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 | |
5912531f | 26 | #define yylval (PL_parser->yylval) |
d3b6f988 | 27 | |
acdf0a21 DM |
28 | /* YYINITDEPTH -- initial size of the parser's stacks. */ |
29 | #define YYINITDEPTH 200 | |
30 | ||
199e78b7 DM |
31 | /* XXX temporary backwards compatibility */ |
32 | #define PL_lex_brackets (PL_parser->lex_brackets) | |
33 | #define PL_lex_brackstack (PL_parser->lex_brackstack) | |
34 | #define PL_lex_casemods (PL_parser->lex_casemods) | |
35 | #define PL_lex_casestack (PL_parser->lex_casestack) | |
36 | #define PL_lex_defer (PL_parser->lex_defer) | |
37 | #define PL_lex_dojoin (PL_parser->lex_dojoin) | |
38 | #define PL_lex_expect (PL_parser->lex_expect) | |
39 | #define PL_lex_formbrack (PL_parser->lex_formbrack) | |
40 | #define PL_lex_inpat (PL_parser->lex_inpat) | |
41 | #define PL_lex_inwhat (PL_parser->lex_inwhat) | |
42 | #define PL_lex_op (PL_parser->lex_op) | |
43 | #define PL_lex_repl (PL_parser->lex_repl) | |
44 | #define PL_lex_starts (PL_parser->lex_starts) | |
45 | #define PL_lex_stuff (PL_parser->lex_stuff) | |
46 | #define PL_multi_start (PL_parser->multi_start) | |
47 | #define PL_multi_open (PL_parser->multi_open) | |
48 | #define PL_multi_close (PL_parser->multi_close) | |
49 | #define PL_pending_ident (PL_parser->pending_ident) | |
50 | #define PL_preambled (PL_parser->preambled) | |
51 | #define PL_sublex_info (PL_parser->sublex_info) | |
bdc0bf6f | 52 | #define PL_linestr (PL_parser->linestr) |
c2598295 DM |
53 | #define PL_expect (PL_parser->expect) |
54 | #define PL_copline (PL_parser->copline) | |
f06b5848 DM |
55 | #define PL_bufptr (PL_parser->bufptr) |
56 | #define PL_oldbufptr (PL_parser->oldbufptr) | |
57 | #define PL_oldoldbufptr (PL_parser->oldoldbufptr) | |
58 | #define PL_linestart (PL_parser->linestart) | |
59 | #define PL_bufend (PL_parser->bufend) | |
60 | #define PL_last_uni (PL_parser->last_uni) | |
61 | #define PL_last_lop (PL_parser->last_lop) | |
62 | #define PL_last_lop_op (PL_parser->last_lop_op) | |
bc177e6b | 63 | #define PL_lex_state (PL_parser->lex_state) |
2f9285f8 | 64 | #define PL_rsfp (PL_parser->rsfp) |
5486870f | 65 | #define PL_rsfp_filters (PL_parser->rsfp_filters) |
12bd6ede DM |
66 | #define PL_in_my (PL_parser->in_my) |
67 | #define PL_in_my_stash (PL_parser->in_my_stash) | |
14047fc9 | 68 | #define PL_tokenbuf (PL_parser->tokenbuf) |
670a9cb2 | 69 | #define PL_multi_end (PL_parser->multi_end) |
13765c85 | 70 | #define PL_error_count (PL_parser->error_count) |
199e78b7 DM |
71 | |
72 | #ifdef PERL_MAD | |
73 | # define PL_endwhite (PL_parser->endwhite) | |
74 | # define PL_faketokens (PL_parser->faketokens) | |
75 | # define PL_lasttoke (PL_parser->lasttoke) | |
76 | # define PL_nextwhite (PL_parser->nextwhite) | |
77 | # define PL_realtokenstart (PL_parser->realtokenstart) | |
78 | # define PL_skipwhite (PL_parser->skipwhite) | |
79 | # define PL_thisclose (PL_parser->thisclose) | |
80 | # define PL_thismad (PL_parser->thismad) | |
81 | # define PL_thisopen (PL_parser->thisopen) | |
82 | # define PL_thisstuff (PL_parser->thisstuff) | |
83 | # define PL_thistoken (PL_parser->thistoken) | |
84 | # define PL_thiswhite (PL_parser->thiswhite) | |
fb205e7a DM |
85 | # define PL_thiswhite (PL_parser->thiswhite) |
86 | # define PL_nexttoke (PL_parser->nexttoke) | |
87 | # define PL_curforce (PL_parser->curforce) | |
88 | #else | |
89 | # define PL_nexttoke (PL_parser->nexttoke) | |
90 | # define PL_nexttype (PL_parser->nexttype) | |
91 | # define PL_nextval (PL_parser->nextval) | |
199e78b7 DM |
92 | #endif |
93 | ||
3cbf51f5 DM |
94 | static int |
95 | S_pending_ident(pTHX); | |
199e78b7 | 96 | |
0bd48802 | 97 | static const char ident_too_long[] = "Identifier too long"; |
c445ea15 | 98 | static const char commaless_variable_list[] = "comma-less variable list"; |
8903cb82 | 99 | |
6e3aabd6 | 100 | #ifndef PERL_NO_UTF16_FILTER |
acfe0abc GS |
101 | static I32 utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen); |
102 | static I32 utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen); | |
6e3aabd6 | 103 | #endif |
51371543 | 104 | |
29595ff2 | 105 | #ifdef PERL_MAD |
29595ff2 | 106 | # define CURMAD(slot,sv) if (PL_madskills) { curmad(slot,sv); sv = 0; } |
cd81e915 | 107 | # define NEXTVAL_NEXTTOKE PL_nexttoke[PL_curforce].next_val |
9ded7720 | 108 | #else |
5db06880 | 109 | # define CURMAD(slot,sv) |
9ded7720 | 110 | # define NEXTVAL_NEXTTOKE PL_nextval[PL_nexttoke] |
29595ff2 NC |
111 | #endif |
112 | ||
9059aa12 LW |
113 | #define XFAKEBRACK 128 |
114 | #define XENUMMASK 127 | |
115 | ||
39e02b42 JH |
116 | #ifdef USE_UTF8_SCRIPTS |
117 | # define UTF (!IN_BYTES) | |
2b9d42f0 | 118 | #else |
746b446a | 119 | # define UTF ((PL_linestr && DO_UTF8(PL_linestr)) || (PL_hints & HINT_UTF8)) |
2b9d42f0 | 120 | #endif |
a0ed51b3 | 121 | |
61f0cdd9 | 122 | /* In variables named $^X, these are the legal values for X. |
2b92dfce GS |
123 | * 1999-02-27 mjd-perl-patch@plover.com */ |
124 | #define isCONTROLVAR(x) (isUPPER(x) || strchr("[\\]^_?", (x))) | |
125 | ||
bf4acbe4 GS |
126 | /* On MacOS, respect nonbreaking spaces */ |
127 | #ifdef MACOS_TRADITIONAL | |
128 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\312'||(c)=='\t') | |
129 | #else | |
130 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\t') | |
131 | #endif | |
132 | ||
ffb4593c NT |
133 | /* LEX_* are values for PL_lex_state, the state of the lexer. |
134 | * They are arranged oddly so that the guard on the switch statement | |
79072805 LW |
135 | * can get by with a single comparison (if the compiler is smart enough). |
136 | */ | |
137 | ||
fb73857a | 138 | /* #define LEX_NOTPARSING 11 is done in perl.h. */ |
139 | ||
b6007c36 DM |
140 | #define LEX_NORMAL 10 /* normal code (ie not within "...") */ |
141 | #define LEX_INTERPNORMAL 9 /* code within a string, eg "$foo[$x+1]" */ | |
142 | #define LEX_INTERPCASEMOD 8 /* expecting a \U, \Q or \E etc */ | |
143 | #define LEX_INTERPPUSH 7 /* starting a new sublex parse level */ | |
144 | #define LEX_INTERPSTART 6 /* expecting the start of a $var */ | |
145 | ||
146 | /* at end of code, eg "$x" followed by: */ | |
147 | #define LEX_INTERPEND 5 /* ... eg not one of [, { or -> */ | |
148 | #define LEX_INTERPENDMAYBE 4 /* ... eg one of [, { or -> */ | |
149 | ||
150 | #define LEX_INTERPCONCAT 3 /* expecting anything, eg at start of | |
151 | string or after \E, $foo, etc */ | |
152 | #define LEX_INTERPCONST 2 /* NOT USED */ | |
153 | #define LEX_FORMLINE 1 /* expecting a format line */ | |
154 | #define LEX_KNOWNEXT 0 /* next token known; just return it */ | |
155 | ||
79072805 | 156 | |
bbf60fe6 | 157 | #ifdef DEBUGGING |
27da23d5 | 158 | static const char* const lex_state_names[] = { |
bbf60fe6 DM |
159 | "KNOWNEXT", |
160 | "FORMLINE", | |
161 | "INTERPCONST", | |
162 | "INTERPCONCAT", | |
163 | "INTERPENDMAYBE", | |
164 | "INTERPEND", | |
165 | "INTERPSTART", | |
166 | "INTERPPUSH", | |
167 | "INTERPCASEMOD", | |
168 | "INTERPNORMAL", | |
169 | "NORMAL" | |
170 | }; | |
171 | #endif | |
172 | ||
79072805 LW |
173 | #ifdef ff_next |
174 | #undef ff_next | |
d48672a2 LW |
175 | #endif |
176 | ||
79072805 | 177 | #include "keywords.h" |
fe14fcc3 | 178 | |
ffb4593c NT |
179 | /* CLINE is a macro that ensures PL_copline has a sane value */ |
180 | ||
ae986130 LW |
181 | #ifdef CLINE |
182 | #undef CLINE | |
183 | #endif | |
57843af0 | 184 | #define CLINE (PL_copline = (CopLINE(PL_curcop) < PL_copline ? CopLINE(PL_curcop) : PL_copline)) |
3280af22 | 185 | |
5db06880 | 186 | #ifdef PERL_MAD |
29595ff2 NC |
187 | # define SKIPSPACE0(s) skipspace0(s) |
188 | # define SKIPSPACE1(s) skipspace1(s) | |
189 | # define SKIPSPACE2(s,tsv) skipspace2(s,&tsv) | |
190 | # define PEEKSPACE(s) skipspace2(s,0) | |
191 | #else | |
192 | # define SKIPSPACE0(s) skipspace(s) | |
193 | # define SKIPSPACE1(s) skipspace(s) | |
194 | # define SKIPSPACE2(s,tsv) skipspace(s) | |
195 | # define PEEKSPACE(s) skipspace(s) | |
196 | #endif | |
197 | ||
ffb4593c NT |
198 | /* |
199 | * Convenience functions to return different tokens and prime the | |
9cbb5ea2 | 200 | * lexer for the next token. They all take an argument. |
ffb4593c NT |
201 | * |
202 | * TOKEN : generic token (used for '(', DOLSHARP, etc) | |
203 | * OPERATOR : generic operator | |
204 | * AOPERATOR : assignment operator | |
205 | * PREBLOCK : beginning the block after an if, while, foreach, ... | |
206 | * PRETERMBLOCK : beginning a non-code-defining {} block (eg, hash ref) | |
207 | * PREREF : *EXPR where EXPR is not a simple identifier | |
208 | * TERM : expression term | |
209 | * LOOPX : loop exiting command (goto, last, dump, etc) | |
210 | * FTST : file test operator | |
211 | * FUN0 : zero-argument function | |
2d2e263d | 212 | * FUN1 : not used, except for not, which isn't a UNIOP |
ffb4593c NT |
213 | * BOop : bitwise or or xor |
214 | * BAop : bitwise and | |
215 | * SHop : shift operator | |
216 | * PWop : power operator | |
9cbb5ea2 | 217 | * PMop : pattern-matching operator |
ffb4593c NT |
218 | * Aop : addition-level operator |
219 | * Mop : multiplication-level operator | |
220 | * Eop : equality-testing operator | |
e5edeb50 | 221 | * Rop : relational operator <= != gt |
ffb4593c NT |
222 | * |
223 | * Also see LOP and lop() below. | |
224 | */ | |
225 | ||
998054bd | 226 | #ifdef DEBUGGING /* Serve -DT. */ |
f5bd084c | 227 | # define REPORT(retval) tokereport((I32)retval) |
998054bd | 228 | #else |
bbf60fe6 | 229 | # define REPORT(retval) (retval) |
998054bd SC |
230 | #endif |
231 | ||
bbf60fe6 DM |
232 | #define TOKEN(retval) return ( PL_bufptr = s, REPORT(retval)) |
233 | #define OPERATOR(retval) return (PL_expect = XTERM, PL_bufptr = s, REPORT(retval)) | |
234 | #define AOPERATOR(retval) return ao((PL_expect = XTERM, PL_bufptr = s, REPORT(retval))) | |
235 | #define PREBLOCK(retval) return (PL_expect = XBLOCK,PL_bufptr = s, REPORT(retval)) | |
236 | #define PRETERMBLOCK(retval) return (PL_expect = XTERMBLOCK,PL_bufptr = s, REPORT(retval)) | |
237 | #define PREREF(retval) return (PL_expect = XREF,PL_bufptr = s, REPORT(retval)) | |
238 | #define TERM(retval) return (CLINE, PL_expect = XOPERATOR, PL_bufptr = s, REPORT(retval)) | |
239 | #define LOOPX(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)LOOPEX)) | |
240 | #define FTST(f) return (yylval.ival=f, PL_expect=XTERMORDORDOR, PL_bufptr=s, REPORT((int)UNIOP)) | |
241 | #define FUN0(f) return (yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC0)) | |
242 | #define FUN1(f) return (yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC1)) | |
243 | #define BOop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITOROP))) | |
244 | #define BAop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITANDOP))) | |
245 | #define SHop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)SHIFTOP))) | |
246 | #define PWop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)POWOP))) | |
247 | #define PMop(f) return(yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MATCHOP)) | |
248 | #define Aop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)ADDOP))) | |
249 | #define Mop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MULOP))) | |
250 | #define Eop(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)EQOP)) | |
251 | #define Rop(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)RELOP)) | |
2f3197b3 | 252 | |
a687059c LW |
253 | /* This bit of chicanery makes a unary function followed by |
254 | * a parenthesis into a function with one argument, highest precedence. | |
6f33ba73 RGS |
255 | * The UNIDOR macro is for unary functions that can be followed by the // |
256 | * operator (such as C<shift // 0>). | |
a687059c | 257 | */ |
376fcdbf AL |
258 | #define UNI2(f,x) { \ |
259 | yylval.ival = f; \ | |
260 | PL_expect = x; \ | |
261 | PL_bufptr = s; \ | |
262 | PL_last_uni = PL_oldbufptr; \ | |
263 | PL_last_lop_op = f; \ | |
264 | if (*s == '(') \ | |
265 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 266 | s = PEEKSPACE(s); \ |
376fcdbf AL |
267 | return REPORT( *s=='(' ? (int)FUNC1 : (int)UNIOP ); \ |
268 | } | |
6f33ba73 RGS |
269 | #define UNI(f) UNI2(f,XTERM) |
270 | #define UNIDOR(f) UNI2(f,XTERMORDORDOR) | |
a687059c | 271 | |
376fcdbf AL |
272 | #define UNIBRACK(f) { \ |
273 | yylval.ival = f; \ | |
274 | PL_bufptr = s; \ | |
275 | PL_last_uni = PL_oldbufptr; \ | |
276 | if (*s == '(') \ | |
277 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 278 | s = PEEKSPACE(s); \ |
376fcdbf AL |
279 | return REPORT( (*s == '(') ? (int)FUNC1 : (int)UNIOP ); \ |
280 | } | |
79072805 | 281 | |
9f68db38 | 282 | /* grandfather return to old style */ |
3280af22 | 283 | #define OLDLOP(f) return(yylval.ival=f,PL_expect = XTERM,PL_bufptr = s,(int)LSTOP) |
79072805 | 284 | |
8fa7f367 JH |
285 | #ifdef DEBUGGING |
286 | ||
bbf60fe6 DM |
287 | /* how to interpret the yylval associated with the token */ |
288 | enum token_type { | |
289 | TOKENTYPE_NONE, | |
290 | TOKENTYPE_IVAL, | |
291 | TOKENTYPE_OPNUM, /* yylval.ival contains an opcode number */ | |
292 | TOKENTYPE_PVAL, | |
293 | TOKENTYPE_OPVAL, | |
294 | TOKENTYPE_GVVAL | |
295 | }; | |
296 | ||
6d4a66ac NC |
297 | static struct debug_tokens { |
298 | const int token; | |
299 | enum token_type type; | |
300 | const char *name; | |
301 | } const debug_tokens[] = | |
9041c2e3 | 302 | { |
bbf60fe6 DM |
303 | { ADDOP, TOKENTYPE_OPNUM, "ADDOP" }, |
304 | { ANDAND, TOKENTYPE_NONE, "ANDAND" }, | |
305 | { ANDOP, TOKENTYPE_NONE, "ANDOP" }, | |
306 | { ANONSUB, TOKENTYPE_IVAL, "ANONSUB" }, | |
307 | { ARROW, TOKENTYPE_NONE, "ARROW" }, | |
308 | { ASSIGNOP, TOKENTYPE_OPNUM, "ASSIGNOP" }, | |
309 | { BITANDOP, TOKENTYPE_OPNUM, "BITANDOP" }, | |
310 | { BITOROP, TOKENTYPE_OPNUM, "BITOROP" }, | |
311 | { COLONATTR, TOKENTYPE_NONE, "COLONATTR" }, | |
312 | { CONTINUE, TOKENTYPE_NONE, "CONTINUE" }, | |
0d863452 | 313 | { DEFAULT, TOKENTYPE_NONE, "DEFAULT" }, |
bbf60fe6 DM |
314 | { DO, TOKENTYPE_NONE, "DO" }, |
315 | { DOLSHARP, TOKENTYPE_NONE, "DOLSHARP" }, | |
316 | { DORDOR, TOKENTYPE_NONE, "DORDOR" }, | |
317 | { DOROP, TOKENTYPE_OPNUM, "DOROP" }, | |
318 | { DOTDOT, TOKENTYPE_IVAL, "DOTDOT" }, | |
319 | { ELSE, TOKENTYPE_NONE, "ELSE" }, | |
320 | { ELSIF, TOKENTYPE_IVAL, "ELSIF" }, | |
321 | { EQOP, TOKENTYPE_OPNUM, "EQOP" }, | |
322 | { FOR, TOKENTYPE_IVAL, "FOR" }, | |
323 | { FORMAT, TOKENTYPE_NONE, "FORMAT" }, | |
324 | { FUNC, TOKENTYPE_OPNUM, "FUNC" }, | |
325 | { FUNC0, TOKENTYPE_OPNUM, "FUNC0" }, | |
326 | { FUNC0SUB, TOKENTYPE_OPVAL, "FUNC0SUB" }, | |
327 | { FUNC1, TOKENTYPE_OPNUM, "FUNC1" }, | |
328 | { FUNCMETH, TOKENTYPE_OPVAL, "FUNCMETH" }, | |
0d863452 | 329 | { GIVEN, TOKENTYPE_IVAL, "GIVEN" }, |
bbf60fe6 DM |
330 | { HASHBRACK, TOKENTYPE_NONE, "HASHBRACK" }, |
331 | { IF, TOKENTYPE_IVAL, "IF" }, | |
332 | { LABEL, TOKENTYPE_PVAL, "LABEL" }, | |
333 | { LOCAL, TOKENTYPE_IVAL, "LOCAL" }, | |
334 | { LOOPEX, TOKENTYPE_OPNUM, "LOOPEX" }, | |
335 | { LSTOP, TOKENTYPE_OPNUM, "LSTOP" }, | |
336 | { LSTOPSUB, TOKENTYPE_OPVAL, "LSTOPSUB" }, | |
337 | { MATCHOP, TOKENTYPE_OPNUM, "MATCHOP" }, | |
338 | { METHOD, TOKENTYPE_OPVAL, "METHOD" }, | |
339 | { MULOP, TOKENTYPE_OPNUM, "MULOP" }, | |
340 | { MY, TOKENTYPE_IVAL, "MY" }, | |
341 | { MYSUB, TOKENTYPE_NONE, "MYSUB" }, | |
342 | { NOAMP, TOKENTYPE_NONE, "NOAMP" }, | |
343 | { NOTOP, TOKENTYPE_NONE, "NOTOP" }, | |
344 | { OROP, TOKENTYPE_IVAL, "OROP" }, | |
345 | { OROR, TOKENTYPE_NONE, "OROR" }, | |
346 | { PACKAGE, TOKENTYPE_NONE, "PACKAGE" }, | |
347 | { PMFUNC, TOKENTYPE_OPVAL, "PMFUNC" }, | |
348 | { POSTDEC, TOKENTYPE_NONE, "POSTDEC" }, | |
349 | { POSTINC, TOKENTYPE_NONE, "POSTINC" }, | |
350 | { POWOP, TOKENTYPE_OPNUM, "POWOP" }, | |
351 | { PREDEC, TOKENTYPE_NONE, "PREDEC" }, | |
352 | { PREINC, TOKENTYPE_NONE, "PREINC" }, | |
353 | { PRIVATEREF, TOKENTYPE_OPVAL, "PRIVATEREF" }, | |
354 | { REFGEN, TOKENTYPE_NONE, "REFGEN" }, | |
355 | { RELOP, TOKENTYPE_OPNUM, "RELOP" }, | |
356 | { SHIFTOP, TOKENTYPE_OPNUM, "SHIFTOP" }, | |
357 | { SUB, TOKENTYPE_NONE, "SUB" }, | |
358 | { THING, TOKENTYPE_OPVAL, "THING" }, | |
359 | { UMINUS, TOKENTYPE_NONE, "UMINUS" }, | |
360 | { UNIOP, TOKENTYPE_OPNUM, "UNIOP" }, | |
361 | { UNIOPSUB, TOKENTYPE_OPVAL, "UNIOPSUB" }, | |
362 | { UNLESS, TOKENTYPE_IVAL, "UNLESS" }, | |
363 | { UNTIL, TOKENTYPE_IVAL, "UNTIL" }, | |
364 | { USE, TOKENTYPE_IVAL, "USE" }, | |
0d863452 | 365 | { WHEN, TOKENTYPE_IVAL, "WHEN" }, |
bbf60fe6 DM |
366 | { WHILE, TOKENTYPE_IVAL, "WHILE" }, |
367 | { WORD, TOKENTYPE_OPVAL, "WORD" }, | |
c35e046a | 368 | { 0, TOKENTYPE_NONE, NULL } |
bbf60fe6 DM |
369 | }; |
370 | ||
371 | /* dump the returned token in rv, plus any optional arg in yylval */ | |
998054bd | 372 | |
bbf60fe6 | 373 | STATIC int |
f5bd084c | 374 | S_tokereport(pTHX_ I32 rv) |
bbf60fe6 | 375 | { |
97aff369 | 376 | dVAR; |
bbf60fe6 | 377 | if (DEBUG_T_TEST) { |
bd61b366 | 378 | const char *name = NULL; |
bbf60fe6 | 379 | enum token_type type = TOKENTYPE_NONE; |
f54cb97a | 380 | const struct debug_tokens *p; |
396482e1 | 381 | SV* const report = newSVpvs("<== "); |
bbf60fe6 | 382 | |
f54cb97a | 383 | for (p = debug_tokens; p->token; p++) { |
bbf60fe6 DM |
384 | if (p->token == (int)rv) { |
385 | name = p->name; | |
386 | type = p->type; | |
387 | break; | |
388 | } | |
389 | } | |
390 | if (name) | |
54667de8 | 391 | Perl_sv_catpv(aTHX_ report, name); |
bbf60fe6 DM |
392 | else if ((char)rv > ' ' && (char)rv < '~') |
393 | Perl_sv_catpvf(aTHX_ report, "'%c'", (char)rv); | |
394 | else if (!rv) | |
396482e1 | 395 | sv_catpvs(report, "EOF"); |
bbf60fe6 DM |
396 | else |
397 | Perl_sv_catpvf(aTHX_ report, "?? %"IVdf, (IV)rv); | |
398 | switch (type) { | |
399 | case TOKENTYPE_NONE: | |
400 | case TOKENTYPE_GVVAL: /* doesn't appear to be used */ | |
401 | break; | |
402 | case TOKENTYPE_IVAL: | |
e4584336 | 403 | Perl_sv_catpvf(aTHX_ report, "(ival=%"IVdf")", (IV)yylval.ival); |
bbf60fe6 DM |
404 | break; |
405 | case TOKENTYPE_OPNUM: | |
406 | Perl_sv_catpvf(aTHX_ report, "(ival=op_%s)", | |
407 | PL_op_name[yylval.ival]); | |
408 | break; | |
409 | case TOKENTYPE_PVAL: | |
410 | Perl_sv_catpvf(aTHX_ report, "(pval=\"%s\")", yylval.pval); | |
411 | break; | |
412 | case TOKENTYPE_OPVAL: | |
b6007c36 | 413 | if (yylval.opval) { |
401441c0 | 414 | Perl_sv_catpvf(aTHX_ report, "(opval=op_%s)", |
bbf60fe6 | 415 | PL_op_name[yylval.opval->op_type]); |
b6007c36 DM |
416 | if (yylval.opval->op_type == OP_CONST) { |
417 | Perl_sv_catpvf(aTHX_ report, " %s", | |
418 | SvPEEK(cSVOPx_sv(yylval.opval))); | |
419 | } | |
420 | ||
421 | } | |
401441c0 | 422 | else |
396482e1 | 423 | sv_catpvs(report, "(opval=null)"); |
bbf60fe6 DM |
424 | break; |
425 | } | |
b6007c36 | 426 | PerlIO_printf(Perl_debug_log, "### %s\n\n", SvPV_nolen_const(report)); |
bbf60fe6 DM |
427 | }; |
428 | return (int)rv; | |
998054bd SC |
429 | } |
430 | ||
b6007c36 DM |
431 | |
432 | /* print the buffer with suitable escapes */ | |
433 | ||
434 | STATIC void | |
435 | S_printbuf(pTHX_ const char* fmt, const char* s) | |
436 | { | |
396482e1 | 437 | SV* const tmp = newSVpvs(""); |
b6007c36 DM |
438 | PerlIO_printf(Perl_debug_log, fmt, pv_display(tmp, s, strlen(s), 0, 60)); |
439 | SvREFCNT_dec(tmp); | |
440 | } | |
441 | ||
8fa7f367 JH |
442 | #endif |
443 | ||
ffb4593c NT |
444 | /* |
445 | * S_ao | |
446 | * | |
c963b151 BD |
447 | * This subroutine detects &&=, ||=, and //= and turns an ANDAND, OROR or DORDOR |
448 | * into an OP_ANDASSIGN, OP_ORASSIGN, or OP_DORASSIGN | |
ffb4593c NT |
449 | */ |
450 | ||
76e3520e | 451 | STATIC int |
cea2e8a9 | 452 | S_ao(pTHX_ int toketype) |
a0d0e21e | 453 | { |
97aff369 | 454 | dVAR; |
3280af22 NIS |
455 | if (*PL_bufptr == '=') { |
456 | PL_bufptr++; | |
a0d0e21e LW |
457 | if (toketype == ANDAND) |
458 | yylval.ival = OP_ANDASSIGN; | |
459 | else if (toketype == OROR) | |
460 | yylval.ival = OP_ORASSIGN; | |
c963b151 BD |
461 | else if (toketype == DORDOR) |
462 | yylval.ival = OP_DORASSIGN; | |
a0d0e21e LW |
463 | toketype = ASSIGNOP; |
464 | } | |
465 | return toketype; | |
466 | } | |
467 | ||
ffb4593c NT |
468 | /* |
469 | * S_no_op | |
470 | * When Perl expects an operator and finds something else, no_op | |
471 | * prints the warning. It always prints "<something> found where | |
472 | * operator expected. It prints "Missing semicolon on previous line?" | |
473 | * if the surprise occurs at the start of the line. "do you need to | |
474 | * predeclare ..." is printed out for code like "sub bar; foo bar $x" | |
475 | * where the compiler doesn't know if foo is a method call or a function. | |
476 | * It prints "Missing operator before end of line" if there's nothing | |
477 | * after the missing operator, or "... before <...>" if there is something | |
478 | * after the missing operator. | |
479 | */ | |
480 | ||
76e3520e | 481 | STATIC void |
bfed75c6 | 482 | S_no_op(pTHX_ const char *what, char *s) |
463ee0b2 | 483 | { |
97aff369 | 484 | dVAR; |
9d4ba2ae AL |
485 | char * const oldbp = PL_bufptr; |
486 | const bool is_first = (PL_oldbufptr == PL_linestart); | |
68dc0745 | 487 | |
1189a94a GS |
488 | if (!s) |
489 | s = oldbp; | |
07c798fb | 490 | else |
1189a94a | 491 | PL_bufptr = s; |
cea2e8a9 | 492 | yywarn(Perl_form(aTHX_ "%s found where operator expected", what)); |
56da5a46 RGS |
493 | if (ckWARN_d(WARN_SYNTAX)) { |
494 | if (is_first) | |
495 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
496 | "\t(Missing semicolon on previous line?)\n"); | |
497 | else if (PL_oldoldbufptr && isIDFIRST_lazy_if(PL_oldoldbufptr,UTF)) { | |
f54cb97a | 498 | const char *t; |
c35e046a AL |
499 | for (t = PL_oldoldbufptr; (isALNUM_lazy_if(t,UTF) || *t == ':'); t++) |
500 | NOOP; | |
56da5a46 RGS |
501 | if (t < PL_bufptr && isSPACE(*t)) |
502 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
503 | "\t(Do you need to predeclare %.*s?)\n", | |
551405c4 | 504 | (int)(t - PL_oldoldbufptr), PL_oldoldbufptr); |
56da5a46 RGS |
505 | } |
506 | else { | |
507 | assert(s >= oldbp); | |
508 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
551405c4 | 509 | "\t(Missing operator before %.*s?)\n", (int)(s - oldbp), oldbp); |
56da5a46 | 510 | } |
07c798fb | 511 | } |
3280af22 | 512 | PL_bufptr = oldbp; |
8990e307 LW |
513 | } |
514 | ||
ffb4593c NT |
515 | /* |
516 | * S_missingterm | |
517 | * Complain about missing quote/regexp/heredoc terminator. | |
d4c19fe8 | 518 | * If it's called with NULL then it cauterizes the line buffer. |
ffb4593c NT |
519 | * If we're in a delimited string and the delimiter is a control |
520 | * character, it's reformatted into a two-char sequence like ^C. | |
521 | * This is fatal. | |
522 | */ | |
523 | ||
76e3520e | 524 | STATIC void |
cea2e8a9 | 525 | S_missingterm(pTHX_ char *s) |
8990e307 | 526 | { |
97aff369 | 527 | dVAR; |
8990e307 LW |
528 | char tmpbuf[3]; |
529 | char q; | |
530 | if (s) { | |
9d4ba2ae | 531 | char * const nl = strrchr(s,'\n'); |
d2719217 | 532 | if (nl) |
8990e307 LW |
533 | *nl = '\0'; |
534 | } | |
9d116dd7 JH |
535 | else if ( |
536 | #ifdef EBCDIC | |
537 | iscntrl(PL_multi_close) | |
538 | #else | |
539 | PL_multi_close < 32 || PL_multi_close == 127 | |
540 | #endif | |
541 | ) { | |
8990e307 | 542 | *tmpbuf = '^'; |
585ec06d | 543 | tmpbuf[1] = (char)toCTRL(PL_multi_close); |
8990e307 LW |
544 | tmpbuf[2] = '\0'; |
545 | s = tmpbuf; | |
546 | } | |
547 | else { | |
eb160463 | 548 | *tmpbuf = (char)PL_multi_close; |
8990e307 LW |
549 | tmpbuf[1] = '\0'; |
550 | s = tmpbuf; | |
551 | } | |
552 | q = strchr(s,'"') ? '\'' : '"'; | |
cea2e8a9 | 553 | Perl_croak(aTHX_ "Can't find string terminator %c%s%c anywhere before EOF",q,s,q); |
463ee0b2 | 554 | } |
79072805 | 555 | |
ef89dcc3 | 556 | #define FEATURE_IS_ENABLED(name) \ |
0d863452 | 557 | ((0 != (PL_hints & HINT_LOCALIZE_HH)) \ |
89529cee | 558 | && S_feature_is_enabled(aTHX_ STR_WITH_LEN(name))) |
0d863452 RH |
559 | /* |
560 | * S_feature_is_enabled | |
561 | * Check whether the named feature is enabled. | |
562 | */ | |
563 | STATIC bool | |
d4c19fe8 | 564 | S_feature_is_enabled(pTHX_ const char *name, STRLEN namelen) |
0d863452 | 565 | { |
97aff369 | 566 | dVAR; |
0d863452 | 567 | HV * const hinthv = GvHV(PL_hintgv); |
7b9ef140 | 568 | char he_name[32] = "feature_"; |
6fca0082 | 569 | (void) my_strlcpy(&he_name[8], name, 24); |
d4c19fe8 | 570 | |
7b9ef140 | 571 | return (hinthv && hv_exists(hinthv, he_name, 8 + namelen)); |
0d863452 RH |
572 | } |
573 | ||
ffb4593c NT |
574 | /* |
575 | * Perl_deprecate | |
ffb4593c NT |
576 | */ |
577 | ||
79072805 | 578 | void |
bfed75c6 | 579 | Perl_deprecate(pTHX_ const char *s) |
a0d0e21e | 580 | { |
599cee73 | 581 | if (ckWARN(WARN_DEPRECATED)) |
9014280d | 582 | Perl_warner(aTHX_ packWARN(WARN_DEPRECATED), "Use of %s is deprecated", s); |
a0d0e21e LW |
583 | } |
584 | ||
12bcd1a6 | 585 | void |
bfed75c6 | 586 | Perl_deprecate_old(pTHX_ const char *s) |
12bcd1a6 PM |
587 | { |
588 | /* This function should NOT be called for any new deprecated warnings */ | |
589 | /* Use Perl_deprecate instead */ | |
590 | /* */ | |
591 | /* It is here to maintain backward compatibility with the pre-5.8 */ | |
592 | /* warnings category hierarchy. The "deprecated" category used to */ | |
593 | /* live under the "syntax" category. It is now a top-level category */ | |
594 | /* in its own right. */ | |
595 | ||
596 | if (ckWARN2(WARN_DEPRECATED, WARN_SYNTAX)) | |
bfed75c6 | 597 | Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX), |
12bcd1a6 PM |
598 | "Use of %s is deprecated", s); |
599 | } | |
600 | ||
ffb4593c | 601 | /* |
9cbb5ea2 GS |
602 | * experimental text filters for win32 carriage-returns, utf16-to-utf8 and |
603 | * utf16-to-utf8-reversed. | |
ffb4593c NT |
604 | */ |
605 | ||
c39cd008 GS |
606 | #ifdef PERL_CR_FILTER |
607 | static void | |
608 | strip_return(SV *sv) | |
609 | { | |
95a20fc0 | 610 | register const char *s = SvPVX_const(sv); |
9d4ba2ae | 611 | register const char * const e = s + SvCUR(sv); |
c39cd008 GS |
612 | /* outer loop optimized to do nothing if there are no CR-LFs */ |
613 | while (s < e) { | |
614 | if (*s++ == '\r' && *s == '\n') { | |
615 | /* hit a CR-LF, need to copy the rest */ | |
616 | register char *d = s - 1; | |
617 | *d++ = *s++; | |
618 | while (s < e) { | |
619 | if (*s == '\r' && s[1] == '\n') | |
620 | s++; | |
621 | *d++ = *s++; | |
622 | } | |
623 | SvCUR(sv) -= s - d; | |
624 | return; | |
625 | } | |
626 | } | |
627 | } | |
a868473f | 628 | |
76e3520e | 629 | STATIC I32 |
c39cd008 | 630 | S_cr_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
a868473f | 631 | { |
f54cb97a | 632 | const I32 count = FILTER_READ(idx+1, sv, maxlen); |
c39cd008 GS |
633 | if (count > 0 && !maxlen) |
634 | strip_return(sv); | |
635 | return count; | |
a868473f NIS |
636 | } |
637 | #endif | |
638 | ||
199e78b7 DM |
639 | |
640 | ||
ffb4593c NT |
641 | /* |
642 | * Perl_lex_start | |
5486870f | 643 | * |
e3abe207 | 644 | * Create a parser object and initialise its parser and lexer fields |
5486870f DM |
645 | * |
646 | * rsfp is the opened file handle to read from (if any), | |
647 | * | |
648 | * line holds any initial content already read from the file (or in | |
649 | * the case of no file, such as an eval, the whole contents); | |
650 | * | |
651 | * new_filter indicates that this is a new file and it shouldn't inherit | |
652 | * the filters from the current parser (ie require). | |
ffb4593c NT |
653 | */ |
654 | ||
a0d0e21e | 655 | void |
5486870f | 656 | Perl_lex_start(pTHX_ SV *line, PerlIO *rsfp, bool new_filter) |
79072805 | 657 | { |
97aff369 | 658 | dVAR; |
6ef55633 | 659 | const char *s = NULL; |
8990e307 | 660 | STRLEN len; |
5486870f | 661 | yy_parser *parser, *oparser; |
acdf0a21 DM |
662 | |
663 | /* create and initialise a parser */ | |
664 | ||
199e78b7 | 665 | Newxz(parser, 1, yy_parser); |
5486870f | 666 | parser->old_parser = oparser = PL_parser; |
acdf0a21 DM |
667 | PL_parser = parser; |
668 | ||
669 | Newx(parser->stack, YYINITDEPTH, yy_stack_frame); | |
670 | parser->ps = parser->stack; | |
671 | parser->stack_size = YYINITDEPTH; | |
672 | ||
673 | parser->stack->state = 0; | |
674 | parser->yyerrstatus = 0; | |
675 | parser->yychar = YYEMPTY; /* Cause a token to be read. */ | |
676 | ||
e3abe207 DM |
677 | /* on scope exit, free this parser and restore any outer one */ |
678 | SAVEPARSER(parser); | |
7c4baf47 | 679 | parser->saved_curcop = PL_curcop; |
e3abe207 | 680 | |
acdf0a21 | 681 | /* initialise lexer state */ |
8990e307 | 682 | |
fb205e7a DM |
683 | #ifdef PERL_MAD |
684 | parser->curforce = -1; | |
685 | #else | |
686 | parser->nexttoke = 0; | |
687 | #endif | |
c2598295 | 688 | parser->copline = NOLINE; |
5afb0a62 | 689 | parser->lex_state = LEX_NORMAL; |
c2598295 | 690 | parser->expect = XSTATE; |
2f9285f8 | 691 | parser->rsfp = rsfp; |
56b27c9a | 692 | parser->rsfp_filters = (new_filter || !oparser) ? newAV() |
5486870f | 693 | : (AV*)SvREFCNT_inc(oparser->rsfp_filters); |
2f9285f8 | 694 | |
199e78b7 DM |
695 | Newx(parser->lex_brackstack, 120, char); |
696 | Newx(parser->lex_casestack, 12, char); | |
697 | *parser->lex_casestack = '\0'; | |
02b34bbe | 698 | |
10efb74f NC |
699 | if (line) { |
700 | s = SvPV_const(line, len); | |
701 | } else { | |
702 | len = 0; | |
703 | } | |
bdc0bf6f | 704 | |
10efb74f | 705 | if (!len) { |
bdc0bf6f | 706 | parser->linestr = newSVpvs("\n;"); |
10efb74f | 707 | } else if (SvREADONLY(line) || s[len-1] != ';') { |
bdc0bf6f | 708 | parser->linestr = newSVsv(line); |
10efb74f | 709 | if (s[len-1] != ';') |
bdc0bf6f | 710 | sv_catpvs(parser->linestr, "\n;"); |
6c5ce11d NC |
711 | } else { |
712 | SvTEMP_off(line); | |
713 | SvREFCNT_inc_simple_void_NN(line); | |
bdc0bf6f | 714 | parser->linestr = line; |
8990e307 | 715 | } |
f06b5848 DM |
716 | parser->oldoldbufptr = |
717 | parser->oldbufptr = | |
718 | parser->bufptr = | |
719 | parser->linestart = SvPVX(parser->linestr); | |
720 | parser->bufend = parser->bufptr + SvCUR(parser->linestr); | |
721 | parser->last_lop = parser->last_uni = NULL; | |
79072805 | 722 | } |
a687059c | 723 | |
e3abe207 DM |
724 | |
725 | /* delete a parser object */ | |
726 | ||
727 | void | |
728 | Perl_parser_free(pTHX_ const yy_parser *parser) | |
729 | { | |
7c4baf47 | 730 | PL_curcop = parser->saved_curcop; |
bdc0bf6f DM |
731 | SvREFCNT_dec(parser->linestr); |
732 | ||
2f9285f8 DM |
733 | if (parser->rsfp == PerlIO_stdin()) |
734 | PerlIO_clearerr(parser->rsfp); | |
735 | else if (parser->rsfp && parser->old_parser | |
736 | && parser->rsfp != parser->old_parser->rsfp) | |
737 | PerlIO_close(parser->rsfp); | |
5486870f | 738 | SvREFCNT_dec(parser->rsfp_filters); |
2f9285f8 | 739 | |
e3abe207 DM |
740 | Safefree(parser->stack); |
741 | Safefree(parser->lex_brackstack); | |
742 | Safefree(parser->lex_casestack); | |
743 | PL_parser = parser->old_parser; | |
744 | Safefree(parser); | |
745 | } | |
746 | ||
747 | ||
ffb4593c NT |
748 | /* |
749 | * Perl_lex_end | |
9cbb5ea2 GS |
750 | * Finalizer for lexing operations. Must be called when the parser is |
751 | * done with the lexer. | |
ffb4593c NT |
752 | */ |
753 | ||
463ee0b2 | 754 | void |
864dbfa3 | 755 | Perl_lex_end(pTHX) |
463ee0b2 | 756 | { |
97aff369 | 757 | dVAR; |
3280af22 | 758 | PL_doextract = FALSE; |
463ee0b2 LW |
759 | } |
760 | ||
ffb4593c NT |
761 | /* |
762 | * S_incline | |
763 | * This subroutine has nothing to do with tilting, whether at windmills | |
764 | * or pinball tables. Its name is short for "increment line". It | |
57843af0 | 765 | * increments the current line number in CopLINE(PL_curcop) and checks |
ffb4593c | 766 | * to see whether the line starts with a comment of the form |
9cbb5ea2 GS |
767 | * # line 500 "foo.pm" |
768 | * If so, it sets the current line number and file to the values in the comment. | |
ffb4593c NT |
769 | */ |
770 | ||
76e3520e | 771 | STATIC void |
d9095cec | 772 | S_incline(pTHX_ const char *s) |
463ee0b2 | 773 | { |
97aff369 | 774 | dVAR; |
d9095cec NC |
775 | const char *t; |
776 | const char *n; | |
777 | const char *e; | |
463ee0b2 | 778 | |
57843af0 | 779 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
780 | if (*s++ != '#') |
781 | return; | |
d4c19fe8 AL |
782 | while (SPACE_OR_TAB(*s)) |
783 | s++; | |
73659bf1 GS |
784 | if (strnEQ(s, "line", 4)) |
785 | s += 4; | |
786 | else | |
787 | return; | |
084592ab | 788 | if (SPACE_OR_TAB(*s)) |
73659bf1 | 789 | s++; |
4e553d73 | 790 | else |
73659bf1 | 791 | return; |
d4c19fe8 AL |
792 | while (SPACE_OR_TAB(*s)) |
793 | s++; | |
463ee0b2 LW |
794 | if (!isDIGIT(*s)) |
795 | return; | |
d4c19fe8 | 796 | |
463ee0b2 LW |
797 | n = s; |
798 | while (isDIGIT(*s)) | |
799 | s++; | |
bf4acbe4 | 800 | while (SPACE_OR_TAB(*s)) |
463ee0b2 | 801 | s++; |
73659bf1 | 802 | if (*s == '"' && (t = strchr(s+1, '"'))) { |
463ee0b2 | 803 | s++; |
73659bf1 GS |
804 | e = t + 1; |
805 | } | |
463ee0b2 | 806 | else { |
c35e046a AL |
807 | t = s; |
808 | while (!isSPACE(*t)) | |
809 | t++; | |
73659bf1 | 810 | e = t; |
463ee0b2 | 811 | } |
bf4acbe4 | 812 | while (SPACE_OR_TAB(*e) || *e == '\r' || *e == '\f') |
73659bf1 GS |
813 | e++; |
814 | if (*e != '\n' && *e != '\0') | |
815 | return; /* false alarm */ | |
816 | ||
f4dd75d9 | 817 | if (t - s > 0) { |
d9095cec | 818 | const STRLEN len = t - s; |
8a5ee598 | 819 | #ifndef USE_ITHREADS |
c4420975 | 820 | const char * const cf = CopFILE(PL_curcop); |
42d9b98d NC |
821 | STRLEN tmplen = cf ? strlen(cf) : 0; |
822 | if (tmplen > 7 && strnEQ(cf, "(eval ", 6)) { | |
e66cf94c RGS |
823 | /* must copy *{"::_<(eval N)[oldfilename:L]"} |
824 | * to *{"::_<newfilename"} */ | |
44867030 NC |
825 | /* However, the long form of evals is only turned on by the |
826 | debugger - usually they're "(eval %lu)" */ | |
827 | char smallbuf[128]; | |
828 | char *tmpbuf; | |
829 | GV **gvp; | |
d9095cec | 830 | STRLEN tmplen2 = len; |
798b63bc | 831 | if (tmplen + 2 <= sizeof smallbuf) |
e66cf94c RGS |
832 | tmpbuf = smallbuf; |
833 | else | |
2ae0db35 | 834 | Newx(tmpbuf, tmplen + 2, char); |
44867030 NC |
835 | tmpbuf[0] = '_'; |
836 | tmpbuf[1] = '<'; | |
2ae0db35 | 837 | memcpy(tmpbuf + 2, cf, tmplen); |
44867030 | 838 | tmplen += 2; |
8a5ee598 RGS |
839 | gvp = (GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, FALSE); |
840 | if (gvp) { | |
44867030 NC |
841 | char *tmpbuf2; |
842 | GV *gv2; | |
843 | ||
844 | if (tmplen2 + 2 <= sizeof smallbuf) | |
845 | tmpbuf2 = smallbuf; | |
846 | else | |
847 | Newx(tmpbuf2, tmplen2 + 2, char); | |
848 | ||
849 | if (tmpbuf2 != smallbuf || tmpbuf != smallbuf) { | |
850 | /* Either they malloc'd it, or we malloc'd it, | |
851 | so no prefix is present in ours. */ | |
852 | tmpbuf2[0] = '_'; | |
853 | tmpbuf2[1] = '<'; | |
854 | } | |
855 | ||
856 | memcpy(tmpbuf2 + 2, s, tmplen2); | |
857 | tmplen2 += 2; | |
858 | ||
8a5ee598 | 859 | gv2 = *(GV**)hv_fetch(PL_defstash, tmpbuf2, tmplen2, TRUE); |
e5527e4b | 860 | if (!isGV(gv2)) { |
8a5ee598 | 861 | gv_init(gv2, PL_defstash, tmpbuf2, tmplen2, FALSE); |
e5527e4b RGS |
862 | /* adjust ${"::_<newfilename"} to store the new file name */ |
863 | GvSV(gv2) = newSVpvn(tmpbuf2 + 2, tmplen2 - 2); | |
864 | GvHV(gv2) = (HV*)SvREFCNT_inc(GvHV(*gvp)); | |
865 | GvAV(gv2) = (AV*)SvREFCNT_inc(GvAV(*gvp)); | |
866 | } | |
44867030 NC |
867 | |
868 | if (tmpbuf2 != smallbuf) Safefree(tmpbuf2); | |
8a5ee598 | 869 | } |
e66cf94c | 870 | if (tmpbuf != smallbuf) Safefree(tmpbuf); |
e66cf94c | 871 | } |
8a5ee598 | 872 | #endif |
05ec9bb3 | 873 | CopFILE_free(PL_curcop); |
d9095cec | 874 | CopFILE_setn(PL_curcop, s, len); |
f4dd75d9 | 875 | } |
57843af0 | 876 | CopLINE_set(PL_curcop, atoi(n)-1); |
463ee0b2 LW |
877 | } |
878 | ||
29595ff2 | 879 | #ifdef PERL_MAD |
cd81e915 | 880 | /* skip space before PL_thistoken */ |
29595ff2 NC |
881 | |
882 | STATIC char * | |
883 | S_skipspace0(pTHX_ register char *s) | |
884 | { | |
885 | s = skipspace(s); | |
886 | if (!PL_madskills) | |
887 | return s; | |
cd81e915 NC |
888 | if (PL_skipwhite) { |
889 | if (!PL_thiswhite) | |
6b29d1f5 | 890 | PL_thiswhite = newSVpvs(""); |
cd81e915 NC |
891 | sv_catsv(PL_thiswhite, PL_skipwhite); |
892 | sv_free(PL_skipwhite); | |
893 | PL_skipwhite = 0; | |
894 | } | |
895 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
29595ff2 NC |
896 | return s; |
897 | } | |
898 | ||
cd81e915 | 899 | /* skip space after PL_thistoken */ |
29595ff2 NC |
900 | |
901 | STATIC char * | |
902 | S_skipspace1(pTHX_ register char *s) | |
903 | { | |
d4c19fe8 | 904 | const char *start = s; |
29595ff2 NC |
905 | I32 startoff = start - SvPVX(PL_linestr); |
906 | ||
907 | s = skipspace(s); | |
908 | if (!PL_madskills) | |
909 | return s; | |
910 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 911 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 912 | const char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
913 | PL_thistoken = newSVpvn(tstart, start - tstart); |
914 | } | |
915 | PL_realtokenstart = -1; | |
916 | if (PL_skipwhite) { | |
917 | if (!PL_nextwhite) | |
6b29d1f5 | 918 | PL_nextwhite = newSVpvs(""); |
cd81e915 NC |
919 | sv_catsv(PL_nextwhite, PL_skipwhite); |
920 | sv_free(PL_skipwhite); | |
921 | PL_skipwhite = 0; | |
29595ff2 NC |
922 | } |
923 | return s; | |
924 | } | |
925 | ||
926 | STATIC char * | |
927 | S_skipspace2(pTHX_ register char *s, SV **svp) | |
928 | { | |
c35e046a AL |
929 | char *start; |
930 | const I32 bufptroff = PL_bufptr - SvPVX(PL_linestr); | |
931 | const I32 startoff = s - SvPVX(PL_linestr); | |
932 | ||
29595ff2 NC |
933 | s = skipspace(s); |
934 | PL_bufptr = SvPVX(PL_linestr) + bufptroff; | |
935 | if (!PL_madskills || !svp) | |
936 | return s; | |
937 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 938 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 939 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
940 | PL_thistoken = newSVpvn(tstart, start - tstart); |
941 | PL_realtokenstart = -1; | |
29595ff2 | 942 | } |
cd81e915 | 943 | if (PL_skipwhite) { |
29595ff2 | 944 | if (!*svp) |
6b29d1f5 | 945 | *svp = newSVpvs(""); |
cd81e915 NC |
946 | sv_setsv(*svp, PL_skipwhite); |
947 | sv_free(PL_skipwhite); | |
948 | PL_skipwhite = 0; | |
29595ff2 NC |
949 | } |
950 | ||
951 | return s; | |
952 | } | |
953 | #endif | |
954 | ||
80a702cd | 955 | STATIC void |
5fa550fb | 956 | S_update_debugger_info(pTHX_ SV *orig_sv, const char *buf, STRLEN len) |
80a702cd RGS |
957 | { |
958 | AV *av = CopFILEAVx(PL_curcop); | |
959 | if (av) { | |
b9f83d2f | 960 | SV * const sv = newSV_type(SVt_PVMG); |
5fa550fb NC |
961 | if (orig_sv) |
962 | sv_setsv(sv, orig_sv); | |
963 | else | |
964 | sv_setpvn(sv, buf, len); | |
80a702cd RGS |
965 | (void)SvIOK_on(sv); |
966 | SvIV_set(sv, 0); | |
967 | av_store(av, (I32)CopLINE(PL_curcop), sv); | |
968 | } | |
969 | } | |
970 | ||
ffb4593c NT |
971 | /* |
972 | * S_skipspace | |
973 | * Called to gobble the appropriate amount and type of whitespace. | |
974 | * Skips comments as well. | |
975 | */ | |
976 | ||
76e3520e | 977 | STATIC char * |
cea2e8a9 | 978 | S_skipspace(pTHX_ register char *s) |
a687059c | 979 | { |
97aff369 | 980 | dVAR; |
5db06880 NC |
981 | #ifdef PERL_MAD |
982 | int curoff; | |
983 | int startoff = s - SvPVX(PL_linestr); | |
984 | ||
cd81e915 NC |
985 | if (PL_skipwhite) { |
986 | sv_free(PL_skipwhite); | |
987 | PL_skipwhite = 0; | |
5db06880 NC |
988 | } |
989 | #endif | |
990 | ||
3280af22 | 991 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
bf4acbe4 | 992 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
463ee0b2 | 993 | s++; |
5db06880 NC |
994 | #ifdef PERL_MAD |
995 | goto done; | |
996 | #else | |
463ee0b2 | 997 | return s; |
5db06880 | 998 | #endif |
463ee0b2 LW |
999 | } |
1000 | for (;;) { | |
fd049845 | 1001 | STRLEN prevlen; |
09bef843 | 1002 | SSize_t oldprevlen, oldoldprevlen; |
9c5ffd7c | 1003 | SSize_t oldloplen = 0, oldunilen = 0; |
60e6418e GS |
1004 | while (s < PL_bufend && isSPACE(*s)) { |
1005 | if (*s++ == '\n' && PL_in_eval && !PL_rsfp) | |
1006 | incline(s); | |
1007 | } | |
ffb4593c NT |
1008 | |
1009 | /* comment */ | |
3280af22 NIS |
1010 | if (s < PL_bufend && *s == '#') { |
1011 | while (s < PL_bufend && *s != '\n') | |
463ee0b2 | 1012 | s++; |
60e6418e | 1013 | if (s < PL_bufend) { |
463ee0b2 | 1014 | s++; |
60e6418e GS |
1015 | if (PL_in_eval && !PL_rsfp) { |
1016 | incline(s); | |
1017 | continue; | |
1018 | } | |
1019 | } | |
463ee0b2 | 1020 | } |
ffb4593c NT |
1021 | |
1022 | /* only continue to recharge the buffer if we're at the end | |
1023 | * of the buffer, we're not reading from a source filter, and | |
1024 | * we're in normal lexing mode | |
1025 | */ | |
09bef843 SB |
1026 | if (s < PL_bufend || !PL_rsfp || PL_sublex_info.sub_inwhat || |
1027 | PL_lex_state == LEX_FORMLINE) | |
5db06880 NC |
1028 | #ifdef PERL_MAD |
1029 | goto done; | |
1030 | #else | |
463ee0b2 | 1031 | return s; |
5db06880 | 1032 | #endif |
ffb4593c NT |
1033 | |
1034 | /* try to recharge the buffer */ | |
5db06880 NC |
1035 | #ifdef PERL_MAD |
1036 | curoff = s - SvPVX(PL_linestr); | |
1037 | #endif | |
1038 | ||
9cbb5ea2 | 1039 | if ((s = filter_gets(PL_linestr, PL_rsfp, |
bd61b366 | 1040 | (prevlen = SvCUR(PL_linestr)))) == NULL) |
9cbb5ea2 | 1041 | { |
5db06880 NC |
1042 | #ifdef PERL_MAD |
1043 | if (PL_madskills && curoff != startoff) { | |
cd81e915 | 1044 | if (!PL_skipwhite) |
6b29d1f5 | 1045 | PL_skipwhite = newSVpvs(""); |
cd81e915 | 1046 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, |
5db06880 NC |
1047 | curoff - startoff); |
1048 | } | |
1049 | ||
1050 | /* mustn't throw out old stuff yet if madpropping */ | |
1051 | SvCUR(PL_linestr) = curoff; | |
1052 | s = SvPVX(PL_linestr) + curoff; | |
1053 | *s = 0; | |
1054 | if (curoff && s[-1] == '\n') | |
1055 | s[-1] = ' '; | |
1056 | #endif | |
1057 | ||
9cbb5ea2 | 1058 | /* end of file. Add on the -p or -n magic */ |
cd81e915 | 1059 | /* XXX these shouldn't really be added here, can't set PL_faketokens */ |
01a19ab0 | 1060 | if (PL_minus_p) { |
5db06880 | 1061 | #ifdef PERL_MAD |
6502358f | 1062 | sv_catpvs(PL_linestr, |
5db06880 NC |
1063 | ";}continue{print or die qq(-p destination: $!\\n);}"); |
1064 | #else | |
6502358f | 1065 | sv_setpvs(PL_linestr, |
01a19ab0 | 1066 | ";}continue{print or die qq(-p destination: $!\\n);}"); |
5db06880 | 1067 | #endif |
3280af22 | 1068 | PL_minus_n = PL_minus_p = 0; |
a0d0e21e | 1069 | } |
01a19ab0 | 1070 | else if (PL_minus_n) { |
5db06880 NC |
1071 | #ifdef PERL_MAD |
1072 | sv_catpvn(PL_linestr, ";}", 2); | |
1073 | #else | |
01a19ab0 | 1074 | sv_setpvn(PL_linestr, ";}", 2); |
5db06880 | 1075 | #endif |
01a19ab0 NC |
1076 | PL_minus_n = 0; |
1077 | } | |
a0d0e21e | 1078 | else |
5db06880 NC |
1079 | #ifdef PERL_MAD |
1080 | sv_catpvn(PL_linestr,";", 1); | |
1081 | #else | |
4147a61b | 1082 | sv_setpvn(PL_linestr,";", 1); |
5db06880 | 1083 | #endif |
ffb4593c NT |
1084 | |
1085 | /* reset variables for next time we lex */ | |
9cbb5ea2 | 1086 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart |
89122651 NC |
1087 | = SvPVX(PL_linestr) |
1088 | #ifdef PERL_MAD | |
1089 | + curoff | |
1090 | #endif | |
1091 | ; | |
3280af22 | 1092 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 1093 | PL_last_lop = PL_last_uni = NULL; |
ffb4593c NT |
1094 | |
1095 | /* Close the filehandle. Could be from -P preprocessor, | |
1096 | * STDIN, or a regular file. If we were reading code from | |
1097 | * STDIN (because the commandline held no -e or filename) | |
1098 | * then we don't close it, we reset it so the code can | |
1099 | * read from STDIN too. | |
1100 | */ | |
1101 | ||
3280af22 NIS |
1102 | if (PL_preprocess && !PL_in_eval) |
1103 | (void)PerlProc_pclose(PL_rsfp); | |
1104 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) | |
1105 | PerlIO_clearerr(PL_rsfp); | |
8990e307 | 1106 | else |
3280af22 | 1107 | (void)PerlIO_close(PL_rsfp); |
4608196e | 1108 | PL_rsfp = NULL; |
463ee0b2 LW |
1109 | return s; |
1110 | } | |
ffb4593c NT |
1111 | |
1112 | /* not at end of file, so we only read another line */ | |
09bef843 SB |
1113 | /* make corresponding updates to old pointers, for yyerror() */ |
1114 | oldprevlen = PL_oldbufptr - PL_bufend; | |
1115 | oldoldprevlen = PL_oldoldbufptr - PL_bufend; | |
1116 | if (PL_last_uni) | |
1117 | oldunilen = PL_last_uni - PL_bufend; | |
1118 | if (PL_last_lop) | |
1119 | oldloplen = PL_last_lop - PL_bufend; | |
3280af22 NIS |
1120 | PL_linestart = PL_bufptr = s + prevlen; |
1121 | PL_bufend = s + SvCUR(PL_linestr); | |
1122 | s = PL_bufptr; | |
09bef843 SB |
1123 | PL_oldbufptr = s + oldprevlen; |
1124 | PL_oldoldbufptr = s + oldoldprevlen; | |
1125 | if (PL_last_uni) | |
1126 | PL_last_uni = s + oldunilen; | |
1127 | if (PL_last_lop) | |
1128 | PL_last_lop = s + oldloplen; | |
a0d0e21e | 1129 | incline(s); |
ffb4593c NT |
1130 | |
1131 | /* debugger active and we're not compiling the debugger code, | |
1132 | * so store the line into the debugger's array of lines | |
1133 | */ | |
80a702cd | 1134 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 1135 | update_debugger_info(NULL, PL_bufptr, PL_bufend - PL_bufptr); |
463ee0b2 | 1136 | } |
5db06880 NC |
1137 | |
1138 | #ifdef PERL_MAD | |
1139 | done: | |
1140 | if (PL_madskills) { | |
cd81e915 | 1141 | if (!PL_skipwhite) |
6b29d1f5 | 1142 | PL_skipwhite = newSVpvs(""); |
5db06880 NC |
1143 | curoff = s - SvPVX(PL_linestr); |
1144 | if (curoff - startoff) | |
cd81e915 | 1145 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, |
5db06880 NC |
1146 | curoff - startoff); |
1147 | } | |
1148 | return s; | |
1149 | #endif | |
a687059c | 1150 | } |
378cc40b | 1151 | |
ffb4593c NT |
1152 | /* |
1153 | * S_check_uni | |
1154 | * Check the unary operators to ensure there's no ambiguity in how they're | |
1155 | * used. An ambiguous piece of code would be: | |
1156 | * rand + 5 | |
1157 | * This doesn't mean rand() + 5. Because rand() is a unary operator, | |
1158 | * the +5 is its argument. | |
1159 | */ | |
1160 | ||
76e3520e | 1161 | STATIC void |
cea2e8a9 | 1162 | S_check_uni(pTHX) |
ba106d47 | 1163 | { |
97aff369 | 1164 | dVAR; |
d4c19fe8 AL |
1165 | const char *s; |
1166 | const char *t; | |
2f3197b3 | 1167 | |
3280af22 | 1168 | if (PL_oldoldbufptr != PL_last_uni) |
2f3197b3 | 1169 | return; |
3280af22 NIS |
1170 | while (isSPACE(*PL_last_uni)) |
1171 | PL_last_uni++; | |
c35e046a AL |
1172 | s = PL_last_uni; |
1173 | while (isALNUM_lazy_if(s,UTF) || *s == '-') | |
1174 | s++; | |
3280af22 | 1175 | if ((t = strchr(s, '(')) && t < PL_bufptr) |
a0d0e21e | 1176 | return; |
6136c704 | 1177 | |
0453d815 | 1178 | if (ckWARN_d(WARN_AMBIGUOUS)){ |
9014280d | 1179 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
32d45c1d NC |
1180 | "Warning: Use of \"%.*s\" without parentheses is ambiguous", |
1181 | (int)(s - PL_last_uni), PL_last_uni); | |
0453d815 | 1182 | } |
2f3197b3 LW |
1183 | } |
1184 | ||
ffb4593c NT |
1185 | /* |
1186 | * LOP : macro to build a list operator. Its behaviour has been replaced | |
1187 | * with a subroutine, S_lop() for which LOP is just another name. | |
1188 | */ | |
1189 | ||
a0d0e21e LW |
1190 | #define LOP(f,x) return lop(f,x,s) |
1191 | ||
ffb4593c NT |
1192 | /* |
1193 | * S_lop | |
1194 | * Build a list operator (or something that might be one). The rules: | |
1195 | * - if we have a next token, then it's a list operator [why?] | |
1196 | * - if the next thing is an opening paren, then it's a function | |
1197 | * - else it's a list operator | |
1198 | */ | |
1199 | ||
76e3520e | 1200 | STATIC I32 |
a0be28da | 1201 | S_lop(pTHX_ I32 f, int x, char *s) |
ffed7fef | 1202 | { |
97aff369 | 1203 | dVAR; |
79072805 | 1204 | yylval.ival = f; |
35c8bce7 | 1205 | CLINE; |
3280af22 NIS |
1206 | PL_expect = x; |
1207 | PL_bufptr = s; | |
1208 | PL_last_lop = PL_oldbufptr; | |
eb160463 | 1209 | PL_last_lop_op = (OPCODE)f; |
5db06880 NC |
1210 | #ifdef PERL_MAD |
1211 | if (PL_lasttoke) | |
1212 | return REPORT(LSTOP); | |
1213 | #else | |
3280af22 | 1214 | if (PL_nexttoke) |
bbf60fe6 | 1215 | return REPORT(LSTOP); |
5db06880 | 1216 | #endif |
79072805 | 1217 | if (*s == '(') |
bbf60fe6 | 1218 | return REPORT(FUNC); |
29595ff2 | 1219 | s = PEEKSPACE(s); |
79072805 | 1220 | if (*s == '(') |
bbf60fe6 | 1221 | return REPORT(FUNC); |
79072805 | 1222 | else |
bbf60fe6 | 1223 | return REPORT(LSTOP); |
79072805 LW |
1224 | } |
1225 | ||
5db06880 NC |
1226 | #ifdef PERL_MAD |
1227 | /* | |
1228 | * S_start_force | |
1229 | * Sets up for an eventual force_next(). start_force(0) basically does | |
1230 | * an unshift, while start_force(-1) does a push. yylex removes items | |
1231 | * on the "pop" end. | |
1232 | */ | |
1233 | ||
1234 | STATIC void | |
1235 | S_start_force(pTHX_ int where) | |
1236 | { | |
1237 | int i; | |
1238 | ||
cd81e915 | 1239 | if (where < 0) /* so people can duplicate start_force(PL_curforce) */ |
5db06880 | 1240 | where = PL_lasttoke; |
cd81e915 NC |
1241 | assert(PL_curforce < 0 || PL_curforce == where); |
1242 | if (PL_curforce != where) { | |
5db06880 NC |
1243 | for (i = PL_lasttoke; i > where; --i) { |
1244 | PL_nexttoke[i] = PL_nexttoke[i-1]; | |
1245 | } | |
1246 | PL_lasttoke++; | |
1247 | } | |
cd81e915 | 1248 | if (PL_curforce < 0) /* in case of duplicate start_force() */ |
5db06880 | 1249 | Zero(&PL_nexttoke[where], 1, NEXTTOKE); |
cd81e915 NC |
1250 | PL_curforce = where; |
1251 | if (PL_nextwhite) { | |
5db06880 | 1252 | if (PL_madskills) |
6b29d1f5 | 1253 | curmad('^', newSVpvs("")); |
cd81e915 | 1254 | CURMAD('_', PL_nextwhite); |
5db06880 NC |
1255 | } |
1256 | } | |
1257 | ||
1258 | STATIC void | |
1259 | S_curmad(pTHX_ char slot, SV *sv) | |
1260 | { | |
1261 | MADPROP **where; | |
1262 | ||
1263 | if (!sv) | |
1264 | return; | |
cd81e915 NC |
1265 | if (PL_curforce < 0) |
1266 | where = &PL_thismad; | |
5db06880 | 1267 | else |
cd81e915 | 1268 | where = &PL_nexttoke[PL_curforce].next_mad; |
5db06880 | 1269 | |
cd81e915 | 1270 | if (PL_faketokens) |
5db06880 NC |
1271 | sv_setpvn(sv, "", 0); |
1272 | else { | |
1273 | if (!IN_BYTES) { | |
1274 | if (UTF && is_utf8_string((U8*)SvPVX(sv), SvCUR(sv))) | |
1275 | SvUTF8_on(sv); | |
1276 | else if (PL_encoding) { | |
1277 | sv_recode_to_utf8(sv, PL_encoding); | |
1278 | } | |
1279 | } | |
1280 | } | |
1281 | ||
1282 | /* keep a slot open for the head of the list? */ | |
1283 | if (slot != '_' && *where && (*where)->mad_key == '^') { | |
1284 | (*where)->mad_key = slot; | |
035e2bcc | 1285 | sv_free((SV*)((*where)->mad_val)); |
5db06880 NC |
1286 | (*where)->mad_val = (void*)sv; |
1287 | } | |
1288 | else | |
1289 | addmad(newMADsv(slot, sv), where, 0); | |
1290 | } | |
1291 | #else | |
b3f24c00 MHM |
1292 | # define start_force(where) NOOP |
1293 | # define curmad(slot, sv) NOOP | |
5db06880 NC |
1294 | #endif |
1295 | ||
ffb4593c NT |
1296 | /* |
1297 | * S_force_next | |
9cbb5ea2 | 1298 | * When the lexer realizes it knows the next token (for instance, |
ffb4593c | 1299 | * it is reordering tokens for the parser) then it can call S_force_next |
9cbb5ea2 | 1300 | * to know what token to return the next time the lexer is called. Caller |
5db06880 NC |
1301 | * will need to set PL_nextval[] (or PL_nexttoke[].next_val with PERL_MAD), |
1302 | * and possibly PL_expect to ensure the lexer handles the token correctly. | |
ffb4593c NT |
1303 | */ |
1304 | ||
4e553d73 | 1305 | STATIC void |
cea2e8a9 | 1306 | S_force_next(pTHX_ I32 type) |
79072805 | 1307 | { |
97aff369 | 1308 | dVAR; |
5db06880 | 1309 | #ifdef PERL_MAD |
cd81e915 | 1310 | if (PL_curforce < 0) |
5db06880 | 1311 | start_force(PL_lasttoke); |
