Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* toke.c |
a687059c | 2 | * |
1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
a687059c | 5 | * |
d48672a2 LW |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. | |
378cc40b | 8 | * |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
4ac71550 TC |
12 | * 'It all comes from here, the stench and the peril.' --Frodo |
13 | * | |
14 | * [p.719 of _The Lord of the Rings_, IV/ix: "Shelob's Lair"] | |
378cc40b LW |
15 | */ |
16 | ||
9cbb5ea2 GS |
17 | /* |
18 | * This file is the lexer for Perl. It's closely linked to the | |
4e553d73 | 19 | * parser, perly.y. |
ffb4593c NT |
20 | * |
21 | * The main routine is yylex(), which returns the next token. | |
22 | */ | |
23 | ||
f0e67a1d Z |
24 | /* |
25 | =head1 Lexer interface | |
26 | ||
27 | This is the lower layer of the Perl parser, managing characters and tokens. | |
28 | ||
29 | =for apidoc AmU|yy_parser *|PL_parser | |
30 | ||
31 | Pointer to a structure encapsulating the state of the parsing operation | |
32 | currently in progress. The pointer can be locally changed to perform | |
33 | a nested parse without interfering with the state of an outer parse. | |
34 | Individual members of C<PL_parser> have their own documentation. | |
35 | ||
36 | =cut | |
37 | */ | |
38 | ||
378cc40b | 39 | #include "EXTERN.h" |
864dbfa3 | 40 | #define PERL_IN_TOKE_C |
378cc40b | 41 | #include "perl.h" |
378cc40b | 42 | |
eb0d8d16 NC |
43 | #define new_constant(a,b,c,d,e,f,g) \ |
44 | S_new_constant(aTHX_ a,b,STR_WITH_LEN(c),d,e,f, g) | |
45 | ||
6154021b | 46 | #define pl_yylval (PL_parser->yylval) |
d3b6f988 | 47 | |
acdf0a21 DM |
48 | /* YYINITDEPTH -- initial size of the parser's stacks. */ |
49 | #define YYINITDEPTH 200 | |
50 | ||
199e78b7 DM |
51 | /* XXX temporary backwards compatibility */ |
52 | #define PL_lex_brackets (PL_parser->lex_brackets) | |
53 | #define PL_lex_brackstack (PL_parser->lex_brackstack) | |
54 | #define PL_lex_casemods (PL_parser->lex_casemods) | |
55 | #define PL_lex_casestack (PL_parser->lex_casestack) | |
56 | #define PL_lex_defer (PL_parser->lex_defer) | |
57 | #define PL_lex_dojoin (PL_parser->lex_dojoin) | |
58 | #define PL_lex_expect (PL_parser->lex_expect) | |
59 | #define PL_lex_formbrack (PL_parser->lex_formbrack) | |
60 | #define PL_lex_inpat (PL_parser->lex_inpat) | |
61 | #define PL_lex_inwhat (PL_parser->lex_inwhat) | |
62 | #define PL_lex_op (PL_parser->lex_op) | |
63 | #define PL_lex_repl (PL_parser->lex_repl) | |
64 | #define PL_lex_starts (PL_parser->lex_starts) | |
65 | #define PL_lex_stuff (PL_parser->lex_stuff) | |
66 | #define PL_multi_start (PL_parser->multi_start) | |
67 | #define PL_multi_open (PL_parser->multi_open) | |
68 | #define PL_multi_close (PL_parser->multi_close) | |
69 | #define PL_pending_ident (PL_parser->pending_ident) | |
70 | #define PL_preambled (PL_parser->preambled) | |
71 | #define PL_sublex_info (PL_parser->sublex_info) | |
bdc0bf6f | 72 | #define PL_linestr (PL_parser->linestr) |
c2598295 DM |
73 | #define PL_expect (PL_parser->expect) |
74 | #define PL_copline (PL_parser->copline) | |
f06b5848 DM |
75 | #define PL_bufptr (PL_parser->bufptr) |
76 | #define PL_oldbufptr (PL_parser->oldbufptr) | |
77 | #define PL_oldoldbufptr (PL_parser->oldoldbufptr) | |
78 | #define PL_linestart (PL_parser->linestart) | |
79 | #define PL_bufend (PL_parser->bufend) | |
80 | #define PL_last_uni (PL_parser->last_uni) | |
81 | #define PL_last_lop (PL_parser->last_lop) | |
82 | #define PL_last_lop_op (PL_parser->last_lop_op) | |
bc177e6b | 83 | #define PL_lex_state (PL_parser->lex_state) |
2f9285f8 | 84 | #define PL_rsfp (PL_parser->rsfp) |
5486870f | 85 | #define PL_rsfp_filters (PL_parser->rsfp_filters) |
12bd6ede DM |
86 | #define PL_in_my (PL_parser->in_my) |
87 | #define PL_in_my_stash (PL_parser->in_my_stash) | |
14047fc9 | 88 | #define PL_tokenbuf (PL_parser->tokenbuf) |
670a9cb2 | 89 | #define PL_multi_end (PL_parser->multi_end) |
13765c85 | 90 | #define PL_error_count (PL_parser->error_count) |
199e78b7 DM |
91 | |
92 | #ifdef PERL_MAD | |
93 | # define PL_endwhite (PL_parser->endwhite) | |
94 | # define PL_faketokens (PL_parser->faketokens) | |
95 | # define PL_lasttoke (PL_parser->lasttoke) | |
96 | # define PL_nextwhite (PL_parser->nextwhite) | |
97 | # define PL_realtokenstart (PL_parser->realtokenstart) | |
98 | # define PL_skipwhite (PL_parser->skipwhite) | |
99 | # define PL_thisclose (PL_parser->thisclose) | |
100 | # define PL_thismad (PL_parser->thismad) | |
101 | # define PL_thisopen (PL_parser->thisopen) | |
102 | # define PL_thisstuff (PL_parser->thisstuff) | |
103 | # define PL_thistoken (PL_parser->thistoken) | |
104 | # define PL_thiswhite (PL_parser->thiswhite) | |
fb205e7a DM |
105 | # define PL_thiswhite (PL_parser->thiswhite) |
106 | # define PL_nexttoke (PL_parser->nexttoke) | |
107 | # define PL_curforce (PL_parser->curforce) | |
108 | #else | |
109 | # define PL_nexttoke (PL_parser->nexttoke) | |
110 | # define PL_nexttype (PL_parser->nexttype) | |
111 | # define PL_nextval (PL_parser->nextval) | |
199e78b7 DM |
112 | #endif |
113 | ||
16173588 NC |
114 | /* This can't be done with embed.fnc, because struct yy_parser contains a |
115 | member named pending_ident, which clashes with the generated #define */ | |
3cbf51f5 DM |
116 | static int |
117 | S_pending_ident(pTHX); | |
199e78b7 | 118 | |
0bd48802 | 119 | static const char ident_too_long[] = "Identifier too long"; |
8903cb82 | 120 | |
29595ff2 | 121 | #ifdef PERL_MAD |
29595ff2 | 122 | # define CURMAD(slot,sv) if (PL_madskills) { curmad(slot,sv); sv = 0; } |
cd81e915 | 123 | # define NEXTVAL_NEXTTOKE PL_nexttoke[PL_curforce].next_val |
9ded7720 | 124 | #else |
5db06880 | 125 | # define CURMAD(slot,sv) |
9ded7720 | 126 | # define NEXTVAL_NEXTTOKE PL_nextval[PL_nexttoke] |
29595ff2 NC |
127 | #endif |
128 | ||
9059aa12 LW |
129 | #define XFAKEBRACK 128 |
130 | #define XENUMMASK 127 | |
131 | ||
39e02b42 JH |
132 | #ifdef USE_UTF8_SCRIPTS |
133 | # define UTF (!IN_BYTES) | |
2b9d42f0 | 134 | #else |
746b446a | 135 | # define UTF ((PL_linestr && DO_UTF8(PL_linestr)) || (PL_hints & HINT_UTF8)) |
2b9d42f0 | 136 | #endif |
a0ed51b3 | 137 | |
b1fc3636 CJ |
138 | /* The maximum number of characters preceding the unrecognized one to display */ |
139 | #define UNRECOGNIZED_PRECEDE_COUNT 10 | |
140 | ||
61f0cdd9 | 141 | /* In variables named $^X, these are the legal values for X. |
2b92dfce GS |
142 | * 1999-02-27 mjd-perl-patch@plover.com */ |
143 | #define isCONTROLVAR(x) (isUPPER(x) || strchr("[\\]^_?", (x))) | |
144 | ||
bf4acbe4 | 145 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\t') |
bf4acbe4 | 146 | |
ffb4593c NT |
147 | /* LEX_* are values for PL_lex_state, the state of the lexer. |
148 | * They are arranged oddly so that the guard on the switch statement | |
79072805 LW |
149 | * can get by with a single comparison (if the compiler is smart enough). |
150 | */ | |
151 | ||
fb73857a | 152 | /* #define LEX_NOTPARSING 11 is done in perl.h. */ |
153 | ||
b6007c36 DM |
154 | #define LEX_NORMAL 10 /* normal code (ie not within "...") */ |
155 | #define LEX_INTERPNORMAL 9 /* code within a string, eg "$foo[$x+1]" */ | |
156 | #define LEX_INTERPCASEMOD 8 /* expecting a \U, \Q or \E etc */ | |
157 | #define LEX_INTERPPUSH 7 /* starting a new sublex parse level */ | |
158 | #define LEX_INTERPSTART 6 /* expecting the start of a $var */ | |
159 | ||
160 | /* at end of code, eg "$x" followed by: */ | |
161 | #define LEX_INTERPEND 5 /* ... eg not one of [, { or -> */ | |
162 | #define LEX_INTERPENDMAYBE 4 /* ... eg one of [, { or -> */ | |
163 | ||
164 | #define LEX_INTERPCONCAT 3 /* expecting anything, eg at start of | |
165 | string or after \E, $foo, etc */ | |
166 | #define LEX_INTERPCONST 2 /* NOT USED */ | |
167 | #define LEX_FORMLINE 1 /* expecting a format line */ | |
168 | #define LEX_KNOWNEXT 0 /* next token known; just return it */ | |
169 | ||
79072805 | 170 | |
bbf60fe6 | 171 | #ifdef DEBUGGING |
27da23d5 | 172 | static const char* const lex_state_names[] = { |
bbf60fe6 DM |
173 | "KNOWNEXT", |
174 | "FORMLINE", | |
175 | "INTERPCONST", | |
176 | "INTERPCONCAT", | |
177 | "INTERPENDMAYBE", | |
178 | "INTERPEND", | |
179 | "INTERPSTART", | |
180 | "INTERPPUSH", | |
181 | "INTERPCASEMOD", | |
182 | "INTERPNORMAL", | |
183 | "NORMAL" | |
184 | }; | |
185 | #endif | |
186 | ||
79072805 LW |
187 | #ifdef ff_next |
188 | #undef ff_next | |
d48672a2 LW |
189 | #endif |
190 | ||
79072805 | 191 | #include "keywords.h" |
fe14fcc3 | 192 | |
ffb4593c NT |
193 | /* CLINE is a macro that ensures PL_copline has a sane value */ |
194 | ||
ae986130 LW |
195 | #ifdef CLINE |
196 | #undef CLINE | |
197 | #endif | |
57843af0 | 198 | #define CLINE (PL_copline = (CopLINE(PL_curcop) < PL_copline ? CopLINE(PL_curcop) : PL_copline)) |
3280af22 | 199 | |
5db06880 | 200 | #ifdef PERL_MAD |
29595ff2 NC |
201 | # define SKIPSPACE0(s) skipspace0(s) |
202 | # define SKIPSPACE1(s) skipspace1(s) | |
203 | # define SKIPSPACE2(s,tsv) skipspace2(s,&tsv) | |
204 | # define PEEKSPACE(s) skipspace2(s,0) | |
205 | #else | |
206 | # define SKIPSPACE0(s) skipspace(s) | |
207 | # define SKIPSPACE1(s) skipspace(s) | |
208 | # define SKIPSPACE2(s,tsv) skipspace(s) | |
209 | # define PEEKSPACE(s) skipspace(s) | |
210 | #endif | |
211 | ||
ffb4593c NT |
212 | /* |
213 | * Convenience functions to return different tokens and prime the | |
9cbb5ea2 | 214 | * lexer for the next token. They all take an argument. |
ffb4593c NT |
215 | * |
216 | * TOKEN : generic token (used for '(', DOLSHARP, etc) | |
217 | * OPERATOR : generic operator | |
218 | * AOPERATOR : assignment operator | |
219 | * PREBLOCK : beginning the block after an if, while, foreach, ... | |
220 | * PRETERMBLOCK : beginning a non-code-defining {} block (eg, hash ref) | |
221 | * PREREF : *EXPR where EXPR is not a simple identifier | |
222 | * TERM : expression term | |
223 | * LOOPX : loop exiting command (goto, last, dump, etc) | |
224 | * FTST : file test operator | |
225 | * FUN0 : zero-argument function | |
2d2e263d | 226 | * FUN1 : not used, except for not, which isn't a UNIOP |
ffb4593c NT |
227 | * BOop : bitwise or or xor |
228 | * BAop : bitwise and | |
229 | * SHop : shift operator | |
230 | * PWop : power operator | |
9cbb5ea2 | 231 | * PMop : pattern-matching operator |
ffb4593c NT |
232 | * Aop : addition-level operator |
233 | * Mop : multiplication-level operator | |
234 | * Eop : equality-testing operator | |
e5edeb50 | 235 | * Rop : relational operator <= != gt |
ffb4593c NT |
236 | * |
237 | * Also see LOP and lop() below. | |
238 | */ | |
239 | ||
998054bd | 240 | #ifdef DEBUGGING /* Serve -DT. */ |
704d4215 | 241 | # define REPORT(retval) tokereport((I32)retval, &pl_yylval) |
998054bd | 242 | #else |
bbf60fe6 | 243 | # define REPORT(retval) (retval) |
998054bd SC |
244 | #endif |
245 | ||
bbf60fe6 DM |
246 | #define TOKEN(retval) return ( PL_bufptr = s, REPORT(retval)) |
247 | #define OPERATOR(retval) return (PL_expect = XTERM, PL_bufptr = s, REPORT(retval)) | |
248 | #define AOPERATOR(retval) return ao((PL_expect = XTERM, PL_bufptr = s, REPORT(retval))) | |
249 | #define PREBLOCK(retval) return (PL_expect = XBLOCK,PL_bufptr = s, REPORT(retval)) | |
250 | #define PRETERMBLOCK(retval) return (PL_expect = XTERMBLOCK,PL_bufptr = s, REPORT(retval)) | |
251 | #define PREREF(retval) return (PL_expect = XREF,PL_bufptr = s, REPORT(retval)) | |
252 | #define TERM(retval) return (CLINE, PL_expect = XOPERATOR, PL_bufptr = s, REPORT(retval)) | |
6154021b RGS |
253 | #define LOOPX(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)LOOPEX)) |
254 | #define FTST(f) return (pl_yylval.ival=f, PL_expect=XTERMORDORDOR, PL_bufptr=s, REPORT((int)UNIOP)) | |
255 | #define FUN0(f) return (pl_yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC0)) | |
256 | #define FUN1(f) return (pl_yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC1)) | |
257 | #define BOop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITOROP))) | |
258 | #define BAop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITANDOP))) | |
259 | #define SHop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)SHIFTOP))) | |
260 | #define PWop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)POWOP))) | |
261 | #define PMop(f) return(pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MATCHOP)) | |
262 | #define Aop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)ADDOP))) | |
263 | #define Mop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MULOP))) | |
264 | #define Eop(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)EQOP)) | |
265 | #define Rop(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)RELOP)) | |
2f3197b3 | 266 | |
a687059c LW |
267 | /* This bit of chicanery makes a unary function followed by |
268 | * a parenthesis into a function with one argument, highest precedence. | |
6f33ba73 RGS |
269 | * The UNIDOR macro is for unary functions that can be followed by the // |
270 | * operator (such as C<shift // 0>). | |
a687059c | 271 | */ |
376fcdbf | 272 | #define UNI2(f,x) { \ |
6154021b | 273 | pl_yylval.ival = f; \ |
376fcdbf AL |
274 | PL_expect = x; \ |
275 | PL_bufptr = s; \ | |
276 | PL_last_uni = PL_oldbufptr; \ | |
277 | PL_last_lop_op = f; \ | |
278 | if (*s == '(') \ | |
279 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 280 | s = PEEKSPACE(s); \ |
376fcdbf AL |
281 | return REPORT( *s=='(' ? (int)FUNC1 : (int)UNIOP ); \ |
282 | } | |
6f33ba73 RGS |
283 | #define UNI(f) UNI2(f,XTERM) |
284 | #define UNIDOR(f) UNI2(f,XTERMORDORDOR) | |
a687059c | 285 | |
376fcdbf | 286 | #define UNIBRACK(f) { \ |
6154021b | 287 | pl_yylval.ival = f; \ |
376fcdbf AL |
288 | PL_bufptr = s; \ |
289 | PL_last_uni = PL_oldbufptr; \ | |
290 | if (*s == '(') \ | |
291 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 292 | s = PEEKSPACE(s); \ |
376fcdbf AL |
293 | return REPORT( (*s == '(') ? (int)FUNC1 : (int)UNIOP ); \ |
294 | } | |
79072805 | 295 | |
9f68db38 | 296 | /* grandfather return to old style */ |
6154021b | 297 | #define OLDLOP(f) return(pl_yylval.ival=f,PL_expect = XTERM,PL_bufptr = s,(int)LSTOP) |
79072805 | 298 | |
8fa7f367 JH |
299 | #ifdef DEBUGGING |
300 | ||
6154021b | 301 | /* how to interpret the pl_yylval associated with the token */ |
bbf60fe6 DM |
302 | enum token_type { |
303 | TOKENTYPE_NONE, | |
304 | TOKENTYPE_IVAL, | |
6154021b | 305 | TOKENTYPE_OPNUM, /* pl_yylval.ival contains an opcode number */ |
bbf60fe6 DM |
306 | TOKENTYPE_PVAL, |
307 | TOKENTYPE_OPVAL, | |
308 | TOKENTYPE_GVVAL | |
309 | }; | |
310 | ||
6d4a66ac NC |
311 | static struct debug_tokens { |
312 | const int token; | |
313 | enum token_type type; | |
314 | const char *name; | |
315 | } const debug_tokens[] = | |
9041c2e3 | 316 | { |
bbf60fe6 DM |
317 | { ADDOP, TOKENTYPE_OPNUM, "ADDOP" }, |
318 | { ANDAND, TOKENTYPE_NONE, "ANDAND" }, | |
319 | { ANDOP, TOKENTYPE_NONE, "ANDOP" }, | |
320 | { ANONSUB, TOKENTYPE_IVAL, "ANONSUB" }, | |
321 | { ARROW, TOKENTYPE_NONE, "ARROW" }, | |
322 | { ASSIGNOP, TOKENTYPE_OPNUM, "ASSIGNOP" }, | |
323 | { BITANDOP, TOKENTYPE_OPNUM, "BITANDOP" }, | |
324 | { BITOROP, TOKENTYPE_OPNUM, "BITOROP" }, | |
325 | { COLONATTR, TOKENTYPE_NONE, "COLONATTR" }, | |
326 | { CONTINUE, TOKENTYPE_NONE, "CONTINUE" }, | |
0d863452 | 327 | { DEFAULT, TOKENTYPE_NONE, "DEFAULT" }, |
bbf60fe6 DM |
328 | { DO, TOKENTYPE_NONE, "DO" }, |
329 | { DOLSHARP, TOKENTYPE_NONE, "DOLSHARP" }, | |
330 | { DORDOR, TOKENTYPE_NONE, "DORDOR" }, | |
331 | { DOROP, TOKENTYPE_OPNUM, "DOROP" }, | |
332 | { DOTDOT, TOKENTYPE_IVAL, "DOTDOT" }, | |
333 | { ELSE, TOKENTYPE_NONE, "ELSE" }, | |
334 | { ELSIF, TOKENTYPE_IVAL, "ELSIF" }, | |
335 | { EQOP, TOKENTYPE_OPNUM, "EQOP" }, | |
336 | { FOR, TOKENTYPE_IVAL, "FOR" }, | |
337 | { FORMAT, TOKENTYPE_NONE, "FORMAT" }, | |
338 | { FUNC, TOKENTYPE_OPNUM, "FUNC" }, | |
339 | { FUNC0, TOKENTYPE_OPNUM, "FUNC0" }, | |
340 | { FUNC0SUB, TOKENTYPE_OPVAL, "FUNC0SUB" }, | |
341 | { FUNC1, TOKENTYPE_OPNUM, "FUNC1" }, | |
342 | { FUNCMETH, TOKENTYPE_OPVAL, "FUNCMETH" }, | |
0d863452 | 343 | { GIVEN, TOKENTYPE_IVAL, "GIVEN" }, |
bbf60fe6 DM |
344 | { HASHBRACK, TOKENTYPE_NONE, "HASHBRACK" }, |
345 | { IF, TOKENTYPE_IVAL, "IF" }, | |
346 | { LABEL, TOKENTYPE_PVAL, "LABEL" }, | |
347 | { LOCAL, TOKENTYPE_IVAL, "LOCAL" }, | |
348 | { LOOPEX, TOKENTYPE_OPNUM, "LOOPEX" }, | |
349 | { LSTOP, TOKENTYPE_OPNUM, "LSTOP" }, | |
350 | { LSTOPSUB, TOKENTYPE_OPVAL, "LSTOPSUB" }, | |
351 | { MATCHOP, TOKENTYPE_OPNUM, "MATCHOP" }, | |
352 | { METHOD, TOKENTYPE_OPVAL, "METHOD" }, | |
353 | { MULOP, TOKENTYPE_OPNUM, "MULOP" }, | |
354 | { MY, TOKENTYPE_IVAL, "MY" }, | |
355 | { MYSUB, TOKENTYPE_NONE, "MYSUB" }, | |
356 | { NOAMP, TOKENTYPE_NONE, "NOAMP" }, | |
357 | { NOTOP, TOKENTYPE_NONE, "NOTOP" }, | |
358 | { OROP, TOKENTYPE_IVAL, "OROP" }, | |
359 | { OROR, TOKENTYPE_NONE, "OROR" }, | |
360 | { PACKAGE, TOKENTYPE_NONE, "PACKAGE" }, | |
88e1f1a2 JV |
361 | { PLUGEXPR, TOKENTYPE_OPVAL, "PLUGEXPR" }, |
362 | { PLUGSTMT, TOKENTYPE_OPVAL, "PLUGSTMT" }, | |
bbf60fe6 DM |
363 | { PMFUNC, TOKENTYPE_OPVAL, "PMFUNC" }, |
364 | { POSTDEC, TOKENTYPE_NONE, "POSTDEC" }, | |
365 | { POSTINC, TOKENTYPE_NONE, "POSTINC" }, | |
366 | { POWOP, TOKENTYPE_OPNUM, "POWOP" }, | |
367 | { PREDEC, TOKENTYPE_NONE, "PREDEC" }, | |
368 | { PREINC, TOKENTYPE_NONE, "PREINC" }, | |
369 | { PRIVATEREF, TOKENTYPE_OPVAL, "PRIVATEREF" }, | |
370 | { REFGEN, TOKENTYPE_NONE, "REFGEN" }, | |
371 | { RELOP, TOKENTYPE_OPNUM, "RELOP" }, | |
372 | { SHIFTOP, TOKENTYPE_OPNUM, "SHIFTOP" }, | |
373 | { SUB, TOKENTYPE_NONE, "SUB" }, | |
374 | { THING, TOKENTYPE_OPVAL, "THING" }, | |
375 | { UMINUS, TOKENTYPE_NONE, "UMINUS" }, | |
376 | { UNIOP, TOKENTYPE_OPNUM, "UNIOP" }, | |
377 | { UNIOPSUB, TOKENTYPE_OPVAL, "UNIOPSUB" }, | |
378 | { UNLESS, TOKENTYPE_IVAL, "UNLESS" }, | |
379 | { UNTIL, TOKENTYPE_IVAL, "UNTIL" }, | |
380 | { USE, TOKENTYPE_IVAL, "USE" }, | |
0d863452 | 381 | { WHEN, TOKENTYPE_IVAL, "WHEN" }, |
bbf60fe6 DM |
382 | { WHILE, TOKENTYPE_IVAL, "WHILE" }, |
383 | { WORD, TOKENTYPE_OPVAL, "WORD" }, | |
be25f609 | 384 | { YADAYADA, TOKENTYPE_IVAL, "YADAYADA" }, |
c35e046a | 385 | { 0, TOKENTYPE_NONE, NULL } |
bbf60fe6 DM |
386 | }; |
387 | ||
6154021b | 388 | /* dump the returned token in rv, plus any optional arg in pl_yylval */ |
998054bd | 389 | |
bbf60fe6 | 390 | STATIC int |
704d4215 | 391 | S_tokereport(pTHX_ I32 rv, const YYSTYPE* lvalp) |
bbf60fe6 | 392 | { |
97aff369 | 393 | dVAR; |
7918f24d NC |
394 | |
395 | PERL_ARGS_ASSERT_TOKEREPORT; | |
396 | ||
bbf60fe6 | 397 | if (DEBUG_T_TEST) { |
bd61b366 | 398 | const char *name = NULL; |
bbf60fe6 | 399 | enum token_type type = TOKENTYPE_NONE; |
f54cb97a | 400 | const struct debug_tokens *p; |
396482e1 | 401 | SV* const report = newSVpvs("<== "); |
bbf60fe6 | 402 | |
f54cb97a | 403 | for (p = debug_tokens; p->token; p++) { |
bbf60fe6 DM |
404 | if (p->token == (int)rv) { |
405 | name = p->name; | |
406 | type = p->type; | |
407 | break; | |
408 | } | |
409 | } | |
410 | if (name) | |
54667de8 | 411 | Perl_sv_catpv(aTHX_ report, name); |
bbf60fe6 DM |
412 | else if ((char)rv > ' ' && (char)rv < '~') |
413 | Perl_sv_catpvf(aTHX_ report, "'%c'", (char)rv); | |
414 | else if (!rv) | |
396482e1 | 415 | sv_catpvs(report, "EOF"); |
bbf60fe6 DM |
416 | else |
417 | Perl_sv_catpvf(aTHX_ report, "?? %"IVdf, (IV)rv); | |
418 | switch (type) { | |
419 | case TOKENTYPE_NONE: | |
420 | case TOKENTYPE_GVVAL: /* doesn't appear to be used */ | |
421 | break; | |
422 | case TOKENTYPE_IVAL: | |
704d4215 | 423 | Perl_sv_catpvf(aTHX_ report, "(ival=%"IVdf")", (IV)lvalp->ival); |
bbf60fe6 DM |
424 | break; |
425 | case TOKENTYPE_OPNUM: | |
426 | Perl_sv_catpvf(aTHX_ report, "(ival=op_%s)", | |
704d4215 | 427 | PL_op_name[lvalp->ival]); |
bbf60fe6 DM |
428 | break; |
429 | case TOKENTYPE_PVAL: | |
704d4215 | 430 | Perl_sv_catpvf(aTHX_ report, "(pval=\"%s\")", lvalp->pval); |
bbf60fe6 DM |
431 | break; |
432 | case TOKENTYPE_OPVAL: | |
704d4215 | 433 | if (lvalp->opval) { |
401441c0 | 434 | Perl_sv_catpvf(aTHX_ report, "(opval=op_%s)", |
704d4215 GG |
435 | PL_op_name[lvalp->opval->op_type]); |
436 | if (lvalp->opval->op_type == OP_CONST) { | |
b6007c36 | 437 | Perl_sv_catpvf(aTHX_ report, " %s", |
704d4215 | 438 | SvPEEK(cSVOPx_sv(lvalp->opval))); |
b6007c36 DM |
439 | } |
440 | ||
441 | } | |
401441c0 | 442 | else |
396482e1 | 443 | sv_catpvs(report, "(opval=null)"); |
bbf60fe6 DM |
444 | break; |
445 | } | |
b6007c36 | 446 | PerlIO_printf(Perl_debug_log, "### %s\n\n", SvPV_nolen_const(report)); |
bbf60fe6 DM |
447 | }; |
448 | return (int)rv; | |
998054bd SC |
449 | } |
450 | ||
b6007c36 DM |
451 | |
452 | /* print the buffer with suitable escapes */ | |
453 | ||
454 | STATIC void | |
15f169a1 | 455 | S_printbuf(pTHX_ const char *const fmt, const char *const s) |
b6007c36 | 456 | { |
396482e1 | 457 | SV* const tmp = newSVpvs(""); |
7918f24d NC |
458 | |
459 | PERL_ARGS_ASSERT_PRINTBUF; | |
460 | ||
b6007c36 DM |
461 | PerlIO_printf(Perl_debug_log, fmt, pv_display(tmp, s, strlen(s), 0, 60)); |
462 | SvREFCNT_dec(tmp); | |
463 | } | |
464 | ||
8fa7f367 JH |
465 | #endif |
466 | ||
8290c323 NC |
467 | static int |
468 | S_deprecate_commaless_var_list(pTHX) { | |
469 | PL_expect = XTERM; | |
470 | deprecate("comma-less variable list"); | |
471 | return REPORT(','); /* grandfather non-comma-format format */ | |
472 | } | |
473 | ||
ffb4593c NT |
474 | /* |
475 | * S_ao | |
476 | * | |
c963b151 BD |
477 | * This subroutine detects &&=, ||=, and //= and turns an ANDAND, OROR or DORDOR |
478 | * into an OP_ANDASSIGN, OP_ORASSIGN, or OP_DORASSIGN | |
ffb4593c NT |
479 | */ |
480 | ||
76e3520e | 481 | STATIC int |
cea2e8a9 | 482 | S_ao(pTHX_ int toketype) |
a0d0e21e | 483 | { |
97aff369 | 484 | dVAR; |
3280af22 NIS |
485 | if (*PL_bufptr == '=') { |
486 | PL_bufptr++; | |
a0d0e21e | 487 | if (toketype == ANDAND) |
6154021b | 488 | pl_yylval.ival = OP_ANDASSIGN; |
a0d0e21e | 489 | else if (toketype == OROR) |
6154021b | 490 | pl_yylval.ival = OP_ORASSIGN; |
c963b151 | 491 | else if (toketype == DORDOR) |
6154021b | 492 | pl_yylval.ival = OP_DORASSIGN; |
a0d0e21e LW |
493 | toketype = ASSIGNOP; |
494 | } | |
495 | return toketype; | |
496 | } | |
497 | ||
ffb4593c NT |
498 | /* |
499 | * S_no_op | |
500 | * When Perl expects an operator and finds something else, no_op | |
501 | * prints the warning. It always prints "<something> found where | |
502 | * operator expected. It prints "Missing semicolon on previous line?" | |
503 | * if the surprise occurs at the start of the line. "do you need to | |
504 | * predeclare ..." is printed out for code like "sub bar; foo bar $x" | |
505 | * where the compiler doesn't know if foo is a method call or a function. | |
506 | * It prints "Missing operator before end of line" if there's nothing | |
507 | * after the missing operator, or "... before <...>" if there is something | |
508 | * after the missing operator. | |
509 | */ | |
510 | ||
76e3520e | 511 | STATIC void |
15f169a1 | 512 | S_no_op(pTHX_ const char *const what, char *s) |
463ee0b2 | 513 | { |
97aff369 | 514 | dVAR; |
9d4ba2ae AL |
515 | char * const oldbp = PL_bufptr; |
516 | const bool is_first = (PL_oldbufptr == PL_linestart); | |
68dc0745 | 517 | |
7918f24d NC |
518 | PERL_ARGS_ASSERT_NO_OP; |
519 | ||
1189a94a GS |
520 | if (!s) |
521 | s = oldbp; | |
07c798fb | 522 | else |
1189a94a | 523 | PL_bufptr = s; |
cea2e8a9 | 524 | yywarn(Perl_form(aTHX_ "%s found where operator expected", what)); |
56da5a46 RGS |
525 | if (ckWARN_d(WARN_SYNTAX)) { |
526 | if (is_first) | |
527 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
528 | "\t(Missing semicolon on previous line?)\n"); | |
529 | else if (PL_oldoldbufptr && isIDFIRST_lazy_if(PL_oldoldbufptr,UTF)) { | |
f54cb97a | 530 | const char *t; |
c35e046a AL |
531 | for (t = PL_oldoldbufptr; (isALNUM_lazy_if(t,UTF) || *t == ':'); t++) |
532 | NOOP; | |
56da5a46 RGS |
533 | if (t < PL_bufptr && isSPACE(*t)) |
534 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
535 | "\t(Do you need to predeclare %.*s?)\n", | |
551405c4 | 536 | (int)(t - PL_oldoldbufptr), PL_oldoldbufptr); |
56da5a46 RGS |
537 | } |
538 | else { | |
539 | assert(s >= oldbp); | |
540 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
551405c4 | 541 | "\t(Missing operator before %.*s?)\n", (int)(s - oldbp), oldbp); |
56da5a46 | 542 | } |
07c798fb | 543 | } |
3280af22 | 544 | PL_bufptr = oldbp; |
8990e307 LW |
545 | } |
546 | ||
ffb4593c NT |
547 | /* |
548 | * S_missingterm | |
549 | * Complain about missing quote/regexp/heredoc terminator. | |
d4c19fe8 | 550 | * If it's called with NULL then it cauterizes the line buffer. |
ffb4593c NT |
551 | * If we're in a delimited string and the delimiter is a control |
552 | * character, it's reformatted into a two-char sequence like ^C. | |
553 | * This is fatal. | |
554 | */ | |
555 | ||
76e3520e | 556 | STATIC void |
cea2e8a9 | 557 | S_missingterm(pTHX_ char *s) |
8990e307 | 558 | { |
97aff369 | 559 | dVAR; |
8990e307 LW |
560 | char tmpbuf[3]; |
561 | char q; | |
562 | if (s) { | |
9d4ba2ae | 563 | char * const nl = strrchr(s,'\n'); |
d2719217 | 564 | if (nl) |
8990e307 LW |
565 | *nl = '\0'; |
566 | } | |
463559e7 | 567 | else if (isCNTRL(PL_multi_close)) { |
8990e307 | 568 | *tmpbuf = '^'; |
585ec06d | 569 | tmpbuf[1] = (char)toCTRL(PL_multi_close); |
8990e307 LW |
570 | tmpbuf[2] = '\0'; |
571 | s = tmpbuf; | |
572 | } | |
573 | else { | |
eb160463 | 574 | *tmpbuf = (char)PL_multi_close; |
8990e307 LW |
575 | tmpbuf[1] = '\0'; |
576 | s = tmpbuf; | |
577 | } | |
578 | q = strchr(s,'"') ? '\'' : '"'; | |
cea2e8a9 | 579 | Perl_croak(aTHX_ "Can't find string terminator %c%s%c anywhere before EOF",q,s,q); |
463ee0b2 | 580 | } |
79072805 | 581 | |
ef89dcc3 | 582 | #define FEATURE_IS_ENABLED(name) \ |
0d863452 | 583 | ((0 != (PL_hints & HINT_LOCALIZE_HH)) \ |
89529cee | 584 | && S_feature_is_enabled(aTHX_ STR_WITH_LEN(name))) |
4a731d7b | 585 | /* The longest string we pass in. */ |
1863b879 | 586 | #define MAX_FEATURE_LEN (sizeof("unicode_strings")-1) |
4a731d7b | 587 | |
0d863452 RH |
588 | /* |
589 | * S_feature_is_enabled | |
590 | * Check whether the named feature is enabled. | |
591 | */ | |
592 | STATIC bool | |
15f169a1 | 593 | S_feature_is_enabled(pTHX_ const char *const name, STRLEN namelen) |
0d863452 | 594 | { |
97aff369 | 595 | dVAR; |
0d863452 | 596 | HV * const hinthv = GvHV(PL_hintgv); |
4a731d7b | 597 | char he_name[8 + MAX_FEATURE_LEN] = "feature_"; |
7918f24d NC |
598 | |
599 | PERL_ARGS_ASSERT_FEATURE_IS_ENABLED; | |
600 | ||
4a731d7b NC |
601 | assert(namelen <= MAX_FEATURE_LEN); |
602 | memcpy(&he_name[8], name, namelen); | |
d4c19fe8 | 603 | |
7b9ef140 | 604 | return (hinthv && hv_exists(hinthv, he_name, 8 + namelen)); |
0d863452 RH |
605 | } |
606 | ||
ffb4593c | 607 | /* |
9cbb5ea2 GS |
608 | * experimental text filters for win32 carriage-returns, utf16-to-utf8 and |
609 | * utf16-to-utf8-reversed. | |
ffb4593c NT |
610 | */ |
611 | ||
c39cd008 GS |
612 | #ifdef PERL_CR_FILTER |
613 | static void | |
614 | strip_return(SV *sv) | |
615 | { | |
95a20fc0 | 616 | register const char *s = SvPVX_const(sv); |
9d4ba2ae | 617 | register const char * const e = s + SvCUR(sv); |
7918f24d NC |
618 | |
619 | PERL_ARGS_ASSERT_STRIP_RETURN; | |
620 | ||
c39cd008 GS |
621 | /* outer loop optimized to do nothing if there are no CR-LFs */ |
622 | while (s < e) { | |
623 | if (*s++ == '\r' && *s == '\n') { | |
624 | /* hit a CR-LF, need to copy the rest */ | |
625 | register char *d = s - 1; | |
626 | *d++ = *s++; | |
627 | while (s < e) { | |
628 | if (*s == '\r' && s[1] == '\n') | |
629 | s++; | |
630 | *d++ = *s++; | |
631 | } | |
632 | SvCUR(sv) -= s - d; | |
633 | return; | |
634 | } | |
635 | } | |
636 | } | |
a868473f | 637 | |
76e3520e | 638 | STATIC I32 |
c39cd008 | 639 | S_cr_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
a868473f | 640 | { |
f54cb97a | 641 | const I32 count = FILTER_READ(idx+1, sv, maxlen); |
c39cd008 GS |
642 | if (count > 0 && !maxlen) |
643 | strip_return(sv); | |
644 | return count; | |
a868473f NIS |
645 | } |
646 | #endif | |
647 | ||
199e78b7 DM |
648 | |
649 | ||
ffb4593c NT |
650 | /* |
651 | * Perl_lex_start | |
5486870f | 652 | * |
e3abe207 | 653 | * Create a parser object and initialise its parser and lexer fields |
5486870f DM |
654 | * |
655 | * rsfp is the opened file handle to read from (if any), | |
656 | * | |
657 | * line holds any initial content already read from the file (or in | |
658 | * the case of no file, such as an eval, the whole contents); | |
659 | * | |
660 | * new_filter indicates that this is a new file and it shouldn't inherit | |
661 | * the filters from the current parser (ie require). | |
ffb4593c NT |
662 | */ |
663 | ||
a0d0e21e | 664 | void |
5486870f | 665 | Perl_lex_start(pTHX_ SV *line, PerlIO *rsfp, bool new_filter) |
79072805 | 666 | { |
97aff369 | 667 | dVAR; |
6ef55633 | 668 | const char *s = NULL; |
8990e307 | 669 | STRLEN len; |
5486870f | 670 | yy_parser *parser, *oparser; |
acdf0a21 DM |
671 | |
672 | /* create and initialise a parser */ | |
673 | ||
199e78b7 | 674 | Newxz(parser, 1, yy_parser); |
5486870f | 675 | parser->old_parser = oparser = PL_parser; |
acdf0a21 DM |
676 | PL_parser = parser; |
677 | ||
678 | Newx(parser->stack, YYINITDEPTH, yy_stack_frame); | |
679 | parser->ps = parser->stack; | |
680 | parser->stack_size = YYINITDEPTH; | |
681 | ||
682 | parser->stack->state = 0; | |
683 | parser->yyerrstatus = 0; | |
684 | parser->yychar = YYEMPTY; /* Cause a token to be read. */ | |
685 | ||
e3abe207 DM |
686 | /* on scope exit, free this parser and restore any outer one */ |
687 | SAVEPARSER(parser); | |
7c4baf47 | 688 | parser->saved_curcop = PL_curcop; |
e3abe207 | 689 | |
acdf0a21 | 690 | /* initialise lexer state */ |
8990e307 | 691 | |
fb205e7a DM |
692 | #ifdef PERL_MAD |
693 | parser->curforce = -1; | |
694 | #else | |
695 | parser->nexttoke = 0; | |
696 | #endif | |
ca4cfd28 | 697 | parser->error_count = oparser ? oparser->error_count : 0; |
c2598295 | 698 | parser->copline = NOLINE; |
5afb0a62 | 699 | parser->lex_state = LEX_NORMAL; |
c2598295 | 700 | parser->expect = XSTATE; |
2f9285f8 | 701 | parser->rsfp = rsfp; |
56b27c9a | 702 | parser->rsfp_filters = (new_filter || !oparser) ? newAV() |
502c6561 | 703 | : MUTABLE_AV(SvREFCNT_inc(oparser->rsfp_filters)); |
2f9285f8 | 704 | |
199e78b7 DM |
705 | Newx(parser->lex_brackstack, 120, char); |
706 | Newx(parser->lex_casestack, 12, char); | |
707 | *parser->lex_casestack = '\0'; | |
02b34bbe | 708 | |
10efb74f NC |
709 | if (line) { |
710 | s = SvPV_const(line, len); | |
711 | } else { | |
712 | len = 0; | |
713 | } | |
bdc0bf6f | 714 | |
10efb74f | 715 | if (!len) { |
bdc0bf6f | 716 | parser->linestr = newSVpvs("\n;"); |
10efb74f | 717 | } else if (SvREADONLY(line) || s[len-1] != ';') { |
bdc0bf6f | 718 | parser->linestr = newSVsv(line); |
10efb74f | 719 | if (s[len-1] != ';') |
bdc0bf6f | 720 | sv_catpvs(parser->linestr, "\n;"); |
6c5ce11d NC |
721 | } else { |
722 | SvTEMP_off(line); | |
723 | SvREFCNT_inc_simple_void_NN(line); | |
bdc0bf6f | 724 | parser->linestr = line; |
8990e307 | 725 | } |
f06b5848 DM |
726 | parser->oldoldbufptr = |
727 | parser->oldbufptr = | |
728 | parser->bufptr = | |
729 | parser->linestart = SvPVX(parser->linestr); | |
730 | parser->bufend = parser->bufptr + SvCUR(parser->linestr); | |
731 | parser->last_lop = parser->last_uni = NULL; | |
79072805 | 732 | } |
a687059c | 733 | |
e3abe207 DM |
734 | |
735 | /* delete a parser object */ | |
736 | ||
737 | void | |
738 | Perl_parser_free(pTHX_ const yy_parser *parser) | |
739 | { | |
7918f24d NC |
740 | PERL_ARGS_ASSERT_PARSER_FREE; |
741 | ||
7c4baf47 | 742 | PL_curcop = parser->saved_curcop; |
bdc0bf6f DM |
743 | SvREFCNT_dec(parser->linestr); |
744 | ||
2f9285f8 DM |
745 | if (parser->rsfp == PerlIO_stdin()) |
746 | PerlIO_clearerr(parser->rsfp); | |
799361c3 SH |
747 | else if (parser->rsfp && (!parser->old_parser || |
748 | (parser->old_parser && parser->rsfp != parser->old_parser->rsfp))) | |
2f9285f8 | 749 | PerlIO_close(parser->rsfp); |
5486870f | 750 | SvREFCNT_dec(parser->rsfp_filters); |
2f9285f8 | 751 | |
e3abe207 DM |
752 | Safefree(parser->stack); |
753 | Safefree(parser->lex_brackstack); | |
754 | Safefree(parser->lex_casestack); | |
755 | PL_parser = parser->old_parser; | |
756 | Safefree(parser); | |
757 | } | |
758 | ||
759 | ||
ffb4593c NT |
760 | /* |
761 | * Perl_lex_end | |
9cbb5ea2 GS |
762 | * Finalizer for lexing operations. Must be called when the parser is |
763 | * done with the lexer. | |
ffb4593c NT |
764 | */ |
765 | ||
463ee0b2 | 766 | void |
864dbfa3 | 767 | Perl_lex_end(pTHX) |
463ee0b2 | 768 | { |
97aff369 | 769 | dVAR; |
3280af22 | 770 | PL_doextract = FALSE; |
463ee0b2 LW |
771 | } |
772 | ||
ffb4593c | 773 | /* |
f0e67a1d Z |
774 | =for apidoc AmxU|SV *|PL_parser-E<gt>linestr |
775 | ||
776 | Buffer scalar containing the chunk currently under consideration of the | |
777 | text currently being lexed. This is always a plain string scalar (for | |
778 | which C<SvPOK> is true). It is not intended to be used as a scalar by | |
779 | normal scalar means; instead refer to the buffer directly by the pointer | |
780 | variables described below. | |
781 | ||
782 | The lexer maintains various C<char*> pointers to things in the | |
783 | C<PL_parser-E<gt>linestr> buffer. If C<PL_parser-E<gt>linestr> is ever | |
784 | reallocated, all of these pointers must be updated. Don't attempt to | |
785 | do this manually, but rather use L</lex_grow_linestr> if you need to | |
786 | reallocate the buffer. | |
787 | ||
788 | The content of the text chunk in the buffer is commonly exactly one | |
789 | complete line of input, up to and including a newline terminator, | |
790 | but there are situations where it is otherwise. The octets of the | |
791 | buffer may be intended to be interpreted as either UTF-8 or Latin-1. | |
792 | The function L</lex_bufutf8> tells you which. Do not use the C<SvUTF8> | |
793 | flag on this scalar, which may disagree with it. | |
794 | ||
795 | For direct examination of the buffer, the variable | |
796 | L</PL_parser-E<gt>bufend> points to the end of the buffer. The current | |
797 | lexing position is pointed to by L</PL_parser-E<gt>bufptr>. Direct use | |
798 | of these pointers is usually preferable to examination of the scalar | |
799 | through normal scalar means. | |
800 | ||
801 | =for apidoc AmxU|char *|PL_parser-E<gt>bufend | |
802 | ||
803 | Direct pointer to the end of the chunk of text currently being lexed, the | |
804 | end of the lexer buffer. This is equal to C<SvPVX(PL_parser-E<gt>linestr) | |
805 | + SvCUR(PL_parser-E<gt>linestr)>. A NUL character (zero octet) is | |
806 | always located at the end of the buffer, and does not count as part of | |
807 | the buffer's contents. | |
808 | ||
809 | =for apidoc AmxU|char *|PL_parser-E<gt>bufptr | |
810 | ||
811 | Points to the current position of lexing inside the lexer buffer. | |
812 | Characters around this point may be freely examined, within | |
813 | the range delimited by C<SvPVX(L</PL_parser-E<gt>linestr>)> and | |
814 | L</PL_parser-E<gt>bufend>. The octets of the buffer may be intended to be | |
815 | interpreted as either UTF-8 or Latin-1, as indicated by L</lex_bufutf8>. | |
816 | ||
817 | Lexing code (whether in the Perl core or not) moves this pointer past | |
818 | the characters that it consumes. It is also expected to perform some | |
819 | bookkeeping whenever a newline character is consumed. This movement | |
820 | can be more conveniently performed by the function L</lex_read_to>, | |
821 | which handles newlines appropriately. | |
822 | ||
823 | Interpretation of the buffer's octets can be abstracted out by | |
824 | using the slightly higher-level functions L</lex_peek_unichar> and | |
825 | L</lex_read_unichar>. | |
826 | ||
827 | =for apidoc AmxU|char *|PL_parser-E<gt>linestart | |
828 | ||
829 | Points to the start of the current line inside the lexer buffer. | |
830 | This is useful for indicating at which column an error occurred, and | |
831 | not much else. This must be updated by any lexing code that consumes | |
832 | a newline; the function L</lex_read_to> handles this detail. | |
833 | ||
834 | =cut | |
835 | */ | |
836 | ||
837 | /* | |
838 | =for apidoc Amx|bool|lex_bufutf8 | |
839 | ||
840 | Indicates whether the octets in the lexer buffer | |
841 | (L</PL_parser-E<gt>linestr>) should be interpreted as the UTF-8 encoding | |
842 | of Unicode characters. If not, they should be interpreted as Latin-1 | |
843 | characters. This is analogous to the C<SvUTF8> flag for scalars. | |
844 | ||
845 | In UTF-8 mode, it is not guaranteed that the lexer buffer actually | |
846 | contains valid UTF-8. Lexing code must be robust in the face of invalid | |
847 | encoding. | |
848 | ||
849 | The actual C<SvUTF8> flag of the L</PL_parser-E<gt>linestr> scalar | |
850 | is significant, but not the whole story regarding the input character | |
851 | encoding. Normally, when a file is being read, the scalar contains octets | |
852 | and its C<SvUTF8> flag is off, but the octets should be interpreted as | |
853 | UTF-8 if the C<use utf8> pragma is in effect. During a string eval, | |
854 | however, the scalar may have the C<SvUTF8> flag on, and in this case its | |
855 | octets should be interpreted as UTF-8 unless the C<use bytes> pragma | |
856 | is in effect. This logic may change in the future; use this function | |
857 | instead of implementing the logic yourself. | |
858 | ||
859 | =cut | |
860 | */ | |
861 | ||
862 | bool | |
863 | Perl_lex_bufutf8(pTHX) | |
864 | { | |
865 | return UTF; | |
866 | } | |
867 | ||
868 | /* | |
869 | =for apidoc Amx|char *|lex_grow_linestr|STRLEN len | |
870 | ||
871 | Reallocates the lexer buffer (L</PL_parser-E<gt>linestr>) to accommodate | |
872 | at least I<len> octets (including terminating NUL). Returns a | |
873 | pointer to the reallocated buffer. This is necessary before making | |
874 | any direct modification of the buffer that would increase its length. | |
875 | L</lex_stuff_pvn> provides a more convenient way to insert text into | |
876 | the buffer. | |
877 | ||
878 | Do not use C<SvGROW> or C<sv_grow> directly on C<PL_parser-E<gt>linestr>; | |
879 | this function updates all of the lexer's variables that point directly | |
880 | into the buffer. | |
881 | ||
882 | =cut | |
883 | */ | |
884 | ||
885 | char * | |
886 | Perl_lex_grow_linestr(pTHX_ STRLEN len) | |
887 | { | |
888 | SV *linestr; | |
889 | char *buf; | |
890 | STRLEN bufend_pos, bufptr_pos, oldbufptr_pos, oldoldbufptr_pos; | |
891 | STRLEN linestart_pos, last_uni_pos, last_lop_pos; | |
892 | linestr = PL_parser->linestr; | |
893 | buf = SvPVX(linestr); | |
894 | if (len <= SvLEN(linestr)) | |
895 | return buf; | |
896 | bufend_pos = PL_parser->bufend - buf; | |
897 | bufptr_pos = PL_parser->bufptr - buf; | |
898 | oldbufptr_pos = PL_parser->oldbufptr - buf; | |
899 | oldoldbufptr_pos = PL_parser->oldoldbufptr - buf; | |
900 | linestart_pos = PL_parser->linestart - buf; | |
901 | last_uni_pos = PL_parser->last_uni ? PL_parser->last_uni - buf : 0; | |
902 | last_lop_pos = PL_parser->last_lop ? PL_parser->last_lop - buf : 0; | |
903 | buf = sv_grow(linestr, len); | |
904 | PL_parser->bufend = buf + bufend_pos; | |
905 | PL_parser->bufptr = buf + bufptr_pos; | |
906 | PL_parser->oldbufptr = buf + oldbufptr_pos; | |
907 | PL_parser->oldoldbufptr = buf + oldoldbufptr_pos; | |
908 | PL_parser->linestart = buf + linestart_pos; | |
909 | if (PL_parser->last_uni) | |
910 | PL_parser->last_uni = buf + last_uni_pos; | |
911 | if (PL_parser->last_lop) | |
912 | PL_parser->last_lop = buf + last_lop_pos; | |
913 | return buf; | |
914 | } | |
915 | ||
916 | /* | |
917 | =for apidoc Amx|void|lex_stuff_pvn|char *pv|STRLEN len|U32 flags | |
918 | ||
919 | Insert characters into the lexer buffer (L</PL_parser-E<gt>linestr>), | |
920 | immediately after the current lexing point (L</PL_parser-E<gt>bufptr>), | |
921 | reallocating the buffer if necessary. This means that lexing code that | |
922 | runs later will see the characters as if they had appeared in the input. | |
923 | It is not recommended to do this as part of normal parsing, and most | |
924 | uses of this facility run the risk of the inserted characters being | |
925 | interpreted in an unintended manner. | |
926 | ||
927 | The string to be inserted is represented by I<len> octets starting | |
928 | at I<pv>. These octets are interpreted as either UTF-8 or Latin-1, | |
929 | according to whether the C<LEX_STUFF_UTF8> flag is set in I<flags>. | |
930 | The characters are recoded for the lexer buffer, according to how the | |
931 | buffer is currently being interpreted (L</lex_bufutf8>). If a string | |
932 | to be interpreted is available as a Perl scalar, the L</lex_stuff_sv> | |
933 | function is more convenient. | |
934 | ||
935 | =cut | |
936 | */ | |
937 | ||
938 | void | |
939 | Perl_lex_stuff_pvn(pTHX_ char *pv, STRLEN len, U32 flags) | |
940 | { | |
941 | char *bufptr; | |
942 | PERL_ARGS_ASSERT_LEX_STUFF_PVN; | |
943 | if (flags & ~(LEX_STUFF_UTF8)) | |
944 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_stuff_pvn"); | |
945 | if (UTF) { | |
946 | if (flags & LEX_STUFF_UTF8) { | |
947 | goto plain_copy; | |
948 | } else { | |
949 | STRLEN highhalf = 0; | |
950 | char *p, *e = pv+len; | |
951 | for (p = pv; p != e; p++) | |
952 | highhalf += !!(((U8)*p) & 0x80); | |
953 | if (!highhalf) | |
954 | goto plain_copy; | |
955 | lex_grow_linestr(SvCUR(PL_parser->linestr)+1+len+highhalf); | |
956 | bufptr = PL_parser->bufptr; | |
957 | Move(bufptr, bufptr+len+highhalf, PL_parser->bufend+1-bufptr, char); | |
958 | PL_parser->bufend += len+highhalf; | |
959 | for (p = pv; p != e; p++) { | |
960 | U8 c = (U8)*p; | |
961 | if (c & 0x80) { | |
962 | *bufptr++ = (char)(0xc0 | (c >> 6)); | |
963 | *bufptr++ = (char)(0x80 | (c & 0x3f)); | |
964 | } else { | |
965 | *bufptr++ = (char)c; | |
966 | } | |
967 | } | |
968 | } | |
969 | } else { | |
970 | if (flags & LEX_STUFF_UTF8) { | |
971 | STRLEN highhalf = 0; | |
972 | char *p, *e = pv+len; | |
973 | for (p = pv; p != e; p++) { | |
974 | U8 c = (U8)*p; | |
975 | if (c >= 0xc4) { | |
976 | Perl_croak(aTHX_ "Lexing code attempted to stuff " | |
977 | "non-Latin-1 character into Latin-1 input"); | |
978 | } else if (c >= 0xc2 && p+1 != e && | |
979 | (((U8)p[1]) & 0xc0) == 0x80) { | |
980 | p++; | |
981 | highhalf++; | |
982 | } else if (c >= 0x80) { | |
983 | /* malformed UTF-8 */ | |
984 | ENTER; | |
985 | SAVESPTR(PL_warnhook); | |
986 | PL_warnhook = PERL_WARNHOOK_FATAL; | |
987 | utf8n_to_uvuni((U8*)p, e-p, NULL, 0); | |
988 | LEAVE; | |
989 | } | |
990 | } | |
991 | if (!highhalf) | |
992 | goto plain_copy; | |
993 | lex_grow_linestr(SvCUR(PL_parser->linestr)+1+len-highhalf); | |
994 | bufptr = PL_parser->bufptr; | |
995 | Move(bufptr, bufptr+len-highhalf, PL_parser->bufend+1-bufptr, char); | |
996 | PL_parser->bufend += len-highhalf; | |
997 | for (p = pv; p != e; p++) { | |
998 | U8 c = (U8)*p; | |
999 | if (c & 0x80) { | |
1000 | *bufptr++ = (char)(((c & 0x3) << 6) | (p[1] & 0x3f)); | |
1001 | p++; | |
1002 | } else { | |
1003 | *bufptr++ = (char)c; | |
1004 | } | |
1005 | } | |
1006 | } else { | |
1007 | plain_copy: | |
1008 | lex_grow_linestr(SvCUR(PL_parser->linestr)+1+len); | |
1009 | bufptr = PL_parser->bufptr; | |
1010 | Move(bufptr, bufptr+len, PL_parser->bufend+1-bufptr, char); | |
1011 | PL_parser->bufend += len; | |
1012 | Copy(pv, bufptr, len, char); | |
1013 | } | |
1014 | } | |
1015 | } | |
1016 | ||
1017 | /* | |
1018 | =for apidoc Amx|void|lex_stuff_sv|SV *sv|U32 flags | |
1019 | ||
1020 | Insert characters into the lexer buffer (L</PL_parser-E<gt>linestr>), | |
1021 | immediately after the current lexing point (L</PL_parser-E<gt>bufptr>), | |
1022 | reallocating the buffer if necessary. This means that lexing code that | |
1023 | runs later will see the characters as if they had appeared in the input. | |
1024 | It is not recommended to do this as part of normal parsing, and most | |
1025 | uses of this facility run the risk of the inserted characters being | |
1026 | interpreted in an unintended manner. | |
1027 | ||
1028 | The string to be inserted is the string value of I<sv>. The characters | |
1029 | are recoded for the lexer buffer, according to how the buffer is currently | |
1030 | being interpreted (L</lex_bufutf8>). If a string to be interpreted is | |
1031 | not already a Perl scalar, the L</lex_stuff_pvn> function avoids the | |
1032 | need to construct a scalar. | |
1033 | ||
1034 | =cut | |
1035 | */ | |
1036 | ||
1037 | void | |
1038 | Perl_lex_stuff_sv(pTHX_ SV *sv, U32 flags) | |
1039 | { | |
1040 | char *pv; | |
1041 | STRLEN len; | |
1042 | PERL_ARGS_ASSERT_LEX_STUFF_SV; | |
1043 | if (flags) | |
1044 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_stuff_sv"); | |
1045 | pv = SvPV(sv, len); | |
1046 | lex_stuff_pvn(pv, len, flags | (SvUTF8(sv) ? LEX_STUFF_UTF8 : 0)); | |
1047 | } | |
1048 | ||
1049 | /* | |
1050 | =for apidoc Amx|void|lex_unstuff|char *ptr | |
1051 | ||
1052 | Discards text about to be lexed, from L</PL_parser-E<gt>bufptr> up to | |
1053 | I<ptr>. Text following I<ptr> will be moved, and the buffer shortened. | |
1054 | This hides the discarded text from any lexing code that runs later, | |
1055 | as if the text had never appeared. | |
1056 | ||
1057 | This is not the normal way to consume lexed text. For that, use | |
1058 | L</lex_read_to>. | |
1059 | ||
1060 | =cut | |
1061 | */ | |
1062 | ||
1063 | void | |
1064 | Perl_lex_unstuff(pTHX_ char *ptr) | |
1065 | { | |
1066 | char *buf, *bufend; | |
1067 | STRLEN unstuff_len; | |
1068 | PERL_ARGS_ASSERT_LEX_UNSTUFF; | |
1069 | buf = PL_parser->bufptr; | |
1070 | if (ptr < buf) | |
1071 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_unstuff"); | |
1072 | if (ptr == buf) | |
1073 | return; | |
1074 | bufend = PL_parser->bufend; | |
1075 | if (ptr > bufend) | |
1076 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_unstuff"); | |
1077 | unstuff_len = ptr - buf; | |
1078 | Move(ptr, buf, bufend+1-ptr, char); | |
1079 | SvCUR_set(PL_parser->linestr, SvCUR(PL_parser->linestr) - unstuff_len); | |
1080 | PL_parser->bufend = bufend - unstuff_len; | |
1081 | } | |
1082 | ||
1083 | /* | |
1084 | =for apidoc Amx|void|lex_read_to|char *ptr | |
1085 | ||
1086 | Consume text in the lexer buffer, from L</PL_parser-E<gt>bufptr> up | |
1087 | to I<ptr>. This advances L</PL_parser-E<gt>bufptr> to match I<ptr>, | |
1088 | performing the correct bookkeeping whenever a newline character is passed. | |
1089 | This is the normal way to consume lexed text. | |
1090 | ||
1091 | Interpretation of the buffer's octets can be abstracted out by | |
1092 | using the slightly higher-level functions L</lex_peek_unichar> and | |
1093 | L</lex_read_unichar>. | |
1094 | ||
1095 | =cut | |
1096 | */ | |
1097 | ||
1098 | void | |
1099 | Perl_lex_read_to(pTHX_ char *ptr) | |
1100 | { | |
1101 | char *s; | |
1102 | PERL_ARGS_ASSERT_LEX_READ_TO; | |
1103 | s = PL_parser->bufptr; | |
1104 | if (ptr < s || ptr > PL_parser->bufend) | |
1105 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_read_to"); | |
1106 | for (; s != ptr; s++) | |
1107 | if (*s == '\n') { | |
1108 | CopLINE_inc(PL_curcop); | |
1109 | PL_parser->linestart = s+1; | |
1110 | } | |
1111 | PL_parser->bufptr = ptr; | |
1112 | } | |
1113 | ||
1114 | /* | |
1115 | =for apidoc Amx|void|lex_discard_to|char *ptr | |
1116 | ||
1117 | Discards the first part of the L</PL_parser-E<gt>linestr> buffer, | |
1118 | up to I<ptr>. The remaining content of the buffer will be moved, and | |
1119 | all pointers into the buffer updated appropriately. I<ptr> must not | |
1120 | be later in the buffer than the position of L</PL_parser-E<gt>bufptr>: | |
1121 | it is not permitted to discard text that has yet to be lexed. | |
1122 | ||
1123 | Normally it is not necessarily to do this directly, because it suffices to | |
1124 | use the implicit discarding behaviour of L</lex_next_chunk> and things | |
1125 | based on it. However, if a token stretches across multiple lines, | |
1126 | and the lexing code has kept multiple lines of text in the buffer fof | |
1127 | that purpose, then after completion of the token it would be wise to | |
1128 | explicitly discard the now-unneeded earlier lines, to avoid future | |
1129 | multi-line tokens growing the buffer without bound. | |
1130 | ||
1131 | =cut | |
1132 | */ | |
1133 | ||
1134 | void | |
1135 | Perl_lex_discard_to(pTHX_ char *ptr) | |
1136 | { | |
1137 | char *buf; | |
1138 | STRLEN discard_len; | |
1139 | PERL_ARGS_ASSERT_LEX_DISCARD_TO; | |
1140 | buf = SvPVX(PL_parser->linestr); | |
1141 | if (ptr < buf) | |
1142 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_discard_to"); | |
1143 | if (ptr == buf) | |
1144 | return; | |
1145 | if (ptr > PL_parser->bufptr) | |
1146 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_discard_to"); | |
1147 | discard_len = ptr - buf; | |
1148 | if (PL_parser->oldbufptr < ptr) | |
1149 | PL_parser->oldbufptr = ptr; | |
1150 | if (PL_parser->oldoldbufptr < ptr) | |
1151 | PL_parser->oldoldbufptr = ptr; | |
1152 | if (PL_parser->last_uni && PL_parser->last_uni < ptr) | |
1153 | PL_parser->last_uni = NULL; | |
1154 | if (PL_parser->last_lop && PL_parser->last_lop < ptr) | |
1155 | PL_parser->last_lop = NULL; | |
1156 | Move(ptr, buf, PL_parser->bufend+1-ptr, char); | |
1157 | SvCUR_set(PL_parser->linestr, SvCUR(PL_parser->linestr) - discard_len); | |
1158 | PL_parser->bufend -= discard_len; | |
1159 | PL_parser->bufptr -= discard_len; | |
1160 | PL_parser->oldbufptr -= discard_len; | |
1161 | PL_parser->oldoldbufptr -= discard_len; | |
1162 | if (PL_parser->last_uni) | |
1163 | PL_parser->last_uni -= discard_len; | |
1164 | if (PL_parser->last_lop) | |
1165 | PL_parser->last_lop -= discard_len; | |
1166 | } | |
1167 | ||
1168 | /* | |
1169 | =for apidoc Amx|bool|lex_next_chunk|U32 flags | |
1170 | ||
1171 | Reads in the next chunk of text to be lexed, appending it to | |
1172 | L</PL_parser-E<gt>linestr>. This should be called when lexing code has | |
1173 | looked to the end of the current chunk and wants to know more. It is | |
1174 | usual, but not necessary, for lexing to have consumed the entirety of | |
1175 | the current chunk at this time. | |
1176 | ||
1177 | If L</PL_parser-E<gt>bufptr> is pointing to the very end of the current | |
1178 | chunk (i.e., the current chunk has been entirely consumed), normally the | |
1179 | current chunk will be discarded at the same time that the new chunk is | |
1180 | read in. If I<flags> includes C<LEX_KEEP_PREVIOUS>, the current chunk | |
1181 | will not be discarded. If the current chunk has not been entirely | |
1182 | consumed, then it will not be discarded regardless of the flag. | |
1183 | ||
1184 | Returns true if some new text was added to the buffer, or false if the | |
1185 | buffer has reached the end of the input text. | |
1186 | ||
1187 | =cut | |
1188 | */ | |
1189 | ||
1190 | #define LEX_FAKE_EOF 0x80000000 | |
1191 | ||
1192 | bool | |
1193 | Perl_lex_next_chunk(pTHX_ U32 flags) | |
1194 | { | |
1195 | SV *linestr; | |
1196 | char *buf; | |
1197 | STRLEN old_bufend_pos, new_bufend_pos; | |
1198 | STRLEN bufptr_pos, oldbufptr_pos, oldoldbufptr_pos; | |
1199 | STRLEN linestart_pos, last_uni_pos, last_lop_pos; | |
17cc9359 | 1200 | bool got_some_for_debugger = 0; |
f0e67a1d Z |
1201 | bool got_some; |
1202 | if (flags & ~(LEX_KEEP_PREVIOUS|LEX_FAKE_EOF)) | |
1203 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_next_chunk"); | |
f0e67a1d Z |
1204 | linestr = PL_parser->linestr; |
1205 | buf = SvPVX(linestr); | |
1206 | if (!(flags & LEX_KEEP_PREVIOUS) && | |
1207 | PL_parser->bufptr == PL_parser->bufend) { | |
1208 | old_bufend_pos = bufptr_pos = oldbufptr_pos = oldoldbufptr_pos = 0; | |
1209 | linestart_pos = 0; | |
1210 | if (PL_parser->last_uni != PL_parser->bufend) | |
1211 | PL_parser->last_uni = NULL; | |
1212 | if (PL_parser->last_lop != PL_parser->bufend) | |
1213 | PL_parser->last_lop = NULL; | |
1214 | last_uni_pos = last_lop_pos = 0; | |
1215 | *buf = 0; | |
1216 | SvCUR(linestr) = 0; | |
1217 | } else { | |
1218 | old_bufend_pos = PL_parser->bufend - buf; | |
1219 | bufptr_pos = PL_parser->bufptr - buf; | |
1220 | oldbufptr_pos = PL_parser->oldbufptr - buf; | |
1221 | oldoldbufptr_pos = PL_parser->oldoldbufptr - buf; | |
1222 | linestart_pos = PL_parser->linestart - buf; | |
1223 | last_uni_pos = PL_parser->last_uni ? PL_parser->last_uni - buf : 0; | |
1224 | last_lop_pos = PL_parser->last_lop ? PL_parser->last_lop - buf : 0; | |
1225 | } | |
1226 | if (flags & LEX_FAKE_EOF) { | |
1227 | goto eof; | |
1228 | } else if (!PL_parser->rsfp) { | |
1229 | got_some = 0; | |
1230 | } else if (filter_gets(linestr, old_bufend_pos)) { | |
1231 | got_some = 1; | |
17cc9359 | 1232 | got_some_for_debugger = 1; |
f0e67a1d | 1233 | } else { |
580561a3 Z |
1234 | if (!SvPOK(linestr)) /* can get undefined by filter_gets */ |
1235 | sv_setpvs(linestr, ""); | |
f0e67a1d Z |
1236 | eof: |
1237 | /* End of real input. Close filehandle (unless it was STDIN), | |
1238 | * then add implicit termination. | |
1239 | */ | |
1240 | if ((PerlIO*)PL_parser->rsfp == PerlIO_stdin()) | |
1241 | PerlIO_clearerr(PL_parser->rsfp); | |
1242 | else if (PL_parser->rsfp) | |
1243 | (void)PerlIO_close(PL_parser->rsfp); | |
1244 | PL_parser->rsfp = NULL; | |
1245 | PL_doextract = FALSE; | |
1246 | #ifdef PERL_MAD | |
1247 | if (PL_madskills && !PL_in_eval && (PL_minus_p || PL_minus_n)) | |
1248 | PL_faketokens = 1; | |
1249 | #endif | |
1250 | if (!PL_in_eval && PL_minus_p) { | |
1251 | sv_catpvs(linestr, | |
1252 | /*{*/";}continue{print or die qq(-p destination: $!\\n);}"); | |
1253 | PL_minus_n = PL_minus_p = 0; | |
1254 | } else if (!PL_in_eval && PL_minus_n) { | |
1255 | sv_catpvs(linestr, /*{*/";}"); | |
1256 | PL_minus_n = 0; | |
1257 | } else | |
1258 | sv_catpvs(linestr, ";"); | |
1259 | got_some = 1; | |
1260 | } | |
1261 | buf = SvPVX(linestr); | |
1262 | new_bufend_pos = SvCUR(linestr); | |
1263 | PL_parser->bufend = buf + new_bufend_pos; | |
1264 | PL_parser->bufptr = buf + bufptr_pos; | |
1265 | PL_parser->oldbufptr = buf + oldbufptr_pos; | |
1266 | PL_parser->oldoldbufptr = buf + oldoldbufptr_pos; | |
1267 | PL_parser->linestart = buf + linestart_pos; | |
1268 | if (PL_parser->last_uni) | |
1269 | PL_parser->last_uni = buf + last_uni_pos; | |
1270 | if (PL_parser->last_lop) | |
1271 | PL_parser->last_lop = buf + last_lop_pos; | |
17cc9359 | 1272 | if (got_some_for_debugger && (PERLDB_LINE || PERLDB_SAVESRC) && |
f0e67a1d Z |
1273 | PL_curstash != PL_debstash) { |
1274 | /* debugger active and we're not compiling the debugger code, | |
1275 | * so store the line into the debugger's array of lines | |
1276 | */ | |
1277 | update_debugger_info(NULL, buf+old_bufend_pos, | |
1278 | new_bufend_pos-old_bufend_pos); | |
1279 | } | |
1280 | return got_some; | |
1281 | } | |
1282 | ||
1283 | /* | |
1284 | =for apidoc Amx|I32|lex_peek_unichar|U32 flags | |
1285 | ||
1286 | Looks ahead one (Unicode) character in the text currently being lexed. | |
1287 | Returns the codepoint (unsigned integer value) of the next character, | |
1288 | or -1 if lexing has reached the end of the input text. To consume the | |
1289 | peeked character, use L</lex_read_unichar>. | |
1290 | ||
1291 | If the next character is in (or extends into) the next chunk of input | |
1292 | text, the next chunk will be read in. Normally the current chunk will be | |
1293 | discarded at the same time, but if I<flags> includes C<LEX_KEEP_PREVIOUS> | |
1294 | then the current chunk will not be discarded. | |
1295 | ||
1296 | If the input is being interpreted as UTF-8 and a UTF-8 encoding error | |
1297 | is encountered, an exception is generated. | |
1298 | ||
1299 | =cut | |
1300 | */ | |
1301 | ||
1302 | I32 | |
1303 | Perl_lex_peek_unichar(pTHX_ U32 flags) | |
1304 | { | |
1305 | char *s, *bufend; | |
1306 | if (flags & ~(LEX_KEEP_PREVIOUS)) | |
1307 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_peek_unichar"); | |
1308 | s = PL_parser->bufptr; | |
1309 | bufend = PL_parser->bufend; | |
1310 | if (UTF) { | |
1311 | U8 head; | |
1312 | I32 unichar; | |
1313 | STRLEN len, retlen; | |
1314 | if (s == bufend) { | |
1315 | if (!lex_next_chunk(flags)) | |
1316 | return -1; | |
1317 | s = PL_parser->bufptr; | |
1318 | bufend = PL_parser->bufend; | |
1319 | } | |
1320 | head = (U8)*s; | |
1321 | if (!(head & 0x80)) | |
1322 | return head; | |
1323 | if (head & 0x40) { | |
1324 | len = PL_utf8skip[head]; | |
1325 | while ((STRLEN)(bufend-s) < len) { | |
1326 | if (!lex_next_chunk(flags | LEX_KEEP_PREVIOUS)) | |
1327 | break; | |
1328 | s = PL_parser->bufptr; | |
1329 | bufend = PL_parser->bufend; | |
1330 | } | |
1331 | } | |
1332 | unichar = utf8n_to_uvuni((U8*)s, bufend-s, &retlen, UTF8_CHECK_ONLY); | |
1333 | if (retlen == (STRLEN)-1) { | |
1334 | /* malformed UTF-8 */ | |
1335 | ENTER; | |
1336 | SAVESPTR(PL_warnhook); | |
1337 | PL_warnhook = PERL_WARNHOOK_FATAL; | |
1338 | utf8n_to_uvuni((U8*)s, bufend-s, NULL, 0); | |
1339 | LEAVE; | |
1340 | } | |
1341 | return unichar; | |
1342 | } else { | |
1343 | if (s == bufend) { | |
1344 | if (!lex_next_chunk(flags)) | |
1345 | return -1; | |
1346 | s = PL_parser->bufptr; | |
1347 | } | |
1348 | return (U8)*s; | |
1349 | } | |
1350 | } | |
1351 | ||
1352 | /* | |
1353 | =for apidoc Amx|I32|lex_read_unichar|U32 flags | |
1354 | ||
1355 | Reads the next (Unicode) character in the text currently being lexed. | |
1356 | Returns the codepoint (unsigned integer value) of the character read, | |
1357 | and moves L</PL_parser-E<gt>bufptr> past the character, or returns -1 | |
1358 | if lexing has reached the end of the input text. To non-destructively | |
1359 | examine the next character, use L</lex_peek_unichar> instead. | |
1360 | ||
1361 | If the next character is in (or extends into) the next chunk of input | |
1362 | text, the next chunk will be read in. Normally the current chunk will be | |
1363 | discarded at the same time, but if I<flags> includes C<LEX_KEEP_PREVIOUS> | |
1364 | then the current chunk will not be discarded. | |
1365 | ||
1366 | If the input is being interpreted as UTF-8 and a UTF-8 encoding error | |
1367 | is encountered, an exception is generated. | |
1368 | ||
1369 | =cut | |
1370 | */ | |
1371 | ||
1372 | I32 | |
1373 | Perl_lex_read_unichar(pTHX_ U32 flags) | |
1374 | { | |
1375 | I32 c; | |
1376 | if (flags & ~(LEX_KEEP_PREVIOUS)) | |
1377 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_read_unichar"); | |
1378 | c = lex_peek_unichar(flags); | |
1379 | if (c != -1) { | |
1380 | if (c == '\n') | |
1381 | CopLINE_inc(PL_curcop); | |
1382 | PL_parser->bufptr += UTF8SKIP(PL_parser->bufptr); | |
1383 | } | |
1384 | return c; | |
1385 | } | |
1386 | ||
1387 | /* | |
1388 | =for apidoc Amx|void|lex_read_space|U32 flags | |
1389 | ||
1390 | Reads optional spaces, in Perl style, in the text currently being | |
