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 | ||
378cc40b | 24 | #include "EXTERN.h" |
864dbfa3 | 25 | #define PERL_IN_TOKE_C |
378cc40b | 26 | #include "perl.h" |
378cc40b | 27 | |
eb0d8d16 NC |
28 | #define new_constant(a,b,c,d,e,f,g) \ |
29 | S_new_constant(aTHX_ a,b,STR_WITH_LEN(c),d,e,f, g) | |
30 | ||
6154021b | 31 | #define pl_yylval (PL_parser->yylval) |
d3b6f988 | 32 | |
acdf0a21 DM |
33 | /* YYINITDEPTH -- initial size of the parser's stacks. */ |
34 | #define YYINITDEPTH 200 | |
35 | ||
199e78b7 DM |
36 | /* XXX temporary backwards compatibility */ |
37 | #define PL_lex_brackets (PL_parser->lex_brackets) | |
38 | #define PL_lex_brackstack (PL_parser->lex_brackstack) | |
39 | #define PL_lex_casemods (PL_parser->lex_casemods) | |
40 | #define PL_lex_casestack (PL_parser->lex_casestack) | |
41 | #define PL_lex_defer (PL_parser->lex_defer) | |
42 | #define PL_lex_dojoin (PL_parser->lex_dojoin) | |
43 | #define PL_lex_expect (PL_parser->lex_expect) | |
44 | #define PL_lex_formbrack (PL_parser->lex_formbrack) | |
45 | #define PL_lex_inpat (PL_parser->lex_inpat) | |
46 | #define PL_lex_inwhat (PL_parser->lex_inwhat) | |
47 | #define PL_lex_op (PL_parser->lex_op) | |
48 | #define PL_lex_repl (PL_parser->lex_repl) | |
49 | #define PL_lex_starts (PL_parser->lex_starts) | |
50 | #define PL_lex_stuff (PL_parser->lex_stuff) | |
51 | #define PL_multi_start (PL_parser->multi_start) | |
52 | #define PL_multi_open (PL_parser->multi_open) | |
53 | #define PL_multi_close (PL_parser->multi_close) | |
54 | #define PL_pending_ident (PL_parser->pending_ident) | |
55 | #define PL_preambled (PL_parser->preambled) | |
56 | #define PL_sublex_info (PL_parser->sublex_info) | |
bdc0bf6f | 57 | #define PL_linestr (PL_parser->linestr) |
c2598295 DM |
58 | #define PL_expect (PL_parser->expect) |
59 | #define PL_copline (PL_parser->copline) | |
f06b5848 DM |
60 | #define PL_bufptr (PL_parser->bufptr) |
61 | #define PL_oldbufptr (PL_parser->oldbufptr) | |
62 | #define PL_oldoldbufptr (PL_parser->oldoldbufptr) | |
63 | #define PL_linestart (PL_parser->linestart) | |
64 | #define PL_bufend (PL_parser->bufend) | |
65 | #define PL_last_uni (PL_parser->last_uni) | |
66 | #define PL_last_lop (PL_parser->last_lop) | |
67 | #define PL_last_lop_op (PL_parser->last_lop_op) | |
bc177e6b | 68 | #define PL_lex_state (PL_parser->lex_state) |
2f9285f8 | 69 | #define PL_rsfp (PL_parser->rsfp) |
5486870f | 70 | #define PL_rsfp_filters (PL_parser->rsfp_filters) |
12bd6ede DM |
71 | #define PL_in_my (PL_parser->in_my) |
72 | #define PL_in_my_stash (PL_parser->in_my_stash) | |
14047fc9 | 73 | #define PL_tokenbuf (PL_parser->tokenbuf) |
670a9cb2 | 74 | #define PL_multi_end (PL_parser->multi_end) |
13765c85 | 75 | #define PL_error_count (PL_parser->error_count) |
199e78b7 DM |
76 | |
77 | #ifdef PERL_MAD | |
78 | # define PL_endwhite (PL_parser->endwhite) | |
79 | # define PL_faketokens (PL_parser->faketokens) | |
80 | # define PL_lasttoke (PL_parser->lasttoke) | |
81 | # define PL_nextwhite (PL_parser->nextwhite) | |
82 | # define PL_realtokenstart (PL_parser->realtokenstart) | |
83 | # define PL_skipwhite (PL_parser->skipwhite) | |
84 | # define PL_thisclose (PL_parser->thisclose) | |
85 | # define PL_thismad (PL_parser->thismad) | |
86 | # define PL_thisopen (PL_parser->thisopen) | |
87 | # define PL_thisstuff (PL_parser->thisstuff) | |
88 | # define PL_thistoken (PL_parser->thistoken) | |
89 | # define PL_thiswhite (PL_parser->thiswhite) | |
fb205e7a DM |
90 | # define PL_thiswhite (PL_parser->thiswhite) |
91 | # define PL_nexttoke (PL_parser->nexttoke) | |
92 | # define PL_curforce (PL_parser->curforce) | |
93 | #else | |
94 | # define PL_nexttoke (PL_parser->nexttoke) | |
95 | # define PL_nexttype (PL_parser->nexttype) | |
96 | # define PL_nextval (PL_parser->nextval) | |
199e78b7 DM |
97 | #endif |
98 | ||
3cbf51f5 DM |
99 | static int |
100 | S_pending_ident(pTHX); | |
199e78b7 | 101 | |
0bd48802 | 102 | static const char ident_too_long[] = "Identifier too long"; |
c445ea15 | 103 | static const char commaless_variable_list[] = "comma-less variable list"; |
8903cb82 | 104 | |
6e3aabd6 | 105 | #ifndef PERL_NO_UTF16_FILTER |
acfe0abc GS |
106 | static I32 utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen); |
107 | static I32 utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen); | |
6e3aabd6 | 108 | #endif |
51371543 | 109 | |
29595ff2 | 110 | #ifdef PERL_MAD |
29595ff2 | 111 | # define CURMAD(slot,sv) if (PL_madskills) { curmad(slot,sv); sv = 0; } |
cd81e915 | 112 | # define NEXTVAL_NEXTTOKE PL_nexttoke[PL_curforce].next_val |
9ded7720 | 113 | #else |
5db06880 | 114 | # define CURMAD(slot,sv) |
9ded7720 | 115 | # define NEXTVAL_NEXTTOKE PL_nextval[PL_nexttoke] |
29595ff2 NC |
116 | #endif |
117 | ||
9059aa12 LW |
118 | #define XFAKEBRACK 128 |
119 | #define XENUMMASK 127 | |
120 | ||
39e02b42 JH |
121 | #ifdef USE_UTF8_SCRIPTS |
122 | # define UTF (!IN_BYTES) | |
2b9d42f0 | 123 | #else |
746b446a | 124 | # define UTF ((PL_linestr && DO_UTF8(PL_linestr)) || (PL_hints & HINT_UTF8)) |
2b9d42f0 | 125 | #endif |
a0ed51b3 | 126 | |
61f0cdd9 | 127 | /* In variables named $^X, these are the legal values for X. |
2b92dfce GS |
128 | * 1999-02-27 mjd-perl-patch@plover.com */ |
129 | #define isCONTROLVAR(x) (isUPPER(x) || strchr("[\\]^_?", (x))) | |
130 | ||
bf4acbe4 GS |
131 | /* On MacOS, respect nonbreaking spaces */ |
132 | #ifdef MACOS_TRADITIONAL | |
133 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\312'||(c)=='\t') | |
134 | #else | |
135 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\t') | |
136 | #endif | |
137 | ||
ffb4593c NT |
138 | /* LEX_* are values for PL_lex_state, the state of the lexer. |
139 | * They are arranged oddly so that the guard on the switch statement | |
79072805 LW |
140 | * can get by with a single comparison (if the compiler is smart enough). |
141 | */ | |
142 | ||
fb73857a | 143 | /* #define LEX_NOTPARSING 11 is done in perl.h. */ |
144 | ||
b6007c36 DM |
145 | #define LEX_NORMAL 10 /* normal code (ie not within "...") */ |
146 | #define LEX_INTERPNORMAL 9 /* code within a string, eg "$foo[$x+1]" */ | |
147 | #define LEX_INTERPCASEMOD 8 /* expecting a \U, \Q or \E etc */ | |
148 | #define LEX_INTERPPUSH 7 /* starting a new sublex parse level */ | |
149 | #define LEX_INTERPSTART 6 /* expecting the start of a $var */ | |
150 | ||
151 | /* at end of code, eg "$x" followed by: */ | |
152 | #define LEX_INTERPEND 5 /* ... eg not one of [, { or -> */ | |
153 | #define LEX_INTERPENDMAYBE 4 /* ... eg one of [, { or -> */ | |
154 | ||
155 | #define LEX_INTERPCONCAT 3 /* expecting anything, eg at start of | |
156 | string or after \E, $foo, etc */ | |
157 | #define LEX_INTERPCONST 2 /* NOT USED */ | |
158 | #define LEX_FORMLINE 1 /* expecting a format line */ | |
159 | #define LEX_KNOWNEXT 0 /* next token known; just return it */ | |
160 | ||
79072805 | 161 | |
bbf60fe6 | 162 | #ifdef DEBUGGING |
27da23d5 | 163 | static const char* const lex_state_names[] = { |
bbf60fe6 DM |
164 | "KNOWNEXT", |
165 | "FORMLINE", | |
166 | "INTERPCONST", | |
167 | "INTERPCONCAT", | |
168 | "INTERPENDMAYBE", | |
169 | "INTERPEND", | |
170 | "INTERPSTART", | |
171 | "INTERPPUSH", | |
172 | "INTERPCASEMOD", | |
173 | "INTERPNORMAL", | |
174 | "NORMAL" | |
175 | }; | |
176 | #endif | |
177 | ||
79072805 LW |
178 | #ifdef ff_next |
179 | #undef ff_next | |
d48672a2 LW |
180 | #endif |
181 | ||
79072805 | 182 | #include "keywords.h" |
fe14fcc3 | 183 | |
ffb4593c NT |
184 | /* CLINE is a macro that ensures PL_copline has a sane value */ |
185 | ||
ae986130 LW |
186 | #ifdef CLINE |
187 | #undef CLINE | |
188 | #endif | |
57843af0 | 189 | #define CLINE (PL_copline = (CopLINE(PL_curcop) < PL_copline ? CopLINE(PL_curcop) : PL_copline)) |
3280af22 | 190 | |
5db06880 | 191 | #ifdef PERL_MAD |
29595ff2 NC |
192 | # define SKIPSPACE0(s) skipspace0(s) |
193 | # define SKIPSPACE1(s) skipspace1(s) | |
194 | # define SKIPSPACE2(s,tsv) skipspace2(s,&tsv) | |
195 | # define PEEKSPACE(s) skipspace2(s,0) | |
196 | #else | |
197 | # define SKIPSPACE0(s) skipspace(s) | |
198 | # define SKIPSPACE1(s) skipspace(s) | |
199 | # define SKIPSPACE2(s,tsv) skipspace(s) | |
200 | # define PEEKSPACE(s) skipspace(s) | |
201 | #endif | |
202 | ||
ffb4593c NT |
203 | /* |
204 | * Convenience functions to return different tokens and prime the | |
9cbb5ea2 | 205 | * lexer for the next token. They all take an argument. |
ffb4593c NT |
206 | * |
207 | * TOKEN : generic token (used for '(', DOLSHARP, etc) | |
208 | * OPERATOR : generic operator | |
209 | * AOPERATOR : assignment operator | |
210 | * PREBLOCK : beginning the block after an if, while, foreach, ... | |
211 | * PRETERMBLOCK : beginning a non-code-defining {} block (eg, hash ref) | |
212 | * PREREF : *EXPR where EXPR is not a simple identifier | |
213 | * TERM : expression term | |
214 | * LOOPX : loop exiting command (goto, last, dump, etc) | |
215 | * FTST : file test operator | |
216 | * FUN0 : zero-argument function | |
2d2e263d | 217 | * FUN1 : not used, except for not, which isn't a UNIOP |
ffb4593c NT |
218 | * BOop : bitwise or or xor |
219 | * BAop : bitwise and | |
220 | * SHop : shift operator | |
221 | * PWop : power operator | |
9cbb5ea2 | 222 | * PMop : pattern-matching operator |
ffb4593c NT |
223 | * Aop : addition-level operator |
224 | * Mop : multiplication-level operator | |
225 | * Eop : equality-testing operator | |
e5edeb50 | 226 | * Rop : relational operator <= != gt |
ffb4593c NT |
227 | * |
228 | * Also see LOP and lop() below. | |
229 | */ | |
230 | ||
998054bd | 231 | #ifdef DEBUGGING /* Serve -DT. */ |
704d4215 | 232 | # define REPORT(retval) tokereport((I32)retval, &pl_yylval) |
998054bd | 233 | #else |
bbf60fe6 | 234 | # define REPORT(retval) (retval) |
998054bd SC |
235 | #endif |
236 | ||
bbf60fe6 DM |
237 | #define TOKEN(retval) return ( PL_bufptr = s, REPORT(retval)) |
238 | #define OPERATOR(retval) return (PL_expect = XTERM, PL_bufptr = s, REPORT(retval)) | |
239 | #define AOPERATOR(retval) return ao((PL_expect = XTERM, PL_bufptr = s, REPORT(retval))) | |
240 | #define PREBLOCK(retval) return (PL_expect = XBLOCK,PL_bufptr = s, REPORT(retval)) | |
241 | #define PRETERMBLOCK(retval) return (PL_expect = XTERMBLOCK,PL_bufptr = s, REPORT(retval)) | |
242 | #define PREREF(retval) return (PL_expect = XREF,PL_bufptr = s, REPORT(retval)) | |
243 | #define TERM(retval) return (CLINE, PL_expect = XOPERATOR, PL_bufptr = s, REPORT(retval)) | |
6154021b RGS |
244 | #define LOOPX(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)LOOPEX)) |
245 | #define FTST(f) return (pl_yylval.ival=f, PL_expect=XTERMORDORDOR, PL_bufptr=s, REPORT((int)UNIOP)) | |
246 | #define FUN0(f) return (pl_yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC0)) | |
247 | #define FUN1(f) return (pl_yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC1)) | |
248 | #define BOop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITOROP))) | |
249 | #define BAop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITANDOP))) | |
250 | #define SHop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)SHIFTOP))) | |
251 | #define PWop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)POWOP))) | |
252 | #define PMop(f) return(pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MATCHOP)) | |
253 | #define Aop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)ADDOP))) | |
254 | #define Mop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MULOP))) | |
255 | #define Eop(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)EQOP)) | |
256 | #define Rop(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)RELOP)) | |
2f3197b3 | 257 | |
a687059c LW |
258 | /* This bit of chicanery makes a unary function followed by |
259 | * a parenthesis into a function with one argument, highest precedence. | |
6f33ba73 RGS |
260 | * The UNIDOR macro is for unary functions that can be followed by the // |
261 | * operator (such as C<shift // 0>). | |
a687059c | 262 | */ |
376fcdbf | 263 | #define UNI2(f,x) { \ |
6154021b | 264 | pl_yylval.ival = f; \ |
376fcdbf AL |
265 | PL_expect = x; \ |
266 | PL_bufptr = s; \ | |
267 | PL_last_uni = PL_oldbufptr; \ | |
268 | PL_last_lop_op = f; \ | |
269 | if (*s == '(') \ | |
270 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 271 | s = PEEKSPACE(s); \ |
376fcdbf AL |
272 | return REPORT( *s=='(' ? (int)FUNC1 : (int)UNIOP ); \ |
273 | } | |
6f33ba73 RGS |
274 | #define UNI(f) UNI2(f,XTERM) |
275 | #define UNIDOR(f) UNI2(f,XTERMORDORDOR) | |
a687059c | 276 | |
376fcdbf | 277 | #define UNIBRACK(f) { \ |
6154021b | 278 | pl_yylval.ival = f; \ |
376fcdbf AL |
279 | PL_bufptr = s; \ |
280 | PL_last_uni = PL_oldbufptr; \ | |
281 | if (*s == '(') \ | |
282 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 283 | s = PEEKSPACE(s); \ |
376fcdbf AL |
284 | return REPORT( (*s == '(') ? (int)FUNC1 : (int)UNIOP ); \ |
285 | } | |
79072805 | 286 | |
9f68db38 | 287 | /* grandfather return to old style */ |
6154021b | 288 | #define OLDLOP(f) return(pl_yylval.ival=f,PL_expect = XTERM,PL_bufptr = s,(int)LSTOP) |
79072805 | 289 | |
8fa7f367 JH |
290 | #ifdef DEBUGGING |
291 | ||
6154021b | 292 | /* how to interpret the pl_yylval associated with the token */ |
bbf60fe6 DM |
293 | enum token_type { |
294 | TOKENTYPE_NONE, | |
295 | TOKENTYPE_IVAL, | |
6154021b | 296 | TOKENTYPE_OPNUM, /* pl_yylval.ival contains an opcode number */ |
bbf60fe6 DM |
297 | TOKENTYPE_PVAL, |
298 | TOKENTYPE_OPVAL, | |
299 | TOKENTYPE_GVVAL | |
300 | }; | |
301 | ||
6d4a66ac NC |
302 | static struct debug_tokens { |
303 | const int token; | |
304 | enum token_type type; | |
305 | const char *name; | |
306 | } const debug_tokens[] = | |
9041c2e3 | 307 | { |
bbf60fe6 DM |
308 | { ADDOP, TOKENTYPE_OPNUM, "ADDOP" }, |
309 | { ANDAND, TOKENTYPE_NONE, "ANDAND" }, | |
310 | { ANDOP, TOKENTYPE_NONE, "ANDOP" }, | |
311 | { ANONSUB, TOKENTYPE_IVAL, "ANONSUB" }, | |
312 | { ARROW, TOKENTYPE_NONE, "ARROW" }, | |
313 | { ASSIGNOP, TOKENTYPE_OPNUM, "ASSIGNOP" }, | |
314 | { BITANDOP, TOKENTYPE_OPNUM, "BITANDOP" }, | |
315 | { BITOROP, TOKENTYPE_OPNUM, "BITOROP" }, | |
316 | { COLONATTR, TOKENTYPE_NONE, "COLONATTR" }, | |
317 | { CONTINUE, TOKENTYPE_NONE, "CONTINUE" }, | |
0d863452 | 318 | { DEFAULT, TOKENTYPE_NONE, "DEFAULT" }, |
bbf60fe6 DM |
319 | { DO, TOKENTYPE_NONE, "DO" }, |
320 | { DOLSHARP, TOKENTYPE_NONE, "DOLSHARP" }, | |
321 | { DORDOR, TOKENTYPE_NONE, "DORDOR" }, | |
322 | { DOROP, TOKENTYPE_OPNUM, "DOROP" }, | |
323 | { DOTDOT, TOKENTYPE_IVAL, "DOTDOT" }, | |
324 | { ELSE, TOKENTYPE_NONE, "ELSE" }, | |
325 | { ELSIF, TOKENTYPE_IVAL, "ELSIF" }, | |
326 | { EQOP, TOKENTYPE_OPNUM, "EQOP" }, | |
327 | { FOR, TOKENTYPE_IVAL, "FOR" }, | |
328 | { FORMAT, TOKENTYPE_NONE, "FORMAT" }, | |
329 | { FUNC, TOKENTYPE_OPNUM, "FUNC" }, | |
330 | { FUNC0, TOKENTYPE_OPNUM, "FUNC0" }, | |
331 | { FUNC0SUB, TOKENTYPE_OPVAL, "FUNC0SUB" }, | |
332 | { FUNC1, TOKENTYPE_OPNUM, "FUNC1" }, | |
333 | { FUNCMETH, TOKENTYPE_OPVAL, "FUNCMETH" }, | |
0d863452 | 334 | { GIVEN, TOKENTYPE_IVAL, "GIVEN" }, |
bbf60fe6 DM |
335 | { HASHBRACK, TOKENTYPE_NONE, "HASHBRACK" }, |
336 | { IF, TOKENTYPE_IVAL, "IF" }, | |
337 | { LABEL, TOKENTYPE_PVAL, "LABEL" }, | |
338 | { LOCAL, TOKENTYPE_IVAL, "LOCAL" }, | |
339 | { LOOPEX, TOKENTYPE_OPNUM, "LOOPEX" }, | |
340 | { LSTOP, TOKENTYPE_OPNUM, "LSTOP" }, | |
341 | { LSTOPSUB, TOKENTYPE_OPVAL, "LSTOPSUB" }, | |
342 | { MATCHOP, TOKENTYPE_OPNUM, "MATCHOP" }, | |
343 | { METHOD, TOKENTYPE_OPVAL, "METHOD" }, | |
344 | { MULOP, TOKENTYPE_OPNUM, "MULOP" }, | |
345 | { MY, TOKENTYPE_IVAL, "MY" }, | |
346 | { MYSUB, TOKENTYPE_NONE, "MYSUB" }, | |
347 | { NOAMP, TOKENTYPE_NONE, "NOAMP" }, | |
348 | { NOTOP, TOKENTYPE_NONE, "NOTOP" }, | |
349 | { OROP, TOKENTYPE_IVAL, "OROP" }, | |
350 | { OROR, TOKENTYPE_NONE, "OROR" }, | |
351 | { PACKAGE, TOKENTYPE_NONE, "PACKAGE" }, | |
352 | { PMFUNC, TOKENTYPE_OPVAL, "PMFUNC" }, | |
353 | { POSTDEC, TOKENTYPE_NONE, "POSTDEC" }, | |
354 | { POSTINC, TOKENTYPE_NONE, "POSTINC" }, | |
355 | { POWOP, TOKENTYPE_OPNUM, "POWOP" }, | |
356 | { PREDEC, TOKENTYPE_NONE, "PREDEC" }, | |
357 | { PREINC, TOKENTYPE_NONE, "PREINC" }, | |
358 | { PRIVATEREF, TOKENTYPE_OPVAL, "PRIVATEREF" }, | |
359 | { REFGEN, TOKENTYPE_NONE, "REFGEN" }, | |
360 | { RELOP, TOKENTYPE_OPNUM, "RELOP" }, | |
361 | { SHIFTOP, TOKENTYPE_OPNUM, "SHIFTOP" }, | |
362 | { SUB, TOKENTYPE_NONE, "SUB" }, | |
363 | { THING, TOKENTYPE_OPVAL, "THING" }, | |
364 | { UMINUS, TOKENTYPE_NONE, "UMINUS" }, | |
365 | { UNIOP, TOKENTYPE_OPNUM, "UNIOP" }, | |
366 | { UNIOPSUB, TOKENTYPE_OPVAL, "UNIOPSUB" }, | |
367 | { UNLESS, TOKENTYPE_IVAL, "UNLESS" }, | |
368 | { UNTIL, TOKENTYPE_IVAL, "UNTIL" }, | |
369 | { USE, TOKENTYPE_IVAL, "USE" }, | |
0d863452 | 370 | { WHEN, TOKENTYPE_IVAL, "WHEN" }, |
bbf60fe6 DM |
371 | { WHILE, TOKENTYPE_IVAL, "WHILE" }, |
372 | { WORD, TOKENTYPE_OPVAL, "WORD" }, | |
be25f609 | 373 | { YADAYADA, TOKENTYPE_IVAL, "YADAYADA" }, |
c35e046a | 374 | { 0, TOKENTYPE_NONE, NULL } |
bbf60fe6 DM |
375 | }; |
376 | ||
6154021b | 377 | /* dump the returned token in rv, plus any optional arg in pl_yylval */ |
998054bd | 378 | |
bbf60fe6 | 379 | STATIC int |
704d4215 | 380 | S_tokereport(pTHX_ I32 rv, const YYSTYPE* lvalp) |
bbf60fe6 | 381 | { |
97aff369 | 382 | dVAR; |
7918f24d NC |
383 | |
384 | PERL_ARGS_ASSERT_TOKEREPORT; | |
385 | ||
bbf60fe6 | 386 | if (DEBUG_T_TEST) { |
bd61b366 | 387 | const char *name = NULL; |
bbf60fe6 | 388 | enum token_type type = TOKENTYPE_NONE; |
f54cb97a | 389 | const struct debug_tokens *p; |
396482e1 | 390 | SV* const report = newSVpvs("<== "); |
bbf60fe6 | 391 | |
f54cb97a | 392 | for (p = debug_tokens; p->token; p++) { |
bbf60fe6 DM |
393 | if (p->token == (int)rv) { |
394 | name = p->name; | |
395 | type = p->type; | |
396 | break; | |
397 | } | |
398 | } | |
399 | if (name) | |
54667de8 | 400 | Perl_sv_catpv(aTHX_ report, name); |
bbf60fe6 DM |
401 | else if ((char)rv > ' ' && (char)rv < '~') |
402 | Perl_sv_catpvf(aTHX_ report, "'%c'", (char)rv); | |
403 | else if (!rv) | |
396482e1 | 404 | sv_catpvs(report, "EOF"); |
bbf60fe6 DM |
405 | else |
406 | Perl_sv_catpvf(aTHX_ report, "?? %"IVdf, (IV)rv); | |
407 | switch (type) { | |
408 | case TOKENTYPE_NONE: | |
409 | case TOKENTYPE_GVVAL: /* doesn't appear to be used */ | |
410 | break; | |
411 | case TOKENTYPE_IVAL: | |
704d4215 | 412 | Perl_sv_catpvf(aTHX_ report, "(ival=%"IVdf")", (IV)lvalp->ival); |
bbf60fe6 DM |
413 | break; |
414 | case TOKENTYPE_OPNUM: | |
415 | Perl_sv_catpvf(aTHX_ report, "(ival=op_%s)", | |
704d4215 | 416 | PL_op_name[lvalp->ival]); |
bbf60fe6 DM |
417 | break; |
418 | case TOKENTYPE_PVAL: | |
704d4215 | 419 | Perl_sv_catpvf(aTHX_ report, "(pval=\"%s\")", lvalp->pval); |
bbf60fe6 DM |
420 | break; |
421 | case TOKENTYPE_OPVAL: | |
704d4215 | 422 | if (lvalp->opval) { |
401441c0 | 423 | Perl_sv_catpvf(aTHX_ report, "(opval=op_%s)", |
704d4215 GG |
424 | PL_op_name[lvalp->opval->op_type]); |
425 | if (lvalp->opval->op_type == OP_CONST) { | |
b6007c36 | 426 | Perl_sv_catpvf(aTHX_ report, " %s", |
704d4215 | 427 | SvPEEK(cSVOPx_sv(lvalp->opval))); |
b6007c36 DM |
428 | } |
429 | ||
430 | } | |
401441c0 | 431 | else |
396482e1 | 432 | sv_catpvs(report, "(opval=null)"); |
bbf60fe6 DM |
433 | break; |
434 | } | |
b6007c36 | 435 | PerlIO_printf(Perl_debug_log, "### %s\n\n", SvPV_nolen_const(report)); |
bbf60fe6 DM |
436 | }; |
437 | return (int)rv; | |
998054bd SC |
438 | } |
439 | ||
b6007c36 DM |
440 | |
441 | /* print the buffer with suitable escapes */ | |
442 | ||
443 | STATIC void | |
15f169a1 | 444 | S_printbuf(pTHX_ const char *const fmt, const char *const s) |
b6007c36 | 445 | { |
396482e1 | 446 | SV* const tmp = newSVpvs(""); |
7918f24d NC |
447 | |
448 | PERL_ARGS_ASSERT_PRINTBUF; | |
449 | ||
b6007c36 DM |
450 | PerlIO_printf(Perl_debug_log, fmt, pv_display(tmp, s, strlen(s), 0, 60)); |
451 | SvREFCNT_dec(tmp); | |
452 | } | |
453 | ||
8fa7f367 JH |
454 | #endif |
455 | ||
ffb4593c NT |
456 | /* |
457 | * S_ao | |
458 | * | |
c963b151 BD |
459 | * This subroutine detects &&=, ||=, and //= and turns an ANDAND, OROR or DORDOR |
460 | * into an OP_ANDASSIGN, OP_ORASSIGN, or OP_DORASSIGN | |
ffb4593c NT |
461 | */ |
462 | ||
76e3520e | 463 | STATIC int |
cea2e8a9 | 464 | S_ao(pTHX_ int toketype) |
a0d0e21e | 465 | { |
97aff369 | 466 | dVAR; |
3280af22 NIS |
467 | if (*PL_bufptr == '=') { |
468 | PL_bufptr++; | |
a0d0e21e | 469 | if (toketype == ANDAND) |
6154021b | 470 | pl_yylval.ival = OP_ANDASSIGN; |
a0d0e21e | 471 | else if (toketype == OROR) |
6154021b | 472 | pl_yylval.ival = OP_ORASSIGN; |
c963b151 | 473 | else if (toketype == DORDOR) |
6154021b | 474 | pl_yylval.ival = OP_DORASSIGN; |
a0d0e21e LW |
475 | toketype = ASSIGNOP; |
476 | } | |
477 | return toketype; | |
478 | } | |
479 | ||
ffb4593c NT |
480 | /* |
481 | * S_no_op | |
482 | * When Perl expects an operator and finds something else, no_op | |
483 | * prints the warning. It always prints "<something> found where | |
484 | * operator expected. It prints "Missing semicolon on previous line?" | |
485 | * if the surprise occurs at the start of the line. "do you need to | |
486 | * predeclare ..." is printed out for code like "sub bar; foo bar $x" | |
487 | * where the compiler doesn't know if foo is a method call or a function. | |
488 | * It prints "Missing operator before end of line" if there's nothing | |
489 | * after the missing operator, or "... before <...>" if there is something | |
490 | * after the missing operator. | |
491 | */ | |
492 | ||
76e3520e | 493 | STATIC void |
15f169a1 | 494 | S_no_op(pTHX_ const char *const what, char *s) |
463ee0b2 | 495 | { |
97aff369 | 496 | dVAR; |
9d4ba2ae AL |
497 | char * const oldbp = PL_bufptr; |
498 | const bool is_first = (PL_oldbufptr == PL_linestart); | |
68dc0745 | 499 | |
7918f24d NC |
500 | PERL_ARGS_ASSERT_NO_OP; |
501 | ||
1189a94a GS |
502 | if (!s) |
503 | s = oldbp; | |
07c798fb | 504 | else |
1189a94a | 505 | PL_bufptr = s; |
cea2e8a9 | 506 | yywarn(Perl_form(aTHX_ "%s found where operator expected", what)); |
56da5a46 RGS |
507 | if (ckWARN_d(WARN_SYNTAX)) { |
508 | if (is_first) | |
509 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
510 | "\t(Missing semicolon on previous line?)\n"); | |
511 | else if (PL_oldoldbufptr && isIDFIRST_lazy_if(PL_oldoldbufptr,UTF)) { | |
f54cb97a | 512 | const char *t; |
c35e046a AL |
513 | for (t = PL_oldoldbufptr; (isALNUM_lazy_if(t,UTF) || *t == ':'); t++) |
514 | NOOP; | |
56da5a46 RGS |
515 | if (t < PL_bufptr && isSPACE(*t)) |
516 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
517 | "\t(Do you need to predeclare %.*s?)\n", | |
551405c4 | 518 | (int)(t - PL_oldoldbufptr), PL_oldoldbufptr); |
56da5a46 RGS |
519 | } |
520 | else { | |
521 | assert(s >= oldbp); | |
522 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
551405c4 | 523 | "\t(Missing operator before %.*s?)\n", (int)(s - oldbp), oldbp); |
56da5a46 | 524 | } |
07c798fb | 525 | } |
3280af22 | 526 | PL_bufptr = oldbp; |
8990e307 LW |
527 | } |
528 | ||
ffb4593c NT |
529 | /* |
530 | * S_missingterm | |
531 | * Complain about missing quote/regexp/heredoc terminator. | |
d4c19fe8 | 532 | * If it's called with NULL then it cauterizes the line buffer. |
ffb4593c NT |
533 | * If we're in a delimited string and the delimiter is a control |
534 | * character, it's reformatted into a two-char sequence like ^C. | |
535 | * This is fatal. | |
536 | */ | |
537 | ||
76e3520e | 538 | STATIC void |
cea2e8a9 | 539 | S_missingterm(pTHX_ char *s) |
8990e307 | 540 | { |
97aff369 | 541 | dVAR; |
8990e307 LW |
542 | char tmpbuf[3]; |
543 | char q; | |
544 | if (s) { | |
9d4ba2ae | 545 | char * const nl = strrchr(s,'\n'); |
d2719217 | 546 | if (nl) |
8990e307 LW |
547 | *nl = '\0'; |
548 | } | |
463559e7 | 549 | else if (isCNTRL(PL_multi_close)) { |
8990e307 | 550 | *tmpbuf = '^'; |
585ec06d | 551 | tmpbuf[1] = (char)toCTRL(PL_multi_close); |
8990e307 LW |
552 | tmpbuf[2] = '\0'; |
553 | s = tmpbuf; | |
554 | } | |
555 | else { | |
eb160463 | 556 | *tmpbuf = (char)PL_multi_close; |
8990e307 LW |
557 | tmpbuf[1] = '\0'; |
558 | s = tmpbuf; | |
559 | } | |
560 | q = strchr(s,'"') ? '\'' : '"'; | |
cea2e8a9 | 561 | Perl_croak(aTHX_ "Can't find string terminator %c%s%c anywhere before EOF",q,s,q); |
463ee0b2 | 562 | } |
79072805 | 563 | |
ef89dcc3 | 564 | #define FEATURE_IS_ENABLED(name) \ |
0d863452 | 565 | ((0 != (PL_hints & HINT_LOCALIZE_HH)) \ |
89529cee | 566 | && S_feature_is_enabled(aTHX_ STR_WITH_LEN(name))) |
4a731d7b NC |
567 | /* The longest string we pass in. */ |
568 | #define MAX_FEATURE_LEN (sizeof("switch")-1) | |
569 | ||
0d863452 RH |
570 | /* |
571 | * S_feature_is_enabled | |
572 | * Check whether the named feature is enabled. | |
573 | */ | |
574 | STATIC bool | |
15f169a1 | 575 | S_feature_is_enabled(pTHX_ const char *const name, STRLEN namelen) |
0d863452 | 576 | { |
97aff369 | 577 | dVAR; |
0d863452 | 578 | HV * const hinthv = GvHV(PL_hintgv); |
4a731d7b | 579 | char he_name[8 + MAX_FEATURE_LEN] = "feature_"; |
7918f24d NC |
580 | |
581 | PERL_ARGS_ASSERT_FEATURE_IS_ENABLED; | |
582 | ||
4a731d7b NC |
583 | assert(namelen <= MAX_FEATURE_LEN); |
584 | memcpy(&he_name[8], name, namelen); | |
d4c19fe8 | 585 | |
7b9ef140 | 586 | return (hinthv && hv_exists(hinthv, he_name, 8 + namelen)); |
0d863452 RH |
587 | } |
588 | ||
ffb4593c NT |
589 | /* |
590 | * Perl_deprecate | |
ffb4593c NT |
591 | */ |
592 | ||
79072805 | 593 | void |
15f169a1 | 594 | Perl_deprecate(pTHX_ const char *const s) |
a0d0e21e | 595 | { |
7918f24d NC |
596 | PERL_ARGS_ASSERT_DEPRECATE; |
597 | ||
599cee73 | 598 | if (ckWARN(WARN_DEPRECATED)) |
9014280d | 599 | Perl_warner(aTHX_ packWARN(WARN_DEPRECATED), "Use of %s is deprecated", s); |
a0d0e21e LW |
600 | } |
601 | ||
12bcd1a6 | 602 | void |
15f169a1 | 603 | Perl_deprecate_old(pTHX_ const char *const s) |
12bcd1a6 PM |
604 | { |
605 | /* This function should NOT be called for any new deprecated warnings */ | |
606 | /* Use Perl_deprecate instead */ | |
607 | /* */ | |
608 | /* It is here to maintain backward compatibility with the pre-5.8 */ | |
609 | /* warnings category hierarchy. The "deprecated" category used to */ | |
610 | /* live under the "syntax" category. It is now a top-level category */ | |
611 | /* in its own right. */ | |
612 | ||
7918f24d NC |
613 | PERL_ARGS_ASSERT_DEPRECATE_OLD; |
614 | ||
12bcd1a6 | 615 | if (ckWARN2(WARN_DEPRECATED, WARN_SYNTAX)) |
bfed75c6 | 616 | Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX), |
12bcd1a6 PM |
617 | "Use of %s is deprecated", s); |
618 | } | |
619 | ||
ffb4593c | 620 | /* |
9cbb5ea2 GS |
621 | * experimental text filters for win32 carriage-returns, utf16-to-utf8 and |
622 | * utf16-to-utf8-reversed. | |
ffb4593c NT |
623 | */ |
624 | ||
c39cd008 GS |
625 | #ifdef PERL_CR_FILTER |
626 | static void | |
627 | strip_return(SV *sv) | |
628 | { | |
95a20fc0 | 629 | register const char *s = SvPVX_const(sv); |
9d4ba2ae | 630 | register const char * const e = s + SvCUR(sv); |
7918f24d NC |
631 | |
632 | PERL_ARGS_ASSERT_STRIP_RETURN; | |
633 | ||
c39cd008 GS |
634 | /* outer loop optimized to do nothing if there are no CR-LFs */ |
635 | while (s < e) { | |
636 | if (*s++ == '\r' && *s == '\n') { | |
637 | /* hit a CR-LF, need to copy the rest */ | |
638 | register char *d = s - 1; | |
639 | *d++ = *s++; | |
640 | while (s < e) { | |
641 | if (*s == '\r' && s[1] == '\n') | |
642 | s++; | |
643 | *d++ = *s++; | |
644 | } | |
645 | SvCUR(sv) -= s - d; | |
646 | return; | |
647 | } | |
648 | } | |
649 | } | |
a868473f | 650 | |
76e3520e | 651 | STATIC I32 |
c39cd008 | 652 | S_cr_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
a868473f | 653 | { |
f54cb97a | 654 | const I32 count = FILTER_READ(idx+1, sv, maxlen); |
c39cd008 GS |
655 | if (count > 0 && !maxlen) |
656 | strip_return(sv); | |
657 | return count; | |
a868473f NIS |
658 | } |
659 | #endif | |
660 | ||
199e78b7 DM |
661 | |
662 | ||
ffb4593c NT |
663 | /* |
664 | * Perl_lex_start | |
5486870f | 665 | * |
e3abe207 | 666 | * Create a parser object and initialise its parser and lexer fields |
5486870f DM |
667 | * |
668 | * rsfp is the opened file handle to read from (if any), | |
669 | * | |
670 | * line holds any initial content already read from the file (or in | |
671 | * the case of no file, such as an eval, the whole contents); | |
672 | * | |
673 | * new_filter indicates that this is a new file and it shouldn't inherit | |
674 | * the filters from the current parser (ie require). | |
ffb4593c NT |
675 | */ |
676 | ||
a0d0e21e | 677 | void |
5486870f | 678 | Perl_lex_start(pTHX_ SV *line, PerlIO *rsfp, bool new_filter) |
79072805 | 679 | { |
97aff369 | 680 | dVAR; |
6ef55633 | 681 | const char *s = NULL; |
8990e307 | 682 | STRLEN len; |
5486870f | 683 | yy_parser *parser, *oparser; |
acdf0a21 DM |
684 | |
685 | /* create and initialise a parser */ | |
686 | ||
199e78b7 | 687 | Newxz(parser, 1, yy_parser); |
5486870f | 688 | parser->old_parser = oparser = PL_parser; |
acdf0a21 DM |
689 | PL_parser = parser; |
690 | ||
691 | Newx(parser->stack, YYINITDEPTH, yy_stack_frame); | |
692 | parser->ps = parser->stack; | |
693 | parser->stack_size = YYINITDEPTH; | |
694 | ||
695 | parser->stack->state = 0; | |
696 | parser->yyerrstatus = 0; | |
697 | parser->yychar = YYEMPTY; /* Cause a token to be read. */ | |
698 | ||
e3abe207 DM |
699 | /* on scope exit, free this parser and restore any outer one */ |
700 | SAVEPARSER(parser); | |
7c4baf47 | 701 | parser->saved_curcop = PL_curcop; |
e3abe207 | 702 | |
acdf0a21 | 703 | /* initialise lexer state */ |
8990e307 | 704 | |
fb205e7a DM |
705 | #ifdef PERL_MAD |
706 | parser->curforce = -1; | |
707 | #else | |
708 | parser->nexttoke = 0; | |
709 | #endif | |
ca4cfd28 | 710 | parser->error_count = oparser ? oparser->error_count : 0; |
c2598295 | 711 | parser->copline = NOLINE; |
5afb0a62 | 712 | parser->lex_state = LEX_NORMAL; |
c2598295 | 713 | parser->expect = XSTATE; |
2f9285f8 | 714 | parser->rsfp = rsfp; |
56b27c9a | 715 | parser->rsfp_filters = (new_filter || !oparser) ? newAV() |
502c6561 | 716 | : MUTABLE_AV(SvREFCNT_inc(oparser->rsfp_filters)); |
2f9285f8 | 717 | |
199e78b7 DM |
718 | Newx(parser->lex_brackstack, 120, char); |
719 | Newx(parser->lex_casestack, 12, char); | |
720 | *parser->lex_casestack = '\0'; | |
02b34bbe | 721 | |
10efb74f NC |
722 | if (line) { |
723 | s = SvPV_const(line, len); | |
724 | } else { | |
725 | len = 0; | |
726 | } | |
bdc0bf6f | 727 | |
10efb74f | 728 | if (!len) { |
bdc0bf6f | 729 | parser->linestr = newSVpvs("\n;"); |
10efb74f | 730 | } else if (SvREADONLY(line) || s[len-1] != ';') { |
bdc0bf6f | 731 | parser->linestr = newSVsv(line); |
10efb74f | 732 | if (s[len-1] != ';') |
bdc0bf6f | 733 | sv_catpvs(parser->linestr, "\n;"); |
6c5ce11d NC |
734 | } else { |
735 | SvTEMP_off(line); | |
736 | SvREFCNT_inc_simple_void_NN(line); | |
bdc0bf6f | 737 | parser->linestr = line; |
8990e307 | 738 | } |
f06b5848 DM |
739 | parser->oldoldbufptr = |
740 | parser->oldbufptr = | |
741 | parser->bufptr = | |
742 | parser->linestart = SvPVX(parser->linestr); | |
743 | parser->bufend = parser->bufptr + SvCUR(parser->linestr); | |
744 | parser->last_lop = parser->last_uni = NULL; | |
79072805 | 745 | } |
a687059c | 746 | |
e3abe207 DM |
747 | |
748 | /* delete a parser object */ | |
749 | ||
750 | void | |
751 | Perl_parser_free(pTHX_ const yy_parser *parser) | |
752 | { | |
7918f24d NC |
753 | PERL_ARGS_ASSERT_PARSER_FREE; |
754 | ||
7c4baf47 | 755 | PL_curcop = parser->saved_curcop; |
bdc0bf6f DM |
756 | SvREFCNT_dec(parser->linestr); |
757 | ||
2f9285f8 DM |
758 | if (parser->rsfp == PerlIO_stdin()) |
759 | PerlIO_clearerr(parser->rsfp); | |
799361c3 SH |
760 | else if (parser->rsfp && (!parser->old_parser || |
761 | (parser->old_parser && parser->rsfp != parser->old_parser->rsfp))) | |
2f9285f8 | 762 | PerlIO_close(parser->rsfp); |
5486870f | 763 | SvREFCNT_dec(parser->rsfp_filters); |
2f9285f8 | 764 | |
e3abe207 DM |
765 | Safefree(parser->stack); |
766 | Safefree(parser->lex_brackstack); | |
767 | Safefree(parser->lex_casestack); | |
768 | PL_parser = parser->old_parser; | |
769 | Safefree(parser); | |
770 | } | |
771 | ||
772 | ||
ffb4593c NT |
773 | /* |
774 | * Perl_lex_end | |
9cbb5ea2 GS |
775 | * Finalizer for lexing operations. Must be called when the parser is |
776 | * done with the lexer. | |
ffb4593c NT |
777 | */ |
778 | ||
463ee0b2 | 779 | void |
864dbfa3 | 780 | Perl_lex_end(pTHX) |
463ee0b2 | 781 | { |
97aff369 | 782 | dVAR; |
3280af22 | 783 | PL_doextract = FALSE; |
463ee0b2 LW |
784 | } |
785 | ||
ffb4593c NT |
786 | /* |
787 | * S_incline | |
788 | * This subroutine has nothing to do with tilting, whether at windmills | |
789 | * or pinball tables. Its name is short for "increment line". It | |
57843af0 | 790 | * increments the current line number in CopLINE(PL_curcop) and checks |
ffb4593c | 791 | * to see whether the line starts with a comment of the form |
9cbb5ea2 GS |
792 | * # line 500 "foo.pm" |
793 | * If so, it sets the current line number and file to the values in the comment. | |
ffb4593c NT |
794 | */ |
795 | ||
76e3520e | 796 | STATIC void |
d9095cec | 797 | S_incline(pTHX_ const char *s) |
463ee0b2 | 798 | { |
97aff369 | 799 | dVAR; |
d9095cec NC |
800 | const char *t; |
801 | const char *n; | |
802 | const char *e; | |
463ee0b2 | 803 | |
7918f24d NC |
804 | PERL_ARGS_ASSERT_INCLINE; |
805 | ||
57843af0 | 806 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
807 | if (*s++ != '#') |
808 | return; | |
d4c19fe8 AL |
809 | while (SPACE_OR_TAB(*s)) |
810 | s++; | |
73659bf1 GS |
811 | if (strnEQ(s, "line", 4)) |
812 | s += 4; | |
813 | else | |
814 | return; | |
084592ab | 815 | if (SPACE_OR_TAB(*s)) |
73659bf1 | 816 | s++; |
4e553d73 | 817 | else |
73659bf1 | 818 | return; |
d4c19fe8 AL |
819 | while (SPACE_OR_TAB(*s)) |
820 | s++; | |
463ee0b2 LW |
821 | if (!isDIGIT(*s)) |
822 | return; | |
d4c19fe8 | 823 | |
463ee0b2 LW |
824 | n = s; |
825 | while (isDIGIT(*s)) | |
826 | s++; | |
bf4acbe4 | 827 | while (SPACE_OR_TAB(*s)) |
463ee0b2 | 828 | s++; |
73659bf1 | 829 | if (*s == '"' && (t = strchr(s+1, '"'))) { |
463ee0b2 | 830 | s++; |
73659bf1 GS |
831 | e = t + 1; |
832 | } | |
463ee0b2 | 833 | else { |
c35e046a AL |
834 | t = s; |
835 | while (!isSPACE(*t)) | |
836 | t++; | |
73659bf1 | 837 | e = t; |
463ee0b2 | 838 | } |
bf4acbe4 | 839 | while (SPACE_OR_TAB(*e) || *e == '\r' || *e == '\f') |
73659bf1 GS |
840 | e++; |
841 | if (*e != '\n' && *e != '\0') | |
842 | return; /* false alarm */ | |
843 | ||
f4dd75d9 | 844 | if (t - s > 0) { |
d9095cec | 845 | const STRLEN len = t - s; |
8a5ee598 | 846 | #ifndef USE_ITHREADS |
19bad673 NC |
847 | SV *const temp_sv = CopFILESV(PL_curcop); |
848 | const char *cf; | |
849 | STRLEN tmplen; | |
850 | ||
851 | if (temp_sv) { | |
852 | cf = SvPVX(temp_sv); | |
853 | tmplen = SvCUR(temp_sv); | |
854 | } else { | |
855 | cf = NULL; | |
856 | tmplen = 0; | |
857 | } | |
858 | ||
42d9b98d | 859 | if (tmplen > 7 && strnEQ(cf, "(eval ", 6)) { |
e66cf94c RGS |
860 | /* must copy *{"::_<(eval N)[oldfilename:L]"} |
861 | * to *{"::_<newfilename"} */ | |
44867030 NC |
862 | /* However, the long form of evals is only turned on by the |
863 | debugger - usually they're "(eval %lu)" */ | |
864 | char smallbuf[128]; | |
865 | char *tmpbuf; | |
866 | GV **gvp; | |
d9095cec | 867 | STRLEN tmplen2 = len; |
798b63bc | 868 | if (tmplen + 2 <= sizeof smallbuf) |
e66cf94c RGS |
869 | tmpbuf = smallbuf; |
870 | else | |
2ae0db35 | 871 | Newx(tmpbuf, tmplen + 2, char); |
44867030 NC |
872 | tmpbuf[0] = '_'; |
873 | tmpbuf[1] = '<'; | |
2ae0db35 | 874 | memcpy(tmpbuf + 2, cf, tmplen); |
44867030 | 875 | tmplen += 2; |
8a5ee598 RGS |
876 | gvp = (GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, FALSE); |
877 | if (gvp) { | |
44867030 NC |
878 | char *tmpbuf2; |
879 | GV *gv2; | |
880 | ||
881 | if (tmplen2 + 2 <= sizeof smallbuf) | |
882 | tmpbuf2 = smallbuf; | |
883 | else | |
884 | Newx(tmpbuf2, tmplen2 + 2, char); | |
885 | ||
886 | if (tmpbuf2 != smallbuf || tmpbuf != smallbuf) { | |
887 | /* Either they malloc'd it, or we malloc'd it, | |
888 | so no prefix is present in ours. */ | |
889 | tmpbuf2[0] = '_'; | |
890 | tmpbuf2[1] = '<'; | |
891 | } | |
892 | ||
893 | memcpy(tmpbuf2 + 2, s, tmplen2); | |
894 | tmplen2 += 2; | |
895 | ||
8a5ee598 | 896 | gv2 = *(GV**)hv_fetch(PL_defstash, tmpbuf2, tmplen2, TRUE); |
e5527e4b | 897 | if (!isGV(gv2)) { |
8a5ee598 | 898 | gv_init(gv2, PL_defstash, tmpbuf2, tmplen2, FALSE); |
e5527e4b RGS |
899 | /* adjust ${"::_<newfilename"} to store the new file name */ |
900 | GvSV(gv2) = newSVpvn(tmpbuf2 + 2, tmplen2 - 2); | |
3cb1dbc6 NC |
901 | GvHV(gv2) = MUTABLE_HV(SvREFCNT_inc(GvHV(*gvp))); |
902 | GvAV(gv2) = MUTABLE_AV(SvREFCNT_inc(GvAV(*gvp))); | |
e5527e4b | 903 | } |
44867030 NC |
904 | |
905 | if (tmpbuf2 != smallbuf) Safefree(tmpbuf2); | |
8a5ee598 | 906 | } |
e66cf94c | 907 | if (tmpbuf != smallbuf) Safefree(tmpbuf); |
e66cf94c | 908 | } |
8a5ee598 | 909 | #endif |
05ec9bb3 | 910 | CopFILE_free(PL_curcop); |
d9095cec | 911 | CopFILE_setn(PL_curcop, s, len); |
f4dd75d9 | 912 | } |
57843af0 | 913 | CopLINE_set(PL_curcop, atoi(n)-1); |
463ee0b2 LW |
914 | } |
915 | ||
29595ff2 | 916 | #ifdef PERL_MAD |
cd81e915 | 917 | /* skip space before PL_thistoken */ |
29595ff2 NC |
918 | |
919 | STATIC char * | |
920 | S_skipspace0(pTHX_ register char *s) | |
921 | { | |
7918f24d NC |
922 | PERL_ARGS_ASSERT_SKIPSPACE0; |
923 | ||
29595ff2 NC |
924 | s = skipspace(s); |
925 | if (!PL_madskills) | |
926 | return s; | |
cd81e915 NC |
927 | if (PL_skipwhite) { |
928 | if (!PL_thiswhite) | |
6b29d1f5 | 929 | PL_thiswhite = newSVpvs(""); |
cd81e915 NC |
930 | sv_catsv(PL_thiswhite, PL_skipwhite); |
931 | sv_free(PL_skipwhite); | |
932 | PL_skipwhite = 0; | |
933 | } | |
934 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
29595ff2 NC |
935 | return s; |
936 | } | |
937 | ||
cd81e915 | 938 | /* skip space after PL_thistoken */ |
29595ff2 NC |
939 | |
940 | STATIC char * | |
941 | S_skipspace1(pTHX_ register char *s) | |
942 | { | |
d4c19fe8 | 943 | const char *start = s; |
29595ff2 NC |
944 | I32 startoff = start - SvPVX(PL_linestr); |
945 | ||
7918f24d NC |
946 | PERL_ARGS_ASSERT_SKIPSPACE1; |
947 | ||
29595ff2 NC |
948 | s = skipspace(s); |
949 | if (!PL_madskills) | |
950 | return s; | |
951 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 952 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 953 | const char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
954 | PL_thistoken = newSVpvn(tstart, start - tstart); |
955 | } | |
956 | PL_realtokenstart = -1; | |
957 | if (PL_skipwhite) { | |
958 | if (!PL_nextwhite) | |
6b29d1f5 | 959 | PL_nextwhite = newSVpvs(""); |
cd81e915 NC |
960 | sv_catsv(PL_nextwhite, PL_skipwhite); |
961 | sv_free(PL_skipwhite); | |
962 | PL_skipwhite = 0; | |
29595ff2 NC |
963 | } |
964 | return s; | |
965 | } | |
966 | ||
967 | STATIC char * | |
968 | S_skipspace2(pTHX_ register char *s, SV **svp) | |
969 | { | |
c35e046a AL |
970 | char *start; |
971 | const I32 bufptroff = PL_bufptr - SvPVX(PL_linestr); | |
972 | const I32 startoff = s - SvPVX(PL_linestr); | |
973 | ||
7918f24d NC |
974 | PERL_ARGS_ASSERT_SKIPSPACE2; |
975 | ||
29595ff2 NC |
976 | s = skipspace(s); |
977 | PL_bufptr = SvPVX(PL_linestr) + bufptroff; | |
978 | if (!PL_madskills || !svp) | |
979 | return s; | |
980 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 981 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 982 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
983 | PL_thistoken = newSVpvn(tstart, start - tstart); |
984 | PL_realtokenstart = -1; | |
29595ff2 | 985 | } |
cd81e915 | 986 | if (PL_skipwhite) { |
29595ff2 | 987 | if (!*svp) |
6b29d1f5 | 988 | *svp = newSVpvs(""); |
cd81e915 NC |
989 | sv_setsv(*svp, PL_skipwhite); |
990 | sv_free(PL_skipwhite); | |
991 | PL_skipwhite = 0; | |
29595ff2 NC |
992 | } |
993 | ||
994 | return s; | |
995 | } | |
996 | #endif | |
997 | ||
80a702cd | 998 | STATIC void |
15f169a1 | 999 | S_update_debugger_info(pTHX_ SV *orig_sv, const char *const buf, STRLEN len) |
80a702cd RGS |
1000 | { |
1001 | AV *av = CopFILEAVx(PL_curcop); | |
1002 | if (av) { | |
b9f83d2f | 1003 | SV * const sv = newSV_type(SVt_PVMG); |
5fa550fb NC |
1004 | if (orig_sv) |
1005 | sv_setsv(sv, orig_sv); | |
1006 | else | |
1007 | sv_setpvn(sv, buf, len); | |
80a702cd RGS |
1008 | (void)SvIOK_on(sv); |
1009 | SvIV_set(sv, 0); | |
1010 | av_store(av, (I32)CopLINE(PL_curcop), sv); | |
1011 | } | |
1012 | } | |
1013 | ||
ffb4593c NT |
1014 | /* |
1015 | * S_skipspace | |
1016 | * Called to gobble the appropriate amount and type of whitespace. | |
1017 | * Skips comments as well. | |
1018 | */ | |
1019 | ||
76e3520e | 1020 | STATIC char * |
cea2e8a9 | 1021 | S_skipspace(pTHX_ register char *s) |
a687059c | 1022 | { |
97aff369 | 1023 | dVAR; |
5db06880 NC |
1024 | #ifdef PERL_MAD |
1025 | int curoff; | |
1026 | int startoff = s - SvPVX(PL_linestr); | |
1027 | ||
7918f24d NC |
1028 | PERL_ARGS_ASSERT_SKIPSPACE; |
1029 | ||
cd81e915 NC |
1030 | if (PL_skipwhite) { |
1031 | sv_free(PL_skipwhite); | |
1032 | PL_skipwhite = 0; | |
5db06880 NC |
1033 | } |
1034 | #endif | |
7918f24d | 1035 | PERL_ARGS_ASSERT_SKIPSPACE; |
5db06880 | 1036 | |
3280af22 | 1037 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
bf4acbe4 | 1038 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
463ee0b2 | 1039 | s++; |
5db06880 NC |
1040 | #ifdef PERL_MAD |
1041 | goto done; | |
1042 | #else | |
463ee0b2 | 1043 | return s; |
5db06880 | 1044 | #endif |
463ee0b2 LW |
1045 | } |
1046 | for (;;) { | |
fd049845 | 1047 | STRLEN prevlen; |
09bef843 | 1048 | SSize_t oldprevlen, oldoldprevlen; |
9c5ffd7c | 1049 | SSize_t oldloplen = 0, oldunilen = 0; |
60e6418e GS |
1050 | while (s < PL_bufend && isSPACE(*s)) { |
1051 | if (*s++ == '\n' && PL_in_eval && !PL_rsfp) | |
1052 | incline(s); | |
1053 | } | |
ffb4593c NT |
1054 | |
1055 | /* comment */ | |
3280af22 NIS |
1056 | if (s < PL_bufend && *s == '#') { |
1057 | while (s < PL_bufend && *s != '\n') | |
463ee0b2 | 1058 | s++; |
60e6418e | 1059 | if (s < PL_bufend) { |
463ee0b2 | 1060 | s++; |
60e6418e GS |
1061 | if (PL_in_eval && !PL_rsfp) { |
1062 | incline(s); | |
1063 | continue; | |
1064 | } | |
1065 | } | |
463ee0b2 | 1066 | } |
ffb4593c NT |
1067 | |
1068 | /* only continue to recharge the buffer if we're at the end | |
1069 | * of the buffer, we're not reading from a source filter, and | |
1070 | * we're in normal lexing mode | |
1071 | */ | |
09bef843 SB |
1072 | if (s < PL_bufend || !PL_rsfp || PL_sublex_info.sub_inwhat || |
1073 | PL_lex_state == LEX_FORMLINE) | |
5db06880 NC |
1074 | #ifdef PERL_MAD |
1075 | goto done; | |
1076 | #else | |
463ee0b2 | 1077 | return s; |
5db06880 | 1078 | #endif |
ffb4593c NT |
1079 | |
1080 | /* try to recharge the buffer */ | |
5db06880 NC |
1081 | #ifdef PERL_MAD |
1082 | curoff = s - SvPVX(PL_linestr); | |
1083 | #endif | |
1084 | ||
9cbb5ea2 | 1085 | if ((s = filter_gets(PL_linestr, PL_rsfp, |
bd61b366 | 1086 | (prevlen = SvCUR(PL_linestr)))) == NULL) |
9cbb5ea2 | 1087 | { |
5db06880 NC |
1088 | #ifdef PERL_MAD |
1089 | if (PL_madskills && curoff != startoff) { | |
cd81e915 | 1090 | if (!PL_skipwhite) |
6b29d1f5 | 1091 | PL_skipwhite = newSVpvs(""); |
cd81e915 | 1092 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, |
5db06880 NC |
1093 | curoff - startoff); |
1094 | } | |
1095 | ||
1096 | /* mustn't throw out old stuff yet if madpropping */ | |
1097 | SvCUR(PL_linestr) = curoff; | |
1098 | s = SvPVX(PL_linestr) + curoff; | |
1099 | *s = 0; | |
1100 | if (curoff && s[-1] == '\n') | |
1101 | s[-1] = ' '; | |
1102 | #endif | |
1103 | ||
9cbb5ea2 | 1104 | /* end of file. Add on the -p or -n magic */ |
cd81e915 | 1105 | /* XXX these shouldn't really be added here, can't set PL_faketokens */ |
01a19ab0 | 1106 | if (PL_minus_p) { |
5db06880 | 1107 | #ifdef PERL_MAD |
6502358f | 1108 | sv_catpvs(PL_linestr, |
5db06880 NC |
1109 | ";}continue{print or die qq(-p destination: $!\\n);}"); |
1110 | #else | |
6502358f | 1111 | sv_setpvs(PL_linestr, |
01a19ab0 | 1112 | ";}continue{print or die qq(-p destination: $!\\n);}"); |
5db06880 | 1113 | #endif |
3280af22 | 1114 | PL_minus_n = PL_minus_p = 0; |
a0d0e21e | 1115 | } |
01a19ab0 | 1116 | else if (PL_minus_n) { |
5db06880 | 1117 | #ifdef PERL_MAD |
76f68e9b | 1118 | sv_catpvs(PL_linestr, ";}"); |
5db06880 | 1119 | #else |
76f68e9b | 1120 | sv_setpvs(PL_linestr, ";}"); |
5db06880 | 1121 | #endif |
01a19ab0 NC |
1122 | PL_minus_n = 0; |
1123 | } | |
a0d0e21e | 1124 | else |
5db06880 | 1125 | #ifdef PERL_MAD |
76f68e9b | 1126 | sv_catpvs(PL_linestr,";"); |
5db06880 | 1127 | #else |
76f68e9b | 1128 | sv_setpvs(PL_linestr,";"); |
5db06880 | 1129 | #endif |
ffb4593c NT |
1130 | |
1131 | /* reset variables for next time we lex */ | |
9cbb5ea2 | 1132 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart |
89122651 NC |
1133 | = SvPVX(PL_linestr) |
1134 | #ifdef PERL_MAD | |
1135 | + curoff | |
1136 | #endif | |
1137 | ; | |
3280af22 | 1138 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 1139 | PL_last_lop = PL_last_uni = NULL; |
ffb4593c | 1140 | |
4c84d7f2 | 1141 | /* Close the filehandle. Could be from |
ffb4593c NT |
1142 | * STDIN, or a regular file. If we were reading code from |
1143 | * STDIN (because the commandline held no -e or filename) | |
1144 | * then we don't close it, we reset it so the code can | |
1145 | * read from STDIN too. | |
1146 | */ | |
1147 | ||
4c84d7f2 | 1148 | if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
3280af22 | 1149 | PerlIO_clearerr(PL_rsfp); |
8990e307 | 1150 | else |
3280af22 | 1151 | (void)PerlIO_close(PL_rsfp); |
4608196e | 1152 | PL_rsfp = NULL; |
463ee0b2 LW |
1153 | return s; |
1154 | } | |
ffb4593c NT |
1155 | |
1156 | /* not at end of file, so we only read another line */ | |
09bef843 SB |
1157 | /* make corresponding updates to old pointers, for yyerror() */ |
1158 | oldprevlen = PL_oldbufptr - PL_bufend; | |
1159 | oldoldprevlen = PL_oldoldbufptr - PL_bufend; | |
1160 | if (PL_last_uni) | |
1161 | oldunilen = PL_last_uni - PL_bufend; | |
1162 | if (PL_last_lop) | |
1163 | oldloplen = PL_last_lop - PL_bufend; | |
3280af22 NIS |
1164 | PL_linestart = PL_bufptr = s + prevlen; |
1165 | PL_bufend = s + SvCUR(PL_linestr); | |
1166 | s = PL_bufptr; | |
09bef843 SB |
1167 | PL_oldbufptr = s + oldprevlen; |
1168 | PL_oldoldbufptr = s + oldoldprevlen; | |
1169 | if (PL_last_uni) | |
1170 | PL_last_uni = s + oldunilen; | |
1171 | if (PL_last_lop) | |
1172 | PL_last_lop = s + oldloplen; | |
a0d0e21e | 1173 | incline(s); |
ffb4593c NT |
1174 | |
1175 | /* debugger active and we're not compiling the debugger code, | |
1176 | * so store the line into the debugger's array of lines | |
1177 | */ | |
65269a95 | 1178 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
5fa550fb | 1179 | update_debugger_info(NULL, PL_bufptr, PL_bufend - PL_bufptr); |
463ee0b2 | 1180 | } |
5db06880 NC |
1181 | |
1182 | #ifdef PERL_MAD | |
1183 | done: | |
1184 | if (PL_madskills) { | |
cd81e915 | 1185 | if (!PL_skipwhite) |
6b29d1f5 | 1186 | PL_skipwhite = newSVpvs(""); |
5db06880 NC |
1187 | curoff = s - SvPVX(PL_linestr); |
1188 | if (curoff - startoff) | |
cd81e915 | 1189 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, |
5db06880 NC |
1190 | curoff - startoff); |
1191 | } | |
1192 | return s; | |
1193 | #endif | |
a687059c | 1194 | } |
378cc40b | 1195 | |
ffb4593c NT |
1196 | /* |
1197 | * S_check_uni | |
1198 | * Check the unary operators to ensure there's no ambiguity in how they're | |
1199 | * used. An ambiguous piece of code would be: | |
1200 | * rand + 5 | |
1201 | * This doesn't mean rand() + 5. Because rand() is a unary operator, | |
1202 | * the +5 is its argument. | |
1203 | */ | |
1204 | ||
76e3520e | 1205 | STATIC void |
cea2e8a9 | 1206 | S_check_uni(pTHX) |
ba106d47 | 1207 | { |
97aff369 | 1208 | dVAR; |
d4c19fe8 AL |
1209 | const char *s; |
1210 | const char *t; | |
2f3197b3 | 1211 | |
3280af22 | 1212 | if (PL_oldoldbufptr != PL_last_uni) |
2f3197b3 | 1213 | return; |
3280af22 NIS |
1214 | while (isSPACE(*PL_last_uni)) |
1215 | PL_last_uni++; | |
c35e046a AL |
1216 | s = PL_last_uni; |
1217 | while (isALNUM_lazy_if(s,UTF) || *s == '-') | |
1218 | s++; | |
3280af22 | 1219 | if ((t = strchr(s, '(')) && t < PL_bufptr) |
a0d0e21e | 1220 | return; |
6136c704 | 1221 | |
0453d815 | 1222 | if (ckWARN_d(WARN_AMBIGUOUS)){ |
9014280d | 1223 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
32d45c1d NC |
1224 | "Warning: Use of \"%.*s\" without parentheses is ambiguous", |
1225 | (int)(s - PL_last_uni), PL_last_uni); | |
0453d815 | 1226 | } |
2f3197b3 LW |
1227 | } |
1228 | ||
ffb4593c NT |
1229 | /* |
1230 | * LOP : macro to build a list operator. Its behaviour has been replaced | |
1231 | * with a subroutine, S_lop() for which LOP is just another name. | |
1232 | */ | |
1233 | ||
a0d0e21e LW |
1234 | #define LOP(f,x) return lop(f,x,s) |
1235 | ||
ffb4593c NT |
1236 | /* |
1237 | * S_lop | |
1238 | * Build a list operator (or something that might be one). The rules: | |
1239 | * - if we have a next token, then it's a list operator [why?] | |
1240 | * - if the next thing is an opening paren, then it's a function | |
1241 | * - else it's a list operator | |
1242 | */ | |
1243 | ||
76e3520e | 1244 | STATIC I32 |
a0be28da | 1245 | S_lop(pTHX_ I32 f, int x, char *s) |
ffed7fef | 1246 | { |
97aff369 | 1247 | dVAR; |
7918f24d NC |
1248 | |
1249 | PERL_ARGS_ASSERT_LOP; | |
1250 | ||
6154021b | 1251 | pl_yylval.ival = f; |
35c8bce7 | 1252 | CLINE; |
3280af22 NIS |
1253 | PL_expect = x; |
1254 | PL_bufptr = s; | |
1255 | PL_last_lop = PL_oldbufptr; | |
eb160463 | 1256 | PL_last_lop_op = (OPCODE)f; |
5db06880 NC |
1257 | #ifdef PERL_MAD |
1258 | if (PL_lasttoke) | |
1259 | return REPORT(LSTOP); | |
1260 | #else | |
3280af22 | 1261 | if (PL_nexttoke) |
bbf60fe6 | 1262 | return REPORT(LSTOP); |
5db06880 | 1263 | #endif |
79072805 | 1264 | if (*s == '(') |
bbf60fe6 | 1265 | return REPORT(FUNC); |
29595ff2 | 1266 | s = PEEKSPACE(s); |
79072805 | 1267 | if (*s == '(') |
bbf60fe6 | 1268 | return REPORT(FUNC); |
79072805 | 1269 | else |
bbf60fe6 | 1270 | return REPORT(LSTOP); |
79072805 LW |
1271 | } |
1272 | ||
5db06880 NC |
1273 | #ifdef PERL_MAD |
1274 | /* | |
1275 | * S_start_force | |
1276 | * Sets up for an eventual force_next(). start_force(0) basically does | |
1277 | * an unshift, while start_force(-1) does a push. yylex removes items | |
1278 | * on the "pop" end. | |
1279 | */ | |
1280 | ||
1281 | STATIC void | |
1282 | S_start_force(pTHX_ int where) | |
1283 | { | |
1284 | int i; | |
1285 | ||
cd81e915 | 1286 | if (where < 0) /* so people can duplicate start_force(PL_curforce) */ |
5db06880 | 1287 | where = PL_lasttoke; |
cd81e915 NC |
1288 | assert(PL_curforce < 0 || PL_curforce == where); |
1289 | if (PL_curforce != where) { | |
5db06880 NC |
1290 | for (i = PL_lasttoke; i > where; --i) { |
1291 | PL_nexttoke[i] = PL_nexttoke[i-1]; | |
1292 | } | |
1293 | PL_lasttoke++; | |
1294 | } | |
cd81e915 | 1295 | if (PL_curforce < 0) /* in case of duplicate start_force() */ |
5db06880 | 1296 | Zero(&PL_nexttoke[where], 1, NEXTTOKE); |
cd81e915 NC |
1297 | PL_curforce = where; |
1298 | if (PL_nextwhite) { | |
5db06880 | 1299 | if (PL_madskills) |
6b29d1f5 | 1300 | curmad('^', newSVpvs("")); |
cd81e915 | 1301 | CURMAD('_', PL_nextwhite); |
5db06880 NC |
1302 | } |
1303 | } | |
1304 | ||
1305 | STATIC void | |
1306 | S_curmad(pTHX_ char slot, SV *sv) | |
1307 | { | |
1308 | MADPROP **where; | |
1309 | ||
1310 | if (!sv) | |
1311 | return; | |
cd81e915 NC |
1312 | if (PL_curforce < 0) |
1313 | where = &PL_thismad; | |
5db06880 | 1314 | else |
cd81e915 | 1315 | where = &PL_nexttoke[PL_curforce].next_mad; |
5db06880 | 1316 | |
cd81e915 | 1317 | if (PL_faketokens) |
76f68e9b | 1318 | sv_setpvs(sv, ""); |
5db06880 NC |
1319 | else { |
1320 | if (!IN_BYTES) { | |
1321 | if (UTF && is_utf8_string((U8*)SvPVX(sv), SvCUR(sv))) | |
1322 | SvUTF8_on(sv); | |
1323 | else if (PL_encoding) { | |
1324 | sv_recode_to_utf8(sv, PL_encoding); | |
1325 | } | |
1326 | } | |
1327 | } | |
1328 | ||
1329 | /* keep a slot open for the head of the list? */ | |
1330 | if (slot != '_' && *where && (*where)->mad_key == '^') { | |
1331 | (*where)->mad_key = slot; | |
daba3364 | 1332 | sv_free(MUTABLE_SV(((*where)->mad_val))); |
5db06880 NC |
1333 | (*where)->mad_val = (void*)sv; |
1334 | } | |
1335 | else | |
1336 | addmad(newMADsv(slot, sv), where, 0); | |
1337 | } | |
1338 | #else | |
b3f24c00 MHM |
1339 | # define start_force(where) NOOP |
1340 | # define curmad(slot, sv) NOOP | |
5db06880 NC |
1341 | #endif |
1342 | ||
ffb4593c NT |
1343 | /* |
1344 | * S_force_next | |
9cbb5ea2 | 1345 | * When the lexer realizes it knows the next token (for instance, |
ffb4593c | 1346 | * it is reordering tokens for the parser) then it can call S_force_next |
9cbb5ea2 | 1347 | * to know what token to return the next time the lexer is called. Caller |
5db06880 NC |
1348 | * will need to set PL_nextval[] (or PL_nexttoke[].next_val with PERL_MAD), |
1349 | * and possibly PL_expect to ensure the lexer handles the token correctly. | |
ffb4593c NT |
1350 | */ |
1351 | ||
4e553d73 | 1352 | STATIC void |
cea2e8a9 | 1353 | S_force_next(pTHX_ I32 type) |
79072805 | 1354 | { |
97aff369 | 1355 | dVAR; |
704d4215 GG |
1356 | #ifdef DEBUGGING |
1357 | if (DEBUG_T_TEST) { | |
1358 | PerlIO_printf(Perl_debug_log, "### forced token:\n"); | |
f05d7009 | 1359 | tokereport(type, &NEXTVAL_NEXTTOKE); |
704d4215 GG |
1360 | } |
1361 | #endif | |
5db06880 | 1362 | #ifdef PERL_MAD |
cd81e915 | 1363 | if (PL_curforce < 0) |
5db06880 | 1364 | start_force(PL_lasttoke); |
cd81e915 | 1365 | PL_nexttoke[PL_curforce].next_type = type; |
5db06880 NC |
1366 | if (PL_lex_state != LEX_KNOWNEXT) |
1367 | PL_lex_defer = PL_lex_state; | |
1368 | PL_lex_state = LEX_KNOWNEXT; | |
1369 | PL_lex_expect = PL_expect; | |
cd81e915 | 1370 | PL_curforce = -1; |
5db06880 | 1371 | #else |
3280af22 NIS |
1372 | PL_nexttype[PL_nexttoke] = type; |
1373 | PL_nexttoke++; | |
1374 | if (PL_lex_state != LEX_KNOWNEXT) { | |
1375 | PL_lex_defer = PL_lex_state; | |
1376 | PL_lex_expect = PL_expect; | |
1377 | PL_lex_state = LEX_KNOWNEXT; | |
79072805 | 1378 | } |
5db06880 | 1379 | #endif |
79072805 LW |
1380 | } |
1381 | ||
d0a148a6 | 1382 | STATIC SV * |
15f169a1 | 1383 | S_newSV_maybe_utf8(pTHX_ const char *const start, STRLEN len) |
d0a148a6 | 1384 | { |
97aff369 | 1385 | dVAR; |
740cce10 NC |
1386 | SV * const sv = newSVpvn_utf8(start, len, |
1387 | UTF && !IN_BYTES | |
1388 | && is_utf8_string((const U8*)start, len)); | |
d0a148a6 NC |
1389 | return sv; |
1390 | } | |
1391 | ||
ffb4593c NT |
1392 | /* |
1393 | * S_force_word | |
1394 | * When the lexer knows the next thing is a word (for instance, it has | |
1395 | * just seen -> and it knows that the next char is a word char, then | |
02b34bbe DM |
1396 | * it calls S_force_word to stick the next word into the PL_nexttoke/val |
1397 | * lookahead. | |
ffb4593c NT |
1398 | * |
1399 | * Arguments: | |
b1b65b59 | 1400 | * char *start : buffer position (must be within PL_linestr) |
02b34bbe | 1401 | * int token : PL_next* will be this type of bare word (e.g., METHOD,WORD) |
ffb4593c NT |