cd81e915 | 1312 | PL_nexttoke[PL_curforce].next_type = type; |
5db06880 NC |
1313 | if (PL_lex_state != LEX_KNOWNEXT) |
1314 | PL_lex_defer = PL_lex_state; | |
1315 | PL_lex_state = LEX_KNOWNEXT; | |
1316 | PL_lex_expect = PL_expect; | |
cd81e915 | 1317 | PL_curforce = -1; |
5db06880 | 1318 | #else |
3280af22 NIS |
1319 | PL_nexttype[PL_nexttoke] = type; |
1320 | PL_nexttoke++; | |
1321 | if (PL_lex_state != LEX_KNOWNEXT) { | |
1322 | PL_lex_defer = PL_lex_state; | |
1323 | PL_lex_expect = PL_expect; | |
1324 | PL_lex_state = LEX_KNOWNEXT; | |
79072805 | 1325 | } |
5db06880 | 1326 | #endif |
79072805 LW |
1327 | } |
1328 | ||
d0a148a6 NC |
1329 | STATIC SV * |
1330 | S_newSV_maybe_utf8(pTHX_ const char *start, STRLEN len) | |
1331 | { | |
97aff369 | 1332 | dVAR; |
9d4ba2ae | 1333 | SV * const sv = newSVpvn(start,len); |
bfed75c6 | 1334 | if (UTF && !IN_BYTES && is_utf8_string((const U8*)start, len)) |
d0a148a6 NC |
1335 | SvUTF8_on(sv); |
1336 | return sv; | |
1337 | } | |
1338 | ||
ffb4593c NT |
1339 | /* |
1340 | * S_force_word | |
1341 | * When the lexer knows the next thing is a word (for instance, it has | |
1342 | * just seen -> and it knows that the next char is a word char, then | |
02b34bbe DM |
1343 | * it calls S_force_word to stick the next word into the PL_nexttoke/val |
1344 | * lookahead. | |
ffb4593c NT |
1345 | * |
1346 | * Arguments: | |
b1b65b59 | 1347 | * char *start : buffer position (must be within PL_linestr) |
02b34bbe | 1348 | * int token : PL_next* will be this type of bare word (e.g., METHOD,WORD) |
ffb4593c NT |
1349 | * int check_keyword : if true, Perl checks to make sure the word isn't |
1350 | * a keyword (do this if the word is a label, e.g. goto FOO) | |
1351 | * int allow_pack : if true, : characters will also be allowed (require, | |
1352 | * use, etc. do this) | |
9cbb5ea2 | 1353 | * int allow_initial_tick : used by the "sub" lexer only. |
ffb4593c NT |
1354 | */ |
1355 | ||
76e3520e | 1356 | STATIC char * |
cea2e8a9 | 1357 | S_force_word(pTHX_ register char *start, int token, int check_keyword, int allow_pack, int allow_initial_tick) |
79072805 | 1358 | { |
97aff369 | 1359 | dVAR; |
463ee0b2 LW |
1360 | register char *s; |
1361 | STRLEN len; | |
4e553d73 | 1362 | |
29595ff2 | 1363 | start = SKIPSPACE1(start); |
463ee0b2 | 1364 | s = start; |
7e2040f0 | 1365 | if (isIDFIRST_lazy_if(s,UTF) || |
a0d0e21e | 1366 | (allow_pack && *s == ':') || |
15f0808c | 1367 | (allow_initial_tick && *s == '\'') ) |
a0d0e21e | 1368 | { |
3280af22 | 1369 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, allow_pack, &len); |
5458a98a | 1370 | if (check_keyword && keyword(PL_tokenbuf, len, 0)) |
463ee0b2 | 1371 | return start; |
cd81e915 | 1372 | start_force(PL_curforce); |
5db06880 NC |
1373 | if (PL_madskills) |
1374 | curmad('X', newSVpvn(start,s-start)); | |
463ee0b2 | 1375 | if (token == METHOD) { |
29595ff2 | 1376 | s = SKIPSPACE1(s); |
463ee0b2 | 1377 | if (*s == '(') |
3280af22 | 1378 | PL_expect = XTERM; |
463ee0b2 | 1379 | else { |
3280af22 | 1380 | PL_expect = XOPERATOR; |
463ee0b2 | 1381 | } |
79072805 | 1382 | } |
e74e6b3d | 1383 | if (PL_madskills) |
63575281 | 1384 | curmad('g', newSVpvs( "forced" )); |
9ded7720 | 1385 | NEXTVAL_NEXTTOKE.opval |
d0a148a6 NC |
1386 | = (OP*)newSVOP(OP_CONST,0, |
1387 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
9ded7720 | 1388 | NEXTVAL_NEXTTOKE.opval->op_private |= OPpCONST_BARE; |
79072805 LW |
1389 | force_next(token); |
1390 | } | |
1391 | return s; | |
1392 | } | |
1393 | ||
ffb4593c NT |
1394 | /* |
1395 | * S_force_ident | |
9cbb5ea2 | 1396 | * Called when the lexer wants $foo *foo &foo etc, but the program |
ffb4593c NT |
1397 | * text only contains the "foo" portion. The first argument is a pointer |
1398 | * to the "foo", and the second argument is the type symbol to prefix. | |
1399 | * Forces the next token to be a "WORD". | |
9cbb5ea2 | 1400 | * Creates the symbol if it didn't already exist (via gv_fetchpv()). |
ffb4593c NT |
1401 | */ |
1402 | ||
76e3520e | 1403 | STATIC void |
bfed75c6 | 1404 | S_force_ident(pTHX_ register const char *s, int kind) |
79072805 | 1405 | { |
97aff369 | 1406 | dVAR; |
c35e046a | 1407 | if (*s) { |
90e5519e NC |
1408 | const STRLEN len = strlen(s); |
1409 | OP* const o = (OP*)newSVOP(OP_CONST, 0, newSVpvn(s, len)); | |
cd81e915 | 1410 | start_force(PL_curforce); |
9ded7720 | 1411 | NEXTVAL_NEXTTOKE.opval = o; |
79072805 | 1412 | force_next(WORD); |
748a9306 | 1413 | if (kind) { |
11343788 | 1414 | o->op_private = OPpCONST_ENTERED; |
55497cff | 1415 | /* XXX see note in pp_entereval() for why we forgo typo |
1416 | warnings if the symbol must be introduced in an eval. | |
1417 | GSAR 96-10-12 */ | |
90e5519e NC |
1418 | gv_fetchpvn_flags(s, len, |
1419 | PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) | |
1420 | : GV_ADD, | |
1421 | kind == '$' ? SVt_PV : | |
1422 | kind == '@' ? SVt_PVAV : | |
1423 | kind == '%' ? SVt_PVHV : | |
a0d0e21e | 1424 | SVt_PVGV |
90e5519e | 1425 | ); |
748a9306 | 1426 | } |
79072805 LW |
1427 | } |
1428 | } | |
1429 | ||
1571675a GS |
1430 | NV |
1431 | Perl_str_to_version(pTHX_ SV *sv) | |
1432 | { | |
1433 | NV retval = 0.0; | |
1434 | NV nshift = 1.0; | |
1435 | STRLEN len; | |
cfd0369c | 1436 | const char *start = SvPV_const(sv,len); |
9d4ba2ae | 1437 | const char * const end = start + len; |
504618e9 | 1438 | const bool utf = SvUTF8(sv) ? TRUE : FALSE; |
1571675a | 1439 | while (start < end) { |
ba210ebe | 1440 | STRLEN skip; |
1571675a GS |
1441 | UV n; |
1442 | if (utf) | |
9041c2e3 | 1443 | n = utf8n_to_uvchr((U8*)start, len, &skip, 0); |
1571675a GS |
1444 | else { |
1445 | n = *(U8*)start; | |
1446 | skip = 1; | |
1447 | } | |
1448 | retval += ((NV)n)/nshift; | |
1449 | start += skip; | |
1450 | nshift *= 1000; | |
1451 | } | |
1452 | return retval; | |
1453 | } | |
1454 | ||
4e553d73 | 1455 | /* |
ffb4593c NT |
1456 | * S_force_version |
1457 | * Forces the next token to be a version number. | |
e759cc13 RGS |
1458 | * If the next token appears to be an invalid version number, (e.g. "v2b"), |
1459 | * and if "guessing" is TRUE, then no new token is created (and the caller | |
1460 | * must use an alternative parsing method). | |
ffb4593c NT |
1461 | */ |
1462 | ||
76e3520e | 1463 | STATIC char * |
e759cc13 | 1464 | S_force_version(pTHX_ char *s, int guessing) |
89bfa8cd | 1465 | { |
97aff369 | 1466 | dVAR; |
5f66b61c | 1467 | OP *version = NULL; |
44dcb63b | 1468 | char *d; |
5db06880 NC |
1469 | #ifdef PERL_MAD |
1470 | I32 startoff = s - SvPVX(PL_linestr); | |
1471 | #endif | |
89bfa8cd | 1472 | |
29595ff2 | 1473 | s = SKIPSPACE1(s); |
89bfa8cd | 1474 | |
44dcb63b | 1475 | d = s; |
dd629d5b | 1476 | if (*d == 'v') |
44dcb63b | 1477 | d++; |
44dcb63b | 1478 | if (isDIGIT(*d)) { |
e759cc13 RGS |
1479 | while (isDIGIT(*d) || *d == '_' || *d == '.') |
1480 | d++; | |
5db06880 NC |
1481 | #ifdef PERL_MAD |
1482 | if (PL_madskills) { | |
cd81e915 | 1483 | start_force(PL_curforce); |
5db06880 NC |
1484 | curmad('X', newSVpvn(s,d-s)); |
1485 | } | |
1486 | #endif | |
9f3d182e | 1487 | if (*d == ';' || isSPACE(*d) || *d == '}' || !*d) { |
dd629d5b | 1488 | SV *ver; |
b73d6f50 | 1489 | s = scan_num(s, &yylval); |
89bfa8cd | 1490 | version = yylval.opval; |
dd629d5b GS |
1491 | ver = cSVOPx(version)->op_sv; |
1492 | if (SvPOK(ver) && !SvNIOK(ver)) { | |
862a34c6 | 1493 | SvUPGRADE(ver, SVt_PVNV); |
9d6ce603 | 1494 | SvNV_set(ver, str_to_version(ver)); |
1571675a | 1495 | SvNOK_on(ver); /* hint that it is a version */ |
44dcb63b | 1496 | } |
89bfa8cd | 1497 | } |
5db06880 NC |
1498 | else if (guessing) { |
1499 | #ifdef PERL_MAD | |
1500 | if (PL_madskills) { | |
cd81e915 NC |
1501 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1502 | PL_nextwhite = 0; | |
5db06880 NC |
1503 | s = SvPVX(PL_linestr) + startoff; |
1504 | } | |
1505 | #endif | |
e759cc13 | 1506 | return s; |
5db06880 | 1507 | } |
89bfa8cd | 1508 | } |
1509 | ||
5db06880 NC |
1510 | #ifdef PERL_MAD |
1511 | if (PL_madskills && !version) { | |
cd81e915 NC |
1512 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1513 | PL_nextwhite = 0; | |
5db06880 NC |
1514 | s = SvPVX(PL_linestr) + startoff; |
1515 | } | |
1516 | #endif | |
89bfa8cd | 1517 | /* NOTE: The parser sees the package name and the VERSION swapped */ |
cd81e915 | 1518 | start_force(PL_curforce); |
9ded7720 | 1519 | NEXTVAL_NEXTTOKE.opval = version; |
4e553d73 | 1520 | force_next(WORD); |
89bfa8cd | 1521 | |
e759cc13 | 1522 | return s; |
89bfa8cd | 1523 | } |
1524 | ||
ffb4593c NT |
1525 | /* |
1526 | * S_tokeq | |
1527 | * Tokenize a quoted string passed in as an SV. It finds the next | |
1528 | * chunk, up to end of string or a backslash. It may make a new | |
1529 | * SV containing that chunk (if HINT_NEW_STRING is on). It also | |
1530 | * turns \\ into \. | |
1531 | */ | |
1532 | ||
76e3520e | 1533 | STATIC SV * |
cea2e8a9 | 1534 | S_tokeq(pTHX_ SV *sv) |
79072805 | 1535 | { |
97aff369 | 1536 | dVAR; |
79072805 LW |
1537 | register char *s; |
1538 | register char *send; | |
1539 | register char *d; | |
b3ac6de7 IZ |
1540 | STRLEN len = 0; |
1541 | SV *pv = sv; | |
79072805 LW |
1542 | |
1543 | if (!SvLEN(sv)) | |
b3ac6de7 | 1544 | goto finish; |
79072805 | 1545 | |
a0d0e21e | 1546 | s = SvPV_force(sv, len); |
21a311ee | 1547 | if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) |
b3ac6de7 | 1548 | goto finish; |
463ee0b2 | 1549 | send = s + len; |
79072805 LW |
1550 | while (s < send && *s != '\\') |
1551 | s++; | |
1552 | if (s == send) | |
b3ac6de7 | 1553 | goto finish; |
79072805 | 1554 | d = s; |
be4731d2 | 1555 | if ( PL_hints & HINT_NEW_STRING ) { |
95a20fc0 | 1556 | pv = sv_2mortal(newSVpvn(SvPVX_const(pv), len)); |
be4731d2 NIS |
1557 | if (SvUTF8(sv)) |
1558 | SvUTF8_on(pv); | |
1559 | } | |
79072805 LW |
1560 | while (s < send) { |
1561 | if (*s == '\\') { | |
a0d0e21e | 1562 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
1563 | s++; /* all that, just for this */ |
1564 | } | |
1565 | *d++ = *s++; | |
1566 | } | |
1567 | *d = '\0'; | |
95a20fc0 | 1568 | SvCUR_set(sv, d - SvPVX_const(sv)); |
b3ac6de7 | 1569 | finish: |
3280af22 | 1570 | if ( PL_hints & HINT_NEW_STRING ) |
b3ac6de7 | 1571 | return new_constant(NULL, 0, "q", sv, pv, "q"); |
79072805 LW |
1572 | return sv; |
1573 | } | |
1574 | ||
ffb4593c NT |
1575 | /* |
1576 | * Now come three functions related to double-quote context, | |
1577 | * S_sublex_start, S_sublex_push, and S_sublex_done. They're used when | |
1578 | * converting things like "\u\Lgnat" into ucfirst(lc("gnat")). They | |
1579 | * interact with PL_lex_state, and create fake ( ... ) argument lists | |
1580 | * to handle functions and concatenation. | |
1581 | * They assume that whoever calls them will be setting up a fake | |
1582 | * join call, because each subthing puts a ',' after it. This lets | |
1583 | * "lower \luPpEr" | |
1584 | * become | |
1585 | * join($, , 'lower ', lcfirst( 'uPpEr', ) ,) | |
1586 | * | |
1587 | * (I'm not sure whether the spurious commas at the end of lcfirst's | |
1588 | * arguments and join's arguments are created or not). | |
1589 | */ | |
1590 | ||
1591 | /* | |
1592 | * S_sublex_start | |
1593 | * Assumes that yylval.ival is the op we're creating (e.g. OP_LCFIRST). | |
1594 | * | |
1595 | * Pattern matching will set PL_lex_op to the pattern-matching op to | |
1596 | * make (we return THING if yylval.ival is OP_NULL, PMFUNC otherwise). | |
1597 | * | |
1598 | * OP_CONST and OP_READLINE are easy--just make the new op and return. | |
1599 | * | |
1600 | * Everything else becomes a FUNC. | |
1601 | * | |
1602 | * Sets PL_lex_state to LEX_INTERPPUSH unless (ival was OP_NULL or we | |
1603 | * had an OP_CONST or OP_READLINE). This just sets us up for a | |
1604 | * call to S_sublex_push(). | |
1605 | */ | |
1606 | ||
76e3520e | 1607 | STATIC I32 |
cea2e8a9 | 1608 | S_sublex_start(pTHX) |
79072805 | 1609 | { |
97aff369 | 1610 | dVAR; |
0d46e09a | 1611 | register const I32 op_type = yylval.ival; |
79072805 LW |
1612 | |
1613 | if (op_type == OP_NULL) { | |
3280af22 | 1614 | yylval.opval = PL_lex_op; |
5f66b61c | 1615 | PL_lex_op = NULL; |
79072805 LW |
1616 | return THING; |
1617 | } | |
1618 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
3280af22 | 1619 | SV *sv = tokeq(PL_lex_stuff); |
b3ac6de7 IZ |
1620 | |
1621 | if (SvTYPE(sv) == SVt_PVIV) { | |
1622 | /* Overloaded constants, nothing fancy: Convert to SVt_PV: */ | |
1623 | STRLEN len; | |
96a5add6 | 1624 | const char * const p = SvPV_const(sv, len); |
f54cb97a | 1625 | SV * const nsv = newSVpvn(p, len); |
01ec43d0 GS |
1626 | if (SvUTF8(sv)) |
1627 | SvUTF8_on(nsv); | |
b3ac6de7 IZ |
1628 | SvREFCNT_dec(sv); |
1629 | sv = nsv; | |
4e553d73 | 1630 | } |
b3ac6de7 | 1631 | yylval.opval = (OP*)newSVOP(op_type, 0, sv); |
a0714e2c | 1632 | PL_lex_stuff = NULL; |
6f33ba73 RGS |
1633 | /* Allow <FH> // "foo" */ |
1634 | if (op_type == OP_READLINE) | |
1635 | PL_expect = XTERMORDORDOR; | |
79072805 LW |
1636 | return THING; |
1637 | } | |
e3f73d4e RGS |
1638 | else if (op_type == OP_BACKTICK && PL_lex_op) { |
1639 | /* readpipe() vas overriden */ | |
1640 | cSVOPx(cLISTOPx(cUNOPx(PL_lex_op)->op_first)->op_first->op_sibling)->op_sv = tokeq(PL_lex_stuff); | |
1641 | yylval.opval = PL_lex_op; | |
9b201d7d | 1642 | PL_lex_op = NULL; |
e3f73d4e RGS |
1643 | PL_lex_stuff = NULL; |
1644 | return THING; | |
1645 | } | |
79072805 | 1646 | |
3280af22 | 1647 | PL_sublex_info.super_state = PL_lex_state; |
eac04b2e | 1648 | PL_sublex_info.sub_inwhat = (U16)op_type; |
3280af22 NIS |
1649 | PL_sublex_info.sub_op = PL_lex_op; |
1650 | PL_lex_state = LEX_INTERPPUSH; | |
55497cff | 1651 | |
3280af22 NIS |
1652 | PL_expect = XTERM; |
1653 | if (PL_lex_op) { | |
1654 | yylval.opval = PL_lex_op; | |
5f66b61c | 1655 | PL_lex_op = NULL; |
55497cff | 1656 | return PMFUNC; |
1657 | } | |
1658 | else | |
1659 | return FUNC; | |
1660 | } | |
1661 | ||
ffb4593c NT |
1662 | /* |
1663 | * S_sublex_push | |
1664 | * Create a new scope to save the lexing state. The scope will be | |
1665 | * ended in S_sublex_done. Returns a '(', starting the function arguments | |
1666 | * to the uc, lc, etc. found before. | |
1667 | * Sets PL_lex_state to LEX_INTERPCONCAT. | |
1668 | */ | |
1669 | ||
76e3520e | 1670 | STATIC I32 |
cea2e8a9 | 1671 | S_sublex_push(pTHX) |
55497cff | 1672 | { |
27da23d5 | 1673 | dVAR; |
f46d017c | 1674 | ENTER; |
55497cff | 1675 | |
3280af22 | 1676 | PL_lex_state = PL_sublex_info.super_state; |
651b5b28 | 1677 | SAVEBOOL(PL_lex_dojoin); |
3280af22 | 1678 | SAVEI32(PL_lex_brackets); |
3280af22 NIS |
1679 | SAVEI32(PL_lex_casemods); |
1680 | SAVEI32(PL_lex_starts); | |
651b5b28 | 1681 | SAVEI8(PL_lex_state); |
7766f137 | 1682 | SAVEVPTR(PL_lex_inpat); |
98246f1e | 1683 | SAVEI16(PL_lex_inwhat); |
57843af0 | 1684 | SAVECOPLINE(PL_curcop); |
3280af22 | 1685 | SAVEPPTR(PL_bufptr); |
8452ff4b | 1686 | SAVEPPTR(PL_bufend); |
3280af22 NIS |
1687 | SAVEPPTR(PL_oldbufptr); |
1688 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
1689 | SAVEPPTR(PL_last_lop); |
1690 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
1691 | SAVEPPTR(PL_linestart); |
1692 | SAVESPTR(PL_linestr); | |
8edd5f42 RGS |
1693 | SAVEGENERICPV(PL_lex_brackstack); |
1694 | SAVEGENERICPV(PL_lex_casestack); | |
3280af22 NIS |
1695 | |
1696 | PL_linestr = PL_lex_stuff; | |
a0714e2c | 1697 | PL_lex_stuff = NULL; |
3280af22 | 1698 | |
9cbb5ea2 GS |
1699 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart |
1700 | = SvPVX(PL_linestr); | |
3280af22 | 1701 | PL_bufend += SvCUR(PL_linestr); |
bd61b366 | 1702 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1703 | SAVEFREESV(PL_linestr); |
1704 | ||
1705 | PL_lex_dojoin = FALSE; | |
1706 | PL_lex_brackets = 0; | |
a02a5408 JC |
1707 | Newx(PL_lex_brackstack, 120, char); |
1708 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
1709 | PL_lex_casemods = 0; |
1710 | *PL_lex_casestack = '\0'; | |
1711 | PL_lex_starts = 0; | |
1712 | PL_lex_state = LEX_INTERPCONCAT; | |
eb160463 | 1713 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 NIS |
1714 | |
1715 | PL_lex_inwhat = PL_sublex_info.sub_inwhat; | |
1716 | if (PL_lex_inwhat == OP_MATCH || PL_lex_inwhat == OP_QR || PL_lex_inwhat == OP_SUBST) | |
1717 | PL_lex_inpat = PL_sublex_info.sub_op; | |
79072805 | 1718 | else |
5f66b61c | 1719 | PL_lex_inpat = NULL; |
79072805 | 1720 | |
55497cff | 1721 | return '('; |
79072805 LW |
1722 | } |
1723 | ||
ffb4593c NT |
1724 | /* |
1725 | * S_sublex_done | |
1726 | * Restores lexer state after a S_sublex_push. | |
1727 | */ | |
1728 | ||
76e3520e | 1729 | STATIC I32 |
cea2e8a9 | 1730 | S_sublex_done(pTHX) |
79072805 | 1731 | { |
27da23d5 | 1732 | dVAR; |
3280af22 | 1733 | if (!PL_lex_starts++) { |
396482e1 | 1734 | SV * const sv = newSVpvs(""); |
9aa983d2 JH |
1735 | if (SvUTF8(PL_linestr)) |
1736 | SvUTF8_on(sv); | |
3280af22 | 1737 | PL_expect = XOPERATOR; |
9aa983d2 | 1738 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
79072805 LW |
1739 | return THING; |
1740 | } | |
1741 | ||
3280af22 NIS |
1742 | if (PL_lex_casemods) { /* oops, we've got some unbalanced parens */ |
1743 | PL_lex_state = LEX_INTERPCASEMOD; | |
cea2e8a9 | 1744 | return yylex(); |
79072805 LW |
1745 | } |
1746 | ||
ffb4593c | 1747 | /* Is there a right-hand side to take care of? (s//RHS/ or tr//RHS/) */ |
3280af22 NIS |
1748 | if (PL_lex_repl && (PL_lex_inwhat == OP_SUBST || PL_lex_inwhat == OP_TRANS)) { |
1749 | PL_linestr = PL_lex_repl; | |
1750 | PL_lex_inpat = 0; | |
1751 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
1752 | PL_bufend += SvCUR(PL_linestr); | |
bd61b366 | 1753 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1754 | SAVEFREESV(PL_linestr); |
1755 | PL_lex_dojoin = FALSE; | |
1756 | PL_lex_brackets = 0; | |
3280af22 NIS |
1757 | PL_lex_casemods = 0; |
1758 | *PL_lex_casestack = '\0'; | |
1759 | PL_lex_starts = 0; | |
25da4f38 | 1760 | if (SvEVALED(PL_lex_repl)) { |
3280af22 NIS |
1761 | PL_lex_state = LEX_INTERPNORMAL; |
1762 | PL_lex_starts++; | |
e9fa98b2 HS |
1763 | /* we don't clear PL_lex_repl here, so that we can check later |
1764 | whether this is an evalled subst; that means we rely on the | |
1765 | logic to ensure sublex_done() is called again only via the | |
1766 | branch (in yylex()) that clears PL_lex_repl, else we'll loop */ | |
79072805 | 1767 | } |
e9fa98b2 | 1768 | else { |
3280af22 | 1769 | PL_lex_state = LEX_INTERPCONCAT; |
a0714e2c | 1770 | PL_lex_repl = NULL; |
e9fa98b2 | 1771 | } |
79072805 | 1772 | return ','; |
ffed7fef LW |
1773 | } |
1774 | else { | |
5db06880 NC |
1775 | #ifdef PERL_MAD |
1776 | if (PL_madskills) { | |
cd81e915 NC |
1777 | if (PL_thiswhite) { |
1778 | if (!PL_endwhite) | |
6b29d1f5 | 1779 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
1780 | sv_catsv(PL_endwhite, PL_thiswhite); |
1781 | PL_thiswhite = 0; | |
1782 | } | |
1783 | if (PL_thistoken) | |
1784 | sv_setpvn(PL_thistoken,"",0); | |
5db06880 | 1785 | else |
cd81e915 | 1786 | PL_realtokenstart = -1; |
5db06880 NC |
1787 | } |
1788 | #endif | |
f46d017c | 1789 | LEAVE; |
3280af22 NIS |
1790 | PL_bufend = SvPVX(PL_linestr); |
1791 | PL_bufend += SvCUR(PL_linestr); | |
1792 | PL_expect = XOPERATOR; | |
09bef843 | 1793 | PL_sublex_info.sub_inwhat = 0; |
79072805 | 1794 | return ')'; |
ffed7fef LW |
1795 | } |
1796 | } | |
1797 | ||
02aa26ce NT |
1798 | /* |
1799 | scan_const | |
1800 | ||
1801 | Extracts a pattern, double-quoted string, or transliteration. This | |
1802 | is terrifying code. | |
1803 | ||
94def140 | 1804 | It looks at PL_lex_inwhat and PL_lex_inpat to find out whether it's |
3280af22 | 1805 | processing a pattern (PL_lex_inpat is true), a transliteration |
94def140 | 1806 | (PL_lex_inwhat == OP_TRANS is true), or a double-quoted string. |
02aa26ce | 1807 | |
94def140 TS |
1808 | Returns a pointer to the character scanned up to. If this is |
1809 | advanced from the start pointer supplied (i.e. if anything was | |
9b599b2a GS |
1810 | successfully parsed), will leave an OP for the substring scanned |
1811 | in yylval. Caller must intuit reason for not parsing further | |
1812 | by looking at the next characters herself. | |
1813 | ||
02aa26ce NT |
1814 | In patterns: |
1815 | backslashes: | |
1816 | double-quoted style: \r and \n | |
1817 | regexp special ones: \D \s | |
94def140 TS |
1818 | constants: \x31 |
1819 | backrefs: \1 | |
02aa26ce NT |
1820 | case and quoting: \U \Q \E |
1821 | stops on @ and $, but not for $ as tail anchor | |
1822 | ||
1823 | In transliterations: | |
1824 | characters are VERY literal, except for - not at the start or end | |
94def140 TS |
1825 | of the string, which indicates a range. If the range is in bytes, |
1826 | scan_const expands the range to the full set of intermediate | |
1827 | characters. If the range is in utf8, the hyphen is replaced with | |
1828 | a certain range mark which will be handled by pmtrans() in op.c. | |
02aa26ce NT |
1829 | |
1830 | In double-quoted strings: | |
1831 | backslashes: | |
1832 | double-quoted style: \r and \n | |
94def140 TS |
1833 | constants: \x31 |
1834 | deprecated backrefs: \1 (in substitution replacements) | |
02aa26ce NT |
1835 | case and quoting: \U \Q \E |
1836 | stops on @ and $ | |
1837 | ||
1838 | scan_const does *not* construct ops to handle interpolated strings. | |
1839 | It stops processing as soon as it finds an embedded $ or @ variable | |
1840 | and leaves it to the caller to work out what's going on. | |
1841 | ||
94def140 TS |
1842 | embedded arrays (whether in pattern or not) could be: |
1843 | @foo, @::foo, @'foo, @{foo}, @$foo, @+, @-. | |
1844 | ||
1845 | $ in double-quoted strings must be the symbol of an embedded scalar. | |
02aa26ce NT |
1846 | |
1847 | $ in pattern could be $foo or could be tail anchor. Assumption: | |
1848 | it's a tail anchor if $ is the last thing in the string, or if it's | |
94def140 | 1849 | followed by one of "()| \r\n\t" |
02aa26ce NT |
1850 | |
1851 | \1 (backreferences) are turned into $1 | |
1852 | ||
1853 | The structure of the code is | |
1854 | while (there's a character to process) { | |
94def140 TS |
1855 | handle transliteration ranges |
1856 | skip regexp comments /(?#comment)/ and codes /(?{code})/ | |
1857 | skip #-initiated comments in //x patterns | |
1858 | check for embedded arrays | |
02aa26ce NT |
1859 | check for embedded scalars |
1860 | if (backslash) { | |
94def140 TS |
1861 | leave intact backslashes from leaveit (below) |
1862 | deprecate \1 in substitution replacements | |
02aa26ce NT |
1863 | handle string-changing backslashes \l \U \Q \E, etc. |
1864 | switch (what was escaped) { | |
94def140 TS |
1865 | handle \- in a transliteration (becomes a literal -) |
1866 | handle \132 (octal characters) | |
1867 | handle \x15 and \x{1234} (hex characters) | |
1868 | handle \N{name} (named characters) | |
1869 | handle \cV (control characters) | |
1870 | handle printf-style backslashes (\f, \r, \n, etc) | |
02aa26ce NT |
1871 | } (end switch) |
1872 | } (end if backslash) | |
1873 | } (end while character to read) | |
4e553d73 | 1874 | |
02aa26ce NT |
1875 | */ |
1876 | ||
76e3520e | 1877 | STATIC char * |
cea2e8a9 | 1878 | S_scan_const(pTHX_ char *start) |
79072805 | 1879 | { |
97aff369 | 1880 | dVAR; |
3280af22 | 1881 | register char *send = PL_bufend; /* end of the constant */ |
561b68a9 | 1882 | SV *sv = newSV(send - start); /* sv for the constant */ |
02aa26ce NT |
1883 | register char *s = start; /* start of the constant */ |
1884 | register char *d = SvPVX(sv); /* destination for copies */ | |
1885 | bool dorange = FALSE; /* are we in a translit range? */ | |
c2e66d9e | 1886 | bool didrange = FALSE; /* did we just finish a range? */ |
2b9d42f0 NIS |
1887 | I32 has_utf8 = FALSE; /* Output constant is UTF8 */ |
1888 | I32 this_utf8 = UTF; /* The source string is assumed to be UTF8 */ | |
012bcf8d | 1889 | UV uv; |
4c3a8340 TS |
1890 | #ifdef EBCDIC |
1891 | UV literal_endpoint = 0; | |
e294cc5d | 1892 | bool native_range = TRUE; /* turned to FALSE if the first endpoint is Unicode. */ |
4c3a8340 | 1893 | #endif |
012bcf8d | 1894 | |
2b9d42f0 NIS |
1895 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
1896 | /* If we are doing a trans and we know we want UTF8 set expectation */ | |
1897 | has_utf8 = PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF); | |
1898 | this_utf8 = PL_sublex_info.sub_op->op_private & (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
1899 | } | |
1900 | ||
1901 | ||
79072805 | 1902 | while (s < send || dorange) { |
02aa26ce | 1903 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 1904 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 1905 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 1906 | if (dorange) { |
1ba5c669 JH |
1907 | I32 i; /* current expanded character */ |
1908 | I32 min; /* first character in range */ | |
1909 | I32 max; /* last character in range */ | |
02aa26ce | 1910 | |
e294cc5d JH |
1911 | #ifdef EBCDIC |
1912 | UV uvmax = 0; | |
1913 | #endif | |
1914 | ||
1915 | if (has_utf8 | |
1916 | #ifdef EBCDIC | |
1917 | && !native_range | |
1918 | #endif | |
1919 | ) { | |
9d4ba2ae | 1920 | char * const c = (char*)utf8_hop((U8*)d, -1); |
8973db79 JH |
1921 | char *e = d++; |
1922 | while (e-- > c) | |
1923 | *(e + 1) = *e; | |
25716404 | 1924 | *c = (char)UTF_TO_NATIVE(0xff); |
8973db79 JH |
1925 | /* mark the range as done, and continue */ |
1926 | dorange = FALSE; | |
1927 | didrange = TRUE; | |
1928 | continue; | |
1929 | } | |
2b9d42f0 | 1930 | |
95a20fc0 | 1931 | i = d - SvPVX_const(sv); /* remember current offset */ |
e294cc5d JH |
1932 | #ifdef EBCDIC |
1933 | SvGROW(sv, | |
1934 | SvLEN(sv) + (has_utf8 ? | |
1935 | (512 - UTF_CONTINUATION_MARK + | |
1936 | UNISKIP(0x100)) | |
1937 | : 256)); | |
1938 | /* How many two-byte within 0..255: 128 in UTF-8, | |
1939 | * 96 in UTF-8-mod. */ | |
1940 | #else | |
9cbb5ea2 | 1941 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
e294cc5d | 1942 | #endif |
9cbb5ea2 | 1943 | d = SvPVX(sv) + i; /* refresh d after realloc */ |
e294cc5d JH |
1944 | #ifdef EBCDIC |
1945 | if (has_utf8) { | |
1946 | int j; | |
1947 | for (j = 0; j <= 1; j++) { | |
1948 | char * const c = (char*)utf8_hop((U8*)d, -1); | |
1949 | const UV uv = utf8n_to_uvchr((U8*)c, d - c, NULL, 0); | |
1950 | if (j) | |
1951 | min = (U8)uv; | |
1952 | else if (uv < 256) | |
1953 | max = (U8)uv; | |
1954 | else { | |
1955 | max = (U8)0xff; /* only to \xff */ | |
1956 | uvmax = uv; /* \x{100} to uvmax */ | |
1957 | } | |
1958 | d = c; /* eat endpoint chars */ | |
1959 | } | |
1960 | } | |
1961 | else { | |
1962 | #endif | |
1963 | d -= 2; /* eat the first char and the - */ | |
1964 | min = (U8)*d; /* first char in range */ | |
1965 | max = (U8)d[1]; /* last char in range */ | |
1966 | #ifdef EBCDIC | |
1967 | } | |
1968 | #endif | |
8ada0baa | 1969 | |
c2e66d9e | 1970 | if (min > max) { |
01ec43d0 | 1971 | Perl_croak(aTHX_ |
d1573ac7 | 1972 | "Invalid range \"%c-%c\" in transliteration operator", |
1ba5c669 | 1973 | (char)min, (char)max); |
c2e66d9e GS |
1974 | } |
1975 | ||
c7f1f016 | 1976 | #ifdef EBCDIC |
4c3a8340 TS |
1977 | if (literal_endpoint == 2 && |
1978 | ((isLOWER(min) && isLOWER(max)) || | |
1979 | (isUPPER(min) && isUPPER(max)))) { | |
8ada0baa JH |
1980 | if (isLOWER(min)) { |
1981 | for (i = min; i <= max; i++) | |
1982 | if (isLOWER(i)) | |
db42d148 | 1983 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1984 | } else { |
1985 | for (i = min; i <= max; i++) | |
1986 | if (isUPPER(i)) | |
db42d148 | 1987 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1988 | } |
1989 | } | |
1990 | else | |
1991 | #endif | |
1992 | for (i = min; i <= max; i++) | |
e294cc5d JH |
1993 | #ifdef EBCDIC |
1994 | if (has_utf8) { | |
1995 | const U8 ch = (U8)NATIVE_TO_UTF(i); | |
1996 | if (UNI_IS_INVARIANT(ch)) | |
1997 | *d++ = (U8)i; | |
1998 | else { | |
1999 | *d++ = (U8)UTF8_EIGHT_BIT_HI(ch); | |
2000 | *d++ = (U8)UTF8_EIGHT_BIT_LO(ch); | |
2001 | } | |
2002 | } | |
2003 | else | |
2004 | #endif | |
2005 | *d++ = (char)i; | |
2006 | ||
2007 | #ifdef EBCDIC | |
2008 | if (uvmax) { | |
2009 | d = (char*)uvchr_to_utf8((U8*)d, 0x100); | |
2010 | if (uvmax > 0x101) | |
2011 | *d++ = (char)UTF_TO_NATIVE(0xff); | |
2012 | if (uvmax > 0x100) | |
2013 | d = (char*)uvchr_to_utf8((U8*)d, uvmax); | |
2014 | } | |
2015 | #endif | |
02aa26ce NT |
2016 | |
2017 | /* mark the range as done, and continue */ | |
79072805 | 2018 | dorange = FALSE; |
01ec43d0 | 2019 | didrange = TRUE; |
4c3a8340 TS |
2020 | #ifdef EBCDIC |
2021 | literal_endpoint = 0; | |
2022 | #endif | |
79072805 | 2023 | continue; |
4e553d73 | 2024 | } |
02aa26ce NT |
2025 | |
2026 | /* range begins (ignore - as first or last char) */ | |
79072805 | 2027 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 2028 | if (didrange) { |
1fafa243 | 2029 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 2030 | } |
e294cc5d JH |
2031 | if (has_utf8 |
2032 | #ifdef EBCDIC | |
2033 | && !native_range | |
2034 | #endif | |
2035 | ) { | |
25716404 | 2036 | *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
2037 | s++; |
2038 | continue; | |
2039 | } | |
79072805 LW |
2040 | dorange = TRUE; |
2041 | s++; | |
01ec43d0 GS |
2042 | } |
2043 | else { | |
2044 | didrange = FALSE; | |
4c3a8340 TS |
2045 | #ifdef EBCDIC |
2046 | literal_endpoint = 0; | |
e294cc5d | 2047 | native_range = TRUE; |
4c3a8340 | 2048 | #endif |
01ec43d0 | 2049 | } |
79072805 | 2050 | } |
02aa26ce NT |
2051 | |
2052 | /* if we get here, we're not doing a transliteration */ | |
2053 | ||
0f5d15d6 IZ |
2054 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
2055 | except for the last char, which will be done separately. */ | |
3280af22 | 2056 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 | 2057 | if (s[2] == '#') { |
e994fd66 | 2058 | while (s+1 < send && *s != ')') |
db42d148 | 2059 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
155aba94 GS |
2060 | } |
2061 | else if (s[2] == '{' /* This should match regcomp.c */ | |
67edc0c9 | 2062 | || (s[2] == '?' && s[3] == '{')) |
155aba94 | 2063 | { |
cc6b7395 | 2064 | I32 count = 1; |
0f5d15d6 | 2065 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
2066 | char c; |
2067 | ||
d9f97599 GS |
2068 | while (count && (c = *regparse)) { |
2069 | if (c == '\\' && regparse[1]) | |
2070 | regparse++; | |
4e553d73 | 2071 | else if (c == '{') |
cc6b7395 | 2072 | count++; |
4e553d73 | 2073 | else if (c == '}') |
cc6b7395 | 2074 | count--; |
d9f97599 | 2075 | regparse++; |
cc6b7395 | 2076 | } |
e994fd66 | 2077 | if (*regparse != ')') |
5bdf89e7 | 2078 | regparse--; /* Leave one char for continuation. */ |
0f5d15d6 | 2079 | while (s < regparse) |
db42d148 | 2080 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
cc6b7395 | 2081 | } |
748a9306 | 2082 | } |
02aa26ce NT |
2083 | |
2084 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
2085 | else if (*s == '#' && PL_lex_inpat && |
2086 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 | 2087 | while (s+1 < send && *s != '\n') |
db42d148 | 2088 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
748a9306 | 2089 | } |
02aa26ce | 2090 | |
5d1d4326 | 2091 | /* check for embedded arrays |
da6eedaa | 2092 | (@foo, @::foo, @'foo, @{foo}, @$foo, @+, @-) |
5d1d4326 | 2093 | */ |
1749ea0d TS |
2094 | else if (*s == '@' && s[1]) { |
2095 | if (isALNUM_lazy_if(s+1,UTF)) | |
2096 | break; | |
2097 | if (strchr(":'{$", s[1])) | |
2098 | break; | |
2099 | if (!PL_lex_inpat && (s[1] == '+' || s[1] == '-')) | |
2100 | break; /* in regexp, neither @+ nor @- are interpolated */ | |
2101 | } | |
02aa26ce NT |
2102 | |
2103 | /* check for embedded scalars. only stop if we're sure it's a | |
2104 | variable. | |
2105 | */ | |
79072805 | 2106 | else if (*s == '$') { |
3280af22 | 2107 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 2108 | break; |
6002328a | 2109 | if (s + 1 < send && !strchr("()| \r\n\t", s[1])) |
79072805 LW |
2110 | break; /* in regexp, $ might be tail anchor */ |
2111 | } | |
02aa26ce | 2112 | |
2b9d42f0 NIS |
2113 | /* End of else if chain - OP_TRANS rejoin rest */ |
2114 | ||
02aa26ce | 2115 | /* backslashes */ |
79072805 LW |
2116 | if (*s == '\\' && s+1 < send) { |
2117 | s++; | |
02aa26ce | 2118 | |
02aa26ce | 2119 | /* deprecate \1 in strings and substitution replacements */ |
3280af22 | 2120 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 2121 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 2122 | { |
599cee73 | 2123 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 2124 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s); |
79072805 LW |
2125 | *--s = '$'; |
2126 | break; | |
2127 | } | |
02aa26ce NT |
2128 | |
2129 | /* string-change backslash escapes */ | |
3280af22 | 2130 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
2131 | --s; |
2132 | break; | |
2133 | } | |
cc74c5bd TS |
2134 | /* skip any other backslash escapes in a pattern */ |
2135 | else if (PL_lex_inpat) { | |
2136 | *d++ = NATIVE_TO_NEED(has_utf8,'\\'); | |
2137 | goto default_action; | |
2138 | } | |
02aa26ce NT |
2139 | |
2140 | /* if we get here, it's either a quoted -, or a digit */ | |
79072805 | 2141 | switch (*s) { |
02aa26ce NT |
2142 | |
2143 | /* quoted - in transliterations */ | |
79072805 | 2144 | case '-': |
3280af22 | 2145 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
2146 | *d++ = *s++; |
2147 | continue; | |
2148 | } | |
2149 | /* FALL THROUGH */ | |
2150 | default: | |
11b8faa4 | 2151 | { |
86f97054 | 2152 | if ((isALPHA(*s) || isDIGIT(*s)) && |
041457d9 | 2153 | ckWARN(WARN_MISC)) |
9014280d | 2154 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
e294cc5d JH |
2155 | "Unrecognized escape \\%c passed through", |
2156 | *s); | |
11b8faa4 | 2157 | /* default action is to copy the quoted character */ |
f9a63242 | 2158 | goto default_action; |
11b8faa4 | 2159 | } |
02aa26ce NT |
2160 | |
2161 | /* \132 indicates an octal constant */ | |
79072805 LW |
2162 | case '0': case '1': case '2': case '3': |
2163 | case '4': case '5': case '6': case '7': | |
ba210ebe | 2164 | { |
53305cf1 NC |
2165 | I32 flags = 0; |
2166 | STRLEN len = 3; | |
2167 | uv = grok_oct(s, &len, &flags, NULL); | |
ba210ebe JH |
2168 | s += len; |
2169 | } | |
012bcf8d | 2170 | goto NUM_ESCAPE_INSERT; |
02aa26ce NT |
2171 | |
2172 | /* \x24 indicates a hex constant */ | |
79072805 | 2173 | case 'x': |
a0ed51b3 LW |
2174 | ++s; |
2175 | if (*s == '{') { | |
9d4ba2ae | 2176 | char* const e = strchr(s, '}'); |
a4c04bdc NC |
2177 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
2178 | PERL_SCAN_DISALLOW_PREFIX; | |
53305cf1 | 2179 | STRLEN len; |
355860ce | 2180 | |
53305cf1 | 2181 | ++s; |
adaeee49 | 2182 | if (!e) { |
a0ed51b3 | 2183 | yyerror("Missing right brace on \\x{}"); |
355860ce | 2184 | continue; |
ba210ebe | 2185 | } |
53305cf1 NC |
2186 | len = e - s; |
2187 | uv = grok_hex(s, &len, &flags, NULL); | |
ba210ebe | 2188 | s = e + 1; |
a0ed51b3 LW |
2189 | } |
2190 | else { | |
ba210ebe | 2191 | { |
53305cf1 | 2192 | STRLEN len = 2; |
a4c04bdc | 2193 | I32 flags = PERL_SCAN_DISALLOW_PREFIX; |
53305cf1 | 2194 | uv = grok_hex(s, &len, &flags, NULL); |
ba210ebe JH |
2195 | s += len; |
2196 | } | |
012bcf8d GS |
2197 | } |
2198 | ||
2199 | NUM_ESCAPE_INSERT: | |
2200 | /* Insert oct or hex escaped character. | |
301d3d20 | 2201 | * There will always enough room in sv since such |
db42d148 | 2202 | * escapes will be longer than any UTF-8 sequence |
301d3d20 | 2203 | * they can end up as. */ |
ba7cea30 | 2204 | |
c7f1f016 NIS |
2205 | /* We need to map to chars to ASCII before doing the tests |
2206 | to cover EBCDIC | |
2207 | */ | |
c4d5f83a | 2208 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(uv))) { |
9aa983d2 | 2209 | if (!has_utf8 && uv > 255) { |
301d3d20 JH |
2210 | /* Might need to recode whatever we have |
2211 | * accumulated so far if it contains any | |
2212 | * hibit chars. | |
2213 | * | |
2214 | * (Can't we keep track of that and avoid | |
2215 | * this rescan? --jhi) | |
012bcf8d | 2216 | */ |
c7f1f016 | 2217 | int hicount = 0; |
63cd0674 NIS |
2218 | U8 *c; |
2219 | for (c = (U8 *) SvPVX(sv); c < (U8 *)d; c++) { | |
c4d5f83a | 2220 | if (!NATIVE_IS_INVARIANT(*c)) { |
012bcf8d | 2221 | hicount++; |
db42d148 | 2222 | } |
012bcf8d | 2223 | } |
63cd0674 | 2224 | if (hicount) { |
9d4ba2ae | 2225 | const STRLEN offset = d - SvPVX_const(sv); |
db42d148 NIS |
2226 | U8 *src, *dst; |
2227 | d = SvGROW(sv, SvLEN(sv) + hicount + 1) + offset; | |
2228 | src = (U8 *)d - 1; | |
2229 | dst = src+hicount; | |
2230 | d += hicount; | |
cfd0369c | 2231 | while (src >= (const U8 *)SvPVX_const(sv)) { |
c4d5f83a | 2232 | if (!NATIVE_IS_INVARIANT(*src)) { |
9d4ba2ae | 2233 | const U8 ch = NATIVE_TO_ASCII(*src); |
eb160463 GS |
2234 | *dst-- = (U8)UTF8_EIGHT_BIT_LO(ch); |
2235 | *dst-- = (U8)UTF8_EIGHT_BIT_HI(ch); | |
012bcf8d GS |
2236 | } |
2237 | else { | |
63cd0674 | 2238 | *dst-- = *src; |
012bcf8d | 2239 | } |
c7f1f016 | 2240 | src--; |
012bcf8d GS |
2241 | } |
2242 | } | |
2243 | } | |
2244 | ||
9aa983d2 | 2245 | if (has_utf8 || uv > 255) { |
9041c2e3 | 2246 | d = (char*)uvchr_to_utf8((U8*)d, uv); |
4e553d73 | 2247 | has_utf8 = TRUE; |
f9a63242 JH |
2248 | if (PL_lex_inwhat == OP_TRANS && |
2249 | PL_sublex_info.sub_op) { | |
2250 | PL_sublex_info.sub_op->op_private |= | |
2251 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
2252 | : OPpTRANS_TO_UTF); | |
f9a63242 | 2253 | } |
e294cc5d JH |
2254 | #ifdef EBCDIC |
2255 | if (uv > 255 && !dorange) | |
2256 | native_range = FALSE; | |
2257 | #endif | |
012bcf8d | 2258 | } |
a0ed51b3 | 2259 | else { |
012bcf8d | 2260 | *d++ = (char)uv; |
a0ed51b3 | 2261 | } |
012bcf8d GS |
2262 | } |
2263 | else { | |
c4d5f83a | 2264 | *d++ = (char) uv; |
a0ed51b3 | 2265 | } |
79072805 | 2266 | continue; |
02aa26ce | 2267 | |
b239daa5 | 2268 | /* \N{LATIN SMALL LETTER A} is a named character */ |
4a2d328f | 2269 | case 'N': |
55eda711 | 2270 | ++s; |
423cee85 JH |
2271 | if (*s == '{') { |
2272 | char* e = strchr(s, '}'); | |
155aba94 | 2273 | SV *res; |
423cee85 | 2274 | STRLEN len; |
cfd0369c | 2275 | const char *str; |
fc8cd66c | 2276 | SV *type; |
4e553d73 | 2277 | |
423cee85 | 2278 | if (!e) { |
5777a3f7 | 2279 | yyerror("Missing right brace on \\N{}"); |
423cee85 JH |
2280 | e = s - 1; |
2281 | goto cont_scan; | |
2282 | } | |
dbc0d4f2 JH |
2283 | if (e > s + 2 && s[1] == 'U' && s[2] == '+') { |
2284 | /* \N{U+...} */ | |
2285 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | | |
2286 | PERL_SCAN_DISALLOW_PREFIX; | |
2287 | s += 3; | |
2288 | len = e - s; | |
2289 | uv = grok_hex(s, &len, &flags, NULL); | |
b57a0404 JH |
2290 | if ( e > s && len != (STRLEN)(e - s) ) { |
2291 | uv = 0xFFFD; | |
fc8cd66c | 2292 | } |
dbc0d4f2 JH |
2293 | s = e + 1; |
2294 | goto NUM_ESCAPE_INSERT; | |
2295 | } | |
55eda711 | 2296 | res = newSVpvn(s + 1, e - s - 1); |
fc8cd66c | 2297 | type = newSVpvn(s - 2,e - s + 3); |
bd61b366 | 2298 | res = new_constant( NULL, 0, "charnames", |
fc8cd66c YO |
2299 | res, NULL, SvPVX(type) ); |
2300 | SvREFCNT_dec(type); | |
f9a63242 JH |
2301 | if (has_utf8) |
2302 | sv_utf8_upgrade(res); | |
cfd0369c | 2303 | str = SvPV_const(res,len); |
1c47067b JH |
2304 | #ifdef EBCDIC_NEVER_MIND |
2305 | /* charnames uses pack U and that has been | |
2306 | * recently changed to do the below uni->native | |
2307 | * mapping, so this would be redundant (and wrong, | |
2308 | * the code point would be doubly converted). | |
2309 | * But leave this in just in case the pack U change | |
2310 | * gets revoked, but the semantics is still | |
2311 | * desireable for charnames. --jhi */ | |
cddc7ef4 | 2312 | { |
cfd0369c | 2313 | UV uv = utf8_to_uvchr((const U8*)str, 0); |
cddc7ef4 JH |
2314 | |
2315 | if (uv < 0x100) { | |
89ebb4a3 | 2316 | U8 tmpbuf[UTF8_MAXBYTES+1], *d; |
cddc7ef4 JH |
2317 | |
2318 | d = uvchr_to_utf8(tmpbuf, UNI_TO_NATIVE(uv)); | |
2319 | sv_setpvn(res, (char *)tmpbuf, d - tmpbuf); | |
cfd0369c | 2320 | str = SvPV_const(res, len); |
cddc7ef4 JH |
2321 | } |
2322 | } | |
2323 | #endif | |
89491803 | 2324 | if (!has_utf8 && SvUTF8(res)) { |
9d4ba2ae | 2325 | const char * const ostart = SvPVX_const(sv); |
f08d6ad9 GS |
2326 | SvCUR_set(sv, d - ostart); |
2327 | SvPOK_on(sv); | |
e4f3eed8 | 2328 | *d = '\0'; |
f08d6ad9 | 2329 | sv_utf8_upgrade(sv); |
d2f449dd | 2330 | /* this just broke our allocation above... */ |
eb160463 | 2331 | SvGROW(sv, (STRLEN)(send - start)); |
f08d6ad9 | 2332 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 2333 | has_utf8 = TRUE; |
f08d6ad9 | 2334 | } |
eb160463 | 2335 | if (len > (STRLEN)(e - s + 4)) { /* I _guess_ 4 is \N{} --jhi */ |
9d4ba2ae | 2336 | const char * const odest = SvPVX_const(sv); |
423cee85 | 2337 | |
8973db79 | 2338 | SvGROW(sv, (SvLEN(sv) + len - (e - s + 4))); |
423cee85 JH |
2339 | d = SvPVX(sv) + (d - odest); |
2340 | } | |
e294cc5d JH |
2341 | #ifdef EBCDIC |
2342 | if (!dorange) | |
2343 | native_range = FALSE; /* \N{} is guessed to be Unicode */ | |
2344 | #endif | |
423cee85 JH |
2345 | Copy(str, d, len, char); |
2346 | d += len; | |
2347 | SvREFCNT_dec(res); | |
2348 | cont_scan: | |
2349 | s = e + 1; | |
2350 | } | |
2351 | else | |
5777a3f7 | 2352 | yyerror("Missing braces on \\N{}"); |
423cee85 JH |
2353 | continue; |
2354 | ||
02aa26ce | 2355 | /* \c is a control character */ |
79072805 LW |
2356 | case 'c': |
2357 | s++; | |
961ce445 | 2358 | if (s < send) { |
ba210ebe | 2359 | U8 c = *s++; |
c7f1f016 NIS |
2360 | #ifdef EBCDIC |
2361 | if (isLOWER(c)) | |
2362 | c = toUPPER(c); | |
2363 | #endif | |
db42d148 | 2364 | *d++ = NATIVE_TO_NEED(has_utf8,toCTRL(c)); |
ba210ebe | 2365 | } |
961ce445 RGS |
2366 | else { |
2367 | yyerror("Missing control char name in \\c"); | |
2368 | } | |
79072805 | 2369 | continue; |
02aa26ce NT |
2370 | |
2371 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 | 2372 | case 'b': |
db42d148 | 2373 | *d++ = NATIVE_TO_NEED(has_utf8,'\b'); |
79072805 LW |
2374 | break; |
2375 | case 'n': | |
db42d148 | 2376 | *d++ = NATIVE_TO_NEED(has_utf8,'\n'); |
79072805 LW |
2377 | break; |
2378 | case 'r': | |
db42d148 | 2379 | *d++ = NATIVE_TO_NEED(has_utf8,'\r'); |
79072805 LW |
2380 | break; |
2381 | case 'f': | |
db42d148 | 2382 | *d++ = NATIVE_TO_NEED(has_utf8,'\f'); |
79072805 LW |
2383 | break; |
2384 | case 't': | |
db42d148 | 2385 | *d++ = NATIVE_TO_NEED(has_utf8,'\t'); |
79072805 | 2386 | break; |
34a3fe2a | 2387 | case 'e': |
db42d148 | 2388 | *d++ = ASCII_TO_NEED(has_utf8,'\033'); |
34a3fe2a PP |
2389 | break; |
2390 | case 'a': | |
db42d148 | 2391 | *d++ = ASCII_TO_NEED(has_utf8,'\007'); |
79072805 | 2392 | break; |
02aa26ce NT |
2393 | } /* end switch */ |
2394 | ||
79072805 LW |
2395 | s++; |
2396 | continue; | |
02aa26ce | 2397 | } /* end if (backslash) */ |
4c3a8340 TS |
2398 | #ifdef EBCDIC |
2399 | else | |
2400 | literal_endpoint++; | |
2401 | #endif | |
02aa26ce | 2402 | |
f9a63242 | 2403 | default_action: |
2b9d42f0 NIS |
2404 | /* If we started with encoded form, or already know we want it |
2405 | and then encode the next character */ | |
2406 | if ((has_utf8 || this_utf8) && !NATIVE_IS_INVARIANT((U8)(*s))) { | |
2407 | STRLEN len = 1; | |
5f66b61c AL |
2408 | const UV nextuv = (this_utf8) ? utf8n_to_uvchr((U8*)s, send - s, &len, 0) : (UV) ((U8) *s); |
2409 | const STRLEN need = UNISKIP(NATIVE_TO_UNI(nextuv)); | |
2b9d42f0 NIS |
2410 | s += len; |
2411 | if (need > len) { | |
2412 | /* encoded value larger than old, need extra space (NOTE: SvCUR() not set here) */ | |
9d4ba2ae | 2413 | const STRLEN off = d - SvPVX_const(sv); |
2b9d42f0 NIS |
2414 | d = SvGROW(sv, SvLEN(sv) + (need-len)) + off; |
2415 | } | |
5f66b61c | 2416 | d = (char*)uvchr_to_utf8((U8*)d, nextuv); |
2b9d42f0 | 2417 | has_utf8 = TRUE; |
e294cc5d JH |
2418 | #ifdef EBCDIC |
2419 | if (uv > 255 && !dorange) | |
2420 | native_range = FALSE; | |
2421 | #endif | |
2b9d42f0 NIS |
2422 | } |
2423 | else { | |
2424 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
2425 | } | |
02aa26ce NT |
2426 | } /* while loop to process each character */ |
2427 | ||
2428 | /* terminate the string and set up the sv */ | |
79072805 | 2429 | *d = '\0'; |
95a20fc0 | 2430 | SvCUR_set(sv, d - SvPVX_const(sv)); |
2b9d42f0 | 2431 | if (SvCUR(sv) >= SvLEN(sv)) |
d0063567 | 2432 | Perl_croak(aTHX_ "panic: constant overflowed allocated space"); |
2b9d42f0 | 2433 | |
79072805 | 2434 | SvPOK_on(sv); |
9f4817db | 2435 | if (PL_encoding && !has_utf8) { |
d0063567 DK |
2436 | sv_recode_to_utf8(sv, PL_encoding); |
2437 | if (SvUTF8(sv)) | |
2438 | has_utf8 = TRUE; | |
9f4817db | 2439 | } |
2b9d42f0 | 2440 | if (has_utf8) { |
7e2040f0 | 2441 | SvUTF8_on(sv); |
2b9d42f0 | 2442 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
d0063567 | 2443 | PL_sublex_info.sub_op->op_private |= |
2b9d42f0 NIS |
2444 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); |
2445 | } | |
2446 | } | |
79072805 | 2447 | |
02aa26ce | 2448 | /* shrink the sv if we allocated more than we used */ |
79072805 | 2449 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
1da4ca5f | 2450 | SvPV_shrink_to_cur(sv); |
79072805 | 2451 | } |
02aa26ce | 2452 | |
9b599b2a | 2453 | /* return the substring (via yylval) only if we parsed anything */ |
3280af22 NIS |
2454 | if (s > PL_bufptr) { |
2455 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) | |
10edeb5d JH |
2456 | sv = new_constant(start, s - start, |
2457 | (const char *)(PL_lex_inpat ? "qr" : "q"), | |
a0714e2c | 2458 | sv, NULL, |
10edeb5d JH |
2459 | (const char *) |
2460 | (( PL_lex_inwhat == OP_TRANS | |
2461 | ? "tr" | |
2462 | : ( (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) | |
2463 | ? "s" | |
2464 | : "qq")))); | |
79072805 | 2465 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 2466 | } else |
8990e307 | 2467 | SvREFCNT_dec(sv); |
79072805 LW |
2468 | return s; |
2469 | } | |
2470 | ||
ffb4593c NT |
2471 | /* S_intuit_more |
2472 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
2473 | * FALSE otherwise. | |
ffb4593c NT |
2474 | * |
2475 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
2476 | * | |
2477 | * ->[ and ->{ return TRUE | |
2478 | * { and [ outside a pattern are always subscripts, so return TRUE | |
2479 | * if we're outside a pattern and it's not { or [, then return FALSE | |
2480 | * if we're in a pattern and the first char is a { | |
2481 | * {4,5} (any digits around the comma) returns FALSE | |
2482 | * if we're in a pattern and the first char is a [ | |
2483 | * [] returns FALSE | |
2484 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
2485 | * character class or not. It has to deal with things like | |
2486 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
2487 | * anything else returns TRUE | |
2488 | */ | |
2489 | ||
9cbb5ea2 GS |
2490 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
2491 | ||
76e3520e | 2492 | STATIC int |
cea2e8a9 | 2493 | S_intuit_more(pTHX_ register char *s) |
79072805 | 2494 | { |
97aff369 | 2495 | dVAR; |
3280af22 | 2496 | if (PL_lex_brackets) |
79072805 LW |
2497 | return TRUE; |
2498 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
2499 | return TRUE; | |
2500 | if (*s != '{' && *s != '[') | |
2501 | return FALSE; | |
3280af22 | 2502 | if (!PL_lex_inpat) |
79072805 LW |
2503 | return TRUE; |
2504 | ||
2505 | /* In a pattern, so maybe we have {n,m}. */ | |
2506 | if (*s == '{') { | |
2507 | s++; | |
2508 | if (!isDIGIT(*s)) | |
2509 | return TRUE; | |
2510 | while (isDIGIT(*s)) | |
2511 | s++; | |
2512 | if (*s == ',') | |
2513 | s++; | |
2514 | while (isDIGIT(*s)) | |
2515 | s++; | |
2516 | if (*s == '}') | |
2517 | return FALSE; | |
2518 | return TRUE; | |
2519 | ||
2520 | } | |
2521 | ||
2522 | /* On the other hand, maybe we have a character class */ | |
2523 | ||
2524 | s++; | |
2525 | if (*s == ']' || *s == '^') | |
2526 | return FALSE; | |
2527 | else { | |
ffb4593c | 2528 | /* this is terrifying, and it works */ |
79072805 LW |
2529 | int weight = 2; /* let's weigh the evidence */ |
2530 | char seen[256]; | |
f27ffc4a | 2531 | unsigned char un_char = 255, last_un_char; |
9d4ba2ae | 2532 | const char * const send = strchr(s,']'); |
3280af22 | 2533 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
2534 | |
2535 | if (!send) /* has to be an expression */ | |
2536 | return TRUE; | |
2537 | ||
2538 | Zero(seen,256,char); | |
2539 | if (*s == '$') | |
2540 | weight -= 3; | |
2541 | else if (isDIGIT(*s)) { | |
2542 | if (s[1] != ']') { | |
2543 | if (isDIGIT(s[1]) && s[2] == ']') | |
2544 | weight -= 10; | |
2545 | } | |
2546 | else | |
2547 | weight -= 100; | |
2548 | } | |
2549 | for (; s < send; s++) { | |
2550 | last_un_char = un_char; | |
2551 | un_char = (unsigned char)*s; | |
2552 | switch (*s) { | |
2553 | case '@': | |
2554 | case '&': | |
2555 | case '$': | |
2556 | weight -= seen[un_char] * 10; | |
7e2040f0 | 2557 | if (isALNUM_lazy_if(s+1,UTF)) { |
90e5519e | 2558 | int len; |
8903cb82 | 2559 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
90e5519e NC |
2560 | len = (int)strlen(tmpbuf); |
2561 | if (len > 1 && gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PV)) | |
79072805 LW |
2562 | weight -= 100; |
2563 | else | |
2564 | weight -= 10; | |
2565 | } | |
2566 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
2567 | strchr("[#!%*<>()-=",s[1])) { |
2568 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
2569 | weight -= 10; |
2570 | else | |
2571 | weight -= 1; | |
2572 | } | |
2573 | break; | |
2574 | case '\\': | |
2575 | un_char = 254; | |
2576 | if (s[1]) { | |
93a17b20 | 2577 | if (strchr("wds]",s[1])) |
79072805 | 2578 | weight += 100; |
10edeb5d | 2579 | else if (seen[(U8)'\''] || seen[(U8)'"']) |
79072805 | 2580 | weight += 1; |
93a17b20 | 2581 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
2582 | weight += 40; |
2583 | else if (isDIGIT(s[1])) { | |
2584 | weight += 40; | |
2585 | while (s[1] && isDIGIT(s[1])) | |
2586 | s++; | |
2587 | } | |
2588 | } | |
2589 | else | |
2590 | weight += 100; | |
2591 | break; | |
2592 | case '-': | |
2593 | if (s[1] == '\\') | |
2594 | weight += 50; | |
93a17b20 | 2595 | if (strchr("aA01! ",last_un_char)) |
79072805 | 2596 | weight += 30; |
93a17b20 | 2597 | if (strchr("zZ79~",s[1])) |
79072805 | 2598 | weight += 30; |
f27ffc4a GS |
2599 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
2600 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
2601 | break; |
2602 | default: | |
3792a11b NC |
2603 | if (!isALNUM(last_un_char) |
2604 | && !(last_un_char == '$' || last_un_char == '@' | |
2605 | || last_un_char == '&') | |
2606 | && isALPHA(*s) && s[1] && isALPHA(s[1])) { | |
79072805 LW |
2607 | char *d = tmpbuf; |
2608 | while (isALPHA(*s)) | |
2609 | *d++ = *s++; | |
2610 | *d = '\0'; | |
5458a98a | 2611 | if (keyword(tmpbuf, d - tmpbuf, 0)) |
79072805 LW |
2612 | weight -= 150; |
2613 | } | |
2614 | if (un_char == last_un_char + 1) | |
2615 | weight += 5; | |
2616 | weight -= seen[un_char]; | |
2617 | break; | |
2618 | } | |
2619 | seen[un_char]++; | |
2620 | } | |
2621 | if (weight >= 0) /* probably a character class */ | |
2622 | return FALSE; | |
2623 | } | |
2624 | ||
2625 | return TRUE; | |
2626 | } | |
ffed7fef | 2627 | |
ffb4593c NT |
2628 | /* |
2629 | * S_intuit_method | |
2630 | * | |
2631 | * Does all the checking to disambiguate | |
2632 | * foo bar | |
2633 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
2634 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
2635 | * | |
2636 | * First argument is the stuff after the first token, e.g. "bar". | |
2637 | * | |
