Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* toke.c |
a687059c | 2 | * |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
6ef55633 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 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 | /* | |
12 | * "It all comes from here, the stench and the peril." --Frodo | |
378cc40b LW |
13 | */ |
14 | ||
9cbb5ea2 GS |
15 | /* |
16 | * This file is the lexer for Perl. It's closely linked to the | |
4e553d73 | 17 | * parser, perly.y. |
ffb4593c NT |
18 | * |
19 | * The main routine is yylex(), which returns the next token. | |
20 | */ | |
21 | ||
378cc40b | 22 | #include "EXTERN.h" |
864dbfa3 | 23 | #define PERL_IN_TOKE_C |
378cc40b | 24 | #include "perl.h" |
378cc40b | 25 | |
eb0d8d16 NC |
26 | #define new_constant(a,b,c,d,e,f,g) \ |
27 | S_new_constant(aTHX_ a,b,STR_WITH_LEN(c),d,e,f, g) | |
28 | ||
6154021b | 29 | #define pl_yylval (PL_parser->yylval) |
d3b6f988 | 30 | |
acdf0a21 DM |
31 | /* YYINITDEPTH -- initial size of the parser's stacks. */ |
32 | #define YYINITDEPTH 200 | |
33 | ||
199e78b7 DM |
34 | /* XXX temporary backwards compatibility */ |
35 | #define PL_lex_brackets (PL_parser->lex_brackets) | |
36 | #define PL_lex_brackstack (PL_parser->lex_brackstack) | |
37 | #define PL_lex_casemods (PL_parser->lex_casemods) | |
38 | #define PL_lex_casestack (PL_parser->lex_casestack) | |
39 | #define PL_lex_defer (PL_parser->lex_defer) | |
40 | #define PL_lex_dojoin (PL_parser->lex_dojoin) | |
41 | #define PL_lex_expect (PL_parser->lex_expect) | |
42 | #define PL_lex_formbrack (PL_parser->lex_formbrack) | |
43 | #define PL_lex_inpat (PL_parser->lex_inpat) | |
44 | #define PL_lex_inwhat (PL_parser->lex_inwhat) | |
45 | #define PL_lex_op (PL_parser->lex_op) | |
46 | #define PL_lex_repl (PL_parser->lex_repl) | |
47 | #define PL_lex_starts (PL_parser->lex_starts) | |
48 | #define PL_lex_stuff (PL_parser->lex_stuff) | |
49 | #define PL_multi_start (PL_parser->multi_start) | |
50 | #define PL_multi_open (PL_parser->multi_open) | |
51 | #define PL_multi_close (PL_parser->multi_close) | |
52 | #define PL_pending_ident (PL_parser->pending_ident) | |
53 | #define PL_preambled (PL_parser->preambled) | |
54 | #define PL_sublex_info (PL_parser->sublex_info) | |
bdc0bf6f | 55 | #define PL_linestr (PL_parser->linestr) |
c2598295 DM |
56 | #define PL_expect (PL_parser->expect) |
57 | #define PL_copline (PL_parser->copline) | |
f06b5848 DM |
58 | #define PL_bufptr (PL_parser->bufptr) |
59 | #define PL_oldbufptr (PL_parser->oldbufptr) | |
60 | #define PL_oldoldbufptr (PL_parser->oldoldbufptr) | |
61 | #define PL_linestart (PL_parser->linestart) | |
62 | #define PL_bufend (PL_parser->bufend) | |
63 | #define PL_last_uni (PL_parser->last_uni) | |
64 | #define PL_last_lop (PL_parser->last_lop) | |
65 | #define PL_last_lop_op (PL_parser->last_lop_op) | |
bc177e6b | 66 | #define PL_lex_state (PL_parser->lex_state) |
2f9285f8 | 67 | #define PL_rsfp (PL_parser->rsfp) |
5486870f | 68 | #define PL_rsfp_filters (PL_parser->rsfp_filters) |
12bd6ede DM |
69 | #define PL_in_my (PL_parser->in_my) |
70 | #define PL_in_my_stash (PL_parser->in_my_stash) | |
14047fc9 | 71 | #define PL_tokenbuf (PL_parser->tokenbuf) |
670a9cb2 | 72 | #define PL_multi_end (PL_parser->multi_end) |
13765c85 | 73 | #define PL_error_count (PL_parser->error_count) |
199e78b7 DM |
74 | |
75 | #ifdef PERL_MAD | |
76 | # define PL_endwhite (PL_parser->endwhite) | |
77 | # define PL_faketokens (PL_parser->faketokens) | |
78 | # define PL_lasttoke (PL_parser->lasttoke) | |
79 | # define PL_nextwhite (PL_parser->nextwhite) | |
80 | # define PL_realtokenstart (PL_parser->realtokenstart) | |
81 | # define PL_skipwhite (PL_parser->skipwhite) | |
82 | # define PL_thisclose (PL_parser->thisclose) | |
83 | # define PL_thismad (PL_parser->thismad) | |
84 | # define PL_thisopen (PL_parser->thisopen) | |
85 | # define PL_thisstuff (PL_parser->thisstuff) | |
86 | # define PL_thistoken (PL_parser->thistoken) | |
87 | # define PL_thiswhite (PL_parser->thiswhite) | |
fb205e7a DM |
88 | # define PL_thiswhite (PL_parser->thiswhite) |
89 | # define PL_nexttoke (PL_parser->nexttoke) | |
90 | # define PL_curforce (PL_parser->curforce) | |
91 | #else | |
92 | # define PL_nexttoke (PL_parser->nexttoke) | |
93 | # define PL_nexttype (PL_parser->nexttype) | |
94 | # define PL_nextval (PL_parser->nextval) | |
199e78b7 DM |
95 | #endif |
96 | ||
3cbf51f5 DM |
97 | static int |
98 | S_pending_ident(pTHX); | |
199e78b7 | 99 | |
0bd48802 | 100 | static const char ident_too_long[] = "Identifier too long"; |
c445ea15 | 101 | static const char commaless_variable_list[] = "comma-less variable list"; |
8903cb82 | 102 | |
6e3aabd6 | 103 | #ifndef PERL_NO_UTF16_FILTER |
acfe0abc GS |
104 | static I32 utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen); |
105 | static I32 utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen); | |
6e3aabd6 | 106 | #endif |
51371543 | 107 | |
29595ff2 | 108 | #ifdef PERL_MAD |
29595ff2 | 109 | # define CURMAD(slot,sv) if (PL_madskills) { curmad(slot,sv); sv = 0; } |
cd81e915 | 110 | # define NEXTVAL_NEXTTOKE PL_nexttoke[PL_curforce].next_val |
9ded7720 | 111 | #else |
5db06880 | 112 | # define CURMAD(slot,sv) |
9ded7720 | 113 | # define NEXTVAL_NEXTTOKE PL_nextval[PL_nexttoke] |
29595ff2 NC |
114 | #endif |
115 | ||
9059aa12 LW |
116 | #define XFAKEBRACK 128 |
117 | #define XENUMMASK 127 | |
118 | ||
39e02b42 JH |
119 | #ifdef USE_UTF8_SCRIPTS |
120 | # define UTF (!IN_BYTES) | |
2b9d42f0 | 121 | #else |
746b446a | 122 | # define UTF ((PL_linestr && DO_UTF8(PL_linestr)) || (PL_hints & HINT_UTF8)) |
2b9d42f0 | 123 | #endif |
a0ed51b3 | 124 | |
61f0cdd9 | 125 | /* In variables named $^X, these are the legal values for X. |
2b92dfce GS |
126 | * 1999-02-27 mjd-perl-patch@plover.com */ |
127 | #define isCONTROLVAR(x) (isUPPER(x) || strchr("[\\]^_?", (x))) | |
128 | ||
bf4acbe4 GS |
129 | /* On MacOS, respect nonbreaking spaces */ |
130 | #ifdef MACOS_TRADITIONAL | |
131 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\312'||(c)=='\t') | |
132 | #else | |
133 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\t') | |
134 | #endif | |
135 | ||
ffb4593c NT |
136 | /* LEX_* are values for PL_lex_state, the state of the lexer. |
137 | * They are arranged oddly so that the guard on the switch statement | |
79072805 LW |
138 | * can get by with a single comparison (if the compiler is smart enough). |
139 | */ | |
140 | ||
fb73857a | 141 | /* #define LEX_NOTPARSING 11 is done in perl.h. */ |
142 | ||
b6007c36 DM |
143 | #define LEX_NORMAL 10 /* normal code (ie not within "...") */ |
144 | #define LEX_INTERPNORMAL 9 /* code within a string, eg "$foo[$x+1]" */ | |
145 | #define LEX_INTERPCASEMOD 8 /* expecting a \U, \Q or \E etc */ | |
146 | #define LEX_INTERPPUSH 7 /* starting a new sublex parse level */ | |
147 | #define LEX_INTERPSTART 6 /* expecting the start of a $var */ | |
148 | ||
149 | /* at end of code, eg "$x" followed by: */ | |
150 | #define LEX_INTERPEND 5 /* ... eg not one of [, { or -> */ | |
151 | #define LEX_INTERPENDMAYBE 4 /* ... eg one of [, { or -> */ | |
152 | ||
153 | #define LEX_INTERPCONCAT 3 /* expecting anything, eg at start of | |
154 | string or after \E, $foo, etc */ | |
155 | #define LEX_INTERPCONST 2 /* NOT USED */ | |
156 | #define LEX_FORMLINE 1 /* expecting a format line */ | |
157 | #define LEX_KNOWNEXT 0 /* next token known; just return it */ | |
158 | ||
79072805 | 159 | |
bbf60fe6 | 160 | #ifdef DEBUGGING |
27da23d5 | 161 | static const char* const lex_state_names[] = { |
bbf60fe6 DM |
162 | "KNOWNEXT", |
163 | "FORMLINE", | |
164 | "INTERPCONST", | |
165 | "INTERPCONCAT", | |
166 | "INTERPENDMAYBE", | |
167 | "INTERPEND", | |
168 | "INTERPSTART", | |
169 | "INTERPPUSH", | |
170 | "INTERPCASEMOD", | |
171 | "INTERPNORMAL", | |
172 | "NORMAL" | |
173 | }; | |
174 | #endif | |
175 | ||
79072805 LW |
176 | #ifdef ff_next |
177 | #undef ff_next | |
d48672a2 LW |
178 | #endif |
179 | ||
79072805 | 180 | #include "keywords.h" |
fe14fcc3 | 181 | |
ffb4593c NT |
182 | /* CLINE is a macro that ensures PL_copline has a sane value */ |
183 | ||
ae986130 LW |
184 | #ifdef CLINE |
185 | #undef CLINE | |
186 | #endif | |
57843af0 | 187 | #define CLINE (PL_copline = (CopLINE(PL_curcop) < PL_copline ? CopLINE(PL_curcop) : PL_copline)) |
3280af22 | 188 | |
5db06880 | 189 | #ifdef PERL_MAD |
29595ff2 NC |
190 | # define SKIPSPACE0(s) skipspace0(s) |
191 | # define SKIPSPACE1(s) skipspace1(s) | |
192 | # define SKIPSPACE2(s,tsv) skipspace2(s,&tsv) | |
193 | # define PEEKSPACE(s) skipspace2(s,0) | |
194 | #else | |
195 | # define SKIPSPACE0(s) skipspace(s) | |
196 | # define SKIPSPACE1(s) skipspace(s) | |
197 | # define SKIPSPACE2(s,tsv) skipspace(s) | |
198 | # define PEEKSPACE(s) skipspace(s) | |
199 | #endif | |
200 | ||
ffb4593c NT |
201 | /* |
202 | * Convenience functions to return different tokens and prime the | |
9cbb5ea2 | 203 | * lexer for the next token. They all take an argument. |
ffb4593c NT |
204 | * |
205 | * TOKEN : generic token (used for '(', DOLSHARP, etc) | |
206 | * OPERATOR : generic operator | |
207 | * AOPERATOR : assignment operator | |
208 | * PREBLOCK : beginning the block after an if, while, foreach, ... | |
209 | * PRETERMBLOCK : beginning a non-code-defining {} block (eg, hash ref) | |
210 | * PREREF : *EXPR where EXPR is not a simple identifier | |
211 | * TERM : expression term | |
212 | * LOOPX : loop exiting command (goto, last, dump, etc) | |
213 | * FTST : file test operator | |
214 | * FUN0 : zero-argument function | |
2d2e263d | 215 | * FUN1 : not used, except for not, which isn't a UNIOP |
ffb4593c NT |
216 | * BOop : bitwise or or xor |
217 | * BAop : bitwise and | |
218 | * SHop : shift operator | |
219 | * PWop : power operator | |
9cbb5ea2 | 220 | * PMop : pattern-matching operator |
ffb4593c NT |
221 | * Aop : addition-level operator |
222 | * Mop : multiplication-level operator | |
223 | * Eop : equality-testing operator | |
e5edeb50 | 224 | * Rop : relational operator <= != gt |
ffb4593c NT |
225 | * |
226 | * Also see LOP and lop() below. | |
227 | */ | |
228 | ||
998054bd | 229 | #ifdef DEBUGGING /* Serve -DT. */ |
704d4215 | 230 | # define REPORT(retval) tokereport((I32)retval, &pl_yylval) |
998054bd | 231 | #else |
bbf60fe6 | 232 | # define REPORT(retval) (retval) |
998054bd SC |
233 | #endif |
234 | ||
bbf60fe6 DM |
235 | #define TOKEN(retval) return ( PL_bufptr = s, REPORT(retval)) |
236 | #define OPERATOR(retval) return (PL_expect = XTERM, PL_bufptr = s, REPORT(retval)) | |
237 | #define AOPERATOR(retval) return ao((PL_expect = XTERM, PL_bufptr = s, REPORT(retval))) | |
238 | #define PREBLOCK(retval) return (PL_expect = XBLOCK,PL_bufptr = s, REPORT(retval)) | |
239 | #define PRETERMBLOCK(retval) return (PL_expect = XTERMBLOCK,PL_bufptr = s, REPORT(retval)) | |
240 | #define PREREF(retval) return (PL_expect = XREF,PL_bufptr = s, REPORT(retval)) | |
241 | #define TERM(retval) return (CLINE, PL_expect = XOPERATOR, PL_bufptr = s, REPORT(retval)) | |
6154021b RGS |
242 | #define LOOPX(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)LOOPEX)) |
243 | #define FTST(f) return (pl_yylval.ival=f, PL_expect=XTERMORDORDOR, PL_bufptr=s, REPORT((int)UNIOP)) | |
244 | #define FUN0(f) return (pl_yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC0)) | |
245 | #define FUN1(f) return (pl_yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC1)) | |
246 | #define BOop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITOROP))) | |
247 | #define BAop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITANDOP))) | |
248 | #define SHop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)SHIFTOP))) | |
249 | #define PWop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)POWOP))) | |
250 | #define PMop(f) return(pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MATCHOP)) | |
251 | #define Aop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)ADDOP))) | |
252 | #define Mop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MULOP))) | |
253 | #define Eop(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)EQOP)) | |
254 | #define Rop(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)RELOP)) | |
2f3197b3 | 255 | |
a687059c LW |
256 | /* This bit of chicanery makes a unary function followed by |
257 | * a parenthesis into a function with one argument, highest precedence. | |
6f33ba73 RGS |
258 | * The UNIDOR macro is for unary functions that can be followed by the // |
259 | * operator (such as C<shift // 0>). | |
a687059c | 260 | */ |
376fcdbf | 261 | #define UNI2(f,x) { \ |
6154021b | 262 | pl_yylval.ival = f; \ |
376fcdbf AL |
263 | PL_expect = x; \ |
264 | PL_bufptr = s; \ | |
265 | PL_last_uni = PL_oldbufptr; \ | |
266 | PL_last_lop_op = f; \ | |
267 | if (*s == '(') \ | |
268 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 269 | s = PEEKSPACE(s); \ |
376fcdbf AL |
270 | return REPORT( *s=='(' ? (int)FUNC1 : (int)UNIOP ); \ |
271 | } | |
6f33ba73 RGS |
272 | #define UNI(f) UNI2(f,XTERM) |
273 | #define UNIDOR(f) UNI2(f,XTERMORDORDOR) | |
a687059c | 274 | |
376fcdbf | 275 | #define UNIBRACK(f) { \ |
6154021b | 276 | pl_yylval.ival = f; \ |
376fcdbf AL |
277 | PL_bufptr = s; \ |
278 | PL_last_uni = PL_oldbufptr; \ | |
279 | if (*s == '(') \ | |
280 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 281 | s = PEEKSPACE(s); \ |
376fcdbf AL |
282 | return REPORT( (*s == '(') ? (int)FUNC1 : (int)UNIOP ); \ |
283 | } | |
79072805 | 284 | |
9f68db38 | 285 | /* grandfather return to old style */ |
6154021b | 286 | #define OLDLOP(f) return(pl_yylval.ival=f,PL_expect = XTERM,PL_bufptr = s,(int)LSTOP) |
79072805 | 287 | |
8fa7f367 JH |
288 | #ifdef DEBUGGING |
289 | ||
6154021b | 290 | /* how to interpret the pl_yylval associated with the token */ |
bbf60fe6 DM |
291 | enum token_type { |
292 | TOKENTYPE_NONE, | |
293 | TOKENTYPE_IVAL, | |
6154021b | 294 | TOKENTYPE_OPNUM, /* pl_yylval.ival contains an opcode number */ |
bbf60fe6 DM |
295 | TOKENTYPE_PVAL, |
296 | TOKENTYPE_OPVAL, | |
297 | TOKENTYPE_GVVAL | |
298 | }; | |
299 | ||
6d4a66ac NC |
300 | static struct debug_tokens { |
301 | const int token; | |
302 | enum token_type type; | |
303 | const char *name; | |
304 | } const debug_tokens[] = | |
9041c2e3 | 305 | { |
bbf60fe6 DM |
306 | { ADDOP, TOKENTYPE_OPNUM, "ADDOP" }, |
307 | { ANDAND, TOKENTYPE_NONE, "ANDAND" }, | |
308 | { ANDOP, TOKENTYPE_NONE, "ANDOP" }, | |
309 | { ANONSUB, TOKENTYPE_IVAL, "ANONSUB" }, | |
310 | { ARROW, TOKENTYPE_NONE, "ARROW" }, | |
311 | { ASSIGNOP, TOKENTYPE_OPNUM, "ASSIGNOP" }, | |
312 | { BITANDOP, TOKENTYPE_OPNUM, "BITANDOP" }, | |
313 | { BITOROP, TOKENTYPE_OPNUM, "BITOROP" }, | |
314 | { COLONATTR, TOKENTYPE_NONE, "COLONATTR" }, | |
315 | { CONTINUE, TOKENTYPE_NONE, "CONTINUE" }, | |
0d863452 | 316 | { DEFAULT, TOKENTYPE_NONE, "DEFAULT" }, |
bbf60fe6 DM |
317 | { DO, TOKENTYPE_NONE, "DO" }, |
318 | { DOLSHARP, TOKENTYPE_NONE, "DOLSHARP" }, | |
319 | { DORDOR, TOKENTYPE_NONE, "DORDOR" }, | |
320 | { DOROP, TOKENTYPE_OPNUM, "DOROP" }, | |
321 | { DOTDOT, TOKENTYPE_IVAL, "DOTDOT" }, | |
322 | { ELSE, TOKENTYPE_NONE, "ELSE" }, | |
323 | { ELSIF, TOKENTYPE_IVAL, "ELSIF" }, | |
324 | { EQOP, TOKENTYPE_OPNUM, "EQOP" }, | |
325 | { FOR, TOKENTYPE_IVAL, "FOR" }, | |
326 | { FORMAT, TOKENTYPE_NONE, "FORMAT" }, | |
327 | { FUNC, TOKENTYPE_OPNUM, "FUNC" }, | |
328 | { FUNC0, TOKENTYPE_OPNUM, "FUNC0" }, | |
329 | { FUNC0SUB, TOKENTYPE_OPVAL, "FUNC0SUB" }, | |
330 | { FUNC1, TOKENTYPE_OPNUM, "FUNC1" }, | |
331 | { FUNCMETH, TOKENTYPE_OPVAL, "FUNCMETH" }, | |
0d863452 | 332 | { GIVEN, TOKENTYPE_IVAL, "GIVEN" }, |
bbf60fe6 DM |
333 | { HASHBRACK, TOKENTYPE_NONE, "HASHBRACK" }, |
334 | { IF, TOKENTYPE_IVAL, "IF" }, | |
335 | { LABEL, TOKENTYPE_PVAL, "LABEL" }, | |
336 | { LOCAL, TOKENTYPE_IVAL, "LOCAL" }, | |
337 | { LOOPEX, TOKENTYPE_OPNUM, "LOOPEX" }, | |
338 | { LSTOP, TOKENTYPE_OPNUM, "LSTOP" }, | |
339 | { LSTOPSUB, TOKENTYPE_OPVAL, "LSTOPSUB" }, | |
340 | { MATCHOP, TOKENTYPE_OPNUM, "MATCHOP" }, | |
341 | { METHOD, TOKENTYPE_OPVAL, "METHOD" }, | |
342 | { MULOP, TOKENTYPE_OPNUM, "MULOP" }, | |
343 | { MY, TOKENTYPE_IVAL, "MY" }, | |
344 | { MYSUB, TOKENTYPE_NONE, "MYSUB" }, | |
345 | { NOAMP, TOKENTYPE_NONE, "NOAMP" }, | |
346 | { NOTOP, TOKENTYPE_NONE, "NOTOP" }, | |
347 | { OROP, TOKENTYPE_IVAL, "OROP" }, | |
348 | { OROR, TOKENTYPE_NONE, "OROR" }, | |
349 | { PACKAGE, TOKENTYPE_NONE, "PACKAGE" }, | |
350 | { PMFUNC, TOKENTYPE_OPVAL, "PMFUNC" }, | |
351 | { POSTDEC, TOKENTYPE_NONE, "POSTDEC" }, | |
352 | { POSTINC, TOKENTYPE_NONE, "POSTINC" }, | |
353 | { POWOP, TOKENTYPE_OPNUM, "POWOP" }, | |
354 | { PREDEC, TOKENTYPE_NONE, "PREDEC" }, | |
355 | { PREINC, TOKENTYPE_NONE, "PREINC" }, | |
356 | { PRIVATEREF, TOKENTYPE_OPVAL, "PRIVATEREF" }, | |
357 | { REFGEN, TOKENTYPE_NONE, "REFGEN" }, | |
358 | { RELOP, TOKENTYPE_OPNUM, "RELOP" }, | |
359 | { SHIFTOP, TOKENTYPE_OPNUM, "SHIFTOP" }, | |
360 | { SUB, TOKENTYPE_NONE, "SUB" }, | |
361 | { THING, TOKENTYPE_OPVAL, "THING" }, | |
362 | { UMINUS, TOKENTYPE_NONE, "UMINUS" }, | |
363 | { UNIOP, TOKENTYPE_OPNUM, "UNIOP" }, | |
364 | { UNIOPSUB, TOKENTYPE_OPVAL, "UNIOPSUB" }, | |
365 | { UNLESS, TOKENTYPE_IVAL, "UNLESS" }, | |
366 | { UNTIL, TOKENTYPE_IVAL, "UNTIL" }, | |
367 | { USE, TOKENTYPE_IVAL, "USE" }, | |
0d863452 | 368 | { WHEN, TOKENTYPE_IVAL, "WHEN" }, |
bbf60fe6 DM |
369 | { WHILE, TOKENTYPE_IVAL, "WHILE" }, |
370 | { WORD, TOKENTYPE_OPVAL, "WORD" }, | |
be25f609 | 371 | { YADAYADA, TOKENTYPE_IVAL, "YADAYADA" }, |
c35e046a | 372 | { 0, TOKENTYPE_NONE, NULL } |
bbf60fe6 DM |
373 | }; |
374 | ||
6154021b | 375 | /* dump the returned token in rv, plus any optional arg in pl_yylval */ |
998054bd | 376 | |
bbf60fe6 | 377 | STATIC int |
704d4215 | 378 | S_tokereport(pTHX_ I32 rv, const YYSTYPE* lvalp) |
bbf60fe6 | 379 | { |
97aff369 | 380 | dVAR; |
7918f24d NC |
381 | |
382 | PERL_ARGS_ASSERT_TOKEREPORT; | |
383 | ||
bbf60fe6 | 384 | if (DEBUG_T_TEST) { |
bd61b366 | 385 | const char *name = NULL; |
bbf60fe6 | 386 | enum token_type type = TOKENTYPE_NONE; |
f54cb97a | 387 | const struct debug_tokens *p; |
396482e1 | 388 | SV* const report = newSVpvs("<== "); |
bbf60fe6 | 389 | |
f54cb97a | 390 | for (p = debug_tokens; p->token; p++) { |
bbf60fe6 DM |
391 | if (p->token == (int)rv) { |
392 | name = p->name; | |
393 | type = p->type; | |
394 | break; | |
395 | } | |
396 | } | |
397 | if (name) | |
54667de8 | 398 | Perl_sv_catpv(aTHX_ report, name); |
bbf60fe6 DM |
399 | else if ((char)rv > ' ' && (char)rv < '~') |
400 | Perl_sv_catpvf(aTHX_ report, "'%c'", (char)rv); | |
401 | else if (!rv) | |
396482e1 | 402 | sv_catpvs(report, "EOF"); |
bbf60fe6 DM |
403 | else |
404 | Perl_sv_catpvf(aTHX_ report, "?? %"IVdf, (IV)rv); | |
405 | switch (type) { | |
406 | case TOKENTYPE_NONE: | |
407 | case TOKENTYPE_GVVAL: /* doesn't appear to be used */ | |
408 | break; | |
409 | case TOKENTYPE_IVAL: | |
704d4215 | 410 | Perl_sv_catpvf(aTHX_ report, "(ival=%"IVdf")", (IV)lvalp->ival); |
bbf60fe6 DM |
411 | break; |
412 | case TOKENTYPE_OPNUM: | |
413 | Perl_sv_catpvf(aTHX_ report, "(ival=op_%s)", | |
704d4215 | 414 | PL_op_name[lvalp->ival]); |
bbf60fe6 DM |
415 | break; |
416 | case TOKENTYPE_PVAL: | |
704d4215 | 417 | Perl_sv_catpvf(aTHX_ report, "(pval=\"%s\")", lvalp->pval); |
bbf60fe6 DM |
418 | break; |
419 | case TOKENTYPE_OPVAL: | |
704d4215 | 420 | if (lvalp->opval) { |
401441c0 | 421 | Perl_sv_catpvf(aTHX_ report, "(opval=op_%s)", |
704d4215 GG |
422 | PL_op_name[lvalp->opval->op_type]); |
423 | if (lvalp->opval->op_type == OP_CONST) { | |
b6007c36 | 424 | Perl_sv_catpvf(aTHX_ report, " %s", |
704d4215 | 425 | SvPEEK(cSVOPx_sv(lvalp->opval))); |
b6007c36 DM |
426 | } |
427 | ||
428 | } | |
401441c0 | 429 | else |
396482e1 | 430 | sv_catpvs(report, "(opval=null)"); |
bbf60fe6 DM |
431 | break; |
432 | } | |
b6007c36 | 433 | PerlIO_printf(Perl_debug_log, "### %s\n\n", SvPV_nolen_const(report)); |
bbf60fe6 DM |
434 | }; |
435 | return (int)rv; | |
998054bd SC |
436 | } |
437 | ||
b6007c36 DM |
438 | |
439 | /* print the buffer with suitable escapes */ | |
440 | ||
441 | STATIC void | |
15f169a1 | 442 | S_printbuf(pTHX_ const char *const fmt, const char *const s) |
b6007c36 | 443 | { |
396482e1 | 444 | SV* const tmp = newSVpvs(""); |
7918f24d NC |
445 | |
446 | PERL_ARGS_ASSERT_PRINTBUF; | |
447 | ||
b6007c36 DM |
448 | PerlIO_printf(Perl_debug_log, fmt, pv_display(tmp, s, strlen(s), 0, 60)); |
449 | SvREFCNT_dec(tmp); | |
450 | } | |
451 | ||
8fa7f367 JH |
452 | #endif |
453 | ||
ffb4593c NT |
454 | /* |
455 | * S_ao | |
456 | * | |
c963b151 BD |
457 | * This subroutine detects &&=, ||=, and //= and turns an ANDAND, OROR or DORDOR |
458 | * into an OP_ANDASSIGN, OP_ORASSIGN, or OP_DORASSIGN | |
ffb4593c NT |
459 | */ |
460 | ||
76e3520e | 461 | STATIC int |
cea2e8a9 | 462 | S_ao(pTHX_ int toketype) |
a0d0e21e | 463 | { |
97aff369 | 464 | dVAR; |
3280af22 NIS |
465 | if (*PL_bufptr == '=') { |
466 | PL_bufptr++; | |
a0d0e21e | 467 | if (toketype == ANDAND) |
6154021b | 468 | pl_yylval.ival = OP_ANDASSIGN; |
a0d0e21e | 469 | else if (toketype == OROR) |
6154021b | 470 | pl_yylval.ival = OP_ORASSIGN; |
c963b151 | 471 | else if (toketype == DORDOR) |
6154021b | 472 | pl_yylval.ival = OP_DORASSIGN; |
a0d0e21e LW |
473 | toketype = ASSIGNOP; |
474 | } | |
475 | return toketype; | |
476 | } | |
477 | ||
ffb4593c NT |
478 | /* |
479 | * S_no_op | |
480 | * When Perl expects an operator and finds something else, no_op | |
481 | * prints the warning. It always prints "<something> found where | |
482 | * operator expected. It prints "Missing semicolon on previous line?" | |
483 | * if the surprise occurs at the start of the line. "do you need to | |
484 | * predeclare ..." is printed out for code like "sub bar; foo bar $x" | |
485 | * where the compiler doesn't know if foo is a method call or a function. | |
486 | * It prints "Missing operator before end of line" if there's nothing | |
487 | * after the missing operator, or "... before <...>" if there is something | |
488 | * after the missing operator. | |
489 | */ | |
490 | ||
76e3520e | 491 | STATIC void |
15f169a1 | 492 | S_no_op(pTHX_ const char *const what, char *s) |
463ee0b2 | 493 | { |
97aff369 | 494 | dVAR; |
9d4ba2ae AL |
495 | char * const oldbp = PL_bufptr; |
496 | const bool is_first = (PL_oldbufptr == PL_linestart); | |
68dc0745 | 497 | |
7918f24d NC |
498 | PERL_ARGS_ASSERT_NO_OP; |
499 | ||
1189a94a GS |
500 | if (!s) |
501 | s = oldbp; | |
07c798fb | 502 | else |
1189a94a | 503 | PL_bufptr = s; |
cea2e8a9 | 504 | yywarn(Perl_form(aTHX_ "%s found where operator expected", what)); |
56da5a46 RGS |
505 | if (ckWARN_d(WARN_SYNTAX)) { |
506 | if (is_first) | |
507 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
508 | "\t(Missing semicolon on previous line?)\n"); | |
509 | else if (PL_oldoldbufptr && isIDFIRST_lazy_if(PL_oldoldbufptr,UTF)) { | |
f54cb97a | 510 | const char *t; |
c35e046a AL |
511 | for (t = PL_oldoldbufptr; (isALNUM_lazy_if(t,UTF) || *t == ':'); t++) |
512 | NOOP; | |
56da5a46 RGS |
513 | if (t < PL_bufptr && isSPACE(*t)) |
514 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
515 | "\t(Do you need to predeclare %.*s?)\n", | |
551405c4 | 516 | (int)(t - PL_oldoldbufptr), PL_oldoldbufptr); |
56da5a46 RGS |
517 | } |
518 | else { | |
519 | assert(s >= oldbp); | |
520 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
551405c4 | 521 | "\t(Missing operator before %.*s?)\n", (int)(s - oldbp), oldbp); |
56da5a46 | 522 | } |
07c798fb | 523 | } |
3280af22 | 524 | PL_bufptr = oldbp; |
8990e307 LW |
525 | } |
526 | ||
ffb4593c NT |
527 | /* |
528 | * S_missingterm | |
529 | * Complain about missing quote/regexp/heredoc terminator. | |
d4c19fe8 | 530 | * If it's called with NULL then it cauterizes the line buffer. |
ffb4593c NT |
531 | * If we're in a delimited string and the delimiter is a control |
532 | * character, it's reformatted into a two-char sequence like ^C. | |
533 | * This is fatal. | |
534 | */ | |
535 | ||
76e3520e | 536 | STATIC void |
cea2e8a9 | 537 | S_missingterm(pTHX_ char *s) |
8990e307 | 538 | { |
97aff369 | 539 | dVAR; |
8990e307 LW |
540 | char tmpbuf[3]; |
541 | char q; | |
542 | if (s) { | |
9d4ba2ae | 543 | char * const nl = strrchr(s,'\n'); |
d2719217 | 544 | if (nl) |
8990e307 LW |
545 | *nl = '\0'; |
546 | } | |
9d116dd7 JH |
547 | else if ( |
548 | #ifdef EBCDIC | |
549 | iscntrl(PL_multi_close) | |
550 | #else | |
551 | PL_multi_close < 32 || PL_multi_close == 127 | |
552 | #endif | |
553 | ) { | |
8990e307 | 554 | *tmpbuf = '^'; |
585ec06d | 555 | tmpbuf[1] = (char)toCTRL(PL_multi_close); |
8990e307 LW |
556 | tmpbuf[2] = '\0'; |
557 | s = tmpbuf; | |
558 | } | |
559 | else { | |
eb160463 | 560 | *tmpbuf = (char)PL_multi_close; |
8990e307 LW |
561 | tmpbuf[1] = '\0'; |
562 | s = tmpbuf; | |
563 | } | |
564 | q = strchr(s,'"') ? '\'' : '"'; | |
cea2e8a9 | 565 | Perl_croak(aTHX_ "Can't find string terminator %c%s%c anywhere before EOF",q,s,q); |
463ee0b2 | 566 | } |
79072805 | 567 | |
ef89dcc3 | 568 | #define FEATURE_IS_ENABLED(name) \ |
0d863452 | 569 | ((0 != (PL_hints & HINT_LOCALIZE_HH)) \ |
89529cee | 570 | && S_feature_is_enabled(aTHX_ STR_WITH_LEN(name))) |
4a731d7b NC |
571 | /* The longest string we pass in. */ |
572 | #define MAX_FEATURE_LEN (sizeof("switch")-1) | |
573 | ||
0d863452 RH |
574 | /* |
575 | * S_feature_is_enabled | |
576 | * Check whether the named feature is enabled. | |
577 | */ | |
578 | STATIC bool | |
15f169a1 | 579 | S_feature_is_enabled(pTHX_ const char *const name, STRLEN namelen) |
0d863452 | 580 | { |
97aff369 | 581 | dVAR; |
0d863452 | 582 | HV * const hinthv = GvHV(PL_hintgv); |
4a731d7b | 583 | char he_name[8 + MAX_FEATURE_LEN] = "feature_"; |
7918f24d NC |
584 | |
585 | PERL_ARGS_ASSERT_FEATURE_IS_ENABLED; | |
586 | ||
4a731d7b NC |
587 | assert(namelen <= MAX_FEATURE_LEN); |
588 | memcpy(&he_name[8], name, namelen); | |
d4c19fe8 | 589 | |
7b9ef140 | 590 | return (hinthv && hv_exists(hinthv, he_name, 8 + namelen)); |
0d863452 RH |
591 | } |
592 | ||
ffb4593c NT |
593 | /* |
594 | * Perl_deprecate | |
ffb4593c NT |
595 | */ |
596 | ||
79072805 | 597 | void |
15f169a1 | 598 | Perl_deprecate(pTHX_ const char *const s) |
a0d0e21e | 599 | { |
7918f24d NC |
600 | PERL_ARGS_ASSERT_DEPRECATE; |
601 | ||
599cee73 | 602 | if (ckWARN(WARN_DEPRECATED)) |
9014280d | 603 | Perl_warner(aTHX_ packWARN(WARN_DEPRECATED), "Use of %s is deprecated", s); |
a0d0e21e LW |
604 | } |
605 | ||
12bcd1a6 | 606 | void |
15f169a1 | 607 | Perl_deprecate_old(pTHX_ const char *const s) |
12bcd1a6 PM |
608 | { |
609 | /* This function should NOT be called for any new deprecated warnings */ | |
610 | /* Use Perl_deprecate instead */ | |
611 | /* */ | |
612 | /* It is here to maintain backward compatibility with the pre-5.8 */ | |
613 | /* warnings category hierarchy. The "deprecated" category used to */ | |
614 | /* live under the "syntax" category. It is now a top-level category */ | |
615 | /* in its own right. */ | |
616 | ||
7918f24d NC |
617 | PERL_ARGS_ASSERT_DEPRECATE_OLD; |
618 | ||
12bcd1a6 | 619 | if (ckWARN2(WARN_DEPRECATED, WARN_SYNTAX)) |
bfed75c6 | 620 | Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX), |
12bcd1a6 PM |
621 | "Use of %s is deprecated", s); |
622 | } | |
623 | ||
ffb4593c | 624 | /* |
9cbb5ea2 GS |
625 | * experimental text filters for win32 carriage-returns, utf16-to-utf8 and |
626 | * utf16-to-utf8-reversed. | |
ffb4593c NT |
627 | */ |
628 | ||
c39cd008 GS |
629 | #ifdef PERL_CR_FILTER |
630 | static void | |
631 | strip_return(SV *sv) | |
632 | { | |
95a20fc0 | 633 | register const char *s = SvPVX_const(sv); |
9d4ba2ae | 634 | register const char * const e = s + SvCUR(sv); |
7918f24d NC |
635 | |
636 | PERL_ARGS_ASSERT_STRIP_RETURN; | |
637 | ||
c39cd008 GS |
638 | /* outer loop optimized to do nothing if there are no CR-LFs */ |
639 | while (s < e) { | |
640 | if (*s++ == '\r' && *s == '\n') { | |
641 | /* hit a CR-LF, need to copy the rest */ | |
642 | register char *d = s - 1; | |
643 | *d++ = *s++; | |
644 | while (s < e) { | |
645 | if (*s == '\r' && s[1] == '\n') | |
646 | s++; | |
647 | *d++ = *s++; | |
648 | } | |
649 | SvCUR(sv) -= s - d; | |
650 | return; | |
651 | } | |
652 | } | |
653 | } | |
a868473f | 654 | |
76e3520e | 655 | STATIC I32 |
c39cd008 | 656 | S_cr_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
a868473f | 657 | { |
f54cb97a | 658 | const I32 count = FILTER_READ(idx+1, sv, maxlen); |
c39cd008 GS |
659 | if (count > 0 && !maxlen) |
660 | strip_return(sv); | |
661 | return count; | |
a868473f NIS |
662 | } |
663 | #endif | |
664 | ||
199e78b7 DM |
665 | |
666 | ||
ffb4593c NT |
667 | /* |
668 | * Perl_lex_start | |
5486870f | 669 | * |
e3abe207 | 670 | * Create a parser object and initialise its parser and lexer fields |
5486870f DM |
671 | * |
672 | * rsfp is the opened file handle to read from (if any), | |
673 | * | |
674 | * line holds any initial content already read from the file (or in | |
675 | * the case of no file, such as an eval, the whole contents); | |
676 | * | |
677 | * new_filter indicates that this is a new file and it shouldn't inherit | |
678 | * the filters from the current parser (ie require). | |
ffb4593c NT |
679 | */ |
680 | ||
a0d0e21e | 681 | void |
5486870f | 682 | Perl_lex_start(pTHX_ SV *line, PerlIO *rsfp, bool new_filter) |
79072805 | 683 | { |
97aff369 | 684 | dVAR; |
6ef55633 | 685 | const char *s = NULL; |
8990e307 | 686 | STRLEN len; |
5486870f | 687 | yy_parser *parser, *oparser; |
acdf0a21 DM |
688 | |
689 | /* create and initialise a parser */ | |
690 | ||
199e78b7 | 691 | Newxz(parser, 1, yy_parser); |
5486870f | 692 | parser->old_parser = oparser = PL_parser; |
acdf0a21 DM |
693 | PL_parser = parser; |
694 | ||
695 | Newx(parser->stack, YYINITDEPTH, yy_stack_frame); | |
696 | parser->ps = parser->stack; | |
697 | parser->stack_size = YYINITDEPTH; | |
698 | ||
699 | parser->stack->state = 0; | |
700 | parser->yyerrstatus = 0; | |
701 | parser->yychar = YYEMPTY; /* Cause a token to be read. */ | |
702 | ||
e3abe207 DM |
703 | /* on scope exit, free this parser and restore any outer one */ |
704 | SAVEPARSER(parser); | |
7c4baf47 | 705 | parser->saved_curcop = PL_curcop; |
e3abe207 | 706 | |
acdf0a21 | 707 | /* initialise lexer state */ |
8990e307 | 708 | |
fb205e7a DM |
709 | #ifdef PERL_MAD |
710 | parser->curforce = -1; | |
711 | #else | |
712 | parser->nexttoke = 0; | |
713 | #endif | |
ca4cfd28 | 714 | parser->error_count = oparser ? oparser->error_count : 0; |
c2598295 | 715 | parser->copline = NOLINE; |
5afb0a62 | 716 | parser->lex_state = LEX_NORMAL; |
c2598295 | 717 | parser->expect = XSTATE; |
2f9285f8 | 718 | parser->rsfp = rsfp; |
56b27c9a | 719 | parser->rsfp_filters = (new_filter || !oparser) ? newAV() |
5486870f | 720 | : (AV*)SvREFCNT_inc(oparser->rsfp_filters); |
2f9285f8 | 721 | |
199e78b7 DM |
722 | Newx(parser->lex_brackstack, 120, char); |
723 | Newx(parser->lex_casestack, 12, char); | |
724 | *parser->lex_casestack = '\0'; | |
02b34bbe | 725 | |
10efb74f NC |
726 | if (line) { |
727 | s = SvPV_const(line, len); | |
728 | } else { | |
729 | len = 0; | |
730 | } | |
bdc0bf6f | 731 | |
10efb74f | 732 | if (!len) { |
bdc0bf6f | 733 | parser->linestr = newSVpvs("\n;"); |
10efb74f | 734 | } else if (SvREADONLY(line) || s[len-1] != ';') { |
bdc0bf6f | 735 | parser->linestr = newSVsv(line); |
10efb74f | 736 | if (s[len-1] != ';') |
bdc0bf6f | 737 | sv_catpvs(parser->linestr, "\n;"); |
6c5ce11d NC |
738 | } else { |
739 | SvTEMP_off(line); | |
740 | SvREFCNT_inc_simple_void_NN(line); | |
bdc0bf6f | 741 | parser->linestr = line; |
8990e307 | 742 | } |
f06b5848 DM |
743 | parser->oldoldbufptr = |
744 | parser->oldbufptr = | |
745 | parser->bufptr = | |
746 | parser->linestart = SvPVX(parser->linestr); | |
747 | parser->bufend = parser->bufptr + SvCUR(parser->linestr); | |
748 | parser->last_lop = parser->last_uni = NULL; | |
79072805 | 749 | } |
a687059c | 750 | |
e3abe207 DM |
751 | |
752 | /* delete a parser object */ | |
753 | ||
754 | void | |
755 | Perl_parser_free(pTHX_ const yy_parser *parser) | |
756 | { | |
7918f24d NC |
757 | PERL_ARGS_ASSERT_PARSER_FREE; |
758 | ||
7c4baf47 | 759 | PL_curcop = parser->saved_curcop; |
bdc0bf6f DM |
760 | SvREFCNT_dec(parser->linestr); |
761 | ||
2f9285f8 DM |
762 | if (parser->rsfp == PerlIO_stdin()) |
763 | PerlIO_clearerr(parser->rsfp); | |
799361c3 SH |
764 | else if (parser->rsfp && (!parser->old_parser || |
765 | (parser->old_parser && parser->rsfp != parser->old_parser->rsfp))) | |
2f9285f8 | 766 | PerlIO_close(parser->rsfp); |
5486870f | 767 | SvREFCNT_dec(parser->rsfp_filters); |
2f9285f8 | 768 | |
e3abe207 DM |
769 | Safefree(parser->stack); |
770 | Safefree(parser->lex_brackstack); | |
771 | Safefree(parser->lex_casestack); | |
772 | PL_parser = parser->old_parser; | |
773 | Safefree(parser); | |
774 | } | |
775 | ||
776 | ||
ffb4593c NT |
777 | /* |
778 | * Perl_lex_end | |
9cbb5ea2 GS |
779 | * Finalizer for lexing operations. Must be called when the parser is |
780 | * done with the lexer. | |
ffb4593c NT |
781 | */ |
782 | ||
463ee0b2 | 783 | void |
864dbfa3 | 784 | Perl_lex_end(pTHX) |
463ee0b2 | 785 | { |
97aff369 | 786 | dVAR; |
3280af22 | 787 | PL_doextract = FALSE; |
463ee0b2 LW |
788 | } |
789 | ||
ffb4593c NT |
790 | /* |
791 | * S_incline | |
792 | * This subroutine has nothing to do with tilting, whether at windmills | |
793 | * or pinball tables. Its name is short for "increment line". It | |
57843af0 | 794 | * increments the current line number in CopLINE(PL_curcop) and checks |
ffb4593c | 795 | * to see whether the line starts with a comment of the form |
9cbb5ea2 GS |
796 | * # line 500 "foo.pm" |
797 | * If so, it sets the current line number and file to the values in the comment. | |
ffb4593c NT |
798 | */ |
799 | ||
76e3520e | 800 | STATIC void |
d9095cec | 801 | S_incline(pTHX_ const char *s) |
463ee0b2 | 802 | { |
97aff369 | 803 | dVAR; |
d9095cec NC |
804 | const char *t; |
805 | const char *n; | |
806 | const char *e; | |
463ee0b2 | 807 | |
7918f24d NC |
808 | PERL_ARGS_ASSERT_INCLINE; |
809 | ||
57843af0 | 810 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
811 | if (*s++ != '#') |
812 | return; | |
d4c19fe8 AL |
813 | while (SPACE_OR_TAB(*s)) |
814 | s++; | |
73659bf1 GS |
815 | if (strnEQ(s, "line", 4)) |
816 | s += 4; | |
817 | else | |
818 | return; | |
084592ab | 819 | if (SPACE_OR_TAB(*s)) |
73659bf1 | 820 | s++; |
4e553d73 | 821 | else |
73659bf1 | 822 | return; |
d4c19fe8 AL |
823 | while (SPACE_OR_TAB(*s)) |
824 | s++; | |
463ee0b2 LW |
825 | if (!isDIGIT(*s)) |
826 | return; | |
d4c19fe8 | 827 | |
463ee0b2 LW |
828 | n = s; |
829 | while (isDIGIT(*s)) | |
830 | s++; | |
bf4acbe4 | 831 | while (SPACE_OR_TAB(*s)) |
463ee0b2 | 832 | s++; |
73659bf1 | 833 | if (*s == '"' && (t = strchr(s+1, '"'))) { |
463ee0b2 | 834 | s++; |
73659bf1 GS |
835 | e = t + 1; |
836 | } | |
463ee0b2 | 837 | else { |
c35e046a AL |
838 | t = s; |
839 | while (!isSPACE(*t)) | |
840 | t++; | |
73659bf1 | 841 | e = t; |
463ee0b2 | 842 | } |
bf4acbe4 | 843 | while (SPACE_OR_TAB(*e) || *e == '\r' || *e == '\f') |
73659bf1 GS |
844 | e++; |
845 | if (*e != '\n' && *e != '\0') | |
846 | return; /* false alarm */ | |
847 | ||
f4dd75d9 | 848 | if (t - s > 0) { |
d9095cec | 849 | const STRLEN len = t - s; |
8a5ee598 | 850 | #ifndef USE_ITHREADS |
19bad673 NC |
851 | SV *const temp_sv = CopFILESV(PL_curcop); |
852 | const char *cf; | |
853 | STRLEN tmplen; | |
854 | ||
855 | if (temp_sv) { | |
856 | cf = SvPVX(temp_sv); | |
857 | tmplen = SvCUR(temp_sv); | |
858 | } else { | |
859 | cf = NULL; | |
860 | tmplen = 0; | |
861 | } | |
862 | ||
42d9b98d | 863 | if (tmplen > 7 && strnEQ(cf, "(eval ", 6)) { |
e66cf94c RGS |
864 | /* must copy *{"::_<(eval N)[oldfilename:L]"} |
865 | * to *{"::_<newfilename"} */ | |
44867030 NC |
866 | /* However, the long form of evals is only turned on by the |
867 | debugger - usually they're "(eval %lu)" */ | |
868 | char smallbuf[128]; | |
869 | char *tmpbuf; | |
870 | GV **gvp; | |
d9095cec | 871 | STRLEN tmplen2 = len; |
798b63bc | 872 | if (tmplen + 2 <= sizeof smallbuf) |
e66cf94c RGS |
873 | tmpbuf = smallbuf; |
874 | else | |
2ae0db35 | 875 | Newx(tmpbuf, tmplen + 2, char); |
44867030 NC |
876 | tmpbuf[0] = '_'; |
877 | tmpbuf[1] = '<'; | |
2ae0db35 | 878 | memcpy(tmpbuf + 2, cf, tmplen); |
44867030 | 879 | tmplen += 2; |
8a5ee598 RGS |
880 | gvp = (GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, FALSE); |
881 | if (gvp) { | |
44867030 NC |
882 | char *tmpbuf2; |
883 | GV *gv2; | |
884 | ||
885 | if (tmplen2 + 2 <= sizeof smallbuf) | |
886 | tmpbuf2 = smallbuf; | |
887 | else | |
888 | Newx(tmpbuf2, tmplen2 + 2, char); | |
889 | ||
890 | if (tmpbuf2 != smallbuf || tmpbuf != smallbuf) { | |
891 | /* Either they malloc'd it, or we malloc'd it, | |
892 | so no prefix is present in ours. */ | |
893 | tmpbuf2[0] = '_'; | |
894 | tmpbuf2[1] = '<'; | |
895 | } | |
896 | ||
897 | memcpy(tmpbuf2 + 2, s, tmplen2); | |
898 | tmplen2 += 2; | |
899 | ||
8a5ee598 | 900 | gv2 = *(GV**)hv_fetch(PL_defstash, tmpbuf2, tmplen2, TRUE); |
e5527e4b | 901 | if (!isGV(gv2)) { |
8a5ee598 | 902 | gv_init(gv2, PL_defstash, tmpbuf2, tmplen2, FALSE); |
e5527e4b RGS |
903 | /* adjust ${"::_<newfilename"} to store the new file name */ |
904 | GvSV(gv2) = newSVpvn(tmpbuf2 + 2, tmplen2 - 2); | |
905 | GvHV(gv2) = (HV*)SvREFCNT_inc(GvHV(*gvp)); | |
906 | GvAV(gv2) = (AV*)SvREFCNT_inc(GvAV(*gvp)); | |
907 | } | |
44867030 NC |
908 | |
909 | if (tmpbuf2 != smallbuf) Safefree(tmpbuf2); | |
8a5ee598 | 910 | } |
e66cf94c | 911 | if (tmpbuf != smallbuf) Safefree(tmpbuf); |
e66cf94c | 912 | } |
8a5ee598 | 913 | #endif |
05ec9bb3 | 914 | CopFILE_free(PL_curcop); |
d9095cec | 915 | CopFILE_setn(PL_curcop, s, len); |
f4dd75d9 | 916 | } |
57843af0 | 917 | CopLINE_set(PL_curcop, atoi(n)-1); |
463ee0b2 LW |
918 | } |
919 | ||
29595ff2 | 920 | #ifdef PERL_MAD |
cd81e915 | 921 | /* skip space before PL_thistoken */ |
29595ff2 NC |
922 | |
923 | STATIC char * | |
924 | S_skipspace0(pTHX_ register char *s) | |
925 | { | |
7918f24d NC |
926 | PERL_ARGS_ASSERT_SKIPSPACE0; |
927 | ||
29595ff2 NC |
928 | s = skipspace(s); |
929 | if (!PL_madskills) | |
930 | return s; | |
cd81e915 NC |
931 | if (PL_skipwhite) { |
932 | if (!PL_thiswhite) | |
6b29d1f5 | 933 | PL_thiswhite = newSVpvs(""); |
cd81e915 NC |
934 | sv_catsv(PL_thiswhite, PL_skipwhite); |
935 | sv_free(PL_skipwhite); | |
936 | PL_skipwhite = 0; | |
937 | } | |
938 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
29595ff2 NC |
939 | return s; |
940 | } | |
941 | ||
cd81e915 | 942 | /* skip space after PL_thistoken */ |
29595ff2 NC |
943 | |
944 | STATIC char * | |
945 | S_skipspace1(pTHX_ register char *s) | |
946 | { | |
d4c19fe8 | 947 | const char *start = s; |
29595ff2 NC |
948 | I32 startoff = start - SvPVX(PL_linestr); |
949 | ||
7918f24d NC |
950 | PERL_ARGS_ASSERT_SKIPSPACE1; |
951 | ||
29595ff2 NC |
952 | s = skipspace(s); |
953 | if (!PL_madskills) | |
954 | return s; | |
955 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 956 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 957 | const char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
958 | PL_thistoken = newSVpvn(tstart, start - tstart); |
959 | } | |
960 | PL_realtokenstart = -1; | |
961 | if (PL_skipwhite) { | |
962 | if (!PL_nextwhite) | |
6b29d1f5 | 963 | PL_nextwhite = newSVpvs(""); |
cd81e915 NC |
964 | sv_catsv(PL_nextwhite, PL_skipwhite); |
965 | sv_free(PL_skipwhite); | |
966 | PL_skipwhite = 0; | |
29595ff2 NC |
967 | } |
968 | return s; | |
969 | } | |
970 | ||
971 | STATIC char * | |
972 | S_skipspace2(pTHX_ register char *s, SV **svp) | |
973 | { | |
c35e046a AL |
974 | char *start; |
975 | const I32 bufptroff = PL_bufptr - SvPVX(PL_linestr); | |
976 | const I32 startoff = s - SvPVX(PL_linestr); | |
977 | ||
7918f24d NC |
978 | PERL_ARGS_ASSERT_SKIPSPACE2; |
979 | ||
29595ff2 NC |
980 | s = skipspace(s); |
981 | PL_bufptr = SvPVX(PL_linestr) + bufptroff; | |
982 | if (!PL_madskills || !svp) | |
983 | return s; | |
984 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 985 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 986 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
987 | PL_thistoken = newSVpvn(tstart, start - tstart); |
988 | PL_realtokenstart = -1; | |
29595ff2 | 989 | } |
cd81e915 | 990 | if (PL_skipwhite) { |
29595ff2 | 991 | if (!*svp) |
6b29d1f5 | 992 | *svp = newSVpvs(""); |
cd81e915 NC |
993 | sv_setsv(*svp, PL_skipwhite); |
994 | sv_free(PL_skipwhite); | |
995 | PL_skipwhite = 0; | |
29595ff2 NC |
996 | } |
997 | ||
998 | return s; | |
999 | } | |
1000 | #endif | |
1001 | ||
80a702cd | 1002 | STATIC void |
15f169a1 | 1003 | S_update_debugger_info(pTHX_ SV *orig_sv, const char *const buf, STRLEN len) |
80a702cd RGS |
1004 | { |
1005 | AV *av = CopFILEAVx(PL_curcop); | |
1006 | if (av) { | |
b9f83d2f | 1007 | SV * const sv = newSV_type(SVt_PVMG); |
5fa550fb NC |
1008 | if (orig_sv) |
1009 | sv_setsv(sv, orig_sv); | |
1010 | else | |
1011 | sv_setpvn(sv, buf, len); | |
80a702cd RGS |
1012 | (void)SvIOK_on(sv); |
1013 | SvIV_set(sv, 0); | |
1014 | av_store(av, (I32)CopLINE(PL_curcop), sv); | |
1015 | } | |
1016 | } | |
1017 | ||
ffb4593c NT |
1018 | /* |
1019 | * S_skipspace | |
1020 | * Called to gobble the appropriate amount and type of whitespace. | |
1021 | * Skips comments as well. | |
1022 | */ | |
1023 | ||
76e3520e | 1024 | STATIC char * |
cea2e8a9 | 1025 | S_skipspace(pTHX_ register char *s) |
a687059c | 1026 | { |
97aff369 | 1027 | dVAR; |
5db06880 NC |
1028 | #ifdef PERL_MAD |
1029 | int curoff; | |
1030 | int startoff = s - SvPVX(PL_linestr); | |
1031 | ||
7918f24d NC |
1032 | PERL_ARGS_ASSERT_SKIPSPACE; |
1033 | ||
cd81e915 NC |
1034 | if (PL_skipwhite) { |
1035 | sv_free(PL_skipwhite); | |
1036 | PL_skipwhite = 0; | |
5db06880 NC |
1037 | } |
1038 | #endif | |
7918f24d | 1039 | PERL_ARGS_ASSERT_SKIPSPACE; |
5db06880 | 1040 | |
3280af22 | 1041 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
bf4acbe4 | 1042 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
463ee0b2 | 1043 | s++; |
5db06880 NC |
1044 | #ifdef PERL_MAD |
1045 | goto done; | |
1046 | #else | |
463ee0b2 | 1047 | return s; |
5db06880 | 1048 | #endif |
463ee0b2 LW |
1049 | } |
1050 | for (;;) { | |
fd049845 | 1051 | STRLEN prevlen; |
09bef843 | 1052 | SSize_t oldprevlen, oldoldprevlen; |
9c5ffd7c | 1053 | SSize_t oldloplen = 0, oldunilen = 0; |
60e6418e GS |
1054 | while (s < PL_bufend && isSPACE(*s)) { |
1055 | if (*s++ == '\n' && PL_in_eval && !PL_rsfp) | |
1056 | incline(s); | |
1057 | } | |
ffb4593c NT |
1058 | |
1059 | /* comment */ | |
3280af22 NIS |
1060 | if (s < PL_bufend && *s == '#') { |
1061 | while (s < PL_bufend && *s != '\n') | |
463ee0b2 | 1062 | s++; |
60e6418e | 1063 | if (s < PL_bufend) { |
463ee0b2 | 1064 | s++; |
60e6418e GS |
1065 | if (PL_in_eval && !PL_rsfp) { |
1066 | incline(s); | |
1067 | continue; | |
1068 | } | |
1069 | } | |
463ee0b2 | 1070 | } |
ffb4593c NT |
1071 | |
1072 | /* only continue to recharge the buffer if we're at the end | |
1073 | * of the buffer, we're not reading from a source filter, and | |
1074 | * we're in normal lexing mode | |
1075 | */ | |
09bef843 SB |
1076 | if (s < PL_bufend || !PL_rsfp || PL_sublex_info.sub_inwhat || |
1077 | PL_lex_state == LEX_FORMLINE) | |
5db06880 NC |
1078 | #ifdef PERL_MAD |
1079 | goto done; | |
1080 | #else | |
463ee0b2 | 1081 | return s; |
5db06880 | 1082 | #endif |
ffb4593c NT |
1083 | |
1084 | /* try to recharge the buffer */ | |
5db06880 NC |
1085 | #ifdef PERL_MAD |
1086 | curoff = s - SvPVX(PL_linestr); | |
1087 | #endif | |
1088 | ||
9cbb5ea2 | 1089 | if ((s = filter_gets(PL_linestr, PL_rsfp, |
bd61b366 | 1090 | (prevlen = SvCUR(PL_linestr)))) == NULL) |
9cbb5ea2 | 1091 | { |
5db06880 NC |
1092 | #ifdef PERL_MAD |
1093 | if (PL_madskills && curoff != startoff) { | |
cd81e915 | 1094 | if (!PL_skipwhite) |
6b29d1f5 | 1095 | PL_skipwhite = newSVpvs(""); |
cd81e915 | 1096 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, |
5db06880 NC |
1097 | curoff - startoff); |
1098 | } | |
1099 | ||
1100 | /* mustn't throw out old stuff yet if madpropping */ | |
1101 | SvCUR(PL_linestr) = curoff; | |
1102 | s = SvPVX(PL_linestr) + curoff; | |
1103 | *s = 0; | |
1104 | if (curoff && s[-1] == '\n') | |
1105 | s[-1] = ' '; | |
1106 | #endif | |
1107 | ||
9cbb5ea2 | 1108 | /* end of file. Add on the -p or -n magic */ |
cd81e915 | 1109 | /* XXX these shouldn't really be added here, can't set PL_faketokens */ |
01a19ab0 | 1110 | if (PL_minus_p) { |
5db06880 | 1111 | #ifdef PERL_MAD |
6502358f | 1112 | sv_catpvs(PL_linestr, |
5db06880 NC |
1113 | ";}continue{print or die qq(-p destination: $!\\n);}"); |
1114 | #else | |
6502358f | 1115 | sv_setpvs(PL_linestr, |
01a19ab0 | 1116 | ";}continue{print or die qq(-p destination: $!\\n);}"); |
5db06880 | 1117 | #endif |
3280af22 | 1118 | PL_minus_n = PL_minus_p = 0; |
a0d0e21e | 1119 | } |
01a19ab0 | 1120 | else if (PL_minus_n) { |
5db06880 NC |
1121 | #ifdef PERL_MAD |
1122 | sv_catpvn(PL_linestr, ";}", 2); | |
1123 | #else | |
01a19ab0 | 1124 | sv_setpvn(PL_linestr, ";}", 2); |
5db06880 | 1125 | #endif |
01a19ab0 NC |
1126 | PL_minus_n = 0; |
1127 | } | |
a0d0e21e | 1128 | else |
5db06880 NC |
1129 | #ifdef PERL_MAD |
1130 | sv_catpvn(PL_linestr,";", 1); | |
1131 | #else | |
4147a61b | 1132 | sv_setpvn(PL_linestr,";", 1); |
5db06880 | 1133 | #endif |
ffb4593c NT |
1134 | |
1135 | /* reset variables for next time we lex */ | |
9cbb5ea2 | 1136 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart |
89122651 NC |
1137 | = SvPVX(PL_linestr) |
1138 | #ifdef PERL_MAD | |
1139 | + curoff | |
1140 | #endif | |
1141 | ; | |
3280af22 | 1142 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 1143 | PL_last_lop = PL_last_uni = NULL; |
ffb4593c | 1144 | |
4c84d7f2 | 1145 | /* Close the filehandle. Could be from |
ffb4593c NT |
1146 | * STDIN, or a regular file. If we were reading code from |
1147 | * STDIN (because the commandline held no -e or filename) | |
1148 | * then we don't close it, we reset it so the code can | |
1149 | * read from STDIN too. | |
1150 | */ | |
1151 | ||
4c84d7f2 | 1152 | if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
3280af22 | 1153 | PerlIO_clearerr(PL_rsfp); |
8990e307 | 1154 | else |
3280af22 | 1155 | (void)PerlIO_close(PL_rsfp); |
4608196e | 1156 | PL_rsfp = NULL; |
463ee0b2 LW |
1157 | return s; |
1158 | } | |
ffb4593c NT |
1159 | |
1160 | /* not at end of file, so we only read another line */ | |
09bef843 SB |
1161 | /* make corresponding updates to old pointers, for yyerror() */ |
1162 | oldprevlen = PL_oldbufptr - PL_bufend; | |
1163 | oldoldprevlen = PL_oldoldbufptr - PL_bufend; | |
1164 | if (PL_last_uni) | |
1165 | oldunilen = PL_last_uni - PL_bufend; | |
1166 | if (PL_last_lop) | |
1167 | oldloplen = PL_last_lop - PL_bufend; | |
3280af22 NIS |
1168 | PL_linestart = PL_bufptr = s + prevlen; |
1169 | PL_bufend = s + SvCUR(PL_linestr); | |
1170 | s = PL_bufptr; | |
09bef843 SB |
1171 | PL_oldbufptr = s + oldprevlen; |
1172 | PL_oldoldbufptr = s + oldoldprevlen; | |
1173 | if (PL_last_uni) | |
1174 | PL_last_uni = s + oldunilen; | |
1175 | if (PL_last_lop) | |
1176 | PL_last_lop = s + oldloplen; | |
a0d0e21e | 1177 | incline(s); |
ffb4593c NT |
1178 | |
1179 | /* debugger active and we're not compiling the debugger code, | |
1180 | * so store the line into the debugger's array of lines | |
1181 | */ | |
80a702cd | 1182 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 1183 | update_debugger_info(NULL, PL_bufptr, PL_bufend - PL_bufptr); |
463ee0b2 | 1184 | } |
5db06880 NC |
1185 | |
1186 | #ifdef PERL_MAD | |
1187 | done: | |
1188 | if (PL_madskills) { | |
cd81e915 | 1189 | if (!PL_skipwhite) |
6b29d1f5 | 1190 | PL_skipwhite = newSVpvs(""); |
5db06880 NC |
1191 | curoff = s - SvPVX(PL_linestr); |
1192 | if (curoff - startoff) | |
cd81e915 | 1193 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, |
5db06880 NC |
1194 | curoff - startoff); |
1195 | } | |
1196 | return s; | |
1197 | #endif | |
a687059c | 1198 | } |
378cc40b | 1199 | |
ffb4593c NT |
1200 | /* |
1201 | * S_check_uni | |
1202 | * Check the unary operators to ensure there's no ambiguity in how they're | |
1203 | * used. An ambiguous piece of code would be: | |
1204 | * rand + 5 | |
1205 | * This doesn't mean rand() + 5. Because rand() is a unary operator, | |
1206 | * the +5 is its argument. | |
1207 | */ | |
1208 | ||
76e3520e | 1209 | STATIC void |
cea2e8a9 | 1210 | S_check_uni(pTHX) |
ba106d47 | 1211 | { |
97aff369 | 1212 | dVAR; |
d4c19fe8 AL |
1213 | const char *s; |
1214 | const char *t; | |
2f3197b3 | 1215 | |
3280af22 | 1216 | if (PL_oldoldbufptr != PL_last_uni) |
2f3197b3 | 1217 | return; |
3280af22 NIS |
1218 | while (isSPACE(*PL_last_uni)) |
1219 | PL_last_uni++; | |
c35e046a AL |
1220 | s = PL_last_uni; |
1221 | while (isALNUM_lazy_if(s,UTF) || *s == '-') | |
1222 | s++; | |
3280af22 | 1223 | if ((t = strchr(s, '(')) && t < PL_bufptr) |
a0d0e21e | 1224 | return; |
6136c704 | 1225 | |
0453d815 | 1226 | if (ckWARN_d(WARN_AMBIGUOUS)){ |
9014280d | 1227 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
32d45c1d NC |
1228 | "Warning: Use of \"%.*s\" without parentheses is ambiguous", |
1229 | (int)(s - PL_last_uni), PL_last_uni); | |
0453d815 | 1230 | } |
2f3197b3 LW |
1231 | } |
1232 | ||
ffb4593c NT |
1233 | /* |
1234 | * LOP : macro to build a list operator. Its behaviour has been replaced | |
1235 | * with a subroutine, S_lop() for which LOP is just another name. | |
1236 | */ | |
1237 | ||
a0d0e21e LW |
1238 | #define LOP(f,x) return lop(f,x,s) |
1239 | ||
ffb4593c NT |
1240 | /* |
1241 | * S_lop | |
1242 | * Build a list operator (or something that might be one). The rules: | |
1243 | * - if we have a next token, then it's a list operator [why?] | |
1244 | * - if the next thing is an opening paren, then it's a function | |
1245 | * - else it's a list operator | |
1246 | */ | |
1247 | ||
76e3520e | 1248 | STATIC I32 |
a0be28da | 1249 | S_lop(pTHX_ I32 f, int x, char *s) |
ffed7fef | 1250 | { |
97aff369 | 1251 | dVAR; |
7918f24d NC |
1252 | |
1253 | PERL_ARGS_ASSERT_LOP; | |
1254 | ||
6154021b | 1255 | pl_yylval.ival = f; |
35c8bce7 | 1256 | CLINE; |
3280af22 NIS |
1257 | PL_expect = x; |
1258 | PL_bufptr = s; | |
1259 | PL_last_lop = PL_oldbufptr; | |
eb160463 | 1260 | PL_last_lop_op = (OPCODE)f; |
5db06880 NC |
1261 | #ifdef PERL_MAD |
1262 | if (PL_lasttoke) | |
1263 | return REPORT(LSTOP); | |
1264 | #else | |
3280af22 | 1265 | if (PL_nexttoke) |
bbf60fe6 | 1266 | return REPORT(LSTOP); |
5db06880 | 1267 | #endif |
79072805 | 1268 | if (*s == '(') |
bbf60fe6 | 1269 | return REPORT(FUNC); |
29595ff2 | 1270 | s = PEEKSPACE(s); |
79072805 | 1271 | if (*s == '(') |
bbf60fe6 | 1272 | return REPORT(FUNC); |
79072805 | 1273 | else |
bbf60fe6 | 1274 | return REPORT(LSTOP); |
79072805 LW |
1275 | } |
1276 | ||
5db06880 NC |
1277 | #ifdef PERL_MAD |
1278 | /* | |
1279 | * S_start_force | |
1280 | * Sets up for an eventual force_next(). start_force(0) basically does | |
1281 | * an unshift, while start_force(-1) does a push. yylex removes items | |
1282 | * on the "pop" end. | |
1283 | */ | |
1284 | ||
1285 | STATIC void | |
1286 | S_start_force(pTHX_ int where) | |
1287 | { | |
1288 | int i; | |
1289 | ||
cd81e915 | 1290 | if (where < 0) /* so people can duplicate start_force(PL_curforce) */ |
5db06880 | 1291 | where = PL_lasttoke; |
cd81e915 NC |
1292 | assert(PL_curforce < 0 || PL_curforce == where); |
1293 | if (PL_curforce != where) { | |
5db06880 NC |
1294 | for (i = PL_lasttoke; i > where; --i) { |
1295 | PL_nexttoke[i] = PL_nexttoke[i-1]; | |
1296 | } | |
1297 | PL_lasttoke++; | |
1298 | } | |
cd81e915 | 1299 | if (PL_curforce < 0) /* in case of duplicate start_force() */ |
5db06880 | 1300 | Zero(&PL_nexttoke[where], 1, NEXTTOKE); |
cd81e915 NC |
1301 | PL_curforce = where; |
1302 | if (PL_nextwhite) { | |
5db06880 | 1303 | if (PL_madskills) |
6b29d1f5 | 1304 | curmad('^', newSVpvs("")); |
cd81e915 | 1305 | CURMAD('_', PL_nextwhite); |
5db06880 NC |
1306 | } |
1307 | } | |
1308 | ||
1309 | STATIC void | |
1310 | S_curmad(pTHX_ char slot, SV *sv) | |
1311 | { | |
1312 | MADPROP **where; | |
1313 | ||
1314 | if (!sv) | |
1315 | return; | |
cd81e915 NC |
1316 | if (PL_curforce < 0) |
1317 | where = &PL_thismad; | |
5db06880 | 1318 | else |
cd81e915 | 1319 | where = &PL_nexttoke[PL_curforce].next_mad; |
5db06880 | 1320 | |
cd81e915 | 1321 | if (PL_faketokens) |
5db06880 NC |
1322 | sv_setpvn(sv, "", 0); |
1323 | else { | |
1324 | if (!IN_BYTES) { | |
1325 | if (UTF && is_utf8_string((U8*)SvPVX(sv), SvCUR(sv))) | |
1326 | SvUTF8_on(sv); | |
1327 | else if (PL_encoding) { | |
1328 | sv_recode_to_utf8(sv, PL_encoding); | |
1329 | } | |
1330 | } | |
1331 | } | |
1332 | ||
1333 | /* keep a slot open for the head of the list? */ | |
1334 | if (slot != '_' && *where && (*where)->mad_key == '^') { | |
1335 | (*where)->mad_key = slot; | |
035e2bcc | 1336 | sv_free((SV*)((*where)->mad_val)); |
5db06880 NC |
1337 | (*where)->mad_val = (void*)sv; |
1338 | } | |
1339 | else | |
1340 | addmad(newMADsv(slot, sv), where, 0); | |
1341 | } | |
1342 | #else | |
b3f24c00 MHM |
1343 | # define start_force(where) NOOP |
1344 | # define curmad(slot, sv) NOOP | |
5db06880 NC |
1345 | #endif |
1346 | ||
ffb4593c NT |
1347 | /* |
1348 | * S_force_next | |
9cbb5ea2 | 1349 | * When the lexer realizes it knows the next token (for instance, |
ffb4593c | 1350 | * it is reordering tokens for the parser) then it can call S_force_next |
9cbb5ea2 | 1351 | * to know what token to return the next time the lexer is called. Caller |
5db06880 NC |
1352 | * will need to set PL_nextval[] (or PL_nexttoke[].next_val with PERL_MAD), |
1353 | * and possibly PL_expect to ensure the lexer handles the token correctly. | |
ffb4593c NT |
1354 | */ |
1355 | ||
4e553d73 | 1356 | STATIC void |
cea2e8a9 | 1357 | S_force_next(pTHX_ I32 type) |
79072805 | 1358 | { |
97aff369 | 1359 | dVAR; |
704d4215 GG |
1360 | #ifdef DEBUGGING |
1361 | if (DEBUG_T_TEST) { | |
1362 | PerlIO_printf(Perl_debug_log, "### forced token:\n"); | |
f05d7009 | 1363 | tokereport(type, &NEXTVAL_NEXTTOKE); |
704d4215 GG |
1364 | } |
1365 | #endif | |
5db06880 | 1366 | #ifdef PERL_MAD |
cd81e915 | 1367 | if (PL_curforce < 0) |
5db06880 | 1368 | start_force(PL_lasttoke); |
cd81e915 | 1369 | PL_nexttoke[PL_curforce].next_type = type; |
5db06880 NC |
1370 | if (PL_lex_state != LEX_KNOWNEXT) |
1371 | PL_lex_defer = PL_lex_state; | |
1372 | PL_lex_state = LEX_KNOWNEXT; | |
1373 | PL_lex_expect = PL_expect; | |
cd81e915 | 1374 | PL_curforce = -1; |
5db06880 | 1375 | #else |
3280af22 NIS |
1376 | PL_nexttype[PL_nexttoke] = type; |
1377 | PL_nexttoke++; | |
1378 | if (PL_lex_state != LEX_KNOWNEXT) { | |
1379 | PL_lex_defer = PL_lex_state; | |
1380 | PL_lex_expect = PL_expect; | |
1381 | PL_lex_state = LEX_KNOWNEXT; | |
79072805 | 1382 | } |
5db06880 | 1383 | #endif |
79072805 LW |
1384 | } |
1385 | ||
d0a148a6 | 1386 | STATIC SV * |
15f169a1 | 1387 | S_newSV_maybe_utf8(pTHX_ const char *const start, STRLEN len) |
d0a148a6 | 1388 | { |
97aff369 | 1389 | dVAR; |
740cce10 NC |
1390 | SV * const sv = newSVpvn_utf8(start, len, |
1391 | UTF && !IN_BYTES | |
1392 | && is_utf8_string((const U8*)start, len)); | |
d0a148a6 NC |
1393 | return sv; |