1402 | * int check_keyword : if true, Perl checks to make sure the word isn't |
1403 | * a keyword (do this if the word is a label, e.g. goto FOO) | |
1404 | * int allow_pack : if true, : characters will also be allowed (require, | |
1405 | * use, etc. do this) | |
9cbb5ea2 | 1406 | * int allow_initial_tick : used by the "sub" lexer only. |
ffb4593c NT |
1407 | */ |
1408 | ||
76e3520e | 1409 | STATIC char * |
cea2e8a9 | 1410 | S_force_word(pTHX_ register char *start, int token, int check_keyword, int allow_pack, int allow_initial_tick) |
79072805 | 1411 | { |
97aff369 | 1412 | dVAR; |
463ee0b2 LW |
1413 | register char *s; |
1414 | STRLEN len; | |
4e553d73 | 1415 | |
7918f24d NC |
1416 | PERL_ARGS_ASSERT_FORCE_WORD; |
1417 | ||
29595ff2 | 1418 | start = SKIPSPACE1(start); |
463ee0b2 | 1419 | s = start; |
7e2040f0 | 1420 | if (isIDFIRST_lazy_if(s,UTF) || |
a0d0e21e | 1421 | (allow_pack && *s == ':') || |
15f0808c | 1422 | (allow_initial_tick && *s == '\'') ) |
a0d0e21e | 1423 | { |
3280af22 | 1424 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, allow_pack, &len); |
5458a98a | 1425 | if (check_keyword && keyword(PL_tokenbuf, len, 0)) |
463ee0b2 | 1426 | return start; |
cd81e915 | 1427 | start_force(PL_curforce); |
5db06880 NC |
1428 | if (PL_madskills) |
1429 | curmad('X', newSVpvn(start,s-start)); | |
463ee0b2 | 1430 | if (token == METHOD) { |
29595ff2 | 1431 | s = SKIPSPACE1(s); |
463ee0b2 | 1432 | if (*s == '(') |
3280af22 | 1433 | PL_expect = XTERM; |
463ee0b2 | 1434 | else { |
3280af22 | 1435 | PL_expect = XOPERATOR; |
463ee0b2 | 1436 | } |
79072805 | 1437 | } |
e74e6b3d | 1438 | if (PL_madskills) |
63575281 | 1439 | curmad('g', newSVpvs( "forced" )); |
9ded7720 | 1440 | NEXTVAL_NEXTTOKE.opval |
d0a148a6 NC |
1441 | = (OP*)newSVOP(OP_CONST,0, |
1442 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
9ded7720 | 1443 | NEXTVAL_NEXTTOKE.opval->op_private |= OPpCONST_BARE; |
79072805 LW |
1444 | force_next(token); |
1445 | } | |
1446 | return s; | |
1447 | } | |
1448 | ||
ffb4593c NT |
1449 | /* |
1450 | * S_force_ident | |
9cbb5ea2 | 1451 | * Called when the lexer wants $foo *foo &foo etc, but the program |
ffb4593c NT |
1452 | * text only contains the "foo" portion. The first argument is a pointer |
1453 | * to the "foo", and the second argument is the type symbol to prefix. | |
1454 | * Forces the next token to be a "WORD". | |
9cbb5ea2 | 1455 | * Creates the symbol if it didn't already exist (via gv_fetchpv()). |
ffb4593c NT |
1456 | */ |
1457 | ||
76e3520e | 1458 | STATIC void |
bfed75c6 | 1459 | S_force_ident(pTHX_ register const char *s, int kind) |
79072805 | 1460 | { |
97aff369 | 1461 | dVAR; |
7918f24d NC |
1462 | |
1463 | PERL_ARGS_ASSERT_FORCE_IDENT; | |
1464 | ||
c35e046a | 1465 | if (*s) { |
90e5519e NC |
1466 | const STRLEN len = strlen(s); |
1467 | OP* const o = (OP*)newSVOP(OP_CONST, 0, newSVpvn(s, len)); | |
cd81e915 | 1468 | start_force(PL_curforce); |
9ded7720 | 1469 | NEXTVAL_NEXTTOKE.opval = o; |
79072805 | 1470 | force_next(WORD); |
748a9306 | 1471 | if (kind) { |
11343788 | 1472 | o->op_private = OPpCONST_ENTERED; |
55497cff | 1473 | /* XXX see note in pp_entereval() for why we forgo typo |
1474 | warnings if the symbol must be introduced in an eval. | |
1475 | GSAR 96-10-12 */ | |
90e5519e NC |
1476 | gv_fetchpvn_flags(s, len, |
1477 | PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) | |
1478 | : GV_ADD, | |
1479 | kind == '$' ? SVt_PV : | |
1480 | kind == '@' ? SVt_PVAV : | |
1481 | kind == '%' ? SVt_PVHV : | |
a0d0e21e | 1482 | SVt_PVGV |
90e5519e | 1483 | ); |
748a9306 | 1484 | } |
79072805 LW |
1485 | } |
1486 | } | |
1487 | ||
1571675a GS |
1488 | NV |
1489 | Perl_str_to_version(pTHX_ SV *sv) | |
1490 | { | |
1491 | NV retval = 0.0; | |
1492 | NV nshift = 1.0; | |
1493 | STRLEN len; | |
cfd0369c | 1494 | const char *start = SvPV_const(sv,len); |
9d4ba2ae | 1495 | const char * const end = start + len; |
504618e9 | 1496 | const bool utf = SvUTF8(sv) ? TRUE : FALSE; |
7918f24d NC |
1497 | |
1498 | PERL_ARGS_ASSERT_STR_TO_VERSION; | |
1499 | ||
1571675a | 1500 | while (start < end) { |
ba210ebe | 1501 | STRLEN skip; |
1571675a GS |
1502 | UV n; |
1503 | if (utf) | |
9041c2e3 | 1504 | n = utf8n_to_uvchr((U8*)start, len, &skip, 0); |
1571675a GS |
1505 | else { |
1506 | n = *(U8*)start; | |
1507 | skip = 1; | |
1508 | } | |
1509 | retval += ((NV)n)/nshift; | |
1510 | start += skip; | |
1511 | nshift *= 1000; | |
1512 | } | |
1513 | return retval; | |
1514 | } | |
1515 | ||
4e553d73 | 1516 | /* |
ffb4593c NT |
1517 | * S_force_version |
1518 | * Forces the next token to be a version number. | |
e759cc13 RGS |
1519 | * If the next token appears to be an invalid version number, (e.g. "v2b"), |
1520 | * and if "guessing" is TRUE, then no new token is created (and the caller | |
1521 | * must use an alternative parsing method). | |
ffb4593c NT |
1522 | */ |
1523 | ||
76e3520e | 1524 | STATIC char * |
e759cc13 | 1525 | S_force_version(pTHX_ char *s, int guessing) |
89bfa8cd | 1526 | { |
97aff369 | 1527 | dVAR; |
5f66b61c | 1528 | OP *version = NULL; |
44dcb63b | 1529 | char *d; |
5db06880 NC |
1530 | #ifdef PERL_MAD |
1531 | I32 startoff = s - SvPVX(PL_linestr); | |
1532 | #endif | |
89bfa8cd | 1533 | |
7918f24d NC |
1534 | PERL_ARGS_ASSERT_FORCE_VERSION; |
1535 | ||
29595ff2 | 1536 | s = SKIPSPACE1(s); |
89bfa8cd | 1537 | |
44dcb63b | 1538 | d = s; |
dd629d5b | 1539 | if (*d == 'v') |
44dcb63b | 1540 | d++; |
44dcb63b | 1541 | if (isDIGIT(*d)) { |
e759cc13 RGS |
1542 | while (isDIGIT(*d) || *d == '_' || *d == '.') |
1543 | d++; | |
5db06880 NC |
1544 | #ifdef PERL_MAD |
1545 | if (PL_madskills) { | |
cd81e915 | 1546 | start_force(PL_curforce); |
5db06880 NC |
1547 | curmad('X', newSVpvn(s,d-s)); |
1548 | } | |
1549 | #endif | |
9f3d182e | 1550 | if (*d == ';' || isSPACE(*d) || *d == '}' || !*d) { |
dd629d5b | 1551 | SV *ver; |
6154021b RGS |
1552 | s = scan_num(s, &pl_yylval); |
1553 | version = pl_yylval.opval; | |
dd629d5b GS |
1554 | ver = cSVOPx(version)->op_sv; |
1555 | if (SvPOK(ver) && !SvNIOK(ver)) { | |
862a34c6 | 1556 | SvUPGRADE(ver, SVt_PVNV); |
9d6ce603 | 1557 | SvNV_set(ver, str_to_version(ver)); |
1571675a | 1558 | SvNOK_on(ver); /* hint that it is a version */ |
44dcb63b | 1559 | } |
89bfa8cd | 1560 | } |
5db06880 NC |
1561 | else if (guessing) { |
1562 | #ifdef PERL_MAD | |
1563 | if (PL_madskills) { | |
cd81e915 NC |
1564 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1565 | PL_nextwhite = 0; | |
5db06880 NC |
1566 | s = SvPVX(PL_linestr) + startoff; |
1567 | } | |
1568 | #endif | |
e759cc13 | 1569 | return s; |
5db06880 | 1570 | } |
89bfa8cd | 1571 | } |
1572 | ||
5db06880 NC |
1573 | #ifdef PERL_MAD |
1574 | if (PL_madskills && !version) { | |
cd81e915 NC |
1575 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1576 | PL_nextwhite = 0; | |
5db06880 NC |
1577 | s = SvPVX(PL_linestr) + startoff; |
1578 | } | |
1579 | #endif | |
89bfa8cd | 1580 | /* NOTE: The parser sees the package name and the VERSION swapped */ |
cd81e915 | 1581 | start_force(PL_curforce); |
9ded7720 | 1582 | NEXTVAL_NEXTTOKE.opval = version; |
4e553d73 | 1583 | force_next(WORD); |
89bfa8cd | 1584 | |
e759cc13 | 1585 | return s; |
89bfa8cd | 1586 | } |
1587 | ||
ffb4593c NT |
1588 | /* |
1589 | * S_tokeq | |
1590 | * Tokenize a quoted string passed in as an SV. It finds the next | |
1591 | * chunk, up to end of string or a backslash. It may make a new | |
1592 | * SV containing that chunk (if HINT_NEW_STRING is on). It also | |
1593 | * turns \\ into \. | |
1594 | */ | |
1595 | ||
76e3520e | 1596 | STATIC SV * |
cea2e8a9 | 1597 | S_tokeq(pTHX_ SV *sv) |
79072805 | 1598 | { |
97aff369 | 1599 | dVAR; |
79072805 LW |
1600 | register char *s; |
1601 | register char *send; | |
1602 | register char *d; | |
b3ac6de7 IZ |
1603 | STRLEN len = 0; |
1604 | SV *pv = sv; | |
79072805 | 1605 | |
7918f24d NC |
1606 | PERL_ARGS_ASSERT_TOKEQ; |
1607 | ||
79072805 | 1608 | if (!SvLEN(sv)) |
b3ac6de7 | 1609 | goto finish; |
79072805 | 1610 | |
a0d0e21e | 1611 | s = SvPV_force(sv, len); |
21a311ee | 1612 | if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) |
b3ac6de7 | 1613 | goto finish; |
463ee0b2 | 1614 | send = s + len; |
79072805 LW |
1615 | while (s < send && *s != '\\') |
1616 | s++; | |
1617 | if (s == send) | |
b3ac6de7 | 1618 | goto finish; |
79072805 | 1619 | d = s; |
be4731d2 | 1620 | if ( PL_hints & HINT_NEW_STRING ) { |
59cd0e26 | 1621 | pv = newSVpvn_flags(SvPVX_const(pv), len, SVs_TEMP | SvUTF8(sv)); |
be4731d2 | 1622 | } |
79072805 LW |
1623 | while (s < send) { |
1624 | if (*s == '\\') { | |
a0d0e21e | 1625 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
1626 | s++; /* all that, just for this */ |
1627 | } | |
1628 | *d++ = *s++; | |
1629 | } | |
1630 | *d = '\0'; | |
95a20fc0 | 1631 | SvCUR_set(sv, d - SvPVX_const(sv)); |
b3ac6de7 | 1632 | finish: |
3280af22 | 1633 | if ( PL_hints & HINT_NEW_STRING ) |
eb0d8d16 | 1634 | return new_constant(NULL, 0, "q", sv, pv, "q", 1); |
79072805 LW |
1635 | return sv; |
1636 | } | |
1637 | ||
ffb4593c NT |
1638 | /* |
1639 | * Now come three functions related to double-quote context, | |
1640 | * S_sublex_start, S_sublex_push, and S_sublex_done. They're used when | |
1641 | * converting things like "\u\Lgnat" into ucfirst(lc("gnat")). They | |
1642 | * interact with PL_lex_state, and create fake ( ... ) argument lists | |
1643 | * to handle functions and concatenation. | |
1644 | * They assume that whoever calls them will be setting up a fake | |
1645 | * join call, because each subthing puts a ',' after it. This lets | |
1646 | * "lower \luPpEr" | |
1647 | * become | |
1648 | * join($, , 'lower ', lcfirst( 'uPpEr', ) ,) | |
1649 | * | |
1650 | * (I'm not sure whether the spurious commas at the end of lcfirst's | |
1651 | * arguments and join's arguments are created or not). | |
1652 | */ | |
1653 | ||
1654 | /* | |
1655 | * S_sublex_start | |
6154021b | 1656 | * Assumes that pl_yylval.ival is the op we're creating (e.g. OP_LCFIRST). |
ffb4593c NT |
1657 | * |
1658 | * Pattern matching will set PL_lex_op to the pattern-matching op to | |
6154021b | 1659 | * make (we return THING if pl_yylval.ival is OP_NULL, PMFUNC otherwise). |
ffb4593c NT |
1660 | * |
1661 | * OP_CONST and OP_READLINE are easy--just make the new op and return. | |
1662 | * | |
1663 | * Everything else becomes a FUNC. | |
1664 | * | |
1665 | * Sets PL_lex_state to LEX_INTERPPUSH unless (ival was OP_NULL or we | |
1666 | * had an OP_CONST or OP_READLINE). This just sets us up for a | |
1667 | * call to S_sublex_push(). | |
1668 | */ | |
1669 | ||
76e3520e | 1670 | STATIC I32 |
cea2e8a9 | 1671 | S_sublex_start(pTHX) |
79072805 | 1672 | { |
97aff369 | 1673 | dVAR; |
6154021b | 1674 | register const I32 op_type = pl_yylval.ival; |
79072805 LW |
1675 | |
1676 | if (op_type == OP_NULL) { | |
6154021b | 1677 | pl_yylval.opval = PL_lex_op; |
5f66b61c | 1678 | PL_lex_op = NULL; |
79072805 LW |
1679 | return THING; |
1680 | } | |
1681 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
3280af22 | 1682 | SV *sv = tokeq(PL_lex_stuff); |
b3ac6de7 IZ |
1683 | |
1684 | if (SvTYPE(sv) == SVt_PVIV) { | |
1685 | /* Overloaded constants, nothing fancy: Convert to SVt_PV: */ | |
1686 | STRLEN len; | |
96a5add6 | 1687 | const char * const p = SvPV_const(sv, len); |
740cce10 | 1688 | SV * const nsv = newSVpvn_flags(p, len, SvUTF8(sv)); |
b3ac6de7 IZ |
1689 | SvREFCNT_dec(sv); |
1690 | sv = nsv; | |
4e553d73 | 1691 | } |
6154021b | 1692 | pl_yylval.opval = (OP*)newSVOP(op_type, 0, sv); |
a0714e2c | 1693 | PL_lex_stuff = NULL; |
6f33ba73 RGS |
1694 | /* Allow <FH> // "foo" */ |
1695 | if (op_type == OP_READLINE) | |
1696 | PL_expect = XTERMORDORDOR; | |
79072805 LW |
1697 | return THING; |
1698 | } | |
e3f73d4e RGS |
1699 | else if (op_type == OP_BACKTICK && PL_lex_op) { |
1700 | /* readpipe() vas overriden */ | |
1701 | cSVOPx(cLISTOPx(cUNOPx(PL_lex_op)->op_first)->op_first->op_sibling)->op_sv = tokeq(PL_lex_stuff); | |
6154021b | 1702 | pl_yylval.opval = PL_lex_op; |
9b201d7d | 1703 | PL_lex_op = NULL; |
e3f73d4e RGS |
1704 | PL_lex_stuff = NULL; |
1705 | return THING; | |
1706 | } | |
79072805 | 1707 | |
3280af22 | 1708 | PL_sublex_info.super_state = PL_lex_state; |
eac04b2e | 1709 | PL_sublex_info.sub_inwhat = (U16)op_type; |
3280af22 NIS |
1710 | PL_sublex_info.sub_op = PL_lex_op; |
1711 | PL_lex_state = LEX_INTERPPUSH; | |
55497cff | 1712 | |
3280af22 NIS |
1713 | PL_expect = XTERM; |
1714 | if (PL_lex_op) { | |
6154021b | 1715 | pl_yylval.opval = PL_lex_op; |
5f66b61c | 1716 | PL_lex_op = NULL; |
55497cff | 1717 | return PMFUNC; |
1718 | } | |
1719 | else | |
1720 | return FUNC; | |
1721 | } | |
1722 | ||
ffb4593c NT |
1723 | /* |
1724 | * S_sublex_push | |
1725 | * Create a new scope to save the lexing state. The scope will be | |
1726 | * ended in S_sublex_done. Returns a '(', starting the function arguments | |
1727 | * to the uc, lc, etc. found before. | |
1728 | * Sets PL_lex_state to LEX_INTERPCONCAT. | |
1729 | */ | |
1730 | ||
76e3520e | 1731 | STATIC I32 |
cea2e8a9 | 1732 | S_sublex_push(pTHX) |
55497cff | 1733 | { |
27da23d5 | 1734 | dVAR; |
f46d017c | 1735 | ENTER; |
55497cff | 1736 | |
3280af22 | 1737 | PL_lex_state = PL_sublex_info.super_state; |
651b5b28 | 1738 | SAVEBOOL(PL_lex_dojoin); |
3280af22 | 1739 | SAVEI32(PL_lex_brackets); |
3280af22 NIS |
1740 | SAVEI32(PL_lex_casemods); |
1741 | SAVEI32(PL_lex_starts); | |
651b5b28 | 1742 | SAVEI8(PL_lex_state); |
7766f137 | 1743 | SAVEVPTR(PL_lex_inpat); |
98246f1e | 1744 | SAVEI16(PL_lex_inwhat); |
57843af0 | 1745 | SAVECOPLINE(PL_curcop); |
3280af22 | 1746 | SAVEPPTR(PL_bufptr); |
8452ff4b | 1747 | SAVEPPTR(PL_bufend); |
3280af22 NIS |
1748 | SAVEPPTR(PL_oldbufptr); |
1749 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
1750 | SAVEPPTR(PL_last_lop); |
1751 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
1752 | SAVEPPTR(PL_linestart); |
1753 | SAVESPTR(PL_linestr); | |
8edd5f42 RGS |
1754 | SAVEGENERICPV(PL_lex_brackstack); |
1755 | SAVEGENERICPV(PL_lex_casestack); | |
3280af22 NIS |
1756 | |
1757 | PL_linestr = PL_lex_stuff; | |
a0714e2c | 1758 | PL_lex_stuff = NULL; |
3280af22 | 1759 | |
9cbb5ea2 GS |
1760 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart |
1761 | = SvPVX(PL_linestr); | |
3280af22 | 1762 | PL_bufend += SvCUR(PL_linestr); |
bd61b366 | 1763 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1764 | SAVEFREESV(PL_linestr); |
1765 | ||
1766 | PL_lex_dojoin = FALSE; | |
1767 | PL_lex_brackets = 0; | |
a02a5408 JC |
1768 | Newx(PL_lex_brackstack, 120, char); |
1769 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
1770 | PL_lex_casemods = 0; |
1771 | *PL_lex_casestack = '\0'; | |
1772 | PL_lex_starts = 0; | |
1773 | PL_lex_state = LEX_INTERPCONCAT; | |
eb160463 | 1774 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 NIS |
1775 | |
1776 | PL_lex_inwhat = PL_sublex_info.sub_inwhat; | |
1777 | if (PL_lex_inwhat == OP_MATCH || PL_lex_inwhat == OP_QR || PL_lex_inwhat == OP_SUBST) | |
1778 | PL_lex_inpat = PL_sublex_info.sub_op; | |
79072805 | 1779 | else |
5f66b61c | 1780 | PL_lex_inpat = NULL; |
79072805 | 1781 | |
55497cff | 1782 | return '('; |
79072805 LW |
1783 | } |
1784 | ||
ffb4593c NT |
1785 | /* |
1786 | * S_sublex_done | |
1787 | * Restores lexer state after a S_sublex_push. | |
1788 | */ | |
1789 | ||
76e3520e | 1790 | STATIC I32 |
cea2e8a9 | 1791 | S_sublex_done(pTHX) |
79072805 | 1792 | { |
27da23d5 | 1793 | dVAR; |
3280af22 | 1794 | if (!PL_lex_starts++) { |
396482e1 | 1795 | SV * const sv = newSVpvs(""); |
9aa983d2 JH |
1796 | if (SvUTF8(PL_linestr)) |
1797 | SvUTF8_on(sv); | |
3280af22 | 1798 | PL_expect = XOPERATOR; |
6154021b | 1799 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
79072805 LW |
1800 | return THING; |
1801 | } | |
1802 | ||
3280af22 NIS |
1803 | if (PL_lex_casemods) { /* oops, we've got some unbalanced parens */ |
1804 | PL_lex_state = LEX_INTERPCASEMOD; | |
cea2e8a9 | 1805 | return yylex(); |
79072805 LW |
1806 | } |
1807 | ||
ffb4593c | 1808 | /* Is there a right-hand side to take care of? (s//RHS/ or tr//RHS/) */ |
3280af22 NIS |
1809 | if (PL_lex_repl && (PL_lex_inwhat == OP_SUBST || PL_lex_inwhat == OP_TRANS)) { |
1810 | PL_linestr = PL_lex_repl; | |
1811 | PL_lex_inpat = 0; | |
1812 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
1813 | PL_bufend += SvCUR(PL_linestr); | |
bd61b366 | 1814 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1815 | SAVEFREESV(PL_linestr); |
1816 | PL_lex_dojoin = FALSE; | |
1817 | PL_lex_brackets = 0; | |
3280af22 NIS |
1818 | PL_lex_casemods = 0; |
1819 | *PL_lex_casestack = '\0'; | |
1820 | PL_lex_starts = 0; | |
25da4f38 | 1821 | if (SvEVALED(PL_lex_repl)) { |
3280af22 NIS |
1822 | PL_lex_state = LEX_INTERPNORMAL; |
1823 | PL_lex_starts++; | |
e9fa98b2 HS |
1824 | /* we don't clear PL_lex_repl here, so that we can check later |
1825 | whether this is an evalled subst; that means we rely on the | |
1826 | logic to ensure sublex_done() is called again only via the | |
1827 | branch (in yylex()) that clears PL_lex_repl, else we'll loop */ | |
79072805 | 1828 | } |
e9fa98b2 | 1829 | else { |
3280af22 | 1830 | PL_lex_state = LEX_INTERPCONCAT; |
a0714e2c | 1831 | PL_lex_repl = NULL; |
e9fa98b2 | 1832 | } |
79072805 | 1833 | return ','; |
ffed7fef LW |
1834 | } |
1835 | else { | |
5db06880 NC |
1836 | #ifdef PERL_MAD |
1837 | if (PL_madskills) { | |
cd81e915 NC |
1838 | if (PL_thiswhite) { |
1839 | if (!PL_endwhite) | |
6b29d1f5 | 1840 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
1841 | sv_catsv(PL_endwhite, PL_thiswhite); |
1842 | PL_thiswhite = 0; | |
1843 | } | |
1844 | if (PL_thistoken) | |
76f68e9b | 1845 | sv_setpvs(PL_thistoken,""); |
5db06880 | 1846 | else |
cd81e915 | 1847 | PL_realtokenstart = -1; |
5db06880 NC |
1848 | } |
1849 | #endif | |
f46d017c | 1850 | LEAVE; |
3280af22 NIS |
1851 | PL_bufend = SvPVX(PL_linestr); |
1852 | PL_bufend += SvCUR(PL_linestr); | |
1853 | PL_expect = XOPERATOR; | |
09bef843 | 1854 | PL_sublex_info.sub_inwhat = 0; |
79072805 | 1855 | return ')'; |
ffed7fef LW |
1856 | } |
1857 | } | |
1858 | ||
02aa26ce NT |
1859 | /* |
1860 | scan_const | |
1861 | ||
1862 | Extracts a pattern, double-quoted string, or transliteration. This | |
1863 | is terrifying code. | |
1864 | ||
94def140 | 1865 | It looks at PL_lex_inwhat and PL_lex_inpat to find out whether it's |
3280af22 | 1866 | processing a pattern (PL_lex_inpat is true), a transliteration |
94def140 | 1867 | (PL_lex_inwhat == OP_TRANS is true), or a double-quoted string. |
02aa26ce | 1868 | |
94def140 TS |
1869 | Returns a pointer to the character scanned up to. If this is |
1870 | advanced from the start pointer supplied (i.e. if anything was | |
9b599b2a | 1871 | successfully parsed), will leave an OP for the substring scanned |
6154021b | 1872 | in pl_yylval. Caller must intuit reason for not parsing further |
9b599b2a GS |
1873 | by looking at the next characters herself. |
1874 | ||
02aa26ce NT |
1875 | In patterns: |
1876 | backslashes: | |
1877 | double-quoted style: \r and \n | |
1878 | regexp special ones: \D \s | |
94def140 TS |
1879 | constants: \x31 |
1880 | backrefs: \1 | |
02aa26ce NT |
1881 | case and quoting: \U \Q \E |
1882 | stops on @ and $, but not for $ as tail anchor | |
1883 | ||
1884 | In transliterations: | |
1885 | characters are VERY literal, except for - not at the start or end | |
94def140 TS |
1886 | of the string, which indicates a range. If the range is in bytes, |
1887 | scan_const expands the range to the full set of intermediate | |
1888 | characters. If the range is in utf8, the hyphen is replaced with | |
1889 | a certain range mark which will be handled by pmtrans() in op.c. | |
02aa26ce NT |
1890 | |
1891 | In double-quoted strings: | |
1892 | backslashes: | |
1893 | double-quoted style: \r and \n | |
94def140 TS |
1894 | constants: \x31 |
1895 | deprecated backrefs: \1 (in substitution replacements) | |
02aa26ce NT |
1896 | case and quoting: \U \Q \E |
1897 | stops on @ and $ | |
1898 | ||
1899 | scan_const does *not* construct ops to handle interpolated strings. | |
1900 | It stops processing as soon as it finds an embedded $ or @ variable | |
1901 | and leaves it to the caller to work out what's going on. | |
1902 | ||
94def140 TS |
1903 | embedded arrays (whether in pattern or not) could be: |
1904 | @foo, @::foo, @'foo, @{foo}, @$foo, @+, @-. | |
1905 | ||
1906 | $ in double-quoted strings must be the symbol of an embedded scalar. | |
02aa26ce NT |
1907 | |
1908 | $ in pattern could be $foo or could be tail anchor. Assumption: | |
1909 | it's a tail anchor if $ is the last thing in the string, or if it's | |
94def140 | 1910 | followed by one of "()| \r\n\t" |
02aa26ce NT |
1911 | |
1912 | \1 (backreferences) are turned into $1 | |
1913 | ||
1914 | The structure of the code is | |
1915 | while (there's a character to process) { | |
94def140 TS |
1916 | handle transliteration ranges |
1917 | skip regexp comments /(?#comment)/ and codes /(?{code})/ | |
1918 | skip #-initiated comments in //x patterns | |
1919 | check for embedded arrays | |
02aa26ce NT |
1920 | check for embedded scalars |
1921 | if (backslash) { | |
94def140 TS |
1922 | leave intact backslashes from leaveit (below) |
1923 | deprecate \1 in substitution replacements | |
02aa26ce NT |
1924 | handle string-changing backslashes \l \U \Q \E, etc. |
1925 | switch (what was escaped) { | |
94def140 TS |
1926 | handle \- in a transliteration (becomes a literal -) |
1927 | handle \132 (octal characters) | |
1928 | handle \x15 and \x{1234} (hex characters) | |
1929 | handle \N{name} (named characters) | |
1930 | handle \cV (control characters) | |
1931 | handle printf-style backslashes (\f, \r, \n, etc) | |
02aa26ce NT |
1932 | } (end switch) |
1933 | } (end if backslash) | |
1934 | } (end while character to read) | |
4e553d73 | 1935 | |
02aa26ce NT |
1936 | */ |
1937 | ||
76e3520e | 1938 | STATIC char * |
cea2e8a9 | 1939 | S_scan_const(pTHX_ char *start) |
79072805 | 1940 | { |
97aff369 | 1941 | dVAR; |
3280af22 | 1942 | register char *send = PL_bufend; /* end of the constant */ |
561b68a9 | 1943 | SV *sv = newSV(send - start); /* sv for the constant */ |
02aa26ce NT |
1944 | register char *s = start; /* start of the constant */ |
1945 | register char *d = SvPVX(sv); /* destination for copies */ | |
1946 | bool dorange = FALSE; /* are we in a translit range? */ | |
c2e66d9e | 1947 | bool didrange = FALSE; /* did we just finish a range? */ |
2b9d42f0 NIS |
1948 | I32 has_utf8 = FALSE; /* Output constant is UTF8 */ |
1949 | I32 this_utf8 = UTF; /* The source string is assumed to be UTF8 */ | |
012bcf8d | 1950 | UV uv; |
4c3a8340 TS |
1951 | #ifdef EBCDIC |
1952 | UV literal_endpoint = 0; | |
e294cc5d | 1953 | bool native_range = TRUE; /* turned to FALSE if the first endpoint is Unicode. */ |
4c3a8340 | 1954 | #endif |
012bcf8d | 1955 | |
7918f24d NC |
1956 | PERL_ARGS_ASSERT_SCAN_CONST; |
1957 | ||
2b9d42f0 NIS |
1958 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
1959 | /* If we are doing a trans and we know we want UTF8 set expectation */ | |
1960 | has_utf8 = PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF); | |
1961 | this_utf8 = PL_sublex_info.sub_op->op_private & (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
1962 | } | |
1963 | ||
1964 | ||
79072805 | 1965 | while (s < send || dorange) { |
02aa26ce | 1966 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 1967 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 1968 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 1969 | if (dorange) { |
1ba5c669 JH |
1970 | I32 i; /* current expanded character */ |
1971 | I32 min; /* first character in range */ | |
1972 | I32 max; /* last character in range */ | |
02aa26ce | 1973 | |
e294cc5d JH |
1974 | #ifdef EBCDIC |
1975 | UV uvmax = 0; | |
1976 | #endif | |
1977 | ||
1978 | if (has_utf8 | |
1979 | #ifdef EBCDIC | |
1980 | && !native_range | |
1981 | #endif | |
1982 | ) { | |
9d4ba2ae | 1983 | char * const c = (char*)utf8_hop((U8*)d, -1); |
8973db79 JH |
1984 | char *e = d++; |
1985 | while (e-- > c) | |
1986 | *(e + 1) = *e; | |
25716404 | 1987 | *c = (char)UTF_TO_NATIVE(0xff); |
8973db79 JH |
1988 | /* mark the range as done, and continue */ |
1989 | dorange = FALSE; | |
1990 | didrange = TRUE; | |
1991 | continue; | |
1992 | } | |
2b9d42f0 | 1993 | |
95a20fc0 | 1994 | i = d - SvPVX_const(sv); /* remember current offset */ |
e294cc5d JH |
1995 | #ifdef EBCDIC |
1996 | SvGROW(sv, | |
1997 | SvLEN(sv) + (has_utf8 ? | |
1998 | (512 - UTF_CONTINUATION_MARK + | |
1999 | UNISKIP(0x100)) | |
2000 | : 256)); | |
2001 | /* How many two-byte within 0..255: 128 in UTF-8, | |
2002 | * 96 in UTF-8-mod. */ | |
2003 | #else | |
9cbb5ea2 | 2004 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
e294cc5d | 2005 | #endif |
9cbb5ea2 | 2006 | d = SvPVX(sv) + i; /* refresh d after realloc */ |
e294cc5d JH |
2007 | #ifdef EBCDIC |
2008 | if (has_utf8) { | |
2009 | int j; | |
2010 | for (j = 0; j <= 1; j++) { | |
2011 | char * const c = (char*)utf8_hop((U8*)d, -1); | |
2012 | const UV uv = utf8n_to_uvchr((U8*)c, d - c, NULL, 0); | |
2013 | if (j) | |
2014 | min = (U8)uv; | |
2015 | else if (uv < 256) | |
2016 | max = (U8)uv; | |
2017 | else { | |
2018 | max = (U8)0xff; /* only to \xff */ | |
2019 | uvmax = uv; /* \x{100} to uvmax */ | |
2020 | } | |
2021 | d = c; /* eat endpoint chars */ | |
2022 | } | |
2023 | } | |
2024 | else { | |
2025 | #endif | |
2026 | d -= 2; /* eat the first char and the - */ | |
2027 | min = (U8)*d; /* first char in range */ | |
2028 | max = (U8)d[1]; /* last char in range */ | |
2029 | #ifdef EBCDIC | |
2030 | } | |
2031 | #endif | |
8ada0baa | 2032 | |
c2e66d9e | 2033 | if (min > max) { |
01ec43d0 | 2034 | Perl_croak(aTHX_ |
d1573ac7 | 2035 | "Invalid range \"%c-%c\" in transliteration operator", |
1ba5c669 | 2036 | (char)min, (char)max); |
c2e66d9e GS |
2037 | } |
2038 | ||
c7f1f016 | 2039 | #ifdef EBCDIC |
4c3a8340 TS |
2040 | if (literal_endpoint == 2 && |
2041 | ((isLOWER(min) && isLOWER(max)) || | |
2042 | (isUPPER(min) && isUPPER(max)))) { | |
8ada0baa JH |
2043 | if (isLOWER(min)) { |
2044 | for (i = min; i <= max; i++) | |
2045 | if (isLOWER(i)) | |
db42d148 | 2046 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
2047 | } else { |
2048 | for (i = min; i <= max; i++) | |
2049 | if (isUPPER(i)) | |
db42d148 | 2050 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
2051 | } |
2052 | } | |
2053 | else | |
2054 | #endif | |
2055 | for (i = min; i <= max; i++) | |
e294cc5d JH |
2056 | #ifdef EBCDIC |
2057 | if (has_utf8) { | |
2058 | const U8 ch = (U8)NATIVE_TO_UTF(i); | |
2059 | if (UNI_IS_INVARIANT(ch)) | |
2060 | *d++ = (U8)i; | |
2061 | else { | |
2062 | *d++ = (U8)UTF8_EIGHT_BIT_HI(ch); | |
2063 | *d++ = (U8)UTF8_EIGHT_BIT_LO(ch); | |
2064 | } | |
2065 | } | |
2066 | else | |
2067 | #endif | |
2068 | *d++ = (char)i; | |
2069 | ||
2070 | #ifdef EBCDIC | |
2071 | if (uvmax) { | |
2072 | d = (char*)uvchr_to_utf8((U8*)d, 0x100); | |
2073 | if (uvmax > 0x101) | |
2074 | *d++ = (char)UTF_TO_NATIVE(0xff); | |
2075 | if (uvmax > 0x100) | |
2076 | d = (char*)uvchr_to_utf8((U8*)d, uvmax); | |
2077 | } | |
2078 | #endif | |
02aa26ce NT |
2079 | |
2080 | /* mark the range as done, and continue */ | |
79072805 | 2081 | dorange = FALSE; |
01ec43d0 | 2082 | didrange = TRUE; |
4c3a8340 TS |
2083 | #ifdef EBCDIC |
2084 | literal_endpoint = 0; | |
2085 | #endif | |
79072805 | 2086 | continue; |
4e553d73 | 2087 | } |
02aa26ce NT |
2088 | |
2089 | /* range begins (ignore - as first or last char) */ | |
79072805 | 2090 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 2091 | if (didrange) { |
1fafa243 | 2092 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 2093 | } |
e294cc5d JH |
2094 | if (has_utf8 |
2095 | #ifdef EBCDIC | |
2096 | && !native_range | |
2097 | #endif | |
2098 | ) { | |
25716404 | 2099 | *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
2100 | s++; |
2101 | continue; | |
2102 | } | |
79072805 LW |
2103 | dorange = TRUE; |
2104 | s++; | |
01ec43d0 GS |
2105 | } |
2106 | else { | |
2107 | didrange = FALSE; | |
4c3a8340 TS |
2108 | #ifdef EBCDIC |
2109 | literal_endpoint = 0; | |
e294cc5d | 2110 | native_range = TRUE; |
4c3a8340 | 2111 | #endif |
01ec43d0 | 2112 | } |
79072805 | 2113 | } |
02aa26ce NT |
2114 | |
2115 | /* if we get here, we're not doing a transliteration */ | |
2116 | ||
0f5d15d6 IZ |
2117 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
2118 | except for the last char, which will be done separately. */ | |
3280af22 | 2119 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 | 2120 | if (s[2] == '#') { |
e994fd66 | 2121 | while (s+1 < send && *s != ')') |
db42d148 | 2122 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
155aba94 GS |
2123 | } |
2124 | else if (s[2] == '{' /* This should match regcomp.c */ | |
67edc0c9 | 2125 | || (s[2] == '?' && s[3] == '{')) |
155aba94 | 2126 | { |
cc6b7395 | 2127 | I32 count = 1; |
0f5d15d6 | 2128 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
2129 | char c; |
2130 | ||
d9f97599 GS |
2131 | while (count && (c = *regparse)) { |
2132 | if (c == '\\' && regparse[1]) | |
2133 | regparse++; | |
4e553d73 | 2134 | else if (c == '{') |
cc6b7395 | 2135 | count++; |
4e553d73 | 2136 | else if (c == '}') |
cc6b7395 | 2137 | count--; |
d9f97599 | 2138 | regparse++; |
cc6b7395 | 2139 | } |
e994fd66 | 2140 | if (*regparse != ')') |
5bdf89e7 | 2141 | regparse--; /* Leave one char for continuation. */ |
0f5d15d6 | 2142 | while (s < regparse) |
db42d148 | 2143 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
cc6b7395 | 2144 | } |
748a9306 | 2145 | } |
02aa26ce NT |
2146 | |
2147 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
2148 | else if (*s == '#' && PL_lex_inpat && |
2149 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 | 2150 | while (s+1 < send && *s != '\n') |
db42d148 | 2151 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
748a9306 | 2152 | } |
02aa26ce | 2153 | |
5d1d4326 | 2154 | /* check for embedded arrays |
da6eedaa | 2155 | (@foo, @::foo, @'foo, @{foo}, @$foo, @+, @-) |
5d1d4326 | 2156 | */ |
1749ea0d TS |
2157 | else if (*s == '@' && s[1]) { |
2158 | if (isALNUM_lazy_if(s+1,UTF)) | |
2159 | break; | |
2160 | if (strchr(":'{$", s[1])) | |
2161 | break; | |
2162 | if (!PL_lex_inpat && (s[1] == '+' || s[1] == '-')) | |
2163 | break; /* in regexp, neither @+ nor @- are interpolated */ | |
2164 | } | |
02aa26ce NT |
2165 | |
2166 | /* check for embedded scalars. only stop if we're sure it's a | |
2167 | variable. | |
2168 | */ | |
79072805 | 2169 | else if (*s == '$') { |
3280af22 | 2170 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 2171 | break; |
77772344 B |
2172 | if (s + 1 < send && !strchr("()| \r\n\t", s[1])) { |
2173 | if (s[1] == '\\' && ckWARN(WARN_AMBIGUOUS)) { | |
2174 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), | |
2175 | "Possible unintended interpolation of $\\ in regex"); | |
2176 | } | |
79072805 | 2177 | break; /* in regexp, $ might be tail anchor */ |
77772344 | 2178 | } |
79072805 | 2179 | } |
02aa26ce | 2180 | |
2b9d42f0 NIS |
2181 | /* End of else if chain - OP_TRANS rejoin rest */ |
2182 | ||
02aa26ce | 2183 | /* backslashes */ |
79072805 LW |
2184 | if (*s == '\\' && s+1 < send) { |
2185 | s++; | |
02aa26ce | 2186 | |
02aa26ce | 2187 | /* deprecate \1 in strings and substitution replacements */ |
3280af22 | 2188 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 2189 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 2190 | { |
599cee73 | 2191 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 2192 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s); |
79072805 LW |
2193 | *--s = '$'; |
2194 | break; | |
2195 | } | |
02aa26ce NT |
2196 | |
2197 | /* string-change backslash escapes */ | |
3280af22 | 2198 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
2199 | --s; |
2200 | break; | |
2201 | } | |
cc74c5bd TS |
2202 | /* skip any other backslash escapes in a pattern */ |
2203 | else if (PL_lex_inpat) { | |
2204 | *d++ = NATIVE_TO_NEED(has_utf8,'\\'); | |
2205 | goto default_action; | |
2206 | } | |
02aa26ce NT |
2207 | |
2208 | /* if we get here, it's either a quoted -, or a digit */ | |
79072805 | 2209 | switch (*s) { |
02aa26ce NT |
2210 | |
2211 | /* quoted - in transliterations */ | |
79072805 | 2212 | case '-': |
3280af22 | 2213 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
2214 | *d++ = *s++; |
2215 | continue; | |
2216 | } | |
2217 | /* FALL THROUGH */ | |
2218 | default: | |
11b8faa4 | 2219 | { |
86f97054 | 2220 | if ((isALPHA(*s) || isDIGIT(*s)) && |
041457d9 | 2221 | ckWARN(WARN_MISC)) |
9014280d | 2222 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
e294cc5d JH |
2223 | "Unrecognized escape \\%c passed through", |
2224 | *s); | |
11b8faa4 | 2225 | /* default action is to copy the quoted character */ |
f9a63242 | 2226 | goto default_action; |
11b8faa4 | 2227 | } |
02aa26ce NT |
2228 | |
2229 | /* \132 indicates an octal constant */ | |
79072805 LW |
2230 | case '0': case '1': case '2': case '3': |
2231 | case '4': case '5': case '6': case '7': | |
ba210ebe | 2232 | { |
53305cf1 NC |
2233 | I32 flags = 0; |
2234 | STRLEN len = 3; | |
2235 | uv = grok_oct(s, &len, &flags, NULL); | |
ba210ebe JH |
2236 | s += len; |
2237 | } | |
012bcf8d | 2238 | goto NUM_ESCAPE_INSERT; |
02aa26ce NT |
2239 | |
2240 | /* \x24 indicates a hex constant */ | |
79072805 | 2241 | case 'x': |
a0ed51b3 LW |
2242 | ++s; |
2243 | if (*s == '{') { | |
9d4ba2ae | 2244 | char* const e = strchr(s, '}'); |
a4c04bdc NC |
2245 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
2246 | PERL_SCAN_DISALLOW_PREFIX; | |
53305cf1 | 2247 | STRLEN len; |
355860ce | 2248 | |
53305cf1 | 2249 | ++s; |
adaeee49 | 2250 | if (!e) { |
a0ed51b3 | 2251 | yyerror("Missing right brace on \\x{}"); |
355860ce | 2252 | continue; |
ba210ebe | 2253 | } |
53305cf1 NC |
2254 | len = e - s; |
2255 | uv = grok_hex(s, &len, &flags, NULL); | |
ba210ebe | 2256 | s = e + 1; |
a0ed51b3 LW |
2257 | } |
2258 | else { | |
ba210ebe | 2259 | { |
53305cf1 | 2260 | STRLEN len = 2; |
a4c04bdc | 2261 | I32 flags = PERL_SCAN_DISALLOW_PREFIX; |
53305cf1 | 2262 | uv = grok_hex(s, &len, &flags, NULL); |
ba210ebe JH |
2263 | s += len; |
2264 | } | |
012bcf8d GS |
2265 | } |
2266 | ||
2267 | NUM_ESCAPE_INSERT: | |
2268 | /* Insert oct or hex escaped character. | |
301d3d20 | 2269 | * There will always enough room in sv since such |
db42d148 | 2270 | * escapes will be longer than any UTF-8 sequence |
301d3d20 | 2271 | * they can end up as. */ |
ba7cea30 | 2272 | |
c7f1f016 NIS |
2273 | /* We need to map to chars to ASCII before doing the tests |
2274 | to cover EBCDIC | |
2275 | */ | |
c4d5f83a | 2276 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(uv))) { |
9aa983d2 | 2277 | if (!has_utf8 && uv > 255) { |
301d3d20 JH |
2278 | /* Might need to recode whatever we have |
2279 | * accumulated so far if it contains any | |
2280 | * hibit chars. | |
2281 | * | |
2282 | * (Can't we keep track of that and avoid | |
2283 | * this rescan? --jhi) | |
012bcf8d | 2284 | */ |
c7f1f016 | 2285 | int hicount = 0; |
63cd0674 NIS |
2286 | U8 *c; |
2287 | for (c = (U8 *) SvPVX(sv); c < (U8 *)d; c++) { | |
c4d5f83a | 2288 | if (!NATIVE_IS_INVARIANT(*c)) { |
012bcf8d | 2289 | hicount++; |
db42d148 | 2290 | } |
012bcf8d | 2291 | } |
63cd0674 | 2292 | if (hicount) { |
9d4ba2ae | 2293 | const STRLEN offset = d - SvPVX_const(sv); |
db42d148 NIS |
2294 | U8 *src, *dst; |
2295 | d = SvGROW(sv, SvLEN(sv) + hicount + 1) + offset; | |
2296 | src = (U8 *)d - 1; | |
2297 | dst = src+hicount; | |
2298 | d += hicount; | |
cfd0369c | 2299 | while (src >= (const U8 *)SvPVX_const(sv)) { |
c4d5f83a | 2300 | if (!NATIVE_IS_INVARIANT(*src)) { |
9d4ba2ae | 2301 | const U8 ch = NATIVE_TO_ASCII(*src); |
eb160463 GS |
2302 | *dst-- = (U8)UTF8_EIGHT_BIT_LO(ch); |
2303 | *dst-- = (U8)UTF8_EIGHT_BIT_HI(ch); | |
012bcf8d GS |
2304 | } |
2305 | else { | |
63cd0674 | 2306 | *dst-- = *src; |
012bcf8d | 2307 | } |
c7f1f016 | 2308 | src--; |
012bcf8d GS |
2309 | } |
2310 | } | |
2311 | } | |
2312 | ||
9aa983d2 | 2313 | if (has_utf8 || uv > 255) { |
9041c2e3 | 2314 | d = (char*)uvchr_to_utf8((U8*)d, uv); |
4e553d73 | 2315 | has_utf8 = TRUE; |
f9a63242 JH |
2316 | if (PL_lex_inwhat == OP_TRANS && |
2317 | PL_sublex_info.sub_op) { | |
2318 | PL_sublex_info.sub_op->op_private |= | |
2319 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
2320 | : OPpTRANS_TO_UTF); | |
f9a63242 | 2321 | } |
e294cc5d JH |
2322 | #ifdef EBCDIC |
2323 | if (uv > 255 && !dorange) | |
2324 | native_range = FALSE; | |
2325 | #endif | |
012bcf8d | 2326 | } |
a0ed51b3 | 2327 | else { |
012bcf8d | 2328 | *d++ = (char)uv; |
a0ed51b3 | 2329 | } |
012bcf8d GS |
2330 | } |
2331 | else { | |
c4d5f83a | 2332 | *d++ = (char) uv; |
a0ed51b3 | 2333 | } |
79072805 | 2334 | continue; |
02aa26ce | 2335 | |
b239daa5 | 2336 | /* \N{LATIN SMALL LETTER A} is a named character */ |
4a2d328f | 2337 | case 'N': |
55eda711 | 2338 | ++s; |
423cee85 JH |
2339 | if (*s == '{') { |
2340 | char* e = strchr(s, '}'); | |
155aba94 | 2341 | SV *res; |
423cee85 | 2342 | STRLEN len; |
cfd0369c | 2343 | const char *str; |
4e553d73 | 2344 | |
423cee85 | 2345 | if (!e) { |
5777a3f7 | 2346 | yyerror("Missing right brace on \\N{}"); |
423cee85 JH |
2347 | e = s - 1; |
2348 | goto cont_scan; | |
2349 | } | |
dbc0d4f2 JH |
2350 | if (e > s + 2 && s[1] == 'U' && s[2] == '+') { |
2351 | /* \N{U+...} */ | |
2352 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | | |
2353 | PERL_SCAN_DISALLOW_PREFIX; | |
2354 | s += 3; | |
2355 | len = e - s; | |
2356 | uv = grok_hex(s, &len, &flags, NULL); | |
b57a0404 JH |
2357 | if ( e > s && len != (STRLEN)(e - s) ) { |
2358 | uv = 0xFFFD; | |
fc8cd66c | 2359 | } |
dbc0d4f2 JH |
2360 | s = e + 1; |
2361 | goto NUM_ESCAPE_INSERT; | |
2362 | } | |
55eda711 | 2363 | res = newSVpvn(s + 1, e - s - 1); |
bd61b366 | 2364 | res = new_constant( NULL, 0, "charnames", |
eb0d8d16 | 2365 | res, NULL, s - 2, e - s + 3 ); |
f9a63242 JH |
2366 | if (has_utf8) |
2367 | sv_utf8_upgrade(res); | |
cfd0369c | 2368 | str = SvPV_const(res,len); |
1c47067b JH |
2369 | #ifdef EBCDIC_NEVER_MIND |
2370 | /* charnames uses pack U and that has been | |
2371 | * recently changed to do the below uni->native | |
2372 | * mapping, so this would be redundant (and wrong, | |
2373 | * the code point would be doubly converted). | |
2374 | * But leave this in just in case the pack U change | |
2375 | * gets revoked, but the semantics is still | |
2376 | * desireable for charnames. --jhi */ | |
cddc7ef4 | 2377 | { |
cfd0369c | 2378 | UV uv = utf8_to_uvchr((const U8*)str, 0); |
cddc7ef4 JH |
2379 | |
2380 | if (uv < 0x100) { | |
89ebb4a3 | 2381 | U8 tmpbuf[UTF8_MAXBYTES+1], *d; |
cddc7ef4 JH |
2382 | |
2383 | d = uvchr_to_utf8(tmpbuf, UNI_TO_NATIVE(uv)); | |
2384 | sv_setpvn(res, (char *)tmpbuf, d - tmpbuf); | |
cfd0369c | 2385 | str = SvPV_const(res, len); |
cddc7ef4 JH |
2386 | } |
2387 | } | |
2388 | #endif | |
89491803 | 2389 | if (!has_utf8 && SvUTF8(res)) { |
9d4ba2ae | 2390 | const char * const ostart = SvPVX_const(sv); |
f08d6ad9 GS |
2391 | SvCUR_set(sv, d - ostart); |
2392 | SvPOK_on(sv); | |
e4f3eed8 | 2393 | *d = '\0'; |
f08d6ad9 | 2394 | sv_utf8_upgrade(sv); |
d2f449dd | 2395 | /* this just broke our allocation above... */ |
eb160463 | 2396 | SvGROW(sv, (STRLEN)(send - start)); |
f08d6ad9 | 2397 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 2398 | has_utf8 = TRUE; |
f08d6ad9 | 2399 | } |
eb160463 | 2400 | if (len > (STRLEN)(e - s + 4)) { /* I _guess_ 4 is \N{} --jhi */ |
9d4ba2ae | 2401 | const char * const odest = SvPVX_const(sv); |
423cee85 | 2402 | |
8973db79 | 2403 | SvGROW(sv, (SvLEN(sv) + len - (e - s + 4))); |
423cee85 JH |
2404 | d = SvPVX(sv) + (d - odest); |
2405 | } | |
e294cc5d JH |
2406 | #ifdef EBCDIC |
2407 | if (!dorange) | |
2408 | native_range = FALSE; /* \N{} is guessed to be Unicode */ | |
2409 | #endif | |
423cee85 JH |
2410 | Copy(str, d, len, char); |
2411 | d += len; | |
2412 | SvREFCNT_dec(res); | |
2413 | cont_scan: | |
2414 | s = e + 1; | |
2415 | } | |
2416 | else | |
5777a3f7 | 2417 | yyerror("Missing braces on \\N{}"); |
423cee85 JH |
2418 | continue; |
2419 | ||
02aa26ce | 2420 | /* \c is a control character */ |
79072805 LW |
2421 | case 'c': |
2422 | s++; | |
961ce445 | 2423 | if (s < send) { |
ba210ebe | 2424 | U8 c = *s++; |
c7f1f016 NIS |
2425 | #ifdef EBCDIC |
2426 | if (isLOWER(c)) | |
2427 | c = toUPPER(c); | |
2428 | #endif | |
db42d148 | 2429 | *d++ = NATIVE_TO_NEED(has_utf8,toCTRL(c)); |
ba210ebe | 2430 | } |
961ce445 RGS |
2431 | else { |
2432 | yyerror("Missing control char name in \\c"); | |
2433 | } | |
79072805 | 2434 | continue; |
02aa26ce NT |
2435 | |
2436 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 | 2437 | case 'b': |
db42d148 | 2438 | *d++ = NATIVE_TO_NEED(has_utf8,'\b'); |
79072805 LW |
2439 | break; |
2440 | case 'n': | |
db42d148 | 2441 | *d++ = NATIVE_TO_NEED(has_utf8,'\n'); |
79072805 LW |
2442 | break; |
2443 | case 'r': | |
db42d148 | 2444 | *d++ = NATIVE_TO_NEED(has_utf8,'\r'); |
79072805 LW |
2445 | break; |
2446 | case 'f': | |
db42d148 | 2447 | *d++ = NATIVE_TO_NEED(has_utf8,'\f'); |
79072805 LW |
2448 | break; |
2449 | case 't': | |
db42d148 | 2450 | *d++ = NATIVE_TO_NEED(has_utf8,'\t'); |
79072805 | 2451 | break; |
34a3fe2a | 2452 | case 'e': |
db42d148 | 2453 | *d++ = ASCII_TO_NEED(has_utf8,'\033'); |
34a3fe2a PP |
2454 | break; |
2455 | case 'a': | |
db42d148 | 2456 | *d++ = ASCII_TO_NEED(has_utf8,'\007'); |
79072805 | 2457 | break; |
02aa26ce NT |
2458 | } /* end switch */ |
2459 | ||
79072805 LW |
2460 | s++; |
2461 | continue; | |
02aa26ce | 2462 | } /* end if (backslash) */ |
4c3a8340 TS |
2463 | #ifdef EBCDIC |
2464 | else | |
2465 | literal_endpoint++; | |
2466 | #endif | |
02aa26ce | 2467 | |
f9a63242 | 2468 | default_action: |
2b9d42f0 NIS |
2469 | /* If we started with encoded form, or already know we want it |
2470 | and then encode the next character */ | |
2471 | if ((has_utf8 || this_utf8) && !NATIVE_IS_INVARIANT((U8)(*s))) { | |
2472 | STRLEN len = 1; | |
5f66b61c AL |
2473 | const UV nextuv = (this_utf8) ? utf8n_to_uvchr((U8*)s, send - s, &len, 0) : (UV) ((U8) *s); |
2474 | const STRLEN need = UNISKIP(NATIVE_TO_UNI(nextuv)); | |
2b9d42f0 NIS |
2475 | s += len; |
2476 | if (need > len) { | |
2477 | /* encoded value larger than old, need extra space (NOTE: SvCUR() not set here) */ | |
9d4ba2ae | 2478 | const STRLEN off = d - SvPVX_const(sv); |
2b9d42f0 NIS |
2479 | d = SvGROW(sv, SvLEN(sv) + (need-len)) + off; |
2480 | } | |
5f66b61c | 2481 | d = (char*)uvchr_to_utf8((U8*)d, nextuv); |
2b9d42f0 | 2482 | has_utf8 = TRUE; |
e294cc5d JH |
2483 | #ifdef EBCDIC |
2484 | if (uv > 255 && !dorange) | |
2485 | native_range = FALSE; | |
2486 | #endif | |
2b9d42f0 NIS |
2487 | } |
2488 | else { | |
2489 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
2490 | } | |
02aa26ce NT |
2491 | } /* while loop to process each character */ |
2492 | ||
2493 | /* terminate the string and set up the sv */ | |
79072805 | 2494 | *d = '\0'; |
95a20fc0 | 2495 | SvCUR_set(sv, d - SvPVX_const(sv)); |
2b9d42f0 | 2496 | if (SvCUR(sv) >= SvLEN(sv)) |
d0063567 | 2497 | Perl_croak(aTHX_ "panic: constant overflowed allocated space"); |
2b9d42f0 | 2498 | |
79072805 | 2499 | SvPOK_on(sv); |
9f4817db | 2500 | if (PL_encoding && !has_utf8) { |
d0063567 DK |
2501 | sv_recode_to_utf8(sv, PL_encoding); |
2502 | if (SvUTF8(sv)) | |
2503 | has_utf8 = TRUE; | |
9f4817db | 2504 | } |
2b9d42f0 | 2505 | if (has_utf8) { |
7e2040f0 | 2506 | SvUTF8_on(sv); |
2b9d42f0 | 2507 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
d0063567 | 2508 | PL_sublex_info.sub_op->op_private |= |
2b9d42f0 NIS |
2509 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); |
2510 | } | |
2511 | } | |
79072805 | 2512 | |
02aa26ce | 2513 | /* shrink the sv if we allocated more than we used */ |
79072805 | 2514 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
1da4ca5f | 2515 | SvPV_shrink_to_cur(sv); |
79072805 | 2516 | } |
02aa26ce | 2517 | |
6154021b | 2518 | /* return the substring (via pl_yylval) only if we parsed anything */ |
3280af22 | 2519 | if (s > PL_bufptr) { |
eb0d8d16 NC |
2520 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) { |
2521 | const char *const key = PL_lex_inpat ? "qr" : "q"; | |
2522 | const STRLEN keylen = PL_lex_inpat ? 2 : 1; | |
2523 | const char *type; | |
2524 | STRLEN typelen; | |
2525 | ||
2526 | if (PL_lex_inwhat == OP_TRANS) { | |
2527 | type = "tr"; | |
2528 | typelen = 2; | |
2529 | } else if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) { | |
2530 | type = "s"; | |
2531 | typelen = 1; | |
2532 | } else { | |
2533 | type = "qq"; | |
2534 | typelen = 2; | |
2535 | } | |
2536 | ||
2537 | sv = S_new_constant(aTHX_ start, s - start, key, keylen, sv, NULL, | |
2538 | type, typelen); | |
2539 | } | |
6154021b | 2540 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 2541 | } else |
8990e307 | 2542 | SvREFCNT_dec(sv); |
79072805 LW |
2543 | return s; |
2544 | } | |
2545 | ||
ffb4593c NT |
2546 | /* S_intuit_more |
2547 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
2548 | * FALSE otherwise. | |
ffb4593c NT |
2549 | * |
2550 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
2551 | * | |
2552 | * ->[ and ->{ return TRUE | |
2553 | * { and [ outside a pattern are always subscripts, so return TRUE | |
2554 | * if we're outside a pattern and it's not { or [, then return FALSE | |
2555 | * if we're in a pattern and the first char is a { | |
2556 | * {4,5} (any digits around the comma) returns FALSE | |
2557 | * if we're in a pattern and the first char is a [ | |
2558 | * [] returns FALSE | |
2559 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
2560 | * character class or not. It has to deal with things like | |
2561 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
2562 | * anything else returns TRUE | |
2563 | */ | |
2564 | ||
9cbb5ea2 GS |
2565 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
2566 | ||
76e3520e | 2567 | STATIC int |
cea2e8a9 | 2568 | S_intuit_more(pTHX_ register char *s) |
79072805 | 2569 | { |
97aff369 | 2570 | dVAR; |
7918f24d NC |
2571 | |
2572 | PERL_ARGS_ASSERT_INTUIT_MORE; | |
2573 | ||
3280af22 | 2574 | if (PL_lex_brackets) |
79072805 LW |
2575 | return TRUE; |
2576 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
2577 | return TRUE; | |
2578 | if (*s != '{' && *s != '[') | |
2579 | return FALSE; | |
3280af22 | 2580 | if (!PL_lex_inpat) |
79072805 LW |
2581 | return TRUE; |
2582 | ||
2583 | /* In a pattern, so maybe we have {n,m}. */ | |
2584 | if (*s == '{') { | |
2585 | s++; | |
2586 | if (!isDIGIT(*s)) | |
2587 | return TRUE; | |
2588 | while (isDIGIT(*s)) | |
2589 | s++; | |
2590 | if (*s == ',') | |
2591 | s++; | |
2592 | while (isDIGIT(*s)) | |
2593 | s++; | |
2594 | if (*s == '}') | |
2595 | return FALSE; | |
2596 | return TRUE; | |
2597 | ||
2598 | } | |
2599 | ||
2600 | /* On the other hand, maybe we have a character class */ | |
2601 | ||
2602 | s++; | |
2603 | if (*s == ']' || *s == '^') | |
2604 | return FALSE; | |
2605 | else { | |
ffb4593c | 2606 | /* this is terrifying, and it works */ |
79072805 LW |
2607 | int weight = 2; /* let's weigh the evidence */ |
2608 | char seen[256]; | |
f27ffc4a | 2609 | unsigned char un_char = 255, last_un_char; |
9d4ba2ae | 2610 | const char * const send = strchr(s,']'); |
3280af22 | 2611 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
2612 | |
2613 | if (!send) /* has to be an expression */ | |
2614 | return TRUE; | |
2615 | ||
2616 | Zero(seen,256,char); | |
2617 | if (*s == '$') | |
2618 | weight -= 3; | |
2619 | else if (isDIGIT(*s)) { | |
2620 | if (s[1] != ']') { | |
2621 | if (isDIGIT(s[1]) && s[2] == ']') | |
2622 | weight -= 10; | |
2623 | } | |
2624 | else | |
2625 | weight -= 100; | |
2626 | } | |
2627 | for (; s < send; s++) { | |
2628 | last_un_char = un_char; | |
2629 | un_char = (unsigned char)*s; | |
2630 | switch (*s) { | |
2631 | case '@': | |
2632 | case '&': | |
2633 | case '$': | |
2634 | weight -= seen[un_char] * 10; | |
7e2040f0 | 2635 | if (isALNUM_lazy_if(s+1,UTF)) { |
90e5519e | 2636 | int len; |
8903cb82 | 2637 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
90e5519e NC |
2638 | len = (int)strlen(tmpbuf); |
2639 | if (len > 1 && gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PV)) | |
79072805 LW |
2640 | weight -= 100; |
2641 | else | |
2642 | weight -= 10; | |
2643 | } | |
2644 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
2645 | strchr("[#!%*<>()-=",s[1])) { |
2646 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
2647 | weight -= 10; |
2648 | else | |
2649 | weight -= 1; | |
2650 | } | |
2651 | break; | |
2652 | case '\\': | |
2653 | un_char = 254; | |
2654 | if (s[1]) { | |
93a17b20 | 2655 | if (strchr("wds]",s[1])) |
79072805 | 2656 | weight += 100; |
10edeb5d | 2657 | else if (seen[(U8)'\''] || seen[(U8)'"']) |
79072805 | 2658 | weight += 1; |
93a17b20 | 2659 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
2660 | weight += 40; |
2661 | else if (isDIGIT(s[1])) { | |
2662 | weight += 40; | |
2663 | while (s[1] && isDIGIT(s[1])) | |
2664 | s++; | |
2665 | } | |
2666 | } | |
2667 | else | |
2668 | weight += 100; | |
2669 | break; | |
2670 | case '-': | |
2671 | if (s[1] == '\\') | |
2672 | weight += 50; | |
93a17b20 | 2673 | if (strchr("aA01! ",last_un_char)) |
79072805 | 2674 | weight += 30; |
93a17b20 | 2675 | if (strchr("zZ79~",s[1])) |
79072805 | 2676 | weight += 30; |
f27ffc4a GS |
2677 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
2678 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
2679 | break; |
2680 | default: | |
3792a11b NC |
2681 | if (!isALNUM(last_un_char) |
2682 | && !(last_un_char == '$' || last_un_char == '@' | |
2683 | || last_un_char == '&') | |
2684 | && isALPHA(*s) && s[1] && isALPHA(s[1])) { | |
79072805 LW |
2685 | char *d = tmpbuf; |
2686 | while (isALPHA(*s)) | |
2687 | *d++ = *s++; | |
2688 | *d = '\0'; | |
5458a98a | 2689 | if (keyword(tmpbuf, d - tmpbuf, 0)) |
79072805 LW |
2690 | weight -= 150; |
2691 | } | |
2692 | if (un_char == last_un_char + 1) | |
2693 | weight += 5; | |
2694 | weight -= seen[un_char]; | |
2695 | break; | |
2696 | } | |
2697 | seen[un_char]++; | |
2698 | } | |
2699 | if (weight >= 0) /* probably a character class */ | |
2700 | return FALSE; | |
2701 | } | |
2702 | ||
2703 | return TRUE; | |
2704 | } | |
ffed7fef | 2705 | |
ffb4593c NT |
2706 | /* |
2707 | * S_intuit_method | |
2708 | * | |
2709 | * Does all the checking to disambiguate | |
2710 | * foo bar | |
2711 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
2712 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
2713 | * | |
2714 | * First argument is the stuff after the first token, e.g. "bar". | |
2715 | * | |
2716 | * Not a method if bar is a filehandle. | |
2717 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
2718 | * Not a method if it's really "Foo $bar" | |
2719 | * Method if it's "foo $bar" | |
2720 | * Not a method if it's really "print foo $bar" | |
2721 | * Method if it's really "foo package::" (interpreted as package->foo) | |
8f8cf39c | 2722 | * Not a method if bar is known to be a subroutine ("sub bar; foo bar") |
3cb0bbe5 | 2723 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
2724 | * => |
2725 | */ | |
2726 | ||
76e3520e | 2727 | STATIC int |
62d55b22 | 2728 | S_intuit_method(pTHX_ char *start, GV *gv, CV *cv) |
a0d0e21e | 2729 | { |
97aff369 | 2730 | dVAR; |
a0d0e21e | 2731 | char *s = start + (*start == '$'); |
3280af22 | 2732 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
2733 | STRLEN len; |
2734 | GV* indirgv; | |
5db06880 NC |
2735 | #ifdef PERL_MAD |
2736 | int soff; | |
2737 | #endif | |
a0d0e21e | 2738 | |
7918f24d NC |
2739 | PERL_ARGS_ASSERT_INTUIT_METHOD; |
2740 | ||
a0d0e21e | 2741 | if (gv) { |
62d55b22 | 2742 | if (SvTYPE(gv) == SVt_PVGV && GvIO(gv)) |
a0d0e21e | 2743 | return 0; |
62d55b22 NC |
2744 | if (cv) { |
2745 | if (SvPOK(cv)) { | |
2746 | const char *proto = SvPVX_const(cv); | |
2747 | if (proto) { | |
2748 | if (*proto == ';') | |
2749 | proto++; | |
2750 | if (*proto == '*') | |
2751 | return 0; | |
2752 | } | |
b6c543e3 IZ |
2753 | } |
2754 | } else | |
c35e046a | 2755 | gv = NULL; |
a0d0e21e | 2756 | } |
8903cb82 | 2757 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
2758 | /* start is the beginning of the possible filehandle/object, |
2759 | * and s is the end of it | |
2760 | * tmpbuf is a copy of it | |
2761 | */ | |
2762 | ||
a0d0e21e | 2763 | if (*start == '$') { |
3ef1310e RGS |
2764 | if (gv || PL_last_lop_op == OP_PRINT || PL_last_lop_op == OP_SAY || |
2765 | isUPPER(*PL_tokenbuf)) | |
a0d0e21e | 2766 | return 0; |
5db06880 NC |
2767 | #ifdef PERL_MAD |
2768 | len = start - SvPVX(PL_linestr); | |
2769 | #endif | |
29595ff2 | 2770 | s = PEEKSPACE(s); |
f0092767 | 2771 | #ifdef PERL_MAD |
5db06880 NC |
2772 | start = SvPVX(PL_linestr) + len; |
2773 | #endif | |
3280af22 NIS |
2774 | PL_bufptr = start; |
2775 | PL_expect = XREF; | |
a0d0e21e LW |
2776 | return *s == '(' ? FUNCMETH : METHOD; |
2777 | } | |
5458a98a | 2778 | if (!keyword(tmpbuf, len, 0)) { |
c3e0f903 GS |
2779 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
2780 | len -= 2; | |
2781 | tmpbuf[len] = '\0'; | |
5db06880 NC |
2782 | #ifdef PERL_MAD |
2783 | soff = s - SvPVX(PL_linestr); | |
2784 | #endif | |
c3e0f903 GS |
2785 | goto bare_package; |
2786 | } | |
90e5519e | 2787 | indirgv = gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PVCV); |
8ebc5c01 | 2788 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
2789 | return 0; |
2790 | /* filehandle or package name makes it a method */ | |
da51bb9b | 2791 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, 0)) { |
5db06880 NC |
2792 | #ifdef PERL_MAD |
2793 | soff = s - SvPVX(PL_linestr); | |
2794 | #endif | |
29595ff2 | 2795 | s = PEEKSPACE(s); |
3280af22 | 2796 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 2797 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 2798 | bare_package: |
cd81e915 | 2799 | start_force(PL_curforce); |
9ded7720 | 2800 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, |
79cb57f6 | 2801 | newSVpvn(tmpbuf,len)); |
9ded7720 | 2802 | NEXTVAL_NEXTTOKE.opval->op_private = OPpCONST_BARE; |
5db06880 NC |
2803 | if (PL_madskills) |
2804 | curmad('X', newSVpvn(start,SvPVX(PL_linestr) + soff - start)); | |
3280af22 | 2805 | PL_expect = XTERM; |
a0d0e21e | 2806 | force_next(WORD); |
3280af22 | 2807 | PL_bufptr = s; |
5db06880 NC |
2808 | #ifdef PERL_MAD |
2809 | PL_bufptr = SvPVX(PL_linestr) + soff; /* restart before space */ | |
2810 | #endif | |
a0d0e21e LW |
2811 | return *s == '(' ? FUNCMETH : METHOD; |
2812 | } | |
2813 | } | |
2814 | return 0; | |
2815 | } | |
2816 | ||
16d20bd9 | 2817 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 2818 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
2819 | * Note that the filter function only applies to the current source file |
2820 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
2821 | * | |
2822 | * The datasv parameter (which may be NULL) can be used to pass | |
2823 | * private data to this instance of the filter. The filter function | |
2824 | * can recover the SV using the FILTER_DATA macro and use it to | |