2638 | * Not a method if bar is a filehandle. | |
2639 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
2640 | * Not a method if it's really "Foo $bar" | |
2641 | * Method if it's "foo $bar" | |
2642 | * Not a method if it's really "print foo $bar" | |
2643 | * Method if it's really "foo package::" (interpreted as package->foo) | |
8f8cf39c | 2644 | * Not a method if bar is known to be a subroutine ("sub bar; foo bar") |
3cb0bbe5 | 2645 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
2646 | * => |
2647 | */ | |
2648 | ||
76e3520e | 2649 | STATIC int |
62d55b22 | 2650 | S_intuit_method(pTHX_ char *start, GV *gv, CV *cv) |
a0d0e21e | 2651 | { |
97aff369 | 2652 | dVAR; |
a0d0e21e | 2653 | char *s = start + (*start == '$'); |
3280af22 | 2654 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
2655 | STRLEN len; |
2656 | GV* indirgv; | |
5db06880 NC |
2657 | #ifdef PERL_MAD |
2658 | int soff; | |
2659 | #endif | |
a0d0e21e LW |
2660 | |
2661 | if (gv) { | |
62d55b22 | 2662 | if (SvTYPE(gv) == SVt_PVGV && GvIO(gv)) |
a0d0e21e | 2663 | return 0; |
62d55b22 NC |
2664 | if (cv) { |
2665 | if (SvPOK(cv)) { | |
2666 | const char *proto = SvPVX_const(cv); | |
2667 | if (proto) { | |
2668 | if (*proto == ';') | |
2669 | proto++; | |
2670 | if (*proto == '*') | |
2671 | return 0; | |
2672 | } | |
b6c543e3 IZ |
2673 | } |
2674 | } else | |
c35e046a | 2675 | gv = NULL; |
a0d0e21e | 2676 | } |
8903cb82 | 2677 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
2678 | /* start is the beginning of the possible filehandle/object, |
2679 | * and s is the end of it | |
2680 | * tmpbuf is a copy of it | |
2681 | */ | |
2682 | ||
a0d0e21e | 2683 | if (*start == '$') { |
3ef1310e RGS |
2684 | if (gv || PL_last_lop_op == OP_PRINT || PL_last_lop_op == OP_SAY || |
2685 | isUPPER(*PL_tokenbuf)) | |
a0d0e21e | 2686 | return 0; |
5db06880 NC |
2687 | #ifdef PERL_MAD |
2688 | len = start - SvPVX(PL_linestr); | |
2689 | #endif | |
29595ff2 | 2690 | s = PEEKSPACE(s); |
f0092767 | 2691 | #ifdef PERL_MAD |
5db06880 NC |
2692 | start = SvPVX(PL_linestr) + len; |
2693 | #endif | |
3280af22 NIS |
2694 | PL_bufptr = start; |
2695 | PL_expect = XREF; | |
a0d0e21e LW |
2696 | return *s == '(' ? FUNCMETH : METHOD; |
2697 | } | |
5458a98a | 2698 | if (!keyword(tmpbuf, len, 0)) { |
c3e0f903 GS |
2699 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
2700 | len -= 2; | |
2701 | tmpbuf[len] = '\0'; | |
5db06880 NC |
2702 | #ifdef PERL_MAD |
2703 | soff = s - SvPVX(PL_linestr); | |
2704 | #endif | |
c3e0f903 GS |
2705 | goto bare_package; |
2706 | } | |
90e5519e | 2707 | indirgv = gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PVCV); |
8ebc5c01 | 2708 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
2709 | return 0; |
2710 | /* filehandle or package name makes it a method */ | |
da51bb9b | 2711 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, 0)) { |
5db06880 NC |
2712 | #ifdef PERL_MAD |
2713 | soff = s - SvPVX(PL_linestr); | |
2714 | #endif | |
29595ff2 | 2715 | s = PEEKSPACE(s); |
3280af22 | 2716 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 2717 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 2718 | bare_package: |
cd81e915 | 2719 | start_force(PL_curforce); |
9ded7720 | 2720 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, |
79cb57f6 | 2721 | newSVpvn(tmpbuf,len)); |
9ded7720 | 2722 | NEXTVAL_NEXTTOKE.opval->op_private = OPpCONST_BARE; |
5db06880 NC |
2723 | if (PL_madskills) |
2724 | curmad('X', newSVpvn(start,SvPVX(PL_linestr) + soff - start)); | |
3280af22 | 2725 | PL_expect = XTERM; |
a0d0e21e | 2726 | force_next(WORD); |
3280af22 | 2727 | PL_bufptr = s; |
5db06880 NC |
2728 | #ifdef PERL_MAD |
2729 | PL_bufptr = SvPVX(PL_linestr) + soff; /* restart before space */ | |
2730 | #endif | |
a0d0e21e LW |
2731 | return *s == '(' ? FUNCMETH : METHOD; |
2732 | } | |
2733 | } | |
2734 | return 0; | |
2735 | } | |
2736 | ||
ffb4593c NT |
2737 | /* |
2738 | * S_incl_perldb | |
2739 | * Return a string of Perl code to load the debugger. If PERL5DB | |
2740 | * is set, it will return the contents of that, otherwise a | |
2741 | * compile-time require of perl5db.pl. | |
2742 | */ | |
2743 | ||
bfed75c6 | 2744 | STATIC const char* |
cea2e8a9 | 2745 | S_incl_perldb(pTHX) |
a0d0e21e | 2746 | { |
97aff369 | 2747 | dVAR; |
3280af22 | 2748 | if (PL_perldb) { |
9d4ba2ae | 2749 | const char * const pdb = PerlEnv_getenv("PERL5DB"); |
a0d0e21e LW |
2750 | |
2751 | if (pdb) | |
2752 | return pdb; | |
93189314 | 2753 | SETERRNO(0,SS_NORMAL); |
a0d0e21e LW |
2754 | return "BEGIN { require 'perl5db.pl' }"; |
2755 | } | |
2756 | return ""; | |
2757 | } | |
2758 | ||
2759 | ||
16d20bd9 | 2760 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 2761 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
2762 | * Note that the filter function only applies to the current source file |
2763 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
2764 | * | |
2765 | * The datasv parameter (which may be NULL) can be used to pass | |
2766 | * private data to this instance of the filter. The filter function | |
2767 | * can recover the SV using the FILTER_DATA macro and use it to | |
2768 | * store private buffers and state information. | |
2769 | * | |
2770 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 2771 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 2772 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
2773 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
2774 | * private use must be set using malloc'd pointers. | |
2775 | */ | |
16d20bd9 AD |
2776 | |
2777 | SV * | |
864dbfa3 | 2778 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 2779 | { |
97aff369 | 2780 | dVAR; |
f4c556ac | 2781 | if (!funcp) |
a0714e2c | 2782 | return NULL; |
f4c556ac | 2783 | |
5486870f DM |
2784 | if (!PL_parser) |
2785 | return NULL; | |
2786 | ||
3280af22 NIS |
2787 | if (!PL_rsfp_filters) |
2788 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 2789 | if (!datasv) |
561b68a9 | 2790 | datasv = newSV(0); |
862a34c6 | 2791 | SvUPGRADE(datasv, SVt_PVIO); |
8141890a | 2792 | IoANY(datasv) = FPTR2DPTR(void *, funcp); /* stash funcp into spare field */ |
e0c19803 | 2793 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac | 2794 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
55662e27 JH |
2795 | FPTR2DPTR(void *, IoANY(datasv)), |
2796 | SvPV_nolen(datasv))); | |
3280af22 NIS |
2797 | av_unshift(PL_rsfp_filters, 1); |
2798 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
2799 | return(datasv); |
2800 | } | |
4e553d73 | 2801 | |
16d20bd9 AD |
2802 | |
2803 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 2804 | void |
864dbfa3 | 2805 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 2806 | { |
97aff369 | 2807 | dVAR; |
e0c19803 | 2808 | SV *datasv; |
24801a4b | 2809 | |
33073adb | 2810 | #ifdef DEBUGGING |
55662e27 JH |
2811 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", |
2812 | FPTR2DPTR(void*, funcp))); | |
33073adb | 2813 | #endif |
5486870f | 2814 | if (!PL_parser || !PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
2815 | return; |
2816 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 2817 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
8141890a | 2818 | if (IoANY(datasv) == FPTR2DPTR(void *, funcp)) { |
e0c19803 | 2819 | IoFLAGS(datasv) &= ~IOf_FAKE_DIRP; |
4755096e | 2820 | IoANY(datasv) = (void *)NULL; |
3280af22 | 2821 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 2822 | |
16d20bd9 AD |
2823 | return; |
2824 | } | |
2825 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 2826 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
2827 | } |
2828 | ||
2829 | ||
1de9afcd RGS |
2830 | /* Invoke the idxth filter function for the current rsfp. */ |
2831 | /* maxlen 0 = read one text line */ | |
16d20bd9 | 2832 | I32 |
864dbfa3 | 2833 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
a0d0e21e | 2834 | { |
97aff369 | 2835 | dVAR; |
16d20bd9 AD |
2836 | filter_t funcp; |
2837 | SV *datasv = NULL; | |
f482118e NC |
2838 | /* This API is bad. It should have been using unsigned int for maxlen. |
2839 | Not sure if we want to change the API, but if not we should sanity | |
2840 | check the value here. */ | |
39cd7a59 NC |
2841 | const unsigned int correct_length |
2842 | = maxlen < 0 ? | |
2843 | #ifdef PERL_MICRO | |
2844 | 0x7FFFFFFF | |
2845 | #else | |
2846 | INT_MAX | |
2847 | #endif | |
2848 | : maxlen; | |
e50aee73 | 2849 | |
5486870f | 2850 | if (!PL_parser || !PL_rsfp_filters) |
16d20bd9 | 2851 | return -1; |
1de9afcd | 2852 | if (idx > AvFILLp(PL_rsfp_filters)) { /* Any more filters? */ |
16d20bd9 AD |
2853 | /* Provide a default input filter to make life easy. */ |
2854 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
2855 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2856 | "filter_read %d: from rsfp\n", idx)); | |
f482118e | 2857 | if (correct_length) { |
16d20bd9 AD |
2858 | /* Want a block */ |
2859 | int len ; | |
f54cb97a | 2860 | const int old_len = SvCUR(buf_sv); |
16d20bd9 AD |
2861 | |
2862 | /* ensure buf_sv is large enough */ | |
f482118e NC |
2863 | SvGROW(buf_sv, (STRLEN)(old_len + correct_length)) ; |
2864 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, | |
2865 | correct_length)) <= 0) { | |
3280af22 | 2866 | if (PerlIO_error(PL_rsfp)) |
37120919 AD |
2867 | return -1; /* error */ |
2868 | else | |
2869 | return 0 ; /* end of file */ | |
2870 | } | |
16d20bd9 AD |
2871 | SvCUR_set(buf_sv, old_len + len) ; |
2872 | } else { | |
2873 | /* Want a line */ | |
3280af22 NIS |
2874 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
2875 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
2876 | return -1; /* error */ |
2877 | else | |
2878 | return 0 ; /* end of file */ | |
2879 | } | |
16d20bd9 AD |
2880 | } |
2881 | return SvCUR(buf_sv); | |
2882 | } | |
2883 | /* Skip this filter slot if filter has been deleted */ | |
1de9afcd | 2884 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef) { |
f4c556ac GS |
2885 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2886 | "filter_read %d: skipped (filter deleted)\n", | |
2887 | idx)); | |
f482118e | 2888 | return FILTER_READ(idx+1, buf_sv, correct_length); /* recurse */ |
16d20bd9 AD |
2889 | } |
2890 | /* Get function pointer hidden within datasv */ | |
8141890a | 2891 | funcp = DPTR2FPTR(filter_t, IoANY(datasv)); |
f4c556ac GS |
2892 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2893 | "filter_read %d: via function %p (%s)\n", | |
ca0270c4 | 2894 | idx, (void*)datasv, SvPV_nolen_const(datasv))); |
16d20bd9 AD |
2895 | /* Call function. The function is expected to */ |
2896 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 2897 | /* Return: <0:error, =0:eof, >0:not eof */ |
f482118e | 2898 | return (*funcp)(aTHX_ idx, buf_sv, correct_length); |
16d20bd9 AD |
2899 | } |
2900 | ||
76e3520e | 2901 | STATIC char * |
cea2e8a9 | 2902 | S_filter_gets(pTHX_ register SV *sv, register PerlIO *fp, STRLEN append) |
16d20bd9 | 2903 | { |
97aff369 | 2904 | dVAR; |
c39cd008 | 2905 | #ifdef PERL_CR_FILTER |
3280af22 | 2906 | if (!PL_rsfp_filters) { |
c39cd008 | 2907 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
2908 | } |
2909 | #endif | |
3280af22 | 2910 | if (PL_rsfp_filters) { |
55497cff | 2911 | if (!append) |
2912 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
2913 | if (FILTER_READ(0, sv, 0) > 0) |
2914 | return ( SvPVX(sv) ) ; | |
2915 | else | |
bd61b366 | 2916 | return NULL ; |
16d20bd9 | 2917 | } |
9d116dd7 | 2918 | else |
fd049845 | 2919 | return (sv_gets(sv, fp, append)); |
a0d0e21e LW |
2920 | } |
2921 | ||
01ec43d0 | 2922 | STATIC HV * |
7fc63493 | 2923 | S_find_in_my_stash(pTHX_ const char *pkgname, I32 len) |
def3634b | 2924 | { |
97aff369 | 2925 | dVAR; |
def3634b GS |
2926 | GV *gv; |
2927 | ||
01ec43d0 | 2928 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
2929 | return PL_curstash; |
2930 | ||
2931 | if (len > 2 && | |
2932 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
90e5519e | 2933 | (gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVHV))) |
01ec43d0 GS |
2934 | { |
2935 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
2936 | } |
2937 | ||
2938 | /* use constant CLASS => 'MyClass' */ | |
c35e046a AL |
2939 | gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVCV); |
2940 | if (gv && GvCV(gv)) { | |
2941 | SV * const sv = cv_const_sv(GvCV(gv)); | |
2942 | if (sv) | |
83003860 | 2943 | pkgname = SvPV_nolen_const(sv); |
def3634b GS |
2944 | } |
2945 | ||
da51bb9b | 2946 | return gv_stashpv(pkgname, 0); |
def3634b | 2947 | } |
a0d0e21e | 2948 | |
e3f73d4e RGS |
2949 | /* |
2950 | * S_readpipe_override | |
2951 | * Check whether readpipe() is overriden, and generates the appropriate | |
2952 | * optree, provided sublex_start() is called afterwards. | |
2953 | */ | |
2954 | STATIC void | |
1d51329b | 2955 | S_readpipe_override(pTHX) |
e3f73d4e RGS |
2956 | { |
2957 | GV **gvp; | |
2958 | GV *gv_readpipe = gv_fetchpvs("readpipe", GV_NOTQUAL, SVt_PVCV); | |
2959 | yylval.ival = OP_BACKTICK; | |
2960 | if ((gv_readpipe | |
2961 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe)) | |
2962 | || | |
2963 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readpipe", FALSE)) | |
d5e716f5 | 2964 | && (gv_readpipe = *gvp) && isGV_with_GP(gv_readpipe) |
e3f73d4e RGS |
2965 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe))) |
2966 | { | |
2967 | PL_lex_op = (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2968 | append_elem(OP_LIST, | |
2969 | newSVOP(OP_CONST, 0, &PL_sv_undef), /* value will be read later */ | |
2970 | newCVREF(0, newGVOP(OP_GV, 0, gv_readpipe)))); | |
2971 | } | |
2972 | else { | |
2973 | set_csh(); | |
2974 | } | |
2975 | } | |
2976 | ||
5db06880 NC |
2977 | #ifdef PERL_MAD |
2978 | /* | |
2979 | * Perl_madlex | |
2980 | * The intent of this yylex wrapper is to minimize the changes to the | |
2981 | * tokener when we aren't interested in collecting madprops. It remains | |
2982 | * to be seen how successful this strategy will be... | |
2983 | */ | |
2984 | ||
2985 | int | |
2986 | Perl_madlex(pTHX) | |
2987 | { | |
2988 | int optype; | |
2989 | char *s = PL_bufptr; | |
2990 | ||
cd81e915 NC |
2991 | /* make sure PL_thiswhite is initialized */ |
2992 | PL_thiswhite = 0; | |
2993 | PL_thismad = 0; | |
5db06880 | 2994 | |
cd81e915 | 2995 | /* just do what yylex would do on pending identifier; leave PL_thiswhite alone */ |
5db06880 NC |
2996 | if (PL_pending_ident) |
2997 | return S_pending_ident(aTHX); | |
2998 | ||
2999 | /* previous token ate up our whitespace? */ | |
cd81e915 NC |
3000 | if (!PL_lasttoke && PL_nextwhite) { |
3001 | PL_thiswhite = PL_nextwhite; | |
3002 | PL_nextwhite = 0; | |
5db06880 NC |
3003 | } |
3004 | ||
3005 | /* isolate the token, and figure out where it is without whitespace */ | |
cd81e915 NC |
3006 | PL_realtokenstart = -1; |
3007 | PL_thistoken = 0; | |
5db06880 NC |
3008 | optype = yylex(); |
3009 | s = PL_bufptr; | |
cd81e915 | 3010 | assert(PL_curforce < 0); |
5db06880 | 3011 | |
cd81e915 NC |
3012 | if (!PL_thismad || PL_thismad->mad_key == '^') { /* not forced already? */ |
3013 | if (!PL_thistoken) { | |
3014 | if (PL_realtokenstart < 0 || !CopLINE(PL_curcop)) | |
6b29d1f5 | 3015 | PL_thistoken = newSVpvs(""); |
5db06880 | 3016 | else { |
c35e046a | 3017 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 | 3018 | PL_thistoken = newSVpvn(tstart, s - tstart); |
5db06880 NC |
3019 | } |
3020 | } | |
cd81e915 NC |
3021 | if (PL_thismad) /* install head */ |
3022 | CURMAD('X', PL_thistoken); | |
5db06880 NC |
3023 | } |
3024 | ||
3025 | /* last whitespace of a sublex? */ | |
cd81e915 NC |
3026 | if (optype == ')' && PL_endwhite) { |
3027 | CURMAD('X', PL_endwhite); | |
5db06880 NC |
3028 | } |
3029 | ||
cd81e915 | 3030 | if (!PL_thismad) { |
5db06880 NC |
3031 | |
3032 | /* if no whitespace and we're at EOF, bail. Otherwise fake EOF below. */ | |
cd81e915 NC |
3033 | if (!PL_thiswhite && !PL_endwhite && !optype) { |
3034 | sv_free(PL_thistoken); | |
3035 | PL_thistoken = 0; | |
5db06880 NC |
3036 | return 0; |
3037 | } | |
3038 | ||
3039 | /* put off final whitespace till peg */ | |
3040 | if (optype == ';' && !PL_rsfp) { | |
cd81e915 NC |
3041 | PL_nextwhite = PL_thiswhite; |
3042 | PL_thiswhite = 0; | |
5db06880 | 3043 | } |
cd81e915 NC |
3044 | else if (PL_thisopen) { |
3045 | CURMAD('q', PL_thisopen); | |
3046 | if (PL_thistoken) | |
3047 | sv_free(PL_thistoken); | |
3048 | PL_thistoken = 0; | |
5db06880 NC |
3049 | } |
3050 | else { | |
3051 | /* Store actual token text as madprop X */ | |
cd81e915 | 3052 | CURMAD('X', PL_thistoken); |
5db06880 NC |
3053 | } |
3054 | ||
cd81e915 | 3055 | if (PL_thiswhite) { |
5db06880 | 3056 | /* add preceding whitespace as madprop _ */ |
cd81e915 | 3057 | CURMAD('_', PL_thiswhite); |
5db06880 NC |
3058 | } |
3059 | ||
cd81e915 | 3060 | if (PL_thisstuff) { |
5db06880 | 3061 | /* add quoted material as madprop = */ |
cd81e915 | 3062 | CURMAD('=', PL_thisstuff); |
5db06880 NC |
3063 | } |
3064 | ||
cd81e915 | 3065 | if (PL_thisclose) { |
5db06880 | 3066 | /* add terminating quote as madprop Q */ |
cd81e915 | 3067 | CURMAD('Q', PL_thisclose); |
5db06880 NC |
3068 | } |
3069 | } | |
3070 | ||
3071 | /* special processing based on optype */ | |
3072 | ||
3073 | switch (optype) { | |
3074 | ||
3075 | /* opval doesn't need a TOKEN since it can already store mp */ | |
3076 | case WORD: | |
3077 | case METHOD: | |
3078 | case FUNCMETH: | |
3079 | case THING: | |
3080 | case PMFUNC: | |
3081 | case PRIVATEREF: | |
3082 | case FUNC0SUB: | |
3083 | case UNIOPSUB: | |
3084 | case LSTOPSUB: | |
3085 | if (yylval.opval) | |
cd81e915 NC |
3086 | append_madprops(PL_thismad, yylval.opval, 0); |
3087 | PL_thismad = 0; | |
5db06880 NC |
3088 | return optype; |
3089 | ||
3090 | /* fake EOF */ | |
3091 | case 0: | |
3092 | optype = PEG; | |
cd81e915 NC |
3093 | if (PL_endwhite) { |
3094 | addmad(newMADsv('p', PL_endwhite), &PL_thismad, 0); | |
3095 | PL_endwhite = 0; | |
5db06880 NC |
3096 | } |
3097 | break; | |
3098 | ||
3099 | case ']': | |
3100 | case '}': | |
cd81e915 | 3101 | if (PL_faketokens) |
5db06880 NC |
3102 | break; |
3103 | /* remember any fake bracket that lexer is about to discard */ | |
3104 | if (PL_lex_brackets == 1 && | |
3105 | ((expectation)PL_lex_brackstack[0] & XFAKEBRACK)) | |
3106 | { | |
3107 | s = PL_bufptr; | |
3108 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
3109 | s++; | |
3110 | if (*s == '}') { | |
cd81e915 NC |
3111 | PL_thiswhite = newSVpvn(PL_bufptr, ++s - PL_bufptr); |
3112 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3113 | PL_thiswhite = 0; | |
5db06880 NC |
3114 | PL_bufptr = s - 1; |
3115 | break; /* don't bother looking for trailing comment */ | |
3116 | } | |
3117 | else | |
3118 | s = PL_bufptr; | |
3119 | } | |
3120 | if (optype == ']') | |
3121 | break; | |
3122 | /* FALLTHROUGH */ | |
3123 | ||
3124 | /* attach a trailing comment to its statement instead of next token */ | |
3125 | case ';': | |
cd81e915 | 3126 | if (PL_faketokens) |
5db06880 NC |
3127 | break; |
3128 | if (PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == optype) { | |
3129 | s = PL_bufptr; | |
3130 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
3131 | s++; | |
3132 | if (*s == '\n' || *s == '#') { | |
3133 | while (s < PL_bufend && *s != '\n') | |
3134 | s++; | |
3135 | if (s < PL_bufend) | |
3136 | s++; | |
cd81e915 NC |
3137 | PL_thiswhite = newSVpvn(PL_bufptr, s - PL_bufptr); |
3138 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3139 | PL_thiswhite = 0; | |
5db06880 NC |
3140 | PL_bufptr = s; |
3141 | } | |
3142 | } | |
3143 | break; | |
3144 | ||
3145 | /* pval */ | |
3146 | case LABEL: | |
3147 | break; | |
3148 | ||
3149 | /* ival */ | |
3150 | default: | |
3151 | break; | |
3152 | ||
3153 | } | |
3154 | ||
3155 | /* Create new token struct. Note: opvals return early above. */ | |
cd81e915 NC |
3156 | yylval.tkval = newTOKEN(optype, yylval, PL_thismad); |
3157 | PL_thismad = 0; | |
5db06880 NC |
3158 | return optype; |
3159 | } | |
3160 | #endif | |
3161 | ||
468aa647 | 3162 | STATIC char * |
cc6ed77d | 3163 | S_tokenize_use(pTHX_ int is_use, char *s) { |
97aff369 | 3164 | dVAR; |
468aa647 RGS |
3165 | if (PL_expect != XSTATE) |
3166 | yyerror(Perl_form(aTHX_ "\"%s\" not allowed in expression", | |
3167 | is_use ? "use" : "no")); | |
29595ff2 | 3168 | s = SKIPSPACE1(s); |
468aa647 RGS |
3169 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { |
3170 | s = force_version(s, TRUE); | |
29595ff2 | 3171 | if (*s == ';' || (s = SKIPSPACE1(s), *s == ';')) { |
cd81e915 | 3172 | start_force(PL_curforce); |
9ded7720 | 3173 | NEXTVAL_NEXTTOKE.opval = NULL; |
468aa647 RGS |
3174 | force_next(WORD); |
3175 | } | |
3176 | else if (*s == 'v') { | |
3177 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3178 | s = force_version(s, FALSE); | |
3179 | } | |
3180 | } | |
3181 | else { | |
3182 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3183 | s = force_version(s, FALSE); | |
3184 | } | |
3185 | yylval.ival = is_use; | |
3186 | return s; | |
3187 | } | |
748a9306 | 3188 | #ifdef DEBUGGING |
27da23d5 | 3189 | static const char* const exp_name[] = |
09bef843 | 3190 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
27308ded | 3191 | "ATTRTERM", "TERMBLOCK", "TERMORDORDOR" |
09bef843 | 3192 | }; |
748a9306 | 3193 | #endif |
463ee0b2 | 3194 | |
02aa26ce NT |
3195 | /* |
3196 | yylex | |
3197 | ||
3198 | Works out what to call the token just pulled out of the input | |
3199 | stream. The yacc parser takes care of taking the ops we return and | |
3200 | stitching them into a tree. | |
3201 | ||
3202 | Returns: | |
3203 | PRIVATEREF | |
3204 | ||
3205 | Structure: | |
3206 | if read an identifier | |
3207 | if we're in a my declaration | |
3208 | croak if they tried to say my($foo::bar) | |
3209 | build the ops for a my() declaration | |
3210 | if it's an access to a my() variable | |
3211 | are we in a sort block? | |
3212 | croak if my($a); $a <=> $b | |
3213 | build ops for access to a my() variable | |
3214 | if in a dq string, and they've said @foo and we can't find @foo | |
3215 | croak | |
3216 | build ops for a bareword | |
3217 | if we already built the token before, use it. | |
3218 | */ | |
3219 | ||
20141f0e | 3220 | |
dba4d153 JH |
3221 | #ifdef __SC__ |
3222 | #pragma segment Perl_yylex | |
3223 | #endif | |
dba4d153 | 3224 | int |
dba4d153 | 3225 | Perl_yylex(pTHX) |
20141f0e | 3226 | { |
97aff369 | 3227 | dVAR; |
3afc138a | 3228 | register char *s = PL_bufptr; |
378cc40b | 3229 | register char *d; |
463ee0b2 | 3230 | STRLEN len; |
aa7440fb | 3231 | bool bof = FALSE; |
a687059c | 3232 | |
10edeb5d JH |
3233 | /* orig_keyword, gvp, and gv are initialized here because |
3234 | * jump to the label just_a_word_zero can bypass their | |
3235 | * initialization later. */ | |
3236 | I32 orig_keyword = 0; | |
3237 | GV *gv = NULL; | |
3238 | GV **gvp = NULL; | |
3239 | ||
bbf60fe6 | 3240 | DEBUG_T( { |
396482e1 | 3241 | SV* tmp = newSVpvs(""); |
b6007c36 DM |
3242 | PerlIO_printf(Perl_debug_log, "### %"IVdf":LEX_%s/X%s %s\n", |
3243 | (IV)CopLINE(PL_curcop), | |
3244 | lex_state_names[PL_lex_state], | |
3245 | exp_name[PL_expect], | |
3246 | pv_display(tmp, s, strlen(s), 0, 60)); | |
3247 | SvREFCNT_dec(tmp); | |
bbf60fe6 | 3248 | } ); |
02aa26ce | 3249 | /* check if there's an identifier for us to look at */ |
ba979b31 | 3250 | if (PL_pending_ident) |
bbf60fe6 | 3251 | return REPORT(S_pending_ident(aTHX)); |
bbce6d69 | 3252 | |
02aa26ce NT |
3253 | /* no identifier pending identification */ |
3254 | ||
3280af22 | 3255 | switch (PL_lex_state) { |
79072805 LW |
3256 | #ifdef COMMENTARY |
3257 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
3258 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
3259 | break; | |
3260 | #endif | |
3261 | ||
09bef843 | 3262 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 3263 | case LEX_KNOWNEXT: |
5db06880 NC |
3264 | #ifdef PERL_MAD |
3265 | PL_lasttoke--; | |
3266 | yylval = PL_nexttoke[PL_lasttoke].next_val; | |
3267 | if (PL_madskills) { | |
cd81e915 | 3268 | PL_thismad = PL_nexttoke[PL_lasttoke].next_mad; |
5db06880 | 3269 | PL_nexttoke[PL_lasttoke].next_mad = 0; |
cd81e915 NC |
3270 | if (PL_thismad && PL_thismad->mad_key == '_') { |
3271 | PL_thiswhite = (SV*)PL_thismad->mad_val; | |
3272 | PL_thismad->mad_val = 0; | |
3273 | mad_free(PL_thismad); | |
3274 | PL_thismad = 0; | |
5db06880 NC |
3275 | } |
3276 | } | |
3277 | if (!PL_lasttoke) { | |
3278 | PL_lex_state = PL_lex_defer; | |
3279 | PL_expect = PL_lex_expect; | |
3280 | PL_lex_defer = LEX_NORMAL; | |
3281 | if (!PL_nexttoke[PL_lasttoke].next_type) | |
3282 | return yylex(); | |
3283 | } | |
3284 | #else | |
3280af22 | 3285 | PL_nexttoke--; |
5db06880 | 3286 | yylval = PL_nextval[PL_nexttoke]; |
3280af22 NIS |
3287 | if (!PL_nexttoke) { |
3288 | PL_lex_state = PL_lex_defer; | |
3289 | PL_expect = PL_lex_expect; | |
3290 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 3291 | } |
5db06880 NC |
3292 | #endif |
3293 | #ifdef PERL_MAD | |
3294 | /* FIXME - can these be merged? */ | |
3295 | return(PL_nexttoke[PL_lasttoke].next_type); | |
3296 | #else | |
bbf60fe6 | 3297 | return REPORT(PL_nexttype[PL_nexttoke]); |
5db06880 | 3298 | #endif |
79072805 | 3299 | |
02aa26ce | 3300 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 3301 | when we get here, PL_bufptr is at the \ |
02aa26ce | 3302 | */ |
79072805 LW |
3303 | case LEX_INTERPCASEMOD: |
3304 | #ifdef DEBUGGING | |
3280af22 | 3305 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 3306 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 3307 | #endif |
02aa26ce | 3308 | /* handle \E or end of string */ |
3280af22 | 3309 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
02aa26ce | 3310 | /* if at a \E */ |
3280af22 | 3311 | if (PL_lex_casemods) { |
f54cb97a | 3312 | const char oldmod = PL_lex_casestack[--PL_lex_casemods]; |
3280af22 | 3313 | PL_lex_casestack[PL_lex_casemods] = '\0'; |
02aa26ce | 3314 | |
3792a11b NC |
3315 | if (PL_bufptr != PL_bufend |
3316 | && (oldmod == 'L' || oldmod == 'U' || oldmod == 'Q')) { | |
3280af22 NIS |
3317 | PL_bufptr += 2; |
3318 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3319 | #ifdef PERL_MAD |
3320 | if (PL_madskills) | |
6b29d1f5 | 3321 | PL_thistoken = newSVpvs("\\E"); |
5db06880 | 3322 | #endif |
a0d0e21e | 3323 | } |
bbf60fe6 | 3324 | return REPORT(')'); |
79072805 | 3325 | } |
5db06880 NC |
3326 | #ifdef PERL_MAD |
3327 | while (PL_bufptr != PL_bufend && | |
3328 | PL_bufptr[0] == '\\' && PL_bufptr[1] == 'E') { | |
cd81e915 | 3329 | if (!PL_thiswhite) |
6b29d1f5 | 3330 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3331 | sv_catpvn(PL_thiswhite, PL_bufptr, 2); |
5db06880 NC |
3332 | PL_bufptr += 2; |
3333 | } | |
3334 | #else | |
3280af22 NIS |
3335 | if (PL_bufptr != PL_bufend) |
3336 | PL_bufptr += 2; | |
5db06880 | 3337 | #endif |
3280af22 | 3338 | PL_lex_state = LEX_INTERPCONCAT; |
cea2e8a9 | 3339 | return yylex(); |
79072805 LW |
3340 | } |
3341 | else { | |
607df283 | 3342 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3343 | "### Saw case modifier\n"); }); |
3280af22 | 3344 | s = PL_bufptr + 1; |
6e909404 | 3345 | if (s[1] == '\\' && s[2] == 'E') { |
5db06880 | 3346 | #ifdef PERL_MAD |
cd81e915 | 3347 | if (!PL_thiswhite) |
6b29d1f5 | 3348 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3349 | sv_catpvn(PL_thiswhite, PL_bufptr, 4); |
5db06880 | 3350 | #endif |
89122651 | 3351 | PL_bufptr = s + 3; |
6e909404 JH |
3352 | PL_lex_state = LEX_INTERPCONCAT; |
3353 | return yylex(); | |
a0d0e21e | 3354 | } |
6e909404 | 3355 | else { |
90771dc0 | 3356 | I32 tmp; |
5db06880 NC |
3357 | if (!PL_madskills) /* when just compiling don't need correct */ |
3358 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
3359 | tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */ | |
3792a11b | 3360 | if ((*s == 'L' || *s == 'U') && |
6e909404 JH |
3361 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) { |
3362 | PL_lex_casestack[--PL_lex_casemods] = '\0'; | |
bbf60fe6 | 3363 | return REPORT(')'); |
6e909404 JH |
3364 | } |
3365 | if (PL_lex_casemods > 10) | |
3366 | Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
3367 | PL_lex_casestack[PL_lex_casemods++] = *s; | |
3368 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
3369 | PL_lex_state = LEX_INTERPCONCAT; | |
cd81e915 | 3370 | start_force(PL_curforce); |
9ded7720 | 3371 | NEXTVAL_NEXTTOKE.ival = 0; |
6e909404 | 3372 | force_next('('); |
cd81e915 | 3373 | start_force(PL_curforce); |
6e909404 | 3374 | if (*s == 'l') |
9ded7720 | 3375 | NEXTVAL_NEXTTOKE.ival = OP_LCFIRST; |
6e909404 | 3376 | else if (*s == 'u') |
9ded7720 | 3377 | NEXTVAL_NEXTTOKE.ival = OP_UCFIRST; |
6e909404 | 3378 | else if (*s == 'L') |
9ded7720 | 3379 | NEXTVAL_NEXTTOKE.ival = OP_LC; |
6e909404 | 3380 | else if (*s == 'U') |
9ded7720 | 3381 | NEXTVAL_NEXTTOKE.ival = OP_UC; |
6e909404 | 3382 | else if (*s == 'Q') |
9ded7720 | 3383 | NEXTVAL_NEXTTOKE.ival = OP_QUOTEMETA; |
6e909404 JH |
3384 | else |
3385 | Perl_croak(aTHX_ "panic: yylex"); | |
5db06880 | 3386 | if (PL_madskills) { |
6b29d1f5 | 3387 | SV* const tmpsv = newSVpvs(""); |
5db06880 NC |
3388 | Perl_sv_catpvf(aTHX_ tmpsv, "\\%c", *s); |
3389 | curmad('_', tmpsv); | |
3390 | } | |
6e909404 | 3391 | PL_bufptr = s + 1; |
a0d0e21e | 3392 | } |
79072805 | 3393 | force_next(FUNC); |
3280af22 NIS |
3394 | if (PL_lex_starts) { |
3395 | s = PL_bufptr; | |
3396 | PL_lex_starts = 0; | |
5db06880 NC |
3397 | #ifdef PERL_MAD |
3398 | if (PL_madskills) { | |
cd81e915 NC |
3399 | if (PL_thistoken) |
3400 | sv_free(PL_thistoken); | |
6b29d1f5 | 3401 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3402 | } |
3403 | #endif | |
131b3ad0 DM |
3404 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3405 | if (PL_lex_casemods == 1 && PL_lex_inpat) | |
3406 | OPERATOR(','); | |
3407 | else | |
3408 | Aop(OP_CONCAT); | |
79072805 LW |
3409 | } |
3410 | else | |
cea2e8a9 | 3411 | return yylex(); |
79072805 LW |
3412 | } |
3413 | ||
55497cff | 3414 | case LEX_INTERPPUSH: |
bbf60fe6 | 3415 | return REPORT(sublex_push()); |
55497cff | 3416 | |
79072805 | 3417 | case LEX_INTERPSTART: |
3280af22 | 3418 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3419 | return REPORT(sublex_done()); |
607df283 | 3420 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3421 | "### Interpolated variable\n"); }); |
3280af22 NIS |
3422 | PL_expect = XTERM; |
3423 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
3424 | PL_lex_state = LEX_INTERPNORMAL; | |
3425 | if (PL_lex_dojoin) { | |
cd81e915 | 3426 | start_force(PL_curforce); |
9ded7720 | 3427 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3428 | force_next(','); |
cd81e915 | 3429 | start_force(PL_curforce); |
a0d0e21e | 3430 | force_ident("\"", '$'); |
cd81e915 | 3431 | start_force(PL_curforce); |
9ded7720 | 3432 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3433 | force_next('$'); |
cd81e915 | 3434 | start_force(PL_curforce); |
9ded7720 | 3435 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3436 | force_next('('); |
cd81e915 | 3437 | start_force(PL_curforce); |
9ded7720 | 3438 | NEXTVAL_NEXTTOKE.ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
3439 | force_next(FUNC); |
3440 | } | |
3280af22 NIS |
3441 | if (PL_lex_starts++) { |
3442 | s = PL_bufptr; | |
5db06880 NC |
3443 | #ifdef PERL_MAD |
3444 | if (PL_madskills) { | |
cd81e915 NC |
3445 | if (PL_thistoken) |
3446 | sv_free(PL_thistoken); | |
6b29d1f5 | 3447 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3448 | } |
3449 | #endif | |
131b3ad0 DM |
3450 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3451 | if (!PL_lex_casemods && PL_lex_inpat) | |
3452 | OPERATOR(','); | |
3453 | else | |
3454 | Aop(OP_CONCAT); | |
79072805 | 3455 | } |
cea2e8a9 | 3456 | return yylex(); |
79072805 LW |
3457 | |
3458 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
3459 | if (intuit_more(PL_bufptr)) { |
3460 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
3461 | break; |
3462 | } | |
3463 | /* FALL THROUGH */ | |
3464 | ||
3465 | case LEX_INTERPEND: | |
3280af22 NIS |
3466 | if (PL_lex_dojoin) { |
3467 | PL_lex_dojoin = FALSE; | |
3468 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3469 | #ifdef PERL_MAD |
3470 | if (PL_madskills) { | |
cd81e915 NC |
3471 | if (PL_thistoken) |
3472 | sv_free(PL_thistoken); | |
6b29d1f5 | 3473 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3474 | } |
3475 | #endif | |
bbf60fe6 | 3476 | return REPORT(')'); |
79072805 | 3477 | } |
43a16006 | 3478 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 3479 | && SvEVALED(PL_lex_repl)) |
43a16006 | 3480 | { |
e9fa98b2 | 3481 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 3482 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
a0714e2c | 3483 | PL_lex_repl = NULL; |
e9fa98b2 | 3484 | } |
79072805 LW |
3485 | /* FALLTHROUGH */ |
3486 | case LEX_INTERPCONCAT: | |
3487 | #ifdef DEBUGGING | |
3280af22 | 3488 | if (PL_lex_brackets) |
cea2e8a9 | 3489 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 3490 | #endif |
3280af22 | 3491 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3492 | return REPORT(sublex_done()); |
79072805 | 3493 | |
3280af22 NIS |
3494 | if (SvIVX(PL_linestr) == '\'') { |
3495 | SV *sv = newSVsv(PL_linestr); | |
3496 | if (!PL_lex_inpat) | |
76e3520e | 3497 | sv = tokeq(sv); |
3280af22 | 3498 | else if ( PL_hints & HINT_NEW_RE ) |
b3ac6de7 | 3499 | sv = new_constant(NULL, 0, "qr", sv, sv, "q"); |
79072805 | 3500 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 3501 | s = PL_bufend; |
79072805 LW |
3502 | } |
3503 | else { | |
3280af22 | 3504 | s = scan_const(PL_bufptr); |
79072805 | 3505 | if (*s == '\\') |
3280af22 | 3506 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 3507 | else |
3280af22 | 3508 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
3509 | } |
3510 | ||
3280af22 | 3511 | if (s != PL_bufptr) { |
cd81e915 | 3512 | start_force(PL_curforce); |
5db06880 NC |
3513 | if (PL_madskills) { |
3514 | curmad('X', newSVpvn(PL_bufptr,s-PL_bufptr)); | |
3515 | } | |
9ded7720 | 3516 | NEXTVAL_NEXTTOKE = yylval; |
3280af22 | 3517 | PL_expect = XTERM; |
79072805 | 3518 | force_next(THING); |
131b3ad0 | 3519 | if (PL_lex_starts++) { |
5db06880 NC |
3520 | #ifdef PERL_MAD |
3521 | if (PL_madskills) { | |
cd81e915 NC |
3522 | if (PL_thistoken) |
3523 | sv_free(PL_thistoken); | |
6b29d1f5 | 3524 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3525 | } |
3526 | #endif | |
131b3ad0 DM |
3527 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3528 | if (!PL_lex_casemods && PL_lex_inpat) | |
3529 | OPERATOR(','); | |
3530 | else | |
3531 | Aop(OP_CONCAT); | |
3532 | } | |
79072805 | 3533 | else { |
3280af22 | 3534 | PL_bufptr = s; |
cea2e8a9 | 3535 | return yylex(); |
79072805 LW |
3536 | } |
3537 | } | |
3538 | ||
cea2e8a9 | 3539 | return yylex(); |
a0d0e21e | 3540 | case LEX_FORMLINE: |
3280af22 NIS |
3541 | PL_lex_state = LEX_NORMAL; |
3542 | s = scan_formline(PL_bufptr); | |
3543 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
3544 | goto rightbracket; |
3545 | OPERATOR(';'); | |
79072805 LW |
3546 | } |
3547 | ||
3280af22 NIS |
3548 | s = PL_bufptr; |
3549 | PL_oldoldbufptr = PL_oldbufptr; | |
3550 | PL_oldbufptr = s; | |
463ee0b2 LW |
3551 | |
3552 | retry: | |
5db06880 | 3553 | #ifdef PERL_MAD |
cd81e915 NC |
3554 | if (PL_thistoken) { |
3555 | sv_free(PL_thistoken); | |
3556 | PL_thistoken = 0; | |
5db06880 | 3557 | } |
cd81e915 | 3558 | PL_realtokenstart = s - SvPVX(PL_linestr); /* assume but undo on ws */ |
5db06880 | 3559 | #endif |
378cc40b LW |
3560 | switch (*s) { |
3561 | default: | |
7e2040f0 | 3562 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 3563 | goto keylookup; |
987a03fc | 3564 | len = UTF ? Perl_utf8_length(aTHX_ (U8 *) PL_linestart, (U8 *) s) : (STRLEN) (s - PL_linestart); |
356c7adf | 3565 | Perl_croak(aTHX_ "Unrecognized character \\x%02X in column %d", *s & 255, (int) len + 1); |
e929a76b LW |
3566 | case 4: |
3567 | case 26: | |
3568 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 3569 | case 0: |
5db06880 NC |
3570 | #ifdef PERL_MAD |
3571 | if (PL_madskills) | |
cd81e915 | 3572 | PL_faketokens = 0; |
5db06880 | 3573 | #endif |
3280af22 NIS |
3574 | if (!PL_rsfp) { |
3575 | PL_last_uni = 0; | |
3576 | PL_last_lop = 0; | |
c5ee2135 | 3577 | if (PL_lex_brackets) { |
10edeb5d JH |
3578 | yyerror((const char *) |
3579 | (PL_lex_formbrack | |
3580 | ? "Format not terminated" | |
3581 | : "Missing right curly or square bracket")); | |
c5ee2135 | 3582 | } |
4e553d73 | 3583 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 3584 | "### Tokener got EOF\n"); |
5f80b19c | 3585 | } ); |
79072805 | 3586 | TOKEN(0); |
463ee0b2 | 3587 | } |
3280af22 | 3588 | if (s++ < PL_bufend) |
a687059c | 3589 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
3590 | PL_last_uni = 0; |
3591 | PL_last_lop = 0; | |
3592 | if (!PL_in_eval && !PL_preambled) { | |
3593 | PL_preambled = TRUE; | |
5db06880 NC |
3594 | #ifdef PERL_MAD |
3595 | if (PL_madskills) | |
cd81e915 | 3596 | PL_faketokens = 1; |
5db06880 | 3597 | #endif |
3280af22 NIS |
3598 | sv_setpv(PL_linestr,incl_perldb()); |
3599 | if (SvCUR(PL_linestr)) | |
396482e1 | 3600 | sv_catpvs(PL_linestr,";"); |
3280af22 NIS |
3601 | if (PL_preambleav){ |
3602 | while(AvFILLp(PL_preambleav) >= 0) { | |
3603 | SV *tmpsv = av_shift(PL_preambleav); | |
3604 | sv_catsv(PL_linestr, tmpsv); | |
396482e1 | 3605 | sv_catpvs(PL_linestr, ";"); |
91b7def8 | 3606 | sv_free(tmpsv); |
3607 | } | |
3280af22 NIS |
3608 | sv_free((SV*)PL_preambleav); |
3609 | PL_preambleav = NULL; | |
91b7def8 | 3610 | } |
3280af22 | 3611 | if (PL_minus_n || PL_minus_p) { |
396482e1 | 3612 | sv_catpvs(PL_linestr, "LINE: while (<>) {"); |
3280af22 | 3613 | if (PL_minus_l) |
396482e1 | 3614 | sv_catpvs(PL_linestr,"chomp;"); |
3280af22 | 3615 | if (PL_minus_a) { |
3280af22 | 3616 | if (PL_minus_F) { |
3792a11b NC |
3617 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
3618 | || *PL_splitstr == '"') | |
3280af22 | 3619 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 3620 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 3621 | else { |
c8ef6a4b NC |
3622 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
3623 | bytes can be used as quoting characters. :-) */ | |
dd374669 | 3624 | const char *splits = PL_splitstr; |
91d456ae | 3625 | sv_catpvs(PL_linestr, "our @F=split(q\0"); |
48c4c863 NC |
3626 | do { |
3627 | /* Need to \ \s */ | |
dd374669 AL |
3628 | if (*splits == '\\') |
3629 | sv_catpvn(PL_linestr, splits, 1); | |
3630 | sv_catpvn(PL_linestr, splits, 1); | |
3631 | } while (*splits++); | |
48c4c863 NC |
3632 | /* This loop will embed the trailing NUL of |
3633 | PL_linestr as the last thing it does before | |
3634 | terminating. */ | |
396482e1 | 3635 | sv_catpvs(PL_linestr, ");"); |
54310121 | 3636 | } |
2304df62 AD |
3637 | } |
3638 | else | |
396482e1 | 3639 | sv_catpvs(PL_linestr,"our @F=split(' ');"); |
2304df62 | 3640 | } |
79072805 | 3641 | } |
bc9b29db | 3642 | if (PL_minus_E) |
396482e1 GA |
3643 | sv_catpvs(PL_linestr,"use feature ':5.10';"); |
3644 | sv_catpvs(PL_linestr, "\n"); | |
3280af22 NIS |
3645 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3646 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3647 | PL_last_lop = PL_last_uni = NULL; |
80a702cd | 3648 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 3649 | update_debugger_info(PL_linestr, NULL, 0); |
79072805 | 3650 | goto retry; |
a687059c | 3651 | } |
e929a76b | 3652 | do { |
aa7440fb | 3653 | bof = PL_rsfp ? TRUE : FALSE; |
bd61b366 | 3654 | if ((s = filter_gets(PL_linestr, PL_rsfp, 0)) == NULL) { |
7e28d3af | 3655 | fake_eof: |
5db06880 | 3656 | #ifdef PERL_MAD |
cd81e915 | 3657 | PL_realtokenstart = -1; |
5db06880 | 3658 | #endif |
7e28d3af JH |
3659 | if (PL_rsfp) { |
3660 | if (PL_preprocess && !PL_in_eval) | |
3661 | (void)PerlProc_pclose(PL_rsfp); | |
3662 | else if ((PerlIO *)PL_rsfp == PerlIO_stdin()) | |
3663 | PerlIO_clearerr(PL_rsfp); | |
3664 | else | |
3665 | (void)PerlIO_close(PL_rsfp); | |
4608196e | 3666 | PL_rsfp = NULL; |
7e28d3af JH |
3667 | PL_doextract = FALSE; |
3668 | } | |
3669 | if (!PL_in_eval && (PL_minus_n || PL_minus_p)) { | |
5db06880 NC |
3670 | #ifdef PERL_MAD |
3671 | if (PL_madskills) | |
cd81e915 | 3672 | PL_faketokens = 1; |
5db06880 | 3673 | #endif |
10edeb5d JH |
3674 | sv_setpv(PL_linestr, |
3675 | (const char *) | |
3676 | (PL_minus_p | |
3677 | ? ";}continue{print;}" : ";}")); | |
7e28d3af JH |
3678 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3679 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3680 | PL_last_lop = PL_last_uni = NULL; |
7e28d3af JH |
3681 | PL_minus_n = PL_minus_p = 0; |
3682 | goto retry; | |
3683 | } | |
3684 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
bd61b366 | 3685 | PL_last_lop = PL_last_uni = NULL; |
c69006e4 | 3686 | sv_setpvn(PL_linestr,"",0); |
7e28d3af JH |
3687 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ |
3688 | } | |
7aa207d6 JH |
3689 | /* If it looks like the start of a BOM or raw UTF-16, |
3690 | * check if it in fact is. */ | |
3691 | else if (bof && | |
3692 | (*s == 0 || | |
3693 | *(U8*)s == 0xEF || | |
3694 | *(U8*)s >= 0xFE || | |
3695 | s[1] == 0)) { | |
226017aa | 3696 | #ifdef PERLIO_IS_STDIO |
e3f494f1 JH |
3697 | # ifdef __GNU_LIBRARY__ |
3698 | # if __GNU_LIBRARY__ == 1 /* Linux glibc5 */ | |
226017aa DD |
3699 | # define FTELL_FOR_PIPE_IS_BROKEN |
3700 | # endif | |
e3f494f1 JH |
3701 | # else |
3702 | # ifdef __GLIBC__ | |
3703 | # if __GLIBC__ == 1 /* maybe some glibc5 release had it like this? */ | |
3704 | # define FTELL_FOR_PIPE_IS_BROKEN | |
3705 | # endif | |
3706 | # endif | |
226017aa DD |
3707 | # endif |
3708 | #endif | |
3709 | #ifdef FTELL_FOR_PIPE_IS_BROKEN | |
3710 | /* This loses the possibility to detect the bof | |
3711 | * situation on perl -P when the libc5 is being used. | |
3712 | * Workaround? Maybe attach some extra state to PL_rsfp? | |
3713 | */ | |
3714 | if (!PL_preprocess) | |
7e28d3af | 3715 | bof = PerlIO_tell(PL_rsfp) == SvCUR(PL_linestr); |
226017aa | 3716 | #else |
eb160463 | 3717 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
226017aa | 3718 | #endif |
7e28d3af | 3719 | if (bof) { |
3280af22 | 3720 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 3721 | s = swallow_bom((U8*)s); |
e929a76b | 3722 | } |
378cc40b | 3723 | } |
3280af22 | 3724 | if (PL_doextract) { |
a0d0e21e | 3725 | /* Incest with pod. */ |
5db06880 NC |
3726 | #ifdef PERL_MAD |
3727 | if (PL_madskills) | |
cd81e915 | 3728 | sv_catsv(PL_thiswhite, PL_linestr); |
5db06880 | 3729 | #endif |
01a57ef7 | 3730 | if (*s == '=' && strnEQ(s, "=cut", 4) && !isALPHA(s[4])) { |
c69006e4 | 3731 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3732 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3733 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3734 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3735 | PL_doextract = FALSE; |
a0d0e21e | 3736 | } |
4e553d73 | 3737 | } |
463ee0b2 | 3738 | incline(s); |
3280af22 NIS |
3739 | } while (PL_doextract); |
3740 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
80a702cd | 3741 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 3742 | update_debugger_info(PL_linestr, NULL, 0); |
3280af22 | 3743 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 3744 | PL_last_lop = PL_last_uni = NULL; |
57843af0 | 3745 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 3746 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 3747 | s++; |
a0d0e21e | 3748 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 3749 | s++; |
5db06880 NC |
3750 | #ifdef PERL_MAD |
3751 | if (PL_madskills) | |
cd81e915 | 3752 | PL_thiswhite = newSVpvn(PL_linestart, s - PL_linestart); |
5db06880 | 3753 | #endif |
bd61b366 | 3754 | d = NULL; |
3280af22 | 3755 | if (!PL_in_eval) { |
44a8e56a | 3756 | if (*s == '#' && *(s+1) == '!') |
3757 | d = s + 2; | |
3758 | #ifdef ALTERNATE_SHEBANG | |
3759 | else { | |
bfed75c6 | 3760 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 3761 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
3762 | d = s + (sizeof(as) - 1); | |
3763 | } | |
3764 | #endif /* ALTERNATE_SHEBANG */ | |
3765 | } | |
3766 | if (d) { | |
b8378b72 | 3767 | char *ipath; |
774d564b | 3768 | char *ipathend; |
b8378b72 | 3769 | |
774d564b | 3770 | while (isSPACE(*d)) |
b8378b72 CS |
3771 | d++; |
3772 | ipath = d; | |
774d564b | 3773 | while (*d && !isSPACE(*d)) |
3774 | d++; | |
3775 | ipathend = d; | |
3776 | ||
3777 | #ifdef ARG_ZERO_IS_SCRIPT | |
3778 | if (ipathend > ipath) { | |
3779 | /* | |
3780 | * HP-UX (at least) sets argv[0] to the script name, | |
3781 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
3782 | * at least, set argv[0] to the basename of the Perl | |
3783 | * interpreter. So, having found "#!", we'll set it right. | |
3784 | */ | |
fafc274c NC |
3785 | SV * const x = GvSV(gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, |
3786 | SVt_PV)); /* $^X */ | |
774d564b | 3787 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 3788 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 3789 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 3790 | SvSETMAGIC(x); |
3791 | } | |
556c1dec JH |
3792 | else { |
3793 | STRLEN blen; | |
3794 | STRLEN llen; | |
cfd0369c | 3795 | const char *bstart = SvPV_const(CopFILESV(PL_curcop),blen); |
9d4ba2ae | 3796 | const char * const lstart = SvPV_const(x,llen); |
556c1dec JH |
3797 | if (llen < blen) { |
3798 | bstart += blen - llen; | |
3799 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
3800 | sv_setpvn(x, ipath, ipathend - ipath); | |
3801 | SvSETMAGIC(x); | |
3802 | } | |
3803 | } | |
3804 | } | |
774d564b | 3805 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 3806 | } |
774d564b | 3807 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
3808 | |
3809 | /* | |
3810 | * Look for options. | |
3811 | */ | |
748a9306 | 3812 | d = instr(s,"perl -"); |
84e30d1a | 3813 | if (!d) { |
748a9306 | 3814 | d = instr(s,"perl"); |
84e30d1a GS |
3815 | #if defined(DOSISH) |
3816 | /* avoid getting into infinite loops when shebang | |
3817 | * line contains "Perl" rather than "perl" */ | |
3818 | if (!d) { | |
3819 | for (d = ipathend-4; d >= ipath; --d) { | |
3820 | if ((*d == 'p' || *d == 'P') | |
3821 | && !ibcmp(d, "perl", 4)) | |
3822 | { | |
3823 | break; | |
3824 | } | |
3825 | } | |
3826 | if (d < ipath) | |
bd61b366 | 3827 | d = NULL; |
84e30d1a GS |
3828 | } |
3829 | #endif | |
3830 | } | |
44a8e56a | 3831 | #ifdef ALTERNATE_SHEBANG |
3832 | /* | |
3833 | * If the ALTERNATE_SHEBANG on this system starts with a | |
3834 | * character that can be part of a Perl expression, then if | |
3835 | * we see it but not "perl", we're probably looking at the | |
3836 | * start of Perl code, not a request to hand off to some | |
3837 | * other interpreter. Similarly, if "perl" is there, but | |
3838 | * not in the first 'word' of the line, we assume the line | |
3839 | * contains the start of the Perl program. | |
44a8e56a | 3840 | */ |
3841 | if (d && *s != '#') { | |
f54cb97a | 3842 | const char *c = ipath; |
44a8e56a | 3843 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
3844 | c++; | |
3845 | if (c < d) | |
bd61b366 | 3846 | d = NULL; /* "perl" not in first word; ignore */ |
44a8e56a | 3847 | else |
3848 | *s = '#'; /* Don't try to parse shebang line */ | |
3849 | } | |
774d564b | 3850 | #endif /* ALTERNATE_SHEBANG */ |
bf4acbe4 | 3851 | #ifndef MACOS_TRADITIONAL |
748a9306 | 3852 | if (!d && |
44a8e56a | 3853 | *s == '#' && |
774d564b | 3854 | ipathend > ipath && |
3280af22 | 3855 | !PL_minus_c && |
748a9306 | 3856 | !instr(s,"indir") && |
3280af22 | 3857 | instr(PL_origargv[0],"perl")) |
748a9306 | 3858 | { |
27da23d5 | 3859 | dVAR; |
9f68db38 | 3860 | char **newargv; |
9f68db38 | 3861 | |
774d564b | 3862 | *ipathend = '\0'; |
3863 | s = ipathend + 1; | |
3280af22 | 3864 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 3865 | s++; |
3280af22 | 3866 | if (s < PL_bufend) { |
a02a5408 | 3867 | Newxz(newargv,PL_origargc+3,char*); |
9f68db38 | 3868 | newargv[1] = s; |
3280af22 | 3869 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
3870 | s++; |
3871 | *s = '\0'; | |
3280af22 | 3872 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
3873 | } |
3874 | else | |
3280af22 | 3875 | newargv = PL_origargv; |
774d564b | 3876 | newargv[0] = ipath; |
b35112e7 | 3877 | PERL_FPU_PRE_EXEC |
b4748376 | 3878 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
b35112e7 | 3879 | PERL_FPU_POST_EXEC |
cea2e8a9 | 3880 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 3881 | } |
bf4acbe4 | 3882 | #endif |
748a9306 | 3883 | if (d) { |
c35e046a AL |
3884 | while (*d && !isSPACE(*d)) |
3885 | d++; | |
3886 | while (SPACE_OR_TAB(*d)) | |
3887 | d++; | |
748a9306 LW |
3888 | |
3889 | if (*d++ == '-') { | |
f54cb97a | 3890 | const bool switches_done = PL_doswitches; |
fb993905 GA |
3891 | const U32 oldpdb = PL_perldb; |
3892 | const bool oldn = PL_minus_n; | |
3893 | const bool oldp = PL_minus_p; | |
3894 | ||
8cc95fdb | 3895 | do { |
3ffe3ee4 | 3896 | if (*d == 'M' || *d == 'm' || *d == 'C') { |
9d4ba2ae | 3897 | const char * const m = d; |
d4c19fe8 AL |
3898 | while (*d && !isSPACE(*d)) |
3899 | d++; | |
cea2e8a9 | 3900 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
8cc95fdb | 3901 | (int)(d - m), m); |
3902 | } | |
97bd5664 | 3903 | d = moreswitches(d); |
8cc95fdb | 3904 | } while (d); |
f0b2cf55 YST |
3905 | if (PL_doswitches && !switches_done) { |
3906 | int argc = PL_origargc; | |
3907 | char **argv = PL_origargv; | |
3908 | do { | |
3909 | argc--,argv++; | |
3910 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
3911 | init_argv_symbols(argc,argv); | |
3912 | } | |
155aba94 GS |
3913 | if ((PERLDB_LINE && !oldpdb) || |
3914 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) | |
b084f20b | 3915 | /* if we have already added "LINE: while (<>) {", |
3916 | we must not do it again */ | |
748a9306 | 3917 | { |
c69006e4 | 3918 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3919 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3920 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3921 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3922 | PL_preambled = FALSE; |
84902520 | 3923 | if (PERLDB_LINE) |
3280af22 | 3924 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
3925 | goto retry; |
3926 | } | |
a0d0e21e | 3927 | } |
79072805 | 3928 | } |
9f68db38 | 3929 | } |
79072805 | 3930 | } |
3280af22 NIS |
3931 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3932 | PL_bufptr = s; | |
3933 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3934 | return yylex(); |
ae986130 | 3935 | } |
378cc40b | 3936 | goto retry; |
4fdae800 | 3937 | case '\r': |
6a27c188 | 3938 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 3939 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 3940 | Perl_croak(aTHX_ |
cc507455 | 3941 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 3942 | #endif |
4fdae800 | 3943 | case ' ': case '\t': case '\f': case 013: |
bf4acbe4 GS |
3944 | #ifdef MACOS_TRADITIONAL |
3945 | case '\312': | |
3946 | #endif | |
5db06880 | 3947 | #ifdef PERL_MAD |
cd81e915 | 3948 | PL_realtokenstart = -1; |
ac372eb8 RD |
3949 | if (!PL_thiswhite) |
3950 | PL_thiswhite = newSVpvs(""); | |
3951 | sv_catpvn(PL_thiswhite, s, 1); | |
5db06880 | 3952 | #endif |
ac372eb8 | 3953 | s++; |