1391 | lexed. The spaces may include ordinary whitespace characters and | |
1392 | Perl-style comments. C<#line> directives are processed if encountered. | |
1393 | L</PL_parser-E<gt>bufptr> is moved past the spaces, so that it points | |
1394 | at a non-space character (or the end of the input text). | |
1395 | ||
1396 | If spaces extend into the next chunk of input text, the next chunk will | |
1397 | be read in. Normally the current chunk will be discarded at the same | |
1398 | time, but if I<flags> includes C<LEX_KEEP_PREVIOUS> then the current | |
1399 | chunk will not be discarded. | |
1400 | ||
1401 | =cut | |
1402 | */ | |
1403 | ||
1404 | void | |
1405 | Perl_lex_read_space(pTHX_ U32 flags) | |
1406 | { | |
1407 | char *s, *bufend; | |
1408 | bool need_incline = 0; | |
1409 | if (flags & ~(LEX_KEEP_PREVIOUS)) | |
1410 | Perl_croak(aTHX_ "Lexing code internal error (%s)", "lex_read_space"); | |
1411 | #ifdef PERL_MAD | |
1412 | if (PL_skipwhite) { | |
1413 | sv_free(PL_skipwhite); | |
1414 | PL_skipwhite = NULL; | |
1415 | } | |
1416 | if (PL_madskills) | |
1417 | PL_skipwhite = newSVpvs(""); | |
1418 | #endif /* PERL_MAD */ | |
1419 | s = PL_parser->bufptr; | |
1420 | bufend = PL_parser->bufend; | |
1421 | while (1) { | |
1422 | char c = *s; | |
1423 | if (c == '#') { | |
1424 | do { | |
1425 | c = *++s; | |
1426 | } while (!(c == '\n' || (c == 0 && s == bufend))); | |
1427 | } else if (c == '\n') { | |
1428 | s++; | |
1429 | PL_parser->linestart = s; | |
1430 | if (s == bufend) | |
1431 | need_incline = 1; | |
1432 | else | |
1433 | incline(s); | |
1434 | } else if (isSPACE(c)) { | |
1435 | s++; | |
1436 | } else if (c == 0 && s == bufend) { | |
1437 | bool got_more; | |
1438 | #ifdef PERL_MAD | |
1439 | if (PL_madskills) | |
1440 | sv_catpvn(PL_skipwhite, PL_parser->bufptr, s-PL_parser->bufptr); | |
1441 | #endif /* PERL_MAD */ | |
1442 | PL_parser->bufptr = s; | |
1443 | CopLINE_inc(PL_curcop); | |
1444 | got_more = lex_next_chunk(flags); | |
1445 | CopLINE_dec(PL_curcop); | |
1446 | s = PL_parser->bufptr; | |
1447 | bufend = PL_parser->bufend; | |
1448 | if (!got_more) | |
1449 | break; | |
1450 | if (need_incline && PL_parser->rsfp) { | |
1451 | incline(s); | |
1452 | need_incline = 0; | |
1453 | } | |
1454 | } else { | |
1455 | break; | |
1456 | } | |
1457 | } | |
1458 | #ifdef PERL_MAD | |
1459 | if (PL_madskills) | |
1460 | sv_catpvn(PL_skipwhite, PL_parser->bufptr, s-PL_parser->bufptr); | |
1461 | #endif /* PERL_MAD */ | |
1462 | PL_parser->bufptr = s; | |
1463 | } | |
1464 | ||
1465 | /* | |
ffb4593c NT |
1466 | * S_incline |
1467 | * This subroutine has nothing to do with tilting, whether at windmills | |
1468 | * or pinball tables. Its name is short for "increment line". It | |
57843af0 | 1469 | * increments the current line number in CopLINE(PL_curcop) and checks |
ffb4593c | 1470 | * to see whether the line starts with a comment of the form |
9cbb5ea2 GS |
1471 | * # line 500 "foo.pm" |
1472 | * If so, it sets the current line number and file to the values in the comment. | |
ffb4593c NT |
1473 | */ |
1474 | ||
76e3520e | 1475 | STATIC void |
d9095cec | 1476 | S_incline(pTHX_ const char *s) |
463ee0b2 | 1477 | { |
97aff369 | 1478 | dVAR; |
d9095cec NC |
1479 | const char *t; |
1480 | const char *n; | |
1481 | const char *e; | |
463ee0b2 | 1482 | |
7918f24d NC |
1483 | PERL_ARGS_ASSERT_INCLINE; |
1484 | ||
57843af0 | 1485 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
1486 | if (*s++ != '#') |
1487 | return; | |
d4c19fe8 AL |
1488 | while (SPACE_OR_TAB(*s)) |
1489 | s++; | |
73659bf1 GS |
1490 | if (strnEQ(s, "line", 4)) |
1491 | s += 4; | |
1492 | else | |
1493 | return; | |
084592ab | 1494 | if (SPACE_OR_TAB(*s)) |
73659bf1 | 1495 | s++; |
4e553d73 | 1496 | else |
73659bf1 | 1497 | return; |
d4c19fe8 AL |
1498 | while (SPACE_OR_TAB(*s)) |
1499 | s++; | |
463ee0b2 LW |
1500 | if (!isDIGIT(*s)) |
1501 | return; | |
d4c19fe8 | 1502 | |
463ee0b2 LW |
1503 | n = s; |
1504 | while (isDIGIT(*s)) | |
1505 | s++; | |
07714eb4 | 1506 | if (!SPACE_OR_TAB(*s) && *s != '\r' && *s != '\n' && *s != '\0') |
26b6dc3f | 1507 | return; |
bf4acbe4 | 1508 | while (SPACE_OR_TAB(*s)) |
463ee0b2 | 1509 | s++; |
73659bf1 | 1510 | if (*s == '"' && (t = strchr(s+1, '"'))) { |
463ee0b2 | 1511 | s++; |
73659bf1 GS |
1512 | e = t + 1; |
1513 | } | |
463ee0b2 | 1514 | else { |
c35e046a AL |
1515 | t = s; |
1516 | while (!isSPACE(*t)) | |
1517 | t++; | |
73659bf1 | 1518 | e = t; |
463ee0b2 | 1519 | } |
bf4acbe4 | 1520 | while (SPACE_OR_TAB(*e) || *e == '\r' || *e == '\f') |
73659bf1 GS |
1521 | e++; |
1522 | if (*e != '\n' && *e != '\0') | |
1523 | return; /* false alarm */ | |
1524 | ||
f4dd75d9 | 1525 | if (t - s > 0) { |
d9095cec | 1526 | const STRLEN len = t - s; |
8a5ee598 | 1527 | #ifndef USE_ITHREADS |
19bad673 NC |
1528 | SV *const temp_sv = CopFILESV(PL_curcop); |
1529 | const char *cf; | |
1530 | STRLEN tmplen; | |
1531 | ||
1532 | if (temp_sv) { | |
1533 | cf = SvPVX(temp_sv); | |
1534 | tmplen = SvCUR(temp_sv); | |
1535 | } else { | |
1536 | cf = NULL; | |
1537 | tmplen = 0; | |
1538 | } | |
1539 | ||
42d9b98d | 1540 | if (tmplen > 7 && strnEQ(cf, "(eval ", 6)) { |
e66cf94c RGS |
1541 | /* must copy *{"::_<(eval N)[oldfilename:L]"} |
1542 | * to *{"::_<newfilename"} */ | |
44867030 NC |
1543 | /* However, the long form of evals is only turned on by the |
1544 | debugger - usually they're "(eval %lu)" */ | |
1545 | char smallbuf[128]; | |
1546 | char *tmpbuf; | |
1547 | GV **gvp; | |
d9095cec | 1548 | STRLEN tmplen2 = len; |
798b63bc | 1549 | if (tmplen + 2 <= sizeof smallbuf) |
e66cf94c RGS |
1550 | tmpbuf = smallbuf; |
1551 | else | |
2ae0db35 | 1552 | Newx(tmpbuf, tmplen + 2, char); |
44867030 NC |
1553 | tmpbuf[0] = '_'; |
1554 | tmpbuf[1] = '<'; | |
2ae0db35 | 1555 | memcpy(tmpbuf + 2, cf, tmplen); |
44867030 | 1556 | tmplen += 2; |
8a5ee598 RGS |
1557 | gvp = (GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, FALSE); |
1558 | if (gvp) { | |
44867030 NC |
1559 | char *tmpbuf2; |
1560 | GV *gv2; | |
1561 | ||
1562 | if (tmplen2 + 2 <= sizeof smallbuf) | |
1563 | tmpbuf2 = smallbuf; | |
1564 | else | |
1565 | Newx(tmpbuf2, tmplen2 + 2, char); | |
1566 | ||
1567 | if (tmpbuf2 != smallbuf || tmpbuf != smallbuf) { | |
1568 | /* Either they malloc'd it, or we malloc'd it, | |
1569 | so no prefix is present in ours. */ | |
1570 | tmpbuf2[0] = '_'; | |
1571 | tmpbuf2[1] = '<'; | |
1572 | } | |
1573 | ||
1574 | memcpy(tmpbuf2 + 2, s, tmplen2); | |
1575 | tmplen2 += 2; | |
1576 | ||
8a5ee598 | 1577 | gv2 = *(GV**)hv_fetch(PL_defstash, tmpbuf2, tmplen2, TRUE); |
e5527e4b | 1578 | if (!isGV(gv2)) { |
8a5ee598 | 1579 | gv_init(gv2, PL_defstash, tmpbuf2, tmplen2, FALSE); |
e5527e4b RGS |
1580 | /* adjust ${"::_<newfilename"} to store the new file name */ |
1581 | GvSV(gv2) = newSVpvn(tmpbuf2 + 2, tmplen2 - 2); | |
3cb1dbc6 NC |
1582 | GvHV(gv2) = MUTABLE_HV(SvREFCNT_inc(GvHV(*gvp))); |
1583 | GvAV(gv2) = MUTABLE_AV(SvREFCNT_inc(GvAV(*gvp))); | |
e5527e4b | 1584 | } |
44867030 NC |
1585 | |
1586 | if (tmpbuf2 != smallbuf) Safefree(tmpbuf2); | |
8a5ee598 | 1587 | } |
e66cf94c | 1588 | if (tmpbuf != smallbuf) Safefree(tmpbuf); |
e66cf94c | 1589 | } |
8a5ee598 | 1590 | #endif |
05ec9bb3 | 1591 | CopFILE_free(PL_curcop); |
d9095cec | 1592 | CopFILE_setn(PL_curcop, s, len); |
f4dd75d9 | 1593 | } |
57843af0 | 1594 | CopLINE_set(PL_curcop, atoi(n)-1); |
463ee0b2 LW |
1595 | } |
1596 | ||
29595ff2 | 1597 | #ifdef PERL_MAD |
cd81e915 | 1598 | /* skip space before PL_thistoken */ |
29595ff2 NC |
1599 | |
1600 | STATIC char * | |
1601 | S_skipspace0(pTHX_ register char *s) | |
1602 | { | |
7918f24d NC |
1603 | PERL_ARGS_ASSERT_SKIPSPACE0; |
1604 | ||
29595ff2 NC |
1605 | s = skipspace(s); |
1606 | if (!PL_madskills) | |
1607 | return s; | |
cd81e915 NC |
1608 | if (PL_skipwhite) { |
1609 | if (!PL_thiswhite) | |
6b29d1f5 | 1610 | PL_thiswhite = newSVpvs(""); |
cd81e915 NC |
1611 | sv_catsv(PL_thiswhite, PL_skipwhite); |
1612 | sv_free(PL_skipwhite); | |
1613 | PL_skipwhite = 0; | |
1614 | } | |
1615 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
29595ff2 NC |
1616 | return s; |
1617 | } | |
1618 | ||
cd81e915 | 1619 | /* skip space after PL_thistoken */ |
29595ff2 NC |
1620 | |
1621 | STATIC char * | |
1622 | S_skipspace1(pTHX_ register char *s) | |
1623 | { | |
d4c19fe8 | 1624 | const char *start = s; |
29595ff2 NC |
1625 | I32 startoff = start - SvPVX(PL_linestr); |
1626 | ||
7918f24d NC |
1627 | PERL_ARGS_ASSERT_SKIPSPACE1; |
1628 | ||
29595ff2 NC |
1629 | s = skipspace(s); |
1630 | if (!PL_madskills) | |
1631 | return s; | |
1632 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 1633 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 1634 | const char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
1635 | PL_thistoken = newSVpvn(tstart, start - tstart); |
1636 | } | |
1637 | PL_realtokenstart = -1; | |
1638 | if (PL_skipwhite) { | |
1639 | if (!PL_nextwhite) | |
6b29d1f5 | 1640 | PL_nextwhite = newSVpvs(""); |
cd81e915 NC |
1641 | sv_catsv(PL_nextwhite, PL_skipwhite); |
1642 | sv_free(PL_skipwhite); | |
1643 | PL_skipwhite = 0; | |
29595ff2 NC |
1644 | } |
1645 | return s; | |
1646 | } | |
1647 | ||
1648 | STATIC char * | |
1649 | S_skipspace2(pTHX_ register char *s, SV **svp) | |
1650 | { | |
c35e046a AL |
1651 | char *start; |
1652 | const I32 bufptroff = PL_bufptr - SvPVX(PL_linestr); | |
1653 | const I32 startoff = s - SvPVX(PL_linestr); | |
1654 | ||
7918f24d NC |
1655 | PERL_ARGS_ASSERT_SKIPSPACE2; |
1656 | ||
29595ff2 NC |
1657 | s = skipspace(s); |
1658 | PL_bufptr = SvPVX(PL_linestr) + bufptroff; | |
1659 | if (!PL_madskills || !svp) | |
1660 | return s; | |
1661 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 1662 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 1663 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
1664 | PL_thistoken = newSVpvn(tstart, start - tstart); |
1665 | PL_realtokenstart = -1; | |
29595ff2 | 1666 | } |
cd81e915 | 1667 | if (PL_skipwhite) { |
29595ff2 | 1668 | if (!*svp) |
6b29d1f5 | 1669 | *svp = newSVpvs(""); |
cd81e915 NC |
1670 | sv_setsv(*svp, PL_skipwhite); |
1671 | sv_free(PL_skipwhite); | |
1672 | PL_skipwhite = 0; | |
29595ff2 NC |
1673 | } |
1674 | ||
1675 | return s; | |
1676 | } | |
1677 | #endif | |
1678 | ||
80a702cd | 1679 | STATIC void |
15f169a1 | 1680 | S_update_debugger_info(pTHX_ SV *orig_sv, const char *const buf, STRLEN len) |
80a702cd RGS |
1681 | { |
1682 | AV *av = CopFILEAVx(PL_curcop); | |
1683 | if (av) { | |
b9f83d2f | 1684 | SV * const sv = newSV_type(SVt_PVMG); |
5fa550fb NC |
1685 | if (orig_sv) |
1686 | sv_setsv(sv, orig_sv); | |
1687 | else | |
1688 | sv_setpvn(sv, buf, len); | |
80a702cd RGS |
1689 | (void)SvIOK_on(sv); |
1690 | SvIV_set(sv, 0); | |
1691 | av_store(av, (I32)CopLINE(PL_curcop), sv); | |
1692 | } | |
1693 | } | |
1694 | ||
ffb4593c NT |
1695 | /* |
1696 | * S_skipspace | |
1697 | * Called to gobble the appropriate amount and type of whitespace. | |
1698 | * Skips comments as well. | |
1699 | */ | |
1700 | ||
76e3520e | 1701 | STATIC char * |
cea2e8a9 | 1702 | S_skipspace(pTHX_ register char *s) |
a687059c | 1703 | { |
5db06880 | 1704 | #ifdef PERL_MAD |
f0e67a1d Z |
1705 | char *start = s; |
1706 | #endif /* PERL_MAD */ | |
7918f24d | 1707 | PERL_ARGS_ASSERT_SKIPSPACE; |
f0e67a1d | 1708 | #ifdef PERL_MAD |
cd81e915 NC |
1709 | if (PL_skipwhite) { |
1710 | sv_free(PL_skipwhite); | |
f0e67a1d | 1711 | PL_skipwhite = NULL; |
5db06880 | 1712 | } |
f0e67a1d | 1713 | #endif /* PERL_MAD */ |
3280af22 | 1714 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
bf4acbe4 | 1715 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
463ee0b2 | 1716 | s++; |
f0e67a1d Z |
1717 | } else if (PL_sublex_info.sub_inwhat || PL_lex_state == LEX_FORMLINE) { |
1718 | while (isSPACE(*s) && *s != '\n') | |
1719 | s++; | |
1720 | if (*s == '#') { | |
1721 | do { | |
463ee0b2 | 1722 | s++; |
f0e67a1d | 1723 | } while (s != PL_bufend && *s != '\n'); |
463ee0b2 | 1724 | } |
f0e67a1d Z |
1725 | if (*s == '\n') |
1726 | s++; | |
1727 | } else { | |
1728 | STRLEN bufptr_pos = PL_bufptr - SvPVX(PL_linestr); | |
1729 | PL_bufptr = s; | |
1730 | lex_read_space(LEX_KEEP_PREVIOUS); | |
3280af22 | 1731 | s = PL_bufptr; |
f0e67a1d Z |
1732 | PL_bufptr = SvPVX(PL_linestr) + bufptr_pos; |
1733 | if (PL_linestart > PL_bufptr) | |
1734 | PL_bufptr = PL_linestart; | |
1735 | return s; | |
463ee0b2 | 1736 | } |
5db06880 | 1737 | #ifdef PERL_MAD |
f0e67a1d Z |
1738 | if (PL_madskills) |
1739 | PL_skipwhite = newSVpvn(start, s-start); | |
1740 | #endif /* PERL_MAD */ | |
5db06880 | 1741 | return s; |
a687059c | 1742 | } |
378cc40b | 1743 | |
ffb4593c NT |
1744 | /* |
1745 | * S_check_uni | |
1746 | * Check the unary operators to ensure there's no ambiguity in how they're | |
1747 | * used. An ambiguous piece of code would be: | |
1748 | * rand + 5 | |
1749 | * This doesn't mean rand() + 5. Because rand() is a unary operator, | |
1750 | * the +5 is its argument. | |
1751 | */ | |
1752 | ||
76e3520e | 1753 | STATIC void |
cea2e8a9 | 1754 | S_check_uni(pTHX) |
ba106d47 | 1755 | { |
97aff369 | 1756 | dVAR; |
d4c19fe8 AL |
1757 | const char *s; |
1758 | const char *t; | |
2f3197b3 | 1759 | |
3280af22 | 1760 | if (PL_oldoldbufptr != PL_last_uni) |
2f3197b3 | 1761 | return; |
3280af22 NIS |
1762 | while (isSPACE(*PL_last_uni)) |
1763 | PL_last_uni++; | |
c35e046a AL |
1764 | s = PL_last_uni; |
1765 | while (isALNUM_lazy_if(s,UTF) || *s == '-') | |
1766 | s++; | |
3280af22 | 1767 | if ((t = strchr(s, '(')) && t < PL_bufptr) |
a0d0e21e | 1768 | return; |
6136c704 | 1769 | |
9b387841 NC |
1770 | Perl_ck_warner_d(aTHX_ packWARN(WARN_AMBIGUOUS), |
1771 | "Warning: Use of \"%.*s\" without parentheses is ambiguous", | |
1772 | (int)(s - PL_last_uni), PL_last_uni); | |
2f3197b3 LW |
1773 | } |
1774 | ||
ffb4593c NT |
1775 | /* |
1776 | * LOP : macro to build a list operator. Its behaviour has been replaced | |
1777 | * with a subroutine, S_lop() for which LOP is just another name. | |
1778 | */ | |
1779 | ||
a0d0e21e LW |
1780 | #define LOP(f,x) return lop(f,x,s) |
1781 | ||
ffb4593c NT |
1782 | /* |
1783 | * S_lop | |
1784 | * Build a list operator (or something that might be one). The rules: | |
1785 | * - if we have a next token, then it's a list operator [why?] | |
1786 | * - if the next thing is an opening paren, then it's a function | |
1787 | * - else it's a list operator | |
1788 | */ | |
1789 | ||
76e3520e | 1790 | STATIC I32 |
a0be28da | 1791 | S_lop(pTHX_ I32 f, int x, char *s) |
ffed7fef | 1792 | { |
97aff369 | 1793 | dVAR; |
7918f24d NC |
1794 | |
1795 | PERL_ARGS_ASSERT_LOP; | |
1796 | ||
6154021b | 1797 | pl_yylval.ival = f; |
35c8bce7 | 1798 | CLINE; |
3280af22 NIS |
1799 | PL_expect = x; |
1800 | PL_bufptr = s; | |
1801 | PL_last_lop = PL_oldbufptr; | |
eb160463 | 1802 | PL_last_lop_op = (OPCODE)f; |
5db06880 NC |
1803 | #ifdef PERL_MAD |
1804 | if (PL_lasttoke) | |
1805 | return REPORT(LSTOP); | |
1806 | #else | |
3280af22 | 1807 | if (PL_nexttoke) |
bbf60fe6 | 1808 | return REPORT(LSTOP); |
5db06880 | 1809 | #endif |
79072805 | 1810 | if (*s == '(') |
bbf60fe6 | 1811 | return REPORT(FUNC); |
29595ff2 | 1812 | s = PEEKSPACE(s); |
79072805 | 1813 | if (*s == '(') |
bbf60fe6 | 1814 | return REPORT(FUNC); |
79072805 | 1815 | else |
bbf60fe6 | 1816 | return REPORT(LSTOP); |
79072805 LW |
1817 | } |
1818 | ||
5db06880 NC |
1819 | #ifdef PERL_MAD |
1820 | /* | |
1821 | * S_start_force | |
1822 | * Sets up for an eventual force_next(). start_force(0) basically does | |
1823 | * an unshift, while start_force(-1) does a push. yylex removes items | |
1824 | * on the "pop" end. | |
1825 | */ | |
1826 | ||
1827 | STATIC void | |
1828 | S_start_force(pTHX_ int where) | |
1829 | { | |
1830 | int i; | |
1831 | ||
cd81e915 | 1832 | if (where < 0) /* so people can duplicate start_force(PL_curforce) */ |
5db06880 | 1833 | where = PL_lasttoke; |
cd81e915 NC |
1834 | assert(PL_curforce < 0 || PL_curforce == where); |
1835 | if (PL_curforce != where) { | |
5db06880 NC |
1836 | for (i = PL_lasttoke; i > where; --i) { |
1837 | PL_nexttoke[i] = PL_nexttoke[i-1]; | |
1838 | } | |
1839 | PL_lasttoke++; | |
1840 | } | |
cd81e915 | 1841 | if (PL_curforce < 0) /* in case of duplicate start_force() */ |
5db06880 | 1842 | Zero(&PL_nexttoke[where], 1, NEXTTOKE); |
cd81e915 NC |
1843 | PL_curforce = where; |
1844 | if (PL_nextwhite) { | |
5db06880 | 1845 | if (PL_madskills) |
6b29d1f5 | 1846 | curmad('^', newSVpvs("")); |
cd81e915 | 1847 | CURMAD('_', PL_nextwhite); |
5db06880 NC |
1848 | } |
1849 | } | |
1850 | ||
1851 | STATIC void | |
1852 | S_curmad(pTHX_ char slot, SV *sv) | |
1853 | { | |
1854 | MADPROP **where; | |
1855 | ||
1856 | if (!sv) | |
1857 | return; | |
cd81e915 NC |
1858 | if (PL_curforce < 0) |
1859 | where = &PL_thismad; | |
5db06880 | 1860 | else |
cd81e915 | 1861 | where = &PL_nexttoke[PL_curforce].next_mad; |
5db06880 | 1862 | |
cd81e915 | 1863 | if (PL_faketokens) |
76f68e9b | 1864 | sv_setpvs(sv, ""); |
5db06880 NC |
1865 | else { |
1866 | if (!IN_BYTES) { | |
1867 | if (UTF && is_utf8_string((U8*)SvPVX(sv), SvCUR(sv))) | |
1868 | SvUTF8_on(sv); | |
1869 | else if (PL_encoding) { | |
1870 | sv_recode_to_utf8(sv, PL_encoding); | |
1871 | } | |
1872 | } | |
1873 | } | |
1874 | ||
1875 | /* keep a slot open for the head of the list? */ | |
1876 | if (slot != '_' && *where && (*where)->mad_key == '^') { | |
1877 | (*where)->mad_key = slot; | |
daba3364 | 1878 | sv_free(MUTABLE_SV(((*where)->mad_val))); |
5db06880 NC |
1879 | (*where)->mad_val = (void*)sv; |
1880 | } | |
1881 | else | |
1882 | addmad(newMADsv(slot, sv), where, 0); | |
1883 | } | |
1884 | #else | |
b3f24c00 MHM |
1885 | # define start_force(where) NOOP |
1886 | # define curmad(slot, sv) NOOP | |
5db06880 NC |
1887 | #endif |
1888 | ||
ffb4593c NT |
1889 | /* |
1890 | * S_force_next | |
9cbb5ea2 | 1891 | * When the lexer realizes it knows the next token (for instance, |
ffb4593c | 1892 | * it is reordering tokens for the parser) then it can call S_force_next |
9cbb5ea2 | 1893 | * to know what token to return the next time the lexer is called. Caller |
5db06880 NC |
1894 | * will need to set PL_nextval[] (or PL_nexttoke[].next_val with PERL_MAD), |
1895 | * and possibly PL_expect to ensure the lexer handles the token correctly. | |
ffb4593c NT |
1896 | */ |
1897 | ||
4e553d73 | 1898 | STATIC void |
cea2e8a9 | 1899 | S_force_next(pTHX_ I32 type) |
79072805 | 1900 | { |
97aff369 | 1901 | dVAR; |
704d4215 GG |
1902 | #ifdef DEBUGGING |
1903 | if (DEBUG_T_TEST) { | |
1904 | PerlIO_printf(Perl_debug_log, "### forced token:\n"); | |
f05d7009 | 1905 | tokereport(type, &NEXTVAL_NEXTTOKE); |
704d4215 GG |
1906 | } |
1907 | #endif | |
5db06880 | 1908 | #ifdef PERL_MAD |
cd81e915 | 1909 | if (PL_curforce < 0) |
5db06880 | 1910 | start_force(PL_lasttoke); |
cd81e915 | 1911 | PL_nexttoke[PL_curforce].next_type = type; |
5db06880 NC |
1912 | if (PL_lex_state != LEX_KNOWNEXT) |
1913 | PL_lex_defer = PL_lex_state; | |
1914 | PL_lex_state = LEX_KNOWNEXT; | |
1915 | PL_lex_expect = PL_expect; | |
cd81e915 | 1916 | PL_curforce = -1; |
5db06880 | 1917 | #else |
3280af22 NIS |
1918 | PL_nexttype[PL_nexttoke] = type; |
1919 | PL_nexttoke++; | |
1920 | if (PL_lex_state != LEX_KNOWNEXT) { | |
1921 | PL_lex_defer = PL_lex_state; | |
1922 | PL_lex_expect = PL_expect; | |
1923 | PL_lex_state = LEX_KNOWNEXT; | |
79072805 | 1924 | } |
5db06880 | 1925 | #endif |
79072805 LW |
1926 | } |
1927 | ||
d0a148a6 | 1928 | STATIC SV * |
15f169a1 | 1929 | S_newSV_maybe_utf8(pTHX_ const char *const start, STRLEN len) |
d0a148a6 | 1930 | { |
97aff369 | 1931 | dVAR; |
740cce10 | 1932 | SV * const sv = newSVpvn_utf8(start, len, |
eaf7a4d2 CS |
1933 | !IN_BYTES |
1934 | && UTF | |
1935 | && !is_ascii_string((const U8*)start, len) | |
740cce10 | 1936 | && is_utf8_string((const U8*)start, len)); |
d0a148a6 NC |
1937 | return sv; |
1938 | } | |
1939 | ||
ffb4593c NT |
1940 | /* |
1941 | * S_force_word | |
1942 | * When the lexer knows the next thing is a word (for instance, it has | |
1943 | * just seen -> and it knows that the next char is a word char, then | |
02b34bbe DM |
1944 | * it calls S_force_word to stick the next word into the PL_nexttoke/val |
1945 | * lookahead. | |
ffb4593c NT |
1946 | * |
1947 | * Arguments: | |
b1b65b59 | 1948 | * char *start : buffer position (must be within PL_linestr) |
02b34bbe | 1949 | * int token : PL_next* will be this type of bare word (e.g., METHOD,WORD) |
ffb4593c NT |
1950 | * int check_keyword : if true, Perl checks to make sure the word isn't |
1951 | * a keyword (do this if the word is a label, e.g. goto FOO) | |
1952 | * int allow_pack : if true, : characters will also be allowed (require, | |
1953 | * use, etc. do this) | |
9cbb5ea2 | 1954 | * int allow_initial_tick : used by the "sub" lexer only. |
ffb4593c NT |
1955 | */ |
1956 | ||
76e3520e | 1957 | STATIC char * |
cea2e8a9 | 1958 | S_force_word(pTHX_ register char *start, int token, int check_keyword, int allow_pack, int allow_initial_tick) |
79072805 | 1959 | { |
97aff369 | 1960 | dVAR; |
463ee0b2 LW |
1961 | register char *s; |
1962 | STRLEN len; | |
4e553d73 | 1963 | |
7918f24d NC |
1964 | PERL_ARGS_ASSERT_FORCE_WORD; |
1965 | ||
29595ff2 | 1966 | start = SKIPSPACE1(start); |
463ee0b2 | 1967 | s = start; |
7e2040f0 | 1968 | if (isIDFIRST_lazy_if(s,UTF) || |
a0d0e21e | 1969 | (allow_pack && *s == ':') || |
15f0808c | 1970 | (allow_initial_tick && *s == '\'') ) |
a0d0e21e | 1971 | { |
3280af22 | 1972 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, allow_pack, &len); |
5458a98a | 1973 | if (check_keyword && keyword(PL_tokenbuf, len, 0)) |
463ee0b2 | 1974 | return start; |
cd81e915 | 1975 | start_force(PL_curforce); |
5db06880 NC |
1976 | if (PL_madskills) |
1977 | curmad('X', newSVpvn(start,s-start)); | |
463ee0b2 | 1978 | if (token == METHOD) { |
29595ff2 | 1979 | s = SKIPSPACE1(s); |
463ee0b2 | 1980 | if (*s == '(') |
3280af22 | 1981 | PL_expect = XTERM; |
463ee0b2 | 1982 | else { |
3280af22 | 1983 | PL_expect = XOPERATOR; |
463ee0b2 | 1984 | } |
79072805 | 1985 | } |
e74e6b3d | 1986 | if (PL_madskills) |
63575281 | 1987 | curmad('g', newSVpvs( "forced" )); |
9ded7720 | 1988 | NEXTVAL_NEXTTOKE.opval |
d0a148a6 NC |
1989 | = (OP*)newSVOP(OP_CONST,0, |
1990 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
9ded7720 | 1991 | NEXTVAL_NEXTTOKE.opval->op_private |= OPpCONST_BARE; |
79072805 LW |
1992 | force_next(token); |
1993 | } | |
1994 | return s; | |
1995 | } | |
1996 | ||
ffb4593c NT |
1997 | /* |
1998 | * S_force_ident | |
9cbb5ea2 | 1999 | * Called when the lexer wants $foo *foo &foo etc, but the program |
ffb4593c NT |
2000 | * text only contains the "foo" portion. The first argument is a pointer |
2001 | * to the "foo", and the second argument is the type symbol to prefix. | |
2002 | * Forces the next token to be a "WORD". | |
9cbb5ea2 | 2003 | * Creates the symbol if it didn't already exist (via gv_fetchpv()). |
ffb4593c NT |
2004 | */ |
2005 | ||
76e3520e | 2006 | STATIC void |
bfed75c6 | 2007 | S_force_ident(pTHX_ register const char *s, int kind) |
79072805 | 2008 | { |
97aff369 | 2009 | dVAR; |
7918f24d NC |
2010 | |
2011 | PERL_ARGS_ASSERT_FORCE_IDENT; | |
2012 | ||
c35e046a | 2013 | if (*s) { |
90e5519e NC |
2014 | const STRLEN len = strlen(s); |
2015 | OP* const o = (OP*)newSVOP(OP_CONST, 0, newSVpvn(s, len)); | |
cd81e915 | 2016 | start_force(PL_curforce); |
9ded7720 | 2017 | NEXTVAL_NEXTTOKE.opval = o; |
79072805 | 2018 | force_next(WORD); |
748a9306 | 2019 | if (kind) { |
11343788 | 2020 | o->op_private = OPpCONST_ENTERED; |
55497cff | 2021 | /* XXX see note in pp_entereval() for why we forgo typo |
2022 | warnings if the symbol must be introduced in an eval. | |
2023 | GSAR 96-10-12 */ | |
90e5519e NC |
2024 | gv_fetchpvn_flags(s, len, |
2025 | PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) | |
2026 | : GV_ADD, | |
2027 | kind == '$' ? SVt_PV : | |
2028 | kind == '@' ? SVt_PVAV : | |
2029 | kind == '%' ? SVt_PVHV : | |
a0d0e21e | 2030 | SVt_PVGV |
90e5519e | 2031 | ); |
748a9306 | 2032 | } |
79072805 LW |
2033 | } |
2034 | } | |
2035 | ||
1571675a GS |
2036 | NV |
2037 | Perl_str_to_version(pTHX_ SV *sv) | |
2038 | { | |
2039 | NV retval = 0.0; | |
2040 | NV nshift = 1.0; | |
2041 | STRLEN len; | |
cfd0369c | 2042 | const char *start = SvPV_const(sv,len); |
9d4ba2ae | 2043 | const char * const end = start + len; |
504618e9 | 2044 | const bool utf = SvUTF8(sv) ? TRUE : FALSE; |
7918f24d NC |
2045 | |
2046 | PERL_ARGS_ASSERT_STR_TO_VERSION; | |
2047 | ||
1571675a | 2048 | while (start < end) { |
ba210ebe | 2049 | STRLEN skip; |
1571675a GS |
2050 | UV n; |
2051 | if (utf) | |
9041c2e3 | 2052 | n = utf8n_to_uvchr((U8*)start, len, &skip, 0); |
1571675a GS |
2053 | else { |
2054 | n = *(U8*)start; | |
2055 | skip = 1; | |
2056 | } | |
2057 | retval += ((NV)n)/nshift; | |
2058 | start += skip; | |
2059 | nshift *= 1000; | |
2060 | } | |
2061 | return retval; | |
2062 | } | |
2063 | ||
4e553d73 | 2064 | /* |
ffb4593c NT |
2065 | * S_force_version |
2066 | * Forces the next token to be a version number. | |
e759cc13 RGS |
2067 | * If the next token appears to be an invalid version number, (e.g. "v2b"), |
2068 | * and if "guessing" is TRUE, then no new token is created (and the caller | |
2069 | * must use an alternative parsing method). | |
ffb4593c NT |
2070 | */ |
2071 | ||
76e3520e | 2072 | STATIC char * |
e759cc13 | 2073 | S_force_version(pTHX_ char *s, int guessing) |
89bfa8cd | 2074 | { |
97aff369 | 2075 | dVAR; |
5f66b61c | 2076 | OP *version = NULL; |
44dcb63b | 2077 | char *d; |
5db06880 NC |
2078 | #ifdef PERL_MAD |
2079 | I32 startoff = s - SvPVX(PL_linestr); | |
2080 | #endif | |
89bfa8cd | 2081 | |
7918f24d NC |
2082 | PERL_ARGS_ASSERT_FORCE_VERSION; |
2083 | ||
29595ff2 | 2084 | s = SKIPSPACE1(s); |
89bfa8cd | 2085 | |
44dcb63b | 2086 | d = s; |
dd629d5b | 2087 | if (*d == 'v') |
44dcb63b | 2088 | d++; |
44dcb63b | 2089 | if (isDIGIT(*d)) { |
e759cc13 RGS |
2090 | while (isDIGIT(*d) || *d == '_' || *d == '.') |
2091 | d++; | |
5db06880 NC |
2092 | #ifdef PERL_MAD |
2093 | if (PL_madskills) { | |
cd81e915 | 2094 | start_force(PL_curforce); |
5db06880 NC |
2095 | curmad('X', newSVpvn(s,d-s)); |
2096 | } | |
2097 | #endif | |
9f3d182e | 2098 | if (*d == ';' || isSPACE(*d) || *d == '}' || !*d) { |
dd629d5b | 2099 | SV *ver; |
6154021b RGS |
2100 | s = scan_num(s, &pl_yylval); |
2101 | version = pl_yylval.opval; | |
dd629d5b GS |
2102 | ver = cSVOPx(version)->op_sv; |
2103 | if (SvPOK(ver) && !SvNIOK(ver)) { | |
862a34c6 | 2104 | SvUPGRADE(ver, SVt_PVNV); |
9d6ce603 | 2105 | SvNV_set(ver, str_to_version(ver)); |
1571675a | 2106 | SvNOK_on(ver); /* hint that it is a version */ |
44dcb63b | 2107 | } |
89bfa8cd | 2108 | } |
5db06880 NC |
2109 | else if (guessing) { |
2110 | #ifdef PERL_MAD | |
2111 | if (PL_madskills) { | |
cd81e915 NC |
2112 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
2113 | PL_nextwhite = 0; | |
5db06880 NC |
2114 | s = SvPVX(PL_linestr) + startoff; |
2115 | } | |
2116 | #endif | |
e759cc13 | 2117 | return s; |
5db06880 | 2118 | } |
89bfa8cd | 2119 | } |
2120 | ||
5db06880 NC |
2121 | #ifdef PERL_MAD |
2122 | if (PL_madskills && !version) { | |
cd81e915 NC |
2123 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
2124 | PL_nextwhite = 0; | |
5db06880 NC |
2125 | s = SvPVX(PL_linestr) + startoff; |
2126 | } | |
2127 | #endif | |
89bfa8cd | 2128 | /* NOTE: The parser sees the package name and the VERSION swapped */ |
cd81e915 | 2129 | start_force(PL_curforce); |
9ded7720 | 2130 | NEXTVAL_NEXTTOKE.opval = version; |
4e553d73 | 2131 | force_next(WORD); |
89bfa8cd | 2132 | |
e759cc13 | 2133 | return s; |
89bfa8cd | 2134 | } |
2135 | ||
ffb4593c NT |
2136 | /* |
2137 | * S_tokeq | |
2138 | * Tokenize a quoted string passed in as an SV. It finds the next | |
2139 | * chunk, up to end of string or a backslash. It may make a new | |
2140 | * SV containing that chunk (if HINT_NEW_STRING is on). It also | |
2141 | * turns \\ into \. | |
2142 | */ | |
2143 | ||
76e3520e | 2144 | STATIC SV * |
cea2e8a9 | 2145 | S_tokeq(pTHX_ SV *sv) |
79072805 | 2146 | { |
97aff369 | 2147 | dVAR; |
79072805 LW |
2148 | register char *s; |
2149 | register char *send; | |
2150 | register char *d; | |
b3ac6de7 IZ |
2151 | STRLEN len = 0; |
2152 | SV *pv = sv; | |
79072805 | 2153 | |
7918f24d NC |
2154 | PERL_ARGS_ASSERT_TOKEQ; |
2155 | ||
79072805 | 2156 | if (!SvLEN(sv)) |
b3ac6de7 | 2157 | goto finish; |
79072805 | 2158 | |
a0d0e21e | 2159 | s = SvPV_force(sv, len); |
21a311ee | 2160 | if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) |
b3ac6de7 | 2161 | goto finish; |
463ee0b2 | 2162 | send = s + len; |
79072805 LW |
2163 | while (s < send && *s != '\\') |
2164 | s++; | |
2165 | if (s == send) | |
b3ac6de7 | 2166 | goto finish; |
79072805 | 2167 | d = s; |
be4731d2 | 2168 | if ( PL_hints & HINT_NEW_STRING ) { |
59cd0e26 | 2169 | pv = newSVpvn_flags(SvPVX_const(pv), len, SVs_TEMP | SvUTF8(sv)); |
be4731d2 | 2170 | } |
79072805 LW |
2171 | while (s < send) { |
2172 | if (*s == '\\') { | |
a0d0e21e | 2173 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
2174 | s++; /* all that, just for this */ |
2175 | } | |
2176 | *d++ = *s++; | |
2177 | } | |
2178 | *d = '\0'; | |
95a20fc0 | 2179 | SvCUR_set(sv, d - SvPVX_const(sv)); |
b3ac6de7 | 2180 | finish: |
3280af22 | 2181 | if ( PL_hints & HINT_NEW_STRING ) |
eb0d8d16 | 2182 | return new_constant(NULL, 0, "q", sv, pv, "q", 1); |
79072805 LW |
2183 | return sv; |
2184 | } | |
2185 | ||
ffb4593c NT |
2186 | /* |
2187 | * Now come three functions related to double-quote context, | |
2188 | * S_sublex_start, S_sublex_push, and S_sublex_done. They're used when | |
2189 | * converting things like "\u\Lgnat" into ucfirst(lc("gnat")). They | |
2190 | * interact with PL_lex_state, and create fake ( ... ) argument lists | |
2191 | * to handle functions and concatenation. | |
2192 | * They assume that whoever calls them will be setting up a fake | |
2193 | * join call, because each subthing puts a ',' after it. This lets | |
2194 | * "lower \luPpEr" | |
2195 | * become | |
2196 | * join($, , 'lower ', lcfirst( 'uPpEr', ) ,) | |
2197 | * | |
2198 | * (I'm not sure whether the spurious commas at the end of lcfirst's | |
2199 | * arguments and join's arguments are created or not). | |
2200 | */ | |
2201 | ||
2202 | /* | |
2203 | * S_sublex_start | |
6154021b | 2204 | * Assumes that pl_yylval.ival is the op we're creating (e.g. OP_LCFIRST). |
ffb4593c NT |
2205 | * |
2206 | * Pattern matching will set PL_lex_op to the pattern-matching op to | |
6154021b | 2207 | * make (we return THING if pl_yylval.ival is OP_NULL, PMFUNC otherwise). |
ffb4593c NT |
2208 | * |
2209 | * OP_CONST and OP_READLINE are easy--just make the new op and return. | |
2210 | * | |
2211 | * Everything else becomes a FUNC. | |
2212 | * | |
2213 | * Sets PL_lex_state to LEX_INTERPPUSH unless (ival was OP_NULL or we | |
2214 | * had an OP_CONST or OP_READLINE). This just sets us up for a | |
2215 | * call to S_sublex_push(). | |
2216 | */ | |
2217 | ||
76e3520e | 2218 | STATIC I32 |
cea2e8a9 | 2219 | S_sublex_start(pTHX) |
79072805 | 2220 | { |
97aff369 | 2221 | dVAR; |
6154021b | 2222 | register const I32 op_type = pl_yylval.ival; |
79072805 LW |
2223 | |
2224 | if (op_type == OP_NULL) { | |
6154021b | 2225 | pl_yylval.opval = PL_lex_op; |
5f66b61c | 2226 | PL_lex_op = NULL; |
79072805 LW |
2227 | return THING; |
2228 | } | |
2229 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
3280af22 | 2230 | SV *sv = tokeq(PL_lex_stuff); |
b3ac6de7 IZ |
2231 | |
2232 | if (SvTYPE(sv) == SVt_PVIV) { | |
2233 | /* Overloaded constants, nothing fancy: Convert to SVt_PV: */ | |
2234 | STRLEN len; | |
96a5add6 | 2235 | const char * const p = SvPV_const(sv, len); |
740cce10 | 2236 | SV * const nsv = newSVpvn_flags(p, len, SvUTF8(sv)); |
b3ac6de7 IZ |
2237 | SvREFCNT_dec(sv); |
2238 | sv = nsv; | |
4e553d73 | 2239 | } |
6154021b | 2240 | pl_yylval.opval = (OP*)newSVOP(op_type, 0, sv); |
a0714e2c | 2241 | PL_lex_stuff = NULL; |
6f33ba73 RGS |
2242 | /* Allow <FH> // "foo" */ |
2243 | if (op_type == OP_READLINE) | |
2244 | PL_expect = XTERMORDORDOR; | |
79072805 LW |
2245 | return THING; |
2246 | } | |
e3f73d4e RGS |
2247 | else if (op_type == OP_BACKTICK && PL_lex_op) { |
2248 | /* readpipe() vas overriden */ | |
2249 | cSVOPx(cLISTOPx(cUNOPx(PL_lex_op)->op_first)->op_first->op_sibling)->op_sv = tokeq(PL_lex_stuff); | |
6154021b | 2250 | pl_yylval.opval = PL_lex_op; |
9b201d7d | 2251 | PL_lex_op = NULL; |
e3f73d4e RGS |
2252 | PL_lex_stuff = NULL; |
2253 | return THING; | |
2254 | } | |
79072805 | 2255 | |
3280af22 | 2256 | PL_sublex_info.super_state = PL_lex_state; |
eac04b2e | 2257 | PL_sublex_info.sub_inwhat = (U16)op_type; |
3280af22 NIS |
2258 | PL_sublex_info.sub_op = PL_lex_op; |
2259 | PL_lex_state = LEX_INTERPPUSH; | |
55497cff | 2260 | |
3280af22 NIS |
2261 | PL_expect = XTERM; |
2262 | if (PL_lex_op) { | |
6154021b | 2263 | pl_yylval.opval = PL_lex_op; |
5f66b61c | 2264 | PL_lex_op = NULL; |
55497cff | 2265 | return PMFUNC; |
2266 | } | |
2267 | else | |
2268 | return FUNC; | |
2269 | } | |
2270 | ||
ffb4593c NT |
2271 | /* |
2272 | * S_sublex_push | |
2273 | * Create a new scope to save the lexing state. The scope will be | |
2274 | * ended in S_sublex_done. Returns a '(', starting the function arguments | |
2275 | * to the uc, lc, etc. found before. | |
2276 | * Sets PL_lex_state to LEX_INTERPCONCAT. | |
2277 | */ | |
2278 | ||
76e3520e | 2279 | STATIC I32 |
cea2e8a9 | 2280 | S_sublex_push(pTHX) |
55497cff | 2281 | { |
27da23d5 | 2282 | dVAR; |
f46d017c | 2283 | ENTER; |
55497cff | 2284 | |
3280af22 | 2285 | PL_lex_state = PL_sublex_info.super_state; |
651b5b28 | 2286 | SAVEBOOL(PL_lex_dojoin); |
3280af22 | 2287 | SAVEI32(PL_lex_brackets); |
3280af22 NIS |
2288 | SAVEI32(PL_lex_casemods); |
2289 | SAVEI32(PL_lex_starts); | |
651b5b28 | 2290 | SAVEI8(PL_lex_state); |
7766f137 | 2291 | SAVEVPTR(PL_lex_inpat); |
98246f1e | 2292 | SAVEI16(PL_lex_inwhat); |
57843af0 | 2293 | SAVECOPLINE(PL_curcop); |
3280af22 | 2294 | SAVEPPTR(PL_bufptr); |
8452ff4b | 2295 | SAVEPPTR(PL_bufend); |
3280af22 NIS |
2296 | SAVEPPTR(PL_oldbufptr); |
2297 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
2298 | SAVEPPTR(PL_last_lop); |
2299 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
2300 | SAVEPPTR(PL_linestart); |
2301 | SAVESPTR(PL_linestr); | |
8edd5f42 RGS |
2302 | SAVEGENERICPV(PL_lex_brackstack); |
2303 | SAVEGENERICPV(PL_lex_casestack); | |
3280af22 NIS |
2304 | |
2305 | PL_linestr = PL_lex_stuff; | |
a0714e2c | 2306 | PL_lex_stuff = NULL; |
3280af22 | 2307 | |
9cbb5ea2 GS |
2308 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart |
2309 | = SvPVX(PL_linestr); | |
3280af22 | 2310 | PL_bufend += SvCUR(PL_linestr); |
bd61b366 | 2311 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
2312 | SAVEFREESV(PL_linestr); |
2313 | ||
2314 | PL_lex_dojoin = FALSE; | |
2315 | PL_lex_brackets = 0; | |
a02a5408 JC |
2316 | Newx(PL_lex_brackstack, 120, char); |
2317 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
2318 | PL_lex_casemods = 0; |
2319 | *PL_lex_casestack = '\0'; | |
2320 | PL_lex_starts = 0; | |
2321 | PL_lex_state = LEX_INTERPCONCAT; | |
eb160463 | 2322 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 NIS |
2323 | |
2324 | PL_lex_inwhat = PL_sublex_info.sub_inwhat; | |
2325 | if (PL_lex_inwhat == OP_MATCH || PL_lex_inwhat == OP_QR || PL_lex_inwhat == OP_SUBST) | |
2326 | PL_lex_inpat = PL_sublex_info.sub_op; | |
79072805 | 2327 | else |
5f66b61c | 2328 | PL_lex_inpat = NULL; |
79072805 | 2329 | |
55497cff | 2330 | return '('; |
79072805 LW |
2331 | } |
2332 | ||
ffb4593c NT |
2333 | /* |
2334 | * S_sublex_done | |
2335 | * Restores lexer state after a S_sublex_push. | |
2336 | */ | |
2337 | ||
76e3520e | 2338 | STATIC I32 |
cea2e8a9 | 2339 | S_sublex_done(pTHX) |
79072805 | 2340 | { |
27da23d5 | 2341 | dVAR; |
3280af22 | 2342 | if (!PL_lex_starts++) { |
396482e1 | 2343 | SV * const sv = newSVpvs(""); |
9aa983d2 JH |
2344 | if (SvUTF8(PL_linestr)) |
2345 | SvUTF8_on(sv); | |
3280af22 | 2346 | PL_expect = XOPERATOR; |
6154021b | 2347 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
79072805 LW |
2348 | return THING; |
2349 | } | |
2350 | ||
3280af22 NIS |
2351 | if (PL_lex_casemods) { /* oops, we've got some unbalanced parens */ |
2352 | PL_lex_state = LEX_INTERPCASEMOD; | |
cea2e8a9 | 2353 | return yylex(); |
79072805 LW |
2354 | } |
2355 | ||
ffb4593c | 2356 | /* Is there a right-hand side to take care of? (s//RHS/ or tr//RHS/) */ |
3280af22 NIS |
2357 | if (PL_lex_repl && (PL_lex_inwhat == OP_SUBST || PL_lex_inwhat == OP_TRANS)) { |
2358 | PL_linestr = PL_lex_repl; | |
2359 | PL_lex_inpat = 0; | |
2360 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
2361 | PL_bufend += SvCUR(PL_linestr); | |
bd61b366 | 2362 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
2363 | SAVEFREESV(PL_linestr); |
2364 | PL_lex_dojoin = FALSE; | |
2365 | PL_lex_brackets = 0; | |
3280af22 NIS |
2366 | PL_lex_casemods = 0; |
2367 | *PL_lex_casestack = '\0'; | |
2368 | PL_lex_starts = 0; | |
25da4f38 | 2369 | if (SvEVALED(PL_lex_repl)) { |
3280af22 NIS |
2370 | PL_lex_state = LEX_INTERPNORMAL; |
2371 | PL_lex_starts++; | |
e9fa98b2 HS |
2372 | /* we don't clear PL_lex_repl here, so that we can check later |
2373 | whether this is an evalled subst; that means we rely on the | |
2374 | logic to ensure sublex_done() is called again only via the | |
2375 | branch (in yylex()) that clears PL_lex_repl, else we'll loop */ | |
79072805 | 2376 | } |
e9fa98b2 | 2377 | else { |
3280af22 | 2378 | PL_lex_state = LEX_INTERPCONCAT; |
a0714e2c | 2379 | PL_lex_repl = NULL; |
e9fa98b2 | 2380 | } |
79072805 | 2381 | return ','; |
ffed7fef LW |
2382 | } |
2383 | else { | |
5db06880 NC |
2384 | #ifdef PERL_MAD |
2385 | if (PL_madskills) { | |
cd81e915 NC |
2386 | if (PL_thiswhite) { |
2387 | if (!PL_endwhite) | |
6b29d1f5 | 2388 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
2389 | sv_catsv(PL_endwhite, PL_thiswhite); |
2390 | PL_thiswhite = 0; | |
2391 | } | |
2392 | if (PL_thistoken) | |
76f68e9b | 2393 | sv_setpvs(PL_thistoken,""); |
5db06880 | 2394 | else |
cd81e915 | 2395 | PL_realtokenstart = -1; |
5db06880 NC |
2396 | } |
2397 | #endif | |
f46d017c | 2398 | LEAVE; |
3280af22 NIS |
2399 | PL_bufend = SvPVX(PL_linestr); |
2400 | PL_bufend += SvCUR(PL_linestr); | |
2401 | PL_expect = XOPERATOR; | |
09bef843 | 2402 | PL_sublex_info.sub_inwhat = 0; |
79072805 | 2403 | return ')'; |
ffed7fef LW |
2404 | } |
2405 | } | |
2406 | ||
02aa26ce NT |
2407 | /* |
2408 | scan_const | |
2409 | ||
2410 | Extracts a pattern, double-quoted string, or transliteration. This | |
2411 | is terrifying code. | |
2412 | ||
94def140 | 2413 | It looks at PL_lex_inwhat and PL_lex_inpat to find out whether it's |
3280af22 | 2414 | processing a pattern (PL_lex_inpat is true), a transliteration |
94def140 | 2415 | (PL_lex_inwhat == OP_TRANS is true), or a double-quoted string. |
02aa26ce | 2416 | |
94def140 TS |
2417 | Returns a pointer to the character scanned up to. If this is |
2418 | advanced from the start pointer supplied (i.e. if anything was | |
9b599b2a | 2419 | successfully parsed), will leave an OP for the substring scanned |
6154021b | 2420 | in pl_yylval. Caller must intuit reason for not parsing further |
9b599b2a GS |
2421 | by looking at the next characters herself. |
2422 | ||
02aa26ce NT |
2423 | In patterns: |
2424 | backslashes: | |
2425 | double-quoted style: \r and \n | |
2426 | regexp special ones: \D \s | |
94def140 TS |
2427 | constants: \x31 |
2428 | backrefs: \1 | |
02aa26ce NT |
2429 | case and quoting: \U \Q \E |
2430 | stops on @ and $, but not for $ as tail anchor | |
2431 | ||
2432 | In transliterations: | |
2433 | characters are VERY literal, except for - not at the start or end | |
94def140 TS |
2434 | of the string, which indicates a range. If the range is in bytes, |
2435 | scan_const expands the range to the full set of intermediate | |
2436 | characters. If the range is in utf8, the hyphen is replaced with | |
2437 | a certain range mark which will be handled by pmtrans() in op.c. | |
02aa26ce NT |
2438 | |
2439 | In double-quoted strings: | |
2440 | backslashes: | |
2441 | double-quoted style: \r and \n | |
94def140 TS |
2442 | constants: \x31 |
2443 | deprecated backrefs: \1 (in substitution replacements) | |
02aa26ce NT |
2444 | case and quoting: \U \Q \E |
2445 | stops on @ and $ | |
2446 | ||
2447 | scan_const does *not* construct ops to handle interpolated strings. | |
2448 | It stops processing as soon as it finds an embedded $ or @ variable | |
2449 | and leaves it to the caller to work out what's going on. | |
2450 | ||
94def140 TS |
2451 | embedded arrays (whether in pattern or not) could be: |
2452 | @foo, @::foo, @'foo, @{foo}, @$foo, @+, @-. | |
2453 | ||
2454 | $ in double-quoted strings must be the symbol of an embedded scalar. | |
02aa26ce NT |
2455 | |
2456 | $ in pattern could be $foo or could be tail anchor. Assumption: | |
2457 | it's a tail anchor if $ is the last thing in the string, or if it's | |
94def140 | 2458 | followed by one of "()| \r\n\t" |
02aa26ce NT |
2459 | |
2460 | \1 (backreferences) are turned into $1 | |
2461 | ||
2462 | The structure of the code is | |
2463 | while (there's a character to process) { | |
94def140 TS |
2464 | handle transliteration ranges |
2465 | skip regexp comments /(?#comment)/ and codes /(?{code})/ | |
2466 | skip #-initiated comments in //x patterns | |
2467 | check for embedded arrays | |
02aa26ce NT |
2468 | check for embedded scalars |
2469 | if (backslash) { | |
94def140 TS |
2470 | leave intact backslashes from leaveit (below) |
2471 | deprecate \1 in substitution replacements | |
02aa26ce NT |
2472 | handle string-changing backslashes \l \U \Q \E, etc. |
2473 | switch (what was escaped) { | |
94def140 TS |
2474 | handle \- in a transliteration (becomes a literal -) |
2475 | handle \132 (octal characters) | |
2476 | handle \x15 and \x{1234} (hex characters) | |
2477 | handle \N{name} (named characters) | |
2478 | handle \cV (control characters) | |
2479 | handle printf-style backslashes (\f, \r, \n, etc) | |
02aa26ce | 2480 | } (end switch) |
77a135fe | 2481 | continue |
02aa26ce | 2482 | } (end if backslash) |
77a135fe | 2483 | handle regular character |
02aa26ce | 2484 | } (end while character to read) |
4e553d73 | 2485 | |
02aa26ce NT |
2486 | */ |
2487 | ||
76e3520e | 2488 | STATIC char * |
cea2e8a9 | 2489 | S_scan_const(pTHX_ char *start) |
79072805 | 2490 | { |
97aff369 | 2491 | dVAR; |
3280af22 | 2492 | register char *send = PL_bufend; /* end of the constant */ |
77a135fe KW |
2493 | SV *sv = newSV(send - start); /* sv for the constant. See |
2494 | note below on sizing. */ | |
02aa26ce NT |
2495 | register char *s = start; /* start of the constant */ |
2496 | register char *d = SvPVX(sv); /* destination for copies */ | |
2497 | bool dorange = FALSE; /* are we in a translit range? */ | |
c2e66d9e | 2498 | bool didrange = FALSE; /* did we just finish a range? */ |
2b9d42f0 | 2499 | I32 has_utf8 = FALSE; /* Output constant is UTF8 */ |
77a135fe KW |
2500 | I32 this_utf8 = UTF; /* Is the source string assumed |
2501 | to be UTF8? But, this can | |
2502 | show as true when the source | |
2503 | isn't utf8, as for example | |
2504 | when it is entirely composed | |
2505 | of hex constants */ | |
2506 | ||
2507 | /* Note on sizing: The scanned constant is placed into sv, which is | |
2508 | * initialized by newSV() assuming one byte of output for every byte of | |
2509 | * input. This routine expects newSV() to allocate an extra byte for a | |
2510 | * trailing NUL, which this routine will append if it gets to the end of | |
2511 | * the input. There may be more bytes of input than output (eg., \N{LATIN | |
2512 | * CAPITAL LETTER A}), or more output than input if the constant ends up | |
2513 | * recoded to utf8, but each time a construct is found that might increase | |
2514 | * the needed size, SvGROW() is called. Its size parameter each time is | |
2515 | * based on the best guess estimate at the time, namely the length used so | |
2516 | * far, plus the length the current construct will occupy, plus room for | |
2517 | * the trailing NUL, plus one byte for every input byte still unscanned */ | |
2518 | ||
012bcf8d | 2519 | UV uv; |
4c3a8340 TS |
2520 | #ifdef EBCDIC |
2521 | UV literal_endpoint = 0; | |
e294cc5d | 2522 | bool native_range = TRUE; /* turned to FALSE if the first endpoint is Unicode. */ |
4c3a8340 | 2523 | #endif |
012bcf8d | 2524 | |
7918f24d NC |
2525 | PERL_ARGS_ASSERT_SCAN_CONST; |
2526 | ||
2b9d42f0 NIS |
2527 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
2528 | /* If we are doing a trans and we know we want UTF8 set expectation */ | |
2529 | has_utf8 = PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF); | |
2530 | this_utf8 = PL_sublex_info.sub_op->op_private & (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
2531 | } | |
2532 | ||
2533 | ||
79072805 | 2534 | while (s < send || dorange) { |
02aa26ce | 2535 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 2536 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 2537 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 2538 | if (dorange) { |
1ba5c669 JH |
2539 | I32 i; /* current expanded character */ |
2540 | I32 min; /* first character in range */ | |
2541 | I32 max; /* last character in range */ | |
02aa26ce | 2542 | |
e294cc5d JH |
2543 | #ifdef EBCDIC |
2544 | UV uvmax = 0; | |
2545 | #endif | |
2546 | ||
2547 | if (has_utf8 | |
2548 | #ifdef EBCDIC | |
2549 | && !native_range | |
2550 | #endif | |
2551 | ) { | |
9d4ba2ae | 2552 | char * const c = (char*)utf8_hop((U8*)d, -1); |
8973db79 JH |
2553 | char *e = d++; |
2554 | while (e-- > c) | |
2555 | *(e + 1) = *e; | |
25716404 | 2556 | *c = (char)UTF_TO_NATIVE(0xff); |
8973db79 JH |
2557 | /* mark the range as done, and continue */ |
2558 | dorange = FALSE; | |
2559 | didrange = TRUE; | |
2560 | continue; | |
2561 | } | |
2b9d42f0 | 2562 | |
95a20fc0 | 2563 | i = d - SvPVX_const(sv); /* remember current offset */ |
e294cc5d JH |
2564 | #ifdef EBCDIC |
2565 | SvGROW(sv, | |
2566 | SvLEN(sv) + (has_utf8 ? | |
2567 | (512 - UTF_CONTINUATION_MARK + | |
2568 | UNISKIP(0x100)) | |
2569 | : 256)); | |
2570 | /* How many two-byte within 0..255: 128 in UTF-8, | |
2571 | * 96 in UTF-8-mod. */ | |
2572 | #else | |
9cbb5ea2 | 2573 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
e294cc5d | 2574 | #endif |
9cbb5ea2 | 2575 | d = SvPVX(sv) + i; /* refresh d after realloc */ |
e294cc5d JH |
2576 | #ifdef EBCDIC |
2577 | if (has_utf8) { | |
2578 | int j; | |
2579 | for (j = 0; j <= 1; j++) { | |
2580 | char * const c = (char*)utf8_hop((U8*)d, -1); | |
2581 | const UV uv = utf8n_to_uvchr((U8*)c, d - c, NULL, 0); | |
2582 | if (j) | |
2583 | min = (U8)uv; | |
2584 | else if (uv < 256) | |
2585 | max = (U8)uv; | |
2586 | else { | |
2587 | max = (U8)0xff; /* only to \xff */ | |
2588 | uvmax = uv; /* \x{100} to uvmax */ | |
2589 | } | |
2590 | d = c; /* eat endpoint chars */ | |
2591 | } | |
2592 | } | |
2593 | else { | |
2594 | #endif | |
2595 | d -= 2; /* eat the first char and the - */ | |
2596 | min = (U8)*d; /* first char in range */ | |
2597 | max = (U8)d[1]; /* last char in range */ | |
2598 | #ifdef EBCDIC | |
2599 | } | |
2600 | #endif | |
8ada0baa | 2601 | |
c2e66d9e | 2602 | if (min > max) { |
01ec43d0 | 2603 | Perl_croak(aTHX_ |
d1573ac7 | 2604 | "Invalid range \"%c-%c\" in transliteration operator", |
1ba5c669 | 2605 | (char)min, (char)max); |
c2e66d9e GS |
2606 | } |
2607 | ||
c7f1f016 | 2608 | #ifdef EBCDIC |
4c3a8340 TS |
2609 | if (literal_endpoint == 2 && |
2610 | ((isLOWER(min) && isLOWER(max)) || | |
2611 | (isUPPER(min) && isUPPER(max)))) { | |
8ada0baa JH |
2612 | if (isLOWER(min)) { |
2613 | for (i = min; i <= max; i++) | |
2614 | if (isLOWER(i)) | |
db42d148 | 2615 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
2616 | } else { |
2617 | for (i = min; i <= max; i++) | |
2618 | if (isUPPER(i)) | |
db42d148 | 2619 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
2620 | } |
2621 | } | |
2622 | else | |
2623 | #endif | |
2624 | for (i = min; i <= max; i++) | |
e294cc5d JH |
2625 | #ifdef EBCDIC |
2626 | if (has_utf8) { | |
2627 | const U8 ch = (U8)NATIVE_TO_UTF(i); | |
2628 | if (UNI_IS_INVARIANT(ch)) | |
2629 | *d++ = (U8)i; | |
2630 | else { | |
2631 | *d++ = (U8)UTF8_EIGHT_BIT_HI(ch); | |
2632 | *d++ = (U8)UTF8_EIGHT_BIT_LO(ch); | |
2633 | } | |
2634 | } | |
2635 | else | |
2636 | #endif | |
2637 | *d++ = (char)i; | |
2638 | ||
2639 | #ifdef EBCDIC | |
2640 | if (uvmax) { | |
2641 | d = (char*)uvchr_to_utf8((U8*)d, 0x100); | |
2642 | if (uvmax > 0x101) | |
2643 | *d++ = (char)UTF_TO_NATIVE(0xff); | |
2644 | if (uvmax > 0x100) | |
2645 | d = (char*)uvchr_to_utf8((U8*)d, uvmax); | |
2646 | } | |
2647 | #endif | |
02aa26ce NT |
2648 | |
2649 | /* mark the range as done, and continue */ | |
79072805 | 2650 | dorange = FALSE; |
01ec43d0 | 2651 | didrange = TRUE; |
4c3a8340 TS |
2652 | #ifdef EBCDIC |
2653 | literal_endpoint = 0; | |
2654 | #endif | |
79072805 | 2655 | continue; |
4e553d73 | 2656 | } |
02aa26ce NT |
2657 | |
2658 | /* range begins (ignore - as first or last char) */ | |
79072805 | 2659 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 2660 | if (didrange) { |
1fafa243 | 2661 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 2662 | } |
e294cc5d JH |
2663 | if (has_utf8 |
2664 | #ifdef EBCDIC | |
2665 | && !native_range | |
2666 | #endif | |
2667 | ) { | |
25716404 | 2668 | *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
2669 | s++; |
2670 | continue; | |
2671 | } | |
79072805 LW |
2672 | dorange = TRUE; |
2673 | s++; | |
01ec43d0 GS |
2674 | } |
2675 | else { | |
2676 | didrange = FALSE; | |
4c3a8340 TS |
2677 | #ifdef EBCDIC |
2678 | literal_endpoint = 0; | |
e294cc5d | 2679 | native_range = TRUE; |
4c3a8340 | 2680 | #endif |
01ec43d0 | 2681 | } |
79072805 | 2682 | } |
02aa26ce NT |
2683 | |
2684 | /* if we get here, we're not doing a transliteration */ | |
2685 | ||
0f5d15d6 IZ |
2686 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
2687 | except for the last char, which will be done separately. */ | |
3280af22 | 2688 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 | 2689 | if (s[2] == '#') { |
e994fd66 | 2690 | while (s+1 < send && *s != ')') |
db42d148 | 2691 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
155aba94 GS |
2692 | } |
2693 | else if (s[2] == '{' /* This should match regcomp.c */ | |
67edc0c9 | 2694 | || (s[2] == '?' && s[3] == '{')) |
155aba94 | 2695 | { |
cc6b7395 | 2696 | I32 count = 1; |
0f5d15d6 | 2697 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
2698 | char c; |
2699 | ||
d9f97599 GS |
2700 | while (count && (c = *regparse)) { |
2701 | if (c == '\\' && regparse[1]) | |
2702 | regparse++; | |
4e553d73 | 2703 | else if (c == '{') |
cc6b7395 | 2704 | count++; |
4e553d73 | 2705 | else if (c == '}') |
cc6b7395 | 2706 | count--; |
d9f97599 | 2707 | regparse++; |
cc6b7395 | 2708 | } |
e994fd66 | 2709 | if (*regparse != ')') |
5bdf89e7 | 2710 | regparse--; /* Leave one char for continuation. */ |
0f5d15d6 | 2711 | while (s < regparse) |
db42d148 | 2712 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
cc6b7395 | 2713 | } |
748a9306 | 2714 | } |
02aa26ce NT |
2715 | |
2716 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
2717 | else if (*s == '#' && PL_lex_inpat && |
2718 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 | 2719 | while (s+1 < send && *s != '\n') |
db42d148 | 2720 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
748a9306 | 2721 | } |
02aa26ce | 2722 | |
5d1d4326 | 2723 | /* check for embedded arrays |
da6eedaa | 2724 | (@foo, @::foo, @'foo, @{foo}, @$foo, @+, @-) |
5d1d4326 | 2725 | */ |
1749ea0d TS |
2726 | else if (*s == '@' && s[1]) { |
2727 | if (isALNUM_lazy_if(s+1,UTF)) | |
2728 | break; | |
2729 | if (strchr(":'{$", s[1])) | |
2730 | break; | |
2731 | if (!PL_lex_inpat && (s[1] == '+' || s[1] == '-')) | |
2732 | break; /* in regexp, neither @+ nor @- are interpolated */ | |
2733 | } | |
02aa26ce NT |
2734 | |
2735 | /* check for embedded scalars. only stop if we're sure it's a | |
2736 | variable. | |
2737 | */ | |
79072805 | 2738 | else if (*s == '$') { |
3280af22 | 2739 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 2740 | break; |
77772344 | 2741 | if (s + 1 < send && !strchr("()| \r\n\t", s[1])) { |
a2a5de95 NC |
2742 | if (s[1] == '\\') { |
2743 | Perl_ck_warner(aTHX_ packWARN(WARN_AMBIGUOUS), | |
2744 | "Possible unintended interpolation of $\\ in regex"); | |
77772344 | 2745 | } |
79072805 | 2746 | break; /* in regexp, $ might be tail anchor */ |
77772344 | 2747 | } |
79072805 | 2748 | } |
02aa26ce | 2749 | |
2b9d42f0 NIS |
2750 | /* End of else if chain - OP_TRANS rejoin rest */ |
2751 | ||
02aa26ce | 2752 | /* backslashes */ |
79072805 LW |
2753 | if (*s == '\\' && s+1 < send) { |
2754 | s++; | |
02aa26ce | 2755 | |
02aa26ce | 2756 | /* deprecate \1 in strings and substitution replacements */ |
3280af22 | 2757 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 2758 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 2759 | { |
a2a5de95 | 2760 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s); |
79072805 LW |
2761 | *--s = '$'; |
2762 | break; | |
2763 | } | |
02aa26ce NT |
2764 | |
2765 | /* string-change backslash escapes */ | |
3280af22 | 2766 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
2767 | --s; |
2768 | break; | |
2769 | } | |
cc74c5bd TS |
2770 | /* skip any other backslash escapes in a pattern */ |
2771 | else if (PL_lex_inpat) { | |
2772 | *d++ = NATIVE_TO_NEED(has_utf8,'\\'); | |
2773 | goto default_action; | |
2774 | } | |
02aa26ce NT |
2775 | |
2776 | /* if we get here, it's either a quoted -, or a digit */ | |
79072805 | 2777 | switch (*s) { |
02aa26ce NT |
2778 | |
2779 | /* quoted - in transliterations */ | |
79072805 | 2780 | case '-': |
3280af22 | 2781 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
2782 | *d++ = *s++; |
2783 | continue; | |
2784 | } | |
2785 | /* FALL THROUGH */ | |
2786 | default: | |
11b8faa4 | 2787 | { |
a2a5de95 NC |
2788 | if ((isALPHA(*s) || isDIGIT(*s))) |
2789 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
2790 | "Unrecognized escape \\%c passed through", | |
2791 | *s); | |
11b8faa4 | 2792 | /* default action is to copy the quoted character */ |
f9a63242 | 2793 | goto default_action; |
11b8faa4 | 2794 | } |
02aa26ce | 2795 | |
77a135fe | 2796 | /* eg. \132 indicates the octal constant 0x132 */ |
79072805 LW |
2797 | case '0': case '1': case '2': case '3': |
2798 | case '4': case '5': case '6': case '7': | |
ba210ebe | 2799 | { |
53305cf1 NC |
2800 | I32 flags = 0; |
2801 | STRLEN len = 3; | |
77a135fe | 2802 | uv = NATIVE_TO_UNI(grok_oct(s, &len, &flags, NULL)); |
ba210ebe JH |
2803 | s += len; |
2804 | } | |
012bcf8d | 2805 | goto NUM_ESCAPE_INSERT; |
02aa26ce | 2806 | |
77a135fe | 2807 | /* eg. \x24 indicates the hex constant 0x24 */ |
79072805 | 2808 | case 'x': |
a0ed51b3 LW |
2809 | ++s; |
2810 | if (*s == '{') { | |
9d4ba2ae | 2811 | char* const e = strchr(s, '}'); |
a4c04bdc NC |
2812 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
2813 | PERL_SCAN_DISALLOW_PREFIX; | |
53305cf1 | 2814 | STRLEN len; |
355860ce | 2815 | |
53305cf1 | 2816 | ++s; |
adaeee49 | 2817 | if (!e) { |
a0ed51b3 | 2818 | yyerror("Missing right brace on \\x{}"); |
355860ce | 2819 | continue; |
ba210ebe | 2820 | } |
53305cf1 | 2821 | len = e - s; |
77a135fe | 2822 | uv = NATIVE_TO_UNI(grok_hex(s, &len, &flags, NULL)); |
ba210ebe | 2823 | s = e + 1; |
a0ed51b3 LW |
2824 | } |
2825 | else { | |
ba210ebe | 2826 | { |
53305cf1 | 2827 | STRLEN len = 2; |
a4c04bdc | 2828 | I32 flags = PERL_SCAN_DISALLOW_PREFIX; |
77a135fe | 2829 | uv = NATIVE_TO_UNI(grok_hex(s, &len, &flags, NULL)); |
ba210ebe JH |
2830 | s += len; |
2831 | } | |
012bcf8d GS |
2832 | } |
2833 | ||
2834 | NUM_ESCAPE_INSERT: | |
77a135fe KW |
2835 | /* Insert oct, hex, or \N{U+...} escaped character. There will |
2836 | * always be enough room in sv since such escapes will be | |
2837 | * longer than any UTF-8 sequence they can end up as, except if | |
2838 | * they force us to recode the rest of the string into utf8 */ | |
ba7cea30 | 2839 | |
77a135fe KW |
2840 | /* Here uv is the ordinal of the next character being added in |
2841 | * unicode (converted from native). (It has to be done before | |
2842 | * here because \N is interpreted as unicode, and oct and hex | |
2843 | * as native.) */ | |
2844 | if (!UNI_IS_INVARIANT(uv)) { | |
9aa983d2 | 2845 | if (!has_utf8 && uv > 255) { |
77a135fe KW |
2846 | /* Might need to recode whatever we have accumulated so |
2847 | * far if it contains any chars variant in utf8 or | |
2848 | * utf-ebcdic. */ | |
2849 | ||
2850 | SvCUR_set(sv, d - SvPVX_const(sv)); | |
2851 | SvPOK_on(sv); | |
2852 | *d = '\0'; | |
77a135fe | 2853 | /* See Note on sizing above. */ |
7bf79863 KW |
2854 | sv_utf8_upgrade_flags_grow(sv, |
2855 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
2856 | UNISKIP(uv) + (STRLEN)(send - s) + 1); | |
77a135fe KW |
2857 | d = SvPVX(sv) + SvCUR(sv); |
2858 | has_utf8 = TRUE; | |
012bcf8d GS |
2859 | } |
2860 | ||
77a135fe KW |
2861 | if (has_utf8) { |
2862 | d = (char*)uvuni_to_utf8((U8*)d, uv); | |
f9a63242 JH |
2863 | if (PL_lex_inwhat == OP_TRANS && |
2864 | PL_sublex_info.sub_op) { | |
2865 | PL_sublex_info.sub_op->op_private |= | |
2866 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
2867 | : OPpTRANS_TO_UTF); | |
f9a63242 | 2868 | } |
e294cc5d JH |
2869 | #ifdef EBCDIC |
2870 | if (uv > 255 && !dorange) | |
2871 | native_range = FALSE; | |
2872 | #endif | |
012bcf8d | 2873 | } |
a0ed51b3 | 2874 | else { |
012bcf8d | 2875 | *d++ = (char)uv; |
a0ed51b3 | 2876 | } |
012bcf8d GS |
2877 | } |
2878 | else { | |
c4d5f83a | 2879 | *d++ = (char) uv; |
a0ed51b3 | 2880 | } |
79072805 | 2881 | continue; |
02aa26ce | 2882 | |
77a135fe KW |
2883 | /* \N{LATIN SMALL LETTER A} is a named character, and so is |
2884 | * \N{U+0041} */ | |
4a2d328f | 2885 | case 'N': |
55eda711 | 2886 | ++s; |
423cee85 JH |
2887 | if (*s == '{') { |
2888 | char* e = strchr(s, '}'); | |
155aba94 | 2889 | SV *res; |
423cee85 | 2890 | STRLEN len; |
cfd0369c | 2891 | const char *str; |
4e553d73 | 2892 | |
423cee85 | 2893 | if (!e) { |
5777a3f7 | 2894 | yyerror("Missing right brace on \\N{}"); |
423cee85 JH |
2895 | e = s - 1; |
2896 | goto cont_scan; | |
2897 | } | |
dbc0d4f2 | 2898 | if (e > s + 2 && s[1] == 'U' && s[2] == '+') { |
77a135fe KW |
2899 | /* \N{U+...} The ... is a unicode value even on EBCDIC |
2900 | * machines */ | |
dbc0d4f2 JH |
2901 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
2902 | PERL_SCAN_DISALLOW_PREFIX; | |
2903 | s += 3; | |
2904 | len = e - s; | |
2905 | uv = grok_hex(s, &len, &flags, NULL); | |
b57a0404 JH |
2906 | if ( e > s && len != (STRLEN)(e - s) ) { |
2907 | uv = 0xFFFD; | |
fc8cd66c | 2908 | } |
dbc0d4f2 JH |
2909 | s = e + 1; |
2910 | goto NUM_ESCAPE_INSERT; | |
2911 | } | |
55eda711 | 2912 | res = newSVpvn(s + 1, e - s - 1); |