2825 | * store private buffers and state information. | |
2826 | * | |
2827 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 2828 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 2829 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
2830 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
2831 | * private use must be set using malloc'd pointers. | |
2832 | */ | |
16d20bd9 AD |
2833 | |
2834 | SV * | |
864dbfa3 | 2835 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 2836 | { |
97aff369 | 2837 | dVAR; |
f4c556ac | 2838 | if (!funcp) |
a0714e2c | 2839 | return NULL; |
f4c556ac | 2840 | |
5486870f DM |
2841 | if (!PL_parser) |
2842 | return NULL; | |
2843 | ||
3280af22 NIS |
2844 | if (!PL_rsfp_filters) |
2845 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 2846 | if (!datasv) |
561b68a9 | 2847 | datasv = newSV(0); |
862a34c6 | 2848 | SvUPGRADE(datasv, SVt_PVIO); |
8141890a | 2849 | IoANY(datasv) = FPTR2DPTR(void *, funcp); /* stash funcp into spare field */ |
e0c19803 | 2850 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac | 2851 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
55662e27 JH |
2852 | FPTR2DPTR(void *, IoANY(datasv)), |
2853 | SvPV_nolen(datasv))); | |
3280af22 NIS |
2854 | av_unshift(PL_rsfp_filters, 1); |
2855 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
2856 | return(datasv); |
2857 | } | |
4e553d73 | 2858 | |
16d20bd9 AD |
2859 | |
2860 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 2861 | void |
864dbfa3 | 2862 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 2863 | { |
97aff369 | 2864 | dVAR; |
e0c19803 | 2865 | SV *datasv; |
24801a4b | 2866 | |
7918f24d NC |
2867 | PERL_ARGS_ASSERT_FILTER_DEL; |
2868 | ||
33073adb | 2869 | #ifdef DEBUGGING |
55662e27 JH |
2870 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", |
2871 | FPTR2DPTR(void*, funcp))); | |
33073adb | 2872 | #endif |
5486870f | 2873 | if (!PL_parser || !PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
2874 | return; |
2875 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 2876 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
8141890a | 2877 | if (IoANY(datasv) == FPTR2DPTR(void *, funcp)) { |
e0c19803 | 2878 | IoFLAGS(datasv) &= ~IOf_FAKE_DIRP; |
4755096e | 2879 | IoANY(datasv) = (void *)NULL; |
3280af22 | 2880 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 2881 | |
16d20bd9 AD |
2882 | return; |
2883 | } | |
2884 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 2885 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
2886 | } |
2887 | ||
2888 | ||
1de9afcd RGS |
2889 | /* Invoke the idxth filter function for the current rsfp. */ |
2890 | /* maxlen 0 = read one text line */ | |
16d20bd9 | 2891 | I32 |
864dbfa3 | 2892 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
a0d0e21e | 2893 | { |
97aff369 | 2894 | dVAR; |
16d20bd9 AD |
2895 | filter_t funcp; |
2896 | SV *datasv = NULL; | |
f482118e NC |
2897 | /* This API is bad. It should have been using unsigned int for maxlen. |
2898 | Not sure if we want to change the API, but if not we should sanity | |
2899 | check the value here. */ | |
39cd7a59 NC |
2900 | const unsigned int correct_length |
2901 | = maxlen < 0 ? | |
2902 | #ifdef PERL_MICRO | |
2903 | 0x7FFFFFFF | |
2904 | #else | |
2905 | INT_MAX | |
2906 | #endif | |
2907 | : maxlen; | |
e50aee73 | 2908 | |
7918f24d NC |
2909 | PERL_ARGS_ASSERT_FILTER_READ; |
2910 | ||
5486870f | 2911 | if (!PL_parser || !PL_rsfp_filters) |
16d20bd9 | 2912 | return -1; |
1de9afcd | 2913 | if (idx > AvFILLp(PL_rsfp_filters)) { /* Any more filters? */ |
16d20bd9 AD |
2914 | /* Provide a default input filter to make life easy. */ |
2915 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
2916 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2917 | "filter_read %d: from rsfp\n", idx)); | |
f482118e | 2918 | if (correct_length) { |
16d20bd9 AD |
2919 | /* Want a block */ |
2920 | int len ; | |
f54cb97a | 2921 | const int old_len = SvCUR(buf_sv); |
16d20bd9 AD |
2922 | |
2923 | /* ensure buf_sv is large enough */ | |
f482118e NC |
2924 | SvGROW(buf_sv, (STRLEN)(old_len + correct_length)) ; |
2925 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, | |
2926 | correct_length)) <= 0) { | |
3280af22 | 2927 | if (PerlIO_error(PL_rsfp)) |
37120919 AD |
2928 | return -1; /* error */ |
2929 | else | |
2930 | return 0 ; /* end of file */ | |
2931 | } | |
16d20bd9 AD |
2932 | SvCUR_set(buf_sv, old_len + len) ; |
2933 | } else { | |
2934 | /* Want a line */ | |
3280af22 NIS |
2935 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
2936 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
2937 | return -1; /* error */ |
2938 | else | |
2939 | return 0 ; /* end of file */ | |
2940 | } | |
16d20bd9 AD |
2941 | } |
2942 | return SvCUR(buf_sv); | |
2943 | } | |
2944 | /* Skip this filter slot if filter has been deleted */ | |
1de9afcd | 2945 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef) { |
f4c556ac GS |
2946 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2947 | "filter_read %d: skipped (filter deleted)\n", | |
2948 | idx)); | |
f482118e | 2949 | return FILTER_READ(idx+1, buf_sv, correct_length); /* recurse */ |
16d20bd9 AD |
2950 | } |
2951 | /* Get function pointer hidden within datasv */ | |
8141890a | 2952 | funcp = DPTR2FPTR(filter_t, IoANY(datasv)); |
f4c556ac GS |
2953 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2954 | "filter_read %d: via function %p (%s)\n", | |
ca0270c4 | 2955 | idx, (void*)datasv, SvPV_nolen_const(datasv))); |
16d20bd9 AD |
2956 | /* Call function. The function is expected to */ |
2957 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 2958 | /* Return: <0:error, =0:eof, >0:not eof */ |
f482118e | 2959 | return (*funcp)(aTHX_ idx, buf_sv, correct_length); |
16d20bd9 AD |
2960 | } |
2961 | ||
76e3520e | 2962 | STATIC char * |
cea2e8a9 | 2963 | S_filter_gets(pTHX_ register SV *sv, register PerlIO *fp, STRLEN append) |
16d20bd9 | 2964 | { |
97aff369 | 2965 | dVAR; |
7918f24d NC |
2966 | |
2967 | PERL_ARGS_ASSERT_FILTER_GETS; | |
2968 | ||
c39cd008 | 2969 | #ifdef PERL_CR_FILTER |
3280af22 | 2970 | if (!PL_rsfp_filters) { |
c39cd008 | 2971 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
2972 | } |
2973 | #endif | |
3280af22 | 2974 | if (PL_rsfp_filters) { |
55497cff | 2975 | if (!append) |
2976 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
2977 | if (FILTER_READ(0, sv, 0) > 0) |
2978 | return ( SvPVX(sv) ) ; | |
2979 | else | |
bd61b366 | 2980 | return NULL ; |
16d20bd9 | 2981 | } |
9d116dd7 | 2982 | else |
fd049845 | 2983 | return (sv_gets(sv, fp, append)); |
a0d0e21e LW |
2984 | } |
2985 | ||
01ec43d0 | 2986 | STATIC HV * |
9bde8eb0 | 2987 | S_find_in_my_stash(pTHX_ const char *pkgname, STRLEN len) |
def3634b | 2988 | { |
97aff369 | 2989 | dVAR; |
def3634b GS |
2990 | GV *gv; |
2991 | ||
7918f24d NC |
2992 | PERL_ARGS_ASSERT_FIND_IN_MY_STASH; |
2993 | ||
01ec43d0 | 2994 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
2995 | return PL_curstash; |
2996 | ||
2997 | if (len > 2 && | |
2998 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
90e5519e | 2999 | (gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVHV))) |
01ec43d0 GS |
3000 | { |
3001 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
3002 | } |
3003 | ||
3004 | /* use constant CLASS => 'MyClass' */ | |
c35e046a AL |
3005 | gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVCV); |
3006 | if (gv && GvCV(gv)) { | |
3007 | SV * const sv = cv_const_sv(GvCV(gv)); | |
3008 | if (sv) | |
9bde8eb0 | 3009 | pkgname = SvPV_const(sv, len); |
def3634b GS |
3010 | } |
3011 | ||
9bde8eb0 | 3012 | return gv_stashpvn(pkgname, len, 0); |
def3634b | 3013 | } |
a0d0e21e | 3014 | |
e3f73d4e RGS |
3015 | /* |
3016 | * S_readpipe_override | |
3017 | * Check whether readpipe() is overriden, and generates the appropriate | |
3018 | * optree, provided sublex_start() is called afterwards. | |
3019 | */ | |
3020 | STATIC void | |
1d51329b | 3021 | S_readpipe_override(pTHX) |
e3f73d4e RGS |
3022 | { |
3023 | GV **gvp; | |
3024 | GV *gv_readpipe = gv_fetchpvs("readpipe", GV_NOTQUAL, SVt_PVCV); | |
6154021b | 3025 | pl_yylval.ival = OP_BACKTICK; |
e3f73d4e RGS |
3026 | if ((gv_readpipe |
3027 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe)) | |
3028 | || | |
3029 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readpipe", FALSE)) | |
d5e716f5 | 3030 | && (gv_readpipe = *gvp) && isGV_with_GP(gv_readpipe) |
e3f73d4e RGS |
3031 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe))) |
3032 | { | |
3033 | PL_lex_op = (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
3034 | append_elem(OP_LIST, | |
3035 | newSVOP(OP_CONST, 0, &PL_sv_undef), /* value will be read later */ | |
3036 | newCVREF(0, newGVOP(OP_GV, 0, gv_readpipe)))); | |
3037 | } | |
e3f73d4e RGS |
3038 | } |
3039 | ||
5db06880 NC |
3040 | #ifdef PERL_MAD |
3041 | /* | |
3042 | * Perl_madlex | |
3043 | * The intent of this yylex wrapper is to minimize the changes to the | |
3044 | * tokener when we aren't interested in collecting madprops. It remains | |
3045 | * to be seen how successful this strategy will be... | |
3046 | */ | |
3047 | ||
3048 | int | |
3049 | Perl_madlex(pTHX) | |
3050 | { | |
3051 | int optype; | |
3052 | char *s = PL_bufptr; | |
3053 | ||
cd81e915 NC |
3054 | /* make sure PL_thiswhite is initialized */ |
3055 | PL_thiswhite = 0; | |
3056 | PL_thismad = 0; | |
5db06880 | 3057 | |
cd81e915 | 3058 | /* just do what yylex would do on pending identifier; leave PL_thiswhite alone */ |
5db06880 NC |
3059 | if (PL_pending_ident) |
3060 | return S_pending_ident(aTHX); | |
3061 | ||
3062 | /* previous token ate up our whitespace? */ | |
cd81e915 NC |
3063 | if (!PL_lasttoke && PL_nextwhite) { |
3064 | PL_thiswhite = PL_nextwhite; | |
3065 | PL_nextwhite = 0; | |
5db06880 NC |
3066 | } |
3067 | ||
3068 | /* isolate the token, and figure out where it is without whitespace */ | |
cd81e915 NC |
3069 | PL_realtokenstart = -1; |
3070 | PL_thistoken = 0; | |
5db06880 NC |
3071 | optype = yylex(); |
3072 | s = PL_bufptr; | |
cd81e915 | 3073 | assert(PL_curforce < 0); |
5db06880 | 3074 | |
cd81e915 NC |
3075 | if (!PL_thismad || PL_thismad->mad_key == '^') { /* not forced already? */ |
3076 | if (!PL_thistoken) { | |
3077 | if (PL_realtokenstart < 0 || !CopLINE(PL_curcop)) | |
6b29d1f5 | 3078 | PL_thistoken = newSVpvs(""); |
5db06880 | 3079 | else { |
c35e046a | 3080 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 | 3081 | PL_thistoken = newSVpvn(tstart, s - tstart); |
5db06880 NC |
3082 | } |
3083 | } | |
cd81e915 NC |
3084 | if (PL_thismad) /* install head */ |
3085 | CURMAD('X', PL_thistoken); | |
5db06880 NC |
3086 | } |
3087 | ||
3088 | /* last whitespace of a sublex? */ | |
cd81e915 NC |
3089 | if (optype == ')' && PL_endwhite) { |
3090 | CURMAD('X', PL_endwhite); | |
5db06880 NC |
3091 | } |
3092 | ||
cd81e915 | 3093 | if (!PL_thismad) { |
5db06880 NC |
3094 | |
3095 | /* if no whitespace and we're at EOF, bail. Otherwise fake EOF below. */ | |
cd81e915 NC |
3096 | if (!PL_thiswhite && !PL_endwhite && !optype) { |
3097 | sv_free(PL_thistoken); | |
3098 | PL_thistoken = 0; | |
5db06880 NC |
3099 | return 0; |
3100 | } | |
3101 | ||
3102 | /* put off final whitespace till peg */ | |
3103 | if (optype == ';' && !PL_rsfp) { | |
cd81e915 NC |
3104 | PL_nextwhite = PL_thiswhite; |
3105 | PL_thiswhite = 0; | |
5db06880 | 3106 | } |
cd81e915 NC |
3107 | else if (PL_thisopen) { |
3108 | CURMAD('q', PL_thisopen); | |
3109 | if (PL_thistoken) | |
3110 | sv_free(PL_thistoken); | |
3111 | PL_thistoken = 0; | |
5db06880 NC |
3112 | } |
3113 | else { | |
3114 | /* Store actual token text as madprop X */ | |
cd81e915 | 3115 | CURMAD('X', PL_thistoken); |
5db06880 NC |
3116 | } |
3117 | ||
cd81e915 | 3118 | if (PL_thiswhite) { |
5db06880 | 3119 | /* add preceding whitespace as madprop _ */ |
cd81e915 | 3120 | CURMAD('_', PL_thiswhite); |
5db06880 NC |
3121 | } |
3122 | ||
cd81e915 | 3123 | if (PL_thisstuff) { |
5db06880 | 3124 | /* add quoted material as madprop = */ |
cd81e915 | 3125 | CURMAD('=', PL_thisstuff); |
5db06880 NC |
3126 | } |
3127 | ||
cd81e915 | 3128 | if (PL_thisclose) { |
5db06880 | 3129 | /* add terminating quote as madprop Q */ |
cd81e915 | 3130 | CURMAD('Q', PL_thisclose); |
5db06880 NC |
3131 | } |
3132 | } | |
3133 | ||
3134 | /* special processing based on optype */ | |
3135 | ||
3136 | switch (optype) { | |
3137 | ||
3138 | /* opval doesn't need a TOKEN since it can already store mp */ | |
3139 | case WORD: | |
3140 | case METHOD: | |
3141 | case FUNCMETH: | |
3142 | case THING: | |
3143 | case PMFUNC: | |
3144 | case PRIVATEREF: | |
3145 | case FUNC0SUB: | |
3146 | case UNIOPSUB: | |
3147 | case LSTOPSUB: | |
6154021b RGS |
3148 | if (pl_yylval.opval) |
3149 | append_madprops(PL_thismad, pl_yylval.opval, 0); | |
cd81e915 | 3150 | PL_thismad = 0; |
5db06880 NC |
3151 | return optype; |
3152 | ||
3153 | /* fake EOF */ | |
3154 | case 0: | |
3155 | optype = PEG; | |
cd81e915 NC |
3156 | if (PL_endwhite) { |
3157 | addmad(newMADsv('p', PL_endwhite), &PL_thismad, 0); | |
3158 | PL_endwhite = 0; | |
5db06880 NC |
3159 | } |
3160 | break; | |
3161 | ||
3162 | case ']': | |
3163 | case '}': | |
cd81e915 | 3164 | if (PL_faketokens) |
5db06880 NC |
3165 | break; |
3166 | /* remember any fake bracket that lexer is about to discard */ | |
3167 | if (PL_lex_brackets == 1 && | |
3168 | ((expectation)PL_lex_brackstack[0] & XFAKEBRACK)) | |
3169 | { | |
3170 | s = PL_bufptr; | |
3171 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
3172 | s++; | |
3173 | if (*s == '}') { | |
cd81e915 NC |
3174 | PL_thiswhite = newSVpvn(PL_bufptr, ++s - PL_bufptr); |
3175 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3176 | PL_thiswhite = 0; | |
5db06880 NC |
3177 | PL_bufptr = s - 1; |
3178 | break; /* don't bother looking for trailing comment */ | |
3179 | } | |
3180 | else | |
3181 | s = PL_bufptr; | |
3182 | } | |
3183 | if (optype == ']') | |
3184 | break; | |
3185 | /* FALLTHROUGH */ | |
3186 | ||
3187 | /* attach a trailing comment to its statement instead of next token */ | |
3188 | case ';': | |
cd81e915 | 3189 | if (PL_faketokens) |
5db06880 NC |
3190 | break; |
3191 | if (PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == optype) { | |
3192 | s = PL_bufptr; | |
3193 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
3194 | s++; | |
3195 | if (*s == '\n' || *s == '#') { | |
3196 | while (s < PL_bufend && *s != '\n') | |
3197 | s++; | |
3198 | if (s < PL_bufend) | |
3199 | s++; | |
cd81e915 NC |
3200 | PL_thiswhite = newSVpvn(PL_bufptr, s - PL_bufptr); |
3201 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3202 | PL_thiswhite = 0; | |
5db06880 NC |
3203 | PL_bufptr = s; |
3204 | } | |
3205 | } | |
3206 | break; | |
3207 | ||
3208 | /* pval */ | |
3209 | case LABEL: | |
3210 | break; | |
3211 | ||
3212 | /* ival */ | |
3213 | default: | |
3214 | break; | |
3215 | ||
3216 | } | |
3217 | ||
3218 | /* Create new token struct. Note: opvals return early above. */ | |
6154021b | 3219 | pl_yylval.tkval = newTOKEN(optype, pl_yylval, PL_thismad); |
cd81e915 | 3220 | PL_thismad = 0; |
5db06880 NC |
3221 | return optype; |
3222 | } | |
3223 | #endif | |
3224 | ||
468aa647 | 3225 | STATIC char * |
cc6ed77d | 3226 | S_tokenize_use(pTHX_ int is_use, char *s) { |
97aff369 | 3227 | dVAR; |
7918f24d NC |
3228 | |
3229 | PERL_ARGS_ASSERT_TOKENIZE_USE; | |
3230 | ||
468aa647 RGS |
3231 | if (PL_expect != XSTATE) |
3232 | yyerror(Perl_form(aTHX_ "\"%s\" not allowed in expression", | |
3233 | is_use ? "use" : "no")); | |
29595ff2 | 3234 | s = SKIPSPACE1(s); |
468aa647 RGS |
3235 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { |
3236 | s = force_version(s, TRUE); | |
29595ff2 | 3237 | if (*s == ';' || (s = SKIPSPACE1(s), *s == ';')) { |
cd81e915 | 3238 | start_force(PL_curforce); |
9ded7720 | 3239 | NEXTVAL_NEXTTOKE.opval = NULL; |
468aa647 RGS |
3240 | force_next(WORD); |
3241 | } | |
3242 | else if (*s == 'v') { | |
3243 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3244 | s = force_version(s, FALSE); | |
3245 | } | |
3246 | } | |
3247 | else { | |
3248 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3249 | s = force_version(s, FALSE); | |
3250 | } | |
6154021b | 3251 | pl_yylval.ival = is_use; |
468aa647 RGS |
3252 | return s; |
3253 | } | |
748a9306 | 3254 | #ifdef DEBUGGING |
27da23d5 | 3255 | static const char* const exp_name[] = |
09bef843 | 3256 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
27308ded | 3257 | "ATTRTERM", "TERMBLOCK", "TERMORDORDOR" |
09bef843 | 3258 | }; |
748a9306 | 3259 | #endif |
463ee0b2 | 3260 | |
02aa26ce NT |
3261 | /* |
3262 | yylex | |
3263 | ||
3264 | Works out what to call the token just pulled out of the input | |
3265 | stream. The yacc parser takes care of taking the ops we return and | |
3266 | stitching them into a tree. | |
3267 | ||
3268 | Returns: | |
3269 | PRIVATEREF | |
3270 | ||
3271 | Structure: | |
3272 | if read an identifier | |
3273 | if we're in a my declaration | |
3274 | croak if they tried to say my($foo::bar) | |
3275 | build the ops for a my() declaration | |
3276 | if it's an access to a my() variable | |
3277 | are we in a sort block? | |
3278 | croak if my($a); $a <=> $b | |
3279 | build ops for access to a my() variable | |
3280 | if in a dq string, and they've said @foo and we can't find @foo | |
3281 | croak | |
3282 | build ops for a bareword | |
3283 | if we already built the token before, use it. | |
3284 | */ | |
3285 | ||
20141f0e | 3286 | |
dba4d153 JH |
3287 | #ifdef __SC__ |
3288 | #pragma segment Perl_yylex | |
3289 | #endif | |
dba4d153 | 3290 | int |
dba4d153 | 3291 | Perl_yylex(pTHX) |
20141f0e | 3292 | { |
97aff369 | 3293 | dVAR; |
3afc138a | 3294 | register char *s = PL_bufptr; |
378cc40b | 3295 | register char *d; |
463ee0b2 | 3296 | STRLEN len; |
aa7440fb | 3297 | bool bof = FALSE; |
a687059c | 3298 | |
10edeb5d JH |
3299 | /* orig_keyword, gvp, and gv are initialized here because |
3300 | * jump to the label just_a_word_zero can bypass their | |
3301 | * initialization later. */ | |
3302 | I32 orig_keyword = 0; | |
3303 | GV *gv = NULL; | |
3304 | GV **gvp = NULL; | |
3305 | ||
bbf60fe6 | 3306 | DEBUG_T( { |
396482e1 | 3307 | SV* tmp = newSVpvs(""); |
b6007c36 DM |
3308 | PerlIO_printf(Perl_debug_log, "### %"IVdf":LEX_%s/X%s %s\n", |
3309 | (IV)CopLINE(PL_curcop), | |
3310 | lex_state_names[PL_lex_state], | |
3311 | exp_name[PL_expect], | |
3312 | pv_display(tmp, s, strlen(s), 0, 60)); | |
3313 | SvREFCNT_dec(tmp); | |
bbf60fe6 | 3314 | } ); |
02aa26ce | 3315 | /* check if there's an identifier for us to look at */ |
ba979b31 | 3316 | if (PL_pending_ident) |
bbf60fe6 | 3317 | return REPORT(S_pending_ident(aTHX)); |
bbce6d69 | 3318 | |
02aa26ce NT |
3319 | /* no identifier pending identification */ |
3320 | ||
3280af22 | 3321 | switch (PL_lex_state) { |
79072805 LW |
3322 | #ifdef COMMENTARY |
3323 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
3324 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
3325 | break; | |
3326 | #endif | |
3327 | ||
09bef843 | 3328 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 3329 | case LEX_KNOWNEXT: |
5db06880 NC |
3330 | #ifdef PERL_MAD |
3331 | PL_lasttoke--; | |
6154021b | 3332 | pl_yylval = PL_nexttoke[PL_lasttoke].next_val; |
5db06880 | 3333 | if (PL_madskills) { |
cd81e915 | 3334 | PL_thismad = PL_nexttoke[PL_lasttoke].next_mad; |
5db06880 | 3335 | PL_nexttoke[PL_lasttoke].next_mad = 0; |
cd81e915 | 3336 | if (PL_thismad && PL_thismad->mad_key == '_') { |
daba3364 | 3337 | PL_thiswhite = MUTABLE_SV(PL_thismad->mad_val); |
cd81e915 NC |
3338 | PL_thismad->mad_val = 0; |
3339 | mad_free(PL_thismad); | |
3340 | PL_thismad = 0; | |
5db06880 NC |
3341 | } |
3342 | } | |
3343 | if (!PL_lasttoke) { | |
3344 | PL_lex_state = PL_lex_defer; | |
3345 | PL_expect = PL_lex_expect; | |
3346 | PL_lex_defer = LEX_NORMAL; | |
3347 | if (!PL_nexttoke[PL_lasttoke].next_type) | |
3348 | return yylex(); | |
3349 | } | |
3350 | #else | |
3280af22 | 3351 | PL_nexttoke--; |
6154021b | 3352 | pl_yylval = PL_nextval[PL_nexttoke]; |
3280af22 NIS |
3353 | if (!PL_nexttoke) { |
3354 | PL_lex_state = PL_lex_defer; | |
3355 | PL_expect = PL_lex_expect; | |
3356 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 3357 | } |
5db06880 NC |
3358 | #endif |
3359 | #ifdef PERL_MAD | |
3360 | /* FIXME - can these be merged? */ | |
3361 | return(PL_nexttoke[PL_lasttoke].next_type); | |
3362 | #else | |
bbf60fe6 | 3363 | return REPORT(PL_nexttype[PL_nexttoke]); |
5db06880 | 3364 | #endif |
79072805 | 3365 | |
02aa26ce | 3366 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 3367 | when we get here, PL_bufptr is at the \ |
02aa26ce | 3368 | */ |
79072805 LW |
3369 | case LEX_INTERPCASEMOD: |
3370 | #ifdef DEBUGGING | |
3280af22 | 3371 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 3372 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 3373 | #endif |
02aa26ce | 3374 | /* handle \E or end of string */ |
3280af22 | 3375 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
02aa26ce | 3376 | /* if at a \E */ |
3280af22 | 3377 | if (PL_lex_casemods) { |
f54cb97a | 3378 | const char oldmod = PL_lex_casestack[--PL_lex_casemods]; |
3280af22 | 3379 | PL_lex_casestack[PL_lex_casemods] = '\0'; |
02aa26ce | 3380 | |
3792a11b NC |
3381 | if (PL_bufptr != PL_bufend |
3382 | && (oldmod == 'L' || oldmod == 'U' || oldmod == 'Q')) { | |
3280af22 NIS |
3383 | PL_bufptr += 2; |
3384 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3385 | #ifdef PERL_MAD |
3386 | if (PL_madskills) | |
6b29d1f5 | 3387 | PL_thistoken = newSVpvs("\\E"); |
5db06880 | 3388 | #endif |
a0d0e21e | 3389 | } |
bbf60fe6 | 3390 | return REPORT(')'); |
79072805 | 3391 | } |
5db06880 NC |
3392 | #ifdef PERL_MAD |
3393 | while (PL_bufptr != PL_bufend && | |
3394 | PL_bufptr[0] == '\\' && PL_bufptr[1] == 'E') { | |
cd81e915 | 3395 | if (!PL_thiswhite) |
6b29d1f5 | 3396 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3397 | sv_catpvn(PL_thiswhite, PL_bufptr, 2); |
5db06880 NC |
3398 | PL_bufptr += 2; |
3399 | } | |
3400 | #else | |
3280af22 NIS |
3401 | if (PL_bufptr != PL_bufend) |
3402 | PL_bufptr += 2; | |
5db06880 | 3403 | #endif |
3280af22 | 3404 | PL_lex_state = LEX_INTERPCONCAT; |
cea2e8a9 | 3405 | return yylex(); |
79072805 LW |
3406 | } |
3407 | else { | |
607df283 | 3408 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3409 | "### Saw case modifier\n"); }); |
3280af22 | 3410 | s = PL_bufptr + 1; |
6e909404 | 3411 | if (s[1] == '\\' && s[2] == 'E') { |
5db06880 | 3412 | #ifdef PERL_MAD |
cd81e915 | 3413 | if (!PL_thiswhite) |
6b29d1f5 | 3414 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3415 | sv_catpvn(PL_thiswhite, PL_bufptr, 4); |
5db06880 | 3416 | #endif |
89122651 | 3417 | PL_bufptr = s + 3; |
6e909404 JH |
3418 | PL_lex_state = LEX_INTERPCONCAT; |
3419 | return yylex(); | |
a0d0e21e | 3420 | } |
6e909404 | 3421 | else { |
90771dc0 | 3422 | I32 tmp; |
5db06880 NC |
3423 | if (!PL_madskills) /* when just compiling don't need correct */ |
3424 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
3425 | tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */ | |
3792a11b | 3426 | if ((*s == 'L' || *s == 'U') && |
6e909404 JH |
3427 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) { |
3428 | PL_lex_casestack[--PL_lex_casemods] = '\0'; | |
bbf60fe6 | 3429 | return REPORT(')'); |
6e909404 JH |
3430 | } |
3431 | if (PL_lex_casemods > 10) | |
3432 | Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
3433 | PL_lex_casestack[PL_lex_casemods++] = *s; | |
3434 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
3435 | PL_lex_state = LEX_INTERPCONCAT; | |
cd81e915 | 3436 | start_force(PL_curforce); |
9ded7720 | 3437 | NEXTVAL_NEXTTOKE.ival = 0; |
6e909404 | 3438 | force_next('('); |
cd81e915 | 3439 | start_force(PL_curforce); |
6e909404 | 3440 | if (*s == 'l') |
9ded7720 | 3441 | NEXTVAL_NEXTTOKE.ival = OP_LCFIRST; |
6e909404 | 3442 | else if (*s == 'u') |
9ded7720 | 3443 | NEXTVAL_NEXTTOKE.ival = OP_UCFIRST; |
6e909404 | 3444 | else if (*s == 'L') |
9ded7720 | 3445 | NEXTVAL_NEXTTOKE.ival = OP_LC; |
6e909404 | 3446 | else if (*s == 'U') |
9ded7720 | 3447 | NEXTVAL_NEXTTOKE.ival = OP_UC; |
6e909404 | 3448 | else if (*s == 'Q') |
9ded7720 | 3449 | NEXTVAL_NEXTTOKE.ival = OP_QUOTEMETA; |
6e909404 JH |
3450 | else |
3451 | Perl_croak(aTHX_ "panic: yylex"); | |
5db06880 | 3452 | if (PL_madskills) { |
a5849ce5 NC |
3453 | SV* const tmpsv = newSVpvs("\\ "); |
3454 | /* replace the space with the character we want to escape | |
3455 | */ | |
3456 | SvPVX(tmpsv)[1] = *s; | |
5db06880 NC |
3457 | curmad('_', tmpsv); |
3458 | } | |
6e909404 | 3459 | PL_bufptr = s + 1; |
a0d0e21e | 3460 | } |
79072805 | 3461 | force_next(FUNC); |
3280af22 NIS |
3462 | if (PL_lex_starts) { |
3463 | s = PL_bufptr; | |
3464 | PL_lex_starts = 0; | |
5db06880 NC |
3465 | #ifdef PERL_MAD |
3466 | if (PL_madskills) { | |
cd81e915 NC |
3467 | if (PL_thistoken) |
3468 | sv_free(PL_thistoken); | |
6b29d1f5 | 3469 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3470 | } |
3471 | #endif | |
131b3ad0 DM |
3472 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3473 | if (PL_lex_casemods == 1 && PL_lex_inpat) | |
3474 | OPERATOR(','); | |
3475 | else | |
3476 | Aop(OP_CONCAT); | |
79072805 LW |
3477 | } |
3478 | else | |
cea2e8a9 | 3479 | return yylex(); |
79072805 LW |
3480 | } |
3481 | ||
55497cff | 3482 | case LEX_INTERPPUSH: |
bbf60fe6 | 3483 | return REPORT(sublex_push()); |
55497cff | 3484 | |
79072805 | 3485 | case LEX_INTERPSTART: |
3280af22 | 3486 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3487 | return REPORT(sublex_done()); |
607df283 | 3488 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3489 | "### Interpolated variable\n"); }); |
3280af22 NIS |
3490 | PL_expect = XTERM; |
3491 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
3492 | PL_lex_state = LEX_INTERPNORMAL; | |
3493 | if (PL_lex_dojoin) { | |
cd81e915 | 3494 | start_force(PL_curforce); |
9ded7720 | 3495 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3496 | force_next(','); |
cd81e915 | 3497 | start_force(PL_curforce); |
a0d0e21e | 3498 | force_ident("\"", '$'); |
cd81e915 | 3499 | start_force(PL_curforce); |
9ded7720 | 3500 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3501 | force_next('$'); |
cd81e915 | 3502 | start_force(PL_curforce); |
9ded7720 | 3503 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3504 | force_next('('); |
cd81e915 | 3505 | start_force(PL_curforce); |
9ded7720 | 3506 | NEXTVAL_NEXTTOKE.ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
3507 | force_next(FUNC); |
3508 | } | |
3280af22 NIS |
3509 | if (PL_lex_starts++) { |
3510 | s = PL_bufptr; | |
5db06880 NC |
3511 | #ifdef PERL_MAD |
3512 | if (PL_madskills) { | |
cd81e915 NC |
3513 | if (PL_thistoken) |
3514 | sv_free(PL_thistoken); | |
6b29d1f5 | 3515 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3516 | } |
3517 | #endif | |
131b3ad0 DM |
3518 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3519 | if (!PL_lex_casemods && PL_lex_inpat) | |
3520 | OPERATOR(','); | |
3521 | else | |
3522 | Aop(OP_CONCAT); | |
79072805 | 3523 | } |
cea2e8a9 | 3524 | return yylex(); |
79072805 LW |
3525 | |
3526 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
3527 | if (intuit_more(PL_bufptr)) { |
3528 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
3529 | break; |
3530 | } | |
3531 | /* FALL THROUGH */ | |
3532 | ||
3533 | case LEX_INTERPEND: | |
3280af22 NIS |
3534 | if (PL_lex_dojoin) { |
3535 | PL_lex_dojoin = FALSE; | |
3536 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3537 | #ifdef PERL_MAD |
3538 | if (PL_madskills) { | |
cd81e915 NC |
3539 | if (PL_thistoken) |
3540 | sv_free(PL_thistoken); | |
6b29d1f5 | 3541 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3542 | } |
3543 | #endif | |
bbf60fe6 | 3544 | return REPORT(')'); |
79072805 | 3545 | } |
43a16006 | 3546 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 3547 | && SvEVALED(PL_lex_repl)) |
43a16006 | 3548 | { |
e9fa98b2 | 3549 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 3550 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
a0714e2c | 3551 | PL_lex_repl = NULL; |
e9fa98b2 | 3552 | } |
79072805 LW |
3553 | /* FALLTHROUGH */ |
3554 | case LEX_INTERPCONCAT: | |
3555 | #ifdef DEBUGGING | |
3280af22 | 3556 | if (PL_lex_brackets) |
cea2e8a9 | 3557 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 3558 | #endif |
3280af22 | 3559 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3560 | return REPORT(sublex_done()); |
79072805 | 3561 | |
3280af22 NIS |
3562 | if (SvIVX(PL_linestr) == '\'') { |
3563 | SV *sv = newSVsv(PL_linestr); | |
3564 | if (!PL_lex_inpat) | |
76e3520e | 3565 | sv = tokeq(sv); |
3280af22 | 3566 | else if ( PL_hints & HINT_NEW_RE ) |
eb0d8d16 | 3567 | sv = new_constant(NULL, 0, "qr", sv, sv, "q", 1); |
6154021b | 3568 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 3569 | s = PL_bufend; |
79072805 LW |
3570 | } |
3571 | else { | |
3280af22 | 3572 | s = scan_const(PL_bufptr); |
79072805 | 3573 | if (*s == '\\') |
3280af22 | 3574 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 3575 | else |
3280af22 | 3576 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
3577 | } |
3578 | ||
3280af22 | 3579 | if (s != PL_bufptr) { |
cd81e915 | 3580 | start_force(PL_curforce); |
5db06880 NC |
3581 | if (PL_madskills) { |
3582 | curmad('X', newSVpvn(PL_bufptr,s-PL_bufptr)); | |
3583 | } | |
6154021b | 3584 | NEXTVAL_NEXTTOKE = pl_yylval; |
3280af22 | 3585 | PL_expect = XTERM; |
79072805 | 3586 | force_next(THING); |
131b3ad0 | 3587 | if (PL_lex_starts++) { |
5db06880 NC |
3588 | #ifdef PERL_MAD |
3589 | if (PL_madskills) { | |
cd81e915 NC |
3590 | if (PL_thistoken) |
3591 | sv_free(PL_thistoken); | |
6b29d1f5 | 3592 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3593 | } |
3594 | #endif | |
131b3ad0 DM |
3595 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3596 | if (!PL_lex_casemods && PL_lex_inpat) | |
3597 | OPERATOR(','); | |
3598 | else | |
3599 | Aop(OP_CONCAT); | |
3600 | } | |
79072805 | 3601 | else { |
3280af22 | 3602 | PL_bufptr = s; |
cea2e8a9 | 3603 | return yylex(); |
79072805 LW |
3604 | } |
3605 | } | |
3606 | ||
cea2e8a9 | 3607 | return yylex(); |
a0d0e21e | 3608 | case LEX_FORMLINE: |
3280af22 NIS |
3609 | PL_lex_state = LEX_NORMAL; |
3610 | s = scan_formline(PL_bufptr); | |
3611 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
3612 | goto rightbracket; |
3613 | OPERATOR(';'); | |
79072805 LW |
3614 | } |
3615 | ||
3280af22 NIS |
3616 | s = PL_bufptr; |
3617 | PL_oldoldbufptr = PL_oldbufptr; | |
3618 | PL_oldbufptr = s; | |
463ee0b2 LW |
3619 | |
3620 | retry: | |
5db06880 | 3621 | #ifdef PERL_MAD |
cd81e915 NC |
3622 | if (PL_thistoken) { |
3623 | sv_free(PL_thistoken); | |
3624 | PL_thistoken = 0; | |
5db06880 | 3625 | } |
cd81e915 | 3626 | PL_realtokenstart = s - SvPVX(PL_linestr); /* assume but undo on ws */ |
5db06880 | 3627 | #endif |
378cc40b LW |
3628 | switch (*s) { |
3629 | default: | |
7e2040f0 | 3630 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 3631 | goto keylookup; |
987a03fc | 3632 | len = UTF ? Perl_utf8_length(aTHX_ (U8 *) PL_linestart, (U8 *) s) : (STRLEN) (s - PL_linestart); |
356c7adf | 3633 | Perl_croak(aTHX_ "Unrecognized character \\x%02X in column %d", *s & 255, (int) len + 1); |
e929a76b LW |
3634 | case 4: |
3635 | case 26: | |
3636 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 3637 | case 0: |
5db06880 NC |
3638 | #ifdef PERL_MAD |
3639 | if (PL_madskills) | |
cd81e915 | 3640 | PL_faketokens = 0; |
5db06880 | 3641 | #endif |
3280af22 NIS |
3642 | if (!PL_rsfp) { |
3643 | PL_last_uni = 0; | |
3644 | PL_last_lop = 0; | |
c5ee2135 | 3645 | if (PL_lex_brackets) { |
10edeb5d JH |
3646 | yyerror((const char *) |
3647 | (PL_lex_formbrack | |
3648 | ? "Format not terminated" | |
3649 | : "Missing right curly or square bracket")); | |
c5ee2135 | 3650 | } |
4e553d73 | 3651 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 3652 | "### Tokener got EOF\n"); |
5f80b19c | 3653 | } ); |
79072805 | 3654 | TOKEN(0); |
463ee0b2 | 3655 | } |
3280af22 | 3656 | if (s++ < PL_bufend) |
a687059c | 3657 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
3658 | PL_last_uni = 0; |
3659 | PL_last_lop = 0; | |
3660 | if (!PL_in_eval && !PL_preambled) { | |
3661 | PL_preambled = TRUE; | |
5db06880 NC |
3662 | #ifdef PERL_MAD |
3663 | if (PL_madskills) | |
cd81e915 | 3664 | PL_faketokens = 1; |
5db06880 | 3665 | #endif |
5ab7ff98 NC |
3666 | if (PL_perldb) { |
3667 | /* Generate a string of Perl code to load the debugger. | |
3668 | * If PERL5DB is set, it will return the contents of that, | |
3669 | * otherwise a compile-time require of perl5db.pl. */ | |
3670 | ||
3671 | const char * const pdb = PerlEnv_getenv("PERL5DB"); | |
3672 | ||
3673 | if (pdb) { | |
3674 | sv_setpv(PL_linestr, pdb); | |
3675 | sv_catpvs(PL_linestr,";"); | |
3676 | } else { | |
3677 | SETERRNO(0,SS_NORMAL); | |
3678 | sv_setpvs(PL_linestr, "BEGIN { require 'perl5db.pl' };"); | |
3679 | } | |
3680 | } else | |
3681 | sv_setpvs(PL_linestr,""); | |
c62eb204 NC |
3682 | if (PL_preambleav) { |
3683 | SV **svp = AvARRAY(PL_preambleav); | |
3684 | SV **const end = svp + AvFILLp(PL_preambleav); | |
3685 | while(svp <= end) { | |
3686 | sv_catsv(PL_linestr, *svp); | |
3687 | ++svp; | |
396482e1 | 3688 | sv_catpvs(PL_linestr, ";"); |
91b7def8 | 3689 | } |
daba3364 | 3690 | sv_free(MUTABLE_SV(PL_preambleav)); |
3280af22 | 3691 | PL_preambleav = NULL; |
91b7def8 | 3692 | } |
9f639728 FR |
3693 | if (PL_minus_E) |
3694 | sv_catpvs(PL_linestr, | |
3695 | "use feature ':5." STRINGIFY(PERL_VERSION) "';"); | |
3280af22 | 3696 | if (PL_minus_n || PL_minus_p) { |
396482e1 | 3697 | sv_catpvs(PL_linestr, "LINE: while (<>) {"); |
3280af22 | 3698 | if (PL_minus_l) |
396482e1 | 3699 | sv_catpvs(PL_linestr,"chomp;"); |
3280af22 | 3700 | if (PL_minus_a) { |
3280af22 | 3701 | if (PL_minus_F) { |
3792a11b NC |
3702 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
3703 | || *PL_splitstr == '"') | |
3280af22 | 3704 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 3705 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 3706 | else { |
c8ef6a4b NC |
3707 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
3708 | bytes can be used as quoting characters. :-) */ | |
dd374669 | 3709 | const char *splits = PL_splitstr; |
91d456ae | 3710 | sv_catpvs(PL_linestr, "our @F=split(q\0"); |
48c4c863 NC |
3711 | do { |
3712 | /* Need to \ \s */ | |
dd374669 AL |
3713 | if (*splits == '\\') |
3714 | sv_catpvn(PL_linestr, splits, 1); | |
3715 | sv_catpvn(PL_linestr, splits, 1); | |
3716 | } while (*splits++); | |
48c4c863 NC |
3717 | /* This loop will embed the trailing NUL of |
3718 | PL_linestr as the last thing it does before | |
3719 | terminating. */ | |
396482e1 | 3720 | sv_catpvs(PL_linestr, ");"); |
54310121 | 3721 | } |
2304df62 AD |
3722 | } |
3723 | else | |
396482e1 | 3724 | sv_catpvs(PL_linestr,"our @F=split(' ');"); |
2304df62 | 3725 | } |
79072805 | 3726 | } |
396482e1 | 3727 | sv_catpvs(PL_linestr, "\n"); |
3280af22 NIS |
3728 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3729 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3730 | PL_last_lop = PL_last_uni = NULL; |
65269a95 | 3731 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
5fa550fb | 3732 | update_debugger_info(PL_linestr, NULL, 0); |
79072805 | 3733 | goto retry; |
a687059c | 3734 | } |
e929a76b | 3735 | do { |
aa7440fb | 3736 | bof = PL_rsfp ? TRUE : FALSE; |
bd61b366 | 3737 | if ((s = filter_gets(PL_linestr, PL_rsfp, 0)) == NULL) { |
7e28d3af | 3738 | fake_eof: |
5db06880 | 3739 | #ifdef PERL_MAD |
cd81e915 | 3740 | PL_realtokenstart = -1; |
5db06880 | 3741 | #endif |
7e28d3af | 3742 | if (PL_rsfp) { |
4c84d7f2 | 3743 | if ((PerlIO *)PL_rsfp == PerlIO_stdin()) |
7e28d3af JH |
3744 | PerlIO_clearerr(PL_rsfp); |
3745 | else | |
3746 | (void)PerlIO_close(PL_rsfp); | |
4608196e | 3747 | PL_rsfp = NULL; |
7e28d3af JH |
3748 | PL_doextract = FALSE; |
3749 | } | |
3750 | if (!PL_in_eval && (PL_minus_n || PL_minus_p)) { | |
5db06880 NC |
3751 | #ifdef PERL_MAD |
3752 | if (PL_madskills) | |
cd81e915 | 3753 | PL_faketokens = 1; |
5db06880 | 3754 | #endif |
49a54bbe NC |
3755 | if (PL_minus_p) |
3756 | sv_setpvs(PL_linestr, ";}continue{print;}"); | |
3757 | else | |
3758 | sv_setpvs(PL_linestr, ";}"); | |
7e28d3af JH |
3759 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3760 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3761 | PL_last_lop = PL_last_uni = NULL; |
7e28d3af JH |
3762 | PL_minus_n = PL_minus_p = 0; |
3763 | goto retry; | |
3764 | } | |
3765 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
bd61b366 | 3766 | PL_last_lop = PL_last_uni = NULL; |
76f68e9b | 3767 | sv_setpvs(PL_linestr,""); |
7e28d3af JH |
3768 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ |
3769 | } | |
7aa207d6 JH |
3770 | /* If it looks like the start of a BOM or raw UTF-16, |
3771 | * check if it in fact is. */ | |
3772 | else if (bof && | |
3773 | (*s == 0 || | |
3774 | *(U8*)s == 0xEF || | |
3775 | *(U8*)s >= 0xFE || | |
3776 | s[1] == 0)) { | |
226017aa | 3777 | #ifdef PERLIO_IS_STDIO |
e3f494f1 JH |
3778 | # ifdef __GNU_LIBRARY__ |
3779 | # if __GNU_LIBRARY__ == 1 /* Linux glibc5 */ | |
226017aa DD |
3780 | # define FTELL_FOR_PIPE_IS_BROKEN |
3781 | # endif | |
e3f494f1 JH |
3782 | # else |
3783 | # ifdef __GLIBC__ | |
3784 | # if __GLIBC__ == 1 /* maybe some glibc5 release had it like this? */ | |
3785 | # define FTELL_FOR_PIPE_IS_BROKEN | |
3786 | # endif | |
3787 | # endif | |
226017aa DD |
3788 | # endif |
3789 | #endif | |
eb160463 | 3790 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
7e28d3af | 3791 | if (bof) { |
3280af22 | 3792 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 3793 | s = swallow_bom((U8*)s); |
e929a76b | 3794 | } |
378cc40b | 3795 | } |
3280af22 | 3796 | if (PL_doextract) { |
a0d0e21e | 3797 | /* Incest with pod. */ |
5db06880 NC |
3798 | #ifdef PERL_MAD |
3799 | if (PL_madskills) | |
cd81e915 | 3800 | sv_catsv(PL_thiswhite, PL_linestr); |
5db06880 | 3801 | #endif |
01a57ef7 | 3802 | if (*s == '=' && strnEQ(s, "=cut", 4) && !isALPHA(s[4])) { |
76f68e9b | 3803 | sv_setpvs(PL_linestr, ""); |
3280af22 NIS |
3804 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3805 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3806 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3807 | PL_doextract = FALSE; |
a0d0e21e | 3808 | } |
4e553d73 | 3809 | } |
463ee0b2 | 3810 | incline(s); |
3280af22 NIS |
3811 | } while (PL_doextract); |
3812 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
65269a95 | 3813 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
5fa550fb | 3814 | update_debugger_info(PL_linestr, NULL, 0); |
3280af22 | 3815 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 3816 | PL_last_lop = PL_last_uni = NULL; |
57843af0 | 3817 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 3818 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 3819 | s++; |
a0d0e21e | 3820 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 3821 | s++; |
5db06880 NC |
3822 | #ifdef PERL_MAD |
3823 | if (PL_madskills) | |
cd81e915 | 3824 | PL_thiswhite = newSVpvn(PL_linestart, s - PL_linestart); |
5db06880 | 3825 | #endif |
bd61b366 | 3826 | d = NULL; |
3280af22 | 3827 | if (!PL_in_eval) { |
44a8e56a | 3828 | if (*s == '#' && *(s+1) == '!') |
3829 | d = s + 2; | |
3830 | #ifdef ALTERNATE_SHEBANG | |
3831 | else { | |
bfed75c6 | 3832 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 3833 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
3834 | d = s + (sizeof(as) - 1); | |
3835 | } | |
3836 | #endif /* ALTERNATE_SHEBANG */ | |
3837 | } | |
3838 | if (d) { | |
b8378b72 | 3839 | char *ipath; |
774d564b | 3840 | char *ipathend; |
b8378b72 | 3841 | |
774d564b | 3842 | while (isSPACE(*d)) |
b8378b72 CS |
3843 | d++; |
3844 | ipath = d; | |
774d564b | 3845 | while (*d && !isSPACE(*d)) |
3846 | d++; | |
3847 | ipathend = d; | |
3848 | ||
3849 | #ifdef ARG_ZERO_IS_SCRIPT | |
3850 | if (ipathend > ipath) { | |
3851 | /* | |
3852 | * HP-UX (at least) sets argv[0] to the script name, | |
3853 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
3854 | * at least, set argv[0] to the basename of the Perl | |
3855 | * interpreter. So, having found "#!", we'll set it right. | |
3856 | */ | |
fafc274c NC |
3857 | SV * const x = GvSV(gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, |
3858 | SVt_PV)); /* $^X */ | |
774d564b | 3859 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 3860 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 3861 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 3862 | SvSETMAGIC(x); |
3863 | } | |
556c1dec JH |
3864 | else { |
3865 | STRLEN blen; | |
3866 | STRLEN llen; | |
cfd0369c | 3867 | const char *bstart = SvPV_const(CopFILESV(PL_curcop),blen); |
9d4ba2ae | 3868 | const char * const lstart = SvPV_const(x,llen); |
556c1dec JH |
3869 | if (llen < blen) { |
3870 | bstart += blen - llen; | |
3871 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
3872 | sv_setpvn(x, ipath, ipathend - ipath); | |
3873 | SvSETMAGIC(x); | |
3874 | } | |
3875 | } | |
3876 | } | |
774d564b | 3877 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 3878 | } |
774d564b | 3879 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
3880 | |
3881 | /* | |
3882 | * Look for options. | |
3883 | */ | |
748a9306 | 3884 | d = instr(s,"perl -"); |
84e30d1a | 3885 | if (!d) { |
748a9306 | 3886 | d = instr(s,"perl"); |
84e30d1a GS |
3887 | #if defined(DOSISH) |
3888 | /* avoid getting into infinite loops when shebang | |
3889 | * line contains "Perl" rather than "perl" */ | |
3890 | if (!d) { | |
3891 | for (d = ipathend-4; d >= ipath; --d) { | |
3892 | if ((*d == 'p' || *d == 'P') | |
3893 | && !ibcmp(d, "perl", 4)) | |
3894 | { | |
3895 | break; | |
3896 | } | |
3897 | } | |
3898 | if (d < ipath) | |
bd61b366 | 3899 | d = NULL; |
84e30d1a GS |
3900 | } |
3901 | #endif | |
3902 | } | |
44a8e56a | 3903 | #ifdef ALTERNATE_SHEBANG |
3904 | /* | |
3905 | * If the ALTERNATE_SHEBANG on this system starts with a | |
3906 | * character that can be part of a Perl expression, then if | |
3907 | * we see it but not "perl", we're probably looking at the | |
3908 | * start of Perl code, not a request to hand off to some | |
3909 | * other interpreter. Similarly, if "perl" is there, but | |
3910 | * not in the first 'word' of the line, we assume the line | |
3911 | * contains the start of the Perl program. | |
44a8e56a | 3912 | */ |
3913 | if (d && *s != '#') { | |
f54cb97a | 3914 | const char *c = ipath; |
44a8e56a | 3915 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
3916 | c++; | |
3917 | if (c < d) | |
bd61b366 | 3918 | d = NULL; /* "perl" not in first word; ignore */ |
44a8e56a | 3919 | else |
3920 | *s = '#'; /* Don't try to parse shebang line */ | |
3921 | } | |
774d564b | 3922 | #endif /* ALTERNATE_SHEBANG */ |
bf4acbe4 | 3923 | #ifndef MACOS_TRADITIONAL |
748a9306 | 3924 | if (!d && |
44a8e56a | 3925 | *s == '#' && |
774d564b | 3926 | ipathend > ipath && |
3280af22 | 3927 | !PL_minus_c && |
748a9306 | 3928 | !instr(s,"indir") && |
3280af22 | 3929 | instr(PL_origargv[0],"perl")) |
748a9306 | 3930 | { |
27da23d5 | 3931 | dVAR; |
9f68db38 | 3932 | char **newargv; |
9f68db38 | 3933 | |
774d564b | 3934 | *ipathend = '\0'; |
3935 | s = ipathend + 1; | |
3280af22 | 3936 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 3937 | s++; |
3280af22 | 3938 | if (s < PL_bufend) { |
a02a5408 | 3939 | Newxz(newargv,PL_origargc+3,char*); |
9f68db38 | 3940 | newargv[1] = s; |
3280af22 | 3941 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
3942 | s++; |
3943 | *s = '\0'; | |
3280af22 | 3944 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
3945 | } |
3946 | else | |
3280af22 | 3947 | newargv = PL_origargv; |
774d564b | 3948 | newargv[0] = ipath; |
b35112e7 | 3949 | PERL_FPU_PRE_EXEC |
b4748376 | 3950 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
b35112e7 | 3951 | PERL_FPU_POST_EXEC |
cea2e8a9 | 3952 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 3953 | } |
bf4acbe4 | 3954 | #endif |
748a9306 | 3955 | if (d) { |
c35e046a AL |
3956 | while (*d && !isSPACE(*d)) |
3957 | d++; | |
3958 | while (SPACE_OR_TAB(*d)) | |
3959 | d++; | |
748a9306 LW |
3960 | |
3961 | if (*d++ == '-') { | |
f54cb97a | 3962 | const bool switches_done = PL_doswitches; |
fb993905 GA |
3963 | const U32 oldpdb = PL_perldb; |
3964 | const bool oldn = PL_minus_n; | |
3965 | const bool oldp = PL_minus_p; | |
c7030b81 | 3966 | const char *d1 = d; |
fb993905 | 3967 | |
8cc95fdb | 3968 | do { |
c7030b81 NC |
3969 | if (*d1 == 'M' || *d1 == 'm' || *d1 == 'C') { |
3970 | const char * const m = d1; | |
3971 | while (*d1 && !isSPACE(*d1)) | |
3972 | d1++; | |
cea2e8a9 | 3973 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
c7030b81 | 3974 | (int)(d1 - m), m); |
8cc95fdb | 3975 | } |
c7030b81 NC |
3976 | d1 = moreswitches(d1); |
3977 | } while (d1); | |
f0b2cf55 YST |
3978 | if (PL_doswitches && !switches_done) { |
3979 | int argc = PL_origargc; | |
3980 | char **argv = PL_origargv; | |
3981 | do { | |
3982 | argc--,argv++; | |
3983 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
3984 | init_argv_symbols(argc,argv); | |
3985 | } | |
65269a95 | 3986 | if (((PERLDB_LINE || PERLDB_SAVESRC) && !oldpdb) || |
155aba94 | 3987 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) |
b084f20b | 3988 | /* if we have already added "LINE: while (<>) {", |
3989 | we must not do it again */ | |
748a9306 | 3990 | { |
76f68e9b | 3991 | sv_setpvs(PL_linestr, ""); |
3280af22 NIS |
3992 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3993 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3994 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3995 | PL_preambled = FALSE; |
65269a95 | 3996 | if (PERLDB_LINE || PERLDB_SAVESRC) |
3280af22 | 3997 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
3998 | goto retry; |
3999 | } | |
a0d0e21e | 4000 | } |
79072805 | 4001 | } |
9f68db38 | 4002 | } |
79072805 | 4003 | } |
3280af22 NIS |
4004 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
4005 | PL_bufptr = s; | |
4006 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 4007 | return yylex(); |
ae986130 | 4008 | } |
378cc40b | 4009 | goto retry; |
4fdae800 | 4010 | case '\r': |
6a27c188 | 4011 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 4012 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 4013 | Perl_croak(aTHX_ |
cc507455 | 4014 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 4015 | #endif |
4fdae800 | 4016 | case ' ': case '\t': case '\f': case 013: |
bf4acbe4 GS |
4017 | #ifdef MACOS_TRADITIONAL |
4018 | case '\312': | |
4019 | #endif | |
5db06880 | 4020 | #ifdef PERL_MAD |
cd81e915 | 4021 | PL_realtokenstart = -1; |
ac372eb8 RD |
4022 | if (!PL_thiswhite) |
4023 | PL_thiswhite = newSVpvs(""); | |
4024 | sv_catpvn(PL_thiswhite, s, 1); | |
5db06880 | 4025 | #endif |
ac372eb8 | 4026 | s++; |
378cc40b | 4027 | goto retry; |
378cc40b | 4028 | case '#': |
e929a76b | 4029 | case '\n': |
5db06880 | 4030 | #ifdef PERL_MAD |
cd81e915 | 4031 | PL_realtokenstart = -1; |
5db06880 | 4032 | if (PL_madskills) |
cd81e915 | 4033 | PL_faketokens = 0; |
5db06880 | 4034 | #endif |
3280af22 | 4035 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
4036 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
4037 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
4038 | CopLINE_dec(PL_curcop); | |
4039 | incline(s); | |
4040 | } | |
5db06880 NC |
4041 | if (PL_madskills && !PL_lex_formbrack && !PL_in_eval) { |
4042 | s = SKIPSPACE0(s); | |
4043 | if (!PL_in_eval || PL_rsfp) | |
4044 | incline(s); | |
4045 | } | |
4046 | else { | |
4047 | d = s; | |
4048 | while (d < PL_bufend && *d != '\n') | |
4049 | d++; | |
4050 | if (d < PL_bufend) | |
4051 | d++; | |
4052 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
4053 | Perl_croak(aTHX_ "panic: input overflow"); | |
4054 | #ifdef PERL_MAD | |
4055 | if (PL_madskills) | |
cd81e915 | 4056 | PL_thiswhite = newSVpvn(s, d - s); |
5db06880 NC |
4057 | #endif |
4058 | s = d; | |
4059 | incline(s); | |
4060 | } | |
3280af22 NIS |
4061 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
4062 | PL_bufptr = s; | |
4063 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 4064 | return yylex(); |
a687059c | 4065 | } |
378cc40b | 4066 | } |
a687059c | 4067 | else { |
5db06880 NC |
4068 | #ifdef PERL_MAD |
4069 | if (PL_madskills && CopLINE(PL_curcop) >= 1 && !PL_lex_formbrack) { | |
4070 | if (CopLINE(PL_curcop) == 1 && s[0] == '#' && s[1] == '!') { | |
cd81e915 | 4071 | PL_faketokens = 0; |
5db06880 NC |
4072 | s = SKIPSPACE0(s); |
4073 | TOKEN(PEG); /* make sure any #! line is accessible */ | |
4074 | } | |
4075 | s = SKIPSPACE0(s); | |
4076 | } | |
4077 | else { | |
4078 | /* if (PL_madskills && PL_lex_formbrack) { */ | |
4079 | d = s; | |
4080 | while (d < PL_bufend && *d != '\n') | |
4081 | d++; | |
4082 | if (d < PL_bufend) | |
4083 | d++; | |
4084 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
4085 | Perl_croak(aTHX_ "panic: input overflow"); | |
4086 | if (PL_madskills && CopLINE(PL_curcop) >= 1) { | |
cd81e915 | 4087 | if (!PL_thiswhite) |
6b29d1f5 | 4088 | PL_thiswhite = newSVpvs(""); |
5db06880 | 4089 | if (CopLINE(PL_curcop) == 1) { |
76f68e9b | 4090 | sv_setpvs(PL_thiswhite, ""); |
cd81e915 | 4091 | PL_faketokens = 0; |
5db06880 | 4092 | } |
cd81e915 | 4093 | sv_catpvn(PL_thiswhite, s, d - s); |
5db06880 NC |
4094 | } |
4095 | s = d; | |
4096 | /* } | |
4097 | *s = '\0'; | |
4098 | PL_bufend = s; */ | |
4099 | } | |
4100 | #else | |
378cc40b | 4101 | *s = '\0'; |
3280af22 | 4102 | PL_bufend = s; |
5db06880 | 4103 | #endif |
a687059c | 4104 | } |
378cc40b LW |
4105 | goto retry; |
4106 | case '-': | |
79072805 | 4107 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 | 4108 | I32 ftst = 0; |
90771dc0 | 4109 | char tmp; |
e5edeb50 | 4110 | |
378cc40b | 4111 | s++; |
3280af22 | 4112 | PL_bufptr = s; |
748a9306 LW |
4113 | tmp = *s++; |
4114 | ||
bf4acbe4 | 4115 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
4116 | s++; |
4117 | ||
4118 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 4119 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
931e0695 | 4120 | DEBUG_T( { printbuf("### Saw unary minus before =>, forcing word %s\n", s); } ); |
748a9306 LW |
4121 | OPERATOR('-'); /* unary minus */ |
4122 | } | |
3280af22 | 4123 | PL_last_uni = PL_oldbufptr; |
748a9306 | 4124 | switch (tmp) { |
e5edeb50 JH |
4125 | case 'r': ftst = OP_FTEREAD; break; |
4126 | case 'w': ftst = OP_FTEWRITE; break; | |
4127 | case 'x': ftst = OP_FTEEXEC; break; | |
4128 | case 'o': ftst = OP_FTEOWNED; break; | |
4129 | case 'R': ftst = OP_FTRREAD; break; | |
4130 | case 'W': ftst = OP_FTRWRITE; break; | |
4131 | case 'X': ftst = OP_FTREXEC; break; | |
4132 | case 'O': ftst = OP_FTROWNED; break; | |
4133 | case 'e': ftst = OP_FTIS; break; | |
4134 | case 'z': ftst = OP_FTZERO; break; | |
4135 | case 's': ftst = OP_FTSIZE; break; | |
4136 | case 'f': ftst = OP_FTFILE; break; | |
4137 | case 'd': ftst = OP_FTDIR; break; | |
4138 | case 'l': ftst = OP_FTLINK; break; | |
4139 | case 'p': ftst = OP_FTPIPE; break; | |
4140 | case 'S': ftst = OP_FTSOCK; break; | |
4141 | case 'u': ftst = OP_FTSUID; break; | |
4142 | case 'g': ftst = OP_FTSGID; break; | |
4143 | case 'k': ftst = OP_FTSVTX; break; | |
4144 | case 'b': ftst = OP_FTBLK; break; | |
4145 | case 'c': ftst = OP_FTCHR; break; | |
4146 | case 't': ftst = OP_FTTTY; break; | |
4147 | case 'T': ftst = OP_FTTEXT; break; | |
4148 | case 'B': ftst = OP_FTBINARY; break; | |
4149 | case 'M': case 'A': case 'C': | |
fafc274c | 4150 | gv_fetchpvs("\024", GV_ADD|GV_NOTQUAL, SVt_PV); |
e5edeb50 JH |
4151 | switch (tmp) { |
4152 | case 'M': ftst = OP_FTMTIME; break; | |
4153 | case 'A': ftst = OP_FTATIME; break; | |
4154 | case 'C': ftst = OP_FTCTIME; break; | |
4155 | default: break; | |
4156 | } | |
4157 | break; | |
378cc40b | 4158 | default: |
378cc40b LW |
4159 | break; |
4160 | } | |
e5edeb50 | 4161 | if (ftst) { |
eb160463 | 4162 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 4163 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a18d764d | 4164 | "### Saw file test %c\n", (int)tmp); |
5f80b19c | 4165 | } ); |
e5edeb50 JH |
4166 | FTST(ftst); |
4167 | } | |
4168 | else { | |
4169 | /* Assume it was a minus followed by a one-letter named | |
4170 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 4171 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
17ad61e0 | 4172 | "### '-%c' looked like a file test but was not\n", |
4fccd7c6 | 4173 | (int) tmp); |
5f80b19c | 4174 | } ); |
3cf7b4c4 | 4175 | s = --PL_bufptr; |
e5edeb50 | 4176 | } |
378cc40b | 4177 | } |
90771dc0 NC |
4178 | { |
4179 | const char tmp = *s++; | |
4180 | if (*s == tmp) { | |
4181 | s++; | |
4182 | if (PL_expect == XOPERATOR) | |
4183 | TERM(POSTDEC); | |
4184 | else | |
4185 | OPERATOR(PREDEC); | |
4186 | } | |
4187 | else if (*s == '>') { | |
4188 | s++; | |
29595ff2 | 4189 | s = SKIPSPACE1(s); |
90771dc0 NC |
4190 | if (isIDFIRST_lazy_if(s,UTF)) { |
4191 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); | |
4192 | TOKEN(ARROW); | |
4193 | } | |
4194 | else if (*s == '$') | |
4195 | OPERATOR(ARROW); | |
4196 | else | |
4197 | TERM(ARROW); | |
4198 | } | |
3280af22 | 4199 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4200 | Aop(OP_SUBTRACT); |
4201 | else { | |
4202 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4203 | check_uni(); | |
4204 | OPERATOR('-'); /* unary minus */ | |
79072805 | 4205 | } |
2f3197b3 | 4206 | } |
79072805 | 4207 | |
378cc40b | 4208 | case '+': |
90771dc0 NC |
4209 | { |
4210 | const char tmp = *s++; | |
4211 | if (*s == tmp) { | |
4212 | s++; | |
4213 | if (PL_expect == XOPERATOR) | |
4214 | TERM(POSTINC); | |
4215 | else | |
4216 | OPERATOR(PREINC); | |
4217 | } | |
3280af22 | 4218 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4219 | Aop(OP_ADD); |
4220 | else { | |
4221 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4222 | check_uni(); | |
4223 | OPERATOR('+'); | |
4224 | } | |
2f3197b3 | 4225 | } |
a687059c | 4226 | |
378cc40b | 4227 | case '*': |
3280af22 NIS |
4228 | if (PL_expect != XOPERATOR) { |
4229 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
4230 | PL_expect = XOPERATOR; | |
4231 | force_ident(PL_tokenbuf, '*'); | |
4232 | if (!*PL_tokenbuf) | |
a0d0e21e | 4233 | PREREF('*'); |
79072805 | 4234 | TERM('*'); |
a687059c | 4235 | } |
79072805 LW |
4236 | s++; |
4237 | if (*s == '*') { | |
a687059c | 4238 | s++; |
79072805 | 4239 | PWop(OP_POW); |
a687059c | 4240 | } |
79072805 LW |
4241 | Mop(OP_MULTIPLY); |
4242 | ||
378cc40b | 4243 | case '%': |
3280af22 | 4244 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 4245 | ++s; |
4246 | Mop(OP_MODULO); | |
a687059c | 4247 | } |
3280af22 | 4248 | PL_tokenbuf[0] = '%'; |
e8ae98db RGS |
4249 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
4250 | sizeof PL_tokenbuf - 1, FALSE); | |
3280af22 | 4251 | if (!PL_tokenbuf[1]) { |
bbce6d69 | 4252 | PREREF('%'); |
a687059c | 4253 | } |
3280af22 | 4254 | PL_pending_ident = '%'; |
bbce6d69 | 4255 | TERM('%'); |
a687059c | 4256 | |
378cc40b | 4257 | case '^': |
79072805 | 4258 | s++; |
a0d0e21e | 4259 | BOop(OP_BIT_XOR); |