378cc40b | 3954 | goto retry; |
378cc40b | 3955 | case '#': |
e929a76b | 3956 | case '\n': |
5db06880 | 3957 | #ifdef PERL_MAD |
cd81e915 | 3958 | PL_realtokenstart = -1; |
5db06880 | 3959 | if (PL_madskills) |
cd81e915 | 3960 | PL_faketokens = 0; |
5db06880 | 3961 | #endif |
3280af22 | 3962 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
3963 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
3964 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
3965 | CopLINE_dec(PL_curcop); | |
3966 | incline(s); | |
3967 | } | |
5db06880 NC |
3968 | if (PL_madskills && !PL_lex_formbrack && !PL_in_eval) { |
3969 | s = SKIPSPACE0(s); | |
3970 | if (!PL_in_eval || PL_rsfp) | |
3971 | incline(s); | |
3972 | } | |
3973 | else { | |
3974 | d = s; | |
3975 | while (d < PL_bufend && *d != '\n') | |
3976 | d++; | |
3977 | if (d < PL_bufend) | |
3978 | d++; | |
3979 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
3980 | Perl_croak(aTHX_ "panic: input overflow"); | |
3981 | #ifdef PERL_MAD | |
3982 | if (PL_madskills) | |
cd81e915 | 3983 | PL_thiswhite = newSVpvn(s, d - s); |
5db06880 NC |
3984 | #endif |
3985 | s = d; | |
3986 | incline(s); | |
3987 | } | |
3280af22 NIS |
3988 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3989 | PL_bufptr = s; | |
3990 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3991 | return yylex(); |
a687059c | 3992 | } |
378cc40b | 3993 | } |
a687059c | 3994 | else { |
5db06880 NC |
3995 | #ifdef PERL_MAD |
3996 | if (PL_madskills && CopLINE(PL_curcop) >= 1 && !PL_lex_formbrack) { | |
3997 | if (CopLINE(PL_curcop) == 1 && s[0] == '#' && s[1] == '!') { | |
cd81e915 | 3998 | PL_faketokens = 0; |
5db06880 NC |
3999 | s = SKIPSPACE0(s); |
4000 | TOKEN(PEG); /* make sure any #! line is accessible */ | |
4001 | } | |
4002 | s = SKIPSPACE0(s); | |
4003 | } | |
4004 | else { | |
4005 | /* if (PL_madskills && PL_lex_formbrack) { */ | |
4006 | d = s; | |
4007 | while (d < PL_bufend && *d != '\n') | |
4008 | d++; | |
4009 | if (d < PL_bufend) | |
4010 | d++; | |
4011 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
4012 | Perl_croak(aTHX_ "panic: input overflow"); | |
4013 | if (PL_madskills && CopLINE(PL_curcop) >= 1) { | |
cd81e915 | 4014 | if (!PL_thiswhite) |
6b29d1f5 | 4015 | PL_thiswhite = newSVpvs(""); |
5db06880 | 4016 | if (CopLINE(PL_curcop) == 1) { |
cd81e915 NC |
4017 | sv_setpvn(PL_thiswhite, "", 0); |
4018 | PL_faketokens = 0; | |
5db06880 | 4019 | } |
cd81e915 | 4020 | sv_catpvn(PL_thiswhite, s, d - s); |
5db06880 NC |
4021 | } |
4022 | s = d; | |
4023 | /* } | |
4024 | *s = '\0'; | |
4025 | PL_bufend = s; */ | |
4026 | } | |
4027 | #else | |
378cc40b | 4028 | *s = '\0'; |
3280af22 | 4029 | PL_bufend = s; |
5db06880 | 4030 | #endif |
a687059c | 4031 | } |
378cc40b LW |
4032 | goto retry; |
4033 | case '-': | |
79072805 | 4034 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 | 4035 | I32 ftst = 0; |
90771dc0 | 4036 | char tmp; |
e5edeb50 | 4037 | |
378cc40b | 4038 | s++; |
3280af22 | 4039 | PL_bufptr = s; |
748a9306 LW |
4040 | tmp = *s++; |
4041 | ||
bf4acbe4 | 4042 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
4043 | s++; |
4044 | ||
4045 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 4046 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
931e0695 | 4047 | DEBUG_T( { printbuf("### Saw unary minus before =>, forcing word %s\n", s); } ); |
748a9306 LW |
4048 | OPERATOR('-'); /* unary minus */ |
4049 | } | |
3280af22 | 4050 | PL_last_uni = PL_oldbufptr; |
748a9306 | 4051 | switch (tmp) { |
e5edeb50 JH |
4052 | case 'r': ftst = OP_FTEREAD; break; |
4053 | case 'w': ftst = OP_FTEWRITE; break; | |
4054 | case 'x': ftst = OP_FTEEXEC; break; | |
4055 | case 'o': ftst = OP_FTEOWNED; break; | |
4056 | case 'R': ftst = OP_FTRREAD; break; | |
4057 | case 'W': ftst = OP_FTRWRITE; break; | |
4058 | case 'X': ftst = OP_FTREXEC; break; | |
4059 | case 'O': ftst = OP_FTROWNED; break; | |
4060 | case 'e': ftst = OP_FTIS; break; | |
4061 | case 'z': ftst = OP_FTZERO; break; | |
4062 | case 's': ftst = OP_FTSIZE; break; | |
4063 | case 'f': ftst = OP_FTFILE; break; | |
4064 | case 'd': ftst = OP_FTDIR; break; | |
4065 | case 'l': ftst = OP_FTLINK; break; | |
4066 | case 'p': ftst = OP_FTPIPE; break; | |
4067 | case 'S': ftst = OP_FTSOCK; break; | |
4068 | case 'u': ftst = OP_FTSUID; break; | |
4069 | case 'g': ftst = OP_FTSGID; break; | |
4070 | case 'k': ftst = OP_FTSVTX; break; | |
4071 | case 'b': ftst = OP_FTBLK; break; | |
4072 | case 'c': ftst = OP_FTCHR; break; | |
4073 | case 't': ftst = OP_FTTTY; break; | |
4074 | case 'T': ftst = OP_FTTEXT; break; | |
4075 | case 'B': ftst = OP_FTBINARY; break; | |
4076 | case 'M': case 'A': case 'C': | |
fafc274c | 4077 | gv_fetchpvs("\024", GV_ADD|GV_NOTQUAL, SVt_PV); |
e5edeb50 JH |
4078 | switch (tmp) { |
4079 | case 'M': ftst = OP_FTMTIME; break; | |
4080 | case 'A': ftst = OP_FTATIME; break; | |
4081 | case 'C': ftst = OP_FTCTIME; break; | |
4082 | default: break; | |
4083 | } | |
4084 | break; | |
378cc40b | 4085 | default: |
378cc40b LW |
4086 | break; |
4087 | } | |
e5edeb50 | 4088 | if (ftst) { |
eb160463 | 4089 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 4090 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a18d764d | 4091 | "### Saw file test %c\n", (int)tmp); |
5f80b19c | 4092 | } ); |
e5edeb50 JH |
4093 | FTST(ftst); |
4094 | } | |
4095 | else { | |
4096 | /* Assume it was a minus followed by a one-letter named | |
4097 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 4098 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
17ad61e0 | 4099 | "### '-%c' looked like a file test but was not\n", |
4fccd7c6 | 4100 | (int) tmp); |
5f80b19c | 4101 | } ); |
3cf7b4c4 | 4102 | s = --PL_bufptr; |
e5edeb50 | 4103 | } |
378cc40b | 4104 | } |
90771dc0 NC |
4105 | { |
4106 | const char tmp = *s++; | |
4107 | if (*s == tmp) { | |
4108 | s++; | |
4109 | if (PL_expect == XOPERATOR) | |
4110 | TERM(POSTDEC); | |
4111 | else | |
4112 | OPERATOR(PREDEC); | |
4113 | } | |
4114 | else if (*s == '>') { | |
4115 | s++; | |
29595ff2 | 4116 | s = SKIPSPACE1(s); |
90771dc0 NC |
4117 | if (isIDFIRST_lazy_if(s,UTF)) { |
4118 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); | |
4119 | TOKEN(ARROW); | |
4120 | } | |
4121 | else if (*s == '$') | |
4122 | OPERATOR(ARROW); | |
4123 | else | |
4124 | TERM(ARROW); | |
4125 | } | |
3280af22 | 4126 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4127 | Aop(OP_SUBTRACT); |
4128 | else { | |
4129 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4130 | check_uni(); | |
4131 | OPERATOR('-'); /* unary minus */ | |
79072805 | 4132 | } |
2f3197b3 | 4133 | } |
79072805 | 4134 | |
378cc40b | 4135 | case '+': |
90771dc0 NC |
4136 | { |
4137 | const char tmp = *s++; | |
4138 | if (*s == tmp) { | |
4139 | s++; | |
4140 | if (PL_expect == XOPERATOR) | |
4141 | TERM(POSTINC); | |
4142 | else | |
4143 | OPERATOR(PREINC); | |
4144 | } | |
3280af22 | 4145 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4146 | Aop(OP_ADD); |
4147 | else { | |
4148 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4149 | check_uni(); | |
4150 | OPERATOR('+'); | |
4151 | } | |
2f3197b3 | 4152 | } |
a687059c | 4153 | |
378cc40b | 4154 | case '*': |
3280af22 NIS |
4155 | if (PL_expect != XOPERATOR) { |
4156 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
4157 | PL_expect = XOPERATOR; | |
4158 | force_ident(PL_tokenbuf, '*'); | |
4159 | if (!*PL_tokenbuf) | |
a0d0e21e | 4160 | PREREF('*'); |
79072805 | 4161 | TERM('*'); |
a687059c | 4162 | } |
79072805 LW |
4163 | s++; |
4164 | if (*s == '*') { | |
a687059c | 4165 | s++; |
79072805 | 4166 | PWop(OP_POW); |
a687059c | 4167 | } |
79072805 LW |
4168 | Mop(OP_MULTIPLY); |
4169 | ||
378cc40b | 4170 | case '%': |
3280af22 | 4171 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 4172 | ++s; |
4173 | Mop(OP_MODULO); | |
a687059c | 4174 | } |
3280af22 | 4175 | PL_tokenbuf[0] = '%'; |
e8ae98db RGS |
4176 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
4177 | sizeof PL_tokenbuf - 1, FALSE); | |
3280af22 | 4178 | if (!PL_tokenbuf[1]) { |
bbce6d69 | 4179 | PREREF('%'); |
a687059c | 4180 | } |
3280af22 | 4181 | PL_pending_ident = '%'; |
bbce6d69 | 4182 | TERM('%'); |
a687059c | 4183 | |
378cc40b | 4184 | case '^': |
79072805 | 4185 | s++; |
a0d0e21e | 4186 | BOop(OP_BIT_XOR); |
79072805 | 4187 | case '[': |
3280af22 | 4188 | PL_lex_brackets++; |
79072805 | 4189 | /* FALL THROUGH */ |
378cc40b | 4190 | case '~': |
0d863452 | 4191 | if (s[1] == '~' |
3e7dd34d | 4192 | && (PL_expect == XOPERATOR || PL_expect == XTERMORDORDOR)) |
0d863452 RH |
4193 | { |
4194 | s += 2; | |
4195 | Eop(OP_SMARTMATCH); | |
4196 | } | |
378cc40b | 4197 | case ',': |
90771dc0 NC |
4198 | { |
4199 | const char tmp = *s++; | |
4200 | OPERATOR(tmp); | |
4201 | } | |
a0d0e21e LW |
4202 | case ':': |
4203 | if (s[1] == ':') { | |
4204 | len = 0; | |
0bfa2a8a | 4205 | goto just_a_word_zero_gv; |
a0d0e21e LW |
4206 | } |
4207 | s++; | |
09bef843 SB |
4208 | switch (PL_expect) { |
4209 | OP *attrs; | |
5db06880 NC |
4210 | #ifdef PERL_MAD |
4211 | I32 stuffstart; | |
4212 | #endif | |
09bef843 SB |
4213 | case XOPERATOR: |
4214 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
4215 | break; | |
4216 | PL_bufptr = s; /* update in case we back off */ | |
4217 | goto grabattrs; | |
4218 | case XATTRBLOCK: | |
4219 | PL_expect = XBLOCK; | |
4220 | goto grabattrs; | |
4221 | case XATTRTERM: | |
4222 | PL_expect = XTERMBLOCK; | |
4223 | grabattrs: | |
5db06880 NC |
4224 | #ifdef PERL_MAD |
4225 | stuffstart = s - SvPVX(PL_linestr) - 1; | |
4226 | #endif | |
29595ff2 | 4227 | s = PEEKSPACE(s); |
5f66b61c | 4228 | attrs = NULL; |
7e2040f0 | 4229 | while (isIDFIRST_lazy_if(s,UTF)) { |
90771dc0 | 4230 | I32 tmp; |
5cc237b8 | 4231 | SV *sv; |
09bef843 | 4232 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 4233 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len, 0))) { |
f9829d6b GS |
4234 | if (tmp < 0) tmp = -tmp; |
4235 | switch (tmp) { | |
4236 | case KEY_or: | |
4237 | case KEY_and: | |
4238 | case KEY_for: | |
4239 | case KEY_unless: | |
4240 | case KEY_if: | |
4241 | case KEY_while: | |
4242 | case KEY_until: | |
4243 | goto got_attrs; | |
4244 | default: | |
4245 | break; | |
4246 | } | |
4247 | } | |
5cc237b8 | 4248 | sv = newSVpvn(s, len); |
09bef843 SB |
4249 | if (*d == '(') { |
4250 | d = scan_str(d,TRUE,TRUE); | |
4251 | if (!d) { | |
09bef843 SB |
4252 | /* MUST advance bufptr here to avoid bogus |
4253 | "at end of line" context messages from yyerror(). | |
4254 | */ | |
4255 | PL_bufptr = s + len; | |
4256 | yyerror("Unterminated attribute parameter in attribute list"); | |
4257 | if (attrs) | |
4258 | op_free(attrs); | |
5cc237b8 | 4259 | sv_free(sv); |
bbf60fe6 | 4260 | return REPORT(0); /* EOF indicator */ |
09bef843 SB |
4261 | } |
4262 | } | |
4263 | if (PL_lex_stuff) { | |
09bef843 SB |
4264 | sv_catsv(sv, PL_lex_stuff); |
4265 | attrs = append_elem(OP_LIST, attrs, | |
4266 | newSVOP(OP_CONST, 0, sv)); | |
4267 | SvREFCNT_dec(PL_lex_stuff); | |
a0714e2c | 4268 | PL_lex_stuff = NULL; |
09bef843 SB |
4269 | } |
4270 | else { | |
5cc237b8 BS |
4271 | if (len == 6 && strnEQ(SvPVX(sv), "unique", len)) { |
4272 | sv_free(sv); | |
1108974d | 4273 | if (PL_in_my == KEY_our) { |
371fce9b DM |
4274 | #ifdef USE_ITHREADS |
4275 | GvUNIQUE_on(cGVOPx_gv(yylval.opval)); | |
4276 | #else | |
1108974d | 4277 | /* skip to avoid loading attributes.pm */ |
371fce9b | 4278 | #endif |
df9a6019 | 4279 | deprecate(":unique"); |
1108974d | 4280 | } |
bfed75c6 | 4281 | else |
371fce9b DM |
4282 | Perl_croak(aTHX_ "The 'unique' attribute may only be applied to 'our' variables"); |
4283 | } | |
4284 | ||
d3cea301 SB |
4285 | /* NOTE: any CV attrs applied here need to be part of |
4286 | the CVf_BUILTIN_ATTRS define in cv.h! */ | |
5cc237b8 BS |
4287 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "lvalue", len)) { |
4288 | sv_free(sv); | |
78f9721b | 4289 | CvLVALUE_on(PL_compcv); |
5cc237b8 BS |
4290 | } |
4291 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "locked", len)) { | |
4292 | sv_free(sv); | |
78f9721b | 4293 | CvLOCKED_on(PL_compcv); |
5cc237b8 BS |
4294 | } |
4295 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "method", len)) { | |
4296 | sv_free(sv); | |
78f9721b | 4297 | CvMETHOD_on(PL_compcv); |
5cc237b8 | 4298 | } |
78f9721b SM |
4299 | /* After we've set the flags, it could be argued that |
4300 | we don't need to do the attributes.pm-based setting | |
4301 | process, and shouldn't bother appending recognized | |
d3cea301 SB |
4302 | flags. To experiment with that, uncomment the |
4303 | following "else". (Note that's already been | |
4304 | uncommented. That keeps the above-applied built-in | |
4305 | attributes from being intercepted (and possibly | |
4306 | rejected) by a package's attribute routines, but is | |
4307 | justified by the performance win for the common case | |
4308 | of applying only built-in attributes.) */ | |
0256094b | 4309 | else |
78f9721b SM |
4310 | attrs = append_elem(OP_LIST, attrs, |
4311 | newSVOP(OP_CONST, 0, | |
5cc237b8 | 4312 | sv)); |
09bef843 | 4313 | } |
29595ff2 | 4314 | s = PEEKSPACE(d); |
0120eecf | 4315 | if (*s == ':' && s[1] != ':') |
29595ff2 | 4316 | s = PEEKSPACE(s+1); |
0120eecf GS |
4317 | else if (s == d) |
4318 | break; /* require real whitespace or :'s */ | |
29595ff2 | 4319 | /* XXX losing whitespace on sequential attributes here */ |
09bef843 | 4320 | } |
90771dc0 NC |
4321 | { |
4322 | const char tmp | |
4323 | = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ | |
4324 | if (*s != ';' && *s != '}' && *s != tmp | |
4325 | && (tmp != '=' || *s != ')')) { | |
4326 | const char q = ((*s == '\'') ? '"' : '\''); | |
4327 | /* If here for an expression, and parsed no attrs, back | |
4328 | off. */ | |
4329 | if (tmp == '=' && !attrs) { | |
4330 | s = PL_bufptr; | |
4331 | break; | |
4332 | } | |
4333 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
4334 | context messages from yyerror(). | |
4335 | */ | |
4336 | PL_bufptr = s; | |
10edeb5d JH |
4337 | yyerror( (const char *) |
4338 | (*s | |
4339 | ? Perl_form(aTHX_ "Invalid separator character " | |
4340 | "%c%c%c in attribute list", q, *s, q) | |
4341 | : "Unterminated attribute list" ) ); | |
90771dc0 NC |
4342 | if (attrs) |
4343 | op_free(attrs); | |
4344 | OPERATOR(':'); | |
09bef843 | 4345 | } |
09bef843 | 4346 | } |
f9829d6b | 4347 | got_attrs: |
09bef843 | 4348 | if (attrs) { |
cd81e915 | 4349 | start_force(PL_curforce); |
9ded7720 | 4350 | NEXTVAL_NEXTTOKE.opval = attrs; |
cd81e915 | 4351 | CURMAD('_', PL_nextwhite); |
89122651 | 4352 | force_next(THING); |
5db06880 NC |
4353 | } |
4354 | #ifdef PERL_MAD | |
4355 | if (PL_madskills) { | |
cd81e915 | 4356 | PL_thistoken = newSVpvn(SvPVX(PL_linestr) + stuffstart, |
5db06880 | 4357 | (s - SvPVX(PL_linestr)) - stuffstart); |
09bef843 | 4358 | } |
5db06880 | 4359 | #endif |
09bef843 SB |
4360 | TOKEN(COLONATTR); |
4361 | } | |
a0d0e21e | 4362 | OPERATOR(':'); |
8990e307 LW |
4363 | case '(': |
4364 | s++; | |
3280af22 NIS |
4365 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
4366 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 4367 | else |
3280af22 | 4368 | PL_expect = XTERM; |
29595ff2 | 4369 | s = SKIPSPACE1(s); |
a0d0e21e | 4370 | TOKEN('('); |
378cc40b | 4371 | case ';': |
f4dd75d9 | 4372 | CLINE; |
90771dc0 NC |
4373 | { |
4374 | const char tmp = *s++; | |
4375 | OPERATOR(tmp); | |
4376 | } | |
378cc40b | 4377 | case ')': |
90771dc0 NC |
4378 | { |
4379 | const char tmp = *s++; | |
29595ff2 | 4380 | s = SKIPSPACE1(s); |
90771dc0 NC |
4381 | if (*s == '{') |
4382 | PREBLOCK(tmp); | |
4383 | TERM(tmp); | |
4384 | } | |
79072805 LW |
4385 | case ']': |
4386 | s++; | |
3280af22 | 4387 | if (PL_lex_brackets <= 0) |
d98d5fff | 4388 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 4389 | else |
3280af22 NIS |
4390 | --PL_lex_brackets; |
4391 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4392 | if (PL_lex_brackets == 0) { | |
02255c60 FC |
4393 | if (*s == '-' && s[1] == '>') |
4394 | PL_lex_state = LEX_INTERPENDMAYBE; | |
4395 | else if (*s != '[' && *s != '{') | |
3280af22 | 4396 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4397 | } |
4398 | } | |
4633a7c4 | 4399 | TERM(']'); |
79072805 LW |
4400 | case '{': |
4401 | leftbracket: | |
79072805 | 4402 | s++; |
3280af22 | 4403 | if (PL_lex_brackets > 100) { |
8edd5f42 | 4404 | Renew(PL_lex_brackstack, PL_lex_brackets + 10, char); |
8990e307 | 4405 | } |
3280af22 | 4406 | switch (PL_expect) { |
a0d0e21e | 4407 | case XTERM: |
3280af22 | 4408 | if (PL_lex_formbrack) { |
a0d0e21e LW |
4409 | s--; |
4410 | PRETERMBLOCK(DO); | |
4411 | } | |
3280af22 NIS |
4412 | if (PL_oldoldbufptr == PL_last_lop) |
4413 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4414 | else |
3280af22 | 4415 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 4416 | OPERATOR(HASHBRACK); |
a0d0e21e | 4417 | case XOPERATOR: |
bf4acbe4 | 4418 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 4419 | s++; |
44a8e56a | 4420 | d = s; |
3280af22 NIS |
4421 | PL_tokenbuf[0] = '\0'; |
4422 | if (d < PL_bufend && *d == '-') { | |
4423 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 4424 | d++; |
bf4acbe4 | 4425 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 4426 | d++; |
4427 | } | |
7e2040f0 | 4428 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 4429 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 4430 | FALSE, &len); |
bf4acbe4 | 4431 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
4432 | d++; |
4433 | if (*d == '}') { | |
f54cb97a | 4434 | const char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 4435 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
4436 | if (minus) | |
4437 | force_next('-'); | |
748a9306 LW |
4438 | } |
4439 | } | |
4440 | /* FALL THROUGH */ | |
09bef843 | 4441 | case XATTRBLOCK: |
748a9306 | 4442 | case XBLOCK: |
3280af22 NIS |
4443 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
4444 | PL_expect = XSTATE; | |
a0d0e21e | 4445 | break; |
09bef843 | 4446 | case XATTRTERM: |
a0d0e21e | 4447 | case XTERMBLOCK: |
3280af22 NIS |
4448 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
4449 | PL_expect = XSTATE; | |
a0d0e21e LW |
4450 | break; |
4451 | default: { | |
f54cb97a | 4452 | const char *t; |
3280af22 NIS |
4453 | if (PL_oldoldbufptr == PL_last_lop) |
4454 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4455 | else |
3280af22 | 4456 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
29595ff2 | 4457 | s = SKIPSPACE1(s); |
8452ff4b SB |
4458 | if (*s == '}') { |
4459 | if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) { | |
4460 | PL_expect = XTERM; | |
4461 | /* This hack is to get the ${} in the message. */ | |
4462 | PL_bufptr = s+1; | |
4463 | yyerror("syntax error"); | |
4464 | break; | |
4465 | } | |
a0d0e21e | 4466 | OPERATOR(HASHBRACK); |
8452ff4b | 4467 | } |
b8a4b1be GS |
4468 | /* This hack serves to disambiguate a pair of curlies |
4469 | * as being a block or an anon hash. Normally, expectation | |
4470 | * determines that, but in cases where we're not in a | |
4471 | * position to expect anything in particular (like inside | |
4472 | * eval"") we have to resolve the ambiguity. This code | |
4473 | * covers the case where the first term in the curlies is a | |
4474 | * quoted string. Most other cases need to be explicitly | |
a0288114 | 4475 | * disambiguated by prepending a "+" before the opening |
b8a4b1be GS |
4476 | * curly in order to force resolution as an anon hash. |
4477 | * | |
4478 | * XXX should probably propagate the outer expectation | |
4479 | * into eval"" to rely less on this hack, but that could | |
4480 | * potentially break current behavior of eval"". | |
4481 | * GSAR 97-07-21 | |
4482 | */ | |
4483 | t = s; | |
4484 | if (*s == '\'' || *s == '"' || *s == '`') { | |
4485 | /* common case: get past first string, handling escapes */ | |
3280af22 | 4486 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
4487 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
4488 | t++; | |
4489 | t++; | |
a0d0e21e | 4490 | } |
b8a4b1be | 4491 | else if (*s == 'q') { |
3280af22 | 4492 | if (++t < PL_bufend |
b8a4b1be | 4493 | && (!isALNUM(*t) |
3280af22 | 4494 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
4495 | && !isALNUM(*t)))) |
4496 | { | |
abc667d1 | 4497 | /* skip q//-like construct */ |
f54cb97a | 4498 | const char *tmps; |
b8a4b1be GS |
4499 | char open, close, term; |
4500 | I32 brackets = 1; | |
4501 | ||
3280af22 | 4502 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be | 4503 | t++; |
abc667d1 DM |
4504 | /* check for q => */ |
4505 | if (t+1 < PL_bufend && t[0] == '=' && t[1] == '>') { | |
4506 | OPERATOR(HASHBRACK); | |
4507 | } | |
b8a4b1be GS |
4508 | term = *t; |
4509 | open = term; | |
4510 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
4511 | term = tmps[5]; | |
4512 | close = term; | |
4513 | if (open == close) | |
3280af22 NIS |
4514 | for (t++; t < PL_bufend; t++) { |
4515 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 4516 | t++; |
6d07e5e9 | 4517 | else if (*t == open) |
b8a4b1be GS |
4518 | break; |
4519 | } | |
abc667d1 | 4520 | else { |
3280af22 NIS |
4521 | for (t++; t < PL_bufend; t++) { |
4522 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 4523 | t++; |
6d07e5e9 | 4524 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
4525 | break; |
4526 | else if (*t == open) | |
4527 | brackets++; | |
4528 | } | |
abc667d1 DM |
4529 | } |
4530 | t++; | |
b8a4b1be | 4531 | } |
abc667d1 DM |
4532 | else |
4533 | /* skip plain q word */ | |
4534 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) | |
4535 | t += UTF8SKIP(t); | |
a0d0e21e | 4536 | } |
7e2040f0 | 4537 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 4538 | t += UTF8SKIP(t); |
7e2040f0 | 4539 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 4540 | t += UTF8SKIP(t); |
a0d0e21e | 4541 | } |
3280af22 | 4542 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 4543 | t++; |
b8a4b1be GS |
4544 | /* if comma follows first term, call it an anon hash */ |
4545 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 4546 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 4547 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 4548 | OPERATOR(HASHBRACK); |
3280af22 | 4549 | if (PL_expect == XREF) |
4e4e412b | 4550 | PL_expect = XTERM; |
a0d0e21e | 4551 | else { |
3280af22 NIS |
4552 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
4553 | PL_expect = XSTATE; | |
a0d0e21e | 4554 | } |
8990e307 | 4555 | } |
a0d0e21e | 4556 | break; |
463ee0b2 | 4557 | } |
57843af0 | 4558 | yylval.ival = CopLINE(PL_curcop); |
79072805 | 4559 | if (isSPACE(*s) || *s == '#') |
3280af22 | 4560 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 4561 | TOKEN('{'); |
378cc40b | 4562 | case '}': |
79072805 LW |
4563 | rightbracket: |
4564 | s++; | |
3280af22 | 4565 | if (PL_lex_brackets <= 0) |
d98d5fff | 4566 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 4567 | else |
3280af22 | 4568 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 4569 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
4570 | PL_lex_formbrack = 0; |
4571 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4572 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
4573 | if (PL_expect & XFAKEBRACK) { |
4574 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
4575 | PL_lex_state = LEX_INTERPEND; |
4576 | PL_bufptr = s; | |
5db06880 NC |
4577 | #if 0 |
4578 | if (PL_madskills) { | |
cd81e915 | 4579 | if (!PL_thiswhite) |
6b29d1f5 | 4580 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4581 | sv_catpvn(PL_thiswhite,"}",1); |
5db06880 NC |
4582 | } |
4583 | #endif | |
cea2e8a9 | 4584 | return yylex(); /* ignore fake brackets */ |
79072805 | 4585 | } |
fa83b5b6 | 4586 | if (*s == '-' && s[1] == '>') |
3280af22 | 4587 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 4588 | else if (*s != '[' && *s != '{') |
3280af22 | 4589 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4590 | } |
4591 | } | |
9059aa12 LW |
4592 | if (PL_expect & XFAKEBRACK) { |
4593 | PL_expect &= XENUMMASK; | |
3280af22 | 4594 | PL_bufptr = s; |
cea2e8a9 | 4595 | return yylex(); /* ignore fake brackets */ |
748a9306 | 4596 | } |
cd81e915 | 4597 | start_force(PL_curforce); |
5db06880 NC |
4598 | if (PL_madskills) { |
4599 | curmad('X', newSVpvn(s-1,1)); | |
cd81e915 | 4600 | CURMAD('_', PL_thiswhite); |
5db06880 | 4601 | } |
79072805 | 4602 | force_next('}'); |
5db06880 | 4603 | #ifdef PERL_MAD |
cd81e915 | 4604 | if (!PL_thistoken) |
6b29d1f5 | 4605 | PL_thistoken = newSVpvs(""); |
5db06880 | 4606 | #endif |
79072805 | 4607 | TOKEN(';'); |
378cc40b LW |
4608 | case '&': |
4609 | s++; | |
90771dc0 | 4610 | if (*s++ == '&') |
a0d0e21e | 4611 | AOPERATOR(ANDAND); |
378cc40b | 4612 | s--; |
3280af22 | 4613 | if (PL_expect == XOPERATOR) { |
041457d9 DM |
4614 | if (PL_bufptr == PL_linestart && ckWARN(WARN_SEMICOLON) |
4615 | && isIDFIRST_lazy_if(s,UTF)) | |
7e2040f0 | 4616 | { |
57843af0 | 4617 | CopLINE_dec(PL_curcop); |
9014280d | 4618 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 4619 | CopLINE_inc(PL_curcop); |
463ee0b2 | 4620 | } |
79072805 | 4621 | BAop(OP_BIT_AND); |
463ee0b2 | 4622 | } |
79072805 | 4623 | |
3280af22 NIS |
4624 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
4625 | if (*PL_tokenbuf) { | |
4626 | PL_expect = XOPERATOR; | |
4627 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 4628 | } |
79072805 LW |
4629 | else |
4630 | PREREF('&'); | |
c07a80fd | 4631 | yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
4632 | TERM('&'); |
4633 | ||
378cc40b LW |
4634 | case '|': |
4635 | s++; | |
90771dc0 | 4636 | if (*s++ == '|') |
a0d0e21e | 4637 | AOPERATOR(OROR); |
378cc40b | 4638 | s--; |
79072805 | 4639 | BOop(OP_BIT_OR); |
378cc40b LW |
4640 | case '=': |
4641 | s++; | |
748a9306 | 4642 | { |
90771dc0 NC |
4643 | const char tmp = *s++; |
4644 | if (tmp == '=') | |
4645 | Eop(OP_EQ); | |
4646 | if (tmp == '>') | |
4647 | OPERATOR(','); | |
4648 | if (tmp == '~') | |
4649 | PMop(OP_MATCH); | |
4650 | if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX) | |
4651 | && strchr("+-*/%.^&|<",tmp)) | |
4652 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4653 | "Reversed %c= operator",(int)tmp); | |
4654 | s--; | |
4655 | if (PL_expect == XSTATE && isALPHA(tmp) && | |
4656 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
4657 | { | |
4658 | if (PL_in_eval && !PL_rsfp) { | |
4659 | d = PL_bufend; | |
4660 | while (s < d) { | |
4661 | if (*s++ == '\n') { | |
4662 | incline(s); | |
4663 | if (strnEQ(s,"=cut",4)) { | |
4664 | s = strchr(s,'\n'); | |
4665 | if (s) | |
4666 | s++; | |
4667 | else | |
4668 | s = d; | |
4669 | incline(s); | |
4670 | goto retry; | |
4671 | } | |
4672 | } | |
a5f75d66 | 4673 | } |
90771dc0 | 4674 | goto retry; |
a5f75d66 | 4675 | } |
5db06880 NC |
4676 | #ifdef PERL_MAD |
4677 | if (PL_madskills) { | |
cd81e915 | 4678 | if (!PL_thiswhite) |
6b29d1f5 | 4679 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4680 | sv_catpvn(PL_thiswhite, PL_linestart, |
5db06880 NC |
4681 | PL_bufend - PL_linestart); |
4682 | } | |
4683 | #endif | |
90771dc0 NC |
4684 | s = PL_bufend; |
4685 | PL_doextract = TRUE; | |
4686 | goto retry; | |
a5f75d66 | 4687 | } |
a0d0e21e | 4688 | } |
3280af22 | 4689 | if (PL_lex_brackets < PL_lex_formbrack) { |
c35e046a | 4690 | const char *t = s; |
51882d45 | 4691 | #ifdef PERL_STRICT_CR |
c35e046a | 4692 | while (SPACE_OR_TAB(*t)) |
51882d45 | 4693 | #else |
c35e046a | 4694 | while (SPACE_OR_TAB(*t) || *t == '\r') |
51882d45 | 4695 | #endif |
c35e046a | 4696 | t++; |
a0d0e21e LW |
4697 | if (*t == '\n' || *t == '#') { |
4698 | s--; | |
3280af22 | 4699 | PL_expect = XBLOCK; |
a0d0e21e LW |
4700 | goto leftbracket; |
4701 | } | |
79072805 | 4702 | } |
a0d0e21e LW |
4703 | yylval.ival = 0; |
4704 | OPERATOR(ASSIGNOP); | |
378cc40b LW |
4705 | case '!': |
4706 | s++; | |
90771dc0 NC |
4707 | { |
4708 | const char tmp = *s++; | |
4709 | if (tmp == '=') { | |
4710 | /* was this !=~ where !~ was meant? | |
4711 | * warn on m:!=~\s+([/?]|[msy]\W|tr\W): */ | |
4712 | ||
4713 | if (*s == '~' && ckWARN(WARN_SYNTAX)) { | |
4714 | const char *t = s+1; | |
4715 | ||
4716 | while (t < PL_bufend && isSPACE(*t)) | |
4717 | ++t; | |
4718 | ||
4719 | if (*t == '/' || *t == '?' || | |
4720 | ((*t == 'm' || *t == 's' || *t == 'y') | |
4721 | && !isALNUM(t[1])) || | |
4722 | (*t == 't' && t[1] == 'r' && !isALNUM(t[2]))) | |
4723 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4724 | "!=~ should be !~"); | |
4725 | } | |
4726 | Eop(OP_NE); | |
4727 | } | |
4728 | if (tmp == '~') | |
4729 | PMop(OP_NOT); | |
4730 | } | |
378cc40b LW |
4731 | s--; |
4732 | OPERATOR('!'); | |
4733 | case '<': | |
3280af22 | 4734 | if (PL_expect != XOPERATOR) { |
93a17b20 | 4735 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 4736 | check_uni(); |
79072805 LW |
4737 | if (s[1] == '<') |
4738 | s = scan_heredoc(s); | |
4739 | else | |
4740 | s = scan_inputsymbol(s); | |
4741 | TERM(sublex_start()); | |
378cc40b LW |
4742 | } |
4743 | s++; | |
90771dc0 NC |
4744 | { |
4745 | char tmp = *s++; | |
4746 | if (tmp == '<') | |
4747 | SHop(OP_LEFT_SHIFT); | |
4748 | if (tmp == '=') { | |
4749 | tmp = *s++; | |
4750 | if (tmp == '>') | |
4751 | Eop(OP_NCMP); | |
4752 | s--; | |
4753 | Rop(OP_LE); | |
4754 | } | |
395c3793 | 4755 | } |
378cc40b | 4756 | s--; |
79072805 | 4757 | Rop(OP_LT); |
378cc40b LW |
4758 | case '>': |
4759 | s++; | |
90771dc0 NC |
4760 | { |
4761 | const char tmp = *s++; | |
4762 | if (tmp == '>') | |
4763 | SHop(OP_RIGHT_SHIFT); | |
d4c19fe8 | 4764 | else if (tmp == '=') |
90771dc0 NC |
4765 | Rop(OP_GE); |
4766 | } | |
378cc40b | 4767 | s--; |
79072805 | 4768 | Rop(OP_GT); |
378cc40b LW |
4769 | |
4770 | case '$': | |
bbce6d69 | 4771 | CLINE; |
4772 | ||
3280af22 NIS |
4773 | if (PL_expect == XOPERATOR) { |
4774 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4775 | PL_expect = XTERM; | |
c445ea15 | 4776 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4777 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4778 | } |
8990e307 | 4779 | } |
a0d0e21e | 4780 | |
7e2040f0 | 4781 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-", s[2]))) { |
3280af22 | 4782 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
4783 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
4784 | sizeof PL_tokenbuf - 1, FALSE); | |
4785 | if (PL_expect == XOPERATOR) | |
4786 | no_op("Array length", s); | |
3280af22 | 4787 | if (!PL_tokenbuf[1]) |
a0d0e21e | 4788 | PREREF(DOLSHARP); |
3280af22 NIS |
4789 | PL_expect = XOPERATOR; |
4790 | PL_pending_ident = '#'; | |
463ee0b2 | 4791 | TOKEN(DOLSHARP); |
79072805 | 4792 | } |
bbce6d69 | 4793 | |
3280af22 | 4794 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
4795 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
4796 | sizeof PL_tokenbuf - 1, FALSE); | |
4797 | if (PL_expect == XOPERATOR) | |
4798 | no_op("Scalar", s); | |
3280af22 NIS |
4799 | if (!PL_tokenbuf[1]) { |
4800 | if (s == PL_bufend) | |
bbce6d69 | 4801 | yyerror("Final $ should be \\$ or $name"); |
4802 | PREREF('$'); | |
8990e307 | 4803 | } |
a0d0e21e | 4804 | |
bbce6d69 | 4805 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 4806 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
bbce6d69 | 4807 | yylval.opval = newSVOP(OP_CONST, 0, |
fc15ae8f | 4808 | newSViv(CopARYBASE_get(&PL_compiling))); |
bbce6d69 | 4809 | yylval.opval->op_private = OPpCONST_ARYBASE; |
4810 | TERM(THING); | |
4811 | } | |
4812 | ||
ff68c719 | 4813 | d = s; |
90771dc0 NC |
4814 | { |
4815 | const char tmp = *s; | |
4816 | if (PL_lex_state == LEX_NORMAL) | |
29595ff2 | 4817 | s = SKIPSPACE1(s); |
ff68c719 | 4818 | |
90771dc0 NC |
4819 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) |
4820 | && intuit_more(s)) { | |
4821 | if (*s == '[') { | |
4822 | PL_tokenbuf[0] = '@'; | |
4823 | if (ckWARN(WARN_SYNTAX)) { | |
c35e046a AL |
4824 | char *t = s+1; |
4825 | ||
4826 | while (isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$') | |
4827 | t++; | |
90771dc0 | 4828 | if (*t++ == ',') { |
29595ff2 | 4829 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
90771dc0 NC |
4830 | while (t < PL_bufend && *t != ']') |
4831 | t++; | |
9014280d | 4832 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
90771dc0 | 4833 | "Multidimensional syntax %.*s not supported", |
36c7798d | 4834 | (int)((t - PL_bufptr) + 1), PL_bufptr); |
90771dc0 | 4835 | } |
748a9306 | 4836 | } |
93a17b20 | 4837 | } |
90771dc0 NC |
4838 | else if (*s == '{') { |
4839 | char *t; | |
4840 | PL_tokenbuf[0] = '%'; | |
4841 | if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX) | |
4842 | && (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
4843 | { | |
4844 | char tmpbuf[sizeof PL_tokenbuf]; | |
c35e046a AL |
4845 | do { |
4846 | t++; | |
4847 | } while (isSPACE(*t)); | |
90771dc0 | 4848 | if (isIDFIRST_lazy_if(t,UTF)) { |
780a5241 | 4849 | STRLEN len; |
90771dc0 | 4850 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, |
780a5241 | 4851 | &len); |
c35e046a AL |
4852 | while (isSPACE(*t)) |
4853 | t++; | |
780a5241 | 4854 | if (*t == ';' && get_cvn_flags(tmpbuf, len, 0)) |
90771dc0 NC |
4855 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
4856 | "You need to quote \"%s\"", | |
4857 | tmpbuf); | |
4858 | } | |
4859 | } | |
4860 | } | |
93a17b20 | 4861 | } |
bbce6d69 | 4862 | |
90771dc0 NC |
4863 | PL_expect = XOPERATOR; |
4864 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { | |
4865 | const bool islop = (PL_last_lop == PL_oldoldbufptr); | |
4866 | if (!islop || PL_last_lop_op == OP_GREPSTART) | |
4867 | PL_expect = XOPERATOR; | |
4868 | else if (strchr("$@\"'`q", *s)) | |
4869 | PL_expect = XTERM; /* e.g. print $fh "foo" */ | |
4870 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) | |
4871 | PL_expect = XTERM; /* e.g. print $fh &sub */ | |
4872 | else if (isIDFIRST_lazy_if(s,UTF)) { | |
4873 | char tmpbuf[sizeof PL_tokenbuf]; | |
4874 | int t2; | |
4875 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
5458a98a | 4876 | if ((t2 = keyword(tmpbuf, len, 0))) { |
90771dc0 NC |
4877 | /* binary operators exclude handle interpretations */ |
4878 | switch (t2) { | |
4879 | case -KEY_x: | |
4880 | case -KEY_eq: | |
4881 | case -KEY_ne: | |
4882 | case -KEY_gt: | |
4883 | case -KEY_lt: | |
4884 | case -KEY_ge: | |
4885 | case -KEY_le: | |
4886 | case -KEY_cmp: | |
4887 | break; | |
4888 | default: | |
4889 | PL_expect = XTERM; /* e.g. print $fh length() */ | |
4890 | break; | |
4891 | } | |
4892 | } | |
4893 | else { | |
4894 | PL_expect = XTERM; /* e.g. print $fh subr() */ | |
84902520 TB |
4895 | } |
4896 | } | |
90771dc0 NC |
4897 | else if (isDIGIT(*s)) |
4898 | PL_expect = XTERM; /* e.g. print $fh 3 */ | |
4899 | else if (*s == '.' && isDIGIT(s[1])) | |
4900 | PL_expect = XTERM; /* e.g. print $fh .3 */ | |
4901 | else if ((*s == '?' || *s == '-' || *s == '+') | |
4902 | && !isSPACE(s[1]) && s[1] != '=') | |
4903 | PL_expect = XTERM; /* e.g. print $fh -1 */ | |
4904 | else if (*s == '/' && !isSPACE(s[1]) && s[1] != '=' | |
4905 | && s[1] != '/') | |
4906 | PL_expect = XTERM; /* e.g. print $fh /.../ | |
4907 | XXX except DORDOR operator | |
4908 | */ | |
4909 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) | |
4910 | && s[2] != '=') | |
4911 | PL_expect = XTERM; /* print $fh <<"EOF" */ | |
93a17b20 | 4912 | } |
bbce6d69 | 4913 | } |
3280af22 | 4914 | PL_pending_ident = '$'; |
79072805 | 4915 | TOKEN('$'); |
378cc40b LW |
4916 | |
4917 | case '@': | |
3280af22 | 4918 | if (PL_expect == XOPERATOR) |
bbce6d69 | 4919 | no_op("Array", s); |
3280af22 NIS |
4920 | PL_tokenbuf[0] = '@'; |
4921 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
4922 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 4923 | PREREF('@'); |
4924 | } | |
3280af22 | 4925 | if (PL_lex_state == LEX_NORMAL) |
29595ff2 | 4926 | s = SKIPSPACE1(s); |
3280af22 | 4927 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 4928 | if (*s == '{') |
3280af22 | 4929 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
4930 | |
4931 | /* Warn about @ where they meant $. */ | |
041457d9 DM |
4932 | if (*s == '[' || *s == '{') { |
4933 | if (ckWARN(WARN_SYNTAX)) { | |
f54cb97a | 4934 | const char *t = s + 1; |
7e2040f0 | 4935 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
4936 | t++; |
4937 | if (*t == '}' || *t == ']') { | |
4938 | t++; | |
29595ff2 | 4939 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
9014280d | 4940 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 4941 | "Scalar value %.*s better written as $%.*s", |
36c7798d DM |
4942 | (int)(t-PL_bufptr), PL_bufptr, |
4943 | (int)(t-PL_bufptr-1), PL_bufptr+1); | |
a0d0e21e | 4944 | } |
93a17b20 LW |
4945 | } |
4946 | } | |
463ee0b2 | 4947 | } |
3280af22 | 4948 | PL_pending_ident = '@'; |
79072805 | 4949 | TERM('@'); |
378cc40b | 4950 | |
c963b151 | 4951 | case '/': /* may be division, defined-or, or pattern */ |
6f33ba73 RGS |
4952 | if (PL_expect == XTERMORDORDOR && s[1] == '/') { |
4953 | s += 2; | |
4954 | AOPERATOR(DORDOR); | |
4955 | } | |
c963b151 BD |
4956 | case '?': /* may either be conditional or pattern */ |
4957 | if(PL_expect == XOPERATOR) { | |
90771dc0 | 4958 | char tmp = *s++; |
c963b151 BD |
4959 | if(tmp == '?') { |
4960 | OPERATOR('?'); | |
4961 | } | |
4962 | else { | |
4963 | tmp = *s++; | |
4964 | if(tmp == '/') { | |
4965 | /* A // operator. */ | |
4966 | AOPERATOR(DORDOR); | |
4967 | } | |
4968 | else { | |
4969 | s--; | |
4970 | Mop(OP_DIVIDE); | |
4971 | } | |
4972 | } | |
4973 | } | |
4974 | else { | |
4975 | /* Disable warning on "study /blah/" */ | |
4976 | if (PL_oldoldbufptr == PL_last_uni | |
4977 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
4978 | || memNE(PL_last_uni, "study", 5) | |
4979 | || isALNUM_lazy_if(PL_last_uni+5,UTF) | |
4980 | )) | |
4981 | check_uni(); | |
4982 | s = scan_pat(s,OP_MATCH); | |
4983 | TERM(sublex_start()); | |
4984 | } | |
378cc40b LW |
4985 | |
4986 | case '.': | |
51882d45 GS |
4987 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
4988 | #ifdef PERL_STRICT_CR | |
4989 | && s[1] == '\n' | |
4990 | #else | |
4991 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
4992 | #endif | |
4993 | && (s == PL_linestart || s[-1] == '\n') ) | |
4994 | { | |
3280af22 NIS |
4995 | PL_lex_formbrack = 0; |
4996 | PL_expect = XSTATE; | |
79072805 LW |
4997 | goto rightbracket; |
4998 | } | |
3280af22 | 4999 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
90771dc0 | 5000 | char tmp = *s++; |
a687059c LW |
5001 | if (*s == tmp) { |
5002 | s++; | |
2f3197b3 LW |
5003 | if (*s == tmp) { |
5004 | s++; | |
79072805 | 5005 | yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
5006 | } |
5007 | else | |
79072805 | 5008 | yylval.ival = 0; |
378cc40b | 5009 | OPERATOR(DOTDOT); |
a687059c | 5010 | } |
3280af22 | 5011 | if (PL_expect != XOPERATOR) |
2f3197b3 | 5012 | check_uni(); |
79072805 | 5013 | Aop(OP_CONCAT); |
378cc40b LW |
5014 | } |
5015 | /* FALL THROUGH */ | |
5016 | case '0': case '1': case '2': case '3': case '4': | |
5017 | case '5': case '6': case '7': case '8': case '9': | |
b73d6f50 | 5018 | s = scan_num(s, &yylval); |
931e0695 | 5019 | DEBUG_T( { printbuf("### Saw number in %s\n", s); } ); |
3280af22 | 5020 | if (PL_expect == XOPERATOR) |
8990e307 | 5021 | no_op("Number",s); |
79072805 LW |
5022 | TERM(THING); |
5023 | ||
5024 | case '\'': | |
5db06880 | 5025 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5026 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
5027 | if (PL_expect == XOPERATOR) { |
5028 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
5029 | PL_expect = XTERM; | |
c445ea15 | 5030 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 5031 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 5032 | } |
463ee0b2 | 5033 | else |
8990e307 | 5034 | no_op("String",s); |
463ee0b2 | 5035 | } |
79072805 | 5036 | if (!s) |
d4c19fe8 | 5037 | missingterm(NULL); |
79072805 LW |
5038 | yylval.ival = OP_CONST; |
5039 | TERM(sublex_start()); | |
5040 | ||
5041 | case '"': | |
5db06880 | 5042 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5043 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
5044 | if (PL_expect == XOPERATOR) { |
5045 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
5046 | PL_expect = XTERM; | |
c445ea15 | 5047 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 5048 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 5049 | } |
463ee0b2 | 5050 | else |
8990e307 | 5051 | no_op("String",s); |
463ee0b2 | 5052 | } |
79072805 | 5053 | if (!s) |
d4c19fe8 | 5054 | missingterm(NULL); |
4633a7c4 | 5055 | yylval.ival = OP_CONST; |
cfd0369c NC |
5056 | /* FIXME. I think that this can be const if char *d is replaced by |
5057 | more localised variables. */ | |
3280af22 | 5058 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
63cd0674 | 5059 | if (*d == '$' || *d == '@' || *d == '\\' || !UTF8_IS_INVARIANT((U8)*d)) { |
4633a7c4 LW |
5060 | yylval.ival = OP_STRINGIFY; |
5061 | break; | |
5062 | } | |
5063 | } | |
79072805 LW |
5064 | TERM(sublex_start()); |
5065 | ||
5066 | case '`': | |
5db06880 | 5067 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5068 | DEBUG_T( { printbuf("### Saw backtick string before %s\n", s); } ); |
3280af22 | 5069 | if (PL_expect == XOPERATOR) |
8990e307 | 5070 | no_op("Backticks",s); |
79072805 | 5071 | if (!s) |
d4c19fe8 | 5072 | missingterm(NULL); |
9b201d7d | 5073 | readpipe_override(); |
79072805 LW |
5074 | TERM(sublex_start()); |
5075 | ||
5076 | case '\\': | |
5077 | s++; | |
041457d9 | 5078 | if (PL_lex_inwhat && isDIGIT(*s) && ckWARN(WARN_SYNTAX)) |
9014280d | 5079 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression", |
599cee73 | 5080 | *s, *s); |
3280af22 | 5081 | if (PL_expect == XOPERATOR) |
8990e307 | 5082 | no_op("Backslash",s); |
79072805 LW |
5083 | OPERATOR(REFGEN); |
5084 | ||
a7cb1f99 | 5085 | case 'v': |
e526c9e6 | 5086 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
f54cb97a | 5087 | char *start = s + 2; |
dd629d5b | 5088 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
5089 | start++; |
5090 | if (*start == '.' && isDIGIT(start[1])) { | |
b73d6f50 | 5091 | s = scan_num(s, &yylval); |
a7cb1f99 GS |
5092 | TERM(THING); |
5093 | } | |
e526c9e6 | 5094 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
6f33ba73 RGS |
5095 | else if (!isALPHA(*start) && (PL_expect == XTERM |
5096 | || PL_expect == XREF || PL_expect == XSTATE | |
5097 | || PL_expect == XTERMORDORDOR)) { | |
d4c19fe8 | 5098 | /* XXX Use gv_fetchpvn rather than stomping on a const string */ |
f54cb97a | 5099 | const char c = *start; |
e526c9e6 GS |
5100 | GV *gv; |
5101 | *start = '\0'; | |
f776e3cd | 5102 | gv = gv_fetchpv(s, 0, SVt_PVCV); |
e526c9e6 GS |
5103 | *start = c; |
5104 | if (!gv) { | |
b73d6f50 | 5105 | s = scan_num(s, &yylval); |
e526c9e6 GS |
5106 | TERM(THING); |
5107 | } | |
5108 | } | |
a7cb1f99 GS |
5109 | } |
5110 | goto keylookup; | |
79072805 | 5111 | case 'x': |
3280af22 | 5112 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
5113 | s++; |
5114 | Mop(OP_REPEAT); | |
2f3197b3 | 5115 | } |
79072805 LW |
5116 | goto keylookup; |
5117 | ||
378cc40b | 5118 | case '_': |
79072805 LW |
5119 | case 'a': case 'A': |
5120 | case 'b': case 'B': | |
5121 | case 'c': case 'C': | |
5122 | case 'd': case 'D': | |
5123 | case 'e': case 'E': | |
5124 | case 'f': case 'F': | |
5125 | case 'g': case 'G': | |
5126 | case 'h': case 'H': | |
5127 | case 'i': case 'I': | |
5128 | case 'j': case 'J': | |
5129 | case 'k': case 'K': | |
5130 | case 'l': case 'L': | |
5131 | case 'm': case 'M': | |
5132 | case 'n': case 'N': | |
5133 | case 'o': case 'O': | |
5134 | case 'p': case 'P': | |
5135 | case 'q': case 'Q': | |
5136 | case 'r': case 'R': | |
5137 | case 's': case 'S': | |
5138 | case 't': case 'T': | |
5139 | case 'u': case 'U': | |
a7cb1f99 | 5140 | case 'V': |
79072805 LW |
5141 | case 'w': case 'W': |
5142 | case 'X': | |
5143 | case 'y': case 'Y': | |
5144 | case 'z': case 'Z': | |
5145 | ||
49dc05e3 | 5146 | keylookup: { |
90771dc0 | 5147 | I32 tmp; |
10edeb5d JH |
5148 | |
5149 | orig_keyword = 0; | |
5150 | gv = NULL; | |
5151 | gvp = NULL; | |
49dc05e3 | 5152 | |
3280af22 NIS |
5153 | PL_bufptr = s; |
5154 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 5155 | |
5156 | /* Some keywords can be followed by any delimiter, including ':' */ | |
155aba94 GS |
5157 | tmp = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
5158 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || | |
5159 | (PL_tokenbuf[0] == 'q' && | |
5160 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 5161 | |
5162 | /* x::* is just a word, unless x is "CORE" */ | |
3280af22 | 5163 | if (!tmp && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
5164 | goto just_a_word; |
5165 | ||
3643fb5f | 5166 | d = s; |
3280af22 | 5167 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
5168 | d++; /* no comments skipped here, or s### is misparsed */ |
5169 | ||
5170 | /* Is this a label? */ | |
3280af22 NIS |
5171 | if (!tmp && PL_expect == XSTATE |
5172 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
8ebc5c01 | 5173 | s = d + 1; |
63031daf | 5174 | yylval.pval = CopLABEL_alloc(PL_tokenbuf); |
8ebc5c01 | 5175 | CLINE; |
5176 | TOKEN(LABEL); | |
3643fb5f CS |
5177 | } |
5178 | ||
5179 | /* Check for keywords */ | |
5458a98a | 5180 | tmp = keyword(PL_tokenbuf, len, 0); |
748a9306 LW |
5181 | |
5182 | /* Is this a word before a => operator? */ | |
1c3923b3 | 5183 | if (*d == '=' && d[1] == '>') { |
748a9306 | 5184 | CLINE; |
d0a148a6 NC |
5185 | yylval.opval |
5186 | = (OP*)newSVOP(OP_CONST, 0, | |
5187 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
748a9306 LW |
5188 | yylval.opval->op_private = OPpCONST_BARE; |
5189 | TERM(WORD); | |
5190 | } | |
5191 | ||
a0d0e21e | 5192 | if (tmp < 0) { /* second-class keyword? */ |
cbbf8932 AL |
5193 | GV *ogv = NULL; /* override (winner) */ |
5194 | GV *hgv = NULL; /* hidden (loser) */ | |
3280af22 | 5195 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 5196 | CV *cv; |
90e5519e | 5197 | if ((gv = gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVCV)) && |
56f7f34b CS |
5198 | (cv = GvCVu(gv))) |
5199 | { | |
5200 | if (GvIMPORTED_CV(gv)) | |
5201 | ogv = gv; | |
5202 | else if (! CvMETHOD(cv)) | |
5203 | hgv = gv; | |
5204 | } | |
5205 | if (!ogv && | |
3280af22 | 5206 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
9e0d86f8 | 5207 | (gv = *gvp) && isGV_with_GP(gv) && |
56f7f34b CS |
5208 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
5209 | { | |
5210 | ogv = gv; | |
5211 | } | |
5212 | } | |
5213 | if (ogv) { | |
30fe34ed | 5214 | orig_keyword = tmp; |
56f7f34b | 5215 | tmp = 0; /* overridden by import or by GLOBAL */ |
6e7b2336 GS |
5216 | } |
5217 | else if (gv && !gvp | |
5218 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
47f9f84c | 5219 | && GvCVu(gv)) |
6e7b2336 GS |
5220 | { |
5221 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 5222 | } |
56f7f34b CS |
5223 | else { /* no override */ |
5224 | tmp = -tmp; | |
ac206dc8 | 5225 | if (tmp == KEY_dump && ckWARN(WARN_MISC)) { |
9014280d | 5226 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
ac206dc8 RGS |
5227 | "dump() better written as CORE::dump()"); |
5228 | } | |
a0714e2c | 5229 | gv = NULL; |
56f7f34b | 5230 | gvp = 0; |
041457d9 DM |
5231 | if (hgv && tmp != KEY_x && tmp != KEY_CORE |
5232 | && ckWARN(WARN_AMBIGUOUS)) /* never ambiguous */ | |
9014280d | 5233 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 5234 | "Ambiguous call resolved as CORE::%s(), %s", |
2f3ca594 | 5235 | GvENAME(hgv), "qualify as such or use &"); |
49dc05e3 | 5236 | } |
a0d0e21e LW |
5237 | } |
5238 | ||
5239 | reserved_word: | |
5240 | switch (tmp) { | |
79072805 LW |
5241 | |
5242 | default: /* not a keyword */ | |
0bfa2a8a NC |
5243 | /* Trade off - by using this evil construction we can pull the |
5244 | variable gv into the block labelled keylookup. If not, then | |
5245 | we have to give it function scope so that the goto from the | |
5246 | earlier ':' case doesn't bypass the initialisation. */ | |
5247 | if (0) { | |
5248 | just_a_word_zero_gv: | |
5249 | gv = NULL; | |
5250 | gvp = NULL; | |
8bee0991 | 5251 | orig_keyword = 0; |
0bfa2a8a | 5252 | } |
93a17b20 | 5253 | just_a_word: { |
96e4d5b1 | 5254 | SV *sv; |
ce29ac45 | 5255 | int pkgname = 0; |
f54cb97a | 5256 | const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
5069cc75 | 5257 | CV *cv; |
5db06880 | 5258 | #ifdef PERL_MAD |
cd81e915 | 5259 | SV *nextPL_nextwhite = 0; |
5db06880 NC |
5260 | #endif |
5261 | ||
8990e307 LW |
5262 | |
5263 | /* Get the rest if it looks like a package qualifier */ | |
5264 | ||
155aba94 | 5265 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 5266 | STRLEN morelen; |
3280af22 | 5267 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
5268 | TRUE, &morelen); |
5269 | if (!morelen) | |
cea2e8a9 | 5270 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 5271 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 5272 | len += morelen; |
ce29ac45 | 5273 | pkgname = 1; |
a0d0e21e | 5274 | } |
8990e307 | 5275 | |
3280af22 NIS |
5276 | if (PL_expect == XOPERATOR) { |
5277 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 5278 | CopLINE_dec(PL_curcop); |
9014280d | 5279 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 5280 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
5281 | } |
5282 | else | |
54310121 | 5283 | no_op("Bareword",s); |
463ee0b2 | 5284 | } |
8990e307 | 5285 | |
c3e0f903 GS |
5286 | /* Look for a subroutine with this name in current package, |
5287 | unless name is "Foo::", in which case Foo is a bearword | |
5288 | (and a package name). */ | |
5289 | ||
5db06880 | 5290 | if (len > 2 && !PL_madskills && |
3280af22 | 5291 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 5292 | { |
f776e3cd | 5293 | if (ckWARN(WARN_BAREWORD) |
90e5519e | 5294 | && ! gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVHV)) |
9014280d | 5295 | Perl_warner(aTHX_ packWARN(WARN_BAREWORD), |
599cee73 | 5296 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 5297 | PL_tokenbuf); |
c3e0f903 | 5298 | len -= 2; |
3280af22 | 5299 | PL_tokenbuf[len] = '\0'; |
a0714e2c | 5300 | gv = NULL; |
c3e0f903 GS |
5301 | gvp = 0; |
5302 | } | |
5303 | else { | |
62d55b22 NC |
5304 | if (!gv) { |
5305 | /* Mustn't actually add anything to a symbol table. | |
5306 | But also don't want to "initialise" any placeholder | |
5307 | constants that might already be there into full | |
5308 | blown PVGVs with attached PVCV. */ | |
90e5519e NC |
5309 | gv = gv_fetchpvn_flags(PL_tokenbuf, len, |
5310 | GV_NOADD_NOINIT, SVt_PVCV); | |
62d55b22 | 5311 | } |
b3d904f3 | 5312 | len = 0; |
c3e0f903 GS |
5313 | } |
5314 | ||
5315 | /* if we saw a global override before, get the right name */ | |
8990e307 | 5316 | |
49dc05e3 | 5317 | if (gvp) { |
396482e1 | 5318 | sv = newSVpvs("CORE::GLOBAL::"); |
3280af22 | 5319 | sv_catpv(sv,PL_tokenbuf); |
49dc05e3 | 5320 | } |
8a7a129d NC |
5321 | else { |
5322 | /* If len is 0, newSVpv does strlen(), which is correct. | |
5323 | If len is non-zero, then it will be the true length, | |
5324 | and so the scalar will be created correctly. */ | |
5325 | sv = newSVpv(PL_tokenbuf,len); | |
5326 | } | |
5db06880 | 5327 | #ifdef PERL_MAD |
cd81e915 NC |
5328 | if (PL_madskills && !PL_thistoken) { |
5329 | char *start = SvPVX(PL_linestr) + PL_realtokenstart; | |