bd61b366 | 2913 | res = new_constant( NULL, 0, "charnames", |
eb0d8d16 | 2914 | res, NULL, s - 2, e - s + 3 ); |
f9a63242 JH |
2915 | if (has_utf8) |
2916 | sv_utf8_upgrade(res); | |
cfd0369c | 2917 | str = SvPV_const(res,len); |
1c47067b JH |
2918 | #ifdef EBCDIC_NEVER_MIND |
2919 | /* charnames uses pack U and that has been | |
2920 | * recently changed to do the below uni->native | |
2921 | * mapping, so this would be redundant (and wrong, | |
2922 | * the code point would be doubly converted). | |
2923 | * But leave this in just in case the pack U change | |
2924 | * gets revoked, but the semantics is still | |
2925 | * desireable for charnames. --jhi */ | |
cddc7ef4 | 2926 | { |
cfd0369c | 2927 | UV uv = utf8_to_uvchr((const U8*)str, 0); |
cddc7ef4 JH |
2928 | |
2929 | if (uv < 0x100) { | |
89ebb4a3 | 2930 | U8 tmpbuf[UTF8_MAXBYTES+1], *d; |
cddc7ef4 JH |
2931 | |
2932 | d = uvchr_to_utf8(tmpbuf, UNI_TO_NATIVE(uv)); | |
2933 | sv_setpvn(res, (char *)tmpbuf, d - tmpbuf); | |
cfd0369c | 2934 | str = SvPV_const(res, len); |
cddc7ef4 JH |
2935 | } |
2936 | } | |
2937 | #endif | |
77a135fe KW |
2938 | /* If destination is not in utf8 but this new character is, |
2939 | * recode the dest to utf8 */ | |
89491803 | 2940 | if (!has_utf8 && SvUTF8(res)) { |
77a135fe | 2941 | SvCUR_set(sv, d - SvPVX_const(sv)); |
f08d6ad9 | 2942 | SvPOK_on(sv); |
e4f3eed8 | 2943 | *d = '\0'; |
77a135fe | 2944 | /* See Note on sizing above. */ |
7bf79863 KW |
2945 | sv_utf8_upgrade_flags_grow(sv, |
2946 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
2947 | len + (STRLEN)(send - s) + 1); | |
f08d6ad9 | 2948 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 2949 | has_utf8 = TRUE; |
77a135fe | 2950 | } else if (len > (STRLEN)(e - s + 4)) { /* I _guess_ 4 is \N{} --jhi */ |
423cee85 | 2951 | |
77a135fe KW |
2952 | /* See Note on sizing above. (NOTE: SvCUR() is not set |
2953 | * correctly here). */ | |
2954 | const STRLEN off = d - SvPVX_const(sv); | |
2955 | d = SvGROW(sv, off + len + (STRLEN)(send - s) + 1) + off; | |
423cee85 | 2956 | } |
e294cc5d JH |
2957 | #ifdef EBCDIC |
2958 | if (!dorange) | |
2959 | native_range = FALSE; /* \N{} is guessed to be Unicode */ | |
2960 | #endif | |
423cee85 JH |
2961 | Copy(str, d, len, char); |
2962 | d += len; | |
2963 | SvREFCNT_dec(res); | |
2964 | cont_scan: | |
2965 | s = e + 1; | |
2966 | } | |
2967 | else | |
5777a3f7 | 2968 | yyerror("Missing braces on \\N{}"); |
423cee85 JH |
2969 | continue; |
2970 | ||
02aa26ce | 2971 | /* \c is a control character */ |
79072805 LW |
2972 | case 'c': |
2973 | s++; | |
961ce445 | 2974 | if (s < send) { |
ba210ebe | 2975 | U8 c = *s++; |
c7f1f016 NIS |
2976 | #ifdef EBCDIC |
2977 | if (isLOWER(c)) | |
2978 | c = toUPPER(c); | |
2979 | #endif | |
db42d148 | 2980 | *d++ = NATIVE_TO_NEED(has_utf8,toCTRL(c)); |
ba210ebe | 2981 | } |
961ce445 RGS |
2982 | else { |
2983 | yyerror("Missing control char name in \\c"); | |
2984 | } | |
79072805 | 2985 | continue; |
02aa26ce NT |
2986 | |
2987 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 | 2988 | case 'b': |
db42d148 | 2989 | *d++ = NATIVE_TO_NEED(has_utf8,'\b'); |
79072805 LW |
2990 | break; |
2991 | case 'n': | |
db42d148 | 2992 | *d++ = NATIVE_TO_NEED(has_utf8,'\n'); |
79072805 LW |
2993 | break; |
2994 | case 'r': | |
db42d148 | 2995 | *d++ = NATIVE_TO_NEED(has_utf8,'\r'); |
79072805 LW |
2996 | break; |
2997 | case 'f': | |
db42d148 | 2998 | *d++ = NATIVE_TO_NEED(has_utf8,'\f'); |
79072805 LW |
2999 | break; |
3000 | case 't': | |
db42d148 | 3001 | *d++ = NATIVE_TO_NEED(has_utf8,'\t'); |
79072805 | 3002 | break; |
34a3fe2a | 3003 | case 'e': |
db42d148 | 3004 | *d++ = ASCII_TO_NEED(has_utf8,'\033'); |
34a3fe2a PP |
3005 | break; |
3006 | case 'a': | |
db42d148 | 3007 | *d++ = ASCII_TO_NEED(has_utf8,'\007'); |
79072805 | 3008 | break; |
02aa26ce NT |
3009 | } /* end switch */ |
3010 | ||
79072805 LW |
3011 | s++; |
3012 | continue; | |
02aa26ce | 3013 | } /* end if (backslash) */ |
4c3a8340 TS |
3014 | #ifdef EBCDIC |
3015 | else | |
3016 | literal_endpoint++; | |
3017 | #endif | |
02aa26ce | 3018 | |
f9a63242 | 3019 | default_action: |
77a135fe KW |
3020 | /* If we started with encoded form, or already know we want it, |
3021 | then encode the next character */ | |
3022 | if (! NATIVE_IS_INVARIANT((U8)(*s)) && (this_utf8 || has_utf8)) { | |
2b9d42f0 | 3023 | STRLEN len = 1; |
77a135fe KW |
3024 | |
3025 | ||
3026 | /* One might think that it is wasted effort in the case of the | |
3027 | * source being utf8 (this_utf8 == TRUE) to take the next character | |
3028 | * in the source, convert it to an unsigned value, and then convert | |
3029 | * it back again. But the source has not been validated here. The | |
3030 | * routine that does the conversion checks for errors like | |
3031 | * malformed utf8 */ | |
3032 | ||
5f66b61c AL |
3033 | const UV nextuv = (this_utf8) ? utf8n_to_uvchr((U8*)s, send - s, &len, 0) : (UV) ((U8) *s); |
3034 | const STRLEN need = UNISKIP(NATIVE_TO_UNI(nextuv)); | |
77a135fe KW |
3035 | if (!has_utf8) { |
3036 | SvCUR_set(sv, d - SvPVX_const(sv)); | |
3037 | SvPOK_on(sv); | |
3038 | *d = '\0'; | |
77a135fe | 3039 | /* See Note on sizing above. */ |
7bf79863 KW |
3040 | sv_utf8_upgrade_flags_grow(sv, |
3041 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
3042 | need + (STRLEN)(send - s) + 1); | |
77a135fe KW |
3043 | d = SvPVX(sv) + SvCUR(sv); |
3044 | has_utf8 = TRUE; | |
3045 | } else if (need > len) { | |
3046 | /* encoded value larger than old, may need extra space (NOTE: | |
3047 | * SvCUR() is not set correctly here). See Note on sizing | |
3048 | * above. */ | |
9d4ba2ae | 3049 | const STRLEN off = d - SvPVX_const(sv); |
77a135fe | 3050 | d = SvGROW(sv, off + need + (STRLEN)(send - s) + 1) + off; |
2b9d42f0 | 3051 | } |
77a135fe KW |
3052 | s += len; |
3053 | ||
5f66b61c | 3054 | d = (char*)uvchr_to_utf8((U8*)d, nextuv); |
e294cc5d JH |
3055 | #ifdef EBCDIC |
3056 | if (uv > 255 && !dorange) | |
3057 | native_range = FALSE; | |
3058 | #endif | |
2b9d42f0 NIS |
3059 | } |
3060 | else { | |
3061 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
3062 | } | |
02aa26ce NT |
3063 | } /* while loop to process each character */ |
3064 | ||
3065 | /* terminate the string and set up the sv */ | |
79072805 | 3066 | *d = '\0'; |
95a20fc0 | 3067 | SvCUR_set(sv, d - SvPVX_const(sv)); |
2b9d42f0 | 3068 | if (SvCUR(sv) >= SvLEN(sv)) |
d0063567 | 3069 | Perl_croak(aTHX_ "panic: constant overflowed allocated space"); |
2b9d42f0 | 3070 | |
79072805 | 3071 | SvPOK_on(sv); |
9f4817db | 3072 | if (PL_encoding && !has_utf8) { |
d0063567 DK |
3073 | sv_recode_to_utf8(sv, PL_encoding); |
3074 | if (SvUTF8(sv)) | |
3075 | has_utf8 = TRUE; | |
9f4817db | 3076 | } |
2b9d42f0 | 3077 | if (has_utf8) { |
7e2040f0 | 3078 | SvUTF8_on(sv); |
2b9d42f0 | 3079 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
d0063567 | 3080 | PL_sublex_info.sub_op->op_private |= |
2b9d42f0 NIS |
3081 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); |
3082 | } | |
3083 | } | |
79072805 | 3084 | |
02aa26ce | 3085 | /* shrink the sv if we allocated more than we used */ |
79072805 | 3086 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
1da4ca5f | 3087 | SvPV_shrink_to_cur(sv); |
79072805 | 3088 | } |
02aa26ce | 3089 | |
6154021b | 3090 | /* return the substring (via pl_yylval) only if we parsed anything */ |
3280af22 | 3091 | if (s > PL_bufptr) { |
eb0d8d16 NC |
3092 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) { |
3093 | const char *const key = PL_lex_inpat ? "qr" : "q"; | |
3094 | const STRLEN keylen = PL_lex_inpat ? 2 : 1; | |
3095 | const char *type; | |
3096 | STRLEN typelen; | |
3097 | ||
3098 | if (PL_lex_inwhat == OP_TRANS) { | |
3099 | type = "tr"; | |
3100 | typelen = 2; | |
3101 | } else if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) { | |
3102 | type = "s"; | |
3103 | typelen = 1; | |
3104 | } else { | |
3105 | type = "qq"; | |
3106 | typelen = 2; | |
3107 | } | |
3108 | ||
3109 | sv = S_new_constant(aTHX_ start, s - start, key, keylen, sv, NULL, | |
3110 | type, typelen); | |
3111 | } | |
6154021b | 3112 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 3113 | } else |
8990e307 | 3114 | SvREFCNT_dec(sv); |
79072805 LW |
3115 | return s; |
3116 | } | |
3117 | ||
ffb4593c NT |
3118 | /* S_intuit_more |
3119 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
3120 | * FALSE otherwise. | |
ffb4593c NT |
3121 | * |
3122 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
3123 | * | |
3124 | * ->[ and ->{ return TRUE | |
3125 | * { and [ outside a pattern are always subscripts, so return TRUE | |
3126 | * if we're outside a pattern and it's not { or [, then return FALSE | |
3127 | * if we're in a pattern and the first char is a { | |
3128 | * {4,5} (any digits around the comma) returns FALSE | |
3129 | * if we're in a pattern and the first char is a [ | |
3130 | * [] returns FALSE | |
3131 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
3132 | * character class or not. It has to deal with things like | |
3133 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
3134 | * anything else returns TRUE | |
3135 | */ | |
3136 | ||
9cbb5ea2 GS |
3137 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
3138 | ||
76e3520e | 3139 | STATIC int |
cea2e8a9 | 3140 | S_intuit_more(pTHX_ register char *s) |
79072805 | 3141 | { |
97aff369 | 3142 | dVAR; |
7918f24d NC |
3143 | |
3144 | PERL_ARGS_ASSERT_INTUIT_MORE; | |
3145 | ||
3280af22 | 3146 | if (PL_lex_brackets) |
79072805 LW |
3147 | return TRUE; |
3148 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
3149 | return TRUE; | |
3150 | if (*s != '{' && *s != '[') | |
3151 | return FALSE; | |
3280af22 | 3152 | if (!PL_lex_inpat) |
79072805 LW |
3153 | return TRUE; |
3154 | ||
3155 | /* In a pattern, so maybe we have {n,m}. */ | |
3156 | if (*s == '{') { | |
3157 | s++; | |
3158 | if (!isDIGIT(*s)) | |
3159 | return TRUE; | |
3160 | while (isDIGIT(*s)) | |
3161 | s++; | |
3162 | if (*s == ',') | |
3163 | s++; | |
3164 | while (isDIGIT(*s)) | |
3165 | s++; | |
3166 | if (*s == '}') | |
3167 | return FALSE; | |
3168 | return TRUE; | |
3169 | ||
3170 | } | |
3171 | ||
3172 | /* On the other hand, maybe we have a character class */ | |
3173 | ||
3174 | s++; | |
3175 | if (*s == ']' || *s == '^') | |
3176 | return FALSE; | |
3177 | else { | |
ffb4593c | 3178 | /* this is terrifying, and it works */ |
79072805 LW |
3179 | int weight = 2; /* let's weigh the evidence */ |
3180 | char seen[256]; | |
f27ffc4a | 3181 | unsigned char un_char = 255, last_un_char; |
9d4ba2ae | 3182 | const char * const send = strchr(s,']'); |
3280af22 | 3183 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
3184 | |
3185 | if (!send) /* has to be an expression */ | |
3186 | return TRUE; | |
3187 | ||
3188 | Zero(seen,256,char); | |
3189 | if (*s == '$') | |
3190 | weight -= 3; | |
3191 | else if (isDIGIT(*s)) { | |
3192 | if (s[1] != ']') { | |
3193 | if (isDIGIT(s[1]) && s[2] == ']') | |
3194 | weight -= 10; | |
3195 | } | |
3196 | else | |
3197 | weight -= 100; | |
3198 | } | |
3199 | for (; s < send; s++) { | |
3200 | last_un_char = un_char; | |
3201 | un_char = (unsigned char)*s; | |
3202 | switch (*s) { | |
3203 | case '@': | |
3204 | case '&': | |
3205 | case '$': | |
3206 | weight -= seen[un_char] * 10; | |
7e2040f0 | 3207 | if (isALNUM_lazy_if(s+1,UTF)) { |
90e5519e | 3208 | int len; |
8903cb82 | 3209 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
90e5519e NC |
3210 | len = (int)strlen(tmpbuf); |
3211 | if (len > 1 && gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PV)) | |
79072805 LW |
3212 | weight -= 100; |
3213 | else | |
3214 | weight -= 10; | |
3215 | } | |
3216 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
3217 | strchr("[#!%*<>()-=",s[1])) { |
3218 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
3219 | weight -= 10; |
3220 | else | |
3221 | weight -= 1; | |
3222 | } | |
3223 | break; | |
3224 | case '\\': | |
3225 | un_char = 254; | |
3226 | if (s[1]) { | |
93a17b20 | 3227 | if (strchr("wds]",s[1])) |
79072805 | 3228 | weight += 100; |
10edeb5d | 3229 | else if (seen[(U8)'\''] || seen[(U8)'"']) |
79072805 | 3230 | weight += 1; |
93a17b20 | 3231 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
3232 | weight += 40; |
3233 | else if (isDIGIT(s[1])) { | |
3234 | weight += 40; | |
3235 | while (s[1] && isDIGIT(s[1])) | |
3236 | s++; | |
3237 | } | |
3238 | } | |
3239 | else | |
3240 | weight += 100; | |
3241 | break; | |
3242 | case '-': | |
3243 | if (s[1] == '\\') | |
3244 | weight += 50; | |
93a17b20 | 3245 | if (strchr("aA01! ",last_un_char)) |
79072805 | 3246 | weight += 30; |
93a17b20 | 3247 | if (strchr("zZ79~",s[1])) |
79072805 | 3248 | weight += 30; |
f27ffc4a GS |
3249 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
3250 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
3251 | break; |
3252 | default: | |
3792a11b NC |
3253 | if (!isALNUM(last_un_char) |
3254 | && !(last_un_char == '$' || last_un_char == '@' | |
3255 | || last_un_char == '&') | |
3256 | && isALPHA(*s) && s[1] && isALPHA(s[1])) { | |
79072805 LW |
3257 | char *d = tmpbuf; |
3258 | while (isALPHA(*s)) | |
3259 | *d++ = *s++; | |
3260 | *d = '\0'; | |
5458a98a | 3261 | if (keyword(tmpbuf, d - tmpbuf, 0)) |
79072805 LW |
3262 | weight -= 150; |
3263 | } | |
3264 | if (un_char == last_un_char + 1) | |
3265 | weight += 5; | |
3266 | weight -= seen[un_char]; | |
3267 | break; | |
3268 | } | |
3269 | seen[un_char]++; | |
3270 | } | |
3271 | if (weight >= 0) /* probably a character class */ | |
3272 | return FALSE; | |
3273 | } | |
3274 | ||
3275 | return TRUE; | |
3276 | } | |
ffed7fef | 3277 | |
ffb4593c NT |
3278 | /* |
3279 | * S_intuit_method | |
3280 | * | |
3281 | * Does all the checking to disambiguate | |
3282 | * foo bar | |
3283 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
3284 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
3285 | * | |
3286 | * First argument is the stuff after the first token, e.g. "bar". | |
3287 | * | |
3288 | * Not a method if bar is a filehandle. | |
3289 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
3290 | * Not a method if it's really "Foo $bar" | |
3291 | * Method if it's "foo $bar" | |
3292 | * Not a method if it's really "print foo $bar" | |
3293 | * Method if it's really "foo package::" (interpreted as package->foo) | |
8f8cf39c | 3294 | * Not a method if bar is known to be a subroutine ("sub bar; foo bar") |
3cb0bbe5 | 3295 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
3296 | * => |
3297 | */ | |
3298 | ||
76e3520e | 3299 | STATIC int |
62d55b22 | 3300 | S_intuit_method(pTHX_ char *start, GV *gv, CV *cv) |
a0d0e21e | 3301 | { |
97aff369 | 3302 | dVAR; |
a0d0e21e | 3303 | char *s = start + (*start == '$'); |
3280af22 | 3304 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
3305 | STRLEN len; |
3306 | GV* indirgv; | |
5db06880 NC |
3307 | #ifdef PERL_MAD |
3308 | int soff; | |
3309 | #endif | |
a0d0e21e | 3310 | |
7918f24d NC |
3311 | PERL_ARGS_ASSERT_INTUIT_METHOD; |
3312 | ||
a0d0e21e | 3313 | if (gv) { |
62d55b22 | 3314 | if (SvTYPE(gv) == SVt_PVGV && GvIO(gv)) |
a0d0e21e | 3315 | return 0; |
62d55b22 NC |
3316 | if (cv) { |
3317 | if (SvPOK(cv)) { | |
3318 | const char *proto = SvPVX_const(cv); | |
3319 | if (proto) { | |
3320 | if (*proto == ';') | |
3321 | proto++; | |
3322 | if (*proto == '*') | |
3323 | return 0; | |
3324 | } | |
b6c543e3 IZ |
3325 | } |
3326 | } else | |
c35e046a | 3327 | gv = NULL; |
a0d0e21e | 3328 | } |
8903cb82 | 3329 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
3330 | /* start is the beginning of the possible filehandle/object, |
3331 | * and s is the end of it | |
3332 | * tmpbuf is a copy of it | |
3333 | */ | |
3334 | ||
a0d0e21e | 3335 | if (*start == '$') { |
3ef1310e RGS |
3336 | if (gv || PL_last_lop_op == OP_PRINT || PL_last_lop_op == OP_SAY || |
3337 | isUPPER(*PL_tokenbuf)) | |
a0d0e21e | 3338 | return 0; |
5db06880 NC |
3339 | #ifdef PERL_MAD |
3340 | len = start - SvPVX(PL_linestr); | |
3341 | #endif | |
29595ff2 | 3342 | s = PEEKSPACE(s); |
f0092767 | 3343 | #ifdef PERL_MAD |
5db06880 NC |
3344 | start = SvPVX(PL_linestr) + len; |
3345 | #endif | |
3280af22 NIS |
3346 | PL_bufptr = start; |
3347 | PL_expect = XREF; | |
a0d0e21e LW |
3348 | return *s == '(' ? FUNCMETH : METHOD; |
3349 | } | |
5458a98a | 3350 | if (!keyword(tmpbuf, len, 0)) { |
c3e0f903 GS |
3351 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
3352 | len -= 2; | |
3353 | tmpbuf[len] = '\0'; | |
5db06880 NC |
3354 | #ifdef PERL_MAD |
3355 | soff = s - SvPVX(PL_linestr); | |
3356 | #endif | |
c3e0f903 GS |
3357 | goto bare_package; |
3358 | } | |
90e5519e | 3359 | indirgv = gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PVCV); |
8ebc5c01 | 3360 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
3361 | return 0; |
3362 | /* filehandle or package name makes it a method */ | |
da51bb9b | 3363 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, 0)) { |
5db06880 NC |
3364 | #ifdef PERL_MAD |
3365 | soff = s - SvPVX(PL_linestr); | |
3366 | #endif | |
29595ff2 | 3367 | s = PEEKSPACE(s); |
3280af22 | 3368 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 3369 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 3370 | bare_package: |
cd81e915 | 3371 | start_force(PL_curforce); |
9ded7720 | 3372 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, |
64142370 | 3373 | S_newSV_maybe_utf8(aTHX_ tmpbuf, len)); |
9ded7720 | 3374 | NEXTVAL_NEXTTOKE.opval->op_private = OPpCONST_BARE; |
5db06880 NC |
3375 | if (PL_madskills) |
3376 | curmad('X', newSVpvn(start,SvPVX(PL_linestr) + soff - start)); | |
3280af22 | 3377 | PL_expect = XTERM; |
a0d0e21e | 3378 | force_next(WORD); |
3280af22 | 3379 | PL_bufptr = s; |
5db06880 NC |
3380 | #ifdef PERL_MAD |
3381 | PL_bufptr = SvPVX(PL_linestr) + soff; /* restart before space */ | |
3382 | #endif | |
a0d0e21e LW |
3383 | return *s == '(' ? FUNCMETH : METHOD; |
3384 | } | |
3385 | } | |
3386 | return 0; | |
3387 | } | |
3388 | ||
16d20bd9 | 3389 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 3390 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
3391 | * Note that the filter function only applies to the current source file |
3392 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
3393 | * | |
3394 | * The datasv parameter (which may be NULL) can be used to pass | |
3395 | * private data to this instance of the filter. The filter function | |
3396 | * can recover the SV using the FILTER_DATA macro and use it to | |
3397 | * store private buffers and state information. | |
3398 | * | |
3399 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 3400 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 3401 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
3402 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
3403 | * private use must be set using malloc'd pointers. | |
3404 | */ | |
16d20bd9 AD |
3405 | |
3406 | SV * | |
864dbfa3 | 3407 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 3408 | { |
97aff369 | 3409 | dVAR; |
f4c556ac | 3410 | if (!funcp) |
a0714e2c | 3411 | return NULL; |
f4c556ac | 3412 | |
5486870f DM |
3413 | if (!PL_parser) |
3414 | return NULL; | |
3415 | ||
3280af22 NIS |
3416 | if (!PL_rsfp_filters) |
3417 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 3418 | if (!datasv) |
561b68a9 | 3419 | datasv = newSV(0); |
862a34c6 | 3420 | SvUPGRADE(datasv, SVt_PVIO); |
8141890a | 3421 | IoANY(datasv) = FPTR2DPTR(void *, funcp); /* stash funcp into spare field */ |
e0c19803 | 3422 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac | 3423 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
55662e27 JH |
3424 | FPTR2DPTR(void *, IoANY(datasv)), |
3425 | SvPV_nolen(datasv))); | |
3280af22 NIS |
3426 | av_unshift(PL_rsfp_filters, 1); |
3427 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
3428 | return(datasv); |
3429 | } | |
4e553d73 | 3430 | |
16d20bd9 AD |
3431 | |
3432 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 3433 | void |
864dbfa3 | 3434 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 3435 | { |
97aff369 | 3436 | dVAR; |
e0c19803 | 3437 | SV *datasv; |
24801a4b | 3438 | |
7918f24d NC |
3439 | PERL_ARGS_ASSERT_FILTER_DEL; |
3440 | ||
33073adb | 3441 | #ifdef DEBUGGING |
55662e27 JH |
3442 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", |
3443 | FPTR2DPTR(void*, funcp))); | |
33073adb | 3444 | #endif |
5486870f | 3445 | if (!PL_parser || !PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
3446 | return; |
3447 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 3448 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
8141890a | 3449 | if (IoANY(datasv) == FPTR2DPTR(void *, funcp)) { |
e0c19803 | 3450 | IoFLAGS(datasv) &= ~IOf_FAKE_DIRP; |
4755096e | 3451 | IoANY(datasv) = (void *)NULL; |
3280af22 | 3452 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 3453 | |
16d20bd9 AD |
3454 | return; |
3455 | } | |
3456 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 3457 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
3458 | } |
3459 | ||
3460 | ||
1de9afcd RGS |
3461 | /* Invoke the idxth filter function for the current rsfp. */ |
3462 | /* maxlen 0 = read one text line */ | |
16d20bd9 | 3463 | I32 |
864dbfa3 | 3464 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
a0d0e21e | 3465 | { |
97aff369 | 3466 | dVAR; |
16d20bd9 AD |
3467 | filter_t funcp; |
3468 | SV *datasv = NULL; | |
f482118e NC |
3469 | /* This API is bad. It should have been using unsigned int for maxlen. |
3470 | Not sure if we want to change the API, but if not we should sanity | |
3471 | check the value here. */ | |
39cd7a59 NC |
3472 | const unsigned int correct_length |
3473 | = maxlen < 0 ? | |
3474 | #ifdef PERL_MICRO | |
3475 | 0x7FFFFFFF | |
3476 | #else | |
3477 | INT_MAX | |
3478 | #endif | |
3479 | : maxlen; | |
e50aee73 | 3480 | |
7918f24d NC |
3481 | PERL_ARGS_ASSERT_FILTER_READ; |
3482 | ||
5486870f | 3483 | if (!PL_parser || !PL_rsfp_filters) |
16d20bd9 | 3484 | return -1; |
1de9afcd | 3485 | if (idx > AvFILLp(PL_rsfp_filters)) { /* Any more filters? */ |
16d20bd9 AD |
3486 | /* Provide a default input filter to make life easy. */ |
3487 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
3488 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3489 | "filter_read %d: from rsfp\n", idx)); | |
f482118e | 3490 | if (correct_length) { |
16d20bd9 AD |
3491 | /* Want a block */ |
3492 | int len ; | |
f54cb97a | 3493 | const int old_len = SvCUR(buf_sv); |
16d20bd9 AD |
3494 | |
3495 | /* ensure buf_sv is large enough */ | |
881d8f0a | 3496 | SvGROW(buf_sv, (STRLEN)(old_len + correct_length + 1)) ; |
f482118e NC |
3497 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, |
3498 | correct_length)) <= 0) { | |
3280af22 | 3499 | if (PerlIO_error(PL_rsfp)) |
37120919 AD |
3500 | return -1; /* error */ |
3501 | else | |
3502 | return 0 ; /* end of file */ | |
3503 | } | |
16d20bd9 | 3504 | SvCUR_set(buf_sv, old_len + len) ; |
881d8f0a | 3505 | SvPVX(buf_sv)[old_len + len] = '\0'; |
16d20bd9 AD |
3506 | } else { |
3507 | /* Want a line */ | |
3280af22 NIS |
3508 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
3509 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
3510 | return -1; /* error */ |
3511 | else | |
3512 | return 0 ; /* end of file */ | |
3513 | } | |
16d20bd9 AD |
3514 | } |
3515 | return SvCUR(buf_sv); | |
3516 | } | |
3517 | /* Skip this filter slot if filter has been deleted */ | |
1de9afcd | 3518 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef) { |
f4c556ac GS |
3519 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3520 | "filter_read %d: skipped (filter deleted)\n", | |
3521 | idx)); | |
f482118e | 3522 | return FILTER_READ(idx+1, buf_sv, correct_length); /* recurse */ |
16d20bd9 AD |
3523 | } |
3524 | /* Get function pointer hidden within datasv */ | |
8141890a | 3525 | funcp = DPTR2FPTR(filter_t, IoANY(datasv)); |
f4c556ac GS |
3526 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3527 | "filter_read %d: via function %p (%s)\n", | |
ca0270c4 | 3528 | idx, (void*)datasv, SvPV_nolen_const(datasv))); |
16d20bd9 AD |
3529 | /* Call function. The function is expected to */ |
3530 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 3531 | /* Return: <0:error, =0:eof, >0:not eof */ |
f482118e | 3532 | return (*funcp)(aTHX_ idx, buf_sv, correct_length); |
16d20bd9 AD |
3533 | } |
3534 | ||
76e3520e | 3535 | STATIC char * |
5cc814fd | 3536 | S_filter_gets(pTHX_ register SV *sv, STRLEN append) |
16d20bd9 | 3537 | { |
97aff369 | 3538 | dVAR; |
7918f24d NC |
3539 | |
3540 | PERL_ARGS_ASSERT_FILTER_GETS; | |
3541 | ||
c39cd008 | 3542 | #ifdef PERL_CR_FILTER |
3280af22 | 3543 | if (!PL_rsfp_filters) { |
c39cd008 | 3544 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
3545 | } |
3546 | #endif | |
3280af22 | 3547 | if (PL_rsfp_filters) { |
55497cff | 3548 | if (!append) |
3549 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
3550 | if (FILTER_READ(0, sv, 0) > 0) |
3551 | return ( SvPVX(sv) ) ; | |
3552 | else | |
bd61b366 | 3553 | return NULL ; |
16d20bd9 | 3554 | } |
9d116dd7 | 3555 | else |
5cc814fd | 3556 | return (sv_gets(sv, PL_rsfp, append)); |
a0d0e21e LW |
3557 | } |
3558 | ||
01ec43d0 | 3559 | STATIC HV * |
9bde8eb0 | 3560 | S_find_in_my_stash(pTHX_ const char *pkgname, STRLEN len) |
def3634b | 3561 | { |
97aff369 | 3562 | dVAR; |
def3634b GS |
3563 | GV *gv; |
3564 | ||
7918f24d NC |
3565 | PERL_ARGS_ASSERT_FIND_IN_MY_STASH; |
3566 | ||
01ec43d0 | 3567 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
3568 | return PL_curstash; |
3569 | ||
3570 | if (len > 2 && | |
3571 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
90e5519e | 3572 | (gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVHV))) |
01ec43d0 GS |
3573 | { |
3574 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
3575 | } |
3576 | ||
3577 | /* use constant CLASS => 'MyClass' */ | |
c35e046a AL |
3578 | gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVCV); |
3579 | if (gv && GvCV(gv)) { | |
3580 | SV * const sv = cv_const_sv(GvCV(gv)); | |
3581 | if (sv) | |
9bde8eb0 | 3582 | pkgname = SvPV_const(sv, len); |
def3634b GS |
3583 | } |
3584 | ||
9bde8eb0 | 3585 | return gv_stashpvn(pkgname, len, 0); |
def3634b | 3586 | } |
a0d0e21e | 3587 | |
e3f73d4e RGS |
3588 | /* |
3589 | * S_readpipe_override | |
3590 | * Check whether readpipe() is overriden, and generates the appropriate | |
3591 | * optree, provided sublex_start() is called afterwards. | |
3592 | */ | |
3593 | STATIC void | |
1d51329b | 3594 | S_readpipe_override(pTHX) |
e3f73d4e RGS |
3595 | { |
3596 | GV **gvp; | |
3597 | GV *gv_readpipe = gv_fetchpvs("readpipe", GV_NOTQUAL, SVt_PVCV); | |
6154021b | 3598 | pl_yylval.ival = OP_BACKTICK; |
e3f73d4e RGS |
3599 | if ((gv_readpipe |
3600 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe)) | |
3601 | || | |
3602 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readpipe", FALSE)) | |
d5e716f5 | 3603 | && (gv_readpipe = *gvp) && isGV_with_GP(gv_readpipe) |
e3f73d4e RGS |
3604 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe))) |
3605 | { | |
3606 | PL_lex_op = (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
3607 | append_elem(OP_LIST, | |
3608 | newSVOP(OP_CONST, 0, &PL_sv_undef), /* value will be read later */ | |
3609 | newCVREF(0, newGVOP(OP_GV, 0, gv_readpipe)))); | |
3610 | } | |
e3f73d4e RGS |
3611 | } |
3612 | ||
5db06880 NC |
3613 | #ifdef PERL_MAD |
3614 | /* | |
3615 | * Perl_madlex | |
3616 | * The intent of this yylex wrapper is to minimize the changes to the | |
3617 | * tokener when we aren't interested in collecting madprops. It remains | |
3618 | * to be seen how successful this strategy will be... | |
3619 | */ | |
3620 | ||
3621 | int | |
3622 | Perl_madlex(pTHX) | |
3623 | { | |
3624 | int optype; | |
3625 | char *s = PL_bufptr; | |
3626 | ||
cd81e915 NC |
3627 | /* make sure PL_thiswhite is initialized */ |
3628 | PL_thiswhite = 0; | |
3629 | PL_thismad = 0; | |
5db06880 | 3630 | |
cd81e915 | 3631 | /* just do what yylex would do on pending identifier; leave PL_thiswhite alone */ |
5db06880 NC |
3632 | if (PL_pending_ident) |
3633 | return S_pending_ident(aTHX); | |
3634 | ||
3635 | /* previous token ate up our whitespace? */ | |
cd81e915 NC |
3636 | if (!PL_lasttoke && PL_nextwhite) { |
3637 | PL_thiswhite = PL_nextwhite; | |
3638 | PL_nextwhite = 0; | |
5db06880 NC |
3639 | } |
3640 | ||
3641 | /* isolate the token, and figure out where it is without whitespace */ | |
cd81e915 NC |
3642 | PL_realtokenstart = -1; |
3643 | PL_thistoken = 0; | |
5db06880 NC |
3644 | optype = yylex(); |
3645 | s = PL_bufptr; | |
cd81e915 | 3646 | assert(PL_curforce < 0); |
5db06880 | 3647 | |
cd81e915 NC |
3648 | if (!PL_thismad || PL_thismad->mad_key == '^') { /* not forced already? */ |
3649 | if (!PL_thistoken) { | |
3650 | if (PL_realtokenstart < 0 || !CopLINE(PL_curcop)) | |
6b29d1f5 | 3651 | PL_thistoken = newSVpvs(""); |
5db06880 | 3652 | else { |
c35e046a | 3653 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 | 3654 | PL_thistoken = newSVpvn(tstart, s - tstart); |
5db06880 NC |
3655 | } |
3656 | } | |
cd81e915 NC |
3657 | if (PL_thismad) /* install head */ |
3658 | CURMAD('X', PL_thistoken); | |
5db06880 NC |
3659 | } |
3660 | ||
3661 | /* last whitespace of a sublex? */ | |
cd81e915 NC |
3662 | if (optype == ')' && PL_endwhite) { |
3663 | CURMAD('X', PL_endwhite); | |
5db06880 NC |
3664 | } |
3665 | ||
cd81e915 | 3666 | if (!PL_thismad) { |
5db06880 NC |
3667 | |
3668 | /* if no whitespace and we're at EOF, bail. Otherwise fake EOF below. */ | |
cd81e915 NC |
3669 | if (!PL_thiswhite && !PL_endwhite && !optype) { |
3670 | sv_free(PL_thistoken); | |
3671 | PL_thistoken = 0; | |
5db06880 NC |
3672 | return 0; |
3673 | } | |
3674 | ||
3675 | /* put off final whitespace till peg */ | |
3676 | if (optype == ';' && !PL_rsfp) { | |
cd81e915 NC |
3677 | PL_nextwhite = PL_thiswhite; |
3678 | PL_thiswhite = 0; | |
5db06880 | 3679 | } |
cd81e915 NC |
3680 | else if (PL_thisopen) { |
3681 | CURMAD('q', PL_thisopen); | |
3682 | if (PL_thistoken) | |
3683 | sv_free(PL_thistoken); | |
3684 | PL_thistoken = 0; | |
5db06880 NC |
3685 | } |
3686 | else { | |
3687 | /* Store actual token text as madprop X */ | |
cd81e915 | 3688 | CURMAD('X', PL_thistoken); |
5db06880 NC |
3689 | } |
3690 | ||
cd81e915 | 3691 | if (PL_thiswhite) { |
5db06880 | 3692 | /* add preceding whitespace as madprop _ */ |
cd81e915 | 3693 | CURMAD('_', PL_thiswhite); |
5db06880 NC |
3694 | } |
3695 | ||
cd81e915 | 3696 | if (PL_thisstuff) { |
5db06880 | 3697 | /* add quoted material as madprop = */ |
cd81e915 | 3698 | CURMAD('=', PL_thisstuff); |
5db06880 NC |
3699 | } |
3700 | ||
cd81e915 | 3701 | if (PL_thisclose) { |
5db06880 | 3702 | /* add terminating quote as madprop Q */ |
cd81e915 | 3703 | CURMAD('Q', PL_thisclose); |
5db06880 NC |
3704 | } |
3705 | } | |
3706 | ||
3707 | /* special processing based on optype */ | |
3708 | ||
3709 | switch (optype) { | |
3710 | ||
3711 | /* opval doesn't need a TOKEN since it can already store mp */ | |
3712 | case WORD: | |
3713 | case METHOD: | |
3714 | case FUNCMETH: | |
3715 | case THING: | |
3716 | case PMFUNC: | |
3717 | case PRIVATEREF: | |
3718 | case FUNC0SUB: | |
3719 | case UNIOPSUB: | |
3720 | case LSTOPSUB: | |
6154021b RGS |
3721 | if (pl_yylval.opval) |
3722 | append_madprops(PL_thismad, pl_yylval.opval, 0); | |
cd81e915 | 3723 | PL_thismad = 0; |
5db06880 NC |
3724 | return optype; |
3725 | ||
3726 | /* fake EOF */ | |
3727 | case 0: | |
3728 | optype = PEG; | |
cd81e915 NC |
3729 | if (PL_endwhite) { |
3730 | addmad(newMADsv('p', PL_endwhite), &PL_thismad, 0); | |
3731 | PL_endwhite = 0; | |
5db06880 NC |
3732 | } |
3733 | break; | |
3734 | ||
3735 | case ']': | |
3736 | case '}': | |
cd81e915 | 3737 | if (PL_faketokens) |
5db06880 NC |
3738 | break; |
3739 | /* remember any fake bracket that lexer is about to discard */ | |
3740 | if (PL_lex_brackets == 1 && | |
3741 | ((expectation)PL_lex_brackstack[0] & XFAKEBRACK)) | |
3742 | { | |
3743 | s = PL_bufptr; | |
3744 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
3745 | s++; | |
3746 | if (*s == '}') { | |
cd81e915 NC |
3747 | PL_thiswhite = newSVpvn(PL_bufptr, ++s - PL_bufptr); |
3748 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3749 | PL_thiswhite = 0; | |
5db06880 NC |
3750 | PL_bufptr = s - 1; |
3751 | break; /* don't bother looking for trailing comment */ | |
3752 | } | |
3753 | else | |
3754 | s = PL_bufptr; | |
3755 | } | |
3756 | if (optype == ']') | |
3757 | break; | |
3758 | /* FALLTHROUGH */ | |
3759 | ||
3760 | /* attach a trailing comment to its statement instead of next token */ | |
3761 | case ';': | |
cd81e915 | 3762 | if (PL_faketokens) |
5db06880 NC |
3763 | break; |
3764 | if (PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == optype) { | |
3765 | s = PL_bufptr; | |
3766 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
3767 | s++; | |
3768 | if (*s == '\n' || *s == '#') { | |
3769 | while (s < PL_bufend && *s != '\n') | |
3770 | s++; | |
3771 | if (s < PL_bufend) | |
3772 | s++; | |
cd81e915 NC |
3773 | PL_thiswhite = newSVpvn(PL_bufptr, s - PL_bufptr); |
3774 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3775 | PL_thiswhite = 0; | |
5db06880 NC |
3776 | PL_bufptr = s; |
3777 | } | |
3778 | } | |
3779 | break; | |
3780 | ||
3781 | /* pval */ | |
3782 | case LABEL: | |
3783 | break; | |
3784 | ||
3785 | /* ival */ | |
3786 | default: | |
3787 | break; | |
3788 | ||
3789 | } | |
3790 | ||
3791 | /* Create new token struct. Note: opvals return early above. */ | |
6154021b | 3792 | pl_yylval.tkval = newTOKEN(optype, pl_yylval, PL_thismad); |
cd81e915 | 3793 | PL_thismad = 0; |
5db06880 NC |
3794 | return optype; |
3795 | } | |
3796 | #endif | |
3797 | ||
468aa647 | 3798 | STATIC char * |
cc6ed77d | 3799 | S_tokenize_use(pTHX_ int is_use, char *s) { |
97aff369 | 3800 | dVAR; |
7918f24d NC |
3801 | |
3802 | PERL_ARGS_ASSERT_TOKENIZE_USE; | |
3803 | ||
468aa647 RGS |
3804 | if (PL_expect != XSTATE) |
3805 | yyerror(Perl_form(aTHX_ "\"%s\" not allowed in expression", | |
3806 | is_use ? "use" : "no")); | |
29595ff2 | 3807 | s = SKIPSPACE1(s); |
468aa647 RGS |
3808 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { |
3809 | s = force_version(s, TRUE); | |
17c59fdf VP |
3810 | if (*s == ';' || *s == '}' |
3811 | || (s = SKIPSPACE1(s), (*s == ';' || *s == '}'))) { | |
cd81e915 | 3812 | start_force(PL_curforce); |
9ded7720 | 3813 | NEXTVAL_NEXTTOKE.opval = NULL; |
468aa647 RGS |
3814 | force_next(WORD); |
3815 | } | |
3816 | else if (*s == 'v') { | |
3817 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3818 | s = force_version(s, FALSE); | |
3819 | } | |
3820 | } | |
3821 | else { | |
3822 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3823 | s = force_version(s, FALSE); | |
3824 | } | |
6154021b | 3825 | pl_yylval.ival = is_use; |
468aa647 RGS |
3826 | return s; |
3827 | } | |
748a9306 | 3828 | #ifdef DEBUGGING |
27da23d5 | 3829 | static const char* const exp_name[] = |
09bef843 | 3830 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
27308ded | 3831 | "ATTRTERM", "TERMBLOCK", "TERMORDORDOR" |
09bef843 | 3832 | }; |
748a9306 | 3833 | #endif |
463ee0b2 | 3834 | |
02aa26ce NT |
3835 | /* |
3836 | yylex | |
3837 | ||
3838 | Works out what to call the token just pulled out of the input | |
3839 | stream. The yacc parser takes care of taking the ops we return and | |
3840 | stitching them into a tree. | |
3841 | ||
3842 | Returns: | |
3843 | PRIVATEREF | |
3844 | ||
3845 | Structure: | |
3846 | if read an identifier | |
3847 | if we're in a my declaration | |
3848 | croak if they tried to say my($foo::bar) | |
3849 | build the ops for a my() declaration | |
3850 | if it's an access to a my() variable | |
3851 | are we in a sort block? | |
3852 | croak if my($a); $a <=> $b | |
3853 | build ops for access to a my() variable | |
3854 | if in a dq string, and they've said @foo and we can't find @foo | |
3855 | croak | |
3856 | build ops for a bareword | |
3857 | if we already built the token before, use it. | |
3858 | */ | |
3859 | ||
20141f0e | 3860 | |
dba4d153 JH |
3861 | #ifdef __SC__ |
3862 | #pragma segment Perl_yylex | |
3863 | #endif | |
dba4d153 | 3864 | int |
dba4d153 | 3865 | Perl_yylex(pTHX) |
20141f0e | 3866 | { |
97aff369 | 3867 | dVAR; |
3afc138a | 3868 | register char *s = PL_bufptr; |
378cc40b | 3869 | register char *d; |
463ee0b2 | 3870 | STRLEN len; |
aa7440fb | 3871 | bool bof = FALSE; |
580561a3 | 3872 | U32 fake_eof = 0; |
a687059c | 3873 | |
10edeb5d JH |
3874 | /* orig_keyword, gvp, and gv are initialized here because |
3875 | * jump to the label just_a_word_zero can bypass their | |
3876 | * initialization later. */ | |
3877 | I32 orig_keyword = 0; | |
3878 | GV *gv = NULL; | |
3879 | GV **gvp = NULL; | |
3880 | ||
bbf60fe6 | 3881 | DEBUG_T( { |
396482e1 | 3882 | SV* tmp = newSVpvs(""); |
b6007c36 DM |
3883 | PerlIO_printf(Perl_debug_log, "### %"IVdf":LEX_%s/X%s %s\n", |
3884 | (IV)CopLINE(PL_curcop), | |
3885 | lex_state_names[PL_lex_state], | |
3886 | exp_name[PL_expect], | |
3887 | pv_display(tmp, s, strlen(s), 0, 60)); | |
3888 | SvREFCNT_dec(tmp); | |
bbf60fe6 | 3889 | } ); |
02aa26ce | 3890 | /* check if there's an identifier for us to look at */ |
ba979b31 | 3891 | if (PL_pending_ident) |
bbf60fe6 | 3892 | return REPORT(S_pending_ident(aTHX)); |
bbce6d69 | 3893 | |
02aa26ce NT |
3894 | /* no identifier pending identification */ |
3895 | ||
3280af22 | 3896 | switch (PL_lex_state) { |
79072805 LW |
3897 | #ifdef COMMENTARY |
3898 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
3899 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
3900 | break; | |
3901 | #endif | |
3902 | ||
09bef843 | 3903 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 3904 | case LEX_KNOWNEXT: |
5db06880 NC |
3905 | #ifdef PERL_MAD |
3906 | PL_lasttoke--; | |
6154021b | 3907 | pl_yylval = PL_nexttoke[PL_lasttoke].next_val; |
5db06880 | 3908 | if (PL_madskills) { |
cd81e915 | 3909 | PL_thismad = PL_nexttoke[PL_lasttoke].next_mad; |
5db06880 | 3910 | PL_nexttoke[PL_lasttoke].next_mad = 0; |
cd81e915 | 3911 | if (PL_thismad && PL_thismad->mad_key == '_') { |
daba3364 | 3912 | PL_thiswhite = MUTABLE_SV(PL_thismad->mad_val); |
cd81e915 NC |
3913 | PL_thismad->mad_val = 0; |
3914 | mad_free(PL_thismad); | |
3915 | PL_thismad = 0; | |
5db06880 NC |
3916 | } |
3917 | } | |
3918 | if (!PL_lasttoke) { | |
3919 | PL_lex_state = PL_lex_defer; | |
3920 | PL_expect = PL_lex_expect; | |
3921 | PL_lex_defer = LEX_NORMAL; | |
3922 | if (!PL_nexttoke[PL_lasttoke].next_type) | |
3923 | return yylex(); | |
3924 | } | |
3925 | #else | |
3280af22 | 3926 | PL_nexttoke--; |
6154021b | 3927 | pl_yylval = PL_nextval[PL_nexttoke]; |
3280af22 NIS |
3928 | if (!PL_nexttoke) { |
3929 | PL_lex_state = PL_lex_defer; | |
3930 | PL_expect = PL_lex_expect; | |
3931 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 3932 | } |
5db06880 NC |
3933 | #endif |
3934 | #ifdef PERL_MAD | |
3935 | /* FIXME - can these be merged? */ | |
3936 | return(PL_nexttoke[PL_lasttoke].next_type); | |
3937 | #else | |
bbf60fe6 | 3938 | return REPORT(PL_nexttype[PL_nexttoke]); |
5db06880 | 3939 | #endif |
79072805 | 3940 | |
02aa26ce | 3941 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 3942 | when we get here, PL_bufptr is at the \ |
02aa26ce | 3943 | */ |
79072805 LW |
3944 | case LEX_INTERPCASEMOD: |
3945 | #ifdef DEBUGGING | |
3280af22 | 3946 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 3947 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 3948 | #endif |
02aa26ce | 3949 | /* handle \E or end of string */ |
3280af22 | 3950 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
02aa26ce | 3951 | /* if at a \E */ |
3280af22 | 3952 | if (PL_lex_casemods) { |
f54cb97a | 3953 | const char oldmod = PL_lex_casestack[--PL_lex_casemods]; |
3280af22 | 3954 | PL_lex_casestack[PL_lex_casemods] = '\0'; |
02aa26ce | 3955 | |
3792a11b NC |
3956 | if (PL_bufptr != PL_bufend |
3957 | && (oldmod == 'L' || oldmod == 'U' || oldmod == 'Q')) { | |
3280af22 NIS |
3958 | PL_bufptr += 2; |
3959 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3960 | #ifdef PERL_MAD |
3961 | if (PL_madskills) | |
6b29d1f5 | 3962 | PL_thistoken = newSVpvs("\\E"); |
5db06880 | 3963 | #endif |
a0d0e21e | 3964 | } |
bbf60fe6 | 3965 | return REPORT(')'); |
79072805 | 3966 | } |
5db06880 NC |
3967 | #ifdef PERL_MAD |
3968 | while (PL_bufptr != PL_bufend && | |
3969 | PL_bufptr[0] == '\\' && PL_bufptr[1] == 'E') { | |
cd81e915 | 3970 | if (!PL_thiswhite) |
6b29d1f5 | 3971 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3972 | sv_catpvn(PL_thiswhite, PL_bufptr, 2); |
5db06880 NC |
3973 | PL_bufptr += 2; |
3974 | } | |
3975 | #else | |
3280af22 NIS |
3976 | if (PL_bufptr != PL_bufend) |
3977 | PL_bufptr += 2; | |
5db06880 | 3978 | #endif |
3280af22 | 3979 | PL_lex_state = LEX_INTERPCONCAT; |
cea2e8a9 | 3980 | return yylex(); |
79072805 LW |
3981 | } |
3982 | else { | |
607df283 | 3983 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3984 | "### Saw case modifier\n"); }); |
3280af22 | 3985 | s = PL_bufptr + 1; |
6e909404 | 3986 | if (s[1] == '\\' && s[2] == 'E') { |
5db06880 | 3987 | #ifdef PERL_MAD |
cd81e915 | 3988 | if (!PL_thiswhite) |
6b29d1f5 | 3989 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3990 | sv_catpvn(PL_thiswhite, PL_bufptr, 4); |
5db06880 | 3991 | #endif |
89122651 | 3992 | PL_bufptr = s + 3; |
6e909404 JH |
3993 | PL_lex_state = LEX_INTERPCONCAT; |
3994 | return yylex(); | |
a0d0e21e | 3995 | } |
6e909404 | 3996 | else { |
90771dc0 | 3997 | I32 tmp; |
5db06880 NC |
3998 | if (!PL_madskills) /* when just compiling don't need correct */ |
3999 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
4000 | tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */ | |
3792a11b | 4001 | if ((*s == 'L' || *s == 'U') && |
6e909404 JH |
4002 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) { |
4003 | PL_lex_casestack[--PL_lex_casemods] = '\0'; | |
bbf60fe6 | 4004 | return REPORT(')'); |
6e909404 JH |
4005 | } |
4006 | if (PL_lex_casemods > 10) | |
4007 | Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
4008 | PL_lex_casestack[PL_lex_casemods++] = *s; | |
4009 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
4010 | PL_lex_state = LEX_INTERPCONCAT; | |
cd81e915 | 4011 | start_force(PL_curforce); |
9ded7720 | 4012 | NEXTVAL_NEXTTOKE.ival = 0; |
6e909404 | 4013 | force_next('('); |
cd81e915 | 4014 | start_force(PL_curforce); |
6e909404 | 4015 | if (*s == 'l') |
9ded7720 | 4016 | NEXTVAL_NEXTTOKE.ival = OP_LCFIRST; |
6e909404 | 4017 | else if (*s == 'u') |
9ded7720 | 4018 | NEXTVAL_NEXTTOKE.ival = OP_UCFIRST; |
6e909404 | 4019 | else if (*s == 'L') |
9ded7720 | 4020 | NEXTVAL_NEXTTOKE.ival = OP_LC; |
6e909404 | 4021 | else if (*s == 'U') |
9ded7720 | 4022 | NEXTVAL_NEXTTOKE.ival = OP_UC; |
6e909404 | 4023 | else if (*s == 'Q') |
9ded7720 | 4024 | NEXTVAL_NEXTTOKE.ival = OP_QUOTEMETA; |
6e909404 JH |
4025 | else |
4026 | Perl_croak(aTHX_ "panic: yylex"); | |
5db06880 | 4027 | if (PL_madskills) { |
a5849ce5 NC |
4028 | SV* const tmpsv = newSVpvs("\\ "); |
4029 | /* replace the space with the character we want to escape | |
4030 | */ | |
4031 | SvPVX(tmpsv)[1] = *s; | |
5db06880 NC |
4032 | curmad('_', tmpsv); |
4033 | } | |
6e909404 | 4034 | PL_bufptr = s + 1; |
a0d0e21e | 4035 | } |
79072805 | 4036 | force_next(FUNC); |
3280af22 NIS |
4037 | if (PL_lex_starts) { |
4038 | s = PL_bufptr; | |
4039 | PL_lex_starts = 0; | |
5db06880 NC |
4040 | #ifdef PERL_MAD |
4041 | if (PL_madskills) { | |
cd81e915 NC |
4042 | if (PL_thistoken) |
4043 | sv_free(PL_thistoken); | |
6b29d1f5 | 4044 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
4045 | } |
4046 | #endif | |
131b3ad0 DM |
4047 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
4048 | if (PL_lex_casemods == 1 && PL_lex_inpat) | |
4049 | OPERATOR(','); | |
4050 | else | |
4051 | Aop(OP_CONCAT); | |
79072805 LW |
4052 | } |
4053 | else | |
cea2e8a9 | 4054 | return yylex(); |
79072805 LW |
4055 | } |
4056 | ||
55497cff | 4057 | case LEX_INTERPPUSH: |
bbf60fe6 | 4058 | return REPORT(sublex_push()); |
55497cff | 4059 | |
79072805 | 4060 | case LEX_INTERPSTART: |
3280af22 | 4061 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 4062 | return REPORT(sublex_done()); |
607df283 | 4063 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 4064 | "### Interpolated variable\n"); }); |
3280af22 NIS |
4065 | PL_expect = XTERM; |
4066 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
4067 | PL_lex_state = LEX_INTERPNORMAL; | |
4068 | if (PL_lex_dojoin) { | |
cd81e915 | 4069 | start_force(PL_curforce); |
9ded7720 | 4070 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 4071 | force_next(','); |
cd81e915 | 4072 | start_force(PL_curforce); |
a0d0e21e | 4073 | force_ident("\"", '$'); |
cd81e915 | 4074 | start_force(PL_curforce); |
9ded7720 | 4075 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 4076 | force_next('$'); |
cd81e915 | 4077 | start_force(PL_curforce); |
9ded7720 | 4078 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 4079 | force_next('('); |
cd81e915 | 4080 | start_force(PL_curforce); |
9ded7720 | 4081 | NEXTVAL_NEXTTOKE.ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
4082 | force_next(FUNC); |
4083 | } | |
3280af22 NIS |
4084 | if (PL_lex_starts++) { |
4085 | s = PL_bufptr; | |
5db06880 NC |
4086 | #ifdef PERL_MAD |
4087 | if (PL_madskills) { | |
cd81e915 NC |
4088 | if (PL_thistoken) |
4089 | sv_free(PL_thistoken); | |
6b29d1f5 | 4090 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
4091 | } |
4092 | #endif | |
131b3ad0 DM |
4093 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
4094 | if (!PL_lex_casemods && PL_lex_inpat) | |
4095 | OPERATOR(','); | |
4096 | else | |
4097 | Aop(OP_CONCAT); | |
79072805 | 4098 | } |
cea2e8a9 | 4099 | return yylex(); |
79072805 LW |
4100 | |
4101 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
4102 | if (intuit_more(PL_bufptr)) { |
4103 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
4104 | break; |
4105 | } | |
4106 | /* FALL THROUGH */ | |
4107 | ||
4108 | case LEX_INTERPEND: | |
3280af22 NIS |
4109 | if (PL_lex_dojoin) { |
4110 | PL_lex_dojoin = FALSE; | |
4111 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
4112 | #ifdef PERL_MAD |
4113 | if (PL_madskills) { | |
cd81e915 NC |
4114 | if (PL_thistoken) |
4115 | sv_free(PL_thistoken); | |
6b29d1f5 | 4116 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
4117 | } |
4118 | #endif | |
bbf60fe6 | 4119 | return REPORT(')'); |
79072805 | 4120 | } |
43a16006 | 4121 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 4122 | && SvEVALED(PL_lex_repl)) |
43a16006 | 4123 | { |
e9fa98b2 | 4124 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 4125 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
a0714e2c | 4126 | PL_lex_repl = NULL; |
e9fa98b2 | 4127 | } |
79072805 LW |
4128 | /* FALLTHROUGH */ |
4129 | case LEX_INTERPCONCAT: | |
4130 | #ifdef DEBUGGING | |
3280af22 | 4131 | if (PL_lex_brackets) |
cea2e8a9 | 4132 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 4133 | #endif |
3280af22 | 4134 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 4135 | return REPORT(sublex_done()); |
79072805 | 4136 | |
3280af22 NIS |
4137 | if (SvIVX(PL_linestr) == '\'') { |
4138 | SV *sv = newSVsv(PL_linestr); | |
4139 | if (!PL_lex_inpat) | |
76e3520e | 4140 | sv = tokeq(sv); |
3280af22 | 4141 | else if ( PL_hints & HINT_NEW_RE ) |
eb0d8d16 | 4142 | sv = new_constant(NULL, 0, "qr", sv, sv, "q", 1); |
6154021b | 4143 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 4144 | s = PL_bufend; |
79072805 LW |
4145 | } |
4146 | else { | |
3280af22 | 4147 | s = scan_const(PL_bufptr); |
79072805 | 4148 | if (*s == '\\') |
3280af22 | 4149 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 4150 | else |
3280af22 | 4151 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
4152 | } |
4153 | ||
3280af22 | 4154 | if (s != PL_bufptr) { |
cd81e915 | 4155 | start_force(PL_curforce); |
5db06880 NC |
4156 | if (PL_madskills) { |
4157 | curmad('X', newSVpvn(PL_bufptr,s-PL_bufptr)); | |
4158 | } | |
6154021b | 4159 | NEXTVAL_NEXTTOKE = pl_yylval; |
3280af22 | 4160 | PL_expect = XTERM; |
79072805 | 4161 | force_next(THING); |
131b3ad0 | 4162 | if (PL_lex_starts++) { |
5db06880 NC |
4163 | #ifdef PERL_MAD |
4164 | if (PL_madskills) { | |
cd81e915 NC |
4165 | if (PL_thistoken) |
4166 | sv_free(PL_thistoken); | |
6b29d1f5 | 4167 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
4168 | } |
4169 | #endif | |
131b3ad0 DM |
4170 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
4171 | if (!PL_lex_casemods && PL_lex_inpat) | |
4172 | OPERATOR(','); | |
4173 | else | |
4174 | Aop(OP_CONCAT); | |
4175 | } | |
79072805 | 4176 | else { |
3280af22 | 4177 | PL_bufptr = s; |
cea2e8a9 | 4178 | return yylex(); |
79072805 LW |
4179 | } |
4180 | } | |
4181 | ||
cea2e8a9 | 4182 | return yylex(); |
a0d0e21e | 4183 | case LEX_FORMLINE: |
3280af22 NIS |
4184 | PL_lex_state = LEX_NORMAL; |
4185 | s = scan_formline(PL_bufptr); | |
4186 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
4187 | goto rightbracket; |
4188 | OPERATOR(';'); | |
79072805 LW |
4189 | } |
4190 | ||
3280af22 NIS |
4191 | s = PL_bufptr; |
4192 | PL_oldoldbufptr = PL_oldbufptr; | |
4193 | PL_oldbufptr = s; | |
463ee0b2 LW |
4194 | |
4195 | retry: | |
5db06880 | 4196 | #ifdef PERL_MAD |
cd81e915 NC |
4197 | if (PL_thistoken) { |
4198 | sv_free(PL_thistoken); | |
4199 | PL_thistoken = 0; | |
5db06880 | 4200 | } |
cd81e915 | 4201 | PL_realtokenstart = s - SvPVX(PL_linestr); /* assume but undo on ws */ |
5db06880 | 4202 | #endif |
378cc40b LW |
4203 | switch (*s) { |
4204 | default: | |
7e2040f0 | 4205 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 4206 | goto keylookup; |
b1fc3636 CJ |
4207 | { |
4208 | unsigned char c = *s; | |
4209 | len = UTF ? Perl_utf8_length(aTHX_ (U8 *) PL_linestart, (U8 *) s) : (STRLEN) (s - PL_linestart); | |
4210 | if (len > UNRECOGNIZED_PRECEDE_COUNT) { | |
4211 | d = UTF ? (char *) Perl_utf8_hop(aTHX_ (U8 *) s, -UNRECOGNIZED_PRECEDE_COUNT) : s - UNRECOGNIZED_PRECEDE_COUNT; | |
4212 | } else { | |
4213 | d = PL_linestart; | |
4214 | } | |
4215 | *s = '\0'; | |
4216 | Perl_croak(aTHX_ "Unrecognized character \\x%02X; marked by <-- HERE after %s<-- HERE near column %d", c, d, (int) len + 1); | |
4217 | } | |
e929a76b LW |
4218 | case 4: |
4219 | case 26: | |
4220 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 4221 | case 0: |
5db06880 NC |
4222 | #ifdef PERL_MAD |
4223 | if (PL_madskills) | |
cd81e915 | 4224 | PL_faketokens = 0; |
5db06880 | 4225 | #endif |
3280af22 NIS |
4226 | if (!PL_rsfp) { |
4227 | PL_last_uni = 0; | |
4228 | PL_last_lop = 0; | |
c5ee2135 | 4229 | if (PL_lex_brackets) { |
10edeb5d JH |
4230 | yyerror((const char *) |
4231 | (PL_lex_formbrack | |
4232 | ? "Format not terminated" | |
4233 | : "Missing right curly or square bracket")); | |
c5ee2135 | 4234 | } |
4e553d73 | 4235 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 4236 | "### Tokener got EOF\n"); |
5f80b19c | 4237 | } ); |
79072805 | 4238 | TOKEN(0); |
463ee0b2 | 4239 | } |
3280af22 | 4240 | if (s++ < PL_bufend) |
a687059c | 4241 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
4242 | PL_last_uni = 0; |
4243 | PL_last_lop = 0; | |
4244 | if (!PL_in_eval && !PL_preambled) { | |
4245 | PL_preambled = TRUE; | |
5db06880 NC |
4246 | #ifdef PERL_MAD |
4247 | if (PL_madskills) | |
cd81e915 | 4248 | PL_faketokens = 1; |
5db06880 | 4249 | #endif |
5ab7ff98 NC |
4250 | if (PL_perldb) { |
4251 | /* Generate a string of Perl code to load the debugger. | |
4252 | * If PERL5DB is set, it will return the contents of that, | |
4253 | * otherwise a compile-time require of perl5db.pl. */ | |
4254 | ||
4255 | const char * const pdb = PerlEnv_getenv("PERL5DB"); | |
4256 | ||
4257 | if (pdb) { | |
4258 | sv_setpv(PL_linestr, pdb); | |
4259 | sv_catpvs(PL_linestr,";"); | |
4260 | } else { | |
4261 | SETERRNO(0,SS_NORMAL); | |
4262 | sv_setpvs(PL_linestr, "BEGIN { require 'perl5db.pl' };"); | |
4263 | } | |
4264 | } else | |
4265 | sv_setpvs(PL_linestr,""); | |
c62eb204 NC |
4266 | if (PL_preambleav) { |
4267 | SV **svp = AvARRAY(PL_preambleav); | |
4268 | SV **const end = svp + AvFILLp(PL_preambleav); | |
4269 | while(svp <= end) { | |
4270 | sv_catsv(PL_linestr, *svp); | |
4271 | ++svp; | |
396482e1 | 4272 | sv_catpvs(PL_linestr, ";"); |
91b7def8 | 4273 | } |
daba3364 | 4274 | sv_free(MUTABLE_SV(PL_preambleav)); |
3280af22 | 4275 | PL_preambleav = NULL; |
91b7def8 | 4276 | } |
9f639728 FR |
4277 | if (PL_minus_E) |
4278 | sv_catpvs(PL_linestr, | |
4279 | "use feature ':5." STRINGIFY(PERL_VERSION) "';"); | |
3280af22 | 4280 | if (PL_minus_n || PL_minus_p) { |
f0e67a1d | 4281 | sv_catpvs(PL_linestr, "LINE: while (<>) {"/*}*/); |
3280af22 | 4282 | if (PL_minus_l) |
396482e1 | 4283 | sv_catpvs(PL_linestr,"chomp;"); |
3280af22 | 4284 | if (PL_minus_a) { |
3280af22 | 4285 | if (PL_minus_F) { |
3792a11b NC |
4286 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
4287 | || *PL_splitstr == '"') | |
3280af22 | 4288 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 4289 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 4290 | else { |
c8ef6a4b NC |
4291 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
4292 | bytes can be used as quoting characters. :-) */ | |
dd374669 | 4293 | const char *splits = PL_splitstr; |
91d456ae | 4294 | sv_catpvs(PL_linestr, "our @F=split(q\0"); |
48c4c863 NC |
4295 | do { |
4296 | /* Need to \ \s */ | |
dd374669 AL |
4297 | if (*splits == '\\') |
4298 | sv_catpvn(PL_linestr, splits, 1); | |
4299 | sv_catpvn(PL_linestr, splits, 1); | |
4300 | } while (*splits++); | |
48c4c863 NC |
4301 | /* This loop will embed the trailing NUL of |
4302 | PL_linestr as the last thing it does before | |
4303 | terminating. */ | |
396482e1 | 4304 | sv_catpvs(PL_linestr, ");"); |
54310121 | 4305 | } |
2304df62 AD |
4306 | } |
4307 | else | |
396482e1 | 4308 | sv_catpvs(PL_linestr,"our @F=split(' ');"); |
2304df62 | 4309 | } |
79072805 | 4310 | } |
396482e1 | 4311 | sv_catpvs(PL_linestr, "\n"); |
3280af22 NIS |
4312 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
4313 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 4314 | PL_last_lop = PL_last_uni = NULL; |
65269a95 | 4315 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
5fa550fb | 4316 | update_debugger_info(PL_linestr, NULL, 0); |
79072805 | 4317 | goto retry; |
a687059c | 4318 | } |
e929a76b | 4319 | do { |
580561a3 Z |
4320 | fake_eof = 0; |
4321 | bof = PL_rsfp ? TRUE : FALSE; | |
f0e67a1d | 4322 | if (0) { |
7e28d3af | 4323 | fake_eof: |
f0e67a1d Z |
4324 | fake_eof = LEX_FAKE_EOF; |
4325 | } | |
4326 | PL_bufptr = PL_bufend; | |
17cc9359 | 4327 | CopLINE_inc(PL_curcop); |
f0e67a1d | 4328 | if (!lex_next_chunk(fake_eof)) { |
17cc9359 | 4329 | CopLINE_dec(PL_curcop); |
f0e67a1d Z |
4330 | s = PL_bufptr; |
4331 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ | |
4332 | } | |
17cc9359 | 4333 | CopLINE_dec(PL_curcop); |
5db06880 | 4334 | #ifdef PERL_MAD |
f0e67a1d | 4335 | if (!PL_rsfp) |
cd81e915 | 4336 | PL_realtokenstart = -1; |
5db06880 | 4337 | #endif |
f0e67a1d | 4338 | s = PL_bufptr; |
7aa207d6 JH |
4339 | /* If it looks like the start of a BOM or raw UTF-16, |
4340 | * check if it in fact is. */ | |
580561a3 | 4341 | if (bof && PL_rsfp && |
7aa207d6 JH |
4342 | (*s == 0 || |
4343 | *(U8*)s == 0xEF || | |
4344 | *(U8*)s >= 0xFE || | |
4345 | s[1] == 0)) { | |
eb160463 | 4346 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
7e28d3af | 4347 | if (bof) { |
3280af22 | 4348 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 4349 | s = swallow_bom((U8*)s); |
e929a76b | 4350 | } |
378cc40b | 4351 | } |
3280af22 | 4352 | if (PL_doextract) { |
a0d0e21e | 4353 | /* Incest with pod. */ |
5db06880 NC |
4354 | #ifdef PERL_MAD |
4355 | if (PL_madskills) | |
cd81e915 | 4356 | sv_catsv(PL_thiswhite, PL_linestr); |
5db06880 | 4357 | #endif |
01a57ef7 | 4358 | if (*s == '=' && strnEQ(s, "=cut", 4) && !isALPHA(s[4])) { |
76f68e9b | 4359 | sv_setpvs(PL_linestr, ""); |
3280af22 NIS |
4360 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
4361 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 4362 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 4363 | PL_doextract = FALSE; |
a0d0e21e | 4364 | } |
4e553d73 | 4365 | } |
85613cab Z |
4366 | if (PL_rsfp) |
4367 | incline(s); | |
3280af22 NIS |
4368 | } while (PL_doextract); |
4369 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
3280af22 | 4370 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 4371 | PL_last_lop = PL_last_uni = NULL; |
57843af0 | 4372 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 4373 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 4374 | s++; |
a0d0e21e | 4375 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 4376 | s++; |
5db06880 NC |
4377 | #ifdef PERL_MAD |
4378 | if (PL_madskills) | |
cd81e915 | 4379 | PL_thiswhite = newSVpvn(PL_linestart, s - PL_linestart); |
5db06880 | 4380 | #endif |
bd61b366 | 4381 | d = NULL; |
3280af22 | 4382 | if (!PL_in_eval) { |
44a8e56a | 4383 | if (*s == '#' && *(s+1) == '!') |
4384 | d = s + 2; | |
4385 | #ifdef ALTERNATE_SHEBANG | |
4386 | else { | |
bfed75c6 | 4387 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 4388 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
4389 | d = s + (sizeof(as) - 1); | |
4390 | } | |
4391 | #endif /* ALTERNATE_SHEBANG */ | |
4392 | } | |
4393 | if (d) { | |
b8378b72 | 4394 | char *ipath; |
774d564b | 4395 | char *ipathend; |
b8378b72 | 4396 | |
774d564b | 4397 | while (isSPACE(*d)) |
b8378b72 CS |
4398 | d++; |
4399 | ipath = d; | |
774d564b | 4400 | while (*d && !isSPACE(*d)) |
4401 | d++; | |
4402 | ipathend = d; | |
4403 | ||
4404 | #ifdef ARG_ZERO_IS_SCRIPT | |
4405 | if (ipathend > ipath) { | |
4406 | /* | |
4407 | * HP-UX (at least) sets argv[0] to the script name, | |
4408 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
4409 | * at least, set argv[0] to the basename of the Perl | |
4410 | * interpreter. So, having found "#!", we'll set it right. | |
4411 | */ | |
fafc274c NC |
4412 | SV * const x = GvSV(gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, |
4413 | SVt_PV)); /* $^X */ | |
774d564b | 4414 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 4415 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 4416 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 4417 | SvSETMAGIC(x); |
4418 | } | |
556c1dec JH |
4419 | else { |
4420 | STRLEN blen; | |
4421 | STRLEN llen; | |
cfd0369c | 4422 | const char *bstart = SvPV_const(CopFILESV(PL_curcop),blen); |
9d4ba2ae | 4423 | const char * const lstart = SvPV_const(x,llen); |
556c1dec JH |
4424 | if (llen < blen) { |
4425 | bstart += blen - llen; | |
4426 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
4427 | sv_setpvn(x, ipath, ipathend - ipath); | |
4428 | SvSETMAGIC(x); | |
4429 | } | |
4430 | } | |
4431 | } | |
774d564b | 4432 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 4433 | } |
774d564b | 4434 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
4435 | |
4436 | /* | |