79072805 | 4260 | case '[': |
3280af22 | 4261 | PL_lex_brackets++; |
79072805 | 4262 | /* FALL THROUGH */ |
378cc40b | 4263 | case '~': |
0d863452 | 4264 | if (s[1] == '~' |
3e7dd34d | 4265 | && (PL_expect == XOPERATOR || PL_expect == XTERMORDORDOR)) |
0d863452 RH |
4266 | { |
4267 | s += 2; | |
4268 | Eop(OP_SMARTMATCH); | |
4269 | } | |
378cc40b | 4270 | case ',': |
90771dc0 NC |
4271 | { |
4272 | const char tmp = *s++; | |
4273 | OPERATOR(tmp); | |
4274 | } | |
a0d0e21e LW |
4275 | case ':': |
4276 | if (s[1] == ':') { | |
4277 | len = 0; | |
0bfa2a8a | 4278 | goto just_a_word_zero_gv; |
a0d0e21e LW |
4279 | } |
4280 | s++; | |
09bef843 SB |
4281 | switch (PL_expect) { |
4282 | OP *attrs; | |
5db06880 NC |
4283 | #ifdef PERL_MAD |
4284 | I32 stuffstart; | |
4285 | #endif | |
09bef843 SB |
4286 | case XOPERATOR: |
4287 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
4288 | break; | |
4289 | PL_bufptr = s; /* update in case we back off */ | |
4290 | goto grabattrs; | |
4291 | case XATTRBLOCK: | |
4292 | PL_expect = XBLOCK; | |
4293 | goto grabattrs; | |
4294 | case XATTRTERM: | |
4295 | PL_expect = XTERMBLOCK; | |
4296 | grabattrs: | |
5db06880 NC |
4297 | #ifdef PERL_MAD |
4298 | stuffstart = s - SvPVX(PL_linestr) - 1; | |
4299 | #endif | |
29595ff2 | 4300 | s = PEEKSPACE(s); |
5f66b61c | 4301 | attrs = NULL; |
7e2040f0 | 4302 | while (isIDFIRST_lazy_if(s,UTF)) { |
90771dc0 | 4303 | I32 tmp; |
5cc237b8 | 4304 | SV *sv; |
09bef843 | 4305 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 4306 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len, 0))) { |
f9829d6b GS |
4307 | if (tmp < 0) tmp = -tmp; |
4308 | switch (tmp) { | |
4309 | case KEY_or: | |
4310 | case KEY_and: | |
4311 | case KEY_for: | |
4312 | case KEY_unless: | |
4313 | case KEY_if: | |
4314 | case KEY_while: | |
4315 | case KEY_until: | |
4316 | goto got_attrs; | |
4317 | default: | |
4318 | break; | |
4319 | } | |
4320 | } | |
5cc237b8 | 4321 | sv = newSVpvn(s, len); |
09bef843 SB |
4322 | if (*d == '(') { |
4323 | d = scan_str(d,TRUE,TRUE); | |
4324 | if (!d) { | |
09bef843 SB |
4325 | /* MUST advance bufptr here to avoid bogus |
4326 | "at end of line" context messages from yyerror(). | |
4327 | */ | |
4328 | PL_bufptr = s + len; | |
4329 | yyerror("Unterminated attribute parameter in attribute list"); | |
4330 | if (attrs) | |
4331 | op_free(attrs); | |
5cc237b8 | 4332 | sv_free(sv); |
bbf60fe6 | 4333 | return REPORT(0); /* EOF indicator */ |
09bef843 SB |
4334 | } |
4335 | } | |
4336 | if (PL_lex_stuff) { | |
09bef843 SB |
4337 | sv_catsv(sv, PL_lex_stuff); |
4338 | attrs = append_elem(OP_LIST, attrs, | |
4339 | newSVOP(OP_CONST, 0, sv)); | |
4340 | SvREFCNT_dec(PL_lex_stuff); | |
a0714e2c | 4341 | PL_lex_stuff = NULL; |
09bef843 SB |
4342 | } |
4343 | else { | |
5cc237b8 BS |
4344 | if (len == 6 && strnEQ(SvPVX(sv), "unique", len)) { |
4345 | sv_free(sv); | |
1108974d | 4346 | if (PL_in_my == KEY_our) { |
371fce9b | 4347 | #ifdef USE_ITHREADS |
6154021b | 4348 | GvUNIQUE_on(cGVOPx_gv(pl_yylval.opval)); |
371fce9b | 4349 | #else |
1108974d | 4350 | /* skip to avoid loading attributes.pm */ |
371fce9b | 4351 | #endif |
df9a6019 | 4352 | deprecate(":unique"); |
1108974d | 4353 | } |
bfed75c6 | 4354 | else |
371fce9b DM |
4355 | Perl_croak(aTHX_ "The 'unique' attribute may only be applied to 'our' variables"); |
4356 | } | |
4357 | ||
d3cea301 SB |
4358 | /* NOTE: any CV attrs applied here need to be part of |
4359 | the CVf_BUILTIN_ATTRS define in cv.h! */ | |
5cc237b8 BS |
4360 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "lvalue", len)) { |
4361 | sv_free(sv); | |
78f9721b | 4362 | CvLVALUE_on(PL_compcv); |
5cc237b8 BS |
4363 | } |
4364 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "locked", len)) { | |
4365 | sv_free(sv); | |
78f9721b | 4366 | CvLOCKED_on(PL_compcv); |
5cc237b8 BS |
4367 | } |
4368 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "method", len)) { | |
4369 | sv_free(sv); | |
78f9721b | 4370 | CvMETHOD_on(PL_compcv); |
5cc237b8 | 4371 | } |
78f9721b SM |
4372 | /* After we've set the flags, it could be argued that |
4373 | we don't need to do the attributes.pm-based setting | |
4374 | process, and shouldn't bother appending recognized | |
d3cea301 SB |
4375 | flags. To experiment with that, uncomment the |
4376 | following "else". (Note that's already been | |
4377 | uncommented. That keeps the above-applied built-in | |
4378 | attributes from being intercepted (and possibly | |
4379 | rejected) by a package's attribute routines, but is | |
4380 | justified by the performance win for the common case | |
4381 | of applying only built-in attributes.) */ | |
0256094b | 4382 | else |
78f9721b SM |
4383 | attrs = append_elem(OP_LIST, attrs, |
4384 | newSVOP(OP_CONST, 0, | |
5cc237b8 | 4385 | sv)); |
09bef843 | 4386 | } |
29595ff2 | 4387 | s = PEEKSPACE(d); |
0120eecf | 4388 | if (*s == ':' && s[1] != ':') |
29595ff2 | 4389 | s = PEEKSPACE(s+1); |
0120eecf GS |
4390 | else if (s == d) |
4391 | break; /* require real whitespace or :'s */ | |
29595ff2 | 4392 | /* XXX losing whitespace on sequential attributes here */ |
09bef843 | 4393 | } |
90771dc0 NC |
4394 | { |
4395 | const char tmp | |
4396 | = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ | |
4397 | if (*s != ';' && *s != '}' && *s != tmp | |
4398 | && (tmp != '=' || *s != ')')) { | |
4399 | const char q = ((*s == '\'') ? '"' : '\''); | |
4400 | /* If here for an expression, and parsed no attrs, back | |
4401 | off. */ | |
4402 | if (tmp == '=' && !attrs) { | |
4403 | s = PL_bufptr; | |
4404 | break; | |
4405 | } | |
4406 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
4407 | context messages from yyerror(). | |
4408 | */ | |
4409 | PL_bufptr = s; | |
10edeb5d JH |
4410 | yyerror( (const char *) |
4411 | (*s | |
4412 | ? Perl_form(aTHX_ "Invalid separator character " | |
4413 | "%c%c%c in attribute list", q, *s, q) | |
4414 | : "Unterminated attribute list" ) ); | |
90771dc0 NC |
4415 | if (attrs) |
4416 | op_free(attrs); | |
4417 | OPERATOR(':'); | |
09bef843 | 4418 | } |
09bef843 | 4419 | } |
f9829d6b | 4420 | got_attrs: |
09bef843 | 4421 | if (attrs) { |
cd81e915 | 4422 | start_force(PL_curforce); |
9ded7720 | 4423 | NEXTVAL_NEXTTOKE.opval = attrs; |
cd81e915 | 4424 | CURMAD('_', PL_nextwhite); |
89122651 | 4425 | force_next(THING); |
5db06880 NC |
4426 | } |
4427 | #ifdef PERL_MAD | |
4428 | if (PL_madskills) { | |
cd81e915 | 4429 | PL_thistoken = newSVpvn(SvPVX(PL_linestr) + stuffstart, |
5db06880 | 4430 | (s - SvPVX(PL_linestr)) - stuffstart); |
09bef843 | 4431 | } |
5db06880 | 4432 | #endif |
09bef843 SB |
4433 | TOKEN(COLONATTR); |
4434 | } | |
a0d0e21e | 4435 | OPERATOR(':'); |
8990e307 LW |
4436 | case '(': |
4437 | s++; | |
3280af22 NIS |
4438 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
4439 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 4440 | else |
3280af22 | 4441 | PL_expect = XTERM; |
29595ff2 | 4442 | s = SKIPSPACE1(s); |
a0d0e21e | 4443 | TOKEN('('); |
378cc40b | 4444 | case ';': |
f4dd75d9 | 4445 | CLINE; |
90771dc0 NC |
4446 | { |
4447 | const char tmp = *s++; | |
4448 | OPERATOR(tmp); | |
4449 | } | |
378cc40b | 4450 | case ')': |
90771dc0 NC |
4451 | { |
4452 | const char tmp = *s++; | |
29595ff2 | 4453 | s = SKIPSPACE1(s); |
90771dc0 NC |
4454 | if (*s == '{') |
4455 | PREBLOCK(tmp); | |
4456 | TERM(tmp); | |
4457 | } | |
79072805 LW |
4458 | case ']': |
4459 | s++; | |
3280af22 | 4460 | if (PL_lex_brackets <= 0) |
d98d5fff | 4461 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 4462 | else |
3280af22 NIS |
4463 | --PL_lex_brackets; |
4464 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4465 | if (PL_lex_brackets == 0) { | |
02255c60 FC |
4466 | if (*s == '-' && s[1] == '>') |
4467 | PL_lex_state = LEX_INTERPENDMAYBE; | |
4468 | else if (*s != '[' && *s != '{') | |
3280af22 | 4469 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4470 | } |
4471 | } | |
4633a7c4 | 4472 | TERM(']'); |
79072805 LW |
4473 | case '{': |
4474 | leftbracket: | |
79072805 | 4475 | s++; |
3280af22 | 4476 | if (PL_lex_brackets > 100) { |
8edd5f42 | 4477 | Renew(PL_lex_brackstack, PL_lex_brackets + 10, char); |
8990e307 | 4478 | } |
3280af22 | 4479 | switch (PL_expect) { |
a0d0e21e | 4480 | case XTERM: |
3280af22 | 4481 | if (PL_lex_formbrack) { |
a0d0e21e LW |
4482 | s--; |
4483 | PRETERMBLOCK(DO); | |
4484 | } | |
3280af22 NIS |
4485 | if (PL_oldoldbufptr == PL_last_lop) |
4486 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4487 | else |
3280af22 | 4488 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 4489 | OPERATOR(HASHBRACK); |
a0d0e21e | 4490 | case XOPERATOR: |
bf4acbe4 | 4491 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 4492 | s++; |
44a8e56a | 4493 | d = s; |
3280af22 NIS |
4494 | PL_tokenbuf[0] = '\0'; |
4495 | if (d < PL_bufend && *d == '-') { | |
4496 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 4497 | d++; |
bf4acbe4 | 4498 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 4499 | d++; |
4500 | } | |
7e2040f0 | 4501 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 4502 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 4503 | FALSE, &len); |
bf4acbe4 | 4504 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
4505 | d++; |
4506 | if (*d == '}') { | |
f54cb97a | 4507 | const char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 4508 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
4509 | if (minus) | |
4510 | force_next('-'); | |
748a9306 LW |
4511 | } |
4512 | } | |
4513 | /* FALL THROUGH */ | |
09bef843 | 4514 | case XATTRBLOCK: |
748a9306 | 4515 | case XBLOCK: |
3280af22 NIS |
4516 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
4517 | PL_expect = XSTATE; | |
a0d0e21e | 4518 | break; |
09bef843 | 4519 | case XATTRTERM: |
a0d0e21e | 4520 | case XTERMBLOCK: |
3280af22 NIS |
4521 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
4522 | PL_expect = XSTATE; | |
a0d0e21e LW |
4523 | break; |
4524 | default: { | |
f54cb97a | 4525 | const char *t; |
3280af22 NIS |
4526 | if (PL_oldoldbufptr == PL_last_lop) |
4527 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4528 | else |
3280af22 | 4529 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
29595ff2 | 4530 | s = SKIPSPACE1(s); |
8452ff4b SB |
4531 | if (*s == '}') { |
4532 | if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) { | |
4533 | PL_expect = XTERM; | |
4534 | /* This hack is to get the ${} in the message. */ | |
4535 | PL_bufptr = s+1; | |
4536 | yyerror("syntax error"); | |
4537 | break; | |
4538 | } | |
a0d0e21e | 4539 | OPERATOR(HASHBRACK); |
8452ff4b | 4540 | } |
b8a4b1be GS |
4541 | /* This hack serves to disambiguate a pair of curlies |
4542 | * as being a block or an anon hash. Normally, expectation | |
4543 | * determines that, but in cases where we're not in a | |
4544 | * position to expect anything in particular (like inside | |
4545 | * eval"") we have to resolve the ambiguity. This code | |
4546 | * covers the case where the first term in the curlies is a | |
4547 | * quoted string. Most other cases need to be explicitly | |
a0288114 | 4548 | * disambiguated by prepending a "+" before the opening |
b8a4b1be GS |
4549 | * curly in order to force resolution as an anon hash. |
4550 | * | |
4551 | * XXX should probably propagate the outer expectation | |
4552 | * into eval"" to rely less on this hack, but that could | |
4553 | * potentially break current behavior of eval"". | |
4554 | * GSAR 97-07-21 | |
4555 | */ | |
4556 | t = s; | |
4557 | if (*s == '\'' || *s == '"' || *s == '`') { | |
4558 | /* common case: get past first string, handling escapes */ | |
3280af22 | 4559 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
4560 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
4561 | t++; | |
4562 | t++; | |
a0d0e21e | 4563 | } |
b8a4b1be | 4564 | else if (*s == 'q') { |
3280af22 | 4565 | if (++t < PL_bufend |
b8a4b1be | 4566 | && (!isALNUM(*t) |
3280af22 | 4567 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
4568 | && !isALNUM(*t)))) |
4569 | { | |
abc667d1 | 4570 | /* skip q//-like construct */ |
f54cb97a | 4571 | const char *tmps; |
b8a4b1be GS |
4572 | char open, close, term; |
4573 | I32 brackets = 1; | |
4574 | ||
3280af22 | 4575 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be | 4576 | t++; |
abc667d1 DM |
4577 | /* check for q => */ |
4578 | if (t+1 < PL_bufend && t[0] == '=' && t[1] == '>') { | |
4579 | OPERATOR(HASHBRACK); | |
4580 | } | |
b8a4b1be GS |
4581 | term = *t; |
4582 | open = term; | |
4583 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
4584 | term = tmps[5]; | |
4585 | close = term; | |
4586 | if (open == close) | |
3280af22 NIS |
4587 | for (t++; t < PL_bufend; t++) { |
4588 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 4589 | t++; |
6d07e5e9 | 4590 | else if (*t == open) |
b8a4b1be GS |
4591 | break; |
4592 | } | |
abc667d1 | 4593 | else { |
3280af22 NIS |
4594 | for (t++; t < PL_bufend; t++) { |
4595 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 4596 | t++; |
6d07e5e9 | 4597 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
4598 | break; |
4599 | else if (*t == open) | |
4600 | brackets++; | |
4601 | } | |
abc667d1 DM |
4602 | } |
4603 | t++; | |
b8a4b1be | 4604 | } |
abc667d1 DM |
4605 | else |
4606 | /* skip plain q word */ | |
4607 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) | |
4608 | t += UTF8SKIP(t); | |
a0d0e21e | 4609 | } |
7e2040f0 | 4610 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 4611 | t += UTF8SKIP(t); |
7e2040f0 | 4612 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 4613 | t += UTF8SKIP(t); |
a0d0e21e | 4614 | } |
3280af22 | 4615 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 4616 | t++; |
b8a4b1be GS |
4617 | /* if comma follows first term, call it an anon hash */ |
4618 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 4619 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 4620 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 4621 | OPERATOR(HASHBRACK); |
3280af22 | 4622 | if (PL_expect == XREF) |
4e4e412b | 4623 | PL_expect = XTERM; |
a0d0e21e | 4624 | else { |
3280af22 NIS |
4625 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
4626 | PL_expect = XSTATE; | |
a0d0e21e | 4627 | } |
8990e307 | 4628 | } |
a0d0e21e | 4629 | break; |
463ee0b2 | 4630 | } |
6154021b | 4631 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 | 4632 | if (isSPACE(*s) || *s == '#') |
3280af22 | 4633 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 4634 | TOKEN('{'); |
378cc40b | 4635 | case '}': |
79072805 LW |
4636 | rightbracket: |
4637 | s++; | |
3280af22 | 4638 | if (PL_lex_brackets <= 0) |
d98d5fff | 4639 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 4640 | else |
3280af22 | 4641 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 4642 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
4643 | PL_lex_formbrack = 0; |
4644 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4645 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
4646 | if (PL_expect & XFAKEBRACK) { |
4647 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
4648 | PL_lex_state = LEX_INTERPEND; |
4649 | PL_bufptr = s; | |
5db06880 NC |
4650 | #if 0 |
4651 | if (PL_madskills) { | |
cd81e915 | 4652 | if (!PL_thiswhite) |
6b29d1f5 | 4653 | PL_thiswhite = newSVpvs(""); |
76f68e9b | 4654 | sv_catpvs(PL_thiswhite,"}"); |
5db06880 NC |
4655 | } |
4656 | #endif | |
cea2e8a9 | 4657 | return yylex(); /* ignore fake brackets */ |
79072805 | 4658 | } |
fa83b5b6 | 4659 | if (*s == '-' && s[1] == '>') |
3280af22 | 4660 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 4661 | else if (*s != '[' && *s != '{') |
3280af22 | 4662 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4663 | } |
4664 | } | |
9059aa12 LW |
4665 | if (PL_expect & XFAKEBRACK) { |
4666 | PL_expect &= XENUMMASK; | |
3280af22 | 4667 | PL_bufptr = s; |
cea2e8a9 | 4668 | return yylex(); /* ignore fake brackets */ |
748a9306 | 4669 | } |
cd81e915 | 4670 | start_force(PL_curforce); |
5db06880 NC |
4671 | if (PL_madskills) { |
4672 | curmad('X', newSVpvn(s-1,1)); | |
cd81e915 | 4673 | CURMAD('_', PL_thiswhite); |
5db06880 | 4674 | } |
79072805 | 4675 | force_next('}'); |
5db06880 | 4676 | #ifdef PERL_MAD |
cd81e915 | 4677 | if (!PL_thistoken) |
6b29d1f5 | 4678 | PL_thistoken = newSVpvs(""); |
5db06880 | 4679 | #endif |
79072805 | 4680 | TOKEN(';'); |
378cc40b LW |
4681 | case '&': |
4682 | s++; | |
90771dc0 | 4683 | if (*s++ == '&') |
a0d0e21e | 4684 | AOPERATOR(ANDAND); |
378cc40b | 4685 | s--; |
3280af22 | 4686 | if (PL_expect == XOPERATOR) { |
041457d9 DM |
4687 | if (PL_bufptr == PL_linestart && ckWARN(WARN_SEMICOLON) |
4688 | && isIDFIRST_lazy_if(s,UTF)) | |
7e2040f0 | 4689 | { |
57843af0 | 4690 | CopLINE_dec(PL_curcop); |
f1f66076 | 4691 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), "%s", PL_warn_nosemi); |
57843af0 | 4692 | CopLINE_inc(PL_curcop); |
463ee0b2 | 4693 | } |
79072805 | 4694 | BAop(OP_BIT_AND); |
463ee0b2 | 4695 | } |
79072805 | 4696 | |
3280af22 NIS |
4697 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
4698 | if (*PL_tokenbuf) { | |
4699 | PL_expect = XOPERATOR; | |
4700 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 4701 | } |
79072805 LW |
4702 | else |
4703 | PREREF('&'); | |
6154021b | 4704 | pl_yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
4705 | TERM('&'); |
4706 | ||
378cc40b LW |
4707 | case '|': |
4708 | s++; | |
90771dc0 | 4709 | if (*s++ == '|') |
a0d0e21e | 4710 | AOPERATOR(OROR); |
378cc40b | 4711 | s--; |
79072805 | 4712 | BOop(OP_BIT_OR); |
378cc40b LW |
4713 | case '=': |
4714 | s++; | |
748a9306 | 4715 | { |
90771dc0 NC |
4716 | const char tmp = *s++; |
4717 | if (tmp == '=') | |
4718 | Eop(OP_EQ); | |
4719 | if (tmp == '>') | |
4720 | OPERATOR(','); | |
4721 | if (tmp == '~') | |
4722 | PMop(OP_MATCH); | |
4723 | if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX) | |
4724 | && strchr("+-*/%.^&|<",tmp)) | |
4725 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4726 | "Reversed %c= operator",(int)tmp); | |
4727 | s--; | |
4728 | if (PL_expect == XSTATE && isALPHA(tmp) && | |
4729 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
4730 | { | |
4731 | if (PL_in_eval && !PL_rsfp) { | |
4732 | d = PL_bufend; | |
4733 | while (s < d) { | |
4734 | if (*s++ == '\n') { | |
4735 | incline(s); | |
4736 | if (strnEQ(s,"=cut",4)) { | |
4737 | s = strchr(s,'\n'); | |
4738 | if (s) | |
4739 | s++; | |
4740 | else | |
4741 | s = d; | |
4742 | incline(s); | |
4743 | goto retry; | |
4744 | } | |
4745 | } | |
a5f75d66 | 4746 | } |
90771dc0 | 4747 | goto retry; |
a5f75d66 | 4748 | } |
5db06880 NC |
4749 | #ifdef PERL_MAD |
4750 | if (PL_madskills) { | |
cd81e915 | 4751 | if (!PL_thiswhite) |
6b29d1f5 | 4752 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4753 | sv_catpvn(PL_thiswhite, PL_linestart, |
5db06880 NC |
4754 | PL_bufend - PL_linestart); |
4755 | } | |
4756 | #endif | |
90771dc0 NC |
4757 | s = PL_bufend; |
4758 | PL_doextract = TRUE; | |
4759 | goto retry; | |
a5f75d66 | 4760 | } |
a0d0e21e | 4761 | } |
3280af22 | 4762 | if (PL_lex_brackets < PL_lex_formbrack) { |
c35e046a | 4763 | const char *t = s; |
51882d45 | 4764 | #ifdef PERL_STRICT_CR |
c35e046a | 4765 | while (SPACE_OR_TAB(*t)) |
51882d45 | 4766 | #else |
c35e046a | 4767 | while (SPACE_OR_TAB(*t) || *t == '\r') |
51882d45 | 4768 | #endif |
c35e046a | 4769 | t++; |
a0d0e21e LW |
4770 | if (*t == '\n' || *t == '#') { |
4771 | s--; | |
3280af22 | 4772 | PL_expect = XBLOCK; |
a0d0e21e LW |
4773 | goto leftbracket; |
4774 | } | |
79072805 | 4775 | } |
6154021b | 4776 | pl_yylval.ival = 0; |
a0d0e21e | 4777 | OPERATOR(ASSIGNOP); |
378cc40b | 4778 | case '!': |
be25f609 | 4779 | if (PL_expect == XSTATE && s[1] == '!' && s[2] == '!') { |
4780 | s += 3; | |
4781 | LOP(OP_DIE,XTERM); | |
4782 | } | |
378cc40b | 4783 | s++; |
90771dc0 NC |
4784 | { |
4785 | const char tmp = *s++; | |
4786 | if (tmp == '=') { | |
4787 | /* was this !=~ where !~ was meant? | |
4788 | * warn on m:!=~\s+([/?]|[msy]\W|tr\W): */ | |
4789 | ||
4790 | if (*s == '~' && ckWARN(WARN_SYNTAX)) { | |
4791 | const char *t = s+1; | |
4792 | ||
4793 | while (t < PL_bufend && isSPACE(*t)) | |
4794 | ++t; | |
4795 | ||
4796 | if (*t == '/' || *t == '?' || | |
4797 | ((*t == 'm' || *t == 's' || *t == 'y') | |
4798 | && !isALNUM(t[1])) || | |
4799 | (*t == 't' && t[1] == 'r' && !isALNUM(t[2]))) | |
4800 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4801 | "!=~ should be !~"); | |
4802 | } | |
4803 | Eop(OP_NE); | |
4804 | } | |
4805 | if (tmp == '~') | |
4806 | PMop(OP_NOT); | |
4807 | } | |
378cc40b LW |
4808 | s--; |
4809 | OPERATOR('!'); | |
4810 | case '<': | |
3280af22 | 4811 | if (PL_expect != XOPERATOR) { |
93a17b20 | 4812 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 4813 | check_uni(); |
79072805 LW |
4814 | if (s[1] == '<') |
4815 | s = scan_heredoc(s); | |
4816 | else | |
4817 | s = scan_inputsymbol(s); | |
4818 | TERM(sublex_start()); | |
378cc40b LW |
4819 | } |
4820 | s++; | |
90771dc0 NC |
4821 | { |
4822 | char tmp = *s++; | |
4823 | if (tmp == '<') | |
4824 | SHop(OP_LEFT_SHIFT); | |
4825 | if (tmp == '=') { | |
4826 | tmp = *s++; | |
4827 | if (tmp == '>') | |
4828 | Eop(OP_NCMP); | |
4829 | s--; | |
4830 | Rop(OP_LE); | |
4831 | } | |
395c3793 | 4832 | } |
378cc40b | 4833 | s--; |
79072805 | 4834 | Rop(OP_LT); |
378cc40b LW |
4835 | case '>': |
4836 | s++; | |
90771dc0 NC |
4837 | { |
4838 | const char tmp = *s++; | |
4839 | if (tmp == '>') | |
4840 | SHop(OP_RIGHT_SHIFT); | |
d4c19fe8 | 4841 | else if (tmp == '=') |
90771dc0 NC |
4842 | Rop(OP_GE); |
4843 | } | |
378cc40b | 4844 | s--; |
79072805 | 4845 | Rop(OP_GT); |
378cc40b LW |
4846 | |
4847 | case '$': | |
bbce6d69 | 4848 | CLINE; |
4849 | ||
3280af22 NIS |
4850 | if (PL_expect == XOPERATOR) { |
4851 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4852 | PL_expect = XTERM; | |
c445ea15 | 4853 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4854 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4855 | } |
8990e307 | 4856 | } |
a0d0e21e | 4857 | |
7e2040f0 | 4858 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-", s[2]))) { |
3280af22 | 4859 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
4860 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
4861 | sizeof PL_tokenbuf - 1, FALSE); | |
4862 | if (PL_expect == XOPERATOR) | |
4863 | no_op("Array length", s); | |
3280af22 | 4864 | if (!PL_tokenbuf[1]) |
a0d0e21e | 4865 | PREREF(DOLSHARP); |
3280af22 NIS |
4866 | PL_expect = XOPERATOR; |
4867 | PL_pending_ident = '#'; | |
463ee0b2 | 4868 | TOKEN(DOLSHARP); |
79072805 | 4869 | } |
bbce6d69 | 4870 | |
3280af22 | 4871 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
4872 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
4873 | sizeof PL_tokenbuf - 1, FALSE); | |
4874 | if (PL_expect == XOPERATOR) | |
4875 | no_op("Scalar", s); | |
3280af22 NIS |
4876 | if (!PL_tokenbuf[1]) { |
4877 | if (s == PL_bufend) | |
bbce6d69 | 4878 | yyerror("Final $ should be \\$ or $name"); |
4879 | PREREF('$'); | |
8990e307 | 4880 | } |
a0d0e21e | 4881 | |
bbce6d69 | 4882 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 4883 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
6154021b | 4884 | pl_yylval.opval = newSVOP(OP_CONST, 0, |
fc15ae8f | 4885 | newSViv(CopARYBASE_get(&PL_compiling))); |
6154021b | 4886 | pl_yylval.opval->op_private = OPpCONST_ARYBASE; |
bbce6d69 | 4887 | TERM(THING); |
4888 | } | |
4889 | ||
ff68c719 | 4890 | d = s; |
90771dc0 NC |
4891 | { |
4892 | const char tmp = *s; | |
4893 | if (PL_lex_state == LEX_NORMAL) | |
29595ff2 | 4894 | s = SKIPSPACE1(s); |
ff68c719 | 4895 | |
90771dc0 NC |
4896 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) |
4897 | && intuit_more(s)) { | |
4898 | if (*s == '[') { | |
4899 | PL_tokenbuf[0] = '@'; | |
4900 | if (ckWARN(WARN_SYNTAX)) { | |
c35e046a AL |
4901 | char *t = s+1; |
4902 | ||
4903 | while (isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$') | |
4904 | t++; | |
90771dc0 | 4905 | if (*t++ == ',') { |
29595ff2 | 4906 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
90771dc0 NC |
4907 | while (t < PL_bufend && *t != ']') |
4908 | t++; | |
9014280d | 4909 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
90771dc0 | 4910 | "Multidimensional syntax %.*s not supported", |
36c7798d | 4911 | (int)((t - PL_bufptr) + 1), PL_bufptr); |
90771dc0 | 4912 | } |
748a9306 | 4913 | } |
93a17b20 | 4914 | } |
90771dc0 NC |
4915 | else if (*s == '{') { |
4916 | char *t; | |
4917 | PL_tokenbuf[0] = '%'; | |
4918 | if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX) | |
4919 | && (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
4920 | { | |
4921 | char tmpbuf[sizeof PL_tokenbuf]; | |
c35e046a AL |
4922 | do { |
4923 | t++; | |
4924 | } while (isSPACE(*t)); | |
90771dc0 | 4925 | if (isIDFIRST_lazy_if(t,UTF)) { |
780a5241 | 4926 | STRLEN len; |
90771dc0 | 4927 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, |
780a5241 | 4928 | &len); |
c35e046a AL |
4929 | while (isSPACE(*t)) |
4930 | t++; | |
780a5241 | 4931 | if (*t == ';' && get_cvn_flags(tmpbuf, len, 0)) |
90771dc0 NC |
4932 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
4933 | "You need to quote \"%s\"", | |
4934 | tmpbuf); | |
4935 | } | |
4936 | } | |
4937 | } | |
93a17b20 | 4938 | } |
bbce6d69 | 4939 | |
90771dc0 NC |
4940 | PL_expect = XOPERATOR; |
4941 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { | |
4942 | const bool islop = (PL_last_lop == PL_oldoldbufptr); | |
4943 | if (!islop || PL_last_lop_op == OP_GREPSTART) | |
4944 | PL_expect = XOPERATOR; | |
4945 | else if (strchr("$@\"'`q", *s)) | |
4946 | PL_expect = XTERM; /* e.g. print $fh "foo" */ | |
4947 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) | |
4948 | PL_expect = XTERM; /* e.g. print $fh &sub */ | |
4949 | else if (isIDFIRST_lazy_if(s,UTF)) { | |
4950 | char tmpbuf[sizeof PL_tokenbuf]; | |
4951 | int t2; | |
4952 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
5458a98a | 4953 | if ((t2 = keyword(tmpbuf, len, 0))) { |
90771dc0 NC |
4954 | /* binary operators exclude handle interpretations */ |
4955 | switch (t2) { | |
4956 | case -KEY_x: | |
4957 | case -KEY_eq: | |
4958 | case -KEY_ne: | |
4959 | case -KEY_gt: | |
4960 | case -KEY_lt: | |
4961 | case -KEY_ge: | |
4962 | case -KEY_le: | |
4963 | case -KEY_cmp: | |
4964 | break; | |
4965 | default: | |
4966 | PL_expect = XTERM; /* e.g. print $fh length() */ | |
4967 | break; | |
4968 | } | |
4969 | } | |
4970 | else { | |
4971 | PL_expect = XTERM; /* e.g. print $fh subr() */ | |
84902520 TB |
4972 | } |
4973 | } | |
90771dc0 NC |
4974 | else if (isDIGIT(*s)) |
4975 | PL_expect = XTERM; /* e.g. print $fh 3 */ | |
4976 | else if (*s == '.' && isDIGIT(s[1])) | |
4977 | PL_expect = XTERM; /* e.g. print $fh .3 */ | |
4978 | else if ((*s == '?' || *s == '-' || *s == '+') | |
4979 | && !isSPACE(s[1]) && s[1] != '=') | |
4980 | PL_expect = XTERM; /* e.g. print $fh -1 */ | |
4981 | else if (*s == '/' && !isSPACE(s[1]) && s[1] != '=' | |
4982 | && s[1] != '/') | |
4983 | PL_expect = XTERM; /* e.g. print $fh /.../ | |
4984 | XXX except DORDOR operator | |
4985 | */ | |
4986 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) | |
4987 | && s[2] != '=') | |
4988 | PL_expect = XTERM; /* print $fh <<"EOF" */ | |
93a17b20 | 4989 | } |
bbce6d69 | 4990 | } |
3280af22 | 4991 | PL_pending_ident = '$'; |
79072805 | 4992 | TOKEN('$'); |
378cc40b LW |
4993 | |
4994 | case '@': | |
3280af22 | 4995 | if (PL_expect == XOPERATOR) |
bbce6d69 | 4996 | no_op("Array", s); |
3280af22 NIS |
4997 | PL_tokenbuf[0] = '@'; |
4998 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
4999 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 5000 | PREREF('@'); |
5001 | } | |
3280af22 | 5002 | if (PL_lex_state == LEX_NORMAL) |
29595ff2 | 5003 | s = SKIPSPACE1(s); |
3280af22 | 5004 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 5005 | if (*s == '{') |
3280af22 | 5006 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
5007 | |
5008 | /* Warn about @ where they meant $. */ | |
041457d9 DM |
5009 | if (*s == '[' || *s == '{') { |
5010 | if (ckWARN(WARN_SYNTAX)) { | |
f54cb97a | 5011 | const char *t = s + 1; |
7e2040f0 | 5012 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
5013 | t++; |
5014 | if (*t == '}' || *t == ']') { | |
5015 | t++; | |
29595ff2 | 5016 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
9014280d | 5017 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 5018 | "Scalar value %.*s better written as $%.*s", |
36c7798d DM |
5019 | (int)(t-PL_bufptr), PL_bufptr, |
5020 | (int)(t-PL_bufptr-1), PL_bufptr+1); | |
a0d0e21e | 5021 | } |
93a17b20 LW |
5022 | } |
5023 | } | |
463ee0b2 | 5024 | } |
3280af22 | 5025 | PL_pending_ident = '@'; |
79072805 | 5026 | TERM('@'); |
378cc40b | 5027 | |
c963b151 | 5028 | case '/': /* may be division, defined-or, or pattern */ |
6f33ba73 RGS |
5029 | if (PL_expect == XTERMORDORDOR && s[1] == '/') { |
5030 | s += 2; | |
5031 | AOPERATOR(DORDOR); | |
5032 | } | |
c963b151 | 5033 | case '?': /* may either be conditional or pattern */ |
be25f609 | 5034 | if (PL_expect == XSTATE && s[1] == '?' && s[2] == '?') { |
5035 | s += 3; | |
5036 | LOP(OP_WARN,XTERM); | |
5037 | } | |
5038 | if (PL_expect == XOPERATOR) { | |
90771dc0 | 5039 | char tmp = *s++; |
c963b151 | 5040 | if(tmp == '?') { |
be25f609 | 5041 | OPERATOR('?'); |
c963b151 BD |
5042 | } |
5043 | else { | |
5044 | tmp = *s++; | |
5045 | if(tmp == '/') { | |
5046 | /* A // operator. */ | |
5047 | AOPERATOR(DORDOR); | |
5048 | } | |
5049 | else { | |
5050 | s--; | |
5051 | Mop(OP_DIVIDE); | |
5052 | } | |
5053 | } | |
5054 | } | |
5055 | else { | |
5056 | /* Disable warning on "study /blah/" */ | |
5057 | if (PL_oldoldbufptr == PL_last_uni | |
5058 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
5059 | || memNE(PL_last_uni, "study", 5) | |
5060 | || isALNUM_lazy_if(PL_last_uni+5,UTF) | |
5061 | )) | |
5062 | check_uni(); | |
5063 | s = scan_pat(s,OP_MATCH); | |
5064 | TERM(sublex_start()); | |
5065 | } | |
378cc40b LW |
5066 | |
5067 | case '.': | |
51882d45 GS |
5068 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
5069 | #ifdef PERL_STRICT_CR | |
5070 | && s[1] == '\n' | |
5071 | #else | |
5072 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
5073 | #endif | |
5074 | && (s == PL_linestart || s[-1] == '\n') ) | |
5075 | { | |
3280af22 NIS |
5076 | PL_lex_formbrack = 0; |
5077 | PL_expect = XSTATE; | |
79072805 LW |
5078 | goto rightbracket; |
5079 | } | |
be25f609 | 5080 | if (PL_expect == XSTATE && s[1] == '.' && s[2] == '.') { |
5081 | s += 3; | |
5082 | OPERATOR(YADAYADA); | |
5083 | } | |
3280af22 | 5084 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
90771dc0 | 5085 | char tmp = *s++; |
a687059c LW |
5086 | if (*s == tmp) { |
5087 | s++; | |
2f3197b3 LW |
5088 | if (*s == tmp) { |
5089 | s++; | |
6154021b | 5090 | pl_yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
5091 | } |
5092 | else | |
6154021b | 5093 | pl_yylval.ival = 0; |
378cc40b | 5094 | OPERATOR(DOTDOT); |
a687059c | 5095 | } |
3280af22 | 5096 | if (PL_expect != XOPERATOR) |
2f3197b3 | 5097 | check_uni(); |
79072805 | 5098 | Aop(OP_CONCAT); |
378cc40b LW |
5099 | } |
5100 | /* FALL THROUGH */ | |
5101 | case '0': case '1': case '2': case '3': case '4': | |
5102 | case '5': case '6': case '7': case '8': case '9': | |
6154021b | 5103 | s = scan_num(s, &pl_yylval); |
931e0695 | 5104 | DEBUG_T( { printbuf("### Saw number in %s\n", s); } ); |
3280af22 | 5105 | if (PL_expect == XOPERATOR) |
8990e307 | 5106 | no_op("Number",s); |
79072805 LW |
5107 | TERM(THING); |
5108 | ||
5109 | case '\'': | |
5db06880 | 5110 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5111 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
5112 | if (PL_expect == XOPERATOR) { |
5113 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
5114 | PL_expect = XTERM; | |
c445ea15 | 5115 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 5116 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 5117 | } |
463ee0b2 | 5118 | else |
8990e307 | 5119 | no_op("String",s); |
463ee0b2 | 5120 | } |
79072805 | 5121 | if (!s) |
d4c19fe8 | 5122 | missingterm(NULL); |
6154021b | 5123 | pl_yylval.ival = OP_CONST; |
79072805 LW |
5124 | TERM(sublex_start()); |
5125 | ||
5126 | case '"': | |
5db06880 | 5127 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5128 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
5129 | if (PL_expect == XOPERATOR) { |
5130 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
5131 | PL_expect = XTERM; | |
c445ea15 | 5132 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 5133 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 5134 | } |
463ee0b2 | 5135 | else |
8990e307 | 5136 | no_op("String",s); |
463ee0b2 | 5137 | } |
79072805 | 5138 | if (!s) |
d4c19fe8 | 5139 | missingterm(NULL); |
6154021b | 5140 | pl_yylval.ival = OP_CONST; |
cfd0369c NC |
5141 | /* FIXME. I think that this can be const if char *d is replaced by |
5142 | more localised variables. */ | |
3280af22 | 5143 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
63cd0674 | 5144 | if (*d == '$' || *d == '@' || *d == '\\' || !UTF8_IS_INVARIANT((U8)*d)) { |
6154021b | 5145 | pl_yylval.ival = OP_STRINGIFY; |
4633a7c4 LW |
5146 | break; |
5147 | } | |
5148 | } | |
79072805 LW |
5149 | TERM(sublex_start()); |
5150 | ||
5151 | case '`': | |
5db06880 | 5152 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5153 | DEBUG_T( { printbuf("### Saw backtick string before %s\n", s); } ); |
3280af22 | 5154 | if (PL_expect == XOPERATOR) |
8990e307 | 5155 | no_op("Backticks",s); |
79072805 | 5156 | if (!s) |
d4c19fe8 | 5157 | missingterm(NULL); |
9b201d7d | 5158 | readpipe_override(); |
79072805 LW |
5159 | TERM(sublex_start()); |
5160 | ||
5161 | case '\\': | |
5162 | s++; | |
041457d9 | 5163 | if (PL_lex_inwhat && isDIGIT(*s) && ckWARN(WARN_SYNTAX)) |
9014280d | 5164 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression", |
599cee73 | 5165 | *s, *s); |
3280af22 | 5166 | if (PL_expect == XOPERATOR) |
8990e307 | 5167 | no_op("Backslash",s); |
79072805 LW |
5168 | OPERATOR(REFGEN); |
5169 | ||
a7cb1f99 | 5170 | case 'v': |
e526c9e6 | 5171 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
f54cb97a | 5172 | char *start = s + 2; |
dd629d5b | 5173 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
5174 | start++; |
5175 | if (*start == '.' && isDIGIT(start[1])) { | |
6154021b | 5176 | s = scan_num(s, &pl_yylval); |
a7cb1f99 GS |
5177 | TERM(THING); |
5178 | } | |
e526c9e6 | 5179 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
6f33ba73 RGS |
5180 | else if (!isALPHA(*start) && (PL_expect == XTERM |
5181 | || PL_expect == XREF || PL_expect == XSTATE | |
5182 | || PL_expect == XTERMORDORDOR)) { | |
9bde8eb0 | 5183 | GV *const gv = gv_fetchpvn_flags(s, start - s, 0, SVt_PVCV); |
e526c9e6 | 5184 | if (!gv) { |
6154021b | 5185 | s = scan_num(s, &pl_yylval); |
e526c9e6 GS |
5186 | TERM(THING); |
5187 | } | |
5188 | } | |
a7cb1f99 GS |
5189 | } |
5190 | goto keylookup; | |
79072805 | 5191 | case 'x': |
3280af22 | 5192 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
5193 | s++; |
5194 | Mop(OP_REPEAT); | |
2f3197b3 | 5195 | } |
79072805 LW |
5196 | goto keylookup; |
5197 | ||
378cc40b | 5198 | case '_': |
79072805 LW |
5199 | case 'a': case 'A': |
5200 | case 'b': case 'B': | |
5201 | case 'c': case 'C': | |
5202 | case 'd': case 'D': | |
5203 | case 'e': case 'E': | |
5204 | case 'f': case 'F': | |
5205 | case 'g': case 'G': | |
5206 | case 'h': case 'H': | |
5207 | case 'i': case 'I': | |
5208 | case 'j': case 'J': | |
5209 | case 'k': case 'K': | |
5210 | case 'l': case 'L': | |
5211 | case 'm': case 'M': | |
5212 | case 'n': case 'N': | |
5213 | case 'o': case 'O': | |
5214 | case 'p': case 'P': | |
5215 | case 'q': case 'Q': | |
5216 | case 'r': case 'R': | |
5217 | case 's': case 'S': | |
5218 | case 't': case 'T': | |
5219 | case 'u': case 'U': | |
a7cb1f99 | 5220 | case 'V': |
79072805 LW |
5221 | case 'w': case 'W': |
5222 | case 'X': | |
5223 | case 'y': case 'Y': | |
5224 | case 'z': case 'Z': | |
5225 | ||
49dc05e3 | 5226 | keylookup: { |
90771dc0 | 5227 | I32 tmp; |
10edeb5d JH |
5228 | |
5229 | orig_keyword = 0; | |
5230 | gv = NULL; | |
5231 | gvp = NULL; | |
49dc05e3 | 5232 | |
3280af22 NIS |
5233 | PL_bufptr = s; |
5234 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 5235 | |
5236 | /* Some keywords can be followed by any delimiter, including ':' */ | |
155aba94 GS |
5237 | tmp = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
5238 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || | |
5239 | (PL_tokenbuf[0] == 'q' && | |
5240 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 5241 | |
5242 | /* x::* is just a word, unless x is "CORE" */ | |
3280af22 | 5243 | if (!tmp && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
5244 | goto just_a_word; |
5245 | ||
3643fb5f | 5246 | d = s; |
3280af22 | 5247 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
5248 | d++; /* no comments skipped here, or s### is misparsed */ |
5249 | ||
5250 | /* Is this a label? */ | |
3280af22 NIS |
5251 | if (!tmp && PL_expect == XSTATE |
5252 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
8ebc5c01 | 5253 | s = d + 1; |
6154021b | 5254 | pl_yylval.pval = CopLABEL_alloc(PL_tokenbuf); |
8ebc5c01 | 5255 | CLINE; |
5256 | TOKEN(LABEL); | |
3643fb5f CS |
5257 | } |
5258 | ||
5259 | /* Check for keywords */ | |
5458a98a | 5260 | tmp = keyword(PL_tokenbuf, len, 0); |
748a9306 LW |
5261 | |
5262 | /* Is this a word before a => operator? */ | |
1c3923b3 | 5263 | if (*d == '=' && d[1] == '>') { |
748a9306 | 5264 | CLINE; |
6154021b | 5265 | pl_yylval.opval |
d0a148a6 NC |
5266 | = (OP*)newSVOP(OP_CONST, 0, |
5267 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
6154021b | 5268 | pl_yylval.opval->op_private = OPpCONST_BARE; |
748a9306 LW |
5269 | TERM(WORD); |
5270 | } | |
5271 | ||
a0d0e21e | 5272 | if (tmp < 0) { /* second-class keyword? */ |
cbbf8932 AL |
5273 | GV *ogv = NULL; /* override (winner) */ |
5274 | GV *hgv = NULL; /* hidden (loser) */ | |
3280af22 | 5275 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 5276 | CV *cv; |
90e5519e | 5277 | if ((gv = gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVCV)) && |
56f7f34b CS |
5278 | (cv = GvCVu(gv))) |
5279 | { | |
5280 | if (GvIMPORTED_CV(gv)) | |
5281 | ogv = gv; | |
5282 | else if (! CvMETHOD(cv)) | |
5283 | hgv = gv; | |
5284 | } | |
5285 | if (!ogv && | |
3280af22 | 5286 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
9e0d86f8 | 5287 | (gv = *gvp) && isGV_with_GP(gv) && |
56f7f34b CS |
5288 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
5289 | { | |
5290 | ogv = gv; | |
5291 | } | |
5292 | } | |
5293 | if (ogv) { | |
30fe34ed | 5294 | orig_keyword = tmp; |
56f7f34b | 5295 | tmp = 0; /* overridden by import or by GLOBAL */ |
6e7b2336 GS |
5296 | } |
5297 | else if (gv && !gvp | |
5298 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
47f9f84c | 5299 | && GvCVu(gv)) |
6e7b2336 GS |
5300 | { |
5301 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 5302 | } |
56f7f34b CS |
5303 | else { /* no override */ |
5304 | tmp = -tmp; | |
ac206dc8 | 5305 | if (tmp == KEY_dump && ckWARN(WARN_MISC)) { |
9014280d | 5306 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
ac206dc8 RGS |
5307 | "dump() better written as CORE::dump()"); |
5308 | } | |
a0714e2c | 5309 | gv = NULL; |
56f7f34b | 5310 | gvp = 0; |
041457d9 DM |
5311 | if (hgv && tmp != KEY_x && tmp != KEY_CORE |
5312 | && ckWARN(WARN_AMBIGUOUS)) /* never ambiguous */ | |
9014280d | 5313 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 5314 | "Ambiguous call resolved as CORE::%s(), %s", |
2f3ca594 | 5315 | GvENAME(hgv), "qualify as such or use &"); |
49dc05e3 | 5316 | } |
a0d0e21e LW |
5317 | } |
5318 | ||
5319 | reserved_word: | |
5320 | switch (tmp) { | |
79072805 LW |
5321 | |
5322 | default: /* not a keyword */ | |
0bfa2a8a NC |
5323 | /* Trade off - by using this evil construction we can pull the |
5324 | variable gv into the block labelled keylookup. If not, then | |
5325 | we have to give it function scope so that the goto from the | |
5326 | earlier ':' case doesn't bypass the initialisation. */ | |
5327 | if (0) { | |
5328 | just_a_word_zero_gv: | |
5329 | gv = NULL; | |
5330 | gvp = NULL; | |
8bee0991 | 5331 | orig_keyword = 0; |
0bfa2a8a | 5332 | } |
93a17b20 | 5333 | just_a_word: { |
96e4d5b1 | 5334 | SV *sv; |
ce29ac45 | 5335 | int pkgname = 0; |
f54cb97a | 5336 | const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
5069cc75 | 5337 | CV *cv; |
5db06880 | 5338 | #ifdef PERL_MAD |
cd81e915 | 5339 | SV *nextPL_nextwhite = 0; |
5db06880 NC |
5340 | #endif |
5341 | ||
8990e307 LW |
5342 | |
5343 | /* Get the rest if it looks like a package qualifier */ | |
5344 | ||
155aba94 | 5345 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 5346 | STRLEN morelen; |
3280af22 | 5347 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
5348 | TRUE, &morelen); |
5349 | if (!morelen) | |
cea2e8a9 | 5350 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 5351 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 5352 | len += morelen; |
ce29ac45 | 5353 | pkgname = 1; |
a0d0e21e | 5354 | } |
8990e307 | 5355 | |
3280af22 NIS |
5356 | if (PL_expect == XOPERATOR) { |
5357 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 5358 | CopLINE_dec(PL_curcop); |
f1f66076 | 5359 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), "%s", PL_warn_nosemi); |
57843af0 | 5360 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
5361 | } |
5362 | else | |
54310121 | 5363 | no_op("Bareword",s); |
463ee0b2 | 5364 | } |
8990e307 | 5365 | |
c3e0f903 GS |
5366 | /* Look for a subroutine with this name in current package, |
5367 | unless name is "Foo::", in which case Foo is a bearword | |
5368 | (and a package name). */ | |
5369 | ||
5db06880 | 5370 | if (len > 2 && !PL_madskills && |
3280af22 | 5371 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 5372 | { |
f776e3cd | 5373 | if (ckWARN(WARN_BAREWORD) |
90e5519e | 5374 | && ! gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVHV)) |
9014280d | 5375 | Perl_warner(aTHX_ packWARN(WARN_BAREWORD), |
599cee73 | 5376 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 5377 | PL_tokenbuf); |
c3e0f903 | 5378 | len -= 2; |
3280af22 | 5379 | PL_tokenbuf[len] = '\0'; |
a0714e2c | 5380 | gv = NULL; |
c3e0f903 GS |
5381 | gvp = 0; |
5382 | } | |
5383 | else { | |
62d55b22 NC |
5384 | if (!gv) { |
5385 | /* Mustn't actually add anything to a symbol table. | |
5386 | But also don't want to "initialise" any placeholder | |
5387 | constants that might already be there into full | |
5388 | blown PVGVs with attached PVCV. */ | |
90e5519e NC |
5389 | gv = gv_fetchpvn_flags(PL_tokenbuf, len, |
5390 | GV_NOADD_NOINIT, SVt_PVCV); | |
62d55b22 | 5391 | } |
b3d904f3 | 5392 | len = 0; |
c3e0f903 GS |
5393 | } |
5394 | ||
5395 | /* if we saw a global override before, get the right name */ | |
8990e307 | 5396 | |
49dc05e3 | 5397 | if (gvp) { |
396482e1 | 5398 | sv = newSVpvs("CORE::GLOBAL::"); |
3280af22 | 5399 | sv_catpv(sv,PL_tokenbuf); |
49dc05e3 | 5400 | } |
8a7a129d NC |
5401 | else { |
5402 | /* If len is 0, newSVpv does strlen(), which is correct. | |
5403 | If len is non-zero, then it will be the true length, | |
5404 | and so the scalar will be created correctly. */ | |
5405 | sv = newSVpv(PL_tokenbuf,len); | |
5406 | } | |
5db06880 | 5407 | #ifdef PERL_MAD |
cd81e915 NC |
5408 | if (PL_madskills && !PL_thistoken) { |
5409 | char *start = SvPVX(PL_linestr) + PL_realtokenstart; | |
9ff8e806 | 5410 | PL_thistoken = newSVpvn(start,s - start); |
cd81e915 | 5411 | PL_realtokenstart = s - SvPVX(PL_linestr); |
5db06880 NC |
5412 | } |
5413 | #endif | |
8990e307 | 5414 | |
a0d0e21e LW |
5415 | /* Presume this is going to be a bareword of some sort. */ |
5416 | ||
5417 | CLINE; | |
6154021b RGS |
5418 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
5419 | pl_yylval.opval->op_private = OPpCONST_BARE; | |
8f8cf39c JH |
5420 | /* UTF-8 package name? */ |
5421 | if (UTF && !IN_BYTES && | |
95a20fc0 | 5422 | is_utf8_string((U8*)SvPVX_const(sv), SvCUR(sv))) |
8f8cf39c | 5423 | SvUTF8_on(sv); |
a0d0e21e | 5424 | |
c3e0f903 GS |
5425 | /* And if "Foo::", then that's what it certainly is. */ |
5426 | ||
5427 | if (len) | |
5428 | goto safe_bareword; | |
5429 | ||
5069cc75 NC |
5430 | /* Do the explicit type check so that we don't need to force |
5431 | the initialisation of the symbol table to have a real GV. | |
5432 | Beware - gv may not really be a PVGV, cv may not really be | |
5433 | a PVCV, (because of the space optimisations that gv_init | |
5434 | understands) But they're true if for this symbol there is | |
5435 | respectively a typeglob and a subroutine. | |
5436 | */ | |
5437 | cv = gv ? ((SvTYPE(gv) == SVt_PVGV) | |
5438 | /* Real typeglob, so get the real subroutine: */ | |
5439 | ? GvCVu(gv) | |
5440 | /* A proxy for a subroutine in this package? */ | |
ea726b52 | 5441 | : SvOK(gv) ? MUTABLE_CV(gv) : NULL) |
5069cc75 NC |
5442 | : NULL; |
5443 | ||
8990e307 LW |
5444 | /* See if it's the indirect object for a list operator. */ |
5445 | ||
3280af22 NIS |
5446 | if (PL_oldoldbufptr && |
5447 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
5448 | (PL_oldoldbufptr == PL_last_lop |
5449 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 5450 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
5451 | (PL_expect == XREF || |
5452 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 5453 | { |
748a9306 LW |
5454 | bool immediate_paren = *s == '('; |
5455 | ||
a0d0e21e | 5456 | /* (Now we can afford to cross potential line boundary.) */ |
cd81e915 | 5457 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5db06880 | 5458 | #ifdef PERL_MAD |
cd81e915 | 5459 | PL_nextwhite = nextPL_nextwhite; /* assume no & deception */ |
5db06880 | 5460 | #endif |
a0d0e21e LW |
5461 | |
5462 | /* Two barewords in a row may indicate method call. */ | |
5463 | ||
62d55b22 NC |
5464 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && |
5465 | (tmp = intuit_method(s, gv, cv))) | |
bbf60fe6 | 5466 | return REPORT(tmp); |
a0d0e21e LW |
5467 | |
5468 | /* If not a declared subroutine, it's an indirect object. */ | |
5469 | /* (But it's an indir obj regardless for sort.) */ | |
7294df96 | 5470 | /* Also, if "_" follows a filetest operator, it's a bareword */ |
a0d0e21e | 5471 | |
7294df96 RGS |
5472 | if ( |
5473 | ( !immediate_paren && (PL_last_lop_op == OP_SORT || | |
5069cc75 | 5474 | ((!gv || !cv) && |
a9ef352a | 5475 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 5476 | PL_last_lop_op != OP_GREPSTART)))) |
7294df96 RGS |
5477 | || (PL_tokenbuf[0] == '_' && PL_tokenbuf[1] == '\0' |
5478 | && ((PL_opargs[PL_last_lop_op] & OA_CLASS_MASK) == OA_FILESTATOP)) | |
5479 | ) | |
a9ef352a | 5480 | { |
3280af22 | 5481 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 5482 | goto bareword; |
93a17b20 LW |
5483 | } |
5484 | } | |
8990e307 | 5485 | |
3280af22 | 5486 | PL_expect = XOPERATOR; |
5db06880 NC |
5487 | #ifdef PERL_MAD |
5488 | if (isSPACE(*s)) | |
cd81e915 NC |
5489 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5490 | PL_nextwhite = nextPL_nextwhite; | |
5db06880 | 5491 | #else |
8990e307 | 5492 | s = skipspace(s); |
5db06880 | 5493 | #endif |
1c3923b3 GS |
5494 | |
5495 | /* Is this a word before a => operator? */ | |
ce29ac45 | 5496 | if (*s == '=' && s[1] == '>' && !pkgname) { |
1c3923b3 | 5497 | CLINE; |
6154021b | 5498 | sv_setpv(((SVOP*)pl_yylval.opval)->op_sv, PL_tokenbuf); |
0064a8a9 | 5499 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
6154021b | 5500 | SvUTF8_on(((SVOP*)pl_yylval.opval)->op_sv); |
1c3923b3 GS |
5501 | TERM(WORD); |
5502 | } | |
5503 | ||
5504 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 5505 | if (*s == '(') { |
79072805 | 5506 | CLINE; |
5069cc75 | 5507 | if (cv) { |
c35e046a AL |
5508 | d = s + 1; |
5509 | while (SPACE_OR_TAB(*d)) | |
5510 | d++; | |
62d55b22 | 5511 | if (*d == ')' && (sv = gv_const_sv(gv))) { |
96e4d5b1 | 5512 | s = d + 1; |
c631f32b | 5513 | goto its_constant; |
96e4d5b1 | 5514 | } |
5515 | } | |
5db06880 NC |
5516 | #ifdef PERL_MAD |
5517 | if (PL_madskills) { | |
cd81e915 NC |
5518 | PL_nextwhite = PL_thiswhite; |
5519 | PL_thiswhite = 0; | |
5db06880 | 5520 | } |
cd81e915 | 5521 | start_force(PL_curforce); |
5db06880 | 5522 | #endif |
6154021b | 5523 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
3280af22 | 5524 | PL_expect = XOPERATOR; |
5db06880 NC |
5525 | #ifdef PERL_MAD |
5526 | if (PL_madskills) { | |
cd81e915 NC |
5527 | PL_nextwhite = nextPL_nextwhite; |
5528 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5529 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5530 | } |
5531 | #endif | |
93a17b20 | 5532 | force_next(WORD); |
6154021b | 5533 | pl_yylval.ival = 0; |
463ee0b2 | 5534 | TOKEN('&'); |
79072805 | 5535 | } |
93a17b20 | 5536 | |
a0d0e21e | 5537 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 5538 | |
62d55b22 | 5539 | if ((*s == '$' || *s == '{') && (!gv || !cv)) { |
3280af22 NIS |
5540 | PL_last_lop = PL_oldbufptr; |
5541 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 5542 | PREBLOCK(METHOD); |
463ee0b2 LW |
5543 | } |
5544 | ||
8990e307 LW |
5545 | /* If followed by a bareword, see if it looks like indir obj. */ |
5546 | ||
30fe34ed RGS |
5547 | if (!orig_keyword |
5548 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
62d55b22 | 5549 | && (tmp = intuit_method(s, gv, cv))) |
bbf60fe6 | 5550 | return REPORT(tmp); |
93a17b20 | 5551 | |
8990e307 LW |
5552 | /* Not a method, so call it a subroutine (if defined) */ |
5553 | ||
5069cc75 | 5554 | if (cv) { |
0453d815 | 5555 | if (lastchar == '-' && ckWARN_d(WARN_AMBIGUOUS)) |
9014280d | 5556 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5557 | "Ambiguous use of -%s resolved as -&%s()", |
3280af22 | 5558 | PL_tokenbuf, PL_tokenbuf); |
89bfa8cd | 5559 | /* Check for a constant sub */ |
c631f32b | 5560 | if ((sv = gv_const_sv(gv))) { |
96e4d5b1 | 5561 | its_constant: |
6154021b RGS |
5562 | SvREFCNT_dec(((SVOP*)pl_yylval.opval)->op_sv); |
5563 | ((SVOP*)pl_yylval.opval)->op_sv = SvREFCNT_inc_simple(sv); | |
5564 | pl_yylval.opval->op_private = 0; | |
96e4d5b1 | 5565 | TOKEN(WORD); |
89bfa8cd | 5566 | } |
5567 | ||
a5f75d66 | 5568 | /* Resolve to GV now. */ |
62d55b22 | 5569 | if (SvTYPE(gv) != SVt_PVGV) { |
b3d904f3 | 5570 | gv = gv_fetchpv(PL_tokenbuf, 0, SVt_PVCV); |
62d55b22 NC |
5571 | assert (SvTYPE(gv) == SVt_PVGV); |
5572 | /* cv must have been some sort of placeholder, so | |
5573 | now needs replacing with a real code reference. */ | |
5574 | cv = GvCV(gv); | |
5575 | } | |
5576 | ||
6154021b RGS |
5577 | op_free(pl_yylval.opval); |
5578 | pl_yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
5579 | pl_yylval.opval->op_private |= OPpENTERSUB_NOPAREN; | |
7a52d87a | 5580 | PL_last_lop = PL_oldbufptr; |
bf848113 | 5581 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 | 5582 | /* Is there a prototype? */ |
5db06880 NC |
5583 | if ( |
5584 | #ifdef PERL_MAD | |
5585 | cv && | |
5586 | #endif | |
d9f2850e RGS |
5587 | SvPOK(cv)) |
5588 | { | |
5f66b61c | 5589 | STRLEN protolen; |
daba3364 | 5590 | const char *proto = SvPV_const(MUTABLE_SV(cv), protolen); |
5f66b61c | 5591 | if (!protolen) |
4633a7c4 | 5592 | TERM(FUNC0SUB); |
8c28b960 | 5593 | if ((*proto == '$' || *proto == '_') && proto[1] == '\0') |
4633a7c4 | 5594 | OPERATOR(UNIOPSUB); |
0f5d0394 AE |
5595 | while (*proto == ';') |
5596 | proto++; | |
7a52d87a | 5597 | if (*proto == '&' && *s == '{') { |
49a54bbe NC |
5598 | if (PL_curstash) |
5599 | sv_setpvs(PL_subname, "__ANON__"); | |
5600 | else | |
5601 | sv_setpvs(PL_subname, "__ANON__::__ANON__"); | |
4633a7c4 LW |
5602 | PREBLOCK(LSTOPSUB); |
5603 | } | |
a9ef352a | 5604 | } |
5db06880 NC |
5605 | #ifdef PERL_MAD |
5606 | { | |
5607 | if (PL_madskills) { | |
cd81e915 NC |
5608 | PL_nextwhite = PL_thiswhite; |
5609 | PL_thiswhite = 0; | |
5db06880 | 5610 | } |
cd81e915 | 5611 | start_force(PL_curforce); |
6154021b | 5612 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
5db06880 NC |
5613 | PL_expect = XTERM; |
5614 | if (PL_madskills) { | |
cd81e915 NC |
5615 | PL_nextwhite = nextPL_nextwhite; |
5616 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5617 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5618 | } |
5619 | force_next(WORD); | |
5620 | TOKEN(NOAMP); | |
5621 | } | |
5622 | } | |
5623 | ||
5624 | /* Guess harder when madskills require "best effort". */ | |
5625 | if (PL_madskills && (!gv || !GvCVu(gv))) { | |
5626 | int probable_sub = 0; | |
5627 | if (strchr("\"'`$@%0123456789!*+{[<", *s)) | |
5628 | probable_sub = 1; | |
5629 | else if (isALPHA(*s)) { | |
5630 | char tmpbuf[1024]; | |
5631 | STRLEN tmplen; | |
5632 | d = s; | |
5633 | d = scan_word(d, tmpbuf, sizeof tmpbuf, TRUE, &tmplen); | |
5458a98a | 5634 | if (!keyword(tmpbuf, tmplen, 0)) |
5db06880 NC |
5635 | probable_sub = 1; |
5636 | else { | |
5637 | while (d < PL_bufend && isSPACE(*d)) | |
5638 | d++; | |
5639 | if (*d == '=' && d[1] == '>') | |
5640 | probable_sub = 1; | |
5641 | } | |
5642 | } | |
5643 | if (probable_sub) { | |
7a6d04f4 | 5644 | gv = gv_fetchpv(PL_tokenbuf, GV_ADD, SVt_PVCV); |
6154021b RGS |
5645 | op_free(pl_yylval.opval); |
5646 | pl_yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
5647 | pl_yylval.opval->op_private |= OPpENTERSUB_NOPAREN; | |
5db06880 NC |
5648 | PL_last_lop = PL_oldbufptr; |
5649 | PL_last_lop_op = OP_ENTERSUB; | |
cd81e915 NC |
5650 | PL_nextwhite = PL_thiswhite; |
5651 | PL_thiswhite = 0; | |
5652 | start_force(PL_curforce); | |
6154021b | 5653 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
5db06880 | 5654 | PL_expect = XTERM; |
cd81e915 NC |
5655 | PL_nextwhite = nextPL_nextwhite; |
5656 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5657 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5658 | force_next(WORD); |
5659 | TOKEN(NOAMP); | |
5660 | } | |
5661 | #else | |
6154021b | 5662 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
3280af22 | 5663 | PL_expect = XTERM; |
8990e307 LW |
5664 | force_next(WORD); |
5665 | TOKEN(NOAMP); | |
5db06880 | 5666 | #endif |
8990e307 | 5667 | } |
748a9306 | 5668 | |
8990e307 LW |
5669 | /* Call it a bare word */ |
5670 | ||
984f9f66 | 5671 | bareword: |
5603f27d | 5672 | if (PL_hints & HINT_STRICT_SUBS) |
6154021b | 5673 | pl_yylval.opval->op_private |= OPpCONST_STRICT; |
5603f27d | 5674 | else { |
041457d9 DM |
5675 | if (lastchar != '-') { |
5676 | if (ckWARN(WARN_RESERVED)) { | |
c35e046a AL |
5677 | d = PL_tokenbuf; |
5678 | while (isLOWER(*d)) | |
5679 | d++; | |
da51bb9b | 5680 | if (!*d && !gv_stashpv(PL_tokenbuf, 0)) |
9014280d | 5681 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
5682 | PL_tokenbuf); |
5683 | } | |
748a9306 LW |
5684 | } |
5685 | } | |
c3e0f903 GS |
5686 | |
5687 | safe_bareword: | |
3792a11b NC |
5688 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&') |
5689 | && ckWARN_d(WARN_AMBIGUOUS)) { | |
9014280d | 5690 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5691 | "Operator or semicolon missing before %c%s", |
3280af22 | 5692 | lastchar, PL_tokenbuf); |