1394 | } | |
1395 | ||
ffb4593c NT |
1396 | /* |
1397 | * S_force_word | |
1398 | * When the lexer knows the next thing is a word (for instance, it has | |
1399 | * just seen -> and it knows that the next char is a word char, then | |
02b34bbe DM |
1400 | * it calls S_force_word to stick the next word into the PL_nexttoke/val |
1401 | * lookahead. | |
ffb4593c NT |
1402 | * |
1403 | * Arguments: | |
b1b65b59 | 1404 | * char *start : buffer position (must be within PL_linestr) |
02b34bbe | 1405 | * int token : PL_next* will be this type of bare word (e.g., METHOD,WORD) |
ffb4593c NT |
1406 | * int check_keyword : if true, Perl checks to make sure the word isn't |
1407 | * a keyword (do this if the word is a label, e.g. goto FOO) | |
1408 | * int allow_pack : if true, : characters will also be allowed (require, | |
1409 | * use, etc. do this) | |
9cbb5ea2 | 1410 | * int allow_initial_tick : used by the "sub" lexer only. |
ffb4593c NT |
1411 | */ |
1412 | ||
76e3520e | 1413 | STATIC char * |
cea2e8a9 | 1414 | S_force_word(pTHX_ register char *start, int token, int check_keyword, int allow_pack, int allow_initial_tick) |
79072805 | 1415 | { |
97aff369 | 1416 | dVAR; |
463ee0b2 LW |
1417 | register char *s; |
1418 | STRLEN len; | |
4e553d73 | 1419 | |
7918f24d NC |
1420 | PERL_ARGS_ASSERT_FORCE_WORD; |
1421 | ||
29595ff2 | 1422 | start = SKIPSPACE1(start); |
463ee0b2 | 1423 | s = start; |
7e2040f0 | 1424 | if (isIDFIRST_lazy_if(s,UTF) || |
a0d0e21e | 1425 | (allow_pack && *s == ':') || |
15f0808c | 1426 | (allow_initial_tick && *s == '\'') ) |
a0d0e21e | 1427 | { |
3280af22 | 1428 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, allow_pack, &len); |
5458a98a | 1429 | if (check_keyword && keyword(PL_tokenbuf, len, 0)) |
463ee0b2 | 1430 | return start; |
cd81e915 | 1431 | start_force(PL_curforce); |
5db06880 NC |
1432 | if (PL_madskills) |
1433 | curmad('X', newSVpvn(start,s-start)); | |
463ee0b2 | 1434 | if (token == METHOD) { |
29595ff2 | 1435 | s = SKIPSPACE1(s); |
463ee0b2 | 1436 | if (*s == '(') |
3280af22 | 1437 | PL_expect = XTERM; |
463ee0b2 | 1438 | else { |
3280af22 | 1439 | PL_expect = XOPERATOR; |
463ee0b2 | 1440 | } |
79072805 | 1441 | } |
e74e6b3d | 1442 | if (PL_madskills) |
63575281 | 1443 | curmad('g', newSVpvs( "forced" )); |
9ded7720 | 1444 | NEXTVAL_NEXTTOKE.opval |
d0a148a6 NC |
1445 | = (OP*)newSVOP(OP_CONST,0, |
1446 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
9ded7720 | 1447 | NEXTVAL_NEXTTOKE.opval->op_private |= OPpCONST_BARE; |
79072805 LW |
1448 | force_next(token); |
1449 | } | |
1450 | return s; | |
1451 | } | |
1452 | ||
ffb4593c NT |
1453 | /* |
1454 | * S_force_ident | |
9cbb5ea2 | 1455 | * Called when the lexer wants $foo *foo &foo etc, but the program |
ffb4593c NT |
1456 | * text only contains the "foo" portion. The first argument is a pointer |
1457 | * to the "foo", and the second argument is the type symbol to prefix. | |
1458 | * Forces the next token to be a "WORD". | |
9cbb5ea2 | 1459 | * Creates the symbol if it didn't already exist (via gv_fetchpv()). |
ffb4593c NT |
1460 | */ |
1461 | ||
76e3520e | 1462 | STATIC void |
bfed75c6 | 1463 | S_force_ident(pTHX_ register const char *s, int kind) |
79072805 | 1464 | { |
97aff369 | 1465 | dVAR; |
7918f24d NC |
1466 | |
1467 | PERL_ARGS_ASSERT_FORCE_IDENT; | |
1468 | ||
c35e046a | 1469 | if (*s) { |
90e5519e NC |
1470 | const STRLEN len = strlen(s); |
1471 | OP* const o = (OP*)newSVOP(OP_CONST, 0, newSVpvn(s, len)); | |
cd81e915 | 1472 | start_force(PL_curforce); |
9ded7720 | 1473 | NEXTVAL_NEXTTOKE.opval = o; |
79072805 | 1474 | force_next(WORD); |
748a9306 | 1475 | if (kind) { |
11343788 | 1476 | o->op_private = OPpCONST_ENTERED; |
55497cff | 1477 | /* XXX see note in pp_entereval() for why we forgo typo |
1478 | warnings if the symbol must be introduced in an eval. | |
1479 | GSAR 96-10-12 */ | |
90e5519e NC |
1480 | gv_fetchpvn_flags(s, len, |
1481 | PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) | |
1482 | : GV_ADD, | |
1483 | kind == '$' ? SVt_PV : | |
1484 | kind == '@' ? SVt_PVAV : | |
1485 | kind == '%' ? SVt_PVHV : | |
a0d0e21e | 1486 | SVt_PVGV |
90e5519e | 1487 | ); |
748a9306 | 1488 | } |
79072805 LW |
1489 | } |
1490 | } | |
1491 | ||
1571675a GS |
1492 | NV |
1493 | Perl_str_to_version(pTHX_ SV *sv) | |
1494 | { | |
1495 | NV retval = 0.0; | |
1496 | NV nshift = 1.0; | |
1497 | STRLEN len; | |
cfd0369c | 1498 | const char *start = SvPV_const(sv,len); |
9d4ba2ae | 1499 | const char * const end = start + len; |
504618e9 | 1500 | const bool utf = SvUTF8(sv) ? TRUE : FALSE; |
7918f24d NC |
1501 | |
1502 | PERL_ARGS_ASSERT_STR_TO_VERSION; | |
1503 | ||
1571675a | 1504 | while (start < end) { |
ba210ebe | 1505 | STRLEN skip; |
1571675a GS |
1506 | UV n; |
1507 | if (utf) | |
9041c2e3 | 1508 | n = utf8n_to_uvchr((U8*)start, len, &skip, 0); |
1571675a GS |
1509 | else { |
1510 | n = *(U8*)start; | |
1511 | skip = 1; | |
1512 | } | |
1513 | retval += ((NV)n)/nshift; | |
1514 | start += skip; | |
1515 | nshift *= 1000; | |
1516 | } | |
1517 | return retval; | |
1518 | } | |
1519 | ||
4e553d73 | 1520 | /* |
ffb4593c NT |
1521 | * S_force_version |
1522 | * Forces the next token to be a version number. | |
e759cc13 RGS |
1523 | * If the next token appears to be an invalid version number, (e.g. "v2b"), |
1524 | * and if "guessing" is TRUE, then no new token is created (and the caller | |
1525 | * must use an alternative parsing method). | |
ffb4593c NT |
1526 | */ |
1527 | ||
76e3520e | 1528 | STATIC char * |
e759cc13 | 1529 | S_force_version(pTHX_ char *s, int guessing) |
89bfa8cd | 1530 | { |
97aff369 | 1531 | dVAR; |
5f66b61c | 1532 | OP *version = NULL; |
44dcb63b | 1533 | char *d; |
5db06880 NC |
1534 | #ifdef PERL_MAD |
1535 | I32 startoff = s - SvPVX(PL_linestr); | |
1536 | #endif | |
89bfa8cd | 1537 | |
7918f24d NC |
1538 | PERL_ARGS_ASSERT_FORCE_VERSION; |
1539 | ||
29595ff2 | 1540 | s = SKIPSPACE1(s); |
89bfa8cd | 1541 | |
44dcb63b | 1542 | d = s; |
dd629d5b | 1543 | if (*d == 'v') |
44dcb63b | 1544 | d++; |
44dcb63b | 1545 | if (isDIGIT(*d)) { |
e759cc13 RGS |
1546 | while (isDIGIT(*d) || *d == '_' || *d == '.') |
1547 | d++; | |
5db06880 NC |
1548 | #ifdef PERL_MAD |
1549 | if (PL_madskills) { | |
cd81e915 | 1550 | start_force(PL_curforce); |
5db06880 NC |
1551 | curmad('X', newSVpvn(s,d-s)); |
1552 | } | |
1553 | #endif | |
9f3d182e | 1554 | if (*d == ';' || isSPACE(*d) || *d == '}' || !*d) { |
dd629d5b | 1555 | SV *ver; |
6154021b RGS |
1556 | s = scan_num(s, &pl_yylval); |
1557 | version = pl_yylval.opval; | |
dd629d5b GS |
1558 | ver = cSVOPx(version)->op_sv; |
1559 | if (SvPOK(ver) && !SvNIOK(ver)) { | |
862a34c6 | 1560 | SvUPGRADE(ver, SVt_PVNV); |
9d6ce603 | 1561 | SvNV_set(ver, str_to_version(ver)); |
1571675a | 1562 | SvNOK_on(ver); /* hint that it is a version */ |
44dcb63b | 1563 | } |
89bfa8cd | 1564 | } |
5db06880 NC |
1565 | else if (guessing) { |
1566 | #ifdef PERL_MAD | |
1567 | if (PL_madskills) { | |
cd81e915 NC |
1568 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1569 | PL_nextwhite = 0; | |
5db06880 NC |
1570 | s = SvPVX(PL_linestr) + startoff; |
1571 | } | |
1572 | #endif | |
e759cc13 | 1573 | return s; |
5db06880 | 1574 | } |
89bfa8cd | 1575 | } |
1576 | ||
5db06880 NC |
1577 | #ifdef PERL_MAD |
1578 | if (PL_madskills && !version) { | |
cd81e915 NC |
1579 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1580 | PL_nextwhite = 0; | |
5db06880 NC |
1581 | s = SvPVX(PL_linestr) + startoff; |
1582 | } | |
1583 | #endif | |
89bfa8cd | 1584 | /* NOTE: The parser sees the package name and the VERSION swapped */ |
cd81e915 | 1585 | start_force(PL_curforce); |
9ded7720 | 1586 | NEXTVAL_NEXTTOKE.opval = version; |
4e553d73 | 1587 | force_next(WORD); |
89bfa8cd | 1588 | |
e759cc13 | 1589 | return s; |
89bfa8cd | 1590 | } |
1591 | ||
ffb4593c NT |
1592 | /* |
1593 | * S_tokeq | |
1594 | * Tokenize a quoted string passed in as an SV. It finds the next | |
1595 | * chunk, up to end of string or a backslash. It may make a new | |
1596 | * SV containing that chunk (if HINT_NEW_STRING is on). It also | |
1597 | * turns \\ into \. | |
1598 | */ | |
1599 | ||
76e3520e | 1600 | STATIC SV * |
cea2e8a9 | 1601 | S_tokeq(pTHX_ SV *sv) |
79072805 | 1602 | { |
97aff369 | 1603 | dVAR; |
79072805 LW |
1604 | register char *s; |
1605 | register char *send; | |
1606 | register char *d; | |
b3ac6de7 IZ |
1607 | STRLEN len = 0; |
1608 | SV *pv = sv; | |
79072805 | 1609 | |
7918f24d NC |
1610 | PERL_ARGS_ASSERT_TOKEQ; |
1611 | ||
79072805 | 1612 | if (!SvLEN(sv)) |
b3ac6de7 | 1613 | goto finish; |
79072805 | 1614 | |
a0d0e21e | 1615 | s = SvPV_force(sv, len); |
21a311ee | 1616 | if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) |
b3ac6de7 | 1617 | goto finish; |
463ee0b2 | 1618 | send = s + len; |
79072805 LW |
1619 | while (s < send && *s != '\\') |
1620 | s++; | |
1621 | if (s == send) | |
b3ac6de7 | 1622 | goto finish; |
79072805 | 1623 | d = s; |
be4731d2 | 1624 | if ( PL_hints & HINT_NEW_STRING ) { |
59cd0e26 | 1625 | pv = newSVpvn_flags(SvPVX_const(pv), len, SVs_TEMP | SvUTF8(sv)); |
be4731d2 | 1626 | } |
79072805 LW |
1627 | while (s < send) { |
1628 | if (*s == '\\') { | |
a0d0e21e | 1629 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
1630 | s++; /* all that, just for this */ |
1631 | } | |
1632 | *d++ = *s++; | |
1633 | } | |
1634 | *d = '\0'; | |
95a20fc0 | 1635 | SvCUR_set(sv, d - SvPVX_const(sv)); |
b3ac6de7 | 1636 | finish: |
3280af22 | 1637 | if ( PL_hints & HINT_NEW_STRING ) |
eb0d8d16 | 1638 | return new_constant(NULL, 0, "q", sv, pv, "q", 1); |
79072805 LW |
1639 | return sv; |
1640 | } | |
1641 | ||
ffb4593c NT |
1642 | /* |
1643 | * Now come three functions related to double-quote context, | |
1644 | * S_sublex_start, S_sublex_push, and S_sublex_done. They're used when | |
1645 | * converting things like "\u\Lgnat" into ucfirst(lc("gnat")). They | |
1646 | * interact with PL_lex_state, and create fake ( ... ) argument lists | |
1647 | * to handle functions and concatenation. | |
1648 | * They assume that whoever calls them will be setting up a fake | |
1649 | * join call, because each subthing puts a ',' after it. This lets | |
1650 | * "lower \luPpEr" | |
1651 | * become | |
1652 | * join($, , 'lower ', lcfirst( 'uPpEr', ) ,) | |
1653 | * | |
1654 | * (I'm not sure whether the spurious commas at the end of lcfirst's | |
1655 | * arguments and join's arguments are created or not). | |
1656 | */ | |
1657 | ||
1658 | /* | |
1659 | * S_sublex_start | |
6154021b | 1660 | * Assumes that pl_yylval.ival is the op we're creating (e.g. OP_LCFIRST). |
ffb4593c NT |
1661 | * |
1662 | * Pattern matching will set PL_lex_op to the pattern-matching op to | |
6154021b | 1663 | * make (we return THING if pl_yylval.ival is OP_NULL, PMFUNC otherwise). |
ffb4593c NT |
1664 | * |
1665 | * OP_CONST and OP_READLINE are easy--just make the new op and return. | |
1666 | * | |
1667 | * Everything else becomes a FUNC. | |
1668 | * | |
1669 | * Sets PL_lex_state to LEX_INTERPPUSH unless (ival was OP_NULL or we | |
1670 | * had an OP_CONST or OP_READLINE). This just sets us up for a | |
1671 | * call to S_sublex_push(). | |
1672 | */ | |
1673 | ||
76e3520e | 1674 | STATIC I32 |
cea2e8a9 | 1675 | S_sublex_start(pTHX) |
79072805 | 1676 | { |
97aff369 | 1677 | dVAR; |
6154021b | 1678 | register const I32 op_type = pl_yylval.ival; |
79072805 LW |
1679 | |
1680 | if (op_type == OP_NULL) { | |
6154021b | 1681 | pl_yylval.opval = PL_lex_op; |
5f66b61c | 1682 | PL_lex_op = NULL; |
79072805 LW |
1683 | return THING; |
1684 | } | |
1685 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
3280af22 | 1686 | SV *sv = tokeq(PL_lex_stuff); |
b3ac6de7 IZ |
1687 | |
1688 | if (SvTYPE(sv) == SVt_PVIV) { | |
1689 | /* Overloaded constants, nothing fancy: Convert to SVt_PV: */ | |
1690 | STRLEN len; | |
96a5add6 | 1691 | const char * const p = SvPV_const(sv, len); |
740cce10 | 1692 | SV * const nsv = newSVpvn_flags(p, len, SvUTF8(sv)); |
b3ac6de7 IZ |
1693 | SvREFCNT_dec(sv); |
1694 | sv = nsv; | |
4e553d73 | 1695 | } |
6154021b | 1696 | pl_yylval.opval = (OP*)newSVOP(op_type, 0, sv); |
a0714e2c | 1697 | PL_lex_stuff = NULL; |
6f33ba73 RGS |
1698 | /* Allow <FH> // "foo" */ |
1699 | if (op_type == OP_READLINE) | |
1700 | PL_expect = XTERMORDORDOR; | |
79072805 LW |
1701 | return THING; |
1702 | } | |
e3f73d4e RGS |
1703 | else if (op_type == OP_BACKTICK && PL_lex_op) { |
1704 | /* readpipe() vas overriden */ | |
1705 | cSVOPx(cLISTOPx(cUNOPx(PL_lex_op)->op_first)->op_first->op_sibling)->op_sv = tokeq(PL_lex_stuff); | |
6154021b | 1706 | pl_yylval.opval = PL_lex_op; |
9b201d7d | 1707 | PL_lex_op = NULL; |
e3f73d4e RGS |
1708 | PL_lex_stuff = NULL; |
1709 | return THING; | |
1710 | } | |
79072805 | 1711 | |
3280af22 | 1712 | PL_sublex_info.super_state = PL_lex_state; |
eac04b2e | 1713 | PL_sublex_info.sub_inwhat = (U16)op_type; |
3280af22 NIS |
1714 | PL_sublex_info.sub_op = PL_lex_op; |
1715 | PL_lex_state = LEX_INTERPPUSH; | |
55497cff | 1716 | |
3280af22 NIS |
1717 | PL_expect = XTERM; |
1718 | if (PL_lex_op) { | |
6154021b | 1719 | pl_yylval.opval = PL_lex_op; |
5f66b61c | 1720 | PL_lex_op = NULL; |
55497cff | 1721 | return PMFUNC; |
1722 | } | |
1723 | else | |
1724 | return FUNC; | |
1725 | } | |
1726 | ||
ffb4593c NT |
1727 | /* |
1728 | * S_sublex_push | |
1729 | * Create a new scope to save the lexing state. The scope will be | |
1730 | * ended in S_sublex_done. Returns a '(', starting the function arguments | |
1731 | * to the uc, lc, etc. found before. | |
1732 | * Sets PL_lex_state to LEX_INTERPCONCAT. | |
1733 | */ | |
1734 | ||
76e3520e | 1735 | STATIC I32 |
cea2e8a9 | 1736 | S_sublex_push(pTHX) |
55497cff | 1737 | { |
27da23d5 | 1738 | dVAR; |
f46d017c | 1739 | ENTER; |
55497cff | 1740 | |
3280af22 | 1741 | PL_lex_state = PL_sublex_info.super_state; |
651b5b28 | 1742 | SAVEBOOL(PL_lex_dojoin); |
3280af22 | 1743 | SAVEI32(PL_lex_brackets); |
3280af22 NIS |
1744 | SAVEI32(PL_lex_casemods); |
1745 | SAVEI32(PL_lex_starts); | |
651b5b28 | 1746 | SAVEI8(PL_lex_state); |
7766f137 | 1747 | SAVEVPTR(PL_lex_inpat); |
98246f1e | 1748 | SAVEI16(PL_lex_inwhat); |
57843af0 | 1749 | SAVECOPLINE(PL_curcop); |
3280af22 | 1750 | SAVEPPTR(PL_bufptr); |
8452ff4b | 1751 | SAVEPPTR(PL_bufend); |
3280af22 NIS |
1752 | SAVEPPTR(PL_oldbufptr); |
1753 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
1754 | SAVEPPTR(PL_last_lop); |
1755 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
1756 | SAVEPPTR(PL_linestart); |
1757 | SAVESPTR(PL_linestr); | |
8edd5f42 RGS |
1758 | SAVEGENERICPV(PL_lex_brackstack); |
1759 | SAVEGENERICPV(PL_lex_casestack); | |
3280af22 NIS |
1760 | |
1761 | PL_linestr = PL_lex_stuff; | |
a0714e2c | 1762 | PL_lex_stuff = NULL; |
3280af22 | 1763 | |
9cbb5ea2 GS |
1764 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart |
1765 | = SvPVX(PL_linestr); | |
3280af22 | 1766 | PL_bufend += SvCUR(PL_linestr); |
bd61b366 | 1767 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1768 | SAVEFREESV(PL_linestr); |
1769 | ||
1770 | PL_lex_dojoin = FALSE; | |
1771 | PL_lex_brackets = 0; | |
a02a5408 JC |
1772 | Newx(PL_lex_brackstack, 120, char); |
1773 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
1774 | PL_lex_casemods = 0; |
1775 | *PL_lex_casestack = '\0'; | |
1776 | PL_lex_starts = 0; | |
1777 | PL_lex_state = LEX_INTERPCONCAT; | |
eb160463 | 1778 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 NIS |
1779 | |
1780 | PL_lex_inwhat = PL_sublex_info.sub_inwhat; | |
1781 | if (PL_lex_inwhat == OP_MATCH || PL_lex_inwhat == OP_QR || PL_lex_inwhat == OP_SUBST) | |
1782 | PL_lex_inpat = PL_sublex_info.sub_op; | |
79072805 | 1783 | else |
5f66b61c | 1784 | PL_lex_inpat = NULL; |
79072805 | 1785 | |
55497cff | 1786 | return '('; |
79072805 LW |
1787 | } |
1788 | ||
ffb4593c NT |
1789 | /* |
1790 | * S_sublex_done | |
1791 | * Restores lexer state after a S_sublex_push. | |
1792 | */ | |
1793 | ||
76e3520e | 1794 | STATIC I32 |
cea2e8a9 | 1795 | S_sublex_done(pTHX) |
79072805 | 1796 | { |
27da23d5 | 1797 | dVAR; |
3280af22 | 1798 | if (!PL_lex_starts++) { |
396482e1 | 1799 | SV * const sv = newSVpvs(""); |
9aa983d2 JH |
1800 | if (SvUTF8(PL_linestr)) |
1801 | SvUTF8_on(sv); | |
3280af22 | 1802 | PL_expect = XOPERATOR; |
6154021b | 1803 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
79072805 LW |
1804 | return THING; |
1805 | } | |
1806 | ||
3280af22 NIS |
1807 | if (PL_lex_casemods) { /* oops, we've got some unbalanced parens */ |
1808 | PL_lex_state = LEX_INTERPCASEMOD; | |
cea2e8a9 | 1809 | return yylex(); |
79072805 LW |
1810 | } |
1811 | ||
ffb4593c | 1812 | /* Is there a right-hand side to take care of? (s//RHS/ or tr//RHS/) */ |
3280af22 NIS |
1813 | if (PL_lex_repl && (PL_lex_inwhat == OP_SUBST || PL_lex_inwhat == OP_TRANS)) { |
1814 | PL_linestr = PL_lex_repl; | |
1815 | PL_lex_inpat = 0; | |
1816 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
1817 | PL_bufend += SvCUR(PL_linestr); | |
bd61b366 | 1818 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1819 | SAVEFREESV(PL_linestr); |
1820 | PL_lex_dojoin = FALSE; | |
1821 | PL_lex_brackets = 0; | |
3280af22 NIS |
1822 | PL_lex_casemods = 0; |
1823 | *PL_lex_casestack = '\0'; | |
1824 | PL_lex_starts = 0; | |
25da4f38 | 1825 | if (SvEVALED(PL_lex_repl)) { |
3280af22 NIS |
1826 | PL_lex_state = LEX_INTERPNORMAL; |
1827 | PL_lex_starts++; | |
e9fa98b2 HS |
1828 | /* we don't clear PL_lex_repl here, so that we can check later |
1829 | whether this is an evalled subst; that means we rely on the | |
1830 | logic to ensure sublex_done() is called again only via the | |
1831 | branch (in yylex()) that clears PL_lex_repl, else we'll loop */ | |
79072805 | 1832 | } |
e9fa98b2 | 1833 | else { |
3280af22 | 1834 | PL_lex_state = LEX_INTERPCONCAT; |
a0714e2c | 1835 | PL_lex_repl = NULL; |
e9fa98b2 | 1836 | } |
79072805 | 1837 | return ','; |
ffed7fef LW |
1838 | } |
1839 | else { | |
5db06880 NC |
1840 | #ifdef PERL_MAD |
1841 | if (PL_madskills) { | |
cd81e915 NC |
1842 | if (PL_thiswhite) { |
1843 | if (!PL_endwhite) | |
6b29d1f5 | 1844 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
1845 | sv_catsv(PL_endwhite, PL_thiswhite); |
1846 | PL_thiswhite = 0; | |
1847 | } | |
1848 | if (PL_thistoken) | |
1849 | sv_setpvn(PL_thistoken,"",0); | |
5db06880 | 1850 | else |
cd81e915 | 1851 | PL_realtokenstart = -1; |
5db06880 NC |
1852 | } |
1853 | #endif | |
f46d017c | 1854 | LEAVE; |
3280af22 NIS |
1855 | PL_bufend = SvPVX(PL_linestr); |
1856 | PL_bufend += SvCUR(PL_linestr); | |
1857 | PL_expect = XOPERATOR; | |
09bef843 | 1858 | PL_sublex_info.sub_inwhat = 0; |
79072805 | 1859 | return ')'; |
ffed7fef LW |
1860 | } |
1861 | } | |
1862 | ||
02aa26ce NT |
1863 | /* |
1864 | scan_const | |
1865 | ||
1866 | Extracts a pattern, double-quoted string, or transliteration. This | |
1867 | is terrifying code. | |
1868 | ||
94def140 | 1869 | It looks at PL_lex_inwhat and PL_lex_inpat to find out whether it's |
3280af22 | 1870 | processing a pattern (PL_lex_inpat is true), a transliteration |
94def140 | 1871 | (PL_lex_inwhat == OP_TRANS is true), or a double-quoted string. |
02aa26ce | 1872 | |
94def140 TS |
1873 | Returns a pointer to the character scanned up to. If this is |
1874 | advanced from the start pointer supplied (i.e. if anything was | |
9b599b2a | 1875 | successfully parsed), will leave an OP for the substring scanned |
6154021b | 1876 | in pl_yylval. Caller must intuit reason for not parsing further |
9b599b2a GS |
1877 | by looking at the next characters herself. |
1878 | ||
02aa26ce NT |
1879 | In patterns: |
1880 | backslashes: | |
1881 | double-quoted style: \r and \n | |
1882 | regexp special ones: \D \s | |
94def140 TS |
1883 | constants: \x31 |
1884 | backrefs: \1 | |
02aa26ce NT |
1885 | case and quoting: \U \Q \E |
1886 | stops on @ and $, but not for $ as tail anchor | |
1887 | ||
1888 | In transliterations: | |
1889 | characters are VERY literal, except for - not at the start or end | |
94def140 TS |
1890 | of the string, which indicates a range. If the range is in bytes, |
1891 | scan_const expands the range to the full set of intermediate | |
1892 | characters. If the range is in utf8, the hyphen is replaced with | |
1893 | a certain range mark which will be handled by pmtrans() in op.c. | |
02aa26ce NT |
1894 | |
1895 | In double-quoted strings: | |
1896 | backslashes: | |
1897 | double-quoted style: \r and \n | |
94def140 TS |
1898 | constants: \x31 |
1899 | deprecated backrefs: \1 (in substitution replacements) | |
02aa26ce NT |
1900 | case and quoting: \U \Q \E |
1901 | stops on @ and $ | |
1902 | ||
1903 | scan_const does *not* construct ops to handle interpolated strings. | |
1904 | It stops processing as soon as it finds an embedded $ or @ variable | |
1905 | and leaves it to the caller to work out what's going on. | |
1906 | ||
94def140 TS |
1907 | embedded arrays (whether in pattern or not) could be: |
1908 | @foo, @::foo, @'foo, @{foo}, @$foo, @+, @-. | |
1909 | ||
1910 | $ in double-quoted strings must be the symbol of an embedded scalar. | |
02aa26ce NT |
1911 | |
1912 | $ in pattern could be $foo or could be tail anchor. Assumption: | |
1913 | it's a tail anchor if $ is the last thing in the string, or if it's | |
94def140 | 1914 | followed by one of "()| \r\n\t" |
02aa26ce NT |
1915 | |
1916 | \1 (backreferences) are turned into $1 | |
1917 | ||
1918 | The structure of the code is | |
1919 | while (there's a character to process) { | |
94def140 TS |
1920 | handle transliteration ranges |
1921 | skip regexp comments /(?#comment)/ and codes /(?{code})/ | |
1922 | skip #-initiated comments in //x patterns | |
1923 | check for embedded arrays | |
02aa26ce NT |
1924 | check for embedded scalars |
1925 | if (backslash) { | |
94def140 TS |
1926 | leave intact backslashes from leaveit (below) |
1927 | deprecate \1 in substitution replacements | |
02aa26ce NT |
1928 | handle string-changing backslashes \l \U \Q \E, etc. |
1929 | switch (what was escaped) { | |
94def140 TS |
1930 | handle \- in a transliteration (becomes a literal -) |
1931 | handle \132 (octal characters) | |
1932 | handle \x15 and \x{1234} (hex characters) | |
1933 | handle \N{name} (named characters) | |
1934 | handle \cV (control characters) | |
1935 | handle printf-style backslashes (\f, \r, \n, etc) | |
02aa26ce NT |
1936 | } (end switch) |
1937 | } (end if backslash) | |
1938 | } (end while character to read) | |
4e553d73 | 1939 | |
02aa26ce NT |
1940 | */ |
1941 | ||
76e3520e | 1942 | STATIC char * |
cea2e8a9 | 1943 | S_scan_const(pTHX_ char *start) |
79072805 | 1944 | { |
97aff369 | 1945 | dVAR; |
3280af22 | 1946 | register char *send = PL_bufend; /* end of the constant */ |
561b68a9 | 1947 | SV *sv = newSV(send - start); /* sv for the constant */ |
02aa26ce NT |
1948 | register char *s = start; /* start of the constant */ |
1949 | register char *d = SvPVX(sv); /* destination for copies */ | |
1950 | bool dorange = FALSE; /* are we in a translit range? */ | |
c2e66d9e | 1951 | bool didrange = FALSE; /* did we just finish a range? */ |
2b9d42f0 NIS |
1952 | I32 has_utf8 = FALSE; /* Output constant is UTF8 */ |
1953 | I32 this_utf8 = UTF; /* The source string is assumed to be UTF8 */ | |
012bcf8d | 1954 | UV uv; |
4c3a8340 TS |
1955 | #ifdef EBCDIC |
1956 | UV literal_endpoint = 0; | |
e294cc5d | 1957 | bool native_range = TRUE; /* turned to FALSE if the first endpoint is Unicode. */ |
4c3a8340 | 1958 | #endif |
012bcf8d | 1959 | |
7918f24d NC |
1960 | PERL_ARGS_ASSERT_SCAN_CONST; |
1961 | ||
2b9d42f0 NIS |
1962 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
1963 | /* If we are doing a trans and we know we want UTF8 set expectation */ | |
1964 | has_utf8 = PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF); | |
1965 | this_utf8 = PL_sublex_info.sub_op->op_private & (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
1966 | } | |
1967 | ||
1968 | ||
79072805 | 1969 | while (s < send || dorange) { |
02aa26ce | 1970 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 1971 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 1972 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 1973 | if (dorange) { |
1ba5c669 JH |
1974 | I32 i; /* current expanded character */ |
1975 | I32 min; /* first character in range */ | |
1976 | I32 max; /* last character in range */ | |
02aa26ce | 1977 | |
e294cc5d JH |
1978 | #ifdef EBCDIC |
1979 | UV uvmax = 0; | |
1980 | #endif | |
1981 | ||
1982 | if (has_utf8 | |
1983 | #ifdef EBCDIC | |
1984 | && !native_range | |
1985 | #endif | |
1986 | ) { | |
9d4ba2ae | 1987 | char * const c = (char*)utf8_hop((U8*)d, -1); |
8973db79 JH |
1988 | char *e = d++; |
1989 | while (e-- > c) | |
1990 | *(e + 1) = *e; | |
25716404 | 1991 | *c = (char)UTF_TO_NATIVE(0xff); |
8973db79 JH |
1992 | /* mark the range as done, and continue */ |
1993 | dorange = FALSE; | |
1994 | didrange = TRUE; | |
1995 | continue; | |
1996 | } | |
2b9d42f0 | 1997 | |
95a20fc0 | 1998 | i = d - SvPVX_const(sv); /* remember current offset */ |
e294cc5d JH |
1999 | #ifdef EBCDIC |
2000 | SvGROW(sv, | |
2001 | SvLEN(sv) + (has_utf8 ? | |
2002 | (512 - UTF_CONTINUATION_MARK + | |
2003 | UNISKIP(0x100)) | |
2004 | : 256)); | |
2005 | /* How many two-byte within 0..255: 128 in UTF-8, | |
2006 | * 96 in UTF-8-mod. */ | |
2007 | #else | |
9cbb5ea2 | 2008 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
e294cc5d | 2009 | #endif |
9cbb5ea2 | 2010 | d = SvPVX(sv) + i; /* refresh d after realloc */ |
e294cc5d JH |
2011 | #ifdef EBCDIC |
2012 | if (has_utf8) { | |
2013 | int j; | |
2014 | for (j = 0; j <= 1; j++) { | |
2015 | char * const c = (char*)utf8_hop((U8*)d, -1); | |
2016 | const UV uv = utf8n_to_uvchr((U8*)c, d - c, NULL, 0); | |
2017 | if (j) | |
2018 | min = (U8)uv; | |
2019 | else if (uv < 256) | |
2020 | max = (U8)uv; | |
2021 | else { | |
2022 | max = (U8)0xff; /* only to \xff */ | |
2023 | uvmax = uv; /* \x{100} to uvmax */ | |
2024 | } | |
2025 | d = c; /* eat endpoint chars */ | |
2026 | } | |
2027 | } | |
2028 | else { | |
2029 | #endif | |
2030 | d -= 2; /* eat the first char and the - */ | |
2031 | min = (U8)*d; /* first char in range */ | |
2032 | max = (U8)d[1]; /* last char in range */ | |
2033 | #ifdef EBCDIC | |
2034 | } | |
2035 | #endif | |
8ada0baa | 2036 | |
c2e66d9e | 2037 | if (min > max) { |
01ec43d0 | 2038 | Perl_croak(aTHX_ |
d1573ac7 | 2039 | "Invalid range \"%c-%c\" in transliteration operator", |
1ba5c669 | 2040 | (char)min, (char)max); |
c2e66d9e GS |
2041 | } |
2042 | ||
c7f1f016 | 2043 | #ifdef EBCDIC |
4c3a8340 TS |
2044 | if (literal_endpoint == 2 && |
2045 | ((isLOWER(min) && isLOWER(max)) || | |
2046 | (isUPPER(min) && isUPPER(max)))) { | |
8ada0baa JH |
2047 | if (isLOWER(min)) { |
2048 | for (i = min; i <= max; i++) | |
2049 | if (isLOWER(i)) | |
db42d148 | 2050 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
2051 | } else { |
2052 | for (i = min; i <= max; i++) | |
2053 | if (isUPPER(i)) | |
db42d148 | 2054 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
2055 | } |
2056 | } | |
2057 | else | |
2058 | #endif | |
2059 | for (i = min; i <= max; i++) | |
e294cc5d JH |
2060 | #ifdef EBCDIC |
2061 | if (has_utf8) { | |
2062 | const U8 ch = (U8)NATIVE_TO_UTF(i); | |
2063 | if (UNI_IS_INVARIANT(ch)) | |
2064 | *d++ = (U8)i; | |
2065 | else { | |
2066 | *d++ = (U8)UTF8_EIGHT_BIT_HI(ch); | |
2067 | *d++ = (U8)UTF8_EIGHT_BIT_LO(ch); | |
2068 | } | |
2069 | } | |
2070 | else | |
2071 | #endif | |
2072 | *d++ = (char)i; | |
2073 | ||
2074 | #ifdef EBCDIC | |
2075 | if (uvmax) { | |
2076 | d = (char*)uvchr_to_utf8((U8*)d, 0x100); | |
2077 | if (uvmax > 0x101) | |
2078 | *d++ = (char)UTF_TO_NATIVE(0xff); | |
2079 | if (uvmax > 0x100) | |
2080 | d = (char*)uvchr_to_utf8((U8*)d, uvmax); | |
2081 | } | |
2082 | #endif | |
02aa26ce NT |
2083 | |
2084 | /* mark the range as done, and continue */ | |
79072805 | 2085 | dorange = FALSE; |
01ec43d0 | 2086 | didrange = TRUE; |
4c3a8340 TS |
2087 | #ifdef EBCDIC |
2088 | literal_endpoint = 0; | |
2089 | #endif | |
79072805 | 2090 | continue; |
4e553d73 | 2091 | } |
02aa26ce NT |
2092 | |
2093 | /* range begins (ignore - as first or last char) */ | |
79072805 | 2094 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 2095 | if (didrange) { |
1fafa243 | 2096 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 2097 | } |
e294cc5d JH |
2098 | if (has_utf8 |
2099 | #ifdef EBCDIC | |
2100 | && !native_range | |
2101 | #endif | |
2102 | ) { | |
25716404 | 2103 | *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
2104 | s++; |
2105 | continue; | |
2106 | } | |
79072805 LW |
2107 | dorange = TRUE; |
2108 | s++; | |
01ec43d0 GS |
2109 | } |
2110 | else { | |
2111 | didrange = FALSE; | |
4c3a8340 TS |
2112 | #ifdef EBCDIC |
2113 | literal_endpoint = 0; | |
e294cc5d | 2114 | native_range = TRUE; |
4c3a8340 | 2115 | #endif |
01ec43d0 | 2116 | } |
79072805 | 2117 | } |
02aa26ce NT |
2118 | |
2119 | /* if we get here, we're not doing a transliteration */ | |
2120 | ||
0f5d15d6 IZ |
2121 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
2122 | except for the last char, which will be done separately. */ | |
3280af22 | 2123 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 | 2124 | if (s[2] == '#') { |
e994fd66 | 2125 | while (s+1 < send && *s != ')') |
db42d148 | 2126 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
155aba94 GS |
2127 | } |
2128 | else if (s[2] == '{' /* This should match regcomp.c */ | |
67edc0c9 | 2129 | || (s[2] == '?' && s[3] == '{')) |
155aba94 | 2130 | { |
cc6b7395 | 2131 | I32 count = 1; |
0f5d15d6 | 2132 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
2133 | char c; |
2134 | ||
d9f97599 GS |
2135 | while (count && (c = *regparse)) { |
2136 | if (c == '\\' && regparse[1]) | |
2137 | regparse++; | |
4e553d73 | 2138 | else if (c == '{') |
cc6b7395 | 2139 | count++; |
4e553d73 | 2140 | else if (c == '}') |
cc6b7395 | 2141 | count--; |
d9f97599 | 2142 | regparse++; |
cc6b7395 | 2143 | } |
e994fd66 | 2144 | if (*regparse != ')') |
5bdf89e7 | 2145 | regparse--; /* Leave one char for continuation. */ |
0f5d15d6 | 2146 | while (s < regparse) |
db42d148 | 2147 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
cc6b7395 | 2148 | } |
748a9306 | 2149 | } |
02aa26ce NT |
2150 | |
2151 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
2152 | else if (*s == '#' && PL_lex_inpat && |
2153 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 | 2154 | while (s+1 < send && *s != '\n') |
db42d148 | 2155 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
748a9306 | 2156 | } |
02aa26ce | 2157 | |
5d1d4326 | 2158 | /* check for embedded arrays |
da6eedaa | 2159 | (@foo, @::foo, @'foo, @{foo}, @$foo, @+, @-) |
5d1d4326 | 2160 | */ |
1749ea0d TS |
2161 | else if (*s == '@' && s[1]) { |
2162 | if (isALNUM_lazy_if(s+1,UTF)) | |
2163 | break; | |
2164 | if (strchr(":'{$", s[1])) | |
2165 | break; | |
2166 | if (!PL_lex_inpat && (s[1] == '+' || s[1] == '-')) | |
2167 | break; /* in regexp, neither @+ nor @- are interpolated */ | |
2168 | } | |
02aa26ce NT |
2169 | |
2170 | /* check for embedded scalars. only stop if we're sure it's a | |
2171 | variable. | |
2172 | */ | |
79072805 | 2173 | else if (*s == '$') { |
3280af22 | 2174 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 2175 | break; |
6002328a | 2176 | if (s + 1 < send && !strchr("()| \r\n\t", s[1])) |
79072805 LW |
2177 | break; /* in regexp, $ might be tail anchor */ |
2178 | } | |
02aa26ce | 2179 | |
2b9d42f0 NIS |
2180 | /* End of else if chain - OP_TRANS rejoin rest */ |
2181 | ||
02aa26ce | 2182 | /* backslashes */ |
79072805 LW |
2183 | if (*s == '\\' && s+1 < send) { |
2184 | s++; | |
02aa26ce | 2185 | |
02aa26ce | 2186 | /* deprecate \1 in strings and substitution replacements */ |
3280af22 | 2187 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 2188 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 2189 | { |
599cee73 | 2190 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 2191 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s); |
79072805 LW |
2192 | *--s = '$'; |
2193 | break; | |
2194 | } | |
02aa26ce NT |
2195 | |
2196 | /* string-change backslash escapes */ | |
3280af22 | 2197 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
2198 | --s; |
2199 | break; | |
2200 | } | |
cc74c5bd TS |
2201 | /* skip any other backslash escapes in a pattern */ |
2202 | else if (PL_lex_inpat) { | |
2203 | *d++ = NATIVE_TO_NEED(has_utf8,'\\'); | |
2204 | goto default_action; | |
2205 | } | |
02aa26ce NT |
2206 | |
2207 | /* if we get here, it's either a quoted -, or a digit */ | |
79072805 | 2208 | switch (*s) { |
02aa26ce NT |
2209 | |
2210 | /* quoted - in transliterations */ | |
79072805 | 2211 | case '-': |
3280af22 | 2212 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
2213 | *d++ = *s++; |
2214 | continue; | |
2215 | } | |
2216 | /* FALL THROUGH */ | |
2217 | default: | |
11b8faa4 | 2218 | { |
86f97054 | 2219 | if ((isALPHA(*s) || isDIGIT(*s)) && |
041457d9 | 2220 | ckWARN(WARN_MISC)) |
9014280d | 2221 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
e294cc5d JH |
2222 | "Unrecognized escape \\%c passed through", |
2223 | *s); | |
11b8faa4 | 2224 | /* default action is to copy the quoted character */ |
f9a63242 | 2225 | goto default_action; |
11b8faa4 | 2226 | } |
02aa26ce NT |
2227 | |
2228 | /* \132 indicates an octal constant */ | |
79072805 LW |
2229 | case '0': case '1': case '2': case '3': |
2230 | case '4': case '5': case '6': case '7': | |
ba210ebe | 2231 | { |
53305cf1 NC |
2232 | I32 flags = 0; |
2233 | STRLEN len = 3; | |
2234 | uv = grok_oct(s, &len, &flags, NULL); | |
ba210ebe JH |
2235 | s += len; |
2236 | } | |
012bcf8d | 2237 | goto NUM_ESCAPE_INSERT; |
02aa26ce NT |
2238 | |
2239 | /* \x24 indicates a hex constant */ | |
79072805 | 2240 | case 'x': |
a0ed51b3 LW |
2241 | ++s; |
2242 | if (*s == '{') { | |
9d4ba2ae | 2243 | char* const e = strchr(s, '}'); |
a4c04bdc NC |
2244 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
2245 | PERL_SCAN_DISALLOW_PREFIX; | |
53305cf1 | 2246 | STRLEN len; |
355860ce | 2247 | |
53305cf1 | 2248 | ++s; |
adaeee49 | 2249 | if (!e) { |
a0ed51b3 | 2250 | yyerror("Missing right brace on \\x{}"); |
355860ce | 2251 | continue; |
ba210ebe | 2252 | } |
53305cf1 NC |
2253 | len = e - s; |
2254 | uv = grok_hex(s, &len, &flags, NULL); | |
ba210ebe | 2255 | s = e + 1; |
a0ed51b3 LW |
2256 | } |
2257 | else { | |
ba210ebe | 2258 | { |
53305cf1 | 2259 | STRLEN len = 2; |
a4c04bdc | 2260 | I32 flags = PERL_SCAN_DISALLOW_PREFIX; |
53305cf1 | 2261 | uv = grok_hex(s, &len, &flags, NULL); |
ba210ebe JH |
2262 | s += len; |
2263 | } | |
012bcf8d GS |
2264 | } |
2265 | ||
2266 | NUM_ESCAPE_INSERT: | |
2267 | /* Insert oct or hex escaped character. | |
301d3d20 | 2268 | * There will always enough room in sv since such |
db42d148 | 2269 | * escapes will be longer than any UTF-8 sequence |
301d3d20 | 2270 | * they can end up as. */ |
ba7cea30 | 2271 | |
c7f1f016 NIS |
2272 | /* We need to map to chars to ASCII before doing the tests |
2273 | to cover EBCDIC | |
2274 | */ | |
c4d5f83a | 2275 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(uv))) { |
9aa983d2 | 2276 | if (!has_utf8 && uv > 255) { |
301d3d20 JH |
2277 | /* Might need to recode whatever we have |
2278 | * accumulated so far if it contains any | |
2279 | * hibit chars. | |
2280 | * | |
2281 | * (Can't we keep track of that and avoid | |
2282 | * this rescan? --jhi) | |
012bcf8d | 2283 | */ |
c7f1f016 | 2284 | int hicount = 0; |
63cd0674 NIS |
2285 | U8 *c; |
2286 | for (c = (U8 *) SvPVX(sv); c < (U8 *)d; c++) { | |
c4d5f83a | 2287 | if (!NATIVE_IS_INVARIANT(*c)) { |
012bcf8d | 2288 | hicount++; |
db42d148 | 2289 | } |
012bcf8d | 2290 | } |
63cd0674 | 2291 | if (hicount) { |
9d4ba2ae | 2292 | const STRLEN offset = d - SvPVX_const(sv); |
db42d148 NIS |
2293 | U8 *src, *dst; |
2294 | d = SvGROW(sv, SvLEN(sv) + hicount + 1) + offset; | |
2295 | src = (U8 *)d - 1; | |
2296 | dst = src+hicount; | |
2297 | d += hicount; | |
cfd0369c | 2298 | while (src >= (const U8 *)SvPVX_const(sv)) { |
c4d5f83a | 2299 | if (!NATIVE_IS_INVARIANT(*src)) { |
9d4ba2ae | 2300 | const U8 ch = NATIVE_TO_ASCII(*src); |
eb160463 GS |
2301 | *dst-- = (U8)UTF8_EIGHT_BIT_LO(ch); |
2302 | *dst-- = (U8)UTF8_EIGHT_BIT_HI(ch); | |
012bcf8d GS |
2303 | } |
2304 | else { | |
63cd0674 | 2305 | *dst-- = *src; |
012bcf8d | 2306 | } |
c7f1f016 | 2307 | src--; |
012bcf8d GS |
2308 | } |
2309 | } | |
2310 | } | |
2311 | ||
9aa983d2 | 2312 | if (has_utf8 || uv > 255) { |
9041c2e3 | 2313 | d = (char*)uvchr_to_utf8((U8*)d, uv); |
4e553d73 | 2314 | has_utf8 = TRUE; |
f9a63242 JH |
2315 | if (PL_lex_inwhat == OP_TRANS && |
2316 | PL_sublex_info.sub_op) { | |
2317 | PL_sublex_info.sub_op->op_private |= | |
2318 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
2319 | : OPpTRANS_TO_UTF); | |
f9a63242 | 2320 | } |
e294cc5d JH |
2321 | #ifdef EBCDIC |
2322 | if (uv > 255 && !dorange) | |
2323 | native_range = FALSE; | |
2324 | #endif | |
012bcf8d | 2325 | } |
a0ed51b3 | 2326 | else { |
012bcf8d | 2327 | *d++ = (char)uv; |
a0ed51b3 | 2328 | } |
012bcf8d GS |
2329 | } |
2330 | else { | |
c4d5f83a | 2331 | *d++ = (char) uv; |
a0ed51b3 | 2332 | } |
79072805 | 2333 | continue; |
02aa26ce | 2334 | |
b239daa5 | 2335 | /* \N{LATIN SMALL LETTER A} is a named character */ |
4a2d328f | 2336 | case 'N': |
55eda711 | 2337 | ++s; |
423cee85 JH |
2338 | if (*s == '{') { |
2339 | char* e = strchr(s, '}'); | |
155aba94 | 2340 | SV *res; |
423cee85 | 2341 | STRLEN len; |
cfd0369c | 2342 | const char *str; |
4e553d73 | 2343 | |
423cee85 | 2344 | if (!e) { |
5777a3f7 | 2345 | yyerror("Missing right brace on \\N{}"); |
423cee85 JH |
2346 | e = s - 1; |
2347 | goto cont_scan; | |
2348 | } | |
dbc0d4f2 JH |
2349 | if (e > s + 2 && s[1] == 'U' && s[2] == '+') { |
2350 | /* \N{U+...} */ | |
2351 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | | |
2352 | PERL_SCAN_DISALLOW_PREFIX; | |
2353 | s += 3; | |
2354 | len = e - s; | |
2355 | uv = grok_hex(s, &len, &flags, NULL); | |
b57a0404 JH |
2356 | if ( e > s && len != (STRLEN)(e - s) ) { |
2357 | uv = 0xFFFD; | |
fc8cd66c | 2358 | } |
dbc0d4f2 JH |
2359 | s = e + 1; |
2360 | goto NUM_ESCAPE_INSERT; | |
2361 | } | |
55eda711 | 2362 | res = newSVpvn(s + 1, e - s - 1); |
bd61b366 | 2363 | res = new_constant( NULL, 0, "charnames", |
eb0d8d16 | 2364 | res, NULL, s - 2, e - s + 3 ); |
f9a63242 JH |
2365 | if (has_utf8) |
2366 | sv_utf8_upgrade(res); | |
cfd0369c | 2367 | str = SvPV_const(res,len); |
1c47067b JH |
2368 | #ifdef EBCDIC_NEVER_MIND |
2369 | /* charnames uses pack U and that has been | |
2370 | * recently changed to do the below uni->native | |
2371 | * mapping, so this would be redundant (and wrong, | |
2372 | * the code point would be doubly converted). | |
2373 | * But leave this in just in case the pack U change | |
2374 | * gets revoked, but the semantics is still | |
2375 | * desireable for charnames. --jhi */ | |
cddc7ef4 | 2376 | { |
cfd0369c | 2377 | UV uv = utf8_to_uvchr((const U8*)str, 0); |
cddc7ef4 JH |
2378 | |
2379 | if (uv < 0x100) { | |
89ebb4a3 | 2380 | U8 tmpbuf[UTF8_MAXBYTES+1], *d; |
cddc7ef4 JH |
2381 | |
2382 | d = uvchr_to_utf8(tmpbuf, UNI_TO_NATIVE(uv)); | |
2383 | sv_setpvn(res, (char *)tmpbuf, d - tmpbuf); | |
cfd0369c | 2384 | str = SvPV_const(res, len); |
cddc7ef4 JH |
2385 | } |
2386 | } | |
2387 | #endif | |
89491803 | 2388 | if (!has_utf8 && SvUTF8(res)) { |
9d4ba2ae | 2389 | const char * const ostart = SvPVX_const(sv); |
f08d6ad9 GS |
2390 | SvCUR_set(sv, d - ostart); |
2391 | SvPOK_on(sv); | |
e4f3eed8 | 2392 | *d = '\0'; |
f08d6ad9 | 2393 | sv_utf8_upgrade(sv); |
d2f449dd | 2394 | /* this just broke our allocation above... */ |
eb160463 | 2395 | SvGROW(sv, (STRLEN)(send - start)); |
f08d6ad9 | 2396 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 2397 | has_utf8 = TRUE; |
f08d6ad9 | 2398 | } |
eb160463 | 2399 | if (len > (STRLEN)(e - s + 4)) { /* I _guess_ 4 is \N{} --jhi */ |
9d4ba2ae | 2400 | const char * const odest = SvPVX_const(sv); |
423cee85 | 2401 | |
8973db79 | 2402 | SvGROW(sv, (SvLEN(sv) + len - (e - s + 4))); |
423cee85 JH |
2403 | d = SvPVX(sv) + (d - odest); |
2404 | } | |
e294cc5d JH |
2405 | #ifdef EBCDIC |
2406 | if (!dorange) | |
2407 | native_range = FALSE; /* \N{} is guessed to be Unicode */ | |
2408 | #endif | |
423cee85 JH |
2409 | Copy(str, d, len, char); |
2410 | d += len; | |
2411 | SvREFCNT_dec(res); | |
2412 | cont_scan: | |
2413 | s = e + 1; | |
2414 | } | |
2415 | else | |
5777a3f7 | 2416 | yyerror("Missing braces on \\N{}"); |
423cee85 JH |
2417 | continue; |
2418 | ||
02aa26ce | 2419 | /* \c is a control character */ |
79072805 LW |
2420 | case 'c': |
2421 | s++; | |
961ce445 | 2422 | if (s < send) { |
ba210ebe | 2423 | U8 c = *s++; |
c7f1f016 NIS |
2424 | #ifdef EBCDIC |
2425 | if (isLOWER(c)) | |
2426 | c = toUPPER(c); | |
2427 | #endif | |
db42d148 | 2428 | *d++ = NATIVE_TO_NEED(has_utf8,toCTRL(c)); |
ba210ebe | 2429 | } |
961ce445 RGS |
2430 | else { |
2431 | yyerror("Missing control char name in \\c"); | |
2432 | } | |
79072805 | 2433 | continue; |
02aa26ce NT |
2434 | |
2435 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 | 2436 | case 'b': |
db42d148 | 2437 | *d++ = NATIVE_TO_NEED(has_utf8,'\b'); |
79072805 LW |
2438 | break; |
2439 | case 'n': | |
db42d148 | 2440 | *d++ = NATIVE_TO_NEED(has_utf8,'\n'); |
79072805 LW |
2441 | break; |
2442 | case 'r': | |
db42d148 | 2443 | *d++ = NATIVE_TO_NEED(has_utf8,'\r'); |
79072805 LW |
2444 | break; |
2445 | case 'f': | |
db42d148 | 2446 | *d++ = NATIVE_TO_NEED(has_utf8,'\f'); |
79072805 LW |
2447 | break; |
2448 | case 't': | |
db42d148 | 2449 | *d++ = NATIVE_TO_NEED(has_utf8,'\t'); |
79072805 | 2450 | break; |
34a3fe2a | 2451 | case 'e': |
db42d148 | 2452 | *d++ = ASCII_TO_NEED(has_utf8,'\033'); |
34a3fe2a PP |
2453 | break; |
2454 | case 'a': | |
db42d148 | 2455 | *d++ = ASCII_TO_NEED(has_utf8,'\007'); |
79072805 | 2456 | break; |
02aa26ce NT |
2457 | } /* end switch */ |
2458 | ||
79072805 LW |
2459 | s++; |
2460 | continue; | |
02aa26ce | 2461 | } /* end if (backslash) */ |
4c3a8340 TS |
2462 | #ifdef EBCDIC |
2463 | else | |
2464 | literal_endpoint++; | |
2465 | #endif | |
02aa26ce | 2466 | |
f9a63242 | 2467 | default_action: |
2b9d42f0 NIS |
2468 | /* If we started with encoded form, or already know we want it |
2469 | and then encode the next character */ | |
2470 | if ((has_utf8 || this_utf8) && !NATIVE_IS_INVARIANT((U8)(*s))) { | |
2471 | STRLEN len = 1; | |
5f66b61c AL |
2472 | const UV nextuv = (this_utf8) ? utf8n_to_uvchr((U8*)s, send - s, &len, 0) : (UV) ((U8) *s); |
2473 | const STRLEN need = UNISKIP(NATIVE_TO_UNI(nextuv)); | |
2b9d42f0 NIS |
2474 | s += len; |
2475 | if (need > len) { | |
2476 | /* encoded value larger than old, need extra space (NOTE: SvCUR() not set here) */ | |
9d4ba2ae | 2477 | const STRLEN off = d - SvPVX_const(sv); |
2b9d42f0 NIS |
2478 | d = SvGROW(sv, SvLEN(sv) + (need-len)) + off; |
2479 | } | |
5f66b61c | 2480 | d = (char*)uvchr_to_utf8((U8*)d, nextuv); |
2b9d42f0 | 2481 | has_utf8 = TRUE; |
e294cc5d JH |
2482 | #ifdef EBCDIC |
2483 | if (uv > 255 && !dorange) | |
2484 | native_range = FALSE; | |
2485 | #endif | |
2b9d42f0 NIS |
2486 | } |
2487 | else { | |
2488 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
2489 | } | |
02aa26ce NT |
2490 | } /* while loop to process each character */ |
2491 | ||
2492 | /* terminate the string and set up the sv */ | |
79072805 | 2493 | *d = '\0'; |
95a20fc0 | 2494 | SvCUR_set(sv, d - SvPVX_const(sv)); |
2b9d42f0 | 2495 | if (SvCUR(sv) >= SvLEN(sv)) |
d0063567 | 2496 | Perl_croak(aTHX_ "panic: constant overflowed allocated space"); |
2b9d42f0 | 2497 | |
79072805 | 2498 | SvPOK_on(sv); |
9f4817db | 2499 | if (PL_encoding && !has_utf8) { |
d0063567 DK |
2500 | sv_recode_to_utf8(sv, PL_encoding); |
2501 | if (SvUTF8(sv)) | |
2502 | has_utf8 = TRUE; | |
9f4817db | 2503 | } |
2b9d42f0 | 2504 | if (has_utf8) { |
7e2040f0 | 2505 | SvUTF8_on(sv); |
2b9d42f0 | 2506 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
d0063567 | 2507 | PL_sublex_info.sub_op->op_private |= |
2b9d42f0 NIS |
2508 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); |
2509 | } | |
2510 | } | |
79072805 | 2511 | |
02aa26ce | 2512 | /* shrink the sv if we allocated more than we used */ |
79072805 | 2513 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
1da4ca5f | 2514 | SvPV_shrink_to_cur(sv); |
79072805 | 2515 | } |
02aa26ce | 2516 | |
6154021b | 2517 | /* return the substring (via pl_yylval) only if we parsed anything */ |
3280af22 | 2518 | if (s > PL_bufptr) { |
eb0d8d16 NC |
2519 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) { |
2520 | const char *const key = PL_lex_inpat ? "qr" : "q"; | |
2521 | const STRLEN keylen = PL_lex_inpat ? 2 : 1; | |
2522 | const char *type; | |
2523 | STRLEN typelen; | |
2524 | ||
2525 | if (PL_lex_inwhat == OP_TRANS) { | |
2526 | type = "tr"; | |
2527 | typelen = 2; | |
2528 | } else if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) { | |
2529 | type = "s"; | |
2530 | typelen = 1; | |
2531 | } else { | |
2532 | type = "qq"; | |
2533 | typelen = 2; | |
2534 | } | |
2535 | ||
2536 | sv = S_new_constant(aTHX_ start, s - start, key, keylen, sv, NULL, | |
2537 | type, typelen); | |
2538 | } | |
6154021b | 2539 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 2540 | } else |
8990e307 | 2541 | SvREFCNT_dec(sv); |
79072805 LW |
2542 | return s; |
2543 | } | |
2544 | ||
ffb4593c NT |
2545 | /* S_intuit_more |
2546 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
2547 | * FALSE otherwise. | |
ffb4593c NT |
2548 | * |
2549 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
2550 | * | |
2551 | * ->[ and ->{ return TRUE | |
2552 | * { and [ outside a pattern are always subscripts, so return TRUE | |
2553 | * if we're outside a pattern and it's not { or [, then return FALSE | |
2554 | * if we're in a pattern and the first char is a { | |
2555 | * {4,5} (any digits around the comma) returns FALSE | |
2556 | * if we're in a pattern and the first char is a [ | |
2557 | * [] returns FALSE | |
2558 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
2559 | * character class or not. It has to deal with things like | |
2560 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
2561 | * anything else returns TRUE | |
2562 | */ | |
2563 | ||
9cbb5ea2 GS |
2564 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
2565 | ||
76e3520e | 2566 | STATIC int |
cea2e8a9 | 2567 | S_intuit_more(pTHX_ register char *s) |
79072805 | 2568 | { |
97aff369 | 2569 | dVAR; |
7918f24d NC |
2570 | |
2571 | PERL_ARGS_ASSERT_INTUIT_MORE; | |
2572 | ||
3280af22 | 2573 | if (PL_lex_brackets) |
79072805 LW |
2574 | return TRUE; |
2575 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
2576 | return TRUE; | |
2577 | if (*s != '{' && *s != '[') | |
2578 | return FALSE; | |
3280af22 | 2579 | if (!PL_lex_inpat) |
79072805 LW |
2580 | return TRUE; |
2581 | ||
2582 | /* In a pattern, so maybe we have {n,m}. */ | |
2583 | if (*s == '{') { | |
2584 | s++; | |
2585 | if (!isDIGIT(*s)) | |
2586 | return TRUE; | |
2587 | while (isDIGIT(*s)) | |
2588 | s++; | |
2589 | if (*s == ',') | |
2590 | s++; | |
2591 | while (isDIGIT(*s)) | |
2592 | s++; | |
2593 | if (*s == '}') | |
2594 | return FALSE; | |
2595 | return TRUE; | |
2596 | ||
2597 | } | |
2598 | ||
2599 | /* On the other hand, maybe we have a character class */ | |
2600 | ||
2601 | s++; | |
2602 | if (*s == ']' || *s == '^') | |
2603 | return FALSE; | |
2604 | else { | |
ffb4593c | 2605 | /* this is terrifying, and it works */ |
79072805 LW |
2606 | int weight = 2; /* let's weigh the evidence */ |
2607 | char seen[256]; | |
f27ffc4a | 2608 | unsigned char un_char = 255, last_un_char; |
9d4ba2ae | 2609 | const char * const send = strchr(s,']'); |
3280af22 | 2610 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
2611 | |
2612 | if (!send) /* has to be an expression */ | |
2613 | return TRUE; | |
2614 | ||
2615 | Zero(seen,256,char); | |
2616 | if (*s == '$') | |
2617 | weight -= 3; | |
2618 | else if (isDIGIT(*s)) { | |
2619 | if (s[1] != ']') { | |
2620 | if (isDIGIT(s[1]) && s[2] == ']') | |
2621 | weight -= 10; | |
2622 | } | |
2623 | else | |
2624 | weight -= 100; | |
2625 | } | |
2626 | for (; s < send; s++) { | |
2627 | last_un_char = un_char; | |
2628 | un_char = (unsigned char)*s; | |
2629 | switch (*s) { | |
2630 | case '@': | |
2631 | case '&': | |
2632 | case '$': | |
2633 | weight -= seen[un_char] * 10; | |
7e2040f0 | 2634 | if (isALNUM_lazy_if(s+1,UTF)) { |
90e5519e | 2635 | int len; |
8903cb82 | 2636 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
90e5519e NC |
2637 | len = (int)strlen(tmpbuf); |
2638 | if (len > 1 && gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PV)) | |
79072805 LW |
2639 | weight -= 100; |
2640 | else | |
2641 | weight -= 10; | |
2642 | } | |
2643 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
2644 | strchr("[#!%*<>()-=",s[1])) { |
2645 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
2646 | weight -= 10; |
2647 | else | |
2648 | weight -= 1; | |
2649 | } | |
2650 | break; | |
2651 | case '\\': | |
2652 | un_char = 254; | |
2653 | if (s[1]) { | |
93a17b20 | 2654 | if (strchr("wds]",s[1])) |
79072805 | 2655 | weight += 100; |
10edeb5d | 2656 | else if (seen[(U8)'\''] || seen[(U8)'"']) |
79072805 | 2657 | weight += 1; |
93a17b20 | 2658 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
2659 | weight += 40; |
2660 | else if (isDIGIT(s[1])) { | |
2661 | weight += 40; | |
2662 | while (s[1] && isDIGIT(s[1])) | |
2663 | s++; | |
2664 | } | |
2665 | } | |
2666 | else | |
2667 | weight += 100; | |
2668 | break; | |
2669 | case '-': | |
2670 | if (s[1] == '\\') | |
2671 | weight += 50; | |
93a17b20 | 2672 | if (strchr("aA01! ",last_un_char)) |
79072805 | 2673 | weight += 30; |
93a17b20 | 2674 | if (strchr("zZ79~",s[1])) |
79072805 | 2675 | weight += 30; |
f27ffc4a GS |
2676 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
2677 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
2678 | break; |
2679 | default: | |
3792a11b NC |
2680 | if (!isALNUM(last_un_char) |
2681 | && !(last_un_char == '$' || last_un_char == '@' | |
2682 | || last_un_char == '&') | |
2683 | && isALPHA(*s) && s[1] && isALPHA(s[1])) { | |
79072805 LW |
2684 | char *d = tmpbuf; |
2685 | while (isALPHA(*s)) | |
2686 | *d++ = *s++; | |
2687 | *d = '\0'; | |
5458a98a | 2688 | if (keyword(tmpbuf, d - tmpbuf, 0)) |
79072805 LW |
2689 | weight -= 150; |
2690 | } | |
2691 | if (un_char == last_un_char + 1) | |
2692 | weight += 5; | |
2693 | weight -= seen[un_char]; | |
2694 | break; | |
2695 | } | |
2696 | seen[un_char]++; | |
2697 | } | |
2698 | if (weight >= 0) /* probably a character class */ | |
2699 | return FALSE; | |
2700 | } | |
2701 | ||
2702 | return TRUE; | |
2703 | } | |
ffed7fef | 2704 | |
ffb4593c NT |
2705 | /* |
2706 | * S_intuit_method | |
2707 | * | |
2708 | * Does all the checking to disambiguate | |
2709 | * foo bar | |
2710 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
2711 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
2712 | * | |
2713 | * First argument is the stuff after the first token, e.g. "bar". | |
2714 | * | |
2715 | * Not a method if bar is a filehandle. | |
2716 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
2717 | * Not a method if it's really "Foo $bar" | |
2718 | * Method if it's "foo $bar" | |
2719 | * Not a method if it's really "print foo $bar" | |
2720 | * Method if it's really "foo package::" (interpreted as package->foo) | |
8f8cf39c | 2721 | * Not a method if bar is known to be a subroutine ("sub bar; foo bar") |
3cb0bbe5 | 2722 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
2723 | * => |
2724 | */ | |
2725 | ||
76e3520e | 2726 | STATIC int |
62d55b22 | 2727 | S_intuit_method(pTHX_ char *start, GV *gv, CV *cv) |
a0d0e21e | 2728 | { |
97aff369 | 2729 | dVAR; |
a0d0e21e | 2730 | char *s = start + (*start == '$'); |
3280af22 | 2731 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
2732 | STRLEN len; |
2733 | GV* indirgv; | |
5db06880 NC |
2734 | #ifdef PERL_MAD |
2735 | int soff; | |
2736 | #endif | |
a0d0e21e | 2737 | |
7918f24d NC |
2738 | PERL_ARGS_ASSERT_INTUIT_METHOD; |
2739 | ||
a0d0e21e | 2740 | if (gv) { |
62d55b22 | 2741 | if (SvTYPE(gv) == SVt_PVGV && GvIO(gv)) |
a0d0e21e | 2742 | return 0; |
62d55b22 NC |
2743 | if (cv) { |
2744 | if (SvPOK(cv)) { | |
2745 | const char *proto = SvPVX_const(cv); | |
2746 | if (proto) { | |
2747 | if (*proto == ';') | |
2748 | proto++; | |
2749 | if (*proto == '*') | |
2750 | return 0; | |
2751 | } | |
b6c543e3 IZ |
2752 | } |
2753 | } else | |
c35e046a | 2754 | gv = NULL; |
a0d0e21e | 2755 | } |
8903cb82 | 2756 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
2757 | /* start is the beginning of the possible filehandle/object, |
2758 | * and s is the end of it | |
2759 | * tmpbuf is a copy of it | |
2760 | */ | |
2761 | ||
a0d0e21e | 2762 | if (*start == '$') { |
3ef1310e RGS |
2763 | if (gv || PL_last_lop_op == OP_PRINT || PL_last_lop_op == OP_SAY || |
2764 | isUPPER(*PL_tokenbuf)) | |
a0d0e21e | 2765 | return 0; |
5db06880 NC |
2766 | #ifdef PERL_MAD |
2767 | len = start - SvPVX(PL_linestr); | |
2768 | #endif | |
29595ff2 | 2769 | s = PEEKSPACE(s); |
f0092767 | 2770 | #ifdef PERL_MAD |
5db06880 NC |
2771 | start = SvPVX(PL_linestr) + len; |
2772 | #endif | |
3280af22 NIS |
2773 | PL_bufptr = start; |
2774 | PL_expect = XREF; | |
a0d0e21e LW |
2775 | return *s == '(' ? FUNCMETH : METHOD; |
2776 | } | |
5458a98a | 2777 | if (!keyword(tmpbuf, len, 0)) { |
c3e0f903 GS |
2778 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
2779 | len -= 2; | |
2780 | tmpbuf[len] = '\0'; | |
5db06880 NC |
2781 | #ifdef PERL_MAD |
2782 | soff = s - SvPVX(PL_linestr); | |
2783 | #endif | |
c3e0f903 GS |
2784 | goto bare_package; |
2785 | } | |
90e5519e | 2786 | indirgv = gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PVCV); |
8ebc5c01 | 2787 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
2788 | return 0; |
2789 | /* filehandle or package name makes it a method */ | |
da51bb9b | 2790 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, 0)) { |
5db06880 NC |
2791 | #ifdef PERL_MAD |
2792 | soff = s - SvPVX(PL_linestr); | |
2793 | #endif | |
29595ff2 | 2794 | s = PEEKSPACE(s); |
3280af22 | 2795 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 2796 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 2797 | bare_package: |
cd81e915 | 2798 | start_force(PL_curforce); |
9ded7720 | 2799 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, |
79cb57f6 | 2800 | newSVpvn(tmpbuf,len)); |
9ded7720 | 2801 | NEXTVAL_NEXTTOKE.opval->op_private = OPpCONST_BARE; |
5db06880 NC |
2802 | if (PL_madskills) |
2803 | curmad('X', newSVpvn(start,SvPVX(PL_linestr) + soff - start)); | |
3280af22 | 2804 | PL_expect = XTERM; |
a0d0e21e | 2805 | force_next(WORD); |
3280af22 | 2806 | PL_bufptr = s; |
5db06880 NC |
2807 | #ifdef PERL_MAD |
2808 | PL_bufptr = SvPVX(PL_linestr) + soff; /* restart before space */ | |
2809 | #endif | |
a0d0e21e LW |
2810 | return *s == '(' ? FUNCMETH : METHOD; |
2811 | } | |
2812 | } | |
2813 | return 0; | |
2814 | } | |
2815 | ||
16d20bd9 | 2816 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 2817 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
2818 | * Note that the filter function only applies to the current source file |