4437 | * Look for options. | |
4438 | */ | |
748a9306 | 4439 | d = instr(s,"perl -"); |
84e30d1a | 4440 | if (!d) { |
748a9306 | 4441 | d = instr(s,"perl"); |
84e30d1a GS |
4442 | #if defined(DOSISH) |
4443 | /* avoid getting into infinite loops when shebang | |
4444 | * line contains "Perl" rather than "perl" */ | |
4445 | if (!d) { | |
4446 | for (d = ipathend-4; d >= ipath; --d) { | |
4447 | if ((*d == 'p' || *d == 'P') | |
4448 | && !ibcmp(d, "perl", 4)) | |
4449 | { | |
4450 | break; | |
4451 | } | |
4452 | } | |
4453 | if (d < ipath) | |
bd61b366 | 4454 | d = NULL; |
84e30d1a GS |
4455 | } |
4456 | #endif | |
4457 | } | |
44a8e56a | 4458 | #ifdef ALTERNATE_SHEBANG |
4459 | /* | |
4460 | * If the ALTERNATE_SHEBANG on this system starts with a | |
4461 | * character that can be part of a Perl expression, then if | |
4462 | * we see it but not "perl", we're probably looking at the | |
4463 | * start of Perl code, not a request to hand off to some | |
4464 | * other interpreter. Similarly, if "perl" is there, but | |
4465 | * not in the first 'word' of the line, we assume the line | |
4466 | * contains the start of the Perl program. | |
44a8e56a | 4467 | */ |
4468 | if (d && *s != '#') { | |
f54cb97a | 4469 | const char *c = ipath; |
44a8e56a | 4470 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
4471 | c++; | |
4472 | if (c < d) | |
bd61b366 | 4473 | d = NULL; /* "perl" not in first word; ignore */ |
44a8e56a | 4474 | else |
4475 | *s = '#'; /* Don't try to parse shebang line */ | |
4476 | } | |
774d564b | 4477 | #endif /* ALTERNATE_SHEBANG */ |
748a9306 | 4478 | if (!d && |
44a8e56a | 4479 | *s == '#' && |
774d564b | 4480 | ipathend > ipath && |
3280af22 | 4481 | !PL_minus_c && |
748a9306 | 4482 | !instr(s,"indir") && |
3280af22 | 4483 | instr(PL_origargv[0],"perl")) |
748a9306 | 4484 | { |
27da23d5 | 4485 | dVAR; |
9f68db38 | 4486 | char **newargv; |
9f68db38 | 4487 | |
774d564b | 4488 | *ipathend = '\0'; |
4489 | s = ipathend + 1; | |
3280af22 | 4490 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 4491 | s++; |
3280af22 | 4492 | if (s < PL_bufend) { |
d85f917e | 4493 | Newx(newargv,PL_origargc+3,char*); |
9f68db38 | 4494 | newargv[1] = s; |
3280af22 | 4495 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
4496 | s++; |
4497 | *s = '\0'; | |
3280af22 | 4498 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
4499 | } |
4500 | else | |
3280af22 | 4501 | newargv = PL_origargv; |
774d564b | 4502 | newargv[0] = ipath; |
b35112e7 | 4503 | PERL_FPU_PRE_EXEC |
b4748376 | 4504 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
b35112e7 | 4505 | PERL_FPU_POST_EXEC |
cea2e8a9 | 4506 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 4507 | } |
748a9306 | 4508 | if (d) { |
c35e046a AL |
4509 | while (*d && !isSPACE(*d)) |
4510 | d++; | |
4511 | while (SPACE_OR_TAB(*d)) | |
4512 | d++; | |
748a9306 LW |
4513 | |
4514 | if (*d++ == '-') { | |
f54cb97a | 4515 | const bool switches_done = PL_doswitches; |
fb993905 GA |
4516 | const U32 oldpdb = PL_perldb; |
4517 | const bool oldn = PL_minus_n; | |
4518 | const bool oldp = PL_minus_p; | |
c7030b81 | 4519 | const char *d1 = d; |
fb993905 | 4520 | |
8cc95fdb | 4521 | do { |
4ba71d51 FC |
4522 | bool baduni = FALSE; |
4523 | if (*d1 == 'C') { | |
bd0ab00d NC |
4524 | const char *d2 = d1 + 1; |
4525 | if (parse_unicode_opts((const char **)&d2) | |
4526 | != PL_unicode) | |
4527 | baduni = TRUE; | |
4ba71d51 FC |
4528 | } |
4529 | if (baduni || *d1 == 'M' || *d1 == 'm') { | |
c7030b81 NC |
4530 | const char * const m = d1; |
4531 | while (*d1 && !isSPACE(*d1)) | |
4532 | d1++; | |
cea2e8a9 | 4533 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
c7030b81 | 4534 | (int)(d1 - m), m); |
8cc95fdb | 4535 | } |
c7030b81 NC |
4536 | d1 = moreswitches(d1); |
4537 | } while (d1); | |
f0b2cf55 YST |
4538 | if (PL_doswitches && !switches_done) { |
4539 | int argc = PL_origargc; | |
4540 | char **argv = PL_origargv; | |
4541 | do { | |
4542 | argc--,argv++; | |
4543 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
4544 | init_argv_symbols(argc,argv); | |
4545 | } | |
65269a95 | 4546 | if (((PERLDB_LINE || PERLDB_SAVESRC) && !oldpdb) || |
155aba94 | 4547 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) |
b084f20b | 4548 | /* if we have already added "LINE: while (<>) {", |
4549 | we must not do it again */ | |
748a9306 | 4550 | { |
76f68e9b | 4551 | sv_setpvs(PL_linestr, ""); |
3280af22 NIS |
4552 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
4553 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 4554 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 4555 | PL_preambled = FALSE; |
65269a95 | 4556 | if (PERLDB_LINE || PERLDB_SAVESRC) |
3280af22 | 4557 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
4558 | goto retry; |
4559 | } | |
a0d0e21e | 4560 | } |
79072805 | 4561 | } |
9f68db38 | 4562 | } |
79072805 | 4563 | } |
3280af22 NIS |
4564 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
4565 | PL_bufptr = s; | |
4566 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 4567 | return yylex(); |
ae986130 | 4568 | } |
378cc40b | 4569 | goto retry; |
4fdae800 | 4570 | case '\r': |
6a27c188 | 4571 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 4572 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 4573 | Perl_croak(aTHX_ |
cc507455 | 4574 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 4575 | #endif |
4fdae800 | 4576 | case ' ': case '\t': case '\f': case 013: |
5db06880 | 4577 | #ifdef PERL_MAD |
cd81e915 | 4578 | PL_realtokenstart = -1; |
ac372eb8 RD |
4579 | if (!PL_thiswhite) |
4580 | PL_thiswhite = newSVpvs(""); | |
4581 | sv_catpvn(PL_thiswhite, s, 1); | |
5db06880 | 4582 | #endif |
ac372eb8 | 4583 | s++; |
378cc40b | 4584 | goto retry; |
378cc40b | 4585 | case '#': |
e929a76b | 4586 | case '\n': |
5db06880 | 4587 | #ifdef PERL_MAD |
cd81e915 | 4588 | PL_realtokenstart = -1; |
5db06880 | 4589 | if (PL_madskills) |
cd81e915 | 4590 | PL_faketokens = 0; |
5db06880 | 4591 | #endif |
3280af22 | 4592 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
4593 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
4594 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
4595 | CopLINE_dec(PL_curcop); | |
4596 | incline(s); | |
4597 | } | |
5db06880 NC |
4598 | if (PL_madskills && !PL_lex_formbrack && !PL_in_eval) { |
4599 | s = SKIPSPACE0(s); | |
4600 | if (!PL_in_eval || PL_rsfp) | |
4601 | incline(s); | |
4602 | } | |
4603 | else { | |
4604 | d = s; | |
4605 | while (d < PL_bufend && *d != '\n') | |
4606 | d++; | |
4607 | if (d < PL_bufend) | |
4608 | d++; | |
4609 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
4610 | Perl_croak(aTHX_ "panic: input overflow"); | |
4611 | #ifdef PERL_MAD | |
4612 | if (PL_madskills) | |
cd81e915 | 4613 | PL_thiswhite = newSVpvn(s, d - s); |
5db06880 NC |
4614 | #endif |
4615 | s = d; | |
4616 | incline(s); | |
4617 | } | |
3280af22 NIS |
4618 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
4619 | PL_bufptr = s; | |
4620 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 4621 | return yylex(); |
a687059c | 4622 | } |
378cc40b | 4623 | } |
a687059c | 4624 | else { |
5db06880 NC |
4625 | #ifdef PERL_MAD |
4626 | if (PL_madskills && CopLINE(PL_curcop) >= 1 && !PL_lex_formbrack) { | |
4627 | if (CopLINE(PL_curcop) == 1 && s[0] == '#' && s[1] == '!') { | |
cd81e915 | 4628 | PL_faketokens = 0; |
5db06880 NC |
4629 | s = SKIPSPACE0(s); |
4630 | TOKEN(PEG); /* make sure any #! line is accessible */ | |
4631 | } | |
4632 | s = SKIPSPACE0(s); | |
4633 | } | |
4634 | else { | |
4635 | /* if (PL_madskills && PL_lex_formbrack) { */ | |
4636 | d = s; | |
4637 | while (d < PL_bufend && *d != '\n') | |
4638 | d++; | |
4639 | if (d < PL_bufend) | |
4640 | d++; | |
4641 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
4642 | Perl_croak(aTHX_ "panic: input overflow"); | |
4643 | if (PL_madskills && CopLINE(PL_curcop) >= 1) { | |
cd81e915 | 4644 | if (!PL_thiswhite) |
6b29d1f5 | 4645 | PL_thiswhite = newSVpvs(""); |
5db06880 | 4646 | if (CopLINE(PL_curcop) == 1) { |
76f68e9b | 4647 | sv_setpvs(PL_thiswhite, ""); |
cd81e915 | 4648 | PL_faketokens = 0; |
5db06880 | 4649 | } |
cd81e915 | 4650 | sv_catpvn(PL_thiswhite, s, d - s); |
5db06880 NC |
4651 | } |
4652 | s = d; | |
4653 | /* } | |
4654 | *s = '\0'; | |
4655 | PL_bufend = s; */ | |
4656 | } | |
4657 | #else | |
378cc40b | 4658 | *s = '\0'; |
3280af22 | 4659 | PL_bufend = s; |
5db06880 | 4660 | #endif |
a687059c | 4661 | } |
378cc40b LW |
4662 | goto retry; |
4663 | case '-': | |
79072805 | 4664 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 | 4665 | I32 ftst = 0; |
90771dc0 | 4666 | char tmp; |
e5edeb50 | 4667 | |
378cc40b | 4668 | s++; |
3280af22 | 4669 | PL_bufptr = s; |
748a9306 LW |
4670 | tmp = *s++; |
4671 | ||
bf4acbe4 | 4672 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
4673 | s++; |
4674 | ||
4675 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 4676 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
931e0695 | 4677 | DEBUG_T( { printbuf("### Saw unary minus before =>, forcing word %s\n", s); } ); |
748a9306 LW |
4678 | OPERATOR('-'); /* unary minus */ |
4679 | } | |
3280af22 | 4680 | PL_last_uni = PL_oldbufptr; |
748a9306 | 4681 | switch (tmp) { |
e5edeb50 JH |
4682 | case 'r': ftst = OP_FTEREAD; break; |
4683 | case 'w': ftst = OP_FTEWRITE; break; | |
4684 | case 'x': ftst = OP_FTEEXEC; break; | |
4685 | case 'o': ftst = OP_FTEOWNED; break; | |
4686 | case 'R': ftst = OP_FTRREAD; break; | |
4687 | case 'W': ftst = OP_FTRWRITE; break; | |
4688 | case 'X': ftst = OP_FTREXEC; break; | |
4689 | case 'O': ftst = OP_FTROWNED; break; | |
4690 | case 'e': ftst = OP_FTIS; break; | |
4691 | case 'z': ftst = OP_FTZERO; break; | |
4692 | case 's': ftst = OP_FTSIZE; break; | |
4693 | case 'f': ftst = OP_FTFILE; break; | |
4694 | case 'd': ftst = OP_FTDIR; break; | |
4695 | case 'l': ftst = OP_FTLINK; break; | |
4696 | case 'p': ftst = OP_FTPIPE; break; | |
4697 | case 'S': ftst = OP_FTSOCK; break; | |
4698 | case 'u': ftst = OP_FTSUID; break; | |
4699 | case 'g': ftst = OP_FTSGID; break; | |
4700 | case 'k': ftst = OP_FTSVTX; break; | |
4701 | case 'b': ftst = OP_FTBLK; break; | |
4702 | case 'c': ftst = OP_FTCHR; break; | |
4703 | case 't': ftst = OP_FTTTY; break; | |
4704 | case 'T': ftst = OP_FTTEXT; break; | |
4705 | case 'B': ftst = OP_FTBINARY; break; | |
4706 | case 'M': case 'A': case 'C': | |
fafc274c | 4707 | gv_fetchpvs("\024", GV_ADD|GV_NOTQUAL, SVt_PV); |
e5edeb50 JH |
4708 | switch (tmp) { |
4709 | case 'M': ftst = OP_FTMTIME; break; | |
4710 | case 'A': ftst = OP_FTATIME; break; | |
4711 | case 'C': ftst = OP_FTCTIME; break; | |
4712 | default: break; | |
4713 | } | |
4714 | break; | |
378cc40b | 4715 | default: |
378cc40b LW |
4716 | break; |
4717 | } | |
e5edeb50 | 4718 | if (ftst) { |
eb160463 | 4719 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 4720 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a18d764d | 4721 | "### Saw file test %c\n", (int)tmp); |
5f80b19c | 4722 | } ); |
e5edeb50 JH |
4723 | FTST(ftst); |
4724 | } | |
4725 | else { | |
4726 | /* Assume it was a minus followed by a one-letter named | |
4727 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 4728 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
17ad61e0 | 4729 | "### '-%c' looked like a file test but was not\n", |
4fccd7c6 | 4730 | (int) tmp); |
5f80b19c | 4731 | } ); |
3cf7b4c4 | 4732 | s = --PL_bufptr; |
e5edeb50 | 4733 | } |
378cc40b | 4734 | } |
90771dc0 NC |
4735 | { |
4736 | const char tmp = *s++; | |
4737 | if (*s == tmp) { | |
4738 | s++; | |
4739 | if (PL_expect == XOPERATOR) | |
4740 | TERM(POSTDEC); | |
4741 | else | |
4742 | OPERATOR(PREDEC); | |
4743 | } | |
4744 | else if (*s == '>') { | |
4745 | s++; | |
29595ff2 | 4746 | s = SKIPSPACE1(s); |
90771dc0 NC |
4747 | if (isIDFIRST_lazy_if(s,UTF)) { |
4748 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); | |
4749 | TOKEN(ARROW); | |
4750 | } | |
4751 | else if (*s == '$') | |
4752 | OPERATOR(ARROW); | |
4753 | else | |
4754 | TERM(ARROW); | |
4755 | } | |
3280af22 | 4756 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4757 | Aop(OP_SUBTRACT); |
4758 | else { | |
4759 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4760 | check_uni(); | |
4761 | OPERATOR('-'); /* unary minus */ | |
79072805 | 4762 | } |
2f3197b3 | 4763 | } |
79072805 | 4764 | |
378cc40b | 4765 | case '+': |
90771dc0 NC |
4766 | { |
4767 | const char tmp = *s++; | |
4768 | if (*s == tmp) { | |
4769 | s++; | |
4770 | if (PL_expect == XOPERATOR) | |
4771 | TERM(POSTINC); | |
4772 | else | |
4773 | OPERATOR(PREINC); | |
4774 | } | |
3280af22 | 4775 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4776 | Aop(OP_ADD); |
4777 | else { | |
4778 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4779 | check_uni(); | |
4780 | OPERATOR('+'); | |
4781 | } | |
2f3197b3 | 4782 | } |
a687059c | 4783 | |
378cc40b | 4784 | case '*': |
3280af22 NIS |
4785 | if (PL_expect != XOPERATOR) { |
4786 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
4787 | PL_expect = XOPERATOR; | |
4788 | force_ident(PL_tokenbuf, '*'); | |
4789 | if (!*PL_tokenbuf) | |
a0d0e21e | 4790 | PREREF('*'); |
79072805 | 4791 | TERM('*'); |
a687059c | 4792 | } |
79072805 LW |
4793 | s++; |
4794 | if (*s == '*') { | |
a687059c | 4795 | s++; |
79072805 | 4796 | PWop(OP_POW); |
a687059c | 4797 | } |
79072805 LW |
4798 | Mop(OP_MULTIPLY); |
4799 | ||
378cc40b | 4800 | case '%': |
3280af22 | 4801 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 4802 | ++s; |
4803 | Mop(OP_MODULO); | |
a687059c | 4804 | } |
3280af22 | 4805 | PL_tokenbuf[0] = '%'; |
e8ae98db RGS |
4806 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
4807 | sizeof PL_tokenbuf - 1, FALSE); | |
3280af22 | 4808 | if (!PL_tokenbuf[1]) { |
bbce6d69 | 4809 | PREREF('%'); |
a687059c | 4810 | } |
3280af22 | 4811 | PL_pending_ident = '%'; |
bbce6d69 | 4812 | TERM('%'); |
a687059c | 4813 | |
378cc40b | 4814 | case '^': |
79072805 | 4815 | s++; |
a0d0e21e | 4816 | BOop(OP_BIT_XOR); |
79072805 | 4817 | case '[': |
3280af22 | 4818 | PL_lex_brackets++; |
df3467db IG |
4819 | { |
4820 | const char tmp = *s++; | |
4821 | OPERATOR(tmp); | |
4822 | } | |
378cc40b | 4823 | case '~': |
0d863452 | 4824 | if (s[1] == '~' |
3e7dd34d | 4825 | && (PL_expect == XOPERATOR || PL_expect == XTERMORDORDOR)) |
0d863452 RH |
4826 | { |
4827 | s += 2; | |
4828 | Eop(OP_SMARTMATCH); | |
4829 | } | |
378cc40b | 4830 | case ',': |
90771dc0 NC |
4831 | { |
4832 | const char tmp = *s++; | |
4833 | OPERATOR(tmp); | |
4834 | } | |
a0d0e21e LW |
4835 | case ':': |
4836 | if (s[1] == ':') { | |
4837 | len = 0; | |
0bfa2a8a | 4838 | goto just_a_word_zero_gv; |
a0d0e21e LW |
4839 | } |
4840 | s++; | |
09bef843 SB |
4841 | switch (PL_expect) { |
4842 | OP *attrs; | |
5db06880 NC |
4843 | #ifdef PERL_MAD |
4844 | I32 stuffstart; | |
4845 | #endif | |
09bef843 SB |
4846 | case XOPERATOR: |
4847 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
4848 | break; | |
4849 | PL_bufptr = s; /* update in case we back off */ | |
d83f38d8 NC |
4850 | if (*s == '=') { |
4851 | deprecate(":= for an empty attribute list"); | |
4852 | } | |
09bef843 SB |
4853 | goto grabattrs; |
4854 | case XATTRBLOCK: | |
4855 | PL_expect = XBLOCK; | |
4856 | goto grabattrs; | |
4857 | case XATTRTERM: | |
4858 | PL_expect = XTERMBLOCK; | |
4859 | grabattrs: | |
5db06880 NC |
4860 | #ifdef PERL_MAD |
4861 | stuffstart = s - SvPVX(PL_linestr) - 1; | |
4862 | #endif | |
29595ff2 | 4863 | s = PEEKSPACE(s); |
5f66b61c | 4864 | attrs = NULL; |
7e2040f0 | 4865 | while (isIDFIRST_lazy_if(s,UTF)) { |
90771dc0 | 4866 | I32 tmp; |
5cc237b8 | 4867 | SV *sv; |
09bef843 | 4868 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 4869 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len, 0))) { |
f9829d6b GS |
4870 | if (tmp < 0) tmp = -tmp; |
4871 | switch (tmp) { | |
4872 | case KEY_or: | |
4873 | case KEY_and: | |
4874 | case KEY_for: | |
11baf631 | 4875 | case KEY_foreach: |
f9829d6b GS |
4876 | case KEY_unless: |
4877 | case KEY_if: | |
4878 | case KEY_while: | |
4879 | case KEY_until: | |
4880 | goto got_attrs; | |
4881 | default: | |
4882 | break; | |
4883 | } | |
4884 | } | |
5cc237b8 | 4885 | sv = newSVpvn(s, len); |
09bef843 SB |
4886 | if (*d == '(') { |
4887 | d = scan_str(d,TRUE,TRUE); | |
4888 | if (!d) { | |
09bef843 SB |
4889 | /* MUST advance bufptr here to avoid bogus |
4890 | "at end of line" context messages from yyerror(). | |
4891 | */ | |
4892 | PL_bufptr = s + len; | |
4893 | yyerror("Unterminated attribute parameter in attribute list"); | |
4894 | if (attrs) | |
4895 | op_free(attrs); | |
5cc237b8 | 4896 | sv_free(sv); |
bbf60fe6 | 4897 | return REPORT(0); /* EOF indicator */ |
09bef843 SB |
4898 | } |
4899 | } | |
4900 | if (PL_lex_stuff) { | |
09bef843 SB |
4901 | sv_catsv(sv, PL_lex_stuff); |
4902 | attrs = append_elem(OP_LIST, attrs, | |
4903 | newSVOP(OP_CONST, 0, sv)); | |
4904 | SvREFCNT_dec(PL_lex_stuff); | |
a0714e2c | 4905 | PL_lex_stuff = NULL; |
09bef843 SB |
4906 | } |
4907 | else { | |
5cc237b8 BS |
4908 | if (len == 6 && strnEQ(SvPVX(sv), "unique", len)) { |
4909 | sv_free(sv); | |
1108974d | 4910 | if (PL_in_my == KEY_our) { |
df9a6019 | 4911 | deprecate(":unique"); |
1108974d | 4912 | } |
bfed75c6 | 4913 | else |
371fce9b DM |
4914 | Perl_croak(aTHX_ "The 'unique' attribute may only be applied to 'our' variables"); |
4915 | } | |
4916 | ||
d3cea301 SB |
4917 | /* NOTE: any CV attrs applied here need to be part of |
4918 | the CVf_BUILTIN_ATTRS define in cv.h! */ | |
5cc237b8 BS |
4919 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "lvalue", len)) { |
4920 | sv_free(sv); | |
78f9721b | 4921 | CvLVALUE_on(PL_compcv); |
5cc237b8 BS |
4922 | } |
4923 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "locked", len)) { | |
4924 | sv_free(sv); | |
8e5dadda | 4925 | deprecate(":locked"); |
5cc237b8 BS |
4926 | } |
4927 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "method", len)) { | |
4928 | sv_free(sv); | |
78f9721b | 4929 | CvMETHOD_on(PL_compcv); |
5cc237b8 | 4930 | } |
78f9721b SM |
4931 | /* After we've set the flags, it could be argued that |
4932 | we don't need to do the attributes.pm-based setting | |
4933 | process, and shouldn't bother appending recognized | |
d3cea301 SB |
4934 | flags. To experiment with that, uncomment the |
4935 | following "else". (Note that's already been | |
4936 | uncommented. That keeps the above-applied built-in | |
4937 | attributes from being intercepted (and possibly | |
4938 | rejected) by a package's attribute routines, but is | |
4939 | justified by the performance win for the common case | |
4940 | of applying only built-in attributes.) */ | |
0256094b | 4941 | else |
78f9721b SM |
4942 | attrs = append_elem(OP_LIST, attrs, |
4943 | newSVOP(OP_CONST, 0, | |
5cc237b8 | 4944 | sv)); |
09bef843 | 4945 | } |
29595ff2 | 4946 | s = PEEKSPACE(d); |
0120eecf | 4947 | if (*s == ':' && s[1] != ':') |
29595ff2 | 4948 | s = PEEKSPACE(s+1); |
0120eecf GS |
4949 | else if (s == d) |
4950 | break; /* require real whitespace or :'s */ | |
29595ff2 | 4951 | /* XXX losing whitespace on sequential attributes here */ |
09bef843 | 4952 | } |
90771dc0 NC |
4953 | { |
4954 | const char tmp | |
4955 | = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ | |
4956 | if (*s != ';' && *s != '}' && *s != tmp | |
4957 | && (tmp != '=' || *s != ')')) { | |
4958 | const char q = ((*s == '\'') ? '"' : '\''); | |
4959 | /* If here for an expression, and parsed no attrs, back | |
4960 | off. */ | |
4961 | if (tmp == '=' && !attrs) { | |
4962 | s = PL_bufptr; | |
4963 | break; | |
4964 | } | |
4965 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
4966 | context messages from yyerror(). | |
4967 | */ | |
4968 | PL_bufptr = s; | |
10edeb5d JH |
4969 | yyerror( (const char *) |
4970 | (*s | |
4971 | ? Perl_form(aTHX_ "Invalid separator character " | |
4972 | "%c%c%c in attribute list", q, *s, q) | |
4973 | : "Unterminated attribute list" ) ); | |
90771dc0 NC |
4974 | if (attrs) |
4975 | op_free(attrs); | |
4976 | OPERATOR(':'); | |
09bef843 | 4977 | } |
09bef843 | 4978 | } |
f9829d6b | 4979 | got_attrs: |
09bef843 | 4980 | if (attrs) { |
cd81e915 | 4981 | start_force(PL_curforce); |
9ded7720 | 4982 | NEXTVAL_NEXTTOKE.opval = attrs; |
cd81e915 | 4983 | CURMAD('_', PL_nextwhite); |
89122651 | 4984 | force_next(THING); |
5db06880 NC |
4985 | } |
4986 | #ifdef PERL_MAD | |
4987 | if (PL_madskills) { | |
cd81e915 | 4988 | PL_thistoken = newSVpvn(SvPVX(PL_linestr) + stuffstart, |
5db06880 | 4989 | (s - SvPVX(PL_linestr)) - stuffstart); |
09bef843 | 4990 | } |
5db06880 | 4991 | #endif |
09bef843 SB |
4992 | TOKEN(COLONATTR); |
4993 | } | |
a0d0e21e | 4994 | OPERATOR(':'); |
8990e307 LW |
4995 | case '(': |
4996 | s++; | |
3280af22 NIS |
4997 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
4998 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 4999 | else |
3280af22 | 5000 | PL_expect = XTERM; |
29595ff2 | 5001 | s = SKIPSPACE1(s); |
a0d0e21e | 5002 | TOKEN('('); |
378cc40b | 5003 | case ';': |
f4dd75d9 | 5004 | CLINE; |
90771dc0 NC |
5005 | { |
5006 | const char tmp = *s++; | |
5007 | OPERATOR(tmp); | |
5008 | } | |
378cc40b | 5009 | case ')': |
90771dc0 NC |
5010 | { |
5011 | const char tmp = *s++; | |
29595ff2 | 5012 | s = SKIPSPACE1(s); |
90771dc0 NC |
5013 | if (*s == '{') |
5014 | PREBLOCK(tmp); | |
5015 | TERM(tmp); | |
5016 | } | |
79072805 LW |
5017 | case ']': |
5018 | s++; | |
3280af22 | 5019 | if (PL_lex_brackets <= 0) |
d98d5fff | 5020 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 5021 | else |
3280af22 NIS |
5022 | --PL_lex_brackets; |
5023 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
5024 | if (PL_lex_brackets == 0) { | |
02255c60 FC |
5025 | if (*s == '-' && s[1] == '>') |
5026 | PL_lex_state = LEX_INTERPENDMAYBE; | |
5027 | else if (*s != '[' && *s != '{') | |
3280af22 | 5028 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
5029 | } |
5030 | } | |
4633a7c4 | 5031 | TERM(']'); |
79072805 LW |
5032 | case '{': |
5033 | leftbracket: | |
79072805 | 5034 | s++; |
3280af22 | 5035 | if (PL_lex_brackets > 100) { |
8edd5f42 | 5036 | Renew(PL_lex_brackstack, PL_lex_brackets + 10, char); |
8990e307 | 5037 | } |
3280af22 | 5038 | switch (PL_expect) { |
a0d0e21e | 5039 | case XTERM: |
3280af22 | 5040 | if (PL_lex_formbrack) { |
a0d0e21e LW |
5041 | s--; |
5042 | PRETERMBLOCK(DO); | |
5043 | } | |
3280af22 NIS |
5044 | if (PL_oldoldbufptr == PL_last_lop) |
5045 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 5046 | else |
3280af22 | 5047 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 5048 | OPERATOR(HASHBRACK); |
a0d0e21e | 5049 | case XOPERATOR: |
bf4acbe4 | 5050 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 5051 | s++; |
44a8e56a | 5052 | d = s; |
3280af22 NIS |
5053 | PL_tokenbuf[0] = '\0'; |
5054 | if (d < PL_bufend && *d == '-') { | |
5055 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 5056 | d++; |
bf4acbe4 | 5057 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 5058 | d++; |
5059 | } | |
7e2040f0 | 5060 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 5061 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 5062 | FALSE, &len); |
bf4acbe4 | 5063 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
5064 | d++; |
5065 | if (*d == '}') { | |
f54cb97a | 5066 | const char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 5067 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
5068 | if (minus) | |
5069 | force_next('-'); | |
748a9306 LW |
5070 | } |
5071 | } | |
5072 | /* FALL THROUGH */ | |
09bef843 | 5073 | case XATTRBLOCK: |
748a9306 | 5074 | case XBLOCK: |
3280af22 NIS |
5075 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
5076 | PL_expect = XSTATE; | |
a0d0e21e | 5077 | break; |
09bef843 | 5078 | case XATTRTERM: |
a0d0e21e | 5079 | case XTERMBLOCK: |
3280af22 NIS |
5080 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
5081 | PL_expect = XSTATE; | |
a0d0e21e LW |
5082 | break; |
5083 | default: { | |
f54cb97a | 5084 | const char *t; |
3280af22 NIS |
5085 | if (PL_oldoldbufptr == PL_last_lop) |
5086 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 5087 | else |
3280af22 | 5088 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
29595ff2 | 5089 | s = SKIPSPACE1(s); |
8452ff4b SB |
5090 | if (*s == '}') { |
5091 | if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) { | |
5092 | PL_expect = XTERM; | |
5093 | /* This hack is to get the ${} in the message. */ | |
5094 | PL_bufptr = s+1; | |
5095 | yyerror("syntax error"); | |
5096 | break; | |
5097 | } | |
a0d0e21e | 5098 | OPERATOR(HASHBRACK); |
8452ff4b | 5099 | } |
b8a4b1be GS |
5100 | /* This hack serves to disambiguate a pair of curlies |
5101 | * as being a block or an anon hash. Normally, expectation | |
5102 | * determines that, but in cases where we're not in a | |
5103 | * position to expect anything in particular (like inside | |
5104 | * eval"") we have to resolve the ambiguity. This code | |
5105 | * covers the case where the first term in the curlies is a | |
5106 | * quoted string. Most other cases need to be explicitly | |
a0288114 | 5107 | * disambiguated by prepending a "+" before the opening |
b8a4b1be GS |
5108 | * curly in order to force resolution as an anon hash. |
5109 | * | |
5110 | * XXX should probably propagate the outer expectation | |
5111 | * into eval"" to rely less on this hack, but that could | |
5112 | * potentially break current behavior of eval"". | |
5113 | * GSAR 97-07-21 | |
5114 | */ | |
5115 | t = s; | |
5116 | if (*s == '\'' || *s == '"' || *s == '`') { | |
5117 | /* common case: get past first string, handling escapes */ | |
3280af22 | 5118 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
5119 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
5120 | t++; | |
5121 | t++; | |
a0d0e21e | 5122 | } |
b8a4b1be | 5123 | else if (*s == 'q') { |
3280af22 | 5124 | if (++t < PL_bufend |
b8a4b1be | 5125 | && (!isALNUM(*t) |
3280af22 | 5126 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
5127 | && !isALNUM(*t)))) |
5128 | { | |
abc667d1 | 5129 | /* skip q//-like construct */ |
f54cb97a | 5130 | const char *tmps; |
b8a4b1be GS |
5131 | char open, close, term; |
5132 | I32 brackets = 1; | |
5133 | ||
3280af22 | 5134 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be | 5135 | t++; |
abc667d1 DM |
5136 | /* check for q => */ |
5137 | if (t+1 < PL_bufend && t[0] == '=' && t[1] == '>') { | |
5138 | OPERATOR(HASHBRACK); | |
5139 | } | |
b8a4b1be GS |
5140 | term = *t; |
5141 | open = term; | |
5142 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
5143 | term = tmps[5]; | |
5144 | close = term; | |
5145 | if (open == close) | |
3280af22 NIS |
5146 | for (t++; t < PL_bufend; t++) { |
5147 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 5148 | t++; |
6d07e5e9 | 5149 | else if (*t == open) |
b8a4b1be GS |
5150 | break; |
5151 | } | |
abc667d1 | 5152 | else { |
3280af22 NIS |
5153 | for (t++; t < PL_bufend; t++) { |
5154 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 5155 | t++; |
6d07e5e9 | 5156 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
5157 | break; |
5158 | else if (*t == open) | |
5159 | brackets++; | |
5160 | } | |
abc667d1 DM |
5161 | } |
5162 | t++; | |
b8a4b1be | 5163 | } |
abc667d1 DM |
5164 | else |
5165 | /* skip plain q word */ | |
5166 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) | |
5167 | t += UTF8SKIP(t); | |
a0d0e21e | 5168 | } |
7e2040f0 | 5169 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 5170 | t += UTF8SKIP(t); |
7e2040f0 | 5171 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 5172 | t += UTF8SKIP(t); |
a0d0e21e | 5173 | } |
3280af22 | 5174 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 5175 | t++; |
b8a4b1be GS |
5176 | /* if comma follows first term, call it an anon hash */ |
5177 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 5178 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 5179 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 5180 | OPERATOR(HASHBRACK); |
3280af22 | 5181 | if (PL_expect == XREF) |
4e4e412b | 5182 | PL_expect = XTERM; |
a0d0e21e | 5183 | else { |
3280af22 NIS |
5184 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
5185 | PL_expect = XSTATE; | |
a0d0e21e | 5186 | } |
8990e307 | 5187 | } |
a0d0e21e | 5188 | break; |
463ee0b2 | 5189 | } |
6154021b | 5190 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 | 5191 | if (isSPACE(*s) || *s == '#') |
3280af22 | 5192 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 5193 | TOKEN('{'); |
378cc40b | 5194 | case '}': |
79072805 LW |
5195 | rightbracket: |
5196 | s++; | |
3280af22 | 5197 | if (PL_lex_brackets <= 0) |
d98d5fff | 5198 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 5199 | else |
3280af22 | 5200 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 5201 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
5202 | PL_lex_formbrack = 0; |
5203 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
5204 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
5205 | if (PL_expect & XFAKEBRACK) { |
5206 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
5207 | PL_lex_state = LEX_INTERPEND; |
5208 | PL_bufptr = s; | |
5db06880 NC |
5209 | #if 0 |
5210 | if (PL_madskills) { | |
cd81e915 | 5211 | if (!PL_thiswhite) |
6b29d1f5 | 5212 | PL_thiswhite = newSVpvs(""); |
76f68e9b | 5213 | sv_catpvs(PL_thiswhite,"}"); |
5db06880 NC |
5214 | } |
5215 | #endif | |
cea2e8a9 | 5216 | return yylex(); /* ignore fake brackets */ |
79072805 | 5217 | } |
fa83b5b6 | 5218 | if (*s == '-' && s[1] == '>') |
3280af22 | 5219 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 5220 | else if (*s != '[' && *s != '{') |
3280af22 | 5221 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
5222 | } |
5223 | } | |
9059aa12 LW |
5224 | if (PL_expect & XFAKEBRACK) { |
5225 | PL_expect &= XENUMMASK; | |
3280af22 | 5226 | PL_bufptr = s; |
cea2e8a9 | 5227 | return yylex(); /* ignore fake brackets */ |
748a9306 | 5228 | } |
cd81e915 | 5229 | start_force(PL_curforce); |
5db06880 NC |
5230 | if (PL_madskills) { |
5231 | curmad('X', newSVpvn(s-1,1)); | |
cd81e915 | 5232 | CURMAD('_', PL_thiswhite); |
5db06880 | 5233 | } |
79072805 | 5234 | force_next('}'); |
5db06880 | 5235 | #ifdef PERL_MAD |
cd81e915 | 5236 | if (!PL_thistoken) |
6b29d1f5 | 5237 | PL_thistoken = newSVpvs(""); |
5db06880 | 5238 | #endif |
79072805 | 5239 | TOKEN(';'); |
378cc40b LW |
5240 | case '&': |
5241 | s++; | |
90771dc0 | 5242 | if (*s++ == '&') |
a0d0e21e | 5243 | AOPERATOR(ANDAND); |
378cc40b | 5244 | s--; |
3280af22 | 5245 | if (PL_expect == XOPERATOR) { |
041457d9 DM |
5246 | if (PL_bufptr == PL_linestart && ckWARN(WARN_SEMICOLON) |
5247 | && isIDFIRST_lazy_if(s,UTF)) | |
7e2040f0 | 5248 | { |
57843af0 | 5249 | CopLINE_dec(PL_curcop); |
f1f66076 | 5250 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), "%s", PL_warn_nosemi); |
57843af0 | 5251 | CopLINE_inc(PL_curcop); |
463ee0b2 | 5252 | } |
79072805 | 5253 | BAop(OP_BIT_AND); |
463ee0b2 | 5254 | } |
79072805 | 5255 | |
3280af22 NIS |
5256 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
5257 | if (*PL_tokenbuf) { | |
5258 | PL_expect = XOPERATOR; | |
5259 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 5260 | } |
79072805 LW |
5261 | else |
5262 | PREREF('&'); | |
6154021b | 5263 | pl_yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
5264 | TERM('&'); |
5265 | ||
378cc40b LW |
5266 | case '|': |
5267 | s++; | |
90771dc0 | 5268 | if (*s++ == '|') |
a0d0e21e | 5269 | AOPERATOR(OROR); |
378cc40b | 5270 | s--; |
79072805 | 5271 | BOop(OP_BIT_OR); |
378cc40b LW |
5272 | case '=': |
5273 | s++; | |
748a9306 | 5274 | { |
90771dc0 NC |
5275 | const char tmp = *s++; |
5276 | if (tmp == '=') | |
5277 | Eop(OP_EQ); | |
5278 | if (tmp == '>') | |
5279 | OPERATOR(','); | |
5280 | if (tmp == '~') | |
5281 | PMop(OP_MATCH); | |
5282 | if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX) | |
5283 | && strchr("+-*/%.^&|<",tmp)) | |
5284 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
5285 | "Reversed %c= operator",(int)tmp); | |
5286 | s--; | |
5287 | if (PL_expect == XSTATE && isALPHA(tmp) && | |
5288 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
5289 | { | |
5290 | if (PL_in_eval && !PL_rsfp) { | |
5291 | d = PL_bufend; | |
5292 | while (s < d) { | |
5293 | if (*s++ == '\n') { | |
5294 | incline(s); | |
5295 | if (strnEQ(s,"=cut",4)) { | |
5296 | s = strchr(s,'\n'); | |
5297 | if (s) | |
5298 | s++; | |
5299 | else | |
5300 | s = d; | |
5301 | incline(s); | |
5302 | goto retry; | |
5303 | } | |
5304 | } | |
a5f75d66 | 5305 | } |
90771dc0 | 5306 | goto retry; |
a5f75d66 | 5307 | } |
5db06880 NC |
5308 | #ifdef PERL_MAD |
5309 | if (PL_madskills) { | |
cd81e915 | 5310 | if (!PL_thiswhite) |
6b29d1f5 | 5311 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 5312 | sv_catpvn(PL_thiswhite, PL_linestart, |
5db06880 NC |
5313 | PL_bufend - PL_linestart); |
5314 | } | |
5315 | #endif | |
90771dc0 NC |
5316 | s = PL_bufend; |
5317 | PL_doextract = TRUE; | |
5318 | goto retry; | |
a5f75d66 | 5319 | } |
a0d0e21e | 5320 | } |
3280af22 | 5321 | if (PL_lex_brackets < PL_lex_formbrack) { |
c35e046a | 5322 | const char *t = s; |
51882d45 | 5323 | #ifdef PERL_STRICT_CR |
c35e046a | 5324 | while (SPACE_OR_TAB(*t)) |
51882d45 | 5325 | #else |
c35e046a | 5326 | while (SPACE_OR_TAB(*t) || *t == '\r') |
51882d45 | 5327 | #endif |
c35e046a | 5328 | t++; |
a0d0e21e LW |
5329 | if (*t == '\n' || *t == '#') { |
5330 | s--; | |
3280af22 | 5331 | PL_expect = XBLOCK; |
a0d0e21e LW |
5332 | goto leftbracket; |
5333 | } | |
79072805 | 5334 | } |
6154021b | 5335 | pl_yylval.ival = 0; |
a0d0e21e | 5336 | OPERATOR(ASSIGNOP); |
378cc40b LW |
5337 | case '!': |
5338 | s++; | |
90771dc0 NC |
5339 | { |
5340 | const char tmp = *s++; | |
5341 | if (tmp == '=') { | |
5342 | /* was this !=~ where !~ was meant? | |
5343 | * warn on m:!=~\s+([/?]|[msy]\W|tr\W): */ | |
5344 | ||
5345 | if (*s == '~' && ckWARN(WARN_SYNTAX)) { | |
5346 | const char *t = s+1; | |
5347 | ||
5348 | while (t < PL_bufend && isSPACE(*t)) | |
5349 | ++t; | |
5350 | ||
5351 | if (*t == '/' || *t == '?' || | |
5352 | ((*t == 'm' || *t == 's' || *t == 'y') | |
5353 | && !isALNUM(t[1])) || | |
5354 | (*t == 't' && t[1] == 'r' && !isALNUM(t[2]))) | |
5355 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
5356 | "!=~ should be !~"); | |
5357 | } | |
5358 | Eop(OP_NE); | |
5359 | } | |
5360 | if (tmp == '~') | |
5361 | PMop(OP_NOT); | |
5362 | } | |
378cc40b LW |
5363 | s--; |
5364 | OPERATOR('!'); | |
5365 | case '<': | |
3280af22 | 5366 | if (PL_expect != XOPERATOR) { |
93a17b20 | 5367 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 5368 | check_uni(); |
79072805 LW |
5369 | if (s[1] == '<') |
5370 | s = scan_heredoc(s); | |
5371 | else | |
5372 | s = scan_inputsymbol(s); | |
5373 | TERM(sublex_start()); | |
378cc40b LW |
5374 | } |
5375 | s++; | |
90771dc0 NC |
5376 | { |
5377 | char tmp = *s++; | |
5378 | if (tmp == '<') | |
5379 | SHop(OP_LEFT_SHIFT); | |
5380 | if (tmp == '=') { | |
5381 | tmp = *s++; | |
5382 | if (tmp == '>') | |
5383 | Eop(OP_NCMP); | |
5384 | s--; | |
5385 | Rop(OP_LE); | |
5386 | } | |
395c3793 | 5387 | } |
378cc40b | 5388 | s--; |
79072805 | 5389 | Rop(OP_LT); |
378cc40b LW |
5390 | case '>': |
5391 | s++; | |
90771dc0 NC |
5392 | { |
5393 | const char tmp = *s++; | |
5394 | if (tmp == '>') | |
5395 | SHop(OP_RIGHT_SHIFT); | |
d4c19fe8 | 5396 | else if (tmp == '=') |
90771dc0 NC |
5397 | Rop(OP_GE); |
5398 | } | |
378cc40b | 5399 | s--; |
79072805 | 5400 | Rop(OP_GT); |
378cc40b LW |
5401 | |
5402 | case '$': | |
bbce6d69 | 5403 | CLINE; |
5404 | ||
3280af22 NIS |
5405 | if (PL_expect == XOPERATOR) { |
5406 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
8290c323 | 5407 | return deprecate_commaless_var_list(); |
a0d0e21e | 5408 | } |
8990e307 | 5409 | } |
a0d0e21e | 5410 | |
7e2040f0 | 5411 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-", s[2]))) { |
3280af22 | 5412 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
5413 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
5414 | sizeof PL_tokenbuf - 1, FALSE); | |
5415 | if (PL_expect == XOPERATOR) | |
5416 | no_op("Array length", s); | |
3280af22 | 5417 | if (!PL_tokenbuf[1]) |
a0d0e21e | 5418 | PREREF(DOLSHARP); |
3280af22 NIS |
5419 | PL_expect = XOPERATOR; |
5420 | PL_pending_ident = '#'; | |
463ee0b2 | 5421 | TOKEN(DOLSHARP); |
79072805 | 5422 | } |
bbce6d69 | 5423 | |
3280af22 | 5424 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
5425 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
5426 | sizeof PL_tokenbuf - 1, FALSE); | |
5427 | if (PL_expect == XOPERATOR) | |
5428 | no_op("Scalar", s); | |
3280af22 NIS |
5429 | if (!PL_tokenbuf[1]) { |
5430 | if (s == PL_bufend) | |
bbce6d69 | 5431 | yyerror("Final $ should be \\$ or $name"); |
5432 | PREREF('$'); | |
8990e307 | 5433 | } |
a0d0e21e | 5434 | |
bbce6d69 | 5435 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 5436 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
6154021b | 5437 | pl_yylval.opval = newSVOP(OP_CONST, 0, |
fc15ae8f | 5438 | newSViv(CopARYBASE_get(&PL_compiling))); |
6154021b | 5439 | pl_yylval.opval->op_private = OPpCONST_ARYBASE; |
bbce6d69 | 5440 | TERM(THING); |
5441 | } | |
5442 | ||
ff68c719 | 5443 | d = s; |
90771dc0 NC |
5444 | { |
5445 | const char tmp = *s; | |
ae28bb2a | 5446 | if (PL_lex_state == LEX_NORMAL || PL_lex_brackets) |
29595ff2 | 5447 | s = SKIPSPACE1(s); |
ff68c719 | 5448 | |
90771dc0 NC |
5449 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) |
5450 | && intuit_more(s)) { | |
5451 | if (*s == '[') { | |
5452 | PL_tokenbuf[0] = '@'; | |
5453 | if (ckWARN(WARN_SYNTAX)) { | |
c35e046a AL |
5454 | char *t = s+1; |
5455 | ||
5456 | while (isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$') | |
5457 | t++; | |
90771dc0 | 5458 | if (*t++ == ',') { |
29595ff2 | 5459 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
90771dc0 NC |
5460 | while (t < PL_bufend && *t != ']') |
5461 | t++; | |
9014280d | 5462 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
90771dc0 | 5463 | "Multidimensional syntax %.*s not supported", |
36c7798d | 5464 | (int)((t - PL_bufptr) + 1), PL_bufptr); |
90771dc0 | 5465 | } |
748a9306 | 5466 | } |
93a17b20 | 5467 | } |
90771dc0 NC |
5468 | else if (*s == '{') { |
5469 | char *t; | |
5470 | PL_tokenbuf[0] = '%'; | |
5471 | if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX) | |
5472 | && (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
5473 | { | |
5474 | char tmpbuf[sizeof PL_tokenbuf]; | |
c35e046a AL |
5475 | do { |
5476 | t++; | |
5477 | } while (isSPACE(*t)); | |
90771dc0 | 5478 | if (isIDFIRST_lazy_if(t,UTF)) { |
780a5241 | 5479 | STRLEN len; |
90771dc0 | 5480 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, |
780a5241 | 5481 | &len); |
c35e046a AL |
5482 | while (isSPACE(*t)) |
5483 | t++; | |
780a5241 | 5484 | if (*t == ';' && get_cvn_flags(tmpbuf, len, 0)) |
90771dc0 NC |
5485 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
5486 | "You need to quote \"%s\"", | |
5487 | tmpbuf); | |
5488 | } | |
5489 | } | |
5490 | } | |
93a17b20 | 5491 | } |
bbce6d69 | 5492 | |
90771dc0 NC |
5493 | PL_expect = XOPERATOR; |
5494 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { | |
5495 | const bool islop = (PL_last_lop == PL_oldoldbufptr); | |
5496 | if (!islop || PL_last_lop_op == OP_GREPSTART) | |
5497 | PL_expect = XOPERATOR; | |
5498 | else if (strchr("$@\"'`q", *s)) | |
5499 | PL_expect = XTERM; /* e.g. print $fh "foo" */ | |
5500 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) | |
5501 | PL_expect = XTERM; /* e.g. print $fh &sub */ | |
5502 | else if (isIDFIRST_lazy_if(s,UTF)) { | |
5503 | char tmpbuf[sizeof PL_tokenbuf]; | |
5504 | int t2; | |
5505 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
5458a98a | 5506 | if ((t2 = keyword(tmpbuf, len, 0))) { |
90771dc0 NC |
5507 | /* binary operators exclude handle interpretations */ |
5508 | switch (t2) { | |
5509 | case -KEY_x: | |
5510 | case -KEY_eq: | |
5511 | case -KEY_ne: | |
5512 | case -KEY_gt: | |
5513 | case -KEY_lt: | |
5514 | case -KEY_ge: | |
5515 | case -KEY_le: | |
5516 | case -KEY_cmp: | |
5517 | break; | |
5518 | default: | |
5519 | PL_expect = XTERM; /* e.g. print $fh length() */ | |
5520 | break; | |
5521 | } | |
5522 | } | |
5523 | else { | |
5524 | PL_expect = XTERM; /* e.g. print $fh subr() */ | |
84902520 TB |
5525 | } |
5526 | } | |
90771dc0 NC |
5527 | else if (isDIGIT(*s)) |
5528 | PL_expect = XTERM; /* e.g. print $fh 3 */ | |
5529 | else if (*s == '.' && isDIGIT(s[1])) | |
5530 | PL_expect = XTERM; /* e.g. print $fh .3 */ | |
5531 | else if ((*s == '?' || *s == '-' || *s == '+') | |
5532 | && !isSPACE(s[1]) && s[1] != '=') | |
5533 | PL_expect = XTERM; /* e.g. print $fh -1 */ | |
5534 | else if (*s == '/' && !isSPACE(s[1]) && s[1] != '=' | |
5535 | && s[1] != '/') | |
5536 | PL_expect = XTERM; /* e.g. print $fh /.../ | |
5537 | XXX except DORDOR operator | |
5538 | */ | |
5539 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) | |
5540 | && s[2] != '=') | |
5541 | PL_expect = XTERM; /* print $fh <<"EOF" */ | |
93a17b20 | 5542 | } |
bbce6d69 | 5543 | } |
3280af22 | 5544 | PL_pending_ident = '$'; |
79072805 | 5545 | TOKEN('$'); |
378cc40b LW |
5546 | |
5547 | case '@': | |
3280af22 | 5548 | if (PL_expect == XOPERATOR) |
bbce6d69 | 5549 | no_op("Array", s); |
3280af22 NIS |
5550 | PL_tokenbuf[0] = '@'; |
5551 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
5552 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 5553 | PREREF('@'); |
5554 | } | |
3280af22 | 5555 | if (PL_lex_state == LEX_NORMAL) |
29595ff2 | 5556 | s = SKIPSPACE1(s); |
3280af22 | 5557 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 5558 | if (*s == '{') |
3280af22 | 5559 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
5560 | |
5561 | /* Warn about @ where they meant $. */ | |
041457d9 DM |
5562 | if (*s == '[' || *s == '{') { |
5563 | if (ckWARN(WARN_SYNTAX)) { | |
f54cb97a | 5564 | const char *t = s + 1; |
7e2040f0 | 5565 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
5566 | t++; |
5567 | if (*t == '}' || *t == ']') { | |
5568 | t++; | |
29595ff2 | 5569 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
9014280d | 5570 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 5571 | "Scalar value %.*s better written as $%.*s", |
36c7798d DM |
5572 | (int)(t-PL_bufptr), PL_bufptr, |
5573 | (int)(t-PL_bufptr-1), PL_bufptr+1); | |
a0d0e21e | 5574 | } |
93a17b20 LW |
5575 | } |
5576 | } | |
463ee0b2 | 5577 | } |
3280af22 | 5578 | PL_pending_ident = '@'; |
79072805 | 5579 | TERM('@'); |
378cc40b | 5580 | |
c963b151 | 5581 | case '/': /* may be division, defined-or, or pattern */ |
6f33ba73 RGS |
5582 | if (PL_expect == XTERMORDORDOR && s[1] == '/') { |
5583 | s += 2; | |
5584 | AOPERATOR(DORDOR); | |
5585 | } | |
c963b151 | 5586 | case '?': /* may either be conditional or pattern */ |
be25f609 | 5587 | if (PL_expect == XOPERATOR) { |
90771dc0 | 5588 | char tmp = *s++; |
c963b151 | 5589 | if(tmp == '?') { |
be25f609 | 5590 | OPERATOR('?'); |
c963b151 BD |
5591 | } |
5592 | else { | |
5593 | tmp = *s++; | |
5594 | if(tmp == '/') { | |
5595 | /* A // operator. */ | |
5596 | AOPERATOR(DORDOR); | |
5597 | } | |
5598 | else { | |
5599 | s--; | |
5600 | Mop(OP_DIVIDE); | |
5601 | } | |
5602 | } | |
5603 | } | |
5604 | else { | |
5605 | /* Disable warning on "study /blah/" */ | |
5606 | if (PL_oldoldbufptr == PL_last_uni | |
5607 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
5608 | || memNE(PL_last_uni, "study", 5) | |
5609 | || isALNUM_lazy_if(PL_last_uni+5,UTF) | |
5610 | )) | |
5611 | check_uni(); | |
5612 | s = scan_pat(s,OP_MATCH); | |
5613 | TERM(sublex_start()); | |
5614 | } | |
378cc40b LW |
5615 | |
5616 | case '.': | |
51882d45 GS |
5617 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
5618 | #ifdef PERL_STRICT_CR | |
5619 | && s[1] == '\n' | |
5620 | #else | |
5621 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
5622 | #endif | |
5623 | && (s == PL_linestart || s[-1] == '\n') ) | |
5624 | { | |
3280af22 NIS |
5625 | PL_lex_formbrack = 0; |
5626 | PL_expect = XSTATE; | |
79072805 LW |
5627 | goto rightbracket; |
5628 | } | |
be25f609 | 5629 | if (PL_expect == XSTATE && s[1] == '.' && s[2] == '.') { |
5630 | s += 3; | |
5631 | OPERATOR(YADAYADA); | |
5632 | } | |
3280af22 | 5633 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
90771dc0 | 5634 | char tmp = *s++; |
a687059c LW |
5635 | if (*s == tmp) { |
5636 | s++; | |
2f3197b3 LW |
5637 | if (*s == tmp) { |
5638 | s++; | |
6154021b | 5639 | pl_yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
5640 | } |
5641 | else | |
6154021b | 5642 | pl_yylval.ival = 0; |
378cc40b | 5643 | OPERATOR(DOTDOT); |
a687059c | 5644 | } |
79072805 | 5645 | Aop(OP_CONCAT); |
378cc40b LW |
5646 | } |
5647 | /* FALL THROUGH */ | |
5648 | case '0': case '1': case '2': case '3': case '4': | |
5649 | case '5': case '6': case '7': case '8': case '9': | |
6154021b | 5650 | s = scan_num(s, &pl_yylval); |
931e0695 | 5651 | DEBUG_T( { printbuf("### Saw number in %s\n", s); } ); |
3280af22 | 5652 | if (PL_expect == XOPERATOR) |
8990e307 | 5653 | no_op("Number",s); |
79072805 LW |
5654 | TERM(THING); |
5655 | ||
5656 | case '\'': | |
5db06880 | 5657 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5658 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
5659 | if (PL_expect == XOPERATOR) { |
5660 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
8290c323 | 5661 | return deprecate_commaless_var_list(); |
a0d0e21e | 5662 | } |
463ee0b2 | 5663 | else |
8990e307 | 5664 | no_op("String",s); |
463ee0b2 | 5665 | } |
79072805 | 5666 | if (!s) |
d4c19fe8 | 5667 | missingterm(NULL); |
6154021b | 5668 | pl_yylval.ival = OP_CONST; |
79072805 LW |
5669 | TERM(sublex_start()); |
5670 | ||
5671 | case '"': | |
5db06880 | 5672 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5673 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
5674 | if (PL_expect == XOPERATOR) { |
5675 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
8290c323 | 5676 | return deprecate_commaless_var_list(); |
a0d0e21e | 5677 | } |
463ee0b2 | 5678 | else |
8990e307 | 5679 | no_op("String",s); |
463ee0b2 | 5680 | } |
79072805 | 5681 | if (!s) |
d4c19fe8 | 5682 | missingterm(NULL); |
6154021b | 5683 | pl_yylval.ival = OP_CONST; |
cfd0369c NC |
5684 | /* FIXME. I think that this can be const if char *d is replaced by |
5685 | more localised variables. */ | |
3280af22 | 5686 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
63cd0674 | 5687 | if (*d == '$' || *d == '@' || *d == '\\' || !UTF8_IS_INVARIANT((U8)*d)) { |
6154021b | 5688 | pl_yylval.ival = OP_STRINGIFY; |
4633a7c4 LW |
5689 | break; |
5690 | } | |
5691 | } | |
79072805 LW |
5692 | TERM(sublex_start()); |
5693 | ||
5694 | case '`': | |
5db06880 | 5695 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5696 | DEBUG_T( { printbuf("### Saw backtick string before %s\n", s); } ); |
3280af22 | 5697 | if (PL_expect == XOPERATOR) |
8990e307 | 5698 | no_op("Backticks",s); |
79072805 | 5699 | if (!s) |
d4c19fe8 | 5700 | missingterm(NULL); |
9b201d7d | 5701 | readpipe_override(); |
79072805 LW |
5702 | TERM(sublex_start()); |
5703 | ||
5704 | case '\\': | |
5705 | s++; | |
a2a5de95 NC |
5706 | if (PL_lex_inwhat && isDIGIT(*s)) |
5707 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression", | |
5708 | *s, *s); | |
3280af22 | 5709 | if (PL_expect == XOPERATOR) |
8990e307 | 5710 | no_op("Backslash",s); |
79072805 LW |
5711 | OPERATOR(REFGEN); |
5712 | ||
a7cb1f99 | 5713 | case 'v': |
e526c9e6 | 5714 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
f54cb97a | 5715 | char *start = s + 2; |
dd629d5b | 5716 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
5717 | start++; |
5718 | if (*start == '.' && isDIGIT(start[1])) { | |
6154021b | 5719 | s = scan_num(s, &pl_yylval); |
a7cb1f99 GS |
5720 | TERM(THING); |
5721 | } | |
e526c9e6 | 5722 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
6f33ba73 RGS |
5723 | else if (!isALPHA(*start) && (PL_expect == XTERM |
5724 | || PL_expect == XREF || PL_expect == XSTATE | |
5725 | || PL_expect == XTERMORDORDOR)) { | |
9bde8eb0 | 5726 | GV *const gv = gv_fetchpvn_flags(s, start - s, 0, SVt_PVCV); |
e526c9e6 | 5727 | if (!gv) { |
6154021b | 5728 | s = scan_num(s, &pl_yylval); |
e526c9e6 GS |
5729 | TERM(THING); |
5730 | } | |
5731 | } | |
a7cb1f99 GS |
5732 | } |
5733 | goto keylookup; | |
79072805 | 5734 | case 'x': |
3280af22 | 5735 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
5736 | s++; |
5737 | Mop(OP_REPEAT); | |
2f3197b3 | 5738 | } |
79072805 LW |
5739 | goto keylookup; |
5740 | ||
378cc40b | 5741 | case '_': |
79072805 LW |
5742 | case 'a': case 'A': |
5743 | case 'b': case 'B': | |
5744 | case 'c': case 'C': | |
5745 | case 'd': case 'D': | |
5746 | case 'e': case 'E': | |
5747 | case 'f': case 'F': | |
5748 | case 'g': case 'G': | |
5749 | case 'h': case 'H': | |
5750 | case 'i': case 'I': | |
5751 | case 'j': case 'J': | |
5752 | case 'k': case 'K': | |
5753 | case 'l': case 'L': | |
5754 | case 'm': case 'M': | |
5755 | case 'n': case 'N': | |
5756 | case 'o': case 'O': | |
5757 | case 'p': case 'P': | |
5758 | case 'q': case 'Q': | |
5759 | case 'r': case 'R': | |
5760 | case 's': case 'S': | |
5761 | case 't': case 'T': | |
5762 | case 'u': case 'U': | |
a7cb1f99 | 5763 | case 'V': |
79072805 LW |
5764 | case 'w': case 'W': |
5765 | case 'X': | |
5766 | case 'y': case 'Y': | |
5767 | case 'z': case 'Z': | |
5768 | ||
49dc05e3 | 5769 | keylookup: { |
88e1f1a2 | 5770 | bool anydelim; |
90771dc0 | 5771 | I32 tmp; |
10edeb5d JH |
5772 | |
5773 | orig_keyword = 0; | |
5774 | gv = NULL; | |
5775 | gvp = NULL; | |
49dc05e3 | 5776 | |
3280af22 NIS |
5777 | PL_bufptr = s; |
5778 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 5779 | |
5780 | /* Some keywords can be followed by any delimiter, including ':' */ | |
88e1f1a2 | 5781 | anydelim = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
155aba94 GS |
5782 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || |
5783 | (PL_tokenbuf[0] == 'q' && | |
5784 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 5785 | |
5786 | /* x::* is just a word, unless x is "CORE" */ | |
88e1f1a2 | 5787 | if (!anydelim && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
5788 | goto just_a_word; |
5789 | ||
3643fb5f | 5790 | d = s; |
3280af22 | 5791 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
5792 | d++; /* no comments skipped here, or s### is misparsed */ |
5793 | ||
748a9306 | 5794 | /* Is this a word before a => operator? */ |
1c3923b3 | 5795 | if (*d == '=' && d[1] == '>') { |
748a9306 | 5796 | CLINE; |
6154021b | 5797 | pl_yylval.opval |
d0a148a6 NC |
5798 | = (OP*)newSVOP(OP_CONST, 0, |
5799 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
6154021b | 5800 | pl_yylval.opval->op_private = OPpCONST_BARE; |
748a9306 LW |
5801 | TERM(WORD); |
5802 | } | |
5803 | ||
88e1f1a2 JV |
5804 | /* Check for plugged-in keyword */ |
5805 | { | |
5806 | OP *o; | |
5807 | int result; | |
5808 | char *saved_bufptr = PL_bufptr; | |
5809 | PL_bufptr = s; | |
5810 | result = CALL_FPTR(PL_keyword_plugin)(aTHX_ PL_tokenbuf, len, &o); | |
5811 | s = PL_bufptr; | |
5812 | if (result == KEYWORD_PLUGIN_DECLINE) { | |
5813 | /* not a plugged-in keyword */ | |
5814 | PL_bufptr = saved_bufptr; | |
5815 | } else if (result == KEYWORD_PLUGIN_STMT) { | |
5816 | pl_yylval.opval = o; | |
5817 | CLINE; | |
5818 | PL_expect = XSTATE; | |
5819 | return REPORT(PLUGSTMT); | |
5820 | } else if (result == KEYWORD_PLUGIN_EXPR) { | |
5821 | pl_yylval.opval = o; | |
5822 | CLINE; | |
5823 | PL_expect = XOPERATOR; | |
5824 | return REPORT(PLUGEXPR); | |
5825 | } else { | |
5826 | Perl_croak(aTHX_ "Bad plugin affecting keyword '%s'", | |
5827 | PL_tokenbuf); | |
5828 | } | |
5829 | } | |
5830 | ||
5831 | /* Check for built-in keyword */ | |
5832 | tmp = keyword(PL_tokenbuf, len, 0); | |
5833 | ||
5834 | /* Is this a label? */ | |
5835 | if (!anydelim && PL_expect == XSTATE | |
5836 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
5837 | if (tmp) | |
5838 | Perl_croak(aTHX_ "Can't use keyword '%s' as a label", PL_tokenbuf); | |
5839 | s = d + 1; | |
5840 | pl_yylval.pval = CopLABEL_alloc(PL_tokenbuf); | |
5841 | CLINE; | |
5842 | TOKEN(LABEL); | |
5843 | } | |
5844 | ||
a0d0e21e | 5845 | if (tmp < 0) { /* second-class keyword? */ |
cbbf8932 AL |
5846 | GV *ogv = NULL; /* override (winner) */ |
5847 | GV *hgv = NULL; /* hidden (loser) */ | |
3280af22 | 5848 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 5849 | CV *cv; |
90e5519e | 5850 | if ((gv = gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVCV)) && |
56f7f34b CS |
5851 | (cv = GvCVu(gv))) |
5852 | { | |
5853 | if (GvIMPORTED_CV(gv)) | |
5854 | ogv = gv; | |
5855 | else if (! CvMETHOD(cv)) | |
5856 | hgv = gv; | |
5857 | } | |
5858 | if (!ogv && | |
3280af22 | 5859 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
9e0d86f8 | 5860 | (gv = *gvp) && isGV_with_GP(gv) && |
56f7f34b CS |
5861 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
5862 | { | |
5863 | ogv = gv; | |
5864 | } | |
5865 | } | |
5866 | if (ogv) { | |
30fe34ed | 5867 | orig_keyword = tmp; |
56f7f34b | 5868 | tmp = 0; /* overridden by import or by GLOBAL */ |
6e7b2336 GS |
5869 | } |
5870 | else if (gv && !gvp | |
5871 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
47f9f84c | 5872 | && GvCVu(gv)) |
6e7b2336 GS |
5873 | { |
5874 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 5875 | } |
56f7f34b CS |
5876 | else { /* no override */ |
5877 | tmp = -tmp; | |
a2a5de95 NC |
5878 | if (tmp == KEY_dump) { |
5879 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
5880 | "dump() better written as CORE::dump()"); | |
ac206dc8 | 5881 | } |
a0714e2c | 5882 | gv = NULL; |
56f7f34b | 5883 | gvp = 0; |
a2a5de95 NC |
5884 | if (hgv && tmp != KEY_x && tmp != KEY_CORE) /* never ambiguous */ |
5885 | Perl_ck_warner(aTHX_ packWARN(WARN_AMBIGUOUS), | |
5886 | "Ambiguous call resolved as CORE::%s(), %s", | |
5887 | GvENAME(hgv), "qualify as such or use &"); | |
49dc05e3 | 5888 | } |
a0d0e21e LW |
5889 | } |
5890 | ||
5891 | reserved_word: | |
5892 | switch (tmp) { | |
79072805 LW |
5893 | |
5894 | default: /* not a keyword */ | |
0bfa2a8a NC |
5895 | /* Trade off - by using this evil construction we can pull the |
5896 | variable gv into the block labelled keylookup. If not, then | |
5897 | we have to give it function scope so that the goto from the | |
5898 | earlier ':' case doesn't bypass the initialisation. */ | |
5899 | if (0) { | |
5900 | just_a_word_zero_gv: | |
5901 | gv = NULL; | |
5902 | gvp = NULL; | |
8bee0991 | 5903 | orig_keyword = 0; |
0bfa2a8a | 5904 | } |
93a17b20 | 5905 | just_a_word: { |
96e4d5b1 | 5906 | SV *sv; |
ce29ac45 | 5907 | int pkgname = 0; |
f54cb97a | 5908 | const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
f7461760 | 5909 | OP *rv2cv_op; |
5069cc75 | 5910 | CV *cv; |
5db06880 | 5911 | #ifdef PERL_MAD |
cd81e915 | 5912 | SV *nextPL_nextwhite = 0; |
5db06880 NC |
5913 | #endif |
5914 | ||
8990e307 LW |
5915 | |
5916 | /* Get the rest if it looks like a package qualifier */ | |
5917 | ||
155aba94 | 5918 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 5919 | STRLEN morelen; |
3280af22 | 5920 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
5921 | TRUE, &morelen); |
5922 | if (!morelen) | |
cea2e8a9 | 5923 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 5924 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 5925 | len += morelen; |
ce29ac45 | 5926 | pkgname = 1; |
a0d0e21e | 5927 | } |
8990e307 | 5928 | |
3280af22 NIS |
5929 | if (PL_expect == XOPERATOR) { |
5930 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 5931 | CopLINE_dec(PL_curcop); |
f1f66076 | 5932 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), "%s", PL_warn_nosemi); |
57843af0 | 5933 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
5934 | } |
5935 | else | |
54310121 | 5936 | no_op("Bareword",s); |
463ee0b2 | 5937 | } |
8990e307 | 5938 | |
c3e0f903 GS |
5939 | /* Look for a subroutine with this name in current package, |
5940 | unless name is "Foo::", in which case Foo is a bearword | |
5941 | (and a package name). */ | |
5942 | ||
5db06880 | 5943 | if (len > 2 && !PL_madskills && |
3280af22 | 5944 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 5945 | { |
f776e3cd | 5946 | if (ckWARN(WARN_BAREWORD) |
90e5519e | 5947 | && ! gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVHV)) |
9014280d | 5948 | Perl_warner(aTHX_ packWARN(WARN_BAREWORD), |
599cee73 | 5949 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 5950 | PL_tokenbuf); |
c3e0f903 | 5951 | len -= 2; |
3280af22 | 5952 | PL_tokenbuf[len] = '\0'; |
a0714e2c | 5953 | gv = NULL; |
c3e0f903 GS |
5954 | gvp = 0; |
5955 | } | |
5956 | else { | |
62d55b22 NC |
5957 | if (!gv) { |
5958 | /* Mustn't actually add anything to a symbol table. | |
5959 | But also don't want to "initialise" any placeholder | |
5960 | constants that might already be there into full | |
5961 | blown PVGVs with attached PVCV. */ | |
90e5519e NC |
5962 | gv = gv_fetchpvn_flags(PL_tokenbuf, len, |
5963 | GV_NOADD_NOINIT, SVt_PVCV); | |
62d55b22 | 5964 | } |
b3d904f3 | 5965 | len = 0; |
c3e0f903 GS |
5966 | } |
5967 | ||
5968 | /* if we saw a global override before, get the right name */ | |
8990e307 | 5969 | |
49dc05e3 | 5970 | if (gvp) { |
396482e1 | 5971 | sv = newSVpvs("CORE::GLOBAL::"); |
3280af22 | 5972 | sv_catpv(sv,PL_tokenbuf); |
49dc05e3 | 5973 | } |
8a7a129d NC |
5974 | else { |
5975 | /* If len is 0, newSVpv does strlen(), which is correct. | |
5976 | If len is non-zero, then it will be the true length, | |
5977 | and so the scalar will be created correctly. */ | |
5978 | sv = newSVpv(PL_tokenbuf,len); | |
5979 | } | |
5db06880 | 5980 | #ifdef PERL_MAD |
cd81e915 NC |
5981 | if (PL_madskills && !PL_thistoken) { |
5982 | char *start = SvPVX(PL_linestr) + PL_realtokenstart; | |
9ff8e806 | 5983 | PL_thistoken = newSVpvn(start,s - start); |
cd81e915 | 5984 | PL_realtokenstart = s - SvPVX(PL_linestr); |
5db06880 NC |
5985 | } |
5986 | #endif | |
8990e307 | 5987 | |
a0d0e21e LW |
5988 | /* Presume this is going to be a bareword of some sort. */ |
5989 | ||
5990 | CLINE; | |
6154021b RGS |
5991 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
5992 | pl_yylval.opval->op_private = OPpCONST_BARE; | |
8f8cf39c JH |
5993 | /* UTF-8 package name? */ |
5994 | if (UTF && !IN_BYTES && | |
95a20fc0 | 5995 | is_utf8_string((U8*)SvPVX_const(sv), SvCUR(sv))) |
8f8cf39c | 5996 | SvUTF8_on(sv); |
a0d0e21e | 5997 | |
c3e0f903 GS |
5998 | /* And if "Foo::", then that's what it certainly is. */ |
5999 | ||
6000 | if (len) | |
6001 | goto safe_bareword; | |
6002 | ||
f7461760 Z |
6003 | cv = NULL; |
6004 | { | |
6005 | OP *const_op = newSVOP(OP_CONST, 0, SvREFCNT_inc(sv)); | |
6006 | const_op->op_private = OPpCONST_BARE; | |
6007 | rv2cv_op = newCVREF(0, const_op); | |
6008 | } | |
6009 | if (rv2cv_op->op_type == OP_RV2CV && | |
6010 | (rv2cv_op->op_flags & OPf_KIDS)) { | |
6011 | OP *rv_op = cUNOPx(rv2cv_op)->op_first; | |