9014280d | 5693 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5694 | "Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
5695 | lastchar, lastchar); |
5696 | } | |
93a17b20 | 5697 | TOKEN(WORD); |
79072805 | 5698 | } |
79072805 | 5699 | |
68dc0745 | 5700 | case KEY___FILE__: |
6154021b | 5701 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 5702 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 5703 | TERM(THING); |
5704 | ||
79072805 | 5705 | case KEY___LINE__: |
6154021b | 5706 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 5707 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 5708 | TERM(THING); |
68dc0745 | 5709 | |
5710 | case KEY___PACKAGE__: | |
6154021b | 5711 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
3280af22 | 5712 | (PL_curstash |
5aaec2b4 | 5713 | ? newSVhek(HvNAME_HEK(PL_curstash)) |
3280af22 | 5714 | : &PL_sv_undef)); |
79072805 | 5715 | TERM(THING); |
79072805 | 5716 | |
e50aee73 | 5717 | case KEY___DATA__: |
79072805 LW |
5718 | case KEY___END__: { |
5719 | GV *gv; | |
3280af22 | 5720 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
bfed75c6 | 5721 | const char *pname = "main"; |
3280af22 | 5722 | if (PL_tokenbuf[2] == 'D') |
bfcb3514 | 5723 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
f776e3cd NC |
5724 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD, |
5725 | SVt_PVIO); | |
a5f75d66 | 5726 | GvMULTI_on(gv); |
79072805 | 5727 | if (!GvIO(gv)) |
a0d0e21e | 5728 | GvIOp(gv) = newIO(); |
3280af22 | 5729 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
5730 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
5731 | { | |
f54cb97a | 5732 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
5733 | fcntl(fd,F_SETFD,fd >= 3); |
5734 | } | |
79072805 | 5735 | #endif |
fd049845 | 5736 | /* Mark this internal pseudo-handle as clean */ |
5737 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
4c84d7f2 | 5738 | if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 5739 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 5740 | else |
50952442 | 5741 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
5742 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
5743 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 5744 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 5745 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
5746 | if (PL_bufend-PL_bufptr > 2 |
5747 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
5748 | { |
5749 | Off_t loc = 0; | |
50952442 | 5750 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
5751 | loc = PerlIO_tell(PL_rsfp); |
5752 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
5753 | } | |
2986a63f JH |
5754 | #ifdef NETWARE |
5755 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
5756 | #else | |
c39cd008 | 5757 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 5758 | #endif /* NETWARE */ |
1143fce0 JH |
5759 | #ifdef PERLIO_IS_STDIO /* really? */ |
5760 | # if defined(__BORLANDC__) | |
cb359b41 JH |
5761 | /* XXX see note in do_binmode() */ |
5762 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
5763 | # endif |
5764 | #endif | |
c39cd008 GS |
5765 | if (loc > 0) |
5766 | PerlIO_seek(PL_rsfp, loc, 0); | |
5767 | } | |
5768 | } | |
5769 | #endif | |
7948272d | 5770 | #ifdef PERLIO_LAYERS |
52d2e0f4 JH |
5771 | if (!IN_BYTES) { |
5772 | if (UTF) | |
5773 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
5774 | else if (PL_encoding) { | |
5775 | SV *name; | |
5776 | dSP; | |
5777 | ENTER; | |
5778 | SAVETMPS; | |
5779 | PUSHMARK(sp); | |
5780 | EXTEND(SP, 1); | |
5781 | XPUSHs(PL_encoding); | |
5782 | PUTBACK; | |
5783 | call_method("name", G_SCALAR); | |
5784 | SPAGAIN; | |
5785 | name = POPs; | |
5786 | PUTBACK; | |
bfed75c6 | 5787 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
52d2e0f4 | 5788 | Perl_form(aTHX_ ":encoding(%"SVf")", |
be2597df | 5789 | SVfARG(name))); |
52d2e0f4 JH |
5790 | FREETMPS; |
5791 | LEAVE; | |
5792 | } | |
5793 | } | |
7948272d | 5794 | #endif |
5db06880 NC |
5795 | #ifdef PERL_MAD |
5796 | if (PL_madskills) { | |
cd81e915 NC |
5797 | if (PL_realtokenstart >= 0) { |
5798 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; | |
5799 | if (!PL_endwhite) | |
6b29d1f5 | 5800 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
5801 | sv_catsv(PL_endwhite, PL_thiswhite); |
5802 | PL_thiswhite = 0; | |
5803 | sv_catpvn(PL_endwhite, tstart, PL_bufend - tstart); | |
5804 | PL_realtokenstart = -1; | |
5db06880 | 5805 | } |
cd81e915 | 5806 | while ((s = filter_gets(PL_endwhite, PL_rsfp, |
1a9a51d4 | 5807 | SvCUR(PL_endwhite))) != NULL) ; |
5db06880 NC |
5808 | } |
5809 | #endif | |
4608196e | 5810 | PL_rsfp = NULL; |
79072805 LW |
5811 | } |
5812 | goto fake_eof; | |
e929a76b | 5813 | } |
de3bb511 | 5814 | |
8990e307 | 5815 | case KEY_AUTOLOAD: |
ed6116ce | 5816 | case KEY_DESTROY: |
79072805 | 5817 | case KEY_BEGIN: |
3c10abe3 | 5818 | case KEY_UNITCHECK: |
7d30b5c4 | 5819 | case KEY_CHECK: |
7d07dbc2 | 5820 | case KEY_INIT: |
7d30b5c4 | 5821 | case KEY_END: |
3280af22 NIS |
5822 | if (PL_expect == XSTATE) { |
5823 | s = PL_bufptr; | |
93a17b20 | 5824 | goto really_sub; |
79072805 LW |
5825 | } |
5826 | goto just_a_word; | |
5827 | ||
a0d0e21e LW |
5828 | case KEY_CORE: |
5829 | if (*s == ':' && s[1] == ':') { | |
5830 | s += 2; | |
748a9306 | 5831 | d = s; |
3280af22 | 5832 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 5833 | if (!(tmp = keyword(PL_tokenbuf, len, 0))) |
6798c92b | 5834 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); |
a0d0e21e LW |
5835 | if (tmp < 0) |
5836 | tmp = -tmp; | |
850e8516 | 5837 | else if (tmp == KEY_require || tmp == KEY_do) |
a72a1c8b | 5838 | /* that's a way to remember we saw "CORE::" */ |
850e8516 | 5839 | orig_keyword = tmp; |
a0d0e21e LW |
5840 | goto reserved_word; |
5841 | } | |
5842 | goto just_a_word; | |
5843 | ||
463ee0b2 LW |
5844 | case KEY_abs: |
5845 | UNI(OP_ABS); | |
5846 | ||
79072805 LW |
5847 | case KEY_alarm: |
5848 | UNI(OP_ALARM); | |
5849 | ||
5850 | case KEY_accept: | |
a0d0e21e | 5851 | LOP(OP_ACCEPT,XTERM); |
79072805 | 5852 | |
463ee0b2 LW |
5853 | case KEY_and: |
5854 | OPERATOR(ANDOP); | |
5855 | ||
79072805 | 5856 | case KEY_atan2: |
a0d0e21e | 5857 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 5858 | |
79072805 | 5859 | case KEY_bind: |
a0d0e21e | 5860 | LOP(OP_BIND,XTERM); |
79072805 LW |
5861 | |
5862 | case KEY_binmode: | |
1c1fc3ea | 5863 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
5864 | |
5865 | case KEY_bless: | |
a0d0e21e | 5866 | LOP(OP_BLESS,XTERM); |
79072805 | 5867 | |
0d863452 RH |
5868 | case KEY_break: |
5869 | FUN0(OP_BREAK); | |
5870 | ||
79072805 LW |
5871 | case KEY_chop: |
5872 | UNI(OP_CHOP); | |
5873 | ||
5874 | case KEY_continue: | |
0d863452 RH |
5875 | /* When 'use switch' is in effect, continue has a dual |
5876 | life as a control operator. */ | |
5877 | { | |
ef89dcc3 | 5878 | if (!FEATURE_IS_ENABLED("switch")) |
0d863452 RH |
5879 | PREBLOCK(CONTINUE); |
5880 | else { | |
5881 | /* We have to disambiguate the two senses of | |
5882 | "continue". If the next token is a '{' then | |
5883 | treat it as the start of a continue block; | |
5884 | otherwise treat it as a control operator. | |
5885 | */ | |
5886 | s = skipspace(s); | |
5887 | if (*s == '{') | |
79072805 | 5888 | PREBLOCK(CONTINUE); |
0d863452 RH |
5889 | else |
5890 | FUN0(OP_CONTINUE); | |
5891 | } | |
5892 | } | |
79072805 LW |
5893 | |
5894 | case KEY_chdir: | |
fafc274c NC |
5895 | /* may use HOME */ |
5896 | (void)gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV); | |
79072805 LW |
5897 | UNI(OP_CHDIR); |
5898 | ||
5899 | case KEY_close: | |
5900 | UNI(OP_CLOSE); | |
5901 | ||
5902 | case KEY_closedir: | |
5903 | UNI(OP_CLOSEDIR); | |
5904 | ||
5905 | case KEY_cmp: | |
5906 | Eop(OP_SCMP); | |
5907 | ||
5908 | case KEY_caller: | |
5909 | UNI(OP_CALLER); | |
5910 | ||
5911 | case KEY_crypt: | |
5912 | #ifdef FCRYPT | |
f4c556ac GS |
5913 | if (!PL_cryptseen) { |
5914 | PL_cryptseen = TRUE; | |
de3bb511 | 5915 | init_des(); |
f4c556ac | 5916 | } |
a687059c | 5917 | #endif |
a0d0e21e | 5918 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
5919 | |
5920 | case KEY_chmod: | |
a0d0e21e | 5921 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
5922 | |
5923 | case KEY_chown: | |
a0d0e21e | 5924 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
5925 | |
5926 | case KEY_connect: | |
a0d0e21e | 5927 | LOP(OP_CONNECT,XTERM); |
79072805 | 5928 | |
463ee0b2 LW |
5929 | case KEY_chr: |
5930 | UNI(OP_CHR); | |
5931 | ||
79072805 LW |
5932 | case KEY_cos: |
5933 | UNI(OP_COS); | |
5934 | ||
5935 | case KEY_chroot: | |
5936 | UNI(OP_CHROOT); | |
5937 | ||
0d863452 RH |
5938 | case KEY_default: |
5939 | PREBLOCK(DEFAULT); | |
5940 | ||
79072805 | 5941 | case KEY_do: |
29595ff2 | 5942 | s = SKIPSPACE1(s); |
79072805 | 5943 | if (*s == '{') |
a0d0e21e | 5944 | PRETERMBLOCK(DO); |
79072805 | 5945 | if (*s != '\'') |
89c5585f | 5946 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
850e8516 RGS |
5947 | if (orig_keyword == KEY_do) { |
5948 | orig_keyword = 0; | |
6154021b | 5949 | pl_yylval.ival = 1; |
850e8516 RGS |
5950 | } |
5951 | else | |
6154021b | 5952 | pl_yylval.ival = 0; |
378cc40b | 5953 | OPERATOR(DO); |
79072805 LW |
5954 | |
5955 | case KEY_die: | |
3280af22 | 5956 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 5957 | LOP(OP_DIE,XTERM); |
79072805 LW |
5958 | |
5959 | case KEY_defined: | |
5960 | UNI(OP_DEFINED); | |
5961 | ||
5962 | case KEY_delete: | |
a0d0e21e | 5963 | UNI(OP_DELETE); |
79072805 LW |
5964 | |
5965 | case KEY_dbmopen: | |
5c1737d1 | 5966 | gv_fetchpvs("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
a0d0e21e | 5967 | LOP(OP_DBMOPEN,XTERM); |
79072805 LW |
5968 | |
5969 | case KEY_dbmclose: | |
5970 | UNI(OP_DBMCLOSE); | |
5971 | ||
5972 | case KEY_dump: | |
a0d0e21e | 5973 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5974 | LOOPX(OP_DUMP); |
5975 | ||
5976 | case KEY_else: | |
5977 | PREBLOCK(ELSE); | |
5978 | ||
5979 | case KEY_elsif: | |
6154021b | 5980 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5981 | OPERATOR(ELSIF); |
5982 | ||
5983 | case KEY_eq: | |
5984 | Eop(OP_SEQ); | |
5985 | ||
a0d0e21e LW |
5986 | case KEY_exists: |
5987 | UNI(OP_EXISTS); | |
4e553d73 | 5988 | |
79072805 | 5989 | case KEY_exit: |
5db06880 NC |
5990 | if (PL_madskills) |
5991 | UNI(OP_INT); | |
79072805 LW |
5992 | UNI(OP_EXIT); |
5993 | ||
5994 | case KEY_eval: | |
29595ff2 | 5995 | s = SKIPSPACE1(s); |
3280af22 | 5996 | PL_expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 5997 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
5998 | |
5999 | case KEY_eof: | |
6000 | UNI(OP_EOF); | |
6001 | ||
6002 | case KEY_exp: | |
6003 | UNI(OP_EXP); | |
6004 | ||
6005 | case KEY_each: | |
6006 | UNI(OP_EACH); | |
6007 | ||
6008 | case KEY_exec: | |
a0d0e21e | 6009 | LOP(OP_EXEC,XREF); |
79072805 LW |
6010 | |
6011 | case KEY_endhostent: | |
6012 | FUN0(OP_EHOSTENT); | |
6013 | ||
6014 | case KEY_endnetent: | |
6015 | FUN0(OP_ENETENT); | |
6016 | ||
6017 | case KEY_endservent: | |
6018 | FUN0(OP_ESERVENT); | |
6019 | ||
6020 | case KEY_endprotoent: | |
6021 | FUN0(OP_EPROTOENT); | |
6022 | ||
6023 | case KEY_endpwent: | |
6024 | FUN0(OP_EPWENT); | |
6025 | ||
6026 | case KEY_endgrent: | |
6027 | FUN0(OP_EGRENT); | |
6028 | ||
6029 | case KEY_for: | |
6030 | case KEY_foreach: | |
6154021b | 6031 | pl_yylval.ival = CopLINE(PL_curcop); |
29595ff2 | 6032 | s = SKIPSPACE1(s); |
7e2040f0 | 6033 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 6034 | char *p = s; |
5db06880 NC |
6035 | #ifdef PERL_MAD |
6036 | int soff = s - SvPVX(PL_linestr); /* for skipspace realloc */ | |
6037 | #endif | |
6038 | ||
3280af22 | 6039 | if ((PL_bufend - p) >= 3 && |
55497cff | 6040 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
6041 | p += 2; | |
77ca0c92 LW |
6042 | else if ((PL_bufend - p) >= 4 && |
6043 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
6044 | p += 3; | |
29595ff2 | 6045 | p = PEEKSPACE(p); |
7e2040f0 | 6046 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
6047 | p = scan_ident(p, PL_bufend, |
6048 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
29595ff2 | 6049 | p = PEEKSPACE(p); |
77ca0c92 LW |
6050 | } |
6051 | if (*p != '$') | |
cea2e8a9 | 6052 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
5db06880 NC |
6053 | #ifdef PERL_MAD |
6054 | s = SvPVX(PL_linestr) + soff; | |
6055 | #endif | |
55497cff | 6056 | } |
79072805 LW |
6057 | OPERATOR(FOR); |
6058 | ||
6059 | case KEY_formline: | |
a0d0e21e | 6060 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
6061 | |
6062 | case KEY_fork: | |
6063 | FUN0(OP_FORK); | |
6064 | ||
6065 | case KEY_fcntl: | |
a0d0e21e | 6066 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
6067 | |
6068 | case KEY_fileno: | |
6069 | UNI(OP_FILENO); | |
6070 | ||
6071 | case KEY_flock: | |
a0d0e21e | 6072 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
6073 | |
6074 | case KEY_gt: | |
6075 | Rop(OP_SGT); | |
6076 | ||
6077 | case KEY_ge: | |
6078 | Rop(OP_SGE); | |
6079 | ||
6080 | case KEY_grep: | |
2c38e13d | 6081 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
6082 | |
6083 | case KEY_goto: | |
a0d0e21e | 6084 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6085 | LOOPX(OP_GOTO); |
6086 | ||
6087 | case KEY_gmtime: | |
6088 | UNI(OP_GMTIME); | |
6089 | ||
6090 | case KEY_getc: | |
6f33ba73 | 6091 | UNIDOR(OP_GETC); |
79072805 LW |
6092 | |
6093 | case KEY_getppid: | |
6094 | FUN0(OP_GETPPID); | |
6095 | ||
6096 | case KEY_getpgrp: | |
6097 | UNI(OP_GETPGRP); | |
6098 | ||
6099 | case KEY_getpriority: | |
a0d0e21e | 6100 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
6101 | |
6102 | case KEY_getprotobyname: | |
6103 | UNI(OP_GPBYNAME); | |
6104 | ||
6105 | case KEY_getprotobynumber: | |
a0d0e21e | 6106 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
6107 | |
6108 | case KEY_getprotoent: | |
6109 | FUN0(OP_GPROTOENT); | |
6110 | ||
6111 | case KEY_getpwent: | |
6112 | FUN0(OP_GPWENT); | |
6113 | ||
6114 | case KEY_getpwnam: | |
ff68c719 | 6115 | UNI(OP_GPWNAM); |
79072805 LW |
6116 | |
6117 | case KEY_getpwuid: | |
ff68c719 | 6118 | UNI(OP_GPWUID); |
79072805 LW |
6119 | |
6120 | case KEY_getpeername: | |
6121 | UNI(OP_GETPEERNAME); | |
6122 | ||
6123 | case KEY_gethostbyname: | |
6124 | UNI(OP_GHBYNAME); | |
6125 | ||
6126 | case KEY_gethostbyaddr: | |
a0d0e21e | 6127 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
6128 | |
6129 | case KEY_gethostent: | |
6130 | FUN0(OP_GHOSTENT); | |
6131 | ||
6132 | case KEY_getnetbyname: | |
6133 | UNI(OP_GNBYNAME); | |
6134 | ||
6135 | case KEY_getnetbyaddr: | |
a0d0e21e | 6136 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
6137 | |
6138 | case KEY_getnetent: | |
6139 | FUN0(OP_GNETENT); | |
6140 | ||
6141 | case KEY_getservbyname: | |
a0d0e21e | 6142 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
6143 | |
6144 | case KEY_getservbyport: | |
a0d0e21e | 6145 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
6146 | |
6147 | case KEY_getservent: | |
6148 | FUN0(OP_GSERVENT); | |
6149 | ||
6150 | case KEY_getsockname: | |
6151 | UNI(OP_GETSOCKNAME); | |
6152 | ||
6153 | case KEY_getsockopt: | |
a0d0e21e | 6154 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
6155 | |
6156 | case KEY_getgrent: | |
6157 | FUN0(OP_GGRENT); | |
6158 | ||
6159 | case KEY_getgrnam: | |
ff68c719 | 6160 | UNI(OP_GGRNAM); |
79072805 LW |
6161 | |
6162 | case KEY_getgrgid: | |
ff68c719 | 6163 | UNI(OP_GGRGID); |
79072805 LW |
6164 | |
6165 | case KEY_getlogin: | |
6166 | FUN0(OP_GETLOGIN); | |
6167 | ||
0d863452 | 6168 | case KEY_given: |
6154021b | 6169 | pl_yylval.ival = CopLINE(PL_curcop); |
0d863452 RH |
6170 | OPERATOR(GIVEN); |
6171 | ||
93a17b20 | 6172 | case KEY_glob: |
a0d0e21e | 6173 | LOP(OP_GLOB,XTERM); |
93a17b20 | 6174 | |
79072805 LW |
6175 | case KEY_hex: |
6176 | UNI(OP_HEX); | |
6177 | ||
6178 | case KEY_if: | |
6154021b | 6179 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6180 | OPERATOR(IF); |
6181 | ||
6182 | case KEY_index: | |
a0d0e21e | 6183 | LOP(OP_INDEX,XTERM); |
79072805 LW |
6184 | |
6185 | case KEY_int: | |
6186 | UNI(OP_INT); | |
6187 | ||
6188 | case KEY_ioctl: | |
a0d0e21e | 6189 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
6190 | |
6191 | case KEY_join: | |
a0d0e21e | 6192 | LOP(OP_JOIN,XTERM); |
79072805 LW |
6193 | |
6194 | case KEY_keys: | |
6195 | UNI(OP_KEYS); | |
6196 | ||
6197 | case KEY_kill: | |
a0d0e21e | 6198 | LOP(OP_KILL,XTERM); |
79072805 LW |
6199 | |
6200 | case KEY_last: | |
a0d0e21e | 6201 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 6202 | LOOPX(OP_LAST); |
4e553d73 | 6203 | |
79072805 LW |
6204 | case KEY_lc: |
6205 | UNI(OP_LC); | |
6206 | ||
6207 | case KEY_lcfirst: | |
6208 | UNI(OP_LCFIRST); | |
6209 | ||
6210 | case KEY_local: | |
6154021b | 6211 | pl_yylval.ival = 0; |
79072805 LW |
6212 | OPERATOR(LOCAL); |
6213 | ||
6214 | case KEY_length: | |
6215 | UNI(OP_LENGTH); | |
6216 | ||
6217 | case KEY_lt: | |
6218 | Rop(OP_SLT); | |
6219 | ||
6220 | case KEY_le: | |
6221 | Rop(OP_SLE); | |
6222 | ||
6223 | case KEY_localtime: | |
6224 | UNI(OP_LOCALTIME); | |
6225 | ||
6226 | case KEY_log: | |
6227 | UNI(OP_LOG); | |
6228 | ||
6229 | case KEY_link: | |
a0d0e21e | 6230 | LOP(OP_LINK,XTERM); |
79072805 LW |
6231 | |
6232 | case KEY_listen: | |
a0d0e21e | 6233 | LOP(OP_LISTEN,XTERM); |
79072805 | 6234 | |
c0329465 MB |
6235 | case KEY_lock: |
6236 | UNI(OP_LOCK); | |
6237 | ||
79072805 LW |
6238 | case KEY_lstat: |
6239 | UNI(OP_LSTAT); | |
6240 | ||
6241 | case KEY_m: | |
8782bef2 | 6242 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
6243 | TERM(sublex_start()); |
6244 | ||
a0d0e21e | 6245 | case KEY_map: |
2c38e13d | 6246 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 6247 | |
79072805 | 6248 | case KEY_mkdir: |
a0d0e21e | 6249 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
6250 | |
6251 | case KEY_msgctl: | |
a0d0e21e | 6252 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
6253 | |
6254 | case KEY_msgget: | |
a0d0e21e | 6255 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
6256 | |
6257 | case KEY_msgrcv: | |
a0d0e21e | 6258 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
6259 | |
6260 | case KEY_msgsnd: | |
a0d0e21e | 6261 | LOP(OP_MSGSND,XTERM); |
79072805 | 6262 | |
77ca0c92 | 6263 | case KEY_our: |
93a17b20 | 6264 | case KEY_my: |
952306ac | 6265 | case KEY_state: |
eac04b2e | 6266 | PL_in_my = (U16)tmp; |
29595ff2 | 6267 | s = SKIPSPACE1(s); |
7e2040f0 | 6268 | if (isIDFIRST_lazy_if(s,UTF)) { |
5db06880 NC |
6269 | #ifdef PERL_MAD |
6270 | char* start = s; | |
6271 | #endif | |
3280af22 | 6272 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
6273 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
6274 | goto really_sub; | |
def3634b | 6275 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 6276 | if (!PL_in_my_stash) { |
c750a3ec | 6277 | char tmpbuf[1024]; |
3280af22 | 6278 | PL_bufptr = s; |
d9fad198 | 6279 | my_snprintf(tmpbuf, sizeof(tmpbuf), "No such class %.1000s", PL_tokenbuf); |
c750a3ec MB |
6280 | yyerror(tmpbuf); |
6281 | } | |
5db06880 NC |
6282 | #ifdef PERL_MAD |
6283 | if (PL_madskills) { /* just add type to declarator token */ | |
cd81e915 NC |
6284 | sv_catsv(PL_thistoken, PL_nextwhite); |
6285 | PL_nextwhite = 0; | |
6286 | sv_catpvn(PL_thistoken, start, s - start); | |
5db06880 NC |
6287 | } |
6288 | #endif | |
c750a3ec | 6289 | } |
6154021b | 6290 | pl_yylval.ival = 1; |
55497cff | 6291 | OPERATOR(MY); |
93a17b20 | 6292 | |
79072805 | 6293 | case KEY_next: |
a0d0e21e | 6294 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6295 | LOOPX(OP_NEXT); |
6296 | ||
6297 | case KEY_ne: | |
6298 | Eop(OP_SNE); | |
6299 | ||
a0d0e21e | 6300 | case KEY_no: |
468aa647 | 6301 | s = tokenize_use(0, s); |
a0d0e21e LW |
6302 | OPERATOR(USE); |
6303 | ||
6304 | case KEY_not: | |
29595ff2 | 6305 | if (*s == '(' || (s = SKIPSPACE1(s), *s == '(')) |
2d2e263d LW |
6306 | FUN1(OP_NOT); |
6307 | else | |
6308 | OPERATOR(NOTOP); | |
a0d0e21e | 6309 | |
79072805 | 6310 | case KEY_open: |
29595ff2 | 6311 | s = SKIPSPACE1(s); |
7e2040f0 | 6312 | if (isIDFIRST_lazy_if(s,UTF)) { |
f54cb97a | 6313 | const char *t; |
c35e046a AL |
6314 | for (d = s; isALNUM_lazy_if(d,UTF);) |
6315 | d++; | |
6316 | for (t=d; isSPACE(*t);) | |
6317 | t++; | |
e2ab214b | 6318 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) |
66fbe8fb HS |
6319 | /* [perl #16184] */ |
6320 | && !(t[0] == '=' && t[1] == '>') | |
6321 | ) { | |
5f66b61c | 6322 | int parms_len = (int)(d-s); |
9014280d | 6323 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 6324 | "Precedence problem: open %.*s should be open(%.*s)", |
5f66b61c | 6325 | parms_len, s, parms_len, s); |
66fbe8fb | 6326 | } |
93a17b20 | 6327 | } |
a0d0e21e | 6328 | LOP(OP_OPEN,XTERM); |
79072805 | 6329 | |
463ee0b2 | 6330 | case KEY_or: |
6154021b | 6331 | pl_yylval.ival = OP_OR; |
463ee0b2 LW |
6332 | OPERATOR(OROP); |
6333 | ||
79072805 LW |
6334 | case KEY_ord: |
6335 | UNI(OP_ORD); | |
6336 | ||
6337 | case KEY_oct: | |
6338 | UNI(OP_OCT); | |
6339 | ||
6340 | case KEY_opendir: | |
a0d0e21e | 6341 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
6342 | |
6343 | case KEY_print: | |
3280af22 | 6344 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6345 | LOP(OP_PRINT,XREF); |
79072805 LW |
6346 | |
6347 | case KEY_printf: | |
3280af22 | 6348 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6349 | LOP(OP_PRTF,XREF); |
79072805 | 6350 | |
c07a80fd | 6351 | case KEY_prototype: |
6352 | UNI(OP_PROTOTYPE); | |
6353 | ||
79072805 | 6354 | case KEY_push: |
a0d0e21e | 6355 | LOP(OP_PUSH,XTERM); |
79072805 LW |
6356 | |
6357 | case KEY_pop: | |
6f33ba73 | 6358 | UNIDOR(OP_POP); |
79072805 | 6359 | |
a0d0e21e | 6360 | case KEY_pos: |
6f33ba73 | 6361 | UNIDOR(OP_POS); |
4e553d73 | 6362 | |
79072805 | 6363 | case KEY_pack: |
a0d0e21e | 6364 | LOP(OP_PACK,XTERM); |
79072805 LW |
6365 | |
6366 | case KEY_package: | |
a0d0e21e | 6367 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
6368 | OPERATOR(PACKAGE); |
6369 | ||
6370 | case KEY_pipe: | |
a0d0e21e | 6371 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
6372 | |
6373 | case KEY_q: | |
5db06880 | 6374 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6375 | if (!s) |
d4c19fe8 | 6376 | missingterm(NULL); |
6154021b | 6377 | pl_yylval.ival = OP_CONST; |
79072805 LW |
6378 | TERM(sublex_start()); |
6379 | ||
a0d0e21e LW |
6380 | case KEY_quotemeta: |
6381 | UNI(OP_QUOTEMETA); | |
6382 | ||
8990e307 | 6383 | case KEY_qw: |
5db06880 | 6384 | s = scan_str(s,!!PL_madskills,FALSE); |
8990e307 | 6385 | if (!s) |
d4c19fe8 | 6386 | missingterm(NULL); |
3480a8d2 | 6387 | PL_expect = XOPERATOR; |
8127e0e3 GS |
6388 | force_next(')'); |
6389 | if (SvCUR(PL_lex_stuff)) { | |
5f66b61c | 6390 | OP *words = NULL; |
8127e0e3 | 6391 | int warned = 0; |
3280af22 | 6392 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 6393 | while (len) { |
d4c19fe8 AL |
6394 | for (; isSPACE(*d) && len; --len, ++d) |
6395 | /**/; | |
8127e0e3 | 6396 | if (len) { |
d4c19fe8 | 6397 | SV *sv; |
f54cb97a | 6398 | const char *b = d; |
e476b1b5 | 6399 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
6400 | for (; !isSPACE(*d) && len; --len, ++d) { |
6401 | if (*d == ',') { | |
9014280d | 6402 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6403 | "Possible attempt to separate words with commas"); |
6404 | ++warned; | |
6405 | } | |
6406 | else if (*d == '#') { | |
9014280d | 6407 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6408 | "Possible attempt to put comments in qw() list"); |
6409 | ++warned; | |
6410 | } | |
6411 | } | |
6412 | } | |
6413 | else { | |
d4c19fe8 AL |
6414 | for (; !isSPACE(*d) && len; --len, ++d) |
6415 | /**/; | |
8127e0e3 | 6416 | } |
740cce10 | 6417 | sv = newSVpvn_utf8(b, d-b, DO_UTF8(PL_lex_stuff)); |
8127e0e3 | 6418 | words = append_elem(OP_LIST, words, |
7948272d | 6419 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 6420 | } |
6421 | } | |
8127e0e3 | 6422 | if (words) { |
cd81e915 | 6423 | start_force(PL_curforce); |
9ded7720 | 6424 | NEXTVAL_NEXTTOKE.opval = words; |
8127e0e3 GS |
6425 | force_next(THING); |
6426 | } | |
55497cff | 6427 | } |
37fd879b | 6428 | if (PL_lex_stuff) { |
8127e0e3 | 6429 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 6430 | PL_lex_stuff = NULL; |
37fd879b | 6431 | } |
3280af22 | 6432 | PL_expect = XTERM; |
8127e0e3 | 6433 | TOKEN('('); |
8990e307 | 6434 | |
79072805 | 6435 | case KEY_qq: |
5db06880 | 6436 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6437 | if (!s) |
d4c19fe8 | 6438 | missingterm(NULL); |
6154021b | 6439 | pl_yylval.ival = OP_STRINGIFY; |
3280af22 | 6440 | if (SvIVX(PL_lex_stuff) == '\'') |
45977657 | 6441 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
6442 | TERM(sublex_start()); |
6443 | ||
8782bef2 GB |
6444 | case KEY_qr: |
6445 | s = scan_pat(s,OP_QR); | |
6446 | TERM(sublex_start()); | |
6447 | ||
79072805 | 6448 | case KEY_qx: |
5db06880 | 6449 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6450 | if (!s) |
d4c19fe8 | 6451 | missingterm(NULL); |
9b201d7d | 6452 | readpipe_override(); |
79072805 LW |
6453 | TERM(sublex_start()); |
6454 | ||
6455 | case KEY_return: | |
6456 | OLDLOP(OP_RETURN); | |
6457 | ||
6458 | case KEY_require: | |
29595ff2 | 6459 | s = SKIPSPACE1(s); |
e759cc13 RGS |
6460 | if (isDIGIT(*s)) { |
6461 | s = force_version(s, FALSE); | |
a7cb1f99 | 6462 | } |
e759cc13 RGS |
6463 | else if (*s != 'v' || !isDIGIT(s[1]) |
6464 | || (s = force_version(s, TRUE), *s == 'v')) | |
6465 | { | |
a7cb1f99 GS |
6466 | *PL_tokenbuf = '\0'; |
6467 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 6468 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
da51bb9b | 6469 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), GV_ADD); |
a7cb1f99 GS |
6470 | else if (*s == '<') |
6471 | yyerror("<> should be quotes"); | |
6472 | } | |
a72a1c8b RGS |
6473 | if (orig_keyword == KEY_require) { |
6474 | orig_keyword = 0; | |
6154021b | 6475 | pl_yylval.ival = 1; |
a72a1c8b RGS |
6476 | } |
6477 | else | |
6154021b | 6478 | pl_yylval.ival = 0; |
a72a1c8b RGS |
6479 | PL_expect = XTERM; |
6480 | PL_bufptr = s; | |
6481 | PL_last_uni = PL_oldbufptr; | |
6482 | PL_last_lop_op = OP_REQUIRE; | |
6483 | s = skipspace(s); | |
6484 | return REPORT( (int)REQUIRE ); | |
79072805 LW |
6485 | |
6486 | case KEY_reset: | |
6487 | UNI(OP_RESET); | |
6488 | ||
6489 | case KEY_redo: | |
a0d0e21e | 6490 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6491 | LOOPX(OP_REDO); |
6492 | ||
6493 | case KEY_rename: | |
a0d0e21e | 6494 | LOP(OP_RENAME,XTERM); |
79072805 LW |
6495 | |
6496 | case KEY_rand: | |
6497 | UNI(OP_RAND); | |
6498 | ||
6499 | case KEY_rmdir: | |
6500 | UNI(OP_RMDIR); | |
6501 | ||
6502 | case KEY_rindex: | |
a0d0e21e | 6503 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
6504 | |
6505 | case KEY_read: | |
a0d0e21e | 6506 | LOP(OP_READ,XTERM); |
79072805 LW |
6507 | |
6508 | case KEY_readdir: | |
6509 | UNI(OP_READDIR); | |
6510 | ||
93a17b20 | 6511 | case KEY_readline: |
6f33ba73 | 6512 | UNIDOR(OP_READLINE); |
93a17b20 LW |
6513 | |
6514 | case KEY_readpipe: | |
0858480c | 6515 | UNIDOR(OP_BACKTICK); |
93a17b20 | 6516 | |
79072805 LW |
6517 | case KEY_rewinddir: |
6518 | UNI(OP_REWINDDIR); | |
6519 | ||
6520 | case KEY_recv: | |
a0d0e21e | 6521 | LOP(OP_RECV,XTERM); |
79072805 LW |
6522 | |
6523 | case KEY_reverse: | |
a0d0e21e | 6524 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
6525 | |
6526 | case KEY_readlink: | |
6f33ba73 | 6527 | UNIDOR(OP_READLINK); |
79072805 LW |
6528 | |
6529 | case KEY_ref: | |
6530 | UNI(OP_REF); | |
6531 | ||
6532 | case KEY_s: | |
6533 | s = scan_subst(s); | |
6154021b | 6534 | if (pl_yylval.opval) |
79072805 LW |
6535 | TERM(sublex_start()); |
6536 | else | |
6537 | TOKEN(1); /* force error */ | |
6538 | ||
0d863452 RH |
6539 | case KEY_say: |
6540 | checkcomma(s,PL_tokenbuf,"filehandle"); | |
6541 | LOP(OP_SAY,XREF); | |
6542 | ||
a0d0e21e LW |
6543 | case KEY_chomp: |
6544 | UNI(OP_CHOMP); | |
4e553d73 | 6545 | |
79072805 LW |
6546 | case KEY_scalar: |
6547 | UNI(OP_SCALAR); | |
6548 | ||
6549 | case KEY_select: | |
a0d0e21e | 6550 | LOP(OP_SELECT,XTERM); |
79072805 LW |
6551 | |
6552 | case KEY_seek: | |
a0d0e21e | 6553 | LOP(OP_SEEK,XTERM); |
79072805 LW |
6554 | |
6555 | case KEY_semctl: | |
a0d0e21e | 6556 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
6557 | |
6558 | case KEY_semget: | |
a0d0e21e | 6559 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
6560 | |
6561 | case KEY_semop: | |
a0d0e21e | 6562 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
6563 | |
6564 | case KEY_send: | |
a0d0e21e | 6565 | LOP(OP_SEND,XTERM); |
79072805 LW |
6566 | |
6567 | case KEY_setpgrp: | |
a0d0e21e | 6568 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
6569 | |
6570 | case KEY_setpriority: | |
a0d0e21e | 6571 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
6572 | |
6573 | case KEY_sethostent: | |
ff68c719 | 6574 | UNI(OP_SHOSTENT); |
79072805 LW |
6575 | |
6576 | case KEY_setnetent: | |
ff68c719 | 6577 | UNI(OP_SNETENT); |
79072805 LW |
6578 | |
6579 | case KEY_setservent: | |
ff68c719 | 6580 | UNI(OP_SSERVENT); |
79072805 LW |
6581 | |
6582 | case KEY_setprotoent: | |
ff68c719 | 6583 | UNI(OP_SPROTOENT); |
79072805 LW |
6584 | |
6585 | case KEY_setpwent: | |
6586 | FUN0(OP_SPWENT); | |
6587 | ||
6588 | case KEY_setgrent: | |
6589 | FUN0(OP_SGRENT); | |
6590 | ||
6591 | case KEY_seekdir: | |
a0d0e21e | 6592 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
6593 | |
6594 | case KEY_setsockopt: | |
a0d0e21e | 6595 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
6596 | |
6597 | case KEY_shift: | |
6f33ba73 | 6598 | UNIDOR(OP_SHIFT); |
79072805 LW |
6599 | |
6600 | case KEY_shmctl: | |
a0d0e21e | 6601 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
6602 | |
6603 | case KEY_shmget: | |
a0d0e21e | 6604 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
6605 | |
6606 | case KEY_shmread: | |
a0d0e21e | 6607 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
6608 | |
6609 | case KEY_shmwrite: | |
a0d0e21e | 6610 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
6611 | |
6612 | case KEY_shutdown: | |
a0d0e21e | 6613 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
6614 | |
6615 | case KEY_sin: | |
6616 | UNI(OP_SIN); | |
6617 | ||
6618 | case KEY_sleep: | |
6619 | UNI(OP_SLEEP); | |
6620 | ||
6621 | case KEY_socket: | |
a0d0e21e | 6622 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
6623 | |
6624 | case KEY_socketpair: | |
a0d0e21e | 6625 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
6626 | |
6627 | case KEY_sort: | |
3280af22 | 6628 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
29595ff2 | 6629 | s = SKIPSPACE1(s); |
79072805 | 6630 | if (*s == ';' || *s == ')') /* probably a close */ |
cea2e8a9 | 6631 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 6632 | PL_expect = XTERM; |
15f0808c | 6633 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 6634 | LOP(OP_SORT,XREF); |
79072805 LW |
6635 | |
6636 | case KEY_split: | |
a0d0e21e | 6637 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
6638 | |
6639 | case KEY_sprintf: | |
a0d0e21e | 6640 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
6641 | |
6642 | case KEY_splice: | |
a0d0e21e | 6643 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
6644 | |
6645 | case KEY_sqrt: | |
6646 | UNI(OP_SQRT); | |
6647 | ||
6648 | case KEY_srand: | |
6649 | UNI(OP_SRAND); | |
6650 | ||
6651 | case KEY_stat: | |
6652 | UNI(OP_STAT); | |
6653 | ||
6654 | case KEY_study: | |
79072805 LW |
6655 | UNI(OP_STUDY); |
6656 | ||
6657 | case KEY_substr: | |
a0d0e21e | 6658 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
6659 | |
6660 | case KEY_format: | |
6661 | case KEY_sub: | |
93a17b20 | 6662 | really_sub: |
09bef843 | 6663 | { |
3280af22 | 6664 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 6665 | SSize_t tboffset = 0; |
09bef843 | 6666 | expectation attrful; |
28cc6278 | 6667 | bool have_name, have_proto; |
f54cb97a | 6668 | const int key = tmp; |
09bef843 | 6669 | |
5db06880 NC |
6670 | #ifdef PERL_MAD |
6671 | SV *tmpwhite = 0; | |
6672 | ||
cd81e915 | 6673 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
5db06880 | 6674 | SV *subtoken = newSVpvn(tstart, s - tstart); |
cd81e915 | 6675 | PL_thistoken = 0; |
5db06880 NC |
6676 | |
6677 | d = s; | |
6678 | s = SKIPSPACE2(s,tmpwhite); | |
6679 | #else | |
09bef843 | 6680 | s = skipspace(s); |
5db06880 | 6681 | #endif |
09bef843 | 6682 | |
7e2040f0 | 6683 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
6684 | (*s == ':' && s[1] == ':')) |
6685 | { | |
5db06880 | 6686 | #ifdef PERL_MAD |
4f61fd4b | 6687 | SV *nametoke = NULL; |
5db06880 NC |
6688 | #endif |
6689 | ||
09bef843 SB |
6690 | PL_expect = XBLOCK; |
6691 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
6692 | /* remember buffer pos'n for later force_word */ |
6693 | tboffset = s - PL_oldbufptr; | |
09bef843 | 6694 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5db06880 NC |
6695 | #ifdef PERL_MAD |
6696 | if (PL_madskills) | |
6697 | nametoke = newSVpvn(s, d - s); | |
6698 | #endif | |
6502358f NC |
6699 | if (memchr(tmpbuf, ':', len)) |
6700 | sv_setpvn(PL_subname, tmpbuf, len); | |
09bef843 SB |
6701 | else { |
6702 | sv_setsv(PL_subname,PL_curstname); | |
396482e1 | 6703 | sv_catpvs(PL_subname,"::"); |
09bef843 SB |
6704 | sv_catpvn(PL_subname,tmpbuf,len); |
6705 | } | |
09bef843 | 6706 | have_name = TRUE; |
5db06880 NC |
6707 | |
6708 | #ifdef PERL_MAD | |
6709 | ||
6710 | start_force(0); | |
6711 | CURMAD('X', nametoke); | |
6712 | CURMAD('_', tmpwhite); | |
6713 | (void) force_word(PL_oldbufptr + tboffset, WORD, | |
6714 | FALSE, TRUE, TRUE); | |
6715 | ||
6716 | s = SKIPSPACE2(d,tmpwhite); | |
6717 | #else | |
6718 | s = skipspace(d); | |
6719 | #endif | |
09bef843 | 6720 | } |
463ee0b2 | 6721 | else { |
09bef843 SB |
6722 | if (key == KEY_my) |
6723 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
6724 | PL_expect = XTERMBLOCK; | |
6725 | attrful = XATTRTERM; | |
76f68e9b | 6726 | sv_setpvs(PL_subname,"?"); |
09bef843 | 6727 | have_name = FALSE; |
463ee0b2 | 6728 | } |
4633a7c4 | 6729 | |
09bef843 SB |
6730 | if (key == KEY_format) { |
6731 | if (*s == '=') | |
6732 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5db06880 | 6733 | #ifdef PERL_MAD |
cd81e915 | 6734 | PL_thistoken = subtoken; |
5db06880 NC |
6735 | s = d; |
6736 | #else | |
09bef843 | 6737 | if (have_name) |
b1b65b59 JH |
6738 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6739 | FALSE, TRUE, TRUE); | |
5db06880 | 6740 | #endif |
09bef843 SB |
6741 | OPERATOR(FORMAT); |
6742 | } | |
79072805 | 6743 | |
09bef843 SB |
6744 | /* Look for a prototype */ |
6745 | if (*s == '(') { | |
d9f2850e RGS |
6746 | char *p; |
6747 | bool bad_proto = FALSE; | |
9e8d7757 RB |
6748 | bool in_brackets = FALSE; |
6749 | char greedy_proto = ' '; | |
6750 | bool proto_after_greedy_proto = FALSE; | |
6751 | bool must_be_last = FALSE; | |
6752 | bool underscore = FALSE; | |
aef2a98a | 6753 | bool seen_underscore = FALSE; |
d9f2850e | 6754 | const bool warnsyntax = ckWARN(WARN_SYNTAX); |
09bef843 | 6755 | |
5db06880 | 6756 | s = scan_str(s,!!PL_madskills,FALSE); |
37fd879b | 6757 | if (!s) |
09bef843 | 6758 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 6759 | /* strip spaces and check for bad characters */ |
09bef843 SB |
6760 | d = SvPVX(PL_lex_stuff); |
6761 | tmp = 0; | |
d9f2850e RGS |
6762 | for (p = d; *p; ++p) { |
6763 | if (!isSPACE(*p)) { | |
6764 | d[tmp++] = *p; | |
9e8d7757 RB |
6765 | |
6766 | if (warnsyntax) { | |
6767 | if (must_be_last) | |
6768 | proto_after_greedy_proto = TRUE; | |
6769 | if (!strchr("$@%*;[]&\\_", *p)) { | |
6770 | bad_proto = TRUE; | |
6771 | } | |
6772 | else { | |
6773 | if ( underscore ) { | |
6774 | if ( *p != ';' ) | |
6775 | bad_proto = TRUE; | |
6776 | underscore = FALSE; | |
6777 | } | |
6778 | if ( *p == '[' ) { | |
6779 | in_brackets = TRUE; | |
6780 | } | |
6781 | else if ( *p == ']' ) { | |
6782 | in_brackets = FALSE; | |
6783 | } | |
6784 | else if ( (*p == '@' || *p == '%') && | |
6785 | ( tmp < 2 || d[tmp-2] != '\\' ) && | |
6786 | !in_brackets ) { | |
6787 | must_be_last = TRUE; | |
6788 | greedy_proto = *p; | |
6789 | } | |
6790 | else if ( *p == '_' ) { | |
aef2a98a | 6791 | underscore = seen_underscore = TRUE; |
9e8d7757 RB |
6792 | } |
6793 | } | |
6794 | } | |
d37a9538 | 6795 | } |
09bef843 | 6796 | } |
d9f2850e | 6797 | d[tmp] = '\0'; |
9e8d7757 RB |
6798 | if (proto_after_greedy_proto) |
6799 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
6800 | "Prototype after '%c' for %"SVf" : %s", | |
6801 | greedy_proto, SVfARG(PL_subname), d); | |
d9f2850e RGS |
6802 | if (bad_proto) |
6803 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
aef2a98a RGS |
6804 | "Illegal character %sin prototype for %"SVf" : %s", |
6805 | seen_underscore ? "after '_' " : "", | |
be2597df | 6806 | SVfARG(PL_subname), d); |
b162af07 | 6807 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 6808 | have_proto = TRUE; |
68dc0745 | 6809 | |
5db06880 NC |
6810 | #ifdef PERL_MAD |
6811 | start_force(0); | |
cd81e915 | 6812 | CURMAD('q', PL_thisopen); |
5db06880 | 6813 | CURMAD('_', tmpwhite); |
cd81e915 NC |
6814 | CURMAD('=', PL_thisstuff); |
6815 | CURMAD('Q', PL_thisclose); | |
5db06880 NC |
6816 | NEXTVAL_NEXTTOKE.opval = |
6817 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
1a9a51d4 | 6818 | PL_lex_stuff = NULL; |
5db06880 NC |
6819 | force_next(THING); |
6820 | ||
6821 | s = SKIPSPACE2(s,tmpwhite); | |
6822 | #else | |
09bef843 | 6823 | s = skipspace(s); |
5db06880 | 6824 | #endif |
4633a7c4 | 6825 | } |
09bef843 SB |
6826 | else |
6827 | have_proto = FALSE; | |
6828 | ||
6829 | if (*s == ':' && s[1] != ':') | |
6830 | PL_expect = attrful; | |
8e742a20 MHM |
6831 | else if (*s != '{' && key == KEY_sub) { |
6832 | if (!have_name) | |
6833 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
6834 | else if (*s != ';') | |
be2597df | 6835 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, SVfARG(PL_subname)); |
8e742a20 | 6836 | } |
09bef843 | 6837 | |
5db06880 NC |
6838 | #ifdef PERL_MAD |
6839 | start_force(0); | |
6840 | if (tmpwhite) { | |
6841 | if (PL_madskills) | |
6b29d1f5 | 6842 | curmad('^', newSVpvs("")); |
5db06880 NC |
6843 | CURMAD('_', tmpwhite); |
6844 | } | |
6845 | force_next(0); | |
6846 | ||
cd81e915 | 6847 | PL_thistoken = subtoken; |
5db06880 | 6848 | #else |
09bef843 | 6849 | if (have_proto) { |
9ded7720 | 6850 | NEXTVAL_NEXTTOKE.opval = |
b1b65b59 | 6851 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); |
a0714e2c | 6852 | PL_lex_stuff = NULL; |
09bef843 | 6853 | force_next(THING); |
68dc0745 | 6854 | } |
5db06880 | 6855 | #endif |
09bef843 | 6856 | if (!have_name) { |
49a54bbe NC |
6857 | if (PL_curstash) |
6858 | sv_setpvs(PL_subname, "__ANON__"); | |
6859 | else | |
6860 | sv_setpvs(PL_subname, "__ANON__::__ANON__"); | |
09bef843 | 6861 | TOKEN(ANONSUB); |
4633a7c4 | 6862 | } |
5db06880 | 6863 | #ifndef PERL_MAD |
b1b65b59 JH |
6864 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6865 | FALSE, TRUE, TRUE); | |
5db06880 | 6866 | #endif |
09bef843 SB |
6867 | if (key == KEY_my) |
6868 | TOKEN(MYSUB); | |
6869 | TOKEN(SUB); | |
4633a7c4 | 6870 | } |
79072805 LW |
6871 | |
6872 | case KEY_system: | |
a0d0e21e | 6873 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
6874 | |
6875 | case KEY_symlink: | |
a0d0e21e | 6876 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
6877 | |
6878 | case KEY_syscall: | |
a0d0e21e | 6879 | LOP(OP_SYSCALL,XTERM); |
79072805 | 6880 | |
c07a80fd | 6881 | case KEY_sysopen: |
6882 | LOP(OP_SYSOPEN,XTERM); | |
6883 | ||
137443ea | 6884 | case KEY_sysseek: |
6885 | LOP(OP_SYSSEEK,XTERM); | |
6886 | ||
79072805 | 6887 | case KEY_sysread: |
a0d0e21e | 6888 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
6889 | |
6890 | case KEY_syswrite: | |
a0d0e21e | 6891 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
6892 | |
6893 | case KEY_tr: | |
6894 | s = scan_trans(s); | |
6895 | TERM(sublex_start()); | |
6896 | ||
6897 | case KEY_tell: | |
6898 | UNI(OP_TELL); | |
6899 | ||
6900 | case KEY_telldir: | |
6901 | UNI(OP_TELLDIR); | |
6902 | ||
463ee0b2 | 6903 | case KEY_tie: |
a0d0e21e | 6904 | LOP(OP_TIE,XTERM); |
463ee0b2 | 6905 | |
c07a80fd | 6906 | case KEY_tied: |
6907 | UNI(OP_TIED); | |
6908 | ||
79072805 LW |
6909 | case KEY_time: |
6910 | FUN0(OP_TIME); | |
6911 | ||
6912 | case KEY_times: | |
6913 | FUN0(OP_TMS); | |
6914 | ||
6915 | case KEY_truncate: | |
a0d0e21e | 6916 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
6917 | |
6918 | case KEY_uc: | |
6919 | UNI(OP_UC); | |
6920 | ||
6921 | case KEY_ucfirst: | |
6922 | UNI(OP_UCFIRST); | |
6923 | ||
463ee0b2 LW |
6924 | case KEY_untie: |
6925 | UNI(OP_UNTIE); | |
6926 | ||
79072805 | 6927 | case KEY_until: |
6154021b | 6928 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6929 | OPERATOR(UNTIL); |
6930 | ||
6931 | case KEY_unless: | |
6154021b | 6932 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6933 | OPERATOR(UNLESS); |
6934 | ||
6935 | case KEY_unlink: | |
a0d0e21e | 6936 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
6937 | |
6938 | case KEY_undef: | |
6f33ba73 | 6939 | UNIDOR(OP_UNDEF); |
79072805 LW |
6940 | |
6941 | case KEY_unpack: | |
a0d0e21e | 6942 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
6943 | |
6944 | case KEY_utime: | |
a0d0e21e | 6945 | LOP(OP_UTIME,XTERM); |
79072805 LW |
6946 | |
6947 | case KEY_umask: | |
6f33ba73 | 6948 | UNIDOR(OP_UMASK); |
79072805 LW |
6949 | |
6950 | case KEY_unshift: | |
a0d0e21e LW |
6951 | LOP(OP_UNSHIFT,XTERM); |
6952 | ||
6953 | case KEY_use: | |
468aa647 | 6954 | s = tokenize_use(1, s); |
a0d0e21e | 6955 | OPERATOR(USE); |
79072805 LW |
6956 | |
6957 | case KEY_values: | |
6958 | UNI(OP_VALUES); | |
6959 | ||
6960 | case KEY_vec: | |
a0d0e21e | 6961 | LOP(OP_VEC,XTERM); |
79072805 | 6962 | |
0d863452 | 6963 | case KEY_when: |
6154021b | 6964 | pl_yylval.ival = CopLINE(PL_curcop); |
0d863452 RH |
6965 | OPERATOR(WHEN); |
6966 | ||
79072805 | 6967 | case KEY_while: |
6154021b | 6968 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6969 | OPERATOR(WHILE); |
6970 | ||
6971 | case KEY_warn: | |
3280af22 | 6972 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 6973 | LOP(OP_WARN,XTERM); |
79072805 LW |
6974 | |
6975 | case KEY_wait: | |
6976 | FUN0(OP_WAIT); | |
6977 | ||
6978 | case KEY_waitpid: | |
a0d0e21e | 6979 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
6980 | |
6981 | case KEY_wantarray: | |
6982 | FUN0(OP_WANTARRAY); | |
6983 | ||
6984 | case KEY_write: | |
9d116dd7 JH |
6985 | #ifdef EBCDIC |
6986 | { | |
df3728a2 JH |
6987 | char ctl_l[2]; |
6988 | ctl_l[0] = toCTRL('L'); | |
6989 | ctl_l[1] = '\0'; | |
fafc274c | 6990 | gv_fetchpvn_flags(ctl_l, 1, GV_ADD|GV_NOTQUAL, SVt_PV); |
9d116dd7 JH |
6991 | } |
6992 | #else | |
fafc274c NC |
6993 | /* Make sure $^L is defined */ |
6994 | gv_fetchpvs("\f", GV_ADD|GV_NOTQUAL, SVt_PV); | |
9d116dd7 | 6995 | #endif |
79072805 LW |
6996 | UNI(OP_ENTERWRITE); |
6997 | ||
6998 | case KEY_x: | |
3280af22 | 6999 | if (PL_expect == XOPERATOR) |
79072805 LW |
7000 | Mop(OP_REPEAT); |
7001 | check_uni(); | |
7002 | goto just_a_word; | |
7003 | ||
a0d0e21e | 7004 | case KEY_xor: |
6154021b | 7005 | pl_yylval.ival = OP_XOR; |
a0d0e21e LW |
7006 | OPERATOR(OROP); |
7007 | ||
79072805 LW |
7008 | case KEY_y: |
7009 | s = scan_trans(s); | |
7010 | TERM(sublex_start()); | |
7011 | } | |
49dc05e3 | 7012 | }} |
79072805 | 7013 | } |
bf4acbe4 GS |
7014 | #ifdef __SC__ |
7015 | #pragma segment Main | |
7016 | #endif | |
79072805 | 7017 | |
e930465f JH |
7018 | static int |
7019 | S_pending_ident(pTHX) | |
8eceec63 | 7020 | { |
97aff369 | 7021 | dVAR; |
8eceec63 | 7022 | register char *d; |
bbd11bfc | 7023 | PADOFFSET tmp = 0; |
8eceec63 SC |
7024 | /* pit holds the identifier we read and pending_ident is reset */ |
7025 | char pit = PL_pending_ident; | |
9bde8eb0 NC |
7026 | const STRLEN tokenbuf_len = strlen(PL_tokenbuf); |
7027 | /* All routes through this function want to know if there is a colon. */ | |
c099d646 | 7028 | const char *const has_colon = (const char*) memchr (PL_tokenbuf, ':', tokenbuf_len); |
8eceec63 SC |
7029 | PL_pending_ident = 0; |
7030 | ||
cd81e915 | 7031 | /* PL_realtokenstart = realtokenend = PL_bufptr - SvPVX(PL_linestr); */ |
8eceec63 | 7032 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 7033 | "### Pending identifier '%s'\n", PL_tokenbuf); }); |
8eceec63 SC |
7034 | |
7035 | /* if we're in a my(), we can't allow dynamics here. | |
7036 | $foo'bar has already been turned into $foo::bar, so | |
7037 | just check for colons. | |
7038 | ||
7039 | if it's a legal name, the OP is a PADANY. | |
7040 | */ | |
7041 | if (PL_in_my) { | |
7042 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
9bde8eb0 | 7043 | if (has_colon) |
8eceec63 SC |
7044 | yyerror(Perl_form(aTHX_ "No package name allowed for " |
7045 | "variable %s in \"our\"", | |
7046 | PL_tokenbuf)); | |
dd2155a4 | 7047 | tmp = allocmy(PL_tokenbuf); |
8eceec63 SC |
7048 | } |
7049 | else { | |
9bde8eb0 | 7050 | if (has_colon) |
952306ac RGS |
7051 | yyerror(Perl_form(aTHX_ PL_no_myglob, |
7052 | PL_in_my == KEY_my ? "my" : "state", PL_tokenbuf)); | |
8eceec63 | 7053 | |
6154021b RGS |
7054 | pl_yylval.opval = newOP(OP_PADANY, 0); |
7055 | pl_yylval.opval->op_targ = allocmy(PL_tokenbuf); | |
8eceec63 SC |
7056 | return PRIVATEREF; |
7057 | } | |
7058 | } | |
7059 | ||
7060 | /* | |
7061 | build the ops for accesses to a my() variable. | |
7062 | ||
7063 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
7064 | then used in a comparison. This catches most, but not | |
7065 | all cases. For instance, it catches | |
7066 | sort { my($a); $a <=> $b } | |
7067 | but not | |
7068 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
7069 | (although why you'd do that is anyone's guess). | |
7070 | */ | |
7071 | ||
9bde8eb0 | 7072 | if (!has_colon) { |
8716503d DM |
7073 | if (!PL_in_my) |
7074 | tmp = pad_findmy(PL_tokenbuf); | |
7075 | if (tmp != NOT_IN_PAD) { | |
8eceec63 | 7076 | /* might be an "our" variable" */ |
00b1698f | 7077 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
8eceec63 | 7078 | /* build ops for a bareword */ |
b64e5050 AL |
7079 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
7080 | HEK * const stashname = HvNAME_HEK(stash); | |
7081 | SV * const sym = newSVhek(stashname); | |
396482e1 | 7082 | sv_catpvs(sym, "::"); |
9bde8eb0 | 7083 | sv_catpvn(sym, PL_tokenbuf+1, tokenbuf_len - 1); |
6154021b RGS |
7084 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); |
7085 | pl_yylval.opval->op_private = OPpCONST_ENTERED; | |
7a5fd60d | 7086 | gv_fetchsv(sym, |
8eceec63 SC |
7087 | (PL_in_eval |
7088 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 7089 | : GV_ADDMULTI |
8eceec63 SC |
7090 | ), |
7091 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
7092 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
7093 | : SVt_PVHV)); | |
7094 | return WORD; | |
7095 | } | |
7096 | ||
7097 | /* if it's a sort block and they're naming $a or $b */ | |
7098 | if (PL_last_lop_op == OP_SORT && | |
7099 | PL_tokenbuf[0] == '$' && | |
7100 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
7101 | && !PL_tokenbuf[2]) | |
7102 | { | |
7103 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
7104 | d < PL_bufend && *d != '\n'; | |
7105 | d++) | |
7106 | { | |
7107 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
7108 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
7109 | PL_tokenbuf); | |
7110 | } | |
7111 | } | |
7112 | } | |
7113 | ||
6154021b RGS |
7114 | pl_yylval.opval = newOP(OP_PADANY, 0); |
7115 | pl_yylval.opval->op_targ = tmp; | |
8eceec63 SC |
7116 | return PRIVATEREF; |
7117 | } | |
7118 | } | |
7119 | ||
7120 | /* | |
7121 | Whine if they've said @foo in a doublequoted string, | |
7122 | and @foo isn't a variable we can find in the symbol | |
7123 | table. | |
7124 | */ | |
7125 | if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
9bde8eb0 NC |
7126 | GV *const gv = gv_fetchpvn_flags(PL_tokenbuf + 1, tokenbuf_len - 1, 0, |
7127 | SVt_PVAV); | |
8eceec63 | 7128 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
e879d94f RGS |
7129 | && ckWARN(WARN_AMBIGUOUS) |
7130 | /* DO NOT warn for @- and @+ */ | |
7131 | && !( PL_tokenbuf[2] == '\0' && | |
7132 | ( PL_tokenbuf[1] == '-' || PL_tokenbuf[1] == '+' )) | |
7133 | ) | |
8eceec63 SC |
7134 | { |
7135 | /* Downgraded from fatal to warning 20000522 mjd */ | |
9014280d | 7136 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
8eceec63 SC |
7137 | "Possible unintended interpolation of %s in string", |
7138 | PL_tokenbuf); | |
7139 | } | |
7140 | } | |
7141 | ||
7142 | /* build ops for a bareword */ | |
6154021b | 7143 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpvn(PL_tokenbuf + 1, |
9bde8eb0 | 7144 | tokenbuf_len - 1)); |
6154021b | 7145 | pl_yylval.opval->op_private = OPpCONST_ENTERED; |
9bde8eb0 NC |
7146 | gv_fetchpvn_flags( |
7147 | PL_tokenbuf + 1, tokenbuf_len - 1, | |
d6069db2 RGS |
7148 | /* If the identifier refers to a stash, don't autovivify it. |
7149 | * Change 24660 had the side effect of causing symbol table | |
7150 | * hashes to always be defined, even if they were freshly | |
7151 | * created and the only reference in the entire program was | |
7152 | * the single statement with the defined %foo::bar:: test. | |
7153 | * It appears that all code in the wild doing this actually | |
7154 | * wants to know whether sub-packages have been loaded, so | |
7155 | * by avoiding auto-vivifying symbol tables, we ensure that | |
7156 | * defined %foo::bar:: continues to be false, and the existing | |
7157 | * tests still give the expected answers, even though what | |
7158 | * they're actually testing has now changed subtly. | |
7159 | */ | |
9bde8eb0 NC |
7160 | (*PL_tokenbuf == '%' |
7161 | && *(d = PL_tokenbuf + tokenbuf_len - 1) == ':' | |
7162 | && d[-1] == ':' | |
d6069db2 RGS |
7163 | ? 0 |
7164 | : PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD), | |
adc51b97 RGS |
7165 | ((PL_tokenbuf[0] == '$') ? SVt_PV |
7166 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
7167 | : SVt_PVHV)); | |
8eceec63 SC |
7168 | return WORD; |
7169 | } | |
7170 | ||
4c3bbe0f MHM |
7171 | /* |
7172 | * The following code was generated by perl_keyword.pl. | |
7173 | */ | |
e2e1dd5a | 7174 | |
79072805 | 7175 | I32 |
5458a98a | 7176 | Perl_keyword (pTHX_ const char *name, I32 len, bool all_keywords) |
4c3bbe0f | 7177 | { |
952306ac | 7178 | dVAR; |
7918f24d NC |
7179 | |
7180 | PERL_ARGS_ASSERT_KEYWORD; | |
7181 | ||
4c3bbe0f MHM |
7182 | switch (len) |
7183 | { | |
7184 | case 1: /* 5 tokens of length 1 */ | |
7185 | switch (name[0]) | |
e2e1dd5a | 7186 | { |
4c3bbe0f MHM |
7187 | case 'm': |
7188 | { /* m */ | |
7189 | return KEY_m; | |
7190 | } | |
7191 | ||
4c3bbe0f MHM |
7192 | case 'q': |
7193 | { /* q */ | |
7194 | return KEY_q; | |
7195 | } | |
7196 | ||
4c3bbe0f MHM |
7197 | case 's': |
7198 | { /* s */ | |
7199 | return KEY_s; | |
7200 | } | |
7201 | ||
4c3bbe0f MHM |
7202 | case 'x': |
7203 | { /* x */ | |
7204 | return -KEY_x; | |
7205 | } | |
7206 | ||
4c3bbe0f MHM |
7207 | case 'y': |
7208 | { /* y */ | |
7209 | return KEY_y; | |
7210 | } | |
7211 | ||
4c3bbe0f MHM |
7212 | default: |
7213 | goto unknown; | |
e2e1dd5a | 7214 | } |
4c3bbe0f MHM |
7215 | |
7216 | case 2: /* 18 tokens of length 2 */ | |
7217 | switch (name[0]) | |
e2e1dd5a | 7218 | { |
4c3bbe0f MHM |
7219 | case 'd': |
7220 | if (name[1] == 'o') | |
7221 | { /* do */ | |
7222 | return KEY_do; | |
7223 | } | |
7224 | ||
7225 | goto unknown; | |
7226 | ||
7227 | case 'e': | |
7228 | if (name[1] == 'q') | |
7229 | { /* eq */ | |
7230 | return -KEY_eq; | |
7231 | } | |
7232 | ||
7233 | goto unknown; | |
7234 | ||
7235 | case 'g': | |
7236 | switch (name[1]) | |
7237 | { | |
7238 | case 'e': | |
7239 | { /* ge */ | |
7240 | return -KEY_ge; | |
7241 | } | |
7242 | ||
4c3bbe0f MHM |
7243 | case 't': |
7244 | { /* gt */ | |
7245 | return -KEY_gt; | |
7246 | } | |
7247 | ||
4c3bbe0f MHM |
7248 | default: |
7249 | goto unknown; | |
7250 | } | |
7251 | ||
7252 | case 'i': | |
7253 | if (name[1] == 'f') | |
7254 | { /* if */ | |
7255 | return KEY_if; | |
7256 | } | |
7257 | ||
7258 | goto unknown; | |
7259 | ||
7260 | case 'l': | |
7261 | switch (name[1]) | |
7262 | { | |
7263 | case 'c': | |
7264 | { /* lc */ | |
7265 | return -KEY_lc; | |
7266 | } | |
7267 | ||
4c3bbe0f MHM |
7268 | case 'e': |
7269 | { /* le */ | |
7270 | return -KEY_le; | |
7271 | } | |
7272 | ||
4c3bbe0f MHM |
7273 | case 't': |
7274 | { /* lt */ | |
7275 | return -KEY_lt; | |
7276 | } | |
7277 | ||
4c3bbe0f MHM |
7278 | default: |
7279 | goto unknown; | |
7280 | } | |
7281 | ||
7282 | case 'm': | |
7283 | if (name[1] == 'y') | |
7284 | { /* my */ | |
7285 | return KEY_my; | |
7286 | } | |
7287 | ||
7288 | goto unknown; | |
7289 | ||
7290 | case 'n': | |
7291 | switch (name[1]) | |
7292 | { | |
7293 | case 'e': | |
7294 | { /* ne */ | |
7295 | return -KEY_ne; | |
7296 | } | |
7297 | ||
4c3bbe0f MHM |
7298 | case 'o': |
7299 | { /* no */ | |
7300 | return KEY_no; | |
7301 | } | |
7302 | ||
4c3bbe0f MHM |
7303 | default: |
7304 | goto unknown; | |
7305 | } | |
7306 | ||
7307 | case 'o': | |
7308 | if (name[1] == 'r') | |
7309 | { /* or */ | |
7310 | return -KEY_or; | |
7311 | } | |
7312 | ||
7313 | goto unknown; | |
7314 | ||
7315 | case 'q': | |
7316 | switch (name[1]) | |
7317 | { | |
7318 | case 'q': | |
7319 | { /* qq */ | |
7320 | return KEY_qq; | |
7321 | } | |
7322 | ||
4c3bbe0f MHM |
7323 | case 'r': |
7324 | { /* qr */ | |
7325 | return KEY_qr; | |
7326 | } | |
7327 | ||
4c3bbe0f MHM |
7328 | case 'w': |
7329 | { /* qw */ | |
7330 | return KEY_qw; | |
7331 | } | |
7332 | ||
4c3bbe0f MHM |
7333 | case 'x': |
7334 | { /* qx */ | |
7335 | return KEY_qx; | |
7336 | } | |
7337 | ||
4c3bbe0f MHM |
7338 | default: |
7339 | goto unknown; | |
7340 | } | |
7341 | ||
7342 | case 't': | |
7343 | if (name[1] == 'r') | |
7344 | { /* tr */ | |
7345 | return KEY_tr; | |
7346 | } | |
7347 | ||
7348 | goto unknown; | |
7349 | ||
7350 | case 'u': | |
7351 | if (name[1] == 'c') | |
7352 | { /* uc */ | |
7353 | return -KEY_uc; | |
7354 | } | |
7355 | ||
7356 | goto unknown; | |
7357 | ||
7358 | default: | |
7359 | goto unknown; | |
e2e1dd5a | 7360 | } |
4c3bbe0f | 7361 | |
0d863452 | 7362 | case 3: /* 29 tokens of length 3 */ |
4c3bbe0f | 7363 | switch (name[0]) |
e2e1dd5a | 7364 | { |
4c3bbe0f MHM |
7365 | case 'E': |
7366 | if (name[1] == 'N' && | |
7367 | name[2] == 'D') | |
7368 | { /* END */ | |
7369 | return KEY_END; | |
7370 | } | |
7371 | ||
7372 | goto unknown; | |
7373 | ||
7374 | case 'a': | |
7375 | switch (name[1]) | |
7376 | { | |
7377 | case 'b': | |
7378 | if (name[2] == 's') | |
7379 | { /* abs */ | |
7380 | return -KEY_abs; | |
7381 | } | |
7382 | ||
7383 | goto unknown; | |
7384 | ||
7385 | case 'n': | |
7386 | if (name[2] == 'd') | |
7387 | { /* and */ | |
7388 | return -KEY_and; | |
7389 | } | |
7390 | ||
7391 | goto unknown; | |
7392 | ||
7393 | default: | |
7394 | goto unknown; | |
7395 | } | |
7396 | ||