2819 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
2820 | * | |
2821 | * The datasv parameter (which may be NULL) can be used to pass | |
2822 | * private data to this instance of the filter. The filter function | |
2823 | * can recover the SV using the FILTER_DATA macro and use it to | |
2824 | * store private buffers and state information. | |
2825 | * | |
2826 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 2827 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 2828 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
2829 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
2830 | * private use must be set using malloc'd pointers. | |
2831 | */ | |
16d20bd9 AD |
2832 | |
2833 | SV * | |
864dbfa3 | 2834 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 2835 | { |
97aff369 | 2836 | dVAR; |
f4c556ac | 2837 | if (!funcp) |
a0714e2c | 2838 | return NULL; |
f4c556ac | 2839 | |
5486870f DM |
2840 | if (!PL_parser) |
2841 | return NULL; | |
2842 | ||
3280af22 NIS |
2843 | if (!PL_rsfp_filters) |
2844 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 2845 | if (!datasv) |
561b68a9 | 2846 | datasv = newSV(0); |
862a34c6 | 2847 | SvUPGRADE(datasv, SVt_PVIO); |
8141890a | 2848 | IoANY(datasv) = FPTR2DPTR(void *, funcp); /* stash funcp into spare field */ |
e0c19803 | 2849 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac | 2850 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
55662e27 JH |
2851 | FPTR2DPTR(void *, IoANY(datasv)), |
2852 | SvPV_nolen(datasv))); | |
3280af22 NIS |
2853 | av_unshift(PL_rsfp_filters, 1); |
2854 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
2855 | return(datasv); |
2856 | } | |
4e553d73 | 2857 | |
16d20bd9 AD |
2858 | |
2859 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 2860 | void |
864dbfa3 | 2861 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 2862 | { |
97aff369 | 2863 | dVAR; |
e0c19803 | 2864 | SV *datasv; |
24801a4b | 2865 | |
7918f24d NC |
2866 | PERL_ARGS_ASSERT_FILTER_DEL; |
2867 | ||
33073adb | 2868 | #ifdef DEBUGGING |
55662e27 JH |
2869 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", |
2870 | FPTR2DPTR(void*, funcp))); | |
33073adb | 2871 | #endif |
5486870f | 2872 | if (!PL_parser || !PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
2873 | return; |
2874 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 2875 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
8141890a | 2876 | if (IoANY(datasv) == FPTR2DPTR(void *, funcp)) { |
e0c19803 | 2877 | IoFLAGS(datasv) &= ~IOf_FAKE_DIRP; |
4755096e | 2878 | IoANY(datasv) = (void *)NULL; |
3280af22 | 2879 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 2880 | |
16d20bd9 AD |
2881 | return; |
2882 | } | |
2883 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 2884 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
2885 | } |
2886 | ||
2887 | ||
1de9afcd RGS |
2888 | /* Invoke the idxth filter function for the current rsfp. */ |
2889 | /* maxlen 0 = read one text line */ | |
16d20bd9 | 2890 | I32 |
864dbfa3 | 2891 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
a0d0e21e | 2892 | { |
97aff369 | 2893 | dVAR; |
16d20bd9 AD |
2894 | filter_t funcp; |
2895 | SV *datasv = NULL; | |
f482118e NC |
2896 | /* This API is bad. It should have been using unsigned int for maxlen. |
2897 | Not sure if we want to change the API, but if not we should sanity | |
2898 | check the value here. */ | |
39cd7a59 NC |
2899 | const unsigned int correct_length |
2900 | = maxlen < 0 ? | |
2901 | #ifdef PERL_MICRO | |
2902 | 0x7FFFFFFF | |
2903 | #else | |
2904 | INT_MAX | |
2905 | #endif | |
2906 | : maxlen; | |
e50aee73 | 2907 | |
7918f24d NC |
2908 | PERL_ARGS_ASSERT_FILTER_READ; |
2909 | ||
5486870f | 2910 | if (!PL_parser || !PL_rsfp_filters) |
16d20bd9 | 2911 | return -1; |
1de9afcd | 2912 | if (idx > AvFILLp(PL_rsfp_filters)) { /* Any more filters? */ |
16d20bd9 AD |
2913 | /* Provide a default input filter to make life easy. */ |
2914 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
2915 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2916 | "filter_read %d: from rsfp\n", idx)); | |
f482118e | 2917 | if (correct_length) { |
16d20bd9 AD |
2918 | /* Want a block */ |
2919 | int len ; | |
f54cb97a | 2920 | const int old_len = SvCUR(buf_sv); |
16d20bd9 AD |
2921 | |
2922 | /* ensure buf_sv is large enough */ | |
f482118e NC |
2923 | SvGROW(buf_sv, (STRLEN)(old_len + correct_length)) ; |
2924 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, | |
2925 | correct_length)) <= 0) { | |
3280af22 | 2926 | if (PerlIO_error(PL_rsfp)) |
37120919 AD |
2927 | return -1; /* error */ |
2928 | else | |
2929 | return 0 ; /* end of file */ | |
2930 | } | |
16d20bd9 AD |
2931 | SvCUR_set(buf_sv, old_len + len) ; |
2932 | } else { | |
2933 | /* Want a line */ | |
3280af22 NIS |
2934 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
2935 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
2936 | return -1; /* error */ |
2937 | else | |
2938 | return 0 ; /* end of file */ | |
2939 | } | |
16d20bd9 AD |
2940 | } |
2941 | return SvCUR(buf_sv); | |
2942 | } | |
2943 | /* Skip this filter slot if filter has been deleted */ | |
1de9afcd | 2944 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef) { |
f4c556ac GS |
2945 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2946 | "filter_read %d: skipped (filter deleted)\n", | |
2947 | idx)); | |
f482118e | 2948 | return FILTER_READ(idx+1, buf_sv, correct_length); /* recurse */ |
16d20bd9 AD |
2949 | } |
2950 | /* Get function pointer hidden within datasv */ | |
8141890a | 2951 | funcp = DPTR2FPTR(filter_t, IoANY(datasv)); |
f4c556ac GS |
2952 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2953 | "filter_read %d: via function %p (%s)\n", | |
ca0270c4 | 2954 | idx, (void*)datasv, SvPV_nolen_const(datasv))); |
16d20bd9 AD |
2955 | /* Call function. The function is expected to */ |
2956 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 2957 | /* Return: <0:error, =0:eof, >0:not eof */ |
f482118e | 2958 | return (*funcp)(aTHX_ idx, buf_sv, correct_length); |
16d20bd9 AD |
2959 | } |
2960 | ||
76e3520e | 2961 | STATIC char * |
cea2e8a9 | 2962 | S_filter_gets(pTHX_ register SV *sv, register PerlIO *fp, STRLEN append) |
16d20bd9 | 2963 | { |
97aff369 | 2964 | dVAR; |
7918f24d NC |
2965 | |
2966 | PERL_ARGS_ASSERT_FILTER_GETS; | |
2967 | ||
c39cd008 | 2968 | #ifdef PERL_CR_FILTER |
3280af22 | 2969 | if (!PL_rsfp_filters) { |
c39cd008 | 2970 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
2971 | } |
2972 | #endif | |
3280af22 | 2973 | if (PL_rsfp_filters) { |
55497cff | 2974 | if (!append) |
2975 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
2976 | if (FILTER_READ(0, sv, 0) > 0) |
2977 | return ( SvPVX(sv) ) ; | |
2978 | else | |
bd61b366 | 2979 | return NULL ; |
16d20bd9 | 2980 | } |
9d116dd7 | 2981 | else |
fd049845 | 2982 | return (sv_gets(sv, fp, append)); |
a0d0e21e LW |
2983 | } |
2984 | ||
01ec43d0 | 2985 | STATIC HV * |
9bde8eb0 | 2986 | S_find_in_my_stash(pTHX_ const char *pkgname, STRLEN len) |
def3634b | 2987 | { |
97aff369 | 2988 | dVAR; |
def3634b GS |
2989 | GV *gv; |
2990 | ||
7918f24d NC |
2991 | PERL_ARGS_ASSERT_FIND_IN_MY_STASH; |
2992 | ||
01ec43d0 | 2993 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
2994 | return PL_curstash; |
2995 | ||
2996 | if (len > 2 && | |
2997 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
90e5519e | 2998 | (gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVHV))) |
01ec43d0 GS |
2999 | { |
3000 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
3001 | } |
3002 | ||
3003 | /* use constant CLASS => 'MyClass' */ | |
c35e046a AL |
3004 | gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVCV); |
3005 | if (gv && GvCV(gv)) { | |
3006 | SV * const sv = cv_const_sv(GvCV(gv)); | |
3007 | if (sv) | |
9bde8eb0 | 3008 | pkgname = SvPV_const(sv, len); |
def3634b GS |
3009 | } |
3010 | ||
9bde8eb0 | 3011 | return gv_stashpvn(pkgname, len, 0); |
def3634b | 3012 | } |
a0d0e21e | 3013 | |
e3f73d4e RGS |
3014 | /* |
3015 | * S_readpipe_override | |
3016 | * Check whether readpipe() is overriden, and generates the appropriate | |
3017 | * optree, provided sublex_start() is called afterwards. | |
3018 | */ | |
3019 | STATIC void | |
1d51329b | 3020 | S_readpipe_override(pTHX) |
e3f73d4e RGS |
3021 | { |
3022 | GV **gvp; | |
3023 | GV *gv_readpipe = gv_fetchpvs("readpipe", GV_NOTQUAL, SVt_PVCV); | |
6154021b | 3024 | pl_yylval.ival = OP_BACKTICK; |
e3f73d4e RGS |
3025 | if ((gv_readpipe |
3026 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe)) | |
3027 | || | |
3028 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readpipe", FALSE)) | |
d5e716f5 | 3029 | && (gv_readpipe = *gvp) && isGV_with_GP(gv_readpipe) |
e3f73d4e RGS |
3030 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe))) |
3031 | { | |
3032 | PL_lex_op = (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
3033 | append_elem(OP_LIST, | |
3034 | newSVOP(OP_CONST, 0, &PL_sv_undef), /* value will be read later */ | |
3035 | newCVREF(0, newGVOP(OP_GV, 0, gv_readpipe)))); | |
3036 | } | |
e3f73d4e RGS |
3037 | } |
3038 | ||
5db06880 NC |
3039 | #ifdef PERL_MAD |
3040 | /* | |
3041 | * Perl_madlex | |
3042 | * The intent of this yylex wrapper is to minimize the changes to the | |
3043 | * tokener when we aren't interested in collecting madprops. It remains | |
3044 | * to be seen how successful this strategy will be... | |
3045 | */ | |
3046 | ||
3047 | int | |
3048 | Perl_madlex(pTHX) | |
3049 | { | |
3050 | int optype; | |
3051 | char *s = PL_bufptr; | |
3052 | ||
cd81e915 NC |
3053 | /* make sure PL_thiswhite is initialized */ |
3054 | PL_thiswhite = 0; | |
3055 | PL_thismad = 0; | |
5db06880 | 3056 | |
cd81e915 | 3057 | /* just do what yylex would do on pending identifier; leave PL_thiswhite alone */ |
5db06880 NC |
3058 | if (PL_pending_ident) |
3059 | return S_pending_ident(aTHX); | |
3060 | ||
3061 | /* previous token ate up our whitespace? */ | |
cd81e915 NC |
3062 | if (!PL_lasttoke && PL_nextwhite) { |
3063 | PL_thiswhite = PL_nextwhite; | |
3064 | PL_nextwhite = 0; | |
5db06880 NC |
3065 | } |
3066 | ||
3067 | /* isolate the token, and figure out where it is without whitespace */ | |
cd81e915 NC |
3068 | PL_realtokenstart = -1; |
3069 | PL_thistoken = 0; | |
5db06880 NC |
3070 | optype = yylex(); |
3071 | s = PL_bufptr; | |
cd81e915 | 3072 | assert(PL_curforce < 0); |
5db06880 | 3073 | |
cd81e915 NC |
3074 | if (!PL_thismad || PL_thismad->mad_key == '^') { /* not forced already? */ |
3075 | if (!PL_thistoken) { | |
3076 | if (PL_realtokenstart < 0 || !CopLINE(PL_curcop)) | |
6b29d1f5 | 3077 | PL_thistoken = newSVpvs(""); |
5db06880 | 3078 | else { |
c35e046a | 3079 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 | 3080 | PL_thistoken = newSVpvn(tstart, s - tstart); |
5db06880 NC |
3081 | } |
3082 | } | |
cd81e915 NC |
3083 | if (PL_thismad) /* install head */ |
3084 | CURMAD('X', PL_thistoken); | |
5db06880 NC |
3085 | } |
3086 | ||
3087 | /* last whitespace of a sublex? */ | |
cd81e915 NC |
3088 | if (optype == ')' && PL_endwhite) { |
3089 | CURMAD('X', PL_endwhite); | |
5db06880 NC |
3090 | } |
3091 | ||
cd81e915 | 3092 | if (!PL_thismad) { |
5db06880 NC |
3093 | |
3094 | /* if no whitespace and we're at EOF, bail. Otherwise fake EOF below. */ | |
cd81e915 NC |
3095 | if (!PL_thiswhite && !PL_endwhite && !optype) { |
3096 | sv_free(PL_thistoken); | |
3097 | PL_thistoken = 0; | |
5db06880 NC |
3098 | return 0; |
3099 | } | |
3100 | ||
3101 | /* put off final whitespace till peg */ | |
3102 | if (optype == ';' && !PL_rsfp) { | |
cd81e915 NC |
3103 | PL_nextwhite = PL_thiswhite; |
3104 | PL_thiswhite = 0; | |
5db06880 | 3105 | } |
cd81e915 NC |
3106 | else if (PL_thisopen) { |
3107 | CURMAD('q', PL_thisopen); | |
3108 | if (PL_thistoken) | |
3109 | sv_free(PL_thistoken); | |
3110 | PL_thistoken = 0; | |
5db06880 NC |
3111 | } |
3112 | else { | |
3113 | /* Store actual token text as madprop X */ | |
cd81e915 | 3114 | CURMAD('X', PL_thistoken); |
5db06880 NC |
3115 | } |
3116 | ||
cd81e915 | 3117 | if (PL_thiswhite) { |
5db06880 | 3118 | /* add preceding whitespace as madprop _ */ |
cd81e915 | 3119 | CURMAD('_', PL_thiswhite); |
5db06880 NC |
3120 | } |
3121 | ||
cd81e915 | 3122 | if (PL_thisstuff) { |
5db06880 | 3123 | /* add quoted material as madprop = */ |
cd81e915 | 3124 | CURMAD('=', PL_thisstuff); |
5db06880 NC |
3125 | } |
3126 | ||
cd81e915 | 3127 | if (PL_thisclose) { |
5db06880 | 3128 | /* add terminating quote as madprop Q */ |
cd81e915 | 3129 | CURMAD('Q', PL_thisclose); |
5db06880 NC |
3130 | } |
3131 | } | |
3132 | ||
3133 | /* special processing based on optype */ | |
3134 | ||
3135 | switch (optype) { | |
3136 | ||
3137 | /* opval doesn't need a TOKEN since it can already store mp */ | |
3138 | case WORD: | |
3139 | case METHOD: | |
3140 | case FUNCMETH: | |
3141 | case THING: | |
3142 | case PMFUNC: | |
3143 | case PRIVATEREF: | |
3144 | case FUNC0SUB: | |
3145 | case UNIOPSUB: | |
3146 | case LSTOPSUB: | |
6154021b RGS |
3147 | if (pl_yylval.opval) |
3148 | append_madprops(PL_thismad, pl_yylval.opval, 0); | |
cd81e915 | 3149 | PL_thismad = 0; |
5db06880 NC |
3150 | return optype; |
3151 | ||
3152 | /* fake EOF */ | |
3153 | case 0: | |
3154 | optype = PEG; | |
cd81e915 NC |
3155 | if (PL_endwhite) { |
3156 | addmad(newMADsv('p', PL_endwhite), &PL_thismad, 0); | |
3157 | PL_endwhite = 0; | |
5db06880 NC |
3158 | } |
3159 | break; | |
3160 | ||
3161 | case ']': | |
3162 | case '}': | |
cd81e915 | 3163 | if (PL_faketokens) |
5db06880 NC |
3164 | break; |
3165 | /* remember any fake bracket that lexer is about to discard */ | |
3166 | if (PL_lex_brackets == 1 && | |
3167 | ((expectation)PL_lex_brackstack[0] & XFAKEBRACK)) | |
3168 | { | |
3169 | s = PL_bufptr; | |
3170 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
3171 | s++; | |
3172 | if (*s == '}') { | |
cd81e915 NC |
3173 | PL_thiswhite = newSVpvn(PL_bufptr, ++s - PL_bufptr); |
3174 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3175 | PL_thiswhite = 0; | |
5db06880 NC |
3176 | PL_bufptr = s - 1; |
3177 | break; /* don't bother looking for trailing comment */ | |
3178 | } | |
3179 | else | |
3180 | s = PL_bufptr; | |
3181 | } | |
3182 | if (optype == ']') | |
3183 | break; | |
3184 | /* FALLTHROUGH */ | |
3185 | ||
3186 | /* attach a trailing comment to its statement instead of next token */ | |
3187 | case ';': | |
cd81e915 | 3188 | if (PL_faketokens) |
5db06880 NC |
3189 | break; |
3190 | if (PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == optype) { | |
3191 | s = PL_bufptr; | |
3192 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
3193 | s++; | |
3194 | if (*s == '\n' || *s == '#') { | |
3195 | while (s < PL_bufend && *s != '\n') | |
3196 | s++; | |
3197 | if (s < PL_bufend) | |
3198 | s++; | |
cd81e915 NC |
3199 | PL_thiswhite = newSVpvn(PL_bufptr, s - PL_bufptr); |
3200 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3201 | PL_thiswhite = 0; | |
5db06880 NC |
3202 | PL_bufptr = s; |
3203 | } | |
3204 | } | |
3205 | break; | |
3206 | ||
3207 | /* pval */ | |
3208 | case LABEL: | |
3209 | break; | |
3210 | ||
3211 | /* ival */ | |
3212 | default: | |
3213 | break; | |
3214 | ||
3215 | } | |
3216 | ||
3217 | /* Create new token struct. Note: opvals return early above. */ | |
6154021b | 3218 | pl_yylval.tkval = newTOKEN(optype, pl_yylval, PL_thismad); |
cd81e915 | 3219 | PL_thismad = 0; |
5db06880 NC |
3220 | return optype; |
3221 | } | |
3222 | #endif | |
3223 | ||
468aa647 | 3224 | STATIC char * |
cc6ed77d | 3225 | S_tokenize_use(pTHX_ int is_use, char *s) { |
97aff369 | 3226 | dVAR; |
7918f24d NC |
3227 | |
3228 | PERL_ARGS_ASSERT_TOKENIZE_USE; | |
3229 | ||
468aa647 RGS |
3230 | if (PL_expect != XSTATE) |
3231 | yyerror(Perl_form(aTHX_ "\"%s\" not allowed in expression", | |
3232 | is_use ? "use" : "no")); | |
29595ff2 | 3233 | s = SKIPSPACE1(s); |
468aa647 RGS |
3234 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { |
3235 | s = force_version(s, TRUE); | |
29595ff2 | 3236 | if (*s == ';' || (s = SKIPSPACE1(s), *s == ';')) { |
cd81e915 | 3237 | start_force(PL_curforce); |
9ded7720 | 3238 | NEXTVAL_NEXTTOKE.opval = NULL; |
468aa647 RGS |
3239 | force_next(WORD); |
3240 | } | |
3241 | else if (*s == 'v') { | |
3242 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3243 | s = force_version(s, FALSE); | |
3244 | } | |
3245 | } | |
3246 | else { | |
3247 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3248 | s = force_version(s, FALSE); | |
3249 | } | |
6154021b | 3250 | pl_yylval.ival = is_use; |
468aa647 RGS |
3251 | return s; |
3252 | } | |
748a9306 | 3253 | #ifdef DEBUGGING |
27da23d5 | 3254 | static const char* const exp_name[] = |
09bef843 | 3255 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
27308ded | 3256 | "ATTRTERM", "TERMBLOCK", "TERMORDORDOR" |
09bef843 | 3257 | }; |
748a9306 | 3258 | #endif |
463ee0b2 | 3259 | |
02aa26ce NT |
3260 | /* |
3261 | yylex | |
3262 | ||
3263 | Works out what to call the token just pulled out of the input | |
3264 | stream. The yacc parser takes care of taking the ops we return and | |
3265 | stitching them into a tree. | |
3266 | ||
3267 | Returns: | |
3268 | PRIVATEREF | |
3269 | ||
3270 | Structure: | |
3271 | if read an identifier | |
3272 | if we're in a my declaration | |
3273 | croak if they tried to say my($foo::bar) | |
3274 | build the ops for a my() declaration | |
3275 | if it's an access to a my() variable | |
3276 | are we in a sort block? | |
3277 | croak if my($a); $a <=> $b | |
3278 | build ops for access to a my() variable | |
3279 | if in a dq string, and they've said @foo and we can't find @foo | |
3280 | croak | |
3281 | build ops for a bareword | |
3282 | if we already built the token before, use it. | |
3283 | */ | |
3284 | ||
20141f0e | 3285 | |
dba4d153 JH |
3286 | #ifdef __SC__ |
3287 | #pragma segment Perl_yylex | |
3288 | #endif | |
dba4d153 | 3289 | int |
dba4d153 | 3290 | Perl_yylex(pTHX) |
20141f0e | 3291 | { |
97aff369 | 3292 | dVAR; |
3afc138a | 3293 | register char *s = PL_bufptr; |
378cc40b | 3294 | register char *d; |
463ee0b2 | 3295 | STRLEN len; |
aa7440fb | 3296 | bool bof = FALSE; |
a687059c | 3297 | |
10edeb5d JH |
3298 | /* orig_keyword, gvp, and gv are initialized here because |
3299 | * jump to the label just_a_word_zero can bypass their | |
3300 | * initialization later. */ | |
3301 | I32 orig_keyword = 0; | |
3302 | GV *gv = NULL; | |
3303 | GV **gvp = NULL; | |
3304 | ||
bbf60fe6 | 3305 | DEBUG_T( { |
396482e1 | 3306 | SV* tmp = newSVpvs(""); |
b6007c36 DM |
3307 | PerlIO_printf(Perl_debug_log, "### %"IVdf":LEX_%s/X%s %s\n", |
3308 | (IV)CopLINE(PL_curcop), | |
3309 | lex_state_names[PL_lex_state], | |
3310 | exp_name[PL_expect], | |
3311 | pv_display(tmp, s, strlen(s), 0, 60)); | |
3312 | SvREFCNT_dec(tmp); | |
bbf60fe6 | 3313 | } ); |
02aa26ce | 3314 | /* check if there's an identifier for us to look at */ |
ba979b31 | 3315 | if (PL_pending_ident) |
bbf60fe6 | 3316 | return REPORT(S_pending_ident(aTHX)); |
bbce6d69 | 3317 | |
02aa26ce NT |
3318 | /* no identifier pending identification */ |
3319 | ||
3280af22 | 3320 | switch (PL_lex_state) { |
79072805 LW |
3321 | #ifdef COMMENTARY |
3322 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
3323 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
3324 | break; | |
3325 | #endif | |
3326 | ||
09bef843 | 3327 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 3328 | case LEX_KNOWNEXT: |
5db06880 NC |
3329 | #ifdef PERL_MAD |
3330 | PL_lasttoke--; | |
6154021b | 3331 | pl_yylval = PL_nexttoke[PL_lasttoke].next_val; |
5db06880 | 3332 | if (PL_madskills) { |
cd81e915 | 3333 | PL_thismad = PL_nexttoke[PL_lasttoke].next_mad; |
5db06880 | 3334 | PL_nexttoke[PL_lasttoke].next_mad = 0; |
cd81e915 NC |
3335 | if (PL_thismad && PL_thismad->mad_key == '_') { |
3336 | PL_thiswhite = (SV*)PL_thismad->mad_val; | |
3337 | PL_thismad->mad_val = 0; | |
3338 | mad_free(PL_thismad); | |
3339 | PL_thismad = 0; | |
5db06880 NC |
3340 | } |
3341 | } | |
3342 | if (!PL_lasttoke) { | |
3343 | PL_lex_state = PL_lex_defer; | |
3344 | PL_expect = PL_lex_expect; | |
3345 | PL_lex_defer = LEX_NORMAL; | |
3346 | if (!PL_nexttoke[PL_lasttoke].next_type) | |
3347 | return yylex(); | |
3348 | } | |
3349 | #else | |
3280af22 | 3350 | PL_nexttoke--; |
6154021b | 3351 | pl_yylval = PL_nextval[PL_nexttoke]; |
3280af22 NIS |
3352 | if (!PL_nexttoke) { |
3353 | PL_lex_state = PL_lex_defer; | |
3354 | PL_expect = PL_lex_expect; | |
3355 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 3356 | } |
5db06880 NC |
3357 | #endif |
3358 | #ifdef PERL_MAD | |
3359 | /* FIXME - can these be merged? */ | |
3360 | return(PL_nexttoke[PL_lasttoke].next_type); | |
3361 | #else | |
bbf60fe6 | 3362 | return REPORT(PL_nexttype[PL_nexttoke]); |
5db06880 | 3363 | #endif |
79072805 | 3364 | |
02aa26ce | 3365 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 3366 | when we get here, PL_bufptr is at the \ |
02aa26ce | 3367 | */ |
79072805 LW |
3368 | case LEX_INTERPCASEMOD: |
3369 | #ifdef DEBUGGING | |
3280af22 | 3370 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 3371 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 3372 | #endif |
02aa26ce | 3373 | /* handle \E or end of string */ |
3280af22 | 3374 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
02aa26ce | 3375 | /* if at a \E */ |
3280af22 | 3376 | if (PL_lex_casemods) { |
f54cb97a | 3377 | const char oldmod = PL_lex_casestack[--PL_lex_casemods]; |
3280af22 | 3378 | PL_lex_casestack[PL_lex_casemods] = '\0'; |
02aa26ce | 3379 | |
3792a11b NC |
3380 | if (PL_bufptr != PL_bufend |
3381 | && (oldmod == 'L' || oldmod == 'U' || oldmod == 'Q')) { | |
3280af22 NIS |
3382 | PL_bufptr += 2; |
3383 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3384 | #ifdef PERL_MAD |
3385 | if (PL_madskills) | |
6b29d1f5 | 3386 | PL_thistoken = newSVpvs("\\E"); |
5db06880 | 3387 | #endif |
a0d0e21e | 3388 | } |
bbf60fe6 | 3389 | return REPORT(')'); |
79072805 | 3390 | } |
5db06880 NC |
3391 | #ifdef PERL_MAD |
3392 | while (PL_bufptr != PL_bufend && | |
3393 | PL_bufptr[0] == '\\' && PL_bufptr[1] == 'E') { | |
cd81e915 | 3394 | if (!PL_thiswhite) |
6b29d1f5 | 3395 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3396 | sv_catpvn(PL_thiswhite, PL_bufptr, 2); |
5db06880 NC |
3397 | PL_bufptr += 2; |
3398 | } | |
3399 | #else | |
3280af22 NIS |
3400 | if (PL_bufptr != PL_bufend) |
3401 | PL_bufptr += 2; | |
5db06880 | 3402 | #endif |
3280af22 | 3403 | PL_lex_state = LEX_INTERPCONCAT; |
cea2e8a9 | 3404 | return yylex(); |
79072805 LW |
3405 | } |
3406 | else { | |
607df283 | 3407 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3408 | "### Saw case modifier\n"); }); |
3280af22 | 3409 | s = PL_bufptr + 1; |
6e909404 | 3410 | if (s[1] == '\\' && s[2] == 'E') { |
5db06880 | 3411 | #ifdef PERL_MAD |
cd81e915 | 3412 | if (!PL_thiswhite) |
6b29d1f5 | 3413 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3414 | sv_catpvn(PL_thiswhite, PL_bufptr, 4); |
5db06880 | 3415 | #endif |
89122651 | 3416 | PL_bufptr = s + 3; |
6e909404 JH |
3417 | PL_lex_state = LEX_INTERPCONCAT; |
3418 | return yylex(); | |
a0d0e21e | 3419 | } |
6e909404 | 3420 | else { |
90771dc0 | 3421 | I32 tmp; |
5db06880 NC |
3422 | if (!PL_madskills) /* when just compiling don't need correct */ |
3423 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
3424 | tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */ | |
3792a11b | 3425 | if ((*s == 'L' || *s == 'U') && |
6e909404 JH |
3426 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) { |
3427 | PL_lex_casestack[--PL_lex_casemods] = '\0'; | |
bbf60fe6 | 3428 | return REPORT(')'); |
6e909404 JH |
3429 | } |
3430 | if (PL_lex_casemods > 10) | |
3431 | Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
3432 | PL_lex_casestack[PL_lex_casemods++] = *s; | |
3433 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
3434 | PL_lex_state = LEX_INTERPCONCAT; | |
cd81e915 | 3435 | start_force(PL_curforce); |
9ded7720 | 3436 | NEXTVAL_NEXTTOKE.ival = 0; |
6e909404 | 3437 | force_next('('); |
cd81e915 | 3438 | start_force(PL_curforce); |
6e909404 | 3439 | if (*s == 'l') |
9ded7720 | 3440 | NEXTVAL_NEXTTOKE.ival = OP_LCFIRST; |
6e909404 | 3441 | else if (*s == 'u') |
9ded7720 | 3442 | NEXTVAL_NEXTTOKE.ival = OP_UCFIRST; |
6e909404 | 3443 | else if (*s == 'L') |
9ded7720 | 3444 | NEXTVAL_NEXTTOKE.ival = OP_LC; |
6e909404 | 3445 | else if (*s == 'U') |
9ded7720 | 3446 | NEXTVAL_NEXTTOKE.ival = OP_UC; |
6e909404 | 3447 | else if (*s == 'Q') |
9ded7720 | 3448 | NEXTVAL_NEXTTOKE.ival = OP_QUOTEMETA; |
6e909404 JH |
3449 | else |
3450 | Perl_croak(aTHX_ "panic: yylex"); | |
5db06880 | 3451 | if (PL_madskills) { |
a5849ce5 NC |
3452 | SV* const tmpsv = newSVpvs("\\ "); |
3453 | /* replace the space with the character we want to escape | |
3454 | */ | |
3455 | SvPVX(tmpsv)[1] = *s; | |
5db06880 NC |
3456 | curmad('_', tmpsv); |
3457 | } | |
6e909404 | 3458 | PL_bufptr = s + 1; |
a0d0e21e | 3459 | } |
79072805 | 3460 | force_next(FUNC); |
3280af22 NIS |
3461 | if (PL_lex_starts) { |
3462 | s = PL_bufptr; | |
3463 | PL_lex_starts = 0; | |
5db06880 NC |
3464 | #ifdef PERL_MAD |
3465 | if (PL_madskills) { | |
cd81e915 NC |
3466 | if (PL_thistoken) |
3467 | sv_free(PL_thistoken); | |
6b29d1f5 | 3468 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3469 | } |
3470 | #endif | |
131b3ad0 DM |
3471 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3472 | if (PL_lex_casemods == 1 && PL_lex_inpat) | |
3473 | OPERATOR(','); | |
3474 | else | |
3475 | Aop(OP_CONCAT); | |
79072805 LW |
3476 | } |
3477 | else | |
cea2e8a9 | 3478 | return yylex(); |
79072805 LW |
3479 | } |
3480 | ||
55497cff | 3481 | case LEX_INTERPPUSH: |
bbf60fe6 | 3482 | return REPORT(sublex_push()); |
55497cff | 3483 | |
79072805 | 3484 | case LEX_INTERPSTART: |
3280af22 | 3485 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3486 | return REPORT(sublex_done()); |
607df283 | 3487 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3488 | "### Interpolated variable\n"); }); |
3280af22 NIS |
3489 | PL_expect = XTERM; |
3490 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
3491 | PL_lex_state = LEX_INTERPNORMAL; | |
3492 | if (PL_lex_dojoin) { | |
cd81e915 | 3493 | start_force(PL_curforce); |
9ded7720 | 3494 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3495 | force_next(','); |
cd81e915 | 3496 | start_force(PL_curforce); |
a0d0e21e | 3497 | force_ident("\"", '$'); |
cd81e915 | 3498 | start_force(PL_curforce); |
9ded7720 | 3499 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3500 | force_next('$'); |
cd81e915 | 3501 | start_force(PL_curforce); |
9ded7720 | 3502 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3503 | force_next('('); |
cd81e915 | 3504 | start_force(PL_curforce); |
9ded7720 | 3505 | NEXTVAL_NEXTTOKE.ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
3506 | force_next(FUNC); |
3507 | } | |
3280af22 NIS |
3508 | if (PL_lex_starts++) { |
3509 | s = PL_bufptr; | |
5db06880 NC |
3510 | #ifdef PERL_MAD |
3511 | if (PL_madskills) { | |
cd81e915 NC |
3512 | if (PL_thistoken) |
3513 | sv_free(PL_thistoken); | |
6b29d1f5 | 3514 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3515 | } |
3516 | #endif | |
131b3ad0 DM |
3517 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3518 | if (!PL_lex_casemods && PL_lex_inpat) | |
3519 | OPERATOR(','); | |
3520 | else | |
3521 | Aop(OP_CONCAT); | |
79072805 | 3522 | } |
cea2e8a9 | 3523 | return yylex(); |
79072805 LW |
3524 | |
3525 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
3526 | if (intuit_more(PL_bufptr)) { |
3527 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
3528 | break; |
3529 | } | |
3530 | /* FALL THROUGH */ | |
3531 | ||
3532 | case LEX_INTERPEND: | |
3280af22 NIS |
3533 | if (PL_lex_dojoin) { |
3534 | PL_lex_dojoin = FALSE; | |
3535 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3536 | #ifdef PERL_MAD |
3537 | if (PL_madskills) { | |
cd81e915 NC |
3538 | if (PL_thistoken) |
3539 | sv_free(PL_thistoken); | |
6b29d1f5 | 3540 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3541 | } |
3542 | #endif | |
bbf60fe6 | 3543 | return REPORT(')'); |
79072805 | 3544 | } |
43a16006 | 3545 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 3546 | && SvEVALED(PL_lex_repl)) |
43a16006 | 3547 | { |
e9fa98b2 | 3548 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 3549 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
a0714e2c | 3550 | PL_lex_repl = NULL; |
e9fa98b2 | 3551 | } |
79072805 LW |
3552 | /* FALLTHROUGH */ |
3553 | case LEX_INTERPCONCAT: | |
3554 | #ifdef DEBUGGING | |
3280af22 | 3555 | if (PL_lex_brackets) |
cea2e8a9 | 3556 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 3557 | #endif |
3280af22 | 3558 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3559 | return REPORT(sublex_done()); |
79072805 | 3560 | |
3280af22 NIS |
3561 | if (SvIVX(PL_linestr) == '\'') { |
3562 | SV *sv = newSVsv(PL_linestr); | |
3563 | if (!PL_lex_inpat) | |
76e3520e | 3564 | sv = tokeq(sv); |
3280af22 | 3565 | else if ( PL_hints & HINT_NEW_RE ) |
eb0d8d16 | 3566 | sv = new_constant(NULL, 0, "qr", sv, sv, "q", 1); |
6154021b | 3567 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 3568 | s = PL_bufend; |
79072805 LW |
3569 | } |
3570 | else { | |
3280af22 | 3571 | s = scan_const(PL_bufptr); |
79072805 | 3572 | if (*s == '\\') |
3280af22 | 3573 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 3574 | else |
3280af22 | 3575 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
3576 | } |
3577 | ||
3280af22 | 3578 | if (s != PL_bufptr) { |
cd81e915 | 3579 | start_force(PL_curforce); |
5db06880 NC |
3580 | if (PL_madskills) { |
3581 | curmad('X', newSVpvn(PL_bufptr,s-PL_bufptr)); | |
3582 | } | |
6154021b | 3583 | NEXTVAL_NEXTTOKE = pl_yylval; |
3280af22 | 3584 | PL_expect = XTERM; |
79072805 | 3585 | force_next(THING); |
131b3ad0 | 3586 | if (PL_lex_starts++) { |
5db06880 NC |
3587 | #ifdef PERL_MAD |
3588 | if (PL_madskills) { | |
cd81e915 NC |
3589 | if (PL_thistoken) |
3590 | sv_free(PL_thistoken); | |
6b29d1f5 | 3591 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3592 | } |
3593 | #endif | |
131b3ad0 DM |
3594 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3595 | if (!PL_lex_casemods && PL_lex_inpat) | |
3596 | OPERATOR(','); | |
3597 | else | |
3598 | Aop(OP_CONCAT); | |
3599 | } | |
79072805 | 3600 | else { |
3280af22 | 3601 | PL_bufptr = s; |
cea2e8a9 | 3602 | return yylex(); |
79072805 LW |
3603 | } |
3604 | } | |
3605 | ||
cea2e8a9 | 3606 | return yylex(); |
a0d0e21e | 3607 | case LEX_FORMLINE: |
3280af22 NIS |
3608 | PL_lex_state = LEX_NORMAL; |
3609 | s = scan_formline(PL_bufptr); | |
3610 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
3611 | goto rightbracket; |
3612 | OPERATOR(';'); | |
79072805 LW |
3613 | } |
3614 | ||
3280af22 NIS |
3615 | s = PL_bufptr; |
3616 | PL_oldoldbufptr = PL_oldbufptr; | |
3617 | PL_oldbufptr = s; | |
463ee0b2 LW |
3618 | |
3619 | retry: | |
5db06880 | 3620 | #ifdef PERL_MAD |
cd81e915 NC |
3621 | if (PL_thistoken) { |
3622 | sv_free(PL_thistoken); | |
3623 | PL_thistoken = 0; | |
5db06880 | 3624 | } |
cd81e915 | 3625 | PL_realtokenstart = s - SvPVX(PL_linestr); /* assume but undo on ws */ |
5db06880 | 3626 | #endif |
378cc40b LW |
3627 | switch (*s) { |
3628 | default: | |
7e2040f0 | 3629 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 3630 | goto keylookup; |
987a03fc | 3631 | len = UTF ? Perl_utf8_length(aTHX_ (U8 *) PL_linestart, (U8 *) s) : (STRLEN) (s - PL_linestart); |
356c7adf | 3632 | Perl_croak(aTHX_ "Unrecognized character \\x%02X in column %d", *s & 255, (int) len + 1); |
e929a76b LW |
3633 | case 4: |
3634 | case 26: | |
3635 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 3636 | case 0: |
5db06880 NC |
3637 | #ifdef PERL_MAD |
3638 | if (PL_madskills) | |
cd81e915 | 3639 | PL_faketokens = 0; |
5db06880 | 3640 | #endif |
3280af22 NIS |
3641 | if (!PL_rsfp) { |
3642 | PL_last_uni = 0; | |
3643 | PL_last_lop = 0; | |
c5ee2135 | 3644 | if (PL_lex_brackets) { |
10edeb5d JH |
3645 | yyerror((const char *) |
3646 | (PL_lex_formbrack | |
3647 | ? "Format not terminated" | |
3648 | : "Missing right curly or square bracket")); | |
c5ee2135 | 3649 | } |
4e553d73 | 3650 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 3651 | "### Tokener got EOF\n"); |
5f80b19c | 3652 | } ); |
79072805 | 3653 | TOKEN(0); |
463ee0b2 | 3654 | } |
3280af22 | 3655 | if (s++ < PL_bufend) |
a687059c | 3656 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
3657 | PL_last_uni = 0; |
3658 | PL_last_lop = 0; | |
3659 | if (!PL_in_eval && !PL_preambled) { | |
3660 | PL_preambled = TRUE; | |
5db06880 NC |
3661 | #ifdef PERL_MAD |
3662 | if (PL_madskills) | |
cd81e915 | 3663 | PL_faketokens = 1; |
5db06880 | 3664 | #endif |
5ab7ff98 NC |
3665 | if (PL_perldb) { |
3666 | /* Generate a string of Perl code to load the debugger. | |
3667 | * If PERL5DB is set, it will return the contents of that, | |
3668 | * otherwise a compile-time require of perl5db.pl. */ | |
3669 | ||
3670 | const char * const pdb = PerlEnv_getenv("PERL5DB"); | |
3671 | ||
3672 | if (pdb) { | |
3673 | sv_setpv(PL_linestr, pdb); | |
3674 | sv_catpvs(PL_linestr,";"); | |
3675 | } else { | |
3676 | SETERRNO(0,SS_NORMAL); | |
3677 | sv_setpvs(PL_linestr, "BEGIN { require 'perl5db.pl' };"); | |
3678 | } | |
3679 | } else | |
3680 | sv_setpvs(PL_linestr,""); | |
c62eb204 NC |
3681 | if (PL_preambleav) { |
3682 | SV **svp = AvARRAY(PL_preambleav); | |
3683 | SV **const end = svp + AvFILLp(PL_preambleav); | |
3684 | while(svp <= end) { | |
3685 | sv_catsv(PL_linestr, *svp); | |
3686 | ++svp; | |
396482e1 | 3687 | sv_catpvs(PL_linestr, ";"); |
91b7def8 | 3688 | } |
3280af22 NIS |
3689 | sv_free((SV*)PL_preambleav); |
3690 | PL_preambleav = NULL; | |
91b7def8 | 3691 | } |
9f639728 FR |
3692 | if (PL_minus_E) |
3693 | sv_catpvs(PL_linestr, | |
3694 | "use feature ':5." STRINGIFY(PERL_VERSION) "';"); | |
3280af22 | 3695 | if (PL_minus_n || PL_minus_p) { |
396482e1 | 3696 | sv_catpvs(PL_linestr, "LINE: while (<>) {"); |
3280af22 | 3697 | if (PL_minus_l) |
396482e1 | 3698 | sv_catpvs(PL_linestr,"chomp;"); |
3280af22 | 3699 | if (PL_minus_a) { |
3280af22 | 3700 | if (PL_minus_F) { |
3792a11b NC |
3701 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
3702 | || *PL_splitstr == '"') | |
3280af22 | 3703 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 3704 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 3705 | else { |
c8ef6a4b NC |
3706 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
3707 | bytes can be used as quoting characters. :-) */ | |
dd374669 | 3708 | const char *splits = PL_splitstr; |
91d456ae | 3709 | sv_catpvs(PL_linestr, "our @F=split(q\0"); |
48c4c863 NC |
3710 | do { |
3711 | /* Need to \ \s */ | |
dd374669 AL |
3712 | if (*splits == '\\') |
3713 | sv_catpvn(PL_linestr, splits, 1); | |
3714 | sv_catpvn(PL_linestr, splits, 1); | |
3715 | } while (*splits++); | |
48c4c863 NC |
3716 | /* This loop will embed the trailing NUL of |
3717 | PL_linestr as the last thing it does before | |
3718 | terminating. */ | |
396482e1 | 3719 | sv_catpvs(PL_linestr, ");"); |
54310121 | 3720 | } |
2304df62 AD |
3721 | } |
3722 | else | |
396482e1 | 3723 | sv_catpvs(PL_linestr,"our @F=split(' ');"); |
2304df62 | 3724 | } |
79072805 | 3725 | } |
396482e1 | 3726 | sv_catpvs(PL_linestr, "\n"); |
3280af22 NIS |
3727 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3728 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3729 | PL_last_lop = PL_last_uni = NULL; |
80a702cd | 3730 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 3731 | update_debugger_info(PL_linestr, NULL, 0); |
79072805 | 3732 | goto retry; |
a687059c | 3733 | } |
e929a76b | 3734 | do { |
aa7440fb | 3735 | bof = PL_rsfp ? TRUE : FALSE; |
bd61b366 | 3736 | if ((s = filter_gets(PL_linestr, PL_rsfp, 0)) == NULL) { |
7e28d3af | 3737 | fake_eof: |
5db06880 | 3738 | #ifdef PERL_MAD |
cd81e915 | 3739 | PL_realtokenstart = -1; |
5db06880 | 3740 | #endif |
7e28d3af | 3741 | if (PL_rsfp) { |
4c84d7f2 | 3742 | if ((PerlIO *)PL_rsfp == PerlIO_stdin()) |
7e28d3af JH |
3743 | PerlIO_clearerr(PL_rsfp); |
3744 | else | |
3745 | (void)PerlIO_close(PL_rsfp); | |
4608196e | 3746 | PL_rsfp = NULL; |
7e28d3af JH |
3747 | PL_doextract = FALSE; |
3748 | } | |
3749 | if (!PL_in_eval && (PL_minus_n || PL_minus_p)) { | |
5db06880 NC |
3750 | #ifdef PERL_MAD |
3751 | if (PL_madskills) | |
cd81e915 | 3752 | PL_faketokens = 1; |
5db06880 | 3753 | #endif |
49a54bbe NC |
3754 | if (PL_minus_p) |
3755 | sv_setpvs(PL_linestr, ";}continue{print;}"); | |
3756 | else | |
3757 | sv_setpvs(PL_linestr, ";}"); | |
7e28d3af JH |
3758 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3759 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3760 | PL_last_lop = PL_last_uni = NULL; |
7e28d3af JH |
3761 | PL_minus_n = PL_minus_p = 0; |
3762 | goto retry; | |
3763 | } | |
3764 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
bd61b366 | 3765 | PL_last_lop = PL_last_uni = NULL; |
c69006e4 | 3766 | sv_setpvn(PL_linestr,"",0); |
7e28d3af JH |
3767 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ |
3768 | } | |
7aa207d6 JH |
3769 | /* If it looks like the start of a BOM or raw UTF-16, |
3770 | * check if it in fact is. */ | |
3771 | else if (bof && | |
3772 | (*s == 0 || | |
3773 | *(U8*)s == 0xEF || | |
3774 | *(U8*)s >= 0xFE || | |
3775 | s[1] == 0)) { | |
226017aa | 3776 | #ifdef PERLIO_IS_STDIO |
e3f494f1 JH |
3777 | # ifdef __GNU_LIBRARY__ |
3778 | # if __GNU_LIBRARY__ == 1 /* Linux glibc5 */ | |
226017aa DD |
3779 | # define FTELL_FOR_PIPE_IS_BROKEN |
3780 | # endif | |
e3f494f1 JH |
3781 | # else |
3782 | # ifdef __GLIBC__ | |
3783 | # if __GLIBC__ == 1 /* maybe some glibc5 release had it like this? */ | |
3784 | # define FTELL_FOR_PIPE_IS_BROKEN | |
3785 | # endif | |
3786 | # endif | |
226017aa DD |
3787 | # endif |
3788 | #endif | |
eb160463 | 3789 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
7e28d3af | 3790 | if (bof) { |
3280af22 | 3791 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 3792 | s = swallow_bom((U8*)s); |
e929a76b | 3793 | } |
378cc40b | 3794 | } |
3280af22 | 3795 | if (PL_doextract) { |
a0d0e21e | 3796 | /* Incest with pod. */ |
5db06880 NC |
3797 | #ifdef PERL_MAD |
3798 | if (PL_madskills) | |
cd81e915 | 3799 | sv_catsv(PL_thiswhite, PL_linestr); |
5db06880 | 3800 | #endif |
01a57ef7 | 3801 | if (*s == '=' && strnEQ(s, "=cut", 4) && !isALPHA(s[4])) { |
c69006e4 | 3802 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3803 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3804 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3805 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3806 | PL_doextract = FALSE; |
a0d0e21e | 3807 | } |
4e553d73 | 3808 | } |
463ee0b2 | 3809 | incline(s); |
3280af22 NIS |
3810 | } while (PL_doextract); |
3811 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
80a702cd | 3812 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 3813 | update_debugger_info(PL_linestr, NULL, 0); |
3280af22 | 3814 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 3815 | PL_last_lop = PL_last_uni = NULL; |
57843af0 | 3816 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 3817 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 3818 | s++; |
a0d0e21e | 3819 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 3820 | s++; |
5db06880 NC |
3821 | #ifdef PERL_MAD |
3822 | if (PL_madskills) | |
cd81e915 | 3823 | PL_thiswhite = newSVpvn(PL_linestart, s - PL_linestart); |
5db06880 | 3824 | #endif |
bd61b366 | 3825 | d = NULL; |
3280af22 | 3826 | if (!PL_in_eval) { |
44a8e56a | 3827 | if (*s == '#' && *(s+1) == '!') |
3828 | d = s + 2; | |
3829 | #ifdef ALTERNATE_SHEBANG | |
3830 | else { | |
bfed75c6 | 3831 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 3832 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
3833 | d = s + (sizeof(as) - 1); | |
3834 | } | |
3835 | #endif /* ALTERNATE_SHEBANG */ | |
3836 | } | |
3837 | if (d) { | |
b8378b72 | 3838 | char *ipath; |
774d564b | 3839 | char *ipathend; |
b8378b72 | 3840 | |
774d564b | 3841 | while (isSPACE(*d)) |
b8378b72 CS |
3842 | d++; |
3843 | ipath = d; | |
774d564b | 3844 | while (*d && !isSPACE(*d)) |
3845 | d++; | |
3846 | ipathend = d; | |
3847 | ||
3848 | #ifdef ARG_ZERO_IS_SCRIPT | |
3849 | if (ipathend > ipath) { | |
3850 | /* | |
3851 | * HP-UX (at least) sets argv[0] to the script name, | |
3852 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
3853 | * at least, set argv[0] to the basename of the Perl | |
3854 | * interpreter. So, having found "#!", we'll set it right. | |
3855 | */ | |
fafc274c NC |
3856 | SV * const x = GvSV(gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, |
3857 | SVt_PV)); /* $^X */ | |
774d564b | 3858 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 3859 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 3860 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 3861 | SvSETMAGIC(x); |
3862 | } | |
556c1dec JH |
3863 | else { |
3864 | STRLEN blen; | |
3865 | STRLEN llen; | |
cfd0369c | 3866 | const char *bstart = SvPV_const(CopFILESV(PL_curcop),blen); |
9d4ba2ae | 3867 | const char * const lstart = SvPV_const(x,llen); |
556c1dec JH |
3868 | if (llen < blen) { |
3869 | bstart += blen - llen; | |
3870 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
3871 | sv_setpvn(x, ipath, ipathend - ipath); | |
3872 | SvSETMAGIC(x); | |
3873 | } | |
3874 | } | |
3875 | } | |
774d564b | 3876 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 3877 | } |
774d564b | 3878 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
3879 | |
3880 | /* | |
3881 | * Look for options. | |
3882 | */ | |
748a9306 | 3883 | d = instr(s,"perl -"); |
84e30d1a | 3884 | if (!d) { |
748a9306 | 3885 | d = instr(s,"perl"); |
84e30d1a GS |
3886 | #if defined(DOSISH) |
3887 | /* avoid getting into infinite loops when shebang | |
3888 | * line contains "Perl" rather than "perl" */ | |
3889 | if (!d) { | |
3890 | for (d = ipathend-4; d >= ipath; --d) { | |
3891 | if ((*d == 'p' || *d == 'P') | |
3892 | && !ibcmp(d, "perl", 4)) | |
3893 | { | |
3894 | break; | |
3895 | } | |
3896 | } | |
3897 | if (d < ipath) | |
bd61b366 | 3898 | d = NULL; |
84e30d1a GS |
3899 | } |
3900 | #endif | |
3901 | } | |
44a8e56a | 3902 | #ifdef ALTERNATE_SHEBANG |
3903 | /* | |
3904 | * If the ALTERNATE_SHEBANG on this system starts with a | |
3905 | * character that can be part of a Perl expression, then if | |
3906 | * we see it but not "perl", we're probably looking at the | |
3907 | * start of Perl code, not a request to hand off to some | |
3908 | * other interpreter. Similarly, if "perl" is there, but | |
3909 | * not in the first 'word' of the line, we assume the line | |
3910 | * contains the start of the Perl program. | |
44a8e56a | 3911 | */ |
3912 | if (d && *s != '#') { | |
f54cb97a | 3913 | const char *c = ipath; |
44a8e56a | 3914 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
3915 | c++; | |
3916 | if (c < d) | |
bd61b366 | 3917 | d = NULL; /* "perl" not in first word; ignore */ |
44a8e56a | 3918 | else |
3919 | *s = '#'; /* Don't try to parse shebang line */ | |
3920 | } | |
774d564b | 3921 | #endif /* ALTERNATE_SHEBANG */ |
bf4acbe4 | 3922 | #ifndef MACOS_TRADITIONAL |
748a9306 | 3923 | if (!d && |
44a8e56a | 3924 | *s == '#' && |
774d564b | 3925 | ipathend > ipath && |
3280af22 | 3926 | !PL_minus_c && |
748a9306 | 3927 | !instr(s,"indir") && |
3280af22 | 3928 | instr(PL_origargv[0],"perl")) |
748a9306 | 3929 | { |
27da23d5 | 3930 | dVAR; |
9f68db38 | 3931 | char **newargv; |
9f68db38 | 3932 | |
774d564b | 3933 | *ipathend = '\0'; |
3934 | s = ipathend + 1; | |
3280af22 | 3935 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 3936 | s++; |
3280af22 | 3937 | if (s < PL_bufend) { |
a02a5408 | 3938 | Newxz(newargv,PL_origargc+3,char*); |
9f68db38 | 3939 | newargv[1] = s; |
3280af22 | 3940 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
3941 | s++; |
3942 | *s = '\0'; | |
3280af22 | 3943 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
3944 | } |
3945 | else | |
3280af22 | 3946 | newargv = PL_origargv; |
774d564b | 3947 | newargv[0] = ipath; |
b35112e7 | 3948 | PERL_FPU_PRE_EXEC |
b4748376 | 3949 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
b35112e7 | 3950 | PERL_FPU_POST_EXEC |
cea2e8a9 | 3951 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 3952 | } |
bf4acbe4 | 3953 | #endif |
748a9306 | 3954 | if (d) { |
c35e046a AL |
3955 | while (*d && !isSPACE(*d)) |
3956 | d++; | |
3957 | while (SPACE_OR_TAB(*d)) | |
3958 | d++; | |
748a9306 LW |
3959 | |
3960 | if (*d++ == '-') { | |
f54cb97a | 3961 | const bool switches_done = PL_doswitches; |
fb993905 GA |
3962 | const U32 oldpdb = PL_perldb; |
3963 | const bool oldn = PL_minus_n; | |
3964 | const bool oldp = PL_minus_p; | |
c7030b81 | 3965 | const char *d1 = d; |
fb993905 | 3966 | |
8cc95fdb | 3967 | do { |
c7030b81 NC |
3968 | if (*d1 == 'M' || *d1 == 'm' || *d1 == 'C') { |
3969 | const char * const m = d1; | |
3970 | while (*d1 && !isSPACE(*d1)) | |
3971 | d1++; | |
cea2e8a9 | 3972 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
c7030b81 | 3973 | (int)(d1 - m), m); |
8cc95fdb | 3974 | } |
c7030b81 NC |
3975 | d1 = moreswitches(d1); |
3976 | } while (d1); | |
f0b2cf55 YST |
3977 | if (PL_doswitches && !switches_done) { |
3978 | int argc = PL_origargc; | |
3979 | char **argv = PL_origargv; | |
3980 | do { | |
3981 | argc--,argv++; | |
3982 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
3983 | init_argv_symbols(argc,argv); | |
3984 | } | |
155aba94 GS |
3985 | if ((PERLDB_LINE && !oldpdb) || |
3986 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) | |
b084f20b | 3987 | /* if we have already added "LINE: while (<>) {", |
3988 | we must not do it again */ | |
748a9306 | 3989 | { |
c69006e4 | 3990 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3991 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3992 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3993 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3994 | PL_preambled = FALSE; |
84902520 | 3995 | if (PERLDB_LINE) |
3280af22 | 3996 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
3997 | goto retry; |
3998 | } | |
a0d0e21e | 3999 | } |
79072805 | 4000 | } |
9f68db38 | 4001 | } |
79072805 | 4002 | } |
3280af22 NIS |
4003 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
4004 | PL_bufptr = s; | |
4005 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 4006 | return yylex(); |
ae986130 | 4007 | } |
378cc40b | 4008 | goto retry; |
4fdae800 | 4009 | case '\r': |
6a27c188 | 4010 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 4011 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 4012 | Perl_croak(aTHX_ |
cc507455 | 4013 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 4014 | #endif |
4fdae800 | 4015 | case ' ': case '\t': case '\f': case 013: |
bf4acbe4 GS |
4016 | #ifdef MACOS_TRADITIONAL |
4017 | case '\312': | |
4018 | #endif | |
5db06880 | 4019 | #ifdef PERL_MAD |
cd81e915 | 4020 | PL_realtokenstart = -1; |
ac372eb8 RD |
4021 | if (!PL_thiswhite) |
4022 | PL_thiswhite = newSVpvs(""); | |
4023 | sv_catpvn(PL_thiswhite, s, 1); | |
5db06880 | 4024 | #endif |
ac372eb8 | 4025 | s++; |
378cc40b | 4026 | goto retry; |
378cc40b | 4027 | case '#': |
e929a76b | 4028 | case '\n': |
5db06880 | 4029 | #ifdef PERL_MAD |
cd81e915 | 4030 | PL_realtokenstart = -1; |
5db06880 | 4031 | if (PL_madskills) |
cd81e915 | 4032 | PL_faketokens = 0; |
5db06880 | 4033 | #endif |
3280af22 | 4034 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
4035 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
4036 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
4037 | CopLINE_dec(PL_curcop); | |
4038 | incline(s); | |
4039 | } | |
5db06880 NC |
4040 | if (PL_madskills && !PL_lex_formbrack && !PL_in_eval) { |
4041 | s = SKIPSPACE0(s); | |
4042 | if (!PL_in_eval || PL_rsfp) | |
4043 | incline(s); | |
4044 | } | |
4045 | else { | |
4046 | d = s; | |
4047 | while (d < PL_bufend && *d != '\n') | |
4048 | d++; | |
4049 | if (d < PL_bufend) | |
4050 | d++; | |
4051 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
4052 | Perl_croak(aTHX_ "panic: input overflow"); | |
4053 | #ifdef PERL_MAD | |
4054 | if (PL_madskills) | |
cd81e915 | 4055 | PL_thiswhite = newSVpvn(s, d - s); |
5db06880 NC |
4056 | #endif |
4057 | s = d; | |
4058 | incline(s); | |
4059 | } | |
3280af22 NIS |
4060 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
4061 | PL_bufptr = s; | |
4062 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 4063 | return yylex(); |
a687059c | 4064 | } |
378cc40b | 4065 | } |
a687059c | 4066 | else { |
5db06880 NC |
4067 | #ifdef PERL_MAD |
4068 | if (PL_madskills && CopLINE(PL_curcop) >= 1 && !PL_lex_formbrack) { | |
4069 | if (CopLINE(PL_curcop) == 1 && s[0] == '#' && s[1] == '!') { | |
cd81e915 | 4070 | PL_faketokens = 0; |
5db06880 NC |
4071 | s = SKIPSPACE0(s); |
4072 | TOKEN(PEG); /* make sure any #! line is accessible */ | |
4073 | } | |
4074 | s = SKIPSPACE0(s); | |
4075 | } | |
4076 | else { | |
4077 | /* if (PL_madskills && PL_lex_formbrack) { */ | |
4078 | d = s; | |
4079 | while (d < PL_bufend && *d != '\n') | |
4080 | d++; | |
4081 | if (d < PL_bufend) | |
4082 | d++; | |
4083 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
4084 | Perl_croak(aTHX_ "panic: input overflow"); | |
4085 | if (PL_madskills && CopLINE(PL_curcop) >= 1) { | |
cd81e915 | 4086 | if (!PL_thiswhite) |
6b29d1f5 | 4087 | PL_thiswhite = newSVpvs(""); |
5db06880 | 4088 | if (CopLINE(PL_curcop) == 1) { |
cd81e915 NC |
4089 | sv_setpvn(PL_thiswhite, "", 0); |
4090 | PL_faketokens = 0; | |
5db06880 | 4091 | } |
cd81e915 | 4092 | sv_catpvn(PL_thiswhite, s, d - s); |
5db06880 NC |
4093 | } |
4094 | s = d; | |
4095 | /* } | |
4096 | *s = '\0'; | |
4097 | PL_bufend = s; */ | |
4098 | } | |
4099 | #else | |
378cc40b | 4100 | *s = '\0'; |
3280af22 | 4101 | PL_bufend = s; |
5db06880 | 4102 | #endif |
a687059c | 4103 | } |
378cc40b LW |
4104 | goto retry; |
4105 | case '-': | |
79072805 | 4106 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 | 4107 | I32 ftst = 0; |
90771dc0 | 4108 | char tmp; |
e5edeb50 | 4109 | |
378cc40b | 4110 | s++; |
3280af22 | 4111 | PL_bufptr = s; |
748a9306 LW |
4112 | tmp = *s++; |
4113 | ||
bf4acbe4 | 4114 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
4115 | s++; |
4116 | ||
4117 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 4118 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
931e0695 | 4119 | DEBUG_T( { printbuf("### Saw unary minus before =>, forcing word %s\n", s); } ); |
748a9306 LW |
4120 | OPERATOR('-'); /* unary minus */ |
4121 | } | |
3280af22 | 4122 | PL_last_uni = PL_oldbufptr; |
748a9306 | 4123 | switch (tmp) { |
e5edeb50 JH |
4124 | case 'r': ftst = OP_FTEREAD; break; |
4125 | case 'w': ftst = OP_FTEWRITE; break; | |
4126 | case 'x': ftst = OP_FTEEXEC; break; | |
4127 | case 'o': ftst = OP_FTEOWNED; break; | |
4128 | case 'R': ftst = OP_FTRREAD; break; | |
4129 | case 'W': ftst = OP_FTRWRITE; break; | |
4130 | case 'X': ftst = OP_FTREXEC; break; | |
4131 | case 'O': ftst = OP_FTROWNED; break; | |
4132 | case 'e': ftst = OP_FTIS; break; | |
4133 | case 'z': ftst = OP_FTZERO; break; | |
4134 | case 's': ftst = OP_FTSIZE; break; | |
4135 | case 'f': ftst = OP_FTFILE; break; | |
4136 | case 'd': ftst = OP_FTDIR; break; | |
4137 | case 'l': ftst = OP_FTLINK; break; | |
4138 | case 'p': ftst = OP_FTPIPE; break; | |
4139 | case 'S': ftst = OP_FTSOCK; break; | |
4140 | case 'u': ftst = OP_FTSUID; break; | |
4141 | case 'g': ftst = OP_FTSGID; break; | |
4142 | case 'k': ftst = OP_FTSVTX; break; | |
4143 | case 'b': ftst = OP_FTBLK; break; | |
4144 | case 'c': ftst = OP_FTCHR; break; | |
4145 | case 't': ftst = OP_FTTTY; break; | |
4146 | case 'T': ftst = OP_FTTEXT; break; | |
4147 | case 'B': ftst = OP_FTBINARY; break; | |
4148 | case 'M': case 'A': case 'C': | |
fafc274c | 4149 | gv_fetchpvs("\024", GV_ADD|GV_NOTQUAL, SVt_PV); |
e5edeb50 JH |
4150 | switch (tmp) { |
4151 | case 'M': ftst = OP_FTMTIME; break; | |
4152 | case 'A': ftst = OP_FTATIME; break; | |
4153 | case 'C': ftst = OP_FTCTIME; break; | |
4154 | default: break; | |
4155 | } | |
4156 | break; | |
378cc40b | 4157 | default: |
378cc40b LW |
4158 | break; |
4159 | } | |
e5edeb50 | 4160 | if (ftst) { |
eb160463 | 4161 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 4162 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a18d764d | 4163 | "### Saw file test %c\n", (int)tmp); |
5f80b19c | 4164 | } ); |
e5edeb50 JH |
4165 | FTST(ftst); |
4166 | } | |
4167 | else { | |
4168 | /* Assume it was a minus followed by a one-letter named | |
4169 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 4170 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
17ad61e0 | 4171 | "### '-%c' looked like a file test but was not\n", |
4fccd7c6 | 4172 | (int) tmp); |
5f80b19c | 4173 | } ); |
3cf7b4c4 | 4174 | s = --PL_bufptr; |
e5edeb50 | 4175 | } |
378cc40b | 4176 | } |
90771dc0 NC |
4177 | { |
4178 | const char tmp = *s++; | |
4179 | if (*s == tmp) { | |
4180 | s++; | |
4181 | if (PL_expect == XOPERATOR) | |
4182 | TERM(POSTDEC); | |
4183 | else | |
4184 | OPERATOR(PREDEC); | |
4185 | } | |
4186 | else if (*s == '>') { | |
4187 | s++; | |
29595ff2 | 4188 | s = SKIPSPACE1(s); |
90771dc0 NC |
4189 | if (isIDFIRST_lazy_if(s,UTF)) { |
4190 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); | |
4191 | TOKEN(ARROW); | |
4192 | } | |
4193 | else if (*s == '$') | |
4194 | OPERATOR(ARROW); | |
4195 | else | |
4196 | TERM(ARROW); | |
4197 | } | |
3280af22 | 4198 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4199 | Aop(OP_SUBTRACT); |
4200 | else { | |
4201 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4202 | check_uni(); | |
4203 | OPERATOR('-'); /* unary minus */ | |
79072805 | 4204 | } |
2f3197b3 | 4205 | } |
79072805 | 4206 | |
378cc40b | 4207 | case '+': |
90771dc0 NC |
4208 | { |
4209 | const char tmp = *s++; | |
4210 | if (*s == tmp) { | |
4211 | s++; | |
4212 | if (PL_expect == XOPERATOR) | |
4213 | TERM(POSTINC); | |
4214 | else | |
4215 | OPERATOR(PREINC); | |
4216 | } | |
3280af22 | 4217 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4218 | Aop(OP_ADD); |
4219 | else { | |
4220 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4221 | check_uni(); | |
4222 | OPERATOR('+'); | |
4223 | } | |
2f3197b3 | 4224 | } |
a687059c | 4225 | |
378cc40b | 4226 | case '*': |
3280af22 NIS |
4227 | if (PL_expect != XOPERATOR) { |
4228 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
4229 | PL_expect = XOPERATOR; | |
4230 | force_ident(PL_tokenbuf, '*'); | |
4231 | if (!*PL_tokenbuf) | |
a0d0e21e | 4232 | PREREF('*'); |
79072805 | 4233 | TERM('*'); |
a687059c | 4234 | } |
79072805 LW |
4235 | s++; |
4236 | if (*s == '*') { | |
a687059c | 4237 | s++; |
79072805 | 4238 | PWop(OP_POW); |
a687059c | 4239 | } |
79072805 LW |
4240 | Mop(OP_MULTIPLY); |
4241 | ||
378cc40b | 4242 | case '%': |
3280af22 | 4243 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 4244 | ++s; |
4245 | Mop(OP_MODULO); | |
a687059c | 4246 | } |
3280af22 | 4247 | PL_tokenbuf[0] = '%'; |
e8ae98db RGS |
4248 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
4249 | sizeof PL_tokenbuf - 1, FALSE); | |