6012 | switch (rv_op->op_type) { | |
6013 | case OP_CONST: { | |
6014 | SV *sv = cSVOPx_sv(rv_op); | |
6015 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) | |
6016 | cv = (CV*)SvRV(sv); | |
6017 | } break; | |
6018 | case OP_GV: { | |
6019 | GV *gv = cGVOPx_gv(rv_op); | |
6020 | CV *maybe_cv = GvCVu(gv); | |
6021 | if (maybe_cv && SvTYPE((SV*)maybe_cv) == SVt_PVCV) | |
6022 | cv = maybe_cv; | |
6023 | } break; | |
6024 | } | |
6025 | } | |
5069cc75 | 6026 | |
8990e307 LW |
6027 | /* See if it's the indirect object for a list operator. */ |
6028 | ||
3280af22 NIS |
6029 | if (PL_oldoldbufptr && |
6030 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
6031 | (PL_oldoldbufptr == PL_last_lop |
6032 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 6033 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
6034 | (PL_expect == XREF || |
6035 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 6036 | { |
748a9306 LW |
6037 | bool immediate_paren = *s == '('; |
6038 | ||
a0d0e21e | 6039 | /* (Now we can afford to cross potential line boundary.) */ |
cd81e915 | 6040 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5db06880 | 6041 | #ifdef PERL_MAD |
cd81e915 | 6042 | PL_nextwhite = nextPL_nextwhite; /* assume no & deception */ |
5db06880 | 6043 | #endif |
a0d0e21e LW |
6044 | |
6045 | /* Two barewords in a row may indicate method call. */ | |
6046 | ||
62d55b22 | 6047 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && |
f7461760 Z |
6048 | (tmp = intuit_method(s, gv, cv))) { |
6049 | op_free(rv2cv_op); | |
bbf60fe6 | 6050 | return REPORT(tmp); |
f7461760 | 6051 | } |
a0d0e21e LW |
6052 | |
6053 | /* If not a declared subroutine, it's an indirect object. */ | |
6054 | /* (But it's an indir obj regardless for sort.) */ | |
7294df96 | 6055 | /* Also, if "_" follows a filetest operator, it's a bareword */ |
a0d0e21e | 6056 | |
7294df96 RGS |
6057 | if ( |
6058 | ( !immediate_paren && (PL_last_lop_op == OP_SORT || | |
f7461760 | 6059 | (!cv && |
a9ef352a | 6060 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 6061 | PL_last_lop_op != OP_GREPSTART)))) |
7294df96 RGS |
6062 | || (PL_tokenbuf[0] == '_' && PL_tokenbuf[1] == '\0' |
6063 | && ((PL_opargs[PL_last_lop_op] & OA_CLASS_MASK) == OA_FILESTATOP)) | |
6064 | ) | |
a9ef352a | 6065 | { |
3280af22 | 6066 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 6067 | goto bareword; |
93a17b20 LW |
6068 | } |
6069 | } | |
8990e307 | 6070 | |
3280af22 | 6071 | PL_expect = XOPERATOR; |
5db06880 NC |
6072 | #ifdef PERL_MAD |
6073 | if (isSPACE(*s)) | |
cd81e915 NC |
6074 | s = SKIPSPACE2(s,nextPL_nextwhite); |
6075 | PL_nextwhite = nextPL_nextwhite; | |
5db06880 | 6076 | #else |
8990e307 | 6077 | s = skipspace(s); |
5db06880 | 6078 | #endif |
1c3923b3 GS |
6079 | |
6080 | /* Is this a word before a => operator? */ | |
ce29ac45 | 6081 | if (*s == '=' && s[1] == '>' && !pkgname) { |
f7461760 | 6082 | op_free(rv2cv_op); |
1c3923b3 | 6083 | CLINE; |
6154021b | 6084 | sv_setpv(((SVOP*)pl_yylval.opval)->op_sv, PL_tokenbuf); |
0064a8a9 | 6085 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
6154021b | 6086 | SvUTF8_on(((SVOP*)pl_yylval.opval)->op_sv); |
1c3923b3 GS |
6087 | TERM(WORD); |
6088 | } | |
6089 | ||
6090 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 6091 | if (*s == '(') { |
79072805 | 6092 | CLINE; |
5069cc75 | 6093 | if (cv) { |
c35e046a AL |
6094 | d = s + 1; |
6095 | while (SPACE_OR_TAB(*d)) | |
6096 | d++; | |
f7461760 | 6097 | if (*d == ')' && (sv = cv_const_sv(cv))) { |
96e4d5b1 | 6098 | s = d + 1; |
c631f32b | 6099 | goto its_constant; |
96e4d5b1 | 6100 | } |
6101 | } | |
5db06880 NC |
6102 | #ifdef PERL_MAD |
6103 | if (PL_madskills) { | |
cd81e915 NC |
6104 | PL_nextwhite = PL_thiswhite; |
6105 | PL_thiswhite = 0; | |
5db06880 | 6106 | } |
cd81e915 | 6107 | start_force(PL_curforce); |
5db06880 | 6108 | #endif |
6154021b | 6109 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
3280af22 | 6110 | PL_expect = XOPERATOR; |
5db06880 NC |
6111 | #ifdef PERL_MAD |
6112 | if (PL_madskills) { | |
cd81e915 NC |
6113 | PL_nextwhite = nextPL_nextwhite; |
6114 | curmad('X', PL_thistoken); | |
6b29d1f5 | 6115 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
6116 | } |
6117 | #endif | |
f7461760 | 6118 | op_free(rv2cv_op); |
93a17b20 | 6119 | force_next(WORD); |
6154021b | 6120 | pl_yylval.ival = 0; |
463ee0b2 | 6121 | TOKEN('&'); |
79072805 | 6122 | } |
93a17b20 | 6123 | |
a0d0e21e | 6124 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 6125 | |
f7461760 Z |
6126 | if ((*s == '$' || *s == '{') && !cv) { |
6127 | op_free(rv2cv_op); | |
3280af22 NIS |
6128 | PL_last_lop = PL_oldbufptr; |
6129 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 6130 | PREBLOCK(METHOD); |
463ee0b2 LW |
6131 | } |
6132 | ||
8990e307 LW |
6133 | /* If followed by a bareword, see if it looks like indir obj. */ |
6134 | ||
30fe34ed RGS |
6135 | if (!orig_keyword |
6136 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
f7461760 Z |
6137 | && (tmp = intuit_method(s, gv, cv))) { |
6138 | op_free(rv2cv_op); | |
bbf60fe6 | 6139 | return REPORT(tmp); |
f7461760 | 6140 | } |
93a17b20 | 6141 | |
8990e307 LW |
6142 | /* Not a method, so call it a subroutine (if defined) */ |
6143 | ||
5069cc75 | 6144 | if (cv) { |
9b387841 NC |
6145 | if (lastchar == '-') |
6146 | Perl_ck_warner_d(aTHX_ packWARN(WARN_AMBIGUOUS), | |
6147 | "Ambiguous use of -%s resolved as -&%s()", | |
6148 | PL_tokenbuf, PL_tokenbuf); | |
89bfa8cd | 6149 | /* Check for a constant sub */ |
f7461760 | 6150 | if ((sv = cv_const_sv(cv))) { |
96e4d5b1 | 6151 | its_constant: |
f7461760 | 6152 | op_free(rv2cv_op); |
6154021b RGS |
6153 | SvREFCNT_dec(((SVOP*)pl_yylval.opval)->op_sv); |
6154 | ((SVOP*)pl_yylval.opval)->op_sv = SvREFCNT_inc_simple(sv); | |
6155 | pl_yylval.opval->op_private = 0; | |
96e4d5b1 | 6156 | TOKEN(WORD); |
89bfa8cd | 6157 | } |
6158 | ||
6154021b | 6159 | op_free(pl_yylval.opval); |
f7461760 | 6160 | pl_yylval.opval = rv2cv_op; |
6154021b | 6161 | pl_yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
7a52d87a | 6162 | PL_last_lop = PL_oldbufptr; |
bf848113 | 6163 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 | 6164 | /* Is there a prototype? */ |
5db06880 NC |
6165 | if ( |
6166 | #ifdef PERL_MAD | |
6167 | cv && | |
6168 | #endif | |
d9f2850e RGS |
6169 | SvPOK(cv)) |
6170 | { | |
5f66b61c | 6171 | STRLEN protolen; |
daba3364 | 6172 | const char *proto = SvPV_const(MUTABLE_SV(cv), protolen); |
5f66b61c | 6173 | if (!protolen) |
4633a7c4 | 6174 | TERM(FUNC0SUB); |
8c28b960 | 6175 | if ((*proto == '$' || *proto == '_') && proto[1] == '\0') |
4633a7c4 | 6176 | OPERATOR(UNIOPSUB); |
0f5d0394 AE |
6177 | while (*proto == ';') |
6178 | proto++; | |
7a52d87a | 6179 | if (*proto == '&' && *s == '{') { |
49a54bbe NC |
6180 | if (PL_curstash) |
6181 | sv_setpvs(PL_subname, "__ANON__"); | |
6182 | else | |
6183 | sv_setpvs(PL_subname, "__ANON__::__ANON__"); | |
4633a7c4 LW |
6184 | PREBLOCK(LSTOPSUB); |
6185 | } | |
a9ef352a | 6186 | } |
5db06880 NC |
6187 | #ifdef PERL_MAD |
6188 | { | |
6189 | if (PL_madskills) { | |
cd81e915 NC |
6190 | PL_nextwhite = PL_thiswhite; |
6191 | PL_thiswhite = 0; | |
5db06880 | 6192 | } |
cd81e915 | 6193 | start_force(PL_curforce); |
6154021b | 6194 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
5db06880 NC |
6195 | PL_expect = XTERM; |
6196 | if (PL_madskills) { | |
cd81e915 NC |
6197 | PL_nextwhite = nextPL_nextwhite; |
6198 | curmad('X', PL_thistoken); | |
6b29d1f5 | 6199 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
6200 | } |
6201 | force_next(WORD); | |
6202 | TOKEN(NOAMP); | |
6203 | } | |
6204 | } | |
6205 | ||
6206 | /* Guess harder when madskills require "best effort". */ | |
6207 | if (PL_madskills && (!gv || !GvCVu(gv))) { | |
6208 | int probable_sub = 0; | |
6209 | if (strchr("\"'`$@%0123456789!*+{[<", *s)) | |
6210 | probable_sub = 1; | |
6211 | else if (isALPHA(*s)) { | |
6212 | char tmpbuf[1024]; | |
6213 | STRLEN tmplen; | |
6214 | d = s; | |
6215 | d = scan_word(d, tmpbuf, sizeof tmpbuf, TRUE, &tmplen); | |
5458a98a | 6216 | if (!keyword(tmpbuf, tmplen, 0)) |
5db06880 NC |
6217 | probable_sub = 1; |
6218 | else { | |
6219 | while (d < PL_bufend && isSPACE(*d)) | |
6220 | d++; | |
6221 | if (*d == '=' && d[1] == '>') | |
6222 | probable_sub = 1; | |
6223 | } | |
6224 | } | |
6225 | if (probable_sub) { | |
7a6d04f4 | 6226 | gv = gv_fetchpv(PL_tokenbuf, GV_ADD, SVt_PVCV); |
6154021b | 6227 | op_free(pl_yylval.opval); |
f7461760 | 6228 | pl_yylval.opval = rv2cv_op; |
6154021b | 6229 | pl_yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
5db06880 NC |
6230 | PL_last_lop = PL_oldbufptr; |
6231 | PL_last_lop_op = OP_ENTERSUB; | |
cd81e915 NC |
6232 | PL_nextwhite = PL_thiswhite; |
6233 | PL_thiswhite = 0; | |
6234 | start_force(PL_curforce); | |
6154021b | 6235 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
5db06880 | 6236 | PL_expect = XTERM; |
cd81e915 NC |
6237 | PL_nextwhite = nextPL_nextwhite; |
6238 | curmad('X', PL_thistoken); | |
6b29d1f5 | 6239 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
6240 | force_next(WORD); |
6241 | TOKEN(NOAMP); | |
6242 | } | |
6243 | #else | |
6154021b | 6244 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
3280af22 | 6245 | PL_expect = XTERM; |
8990e307 LW |
6246 | force_next(WORD); |
6247 | TOKEN(NOAMP); | |
5db06880 | 6248 | #endif |
8990e307 | 6249 | } |
748a9306 | 6250 | |
8990e307 LW |
6251 | /* Call it a bare word */ |
6252 | ||
5603f27d | 6253 | if (PL_hints & HINT_STRICT_SUBS) |
6154021b | 6254 | pl_yylval.opval->op_private |= OPpCONST_STRICT; |
5603f27d | 6255 | else { |
9a073a1d RGS |
6256 | bareword: |
6257 | /* after "print" and similar functions (corresponding to | |
6258 | * "F? L" in opcode.pl), whatever wasn't already parsed as | |
6259 | * a filehandle should be subject to "strict subs". | |
6260 | * Likewise for the optional indirect-object argument to system | |
6261 | * or exec, which can't be a bareword */ | |
6262 | if ((PL_last_lop_op == OP_PRINT | |
6263 | || PL_last_lop_op == OP_PRTF | |
6264 | || PL_last_lop_op == OP_SAY | |
6265 | || PL_last_lop_op == OP_SYSTEM | |
6266 | || PL_last_lop_op == OP_EXEC) | |
6267 | && (PL_hints & HINT_STRICT_SUBS)) | |
6268 | pl_yylval.opval->op_private |= OPpCONST_STRICT; | |
041457d9 DM |
6269 | if (lastchar != '-') { |
6270 | if (ckWARN(WARN_RESERVED)) { | |
c35e046a AL |
6271 | d = PL_tokenbuf; |
6272 | while (isLOWER(*d)) | |
6273 | d++; | |
da51bb9b | 6274 | if (!*d && !gv_stashpv(PL_tokenbuf, 0)) |
9014280d | 6275 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
6276 | PL_tokenbuf); |
6277 | } | |
748a9306 LW |
6278 | } |
6279 | } | |
f7461760 | 6280 | op_free(rv2cv_op); |
c3e0f903 GS |
6281 | |
6282 | safe_bareword: | |
9b387841 NC |
6283 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&')) { |
6284 | Perl_ck_warner_d(aTHX_ packWARN(WARN_AMBIGUOUS), | |
6285 | "Operator or semicolon missing before %c%s", | |
6286 | lastchar, PL_tokenbuf); | |
6287 | Perl_ck_warner_d(aTHX_ packWARN(WARN_AMBIGUOUS), | |
6288 | "Ambiguous use of %c resolved as operator %c", | |
6289 | lastchar, lastchar); | |
748a9306 | 6290 | } |
93a17b20 | 6291 | TOKEN(WORD); |
79072805 | 6292 | } |
79072805 | 6293 | |
68dc0745 | 6294 | case KEY___FILE__: |
6154021b | 6295 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 6296 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 6297 | TERM(THING); |
6298 | ||
79072805 | 6299 | case KEY___LINE__: |
6154021b | 6300 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 6301 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 6302 | TERM(THING); |
68dc0745 | 6303 | |
6304 | case KEY___PACKAGE__: | |
6154021b | 6305 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
3280af22 | 6306 | (PL_curstash |
5aaec2b4 | 6307 | ? newSVhek(HvNAME_HEK(PL_curstash)) |
3280af22 | 6308 | : &PL_sv_undef)); |
79072805 | 6309 | TERM(THING); |
79072805 | 6310 | |
e50aee73 | 6311 | case KEY___DATA__: |
79072805 LW |
6312 | case KEY___END__: { |
6313 | GV *gv; | |
3280af22 | 6314 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
bfed75c6 | 6315 | const char *pname = "main"; |
3280af22 | 6316 | if (PL_tokenbuf[2] == 'D') |
bfcb3514 | 6317 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
f776e3cd NC |
6318 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD, |
6319 | SVt_PVIO); | |
a5f75d66 | 6320 | GvMULTI_on(gv); |
79072805 | 6321 | if (!GvIO(gv)) |
a0d0e21e | 6322 | GvIOp(gv) = newIO(); |
3280af22 | 6323 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
6324 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
6325 | { | |
f54cb97a | 6326 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
6327 | fcntl(fd,F_SETFD,fd >= 3); |
6328 | } | |
79072805 | 6329 | #endif |
fd049845 | 6330 | /* Mark this internal pseudo-handle as clean */ |
6331 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
4c84d7f2 | 6332 | if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 6333 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 6334 | else |
50952442 | 6335 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
6336 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
6337 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 6338 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 6339 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
6340 | if (PL_bufend-PL_bufptr > 2 |
6341 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
6342 | { |
6343 | Off_t loc = 0; | |
50952442 | 6344 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
6345 | loc = PerlIO_tell(PL_rsfp); |
6346 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
6347 | } | |
2986a63f JH |
6348 | #ifdef NETWARE |
6349 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
6350 | #else | |
c39cd008 | 6351 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 6352 | #endif /* NETWARE */ |
1143fce0 JH |
6353 | #ifdef PERLIO_IS_STDIO /* really? */ |
6354 | # if defined(__BORLANDC__) | |
cb359b41 JH |
6355 | /* XXX see note in do_binmode() */ |
6356 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
6357 | # endif |
6358 | #endif | |
c39cd008 GS |
6359 | if (loc > 0) |
6360 | PerlIO_seek(PL_rsfp, loc, 0); | |
6361 | } | |
6362 | } | |
6363 | #endif | |
7948272d | 6364 | #ifdef PERLIO_LAYERS |
52d2e0f4 JH |
6365 | if (!IN_BYTES) { |
6366 | if (UTF) | |
6367 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
6368 | else if (PL_encoding) { | |
6369 | SV *name; | |
6370 | dSP; | |
6371 | ENTER; | |
6372 | SAVETMPS; | |
6373 | PUSHMARK(sp); | |
6374 | EXTEND(SP, 1); | |
6375 | XPUSHs(PL_encoding); | |
6376 | PUTBACK; | |
6377 | call_method("name", G_SCALAR); | |
6378 | SPAGAIN; | |
6379 | name = POPs; | |
6380 | PUTBACK; | |
bfed75c6 | 6381 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
52d2e0f4 | 6382 | Perl_form(aTHX_ ":encoding(%"SVf")", |
be2597df | 6383 | SVfARG(name))); |
52d2e0f4 JH |
6384 | FREETMPS; |
6385 | LEAVE; | |
6386 | } | |
6387 | } | |
7948272d | 6388 | #endif |
5db06880 NC |
6389 | #ifdef PERL_MAD |
6390 | if (PL_madskills) { | |
cd81e915 NC |
6391 | if (PL_realtokenstart >= 0) { |
6392 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; | |
6393 | if (!PL_endwhite) | |
6b29d1f5 | 6394 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
6395 | sv_catsv(PL_endwhite, PL_thiswhite); |
6396 | PL_thiswhite = 0; | |
6397 | sv_catpvn(PL_endwhite, tstart, PL_bufend - tstart); | |
6398 | PL_realtokenstart = -1; | |
5db06880 | 6399 | } |
5cc814fd NC |
6400 | while ((s = filter_gets(PL_endwhite, SvCUR(PL_endwhite))) |
6401 | != NULL) ; | |
5db06880 NC |
6402 | } |
6403 | #endif | |
4608196e | 6404 | PL_rsfp = NULL; |
79072805 LW |
6405 | } |
6406 | goto fake_eof; | |
e929a76b | 6407 | } |
de3bb511 | 6408 | |
8990e307 | 6409 | case KEY_AUTOLOAD: |
ed6116ce | 6410 | case KEY_DESTROY: |
79072805 | 6411 | case KEY_BEGIN: |
3c10abe3 | 6412 | case KEY_UNITCHECK: |
7d30b5c4 | 6413 | case KEY_CHECK: |
7d07dbc2 | 6414 | case KEY_INIT: |
7d30b5c4 | 6415 | case KEY_END: |
3280af22 NIS |
6416 | if (PL_expect == XSTATE) { |
6417 | s = PL_bufptr; | |
93a17b20 | 6418 | goto really_sub; |
79072805 LW |
6419 | } |
6420 | goto just_a_word; | |
6421 | ||
a0d0e21e LW |
6422 | case KEY_CORE: |
6423 | if (*s == ':' && s[1] == ':') { | |
6424 | s += 2; | |
748a9306 | 6425 | d = s; |
3280af22 | 6426 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 6427 | if (!(tmp = keyword(PL_tokenbuf, len, 0))) |
6798c92b | 6428 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); |
a0d0e21e LW |
6429 | if (tmp < 0) |
6430 | tmp = -tmp; | |
850e8516 | 6431 | else if (tmp == KEY_require || tmp == KEY_do) |
a72a1c8b | 6432 | /* that's a way to remember we saw "CORE::" */ |
850e8516 | 6433 | orig_keyword = tmp; |
a0d0e21e LW |
6434 | goto reserved_word; |
6435 | } | |
6436 | goto just_a_word; | |
6437 | ||
463ee0b2 LW |
6438 | case KEY_abs: |
6439 | UNI(OP_ABS); | |
6440 | ||
79072805 LW |
6441 | case KEY_alarm: |
6442 | UNI(OP_ALARM); | |
6443 | ||
6444 | case KEY_accept: | |
a0d0e21e | 6445 | LOP(OP_ACCEPT,XTERM); |
79072805 | 6446 | |
463ee0b2 LW |
6447 | case KEY_and: |
6448 | OPERATOR(ANDOP); | |
6449 | ||
79072805 | 6450 | case KEY_atan2: |
a0d0e21e | 6451 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 6452 | |
79072805 | 6453 | case KEY_bind: |
a0d0e21e | 6454 | LOP(OP_BIND,XTERM); |
79072805 LW |
6455 | |
6456 | case KEY_binmode: | |
1c1fc3ea | 6457 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
6458 | |
6459 | case KEY_bless: | |
a0d0e21e | 6460 | LOP(OP_BLESS,XTERM); |
79072805 | 6461 | |
0d863452 RH |
6462 | case KEY_break: |
6463 | FUN0(OP_BREAK); | |
6464 | ||
79072805 LW |
6465 | case KEY_chop: |
6466 | UNI(OP_CHOP); | |
6467 | ||
6468 | case KEY_continue: | |
0d863452 RH |
6469 | /* When 'use switch' is in effect, continue has a dual |
6470 | life as a control operator. */ | |
6471 | { | |
ef89dcc3 | 6472 | if (!FEATURE_IS_ENABLED("switch")) |
0d863452 RH |
6473 | PREBLOCK(CONTINUE); |
6474 | else { | |
6475 | /* We have to disambiguate the two senses of | |
6476 | "continue". If the next token is a '{' then | |
6477 | treat it as the start of a continue block; | |
6478 | otherwise treat it as a control operator. | |
6479 | */ | |
6480 | s = skipspace(s); | |
6481 | if (*s == '{') | |
79072805 | 6482 | PREBLOCK(CONTINUE); |
0d863452 RH |
6483 | else |
6484 | FUN0(OP_CONTINUE); | |
6485 | } | |
6486 | } | |
79072805 LW |
6487 | |
6488 | case KEY_chdir: | |
fafc274c NC |
6489 | /* may use HOME */ |
6490 | (void)gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV); | |
79072805 LW |
6491 | UNI(OP_CHDIR); |
6492 | ||
6493 | case KEY_close: | |
6494 | UNI(OP_CLOSE); | |
6495 | ||
6496 | case KEY_closedir: | |
6497 | UNI(OP_CLOSEDIR); | |
6498 | ||
6499 | case KEY_cmp: | |
6500 | Eop(OP_SCMP); | |
6501 | ||
6502 | case KEY_caller: | |
6503 | UNI(OP_CALLER); | |
6504 | ||
6505 | case KEY_crypt: | |
6506 | #ifdef FCRYPT | |
f4c556ac GS |
6507 | if (!PL_cryptseen) { |
6508 | PL_cryptseen = TRUE; | |
de3bb511 | 6509 | init_des(); |
f4c556ac | 6510 | } |
a687059c | 6511 | #endif |
a0d0e21e | 6512 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
6513 | |
6514 | case KEY_chmod: | |
a0d0e21e | 6515 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
6516 | |
6517 | case KEY_chown: | |
a0d0e21e | 6518 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
6519 | |
6520 | case KEY_connect: | |
a0d0e21e | 6521 | LOP(OP_CONNECT,XTERM); |
79072805 | 6522 | |
463ee0b2 LW |
6523 | case KEY_chr: |
6524 | UNI(OP_CHR); | |
6525 | ||
79072805 LW |
6526 | case KEY_cos: |
6527 | UNI(OP_COS); | |
6528 | ||
6529 | case KEY_chroot: | |
6530 | UNI(OP_CHROOT); | |
6531 | ||
0d863452 RH |
6532 | case KEY_default: |
6533 | PREBLOCK(DEFAULT); | |
6534 | ||
79072805 | 6535 | case KEY_do: |
29595ff2 | 6536 | s = SKIPSPACE1(s); |
79072805 | 6537 | if (*s == '{') |
a0d0e21e | 6538 | PRETERMBLOCK(DO); |
79072805 | 6539 | if (*s != '\'') |
89c5585f | 6540 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
850e8516 RGS |
6541 | if (orig_keyword == KEY_do) { |
6542 | orig_keyword = 0; | |
6154021b | 6543 | pl_yylval.ival = 1; |
850e8516 RGS |
6544 | } |
6545 | else | |
6154021b | 6546 | pl_yylval.ival = 0; |
378cc40b | 6547 | OPERATOR(DO); |
79072805 LW |
6548 | |
6549 | case KEY_die: | |
3280af22 | 6550 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 6551 | LOP(OP_DIE,XTERM); |
79072805 LW |
6552 | |
6553 | case KEY_defined: | |
6554 | UNI(OP_DEFINED); | |
6555 | ||
6556 | case KEY_delete: | |
a0d0e21e | 6557 | UNI(OP_DELETE); |
79072805 LW |
6558 | |
6559 | case KEY_dbmopen: | |
5c1737d1 | 6560 | gv_fetchpvs("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
a0d0e21e | 6561 | LOP(OP_DBMOPEN,XTERM); |
79072805 LW |
6562 | |
6563 | case KEY_dbmclose: | |
6564 | UNI(OP_DBMCLOSE); | |
6565 | ||
6566 | case KEY_dump: | |
a0d0e21e | 6567 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6568 | LOOPX(OP_DUMP); |
6569 | ||
6570 | case KEY_else: | |
6571 | PREBLOCK(ELSE); | |
6572 | ||
6573 | case KEY_elsif: | |
6154021b | 6574 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6575 | OPERATOR(ELSIF); |
6576 | ||
6577 | case KEY_eq: | |
6578 | Eop(OP_SEQ); | |
6579 | ||
a0d0e21e LW |
6580 | case KEY_exists: |
6581 | UNI(OP_EXISTS); | |
4e553d73 | 6582 | |
79072805 | 6583 | case KEY_exit: |
5db06880 NC |
6584 | if (PL_madskills) |
6585 | UNI(OP_INT); | |
79072805 LW |
6586 | UNI(OP_EXIT); |
6587 | ||
6588 | case KEY_eval: | |
29595ff2 | 6589 | s = SKIPSPACE1(s); |
32e2a35d RGS |
6590 | if (*s == '{') { /* block eval */ |
6591 | PL_expect = XTERMBLOCK; | |
6592 | UNIBRACK(OP_ENTERTRY); | |
6593 | } | |
6594 | else { /* string eval */ | |
6595 | PL_expect = XTERM; | |
6596 | UNIBRACK(OP_ENTEREVAL); | |
6597 | } | |
79072805 LW |
6598 | |
6599 | case KEY_eof: | |
6600 | UNI(OP_EOF); | |
6601 | ||
6602 | case KEY_exp: | |
6603 | UNI(OP_EXP); | |
6604 | ||
6605 | case KEY_each: | |
6606 | UNI(OP_EACH); | |
6607 | ||
6608 | case KEY_exec: | |
a0d0e21e | 6609 | LOP(OP_EXEC,XREF); |
79072805 LW |
6610 | |
6611 | case KEY_endhostent: | |
6612 | FUN0(OP_EHOSTENT); | |
6613 | ||
6614 | case KEY_endnetent: | |
6615 | FUN0(OP_ENETENT); | |
6616 | ||
6617 | case KEY_endservent: | |
6618 | FUN0(OP_ESERVENT); | |
6619 | ||
6620 | case KEY_endprotoent: | |
6621 | FUN0(OP_EPROTOENT); | |
6622 | ||
6623 | case KEY_endpwent: | |
6624 | FUN0(OP_EPWENT); | |
6625 | ||
6626 | case KEY_endgrent: | |
6627 | FUN0(OP_EGRENT); | |
6628 | ||
6629 | case KEY_for: | |
6630 | case KEY_foreach: | |
6154021b | 6631 | pl_yylval.ival = CopLINE(PL_curcop); |
29595ff2 | 6632 | s = SKIPSPACE1(s); |
7e2040f0 | 6633 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 6634 | char *p = s; |
5db06880 NC |
6635 | #ifdef PERL_MAD |
6636 | int soff = s - SvPVX(PL_linestr); /* for skipspace realloc */ | |
6637 | #endif | |
6638 | ||
3280af22 | 6639 | if ((PL_bufend - p) >= 3 && |
55497cff | 6640 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
6641 | p += 2; | |
77ca0c92 LW |
6642 | else if ((PL_bufend - p) >= 4 && |
6643 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
6644 | p += 3; | |
29595ff2 | 6645 | p = PEEKSPACE(p); |
7e2040f0 | 6646 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
6647 | p = scan_ident(p, PL_bufend, |
6648 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
29595ff2 | 6649 | p = PEEKSPACE(p); |
77ca0c92 LW |
6650 | } |
6651 | if (*p != '$') | |
cea2e8a9 | 6652 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
5db06880 NC |
6653 | #ifdef PERL_MAD |
6654 | s = SvPVX(PL_linestr) + soff; | |
6655 | #endif | |
55497cff | 6656 | } |
79072805 LW |
6657 | OPERATOR(FOR); |
6658 | ||
6659 | case KEY_formline: | |
a0d0e21e | 6660 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
6661 | |
6662 | case KEY_fork: | |
6663 | FUN0(OP_FORK); | |
6664 | ||
6665 | case KEY_fcntl: | |
a0d0e21e | 6666 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
6667 | |
6668 | case KEY_fileno: | |
6669 | UNI(OP_FILENO); | |
6670 | ||
6671 | case KEY_flock: | |
a0d0e21e | 6672 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
6673 | |
6674 | case KEY_gt: | |
6675 | Rop(OP_SGT); | |
6676 | ||
6677 | case KEY_ge: | |
6678 | Rop(OP_SGE); | |
6679 | ||
6680 | case KEY_grep: | |
2c38e13d | 6681 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
6682 | |
6683 | case KEY_goto: | |
a0d0e21e | 6684 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6685 | LOOPX(OP_GOTO); |
6686 | ||
6687 | case KEY_gmtime: | |
6688 | UNI(OP_GMTIME); | |
6689 | ||
6690 | case KEY_getc: | |
6f33ba73 | 6691 | UNIDOR(OP_GETC); |
79072805 LW |
6692 | |
6693 | case KEY_getppid: | |
6694 | FUN0(OP_GETPPID); | |
6695 | ||
6696 | case KEY_getpgrp: | |
6697 | UNI(OP_GETPGRP); | |
6698 | ||
6699 | case KEY_getpriority: | |
a0d0e21e | 6700 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
6701 | |
6702 | case KEY_getprotobyname: | |
6703 | UNI(OP_GPBYNAME); | |
6704 | ||
6705 | case KEY_getprotobynumber: | |
a0d0e21e | 6706 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
6707 | |
6708 | case KEY_getprotoent: | |
6709 | FUN0(OP_GPROTOENT); | |
6710 | ||
6711 | case KEY_getpwent: | |
6712 | FUN0(OP_GPWENT); | |
6713 | ||
6714 | case KEY_getpwnam: | |
ff68c719 | 6715 | UNI(OP_GPWNAM); |
79072805 LW |
6716 | |
6717 | case KEY_getpwuid: | |
ff68c719 | 6718 | UNI(OP_GPWUID); |
79072805 LW |
6719 | |
6720 | case KEY_getpeername: | |
6721 | UNI(OP_GETPEERNAME); | |
6722 | ||
6723 | case KEY_gethostbyname: | |
6724 | UNI(OP_GHBYNAME); | |
6725 | ||
6726 | case KEY_gethostbyaddr: | |
a0d0e21e | 6727 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
6728 | |
6729 | case KEY_gethostent: | |
6730 | FUN0(OP_GHOSTENT); | |
6731 | ||
6732 | case KEY_getnetbyname: | |
6733 | UNI(OP_GNBYNAME); | |
6734 | ||
6735 | case KEY_getnetbyaddr: | |
a0d0e21e | 6736 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
6737 | |
6738 | case KEY_getnetent: | |
6739 | FUN0(OP_GNETENT); | |
6740 | ||
6741 | case KEY_getservbyname: | |
a0d0e21e | 6742 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
6743 | |
6744 | case KEY_getservbyport: | |
a0d0e21e | 6745 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
6746 | |
6747 | case KEY_getservent: | |
6748 | FUN0(OP_GSERVENT); | |
6749 | ||
6750 | case KEY_getsockname: | |
6751 | UNI(OP_GETSOCKNAME); | |
6752 | ||
6753 | case KEY_getsockopt: | |
a0d0e21e | 6754 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
6755 | |
6756 | case KEY_getgrent: | |
6757 | FUN0(OP_GGRENT); | |
6758 | ||
6759 | case KEY_getgrnam: | |
ff68c719 | 6760 | UNI(OP_GGRNAM); |
79072805 LW |
6761 | |
6762 | case KEY_getgrgid: | |
ff68c719 | 6763 | UNI(OP_GGRGID); |
79072805 LW |
6764 | |
6765 | case KEY_getlogin: | |
6766 | FUN0(OP_GETLOGIN); | |
6767 | ||
0d863452 | 6768 | case KEY_given: |
6154021b | 6769 | pl_yylval.ival = CopLINE(PL_curcop); |
0d863452 RH |
6770 | OPERATOR(GIVEN); |
6771 | ||
93a17b20 | 6772 | case KEY_glob: |
a0d0e21e | 6773 | LOP(OP_GLOB,XTERM); |
93a17b20 | 6774 | |
79072805 LW |
6775 | case KEY_hex: |
6776 | UNI(OP_HEX); | |
6777 | ||
6778 | case KEY_if: | |
6154021b | 6779 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6780 | OPERATOR(IF); |
6781 | ||
6782 | case KEY_index: | |
a0d0e21e | 6783 | LOP(OP_INDEX,XTERM); |
79072805 LW |
6784 | |
6785 | case KEY_int: | |
6786 | UNI(OP_INT); | |
6787 | ||
6788 | case KEY_ioctl: | |
a0d0e21e | 6789 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
6790 | |
6791 | case KEY_join: | |
a0d0e21e | 6792 | LOP(OP_JOIN,XTERM); |
79072805 LW |
6793 | |
6794 | case KEY_keys: | |
6795 | UNI(OP_KEYS); | |
6796 | ||
6797 | case KEY_kill: | |
a0d0e21e | 6798 | LOP(OP_KILL,XTERM); |
79072805 LW |
6799 | |
6800 | case KEY_last: | |
a0d0e21e | 6801 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 6802 | LOOPX(OP_LAST); |
4e553d73 | 6803 | |
79072805 LW |
6804 | case KEY_lc: |
6805 | UNI(OP_LC); | |
6806 | ||
6807 | case KEY_lcfirst: | |
6808 | UNI(OP_LCFIRST); | |
6809 | ||
6810 | case KEY_local: | |
6154021b | 6811 | pl_yylval.ival = 0; |
79072805 LW |
6812 | OPERATOR(LOCAL); |
6813 | ||
6814 | case KEY_length: | |
6815 | UNI(OP_LENGTH); | |
6816 | ||
6817 | case KEY_lt: | |
6818 | Rop(OP_SLT); | |
6819 | ||
6820 | case KEY_le: | |
6821 | Rop(OP_SLE); | |
6822 | ||
6823 | case KEY_localtime: | |
6824 | UNI(OP_LOCALTIME); | |
6825 | ||
6826 | case KEY_log: | |
6827 | UNI(OP_LOG); | |
6828 | ||
6829 | case KEY_link: | |
a0d0e21e | 6830 | LOP(OP_LINK,XTERM); |
79072805 LW |
6831 | |
6832 | case KEY_listen: | |
a0d0e21e | 6833 | LOP(OP_LISTEN,XTERM); |
79072805 | 6834 | |
c0329465 MB |
6835 | case KEY_lock: |
6836 | UNI(OP_LOCK); | |
6837 | ||
79072805 LW |
6838 | case KEY_lstat: |
6839 | UNI(OP_LSTAT); | |
6840 | ||
6841 | case KEY_m: | |
8782bef2 | 6842 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
6843 | TERM(sublex_start()); |
6844 | ||
a0d0e21e | 6845 | case KEY_map: |
2c38e13d | 6846 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 6847 | |
79072805 | 6848 | case KEY_mkdir: |
a0d0e21e | 6849 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
6850 | |
6851 | case KEY_msgctl: | |
a0d0e21e | 6852 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
6853 | |
6854 | case KEY_msgget: | |
a0d0e21e | 6855 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
6856 | |
6857 | case KEY_msgrcv: | |
a0d0e21e | 6858 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
6859 | |
6860 | case KEY_msgsnd: | |
a0d0e21e | 6861 | LOP(OP_MSGSND,XTERM); |
79072805 | 6862 | |
77ca0c92 | 6863 | case KEY_our: |
93a17b20 | 6864 | case KEY_my: |
952306ac | 6865 | case KEY_state: |
eac04b2e | 6866 | PL_in_my = (U16)tmp; |
29595ff2 | 6867 | s = SKIPSPACE1(s); |
7e2040f0 | 6868 | if (isIDFIRST_lazy_if(s,UTF)) { |
5db06880 NC |
6869 | #ifdef PERL_MAD |
6870 | char* start = s; | |
6871 | #endif | |
3280af22 | 6872 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
6873 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
6874 | goto really_sub; | |
def3634b | 6875 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 6876 | if (!PL_in_my_stash) { |
c750a3ec | 6877 | char tmpbuf[1024]; |
3280af22 | 6878 | PL_bufptr = s; |
d9fad198 | 6879 | my_snprintf(tmpbuf, sizeof(tmpbuf), "No such class %.1000s", PL_tokenbuf); |
c750a3ec MB |
6880 | yyerror(tmpbuf); |
6881 | } | |
5db06880 NC |
6882 | #ifdef PERL_MAD |
6883 | if (PL_madskills) { /* just add type to declarator token */ | |
cd81e915 NC |
6884 | sv_catsv(PL_thistoken, PL_nextwhite); |
6885 | PL_nextwhite = 0; | |
6886 | sv_catpvn(PL_thistoken, start, s - start); | |
5db06880 NC |
6887 | } |
6888 | #endif | |
c750a3ec | 6889 | } |
6154021b | 6890 | pl_yylval.ival = 1; |
55497cff | 6891 | OPERATOR(MY); |
93a17b20 | 6892 | |
79072805 | 6893 | case KEY_next: |
a0d0e21e | 6894 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6895 | LOOPX(OP_NEXT); |
6896 | ||
6897 | case KEY_ne: | |
6898 | Eop(OP_SNE); | |
6899 | ||
a0d0e21e | 6900 | case KEY_no: |
468aa647 | 6901 | s = tokenize_use(0, s); |
a0d0e21e LW |
6902 | OPERATOR(USE); |
6903 | ||
6904 | case KEY_not: | |
29595ff2 | 6905 | if (*s == '(' || (s = SKIPSPACE1(s), *s == '(')) |
2d2e263d LW |
6906 | FUN1(OP_NOT); |
6907 | else | |
6908 | OPERATOR(NOTOP); | |
a0d0e21e | 6909 | |
79072805 | 6910 | case KEY_open: |
29595ff2 | 6911 | s = SKIPSPACE1(s); |
7e2040f0 | 6912 | if (isIDFIRST_lazy_if(s,UTF)) { |
f54cb97a | 6913 | const char *t; |
c35e046a AL |
6914 | for (d = s; isALNUM_lazy_if(d,UTF);) |
6915 | d++; | |
6916 | for (t=d; isSPACE(*t);) | |
6917 | t++; | |
e2ab214b | 6918 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) |
66fbe8fb HS |
6919 | /* [perl #16184] */ |
6920 | && !(t[0] == '=' && t[1] == '>') | |
6921 | ) { | |
5f66b61c | 6922 | int parms_len = (int)(d-s); |
9014280d | 6923 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 6924 | "Precedence problem: open %.*s should be open(%.*s)", |
5f66b61c | 6925 | parms_len, s, parms_len, s); |
66fbe8fb | 6926 | } |
93a17b20 | 6927 | } |
a0d0e21e | 6928 | LOP(OP_OPEN,XTERM); |
79072805 | 6929 | |
463ee0b2 | 6930 | case KEY_or: |
6154021b | 6931 | pl_yylval.ival = OP_OR; |
463ee0b2 LW |
6932 | OPERATOR(OROP); |
6933 | ||
79072805 LW |
6934 | case KEY_ord: |
6935 | UNI(OP_ORD); | |
6936 | ||
6937 | case KEY_oct: | |
6938 | UNI(OP_OCT); | |
6939 | ||
6940 | case KEY_opendir: | |
a0d0e21e | 6941 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
6942 | |
6943 | case KEY_print: | |
3280af22 | 6944 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6945 | LOP(OP_PRINT,XREF); |
79072805 LW |
6946 | |
6947 | case KEY_printf: | |
3280af22 | 6948 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6949 | LOP(OP_PRTF,XREF); |
79072805 | 6950 | |
c07a80fd | 6951 | case KEY_prototype: |
6952 | UNI(OP_PROTOTYPE); | |
6953 | ||
79072805 | 6954 | case KEY_push: |
a0d0e21e | 6955 | LOP(OP_PUSH,XTERM); |
79072805 LW |
6956 | |
6957 | case KEY_pop: | |
6f33ba73 | 6958 | UNIDOR(OP_POP); |
79072805 | 6959 | |
a0d0e21e | 6960 | case KEY_pos: |
6f33ba73 | 6961 | UNIDOR(OP_POS); |
4e553d73 | 6962 | |
79072805 | 6963 | case KEY_pack: |
a0d0e21e | 6964 | LOP(OP_PACK,XTERM); |
79072805 LW |
6965 | |
6966 | case KEY_package: | |
a0d0e21e | 6967 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
6fa4d285 | 6968 | s = force_version(s, FALSE); |
79072805 LW |
6969 | OPERATOR(PACKAGE); |
6970 | ||
6971 | case KEY_pipe: | |
a0d0e21e | 6972 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
6973 | |
6974 | case KEY_q: | |
5db06880 | 6975 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6976 | if (!s) |
d4c19fe8 | 6977 | missingterm(NULL); |
6154021b | 6978 | pl_yylval.ival = OP_CONST; |
79072805 LW |
6979 | TERM(sublex_start()); |
6980 | ||
a0d0e21e LW |
6981 | case KEY_quotemeta: |
6982 | UNI(OP_QUOTEMETA); | |
6983 | ||
8990e307 | 6984 | case KEY_qw: |
5db06880 | 6985 | s = scan_str(s,!!PL_madskills,FALSE); |
8990e307 | 6986 | if (!s) |
d4c19fe8 | 6987 | missingterm(NULL); |
3480a8d2 | 6988 | PL_expect = XOPERATOR; |
8127e0e3 GS |
6989 | force_next(')'); |
6990 | if (SvCUR(PL_lex_stuff)) { | |
5f66b61c | 6991 | OP *words = NULL; |
8127e0e3 | 6992 | int warned = 0; |
3280af22 | 6993 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 6994 | while (len) { |
d4c19fe8 AL |
6995 | for (; isSPACE(*d) && len; --len, ++d) |
6996 | /**/; | |
8127e0e3 | 6997 | if (len) { |
d4c19fe8 | 6998 | SV *sv; |
f54cb97a | 6999 | const char *b = d; |
e476b1b5 | 7000 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
7001 | for (; !isSPACE(*d) && len; --len, ++d) { |
7002 | if (*d == ',') { | |
9014280d | 7003 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
7004 | "Possible attempt to separate words with commas"); |
7005 | ++warned; | |
7006 | } | |
7007 | else if (*d == '#') { | |
9014280d | 7008 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
7009 | "Possible attempt to put comments in qw() list"); |
7010 | ++warned; | |
7011 | } | |
7012 | } | |
7013 | } | |
7014 | else { | |
d4c19fe8 AL |
7015 | for (; !isSPACE(*d) && len; --len, ++d) |
7016 | /**/; | |
8127e0e3 | 7017 | } |
740cce10 | 7018 | sv = newSVpvn_utf8(b, d-b, DO_UTF8(PL_lex_stuff)); |
8127e0e3 | 7019 | words = append_elem(OP_LIST, words, |
7948272d | 7020 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 7021 | } |
7022 | } | |
8127e0e3 | 7023 | if (words) { |
cd81e915 | 7024 | start_force(PL_curforce); |
9ded7720 | 7025 | NEXTVAL_NEXTTOKE.opval = words; |
8127e0e3 GS |
7026 | force_next(THING); |
7027 | } | |
55497cff | 7028 | } |
37fd879b | 7029 | if (PL_lex_stuff) { |
8127e0e3 | 7030 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 7031 | PL_lex_stuff = NULL; |
37fd879b | 7032 | } |
3280af22 | 7033 | PL_expect = XTERM; |
8127e0e3 | 7034 | TOKEN('('); |
8990e307 | 7035 | |
79072805 | 7036 | case KEY_qq: |
5db06880 | 7037 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 7038 | if (!s) |
d4c19fe8 | 7039 | missingterm(NULL); |
6154021b | 7040 | pl_yylval.ival = OP_STRINGIFY; |
3280af22 | 7041 | if (SvIVX(PL_lex_stuff) == '\'') |
45977657 | 7042 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
7043 | TERM(sublex_start()); |
7044 | ||
8782bef2 GB |
7045 | case KEY_qr: |
7046 | s = scan_pat(s,OP_QR); | |
7047 | TERM(sublex_start()); | |
7048 | ||
79072805 | 7049 | case KEY_qx: |
5db06880 | 7050 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 7051 | if (!s) |
d4c19fe8 | 7052 | missingterm(NULL); |
9b201d7d | 7053 | readpipe_override(); |
79072805 LW |
7054 | TERM(sublex_start()); |
7055 | ||
7056 | case KEY_return: | |
7057 | OLDLOP(OP_RETURN); | |
7058 | ||
7059 | case KEY_require: | |
29595ff2 | 7060 | s = SKIPSPACE1(s); |
e759cc13 RGS |
7061 | if (isDIGIT(*s)) { |
7062 | s = force_version(s, FALSE); | |
a7cb1f99 | 7063 | } |
e759cc13 RGS |
7064 | else if (*s != 'v' || !isDIGIT(s[1]) |
7065 | || (s = force_version(s, TRUE), *s == 'v')) | |
7066 | { | |
a7cb1f99 GS |
7067 | *PL_tokenbuf = '\0'; |
7068 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 7069 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
da51bb9b | 7070 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), GV_ADD); |
a7cb1f99 GS |
7071 | else if (*s == '<') |
7072 | yyerror("<> should be quotes"); | |
7073 | } | |
a72a1c8b RGS |
7074 | if (orig_keyword == KEY_require) { |
7075 | orig_keyword = 0; | |
6154021b | 7076 | pl_yylval.ival = 1; |
a72a1c8b RGS |
7077 | } |
7078 | else | |
6154021b | 7079 | pl_yylval.ival = 0; |
a72a1c8b RGS |
7080 | PL_expect = XTERM; |
7081 | PL_bufptr = s; | |
7082 | PL_last_uni = PL_oldbufptr; | |
7083 | PL_last_lop_op = OP_REQUIRE; | |
7084 | s = skipspace(s); | |
7085 | return REPORT( (int)REQUIRE ); | |
79072805 LW |
7086 | |
7087 | case KEY_reset: | |
7088 | UNI(OP_RESET); | |
7089 | ||
7090 | case KEY_redo: | |
a0d0e21e | 7091 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
7092 | LOOPX(OP_REDO); |
7093 | ||
7094 | case KEY_rename: | |
a0d0e21e | 7095 | LOP(OP_RENAME,XTERM); |
79072805 LW |
7096 | |
7097 | case KEY_rand: | |
7098 | UNI(OP_RAND); | |
7099 | ||
7100 | case KEY_rmdir: | |
7101 | UNI(OP_RMDIR); | |
7102 | ||
7103 | case KEY_rindex: | |
a0d0e21e | 7104 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
7105 | |
7106 | case KEY_read: | |
a0d0e21e | 7107 | LOP(OP_READ,XTERM); |
79072805 LW |
7108 | |
7109 | case KEY_readdir: | |
7110 | UNI(OP_READDIR); | |
7111 | ||
93a17b20 | 7112 | case KEY_readline: |
6f33ba73 | 7113 | UNIDOR(OP_READLINE); |
93a17b20 LW |
7114 | |
7115 | case KEY_readpipe: | |
0858480c | 7116 | UNIDOR(OP_BACKTICK); |
93a17b20 | 7117 | |
79072805 LW |
7118 | case KEY_rewinddir: |
7119 | UNI(OP_REWINDDIR); | |
7120 | ||
7121 | case KEY_recv: | |
a0d0e21e | 7122 | LOP(OP_RECV,XTERM); |
79072805 LW |
7123 | |
7124 | case KEY_reverse: | |
a0d0e21e | 7125 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
7126 | |
7127 | case KEY_readlink: | |
6f33ba73 | 7128 | UNIDOR(OP_READLINK); |
79072805 LW |
7129 | |
7130 | case KEY_ref: | |
7131 | UNI(OP_REF); | |
7132 | ||
7133 | case KEY_s: | |
7134 | s = scan_subst(s); | |
6154021b | 7135 | if (pl_yylval.opval) |
79072805 LW |
7136 | TERM(sublex_start()); |
7137 | else | |
7138 | TOKEN(1); /* force error */ | |
7139 | ||
0d863452 RH |
7140 | case KEY_say: |
7141 | checkcomma(s,PL_tokenbuf,"filehandle"); | |
7142 | LOP(OP_SAY,XREF); | |
7143 | ||
a0d0e21e LW |
7144 | case KEY_chomp: |
7145 | UNI(OP_CHOMP); | |
4e553d73 | 7146 | |
79072805 LW |
7147 | case KEY_scalar: |
7148 | UNI(OP_SCALAR); | |
7149 | ||
7150 | case KEY_select: | |
a0d0e21e | 7151 | LOP(OP_SELECT,XTERM); |
79072805 LW |
7152 | |
7153 | case KEY_seek: | |
a0d0e21e | 7154 | LOP(OP_SEEK,XTERM); |
79072805 LW |
7155 | |
7156 | case KEY_semctl: | |
a0d0e21e | 7157 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
7158 | |
7159 | case KEY_semget: | |
a0d0e21e | 7160 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
7161 | |
7162 | case KEY_semop: | |
a0d0e21e | 7163 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
7164 | |
7165 | case KEY_send: | |
a0d0e21e | 7166 | LOP(OP_SEND,XTERM); |
79072805 LW |
7167 | |
7168 | case KEY_setpgrp: | |
a0d0e21e | 7169 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
7170 | |
7171 | case KEY_setpriority: | |
a0d0e21e | 7172 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
7173 | |
7174 | case KEY_sethostent: | |
ff68c719 | 7175 | UNI(OP_SHOSTENT); |
79072805 LW |
7176 | |
7177 | case KEY_setnetent: | |
ff68c719 | 7178 | UNI(OP_SNETENT); |
79072805 LW |
7179 | |
7180 | case KEY_setservent: | |
ff68c719 | 7181 | UNI(OP_SSERVENT); |
79072805 LW |
7182 | |
7183 | case KEY_setprotoent: | |
ff68c719 | 7184 | UNI(OP_SPROTOENT); |
79072805 LW |
7185 | |
7186 | case KEY_setpwent: | |
7187 | FUN0(OP_SPWENT); | |
7188 | ||
7189 | case KEY_setgrent: | |
7190 | FUN0(OP_SGRENT); | |
7191 | ||
7192 | case KEY_seekdir: | |
a0d0e21e | 7193 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
7194 | |
7195 | case KEY_setsockopt: | |
a0d0e21e | 7196 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
7197 | |
7198 | case KEY_shift: | |
6f33ba73 | 7199 | UNIDOR(OP_SHIFT); |
79072805 LW |
7200 | |
7201 | case KEY_shmctl: | |
a0d0e21e | 7202 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
7203 | |
7204 | case KEY_shmget: | |
a0d0e21e | 7205 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
7206 | |
7207 | case KEY_shmread: | |
a0d0e21e | 7208 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
7209 | |
7210 | case KEY_shmwrite: | |
a0d0e21e | 7211 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
7212 | |
7213 | case KEY_shutdown: | |
a0d0e21e | 7214 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
7215 | |
7216 | case KEY_sin: | |
7217 | UNI(OP_SIN); | |
7218 | ||
7219 | case KEY_sleep: | |
7220 | UNI(OP_SLEEP); | |
7221 | ||
7222 | case KEY_socket: | |
a0d0e21e | 7223 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
7224 | |
7225 | case KEY_socketpair: | |
a0d0e21e | 7226 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
7227 | |
7228 | case KEY_sort: | |
3280af22 | 7229 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
29595ff2 | 7230 | s = SKIPSPACE1(s); |
79072805 | 7231 | if (*s == ';' || *s == ')') /* probably a close */ |
cea2e8a9 | 7232 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 7233 | PL_expect = XTERM; |
15f0808c | 7234 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 7235 | LOP(OP_SORT,XREF); |
79072805 LW |
7236 | |
7237 | case KEY_split: | |
a0d0e21e | 7238 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
7239 | |
7240 | case KEY_sprintf: | |
a0d0e21e | 7241 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
7242 | |
7243 | case KEY_splice: | |
a0d0e21e | 7244 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
7245 | |
7246 | case KEY_sqrt: | |
7247 | UNI(OP_SQRT); | |
7248 | ||
7249 | case KEY_srand: | |
7250 | UNI(OP_SRAND); | |
7251 | ||
7252 | case KEY_stat: | |
7253 | UNI(OP_STAT); | |
7254 | ||
7255 | case KEY_study: | |
79072805 LW |
7256 | UNI(OP_STUDY); |
7257 | ||
7258 | case KEY_substr: | |
a0d0e21e | 7259 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
7260 | |
7261 | case KEY_format: | |
7262 | case KEY_sub: | |
93a17b20 | 7263 | really_sub: |
09bef843 | 7264 | { |
3280af22 | 7265 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 7266 | SSize_t tboffset = 0; |
09bef843 | 7267 | expectation attrful; |
28cc6278 | 7268 | bool have_name, have_proto; |
f54cb97a | 7269 | const int key = tmp; |
09bef843 | 7270 | |
5db06880 NC |
7271 | #ifdef PERL_MAD |
7272 | SV *tmpwhite = 0; | |
7273 | ||
cd81e915 | 7274 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
5db06880 | 7275 | SV *subtoken = newSVpvn(tstart, s - tstart); |
cd81e915 | 7276 | PL_thistoken = 0; |
5db06880 NC |
7277 | |
7278 | d = s; | |
7279 | s = SKIPSPACE2(s,tmpwhite); | |
7280 | #else | |
09bef843 | 7281 | s = skipspace(s); |
5db06880 | 7282 | #endif |
09bef843 | 7283 | |
7e2040f0 | 7284 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
7285 | (*s == ':' && s[1] == ':')) |
7286 | { | |
5db06880 | 7287 | #ifdef PERL_MAD |
4f61fd4b | 7288 | SV *nametoke = NULL; |
5db06880 NC |
7289 | #endif |
7290 | ||
09bef843 SB |
7291 | PL_expect = XBLOCK; |
7292 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
7293 | /* remember buffer pos'n for later force_word */ |
7294 | tboffset = s - PL_oldbufptr; | |
09bef843 | 7295 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5db06880 NC |
7296 | #ifdef PERL_MAD |
7297 | if (PL_madskills) | |
7298 | nametoke = newSVpvn(s, d - s); | |
7299 | #endif | |
6502358f NC |
7300 | if (memchr(tmpbuf, ':', len)) |
7301 | sv_setpvn(PL_subname, tmpbuf, len); | |
09bef843 SB |
7302 | else { |
7303 | sv_setsv(PL_subname,PL_curstname); | |
396482e1 | 7304 | sv_catpvs(PL_subname,"::"); |
09bef843 SB |
7305 | sv_catpvn(PL_subname,tmpbuf,len); |
7306 | } | |
09bef843 | 7307 | have_name = TRUE; |
5db06880 NC |
7308 | |
7309 | #ifdef PERL_MAD | |
7310 | ||
7311 | start_force(0); | |
7312 | CURMAD('X', nametoke); | |
7313 | CURMAD('_', tmpwhite); | |
7314 | (void) force_word(PL_oldbufptr + tboffset, WORD, | |
7315 | FALSE, TRUE, TRUE); | |
7316 | ||
7317 | s = SKIPSPACE2(d,tmpwhite); | |
7318 | #else | |
7319 | s = skipspace(d); | |
7320 | #endif | |
09bef843 | 7321 | } |
463ee0b2 | 7322 | else { |
09bef843 SB |
7323 | if (key == KEY_my) |
7324 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
7325 | PL_expect = XTERMBLOCK; | |
7326 | attrful = XATTRTERM; | |
76f68e9b | 7327 | sv_setpvs(PL_subname,"?"); |
09bef843 | 7328 | have_name = FALSE; |
463ee0b2 | 7329 | } |
4633a7c4 | 7330 | |
09bef843 SB |
7331 | if (key == KEY_format) { |
7332 | if (*s == '=') | |
7333 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5db06880 | 7334 | #ifdef PERL_MAD |
cd81e915 | 7335 | PL_thistoken = subtoken; |
5db06880 NC |
7336 | s = d; |
7337 | #else | |
09bef843 | 7338 | if (have_name) |
b1b65b59 JH |
7339 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
7340 | FALSE, TRUE, TRUE); | |
5db06880 | 7341 | #endif |
09bef843 SB |
7342 | OPERATOR(FORMAT); |
7343 | } | |
79072805 | 7344 | |
09bef843 SB |
7345 | /* Look for a prototype */ |
7346 | if (*s == '(') { | |
d9f2850e RGS |
7347 | char *p; |
7348 | bool bad_proto = FALSE; | |
9e8d7757 RB |
7349 | bool in_brackets = FALSE; |
7350 | char greedy_proto = ' '; | |
7351 | bool proto_after_greedy_proto = FALSE; | |
7352 | bool must_be_last = FALSE; | |
7353 | bool underscore = FALSE; | |
aef2a98a | 7354 | bool seen_underscore = FALSE; |
d9f2850e | 7355 | const bool warnsyntax = ckWARN(WARN_SYNTAX); |
09bef843 | 7356 | |
5db06880 | 7357 | s = scan_str(s,!!PL_madskills,FALSE); |
37fd879b | 7358 | if (!s) |
09bef843 | 7359 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 7360 | /* strip spaces and check for bad characters */ |
09bef843 SB |
7361 | d = SvPVX(PL_lex_stuff); |
7362 | tmp = 0; | |
d9f2850e RGS |
7363 | for (p = d; *p; ++p) { |
7364 | if (!isSPACE(*p)) { | |
7365 | d[tmp++] = *p; | |
9e8d7757 RB |
7366 | |
7367 | if (warnsyntax) { | |
7368 | if (must_be_last) | |
7369 | proto_after_greedy_proto = TRUE; | |
7370 | if (!strchr("$@%*;[]&\\_", *p)) { | |
7371 | bad_proto = TRUE; | |
7372 | } | |
7373 | else { | |
7374 | if ( underscore ) { | |
7375 | if ( *p != ';' ) | |
7376 | bad_proto = TRUE; | |
7377 | underscore = FALSE; | |
7378 | } | |
7379 | if ( *p == '[' ) { | |
7380 | in_brackets = TRUE; | |
7381 | } | |
7382 | else if ( *p == ']' ) { | |
7383 | in_brackets = FALSE; | |
7384 | } | |
7385 | else if ( (*p == '@' || *p == '%') && | |
7386 | ( tmp < 2 || d[tmp-2] != '\\' ) && | |
7387 | !in_brackets ) { | |
7388 | must_be_last = TRUE; | |
7389 | greedy_proto = *p; | |
7390 | } | |
7391 | else if ( *p == '_' ) { | |
aef2a98a | 7392 | underscore = seen_underscore = TRUE; |
9e8d7757 RB |
7393 | } |
7394 | } | |
7395 | } | |
d37a9538 | 7396 | } |
09bef843 | 7397 | } |
d9f2850e | 7398 | d[tmp] = '\0'; |
9e8d7757 RB |
7399 | if (proto_after_greedy_proto) |
7400 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
7401 | "Prototype after '%c' for %"SVf" : %s", | |
7402 | greedy_proto, SVfARG(PL_subname), d); | |
d9f2850e RGS |
7403 | if (bad_proto) |
7404 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
aef2a98a RGS |
7405 | "Illegal character %sin prototype for %"SVf" : %s", |
7406 | seen_underscore ? "after '_' " : "", | |
be2597df | 7407 | SVfARG(PL_subname), d); |
b162af07 | 7408 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 7409 | have_proto = TRUE; |
68dc0745 | 7410 | |
5db06880 NC |
7411 | #ifdef PERL_MAD |
7412 | start_force(0); | |
cd81e915 | 7413 | CURMAD('q', PL_thisopen); |
5db06880 | 7414 | CURMAD('_', tmpwhite); |
cd81e915 NC |
7415 | CURMAD('=', PL_thisstuff); |
7416 | CURMAD('Q', PL_thisclose); | |
5db06880 NC |
7417 | NEXTVAL_NEXTTOKE.opval = |
7418 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
1a9a51d4 | 7419 | PL_lex_stuff = NULL; |
5db06880 NC |
7420 | force_next(THING); |
7421 | ||
7422 | s = SKIPSPACE2(s,tmpwhite); | |
7423 | #else | |
09bef843 | 7424 | s = skipspace(s); |
5db06880 | 7425 | #endif |
4633a7c4 | 7426 | } |
09bef843 SB |
7427 | else |
7428 | have_proto = FALSE; | |
7429 | ||
7430 | if (*s == ':' && s[1] != ':') | |
7431 | PL_expect = attrful; | |
8e742a20 MHM |
7432 | else if (*s != '{' && key == KEY_sub) { |
7433 | if (!have_name) | |
7434 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
fd909433 | 7435 | else if (*s != ';' && *s != '}') |
be2597df | 7436 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, SVfARG(PL_subname)); |
8e742a20 | 7437 | } |
09bef843 | 7438 | |
5db06880 NC |
7439 | #ifdef PERL_MAD |
7440 | start_force(0); | |
7441 | if (tmpwhite) { | |
7442 | if (PL_madskills) | |
6b29d1f5 | 7443 | curmad('^', newSVpvs("")); |
5db06880 NC |
7444 | CURMAD('_', tmpwhite); |
7445 | } | |
7446 | force_next(0); | |
7447 | ||
cd81e915 | 7448 | PL_thistoken = subtoken; |
5db06880 | 7449 | #else |
09bef843 | 7450 | if (have_proto) { |
9ded7720 | 7451 | NEXTVAL_NEXTTOKE.opval = |
b1b65b59 | 7452 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); |
a0714e2c | 7453 | PL_lex_stuff = NULL; |
09bef843 | 7454 | force_next(THING); |
68dc0745 | 7455 | } |
5db06880 | 7456 | #endif |
09bef843 | 7457 | if (!have_name) { |
49a54bbe NC |
7458 | if (PL_curstash) |
7459 | sv_setpvs(PL_subname, "__ANON__"); | |
7460 | else | |
7461 | sv_setpvs(PL_subname, "__ANON__::__ANON__"); | |
09bef843 | 7462 | TOKEN(ANONSUB); |
4633a7c4 | 7463 | } |
5db06880 | 7464 | #ifndef PERL_MAD |
b1b65b59 JH |
7465 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
7466 | FALSE, TRUE, TRUE); | |
5db06880 | 7467 | #endif |
09bef843 SB |
7468 | if (key == KEY_my) |
7469 | TOKEN(MYSUB); | |
7470 | TOKEN(SUB); | |
4633a7c4 | 7471 | } |
79072805 LW |
7472 | |
7473 | case KEY_system: | |
a0d0e21e | 7474 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
7475 | |
7476 | case KEY_symlink: | |
a0d0e21e | 7477 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
7478 | |
7479 | case KEY_syscall: | |
a0d0e21e | 7480 | LOP(OP_SYSCALL,XTERM); |
79072805 | 7481 | |
c07a80fd | 7482 | case KEY_sysopen: |
7483 | LOP(OP_SYSOPEN,XTERM); | |
7484 | ||
137443ea | 7485 | case KEY_sysseek: |
7486 | LOP(OP_SYSSEEK,XTERM); | |
7487 | ||
79072805 | 7488 | case KEY_sysread: |
a0d0e21e | 7489 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
7490 | |
7491 | case KEY_syswrite: | |
a0d0e21e | 7492 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
7493 | |
7494 | case KEY_tr: | |
7495 | s = scan_trans(s); | |
7496 | TERM(sublex_start()); | |
7497 | ||
7498 | case KEY_tell: | |
7499 | UNI(OP_TELL); | |
7500 | ||
7501 | case KEY_telldir: | |
7502 | UNI(OP_TELLDIR); | |
7503 | ||
463ee0b2 | 7504 | case KEY_tie: |
a0d0e21e | 7505 | LOP(OP_TIE,XTERM); |
463ee0b2 | 7506 | |
c07a80fd | 7507 | case KEY_tied: |
7508 | UNI(OP_TIED); | |
7509 | ||
79072805 LW |
7510 | case KEY_time: |
7511 | FUN0(OP_TIME); | |
7512 | ||
7513 | case KEY_times: | |
7514 | FUN0(OP_TMS); | |
7515 | ||
7516 | case KEY_truncate: | |
a0d0e21e | 7517 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
7518 | |
7519 | case KEY_uc: | |
7520 | UNI(OP_UC); | |
7521 | ||
7522 | case KEY_ucfirst: | |
7523 | UNI(OP_UCFIRST); | |
7524 | ||
463ee0b2 LW |
7525 | case KEY_untie: |
7526 | UNI(OP_UNTIE); | |
7527 | ||
79072805 | 7528 | case KEY_until: |
6154021b | 7529 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
7530 | OPERATOR(UNTIL); |
7531 | ||
7532 | case KEY_unless: | |
6154021b | 7533 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
7534 | OPERATOR(UNLESS); |
7535 | ||
7536 | case KEY_unlink: | |
a0d0e21e | 7537 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
7538 | |
7539 | case KEY_undef: | |
6f33ba73 | 7540 | UNIDOR(OP_UNDEF); |
79072805 LW |
7541 | |
7542 | case KEY_unpack: | |
a0d0e21e | 7543 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
7544 | |
7545 | case KEY_utime: | |
a0d0e21e | 7546 | LOP(OP_UTIME,XTERM); |
79072805 LW |
7547 | |
7548 | case KEY_umask: | |
6f33ba73 | 7549 | UNIDOR(OP_UMASK); |
79072805 LW |
7550 | |
7551 | case KEY_unshift: | |
a0d0e21e LW |
7552 | LOP(OP_UNSHIFT,XTERM); |
7553 | ||
7554 | case KEY_use: | |
468aa647 | 7555 | s = tokenize_use(1, s); |
a0d0e21e | 7556 | OPERATOR(USE); |
79072805 LW |
7557 | |
7558 | case KEY_values: | |
7559 | UNI(OP_VALUES); | |
7560 | ||
7561 | case KEY_vec: | |
a0d0e21e | 7562 | LOP(OP_VEC,XTERM); |
79072805 | 7563 | |
0d863452 | 7564 | case KEY_when: |
6154021b | 7565 | pl_yylval.ival = CopLINE(PL_curcop); |
0d863452 RH |
7566 | OPERATOR(WHEN); |
7567 | ||
79072805 | 7568 | case KEY_while: |
6154021b | 7569 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
7570 | OPERATOR(WHILE); |
7571 | ||
7572 | case KEY_warn: | |
3280af22 | 7573 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 7574 | LOP(OP_WARN,XTERM); |
79072805 LW |
7575 | |
7576 | case KEY_wait: | |
7577 | FUN0(OP_WAIT); | |
7578 | ||
7579 | case KEY_waitpid: | |
a0d0e21e | 7580 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
7581 | |
7582 | case KEY_wantarray: | |
7583 | FUN0(OP_WANTARRAY); | |
7584 | ||
7585 | case KEY_write: | |
9d116dd7 JH |
7586 | #ifdef EBCDIC |
7587 | { | |
df3728a2 JH |
7588 | char ctl_l[2]; |
7589 | ctl_l[0] = toCTRL('L'); | |
7590 | ctl_l[1] = '\0'; | |
fafc274c | 7591 | gv_fetchpvn_flags(ctl_l, 1, GV_ADD|GV_NOTQUAL, SVt_PV); |
9d116dd7 JH |
7592 | } |
7593 | #else | |
fafc274c NC |
7594 | /* Make sure $^L is defined */ |
7595 | gv_fetchpvs("\f", GV_ADD|GV_NOTQUAL, SVt_PV); | |
9d116dd7 | 7596 | #endif |
79072805 LW |
7597 | UNI(OP_ENTERWRITE); |
7598 | ||
7599 | case KEY_x: | |
3280af22 | 7600 | if (PL_expect == XOPERATOR) |
79072805 LW |
7601 | Mop(OP_REPEAT); |
7602 | check_uni(); | |
7603 | goto just_a_word; | |
7604 | ||
a0d0e21e | 7605 | case KEY_xor: |
6154021b | 7606 | pl_yylval.ival = OP_XOR; |
a0d0e21e LW |
7607 | OPERATOR(OROP); |
7608 | ||
79072805 LW |
7609 | case KEY_y: |
7610 | s = scan_trans(s); | |
7611 | TERM(sublex_start()); | |
7612 | } | |
49dc05e3 | 7613 | }} |
79072805 | 7614 | } |
bf4acbe4 GS |
7615 | #ifdef __SC__ |
7616 | #pragma segment Main | |
7617 | #endif | |
79072805 | 7618 | |
e930465f JH |
7619 | static int |
7620 | S_pending_ident(pTHX) | |
8eceec63 | 7621 | { |
97aff369 | 7622 | dVAR; |
8eceec63 | 7623 | register char *d; |
bbd11bfc | 7624 | PADOFFSET tmp = 0; |
8eceec63 SC |
7625 | /* pit holds the identifier we read and pending_ident is reset */ |
7626 | char pit = PL_pending_ident; | |
9bde8eb0 NC |
7627 | const STRLEN tokenbuf_len = strlen(PL_tokenbuf); |
7628 | /* All routes through this function want to know if there is a colon. */ | |
c099d646 | 7629 | const char *const has_colon = (const char*) memchr (PL_tokenbuf, ':', tokenbuf_len); |
8eceec63 SC |
7630 | PL_pending_ident = 0; |
7631 | ||
cd81e915 | 7632 | /* PL_realtokenstart = realtokenend = PL_bufptr - SvPVX(PL_linestr); */ |
8eceec63 | 7633 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 7634 | "### Pending identifier '%s'\n", PL_tokenbuf); }); |
8eceec63 SC |
7635 | |
7636 | /* if we're in a my(), we can't allow dynamics here. | |
7637 | $foo'bar has already been turned into $foo::bar, so | |
7638 | just check for colons. | |
7639 | ||
7640 | if it's a legal name, the OP is a PADANY. | |
7641 | */ | |
7642 | if (PL_in_my) { | |
7643 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
9bde8eb0 | 7644 | if (has_colon) |
8eceec63 SC |
7645 | yyerror(Perl_form(aTHX_ "No package name allowed for " |
7646 | "variable %s in \"our\"", | |
7647 | PL_tokenbuf)); | |
d6447115 | 7648 | tmp = allocmy(PL_tokenbuf, tokenbuf_len, 0); |
8eceec63 SC |
7649 | } |
7650 | else { | |
9bde8eb0 | 7651 | if (has_colon) |
952306ac RGS |
7652 | yyerror(Perl_form(aTHX_ PL_no_myglob, |
7653 | PL_in_my == KEY_my ? "my" : "state", PL_tokenbuf)); | |
8eceec63 | 7654 | |
6154021b | 7655 | pl_yylval.opval = newOP(OP_PADANY, 0); |
d6447115 | 7656 | pl_yylval.opval->op_targ = allocmy(PL_tokenbuf, tokenbuf_len, 0); |
8eceec63 SC |
7657 | return PRIVATEREF; |
7658 | } | |
7659 | } | |
7660 | ||
7661 | /* | |
7662 | build the ops for accesses to a my() variable. | |
7663 | ||
7664 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
7665 | then used in a comparison. This catches most, but not | |
7666 | all cases. For instance, it catches | |
7667 | sort { my($a); $a <=> $b } | |
7668 | but not | |
7669 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
7670 | (although why you'd do that is anyone's guess). | |
7671 | */ | |
7672 | ||
9bde8eb0 | 7673 | if (!has_colon) { |
8716503d | 7674 | if (!PL_in_my) |
f8f98e0a | 7675 | tmp = pad_findmy(PL_tokenbuf, tokenbuf_len, 0); |
8716503d | 7676 | if (tmp != NOT_IN_PAD) { |
8eceec63 | 7677 | /* might be an "our" variable" */ |
00b1698f | 7678 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
8eceec63 | 7679 | /* build ops for a bareword */ |
b64e5050 AL |
7680 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
7681 | HEK * const stashname = HvNAME_HEK(stash); | |
7682 | SV * const sym = newSVhek(stashname); | |
396482e1 | 7683 | sv_catpvs(sym, "::"); |
9bde8eb0 | 7684 | sv_catpvn(sym, PL_tokenbuf+1, tokenbuf_len - 1); |
6154021b RGS |
7685 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); |
7686 | pl_yylval.opval->op_private = OPpCONST_ENTERED; | |
7a5fd60d | 7687 | gv_fetchsv(sym, |
8eceec63 SC |
7688 | (PL_in_eval |
7689 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 7690 | : GV_ADDMULTI |
8eceec63 SC |
7691 | ), |
7692 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
7693 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
7694 | : SVt_PVHV)); | |
7695 | return WORD; | |
7696 | } | |
7697 | ||
7698 | /* if it's a sort block and they're naming $a or $b */ | |
7699 | if (PL_last_lop_op == OP_SORT && | |
7700 | PL_tokenbuf[0] == '$' && | |
7701 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
7702 | && !PL_tokenbuf[2]) | |
7703 | { | |
7704 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
7705 | d < PL_bufend && *d != '\n'; | |
7706 | d++) | |
7707 | { | |
7708 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
7709 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
7710 | PL_tokenbuf); | |
7711 | } | |
7712 | } | |
7713 | } | |
7714 | ||
6154021b RGS |
7715 | pl_yylval.opval = newOP(OP_PADANY, 0); |