7397 | case 'c': | |
7398 | switch (name[1]) | |
7399 | { | |
7400 | case 'h': | |
7401 | if (name[2] == 'r') | |
7402 | { /* chr */ | |
7403 | return -KEY_chr; | |
7404 | } | |
7405 | ||
7406 | goto unknown; | |
7407 | ||
7408 | case 'm': | |
7409 | if (name[2] == 'p') | |
7410 | { /* cmp */ | |
7411 | return -KEY_cmp; | |
7412 | } | |
7413 | ||
7414 | goto unknown; | |
7415 | ||
7416 | case 'o': | |
7417 | if (name[2] == 's') | |
7418 | { /* cos */ | |
7419 | return -KEY_cos; | |
7420 | } | |
7421 | ||
7422 | goto unknown; | |
7423 | ||
7424 | default: | |
7425 | goto unknown; | |
7426 | } | |
7427 | ||
7428 | case 'd': | |
7429 | if (name[1] == 'i' && | |
7430 | name[2] == 'e') | |
7431 | { /* die */ | |
7432 | return -KEY_die; | |
7433 | } | |
7434 | ||
7435 | goto unknown; | |
7436 | ||
7437 | case 'e': | |
7438 | switch (name[1]) | |
7439 | { | |
7440 | case 'o': | |
7441 | if (name[2] == 'f') | |
7442 | { /* eof */ | |
7443 | return -KEY_eof; | |
7444 | } | |
7445 | ||
7446 | goto unknown; | |
7447 | ||
4c3bbe0f MHM |
7448 | case 'x': |
7449 | if (name[2] == 'p') | |
7450 | { /* exp */ | |
7451 | return -KEY_exp; | |
7452 | } | |
7453 | ||
7454 | goto unknown; | |
7455 | ||
7456 | default: | |
7457 | goto unknown; | |
7458 | } | |
7459 | ||
7460 | case 'f': | |
7461 | if (name[1] == 'o' && | |
7462 | name[2] == 'r') | |
7463 | { /* for */ | |
7464 | return KEY_for; | |
7465 | } | |
7466 | ||
7467 | goto unknown; | |
7468 | ||
7469 | case 'h': | |
7470 | if (name[1] == 'e' && | |
7471 | name[2] == 'x') | |
7472 | { /* hex */ | |
7473 | return -KEY_hex; | |
7474 | } | |
7475 | ||
7476 | goto unknown; | |
7477 | ||
7478 | case 'i': | |
7479 | if (name[1] == 'n' && | |
7480 | name[2] == 't') | |
7481 | { /* int */ | |
7482 | return -KEY_int; | |
7483 | } | |
7484 | ||
7485 | goto unknown; | |
7486 | ||
7487 | case 'l': | |
7488 | if (name[1] == 'o' && | |
7489 | name[2] == 'g') | |
7490 | { /* log */ | |
7491 | return -KEY_log; | |
7492 | } | |
7493 | ||
7494 | goto unknown; | |
7495 | ||
7496 | case 'm': | |
7497 | if (name[1] == 'a' && | |
7498 | name[2] == 'p') | |
7499 | { /* map */ | |
7500 | return KEY_map; | |
7501 | } | |
7502 | ||
7503 | goto unknown; | |
7504 | ||
7505 | case 'n': | |
7506 | if (name[1] == 'o' && | |
7507 | name[2] == 't') | |
7508 | { /* not */ | |
7509 | return -KEY_not; | |
7510 | } | |
7511 | ||
7512 | goto unknown; | |
7513 | ||
7514 | case 'o': | |
7515 | switch (name[1]) | |
7516 | { | |
7517 | case 'c': | |
7518 | if (name[2] == 't') | |
7519 | { /* oct */ | |
7520 | return -KEY_oct; | |
7521 | } | |
7522 | ||
7523 | goto unknown; | |
7524 | ||
7525 | case 'r': | |
7526 | if (name[2] == 'd') | |
7527 | { /* ord */ | |
7528 | return -KEY_ord; | |
7529 | } | |
7530 | ||
7531 | goto unknown; | |
7532 | ||
7533 | case 'u': | |
7534 | if (name[2] == 'r') | |
7535 | { /* our */ | |
7536 | return KEY_our; | |
7537 | } | |
7538 | ||
7539 | goto unknown; | |
7540 | ||
7541 | default: | |
7542 | goto unknown; | |
7543 | } | |
7544 | ||
7545 | case 'p': | |
7546 | if (name[1] == 'o') | |
7547 | { | |
7548 | switch (name[2]) | |
7549 | { | |
7550 | case 'p': | |
7551 | { /* pop */ | |
7552 | return -KEY_pop; | |
7553 | } | |
7554 | ||
4c3bbe0f MHM |
7555 | case 's': |
7556 | { /* pos */ | |
7557 | return KEY_pos; | |
7558 | } | |
7559 | ||
4c3bbe0f MHM |
7560 | default: |
7561 | goto unknown; | |
7562 | } | |
7563 | } | |
7564 | ||
7565 | goto unknown; | |
7566 | ||
7567 | case 'r': | |
7568 | if (name[1] == 'e' && | |
7569 | name[2] == 'f') | |
7570 | { /* ref */ | |
7571 | return -KEY_ref; | |
7572 | } | |
7573 | ||
7574 | goto unknown; | |
7575 | ||
7576 | case 's': | |
7577 | switch (name[1]) | |
7578 | { | |
0d863452 RH |
7579 | case 'a': |
7580 | if (name[2] == 'y') | |
7581 | { /* say */ | |
e3e804c9 | 7582 | return (all_keywords || FEATURE_IS_ENABLED("say") ? KEY_say : 0); |
0d863452 RH |
7583 | } |
7584 | ||
7585 | goto unknown; | |
7586 | ||
4c3bbe0f MHM |
7587 | case 'i': |
7588 | if (name[2] == 'n') | |
7589 | { /* sin */ | |
7590 | return -KEY_sin; | |
7591 | } | |
7592 | ||
7593 | goto unknown; | |
7594 | ||
7595 | case 'u': | |
7596 | if (name[2] == 'b') | |
7597 | { /* sub */ | |
7598 | return KEY_sub; | |
7599 | } | |
7600 | ||
7601 | goto unknown; | |
7602 | ||
7603 | default: | |
7604 | goto unknown; | |
7605 | } | |
7606 | ||
7607 | case 't': | |
7608 | if (name[1] == 'i' && | |
7609 | name[2] == 'e') | |
7610 | { /* tie */ | |
7611 | return KEY_tie; | |
7612 | } | |
7613 | ||
7614 | goto unknown; | |
7615 | ||
7616 | case 'u': | |
7617 | if (name[1] == 's' && | |
7618 | name[2] == 'e') | |
7619 | { /* use */ | |
7620 | return KEY_use; | |
7621 | } | |
7622 | ||
7623 | goto unknown; | |
7624 | ||
7625 | case 'v': | |
7626 | if (name[1] == 'e' && | |
7627 | name[2] == 'c') | |
7628 | { /* vec */ | |
7629 | return -KEY_vec; | |
7630 | } | |
7631 | ||
7632 | goto unknown; | |
7633 | ||
7634 | case 'x': | |
7635 | if (name[1] == 'o' && | |
7636 | name[2] == 'r') | |
7637 | { /* xor */ | |
7638 | return -KEY_xor; | |
7639 | } | |
7640 | ||
7641 | goto unknown; | |
7642 | ||
7643 | default: | |
7644 | goto unknown; | |
e2e1dd5a | 7645 | } |
4c3bbe0f | 7646 | |
0d863452 | 7647 | case 4: /* 41 tokens of length 4 */ |
4c3bbe0f | 7648 | switch (name[0]) |
e2e1dd5a | 7649 | { |
4c3bbe0f MHM |
7650 | case 'C': |
7651 | if (name[1] == 'O' && | |
7652 | name[2] == 'R' && | |
7653 | name[3] == 'E') | |
7654 | { /* CORE */ | |
7655 | return -KEY_CORE; | |
7656 | } | |
7657 | ||
7658 | goto unknown; | |
7659 | ||
7660 | case 'I': | |
7661 | if (name[1] == 'N' && | |
7662 | name[2] == 'I' && | |
7663 | name[3] == 'T') | |
7664 | { /* INIT */ | |
7665 | return KEY_INIT; | |
7666 | } | |
7667 | ||
7668 | goto unknown; | |
7669 | ||
7670 | case 'b': | |
7671 | if (name[1] == 'i' && | |
7672 | name[2] == 'n' && | |
7673 | name[3] == 'd') | |
7674 | { /* bind */ | |
7675 | return -KEY_bind; | |
7676 | } | |
7677 | ||
7678 | goto unknown; | |
7679 | ||
7680 | case 'c': | |
7681 | if (name[1] == 'h' && | |
7682 | name[2] == 'o' && | |
7683 | name[3] == 'p') | |
7684 | { /* chop */ | |
7685 | return -KEY_chop; | |
7686 | } | |
7687 | ||
7688 | goto unknown; | |
7689 | ||
7690 | case 'd': | |
7691 | if (name[1] == 'u' && | |
7692 | name[2] == 'm' && | |
7693 | name[3] == 'p') | |
7694 | { /* dump */ | |
7695 | return -KEY_dump; | |
7696 | } | |
7697 | ||
7698 | goto unknown; | |
7699 | ||
7700 | case 'e': | |
7701 | switch (name[1]) | |
7702 | { | |
7703 | case 'a': | |
7704 | if (name[2] == 'c' && | |
7705 | name[3] == 'h') | |
7706 | { /* each */ | |
7707 | return -KEY_each; | |
7708 | } | |
7709 | ||
7710 | goto unknown; | |
7711 | ||
7712 | case 'l': | |
7713 | if (name[2] == 's' && | |
7714 | name[3] == 'e') | |
7715 | { /* else */ | |
7716 | return KEY_else; | |
7717 | } | |
7718 | ||
7719 | goto unknown; | |
7720 | ||
7721 | case 'v': | |
7722 | if (name[2] == 'a' && | |
7723 | name[3] == 'l') | |
7724 | { /* eval */ | |
7725 | return KEY_eval; | |
7726 | } | |
7727 | ||
7728 | goto unknown; | |
7729 | ||
7730 | case 'x': | |
7731 | switch (name[2]) | |
7732 | { | |
7733 | case 'e': | |
7734 | if (name[3] == 'c') | |
7735 | { /* exec */ | |
7736 | return -KEY_exec; | |
7737 | } | |
7738 | ||
7739 | goto unknown; | |
7740 | ||
7741 | case 'i': | |
7742 | if (name[3] == 't') | |
7743 | { /* exit */ | |
7744 | return -KEY_exit; | |
7745 | } | |
7746 | ||
7747 | goto unknown; | |
7748 | ||
7749 | default: | |
7750 | goto unknown; | |
7751 | } | |
7752 | ||
7753 | default: | |
7754 | goto unknown; | |
7755 | } | |
7756 | ||
7757 | case 'f': | |
7758 | if (name[1] == 'o' && | |
7759 | name[2] == 'r' && | |
7760 | name[3] == 'k') | |
7761 | { /* fork */ | |
7762 | return -KEY_fork; | |
7763 | } | |
7764 | ||
7765 | goto unknown; | |
7766 | ||
7767 | case 'g': | |
7768 | switch (name[1]) | |
7769 | { | |
7770 | case 'e': | |
7771 | if (name[2] == 't' && | |
7772 | name[3] == 'c') | |
7773 | { /* getc */ | |
7774 | return -KEY_getc; | |
7775 | } | |
7776 | ||
7777 | goto unknown; | |
7778 | ||
7779 | case 'l': | |
7780 | if (name[2] == 'o' && | |
7781 | name[3] == 'b') | |
7782 | { /* glob */ | |
7783 | return KEY_glob; | |
7784 | } | |
7785 | ||
7786 | goto unknown; | |
7787 | ||
7788 | case 'o': | |
7789 | if (name[2] == 't' && | |
7790 | name[3] == 'o') | |
7791 | { /* goto */ | |
7792 | return KEY_goto; | |
7793 | } | |
7794 | ||
7795 | goto unknown; | |
7796 | ||
7797 | case 'r': | |
7798 | if (name[2] == 'e' && | |
7799 | name[3] == 'p') | |
7800 | { /* grep */ | |
7801 | return KEY_grep; | |
7802 | } | |
7803 | ||
7804 | goto unknown; | |
7805 | ||
7806 | default: | |
7807 | goto unknown; | |
7808 | } | |
7809 | ||
7810 | case 'j': | |
7811 | if (name[1] == 'o' && | |
7812 | name[2] == 'i' && | |
7813 | name[3] == 'n') | |
7814 | { /* join */ | |
7815 | return -KEY_join; | |
7816 | } | |
7817 | ||
7818 | goto unknown; | |
7819 | ||
7820 | case 'k': | |
7821 | switch (name[1]) | |
7822 | { | |
7823 | case 'e': | |
7824 | if (name[2] == 'y' && | |
7825 | name[3] == 's') | |
7826 | { /* keys */ | |
7827 | return -KEY_keys; | |
7828 | } | |
7829 | ||
7830 | goto unknown; | |
7831 | ||
7832 | case 'i': | |
7833 | if (name[2] == 'l' && | |
7834 | name[3] == 'l') | |
7835 | { /* kill */ | |
7836 | return -KEY_kill; | |
7837 | } | |
7838 | ||
7839 | goto unknown; | |
7840 | ||
7841 | default: | |
7842 | goto unknown; | |
7843 | } | |
7844 | ||
7845 | case 'l': | |
7846 | switch (name[1]) | |
7847 | { | |
7848 | case 'a': | |
7849 | if (name[2] == 's' && | |
7850 | name[3] == 't') | |
7851 | { /* last */ | |
7852 | return KEY_last; | |
7853 | } | |
7854 | ||
7855 | goto unknown; | |
7856 | ||
7857 | case 'i': | |
7858 | if (name[2] == 'n' && | |
7859 | name[3] == 'k') | |
7860 | { /* link */ | |
7861 | return -KEY_link; | |
7862 | } | |
7863 | ||
7864 | goto unknown; | |
7865 | ||
7866 | case 'o': | |
7867 | if (name[2] == 'c' && | |
7868 | name[3] == 'k') | |
7869 | { /* lock */ | |
7870 | return -KEY_lock; | |
7871 | } | |
7872 | ||
7873 | goto unknown; | |
7874 | ||
7875 | default: | |
7876 | goto unknown; | |
7877 | } | |
7878 | ||
7879 | case 'n': | |
7880 | if (name[1] == 'e' && | |
7881 | name[2] == 'x' && | |
7882 | name[3] == 't') | |
7883 | { /* next */ | |
7884 | return KEY_next; | |
7885 | } | |
7886 | ||
7887 | goto unknown; | |
7888 | ||
7889 | case 'o': | |
7890 | if (name[1] == 'p' && | |
7891 | name[2] == 'e' && | |
7892 | name[3] == 'n') | |
7893 | { /* open */ | |
7894 | return -KEY_open; | |
7895 | } | |
7896 | ||
7897 | goto unknown; | |
7898 | ||
7899 | case 'p': | |
7900 | switch (name[1]) | |
7901 | { | |
7902 | case 'a': | |
7903 | if (name[2] == 'c' && | |
7904 | name[3] == 'k') | |
7905 | { /* pack */ | |
7906 | return -KEY_pack; | |
7907 | } | |
7908 | ||
7909 | goto unknown; | |
7910 | ||
7911 | case 'i': | |
7912 | if (name[2] == 'p' && | |
7913 | name[3] == 'e') | |
7914 | { /* pipe */ | |
7915 | return -KEY_pipe; | |
7916 | } | |
7917 | ||
7918 | goto unknown; | |
7919 | ||
7920 | case 'u': | |
7921 | if (name[2] == 's' && | |
7922 | name[3] == 'h') | |
7923 | { /* push */ | |
7924 | return -KEY_push; | |
7925 | } | |
7926 | ||
7927 | goto unknown; | |
7928 | ||
7929 | default: | |
7930 | goto unknown; | |
7931 | } | |
7932 | ||
7933 | case 'r': | |
7934 | switch (name[1]) | |
7935 | { | |
7936 | case 'a': | |
7937 | if (name[2] == 'n' && | |
7938 | name[3] == 'd') | |
7939 | { /* rand */ | |
7940 | return -KEY_rand; | |
7941 | } | |
7942 | ||
7943 | goto unknown; | |
7944 | ||
7945 | case 'e': | |
7946 | switch (name[2]) | |
7947 | { | |
7948 | case 'a': | |
7949 | if (name[3] == 'd') | |
7950 | { /* read */ | |
7951 | return -KEY_read; | |
7952 | } | |
7953 | ||
7954 | goto unknown; | |
7955 | ||
7956 | case 'c': | |
7957 | if (name[3] == 'v') | |
7958 | { /* recv */ | |
7959 | return -KEY_recv; | |
7960 | } | |
7961 | ||
7962 | goto unknown; | |
7963 | ||
7964 | case 'd': | |
7965 | if (name[3] == 'o') | |
7966 | { /* redo */ | |
7967 | return KEY_redo; | |
7968 | } | |
7969 | ||
7970 | goto unknown; | |
7971 | ||
7972 | default: | |
7973 | goto unknown; | |
7974 | } | |
7975 | ||
7976 | default: | |
7977 | goto unknown; | |
7978 | } | |
7979 | ||
7980 | case 's': | |
7981 | switch (name[1]) | |
7982 | { | |
7983 | case 'e': | |
7984 | switch (name[2]) | |
7985 | { | |
7986 | case 'e': | |
7987 | if (name[3] == 'k') | |
7988 | { /* seek */ | |
7989 | return -KEY_seek; | |
7990 | } | |
7991 | ||
7992 | goto unknown; | |
7993 | ||
7994 | case 'n': | |
7995 | if (name[3] == 'd') | |
7996 | { /* send */ | |
7997 | return -KEY_send; | |
7998 | } | |
7999 | ||
8000 | goto unknown; | |
8001 | ||
8002 | default: | |
8003 | goto unknown; | |
8004 | } | |
8005 | ||
8006 | case 'o': | |
8007 | if (name[2] == 'r' && | |
8008 | name[3] == 't') | |
8009 | { /* sort */ | |
8010 | return KEY_sort; | |
8011 | } | |
8012 | ||
8013 | goto unknown; | |
8014 | ||
8015 | case 'q': | |
8016 | if (name[2] == 'r' && | |
8017 | name[3] == 't') | |
8018 | { /* sqrt */ | |
8019 | return -KEY_sqrt; | |
8020 | } | |
8021 | ||
8022 | goto unknown; | |
8023 | ||
8024 | case 't': | |
8025 | if (name[2] == 'a' && | |
8026 | name[3] == 't') | |
8027 | { /* stat */ | |
8028 | return -KEY_stat; | |
8029 | } | |
8030 | ||
8031 | goto unknown; | |
8032 | ||
8033 | default: | |
8034 | goto unknown; | |
8035 | } | |
8036 | ||
8037 | case 't': | |
8038 | switch (name[1]) | |
8039 | { | |
8040 | case 'e': | |
8041 | if (name[2] == 'l' && | |
8042 | name[3] == 'l') | |
8043 | { /* tell */ | |
8044 | return -KEY_tell; | |
8045 | } | |
8046 | ||
8047 | goto unknown; | |
8048 | ||
8049 | case 'i': | |
8050 | switch (name[2]) | |
8051 | { | |
8052 | case 'e': | |
8053 | if (name[3] == 'd') | |
8054 | { /* tied */ | |
8055 | return KEY_tied; | |
8056 | } | |
8057 | ||
8058 | goto unknown; | |
8059 | ||
8060 | case 'm': | |
8061 | if (name[3] == 'e') | |
8062 | { /* time */ | |
8063 | return -KEY_time; | |
8064 | } | |
8065 | ||
8066 | goto unknown; | |
8067 | ||
8068 | default: | |
8069 | goto unknown; | |
8070 | } | |
8071 | ||
8072 | default: | |
8073 | goto unknown; | |
8074 | } | |
8075 | ||
8076 | case 'w': | |
0d863452 | 8077 | switch (name[1]) |
4c3bbe0f | 8078 | { |
0d863452 | 8079 | case 'a': |
952306ac RGS |
8080 | switch (name[2]) |
8081 | { | |
8082 | case 'i': | |
8083 | if (name[3] == 't') | |
8084 | { /* wait */ | |
8085 | return -KEY_wait; | |
8086 | } | |
4c3bbe0f | 8087 | |
952306ac | 8088 | goto unknown; |
4c3bbe0f | 8089 | |
952306ac RGS |
8090 | case 'r': |
8091 | if (name[3] == 'n') | |
8092 | { /* warn */ | |
8093 | return -KEY_warn; | |
8094 | } | |
4c3bbe0f | 8095 | |
952306ac | 8096 | goto unknown; |
4c3bbe0f | 8097 | |
952306ac RGS |
8098 | default: |
8099 | goto unknown; | |
8100 | } | |
0d863452 RH |
8101 | |
8102 | case 'h': | |
8103 | if (name[2] == 'e' && | |
8104 | name[3] == 'n') | |
8105 | { /* when */ | |
5458a98a | 8106 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_when : 0); |
952306ac | 8107 | } |
4c3bbe0f | 8108 | |
952306ac | 8109 | goto unknown; |
4c3bbe0f | 8110 | |
952306ac RGS |
8111 | default: |
8112 | goto unknown; | |
8113 | } | |
4c3bbe0f | 8114 | |
0d863452 RH |
8115 | default: |
8116 | goto unknown; | |
8117 | } | |
8118 | ||
952306ac | 8119 | case 5: /* 39 tokens of length 5 */ |
4c3bbe0f | 8120 | switch (name[0]) |
e2e1dd5a | 8121 | { |
4c3bbe0f MHM |
8122 | case 'B': |
8123 | if (name[1] == 'E' && | |
8124 | name[2] == 'G' && | |
8125 | name[3] == 'I' && | |
8126 | name[4] == 'N') | |
8127 | { /* BEGIN */ | |
8128 | return KEY_BEGIN; | |
8129 | } | |
8130 | ||
8131 | goto unknown; | |
8132 | ||
8133 | case 'C': | |
8134 | if (name[1] == 'H' && | |
8135 | name[2] == 'E' && | |
8136 | name[3] == 'C' && | |
8137 | name[4] == 'K') | |
8138 | { /* CHECK */ | |
8139 | return KEY_CHECK; | |
8140 | } | |
8141 | ||
8142 | goto unknown; | |
8143 | ||
8144 | case 'a': | |
8145 | switch (name[1]) | |
8146 | { | |
8147 | case 'l': | |
8148 | if (name[2] == 'a' && | |
8149 | name[3] == 'r' && | |
8150 | name[4] == 'm') | |
8151 | { /* alarm */ | |
8152 | return -KEY_alarm; | |
8153 | } | |
8154 | ||
8155 | goto unknown; | |
8156 | ||
8157 | case 't': | |
8158 | if (name[2] == 'a' && | |
8159 | name[3] == 'n' && | |
8160 | name[4] == '2') | |
8161 | { /* atan2 */ | |
8162 | return -KEY_atan2; | |
8163 | } | |
8164 | ||
8165 | goto unknown; | |
8166 | ||
8167 | default: | |
8168 | goto unknown; | |
8169 | } | |
8170 | ||
8171 | case 'b': | |
0d863452 RH |
8172 | switch (name[1]) |
8173 | { | |
8174 | case 'l': | |
8175 | if (name[2] == 'e' && | |
952306ac RGS |
8176 | name[3] == 's' && |
8177 | name[4] == 's') | |
8178 | { /* bless */ | |
8179 | return -KEY_bless; | |
8180 | } | |
4c3bbe0f | 8181 | |
952306ac | 8182 | goto unknown; |
4c3bbe0f | 8183 | |
0d863452 RH |
8184 | case 'r': |
8185 | if (name[2] == 'e' && | |
8186 | name[3] == 'a' && | |
8187 | name[4] == 'k') | |
8188 | { /* break */ | |
5458a98a | 8189 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? -KEY_break : 0); |
0d863452 RH |
8190 | } |
8191 | ||
8192 | goto unknown; | |
8193 | ||
8194 | default: | |
8195 | goto unknown; | |
8196 | } | |
8197 | ||
4c3bbe0f MHM |
8198 | case 'c': |
8199 | switch (name[1]) | |
8200 | { | |
8201 | case 'h': | |
8202 | switch (name[2]) | |
8203 | { | |
8204 | case 'd': | |
8205 | if (name[3] == 'i' && | |
8206 | name[4] == 'r') | |
8207 | { /* chdir */ | |
8208 | return -KEY_chdir; | |
8209 | } | |
8210 | ||
8211 | goto unknown; | |
8212 | ||
8213 | case 'm': | |
8214 | if (name[3] == 'o' && | |
8215 | name[4] == 'd') | |
8216 | { /* chmod */ | |
8217 | return -KEY_chmod; | |
8218 | } | |
8219 | ||
8220 | goto unknown; | |
8221 | ||
8222 | case 'o': | |
8223 | switch (name[3]) | |
8224 | { | |
8225 | case 'm': | |
8226 | if (name[4] == 'p') | |
8227 | { /* chomp */ | |
8228 | return -KEY_chomp; | |
8229 | } | |
8230 | ||
8231 | goto unknown; | |
8232 | ||
8233 | case 'w': | |
8234 | if (name[4] == 'n') | |
8235 | { /* chown */ | |
8236 | return -KEY_chown; | |
8237 | } | |
8238 | ||
8239 | goto unknown; | |
8240 | ||
8241 | default: | |
8242 | goto unknown; | |
8243 | } | |
8244 | ||
8245 | default: | |
8246 | goto unknown; | |
8247 | } | |
8248 | ||
8249 | case 'l': | |
8250 | if (name[2] == 'o' && | |
8251 | name[3] == 's' && | |
8252 | name[4] == 'e') | |
8253 | { /* close */ | |
8254 | return -KEY_close; | |
8255 | } | |
8256 | ||
8257 | goto unknown; | |
8258 | ||
8259 | case 'r': | |
8260 | if (name[2] == 'y' && | |
8261 | name[3] == 'p' && | |
8262 | name[4] == 't') | |
8263 | { /* crypt */ | |
8264 | return -KEY_crypt; | |
8265 | } | |
8266 | ||
8267 | goto unknown; | |
8268 | ||
8269 | default: | |
8270 | goto unknown; | |
8271 | } | |
8272 | ||
8273 | case 'e': | |
8274 | if (name[1] == 'l' && | |
8275 | name[2] == 's' && | |
8276 | name[3] == 'i' && | |
8277 | name[4] == 'f') | |
8278 | { /* elsif */ | |
8279 | return KEY_elsif; | |
8280 | } | |
8281 | ||
8282 | goto unknown; | |
8283 | ||
8284 | case 'f': | |
8285 | switch (name[1]) | |
8286 | { | |
8287 | case 'c': | |
8288 | if (name[2] == 'n' && | |
8289 | name[3] == 't' && | |
8290 | name[4] == 'l') | |
8291 | { /* fcntl */ | |
8292 | return -KEY_fcntl; | |
8293 | } | |
8294 | ||
8295 | goto unknown; | |
8296 | ||
8297 | case 'l': | |
8298 | if (name[2] == 'o' && | |
8299 | name[3] == 'c' && | |
8300 | name[4] == 'k') | |
8301 | { /* flock */ | |
8302 | return -KEY_flock; | |
8303 | } | |
8304 | ||
8305 | goto unknown; | |
8306 | ||
8307 | default: | |
8308 | goto unknown; | |
8309 | } | |
8310 | ||
0d863452 RH |
8311 | case 'g': |
8312 | if (name[1] == 'i' && | |
8313 | name[2] == 'v' && | |
8314 | name[3] == 'e' && | |
8315 | name[4] == 'n') | |
8316 | { /* given */ | |
5458a98a | 8317 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_given : 0); |
0d863452 RH |
8318 | } |
8319 | ||
8320 | goto unknown; | |
8321 | ||
4c3bbe0f MHM |
8322 | case 'i': |
8323 | switch (name[1]) | |
8324 | { | |
8325 | case 'n': | |
8326 | if (name[2] == 'd' && | |
8327 | name[3] == 'e' && | |
8328 | name[4] == 'x') | |
8329 | { /* index */ | |
8330 | return -KEY_index; | |
8331 | } | |
8332 | ||
8333 | goto unknown; | |
8334 | ||
8335 | case 'o': | |
8336 | if (name[2] == 'c' && | |
8337 | name[3] == 't' && | |
8338 | name[4] == 'l') | |
8339 | { /* ioctl */ | |
8340 | return -KEY_ioctl; | |
8341 | } | |
8342 | ||
8343 | goto unknown; | |
8344 | ||
8345 | default: | |
8346 | goto unknown; | |
8347 | } | |
8348 | ||
8349 | case 'l': | |
8350 | switch (name[1]) | |
8351 | { | |
8352 | case 'o': | |
8353 | if (name[2] == 'c' && | |
8354 | name[3] == 'a' && | |
8355 | name[4] == 'l') | |
8356 | { /* local */ | |
8357 | return KEY_local; | |
8358 | } | |
8359 | ||
8360 | goto unknown; | |
8361 | ||
8362 | case 's': | |
8363 | if (name[2] == 't' && | |
8364 | name[3] == 'a' && | |
8365 | name[4] == 't') | |
8366 | { /* lstat */ | |
8367 | return -KEY_lstat; | |
8368 | } | |
8369 | ||
8370 | goto unknown; | |
8371 | ||
8372 | default: | |
8373 | goto unknown; | |
8374 | } | |
8375 | ||
8376 | case 'm': | |
8377 | if (name[1] == 'k' && | |
8378 | name[2] == 'd' && | |
8379 | name[3] == 'i' && | |
8380 | name[4] == 'r') | |
8381 | { /* mkdir */ | |
8382 | return -KEY_mkdir; | |
8383 | } | |
8384 | ||
8385 | goto unknown; | |
8386 | ||
8387 | case 'p': | |
8388 | if (name[1] == 'r' && | |
8389 | name[2] == 'i' && | |
8390 | name[3] == 'n' && | |
8391 | name[4] == 't') | |
8392 | { /* print */ | |
8393 | return KEY_print; | |
8394 | } | |
8395 | ||
8396 | goto unknown; | |
8397 | ||
8398 | case 'r': | |
8399 | switch (name[1]) | |
8400 | { | |
8401 | case 'e': | |
8402 | if (name[2] == 's' && | |
8403 | name[3] == 'e' && | |
8404 | name[4] == 't') | |
8405 | { /* reset */ | |
8406 | return -KEY_reset; | |
8407 | } | |
8408 | ||
8409 | goto unknown; | |
8410 | ||
8411 | case 'm': | |
8412 | if (name[2] == 'd' && | |
8413 | name[3] == 'i' && | |
8414 | name[4] == 'r') | |
8415 | { /* rmdir */ | |
8416 | return -KEY_rmdir; | |
8417 | } | |
8418 | ||
8419 | goto unknown; | |
8420 | ||
8421 | default: | |
8422 | goto unknown; | |
8423 | } | |
8424 | ||
8425 | case 's': | |
8426 | switch (name[1]) | |
8427 | { | |
8428 | case 'e': | |
8429 | if (name[2] == 'm' && | |
8430 | name[3] == 'o' && | |
8431 | name[4] == 'p') | |
8432 | { /* semop */ | |
8433 | return -KEY_semop; | |
8434 | } | |
8435 | ||
8436 | goto unknown; | |
8437 | ||
8438 | case 'h': | |
8439 | if (name[2] == 'i' && | |
8440 | name[3] == 'f' && | |
8441 | name[4] == 't') | |
8442 | { /* shift */ | |
8443 | return -KEY_shift; | |
8444 | } | |
8445 | ||
8446 | goto unknown; | |
8447 | ||
8448 | case 'l': | |
8449 | if (name[2] == 'e' && | |
8450 | name[3] == 'e' && | |
8451 | name[4] == 'p') | |
8452 | { /* sleep */ | |
8453 | return -KEY_sleep; | |
8454 | } | |
8455 | ||
8456 | goto unknown; | |
8457 | ||
8458 | case 'p': | |
8459 | if (name[2] == 'l' && | |
8460 | name[3] == 'i' && | |
8461 | name[4] == 't') | |
8462 | { /* split */ | |
8463 | return KEY_split; | |
8464 | } | |
8465 | ||
8466 | goto unknown; | |
8467 | ||
8468 | case 'r': | |
8469 | if (name[2] == 'a' && | |
8470 | name[3] == 'n' && | |
8471 | name[4] == 'd') | |
8472 | { /* srand */ | |
8473 | return -KEY_srand; | |
8474 | } | |
8475 | ||
8476 | goto unknown; | |
8477 | ||
8478 | case 't': | |
952306ac RGS |
8479 | switch (name[2]) |
8480 | { | |
8481 | case 'a': | |
8482 | if (name[3] == 't' && | |
8483 | name[4] == 'e') | |
8484 | { /* state */ | |
5458a98a | 8485 | return (all_keywords || FEATURE_IS_ENABLED("state") ? KEY_state : 0); |
952306ac | 8486 | } |
4c3bbe0f | 8487 | |
952306ac RGS |
8488 | goto unknown; |
8489 | ||
8490 | case 'u': | |
8491 | if (name[3] == 'd' && | |
8492 | name[4] == 'y') | |
8493 | { /* study */ | |
8494 | return KEY_study; | |
8495 | } | |
8496 | ||
8497 | goto unknown; | |
8498 | ||
8499 | default: | |
8500 | goto unknown; | |
8501 | } | |
4c3bbe0f MHM |
8502 | |
8503 | default: | |
8504 | goto unknown; | |
8505 | } | |
8506 | ||
8507 | case 't': | |
8508 | if (name[1] == 'i' && | |
8509 | name[2] == 'm' && | |
8510 | name[3] == 'e' && | |
8511 | name[4] == 's') | |
8512 | { /* times */ | |
8513 | return -KEY_times; | |
8514 | } | |
8515 | ||
8516 | goto unknown; | |
8517 | ||
8518 | case 'u': | |
8519 | switch (name[1]) | |
8520 | { | |
8521 | case 'm': | |
8522 | if (name[2] == 'a' && | |
8523 | name[3] == 's' && | |
8524 | name[4] == 'k') | |
8525 | { /* umask */ | |
8526 | return -KEY_umask; | |
8527 | } | |
8528 | ||
8529 | goto unknown; | |
8530 | ||
8531 | case 'n': | |
8532 | switch (name[2]) | |
8533 | { | |
8534 | case 'd': | |
8535 | if (name[3] == 'e' && | |
8536 | name[4] == 'f') | |
8537 | { /* undef */ | |
8538 | return KEY_undef; | |
8539 | } | |
8540 | ||
8541 | goto unknown; | |
8542 | ||
8543 | case 't': | |
8544 | if (name[3] == 'i') | |
8545 | { | |
8546 | switch (name[4]) | |
8547 | { | |
8548 | case 'e': | |
8549 | { /* untie */ | |
8550 | return KEY_untie; | |
8551 | } | |
8552 | ||
4c3bbe0f MHM |
8553 | case 'l': |
8554 | { /* until */ | |
8555 | return KEY_until; | |
8556 | } | |
8557 | ||
4c3bbe0f MHM |
8558 | default: |
8559 | goto unknown; | |
8560 | } | |
8561 | } | |
8562 | ||
8563 | goto unknown; | |
8564 | ||
8565 | default: | |
8566 | goto unknown; | |
8567 | } | |
8568 | ||
8569 | case 't': | |
8570 | if (name[2] == 'i' && | |
8571 | name[3] == 'm' && | |
8572 | name[4] == 'e') | |
8573 | { /* utime */ | |
8574 | return -KEY_utime; | |
8575 | } | |
8576 | ||
8577 | goto unknown; | |
8578 | ||
8579 | default: | |
8580 | goto unknown; | |
8581 | } | |
8582 | ||
8583 | case 'w': | |
8584 | switch (name[1]) | |
8585 | { | |
8586 | case 'h': | |
8587 | if (name[2] == 'i' && | |
8588 | name[3] == 'l' && | |
8589 | name[4] == 'e') | |
8590 | { /* while */ | |
8591 | return KEY_while; | |
8592 | } | |
8593 | ||
8594 | goto unknown; | |
8595 | ||
8596 | case 'r': | |
8597 | if (name[2] == 'i' && | |
8598 | name[3] == 't' && | |
8599 | name[4] == 'e') | |
8600 | { /* write */ | |
8601 | return -KEY_write; | |
8602 | } | |
8603 | ||
8604 | goto unknown; | |
8605 | ||
8606 | default: | |
8607 | goto unknown; | |
8608 | } | |
8609 | ||
8610 | default: | |
8611 | goto unknown; | |
e2e1dd5a | 8612 | } |
4c3bbe0f MHM |
8613 | |
8614 | case 6: /* 33 tokens of length 6 */ | |
8615 | switch (name[0]) | |
8616 | { | |
8617 | case 'a': | |
8618 | if (name[1] == 'c' && | |
8619 | name[2] == 'c' && | |
8620 | name[3] == 'e' && | |
8621 | name[4] == 'p' && | |
8622 | name[5] == 't') | |
8623 | { /* accept */ | |
8624 | return -KEY_accept; | |
8625 | } | |
8626 | ||
8627 | goto unknown; | |
8628 | ||
8629 | case 'c': | |
8630 | switch (name[1]) | |
8631 | { | |
8632 | case 'a': | |
8633 | if (name[2] == 'l' && | |
8634 | name[3] == 'l' && | |
8635 | name[4] == 'e' && | |
8636 | name[5] == 'r') | |
8637 | { /* caller */ | |
8638 | return -KEY_caller; | |
8639 | } | |
8640 | ||
8641 | goto unknown; | |
8642 | ||
8643 | case 'h': | |
8644 | if (name[2] == 'r' && | |
8645 | name[3] == 'o' && | |
8646 | name[4] == 'o' && | |
8647 | name[5] == 't') | |
8648 | { /* chroot */ | |
8649 | return -KEY_chroot; | |
8650 | } | |
8651 | ||
8652 | goto unknown; | |
8653 | ||
8654 | default: | |
8655 | goto unknown; | |
8656 | } | |
8657 | ||
8658 | case 'd': | |
8659 | if (name[1] == 'e' && | |
8660 | name[2] == 'l' && | |
8661 | name[3] == 'e' && | |
8662 | name[4] == 't' && | |
8663 | name[5] == 'e') | |
8664 | { /* delete */ | |
8665 | return KEY_delete; | |
8666 | } | |
8667 | ||
8668 | goto unknown; | |
8669 | ||
8670 | case 'e': | |
8671 | switch (name[1]) | |
8672 | { | |
8673 | case 'l': | |
8674 | if (name[2] == 's' && | |
8675 | name[3] == 'e' && | |
8676 | name[4] == 'i' && | |
8677 | name[5] == 'f') | |
8678 | { /* elseif */ | |
8679 | if(ckWARN_d(WARN_SYNTAX)) | |
8680 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); | |
8681 | } | |
8682 | ||
8683 | goto unknown; | |
8684 | ||
8685 | case 'x': | |
8686 | if (name[2] == 'i' && | |
8687 | name[3] == 's' && | |
8688 | name[4] == 't' && | |
8689 | name[5] == 's') | |
8690 | { /* exists */ | |
8691 | return KEY_exists; | |
8692 | } | |
8693 | ||
8694 | goto unknown; | |
8695 | ||
8696 | default: | |
8697 | goto unknown; | |
8698 | } | |
8699 | ||
8700 | case 'f': | |
8701 | switch (name[1]) | |
8702 | { | |
8703 | case 'i': | |
8704 | if (name[2] == 'l' && | |
8705 | name[3] == 'e' && | |
8706 | name[4] == 'n' && | |
8707 | name[5] == 'o') | |
8708 | { /* fileno */ | |
8709 | return -KEY_fileno; | |
8710 | } | |
8711 | ||
8712 | goto unknown; | |
8713 | ||
8714 | case 'o': | |
8715 | if (name[2] == 'r' && | |
8716 | name[3] == 'm' && | |
8717 | name[4] == 'a' && | |
8718 | name[5] == 't') | |
8719 | { /* format */ | |
8720 | return KEY_format; | |
8721 | } | |
8722 | ||
8723 | goto unknown; | |
8724 | ||
8725 | default: | |
8726 | goto unknown; | |
8727 | } | |
8728 | ||
8729 | case 'g': | |
8730 | if (name[1] == 'm' && | |
8731 | name[2] == 't' && | |
8732 | name[3] == 'i' && | |
8733 | name[4] == 'm' && | |
8734 | name[5] == 'e') | |
8735 | { /* gmtime */ | |
8736 | return -KEY_gmtime; | |
8737 | } | |
8738 | ||
8739 | goto unknown; | |
8740 | ||
8741 | case 'l': | |
8742 | switch (name[1]) | |
8743 | { | |
8744 | case 'e': | |
8745 | if (name[2] == 'n' && | |
8746 | name[3] == 'g' && | |
8747 | name[4] == 't' && | |
8748 | name[5] == 'h') | |
8749 | { /* length */ | |
8750 | return -KEY_length; | |
8751 | } | |
8752 | ||
8753 | goto unknown; | |
8754 | ||
8755 | case 'i': | |
8756 | if (name[2] == 's' && | |
8757 | name[3] == 't' && | |
8758 | name[4] == 'e' && | |
8759 | name[5] == 'n') | |
8760 | { /* listen */ | |
8761 | return -KEY_listen; | |
8762 | } | |
8763 | ||
8764 | goto unknown; | |
8765 | ||
8766 | default: | |
8767 | goto unknown; | |
8768 | } | |
8769 | ||
8770 | case 'm': | |
8771 | if (name[1] == 's' && | |
8772 | name[2] == 'g') | |
8773 | { | |
8774 | switch (name[3]) | |
8775 | { | |
8776 | case 'c': | |
8777 | if (name[4] == 't' && | |
8778 | name[5] == 'l') | |
8779 | { /* msgctl */ | |
8780 | return -KEY_msgctl; | |
8781 | } | |
8782 | ||
8783 | goto unknown; | |
8784 | ||
8785 | case 'g': | |
8786 | if (name[4] == 'e' && | |
8787 | name[5] == 't') | |
8788 | { /* msgget */ | |
8789 | return -KEY_msgget; | |
8790 | } | |
8791 | ||
8792 | goto unknown; | |
8793 | ||
8794 | case 'r': | |
8795 | if (name[4] == 'c' && | |
8796 | name[5] == 'v') | |
8797 | { /* msgrcv */ | |
8798 | return -KEY_msgrcv; | |
8799 | } | |
8800 | ||
8801 | goto unknown; | |
8802 | ||
8803 | case 's': | |
8804 | if (name[4] == 'n' && | |
8805 | name[5] == 'd') | |
8806 | { /* msgsnd */ | |
8807 | return -KEY_msgsnd; | |
8808 | } | |
8809 | ||
8810 | goto unknown; | |
8811 | ||
8812 | default: | |
8813 | goto unknown; | |
8814 | } | |
8815 | } | |
8816 | ||
8817 | goto unknown; | |
8818 | ||
8819 | case 'p': | |
8820 | if (name[1] == 'r' && | |
8821 | name[2] == 'i' && | |
8822 | name[3] == 'n' && | |
8823 | name[4] == 't' && | |
8824 | name[5] == 'f') | |
8825 | { /* printf */ | |
8826 | return KEY_printf; | |
8827 | } | |
8828 | ||
8829 | goto unknown; | |
8830 | ||
8831 | case 'r': | |
8832 | switch (name[1]) | |
8833 | { | |
8834 | case 'e': | |
8835 | switch (name[2]) | |
8836 | { | |
8837 | case 'n': | |
8838 | if (name[3] == 'a' && | |
8839 | name[4] == 'm' && | |
8840 | name[5] == 'e') | |
8841 | { /* rename */ | |
8842 | return -KEY_rename; | |
8843 | } | |
8844 | ||
8845 | goto unknown; | |
8846 | ||
8847 | case 't': | |
8848 | if (name[3] == 'u' && | |
8849 | name[4] == 'r' && | |
8850 | name[5] == 'n') | |
8851 | { /* return */ | |
8852 | return KEY_return; | |
8853 | } | |
8854 | ||
8855 | goto unknown; | |
8856 | ||
8857 | default: | |
8858 | goto unknown; | |
8859 | } | |
8860 | ||
8861 | case 'i': | |
8862 | if (name[2] == 'n' && | |
8863 | name[3] == 'd' && | |
8864 | name[4] == 'e' && | |
8865 | name[5] == 'x') | |
8866 | { /* rindex */ | |
8867 | return -KEY_rindex; | |
8868 | } | |
8869 | ||
8870 | goto unknown; | |
8871 | ||
8872 | default: | |
8873 | goto unknown; | |
8874 | } | |
8875 | ||
8876 | case 's': | |
8877 | switch (name[1]) | |
8878 | { | |
8879 | case 'c': | |
8880 | if (name[2] == 'a' && | |
8881 | name[3] == 'l' && | |
8882 | name[4] == 'a' && | |
8883 | name[5] == 'r') | |
8884 | { /* scalar */ | |
8885 | return KEY_scalar; | |
8886 | } | |
8887 | ||
8888 | goto unknown; | |
8889 | ||
8890 | case 'e': | |
8891 | switch (name[2]) | |
8892 | { | |
8893 | case 'l': | |
8894 | if (name[3] == 'e' && | |
8895 | name[4] == 'c' && | |
8896 | name[5] == 't') | |
8897 | { /* select */ | |
8898 | return -KEY_select; | |
8899 | } | |
8900 | ||
8901 | goto unknown; | |
8902 | ||
8903 | case 'm': | |
8904 | switch (name[3]) | |
8905 | { | |
8906 | case 'c': | |
8907 | if (name[4] == 't' && | |
8908 | name[5] == 'l') | |
8909 | { /* semctl */ | |
8910 | return -KEY_semctl; | |
8911 | } | |
8912 | ||
8913 | goto unknown; | |
8914 | ||
8915 | case 'g': | |
8916 | if (name[4] == 'e' && | |
8917 | name[5] == 't') | |
8918 | { /* semget */ | |
8919 | return -KEY_semget; | |
8920 | } | |
8921 | ||
8922 | goto unknown; | |
8923 | ||
8924 | default: | |
8925 | goto unknown; | |
8926 | } | |
8927 | ||
8928 | default: | |
8929 | goto unknown; | |
8930 | } | |
8931 | ||
8932 | case 'h': | |
8933 | if (name[2] == 'm') | |
8934 | { | |
8935 | switch (name[3]) | |
8936 | { | |
8937 | case 'c': | |
8938 | if (name[4] == 't' && | |
8939 | name[5] == 'l') | |
8940 | { /* shmctl */ | |
8941 | return -KEY_shmctl; | |
8942 | } | |
8943 | ||
8944 | goto unknown; | |
8945 | ||
8946 | case 'g': | |
8947 | if (name[4] == 'e' && | |
8948 | name[5] == 't') | |
8949 | { /* shmget */ | |
8950 | return -KEY_shmget; | |
8951 | } | |
8952 | ||
8953 | goto unknown; | |
8954 | ||
8955 | default: | |
8956 | goto unknown; | |
8957 | } | |
8958 | } | |
8959 | ||
8960 | goto unknown; | |
8961 | ||
8962 | case 'o': | |
8963 | if (name[2] == 'c' && | |
8964 | name[3] == 'k' && | |
8965 | name[4] == 'e' && | |
8966 | name[5] == 't') | |
8967 | { /* socket */ | |
8968 | return -KEY_socket; | |
8969 | } | |
8970 | ||
8971 | goto unknown; | |
8972 | ||
8973 | case 'p': | |
8974 | if (name[2] == 'l' && | |
8975 | name[3] == 'i' && | |
8976 | name[4] == 'c' && | |
8977 | name[5] == 'e') | |
8978 | { /* splice */ | |
8979 | return -KEY_splice; | |
8980 | } | |
8981 | ||
8982 | goto unknown; | |
8983 | ||
8984 | case 'u': | |
8985 | if (name[2] == 'b' && | |
8986 | name[3] == 's' && | |
8987 | name[4] == 't' && | |
8988 | name[5] == 'r') | |
8989 | { /* substr */ | |
8990 | return -KEY_substr; | |
8991 | } | |
8992 | ||
8993 | goto unknown; | |
8994 | ||
8995 | case 'y': | |
8996 | if (name[2] == 's' && | |
8997 | name[3] == 't' && | |
8998 | name[4] == 'e' && | |
8999 | name[5] == 'm') | |
9000 | { /* system */ | |
9001 | return -KEY_system; | |
9002 | } | |
9003 | ||
9004 | goto unknown; | |
9005 | ||
9006 | default: | |
9007 | goto unknown; | |
9008 | } | |
9009 | ||
9010 | case 'u': | |
9011 | if (name[1] == 'n') | |
9012 | { | |
9013 | switch (name[2]) | |
9014 | { | |
9015 | case 'l': | |
9016 | switch (name[3]) | |
9017 | { | |
9018 | case 'e': | |
9019 | if (name[4] == 's' && | |
9020 | name[5] == 's') | |
9021 | { /* unless */ | |
9022 | return KEY_unless; | |
9023 | } | |
9024 | ||
9025 | goto unknown; | |
9026 | ||
9027 | case 'i': | |
9028 | if (name[4] == 'n' && | |
9029 | name[5] == 'k') | |
9030 | { /* unlink */ | |
9031 | return -KEY_unlink; | |
9032 | } | |
9033 | ||
9034 | goto unknown; | |
9035 | ||
9036 | default: | |
9037 | goto unknown; | |
9038 | } | |
9039 | ||
9040 | case 'p': | |
9041 | if (name[3] == 'a' && | |
9042 | name[4] == 'c' && | |
9043 | name[5] == 'k') | |
9044 | { /* unpack */ | |
9045 | return -KEY_unpack; | |
9046 | } | |
9047 | ||
9048 | goto unknown; | |
9049 | ||
9050 | default: | |
9051 | goto unknown; | |
9052 | } | |
9053 | } | |
9054 | ||
9055 | goto unknown; | |
9056 | ||
9057 | case 'v': | |
9058 | if (name[1] == 'a' && | |
9059 | name[2] == 'l' && | |
9060 | name[3] == 'u' && | |
9061 | name[4] == 'e' && | |
9062 | name[5] == 's') | |
9063 | { /* values */ | |
9064 | return -KEY_values; | |
9065 | } | |
9066 | ||
9067 | goto unknown; | |
9068 | ||
9069 | default: | |
9070 | goto unknown; | |
e2e1dd5a | 9071 | } |
4c3bbe0f | 9072 | |
0d863452 | 9073 | case 7: /* 29 tokens of length 7 */ |
4c3bbe0f MHM |
9074 | switch (name[0]) |
9075 | { | |
9076 | case 'D': | |
9077 | if (name[1] == 'E' && | |
9078 | name[2] == 'S' && | |
9079 | name[3] == 'T' && | |
9080 | name[4] == 'R' && | |
9081 | name[5] == 'O' && | |
9082 | name[6] == 'Y') | |
9083 | { /* DESTROY */ | |
9084 | return KEY_DESTROY; | |
9085 | } | |
9086 | ||
9087 | goto unknown; | |
9088 | ||
9089 | case '_': | |
9090 | if (name[1] == '_' && | |
9091 | name[2] == 'E' && | |
9092 | name[3] == 'N' && | |
9093 | name[4] == 'D' && | |
9094 | name[5] == '_' && | |
9095 | name[6] == '_') | |
9096 | { /* __END__ */ | |
9097 | return KEY___END__; | |
9098 | } | |
9099 | ||
9100 | goto unknown; | |
9101 | ||
9102 | case 'b': | |
9103 | if (name[1] == 'i' && | |
9104 | name[2] == 'n' && | |
9105 | name[3] == 'm' && | |
9106 | name[4] == 'o' && | |
9107 | name[5] == 'd' && | |
9108 | name[6] == 'e') | |
9109 | { /* binmode */ | |
9110 | return -KEY_binmode; | |
9111 | } | |
9112 | ||
9113 | goto unknown; | |
9114 | ||
9115 | case 'c': | |
9116 | if (name[1] == 'o' && | |
9117 | name[2] == 'n' && | |
9118 | name[3] == 'n' && | |
9119 | name[4] == 'e' && | |
9120 | name[5] == 'c' && | |
9121 | name[6] == 't') | |
9122 | { /* connect */ | |
9123 | return -KEY_connect; | |
9124 | } | |
9125 | ||
9126 | goto unknown; | |
9127 | ||
9128 | case 'd': | |
9129 | switch (name[1]) | |
9130 | { | |
9131 | case 'b': | |
9132 | if (name[2] == 'm' && | |
9133 | name[3] == 'o' && | |
9134 | name[4] == 'p' && | |
9135 | name[5] == 'e' && | |
9136 | name[6] == 'n') | |
9137 | { /* dbmopen */ | |
9138 | return -KEY_dbmopen; | |
9139 | } | |
9140 | ||
9141 | goto unknown; | |
9142 | ||
9143 | case 'e': | |
0d863452 RH |
9144 | if (name[2] == 'f') |
9145 | { | |
9146 | switch (name[3]) | |
9147 | { | |
9148 | case 'a': | |
9149 | if (name[4] == 'u' && | |
9150 | name[5] == 'l' && | |
9151 | name[6] == 't') | |
9152 | { /* default */ | |
5458a98a | 9153 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_default : 0); |
0d863452 RH |
9154 | } |
9155 | ||
9156 | goto unknown; | |
9157 | ||
9158 | case 'i': | |
9159 | if (name[4] == 'n' && | |
952306ac RGS |
9160 | name[5] == 'e' && |
9161 | name[6] == 'd') | |
9162 | { /* defined */ | |
9163 | return KEY_defined; | |
9164 | } | |
4c3bbe0f | 9165 | |
952306ac | 9166 | goto unknown; |
4c3bbe0f | 9167 | |
952306ac RGS |
9168 | default: |
9169 | goto unknown; | |
9170 | } | |
0d863452 RH |
9171 | } |
9172 | ||
9173 | goto unknown; | |
9174 | ||
9175 | default: | |
9176 | goto unknown; | |
9177 | } | |
4c3bbe0f MHM |
9178 | |
9179 | case 'f': | |
9180 | if (name[1] == 'o' && | |
9181 | name[2] == 'r' && | |
9182 | name[3] == 'e' && | |
9183 | name[4] == 'a' && | |
9184 | name[5] == 'c' && | |
9185 | name[6] == 'h') | |
9186 | { /* foreach */ | |
9187 | return KEY_foreach; | |
9188 | } | |
9189 | ||
9190 | goto unknown; | |
9191 | ||
9192 | case 'g': | |
9193 | if (name[1] == 'e' && | |
9194 | name[2] == 't' && | |
9195 | name[3] == 'p') | |
9196 | { | |
9197 | switch (name[4]) | |
9198 | { | |
9199 | case 'g': | |
9200 | if (name[5] == 'r' && | |
9201 | name[6] == 'p') | |
9202 | { /* getpgrp */ | |
9203 | return -KEY_getpgrp; | |
9204 | } | |
9205 | ||
9206 | goto unknown; | |
9207 | ||
9208 | case 'p': | |
9209 | if (name[5] == 'i' && | |
9210 | name[6] == 'd') | |
9211 | { /* getppid */ | |
9212 | return -KEY_getppid; | |
9213 | } | |
9214 | ||
9215 | goto unknown; | |
9216 | ||
9217 | default: | |
9218 | goto unknown; | |
9219 | } | |
9220 | } | |
9221 | ||
9222 | goto unknown; | |
9223 | ||
9224 | case 'l': | |
9225 | if (name[1] == 'c' && | |
9226 | name[2] == 'f' && | |
9227 | name[3] == 'i' && | |
9228 | name[4] == 'r' && | |
9229 | name[5] == 's' && | |
9230 | name[6] == 't') | |
9231 | { /* lcfirst */ | |
9232 | return -KEY_lcfirst; | |
9233 | } | |
9234 | ||
9235 | goto unknown; | |
9236 | ||
9237 | case 'o': | |
9238 | if (name[1] == 'p' && | |
9239 | name[2] == 'e' && | |
9240 | name[3] == 'n' && | |
9241 | name[4] == 'd' && | |
9242 | name[5] == 'i' && | |
9243 | name[6] == 'r') | |
9244 | { /* opendir */ | |
9245 | return -KEY_opendir; | |
9246 | } | |
9247 | ||
9248 | goto unknown; | |
9249 | ||
9250 | case 'p': | |
9251 | if (name[1] == 'a' && | |
9252 | name[2] == 'c' && | |
9253 | name[3] == 'k' && | |
9254 | name[4] == 'a' && | |
9255 | name[5] == 'g' && | |
9256 | name[6] == 'e') | |
9257 | { /* package */ | |
9258 | return KEY_package; | |
9259 | } | |
9260 | ||
9261 | goto unknown; | |
9262 | ||
9263 | case 'r': | |
9264 | if (name[1] == 'e') | |
9265 | { | |
9266 | switch (name[2]) | |
9267 | { | |
9268 | case 'a': | |
9269 | if (name[3] == 'd' && | |
9270 | name[4] == 'd' && | |
9271 | name[5] == 'i' && | |
9272 | name[6] == 'r') | |
9273 | { /* readdir */ | |
9274 | return -KEY_readdir; | |
9275 | } | |
9276 | ||
9277 | goto unknown; | |
9278 | ||
9279 | case 'q': | |
9280 | if (name[3] == 'u' && | |
9281 | name[4] == 'i' && | |
9282 | name[5] == 'r' && | |
9283 | name[6] == 'e') | |
9284 | { /* require */ | |
9285 | return KEY_require; | |
9286 | } | |
9287 | ||
9288 | goto unknown; | |
9289 | ||
9290 | case 'v': | |
9291 | if (name[3] == 'e' && | |
9292 | name[4] == 'r' && | |
9293 | name[5] == 's' && | |
9294 | name[6] == 'e') | |
9295 | { /* reverse */ | |
9296 | return -KEY_reverse; | |
9297 | } | |
9298 | ||
9299 | goto unknown; | |
9300 | ||
9301 | default: | |
9302 | goto unknown; | |
9303 | } | |
9304 | } | |
9305 | ||
9306 | goto unknown; | |
9307 | ||
9308 | case 's': | |
9309 | switch (name[1]) | |
9310 | { | |
9311 | case 'e': | |
9312 | switch (name[2]) | |
9313 | { | |
9314 | case 'e': | |
9315 | if (name[3] == 'k' && | |
9316 | name[4] == 'd' && | |
9317 | name[5] == 'i' && | |
9318 | name[6] == 'r') | |
9319 | { /* seekdir */ | |
9320 | return -KEY_seekdir; | |
9321 | } | |
9322 | ||
9323 | goto unknown; | |
9324 | ||
9325 | case 't': | |
9326 | if (name[3] == 'p' && | |
9327 | name[4] == 'g' && | |
9328 | name[5] == 'r' && | |
9329 | name[6] == 'p') | |
9330 | { /* setpgrp */ | |
9331 | return -KEY_setpgrp; | |
9332 | } | |
9333 | ||
9334 | goto unknown; | |
9335 | ||
9336 | default: | |
9337 | goto unknown; | |
9338 | } | |
9339 | ||
9340 | case 'h': | |
9341 | if (name[2] == 'm' && | |
9342 | name[3] == 'r' && | |
9343 | name[4] == 'e' && | |
9344 | name[5] == 'a' && | |
9345 | name[6] == 'd') | |
9346 | { /* shmread */ | |
9347 | return -KEY_shmread; | |
9348 | } | |
9349 | ||
9350 | goto unknown; | |
9351 | ||
9352 | case 'p': | |
9353 | if (name[2] == 'r' && | |
9354 | name[3] == 'i' && | |
9355 | name[4] == 'n' && | |
9356 | name[5] == 't' && | |
9357 | name[6] == 'f') | |
9358 | { /* sprintf */ | |
9359 | return -KEY_sprintf; | |
9360 | } | |
9361 | ||
9362 | goto unknown; | |
9363 | ||
9364 | case 'y': | |
9365 | switch (name[2]) | |
9366 | { | |
9367 | case 'm': | |
9368 | if (name[3] == 'l' && | |
9369 | name[4] == 'i' && | |
9370 | name[5] == 'n' && | |
9371 | name[6] == 'k') | |
9372 | { /* symlink */ | |
9373 | return -KEY_symlink; | |
9374 | } | |
9375 | ||
9376 | goto unknown; | |
9377 | ||
9378 | case 's': | |
9379 | switch (name[3]) | |
9380 | { | |
9381 | case 'c': | |
9382 | if (name[4] == 'a' && | |
9383 | name[5] == 'l' && | |
9384 | name[6] == 'l') | |
9385 | { /* syscall */ | |
9386 | return -KEY_syscall; | |
9387 | } | |
9388 | ||
9389 | goto unknown; | |
9390 | ||
9391 | case 'o': | |
9392 | if (name[4] == 'p' && | |
9393 | name[5] == 'e' && | |
9394 | name[6] == 'n') | |
9395 | { /* sysopen */ | |
9396 | return -KEY_sysopen; | |
9397 | } | |
9398 | ||
9399 | goto unknown; | |
9400 | ||
9401 | case 'r': | |
9402 | if (name[4] == 'e' && | |
9403 | name[5] == 'a' && | |
9404 | name[6] == 'd') | |
9405 | { /* sysread */ | |
9406 | return -KEY_sysread; | |
9407 | } | |
9408 | ||
9409 | goto unknown; | |
9410 | ||
9411 | case 's': | |
9412 | if (name[4] == 'e' && | |
9413 | name[5] == 'e' && | |
9414 | name[6] == 'k') | |
9415 | { /* sysseek */ | |
9416 | return -KEY_sysseek; | |
9417 | } | |
9418 | ||
9419 | goto unknown; | |
9420 | ||
9421 | default: | |
9422 | goto unknown; | |
9423 | } | |
9424 | ||
9425 | default: | |
9426 | goto unknown; | |
9427 | } | |
9428 | ||
9429 | default: | |
9430 | goto unknown; | |
9431 | } | |
9432 | ||
9433 | case 't': | |
9434 | if (name[1] == 'e' && | |
9435 | name[2] == 'l' && | |
9436 | name[3] == 'l' && | |
9437 | name[4] == 'd' && | |
9438 | name[5] == 'i' && | |
9439 | name[6] == 'r') | |
9440 | { /* telldir */ | |
9441 | return -KEY_telldir; | |
9442 | } | |
9443 | ||
9444 | goto unknown; | |
9445 | ||
9446 | case 'u': | |
9447 | switch (name[1]) | |
9448 | { | |
9449 | case 'c': | |
9450 | if (name[2] == 'f' && | |
9451 | name[3] == 'i' && | |
9452 | name[4] == 'r' && | |
9453 | name[5] == 's' && | |
9454 | name[6] == 't') | |
9455 | { /* ucfirst */ | |
9456 | return -KEY_ucfirst; | |
9457 | } | |
9458 | ||
9459 | goto unknown; | |
9460 | ||
9461 | case 'n': | |
9462 | if (name[2] == 's' && | |
9463 | name[3] == 'h' && | |
9464 | name[4] == 'i' && | |
9465 | name[5] == 'f' && | |
9466 | name[6] == 't') | |
9467 | { /* unshift */ | |
9468 | return -KEY_unshift; | |
9469 | } | |
9470 | ||
9471 | goto unknown; | |
9472 | ||
9473 | default: | |
9474 | goto unknown; | |
9475 | } | |
9476 | ||
9477 | case 'w': | |
9478 | if (name[1] == 'a' && | |
9479 | name[2] == 'i' && | |
9480 | name[3] == 't' && | |
9481 | name[4] == 'p' && | |
9482 | name[5] == 'i' && | |
9483 | name[6] == 'd') | |
9484 | { /* waitpid */ | |
9485 | return -KEY_waitpid; | |
9486 | } | |
9487 | ||
9488 | goto unknown; | |
9489 | ||
9490 | default: | |
9491 | goto unknown; | |
9492 | } | |
9493 | ||
9494 | case 8: /* 26 tokens of length 8 */ | |
9495 | switch (name[0]) | |
9496 | { | |
9497 | case 'A': | |
9498 | if (name[1] == 'U' && | |
9499 | name[2] == 'T' && | |
9500 | name[3] == 'O' && | |
9501 | name[4] == 'L' && | |
9502 | name[5] == 'O' && | |
9503 | name[6] == 'A' && | |
9504 | name[7] == 'D') | |
9505 | { /* AUTOLOAD */ | |
9506 | return KEY_AUTOLOAD; | |
9507 | } | |
9508 | ||
9509 | goto unknown; | |
9510 | ||
9511 | case '_': | |
9512 | if (name[1] == '_') | |
9513 | { | |
9514 | switch (name[2]) | |
9515 | { | |
9516 | case 'D': | |
9517 | if (name[3] == 'A' && | |
9518 | name[4] == 'T' && | |
9519 | name[5] == 'A' && | |
9520 | name[6] == '_' && | |
9521 | name[7] == '_') | |
9522 | { /* __DATA__ */ | |
9523 | return KEY___DATA__; | |
9524 | } | |
9525 | ||
9526 | goto unknown; | |
9527 | ||
9528 | case 'F': | |
9529 | if (name[3] == 'I' && | |
9530 | name[4] == 'L' && | |
9531 | name[5] == 'E' && | |
9532 | name[6] == '_' && | |
9533 | name[7] == '_') | |
9534 | { /* __FILE__ */ | |
9535 | return -KEY___FILE__; | |
9536 | } | |
9537 | ||
9538 | goto unknown; | |
9539 | ||
9540 | case 'L': | |
9541 | if (name[3] == 'I' && | |
9542 | name[4] == 'N' && | |
9543 | name[5] == 'E' && | |
9544 | name[6] == '_' && | |
9545 | name[7] == '_') | |
9546 | { /* __LINE__ */ | |
9547 | return -KEY___LINE__; | |
9548 | } | |
9549 | ||
9550 | goto unknown; | |
9551 | ||
9552 | default: | |
9553 | goto unknown; | |
9554 | } | |
9555 | } | |
9556 | ||
9557 | goto unknown; | |
9558 | ||
9559 | case 'c': | |
9560 | switch (name[1]) | |
9561 | { | |
9562 | case 'l': | |
9563 | if (name[2] == 'o' && | |
9564 | name[3] == 's' && | |
9565 | name[4] == 'e' && | |
9566 | name[5] == 'd' && | |
9567 | name[6] == 'i' && | |
9568 | name[7] == 'r') | |
9569 | { /* closedir */ | |
9570 | return -KEY_closedir; | |
9571 | } | |
9572 | ||
9573 | goto unknown; | |
9574 | ||
9575 | case 'o': | |
9576 | if (name[2] == 'n' && | |
9577 | name[3] == 't' && | |
9578 | name[4] == 'i' && | |
9579 | name[5] == 'n' && | |
9580 | name[6] == 'u' && | |
9581 | name[7] == 'e') | |
9582 | { /* continue */ | |
9583 | return -KEY_continue; | |
9584 | } | |
9585 | ||
9586 | goto unknown; | |
9587 | ||
9588 | default: | |
9589 | goto unknown; | |
9590 | } | |
9591 | ||
9592 | case 'd': | |
9593 | if (name[1] == 'b' && | |
9594 | name[2] == 'm' && | |
9595 | name[3] == 'c' && | |
9596 | name[4] == 'l' && | |
9597 | name[5] == 'o' && | |
9598 | name[6] == 's' && | |
9599 | name[7] == 'e') | |
9600 | { /* dbmclose */ | |
9601 | return -KEY_dbmclose; | |
9602 | } | |
9603 | ||
9604 | goto unknown; | |
9605 | ||
9606 | case 'e': | |
9607 | if (name[1] == 'n' && | |
9608 | name[2] == 'd') | |
9609 | { | |
9610 | switch (name[3]) | |
9611 | { | |
9612 | case 'g': | |
9613 | if (name[4] == 'r' && | |
9614 | name[5] == 'e' && | |
9615 | name[6] == 'n' && | |
9616 | name[7] == 't') | |
9617 | { /* endgrent */ | |
9618 | return -KEY_endgrent; | |
9619 | } | |
9620 | ||
9621 | goto unknown; | |
9622 | ||
9623 | case 'p': | |
9624 | if (name[4] == 'w' && | |
9625 | name[5] == 'e' && | |
9626 | name[6] == 'n' && | |
9627 | name[7] == 't') | |
9628 | { /* endpwent */ | |
9629 | return -KEY_endpwent; | |
9630 | } | |
9631 | ||
9632 | goto unknown; | |
9633 | ||
9634 | default: | |
9635 | goto unknown; | |
9636 | } | |
9637 | } | |
9638 | ||
9639 | goto unknown; | |
9640 | ||
9641 | case 'f': | |
9642 | if (name[1] == 'o' && | |
9643 | name[2] == 'r' && | |
9644 | name[3] == 'm' && | |
9645 | name[4] == 'l' && | |
9646 | name[5] == 'i' && | |
9647 | name[6] == 'n' && | |
9648 | name[7] == 'e') | |
9649 | { /* formline */ | |
9650 | return -KEY_formline; | |
9651 | } | |
9652 | ||
9653 | goto unknown; | |
9654 | ||
9655 | case 'g': | |
9656 | if (name[1] == 'e' && | |
9657 | name[2] == 't') | |
9658 | { | |
9659 | switch (name[3]) | |
9660 | { | |
9661 | case 'g': | |
9662 | if (name[4] == 'r') | |
9663 | { | |
9664 | switch (name[5]) | |
9665 | { | |
9666 | case 'e': | |
9667 | if (name[6] == 'n' && | |
9668 | name[7] == 't') | |
9669 | { /* getgrent */ | |
9670 | return -KEY_getgrent; | |
9671 | } | |
9672 | ||
9673 | goto unknown; | |
9674 | ||
9675 | case 'g': | |
9676 | if (name[6] == 'i' && | |
9677 | name[7] == 'd') | |
9678 | { /* getgrgid */ | |
9679 | return -KEY_getgrgid; | |
9680 | } | |
9681 | ||
9682 | goto unknown; | |
9683 | ||
9684 | case 'n': | |
9685 | if (name[6] == 'a' && | |
9686 | name[7] == 'm') | |
9687 | { /* getgrnam */ | |
9688 | return -KEY_getgrnam; | |
9689 | } | |
9690 | ||
9691 | goto unknown; | |
9692 | ||
9693 | default: | |
9694 | goto unknown; | |
9695 | } | |
9696 | } | |
9697 | ||
9698 | goto unknown; | |
9699 | ||
9700 | case 'l': | |
9701 | if (name[4] == 'o' && | |
9702 | name[5] == 'g' && | |
9703 | name[6] == 'i' && | |
9704 | name[7] == 'n') | |
9705 | { /* getlogin */ | |
9706 | return -KEY_getlogin; | |
9707 | } | |
9708 | ||
9709 | goto unknown; | |
9710 | ||
9711 | case 'p': | |
9712 | if (name[4] == 'w') | |
9713 | { | |
9714 | switch (name[5]) | |
9715 | { | |
9716 | case 'e': | |
9717 | if (name[6] == 'n' && | |
9718 | name[7] == 't') | |
9719 | { /* getpwent */ | |
9720 | return -KEY_getpwent; | |
9721 | } | |
9722 | ||
9723 | goto unknown; | |
9724 | ||
9725 | case 'n': | |
9726 | if (name[6] == 'a' && | |
9727 | name[7] == 'm') | |
9728 | { /* getpwnam */ | |
9729 | return -KEY_getpwnam; | |
9730 | } | |
9731 | ||
9732 | goto unknown; | |
9733 | ||
9734 | case 'u': | |
9735 | if (name[6] == 'i' && | |
9736 | name[7] == 'd') | |
9737 | { /* getpwuid */ | |
9738 | return -KEY_getpwuid; | |
9739 | } | |
9740 | ||
9741 | goto unknown; | |
9742 | ||
9743 | default: | |
9744 | goto unknown; | |
9745 | } | |
9746 | } | |
9747 | ||
9748 | goto unknown; | |
9749 | ||
9750 | default: | |
9751 | goto unknown; | |
9752 | } | |
9753 | } | |
9754 | ||
9755 | goto unknown; | |
9756 | ||
9757 | case 'r': | |
9758 | if (name[1] == 'e' && | |
9759 | name[2] == 'a' && | |
9760 | name[3] == 'd') | |
9761 | { | |
9762 | switch (name[4]) | |
9763 | { | |
9764 | case 'l': | |
9765 | if (name[5] == 'i' && | |
9766 | name[6] == 'n') | |
9767 | { | |
9768 | switch (name[7]) | |
9769 | { | |
9770 | case 'e': | |
9771 | { /* readline */ | |
9772 | return -KEY_readline; | |
9773 | } | |
9774 | ||
4c3bbe0f MHM |
9775 | case 'k': |
9776 | { /* readlink */ | |
9777 | return -KEY_readlink; | |
9778 | } | |
9779 | ||
4c3bbe0f MHM |
9780 | default: |
9781 | goto unknown; | |
9782 | } | |
9783 | } | |
9784 | ||
9785 | goto unknown; | |
9786 | ||
9787 | case 'p': | |
9788 | if (name[5] == 'i' && | |
9789 | name[6] == 'p' && | |
9790 | name[7] == 'e') | |
9791 | { /* readpipe */ | |
9792 | return -KEY_readpipe; | |
9793 | } | |
9794 | ||
9795 | goto unknown; | |
9796 | ||
9797 | default: | |
9798 | goto unknown; | |
9799 | } | |
9800 | } | |
9801 | ||
9802 | goto unknown; | |
9803 | ||
9804 | case 's': | |
9805 | switch (name[1]) | |
9806 | { | |
9807 | case 'e': | |
9808 | if (name[2] == 't') | |
9809 | { | |
9810 | switch (name[3]) | |
9811 | { | |
9812 | case 'g': | |
9813 | if (name[4] == 'r' && | |
9814 | name[5] == 'e' && | |
9815 | name[6] == 'n' && | |
9816 | name[7] == 't') | |
9817 | { /* setgrent */ | |
9818 | return -KEY_setgrent; | |
9819 | } | |
9820 | ||
9821 | goto unknown; | |
9822 | ||
9823 | case 'p': | |
9824 | if (name[4] == 'w' && | |
9825 | name[5] == 'e' && | |
9826 | name[6] == 'n' && | |
9827 | name[7] == 't') | |
9828 | { /* setpwent */ | |
9829 | return -KEY_setpwent; | |
9830 | } | |
9831 | ||
9832 | goto unknown; | |
9833 | ||
9834 | default: | |
9835 | goto unknown; | |
9836 | } | |
9837 | } | |
9838 | ||
9839 | goto unknown; | |
9840 | ||
9841 | case 'h': | |
9842 | switch (name[2]) | |
9843 | { | |
9844 | case 'm': | |
9845 | if (name[3] == 'w' && | |
9846 | name[4] == 'r' && | |
9847 | name[5] == 'i' && | |
9848 | name[6] == 't' && | |
9849 | name[7] == 'e') | |
9850 | { /* shmwrite */ | |
9851 | return -KEY_shmwrite; | |
9852 | } | |
9853 | ||
9854 | goto unknown; | |
9855 | ||
9856 | case 'u': | |
9857 | if (name[3] == 't' && | |
9858 | name[4] == 'd' && | |
9859 | name[5] == 'o' && | |
9860 | name[6] == 'w' && | |
9861 | name[7] == 'n') | |
9862 | { /* shutdown */ | |
9863 | return -KEY_shutdown; | |
9864 | } | |
9865 | ||
9866 | goto unknown; | |
9867 | ||
9868 | default: | |
9869 | goto unknown; | |
9870 | } | |
9871 | ||
9872 | case 'y': | |
9873 | if (name[2] == 's' && | |
9874 | name[3] == 'w' && | |
9875 | name[4] == 'r' && | |
9876 | name[5] == 'i' && | |
9877 | name[6] == 't' && | |
9878 | name[7] == 'e') | |
9879 | { /* syswrite */ | |
9880 | return -KEY_syswrite; | |
9881 | } | |
9882 | ||
9883 | goto unknown; | |
9884 | ||
9885 | default: | |
9886 | goto unknown; | |
9887 | } | |
9888 | ||
9889 | case 't': | |
9890 | if (name[1] == 'r' && | |
9891 | name[2] == 'u' && | |
9892 | name[3] == 'n' && | |
9893 | name[4] == 'c' && | |
9894 | name[5] == 'a' && | |
9895 | name[6] == 't' && | |
9896 | name[7] == 'e') | |
9897 | { /* truncate */ | |
9898 | return -KEY_truncate; | |
9899 | } | |
9900 | ||
9901 | goto unknown; | |
9902 | ||
9903 | default: | |
9904 | goto unknown; | |
9905 | } | |
9906 | ||
3c10abe3 | 9907 | case 9: /* 9 tokens of length 9 */ |