3280af22 | 4250 | if (!PL_tokenbuf[1]) { |
bbce6d69 | 4251 | PREREF('%'); |
a687059c | 4252 | } |
3280af22 | 4253 | PL_pending_ident = '%'; |
bbce6d69 | 4254 | TERM('%'); |
a687059c | 4255 | |
378cc40b | 4256 | case '^': |
79072805 | 4257 | s++; |
a0d0e21e | 4258 | BOop(OP_BIT_XOR); |
79072805 | 4259 | case '[': |
3280af22 | 4260 | PL_lex_brackets++; |
79072805 | 4261 | /* FALL THROUGH */ |
378cc40b | 4262 | case '~': |
0d863452 | 4263 | if (s[1] == '~' |
3e7dd34d | 4264 | && (PL_expect == XOPERATOR || PL_expect == XTERMORDORDOR)) |
0d863452 RH |
4265 | { |
4266 | s += 2; | |
4267 | Eop(OP_SMARTMATCH); | |
4268 | } | |
378cc40b | 4269 | case ',': |
90771dc0 NC |
4270 | { |
4271 | const char tmp = *s++; | |
4272 | OPERATOR(tmp); | |
4273 | } | |
a0d0e21e LW |
4274 | case ':': |
4275 | if (s[1] == ':') { | |
4276 | len = 0; | |
0bfa2a8a | 4277 | goto just_a_word_zero_gv; |
a0d0e21e LW |
4278 | } |
4279 | s++; | |
09bef843 SB |
4280 | switch (PL_expect) { |
4281 | OP *attrs; | |
5db06880 NC |
4282 | #ifdef PERL_MAD |
4283 | I32 stuffstart; | |
4284 | #endif | |
09bef843 SB |
4285 | case XOPERATOR: |
4286 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
4287 | break; | |
4288 | PL_bufptr = s; /* update in case we back off */ | |
4289 | goto grabattrs; | |
4290 | case XATTRBLOCK: | |
4291 | PL_expect = XBLOCK; | |
4292 | goto grabattrs; | |
4293 | case XATTRTERM: | |
4294 | PL_expect = XTERMBLOCK; | |
4295 | grabattrs: | |
5db06880 NC |
4296 | #ifdef PERL_MAD |
4297 | stuffstart = s - SvPVX(PL_linestr) - 1; | |
4298 | #endif | |
29595ff2 | 4299 | s = PEEKSPACE(s); |
5f66b61c | 4300 | attrs = NULL; |
7e2040f0 | 4301 | while (isIDFIRST_lazy_if(s,UTF)) { |
90771dc0 | 4302 | I32 tmp; |
5cc237b8 | 4303 | SV *sv; |
09bef843 | 4304 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 4305 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len, 0))) { |
f9829d6b GS |
4306 | if (tmp < 0) tmp = -tmp; |
4307 | switch (tmp) { | |
4308 | case KEY_or: | |
4309 | case KEY_and: | |
4310 | case KEY_for: | |
4311 | case KEY_unless: | |
4312 | case KEY_if: | |
4313 | case KEY_while: | |
4314 | case KEY_until: | |
4315 | goto got_attrs; | |
4316 | default: | |
4317 | break; | |
4318 | } | |
4319 | } | |
5cc237b8 | 4320 | sv = newSVpvn(s, len); |
09bef843 SB |
4321 | if (*d == '(') { |
4322 | d = scan_str(d,TRUE,TRUE); | |
4323 | if (!d) { | |
09bef843 SB |
4324 | /* MUST advance bufptr here to avoid bogus |
4325 | "at end of line" context messages from yyerror(). | |
4326 | */ | |
4327 | PL_bufptr = s + len; | |
4328 | yyerror("Unterminated attribute parameter in attribute list"); | |
4329 | if (attrs) | |
4330 | op_free(attrs); | |
5cc237b8 | 4331 | sv_free(sv); |
bbf60fe6 | 4332 | return REPORT(0); /* EOF indicator */ |
09bef843 SB |
4333 | } |
4334 | } | |
4335 | if (PL_lex_stuff) { | |
09bef843 SB |
4336 | sv_catsv(sv, PL_lex_stuff); |
4337 | attrs = append_elem(OP_LIST, attrs, | |
4338 | newSVOP(OP_CONST, 0, sv)); | |
4339 | SvREFCNT_dec(PL_lex_stuff); | |
a0714e2c | 4340 | PL_lex_stuff = NULL; |
09bef843 SB |
4341 | } |
4342 | else { | |
5cc237b8 BS |
4343 | if (len == 6 && strnEQ(SvPVX(sv), "unique", len)) { |
4344 | sv_free(sv); | |
1108974d | 4345 | if (PL_in_my == KEY_our) { |
371fce9b | 4346 | #ifdef USE_ITHREADS |
6154021b | 4347 | GvUNIQUE_on(cGVOPx_gv(pl_yylval.opval)); |
371fce9b | 4348 | #else |
1108974d | 4349 | /* skip to avoid loading attributes.pm */ |
371fce9b | 4350 | #endif |
df9a6019 | 4351 | deprecate(":unique"); |
1108974d | 4352 | } |
bfed75c6 | 4353 | else |
371fce9b DM |
4354 | Perl_croak(aTHX_ "The 'unique' attribute may only be applied to 'our' variables"); |
4355 | } | |
4356 | ||
d3cea301 SB |
4357 | /* NOTE: any CV attrs applied here need to be part of |
4358 | the CVf_BUILTIN_ATTRS define in cv.h! */ | |
5cc237b8 BS |
4359 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "lvalue", len)) { |
4360 | sv_free(sv); | |
78f9721b | 4361 | CvLVALUE_on(PL_compcv); |
5cc237b8 BS |
4362 | } |
4363 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "locked", len)) { | |
4364 | sv_free(sv); | |
78f9721b | 4365 | CvLOCKED_on(PL_compcv); |
5cc237b8 BS |
4366 | } |
4367 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "method", len)) { | |
4368 | sv_free(sv); | |
78f9721b | 4369 | CvMETHOD_on(PL_compcv); |
5cc237b8 | 4370 | } |
78f9721b SM |
4371 | /* After we've set the flags, it could be argued that |
4372 | we don't need to do the attributes.pm-based setting | |
4373 | process, and shouldn't bother appending recognized | |
d3cea301 SB |
4374 | flags. To experiment with that, uncomment the |
4375 | following "else". (Note that's already been | |
4376 | uncommented. That keeps the above-applied built-in | |
4377 | attributes from being intercepted (and possibly | |
4378 | rejected) by a package's attribute routines, but is | |
4379 | justified by the performance win for the common case | |
4380 | of applying only built-in attributes.) */ | |
0256094b | 4381 | else |
78f9721b SM |
4382 | attrs = append_elem(OP_LIST, attrs, |
4383 | newSVOP(OP_CONST, 0, | |
5cc237b8 | 4384 | sv)); |
09bef843 | 4385 | } |
29595ff2 | 4386 | s = PEEKSPACE(d); |
0120eecf | 4387 | if (*s == ':' && s[1] != ':') |
29595ff2 | 4388 | s = PEEKSPACE(s+1); |
0120eecf GS |
4389 | else if (s == d) |
4390 | break; /* require real whitespace or :'s */ | |
29595ff2 | 4391 | /* XXX losing whitespace on sequential attributes here */ |
09bef843 | 4392 | } |
90771dc0 NC |
4393 | { |
4394 | const char tmp | |
4395 | = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ | |
4396 | if (*s != ';' && *s != '}' && *s != tmp | |
4397 | && (tmp != '=' || *s != ')')) { | |
4398 | const char q = ((*s == '\'') ? '"' : '\''); | |
4399 | /* If here for an expression, and parsed no attrs, back | |
4400 | off. */ | |
4401 | if (tmp == '=' && !attrs) { | |
4402 | s = PL_bufptr; | |
4403 | break; | |
4404 | } | |
4405 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
4406 | context messages from yyerror(). | |
4407 | */ | |
4408 | PL_bufptr = s; | |
10edeb5d JH |
4409 | yyerror( (const char *) |
4410 | (*s | |
4411 | ? Perl_form(aTHX_ "Invalid separator character " | |
4412 | "%c%c%c in attribute list", q, *s, q) | |
4413 | : "Unterminated attribute list" ) ); | |
90771dc0 NC |
4414 | if (attrs) |
4415 | op_free(attrs); | |
4416 | OPERATOR(':'); | |
09bef843 | 4417 | } |
09bef843 | 4418 | } |
f9829d6b | 4419 | got_attrs: |
09bef843 | 4420 | if (attrs) { |
cd81e915 | 4421 | start_force(PL_curforce); |
9ded7720 | 4422 | NEXTVAL_NEXTTOKE.opval = attrs; |
cd81e915 | 4423 | CURMAD('_', PL_nextwhite); |
89122651 | 4424 | force_next(THING); |
5db06880 NC |
4425 | } |
4426 | #ifdef PERL_MAD | |
4427 | if (PL_madskills) { | |
cd81e915 | 4428 | PL_thistoken = newSVpvn(SvPVX(PL_linestr) + stuffstart, |
5db06880 | 4429 | (s - SvPVX(PL_linestr)) - stuffstart); |
09bef843 | 4430 | } |
5db06880 | 4431 | #endif |
09bef843 SB |
4432 | TOKEN(COLONATTR); |
4433 | } | |
a0d0e21e | 4434 | OPERATOR(':'); |
8990e307 LW |
4435 | case '(': |
4436 | s++; | |
3280af22 NIS |
4437 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
4438 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 4439 | else |
3280af22 | 4440 | PL_expect = XTERM; |
29595ff2 | 4441 | s = SKIPSPACE1(s); |
a0d0e21e | 4442 | TOKEN('('); |
378cc40b | 4443 | case ';': |
f4dd75d9 | 4444 | CLINE; |
90771dc0 NC |
4445 | { |
4446 | const char tmp = *s++; | |
4447 | OPERATOR(tmp); | |
4448 | } | |
378cc40b | 4449 | case ')': |
90771dc0 NC |
4450 | { |
4451 | const char tmp = *s++; | |
29595ff2 | 4452 | s = SKIPSPACE1(s); |
90771dc0 NC |
4453 | if (*s == '{') |
4454 | PREBLOCK(tmp); | |
4455 | TERM(tmp); | |
4456 | } | |
79072805 LW |
4457 | case ']': |
4458 | s++; | |
3280af22 | 4459 | if (PL_lex_brackets <= 0) |
d98d5fff | 4460 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 4461 | else |
3280af22 NIS |
4462 | --PL_lex_brackets; |
4463 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4464 | if (PL_lex_brackets == 0) { | |
02255c60 FC |
4465 | if (*s == '-' && s[1] == '>') |
4466 | PL_lex_state = LEX_INTERPENDMAYBE; | |
4467 | else if (*s != '[' && *s != '{') | |
3280af22 | 4468 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4469 | } |
4470 | } | |
4633a7c4 | 4471 | TERM(']'); |
79072805 LW |
4472 | case '{': |
4473 | leftbracket: | |
79072805 | 4474 | s++; |
3280af22 | 4475 | if (PL_lex_brackets > 100) { |
8edd5f42 | 4476 | Renew(PL_lex_brackstack, PL_lex_brackets + 10, char); |
8990e307 | 4477 | } |
3280af22 | 4478 | switch (PL_expect) { |
a0d0e21e | 4479 | case XTERM: |
3280af22 | 4480 | if (PL_lex_formbrack) { |
a0d0e21e LW |
4481 | s--; |
4482 | PRETERMBLOCK(DO); | |
4483 | } | |
3280af22 NIS |
4484 | if (PL_oldoldbufptr == PL_last_lop) |
4485 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4486 | else |
3280af22 | 4487 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 4488 | OPERATOR(HASHBRACK); |
a0d0e21e | 4489 | case XOPERATOR: |
bf4acbe4 | 4490 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 4491 | s++; |
44a8e56a | 4492 | d = s; |
3280af22 NIS |
4493 | PL_tokenbuf[0] = '\0'; |
4494 | if (d < PL_bufend && *d == '-') { | |
4495 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 4496 | d++; |
bf4acbe4 | 4497 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 4498 | d++; |
4499 | } | |
7e2040f0 | 4500 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 4501 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 4502 | FALSE, &len); |
bf4acbe4 | 4503 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
4504 | d++; |
4505 | if (*d == '}') { | |
f54cb97a | 4506 | const char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 4507 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
4508 | if (minus) | |
4509 | force_next('-'); | |
748a9306 LW |
4510 | } |
4511 | } | |
4512 | /* FALL THROUGH */ | |
09bef843 | 4513 | case XATTRBLOCK: |
748a9306 | 4514 | case XBLOCK: |
3280af22 NIS |
4515 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
4516 | PL_expect = XSTATE; | |
a0d0e21e | 4517 | break; |
09bef843 | 4518 | case XATTRTERM: |
a0d0e21e | 4519 | case XTERMBLOCK: |
3280af22 NIS |
4520 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
4521 | PL_expect = XSTATE; | |
a0d0e21e LW |
4522 | break; |
4523 | default: { | |
f54cb97a | 4524 | const char *t; |
3280af22 NIS |
4525 | if (PL_oldoldbufptr == PL_last_lop) |
4526 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4527 | else |
3280af22 | 4528 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
29595ff2 | 4529 | s = SKIPSPACE1(s); |
8452ff4b SB |
4530 | if (*s == '}') { |
4531 | if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) { | |
4532 | PL_expect = XTERM; | |
4533 | /* This hack is to get the ${} in the message. */ | |
4534 | PL_bufptr = s+1; | |
4535 | yyerror("syntax error"); | |
4536 | break; | |
4537 | } | |
a0d0e21e | 4538 | OPERATOR(HASHBRACK); |
8452ff4b | 4539 | } |
b8a4b1be GS |
4540 | /* This hack serves to disambiguate a pair of curlies |
4541 | * as being a block or an anon hash. Normally, expectation | |
4542 | * determines that, but in cases where we're not in a | |
4543 | * position to expect anything in particular (like inside | |
4544 | * eval"") we have to resolve the ambiguity. This code | |
4545 | * covers the case where the first term in the curlies is a | |
4546 | * quoted string. Most other cases need to be explicitly | |
a0288114 | 4547 | * disambiguated by prepending a "+" before the opening |
b8a4b1be GS |
4548 | * curly in order to force resolution as an anon hash. |
4549 | * | |
4550 | * XXX should probably propagate the outer expectation | |
4551 | * into eval"" to rely less on this hack, but that could | |
4552 | * potentially break current behavior of eval"". | |
4553 | * GSAR 97-07-21 | |
4554 | */ | |
4555 | t = s; | |
4556 | if (*s == '\'' || *s == '"' || *s == '`') { | |
4557 | /* common case: get past first string, handling escapes */ | |
3280af22 | 4558 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
4559 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
4560 | t++; | |
4561 | t++; | |
a0d0e21e | 4562 | } |
b8a4b1be | 4563 | else if (*s == 'q') { |
3280af22 | 4564 | if (++t < PL_bufend |
b8a4b1be | 4565 | && (!isALNUM(*t) |
3280af22 | 4566 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
4567 | && !isALNUM(*t)))) |
4568 | { | |
abc667d1 | 4569 | /* skip q//-like construct */ |
f54cb97a | 4570 | const char *tmps; |
b8a4b1be GS |
4571 | char open, close, term; |
4572 | I32 brackets = 1; | |
4573 | ||
3280af22 | 4574 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be | 4575 | t++; |
abc667d1 DM |
4576 | /* check for q => */ |
4577 | if (t+1 < PL_bufend && t[0] == '=' && t[1] == '>') { | |
4578 | OPERATOR(HASHBRACK); | |
4579 | } | |
b8a4b1be GS |
4580 | term = *t; |
4581 | open = term; | |
4582 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
4583 | term = tmps[5]; | |
4584 | close = term; | |
4585 | if (open == close) | |
3280af22 NIS |
4586 | for (t++; t < PL_bufend; t++) { |
4587 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 4588 | t++; |
6d07e5e9 | 4589 | else if (*t == open) |
b8a4b1be GS |
4590 | break; |
4591 | } | |
abc667d1 | 4592 | else { |
3280af22 NIS |
4593 | for (t++; t < PL_bufend; t++) { |
4594 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 4595 | t++; |
6d07e5e9 | 4596 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
4597 | break; |
4598 | else if (*t == open) | |
4599 | brackets++; | |
4600 | } | |
abc667d1 DM |
4601 | } |
4602 | t++; | |
b8a4b1be | 4603 | } |
abc667d1 DM |
4604 | else |
4605 | /* skip plain q word */ | |
4606 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) | |
4607 | t += UTF8SKIP(t); | |
a0d0e21e | 4608 | } |
7e2040f0 | 4609 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 4610 | t += UTF8SKIP(t); |
7e2040f0 | 4611 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 4612 | t += UTF8SKIP(t); |
a0d0e21e | 4613 | } |
3280af22 | 4614 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 4615 | t++; |
b8a4b1be GS |
4616 | /* if comma follows first term, call it an anon hash */ |
4617 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 4618 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 4619 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 4620 | OPERATOR(HASHBRACK); |
3280af22 | 4621 | if (PL_expect == XREF) |
4e4e412b | 4622 | PL_expect = XTERM; |
a0d0e21e | 4623 | else { |
3280af22 NIS |
4624 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
4625 | PL_expect = XSTATE; | |
a0d0e21e | 4626 | } |
8990e307 | 4627 | } |
a0d0e21e | 4628 | break; |
463ee0b2 | 4629 | } |
6154021b | 4630 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 | 4631 | if (isSPACE(*s) || *s == '#') |
3280af22 | 4632 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 4633 | TOKEN('{'); |
378cc40b | 4634 | case '}': |
79072805 LW |
4635 | rightbracket: |
4636 | s++; | |
3280af22 | 4637 | if (PL_lex_brackets <= 0) |
d98d5fff | 4638 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 4639 | else |
3280af22 | 4640 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 4641 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
4642 | PL_lex_formbrack = 0; |
4643 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4644 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
4645 | if (PL_expect & XFAKEBRACK) { |
4646 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
4647 | PL_lex_state = LEX_INTERPEND; |
4648 | PL_bufptr = s; | |
5db06880 NC |
4649 | #if 0 |
4650 | if (PL_madskills) { | |
cd81e915 | 4651 | if (!PL_thiswhite) |
6b29d1f5 | 4652 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4653 | sv_catpvn(PL_thiswhite,"}",1); |
5db06880 NC |
4654 | } |
4655 | #endif | |
cea2e8a9 | 4656 | return yylex(); /* ignore fake brackets */ |
79072805 | 4657 | } |
fa83b5b6 | 4658 | if (*s == '-' && s[1] == '>') |
3280af22 | 4659 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 4660 | else if (*s != '[' && *s != '{') |
3280af22 | 4661 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4662 | } |
4663 | } | |
9059aa12 LW |
4664 | if (PL_expect & XFAKEBRACK) { |
4665 | PL_expect &= XENUMMASK; | |
3280af22 | 4666 | PL_bufptr = s; |
cea2e8a9 | 4667 | return yylex(); /* ignore fake brackets */ |
748a9306 | 4668 | } |
cd81e915 | 4669 | start_force(PL_curforce); |
5db06880 NC |
4670 | if (PL_madskills) { |
4671 | curmad('X', newSVpvn(s-1,1)); | |
cd81e915 | 4672 | CURMAD('_', PL_thiswhite); |
5db06880 | 4673 | } |
79072805 | 4674 | force_next('}'); |
5db06880 | 4675 | #ifdef PERL_MAD |
cd81e915 | 4676 | if (!PL_thistoken) |
6b29d1f5 | 4677 | PL_thistoken = newSVpvs(""); |
5db06880 | 4678 | #endif |
79072805 | 4679 | TOKEN(';'); |
378cc40b LW |
4680 | case '&': |
4681 | s++; | |
90771dc0 | 4682 | if (*s++ == '&') |
a0d0e21e | 4683 | AOPERATOR(ANDAND); |
378cc40b | 4684 | s--; |
3280af22 | 4685 | if (PL_expect == XOPERATOR) { |
041457d9 DM |
4686 | if (PL_bufptr == PL_linestart && ckWARN(WARN_SEMICOLON) |
4687 | && isIDFIRST_lazy_if(s,UTF)) | |
7e2040f0 | 4688 | { |
57843af0 | 4689 | CopLINE_dec(PL_curcop); |
9014280d | 4690 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 4691 | CopLINE_inc(PL_curcop); |
463ee0b2 | 4692 | } |
79072805 | 4693 | BAop(OP_BIT_AND); |
463ee0b2 | 4694 | } |
79072805 | 4695 | |
3280af22 NIS |
4696 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
4697 | if (*PL_tokenbuf) { | |
4698 | PL_expect = XOPERATOR; | |
4699 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 4700 | } |
79072805 LW |
4701 | else |
4702 | PREREF('&'); | |
6154021b | 4703 | pl_yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
4704 | TERM('&'); |
4705 | ||
378cc40b LW |
4706 | case '|': |
4707 | s++; | |
90771dc0 | 4708 | if (*s++ == '|') |
a0d0e21e | 4709 | AOPERATOR(OROR); |
378cc40b | 4710 | s--; |
79072805 | 4711 | BOop(OP_BIT_OR); |
378cc40b LW |
4712 | case '=': |
4713 | s++; | |
748a9306 | 4714 | { |
90771dc0 NC |
4715 | const char tmp = *s++; |
4716 | if (tmp == '=') | |
4717 | Eop(OP_EQ); | |
4718 | if (tmp == '>') | |
4719 | OPERATOR(','); | |
4720 | if (tmp == '~') | |
4721 | PMop(OP_MATCH); | |
4722 | if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX) | |
4723 | && strchr("+-*/%.^&|<",tmp)) | |
4724 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4725 | "Reversed %c= operator",(int)tmp); | |
4726 | s--; | |
4727 | if (PL_expect == XSTATE && isALPHA(tmp) && | |
4728 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
4729 | { | |
4730 | if (PL_in_eval && !PL_rsfp) { | |
4731 | d = PL_bufend; | |
4732 | while (s < d) { | |
4733 | if (*s++ == '\n') { | |
4734 | incline(s); | |
4735 | if (strnEQ(s,"=cut",4)) { | |
4736 | s = strchr(s,'\n'); | |
4737 | if (s) | |
4738 | s++; | |
4739 | else | |
4740 | s = d; | |
4741 | incline(s); | |
4742 | goto retry; | |
4743 | } | |
4744 | } | |
a5f75d66 | 4745 | } |
90771dc0 | 4746 | goto retry; |
a5f75d66 | 4747 | } |
5db06880 NC |
4748 | #ifdef PERL_MAD |
4749 | if (PL_madskills) { | |
cd81e915 | 4750 | if (!PL_thiswhite) |
6b29d1f5 | 4751 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4752 | sv_catpvn(PL_thiswhite, PL_linestart, |
5db06880 NC |
4753 | PL_bufend - PL_linestart); |
4754 | } | |
4755 | #endif | |
90771dc0 NC |
4756 | s = PL_bufend; |
4757 | PL_doextract = TRUE; | |
4758 | goto retry; | |
a5f75d66 | 4759 | } |
a0d0e21e | 4760 | } |
3280af22 | 4761 | if (PL_lex_brackets < PL_lex_formbrack) { |
c35e046a | 4762 | const char *t = s; |
51882d45 | 4763 | #ifdef PERL_STRICT_CR |
c35e046a | 4764 | while (SPACE_OR_TAB(*t)) |
51882d45 | 4765 | #else |
c35e046a | 4766 | while (SPACE_OR_TAB(*t) || *t == '\r') |
51882d45 | 4767 | #endif |
c35e046a | 4768 | t++; |
a0d0e21e LW |
4769 | if (*t == '\n' || *t == '#') { |
4770 | s--; | |
3280af22 | 4771 | PL_expect = XBLOCK; |
a0d0e21e LW |
4772 | goto leftbracket; |
4773 | } | |
79072805 | 4774 | } |
6154021b | 4775 | pl_yylval.ival = 0; |
a0d0e21e | 4776 | OPERATOR(ASSIGNOP); |
378cc40b | 4777 | case '!': |
be25f609 | 4778 | if (PL_expect == XSTATE && s[1] == '!' && s[2] == '!') { |
4779 | s += 3; | |
4780 | LOP(OP_DIE,XTERM); | |
4781 | } | |
378cc40b | 4782 | s++; |
90771dc0 NC |
4783 | { |
4784 | const char tmp = *s++; | |
4785 | if (tmp == '=') { | |
4786 | /* was this !=~ where !~ was meant? | |
4787 | * warn on m:!=~\s+([/?]|[msy]\W|tr\W): */ | |
4788 | ||
4789 | if (*s == '~' && ckWARN(WARN_SYNTAX)) { | |
4790 | const char *t = s+1; | |
4791 | ||
4792 | while (t < PL_bufend && isSPACE(*t)) | |
4793 | ++t; | |
4794 | ||
4795 | if (*t == '/' || *t == '?' || | |
4796 | ((*t == 'm' || *t == 's' || *t == 'y') | |
4797 | && !isALNUM(t[1])) || | |
4798 | (*t == 't' && t[1] == 'r' && !isALNUM(t[2]))) | |
4799 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4800 | "!=~ should be !~"); | |
4801 | } | |
4802 | Eop(OP_NE); | |
4803 | } | |
4804 | if (tmp == '~') | |
4805 | PMop(OP_NOT); | |
4806 | } | |
378cc40b LW |
4807 | s--; |
4808 | OPERATOR('!'); | |
4809 | case '<': | |
3280af22 | 4810 | if (PL_expect != XOPERATOR) { |
93a17b20 | 4811 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 4812 | check_uni(); |
79072805 LW |
4813 | if (s[1] == '<') |
4814 | s = scan_heredoc(s); | |
4815 | else | |
4816 | s = scan_inputsymbol(s); | |
4817 | TERM(sublex_start()); | |
378cc40b LW |
4818 | } |
4819 | s++; | |
90771dc0 NC |
4820 | { |
4821 | char tmp = *s++; | |
4822 | if (tmp == '<') | |
4823 | SHop(OP_LEFT_SHIFT); | |
4824 | if (tmp == '=') { | |
4825 | tmp = *s++; | |
4826 | if (tmp == '>') | |
4827 | Eop(OP_NCMP); | |
4828 | s--; | |
4829 | Rop(OP_LE); | |
4830 | } | |
395c3793 | 4831 | } |
378cc40b | 4832 | s--; |
79072805 | 4833 | Rop(OP_LT); |
378cc40b LW |
4834 | case '>': |
4835 | s++; | |
90771dc0 NC |
4836 | { |
4837 | const char tmp = *s++; | |
4838 | if (tmp == '>') | |
4839 | SHop(OP_RIGHT_SHIFT); | |
d4c19fe8 | 4840 | else if (tmp == '=') |
90771dc0 NC |
4841 | Rop(OP_GE); |
4842 | } | |
378cc40b | 4843 | s--; |
79072805 | 4844 | Rop(OP_GT); |
378cc40b LW |
4845 | |
4846 | case '$': | |
bbce6d69 | 4847 | CLINE; |
4848 | ||
3280af22 NIS |
4849 | if (PL_expect == XOPERATOR) { |
4850 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4851 | PL_expect = XTERM; | |
c445ea15 | 4852 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4853 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4854 | } |
8990e307 | 4855 | } |
a0d0e21e | 4856 | |
7e2040f0 | 4857 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-", s[2]))) { |
3280af22 | 4858 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
4859 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
4860 | sizeof PL_tokenbuf - 1, FALSE); | |
4861 | if (PL_expect == XOPERATOR) | |
4862 | no_op("Array length", s); | |
3280af22 | 4863 | if (!PL_tokenbuf[1]) |
a0d0e21e | 4864 | PREREF(DOLSHARP); |
3280af22 NIS |
4865 | PL_expect = XOPERATOR; |
4866 | PL_pending_ident = '#'; | |
463ee0b2 | 4867 | TOKEN(DOLSHARP); |
79072805 | 4868 | } |
bbce6d69 | 4869 | |
3280af22 | 4870 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
4871 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
4872 | sizeof PL_tokenbuf - 1, FALSE); | |
4873 | if (PL_expect == XOPERATOR) | |
4874 | no_op("Scalar", s); | |
3280af22 NIS |
4875 | if (!PL_tokenbuf[1]) { |
4876 | if (s == PL_bufend) | |
bbce6d69 | 4877 | yyerror("Final $ should be \\$ or $name"); |
4878 | PREREF('$'); | |
8990e307 | 4879 | } |
a0d0e21e | 4880 | |
bbce6d69 | 4881 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 4882 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
6154021b | 4883 | pl_yylval.opval = newSVOP(OP_CONST, 0, |
fc15ae8f | 4884 | newSViv(CopARYBASE_get(&PL_compiling))); |
6154021b | 4885 | pl_yylval.opval->op_private = OPpCONST_ARYBASE; |
bbce6d69 | 4886 | TERM(THING); |
4887 | } | |
4888 | ||
ff68c719 | 4889 | d = s; |
90771dc0 NC |
4890 | { |
4891 | const char tmp = *s; | |
4892 | if (PL_lex_state == LEX_NORMAL) | |
29595ff2 | 4893 | s = SKIPSPACE1(s); |
ff68c719 | 4894 | |
90771dc0 NC |
4895 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) |
4896 | && intuit_more(s)) { | |
4897 | if (*s == '[') { | |
4898 | PL_tokenbuf[0] = '@'; | |
4899 | if (ckWARN(WARN_SYNTAX)) { | |
c35e046a AL |
4900 | char *t = s+1; |
4901 | ||
4902 | while (isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$') | |
4903 | t++; | |
90771dc0 | 4904 | if (*t++ == ',') { |
29595ff2 | 4905 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
90771dc0 NC |
4906 | while (t < PL_bufend && *t != ']') |
4907 | t++; | |
9014280d | 4908 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
90771dc0 | 4909 | "Multidimensional syntax %.*s not supported", |
36c7798d | 4910 | (int)((t - PL_bufptr) + 1), PL_bufptr); |
90771dc0 | 4911 | } |
748a9306 | 4912 | } |
93a17b20 | 4913 | } |
90771dc0 NC |
4914 | else if (*s == '{') { |
4915 | char *t; | |
4916 | PL_tokenbuf[0] = '%'; | |
4917 | if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX) | |
4918 | && (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
4919 | { | |
4920 | char tmpbuf[sizeof PL_tokenbuf]; | |
c35e046a AL |
4921 | do { |
4922 | t++; | |
4923 | } while (isSPACE(*t)); | |
90771dc0 | 4924 | if (isIDFIRST_lazy_if(t,UTF)) { |
780a5241 | 4925 | STRLEN len; |
90771dc0 | 4926 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, |
780a5241 | 4927 | &len); |
c35e046a AL |
4928 | while (isSPACE(*t)) |
4929 | t++; | |
780a5241 | 4930 | if (*t == ';' && get_cvn_flags(tmpbuf, len, 0)) |
90771dc0 NC |
4931 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
4932 | "You need to quote \"%s\"", | |
4933 | tmpbuf); | |
4934 | } | |
4935 | } | |
4936 | } | |
93a17b20 | 4937 | } |
bbce6d69 | 4938 | |
90771dc0 NC |
4939 | PL_expect = XOPERATOR; |
4940 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { | |
4941 | const bool islop = (PL_last_lop == PL_oldoldbufptr); | |
4942 | if (!islop || PL_last_lop_op == OP_GREPSTART) | |
4943 | PL_expect = XOPERATOR; | |
4944 | else if (strchr("$@\"'`q", *s)) | |
4945 | PL_expect = XTERM; /* e.g. print $fh "foo" */ | |
4946 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) | |
4947 | PL_expect = XTERM; /* e.g. print $fh &sub */ | |
4948 | else if (isIDFIRST_lazy_if(s,UTF)) { | |
4949 | char tmpbuf[sizeof PL_tokenbuf]; | |
4950 | int t2; | |
4951 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
5458a98a | 4952 | if ((t2 = keyword(tmpbuf, len, 0))) { |
90771dc0 NC |
4953 | /* binary operators exclude handle interpretations */ |
4954 | switch (t2) { | |
4955 | case -KEY_x: | |
4956 | case -KEY_eq: | |
4957 | case -KEY_ne: | |
4958 | case -KEY_gt: | |
4959 | case -KEY_lt: | |
4960 | case -KEY_ge: | |
4961 | case -KEY_le: | |
4962 | case -KEY_cmp: | |
4963 | break; | |
4964 | default: | |
4965 | PL_expect = XTERM; /* e.g. print $fh length() */ | |
4966 | break; | |
4967 | } | |
4968 | } | |
4969 | else { | |
4970 | PL_expect = XTERM; /* e.g. print $fh subr() */ | |
84902520 TB |
4971 | } |
4972 | } | |
90771dc0 NC |
4973 | else if (isDIGIT(*s)) |
4974 | PL_expect = XTERM; /* e.g. print $fh 3 */ | |
4975 | else if (*s == '.' && isDIGIT(s[1])) | |
4976 | PL_expect = XTERM; /* e.g. print $fh .3 */ | |
4977 | else if ((*s == '?' || *s == '-' || *s == '+') | |
4978 | && !isSPACE(s[1]) && s[1] != '=') | |
4979 | PL_expect = XTERM; /* e.g. print $fh -1 */ | |
4980 | else if (*s == '/' && !isSPACE(s[1]) && s[1] != '=' | |
4981 | && s[1] != '/') | |
4982 | PL_expect = XTERM; /* e.g. print $fh /.../ | |
4983 | XXX except DORDOR operator | |
4984 | */ | |
4985 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) | |
4986 | && s[2] != '=') | |
4987 | PL_expect = XTERM; /* print $fh <<"EOF" */ | |
93a17b20 | 4988 | } |
bbce6d69 | 4989 | } |
3280af22 | 4990 | PL_pending_ident = '$'; |
79072805 | 4991 | TOKEN('$'); |
378cc40b LW |
4992 | |
4993 | case '@': | |
3280af22 | 4994 | if (PL_expect == XOPERATOR) |
bbce6d69 | 4995 | no_op("Array", s); |
3280af22 NIS |
4996 | PL_tokenbuf[0] = '@'; |
4997 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
4998 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 4999 | PREREF('@'); |
5000 | } | |
3280af22 | 5001 | if (PL_lex_state == LEX_NORMAL) |
29595ff2 | 5002 | s = SKIPSPACE1(s); |
3280af22 | 5003 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 5004 | if (*s == '{') |
3280af22 | 5005 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
5006 | |
5007 | /* Warn about @ where they meant $. */ | |
041457d9 DM |
5008 | if (*s == '[' || *s == '{') { |
5009 | if (ckWARN(WARN_SYNTAX)) { | |
f54cb97a | 5010 | const char *t = s + 1; |
7e2040f0 | 5011 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
5012 | t++; |
5013 | if (*t == '}' || *t == ']') { | |
5014 | t++; | |
29595ff2 | 5015 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
9014280d | 5016 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 5017 | "Scalar value %.*s better written as $%.*s", |
36c7798d DM |
5018 | (int)(t-PL_bufptr), PL_bufptr, |
5019 | (int)(t-PL_bufptr-1), PL_bufptr+1); | |
a0d0e21e | 5020 | } |
93a17b20 LW |
5021 | } |
5022 | } | |
463ee0b2 | 5023 | } |
3280af22 | 5024 | PL_pending_ident = '@'; |
79072805 | 5025 | TERM('@'); |
378cc40b | 5026 | |
c963b151 | 5027 | case '/': /* may be division, defined-or, or pattern */ |
6f33ba73 RGS |
5028 | if (PL_expect == XTERMORDORDOR && s[1] == '/') { |
5029 | s += 2; | |
5030 | AOPERATOR(DORDOR); | |
5031 | } | |
c963b151 | 5032 | case '?': /* may either be conditional or pattern */ |
be25f609 | 5033 | if (PL_expect == XSTATE && s[1] == '?' && s[2] == '?') { |
5034 | s += 3; | |
5035 | LOP(OP_WARN,XTERM); | |
5036 | } | |
5037 | if (PL_expect == XOPERATOR) { | |
90771dc0 | 5038 | char tmp = *s++; |
c963b151 | 5039 | if(tmp == '?') { |
be25f609 | 5040 | OPERATOR('?'); |
c963b151 BD |
5041 | } |
5042 | else { | |
5043 | tmp = *s++; | |
5044 | if(tmp == '/') { | |
5045 | /* A // operator. */ | |
5046 | AOPERATOR(DORDOR); | |
5047 | } | |
5048 | else { | |
5049 | s--; | |
5050 | Mop(OP_DIVIDE); | |
5051 | } | |
5052 | } | |
5053 | } | |
5054 | else { | |
5055 | /* Disable warning on "study /blah/" */ | |
5056 | if (PL_oldoldbufptr == PL_last_uni | |
5057 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
5058 | || memNE(PL_last_uni, "study", 5) | |
5059 | || isALNUM_lazy_if(PL_last_uni+5,UTF) | |
5060 | )) | |
5061 | check_uni(); | |
5062 | s = scan_pat(s,OP_MATCH); | |
5063 | TERM(sublex_start()); | |
5064 | } | |
378cc40b LW |
5065 | |
5066 | case '.': | |
51882d45 GS |
5067 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
5068 | #ifdef PERL_STRICT_CR | |
5069 | && s[1] == '\n' | |
5070 | #else | |
5071 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
5072 | #endif | |
5073 | && (s == PL_linestart || s[-1] == '\n') ) | |
5074 | { | |
3280af22 NIS |
5075 | PL_lex_formbrack = 0; |
5076 | PL_expect = XSTATE; | |
79072805 LW |
5077 | goto rightbracket; |
5078 | } | |
be25f609 | 5079 | if (PL_expect == XSTATE && s[1] == '.' && s[2] == '.') { |
5080 | s += 3; | |
5081 | OPERATOR(YADAYADA); | |
5082 | } | |
3280af22 | 5083 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
90771dc0 | 5084 | char tmp = *s++; |
a687059c LW |
5085 | if (*s == tmp) { |
5086 | s++; | |
2f3197b3 LW |
5087 | if (*s == tmp) { |
5088 | s++; | |
6154021b | 5089 | pl_yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
5090 | } |
5091 | else | |
6154021b | 5092 | pl_yylval.ival = 0; |
378cc40b | 5093 | OPERATOR(DOTDOT); |
a687059c | 5094 | } |
3280af22 | 5095 | if (PL_expect != XOPERATOR) |
2f3197b3 | 5096 | check_uni(); |
79072805 | 5097 | Aop(OP_CONCAT); |
378cc40b LW |
5098 | } |
5099 | /* FALL THROUGH */ | |
5100 | case '0': case '1': case '2': case '3': case '4': | |
5101 | case '5': case '6': case '7': case '8': case '9': | |
6154021b | 5102 | s = scan_num(s, &pl_yylval); |
931e0695 | 5103 | DEBUG_T( { printbuf("### Saw number in %s\n", s); } ); |
3280af22 | 5104 | if (PL_expect == XOPERATOR) |
8990e307 | 5105 | no_op("Number",s); |
79072805 LW |
5106 | TERM(THING); |
5107 | ||
5108 | case '\'': | |
5db06880 | 5109 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5110 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
5111 | if (PL_expect == XOPERATOR) { |
5112 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
5113 | PL_expect = XTERM; | |
c445ea15 | 5114 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 5115 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 5116 | } |
463ee0b2 | 5117 | else |
8990e307 | 5118 | no_op("String",s); |
463ee0b2 | 5119 | } |
79072805 | 5120 | if (!s) |
d4c19fe8 | 5121 | missingterm(NULL); |
6154021b | 5122 | pl_yylval.ival = OP_CONST; |
79072805 LW |
5123 | TERM(sublex_start()); |
5124 | ||
5125 | case '"': | |
5db06880 | 5126 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5127 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
5128 | if (PL_expect == XOPERATOR) { |
5129 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
5130 | PL_expect = XTERM; | |
c445ea15 | 5131 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 5132 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 5133 | } |
463ee0b2 | 5134 | else |
8990e307 | 5135 | no_op("String",s); |
463ee0b2 | 5136 | } |
79072805 | 5137 | if (!s) |
d4c19fe8 | 5138 | missingterm(NULL); |
6154021b | 5139 | pl_yylval.ival = OP_CONST; |
cfd0369c NC |
5140 | /* FIXME. I think that this can be const if char *d is replaced by |
5141 | more localised variables. */ | |
3280af22 | 5142 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
63cd0674 | 5143 | if (*d == '$' || *d == '@' || *d == '\\' || !UTF8_IS_INVARIANT((U8)*d)) { |
6154021b | 5144 | pl_yylval.ival = OP_STRINGIFY; |
4633a7c4 LW |
5145 | break; |
5146 | } | |
5147 | } | |
79072805 LW |
5148 | TERM(sublex_start()); |
5149 | ||
5150 | case '`': | |
5db06880 | 5151 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5152 | DEBUG_T( { printbuf("### Saw backtick string before %s\n", s); } ); |
3280af22 | 5153 | if (PL_expect == XOPERATOR) |
8990e307 | 5154 | no_op("Backticks",s); |
79072805 | 5155 | if (!s) |
d4c19fe8 | 5156 | missingterm(NULL); |
9b201d7d | 5157 | readpipe_override(); |
79072805 LW |
5158 | TERM(sublex_start()); |
5159 | ||
5160 | case '\\': | |
5161 | s++; | |
041457d9 | 5162 | if (PL_lex_inwhat && isDIGIT(*s) && ckWARN(WARN_SYNTAX)) |
9014280d | 5163 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression", |
599cee73 | 5164 | *s, *s); |
3280af22 | 5165 | if (PL_expect == XOPERATOR) |
8990e307 | 5166 | no_op("Backslash",s); |
79072805 LW |
5167 | OPERATOR(REFGEN); |
5168 | ||
a7cb1f99 | 5169 | case 'v': |
e526c9e6 | 5170 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
f54cb97a | 5171 | char *start = s + 2; |
dd629d5b | 5172 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
5173 | start++; |
5174 | if (*start == '.' && isDIGIT(start[1])) { | |
6154021b | 5175 | s = scan_num(s, &pl_yylval); |
a7cb1f99 GS |
5176 | TERM(THING); |
5177 | } | |
e526c9e6 | 5178 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
6f33ba73 RGS |
5179 | else if (!isALPHA(*start) && (PL_expect == XTERM |
5180 | || PL_expect == XREF || PL_expect == XSTATE | |
5181 | || PL_expect == XTERMORDORDOR)) { | |
9bde8eb0 | 5182 | GV *const gv = gv_fetchpvn_flags(s, start - s, 0, SVt_PVCV); |
e526c9e6 | 5183 | if (!gv) { |
6154021b | 5184 | s = scan_num(s, &pl_yylval); |
e526c9e6 GS |
5185 | TERM(THING); |
5186 | } | |
5187 | } | |
a7cb1f99 GS |
5188 | } |
5189 | goto keylookup; | |
79072805 | 5190 | case 'x': |
3280af22 | 5191 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
5192 | s++; |
5193 | Mop(OP_REPEAT); | |
2f3197b3 | 5194 | } |
79072805 LW |
5195 | goto keylookup; |
5196 | ||
378cc40b | 5197 | case '_': |
79072805 LW |
5198 | case 'a': case 'A': |
5199 | case 'b': case 'B': | |
5200 | case 'c': case 'C': | |
5201 | case 'd': case 'D': | |
5202 | case 'e': case 'E': | |
5203 | case 'f': case 'F': | |
5204 | case 'g': case 'G': | |
5205 | case 'h': case 'H': | |
5206 | case 'i': case 'I': | |
5207 | case 'j': case 'J': | |
5208 | case 'k': case 'K': | |
5209 | case 'l': case 'L': | |
5210 | case 'm': case 'M': | |
5211 | case 'n': case 'N': | |
5212 | case 'o': case 'O': | |
5213 | case 'p': case 'P': | |
5214 | case 'q': case 'Q': | |
5215 | case 'r': case 'R': | |
5216 | case 's': case 'S': | |
5217 | case 't': case 'T': | |
5218 | case 'u': case 'U': | |
a7cb1f99 | 5219 | case 'V': |
79072805 LW |
5220 | case 'w': case 'W': |
5221 | case 'X': | |
5222 | case 'y': case 'Y': | |
5223 | case 'z': case 'Z': | |
5224 | ||
49dc05e3 | 5225 | keylookup: { |
90771dc0 | 5226 | I32 tmp; |
10edeb5d JH |
5227 | |
5228 | orig_keyword = 0; | |
5229 | gv = NULL; | |
5230 | gvp = NULL; | |
49dc05e3 | 5231 | |
3280af22 NIS |
5232 | PL_bufptr = s; |
5233 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 5234 | |
5235 | /* Some keywords can be followed by any delimiter, including ':' */ | |
155aba94 GS |
5236 | tmp = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
5237 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || | |
5238 | (PL_tokenbuf[0] == 'q' && | |
5239 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 5240 | |
5241 | /* x::* is just a word, unless x is "CORE" */ | |
3280af22 | 5242 | if (!tmp && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
5243 | goto just_a_word; |
5244 | ||
3643fb5f | 5245 | d = s; |
3280af22 | 5246 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
5247 | d++; /* no comments skipped here, or s### is misparsed */ |
5248 | ||
5249 | /* Is this a label? */ | |
3280af22 NIS |
5250 | if (!tmp && PL_expect == XSTATE |
5251 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
8ebc5c01 | 5252 | s = d + 1; |
6154021b | 5253 | pl_yylval.pval = CopLABEL_alloc(PL_tokenbuf); |
8ebc5c01 | 5254 | CLINE; |
5255 | TOKEN(LABEL); | |
3643fb5f CS |
5256 | } |
5257 | ||
5258 | /* Check for keywords */ | |
5458a98a | 5259 | tmp = keyword(PL_tokenbuf, len, 0); |
748a9306 LW |
5260 | |
5261 | /* Is this a word before a => operator? */ | |
1c3923b3 | 5262 | if (*d == '=' && d[1] == '>') { |
748a9306 | 5263 | CLINE; |
6154021b | 5264 | pl_yylval.opval |
d0a148a6 NC |
5265 | = (OP*)newSVOP(OP_CONST, 0, |
5266 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
6154021b | 5267 | pl_yylval.opval->op_private = OPpCONST_BARE; |
748a9306 LW |
5268 | TERM(WORD); |
5269 | } | |
5270 | ||
a0d0e21e | 5271 | if (tmp < 0) { /* second-class keyword? */ |
cbbf8932 AL |
5272 | GV *ogv = NULL; /* override (winner) */ |
5273 | GV *hgv = NULL; /* hidden (loser) */ | |
3280af22 | 5274 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 5275 | CV *cv; |
90e5519e | 5276 | if ((gv = gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVCV)) && |
56f7f34b CS |
5277 | (cv = GvCVu(gv))) |
5278 | { | |
5279 | if (GvIMPORTED_CV(gv)) | |
5280 | ogv = gv; | |
5281 | else if (! CvMETHOD(cv)) | |
5282 | hgv = gv; | |
5283 | } | |
5284 | if (!ogv && | |
3280af22 | 5285 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
9e0d86f8 | 5286 | (gv = *gvp) && isGV_with_GP(gv) && |
56f7f34b CS |
5287 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
5288 | { | |
5289 | ogv = gv; | |
5290 | } | |
5291 | } | |
5292 | if (ogv) { | |
30fe34ed | 5293 | orig_keyword = tmp; |
56f7f34b | 5294 | tmp = 0; /* overridden by import or by GLOBAL */ |
6e7b2336 GS |
5295 | } |
5296 | else if (gv && !gvp | |
5297 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
47f9f84c | 5298 | && GvCVu(gv)) |
6e7b2336 GS |
5299 | { |
5300 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 5301 | } |
56f7f34b CS |
5302 | else { /* no override */ |
5303 | tmp = -tmp; | |
ac206dc8 | 5304 | if (tmp == KEY_dump && ckWARN(WARN_MISC)) { |
9014280d | 5305 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
ac206dc8 RGS |
5306 | "dump() better written as CORE::dump()"); |
5307 | } | |
a0714e2c | 5308 | gv = NULL; |
56f7f34b | 5309 | gvp = 0; |
041457d9 DM |
5310 | if (hgv && tmp != KEY_x && tmp != KEY_CORE |
5311 | && ckWARN(WARN_AMBIGUOUS)) /* never ambiguous */ | |
9014280d | 5312 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 5313 | "Ambiguous call resolved as CORE::%s(), %s", |
2f3ca594 | 5314 | GvENAME(hgv), "qualify as such or use &"); |
49dc05e3 | 5315 | } |
a0d0e21e LW |
5316 | } |
5317 | ||
5318 | reserved_word: | |
5319 | switch (tmp) { | |
79072805 LW |
5320 | |
5321 | default: /* not a keyword */ | |
0bfa2a8a NC |
5322 | /* Trade off - by using this evil construction we can pull the |
5323 | variable gv into the block labelled keylookup. If not, then | |
5324 | we have to give it function scope so that the goto from the | |
5325 | earlier ':' case doesn't bypass the initialisation. */ | |
5326 | if (0) { | |
5327 | just_a_word_zero_gv: | |
5328 | gv = NULL; | |
5329 | gvp = NULL; | |
8bee0991 | 5330 | orig_keyword = 0; |
0bfa2a8a | 5331 | } |
93a17b20 | 5332 | just_a_word: { |
96e4d5b1 | 5333 | SV *sv; |
ce29ac45 | 5334 | int pkgname = 0; |
f54cb97a | 5335 | const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
5069cc75 | 5336 | CV *cv; |
5db06880 | 5337 | #ifdef PERL_MAD |
cd81e915 | 5338 | SV *nextPL_nextwhite = 0; |
5db06880 NC |
5339 | #endif |
5340 | ||
8990e307 LW |
5341 | |
5342 | /* Get the rest if it looks like a package qualifier */ | |
5343 | ||
155aba94 | 5344 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 5345 | STRLEN morelen; |
3280af22 | 5346 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
5347 | TRUE, &morelen); |
5348 | if (!morelen) | |
cea2e8a9 | 5349 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 5350 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 5351 | len += morelen; |
ce29ac45 | 5352 | pkgname = 1; |
a0d0e21e | 5353 | } |
8990e307 | 5354 | |
3280af22 NIS |
5355 | if (PL_expect == XOPERATOR) { |
5356 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 5357 | CopLINE_dec(PL_curcop); |
9014280d | 5358 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 5359 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
5360 | } |
5361 | else | |
54310121 | 5362 | no_op("Bareword",s); |
463ee0b2 | 5363 | } |
8990e307 | 5364 | |
c3e0f903 GS |
5365 | /* Look for a subroutine with this name in current package, |
5366 | unless name is "Foo::", in which case Foo is a bearword | |
5367 | (and a package name). */ | |
5368 | ||
5db06880 | 5369 | if (len > 2 && !PL_madskills && |
3280af22 | 5370 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 5371 | { |
f776e3cd | 5372 | if (ckWARN(WARN_BAREWORD) |
90e5519e | 5373 | && ! gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVHV)) |
9014280d | 5374 | Perl_warner(aTHX_ packWARN(WARN_BAREWORD), |
599cee73 | 5375 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 5376 | PL_tokenbuf); |
c3e0f903 | 5377 | len -= 2; |
3280af22 | 5378 | PL_tokenbuf[len] = '\0'; |
a0714e2c | 5379 | gv = NULL; |
c3e0f903 GS |
5380 | gvp = 0; |
5381 | } | |
5382 | else { | |
62d55b22 NC |
5383 | if (!gv) { |
5384 | /* Mustn't actually add anything to a symbol table. | |
5385 | But also don't want to "initialise" any placeholder | |
5386 | constants that might already be there into full | |
5387 | blown PVGVs with attached PVCV. */ | |
90e5519e NC |
5388 | gv = gv_fetchpvn_flags(PL_tokenbuf, len, |
5389 | GV_NOADD_NOINIT, SVt_PVCV); | |
62d55b22 | 5390 | } |
b3d904f3 | 5391 | len = 0; |
c3e0f903 GS |
5392 | } |
5393 | ||
5394 | /* if we saw a global override before, get the right name */ | |
8990e307 | 5395 | |
49dc05e3 | 5396 | if (gvp) { |
396482e1 | 5397 | sv = newSVpvs("CORE::GLOBAL::"); |
3280af22 | 5398 | sv_catpv(sv,PL_tokenbuf); |
49dc05e3 | 5399 | } |
8a7a129d NC |
5400 | else { |
5401 | /* If len is 0, newSVpv does strlen(), which is correct. | |
5402 | If len is non-zero, then it will be the true length, | |
5403 | and so the scalar will be created correctly. */ | |
5404 | sv = newSVpv(PL_tokenbuf,len); | |
5405 | } | |
5db06880 | 5406 | #ifdef PERL_MAD |
cd81e915 NC |
5407 | if (PL_madskills && !PL_thistoken) { |
5408 | char *start = SvPVX(PL_linestr) + PL_realtokenstart; | |
9ff8e806 | 5409 | PL_thistoken = newSVpvn(start,s - start); |
cd81e915 | 5410 | PL_realtokenstart = s - SvPVX(PL_linestr); |
5db06880 NC |
5411 | } |
5412 | #endif | |
8990e307 | 5413 | |
a0d0e21e LW |
5414 | /* Presume this is going to be a bareword of some sort. */ |
5415 | ||
5416 | CLINE; | |
6154021b RGS |
5417 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
5418 | pl_yylval.opval->op_private = OPpCONST_BARE; | |
8f8cf39c JH |
5419 | /* UTF-8 package name? */ |
5420 | if (UTF && !IN_BYTES && | |
95a20fc0 | 5421 | is_utf8_string((U8*)SvPVX_const(sv), SvCUR(sv))) |
8f8cf39c | 5422 | SvUTF8_on(sv); |
a0d0e21e | 5423 | |
c3e0f903 GS |
5424 | /* And if "Foo::", then that's what it certainly is. */ |
5425 | ||
5426 | if (len) | |
5427 | goto safe_bareword; | |
5428 | ||
5069cc75 NC |
5429 | /* Do the explicit type check so that we don't need to force |
5430 | the initialisation of the symbol table to have a real GV. | |
5431 | Beware - gv may not really be a PVGV, cv may not really be | |
5432 | a PVCV, (because of the space optimisations that gv_init | |
5433 | understands) But they're true if for this symbol there is | |
5434 | respectively a typeglob and a subroutine. | |
5435 | */ | |
5436 | cv = gv ? ((SvTYPE(gv) == SVt_PVGV) | |
5437 | /* Real typeglob, so get the real subroutine: */ | |
5438 | ? GvCVu(gv) | |
5439 | /* A proxy for a subroutine in this package? */ | |
5440 | : SvOK(gv) ? (CV *) gv : NULL) | |
5441 | : NULL; | |
5442 | ||
8990e307 LW |
5443 | /* See if it's the indirect object for a list operator. */ |
5444 | ||
3280af22 NIS |
5445 | if (PL_oldoldbufptr && |
5446 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
5447 | (PL_oldoldbufptr == PL_last_lop |
5448 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 5449 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
5450 | (PL_expect == XREF || |
5451 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 5452 | { |
748a9306 LW |
5453 | bool immediate_paren = *s == '('; |
5454 | ||
a0d0e21e | 5455 | /* (Now we can afford to cross potential line boundary.) */ |
cd81e915 | 5456 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5db06880 | 5457 | #ifdef PERL_MAD |
cd81e915 | 5458 | PL_nextwhite = nextPL_nextwhite; /* assume no & deception */ |
5db06880 | 5459 | #endif |
a0d0e21e LW |
5460 | |
5461 | /* Two barewords in a row may indicate method call. */ | |
5462 | ||
62d55b22 NC |
5463 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && |
5464 | (tmp = intuit_method(s, gv, cv))) | |
bbf60fe6 | 5465 | return REPORT(tmp); |
a0d0e21e LW |
5466 | |
5467 | /* If not a declared subroutine, it's an indirect object. */ | |
5468 | /* (But it's an indir obj regardless for sort.) */ | |
7294df96 | 5469 | /* Also, if "_" follows a filetest operator, it's a bareword */ |
a0d0e21e | 5470 | |
7294df96 RGS |
5471 | if ( |
5472 | ( !immediate_paren && (PL_last_lop_op == OP_SORT || | |
5069cc75 | 5473 | ((!gv || !cv) && |
a9ef352a | 5474 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 5475 | PL_last_lop_op != OP_GREPSTART)))) |
7294df96 RGS |
5476 | || (PL_tokenbuf[0] == '_' && PL_tokenbuf[1] == '\0' |
5477 | && ((PL_opargs[PL_last_lop_op] & OA_CLASS_MASK) == OA_FILESTATOP)) | |
5478 | ) | |
a9ef352a | 5479 | { |
3280af22 | 5480 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 5481 | goto bareword; |
93a17b20 LW |
5482 | } |
5483 | } | |
8990e307 | 5484 | |
3280af22 | 5485 | PL_expect = XOPERATOR; |
5db06880 NC |
5486 | #ifdef PERL_MAD |
5487 | if (isSPACE(*s)) | |
cd81e915 NC |
5488 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5489 | PL_nextwhite = nextPL_nextwhite; | |
5db06880 | 5490 | #else |
8990e307 | 5491 | s = skipspace(s); |
5db06880 | 5492 | #endif |
1c3923b3 GS |
5493 | |
5494 | /* Is this a word before a => operator? */ | |
ce29ac45 | 5495 | if (*s == '=' && s[1] == '>' && !pkgname) { |
1c3923b3 | 5496 | CLINE; |
6154021b | 5497 | sv_setpv(((SVOP*)pl_yylval.opval)->op_sv, PL_tokenbuf); |
0064a8a9 | 5498 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
6154021b | 5499 | SvUTF8_on(((SVOP*)pl_yylval.opval)->op_sv); |
1c3923b3 GS |
5500 | TERM(WORD); |
5501 | } | |
5502 | ||
5503 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 5504 | if (*s == '(') { |
79072805 | 5505 | CLINE; |
5069cc75 | 5506 | if (cv) { |
c35e046a AL |
5507 | d = s + 1; |
5508 | while (SPACE_OR_TAB(*d)) | |
5509 | d++; | |
62d55b22 | 5510 | if (*d == ')' && (sv = gv_const_sv(gv))) { |
96e4d5b1 | 5511 | s = d + 1; |
c631f32b | 5512 | goto its_constant; |
96e4d5b1 | 5513 | } |
5514 | } | |
5db06880 NC |
5515 | #ifdef PERL_MAD |
5516 | if (PL_madskills) { | |
cd81e915 NC |
5517 | PL_nextwhite = PL_thiswhite; |
5518 | PL_thiswhite = 0; | |
5db06880 | 5519 | } |
cd81e915 | 5520 | start_force(PL_curforce); |
5db06880 | 5521 | #endif |
6154021b | 5522 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
3280af22 | 5523 | PL_expect = XOPERATOR; |
5db06880 NC |
5524 | #ifdef PERL_MAD |
5525 | if (PL_madskills) { | |
cd81e915 NC |
5526 | PL_nextwhite = nextPL_nextwhite; |
5527 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5528 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5529 | } |
5530 | #endif | |
93a17b20 | 5531 | force_next(WORD); |
6154021b | 5532 | pl_yylval.ival = 0; |
463ee0b2 | 5533 | TOKEN('&'); |
79072805 | 5534 | } |
93a17b20 | 5535 | |
a0d0e21e | 5536 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 5537 | |
62d55b22 | 5538 | if ((*s == '$' || *s == '{') && (!gv || !cv)) { |
3280af22 NIS |
5539 | PL_last_lop = PL_oldbufptr; |
5540 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 5541 | PREBLOCK(METHOD); |
463ee0b2 LW |
5542 | } |
5543 | ||
8990e307 LW |
5544 | /* If followed by a bareword, see if it looks like indir obj. */ |
5545 | ||
30fe34ed RGS |
5546 | if (!orig_keyword |
5547 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
62d55b22 | 5548 | && (tmp = intuit_method(s, gv, cv))) |
bbf60fe6 | 5549 | return REPORT(tmp); |
93a17b20 | 5550 | |
8990e307 LW |
5551 | /* Not a method, so call it a subroutine (if defined) */ |
5552 | ||
5069cc75 | 5553 | if (cv) { |
0453d815 | 5554 | if (lastchar == '-' && ckWARN_d(WARN_AMBIGUOUS)) |
9014280d | 5555 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5556 | "Ambiguous use of -%s resolved as -&%s()", |
3280af22 | 5557 | PL_tokenbuf, PL_tokenbuf); |
89bfa8cd | 5558 | /* Check for a constant sub */ |
c631f32b | 5559 | if ((sv = gv_const_sv(gv))) { |
96e4d5b1 | 5560 | its_constant: |
6154021b RGS |
5561 | SvREFCNT_dec(((SVOP*)pl_yylval.opval)->op_sv); |
5562 | ((SVOP*)pl_yylval.opval)->op_sv = SvREFCNT_inc_simple(sv); | |
5563 | pl_yylval.opval->op_private = 0; | |
96e4d5b1 | 5564 | TOKEN(WORD); |
89bfa8cd | 5565 | } |
5566 | ||
a5f75d66 | 5567 | /* Resolve to GV now. */ |
62d55b22 | 5568 | if (SvTYPE(gv) != SVt_PVGV) { |
b3d904f3 | 5569 | gv = gv_fetchpv(PL_tokenbuf, 0, SVt_PVCV); |
62d55b22 NC |
5570 | assert (SvTYPE(gv) == SVt_PVGV); |
5571 | /* cv must have been some sort of placeholder, so | |
5572 | now needs replacing with a real code reference. */ | |
5573 | cv = GvCV(gv); | |
5574 | } | |
5575 | ||
6154021b RGS |
5576 | op_free(pl_yylval.opval); |
5577 | pl_yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
5578 | pl_yylval.opval->op_private |= OPpENTERSUB_NOPAREN; | |
7a52d87a | 5579 | PL_last_lop = PL_oldbufptr; |
bf848113 | 5580 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 | 5581 | /* Is there a prototype? */ |
5db06880 NC |
5582 | if ( |
5583 | #ifdef PERL_MAD | |
5584 | cv && | |
5585 | #endif | |
d9f2850e RGS |
5586 | SvPOK(cv)) |
5587 | { | |
5f66b61c AL |
5588 | STRLEN protolen; |
5589 | const char *proto = SvPV_const((SV*)cv, protolen); | |
5590 | if (!protolen) | |
4633a7c4 | 5591 | TERM(FUNC0SUB); |
8c28b960 | 5592 | if ((*proto == '$' || *proto == '_') && proto[1] == '\0') |
4633a7c4 | 5593 | OPERATOR(UNIOPSUB); |
0f5d0394 AE |
5594 | while (*proto == ';') |
5595 | proto++; | |
7a52d87a | 5596 | if (*proto == '&' && *s == '{') { |
49a54bbe NC |
5597 | if (PL_curstash) |
5598 | sv_setpvs(PL_subname, "__ANON__"); | |
5599 | else | |
5600 | sv_setpvs(PL_subname, "__ANON__::__ANON__"); | |
4633a7c4 LW |
5601 | PREBLOCK(LSTOPSUB); |
5602 | } | |
a9ef352a | 5603 | } |
5db06880 NC |
5604 | #ifdef PERL_MAD |
5605 | { | |
5606 | if (PL_madskills) { | |
cd81e915 NC |
5607 | PL_nextwhite = PL_thiswhite; |
5608 | PL_thiswhite = 0; | |
5db06880 | 5609 | } |
cd81e915 | 5610 | start_force(PL_curforce); |
6154021b | 5611 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
5db06880 NC |
5612 | PL_expect = XTERM; |
5613 | if (PL_madskills) { | |
cd81e915 NC |
5614 | PL_nextwhite = nextPL_nextwhite; |
5615 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5616 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5617 | } |
5618 | force_next(WORD); | |
5619 | TOKEN(NOAMP); | |
5620 | } | |
5621 | } | |
5622 | ||
5623 | /* Guess harder when madskills require "best effort". */ | |
5624 | if (PL_madskills && (!gv || !GvCVu(gv))) { | |
5625 | int probable_sub = 0; | |
5626 | if (strchr("\"'`$@%0123456789!*+{[<", *s)) | |
5627 | probable_sub = 1; | |
5628 | else if (isALPHA(*s)) { | |
5629 | char tmpbuf[1024]; | |
5630 | STRLEN tmplen; | |
5631 | d = s; | |
5632 | d = scan_word(d, tmpbuf, sizeof tmpbuf, TRUE, &tmplen); | |
5458a98a | 5633 | if (!keyword(tmpbuf, tmplen, 0)) |
5db06880 NC |
5634 | probable_sub = 1; |
5635 | else { | |
5636 | while (d < PL_bufend && isSPACE(*d)) | |
5637 | d++; | |
5638 | if (*d == '=' && d[1] == '>') | |
5639 | probable_sub = 1; | |
5640 | } | |
5641 | } | |
5642 | if (probable_sub) { | |
7a6d04f4 | 5643 | gv = gv_fetchpv(PL_tokenbuf, GV_ADD, SVt_PVCV); |
6154021b RGS |
5644 | op_free(pl_yylval.opval); |
5645 | pl_yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
5646 | pl_yylval.opval->op_private |= OPpENTERSUB_NOPAREN; | |
5db06880 NC |
5647 | PL_last_lop = PL_oldbufptr; |
5648 | PL_last_lop_op = OP_ENTERSUB; | |
cd81e915 NC |
5649 | PL_nextwhite = PL_thiswhite; |
5650 | PL_thiswhite = 0; | |
5651 | start_force(PL_curforce); | |
6154021b | 5652 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
5db06880 | 5653 | PL_expect = XTERM; |
cd81e915 NC |
5654 | PL_nextwhite = nextPL_nextwhite; |
5655 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5656 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5657 | force_next(WORD); |
5658 | TOKEN(NOAMP); | |
5659 | } | |
5660 | #else | |
6154021b | 5661 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
3280af22 | 5662 | PL_expect = XTERM; |
8990e307 LW |
5663 | force_next(WORD); |
5664 | TOKEN(NOAMP); | |
5db06880 | 5665 | #endif |
8990e307 | 5666 | } |
748a9306 | 5667 | |
8990e307 LW |
5668 | /* Call it a bare word */ |
5669 | ||
984f9f66 | 5670 | bareword: |
5603f27d | 5671 | if (PL_hints & HINT_STRICT_SUBS) |
6154021b | 5672 | pl_yylval.opval->op_private |= OPpCONST_STRICT; |
5603f27d | 5673 | else { |
041457d9 DM |
5674 | if (lastchar != '-') { |
5675 | if (ckWARN(WARN_RESERVED)) { | |
c35e046a AL |
5676 | d = PL_tokenbuf; |
5677 | while (isLOWER(*d)) | |
5678 | d++; | |
da51bb9b | 5679 | if (!*d && !gv_stashpv(PL_tokenbuf, 0)) |
9014280d | 5680 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
5681 | PL_tokenbuf); |
5682 | } | |
748a9306 LW |
5683 | } |
5684 | } | |
c3e0f903 GS |
5685 | |
5686 | safe_bareword: | |
3792a11b NC |
5687 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&') |
5688 | && ckWARN_d(WARN_AMBIGUOUS)) { | |