7716 | pl_yylval.opval->op_targ = tmp; | |
8eceec63 SC |
7717 | return PRIVATEREF; |
7718 | } | |
7719 | } | |
7720 | ||
7721 | /* | |
7722 | Whine if they've said @foo in a doublequoted string, | |
7723 | and @foo isn't a variable we can find in the symbol | |
7724 | table. | |
7725 | */ | |
d824713b NC |
7726 | if (ckWARN(WARN_AMBIGUOUS) && |
7727 | pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
9bde8eb0 NC |
7728 | GV *const gv = gv_fetchpvn_flags(PL_tokenbuf + 1, tokenbuf_len - 1, 0, |
7729 | SVt_PVAV); | |
8eceec63 | 7730 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
e879d94f RGS |
7731 | /* DO NOT warn for @- and @+ */ |
7732 | && !( PL_tokenbuf[2] == '\0' && | |
7733 | ( PL_tokenbuf[1] == '-' || PL_tokenbuf[1] == '+' )) | |
7734 | ) | |
8eceec63 SC |
7735 | { |
7736 | /* Downgraded from fatal to warning 20000522 mjd */ | |
d824713b NC |
7737 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
7738 | "Possible unintended interpolation of %s in string", | |
7739 | PL_tokenbuf); | |
8eceec63 SC |
7740 | } |
7741 | } | |
7742 | ||
7743 | /* build ops for a bareword */ | |
6154021b | 7744 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpvn(PL_tokenbuf + 1, |
9bde8eb0 | 7745 | tokenbuf_len - 1)); |
6154021b | 7746 | pl_yylval.opval->op_private = OPpCONST_ENTERED; |
9bde8eb0 NC |
7747 | gv_fetchpvn_flags( |
7748 | PL_tokenbuf + 1, tokenbuf_len - 1, | |
d6069db2 RGS |
7749 | /* If the identifier refers to a stash, don't autovivify it. |
7750 | * Change 24660 had the side effect of causing symbol table | |
7751 | * hashes to always be defined, even if they were freshly | |
7752 | * created and the only reference in the entire program was | |
7753 | * the single statement with the defined %foo::bar:: test. | |
7754 | * It appears that all code in the wild doing this actually | |
7755 | * wants to know whether sub-packages have been loaded, so | |
7756 | * by avoiding auto-vivifying symbol tables, we ensure that | |
7757 | * defined %foo::bar:: continues to be false, and the existing | |
7758 | * tests still give the expected answers, even though what | |
7759 | * they're actually testing has now changed subtly. | |
7760 | */ | |
9bde8eb0 NC |
7761 | (*PL_tokenbuf == '%' |
7762 | && *(d = PL_tokenbuf + tokenbuf_len - 1) == ':' | |
7763 | && d[-1] == ':' | |
d6069db2 RGS |
7764 | ? 0 |
7765 | : PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD), | |
adc51b97 RGS |
7766 | ((PL_tokenbuf[0] == '$') ? SVt_PV |
7767 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
7768 | : SVt_PVHV)); | |
8eceec63 SC |
7769 | return WORD; |
7770 | } | |
7771 | ||
4c3bbe0f MHM |
7772 | /* |
7773 | * The following code was generated by perl_keyword.pl. | |
7774 | */ | |
e2e1dd5a | 7775 | |
79072805 | 7776 | I32 |
5458a98a | 7777 | Perl_keyword (pTHX_ const char *name, I32 len, bool all_keywords) |
4c3bbe0f | 7778 | { |
952306ac | 7779 | dVAR; |
7918f24d NC |
7780 | |
7781 | PERL_ARGS_ASSERT_KEYWORD; | |
7782 | ||
4c3bbe0f MHM |
7783 | switch (len) |
7784 | { | |
7785 | case 1: /* 5 tokens of length 1 */ | |
7786 | switch (name[0]) | |
e2e1dd5a | 7787 | { |
4c3bbe0f MHM |
7788 | case 'm': |
7789 | { /* m */ | |
7790 | return KEY_m; | |
7791 | } | |
7792 | ||
4c3bbe0f MHM |
7793 | case 'q': |
7794 | { /* q */ | |
7795 | return KEY_q; | |
7796 | } | |
7797 | ||
4c3bbe0f MHM |
7798 | case 's': |
7799 | { /* s */ | |
7800 | return KEY_s; | |
7801 | } | |
7802 | ||
4c3bbe0f MHM |
7803 | case 'x': |
7804 | { /* x */ | |
7805 | return -KEY_x; | |
7806 | } | |
7807 | ||
4c3bbe0f MHM |
7808 | case 'y': |
7809 | { /* y */ | |
7810 | return KEY_y; | |
7811 | } | |
7812 | ||
4c3bbe0f MHM |
7813 | default: |
7814 | goto unknown; | |
e2e1dd5a | 7815 | } |
4c3bbe0f MHM |
7816 | |
7817 | case 2: /* 18 tokens of length 2 */ | |
7818 | switch (name[0]) | |
e2e1dd5a | 7819 | { |
4c3bbe0f MHM |
7820 | case 'd': |
7821 | if (name[1] == 'o') | |
7822 | { /* do */ | |
7823 | return KEY_do; | |
7824 | } | |
7825 | ||
7826 | goto unknown; | |
7827 | ||
7828 | case 'e': | |
7829 | if (name[1] == 'q') | |
7830 | { /* eq */ | |
7831 | return -KEY_eq; | |
7832 | } | |
7833 | ||
7834 | goto unknown; | |
7835 | ||
7836 | case 'g': | |
7837 | switch (name[1]) | |
7838 | { | |
7839 | case 'e': | |
7840 | { /* ge */ | |
7841 | return -KEY_ge; | |
7842 | } | |
7843 | ||
4c3bbe0f MHM |
7844 | case 't': |
7845 | { /* gt */ | |
7846 | return -KEY_gt; | |
7847 | } | |
7848 | ||
4c3bbe0f MHM |
7849 | default: |
7850 | goto unknown; | |
7851 | } | |
7852 | ||
7853 | case 'i': | |
7854 | if (name[1] == 'f') | |
7855 | { /* if */ | |
7856 | return KEY_if; | |
7857 | } | |
7858 | ||
7859 | goto unknown; | |
7860 | ||
7861 | case 'l': | |
7862 | switch (name[1]) | |
7863 | { | |
7864 | case 'c': | |
7865 | { /* lc */ | |
7866 | return -KEY_lc; | |
7867 | } | |
7868 | ||
4c3bbe0f MHM |
7869 | case 'e': |
7870 | { /* le */ | |
7871 | return -KEY_le; | |
7872 | } | |
7873 | ||
4c3bbe0f MHM |
7874 | case 't': |
7875 | { /* lt */ | |
7876 | return -KEY_lt; | |
7877 | } | |
7878 | ||
4c3bbe0f MHM |
7879 | default: |
7880 | goto unknown; | |
7881 | } | |
7882 | ||
7883 | case 'm': | |
7884 | if (name[1] == 'y') | |
7885 | { /* my */ | |
7886 | return KEY_my; | |
7887 | } | |
7888 | ||
7889 | goto unknown; | |
7890 | ||
7891 | case 'n': | |
7892 | switch (name[1]) | |
7893 | { | |
7894 | case 'e': | |
7895 | { /* ne */ | |
7896 | return -KEY_ne; | |
7897 | } | |
7898 | ||
4c3bbe0f MHM |
7899 | case 'o': |
7900 | { /* no */ | |
7901 | return KEY_no; | |
7902 | } | |
7903 | ||
4c3bbe0f MHM |
7904 | default: |
7905 | goto unknown; | |
7906 | } | |
7907 | ||
7908 | case 'o': | |
7909 | if (name[1] == 'r') | |
7910 | { /* or */ | |
7911 | return -KEY_or; | |
7912 | } | |
7913 | ||
7914 | goto unknown; | |
7915 | ||
7916 | case 'q': | |
7917 | switch (name[1]) | |
7918 | { | |
7919 | case 'q': | |
7920 | { /* qq */ | |
7921 | return KEY_qq; | |
7922 | } | |
7923 | ||
4c3bbe0f MHM |
7924 | case 'r': |
7925 | { /* qr */ | |
7926 | return KEY_qr; | |
7927 | } | |
7928 | ||
4c3bbe0f MHM |
7929 | case 'w': |
7930 | { /* qw */ | |
7931 | return KEY_qw; | |
7932 | } | |
7933 | ||
4c3bbe0f MHM |
7934 | case 'x': |
7935 | { /* qx */ | |
7936 | return KEY_qx; | |
7937 | } | |
7938 | ||
4c3bbe0f MHM |
7939 | default: |
7940 | goto unknown; | |
7941 | } | |
7942 | ||
7943 | case 't': | |
7944 | if (name[1] == 'r') | |
7945 | { /* tr */ | |
7946 | return KEY_tr; | |
7947 | } | |
7948 | ||
7949 | goto unknown; | |
7950 | ||
7951 | case 'u': | |
7952 | if (name[1] == 'c') | |
7953 | { /* uc */ | |
7954 | return -KEY_uc; | |
7955 | } | |
7956 | ||
7957 | goto unknown; | |
7958 | ||
7959 | default: | |
7960 | goto unknown; | |
e2e1dd5a | 7961 | } |
4c3bbe0f | 7962 | |
0d863452 | 7963 | case 3: /* 29 tokens of length 3 */ |
4c3bbe0f | 7964 | switch (name[0]) |
e2e1dd5a | 7965 | { |
4c3bbe0f MHM |
7966 | case 'E': |
7967 | if (name[1] == 'N' && | |
7968 | name[2] == 'D') | |
7969 | { /* END */ | |
7970 | return KEY_END; | |
7971 | } | |
7972 | ||
7973 | goto unknown; | |
7974 | ||
7975 | case 'a': | |
7976 | switch (name[1]) | |
7977 | { | |
7978 | case 'b': | |
7979 | if (name[2] == 's') | |
7980 | { /* abs */ | |
7981 | return -KEY_abs; | |
7982 | } | |
7983 | ||
7984 | goto unknown; | |
7985 | ||
7986 | case 'n': | |
7987 | if (name[2] == 'd') | |
7988 | { /* and */ | |
7989 | return -KEY_and; | |
7990 | } | |
7991 | ||
7992 | goto unknown; | |
7993 | ||
7994 | default: | |
7995 | goto unknown; | |
7996 | } | |
7997 | ||
7998 | case 'c': | |
7999 | switch (name[1]) | |
8000 | { | |
8001 | case 'h': | |
8002 | if (name[2] == 'r') | |
8003 | { /* chr */ | |
8004 | return -KEY_chr; | |
8005 | } | |
8006 | ||
8007 | goto unknown; | |
8008 | ||
8009 | case 'm': | |
8010 | if (name[2] == 'p') | |
8011 | { /* cmp */ | |
8012 | return -KEY_cmp; | |
8013 | } | |
8014 | ||
8015 | goto unknown; | |
8016 | ||
8017 | case 'o': | |
8018 | if (name[2] == 's') | |
8019 | { /* cos */ | |
8020 | return -KEY_cos; | |
8021 | } | |
8022 | ||
8023 | goto unknown; | |
8024 | ||
8025 | default: | |
8026 | goto unknown; | |
8027 | } | |
8028 | ||
8029 | case 'd': | |
8030 | if (name[1] == 'i' && | |
8031 | name[2] == 'e') | |
8032 | { /* die */ | |
8033 | return -KEY_die; | |
8034 | } | |
8035 | ||
8036 | goto unknown; | |
8037 | ||
8038 | case 'e': | |
8039 | switch (name[1]) | |
8040 | { | |
8041 | case 'o': | |
8042 | if (name[2] == 'f') | |
8043 | { /* eof */ | |
8044 | return -KEY_eof; | |
8045 | } | |
8046 | ||
8047 | goto unknown; | |
8048 | ||
4c3bbe0f MHM |
8049 | case 'x': |
8050 | if (name[2] == 'p') | |
8051 | { /* exp */ | |
8052 | return -KEY_exp; | |
8053 | } | |
8054 | ||
8055 | goto unknown; | |
8056 | ||
8057 | default: | |
8058 | goto unknown; | |
8059 | } | |
8060 | ||
8061 | case 'f': | |
8062 | if (name[1] == 'o' && | |
8063 | name[2] == 'r') | |
8064 | { /* for */ | |
8065 | return KEY_for; | |
8066 | } | |
8067 | ||
8068 | goto unknown; | |
8069 | ||
8070 | case 'h': | |
8071 | if (name[1] == 'e' && | |
8072 | name[2] == 'x') | |
8073 | { /* hex */ | |
8074 | return -KEY_hex; | |
8075 | } | |
8076 | ||
8077 | goto unknown; | |
8078 | ||
8079 | case 'i': | |
8080 | if (name[1] == 'n' && | |
8081 | name[2] == 't') | |
8082 | { /* int */ | |
8083 | return -KEY_int; | |
8084 | } | |
8085 | ||
8086 | goto unknown; | |
8087 | ||
8088 | case 'l': | |
8089 | if (name[1] == 'o' && | |
8090 | name[2] == 'g') | |
8091 | { /* log */ | |
8092 | return -KEY_log; | |
8093 | } | |
8094 | ||
8095 | goto unknown; | |
8096 | ||
8097 | case 'm': | |
8098 | if (name[1] == 'a' && | |
8099 | name[2] == 'p') | |
8100 | { /* map */ | |
8101 | return KEY_map; | |
8102 | } | |
8103 | ||
8104 | goto unknown; | |
8105 | ||
8106 | case 'n': | |
8107 | if (name[1] == 'o' && | |
8108 | name[2] == 't') | |
8109 | { /* not */ | |
8110 | return -KEY_not; | |
8111 | } | |
8112 | ||
8113 | goto unknown; | |
8114 | ||
8115 | case 'o': | |
8116 | switch (name[1]) | |
8117 | { | |
8118 | case 'c': | |
8119 | if (name[2] == 't') | |
8120 | { /* oct */ | |
8121 | return -KEY_oct; | |
8122 | } | |
8123 | ||
8124 | goto unknown; | |
8125 | ||
8126 | case 'r': | |
8127 | if (name[2] == 'd') | |
8128 | { /* ord */ | |
8129 | return -KEY_ord; | |
8130 | } | |
8131 | ||
8132 | goto unknown; | |
8133 | ||
8134 | case 'u': | |
8135 | if (name[2] == 'r') | |
8136 | { /* our */ | |
8137 | return KEY_our; | |
8138 | } | |
8139 | ||
8140 | goto unknown; | |
8141 | ||
8142 | default: | |
8143 | goto unknown; | |
8144 | } | |
8145 | ||
8146 | case 'p': | |
8147 | if (name[1] == 'o') | |
8148 | { | |
8149 | switch (name[2]) | |
8150 | { | |
8151 | case 'p': | |
8152 | { /* pop */ | |
8153 | return -KEY_pop; | |
8154 | } | |
8155 | ||
4c3bbe0f MHM |
8156 | case 's': |
8157 | { /* pos */ | |
8158 | return KEY_pos; | |
8159 | } | |
8160 | ||
4c3bbe0f MHM |
8161 | default: |
8162 | goto unknown; | |
8163 | } | |
8164 | } | |
8165 | ||
8166 | goto unknown; | |
8167 | ||
8168 | case 'r': | |
8169 | if (name[1] == 'e' && | |
8170 | name[2] == 'f') | |
8171 | { /* ref */ | |
8172 | return -KEY_ref; | |
8173 | } | |
8174 | ||
8175 | goto unknown; | |
8176 | ||
8177 | case 's': | |
8178 | switch (name[1]) | |
8179 | { | |
0d863452 RH |
8180 | case 'a': |
8181 | if (name[2] == 'y') | |
8182 | { /* say */ | |
e3e804c9 | 8183 | return (all_keywords || FEATURE_IS_ENABLED("say") ? KEY_say : 0); |
0d863452 RH |
8184 | } |
8185 | ||
8186 | goto unknown; | |
8187 | ||
4c3bbe0f MHM |
8188 | case 'i': |
8189 | if (name[2] == 'n') | |
8190 | { /* sin */ | |
8191 | return -KEY_sin; | |
8192 | } | |
8193 | ||
8194 | goto unknown; | |
8195 | ||
8196 | case 'u': | |
8197 | if (name[2] == 'b') | |
8198 | { /* sub */ | |
8199 | return KEY_sub; | |
8200 | } | |
8201 | ||
8202 | goto unknown; | |
8203 | ||
8204 | default: | |
8205 | goto unknown; | |
8206 | } | |
8207 | ||
8208 | case 't': | |
8209 | if (name[1] == 'i' && | |
8210 | name[2] == 'e') | |
8211 | { /* tie */ | |
8212 | return KEY_tie; | |
8213 | } | |
8214 | ||
8215 | goto unknown; | |
8216 | ||
8217 | case 'u': | |
8218 | if (name[1] == 's' && | |
8219 | name[2] == 'e') | |
8220 | { /* use */ | |
8221 | return KEY_use; | |
8222 | } | |
8223 | ||
8224 | goto unknown; | |
8225 | ||
8226 | case 'v': | |
8227 | if (name[1] == 'e' && | |
8228 | name[2] == 'c') | |
8229 | { /* vec */ | |
8230 | return -KEY_vec; | |
8231 | } | |
8232 | ||
8233 | goto unknown; | |
8234 | ||
8235 | case 'x': | |
8236 | if (name[1] == 'o' && | |
8237 | name[2] == 'r') | |
8238 | { /* xor */ | |
8239 | return -KEY_xor; | |
8240 | } | |
8241 | ||
8242 | goto unknown; | |
8243 | ||
8244 | default: | |
8245 | goto unknown; | |
e2e1dd5a | 8246 | } |
4c3bbe0f | 8247 | |
0d863452 | 8248 | case 4: /* 41 tokens of length 4 */ |
4c3bbe0f | 8249 | switch (name[0]) |
e2e1dd5a | 8250 | { |
4c3bbe0f MHM |
8251 | case 'C': |
8252 | if (name[1] == 'O' && | |
8253 | name[2] == 'R' && | |
8254 | name[3] == 'E') | |
8255 | { /* CORE */ | |
8256 | return -KEY_CORE; | |
8257 | } | |
8258 | ||
8259 | goto unknown; | |
8260 | ||
8261 | case 'I': | |
8262 | if (name[1] == 'N' && | |
8263 | name[2] == 'I' && | |
8264 | name[3] == 'T') | |
8265 | { /* INIT */ | |
8266 | return KEY_INIT; | |
8267 | } | |
8268 | ||
8269 | goto unknown; | |
8270 | ||
8271 | case 'b': | |
8272 | if (name[1] == 'i' && | |
8273 | name[2] == 'n' && | |
8274 | name[3] == 'd') | |
8275 | { /* bind */ | |
8276 | return -KEY_bind; | |
8277 | } | |
8278 | ||
8279 | goto unknown; | |
8280 | ||
8281 | case 'c': | |
8282 | if (name[1] == 'h' && | |
8283 | name[2] == 'o' && | |
8284 | name[3] == 'p') | |
8285 | { /* chop */ | |
8286 | return -KEY_chop; | |
8287 | } | |
8288 | ||
8289 | goto unknown; | |
8290 | ||
8291 | case 'd': | |
8292 | if (name[1] == 'u' && | |
8293 | name[2] == 'm' && | |
8294 | name[3] == 'p') | |
8295 | { /* dump */ | |
8296 | return -KEY_dump; | |
8297 | } | |
8298 | ||
8299 | goto unknown; | |
8300 | ||
8301 | case 'e': | |
8302 | switch (name[1]) | |
8303 | { | |
8304 | case 'a': | |
8305 | if (name[2] == 'c' && | |
8306 | name[3] == 'h') | |
8307 | { /* each */ | |
8308 | return -KEY_each; | |
8309 | } | |
8310 | ||
8311 | goto unknown; | |
8312 | ||
8313 | case 'l': | |
8314 | if (name[2] == 's' && | |
8315 | name[3] == 'e') | |
8316 | { /* else */ | |
8317 | return KEY_else; | |
8318 | } | |
8319 | ||
8320 | goto unknown; | |
8321 | ||
8322 | case 'v': | |
8323 | if (name[2] == 'a' && | |
8324 | name[3] == 'l') | |
8325 | { /* eval */ | |
8326 | return KEY_eval; | |
8327 | } | |
8328 | ||
8329 | goto unknown; | |
8330 | ||
8331 | case 'x': | |
8332 | switch (name[2]) | |
8333 | { | |
8334 | case 'e': | |
8335 | if (name[3] == 'c') | |
8336 | { /* exec */ | |
8337 | return -KEY_exec; | |
8338 | } | |
8339 | ||
8340 | goto unknown; | |
8341 | ||
8342 | case 'i': | |
8343 | if (name[3] == 't') | |
8344 | { /* exit */ | |
8345 | return -KEY_exit; | |
8346 | } | |
8347 | ||
8348 | goto unknown; | |
8349 | ||
8350 | default: | |
8351 | goto unknown; | |
8352 | } | |
8353 | ||
8354 | default: | |
8355 | goto unknown; | |
8356 | } | |
8357 | ||
8358 | case 'f': | |
8359 | if (name[1] == 'o' && | |
8360 | name[2] == 'r' && | |
8361 | name[3] == 'k') | |
8362 | { /* fork */ | |
8363 | return -KEY_fork; | |
8364 | } | |
8365 | ||
8366 | goto unknown; | |
8367 | ||
8368 | case 'g': | |
8369 | switch (name[1]) | |
8370 | { | |
8371 | case 'e': | |
8372 | if (name[2] == 't' && | |
8373 | name[3] == 'c') | |
8374 | { /* getc */ | |
8375 | return -KEY_getc; | |
8376 | } | |
8377 | ||
8378 | goto unknown; | |
8379 | ||
8380 | case 'l': | |
8381 | if (name[2] == 'o' && | |
8382 | name[3] == 'b') | |
8383 | { /* glob */ | |
8384 | return KEY_glob; | |
8385 | } | |
8386 | ||
8387 | goto unknown; | |
8388 | ||
8389 | case 'o': | |
8390 | if (name[2] == 't' && | |
8391 | name[3] == 'o') | |
8392 | { /* goto */ | |
8393 | return KEY_goto; | |
8394 | } | |
8395 | ||
8396 | goto unknown; | |
8397 | ||
8398 | case 'r': | |
8399 | if (name[2] == 'e' && | |
8400 | name[3] == 'p') | |
8401 | { /* grep */ | |
8402 | return KEY_grep; | |
8403 | } | |
8404 | ||
8405 | goto unknown; | |
8406 | ||
8407 | default: | |
8408 | goto unknown; | |
8409 | } | |
8410 | ||
8411 | case 'j': | |
8412 | if (name[1] == 'o' && | |
8413 | name[2] == 'i' && | |
8414 | name[3] == 'n') | |
8415 | { /* join */ | |
8416 | return -KEY_join; | |
8417 | } | |
8418 | ||
8419 | goto unknown; | |
8420 | ||
8421 | case 'k': | |
8422 | switch (name[1]) | |
8423 | { | |
8424 | case 'e': | |
8425 | if (name[2] == 'y' && | |
8426 | name[3] == 's') | |
8427 | { /* keys */ | |
8428 | return -KEY_keys; | |
8429 | } | |
8430 | ||
8431 | goto unknown; | |
8432 | ||
8433 | case 'i': | |
8434 | if (name[2] == 'l' && | |
8435 | name[3] == 'l') | |
8436 | { /* kill */ | |
8437 | return -KEY_kill; | |
8438 | } | |
8439 | ||
8440 | goto unknown; | |
8441 | ||
8442 | default: | |
8443 | goto unknown; | |
8444 | } | |
8445 | ||
8446 | case 'l': | |
8447 | switch (name[1]) | |
8448 | { | |
8449 | case 'a': | |
8450 | if (name[2] == 's' && | |
8451 | name[3] == 't') | |
8452 | { /* last */ | |
8453 | return KEY_last; | |
8454 | } | |
8455 | ||
8456 | goto unknown; | |
8457 | ||
8458 | case 'i': | |
8459 | if (name[2] == 'n' && | |
8460 | name[3] == 'k') | |
8461 | { /* link */ | |
8462 | return -KEY_link; | |
8463 | } | |
8464 | ||
8465 | goto unknown; | |
8466 | ||
8467 | case 'o': | |
8468 | if (name[2] == 'c' && | |
8469 | name[3] == 'k') | |
8470 | { /* lock */ | |
8471 | return -KEY_lock; | |
8472 | } | |
8473 | ||
8474 | goto unknown; | |
8475 | ||
8476 | default: | |
8477 | goto unknown; | |
8478 | } | |
8479 | ||
8480 | case 'n': | |
8481 | if (name[1] == 'e' && | |
8482 | name[2] == 'x' && | |
8483 | name[3] == 't') | |
8484 | { /* next */ | |
8485 | return KEY_next; | |
8486 | } | |
8487 | ||
8488 | goto unknown; | |
8489 | ||
8490 | case 'o': | |
8491 | if (name[1] == 'p' && | |
8492 | name[2] == 'e' && | |
8493 | name[3] == 'n') | |
8494 | { /* open */ | |
8495 | return -KEY_open; | |
8496 | } | |
8497 | ||
8498 | goto unknown; | |
8499 | ||
8500 | case 'p': | |
8501 | switch (name[1]) | |
8502 | { | |
8503 | case 'a': | |
8504 | if (name[2] == 'c' && | |
8505 | name[3] == 'k') | |
8506 | { /* pack */ | |
8507 | return -KEY_pack; | |
8508 | } | |
8509 | ||
8510 | goto unknown; | |
8511 | ||
8512 | case 'i': | |
8513 | if (name[2] == 'p' && | |
8514 | name[3] == 'e') | |
8515 | { /* pipe */ | |
8516 | return -KEY_pipe; | |
8517 | } | |
8518 | ||
8519 | goto unknown; | |
8520 | ||
8521 | case 'u': | |
8522 | if (name[2] == 's' && | |
8523 | name[3] == 'h') | |
8524 | { /* push */ | |
8525 | return -KEY_push; | |
8526 | } | |
8527 | ||
8528 | goto unknown; | |
8529 | ||
8530 | default: | |
8531 | goto unknown; | |
8532 | } | |
8533 | ||
8534 | case 'r': | |
8535 | switch (name[1]) | |
8536 | { | |
8537 | case 'a': | |
8538 | if (name[2] == 'n' && | |
8539 | name[3] == 'd') | |
8540 | { /* rand */ | |
8541 | return -KEY_rand; | |
8542 | } | |
8543 | ||
8544 | goto unknown; | |
8545 | ||
8546 | case 'e': | |
8547 | switch (name[2]) | |
8548 | { | |
8549 | case 'a': | |
8550 | if (name[3] == 'd') | |
8551 | { /* read */ | |
8552 | return -KEY_read; | |
8553 | } | |
8554 | ||
8555 | goto unknown; | |
8556 | ||
8557 | case 'c': | |
8558 | if (name[3] == 'v') | |
8559 | { /* recv */ | |
8560 | return -KEY_recv; | |
8561 | } | |
8562 | ||
8563 | goto unknown; | |
8564 | ||
8565 | case 'd': | |
8566 | if (name[3] == 'o') | |
8567 | { /* redo */ | |
8568 | return KEY_redo; | |
8569 | } | |
8570 | ||
8571 | goto unknown; | |
8572 | ||
8573 | default: | |
8574 | goto unknown; | |
8575 | } | |
8576 | ||
8577 | default: | |
8578 | goto unknown; | |
8579 | } | |
8580 | ||
8581 | case 's': | |
8582 | switch (name[1]) | |
8583 | { | |
8584 | case 'e': | |
8585 | switch (name[2]) | |
8586 | { | |
8587 | case 'e': | |
8588 | if (name[3] == 'k') | |
8589 | { /* seek */ | |
8590 | return -KEY_seek; | |
8591 | } | |
8592 | ||
8593 | goto unknown; | |
8594 | ||
8595 | case 'n': | |
8596 | if (name[3] == 'd') | |
8597 | { /* send */ | |
8598 | return -KEY_send; | |
8599 | } | |
8600 | ||
8601 | goto unknown; | |
8602 | ||
8603 | default: | |
8604 | goto unknown; | |
8605 | } | |
8606 | ||
8607 | case 'o': | |
8608 | if (name[2] == 'r' && | |
8609 | name[3] == 't') | |
8610 | { /* sort */ | |
8611 | return KEY_sort; | |
8612 | } | |
8613 | ||
8614 | goto unknown; | |
8615 | ||
8616 | case 'q': | |
8617 | if (name[2] == 'r' && | |
8618 | name[3] == 't') | |
8619 | { /* sqrt */ | |
8620 | return -KEY_sqrt; | |
8621 | } | |
8622 | ||
8623 | goto unknown; | |
8624 | ||
8625 | case 't': | |
8626 | if (name[2] == 'a' && | |
8627 | name[3] == 't') | |
8628 | { /* stat */ | |
8629 | return -KEY_stat; | |
8630 | } | |
8631 | ||
8632 | goto unknown; | |
8633 | ||
8634 | default: | |
8635 | goto unknown; | |
8636 | } | |
8637 | ||
8638 | case 't': | |
8639 | switch (name[1]) | |
8640 | { | |
8641 | case 'e': | |
8642 | if (name[2] == 'l' && | |
8643 | name[3] == 'l') | |
8644 | { /* tell */ | |
8645 | return -KEY_tell; | |
8646 | } | |
8647 | ||
8648 | goto unknown; | |
8649 | ||
8650 | case 'i': | |
8651 | switch (name[2]) | |
8652 | { | |
8653 | case 'e': | |
8654 | if (name[3] == 'd') | |
8655 | { /* tied */ | |
8656 | return KEY_tied; | |
8657 | } | |
8658 | ||
8659 | goto unknown; | |
8660 | ||
8661 | case 'm': | |
8662 | if (name[3] == 'e') | |
8663 | { /* time */ | |
8664 | return -KEY_time; | |
8665 | } | |
8666 | ||
8667 | goto unknown; | |
8668 | ||
8669 | default: | |
8670 | goto unknown; | |
8671 | } | |
8672 | ||
8673 | default: | |
8674 | goto unknown; | |
8675 | } | |
8676 | ||
8677 | case 'w': | |
0d863452 | 8678 | switch (name[1]) |
4c3bbe0f | 8679 | { |
0d863452 | 8680 | case 'a': |
952306ac RGS |
8681 | switch (name[2]) |
8682 | { | |
8683 | case 'i': | |
8684 | if (name[3] == 't') | |
8685 | { /* wait */ | |
8686 | return -KEY_wait; | |
8687 | } | |
4c3bbe0f | 8688 | |
952306ac | 8689 | goto unknown; |
4c3bbe0f | 8690 | |
952306ac RGS |
8691 | case 'r': |
8692 | if (name[3] == 'n') | |
8693 | { /* warn */ | |
8694 | return -KEY_warn; | |
8695 | } | |
4c3bbe0f | 8696 | |
952306ac | 8697 | goto unknown; |
4c3bbe0f | 8698 | |
952306ac RGS |
8699 | default: |
8700 | goto unknown; | |
8701 | } | |
0d863452 RH |
8702 | |
8703 | case 'h': | |
8704 | if (name[2] == 'e' && | |
8705 | name[3] == 'n') | |
8706 | { /* when */ | |
5458a98a | 8707 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_when : 0); |
952306ac | 8708 | } |
4c3bbe0f | 8709 | |
952306ac | 8710 | goto unknown; |
4c3bbe0f | 8711 | |
952306ac RGS |
8712 | default: |
8713 | goto unknown; | |
8714 | } | |
4c3bbe0f | 8715 | |
0d863452 RH |
8716 | default: |
8717 | goto unknown; | |
8718 | } | |
8719 | ||
952306ac | 8720 | case 5: /* 39 tokens of length 5 */ |
4c3bbe0f | 8721 | switch (name[0]) |
e2e1dd5a | 8722 | { |
4c3bbe0f MHM |
8723 | case 'B': |
8724 | if (name[1] == 'E' && | |
8725 | name[2] == 'G' && | |
8726 | name[3] == 'I' && | |
8727 | name[4] == 'N') | |
8728 | { /* BEGIN */ | |
8729 | return KEY_BEGIN; | |
8730 | } | |
8731 | ||
8732 | goto unknown; | |
8733 | ||
8734 | case 'C': | |
8735 | if (name[1] == 'H' && | |
8736 | name[2] == 'E' && | |
8737 | name[3] == 'C' && | |
8738 | name[4] == 'K') | |
8739 | { /* CHECK */ | |
8740 | return KEY_CHECK; | |
8741 | } | |
8742 | ||
8743 | goto unknown; | |
8744 | ||
8745 | case 'a': | |
8746 | switch (name[1]) | |
8747 | { | |
8748 | case 'l': | |
8749 | if (name[2] == 'a' && | |
8750 | name[3] == 'r' && | |
8751 | name[4] == 'm') | |
8752 | { /* alarm */ | |
8753 | return -KEY_alarm; | |
8754 | } | |
8755 | ||
8756 | goto unknown; | |
8757 | ||
8758 | case 't': | |
8759 | if (name[2] == 'a' && | |
8760 | name[3] == 'n' && | |
8761 | name[4] == '2') | |
8762 | { /* atan2 */ | |
8763 | return -KEY_atan2; | |
8764 | } | |
8765 | ||
8766 | goto unknown; | |
8767 | ||
8768 | default: | |
8769 | goto unknown; | |
8770 | } | |
8771 | ||
8772 | case 'b': | |
0d863452 RH |
8773 | switch (name[1]) |
8774 | { | |
8775 | case 'l': | |
8776 | if (name[2] == 'e' && | |
952306ac RGS |
8777 | name[3] == 's' && |
8778 | name[4] == 's') | |
8779 | { /* bless */ | |
8780 | return -KEY_bless; | |
8781 | } | |
4c3bbe0f | 8782 | |
952306ac | 8783 | goto unknown; |
4c3bbe0f | 8784 | |
0d863452 RH |
8785 | case 'r': |
8786 | if (name[2] == 'e' && | |
8787 | name[3] == 'a' && | |
8788 | name[4] == 'k') | |
8789 | { /* break */ | |
5458a98a | 8790 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? -KEY_break : 0); |
0d863452 RH |
8791 | } |
8792 | ||
8793 | goto unknown; | |
8794 | ||
8795 | default: | |
8796 | goto unknown; | |
8797 | } | |
8798 | ||
4c3bbe0f MHM |
8799 | case 'c': |
8800 | switch (name[1]) | |
8801 | { | |
8802 | case 'h': | |
8803 | switch (name[2]) | |
8804 | { | |
8805 | case 'd': | |
8806 | if (name[3] == 'i' && | |
8807 | name[4] == 'r') | |
8808 | { /* chdir */ | |
8809 | return -KEY_chdir; | |
8810 | } | |
8811 | ||
8812 | goto unknown; | |
8813 | ||
8814 | case 'm': | |
8815 | if (name[3] == 'o' && | |
8816 | name[4] == 'd') | |
8817 | { /* chmod */ | |
8818 | return -KEY_chmod; | |
8819 | } | |
8820 | ||
8821 | goto unknown; | |
8822 | ||
8823 | case 'o': | |
8824 | switch (name[3]) | |
8825 | { | |
8826 | case 'm': | |
8827 | if (name[4] == 'p') | |
8828 | { /* chomp */ | |
8829 | return -KEY_chomp; | |
8830 | } | |
8831 | ||
8832 | goto unknown; | |
8833 | ||
8834 | case 'w': | |
8835 | if (name[4] == 'n') | |
8836 | { /* chown */ | |
8837 | return -KEY_chown; | |
8838 | } | |
8839 | ||
8840 | goto unknown; | |
8841 | ||
8842 | default: | |
8843 | goto unknown; | |
8844 | } | |
8845 | ||
8846 | default: | |
8847 | goto unknown; | |
8848 | } | |
8849 | ||
8850 | case 'l': | |
8851 | if (name[2] == 'o' && | |
8852 | name[3] == 's' && | |
8853 | name[4] == 'e') | |
8854 | { /* close */ | |
8855 | return -KEY_close; | |
8856 | } | |
8857 | ||
8858 | goto unknown; | |
8859 | ||
8860 | case 'r': | |
8861 | if (name[2] == 'y' && | |
8862 | name[3] == 'p' && | |
8863 | name[4] == 't') | |
8864 | { /* crypt */ | |
8865 | return -KEY_crypt; | |
8866 | } | |
8867 | ||
8868 | goto unknown; | |
8869 | ||
8870 | default: | |
8871 | goto unknown; | |
8872 | } | |
8873 | ||
8874 | case 'e': | |
8875 | if (name[1] == 'l' && | |
8876 | name[2] == 's' && | |
8877 | name[3] == 'i' && | |
8878 | name[4] == 'f') | |
8879 | { /* elsif */ | |
8880 | return KEY_elsif; | |
8881 | } | |
8882 | ||
8883 | goto unknown; | |
8884 | ||
8885 | case 'f': | |
8886 | switch (name[1]) | |
8887 | { | |
8888 | case 'c': | |
8889 | if (name[2] == 'n' && | |
8890 | name[3] == 't' && | |
8891 | name[4] == 'l') | |
8892 | { /* fcntl */ | |
8893 | return -KEY_fcntl; | |
8894 | } | |
8895 | ||
8896 | goto unknown; | |
8897 | ||
8898 | case 'l': | |
8899 | if (name[2] == 'o' && | |
8900 | name[3] == 'c' && | |
8901 | name[4] == 'k') | |
8902 | { /* flock */ | |
8903 | return -KEY_flock; | |
8904 | } | |
8905 | ||
8906 | goto unknown; | |
8907 | ||
8908 | default: | |
8909 | goto unknown; | |
8910 | } | |
8911 | ||
0d863452 RH |
8912 | case 'g': |
8913 | if (name[1] == 'i' && | |
8914 | name[2] == 'v' && | |
8915 | name[3] == 'e' && | |
8916 | name[4] == 'n') | |
8917 | { /* given */ | |
5458a98a | 8918 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_given : 0); |
0d863452 RH |
8919 | } |
8920 | ||
8921 | goto unknown; | |
8922 | ||
4c3bbe0f MHM |
8923 | case 'i': |
8924 | switch (name[1]) | |
8925 | { | |
8926 | case 'n': | |
8927 | if (name[2] == 'd' && | |
8928 | name[3] == 'e' && | |
8929 | name[4] == 'x') | |
8930 | { /* index */ | |
8931 | return -KEY_index; | |
8932 | } | |
8933 | ||
8934 | goto unknown; | |
8935 | ||
8936 | case 'o': | |
8937 | if (name[2] == 'c' && | |
8938 | name[3] == 't' && | |
8939 | name[4] == 'l') | |
8940 | { /* ioctl */ | |
8941 | return -KEY_ioctl; | |
8942 | } | |
8943 | ||
8944 | goto unknown; | |
8945 | ||
8946 | default: | |
8947 | goto unknown; | |
8948 | } | |
8949 | ||
8950 | case 'l': | |
8951 | switch (name[1]) | |
8952 | { | |
8953 | case 'o': | |
8954 | if (name[2] == 'c' && | |
8955 | name[3] == 'a' && | |
8956 | name[4] == 'l') | |
8957 | { /* local */ | |
8958 | return KEY_local; | |
8959 | } | |
8960 | ||
8961 | goto unknown; | |
8962 | ||
8963 | case 's': | |
8964 | if (name[2] == 't' && | |
8965 | name[3] == 'a' && | |
8966 | name[4] == 't') | |
8967 | { /* lstat */ | |
8968 | return -KEY_lstat; | |
8969 | } | |
8970 | ||
8971 | goto unknown; | |
8972 | ||
8973 | default: | |
8974 | goto unknown; | |
8975 | } | |
8976 | ||
8977 | case 'm': | |
8978 | if (name[1] == 'k' && | |
8979 | name[2] == 'd' && | |
8980 | name[3] == 'i' && | |
8981 | name[4] == 'r') | |
8982 | { /* mkdir */ | |
8983 | return -KEY_mkdir; | |
8984 | } | |
8985 | ||
8986 | goto unknown; | |
8987 | ||
8988 | case 'p': | |
8989 | if (name[1] == 'r' && | |
8990 | name[2] == 'i' && | |
8991 | name[3] == 'n' && | |
8992 | name[4] == 't') | |
8993 | { /* print */ | |
8994 | return KEY_print; | |
8995 | } | |
8996 | ||
8997 | goto unknown; | |
8998 | ||
8999 | case 'r': | |
9000 | switch (name[1]) | |
9001 | { | |
9002 | case 'e': | |
9003 | if (name[2] == 's' && | |
9004 | name[3] == 'e' && | |
9005 | name[4] == 't') | |
9006 | { /* reset */ | |
9007 | return -KEY_reset; | |
9008 | } | |
9009 | ||
9010 | goto unknown; | |
9011 | ||
9012 | case 'm': | |
9013 | if (name[2] == 'd' && | |
9014 | name[3] == 'i' && | |
9015 | name[4] == 'r') | |
9016 | { /* rmdir */ | |
9017 | return -KEY_rmdir; | |
9018 | } | |
9019 | ||
9020 | goto unknown; | |
9021 | ||
9022 | default: | |
9023 | goto unknown; | |
9024 | } | |
9025 | ||
9026 | case 's': | |
9027 | switch (name[1]) | |
9028 | { | |
9029 | case 'e': | |
9030 | if (name[2] == 'm' && | |
9031 | name[3] == 'o' && | |
9032 | name[4] == 'p') | |
9033 | { /* semop */ | |
9034 | return -KEY_semop; | |
9035 | } | |
9036 | ||
9037 | goto unknown; | |
9038 | ||
9039 | case 'h': | |
9040 | if (name[2] == 'i' && | |
9041 | name[3] == 'f' && | |
9042 | name[4] == 't') | |
9043 | { /* shift */ | |
9044 | return -KEY_shift; | |
9045 | } | |
9046 | ||
9047 | goto unknown; | |
9048 | ||
9049 | case 'l': | |
9050 | if (name[2] == 'e' && | |
9051 | name[3] == 'e' && | |
9052 | name[4] == 'p') | |
9053 | { /* sleep */ | |
9054 | return -KEY_sleep; | |
9055 | } | |
9056 | ||
9057 | goto unknown; | |
9058 | ||
9059 | case 'p': | |
9060 | if (name[2] == 'l' && | |
9061 | name[3] == 'i' && | |
9062 | name[4] == 't') | |
9063 | { /* split */ | |
9064 | return KEY_split; | |
9065 | } | |
9066 | ||
9067 | goto unknown; | |
9068 | ||
9069 | case 'r': | |
9070 | if (name[2] == 'a' && | |
9071 | name[3] == 'n' && | |
9072 | name[4] == 'd') | |
9073 | { /* srand */ | |
9074 | return -KEY_srand; | |
9075 | } | |
9076 | ||
9077 | goto unknown; | |
9078 | ||
9079 | case 't': | |
952306ac RGS |
9080 | switch (name[2]) |
9081 | { | |
9082 | case 'a': | |
9083 | if (name[3] == 't' && | |
9084 | name[4] == 'e') | |
9085 | { /* state */ | |
5458a98a | 9086 | return (all_keywords || FEATURE_IS_ENABLED("state") ? KEY_state : 0); |
952306ac | 9087 | } |
4c3bbe0f | 9088 | |
952306ac RGS |
9089 | goto unknown; |
9090 | ||
9091 | case 'u': | |
9092 | if (name[3] == 'd' && | |
9093 | name[4] == 'y') | |
9094 | { /* study */ | |
9095 | return KEY_study; | |
9096 | } | |
9097 | ||
9098 | goto unknown; | |
9099 | ||
9100 | default: | |
9101 | goto unknown; | |
9102 | } | |
4c3bbe0f MHM |
9103 | |
9104 | default: | |
9105 | goto unknown; | |
9106 | } | |
9107 | ||
9108 | case 't': | |
9109 | if (name[1] == 'i' && | |
9110 | name[2] == 'm' && | |
9111 | name[3] == 'e' && | |
9112 | name[4] == 's') | |
9113 | { /* times */ | |
9114 | return -KEY_times; | |
9115 | } | |
9116 | ||
9117 | goto unknown; | |
9118 | ||
9119 | case 'u': | |
9120 | switch (name[1]) | |
9121 | { | |
9122 | case 'm': | |
9123 | if (name[2] == 'a' && | |
9124 | name[3] == 's' && | |
9125 | name[4] == 'k') | |
9126 | { /* umask */ | |
9127 | return -KEY_umask; | |
9128 | } | |
9129 | ||
9130 | goto unknown; | |
9131 | ||
9132 | case 'n': | |
9133 | switch (name[2]) | |
9134 | { | |
9135 | case 'd': | |
9136 | if (name[3] == 'e' && | |
9137 | name[4] == 'f') | |
9138 | { /* undef */ | |
9139 | return KEY_undef; | |
9140 | } | |
9141 | ||
9142 | goto unknown; | |
9143 | ||
9144 | case 't': | |
9145 | if (name[3] == 'i') | |
9146 | { | |
9147 | switch (name[4]) | |
9148 | { | |
9149 | case 'e': | |
9150 | { /* untie */ | |
9151 | return KEY_untie; | |
9152 | } | |
9153 | ||
4c3bbe0f MHM |
9154 | case 'l': |
9155 | { /* until */ | |
9156 | return KEY_until; | |
9157 | } | |
9158 | ||
4c3bbe0f MHM |
9159 | default: |
9160 | goto unknown; | |
9161 | } | |
9162 | } | |
9163 | ||
9164 | goto unknown; | |
9165 | ||
9166 | default: | |
9167 | goto unknown; | |
9168 | } | |
9169 | ||
9170 | case 't': | |
9171 | if (name[2] == 'i' && | |
9172 | name[3] == 'm' && | |
9173 | name[4] == 'e') | |
9174 | { /* utime */ | |
9175 | return -KEY_utime; | |
9176 | } | |
9177 | ||
9178 | goto unknown; | |
9179 | ||
9180 | default: | |
9181 | goto unknown; | |
9182 | } | |
9183 | ||
9184 | case 'w': | |
9185 | switch (name[1]) | |
9186 | { | |
9187 | case 'h': | |
9188 | if (name[2] == 'i' && | |
9189 | name[3] == 'l' && | |
9190 | name[4] == 'e') | |
9191 | { /* while */ | |
9192 | return KEY_while; | |
9193 | } | |
9194 | ||
9195 | goto unknown; | |
9196 | ||
9197 | case 'r': | |
9198 | if (name[2] == 'i' && | |
9199 | name[3] == 't' && | |
9200 | name[4] == 'e') | |
9201 | { /* write */ | |
9202 | return -KEY_write; | |
9203 | } | |
9204 | ||
9205 | goto unknown; | |
9206 | ||
9207 | default: | |
9208 | goto unknown; | |
9209 | } | |
9210 | ||
9211 | default: | |
9212 | goto unknown; | |
e2e1dd5a | 9213 | } |
4c3bbe0f MHM |
9214 | |
9215 | case 6: /* 33 tokens of length 6 */ | |
9216 | switch (name[0]) | |
9217 | { | |
9218 | case 'a': | |
9219 | if (name[1] == 'c' && | |
9220 | name[2] == 'c' && | |
9221 | name[3] == 'e' && | |
9222 | name[4] == 'p' && | |
9223 | name[5] == 't') | |
9224 | { /* accept */ | |
9225 | return -KEY_accept; | |
9226 | } | |
9227 | ||
9228 | goto unknown; | |
9229 | ||
9230 | case 'c': | |
9231 | switch (name[1]) | |
9232 | { | |
9233 | case 'a': | |
9234 | if (name[2] == 'l' && | |
9235 | name[3] == 'l' && | |
9236 | name[4] == 'e' && | |
9237 | name[5] == 'r') | |
9238 | { /* caller */ | |
9239 | return -KEY_caller; | |
9240 | } | |
9241 | ||
9242 | goto unknown; | |
9243 | ||
9244 | case 'h': | |
9245 | if (name[2] == 'r' && | |
9246 | name[3] == 'o' && | |
9247 | name[4] == 'o' && | |
9248 | name[5] == 't') | |
9249 | { /* chroot */ | |
9250 | return -KEY_chroot; | |
9251 | } | |
9252 | ||
9253 | goto unknown; | |
9254 | ||
9255 | default: | |
9256 | goto unknown; | |
9257 | } | |
9258 | ||
9259 | case 'd': | |
9260 | if (name[1] == 'e' && | |
9261 | name[2] == 'l' && | |
9262 | name[3] == 'e' && | |
9263 | name[4] == 't' && | |
9264 | name[5] == 'e') | |
9265 | { /* delete */ | |
9266 | return KEY_delete; | |
9267 | } | |
9268 | ||
9269 | goto unknown; | |
9270 | ||
9271 | case 'e': | |
9272 | switch (name[1]) | |
9273 | { | |
9274 | case 'l': | |
9275 | if (name[2] == 's' && | |
9276 | name[3] == 'e' && | |
9277 | name[4] == 'i' && | |
9278 | name[5] == 'f') | |
9279 | { /* elseif */ | |
9b387841 | 9280 | Perl_ck_warner_d(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); |
4c3bbe0f MHM |
9281 | } |
9282 | ||
9283 | goto unknown; | |
9284 | ||
9285 | case 'x': | |
9286 | if (name[2] == 'i' && | |
9287 | name[3] == 's' && | |
9288 | name[4] == 't' && | |
9289 | name[5] == 's') | |
9290 | { /* exists */ | |
9291 | return KEY_exists; | |
9292 | } | |
9293 | ||
9294 | goto unknown; | |
9295 | ||
9296 | default: | |
9297 | goto unknown; | |
9298 | } | |
9299 | ||
9300 | case 'f': | |
9301 | switch (name[1]) | |
9302 | { | |
9303 | case 'i': | |
9304 | if (name[2] == 'l' && | |
9305 | name[3] == 'e' && | |
9306 | name[4] == 'n' && | |
9307 | name[5] == 'o') | |
9308 | { /* fileno */ | |
9309 | return -KEY_fileno; | |
9310 | } | |
9311 | ||
9312 | goto unknown; | |
9313 | ||
9314 | case 'o': | |
9315 | if (name[2] == 'r' && | |
9316 | name[3] == 'm' && | |
9317 | name[4] == 'a' && | |
9318 | name[5] == 't') | |
9319 | { /* format */ | |
9320 | return KEY_format; | |
9321 | } | |
9322 | ||
9323 | goto unknown; | |
9324 | ||
9325 | default: | |
9326 | goto unknown; | |
9327 | } | |
9328 | ||
9329 | case 'g': | |
9330 | if (name[1] == 'm' && | |
9331 | name[2] == 't' && | |
9332 | name[3] == 'i' && | |
9333 | name[4] == 'm' && | |
9334 | name[5] == 'e') | |
9335 | { /* gmtime */ | |
9336 | return -KEY_gmtime; | |
9337 | } | |
9338 | ||
9339 | goto unknown; | |
9340 | ||
9341 | case 'l': | |
9342 | switch (name[1]) | |
9343 | { | |
9344 | case 'e': | |
9345 | if (name[2] == 'n' && | |
9346 | name[3] == 'g' && | |
9347 | name[4] == 't' && | |
9348 | name[5] == 'h') | |
9349 | { /* length */ | |
9350 | return -KEY_length; | |
9351 | } | |
9352 | ||
9353 | goto unknown; | |
9354 | ||
9355 | case 'i': | |
9356 | if (name[2] == 's' && | |
9357 | name[3] == 't' && | |
9358 | name[4] == 'e' && | |
9359 | name[5] == 'n') | |
9360 | { /* listen */ | |
9361 | return -KEY_listen; | |
9362 | } | |
9363 | ||
9364 | goto unknown; | |
9365 | ||
9366 | default: | |
9367 | goto unknown; | |
9368 | } | |
9369 | ||
9370 | case 'm': | |
9371 | if (name[1] == 's' && | |
9372 | name[2] == 'g') | |
9373 | { | |
9374 | switch (name[3]) | |
9375 | { | |
9376 | case 'c': | |
9377 | if (name[4] == 't' && | |
9378 | name[5] == 'l') | |
9379 | { /* msgctl */ | |
9380 | return -KEY_msgctl; | |
9381 | } | |
9382 | ||
9383 | goto unknown; | |
9384 | ||
9385 | case 'g': | |
9386 | if (name[4] == 'e' && | |
9387 | name[5] == 't') | |
9388 | { /* msgget */ | |
9389 | return -KEY_msgget; | |
9390 | } | |
9391 | ||
9392 | goto unknown; | |
9393 | ||
9394 | case 'r': | |
9395 | if (name[4] == 'c' && | |
9396 | name[5] == 'v') | |
9397 | { /* msgrcv */ | |
9398 | return -KEY_msgrcv; | |
9399 | } | |
9400 | ||
9401 | goto unknown; | |
9402 | ||
9403 | case 's': | |
9404 | if (name[4] == 'n' && | |
9405 | name[5] == 'd') | |
9406 | { /* msgsnd */ | |
9407 | return -KEY_msgsnd; | |
9408 | } | |
9409 | ||
9410 | goto unknown; | |
9411 | ||
9412 | default: | |
9413 | goto unknown; | |
9414 | } | |
9415 | } | |
9416 | ||
9417 | goto unknown; | |
9418 | ||
9419 | case 'p': | |
9420 | if (name[1] == 'r' && | |
9421 | name[2] == 'i' && | |
9422 | name[3] == 'n' && | |
9423 | name[4] == 't' && | |
9424 | name[5] == 'f') | |
9425 | { /* printf */ | |
9426 | return KEY_printf; | |
9427 | } | |
9428 | ||
9429 | goto unknown; | |
9430 | ||
9431 | case 'r': | |
9432 | switch (name[1]) | |
9433 | { | |
9434 | case 'e': | |
9435 | switch (name[2]) | |
9436 | { | |
9437 | case 'n': | |
9438 | if (name[3] == 'a' && | |
9439 | name[4] == 'm' && | |
9440 | name[5] == 'e') | |
9441 | { /* rename */ | |
9442 | return -KEY_rename; | |
9443 | } | |
9444 | ||
9445 | goto unknown; | |
9446 | ||
9447 | case 't': | |
9448 | if (name[3] == 'u' && | |
9449 | name[4] == 'r' && | |
9450 | name[5] == 'n') | |
9451 | { /* return */ | |
9452 | return KEY_return; | |
9453 | } | |
9454 | ||
9455 | goto unknown; | |
9456 | ||
9457 | default: | |
9458 | goto unknown; | |
9459 | } | |
9460 | ||
9461 | case 'i': | |
9462 | if (name[2] == 'n' && | |
9463 | name[3] == 'd' && | |
9464 | name[4] == 'e' && | |
9465 | name[5] == 'x') | |
9466 | { /* rindex */ | |
9467 | return -KEY_rindex; | |
9468 | } | |
9469 | ||
9470 | goto unknown; | |
9471 | ||
9472 | default: | |
9473 | goto unknown; | |
9474 | } | |
9475 | ||
9476 | case 's': | |
9477 | switch (name[1]) | |
9478 | { | |
9479 | case 'c': | |
9480 | if (name[2] == 'a' && | |
9481 | name[3] == 'l' && | |
9482 | name[4] == 'a' && | |
9483 | name[5] == 'r') | |
9484 | { /* scalar */ | |
9485 | return KEY_scalar; | |
9486 | } | |
9487 | ||
9488 | goto unknown; | |
9489 | ||
9490 | case 'e': | |
9491 | switch (name[2]) | |
9492 | { | |
9493 | case 'l': | |
9494 | if (name[3] == 'e' && | |
9495 | name[4] == 'c' && | |
9496 | name[5] == 't') | |
9497 | { /* select */ | |
9498 | return -KEY_select; | |
9499 | } | |
9500 | ||
9501 | goto unknown; | |
9502 | ||
9503 | case 'm': | |
9504 | switch (name[3]) | |
9505 | { | |
9506 | case 'c': | |
9507 | if (name[4] == 't' && | |
9508 | name[5] == 'l') | |
9509 | { /* semctl */ | |
9510 | return -KEY_semctl; | |
9511 | } | |
9512 | ||
9513 | goto unknown; | |
9514 | ||
9515 | case 'g': | |
9516 | if (name[4] == 'e' && | |
9517 | name[5] == 't') | |
9518 | { /* semget */ | |
9519 | return -KEY_semget; | |
9520 | } | |
9521 | ||
9522 | goto unknown; | |
9523 | ||
9524 | default: | |
9525 | goto unknown; | |
9526 | } | |
9527 | ||
9528 | default: | |
9529 | goto unknown; | |
9530 | } | |
9531 | ||
9532 | case 'h': | |
9533 | if (name[2] == 'm') | |
9534 | { | |
9535 | switch (name[3]) | |
9536 | { | |
9537 | case 'c': | |
9538 | if (name[4] == 't' && | |
9539 | name[5] == 'l') | |
9540 | { /* shmctl */ | |
9541 | return -KEY_shmctl; | |
9542 | } | |
9543 | ||
9544 | goto unknown; | |
9545 | ||
9546 | case 'g': | |
9547 | if (name[4] == 'e' && | |
9548 | name[5] == 't') | |
9549 | { /* shmget */ | |
9550 | return -KEY_shmget; | |
9551 | } | |
9552 | ||
9553 | goto unknown; | |
9554 | ||
9555 | default: | |
9556 | goto unknown; | |
9557 | } | |
9558 | } | |
9559 | ||
9560 | goto unknown; | |
9561 | ||
9562 | case 'o': | |
9563 | if (name[2] == 'c' && | |
9564 | name[3] == 'k' && | |
9565 | name[4] == 'e' && | |
9566 | name[5] == 't') | |
9567 | { /* socket */ | |
9568 | return -KEY_socket; | |
9569 | } | |
9570 | ||
9571 | goto unknown; | |
9572 | ||
9573 | case 'p': | |
9574 | if (name[2] == 'l' && | |
9575 | name[3] == 'i' && | |
9576 | name[4] == 'c' && | |
9577 | name[5] == 'e') | |
9578 | { /* splice */ | |
9579 | return -KEY_splice; | |
9580 | } | |
9581 | ||
9582 | goto unknown; | |
9583 | ||
9584 | case 'u': | |
9585 | if (name[2] == 'b' && | |
9586 | name[3] == 's' && | |
9587 | name[4] == 't' && | |
9588 | name[5] == 'r') | |
9589 | { /* substr */ | |
9590 | return -KEY_substr; | |
9591 | } | |
9592 | ||
9593 | goto unknown; | |
9594 | ||
9595 | case 'y': | |
9596 | if (name[2] == 's' && | |
9597 | name[3] == 't' && | |
9598 | name[4] == 'e' && | |
9599 | name[5] == 'm') | |
9600 | { /* system */ | |
9601 | return -KEY_system; | |
9602 | } | |
9603 | ||
9604 | goto unknown; | |
9605 | ||
9606 | default: | |
9607 | goto unknown; | |
9608 | } | |
9609 | ||
9610 | case 'u': | |
9611 | if (name[1] == 'n') | |
9612 | { | |
9613 | switch (name[2]) | |
9614 | { | |
9615 | case 'l': | |
9616 | switch (name[3]) | |
9617 | { | |
9618 | case 'e': | |
9619 | if (name[4] == 's' && | |
9620 | name[5] == 's') | |
9621 | { /* unless */ | |
9622 | return KEY_unless; | |
9623 | } | |
9624 | ||
9625 | goto unknown; | |
9626 | ||
9627 | case 'i': | |
9628 | if (name[4] == 'n' && | |
9629 | name[5] == 'k') | |
9630 | { /* unlink */ | |
9631 | return -KEY_unlink; | |
9632 | } | |
9633 | ||
9634 | goto unknown; | |
9635 | ||
9636 | default: | |
9637 | goto unknown; | |
9638 | } | |
9639 | ||
9640 | case 'p': | |
9641 | if (name[3] == 'a' && | |
9642 | name[4] == 'c' && | |
9643 | name[5] == 'k') | |
9644 | { /* unpack */ | |
9645 | return -KEY_unpack; | |
9646 | } | |
9647 | ||
9648 | goto unknown; | |
9649 | ||
9650 | default: | |
9651 | goto unknown; | |
9652 | } | |
9653 | } | |
9654 | ||
9655 | goto unknown; | |
9656 | ||
9657 | case 'v': | |
9658 | if (name[1] == 'a' && | |
9659 | name[2] == 'l' && | |
9660 | name[3] == 'u' && | |
9661 | name[4] == 'e' && | |
9662 | name[5] == 's') | |
9663 | { /* values */ | |
9664 | return -KEY_values; | |
9665 | } | |
9666 | ||
9667 | goto unknown; | |
9668 | ||
9669 | default: | |
9670 | goto unknown; | |
e2e1dd5a | 9671 | } |
4c3bbe0f | 9672 | |
0d863452 | 9673 | case 7: /* 29 tokens of length 7 */ |
4c3bbe0f MHM |
9674 | switch (name[0]) |
9675 | { | |
9676 | case 'D': | |
9677 | if (name[1] == 'E' && | |
9678 | name[2] == 'S' && | |
9679 | name[3] == 'T' && | |
9680 | name[4] == 'R' && | |
9681 | name[5] == 'O' && | |
9682 | name[6] == 'Y') | |
9683 | { /* DESTROY */ | |
9684 | return KEY_DESTROY; | |
9685 | } | |
9686 | ||
9687 | goto unknown; | |
9688 | ||
9689 | case '_': | |
9690 | if (name[1] == '_' && | |
9691 | name[2] == 'E' && | |
9692 | name[3] == 'N' && | |
9693 | name[4] == 'D' && | |
9694 | name[5] == '_' && | |
9695 | name[6] == '_') | |
9696 | { /* __END__ */ | |
9697 | return KEY___END__; | |
9698 | } | |
9699 | ||
9700 | goto unknown; | |
9701 | ||
9702 | case 'b': | |
9703 | if (name[1] == 'i' && | |
9704 | name[2] == 'n' && | |
9705 | name[3] == 'm' && | |
9706 | name[4] == 'o' && | |
9707 | name[5] == 'd' && | |
9708 | name[6] == 'e') | |
9709 | { /* binmode */ | |
9710 | return -KEY_binmode; | |
9711 | } | |
9712 | ||
9713 | goto unknown; | |
9714 | ||
9715 | case 'c': | |
9716 | if (name[1] == 'o' && | |
9717 | name[2] == 'n' && | |
9718 | name[3] == 'n' && | |
9719 | name[4] == 'e' && | |
9720 | name[5] == 'c' && | |
9721 | name[6] == 't') | |
9722 | { /* connect */ | |
9723 | return -KEY_connect; | |
9724 | } | |
9725 | ||
9726 | goto unknown; | |
9727 | ||
9728 | case 'd': | |
9729 | switch (name[1]) | |
9730 | { | |
9731 | case 'b': | |
9732 | if (name[2] == 'm' && | |
9733 | name[3] == 'o' && | |
9734 | name[4] == 'p' && | |
9735 | name[5] == 'e' && | |
9736 | name[6] == 'n') | |
9737 | { /* dbmopen */ | |
9738 | return -KEY_dbmopen; | |
9739 | } | |
9740 | ||
9741 | goto unknown; | |
9742 | ||
9743 | case 'e': | |
0d863452 RH |
9744 | if (name[2] == 'f') |
9745 | { | |
9746 | switch (name[3]) | |
9747 | { | |
9748 | case 'a': | |
9749 | if (name[4] == 'u' && | |
9750 | name[5] == 'l' && | |
9751 | name[6] == 't') | |
9752 | { /* default */ | |
5458a98a | 9753 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_default : 0); |
0d863452 RH |
9754 | } |
9755 | ||
9756 | goto unknown; | |
9757 | ||
9758 | case 'i': | |
9759 | if (name[4] == 'n' && | |
952306ac RGS |
9760 | name[5] == 'e' && |
9761 | name[6] == 'd') | |
9762 | { /* defined */ | |
9763 | return KEY_defined; | |
9764 | } | |
4c3bbe0f | 9765 | |
952306ac | 9766 | goto unknown; |
4c3bbe0f | 9767 | |
952306ac RGS |
9768 | default: |
9769 | goto unknown; | |
9770 | } | |
0d863452 RH |
9771 | } |
9772 | ||
9773 | goto unknown; | |
9774 | ||
9775 | default: | |
9776 | goto unknown; | |
9777 | } | |
4c3bbe0f MHM |
9778 | |
9779 | case 'f': | |
9780 | if (name[1] == 'o' && | |
9781 | name[2] == 'r' && | |
9782 | name[3] == 'e' && | |
9783 | name[4] == 'a' && | |
9784 | name[5] == 'c' && | |
9785 | name[6] == 'h') | |
9786 | { /* foreach */ | |
9787 | return KEY_foreach; | |
9788 | } | |
9789 | ||
9790 | goto unknown; | |
9791 | ||
9792 | case 'g': | |
9793 | if (name[1] == 'e' && | |
9794 | name[2] == 't' && | |
9795 | name[3] == 'p') | |
9796 | { | |
9797 | switch (name[4]) | |
9798 | { | |
9799 | case 'g': | |
9800 | if (name[5] == 'r' && | |
9801 | name[6] == 'p') | |
9802 | { /* getpgrp */ | |
9803 | return -KEY_getpgrp; | |
9804 | } | |
9805 | ||
9806 | goto unknown; | |
9807 | ||
9808 | case 'p': | |
9809 | if (name[5] == 'i' && | |
9810 | name[6] == 'd') | |
9811 | { /* getppid */ | |
9812 | return -KEY_getppid; | |
9813 | } | |
9814 | ||
9815 | goto unknown; | |
9816 | ||
9817 | default: | |
9818 | goto unknown; | |
9819 | } | |
9820 | } | |
9821 | ||
9822 | goto unknown; | |
9823 | ||
9824 | case 'l': | |
9825 | if (name[1] == 'c' && | |
9826 | name[2] == 'f' && | |
9827 | name[3] == 'i' && | |
9828 | name[4] == 'r' && | |
9829 | name[5] == 's' && | |
9830 | name[6] == 't') | |
9831 | { /* lcfirst */ | |
9832 | return -KEY_lcfirst; | |
9833 | } | |
9834 | ||
9835 | goto unknown; | |
9836 | ||
9837 | case 'o': | |
9838 | if (name[1] == 'p' && | |
9839 | name[2] == 'e' && | |
9840 | name[3] == 'n' && | |
9841 | name[4] == 'd' && | |
9842 | name[5] == 'i' && | |
9843 | name[6] == 'r') | |
9844 | { /* opendir */ | |
9845 | return -KEY_opendir; | |
9846 | } | |
9847 | ||
9848 | goto unknown; | |
9849 | ||
9850 | case 'p': | |
9851 | if (name[1] == 'a' && | |
9852 | name[2] == 'c' && | |
9853 | name[3] == 'k' && | |
9854 | name[4] == 'a' && | |
9855 | name[5] == 'g' && | |
9856 | name[6] == 'e') | |
9857 | { /* package */ | |
9858 | return KEY_package; | |
9859 | } | |
9860 | ||
9861 | goto unknown; | |
9862 | ||
9863 | case 'r': | |
9864 | if (name[1] == 'e') | |
9865 | { | |
9866 | switch (name[2]) | |
9867 | { | |
9868 | case 'a': | |
9869 | if (name[3] == 'd' && | |
9870 | name[4] == 'd' && | |
9871 | name[5] == 'i' && | |
9872 | name[6] == 'r') | |
9873 | { /* readdir */ | |
9874 | return -KEY_readdir; | |
9875 | } | |
9876 | ||
9877 | goto unknown; | |
9878 | ||
9879 | case 'q': | |
9880 | if (name[3] == 'u' && | |
9881 | name[4] == 'i' && | |
9882 | name[5] == 'r' && | |
9883 | name[6] == 'e') | |
9884 | { /* require */ | |
9885 | return KEY_require; | |
9886 | } | |
9887 | ||
9888 | goto unknown; | |
9889 | ||
9890 | case 'v': | |
9891 | if (name[3] == 'e' && | |
9892 | name[4] == 'r' && | |
9893 | name[5] == 's' && | |
9894 | name[6] == 'e') | |
9895 | { /* reverse */ | |
9896 | return -KEY_reverse; | |
9897 | } | |
9898 | ||
9899 | goto unknown; | |
9900 | ||
9901 | default: | |
9902 | goto unknown; | |
9903 | } | |
9904 | } | |
9905 | ||
9906 | goto unknown; | |
9907 | ||
9908 | case 's': | |
9909 | switch (name[1]) | |
9910 | { | |
9911 | case 'e': | |
9912 | switch (name[2]) | |
9913 | { | |
9914 | case 'e': | |
9915 | if (name[3] == 'k' && | |
9916 | name[4] == 'd' && | |
9917 | name[5] == 'i' && | |
9918 | name[6] == 'r') | |
9919 | { /* seekdir */ | |
9920 | return -KEY_seekdir; | |
9921 | } | |
9922 | ||
9923 | goto unknown; | |
9924 | ||
9925 | case 't': | |
9926 | if (name[3] == 'p' && | |
9927 | name[4] == 'g' && | |
9928 | name[5] == 'r' && | |
9929 | name[6] == 'p') | |
9930 | { /* setpgrp */ | |
9931 | return -KEY_setpgrp; | |
9932 | } | |
9933 | ||
9934 | goto unknown; | |
9935 | ||
9936 | default: | |
9937 | goto unknown; | |
9938 | } | |
9939 | ||
9940 | case 'h': | |
9941 | if (name[2] == 'm' && | |
9942 | name[3] == 'r' && | |
9943 | name[4] == 'e' && | |
9944 | name[5] == 'a' && | |
9945 | name[6] == 'd') | |
9946 | { /* shmread */ | |
9947 | return -KEY_shmread; | |
9948 | } | |
9949 | ||
9950 | goto unknown; | |
9951 | ||
9952 | case 'p': | |
9953 | if (name[2] == 'r' && | |
9954 | name[3] == 'i' && | |
9955 | name[4] == 'n' && | |
9956 | name[5] == 't' && | |
9957 | name[6] == 'f') | |
9958 | { /* sprintf */ | |
9959 | return -KEY_sprintf; | |
9960 | } | |
9961 | ||
9962 | goto unknown; | |
9963 | ||
9964 | case 'y': | |
9965 | switch (name[2]) | |
9966 | { | |
9967 | case 'm': | |
9968 | if (name[3] == 'l' && | |
9969 | name[4] == 'i' && | |
9970 | name[5] == 'n' && | |
9971 | name[6] == 'k') | |
9972 | { /* symlink */ | |
9973 | return -KEY_symlink; | |
9974 | } | |
9975 | ||
9976 | goto unknown; | |
9977 | ||
9978 | case 's': | |
9979 | switch (name[3]) | |
9980 | { | |
9981 | case 'c': | |
9982 | if (name[4] == 'a' && | |
9983 | name[5] == 'l' && | |
9984 | name[6] == 'l') | |
9985 | { /* syscall */ | |
9986 | return -KEY_syscall; | |
9987 | } | |
9988 | ||
9989 | goto unknown; | |
9990 | ||
9991 | case 'o': | |
9992 | if (name[4] == 'p' && | |
9993 | name[5] == 'e' && | |
9994 | name[6] == 'n') | |
9995 | { /* sysopen */ | |
9996 | return -KEY_sysopen; | |
9997 | } | |
9998 | ||
9999 | goto unknown; | |
10000 | ||
10001 | case 'r': | |
10002 | if (name[4] == 'e' && | |
10003 | name[5] == 'a' && | |
10004 | name[6] == 'd') | |
10005 | { /* sysread */ | |
10006 | return -KEY_sysread; | |
10007 | } | |
10008 | ||
10009 | goto unknown; | |
10010 | ||
10011 | case 's': | |
10012 | if (name[4] == 'e' && | |
10013 | name[5] == 'e' && | |
10014 | name[6] == 'k') | |
10015 | { /* sysseek */ | |
10016 | return -KEY_sysseek; | |
10017 | } | |
10018 | ||
10019 | goto unknown; | |
10020 | ||
10021 | default: | |
10022 | goto unknown; | |
10023 | } | |
10024 | ||
10025 | default: | |
10026 | goto unknown; | |
10027 | } | |
10028 | ||
10029 | default: | |
10030 | goto unknown; | |
10031 | } | |
10032 | ||
10033 | case 't': | |
10034 | if (name[1] == 'e' && | |
10035 | name[2] == 'l' && | |
10036 | name[3] == 'l' && | |
10037 | name[4] == 'd' && | |
10038 | name[5] == 'i' && | |
10039 | name[6] == 'r') | |
10040 | { /* telldir */ | |
10041 | return -KEY_telldir; | |
10042 | } | |
10043 | ||
10044 | goto unknown; | |
10045 | ||
10046 | case 'u': | |
10047 | switch (name[1]) | |
10048 | { | |
10049 | case 'c': | |
10050 | if (name[2] == 'f' && | |
10051 | name[3] == 'i' && | |
10052 | name[4] == 'r' && | |
10053 | name[5] == 's' && | |
10054 | name[6] == 't') | |
10055 | { /* ucfirst */ | |
10056 | return -KEY_ucfirst; | |
10057 | } | |
10058 | ||
10059 | goto unknown; | |
10060 | ||
10061 | case 'n': | |
10062 | if (name[2] == 's' && | |
10063 | name[3] == 'h' && | |
10064 | name[4] == 'i' && | |
10065 | name[5] == 'f' && | |
10066 | name[6] == 't') | |
10067 | { /* unshift */ | |
10068 | return -KEY_unshift; | |
10069 | } | |
10070 | ||
10071 | goto unknown; | |
10072 | ||
10073 | default: | |
10074 | goto unknown; | |
10075 | } | |
10076 | ||
10077 | case 'w': | |
10078 | if (name[1] == 'a' && | |
10079 | name[2] == 'i' && | |
10080 | name[3] == 't' && | |
10081 | name[4] == 'p' && | |
10082 | name[5] == 'i' && | |
10083 | name[6] == 'd') | |
10084 | { /* waitpid */ | |
10085 | return -KEY_waitpid; | |
10086 | } | |
10087 | ||
10088 | goto unknown; | |
10089 | ||
10090 | default: | |
10091 | goto unknown; | |
10092 | } | |
10093 | ||
10094 | case 8: /* 26 tokens of length 8 */ | |
10095 | switch (name[0]) | |
10096 | { | |
10097 | case 'A': | |
10098 | if (name[1] == 'U' && | |
10099 | name[2] == 'T' && | |
10100 | name[3] == 'O' && | |
10101 | name[4] == 'L' && | |
10102 | name[5] == 'O' && | |
10103 | name[6] == 'A' && | |
10104 | name[7] == 'D') | |
10105 | { /* AUTOLOAD */ | |
10106 | return KEY_AUTOLOAD; | |
10107 | } | |
10108 | ||
10109 | goto unknown; | |
10110 | ||
10111 | case '_': | |
10112 | if (name[1] == '_') | |
10113 | { | |
10114 | switch (name[2]) | |
10115 | { | |
10116 | case 'D': | |
10117 | if (name[3] == 'A' && | |
10118 | name[4] == 'T' && | |
10119 | name[5] == 'A' && | |
10120 | name[6] == '_' && | |
10121 | name[7] == '_') | |
10122 | { /* __DATA__ */ | |
10123 | return KEY___DATA__; | |
10124 | } | |
10125 | ||
10126 | goto unknown; | |
10127 | ||
10128 | case 'F': | |
10129 | if (name[3] == 'I' && | |
10130 | name[4] == 'L' && | |
10131 | name[5] == 'E' && | |
10132 | name[6] == '_' && | |
10133 | name[7] == '_') | |
10134 | { /* __FILE__ */ | |
10135 | return -KEY___FILE__; | |
10136 | } | |
10137 | ||
10138 | goto unknown; | |
10139 | ||
10140 | case 'L': | |
10141 | if (name[3] == 'I' && | |
10142 | name[4] == 'N' && | |
10143 | name[5] == 'E' && | |
10144 | name[6] == '_' && | |
10145 | name[7] == '_') | |
10146 | { /* __LINE__ */ | |
10147 | return -KEY___LINE__; | |
10148 | } | |
10149 | ||
10150 | goto unknown; | |
10151 | ||
10152 | default: | |
10153 | goto unknown; | |
10154 | } | |
10155 | } | |
10156 | ||
10157 | goto unknown; | |
10158 | ||
10159 | case 'c': | |
10160 | switch (name[1]) | |
10161 | { | |
10162 | case 'l': | |
10163 | if (name[2] == 'o' && | |
10164 | name[3] == 's' && | |
10165 | name[4] == 'e' && | |
10166 | name[5] == 'd' && | |
10167 | name[6] == 'i' && | |
10168 | name[7] == 'r') | |
10169 | { /* closedir */ | |
10170 | return -KEY_closedir; | |
10171 | } | |
10172 | ||
10173 | goto unknown; | |
10174 | ||
10175 | case 'o': | |
10176 | if (name[2] == 'n' && | |
10177 | name[3] == 't' && | |
10178 | name[4] == 'i' && | |
10179 | name[5] == 'n' && | |
10180 | name[6] == 'u' && | |
10181 | name[7] == 'e') | |
10182 | { /* continue */ | |
10183 | return -KEY_continue; | |
10184 | } | |
10185 | ||
10186 | goto unknown; | |
10187 | ||
10188 | default: | |
10189 | goto unknown; | |
10190 | } | |
10191 | ||
10192 | case 'd': | |
10193 | if (name[1] == 'b' && | |
10194 | name[2] == 'm' && | |
10195 | name[3] == 'c' && | |
10196 | name[4] == 'l' && | |
10197 | name[5] == 'o' && | |
10198 | name[6] == 's' && | |
10199 | name[7] == 'e') | |
10200 | { /* dbmclose */ | |
10201 | return -KEY_dbmclose; | |
10202 | } | |
10203 | ||
10204 | goto unknown; | |
10205 | ||
10206 | case 'e': | |
10207 | if (name[1] == 'n' && | |
10208 | name[2] == 'd') | |
10209 | { | |
10210 | switch (name[3]) | |
10211 | { | |
10212 | case 'g': | |
10213 | if (name[4] == 'r' && | |
10214 | name[5] == 'e' && | |
10215 | name[6] == 'n' && | |
10216 | name[7] == 't') | |
10217 | { /* endgrent */ | |
10218 | return -KEY_endgrent; | |
10219 | } | |
10220 | ||
10221 | goto unknown; | |
10222 | ||
10223 | case 'p': | |
10224 | if (name[4] == 'w' && | |
10225 | name[5] == 'e' && | |
10226 | name[6] == 'n' && | |
10227 | name[7] == 't') | |
10228 | { /* endpwent */ | |
10229 | return -KEY_endpwent; | |
10230 | } | |
10231 | ||
10232 | goto unknown; | |
10233 | ||
10234 | default: | |
10235 | goto unknown; | |
10236 | } | |
10237 | } | |
10238 | ||
10239 | goto unknown; | |
10240 | ||
10241 | case 'f': | |
10242 | if (name[1] == 'o' && | |
10243 | name[2] == 'r' && | |
10244 | name[3] == 'm' && | |
10245 | name[4] == 'l' && | |
10246 | name[5] == 'i' && | |
10247 | name[6] == 'n' && | |
10248 | name[7] == 'e') | |
10249 | { /* formline */ | |
10250 | return -KEY_formline; | |
10251 | } | |
10252 | ||
10253 | goto unknown; | |
10254 | ||
10255 | case 'g': | |
10256 | if (name[1] == 'e' && | |
10257 | name[2] == 't') | |
10258 | { | |
10259 | switch (name[3]) | |
10260 | { | |
10261 | case 'g': | |
10262 | if (name[4] == 'r') | |
10263 | { | |
10264 | switch (name[5]) | |
10265 | { | |
10266 | case 'e': | |
10267 | if (name[6] == 'n' && | |
10268 | name[7] == 't') | |
10269 | { /* getgrent */ | |
10270 | return -KEY_getgrent; | |
10271 | } | |
10272 | ||
10273 | goto unknown; | |
10274 | ||
10275 | case 'g': | |
10276 | if (name[6] == 'i' && | |
10277 | name[7] == 'd') | |
10278 | { /* getgrgid */ | |
10279 | return -KEY_getgrgid; | |
10280 | } | |
10281 | ||
10282 | goto unknown; | |
10283 | ||
10284 | case 'n': | |
10285 | if (name[6] == 'a' && | |
10286 | name[7] == 'm') | |
10287 | { /* getgrnam */ | |
10288 | return -KEY_getgrnam; | |
10289 | } | |
10290 | ||
10291 | goto unknown; | |
10292 | ||
10293 | default: | |
10294 | goto unknown; | |
10295 | } | |
10296 | } | |
10297 | ||
10298 | goto unknown; | |
10299 | ||
10300 | case 'l': | |
10301 | if (name[4] == 'o' && | |
10302 | name[5] == 'g' && | |
10303 | name[6] == 'i' && | |
10304 | name[7] == 'n') | |
10305 | { /* getlogin */ | |
10306 | return -KEY_getlogin; | |
10307 | } | |
10308 | ||
10309 | goto unknown; | |
10310 | ||
10311 | case 'p': | |
10312 | if (name[4] == 'w') | |
10313 | { | |
10314 | switch (name[5]) | |
10315 | { | |
10316 | case 'e': | |
10317 | if (name[6] == 'n' && | |
10318 | name[7] == 't') | |
10319 | { /* getpwent */ | |
10320 | return -KEY_getpwent; | |
10321 | } | |
10322 | ||
10323 | goto unknown; | |