5330 | PL_thistoken = newSVpv(start,s - start); | |
5331 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
5332 | } |
5333 | #endif | |
8990e307 | 5334 | |
a0d0e21e LW |
5335 | /* Presume this is going to be a bareword of some sort. */ |
5336 | ||
5337 | CLINE; | |
49dc05e3 | 5338 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
a0d0e21e | 5339 | yylval.opval->op_private = OPpCONST_BARE; |
8f8cf39c JH |
5340 | /* UTF-8 package name? */ |
5341 | if (UTF && !IN_BYTES && | |
95a20fc0 | 5342 | is_utf8_string((U8*)SvPVX_const(sv), SvCUR(sv))) |
8f8cf39c | 5343 | SvUTF8_on(sv); |
a0d0e21e | 5344 | |
c3e0f903 GS |
5345 | /* And if "Foo::", then that's what it certainly is. */ |
5346 | ||
5347 | if (len) | |
5348 | goto safe_bareword; | |
5349 | ||
5069cc75 NC |
5350 | /* Do the explicit type check so that we don't need to force |
5351 | the initialisation of the symbol table to have a real GV. | |
5352 | Beware - gv may not really be a PVGV, cv may not really be | |
5353 | a PVCV, (because of the space optimisations that gv_init | |
5354 | understands) But they're true if for this symbol there is | |
5355 | respectively a typeglob and a subroutine. | |
5356 | */ | |
5357 | cv = gv ? ((SvTYPE(gv) == SVt_PVGV) | |
5358 | /* Real typeglob, so get the real subroutine: */ | |
5359 | ? GvCVu(gv) | |
5360 | /* A proxy for a subroutine in this package? */ | |
5361 | : SvOK(gv) ? (CV *) gv : NULL) | |
5362 | : NULL; | |
5363 | ||
8990e307 LW |
5364 | /* See if it's the indirect object for a list operator. */ |
5365 | ||
3280af22 NIS |
5366 | if (PL_oldoldbufptr && |
5367 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
5368 | (PL_oldoldbufptr == PL_last_lop |
5369 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 5370 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
5371 | (PL_expect == XREF || |
5372 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 5373 | { |
748a9306 LW |
5374 | bool immediate_paren = *s == '('; |
5375 | ||
a0d0e21e | 5376 | /* (Now we can afford to cross potential line boundary.) */ |
cd81e915 | 5377 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5db06880 | 5378 | #ifdef PERL_MAD |
cd81e915 | 5379 | PL_nextwhite = nextPL_nextwhite; /* assume no & deception */ |
5db06880 | 5380 | #endif |
a0d0e21e LW |
5381 | |
5382 | /* Two barewords in a row may indicate method call. */ | |
5383 | ||
62d55b22 NC |
5384 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && |
5385 | (tmp = intuit_method(s, gv, cv))) | |
bbf60fe6 | 5386 | return REPORT(tmp); |
a0d0e21e LW |
5387 | |
5388 | /* If not a declared subroutine, it's an indirect object. */ | |
5389 | /* (But it's an indir obj regardless for sort.) */ | |
7294df96 | 5390 | /* Also, if "_" follows a filetest operator, it's a bareword */ |
a0d0e21e | 5391 | |
7294df96 RGS |
5392 | if ( |
5393 | ( !immediate_paren && (PL_last_lop_op == OP_SORT || | |
5069cc75 | 5394 | ((!gv || !cv) && |
a9ef352a | 5395 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 5396 | PL_last_lop_op != OP_GREPSTART)))) |
7294df96 RGS |
5397 | || (PL_tokenbuf[0] == '_' && PL_tokenbuf[1] == '\0' |
5398 | && ((PL_opargs[PL_last_lop_op] & OA_CLASS_MASK) == OA_FILESTATOP)) | |
5399 | ) | |
a9ef352a | 5400 | { |
3280af22 | 5401 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 5402 | goto bareword; |
93a17b20 LW |
5403 | } |
5404 | } | |
8990e307 | 5405 | |
3280af22 | 5406 | PL_expect = XOPERATOR; |
5db06880 NC |
5407 | #ifdef PERL_MAD |
5408 | if (isSPACE(*s)) | |
cd81e915 NC |
5409 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5410 | PL_nextwhite = nextPL_nextwhite; | |
5db06880 | 5411 | #else |
8990e307 | 5412 | s = skipspace(s); |
5db06880 | 5413 | #endif |
1c3923b3 GS |
5414 | |
5415 | /* Is this a word before a => operator? */ | |
ce29ac45 | 5416 | if (*s == '=' && s[1] == '>' && !pkgname) { |
1c3923b3 GS |
5417 | CLINE; |
5418 | sv_setpv(((SVOP*)yylval.opval)->op_sv, PL_tokenbuf); | |
0064a8a9 | 5419 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
7948272d | 5420 | SvUTF8_on(((SVOP*)yylval.opval)->op_sv); |
1c3923b3 GS |
5421 | TERM(WORD); |
5422 | } | |
5423 | ||
5424 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 5425 | if (*s == '(') { |
79072805 | 5426 | CLINE; |
5069cc75 | 5427 | if (cv) { |
c35e046a AL |
5428 | d = s + 1; |
5429 | while (SPACE_OR_TAB(*d)) | |
5430 | d++; | |
62d55b22 | 5431 | if (*d == ')' && (sv = gv_const_sv(gv))) { |
96e4d5b1 | 5432 | s = d + 1; |
c631f32b | 5433 | goto its_constant; |
96e4d5b1 | 5434 | } |
5435 | } | |
5db06880 NC |
5436 | #ifdef PERL_MAD |
5437 | if (PL_madskills) { | |
cd81e915 NC |
5438 | PL_nextwhite = PL_thiswhite; |
5439 | PL_thiswhite = 0; | |
5db06880 | 5440 | } |
cd81e915 | 5441 | start_force(PL_curforce); |
5db06880 | 5442 | #endif |
9ded7720 | 5443 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 5444 | PL_expect = XOPERATOR; |
5db06880 NC |
5445 | #ifdef PERL_MAD |
5446 | if (PL_madskills) { | |
cd81e915 NC |
5447 | PL_nextwhite = nextPL_nextwhite; |
5448 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5449 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5450 | } |
5451 | #endif | |
93a17b20 | 5452 | force_next(WORD); |
c07a80fd | 5453 | yylval.ival = 0; |
463ee0b2 | 5454 | TOKEN('&'); |
79072805 | 5455 | } |
93a17b20 | 5456 | |
a0d0e21e | 5457 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 5458 | |
62d55b22 | 5459 | if ((*s == '$' || *s == '{') && (!gv || !cv)) { |
3280af22 NIS |
5460 | PL_last_lop = PL_oldbufptr; |
5461 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 5462 | PREBLOCK(METHOD); |
463ee0b2 LW |
5463 | } |
5464 | ||
8990e307 LW |
5465 | /* If followed by a bareword, see if it looks like indir obj. */ |
5466 | ||
30fe34ed RGS |
5467 | if (!orig_keyword |
5468 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
62d55b22 | 5469 | && (tmp = intuit_method(s, gv, cv))) |
bbf60fe6 | 5470 | return REPORT(tmp); |
93a17b20 | 5471 | |
8990e307 LW |
5472 | /* Not a method, so call it a subroutine (if defined) */ |
5473 | ||
5069cc75 | 5474 | if (cv) { |
0453d815 | 5475 | if (lastchar == '-' && ckWARN_d(WARN_AMBIGUOUS)) |
9014280d | 5476 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5477 | "Ambiguous use of -%s resolved as -&%s()", |
3280af22 | 5478 | PL_tokenbuf, PL_tokenbuf); |
89bfa8cd | 5479 | /* Check for a constant sub */ |
c631f32b | 5480 | if ((sv = gv_const_sv(gv))) { |
96e4d5b1 | 5481 | its_constant: |
5482 | SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv); | |
b37c2d43 | 5483 | ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc_simple(sv); |
96e4d5b1 | 5484 | yylval.opval->op_private = 0; |
5485 | TOKEN(WORD); | |
89bfa8cd | 5486 | } |
5487 | ||
a5f75d66 | 5488 | /* Resolve to GV now. */ |
62d55b22 | 5489 | if (SvTYPE(gv) != SVt_PVGV) { |
b3d904f3 | 5490 | gv = gv_fetchpv(PL_tokenbuf, 0, SVt_PVCV); |
62d55b22 NC |
5491 | assert (SvTYPE(gv) == SVt_PVGV); |
5492 | /* cv must have been some sort of placeholder, so | |
5493 | now needs replacing with a real code reference. */ | |
5494 | cv = GvCV(gv); | |
5495 | } | |
5496 | ||
a5f75d66 AD |
5497 | op_free(yylval.opval); |
5498 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
9675f7ac | 5499 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
7a52d87a | 5500 | PL_last_lop = PL_oldbufptr; |
bf848113 | 5501 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 | 5502 | /* Is there a prototype? */ |
5db06880 NC |
5503 | if ( |
5504 | #ifdef PERL_MAD | |
5505 | cv && | |
5506 | #endif | |
d9f2850e RGS |
5507 | SvPOK(cv)) |
5508 | { | |
5f66b61c AL |
5509 | STRLEN protolen; |
5510 | const char *proto = SvPV_const((SV*)cv, protolen); | |
5511 | if (!protolen) | |
4633a7c4 | 5512 | TERM(FUNC0SUB); |
8c28b960 | 5513 | if ((*proto == '$' || *proto == '_') && proto[1] == '\0') |
4633a7c4 | 5514 | OPERATOR(UNIOPSUB); |
0f5d0394 AE |
5515 | while (*proto == ';') |
5516 | proto++; | |
7a52d87a | 5517 | if (*proto == '&' && *s == '{') { |
10edeb5d JH |
5518 | sv_setpv(PL_subname, |
5519 | (const char *) | |
5520 | (PL_curstash ? | |
5521 | "__ANON__" : "__ANON__::__ANON__")); | |
4633a7c4 LW |
5522 | PREBLOCK(LSTOPSUB); |
5523 | } | |
a9ef352a | 5524 | } |
5db06880 NC |
5525 | #ifdef PERL_MAD |
5526 | { | |
5527 | if (PL_madskills) { | |
cd81e915 NC |
5528 | PL_nextwhite = PL_thiswhite; |
5529 | PL_thiswhite = 0; | |
5db06880 | 5530 | } |
cd81e915 | 5531 | start_force(PL_curforce); |
5db06880 NC |
5532 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
5533 | PL_expect = XTERM; | |
5534 | if (PL_madskills) { | |
cd81e915 NC |
5535 | PL_nextwhite = nextPL_nextwhite; |
5536 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5537 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5538 | } |
5539 | force_next(WORD); | |
5540 | TOKEN(NOAMP); | |
5541 | } | |
5542 | } | |
5543 | ||
5544 | /* Guess harder when madskills require "best effort". */ | |
5545 | if (PL_madskills && (!gv || !GvCVu(gv))) { | |
5546 | int probable_sub = 0; | |
5547 | if (strchr("\"'`$@%0123456789!*+{[<", *s)) | |
5548 | probable_sub = 1; | |
5549 | else if (isALPHA(*s)) { | |
5550 | char tmpbuf[1024]; | |
5551 | STRLEN tmplen; | |
5552 | d = s; | |
5553 | d = scan_word(d, tmpbuf, sizeof tmpbuf, TRUE, &tmplen); | |
5458a98a | 5554 | if (!keyword(tmpbuf, tmplen, 0)) |
5db06880 NC |
5555 | probable_sub = 1; |
5556 | else { | |
5557 | while (d < PL_bufend && isSPACE(*d)) | |
5558 | d++; | |
5559 | if (*d == '=' && d[1] == '>') | |
5560 | probable_sub = 1; | |
5561 | } | |
5562 | } | |
5563 | if (probable_sub) { | |
7a6d04f4 | 5564 | gv = gv_fetchpv(PL_tokenbuf, GV_ADD, SVt_PVCV); |
5db06880 NC |
5565 | op_free(yylval.opval); |
5566 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
5567 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; | |
5568 | PL_last_lop = PL_oldbufptr; | |
5569 | PL_last_lop_op = OP_ENTERSUB; | |
cd81e915 NC |
5570 | PL_nextwhite = PL_thiswhite; |
5571 | PL_thiswhite = 0; | |
5572 | start_force(PL_curforce); | |
5db06880 NC |
5573 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
5574 | PL_expect = XTERM; | |
cd81e915 NC |
5575 | PL_nextwhite = nextPL_nextwhite; |
5576 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5577 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5578 | force_next(WORD); |
5579 | TOKEN(NOAMP); | |
5580 | } | |
5581 | #else | |
9ded7720 | 5582 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 5583 | PL_expect = XTERM; |
8990e307 LW |
5584 | force_next(WORD); |
5585 | TOKEN(NOAMP); | |
5db06880 | 5586 | #endif |
8990e307 | 5587 | } |
748a9306 | 5588 | |
8990e307 LW |
5589 | /* Call it a bare word */ |
5590 | ||
5603f27d GS |
5591 | if (PL_hints & HINT_STRICT_SUBS) |
5592 | yylval.opval->op_private |= OPpCONST_STRICT; | |
5593 | else { | |
5594 | bareword: | |
041457d9 DM |
5595 | if (lastchar != '-') { |
5596 | if (ckWARN(WARN_RESERVED)) { | |
c35e046a AL |
5597 | d = PL_tokenbuf; |
5598 | while (isLOWER(*d)) | |
5599 | d++; | |
da51bb9b | 5600 | if (!*d && !gv_stashpv(PL_tokenbuf, 0)) |
9014280d | 5601 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
5602 | PL_tokenbuf); |
5603 | } | |
748a9306 LW |
5604 | } |
5605 | } | |
c3e0f903 GS |
5606 | |
5607 | safe_bareword: | |
3792a11b NC |
5608 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&') |
5609 | && ckWARN_d(WARN_AMBIGUOUS)) { | |
9014280d | 5610 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5611 | "Operator or semicolon missing before %c%s", |
3280af22 | 5612 | lastchar, PL_tokenbuf); |
9014280d | 5613 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5614 | "Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
5615 | lastchar, lastchar); |
5616 | } | |
93a17b20 | 5617 | TOKEN(WORD); |
79072805 | 5618 | } |
79072805 | 5619 | |
68dc0745 | 5620 | case KEY___FILE__: |
46fc3d4c | 5621 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 5622 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 5623 | TERM(THING); |
5624 | ||
79072805 | 5625 | case KEY___LINE__: |
cf2093f6 | 5626 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 5627 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 5628 | TERM(THING); |
68dc0745 | 5629 | |
5630 | case KEY___PACKAGE__: | |
5631 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, | |
3280af22 | 5632 | (PL_curstash |
5aaec2b4 | 5633 | ? newSVhek(HvNAME_HEK(PL_curstash)) |
3280af22 | 5634 | : &PL_sv_undef)); |
79072805 | 5635 | TERM(THING); |
79072805 | 5636 | |
e50aee73 | 5637 | case KEY___DATA__: |
79072805 LW |
5638 | case KEY___END__: { |
5639 | GV *gv; | |
3280af22 | 5640 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
bfed75c6 | 5641 | const char *pname = "main"; |
3280af22 | 5642 | if (PL_tokenbuf[2] == 'D') |
bfcb3514 | 5643 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
f776e3cd NC |
5644 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD, |
5645 | SVt_PVIO); | |
a5f75d66 | 5646 | GvMULTI_on(gv); |
79072805 | 5647 | if (!GvIO(gv)) |
a0d0e21e | 5648 | GvIOp(gv) = newIO(); |
3280af22 | 5649 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
5650 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
5651 | { | |
f54cb97a | 5652 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
5653 | fcntl(fd,F_SETFD,fd >= 3); |
5654 | } | |
79072805 | 5655 | #endif |
fd049845 | 5656 | /* Mark this internal pseudo-handle as clean */ |
5657 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
3280af22 | 5658 | if (PL_preprocess) |
50952442 | 5659 | IoTYPE(GvIOp(gv)) = IoTYPE_PIPE; |
3280af22 | 5660 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 5661 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 5662 | else |
50952442 | 5663 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
5664 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
5665 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 5666 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 5667 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
5668 | if (PL_bufend-PL_bufptr > 2 |
5669 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
5670 | { |
5671 | Off_t loc = 0; | |
50952442 | 5672 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
5673 | loc = PerlIO_tell(PL_rsfp); |
5674 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
5675 | } | |
2986a63f JH |
5676 | #ifdef NETWARE |
5677 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
5678 | #else | |
c39cd008 | 5679 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 5680 | #endif /* NETWARE */ |
1143fce0 JH |
5681 | #ifdef PERLIO_IS_STDIO /* really? */ |
5682 | # if defined(__BORLANDC__) | |
cb359b41 JH |
5683 | /* XXX see note in do_binmode() */ |
5684 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
5685 | # endif |
5686 | #endif | |
c39cd008 GS |
5687 | if (loc > 0) |
5688 | PerlIO_seek(PL_rsfp, loc, 0); | |
5689 | } | |
5690 | } | |
5691 | #endif | |
7948272d | 5692 | #ifdef PERLIO_LAYERS |
52d2e0f4 JH |
5693 | if (!IN_BYTES) { |
5694 | if (UTF) | |
5695 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
5696 | else if (PL_encoding) { | |
5697 | SV *name; | |
5698 | dSP; | |
5699 | ENTER; | |
5700 | SAVETMPS; | |
5701 | PUSHMARK(sp); | |
5702 | EXTEND(SP, 1); | |
5703 | XPUSHs(PL_encoding); | |
5704 | PUTBACK; | |
5705 | call_method("name", G_SCALAR); | |
5706 | SPAGAIN; | |
5707 | name = POPs; | |
5708 | PUTBACK; | |
bfed75c6 | 5709 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
52d2e0f4 | 5710 | Perl_form(aTHX_ ":encoding(%"SVf")", |
be2597df | 5711 | SVfARG(name))); |
52d2e0f4 JH |
5712 | FREETMPS; |
5713 | LEAVE; | |
5714 | } | |
5715 | } | |
7948272d | 5716 | #endif |
5db06880 NC |
5717 | #ifdef PERL_MAD |
5718 | if (PL_madskills) { | |
cd81e915 NC |
5719 | if (PL_realtokenstart >= 0) { |
5720 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; | |
5721 | if (!PL_endwhite) | |
6b29d1f5 | 5722 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
5723 | sv_catsv(PL_endwhite, PL_thiswhite); |
5724 | PL_thiswhite = 0; | |
5725 | sv_catpvn(PL_endwhite, tstart, PL_bufend - tstart); | |
5726 | PL_realtokenstart = -1; | |
5db06880 | 5727 | } |
cd81e915 NC |
5728 | while ((s = filter_gets(PL_endwhite, PL_rsfp, |
5729 | SvCUR(PL_endwhite))) != Nullch) ; | |
5db06880 NC |
5730 | } |
5731 | #endif | |
4608196e | 5732 | PL_rsfp = NULL; |
79072805 LW |
5733 | } |
5734 | goto fake_eof; | |
e929a76b | 5735 | } |
de3bb511 | 5736 | |
8990e307 | 5737 | case KEY_AUTOLOAD: |
ed6116ce | 5738 | case KEY_DESTROY: |
79072805 | 5739 | case KEY_BEGIN: |
3c10abe3 | 5740 | case KEY_UNITCHECK: |
7d30b5c4 | 5741 | case KEY_CHECK: |
7d07dbc2 | 5742 | case KEY_INIT: |
7d30b5c4 | 5743 | case KEY_END: |
3280af22 NIS |
5744 | if (PL_expect == XSTATE) { |
5745 | s = PL_bufptr; | |
93a17b20 | 5746 | goto really_sub; |
79072805 LW |
5747 | } |
5748 | goto just_a_word; | |
5749 | ||
a0d0e21e LW |
5750 | case KEY_CORE: |
5751 | if (*s == ':' && s[1] == ':') { | |
5752 | s += 2; | |
748a9306 | 5753 | d = s; |
3280af22 | 5754 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 5755 | if (!(tmp = keyword(PL_tokenbuf, len, 0))) |
6798c92b | 5756 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); |
a0d0e21e LW |
5757 | if (tmp < 0) |
5758 | tmp = -tmp; | |
850e8516 | 5759 | else if (tmp == KEY_require || tmp == KEY_do) |
a72a1c8b | 5760 | /* that's a way to remember we saw "CORE::" */ |
850e8516 | 5761 | orig_keyword = tmp; |
a0d0e21e LW |
5762 | goto reserved_word; |
5763 | } | |
5764 | goto just_a_word; | |
5765 | ||
463ee0b2 LW |
5766 | case KEY_abs: |
5767 | UNI(OP_ABS); | |
5768 | ||
79072805 LW |
5769 | case KEY_alarm: |
5770 | UNI(OP_ALARM); | |
5771 | ||
5772 | case KEY_accept: | |
a0d0e21e | 5773 | LOP(OP_ACCEPT,XTERM); |
79072805 | 5774 | |
463ee0b2 LW |
5775 | case KEY_and: |
5776 | OPERATOR(ANDOP); | |
5777 | ||
79072805 | 5778 | case KEY_atan2: |
a0d0e21e | 5779 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 5780 | |
79072805 | 5781 | case KEY_bind: |
a0d0e21e | 5782 | LOP(OP_BIND,XTERM); |
79072805 LW |
5783 | |
5784 | case KEY_binmode: | |
1c1fc3ea | 5785 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
5786 | |
5787 | case KEY_bless: | |
a0d0e21e | 5788 | LOP(OP_BLESS,XTERM); |
79072805 | 5789 | |
0d863452 RH |
5790 | case KEY_break: |
5791 | FUN0(OP_BREAK); | |
5792 | ||
79072805 LW |
5793 | case KEY_chop: |
5794 | UNI(OP_CHOP); | |
5795 | ||
5796 | case KEY_continue: | |
0d863452 RH |
5797 | /* When 'use switch' is in effect, continue has a dual |
5798 | life as a control operator. */ | |
5799 | { | |
ef89dcc3 | 5800 | if (!FEATURE_IS_ENABLED("switch")) |
0d863452 RH |
5801 | PREBLOCK(CONTINUE); |
5802 | else { | |
5803 | /* We have to disambiguate the two senses of | |
5804 | "continue". If the next token is a '{' then | |
5805 | treat it as the start of a continue block; | |
5806 | otherwise treat it as a control operator. | |
5807 | */ | |
5808 | s = skipspace(s); | |
5809 | if (*s == '{') | |
79072805 | 5810 | PREBLOCK(CONTINUE); |
0d863452 RH |
5811 | else |
5812 | FUN0(OP_CONTINUE); | |
5813 | } | |
5814 | } | |
79072805 LW |
5815 | |
5816 | case KEY_chdir: | |
fafc274c NC |
5817 | /* may use HOME */ |
5818 | (void)gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV); | |
79072805 LW |
5819 | UNI(OP_CHDIR); |
5820 | ||
5821 | case KEY_close: | |
5822 | UNI(OP_CLOSE); | |
5823 | ||
5824 | case KEY_closedir: | |
5825 | UNI(OP_CLOSEDIR); | |
5826 | ||
5827 | case KEY_cmp: | |
5828 | Eop(OP_SCMP); | |
5829 | ||
5830 | case KEY_caller: | |
5831 | UNI(OP_CALLER); | |
5832 | ||
5833 | case KEY_crypt: | |
5834 | #ifdef FCRYPT | |
f4c556ac GS |
5835 | if (!PL_cryptseen) { |
5836 | PL_cryptseen = TRUE; | |
de3bb511 | 5837 | init_des(); |
f4c556ac | 5838 | } |
a687059c | 5839 | #endif |
a0d0e21e | 5840 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
5841 | |
5842 | case KEY_chmod: | |
a0d0e21e | 5843 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
5844 | |
5845 | case KEY_chown: | |
a0d0e21e | 5846 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
5847 | |
5848 | case KEY_connect: | |
a0d0e21e | 5849 | LOP(OP_CONNECT,XTERM); |
79072805 | 5850 | |
463ee0b2 LW |
5851 | case KEY_chr: |
5852 | UNI(OP_CHR); | |
5853 | ||
79072805 LW |
5854 | case KEY_cos: |
5855 | UNI(OP_COS); | |
5856 | ||
5857 | case KEY_chroot: | |
5858 | UNI(OP_CHROOT); | |
5859 | ||
0d863452 RH |
5860 | case KEY_default: |
5861 | PREBLOCK(DEFAULT); | |
5862 | ||
79072805 | 5863 | case KEY_do: |
29595ff2 | 5864 | s = SKIPSPACE1(s); |
79072805 | 5865 | if (*s == '{') |
a0d0e21e | 5866 | PRETERMBLOCK(DO); |
79072805 | 5867 | if (*s != '\'') |
89c5585f | 5868 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
850e8516 RGS |
5869 | if (orig_keyword == KEY_do) { |
5870 | orig_keyword = 0; | |
5871 | yylval.ival = 1; | |
5872 | } | |
5873 | else | |
5874 | yylval.ival = 0; | |
378cc40b | 5875 | OPERATOR(DO); |
79072805 LW |
5876 | |
5877 | case KEY_die: | |
3280af22 | 5878 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 5879 | LOP(OP_DIE,XTERM); |
79072805 LW |
5880 | |
5881 | case KEY_defined: | |
5882 | UNI(OP_DEFINED); | |
5883 | ||
5884 | case KEY_delete: | |
a0d0e21e | 5885 | UNI(OP_DELETE); |
79072805 LW |
5886 | |
5887 | case KEY_dbmopen: | |
5c1737d1 | 5888 | gv_fetchpvs("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
a0d0e21e | 5889 | LOP(OP_DBMOPEN,XTERM); |
79072805 LW |
5890 | |
5891 | case KEY_dbmclose: | |
5892 | UNI(OP_DBMCLOSE); | |
5893 | ||
5894 | case KEY_dump: | |
a0d0e21e | 5895 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5896 | LOOPX(OP_DUMP); |
5897 | ||
5898 | case KEY_else: | |
5899 | PREBLOCK(ELSE); | |
5900 | ||
5901 | case KEY_elsif: | |
57843af0 | 5902 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5903 | OPERATOR(ELSIF); |
5904 | ||
5905 | case KEY_eq: | |
5906 | Eop(OP_SEQ); | |
5907 | ||
a0d0e21e LW |
5908 | case KEY_exists: |
5909 | UNI(OP_EXISTS); | |
4e553d73 | 5910 | |
79072805 | 5911 | case KEY_exit: |
5db06880 NC |
5912 | if (PL_madskills) |
5913 | UNI(OP_INT); | |
79072805 LW |
5914 | UNI(OP_EXIT); |
5915 | ||
5916 | case KEY_eval: | |
29595ff2 | 5917 | s = SKIPSPACE1(s); |
3280af22 | 5918 | PL_expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 5919 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
5920 | |
5921 | case KEY_eof: | |
5922 | UNI(OP_EOF); | |
5923 | ||
5924 | case KEY_exp: | |
5925 | UNI(OP_EXP); | |
5926 | ||
5927 | case KEY_each: | |
5928 | UNI(OP_EACH); | |
5929 | ||
5930 | case KEY_exec: | |
5931 | set_csh(); | |
a0d0e21e | 5932 | LOP(OP_EXEC,XREF); |
79072805 LW |
5933 | |
5934 | case KEY_endhostent: | |
5935 | FUN0(OP_EHOSTENT); | |
5936 | ||
5937 | case KEY_endnetent: | |
5938 | FUN0(OP_ENETENT); | |
5939 | ||
5940 | case KEY_endservent: | |
5941 | FUN0(OP_ESERVENT); | |
5942 | ||
5943 | case KEY_endprotoent: | |
5944 | FUN0(OP_EPROTOENT); | |
5945 | ||
5946 | case KEY_endpwent: | |
5947 | FUN0(OP_EPWENT); | |
5948 | ||
5949 | case KEY_endgrent: | |
5950 | FUN0(OP_EGRENT); | |
5951 | ||
5952 | case KEY_for: | |
5953 | case KEY_foreach: | |
57843af0 | 5954 | yylval.ival = CopLINE(PL_curcop); |
29595ff2 | 5955 | s = SKIPSPACE1(s); |
7e2040f0 | 5956 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 5957 | char *p = s; |
5db06880 NC |
5958 | #ifdef PERL_MAD |
5959 | int soff = s - SvPVX(PL_linestr); /* for skipspace realloc */ | |
5960 | #endif | |
5961 | ||
3280af22 | 5962 | if ((PL_bufend - p) >= 3 && |
55497cff | 5963 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
5964 | p += 2; | |
77ca0c92 LW |
5965 | else if ((PL_bufend - p) >= 4 && |
5966 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
5967 | p += 3; | |
29595ff2 | 5968 | p = PEEKSPACE(p); |
7e2040f0 | 5969 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
5970 | p = scan_ident(p, PL_bufend, |
5971 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
29595ff2 | 5972 | p = PEEKSPACE(p); |
77ca0c92 LW |
5973 | } |
5974 | if (*p != '$') | |
cea2e8a9 | 5975 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
5db06880 NC |
5976 | #ifdef PERL_MAD |
5977 | s = SvPVX(PL_linestr) + soff; | |
5978 | #endif | |
55497cff | 5979 | } |
79072805 LW |
5980 | OPERATOR(FOR); |
5981 | ||
5982 | case KEY_formline: | |
a0d0e21e | 5983 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
5984 | |
5985 | case KEY_fork: | |
5986 | FUN0(OP_FORK); | |
5987 | ||
5988 | case KEY_fcntl: | |
a0d0e21e | 5989 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
5990 | |
5991 | case KEY_fileno: | |
5992 | UNI(OP_FILENO); | |
5993 | ||
5994 | case KEY_flock: | |
a0d0e21e | 5995 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
5996 | |
5997 | case KEY_gt: | |
5998 | Rop(OP_SGT); | |
5999 | ||
6000 | case KEY_ge: | |
6001 | Rop(OP_SGE); | |
6002 | ||
6003 | case KEY_grep: | |
2c38e13d | 6004 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
6005 | |
6006 | case KEY_goto: | |
a0d0e21e | 6007 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6008 | LOOPX(OP_GOTO); |
6009 | ||
6010 | case KEY_gmtime: | |
6011 | UNI(OP_GMTIME); | |
6012 | ||
6013 | case KEY_getc: | |
6f33ba73 | 6014 | UNIDOR(OP_GETC); |
79072805 LW |
6015 | |
6016 | case KEY_getppid: | |
6017 | FUN0(OP_GETPPID); | |
6018 | ||
6019 | case KEY_getpgrp: | |
6020 | UNI(OP_GETPGRP); | |
6021 | ||
6022 | case KEY_getpriority: | |
a0d0e21e | 6023 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
6024 | |
6025 | case KEY_getprotobyname: | |
6026 | UNI(OP_GPBYNAME); | |
6027 | ||
6028 | case KEY_getprotobynumber: | |
a0d0e21e | 6029 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
6030 | |
6031 | case KEY_getprotoent: | |
6032 | FUN0(OP_GPROTOENT); | |
6033 | ||
6034 | case KEY_getpwent: | |
6035 | FUN0(OP_GPWENT); | |
6036 | ||
6037 | case KEY_getpwnam: | |
ff68c719 | 6038 | UNI(OP_GPWNAM); |
79072805 LW |
6039 | |
6040 | case KEY_getpwuid: | |
ff68c719 | 6041 | UNI(OP_GPWUID); |
79072805 LW |
6042 | |
6043 | case KEY_getpeername: | |
6044 | UNI(OP_GETPEERNAME); | |
6045 | ||
6046 | case KEY_gethostbyname: | |
6047 | UNI(OP_GHBYNAME); | |
6048 | ||
6049 | case KEY_gethostbyaddr: | |
a0d0e21e | 6050 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
6051 | |
6052 | case KEY_gethostent: | |
6053 | FUN0(OP_GHOSTENT); | |
6054 | ||
6055 | case KEY_getnetbyname: | |
6056 | UNI(OP_GNBYNAME); | |
6057 | ||
6058 | case KEY_getnetbyaddr: | |
a0d0e21e | 6059 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
6060 | |
6061 | case KEY_getnetent: | |
6062 | FUN0(OP_GNETENT); | |
6063 | ||
6064 | case KEY_getservbyname: | |
a0d0e21e | 6065 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
6066 | |
6067 | case KEY_getservbyport: | |
a0d0e21e | 6068 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
6069 | |
6070 | case KEY_getservent: | |
6071 | FUN0(OP_GSERVENT); | |
6072 | ||
6073 | case KEY_getsockname: | |
6074 | UNI(OP_GETSOCKNAME); | |
6075 | ||
6076 | case KEY_getsockopt: | |
a0d0e21e | 6077 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
6078 | |
6079 | case KEY_getgrent: | |
6080 | FUN0(OP_GGRENT); | |
6081 | ||
6082 | case KEY_getgrnam: | |
ff68c719 | 6083 | UNI(OP_GGRNAM); |
79072805 LW |
6084 | |
6085 | case KEY_getgrgid: | |
ff68c719 | 6086 | UNI(OP_GGRGID); |
79072805 LW |
6087 | |
6088 | case KEY_getlogin: | |
6089 | FUN0(OP_GETLOGIN); | |
6090 | ||
0d863452 RH |
6091 | case KEY_given: |
6092 | yylval.ival = CopLINE(PL_curcop); | |
6093 | OPERATOR(GIVEN); | |
6094 | ||
93a17b20 | 6095 | case KEY_glob: |
a0d0e21e LW |
6096 | set_csh(); |
6097 | LOP(OP_GLOB,XTERM); | |
93a17b20 | 6098 | |
79072805 LW |
6099 | case KEY_hex: |
6100 | UNI(OP_HEX); | |
6101 | ||
6102 | case KEY_if: | |
57843af0 | 6103 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6104 | OPERATOR(IF); |
6105 | ||
6106 | case KEY_index: | |
a0d0e21e | 6107 | LOP(OP_INDEX,XTERM); |
79072805 LW |
6108 | |
6109 | case KEY_int: | |
6110 | UNI(OP_INT); | |
6111 | ||
6112 | case KEY_ioctl: | |
a0d0e21e | 6113 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
6114 | |
6115 | case KEY_join: | |
a0d0e21e | 6116 | LOP(OP_JOIN,XTERM); |
79072805 LW |
6117 | |
6118 | case KEY_keys: | |
6119 | UNI(OP_KEYS); | |
6120 | ||
6121 | case KEY_kill: | |
a0d0e21e | 6122 | LOP(OP_KILL,XTERM); |
79072805 LW |
6123 | |
6124 | case KEY_last: | |
a0d0e21e | 6125 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 6126 | LOOPX(OP_LAST); |
4e553d73 | 6127 | |
79072805 LW |
6128 | case KEY_lc: |
6129 | UNI(OP_LC); | |
6130 | ||
6131 | case KEY_lcfirst: | |
6132 | UNI(OP_LCFIRST); | |
6133 | ||
6134 | case KEY_local: | |
09bef843 | 6135 | yylval.ival = 0; |
79072805 LW |
6136 | OPERATOR(LOCAL); |
6137 | ||
6138 | case KEY_length: | |
6139 | UNI(OP_LENGTH); | |
6140 | ||
6141 | case KEY_lt: | |
6142 | Rop(OP_SLT); | |
6143 | ||
6144 | case KEY_le: | |
6145 | Rop(OP_SLE); | |
6146 | ||
6147 | case KEY_localtime: | |
6148 | UNI(OP_LOCALTIME); | |
6149 | ||
6150 | case KEY_log: | |
6151 | UNI(OP_LOG); | |
6152 | ||
6153 | case KEY_link: | |
a0d0e21e | 6154 | LOP(OP_LINK,XTERM); |
79072805 LW |
6155 | |
6156 | case KEY_listen: | |
a0d0e21e | 6157 | LOP(OP_LISTEN,XTERM); |
79072805 | 6158 | |
c0329465 MB |
6159 | case KEY_lock: |
6160 | UNI(OP_LOCK); | |
6161 | ||
79072805 LW |
6162 | case KEY_lstat: |
6163 | UNI(OP_LSTAT); | |
6164 | ||
6165 | case KEY_m: | |
8782bef2 | 6166 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
6167 | TERM(sublex_start()); |
6168 | ||
a0d0e21e | 6169 | case KEY_map: |
2c38e13d | 6170 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 6171 | |
79072805 | 6172 | case KEY_mkdir: |
a0d0e21e | 6173 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
6174 | |
6175 | case KEY_msgctl: | |
a0d0e21e | 6176 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
6177 | |
6178 | case KEY_msgget: | |
a0d0e21e | 6179 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
6180 | |
6181 | case KEY_msgrcv: | |
a0d0e21e | 6182 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
6183 | |
6184 | case KEY_msgsnd: | |
a0d0e21e | 6185 | LOP(OP_MSGSND,XTERM); |
79072805 | 6186 | |
77ca0c92 | 6187 | case KEY_our: |
93a17b20 | 6188 | case KEY_my: |
952306ac | 6189 | case KEY_state: |
eac04b2e | 6190 | PL_in_my = (U16)tmp; |
29595ff2 | 6191 | s = SKIPSPACE1(s); |
7e2040f0 | 6192 | if (isIDFIRST_lazy_if(s,UTF)) { |
5db06880 NC |
6193 | #ifdef PERL_MAD |
6194 | char* start = s; | |
6195 | #endif | |
3280af22 | 6196 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
6197 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
6198 | goto really_sub; | |
def3634b | 6199 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 6200 | if (!PL_in_my_stash) { |
c750a3ec | 6201 | char tmpbuf[1024]; |
3280af22 | 6202 | PL_bufptr = s; |
d9fad198 | 6203 | my_snprintf(tmpbuf, sizeof(tmpbuf), "No such class %.1000s", PL_tokenbuf); |
c750a3ec MB |
6204 | yyerror(tmpbuf); |
6205 | } | |
5db06880 NC |
6206 | #ifdef PERL_MAD |
6207 | if (PL_madskills) { /* just add type to declarator token */ | |
cd81e915 NC |
6208 | sv_catsv(PL_thistoken, PL_nextwhite); |
6209 | PL_nextwhite = 0; | |
6210 | sv_catpvn(PL_thistoken, start, s - start); | |
5db06880 NC |
6211 | } |
6212 | #endif | |
c750a3ec | 6213 | } |
09bef843 | 6214 | yylval.ival = 1; |
55497cff | 6215 | OPERATOR(MY); |
93a17b20 | 6216 | |
79072805 | 6217 | case KEY_next: |
a0d0e21e | 6218 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6219 | LOOPX(OP_NEXT); |
6220 | ||
6221 | case KEY_ne: | |
6222 | Eop(OP_SNE); | |
6223 | ||
a0d0e21e | 6224 | case KEY_no: |
468aa647 | 6225 | s = tokenize_use(0, s); |
a0d0e21e LW |
6226 | OPERATOR(USE); |
6227 | ||
6228 | case KEY_not: | |
29595ff2 | 6229 | if (*s == '(' || (s = SKIPSPACE1(s), *s == '(')) |
2d2e263d LW |
6230 | FUN1(OP_NOT); |
6231 | else | |
6232 | OPERATOR(NOTOP); | |
a0d0e21e | 6233 | |
79072805 | 6234 | case KEY_open: |
29595ff2 | 6235 | s = SKIPSPACE1(s); |
7e2040f0 | 6236 | if (isIDFIRST_lazy_if(s,UTF)) { |
f54cb97a | 6237 | const char *t; |
c35e046a AL |
6238 | for (d = s; isALNUM_lazy_if(d,UTF);) |
6239 | d++; | |
6240 | for (t=d; isSPACE(*t);) | |
6241 | t++; | |
e2ab214b | 6242 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) |
66fbe8fb HS |
6243 | /* [perl #16184] */ |
6244 | && !(t[0] == '=' && t[1] == '>') | |
6245 | ) { | |
5f66b61c | 6246 | int parms_len = (int)(d-s); |
9014280d | 6247 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 6248 | "Precedence problem: open %.*s should be open(%.*s)", |
5f66b61c | 6249 | parms_len, s, parms_len, s); |
66fbe8fb | 6250 | } |
93a17b20 | 6251 | } |
a0d0e21e | 6252 | LOP(OP_OPEN,XTERM); |
79072805 | 6253 | |
463ee0b2 | 6254 | case KEY_or: |
a0d0e21e | 6255 | yylval.ival = OP_OR; |
463ee0b2 LW |
6256 | OPERATOR(OROP); |
6257 | ||
79072805 LW |
6258 | case KEY_ord: |
6259 | UNI(OP_ORD); | |
6260 | ||
6261 | case KEY_oct: | |
6262 | UNI(OP_OCT); | |
6263 | ||
6264 | case KEY_opendir: | |
a0d0e21e | 6265 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
6266 | |
6267 | case KEY_print: | |
3280af22 | 6268 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6269 | LOP(OP_PRINT,XREF); |
79072805 LW |
6270 | |
6271 | case KEY_printf: | |
3280af22 | 6272 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6273 | LOP(OP_PRTF,XREF); |
79072805 | 6274 | |
c07a80fd | 6275 | case KEY_prototype: |
6276 | UNI(OP_PROTOTYPE); | |
6277 | ||
79072805 | 6278 | case KEY_push: |
a0d0e21e | 6279 | LOP(OP_PUSH,XTERM); |
79072805 LW |
6280 | |
6281 | case KEY_pop: | |
6f33ba73 | 6282 | UNIDOR(OP_POP); |
79072805 | 6283 | |
a0d0e21e | 6284 | case KEY_pos: |
6f33ba73 | 6285 | UNIDOR(OP_POS); |
4e553d73 | 6286 | |
79072805 | 6287 | case KEY_pack: |
a0d0e21e | 6288 | LOP(OP_PACK,XTERM); |
79072805 LW |
6289 | |
6290 | case KEY_package: | |
a0d0e21e | 6291 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
6292 | OPERATOR(PACKAGE); |
6293 | ||
6294 | case KEY_pipe: | |
a0d0e21e | 6295 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
6296 | |
6297 | case KEY_q: | |
5db06880 | 6298 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6299 | if (!s) |
d4c19fe8 | 6300 | missingterm(NULL); |
79072805 LW |
6301 | yylval.ival = OP_CONST; |
6302 | TERM(sublex_start()); | |
6303 | ||
a0d0e21e LW |
6304 | case KEY_quotemeta: |
6305 | UNI(OP_QUOTEMETA); | |
6306 | ||
8990e307 | 6307 | case KEY_qw: |
5db06880 | 6308 | s = scan_str(s,!!PL_madskills,FALSE); |
8990e307 | 6309 | if (!s) |
d4c19fe8 | 6310 | missingterm(NULL); |
3480a8d2 | 6311 | PL_expect = XOPERATOR; |
8127e0e3 GS |
6312 | force_next(')'); |
6313 | if (SvCUR(PL_lex_stuff)) { | |
5f66b61c | 6314 | OP *words = NULL; |
8127e0e3 | 6315 | int warned = 0; |
3280af22 | 6316 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 6317 | while (len) { |
d4c19fe8 AL |
6318 | for (; isSPACE(*d) && len; --len, ++d) |
6319 | /**/; | |
8127e0e3 | 6320 | if (len) { |
d4c19fe8 | 6321 | SV *sv; |
f54cb97a | 6322 | const char *b = d; |
e476b1b5 | 6323 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
6324 | for (; !isSPACE(*d) && len; --len, ++d) { |
6325 | if (*d == ',') { | |
9014280d | 6326 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6327 | "Possible attempt to separate words with commas"); |
6328 | ++warned; | |
6329 | } | |
6330 | else if (*d == '#') { | |
9014280d | 6331 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6332 | "Possible attempt to put comments in qw() list"); |
6333 | ++warned; | |
6334 | } | |
6335 | } | |
6336 | } | |
6337 | else { | |
d4c19fe8 AL |
6338 | for (; !isSPACE(*d) && len; --len, ++d) |
6339 | /**/; | |
8127e0e3 | 6340 | } |
7948272d NIS |
6341 | sv = newSVpvn(b, d-b); |
6342 | if (DO_UTF8(PL_lex_stuff)) | |
6343 | SvUTF8_on(sv); | |
8127e0e3 | 6344 | words = append_elem(OP_LIST, words, |
7948272d | 6345 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 6346 | } |
6347 | } | |
8127e0e3 | 6348 | if (words) { |
cd81e915 | 6349 | start_force(PL_curforce); |
9ded7720 | 6350 | NEXTVAL_NEXTTOKE.opval = words; |
8127e0e3 GS |
6351 | force_next(THING); |
6352 | } | |
55497cff | 6353 | } |
37fd879b | 6354 | if (PL_lex_stuff) { |
8127e0e3 | 6355 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 6356 | PL_lex_stuff = NULL; |
37fd879b | 6357 | } |
3280af22 | 6358 | PL_expect = XTERM; |
8127e0e3 | 6359 | TOKEN('('); |
8990e307 | 6360 | |
79072805 | 6361 | case KEY_qq: |
5db06880 | 6362 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6363 | if (!s) |
d4c19fe8 | 6364 | missingterm(NULL); |
a0d0e21e | 6365 | yylval.ival = OP_STRINGIFY; |
3280af22 | 6366 | if (SvIVX(PL_lex_stuff) == '\'') |
45977657 | 6367 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
6368 | TERM(sublex_start()); |
6369 | ||
8782bef2 GB |
6370 | case KEY_qr: |
6371 | s = scan_pat(s,OP_QR); | |
6372 | TERM(sublex_start()); | |
6373 | ||
79072805 | 6374 | case KEY_qx: |
5db06880 | 6375 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6376 | if (!s) |
d4c19fe8 | 6377 | missingterm(NULL); |
9b201d7d | 6378 | readpipe_override(); |
79072805 LW |
6379 | TERM(sublex_start()); |
6380 | ||
6381 | case KEY_return: | |
6382 | OLDLOP(OP_RETURN); | |
6383 | ||
6384 | case KEY_require: | |
29595ff2 | 6385 | s = SKIPSPACE1(s); |
e759cc13 RGS |
6386 | if (isDIGIT(*s)) { |
6387 | s = force_version(s, FALSE); | |
a7cb1f99 | 6388 | } |
e759cc13 RGS |
6389 | else if (*s != 'v' || !isDIGIT(s[1]) |
6390 | || (s = force_version(s, TRUE), *s == 'v')) | |
6391 | { | |
a7cb1f99 GS |
6392 | *PL_tokenbuf = '\0'; |
6393 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 6394 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
da51bb9b | 6395 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), GV_ADD); |
a7cb1f99 GS |
6396 | else if (*s == '<') |
6397 | yyerror("<> should be quotes"); | |
6398 | } | |
a72a1c8b RGS |
6399 | if (orig_keyword == KEY_require) { |
6400 | orig_keyword = 0; | |
6401 | yylval.ival = 1; | |
6402 | } | |
6403 | else | |
6404 | yylval.ival = 0; | |
6405 | PL_expect = XTERM; | |
6406 | PL_bufptr = s; | |
6407 | PL_last_uni = PL_oldbufptr; | |
6408 | PL_last_lop_op = OP_REQUIRE; | |
6409 | s = skipspace(s); | |
6410 | return REPORT( (int)REQUIRE ); | |
79072805 LW |
6411 | |
6412 | case KEY_reset: | |
6413 | UNI(OP_RESET); | |
6414 | ||
6415 | case KEY_redo: | |
a0d0e21e | 6416 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6417 | LOOPX(OP_REDO); |
6418 | ||
6419 | case KEY_rename: | |
a0d0e21e | 6420 | LOP(OP_RENAME,XTERM); |
79072805 LW |
6421 | |
6422 | case KEY_rand: | |
6423 | UNI(OP_RAND); | |
6424 | ||
6425 | case KEY_rmdir: | |
6426 | UNI(OP_RMDIR); | |
6427 | ||
6428 | case KEY_rindex: | |
a0d0e21e | 6429 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
6430 | |
6431 | case KEY_read: | |
a0d0e21e | 6432 | LOP(OP_READ,XTERM); |
79072805 LW |
6433 | |
6434 | case KEY_readdir: | |
6435 | UNI(OP_READDIR); | |
6436 | ||
93a17b20 LW |
6437 | case KEY_readline: |
6438 | set_csh(); | |
6f33ba73 | 6439 | UNIDOR(OP_READLINE); |
93a17b20 LW |
6440 | |
6441 | case KEY_readpipe: | |
6442 | set_csh(); | |
0858480c | 6443 | UNIDOR(OP_BACKTICK); |
93a17b20 | 6444 | |
79072805 LW |
6445 | case KEY_rewinddir: |
6446 | UNI(OP_REWINDDIR); | |
6447 | ||
6448 | case KEY_recv: | |
a0d0e21e | 6449 | LOP(OP_RECV,XTERM); |
79072805 LW |
6450 | |
6451 | case KEY_reverse: | |
a0d0e21e | 6452 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
6453 | |
6454 | case KEY_readlink: | |
6f33ba73 | 6455 | UNIDOR(OP_READLINK); |
79072805 LW |
6456 | |
6457 | case KEY_ref: | |
6458 | UNI(OP_REF); | |
6459 | ||
6460 | case KEY_s: | |
6461 | s = scan_subst(s); | |
6462 | if (yylval.opval) | |
6463 | TERM(sublex_start()); | |
6464 | else | |
6465 | TOKEN(1); /* force error */ | |
6466 | ||
0d863452 RH |
6467 | case KEY_say: |
6468 | checkcomma(s,PL_tokenbuf,"filehandle"); | |
6469 | LOP(OP_SAY,XREF); | |
6470 | ||
a0d0e21e LW |
6471 | case KEY_chomp: |
6472 | UNI(OP_CHOMP); | |
4e553d73 | 6473 | |
79072805 LW |
6474 | case KEY_scalar: |
6475 | UNI(OP_SCALAR); | |
6476 | ||
6477 | case KEY_select: | |
a0d0e21e | 6478 | LOP(OP_SELECT,XTERM); |
79072805 LW |
6479 | |
6480 | case KEY_seek: | |
a0d0e21e | 6481 | LOP(OP_SEEK,XTERM); |
79072805 LW |
6482 | |
6483 | case KEY_semctl: | |
a0d0e21e | 6484 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
6485 | |
6486 | case KEY_semget: | |
a0d0e21e | 6487 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
6488 | |
6489 | case KEY_semop: | |
a0d0e21e | 6490 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
6491 | |
6492 | case KEY_send: | |
a0d0e21e | 6493 | LOP(OP_SEND,XTERM); |
79072805 LW |
6494 | |
6495 | case KEY_setpgrp: | |
a0d0e21e | 6496 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
6497 | |
6498 | case KEY_setpriority: | |
a0d0e21e | 6499 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
6500 | |
6501 | case KEY_sethostent: | |
ff68c719 | 6502 | UNI(OP_SHOSTENT); |
79072805 LW |
6503 | |
6504 | case KEY_setnetent: | |
ff68c719 | 6505 | UNI(OP_SNETENT); |
79072805 LW |
6506 | |
6507 | case KEY_setservent: | |
ff68c719 | 6508 | UNI(OP_SSERVENT); |
79072805 LW |
6509 | |
6510 | case KEY_setprotoent: | |
ff68c719 | 6511 | UNI(OP_SPROTOENT); |
79072805 LW |
6512 | |
6513 | case KEY_setpwent: | |
6514 | FUN0(OP_SPWENT); | |
6515 | ||
6516 | case KEY_setgrent: | |
6517 | FUN0(OP_SGRENT); | |
6518 | ||
6519 | case KEY_seekdir: | |
a0d0e21e | 6520 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
6521 | |
6522 | case KEY_setsockopt: | |
a0d0e21e | 6523 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
6524 | |
6525 | case KEY_shift: | |
6f33ba73 | 6526 | UNIDOR(OP_SHIFT); |
79072805 LW |
6527 | |
6528 | case KEY_shmctl: | |
a0d0e21e | 6529 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
6530 | |
6531 | case KEY_shmget: | |
a0d0e21e | 6532 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
6533 | |
6534 | case KEY_shmread: | |
a0d0e21e | 6535 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
6536 | |
6537 | case KEY_shmwrite: | |
a0d0e21e | 6538 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
6539 | |
6540 | case KEY_shutdown: | |
a0d0e21e | 6541 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
6542 | |
6543 | case KEY_sin: | |
6544 | UNI(OP_SIN); | |
6545 | ||
6546 | case KEY_sleep: | |
6547 | UNI(OP_SLEEP); | |
6548 | ||
6549 | case KEY_socket: | |
a0d0e21e | 6550 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
6551 | |
6552 | case KEY_socketpair: | |
a0d0e21e | 6553 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
6554 | |
6555 | case KEY_sort: | |
3280af22 | 6556 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
29595ff2 | 6557 | s = SKIPSPACE1(s); |
79072805 | 6558 | if (*s == ';' || *s == ')') /* probably a close */ |
cea2e8a9 | 6559 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 6560 | PL_expect = XTERM; |
15f0808c | 6561 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 6562 | LOP(OP_SORT,XREF); |
79072805 LW |
6563 | |
6564 | case KEY_split: | |
a0d0e21e | 6565 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
6566 | |
6567 | case KEY_sprintf: | |
a0d0e21e | 6568 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
6569 | |
6570 | case KEY_splice: | |
a0d0e21e | 6571 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
6572 | |
6573 | case KEY_sqrt: | |
6574 | UNI(OP_SQRT); | |
6575 | ||
6576 | case KEY_srand: | |
6577 | UNI(OP_SRAND); | |
6578 | ||
6579 | case KEY_stat: | |
6580 | UNI(OP_STAT); | |
6581 | ||
6582 | case KEY_study: | |
79072805 LW |
6583 | UNI(OP_STUDY); |
6584 | ||
6585 | case KEY_substr: | |
a0d0e21e | 6586 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
6587 | |
6588 | case KEY_format: | |
6589 | case KEY_sub: | |
93a17b20 | 6590 | really_sub: |
09bef843 | 6591 | { |
3280af22 | 6592 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 6593 | SSize_t tboffset = 0; |
09bef843 | 6594 | expectation attrful; |
28cc6278 | 6595 | bool have_name, have_proto; |
f54cb97a | 6596 | const int key = tmp; |
09bef843 | 6597 | |
5db06880 NC |
6598 | #ifdef PERL_MAD |
6599 | SV *tmpwhite = 0; | |
6600 | ||
cd81e915 | 6601 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
5db06880 | 6602 | SV *subtoken = newSVpvn(tstart, s - tstart); |
cd81e915 | 6603 | PL_thistoken = 0; |
5db06880 NC |
6604 | |
6605 | d = s; | |
6606 | s = SKIPSPACE2(s,tmpwhite); | |
6607 | #else | |
09bef843 | 6608 | s = skipspace(s); |
5db06880 | 6609 | #endif |
09bef843 | 6610 | |
7e2040f0 | 6611 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
6612 | (*s == ':' && s[1] == ':')) |
6613 | { | |
5db06880 NC |
6614 | #ifdef PERL_MAD |
6615 | SV *nametoke; | |
6616 | #endif | |
6617 | ||
09bef843 SB |
6618 | PL_expect = XBLOCK; |
6619 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
6620 | /* remember buffer pos'n for later force_word */ |
6621 | tboffset = s - PL_oldbufptr; | |
09bef843 | 6622 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5db06880 NC |
6623 | #ifdef PERL_MAD |
6624 | if (PL_madskills) | |
6625 | nametoke = newSVpvn(s, d - s); | |
6626 | #endif | |
6502358f NC |
6627 | if (memchr(tmpbuf, ':', len)) |
6628 | sv_setpvn(PL_subname, tmpbuf, len); | |
09bef843 SB |
6629 | else { |
6630 | sv_setsv(PL_subname,PL_curstname); | |
396482e1 | 6631 | sv_catpvs(PL_subname,"::"); |
09bef843 SB |
6632 | sv_catpvn(PL_subname,tmpbuf,len); |
6633 | } | |
09bef843 | 6634 | have_name = TRUE; |
5db06880 NC |
6635 | |
6636 | #ifdef PERL_MAD | |
6637 | ||
6638 | start_force(0); | |
6639 | CURMAD('X', nametoke); | |
6640 | CURMAD('_', tmpwhite); | |
6641 | (void) force_word(PL_oldbufptr + tboffset, WORD, | |
6642 | FALSE, TRUE, TRUE); | |
6643 | ||
6644 | s = SKIPSPACE2(d,tmpwhite); | |
6645 | #else | |
6646 | s = skipspace(d); | |
6647 | #endif | |
09bef843 | 6648 | } |
463ee0b2 | 6649 | else { |
09bef843 SB |
6650 | if (key == KEY_my) |
6651 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
6652 | PL_expect = XTERMBLOCK; | |
6653 | attrful = XATTRTERM; | |
c69006e4 | 6654 | sv_setpvn(PL_subname,"?",1); |
09bef843 | 6655 | have_name = FALSE; |
463ee0b2 | 6656 | } |
4633a7c4 | 6657 | |
09bef843 SB |
6658 | if (key == KEY_format) { |
6659 | if (*s == '=') | |
6660 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5db06880 | 6661 | #ifdef PERL_MAD |
cd81e915 | 6662 | PL_thistoken = subtoken; |
5db06880 NC |
6663 | s = d; |
6664 | #else | |
09bef843 | 6665 | if (have_name) |
b1b65b59 JH |
6666 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6667 | FALSE, TRUE, TRUE); | |
5db06880 | 6668 | #endif |
09bef843 SB |
6669 | OPERATOR(FORMAT); |
6670 | } | |
79072805 | 6671 | |
09bef843 SB |
6672 | /* Look for a prototype */ |
6673 | if (*s == '(') { | |
d9f2850e RGS |
6674 | char *p; |
6675 | bool bad_proto = FALSE; | |
6676 | const bool warnsyntax = ckWARN(WARN_SYNTAX); | |
09bef843 | 6677 | |
5db06880 | 6678 | s = scan_str(s,!!PL_madskills,FALSE); |
37fd879b | 6679 | if (!s) |
09bef843 | 6680 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 6681 | /* strip spaces and check for bad characters */ |
09bef843 SB |
6682 | d = SvPVX(PL_lex_stuff); |
6683 | tmp = 0; | |
d9f2850e RGS |
6684 | for (p = d; *p; ++p) { |
6685 | if (!isSPACE(*p)) { | |
6686 | d[tmp++] = *p; | |
b13fd70a | 6687 | if (warnsyntax && !strchr("$@%*;[]&\\_", *p)) |
d9f2850e | 6688 | bad_proto = TRUE; |
d37a9538 | 6689 | } |
09bef843 | 6690 | } |
d9f2850e RGS |
6691 | d[tmp] = '\0'; |
6692 | if (bad_proto) | |
6693 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
6694 | "Illegal character in prototype for %"SVf" : %s", | |
be2597df | 6695 | SVfARG(PL_subname), d); |
b162af07 | 6696 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 6697 | have_proto = TRUE; |
68dc0745 | 6698 | |
5db06880 NC |
6699 | #ifdef PERL_MAD |
6700 | start_force(0); | |
cd81e915 | 6701 | CURMAD('q', PL_thisopen); |
5db06880 | 6702 | CURMAD('_', tmpwhite); |
cd81e915 NC |
6703 | CURMAD('=', PL_thisstuff); |
6704 | CURMAD('Q', PL_thisclose); | |
5db06880 NC |
6705 | NEXTVAL_NEXTTOKE.opval = |
6706 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
6707 | PL_lex_stuff = Nullsv; | |
6708 | force_next(THING); | |
6709 | ||
6710 | s = SKIPSPACE2(s,tmpwhite); | |
6711 | #else | |
09bef843 | 6712 | s = skipspace(s); |
5db06880 | 6713 | #endif |
4633a7c4 | 6714 | } |
09bef843 SB |
6715 | else |
6716 | have_proto = FALSE; | |
6717 | ||
6718 | if (*s == ':' && s[1] != ':') | |
6719 | PL_expect = attrful; | |
8e742a20 MHM |
6720 | else if (*s != '{' && key == KEY_sub) { |
6721 | if (!have_name) | |
6722 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
6723 | else if (*s != ';') | |
be2597df | 6724 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, SVfARG(PL_subname)); |
8e742a20 | 6725 | } |
09bef843 | 6726 | |
5db06880 NC |
6727 | #ifdef PERL_MAD |
6728 | start_force(0); | |
6729 | if (tmpwhite) { | |
6730 | if (PL_madskills) | |
6b29d1f5 | 6731 | curmad('^', newSVpvs("")); |
5db06880 NC |
6732 | CURMAD('_', tmpwhite); |
6733 | } | |
6734 | force_next(0); | |
6735 | ||
cd81e915 | 6736 | PL_thistoken = subtoken; |
5db06880 | 6737 | #else |
09bef843 | 6738 | if (have_proto) { |
9ded7720 | 6739 | NEXTVAL_NEXTTOKE.opval = |
b1b65b59 | 6740 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); |
a0714e2c | 6741 | PL_lex_stuff = NULL; |
09bef843 | 6742 | force_next(THING); |
68dc0745 | 6743 | } |
5db06880 | 6744 | #endif |
09bef843 | 6745 | if (!have_name) { |
c99da370 | 6746 | sv_setpv(PL_subname, |
10edeb5d JH |
6747 | (const char *) |
6748 | (PL_curstash ? "__ANON__" : "__ANON__::__ANON__")); | |
09bef843 | 6749 | TOKEN(ANONSUB); |
4633a7c4 | 6750 | } |
5db06880 | 6751 | #ifndef PERL_MAD |
b1b65b59 JH |
6752 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6753 | FALSE, TRUE, TRUE); | |
5db06880 | 6754 | #endif |
09bef843 SB |
6755 | if (key == KEY_my) |
6756 | TOKEN(MYSUB); | |
6757 | TOKEN(SUB); | |
4633a7c4 | 6758 | } |
79072805 LW |
6759 | |
6760 | case KEY_system: | |
6761 | set_csh(); | |
a0d0e21e | 6762 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
6763 | |
6764 | case KEY_symlink: | |
a0d0e21e | 6765 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
6766 | |
6767 | case KEY_syscall: | |
a0d0e21e | 6768 | LOP(OP_SYSCALL,XTERM); |
79072805 | 6769 | |
c07a80fd | 6770 | case KEY_sysopen: |
6771 | LOP(OP_SYSOPEN,XTERM); | |
6772 | ||
137443ea | 6773 | case KEY_sysseek: |
6774 | LOP(OP_SYSSEEK,XTERM); | |
6775 | ||
79072805 | 6776 | case KEY_sysread: |
a0d0e21e | 6777 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
6778 | |
6779 | case KEY_syswrite: | |
a0d0e21e | 6780 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
6781 | |
6782 | case KEY_tr: | |
6783 | s = scan_trans(s); | |
6784 | TERM(sublex_start()); | |
6785 | ||
6786 | case KEY_tell: | |
6787 | UNI(OP_TELL); | |
6788 | ||
6789 | case KEY_telldir: | |
6790 | UNI(OP_TELLDIR); | |
6791 | ||
463ee0b2 | 6792 | case KEY_tie: |
a0d0e21e | 6793 | LOP(OP_TIE,XTERM); |
463ee0b2 | 6794 | |
c07a80fd | 6795 | case KEY_tied: |
6796 | UNI(OP_TIED); | |
6797 | ||
79072805 LW |
6798 | case KEY_time: |
6799 | FUN0(OP_TIME); | |
6800 | ||
6801 | case KEY_times: | |
6802 | FUN0(OP_TMS); | |
6803 | ||
6804 | case KEY_truncate: | |
a0d0e21e | 6805 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
6806 | |
6807 | case KEY_uc: | |
6808 | UNI(OP_UC); | |
6809 | ||
6810 | case KEY_ucfirst: | |
6811 | UNI(OP_UCFIRST); | |
6812 | ||
463ee0b2 LW |
6813 | case KEY_untie: |
6814 | UNI(OP_UNTIE); | |
6815 | ||
79072805 | 6816 | case KEY_until: |
57843af0 | 6817 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6818 | OPERATOR(UNTIL); |
6819 | ||
6820 | case KEY_unless: | |
57843af0 | 6821 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6822 | OPERATOR(UNLESS); |
6823 | ||
6824 | case KEY_unlink: | |
a0d0e21e | 6825 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