4c3bbe0f MHM |
9908 | switch (name[0]) |
9909 | { | |
3c10abe3 AG |
9910 | case 'U': |
9911 | if (name[1] == 'N' && | |
9912 | name[2] == 'I' && | |
9913 | name[3] == 'T' && | |
9914 | name[4] == 'C' && | |
9915 | name[5] == 'H' && | |
9916 | name[6] == 'E' && | |
9917 | name[7] == 'C' && | |
9918 | name[8] == 'K') | |
9919 | { /* UNITCHECK */ | |
9920 | return KEY_UNITCHECK; | |
9921 | } | |
9922 | ||
9923 | goto unknown; | |
9924 | ||
4c3bbe0f MHM |
9925 | case 'e': |
9926 | if (name[1] == 'n' && | |
9927 | name[2] == 'd' && | |
9928 | name[3] == 'n' && | |
9929 | name[4] == 'e' && | |
9930 | name[5] == 't' && | |
9931 | name[6] == 'e' && | |
9932 | name[7] == 'n' && | |
9933 | name[8] == 't') | |
9934 | { /* endnetent */ | |
9935 | return -KEY_endnetent; | |
9936 | } | |
9937 | ||
9938 | goto unknown; | |
9939 | ||
9940 | case 'g': | |
9941 | if (name[1] == 'e' && | |
9942 | name[2] == 't' && | |
9943 | name[3] == 'n' && | |
9944 | name[4] == 'e' && | |
9945 | name[5] == 't' && | |
9946 | name[6] == 'e' && | |
9947 | name[7] == 'n' && | |
9948 | name[8] == 't') | |
9949 | { /* getnetent */ | |
9950 | return -KEY_getnetent; | |
9951 | } | |
9952 | ||
9953 | goto unknown; | |
9954 | ||
9955 | case 'l': | |
9956 | if (name[1] == 'o' && | |
9957 | name[2] == 'c' && | |
9958 | name[3] == 'a' && | |
9959 | name[4] == 'l' && | |
9960 | name[5] == 't' && | |
9961 | name[6] == 'i' && | |
9962 | name[7] == 'm' && | |
9963 | name[8] == 'e') | |
9964 | { /* localtime */ | |
9965 | return -KEY_localtime; | |
9966 | } | |
9967 | ||
9968 | goto unknown; | |
9969 | ||
9970 | case 'p': | |
9971 | if (name[1] == 'r' && | |
9972 | name[2] == 'o' && | |
9973 | name[3] == 't' && | |
9974 | name[4] == 'o' && | |
9975 | name[5] == 't' && | |
9976 | name[6] == 'y' && | |
9977 | name[7] == 'p' && | |
9978 | name[8] == 'e') | |
9979 | { /* prototype */ | |
9980 | return KEY_prototype; | |
9981 | } | |
9982 | ||
9983 | goto unknown; | |
9984 | ||
9985 | case 'q': | |
9986 | if (name[1] == 'u' && | |
9987 | name[2] == 'o' && | |
9988 | name[3] == 't' && | |
9989 | name[4] == 'e' && | |
9990 | name[5] == 'm' && | |
9991 | name[6] == 'e' && | |
9992 | name[7] == 't' && | |
9993 | name[8] == 'a') | |
9994 | { /* quotemeta */ | |
9995 | return -KEY_quotemeta; | |
9996 | } | |
9997 | ||
9998 | goto unknown; | |
9999 | ||
10000 | case 'r': | |
10001 | if (name[1] == 'e' && | |
10002 | name[2] == 'w' && | |
10003 | name[3] == 'i' && | |
10004 | name[4] == 'n' && | |
10005 | name[5] == 'd' && | |
10006 | name[6] == 'd' && | |
10007 | name[7] == 'i' && | |
10008 | name[8] == 'r') | |
10009 | { /* rewinddir */ | |
10010 | return -KEY_rewinddir; | |
10011 | } | |
10012 | ||
10013 | goto unknown; | |
10014 | ||
10015 | case 's': | |
10016 | if (name[1] == 'e' && | |
10017 | name[2] == 't' && | |
10018 | name[3] == 'n' && | |
10019 | name[4] == 'e' && | |
10020 | name[5] == 't' && | |
10021 | name[6] == 'e' && | |
10022 | name[7] == 'n' && | |
10023 | name[8] == 't') | |
10024 | { /* setnetent */ | |
10025 | return -KEY_setnetent; | |
10026 | } | |
10027 | ||
10028 | goto unknown; | |
10029 | ||
10030 | case 'w': | |
10031 | if (name[1] == 'a' && | |
10032 | name[2] == 'n' && | |
10033 | name[3] == 't' && | |
10034 | name[4] == 'a' && | |
10035 | name[5] == 'r' && | |
10036 | name[6] == 'r' && | |
10037 | name[7] == 'a' && | |
10038 | name[8] == 'y') | |
10039 | { /* wantarray */ | |
10040 | return -KEY_wantarray; | |
10041 | } | |
10042 | ||
10043 | goto unknown; | |
10044 | ||
10045 | default: | |
10046 | goto unknown; | |
10047 | } | |
10048 | ||
10049 | case 10: /* 9 tokens of length 10 */ | |
10050 | switch (name[0]) | |
10051 | { | |
10052 | case 'e': | |
10053 | if (name[1] == 'n' && | |
10054 | name[2] == 'd') | |
10055 | { | |
10056 | switch (name[3]) | |
10057 | { | |
10058 | case 'h': | |
10059 | if (name[4] == 'o' && | |
10060 | name[5] == 's' && | |
10061 | name[6] == 't' && | |
10062 | name[7] == 'e' && | |
10063 | name[8] == 'n' && | |
10064 | name[9] == 't') | |
10065 | { /* endhostent */ | |
10066 | return -KEY_endhostent; | |
10067 | } | |
10068 | ||
10069 | goto unknown; | |
10070 | ||
10071 | case 's': | |
10072 | if (name[4] == 'e' && | |
10073 | name[5] == 'r' && | |
10074 | name[6] == 'v' && | |
10075 | name[7] == 'e' && | |
10076 | name[8] == 'n' && | |
10077 | name[9] == 't') | |
10078 | { /* endservent */ | |
10079 | return -KEY_endservent; | |
10080 | } | |
10081 | ||
10082 | goto unknown; | |
10083 | ||
10084 | default: | |
10085 | goto unknown; | |
10086 | } | |
10087 | } | |
10088 | ||
10089 | goto unknown; | |
10090 | ||
10091 | case 'g': | |
10092 | if (name[1] == 'e' && | |
10093 | name[2] == 't') | |
10094 | { | |
10095 | switch (name[3]) | |
10096 | { | |
10097 | case 'h': | |
10098 | if (name[4] == 'o' && | |
10099 | name[5] == 's' && | |
10100 | name[6] == 't' && | |
10101 | name[7] == 'e' && | |
10102 | name[8] == 'n' && | |
10103 | name[9] == 't') | |
10104 | { /* gethostent */ | |
10105 | return -KEY_gethostent; | |
10106 | } | |
10107 | ||
10108 | goto unknown; | |
10109 | ||
10110 | case 's': | |
10111 | switch (name[4]) | |
10112 | { | |
10113 | case 'e': | |
10114 | if (name[5] == 'r' && | |
10115 | name[6] == 'v' && | |
10116 | name[7] == 'e' && | |
10117 | name[8] == 'n' && | |
10118 | name[9] == 't') | |
10119 | { /* getservent */ | |
10120 | return -KEY_getservent; | |
10121 | } | |
10122 | ||
10123 | goto unknown; | |
10124 | ||
10125 | case 'o': | |
10126 | if (name[5] == 'c' && | |
10127 | name[6] == 'k' && | |
10128 | name[7] == 'o' && | |
10129 | name[8] == 'p' && | |
10130 | name[9] == 't') | |
10131 | { /* getsockopt */ | |
10132 | return -KEY_getsockopt; | |
10133 | } | |
10134 | ||
10135 | goto unknown; | |
10136 | ||
10137 | default: | |
10138 | goto unknown; | |
10139 | } | |
10140 | ||
10141 | default: | |
10142 | goto unknown; | |
10143 | } | |
10144 | } | |
10145 | ||
10146 | goto unknown; | |
10147 | ||
10148 | case 's': | |
10149 | switch (name[1]) | |
10150 | { | |
10151 | case 'e': | |
10152 | if (name[2] == 't') | |
10153 | { | |
10154 | switch (name[3]) | |
10155 | { | |
10156 | case 'h': | |
10157 | if (name[4] == 'o' && | |
10158 | name[5] == 's' && | |
10159 | name[6] == 't' && | |
10160 | name[7] == 'e' && | |
10161 | name[8] == 'n' && | |
10162 | name[9] == 't') | |
10163 | { /* sethostent */ | |
10164 | return -KEY_sethostent; | |
10165 | } | |
10166 | ||
10167 | goto unknown; | |
10168 | ||
10169 | case 's': | |
10170 | switch (name[4]) | |
10171 | { | |
10172 | case 'e': | |
10173 | if (name[5] == 'r' && | |
10174 | name[6] == 'v' && | |
10175 | name[7] == 'e' && | |
10176 | name[8] == 'n' && | |
10177 | name[9] == 't') | |
10178 | { /* setservent */ | |
10179 | return -KEY_setservent; | |
10180 | } | |
10181 | ||
10182 | goto unknown; | |
10183 | ||
10184 | case 'o': | |
10185 | if (name[5] == 'c' && | |
10186 | name[6] == 'k' && | |
10187 | name[7] == 'o' && | |
10188 | name[8] == 'p' && | |
10189 | name[9] == 't') | |
10190 | { /* setsockopt */ | |
10191 | return -KEY_setsockopt; | |
10192 | } | |
10193 | ||
10194 | goto unknown; | |
10195 | ||
10196 | default: | |
10197 | goto unknown; | |
10198 | } | |
10199 | ||
10200 | default: | |
10201 | goto unknown; | |
10202 | } | |
10203 | } | |
10204 | ||
10205 | goto unknown; | |
10206 | ||
10207 | case 'o': | |
10208 | if (name[2] == 'c' && | |
10209 | name[3] == 'k' && | |
10210 | name[4] == 'e' && | |
10211 | name[5] == 't' && | |
10212 | name[6] == 'p' && | |
10213 | name[7] == 'a' && | |
10214 | name[8] == 'i' && | |
10215 | name[9] == 'r') | |
10216 | { /* socketpair */ | |
10217 | return -KEY_socketpair; | |
10218 | } | |
10219 | ||
10220 | goto unknown; | |
10221 | ||
10222 | default: | |
10223 | goto unknown; | |
10224 | } | |
10225 | ||
10226 | default: | |
10227 | goto unknown; | |
e2e1dd5a | 10228 | } |
4c3bbe0f MHM |
10229 | |
10230 | case 11: /* 8 tokens of length 11 */ | |
10231 | switch (name[0]) | |
10232 | { | |
10233 | case '_': | |
10234 | if (name[1] == '_' && | |
10235 | name[2] == 'P' && | |
10236 | name[3] == 'A' && | |
10237 | name[4] == 'C' && | |
10238 | name[5] == 'K' && | |
10239 | name[6] == 'A' && | |
10240 | name[7] == 'G' && | |
10241 | name[8] == 'E' && | |
10242 | name[9] == '_' && | |
10243 | name[10] == '_') | |
10244 | { /* __PACKAGE__ */ | |
10245 | return -KEY___PACKAGE__; | |
10246 | } | |
10247 | ||
10248 | goto unknown; | |
10249 | ||
10250 | case 'e': | |
10251 | if (name[1] == 'n' && | |
10252 | name[2] == 'd' && | |
10253 | name[3] == 'p' && | |
10254 | name[4] == 'r' && | |
10255 | name[5] == 'o' && | |
10256 | name[6] == 't' && | |
10257 | name[7] == 'o' && | |
10258 | name[8] == 'e' && | |
10259 | name[9] == 'n' && | |
10260 | name[10] == 't') | |
10261 | { /* endprotoent */ | |
10262 | return -KEY_endprotoent; | |
10263 | } | |
10264 | ||
10265 | goto unknown; | |
10266 | ||
10267 | case 'g': | |
10268 | if (name[1] == 'e' && | |
10269 | name[2] == 't') | |
10270 | { | |
10271 | switch (name[3]) | |
10272 | { | |
10273 | case 'p': | |
10274 | switch (name[4]) | |
10275 | { | |
10276 | case 'e': | |
10277 | if (name[5] == 'e' && | |
10278 | name[6] == 'r' && | |
10279 | name[7] == 'n' && | |
10280 | name[8] == 'a' && | |
10281 | name[9] == 'm' && | |
10282 | name[10] == 'e') | |
10283 | { /* getpeername */ | |
10284 | return -KEY_getpeername; | |
10285 | } | |
10286 | ||
10287 | goto unknown; | |
10288 | ||
10289 | case 'r': | |
10290 | switch (name[5]) | |
10291 | { | |
10292 | case 'i': | |
10293 | if (name[6] == 'o' && | |
10294 | name[7] == 'r' && | |
10295 | name[8] == 'i' && | |
10296 | name[9] == 't' && | |
10297 | name[10] == 'y') | |
10298 | { /* getpriority */ | |
10299 | return -KEY_getpriority; | |
10300 | } | |
10301 | ||
10302 | goto unknown; | |
10303 | ||
10304 | case 'o': | |
10305 | if (name[6] == 't' && | |
10306 | name[7] == 'o' && | |
10307 | name[8] == 'e' && | |
10308 | name[9] == 'n' && | |
10309 | name[10] == 't') | |
10310 | { /* getprotoent */ | |
10311 | return -KEY_getprotoent; | |
10312 | } | |
10313 | ||
10314 | goto unknown; | |
10315 | ||
10316 | default: | |
10317 | goto unknown; | |
10318 | } | |
10319 | ||
10320 | default: | |
10321 | goto unknown; | |
10322 | } | |
10323 | ||
10324 | case 's': | |
10325 | if (name[4] == 'o' && | |
10326 | name[5] == 'c' && | |
10327 | name[6] == 'k' && | |
10328 | name[7] == 'n' && | |
10329 | name[8] == 'a' && | |
10330 | name[9] == 'm' && | |
10331 | name[10] == 'e') | |
10332 | { /* getsockname */ | |
10333 | return -KEY_getsockname; | |
10334 | } | |
10335 | ||
10336 | goto unknown; | |
10337 | ||
10338 | default: | |
10339 | goto unknown; | |
10340 | } | |
10341 | } | |
10342 | ||
10343 | goto unknown; | |
10344 | ||
10345 | case 's': | |
10346 | if (name[1] == 'e' && | |
10347 | name[2] == 't' && | |
10348 | name[3] == 'p' && | |
10349 | name[4] == 'r') | |
10350 | { | |
10351 | switch (name[5]) | |
10352 | { | |
10353 | case 'i': | |
10354 | if (name[6] == 'o' && | |
10355 | name[7] == 'r' && | |
10356 | name[8] == 'i' && | |
10357 | name[9] == 't' && | |
10358 | name[10] == 'y') | |
10359 | { /* setpriority */ | |
10360 | return -KEY_setpriority; | |
10361 | } | |
10362 | ||
10363 | goto unknown; | |
10364 | ||
10365 | case 'o': | |
10366 | if (name[6] == 't' && | |
10367 | name[7] == 'o' && | |
10368 | name[8] == 'e' && | |
10369 | name[9] == 'n' && | |
10370 | name[10] == 't') | |
10371 | { /* setprotoent */ | |
10372 | return -KEY_setprotoent; | |
10373 | } | |
10374 | ||
10375 | goto unknown; | |
10376 | ||
10377 | default: | |
10378 | goto unknown; | |
10379 | } | |
10380 | } | |
10381 | ||
10382 | goto unknown; | |
10383 | ||
10384 | default: | |
10385 | goto unknown; | |
e2e1dd5a | 10386 | } |
4c3bbe0f MHM |
10387 | |
10388 | case 12: /* 2 tokens of length 12 */ | |
10389 | if (name[0] == 'g' && | |
10390 | name[1] == 'e' && | |
10391 | name[2] == 't' && | |
10392 | name[3] == 'n' && | |
10393 | name[4] == 'e' && | |
10394 | name[5] == 't' && | |
10395 | name[6] == 'b' && | |
10396 | name[7] == 'y') | |
10397 | { | |
10398 | switch (name[8]) | |
10399 | { | |
10400 | case 'a': | |
10401 | if (name[9] == 'd' && | |
10402 | name[10] == 'd' && | |
10403 | name[11] == 'r') | |
10404 | { /* getnetbyaddr */ | |
10405 | return -KEY_getnetbyaddr; | |
10406 | } | |
10407 | ||
10408 | goto unknown; | |
10409 | ||
10410 | case 'n': | |
10411 | if (name[9] == 'a' && | |
10412 | name[10] == 'm' && | |
10413 | name[11] == 'e') | |
10414 | { /* getnetbyname */ | |
10415 | return -KEY_getnetbyname; | |
10416 | } | |
10417 | ||
10418 | goto unknown; | |
10419 | ||
10420 | default: | |
10421 | goto unknown; | |
10422 | } | |
e2e1dd5a | 10423 | } |
4c3bbe0f MHM |
10424 | |
10425 | goto unknown; | |
10426 | ||
10427 | case 13: /* 4 tokens of length 13 */ | |
10428 | if (name[0] == 'g' && | |
10429 | name[1] == 'e' && | |
10430 | name[2] == 't') | |
10431 | { | |
10432 | switch (name[3]) | |
10433 | { | |
10434 | case 'h': | |
10435 | if (name[4] == 'o' && | |
10436 | name[5] == 's' && | |
10437 | name[6] == 't' && | |
10438 | name[7] == 'b' && | |
10439 | name[8] == 'y') | |
10440 | { | |
10441 | switch (name[9]) | |
10442 | { | |
10443 | case 'a': | |
10444 | if (name[10] == 'd' && | |
10445 | name[11] == 'd' && | |
10446 | name[12] == 'r') | |
10447 | { /* gethostbyaddr */ | |
10448 | return -KEY_gethostbyaddr; | |
10449 | } | |
10450 | ||
10451 | goto unknown; | |
10452 | ||
10453 | case 'n': | |
10454 | if (name[10] == 'a' && | |
10455 | name[11] == 'm' && | |
10456 | name[12] == 'e') | |
10457 | { /* gethostbyname */ | |
10458 | return -KEY_gethostbyname; | |
10459 | } | |
10460 | ||
10461 | goto unknown; | |
10462 | ||
10463 | default: | |
10464 | goto unknown; | |
10465 | } | |
10466 | } | |
10467 | ||
10468 | goto unknown; | |
10469 | ||
10470 | case 's': | |
10471 | if (name[4] == 'e' && | |
10472 | name[5] == 'r' && | |
10473 | name[6] == 'v' && | |
10474 | name[7] == 'b' && | |
10475 | name[8] == 'y') | |
10476 | { | |
10477 | switch (name[9]) | |
10478 | { | |
10479 | case 'n': | |
10480 | if (name[10] == 'a' && | |
10481 | name[11] == 'm' && | |
10482 | name[12] == 'e') | |
10483 | { /* getservbyname */ | |
10484 | return -KEY_getservbyname; | |
10485 | } | |
10486 | ||
10487 | goto unknown; | |
10488 | ||
10489 | case 'p': | |
10490 | if (name[10] == 'o' && | |
10491 | name[11] == 'r' && | |
10492 | name[12] == 't') | |
10493 | { /* getservbyport */ | |
10494 | return -KEY_getservbyport; | |
10495 | } | |
10496 | ||
10497 | goto unknown; | |
10498 | ||
10499 | default: | |
10500 | goto unknown; | |
10501 | } | |
10502 | } | |
10503 | ||
10504 | goto unknown; | |
10505 | ||
10506 | default: | |
10507 | goto unknown; | |
10508 | } | |
e2e1dd5a | 10509 | } |
4c3bbe0f MHM |
10510 | |
10511 | goto unknown; | |
10512 | ||
10513 | case 14: /* 1 tokens of length 14 */ | |
10514 | if (name[0] == 'g' && | |
10515 | name[1] == 'e' && | |
10516 | name[2] == 't' && | |
10517 | name[3] == 'p' && | |
10518 | name[4] == 'r' && | |
10519 | name[5] == 'o' && | |
10520 | name[6] == 't' && | |
10521 | name[7] == 'o' && | |
10522 | name[8] == 'b' && | |
10523 | name[9] == 'y' && | |
10524 | name[10] == 'n' && | |
10525 | name[11] == 'a' && | |
10526 | name[12] == 'm' && | |
10527 | name[13] == 'e') | |
10528 | { /* getprotobyname */ | |
10529 | return -KEY_getprotobyname; | |
10530 | } | |
10531 | ||
10532 | goto unknown; | |
10533 | ||
10534 | case 16: /* 1 tokens of length 16 */ | |
10535 | if (name[0] == 'g' && | |
10536 | name[1] == 'e' && | |
10537 | name[2] == 't' && | |
10538 | name[3] == 'p' && | |
10539 | name[4] == 'r' && | |
10540 | name[5] == 'o' && | |
10541 | name[6] == 't' && | |
10542 | name[7] == 'o' && | |
10543 | name[8] == 'b' && | |
10544 | name[9] == 'y' && | |
10545 | name[10] == 'n' && | |
10546 | name[11] == 'u' && | |
10547 | name[12] == 'm' && | |
10548 | name[13] == 'b' && | |
10549 | name[14] == 'e' && | |
10550 | name[15] == 'r') | |
10551 | { /* getprotobynumber */ | |
10552 | return -KEY_getprotobynumber; | |
10553 | } | |
10554 | ||
10555 | goto unknown; | |
10556 | ||
10557 | default: | |
10558 | goto unknown; | |
e2e1dd5a | 10559 | } |
4c3bbe0f MHM |
10560 | |
10561 | unknown: | |
e2e1dd5a | 10562 | return 0; |
a687059c LW |
10563 | } |
10564 | ||
76e3520e | 10565 | STATIC void |
c94115d8 | 10566 | S_checkcomma(pTHX_ const char *s, const char *name, const char *what) |
a687059c | 10567 | { |
97aff369 | 10568 | dVAR; |
2f3197b3 | 10569 | |
7918f24d NC |
10570 | PERL_ARGS_ASSERT_CHECKCOMMA; |
10571 | ||
d008e5eb | 10572 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
10573 | if (ckWARN(WARN_SYNTAX)) { |
10574 | int level = 1; | |
26ff0806 | 10575 | const char *w; |
d008e5eb GS |
10576 | for (w = s+2; *w && level; w++) { |
10577 | if (*w == '(') | |
10578 | ++level; | |
10579 | else if (*w == ')') | |
10580 | --level; | |
10581 | } | |
888fea98 NC |
10582 | while (isSPACE(*w)) |
10583 | ++w; | |
b1439985 RGS |
10584 | /* the list of chars below is for end of statements or |
10585 | * block / parens, boolean operators (&&, ||, //) and branch | |
10586 | * constructs (or, and, if, until, unless, while, err, for). | |
10587 | * Not a very solid hack... */ | |
10588 | if (!*w || !strchr(";&/|})]oaiuwef!=", *w)) | |
9014280d | 10589 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 10590 | "%s (...) interpreted as function",name); |
d008e5eb | 10591 | } |
2f3197b3 | 10592 | } |
3280af22 | 10593 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 10594 | s++; |
a687059c LW |
10595 | if (*s == '(') |
10596 | s++; | |
3280af22 | 10597 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10598 | s++; |
7e2040f0 | 10599 | if (isIDFIRST_lazy_if(s,UTF)) { |
26ff0806 | 10600 | const char * const w = s++; |
7e2040f0 | 10601 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 10602 | s++; |
3280af22 | 10603 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10604 | s++; |
e929a76b | 10605 | if (*s == ',') { |
c94115d8 | 10606 | GV* gv; |
5458a98a | 10607 | if (keyword(w, s - w, 0)) |
e929a76b | 10608 | return; |
c94115d8 NC |
10609 | |
10610 | gv = gv_fetchpvn_flags(w, s - w, 0, SVt_PVCV); | |
10611 | if (gv && GvCVu(gv)) | |
abbb3198 | 10612 | return; |
cea2e8a9 | 10613 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
10614 | } |
10615 | } | |
10616 | } | |
10617 | ||
423cee85 JH |
10618 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
10619 | Best used as sv=new_constant(..., sv, ...). | |
10620 | If s, pv are NULL, calls subroutine with one argument, | |
10621 | and type is used with error messages only. */ | |
10622 | ||
b3ac6de7 | 10623 | STATIC SV * |
eb0d8d16 NC |
10624 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, STRLEN keylen, |
10625 | SV *sv, SV *pv, const char *type, STRLEN typelen) | |
b3ac6de7 | 10626 | { |
27da23d5 | 10627 | dVAR; dSP; |
890ce7af | 10628 | HV * const table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 10629 | SV *res; |
b3ac6de7 IZ |
10630 | SV **cvp; |
10631 | SV *cv, *typesv; | |
89e33a05 | 10632 | const char *why1 = "", *why2 = "", *why3 = ""; |
4e553d73 | 10633 | |
7918f24d NC |
10634 | PERL_ARGS_ASSERT_NEW_CONSTANT; |
10635 | ||
f0af216f | 10636 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
10637 | SV *msg; |
10638 | ||
10edeb5d JH |
10639 | why2 = (const char *) |
10640 | (strEQ(key,"charnames") | |
10641 | ? "(possibly a missing \"use charnames ...\")" | |
10642 | : ""); | |
4e553d73 | 10643 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
10644 | (type ? type: "undef"), why2); |
10645 | ||
10646 | /* This is convoluted and evil ("goto considered harmful") | |
10647 | * but I do not understand the intricacies of all the different | |
10648 | * failure modes of %^H in here. The goal here is to make | |
10649 | * the most probable error message user-friendly. --jhi */ | |
10650 | ||
10651 | goto msgdone; | |
10652 | ||
423cee85 | 10653 | report: |
4e553d73 | 10654 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 10655 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 10656 | msgdone: |
95a20fc0 | 10657 | yyerror(SvPVX_const(msg)); |
423cee85 JH |
10658 | SvREFCNT_dec(msg); |
10659 | return sv; | |
10660 | } | |
eb0d8d16 | 10661 | cvp = hv_fetch(table, key, keylen, FALSE); |
b3ac6de7 | 10662 | if (!cvp || !SvOK(*cvp)) { |
423cee85 JH |
10663 | why1 = "$^H{"; |
10664 | why2 = key; | |
f0af216f | 10665 | why3 = "} is not defined"; |
423cee85 | 10666 | goto report; |
b3ac6de7 IZ |
10667 | } |
10668 | sv_2mortal(sv); /* Parent created it permanently */ | |
10669 | cv = *cvp; | |
423cee85 | 10670 | if (!pv && s) |
59cd0e26 | 10671 | pv = newSVpvn_flags(s, len, SVs_TEMP); |
423cee85 | 10672 | if (type && pv) |
59cd0e26 | 10673 | typesv = newSVpvn_flags(type, typelen, SVs_TEMP); |
b3ac6de7 | 10674 | else |
423cee85 | 10675 | typesv = &PL_sv_undef; |
4e553d73 | 10676 | |
e788e7d3 | 10677 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
10678 | ENTER ; |
10679 | SAVETMPS; | |
4e553d73 | 10680 | |
423cee85 | 10681 | PUSHMARK(SP) ; |
a5845cb7 | 10682 | EXTEND(sp, 3); |
423cee85 JH |
10683 | if (pv) |
10684 | PUSHs(pv); | |
b3ac6de7 | 10685 | PUSHs(sv); |
423cee85 JH |
10686 | if (pv) |
10687 | PUSHs(typesv); | |
b3ac6de7 | 10688 | PUTBACK; |
423cee85 | 10689 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 10690 | |
423cee85 | 10691 | SPAGAIN ; |
4e553d73 | 10692 | |
423cee85 | 10693 | /* Check the eval first */ |
9b0e499b | 10694 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
396482e1 | 10695 | sv_catpvs(ERRSV, "Propagated"); |
8b6b16e7 | 10696 | yyerror(SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */ |
e1f15930 | 10697 | (void)POPs; |
b37c2d43 | 10698 | res = SvREFCNT_inc_simple(sv); |
423cee85 JH |
10699 | } |
10700 | else { | |
10701 | res = POPs; | |
b37c2d43 | 10702 | SvREFCNT_inc_simple_void(res); |
423cee85 | 10703 | } |
4e553d73 | 10704 | |
423cee85 JH |
10705 | PUTBACK ; |
10706 | FREETMPS ; | |
10707 | LEAVE ; | |
b3ac6de7 | 10708 | POPSTACK; |
4e553d73 | 10709 | |
b3ac6de7 | 10710 | if (!SvOK(res)) { |
423cee85 JH |
10711 | why1 = "Call to &{$^H{"; |
10712 | why2 = key; | |
f0af216f | 10713 | why3 = "}} did not return a defined value"; |
423cee85 JH |
10714 | sv = res; |
10715 | goto report; | |
9b0e499b | 10716 | } |
423cee85 | 10717 | |
9b0e499b | 10718 | return res; |
b3ac6de7 | 10719 | } |
4e553d73 | 10720 | |
d0a148a6 NC |
10721 | /* Returns a NUL terminated string, with the length of the string written to |
10722 | *slp | |
10723 | */ | |
76e3520e | 10724 | STATIC char * |
cea2e8a9 | 10725 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 | 10726 | { |
97aff369 | 10727 | dVAR; |
463ee0b2 | 10728 | register char *d = dest; |
890ce7af | 10729 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
7918f24d NC |
10730 | |
10731 | PERL_ARGS_ASSERT_SCAN_WORD; | |
10732 | ||
463ee0b2 | 10733 | for (;;) { |
8903cb82 | 10734 | if (d >= e) |
cea2e8a9 | 10735 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10736 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10737 | *d++ = *s++; |
c35e046a | 10738 | else if (allow_package && (*s == '\'') && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10739 | *d++ = ':'; |
10740 | *d++ = ':'; | |
10741 | s++; | |
10742 | } | |
c35e046a | 10743 | else if (allow_package && (s[0] == ':') && (s[1] == ':') && (s[2] != '$')) { |
463ee0b2 LW |
10744 | *d++ = *s++; |
10745 | *d++ = *s++; | |
10746 | } | |
fd400ab9 | 10747 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10748 | char *t = s + UTF8SKIP(s); |
c35e046a | 10749 | size_t len; |
fd400ab9 | 10750 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 | 10751 | t += UTF8SKIP(t); |
c35e046a AL |
10752 | len = t - s; |
10753 | if (d + len > e) | |
cea2e8a9 | 10754 | Perl_croak(aTHX_ ident_too_long); |
c35e046a AL |
10755 | Copy(s, d, len, char); |
10756 | d += len; | |
a0ed51b3 LW |
10757 | s = t; |
10758 | } | |
463ee0b2 LW |
10759 | else { |
10760 | *d = '\0'; | |
10761 | *slp = d - dest; | |
10762 | return s; | |
e929a76b | 10763 | } |
378cc40b LW |
10764 | } |
10765 | } | |
10766 | ||
76e3520e | 10767 | STATIC char * |
f54cb97a | 10768 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b | 10769 | { |
97aff369 | 10770 | dVAR; |
6136c704 | 10771 | char *bracket = NULL; |
748a9306 | 10772 | char funny = *s++; |
6136c704 AL |
10773 | register char *d = dest; |
10774 | register char * const e = d + destlen + 3; /* two-character token, ending NUL */ | |
378cc40b | 10775 | |
7918f24d NC |
10776 | PERL_ARGS_ASSERT_SCAN_IDENT; |
10777 | ||
a0d0e21e | 10778 | if (isSPACE(*s)) |
29595ff2 | 10779 | s = PEEKSPACE(s); |
de3bb511 | 10780 | if (isDIGIT(*s)) { |
8903cb82 | 10781 | while (isDIGIT(*s)) { |
10782 | if (d >= e) | |
cea2e8a9 | 10783 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 10784 | *d++ = *s++; |
8903cb82 | 10785 | } |
378cc40b LW |
10786 | } |
10787 | else { | |
463ee0b2 | 10788 | for (;;) { |
8903cb82 | 10789 | if (d >= e) |
cea2e8a9 | 10790 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10791 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10792 | *d++ = *s++; |
7e2040f0 | 10793 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10794 | *d++ = ':'; |
10795 | *d++ = ':'; | |
10796 | s++; | |
10797 | } | |
a0d0e21e | 10798 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
10799 | *d++ = *s++; |
10800 | *d++ = *s++; | |
10801 | } | |
fd400ab9 | 10802 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10803 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 10804 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
10805 | t += UTF8SKIP(t); |
10806 | if (d + (t - s) > e) | |
cea2e8a9 | 10807 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
10808 | Copy(s, d, t - s, char); |
10809 | d += t - s; | |
10810 | s = t; | |
10811 | } | |
463ee0b2 LW |
10812 | else |
10813 | break; | |
10814 | } | |
378cc40b LW |
10815 | } |
10816 | *d = '\0'; | |
10817 | d = dest; | |
79072805 | 10818 | if (*d) { |
3280af22 NIS |
10819 | if (PL_lex_state != LEX_NORMAL) |
10820 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 10821 | return s; |
378cc40b | 10822 | } |
748a9306 | 10823 | if (*s == '$' && s[1] && |
3792a11b | 10824 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 10825 | { |
4810e5ec | 10826 | return s; |
5cd24f17 | 10827 | } |
79072805 LW |
10828 | if (*s == '{') { |
10829 | bracket = s; | |
10830 | s++; | |
10831 | } | |
10832 | else if (ck_uni) | |
10833 | check_uni(); | |
93a17b20 | 10834 | if (s < send) |
79072805 LW |
10835 | *d = *s++; |
10836 | d[1] = '\0'; | |
2b92dfce | 10837 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 10838 | *d = toCTRL(*s); |
10839 | s++; | |
de3bb511 | 10840 | } |
79072805 | 10841 | if (bracket) { |
748a9306 | 10842 | if (isSPACE(s[-1])) { |
fa83b5b6 | 10843 | while (s < send) { |
f54cb97a | 10844 | const char ch = *s++; |
bf4acbe4 | 10845 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 10846 | *d = ch; |
10847 | break; | |
10848 | } | |
10849 | } | |
748a9306 | 10850 | } |
7e2040f0 | 10851 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 10852 | d++; |
a0ed51b3 | 10853 | if (UTF) { |
6136c704 AL |
10854 | char *end = s; |
10855 | while ((end < send && isALNUM_lazy_if(end,UTF)) || *end == ':') { | |
10856 | end += UTF8SKIP(end); | |
10857 | while (end < send && UTF8_IS_CONTINUED(*end) && is_utf8_mark((U8*)end)) | |
10858 | end += UTF8SKIP(end); | |
a0ed51b3 | 10859 | } |
6136c704 AL |
10860 | Copy(s, d, end - s, char); |
10861 | d += end - s; | |
10862 | s = end; | |
a0ed51b3 LW |
10863 | } |
10864 | else { | |
2b92dfce | 10865 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 10866 | *d++ = *s++; |
2b92dfce | 10867 | if (d >= e) |
cea2e8a9 | 10868 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 10869 | } |
79072805 | 10870 | *d = '\0'; |
c35e046a AL |
10871 | while (s < send && SPACE_OR_TAB(*s)) |
10872 | s++; | |
ff68c719 | 10873 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
5458a98a | 10874 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest, 0)) { |
10edeb5d JH |
10875 | const char * const brack = |
10876 | (const char *) | |
10877 | ((*s == '[') ? "[...]" : "{...}"); | |
9014280d | 10878 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 10879 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
10880 | funny, dest, brack, funny, dest, brack); |
10881 | } | |
79072805 | 10882 | bracket++; |
a0be28da | 10883 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
10884 | return s; |
10885 | } | |
4e553d73 NIS |
10886 | } |
10887 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
10888 | * 1999-02-27 mjd-perl-patch@plover.com */ |
10889 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
10890 | && isALNUM(*s)) | |
10891 | { | |
10892 | d++; | |
10893 | while (isALNUM(*s) && d < e) { | |
10894 | *d++ = *s++; | |
10895 | } | |
10896 | if (d >= e) | |
cea2e8a9 | 10897 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 10898 | *d = '\0'; |
79072805 LW |
10899 | } |
10900 | if (*s == '}') { | |
10901 | s++; | |
7df0d042 | 10902 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 10903 | PL_lex_state = LEX_INTERPEND; |
7df0d042 AE |
10904 | PL_expect = XREF; |
10905 | } | |
d008e5eb | 10906 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 10907 | if (ckWARN(WARN_AMBIGUOUS) && |
780a5241 NC |
10908 | (keyword(dest, d - dest, 0) |
10909 | || get_cvn_flags(dest, d - dest, 0))) | |
d008e5eb | 10910 | { |
c35e046a AL |
10911 | if (funny == '#') |
10912 | funny = '@'; | |
9014280d | 10913 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
10914 | "Ambiguous use of %c{%s} resolved to %c%s", |
10915 | funny, dest, funny, dest); | |
10916 | } | |
10917 | } | |
79072805 LW |
10918 | } |
10919 | else { | |
10920 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 10921 | *dest = '\0'; |
79072805 LW |
10922 | } |
10923 | } | |
3280af22 NIS |
10924 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
10925 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
10926 | return s; |
10927 | } | |
10928 | ||
cea2e8a9 | 10929 | void |
2b36a5a0 | 10930 | Perl_pmflag(pTHX_ U32* pmfl, int ch) |
a0d0e21e | 10931 | { |
7918f24d NC |
10932 | PERL_ARGS_ASSERT_PMFLAG; |
10933 | ||
96a5add6 | 10934 | PERL_UNUSED_CONTEXT; |
cde0cee5 | 10935 | if (ch<256) { |
15f169a1 | 10936 | const char c = (char)ch; |
cde0cee5 YO |
10937 | switch (c) { |
10938 | CASE_STD_PMMOD_FLAGS_PARSE_SET(pmfl); | |
a20207d7 YO |
10939 | case GLOBAL_PAT_MOD: *pmfl |= PMf_GLOBAL; break; |
10940 | case CONTINUE_PAT_MOD: *pmfl |= PMf_CONTINUE; break; | |
10941 | case ONCE_PAT_MOD: *pmfl |= PMf_KEEP; break; | |
10942 | case KEEPCOPY_PAT_MOD: *pmfl |= PMf_KEEPCOPY; break; | |
cde0cee5 YO |
10943 | } |
10944 | } | |
a0d0e21e | 10945 | } |
378cc40b | 10946 | |
76e3520e | 10947 | STATIC char * |
cea2e8a9 | 10948 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 10949 | { |
97aff369 | 10950 | dVAR; |
79072805 | 10951 | PMOP *pm; |
5db06880 | 10952 | char *s = scan_str(start,!!PL_madskills,FALSE); |
10edeb5d | 10953 | const char * const valid_flags = |
a20207d7 | 10954 | (const char *)((type == OP_QR) ? QR_PAT_MODS : M_PAT_MODS); |
5db06880 NC |
10955 | #ifdef PERL_MAD |
10956 | char *modstart; | |
10957 | #endif | |
10958 | ||
7918f24d | 10959 | PERL_ARGS_ASSERT_SCAN_PAT; |
378cc40b | 10960 | |
25c09cbf | 10961 | if (!s) { |
6136c704 | 10962 | const char * const delimiter = skipspace(start); |
10edeb5d JH |
10963 | Perl_croak(aTHX_ |
10964 | (const char *) | |
10965 | (*delimiter == '?' | |
10966 | ? "Search pattern not terminated or ternary operator parsed as search pattern" | |
10967 | : "Search pattern not terminated" )); | |
25c09cbf | 10968 | } |
bbce6d69 | 10969 | |
8782bef2 | 10970 | pm = (PMOP*)newPMOP(type, 0); |
ad639bfb NC |
10971 | if (PL_multi_open == '?') { |
10972 | /* This is the only point in the code that sets PMf_ONCE: */ | |
79072805 | 10973 | pm->op_pmflags |= PMf_ONCE; |
ad639bfb NC |
10974 | |
10975 | /* Hence it's safe to do this bit of PMOP book-keeping here, which | |
10976 | allows us to restrict the list needed by reset to just the ?? | |
10977 | matches. */ | |
10978 | assert(type != OP_TRANS); | |
10979 | if (PL_curstash) { | |
daba3364 | 10980 | MAGIC *mg = mg_find((const SV *)PL_curstash, PERL_MAGIC_symtab); |
ad639bfb NC |
10981 | U32 elements; |
10982 | if (!mg) { | |
daba3364 | 10983 | mg = sv_magicext(MUTABLE_SV(PL_curstash), 0, PERL_MAGIC_symtab, 0, 0, |
ad639bfb NC |
10984 | 0); |
10985 | } | |
10986 | elements = mg->mg_len / sizeof(PMOP**); | |
10987 | Renewc(mg->mg_ptr, elements + 1, PMOP*, char); | |
10988 | ((PMOP**)mg->mg_ptr) [elements++] = pm; | |
10989 | mg->mg_len = elements * sizeof(PMOP**); | |
10990 | PmopSTASH_set(pm,PL_curstash); | |
10991 | } | |
10992 | } | |
5db06880 NC |
10993 | #ifdef PERL_MAD |
10994 | modstart = s; | |
10995 | #endif | |
6136c704 AL |
10996 | while (*s && strchr(valid_flags, *s)) |
10997 | pmflag(&pm->op_pmflags,*s++); | |
5db06880 NC |
10998 | #ifdef PERL_MAD |
10999 | if (PL_madskills && modstart != s) { | |
11000 | SV* tmptoken = newSVpvn(modstart, s - modstart); | |
11001 | append_madprops(newMADPROP('m', MAD_SV, tmptoken, 0), (OP*)pm, 0); | |
11002 | } | |
11003 | #endif | |
4ac733c9 | 11004 | /* issue a warning if /c is specified,but /g is not */ |
041457d9 DM |
11005 | if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL) |
11006 | && ckWARN(WARN_REGEXP)) | |
4ac733c9 | 11007 | { |
a20207d7 YO |
11008 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), |
11009 | "Use of /c modifier is meaningless without /g" ); | |
4ac733c9 MJD |
11010 | } |
11011 | ||
3280af22 | 11012 | PL_lex_op = (OP*)pm; |
6154021b | 11013 | pl_yylval.ival = OP_MATCH; |
378cc40b LW |
11014 | return s; |
11015 | } | |
11016 | ||
76e3520e | 11017 | STATIC char * |
cea2e8a9 | 11018 | S_scan_subst(pTHX_ char *start) |
79072805 | 11019 | { |
27da23d5 | 11020 | dVAR; |
a0d0e21e | 11021 | register char *s; |
79072805 | 11022 | register PMOP *pm; |
4fdae800 | 11023 | I32 first_start; |
79072805 | 11024 | I32 es = 0; |
5db06880 NC |
11025 | #ifdef PERL_MAD |
11026 | char *modstart; | |
11027 | #endif | |
79072805 | 11028 | |
7918f24d NC |
11029 | PERL_ARGS_ASSERT_SCAN_SUBST; |
11030 | ||
6154021b | 11031 | pl_yylval.ival = OP_NULL; |
79072805 | 11032 | |
5db06880 | 11033 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 11034 | |
37fd879b | 11035 | if (!s) |
cea2e8a9 | 11036 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 11037 | |
3280af22 | 11038 | if (s[-1] == PL_multi_open) |
79072805 | 11039 | s--; |
5db06880 NC |
11040 | #ifdef PERL_MAD |
11041 | if (PL_madskills) { | |
cd81e915 NC |
11042 | CURMAD('q', PL_thisopen); |
11043 | CURMAD('_', PL_thiswhite); | |
11044 | CURMAD('E', PL_thisstuff); | |
11045 | CURMAD('Q', PL_thisclose); | |
11046 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
11047 | } |
11048 | #endif | |
79072805 | 11049 | |
3280af22 | 11050 | first_start = PL_multi_start; |
5db06880 | 11051 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 11052 | if (!s) { |
37fd879b | 11053 | if (PL_lex_stuff) { |
3280af22 | 11054 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 11055 | PL_lex_stuff = NULL; |
37fd879b | 11056 | } |
cea2e8a9 | 11057 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 11058 | } |
3280af22 | 11059 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 11060 | |
79072805 | 11061 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
5db06880 NC |
11062 | |
11063 | #ifdef PERL_MAD | |
11064 | if (PL_madskills) { | |
cd81e915 NC |
11065 | CURMAD('z', PL_thisopen); |
11066 | CURMAD('R', PL_thisstuff); | |
11067 | CURMAD('Z', PL_thisclose); | |
5db06880 NC |
11068 | } |
11069 | modstart = s; | |
11070 | #endif | |
11071 | ||
48c036b1 | 11072 | while (*s) { |
a20207d7 | 11073 | if (*s == EXEC_PAT_MOD) { |
a687059c | 11074 | s++; |
2f3197b3 | 11075 | es++; |
a687059c | 11076 | } |
a20207d7 | 11077 | else if (strchr(S_PAT_MODS, *s)) |
a0d0e21e | 11078 | pmflag(&pm->op_pmflags,*s++); |
48c036b1 GS |
11079 | else |
11080 | break; | |
378cc40b | 11081 | } |
79072805 | 11082 | |
5db06880 NC |
11083 | #ifdef PERL_MAD |
11084 | if (PL_madskills) { | |
11085 | if (modstart != s) | |
11086 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
11087 | append_madprops(PL_thismad, (OP*)pm, 0); |
11088 | PL_thismad = 0; | |
5db06880 NC |
11089 | } |
11090 | #endif | |
0bd48802 AL |
11091 | if ((pm->op_pmflags & PMf_CONTINUE) && ckWARN(WARN_REGEXP)) { |
11092 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" ); | |
4ac733c9 MJD |
11093 | } |
11094 | ||
79072805 | 11095 | if (es) { |
6136c704 AL |
11096 | SV * const repl = newSVpvs(""); |
11097 | ||
0244c3a4 GS |
11098 | PL_sublex_info.super_bufptr = s; |
11099 | PL_sublex_info.super_bufend = PL_bufend; | |
11100 | PL_multi_end = 0; | |
79072805 | 11101 | pm->op_pmflags |= PMf_EVAL; |
a5849ce5 NC |
11102 | while (es-- > 0) { |
11103 | if (es) | |
11104 | sv_catpvs(repl, "eval "); | |
11105 | else | |
11106 | sv_catpvs(repl, "do "); | |
11107 | } | |
6f43d98f | 11108 | sv_catpvs(repl, "{"); |
3280af22 | 11109 | sv_catsv(repl, PL_lex_repl); |
9badc361 RGS |
11110 | if (strchr(SvPVX(PL_lex_repl), '#')) |
11111 | sv_catpvs(repl, "\n"); | |
11112 | sv_catpvs(repl, "}"); | |
25da4f38 | 11113 | SvEVALED_on(repl); |
3280af22 NIS |
11114 | SvREFCNT_dec(PL_lex_repl); |
11115 | PL_lex_repl = repl; | |
378cc40b | 11116 | } |
79072805 | 11117 | |
3280af22 | 11118 | PL_lex_op = (OP*)pm; |
6154021b | 11119 | pl_yylval.ival = OP_SUBST; |
378cc40b LW |
11120 | return s; |
11121 | } | |
11122 | ||
76e3520e | 11123 | STATIC char * |
cea2e8a9 | 11124 | S_scan_trans(pTHX_ char *start) |
378cc40b | 11125 | { |
97aff369 | 11126 | dVAR; |
a0d0e21e | 11127 | register char* s; |
11343788 | 11128 | OP *o; |
79072805 | 11129 | short *tbl; |
b84c11c8 NC |
11130 | U8 squash; |
11131 | U8 del; | |
11132 | U8 complement; | |
5db06880 NC |
11133 | #ifdef PERL_MAD |
11134 | char *modstart; | |
11135 | #endif | |
79072805 | 11136 | |
7918f24d NC |
11137 | PERL_ARGS_ASSERT_SCAN_TRANS; |
11138 | ||
6154021b | 11139 | pl_yylval.ival = OP_NULL; |
79072805 | 11140 | |
5db06880 | 11141 | s = scan_str(start,!!PL_madskills,FALSE); |
37fd879b | 11142 | if (!s) |
cea2e8a9 | 11143 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
5db06880 | 11144 | |
3280af22 | 11145 | if (s[-1] == PL_multi_open) |
2f3197b3 | 11146 | s--; |
5db06880 NC |
11147 | #ifdef PERL_MAD |
11148 | if (PL_madskills) { | |
cd81e915 NC |
11149 | CURMAD('q', PL_thisopen); |
11150 | CURMAD('_', PL_thiswhite); | |
11151 | CURMAD('E', PL_thisstuff); | |
11152 | CURMAD('Q', PL_thisclose); | |
11153 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
11154 | } |
11155 | #endif | |
2f3197b3 | 11156 | |
5db06880 | 11157 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 11158 | if (!s) { |
37fd879b | 11159 | if (PL_lex_stuff) { |
3280af22 | 11160 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 11161 | PL_lex_stuff = NULL; |
37fd879b | 11162 | } |
cea2e8a9 | 11163 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 11164 | } |
5db06880 | 11165 | if (PL_madskills) { |
cd81e915 NC |
11166 | CURMAD('z', PL_thisopen); |
11167 | CURMAD('R', PL_thisstuff); | |
11168 | CURMAD('Z', PL_thisclose); | |
5db06880 | 11169 | } |
79072805 | 11170 | |
a0ed51b3 | 11171 | complement = del = squash = 0; |
5db06880 NC |
11172 | #ifdef PERL_MAD |
11173 | modstart = s; | |
11174 | #endif | |
7a1e2023 NC |
11175 | while (1) { |
11176 | switch (*s) { | |
11177 | case 'c': | |
79072805 | 11178 | complement = OPpTRANS_COMPLEMENT; |
7a1e2023 NC |
11179 | break; |
11180 | case 'd': | |
a0ed51b3 | 11181 | del = OPpTRANS_DELETE; |
7a1e2023 NC |
11182 | break; |
11183 | case 's': | |
79072805 | 11184 | squash = OPpTRANS_SQUASH; |
7a1e2023 NC |
11185 | break; |
11186 | default: | |
11187 | goto no_more; | |
11188 | } | |
395c3793 LW |
11189 | s++; |
11190 | } | |
7a1e2023 | 11191 | no_more: |
8973db79 | 11192 | |
aa1f7c5b | 11193 | tbl = (short *)PerlMemShared_calloc(complement&&!del?258:256, sizeof(short)); |
8973db79 | 11194 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
59f00321 RGS |
11195 | o->op_private &= ~OPpTRANS_ALL; |
11196 | o->op_private |= del|squash|complement| | |
7948272d NIS |
11197 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| |
11198 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 11199 | |
3280af22 | 11200 | PL_lex_op = o; |
6154021b | 11201 | pl_yylval.ival = OP_TRANS; |
5db06880 NC |
11202 | |
11203 | #ifdef PERL_MAD | |
11204 | if (PL_madskills) { | |
11205 | if (modstart != s) | |
11206 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
11207 | append_madprops(PL_thismad, o, 0); |
11208 | PL_thismad = 0; | |
5db06880 NC |
11209 | } |
11210 | #endif | |
11211 | ||
79072805 LW |
11212 | return s; |
11213 | } | |
11214 | ||
76e3520e | 11215 | STATIC char * |
cea2e8a9 | 11216 | S_scan_heredoc(pTHX_ register char *s) |
79072805 | 11217 | { |
97aff369 | 11218 | dVAR; |
79072805 LW |
11219 | SV *herewas; |
11220 | I32 op_type = OP_SCALAR; | |
11221 | I32 len; | |
11222 | SV *tmpstr; | |
11223 | char term; | |
73d840c0 | 11224 | const char *found_newline; |
79072805 | 11225 | register char *d; |
fc36a67e | 11226 | register char *e; |
4633a7c4 | 11227 | char *peek; |
f54cb97a | 11228 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
5db06880 NC |
11229 | #ifdef PERL_MAD |
11230 | I32 stuffstart = s - SvPVX(PL_linestr); | |
11231 | char *tstart; | |
11232 | ||
cd81e915 | 11233 | PL_realtokenstart = -1; |
5db06880 | 11234 | #endif |
79072805 | 11235 | |
7918f24d NC |
11236 | PERL_ARGS_ASSERT_SCAN_HEREDOC; |
11237 | ||
79072805 | 11238 | s += 2; |
3280af22 NIS |
11239 | d = PL_tokenbuf; |
11240 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 11241 | if (!outer) |
79072805 | 11242 | *d++ = '\n'; |
c35e046a AL |
11243 | peek = s; |
11244 | while (SPACE_OR_TAB(*peek)) | |
11245 | peek++; | |
3792a11b | 11246 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 11247 | s = peek; |
79072805 | 11248 | term = *s++; |
3280af22 | 11249 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 11250 | d += len; |
3280af22 | 11251 | if (s < PL_bufend) |
79072805 | 11252 | s++; |
79072805 LW |
11253 | } |
11254 | else { | |
11255 | if (*s == '\\') | |
11256 | s++, term = '\''; | |
11257 | else | |
11258 | term = '"'; | |
7e2040f0 | 11259 | if (!isALNUM_lazy_if(s,UTF)) |
12bcd1a6 | 11260 | deprecate_old("bare << to mean <<\"\""); |
7e2040f0 | 11261 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 11262 | if (d < e) |
11263 | *d++ = *s; | |
11264 | } | |
11265 | } | |
3280af22 | 11266 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 11267 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
11268 | *d++ = '\n'; |
11269 | *d = '\0'; | |
3280af22 | 11270 | len = d - PL_tokenbuf; |
5db06880 NC |
11271 | |
11272 | #ifdef PERL_MAD | |
11273 | if (PL_madskills) { | |
11274 | tstart = PL_tokenbuf + !outer; | |
cd81e915 | 11275 | PL_thisclose = newSVpvn(tstart, len - !outer); |
5db06880 | 11276 | tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 | 11277 | PL_thisopen = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11278 | stuffstart = s - SvPVX(PL_linestr); |
11279 | } | |
11280 | #endif | |
6a27c188 | 11281 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
11282 | d = strchr(s, '\r'); |
11283 | if (d) { | |
b464bac0 | 11284 | char * const olds = s; |
f63a84b2 | 11285 | s = d; |
3280af22 | 11286 | while (s < PL_bufend) { |
f63a84b2 LW |
11287 | if (*s == '\r') { |
11288 | *d++ = '\n'; | |
11289 | if (*++s == '\n') | |
11290 | s++; | |
11291 | } | |
11292 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
11293 | *d++ = *s++; | |
11294 | s++; | |
11295 | } | |
11296 | else | |
11297 | *d++ = *s++; | |
11298 | } | |
11299 | *d = '\0'; | |
3280af22 | 11300 | PL_bufend = d; |
95a20fc0 | 11301 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
11302 | s = olds; |
11303 | } | |
11304 | #endif | |
5db06880 NC |
11305 | #ifdef PERL_MAD |
11306 | found_newline = 0; | |
11307 | #endif | |
10edeb5d | 11308 | if ( outer || !(found_newline = (char*)memchr((void*)s, '\n', PL_bufend - s)) ) { |
73d840c0 AL |
11309 | herewas = newSVpvn(s,PL_bufend-s); |
11310 | } | |
11311 | else { | |
5db06880 NC |
11312 | #ifdef PERL_MAD |
11313 | herewas = newSVpvn(s-1,found_newline-s+1); | |
11314 | #else | |
73d840c0 AL |
11315 | s--; |
11316 | herewas = newSVpvn(s,found_newline-s); | |
5db06880 | 11317 | #endif |
73d840c0 | 11318 | } |
5db06880 NC |
11319 | #ifdef PERL_MAD |
11320 | if (PL_madskills) { | |
11321 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11322 | if (PL_thisstuff) |
11323 | sv_catpvn(PL_thisstuff, tstart, s - tstart); | |
5db06880 | 11324 | else |
cd81e915 | 11325 | PL_thisstuff = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11326 | } |
11327 | #endif | |
79072805 | 11328 | s += SvCUR(herewas); |
748a9306 | 11329 | |
5db06880 NC |
11330 | #ifdef PERL_MAD |
11331 | stuffstart = s - SvPVX(PL_linestr); | |
11332 | ||
11333 | if (found_newline) | |
11334 | s--; | |
11335 | #endif | |
11336 | ||
7d0a29fe NC |
11337 | tmpstr = newSV_type(SVt_PVIV); |
11338 | SvGROW(tmpstr, 80); | |
748a9306 | 11339 | if (term == '\'') { |
79072805 | 11340 | op_type = OP_CONST; |
45977657 | 11341 | SvIV_set(tmpstr, -1); |
748a9306 LW |
11342 | } |
11343 | else if (term == '`') { | |
79072805 | 11344 | op_type = OP_BACKTICK; |
45977657 | 11345 | SvIV_set(tmpstr, '\\'); |
748a9306 | 11346 | } |
79072805 LW |
11347 | |
11348 | CLINE; | |
57843af0 | 11349 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
11350 | PL_multi_open = PL_multi_close = '<'; |
11351 | term = *PL_tokenbuf; | |
0244c3a4 | 11352 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
6136c704 AL |
11353 | char * const bufptr = PL_sublex_info.super_bufptr; |
11354 | char * const bufend = PL_sublex_info.super_bufend; | |
b464bac0 | 11355 | char * const olds = s - SvCUR(herewas); |
0244c3a4 GS |
11356 | s = strchr(bufptr, '\n'); |
11357 | if (!s) | |
11358 | s = bufend; | |
11359 | d = s; | |
11360 | while (s < bufend && | |
11361 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
11362 | if (*s++ == '\n') | |
57843af0 | 11363 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
11364 | } |
11365 | if (s >= bufend) { | |
eb160463 | 11366 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
11367 | missingterm(PL_tokenbuf); |
11368 | } | |
11369 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
11370 | sv_setpvn(tmpstr,d+1,s-d); | |
11371 | s += len - 1; | |
11372 | sv_catpvn(herewas,s,bufend-s); | |
95a20fc0 | 11373 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
11374 | |
11375 | s = olds; | |
11376 | goto retval; | |
11377 | } | |
11378 | else if (!outer) { | |
79072805 | 11379 | d = s; |
3280af22 NIS |
11380 | while (s < PL_bufend && |
11381 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 11382 | if (*s++ == '\n') |
57843af0 | 11383 | CopLINE_inc(PL_curcop); |
79072805 | 11384 | } |
3280af22 | 11385 | if (s >= PL_bufend) { |
eb160463 | 11386 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11387 | missingterm(PL_tokenbuf); |
79072805 LW |
11388 | } |
11389 | sv_setpvn(tmpstr,d+1,s-d); | |
5db06880 NC |
11390 | #ifdef PERL_MAD |
11391 | if (PL_madskills) { | |
cd81e915 NC |
11392 | if (PL_thisstuff) |
11393 | sv_catpvn(PL_thisstuff, d + 1, s - d); | |
5db06880 | 11394 | else |
cd81e915 | 11395 | PL_thisstuff = newSVpvn(d + 1, s - d); |
5db06880 NC |
11396 | stuffstart = s - SvPVX(PL_linestr); |
11397 | } | |
11398 | #endif | |
79072805 | 11399 | s += len - 1; |
57843af0 | 11400 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 11401 | |
3280af22 NIS |
11402 | sv_catpvn(herewas,s,PL_bufend-s); |
11403 | sv_setsv(PL_linestr,herewas); | |
11404 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
11405 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11406 | PL_last_lop = PL_last_uni = NULL; |
79072805 LW |
11407 | } |
11408 | else | |
76f68e9b | 11409 | sv_setpvs(tmpstr,""); /* avoid "uninitialized" warning */ |
3280af22 | 11410 | while (s >= PL_bufend) { /* multiple line string? */ |
5db06880 NC |
11411 | #ifdef PERL_MAD |
11412 | if (PL_madskills) { | |
11413 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11414 | if (PL_thisstuff) |
11415 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11416 | else |
cd81e915 | 11417 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11418 | } |
11419 | #endif | |
fd2d0953 | 11420 | if (!outer || |
3280af22 | 11421 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { |
eb160463 | 11422 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11423 | missingterm(PL_tokenbuf); |
79072805 | 11424 | } |
5db06880 NC |
11425 | #ifdef PERL_MAD |
11426 | stuffstart = s - SvPVX(PL_linestr); | |
11427 | #endif | |
57843af0 | 11428 | CopLINE_inc(PL_curcop); |
3280af22 | 11429 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 11430 | PL_last_lop = PL_last_uni = NULL; |
6a27c188 | 11431 | #ifndef PERL_STRICT_CR |
3280af22 | 11432 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
11433 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
11434 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 11435 | { |
3280af22 NIS |
11436 | PL_bufend[-2] = '\n'; |
11437 | PL_bufend--; | |
95a20fc0 | 11438 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 11439 | } |
3280af22 NIS |
11440 | else if (PL_bufend[-1] == '\r') |
11441 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11442 | } |
3280af22 NIS |
11443 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
11444 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11445 | #endif |
65269a95 | 11446 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
5fa550fb | 11447 | update_debugger_info(PL_linestr, NULL, 0); |
3280af22 | 11448 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
95a20fc0 | 11449 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
1de9afcd | 11450 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
11451 | sv_catsv(PL_linestr,herewas); |
11452 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
1de9afcd | 11453 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
11454 | } |
11455 | else { | |
3280af22 NIS |
11456 | s = PL_bufend; |
11457 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
11458 | } |
11459 | } | |
79072805 | 11460 | s++; |
0244c3a4 | 11461 | retval: |
57843af0 | 11462 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 11463 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
1da4ca5f | 11464 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 11465 | } |
8990e307 | 11466 | SvREFCNT_dec(herewas); |
2f31ce75 | 11467 | if (!IN_BYTES) { |
95a20fc0 | 11468 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
2f31ce75 JH |
11469 | SvUTF8_on(tmpstr); |
11470 | else if (PL_encoding) | |
11471 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
11472 | } | |
3280af22 | 11473 | PL_lex_stuff = tmpstr; |
6154021b | 11474 | pl_yylval.ival = op_type; |
79072805 LW |
11475 | return s; |
11476 | } | |
11477 | ||
02aa26ce NT |
11478 | /* scan_inputsymbol |
11479 | takes: current position in input buffer | |
11480 | returns: new position in input buffer | |
6154021b | 11481 | side-effects: pl_yylval and lex_op are set. |
02aa26ce NT |
11482 | |
11483 | This code handles: | |
11484 | ||
11485 | <> read from ARGV | |
11486 | <FH> read from filehandle | |
11487 | <pkg::FH> read from package qualified filehandle | |
11488 | <pkg'FH> read from package qualified filehandle | |
11489 | <$fh> read from filehandle in $fh | |
11490 | <*.h> filename glob | |
11491 | ||
11492 | */ | |
11493 | ||
76e3520e | 11494 | STATIC char * |
cea2e8a9 | 11495 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 11496 | { |
97aff369 | 11497 | dVAR; |
02aa26ce | 11498 | register char *s = start; /* current position in buffer */ |
1b420867 | 11499 | char *end; |
79072805 | 11500 | I32 len; |
6136c704 AL |
11501 | char *d = PL_tokenbuf; /* start of temp holding space */ |
11502 | const char * const e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
11503 | ||
7918f24d NC |
11504 | PERL_ARGS_ASSERT_SCAN_INPUTSYMBOL; |
11505 | ||
1b420867 GS |
11506 | end = strchr(s, '\n'); |
11507 | if (!end) | |
11508 | end = PL_bufend; | |
11509 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
11510 | |
11511 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 11512 | or if it didn't end, or if we see a newline |
02aa26ce NT |
11513 | */ |
11514 | ||
bb7a0f54 | 11515 | if (len >= (I32)sizeof PL_tokenbuf) |
cea2e8a9 | 11516 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 11517 | if (s >= end) |
cea2e8a9 | 11518 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 11519 | |
fc36a67e | 11520 | s++; |
02aa26ce NT |
11521 | |
11522 | /* check for <$fh> | |
11523 | Remember, only scalar variables are interpreted as filehandles by | |
11524 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
11525 | treated as a glob() call. | |
11526 | This code makes use of the fact that except for the $ at the front, | |
11527 | a scalar variable and a filehandle look the same. | |
11528 | */ | |
4633a7c4 | 11529 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
11530 | |
11531 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 11532 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 11533 | d++; |
02aa26ce NT |
11534 | |
11535 | /* If we've tried to read what we allow filehandles to look like, and | |
11536 | there's still text left, then it must be a glob() and not a getline. | |
11537 | Use scan_str to pull out the stuff between the <> and treat it | |
11538 | as nothing more than a string. | |
11539 | */ | |
11540 | ||
3280af22 | 11541 | if (d - PL_tokenbuf != len) { |
6154021b | 11542 | pl_yylval.ival = OP_GLOB; |
5db06880 | 11543 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 11544 | if (!s) |
cea2e8a9 | 11545 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
11546 | return s; |
11547 | } | |
395c3793 | 11548 | else { |
9b3023bc | 11549 | bool readline_overriden = FALSE; |
6136c704 | 11550 | GV *gv_readline; |
9b3023bc | 11551 | GV **gvp; |
02aa26ce | 11552 | /* we're in a filehandle read situation */ |
3280af22 | 11553 | d = PL_tokenbuf; |
02aa26ce NT |
11554 | |
11555 | /* turn <> into <ARGV> */ | |
79072805 | 11556 | if (!len) |
689badd5 | 11557 | Copy("ARGV",d,5,char); |
02aa26ce | 11558 | |
9b3023bc | 11559 | /* Check whether readline() is overriden */ |
fafc274c | 11560 | gv_readline = gv_fetchpvs("readline", GV_NOTQUAL, SVt_PVCV); |
6136c704 | 11561 | if ((gv_readline |
ba979b31 | 11562 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) |
9b3023bc | 11563 | || |
017a3ce5 | 11564 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE)) |
9e0d86f8 | 11565 | && (gv_readline = *gvp) && isGV_with_GP(gv_readline) |
ba979b31 | 11566 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
11567 | readline_overriden = TRUE; |
11568 | ||
02aa26ce NT |
11569 | /* if <$fh>, create the ops to turn the variable into a |
11570 | filehandle | |
11571 | */ | |
79072805 | 11572 | if (*d == '$') { |
02aa26ce NT |
11573 | /* try to find it in the pad for this block, otherwise find |
11574 | add symbol table ops | |
11575 | */ | |
bbd11bfc AL |
11576 | const PADOFFSET tmp = pad_findmy(d); |
11577 | if (tmp != NOT_IN_PAD) { | |