9014280d | 5689 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5690 | "Operator or semicolon missing before %c%s", |
3280af22 | 5691 | lastchar, PL_tokenbuf); |
9014280d | 5692 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5693 | "Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
5694 | lastchar, lastchar); |
5695 | } | |
93a17b20 | 5696 | TOKEN(WORD); |
79072805 | 5697 | } |
79072805 | 5698 | |
68dc0745 | 5699 | case KEY___FILE__: |
6154021b | 5700 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 5701 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 5702 | TERM(THING); |
5703 | ||
79072805 | 5704 | case KEY___LINE__: |
6154021b | 5705 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 5706 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 5707 | TERM(THING); |
68dc0745 | 5708 | |
5709 | case KEY___PACKAGE__: | |
6154021b | 5710 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
3280af22 | 5711 | (PL_curstash |
5aaec2b4 | 5712 | ? newSVhek(HvNAME_HEK(PL_curstash)) |
3280af22 | 5713 | : &PL_sv_undef)); |
79072805 | 5714 | TERM(THING); |
79072805 | 5715 | |
e50aee73 | 5716 | case KEY___DATA__: |
79072805 LW |
5717 | case KEY___END__: { |
5718 | GV *gv; | |
3280af22 | 5719 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
bfed75c6 | 5720 | const char *pname = "main"; |
3280af22 | 5721 | if (PL_tokenbuf[2] == 'D') |
bfcb3514 | 5722 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
f776e3cd NC |
5723 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD, |
5724 | SVt_PVIO); | |
a5f75d66 | 5725 | GvMULTI_on(gv); |
79072805 | 5726 | if (!GvIO(gv)) |
a0d0e21e | 5727 | GvIOp(gv) = newIO(); |
3280af22 | 5728 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
5729 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
5730 | { | |
f54cb97a | 5731 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
5732 | fcntl(fd,F_SETFD,fd >= 3); |
5733 | } | |
79072805 | 5734 | #endif |
fd049845 | 5735 | /* Mark this internal pseudo-handle as clean */ |
5736 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
4c84d7f2 | 5737 | if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 5738 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 5739 | else |
50952442 | 5740 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
5741 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
5742 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 5743 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 5744 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
5745 | if (PL_bufend-PL_bufptr > 2 |
5746 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
5747 | { |
5748 | Off_t loc = 0; | |
50952442 | 5749 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
5750 | loc = PerlIO_tell(PL_rsfp); |
5751 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
5752 | } | |
2986a63f JH |
5753 | #ifdef NETWARE |
5754 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
5755 | #else | |
c39cd008 | 5756 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 5757 | #endif /* NETWARE */ |
1143fce0 JH |
5758 | #ifdef PERLIO_IS_STDIO /* really? */ |
5759 | # if defined(__BORLANDC__) | |
cb359b41 JH |
5760 | /* XXX see note in do_binmode() */ |
5761 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
5762 | # endif |
5763 | #endif | |
c39cd008 GS |
5764 | if (loc > 0) |
5765 | PerlIO_seek(PL_rsfp, loc, 0); | |
5766 | } | |
5767 | } | |
5768 | #endif | |
7948272d | 5769 | #ifdef PERLIO_LAYERS |
52d2e0f4 JH |
5770 | if (!IN_BYTES) { |
5771 | if (UTF) | |
5772 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
5773 | else if (PL_encoding) { | |
5774 | SV *name; | |
5775 | dSP; | |
5776 | ENTER; | |
5777 | SAVETMPS; | |
5778 | PUSHMARK(sp); | |
5779 | EXTEND(SP, 1); | |
5780 | XPUSHs(PL_encoding); | |
5781 | PUTBACK; | |
5782 | call_method("name", G_SCALAR); | |
5783 | SPAGAIN; | |
5784 | name = POPs; | |
5785 | PUTBACK; | |
bfed75c6 | 5786 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
52d2e0f4 | 5787 | Perl_form(aTHX_ ":encoding(%"SVf")", |
be2597df | 5788 | SVfARG(name))); |
52d2e0f4 JH |
5789 | FREETMPS; |
5790 | LEAVE; | |
5791 | } | |
5792 | } | |
7948272d | 5793 | #endif |
5db06880 NC |
5794 | #ifdef PERL_MAD |
5795 | if (PL_madskills) { | |
cd81e915 NC |
5796 | if (PL_realtokenstart >= 0) { |
5797 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; | |
5798 | if (!PL_endwhite) | |
6b29d1f5 | 5799 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
5800 | sv_catsv(PL_endwhite, PL_thiswhite); |
5801 | PL_thiswhite = 0; | |
5802 | sv_catpvn(PL_endwhite, tstart, PL_bufend - tstart); | |
5803 | PL_realtokenstart = -1; | |
5db06880 | 5804 | } |
cd81e915 | 5805 | while ((s = filter_gets(PL_endwhite, PL_rsfp, |
1a9a51d4 | 5806 | SvCUR(PL_endwhite))) != NULL) ; |
5db06880 NC |
5807 | } |
5808 | #endif | |
4608196e | 5809 | PL_rsfp = NULL; |
79072805 LW |
5810 | } |
5811 | goto fake_eof; | |
e929a76b | 5812 | } |
de3bb511 | 5813 | |
8990e307 | 5814 | case KEY_AUTOLOAD: |
ed6116ce | 5815 | case KEY_DESTROY: |
79072805 | 5816 | case KEY_BEGIN: |
3c10abe3 | 5817 | case KEY_UNITCHECK: |
7d30b5c4 | 5818 | case KEY_CHECK: |
7d07dbc2 | 5819 | case KEY_INIT: |
7d30b5c4 | 5820 | case KEY_END: |
3280af22 NIS |
5821 | if (PL_expect == XSTATE) { |
5822 | s = PL_bufptr; | |
93a17b20 | 5823 | goto really_sub; |
79072805 LW |
5824 | } |
5825 | goto just_a_word; | |
5826 | ||
a0d0e21e LW |
5827 | case KEY_CORE: |
5828 | if (*s == ':' && s[1] == ':') { | |
5829 | s += 2; | |
748a9306 | 5830 | d = s; |
3280af22 | 5831 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 5832 | if (!(tmp = keyword(PL_tokenbuf, len, 0))) |
6798c92b | 5833 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); |
a0d0e21e LW |
5834 | if (tmp < 0) |
5835 | tmp = -tmp; | |
850e8516 | 5836 | else if (tmp == KEY_require || tmp == KEY_do) |
a72a1c8b | 5837 | /* that's a way to remember we saw "CORE::" */ |
850e8516 | 5838 | orig_keyword = tmp; |
a0d0e21e LW |
5839 | goto reserved_word; |
5840 | } | |
5841 | goto just_a_word; | |
5842 | ||
463ee0b2 LW |
5843 | case KEY_abs: |
5844 | UNI(OP_ABS); | |
5845 | ||
79072805 LW |
5846 | case KEY_alarm: |
5847 | UNI(OP_ALARM); | |
5848 | ||
5849 | case KEY_accept: | |
a0d0e21e | 5850 | LOP(OP_ACCEPT,XTERM); |
79072805 | 5851 | |
463ee0b2 LW |
5852 | case KEY_and: |
5853 | OPERATOR(ANDOP); | |
5854 | ||
79072805 | 5855 | case KEY_atan2: |
a0d0e21e | 5856 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 5857 | |
79072805 | 5858 | case KEY_bind: |
a0d0e21e | 5859 | LOP(OP_BIND,XTERM); |
79072805 LW |
5860 | |
5861 | case KEY_binmode: | |
1c1fc3ea | 5862 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
5863 | |
5864 | case KEY_bless: | |
a0d0e21e | 5865 | LOP(OP_BLESS,XTERM); |
79072805 | 5866 | |
0d863452 RH |
5867 | case KEY_break: |
5868 | FUN0(OP_BREAK); | |
5869 | ||
79072805 LW |
5870 | case KEY_chop: |
5871 | UNI(OP_CHOP); | |
5872 | ||
5873 | case KEY_continue: | |
0d863452 RH |
5874 | /* When 'use switch' is in effect, continue has a dual |
5875 | life as a control operator. */ | |
5876 | { | |
ef89dcc3 | 5877 | if (!FEATURE_IS_ENABLED("switch")) |
0d863452 RH |
5878 | PREBLOCK(CONTINUE); |
5879 | else { | |
5880 | /* We have to disambiguate the two senses of | |
5881 | "continue". If the next token is a '{' then | |
5882 | treat it as the start of a continue block; | |
5883 | otherwise treat it as a control operator. | |
5884 | */ | |
5885 | s = skipspace(s); | |
5886 | if (*s == '{') | |
79072805 | 5887 | PREBLOCK(CONTINUE); |
0d863452 RH |
5888 | else |
5889 | FUN0(OP_CONTINUE); | |
5890 | } | |
5891 | } | |
79072805 LW |
5892 | |
5893 | case KEY_chdir: | |
fafc274c NC |
5894 | /* may use HOME */ |
5895 | (void)gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV); | |
79072805 LW |
5896 | UNI(OP_CHDIR); |
5897 | ||
5898 | case KEY_close: | |
5899 | UNI(OP_CLOSE); | |
5900 | ||
5901 | case KEY_closedir: | |
5902 | UNI(OP_CLOSEDIR); | |
5903 | ||
5904 | case KEY_cmp: | |
5905 | Eop(OP_SCMP); | |
5906 | ||
5907 | case KEY_caller: | |
5908 | UNI(OP_CALLER); | |
5909 | ||
5910 | case KEY_crypt: | |
5911 | #ifdef FCRYPT | |
f4c556ac GS |
5912 | if (!PL_cryptseen) { |
5913 | PL_cryptseen = TRUE; | |
de3bb511 | 5914 | init_des(); |
f4c556ac | 5915 | } |
a687059c | 5916 | #endif |
a0d0e21e | 5917 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
5918 | |
5919 | case KEY_chmod: | |
a0d0e21e | 5920 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
5921 | |
5922 | case KEY_chown: | |
a0d0e21e | 5923 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
5924 | |
5925 | case KEY_connect: | |
a0d0e21e | 5926 | LOP(OP_CONNECT,XTERM); |
79072805 | 5927 | |
463ee0b2 LW |
5928 | case KEY_chr: |
5929 | UNI(OP_CHR); | |
5930 | ||
79072805 LW |
5931 | case KEY_cos: |
5932 | UNI(OP_COS); | |
5933 | ||
5934 | case KEY_chroot: | |
5935 | UNI(OP_CHROOT); | |
5936 | ||
0d863452 RH |
5937 | case KEY_default: |
5938 | PREBLOCK(DEFAULT); | |
5939 | ||
79072805 | 5940 | case KEY_do: |
29595ff2 | 5941 | s = SKIPSPACE1(s); |
79072805 | 5942 | if (*s == '{') |
a0d0e21e | 5943 | PRETERMBLOCK(DO); |
79072805 | 5944 | if (*s != '\'') |
89c5585f | 5945 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
850e8516 RGS |
5946 | if (orig_keyword == KEY_do) { |
5947 | orig_keyword = 0; | |
6154021b | 5948 | pl_yylval.ival = 1; |
850e8516 RGS |
5949 | } |
5950 | else | |
6154021b | 5951 | pl_yylval.ival = 0; |
378cc40b | 5952 | OPERATOR(DO); |
79072805 LW |
5953 | |
5954 | case KEY_die: | |
3280af22 | 5955 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 5956 | LOP(OP_DIE,XTERM); |
79072805 LW |
5957 | |
5958 | case KEY_defined: | |
5959 | UNI(OP_DEFINED); | |
5960 | ||
5961 | case KEY_delete: | |
a0d0e21e | 5962 | UNI(OP_DELETE); |
79072805 LW |
5963 | |
5964 | case KEY_dbmopen: | |
5c1737d1 | 5965 | gv_fetchpvs("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
a0d0e21e | 5966 | LOP(OP_DBMOPEN,XTERM); |
79072805 LW |
5967 | |
5968 | case KEY_dbmclose: | |
5969 | UNI(OP_DBMCLOSE); | |
5970 | ||
5971 | case KEY_dump: | |
a0d0e21e | 5972 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5973 | LOOPX(OP_DUMP); |
5974 | ||
5975 | case KEY_else: | |
5976 | PREBLOCK(ELSE); | |
5977 | ||
5978 | case KEY_elsif: | |
6154021b | 5979 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5980 | OPERATOR(ELSIF); |
5981 | ||
5982 | case KEY_eq: | |
5983 | Eop(OP_SEQ); | |
5984 | ||
a0d0e21e LW |
5985 | case KEY_exists: |
5986 | UNI(OP_EXISTS); | |
4e553d73 | 5987 | |
79072805 | 5988 | case KEY_exit: |
5db06880 NC |
5989 | if (PL_madskills) |
5990 | UNI(OP_INT); | |
79072805 LW |
5991 | UNI(OP_EXIT); |
5992 | ||
5993 | case KEY_eval: | |
29595ff2 | 5994 | s = SKIPSPACE1(s); |
3280af22 | 5995 | PL_expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 5996 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
5997 | |
5998 | case KEY_eof: | |
5999 | UNI(OP_EOF); | |
6000 | ||
6001 | case KEY_exp: | |
6002 | UNI(OP_EXP); | |
6003 | ||
6004 | case KEY_each: | |
6005 | UNI(OP_EACH); | |
6006 | ||
6007 | case KEY_exec: | |
a0d0e21e | 6008 | LOP(OP_EXEC,XREF); |
79072805 LW |
6009 | |
6010 | case KEY_endhostent: | |
6011 | FUN0(OP_EHOSTENT); | |
6012 | ||
6013 | case KEY_endnetent: | |
6014 | FUN0(OP_ENETENT); | |
6015 | ||
6016 | case KEY_endservent: | |
6017 | FUN0(OP_ESERVENT); | |
6018 | ||
6019 | case KEY_endprotoent: | |
6020 | FUN0(OP_EPROTOENT); | |
6021 | ||
6022 | case KEY_endpwent: | |
6023 | FUN0(OP_EPWENT); | |
6024 | ||
6025 | case KEY_endgrent: | |
6026 | FUN0(OP_EGRENT); | |
6027 | ||
6028 | case KEY_for: | |
6029 | case KEY_foreach: | |
6154021b | 6030 | pl_yylval.ival = CopLINE(PL_curcop); |
29595ff2 | 6031 | s = SKIPSPACE1(s); |
7e2040f0 | 6032 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 6033 | char *p = s; |
5db06880 NC |
6034 | #ifdef PERL_MAD |
6035 | int soff = s - SvPVX(PL_linestr); /* for skipspace realloc */ | |
6036 | #endif | |
6037 | ||
3280af22 | 6038 | if ((PL_bufend - p) >= 3 && |
55497cff | 6039 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
6040 | p += 2; | |
77ca0c92 LW |
6041 | else if ((PL_bufend - p) >= 4 && |
6042 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
6043 | p += 3; | |
29595ff2 | 6044 | p = PEEKSPACE(p); |
7e2040f0 | 6045 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
6046 | p = scan_ident(p, PL_bufend, |
6047 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
29595ff2 | 6048 | p = PEEKSPACE(p); |
77ca0c92 LW |
6049 | } |
6050 | if (*p != '$') | |
cea2e8a9 | 6051 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
5db06880 NC |
6052 | #ifdef PERL_MAD |
6053 | s = SvPVX(PL_linestr) + soff; | |
6054 | #endif | |
55497cff | 6055 | } |
79072805 LW |
6056 | OPERATOR(FOR); |
6057 | ||
6058 | case KEY_formline: | |
a0d0e21e | 6059 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
6060 | |
6061 | case KEY_fork: | |
6062 | FUN0(OP_FORK); | |
6063 | ||
6064 | case KEY_fcntl: | |
a0d0e21e | 6065 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
6066 | |
6067 | case KEY_fileno: | |
6068 | UNI(OP_FILENO); | |
6069 | ||
6070 | case KEY_flock: | |
a0d0e21e | 6071 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
6072 | |
6073 | case KEY_gt: | |
6074 | Rop(OP_SGT); | |
6075 | ||
6076 | case KEY_ge: | |
6077 | Rop(OP_SGE); | |
6078 | ||
6079 | case KEY_grep: | |
2c38e13d | 6080 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
6081 | |
6082 | case KEY_goto: | |
a0d0e21e | 6083 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6084 | LOOPX(OP_GOTO); |
6085 | ||
6086 | case KEY_gmtime: | |
6087 | UNI(OP_GMTIME); | |
6088 | ||
6089 | case KEY_getc: | |
6f33ba73 | 6090 | UNIDOR(OP_GETC); |
79072805 LW |
6091 | |
6092 | case KEY_getppid: | |
6093 | FUN0(OP_GETPPID); | |
6094 | ||
6095 | case KEY_getpgrp: | |
6096 | UNI(OP_GETPGRP); | |
6097 | ||
6098 | case KEY_getpriority: | |
a0d0e21e | 6099 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
6100 | |
6101 | case KEY_getprotobyname: | |
6102 | UNI(OP_GPBYNAME); | |
6103 | ||
6104 | case KEY_getprotobynumber: | |
a0d0e21e | 6105 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
6106 | |
6107 | case KEY_getprotoent: | |
6108 | FUN0(OP_GPROTOENT); | |
6109 | ||
6110 | case KEY_getpwent: | |
6111 | FUN0(OP_GPWENT); | |
6112 | ||
6113 | case KEY_getpwnam: | |
ff68c719 | 6114 | UNI(OP_GPWNAM); |
79072805 LW |
6115 | |
6116 | case KEY_getpwuid: | |
ff68c719 | 6117 | UNI(OP_GPWUID); |
79072805 LW |
6118 | |
6119 | case KEY_getpeername: | |
6120 | UNI(OP_GETPEERNAME); | |
6121 | ||
6122 | case KEY_gethostbyname: | |
6123 | UNI(OP_GHBYNAME); | |
6124 | ||
6125 | case KEY_gethostbyaddr: | |
a0d0e21e | 6126 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
6127 | |
6128 | case KEY_gethostent: | |
6129 | FUN0(OP_GHOSTENT); | |
6130 | ||
6131 | case KEY_getnetbyname: | |
6132 | UNI(OP_GNBYNAME); | |
6133 | ||
6134 | case KEY_getnetbyaddr: | |
a0d0e21e | 6135 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
6136 | |
6137 | case KEY_getnetent: | |
6138 | FUN0(OP_GNETENT); | |
6139 | ||
6140 | case KEY_getservbyname: | |
a0d0e21e | 6141 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
6142 | |
6143 | case KEY_getservbyport: | |
a0d0e21e | 6144 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
6145 | |
6146 | case KEY_getservent: | |
6147 | FUN0(OP_GSERVENT); | |
6148 | ||
6149 | case KEY_getsockname: | |
6150 | UNI(OP_GETSOCKNAME); | |
6151 | ||
6152 | case KEY_getsockopt: | |
a0d0e21e | 6153 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
6154 | |
6155 | case KEY_getgrent: | |
6156 | FUN0(OP_GGRENT); | |
6157 | ||
6158 | case KEY_getgrnam: | |
ff68c719 | 6159 | UNI(OP_GGRNAM); |
79072805 LW |
6160 | |
6161 | case KEY_getgrgid: | |
ff68c719 | 6162 | UNI(OP_GGRGID); |
79072805 LW |
6163 | |
6164 | case KEY_getlogin: | |
6165 | FUN0(OP_GETLOGIN); | |
6166 | ||
0d863452 | 6167 | case KEY_given: |
6154021b | 6168 | pl_yylval.ival = CopLINE(PL_curcop); |
0d863452 RH |
6169 | OPERATOR(GIVEN); |
6170 | ||
93a17b20 | 6171 | case KEY_glob: |
a0d0e21e | 6172 | LOP(OP_GLOB,XTERM); |
93a17b20 | 6173 | |
79072805 LW |
6174 | case KEY_hex: |
6175 | UNI(OP_HEX); | |
6176 | ||
6177 | case KEY_if: | |
6154021b | 6178 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6179 | OPERATOR(IF); |
6180 | ||
6181 | case KEY_index: | |
a0d0e21e | 6182 | LOP(OP_INDEX,XTERM); |
79072805 LW |
6183 | |
6184 | case KEY_int: | |
6185 | UNI(OP_INT); | |
6186 | ||
6187 | case KEY_ioctl: | |
a0d0e21e | 6188 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
6189 | |
6190 | case KEY_join: | |
a0d0e21e | 6191 | LOP(OP_JOIN,XTERM); |
79072805 LW |
6192 | |
6193 | case KEY_keys: | |
6194 | UNI(OP_KEYS); | |
6195 | ||
6196 | case KEY_kill: | |
a0d0e21e | 6197 | LOP(OP_KILL,XTERM); |
79072805 LW |
6198 | |
6199 | case KEY_last: | |
a0d0e21e | 6200 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 6201 | LOOPX(OP_LAST); |
4e553d73 | 6202 | |
79072805 LW |
6203 | case KEY_lc: |
6204 | UNI(OP_LC); | |
6205 | ||
6206 | case KEY_lcfirst: | |
6207 | UNI(OP_LCFIRST); | |
6208 | ||
6209 | case KEY_local: | |
6154021b | 6210 | pl_yylval.ival = 0; |
79072805 LW |
6211 | OPERATOR(LOCAL); |
6212 | ||
6213 | case KEY_length: | |
6214 | UNI(OP_LENGTH); | |
6215 | ||
6216 | case KEY_lt: | |
6217 | Rop(OP_SLT); | |
6218 | ||
6219 | case KEY_le: | |
6220 | Rop(OP_SLE); | |
6221 | ||
6222 | case KEY_localtime: | |
6223 | UNI(OP_LOCALTIME); | |
6224 | ||
6225 | case KEY_log: | |
6226 | UNI(OP_LOG); | |
6227 | ||
6228 | case KEY_link: | |
a0d0e21e | 6229 | LOP(OP_LINK,XTERM); |
79072805 LW |
6230 | |
6231 | case KEY_listen: | |
a0d0e21e | 6232 | LOP(OP_LISTEN,XTERM); |
79072805 | 6233 | |
c0329465 MB |
6234 | case KEY_lock: |
6235 | UNI(OP_LOCK); | |
6236 | ||
79072805 LW |
6237 | case KEY_lstat: |
6238 | UNI(OP_LSTAT); | |
6239 | ||
6240 | case KEY_m: | |
8782bef2 | 6241 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
6242 | TERM(sublex_start()); |
6243 | ||
a0d0e21e | 6244 | case KEY_map: |
2c38e13d | 6245 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 6246 | |
79072805 | 6247 | case KEY_mkdir: |
a0d0e21e | 6248 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
6249 | |
6250 | case KEY_msgctl: | |
a0d0e21e | 6251 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
6252 | |
6253 | case KEY_msgget: | |
a0d0e21e | 6254 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
6255 | |
6256 | case KEY_msgrcv: | |
a0d0e21e | 6257 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
6258 | |
6259 | case KEY_msgsnd: | |
a0d0e21e | 6260 | LOP(OP_MSGSND,XTERM); |
79072805 | 6261 | |
77ca0c92 | 6262 | case KEY_our: |
93a17b20 | 6263 | case KEY_my: |
952306ac | 6264 | case KEY_state: |
eac04b2e | 6265 | PL_in_my = (U16)tmp; |
29595ff2 | 6266 | s = SKIPSPACE1(s); |
7e2040f0 | 6267 | if (isIDFIRST_lazy_if(s,UTF)) { |
5db06880 NC |
6268 | #ifdef PERL_MAD |
6269 | char* start = s; | |
6270 | #endif | |
3280af22 | 6271 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
6272 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
6273 | goto really_sub; | |
def3634b | 6274 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 6275 | if (!PL_in_my_stash) { |
c750a3ec | 6276 | char tmpbuf[1024]; |
3280af22 | 6277 | PL_bufptr = s; |
d9fad198 | 6278 | my_snprintf(tmpbuf, sizeof(tmpbuf), "No such class %.1000s", PL_tokenbuf); |
c750a3ec MB |
6279 | yyerror(tmpbuf); |
6280 | } | |
5db06880 NC |
6281 | #ifdef PERL_MAD |
6282 | if (PL_madskills) { /* just add type to declarator token */ | |
cd81e915 NC |
6283 | sv_catsv(PL_thistoken, PL_nextwhite); |
6284 | PL_nextwhite = 0; | |
6285 | sv_catpvn(PL_thistoken, start, s - start); | |
5db06880 NC |
6286 | } |
6287 | #endif | |
c750a3ec | 6288 | } |
6154021b | 6289 | pl_yylval.ival = 1; |
55497cff | 6290 | OPERATOR(MY); |
93a17b20 | 6291 | |
79072805 | 6292 | case KEY_next: |
a0d0e21e | 6293 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6294 | LOOPX(OP_NEXT); |
6295 | ||
6296 | case KEY_ne: | |
6297 | Eop(OP_SNE); | |
6298 | ||
a0d0e21e | 6299 | case KEY_no: |
468aa647 | 6300 | s = tokenize_use(0, s); |
a0d0e21e LW |
6301 | OPERATOR(USE); |
6302 | ||
6303 | case KEY_not: | |
29595ff2 | 6304 | if (*s == '(' || (s = SKIPSPACE1(s), *s == '(')) |
2d2e263d LW |
6305 | FUN1(OP_NOT); |
6306 | else | |
6307 | OPERATOR(NOTOP); | |
a0d0e21e | 6308 | |
79072805 | 6309 | case KEY_open: |
29595ff2 | 6310 | s = SKIPSPACE1(s); |
7e2040f0 | 6311 | if (isIDFIRST_lazy_if(s,UTF)) { |
f54cb97a | 6312 | const char *t; |
c35e046a AL |
6313 | for (d = s; isALNUM_lazy_if(d,UTF);) |
6314 | d++; | |
6315 | for (t=d; isSPACE(*t);) | |
6316 | t++; | |
e2ab214b | 6317 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) |
66fbe8fb HS |
6318 | /* [perl #16184] */ |
6319 | && !(t[0] == '=' && t[1] == '>') | |
6320 | ) { | |
5f66b61c | 6321 | int parms_len = (int)(d-s); |
9014280d | 6322 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 6323 | "Precedence problem: open %.*s should be open(%.*s)", |
5f66b61c | 6324 | parms_len, s, parms_len, s); |
66fbe8fb | 6325 | } |
93a17b20 | 6326 | } |
a0d0e21e | 6327 | LOP(OP_OPEN,XTERM); |
79072805 | 6328 | |
463ee0b2 | 6329 | case KEY_or: |
6154021b | 6330 | pl_yylval.ival = OP_OR; |
463ee0b2 LW |
6331 | OPERATOR(OROP); |
6332 | ||
79072805 LW |
6333 | case KEY_ord: |
6334 | UNI(OP_ORD); | |
6335 | ||
6336 | case KEY_oct: | |
6337 | UNI(OP_OCT); | |
6338 | ||
6339 | case KEY_opendir: | |
a0d0e21e | 6340 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
6341 | |
6342 | case KEY_print: | |
3280af22 | 6343 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6344 | LOP(OP_PRINT,XREF); |
79072805 LW |
6345 | |
6346 | case KEY_printf: | |
3280af22 | 6347 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6348 | LOP(OP_PRTF,XREF); |
79072805 | 6349 | |
c07a80fd | 6350 | case KEY_prototype: |
6351 | UNI(OP_PROTOTYPE); | |
6352 | ||
79072805 | 6353 | case KEY_push: |
a0d0e21e | 6354 | LOP(OP_PUSH,XTERM); |
79072805 LW |
6355 | |
6356 | case KEY_pop: | |
6f33ba73 | 6357 | UNIDOR(OP_POP); |
79072805 | 6358 | |
a0d0e21e | 6359 | case KEY_pos: |
6f33ba73 | 6360 | UNIDOR(OP_POS); |
4e553d73 | 6361 | |
79072805 | 6362 | case KEY_pack: |
a0d0e21e | 6363 | LOP(OP_PACK,XTERM); |
79072805 LW |
6364 | |
6365 | case KEY_package: | |
a0d0e21e | 6366 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
6367 | OPERATOR(PACKAGE); |
6368 | ||
6369 | case KEY_pipe: | |
a0d0e21e | 6370 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
6371 | |
6372 | case KEY_q: | |
5db06880 | 6373 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6374 | if (!s) |
d4c19fe8 | 6375 | missingterm(NULL); |
6154021b | 6376 | pl_yylval.ival = OP_CONST; |
79072805 LW |
6377 | TERM(sublex_start()); |
6378 | ||
a0d0e21e LW |
6379 | case KEY_quotemeta: |
6380 | UNI(OP_QUOTEMETA); | |
6381 | ||
8990e307 | 6382 | case KEY_qw: |
5db06880 | 6383 | s = scan_str(s,!!PL_madskills,FALSE); |
8990e307 | 6384 | if (!s) |
d4c19fe8 | 6385 | missingterm(NULL); |
3480a8d2 | 6386 | PL_expect = XOPERATOR; |
8127e0e3 GS |
6387 | force_next(')'); |
6388 | if (SvCUR(PL_lex_stuff)) { | |
5f66b61c | 6389 | OP *words = NULL; |
8127e0e3 | 6390 | int warned = 0; |
3280af22 | 6391 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 6392 | while (len) { |
d4c19fe8 AL |
6393 | for (; isSPACE(*d) && len; --len, ++d) |
6394 | /**/; | |
8127e0e3 | 6395 | if (len) { |
d4c19fe8 | 6396 | SV *sv; |
f54cb97a | 6397 | const char *b = d; |
e476b1b5 | 6398 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
6399 | for (; !isSPACE(*d) && len; --len, ++d) { |
6400 | if (*d == ',') { | |
9014280d | 6401 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6402 | "Possible attempt to separate words with commas"); |
6403 | ++warned; | |
6404 | } | |
6405 | else if (*d == '#') { | |
9014280d | 6406 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6407 | "Possible attempt to put comments in qw() list"); |
6408 | ++warned; | |
6409 | } | |
6410 | } | |
6411 | } | |
6412 | else { | |
d4c19fe8 AL |
6413 | for (; !isSPACE(*d) && len; --len, ++d) |
6414 | /**/; | |
8127e0e3 | 6415 | } |
740cce10 | 6416 | sv = newSVpvn_utf8(b, d-b, DO_UTF8(PL_lex_stuff)); |
8127e0e3 | 6417 | words = append_elem(OP_LIST, words, |
7948272d | 6418 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 6419 | } |
6420 | } | |
8127e0e3 | 6421 | if (words) { |
cd81e915 | 6422 | start_force(PL_curforce); |
9ded7720 | 6423 | NEXTVAL_NEXTTOKE.opval = words; |
8127e0e3 GS |
6424 | force_next(THING); |
6425 | } | |
55497cff | 6426 | } |
37fd879b | 6427 | if (PL_lex_stuff) { |
8127e0e3 | 6428 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 6429 | PL_lex_stuff = NULL; |
37fd879b | 6430 | } |
3280af22 | 6431 | PL_expect = XTERM; |
8127e0e3 | 6432 | TOKEN('('); |
8990e307 | 6433 | |
79072805 | 6434 | case KEY_qq: |
5db06880 | 6435 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6436 | if (!s) |
d4c19fe8 | 6437 | missingterm(NULL); |
6154021b | 6438 | pl_yylval.ival = OP_STRINGIFY; |
3280af22 | 6439 | if (SvIVX(PL_lex_stuff) == '\'') |
45977657 | 6440 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
6441 | TERM(sublex_start()); |
6442 | ||
8782bef2 GB |
6443 | case KEY_qr: |
6444 | s = scan_pat(s,OP_QR); | |
6445 | TERM(sublex_start()); | |
6446 | ||
79072805 | 6447 | case KEY_qx: |
5db06880 | 6448 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6449 | if (!s) |
d4c19fe8 | 6450 | missingterm(NULL); |
9b201d7d | 6451 | readpipe_override(); |
79072805 LW |
6452 | TERM(sublex_start()); |
6453 | ||
6454 | case KEY_return: | |
6455 | OLDLOP(OP_RETURN); | |
6456 | ||
6457 | case KEY_require: | |
29595ff2 | 6458 | s = SKIPSPACE1(s); |
e759cc13 RGS |
6459 | if (isDIGIT(*s)) { |
6460 | s = force_version(s, FALSE); | |
a7cb1f99 | 6461 | } |
e759cc13 RGS |
6462 | else if (*s != 'v' || !isDIGIT(s[1]) |
6463 | || (s = force_version(s, TRUE), *s == 'v')) | |
6464 | { | |
a7cb1f99 GS |
6465 | *PL_tokenbuf = '\0'; |
6466 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 6467 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
da51bb9b | 6468 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), GV_ADD); |
a7cb1f99 GS |
6469 | else if (*s == '<') |
6470 | yyerror("<> should be quotes"); | |
6471 | } | |
a72a1c8b RGS |
6472 | if (orig_keyword == KEY_require) { |
6473 | orig_keyword = 0; | |
6154021b | 6474 | pl_yylval.ival = 1; |
a72a1c8b RGS |
6475 | } |
6476 | else | |
6154021b | 6477 | pl_yylval.ival = 0; |
a72a1c8b RGS |
6478 | PL_expect = XTERM; |
6479 | PL_bufptr = s; | |
6480 | PL_last_uni = PL_oldbufptr; | |
6481 | PL_last_lop_op = OP_REQUIRE; | |
6482 | s = skipspace(s); | |
6483 | return REPORT( (int)REQUIRE ); | |
79072805 LW |
6484 | |
6485 | case KEY_reset: | |
6486 | UNI(OP_RESET); | |
6487 | ||
6488 | case KEY_redo: | |
a0d0e21e | 6489 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6490 | LOOPX(OP_REDO); |
6491 | ||
6492 | case KEY_rename: | |
a0d0e21e | 6493 | LOP(OP_RENAME,XTERM); |
79072805 LW |
6494 | |
6495 | case KEY_rand: | |
6496 | UNI(OP_RAND); | |
6497 | ||
6498 | case KEY_rmdir: | |
6499 | UNI(OP_RMDIR); | |
6500 | ||
6501 | case KEY_rindex: | |
a0d0e21e | 6502 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
6503 | |
6504 | case KEY_read: | |
a0d0e21e | 6505 | LOP(OP_READ,XTERM); |
79072805 LW |
6506 | |
6507 | case KEY_readdir: | |
6508 | UNI(OP_READDIR); | |
6509 | ||
93a17b20 | 6510 | case KEY_readline: |
6f33ba73 | 6511 | UNIDOR(OP_READLINE); |
93a17b20 LW |
6512 | |
6513 | case KEY_readpipe: | |
0858480c | 6514 | UNIDOR(OP_BACKTICK); |
93a17b20 | 6515 | |
79072805 LW |
6516 | case KEY_rewinddir: |
6517 | UNI(OP_REWINDDIR); | |
6518 | ||
6519 | case KEY_recv: | |
a0d0e21e | 6520 | LOP(OP_RECV,XTERM); |
79072805 LW |
6521 | |
6522 | case KEY_reverse: | |
a0d0e21e | 6523 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
6524 | |
6525 | case KEY_readlink: | |
6f33ba73 | 6526 | UNIDOR(OP_READLINK); |
79072805 LW |
6527 | |
6528 | case KEY_ref: | |
6529 | UNI(OP_REF); | |
6530 | ||
6531 | case KEY_s: | |
6532 | s = scan_subst(s); | |
6154021b | 6533 | if (pl_yylval.opval) |
79072805 LW |
6534 | TERM(sublex_start()); |
6535 | else | |
6536 | TOKEN(1); /* force error */ | |
6537 | ||
0d863452 RH |
6538 | case KEY_say: |
6539 | checkcomma(s,PL_tokenbuf,"filehandle"); | |
6540 | LOP(OP_SAY,XREF); | |
6541 | ||
a0d0e21e LW |
6542 | case KEY_chomp: |
6543 | UNI(OP_CHOMP); | |
4e553d73 | 6544 | |
79072805 LW |
6545 | case KEY_scalar: |
6546 | UNI(OP_SCALAR); | |
6547 | ||
6548 | case KEY_select: | |
a0d0e21e | 6549 | LOP(OP_SELECT,XTERM); |
79072805 LW |
6550 | |
6551 | case KEY_seek: | |
a0d0e21e | 6552 | LOP(OP_SEEK,XTERM); |
79072805 LW |
6553 | |
6554 | case KEY_semctl: | |
a0d0e21e | 6555 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
6556 | |
6557 | case KEY_semget: | |
a0d0e21e | 6558 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
6559 | |
6560 | case KEY_semop: | |
a0d0e21e | 6561 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
6562 | |
6563 | case KEY_send: | |
a0d0e21e | 6564 | LOP(OP_SEND,XTERM); |
79072805 LW |
6565 | |
6566 | case KEY_setpgrp: | |
a0d0e21e | 6567 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
6568 | |
6569 | case KEY_setpriority: | |
a0d0e21e | 6570 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
6571 | |
6572 | case KEY_sethostent: | |
ff68c719 | 6573 | UNI(OP_SHOSTENT); |
79072805 LW |
6574 | |
6575 | case KEY_setnetent: | |
ff68c719 | 6576 | UNI(OP_SNETENT); |
79072805 LW |
6577 | |
6578 | case KEY_setservent: | |
ff68c719 | 6579 | UNI(OP_SSERVENT); |
79072805 LW |
6580 | |
6581 | case KEY_setprotoent: | |
ff68c719 | 6582 | UNI(OP_SPROTOENT); |
79072805 LW |
6583 | |
6584 | case KEY_setpwent: | |
6585 | FUN0(OP_SPWENT); | |
6586 | ||
6587 | case KEY_setgrent: | |
6588 | FUN0(OP_SGRENT); | |
6589 | ||
6590 | case KEY_seekdir: | |
a0d0e21e | 6591 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
6592 | |
6593 | case KEY_setsockopt: | |
a0d0e21e | 6594 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
6595 | |
6596 | case KEY_shift: | |
6f33ba73 | 6597 | UNIDOR(OP_SHIFT); |
79072805 LW |
6598 | |
6599 | case KEY_shmctl: | |
a0d0e21e | 6600 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
6601 | |
6602 | case KEY_shmget: | |
a0d0e21e | 6603 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
6604 | |
6605 | case KEY_shmread: | |
a0d0e21e | 6606 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
6607 | |
6608 | case KEY_shmwrite: | |
a0d0e21e | 6609 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
6610 | |
6611 | case KEY_shutdown: | |
a0d0e21e | 6612 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
6613 | |
6614 | case KEY_sin: | |
6615 | UNI(OP_SIN); | |
6616 | ||
6617 | case KEY_sleep: | |
6618 | UNI(OP_SLEEP); | |
6619 | ||
6620 | case KEY_socket: | |
a0d0e21e | 6621 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
6622 | |
6623 | case KEY_socketpair: | |
a0d0e21e | 6624 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
6625 | |
6626 | case KEY_sort: | |
3280af22 | 6627 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
29595ff2 | 6628 | s = SKIPSPACE1(s); |
79072805 | 6629 | if (*s == ';' || *s == ')') /* probably a close */ |
cea2e8a9 | 6630 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 6631 | PL_expect = XTERM; |
15f0808c | 6632 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 6633 | LOP(OP_SORT,XREF); |
79072805 LW |
6634 | |
6635 | case KEY_split: | |
a0d0e21e | 6636 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
6637 | |
6638 | case KEY_sprintf: | |
a0d0e21e | 6639 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
6640 | |
6641 | case KEY_splice: | |
a0d0e21e | 6642 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
6643 | |
6644 | case KEY_sqrt: | |
6645 | UNI(OP_SQRT); | |
6646 | ||
6647 | case KEY_srand: | |
6648 | UNI(OP_SRAND); | |
6649 | ||
6650 | case KEY_stat: | |
6651 | UNI(OP_STAT); | |
6652 | ||
6653 | case KEY_study: | |
79072805 LW |
6654 | UNI(OP_STUDY); |
6655 | ||
6656 | case KEY_substr: | |
a0d0e21e | 6657 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
6658 | |
6659 | case KEY_format: | |
6660 | case KEY_sub: | |
93a17b20 | 6661 | really_sub: |
09bef843 | 6662 | { |
3280af22 | 6663 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 6664 | SSize_t tboffset = 0; |
09bef843 | 6665 | expectation attrful; |
28cc6278 | 6666 | bool have_name, have_proto; |
f54cb97a | 6667 | const int key = tmp; |
09bef843 | 6668 | |
5db06880 NC |
6669 | #ifdef PERL_MAD |
6670 | SV *tmpwhite = 0; | |
6671 | ||
cd81e915 | 6672 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
5db06880 | 6673 | SV *subtoken = newSVpvn(tstart, s - tstart); |
cd81e915 | 6674 | PL_thistoken = 0; |
5db06880 NC |
6675 | |
6676 | d = s; | |
6677 | s = SKIPSPACE2(s,tmpwhite); | |
6678 | #else | |
09bef843 | 6679 | s = skipspace(s); |
5db06880 | 6680 | #endif |
09bef843 | 6681 | |
7e2040f0 | 6682 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
6683 | (*s == ':' && s[1] == ':')) |
6684 | { | |
5db06880 | 6685 | #ifdef PERL_MAD |
4f61fd4b | 6686 | SV *nametoke = NULL; |
5db06880 NC |
6687 | #endif |
6688 | ||
09bef843 SB |
6689 | PL_expect = XBLOCK; |
6690 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
6691 | /* remember buffer pos'n for later force_word */ |
6692 | tboffset = s - PL_oldbufptr; | |
09bef843 | 6693 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5db06880 NC |
6694 | #ifdef PERL_MAD |
6695 | if (PL_madskills) | |
6696 | nametoke = newSVpvn(s, d - s); | |
6697 | #endif | |
6502358f NC |
6698 | if (memchr(tmpbuf, ':', len)) |
6699 | sv_setpvn(PL_subname, tmpbuf, len); | |
09bef843 SB |
6700 | else { |
6701 | sv_setsv(PL_subname,PL_curstname); | |
396482e1 | 6702 | sv_catpvs(PL_subname,"::"); |
09bef843 SB |
6703 | sv_catpvn(PL_subname,tmpbuf,len); |
6704 | } | |
09bef843 | 6705 | have_name = TRUE; |
5db06880 NC |
6706 | |
6707 | #ifdef PERL_MAD | |
6708 | ||
6709 | start_force(0); | |
6710 | CURMAD('X', nametoke); | |
6711 | CURMAD('_', tmpwhite); | |
6712 | (void) force_word(PL_oldbufptr + tboffset, WORD, | |
6713 | FALSE, TRUE, TRUE); | |
6714 | ||
6715 | s = SKIPSPACE2(d,tmpwhite); | |
6716 | #else | |
6717 | s = skipspace(d); | |
6718 | #endif | |
09bef843 | 6719 | } |
463ee0b2 | 6720 | else { |
09bef843 SB |
6721 | if (key == KEY_my) |
6722 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
6723 | PL_expect = XTERMBLOCK; | |
6724 | attrful = XATTRTERM; | |
c69006e4 | 6725 | sv_setpvn(PL_subname,"?",1); |
09bef843 | 6726 | have_name = FALSE; |
463ee0b2 | 6727 | } |
4633a7c4 | 6728 | |
09bef843 SB |
6729 | if (key == KEY_format) { |
6730 | if (*s == '=') | |
6731 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5db06880 | 6732 | #ifdef PERL_MAD |
cd81e915 | 6733 | PL_thistoken = subtoken; |
5db06880 NC |
6734 | s = d; |
6735 | #else | |
09bef843 | 6736 | if (have_name) |
b1b65b59 JH |
6737 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6738 | FALSE, TRUE, TRUE); | |
5db06880 | 6739 | #endif |
09bef843 SB |
6740 | OPERATOR(FORMAT); |
6741 | } | |
79072805 | 6742 | |
09bef843 SB |
6743 | /* Look for a prototype */ |
6744 | if (*s == '(') { | |
d9f2850e RGS |
6745 | char *p; |
6746 | bool bad_proto = FALSE; | |
9e8d7757 RB |
6747 | bool in_brackets = FALSE; |
6748 | char greedy_proto = ' '; | |
6749 | bool proto_after_greedy_proto = FALSE; | |
6750 | bool must_be_last = FALSE; | |
6751 | bool underscore = FALSE; | |
aef2a98a | 6752 | bool seen_underscore = FALSE; |
d9f2850e | 6753 | const bool warnsyntax = ckWARN(WARN_SYNTAX); |
09bef843 | 6754 | |
5db06880 | 6755 | s = scan_str(s,!!PL_madskills,FALSE); |
37fd879b | 6756 | if (!s) |
09bef843 | 6757 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 6758 | /* strip spaces and check for bad characters */ |
09bef843 SB |
6759 | d = SvPVX(PL_lex_stuff); |
6760 | tmp = 0; | |
d9f2850e RGS |
6761 | for (p = d; *p; ++p) { |
6762 | if (!isSPACE(*p)) { | |
6763 | d[tmp++] = *p; | |
9e8d7757 RB |
6764 | |
6765 | if (warnsyntax) { | |
6766 | if (must_be_last) | |
6767 | proto_after_greedy_proto = TRUE; | |
6768 | if (!strchr("$@%*;[]&\\_", *p)) { | |
6769 | bad_proto = TRUE; | |
6770 | } | |
6771 | else { | |
6772 | if ( underscore ) { | |
6773 | if ( *p != ';' ) | |
6774 | bad_proto = TRUE; | |
6775 | underscore = FALSE; | |
6776 | } | |
6777 | if ( *p == '[' ) { | |
6778 | in_brackets = TRUE; | |
6779 | } | |
6780 | else if ( *p == ']' ) { | |
6781 | in_brackets = FALSE; | |
6782 | } | |
6783 | else if ( (*p == '@' || *p == '%') && | |
6784 | ( tmp < 2 || d[tmp-2] != '\\' ) && | |
6785 | !in_brackets ) { | |
6786 | must_be_last = TRUE; | |
6787 | greedy_proto = *p; | |
6788 | } | |
6789 | else if ( *p == '_' ) { | |
aef2a98a | 6790 | underscore = seen_underscore = TRUE; |
9e8d7757 RB |
6791 | } |
6792 | } | |
6793 | } | |
d37a9538 | 6794 | } |
09bef843 | 6795 | } |
d9f2850e | 6796 | d[tmp] = '\0'; |
9e8d7757 RB |
6797 | if (proto_after_greedy_proto) |
6798 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
6799 | "Prototype after '%c' for %"SVf" : %s", | |
6800 | greedy_proto, SVfARG(PL_subname), d); | |
d9f2850e RGS |
6801 | if (bad_proto) |
6802 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
aef2a98a RGS |
6803 | "Illegal character %sin prototype for %"SVf" : %s", |
6804 | seen_underscore ? "after '_' " : "", | |
be2597df | 6805 | SVfARG(PL_subname), d); |
b162af07 | 6806 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 6807 | have_proto = TRUE; |
68dc0745 | 6808 | |
5db06880 NC |
6809 | #ifdef PERL_MAD |
6810 | start_force(0); | |
cd81e915 | 6811 | CURMAD('q', PL_thisopen); |
5db06880 | 6812 | CURMAD('_', tmpwhite); |
cd81e915 NC |
6813 | CURMAD('=', PL_thisstuff); |
6814 | CURMAD('Q', PL_thisclose); | |
5db06880 NC |
6815 | NEXTVAL_NEXTTOKE.opval = |
6816 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
1a9a51d4 | 6817 | PL_lex_stuff = NULL; |
5db06880 NC |
6818 | force_next(THING); |
6819 | ||
6820 | s = SKIPSPACE2(s,tmpwhite); | |
6821 | #else | |
09bef843 | 6822 | s = skipspace(s); |
5db06880 | 6823 | #endif |
4633a7c4 | 6824 | } |
09bef843 SB |
6825 | else |
6826 | have_proto = FALSE; | |
6827 | ||
6828 | if (*s == ':' && s[1] != ':') | |
6829 | PL_expect = attrful; | |
8e742a20 MHM |
6830 | else if (*s != '{' && key == KEY_sub) { |
6831 | if (!have_name) | |
6832 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
6833 | else if (*s != ';') | |
be2597df | 6834 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, SVfARG(PL_subname)); |
8e742a20 | 6835 | } |
09bef843 | 6836 | |
5db06880 NC |
6837 | #ifdef PERL_MAD |
6838 | start_force(0); | |
6839 | if (tmpwhite) { | |
6840 | if (PL_madskills) | |
6b29d1f5 | 6841 | curmad('^', newSVpvs("")); |
5db06880 NC |
6842 | CURMAD('_', tmpwhite); |
6843 | } | |
6844 | force_next(0); | |
6845 | ||
cd81e915 | 6846 | PL_thistoken = subtoken; |
5db06880 | 6847 | #else |
09bef843 | 6848 | if (have_proto) { |
9ded7720 | 6849 | NEXTVAL_NEXTTOKE.opval = |
b1b65b59 | 6850 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); |
a0714e2c | 6851 | PL_lex_stuff = NULL; |
09bef843 | 6852 | force_next(THING); |
68dc0745 | 6853 | } |
5db06880 | 6854 | #endif |
09bef843 | 6855 | if (!have_name) { |
49a54bbe NC |
6856 | if (PL_curstash) |
6857 | sv_setpvs(PL_subname, "__ANON__"); | |
6858 | else | |
6859 | sv_setpvs(PL_subname, "__ANON__::__ANON__"); | |
09bef843 | 6860 | TOKEN(ANONSUB); |
4633a7c4 | 6861 | } |
5db06880 | 6862 | #ifndef PERL_MAD |
b1b65b59 JH |
6863 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6864 | FALSE, TRUE, TRUE); | |
5db06880 | 6865 | #endif |
09bef843 SB |
6866 | if (key == KEY_my) |
6867 | TOKEN(MYSUB); | |
6868 | TOKEN(SUB); | |
4633a7c4 | 6869 | } |
79072805 LW |
6870 | |
6871 | case KEY_system: | |
a0d0e21e | 6872 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
6873 | |
6874 | case KEY_symlink: | |
a0d0e21e | 6875 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
6876 | |
6877 | case KEY_syscall: | |
a0d0e21e | 6878 | LOP(OP_SYSCALL,XTERM); |
79072805 | 6879 | |
c07a80fd | 6880 | case KEY_sysopen: |
6881 | LOP(OP_SYSOPEN,XTERM); | |
6882 | ||
137443ea | 6883 | case KEY_sysseek: |
6884 | LOP(OP_SYSSEEK,XTERM); | |
6885 | ||
79072805 | 6886 | case KEY_sysread: |
a0d0e21e | 6887 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
6888 | |
6889 | case KEY_syswrite: | |
a0d0e21e | 6890 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
6891 | |
6892 | case KEY_tr: | |
6893 | s = scan_trans(s); | |
6894 | TERM(sublex_start()); | |
6895 | ||
6896 | case KEY_tell: | |
6897 | UNI(OP_TELL); | |
6898 | ||
6899 | case KEY_telldir: | |
6900 | UNI(OP_TELLDIR); | |
6901 | ||
463ee0b2 | 6902 | case KEY_tie: |
a0d0e21e | 6903 | LOP(OP_TIE,XTERM); |
463ee0b2 | 6904 | |
c07a80fd | 6905 | case KEY_tied: |
6906 | UNI(OP_TIED); | |
6907 | ||
79072805 LW |
6908 | case KEY_time: |
6909 | FUN0(OP_TIME); | |
6910 | ||
6911 | case KEY_times: | |
6912 | FUN0(OP_TMS); | |
6913 | ||
6914 | case KEY_truncate: | |
a0d0e21e | 6915 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
6916 | |
6917 | case KEY_uc: | |
6918 | UNI(OP_UC); | |
6919 | ||
6920 | case KEY_ucfirst: | |
6921 | UNI(OP_UCFIRST); | |
6922 | ||
463ee0b2 LW |
6923 | case KEY_untie: |
6924 | UNI(OP_UNTIE); | |
6925 | ||
79072805 | 6926 | case KEY_until: |
6154021b | 6927 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6928 | OPERATOR(UNTIL); |
6929 | ||
6930 | case KEY_unless: | |
6154021b | 6931 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6932 | OPERATOR(UNLESS); |
6933 | ||
6934 | case KEY_unlink: | |
a0d0e21e | 6935 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
6936 | |
6937 | case KEY_undef: | |
6f33ba73 | 6938 | UNIDOR(OP_UNDEF); |
79072805 LW |
6939 | |
6940 | case KEY_unpack: | |
a0d0e21e | 6941 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
6942 | |
6943 | case KEY_utime: | |
a0d0e21e | 6944 | LOP(OP_UTIME,XTERM); |
79072805 LW |
6945 | |
6946 | case KEY_umask: | |
6f33ba73 | 6947 | UNIDOR(OP_UMASK); |
79072805 LW |
6948 | |
6949 | case KEY_unshift: | |
a0d0e21e LW |
6950 | LOP(OP_UNSHIFT,XTERM); |
6951 | ||
6952 | case KEY_use: | |
468aa647 | 6953 | s = tokenize_use(1, s); |
a0d0e21e | 6954 | OPERATOR(USE); |
79072805 LW |
6955 | |
6956 | case KEY_values: | |
6957 | UNI(OP_VALUES); | |
6958 | ||
6959 | case KEY_vec: | |
a0d0e21e | 6960 | LOP(OP_VEC,XTERM); |
79072805 | 6961 | |
0d863452 | 6962 | case KEY_when: |
6154021b | 6963 | pl_yylval.ival = CopLINE(PL_curcop); |
0d863452 RH |
6964 | OPERATOR(WHEN); |
6965 | ||
79072805 | 6966 | case KEY_while: |
6154021b | 6967 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6968 | OPERATOR(WHILE); |
6969 | ||
6970 | case KEY_warn: | |
3280af22 | 6971 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 6972 | LOP(OP_WARN,XTERM); |
79072805 LW |
6973 | |
6974 | case KEY_wait: | |
6975 | FUN0(OP_WAIT); | |
6976 | ||
6977 | case KEY_waitpid: | |
a0d0e21e | 6978 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
6979 | |
6980 | case KEY_wantarray: | |
6981 | FUN0(OP_WANTARRAY); | |
6982 | ||
6983 | case KEY_write: | |
9d116dd7 JH |
6984 | #ifdef EBCDIC |
6985 | { | |
df3728a2 JH |
6986 | char ctl_l[2]; |
6987 | ctl_l[0] = toCTRL('L'); | |
6988 | ctl_l[1] = '\0'; | |
fafc274c | 6989 | gv_fetchpvn_flags(ctl_l, 1, GV_ADD|GV_NOTQUAL, SVt_PV); |
9d116dd7 JH |
6990 | } |
6991 | #else | |
fafc274c NC |
6992 | /* Make sure $^L is defined */ |
6993 | gv_fetchpvs("\f", GV_ADD|GV_NOTQUAL, SVt_PV); | |
9d116dd7 | 6994 | #endif |
79072805 LW |
6995 | UNI(OP_ENTERWRITE); |
6996 | ||
6997 | case KEY_x: | |
3280af22 | 6998 | if (PL_expect == XOPERATOR) |
79072805 LW |
6999 | Mop(OP_REPEAT); |
7000 | check_uni(); | |
7001 | goto just_a_word; | |
7002 | ||
a0d0e21e | 7003 | case KEY_xor: |
6154021b | 7004 | pl_yylval.ival = OP_XOR; |
a0d0e21e LW |
7005 | OPERATOR(OROP); |
7006 | ||
79072805 LW |
7007 | case KEY_y: |
7008 | s = scan_trans(s); | |
7009 | TERM(sublex_start()); | |
7010 | } | |
49dc05e3 | 7011 | }} |
79072805 | 7012 | } |
bf4acbe4 GS |
7013 | #ifdef __SC__ |
7014 | #pragma segment Main | |
7015 | #endif | |
79072805 | 7016 | |
e930465f JH |
7017 | static int |
7018 | S_pending_ident(pTHX) | |
8eceec63 | 7019 | { |
97aff369 | 7020 | dVAR; |
8eceec63 | 7021 | register char *d; |
bbd11bfc | 7022 | PADOFFSET tmp = 0; |
8eceec63 SC |
7023 | /* pit holds the identifier we read and pending_ident is reset */ |
7024 | char pit = PL_pending_ident; | |
9bde8eb0 NC |
7025 | const STRLEN tokenbuf_len = strlen(PL_tokenbuf); |
7026 | /* All routes through this function want to know if there is a colon. */ | |
c099d646 | 7027 | const char *const has_colon = (const char*) memchr (PL_tokenbuf, ':', tokenbuf_len); |
8eceec63 SC |
7028 | PL_pending_ident = 0; |
7029 | ||
cd81e915 | 7030 | /* PL_realtokenstart = realtokenend = PL_bufptr - SvPVX(PL_linestr); */ |
8eceec63 | 7031 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 7032 | "### Pending identifier '%s'\n", PL_tokenbuf); }); |
8eceec63 SC |
7033 | |
7034 | /* if we're in a my(), we can't allow dynamics here. | |
7035 | $foo'bar has already been turned into $foo::bar, so | |
7036 | just check for colons. | |
7037 | ||
7038 | if it's a legal name, the OP is a PADANY. | |
7039 | */ | |
7040 | if (PL_in_my) { | |
7041 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
9bde8eb0 | 7042 | if (has_colon) |
8eceec63 SC |
7043 | yyerror(Perl_form(aTHX_ "No package name allowed for " |
7044 | "variable %s in \"our\"", | |
7045 | PL_tokenbuf)); | |
dd2155a4 | 7046 | tmp = allocmy(PL_tokenbuf); |
8eceec63 SC |
7047 | } |
7048 | else { | |
9bde8eb0 | 7049 | if (has_colon) |
952306ac RGS |
7050 | yyerror(Perl_form(aTHX_ PL_no_myglob, |
7051 | PL_in_my == KEY_my ? "my" : "state", PL_tokenbuf)); | |
8eceec63 | 7052 | |
6154021b RGS |
7053 | pl_yylval.opval = newOP(OP_PADANY, 0); |
7054 | pl_yylval.opval->op_targ = allocmy(PL_tokenbuf); | |
8eceec63 SC |
7055 | return PRIVATEREF; |
7056 | } | |
7057 | } | |
7058 | ||
7059 | /* | |
7060 | build the ops for accesses to a my() variable. | |
7061 | ||
7062 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
7063 | then used in a comparison. This catches most, but not | |
7064 | all cases. For instance, it catches | |
7065 | sort { my($a); $a <=> $b } | |
7066 | but not | |
7067 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
7068 | (although why you'd do that is anyone's guess). | |
7069 | */ | |
7070 | ||
9bde8eb0 | 7071 | if (!has_colon) { |
8716503d DM |
7072 | if (!PL_in_my) |
7073 | tmp = pad_findmy(PL_tokenbuf); | |
7074 | if (tmp != NOT_IN_PAD) { | |
8eceec63 | 7075 | /* might be an "our" variable" */ |
00b1698f | 7076 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
8eceec63 | 7077 | /* build ops for a bareword */ |
b64e5050 AL |
7078 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
7079 | HEK * const stashname = HvNAME_HEK(stash); | |
7080 | SV * const sym = newSVhek(stashname); | |
396482e1 | 7081 | sv_catpvs(sym, "::"); |
9bde8eb0 | 7082 | sv_catpvn(sym, PL_tokenbuf+1, tokenbuf_len - 1); |
6154021b RGS |
7083 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); |
7084 | pl_yylval.opval->op_private = OPpCONST_ENTERED; | |
7a5fd60d | 7085 | gv_fetchsv(sym, |
8eceec63 SC |
7086 | (PL_in_eval |
7087 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 7088 | : GV_ADDMULTI |
8eceec63 SC |
7089 | ), |
7090 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
7091 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
7092 | : SVt_PVHV)); | |
7093 | return WORD; | |
7094 | } | |
7095 | ||
7096 | /* if it's a sort block and they're naming $a or $b */ | |
7097 | if (PL_last_lop_op == OP_SORT && | |
7098 | PL_tokenbuf[0] == '$' && | |
7099 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
7100 | && !PL_tokenbuf[2]) | |
7101 | { | |
7102 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
7103 | d < PL_bufend && *d != '\n'; | |
7104 | d++) | |
7105 | { | |
7106 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
7107 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
7108 | PL_tokenbuf); | |
7109 | } | |
7110 | } | |
7111 | } | |
7112 | ||
6154021b RGS |
7113 | pl_yylval.opval = newOP(OP_PADANY, 0); |
7114 | pl_yylval.opval->op_targ = tmp; | |
8eceec63 SC |
7115 | return PRIVATEREF; |
7116 | } | |
7117 | } | |
7118 | ||
7119 | /* | |
7120 | Whine if they've said @foo in a doublequoted string, | |
7121 | and @foo isn't a variable we can find in the symbol | |
7122 | table. | |
7123 | */ | |
7124 | if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
9bde8eb0 NC |
7125 | GV *const gv = gv_fetchpvn_flags(PL_tokenbuf + 1, tokenbuf_len - 1, 0, |
7126 | SVt_PVAV); | |
8eceec63 | 7127 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
e879d94f RGS |
7128 | && ckWARN(WARN_AMBIGUOUS) |
7129 | /* DO NOT warn for @- and @+ */ | |
7130 | && !( PL_tokenbuf[2] == '\0' && | |
7131 | ( PL_tokenbuf[1] == '-' || PL_tokenbuf[1] == '+' )) | |
7132 | ) | |
8eceec63 SC |
7133 | { |
7134 | /* Downgraded from fatal to warning 20000522 mjd */ | |
9014280d | 7135 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
8eceec63 SC |
7136 | "Possible unintended interpolation of %s in string", |
7137 | PL_tokenbuf); | |
7138 | } | |
7139 | } | |
7140 | ||
7141 | /* build ops for a bareword */ | |
6154021b | 7142 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpvn(PL_tokenbuf + 1, |
9bde8eb0 | 7143 | tokenbuf_len - 1)); |
6154021b | 7144 | pl_yylval.opval->op_private = OPpCONST_ENTERED; |
9bde8eb0 NC |
7145 | gv_fetchpvn_flags( |
7146 | PL_tokenbuf + 1, tokenbuf_len - 1, | |
d6069db2 RGS |
7147 | /* If the identifier refers to a stash, don't autovivify it. |
7148 | * Change 24660 had the side effect of causing symbol table | |
7149 | * hashes to always be defined, even if they were freshly | |
7150 | * created and the only reference in the entire program was | |
7151 | * the single statement with the defined %foo::bar:: test. | |
7152 | * It appears that all code in the wild doing this actually | |
7153 | * wants to know whether sub-packages have been loaded, so | |
7154 | * by avoiding auto-vivifying symbol tables, we ensure that | |
7155 | * defined %foo::bar:: continues to be false, and the existing | |
7156 | * tests still give the expected answers, even though what | |
7157 | * they're actually testing has now changed subtly. | |
7158 | */ | |
9bde8eb0 NC |
7159 | (*PL_tokenbuf == '%' |
7160 | && *(d = PL_tokenbuf + tokenbuf_len - 1) == ':' | |
7161 | && d[-1] == ':' | |
d6069db2 RGS |
7162 | ? 0 |
7163 | : PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD), | |
adc51b97 RGS |
7164 | ((PL_tokenbuf[0] == '$') ? SVt_PV |
7165 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
7166 | : SVt_PVHV)); | |
8eceec63 SC |
7167 | return WORD; |
7168 | } | |
7169 | ||
4c3bbe0f MHM |
7170 | /* |
7171 | * The following code was generated by perl_keyword.pl. | |
7172 | */ | |
e2e1dd5a | 7173 | |
79072805 | 7174 | I32 |
5458a98a | 7175 | Perl_keyword (pTHX_ const char *name, I32 len, bool all_keywords) |
4c3bbe0f | 7176 | { |
952306ac | 7177 | dVAR; |
7918f24d NC |
7178 | |
7179 | PERL_ARGS_ASSERT_KEYWORD; | |
7180 | ||
4c3bbe0f MHM |
7181 | switch (len) |
7182 | { | |
7183 | case 1: /* 5 tokens of length 1 */ | |
7184 | switch (name[0]) | |
e2e1dd5a | 7185 | { |
4c3bbe0f MHM |
7186 | case 'm': |
7187 | { /* m */ | |
7188 | return KEY_m; | |
7189 | } | |
7190 | ||
4c3bbe0f MHM |
7191 | case 'q': |
7192 | { /* q */ | |
7193 | return KEY_q; | |
7194 | } | |
7195 | ||
4c3bbe0f MHM |
7196 | case 's': |
7197 | { /* s */ | |
7198 | return KEY_s; | |
7199 | } | |
7200 | ||
4c3bbe0f MHM |
7201 | case 'x': |
7202 | { /* x */ | |
7203 | return -KEY_x; | |
7204 | } | |
7205 | ||
4c3bbe0f MHM |
7206 | case 'y': |
7207 | { /* y */ | |
7208 | return KEY_y; | |
7209 | } | |
7210 | ||
4c3bbe0f MHM |
7211 | default: |
7212 | goto unknown; | |
e2e1dd5a | 7213 | } |
4c3bbe0f MHM |
7214 | |
7215 | case 2: /* 18 tokens of length 2 */ | |
7216 | switch (name[0]) | |
e2e1dd5a | 7217 | { |
4c3bbe0f MHM |
7218 | case 'd': |
7219 | if (name[1] == 'o') | |
7220 | { /* do */ | |
7221 | return KEY_do; | |
7222 | } | |
7223 | ||
7224 | goto unknown; | |
7225 | ||
7226 | case 'e': | |
7227 | if (name[1] == 'q') | |
7228 | { /* eq */ | |
7229 | return -KEY_eq; | |
7230 | } | |
7231 | ||
7232 | goto unknown; | |
7233 | ||
7234 | case 'g': | |
7235 | switch (name[1]) | |
7236 | { | |
7237 | case 'e': | |
7238 | { /* ge */ | |
7239 | return -KEY_ge; | |
7240 | } | |
7241 | ||
4c3bbe0f MHM |
7242 | case 't': |
7243 | { /* gt */ | |
7244 | return -KEY_gt; | |
7245 | } | |
7246 | ||
4c3bbe0f MHM |
7247 | default: |
7248 | goto unknown; | |
7249 | } | |
7250 | ||
7251 | case 'i': | |
7252 | if (name[1] == 'f') | |
7253 | { /* if */ | |
7254 | return KEY_if; | |
7255 | } | |
7256 | ||
7257 | goto unknown; | |
7258 | ||
7259 | case 'l': | |
7260 | switch (name[1]) | |
7261 | { | |
7262 | case 'c': | |
7263 | { /* lc */ | |
7264 | return -KEY_lc; | |
7265 | } | |
7266 | ||
4c3bbe0f MHM |
7267 | case 'e': |
7268 | { /* le */ | |
7269 | return -KEY_le; | |
7270 | } | |
7271 | ||
4c3bbe0f MHM |
7272 | case 't': |
7273 | { /* lt */ | |
7274 | return -KEY_lt; | |
7275 | } | |
7276 | ||
4c3bbe0f MHM |
7277 | default: |
7278 | goto unknown; | |
7279 | } | |
7280 | ||
7281 | case 'm': | |
7282 | if (name[1] == 'y') | |
7283 | { /* my */ | |
7284 | return KEY_my; | |
7285 | } | |
7286 | ||
7287 | goto unknown; | |
7288 | ||
7289 | case 'n': | |
7290 | switch (name[1]) | |
7291 | { | |
7292 | case 'e': | |
7293 | { /* ne */ | |
7294 | return -KEY_ne; | |
7295 | } | |
7296 | ||
4c3bbe0f MHM |
7297 | case 'o': |
7298 | { /* no */ | |
7299 | return KEY_no; | |
7300 | } | |
7301 | ||
4c3bbe0f MHM |
7302 | default: |
7303 | goto unknown; | |
7304 | } | |
7305 | ||
7306 | case 'o': | |
7307 | if (name[1] == 'r') | |
7308 | { /* or */ | |
7309 | return -KEY_or; | |
7310 | } | |
7311 | ||
7312 | goto unknown; | |
7313 | ||
7314 | case 'q': | |
7315 | switch (name[1]) | |
7316 | { | |
7317 | case 'q': | |
7318 | { /* qq */ | |
7319 | return KEY_qq; | |
7320 | } | |
7321 | ||
4c3bbe0f MHM |
7322 | case 'r': |
7323 | { /* qr */ | |
7324 | return KEY_qr; | |
7325 | } | |
7326 | ||
4c3bbe0f MHM |
7327 | case 'w': |
7328 | { /* qw */ | |
7329 | return KEY_qw; | |
7330 | } | |
7331 | ||
4c3bbe0f MHM |
7332 | case 'x': |
7333 | { /* qx */ | |
7334 | return KEY_qx; | |
7335 | } | |
7336 | ||
4c3bbe0f MHM |
7337 | default: |
7338 | goto unknown; | |
7339 | } | |
7340 | ||
7341 | case 't': | |
7342 | if (name[1] == 'r') | |
7343 | { /* tr */ | |
7344 | return KEY_tr; | |
7345 | } | |
7346 | ||
7347 | goto unknown; | |
7348 | ||
7349 | case 'u': | |
7350 | if (name[1] == 'c') | |
7351 | { /* uc */ | |
7352 | return -KEY_uc; | |
7353 | } | |
7354 | ||
7355 | goto unknown; | |
7356 | ||
7357 | default: | |
7358 | goto unknown; | |
e2e1dd5a | 7359 | } |
4c3bbe0f | 7360 | |
0d863452 | 7361 | case 3: /* 29 tokens of length 3 */ |
4c3bbe0f | 7362 | switch (name[0]) |
e2e1dd5a | 7363 | { |
4c3bbe0f MHM |
7364 | case 'E': |
7365 | if (name[1] == 'N' && | |
7366 | name[2] == 'D') | |
7367 | { /* END */ | |
7368 | return KEY_END; | |
7369 | } | |
7370 | ||
7371 | goto unknown; | |
7372 | ||
7373 | case 'a': | |
7374 | switch (name[1]) | |
7375 | { | |
7376 | case 'b': | |
7377 | if (name[2] == 's') | |
7378 | { /* abs */ | |
7379 | return -KEY_abs; | |
7380 | } | |
7381 | ||
7382 | goto unknown; | |
7383 | ||
7384 | case 'n': | |
7385 | if (name[2] == 'd') | |
7386 | { /* and */ | |
7387 | return -KEY_and; | |