6826 | |
6827 | case KEY_undef: | |
6f33ba73 | 6828 | UNIDOR(OP_UNDEF); |
79072805 LW |
6829 | |
6830 | case KEY_unpack: | |
a0d0e21e | 6831 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
6832 | |
6833 | case KEY_utime: | |
a0d0e21e | 6834 | LOP(OP_UTIME,XTERM); |
79072805 LW |
6835 | |
6836 | case KEY_umask: | |
6f33ba73 | 6837 | UNIDOR(OP_UMASK); |
79072805 LW |
6838 | |
6839 | case KEY_unshift: | |
a0d0e21e LW |
6840 | LOP(OP_UNSHIFT,XTERM); |
6841 | ||
6842 | case KEY_use: | |
468aa647 | 6843 | s = tokenize_use(1, s); |
a0d0e21e | 6844 | OPERATOR(USE); |
79072805 LW |
6845 | |
6846 | case KEY_values: | |
6847 | UNI(OP_VALUES); | |
6848 | ||
6849 | case KEY_vec: | |
a0d0e21e | 6850 | LOP(OP_VEC,XTERM); |
79072805 | 6851 | |
0d863452 RH |
6852 | case KEY_when: |
6853 | yylval.ival = CopLINE(PL_curcop); | |
6854 | OPERATOR(WHEN); | |
6855 | ||
79072805 | 6856 | case KEY_while: |
57843af0 | 6857 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6858 | OPERATOR(WHILE); |
6859 | ||
6860 | case KEY_warn: | |
3280af22 | 6861 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 6862 | LOP(OP_WARN,XTERM); |
79072805 LW |
6863 | |
6864 | case KEY_wait: | |
6865 | FUN0(OP_WAIT); | |
6866 | ||
6867 | case KEY_waitpid: | |
a0d0e21e | 6868 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
6869 | |
6870 | case KEY_wantarray: | |
6871 | FUN0(OP_WANTARRAY); | |
6872 | ||
6873 | case KEY_write: | |
9d116dd7 JH |
6874 | #ifdef EBCDIC |
6875 | { | |
df3728a2 JH |
6876 | char ctl_l[2]; |
6877 | ctl_l[0] = toCTRL('L'); | |
6878 | ctl_l[1] = '\0'; | |
fafc274c | 6879 | gv_fetchpvn_flags(ctl_l, 1, GV_ADD|GV_NOTQUAL, SVt_PV); |
9d116dd7 JH |
6880 | } |
6881 | #else | |
fafc274c NC |
6882 | /* Make sure $^L is defined */ |
6883 | gv_fetchpvs("\f", GV_ADD|GV_NOTQUAL, SVt_PV); | |
9d116dd7 | 6884 | #endif |
79072805 LW |
6885 | UNI(OP_ENTERWRITE); |
6886 | ||
6887 | case KEY_x: | |
3280af22 | 6888 | if (PL_expect == XOPERATOR) |
79072805 LW |
6889 | Mop(OP_REPEAT); |
6890 | check_uni(); | |
6891 | goto just_a_word; | |
6892 | ||
a0d0e21e LW |
6893 | case KEY_xor: |
6894 | yylval.ival = OP_XOR; | |
6895 | OPERATOR(OROP); | |
6896 | ||
79072805 LW |
6897 | case KEY_y: |
6898 | s = scan_trans(s); | |
6899 | TERM(sublex_start()); | |
6900 | } | |
49dc05e3 | 6901 | }} |
79072805 | 6902 | } |
bf4acbe4 GS |
6903 | #ifdef __SC__ |
6904 | #pragma segment Main | |
6905 | #endif | |
79072805 | 6906 | |
e930465f JH |
6907 | static int |
6908 | S_pending_ident(pTHX) | |
8eceec63 | 6909 | { |
97aff369 | 6910 | dVAR; |
8eceec63 | 6911 | register char *d; |
bbd11bfc | 6912 | PADOFFSET tmp = 0; |
8eceec63 SC |
6913 | /* pit holds the identifier we read and pending_ident is reset */ |
6914 | char pit = PL_pending_ident; | |
6915 | PL_pending_ident = 0; | |
6916 | ||
cd81e915 | 6917 | /* PL_realtokenstart = realtokenend = PL_bufptr - SvPVX(PL_linestr); */ |
8eceec63 | 6918 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 6919 | "### Pending identifier '%s'\n", PL_tokenbuf); }); |
8eceec63 SC |
6920 | |
6921 | /* if we're in a my(), we can't allow dynamics here. | |
6922 | $foo'bar has already been turned into $foo::bar, so | |
6923 | just check for colons. | |
6924 | ||
6925 | if it's a legal name, the OP is a PADANY. | |
6926 | */ | |
6927 | if (PL_in_my) { | |
6928 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
6929 | if (strchr(PL_tokenbuf,':')) | |
6930 | yyerror(Perl_form(aTHX_ "No package name allowed for " | |
6931 | "variable %s in \"our\"", | |
6932 | PL_tokenbuf)); | |
dd2155a4 | 6933 | tmp = allocmy(PL_tokenbuf); |
8eceec63 SC |
6934 | } |
6935 | else { | |
6936 | if (strchr(PL_tokenbuf,':')) | |
952306ac RGS |
6937 | yyerror(Perl_form(aTHX_ PL_no_myglob, |
6938 | PL_in_my == KEY_my ? "my" : "state", PL_tokenbuf)); | |
8eceec63 SC |
6939 | |
6940 | yylval.opval = newOP(OP_PADANY, 0); | |
dd2155a4 | 6941 | yylval.opval->op_targ = allocmy(PL_tokenbuf); |
8eceec63 SC |
6942 | return PRIVATEREF; |
6943 | } | |
6944 | } | |
6945 | ||
6946 | /* | |
6947 | build the ops for accesses to a my() variable. | |
6948 | ||
6949 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
6950 | then used in a comparison. This catches most, but not | |
6951 | all cases. For instance, it catches | |
6952 | sort { my($a); $a <=> $b } | |
6953 | but not | |
6954 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
6955 | (although why you'd do that is anyone's guess). | |
6956 | */ | |
6957 | ||
6958 | if (!strchr(PL_tokenbuf,':')) { | |
8716503d DM |
6959 | if (!PL_in_my) |
6960 | tmp = pad_findmy(PL_tokenbuf); | |
6961 | if (tmp != NOT_IN_PAD) { | |
8eceec63 | 6962 | /* might be an "our" variable" */ |
00b1698f | 6963 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
8eceec63 | 6964 | /* build ops for a bareword */ |
b64e5050 AL |
6965 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
6966 | HEK * const stashname = HvNAME_HEK(stash); | |
6967 | SV * const sym = newSVhek(stashname); | |
396482e1 | 6968 | sv_catpvs(sym, "::"); |
8eceec63 SC |
6969 | sv_catpv(sym, PL_tokenbuf+1); |
6970 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); | |
6971 | yylval.opval->op_private = OPpCONST_ENTERED; | |
7a5fd60d | 6972 | gv_fetchsv(sym, |
8eceec63 SC |
6973 | (PL_in_eval |
6974 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 6975 | : GV_ADDMULTI |
8eceec63 SC |
6976 | ), |
6977 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
6978 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
6979 | : SVt_PVHV)); | |
6980 | return WORD; | |
6981 | } | |
6982 | ||
6983 | /* if it's a sort block and they're naming $a or $b */ | |
6984 | if (PL_last_lop_op == OP_SORT && | |
6985 | PL_tokenbuf[0] == '$' && | |
6986 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
6987 | && !PL_tokenbuf[2]) | |
6988 | { | |
6989 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
6990 | d < PL_bufend && *d != '\n'; | |
6991 | d++) | |
6992 | { | |
6993 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
6994 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
6995 | PL_tokenbuf); | |
6996 | } | |
6997 | } | |
6998 | } | |
6999 | ||
7000 | yylval.opval = newOP(OP_PADANY, 0); | |
7001 | yylval.opval->op_targ = tmp; | |
7002 | return PRIVATEREF; | |
7003 | } | |
7004 | } | |
7005 | ||
7006 | /* | |
7007 | Whine if they've said @foo in a doublequoted string, | |
7008 | and @foo isn't a variable we can find in the symbol | |
7009 | table. | |
7010 | */ | |
7011 | if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
f776e3cd | 7012 | GV *gv = gv_fetchpv(PL_tokenbuf+1, 0, SVt_PVAV); |
8eceec63 | 7013 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
e879d94f RGS |
7014 | && ckWARN(WARN_AMBIGUOUS) |
7015 | /* DO NOT warn for @- and @+ */ | |
7016 | && !( PL_tokenbuf[2] == '\0' && | |
7017 | ( PL_tokenbuf[1] == '-' || PL_tokenbuf[1] == '+' )) | |
7018 | ) | |
8eceec63 SC |
7019 | { |
7020 | /* Downgraded from fatal to warning 20000522 mjd */ | |
9014280d | 7021 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
8eceec63 SC |
7022 | "Possible unintended interpolation of %s in string", |
7023 | PL_tokenbuf); | |
7024 | } | |
7025 | } | |
7026 | ||
7027 | /* build ops for a bareword */ | |
7028 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf+1, 0)); | |
7029 | yylval.opval->op_private = OPpCONST_ENTERED; | |
adc51b97 RGS |
7030 | gv_fetchpv( |
7031 | PL_tokenbuf+1, | |
d6069db2 RGS |
7032 | /* If the identifier refers to a stash, don't autovivify it. |
7033 | * Change 24660 had the side effect of causing symbol table | |
7034 | * hashes to always be defined, even if they were freshly | |
7035 | * created and the only reference in the entire program was | |
7036 | * the single statement with the defined %foo::bar:: test. | |
7037 | * It appears that all code in the wild doing this actually | |
7038 | * wants to know whether sub-packages have been loaded, so | |
7039 | * by avoiding auto-vivifying symbol tables, we ensure that | |
7040 | * defined %foo::bar:: continues to be false, and the existing | |
7041 | * tests still give the expected answers, even though what | |
7042 | * they're actually testing has now changed subtly. | |
7043 | */ | |
7044 | (*PL_tokenbuf == '%' && *(d = PL_tokenbuf + strlen(PL_tokenbuf) - 1) == ':' && d[-1] == ':' | |
7045 | ? 0 | |
7046 | : PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD), | |
adc51b97 RGS |
7047 | ((PL_tokenbuf[0] == '$') ? SVt_PV |
7048 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
7049 | : SVt_PVHV)); | |
8eceec63 SC |
7050 | return WORD; |
7051 | } | |
7052 | ||
4c3bbe0f MHM |
7053 | /* |
7054 | * The following code was generated by perl_keyword.pl. | |
7055 | */ | |
e2e1dd5a | 7056 | |
79072805 | 7057 | I32 |
5458a98a | 7058 | Perl_keyword (pTHX_ const char *name, I32 len, bool all_keywords) |
4c3bbe0f | 7059 | { |
952306ac | 7060 | dVAR; |
4c3bbe0f MHM |
7061 | switch (len) |
7062 | { | |
7063 | case 1: /* 5 tokens of length 1 */ | |
7064 | switch (name[0]) | |
e2e1dd5a | 7065 | { |
4c3bbe0f MHM |
7066 | case 'm': |
7067 | { /* m */ | |
7068 | return KEY_m; | |
7069 | } | |
7070 | ||
4c3bbe0f MHM |
7071 | case 'q': |
7072 | { /* q */ | |
7073 | return KEY_q; | |
7074 | } | |
7075 | ||
4c3bbe0f MHM |
7076 | case 's': |
7077 | { /* s */ | |
7078 | return KEY_s; | |
7079 | } | |
7080 | ||
4c3bbe0f MHM |
7081 | case 'x': |
7082 | { /* x */ | |
7083 | return -KEY_x; | |
7084 | } | |
7085 | ||
4c3bbe0f MHM |
7086 | case 'y': |
7087 | { /* y */ | |
7088 | return KEY_y; | |
7089 | } | |
7090 | ||
4c3bbe0f MHM |
7091 | default: |
7092 | goto unknown; | |
e2e1dd5a | 7093 | } |
4c3bbe0f MHM |
7094 | |
7095 | case 2: /* 18 tokens of length 2 */ | |
7096 | switch (name[0]) | |
e2e1dd5a | 7097 | { |
4c3bbe0f MHM |
7098 | case 'd': |
7099 | if (name[1] == 'o') | |
7100 | { /* do */ | |
7101 | return KEY_do; | |
7102 | } | |
7103 | ||
7104 | goto unknown; | |
7105 | ||
7106 | case 'e': | |
7107 | if (name[1] == 'q') | |
7108 | { /* eq */ | |
7109 | return -KEY_eq; | |
7110 | } | |
7111 | ||
7112 | goto unknown; | |
7113 | ||
7114 | case 'g': | |
7115 | switch (name[1]) | |
7116 | { | |
7117 | case 'e': | |
7118 | { /* ge */ | |
7119 | return -KEY_ge; | |
7120 | } | |
7121 | ||
4c3bbe0f MHM |
7122 | case 't': |
7123 | { /* gt */ | |
7124 | return -KEY_gt; | |
7125 | } | |
7126 | ||
4c3bbe0f MHM |
7127 | default: |
7128 | goto unknown; | |
7129 | } | |
7130 | ||
7131 | case 'i': | |
7132 | if (name[1] == 'f') | |
7133 | { /* if */ | |
7134 | return KEY_if; | |
7135 | } | |
7136 | ||
7137 | goto unknown; | |
7138 | ||
7139 | case 'l': | |
7140 | switch (name[1]) | |
7141 | { | |
7142 | case 'c': | |
7143 | { /* lc */ | |
7144 | return -KEY_lc; | |
7145 | } | |
7146 | ||
4c3bbe0f MHM |
7147 | case 'e': |
7148 | { /* le */ | |
7149 | return -KEY_le; | |
7150 | } | |
7151 | ||
4c3bbe0f MHM |
7152 | case 't': |
7153 | { /* lt */ | |
7154 | return -KEY_lt; | |
7155 | } | |
7156 | ||
4c3bbe0f MHM |
7157 | default: |
7158 | goto unknown; | |
7159 | } | |
7160 | ||
7161 | case 'm': | |
7162 | if (name[1] == 'y') | |
7163 | { /* my */ | |
7164 | return KEY_my; | |
7165 | } | |
7166 | ||
7167 | goto unknown; | |
7168 | ||
7169 | case 'n': | |
7170 | switch (name[1]) | |
7171 | { | |
7172 | case 'e': | |
7173 | { /* ne */ | |
7174 | return -KEY_ne; | |
7175 | } | |
7176 | ||
4c3bbe0f MHM |
7177 | case 'o': |
7178 | { /* no */ | |
7179 | return KEY_no; | |
7180 | } | |
7181 | ||
4c3bbe0f MHM |
7182 | default: |
7183 | goto unknown; | |
7184 | } | |
7185 | ||
7186 | case 'o': | |
7187 | if (name[1] == 'r') | |
7188 | { /* or */ | |
7189 | return -KEY_or; | |
7190 | } | |
7191 | ||
7192 | goto unknown; | |
7193 | ||
7194 | case 'q': | |
7195 | switch (name[1]) | |
7196 | { | |
7197 | case 'q': | |
7198 | { /* qq */ | |
7199 | return KEY_qq; | |
7200 | } | |
7201 | ||
4c3bbe0f MHM |
7202 | case 'r': |
7203 | { /* qr */ | |
7204 | return KEY_qr; | |
7205 | } | |
7206 | ||
4c3bbe0f MHM |
7207 | case 'w': |
7208 | { /* qw */ | |
7209 | return KEY_qw; | |
7210 | } | |
7211 | ||
4c3bbe0f MHM |
7212 | case 'x': |
7213 | { /* qx */ | |
7214 | return KEY_qx; | |
7215 | } | |
7216 | ||
4c3bbe0f MHM |
7217 | default: |
7218 | goto unknown; | |
7219 | } | |
7220 | ||
7221 | case 't': | |
7222 | if (name[1] == 'r') | |
7223 | { /* tr */ | |
7224 | return KEY_tr; | |
7225 | } | |
7226 | ||
7227 | goto unknown; | |
7228 | ||
7229 | case 'u': | |
7230 | if (name[1] == 'c') | |
7231 | { /* uc */ | |
7232 | return -KEY_uc; | |
7233 | } | |
7234 | ||
7235 | goto unknown; | |
7236 | ||
7237 | default: | |
7238 | goto unknown; | |
e2e1dd5a | 7239 | } |
4c3bbe0f | 7240 | |
0d863452 | 7241 | case 3: /* 29 tokens of length 3 */ |
4c3bbe0f | 7242 | switch (name[0]) |
e2e1dd5a | 7243 | { |
4c3bbe0f MHM |
7244 | case 'E': |
7245 | if (name[1] == 'N' && | |
7246 | name[2] == 'D') | |
7247 | { /* END */ | |
7248 | return KEY_END; | |
7249 | } | |
7250 | ||
7251 | goto unknown; | |
7252 | ||
7253 | case 'a': | |
7254 | switch (name[1]) | |
7255 | { | |
7256 | case 'b': | |
7257 | if (name[2] == 's') | |
7258 | { /* abs */ | |
7259 | return -KEY_abs; | |
7260 | } | |
7261 | ||
7262 | goto unknown; | |
7263 | ||
7264 | case 'n': | |
7265 | if (name[2] == 'd') | |
7266 | { /* and */ | |
7267 | return -KEY_and; | |
7268 | } | |
7269 | ||
7270 | goto unknown; | |
7271 | ||
7272 | default: | |
7273 | goto unknown; | |
7274 | } | |
7275 | ||
7276 | case 'c': | |
7277 | switch (name[1]) | |
7278 | { | |
7279 | case 'h': | |
7280 | if (name[2] == 'r') | |
7281 | { /* chr */ | |
7282 | return -KEY_chr; | |
7283 | } | |
7284 | ||
7285 | goto unknown; | |
7286 | ||
7287 | case 'm': | |
7288 | if (name[2] == 'p') | |
7289 | { /* cmp */ | |
7290 | return -KEY_cmp; | |
7291 | } | |
7292 | ||
7293 | goto unknown; | |
7294 | ||
7295 | case 'o': | |
7296 | if (name[2] == 's') | |
7297 | { /* cos */ | |
7298 | return -KEY_cos; | |
7299 | } | |
7300 | ||
7301 | goto unknown; | |
7302 | ||
7303 | default: | |
7304 | goto unknown; | |
7305 | } | |
7306 | ||
7307 | case 'd': | |
7308 | if (name[1] == 'i' && | |
7309 | name[2] == 'e') | |
7310 | { /* die */ | |
7311 | return -KEY_die; | |
7312 | } | |
7313 | ||
7314 | goto unknown; | |
7315 | ||
7316 | case 'e': | |
7317 | switch (name[1]) | |
7318 | { | |
7319 | case 'o': | |
7320 | if (name[2] == 'f') | |
7321 | { /* eof */ | |
7322 | return -KEY_eof; | |
7323 | } | |
7324 | ||
7325 | goto unknown; | |
7326 | ||
4c3bbe0f MHM |
7327 | case 'x': |
7328 | if (name[2] == 'p') | |
7329 | { /* exp */ | |
7330 | return -KEY_exp; | |
7331 | } | |
7332 | ||
7333 | goto unknown; | |
7334 | ||
7335 | default: | |
7336 | goto unknown; | |
7337 | } | |
7338 | ||
7339 | case 'f': | |
7340 | if (name[1] == 'o' && | |
7341 | name[2] == 'r') | |
7342 | { /* for */ | |
7343 | return KEY_for; | |
7344 | } | |
7345 | ||
7346 | goto unknown; | |
7347 | ||
7348 | case 'h': | |
7349 | if (name[1] == 'e' && | |
7350 | name[2] == 'x') | |
7351 | { /* hex */ | |
7352 | return -KEY_hex; | |
7353 | } | |
7354 | ||
7355 | goto unknown; | |
7356 | ||
7357 | case 'i': | |
7358 | if (name[1] == 'n' && | |
7359 | name[2] == 't') | |
7360 | { /* int */ | |
7361 | return -KEY_int; | |
7362 | } | |
7363 | ||
7364 | goto unknown; | |
7365 | ||
7366 | case 'l': | |
7367 | if (name[1] == 'o' && | |
7368 | name[2] == 'g') | |
7369 | { /* log */ | |
7370 | return -KEY_log; | |
7371 | } | |
7372 | ||
7373 | goto unknown; | |
7374 | ||
7375 | case 'm': | |
7376 | if (name[1] == 'a' && | |
7377 | name[2] == 'p') | |
7378 | { /* map */ | |
7379 | return KEY_map; | |
7380 | } | |
7381 | ||
7382 | goto unknown; | |
7383 | ||
7384 | case 'n': | |
7385 | if (name[1] == 'o' && | |
7386 | name[2] == 't') | |
7387 | { /* not */ | |
7388 | return -KEY_not; | |
7389 | } | |
7390 | ||
7391 | goto unknown; | |
7392 | ||
7393 | case 'o': | |
7394 | switch (name[1]) | |
7395 | { | |
7396 | case 'c': | |
7397 | if (name[2] == 't') | |
7398 | { /* oct */ | |
7399 | return -KEY_oct; | |
7400 | } | |
7401 | ||
7402 | goto unknown; | |
7403 | ||
7404 | case 'r': | |
7405 | if (name[2] == 'd') | |
7406 | { /* ord */ | |
7407 | return -KEY_ord; | |
7408 | } | |
7409 | ||
7410 | goto unknown; | |
7411 | ||
7412 | case 'u': | |
7413 | if (name[2] == 'r') | |
7414 | { /* our */ | |
7415 | return KEY_our; | |
7416 | } | |
7417 | ||
7418 | goto unknown; | |
7419 | ||
7420 | default: | |
7421 | goto unknown; | |
7422 | } | |
7423 | ||
7424 | case 'p': | |
7425 | if (name[1] == 'o') | |
7426 | { | |
7427 | switch (name[2]) | |
7428 | { | |
7429 | case 'p': | |
7430 | { /* pop */ | |
7431 | return -KEY_pop; | |
7432 | } | |
7433 | ||
4c3bbe0f MHM |
7434 | case 's': |
7435 | { /* pos */ | |
7436 | return KEY_pos; | |
7437 | } | |
7438 | ||
4c3bbe0f MHM |
7439 | default: |
7440 | goto unknown; | |
7441 | } | |
7442 | } | |
7443 | ||
7444 | goto unknown; | |
7445 | ||
7446 | case 'r': | |
7447 | if (name[1] == 'e' && | |
7448 | name[2] == 'f') | |
7449 | { /* ref */ | |
7450 | return -KEY_ref; | |
7451 | } | |
7452 | ||
7453 | goto unknown; | |
7454 | ||
7455 | case 's': | |
7456 | switch (name[1]) | |
7457 | { | |
0d863452 RH |
7458 | case 'a': |
7459 | if (name[2] == 'y') | |
7460 | { /* say */ | |
e3e804c9 | 7461 | return (all_keywords || FEATURE_IS_ENABLED("say") ? KEY_say : 0); |
0d863452 RH |
7462 | } |
7463 | ||
7464 | goto unknown; | |
7465 | ||
4c3bbe0f MHM |
7466 | case 'i': |
7467 | if (name[2] == 'n') | |
7468 | { /* sin */ | |
7469 | return -KEY_sin; | |
7470 | } | |
7471 | ||
7472 | goto unknown; | |
7473 | ||
7474 | case 'u': | |
7475 | if (name[2] == 'b') | |
7476 | { /* sub */ | |
7477 | return KEY_sub; | |
7478 | } | |
7479 | ||
7480 | goto unknown; | |
7481 | ||
7482 | default: | |
7483 | goto unknown; | |
7484 | } | |
7485 | ||
7486 | case 't': | |
7487 | if (name[1] == 'i' && | |
7488 | name[2] == 'e') | |
7489 | { /* tie */ | |
7490 | return KEY_tie; | |
7491 | } | |
7492 | ||
7493 | goto unknown; | |
7494 | ||
7495 | case 'u': | |
7496 | if (name[1] == 's' && | |
7497 | name[2] == 'e') | |
7498 | { /* use */ | |
7499 | return KEY_use; | |
7500 | } | |
7501 | ||
7502 | goto unknown; | |
7503 | ||
7504 | case 'v': | |
7505 | if (name[1] == 'e' && | |
7506 | name[2] == 'c') | |
7507 | { /* vec */ | |
7508 | return -KEY_vec; | |
7509 | } | |
7510 | ||
7511 | goto unknown; | |
7512 | ||
7513 | case 'x': | |
7514 | if (name[1] == 'o' && | |
7515 | name[2] == 'r') | |
7516 | { /* xor */ | |
7517 | return -KEY_xor; | |
7518 | } | |
7519 | ||
7520 | goto unknown; | |
7521 | ||
7522 | default: | |
7523 | goto unknown; | |
e2e1dd5a | 7524 | } |
4c3bbe0f | 7525 | |
0d863452 | 7526 | case 4: /* 41 tokens of length 4 */ |
4c3bbe0f | 7527 | switch (name[0]) |
e2e1dd5a | 7528 | { |
4c3bbe0f MHM |
7529 | case 'C': |
7530 | if (name[1] == 'O' && | |
7531 | name[2] == 'R' && | |
7532 | name[3] == 'E') | |
7533 | { /* CORE */ | |
7534 | return -KEY_CORE; | |
7535 | } | |
7536 | ||
7537 | goto unknown; | |
7538 | ||
7539 | case 'I': | |
7540 | if (name[1] == 'N' && | |
7541 | name[2] == 'I' && | |
7542 | name[3] == 'T') | |
7543 | { /* INIT */ | |
7544 | return KEY_INIT; | |
7545 | } | |
7546 | ||
7547 | goto unknown; | |
7548 | ||
7549 | case 'b': | |
7550 | if (name[1] == 'i' && | |
7551 | name[2] == 'n' && | |
7552 | name[3] == 'd') | |
7553 | { /* bind */ | |
7554 | return -KEY_bind; | |
7555 | } | |
7556 | ||
7557 | goto unknown; | |
7558 | ||
7559 | case 'c': | |
7560 | if (name[1] == 'h' && | |
7561 | name[2] == 'o' && | |
7562 | name[3] == 'p') | |
7563 | { /* chop */ | |
7564 | return -KEY_chop; | |
7565 | } | |
7566 | ||
7567 | goto unknown; | |
7568 | ||
7569 | case 'd': | |
7570 | if (name[1] == 'u' && | |
7571 | name[2] == 'm' && | |
7572 | name[3] == 'p') | |
7573 | { /* dump */ | |
7574 | return -KEY_dump; | |
7575 | } | |
7576 | ||
7577 | goto unknown; | |
7578 | ||
7579 | case 'e': | |
7580 | switch (name[1]) | |
7581 | { | |
7582 | case 'a': | |
7583 | if (name[2] == 'c' && | |
7584 | name[3] == 'h') | |
7585 | { /* each */ | |
7586 | return -KEY_each; | |
7587 | } | |
7588 | ||
7589 | goto unknown; | |
7590 | ||
7591 | case 'l': | |
7592 | if (name[2] == 's' && | |
7593 | name[3] == 'e') | |
7594 | { /* else */ | |
7595 | return KEY_else; | |
7596 | } | |
7597 | ||
7598 | goto unknown; | |
7599 | ||
7600 | case 'v': | |
7601 | if (name[2] == 'a' && | |
7602 | name[3] == 'l') | |
7603 | { /* eval */ | |
7604 | return KEY_eval; | |
7605 | } | |
7606 | ||
7607 | goto unknown; | |
7608 | ||
7609 | case 'x': | |
7610 | switch (name[2]) | |
7611 | { | |
7612 | case 'e': | |
7613 | if (name[3] == 'c') | |
7614 | { /* exec */ | |
7615 | return -KEY_exec; | |
7616 | } | |
7617 | ||
7618 | goto unknown; | |
7619 | ||
7620 | case 'i': | |
7621 | if (name[3] == 't') | |
7622 | { /* exit */ | |
7623 | return -KEY_exit; | |
7624 | } | |
7625 | ||
7626 | goto unknown; | |
7627 | ||
7628 | default: | |
7629 | goto unknown; | |
7630 | } | |
7631 | ||
7632 | default: | |
7633 | goto unknown; | |
7634 | } | |
7635 | ||
7636 | case 'f': | |
7637 | if (name[1] == 'o' && | |
7638 | name[2] == 'r' && | |
7639 | name[3] == 'k') | |
7640 | { /* fork */ | |
7641 | return -KEY_fork; | |
7642 | } | |
7643 | ||
7644 | goto unknown; | |
7645 | ||
7646 | case 'g': | |
7647 | switch (name[1]) | |
7648 | { | |
7649 | case 'e': | |
7650 | if (name[2] == 't' && | |
7651 | name[3] == 'c') | |
7652 | { /* getc */ | |
7653 | return -KEY_getc; | |
7654 | } | |
7655 | ||
7656 | goto unknown; | |
7657 | ||
7658 | case 'l': | |
7659 | if (name[2] == 'o' && | |
7660 | name[3] == 'b') | |
7661 | { /* glob */ | |
7662 | return KEY_glob; | |
7663 | } | |
7664 | ||
7665 | goto unknown; | |
7666 | ||
7667 | case 'o': | |
7668 | if (name[2] == 't' && | |
7669 | name[3] == 'o') | |
7670 | { /* goto */ | |
7671 | return KEY_goto; | |
7672 | } | |
7673 | ||
7674 | goto unknown; | |
7675 | ||
7676 | case 'r': | |
7677 | if (name[2] == 'e' && | |
7678 | name[3] == 'p') | |
7679 | { /* grep */ | |
7680 | return KEY_grep; | |
7681 | } | |
7682 | ||
7683 | goto unknown; | |
7684 | ||
7685 | default: | |
7686 | goto unknown; | |
7687 | } | |
7688 | ||
7689 | case 'j': | |
7690 | if (name[1] == 'o' && | |
7691 | name[2] == 'i' && | |
7692 | name[3] == 'n') | |
7693 | { /* join */ | |
7694 | return -KEY_join; | |
7695 | } | |
7696 | ||
7697 | goto unknown; | |
7698 | ||
7699 | case 'k': | |
7700 | switch (name[1]) | |
7701 | { | |
7702 | case 'e': | |
7703 | if (name[2] == 'y' && | |
7704 | name[3] == 's') | |
7705 | { /* keys */ | |
7706 | return -KEY_keys; | |
7707 | } | |
7708 | ||
7709 | goto unknown; | |
7710 | ||
7711 | case 'i': | |
7712 | if (name[2] == 'l' && | |
7713 | name[3] == 'l') | |
7714 | { /* kill */ | |
7715 | return -KEY_kill; | |
7716 | } | |
7717 | ||
7718 | goto unknown; | |
7719 | ||
7720 | default: | |
7721 | goto unknown; | |
7722 | } | |
7723 | ||
7724 | case 'l': | |
7725 | switch (name[1]) | |
7726 | { | |
7727 | case 'a': | |
7728 | if (name[2] == 's' && | |
7729 | name[3] == 't') | |
7730 | { /* last */ | |
7731 | return KEY_last; | |
7732 | } | |
7733 | ||
7734 | goto unknown; | |
7735 | ||
7736 | case 'i': | |
7737 | if (name[2] == 'n' && | |
7738 | name[3] == 'k') | |
7739 | { /* link */ | |
7740 | return -KEY_link; | |
7741 | } | |
7742 | ||
7743 | goto unknown; | |
7744 | ||
7745 | case 'o': | |
7746 | if (name[2] == 'c' && | |
7747 | name[3] == 'k') | |
7748 | { /* lock */ | |
7749 | return -KEY_lock; | |
7750 | } | |
7751 | ||
7752 | goto unknown; | |
7753 | ||
7754 | default: | |
7755 | goto unknown; | |
7756 | } | |
7757 | ||
7758 | case 'n': | |
7759 | if (name[1] == 'e' && | |
7760 | name[2] == 'x' && | |
7761 | name[3] == 't') | |
7762 | { /* next */ | |
7763 | return KEY_next; | |
7764 | } | |
7765 | ||
7766 | goto unknown; | |
7767 | ||
7768 | case 'o': | |
7769 | if (name[1] == 'p' && | |
7770 | name[2] == 'e' && | |
7771 | name[3] == 'n') | |
7772 | { /* open */ | |
7773 | return -KEY_open; | |
7774 | } | |
7775 | ||
7776 | goto unknown; | |
7777 | ||
7778 | case 'p': | |
7779 | switch (name[1]) | |
7780 | { | |
7781 | case 'a': | |
7782 | if (name[2] == 'c' && | |
7783 | name[3] == 'k') | |
7784 | { /* pack */ | |
7785 | return -KEY_pack; | |
7786 | } | |
7787 | ||
7788 | goto unknown; | |
7789 | ||
7790 | case 'i': | |
7791 | if (name[2] == 'p' && | |
7792 | name[3] == 'e') | |
7793 | { /* pipe */ | |
7794 | return -KEY_pipe; | |
7795 | } | |
7796 | ||
7797 | goto unknown; | |
7798 | ||
7799 | case 'u': | |
7800 | if (name[2] == 's' && | |
7801 | name[3] == 'h') | |
7802 | { /* push */ | |
7803 | return -KEY_push; | |
7804 | } | |
7805 | ||
7806 | goto unknown; | |
7807 | ||
7808 | default: | |
7809 | goto unknown; | |
7810 | } | |
7811 | ||
7812 | case 'r': | |
7813 | switch (name[1]) | |
7814 | { | |
7815 | case 'a': | |
7816 | if (name[2] == 'n' && | |
7817 | name[3] == 'd') | |
7818 | { /* rand */ | |
7819 | return -KEY_rand; | |
7820 | } | |
7821 | ||
7822 | goto unknown; | |
7823 | ||
7824 | case 'e': | |
7825 | switch (name[2]) | |
7826 | { | |
7827 | case 'a': | |
7828 | if (name[3] == 'd') | |
7829 | { /* read */ | |
7830 | return -KEY_read; | |
7831 | } | |
7832 | ||
7833 | goto unknown; | |
7834 | ||
7835 | case 'c': | |
7836 | if (name[3] == 'v') | |
7837 | { /* recv */ | |
7838 | return -KEY_recv; | |
7839 | } | |
7840 | ||
7841 | goto unknown; | |
7842 | ||
7843 | case 'd': | |
7844 | if (name[3] == 'o') | |
7845 | { /* redo */ | |
7846 | return KEY_redo; | |
7847 | } | |
7848 | ||
7849 | goto unknown; | |
7850 | ||
7851 | default: | |
7852 | goto unknown; | |
7853 | } | |
7854 | ||
7855 | default: | |
7856 | goto unknown; | |
7857 | } | |
7858 | ||
7859 | case 's': | |
7860 | switch (name[1]) | |
7861 | { | |
7862 | case 'e': | |
7863 | switch (name[2]) | |
7864 | { | |
7865 | case 'e': | |
7866 | if (name[3] == 'k') | |
7867 | { /* seek */ | |
7868 | return -KEY_seek; | |
7869 | } | |
7870 | ||
7871 | goto unknown; | |
7872 | ||
7873 | case 'n': | |
7874 | if (name[3] == 'd') | |
7875 | { /* send */ | |
7876 | return -KEY_send; | |
7877 | } | |
7878 | ||
7879 | goto unknown; | |
7880 | ||
7881 | default: | |
7882 | goto unknown; | |
7883 | } | |
7884 | ||
7885 | case 'o': | |
7886 | if (name[2] == 'r' && | |
7887 | name[3] == 't') | |
7888 | { /* sort */ | |
7889 | return KEY_sort; | |
7890 | } | |
7891 | ||
7892 | goto unknown; | |
7893 | ||
7894 | case 'q': | |
7895 | if (name[2] == 'r' && | |
7896 | name[3] == 't') | |
7897 | { /* sqrt */ | |
7898 | return -KEY_sqrt; | |
7899 | } | |
7900 | ||
7901 | goto unknown; | |
7902 | ||
7903 | case 't': | |
7904 | if (name[2] == 'a' && | |
7905 | name[3] == 't') | |
7906 | { /* stat */ | |
7907 | return -KEY_stat; | |
7908 | } | |
7909 | ||
7910 | goto unknown; | |
7911 | ||
7912 | default: | |
7913 | goto unknown; | |
7914 | } | |
7915 | ||
7916 | case 't': | |
7917 | switch (name[1]) | |
7918 | { | |
7919 | case 'e': | |
7920 | if (name[2] == 'l' && | |
7921 | name[3] == 'l') | |
7922 | { /* tell */ | |
7923 | return -KEY_tell; | |
7924 | } | |
7925 | ||
7926 | goto unknown; | |
7927 | ||
7928 | case 'i': | |
7929 | switch (name[2]) | |
7930 | { | |
7931 | case 'e': | |
7932 | if (name[3] == 'd') | |
7933 | { /* tied */ | |
7934 | return KEY_tied; | |
7935 | } | |
7936 | ||
7937 | goto unknown; | |
7938 | ||
7939 | case 'm': | |
7940 | if (name[3] == 'e') | |
7941 | { /* time */ | |
7942 | return -KEY_time; | |
7943 | } | |
7944 | ||
7945 | goto unknown; | |
7946 | ||
7947 | default: | |
7948 | goto unknown; | |
7949 | } | |
7950 | ||
7951 | default: | |
7952 | goto unknown; | |
7953 | } | |
7954 | ||
7955 | case 'w': | |
0d863452 | 7956 | switch (name[1]) |
4c3bbe0f | 7957 | { |
0d863452 | 7958 | case 'a': |
952306ac RGS |
7959 | switch (name[2]) |
7960 | { | |
7961 | case 'i': | |
7962 | if (name[3] == 't') | |
7963 | { /* wait */ | |
7964 | return -KEY_wait; | |
7965 | } | |
4c3bbe0f | 7966 | |
952306ac | 7967 | goto unknown; |
4c3bbe0f | 7968 | |
952306ac RGS |
7969 | case 'r': |
7970 | if (name[3] == 'n') | |
7971 | { /* warn */ | |
7972 | return -KEY_warn; | |
7973 | } | |
4c3bbe0f | 7974 | |
952306ac | 7975 | goto unknown; |
4c3bbe0f | 7976 | |
952306ac RGS |
7977 | default: |
7978 | goto unknown; | |
7979 | } | |
0d863452 RH |
7980 | |
7981 | case 'h': | |
7982 | if (name[2] == 'e' && | |
7983 | name[3] == 'n') | |
7984 | { /* when */ | |
5458a98a | 7985 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_when : 0); |
952306ac | 7986 | } |
4c3bbe0f | 7987 | |
952306ac | 7988 | goto unknown; |
4c3bbe0f | 7989 | |
952306ac RGS |
7990 | default: |
7991 | goto unknown; | |
7992 | } | |
4c3bbe0f | 7993 | |
0d863452 RH |
7994 | default: |
7995 | goto unknown; | |
7996 | } | |
7997 | ||
952306ac | 7998 | case 5: /* 39 tokens of length 5 */ |
4c3bbe0f | 7999 | switch (name[0]) |
e2e1dd5a | 8000 | { |
4c3bbe0f MHM |
8001 | case 'B': |
8002 | if (name[1] == 'E' && | |
8003 | name[2] == 'G' && | |
8004 | name[3] == 'I' && | |
8005 | name[4] == 'N') | |
8006 | { /* BEGIN */ | |
8007 | return KEY_BEGIN; | |
8008 | } | |
8009 | ||
8010 | goto unknown; | |
8011 | ||
8012 | case 'C': | |
8013 | if (name[1] == 'H' && | |
8014 | name[2] == 'E' && | |
8015 | name[3] == 'C' && | |
8016 | name[4] == 'K') | |
8017 | { /* CHECK */ | |
8018 | return KEY_CHECK; | |
8019 | } | |
8020 | ||
8021 | goto unknown; | |
8022 | ||
8023 | case 'a': | |
8024 | switch (name[1]) | |
8025 | { | |
8026 | case 'l': | |
8027 | if (name[2] == 'a' && | |
8028 | name[3] == 'r' && | |
8029 | name[4] == 'm') | |
8030 | { /* alarm */ | |
8031 | return -KEY_alarm; | |
8032 | } | |
8033 | ||
8034 | goto unknown; | |
8035 | ||
8036 | case 't': | |
8037 | if (name[2] == 'a' && | |
8038 | name[3] == 'n' && | |
8039 | name[4] == '2') | |
8040 | { /* atan2 */ | |
8041 | return -KEY_atan2; | |
8042 | } | |
8043 | ||
8044 | goto unknown; | |
8045 | ||
8046 | default: | |
8047 | goto unknown; | |
8048 | } | |
8049 | ||
8050 | case 'b': | |
0d863452 RH |
8051 | switch (name[1]) |
8052 | { | |
8053 | case 'l': | |
8054 | if (name[2] == 'e' && | |
952306ac RGS |
8055 | name[3] == 's' && |
8056 | name[4] == 's') | |
8057 | { /* bless */ | |
8058 | return -KEY_bless; | |
8059 | } | |
4c3bbe0f | 8060 | |
952306ac | 8061 | goto unknown; |
4c3bbe0f | 8062 | |
0d863452 RH |
8063 | case 'r': |
8064 | if (name[2] == 'e' && | |
8065 | name[3] == 'a' && | |
8066 | name[4] == 'k') | |
8067 | { /* break */ | |
5458a98a | 8068 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? -KEY_break : 0); |
0d863452 RH |
8069 | } |
8070 | ||
8071 | goto unknown; | |
8072 | ||
8073 | default: | |
8074 | goto unknown; | |
8075 | } | |
8076 | ||
4c3bbe0f MHM |
8077 | case 'c': |
8078 | switch (name[1]) | |
8079 | { | |
8080 | case 'h': | |
8081 | switch (name[2]) | |
8082 | { | |
8083 | case 'd': | |
8084 | if (name[3] == 'i' && | |
8085 | name[4] == 'r') | |
8086 | { /* chdir */ | |
8087 | return -KEY_chdir; | |
8088 | } | |
8089 | ||
8090 | goto unknown; | |
8091 | ||
8092 | case 'm': | |
8093 | if (name[3] == 'o' && | |
8094 | name[4] == 'd') | |
8095 | { /* chmod */ | |
8096 | return -KEY_chmod; | |
8097 | } | |
8098 | ||
8099 | goto unknown; | |
8100 | ||
8101 | case 'o': | |
8102 | switch (name[3]) | |
8103 | { | |
8104 | case 'm': | |
8105 | if (name[4] == 'p') | |
8106 | { /* chomp */ | |
8107 | return -KEY_chomp; | |
8108 | } | |
8109 | ||
8110 | goto unknown; | |
8111 | ||
8112 | case 'w': | |
8113 | if (name[4] == 'n') | |
8114 | { /* chown */ | |
8115 | return -KEY_chown; | |
8116 | } | |
8117 | ||
8118 | goto unknown; | |
8119 | ||
8120 | default: | |
8121 | goto unknown; | |
8122 | } | |
8123 | ||
8124 | default: | |
8125 | goto unknown; | |
8126 | } | |
8127 | ||
8128 | case 'l': | |
8129 | if (name[2] == 'o' && | |
8130 | name[3] == 's' && | |
8131 | name[4] == 'e') | |
8132 | { /* close */ | |
8133 | return -KEY_close; | |
8134 | } | |
8135 | ||
8136 | goto unknown; | |
8137 | ||
8138 | case 'r': | |
8139 | if (name[2] == 'y' && | |
8140 | name[3] == 'p' && | |
8141 | name[4] == 't') | |
8142 | { /* crypt */ | |
8143 | return -KEY_crypt; | |
8144 | } | |
8145 | ||
8146 | goto unknown; | |
8147 | ||
8148 | default: | |
8149 | goto unknown; | |
8150 | } | |
8151 | ||
8152 | case 'e': | |
8153 | if (name[1] == 'l' && | |
8154 | name[2] == 's' && | |
8155 | name[3] == 'i' && | |
8156 | name[4] == 'f') | |
8157 | { /* elsif */ | |
8158 | return KEY_elsif; | |
8159 | } | |
8160 | ||
8161 | goto unknown; | |
8162 | ||
8163 | case 'f': | |
8164 | switch (name[1]) | |
8165 | { | |
8166 | case 'c': | |
8167 | if (name[2] == 'n' && | |
8168 | name[3] == 't' && | |
8169 | name[4] == 'l') | |
8170 | { /* fcntl */ | |
8171 | return -KEY_fcntl; | |
8172 | } | |
8173 | ||
8174 | goto unknown; | |
8175 | ||
8176 | case 'l': | |
8177 | if (name[2] == 'o' && | |
8178 | name[3] == 'c' && | |
8179 | name[4] == 'k') | |
8180 | { /* flock */ | |
8181 | return -KEY_flock; | |
8182 | } | |
8183 | ||
8184 | goto unknown; | |
8185 | ||
8186 | default: | |
8187 | goto unknown; | |
8188 | } | |
8189 | ||
0d863452 RH |
8190 | case 'g': |
8191 | if (name[1] == 'i' && | |
8192 | name[2] == 'v' && | |
8193 | name[3] == 'e' && | |
8194 | name[4] == 'n') | |
8195 | { /* given */ | |
5458a98a | 8196 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_given : 0); |
0d863452 RH |
8197 | } |
8198 | ||
8199 | goto unknown; | |
8200 | ||
4c3bbe0f MHM |
8201 | case 'i': |
8202 | switch (name[1]) | |
8203 | { | |
8204 | case 'n': | |
8205 | if (name[2] == 'd' && | |
8206 | name[3] == 'e' && | |
8207 | name[4] == 'x') | |
8208 | { /* index */ | |
8209 | return -KEY_index; | |
8210 | } | |
8211 | ||
8212 | goto unknown; | |
8213 | ||
8214 | case 'o': | |
8215 | if (name[2] == 'c' && | |
8216 | name[3] == 't' && | |
8217 | name[4] == 'l') | |
8218 | { /* ioctl */ | |
8219 | return -KEY_ioctl; | |
8220 | } | |
8221 | ||
8222 | goto unknown; | |
8223 | ||
8224 | default: | |
8225 | goto unknown; | |
8226 | } | |
8227 | ||
8228 | case 'l': | |
8229 | switch (name[1]) | |
8230 | { | |
8231 | case 'o': | |
8232 | if (name[2] == 'c' && | |
8233 | name[3] == 'a' && | |
8234 | name[4] == 'l') | |
8235 | { /* local */ | |
8236 | return KEY_local; | |
8237 | } | |
8238 | ||
8239 | goto unknown; | |
8240 | ||
8241 | case 's': | |
8242 | if (name[2] == 't' && | |
8243 | name[3] == 'a' && | |
8244 | name[4] == 't') | |
8245 | { /* lstat */ | |
8246 | return -KEY_lstat; | |
8247 | } | |
8248 | ||
8249 | goto unknown; | |
8250 | ||
8251 | default: | |
8252 | goto unknown; | |
8253 | } | |
8254 | ||
8255 | case 'm': | |
8256 | if (name[1] == 'k' && | |
8257 | name[2] == 'd' && | |
8258 | name[3] == 'i' && | |
8259 | name[4] == 'r') | |
8260 | { /* mkdir */ | |
8261 | return -KEY_mkdir; | |
8262 | } | |
8263 | ||
8264 | goto unknown; | |
8265 | ||
8266 | case 'p': | |
8267 | if (name[1] == 'r' && | |
8268 | name[2] == 'i' && | |
8269 | name[3] == 'n' && | |
8270 | name[4] == 't') | |
8271 | { /* print */ | |
8272 | return KEY_print; | |
8273 | } | |
8274 | ||
8275 | goto unknown; | |
8276 | ||
8277 | case 'r': | |
8278 | switch (name[1]) | |
8279 | { | |
8280 | case 'e': | |
8281 | if (name[2] == 's' && | |
8282 | name[3] == 'e' && | |
8283 | name[4] == 't') | |
8284 | { /* reset */ | |
8285 | return -KEY_reset; | |
8286 | } | |
8287 | ||
8288 | goto unknown; | |
8289 | ||
8290 | case 'm': | |
8291 | if (name[2] == 'd' && | |
8292 | name[3] == 'i' && | |
8293 | name[4] == 'r') | |
8294 | { /* rmdir */ | |
8295 | return -KEY_rmdir; | |
8296 | } | |
8297 | ||
8298 | goto unknown; | |
8299 | ||
8300 | default: | |
8301 | goto unknown; | |
8302 | } | |
8303 | ||
8304 | case 's': | |
8305 | switch (name[1]) | |
8306 | { | |
8307 | case 'e': | |
8308 | if (name[2] == 'm' && | |
8309 | name[3] == 'o' && | |
8310 | name[4] == 'p') | |
8311 | { /* semop */ | |
8312 | return -KEY_semop; | |
8313 | } | |
8314 | ||
8315 | goto unknown; | |
8316 | ||
8317 | case 'h': | |
8318 | if (name[2] == 'i' && | |
8319 | name[3] == 'f' && | |
8320 | name[4] == 't') | |
8321 | { /* shift */ | |
8322 | return -KEY_shift; | |
8323 | } | |
8324 | ||
8325 | goto unknown; | |
8326 | ||
8327 | case 'l': | |
8328 | if (name[2] == 'e' && | |
8329 | name[3] == 'e' && | |
8330 | name[4] == 'p') | |
8331 | { /* sleep */ | |
8332 | return -KEY_sleep; | |
8333 | } | |
8334 | ||
8335 | goto unknown; | |
8336 | ||
8337 | case 'p': | |
8338 | if (name[2] == 'l' && | |
8339 | name[3] == 'i' && | |
8340 | name[4] == 't') | |
8341 | { /* split */ | |
8342 | return KEY_split; | |
8343 | } | |
8344 | ||
8345 | goto unknown; | |
8346 | ||
8347 | case 'r': | |
8348 | if (name[2] == 'a' && | |
8349 | name[3] == 'n' && | |
8350 | name[4] == 'd') | |
8351 | { /* srand */ | |
8352 | return -KEY_srand; | |
8353 | } | |
8354 | ||
8355 | goto unknown; | |
8356 | ||
8357 | case 't': | |
952306ac RGS |
8358 | switch (name[2]) |
8359 | { | |
8360 | case 'a': | |
8361 | if (name[3] == 't' && | |
8362 | name[4] == 'e') | |
8363 | { /* state */ | |
5458a98a | 8364 | return (all_keywords || FEATURE_IS_ENABLED("state") ? KEY_state : 0); |
952306ac | 8365 | } |
4c3bbe0f | 8366 | |
952306ac RGS |
8367 | goto unknown; |
8368 | ||
8369 | case 'u': | |
8370 | if (name[3] == 'd' && | |
8371 | name[4] == 'y') | |
8372 | { /* study */ | |
8373 | return KEY_study; | |
8374 | } | |
8375 | ||
8376 | goto unknown; | |
8377 | ||
8378 | default: | |
8379 | goto unknown; | |
8380 | } | |
4c3bbe0f MHM |
8381 | |
8382 | default: | |
8383 | goto unknown; | |
8384 | } | |
8385 | ||
8386 | case 't': | |
8387 | if (name[1] == 'i' && | |
8388 | name[2] == 'm' && | |
8389 | name[3] == 'e' && | |
8390 | name[4] == 's') | |
8391 | { /* times */ | |
8392 | return -KEY_times; | |
8393 | } | |
8394 | ||
8395 | goto unknown; | |
8396 | ||
8397 | case 'u': | |
8398 | switch (name[1]) | |
8399 | { | |
8400 | case 'm': | |
8401 | if (name[2] == 'a' && | |
8402 | name[3] == 's' && | |
8403 | name[4] == 'k') | |
8404 | { /* umask */ | |
8405 | return -KEY_umask; | |
8406 | } | |
8407 | ||
8408 | goto unknown; | |
8409 | ||
8410 | case 'n': | |
8411 | switch (name[2]) | |
8412 | { | |
8413 | case 'd': | |
8414 | if (name[3] == 'e' && | |
8415 | name[4] == 'f') | |
8416 | { /* undef */ | |
8417 | return KEY_undef; | |
8418 | } | |
8419 | ||
8420 | goto unknown; | |
8421 | ||
8422 | case 't': | |
8423 | if (name[3] == 'i') | |
8424 | { | |
8425 | switch (name[4]) | |
8426 | { | |
8427 | case 'e': | |
8428 | { /* untie */ | |
8429 | return KEY_untie; | |
8430 | } | |
8431 | ||
4c3bbe0f MHM |
8432 | case 'l': |
8433 | { /* until */ | |
8434 | return KEY_until; | |
8435 | } | |
8436 | ||
4c3bbe0f MHM |
8437 | default: |
8438 | goto unknown; | |
8439 | } | |
8440 | } | |
8441 | ||
8442 | goto unknown; | |
8443 | ||
8444 | default: | |
8445 | goto unknown; | |
8446 | } | |
8447 | ||
8448 | case 't': | |
8449 | if (name[2] == 'i' && | |
8450 | name[3] == 'm' && | |
8451 | name[4] == 'e') | |
8452 | { /* utime */ | |
8453 | return -KEY_utime; | |
8454 | } | |
8455 | ||
8456 | goto unknown; | |
8457 | ||
8458 | default: | |
8459 | goto unknown; | |
8460 | } | |
8461 | ||
8462 | case 'w': | |
8463 | switch (name[1]) | |
8464 | { | |
8465 | case 'h': | |
8466 | if (name[2] == 'i' && | |
8467 | name[3] == 'l' && | |
8468 | name[4] == 'e') | |
8469 | { /* while */ | |
8470 | return KEY_while; | |
8471 | } | |
8472 | ||
8473 | goto unknown; | |
8474 | ||
8475 | case 'r': | |
8476 | if (name[2] == 'i' && | |
8477 | name[3] == 't' && | |
8478 | name[4] == 'e') | |
8479 | { /* write */ | |
8480 | return -KEY_write; | |
8481 | } | |
8482 | ||
8483 | goto unknown; | |
8484 | ||
8485 | default: | |
8486 | goto unknown; | |
8487 | } | |
8488 | ||
8489 | default: | |
8490 | goto unknown; | |
e2e1dd5a | 8491 | } |
4c3bbe0f MHM |
8492 | |
8493 | case 6: /* 33 tokens of length 6 */ | |
8494 | switch (name[0]) | |
8495 | { | |
8496 | case 'a': | |
8497 | if (name[1] == 'c' && | |
8498 | name[2] == 'c' && | |
8499 | name[3] == 'e' && | |
8500 | name[4] == 'p' && | |
8501 | name[5] == 't') | |
8502 | { /* accept */ | |
8503 | return -KEY_accept; | |
8504 | } | |
8505 | ||
8506 | goto unknown; | |
8507 | ||
8508 | case 'c': | |
8509 | switch (name[1]) | |
8510 | { | |
8511 | case 'a': | |
8512 | if (name[2] == 'l' && | |
8513 | name[3] == 'l' && | |
8514 | name[4] == 'e' && | |
8515 | name[5] == 'r') | |
8516 | { /* caller */ | |
8517 | return -KEY_caller; | |
8518 | } | |
8519 | ||
8520 | goto unknown; | |
8521 | ||
8522 | case 'h': | |
8523 | if (name[2] == 'r' && | |
8524 | name[3] == 'o' && | |
8525 | name[4] == 'o' && | |
8526 | name[5] == 't') | |
8527 | { /* chroot */ | |
8528 | return -KEY_chroot; | |
8529 | } | |
8530 | ||
8531 | goto unknown; | |
8532 | ||
8533 | default: | |
8534 | goto unknown; | |
8535 | } | |
8536 | ||
8537 | case 'd': | |
8538 | if (name[1] == 'e' && | |
8539 | name[2] == 'l' && | |
8540 | name[3] == 'e' && | |
8541 | name[4] == 't' && | |
8542 | name[5] == 'e') | |
8543 | { /* delete */ | |
8544 | return KEY_delete; | |
8545 | } | |
8546 | ||
8547 | goto unknown; | |
8548 | ||
8549 | case 'e': | |
8550 | switch (name[1]) | |
8551 | { | |
8552 | case 'l': | |
8553 | if (name[2] == 's' && | |
8554 | name[3] == 'e' && | |
8555 | name[4] == 'i' && | |
8556 | name[5] == 'f') | |
8557 | { /* elseif */ | |
8558 | if(ckWARN_d(WARN_SYNTAX)) | |
8559 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); | |
8560 | } | |
8561 | ||
8562 | goto unknown; | |
8563 | ||
8564 | case 'x': | |
8565 | if (name[2] == 'i' && | |
8566 | name[3] == 's' && | |
8567 | name[4] == 't' && | |
8568 | name[5] == 's') | |
8569 | { /* exists */ | |
8570 | return KEY_exists; | |
8571 | } | |
8572 | ||
8573 | goto unknown; | |
8574 | ||
8575 | default: | |
8576 | goto unknown; | |
8577 | } | |
8578 | ||
8579 | case 'f': | |
8580 | switch (name[1]) | |
8581 | { | |
8582 | case 'i': | |
8583 | if (name[2] == 'l' && | |
8584 | name[3] == 'e' && | |
8585 | name[4] == 'n' && | |
8586 | name[5] == 'o') | |
8587 | { /* fileno */ | |
8588 | return -KEY_fileno; | |
8589 | } | |
8590 | ||
8591 | goto unknown; | |
8592 | ||
8593 | case 'o': | |
8594 | if (name[2] == 'r' && | |
8595 | name[3] == 'm' && | |
8596 | name[4] == 'a' && | |
8597 | name[5] == 't') | |
8598 | { /* format */ | |
8599 | return KEY_format; | |
8600 | } | |
8601 | ||
8602 | goto unknown; | |
8603 | ||
8604 | default: | |
8605 | goto unknown; | |
8606 | } | |
8607 | ||
8608 | case 'g': | |
8609 | if (name[1] == 'm' && | |
8610 | name[2] == 't' && | |
8611 | name[3] == 'i' && | |
8612 | name[4] == 'm' && | |
8613 | name[5] == 'e') | |
8614 | { /* gmtime */ | |
8615 | return -KEY_gmtime; | |
8616 | } | |
8617 | ||
8618 | goto unknown; | |
8619 | ||
8620 | case 'l': | |
8621 | switch (name[1]) | |
8622 | { | |
8623 | case 'e': | |
8624 | if (name[2] == 'n' && | |
8625 | name[3] == 'g' && | |
8626 | name[4] == 't' && | |
8627 | name[5] == 'h') | |
8628 | { /* length */ | |
8629 | return -KEY_length; | |
8630 | } | |
8631 | ||
8632 | goto unknown; | |
8633 | ||
8634 | case 'i': | |
8635 | if (name[2] == 's' && | |
8636 | name[3] == 't' && | |
8637 | name[4] == 'e' && | |
8638 | name[5] == 'n') | |
8639 | { /* listen */ | |
8640 | return -KEY_listen; | |
8641 | } | |
8642 | ||
8643 | goto unknown; | |
8644 | ||
8645 | default: | |
8646 | goto unknown; | |
8647 | } | |
8648 | ||
8649 | case 'm': | |
8650 | if (name[1] == 's' && | |
8651 | name[2] == 'g') | |
8652 | { | |
8653 | switch (name[3]) | |
8654 | { | |
8655 | case 'c': | |
8656 | if (name[4] == 't' && | |
8657 | name[5] == 'l') | |
8658 | { /* msgctl */ | |
8659 | return -KEY_msgctl; | |
8660 | } | |
8661 | ||
8662 | goto unknown; | |
8663 | ||
8664 | case 'g': | |
8665 | if (name[4] == 'e' && | |
8666 | name[5] == 't') | |
8667 | { /* msgget */ | |
8668 | return -KEY_msgget; | |
8669 | } | |
8670 | ||
8671 | goto unknown; | |
8672 | ||
8673 | case 'r': | |
8674 | if (name[4] == 'c' && | |
8675 | name[5] == 'v') | |
8676 | { /* msgrcv */ | |
8677 | return -KEY_msgrcv; | |
8678 | } | |
8679 | ||
8680 | goto unknown; | |
8681 | ||
8682 | case 's': | |
8683 | if (name[4] == 'n' && | |
8684 | name[5] == 'd') | |
8685 | { /* msgsnd */ | |
8686 | return -KEY_msgsnd; | |
8687 | } | |
8688 | ||
8689 | goto unknown; | |
8690 | ||
8691 | default: | |
8692 | goto unknown; | |
8693 | } | |
8694 | } | |
8695 | ||
8696 | goto unknown; | |
8697 | ||
8698 | case 'p': | |
8699 | if (name[1] == 'r' && | |
8700 | name[2] == 'i' && | |
8701 | name[3] == 'n' && | |
8702 | name[4] == 't' && | |
8703 | name[5] == 'f') | |
8704 | { /* printf */ | |
8705 | return KEY_printf; | |
8706 | } | |
8707 | ||
8708 | goto unknown; | |
8709 | ||
8710 | case 'r': | |
8711 | switch (name[1]) | |
8712 | { | |
8713 | case 'e': | |
8714 | switch (name[2]) | |
8715 | { | |
8716 | case 'n': | |
8717 | if (name[3] == 'a' && | |
8718 | name[4] == 'm' && | |
8719 | name[5] == 'e') | |
8720 | { /* rename */ | |
8721 | return -KEY_rename; | |
8722 | } | |
8723 | ||
8724 | goto unknown; | |
8725 | ||
8726 | case 't': | |
8727 | if (name[3] == 'u' && | |
8728 | name[4] == 'r' && | |
8729 | name[5] == 'n') | |
8730 | { /* return */ | |
8731 | return KEY_return; | |
8732 | } | |
8733 | ||
8734 | goto unknown; | |
8735 | ||
8736 | default: | |
8737 | goto unknown; | |
8738 | } | |
8739 | ||
8740 | case 'i': | |
8741 | if (name[2] == 'n' && | |
8742 | name[3] == 'd' && | |
8743 | name[4] == 'e' && | |
8744 | name[5] == 'x') | |
8745 | { /* rindex */ | |
8746 | return -KEY_rindex; | |
8747 | } | |
8748 | ||
8749 | goto unknown; | |
8750 | ||
8751 | default: | |
8752 | goto unknown; | |
8753 | } | |
8754 | ||
8755 | case 's': | |
8756 | switch (name[1]) | |
8757 | { | |
8758 | case 'c': | |
8759 | if (name[2] == 'a' && | |
8760 | name[3] == 'l' && | |
8761 | name[4] == 'a' && | |
8762 | name[5] == 'r') | |
8763 | { /* scalar */ | |
8764 | return KEY_scalar; | |
8765 | } | |
8766 | ||
8767 | goto unknown; | |
8768 | ||
8769 | case 'e': | |
8770 | switch (name[2]) | |
8771 | { | |
8772 | case 'l': | |
8773 | if (name[3] == 'e' && | |
8774 | name[4] == 'c' && | |
8775 | name[5] == 't') | |
8776 | { /* select */ | |
8777 | return -KEY_select; | |
8778 | } | |
8779 | ||
8780 | goto unknown; | |
8781 | ||
8782 | case 'm': | |
8783 | switch (name[3]) | |
8784 | { | |
8785 | case 'c': | |
8786 | if (name[4] == 't' && | |
8787 | name[5] == 'l') | |
8788 | { /* semctl */ | |
8789 | return -KEY_semctl; | |
8790 | } | |
8791 | ||
8792 | goto unknown; | |
8793 | ||
8794 | case 'g': | |
8795 | if (name[4] == 'e' && | |
8796 | name[5] == 't') | |
8797 | { /* semget */ | |
8798 | return -KEY_semget; | |
8799 | } | |
8800 | ||
8801 | goto unknown; | |
8802 | ||
8803 | default: | |
8804 | goto unknown; | |
8805 | } | |
8806 | ||
8807 | default: | |
8808 | goto unknown; | |
8809 | } | |
8810 | ||
8811 | case 'h': | |
8812 | if (name[2] == 'm') | |
8813 | { | |
8814 | switch (name[3]) | |
8815 | { | |
8816 | case 'c': | |
8817 | if (name[4] == 't' && | |
8818 | name[5] == 'l') | |
8819 | { /* shmctl */ | |
8820 | return -KEY_shmctl; | |
8821 | } | |
8822 | ||
8823 | goto unknown; | |
8824 | ||
8825 | case 'g': | |
8826 | if (name[4] == 'e' && | |
8827 | name[5] == 't') | |
8828 | { /* shmget */ | |
8829 | return -KEY_shmget; | |
8830 | } | |
8831 | ||
8832 | goto unknown; | |
8833 | ||
8834 | default: | |
8835 | goto unknown; | |
8836 | } | |
8837 | } | |
8838 | ||
8839 | goto unknown; | |
8840 | ||
8841 | case 'o': | |
8842 | if (name[2] == 'c' && | |
8843 | name[3] == 'k' && | |
8844 | name[4] == 'e' && | |
8845 | name[5] == 't') | |
8846 | { /* socket */ | |
8847 | return -KEY_socket; | |
8848 | } | |
8849 | ||
8850 | goto unknown; | |
8851 | ||
8852 | case 'p': | |
8853 | if (name[2] == 'l' && | |
8854 | name[3] == 'i' && | |
8855 | name[4] == 'c' && | |
8856 | name[5] == 'e') | |
8857 | { /* splice */ | |
8858 | return -KEY_splice; | |
8859 | } | |
8860 | ||
8861 | goto unknown; | |
8862 | ||
8863 | case 'u': | |
8864 | if (name[2] == 'b' && | |
8865 | name[3] == 's' && | |
8866 | name[4] == 't' && | |
8867 | name[5] == 'r') | |
8868 | { /* substr */ | |
8869 | return -KEY_substr; | |
8870 | } | |
8871 | ||
8872 | goto unknown; | |
8873 | ||
8874 | case 'y': | |
8875 | if (name[2] == 's' && | |
8876 | name[3] == 't' && | |
8877 | name[4] == 'e' && | |
8878 | name[5] == 'm') | |
8879 | { /* system */ | |
8880 | return -KEY_system; | |
8881 | } | |
8882 | ||
8883 | goto unknown; | |
8884 | ||
8885 | default: | |
8886 | goto unknown; | |
8887 | } | |
8888 | ||
8889 | case 'u': | |
8890 | if (name[1] == 'n') | |
8891 | { | |
8892 | switch (name[2]) | |
8893 | { | |
8894 | case 'l': | |
8895 | switch (name[3]) | |
8896 | { | |
8897 | case 'e': | |
8898 | if (name[4] == 's' && | |
8899 | name[5] == 's') | |
8900 | { /* unless */ | |
8901 | return KEY_unless; | |
8902 | } | |
8903 | ||
8904 | goto unknown; | |
8905 | ||
8906 | case 'i': | |
8907 | if (name[4] == 'n' && | |
8908 | name[5] == 'k') | |
8909 | { /* unlink */ | |
8910 | return -KEY_unlink; | |
8911 | } | |
8912 | ||
8913 | goto unknown; | |
8914 | ||
8915 | default: | |
8916 | goto unknown; | |
8917 | } | |
8918 | ||
8919 | case 'p': | |
8920 | if (name[3] == 'a' && | |
8921 | name[4] == 'c' && | |
8922 | name[5] == 'k') | |
8923 | { /* unpack */ | |
8924 | return -KEY_unpack; | |
8925 | } | |
8926 | ||
8927 | goto unknown; | |
8928 | ||
8929 | default: | |
8930 | goto unknown; | |
8931 | } | |
8932 | } | |
8933 | ||
8934 | goto unknown; | |
8935 | ||
8936 | case 'v': | |
8937 | if (name[1] == 'a' && | |
8938 | name[2] == 'l' && | |
8939 | name[3] == 'u' && | |
8940 | name[4] == 'e' && | |
8941 | name[5] == 's') | |
8942 | { /* values */ | |
8943 | return -KEY_values; | |
8944 | } | |
8945 | ||
8946 | goto unknown; | |
8947 | ||
8948 | default: | |
8949 | goto unknown; | |
e2e1dd5a | 8950 | } |
4c3bbe0f | 8951 | |
0d863452 | 8952 | case 7: /* 29 tokens of length 7 */ |
4c3bbe0f MHM |
8953 | switch (name[0]) |
8954 | { | |
8955 | case 'D': | |
8956 | if (name[1] == 'E' && | |
8957 | name[2] == 'S' && | |
8958 | name[3] == 'T' && | |
8959 | name[4] == 'R' && | |
8960 | name[5] == 'O' && | |
8961 | name[6] == 'Y') | |
8962 | { /* DESTROY */ | |
8963 | return KEY_DESTROY; | |
8964 | } | |
8965 | ||
8966 | goto unknown; | |
8967 | ||
8968 | case '_': | |
8969 | if (name[1] == '_' && | |
8970 | name[2] == 'E' && | |
8971 | name[3] == 'N' && | |
8972 | name[4] == 'D' && | |
8973 | name[5] == '_' && | |
8974 | name[6] == '_') | |
8975 | { /* __END__ */ | |
8976 | return KEY___END__; | |
8977 | } | |
8978 | ||
8979 | goto unknown; | |
8980 | ||
8981 | case 'b': | |
8982 | if (name[1] == 'i' && | |
8983 | name[2] == 'n' && | |
8984 | name[3] == 'm' && | |
8985 | name[4] == 'o' && | |
8986 | name[5] == 'd' && | |
8987 | name[6] == 'e') | |
8988 | { /* binmode */ | |
8989 | return -KEY_binmode; | |
8990 | } | |
8991 | ||
8992 | goto unknown; | |
8993 | ||
8994 | case 'c': | |
8995 | if (name[1] == 'o' && | |
8996 | name[2] == 'n' && | |
8997 | name[3] == 'n' && | |
8998 | name[4] == 'e' && | |
8999 | name[5] == 'c' && | |
9000 | name[6] == 't') | |
9001 | { /* connect */ | |
9002 | return -KEY_connect; | |
9003 | } | |
9004 | ||
9005 | goto unknown; | |
9006 | ||
9007 | case 'd': | |
9008 | switch (name[1]) | |
9009 | { | |
9010 | case 'b': | |
9011 | if (name[2] == 'm' && | |
9012 | name[3] == 'o' && | |
9013 | name[4] == 'p' && | |
9014 | name[5] == 'e' && | |
9015 | name[6] == 'n') | |
9016 | { /* dbmopen */ | |
9017 | return -KEY_dbmopen; | |
9018 | } | |
9019 | ||
9020 | goto unknown; | |
9021 | ||