00b1698f | 11578 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
6136c704 AL |
11579 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
11580 | HEK * const stashname = HvNAME_HEK(stash); | |
11581 | SV * const sym = sv_2mortal(newSVhek(stashname)); | |
396482e1 | 11582 | sv_catpvs(sym, "::"); |
f558d5af JH |
11583 | sv_catpv(sym, d+1); |
11584 | d = SvPVX(sym); | |
11585 | goto intro_sym; | |
11586 | } | |
11587 | else { | |
6136c704 | 11588 | OP * const o = newOP(OP_PADSV, 0); |
f558d5af | 11589 | o->op_targ = tmp; |
9b3023bc RGS |
11590 | PL_lex_op = readline_overriden |
11591 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11592 | append_elem(OP_LIST, o, | |
11593 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
11594 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 11595 | } |
a0d0e21e LW |
11596 | } |
11597 | else { | |
f558d5af JH |
11598 | GV *gv; |
11599 | ++d; | |
11600 | intro_sym: | |
11601 | gv = gv_fetchpv(d, | |
11602 | (PL_in_eval | |
11603 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 11604 | : GV_ADDMULTI), |
f558d5af | 11605 | SVt_PV); |
9b3023bc RGS |
11606 | PL_lex_op = readline_overriden |
11607 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11608 | append_elem(OP_LIST, | |
11609 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
11610 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11611 | : (OP*)newUNOP(OP_READLINE, 0, | |
11612 | newUNOP(OP_RV2SV, 0, | |
11613 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 11614 | } |
7c6fadd6 RGS |
11615 | if (!readline_overriden) |
11616 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
6154021b RGS |
11617 | /* we created the ops in PL_lex_op, so make pl_yylval.ival a null op */ |
11618 | pl_yylval.ival = OP_NULL; | |
79072805 | 11619 | } |
02aa26ce NT |
11620 | |
11621 | /* If it's none of the above, it must be a literal filehandle | |
11622 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 11623 | else { |
6136c704 | 11624 | GV * const gv = gv_fetchpv(d, GV_ADD, SVt_PVIO); |
9b3023bc RGS |
11625 | PL_lex_op = readline_overriden |
11626 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11627 | append_elem(OP_LIST, | |
11628 | newGVOP(OP_GV, 0, gv), | |
11629 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11630 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
6154021b | 11631 | pl_yylval.ival = OP_NULL; |
79072805 LW |
11632 | } |
11633 | } | |
02aa26ce | 11634 | |
79072805 LW |
11635 | return s; |
11636 | } | |
11637 | ||
02aa26ce NT |
11638 | |
11639 | /* scan_str | |
11640 | takes: start position in buffer | |
09bef843 SB |
11641 | keep_quoted preserve \ on the embedded delimiter(s) |
11642 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
11643 | returns: position to continue reading from buffer |
11644 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
11645 | updates the read buffer. | |
11646 | ||
11647 | This subroutine pulls a string out of the input. It is called for: | |
11648 | q single quotes q(literal text) | |
11649 | ' single quotes 'literal text' | |
11650 | qq double quotes qq(interpolate $here please) | |
11651 | " double quotes "interpolate $here please" | |
11652 | qx backticks qx(/bin/ls -l) | |
11653 | ` backticks `/bin/ls -l` | |
11654 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
11655 | m// regexp match m/this/ | |
11656 | s/// regexp substitute s/this/that/ | |
11657 | tr/// string transliterate tr/this/that/ | |
11658 | y/// string transliterate y/this/that/ | |
11659 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 11660 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
11661 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
11662 | ||
11663 | In most of these cases (all but <>, patterns and transliterate) | |
11664 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
11665 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
11666 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
11667 | calls scan_str(). | |
4e553d73 | 11668 | |
02aa26ce NT |
11669 | It skips whitespace before the string starts, and treats the first |
11670 | character as the delimiter. If the delimiter is one of ([{< then | |
11671 | the corresponding "close" character )]}> is used as the closing | |
11672 | delimiter. It allows quoting of delimiters, and if the string has | |
11673 | balanced delimiters ([{<>}]) it allows nesting. | |
11674 | ||
37fd879b HS |
11675 | On success, the SV with the resulting string is put into lex_stuff or, |
11676 | if that is already non-NULL, into lex_repl. The second case occurs only | |
11677 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
11678 | For convenience, the terminating delimiter character is stuffed into | |
11679 | SvIVX of the SV. | |
02aa26ce NT |
11680 | */ |
11681 | ||
76e3520e | 11682 | STATIC char * |
09bef843 | 11683 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 11684 | { |
97aff369 | 11685 | dVAR; |
02aa26ce | 11686 | SV *sv; /* scalar value: string */ |
d3fcec1f | 11687 | const char *tmps; /* temp string, used for delimiter matching */ |
02aa26ce NT |
11688 | register char *s = start; /* current position in the buffer */ |
11689 | register char term; /* terminating character */ | |
11690 | register char *to; /* current position in the sv's data */ | |
11691 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 11692 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
220e2d4e | 11693 | I32 termcode; /* terminating char. code */ |
89ebb4a3 | 11694 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
220e2d4e | 11695 | STRLEN termlen; /* length of terminating string */ |
0331ef07 | 11696 | int last_off = 0; /* last position for nesting bracket */ |
5db06880 NC |
11697 | #ifdef PERL_MAD |
11698 | int stuffstart; | |
11699 | char *tstart; | |
11700 | #endif | |
02aa26ce | 11701 | |
7918f24d NC |
11702 | PERL_ARGS_ASSERT_SCAN_STR; |
11703 | ||
02aa26ce | 11704 | /* skip space before the delimiter */ |
29595ff2 NC |
11705 | if (isSPACE(*s)) { |
11706 | s = PEEKSPACE(s); | |
11707 | } | |
02aa26ce | 11708 | |
5db06880 | 11709 | #ifdef PERL_MAD |
cd81e915 NC |
11710 | if (PL_realtokenstart >= 0) { |
11711 | stuffstart = PL_realtokenstart; | |
11712 | PL_realtokenstart = -1; | |
5db06880 NC |
11713 | } |
11714 | else | |
11715 | stuffstart = start - SvPVX(PL_linestr); | |
11716 | #endif | |
02aa26ce | 11717 | /* mark where we are, in case we need to report errors */ |
79072805 | 11718 | CLINE; |
02aa26ce NT |
11719 | |
11720 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 11721 | term = *s; |
220e2d4e IH |
11722 | if (!UTF) { |
11723 | termcode = termstr[0] = term; | |
11724 | termlen = 1; | |
11725 | } | |
11726 | else { | |
f3b9ce0f | 11727 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
220e2d4e IH |
11728 | Copy(s, termstr, termlen, U8); |
11729 | if (!UTF8_IS_INVARIANT(term)) | |
11730 | has_utf8 = TRUE; | |
11731 | } | |
b1c7b182 | 11732 | |
02aa26ce | 11733 | /* mark where we are */ |
57843af0 | 11734 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 11735 | PL_multi_open = term; |
02aa26ce NT |
11736 | |
11737 | /* find corresponding closing delimiter */ | |
93a17b20 | 11738 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
220e2d4e IH |
11739 | termcode = termstr[0] = term = tmps[5]; |
11740 | ||
3280af22 | 11741 | PL_multi_close = term; |
79072805 | 11742 | |
561b68a9 SH |
11743 | /* create a new SV to hold the contents. 79 is the SV's initial length. |
11744 | What a random number. */ | |
7d0a29fe NC |
11745 | sv = newSV_type(SVt_PVIV); |
11746 | SvGROW(sv, 80); | |
45977657 | 11747 | SvIV_set(sv, termcode); |
a0d0e21e | 11748 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
11749 | |
11750 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 11751 | if (keep_delims) |
220e2d4e IH |
11752 | sv_catpvn(sv, s, termlen); |
11753 | s += termlen; | |
5db06880 NC |
11754 | #ifdef PERL_MAD |
11755 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11756 | if (!PL_thisopen && !keep_delims) { |
11757 | PL_thisopen = newSVpvn(tstart, s - tstart); | |
5db06880 NC |
11758 | stuffstart = s - SvPVX(PL_linestr); |
11759 | } | |
11760 | #endif | |
93a17b20 | 11761 | for (;;) { |
220e2d4e IH |
11762 | if (PL_encoding && !UTF) { |
11763 | bool cont = TRUE; | |
11764 | ||
11765 | while (cont) { | |
95a20fc0 | 11766 | int offset = s - SvPVX_const(PL_linestr); |
66a1b24b | 11767 | const bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f3b9ce0f | 11768 | &offset, (char*)termstr, termlen); |
6136c704 AL |
11769 | const char * const ns = SvPVX_const(PL_linestr) + offset; |
11770 | char * const svlast = SvEND(sv) - 1; | |
220e2d4e IH |
11771 | |
11772 | for (; s < ns; s++) { | |
11773 | if (*s == '\n' && !PL_rsfp) | |
11774 | CopLINE_inc(PL_curcop); | |
11775 | } | |
11776 | if (!found) | |
11777 | goto read_more_line; | |
11778 | else { | |
11779 | /* handle quoted delimiters */ | |
52327caf | 11780 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
f54cb97a | 11781 | const char *t; |
95a20fc0 | 11782 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
220e2d4e IH |
11783 | t--; |
11784 | if ((svlast-1 - t) % 2) { | |
11785 | if (!keep_quoted) { | |
11786 | *(svlast-1) = term; | |
11787 | *svlast = '\0'; | |
11788 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11789 | } | |
11790 | continue; | |
11791 | } | |
11792 | } | |
11793 | if (PL_multi_open == PL_multi_close) { | |
11794 | cont = FALSE; | |
11795 | } | |
11796 | else { | |
f54cb97a AL |
11797 | const char *t; |
11798 | char *w; | |
0331ef07 | 11799 | for (t = w = SvPVX(sv)+last_off; t < svlast; w++, t++) { |
220e2d4e IH |
11800 | /* At here, all closes are "was quoted" one, |
11801 | so we don't check PL_multi_close. */ | |
11802 | if (*t == '\\') { | |
11803 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
11804 | t++; | |
11805 | else | |
11806 | *w++ = *t++; | |
11807 | } | |
11808 | else if (*t == PL_multi_open) | |
11809 | brackets++; | |
11810 | ||
11811 | *w = *t; | |
11812 | } | |
11813 | if (w < t) { | |
11814 | *w++ = term; | |
11815 | *w = '\0'; | |
95a20fc0 | 11816 | SvCUR_set(sv, w - SvPVX_const(sv)); |
220e2d4e | 11817 | } |
0331ef07 | 11818 | last_off = w - SvPVX(sv); |
220e2d4e IH |
11819 | if (--brackets <= 0) |
11820 | cont = FALSE; | |
11821 | } | |
11822 | } | |
11823 | } | |
11824 | if (!keep_delims) { | |
11825 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11826 | *SvEND(sv) = '\0'; | |
11827 | } | |
11828 | break; | |
11829 | } | |
11830 | ||
02aa26ce | 11831 | /* extend sv if need be */ |
3280af22 | 11832 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 11833 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 11834 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 11835 | |
02aa26ce | 11836 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
11837 | if (PL_multi_open == PL_multi_close) { |
11838 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 11839 | /* embedded newlines increment the current line number */ |
3280af22 | 11840 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11841 | CopLINE_inc(PL_curcop); |
02aa26ce | 11842 | /* handle quoted delimiters */ |
3280af22 | 11843 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 11844 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 11845 | s++; |
02aa26ce | 11846 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
11847 | else |
11848 | *to++ = *s++; | |
11849 | } | |
02aa26ce NT |
11850 | /* terminate when run out of buffer (the for() condition), or |
11851 | have found the terminator */ | |
220e2d4e IH |
11852 | else if (*s == term) { |
11853 | if (termlen == 1) | |
11854 | break; | |
f3b9ce0f | 11855 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
220e2d4e IH |
11856 | break; |
11857 | } | |
63cd0674 | 11858 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11859 | has_utf8 = TRUE; |
93a17b20 LW |
11860 | *to = *s; |
11861 | } | |
11862 | } | |
02aa26ce NT |
11863 | |
11864 | /* if the terminator isn't the same as the start character (e.g., | |
11865 | matched brackets), we have to allow more in the quoting, and | |
11866 | be prepared for nested brackets. | |
11867 | */ | |
93a17b20 | 11868 | else { |
02aa26ce | 11869 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 11870 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 11871 | /* embedded newlines increment the line count */ |
3280af22 | 11872 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11873 | CopLINE_inc(PL_curcop); |
02aa26ce | 11874 | /* backslashes can escape the open or closing characters */ |
3280af22 | 11875 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
11876 | if (!keep_quoted && |
11877 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
11878 | s++; |
11879 | else | |
11880 | *to++ = *s++; | |
11881 | } | |
02aa26ce | 11882 | /* allow nested opens and closes */ |
3280af22 | 11883 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 11884 | break; |
3280af22 | 11885 | else if (*s == PL_multi_open) |
93a17b20 | 11886 | brackets++; |
63cd0674 | 11887 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11888 | has_utf8 = TRUE; |
93a17b20 LW |
11889 | *to = *s; |
11890 | } | |
11891 | } | |
02aa26ce | 11892 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 11893 | *to = '\0'; |
95a20fc0 | 11894 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 11895 | |
02aa26ce NT |
11896 | /* |
11897 | * this next chunk reads more into the buffer if we're not done yet | |
11898 | */ | |
11899 | ||
b1c7b182 GS |
11900 | if (s < PL_bufend) |
11901 | break; /* handle case where we are done yet :-) */ | |
79072805 | 11902 | |
6a27c188 | 11903 | #ifndef PERL_STRICT_CR |
95a20fc0 | 11904 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
11905 | if ((to[-2] == '\r' && to[-1] == '\n') || |
11906 | (to[-2] == '\n' && to[-1] == '\r')) | |
11907 | { | |
f63a84b2 LW |
11908 | to[-2] = '\n'; |
11909 | to--; | |
95a20fc0 | 11910 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
11911 | } |
11912 | else if (to[-1] == '\r') | |
11913 | to[-1] = '\n'; | |
11914 | } | |
95a20fc0 | 11915 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
11916 | to[-1] = '\n'; |
11917 | #endif | |
11918 | ||
220e2d4e | 11919 | read_more_line: |
02aa26ce NT |
11920 | /* if we're out of file, or a read fails, bail and reset the current |
11921 | line marker so we can report where the unterminated string began | |
11922 | */ | |
5db06880 NC |
11923 | #ifdef PERL_MAD |
11924 | if (PL_madskills) { | |
c35e046a | 11925 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 NC |
11926 | if (PL_thisstuff) |
11927 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11928 | else |
cd81e915 | 11929 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11930 | } |
11931 | #endif | |
3280af22 NIS |
11932 | if (!PL_rsfp || |
11933 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { | |
c07a80fd | 11934 | sv_free(sv); |
eb160463 | 11935 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
bd61b366 | 11936 | return NULL; |
79072805 | 11937 | } |
5db06880 NC |
11938 | #ifdef PERL_MAD |
11939 | stuffstart = 0; | |
11940 | #endif | |
02aa26ce | 11941 | /* we read a line, so increment our line counter */ |
57843af0 | 11942 | CopLINE_inc(PL_curcop); |
a0ed51b3 | 11943 | |
02aa26ce | 11944 | /* update debugger info */ |
65269a95 | 11945 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
5fa550fb | 11946 | update_debugger_info(PL_linestr, NULL, 0); |
a0ed51b3 | 11947 | |
3280af22 NIS |
11948 | /* having changed the buffer, we must update PL_bufend */ |
11949 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11950 | PL_last_lop = PL_last_uni = NULL; |
378cc40b | 11951 | } |
4e553d73 | 11952 | |
02aa26ce NT |
11953 | /* at this point, we have successfully read the delimited string */ |
11954 | ||
220e2d4e | 11955 | if (!PL_encoding || UTF) { |
5db06880 NC |
11956 | #ifdef PERL_MAD |
11957 | if (PL_madskills) { | |
c35e046a | 11958 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
29522234 | 11959 | const int len = s - tstart; |
cd81e915 | 11960 | if (PL_thisstuff) |
c35e046a | 11961 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11962 | else |
c35e046a | 11963 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11964 | if (!PL_thisclose && !keep_delims) |
11965 | PL_thisclose = newSVpvn(s,termlen); | |
5db06880 NC |
11966 | } |
11967 | #endif | |
11968 | ||
220e2d4e IH |
11969 | if (keep_delims) |
11970 | sv_catpvn(sv, s, termlen); | |
11971 | s += termlen; | |
11972 | } | |
5db06880 NC |
11973 | #ifdef PERL_MAD |
11974 | else { | |
11975 | if (PL_madskills) { | |
c35e046a AL |
11976 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
11977 | const int len = s - tstart - termlen; | |
cd81e915 | 11978 | if (PL_thisstuff) |
c35e046a | 11979 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11980 | else |
c35e046a | 11981 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11982 | if (!PL_thisclose && !keep_delims) |
11983 | PL_thisclose = newSVpvn(s - termlen,termlen); | |
5db06880 NC |
11984 | } |
11985 | } | |
11986 | #endif | |
220e2d4e | 11987 | if (has_utf8 || PL_encoding) |
b1c7b182 | 11988 | SvUTF8_on(sv); |
d0063567 | 11989 | |
57843af0 | 11990 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
11991 | |
11992 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
11993 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
11994 | SvLEN_set(sv, SvCUR(sv) + 1); | |
b7e9a5c2 | 11995 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 11996 | } |
02aa26ce NT |
11997 | |
11998 | /* decide whether this is the first or second quoted string we've read | |
11999 | for this op | |
12000 | */ | |
4e553d73 | 12001 | |
3280af22 NIS |
12002 | if (PL_lex_stuff) |
12003 | PL_lex_repl = sv; | |
79072805 | 12004 | else |
3280af22 | 12005 | PL_lex_stuff = sv; |
378cc40b LW |
12006 | return s; |
12007 | } | |
12008 | ||
02aa26ce NT |
12009 | /* |
12010 | scan_num | |
12011 | takes: pointer to position in buffer | |
12012 | returns: pointer to new position in buffer | |
6154021b | 12013 | side-effects: builds ops for the constant in pl_yylval.op |
02aa26ce NT |
12014 | |
12015 | Read a number in any of the formats that Perl accepts: | |
12016 | ||
7fd134d9 JH |
12017 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
12018 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
12019 | 0b[01](_?[01])* |
12020 | 0[0-7](_?[0-7])* | |
12021 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 12022 | |
3280af22 | 12023 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
12024 | thing it reads. |
12025 | ||
12026 | If it reads a number without a decimal point or an exponent, it will | |
12027 | try converting the number to an integer and see if it can do so | |
12028 | without loss of precision. | |
12029 | */ | |
4e553d73 | 12030 | |
378cc40b | 12031 | char * |
bfed75c6 | 12032 | Perl_scan_num(pTHX_ const char *start, YYSTYPE* lvalp) |
378cc40b | 12033 | { |
97aff369 | 12034 | dVAR; |
bfed75c6 | 12035 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
12036 | register char *d; /* destination in temp buffer */ |
12037 | register char *e; /* end of temp buffer */ | |
86554af2 | 12038 | NV nv; /* number read, as a double */ |
a0714e2c | 12039 | SV *sv = NULL; /* place to put the converted number */ |
a86a20aa | 12040 | bool floatit; /* boolean: int or float? */ |
cbbf8932 | 12041 | const char *lastub = NULL; /* position of last underbar */ |
bfed75c6 | 12042 | static char const number_too_long[] = "Number too long"; |
378cc40b | 12043 | |
7918f24d NC |
12044 | PERL_ARGS_ASSERT_SCAN_NUM; |
12045 | ||
02aa26ce NT |
12046 | /* We use the first character to decide what type of number this is */ |
12047 | ||
378cc40b | 12048 | switch (*s) { |
79072805 | 12049 | default: |
cea2e8a9 | 12050 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 12051 | |
02aa26ce | 12052 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 12053 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
12054 | case '0': |
12055 | { | |
02aa26ce NT |
12056 | /* variables: |
12057 | u holds the "number so far" | |
4f19785b WSI |
12058 | shift the power of 2 of the base |
12059 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
12060 | overflowed was the number more than we can hold? |
12061 | ||
12062 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
12063 | we in octal/hex/binary?" indicator to disallow hex characters |
12064 | when in octal mode. | |
02aa26ce | 12065 | */ |
9e24b6e2 JH |
12066 | NV n = 0.0; |
12067 | UV u = 0; | |
79072805 | 12068 | I32 shift; |
9e24b6e2 | 12069 | bool overflowed = FALSE; |
61f33854 | 12070 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
27da23d5 JH |
12071 | static const NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
12072 | static const char* const bases[5] = | |
12073 | { "", "binary", "", "octal", "hexadecimal" }; | |
12074 | static const char* const Bases[5] = | |
12075 | { "", "Binary", "", "Octal", "Hexadecimal" }; | |
12076 | static const char* const maxima[5] = | |
12077 | { "", | |
12078 | "0b11111111111111111111111111111111", | |
12079 | "", | |
12080 | "037777777777", | |
12081 | "0xffffffff" }; | |
bfed75c6 | 12082 | const char *base, *Base, *max; |
378cc40b | 12083 | |
02aa26ce | 12084 | /* check for hex */ |
378cc40b LW |
12085 | if (s[1] == 'x') { |
12086 | shift = 4; | |
12087 | s += 2; | |
61f33854 | 12088 | just_zero = FALSE; |
4f19785b WSI |
12089 | } else if (s[1] == 'b') { |
12090 | shift = 1; | |
12091 | s += 2; | |
61f33854 | 12092 | just_zero = FALSE; |
378cc40b | 12093 | } |
02aa26ce | 12094 | /* check for a decimal in disguise */ |
b78218b7 | 12095 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 12096 | goto decimal; |
02aa26ce | 12097 | /* so it must be octal */ |
928753ea | 12098 | else { |
378cc40b | 12099 | shift = 3; |
928753ea JH |
12100 | s++; |
12101 | } | |
12102 | ||
12103 | if (*s == '_') { | |
12104 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12105 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12106 | "Misplaced _ in number"); |
12107 | lastub = s++; | |
12108 | } | |
9e24b6e2 JH |
12109 | |
12110 | base = bases[shift]; | |
12111 | Base = Bases[shift]; | |
12112 | max = maxima[shift]; | |
02aa26ce | 12113 | |
4f19785b | 12114 | /* read the rest of the number */ |
378cc40b | 12115 | for (;;) { |
9e24b6e2 | 12116 | /* x is used in the overflow test, |
893fe2c2 | 12117 | b is the digit we're adding on. */ |
9e24b6e2 | 12118 | UV x, b; |
55497cff | 12119 | |
378cc40b | 12120 | switch (*s) { |
02aa26ce NT |
12121 | |
12122 | /* if we don't mention it, we're done */ | |
378cc40b LW |
12123 | default: |
12124 | goto out; | |
02aa26ce | 12125 | |
928753ea | 12126 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 12127 | case '_': |
041457d9 | 12128 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12129 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12130 | "Misplaced _ in number"); |
12131 | lastub = s++; | |
de3bb511 | 12132 | break; |
02aa26ce NT |
12133 | |
12134 | /* 8 and 9 are not octal */ | |
378cc40b | 12135 | case '8': case '9': |
4f19785b | 12136 | if (shift == 3) |
cea2e8a9 | 12137 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 12138 | /* FALL THROUGH */ |
02aa26ce NT |
12139 | |
12140 | /* octal digits */ | |
4f19785b | 12141 | case '2': case '3': case '4': |
378cc40b | 12142 | case '5': case '6': case '7': |
4f19785b | 12143 | if (shift == 1) |
cea2e8a9 | 12144 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
12145 | /* FALL THROUGH */ |
12146 | ||
12147 | case '0': case '1': | |
02aa26ce | 12148 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 12149 | goto digit; |
02aa26ce NT |
12150 | |
12151 | /* hex digits */ | |
378cc40b LW |
12152 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
12153 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 12154 | /* make sure they said 0x */ |
378cc40b LW |
12155 | if (shift != 4) |
12156 | goto out; | |
55497cff | 12157 | b = (*s++ & 7) + 9; |
02aa26ce NT |
12158 | |
12159 | /* Prepare to put the digit we have onto the end | |
12160 | of the number so far. We check for overflows. | |
12161 | */ | |
12162 | ||
55497cff | 12163 | digit: |
61f33854 | 12164 | just_zero = FALSE; |
9e24b6e2 JH |
12165 | if (!overflowed) { |
12166 | x = u << shift; /* make room for the digit */ | |
12167 | ||
12168 | if ((x >> shift) != u | |
12169 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
12170 | overflowed = TRUE; |
12171 | n = (NV) u; | |
767a6a26 | 12172 | if (ckWARN_d(WARN_OVERFLOW)) |
9014280d | 12173 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), |
9e24b6e2 JH |
12174 | "Integer overflow in %s number", |
12175 | base); | |
12176 | } else | |
12177 | u = x | b; /* add the digit to the end */ | |
12178 | } | |
12179 | if (overflowed) { | |
12180 | n *= nvshift[shift]; | |
12181 | /* If an NV has not enough bits in its | |
12182 | * mantissa to represent an UV this summing of | |
12183 | * small low-order numbers is a waste of time | |
12184 | * (because the NV cannot preserve the | |
12185 | * low-order bits anyway): we could just | |
12186 | * remember when did we overflow and in the | |
12187 | * end just multiply n by the right | |
12188 | * amount. */ | |
12189 | n += (NV) b; | |
55497cff | 12190 | } |
378cc40b LW |
12191 | break; |
12192 | } | |
12193 | } | |
02aa26ce NT |
12194 | |
12195 | /* if we get here, we had success: make a scalar value from | |
12196 | the number. | |
12197 | */ | |
378cc40b | 12198 | out: |
928753ea JH |
12199 | |
12200 | /* final misplaced underbar check */ | |
12201 | if (s[-1] == '_') { | |
12202 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12203 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
12204 | } |
12205 | ||
561b68a9 | 12206 | sv = newSV(0); |
9e24b6e2 | 12207 | if (overflowed) { |
041457d9 | 12208 | if (n > 4294967295.0 && ckWARN(WARN_PORTABLE)) |
9014280d | 12209 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
12210 | "%s number > %s non-portable", |
12211 | Base, max); | |
12212 | sv_setnv(sv, n); | |
12213 | } | |
12214 | else { | |
15041a67 | 12215 | #if UVSIZE > 4 |
041457d9 | 12216 | if (u > 0xffffffff && ckWARN(WARN_PORTABLE)) |
9014280d | 12217 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
12218 | "%s number > %s non-portable", |
12219 | Base, max); | |
2cc4c2dc | 12220 | #endif |
9e24b6e2 JH |
12221 | sv_setuv(sv, u); |
12222 | } | |
61f33854 | 12223 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
bfed75c6 | 12224 | sv = new_constant(start, s - start, "integer", |
eb0d8d16 | 12225 | sv, NULL, NULL, 0); |
61f33854 | 12226 | else if (PL_hints & HINT_NEW_BINARY) |
eb0d8d16 | 12227 | sv = new_constant(start, s - start, "binary", sv, NULL, NULL, 0); |
378cc40b LW |
12228 | } |
12229 | break; | |
02aa26ce NT |
12230 | |
12231 | /* | |
12232 | handle decimal numbers. | |
12233 | we're also sent here when we read a 0 as the first digit | |
12234 | */ | |
378cc40b LW |
12235 | case '1': case '2': case '3': case '4': case '5': |
12236 | case '6': case '7': case '8': case '9': case '.': | |
12237 | decimal: | |
3280af22 NIS |
12238 | d = PL_tokenbuf; |
12239 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 12240 | floatit = FALSE; |
02aa26ce NT |
12241 | |
12242 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 12243 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 12244 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
12245 | if -w is on |
12246 | */ | |
93a17b20 | 12247 | if (*s == '_') { |
041457d9 | 12248 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12249 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12250 | "Misplaced _ in number"); |
12251 | lastub = s++; | |
93a17b20 | 12252 | } |
fc36a67e | 12253 | else { |
02aa26ce | 12254 | /* check for end of fixed-length buffer */ |
fc36a67e | 12255 | if (d >= e) |
cea2e8a9 | 12256 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 12257 | /* if we're ok, copy the character */ |
378cc40b | 12258 | *d++ = *s++; |
fc36a67e | 12259 | } |
378cc40b | 12260 | } |
02aa26ce NT |
12261 | |
12262 | /* final misplaced underbar check */ | |
928753ea | 12263 | if (lastub && s == lastub + 1) { |
d008e5eb | 12264 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 12265 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 12266 | } |
02aa26ce NT |
12267 | |
12268 | /* read a decimal portion if there is one. avoid | |
12269 | 3..5 being interpreted as the number 3. followed | |
12270 | by .5 | |
12271 | */ | |
2f3197b3 | 12272 | if (*s == '.' && s[1] != '.') { |
79072805 | 12273 | floatit = TRUE; |
378cc40b | 12274 | *d++ = *s++; |
02aa26ce | 12275 | |
928753ea JH |
12276 | if (*s == '_') { |
12277 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12278 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12279 | "Misplaced _ in number"); |
12280 | lastub = s; | |
12281 | } | |
12282 | ||
12283 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 12284 | */ |
fc36a67e | 12285 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 12286 | /* fixed length buffer check */ |
fc36a67e | 12287 | if (d >= e) |
cea2e8a9 | 12288 | Perl_croak(aTHX_ number_too_long); |
928753ea | 12289 | if (*s == '_') { |
041457d9 | 12290 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12291 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12292 | "Misplaced _ in number"); |
12293 | lastub = s; | |
12294 | } | |
12295 | else | |
fc36a67e | 12296 | *d++ = *s; |
378cc40b | 12297 | } |
928753ea JH |
12298 | /* fractional part ending in underbar? */ |
12299 | if (s[-1] == '_') { | |
12300 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12301 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12302 | "Misplaced _ in number"); |
12303 | } | |
dd629d5b GS |
12304 | if (*s == '.' && isDIGIT(s[1])) { |
12305 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 12306 | s = start; |
dd629d5b GS |
12307 | goto vstring; |
12308 | } | |
378cc40b | 12309 | } |
02aa26ce NT |
12310 | |
12311 | /* read exponent part, if present */ | |
3792a11b | 12312 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
12313 | floatit = TRUE; |
12314 | s++; | |
02aa26ce NT |
12315 | |
12316 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 12317 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 12318 | |
7fd134d9 JH |
12319 | /* stray preinitial _ */ |
12320 | if (*s == '_') { | |
12321 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12322 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12323 | "Misplaced _ in number"); |
12324 | lastub = s++; | |
12325 | } | |
12326 | ||
02aa26ce | 12327 | /* allow positive or negative exponent */ |
378cc40b LW |
12328 | if (*s == '+' || *s == '-') |
12329 | *d++ = *s++; | |
02aa26ce | 12330 | |
7fd134d9 JH |
12331 | /* stray initial _ */ |
12332 | if (*s == '_') { | |
12333 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12334 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12335 | "Misplaced _ in number"); |
12336 | lastub = s++; | |
12337 | } | |
12338 | ||
7fd134d9 JH |
12339 | /* read digits of exponent */ |
12340 | while (isDIGIT(*s) || *s == '_') { | |
12341 | if (isDIGIT(*s)) { | |
12342 | if (d >= e) | |
12343 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 12344 | *d++ = *s++; |
7fd134d9 JH |
12345 | } |
12346 | else { | |
041457d9 DM |
12347 | if (((lastub && s == lastub + 1) || |
12348 | (!isDIGIT(s[1]) && s[1] != '_')) | |
12349 | && ckWARN(WARN_SYNTAX)) | |
9014280d | 12350 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 | 12351 | "Misplaced _ in number"); |
b3b48e3e | 12352 | lastub = s++; |
7fd134d9 | 12353 | } |
7fd134d9 | 12354 | } |
378cc40b | 12355 | } |
02aa26ce | 12356 | |
02aa26ce NT |
12357 | |
12358 | /* make an sv from the string */ | |
561b68a9 | 12359 | sv = newSV(0); |
097ee67d | 12360 | |
0b7fceb9 | 12361 | /* |
58bb9ec3 NC |
12362 | We try to do an integer conversion first if no characters |
12363 | indicating "float" have been found. | |
0b7fceb9 MU |
12364 | */ |
12365 | ||
12366 | if (!floatit) { | |
58bb9ec3 | 12367 | UV uv; |
6136c704 | 12368 | const int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); |
58bb9ec3 NC |
12369 | |
12370 | if (flags == IS_NUMBER_IN_UV) { | |
12371 | if (uv <= IV_MAX) | |
86554af2 | 12372 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 12373 | else |
c239479b | 12374 | sv_setuv(sv, uv); |
58bb9ec3 NC |
12375 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
12376 | if (uv <= (UV) IV_MIN) | |
12377 | sv_setiv(sv, -(IV)uv); | |
12378 | else | |
12379 | floatit = TRUE; | |
12380 | } else | |
12381 | floatit = TRUE; | |
12382 | } | |
0b7fceb9 | 12383 | if (floatit) { |
58bb9ec3 NC |
12384 | /* terminate the string */ |
12385 | *d = '\0'; | |
86554af2 JH |
12386 | nv = Atof(PL_tokenbuf); |
12387 | sv_setnv(sv, nv); | |
12388 | } | |
86554af2 | 12389 | |
eb0d8d16 NC |
12390 | if ( floatit |
12391 | ? (PL_hints & HINT_NEW_FLOAT) : (PL_hints & HINT_NEW_INTEGER) ) { | |
12392 | const char *const key = floatit ? "float" : "integer"; | |
12393 | const STRLEN keylen = floatit ? 5 : 7; | |
12394 | sv = S_new_constant(aTHX_ PL_tokenbuf, d - PL_tokenbuf, | |
12395 | key, keylen, sv, NULL, NULL, 0); | |
12396 | } | |
378cc40b | 12397 | break; |
0b7fceb9 | 12398 | |
e312add1 | 12399 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 12400 | case 'v': |
dd629d5b | 12401 | vstring: |
561b68a9 | 12402 | sv = newSV(5); /* preallocate storage space */ |
65b06e02 | 12403 | s = scan_vstring(s, PL_bufend, sv); |
a7cb1f99 | 12404 | break; |
79072805 | 12405 | } |
a687059c | 12406 | |
02aa26ce NT |
12407 | /* make the op for the constant and return */ |
12408 | ||
a86a20aa | 12409 | if (sv) |
b73d6f50 | 12410 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 12411 | else |
5f66b61c | 12412 | lvalp->opval = NULL; |
a687059c | 12413 | |
73d840c0 | 12414 | return (char *)s; |
378cc40b LW |
12415 | } |
12416 | ||
76e3520e | 12417 | STATIC char * |
cea2e8a9 | 12418 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 12419 | { |
97aff369 | 12420 | dVAR; |
79072805 | 12421 | register char *eol; |
378cc40b | 12422 | register char *t; |
6136c704 | 12423 | SV * const stuff = newSVpvs(""); |
79072805 | 12424 | bool needargs = FALSE; |
c5ee2135 | 12425 | bool eofmt = FALSE; |
5db06880 NC |
12426 | #ifdef PERL_MAD |
12427 | char *tokenstart = s; | |
4f61fd4b JC |
12428 | SV* savewhite = NULL; |
12429 | ||
5db06880 | 12430 | if (PL_madskills) { |
cd81e915 NC |
12431 | savewhite = PL_thiswhite; |
12432 | PL_thiswhite = 0; | |
5db06880 NC |
12433 | } |
12434 | #endif | |
378cc40b | 12435 | |
7918f24d NC |
12436 | PERL_ARGS_ASSERT_SCAN_FORMLINE; |
12437 | ||
79072805 | 12438 | while (!needargs) { |
a1b95068 | 12439 | if (*s == '.') { |
c35e046a | 12440 | t = s+1; |
51882d45 | 12441 | #ifdef PERL_STRICT_CR |
c35e046a AL |
12442 | while (SPACE_OR_TAB(*t)) |
12443 | t++; | |
51882d45 | 12444 | #else |
c35e046a AL |
12445 | while (SPACE_OR_TAB(*t) || *t == '\r') |
12446 | t++; | |
51882d45 | 12447 | #endif |
c5ee2135 WL |
12448 | if (*t == '\n' || t == PL_bufend) { |
12449 | eofmt = TRUE; | |
79072805 | 12450 | break; |
c5ee2135 | 12451 | } |
79072805 | 12452 | } |
3280af22 | 12453 | if (PL_in_eval && !PL_rsfp) { |
07409e01 | 12454 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 12455 | if (!eol++) |
3280af22 | 12456 | eol = PL_bufend; |
0f85fab0 LW |
12457 | } |
12458 | else | |
3280af22 | 12459 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 12460 | if (*s != '#') { |
a0d0e21e LW |
12461 | for (t = s; t < eol; t++) { |
12462 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
12463 | needargs = FALSE; | |
12464 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 12465 | } |
a0d0e21e LW |
12466 | if (*t == '@' || *t == '^') |
12467 | needargs = TRUE; | |
378cc40b | 12468 | } |
7121b347 MG |
12469 | if (eol > s) { |
12470 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 12471 | #ifndef PERL_STRICT_CR |
7121b347 MG |
12472 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
12473 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
12474 | end[-2] = '\n'; | |
12475 | end[-1] = '\0'; | |
b162af07 | 12476 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 12477 | } |
2dc4c65b | 12478 | #endif |
7121b347 MG |
12479 | } |
12480 | else | |
12481 | break; | |
79072805 | 12482 | } |
95a20fc0 | 12483 | s = (char*)eol; |
3280af22 | 12484 | if (PL_rsfp) { |
5db06880 NC |
12485 | #ifdef PERL_MAD |
12486 | if (PL_madskills) { | |
cd81e915 NC |
12487 | if (PL_thistoken) |
12488 | sv_catpvn(PL_thistoken, tokenstart, PL_bufend - tokenstart); | |
5db06880 | 12489 | else |
cd81e915 | 12490 | PL_thistoken = newSVpvn(tokenstart, PL_bufend - tokenstart); |
5db06880 NC |
12491 | } |
12492 | #endif | |
3280af22 | 12493 | s = filter_gets(PL_linestr, PL_rsfp, 0); |
5db06880 NC |
12494 | #ifdef PERL_MAD |
12495 | tokenstart = PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
12496 | #else | |
3280af22 | 12497 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); |
5db06880 | 12498 | #endif |
3280af22 | 12499 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); |
bd61b366 | 12500 | PL_last_lop = PL_last_uni = NULL; |
79072805 | 12501 | if (!s) { |
3280af22 | 12502 | s = PL_bufptr; |
378cc40b LW |
12503 | break; |
12504 | } | |
378cc40b | 12505 | } |
463ee0b2 | 12506 | incline(s); |
79072805 | 12507 | } |
a0d0e21e LW |
12508 | enough: |
12509 | if (SvCUR(stuff)) { | |
3280af22 | 12510 | PL_expect = XTERM; |
79072805 | 12511 | if (needargs) { |
3280af22 | 12512 | PL_lex_state = LEX_NORMAL; |
cd81e915 | 12513 | start_force(PL_curforce); |
9ded7720 | 12514 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 LW |
12515 | force_next(','); |
12516 | } | |
a0d0e21e | 12517 | else |
3280af22 | 12518 | PL_lex_state = LEX_FORMLINE; |
1bd51a4c | 12519 | if (!IN_BYTES) { |
95a20fc0 | 12520 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
1bd51a4c IH |
12521 | SvUTF8_on(stuff); |
12522 | else if (PL_encoding) | |
12523 | sv_recode_to_utf8(stuff, PL_encoding); | |
12524 | } | |
cd81e915 | 12525 | start_force(PL_curforce); |
9ded7720 | 12526 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 12527 | force_next(THING); |
cd81e915 | 12528 | start_force(PL_curforce); |
9ded7720 | 12529 | NEXTVAL_NEXTTOKE.ival = OP_FORMLINE; |
79072805 | 12530 | force_next(LSTOP); |
378cc40b | 12531 | } |
79072805 | 12532 | else { |
8990e307 | 12533 | SvREFCNT_dec(stuff); |
c5ee2135 WL |
12534 | if (eofmt) |
12535 | PL_lex_formbrack = 0; | |
3280af22 | 12536 | PL_bufptr = s; |
79072805 | 12537 | } |
5db06880 NC |
12538 | #ifdef PERL_MAD |
12539 | if (PL_madskills) { | |
cd81e915 NC |
12540 | if (PL_thistoken) |
12541 | sv_catpvn(PL_thistoken, tokenstart, s - tokenstart); | |
5db06880 | 12542 | else |
cd81e915 NC |
12543 | PL_thistoken = newSVpvn(tokenstart, s - tokenstart); |
12544 | PL_thiswhite = savewhite; | |
5db06880 NC |
12545 | } |
12546 | #endif | |
79072805 | 12547 | return s; |
378cc40b | 12548 | } |
a687059c | 12549 | |
ba6d6ac9 | 12550 | I32 |
864dbfa3 | 12551 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 12552 | { |
97aff369 | 12553 | dVAR; |
a3b680e6 | 12554 | const I32 oldsavestack_ix = PL_savestack_ix; |
6136c704 | 12555 | CV* const outsidecv = PL_compcv; |
8990e307 | 12556 | |
3280af22 NIS |
12557 | if (PL_compcv) { |
12558 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 12559 | } |
7766f137 | 12560 | SAVEI32(PL_subline); |
3280af22 | 12561 | save_item(PL_subname); |
3280af22 | 12562 | SAVESPTR(PL_compcv); |
3280af22 | 12563 | |
ea726b52 | 12564 | PL_compcv = MUTABLE_CV(newSV_type(is_format ? SVt_PVFM : SVt_PVCV)); |
3280af22 NIS |
12565 | CvFLAGS(PL_compcv) |= flags; |
12566 | ||
57843af0 | 12567 | PL_subline = CopLINE(PL_curcop); |
dd2155a4 | 12568 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
ea726b52 | 12569 | CvOUTSIDE(PL_compcv) = MUTABLE_CV(SvREFCNT_inc_simple(outsidecv)); |
a3985cdc | 12570 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
748a9306 | 12571 | |
8990e307 LW |
12572 | return oldsavestack_ix; |
12573 | } | |
12574 | ||
084592ab CN |
12575 | #ifdef __SC__ |
12576 | #pragma segment Perl_yylex | |
12577 | #endif | |
af41e527 NC |
12578 | static int |
12579 | S_yywarn(pTHX_ const char *const s) | |
8990e307 | 12580 | { |
97aff369 | 12581 | dVAR; |
7918f24d NC |
12582 | |
12583 | PERL_ARGS_ASSERT_YYWARN; | |
12584 | ||
faef0170 | 12585 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 12586 | yyerror(s); |
faef0170 | 12587 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 12588 | return 0; |
8990e307 LW |
12589 | } |
12590 | ||
12591 | int | |
15f169a1 | 12592 | Perl_yyerror(pTHX_ const char *const s) |
463ee0b2 | 12593 | { |
97aff369 | 12594 | dVAR; |
bfed75c6 AL |
12595 | const char *where = NULL; |
12596 | const char *context = NULL; | |
68dc0745 | 12597 | int contlen = -1; |
46fc3d4c | 12598 | SV *msg; |
5912531f | 12599 | int yychar = PL_parser->yychar; |
463ee0b2 | 12600 | |
7918f24d NC |
12601 | PERL_ARGS_ASSERT_YYERROR; |
12602 | ||
3280af22 | 12603 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 12604 | where = "at EOF"; |
8bcfe651 TM |
12605 | else if (PL_oldoldbufptr && PL_bufptr > PL_oldoldbufptr && |
12606 | PL_bufptr - PL_oldoldbufptr < 200 && PL_oldoldbufptr != PL_oldbufptr && | |
12607 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12608 | /* |
12609 | Only for NetWare: | |
12610 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12611 | when the script has error such as not having the closing quotes like: | |
12612 | if ($var eq "value) | |
12613 | Checking of white spaces is anyway done in NetWare code. | |
12614 | */ | |
12615 | #ifndef NETWARE | |
3280af22 NIS |
12616 | while (isSPACE(*PL_oldoldbufptr)) |
12617 | PL_oldoldbufptr++; | |
f355267c | 12618 | #endif |
3280af22 NIS |
12619 | context = PL_oldoldbufptr; |
12620 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 12621 | } |
8bcfe651 TM |
12622 | else if (PL_oldbufptr && PL_bufptr > PL_oldbufptr && |
12623 | PL_bufptr - PL_oldbufptr < 200 && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12624 | /* |
12625 | Only for NetWare: | |
12626 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12627 | when the script has error such as not having the closing quotes like: | |
12628 | if ($var eq "value) | |
12629 | Checking of white spaces is anyway done in NetWare code. | |
12630 | */ | |
12631 | #ifndef NETWARE | |
3280af22 NIS |
12632 | while (isSPACE(*PL_oldbufptr)) |
12633 | PL_oldbufptr++; | |
f355267c | 12634 | #endif |
3280af22 NIS |
12635 | context = PL_oldbufptr; |
12636 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
12637 | } |
12638 | else if (yychar > 255) | |
68dc0745 | 12639 | where = "next token ???"; |
12fbd33b | 12640 | else if (yychar == -2) { /* YYEMPTY */ |
3280af22 NIS |
12641 | if (PL_lex_state == LEX_NORMAL || |
12642 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 12643 | where = "at end of line"; |
3280af22 | 12644 | else if (PL_lex_inpat) |
68dc0745 | 12645 | where = "within pattern"; |
463ee0b2 | 12646 | else |
68dc0745 | 12647 | where = "within string"; |
463ee0b2 | 12648 | } |
46fc3d4c | 12649 | else { |
84bafc02 | 12650 | SV * const where_sv = newSVpvs_flags("next char ", SVs_TEMP); |
46fc3d4c | 12651 | if (yychar < 32) |
cea2e8a9 | 12652 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
5e7aa789 | 12653 | else if (isPRINT_LC(yychar)) { |
88c9ea1e | 12654 | const char string = yychar; |
5e7aa789 NC |
12655 | sv_catpvn(where_sv, &string, 1); |
12656 | } | |
463ee0b2 | 12657 | else |
cea2e8a9 | 12658 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
95a20fc0 | 12659 | where = SvPVX_const(where_sv); |
463ee0b2 | 12660 | } |
46fc3d4c | 12661 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 12662 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 12663 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 12664 | if (context) |
cea2e8a9 | 12665 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 12666 | else |
cea2e8a9 | 12667 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 12668 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 12669 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 12670 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 12671 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 12672 | PL_multi_end = 0; |
a0d0e21e | 12673 | } |
500960a6 RD |
12674 | if (PL_in_eval & EVAL_WARNONLY) { |
12675 | if (ckWARN_d(WARN_SYNTAX)) | |
12676 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, SVfARG(msg)); | |
12677 | } | |
463ee0b2 | 12678 | else |
5a844595 | 12679 | qerror(msg); |
c7d6bfb2 GS |
12680 | if (PL_error_count >= 10) { |
12681 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 12682 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
be2597df | 12683 | SVfARG(ERRSV), OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
12684 | else |
12685 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 12686 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 12687 | } |
3280af22 | 12688 | PL_in_my = 0; |
5c284bb0 | 12689 | PL_in_my_stash = NULL; |
463ee0b2 LW |
12690 | return 0; |
12691 | } | |
084592ab CN |
12692 | #ifdef __SC__ |
12693 | #pragma segment Main | |
12694 | #endif | |
4e35701f | 12695 | |
b250498f | 12696 | STATIC char* |
3ae08724 | 12697 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 12698 | { |
97aff369 | 12699 | dVAR; |
f54cb97a | 12700 | const STRLEN slen = SvCUR(PL_linestr); |
7918f24d NC |
12701 | |
12702 | PERL_ARGS_ASSERT_SWALLOW_BOM; | |
12703 | ||
7aa207d6 | 12704 | switch (s[0]) { |
4e553d73 NIS |
12705 | case 0xFF: |
12706 | if (s[1] == 0xFE) { | |
7aa207d6 | 12707 | /* UTF-16 little-endian? (or UTF32-LE?) */ |
3ae08724 | 12708 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
7aa207d6 | 12709 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-LE"); |
01ec43d0 | 12710 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12711 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF16-LE script encoding (BOM)\n"); |
3ae08724 | 12712 | s += 2; |
7aa207d6 | 12713 | utf16le: |
dea0fc0b JH |
12714 | if (PL_bufend > (char*)s) { |
12715 | U8 *news; | |
12716 | I32 newlen; | |
12717 | ||
12718 | filter_add(utf16rev_textfilter, NULL); | |
a02a5408 | 12719 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd | 12720 | utf16_to_utf8_reversed(s, news, |
aed58286 | 12721 | PL_bufend - (char*)s - 1, |
1de9afcd | 12722 | &newlen); |
7aa207d6 | 12723 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
5db06880 NC |
12724 | #ifdef PERL_MAD |
12725 | s = (U8*)SvPVX(PL_linestr); | |
12726 | Copy(news, s, newlen, U8); | |
12727 | s[newlen] = '\0'; | |
12728 | #endif | |
dea0fc0b | 12729 | Safefree(news); |
7aa207d6 JH |
12730 | SvUTF8_on(PL_linestr); |
12731 | s = (U8*)SvPVX(PL_linestr); | |
5db06880 NC |
12732 | #ifdef PERL_MAD |
12733 | /* FIXME - is this a general bug fix? */ | |
12734 | s[newlen] = '\0'; | |
12735 | #endif | |
7aa207d6 | 12736 | PL_bufend = SvPVX(PL_linestr) + newlen; |
dea0fc0b | 12737 | } |
b250498f | 12738 | #else |
7aa207d6 | 12739 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-LE"); |
b250498f | 12740 | #endif |
01ec43d0 GS |
12741 | } |
12742 | break; | |
78ae23f5 | 12743 | case 0xFE: |
7aa207d6 | 12744 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 12745 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12746 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b | 12747 | s += 2; |
7aa207d6 | 12748 | utf16be: |
dea0fc0b JH |
12749 | if (PL_bufend > (char *)s) { |
12750 | U8 *news; | |
12751 | I32 newlen; | |
12752 | ||
12753 | filter_add(utf16_textfilter, NULL); | |
a02a5408 | 12754 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd RGS |
12755 | utf16_to_utf8(s, news, |
12756 | PL_bufend - (char*)s, | |
12757 | &newlen); | |
7aa207d6 | 12758 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
dea0fc0b | 12759 | Safefree(news); |
7aa207d6 JH |
12760 | SvUTF8_on(PL_linestr); |
12761 | s = (U8*)SvPVX(PL_linestr); | |
12762 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
dea0fc0b | 12763 | } |
b250498f | 12764 | #else |
7aa207d6 | 12765 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-BE"); |
b250498f | 12766 | #endif |
01ec43d0 GS |
12767 | } |
12768 | break; | |
3ae08724 GS |
12769 | case 0xEF: |
12770 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
7aa207d6 | 12771 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
12772 | s += 3; /* UTF-8 */ |
12773 | } | |
12774 | break; | |
12775 | case 0: | |
7aa207d6 JH |
12776 | if (slen > 3) { |
12777 | if (s[1] == 0) { | |
12778 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
12779 | /* UTF-32 big-endian */ | |
12780 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-BE"); | |
12781 | } | |
12782 | } | |
12783 | else if (s[2] == 0 && s[3] != 0) { | |
12784 | /* Leading bytes | |
12785 | * 00 xx 00 xx | |
12786 | * are a good indicator of UTF-16BE. */ | |
12787 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); | |
12788 | goto utf16be; | |
12789 | } | |
01ec43d0 | 12790 | } |
e294cc5d JH |
12791 | #ifdef EBCDIC |
12792 | case 0xDD: | |
12793 | if (slen > 3 && s[1] == 0x73 && s[2] == 0x66 && s[3] == 0x73) { | |
12794 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); | |
12795 | s += 4; /* UTF-8 */ | |
12796 | } | |
12797 | break; | |
12798 | #endif | |
12799 | ||
7aa207d6 JH |
12800 | default: |
12801 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
12802 | /* Leading bytes | |
12803 | * xx 00 xx 00 | |
12804 | * are a good indicator of UTF-16LE. */ | |
12805 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); | |
12806 | goto utf16le; | |
12807 | } | |
01ec43d0 | 12808 | } |
b8f84bb2 | 12809 | return (char*)s; |
b250498f | 12810 | } |
4755096e | 12811 | |
6e3aabd6 GS |
12812 | |
12813 | #ifndef PERL_NO_UTF16_FILTER | |
12814 | static I32 | |
acfe0abc | 12815 | utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12816 | { |
97aff369 | 12817 | dVAR; |
f54cb97a AL |
12818 | const STRLEN old = SvCUR(sv); |
12819 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12820 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12821 | "utf16_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12822 | FPTR2DPTR(void *, utf16_textfilter), |
12823 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12824 | if (count) { |
12825 | U8* tmps; | |
dea0fc0b | 12826 | I32 newlen; |
a02a5408 | 12827 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12828 | Copy(SvPVX_const(sv), tmps, old, char); |
12829 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12830 | SvCUR(sv) - old, &newlen); |
12831 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12832 | } |
1de9afcd RGS |
12833 | DEBUG_P({sv_dump(sv);}); |
12834 | return SvCUR(sv); | |
6e3aabd6 GS |
12835 | } |
12836 | ||
12837 | static I32 | |
acfe0abc | 12838 | utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12839 | { |
97aff369 | 12840 | dVAR; |
f54cb97a AL |
12841 | const STRLEN old = SvCUR(sv); |
12842 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12843 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12844 | "utf16rev_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12845 | FPTR2DPTR(void *, utf16rev_textfilter), |
12846 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12847 | if (count) { |
12848 | U8* tmps; | |
dea0fc0b | 12849 | I32 newlen; |
a02a5408 | 12850 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12851 | Copy(SvPVX_const(sv), tmps, old, char); |
12852 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12853 | SvCUR(sv) - old, &newlen); |
12854 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12855 | } |
1de9afcd | 12856 | DEBUG_P({ sv_dump(sv); }); |
6e3aabd6 GS |
12857 | return count; |
12858 | } | |
12859 | #endif | |
9f4817db | 12860 | |
f333445c JP |
12861 | /* |
12862 | Returns a pointer to the next character after the parsed | |
12863 | vstring, as well as updating the passed in sv. | |
12864 | ||
12865 | Function must be called like | |
12866 | ||
561b68a9 | 12867 | sv = newSV(5); |
65b06e02 | 12868 | s = scan_vstring(s,e,sv); |
f333445c | 12869 | |
65b06e02 | 12870 | where s and e are the start and end of the string. |
f333445c JP |
12871 | The sv should already be large enough to store the vstring |
12872 | passed in, for performance reasons. | |
12873 | ||
12874 | */ | |
12875 | ||
12876 | char * | |
15f169a1 | 12877 | Perl_scan_vstring(pTHX_ const char *s, const char *const e, SV *sv) |
f333445c | 12878 | { |
97aff369 | 12879 | dVAR; |
bfed75c6 AL |
12880 | const char *pos = s; |
12881 | const char *start = s; | |
7918f24d NC |
12882 | |
12883 | PERL_ARGS_ASSERT_SCAN_VSTRING; | |
12884 | ||
f333445c | 12885 | if (*pos == 'v') pos++; /* get past 'v' */ |
65b06e02 | 12886 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
3e884cbf | 12887 | pos++; |
f333445c JP |
12888 | if ( *pos != '.') { |
12889 | /* this may not be a v-string if followed by => */ | |
bfed75c6 | 12890 | const char *next = pos; |
65b06e02 | 12891 | while (next < e && isSPACE(*next)) |
8fc7bb1c | 12892 | ++next; |
65b06e02 | 12893 | if ((e - next) >= 2 && *next == '=' && next[1] == '>' ) { |
f333445c JP |
12894 | /* return string not v-string */ |
12895 | sv_setpvn(sv,(char *)s,pos-s); | |
73d840c0 | 12896 | return (char *)pos; |
f333445c JP |
12897 | } |
12898 | } | |
12899 | ||
12900 | if (!isALPHA(*pos)) { | |
89ebb4a3 | 12901 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
f333445c | 12902 | |
d4c19fe8 AL |
12903 | if (*s == 'v') |
12904 | s++; /* get past 'v' */ | |
f333445c | 12905 | |
76f68e9b | 12906 | sv_setpvs(sv, ""); |
f333445c JP |
12907 | |
12908 | for (;;) { | |
d4c19fe8 | 12909 | /* this is atoi() that tolerates underscores */ |
0bd48802 AL |
12910 | U8 *tmpend; |
12911 | UV rev = 0; | |
d4c19fe8 AL |
12912 | const char *end = pos; |
12913 | UV mult = 1; | |
12914 | while (--end >= s) { | |
12915 | if (*end != '_') { | |
12916 | const UV orev = rev; | |
f333445c JP |
12917 | rev += (*end - '0') * mult; |
12918 | mult *= 10; | |
12919 | if (orev > rev && ckWARN_d(WARN_OVERFLOW)) | |
12920 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), | |
12921 | "Integer overflow in decimal number"); | |
12922 | } | |
12923 | } | |
12924 | #ifdef EBCDIC | |
12925 | if (rev > 0x7FFFFFFF) | |
12926 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
12927 | #endif | |
12928 | /* Append native character for the rev point */ | |
12929 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
12930 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
12931 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
12932 | SvUTF8_on(sv); | |
65b06e02 | 12933 | if (pos + 1 < e && *pos == '.' && isDIGIT(pos[1])) |
f333445c JP |
12934 | s = ++pos; |
12935 | else { | |
12936 | s = pos; | |
12937 | break; | |
12938 | } | |
65b06e02 | 12939 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
f333445c JP |
12940 | pos++; |
12941 | } | |
12942 | SvPOK_on(sv); | |
12943 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
12944 | SvRMAGICAL_on(sv); | |
12945 | } | |
73d840c0 | 12946 | return (char *)s; |
f333445c JP |
12947 | } |
12948 | ||
1da4ca5f NC |
12949 | /* |
12950 | * Local variables: | |
12951 | * c-indentation-style: bsd | |
12952 | * c-basic-offset: 4 | |
12953 | * indent-tabs-mode: t | |
12954 | * End: | |
12955 | * | |
37442d52 RGS |
12956 | * ex: set ts=8 sts=4 sw=4 noet: |
12957 | */ |