7388 | } | |
7389 | ||
7390 | goto unknown; | |
7391 | ||
7392 | default: | |
7393 | goto unknown; | |
7394 | } | |
7395 | ||
7396 | case 'c': | |
7397 | switch (name[1]) | |
7398 | { | |
7399 | case 'h': | |
7400 | if (name[2] == 'r') | |
7401 | { /* chr */ | |
7402 | return -KEY_chr; | |
7403 | } | |
7404 | ||
7405 | goto unknown; | |
7406 | ||
7407 | case 'm': | |
7408 | if (name[2] == 'p') | |
7409 | { /* cmp */ | |
7410 | return -KEY_cmp; | |
7411 | } | |
7412 | ||
7413 | goto unknown; | |
7414 | ||
7415 | case 'o': | |
7416 | if (name[2] == 's') | |
7417 | { /* cos */ | |
7418 | return -KEY_cos; | |
7419 | } | |
7420 | ||
7421 | goto unknown; | |
7422 | ||
7423 | default: | |
7424 | goto unknown; | |
7425 | } | |
7426 | ||
7427 | case 'd': | |
7428 | if (name[1] == 'i' && | |
7429 | name[2] == 'e') | |
7430 | { /* die */ | |
7431 | return -KEY_die; | |
7432 | } | |
7433 | ||
7434 | goto unknown; | |
7435 | ||
7436 | case 'e': | |
7437 | switch (name[1]) | |
7438 | { | |
7439 | case 'o': | |
7440 | if (name[2] == 'f') | |
7441 | { /* eof */ | |
7442 | return -KEY_eof; | |
7443 | } | |
7444 | ||
7445 | goto unknown; | |
7446 | ||
4c3bbe0f MHM |
7447 | case 'x': |
7448 | if (name[2] == 'p') | |
7449 | { /* exp */ | |
7450 | return -KEY_exp; | |
7451 | } | |
7452 | ||
7453 | goto unknown; | |
7454 | ||
7455 | default: | |
7456 | goto unknown; | |
7457 | } | |
7458 | ||
7459 | case 'f': | |
7460 | if (name[1] == 'o' && | |
7461 | name[2] == 'r') | |
7462 | { /* for */ | |
7463 | return KEY_for; | |
7464 | } | |
7465 | ||
7466 | goto unknown; | |
7467 | ||
7468 | case 'h': | |
7469 | if (name[1] == 'e' && | |
7470 | name[2] == 'x') | |
7471 | { /* hex */ | |
7472 | return -KEY_hex; | |
7473 | } | |
7474 | ||
7475 | goto unknown; | |
7476 | ||
7477 | case 'i': | |
7478 | if (name[1] == 'n' && | |
7479 | name[2] == 't') | |
7480 | { /* int */ | |
7481 | return -KEY_int; | |
7482 | } | |
7483 | ||
7484 | goto unknown; | |
7485 | ||
7486 | case 'l': | |
7487 | if (name[1] == 'o' && | |
7488 | name[2] == 'g') | |
7489 | { /* log */ | |
7490 | return -KEY_log; | |
7491 | } | |
7492 | ||
7493 | goto unknown; | |
7494 | ||
7495 | case 'm': | |
7496 | if (name[1] == 'a' && | |
7497 | name[2] == 'p') | |
7498 | { /* map */ | |
7499 | return KEY_map; | |
7500 | } | |
7501 | ||
7502 | goto unknown; | |
7503 | ||
7504 | case 'n': | |
7505 | if (name[1] == 'o' && | |
7506 | name[2] == 't') | |
7507 | { /* not */ | |
7508 | return -KEY_not; | |
7509 | } | |
7510 | ||
7511 | goto unknown; | |
7512 | ||
7513 | case 'o': | |
7514 | switch (name[1]) | |
7515 | { | |
7516 | case 'c': | |
7517 | if (name[2] == 't') | |
7518 | { /* oct */ | |
7519 | return -KEY_oct; | |
7520 | } | |
7521 | ||
7522 | goto unknown; | |
7523 | ||
7524 | case 'r': | |
7525 | if (name[2] == 'd') | |
7526 | { /* ord */ | |
7527 | return -KEY_ord; | |
7528 | } | |
7529 | ||
7530 | goto unknown; | |
7531 | ||
7532 | case 'u': | |
7533 | if (name[2] == 'r') | |
7534 | { /* our */ | |
7535 | return KEY_our; | |
7536 | } | |
7537 | ||
7538 | goto unknown; | |
7539 | ||
7540 | default: | |
7541 | goto unknown; | |
7542 | } | |
7543 | ||
7544 | case 'p': | |
7545 | if (name[1] == 'o') | |
7546 | { | |
7547 | switch (name[2]) | |
7548 | { | |
7549 | case 'p': | |
7550 | { /* pop */ | |
7551 | return -KEY_pop; | |
7552 | } | |
7553 | ||
4c3bbe0f MHM |
7554 | case 's': |
7555 | { /* pos */ | |
7556 | return KEY_pos; | |
7557 | } | |
7558 | ||
4c3bbe0f MHM |
7559 | default: |
7560 | goto unknown; | |
7561 | } | |
7562 | } | |
7563 | ||
7564 | goto unknown; | |
7565 | ||
7566 | case 'r': | |
7567 | if (name[1] == 'e' && | |
7568 | name[2] == 'f') | |
7569 | { /* ref */ | |
7570 | return -KEY_ref; | |
7571 | } | |
7572 | ||
7573 | goto unknown; | |
7574 | ||
7575 | case 's': | |
7576 | switch (name[1]) | |
7577 | { | |
0d863452 RH |
7578 | case 'a': |
7579 | if (name[2] == 'y') | |
7580 | { /* say */ | |
e3e804c9 | 7581 | return (all_keywords || FEATURE_IS_ENABLED("say") ? KEY_say : 0); |
0d863452 RH |
7582 | } |
7583 | ||
7584 | goto unknown; | |
7585 | ||
4c3bbe0f MHM |
7586 | case 'i': |
7587 | if (name[2] == 'n') | |
7588 | { /* sin */ | |
7589 | return -KEY_sin; | |
7590 | } | |
7591 | ||
7592 | goto unknown; | |
7593 | ||
7594 | case 'u': | |
7595 | if (name[2] == 'b') | |
7596 | { /* sub */ | |
7597 | return KEY_sub; | |
7598 | } | |
7599 | ||
7600 | goto unknown; | |
7601 | ||
7602 | default: | |
7603 | goto unknown; | |
7604 | } | |
7605 | ||
7606 | case 't': | |
7607 | if (name[1] == 'i' && | |
7608 | name[2] == 'e') | |
7609 | { /* tie */ | |
7610 | return KEY_tie; | |
7611 | } | |
7612 | ||
7613 | goto unknown; | |
7614 | ||
7615 | case 'u': | |
7616 | if (name[1] == 's' && | |
7617 | name[2] == 'e') | |
7618 | { /* use */ | |
7619 | return KEY_use; | |
7620 | } | |
7621 | ||
7622 | goto unknown; | |
7623 | ||
7624 | case 'v': | |
7625 | if (name[1] == 'e' && | |
7626 | name[2] == 'c') | |
7627 | { /* vec */ | |
7628 | return -KEY_vec; | |
7629 | } | |
7630 | ||
7631 | goto unknown; | |
7632 | ||
7633 | case 'x': | |
7634 | if (name[1] == 'o' && | |
7635 | name[2] == 'r') | |
7636 | { /* xor */ | |
7637 | return -KEY_xor; | |
7638 | } | |
7639 | ||
7640 | goto unknown; | |
7641 | ||
7642 | default: | |
7643 | goto unknown; | |
e2e1dd5a | 7644 | } |
4c3bbe0f | 7645 | |
0d863452 | 7646 | case 4: /* 41 tokens of length 4 */ |
4c3bbe0f | 7647 | switch (name[0]) |
e2e1dd5a | 7648 | { |
4c3bbe0f MHM |
7649 | case 'C': |
7650 | if (name[1] == 'O' && | |
7651 | name[2] == 'R' && | |
7652 | name[3] == 'E') | |
7653 | { /* CORE */ | |
7654 | return -KEY_CORE; | |
7655 | } | |
7656 | ||
7657 | goto unknown; | |
7658 | ||
7659 | case 'I': | |
7660 | if (name[1] == 'N' && | |
7661 | name[2] == 'I' && | |
7662 | name[3] == 'T') | |
7663 | { /* INIT */ | |
7664 | return KEY_INIT; | |
7665 | } | |
7666 | ||
7667 | goto unknown; | |
7668 | ||
7669 | case 'b': | |
7670 | if (name[1] == 'i' && | |
7671 | name[2] == 'n' && | |
7672 | name[3] == 'd') | |
7673 | { /* bind */ | |
7674 | return -KEY_bind; | |
7675 | } | |
7676 | ||
7677 | goto unknown; | |
7678 | ||
7679 | case 'c': | |
7680 | if (name[1] == 'h' && | |
7681 | name[2] == 'o' && | |
7682 | name[3] == 'p') | |
7683 | { /* chop */ | |
7684 | return -KEY_chop; | |
7685 | } | |
7686 | ||
7687 | goto unknown; | |
7688 | ||
7689 | case 'd': | |
7690 | if (name[1] == 'u' && | |
7691 | name[2] == 'm' && | |
7692 | name[3] == 'p') | |
7693 | { /* dump */ | |
7694 | return -KEY_dump; | |
7695 | } | |
7696 | ||
7697 | goto unknown; | |
7698 | ||
7699 | case 'e': | |
7700 | switch (name[1]) | |
7701 | { | |
7702 | case 'a': | |
7703 | if (name[2] == 'c' && | |
7704 | name[3] == 'h') | |
7705 | { /* each */ | |
7706 | return -KEY_each; | |
7707 | } | |
7708 | ||
7709 | goto unknown; | |
7710 | ||
7711 | case 'l': | |
7712 | if (name[2] == 's' && | |
7713 | name[3] == 'e') | |
7714 | { /* else */ | |
7715 | return KEY_else; | |
7716 | } | |
7717 | ||
7718 | goto unknown; | |
7719 | ||
7720 | case 'v': | |
7721 | if (name[2] == 'a' && | |
7722 | name[3] == 'l') | |
7723 | { /* eval */ | |
7724 | return KEY_eval; | |
7725 | } | |
7726 | ||
7727 | goto unknown; | |
7728 | ||
7729 | case 'x': | |
7730 | switch (name[2]) | |
7731 | { | |
7732 | case 'e': | |
7733 | if (name[3] == 'c') | |
7734 | { /* exec */ | |
7735 | return -KEY_exec; | |
7736 | } | |
7737 | ||
7738 | goto unknown; | |
7739 | ||
7740 | case 'i': | |
7741 | if (name[3] == 't') | |
7742 | { /* exit */ | |
7743 | return -KEY_exit; | |
7744 | } | |
7745 | ||
7746 | goto unknown; | |
7747 | ||
7748 | default: | |
7749 | goto unknown; | |
7750 | } | |
7751 | ||
7752 | default: | |
7753 | goto unknown; | |
7754 | } | |
7755 | ||
7756 | case 'f': | |
7757 | if (name[1] == 'o' && | |
7758 | name[2] == 'r' && | |
7759 | name[3] == 'k') | |
7760 | { /* fork */ | |
7761 | return -KEY_fork; | |
7762 | } | |
7763 | ||
7764 | goto unknown; | |
7765 | ||
7766 | case 'g': | |
7767 | switch (name[1]) | |
7768 | { | |
7769 | case 'e': | |
7770 | if (name[2] == 't' && | |
7771 | name[3] == 'c') | |
7772 | { /* getc */ | |
7773 | return -KEY_getc; | |
7774 | } | |
7775 | ||
7776 | goto unknown; | |
7777 | ||
7778 | case 'l': | |
7779 | if (name[2] == 'o' && | |
7780 | name[3] == 'b') | |
7781 | { /* glob */ | |
7782 | return KEY_glob; | |
7783 | } | |
7784 | ||
7785 | goto unknown; | |
7786 | ||
7787 | case 'o': | |
7788 | if (name[2] == 't' && | |
7789 | name[3] == 'o') | |
7790 | { /* goto */ | |
7791 | return KEY_goto; | |
7792 | } | |
7793 | ||
7794 | goto unknown; | |
7795 | ||
7796 | case 'r': | |
7797 | if (name[2] == 'e' && | |
7798 | name[3] == 'p') | |
7799 | { /* grep */ | |
7800 | return KEY_grep; | |
7801 | } | |
7802 | ||
7803 | goto unknown; | |
7804 | ||
7805 | default: | |
7806 | goto unknown; | |
7807 | } | |
7808 | ||
7809 | case 'j': | |
7810 | if (name[1] == 'o' && | |
7811 | name[2] == 'i' && | |
7812 | name[3] == 'n') | |
7813 | { /* join */ | |
7814 | return -KEY_join; | |
7815 | } | |
7816 | ||
7817 | goto unknown; | |
7818 | ||
7819 | case 'k': | |
7820 | switch (name[1]) | |
7821 | { | |
7822 | case 'e': | |
7823 | if (name[2] == 'y' && | |
7824 | name[3] == 's') | |
7825 | { /* keys */ | |
7826 | return -KEY_keys; | |
7827 | } | |
7828 | ||
7829 | goto unknown; | |
7830 | ||
7831 | case 'i': | |
7832 | if (name[2] == 'l' && | |
7833 | name[3] == 'l') | |
7834 | { /* kill */ | |
7835 | return -KEY_kill; | |
7836 | } | |
7837 | ||
7838 | goto unknown; | |
7839 | ||
7840 | default: | |
7841 | goto unknown; | |
7842 | } | |
7843 | ||
7844 | case 'l': | |
7845 | switch (name[1]) | |
7846 | { | |
7847 | case 'a': | |
7848 | if (name[2] == 's' && | |
7849 | name[3] == 't') | |
7850 | { /* last */ | |
7851 | return KEY_last; | |
7852 | } | |
7853 | ||
7854 | goto unknown; | |
7855 | ||
7856 | case 'i': | |
7857 | if (name[2] == 'n' && | |
7858 | name[3] == 'k') | |
7859 | { /* link */ | |
7860 | return -KEY_link; | |
7861 | } | |
7862 | ||
7863 | goto unknown; | |
7864 | ||
7865 | case 'o': | |
7866 | if (name[2] == 'c' && | |
7867 | name[3] == 'k') | |
7868 | { /* lock */ | |
7869 | return -KEY_lock; | |
7870 | } | |
7871 | ||
7872 | goto unknown; | |
7873 | ||
7874 | default: | |
7875 | goto unknown; | |
7876 | } | |
7877 | ||
7878 | case 'n': | |
7879 | if (name[1] == 'e' && | |
7880 | name[2] == 'x' && | |
7881 | name[3] == 't') | |
7882 | { /* next */ | |
7883 | return KEY_next; | |
7884 | } | |
7885 | ||
7886 | goto unknown; | |
7887 | ||
7888 | case 'o': | |
7889 | if (name[1] == 'p' && | |
7890 | name[2] == 'e' && | |
7891 | name[3] == 'n') | |
7892 | { /* open */ | |
7893 | return -KEY_open; | |
7894 | } | |
7895 | ||
7896 | goto unknown; | |
7897 | ||
7898 | case 'p': | |
7899 | switch (name[1]) | |
7900 | { | |
7901 | case 'a': | |
7902 | if (name[2] == 'c' && | |
7903 | name[3] == 'k') | |
7904 | { /* pack */ | |
7905 | return -KEY_pack; | |
7906 | } | |
7907 | ||
7908 | goto unknown; | |
7909 | ||
7910 | case 'i': | |
7911 | if (name[2] == 'p' && | |
7912 | name[3] == 'e') | |
7913 | { /* pipe */ | |
7914 | return -KEY_pipe; | |
7915 | } | |
7916 | ||
7917 | goto unknown; | |
7918 | ||
7919 | case 'u': | |
7920 | if (name[2] == 's' && | |
7921 | name[3] == 'h') | |
7922 | { /* push */ | |
7923 | return -KEY_push; | |
7924 | } | |
7925 | ||
7926 | goto unknown; | |
7927 | ||
7928 | default: | |
7929 | goto unknown; | |
7930 | } | |
7931 | ||
7932 | case 'r': | |
7933 | switch (name[1]) | |
7934 | { | |
7935 | case 'a': | |
7936 | if (name[2] == 'n' && | |
7937 | name[3] == 'd') | |
7938 | { /* rand */ | |
7939 | return -KEY_rand; | |
7940 | } | |
7941 | ||
7942 | goto unknown; | |
7943 | ||
7944 | case 'e': | |
7945 | switch (name[2]) | |
7946 | { | |
7947 | case 'a': | |
7948 | if (name[3] == 'd') | |
7949 | { /* read */ | |
7950 | return -KEY_read; | |
7951 | } | |
7952 | ||
7953 | goto unknown; | |
7954 | ||
7955 | case 'c': | |
7956 | if (name[3] == 'v') | |
7957 | { /* recv */ | |
7958 | return -KEY_recv; | |
7959 | } | |
7960 | ||
7961 | goto unknown; | |
7962 | ||
7963 | case 'd': | |
7964 | if (name[3] == 'o') | |
7965 | { /* redo */ | |
7966 | return KEY_redo; | |
7967 | } | |
7968 | ||
7969 | goto unknown; | |
7970 | ||
7971 | default: | |
7972 | goto unknown; | |
7973 | } | |
7974 | ||
7975 | default: | |
7976 | goto unknown; | |
7977 | } | |
7978 | ||
7979 | case 's': | |
7980 | switch (name[1]) | |
7981 | { | |
7982 | case 'e': | |
7983 | switch (name[2]) | |
7984 | { | |
7985 | case 'e': | |
7986 | if (name[3] == 'k') | |
7987 | { /* seek */ | |
7988 | return -KEY_seek; | |
7989 | } | |
7990 | ||
7991 | goto unknown; | |
7992 | ||
7993 | case 'n': | |
7994 | if (name[3] == 'd') | |
7995 | { /* send */ | |
7996 | return -KEY_send; | |
7997 | } | |
7998 | ||
7999 | goto unknown; | |
8000 | ||
8001 | default: | |
8002 | goto unknown; | |
8003 | } | |
8004 | ||
8005 | case 'o': | |
8006 | if (name[2] == 'r' && | |
8007 | name[3] == 't') | |
8008 | { /* sort */ | |
8009 | return KEY_sort; | |
8010 | } | |
8011 | ||
8012 | goto unknown; | |
8013 | ||
8014 | case 'q': | |
8015 | if (name[2] == 'r' && | |
8016 | name[3] == 't') | |
8017 | { /* sqrt */ | |
8018 | return -KEY_sqrt; | |
8019 | } | |
8020 | ||
8021 | goto unknown; | |
8022 | ||
8023 | case 't': | |
8024 | if (name[2] == 'a' && | |
8025 | name[3] == 't') | |
8026 | { /* stat */ | |
8027 | return -KEY_stat; | |
8028 | } | |
8029 | ||
8030 | goto unknown; | |
8031 | ||
8032 | default: | |
8033 | goto unknown; | |
8034 | } | |
8035 | ||
8036 | case 't': | |
8037 | switch (name[1]) | |
8038 | { | |
8039 | case 'e': | |
8040 | if (name[2] == 'l' && | |
8041 | name[3] == 'l') | |
8042 | { /* tell */ | |
8043 | return -KEY_tell; | |
8044 | } | |
8045 | ||
8046 | goto unknown; | |
8047 | ||
8048 | case 'i': | |
8049 | switch (name[2]) | |
8050 | { | |
8051 | case 'e': | |
8052 | if (name[3] == 'd') | |
8053 | { /* tied */ | |
8054 | return KEY_tied; | |
8055 | } | |
8056 | ||
8057 | goto unknown; | |
8058 | ||
8059 | case 'm': | |
8060 | if (name[3] == 'e') | |
8061 | { /* time */ | |
8062 | return -KEY_time; | |
8063 | } | |
8064 | ||
8065 | goto unknown; | |
8066 | ||
8067 | default: | |
8068 | goto unknown; | |
8069 | } | |
8070 | ||
8071 | default: | |
8072 | goto unknown; | |
8073 | } | |
8074 | ||
8075 | case 'w': | |
0d863452 | 8076 | switch (name[1]) |
4c3bbe0f | 8077 | { |
0d863452 | 8078 | case 'a': |
952306ac RGS |
8079 | switch (name[2]) |
8080 | { | |
8081 | case 'i': | |
8082 | if (name[3] == 't') | |
8083 | { /* wait */ | |
8084 | return -KEY_wait; | |
8085 | } | |
4c3bbe0f | 8086 | |
952306ac | 8087 | goto unknown; |
4c3bbe0f | 8088 | |
952306ac RGS |
8089 | case 'r': |
8090 | if (name[3] == 'n') | |
8091 | { /* warn */ | |
8092 | return -KEY_warn; | |
8093 | } | |
4c3bbe0f | 8094 | |
952306ac | 8095 | goto unknown; |
4c3bbe0f | 8096 | |
952306ac RGS |
8097 | default: |
8098 | goto unknown; | |
8099 | } | |
0d863452 RH |
8100 | |
8101 | case 'h': | |
8102 | if (name[2] == 'e' && | |
8103 | name[3] == 'n') | |
8104 | { /* when */ | |
5458a98a | 8105 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_when : 0); |
952306ac | 8106 | } |
4c3bbe0f | 8107 | |
952306ac | 8108 | goto unknown; |
4c3bbe0f | 8109 | |
952306ac RGS |
8110 | default: |
8111 | goto unknown; | |
8112 | } | |
4c3bbe0f | 8113 | |
0d863452 RH |
8114 | default: |
8115 | goto unknown; | |
8116 | } | |
8117 | ||
952306ac | 8118 | case 5: /* 39 tokens of length 5 */ |
4c3bbe0f | 8119 | switch (name[0]) |
e2e1dd5a | 8120 | { |
4c3bbe0f MHM |
8121 | case 'B': |
8122 | if (name[1] == 'E' && | |
8123 | name[2] == 'G' && | |
8124 | name[3] == 'I' && | |
8125 | name[4] == 'N') | |
8126 | { /* BEGIN */ | |
8127 | return KEY_BEGIN; | |
8128 | } | |
8129 | ||
8130 | goto unknown; | |
8131 | ||
8132 | case 'C': | |
8133 | if (name[1] == 'H' && | |
8134 | name[2] == 'E' && | |
8135 | name[3] == 'C' && | |
8136 | name[4] == 'K') | |
8137 | { /* CHECK */ | |
8138 | return KEY_CHECK; | |
8139 | } | |
8140 | ||
8141 | goto unknown; | |
8142 | ||
8143 | case 'a': | |
8144 | switch (name[1]) | |
8145 | { | |
8146 | case 'l': | |
8147 | if (name[2] == 'a' && | |
8148 | name[3] == 'r' && | |
8149 | name[4] == 'm') | |
8150 | { /* alarm */ | |
8151 | return -KEY_alarm; | |
8152 | } | |
8153 | ||
8154 | goto unknown; | |
8155 | ||
8156 | case 't': | |
8157 | if (name[2] == 'a' && | |
8158 | name[3] == 'n' && | |
8159 | name[4] == '2') | |
8160 | { /* atan2 */ | |
8161 | return -KEY_atan2; | |
8162 | } | |
8163 | ||
8164 | goto unknown; | |
8165 | ||
8166 | default: | |
8167 | goto unknown; | |
8168 | } | |
8169 | ||
8170 | case 'b': | |
0d863452 RH |
8171 | switch (name[1]) |
8172 | { | |
8173 | case 'l': | |
8174 | if (name[2] == 'e' && | |
952306ac RGS |
8175 | name[3] == 's' && |
8176 | name[4] == 's') | |
8177 | { /* bless */ | |
8178 | return -KEY_bless; | |
8179 | } | |
4c3bbe0f | 8180 | |
952306ac | 8181 | goto unknown; |
4c3bbe0f | 8182 | |
0d863452 RH |
8183 | case 'r': |
8184 | if (name[2] == 'e' && | |
8185 | name[3] == 'a' && | |
8186 | name[4] == 'k') | |
8187 | { /* break */ | |
5458a98a | 8188 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? -KEY_break : 0); |
0d863452 RH |
8189 | } |
8190 | ||
8191 | goto unknown; | |
8192 | ||
8193 | default: | |
8194 | goto unknown; | |
8195 | } | |
8196 | ||
4c3bbe0f MHM |
8197 | case 'c': |
8198 | switch (name[1]) | |
8199 | { | |
8200 | case 'h': | |
8201 | switch (name[2]) | |
8202 | { | |
8203 | case 'd': | |
8204 | if (name[3] == 'i' && | |
8205 | name[4] == 'r') | |
8206 | { /* chdir */ | |
8207 | return -KEY_chdir; | |
8208 | } | |
8209 | ||
8210 | goto unknown; | |
8211 | ||
8212 | case 'm': | |
8213 | if (name[3] == 'o' && | |
8214 | name[4] == 'd') | |
8215 | { /* chmod */ | |
8216 | return -KEY_chmod; | |
8217 | } | |
8218 | ||
8219 | goto unknown; | |
8220 | ||
8221 | case 'o': | |
8222 | switch (name[3]) | |
8223 | { | |
8224 | case 'm': | |
8225 | if (name[4] == 'p') | |
8226 | { /* chomp */ | |
8227 | return -KEY_chomp; | |
8228 | } | |
8229 | ||
8230 | goto unknown; | |
8231 | ||
8232 | case 'w': | |
8233 | if (name[4] == 'n') | |
8234 | { /* chown */ | |
8235 | return -KEY_chown; | |
8236 | } | |
8237 | ||
8238 | goto unknown; | |
8239 | ||
8240 | default: | |
8241 | goto unknown; | |
8242 | } | |
8243 | ||
8244 | default: | |
8245 | goto unknown; | |
8246 | } | |
8247 | ||
8248 | case 'l': | |
8249 | if (name[2] == 'o' && | |
8250 | name[3] == 's' && | |
8251 | name[4] == 'e') | |
8252 | { /* close */ | |
8253 | return -KEY_close; | |
8254 | } | |
8255 | ||
8256 | goto unknown; | |
8257 | ||
8258 | case 'r': | |
8259 | if (name[2] == 'y' && | |
8260 | name[3] == 'p' && | |
8261 | name[4] == 't') | |
8262 | { /* crypt */ | |
8263 | return -KEY_crypt; | |
8264 | } | |
8265 | ||
8266 | goto unknown; | |
8267 | ||
8268 | default: | |
8269 | goto unknown; | |
8270 | } | |
8271 | ||
8272 | case 'e': | |
8273 | if (name[1] == 'l' && | |
8274 | name[2] == 's' && | |
8275 | name[3] == 'i' && | |
8276 | name[4] == 'f') | |
8277 | { /* elsif */ | |
8278 | return KEY_elsif; | |
8279 | } | |
8280 | ||
8281 | goto unknown; | |
8282 | ||
8283 | case 'f': | |
8284 | switch (name[1]) | |
8285 | { | |
8286 | case 'c': | |
8287 | if (name[2] == 'n' && | |
8288 | name[3] == 't' && | |
8289 | name[4] == 'l') | |
8290 | { /* fcntl */ | |
8291 | return -KEY_fcntl; | |
8292 | } | |
8293 | ||
8294 | goto unknown; | |
8295 | ||
8296 | case 'l': | |
8297 | if (name[2] == 'o' && | |
8298 | name[3] == 'c' && | |
8299 | name[4] == 'k') | |
8300 | { /* flock */ | |
8301 | return -KEY_flock; | |
8302 | } | |
8303 | ||
8304 | goto unknown; | |
8305 | ||
8306 | default: | |
8307 | goto unknown; | |
8308 | } | |
8309 | ||
0d863452 RH |
8310 | case 'g': |
8311 | if (name[1] == 'i' && | |
8312 | name[2] == 'v' && | |
8313 | name[3] == 'e' && | |
8314 | name[4] == 'n') | |
8315 | { /* given */ | |
5458a98a | 8316 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_given : 0); |
0d863452 RH |
8317 | } |
8318 | ||
8319 | goto unknown; | |
8320 | ||
4c3bbe0f MHM |
8321 | case 'i': |
8322 | switch (name[1]) | |
8323 | { | |
8324 | case 'n': | |
8325 | if (name[2] == 'd' && | |
8326 | name[3] == 'e' && | |
8327 | name[4] == 'x') | |
8328 | { /* index */ | |
8329 | return -KEY_index; | |
8330 | } | |
8331 | ||
8332 | goto unknown; | |
8333 | ||
8334 | case 'o': | |
8335 | if (name[2] == 'c' && | |
8336 | name[3] == 't' && | |
8337 | name[4] == 'l') | |
8338 | { /* ioctl */ | |
8339 | return -KEY_ioctl; | |
8340 | } | |
8341 | ||
8342 | goto unknown; | |
8343 | ||
8344 | default: | |
8345 | goto unknown; | |
8346 | } | |
8347 | ||
8348 | case 'l': | |
8349 | switch (name[1]) | |
8350 | { | |
8351 | case 'o': | |
8352 | if (name[2] == 'c' && | |
8353 | name[3] == 'a' && | |
8354 | name[4] == 'l') | |
8355 | { /* local */ | |
8356 | return KEY_local; | |
8357 | } | |
8358 | ||
8359 | goto unknown; | |
8360 | ||
8361 | case 's': | |
8362 | if (name[2] == 't' && | |
8363 | name[3] == 'a' && | |
8364 | name[4] == 't') | |
8365 | { /* lstat */ | |
8366 | return -KEY_lstat; | |
8367 | } | |
8368 | ||
8369 | goto unknown; | |
8370 | ||
8371 | default: | |
8372 | goto unknown; | |
8373 | } | |
8374 | ||
8375 | case 'm': | |
8376 | if (name[1] == 'k' && | |
8377 | name[2] == 'd' && | |
8378 | name[3] == 'i' && | |
8379 | name[4] == 'r') | |
8380 | { /* mkdir */ | |
8381 | return -KEY_mkdir; | |
8382 | } | |
8383 | ||
8384 | goto unknown; | |
8385 | ||
8386 | case 'p': | |
8387 | if (name[1] == 'r' && | |
8388 | name[2] == 'i' && | |
8389 | name[3] == 'n' && | |
8390 | name[4] == 't') | |
8391 | { /* print */ | |
8392 | return KEY_print; | |
8393 | } | |
8394 | ||
8395 | goto unknown; | |
8396 | ||
8397 | case 'r': | |
8398 | switch (name[1]) | |
8399 | { | |
8400 | case 'e': | |
8401 | if (name[2] == 's' && | |
8402 | name[3] == 'e' && | |
8403 | name[4] == 't') | |
8404 | { /* reset */ | |
8405 | return -KEY_reset; | |
8406 | } | |
8407 | ||
8408 | goto unknown; | |
8409 | ||
8410 | case 'm': | |
8411 | if (name[2] == 'd' && | |
8412 | name[3] == 'i' && | |
8413 | name[4] == 'r') | |
8414 | { /* rmdir */ | |
8415 | return -KEY_rmdir; | |
8416 | } | |
8417 | ||
8418 | goto unknown; | |
8419 | ||
8420 | default: | |
8421 | goto unknown; | |
8422 | } | |
8423 | ||
8424 | case 's': | |
8425 | switch (name[1]) | |
8426 | { | |
8427 | case 'e': | |
8428 | if (name[2] == 'm' && | |
8429 | name[3] == 'o' && | |
8430 | name[4] == 'p') | |
8431 | { /* semop */ | |
8432 | return -KEY_semop; | |
8433 | } | |
8434 | ||
8435 | goto unknown; | |
8436 | ||
8437 | case 'h': | |
8438 | if (name[2] == 'i' && | |
8439 | name[3] == 'f' && | |
8440 | name[4] == 't') | |
8441 | { /* shift */ | |
8442 | return -KEY_shift; | |
8443 | } | |
8444 | ||
8445 | goto unknown; | |
8446 | ||
8447 | case 'l': | |
8448 | if (name[2] == 'e' && | |
8449 | name[3] == 'e' && | |
8450 | name[4] == 'p') | |
8451 | { /* sleep */ | |
8452 | return -KEY_sleep; | |
8453 | } | |
8454 | ||
8455 | goto unknown; | |
8456 | ||
8457 | case 'p': | |
8458 | if (name[2] == 'l' && | |
8459 | name[3] == 'i' && | |
8460 | name[4] == 't') | |
8461 | { /* split */ | |
8462 | return KEY_split; | |
8463 | } | |
8464 | ||
8465 | goto unknown; | |
8466 | ||
8467 | case 'r': | |
8468 | if (name[2] == 'a' && | |
8469 | name[3] == 'n' && | |
8470 | name[4] == 'd') | |
8471 | { /* srand */ | |
8472 | return -KEY_srand; | |
8473 | } | |
8474 | ||
8475 | goto unknown; | |
8476 | ||
8477 | case 't': | |
952306ac RGS |
8478 | switch (name[2]) |
8479 | { | |
8480 | case 'a': | |
8481 | if (name[3] == 't' && | |
8482 | name[4] == 'e') | |
8483 | { /* state */ | |
5458a98a | 8484 | return (all_keywords || FEATURE_IS_ENABLED("state") ? KEY_state : 0); |
952306ac | 8485 | } |
4c3bbe0f | 8486 | |
952306ac RGS |
8487 | goto unknown; |
8488 | ||
8489 | case 'u': | |
8490 | if (name[3] == 'd' && | |
8491 | name[4] == 'y') | |
8492 | { /* study */ | |
8493 | return KEY_study; | |
8494 | } | |
8495 | ||
8496 | goto unknown; | |
8497 | ||
8498 | default: | |
8499 | goto unknown; | |
8500 | } | |
4c3bbe0f MHM |
8501 | |
8502 | default: | |
8503 | goto unknown; | |
8504 | } | |
8505 | ||
8506 | case 't': | |
8507 | if (name[1] == 'i' && | |
8508 | name[2] == 'm' && | |
8509 | name[3] == 'e' && | |
8510 | name[4] == 's') | |
8511 | { /* times */ | |
8512 | return -KEY_times; | |
8513 | } | |
8514 | ||
8515 | goto unknown; | |
8516 | ||
8517 | case 'u': | |
8518 | switch (name[1]) | |
8519 | { | |
8520 | case 'm': | |
8521 | if (name[2] == 'a' && | |
8522 | name[3] == 's' && | |
8523 | name[4] == 'k') | |
8524 | { /* umask */ | |
8525 | return -KEY_umask; | |
8526 | } | |
8527 | ||
8528 | goto unknown; | |
8529 | ||
8530 | case 'n': | |
8531 | switch (name[2]) | |
8532 | { | |
8533 | case 'd': | |
8534 | if (name[3] == 'e' && | |
8535 | name[4] == 'f') | |
8536 | { /* undef */ | |
8537 | return KEY_undef; | |
8538 | } | |
8539 | ||
8540 | goto unknown; | |
8541 | ||
8542 | case 't': | |
8543 | if (name[3] == 'i') | |
8544 | { | |
8545 | switch (name[4]) | |
8546 | { | |
8547 | case 'e': | |
8548 | { /* untie */ | |
8549 | return KEY_untie; | |
8550 | } | |
8551 | ||
4c3bbe0f MHM |
8552 | case 'l': |
8553 | { /* until */ | |
8554 | return KEY_until; | |
8555 | } | |
8556 | ||
4c3bbe0f MHM |
8557 | default: |
8558 | goto unknown; | |
8559 | } | |
8560 | } | |
8561 | ||
8562 | goto unknown; | |
8563 | ||
8564 | default: | |
8565 | goto unknown; | |
8566 | } | |
8567 | ||
8568 | case 't': | |
8569 | if (name[2] == 'i' && | |
8570 | name[3] == 'm' && | |
8571 | name[4] == 'e') | |
8572 | { /* utime */ | |
8573 | return -KEY_utime; | |
8574 | } | |
8575 | ||
8576 | goto unknown; | |
8577 | ||
8578 | default: | |
8579 | goto unknown; | |
8580 | } | |
8581 | ||
8582 | case 'w': | |
8583 | switch (name[1]) | |
8584 | { | |
8585 | case 'h': | |
8586 | if (name[2] == 'i' && | |
8587 | name[3] == 'l' && | |
8588 | name[4] == 'e') | |
8589 | { /* while */ | |
8590 | return KEY_while; | |
8591 | } | |
8592 | ||
8593 | goto unknown; | |
8594 | ||
8595 | case 'r': | |
8596 | if (name[2] == 'i' && | |
8597 | name[3] == 't' && | |
8598 | name[4] == 'e') | |
8599 | { /* write */ | |
8600 | return -KEY_write; | |
8601 | } | |
8602 | ||
8603 | goto unknown; | |
8604 | ||
8605 | default: | |
8606 | goto unknown; | |
8607 | } | |
8608 | ||
8609 | default: | |
8610 | goto unknown; | |
e2e1dd5a | 8611 | } |
4c3bbe0f MHM |
8612 | |
8613 | case 6: /* 33 tokens of length 6 */ | |
8614 | switch (name[0]) | |
8615 | { | |
8616 | case 'a': | |
8617 | if (name[1] == 'c' && | |
8618 | name[2] == 'c' && | |
8619 | name[3] == 'e' && | |
8620 | name[4] == 'p' && | |
8621 | name[5] == 't') | |
8622 | { /* accept */ | |
8623 | return -KEY_accept; | |
8624 | } | |
8625 | ||
8626 | goto unknown; | |
8627 | ||
8628 | case 'c': | |
8629 | switch (name[1]) | |
8630 | { | |
8631 | case 'a': | |
8632 | if (name[2] == 'l' && | |
8633 | name[3] == 'l' && | |
8634 | name[4] == 'e' && | |
8635 | name[5] == 'r') | |
8636 | { /* caller */ | |
8637 | return -KEY_caller; | |
8638 | } | |
8639 | ||
8640 | goto unknown; | |
8641 | ||
8642 | case 'h': | |
8643 | if (name[2] == 'r' && | |
8644 | name[3] == 'o' && | |
8645 | name[4] == 'o' && | |
8646 | name[5] == 't') | |
8647 | { /* chroot */ | |
8648 | return -KEY_chroot; | |
8649 | } | |
8650 | ||
8651 | goto unknown; | |
8652 | ||
8653 | default: | |
8654 | goto unknown; | |
8655 | } | |
8656 | ||
8657 | case 'd': | |
8658 | if (name[1] == 'e' && | |
8659 | name[2] == 'l' && | |
8660 | name[3] == 'e' && | |
8661 | name[4] == 't' && | |
8662 | name[5] == 'e') | |
8663 | { /* delete */ | |
8664 | return KEY_delete; | |
8665 | } | |
8666 | ||
8667 | goto unknown; | |
8668 | ||
8669 | case 'e': | |
8670 | switch (name[1]) | |
8671 | { | |
8672 | case 'l': | |
8673 | if (name[2] == 's' && | |
8674 | name[3] == 'e' && | |
8675 | name[4] == 'i' && | |
8676 | name[5] == 'f') | |
8677 | { /* elseif */ | |
8678 | if(ckWARN_d(WARN_SYNTAX)) | |
8679 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); | |
8680 | } | |
8681 | ||
8682 | goto unknown; | |
8683 | ||
8684 | case 'x': | |
8685 | if (name[2] == 'i' && | |
8686 | name[3] == 's' && | |
8687 | name[4] == 't' && | |
8688 | name[5] == 's') | |
8689 | { /* exists */ | |
8690 | return KEY_exists; | |
8691 | } | |
8692 | ||
8693 | goto unknown; | |
8694 | ||
8695 | default: | |
8696 | goto unknown; | |
8697 | } | |
8698 | ||
8699 | case 'f': | |
8700 | switch (name[1]) | |
8701 | { | |
8702 | case 'i': | |
8703 | if (name[2] == 'l' && | |
8704 | name[3] == 'e' && | |
8705 | name[4] == 'n' && | |
8706 | name[5] == 'o') | |
8707 | { /* fileno */ | |
8708 | return -KEY_fileno; | |
8709 | } | |
8710 | ||
8711 | goto unknown; | |
8712 | ||
8713 | case 'o': | |
8714 | if (name[2] == 'r' && | |
8715 | name[3] == 'm' && | |
8716 | name[4] == 'a' && | |
8717 | name[5] == 't') | |
8718 | { /* format */ | |
8719 | return KEY_format; | |
8720 | } | |
8721 | ||
8722 | goto unknown; | |
8723 | ||
8724 | default: | |
8725 | goto unknown; | |
8726 | } | |
8727 | ||
8728 | case 'g': | |
8729 | if (name[1] == 'm' && | |
8730 | name[2] == 't' && | |
8731 | name[3] == 'i' && | |
8732 | name[4] == 'm' && | |
8733 | name[5] == 'e') | |
8734 | { /* gmtime */ | |
8735 | return -KEY_gmtime; | |
8736 | } | |
8737 | ||
8738 | goto unknown; | |
8739 | ||
8740 | case 'l': | |
8741 | switch (name[1]) | |
8742 | { | |
8743 | case 'e': | |
8744 | if (name[2] == 'n' && | |
8745 | name[3] == 'g' && | |
8746 | name[4] == 't' && | |
8747 | name[5] == 'h') | |
8748 | { /* length */ | |
8749 | return -KEY_length; | |
8750 | } | |
8751 | ||
8752 | goto unknown; | |
8753 | ||
8754 | case 'i': | |
8755 | if (name[2] == 's' && | |
8756 | name[3] == 't' && | |
8757 | name[4] == 'e' && | |
8758 | name[5] == 'n') | |
8759 | { /* listen */ | |
8760 | return -KEY_listen; | |
8761 | } | |
8762 | ||
8763 | goto unknown; | |
8764 | ||
8765 | default: | |
8766 | goto unknown; | |
8767 | } | |
8768 | ||
8769 | case 'm': | |
8770 | if (name[1] == 's' && | |
8771 | name[2] == 'g') | |
8772 | { | |
8773 | switch (name[3]) | |
8774 | { | |
8775 | case 'c': | |
8776 | if (name[4] == 't' && | |
8777 | name[5] == 'l') | |
8778 | { /* msgctl */ | |
8779 | return -KEY_msgctl; | |
8780 | } | |
8781 | ||
8782 | goto unknown; | |
8783 | ||
8784 | case 'g': | |
8785 | if (name[4] == 'e' && | |
8786 | name[5] == 't') | |
8787 | { /* msgget */ | |
8788 | return -KEY_msgget; | |
8789 | } | |
8790 | ||
8791 | goto unknown; | |
8792 | ||
8793 | case 'r': | |
8794 | if (name[4] == 'c' && | |
8795 | name[5] == 'v') | |
8796 | { /* msgrcv */ | |
8797 | return -KEY_msgrcv; | |
8798 | } | |
8799 | ||
8800 | goto unknown; | |
8801 | ||
8802 | case 's': | |
8803 | if (name[4] == 'n' && | |
8804 | name[5] == 'd') | |
8805 | { /* msgsnd */ | |
8806 | return -KEY_msgsnd; | |
8807 | } | |
8808 | ||
8809 | goto unknown; | |
8810 | ||
8811 | default: | |
8812 | goto unknown; | |
8813 | } | |
8814 | } | |
8815 | ||
8816 | goto unknown; | |
8817 | ||
8818 | case 'p': | |
8819 | if (name[1] == 'r' && | |
8820 | name[2] == 'i' && | |
8821 | name[3] == 'n' && | |
8822 | name[4] == 't' && | |
8823 | name[5] == 'f') | |
8824 | { /* printf */ | |
8825 | return KEY_printf; | |
8826 | } | |
8827 | ||
8828 | goto unknown; | |
8829 | ||
8830 | case 'r': | |
8831 | switch (name[1]) | |
8832 | { | |
8833 | case 'e': | |
8834 | switch (name[2]) | |
8835 | { | |
8836 | case 'n': | |
8837 | if (name[3] == 'a' && | |
8838 | name[4] == 'm' && | |
8839 | name[5] == 'e') | |
8840 | { /* rename */ | |
8841 | return -KEY_rename; | |
8842 | } | |
8843 | ||
8844 | goto unknown; | |
8845 | ||
8846 | case 't': | |
8847 | if (name[3] == 'u' && | |
8848 | name[4] == 'r' && | |
8849 | name[5] == 'n') | |
8850 | { /* return */ | |
8851 | return KEY_return; | |
8852 | } | |
8853 | ||
8854 | goto unknown; | |
8855 | ||
8856 | default: | |
8857 | goto unknown; | |
8858 | } | |
8859 | ||
8860 | case 'i': | |
8861 | if (name[2] == 'n' && | |
8862 | name[3] == 'd' && | |
8863 | name[4] == 'e' && | |
8864 | name[5] == 'x') | |
8865 | { /* rindex */ | |
8866 | return -KEY_rindex; | |
8867 | } | |
8868 | ||
8869 | goto unknown; | |
8870 | ||
8871 | default: | |
8872 | goto unknown; | |
8873 | } | |
8874 | ||
8875 | case 's': | |
8876 | switch (name[1]) | |
8877 | { | |
8878 | case 'c': | |
8879 | if (name[2] == 'a' && | |
8880 | name[3] == 'l' && | |
8881 | name[4] == 'a' && | |
8882 | name[5] == 'r') | |
8883 | { /* scalar */ | |
8884 | return KEY_scalar; | |
8885 | } | |
8886 | ||
8887 | goto unknown; | |
8888 | ||
8889 | case 'e': | |
8890 | switch (name[2]) | |
8891 | { | |
8892 | case 'l': | |
8893 | if (name[3] == 'e' && | |
8894 | name[4] == 'c' && | |
8895 | name[5] == 't') | |
8896 | { /* select */ | |
8897 | return -KEY_select; | |
8898 | } | |
8899 | ||
8900 | goto unknown; | |
8901 | ||
8902 | case 'm': | |
8903 | switch (name[3]) | |
8904 | { | |
8905 | case 'c': | |
8906 | if (name[4] == 't' && | |
8907 | name[5] == 'l') | |
8908 | { /* semctl */ | |
8909 | return -KEY_semctl; | |
8910 | } | |
8911 | ||
8912 | goto unknown; | |
8913 | ||
8914 | case 'g': | |
8915 | if (name[4] == 'e' && | |
8916 | name[5] == 't') | |
8917 | { /* semget */ | |
8918 | return -KEY_semget; | |
8919 | } | |
8920 | ||
8921 | goto unknown; | |
8922 | ||
8923 | default: | |
8924 | goto unknown; | |
8925 | } | |
8926 | ||
8927 | default: | |
8928 | goto unknown; | |
8929 | } | |
8930 | ||
8931 | case 'h': | |
8932 | if (name[2] == 'm') | |
8933 | { | |
8934 | switch (name[3]) | |
8935 | { | |
8936 | case 'c': | |
8937 | if (name[4] == 't' && | |
8938 | name[5] == 'l') | |
8939 | { /* shmctl */ | |
8940 | return -KEY_shmctl; | |
8941 | } | |
8942 | ||
8943 | goto unknown; | |
8944 | ||
8945 | case 'g': | |
8946 | if (name[4] == 'e' && | |
8947 | name[5] == 't') | |
8948 | { /* shmget */ | |
8949 | return -KEY_shmget; | |
8950 | } | |
8951 | ||
8952 | goto unknown; | |
8953 | ||
8954 | default: | |
8955 | goto unknown; | |
8956 | } | |
8957 | } | |
8958 | ||
8959 | goto unknown; | |
8960 | ||
8961 | case 'o': | |
8962 | if (name[2] == 'c' && | |
8963 | name[3] == 'k' && | |
8964 | name[4] == 'e' && | |
8965 | name[5] == 't') | |
8966 | { /* socket */ | |
8967 | return -KEY_socket; | |
8968 | } | |
8969 | ||
8970 | goto unknown; | |
8971 | ||
8972 | case 'p': | |
8973 | if (name[2] == 'l' && | |
8974 | name[3] == 'i' && | |
8975 | name[4] == 'c' && | |
8976 | name[5] == 'e') | |
8977 | { /* splice */ | |
8978 | return -KEY_splice; | |
8979 | } | |
8980 | ||
8981 | goto unknown; | |
8982 | ||
8983 | case 'u': | |
8984 | if (name[2] == 'b' && | |
8985 | name[3] == 's' && | |
8986 | name[4] == 't' && | |
8987 | name[5] == 'r') | |
8988 | { /* substr */ | |
8989 | return -KEY_substr; | |
8990 | } | |
8991 | ||
8992 | goto unknown; | |
8993 | ||
8994 | case 'y': | |
8995 | if (name[2] == 's' && | |
8996 | name[3] == 't' && | |
8997 | name[4] == 'e' && | |
8998 | name[5] == 'm') | |
8999 | { /* system */ | |
9000 | return -KEY_system; | |
9001 | } | |
9002 | ||
9003 | goto unknown; | |
9004 | ||
9005 | default: | |
9006 | goto unknown; | |
9007 | } | |
9008 | ||
9009 | case 'u': | |
9010 | if (name[1] == 'n') | |
9011 | { | |
9012 | switch (name[2]) | |
9013 | { | |
9014 | case 'l': | |
9015 | switch (name[3]) | |
9016 | { | |
9017 | case 'e': | |
9018 | if (name[4] == 's' && | |
9019 | name[5] == 's') | |
9020 | { /* unless */ | |
9021 | return KEY_unless; | |
9022 | } | |
9023 | ||
9024 | goto unknown; | |
9025 | ||
9026 | case 'i': | |
9027 | if (name[4] == 'n' && | |
9028 | name[5] == 'k') | |
9029 | { /* unlink */ | |
9030 | return -KEY_unlink; | |
9031 | } | |
9032 | ||
9033 | goto unknown; | |
9034 | ||
9035 | default: | |
9036 | goto unknown; | |
9037 | } | |
9038 | ||
9039 | case 'p': | |
9040 | if (name[3] == 'a' && | |
9041 | name[4] == 'c' && | |
9042 | name[5] == 'k') | |
9043 | { /* unpack */ | |
9044 | return -KEY_unpack; | |
9045 | } | |
9046 | ||
9047 | goto unknown; | |
9048 | ||
9049 | default: | |
9050 | goto unknown; | |
9051 | } | |
9052 | } | |
9053 | ||
9054 | goto unknown; | |
9055 | ||
9056 | case 'v': | |
9057 | if (name[1] == 'a' && | |
9058 | name[2] == 'l' && | |
9059 | name[3] == 'u' && | |
9060 | name[4] == 'e' && | |
9061 | name[5] == 's') | |
9062 | { /* values */ | |
9063 | return -KEY_values; | |
9064 | } | |
9065 | ||
9066 | goto unknown; | |
9067 | ||
9068 | default: | |
9069 | goto unknown; | |
e2e1dd5a | 9070 | } |
4c3bbe0f | 9071 | |
0d863452 | 9072 | case 7: /* 29 tokens of length 7 */ |
4c3bbe0f MHM |
9073 | switch (name[0]) |
9074 | { | |
9075 | case 'D': | |
9076 | if (name[1] == 'E' && | |
9077 | name[2] == 'S' && | |
9078 | name[3] == 'T' && | |
9079 | name[4] == 'R' && | |
9080 | name[5] == 'O' && | |
9081 | name[6] == 'Y') | |
9082 | { /* DESTROY */ | |
9083 | return KEY_DESTROY; | |
9084 | } | |
9085 | ||
9086 | goto unknown; | |
9087 | ||
9088 | case '_': | |
9089 | if (name[1] == '_' && | |
9090 | name[2] == 'E' && | |
9091 | name[3] == 'N' && | |
9092 | name[4] == 'D' && | |
9093 | name[5] == '_' && | |
9094 | name[6] == '_') | |
9095 | { /* __END__ */ | |
9096 | return KEY___END__; | |
9097 | } | |
9098 | ||
9099 | goto unknown; | |
9100 | ||
9101 | case 'b': | |
9102 | if (name[1] == 'i' && | |
9103 | name[2] == 'n' && | |
9104 | name[3] == 'm' && | |
9105 | name[4] == 'o' && | |
9106 | name[5] == 'd' && | |
9107 | name[6] == 'e') | |
9108 | { /* binmode */ | |
9109 | return -KEY_binmode; | |
9110 | } | |
9111 | ||
9112 | goto unknown; | |
9113 | ||
9114 | case 'c': | |
9115 | if (name[1] == 'o' && | |
9116 | name[2] == 'n' && | |
9117 | name[3] == 'n' && | |
9118 | name[4] == 'e' && | |
9119 | name[5] == 'c' && | |
9120 | name[6] == 't') | |
9121 | { /* connect */ | |
9122 | return -KEY_connect; | |
9123 | } | |
9124 | ||
9125 | goto unknown; | |
9126 | ||
9127 | case 'd': | |
9128 | switch (name[1]) | |
9129 | { | |
9130 | case 'b': | |
9131 | if (name[2] == 'm' && | |
9132 | name[3] == 'o' && | |
9133 | name[4] == 'p' && | |
9134 | name[5] == 'e' && | |
9135 | name[6] == 'n') | |
9136 | { /* dbmopen */ | |
9137 | return -KEY_dbmopen; | |
9138 | } | |
9139 | ||
9140 | goto unknown; | |
9141 | ||
9142 | case 'e': | |
0d863452 RH |
9143 | if (name[2] == 'f') |
9144 | { | |
9145 | switch (name[3]) | |
9146 | { | |
9147 | case 'a': | |
9148 | if (name[4] == 'u' && | |
9149 | name[5] == 'l' && | |
9150 | name[6] == 't') | |
9151 | { /* default */ | |
5458a98a | 9152 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_default : 0); |
0d863452 RH |
9153 | } |
9154 | ||
9155 | goto unknown; | |
9156 | ||
9157 | case 'i': | |
9158 | if (name[4] == 'n' && | |
952306ac RGS |
9159 | name[5] == 'e' && |
9160 | name[6] == 'd') | |
9161 | { /* defined */ | |
9162 | return KEY_defined; | |
9163 | } | |
4c3bbe0f | 9164 | |
952306ac | 9165 | goto unknown; |
4c3bbe0f | 9166 | |
952306ac RGS |
9167 | default: |
9168 | goto unknown; | |
9169 | } | |
0d863452 RH |
9170 | } |
9171 | ||
9172 | goto unknown; | |
9173 | ||
9174 | default: | |
9175 | goto unknown; | |
9176 | } | |
4c3bbe0f MHM |
9177 | |
9178 | case 'f': | |
9179 | if (name[1] == 'o' && | |
9180 | name[2] == 'r' && | |
9181 | name[3] == 'e' && | |
9182 | name[4] == 'a' && | |
9183 | name[5] == 'c' && | |
9184 | name[6] == 'h') | |
9185 | { /* foreach */ | |
9186 | return KEY_foreach; | |
9187 | } | |
9188 | ||
9189 | goto unknown; | |
9190 | ||
9191 | case 'g': | |
9192 | if (name[1] == 'e' && | |
9193 | name[2] == 't' && | |
9194 | name[3] == 'p') | |
9195 | { | |
9196 | switch (name[4]) | |
9197 | { | |
9198 | case 'g': | |
9199 | if (name[5] == 'r' && | |
9200 | name[6] == 'p') | |
9201 | { /* getpgrp */ | |
9202 | return -KEY_getpgrp; | |
9203 | } | |
9204 | ||
9205 | goto unknown; | |
9206 | ||
9207 | case 'p': | |
9208 | if (name[5] == 'i' && | |
9209 | name[6] == 'd') | |
9210 | { /* getppid */ | |
9211 | return -KEY_getppid; | |
9212 | } | |
9213 | ||
9214 | goto unknown; | |
9215 | ||
9216 | default: | |
9217 | goto unknown; | |
9218 | } | |
9219 | } | |
9220 | ||
9221 | goto unknown; | |
9222 | ||
9223 | case 'l': | |
9224 | if (name[1] == 'c' && | |
9225 | name[2] == 'f' && | |
9226 | name[3] == 'i' && | |
9227 | name[4] == 'r' && | |
9228 | name[5] == 's' && | |
9229 | name[6] == 't') | |
9230 | { /* lcfirst */ | |
9231 | return -KEY_lcfirst; | |
9232 | } | |
9233 | ||
9234 | goto unknown; | |
9235 | ||
9236 | case 'o': | |
9237 | if (name[1] == 'p' && | |
9238 | name[2] == 'e' && | |
9239 | name[3] == 'n' && | |
9240 | name[4] == 'd' && | |
9241 | name[5] == 'i' && | |
9242 | name[6] == 'r') | |
9243 | { /* opendir */ | |
9244 | return -KEY_opendir; | |
9245 | } | |
9246 | ||
9247 | goto unknown; | |
9248 | ||
9249 | case 'p': | |
9250 | if (name[1] == 'a' && | |
9251 | name[2] == 'c' && | |
9252 | name[3] == 'k' && | |
9253 | name[4] == 'a' && | |
9254 | name[5] == 'g' && | |
9255 | name[6] == 'e') | |
9256 | { /* package */ | |
9257 | return KEY_package; | |
9258 | } | |
9259 | ||
9260 | goto unknown; | |
9261 | ||
9262 | case 'r': | |
9263 | if (name[1] == 'e') | |
9264 | { | |
9265 | switch (name[2]) | |
9266 | { | |
9267 | case 'a': | |
9268 | if (name[3] == 'd' && | |
9269 | name[4] == 'd' && | |
9270 | name[5] == 'i' && | |
9271 | name[6] == 'r') | |
9272 | { /* readdir */ | |
9273 | return -KEY_readdir; | |
9274 | } | |
9275 | ||
9276 | goto unknown; | |
9277 | ||
9278 | case 'q': | |
9279 | if (name[3] == 'u' && | |
9280 | name[4] == 'i' && | |
9281 | name[5] == 'r' && | |
9282 | name[6] == 'e') | |
9283 | { /* require */ | |
9284 | return KEY_require; | |
9285 | } | |
9286 | ||
9287 | goto unknown; | |
9288 | ||
9289 | case 'v': | |
9290 | if (name[3] == 'e' && | |
9291 | name[4] == 'r' && | |
9292 | name[5] == 's' && | |
9293 | name[6] == 'e') | |
9294 | { /* reverse */ | |
9295 | return -KEY_reverse; | |
9296 | } | |
9297 | ||
9298 | goto unknown; | |
9299 | ||
9300 | default: | |
9301 | goto unknown; | |
9302 | } | |
9303 | } | |
9304 | ||
9305 | goto unknown; | |
9306 | ||
9307 | case 's': | |
9308 | switch (name[1]) | |
9309 | { | |
9310 | case 'e': | |
9311 | switch (name[2]) | |
9312 | { | |
9313 | case 'e': | |
9314 | if (name[3] == 'k' && | |
9315 | name[4] == 'd' && | |
9316 | name[5] == 'i' && | |
9317 | name[6] == 'r') | |
9318 | { /* seekdir */ | |
9319 | return -KEY_seekdir; | |
9320 | } | |
9321 | ||
9322 | goto unknown; | |
9323 | ||
9324 | case 't': | |
9325 | if (name[3] == 'p' && | |
9326 | name[4] == 'g' && | |
9327 | name[5] == 'r' && | |
9328 | name[6] == 'p') | |
9329 | { /* setpgrp */ | |
9330 | return -KEY_setpgrp; | |
9331 | } | |
9332 | ||
9333 | goto unknown; | |
9334 | ||
9335 | default: | |
9336 | goto unknown; | |
9337 | } | |
9338 | ||
9339 | case 'h': | |
9340 | if (name[2] == 'm' && | |
9341 | name[3] == 'r' && | |
9342 | name[4] == 'e' && | |
9343 | name[5] == 'a' && | |
9344 | name[6] == 'd') | |
9345 | { /* shmread */ | |
9346 | return -KEY_shmread; | |
9347 | } | |
9348 | ||
9349 | goto unknown; | |
9350 | ||
9351 | case 'p': | |
9352 | if (name[2] == 'r' && | |
9353 | name[3] == 'i' && | |
9354 | name[4] == 'n' && | |
9355 | name[5] == 't' && | |
9356 | name[6] == 'f') | |
9357 | { /* sprintf */ | |
9358 | return -KEY_sprintf; | |
9359 | } | |
9360 | ||
9361 | goto unknown; | |
9362 | ||
9363 | case 'y': | |
9364 | switch (name[2]) | |
9365 | { | |
9366 | case 'm': | |
9367 | if (name[3] == 'l' && | |
9368 | name[4] == 'i' && | |
9369 | name[5] == 'n' && | |
9370 | name[6] == 'k') | |
9371 | { /* symlink */ | |
9372 | return -KEY_symlink; | |
9373 | } | |
9374 | ||
9375 | goto unknown; | |
9376 | ||
9377 | case 's': | |
9378 | switch (name[3]) | |
9379 | { | |
9380 | case 'c': | |
9381 | if (name[4] == 'a' && | |
9382 | name[5] == 'l' && | |
9383 | name[6] == 'l') | |
9384 | { /* syscall */ | |
9385 | return -KEY_syscall; | |
9386 | } | |
9387 | ||
9388 | goto unknown; | |
9389 | ||
9390 | case 'o': | |
9391 | if (name[4] == 'p' && | |
9392 | name[5] == 'e' && | |
9393 | name[6] == 'n') | |
9394 | { /* sysopen */ | |
9395 | return -KEY_sysopen; | |
9396 | } | |
9397 | ||
9398 | goto unknown; | |
9399 | ||
9400 | case 'r': | |
9401 | if (name[4] == 'e' && | |
9402 | name[5] == 'a' && | |
9403 | name[6] == 'd') | |
9404 | { /* sysread */ | |
9405 | return -KEY_sysread; | |
9406 | } | |
9407 | ||
9408 | goto unknown; | |
9409 | ||
9410 | case 's': | |
9411 | if (name[4] == 'e' && | |
9412 | name[5] == 'e' && | |
9413 | name[6] == 'k') | |
9414 | { /* sysseek */ | |
9415 | return -KEY_sysseek; | |
9416 | } | |
9417 | ||
9418 | goto unknown; | |
9419 | ||
9420 | default: | |
9421 | goto unknown; | |
9422 | } | |
9423 | ||
9424 | default: | |
9425 | goto unknown; | |
9426 | } | |
9427 | ||
9428 | default: | |
9429 | goto unknown; | |
9430 | } | |
9431 | ||
9432 | case 't': | |
9433 | if (name[1] == 'e' && | |
9434 | name[2] == 'l' && | |
9435 | name[3] == 'l' && | |
9436 | name[4] == 'd' && | |
9437 | name[5] == 'i' && | |
9438 | name[6] == 'r') | |
9439 | { /* telldir */ | |
9440 | return -KEY_telldir; | |
9441 | } | |
9442 | ||
9443 | goto unknown; | |
9444 | ||
9445 | case 'u': | |
9446 | switch (name[1]) | |
9447 | { | |
9448 | case 'c': | |
9449 | if (name[2] == 'f' && | |
9450 | name[3] == 'i' && | |
9451 | name[4] == 'r' && | |
9452 | name[5] == 's' && | |
9453 | name[6] == 't') | |
9454 | { /* ucfirst */ | |
9455 | return -KEY_ucfirst; | |
9456 | } | |
9457 | ||
9458 | goto unknown; | |
9459 | ||
9460 | case 'n': | |
9461 | if (name[2] == 's' && | |
9462 | name[3] == 'h' && | |
9463 | name[4] == 'i' && | |
9464 | name[5] == 'f' && | |
9465 | name[6] == 't') | |
9466 | { /* unshift */ | |
9467 | return -KEY_unshift; | |
9468 | } | |
9469 | ||
9470 | goto unknown; | |
9471 | ||
9472 | default: | |
9473 | goto unknown; | |
9474 | } | |
9475 | ||
9476 | case 'w': | |
9477 | if (name[1] == 'a' && | |
9478 | name[2] == 'i' && | |
9479 | name[3] == 't' && | |
9480 | name[4] == 'p' && | |
9481 | name[5] == 'i' && | |
9482 | name[6] == 'd') | |
9483 | { /* waitpid */ | |
9484 | return -KEY_waitpid; | |
9485 | } | |
9486 | ||
9487 | goto unknown; | |
9488 | ||
9489 | default: | |
9490 | goto unknown; | |
9491 | } | |
9492 | ||
9493 | case 8: /* 26 tokens of length 8 */ | |
9494 | switch (name[0]) | |
9495 | { | |
9496 | case 'A': | |
9497 | if (name[1] == 'U' && | |
9498 | name[2] == 'T' && | |
9499 | name[3] == 'O' && | |
9500 | name[4] == 'L' && | |
9501 | name[5] == 'O' && | |
9502 | name[6] == 'A' && | |
9503 | name[7] == 'D') | |
9504 | { /* AUTOLOAD */ | |
9505 | return KEY_AUTOLOAD; | |
9506 | } | |
9507 | ||
9508 | goto unknown; | |
9509 | ||
9510 | case '_': | |
9511 | if (name[1] == '_') | |
9512 | { | |
9513 | switch (name[2]) | |
9514 | { | |
9515 | case 'D': | |
9516 | if (name[3] == 'A' && | |
9517 | name[4] == 'T' && | |
9518 | name[5] == 'A' && | |
9519 | name[6] == '_' && | |
9520 | name[7] == '_') | |
9521 | { /* __DATA__ */ | |
9522 | return KEY___DATA__; | |
9523 | } | |
9524 | ||
9525 | goto unknown; | |
9526 | ||
9527 | case 'F': | |
9528 | if (name[3] == 'I' && | |
9529 | name[4] == 'L' && | |
9530 | name[5] == 'E' && | |
9531 | name[6] == '_' && | |
9532 | name[7] == '_') | |
9533 | { /* __FILE__ */ | |
9534 | return -KEY___FILE__; | |
9535 | } | |
9536 | ||
9537 | goto unknown; | |
9538 | ||
9539 | case 'L': | |
9540 | if (name[3] == 'I' && | |
9541 | name[4] == 'N' && | |
9542 | name[5] == 'E' && | |
9543 | name[6] == '_' && | |
9544 | name[7] == '_') | |
9545 | { /* __LINE__ */ | |
9546 | return -KEY___LINE__; | |
9547 | } | |
9548 | ||
9549 | goto unknown; | |
9550 | ||
9551 | default: | |
9552 | goto unknown; | |
9553 | } | |
9554 | } | |
9555 | ||
9556 | goto unknown; | |
9557 | ||
9558 | case 'c': | |
9559 | switch (name[1]) | |
9560 | { | |
9561 | case 'l': | |
9562 | if (name[2] == 'o' && | |
9563 | name[3] == 's' && | |
9564 | name[4] == 'e' && | |
9565 | name[5] == 'd' && | |
9566 | name[6] == 'i' && | |
9567 | name[7] == 'r') | |
9568 | { /* closedir */ | |
9569 | return -KEY_closedir; | |
9570 | } | |
9571 | ||
9572 | goto unknown; | |
9573 | ||
9574 | case 'o': | |
9575 | if (name[2] == 'n' && | |
9576 | name[3] == 't' && | |
9577 | name[4] == 'i' && | |
9578 | name[5] == 'n' && | |
9579 | name[6] == 'u' && | |
9580 | name[7] == 'e') | |
9581 | { /* continue */ | |
9582 | return -KEY_continue; | |
9583 | } | |
9584 | ||
9585 | goto unknown; | |
9586 | ||
9587 | default: | |
9588 | goto unknown; | |
9589 | } | |
9590 | ||
9591 | case 'd': | |
9592 | if (name[1] == 'b' && | |
9593 | name[2] == 'm' && | |
9594 | name[3] == 'c' && | |
9595 | name[4] == 'l' && | |
9596 | name[5] == 'o' && | |
9597 | name[6] == 's' && | |
9598 | name[7] == 'e') | |
9599 | { /* dbmclose */ | |
9600 | return -KEY_dbmclose; | |
9601 | } | |
9602 | ||
9603 | goto unknown; | |
9604 | ||
9605 | case 'e': | |
9606 | if (name[1] == 'n' && | |
9607 | name[2] == 'd') | |
9608 | { | |
9609 | switch (name[3]) | |
9610 | { | |
9611 | case 'g': | |
9612 | if (name[4] == 'r' && | |
9613 | name[5] == 'e' && | |
9614 | name[6] == 'n' && | |
9615 | name[7] == 't') | |
9616 | { /* endgrent */ | |
9617 | return -KEY_endgrent; | |
9618 | } | |
9619 | ||
9620 | goto unknown; | |
9621 | ||
9622 | case 'p': | |
9623 | if (name[4] == 'w' && | |
9624 | name[5] == 'e' && | |
9625 | name[6] == 'n' && | |
9626 | name[7] == 't') | |
9627 | { /* endpwent */ | |
9628 | return -KEY_endpwent; | |
9629 | } | |
9630 | ||
9631 | goto unknown; | |
9632 | ||
9633 | default: | |
9634 | goto unknown; | |
9635 | } | |
9636 | } | |
9637 | ||
9638 | goto unknown; | |
9639 | ||
9640 | case 'f': | |
9641 | if (name[1] == 'o' && | |
9642 | name[2] == 'r' && | |
9643 | name[3] == 'm' && | |
9644 | name[4] == 'l' && | |
9645 | name[5] == 'i' && | |
9646 | name[6] == 'n' && | |
9647 | name[7] == 'e') | |
9648 | { /* formline */ | |
9649 | return -KEY_formline; | |
9650 | } | |
9651 | ||
9652 | goto unknown; | |
9653 | ||
9654 | case 'g': | |
9655 | if (name[1] == 'e' && | |
9656 | name[2] == 't') | |
9657 | { | |
9658 | switch (name[3]) | |
9659 | { | |
9660 | case 'g': | |
9661 | if (name[4] == 'r') | |
9662 | { | |
9663 | switch (name[5]) | |
9664 | { | |
9665 | case 'e': | |
9666 | if (name[6] == 'n' && | |
9667 | name[7] == 't') | |
9668 | { /* getgrent */ | |
9669 | return -KEY_getgrent; | |
9670 | } | |
9671 | ||
9672 | goto unknown; | |
9673 | ||
9674 | case 'g': | |
9675 | if (name[6] == 'i' && | |
9676 | name[7] == 'd') | |
9677 | { /* getgrgid */ | |
9678 | return -KEY_getgrgid; | |
9679 | } | |
9680 | ||
9681 | goto unknown; | |
9682 | ||
9683 | case 'n': | |
9684 | if (name[6] == 'a' && | |
9685 | name[7] == 'm') | |
9686 | { /* getgrnam */ | |
9687 | return -KEY_getgrnam; | |
9688 | } | |
9689 | ||
9690 | goto unknown; | |
9691 | ||
9692 | default: | |
9693 | goto unknown; | |
9694 | } | |
9695 | } | |
9696 | ||
9697 | goto unknown; | |
9698 | ||
9699 | case 'l': | |
9700 | if (name[4] == 'o' && | |
9701 | name[5] == 'g' && | |
9702 | name[6] == 'i' && | |
9703 | name[7] == 'n') | |
9704 | { /* getlogin */ | |
9705 | return -KEY_getlogin; | |
9706 | } | |
9707 | ||
9708 | goto unknown; | |
9709 | ||
9710 | case 'p': | |
9711 | if (name[4] == 'w') | |
9712 | { | |
9713 | switch (name[5]) | |
9714 | { | |
9715 | case 'e': | |
9716 | if (name[6] == 'n' && | |
9717 | name[7] == 't') | |
9718 | { /* getpwent */ | |
9719 | return -KEY_getpwent; | |
9720 | } | |
9721 | ||
9722 | goto unknown; | |
9723 | ||
9724 | case 'n': | |
9725 | if (name[6] == 'a' && | |
9726 | name[7] == 'm') | |
9727 | { /* getpwnam */ | |
9728 | return -KEY_getpwnam; | |
9729 | } | |
9730 | ||
9731 | goto unknown; | |
9732 | ||
9733 | case 'u': | |
9734 | if (name[6] == 'i' && | |
9735 | name[7] == 'd') | |
9736 | { /* getpwuid */ | |
9737 | return -KEY_getpwuid; | |
9738 | } | |
9739 | ||
9740 | goto unknown; | |
9741 | ||
9742 | default: | |
9743 | goto unknown; | |
9744 | } | |
9745 | } | |
9746 | ||
9747 | goto unknown; | |
9748 | ||
9749 | default: | |
9750 | goto unknown; | |
9751 | } | |
9752 | } | |
9753 | ||
9754 | goto unknown; | |
9755 | ||
9756 | case 'r': | |
9757 | if (name[1] == 'e' && | |
9758 | name[2] == 'a' && | |
9759 | name[3] == 'd') | |
9760 | { | |
9761 | switch (name[4]) | |
9762 | { | |
9763 | case 'l': | |
9764 | if (name[5] == 'i' && | |
9765 | name[6] == 'n') | |
9766 | { | |
9767 | switch (name[7]) | |
9768 | { | |
9769 | case 'e': | |
9770 | { /* readline */ | |
9771 | return -KEY_readline; | |
9772 | } | |
9773 | ||
4c3bbe0f MHM |
9774 | case 'k': |
9775 | { /* readlink */ | |
9776 | return -KEY_readlink; | |
9777 | } | |
9778 | ||
4c3bbe0f MHM |
9779 | default: |
9780 | goto unknown; | |
9781 | } | |
9782 | } | |
9783 | ||
9784 | goto unknown; | |
9785 | ||
9786 | case 'p': | |
9787 | if (name[5] == 'i' && | |
9788 | name[6] == 'p' && | |
9789 | name[7] == 'e') | |
9790 | { /* readpipe */ | |
9791 | return -KEY_readpipe; | |
9792 | } | |
9793 | ||
9794 | goto unknown; | |
9795 | ||
9796 | default: | |
9797 | goto unknown; | |
9798 | } | |
9799 | } | |
9800 | ||
9801 | goto unknown; | |
9802 | ||
9803 | case 's': | |
9804 | switch (name[1]) | |
9805 | { | |
9806 | case 'e': | |
9807 | if (name[2] == 't') | |
9808 | { | |
9809 | switch (name[3]) | |
9810 | { | |
9811 | case 'g': | |
9812 | if (name[4] == 'r' && | |
9813 | name[5] == 'e' && | |
9814 | name[6] == 'n' && | |
9815 | name[7] == 't') | |
9816 | { /* setgrent */ | |
9817 | return -KEY_setgrent; | |
9818 | } | |
9819 | ||
9820 | goto unknown; | |
9821 | ||
9822 | case 'p': | |
9823 | if (name[4] == 'w' && | |
9824 | name[5] == 'e' && | |
9825 | name[6] == 'n' && | |
9826 | name[7] == 't') | |
9827 | { /* setpwent */ | |
9828 | return -KEY_setpwent; | |
9829 | } | |
9830 | ||
9831 | goto unknown; | |
9832 | ||
9833 | default: | |
9834 | goto unknown; | |
9835 | } | |
9836 | } | |
9837 | ||
9838 | goto unknown; | |
9839 | ||
9840 | case 'h': | |
9841 | switch (name[2]) | |
9842 | { | |
9843 | case 'm': | |
9844 | if (name[3] == 'w' && | |
9845 | name[4] == 'r' && | |
9846 | name[5] == 'i' && | |
9847 | name[6] == 't' && | |
9848 | name[7] == 'e') | |
9849 | { /* shmwrite */ | |
9850 | return -KEY_shmwrite; | |
9851 | } | |
9852 | ||
9853 | goto unknown; | |
9854 | ||
9855 | case 'u': | |
9856 | if (name[3] == 't' && | |
9857 | name[4] == 'd' && | |
9858 | name[5] == 'o' && | |
9859 | name[6] == 'w' && | |
9860 | name[7] == 'n') | |
9861 | { /* shutdown */ | |
9862 | return -KEY_shutdown; | |
9863 | } | |
9864 | ||
9865 | goto unknown; | |
9866 | ||
9867 | default: | |
9868 | goto unknown; | |
9869 | } | |
9870 | ||
9871 | case 'y': | |
9872 | if (name[2] == 's' && | |
9873 | name[3] == 'w' && | |
9874 | name[4] == 'r' && | |
9875 | name[5] == 'i' && | |
9876 | name[6] == 't' && | |
9877 | name[7] == 'e') | |
9878 | { /* syswrite */ | |
9879 | return -KEY_syswrite; | |
9880 | } | |
9881 | ||
9882 | goto unknown; | |
9883 | ||
9884 | default: | |
9885 | goto unknown; | |
9886 | } | |
9887 | ||
9888 | case 't': | |
9889 | if (name[1] == 'r' && | |
9890 | name[2] == 'u' && | |
9891 | name[3] == 'n' && | |
9892 | name[4] == 'c' && | |
9893 | name[5] == 'a' && | |
9894 | name[6] == 't' && | |
9895 | name[7] == 'e') | |
9896 | { /* truncate */ | |
9897 | return -KEY_truncate; | |
9898 | } | |
9899 | ||
9900 | goto unknown; | |
9901 | ||