9022 | case 'e': | |
0d863452 RH |
9023 | if (name[2] == 'f') |
9024 | { | |
9025 | switch (name[3]) | |
9026 | { | |
9027 | case 'a': | |
9028 | if (name[4] == 'u' && | |
9029 | name[5] == 'l' && | |
9030 | name[6] == 't') | |
9031 | { /* default */ | |
5458a98a | 9032 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_default : 0); |
0d863452 RH |
9033 | } |
9034 | ||
9035 | goto unknown; | |
9036 | ||
9037 | case 'i': | |
9038 | if (name[4] == 'n' && | |
952306ac RGS |
9039 | name[5] == 'e' && |
9040 | name[6] == 'd') | |
9041 | { /* defined */ | |
9042 | return KEY_defined; | |
9043 | } | |
4c3bbe0f | 9044 | |
952306ac | 9045 | goto unknown; |
4c3bbe0f | 9046 | |
952306ac RGS |
9047 | default: |
9048 | goto unknown; | |
9049 | } | |
0d863452 RH |
9050 | } |
9051 | ||
9052 | goto unknown; | |
9053 | ||
9054 | default: | |
9055 | goto unknown; | |
9056 | } | |
4c3bbe0f MHM |
9057 | |
9058 | case 'f': | |
9059 | if (name[1] == 'o' && | |
9060 | name[2] == 'r' && | |
9061 | name[3] == 'e' && | |
9062 | name[4] == 'a' && | |
9063 | name[5] == 'c' && | |
9064 | name[6] == 'h') | |
9065 | { /* foreach */ | |
9066 | return KEY_foreach; | |
9067 | } | |
9068 | ||
9069 | goto unknown; | |
9070 | ||
9071 | case 'g': | |
9072 | if (name[1] == 'e' && | |
9073 | name[2] == 't' && | |
9074 | name[3] == 'p') | |
9075 | { | |
9076 | switch (name[4]) | |
9077 | { | |
9078 | case 'g': | |
9079 | if (name[5] == 'r' && | |
9080 | name[6] == 'p') | |
9081 | { /* getpgrp */ | |
9082 | return -KEY_getpgrp; | |
9083 | } | |
9084 | ||
9085 | goto unknown; | |
9086 | ||
9087 | case 'p': | |
9088 | if (name[5] == 'i' && | |
9089 | name[6] == 'd') | |
9090 | { /* getppid */ | |
9091 | return -KEY_getppid; | |
9092 | } | |
9093 | ||
9094 | goto unknown; | |
9095 | ||
9096 | default: | |
9097 | goto unknown; | |
9098 | } | |
9099 | } | |
9100 | ||
9101 | goto unknown; | |
9102 | ||
9103 | case 'l': | |
9104 | if (name[1] == 'c' && | |
9105 | name[2] == 'f' && | |
9106 | name[3] == 'i' && | |
9107 | name[4] == 'r' && | |
9108 | name[5] == 's' && | |
9109 | name[6] == 't') | |
9110 | { /* lcfirst */ | |
9111 | return -KEY_lcfirst; | |
9112 | } | |
9113 | ||
9114 | goto unknown; | |
9115 | ||
9116 | case 'o': | |
9117 | if (name[1] == 'p' && | |
9118 | name[2] == 'e' && | |
9119 | name[3] == 'n' && | |
9120 | name[4] == 'd' && | |
9121 | name[5] == 'i' && | |
9122 | name[6] == 'r') | |
9123 | { /* opendir */ | |
9124 | return -KEY_opendir; | |
9125 | } | |
9126 | ||
9127 | goto unknown; | |
9128 | ||
9129 | case 'p': | |
9130 | if (name[1] == 'a' && | |
9131 | name[2] == 'c' && | |
9132 | name[3] == 'k' && | |
9133 | name[4] == 'a' && | |
9134 | name[5] == 'g' && | |
9135 | name[6] == 'e') | |
9136 | { /* package */ | |
9137 | return KEY_package; | |
9138 | } | |
9139 | ||
9140 | goto unknown; | |
9141 | ||
9142 | case 'r': | |
9143 | if (name[1] == 'e') | |
9144 | { | |
9145 | switch (name[2]) | |
9146 | { | |
9147 | case 'a': | |
9148 | if (name[3] == 'd' && | |
9149 | name[4] == 'd' && | |
9150 | name[5] == 'i' && | |
9151 | name[6] == 'r') | |
9152 | { /* readdir */ | |
9153 | return -KEY_readdir; | |
9154 | } | |
9155 | ||
9156 | goto unknown; | |
9157 | ||
9158 | case 'q': | |
9159 | if (name[3] == 'u' && | |
9160 | name[4] == 'i' && | |
9161 | name[5] == 'r' && | |
9162 | name[6] == 'e') | |
9163 | { /* require */ | |
9164 | return KEY_require; | |
9165 | } | |
9166 | ||
9167 | goto unknown; | |
9168 | ||
9169 | case 'v': | |
9170 | if (name[3] == 'e' && | |
9171 | name[4] == 'r' && | |
9172 | name[5] == 's' && | |
9173 | name[6] == 'e') | |
9174 | { /* reverse */ | |
9175 | return -KEY_reverse; | |
9176 | } | |
9177 | ||
9178 | goto unknown; | |
9179 | ||
9180 | default: | |
9181 | goto unknown; | |
9182 | } | |
9183 | } | |
9184 | ||
9185 | goto unknown; | |
9186 | ||
9187 | case 's': | |
9188 | switch (name[1]) | |
9189 | { | |
9190 | case 'e': | |
9191 | switch (name[2]) | |
9192 | { | |
9193 | case 'e': | |
9194 | if (name[3] == 'k' && | |
9195 | name[4] == 'd' && | |
9196 | name[5] == 'i' && | |
9197 | name[6] == 'r') | |
9198 | { /* seekdir */ | |
9199 | return -KEY_seekdir; | |
9200 | } | |
9201 | ||
9202 | goto unknown; | |
9203 | ||
9204 | case 't': | |
9205 | if (name[3] == 'p' && | |
9206 | name[4] == 'g' && | |
9207 | name[5] == 'r' && | |
9208 | name[6] == 'p') | |
9209 | { /* setpgrp */ | |
9210 | return -KEY_setpgrp; | |
9211 | } | |
9212 | ||
9213 | goto unknown; | |
9214 | ||
9215 | default: | |
9216 | goto unknown; | |
9217 | } | |
9218 | ||
9219 | case 'h': | |
9220 | if (name[2] == 'm' && | |
9221 | name[3] == 'r' && | |
9222 | name[4] == 'e' && | |
9223 | name[5] == 'a' && | |
9224 | name[6] == 'd') | |
9225 | { /* shmread */ | |
9226 | return -KEY_shmread; | |
9227 | } | |
9228 | ||
9229 | goto unknown; | |
9230 | ||
9231 | case 'p': | |
9232 | if (name[2] == 'r' && | |
9233 | name[3] == 'i' && | |
9234 | name[4] == 'n' && | |
9235 | name[5] == 't' && | |
9236 | name[6] == 'f') | |
9237 | { /* sprintf */ | |
9238 | return -KEY_sprintf; | |
9239 | } | |
9240 | ||
9241 | goto unknown; | |
9242 | ||
9243 | case 'y': | |
9244 | switch (name[2]) | |
9245 | { | |
9246 | case 'm': | |
9247 | if (name[3] == 'l' && | |
9248 | name[4] == 'i' && | |
9249 | name[5] == 'n' && | |
9250 | name[6] == 'k') | |
9251 | { /* symlink */ | |
9252 | return -KEY_symlink; | |
9253 | } | |
9254 | ||
9255 | goto unknown; | |
9256 | ||
9257 | case 's': | |
9258 | switch (name[3]) | |
9259 | { | |
9260 | case 'c': | |
9261 | if (name[4] == 'a' && | |
9262 | name[5] == 'l' && | |
9263 | name[6] == 'l') | |
9264 | { /* syscall */ | |
9265 | return -KEY_syscall; | |
9266 | } | |
9267 | ||
9268 | goto unknown; | |
9269 | ||
9270 | case 'o': | |
9271 | if (name[4] == 'p' && | |
9272 | name[5] == 'e' && | |
9273 | name[6] == 'n') | |
9274 | { /* sysopen */ | |
9275 | return -KEY_sysopen; | |
9276 | } | |
9277 | ||
9278 | goto unknown; | |
9279 | ||
9280 | case 'r': | |
9281 | if (name[4] == 'e' && | |
9282 | name[5] == 'a' && | |
9283 | name[6] == 'd') | |
9284 | { /* sysread */ | |
9285 | return -KEY_sysread; | |
9286 | } | |
9287 | ||
9288 | goto unknown; | |
9289 | ||
9290 | case 's': | |
9291 | if (name[4] == 'e' && | |
9292 | name[5] == 'e' && | |
9293 | name[6] == 'k') | |
9294 | { /* sysseek */ | |
9295 | return -KEY_sysseek; | |
9296 | } | |
9297 | ||
9298 | goto unknown; | |
9299 | ||
9300 | default: | |
9301 | goto unknown; | |
9302 | } | |
9303 | ||
9304 | default: | |
9305 | goto unknown; | |
9306 | } | |
9307 | ||
9308 | default: | |
9309 | goto unknown; | |
9310 | } | |
9311 | ||
9312 | case 't': | |
9313 | if (name[1] == 'e' && | |
9314 | name[2] == 'l' && | |
9315 | name[3] == 'l' && | |
9316 | name[4] == 'd' && | |
9317 | name[5] == 'i' && | |
9318 | name[6] == 'r') | |
9319 | { /* telldir */ | |
9320 | return -KEY_telldir; | |
9321 | } | |
9322 | ||
9323 | goto unknown; | |
9324 | ||
9325 | case 'u': | |
9326 | switch (name[1]) | |
9327 | { | |
9328 | case 'c': | |
9329 | if (name[2] == 'f' && | |
9330 | name[3] == 'i' && | |
9331 | name[4] == 'r' && | |
9332 | name[5] == 's' && | |
9333 | name[6] == 't') | |
9334 | { /* ucfirst */ | |
9335 | return -KEY_ucfirst; | |
9336 | } | |
9337 | ||
9338 | goto unknown; | |
9339 | ||
9340 | case 'n': | |
9341 | if (name[2] == 's' && | |
9342 | name[3] == 'h' && | |
9343 | name[4] == 'i' && | |
9344 | name[5] == 'f' && | |
9345 | name[6] == 't') | |
9346 | { /* unshift */ | |
9347 | return -KEY_unshift; | |
9348 | } | |
9349 | ||
9350 | goto unknown; | |
9351 | ||
9352 | default: | |
9353 | goto unknown; | |
9354 | } | |
9355 | ||
9356 | case 'w': | |
9357 | if (name[1] == 'a' && | |
9358 | name[2] == 'i' && | |
9359 | name[3] == 't' && | |
9360 | name[4] == 'p' && | |
9361 | name[5] == 'i' && | |
9362 | name[6] == 'd') | |
9363 | { /* waitpid */ | |
9364 | return -KEY_waitpid; | |
9365 | } | |
9366 | ||
9367 | goto unknown; | |
9368 | ||
9369 | default: | |
9370 | goto unknown; | |
9371 | } | |
9372 | ||
9373 | case 8: /* 26 tokens of length 8 */ | |
9374 | switch (name[0]) | |
9375 | { | |
9376 | case 'A': | |
9377 | if (name[1] == 'U' && | |
9378 | name[2] == 'T' && | |
9379 | name[3] == 'O' && | |
9380 | name[4] == 'L' && | |
9381 | name[5] == 'O' && | |
9382 | name[6] == 'A' && | |
9383 | name[7] == 'D') | |
9384 | { /* AUTOLOAD */ | |
9385 | return KEY_AUTOLOAD; | |
9386 | } | |
9387 | ||
9388 | goto unknown; | |
9389 | ||
9390 | case '_': | |
9391 | if (name[1] == '_') | |
9392 | { | |
9393 | switch (name[2]) | |
9394 | { | |
9395 | case 'D': | |
9396 | if (name[3] == 'A' && | |
9397 | name[4] == 'T' && | |
9398 | name[5] == 'A' && | |
9399 | name[6] == '_' && | |
9400 | name[7] == '_') | |
9401 | { /* __DATA__ */ | |
9402 | return KEY___DATA__; | |
9403 | } | |
9404 | ||
9405 | goto unknown; | |
9406 | ||
9407 | case 'F': | |
9408 | if (name[3] == 'I' && | |
9409 | name[4] == 'L' && | |
9410 | name[5] == 'E' && | |
9411 | name[6] == '_' && | |
9412 | name[7] == '_') | |
9413 | { /* __FILE__ */ | |
9414 | return -KEY___FILE__; | |
9415 | } | |
9416 | ||
9417 | goto unknown; | |
9418 | ||
9419 | case 'L': | |
9420 | if (name[3] == 'I' && | |
9421 | name[4] == 'N' && | |
9422 | name[5] == 'E' && | |
9423 | name[6] == '_' && | |
9424 | name[7] == '_') | |
9425 | { /* __LINE__ */ | |
9426 | return -KEY___LINE__; | |
9427 | } | |
9428 | ||
9429 | goto unknown; | |
9430 | ||
9431 | default: | |
9432 | goto unknown; | |
9433 | } | |
9434 | } | |
9435 | ||
9436 | goto unknown; | |
9437 | ||
9438 | case 'c': | |
9439 | switch (name[1]) | |
9440 | { | |
9441 | case 'l': | |
9442 | if (name[2] == 'o' && | |
9443 | name[3] == 's' && | |
9444 | name[4] == 'e' && | |
9445 | name[5] == 'd' && | |
9446 | name[6] == 'i' && | |
9447 | name[7] == 'r') | |
9448 | { /* closedir */ | |
9449 | return -KEY_closedir; | |
9450 | } | |
9451 | ||
9452 | goto unknown; | |
9453 | ||
9454 | case 'o': | |
9455 | if (name[2] == 'n' && | |
9456 | name[3] == 't' && | |
9457 | name[4] == 'i' && | |
9458 | name[5] == 'n' && | |
9459 | name[6] == 'u' && | |
9460 | name[7] == 'e') | |
9461 | { /* continue */ | |
9462 | return -KEY_continue; | |
9463 | } | |
9464 | ||
9465 | goto unknown; | |
9466 | ||
9467 | default: | |
9468 | goto unknown; | |
9469 | } | |
9470 | ||
9471 | case 'd': | |
9472 | if (name[1] == 'b' && | |
9473 | name[2] == 'm' && | |
9474 | name[3] == 'c' && | |
9475 | name[4] == 'l' && | |
9476 | name[5] == 'o' && | |
9477 | name[6] == 's' && | |
9478 | name[7] == 'e') | |
9479 | { /* dbmclose */ | |
9480 | return -KEY_dbmclose; | |
9481 | } | |
9482 | ||
9483 | goto unknown; | |
9484 | ||
9485 | case 'e': | |
9486 | if (name[1] == 'n' && | |
9487 | name[2] == 'd') | |
9488 | { | |
9489 | switch (name[3]) | |
9490 | { | |
9491 | case 'g': | |
9492 | if (name[4] == 'r' && | |
9493 | name[5] == 'e' && | |
9494 | name[6] == 'n' && | |
9495 | name[7] == 't') | |
9496 | { /* endgrent */ | |
9497 | return -KEY_endgrent; | |
9498 | } | |
9499 | ||
9500 | goto unknown; | |
9501 | ||
9502 | case 'p': | |
9503 | if (name[4] == 'w' && | |
9504 | name[5] == 'e' && | |
9505 | name[6] == 'n' && | |
9506 | name[7] == 't') | |
9507 | { /* endpwent */ | |
9508 | return -KEY_endpwent; | |
9509 | } | |
9510 | ||
9511 | goto unknown; | |
9512 | ||
9513 | default: | |
9514 | goto unknown; | |
9515 | } | |
9516 | } | |
9517 | ||
9518 | goto unknown; | |
9519 | ||
9520 | case 'f': | |
9521 | if (name[1] == 'o' && | |
9522 | name[2] == 'r' && | |
9523 | name[3] == 'm' && | |
9524 | name[4] == 'l' && | |
9525 | name[5] == 'i' && | |
9526 | name[6] == 'n' && | |
9527 | name[7] == 'e') | |
9528 | { /* formline */ | |
9529 | return -KEY_formline; | |
9530 | } | |
9531 | ||
9532 | goto unknown; | |
9533 | ||
9534 | case 'g': | |
9535 | if (name[1] == 'e' && | |
9536 | name[2] == 't') | |
9537 | { | |
9538 | switch (name[3]) | |
9539 | { | |
9540 | case 'g': | |
9541 | if (name[4] == 'r') | |
9542 | { | |
9543 | switch (name[5]) | |
9544 | { | |
9545 | case 'e': | |
9546 | if (name[6] == 'n' && | |
9547 | name[7] == 't') | |
9548 | { /* getgrent */ | |
9549 | return -KEY_getgrent; | |
9550 | } | |
9551 | ||
9552 | goto unknown; | |
9553 | ||
9554 | case 'g': | |
9555 | if (name[6] == 'i' && | |
9556 | name[7] == 'd') | |
9557 | { /* getgrgid */ | |
9558 | return -KEY_getgrgid; | |
9559 | } | |
9560 | ||
9561 | goto unknown; | |
9562 | ||
9563 | case 'n': | |
9564 | if (name[6] == 'a' && | |
9565 | name[7] == 'm') | |
9566 | { /* getgrnam */ | |
9567 | return -KEY_getgrnam; | |
9568 | } | |
9569 | ||
9570 | goto unknown; | |
9571 | ||
9572 | default: | |
9573 | goto unknown; | |
9574 | } | |
9575 | } | |
9576 | ||
9577 | goto unknown; | |
9578 | ||
9579 | case 'l': | |
9580 | if (name[4] == 'o' && | |
9581 | name[5] == 'g' && | |
9582 | name[6] == 'i' && | |
9583 | name[7] == 'n') | |
9584 | { /* getlogin */ | |
9585 | return -KEY_getlogin; | |
9586 | } | |
9587 | ||
9588 | goto unknown; | |
9589 | ||
9590 | case 'p': | |
9591 | if (name[4] == 'w') | |
9592 | { | |
9593 | switch (name[5]) | |
9594 | { | |
9595 | case 'e': | |
9596 | if (name[6] == 'n' && | |
9597 | name[7] == 't') | |
9598 | { /* getpwent */ | |
9599 | return -KEY_getpwent; | |
9600 | } | |
9601 | ||
9602 | goto unknown; | |
9603 | ||
9604 | case 'n': | |
9605 | if (name[6] == 'a' && | |
9606 | name[7] == 'm') | |
9607 | { /* getpwnam */ | |
9608 | return -KEY_getpwnam; | |
9609 | } | |
9610 | ||
9611 | goto unknown; | |
9612 | ||
9613 | case 'u': | |
9614 | if (name[6] == 'i' && | |
9615 | name[7] == 'd') | |
9616 | { /* getpwuid */ | |
9617 | return -KEY_getpwuid; | |
9618 | } | |
9619 | ||
9620 | goto unknown; | |
9621 | ||
9622 | default: | |
9623 | goto unknown; | |
9624 | } | |
9625 | } | |
9626 | ||
9627 | goto unknown; | |
9628 | ||
9629 | default: | |
9630 | goto unknown; | |
9631 | } | |
9632 | } | |
9633 | ||
9634 | goto unknown; | |
9635 | ||
9636 | case 'r': | |
9637 | if (name[1] == 'e' && | |
9638 | name[2] == 'a' && | |
9639 | name[3] == 'd') | |
9640 | { | |
9641 | switch (name[4]) | |
9642 | { | |
9643 | case 'l': | |
9644 | if (name[5] == 'i' && | |
9645 | name[6] == 'n') | |
9646 | { | |
9647 | switch (name[7]) | |
9648 | { | |
9649 | case 'e': | |
9650 | { /* readline */ | |
9651 | return -KEY_readline; | |
9652 | } | |
9653 | ||
4c3bbe0f MHM |
9654 | case 'k': |
9655 | { /* readlink */ | |
9656 | return -KEY_readlink; | |
9657 | } | |
9658 | ||
4c3bbe0f MHM |
9659 | default: |
9660 | goto unknown; | |
9661 | } | |
9662 | } | |
9663 | ||
9664 | goto unknown; | |
9665 | ||
9666 | case 'p': | |
9667 | if (name[5] == 'i' && | |
9668 | name[6] == 'p' && | |
9669 | name[7] == 'e') | |
9670 | { /* readpipe */ | |
9671 | return -KEY_readpipe; | |
9672 | } | |
9673 | ||
9674 | goto unknown; | |
9675 | ||
9676 | default: | |
9677 | goto unknown; | |
9678 | } | |
9679 | } | |
9680 | ||
9681 | goto unknown; | |
9682 | ||
9683 | case 's': | |
9684 | switch (name[1]) | |
9685 | { | |
9686 | case 'e': | |
9687 | if (name[2] == 't') | |
9688 | { | |
9689 | switch (name[3]) | |
9690 | { | |
9691 | case 'g': | |
9692 | if (name[4] == 'r' && | |
9693 | name[5] == 'e' && | |
9694 | name[6] == 'n' && | |
9695 | name[7] == 't') | |
9696 | { /* setgrent */ | |
9697 | return -KEY_setgrent; | |
9698 | } | |
9699 | ||
9700 | goto unknown; | |
9701 | ||
9702 | case 'p': | |
9703 | if (name[4] == 'w' && | |
9704 | name[5] == 'e' && | |
9705 | name[6] == 'n' && | |
9706 | name[7] == 't') | |
9707 | { /* setpwent */ | |
9708 | return -KEY_setpwent; | |
9709 | } | |
9710 | ||
9711 | goto unknown; | |
9712 | ||
9713 | default: | |
9714 | goto unknown; | |
9715 | } | |
9716 | } | |
9717 | ||
9718 | goto unknown; | |
9719 | ||
9720 | case 'h': | |
9721 | switch (name[2]) | |
9722 | { | |
9723 | case 'm': | |
9724 | if (name[3] == 'w' && | |
9725 | name[4] == 'r' && | |
9726 | name[5] == 'i' && | |
9727 | name[6] == 't' && | |
9728 | name[7] == 'e') | |
9729 | { /* shmwrite */ | |
9730 | return -KEY_shmwrite; | |
9731 | } | |
9732 | ||
9733 | goto unknown; | |
9734 | ||
9735 | case 'u': | |
9736 | if (name[3] == 't' && | |
9737 | name[4] == 'd' && | |
9738 | name[5] == 'o' && | |
9739 | name[6] == 'w' && | |
9740 | name[7] == 'n') | |
9741 | { /* shutdown */ | |
9742 | return -KEY_shutdown; | |
9743 | } | |
9744 | ||
9745 | goto unknown; | |
9746 | ||
9747 | default: | |
9748 | goto unknown; | |
9749 | } | |
9750 | ||
9751 | case 'y': | |
9752 | if (name[2] == 's' && | |
9753 | name[3] == 'w' && | |
9754 | name[4] == 'r' && | |
9755 | name[5] == 'i' && | |
9756 | name[6] == 't' && | |
9757 | name[7] == 'e') | |
9758 | { /* syswrite */ | |
9759 | return -KEY_syswrite; | |
9760 | } | |
9761 | ||
9762 | goto unknown; | |
9763 | ||
9764 | default: | |
9765 | goto unknown; | |
9766 | } | |
9767 | ||
9768 | case 't': | |
9769 | if (name[1] == 'r' && | |
9770 | name[2] == 'u' && | |
9771 | name[3] == 'n' && | |
9772 | name[4] == 'c' && | |
9773 | name[5] == 'a' && | |
9774 | name[6] == 't' && | |
9775 | name[7] == 'e') | |
9776 | { /* truncate */ | |
9777 | return -KEY_truncate; | |
9778 | } | |
9779 | ||
9780 | goto unknown; | |
9781 | ||
9782 | default: | |
9783 | goto unknown; | |
9784 | } | |
9785 | ||
3c10abe3 | 9786 | case 9: /* 9 tokens of length 9 */ |
4c3bbe0f MHM |
9787 | switch (name[0]) |
9788 | { | |
3c10abe3 AG |
9789 | case 'U': |
9790 | if (name[1] == 'N' && | |
9791 | name[2] == 'I' && | |
9792 | name[3] == 'T' && | |
9793 | name[4] == 'C' && | |
9794 | name[5] == 'H' && | |
9795 | name[6] == 'E' && | |
9796 | name[7] == 'C' && | |
9797 | name[8] == 'K') | |
9798 | { /* UNITCHECK */ | |
9799 | return KEY_UNITCHECK; | |
9800 | } | |
9801 | ||
9802 | goto unknown; | |
9803 | ||
4c3bbe0f MHM |
9804 | case 'e': |
9805 | if (name[1] == 'n' && | |
9806 | name[2] == 'd' && | |
9807 | name[3] == 'n' && | |
9808 | name[4] == 'e' && | |
9809 | name[5] == 't' && | |
9810 | name[6] == 'e' && | |
9811 | name[7] == 'n' && | |
9812 | name[8] == 't') | |
9813 | { /* endnetent */ | |
9814 | return -KEY_endnetent; | |
9815 | } | |
9816 | ||
9817 | goto unknown; | |
9818 | ||
9819 | case 'g': | |
9820 | if (name[1] == 'e' && | |
9821 | name[2] == 't' && | |
9822 | name[3] == 'n' && | |
9823 | name[4] == 'e' && | |
9824 | name[5] == 't' && | |
9825 | name[6] == 'e' && | |
9826 | name[7] == 'n' && | |
9827 | name[8] == 't') | |
9828 | { /* getnetent */ | |
9829 | return -KEY_getnetent; | |
9830 | } | |
9831 | ||
9832 | goto unknown; | |
9833 | ||
9834 | case 'l': | |
9835 | if (name[1] == 'o' && | |
9836 | name[2] == 'c' && | |
9837 | name[3] == 'a' && | |
9838 | name[4] == 'l' && | |
9839 | name[5] == 't' && | |
9840 | name[6] == 'i' && | |
9841 | name[7] == 'm' && | |
9842 | name[8] == 'e') | |
9843 | { /* localtime */ | |
9844 | return -KEY_localtime; | |
9845 | } | |
9846 | ||
9847 | goto unknown; | |
9848 | ||
9849 | case 'p': | |
9850 | if (name[1] == 'r' && | |
9851 | name[2] == 'o' && | |
9852 | name[3] == 't' && | |
9853 | name[4] == 'o' && | |
9854 | name[5] == 't' && | |
9855 | name[6] == 'y' && | |
9856 | name[7] == 'p' && | |
9857 | name[8] == 'e') | |
9858 | { /* prototype */ | |
9859 | return KEY_prototype; | |
9860 | } | |
9861 | ||
9862 | goto unknown; | |
9863 | ||
9864 | case 'q': | |
9865 | if (name[1] == 'u' && | |
9866 | name[2] == 'o' && | |
9867 | name[3] == 't' && | |
9868 | name[4] == 'e' && | |
9869 | name[5] == 'm' && | |
9870 | name[6] == 'e' && | |
9871 | name[7] == 't' && | |
9872 | name[8] == 'a') | |
9873 | { /* quotemeta */ | |
9874 | return -KEY_quotemeta; | |
9875 | } | |
9876 | ||
9877 | goto unknown; | |
9878 | ||
9879 | case 'r': | |
9880 | if (name[1] == 'e' && | |
9881 | name[2] == 'w' && | |
9882 | name[3] == 'i' && | |
9883 | name[4] == 'n' && | |
9884 | name[5] == 'd' && | |
9885 | name[6] == 'd' && | |
9886 | name[7] == 'i' && | |
9887 | name[8] == 'r') | |
9888 | { /* rewinddir */ | |
9889 | return -KEY_rewinddir; | |
9890 | } | |
9891 | ||
9892 | goto unknown; | |
9893 | ||
9894 | case 's': | |
9895 | if (name[1] == 'e' && | |
9896 | name[2] == 't' && | |
9897 | name[3] == 'n' && | |
9898 | name[4] == 'e' && | |
9899 | name[5] == 't' && | |
9900 | name[6] == 'e' && | |
9901 | name[7] == 'n' && | |
9902 | name[8] == 't') | |
9903 | { /* setnetent */ | |
9904 | return -KEY_setnetent; | |
9905 | } | |
9906 | ||
9907 | goto unknown; | |
9908 | ||
9909 | case 'w': | |
9910 | if (name[1] == 'a' && | |
9911 | name[2] == 'n' && | |
9912 | name[3] == 't' && | |
9913 | name[4] == 'a' && | |
9914 | name[5] == 'r' && | |
9915 | name[6] == 'r' && | |
9916 | name[7] == 'a' && | |
9917 | name[8] == 'y') | |
9918 | { /* wantarray */ | |
9919 | return -KEY_wantarray; | |
9920 | } | |
9921 | ||
9922 | goto unknown; | |
9923 | ||
9924 | default: | |
9925 | goto unknown; | |
9926 | } | |
9927 | ||
9928 | case 10: /* 9 tokens of length 10 */ | |
9929 | switch (name[0]) | |
9930 | { | |
9931 | case 'e': | |
9932 | if (name[1] == 'n' && | |
9933 | name[2] == 'd') | |
9934 | { | |
9935 | switch (name[3]) | |
9936 | { | |
9937 | case 'h': | |
9938 | if (name[4] == 'o' && | |
9939 | name[5] == 's' && | |
9940 | name[6] == 't' && | |
9941 | name[7] == 'e' && | |
9942 | name[8] == 'n' && | |
9943 | name[9] == 't') | |
9944 | { /* endhostent */ | |
9945 | return -KEY_endhostent; | |
9946 | } | |
9947 | ||
9948 | goto unknown; | |
9949 | ||
9950 | case 's': | |
9951 | if (name[4] == 'e' && | |
9952 | name[5] == 'r' && | |
9953 | name[6] == 'v' && | |
9954 | name[7] == 'e' && | |
9955 | name[8] == 'n' && | |
9956 | name[9] == 't') | |
9957 | { /* endservent */ | |
9958 | return -KEY_endservent; | |
9959 | } | |
9960 | ||
9961 | goto unknown; | |
9962 | ||
9963 | default: | |
9964 | goto unknown; | |
9965 | } | |
9966 | } | |
9967 | ||
9968 | goto unknown; | |
9969 | ||
9970 | case 'g': | |
9971 | if (name[1] == 'e' && | |
9972 | name[2] == 't') | |
9973 | { | |
9974 | switch (name[3]) | |
9975 | { | |
9976 | case 'h': | |
9977 | if (name[4] == 'o' && | |
9978 | name[5] == 's' && | |
9979 | name[6] == 't' && | |
9980 | name[7] == 'e' && | |
9981 | name[8] == 'n' && | |
9982 | name[9] == 't') | |
9983 | { /* gethostent */ | |
9984 | return -KEY_gethostent; | |
9985 | } | |
9986 | ||
9987 | goto unknown; | |
9988 | ||
9989 | case 's': | |
9990 | switch (name[4]) | |
9991 | { | |
9992 | case 'e': | |
9993 | if (name[5] == 'r' && | |
9994 | name[6] == 'v' && | |
9995 | name[7] == 'e' && | |
9996 | name[8] == 'n' && | |
9997 | name[9] == 't') | |
9998 | { /* getservent */ | |
9999 | return -KEY_getservent; | |
10000 | } | |
10001 | ||
10002 | goto unknown; | |
10003 | ||
10004 | case 'o': | |
10005 | if (name[5] == 'c' && | |
10006 | name[6] == 'k' && | |
10007 | name[7] == 'o' && | |
10008 | name[8] == 'p' && | |
10009 | name[9] == 't') | |
10010 | { /* getsockopt */ | |
10011 | return -KEY_getsockopt; | |
10012 | } | |
10013 | ||
10014 | goto unknown; | |
10015 | ||
10016 | default: | |
10017 | goto unknown; | |
10018 | } | |
10019 | ||
10020 | default: | |
10021 | goto unknown; | |
10022 | } | |
10023 | } | |
10024 | ||
10025 | goto unknown; | |
10026 | ||
10027 | case 's': | |
10028 | switch (name[1]) | |
10029 | { | |
10030 | case 'e': | |
10031 | if (name[2] == 't') | |
10032 | { | |
10033 | switch (name[3]) | |
10034 | { | |
10035 | case 'h': | |
10036 | if (name[4] == 'o' && | |
10037 | name[5] == 's' && | |
10038 | name[6] == 't' && | |
10039 | name[7] == 'e' && | |
10040 | name[8] == 'n' && | |
10041 | name[9] == 't') | |
10042 | { /* sethostent */ | |
10043 | return -KEY_sethostent; | |
10044 | } | |
10045 | ||
10046 | goto unknown; | |
10047 | ||
10048 | case 's': | |
10049 | switch (name[4]) | |
10050 | { | |
10051 | case 'e': | |
10052 | if (name[5] == 'r' && | |
10053 | name[6] == 'v' && | |
10054 | name[7] == 'e' && | |
10055 | name[8] == 'n' && | |
10056 | name[9] == 't') | |
10057 | { /* setservent */ | |
10058 | return -KEY_setservent; | |
10059 | } | |
10060 | ||
10061 | goto unknown; | |
10062 | ||
10063 | case 'o': | |
10064 | if (name[5] == 'c' && | |
10065 | name[6] == 'k' && | |
10066 | name[7] == 'o' && | |
10067 | name[8] == 'p' && | |
10068 | name[9] == 't') | |
10069 | { /* setsockopt */ | |
10070 | return -KEY_setsockopt; | |
10071 | } | |
10072 | ||
10073 | goto unknown; | |
10074 | ||
10075 | default: | |
10076 | goto unknown; | |
10077 | } | |
10078 | ||
10079 | default: | |
10080 | goto unknown; | |
10081 | } | |
10082 | } | |
10083 | ||
10084 | goto unknown; | |
10085 | ||
10086 | case 'o': | |
10087 | if (name[2] == 'c' && | |
10088 | name[3] == 'k' && | |
10089 | name[4] == 'e' && | |
10090 | name[5] == 't' && | |
10091 | name[6] == 'p' && | |
10092 | name[7] == 'a' && | |
10093 | name[8] == 'i' && | |
10094 | name[9] == 'r') | |
10095 | { /* socketpair */ | |
10096 | return -KEY_socketpair; | |
10097 | } | |
10098 | ||
10099 | goto unknown; | |
10100 | ||
10101 | default: | |
10102 | goto unknown; | |
10103 | } | |
10104 | ||
10105 | default: | |
10106 | goto unknown; | |
e2e1dd5a | 10107 | } |
4c3bbe0f MHM |
10108 | |
10109 | case 11: /* 8 tokens of length 11 */ | |
10110 | switch (name[0]) | |
10111 | { | |
10112 | case '_': | |
10113 | if (name[1] == '_' && | |
10114 | name[2] == 'P' && | |
10115 | name[3] == 'A' && | |
10116 | name[4] == 'C' && | |
10117 | name[5] == 'K' && | |
10118 | name[6] == 'A' && | |
10119 | name[7] == 'G' && | |
10120 | name[8] == 'E' && | |
10121 | name[9] == '_' && | |
10122 | name[10] == '_') | |
10123 | { /* __PACKAGE__ */ | |
10124 | return -KEY___PACKAGE__; | |
10125 | } | |
10126 | ||
10127 | goto unknown; | |
10128 | ||
10129 | case 'e': | |
10130 | if (name[1] == 'n' && | |
10131 | name[2] == 'd' && | |
10132 | name[3] == 'p' && | |
10133 | name[4] == 'r' && | |
10134 | name[5] == 'o' && | |
10135 | name[6] == 't' && | |
10136 | name[7] == 'o' && | |
10137 | name[8] == 'e' && | |
10138 | name[9] == 'n' && | |
10139 | name[10] == 't') | |
10140 | { /* endprotoent */ | |
10141 | return -KEY_endprotoent; | |
10142 | } | |
10143 | ||
10144 | goto unknown; | |
10145 | ||
10146 | case 'g': | |
10147 | if (name[1] == 'e' && | |
10148 | name[2] == 't') | |
10149 | { | |
10150 | switch (name[3]) | |
10151 | { | |
10152 | case 'p': | |
10153 | switch (name[4]) | |
10154 | { | |
10155 | case 'e': | |
10156 | if (name[5] == 'e' && | |
10157 | name[6] == 'r' && | |
10158 | name[7] == 'n' && | |
10159 | name[8] == 'a' && | |
10160 | name[9] == 'm' && | |
10161 | name[10] == 'e') | |
10162 | { /* getpeername */ | |
10163 | return -KEY_getpeername; | |
10164 | } | |
10165 | ||
10166 | goto unknown; | |
10167 | ||
10168 | case 'r': | |
10169 | switch (name[5]) | |
10170 | { | |
10171 | case 'i': | |
10172 | if (name[6] == 'o' && | |
10173 | name[7] == 'r' && | |
10174 | name[8] == 'i' && | |
10175 | name[9] == 't' && | |
10176 | name[10] == 'y') | |
10177 | { /* getpriority */ | |
10178 | return -KEY_getpriority; | |
10179 | } | |
10180 | ||
10181 | goto unknown; | |
10182 | ||
10183 | case 'o': | |
10184 | if (name[6] == 't' && | |
10185 | name[7] == 'o' && | |
10186 | name[8] == 'e' && | |
10187 | name[9] == 'n' && | |
10188 | name[10] == 't') | |
10189 | { /* getprotoent */ | |
10190 | return -KEY_getprotoent; | |
10191 | } | |
10192 | ||
10193 | goto unknown; | |
10194 | ||
10195 | default: | |
10196 | goto unknown; | |
10197 | } | |
10198 | ||
10199 | default: | |
10200 | goto unknown; | |
10201 | } | |
10202 | ||
10203 | case 's': | |
10204 | if (name[4] == 'o' && | |
10205 | name[5] == 'c' && | |
10206 | name[6] == 'k' && | |
10207 | name[7] == 'n' && | |
10208 | name[8] == 'a' && | |
10209 | name[9] == 'm' && | |
10210 | name[10] == 'e') | |
10211 | { /* getsockname */ | |
10212 | return -KEY_getsockname; | |
10213 | } | |
10214 | ||
10215 | goto unknown; | |
10216 | ||
10217 | default: | |
10218 | goto unknown; | |
10219 | } | |
10220 | } | |
10221 | ||
10222 | goto unknown; | |
10223 | ||
10224 | case 's': | |
10225 | if (name[1] == 'e' && | |
10226 | name[2] == 't' && | |
10227 | name[3] == 'p' && | |
10228 | name[4] == 'r') | |
10229 | { | |
10230 | switch (name[5]) | |
10231 | { | |
10232 | case 'i': | |
10233 | if (name[6] == 'o' && | |
10234 | name[7] == 'r' && | |
10235 | name[8] == 'i' && | |
10236 | name[9] == 't' && | |
10237 | name[10] == 'y') | |
10238 | { /* setpriority */ | |
10239 | return -KEY_setpriority; | |
10240 | } | |
10241 | ||
10242 | goto unknown; | |
10243 | ||
10244 | case 'o': | |
10245 | if (name[6] == 't' && | |
10246 | name[7] == 'o' && | |
10247 | name[8] == 'e' && | |
10248 | name[9] == 'n' && | |
10249 | name[10] == 't') | |
10250 | { /* setprotoent */ | |
10251 | return -KEY_setprotoent; | |
10252 | } | |
10253 | ||
10254 | goto unknown; | |
10255 | ||
10256 | default: | |
10257 | goto unknown; | |
10258 | } | |
10259 | } | |
10260 | ||
10261 | goto unknown; | |
10262 | ||
10263 | default: | |
10264 | goto unknown; | |
e2e1dd5a | 10265 | } |
4c3bbe0f MHM |
10266 | |
10267 | case 12: /* 2 tokens of length 12 */ | |
10268 | if (name[0] == 'g' && | |
10269 | name[1] == 'e' && | |
10270 | name[2] == 't' && | |
10271 | name[3] == 'n' && | |
10272 | name[4] == 'e' && | |
10273 | name[5] == 't' && | |
10274 | name[6] == 'b' && | |
10275 | name[7] == 'y') | |
10276 | { | |
10277 | switch (name[8]) | |
10278 | { | |
10279 | case 'a': | |
10280 | if (name[9] == 'd' && | |
10281 | name[10] == 'd' && | |
10282 | name[11] == 'r') | |
10283 | { /* getnetbyaddr */ | |
10284 | return -KEY_getnetbyaddr; | |
10285 | } | |
10286 | ||
10287 | goto unknown; | |
10288 | ||
10289 | case 'n': | |
10290 | if (name[9] == 'a' && | |
10291 | name[10] == 'm' && | |
10292 | name[11] == 'e') | |
10293 | { /* getnetbyname */ | |
10294 | return -KEY_getnetbyname; | |
10295 | } | |
10296 | ||
10297 | goto unknown; | |
10298 | ||
10299 | default: | |
10300 | goto unknown; | |
10301 | } | |
e2e1dd5a | 10302 | } |
4c3bbe0f MHM |
10303 | |
10304 | goto unknown; | |
10305 | ||
10306 | case 13: /* 4 tokens of length 13 */ | |
10307 | if (name[0] == 'g' && | |
10308 | name[1] == 'e' && | |
10309 | name[2] == 't') | |
10310 | { | |
10311 | switch (name[3]) | |
10312 | { | |
10313 | case 'h': | |
10314 | if (name[4] == 'o' && | |
10315 | name[5] == 's' && | |
10316 | name[6] == 't' && | |
10317 | name[7] == 'b' && | |
10318 | name[8] == 'y') | |
10319 | { | |
10320 | switch (name[9]) | |
10321 | { | |
10322 | case 'a': | |
10323 | if (name[10] == 'd' && | |
10324 | name[11] == 'd' && | |
10325 | name[12] == 'r') | |
10326 | { /* gethostbyaddr */ | |
10327 | return -KEY_gethostbyaddr; | |
10328 | } | |
10329 | ||
10330 | goto unknown; | |
10331 | ||
10332 | case 'n': | |
10333 | if (name[10] == 'a' && | |
10334 | name[11] == 'm' && | |
10335 | name[12] == 'e') | |
10336 | { /* gethostbyname */ | |
10337 | return -KEY_gethostbyname; | |
10338 | } | |
10339 | ||
10340 | goto unknown; | |
10341 | ||
10342 | default: | |
10343 | goto unknown; | |
10344 | } | |
10345 | } | |
10346 | ||
10347 | goto unknown; | |
10348 | ||
10349 | case 's': | |
10350 | if (name[4] == 'e' && | |
10351 | name[5] == 'r' && | |
10352 | name[6] == 'v' && | |
10353 | name[7] == 'b' && | |
10354 | name[8] == 'y') | |
10355 | { | |
10356 | switch (name[9]) | |
10357 | { | |
10358 | case 'n': | |
10359 | if (name[10] == 'a' && | |
10360 | name[11] == 'm' && | |
10361 | name[12] == 'e') | |
10362 | { /* getservbyname */ | |
10363 | return -KEY_getservbyname; | |
10364 | } | |
10365 | ||
10366 | goto unknown; | |
10367 | ||
10368 | case 'p': | |
10369 | if (name[10] == 'o' && | |
10370 | name[11] == 'r' && | |
10371 | name[12] == 't') | |
10372 | { /* getservbyport */ | |
10373 | return -KEY_getservbyport; | |
10374 | } | |
10375 | ||
10376 | goto unknown; | |
10377 | ||
10378 | default: | |
10379 | goto unknown; | |
10380 | } | |
10381 | } | |
10382 | ||
10383 | goto unknown; | |
10384 | ||
10385 | default: | |
10386 | goto unknown; | |
10387 | } | |
e2e1dd5a | 10388 | } |
4c3bbe0f MHM |
10389 | |
10390 | goto unknown; | |
10391 | ||
10392 | case 14: /* 1 tokens of length 14 */ | |
10393 | if (name[0] == 'g' && | |
10394 | name[1] == 'e' && | |
10395 | name[2] == 't' && | |
10396 | name[3] == 'p' && | |
10397 | name[4] == 'r' && | |
10398 | name[5] == 'o' && | |
10399 | name[6] == 't' && | |
10400 | name[7] == 'o' && | |
10401 | name[8] == 'b' && | |
10402 | name[9] == 'y' && | |
10403 | name[10] == 'n' && | |
10404 | name[11] == 'a' && | |
10405 | name[12] == 'm' && | |
10406 | name[13] == 'e') | |
10407 | { /* getprotobyname */ | |
10408 | return -KEY_getprotobyname; | |
10409 | } | |
10410 | ||
10411 | goto unknown; | |
10412 | ||
10413 | case 16: /* 1 tokens of length 16 */ | |
10414 | if (name[0] == 'g' && | |
10415 | name[1] == 'e' && | |
10416 | name[2] == 't' && | |
10417 | name[3] == 'p' && | |
10418 | name[4] == 'r' && | |
10419 | name[5] == 'o' && | |
10420 | name[6] == 't' && | |
10421 | name[7] == 'o' && | |
10422 | name[8] == 'b' && | |
10423 | name[9] == 'y' && | |
10424 | name[10] == 'n' && | |
10425 | name[11] == 'u' && | |
10426 | name[12] == 'm' && | |
10427 | name[13] == 'b' && | |
10428 | name[14] == 'e' && | |
10429 | name[15] == 'r') | |
10430 | { /* getprotobynumber */ | |
10431 | return -KEY_getprotobynumber; | |
10432 | } | |
10433 | ||
10434 | goto unknown; | |
10435 | ||
10436 | default: | |
10437 | goto unknown; | |
e2e1dd5a | 10438 | } |
4c3bbe0f MHM |
10439 | |
10440 | unknown: | |
e2e1dd5a | 10441 | return 0; |
a687059c LW |
10442 | } |
10443 | ||
76e3520e | 10444 | STATIC void |
c94115d8 | 10445 | S_checkcomma(pTHX_ const char *s, const char *name, const char *what) |
a687059c | 10446 | { |
97aff369 | 10447 | dVAR; |
2f3197b3 | 10448 | |
d008e5eb | 10449 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
10450 | if (ckWARN(WARN_SYNTAX)) { |
10451 | int level = 1; | |
26ff0806 | 10452 | const char *w; |
d008e5eb GS |
10453 | for (w = s+2; *w && level; w++) { |
10454 | if (*w == '(') | |
10455 | ++level; | |
10456 | else if (*w == ')') | |
10457 | --level; | |
10458 | } | |
888fea98 NC |
10459 | while (isSPACE(*w)) |
10460 | ++w; | |
b1439985 RGS |
10461 | /* the list of chars below is for end of statements or |
10462 | * block / parens, boolean operators (&&, ||, //) and branch | |
10463 | * constructs (or, and, if, until, unless, while, err, for). | |
10464 | * Not a very solid hack... */ | |
10465 | if (!*w || !strchr(";&/|})]oaiuwef!=", *w)) | |
9014280d | 10466 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 10467 | "%s (...) interpreted as function",name); |
d008e5eb | 10468 | } |
2f3197b3 | 10469 | } |
3280af22 | 10470 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 10471 | s++; |
a687059c LW |
10472 | if (*s == '(') |
10473 | s++; | |
3280af22 | 10474 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10475 | s++; |
7e2040f0 | 10476 | if (isIDFIRST_lazy_if(s,UTF)) { |
26ff0806 | 10477 | const char * const w = s++; |
7e2040f0 | 10478 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 10479 | s++; |
3280af22 | 10480 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10481 | s++; |
e929a76b | 10482 | if (*s == ',') { |
c94115d8 | 10483 | GV* gv; |
5458a98a | 10484 | if (keyword(w, s - w, 0)) |
e929a76b | 10485 | return; |
c94115d8 NC |
10486 | |
10487 | gv = gv_fetchpvn_flags(w, s - w, 0, SVt_PVCV); | |
10488 | if (gv && GvCVu(gv)) | |
abbb3198 | 10489 | return; |
cea2e8a9 | 10490 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
10491 | } |
10492 | } | |
10493 | } | |
10494 | ||
423cee85 JH |
10495 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
10496 | Best used as sv=new_constant(..., sv, ...). | |
10497 | If s, pv are NULL, calls subroutine with one argument, | |
10498 | and type is used with error messages only. */ | |
10499 | ||
b3ac6de7 | 10500 | STATIC SV * |
7fc63493 | 10501 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, SV *sv, SV *pv, |
9b0e499b | 10502 | const char *type) |
b3ac6de7 | 10503 | { |
27da23d5 | 10504 | dVAR; dSP; |
890ce7af | 10505 | HV * const table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 10506 | SV *res; |
b3ac6de7 IZ |
10507 | SV **cvp; |
10508 | SV *cv, *typesv; | |
89e33a05 | 10509 | const char *why1 = "", *why2 = "", *why3 = ""; |
4e553d73 | 10510 | |
f0af216f | 10511 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
10512 | SV *msg; |
10513 | ||
10edeb5d JH |
10514 | why2 = (const char *) |
10515 | (strEQ(key,"charnames") | |
10516 | ? "(possibly a missing \"use charnames ...\")" | |
10517 | : ""); | |
4e553d73 | 10518 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
10519 | (type ? type: "undef"), why2); |
10520 | ||
10521 | /* This is convoluted and evil ("goto considered harmful") | |
10522 | * but I do not understand the intricacies of all the different | |
10523 | * failure modes of %^H in here. The goal here is to make | |
10524 | * the most probable error message user-friendly. --jhi */ | |
10525 | ||
10526 | goto msgdone; | |
10527 | ||
423cee85 | 10528 | report: |
4e553d73 | 10529 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 10530 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 10531 | msgdone: |
95a20fc0 | 10532 | yyerror(SvPVX_const(msg)); |
423cee85 JH |
10533 | SvREFCNT_dec(msg); |
10534 | return sv; | |
10535 | } | |
b3ac6de7 IZ |
10536 | cvp = hv_fetch(table, key, strlen(key), FALSE); |
10537 | if (!cvp || !SvOK(*cvp)) { | |
423cee85 JH |
10538 | why1 = "$^H{"; |
10539 | why2 = key; | |
f0af216f | 10540 | why3 = "} is not defined"; |
423cee85 | 10541 | goto report; |
b3ac6de7 IZ |
10542 | } |
10543 | sv_2mortal(sv); /* Parent created it permanently */ | |
10544 | cv = *cvp; | |
423cee85 JH |
10545 | if (!pv && s) |
10546 | pv = sv_2mortal(newSVpvn(s, len)); | |
10547 | if (type && pv) | |
10548 | typesv = sv_2mortal(newSVpv(type, 0)); | |
b3ac6de7 | 10549 | else |
423cee85 | 10550 | typesv = &PL_sv_undef; |
4e553d73 | 10551 | |
e788e7d3 | 10552 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
10553 | ENTER ; |
10554 | SAVETMPS; | |
4e553d73 | 10555 | |
423cee85 | 10556 | PUSHMARK(SP) ; |
a5845cb7 | 10557 | EXTEND(sp, 3); |
423cee85 JH |
10558 | if (pv) |
10559 | PUSHs(pv); | |
b3ac6de7 | 10560 | PUSHs(sv); |
423cee85 JH |
10561 | if (pv) |
10562 | PUSHs(typesv); | |
b3ac6de7 | 10563 | PUTBACK; |
423cee85 | 10564 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 10565 | |
423cee85 | 10566 | SPAGAIN ; |
4e553d73 | 10567 | |
423cee85 | 10568 | /* Check the eval first */ |
9b0e499b | 10569 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
396482e1 | 10570 | sv_catpvs(ERRSV, "Propagated"); |
8b6b16e7 | 10571 | yyerror(SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */ |
e1f15930 | 10572 | (void)POPs; |
b37c2d43 | 10573 | res = SvREFCNT_inc_simple(sv); |
423cee85 JH |
10574 | } |
10575 | else { | |
10576 | res = POPs; | |
b37c2d43 | 10577 | SvREFCNT_inc_simple_void(res); |
423cee85 | 10578 | } |
4e553d73 | 10579 | |
423cee85 JH |
10580 | PUTBACK ; |
10581 | FREETMPS ; | |
10582 | LEAVE ; | |
b3ac6de7 | 10583 | POPSTACK; |
4e553d73 | 10584 | |
b3ac6de7 | 10585 | if (!SvOK(res)) { |
423cee85 JH |
10586 | why1 = "Call to &{$^H{"; |
10587 | why2 = key; | |
f0af216f | 10588 | why3 = "}} did not return a defined value"; |
423cee85 JH |
10589 | sv = res; |
10590 | goto report; | |
9b0e499b | 10591 | } |
423cee85 | 10592 | |
9b0e499b | 10593 | return res; |
b3ac6de7 | 10594 | } |
4e553d73 | 10595 | |
d0a148a6 NC |
10596 | /* Returns a NUL terminated string, with the length of the string written to |
10597 | *slp | |
10598 | */ | |
76e3520e | 10599 | STATIC char * |
cea2e8a9 | 10600 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 | 10601 | { |
97aff369 | 10602 | dVAR; |
463ee0b2 | 10603 | register char *d = dest; |
890ce7af | 10604 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
463ee0b2 | 10605 | for (;;) { |
8903cb82 | 10606 | if (d >= e) |
cea2e8a9 | 10607 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10608 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10609 | *d++ = *s++; |
c35e046a | 10610 | else if (allow_package && (*s == '\'') && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10611 | *d++ = ':'; |
10612 | *d++ = ':'; | |
10613 | s++; | |
10614 | } | |
c35e046a | 10615 | else if (allow_package && (s[0] == ':') && (s[1] == ':') && (s[2] != '$')) { |
463ee0b2 LW |
10616 | *d++ = *s++; |
10617 | *d++ = *s++; | |
10618 | } | |
fd400ab9 | 10619 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10620 | char *t = s + UTF8SKIP(s); |
c35e046a | 10621 | size_t len; |
fd400ab9 | 10622 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 | 10623 | t += UTF8SKIP(t); |
c35e046a AL |
10624 | len = t - s; |
10625 | if (d + len > e) | |
cea2e8a9 | 10626 | Perl_croak(aTHX_ ident_too_long); |
c35e046a AL |
10627 | Copy(s, d, len, char); |
10628 | d += len; | |
a0ed51b3 LW |
10629 | s = t; |
10630 | } | |
463ee0b2 LW |
10631 | else { |
10632 | *d = '\0'; | |
10633 | *slp = d - dest; | |
10634 | return s; | |
e929a76b | 10635 | } |
378cc40b LW |
10636 | } |
10637 | } | |
10638 | ||
76e3520e | 10639 | STATIC char * |
f54cb97a | 10640 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b | 10641 | { |
97aff369 | 10642 | dVAR; |
6136c704 | 10643 | char *bracket = NULL; |
748a9306 | 10644 | char funny = *s++; |
6136c704 AL |
10645 | register char *d = dest; |
10646 | register char * const e = d + destlen + 3; /* two-character token, ending NUL */ | |
378cc40b | 10647 | |
a0d0e21e | 10648 | if (isSPACE(*s)) |
29595ff2 | 10649 | s = PEEKSPACE(s); |
de3bb511 | 10650 | if (isDIGIT(*s)) { |
8903cb82 | 10651 | while (isDIGIT(*s)) { |
10652 | if (d >= e) | |
cea2e8a9 | 10653 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 10654 | *d++ = *s++; |
8903cb82 | 10655 | } |
378cc40b LW |
10656 | } |
10657 | else { | |
463ee0b2 | 10658 | for (;;) { |
8903cb82 | 10659 | if (d >= e) |
cea2e8a9 | 10660 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10661 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10662 | *d++ = *s++; |
7e2040f0 | 10663 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10664 | *d++ = ':'; |
10665 | *d++ = ':'; | |
10666 | s++; | |
10667 | } | |
a0d0e21e | 10668 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
10669 | *d++ = *s++; |
10670 | *d++ = *s++; | |
10671 | } | |
fd400ab9 | 10672 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10673 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 10674 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
10675 | t += UTF8SKIP(t); |
10676 | if (d + (t - s) > e) | |
cea2e8a9 | 10677 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
10678 | Copy(s, d, t - s, char); |
10679 | d += t - s; | |
10680 | s = t; | |
10681 | } | |
463ee0b2 LW |
10682 | else |
10683 | break; | |
10684 | } | |
378cc40b LW |
10685 | } |
10686 | *d = '\0'; | |
10687 | d = dest; | |
79072805 | 10688 | if (*d) { |
3280af22 NIS |
10689 | if (PL_lex_state != LEX_NORMAL) |
10690 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 10691 | return s; |
378cc40b | 10692 | } |
748a9306 | 10693 | if (*s == '$' && s[1] && |
3792a11b | 10694 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 10695 | { |
4810e5ec | 10696 | return s; |
5cd24f17 | 10697 | } |
79072805 LW |
10698 | if (*s == '{') { |
10699 | bracket = s; | |
10700 | s++; | |
10701 | } | |
10702 | else if (ck_uni) | |
10703 | check_uni(); | |
93a17b20 | 10704 | if (s < send) |
79072805 LW |
10705 | *d = *s++; |
10706 | d[1] = '\0'; | |
2b92dfce | 10707 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 10708 | *d = toCTRL(*s); |
10709 | s++; | |
de3bb511 | 10710 | } |
79072805 | 10711 | if (bracket) { |
748a9306 | 10712 | if (isSPACE(s[-1])) { |
fa83b5b6 | 10713 | while (s < send) { |
f54cb97a | 10714 | const char ch = *s++; |
bf4acbe4 | 10715 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 10716 | *d = ch; |
10717 | break; | |
10718 | } | |
10719 | } | |
748a9306 | 10720 | } |
7e2040f0 | 10721 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 10722 | d++; |
a0ed51b3 | 10723 | if (UTF) { |
6136c704 AL |
10724 | char *end = s; |
10725 | while ((end < send && isALNUM_lazy_if(end,UTF)) || *end == ':') { | |
10726 | end += UTF8SKIP(end); | |
10727 | while (end < send && UTF8_IS_CONTINUED(*end) && is_utf8_mark((U8*)end)) | |
10728 | end += UTF8SKIP(end); | |
a0ed51b3 | 10729 | } |
6136c704 AL |
10730 | Copy(s, d, end - s, char); |
10731 | d += end - s; | |
10732 | s = end; | |
a0ed51b3 LW |
10733 | } |
10734 | else { | |
2b92dfce | 10735 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 10736 | *d++ = *s++; |
2b92dfce | 10737 | if (d >= e) |
cea2e8a9 | 10738 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 10739 | } |
79072805 | 10740 | *d = '\0'; |
c35e046a AL |
10741 | while (s < send && SPACE_OR_TAB(*s)) |
10742 | s++; | |
ff68c719 | 10743 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
5458a98a | 10744 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest, 0)) { |
10edeb5d JH |
10745 | const char * const brack = |
10746 | (const char *) | |
10747 | ((*s == '[') ? "[...]" : "{...}"); | |
9014280d | 10748 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 10749 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
10750 | funny, dest, brack, funny, dest, brack); |
10751 | } | |
79072805 | 10752 | bracket++; |
a0be28da | 10753 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
10754 | return s; |
10755 | } | |
4e553d73 NIS |
10756 | } |
10757 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
10758 | * 1999-02-27 mjd-perl-patch@plover.com */ |
10759 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
10760 | && isALNUM(*s)) | |
10761 | { | |
10762 | d++; | |
10763 | while (isALNUM(*s) && d < e) { | |
10764 | *d++ = *s++; | |
10765 | } | |
10766 | if (d >= e) | |
cea2e8a9 | 10767 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 10768 | *d = '\0'; |
79072805 LW |
10769 | } |
10770 | if (*s == '}') { | |
10771 | s++; | |
7df0d042 | 10772 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 10773 | PL_lex_state = LEX_INTERPEND; |
7df0d042 AE |
10774 | PL_expect = XREF; |
10775 | } | |
d008e5eb | 10776 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 10777 | if (ckWARN(WARN_AMBIGUOUS) && |
780a5241 NC |
10778 | (keyword(dest, d - dest, 0) |
10779 | || get_cvn_flags(dest, d - dest, 0))) | |
d008e5eb | 10780 | { |
c35e046a AL |
10781 | if (funny == '#') |
10782 | funny = '@'; | |
9014280d | 10783 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
10784 | "Ambiguous use of %c{%s} resolved to %c%s", |
10785 | funny, dest, funny, dest); | |
10786 | } | |
10787 | } | |
79072805 LW |
10788 | } |
10789 | else { | |
10790 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 10791 | *dest = '\0'; |
79072805 LW |
10792 | } |
10793 | } | |
3280af22 NIS |
10794 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
10795 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
10796 | return s; |
10797 | } | |
10798 | ||
cea2e8a9 | 10799 | void |
2b36a5a0 | 10800 | Perl_pmflag(pTHX_ U32* pmfl, int ch) |
a0d0e21e | 10801 | { |
96a5add6 | 10802 | PERL_UNUSED_CONTEXT; |
cde0cee5 YO |
10803 | if (ch<256) { |
10804 | char c = (char)ch; | |
10805 | switch (c) { | |
10806 | CASE_STD_PMMOD_FLAGS_PARSE_SET(pmfl); | |
a20207d7 YO |
10807 | case GLOBAL_PAT_MOD: *pmfl |= PMf_GLOBAL; break; |
10808 | case CONTINUE_PAT_MOD: *pmfl |= PMf_CONTINUE; break; | |
10809 | case ONCE_PAT_MOD: *pmfl |= PMf_KEEP; break; | |
10810 | case KEEPCOPY_PAT_MOD: *pmfl |= PMf_KEEPCOPY; break; | |
cde0cee5 YO |
10811 | } |
10812 | } | |
a0d0e21e | 10813 | } |
378cc40b | 10814 | |
76e3520e | 10815 | STATIC char * |
cea2e8a9 | 10816 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 10817 | { |
97aff369 | 10818 | dVAR; |
79072805 | 10819 | PMOP *pm; |
5db06880 | 10820 | char *s = scan_str(start,!!PL_madskills,FALSE); |
10edeb5d | 10821 | const char * const valid_flags = |
a20207d7 | 10822 | (const char *)((type == OP_QR) ? QR_PAT_MODS : M_PAT_MODS); |
5db06880 NC |
10823 | #ifdef PERL_MAD |
10824 | char *modstart; | |
10825 | #endif | |
10826 | ||
378cc40b | 10827 | |
25c09cbf | 10828 | if (!s) { |
6136c704 | 10829 | const char * const delimiter = skipspace(start); |
10edeb5d JH |
10830 | Perl_croak(aTHX_ |
10831 | (const char *) | |
10832 | (*delimiter == '?' | |
10833 | ? "Search pattern not terminated or ternary operator parsed as search pattern" | |
10834 | : "Search pattern not terminated" )); | |
25c09cbf | 10835 | } |
bbce6d69 | 10836 | |
8782bef2 | 10837 | pm = (PMOP*)newPMOP(type, 0); |
ad639bfb NC |
10838 | if (PL_multi_open == '?') { |
10839 | /* This is the only point in the code that sets PMf_ONCE: */ | |
79072805 | 10840 | pm->op_pmflags |= PMf_ONCE; |
ad639bfb NC |
10841 | |
10842 | /* Hence it's safe to do this bit of PMOP book-keeping here, which | |
10843 | allows us to restrict the list needed by reset to just the ?? | |
10844 | matches. */ | |
10845 | assert(type != OP_TRANS); | |
10846 | if (PL_curstash) { | |
10847 | MAGIC *mg = mg_find((SV*)PL_curstash, PERL_MAGIC_symtab); | |
10848 | U32 elements; | |
10849 | if (!mg) { | |
10850 | mg = sv_magicext((SV*)PL_curstash, 0, PERL_MAGIC_symtab, 0, 0, | |
10851 | 0); | |
10852 | } | |
10853 | elements = mg->mg_len / sizeof(PMOP**); | |
10854 | Renewc(mg->mg_ptr, elements + 1, PMOP*, char); | |
10855 | ((PMOP**)mg->mg_ptr) [elements++] = pm; | |
10856 | mg->mg_len = elements * sizeof(PMOP**); | |
10857 | PmopSTASH_set(pm,PL_curstash); | |
10858 | } | |
10859 | } | |
5db06880 NC |
10860 | #ifdef PERL_MAD |
10861 | modstart = s; | |
10862 | #endif | |
6136c704 AL |
10863 | while (*s && strchr(valid_flags, *s)) |
10864 | pmflag(&pm->op_pmflags,*s++); | |
5db06880 NC |
10865 | #ifdef PERL_MAD |
10866 | if (PL_madskills && modstart != s) { | |
10867 | SV* tmptoken = newSVpvn(modstart, s - modstart); | |
10868 | append_madprops(newMADPROP('m', MAD_SV, tmptoken, 0), (OP*)pm, 0); | |
10869 | } | |
10870 | #endif | |
4ac733c9 | 10871 | /* issue a warning if /c is specified,but /g is not */ |
041457d9 DM |
10872 | if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL) |
10873 | && ckWARN(WARN_REGEXP)) | |
4ac733c9 | 10874 | { |
a20207d7 YO |
10875 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), |
10876 | "Use of /c modifier is meaningless without /g" ); | |
4ac733c9 MJD |
10877 | } |
10878 | ||
3280af22 | 10879 | PL_lex_op = (OP*)pm; |
79072805 | 10880 | yylval.ival = OP_MATCH; |
378cc40b LW |
10881 | return s; |
10882 | } | |
10883 | ||
76e3520e | 10884 | STATIC char * |
cea2e8a9 | 10885 | S_scan_subst(pTHX_ char *start) |
79072805 | 10886 | { |
27da23d5 | 10887 | dVAR; |
a0d0e21e | 10888 | register char *s; |
79072805 | 10889 | register PMOP *pm; |
4fdae800 | 10890 | I32 first_start; |
79072805 | 10891 | I32 es = 0; |
5db06880 NC |
10892 | #ifdef PERL_MAD |
10893 | char *modstart; | |
10894 | #endif | |
79072805 | 10895 | |
79072805 LW |
10896 | yylval.ival = OP_NULL; |
10897 | ||
5db06880 | 10898 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 10899 | |
37fd879b | 10900 | if (!s) |
cea2e8a9 | 10901 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 10902 | |
3280af22 | 10903 | if (s[-1] == PL_multi_open) |
79072805 | 10904 | s--; |
5db06880 NC |
10905 | #ifdef PERL_MAD |
10906 | if (PL_madskills) { | |
cd81e915 NC |
10907 | CURMAD('q', PL_thisopen); |
10908 | CURMAD('_', PL_thiswhite); | |
10909 | CURMAD('E', PL_thisstuff); | |
10910 | CURMAD('Q', PL_thisclose); | |
10911 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
10912 | } |
10913 | #endif | |
79072805 | 10914 | |
3280af22 | 10915 | first_start = PL_multi_start; |
5db06880 | 10916 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 10917 | if (!s) { |