10324 | ||
10325 | case 'n': | |
10326 | if (name[6] == 'a' && | |
10327 | name[7] == 'm') | |
10328 | { /* getpwnam */ | |
10329 | return -KEY_getpwnam; | |
10330 | } | |
10331 | ||
10332 | goto unknown; | |
10333 | ||
10334 | case 'u': | |
10335 | if (name[6] == 'i' && | |
10336 | name[7] == 'd') | |
10337 | { /* getpwuid */ | |
10338 | return -KEY_getpwuid; | |
10339 | } | |
10340 | ||
10341 | goto unknown; | |
10342 | ||
10343 | default: | |
10344 | goto unknown; | |
10345 | } | |
10346 | } | |
10347 | ||
10348 | goto unknown; | |
10349 | ||
10350 | default: | |
10351 | goto unknown; | |
10352 | } | |
10353 | } | |
10354 | ||
10355 | goto unknown; | |
10356 | ||
10357 | case 'r': | |
10358 | if (name[1] == 'e' && | |
10359 | name[2] == 'a' && | |
10360 | name[3] == 'd') | |
10361 | { | |
10362 | switch (name[4]) | |
10363 | { | |
10364 | case 'l': | |
10365 | if (name[5] == 'i' && | |
10366 | name[6] == 'n') | |
10367 | { | |
10368 | switch (name[7]) | |
10369 | { | |
10370 | case 'e': | |
10371 | { /* readline */ | |
10372 | return -KEY_readline; | |
10373 | } | |
10374 | ||
4c3bbe0f MHM |
10375 | case 'k': |
10376 | { /* readlink */ | |
10377 | return -KEY_readlink; | |
10378 | } | |
10379 | ||
4c3bbe0f MHM |
10380 | default: |
10381 | goto unknown; | |
10382 | } | |
10383 | } | |
10384 | ||
10385 | goto unknown; | |
10386 | ||
10387 | case 'p': | |
10388 | if (name[5] == 'i' && | |
10389 | name[6] == 'p' && | |
10390 | name[7] == 'e') | |
10391 | { /* readpipe */ | |
10392 | return -KEY_readpipe; | |
10393 | } | |
10394 | ||
10395 | goto unknown; | |
10396 | ||
10397 | default: | |
10398 | goto unknown; | |
10399 | } | |
10400 | } | |
10401 | ||
10402 | goto unknown; | |
10403 | ||
10404 | case 's': | |
10405 | switch (name[1]) | |
10406 | { | |
10407 | case 'e': | |
10408 | if (name[2] == 't') | |
10409 | { | |
10410 | switch (name[3]) | |
10411 | { | |
10412 | case 'g': | |
10413 | if (name[4] == 'r' && | |
10414 | name[5] == 'e' && | |
10415 | name[6] == 'n' && | |
10416 | name[7] == 't') | |
10417 | { /* setgrent */ | |
10418 | return -KEY_setgrent; | |
10419 | } | |
10420 | ||
10421 | goto unknown; | |
10422 | ||
10423 | case 'p': | |
10424 | if (name[4] == 'w' && | |
10425 | name[5] == 'e' && | |
10426 | name[6] == 'n' && | |
10427 | name[7] == 't') | |
10428 | { /* setpwent */ | |
10429 | return -KEY_setpwent; | |
10430 | } | |
10431 | ||
10432 | goto unknown; | |
10433 | ||
10434 | default: | |
10435 | goto unknown; | |
10436 | } | |
10437 | } | |
10438 | ||
10439 | goto unknown; | |
10440 | ||
10441 | case 'h': | |
10442 | switch (name[2]) | |
10443 | { | |
10444 | case 'm': | |
10445 | if (name[3] == 'w' && | |
10446 | name[4] == 'r' && | |
10447 | name[5] == 'i' && | |
10448 | name[6] == 't' && | |
10449 | name[7] == 'e') | |
10450 | { /* shmwrite */ | |
10451 | return -KEY_shmwrite; | |
10452 | } | |
10453 | ||
10454 | goto unknown; | |
10455 | ||
10456 | case 'u': | |
10457 | if (name[3] == 't' && | |
10458 | name[4] == 'd' && | |
10459 | name[5] == 'o' && | |
10460 | name[6] == 'w' && | |
10461 | name[7] == 'n') | |
10462 | { /* shutdown */ | |
10463 | return -KEY_shutdown; | |
10464 | } | |
10465 | ||
10466 | goto unknown; | |
10467 | ||
10468 | default: | |
10469 | goto unknown; | |
10470 | } | |
10471 | ||
10472 | case 'y': | |
10473 | if (name[2] == 's' && | |
10474 | name[3] == 'w' && | |
10475 | name[4] == 'r' && | |
10476 | name[5] == 'i' && | |
10477 | name[6] == 't' && | |
10478 | name[7] == 'e') | |
10479 | { /* syswrite */ | |
10480 | return -KEY_syswrite; | |
10481 | } | |
10482 | ||
10483 | goto unknown; | |
10484 | ||
10485 | default: | |
10486 | goto unknown; | |
10487 | } | |
10488 | ||
10489 | case 't': | |
10490 | if (name[1] == 'r' && | |
10491 | name[2] == 'u' && | |
10492 | name[3] == 'n' && | |
10493 | name[4] == 'c' && | |
10494 | name[5] == 'a' && | |
10495 | name[6] == 't' && | |
10496 | name[7] == 'e') | |
10497 | { /* truncate */ | |
10498 | return -KEY_truncate; | |
10499 | } | |
10500 | ||
10501 | goto unknown; | |
10502 | ||
10503 | default: | |
10504 | goto unknown; | |
10505 | } | |
10506 | ||
3c10abe3 | 10507 | case 9: /* 9 tokens of length 9 */ |
4c3bbe0f MHM |
10508 | switch (name[0]) |
10509 | { | |
3c10abe3 AG |
10510 | case 'U': |
10511 | if (name[1] == 'N' && | |
10512 | name[2] == 'I' && | |
10513 | name[3] == 'T' && | |
10514 | name[4] == 'C' && | |
10515 | name[5] == 'H' && | |
10516 | name[6] == 'E' && | |
10517 | name[7] == 'C' && | |
10518 | name[8] == 'K') | |
10519 | { /* UNITCHECK */ | |
10520 | return KEY_UNITCHECK; | |
10521 | } | |
10522 | ||
10523 | goto unknown; | |
10524 | ||
4c3bbe0f MHM |
10525 | case 'e': |
10526 | if (name[1] == 'n' && | |
10527 | name[2] == 'd' && | |
10528 | name[3] == 'n' && | |
10529 | name[4] == 'e' && | |
10530 | name[5] == 't' && | |
10531 | name[6] == 'e' && | |
10532 | name[7] == 'n' && | |
10533 | name[8] == 't') | |
10534 | { /* endnetent */ | |
10535 | return -KEY_endnetent; | |
10536 | } | |
10537 | ||
10538 | goto unknown; | |
10539 | ||
10540 | case 'g': | |
10541 | if (name[1] == 'e' && | |
10542 | name[2] == 't' && | |
10543 | name[3] == 'n' && | |
10544 | name[4] == 'e' && | |
10545 | name[5] == 't' && | |
10546 | name[6] == 'e' && | |
10547 | name[7] == 'n' && | |
10548 | name[8] == 't') | |
10549 | { /* getnetent */ | |
10550 | return -KEY_getnetent; | |
10551 | } | |
10552 | ||
10553 | goto unknown; | |
10554 | ||
10555 | case 'l': | |
10556 | if (name[1] == 'o' && | |
10557 | name[2] == 'c' && | |
10558 | name[3] == 'a' && | |
10559 | name[4] == 'l' && | |
10560 | name[5] == 't' && | |
10561 | name[6] == 'i' && | |
10562 | name[7] == 'm' && | |
10563 | name[8] == 'e') | |
10564 | { /* localtime */ | |
10565 | return -KEY_localtime; | |
10566 | } | |
10567 | ||
10568 | goto unknown; | |
10569 | ||
10570 | case 'p': | |
10571 | if (name[1] == 'r' && | |
10572 | name[2] == 'o' && | |
10573 | name[3] == 't' && | |
10574 | name[4] == 'o' && | |
10575 | name[5] == 't' && | |
10576 | name[6] == 'y' && | |
10577 | name[7] == 'p' && | |
10578 | name[8] == 'e') | |
10579 | { /* prototype */ | |
10580 | return KEY_prototype; | |
10581 | } | |
10582 | ||
10583 | goto unknown; | |
10584 | ||
10585 | case 'q': | |
10586 | if (name[1] == 'u' && | |
10587 | name[2] == 'o' && | |
10588 | name[3] == 't' && | |
10589 | name[4] == 'e' && | |
10590 | name[5] == 'm' && | |
10591 | name[6] == 'e' && | |
10592 | name[7] == 't' && | |
10593 | name[8] == 'a') | |
10594 | { /* quotemeta */ | |
10595 | return -KEY_quotemeta; | |
10596 | } | |
10597 | ||
10598 | goto unknown; | |
10599 | ||
10600 | case 'r': | |
10601 | if (name[1] == 'e' && | |
10602 | name[2] == 'w' && | |
10603 | name[3] == 'i' && | |
10604 | name[4] == 'n' && | |
10605 | name[5] == 'd' && | |
10606 | name[6] == 'd' && | |
10607 | name[7] == 'i' && | |
10608 | name[8] == 'r') | |
10609 | { /* rewinddir */ | |
10610 | return -KEY_rewinddir; | |
10611 | } | |
10612 | ||
10613 | goto unknown; | |
10614 | ||
10615 | case 's': | |
10616 | if (name[1] == 'e' && | |
10617 | name[2] == 't' && | |
10618 | name[3] == 'n' && | |
10619 | name[4] == 'e' && | |
10620 | name[5] == 't' && | |
10621 | name[6] == 'e' && | |
10622 | name[7] == 'n' && | |
10623 | name[8] == 't') | |
10624 | { /* setnetent */ | |
10625 | return -KEY_setnetent; | |
10626 | } | |
10627 | ||
10628 | goto unknown; | |
10629 | ||
10630 | case 'w': | |
10631 | if (name[1] == 'a' && | |
10632 | name[2] == 'n' && | |
10633 | name[3] == 't' && | |
10634 | name[4] == 'a' && | |
10635 | name[5] == 'r' && | |
10636 | name[6] == 'r' && | |
10637 | name[7] == 'a' && | |
10638 | name[8] == 'y') | |
10639 | { /* wantarray */ | |
10640 | return -KEY_wantarray; | |
10641 | } | |
10642 | ||
10643 | goto unknown; | |
10644 | ||
10645 | default: | |
10646 | goto unknown; | |
10647 | } | |
10648 | ||
10649 | case 10: /* 9 tokens of length 10 */ | |
10650 | switch (name[0]) | |
10651 | { | |
10652 | case 'e': | |
10653 | if (name[1] == 'n' && | |
10654 | name[2] == 'd') | |
10655 | { | |
10656 | switch (name[3]) | |
10657 | { | |
10658 | case 'h': | |
10659 | if (name[4] == 'o' && | |
10660 | name[5] == 's' && | |
10661 | name[6] == 't' && | |
10662 | name[7] == 'e' && | |
10663 | name[8] == 'n' && | |
10664 | name[9] == 't') | |
10665 | { /* endhostent */ | |
10666 | return -KEY_endhostent; | |
10667 | } | |
10668 | ||
10669 | goto unknown; | |
10670 | ||
10671 | case 's': | |
10672 | if (name[4] == 'e' && | |
10673 | name[5] == 'r' && | |
10674 | name[6] == 'v' && | |
10675 | name[7] == 'e' && | |
10676 | name[8] == 'n' && | |
10677 | name[9] == 't') | |
10678 | { /* endservent */ | |
10679 | return -KEY_endservent; | |
10680 | } | |
10681 | ||
10682 | goto unknown; | |
10683 | ||
10684 | default: | |
10685 | goto unknown; | |
10686 | } | |
10687 | } | |
10688 | ||
10689 | goto unknown; | |
10690 | ||
10691 | case 'g': | |
10692 | if (name[1] == 'e' && | |
10693 | name[2] == 't') | |
10694 | { | |
10695 | switch (name[3]) | |
10696 | { | |
10697 | case 'h': | |
10698 | if (name[4] == 'o' && | |
10699 | name[5] == 's' && | |
10700 | name[6] == 't' && | |
10701 | name[7] == 'e' && | |
10702 | name[8] == 'n' && | |
10703 | name[9] == 't') | |
10704 | { /* gethostent */ | |
10705 | return -KEY_gethostent; | |
10706 | } | |
10707 | ||
10708 | goto unknown; | |
10709 | ||
10710 | case 's': | |
10711 | switch (name[4]) | |
10712 | { | |
10713 | case 'e': | |
10714 | if (name[5] == 'r' && | |
10715 | name[6] == 'v' && | |
10716 | name[7] == 'e' && | |
10717 | name[8] == 'n' && | |
10718 | name[9] == 't') | |
10719 | { /* getservent */ | |
10720 | return -KEY_getservent; | |
10721 | } | |
10722 | ||
10723 | goto unknown; | |
10724 | ||
10725 | case 'o': | |
10726 | if (name[5] == 'c' && | |
10727 | name[6] == 'k' && | |
10728 | name[7] == 'o' && | |
10729 | name[8] == 'p' && | |
10730 | name[9] == 't') | |
10731 | { /* getsockopt */ | |
10732 | return -KEY_getsockopt; | |
10733 | } | |
10734 | ||
10735 | goto unknown; | |
10736 | ||
10737 | default: | |
10738 | goto unknown; | |
10739 | } | |
10740 | ||
10741 | default: | |
10742 | goto unknown; | |
10743 | } | |
10744 | } | |
10745 | ||
10746 | goto unknown; | |
10747 | ||
10748 | case 's': | |
10749 | switch (name[1]) | |
10750 | { | |
10751 | case 'e': | |
10752 | if (name[2] == 't') | |
10753 | { | |
10754 | switch (name[3]) | |
10755 | { | |
10756 | case 'h': | |
10757 | if (name[4] == 'o' && | |
10758 | name[5] == 's' && | |
10759 | name[6] == 't' && | |
10760 | name[7] == 'e' && | |
10761 | name[8] == 'n' && | |
10762 | name[9] == 't') | |
10763 | { /* sethostent */ | |
10764 | return -KEY_sethostent; | |
10765 | } | |
10766 | ||
10767 | goto unknown; | |
10768 | ||
10769 | case 's': | |
10770 | switch (name[4]) | |
10771 | { | |
10772 | case 'e': | |
10773 | if (name[5] == 'r' && | |
10774 | name[6] == 'v' && | |
10775 | name[7] == 'e' && | |
10776 | name[8] == 'n' && | |
10777 | name[9] == 't') | |
10778 | { /* setservent */ | |
10779 | return -KEY_setservent; | |
10780 | } | |
10781 | ||
10782 | goto unknown; | |
10783 | ||
10784 | case 'o': | |
10785 | if (name[5] == 'c' && | |
10786 | name[6] == 'k' && | |
10787 | name[7] == 'o' && | |
10788 | name[8] == 'p' && | |
10789 | name[9] == 't') | |
10790 | { /* setsockopt */ | |
10791 | return -KEY_setsockopt; | |
10792 | } | |
10793 | ||
10794 | goto unknown; | |
10795 | ||
10796 | default: | |
10797 | goto unknown; | |
10798 | } | |
10799 | ||
10800 | default: | |
10801 | goto unknown; | |
10802 | } | |
10803 | } | |
10804 | ||
10805 | goto unknown; | |
10806 | ||
10807 | case 'o': | |
10808 | if (name[2] == 'c' && | |
10809 | name[3] == 'k' && | |
10810 | name[4] == 'e' && | |
10811 | name[5] == 't' && | |
10812 | name[6] == 'p' && | |
10813 | name[7] == 'a' && | |
10814 | name[8] == 'i' && | |
10815 | name[9] == 'r') | |
10816 | { /* socketpair */ | |
10817 | return -KEY_socketpair; | |
10818 | } | |
10819 | ||
10820 | goto unknown; | |
10821 | ||
10822 | default: | |
10823 | goto unknown; | |
10824 | } | |
10825 | ||
10826 | default: | |
10827 | goto unknown; | |
e2e1dd5a | 10828 | } |
4c3bbe0f MHM |
10829 | |
10830 | case 11: /* 8 tokens of length 11 */ | |
10831 | switch (name[0]) | |
10832 | { | |
10833 | case '_': | |
10834 | if (name[1] == '_' && | |
10835 | name[2] == 'P' && | |
10836 | name[3] == 'A' && | |
10837 | name[4] == 'C' && | |
10838 | name[5] == 'K' && | |
10839 | name[6] == 'A' && | |
10840 | name[7] == 'G' && | |
10841 | name[8] == 'E' && | |
10842 | name[9] == '_' && | |
10843 | name[10] == '_') | |
10844 | { /* __PACKAGE__ */ | |
10845 | return -KEY___PACKAGE__; | |
10846 | } | |
10847 | ||
10848 | goto unknown; | |
10849 | ||
10850 | case 'e': | |
10851 | if (name[1] == 'n' && | |
10852 | name[2] == 'd' && | |
10853 | name[3] == 'p' && | |
10854 | name[4] == 'r' && | |
10855 | name[5] == 'o' && | |
10856 | name[6] == 't' && | |
10857 | name[7] == 'o' && | |
10858 | name[8] == 'e' && | |
10859 | name[9] == 'n' && | |
10860 | name[10] == 't') | |
10861 | { /* endprotoent */ | |
10862 | return -KEY_endprotoent; | |
10863 | } | |
10864 | ||
10865 | goto unknown; | |
10866 | ||
10867 | case 'g': | |
10868 | if (name[1] == 'e' && | |
10869 | name[2] == 't') | |
10870 | { | |
10871 | switch (name[3]) | |
10872 | { | |
10873 | case 'p': | |
10874 | switch (name[4]) | |
10875 | { | |
10876 | case 'e': | |
10877 | if (name[5] == 'e' && | |
10878 | name[6] == 'r' && | |
10879 | name[7] == 'n' && | |
10880 | name[8] == 'a' && | |
10881 | name[9] == 'm' && | |
10882 | name[10] == 'e') | |
10883 | { /* getpeername */ | |
10884 | return -KEY_getpeername; | |
10885 | } | |
10886 | ||
10887 | goto unknown; | |
10888 | ||
10889 | case 'r': | |
10890 | switch (name[5]) | |
10891 | { | |
10892 | case 'i': | |
10893 | if (name[6] == 'o' && | |
10894 | name[7] == 'r' && | |
10895 | name[8] == 'i' && | |
10896 | name[9] == 't' && | |
10897 | name[10] == 'y') | |
10898 | { /* getpriority */ | |
10899 | return -KEY_getpriority; | |
10900 | } | |
10901 | ||
10902 | goto unknown; | |
10903 | ||
10904 | case 'o': | |
10905 | if (name[6] == 't' && | |
10906 | name[7] == 'o' && | |
10907 | name[8] == 'e' && | |
10908 | name[9] == 'n' && | |
10909 | name[10] == 't') | |
10910 | { /* getprotoent */ | |
10911 | return -KEY_getprotoent; | |
10912 | } | |
10913 | ||
10914 | goto unknown; | |
10915 | ||
10916 | default: | |
10917 | goto unknown; | |
10918 | } | |
10919 | ||
10920 | default: | |
10921 | goto unknown; | |
10922 | } | |
10923 | ||
10924 | case 's': | |
10925 | if (name[4] == 'o' && | |
10926 | name[5] == 'c' && | |
10927 | name[6] == 'k' && | |
10928 | name[7] == 'n' && | |
10929 | name[8] == 'a' && | |
10930 | name[9] == 'm' && | |
10931 | name[10] == 'e') | |
10932 | { /* getsockname */ | |
10933 | return -KEY_getsockname; | |
10934 | } | |
10935 | ||
10936 | goto unknown; | |
10937 | ||
10938 | default: | |
10939 | goto unknown; | |
10940 | } | |
10941 | } | |
10942 | ||
10943 | goto unknown; | |
10944 | ||
10945 | case 's': | |
10946 | if (name[1] == 'e' && | |
10947 | name[2] == 't' && | |
10948 | name[3] == 'p' && | |
10949 | name[4] == 'r') | |
10950 | { | |
10951 | switch (name[5]) | |
10952 | { | |
10953 | case 'i': | |
10954 | if (name[6] == 'o' && | |
10955 | name[7] == 'r' && | |
10956 | name[8] == 'i' && | |
10957 | name[9] == 't' && | |
10958 | name[10] == 'y') | |
10959 | { /* setpriority */ | |
10960 | return -KEY_setpriority; | |
10961 | } | |
10962 | ||
10963 | goto unknown; | |
10964 | ||
10965 | case 'o': | |
10966 | if (name[6] == 't' && | |
10967 | name[7] == 'o' && | |
10968 | name[8] == 'e' && | |
10969 | name[9] == 'n' && | |
10970 | name[10] == 't') | |
10971 | { /* setprotoent */ | |
10972 | return -KEY_setprotoent; | |
10973 | } | |
10974 | ||
10975 | goto unknown; | |
10976 | ||
10977 | default: | |
10978 | goto unknown; | |
10979 | } | |
10980 | } | |
10981 | ||
10982 | goto unknown; | |
10983 | ||
10984 | default: | |
10985 | goto unknown; | |
e2e1dd5a | 10986 | } |
4c3bbe0f MHM |
10987 | |
10988 | case 12: /* 2 tokens of length 12 */ | |
10989 | if (name[0] == 'g' && | |
10990 | name[1] == 'e' && | |
10991 | name[2] == 't' && | |
10992 | name[3] == 'n' && | |
10993 | name[4] == 'e' && | |
10994 | name[5] == 't' && | |
10995 | name[6] == 'b' && | |
10996 | name[7] == 'y') | |
10997 | { | |
10998 | switch (name[8]) | |
10999 | { | |
11000 | case 'a': | |
11001 | if (name[9] == 'd' && | |
11002 | name[10] == 'd' && | |
11003 | name[11] == 'r') | |
11004 | { /* getnetbyaddr */ | |
11005 | return -KEY_getnetbyaddr; | |
11006 | } | |
11007 | ||
11008 | goto unknown; | |
11009 | ||
11010 | case 'n': | |
11011 | if (name[9] == 'a' && | |
11012 | name[10] == 'm' && | |
11013 | name[11] == 'e') | |
11014 | { /* getnetbyname */ | |
11015 | return -KEY_getnetbyname; | |
11016 | } | |
11017 | ||
11018 | goto unknown; | |
11019 | ||
11020 | default: | |
11021 | goto unknown; | |
11022 | } | |
e2e1dd5a | 11023 | } |
4c3bbe0f MHM |
11024 | |
11025 | goto unknown; | |
11026 | ||
11027 | case 13: /* 4 tokens of length 13 */ | |
11028 | if (name[0] == 'g' && | |
11029 | name[1] == 'e' && | |
11030 | name[2] == 't') | |
11031 | { | |
11032 | switch (name[3]) | |
11033 | { | |
11034 | case 'h': | |
11035 | if (name[4] == 'o' && | |
11036 | name[5] == 's' && | |
11037 | name[6] == 't' && | |
11038 | name[7] == 'b' && | |
11039 | name[8] == 'y') | |
11040 | { | |
11041 | switch (name[9]) | |
11042 | { | |
11043 | case 'a': | |
11044 | if (name[10] == 'd' && | |
11045 | name[11] == 'd' && | |
11046 | name[12] == 'r') | |
11047 | { /* gethostbyaddr */ | |
11048 | return -KEY_gethostbyaddr; | |
11049 | } | |
11050 | ||
11051 | goto unknown; | |
11052 | ||
11053 | case 'n': | |
11054 | if (name[10] == 'a' && | |
11055 | name[11] == 'm' && | |
11056 | name[12] == 'e') | |
11057 | { /* gethostbyname */ | |
11058 | return -KEY_gethostbyname; | |
11059 | } | |
11060 | ||
11061 | goto unknown; | |
11062 | ||
11063 | default: | |
11064 | goto unknown; | |
11065 | } | |
11066 | } | |
11067 | ||
11068 | goto unknown; | |
11069 | ||
11070 | case 's': | |
11071 | if (name[4] == 'e' && | |
11072 | name[5] == 'r' && | |
11073 | name[6] == 'v' && | |
11074 | name[7] == 'b' && | |
11075 | name[8] == 'y') | |
11076 | { | |
11077 | switch (name[9]) | |
11078 | { | |
11079 | case 'n': | |
11080 | if (name[10] == 'a' && | |
11081 | name[11] == 'm' && | |
11082 | name[12] == 'e') | |
11083 | { /* getservbyname */ | |
11084 | return -KEY_getservbyname; | |
11085 | } | |
11086 | ||
11087 | goto unknown; | |
11088 | ||
11089 | case 'p': | |
11090 | if (name[10] == 'o' && | |
11091 | name[11] == 'r' && | |
11092 | name[12] == 't') | |
11093 | { /* getservbyport */ | |
11094 | return -KEY_getservbyport; | |
11095 | } | |
11096 | ||
11097 | goto unknown; | |
11098 | ||
11099 | default: | |
11100 | goto unknown; | |
11101 | } | |
11102 | } | |
11103 | ||
11104 | goto unknown; | |
11105 | ||
11106 | default: | |
11107 | goto unknown; | |
11108 | } | |
e2e1dd5a | 11109 | } |
4c3bbe0f MHM |
11110 | |
11111 | goto unknown; | |
11112 | ||
11113 | case 14: /* 1 tokens of length 14 */ | |
11114 | if (name[0] == 'g' && | |
11115 | name[1] == 'e' && | |
11116 | name[2] == 't' && | |
11117 | name[3] == 'p' && | |
11118 | name[4] == 'r' && | |
11119 | name[5] == 'o' && | |
11120 | name[6] == 't' && | |
11121 | name[7] == 'o' && | |
11122 | name[8] == 'b' && | |
11123 | name[9] == 'y' && | |
11124 | name[10] == 'n' && | |
11125 | name[11] == 'a' && | |
11126 | name[12] == 'm' && | |
11127 | name[13] == 'e') | |
11128 | { /* getprotobyname */ | |
11129 | return -KEY_getprotobyname; | |
11130 | } | |
11131 | ||
11132 | goto unknown; | |
11133 | ||
11134 | case 16: /* 1 tokens of length 16 */ | |
11135 | if (name[0] == 'g' && | |
11136 | name[1] == 'e' && | |
11137 | name[2] == 't' && | |
11138 | name[3] == 'p' && | |
11139 | name[4] == 'r' && | |
11140 | name[5] == 'o' && | |
11141 | name[6] == 't' && | |
11142 | name[7] == 'o' && | |
11143 | name[8] == 'b' && | |
11144 | name[9] == 'y' && | |
11145 | name[10] == 'n' && | |
11146 | name[11] == 'u' && | |
11147 | name[12] == 'm' && | |
11148 | name[13] == 'b' && | |
11149 | name[14] == 'e' && | |
11150 | name[15] == 'r') | |
11151 | { /* getprotobynumber */ | |
11152 | return -KEY_getprotobynumber; | |
11153 | } | |
11154 | ||
11155 | goto unknown; | |
11156 | ||
11157 | default: | |
11158 | goto unknown; | |
e2e1dd5a | 11159 | } |
4c3bbe0f MHM |
11160 | |
11161 | unknown: | |
e2e1dd5a | 11162 | return 0; |
a687059c LW |
11163 | } |
11164 | ||
76e3520e | 11165 | STATIC void |
c94115d8 | 11166 | S_checkcomma(pTHX_ const char *s, const char *name, const char *what) |
a687059c | 11167 | { |
97aff369 | 11168 | dVAR; |
2f3197b3 | 11169 | |
7918f24d NC |
11170 | PERL_ARGS_ASSERT_CHECKCOMMA; |
11171 | ||
d008e5eb | 11172 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
11173 | if (ckWARN(WARN_SYNTAX)) { |
11174 | int level = 1; | |
26ff0806 | 11175 | const char *w; |
d008e5eb GS |
11176 | for (w = s+2; *w && level; w++) { |
11177 | if (*w == '(') | |
11178 | ++level; | |
11179 | else if (*w == ')') | |
11180 | --level; | |
11181 | } | |
888fea98 NC |
11182 | while (isSPACE(*w)) |
11183 | ++w; | |
b1439985 RGS |
11184 | /* the list of chars below is for end of statements or |
11185 | * block / parens, boolean operators (&&, ||, //) and branch | |
11186 | * constructs (or, and, if, until, unless, while, err, for). | |
11187 | * Not a very solid hack... */ | |
11188 | if (!*w || !strchr(";&/|})]oaiuwef!=", *w)) | |
9014280d | 11189 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 11190 | "%s (...) interpreted as function",name); |
d008e5eb | 11191 | } |
2f3197b3 | 11192 | } |
3280af22 | 11193 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 11194 | s++; |
a687059c LW |
11195 | if (*s == '(') |
11196 | s++; | |
3280af22 | 11197 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 11198 | s++; |
7e2040f0 | 11199 | if (isIDFIRST_lazy_if(s,UTF)) { |
26ff0806 | 11200 | const char * const w = s++; |
7e2040f0 | 11201 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 11202 | s++; |
3280af22 | 11203 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 11204 | s++; |
e929a76b | 11205 | if (*s == ',') { |
c94115d8 | 11206 | GV* gv; |
5458a98a | 11207 | if (keyword(w, s - w, 0)) |
e929a76b | 11208 | return; |
c94115d8 NC |
11209 | |
11210 | gv = gv_fetchpvn_flags(w, s - w, 0, SVt_PVCV); | |
11211 | if (gv && GvCVu(gv)) | |
abbb3198 | 11212 | return; |
cea2e8a9 | 11213 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
11214 | } |
11215 | } | |
11216 | } | |
11217 | ||
423cee85 JH |
11218 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
11219 | Best used as sv=new_constant(..., sv, ...). | |
11220 | If s, pv are NULL, calls subroutine with one argument, | |
11221 | and type is used with error messages only. */ | |
11222 | ||
b3ac6de7 | 11223 | STATIC SV * |
eb0d8d16 NC |
11224 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, STRLEN keylen, |
11225 | SV *sv, SV *pv, const char *type, STRLEN typelen) | |
b3ac6de7 | 11226 | { |
27da23d5 | 11227 | dVAR; dSP; |
890ce7af | 11228 | HV * const table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 11229 | SV *res; |
b3ac6de7 IZ |
11230 | SV **cvp; |
11231 | SV *cv, *typesv; | |
89e33a05 | 11232 | const char *why1 = "", *why2 = "", *why3 = ""; |
4e553d73 | 11233 | |
7918f24d NC |
11234 | PERL_ARGS_ASSERT_NEW_CONSTANT; |
11235 | ||
f0af216f | 11236 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
11237 | SV *msg; |
11238 | ||
10edeb5d JH |
11239 | why2 = (const char *) |
11240 | (strEQ(key,"charnames") | |
11241 | ? "(possibly a missing \"use charnames ...\")" | |
11242 | : ""); | |
4e553d73 | 11243 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
11244 | (type ? type: "undef"), why2); |
11245 | ||
11246 | /* This is convoluted and evil ("goto considered harmful") | |
11247 | * but I do not understand the intricacies of all the different | |
11248 | * failure modes of %^H in here. The goal here is to make | |
11249 | * the most probable error message user-friendly. --jhi */ | |
11250 | ||
11251 | goto msgdone; | |
11252 | ||
423cee85 | 11253 | report: |
4e553d73 | 11254 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 11255 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 11256 | msgdone: |
95a20fc0 | 11257 | yyerror(SvPVX_const(msg)); |
423cee85 JH |
11258 | SvREFCNT_dec(msg); |
11259 | return sv; | |
11260 | } | |
eb0d8d16 | 11261 | cvp = hv_fetch(table, key, keylen, FALSE); |
b3ac6de7 | 11262 | if (!cvp || !SvOK(*cvp)) { |
423cee85 JH |
11263 | why1 = "$^H{"; |
11264 | why2 = key; | |
f0af216f | 11265 | why3 = "} is not defined"; |
423cee85 | 11266 | goto report; |
b3ac6de7 IZ |
11267 | } |
11268 | sv_2mortal(sv); /* Parent created it permanently */ | |
11269 | cv = *cvp; | |
423cee85 | 11270 | if (!pv && s) |
59cd0e26 | 11271 | pv = newSVpvn_flags(s, len, SVs_TEMP); |
423cee85 | 11272 | if (type && pv) |
59cd0e26 | 11273 | typesv = newSVpvn_flags(type, typelen, SVs_TEMP); |
b3ac6de7 | 11274 | else |
423cee85 | 11275 | typesv = &PL_sv_undef; |
4e553d73 | 11276 | |
e788e7d3 | 11277 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
11278 | ENTER ; |
11279 | SAVETMPS; | |
4e553d73 | 11280 | |
423cee85 | 11281 | PUSHMARK(SP) ; |
a5845cb7 | 11282 | EXTEND(sp, 3); |
423cee85 JH |
11283 | if (pv) |
11284 | PUSHs(pv); | |
b3ac6de7 | 11285 | PUSHs(sv); |
423cee85 JH |
11286 | if (pv) |
11287 | PUSHs(typesv); | |
b3ac6de7 | 11288 | PUTBACK; |
423cee85 | 11289 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 11290 | |
423cee85 | 11291 | SPAGAIN ; |
4e553d73 | 11292 | |
423cee85 | 11293 | /* Check the eval first */ |
9b0e499b | 11294 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
396482e1 | 11295 | sv_catpvs(ERRSV, "Propagated"); |
8b6b16e7 | 11296 | yyerror(SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */ |
e1f15930 | 11297 | (void)POPs; |
b37c2d43 | 11298 | res = SvREFCNT_inc_simple(sv); |
423cee85 JH |
11299 | } |
11300 | else { | |
11301 | res = POPs; | |
b37c2d43 | 11302 | SvREFCNT_inc_simple_void(res); |
423cee85 | 11303 | } |
4e553d73 | 11304 | |
423cee85 JH |
11305 | PUTBACK ; |
11306 | FREETMPS ; | |
11307 | LEAVE ; | |
b3ac6de7 | 11308 | POPSTACK; |
4e553d73 | 11309 | |
b3ac6de7 | 11310 | if (!SvOK(res)) { |
423cee85 JH |
11311 | why1 = "Call to &{$^H{"; |
11312 | why2 = key; | |
f0af216f | 11313 | why3 = "}} did not return a defined value"; |
423cee85 JH |
11314 | sv = res; |
11315 | goto report; | |
9b0e499b | 11316 | } |
423cee85 | 11317 | |
9b0e499b | 11318 | return res; |
b3ac6de7 | 11319 | } |
4e553d73 | 11320 | |
d0a148a6 NC |
11321 | /* Returns a NUL terminated string, with the length of the string written to |
11322 | *slp | |
11323 | */ | |
76e3520e | 11324 | STATIC char * |
cea2e8a9 | 11325 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 | 11326 | { |
97aff369 | 11327 | dVAR; |
463ee0b2 | 11328 | register char *d = dest; |
890ce7af | 11329 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
7918f24d NC |
11330 | |
11331 | PERL_ARGS_ASSERT_SCAN_WORD; | |
11332 | ||
463ee0b2 | 11333 | for (;;) { |
8903cb82 | 11334 | if (d >= e) |
cea2e8a9 | 11335 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 11336 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 11337 | *d++ = *s++; |
c35e046a | 11338 | else if (allow_package && (*s == '\'') && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
11339 | *d++ = ':'; |
11340 | *d++ = ':'; | |
11341 | s++; | |
11342 | } | |
c35e046a | 11343 | else if (allow_package && (s[0] == ':') && (s[1] == ':') && (s[2] != '$')) { |
463ee0b2 LW |
11344 | *d++ = *s++; |
11345 | *d++ = *s++; | |
11346 | } | |
fd400ab9 | 11347 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 11348 | char *t = s + UTF8SKIP(s); |
c35e046a | 11349 | size_t len; |
fd400ab9 | 11350 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 | 11351 | t += UTF8SKIP(t); |
c35e046a AL |
11352 | len = t - s; |
11353 | if (d + len > e) | |
cea2e8a9 | 11354 | Perl_croak(aTHX_ ident_too_long); |
c35e046a AL |
11355 | Copy(s, d, len, char); |
11356 | d += len; | |
a0ed51b3 LW |
11357 | s = t; |
11358 | } | |
463ee0b2 LW |
11359 | else { |
11360 | *d = '\0'; | |
11361 | *slp = d - dest; | |
11362 | return s; | |
e929a76b | 11363 | } |
378cc40b LW |
11364 | } |
11365 | } | |
11366 | ||
76e3520e | 11367 | STATIC char * |
f54cb97a | 11368 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b | 11369 | { |
97aff369 | 11370 | dVAR; |
6136c704 | 11371 | char *bracket = NULL; |
748a9306 | 11372 | char funny = *s++; |
6136c704 | 11373 | register char *d = dest; |
0b3da58d | 11374 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
378cc40b | 11375 | |
7918f24d NC |
11376 | PERL_ARGS_ASSERT_SCAN_IDENT; |
11377 | ||
a0d0e21e | 11378 | if (isSPACE(*s)) |
29595ff2 | 11379 | s = PEEKSPACE(s); |
de3bb511 | 11380 | if (isDIGIT(*s)) { |
8903cb82 | 11381 | while (isDIGIT(*s)) { |
11382 | if (d >= e) | |
cea2e8a9 | 11383 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 11384 | *d++ = *s++; |
8903cb82 | 11385 | } |
378cc40b LW |
11386 | } |
11387 | else { | |
463ee0b2 | 11388 | for (;;) { |
8903cb82 | 11389 | if (d >= e) |
cea2e8a9 | 11390 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 11391 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 11392 | *d++ = *s++; |
7e2040f0 | 11393 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
11394 | *d++ = ':'; |
11395 | *d++ = ':'; | |
11396 | s++; | |
11397 | } | |
a0d0e21e | 11398 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
11399 | *d++ = *s++; |
11400 | *d++ = *s++; | |
11401 | } | |
fd400ab9 | 11402 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 11403 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 11404 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
11405 | t += UTF8SKIP(t); |
11406 | if (d + (t - s) > e) | |
cea2e8a9 | 11407 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
11408 | Copy(s, d, t - s, char); |
11409 | d += t - s; | |
11410 | s = t; | |
11411 | } | |
463ee0b2 LW |
11412 | else |
11413 | break; | |
11414 | } | |
378cc40b LW |
11415 | } |
11416 | *d = '\0'; | |
11417 | d = dest; | |
79072805 | 11418 | if (*d) { |
3280af22 NIS |
11419 | if (PL_lex_state != LEX_NORMAL) |
11420 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 11421 | return s; |
378cc40b | 11422 | } |
748a9306 | 11423 | if (*s == '$' && s[1] && |
3792a11b | 11424 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 11425 | { |
4810e5ec | 11426 | return s; |
5cd24f17 | 11427 | } |
79072805 LW |
11428 | if (*s == '{') { |
11429 | bracket = s; | |
11430 | s++; | |
11431 | } | |
11432 | else if (ck_uni) | |
11433 | check_uni(); | |
93a17b20 | 11434 | if (s < send) |
79072805 LW |
11435 | *d = *s++; |
11436 | d[1] = '\0'; | |
2b92dfce | 11437 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 11438 | *d = toCTRL(*s); |
11439 | s++; | |
de3bb511 | 11440 | } |
79072805 | 11441 | if (bracket) { |
748a9306 | 11442 | if (isSPACE(s[-1])) { |
fa83b5b6 | 11443 | while (s < send) { |
f54cb97a | 11444 | const char ch = *s++; |
bf4acbe4 | 11445 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 11446 | *d = ch; |
11447 | break; | |
11448 | } | |
11449 | } | |
748a9306 | 11450 | } |
7e2040f0 | 11451 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 11452 | d++; |
a0ed51b3 | 11453 | if (UTF) { |
6136c704 AL |
11454 | char *end = s; |
11455 | while ((end < send && isALNUM_lazy_if(end,UTF)) || *end == ':') { | |
11456 | end += UTF8SKIP(end); | |
11457 | while (end < send && UTF8_IS_CONTINUED(*end) && is_utf8_mark((U8*)end)) | |
11458 | end += UTF8SKIP(end); | |
a0ed51b3 | 11459 | } |
6136c704 AL |
11460 | Copy(s, d, end - s, char); |
11461 | d += end - s; | |
11462 | s = end; | |
a0ed51b3 LW |
11463 | } |
11464 | else { | |
2b92dfce | 11465 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 11466 | *d++ = *s++; |
2b92dfce | 11467 | if (d >= e) |
cea2e8a9 | 11468 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 11469 | } |
79072805 | 11470 | *d = '\0'; |
c35e046a AL |
11471 | while (s < send && SPACE_OR_TAB(*s)) |
11472 | s++; | |
ff68c719 | 11473 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
5458a98a | 11474 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest, 0)) { |
10edeb5d JH |
11475 | const char * const brack = |
11476 | (const char *) | |
11477 | ((*s == '[') ? "[...]" : "{...}"); | |
9014280d | 11478 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 11479 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
11480 | funny, dest, brack, funny, dest, brack); |
11481 | } | |
79072805 | 11482 | bracket++; |
a0be28da | 11483 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
11484 | return s; |
11485 | } | |
4e553d73 NIS |
11486 | } |
11487 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
11488 | * 1999-02-27 mjd-perl-patch@plover.com */ |
11489 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
11490 | && isALNUM(*s)) | |
11491 | { | |
11492 | d++; | |
11493 | while (isALNUM(*s) && d < e) { | |
11494 | *d++ = *s++; | |
11495 | } | |
11496 | if (d >= e) | |
cea2e8a9 | 11497 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 11498 | *d = '\0'; |
79072805 LW |
11499 | } |
11500 | if (*s == '}') { | |
11501 | s++; | |
7df0d042 | 11502 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 11503 | PL_lex_state = LEX_INTERPEND; |
7df0d042 AE |
11504 | PL_expect = XREF; |
11505 | } | |
d008e5eb | 11506 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 11507 | if (ckWARN(WARN_AMBIGUOUS) && |
780a5241 NC |
11508 | (keyword(dest, d - dest, 0) |
11509 | || get_cvn_flags(dest, d - dest, 0))) | |
d008e5eb | 11510 | { |
c35e046a AL |
11511 | if (funny == '#') |
11512 | funny = '@'; | |
9014280d | 11513 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
11514 | "Ambiguous use of %c{%s} resolved to %c%s", |
11515 | funny, dest, funny, dest); | |
11516 | } | |
11517 | } | |
79072805 LW |
11518 | } |
11519 | else { | |
11520 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 11521 | *dest = '\0'; |
79072805 LW |
11522 | } |
11523 | } | |
3280af22 NIS |
11524 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
11525 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
11526 | return s; |
11527 | } | |
11528 | ||
879d0c72 NC |
11529 | static U32 |
11530 | S_pmflag(U32 pmfl, const char ch) { | |
11531 | switch (ch) { | |
11532 | CASE_STD_PMMOD_FLAGS_PARSE_SET(&pmfl); | |
11533 | case GLOBAL_PAT_MOD: pmfl |= PMf_GLOBAL; break; | |
11534 | case CONTINUE_PAT_MOD: pmfl |= PMf_CONTINUE; break; | |
11535 | case ONCE_PAT_MOD: pmfl |= PMf_KEEP; break; | |
11536 | case KEEPCOPY_PAT_MOD: pmfl |= PMf_KEEPCOPY; break; | |
11537 | } | |
11538 | return pmfl; | |
11539 | } | |
11540 | ||
cea2e8a9 | 11541 | void |
2b36a5a0 | 11542 | Perl_pmflag(pTHX_ U32* pmfl, int ch) |
a0d0e21e | 11543 | { |
7918f24d NC |
11544 | PERL_ARGS_ASSERT_PMFLAG; |
11545 | ||
879d0c72 NC |
11546 | Perl_ck_warner_d(aTHX_ packWARN(WARN_DEPRECATED), |
11547 | "Perl_pmflag() is deprecated, and will be removed from the XS API"); | |
11548 | ||
cde0cee5 | 11549 | if (ch<256) { |
879d0c72 | 11550 | *pmfl = S_pmflag(*pmfl, (char)ch); |
cde0cee5 | 11551 | } |
a0d0e21e | 11552 | } |
378cc40b | 11553 | |
76e3520e | 11554 | STATIC char * |
cea2e8a9 | 11555 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 11556 | { |
97aff369 | 11557 | dVAR; |
79072805 | 11558 | PMOP *pm; |
5db06880 | 11559 | char *s = scan_str(start,!!PL_madskills,FALSE); |
10edeb5d | 11560 | const char * const valid_flags = |
a20207d7 | 11561 | (const char *)((type == OP_QR) ? QR_PAT_MODS : M_PAT_MODS); |
5db06880 NC |
11562 | #ifdef PERL_MAD |
11563 | char *modstart; | |
11564 | #endif | |
11565 | ||
7918f24d | 11566 | PERL_ARGS_ASSERT_SCAN_PAT; |
378cc40b | 11567 | |
25c09cbf | 11568 | if (!s) { |
6136c704 | 11569 | const char * const delimiter = skipspace(start); |
10edeb5d JH |
11570 | Perl_croak(aTHX_ |
11571 | (const char *) | |
11572 | (*delimiter == '?' | |
11573 | ? "Search pattern not terminated or ternary operator parsed as search pattern" | |
11574 | : "Search pattern not terminated" )); | |
25c09cbf | 11575 | } |
bbce6d69 | 11576 | |
8782bef2 | 11577 | pm = (PMOP*)newPMOP(type, 0); |
ad639bfb NC |
11578 | if (PL_multi_open == '?') { |
11579 | /* This is the only point in the code that sets PMf_ONCE: */ | |
79072805 | 11580 | pm->op_pmflags |= PMf_ONCE; |
ad639bfb NC |
11581 | |
11582 | /* Hence it's safe to do this bit of PMOP book-keeping here, which | |
11583 | allows us to restrict the list needed by reset to just the ?? | |
11584 | matches. */ | |
11585 | assert(type != OP_TRANS); | |
11586 | if (PL_curstash) { | |
daba3364 | 11587 | MAGIC *mg = mg_find((const SV *)PL_curstash, PERL_MAGIC_symtab); |
ad639bfb NC |
11588 | U32 elements; |
11589 | if (!mg) { | |
daba3364 | 11590 | mg = sv_magicext(MUTABLE_SV(PL_curstash), 0, PERL_MAGIC_symtab, 0, 0, |
ad639bfb NC |
11591 | 0); |
11592 | } | |
11593 | elements = mg->mg_len / sizeof(PMOP**); | |
11594 | Renewc(mg->mg_ptr, elements + 1, PMOP*, char); | |
11595 | ((PMOP**)mg->mg_ptr) [elements++] = pm; | |
11596 | mg->mg_len = elements * sizeof(PMOP**); | |
11597 | PmopSTASH_set(pm,PL_curstash); | |
11598 | } | |
11599 | } | |
5db06880 NC |
11600 | #ifdef PERL_MAD |
11601 | modstart = s; | |
11602 | #endif | |
6136c704 | 11603 | while (*s && strchr(valid_flags, *s)) |
879d0c72 | 11604 | pm->op_pmflags = S_pmflag(pm->op_pmflags, *s++); |
5db06880 NC |
11605 | #ifdef PERL_MAD |
11606 | if (PL_madskills && modstart != s) { | |
11607 | SV* tmptoken = newSVpvn(modstart, s - modstart); | |
11608 | append_madprops(newMADPROP('m', MAD_SV, tmptoken, 0), (OP*)pm, 0); | |
11609 | } | |
11610 | #endif | |
4ac733c9 | 11611 | /* issue a warning if /c is specified,but /g is not */ |
a2a5de95 | 11612 | if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL)) |
4ac733c9 | 11613 | { |
a2a5de95 NC |
11614 | Perl_ck_warner(aTHX_ packWARN(WARN_REGEXP), |
11615 | "Use of /c modifier is meaningless without /g" ); | |
4ac733c9 MJD |
11616 | } |
11617 | ||
3280af22 | 11618 | PL_lex_op = (OP*)pm; |
6154021b | 11619 | pl_yylval.ival = OP_MATCH; |
378cc40b LW |
11620 | return s; |
11621 | } | |
11622 | ||
76e3520e | 11623 | STATIC char * |
cea2e8a9 | 11624 | S_scan_subst(pTHX_ char *start) |
79072805 | 11625 | { |
27da23d5 | 11626 | dVAR; |
a0d0e21e | 11627 | register char *s; |
79072805 | 11628 | register PMOP *pm; |
4fdae800 | 11629 | I32 first_start; |
79072805 | 11630 | I32 es = 0; |
5db06880 NC |
11631 | #ifdef PERL_MAD |
11632 | char *modstart; | |
11633 | #endif | |
79072805 | 11634 | |
7918f24d NC |
11635 | PERL_ARGS_ASSERT_SCAN_SUBST; |
11636 | ||
6154021b | 11637 | pl_yylval.ival = OP_NULL; |
79072805 | 11638 | |
5db06880 | 11639 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 11640 | |
37fd879b | 11641 | if (!s) |
cea2e8a9 | 11642 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 11643 | |
3280af22 | 11644 | if (s[-1] == PL_multi_open) |
79072805 | 11645 | s--; |
5db06880 NC |
11646 | #ifdef PERL_MAD |
11647 | if (PL_madskills) { | |
cd81e915 NC |
11648 | CURMAD('q', PL_thisopen); |
11649 | CURMAD('_', PL_thiswhite); | |
11650 | CURMAD('E', PL_thisstuff); | |
11651 | CURMAD('Q', PL_thisclose); | |
11652 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
11653 | } |
11654 | #endif | |
79072805 | 11655 | |
3280af22 | 11656 | first_start = PL_multi_start; |
5db06880 | 11657 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 11658 | if (!s) { |
37fd879b | 11659 | if (PL_lex_stuff) { |
3280af22 | 11660 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 11661 | PL_lex_stuff = NULL; |
37fd879b | 11662 | } |
cea2e8a9 | 11663 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 11664 | } |
3280af22 | 11665 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 11666 | |
79072805 | 11667 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
5db06880 NC |
11668 | |
11669 | #ifdef PERL_MAD | |
11670 | if (PL_madskills) { | |
cd81e915 NC |
11671 | CURMAD('z', PL_thisopen); |
11672 | CURMAD('R', PL_thisstuff); | |
11673 | CURMAD('Z', PL_thisclose); | |
5db06880 NC |
11674 | } |
11675 | modstart = s; | |
11676 | #endif | |
11677 | ||
48c036b1 | 11678 | while (*s) { |
a20207d7 | 11679 | if (*s == EXEC_PAT_MOD) { |
a687059c | 11680 | s++; |
2f3197b3 | 11681 | es++; |
a687059c | 11682 | } |
a20207d7 | 11683 | else if (strchr(S_PAT_MODS, *s)) |
879d0c72 | 11684 | pm->op_pmflags = S_pmflag(pm->op_pmflags, *s++); |
48c036b1 GS |
11685 | else |
11686 | break; | |
378cc40b | 11687 | } |
79072805 | 11688 | |
5db06880 NC |
11689 | #ifdef PERL_MAD |
11690 | if (PL_madskills) { | |
11691 | if (modstart != s) | |
11692 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
11693 | append_madprops(PL_thismad, (OP*)pm, 0); |
11694 | PL_thismad = 0; | |
5db06880 NC |
11695 | } |
11696 | #endif | |
a2a5de95 NC |
11697 | if ((pm->op_pmflags & PMf_CONTINUE)) { |
11698 | Perl_ck_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" ); | |
4ac733c9 MJD |
11699 | } |
11700 | ||
79072805 | 11701 | if (es) { |
6136c704 AL |
11702 | SV * const repl = newSVpvs(""); |
11703 | ||
0244c3a4 GS |
11704 | PL_sublex_info.super_bufptr = s; |
11705 | PL_sublex_info.super_bufend = PL_bufend; | |
11706 | PL_multi_end = 0; | |
79072805 | 11707 | pm->op_pmflags |= PMf_EVAL; |
a5849ce5 NC |
11708 | while (es-- > 0) { |
11709 | if (es) | |
11710 | sv_catpvs(repl, "eval "); | |
11711 | else | |
11712 | sv_catpvs(repl, "do "); | |
11713 | } | |
6f43d98f | 11714 | sv_catpvs(repl, "{"); |
3280af22 | 11715 | sv_catsv(repl, PL_lex_repl); |
9badc361 RGS |
11716 | if (strchr(SvPVX(PL_lex_repl), '#')) |
11717 | sv_catpvs(repl, "\n"); | |
11718 | sv_catpvs(repl, "}"); | |
25da4f38 | 11719 | SvEVALED_on(repl); |
3280af22 NIS |
11720 | SvREFCNT_dec(PL_lex_repl); |
11721 | PL_lex_repl = repl; | |
378cc40b | 11722 | } |
79072805 | 11723 | |
3280af22 | 11724 | PL_lex_op = (OP*)pm; |
6154021b | 11725 | pl_yylval.ival = OP_SUBST; |
378cc40b LW |
11726 | return s; |
11727 | } | |
11728 | ||
76e3520e | 11729 | STATIC char * |
cea2e8a9 | 11730 | S_scan_trans(pTHX_ char *start) |
378cc40b | 11731 | { |
97aff369 | 11732 | dVAR; |
a0d0e21e | 11733 | register char* s; |
11343788 | 11734 | OP *o; |
79072805 | 11735 | short *tbl; |
b84c11c8 NC |
11736 | U8 squash; |
11737 | U8 del; | |
11738 | U8 complement; | |
5db06880 NC |
11739 | #ifdef PERL_MAD |
11740 | char *modstart; | |
11741 | #endif | |
79072805 | 11742 | |
7918f24d NC |
11743 | PERL_ARGS_ASSERT_SCAN_TRANS; |
11744 | ||
6154021b | 11745 | pl_yylval.ival = OP_NULL; |
79072805 | 11746 | |
5db06880 | 11747 | s = scan_str(start,!!PL_madskills,FALSE); |
37fd879b | 11748 | if (!s) |
cea2e8a9 | 11749 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
5db06880 | 11750 | |
3280af22 | 11751 | if (s[-1] == PL_multi_open) |
2f3197b3 | 11752 | s--; |
5db06880 NC |
11753 | #ifdef PERL_MAD |
11754 | if (PL_madskills) { | |
cd81e915 NC |
11755 | CURMAD('q', PL_thisopen); |
11756 | CURMAD('_', PL_thiswhite); | |
11757 | CURMAD('E', PL_thisstuff); | |
11758 | CURMAD('Q', PL_thisclose); | |
11759 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
11760 | } |
11761 | #endif | |
2f3197b3 | 11762 | |
5db06880 | 11763 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 11764 | if (!s) { |
37fd879b | 11765 | if (PL_lex_stuff) { |
3280af22 | 11766 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 11767 | PL_lex_stuff = NULL; |
37fd879b | 11768 | } |
cea2e8a9 | 11769 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 11770 | } |
5db06880 | 11771 | if (PL_madskills) { |
cd81e915 NC |
11772 | CURMAD('z', PL_thisopen); |
11773 | CURMAD('R', PL_thisstuff); | |
11774 | CURMAD('Z', PL_thisclose); | |
5db06880 | 11775 | } |
79072805 | 11776 | |
a0ed51b3 | 11777 | complement = del = squash = 0; |
5db06880 NC |
11778 | #ifdef PERL_MAD |
11779 | modstart = s; | |
11780 | #endif | |
7a1e2023 NC |
11781 | while (1) { |
11782 | switch (*s) { | |
11783 | case 'c': | |
79072805 | 11784 | complement = OPpTRANS_COMPLEMENT; |
7a1e2023 NC |
11785 | break; |
11786 | case 'd': | |
a0ed51b3 | 11787 | del = OPpTRANS_DELETE; |
7a1e2023 NC |
11788 | break; |
11789 | case 's': | |
79072805 | 11790 | squash = OPpTRANS_SQUASH; |
7a1e2023 NC |
11791 | break; |
11792 | default: | |
11793 | goto no_more; | |
11794 | } | |
395c3793 LW |
11795 | s++; |
11796 | } | |
7a1e2023 | 11797 | no_more: |
8973db79 | 11798 | |
aa1f7c5b | 11799 | tbl = (short *)PerlMemShared_calloc(complement&&!del?258:256, sizeof(short)); |
8973db79 | 11800 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
59f00321 RGS |
11801 | o->op_private &= ~OPpTRANS_ALL; |
11802 | o->op_private |= del|squash|complement| | |
7948272d NIS |
11803 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| |
11804 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 11805 | |
3280af22 | 11806 | PL_lex_op = o; |
6154021b | 11807 | pl_yylval.ival = OP_TRANS; |
5db06880 NC |
11808 | |
11809 | #ifdef PERL_MAD | |
11810 | if (PL_madskills) { | |
11811 | if (modstart != s) | |
11812 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
11813 | append_madprops(PL_thismad, o, 0); |
11814 | PL_thismad = 0; | |
5db06880 NC |
11815 | } |
11816 | #endif | |
11817 | ||
79072805 LW |
11818 | return s; |
11819 | } | |
11820 | ||
76e3520e | 11821 | STATIC char * |
cea2e8a9 | 11822 | S_scan_heredoc(pTHX_ register char *s) |
79072805 | 11823 | { |
97aff369 | 11824 | dVAR; |
79072805 LW |
11825 | SV *herewas; |
11826 | I32 op_type = OP_SCALAR; | |
11827 | I32 len; | |
11828 | SV *tmpstr; | |
11829 | char term; | |
73d840c0 | 11830 | const char *found_newline; |
79072805 | 11831 | register char *d; |
fc36a67e | 11832 | register char *e; |
4633a7c4 | 11833 | char *peek; |
f54cb97a | 11834 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
5db06880 NC |
11835 | #ifdef PERL_MAD |
11836 | I32 stuffstart = s - SvPVX(PL_linestr); | |
11837 | char *tstart; | |
11838 | ||
cd81e915 | 11839 | PL_realtokenstart = -1; |
5db06880 | 11840 | #endif |
79072805 | 11841 | |
7918f24d NC |
11842 | PERL_ARGS_ASSERT_SCAN_HEREDOC; |
11843 | ||
79072805 | 11844 | s += 2; |
3280af22 NIS |
11845 | d = PL_tokenbuf; |
11846 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 11847 | if (!outer) |
79072805 | 11848 | *d++ = '\n'; |
c35e046a AL |
11849 | peek = s; |
11850 | while (SPACE_OR_TAB(*peek)) | |
11851 | peek++; | |
3792a11b | 11852 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 11853 | s = peek; |
79072805 | 11854 | term = *s++; |
3280af22 | 11855 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 11856 | d += len; |
3280af22 | 11857 | if (s < PL_bufend) |
79072805 | 11858 | s++; |
79072805 LW |
11859 | } |
11860 | else { | |
11861 | if (*s == '\\') | |
11862 | s++, term = '\''; | |
11863 | else | |
11864 | term = '"'; | |
7e2040f0 | 11865 | if (!isALNUM_lazy_if(s,UTF)) |
8ab8f082 | 11866 | deprecate("bare << to mean <<\"\""); |
7e2040f0 | 11867 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 11868 | if (d < e) |
11869 | *d++ = *s; | |
11870 | } | |
11871 | } | |
3280af22 | 11872 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 11873 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
11874 | *d++ = '\n'; |
11875 | *d = '\0'; | |
3280af22 | 11876 | len = d - PL_tokenbuf; |
5db06880 NC |
11877 | |
11878 | #ifdef PERL_MAD | |
11879 | if (PL_madskills) { | |
11880 | tstart = PL_tokenbuf + !outer; | |
cd81e915 | 11881 | PL_thisclose = newSVpvn(tstart, len - !outer); |
5db06880 | 11882 | tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 | 11883 | PL_thisopen = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11884 | stuffstart = s - SvPVX(PL_linestr); |
11885 | } | |
11886 | #endif | |
6a27c188 | 11887 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
11888 | d = strchr(s, '\r'); |
11889 | if (d) { | |
b464bac0 | 11890 | char * const olds = s; |
f63a84b2 | 11891 | s = d; |
3280af22 | 11892 | while (s < PL_bufend) { |
f63a84b2 LW |
11893 | if (*s == '\r') { |
11894 | *d++ = '\n'; | |
11895 | if (*++s == '\n') | |
11896 | s++; | |
11897 | } | |
11898 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
11899 | *d++ = *s++; | |
11900 | s++; | |
11901 | } | |
11902 | else | |
11903 | *d++ = *s++; | |
11904 | } | |
11905 | *d = '\0'; | |
3280af22 | 11906 | PL_bufend = d; |
95a20fc0 | 11907 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
11908 | s = olds; |
11909 | } | |
11910 | #endif | |
5db06880 NC |
11911 | #ifdef PERL_MAD |
11912 | found_newline = 0; | |
11913 | #endif | |
10edeb5d | 11914 | if ( outer || !(found_newline = (char*)memchr((void*)s, '\n', PL_bufend - s)) ) { |
73d840c0 AL |
11915 | herewas = newSVpvn(s,PL_bufend-s); |
11916 | } | |
11917 | else { | |
5db06880 NC |
11918 | #ifdef PERL_MAD |
11919 | herewas = newSVpvn(s-1,found_newline-s+1); | |
11920 | #else | |
73d840c0 AL |
11921 | s--; |
11922 | herewas = newSVpvn(s,found_newline-s); | |
5db06880 | 11923 | #endif |
73d840c0 | 11924 | } |
5db06880 NC |
11925 | #ifdef PERL_MAD |
11926 | if (PL_madskills) { | |
11927 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11928 | if (PL_thisstuff) |
11929 | sv_catpvn(PL_thisstuff, tstart, s - tstart); | |
5db06880 | 11930 | else |
cd81e915 | 11931 | PL_thisstuff = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11932 | } |
11933 | #endif | |
79072805 | 11934 | s += SvCUR(herewas); |
748a9306 | 11935 | |
5db06880 NC |
11936 | #ifdef PERL_MAD |
11937 | stuffstart = s - SvPVX(PL_linestr); | |
11938 | ||
11939 | if (found_newline) | |
11940 | s--; | |
11941 | #endif | |
11942 | ||
7d0a29fe NC |
11943 | tmpstr = newSV_type(SVt_PVIV); |
11944 | SvGROW(tmpstr, 80); | |
748a9306 | 11945 | if (term == '\'') { |
79072805 | 11946 | op_type = OP_CONST; |
45977657 | 11947 | SvIV_set(tmpstr, -1); |
748a9306 LW |
11948 | } |
11949 | else if (term == '`') { | |
79072805 | 11950 | op_type = OP_BACKTICK; |
45977657 | 11951 | SvIV_set(tmpstr, '\\'); |
748a9306 | 11952 | } |
79072805 LW |
11953 | |
11954 | CLINE; | |
57843af0 | 11955 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
11956 | PL_multi_open = PL_multi_close = '<'; |
11957 | term = *PL_tokenbuf; | |
0244c3a4 | 11958 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
6136c704 AL |
11959 | char * const bufptr = PL_sublex_info.super_bufptr; |
11960 | char * const bufend = PL_sublex_info.super_bufend; | |
b464bac0 | 11961 | char * const olds = s - SvCUR(herewas); |
0244c3a4 GS |
11962 | s = strchr(bufptr, '\n'); |
11963 | if (!s) | |
11964 | s = bufend; | |
11965 | d = s; | |
11966 | while (s < bufend && | |
11967 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
11968 | if (*s++ == '\n') | |
57843af0 | 11969 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
11970 | } |
11971 | if (s >= bufend) { | |
eb160463 | 11972 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
11973 | missingterm(PL_tokenbuf); |
11974 | } | |
11975 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
11976 | sv_setpvn(tmpstr,d+1,s-d); | |
11977 | s += len - 1; | |
11978 | sv_catpvn(herewas,s,bufend-s); | |
95a20fc0 | 11979 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
11980 | |
11981 | s = olds; | |
11982 | goto retval; | |
11983 | } | |
11984 | else if (!outer) { | |
79072805 | 11985 | d = s; |
3280af22 NIS |
11986 | while (s < PL_bufend && |
11987 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 11988 | if (*s++ == '\n') |
57843af0 | 11989 | CopLINE_inc(PL_curcop); |
79072805 | 11990 | } |
3280af22 | 11991 | if (s >= PL_bufend) { |
eb160463 | 11992 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11993 | missingterm(PL_tokenbuf); |
79072805 LW |
11994 | } |
11995 | sv_setpvn(tmpstr,d+1,s-d); | |
5db06880 NC |
11996 | #ifdef PERL_MAD |
11997 | if (PL_madskills) { | |
cd81e915 NC |
11998 | if (PL_thisstuff) |
11999 | sv_catpvn(PL_thisstuff, d + 1, s - d); | |
5db06880 | 12000 | else |
cd81e915 | 12001 | PL_thisstuff = newSVpvn(d + 1, s - d); |
5db06880 NC |
12002 | stuffstart = s - SvPVX(PL_linestr); |
12003 | } | |
12004 | #endif | |
79072805 | 12005 | s += len - 1; |
57843af0 | 12006 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 12007 | |
3280af22 NIS |
12008 | sv_catpvn(herewas,s,PL_bufend-s); |
12009 | sv_setsv(PL_linestr,herewas); | |
12010 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
12011 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 12012 | PL_last_lop = PL_last_uni = NULL; |
79072805 LW |
12013 | } |
12014 | else | |
76f68e9b | 12015 | sv_setpvs(tmpstr,""); /* avoid "uninitialized" warning */ |
3280af22 | 12016 | while (s >= PL_bufend) { /* multiple line string? */ |
5db06880 NC |
12017 | #ifdef PERL_MAD |
12018 | if (PL_madskills) { | |
12019 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
12020 | if (PL_thisstuff) |
12021 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 12022 | else |
cd81e915 | 12023 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
12024 | } |
12025 | #endif | |
f0e67a1d | 12026 | PL_bufptr = s; |
17cc9359 | 12027 | CopLINE_inc(PL_curcop); |
f0e67a1d | 12028 | if (!outer || !lex_next_chunk(0)) { |
eb160463 | 12029 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 12030 | missingterm(PL_tokenbuf); |
79072805 | 12031 | } |
17cc9359 | 12032 | CopLINE_dec(PL_curcop); |
f0e67a1d | 12033 | s = PL_bufptr; |
5db06880 NC |
12034 | #ifdef PERL_MAD |
12035 | stuffstart = s - SvPVX(PL_linestr); | |
12036 | #endif | |
57843af0 | 12037 | CopLINE_inc(PL_curcop); |
3280af22 | 12038 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 12039 | PL_last_lop = PL_last_uni = NULL; |
6a27c188 | 12040 | #ifndef PERL_STRICT_CR |
3280af22 | 12041 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
12042 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
12043 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 12044 | { |
3280af22 NIS |
12045 | PL_bufend[-2] = '\n'; |
12046 | PL_bufend--; | |
95a20fc0 | 12047 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 12048 | } |
3280af22 NIS |
12049 | else if (PL_bufend[-1] == '\r') |
12050 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 12051 | } |
3280af22 NIS |
12052 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
12053 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 12054 | #endif |
3280af22 | 12055 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
95a20fc0 | 12056 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
1de9afcd | 12057 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
12058 | sv_catsv(PL_linestr,herewas); |
12059 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
1de9afcd | 12060 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
12061 | } |
12062 | else { | |
3280af22 NIS |
12063 | s = PL_bufend; |
12064 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
12065 | } |
12066 | } | |
79072805 | 12067 | s++; |
0244c3a4 | 12068 | retval: |
57843af0 | 12069 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 12070 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
1da4ca5f | 12071 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 12072 | } |
8990e307 | 12073 | SvREFCNT_dec(herewas); |
2f31ce75 | 12074 | if (!IN_BYTES) { |
95a20fc0 | 12075 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
2f31ce75 JH |
12076 | SvUTF8_on(tmpstr); |
12077 | else if (PL_encoding) | |
12078 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
12079 | } | |
3280af22 | 12080 | PL_lex_stuff = tmpstr; |
6154021b | 12081 | pl_yylval.ival = op_type; |
79072805 LW |
12082 | return s; |
12083 | } | |
12084 | ||
02aa26ce NT |
12085 | /* scan_inputsymbol |
12086 | takes: current position in input buffer | |
12087 | returns: new position in input buffer | |
6154021b | 12088 | side-effects: pl_yylval and lex_op are set. |
02aa26ce NT |
12089 | |
12090 | This code handles: | |
12091 | ||
12092 | <> read from ARGV | |
12093 | <FH> read from filehandle | |
12094 | <pkg::FH> read from package qualified filehandle | |
12095 | <pkg'FH> read from package qualified filehandle | |
12096 | <$fh> read from filehandle in $fh | |
12097 | <*.h> filename glob | |
12098 | ||
12099 | */ | |
12100 | ||
76e3520e | 12101 | STATIC char * |
cea2e8a9 | 12102 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 12103 | { |
97aff369 | 12104 | dVAR; |
02aa26ce | 12105 | register char *s = start; /* current position in buffer */ |
1b420867 | 12106 | char *end; |
79072805 | 12107 | I32 len; |
6136c704 AL |
12108 | char *d = PL_tokenbuf; /* start of temp holding space */ |
12109 | const char * const e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
12110 | ||
7918f24d NC |
12111 | PERL_ARGS_ASSERT_SCAN_INPUTSYMBOL; |
12112 | ||
1b420867 GS |
12113 | end = strchr(s, '\n'); |
12114 | if (!end) | |
12115 | end = PL_bufend; | |
12116 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
12117 | |
12118 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 12119 | or if it didn't end, or if we see a newline |
02aa26ce NT |
12120 | */ |
12121 | ||
bb7a0f54 | 12122 | if (len >= (I32)sizeof PL_tokenbuf) |
cea2e8a9 | 12123 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 12124 | if (s >= end) |
cea2e8a9 | 12125 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 12126 | |
fc36a67e | 12127 | s++; |
02aa26ce NT |
12128 | |
12129 | /* check for <$fh> | |
12130 | Remember, only scalar variables are interpreted as filehandles by | |
12131 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
12132 | treated as a glob() call. | |
12133 | This code makes use of the fact that except for the $ at the front, | |
12134 | a scalar variable and a filehandle look the same. | |
12135 | */ | |
4633a7c4 | 12136 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
12137 | |
12138 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 12139 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 12140 | d++; |
02aa26ce NT |
12141 | |
12142 | /* If we've tried to read what we allow filehandles to look like, and | |
12143 | there's still text left, then it must be a glob() and not a getline. | |
12144 | Use scan_str to pull out the stuff between the <> and treat it | |
12145 | as nothing more than a string. | |
12146 | */ | |
12147 | ||
3280af22 | 12148 | if (d - PL_tokenbuf != len) { |
6154021b | 12149 | pl_yylval.ival = OP_GLOB; |
5db06880 | 12150 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 12151 | if (!s) |
cea2e8a9 | 12152 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
12153 | return s; |
12154 | } | |
395c3793 | 12155 | else { |
9b3023bc | 12156 | bool readline_overriden = FALSE; |
6136c704 | 12157 | GV *gv_readline; |
9b3023bc | 12158 | GV **gvp; |
02aa26ce | 12159 | /* we're in a filehandle read situation */ |
3280af22 | 12160 | d = PL_tokenbuf; |
02aa26ce NT |
12161 | |
12162 | /* turn <> into <ARGV> */ | |
79072805 | 12163 | if (!len) |
689badd5 | 12164 | Copy("ARGV",d,5,char); |
02aa26ce | 12165 | |
9b3023bc | 12166 | /* Check whether readline() is overriden */ |
fafc274c | 12167 | gv_readline = gv_fetchpvs("readline", GV_NOTQUAL, SVt_PVCV); |
6136c704 | 12168 | if ((gv_readline |
ba979b31 | 12169 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) |
9b3023bc | 12170 | || |
017a3ce5 | 12171 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE)) |