9902 | default: | |
9903 | goto unknown; | |
9904 | } | |
9905 | ||
3c10abe3 | 9906 | case 9: /* 9 tokens of length 9 */ |
4c3bbe0f MHM |
9907 | switch (name[0]) |
9908 | { | |
3c10abe3 AG |
9909 | case 'U': |
9910 | if (name[1] == 'N' && | |
9911 | name[2] == 'I' && | |
9912 | name[3] == 'T' && | |
9913 | name[4] == 'C' && | |
9914 | name[5] == 'H' && | |
9915 | name[6] == 'E' && | |
9916 | name[7] == 'C' && | |
9917 | name[8] == 'K') | |
9918 | { /* UNITCHECK */ | |
9919 | return KEY_UNITCHECK; | |
9920 | } | |
9921 | ||
9922 | goto unknown; | |
9923 | ||
4c3bbe0f MHM |
9924 | case 'e': |
9925 | if (name[1] == 'n' && | |
9926 | name[2] == 'd' && | |
9927 | name[3] == 'n' && | |
9928 | name[4] == 'e' && | |
9929 | name[5] == 't' && | |
9930 | name[6] == 'e' && | |
9931 | name[7] == 'n' && | |
9932 | name[8] == 't') | |
9933 | { /* endnetent */ | |
9934 | return -KEY_endnetent; | |
9935 | } | |
9936 | ||
9937 | goto unknown; | |
9938 | ||
9939 | case 'g': | |
9940 | if (name[1] == 'e' && | |
9941 | name[2] == 't' && | |
9942 | name[3] == 'n' && | |
9943 | name[4] == 'e' && | |
9944 | name[5] == 't' && | |
9945 | name[6] == 'e' && | |
9946 | name[7] == 'n' && | |
9947 | name[8] == 't') | |
9948 | { /* getnetent */ | |
9949 | return -KEY_getnetent; | |
9950 | } | |
9951 | ||
9952 | goto unknown; | |
9953 | ||
9954 | case 'l': | |
9955 | if (name[1] == 'o' && | |
9956 | name[2] == 'c' && | |
9957 | name[3] == 'a' && | |
9958 | name[4] == 'l' && | |
9959 | name[5] == 't' && | |
9960 | name[6] == 'i' && | |
9961 | name[7] == 'm' && | |
9962 | name[8] == 'e') | |
9963 | { /* localtime */ | |
9964 | return -KEY_localtime; | |
9965 | } | |
9966 | ||
9967 | goto unknown; | |
9968 | ||
9969 | case 'p': | |
9970 | if (name[1] == 'r' && | |
9971 | name[2] == 'o' && | |
9972 | name[3] == 't' && | |
9973 | name[4] == 'o' && | |
9974 | name[5] == 't' && | |
9975 | name[6] == 'y' && | |
9976 | name[7] == 'p' && | |
9977 | name[8] == 'e') | |
9978 | { /* prototype */ | |
9979 | return KEY_prototype; | |
9980 | } | |
9981 | ||
9982 | goto unknown; | |
9983 | ||
9984 | case 'q': | |
9985 | if (name[1] == 'u' && | |
9986 | name[2] == 'o' && | |
9987 | name[3] == 't' && | |
9988 | name[4] == 'e' && | |
9989 | name[5] == 'm' && | |
9990 | name[6] == 'e' && | |
9991 | name[7] == 't' && | |
9992 | name[8] == 'a') | |
9993 | { /* quotemeta */ | |
9994 | return -KEY_quotemeta; | |
9995 | } | |
9996 | ||
9997 | goto unknown; | |
9998 | ||
9999 | case 'r': | |
10000 | if (name[1] == 'e' && | |
10001 | name[2] == 'w' && | |
10002 | name[3] == 'i' && | |
10003 | name[4] == 'n' && | |
10004 | name[5] == 'd' && | |
10005 | name[6] == 'd' && | |
10006 | name[7] == 'i' && | |
10007 | name[8] == 'r') | |
10008 | { /* rewinddir */ | |
10009 | return -KEY_rewinddir; | |
10010 | } | |
10011 | ||
10012 | goto unknown; | |
10013 | ||
10014 | case 's': | |
10015 | if (name[1] == 'e' && | |
10016 | name[2] == 't' && | |
10017 | name[3] == 'n' && | |
10018 | name[4] == 'e' && | |
10019 | name[5] == 't' && | |
10020 | name[6] == 'e' && | |
10021 | name[7] == 'n' && | |
10022 | name[8] == 't') | |
10023 | { /* setnetent */ | |
10024 | return -KEY_setnetent; | |
10025 | } | |
10026 | ||
10027 | goto unknown; | |
10028 | ||
10029 | case 'w': | |
10030 | if (name[1] == 'a' && | |
10031 | name[2] == 'n' && | |
10032 | name[3] == 't' && | |
10033 | name[4] == 'a' && | |
10034 | name[5] == 'r' && | |
10035 | name[6] == 'r' && | |
10036 | name[7] == 'a' && | |
10037 | name[8] == 'y') | |
10038 | { /* wantarray */ | |
10039 | return -KEY_wantarray; | |
10040 | } | |
10041 | ||
10042 | goto unknown; | |
10043 | ||
10044 | default: | |
10045 | goto unknown; | |
10046 | } | |
10047 | ||
10048 | case 10: /* 9 tokens of length 10 */ | |
10049 | switch (name[0]) | |
10050 | { | |
10051 | case 'e': | |
10052 | if (name[1] == 'n' && | |
10053 | name[2] == 'd') | |
10054 | { | |
10055 | switch (name[3]) | |
10056 | { | |
10057 | case 'h': | |
10058 | if (name[4] == 'o' && | |
10059 | name[5] == 's' && | |
10060 | name[6] == 't' && | |
10061 | name[7] == 'e' && | |
10062 | name[8] == 'n' && | |
10063 | name[9] == 't') | |
10064 | { /* endhostent */ | |
10065 | return -KEY_endhostent; | |
10066 | } | |
10067 | ||
10068 | goto unknown; | |
10069 | ||
10070 | case 's': | |
10071 | if (name[4] == 'e' && | |
10072 | name[5] == 'r' && | |
10073 | name[6] == 'v' && | |
10074 | name[7] == 'e' && | |
10075 | name[8] == 'n' && | |
10076 | name[9] == 't') | |
10077 | { /* endservent */ | |
10078 | return -KEY_endservent; | |
10079 | } | |
10080 | ||
10081 | goto unknown; | |
10082 | ||
10083 | default: | |
10084 | goto unknown; | |
10085 | } | |
10086 | } | |
10087 | ||
10088 | goto unknown; | |
10089 | ||
10090 | case 'g': | |
10091 | if (name[1] == 'e' && | |
10092 | name[2] == 't') | |
10093 | { | |
10094 | switch (name[3]) | |
10095 | { | |
10096 | case 'h': | |
10097 | if (name[4] == 'o' && | |
10098 | name[5] == 's' && | |
10099 | name[6] == 't' && | |
10100 | name[7] == 'e' && | |
10101 | name[8] == 'n' && | |
10102 | name[9] == 't') | |
10103 | { /* gethostent */ | |
10104 | return -KEY_gethostent; | |
10105 | } | |
10106 | ||
10107 | goto unknown; | |
10108 | ||
10109 | case 's': | |
10110 | switch (name[4]) | |
10111 | { | |
10112 | case 'e': | |
10113 | if (name[5] == 'r' && | |
10114 | name[6] == 'v' && | |
10115 | name[7] == 'e' && | |
10116 | name[8] == 'n' && | |
10117 | name[9] == 't') | |
10118 | { /* getservent */ | |
10119 | return -KEY_getservent; | |
10120 | } | |
10121 | ||
10122 | goto unknown; | |
10123 | ||
10124 | case 'o': | |
10125 | if (name[5] == 'c' && | |
10126 | name[6] == 'k' && | |
10127 | name[7] == 'o' && | |
10128 | name[8] == 'p' && | |
10129 | name[9] == 't') | |
10130 | { /* getsockopt */ | |
10131 | return -KEY_getsockopt; | |
10132 | } | |
10133 | ||
10134 | goto unknown; | |
10135 | ||
10136 | default: | |
10137 | goto unknown; | |
10138 | } | |
10139 | ||
10140 | default: | |
10141 | goto unknown; | |
10142 | } | |
10143 | } | |
10144 | ||
10145 | goto unknown; | |
10146 | ||
10147 | case 's': | |
10148 | switch (name[1]) | |
10149 | { | |
10150 | case 'e': | |
10151 | if (name[2] == 't') | |
10152 | { | |
10153 | switch (name[3]) | |
10154 | { | |
10155 | case 'h': | |
10156 | if (name[4] == 'o' && | |
10157 | name[5] == 's' && | |
10158 | name[6] == 't' && | |
10159 | name[7] == 'e' && | |
10160 | name[8] == 'n' && | |
10161 | name[9] == 't') | |
10162 | { /* sethostent */ | |
10163 | return -KEY_sethostent; | |
10164 | } | |
10165 | ||
10166 | goto unknown; | |
10167 | ||
10168 | case 's': | |
10169 | switch (name[4]) | |
10170 | { | |
10171 | case 'e': | |
10172 | if (name[5] == 'r' && | |
10173 | name[6] == 'v' && | |
10174 | name[7] == 'e' && | |
10175 | name[8] == 'n' && | |
10176 | name[9] == 't') | |
10177 | { /* setservent */ | |
10178 | return -KEY_setservent; | |
10179 | } | |
10180 | ||
10181 | goto unknown; | |
10182 | ||
10183 | case 'o': | |
10184 | if (name[5] == 'c' && | |
10185 | name[6] == 'k' && | |
10186 | name[7] == 'o' && | |
10187 | name[8] == 'p' && | |
10188 | name[9] == 't') | |
10189 | { /* setsockopt */ | |
10190 | return -KEY_setsockopt; | |
10191 | } | |
10192 | ||
10193 | goto unknown; | |
10194 | ||
10195 | default: | |
10196 | goto unknown; | |
10197 | } | |
10198 | ||
10199 | default: | |
10200 | goto unknown; | |
10201 | } | |
10202 | } | |
10203 | ||
10204 | goto unknown; | |
10205 | ||
10206 | case 'o': | |
10207 | if (name[2] == 'c' && | |
10208 | name[3] == 'k' && | |
10209 | name[4] == 'e' && | |
10210 | name[5] == 't' && | |
10211 | name[6] == 'p' && | |
10212 | name[7] == 'a' && | |
10213 | name[8] == 'i' && | |
10214 | name[9] == 'r') | |
10215 | { /* socketpair */ | |
10216 | return -KEY_socketpair; | |
10217 | } | |
10218 | ||
10219 | goto unknown; | |
10220 | ||
10221 | default: | |
10222 | goto unknown; | |
10223 | } | |
10224 | ||
10225 | default: | |
10226 | goto unknown; | |
e2e1dd5a | 10227 | } |
4c3bbe0f MHM |
10228 | |
10229 | case 11: /* 8 tokens of length 11 */ | |
10230 | switch (name[0]) | |
10231 | { | |
10232 | case '_': | |
10233 | if (name[1] == '_' && | |
10234 | name[2] == 'P' && | |
10235 | name[3] == 'A' && | |
10236 | name[4] == 'C' && | |
10237 | name[5] == 'K' && | |
10238 | name[6] == 'A' && | |
10239 | name[7] == 'G' && | |
10240 | name[8] == 'E' && | |
10241 | name[9] == '_' && | |
10242 | name[10] == '_') | |
10243 | { /* __PACKAGE__ */ | |
10244 | return -KEY___PACKAGE__; | |
10245 | } | |
10246 | ||
10247 | goto unknown; | |
10248 | ||
10249 | case 'e': | |
10250 | if (name[1] == 'n' && | |
10251 | name[2] == 'd' && | |
10252 | name[3] == 'p' && | |
10253 | name[4] == 'r' && | |
10254 | name[5] == 'o' && | |
10255 | name[6] == 't' && | |
10256 | name[7] == 'o' && | |
10257 | name[8] == 'e' && | |
10258 | name[9] == 'n' && | |
10259 | name[10] == 't') | |
10260 | { /* endprotoent */ | |
10261 | return -KEY_endprotoent; | |
10262 | } | |
10263 | ||
10264 | goto unknown; | |
10265 | ||
10266 | case 'g': | |
10267 | if (name[1] == 'e' && | |
10268 | name[2] == 't') | |
10269 | { | |
10270 | switch (name[3]) | |
10271 | { | |
10272 | case 'p': | |
10273 | switch (name[4]) | |
10274 | { | |
10275 | case 'e': | |
10276 | if (name[5] == 'e' && | |
10277 | name[6] == 'r' && | |
10278 | name[7] == 'n' && | |
10279 | name[8] == 'a' && | |
10280 | name[9] == 'm' && | |
10281 | name[10] == 'e') | |
10282 | { /* getpeername */ | |
10283 | return -KEY_getpeername; | |
10284 | } | |
10285 | ||
10286 | goto unknown; | |
10287 | ||
10288 | case 'r': | |
10289 | switch (name[5]) | |
10290 | { | |
10291 | case 'i': | |
10292 | if (name[6] == 'o' && | |
10293 | name[7] == 'r' && | |
10294 | name[8] == 'i' && | |
10295 | name[9] == 't' && | |
10296 | name[10] == 'y') | |
10297 | { /* getpriority */ | |
10298 | return -KEY_getpriority; | |
10299 | } | |
10300 | ||
10301 | goto unknown; | |
10302 | ||
10303 | case 'o': | |
10304 | if (name[6] == 't' && | |
10305 | name[7] == 'o' && | |
10306 | name[8] == 'e' && | |
10307 | name[9] == 'n' && | |
10308 | name[10] == 't') | |
10309 | { /* getprotoent */ | |
10310 | return -KEY_getprotoent; | |
10311 | } | |
10312 | ||
10313 | goto unknown; | |
10314 | ||
10315 | default: | |
10316 | goto unknown; | |
10317 | } | |
10318 | ||
10319 | default: | |
10320 | goto unknown; | |
10321 | } | |
10322 | ||
10323 | case 's': | |
10324 | if (name[4] == 'o' && | |
10325 | name[5] == 'c' && | |
10326 | name[6] == 'k' && | |
10327 | name[7] == 'n' && | |
10328 | name[8] == 'a' && | |
10329 | name[9] == 'm' && | |
10330 | name[10] == 'e') | |
10331 | { /* getsockname */ | |
10332 | return -KEY_getsockname; | |
10333 | } | |
10334 | ||
10335 | goto unknown; | |
10336 | ||
10337 | default: | |
10338 | goto unknown; | |
10339 | } | |
10340 | } | |
10341 | ||
10342 | goto unknown; | |
10343 | ||
10344 | case 's': | |
10345 | if (name[1] == 'e' && | |
10346 | name[2] == 't' && | |
10347 | name[3] == 'p' && | |
10348 | name[4] == 'r') | |
10349 | { | |
10350 | switch (name[5]) | |
10351 | { | |
10352 | case 'i': | |
10353 | if (name[6] == 'o' && | |
10354 | name[7] == 'r' && | |
10355 | name[8] == 'i' && | |
10356 | name[9] == 't' && | |
10357 | name[10] == 'y') | |
10358 | { /* setpriority */ | |
10359 | return -KEY_setpriority; | |
10360 | } | |
10361 | ||
10362 | goto unknown; | |
10363 | ||
10364 | case 'o': | |
10365 | if (name[6] == 't' && | |
10366 | name[7] == 'o' && | |
10367 | name[8] == 'e' && | |
10368 | name[9] == 'n' && | |
10369 | name[10] == 't') | |
10370 | { /* setprotoent */ | |
10371 | return -KEY_setprotoent; | |
10372 | } | |
10373 | ||
10374 | goto unknown; | |
10375 | ||
10376 | default: | |
10377 | goto unknown; | |
10378 | } | |
10379 | } | |
10380 | ||
10381 | goto unknown; | |
10382 | ||
10383 | default: | |
10384 | goto unknown; | |
e2e1dd5a | 10385 | } |
4c3bbe0f MHM |
10386 | |
10387 | case 12: /* 2 tokens of length 12 */ | |
10388 | if (name[0] == 'g' && | |
10389 | name[1] == 'e' && | |
10390 | name[2] == 't' && | |
10391 | name[3] == 'n' && | |
10392 | name[4] == 'e' && | |
10393 | name[5] == 't' && | |
10394 | name[6] == 'b' && | |
10395 | name[7] == 'y') | |
10396 | { | |
10397 | switch (name[8]) | |
10398 | { | |
10399 | case 'a': | |
10400 | if (name[9] == 'd' && | |
10401 | name[10] == 'd' && | |
10402 | name[11] == 'r') | |
10403 | { /* getnetbyaddr */ | |
10404 | return -KEY_getnetbyaddr; | |
10405 | } | |
10406 | ||
10407 | goto unknown; | |
10408 | ||
10409 | case 'n': | |
10410 | if (name[9] == 'a' && | |
10411 | name[10] == 'm' && | |
10412 | name[11] == 'e') | |
10413 | { /* getnetbyname */ | |
10414 | return -KEY_getnetbyname; | |
10415 | } | |
10416 | ||
10417 | goto unknown; | |
10418 | ||
10419 | default: | |
10420 | goto unknown; | |
10421 | } | |
e2e1dd5a | 10422 | } |
4c3bbe0f MHM |
10423 | |
10424 | goto unknown; | |
10425 | ||
10426 | case 13: /* 4 tokens of length 13 */ | |
10427 | if (name[0] == 'g' && | |
10428 | name[1] == 'e' && | |
10429 | name[2] == 't') | |
10430 | { | |
10431 | switch (name[3]) | |
10432 | { | |
10433 | case 'h': | |
10434 | if (name[4] == 'o' && | |
10435 | name[5] == 's' && | |
10436 | name[6] == 't' && | |
10437 | name[7] == 'b' && | |
10438 | name[8] == 'y') | |
10439 | { | |
10440 | switch (name[9]) | |
10441 | { | |
10442 | case 'a': | |
10443 | if (name[10] == 'd' && | |
10444 | name[11] == 'd' && | |
10445 | name[12] == 'r') | |
10446 | { /* gethostbyaddr */ | |
10447 | return -KEY_gethostbyaddr; | |
10448 | } | |
10449 | ||
10450 | goto unknown; | |
10451 | ||
10452 | case 'n': | |
10453 | if (name[10] == 'a' && | |
10454 | name[11] == 'm' && | |
10455 | name[12] == 'e') | |
10456 | { /* gethostbyname */ | |
10457 | return -KEY_gethostbyname; | |
10458 | } | |
10459 | ||
10460 | goto unknown; | |
10461 | ||
10462 | default: | |
10463 | goto unknown; | |
10464 | } | |
10465 | } | |
10466 | ||
10467 | goto unknown; | |
10468 | ||
10469 | case 's': | |
10470 | if (name[4] == 'e' && | |
10471 | name[5] == 'r' && | |
10472 | name[6] == 'v' && | |
10473 | name[7] == 'b' && | |
10474 | name[8] == 'y') | |
10475 | { | |
10476 | switch (name[9]) | |
10477 | { | |
10478 | case 'n': | |
10479 | if (name[10] == 'a' && | |
10480 | name[11] == 'm' && | |
10481 | name[12] == 'e') | |
10482 | { /* getservbyname */ | |
10483 | return -KEY_getservbyname; | |
10484 | } | |
10485 | ||
10486 | goto unknown; | |
10487 | ||
10488 | case 'p': | |
10489 | if (name[10] == 'o' && | |
10490 | name[11] == 'r' && | |
10491 | name[12] == 't') | |
10492 | { /* getservbyport */ | |
10493 | return -KEY_getservbyport; | |
10494 | } | |
10495 | ||
10496 | goto unknown; | |
10497 | ||
10498 | default: | |
10499 | goto unknown; | |
10500 | } | |
10501 | } | |
10502 | ||
10503 | goto unknown; | |
10504 | ||
10505 | default: | |
10506 | goto unknown; | |
10507 | } | |
e2e1dd5a | 10508 | } |
4c3bbe0f MHM |
10509 | |
10510 | goto unknown; | |
10511 | ||
10512 | case 14: /* 1 tokens of length 14 */ | |
10513 | if (name[0] == 'g' && | |
10514 | name[1] == 'e' && | |
10515 | name[2] == 't' && | |
10516 | name[3] == 'p' && | |
10517 | name[4] == 'r' && | |
10518 | name[5] == 'o' && | |
10519 | name[6] == 't' && | |
10520 | name[7] == 'o' && | |
10521 | name[8] == 'b' && | |
10522 | name[9] == 'y' && | |
10523 | name[10] == 'n' && | |
10524 | name[11] == 'a' && | |
10525 | name[12] == 'm' && | |
10526 | name[13] == 'e') | |
10527 | { /* getprotobyname */ | |
10528 | return -KEY_getprotobyname; | |
10529 | } | |
10530 | ||
10531 | goto unknown; | |
10532 | ||
10533 | case 16: /* 1 tokens of length 16 */ | |
10534 | if (name[0] == 'g' && | |
10535 | name[1] == 'e' && | |
10536 | name[2] == 't' && | |
10537 | name[3] == 'p' && | |
10538 | name[4] == 'r' && | |
10539 | name[5] == 'o' && | |
10540 | name[6] == 't' && | |
10541 | name[7] == 'o' && | |
10542 | name[8] == 'b' && | |
10543 | name[9] == 'y' && | |
10544 | name[10] == 'n' && | |
10545 | name[11] == 'u' && | |
10546 | name[12] == 'm' && | |
10547 | name[13] == 'b' && | |
10548 | name[14] == 'e' && | |
10549 | name[15] == 'r') | |
10550 | { /* getprotobynumber */ | |
10551 | return -KEY_getprotobynumber; | |
10552 | } | |
10553 | ||
10554 | goto unknown; | |
10555 | ||
10556 | default: | |
10557 | goto unknown; | |
e2e1dd5a | 10558 | } |
4c3bbe0f MHM |
10559 | |
10560 | unknown: | |
e2e1dd5a | 10561 | return 0; |
a687059c LW |
10562 | } |
10563 | ||
76e3520e | 10564 | STATIC void |
c94115d8 | 10565 | S_checkcomma(pTHX_ const char *s, const char *name, const char *what) |
a687059c | 10566 | { |
97aff369 | 10567 | dVAR; |
2f3197b3 | 10568 | |
7918f24d NC |
10569 | PERL_ARGS_ASSERT_CHECKCOMMA; |
10570 | ||
d008e5eb | 10571 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
10572 | if (ckWARN(WARN_SYNTAX)) { |
10573 | int level = 1; | |
26ff0806 | 10574 | const char *w; |
d008e5eb GS |
10575 | for (w = s+2; *w && level; w++) { |
10576 | if (*w == '(') | |
10577 | ++level; | |
10578 | else if (*w == ')') | |
10579 | --level; | |
10580 | } | |
888fea98 NC |
10581 | while (isSPACE(*w)) |
10582 | ++w; | |
b1439985 RGS |
10583 | /* the list of chars below is for end of statements or |
10584 | * block / parens, boolean operators (&&, ||, //) and branch | |
10585 | * constructs (or, and, if, until, unless, while, err, for). | |
10586 | * Not a very solid hack... */ | |
10587 | if (!*w || !strchr(";&/|})]oaiuwef!=", *w)) | |
9014280d | 10588 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 10589 | "%s (...) interpreted as function",name); |
d008e5eb | 10590 | } |
2f3197b3 | 10591 | } |
3280af22 | 10592 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 10593 | s++; |
a687059c LW |
10594 | if (*s == '(') |
10595 | s++; | |
3280af22 | 10596 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10597 | s++; |
7e2040f0 | 10598 | if (isIDFIRST_lazy_if(s,UTF)) { |
26ff0806 | 10599 | const char * const w = s++; |
7e2040f0 | 10600 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 10601 | s++; |
3280af22 | 10602 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10603 | s++; |
e929a76b | 10604 | if (*s == ',') { |
c94115d8 | 10605 | GV* gv; |
5458a98a | 10606 | if (keyword(w, s - w, 0)) |
e929a76b | 10607 | return; |
c94115d8 NC |
10608 | |
10609 | gv = gv_fetchpvn_flags(w, s - w, 0, SVt_PVCV); | |
10610 | if (gv && GvCVu(gv)) | |
abbb3198 | 10611 | return; |
cea2e8a9 | 10612 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
10613 | } |
10614 | } | |
10615 | } | |
10616 | ||
423cee85 JH |
10617 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
10618 | Best used as sv=new_constant(..., sv, ...). | |
10619 | If s, pv are NULL, calls subroutine with one argument, | |
10620 | and type is used with error messages only. */ | |
10621 | ||
b3ac6de7 | 10622 | STATIC SV * |
eb0d8d16 NC |
10623 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, STRLEN keylen, |
10624 | SV *sv, SV *pv, const char *type, STRLEN typelen) | |
b3ac6de7 | 10625 | { |
27da23d5 | 10626 | dVAR; dSP; |
890ce7af | 10627 | HV * const table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 10628 | SV *res; |
b3ac6de7 IZ |
10629 | SV **cvp; |
10630 | SV *cv, *typesv; | |
89e33a05 | 10631 | const char *why1 = "", *why2 = "", *why3 = ""; |
4e553d73 | 10632 | |
7918f24d NC |
10633 | PERL_ARGS_ASSERT_NEW_CONSTANT; |
10634 | ||
f0af216f | 10635 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
10636 | SV *msg; |
10637 | ||
10edeb5d JH |
10638 | why2 = (const char *) |
10639 | (strEQ(key,"charnames") | |
10640 | ? "(possibly a missing \"use charnames ...\")" | |
10641 | : ""); | |
4e553d73 | 10642 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
10643 | (type ? type: "undef"), why2); |
10644 | ||
10645 | /* This is convoluted and evil ("goto considered harmful") | |
10646 | * but I do not understand the intricacies of all the different | |
10647 | * failure modes of %^H in here. The goal here is to make | |
10648 | * the most probable error message user-friendly. --jhi */ | |
10649 | ||
10650 | goto msgdone; | |
10651 | ||
423cee85 | 10652 | report: |
4e553d73 | 10653 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 10654 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 10655 | msgdone: |
95a20fc0 | 10656 | yyerror(SvPVX_const(msg)); |
423cee85 JH |
10657 | SvREFCNT_dec(msg); |
10658 | return sv; | |
10659 | } | |
eb0d8d16 | 10660 | cvp = hv_fetch(table, key, keylen, FALSE); |
b3ac6de7 | 10661 | if (!cvp || !SvOK(*cvp)) { |
423cee85 JH |
10662 | why1 = "$^H{"; |
10663 | why2 = key; | |
f0af216f | 10664 | why3 = "} is not defined"; |
423cee85 | 10665 | goto report; |
b3ac6de7 IZ |
10666 | } |
10667 | sv_2mortal(sv); /* Parent created it permanently */ | |
10668 | cv = *cvp; | |
423cee85 | 10669 | if (!pv && s) |
59cd0e26 | 10670 | pv = newSVpvn_flags(s, len, SVs_TEMP); |
423cee85 | 10671 | if (type && pv) |
59cd0e26 | 10672 | typesv = newSVpvn_flags(type, typelen, SVs_TEMP); |
b3ac6de7 | 10673 | else |
423cee85 | 10674 | typesv = &PL_sv_undef; |
4e553d73 | 10675 | |
e788e7d3 | 10676 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
10677 | ENTER ; |
10678 | SAVETMPS; | |
4e553d73 | 10679 | |
423cee85 | 10680 | PUSHMARK(SP) ; |
a5845cb7 | 10681 | EXTEND(sp, 3); |
423cee85 JH |
10682 | if (pv) |
10683 | PUSHs(pv); | |
b3ac6de7 | 10684 | PUSHs(sv); |
423cee85 JH |
10685 | if (pv) |
10686 | PUSHs(typesv); | |
b3ac6de7 | 10687 | PUTBACK; |
423cee85 | 10688 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 10689 | |
423cee85 | 10690 | SPAGAIN ; |
4e553d73 | 10691 | |
423cee85 | 10692 | /* Check the eval first */ |
9b0e499b | 10693 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
396482e1 | 10694 | sv_catpvs(ERRSV, "Propagated"); |
8b6b16e7 | 10695 | yyerror(SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */ |
e1f15930 | 10696 | (void)POPs; |
b37c2d43 | 10697 | res = SvREFCNT_inc_simple(sv); |
423cee85 JH |
10698 | } |
10699 | else { | |
10700 | res = POPs; | |
b37c2d43 | 10701 | SvREFCNT_inc_simple_void(res); |
423cee85 | 10702 | } |
4e553d73 | 10703 | |
423cee85 JH |
10704 | PUTBACK ; |
10705 | FREETMPS ; | |
10706 | LEAVE ; | |
b3ac6de7 | 10707 | POPSTACK; |
4e553d73 | 10708 | |
b3ac6de7 | 10709 | if (!SvOK(res)) { |
423cee85 JH |
10710 | why1 = "Call to &{$^H{"; |
10711 | why2 = key; | |
f0af216f | 10712 | why3 = "}} did not return a defined value"; |
423cee85 JH |
10713 | sv = res; |
10714 | goto report; | |
9b0e499b | 10715 | } |
423cee85 | 10716 | |
9b0e499b | 10717 | return res; |
b3ac6de7 | 10718 | } |
4e553d73 | 10719 | |
d0a148a6 NC |
10720 | /* Returns a NUL terminated string, with the length of the string written to |
10721 | *slp | |
10722 | */ | |
76e3520e | 10723 | STATIC char * |
cea2e8a9 | 10724 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 | 10725 | { |
97aff369 | 10726 | dVAR; |
463ee0b2 | 10727 | register char *d = dest; |
890ce7af | 10728 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
7918f24d NC |
10729 | |
10730 | PERL_ARGS_ASSERT_SCAN_WORD; | |
10731 | ||
463ee0b2 | 10732 | for (;;) { |
8903cb82 | 10733 | if (d >= e) |
cea2e8a9 | 10734 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10735 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10736 | *d++ = *s++; |
c35e046a | 10737 | else if (allow_package && (*s == '\'') && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10738 | *d++ = ':'; |
10739 | *d++ = ':'; | |
10740 | s++; | |
10741 | } | |
c35e046a | 10742 | else if (allow_package && (s[0] == ':') && (s[1] == ':') && (s[2] != '$')) { |
463ee0b2 LW |
10743 | *d++ = *s++; |
10744 | *d++ = *s++; | |
10745 | } | |
fd400ab9 | 10746 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10747 | char *t = s + UTF8SKIP(s); |
c35e046a | 10748 | size_t len; |
fd400ab9 | 10749 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 | 10750 | t += UTF8SKIP(t); |
c35e046a AL |
10751 | len = t - s; |
10752 | if (d + len > e) | |
cea2e8a9 | 10753 | Perl_croak(aTHX_ ident_too_long); |
c35e046a AL |
10754 | Copy(s, d, len, char); |
10755 | d += len; | |
a0ed51b3 LW |
10756 | s = t; |
10757 | } | |
463ee0b2 LW |
10758 | else { |
10759 | *d = '\0'; | |
10760 | *slp = d - dest; | |
10761 | return s; | |
e929a76b | 10762 | } |
378cc40b LW |
10763 | } |
10764 | } | |
10765 | ||
76e3520e | 10766 | STATIC char * |
f54cb97a | 10767 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b | 10768 | { |
97aff369 | 10769 | dVAR; |
6136c704 | 10770 | char *bracket = NULL; |
748a9306 | 10771 | char funny = *s++; |
6136c704 AL |
10772 | register char *d = dest; |
10773 | register char * const e = d + destlen + 3; /* two-character token, ending NUL */ | |
378cc40b | 10774 | |
7918f24d NC |
10775 | PERL_ARGS_ASSERT_SCAN_IDENT; |
10776 | ||
a0d0e21e | 10777 | if (isSPACE(*s)) |
29595ff2 | 10778 | s = PEEKSPACE(s); |
de3bb511 | 10779 | if (isDIGIT(*s)) { |
8903cb82 | 10780 | while (isDIGIT(*s)) { |
10781 | if (d >= e) | |
cea2e8a9 | 10782 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 10783 | *d++ = *s++; |
8903cb82 | 10784 | } |
378cc40b LW |
10785 | } |
10786 | else { | |
463ee0b2 | 10787 | for (;;) { |
8903cb82 | 10788 | if (d >= e) |
cea2e8a9 | 10789 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10790 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10791 | *d++ = *s++; |
7e2040f0 | 10792 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10793 | *d++ = ':'; |
10794 | *d++ = ':'; | |
10795 | s++; | |
10796 | } | |
a0d0e21e | 10797 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
10798 | *d++ = *s++; |
10799 | *d++ = *s++; | |
10800 | } | |
fd400ab9 | 10801 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10802 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 10803 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
10804 | t += UTF8SKIP(t); |
10805 | if (d + (t - s) > e) | |
cea2e8a9 | 10806 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
10807 | Copy(s, d, t - s, char); |
10808 | d += t - s; | |
10809 | s = t; | |
10810 | } | |
463ee0b2 LW |
10811 | else |
10812 | break; | |
10813 | } | |
378cc40b LW |
10814 | } |
10815 | *d = '\0'; | |
10816 | d = dest; | |
79072805 | 10817 | if (*d) { |
3280af22 NIS |
10818 | if (PL_lex_state != LEX_NORMAL) |
10819 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 10820 | return s; |
378cc40b | 10821 | } |
748a9306 | 10822 | if (*s == '$' && s[1] && |
3792a11b | 10823 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 10824 | { |
4810e5ec | 10825 | return s; |
5cd24f17 | 10826 | } |
79072805 LW |
10827 | if (*s == '{') { |
10828 | bracket = s; | |
10829 | s++; | |
10830 | } | |
10831 | else if (ck_uni) | |
10832 | check_uni(); | |
93a17b20 | 10833 | if (s < send) |
79072805 LW |
10834 | *d = *s++; |
10835 | d[1] = '\0'; | |
2b92dfce | 10836 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 10837 | *d = toCTRL(*s); |
10838 | s++; | |
de3bb511 | 10839 | } |
79072805 | 10840 | if (bracket) { |
748a9306 | 10841 | if (isSPACE(s[-1])) { |
fa83b5b6 | 10842 | while (s < send) { |
f54cb97a | 10843 | const char ch = *s++; |
bf4acbe4 | 10844 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 10845 | *d = ch; |
10846 | break; | |
10847 | } | |
10848 | } | |
748a9306 | 10849 | } |
7e2040f0 | 10850 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 10851 | d++; |
a0ed51b3 | 10852 | if (UTF) { |
6136c704 AL |
10853 | char *end = s; |
10854 | while ((end < send && isALNUM_lazy_if(end,UTF)) || *end == ':') { | |
10855 | end += UTF8SKIP(end); | |
10856 | while (end < send && UTF8_IS_CONTINUED(*end) && is_utf8_mark((U8*)end)) | |
10857 | end += UTF8SKIP(end); | |
a0ed51b3 | 10858 | } |
6136c704 AL |
10859 | Copy(s, d, end - s, char); |
10860 | d += end - s; | |
10861 | s = end; | |
a0ed51b3 LW |
10862 | } |
10863 | else { | |
2b92dfce | 10864 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 10865 | *d++ = *s++; |
2b92dfce | 10866 | if (d >= e) |
cea2e8a9 | 10867 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 10868 | } |
79072805 | 10869 | *d = '\0'; |
c35e046a AL |
10870 | while (s < send && SPACE_OR_TAB(*s)) |
10871 | s++; | |
ff68c719 | 10872 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
5458a98a | 10873 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest, 0)) { |
10edeb5d JH |
10874 | const char * const brack = |
10875 | (const char *) | |
10876 | ((*s == '[') ? "[...]" : "{...}"); | |
9014280d | 10877 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 10878 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
10879 | funny, dest, brack, funny, dest, brack); |
10880 | } | |
79072805 | 10881 | bracket++; |
a0be28da | 10882 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
10883 | return s; |
10884 | } | |
4e553d73 NIS |
10885 | } |
10886 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
10887 | * 1999-02-27 mjd-perl-patch@plover.com */ |
10888 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
10889 | && isALNUM(*s)) | |
10890 | { | |
10891 | d++; | |
10892 | while (isALNUM(*s) && d < e) { | |
10893 | *d++ = *s++; | |
10894 | } | |
10895 | if (d >= e) | |
cea2e8a9 | 10896 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 10897 | *d = '\0'; |
79072805 LW |
10898 | } |
10899 | if (*s == '}') { | |
10900 | s++; | |
7df0d042 | 10901 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 10902 | PL_lex_state = LEX_INTERPEND; |
7df0d042 AE |
10903 | PL_expect = XREF; |
10904 | } | |
d008e5eb | 10905 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 10906 | if (ckWARN(WARN_AMBIGUOUS) && |
780a5241 NC |
10907 | (keyword(dest, d - dest, 0) |
10908 | || get_cvn_flags(dest, d - dest, 0))) | |
d008e5eb | 10909 | { |
c35e046a AL |
10910 | if (funny == '#') |
10911 | funny = '@'; | |
9014280d | 10912 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
10913 | "Ambiguous use of %c{%s} resolved to %c%s", |
10914 | funny, dest, funny, dest); | |
10915 | } | |
10916 | } | |
79072805 LW |
10917 | } |
10918 | else { | |
10919 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 10920 | *dest = '\0'; |
79072805 LW |
10921 | } |
10922 | } | |
3280af22 NIS |
10923 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
10924 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
10925 | return s; |
10926 | } | |
10927 | ||
cea2e8a9 | 10928 | void |
2b36a5a0 | 10929 | Perl_pmflag(pTHX_ U32* pmfl, int ch) |
a0d0e21e | 10930 | { |
7918f24d NC |
10931 | PERL_ARGS_ASSERT_PMFLAG; |
10932 | ||
96a5add6 | 10933 | PERL_UNUSED_CONTEXT; |
cde0cee5 | 10934 | if (ch<256) { |
15f169a1 | 10935 | const char c = (char)ch; |
cde0cee5 YO |
10936 | switch (c) { |
10937 | CASE_STD_PMMOD_FLAGS_PARSE_SET(pmfl); | |
a20207d7 YO |
10938 | case GLOBAL_PAT_MOD: *pmfl |= PMf_GLOBAL; break; |
10939 | case CONTINUE_PAT_MOD: *pmfl |= PMf_CONTINUE; break; | |
10940 | case ONCE_PAT_MOD: *pmfl |= PMf_KEEP; break; | |
10941 | case KEEPCOPY_PAT_MOD: *pmfl |= PMf_KEEPCOPY; break; | |
cde0cee5 YO |
10942 | } |
10943 | } | |
a0d0e21e | 10944 | } |
378cc40b | 10945 | |
76e3520e | 10946 | STATIC char * |
cea2e8a9 | 10947 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 10948 | { |
97aff369 | 10949 | dVAR; |
79072805 | 10950 | PMOP *pm; |
5db06880 | 10951 | char *s = scan_str(start,!!PL_madskills,FALSE); |
10edeb5d | 10952 | const char * const valid_flags = |
a20207d7 | 10953 | (const char *)((type == OP_QR) ? QR_PAT_MODS : M_PAT_MODS); |
5db06880 NC |
10954 | #ifdef PERL_MAD |
10955 | char *modstart; | |
10956 | #endif | |
10957 | ||
7918f24d | 10958 | PERL_ARGS_ASSERT_SCAN_PAT; |
378cc40b | 10959 | |
25c09cbf | 10960 | if (!s) { |
6136c704 | 10961 | const char * const delimiter = skipspace(start); |
10edeb5d JH |
10962 | Perl_croak(aTHX_ |
10963 | (const char *) | |
10964 | (*delimiter == '?' | |
10965 | ? "Search pattern not terminated or ternary operator parsed as search pattern" | |
10966 | : "Search pattern not terminated" )); | |
25c09cbf | 10967 | } |
bbce6d69 | 10968 | |
8782bef2 | 10969 | pm = (PMOP*)newPMOP(type, 0); |
ad639bfb NC |
10970 | if (PL_multi_open == '?') { |
10971 | /* This is the only point in the code that sets PMf_ONCE: */ | |
79072805 | 10972 | pm->op_pmflags |= PMf_ONCE; |
ad639bfb NC |
10973 | |
10974 | /* Hence it's safe to do this bit of PMOP book-keeping here, which | |
10975 | allows us to restrict the list needed by reset to just the ?? | |
10976 | matches. */ | |
10977 | assert(type != OP_TRANS); | |
10978 | if (PL_curstash) { | |
10979 | MAGIC *mg = mg_find((SV*)PL_curstash, PERL_MAGIC_symtab); | |
10980 | U32 elements; | |
10981 | if (!mg) { | |
10982 | mg = sv_magicext((SV*)PL_curstash, 0, PERL_MAGIC_symtab, 0, 0, | |
10983 | 0); | |
10984 | } | |
10985 | elements = mg->mg_len / sizeof(PMOP**); | |
10986 | Renewc(mg->mg_ptr, elements + 1, PMOP*, char); | |
10987 | ((PMOP**)mg->mg_ptr) [elements++] = pm; | |
10988 | mg->mg_len = elements * sizeof(PMOP**); | |
10989 | PmopSTASH_set(pm,PL_curstash); | |
10990 | } | |
10991 | } | |
5db06880 NC |
10992 | #ifdef PERL_MAD |
10993 | modstart = s; | |
10994 | #endif | |
6136c704 AL |
10995 | while (*s && strchr(valid_flags, *s)) |
10996 | pmflag(&pm->op_pmflags,*s++); | |
5db06880 NC |
10997 | #ifdef PERL_MAD |
10998 | if (PL_madskills && modstart != s) { | |
10999 | SV* tmptoken = newSVpvn(modstart, s - modstart); | |
11000 | append_madprops(newMADPROP('m', MAD_SV, tmptoken, 0), (OP*)pm, 0); | |
11001 | } | |
11002 | #endif | |
4ac733c9 | 11003 | /* issue a warning if /c is specified,but /g is not */ |
041457d9 DM |
11004 | if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL) |
11005 | && ckWARN(WARN_REGEXP)) | |
4ac733c9 | 11006 | { |
a20207d7 YO |
11007 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), |
11008 | "Use of /c modifier is meaningless without /g" ); | |
4ac733c9 MJD |
11009 | } |
11010 | ||
3280af22 | 11011 | PL_lex_op = (OP*)pm; |
6154021b | 11012 | pl_yylval.ival = OP_MATCH; |
378cc40b LW |
11013 | return s; |
11014 | } | |
11015 | ||
76e3520e | 11016 | STATIC char * |
cea2e8a9 | 11017 | S_scan_subst(pTHX_ char *start) |
79072805 | 11018 | { |
27da23d5 | 11019 | dVAR; |
a0d0e21e | 11020 | register char *s; |
79072805 | 11021 | register PMOP *pm; |
4fdae800 | 11022 | I32 first_start; |
79072805 | 11023 | I32 es = 0; |
5db06880 NC |
11024 | #ifdef PERL_MAD |
11025 | char *modstart; | |
11026 | #endif | |
79072805 | 11027 | |
7918f24d NC |
11028 | PERL_ARGS_ASSERT_SCAN_SUBST; |
11029 | ||
6154021b | 11030 | pl_yylval.ival = OP_NULL; |
79072805 | 11031 | |
5db06880 | 11032 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 11033 | |
37fd879b | 11034 | if (!s) |
cea2e8a9 | 11035 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 11036 | |
3280af22 | 11037 | if (s[-1] == PL_multi_open) |
79072805 | 11038 | s--; |
5db06880 NC |
11039 | #ifdef PERL_MAD |
11040 | if (PL_madskills) { | |
cd81e915 NC |
11041 | CURMAD('q', PL_thisopen); |
11042 | CURMAD('_', PL_thiswhite); | |
11043 | CURMAD('E', PL_thisstuff); | |
11044 | CURMAD('Q', PL_thisclose); | |
11045 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
11046 | } |
11047 | #endif | |
79072805 | 11048 | |
3280af22 | 11049 | first_start = PL_multi_start; |
5db06880 | 11050 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 11051 | if (!s) { |
37fd879b | 11052 | if (PL_lex_stuff) { |
3280af22 | 11053 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 11054 | PL_lex_stuff = NULL; |
37fd879b | 11055 | } |
cea2e8a9 | 11056 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 11057 | } |
3280af22 | 11058 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 11059 | |
79072805 | 11060 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
5db06880 NC |
11061 | |
11062 | #ifdef PERL_MAD | |
11063 | if (PL_madskills) { | |
cd81e915 NC |
11064 | CURMAD('z', PL_thisopen); |
11065 | CURMAD('R', PL_thisstuff); | |
11066 | CURMAD('Z', PL_thisclose); | |
5db06880 NC |
11067 | } |
11068 | modstart = s; | |
11069 | #endif | |
11070 | ||
48c036b1 | 11071 | while (*s) { |
a20207d7 | 11072 | if (*s == EXEC_PAT_MOD) { |
a687059c | 11073 | s++; |
2f3197b3 | 11074 | es++; |
a687059c | 11075 | } |
a20207d7 | 11076 | else if (strchr(S_PAT_MODS, *s)) |
a0d0e21e | 11077 | pmflag(&pm->op_pmflags,*s++); |
48c036b1 GS |
11078 | else |
11079 | break; | |
378cc40b | 11080 | } |
79072805 | 11081 | |
5db06880 NC |
11082 | #ifdef PERL_MAD |
11083 | if (PL_madskills) { | |
11084 | if (modstart != s) | |
11085 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
11086 | append_madprops(PL_thismad, (OP*)pm, 0); |
11087 | PL_thismad = 0; | |
5db06880 NC |
11088 | } |
11089 | #endif | |
0bd48802 AL |
11090 | if ((pm->op_pmflags & PMf_CONTINUE) && ckWARN(WARN_REGEXP)) { |
11091 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" ); | |
4ac733c9 MJD |
11092 | } |
11093 | ||
79072805 | 11094 | if (es) { |
6136c704 AL |
11095 | SV * const repl = newSVpvs(""); |
11096 | ||
0244c3a4 GS |
11097 | PL_sublex_info.super_bufptr = s; |
11098 | PL_sublex_info.super_bufend = PL_bufend; | |
11099 | PL_multi_end = 0; | |
79072805 | 11100 | pm->op_pmflags |= PMf_EVAL; |
a5849ce5 NC |
11101 | while (es-- > 0) { |
11102 | if (es) | |
11103 | sv_catpvs(repl, "eval "); | |
11104 | else | |
11105 | sv_catpvs(repl, "do "); | |
11106 | } | |
6f43d98f | 11107 | sv_catpvs(repl, "{"); |
3280af22 | 11108 | sv_catsv(repl, PL_lex_repl); |
9badc361 RGS |
11109 | if (strchr(SvPVX(PL_lex_repl), '#')) |
11110 | sv_catpvs(repl, "\n"); | |
11111 | sv_catpvs(repl, "}"); | |
25da4f38 | 11112 | SvEVALED_on(repl); |
3280af22 NIS |
11113 | SvREFCNT_dec(PL_lex_repl); |
11114 | PL_lex_repl = repl; | |
378cc40b | 11115 | } |
79072805 | 11116 | |
3280af22 | 11117 | PL_lex_op = (OP*)pm; |
6154021b | 11118 | pl_yylval.ival = OP_SUBST; |
378cc40b LW |
11119 | return s; |
11120 | } | |
11121 | ||
76e3520e | 11122 | STATIC char * |
cea2e8a9 | 11123 | S_scan_trans(pTHX_ char *start) |
378cc40b | 11124 | { |
97aff369 | 11125 | dVAR; |
a0d0e21e | 11126 | register char* s; |
11343788 | 11127 | OP *o; |
79072805 | 11128 | short *tbl; |
b84c11c8 NC |
11129 | U8 squash; |
11130 | U8 del; | |
11131 | U8 complement; | |
5db06880 NC |
11132 | #ifdef PERL_MAD |
11133 | char *modstart; | |
11134 | #endif | |
79072805 | 11135 | |
7918f24d NC |
11136 | PERL_ARGS_ASSERT_SCAN_TRANS; |
11137 | ||
6154021b | 11138 | pl_yylval.ival = OP_NULL; |
79072805 | 11139 | |
5db06880 | 11140 | s = scan_str(start,!!PL_madskills,FALSE); |
37fd879b | 11141 | if (!s) |
cea2e8a9 | 11142 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
5db06880 | 11143 | |
3280af22 | 11144 | if (s[-1] == PL_multi_open) |
2f3197b3 | 11145 | s--; |
5db06880 NC |
11146 | #ifdef PERL_MAD |
11147 | if (PL_madskills) { | |
cd81e915 NC |
11148 | CURMAD('q', PL_thisopen); |
11149 | CURMAD('_', PL_thiswhite); | |
11150 | CURMAD('E', PL_thisstuff); | |
11151 | CURMAD('Q', PL_thisclose); | |
11152 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
11153 | } |
11154 | #endif | |
2f3197b3 | 11155 | |
5db06880 | 11156 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 11157 | if (!s) { |
37fd879b | 11158 | if (PL_lex_stuff) { |
3280af22 | 11159 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 11160 | PL_lex_stuff = NULL; |
37fd879b | 11161 | } |
cea2e8a9 | 11162 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 11163 | } |
5db06880 | 11164 | if (PL_madskills) { |
cd81e915 NC |
11165 | CURMAD('z', PL_thisopen); |
11166 | CURMAD('R', PL_thisstuff); | |
11167 | CURMAD('Z', PL_thisclose); | |
5db06880 | 11168 | } |
79072805 | 11169 | |
a0ed51b3 | 11170 | complement = del = squash = 0; |
5db06880 NC |
11171 | #ifdef PERL_MAD |
11172 | modstart = s; | |
11173 | #endif | |
7a1e2023 NC |
11174 | while (1) { |
11175 | switch (*s) { | |
11176 | case 'c': | |
79072805 | 11177 | complement = OPpTRANS_COMPLEMENT; |
7a1e2023 NC |
11178 | break; |
11179 | case 'd': | |
a0ed51b3 | 11180 | del = OPpTRANS_DELETE; |
7a1e2023 NC |
11181 | break; |
11182 | case 's': | |
79072805 | 11183 | squash = OPpTRANS_SQUASH; |
7a1e2023 NC |
11184 | break; |
11185 | default: | |
11186 | goto no_more; | |
11187 | } | |
395c3793 LW |
11188 | s++; |
11189 | } | |
7a1e2023 | 11190 | no_more: |
8973db79 | 11191 | |
aa1f7c5b | 11192 | tbl = (short *)PerlMemShared_calloc(complement&&!del?258:256, sizeof(short)); |
8973db79 | 11193 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
59f00321 RGS |
11194 | o->op_private &= ~OPpTRANS_ALL; |
11195 | o->op_private |= del|squash|complement| | |
7948272d NIS |
11196 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| |
11197 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 11198 | |
3280af22 | 11199 | PL_lex_op = o; |
6154021b | 11200 | pl_yylval.ival = OP_TRANS; |
5db06880 NC |
11201 | |
11202 | #ifdef PERL_MAD | |
11203 | if (PL_madskills) { | |
11204 | if (modstart != s) | |
11205 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
11206 | append_madprops(PL_thismad, o, 0); |
11207 | PL_thismad = 0; | |
5db06880 NC |
11208 | } |
11209 | #endif | |
11210 | ||
79072805 LW |
11211 | return s; |
11212 | } | |
11213 | ||
76e3520e | 11214 | STATIC char * |
cea2e8a9 | 11215 | S_scan_heredoc(pTHX_ register char *s) |
79072805 | 11216 | { |
97aff369 | 11217 | dVAR; |
79072805 LW |
11218 | SV *herewas; |
11219 | I32 op_type = OP_SCALAR; | |
11220 | I32 len; | |
11221 | SV *tmpstr; | |
11222 | char term; | |
73d840c0 | 11223 | const char *found_newline; |
79072805 | 11224 | register char *d; |
fc36a67e | 11225 | register char *e; |
4633a7c4 | 11226 | char *peek; |
f54cb97a | 11227 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
5db06880 NC |
11228 | #ifdef PERL_MAD |
11229 | I32 stuffstart = s - SvPVX(PL_linestr); | |
11230 | char *tstart; | |
11231 | ||
cd81e915 | 11232 | PL_realtokenstart = -1; |
5db06880 | 11233 | #endif |
79072805 | 11234 | |
7918f24d NC |
11235 | PERL_ARGS_ASSERT_SCAN_HEREDOC; |
11236 | ||
79072805 | 11237 | s += 2; |
3280af22 NIS |
11238 | d = PL_tokenbuf; |
11239 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 11240 | if (!outer) |
79072805 | 11241 | *d++ = '\n'; |
c35e046a AL |
11242 | peek = s; |
11243 | while (SPACE_OR_TAB(*peek)) | |
11244 | peek++; | |
3792a11b | 11245 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 11246 | s = peek; |
79072805 | 11247 | term = *s++; |
3280af22 | 11248 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 11249 | d += len; |
3280af22 | 11250 | if (s < PL_bufend) |
79072805 | 11251 | s++; |
79072805 LW |
11252 | } |
11253 | else { | |
11254 | if (*s == '\\') | |
11255 | s++, term = '\''; | |
11256 | else | |
11257 | term = '"'; | |
7e2040f0 | 11258 | if (!isALNUM_lazy_if(s,UTF)) |
12bcd1a6 | 11259 | deprecate_old("bare << to mean <<\"\""); |
7e2040f0 | 11260 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 11261 | if (d < e) |
11262 | *d++ = *s; | |
11263 | } | |
11264 | } | |
3280af22 | 11265 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 11266 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
11267 | *d++ = '\n'; |
11268 | *d = '\0'; | |
3280af22 | 11269 | len = d - PL_tokenbuf; |
5db06880 NC |
11270 | |
11271 | #ifdef PERL_MAD | |
11272 | if (PL_madskills) { | |
11273 | tstart = PL_tokenbuf + !outer; | |
cd81e915 | 11274 | PL_thisclose = newSVpvn(tstart, len - !outer); |
5db06880 | 11275 | tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 | 11276 | PL_thisopen = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11277 | stuffstart = s - SvPVX(PL_linestr); |
11278 | } | |
11279 | #endif | |
6a27c188 | 11280 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
11281 | d = strchr(s, '\r'); |
11282 | if (d) { | |
b464bac0 | 11283 | char * const olds = s; |
f63a84b2 | 11284 | s = d; |
3280af22 | 11285 | while (s < PL_bufend) { |
f63a84b2 LW |
11286 | if (*s == '\r') { |
11287 | *d++ = '\n'; | |
11288 | if (*++s == '\n') | |
11289 | s++; | |
11290 | } | |
11291 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
11292 | *d++ = *s++; | |
11293 | s++; | |
11294 | } | |
11295 | else | |
11296 | *d++ = *s++; | |
11297 | } | |
11298 | *d = '\0'; | |
3280af22 | 11299 | PL_bufend = d; |
95a20fc0 | 11300 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
11301 | s = olds; |
11302 | } | |
11303 | #endif | |
5db06880 NC |
11304 | #ifdef PERL_MAD |
11305 | found_newline = 0; | |
11306 | #endif | |
10edeb5d | 11307 | if ( outer || !(found_newline = (char*)memchr((void*)s, '\n', PL_bufend - s)) ) { |
73d840c0 AL |
11308 | herewas = newSVpvn(s,PL_bufend-s); |
11309 | } | |
11310 | else { | |
5db06880 NC |
11311 | #ifdef PERL_MAD |
11312 | herewas = newSVpvn(s-1,found_newline-s+1); | |
11313 | #else | |
73d840c0 AL |
11314 | s--; |
11315 | herewas = newSVpvn(s,found_newline-s); | |
5db06880 | 11316 | #endif |
73d840c0 | 11317 | } |
5db06880 NC |
11318 | #ifdef PERL_MAD |
11319 | if (PL_madskills) { | |
11320 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11321 | if (PL_thisstuff) |
11322 | sv_catpvn(PL_thisstuff, tstart, s - tstart); | |
5db06880 | 11323 | else |
cd81e915 | 11324 | PL_thisstuff = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11325 | } |
11326 | #endif | |
79072805 | 11327 | s += SvCUR(herewas); |
748a9306 | 11328 | |
5db06880 NC |
11329 | #ifdef PERL_MAD |
11330 | stuffstart = s - SvPVX(PL_linestr); | |
11331 | ||
11332 | if (found_newline) | |
11333 | s--; | |
11334 | #endif | |
11335 | ||
7d0a29fe NC |
11336 | tmpstr = newSV_type(SVt_PVIV); |
11337 | SvGROW(tmpstr, 80); | |
748a9306 | 11338 | if (term == '\'') { |
79072805 | 11339 | op_type = OP_CONST; |
45977657 | 11340 | SvIV_set(tmpstr, -1); |
748a9306 LW |
11341 | } |
11342 | else if (term == '`') { | |
79072805 | 11343 | op_type = OP_BACKTICK; |
45977657 | 11344 | SvIV_set(tmpstr, '\\'); |
748a9306 | 11345 | } |
79072805 LW |
11346 | |
11347 | CLINE; | |
57843af0 | 11348 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
11349 | PL_multi_open = PL_multi_close = '<'; |
11350 | term = *PL_tokenbuf; | |
0244c3a4 | 11351 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
6136c704 AL |
11352 | char * const bufptr = PL_sublex_info.super_bufptr; |
11353 | char * const bufend = PL_sublex_info.super_bufend; | |
b464bac0 | 11354 | char * const olds = s - SvCUR(herewas); |
0244c3a4 GS |
11355 | s = strchr(bufptr, '\n'); |
11356 | if (!s) | |
11357 | s = bufend; | |
11358 | d = s; | |
11359 | while (s < bufend && | |
11360 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
11361 | if (*s++ == '\n') | |
57843af0 | 11362 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
11363 | } |
11364 | if (s >= bufend) { | |
eb160463 | 11365 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
11366 | missingterm(PL_tokenbuf); |
11367 | } | |
11368 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
11369 | sv_setpvn(tmpstr,d+1,s-d); | |
11370 | s += len - 1; | |
11371 | sv_catpvn(herewas,s,bufend-s); | |
95a20fc0 | 11372 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
11373 | |
11374 | s = olds; | |
11375 | goto retval; | |
11376 | } | |
11377 | else if (!outer) { | |
79072805 | 11378 | d = s; |
3280af22 NIS |
11379 | while (s < PL_bufend && |
11380 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 11381 | if (*s++ == '\n') |
57843af0 | 11382 | CopLINE_inc(PL_curcop); |
79072805 | 11383 | } |
3280af22 | 11384 | if (s >= PL_bufend) { |
eb160463 | 11385 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11386 | missingterm(PL_tokenbuf); |
79072805 LW |
11387 | } |
11388 | sv_setpvn(tmpstr,d+1,s-d); | |
5db06880 NC |
11389 | #ifdef PERL_MAD |
11390 | if (PL_madskills) { | |
cd81e915 NC |
11391 | if (PL_thisstuff) |
11392 | sv_catpvn(PL_thisstuff, d + 1, s - d); | |
5db06880 | 11393 | else |
cd81e915 | 11394 | PL_thisstuff = newSVpvn(d + 1, s - d); |
5db06880 NC |
11395 | stuffstart = s - SvPVX(PL_linestr); |
11396 | } | |
11397 | #endif | |
79072805 | 11398 | s += len - 1; |
57843af0 | 11399 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 11400 | |
3280af22 NIS |
11401 | sv_catpvn(herewas,s,PL_bufend-s); |
11402 | sv_setsv(PL_linestr,herewas); | |
11403 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
11404 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11405 | PL_last_lop = PL_last_uni = NULL; |
79072805 LW |
11406 | } |
11407 | else | |
11408 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
3280af22 | 11409 | while (s >= PL_bufend) { /* multiple line string? */ |
5db06880 NC |
11410 | #ifdef PERL_MAD |
11411 | if (PL_madskills) { | |
11412 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11413 | if (PL_thisstuff) |
11414 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11415 | else |
cd81e915 | 11416 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11417 | } |
11418 | #endif | |
fd2d0953 | 11419 | if (!outer || |
3280af22 | 11420 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { |
eb160463 | 11421 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11422 | missingterm(PL_tokenbuf); |
79072805 | 11423 | } |
5db06880 NC |
11424 | #ifdef PERL_MAD |
11425 | stuffstart = s - SvPVX(PL_linestr); | |
11426 | #endif | |
57843af0 | 11427 | CopLINE_inc(PL_curcop); |
3280af22 | 11428 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 11429 | PL_last_lop = PL_last_uni = NULL; |
6a27c188 | 11430 | #ifndef PERL_STRICT_CR |
3280af22 | 11431 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
11432 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
11433 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 11434 | { |
3280af22 NIS |
11435 | PL_bufend[-2] = '\n'; |
11436 | PL_bufend--; | |
95a20fc0 | 11437 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 11438 | } |
3280af22 NIS |
11439 | else if (PL_bufend[-1] == '\r') |
11440 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11441 | } |
3280af22 NIS |
11442 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
11443 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11444 | #endif |
80a702cd | 11445 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 11446 | update_debugger_info(PL_linestr, NULL, 0); |
3280af22 | 11447 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
95a20fc0 | 11448 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
1de9afcd | 11449 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
11450 | sv_catsv(PL_linestr,herewas); |
11451 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
1de9afcd | 11452 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
11453 | } |
11454 | else { | |
3280af22 NIS |
11455 | s = PL_bufend; |
11456 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
11457 | } |
11458 | } | |
79072805 | 11459 | s++; |
0244c3a4 | 11460 | retval: |
57843af0 | 11461 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 11462 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
1da4ca5f | 11463 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 11464 | } |
8990e307 | 11465 | SvREFCNT_dec(herewas); |
2f31ce75 | 11466 | if (!IN_BYTES) { |
95a20fc0 | 11467 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
2f31ce75 JH |
11468 | SvUTF8_on(tmpstr); |
11469 | else if (PL_encoding) | |
11470 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
11471 | } | |
3280af22 | 11472 | PL_lex_stuff = tmpstr; |
6154021b | 11473 | pl_yylval.ival = op_type; |
79072805 LW |
11474 | return s; |
11475 | } | |
11476 | ||
02aa26ce NT |
11477 | /* scan_inputsymbol |
11478 | takes: current position in input buffer | |
11479 | returns: new position in input buffer | |
6154021b | 11480 | side-effects: pl_yylval and lex_op are set. |
02aa26ce NT |
11481 | |
11482 | This code handles: | |
11483 | ||
11484 | <> read from ARGV | |
11485 | <FH> read from filehandle | |
11486 | <pkg::FH> read from package qualified filehandle | |
11487 | <pkg'FH> read from package qualified filehandle | |
11488 | <$fh> read from filehandle in $fh | |
11489 | <*.h> filename glob | |
11490 | ||
11491 | */ | |
11492 | ||
76e3520e | 11493 | STATIC char * |
cea2e8a9 | 11494 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 11495 | { |
97aff369 | 11496 | dVAR; |
02aa26ce | 11497 | register char *s = start; /* current position in buffer */ |
1b420867 | 11498 | char *end; |
79072805 | 11499 | I32 len; |
6136c704 AL |
11500 | char *d = PL_tokenbuf; /* start of temp holding space */ |
11501 | const char * const e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
11502 | ||
7918f24d NC |
11503 | PERL_ARGS_ASSERT_SCAN_INPUTSYMBOL; |
11504 | ||
1b420867 GS |
11505 | end = strchr(s, '\n'); |
11506 | if (!end) | |
11507 | end = PL_bufend; | |
11508 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
11509 | |
11510 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 11511 | or if it didn't end, or if we see a newline |
02aa26ce NT |
11512 | */ |
11513 | ||
bb7a0f54 | 11514 | if (len >= (I32)sizeof PL_tokenbuf) |
cea2e8a9 | 11515 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 11516 | if (s >= end) |
cea2e8a9 | 11517 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 11518 | |
fc36a67e | 11519 | s++; |
02aa26ce NT |
11520 | |
11521 | /* check for <$fh> | |
11522 | Remember, only scalar variables are interpreted as filehandles by | |
11523 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
11524 | treated as a glob() call. | |
11525 | This code makes use of the fact that except for the $ at the front, | |
11526 | a scalar variable and a filehandle look the same. | |
11527 | */ | |
4633a7c4 | 11528 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
11529 | |
11530 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 11531 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 11532 | d++; |
02aa26ce NT |
11533 | |
11534 | /* If we've tried to read what we allow filehandles to look like, and | |
11535 | there's still text left, then it must be a glob() and not a getline. | |
11536 | Use scan_str to pull out the stuff between the <> and treat it | |
11537 | as nothing more than a string. | |
11538 | */ | |
11539 | ||
3280af22 | 11540 | if (d - PL_tokenbuf != len) { |
6154021b | 11541 | pl_yylval.ival = OP_GLOB; |
5db06880 | 11542 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 11543 | if (!s) |
cea2e8a9 | 11544 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
11545 | return s; |
11546 | } | |
395c3793 | 11547 | else { |
9b3023bc | 11548 | bool readline_overriden = FALSE; |
6136c704 | 11549 | GV *gv_readline; |
9b3023bc | 11550 | GV **gvp; |
02aa26ce | 11551 | /* we're in a filehandle read situation */ |
3280af22 | 11552 | d = PL_tokenbuf; |
02aa26ce NT |
11553 | |
11554 | /* turn <> into <ARGV> */ | |
79072805 | 11555 | if (!len) |
689badd5 | 11556 | Copy("ARGV",d,5,char); |
02aa26ce | 11557 | |
9b3023bc | 11558 | /* Check whether readline() is overriden */ |
fafc274c | 11559 | gv_readline = gv_fetchpvs("readline", GV_NOTQUAL, SVt_PVCV); |
6136c704 | 11560 | if ((gv_readline |
ba979b31 | 11561 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) |
9b3023bc | 11562 | || |
017a3ce5 | 11563 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE)) |
9e0d86f8 | 11564 | && (gv_readline = *gvp) && isGV_with_GP(gv_readline) |
ba979b31 | 11565 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
11566 | readline_overriden = TRUE; |
11567 | ||
02aa26ce NT |
11568 | /* if <$fh>, create the ops to turn the variable into a |
11569 | filehandle | |
11570 | */ | |
79072805 | 11571 | if (*d == '$') { |
02aa26ce NT |
11572 | /* try to find it in the pad for this block, otherwise find |
11573 | add symbol table ops | |
11574 | */ | |
bbd11bfc AL |
11575 | const PADOFFSET tmp = pad_findmy(d); |
11576 | if (tmp != NOT_IN_PAD) { | |
00b1698f | 11577 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
6136c704 AL |
11578 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
11579 | HEK * const stashname = HvNAME_HEK(stash); | |
11580 | SV * const sym = sv_2mortal(newSVhek(stashname)); | |
396482e1 | 11581 | sv_catpvs(sym, "::"); |
f558d5af JH |
11582 | sv_catpv(sym, d+1); |
11583 | d = SvPVX(sym); | |
11584 | goto intro_sym; | |
11585 | } | |
11586 | else { | |
6136c704 | 11587 | OP * const o = newOP(OP_PADSV, 0); |
f558d5af | 11588 | o->op_targ = tmp; |
9b3023bc RGS |
11589 | PL_lex_op = readline_overriden |
11590 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11591 | append_elem(OP_LIST, o, | |
11592 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
11593 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 11594 | } |
a0d0e21e LW |
11595 | } |
11596 | else { | |
f558d5af JH |
11597 | GV *gv; |
11598 | ++d; | |
11599 | intro_sym: | |
11600 | gv = gv_fetchpv(d, | |
11601 | (PL_in_eval | |
11602 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 11603 | : GV_ADDMULTI), |
f558d5af | 11604 | SVt_PV); |
9b3023bc RGS |
11605 | PL_lex_op = readline_overriden |
11606 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11607 | append_elem(OP_LIST, | |
11608 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
11609 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11610 | : (OP*)newUNOP(OP_READLINE, 0, | |
11611 | newUNOP(OP_RV2SV, 0, | |
11612 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 11613 | } |
7c6fadd6 RGS |
11614 | if (!readline_overriden) |
11615 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
6154021b RGS |
11616 | /* we created the ops in PL_lex_op, so make pl_yylval.ival a null op */ |
11617 | pl_yylval.ival = OP_NULL; | |
79072805 | 11618 | } |
02aa26ce NT |
11619 | |
11620 | /* If it's none of the above, it must be a literal filehandle | |
11621 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 11622 | else { |
6136c704 | 11623 | GV * const gv = gv_fetchpv(d, GV_ADD, SVt_PVIO); |
9b3023bc RGS |
11624 | PL_lex_op = readline_overriden |
11625 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11626 | append_elem(OP_LIST, | |
11627 | newGVOP(OP_GV, 0, gv), | |
11628 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11629 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
6154021b | 11630 | pl_yylval.ival = OP_NULL; |
79072805 LW |
11631 | } |
11632 | } | |
02aa26ce | 11633 | |
79072805 LW |
11634 | return s; |
11635 | } | |
11636 | ||
02aa26ce NT |
11637 | |
11638 | /* scan_str | |
11639 | takes: start position in buffer | |
09bef843 SB |
11640 | keep_quoted preserve \ on the embedded delimiter(s) |
11641 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
11642 | returns: position to continue reading from buffer |
11643 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
11644 | updates the read buffer. | |
11645 | ||
11646 | This subroutine pulls a string out of the input. It is called for: | |
11647 | q single quotes q(literal text) | |
11648 | ' single quotes 'literal text' | |
11649 | qq double quotes qq(interpolate $here please) | |
11650 | " double quotes "interpolate $here please" | |
11651 | qx backticks qx(/bin/ls -l) | |
11652 | ` backticks `/bin/ls -l` | |
11653 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
11654 | m// regexp match m/this/ | |
11655 | s/// regexp substitute s/this/that/ | |
11656 | tr/// string transliterate tr/this/that/ | |
11657 | y/// string transliterate y/this/that/ | |
11658 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 11659 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
11660 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
11661 | ||
11662 | In most of these cases (all but <>, patterns and transliterate) | |
11663 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
11664 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
11665 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
11666 | calls scan_str(). | |
4e553d73 | 11667 | |
02aa26ce NT |
11668 | It skips whitespace before the string starts, and treats the first |
11669 | character as the delimiter. If the delimiter is one of ([{< then | |
11670 | the corresponding "close" character )]}> is used as the closing | |
11671 | delimiter. It allows quoting of delimiters, and if the string has | |
11672 | balanced delimiters ([{<>}]) it allows nesting. | |
11673 | ||
37fd879b HS |
11674 | On success, the SV with the resulting string is put into lex_stuff or, |
11675 | if that is already non-NULL, into lex_repl. The second case occurs only | |
11676 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
11677 | For convenience, the terminating delimiter character is stuffed into | |
11678 | SvIVX of the SV. | |
02aa26ce NT |
11679 | */ |
11680 | ||
76e3520e | 11681 | STATIC char * |
09bef843 | 11682 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 11683 | { |
97aff369 | 11684 | dVAR; |
02aa26ce | 11685 | SV *sv; /* scalar value: string */ |
d3fcec1f | 11686 | const char *tmps; /* temp string, used for delimiter matching */ |
02aa26ce NT |
11687 | register char *s = start; /* current position in the buffer */ |
11688 | register char term; /* terminating character */ | |
11689 | register char *to; /* current position in the sv's data */ | |
11690 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 11691 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
220e2d4e | 11692 | I32 termcode; /* terminating char. code */ |
89ebb4a3 | 11693 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
220e2d4e | 11694 | STRLEN termlen; /* length of terminating string */ |
0331ef07 | 11695 | int last_off = 0; /* last position for nesting bracket */ |
5db06880 NC |
11696 | #ifdef PERL_MAD |
11697 | int stuffstart; | |
11698 | char *tstart; | |
11699 | #endif | |
02aa26ce | 11700 | |
7918f24d NC |
11701 | PERL_ARGS_ASSERT_SCAN_STR; |
11702 | ||
02aa26ce | 11703 | /* skip space before the delimiter */ |
29595ff2 NC |
11704 | if (isSPACE(*s)) { |
11705 | s = PEEKSPACE(s); | |
11706 | } | |
02aa26ce | 11707 | |
5db06880 | 11708 | #ifdef PERL_MAD |
cd81e915 NC |
11709 | if (PL_realtokenstart >= 0) { |
11710 | stuffstart = PL_realtokenstart; | |
11711 | PL_realtokenstart = -1; | |
5db06880 NC |
11712 | } |
11713 | else | |
11714 | stuffstart = start - SvPVX(PL_linestr); | |
11715 | #endif | |
02aa26ce | 11716 | /* mark where we are, in case we need to report errors */ |
79072805 | 11717 | CLINE; |
02aa26ce NT |
11718 | |
11719 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 11720 | term = *s; |
220e2d4e IH |
11721 | if (!UTF) { |
11722 | termcode = termstr[0] = term; | |
11723 | termlen = 1; | |
11724 | } | |
11725 | else { | |
f3b9ce0f | 11726 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
220e2d4e IH |
11727 | Copy(s, termstr, termlen, U8); |
11728 | if (!UTF8_IS_INVARIANT(term)) | |
11729 | has_utf8 = TRUE; | |
11730 | } | |
b1c7b182 | 11731 | |
02aa26ce | 11732 | /* mark where we are */ |
57843af0 | 11733 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 11734 | PL_multi_open = term; |
02aa26ce NT |
11735 | |
11736 | /* find corresponding closing delimiter */ | |
93a17b20 | 11737 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
220e2d4e IH |
11738 | termcode = termstr[0] = term = tmps[5]; |
11739 | ||
3280af22 | 11740 | PL_multi_close = term; |
79072805 | 11741 | |
561b68a9 SH |
11742 | /* create a new SV to hold the contents. 79 is the SV's initial length. |
11743 | What a random number. */ | |
7d0a29fe NC |
11744 | sv = newSV_type(SVt_PVIV); |
11745 | SvGROW(sv, 80); | |
45977657 | 11746 | SvIV_set(sv, termcode); |
a0d0e21e | 11747 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
11748 | |
11749 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 11750 | if (keep_delims) |
220e2d4e IH |
11751 | sv_catpvn(sv, s, termlen); |
11752 | s += termlen; | |
5db06880 NC |
11753 | #ifdef PERL_MAD |
11754 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11755 | if (!PL_thisopen && !keep_delims) { |
11756 | PL_thisopen = newSVpvn(tstart, s - tstart); | |
5db06880 NC |
11757 | stuffstart = s - SvPVX(PL_linestr); |
11758 | } | |
11759 | #endif | |
93a17b20 | 11760 | for (;;) { |
220e2d4e IH |
11761 | if (PL_encoding && !UTF) { |
11762 | bool cont = TRUE; | |
11763 | ||
11764 | while (cont) { | |
95a20fc0 | 11765 | int offset = s - SvPVX_const(PL_linestr); |
66a1b24b | 11766 | const bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f3b9ce0f | 11767 | &offset, (char*)termstr, termlen); |
6136c704 AL |
11768 | const char * const ns = SvPVX_const(PL_linestr) + offset; |
11769 | char * const svlast = SvEND(sv) - 1; | |
220e2d4e IH |
11770 | |
11771 | for (; s < ns; s++) { | |
11772 | if (*s == '\n' && !PL_rsfp) | |
11773 | CopLINE_inc(PL_curcop); | |
11774 | } | |
11775 | if (!found) | |
11776 | goto read_more_line; | |
11777 | else { | |
11778 | /* handle quoted delimiters */ | |
52327caf | 11779 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
f54cb97a | 11780 | const char *t; |
95a20fc0 | 11781 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
220e2d4e IH |
11782 | t--; |
11783 | if ((svlast-1 - t) % 2) { | |
11784 | if (!keep_quoted) { | |
11785 | *(svlast-1) = term; | |
11786 | *svlast = '\0'; | |
11787 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11788 | } | |
11789 | continue; | |
11790 | } | |
11791 | } | |
11792 | if (PL_multi_open == PL_multi_close) { | |
11793 | cont = FALSE; | |
11794 | } | |
11795 | else { | |
f54cb97a AL |
11796 | const char *t; |
11797 | char *w; | |
0331ef07 | 11798 | for (t = w = SvPVX(sv)+last_off; t < svlast; w++, t++) { |
220e2d4e IH |
11799 | /* At here, all closes are "was quoted" one, |
11800 | so we don't check PL_multi_close. */ | |
11801 | if (*t == '\\') { | |
11802 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
11803 | t++; | |
11804 | else | |
11805 | *w++ = *t++; | |
11806 | } | |
11807 | else if (*t == PL_multi_open) | |
11808 | brackets++; | |
11809 | ||
11810 | *w = *t; | |
11811 | } | |
11812 | if (w < t) { | |
11813 | *w++ = term; | |
11814 | *w = '\0'; | |
95a20fc0 | 11815 | SvCUR_set(sv, w - SvPVX_const(sv)); |
220e2d4e | 11816 | } |
0331ef07 | 11817 | last_off = w - SvPVX(sv); |
220e2d4e IH |
11818 | if (--brackets <= 0) |
11819 | cont = FALSE; | |
11820 | } | |
11821 | } | |
11822 | } | |
11823 | if (!keep_delims) { | |
11824 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11825 | *SvEND(sv) = '\0'; | |
11826 | } | |
11827 | break; | |
11828 | } | |
11829 | ||
02aa26ce | 11830 | /* extend sv if need be */ |
3280af22 | 11831 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 11832 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 11833 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 11834 | |
02aa26ce | 11835 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
11836 | if (PL_multi_open == PL_multi_close) { |
11837 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 11838 | /* embedded newlines increment the current line number */ |
3280af22 | 11839 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11840 | CopLINE_inc(PL_curcop); |
02aa26ce | 11841 | /* handle quoted delimiters */ |
3280af22 | 11842 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 11843 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 11844 | s++; |
02aa26ce | 11845 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
11846 | else |
11847 | *to++ = *s++; | |
11848 | } | |
02aa26ce NT |
11849 | /* terminate when run out of buffer (the for() condition), or |
11850 | have found the terminator */ | |
220e2d4e IH |
11851 | else if (*s == term) { |
11852 | if (termlen == 1) | |
11853 | break; | |
f3b9ce0f | 11854 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
220e2d4e IH |
11855 | break; |
11856 | } | |
63cd0674 | 11857 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11858 | has_utf8 = TRUE; |
93a17b20 LW |
11859 | *to = *s; |
11860 | } | |
11861 | } | |
02aa26ce NT |
11862 | |
11863 | /* if the terminator isn't the same as the start character (e.g., | |
11864 | matched brackets), we have to allow more in the quoting, and | |
11865 | be prepared for nested brackets. | |
11866 | */ | |
93a17b20 | 11867 | else { |
02aa26ce | 11868 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 11869 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 11870 | /* embedded newlines increment the line count */ |
3280af22 | 11871 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11872 | CopLINE_inc(PL_curcop); |
02aa26ce | 11873 | /* backslashes can escape the open or closing characters */ |
3280af22 | 11874 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
11875 | if (!keep_quoted && |
11876 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
11877 | s++; |
11878 | else | |
11879 | *to++ = *s++; | |
11880 | } | |
02aa26ce | 11881 | /* allow nested opens and closes */ |
3280af22 | 11882 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 11883 | break; |
3280af22 | 11884 | else if (*s == PL_multi_open) |
93a17b20 | 11885 | brackets++; |
63cd0674 | 11886 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11887 | has_utf8 = TRUE; |
93a17b20 LW |
11888 | *to = *s; |
11889 | } | |
11890 | } | |
02aa26ce | 11891 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 11892 | *to = '\0'; |
95a20fc0 | 11893 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 11894 | |
02aa26ce NT |
11895 | /* |
11896 | * this next chunk reads more into the buffer if we're not done yet | |
11897 | */ | |
11898 | ||
b1c7b182 GS |
11899 | if (s < PL_bufend) |
11900 | break; /* handle case where we are done yet :-) */ | |
79072805 | 11901 | |
6a27c188 | 11902 | #ifndef PERL_STRICT_CR |
95a20fc0 | 11903 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
11904 | if ((to[-2] == '\r' && to[-1] == '\n') || |
11905 | (to[-2] == '\n' && to[-1] == '\r')) | |
11906 | { | |
f63a84b2 LW |
11907 | to[-2] = '\n'; |
11908 | to--; | |
95a20fc0 | 11909 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
11910 | } |
11911 | else if (to[-1] == '\r') | |
11912 | to[-1] = '\n'; | |
11913 | } | |
95a20fc0 | 11914 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
11915 | to[-1] = '\n'; |
11916 | #endif | |
11917 | ||
220e2d4e | 11918 | read_more_line: |
02aa26ce NT |
11919 | /* if we're out of file, or a read fails, bail and reset the current |
11920 | line marker so we can report where the unterminated string began | |
11921 | */ | |
5db06880 NC |
11922 | #ifdef PERL_MAD |
11923 | if (PL_madskills) { | |
c35e046a | 11924 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 NC |
11925 | if (PL_thisstuff) |
11926 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11927 | else |
cd81e915 | 11928 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11929 | } |
11930 | #endif | |
3280af22 NIS |
11931 | if (!PL_rsfp || |
11932 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { | |
c07a80fd | 11933 | sv_free(sv); |
eb160463 | 11934 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
bd61b366 | 11935 | return NULL; |
79072805 | 11936 | } |
5db06880 NC |
11937 | #ifdef PERL_MAD |
11938 | stuffstart = 0; | |
11939 | #endif | |
02aa26ce | 11940 | /* we read a line, so increment our line counter */ |
57843af0 | 11941 | CopLINE_inc(PL_curcop); |
a0ed51b3 | 11942 | |
02aa26ce | 11943 | /* update debugger info */ |
80a702cd | 11944 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 11945 | update_debugger_info(PL_linestr, NULL, 0); |
a0ed51b3 | 11946 | |
3280af22 NIS |
11947 | /* having changed the buffer, we must update PL_bufend */ |
11948 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11949 | PL_last_lop = PL_last_uni = NULL; |
378cc40b | 11950 | } |
4e553d73 | 11951 | |
02aa26ce NT |
11952 | /* at this point, we have successfully read the delimited string */ |
11953 | ||
220e2d4e | 11954 | if (!PL_encoding || UTF) { |
5db06880 NC |
11955 | #ifdef PERL_MAD |
11956 | if (PL_madskills) { | |
c35e046a | 11957 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
29522234 | 11958 | const int len = s - tstart; |
cd81e915 | 11959 | if (PL_thisstuff) |
c35e046a | 11960 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11961 | else |
c35e046a | 11962 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11963 | if (!PL_thisclose && !keep_delims) |
11964 | PL_thisclose = newSVpvn(s,termlen); | |
5db06880 NC |
11965 | } |
11966 | #endif | |
11967 | ||
220e2d4e IH |
11968 | if (keep_delims) |
11969 | sv_catpvn(sv, s, termlen); | |
11970 | s += termlen; | |
11971 | } | |
5db06880 NC |
11972 | #ifdef PERL_MAD |
11973 | else { | |
11974 | if (PL_madskills) { | |
c35e046a AL |
11975 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
11976 | const int len = s - tstart - termlen; | |
cd81e915 | 11977 | if (PL_thisstuff) |
c35e046a | 11978 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11979 | else |
c35e046a | 11980 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11981 | if (!PL_thisclose && !keep_delims) |
11982 | PL_thisclose = newSVpvn(s - termlen,termlen); | |
5db06880 NC |
11983 | } |
11984 | } | |
11985 | #endif | |
220e2d4e | 11986 | if (has_utf8 || PL_encoding) |
b1c7b182 | 11987 | SvUTF8_on(sv); |
d0063567 | 11988 | |
57843af0 | 11989 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
11990 | |
11991 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
11992 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
11993 | SvLEN_set(sv, SvCUR(sv) + 1); | |
b7e9a5c2 | 11994 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 11995 | } |
02aa26ce NT |
11996 | |
11997 | /* decide whether this is the first or second quoted string we've read | |
11998 | for this op | |
11999 | */ | |
4e553d73 | 12000 | |
3280af22 NIS |
12001 | if (PL_lex_stuff) |
12002 | PL_lex_repl = sv; | |
79072805 | 12003 | else |
3280af22 | 12004 | PL_lex_stuff = sv; |
378cc40b LW |
12005 | return s; |
12006 | } | |
12007 | ||
02aa26ce NT |
12008 | /* |
12009 | scan_num | |
12010 | takes: pointer to position in buffer | |
12011 | returns: pointer to new position in buffer | |
6154021b | 12012 | side-effects: builds ops for the constant in pl_yylval.op |
02aa26ce NT |
12013 | |
12014 | Read a number in any of the formats that Perl accepts: | |
12015 | ||
7fd134d9 JH |
12016 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
12017 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
12018 | 0b[01](_?[01])* |
12019 | 0[0-7](_?[0-7])* | |
12020 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 12021 | |
3280af22 | 12022 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
12023 | thing it reads. |
12024 | ||
12025 | If it reads a number without a decimal point or an exponent, it will | |
12026 | try converting the number to an integer and see if it can do so | |
12027 | without loss of precision. | |
12028 | */ | |
4e553d73 | 12029 | |
378cc40b | 12030 | char * |
bfed75c6 | 12031 | Perl_scan_num(pTHX_ const char *start, YYSTYPE* lvalp) |
378cc40b | 12032 | { |
97aff369 | 12033 | dVAR; |
bfed75c6 | 12034 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
12035 | register char *d; /* destination in temp buffer */ |
12036 | register char *e; /* end of temp buffer */ | |
86554af2 | 12037 | NV nv; /* number read, as a double */ |
a0714e2c | 12038 | SV *sv = NULL; /* place to put the converted number */ |
a86a20aa | 12039 | bool floatit; /* boolean: int or float? */ |
cbbf8932 | 12040 | const char *lastub = NULL; /* position of last underbar */ |
bfed75c6 | 12041 | static char const number_too_long[] = "Number too long"; |
378cc40b | 12042 | |
7918f24d NC |
12043 | PERL_ARGS_ASSERT_SCAN_NUM; |
12044 | ||
02aa26ce NT |
12045 | /* We use the first character to decide what type of number this is */ |
12046 | ||
378cc40b | 12047 | switch (*s) { |
79072805 | 12048 | default: |
cea2e8a9 | 12049 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 12050 | |
02aa26ce | 12051 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 12052 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
12053 | case '0': |
12054 | { | |
02aa26ce NT |
12055 | /* variables: |
12056 | u holds the "number so far" | |
4f19785b WSI |
12057 | shift the power of 2 of the base |
12058 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
12059 | overflowed was the number more than we can hold? |
12060 | ||
12061 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
12062 | we in octal/hex/binary?" indicator to disallow hex characters |
12063 | when in octal mode. | |
02aa26ce | 12064 | */ |
9e24b6e2 JH |
12065 | NV n = 0.0; |
12066 | UV u = 0; | |
79072805 | 12067 | I32 shift; |
9e24b6e2 | 12068 | bool overflowed = FALSE; |
61f33854 | 12069 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
27da23d5 JH |
12070 | static const NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
12071 | static const char* const bases[5] = | |
12072 | { "", "binary", "", "octal", "hexadecimal" }; | |
12073 | static const char* const Bases[5] = | |
12074 | { "", "Binary", "", "Octal", "Hexadecimal" }; | |
12075 | static const char* const maxima[5] = | |
12076 | { "", | |
12077 | "0b11111111111111111111111111111111", | |
12078 | "", | |
12079 | "037777777777", | |
12080 | "0xffffffff" }; | |
bfed75c6 | 12081 | const char *base, *Base, *max; |
378cc40b | 12082 | |
02aa26ce | 12083 | /* check for hex */ |
378cc40b LW |
12084 | if (s[1] == 'x') { |
12085 | shift = 4; | |
12086 | s += 2; | |
61f33854 | 12087 | just_zero = FALSE; |
4f19785b WSI |
12088 | } else if (s[1] == 'b') { |
12089 | shift = 1; | |
12090 | s += 2; | |
61f33854 | 12091 | just_zero = FALSE; |
378cc40b | 12092 | } |
02aa26ce | 12093 | /* check for a decimal in disguise */ |
b78218b7 | 12094 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 12095 | goto decimal; |
02aa26ce | 12096 | /* so it must be octal */ |
928753ea | 12097 | else { |
378cc40b | 12098 | shift = 3; |
928753ea JH |
12099 | s++; |
12100 | } | |
12101 | ||
12102 | if (*s == '_') { | |
12103 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12104 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12105 | "Misplaced _ in number"); |
12106 | lastub = s++; | |
12107 | } | |
9e24b6e2 JH |
12108 | |
12109 | base = bases[shift]; | |
12110 | Base = Bases[shift]; | |
12111 | max = maxima[shift]; | |
02aa26ce | 12112 | |
4f19785b | 12113 | /* read the rest of the number */ |
378cc40b | 12114 | for (;;) { |
9e24b6e2 | 12115 | /* x is used in the overflow test, |
893fe2c2 | 12116 | b is the digit we're adding on. */ |
9e24b6e2 | 12117 | UV x, b; |
55497cff | 12118 | |
378cc40b | 12119 | switch (*s) { |
02aa26ce NT |
12120 | |
12121 | /* if we don't mention it, we're done */ | |
378cc40b LW |
12122 | default: |
12123 | goto out; | |
02aa26ce | 12124 | |
928753ea | 12125 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 12126 | case '_': |
041457d9 | 12127 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12128 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12129 | "Misplaced _ in number"); |
12130 | lastub = s++; | |
de3bb511 | 12131 | break; |
02aa26ce NT |
12132 | |
12133 | /* 8 and 9 are not octal */ | |
378cc40b | 12134 | case '8': case '9': |
4f19785b | 12135 | if (shift == 3) |
cea2e8a9 | 12136 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 12137 | /* FALL THROUGH */ |
02aa26ce NT |
12138 | |
12139 | /* octal digits */ | |
4f19785b | 12140 | case '2': case '3': case '4': |
378cc40b | 12141 | case '5': case '6': case '7': |
4f19785b | 12142 | if (shift == 1) |
cea2e8a9 | 12143 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
12144 | /* FALL THROUGH */ |
12145 | ||
12146 | case '0': case '1': | |
02aa26ce | 12147 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 12148 | goto digit; |
02aa26ce NT |
12149 | |
12150 | /* hex digits */ | |
378cc40b LW |
12151 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
12152 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 12153 | /* make sure they said 0x */ |
378cc40b LW |
12154 | if (shift != 4) |
12155 | goto out; | |
55497cff | 12156 | b = (*s++ & 7) + 9; |
02aa26ce NT |
12157 | |
12158 | /* Prepare to put the digit we have onto the end | |
12159 | of the number so far. We check for overflows. | |
12160 | */ | |
12161 | ||
55497cff | 12162 | digit: |
61f33854 | 12163 | just_zero = FALSE; |
9e24b6e2 JH |
12164 | if (!overflowed) { |
12165 | x = u << shift; /* make room for the digit */ | |
12166 | ||
12167 | if ((x >> shift) != u | |
12168 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
12169 | overflowed = TRUE; |
12170 | n = (NV) u; | |
767a6a26 | 12171 | if (ckWARN_d(WARN_OVERFLOW)) |
9014280d | 12172 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), |
9e24b6e2 JH |
12173 | "Integer overflow in %s number", |
12174 | base); | |
12175 | } else | |
12176 | u = x | b; /* add the digit to the end */ | |
12177 | } | |
12178 | if (overflowed) { | |
12179 | n *= nvshift[shift]; | |
12180 | /* If an NV has not enough bits in its | |
12181 | * mantissa to represent an UV this summing of | |
12182 | * small low-order numbers is a waste of time | |
12183 | * (because the NV cannot preserve the | |
12184 | * low-order bits anyway): we could just | |
12185 | * remember when did we overflow and in the | |
12186 | * end just multiply n by the right | |
12187 | * amount. */ | |
12188 | n += (NV) b; | |
55497cff | 12189 | } |
378cc40b LW |
12190 | break; |
12191 | } | |
12192 | } | |
02aa26ce NT |
12193 | |
12194 | /* if we get here, we had success: make a scalar value from | |
12195 | the number. | |
12196 | */ | |
378cc40b | 12197 | out: |
928753ea JH |
12198 | |
12199 | /* final misplaced underbar check */ | |
12200 | if (s[-1] == '_') { | |
12201 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12202 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
12203 | } |
12204 | ||
561b68a9 | 12205 | sv = newSV(0); |
9e24b6e2 | 12206 | if (overflowed) { |
041457d9 | 12207 | if (n > 4294967295.0 && ckWARN(WARN_PORTABLE)) |
9014280d | 12208 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
12209 | "%s number > %s non-portable", |
12210 | Base, max); | |
12211 | sv_setnv(sv, n); | |
12212 | } | |
12213 | else { | |
15041a67 | 12214 | #if UVSIZE > 4 |
041457d9 | 12215 | if (u > 0xffffffff && ckWARN(WARN_PORTABLE)) |
9014280d | 12216 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
12217 | "%s number > %s non-portable", |
12218 | Base, max); | |
2cc4c2dc | 12219 | #endif |
9e24b6e2 JH |
12220 | sv_setuv(sv, u); |
12221 | } | |
61f33854 | 12222 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
bfed75c6 | 12223 | sv = new_constant(start, s - start, "integer", |
eb0d8d16 | 12224 | sv, NULL, NULL, 0); |
61f33854 | 12225 | else if (PL_hints & HINT_NEW_BINARY) |
eb0d8d16 | 12226 | sv = new_constant(start, s - start, "binary", sv, NULL, NULL, 0); |
378cc40b LW |
12227 | } |
12228 | break; | |
02aa26ce NT |
12229 | |
12230 | /* | |
12231 | handle decimal numbers. | |
12232 | we're also sent here when we read a 0 as the first digit | |
12233 | */ | |
378cc40b LW |
12234 | case '1': case '2': case '3': case '4': case '5': |
12235 | case '6': case '7': case '8': case '9': case '.': | |
12236 | decimal: | |
3280af22 NIS |
12237 | d = PL_tokenbuf; |
12238 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 12239 | floatit = FALSE; |
02aa26ce NT |
12240 | |
12241 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 12242 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 12243 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
12244 | if -w is on |
12245 | */ | |
93a17b20 | 12246 | if (*s == '_') { |
041457d9 | 12247 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12248 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12249 | "Misplaced _ in number"); |
12250 | lastub = s++; | |
93a17b20 | 12251 | } |
fc36a67e | 12252 | else { |
02aa26ce | 12253 | /* check for end of fixed-length buffer */ |
fc36a67e | 12254 | if (d >= e) |
cea2e8a9 | 12255 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 12256 | /* if we're ok, copy the character */ |
378cc40b | 12257 | *d++ = *s++; |
fc36a67e | 12258 | } |
378cc40b | 12259 | } |
02aa26ce NT |
12260 | |
12261 | /* final misplaced underbar check */ | |
928753ea | 12262 | if (lastub && s == lastub + 1) { |
d008e5eb | 12263 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 12264 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 12265 | } |
02aa26ce NT |
12266 | |
12267 | /* read a decimal portion if there is one. avoid | |
12268 | 3..5 being interpreted as the number 3. followed | |
12269 | by .5 | |
12270 | */ | |
2f3197b3 | 12271 | if (*s == '.' && s[1] != '.') { |
79072805 | 12272 | floatit = TRUE; |
378cc40b | 12273 | *d++ = *s++; |
02aa26ce | 12274 | |
928753ea JH |
12275 | if (*s == '_') { |
12276 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12277 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12278 | "Misplaced _ in number"); |
12279 | lastub = s; | |
12280 | } | |
12281 | ||
12282 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 12283 | */ |
fc36a67e | 12284 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 12285 | /* fixed length buffer check */ |
fc36a67e | 12286 | if (d >= e) |
cea2e8a9 | 12287 | Perl_croak(aTHX_ number_too_long); |
928753ea | 12288 | if (*s == '_') { |
041457d9 | 12289 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12290 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12291 | "Misplaced _ in number"); |
12292 | lastub = s; | |
12293 | } | |
12294 | else | |
fc36a67e | 12295 | *d++ = *s; |
378cc40b | 12296 | } |
928753ea JH |
12297 | /* fractional part ending in underbar? */ |
12298 | if (s[-1] == '_') { | |
12299 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12300 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12301 | "Misplaced _ in number"); |
12302 | } | |
dd629d5b GS |
12303 | if (*s == '.' && isDIGIT(s[1])) { |
12304 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 12305 | s = start; |
dd629d5b GS |
12306 | goto vstring; |
12307 | } | |
378cc40b | 12308 | } |
02aa26ce NT |
12309 | |
12310 | /* read exponent part, if present */ | |
3792a11b | 12311 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
12312 | floatit = TRUE; |
12313 | s++; | |
02aa26ce NT |
12314 | |
12315 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 12316 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 12317 | |
7fd134d9 JH |
12318 | /* stray preinitial _ */ |
12319 | if (*s == '_') { | |
12320 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12321 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12322 | "Misplaced _ in number"); |
12323 | lastub = s++; | |
12324 | } | |
12325 | ||
02aa26ce | 12326 | /* allow positive or negative exponent */ |
378cc40b LW |
12327 | if (*s == '+' || *s == '-') |
12328 | *d++ = *s++; | |
02aa26ce | 12329 | |
7fd134d9 JH |
12330 | /* stray initial _ */ |
12331 | if (*s == '_') { | |
12332 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12333 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12334 | "Misplaced _ in number"); |
12335 | lastub = s++; | |
12336 | } | |
12337 | ||
7fd134d9 JH |
12338 | /* read digits of exponent */ |
12339 | while (isDIGIT(*s) || *s == '_') { | |
12340 | if (isDIGIT(*s)) { | |
12341 | if (d >= e) | |
12342 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 12343 | *d++ = *s++; |
7fd134d9 JH |
12344 | } |
12345 | else { | |
041457d9 DM |
12346 | if (((lastub && s == lastub + 1) || |
12347 | (!isDIGIT(s[1]) && s[1] != '_')) | |
12348 | && ckWARN(WARN_SYNTAX)) | |
9014280d | 12349 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 | 12350 | "Misplaced _ in number"); |
b3b48e3e | 12351 | lastub = s++; |
7fd134d9 | 12352 | } |
7fd134d9 | 12353 | } |
378cc40b | 12354 | } |
02aa26ce | 12355 | |
02aa26ce NT |
12356 | |
12357 | /* make an sv from the string */ | |
561b68a9 | 12358 | sv = newSV(0); |
097ee67d | 12359 | |
0b7fceb9 | 12360 | /* |
58bb9ec3 NC |
12361 | We try to do an integer conversion first if no characters |
12362 | indicating "float" have been found. | |
0b7fceb9 MU |
12363 | */ |
12364 | ||
12365 | if (!floatit) { | |
58bb9ec3 | 12366 | UV uv; |
6136c704 | 12367 | const int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); |
58bb9ec3 NC |
12368 | |
12369 | if (flags == IS_NUMBER_IN_UV) { | |
12370 | if (uv <= IV_MAX) | |
86554af2 | 12371 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 12372 | else |
c239479b | 12373 | sv_setuv(sv, uv); |
58bb9ec3 NC |
12374 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
12375 | if (uv <= (UV) IV_MIN) | |
12376 | sv_setiv(sv, -(IV)uv); | |
12377 | else | |
12378 | floatit = TRUE; | |
12379 | } else | |
12380 | floatit = TRUE; | |
12381 | } | |
0b7fceb9 | 12382 | if (floatit) { |
58bb9ec3 NC |
12383 | /* terminate the string */ |
12384 | *d = '\0'; | |
86554af2 JH |
12385 | nv = Atof(PL_tokenbuf); |
12386 | sv_setnv(sv, nv); | |
12387 | } | |
86554af2 | 12388 | |
eb0d8d16 NC |
12389 | if ( floatit |
12390 | ? (PL_hints & HINT_NEW_FLOAT) : (PL_hints & HINT_NEW_INTEGER) ) { | |
12391 | const char *const key = floatit ? "float" : "integer"; | |
12392 | const STRLEN keylen = floatit ? 5 : 7; | |
12393 | sv = S_new_constant(aTHX_ PL_tokenbuf, d - PL_tokenbuf, | |
12394 | key, keylen, sv, NULL, NULL, 0); | |
12395 | } | |
378cc40b | 12396 | break; |
0b7fceb9 | 12397 | |
e312add1 | 12398 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 12399 | case 'v': |
dd629d5b | 12400 | vstring: |
561b68a9 | 12401 | sv = newSV(5); /* preallocate storage space */ |
65b06e02 | 12402 | s = scan_vstring(s, PL_bufend, sv); |
a7cb1f99 | 12403 | break; |
79072805 | 12404 | } |
a687059c | 12405 | |
02aa26ce NT |
12406 | /* make the op for the constant and return */ |
12407 | ||
a86a20aa | 12408 | if (sv) |
b73d6f50 | 12409 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 12410 | else |
5f66b61c | 12411 | lvalp->opval = NULL; |
a687059c | 12412 | |
73d840c0 | 12413 | return (char *)s; |
378cc40b LW |
12414 | } |
12415 | ||
76e3520e | 12416 | STATIC char * |
cea2e8a9 | 12417 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 12418 | { |
97aff369 | 12419 | dVAR; |
79072805 | 12420 | register char *eol; |
378cc40b | 12421 | register char *t; |
6136c704 | 12422 | SV * const stuff = newSVpvs(""); |
79072805 | 12423 | bool needargs = FALSE; |
c5ee2135 | 12424 | bool eofmt = FALSE; |
5db06880 NC |
12425 | #ifdef PERL_MAD |
12426 | char *tokenstart = s; | |
4f61fd4b JC |
12427 | SV* savewhite = NULL; |
12428 | ||
5db06880 | 12429 | if (PL_madskills) { |
cd81e915 NC |
12430 | savewhite = PL_thiswhite; |
12431 | PL_thiswhite = 0; | |
5db06880 NC |
12432 | } |
12433 | #endif | |
378cc40b | 12434 | |
7918f24d NC |
12435 | PERL_ARGS_ASSERT_SCAN_FORMLINE; |
12436 | ||
79072805 | 12437 | while (!needargs) { |
a1b95068 | 12438 | if (*s == '.') { |
c35e046a | 12439 | t = s+1; |
51882d45 | 12440 | #ifdef PERL_STRICT_CR |
c35e046a AL |
12441 | while (SPACE_OR_TAB(*t)) |
12442 | t++; | |
51882d45 | 12443 | #else |
c35e046a AL |
12444 | while (SPACE_OR_TAB(*t) || *t == '\r') |
12445 | t++; | |
51882d45 | 12446 | #endif |
c5ee2135 WL |
12447 | if (*t == '\n' || t == PL_bufend) { |
12448 | eofmt = TRUE; | |
79072805 | 12449 | break; |
c5ee2135 | 12450 | } |
79072805 | 12451 | } |
3280af22 | 12452 | if (PL_in_eval && !PL_rsfp) { |
07409e01 | 12453 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 12454 | if (!eol++) |
3280af22 | 12455 | eol = PL_bufend; |
0f85fab0 LW |
12456 | } |
12457 | else | |
3280af22 | 12458 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 12459 | if (*s != '#') { |
a0d0e21e LW |
12460 | for (t = s; t < eol; t++) { |
12461 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
12462 | needargs = FALSE; | |
12463 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 12464 | } |
a0d0e21e LW |
12465 | if (*t == '@' || *t == '^') |
12466 | needargs = TRUE; | |
378cc40b | 12467 | } |
7121b347 MG |
12468 | if (eol > s) { |
12469 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 12470 | #ifndef PERL_STRICT_CR |
7121b347 MG |
12471 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
12472 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
12473 | end[-2] = '\n'; | |
12474 | end[-1] = '\0'; | |
b162af07 | 12475 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 12476 | } |
2dc4c65b | 12477 | #endif |
7121b347 MG |
12478 | } |
12479 | else | |
12480 | break; | |
79072805 | 12481 | } |
95a20fc0 | 12482 | s = (char*)eol; |
3280af22 | 12483 | if (PL_rsfp) { |
5db06880 NC |
12484 | #ifdef PERL_MAD |
12485 | if (PL_madskills) { | |
cd81e915 NC |
12486 | if (PL_thistoken) |
12487 | sv_catpvn(PL_thistoken, tokenstart, PL_bufend - tokenstart); | |
5db06880 | 12488 | else |
cd81e915 | 12489 | PL_thistoken = newSVpvn(tokenstart, PL_bufend - tokenstart); |
5db06880 NC |
12490 | } |
12491 | #endif | |
3280af22 | 12492 | s = filter_gets(PL_linestr, PL_rsfp, 0); |
5db06880 NC |
12493 | #ifdef PERL_MAD |
12494 | tokenstart = PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
12495 | #else | |
3280af22 | 12496 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); |
5db06880 | 12497 | #endif |
3280af22 | 12498 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); |
bd61b366 | 12499 | PL_last_lop = PL_last_uni = NULL; |
79072805 | 12500 | if (!s) { |
3280af22 | 12501 | s = PL_bufptr; |
378cc40b LW |
12502 | break; |
12503 | } | |
378cc40b | 12504 | } |
463ee0b2 | 12505 | incline(s); |
79072805 | 12506 | } |
a0d0e21e LW |
12507 | enough: |
12508 | if (SvCUR(stuff)) { | |
3280af22 | 12509 | PL_expect = XTERM; |
79072805 | 12510 | if (needargs) { |
3280af22 | 12511 | PL_lex_state = LEX_NORMAL; |
cd81e915 | 12512 | start_force(PL_curforce); |
9ded7720 | 12513 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 LW |
12514 | force_next(','); |
12515 | } | |
a0d0e21e | 12516 | else |
3280af22 | 12517 | PL_lex_state = LEX_FORMLINE; |
1bd51a4c | 12518 | if (!IN_BYTES) { |
95a20fc0 | 12519 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
1bd51a4c IH |
12520 | SvUTF8_on(stuff); |
12521 | else if (PL_encoding) | |
12522 | sv_recode_to_utf8(stuff, PL_encoding); | |
12523 | } | |
cd81e915 | 12524 | start_force(PL_curforce); |
9ded7720 | 12525 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 12526 | force_next(THING); |
cd81e915 | 12527 | start_force(PL_curforce); |
9ded7720 | 12528 | NEXTVAL_NEXTTOKE.ival = OP_FORMLINE; |
79072805 | 12529 | force_next(LSTOP); |
378cc40b | 12530 | } |
79072805 | 12531 | else { |
8990e307 | 12532 | SvREFCNT_dec(stuff); |
c5ee2135 WL |
12533 | if (eofmt) |
12534 | PL_lex_formbrack = 0; | |
3280af22 | 12535 | PL_bufptr = s; |
79072805 | 12536 | } |
5db06880 NC |
12537 | #ifdef PERL_MAD |
12538 | if (PL_madskills) { | |
cd81e915 NC |
12539 | if (PL_thistoken) |
12540 | sv_catpvn(PL_thistoken, tokenstart, s - tokenstart); | |
5db06880 | 12541 | else |
cd81e915 NC |
12542 | PL_thistoken = newSVpvn(tokenstart, s - tokenstart); |
12543 | PL_thiswhite = savewhite; | |
5db06880 NC |
12544 | } |
12545 | #endif | |
79072805 | 12546 | return s; |
378cc40b | 12547 | } |
a687059c | 12548 | |
ba6d6ac9 | 12549 | I32 |
864dbfa3 | 12550 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 12551 | { |
97aff369 | 12552 | dVAR; |
a3b680e6 | 12553 | const I32 oldsavestack_ix = PL_savestack_ix; |
6136c704 | 12554 | CV* const outsidecv = PL_compcv; |
8990e307 | 12555 | |
3280af22 NIS |
12556 | if (PL_compcv) { |
12557 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 12558 | } |
7766f137 | 12559 | SAVEI32(PL_subline); |
3280af22 | 12560 | save_item(PL_subname); |
3280af22 | 12561 | SAVESPTR(PL_compcv); |
3280af22 | 12562 | |
b9f83d2f | 12563 | PL_compcv = (CV*)newSV_type(is_format ? SVt_PVFM : SVt_PVCV); |
3280af22 NIS |
12564 | CvFLAGS(PL_compcv) |= flags; |
12565 | ||
57843af0 | 12566 | PL_subline = CopLINE(PL_curcop); |
dd2155a4 | 12567 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
b37c2d43 | 12568 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc_simple(outsidecv); |
a3985cdc | 12569 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
748a9306 | 12570 | |
8990e307 LW |
12571 | return oldsavestack_ix; |
12572 | } | |
12573 | ||
084592ab CN |
12574 | #ifdef __SC__ |
12575 | #pragma segment Perl_yylex | |
12576 | #endif | |
8990e307 | 12577 | int |
15f169a1 | 12578 | Perl_yywarn(pTHX_ const char *const s) |
8990e307 | 12579 | { |
97aff369 | 12580 | dVAR; |
7918f24d NC |
12581 | |
12582 | PERL_ARGS_ASSERT_YYWARN; | |
12583 | ||
faef0170 | 12584 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 12585 | yyerror(s); |
faef0170 | 12586 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 12587 | return 0; |
8990e307 LW |
12588 | } |
12589 | ||
12590 | int | |
15f169a1 | 12591 | Perl_yyerror(pTHX_ const char *const s) |
463ee0b2 | 12592 | { |
97aff369 | 12593 | dVAR; |
bfed75c6 AL |
12594 | const char *where = NULL; |
12595 | const char *context = NULL; | |
68dc0745 | 12596 | int contlen = -1; |
46fc3d4c | 12597 | SV *msg; |
5912531f | 12598 | int yychar = PL_parser->yychar; |
463ee0b2 | 12599 | |
7918f24d NC |
12600 | PERL_ARGS_ASSERT_YYERROR; |
12601 | ||
3280af22 | 12602 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 12603 | where = "at EOF"; |
8bcfe651 TM |
12604 | else if (PL_oldoldbufptr && PL_bufptr > PL_oldoldbufptr && |
12605 | PL_bufptr - PL_oldoldbufptr < 200 && PL_oldoldbufptr != PL_oldbufptr && | |
12606 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12607 | /* |
12608 | Only for NetWare: | |
12609 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12610 | when the script has error such as not having the closing quotes like: | |
12611 | if ($var eq "value) | |
12612 | Checking of white spaces is anyway done in NetWare code. | |
12613 | */ | |
12614 | #ifndef NETWARE | |
3280af22 NIS |
12615 | while (isSPACE(*PL_oldoldbufptr)) |
12616 | PL_oldoldbufptr++; | |
f355267c | 12617 | #endif |
3280af22 NIS |
12618 | context = PL_oldoldbufptr; |
12619 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 12620 | } |
8bcfe651 TM |
12621 | else if (PL_oldbufptr && PL_bufptr > PL_oldbufptr && |
12622 | PL_bufptr - PL_oldbufptr < 200 && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12623 | /* |
12624 | Only for NetWare: | |
12625 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12626 | when the script has error such as not having the closing quotes like: | |
12627 | if ($var eq "value) | |
12628 | Checking of white spaces is anyway done in NetWare code. | |
12629 | */ | |
12630 | #ifndef NETWARE | |
3280af22 NIS |
12631 | while (isSPACE(*PL_oldbufptr)) |
12632 | PL_oldbufptr++; | |
f355267c | 12633 | #endif |
3280af22 NIS |
12634 | context = PL_oldbufptr; |
12635 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
12636 | } |
12637 | else if (yychar > 255) | |
68dc0745 | 12638 | where = "next token ???"; |
12fbd33b | 12639 | else if (yychar == -2) { /* YYEMPTY */ |
3280af22 NIS |
12640 | if (PL_lex_state == LEX_NORMAL || |
12641 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 12642 | where = "at end of line"; |
3280af22 | 12643 | else if (PL_lex_inpat) |
68dc0745 | 12644 | where = "within pattern"; |
463ee0b2 | 12645 | else |
68dc0745 | 12646 | where = "within string"; |
463ee0b2 | 12647 | } |
46fc3d4c | 12648 | else { |
84bafc02 | 12649 | SV * const where_sv = newSVpvs_flags("next char ", SVs_TEMP); |
46fc3d4c | 12650 | if (yychar < 32) |
cea2e8a9 | 12651 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
5e7aa789 | 12652 | else if (isPRINT_LC(yychar)) { |
88c9ea1e | 12653 | const char string = yychar; |
5e7aa789 NC |
12654 | sv_catpvn(where_sv, &string, 1); |
12655 | } | |
463ee0b2 | 12656 | else |
cea2e8a9 | 12657 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
95a20fc0 | 12658 | where = SvPVX_const(where_sv); |
463ee0b2 | 12659 | } |
46fc3d4c | 12660 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 12661 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 12662 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 12663 | if (context) |
cea2e8a9 | 12664 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 12665 | else |
cea2e8a9 | 12666 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 12667 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 12668 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 12669 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 12670 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 12671 | PL_multi_end = 0; |
a0d0e21e | 12672 | } |
500960a6 RD |
12673 | if (PL_in_eval & EVAL_WARNONLY) { |
12674 | if (ckWARN_d(WARN_SYNTAX)) | |
12675 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, SVfARG(msg)); | |
12676 | } | |
463ee0b2 | 12677 | else |
5a844595 | 12678 | qerror(msg); |
c7d6bfb2 GS |
12679 | if (PL_error_count >= 10) { |
12680 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 12681 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
be2597df | 12682 | SVfARG(ERRSV), OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
12683 | else |
12684 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 12685 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 12686 | } |
3280af22 | 12687 | PL_in_my = 0; |
5c284bb0 | 12688 | PL_in_my_stash = NULL; |
463ee0b2 LW |
12689 | return 0; |
12690 | } | |
084592ab CN |
12691 | #ifdef __SC__ |
12692 | #pragma segment Main | |
12693 | #endif | |
4e35701f | 12694 | |
b250498f | 12695 | STATIC char* |
3ae08724 | 12696 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 12697 | { |
97aff369 | 12698 | dVAR; |
f54cb97a | 12699 | const STRLEN slen = SvCUR(PL_linestr); |
7918f24d NC |
12700 | |
12701 | PERL_ARGS_ASSERT_SWALLOW_BOM; | |
12702 | ||
7aa207d6 | 12703 | switch (s[0]) { |
4e553d73 NIS |
12704 | case 0xFF: |
12705 | if (s[1] == 0xFE) { | |
7aa207d6 | 12706 | /* UTF-16 little-endian? (or UTF32-LE?) */ |
3ae08724 | 12707 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
7aa207d6 | 12708 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-LE"); |
01ec43d0 | 12709 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12710 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF16-LE script encoding (BOM)\n"); |
3ae08724 | 12711 | s += 2; |
7aa207d6 | 12712 | utf16le: |
dea0fc0b JH |
12713 | if (PL_bufend > (char*)s) { |
12714 | U8 *news; | |
12715 | I32 newlen; | |
12716 | ||
12717 | filter_add(utf16rev_textfilter, NULL); | |
a02a5408 | 12718 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd | 12719 | utf16_to_utf8_reversed(s, news, |
aed58286 | 12720 | PL_bufend - (char*)s - 1, |
1de9afcd | 12721 | &newlen); |
7aa207d6 | 12722 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
5db06880 NC |
12723 | #ifdef PERL_MAD |
12724 | s = (U8*)SvPVX(PL_linestr); | |
12725 | Copy(news, s, newlen, U8); | |
12726 | s[newlen] = '\0'; | |
12727 | #endif | |
dea0fc0b | 12728 | Safefree(news); |
7aa207d6 JH |
12729 | SvUTF8_on(PL_linestr); |
12730 | s = (U8*)SvPVX(PL_linestr); | |
5db06880 NC |
12731 | #ifdef PERL_MAD |
12732 | /* FIXME - is this a general bug fix? */ | |
12733 | s[newlen] = '\0'; | |
12734 | #endif | |
7aa207d6 | 12735 | PL_bufend = SvPVX(PL_linestr) + newlen; |
dea0fc0b | 12736 | } |
b250498f | 12737 | #else |
7aa207d6 | 12738 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-LE"); |
b250498f | 12739 | #endif |
01ec43d0 GS |
12740 | } |
12741 | break; | |
78ae23f5 | 12742 | case 0xFE: |
7aa207d6 | 12743 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 12744 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12745 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b | 12746 | s += 2; |
7aa207d6 | 12747 | utf16be: |
dea0fc0b JH |
12748 | if (PL_bufend > (char *)s) { |
12749 | U8 *news; | |
12750 | I32 newlen; | |
12751 | ||
12752 | filter_add(utf16_textfilter, NULL); | |
a02a5408 | 12753 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd RGS |
12754 | utf16_to_utf8(s, news, |
12755 | PL_bufend - (char*)s, | |
12756 | &newlen); | |
7aa207d6 | 12757 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
dea0fc0b | 12758 | Safefree(news); |
7aa207d6 JH |
12759 | SvUTF8_on(PL_linestr); |
12760 | s = (U8*)SvPVX(PL_linestr); | |
12761 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
dea0fc0b | 12762 | } |
b250498f | 12763 | #else |
7aa207d6 | 12764 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-BE"); |
b250498f | 12765 | #endif |
01ec43d0 GS |
12766 | } |
12767 | break; | |
3ae08724 GS |
12768 | case 0xEF: |
12769 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
7aa207d6 | 12770 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
12771 | s += 3; /* UTF-8 */ |
12772 | } | |
12773 | break; | |
12774 | case 0: | |
7aa207d6 JH |
12775 | if (slen > 3) { |
12776 | if (s[1] == 0) { | |
12777 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
12778 | /* UTF-32 big-endian */ | |
12779 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-BE"); | |
12780 | } | |
12781 | } | |
12782 | else if (s[2] == 0 && s[3] != 0) { | |
12783 | /* Leading bytes | |
12784 | * 00 xx 00 xx | |
12785 | * are a good indicator of UTF-16BE. */ | |
12786 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); | |
12787 | goto utf16be; | |
12788 | } | |
01ec43d0 | 12789 | } |
e294cc5d JH |
12790 | #ifdef EBCDIC |
12791 | case 0xDD: | |
12792 | if (slen > 3 && s[1] == 0x73 && s[2] == 0x66 && s[3] == 0x73) { | |
12793 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); | |
12794 | s += 4; /* UTF-8 */ | |
12795 | } | |
12796 | break; | |
12797 | #endif | |
12798 | ||
7aa207d6 JH |
12799 | default: |
12800 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
12801 | /* Leading bytes | |
12802 | * xx 00 xx 00 | |
12803 | * are a good indicator of UTF-16LE. */ | |
12804 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); | |
12805 | goto utf16le; | |
12806 | } | |
01ec43d0 | 12807 | } |
b8f84bb2 | 12808 | return (char*)s; |
b250498f | 12809 | } |
4755096e | 12810 | |
6e3aabd6 GS |
12811 | |
12812 | #ifndef PERL_NO_UTF16_FILTER | |
12813 | static I32 | |
acfe0abc | 12814 | utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12815 | { |
97aff369 | 12816 | dVAR; |
f54cb97a AL |
12817 | const STRLEN old = SvCUR(sv); |
12818 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12819 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12820 | "utf16_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12821 | FPTR2DPTR(void *, utf16_textfilter), |
12822 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12823 | if (count) { |
12824 | U8* tmps; | |
dea0fc0b | 12825 | I32 newlen; |
a02a5408 | 12826 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12827 | Copy(SvPVX_const(sv), tmps, old, char); |
12828 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12829 | SvCUR(sv) - old, &newlen); |
12830 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12831 | } |
1de9afcd RGS |
12832 | DEBUG_P({sv_dump(sv);}); |
12833 | return SvCUR(sv); | |
6e3aabd6 GS |
12834 | } |
12835 | ||
12836 | static I32 | |
acfe0abc | 12837 | utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12838 | { |
97aff369 | 12839 | dVAR; |
f54cb97a AL |
12840 | const STRLEN old = SvCUR(sv); |
12841 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12842 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12843 | "utf16rev_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12844 | FPTR2DPTR(void *, utf16rev_textfilter), |
12845 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12846 | if (count) { |
12847 | U8* tmps; | |
dea0fc0b | 12848 | I32 newlen; |
a02a5408 | 12849 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12850 | Copy(SvPVX_const(sv), tmps, old, char); |
12851 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12852 | SvCUR(sv) - old, &newlen); |
12853 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12854 | } |
1de9afcd | 12855 | DEBUG_P({ sv_dump(sv); }); |
6e3aabd6 GS |
12856 | return count; |
12857 | } | |
12858 | #endif | |
9f4817db | 12859 | |
f333445c JP |
12860 | /* |
12861 | Returns a pointer to the next character after the parsed | |
12862 | vstring, as well as updating the passed in sv. | |
12863 | ||
12864 | Function must be called like | |
12865 | ||
561b68a9 | 12866 | sv = newSV(5); |
65b06e02 | 12867 | s = scan_vstring(s,e,sv); |
f333445c | 12868 | |
65b06e02 | 12869 | where s and e are the start and end of the string. |
f333445c JP |
12870 | The sv should already be large enough to store the vstring |
12871 | passed in, for performance reasons. | |
12872 | ||
12873 | */ | |
12874 | ||
12875 | char * | |
15f169a1 | 12876 | Perl_scan_vstring(pTHX_ const char *s, const char *const e, SV *sv) |
f333445c | 12877 | { |
97aff369 | 12878 | dVAR; |
bfed75c6 AL |
12879 | const char *pos = s; |
12880 | const char *start = s; | |
7918f24d NC |
12881 | |
12882 | PERL_ARGS_ASSERT_SCAN_VSTRING; | |
12883 | ||
f333445c | 12884 | if (*pos == 'v') pos++; /* get past 'v' */ |
65b06e02 | 12885 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
3e884cbf | 12886 | pos++; |
f333445c JP |
12887 | if ( *pos != '.') { |
12888 | /* this may not be a v-string if followed by => */ | |
bfed75c6 | 12889 | const char *next = pos; |
65b06e02 | 12890 | while (next < e && isSPACE(*next)) |
8fc7bb1c | 12891 | ++next; |
65b06e02 | 12892 | if ((e - next) >= 2 && *next == '=' && next[1] == '>' ) { |
f333445c JP |
12893 | /* return string not v-string */ |
12894 | sv_setpvn(sv,(char *)s,pos-s); | |
73d840c0 | 12895 | return (char *)pos; |
f333445c JP |
12896 | } |
12897 | } | |
12898 | ||
12899 | if (!isALPHA(*pos)) { | |
89ebb4a3 | 12900 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
f333445c | 12901 | |
d4c19fe8 AL |
12902 | if (*s == 'v') |
12903 | s++; /* get past 'v' */ | |
f333445c JP |
12904 | |
12905 | sv_setpvn(sv, "", 0); | |
12906 | ||
12907 | for (;;) { | |
d4c19fe8 | 12908 | /* this is atoi() that tolerates underscores */ |
0bd48802 AL |
12909 | U8 *tmpend; |
12910 | UV rev = 0; | |
d4c19fe8 AL |
12911 | const char *end = pos; |
12912 | UV mult = 1; | |
12913 | while (--end >= s) { | |
12914 | if (*end != '_') { | |
12915 | const UV orev = rev; | |
f333445c JP |
12916 | rev += (*end - '0') * mult; |
12917 | mult *= 10; | |
12918 | if (orev > rev && ckWARN_d(WARN_OVERFLOW)) | |
12919 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), | |
12920 | "Integer overflow in decimal number"); | |
12921 | } | |
12922 | } | |
12923 | #ifdef EBCDIC | |
12924 | if (rev > 0x7FFFFFFF) | |
12925 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
12926 | #endif | |
12927 | /* Append native character for the rev point */ | |
12928 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
12929 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
12930 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
12931 | SvUTF8_on(sv); | |
65b06e02 | 12932 | if (pos + 1 < e && *pos == '.' && isDIGIT(pos[1])) |
f333445c JP |
12933 | s = ++pos; |
12934 | else { | |
12935 | s = pos; | |
12936 | break; | |
12937 | } | |
65b06e02 | 12938 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
f333445c JP |
12939 | pos++; |
12940 | } | |
12941 | SvPOK_on(sv); | |
12942 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
12943 | SvRMAGICAL_on(sv); | |
12944 | } | |
73d840c0 | 12945 | return (char *)s; |
f333445c JP |
12946 | } |
12947 | ||
1da4ca5f NC |
12948 | /* |
12949 | * Local variables: | |
12950 | * c-indentation-style: bsd | |
12951 | * c-basic-offset: 4 | |
12952 | * indent-tabs-mode: t | |
12953 | * End: | |
12954 | * | |
37442d52 RGS |
12955 | * ex: set ts=8 sts=4 sw=4 noet: |
12956 | */ |