9e0d86f8 | 12172 | && (gv_readline = *gvp) && isGV_with_GP(gv_readline) |
ba979b31 | 12173 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
12174 | readline_overriden = TRUE; |
12175 | ||
02aa26ce NT |
12176 | /* if <$fh>, create the ops to turn the variable into a |
12177 | filehandle | |
12178 | */ | |
79072805 | 12179 | if (*d == '$') { |
02aa26ce NT |
12180 | /* try to find it in the pad for this block, otherwise find |
12181 | add symbol table ops | |
12182 | */ | |
f8f98e0a | 12183 | const PADOFFSET tmp = pad_findmy(d, len, 0); |
bbd11bfc | 12184 | if (tmp != NOT_IN_PAD) { |
00b1698f | 12185 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
6136c704 AL |
12186 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
12187 | HEK * const stashname = HvNAME_HEK(stash); | |
12188 | SV * const sym = sv_2mortal(newSVhek(stashname)); | |
396482e1 | 12189 | sv_catpvs(sym, "::"); |
f558d5af JH |
12190 | sv_catpv(sym, d+1); |
12191 | d = SvPVX(sym); | |
12192 | goto intro_sym; | |
12193 | } | |
12194 | else { | |
6136c704 | 12195 | OP * const o = newOP(OP_PADSV, 0); |
f558d5af | 12196 | o->op_targ = tmp; |
9b3023bc RGS |
12197 | PL_lex_op = readline_overriden |
12198 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
12199 | append_elem(OP_LIST, o, | |
12200 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
12201 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 12202 | } |
a0d0e21e LW |
12203 | } |
12204 | else { | |
f558d5af JH |
12205 | GV *gv; |
12206 | ++d; | |
12207 | intro_sym: | |
12208 | gv = gv_fetchpv(d, | |
12209 | (PL_in_eval | |
12210 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 12211 | : GV_ADDMULTI), |
f558d5af | 12212 | SVt_PV); |
9b3023bc RGS |
12213 | PL_lex_op = readline_overriden |
12214 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
12215 | append_elem(OP_LIST, | |
12216 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
12217 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
12218 | : (OP*)newUNOP(OP_READLINE, 0, | |
12219 | newUNOP(OP_RV2SV, 0, | |
12220 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 12221 | } |
7c6fadd6 RGS |
12222 | if (!readline_overriden) |
12223 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
6154021b RGS |
12224 | /* we created the ops in PL_lex_op, so make pl_yylval.ival a null op */ |
12225 | pl_yylval.ival = OP_NULL; | |
79072805 | 12226 | } |
02aa26ce NT |
12227 | |
12228 | /* If it's none of the above, it must be a literal filehandle | |
12229 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 12230 | else { |
6136c704 | 12231 | GV * const gv = gv_fetchpv(d, GV_ADD, SVt_PVIO); |
9b3023bc RGS |
12232 | PL_lex_op = readline_overriden |
12233 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
12234 | append_elem(OP_LIST, | |
12235 | newGVOP(OP_GV, 0, gv), | |
12236 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
12237 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
6154021b | 12238 | pl_yylval.ival = OP_NULL; |
79072805 LW |
12239 | } |
12240 | } | |
02aa26ce | 12241 | |
79072805 LW |
12242 | return s; |
12243 | } | |
12244 | ||
02aa26ce NT |
12245 | |
12246 | /* scan_str | |
12247 | takes: start position in buffer | |
09bef843 SB |
12248 | keep_quoted preserve \ on the embedded delimiter(s) |
12249 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
12250 | returns: position to continue reading from buffer |
12251 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
12252 | updates the read buffer. | |
12253 | ||
12254 | This subroutine pulls a string out of the input. It is called for: | |
12255 | q single quotes q(literal text) | |
12256 | ' single quotes 'literal text' | |
12257 | qq double quotes qq(interpolate $here please) | |
12258 | " double quotes "interpolate $here please" | |
12259 | qx backticks qx(/bin/ls -l) | |
12260 | ` backticks `/bin/ls -l` | |
12261 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
12262 | m// regexp match m/this/ | |
12263 | s/// regexp substitute s/this/that/ | |
12264 | tr/// string transliterate tr/this/that/ | |
12265 | y/// string transliterate y/this/that/ | |
12266 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 12267 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
12268 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
12269 | ||
12270 | In most of these cases (all but <>, patterns and transliterate) | |
12271 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
12272 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
12273 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
12274 | calls scan_str(). | |
4e553d73 | 12275 | |
02aa26ce NT |
12276 | It skips whitespace before the string starts, and treats the first |
12277 | character as the delimiter. If the delimiter is one of ([{< then | |
12278 | the corresponding "close" character )]}> is used as the closing | |
12279 | delimiter. It allows quoting of delimiters, and if the string has | |
12280 | balanced delimiters ([{<>}]) it allows nesting. | |
12281 | ||
37fd879b HS |
12282 | On success, the SV with the resulting string is put into lex_stuff or, |
12283 | if that is already non-NULL, into lex_repl. The second case occurs only | |
12284 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
12285 | For convenience, the terminating delimiter character is stuffed into | |
12286 | SvIVX of the SV. | |
02aa26ce NT |
12287 | */ |
12288 | ||
76e3520e | 12289 | STATIC char * |
09bef843 | 12290 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 12291 | { |
97aff369 | 12292 | dVAR; |
02aa26ce | 12293 | SV *sv; /* scalar value: string */ |
d3fcec1f | 12294 | const char *tmps; /* temp string, used for delimiter matching */ |
02aa26ce NT |
12295 | register char *s = start; /* current position in the buffer */ |
12296 | register char term; /* terminating character */ | |
12297 | register char *to; /* current position in the sv's data */ | |
12298 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 12299 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
220e2d4e | 12300 | I32 termcode; /* terminating char. code */ |
89ebb4a3 | 12301 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
220e2d4e | 12302 | STRLEN termlen; /* length of terminating string */ |
0331ef07 | 12303 | int last_off = 0; /* last position for nesting bracket */ |
5db06880 NC |
12304 | #ifdef PERL_MAD |
12305 | int stuffstart; | |
12306 | char *tstart; | |
12307 | #endif | |
02aa26ce | 12308 | |
7918f24d NC |
12309 | PERL_ARGS_ASSERT_SCAN_STR; |
12310 | ||
02aa26ce | 12311 | /* skip space before the delimiter */ |
29595ff2 NC |
12312 | if (isSPACE(*s)) { |
12313 | s = PEEKSPACE(s); | |
12314 | } | |
02aa26ce | 12315 | |
5db06880 | 12316 | #ifdef PERL_MAD |
cd81e915 NC |
12317 | if (PL_realtokenstart >= 0) { |
12318 | stuffstart = PL_realtokenstart; | |
12319 | PL_realtokenstart = -1; | |
5db06880 NC |
12320 | } |
12321 | else | |
12322 | stuffstart = start - SvPVX(PL_linestr); | |
12323 | #endif | |
02aa26ce | 12324 | /* mark where we are, in case we need to report errors */ |
79072805 | 12325 | CLINE; |
02aa26ce NT |
12326 | |
12327 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 12328 | term = *s; |
220e2d4e IH |
12329 | if (!UTF) { |
12330 | termcode = termstr[0] = term; | |
12331 | termlen = 1; | |
12332 | } | |
12333 | else { | |
f3b9ce0f | 12334 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
220e2d4e IH |
12335 | Copy(s, termstr, termlen, U8); |
12336 | if (!UTF8_IS_INVARIANT(term)) | |
12337 | has_utf8 = TRUE; | |
12338 | } | |
b1c7b182 | 12339 | |
02aa26ce | 12340 | /* mark where we are */ |
57843af0 | 12341 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 12342 | PL_multi_open = term; |
02aa26ce NT |
12343 | |
12344 | /* find corresponding closing delimiter */ | |
93a17b20 | 12345 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
220e2d4e IH |
12346 | termcode = termstr[0] = term = tmps[5]; |
12347 | ||
3280af22 | 12348 | PL_multi_close = term; |
79072805 | 12349 | |
561b68a9 SH |
12350 | /* create a new SV to hold the contents. 79 is the SV's initial length. |
12351 | What a random number. */ | |
7d0a29fe NC |
12352 | sv = newSV_type(SVt_PVIV); |
12353 | SvGROW(sv, 80); | |
45977657 | 12354 | SvIV_set(sv, termcode); |
a0d0e21e | 12355 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
12356 | |
12357 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 12358 | if (keep_delims) |
220e2d4e IH |
12359 | sv_catpvn(sv, s, termlen); |
12360 | s += termlen; | |
5db06880 NC |
12361 | #ifdef PERL_MAD |
12362 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
12363 | if (!PL_thisopen && !keep_delims) { |
12364 | PL_thisopen = newSVpvn(tstart, s - tstart); | |
5db06880 NC |
12365 | stuffstart = s - SvPVX(PL_linestr); |
12366 | } | |
12367 | #endif | |
93a17b20 | 12368 | for (;;) { |
220e2d4e IH |
12369 | if (PL_encoding && !UTF) { |
12370 | bool cont = TRUE; | |
12371 | ||
12372 | while (cont) { | |
95a20fc0 | 12373 | int offset = s - SvPVX_const(PL_linestr); |
66a1b24b | 12374 | const bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f3b9ce0f | 12375 | &offset, (char*)termstr, termlen); |
6136c704 AL |
12376 | const char * const ns = SvPVX_const(PL_linestr) + offset; |
12377 | char * const svlast = SvEND(sv) - 1; | |
220e2d4e IH |
12378 | |
12379 | for (; s < ns; s++) { | |
12380 | if (*s == '\n' && !PL_rsfp) | |
12381 | CopLINE_inc(PL_curcop); | |
12382 | } | |
12383 | if (!found) | |
12384 | goto read_more_line; | |
12385 | else { | |
12386 | /* handle quoted delimiters */ | |
52327caf | 12387 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
f54cb97a | 12388 | const char *t; |
95a20fc0 | 12389 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
220e2d4e IH |
12390 | t--; |
12391 | if ((svlast-1 - t) % 2) { | |
12392 | if (!keep_quoted) { | |
12393 | *(svlast-1) = term; | |
12394 | *svlast = '\0'; | |
12395 | SvCUR_set(sv, SvCUR(sv) - 1); | |
12396 | } | |
12397 | continue; | |
12398 | } | |
12399 | } | |
12400 | if (PL_multi_open == PL_multi_close) { | |
12401 | cont = FALSE; | |
12402 | } | |
12403 | else { | |
f54cb97a AL |
12404 | const char *t; |
12405 | char *w; | |
0331ef07 | 12406 | for (t = w = SvPVX(sv)+last_off; t < svlast; w++, t++) { |
220e2d4e IH |
12407 | /* At here, all closes are "was quoted" one, |
12408 | so we don't check PL_multi_close. */ | |
12409 | if (*t == '\\') { | |
12410 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
12411 | t++; | |
12412 | else | |
12413 | *w++ = *t++; | |
12414 | } | |
12415 | else if (*t == PL_multi_open) | |
12416 | brackets++; | |
12417 | ||
12418 | *w = *t; | |
12419 | } | |
12420 | if (w < t) { | |
12421 | *w++ = term; | |
12422 | *w = '\0'; | |
95a20fc0 | 12423 | SvCUR_set(sv, w - SvPVX_const(sv)); |
220e2d4e | 12424 | } |
0331ef07 | 12425 | last_off = w - SvPVX(sv); |
220e2d4e IH |
12426 | if (--brackets <= 0) |
12427 | cont = FALSE; | |
12428 | } | |
12429 | } | |
12430 | } | |
12431 | if (!keep_delims) { | |
12432 | SvCUR_set(sv, SvCUR(sv) - 1); | |
12433 | *SvEND(sv) = '\0'; | |
12434 | } | |
12435 | break; | |
12436 | } | |
12437 | ||
02aa26ce | 12438 | /* extend sv if need be */ |
3280af22 | 12439 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 12440 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 12441 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 12442 | |
02aa26ce | 12443 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
12444 | if (PL_multi_open == PL_multi_close) { |
12445 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 12446 | /* embedded newlines increment the current line number */ |
3280af22 | 12447 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 12448 | CopLINE_inc(PL_curcop); |
02aa26ce | 12449 | /* handle quoted delimiters */ |
3280af22 | 12450 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 12451 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 12452 | s++; |
02aa26ce | 12453 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
12454 | else |
12455 | *to++ = *s++; | |
12456 | } | |
02aa26ce NT |
12457 | /* terminate when run out of buffer (the for() condition), or |
12458 | have found the terminator */ | |
220e2d4e IH |
12459 | else if (*s == term) { |
12460 | if (termlen == 1) | |
12461 | break; | |
f3b9ce0f | 12462 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
220e2d4e IH |
12463 | break; |
12464 | } | |
63cd0674 | 12465 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 12466 | has_utf8 = TRUE; |
93a17b20 LW |
12467 | *to = *s; |
12468 | } | |
12469 | } | |
02aa26ce NT |
12470 | |
12471 | /* if the terminator isn't the same as the start character (e.g., | |
12472 | matched brackets), we have to allow more in the quoting, and | |
12473 | be prepared for nested brackets. | |
12474 | */ | |
93a17b20 | 12475 | else { |
02aa26ce | 12476 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 12477 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 12478 | /* embedded newlines increment the line count */ |
3280af22 | 12479 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 12480 | CopLINE_inc(PL_curcop); |
02aa26ce | 12481 | /* backslashes can escape the open or closing characters */ |
3280af22 | 12482 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
12483 | if (!keep_quoted && |
12484 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
12485 | s++; |
12486 | else | |
12487 | *to++ = *s++; | |
12488 | } | |
02aa26ce | 12489 | /* allow nested opens and closes */ |
3280af22 | 12490 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 12491 | break; |
3280af22 | 12492 | else if (*s == PL_multi_open) |
93a17b20 | 12493 | brackets++; |
63cd0674 | 12494 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 12495 | has_utf8 = TRUE; |
93a17b20 LW |
12496 | *to = *s; |
12497 | } | |
12498 | } | |
02aa26ce | 12499 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 12500 | *to = '\0'; |
95a20fc0 | 12501 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 12502 | |
02aa26ce NT |
12503 | /* |
12504 | * this next chunk reads more into the buffer if we're not done yet | |
12505 | */ | |
12506 | ||
b1c7b182 GS |
12507 | if (s < PL_bufend) |
12508 | break; /* handle case where we are done yet :-) */ | |
79072805 | 12509 | |
6a27c188 | 12510 | #ifndef PERL_STRICT_CR |
95a20fc0 | 12511 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
12512 | if ((to[-2] == '\r' && to[-1] == '\n') || |
12513 | (to[-2] == '\n' && to[-1] == '\r')) | |
12514 | { | |
f63a84b2 LW |
12515 | to[-2] = '\n'; |
12516 | to--; | |
95a20fc0 | 12517 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
12518 | } |
12519 | else if (to[-1] == '\r') | |
12520 | to[-1] = '\n'; | |
12521 | } | |
95a20fc0 | 12522 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
12523 | to[-1] = '\n'; |
12524 | #endif | |
12525 | ||
220e2d4e | 12526 | read_more_line: |
02aa26ce NT |
12527 | /* if we're out of file, or a read fails, bail and reset the current |
12528 | line marker so we can report where the unterminated string began | |
12529 | */ | |
5db06880 NC |
12530 | #ifdef PERL_MAD |
12531 | if (PL_madskills) { | |
c35e046a | 12532 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 NC |
12533 | if (PL_thisstuff) |
12534 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 12535 | else |
cd81e915 | 12536 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
12537 | } |
12538 | #endif | |
f0e67a1d Z |
12539 | CopLINE_inc(PL_curcop); |
12540 | PL_bufptr = PL_bufend; | |
12541 | if (!lex_next_chunk(0)) { | |
c07a80fd | 12542 | sv_free(sv); |
eb160463 | 12543 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
bd61b366 | 12544 | return NULL; |
79072805 | 12545 | } |
f0e67a1d | 12546 | s = PL_bufptr; |
5db06880 NC |
12547 | #ifdef PERL_MAD |
12548 | stuffstart = 0; | |
12549 | #endif | |
378cc40b | 12550 | } |
4e553d73 | 12551 | |
02aa26ce NT |
12552 | /* at this point, we have successfully read the delimited string */ |
12553 | ||
220e2d4e | 12554 | if (!PL_encoding || UTF) { |
5db06880 NC |
12555 | #ifdef PERL_MAD |
12556 | if (PL_madskills) { | |
c35e046a | 12557 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
29522234 | 12558 | const int len = s - tstart; |
cd81e915 | 12559 | if (PL_thisstuff) |
c35e046a | 12560 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 12561 | else |
c35e046a | 12562 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
12563 | if (!PL_thisclose && !keep_delims) |
12564 | PL_thisclose = newSVpvn(s,termlen); | |
5db06880 NC |
12565 | } |
12566 | #endif | |
12567 | ||
220e2d4e IH |
12568 | if (keep_delims) |
12569 | sv_catpvn(sv, s, termlen); | |
12570 | s += termlen; | |
12571 | } | |
5db06880 NC |
12572 | #ifdef PERL_MAD |
12573 | else { | |
12574 | if (PL_madskills) { | |
c35e046a AL |
12575 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
12576 | const int len = s - tstart - termlen; | |
cd81e915 | 12577 | if (PL_thisstuff) |
c35e046a | 12578 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 12579 | else |
c35e046a | 12580 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
12581 | if (!PL_thisclose && !keep_delims) |
12582 | PL_thisclose = newSVpvn(s - termlen,termlen); | |
5db06880 NC |
12583 | } |
12584 | } | |
12585 | #endif | |
220e2d4e | 12586 | if (has_utf8 || PL_encoding) |
b1c7b182 | 12587 | SvUTF8_on(sv); |
d0063567 | 12588 | |
57843af0 | 12589 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
12590 | |
12591 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
12592 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
12593 | SvLEN_set(sv, SvCUR(sv) + 1); | |
b7e9a5c2 | 12594 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 12595 | } |
02aa26ce NT |
12596 | |
12597 | /* decide whether this is the first or second quoted string we've read | |
12598 | for this op | |
12599 | */ | |
4e553d73 | 12600 | |
3280af22 NIS |
12601 | if (PL_lex_stuff) |
12602 | PL_lex_repl = sv; | |
79072805 | 12603 | else |
3280af22 | 12604 | PL_lex_stuff = sv; |
378cc40b LW |
12605 | return s; |
12606 | } | |
12607 | ||
02aa26ce NT |
12608 | /* |
12609 | scan_num | |
12610 | takes: pointer to position in buffer | |
12611 | returns: pointer to new position in buffer | |
6154021b | 12612 | side-effects: builds ops for the constant in pl_yylval.op |
02aa26ce NT |
12613 | |
12614 | Read a number in any of the formats that Perl accepts: | |
12615 | ||
7fd134d9 JH |
12616 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
12617 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
12618 | 0b[01](_?[01])* |
12619 | 0[0-7](_?[0-7])* | |
12620 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 12621 | |
3280af22 | 12622 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
12623 | thing it reads. |
12624 | ||
12625 | If it reads a number without a decimal point or an exponent, it will | |
12626 | try converting the number to an integer and see if it can do so | |
12627 | without loss of precision. | |
12628 | */ | |
4e553d73 | 12629 | |
378cc40b | 12630 | char * |
bfed75c6 | 12631 | Perl_scan_num(pTHX_ const char *start, YYSTYPE* lvalp) |
378cc40b | 12632 | { |
97aff369 | 12633 | dVAR; |
bfed75c6 | 12634 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
12635 | register char *d; /* destination in temp buffer */ |
12636 | register char *e; /* end of temp buffer */ | |
86554af2 | 12637 | NV nv; /* number read, as a double */ |
a0714e2c | 12638 | SV *sv = NULL; /* place to put the converted number */ |
a86a20aa | 12639 | bool floatit; /* boolean: int or float? */ |
cbbf8932 | 12640 | const char *lastub = NULL; /* position of last underbar */ |
bfed75c6 | 12641 | static char const number_too_long[] = "Number too long"; |
378cc40b | 12642 | |
7918f24d NC |
12643 | PERL_ARGS_ASSERT_SCAN_NUM; |
12644 | ||
02aa26ce NT |
12645 | /* We use the first character to decide what type of number this is */ |
12646 | ||
378cc40b | 12647 | switch (*s) { |
79072805 | 12648 | default: |
cea2e8a9 | 12649 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 12650 | |
02aa26ce | 12651 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 12652 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
12653 | case '0': |
12654 | { | |
02aa26ce NT |
12655 | /* variables: |
12656 | u holds the "number so far" | |
4f19785b WSI |
12657 | shift the power of 2 of the base |
12658 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
12659 | overflowed was the number more than we can hold? |
12660 | ||
12661 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
12662 | we in octal/hex/binary?" indicator to disallow hex characters |
12663 | when in octal mode. | |
02aa26ce | 12664 | */ |
9e24b6e2 JH |
12665 | NV n = 0.0; |
12666 | UV u = 0; | |
79072805 | 12667 | I32 shift; |
9e24b6e2 | 12668 | bool overflowed = FALSE; |
61f33854 | 12669 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
27da23d5 JH |
12670 | static const NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
12671 | static const char* const bases[5] = | |
12672 | { "", "binary", "", "octal", "hexadecimal" }; | |
12673 | static const char* const Bases[5] = | |
12674 | { "", "Binary", "", "Octal", "Hexadecimal" }; | |
12675 | static const char* const maxima[5] = | |
12676 | { "", | |
12677 | "0b11111111111111111111111111111111", | |
12678 | "", | |
12679 | "037777777777", | |
12680 | "0xffffffff" }; | |
bfed75c6 | 12681 | const char *base, *Base, *max; |
378cc40b | 12682 | |
02aa26ce | 12683 | /* check for hex */ |
378cc40b LW |
12684 | if (s[1] == 'x') { |
12685 | shift = 4; | |
12686 | s += 2; | |
61f33854 | 12687 | just_zero = FALSE; |
4f19785b WSI |
12688 | } else if (s[1] == 'b') { |
12689 | shift = 1; | |
12690 | s += 2; | |
61f33854 | 12691 | just_zero = FALSE; |
378cc40b | 12692 | } |
02aa26ce | 12693 | /* check for a decimal in disguise */ |
b78218b7 | 12694 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 12695 | goto decimal; |
02aa26ce | 12696 | /* so it must be octal */ |
928753ea | 12697 | else { |
378cc40b | 12698 | shift = 3; |
928753ea JH |
12699 | s++; |
12700 | } | |
12701 | ||
12702 | if (*s == '_') { | |
a2a5de95 | 12703 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12704 | "Misplaced _ in number"); |
12705 | lastub = s++; | |
12706 | } | |
9e24b6e2 JH |
12707 | |
12708 | base = bases[shift]; | |
12709 | Base = Bases[shift]; | |
12710 | max = maxima[shift]; | |
02aa26ce | 12711 | |
4f19785b | 12712 | /* read the rest of the number */ |
378cc40b | 12713 | for (;;) { |
9e24b6e2 | 12714 | /* x is used in the overflow test, |
893fe2c2 | 12715 | b is the digit we're adding on. */ |
9e24b6e2 | 12716 | UV x, b; |
55497cff | 12717 | |
378cc40b | 12718 | switch (*s) { |
02aa26ce NT |
12719 | |
12720 | /* if we don't mention it, we're done */ | |
378cc40b LW |
12721 | default: |
12722 | goto out; | |
02aa26ce | 12723 | |
928753ea | 12724 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 12725 | case '_': |
a2a5de95 NC |
12726 | if (lastub && s == lastub + 1) |
12727 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), | |
12728 | "Misplaced _ in number"); | |
928753ea | 12729 | lastub = s++; |
de3bb511 | 12730 | break; |
02aa26ce NT |
12731 | |
12732 | /* 8 and 9 are not octal */ | |
378cc40b | 12733 | case '8': case '9': |
4f19785b | 12734 | if (shift == 3) |
cea2e8a9 | 12735 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 12736 | /* FALL THROUGH */ |
02aa26ce NT |
12737 | |
12738 | /* octal digits */ | |
4f19785b | 12739 | case '2': case '3': case '4': |
378cc40b | 12740 | case '5': case '6': case '7': |
4f19785b | 12741 | if (shift == 1) |
cea2e8a9 | 12742 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
12743 | /* FALL THROUGH */ |
12744 | ||
12745 | case '0': case '1': | |
02aa26ce | 12746 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 12747 | goto digit; |
02aa26ce NT |
12748 | |
12749 | /* hex digits */ | |
378cc40b LW |
12750 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
12751 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 12752 | /* make sure they said 0x */ |
378cc40b LW |
12753 | if (shift != 4) |
12754 | goto out; | |
55497cff | 12755 | b = (*s++ & 7) + 9; |
02aa26ce NT |
12756 | |
12757 | /* Prepare to put the digit we have onto the end | |
12758 | of the number so far. We check for overflows. | |
12759 | */ | |
12760 | ||
55497cff | 12761 | digit: |
61f33854 | 12762 | just_zero = FALSE; |
9e24b6e2 JH |
12763 | if (!overflowed) { |
12764 | x = u << shift; /* make room for the digit */ | |
12765 | ||
12766 | if ((x >> shift) != u | |
12767 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
12768 | overflowed = TRUE; |
12769 | n = (NV) u; | |
9b387841 NC |
12770 | Perl_ck_warner_d(aTHX_ packWARN(WARN_OVERFLOW), |
12771 | "Integer overflow in %s number", | |
12772 | base); | |
9e24b6e2 JH |
12773 | } else |
12774 | u = x | b; /* add the digit to the end */ | |
12775 | } | |
12776 | if (overflowed) { | |
12777 | n *= nvshift[shift]; | |
12778 | /* If an NV has not enough bits in its | |
12779 | * mantissa to represent an UV this summing of | |
12780 | * small low-order numbers is a waste of time | |
12781 | * (because the NV cannot preserve the | |
12782 | * low-order bits anyway): we could just | |
12783 | * remember when did we overflow and in the | |
12784 | * end just multiply n by the right | |
12785 | * amount. */ | |
12786 | n += (NV) b; | |
55497cff | 12787 | } |
378cc40b LW |
12788 | break; |
12789 | } | |
12790 | } | |
02aa26ce NT |
12791 | |
12792 | /* if we get here, we had success: make a scalar value from | |
12793 | the number. | |
12794 | */ | |
378cc40b | 12795 | out: |
928753ea JH |
12796 | |
12797 | /* final misplaced underbar check */ | |
12798 | if (s[-1] == '_') { | |
a2a5de95 | 12799 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
12800 | } |
12801 | ||
561b68a9 | 12802 | sv = newSV(0); |
9e24b6e2 | 12803 | if (overflowed) { |
a2a5de95 NC |
12804 | if (n > 4294967295.0) |
12805 | Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE), | |
12806 | "%s number > %s non-portable", | |
12807 | Base, max); | |
9e24b6e2 JH |
12808 | sv_setnv(sv, n); |
12809 | } | |
12810 | else { | |
15041a67 | 12811 | #if UVSIZE > 4 |
a2a5de95 NC |
12812 | if (u > 0xffffffff) |
12813 | Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE), | |
12814 | "%s number > %s non-portable", | |
12815 | Base, max); | |
2cc4c2dc | 12816 | #endif |
9e24b6e2 JH |
12817 | sv_setuv(sv, u); |
12818 | } | |
61f33854 | 12819 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
bfed75c6 | 12820 | sv = new_constant(start, s - start, "integer", |
eb0d8d16 | 12821 | sv, NULL, NULL, 0); |
61f33854 | 12822 | else if (PL_hints & HINT_NEW_BINARY) |
eb0d8d16 | 12823 | sv = new_constant(start, s - start, "binary", sv, NULL, NULL, 0); |
378cc40b LW |
12824 | } |
12825 | break; | |
02aa26ce NT |
12826 | |
12827 | /* | |
12828 | handle decimal numbers. | |
12829 | we're also sent here when we read a 0 as the first digit | |
12830 | */ | |
378cc40b LW |
12831 | case '1': case '2': case '3': case '4': case '5': |
12832 | case '6': case '7': case '8': case '9': case '.': | |
12833 | decimal: | |
3280af22 NIS |
12834 | d = PL_tokenbuf; |
12835 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 12836 | floatit = FALSE; |
02aa26ce NT |
12837 | |
12838 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 12839 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 12840 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
12841 | if -w is on |
12842 | */ | |
93a17b20 | 12843 | if (*s == '_') { |
a2a5de95 NC |
12844 | if (lastub && s == lastub + 1) |
12845 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), | |
12846 | "Misplaced _ in number"); | |
928753ea | 12847 | lastub = s++; |
93a17b20 | 12848 | } |
fc36a67e | 12849 | else { |
02aa26ce | 12850 | /* check for end of fixed-length buffer */ |
fc36a67e | 12851 | if (d >= e) |
cea2e8a9 | 12852 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 12853 | /* if we're ok, copy the character */ |
378cc40b | 12854 | *d++ = *s++; |
fc36a67e | 12855 | } |
378cc40b | 12856 | } |
02aa26ce NT |
12857 | |
12858 | /* final misplaced underbar check */ | |
928753ea | 12859 | if (lastub && s == lastub + 1) { |
a2a5de95 | 12860 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 12861 | } |
02aa26ce NT |
12862 | |
12863 | /* read a decimal portion if there is one. avoid | |
12864 | 3..5 being interpreted as the number 3. followed | |
12865 | by .5 | |
12866 | */ | |
2f3197b3 | 12867 | if (*s == '.' && s[1] != '.') { |
79072805 | 12868 | floatit = TRUE; |
378cc40b | 12869 | *d++ = *s++; |
02aa26ce | 12870 | |
928753ea | 12871 | if (*s == '_') { |
a2a5de95 NC |
12872 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
12873 | "Misplaced _ in number"); | |
928753ea JH |
12874 | lastub = s; |
12875 | } | |
12876 | ||
12877 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 12878 | */ |
fc36a67e | 12879 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 12880 | /* fixed length buffer check */ |
fc36a67e | 12881 | if (d >= e) |
cea2e8a9 | 12882 | Perl_croak(aTHX_ number_too_long); |
928753ea | 12883 | if (*s == '_') { |
a2a5de95 NC |
12884 | if (lastub && s == lastub + 1) |
12885 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), | |
12886 | "Misplaced _ in number"); | |
928753ea JH |
12887 | lastub = s; |
12888 | } | |
12889 | else | |
fc36a67e | 12890 | *d++ = *s; |
378cc40b | 12891 | } |
928753ea JH |
12892 | /* fractional part ending in underbar? */ |
12893 | if (s[-1] == '_') { | |
a2a5de95 NC |
12894 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
12895 | "Misplaced _ in number"); | |
928753ea | 12896 | } |
dd629d5b GS |
12897 | if (*s == '.' && isDIGIT(s[1])) { |
12898 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 12899 | s = start; |
dd629d5b GS |
12900 | goto vstring; |
12901 | } | |
378cc40b | 12902 | } |
02aa26ce NT |
12903 | |
12904 | /* read exponent part, if present */ | |
3792a11b | 12905 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
12906 | floatit = TRUE; |
12907 | s++; | |
02aa26ce NT |
12908 | |
12909 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 12910 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 12911 | |
7fd134d9 JH |
12912 | /* stray preinitial _ */ |
12913 | if (*s == '_') { | |
a2a5de95 NC |
12914 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
12915 | "Misplaced _ in number"); | |
7fd134d9 JH |
12916 | lastub = s++; |
12917 | } | |
12918 | ||
02aa26ce | 12919 | /* allow positive or negative exponent */ |
378cc40b LW |
12920 | if (*s == '+' || *s == '-') |
12921 | *d++ = *s++; | |
02aa26ce | 12922 | |
7fd134d9 JH |
12923 | /* stray initial _ */ |
12924 | if (*s == '_') { | |
a2a5de95 NC |
12925 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), |
12926 | "Misplaced _ in number"); | |
7fd134d9 JH |
12927 | lastub = s++; |
12928 | } | |
12929 | ||
7fd134d9 JH |
12930 | /* read digits of exponent */ |
12931 | while (isDIGIT(*s) || *s == '_') { | |
12932 | if (isDIGIT(*s)) { | |
12933 | if (d >= e) | |
12934 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 12935 | *d++ = *s++; |
7fd134d9 JH |
12936 | } |
12937 | else { | |
041457d9 | 12938 | if (((lastub && s == lastub + 1) || |
a2a5de95 NC |
12939 | (!isDIGIT(s[1]) && s[1] != '_'))) |
12940 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), | |
12941 | "Misplaced _ in number"); | |
b3b48e3e | 12942 | lastub = s++; |
7fd134d9 | 12943 | } |
7fd134d9 | 12944 | } |
378cc40b | 12945 | } |
02aa26ce | 12946 | |
02aa26ce NT |
12947 | |
12948 | /* make an sv from the string */ | |
561b68a9 | 12949 | sv = newSV(0); |
097ee67d | 12950 | |
0b7fceb9 | 12951 | /* |
58bb9ec3 NC |
12952 | We try to do an integer conversion first if no characters |
12953 | indicating "float" have been found. | |
0b7fceb9 MU |
12954 | */ |
12955 | ||
12956 | if (!floatit) { | |
58bb9ec3 | 12957 | UV uv; |
6136c704 | 12958 | const int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); |
58bb9ec3 NC |
12959 | |
12960 | if (flags == IS_NUMBER_IN_UV) { | |
12961 | if (uv <= IV_MAX) | |
86554af2 | 12962 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 12963 | else |
c239479b | 12964 | sv_setuv(sv, uv); |
58bb9ec3 NC |
12965 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
12966 | if (uv <= (UV) IV_MIN) | |
12967 | sv_setiv(sv, -(IV)uv); | |
12968 | else | |
12969 | floatit = TRUE; | |
12970 | } else | |
12971 | floatit = TRUE; | |
12972 | } | |
0b7fceb9 | 12973 | if (floatit) { |
58bb9ec3 NC |
12974 | /* terminate the string */ |
12975 | *d = '\0'; | |
86554af2 JH |
12976 | nv = Atof(PL_tokenbuf); |
12977 | sv_setnv(sv, nv); | |
12978 | } | |
86554af2 | 12979 | |
eb0d8d16 NC |
12980 | if ( floatit |
12981 | ? (PL_hints & HINT_NEW_FLOAT) : (PL_hints & HINT_NEW_INTEGER) ) { | |
12982 | const char *const key = floatit ? "float" : "integer"; | |
12983 | const STRLEN keylen = floatit ? 5 : 7; | |
12984 | sv = S_new_constant(aTHX_ PL_tokenbuf, d - PL_tokenbuf, | |
12985 | key, keylen, sv, NULL, NULL, 0); | |
12986 | } | |
378cc40b | 12987 | break; |
0b7fceb9 | 12988 | |
e312add1 | 12989 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 12990 | case 'v': |
dd629d5b | 12991 | vstring: |
561b68a9 | 12992 | sv = newSV(5); /* preallocate storage space */ |
65b06e02 | 12993 | s = scan_vstring(s, PL_bufend, sv); |
a7cb1f99 | 12994 | break; |
79072805 | 12995 | } |
a687059c | 12996 | |
02aa26ce NT |
12997 | /* make the op for the constant and return */ |
12998 | ||
a86a20aa | 12999 | if (sv) |
b73d6f50 | 13000 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 13001 | else |
5f66b61c | 13002 | lvalp->opval = NULL; |
a687059c | 13003 | |
73d840c0 | 13004 | return (char *)s; |
378cc40b LW |
13005 | } |
13006 | ||
76e3520e | 13007 | STATIC char * |
cea2e8a9 | 13008 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 13009 | { |
97aff369 | 13010 | dVAR; |
79072805 | 13011 | register char *eol; |
378cc40b | 13012 | register char *t; |
6136c704 | 13013 | SV * const stuff = newSVpvs(""); |
79072805 | 13014 | bool needargs = FALSE; |
c5ee2135 | 13015 | bool eofmt = FALSE; |
5db06880 NC |
13016 | #ifdef PERL_MAD |
13017 | char *tokenstart = s; | |
4f61fd4b JC |
13018 | SV* savewhite = NULL; |
13019 | ||
5db06880 | 13020 | if (PL_madskills) { |
cd81e915 NC |
13021 | savewhite = PL_thiswhite; |
13022 | PL_thiswhite = 0; | |
5db06880 NC |
13023 | } |
13024 | #endif | |
378cc40b | 13025 | |
7918f24d NC |
13026 | PERL_ARGS_ASSERT_SCAN_FORMLINE; |
13027 | ||
79072805 | 13028 | while (!needargs) { |
a1b95068 | 13029 | if (*s == '.') { |
c35e046a | 13030 | t = s+1; |
51882d45 | 13031 | #ifdef PERL_STRICT_CR |
c35e046a AL |
13032 | while (SPACE_OR_TAB(*t)) |
13033 | t++; | |
51882d45 | 13034 | #else |
c35e046a AL |
13035 | while (SPACE_OR_TAB(*t) || *t == '\r') |
13036 | t++; | |
51882d45 | 13037 | #endif |
c5ee2135 WL |
13038 | if (*t == '\n' || t == PL_bufend) { |
13039 | eofmt = TRUE; | |
79072805 | 13040 | break; |
c5ee2135 | 13041 | } |
79072805 | 13042 | } |
3280af22 | 13043 | if (PL_in_eval && !PL_rsfp) { |
07409e01 | 13044 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 13045 | if (!eol++) |
3280af22 | 13046 | eol = PL_bufend; |
0f85fab0 LW |
13047 | } |
13048 | else | |
3280af22 | 13049 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 13050 | if (*s != '#') { |
a0d0e21e LW |
13051 | for (t = s; t < eol; t++) { |
13052 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
13053 | needargs = FALSE; | |
13054 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 13055 | } |
a0d0e21e LW |
13056 | if (*t == '@' || *t == '^') |
13057 | needargs = TRUE; | |
378cc40b | 13058 | } |
7121b347 MG |
13059 | if (eol > s) { |
13060 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 13061 | #ifndef PERL_STRICT_CR |
7121b347 MG |
13062 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
13063 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
13064 | end[-2] = '\n'; | |
13065 | end[-1] = '\0'; | |
b162af07 | 13066 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 13067 | } |
2dc4c65b | 13068 | #endif |
7121b347 MG |
13069 | } |
13070 | else | |
13071 | break; | |
79072805 | 13072 | } |
95a20fc0 | 13073 | s = (char*)eol; |
3280af22 | 13074 | if (PL_rsfp) { |
f0e67a1d | 13075 | bool got_some; |
5db06880 NC |
13076 | #ifdef PERL_MAD |
13077 | if (PL_madskills) { | |
cd81e915 NC |
13078 | if (PL_thistoken) |
13079 | sv_catpvn(PL_thistoken, tokenstart, PL_bufend - tokenstart); | |
5db06880 | 13080 | else |
cd81e915 | 13081 | PL_thistoken = newSVpvn(tokenstart, PL_bufend - tokenstart); |
5db06880 NC |
13082 | } |
13083 | #endif | |
f0e67a1d Z |
13084 | PL_bufptr = PL_bufend; |
13085 | CopLINE_inc(PL_curcop); | |
13086 | got_some = lex_next_chunk(0); | |
13087 | CopLINE_dec(PL_curcop); | |
13088 | s = PL_bufptr; | |
5db06880 | 13089 | #ifdef PERL_MAD |
f0e67a1d | 13090 | tokenstart = PL_bufptr; |
5db06880 | 13091 | #endif |
f0e67a1d | 13092 | if (!got_some) |
378cc40b | 13093 | break; |
378cc40b | 13094 | } |
463ee0b2 | 13095 | incline(s); |
79072805 | 13096 | } |
a0d0e21e LW |
13097 | enough: |
13098 | if (SvCUR(stuff)) { | |
3280af22 | 13099 | PL_expect = XTERM; |
79072805 | 13100 | if (needargs) { |
3280af22 | 13101 | PL_lex_state = LEX_NORMAL; |
cd81e915 | 13102 | start_force(PL_curforce); |
9ded7720 | 13103 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 LW |
13104 | force_next(','); |
13105 | } | |
a0d0e21e | 13106 | else |
3280af22 | 13107 | PL_lex_state = LEX_FORMLINE; |
1bd51a4c | 13108 | if (!IN_BYTES) { |
95a20fc0 | 13109 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
1bd51a4c IH |
13110 | SvUTF8_on(stuff); |
13111 | else if (PL_encoding) | |
13112 | sv_recode_to_utf8(stuff, PL_encoding); | |
13113 | } | |
cd81e915 | 13114 | start_force(PL_curforce); |
9ded7720 | 13115 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 13116 | force_next(THING); |
cd81e915 | 13117 | start_force(PL_curforce); |
9ded7720 | 13118 | NEXTVAL_NEXTTOKE.ival = OP_FORMLINE; |
79072805 | 13119 | force_next(LSTOP); |
378cc40b | 13120 | } |
79072805 | 13121 | else { |
8990e307 | 13122 | SvREFCNT_dec(stuff); |
c5ee2135 WL |
13123 | if (eofmt) |
13124 | PL_lex_formbrack = 0; | |
3280af22 | 13125 | PL_bufptr = s; |
79072805 | 13126 | } |
5db06880 NC |
13127 | #ifdef PERL_MAD |
13128 | if (PL_madskills) { | |
cd81e915 NC |
13129 | if (PL_thistoken) |
13130 | sv_catpvn(PL_thistoken, tokenstart, s - tokenstart); | |
5db06880 | 13131 | else |
cd81e915 NC |
13132 | PL_thistoken = newSVpvn(tokenstart, s - tokenstart); |
13133 | PL_thiswhite = savewhite; | |
5db06880 NC |
13134 | } |
13135 | #endif | |
79072805 | 13136 | return s; |
378cc40b | 13137 | } |
a687059c | 13138 | |
ba6d6ac9 | 13139 | I32 |
864dbfa3 | 13140 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 13141 | { |
97aff369 | 13142 | dVAR; |
a3b680e6 | 13143 | const I32 oldsavestack_ix = PL_savestack_ix; |
6136c704 | 13144 | CV* const outsidecv = PL_compcv; |
8990e307 | 13145 | |
3280af22 NIS |
13146 | if (PL_compcv) { |
13147 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 13148 | } |
7766f137 | 13149 | SAVEI32(PL_subline); |
3280af22 | 13150 | save_item(PL_subname); |
3280af22 | 13151 | SAVESPTR(PL_compcv); |
3280af22 | 13152 | |
ea726b52 | 13153 | PL_compcv = MUTABLE_CV(newSV_type(is_format ? SVt_PVFM : SVt_PVCV)); |
3280af22 NIS |
13154 | CvFLAGS(PL_compcv) |= flags; |
13155 | ||
57843af0 | 13156 | PL_subline = CopLINE(PL_curcop); |
dd2155a4 | 13157 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
ea726b52 | 13158 | CvOUTSIDE(PL_compcv) = MUTABLE_CV(SvREFCNT_inc_simple(outsidecv)); |
a3985cdc | 13159 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
748a9306 | 13160 | |
8990e307 LW |
13161 | return oldsavestack_ix; |
13162 | } | |
13163 | ||
084592ab CN |
13164 | #ifdef __SC__ |
13165 | #pragma segment Perl_yylex | |
13166 | #endif | |
af41e527 NC |
13167 | static int |
13168 | S_yywarn(pTHX_ const char *const s) | |
8990e307 | 13169 | { |
97aff369 | 13170 | dVAR; |
7918f24d NC |
13171 | |
13172 | PERL_ARGS_ASSERT_YYWARN; | |
13173 | ||
faef0170 | 13174 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 13175 | yyerror(s); |
faef0170 | 13176 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 13177 | return 0; |
8990e307 LW |
13178 | } |
13179 | ||
13180 | int | |
15f169a1 | 13181 | Perl_yyerror(pTHX_ const char *const s) |
463ee0b2 | 13182 | { |
97aff369 | 13183 | dVAR; |
bfed75c6 AL |
13184 | const char *where = NULL; |
13185 | const char *context = NULL; | |
68dc0745 | 13186 | int contlen = -1; |
46fc3d4c | 13187 | SV *msg; |
5912531f | 13188 | int yychar = PL_parser->yychar; |
463ee0b2 | 13189 | |
7918f24d NC |
13190 | PERL_ARGS_ASSERT_YYERROR; |
13191 | ||
3280af22 | 13192 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 13193 | where = "at EOF"; |
8bcfe651 TM |
13194 | else if (PL_oldoldbufptr && PL_bufptr > PL_oldoldbufptr && |
13195 | PL_bufptr - PL_oldoldbufptr < 200 && PL_oldoldbufptr != PL_oldbufptr && | |
13196 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
13197 | /* |
13198 | Only for NetWare: | |
13199 | The code below is removed for NetWare because it abends/crashes on NetWare | |
13200 | when the script has error such as not having the closing quotes like: | |
13201 | if ($var eq "value) | |
13202 | Checking of white spaces is anyway done in NetWare code. | |
13203 | */ | |
13204 | #ifndef NETWARE | |
3280af22 NIS |
13205 | while (isSPACE(*PL_oldoldbufptr)) |
13206 | PL_oldoldbufptr++; | |
f355267c | 13207 | #endif |
3280af22 NIS |
13208 | context = PL_oldoldbufptr; |
13209 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 13210 | } |
8bcfe651 TM |
13211 | else if (PL_oldbufptr && PL_bufptr > PL_oldbufptr && |
13212 | PL_bufptr - PL_oldbufptr < 200 && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
13213 | /* |
13214 | Only for NetWare: | |
13215 | The code below is removed for NetWare because it abends/crashes on NetWare | |
13216 | when the script has error such as not having the closing quotes like: | |
13217 | if ($var eq "value) | |
13218 | Checking of white spaces is anyway done in NetWare code. | |
13219 | */ | |
13220 | #ifndef NETWARE | |
3280af22 NIS |
13221 | while (isSPACE(*PL_oldbufptr)) |
13222 | PL_oldbufptr++; | |
f355267c | 13223 | #endif |
3280af22 NIS |
13224 | context = PL_oldbufptr; |
13225 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
13226 | } |
13227 | else if (yychar > 255) | |
68dc0745 | 13228 | where = "next token ???"; |
12fbd33b | 13229 | else if (yychar == -2) { /* YYEMPTY */ |
3280af22 NIS |
13230 | if (PL_lex_state == LEX_NORMAL || |
13231 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 13232 | where = "at end of line"; |
3280af22 | 13233 | else if (PL_lex_inpat) |
68dc0745 | 13234 | where = "within pattern"; |
463ee0b2 | 13235 | else |
68dc0745 | 13236 | where = "within string"; |
463ee0b2 | 13237 | } |
46fc3d4c | 13238 | else { |
84bafc02 | 13239 | SV * const where_sv = newSVpvs_flags("next char ", SVs_TEMP); |
46fc3d4c | 13240 | if (yychar < 32) |
cea2e8a9 | 13241 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
5e7aa789 | 13242 | else if (isPRINT_LC(yychar)) { |
88c9ea1e | 13243 | const char string = yychar; |
5e7aa789 NC |
13244 | sv_catpvn(where_sv, &string, 1); |
13245 | } | |
463ee0b2 | 13246 | else |
cea2e8a9 | 13247 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
95a20fc0 | 13248 | where = SvPVX_const(where_sv); |
463ee0b2 | 13249 | } |
46fc3d4c | 13250 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 13251 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 13252 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 13253 | if (context) |
cea2e8a9 | 13254 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 13255 | else |
cea2e8a9 | 13256 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 13257 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 13258 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 13259 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 13260 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 13261 | PL_multi_end = 0; |
a0d0e21e | 13262 | } |
500960a6 | 13263 | if (PL_in_eval & EVAL_WARNONLY) { |
9b387841 | 13264 | Perl_ck_warner_d(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, SVfARG(msg)); |
500960a6 | 13265 | } |
463ee0b2 | 13266 | else |
5a844595 | 13267 | qerror(msg); |
c7d6bfb2 GS |
13268 | if (PL_error_count >= 10) { |
13269 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 13270 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
be2597df | 13271 | SVfARG(ERRSV), OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
13272 | else |
13273 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 13274 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 13275 | } |
3280af22 | 13276 | PL_in_my = 0; |
5c284bb0 | 13277 | PL_in_my_stash = NULL; |
463ee0b2 LW |
13278 | return 0; |
13279 | } | |
084592ab CN |
13280 | #ifdef __SC__ |
13281 | #pragma segment Main | |
13282 | #endif | |
4e35701f | 13283 | |
b250498f | 13284 | STATIC char* |
3ae08724 | 13285 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 13286 | { |
97aff369 | 13287 | dVAR; |
f54cb97a | 13288 | const STRLEN slen = SvCUR(PL_linestr); |
7918f24d NC |
13289 | |
13290 | PERL_ARGS_ASSERT_SWALLOW_BOM; | |
13291 | ||
7aa207d6 | 13292 | switch (s[0]) { |
4e553d73 NIS |
13293 | case 0xFF: |
13294 | if (s[1] == 0xFE) { | |
ee6ba15d | 13295 | /* UTF-16 little-endian? (or UTF-32LE?) */ |
3ae08724 | 13296 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
ee6ba15d | 13297 | Perl_croak(aTHX_ "Unsupported script encoding UTF-32LE"); |
01ec43d0 | 13298 | #ifndef PERL_NO_UTF16_FILTER |
ee6ba15d | 13299 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (BOM)\n"); |
3ae08724 | 13300 | s += 2; |
dea0fc0b | 13301 | if (PL_bufend > (char*)s) { |
81a923f4 | 13302 | s = add_utf16_textfilter(s, TRUE); |
dea0fc0b | 13303 | } |
b250498f | 13304 | #else |
ee6ba15d | 13305 | Perl_croak(aTHX_ "Unsupported script encoding UTF-16LE"); |
b250498f | 13306 | #endif |
01ec43d0 GS |
13307 | } |
13308 | break; | |
78ae23f5 | 13309 | case 0xFE: |
7aa207d6 | 13310 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 13311 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 13312 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b JH |
13313 | s += 2; |
13314 | if (PL_bufend > (char *)s) { | |
81a923f4 | 13315 | s = add_utf16_textfilter(s, FALSE); |
dea0fc0b | 13316 | } |
b250498f | 13317 | #else |
ee6ba15d | 13318 | Perl_croak(aTHX_ "Unsupported script encoding UTF-16BE"); |
b250498f | 13319 | #endif |
01ec43d0 GS |
13320 | } |
13321 | break; | |
3ae08724 GS |
13322 | case 0xEF: |
13323 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
7aa207d6 | 13324 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
13325 | s += 3; /* UTF-8 */ |
13326 | } | |
13327 | break; | |
13328 | case 0: | |
7aa207d6 JH |
13329 | if (slen > 3) { |
13330 | if (s[1] == 0) { | |
13331 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
13332 | /* UTF-32 big-endian */ | |
ee6ba15d | 13333 | Perl_croak(aTHX_ "Unsupported script encoding UTF-32BE"); |
7aa207d6 JH |
13334 | } |
13335 | } | |
13336 | else if (s[2] == 0 && s[3] != 0) { | |
13337 | /* Leading bytes | |
13338 | * 00 xx 00 xx | |
13339 | * are a good indicator of UTF-16BE. */ | |
ee6ba15d | 13340 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 13341 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); |
ee6ba15d EB |
13342 | s = add_utf16_textfilter(s, FALSE); |
13343 | #else | |
13344 | Perl_croak(aTHX_ "Unsupported script encoding UTF-16BE"); | |
13345 | #endif | |
7aa207d6 | 13346 | } |
01ec43d0 | 13347 | } |
e294cc5d JH |
13348 | #ifdef EBCDIC |
13349 | case 0xDD: | |
13350 | if (slen > 3 && s[1] == 0x73 && s[2] == 0x66 && s[3] == 0x73) { | |
13351 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); | |
13352 | s += 4; /* UTF-8 */ | |
13353 | } | |
13354 | break; | |
13355 | #endif | |
13356 | ||
7aa207d6 JH |
13357 | default: |
13358 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
13359 | /* Leading bytes | |
13360 | * xx 00 xx 00 | |
13361 | * are a good indicator of UTF-16LE. */ | |
ee6ba15d | 13362 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 13363 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); |
81a923f4 | 13364 | s = add_utf16_textfilter(s, TRUE); |
ee6ba15d EB |
13365 | #else |
13366 | Perl_croak(aTHX_ "Unsupported script encoding UTF-16LE"); | |
13367 | #endif | |
7aa207d6 | 13368 | } |
01ec43d0 | 13369 | } |
b8f84bb2 | 13370 | return (char*)s; |
b250498f | 13371 | } |
4755096e | 13372 | |
6e3aabd6 GS |
13373 | |
13374 | #ifndef PERL_NO_UTF16_FILTER | |
13375 | static I32 | |
a28af015 | 13376 | S_utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 13377 | { |
97aff369 | 13378 | dVAR; |
f3040f2c | 13379 | SV *const filter = FILTER_DATA(idx); |
2a773401 NC |
13380 | /* We re-use this each time round, throwing the contents away before we |
13381 | return. */ | |
2a773401 | 13382 | SV *const utf16_buffer = MUTABLE_SV(IoTOP_GV(filter)); |
f3040f2c | 13383 | SV *const utf8_buffer = filter; |
c28d6105 | 13384 | IV status = IoPAGE(filter); |
eda4663d | 13385 | const bool reverse = (bool) IoLINES(filter); |
d2d1d4de | 13386 | I32 retval; |
c8b0cbae NC |
13387 | |
13388 | /* As we're automatically added, at the lowest level, and hence only called | |
13389 | from this file, we can be sure that we're not called in block mode. Hence | |
13390 | don't bother writing code to deal with block mode. */ | |
13391 | if (maxlen) { | |
13392 | Perl_croak(aTHX_ "panic: utf16_textfilter called in block mode (for %d characters)", maxlen); | |
13393 | } | |
c28d6105 NC |
13394 | if (status < 0) { |
13395 | Perl_croak(aTHX_ "panic: utf16_textfilter called after error (status=%"IVdf")", status); | |
13396 | } | |
1de9afcd | 13397 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
c28d6105 | 13398 | "utf16_textfilter(%p,%ce): idx=%d maxlen=%d status=%"IVdf" utf16=%"UVuf" utf8=%"UVuf"\n", |
a28af015 | 13399 | FPTR2DPTR(void *, S_utf16_textfilter), |
c28d6105 NC |
13400 | reverse ? 'l' : 'b', idx, maxlen, status, |
13401 | (UV)SvCUR(utf16_buffer), (UV)SvCUR(utf8_buffer))); | |
13402 | ||
13403 | while (1) { | |
13404 | STRLEN chars; | |
13405 | STRLEN have; | |
dea0fc0b | 13406 | I32 newlen; |
2a773401 | 13407 | U8 *end; |
c28d6105 NC |
13408 | /* First, look in our buffer of existing UTF-8 data: */ |
13409 | char *nl = (char *)memchr(SvPVX(utf8_buffer), '\n', SvCUR(utf8_buffer)); | |
13410 | ||
13411 | if (nl) { | |
13412 | ++nl; | |
13413 | } else if (status == 0) { | |
13414 | /* EOF */ | |
13415 | IoPAGE(filter) = 0; | |
13416 | nl = SvEND(utf8_buffer); | |
13417 | } | |
13418 | if (nl) { | |
d2d1d4de NC |
13419 | STRLEN got = nl - SvPVX(utf8_buffer); |
13420 | /* Did we have anything to append? */ | |
13421 | retval = got != 0; | |
13422 | sv_catpvn(sv, SvPVX(utf8_buffer), got); | |
c28d6105 NC |
13423 | /* Everything else in this code works just fine if SVp_POK isn't |
13424 | set. This, however, needs it, and we need it to work, else | |
13425 | we loop infinitely because the buffer is never consumed. */ | |
13426 | sv_chop(utf8_buffer, nl); | |
13427 | break; | |
13428 | } | |
ba77e4cc | 13429 | |
c28d6105 NC |
13430 | /* OK, not a complete line there, so need to read some more UTF-16. |
13431 | Read an extra octect if the buffer currently has an odd number. */ | |
ba77e4cc NC |
13432 | while (1) { |
13433 | if (status <= 0) | |
13434 | break; | |
13435 | if (SvCUR(utf16_buffer) >= 2) { | |
13436 | /* Location of the high octet of the last complete code point. | |
13437 | Gosh, UTF-16 is a pain. All the benefits of variable length, | |
13438 | *coupled* with all the benefits of partial reads and | |
13439 | endianness. */ | |
13440 | const U8 *const last_hi = (U8*)SvPVX(utf16_buffer) | |
13441 | + ((SvCUR(utf16_buffer) & ~1) - (reverse ? 1 : 2)); | |
13442 | ||
13443 | if (*last_hi < 0xd8 || *last_hi > 0xdb) { | |
13444 | break; | |
13445 | } | |
13446 | ||
13447 | /* We have the first half of a surrogate. Read more. */ | |
13448 | DEBUG_P(PerlIO_printf(Perl_debug_log, "utf16_textfilter partial surrogate detected at %p\n", last_hi)); | |
13449 | } | |
c28d6105 | 13450 | |
c28d6105 NC |
13451 | status = FILTER_READ(idx + 1, utf16_buffer, |
13452 | 160 + (SvCUR(utf16_buffer) & 1)); | |
13453 | DEBUG_P(PerlIO_printf(Perl_debug_log, "utf16_textfilter status=%"IVdf" SvCUR(sv)=%"UVuf"\n", status, (UV)SvCUR(utf16_buffer))); | |
ba77e4cc | 13454 | DEBUG_P({ sv_dump(utf16_buffer); sv_dump(utf8_buffer);}); |
c28d6105 NC |
13455 | if (status < 0) { |
13456 | /* Error */ | |
13457 | IoPAGE(filter) = status; | |
13458 | return status; | |
13459 | } | |
13460 | } | |
13461 | ||
13462 | chars = SvCUR(utf16_buffer) >> 1; | |
13463 | have = SvCUR(utf8_buffer); | |
13464 | SvGROW(utf8_buffer, have + chars * 3 + 1); | |
2a773401 | 13465 | |
aa6dbd60 | 13466 | if (reverse) { |
c28d6105 NC |
13467 | end = utf16_to_utf8_reversed((U8*)SvPVX(utf16_buffer), |
13468 | (U8*)SvPVX_const(utf8_buffer) + have, | |
13469 | chars * 2, &newlen); | |
aa6dbd60 | 13470 | } else { |
2a773401 | 13471 | end = utf16_to_utf8((U8*)SvPVX(utf16_buffer), |
c28d6105 NC |
13472 | (U8*)SvPVX_const(utf8_buffer) + have, |
13473 | chars * 2, &newlen); | |
2a773401 | 13474 | } |
c28d6105 | 13475 | SvCUR_set(utf8_buffer, have + newlen); |
2a773401 | 13476 | *end = '\0'; |
c28d6105 | 13477 | |
e07286ed NC |
13478 | /* No need to keep this SV "well-formed" with a '\0' after the end, as |
13479 | it's private to us, and utf16_to_utf8{,reversed} take a | |
13480 | (pointer,length) pair, rather than a NUL-terminated string. */ | |
13481 | if(SvCUR(utf16_buffer) & 1) { | |
13482 | *SvPVX(utf16_buffer) = SvEND(utf16_buffer)[-1]; | |
13483 | SvCUR_set(utf16_buffer, 1); | |
13484 | } else { | |
13485 | SvCUR_set(utf16_buffer, 0); | |
13486 | } | |
2a773401 | 13487 | } |
c28d6105 NC |
13488 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
13489 | "utf16_textfilter: returns, status=%"IVdf" utf16=%"UVuf" utf8=%"UVuf"\n", | |
13490 | status, | |
13491 | (UV)SvCUR(utf16_buffer), (UV)SvCUR(utf8_buffer))); | |
13492 | DEBUG_P({ sv_dump(utf8_buffer); sv_dump(sv);}); | |
d2d1d4de | 13493 | return retval; |
6e3aabd6 | 13494 | } |
81a923f4 NC |
13495 | |
13496 | static U8 * | |
13497 | S_add_utf16_textfilter(pTHX_ U8 *const s, bool reversed) | |
13498 | { | |
2a773401 | 13499 | SV *filter = filter_add(S_utf16_textfilter, NULL); |
81a923f4 | 13500 | |
c28d6105 | 13501 | IoTOP_GV(filter) = MUTABLE_GV(newSVpvn((char *)s, PL_bufend - (char*)s)); |
f3040f2c | 13502 | sv_setpvs(filter, ""); |
2a773401 | 13503 | IoLINES(filter) = reversed; |
c28d6105 NC |
13504 | IoPAGE(filter) = 1; /* Not EOF */ |
13505 | ||
13506 | /* Sadly, we have to return a valid pointer, come what may, so we have to | |
13507 | ignore any error return from this. */ | |
13508 | SvCUR_set(PL_linestr, 0); | |
13509 | if (FILTER_READ(0, PL_linestr, 0)) { | |
13510 | SvUTF8_on(PL_linestr); | |
81a923f4 | 13511 | } else { |
c28d6105 | 13512 | SvUTF8_on(PL_linestr); |
81a923f4 | 13513 | } |
c28d6105 | 13514 | PL_bufend = SvEND(PL_linestr); |
81a923f4 NC |
13515 | return (U8*)SvPVX(PL_linestr); |
13516 | } | |
6e3aabd6 | 13517 | #endif |
9f4817db | 13518 | |
f333445c JP |
13519 | /* |
13520 | Returns a pointer to the next character after the parsed | |
13521 | vstring, as well as updating the passed in sv. | |
13522 | ||
13523 | Function must be called like | |
13524 | ||
561b68a9 | 13525 | sv = newSV(5); |
65b06e02 | 13526 | s = scan_vstring(s,e,sv); |
f333445c | 13527 | |
65b06e02 | 13528 | where s and e are the start and end of the string. |
f333445c JP |
13529 | The sv should already be large enough to store the vstring |
13530 | passed in, for performance reasons. | |
13531 | ||
13532 | */ | |
13533 | ||
13534 | char * | |
15f169a1 | 13535 | Perl_scan_vstring(pTHX_ const char *s, const char *const e, SV *sv) |
f333445c | 13536 | { |
97aff369 | 13537 | dVAR; |
bfed75c6 AL |
13538 | const char *pos = s; |
13539 | const char *start = s; | |
7918f24d NC |
13540 | |
13541 | PERL_ARGS_ASSERT_SCAN_VSTRING; | |
13542 | ||
f333445c | 13543 | if (*pos == 'v') pos++; /* get past 'v' */ |
65b06e02 | 13544 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
3e884cbf | 13545 | pos++; |
f333445c JP |
13546 | if ( *pos != '.') { |
13547 | /* this may not be a v-string if followed by => */ | |
bfed75c6 | 13548 | const char *next = pos; |
65b06e02 | 13549 | while (next < e && isSPACE(*next)) |
8fc7bb1c | 13550 | ++next; |
65b06e02 | 13551 | if ((e - next) >= 2 && *next == '=' && next[1] == '>' ) { |
f333445c JP |
13552 | /* return string not v-string */ |
13553 | sv_setpvn(sv,(char *)s,pos-s); | |
73d840c0 | 13554 | return (char *)pos; |
f333445c JP |
13555 | } |
13556 | } | |
13557 | ||
13558 | if (!isALPHA(*pos)) { | |
89ebb4a3 | 13559 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
f333445c | 13560 | |
d4c19fe8 AL |
13561 | if (*s == 'v') |
13562 | s++; /* get past 'v' */ | |
f333445c | 13563 | |
76f68e9b | 13564 | sv_setpvs(sv, ""); |
f333445c JP |
13565 | |
13566 | for (;;) { | |
d4c19fe8 | 13567 | /* this is atoi() that tolerates underscores */ |
0bd48802 AL |
13568 | U8 *tmpend; |
13569 | UV rev = 0; | |
d4c19fe8 AL |
13570 | const char *end = pos; |
13571 | UV mult = 1; | |
13572 | while (--end >= s) { | |
13573 | if (*end != '_') { | |
13574 | const UV orev = rev; | |
f333445c JP |
13575 | rev += (*end - '0') * mult; |
13576 | mult *= 10; | |
9b387841 NC |
13577 | if (orev > rev) |
13578 | Perl_ck_warner_d(aTHX_ packWARN(WARN_OVERFLOW), | |
13579 | "Integer overflow in decimal number"); | |
f333445c JP |
13580 | } |
13581 | } | |
13582 | #ifdef EBCDIC | |
13583 | if (rev > 0x7FFFFFFF) | |
13584 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
13585 | #endif | |
13586 | /* Append native character for the rev point */ | |
13587 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
13588 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
13589 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
13590 | SvUTF8_on(sv); | |
65b06e02 | 13591 | if (pos + 1 < e && *pos == '.' && isDIGIT(pos[1])) |
f333445c JP |
13592 | s = ++pos; |
13593 | else { | |
13594 | s = pos; | |
13595 | break; | |
13596 | } | |
65b06e02 | 13597 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
f333445c JP |
13598 | pos++; |
13599 | } | |
13600 | SvPOK_on(sv); | |
13601 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
13602 | SvRMAGICAL_on(sv); | |
13603 | } | |
73d840c0 | 13604 | return (char *)s; |
f333445c JP |
13605 | } |
13606 | ||
88e1f1a2 JV |
13607 | int |
13608 | Perl_keyword_plugin_standard(pTHX_ | |
13609 | char *keyword_ptr, STRLEN keyword_len, OP **op_ptr) | |
13610 | { | |
13611 | PERL_ARGS_ASSERT_KEYWORD_PLUGIN_STANDARD; | |
13612 | PERL_UNUSED_CONTEXT; | |
13613 | PERL_UNUSED_ARG(keyword_ptr); | |
13614 | PERL_UNUSED_ARG(keyword_len); | |
13615 | PERL_UNUSED_ARG(op_ptr); | |
13616 | return KEYWORD_PLUGIN_DECLINE; | |
13617 | } | |
13618 | ||
1da4ca5f NC |
13619 | /* |
13620 | * Local variables: | |
13621 | * c-indentation-style: bsd | |
13622 | * c-basic-offset: 4 | |
13623 | * indent-tabs-mode: t | |
13624 | * End: | |
13625 | * | |
37442d52 RGS |
13626 | * ex: set ts=8 sts=4 sw=4 noet: |
13627 | */ |