37fd879b | 10918 | if (PL_lex_stuff) { |
3280af22 | 10919 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 10920 | PL_lex_stuff = NULL; |
37fd879b | 10921 | } |
cea2e8a9 | 10922 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 10923 | } |
3280af22 | 10924 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 10925 | |
79072805 | 10926 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
5db06880 NC |
10927 | |
10928 | #ifdef PERL_MAD | |
10929 | if (PL_madskills) { | |
cd81e915 NC |
10930 | CURMAD('z', PL_thisopen); |
10931 | CURMAD('R', PL_thisstuff); | |
10932 | CURMAD('Z', PL_thisclose); | |
5db06880 NC |
10933 | } |
10934 | modstart = s; | |
10935 | #endif | |
10936 | ||
48c036b1 | 10937 | while (*s) { |
a20207d7 | 10938 | if (*s == EXEC_PAT_MOD) { |
a687059c | 10939 | s++; |
2f3197b3 | 10940 | es++; |
a687059c | 10941 | } |
a20207d7 | 10942 | else if (strchr(S_PAT_MODS, *s)) |
a0d0e21e | 10943 | pmflag(&pm->op_pmflags,*s++); |
48c036b1 GS |
10944 | else |
10945 | break; | |
378cc40b | 10946 | } |
79072805 | 10947 | |
5db06880 NC |
10948 | #ifdef PERL_MAD |
10949 | if (PL_madskills) { | |
10950 | if (modstart != s) | |
10951 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
10952 | append_madprops(PL_thismad, (OP*)pm, 0); |
10953 | PL_thismad = 0; | |
5db06880 NC |
10954 | } |
10955 | #endif | |
0bd48802 AL |
10956 | if ((pm->op_pmflags & PMf_CONTINUE) && ckWARN(WARN_REGEXP)) { |
10957 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" ); | |
4ac733c9 MJD |
10958 | } |
10959 | ||
79072805 | 10960 | if (es) { |
6136c704 AL |
10961 | SV * const repl = newSVpvs(""); |
10962 | ||
0244c3a4 GS |
10963 | PL_sublex_info.super_bufptr = s; |
10964 | PL_sublex_info.super_bufend = PL_bufend; | |
10965 | PL_multi_end = 0; | |
79072805 | 10966 | pm->op_pmflags |= PMf_EVAL; |
463ee0b2 | 10967 | while (es-- > 0) |
10edeb5d | 10968 | sv_catpv(repl, (const char *)(es ? "eval " : "do ")); |
6f43d98f | 10969 | sv_catpvs(repl, "{"); |
3280af22 | 10970 | sv_catsv(repl, PL_lex_repl); |
9badc361 RGS |
10971 | if (strchr(SvPVX(PL_lex_repl), '#')) |
10972 | sv_catpvs(repl, "\n"); | |
10973 | sv_catpvs(repl, "}"); | |
25da4f38 | 10974 | SvEVALED_on(repl); |
3280af22 NIS |
10975 | SvREFCNT_dec(PL_lex_repl); |
10976 | PL_lex_repl = repl; | |
378cc40b | 10977 | } |
79072805 | 10978 | |
3280af22 | 10979 | PL_lex_op = (OP*)pm; |
79072805 | 10980 | yylval.ival = OP_SUBST; |
378cc40b LW |
10981 | return s; |
10982 | } | |
10983 | ||
76e3520e | 10984 | STATIC char * |
cea2e8a9 | 10985 | S_scan_trans(pTHX_ char *start) |
378cc40b | 10986 | { |
97aff369 | 10987 | dVAR; |
a0d0e21e | 10988 | register char* s; |
11343788 | 10989 | OP *o; |
79072805 LW |
10990 | short *tbl; |
10991 | I32 squash; | |
a0ed51b3 | 10992 | I32 del; |
79072805 | 10993 | I32 complement; |
5db06880 NC |
10994 | #ifdef PERL_MAD |
10995 | char *modstart; | |
10996 | #endif | |
79072805 LW |
10997 | |
10998 | yylval.ival = OP_NULL; | |
10999 | ||
5db06880 | 11000 | s = scan_str(start,!!PL_madskills,FALSE); |
37fd879b | 11001 | if (!s) |
cea2e8a9 | 11002 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
5db06880 | 11003 | |
3280af22 | 11004 | if (s[-1] == PL_multi_open) |
2f3197b3 | 11005 | s--; |
5db06880 NC |
11006 | #ifdef PERL_MAD |
11007 | if (PL_madskills) { | |
cd81e915 NC |
11008 | CURMAD('q', PL_thisopen); |
11009 | CURMAD('_', PL_thiswhite); | |
11010 | CURMAD('E', PL_thisstuff); | |
11011 | CURMAD('Q', PL_thisclose); | |
11012 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
11013 | } |
11014 | #endif | |
2f3197b3 | 11015 | |
5db06880 | 11016 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 11017 | if (!s) { |
37fd879b | 11018 | if (PL_lex_stuff) { |
3280af22 | 11019 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 11020 | PL_lex_stuff = NULL; |
37fd879b | 11021 | } |
cea2e8a9 | 11022 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 11023 | } |
5db06880 | 11024 | if (PL_madskills) { |
cd81e915 NC |
11025 | CURMAD('z', PL_thisopen); |
11026 | CURMAD('R', PL_thisstuff); | |
11027 | CURMAD('Z', PL_thisclose); | |
5db06880 | 11028 | } |
79072805 | 11029 | |
a0ed51b3 | 11030 | complement = del = squash = 0; |
5db06880 NC |
11031 | #ifdef PERL_MAD |
11032 | modstart = s; | |
11033 | #endif | |
7a1e2023 NC |
11034 | while (1) { |
11035 | switch (*s) { | |
11036 | case 'c': | |
79072805 | 11037 | complement = OPpTRANS_COMPLEMENT; |
7a1e2023 NC |
11038 | break; |
11039 | case 'd': | |
a0ed51b3 | 11040 | del = OPpTRANS_DELETE; |
7a1e2023 NC |
11041 | break; |
11042 | case 's': | |
79072805 | 11043 | squash = OPpTRANS_SQUASH; |
7a1e2023 NC |
11044 | break; |
11045 | default: | |
11046 | goto no_more; | |
11047 | } | |
395c3793 LW |
11048 | s++; |
11049 | } | |
7a1e2023 | 11050 | no_more: |
8973db79 | 11051 | |
aa1f7c5b | 11052 | tbl = (short *)PerlMemShared_calloc(complement&&!del?258:256, sizeof(short)); |
8973db79 | 11053 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
59f00321 RGS |
11054 | o->op_private &= ~OPpTRANS_ALL; |
11055 | o->op_private |= del|squash|complement| | |
7948272d NIS |
11056 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| |
11057 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 11058 | |
3280af22 | 11059 | PL_lex_op = o; |
79072805 | 11060 | yylval.ival = OP_TRANS; |
5db06880 NC |
11061 | |
11062 | #ifdef PERL_MAD | |
11063 | if (PL_madskills) { | |
11064 | if (modstart != s) | |
11065 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
11066 | append_madprops(PL_thismad, o, 0); |
11067 | PL_thismad = 0; | |
5db06880 NC |
11068 | } |
11069 | #endif | |
11070 | ||
79072805 LW |
11071 | return s; |
11072 | } | |
11073 | ||
76e3520e | 11074 | STATIC char * |
cea2e8a9 | 11075 | S_scan_heredoc(pTHX_ register char *s) |
79072805 | 11076 | { |
97aff369 | 11077 | dVAR; |
79072805 LW |
11078 | SV *herewas; |
11079 | I32 op_type = OP_SCALAR; | |
11080 | I32 len; | |
11081 | SV *tmpstr; | |
11082 | char term; | |
73d840c0 | 11083 | const char *found_newline; |
79072805 | 11084 | register char *d; |
fc36a67e | 11085 | register char *e; |
4633a7c4 | 11086 | char *peek; |
f54cb97a | 11087 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
5db06880 NC |
11088 | #ifdef PERL_MAD |
11089 | I32 stuffstart = s - SvPVX(PL_linestr); | |
11090 | char *tstart; | |
11091 | ||
cd81e915 | 11092 | PL_realtokenstart = -1; |
5db06880 | 11093 | #endif |
79072805 LW |
11094 | |
11095 | s += 2; | |
3280af22 NIS |
11096 | d = PL_tokenbuf; |
11097 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 11098 | if (!outer) |
79072805 | 11099 | *d++ = '\n'; |
c35e046a AL |
11100 | peek = s; |
11101 | while (SPACE_OR_TAB(*peek)) | |
11102 | peek++; | |
3792a11b | 11103 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 11104 | s = peek; |
79072805 | 11105 | term = *s++; |
3280af22 | 11106 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 11107 | d += len; |
3280af22 | 11108 | if (s < PL_bufend) |
79072805 | 11109 | s++; |
79072805 LW |
11110 | } |
11111 | else { | |
11112 | if (*s == '\\') | |
11113 | s++, term = '\''; | |
11114 | else | |
11115 | term = '"'; | |
7e2040f0 | 11116 | if (!isALNUM_lazy_if(s,UTF)) |
12bcd1a6 | 11117 | deprecate_old("bare << to mean <<\"\""); |
7e2040f0 | 11118 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 11119 | if (d < e) |
11120 | *d++ = *s; | |
11121 | } | |
11122 | } | |
3280af22 | 11123 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 11124 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
11125 | *d++ = '\n'; |
11126 | *d = '\0'; | |
3280af22 | 11127 | len = d - PL_tokenbuf; |
5db06880 NC |
11128 | |
11129 | #ifdef PERL_MAD | |
11130 | if (PL_madskills) { | |
11131 | tstart = PL_tokenbuf + !outer; | |
cd81e915 | 11132 | PL_thisclose = newSVpvn(tstart, len - !outer); |
5db06880 | 11133 | tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 | 11134 | PL_thisopen = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11135 | stuffstart = s - SvPVX(PL_linestr); |
11136 | } | |
11137 | #endif | |
6a27c188 | 11138 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
11139 | d = strchr(s, '\r'); |
11140 | if (d) { | |
b464bac0 | 11141 | char * const olds = s; |
f63a84b2 | 11142 | s = d; |
3280af22 | 11143 | while (s < PL_bufend) { |
f63a84b2 LW |
11144 | if (*s == '\r') { |
11145 | *d++ = '\n'; | |
11146 | if (*++s == '\n') | |
11147 | s++; | |
11148 | } | |
11149 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
11150 | *d++ = *s++; | |
11151 | s++; | |
11152 | } | |
11153 | else | |
11154 | *d++ = *s++; | |
11155 | } | |
11156 | *d = '\0'; | |
3280af22 | 11157 | PL_bufend = d; |
95a20fc0 | 11158 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
11159 | s = olds; |
11160 | } | |
11161 | #endif | |
5db06880 NC |
11162 | #ifdef PERL_MAD |
11163 | found_newline = 0; | |
11164 | #endif | |
10edeb5d | 11165 | if ( outer || !(found_newline = (char*)memchr((void*)s, '\n', PL_bufend - s)) ) { |
73d840c0 AL |
11166 | herewas = newSVpvn(s,PL_bufend-s); |
11167 | } | |
11168 | else { | |
5db06880 NC |
11169 | #ifdef PERL_MAD |
11170 | herewas = newSVpvn(s-1,found_newline-s+1); | |
11171 | #else | |
73d840c0 AL |
11172 | s--; |
11173 | herewas = newSVpvn(s,found_newline-s); | |
5db06880 | 11174 | #endif |
73d840c0 | 11175 | } |
5db06880 NC |
11176 | #ifdef PERL_MAD |
11177 | if (PL_madskills) { | |
11178 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11179 | if (PL_thisstuff) |
11180 | sv_catpvn(PL_thisstuff, tstart, s - tstart); | |
5db06880 | 11181 | else |
cd81e915 | 11182 | PL_thisstuff = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11183 | } |
11184 | #endif | |
79072805 | 11185 | s += SvCUR(herewas); |
748a9306 | 11186 | |
5db06880 NC |
11187 | #ifdef PERL_MAD |
11188 | stuffstart = s - SvPVX(PL_linestr); | |
11189 | ||
11190 | if (found_newline) | |
11191 | s--; | |
11192 | #endif | |
11193 | ||
7d0a29fe NC |
11194 | tmpstr = newSV_type(SVt_PVIV); |
11195 | SvGROW(tmpstr, 80); | |
748a9306 | 11196 | if (term == '\'') { |
79072805 | 11197 | op_type = OP_CONST; |
45977657 | 11198 | SvIV_set(tmpstr, -1); |
748a9306 LW |
11199 | } |
11200 | else if (term == '`') { | |
79072805 | 11201 | op_type = OP_BACKTICK; |
45977657 | 11202 | SvIV_set(tmpstr, '\\'); |
748a9306 | 11203 | } |
79072805 LW |
11204 | |
11205 | CLINE; | |
57843af0 | 11206 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
11207 | PL_multi_open = PL_multi_close = '<'; |
11208 | term = *PL_tokenbuf; | |
0244c3a4 | 11209 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
6136c704 AL |
11210 | char * const bufptr = PL_sublex_info.super_bufptr; |
11211 | char * const bufend = PL_sublex_info.super_bufend; | |
b464bac0 | 11212 | char * const olds = s - SvCUR(herewas); |
0244c3a4 GS |
11213 | s = strchr(bufptr, '\n'); |
11214 | if (!s) | |
11215 | s = bufend; | |
11216 | d = s; | |
11217 | while (s < bufend && | |
11218 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
11219 | if (*s++ == '\n') | |
57843af0 | 11220 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
11221 | } |
11222 | if (s >= bufend) { | |
eb160463 | 11223 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
11224 | missingterm(PL_tokenbuf); |
11225 | } | |
11226 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
11227 | sv_setpvn(tmpstr,d+1,s-d); | |
11228 | s += len - 1; | |
11229 | sv_catpvn(herewas,s,bufend-s); | |
95a20fc0 | 11230 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
11231 | |
11232 | s = olds; | |
11233 | goto retval; | |
11234 | } | |
11235 | else if (!outer) { | |
79072805 | 11236 | d = s; |
3280af22 NIS |
11237 | while (s < PL_bufend && |
11238 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 11239 | if (*s++ == '\n') |
57843af0 | 11240 | CopLINE_inc(PL_curcop); |
79072805 | 11241 | } |
3280af22 | 11242 | if (s >= PL_bufend) { |
eb160463 | 11243 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11244 | missingterm(PL_tokenbuf); |
79072805 LW |
11245 | } |
11246 | sv_setpvn(tmpstr,d+1,s-d); | |
5db06880 NC |
11247 | #ifdef PERL_MAD |
11248 | if (PL_madskills) { | |
cd81e915 NC |
11249 | if (PL_thisstuff) |
11250 | sv_catpvn(PL_thisstuff, d + 1, s - d); | |
5db06880 | 11251 | else |
cd81e915 | 11252 | PL_thisstuff = newSVpvn(d + 1, s - d); |
5db06880 NC |
11253 | stuffstart = s - SvPVX(PL_linestr); |
11254 | } | |
11255 | #endif | |
79072805 | 11256 | s += len - 1; |
57843af0 | 11257 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 11258 | |
3280af22 NIS |
11259 | sv_catpvn(herewas,s,PL_bufend-s); |
11260 | sv_setsv(PL_linestr,herewas); | |
11261 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
11262 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11263 | PL_last_lop = PL_last_uni = NULL; |
79072805 LW |
11264 | } |
11265 | else | |
11266 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
3280af22 | 11267 | while (s >= PL_bufend) { /* multiple line string? */ |
5db06880 NC |
11268 | #ifdef PERL_MAD |
11269 | if (PL_madskills) { | |
11270 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11271 | if (PL_thisstuff) |
11272 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11273 | else |
cd81e915 | 11274 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11275 | } |
11276 | #endif | |
fd2d0953 | 11277 | if (!outer || |
3280af22 | 11278 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { |
eb160463 | 11279 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11280 | missingterm(PL_tokenbuf); |
79072805 | 11281 | } |
5db06880 NC |
11282 | #ifdef PERL_MAD |
11283 | stuffstart = s - SvPVX(PL_linestr); | |
11284 | #endif | |
57843af0 | 11285 | CopLINE_inc(PL_curcop); |
3280af22 | 11286 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 11287 | PL_last_lop = PL_last_uni = NULL; |
6a27c188 | 11288 | #ifndef PERL_STRICT_CR |
3280af22 | 11289 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
11290 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
11291 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 11292 | { |
3280af22 NIS |
11293 | PL_bufend[-2] = '\n'; |
11294 | PL_bufend--; | |
95a20fc0 | 11295 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 11296 | } |
3280af22 NIS |
11297 | else if (PL_bufend[-1] == '\r') |
11298 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11299 | } |
3280af22 NIS |
11300 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
11301 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11302 | #endif |
80a702cd | 11303 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 11304 | update_debugger_info(PL_linestr, NULL, 0); |
3280af22 | 11305 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
95a20fc0 | 11306 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
1de9afcd | 11307 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
11308 | sv_catsv(PL_linestr,herewas); |
11309 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
1de9afcd | 11310 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
11311 | } |
11312 | else { | |
3280af22 NIS |
11313 | s = PL_bufend; |
11314 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
11315 | } |
11316 | } | |
79072805 | 11317 | s++; |
0244c3a4 | 11318 | retval: |
57843af0 | 11319 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 11320 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
1da4ca5f | 11321 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 11322 | } |
8990e307 | 11323 | SvREFCNT_dec(herewas); |
2f31ce75 | 11324 | if (!IN_BYTES) { |
95a20fc0 | 11325 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
2f31ce75 JH |
11326 | SvUTF8_on(tmpstr); |
11327 | else if (PL_encoding) | |
11328 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
11329 | } | |
3280af22 | 11330 | PL_lex_stuff = tmpstr; |
79072805 LW |
11331 | yylval.ival = op_type; |
11332 | return s; | |
11333 | } | |
11334 | ||
02aa26ce NT |
11335 | /* scan_inputsymbol |
11336 | takes: current position in input buffer | |
11337 | returns: new position in input buffer | |
11338 | side-effects: yylval and lex_op are set. | |
11339 | ||
11340 | This code handles: | |
11341 | ||
11342 | <> read from ARGV | |
11343 | <FH> read from filehandle | |
11344 | <pkg::FH> read from package qualified filehandle | |
11345 | <pkg'FH> read from package qualified filehandle | |
11346 | <$fh> read from filehandle in $fh | |
11347 | <*.h> filename glob | |
11348 | ||
11349 | */ | |
11350 | ||
76e3520e | 11351 | STATIC char * |
cea2e8a9 | 11352 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 11353 | { |
97aff369 | 11354 | dVAR; |
02aa26ce | 11355 | register char *s = start; /* current position in buffer */ |
1b420867 | 11356 | char *end; |
79072805 LW |
11357 | I32 len; |
11358 | ||
6136c704 AL |
11359 | char *d = PL_tokenbuf; /* start of temp holding space */ |
11360 | const char * const e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
11361 | ||
1b420867 GS |
11362 | end = strchr(s, '\n'); |
11363 | if (!end) | |
11364 | end = PL_bufend; | |
11365 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
11366 | |
11367 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 11368 | or if it didn't end, or if we see a newline |
02aa26ce NT |
11369 | */ |
11370 | ||
bb7a0f54 | 11371 | if (len >= (I32)sizeof PL_tokenbuf) |
cea2e8a9 | 11372 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 11373 | if (s >= end) |
cea2e8a9 | 11374 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 11375 | |
fc36a67e | 11376 | s++; |
02aa26ce NT |
11377 | |
11378 | /* check for <$fh> | |
11379 | Remember, only scalar variables are interpreted as filehandles by | |
11380 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
11381 | treated as a glob() call. | |
11382 | This code makes use of the fact that except for the $ at the front, | |
11383 | a scalar variable and a filehandle look the same. | |
11384 | */ | |
4633a7c4 | 11385 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
11386 | |
11387 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 11388 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 11389 | d++; |
02aa26ce NT |
11390 | |
11391 | /* If we've tried to read what we allow filehandles to look like, and | |
11392 | there's still text left, then it must be a glob() and not a getline. | |
11393 | Use scan_str to pull out the stuff between the <> and treat it | |
11394 | as nothing more than a string. | |
11395 | */ | |
11396 | ||
3280af22 | 11397 | if (d - PL_tokenbuf != len) { |
79072805 LW |
11398 | yylval.ival = OP_GLOB; |
11399 | set_csh(); | |
5db06880 | 11400 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 11401 | if (!s) |
cea2e8a9 | 11402 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
11403 | return s; |
11404 | } | |
395c3793 | 11405 | else { |
9b3023bc | 11406 | bool readline_overriden = FALSE; |
6136c704 | 11407 | GV *gv_readline; |
9b3023bc | 11408 | GV **gvp; |
02aa26ce | 11409 | /* we're in a filehandle read situation */ |
3280af22 | 11410 | d = PL_tokenbuf; |
02aa26ce NT |
11411 | |
11412 | /* turn <> into <ARGV> */ | |
79072805 | 11413 | if (!len) |
689badd5 | 11414 | Copy("ARGV",d,5,char); |
02aa26ce | 11415 | |
9b3023bc | 11416 | /* Check whether readline() is overriden */ |
fafc274c | 11417 | gv_readline = gv_fetchpvs("readline", GV_NOTQUAL, SVt_PVCV); |
6136c704 | 11418 | if ((gv_readline |
ba979b31 | 11419 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) |
9b3023bc | 11420 | || |
017a3ce5 | 11421 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE)) |
9e0d86f8 | 11422 | && (gv_readline = *gvp) && isGV_with_GP(gv_readline) |
ba979b31 | 11423 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
11424 | readline_overriden = TRUE; |
11425 | ||
02aa26ce NT |
11426 | /* if <$fh>, create the ops to turn the variable into a |
11427 | filehandle | |
11428 | */ | |
79072805 | 11429 | if (*d == '$') { |
02aa26ce NT |
11430 | /* try to find it in the pad for this block, otherwise find |
11431 | add symbol table ops | |
11432 | */ | |
bbd11bfc AL |
11433 | const PADOFFSET tmp = pad_findmy(d); |
11434 | if (tmp != NOT_IN_PAD) { | |
00b1698f | 11435 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
6136c704 AL |
11436 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
11437 | HEK * const stashname = HvNAME_HEK(stash); | |
11438 | SV * const sym = sv_2mortal(newSVhek(stashname)); | |
396482e1 | 11439 | sv_catpvs(sym, "::"); |
f558d5af JH |
11440 | sv_catpv(sym, d+1); |
11441 | d = SvPVX(sym); | |
11442 | goto intro_sym; | |
11443 | } | |
11444 | else { | |
6136c704 | 11445 | OP * const o = newOP(OP_PADSV, 0); |
f558d5af | 11446 | o->op_targ = tmp; |
9b3023bc RGS |
11447 | PL_lex_op = readline_overriden |
11448 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11449 | append_elem(OP_LIST, o, | |
11450 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
11451 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 11452 | } |
a0d0e21e LW |
11453 | } |
11454 | else { | |
f558d5af JH |
11455 | GV *gv; |
11456 | ++d; | |
11457 | intro_sym: | |
11458 | gv = gv_fetchpv(d, | |
11459 | (PL_in_eval | |
11460 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 11461 | : GV_ADDMULTI), |
f558d5af | 11462 | SVt_PV); |
9b3023bc RGS |
11463 | PL_lex_op = readline_overriden |
11464 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11465 | append_elem(OP_LIST, | |
11466 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
11467 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11468 | : (OP*)newUNOP(OP_READLINE, 0, | |
11469 | newUNOP(OP_RV2SV, 0, | |
11470 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 11471 | } |
7c6fadd6 RGS |
11472 | if (!readline_overriden) |
11473 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
f5284f61 | 11474 | /* we created the ops in PL_lex_op, so make yylval.ival a null op */ |
79072805 LW |
11475 | yylval.ival = OP_NULL; |
11476 | } | |
02aa26ce NT |
11477 | |
11478 | /* If it's none of the above, it must be a literal filehandle | |
11479 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 11480 | else { |
6136c704 | 11481 | GV * const gv = gv_fetchpv(d, GV_ADD, SVt_PVIO); |
9b3023bc RGS |
11482 | PL_lex_op = readline_overriden |
11483 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11484 | append_elem(OP_LIST, | |
11485 | newGVOP(OP_GV, 0, gv), | |
11486 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11487 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
79072805 LW |
11488 | yylval.ival = OP_NULL; |
11489 | } | |
11490 | } | |
02aa26ce | 11491 | |
79072805 LW |
11492 | return s; |
11493 | } | |
11494 | ||
02aa26ce NT |
11495 | |
11496 | /* scan_str | |
11497 | takes: start position in buffer | |
09bef843 SB |
11498 | keep_quoted preserve \ on the embedded delimiter(s) |
11499 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
11500 | returns: position to continue reading from buffer |
11501 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
11502 | updates the read buffer. | |
11503 | ||
11504 | This subroutine pulls a string out of the input. It is called for: | |
11505 | q single quotes q(literal text) | |
11506 | ' single quotes 'literal text' | |
11507 | qq double quotes qq(interpolate $here please) | |
11508 | " double quotes "interpolate $here please" | |
11509 | qx backticks qx(/bin/ls -l) | |
11510 | ` backticks `/bin/ls -l` | |
11511 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
11512 | m// regexp match m/this/ | |
11513 | s/// regexp substitute s/this/that/ | |
11514 | tr/// string transliterate tr/this/that/ | |
11515 | y/// string transliterate y/this/that/ | |
11516 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 11517 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
11518 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
11519 | ||
11520 | In most of these cases (all but <>, patterns and transliterate) | |
11521 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
11522 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
11523 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
11524 | calls scan_str(). | |
4e553d73 | 11525 | |
02aa26ce NT |
11526 | It skips whitespace before the string starts, and treats the first |
11527 | character as the delimiter. If the delimiter is one of ([{< then | |
11528 | the corresponding "close" character )]}> is used as the closing | |
11529 | delimiter. It allows quoting of delimiters, and if the string has | |
11530 | balanced delimiters ([{<>}]) it allows nesting. | |
11531 | ||
37fd879b HS |
11532 | On success, the SV with the resulting string is put into lex_stuff or, |
11533 | if that is already non-NULL, into lex_repl. The second case occurs only | |
11534 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
11535 | For convenience, the terminating delimiter character is stuffed into | |
11536 | SvIVX of the SV. | |
02aa26ce NT |
11537 | */ |
11538 | ||
76e3520e | 11539 | STATIC char * |
09bef843 | 11540 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 11541 | { |
97aff369 | 11542 | dVAR; |
02aa26ce | 11543 | SV *sv; /* scalar value: string */ |
d3fcec1f | 11544 | const char *tmps; /* temp string, used for delimiter matching */ |
02aa26ce NT |
11545 | register char *s = start; /* current position in the buffer */ |
11546 | register char term; /* terminating character */ | |
11547 | register char *to; /* current position in the sv's data */ | |
11548 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 11549 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
220e2d4e | 11550 | I32 termcode; /* terminating char. code */ |
89ebb4a3 | 11551 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
220e2d4e | 11552 | STRLEN termlen; /* length of terminating string */ |
0331ef07 | 11553 | int last_off = 0; /* last position for nesting bracket */ |
5db06880 NC |
11554 | #ifdef PERL_MAD |
11555 | int stuffstart; | |
11556 | char *tstart; | |
11557 | #endif | |
02aa26ce NT |
11558 | |
11559 | /* skip space before the delimiter */ | |
29595ff2 NC |
11560 | if (isSPACE(*s)) { |
11561 | s = PEEKSPACE(s); | |
11562 | } | |
02aa26ce | 11563 | |
5db06880 | 11564 | #ifdef PERL_MAD |
cd81e915 NC |
11565 | if (PL_realtokenstart >= 0) { |
11566 | stuffstart = PL_realtokenstart; | |
11567 | PL_realtokenstart = -1; | |
5db06880 NC |
11568 | } |
11569 | else | |
11570 | stuffstart = start - SvPVX(PL_linestr); | |
11571 | #endif | |
02aa26ce | 11572 | /* mark where we are, in case we need to report errors */ |
79072805 | 11573 | CLINE; |
02aa26ce NT |
11574 | |
11575 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 11576 | term = *s; |
220e2d4e IH |
11577 | if (!UTF) { |
11578 | termcode = termstr[0] = term; | |
11579 | termlen = 1; | |
11580 | } | |
11581 | else { | |
f3b9ce0f | 11582 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
220e2d4e IH |
11583 | Copy(s, termstr, termlen, U8); |
11584 | if (!UTF8_IS_INVARIANT(term)) | |
11585 | has_utf8 = TRUE; | |
11586 | } | |
b1c7b182 | 11587 | |
02aa26ce | 11588 | /* mark where we are */ |
57843af0 | 11589 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 11590 | PL_multi_open = term; |
02aa26ce NT |
11591 | |
11592 | /* find corresponding closing delimiter */ | |
93a17b20 | 11593 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
220e2d4e IH |
11594 | termcode = termstr[0] = term = tmps[5]; |
11595 | ||
3280af22 | 11596 | PL_multi_close = term; |
79072805 | 11597 | |
561b68a9 SH |
11598 | /* create a new SV to hold the contents. 79 is the SV's initial length. |
11599 | What a random number. */ | |
7d0a29fe NC |
11600 | sv = newSV_type(SVt_PVIV); |
11601 | SvGROW(sv, 80); | |
45977657 | 11602 | SvIV_set(sv, termcode); |
a0d0e21e | 11603 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
11604 | |
11605 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 11606 | if (keep_delims) |
220e2d4e IH |
11607 | sv_catpvn(sv, s, termlen); |
11608 | s += termlen; | |
5db06880 NC |
11609 | #ifdef PERL_MAD |
11610 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11611 | if (!PL_thisopen && !keep_delims) { |
11612 | PL_thisopen = newSVpvn(tstart, s - tstart); | |
5db06880 NC |
11613 | stuffstart = s - SvPVX(PL_linestr); |
11614 | } | |
11615 | #endif | |
93a17b20 | 11616 | for (;;) { |
220e2d4e IH |
11617 | if (PL_encoding && !UTF) { |
11618 | bool cont = TRUE; | |
11619 | ||
11620 | while (cont) { | |
95a20fc0 | 11621 | int offset = s - SvPVX_const(PL_linestr); |
66a1b24b | 11622 | const bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f3b9ce0f | 11623 | &offset, (char*)termstr, termlen); |
6136c704 AL |
11624 | const char * const ns = SvPVX_const(PL_linestr) + offset; |
11625 | char * const svlast = SvEND(sv) - 1; | |
220e2d4e IH |
11626 | |
11627 | for (; s < ns; s++) { | |
11628 | if (*s == '\n' && !PL_rsfp) | |
11629 | CopLINE_inc(PL_curcop); | |
11630 | } | |
11631 | if (!found) | |
11632 | goto read_more_line; | |
11633 | else { | |
11634 | /* handle quoted delimiters */ | |
52327caf | 11635 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
f54cb97a | 11636 | const char *t; |
95a20fc0 | 11637 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
220e2d4e IH |
11638 | t--; |
11639 | if ((svlast-1 - t) % 2) { | |
11640 | if (!keep_quoted) { | |
11641 | *(svlast-1) = term; | |
11642 | *svlast = '\0'; | |
11643 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11644 | } | |
11645 | continue; | |
11646 | } | |
11647 | } | |
11648 | if (PL_multi_open == PL_multi_close) { | |
11649 | cont = FALSE; | |
11650 | } | |
11651 | else { | |
f54cb97a AL |
11652 | const char *t; |
11653 | char *w; | |
0331ef07 | 11654 | for (t = w = SvPVX(sv)+last_off; t < svlast; w++, t++) { |
220e2d4e IH |
11655 | /* At here, all closes are "was quoted" one, |
11656 | so we don't check PL_multi_close. */ | |
11657 | if (*t == '\\') { | |
11658 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
11659 | t++; | |
11660 | else | |
11661 | *w++ = *t++; | |
11662 | } | |
11663 | else if (*t == PL_multi_open) | |
11664 | brackets++; | |
11665 | ||
11666 | *w = *t; | |
11667 | } | |
11668 | if (w < t) { | |
11669 | *w++ = term; | |
11670 | *w = '\0'; | |
95a20fc0 | 11671 | SvCUR_set(sv, w - SvPVX_const(sv)); |
220e2d4e | 11672 | } |
0331ef07 | 11673 | last_off = w - SvPVX(sv); |
220e2d4e IH |
11674 | if (--brackets <= 0) |
11675 | cont = FALSE; | |
11676 | } | |
11677 | } | |
11678 | } | |
11679 | if (!keep_delims) { | |
11680 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11681 | *SvEND(sv) = '\0'; | |
11682 | } | |
11683 | break; | |
11684 | } | |
11685 | ||
02aa26ce | 11686 | /* extend sv if need be */ |
3280af22 | 11687 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 11688 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 11689 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 11690 | |
02aa26ce | 11691 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
11692 | if (PL_multi_open == PL_multi_close) { |
11693 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 11694 | /* embedded newlines increment the current line number */ |
3280af22 | 11695 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11696 | CopLINE_inc(PL_curcop); |
02aa26ce | 11697 | /* handle quoted delimiters */ |
3280af22 | 11698 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 11699 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 11700 | s++; |
02aa26ce | 11701 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
11702 | else |
11703 | *to++ = *s++; | |
11704 | } | |
02aa26ce NT |
11705 | /* terminate when run out of buffer (the for() condition), or |
11706 | have found the terminator */ | |
220e2d4e IH |
11707 | else if (*s == term) { |
11708 | if (termlen == 1) | |
11709 | break; | |
f3b9ce0f | 11710 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
220e2d4e IH |
11711 | break; |
11712 | } | |
63cd0674 | 11713 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11714 | has_utf8 = TRUE; |
93a17b20 LW |
11715 | *to = *s; |
11716 | } | |
11717 | } | |
02aa26ce NT |
11718 | |
11719 | /* if the terminator isn't the same as the start character (e.g., | |
11720 | matched brackets), we have to allow more in the quoting, and | |
11721 | be prepared for nested brackets. | |
11722 | */ | |
93a17b20 | 11723 | else { |
02aa26ce | 11724 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 11725 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 11726 | /* embedded newlines increment the line count */ |
3280af22 | 11727 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11728 | CopLINE_inc(PL_curcop); |
02aa26ce | 11729 | /* backslashes can escape the open or closing characters */ |
3280af22 | 11730 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
11731 | if (!keep_quoted && |
11732 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
11733 | s++; |
11734 | else | |
11735 | *to++ = *s++; | |
11736 | } | |
02aa26ce | 11737 | /* allow nested opens and closes */ |
3280af22 | 11738 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 11739 | break; |
3280af22 | 11740 | else if (*s == PL_multi_open) |
93a17b20 | 11741 | brackets++; |
63cd0674 | 11742 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11743 | has_utf8 = TRUE; |
93a17b20 LW |
11744 | *to = *s; |
11745 | } | |
11746 | } | |
02aa26ce | 11747 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 11748 | *to = '\0'; |
95a20fc0 | 11749 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 11750 | |
02aa26ce NT |
11751 | /* |
11752 | * this next chunk reads more into the buffer if we're not done yet | |
11753 | */ | |
11754 | ||
b1c7b182 GS |
11755 | if (s < PL_bufend) |
11756 | break; /* handle case where we are done yet :-) */ | |
79072805 | 11757 | |
6a27c188 | 11758 | #ifndef PERL_STRICT_CR |
95a20fc0 | 11759 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
11760 | if ((to[-2] == '\r' && to[-1] == '\n') || |
11761 | (to[-2] == '\n' && to[-1] == '\r')) | |
11762 | { | |
f63a84b2 LW |
11763 | to[-2] = '\n'; |
11764 | to--; | |
95a20fc0 | 11765 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
11766 | } |
11767 | else if (to[-1] == '\r') | |
11768 | to[-1] = '\n'; | |
11769 | } | |
95a20fc0 | 11770 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
11771 | to[-1] = '\n'; |
11772 | #endif | |
11773 | ||
220e2d4e | 11774 | read_more_line: |
02aa26ce NT |
11775 | /* if we're out of file, or a read fails, bail and reset the current |
11776 | line marker so we can report where the unterminated string began | |
11777 | */ | |
5db06880 NC |
11778 | #ifdef PERL_MAD |
11779 | if (PL_madskills) { | |
c35e046a | 11780 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 NC |
11781 | if (PL_thisstuff) |
11782 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11783 | else |
cd81e915 | 11784 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11785 | } |
11786 | #endif | |
3280af22 NIS |
11787 | if (!PL_rsfp || |
11788 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { | |
c07a80fd | 11789 | sv_free(sv); |
eb160463 | 11790 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
bd61b366 | 11791 | return NULL; |
79072805 | 11792 | } |
5db06880 NC |
11793 | #ifdef PERL_MAD |
11794 | stuffstart = 0; | |
11795 | #endif | |
02aa26ce | 11796 | /* we read a line, so increment our line counter */ |
57843af0 | 11797 | CopLINE_inc(PL_curcop); |
a0ed51b3 | 11798 | |
02aa26ce | 11799 | /* update debugger info */ |
80a702cd | 11800 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 11801 | update_debugger_info(PL_linestr, NULL, 0); |
a0ed51b3 | 11802 | |
3280af22 NIS |
11803 | /* having changed the buffer, we must update PL_bufend */ |
11804 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11805 | PL_last_lop = PL_last_uni = NULL; |
378cc40b | 11806 | } |
4e553d73 | 11807 | |
02aa26ce NT |
11808 | /* at this point, we have successfully read the delimited string */ |
11809 | ||
220e2d4e | 11810 | if (!PL_encoding || UTF) { |
5db06880 NC |
11811 | #ifdef PERL_MAD |
11812 | if (PL_madskills) { | |
c35e046a | 11813 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
29522234 | 11814 | const int len = s - tstart; |
cd81e915 | 11815 | if (PL_thisstuff) |
c35e046a | 11816 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11817 | else |
c35e046a | 11818 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11819 | if (!PL_thisclose && !keep_delims) |
11820 | PL_thisclose = newSVpvn(s,termlen); | |
5db06880 NC |
11821 | } |
11822 | #endif | |
11823 | ||
220e2d4e IH |
11824 | if (keep_delims) |
11825 | sv_catpvn(sv, s, termlen); | |
11826 | s += termlen; | |
11827 | } | |
5db06880 NC |
11828 | #ifdef PERL_MAD |
11829 | else { | |
11830 | if (PL_madskills) { | |
c35e046a AL |
11831 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
11832 | const int len = s - tstart - termlen; | |
cd81e915 | 11833 | if (PL_thisstuff) |
c35e046a | 11834 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11835 | else |
c35e046a | 11836 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11837 | if (!PL_thisclose && !keep_delims) |
11838 | PL_thisclose = newSVpvn(s - termlen,termlen); | |
5db06880 NC |
11839 | } |
11840 | } | |
11841 | #endif | |
220e2d4e | 11842 | if (has_utf8 || PL_encoding) |
b1c7b182 | 11843 | SvUTF8_on(sv); |
d0063567 | 11844 | |
57843af0 | 11845 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
11846 | |
11847 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
11848 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
11849 | SvLEN_set(sv, SvCUR(sv) + 1); | |
b7e9a5c2 | 11850 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 11851 | } |
02aa26ce NT |
11852 | |
11853 | /* decide whether this is the first or second quoted string we've read | |
11854 | for this op | |
11855 | */ | |
4e553d73 | 11856 | |
3280af22 NIS |
11857 | if (PL_lex_stuff) |
11858 | PL_lex_repl = sv; | |
79072805 | 11859 | else |
3280af22 | 11860 | PL_lex_stuff = sv; |
378cc40b LW |
11861 | return s; |
11862 | } | |
11863 | ||
02aa26ce NT |
11864 | /* |
11865 | scan_num | |
11866 | takes: pointer to position in buffer | |
11867 | returns: pointer to new position in buffer | |
11868 | side-effects: builds ops for the constant in yylval.op | |
11869 | ||
11870 | Read a number in any of the formats that Perl accepts: | |
11871 | ||
7fd134d9 JH |
11872 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
11873 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
11874 | 0b[01](_?[01])* |
11875 | 0[0-7](_?[0-7])* | |
11876 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 11877 | |
3280af22 | 11878 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
11879 | thing it reads. |
11880 | ||
11881 | If it reads a number without a decimal point or an exponent, it will | |
11882 | try converting the number to an integer and see if it can do so | |
11883 | without loss of precision. | |
11884 | */ | |
4e553d73 | 11885 | |
378cc40b | 11886 | char * |
bfed75c6 | 11887 | Perl_scan_num(pTHX_ const char *start, YYSTYPE* lvalp) |
378cc40b | 11888 | { |
97aff369 | 11889 | dVAR; |
bfed75c6 | 11890 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
11891 | register char *d; /* destination in temp buffer */ |
11892 | register char *e; /* end of temp buffer */ | |
86554af2 | 11893 | NV nv; /* number read, as a double */ |
a0714e2c | 11894 | SV *sv = NULL; /* place to put the converted number */ |
a86a20aa | 11895 | bool floatit; /* boolean: int or float? */ |
cbbf8932 | 11896 | const char *lastub = NULL; /* position of last underbar */ |
bfed75c6 | 11897 | static char const number_too_long[] = "Number too long"; |
378cc40b | 11898 | |
02aa26ce NT |
11899 | /* We use the first character to decide what type of number this is */ |
11900 | ||
378cc40b | 11901 | switch (*s) { |
79072805 | 11902 | default: |
cea2e8a9 | 11903 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 11904 | |
02aa26ce | 11905 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 11906 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
11907 | case '0': |
11908 | { | |
02aa26ce NT |
11909 | /* variables: |
11910 | u holds the "number so far" | |
4f19785b WSI |
11911 | shift the power of 2 of the base |
11912 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
11913 | overflowed was the number more than we can hold? |
11914 | ||
11915 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
11916 | we in octal/hex/binary?" indicator to disallow hex characters |
11917 | when in octal mode. | |
02aa26ce | 11918 | */ |
9e24b6e2 JH |
11919 | NV n = 0.0; |
11920 | UV u = 0; | |
79072805 | 11921 | I32 shift; |
9e24b6e2 | 11922 | bool overflowed = FALSE; |
61f33854 | 11923 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
27da23d5 JH |
11924 | static const NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
11925 | static const char* const bases[5] = | |
11926 | { "", "binary", "", "octal", "hexadecimal" }; | |
11927 | static const char* const Bases[5] = | |
11928 | { "", "Binary", "", "Octal", "Hexadecimal" }; | |
11929 | static const char* const maxima[5] = | |
11930 | { "", | |
11931 | "0b11111111111111111111111111111111", | |
11932 | "", | |
11933 | "037777777777", | |
11934 | "0xffffffff" }; | |
bfed75c6 | 11935 | const char *base, *Base, *max; |
378cc40b | 11936 | |
02aa26ce | 11937 | /* check for hex */ |
378cc40b LW |
11938 | if (s[1] == 'x') { |
11939 | shift = 4; | |
11940 | s += 2; | |
61f33854 | 11941 | just_zero = FALSE; |
4f19785b WSI |
11942 | } else if (s[1] == 'b') { |
11943 | shift = 1; | |
11944 | s += 2; | |
61f33854 | 11945 | just_zero = FALSE; |
378cc40b | 11946 | } |
02aa26ce | 11947 | /* check for a decimal in disguise */ |
b78218b7 | 11948 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 11949 | goto decimal; |
02aa26ce | 11950 | /* so it must be octal */ |
928753ea | 11951 | else { |
378cc40b | 11952 | shift = 3; |
928753ea JH |
11953 | s++; |
11954 | } | |
11955 | ||
11956 | if (*s == '_') { | |
11957 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11958 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11959 | "Misplaced _ in number"); |
11960 | lastub = s++; | |
11961 | } | |
9e24b6e2 JH |
11962 | |
11963 | base = bases[shift]; | |
11964 | Base = Bases[shift]; | |
11965 | max = maxima[shift]; | |
02aa26ce | 11966 | |
4f19785b | 11967 | /* read the rest of the number */ |
378cc40b | 11968 | for (;;) { |
9e24b6e2 | 11969 | /* x is used in the overflow test, |
893fe2c2 | 11970 | b is the digit we're adding on. */ |
9e24b6e2 | 11971 | UV x, b; |
55497cff | 11972 | |
378cc40b | 11973 | switch (*s) { |
02aa26ce NT |
11974 | |
11975 | /* if we don't mention it, we're done */ | |
378cc40b LW |
11976 | default: |
11977 | goto out; | |
02aa26ce | 11978 | |
928753ea | 11979 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 11980 | case '_': |
041457d9 | 11981 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 11982 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11983 | "Misplaced _ in number"); |
11984 | lastub = s++; | |
de3bb511 | 11985 | break; |
02aa26ce NT |
11986 | |
11987 | /* 8 and 9 are not octal */ | |
378cc40b | 11988 | case '8': case '9': |
4f19785b | 11989 | if (shift == 3) |
cea2e8a9 | 11990 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 11991 | /* FALL THROUGH */ |
02aa26ce NT |
11992 | |
11993 | /* octal digits */ | |
4f19785b | 11994 | case '2': case '3': case '4': |
378cc40b | 11995 | case '5': case '6': case '7': |
4f19785b | 11996 | if (shift == 1) |
cea2e8a9 | 11997 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
11998 | /* FALL THROUGH */ |
11999 | ||
12000 | case '0': case '1': | |
02aa26ce | 12001 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 12002 | goto digit; |
02aa26ce NT |
12003 | |
12004 | /* hex digits */ | |
378cc40b LW |
12005 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
12006 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 12007 | /* make sure they said 0x */ |
378cc40b LW |
12008 | if (shift != 4) |
12009 | goto out; | |
55497cff | 12010 | b = (*s++ & 7) + 9; |
02aa26ce NT |
12011 | |
12012 | /* Prepare to put the digit we have onto the end | |
12013 | of the number so far. We check for overflows. | |
12014 | */ | |
12015 | ||
55497cff | 12016 | digit: |
61f33854 | 12017 | just_zero = FALSE; |
9e24b6e2 JH |
12018 | if (!overflowed) { |
12019 | x = u << shift; /* make room for the digit */ | |
12020 | ||
12021 | if ((x >> shift) != u | |
12022 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
12023 | overflowed = TRUE; |
12024 | n = (NV) u; | |
767a6a26 | 12025 | if (ckWARN_d(WARN_OVERFLOW)) |
9014280d | 12026 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), |
9e24b6e2 JH |
12027 | "Integer overflow in %s number", |
12028 | base); | |
12029 | } else | |
12030 | u = x | b; /* add the digit to the end */ | |
12031 | } | |
12032 | if (overflowed) { | |
12033 | n *= nvshift[shift]; | |
12034 | /* If an NV has not enough bits in its | |
12035 | * mantissa to represent an UV this summing of | |
12036 | * small low-order numbers is a waste of time | |
12037 | * (because the NV cannot preserve the | |
12038 | * low-order bits anyway): we could just | |
12039 | * remember when did we overflow and in the | |
12040 | * end just multiply n by the right | |
12041 | * amount. */ | |
12042 | n += (NV) b; | |
55497cff | 12043 | } |
378cc40b LW |
12044 | break; |
12045 | } | |
12046 | } | |
02aa26ce NT |
12047 | |
12048 | /* if we get here, we had success: make a scalar value from | |
12049 | the number. | |
12050 | */ | |
378cc40b | 12051 | out: |
928753ea JH |
12052 | |
12053 | /* final misplaced underbar check */ | |
12054 | if (s[-1] == '_') { | |
12055 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12056 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
12057 | } |
12058 | ||
561b68a9 | 12059 | sv = newSV(0); |
9e24b6e2 | 12060 | if (overflowed) { |
041457d9 | 12061 | if (n > 4294967295.0 && ckWARN(WARN_PORTABLE)) |
9014280d | 12062 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
12063 | "%s number > %s non-portable", |
12064 | Base, max); | |
12065 | sv_setnv(sv, n); | |
12066 | } | |
12067 | else { | |
15041a67 | 12068 | #if UVSIZE > 4 |
041457d9 | 12069 | if (u > 0xffffffff && ckWARN(WARN_PORTABLE)) |
9014280d | 12070 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
12071 | "%s number > %s non-portable", |
12072 | Base, max); | |
2cc4c2dc | 12073 | #endif |
9e24b6e2 JH |
12074 | sv_setuv(sv, u); |
12075 | } | |
61f33854 | 12076 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
bfed75c6 | 12077 | sv = new_constant(start, s - start, "integer", |
a0714e2c | 12078 | sv, NULL, NULL); |
61f33854 | 12079 | else if (PL_hints & HINT_NEW_BINARY) |
a0714e2c | 12080 | sv = new_constant(start, s - start, "binary", sv, NULL, NULL); |
378cc40b LW |
12081 | } |
12082 | break; | |
02aa26ce NT |
12083 | |
12084 | /* | |
12085 | handle decimal numbers. | |
12086 | we're also sent here when we read a 0 as the first digit | |
12087 | */ | |
378cc40b LW |
12088 | case '1': case '2': case '3': case '4': case '5': |
12089 | case '6': case '7': case '8': case '9': case '.': | |
12090 | decimal: | |
3280af22 NIS |
12091 | d = PL_tokenbuf; |
12092 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 12093 | floatit = FALSE; |
02aa26ce NT |
12094 | |
12095 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 12096 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 12097 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
12098 | if -w is on |
12099 | */ | |
93a17b20 | 12100 | if (*s == '_') { |
041457d9 | 12101 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12102 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12103 | "Misplaced _ in number"); |
12104 | lastub = s++; | |
93a17b20 | 12105 | } |
fc36a67e | 12106 | else { |
02aa26ce | 12107 | /* check for end of fixed-length buffer */ |
fc36a67e | 12108 | if (d >= e) |
cea2e8a9 | 12109 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 12110 | /* if we're ok, copy the character */ |
378cc40b | 12111 | *d++ = *s++; |
fc36a67e | 12112 | } |
378cc40b | 12113 | } |
02aa26ce NT |
12114 | |
12115 | /* final misplaced underbar check */ | |
928753ea | 12116 | if (lastub && s == lastub + 1) { |
d008e5eb | 12117 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 12118 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 12119 | } |
02aa26ce NT |
12120 | |
12121 | /* read a decimal portion if there is one. avoid | |
12122 | 3..5 being interpreted as the number 3. followed | |
12123 | by .5 | |
12124 | */ | |
2f3197b3 | 12125 | if (*s == '.' && s[1] != '.') { |
79072805 | 12126 | floatit = TRUE; |
378cc40b | 12127 | *d++ = *s++; |
02aa26ce | 12128 | |
928753ea JH |
12129 | if (*s == '_') { |
12130 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12131 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12132 | "Misplaced _ in number"); |
12133 | lastub = s; | |
12134 | } | |
12135 | ||
12136 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 12137 | */ |
fc36a67e | 12138 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 12139 | /* fixed length buffer check */ |
fc36a67e | 12140 | if (d >= e) |
cea2e8a9 | 12141 | Perl_croak(aTHX_ number_too_long); |
928753ea | 12142 | if (*s == '_') { |
041457d9 | 12143 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12144 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12145 | "Misplaced _ in number"); |
12146 | lastub = s; | |
12147 | } | |
12148 | else | |
fc36a67e | 12149 | *d++ = *s; |
378cc40b | 12150 | } |
928753ea JH |
12151 | /* fractional part ending in underbar? */ |
12152 | if (s[-1] == '_') { | |
12153 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12154 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12155 | "Misplaced _ in number"); |
12156 | } | |
dd629d5b GS |
12157 | if (*s == '.' && isDIGIT(s[1])) { |
12158 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 12159 | s = start; |
dd629d5b GS |
12160 | goto vstring; |
12161 | } | |
378cc40b | 12162 | } |
02aa26ce NT |
12163 | |
12164 | /* read exponent part, if present */ | |
3792a11b | 12165 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
12166 | floatit = TRUE; |
12167 | s++; | |
02aa26ce NT |
12168 | |
12169 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 12170 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 12171 | |
7fd134d9 JH |
12172 | /* stray preinitial _ */ |
12173 | if (*s == '_') { | |
12174 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12175 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12176 | "Misplaced _ in number"); |
12177 | lastub = s++; | |
12178 | } | |
12179 | ||
02aa26ce | 12180 | /* allow positive or negative exponent */ |
378cc40b LW |
12181 | if (*s == '+' || *s == '-') |
12182 | *d++ = *s++; | |
02aa26ce | 12183 | |
7fd134d9 JH |
12184 | /* stray initial _ */ |
12185 | if (*s == '_') { | |
12186 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12187 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12188 | "Misplaced _ in number"); |
12189 | lastub = s++; | |
12190 | } | |
12191 | ||
7fd134d9 JH |
12192 | /* read digits of exponent */ |
12193 | while (isDIGIT(*s) || *s == '_') { | |
12194 | if (isDIGIT(*s)) { | |
12195 | if (d >= e) | |
12196 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 12197 | *d++ = *s++; |
7fd134d9 JH |
12198 | } |
12199 | else { | |
041457d9 DM |
12200 | if (((lastub && s == lastub + 1) || |
12201 | (!isDIGIT(s[1]) && s[1] != '_')) | |
12202 | && ckWARN(WARN_SYNTAX)) | |
9014280d | 12203 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 | 12204 | "Misplaced _ in number"); |
b3b48e3e | 12205 | lastub = s++; |
7fd134d9 | 12206 | } |
7fd134d9 | 12207 | } |
378cc40b | 12208 | } |
02aa26ce | 12209 | |
02aa26ce NT |
12210 | |
12211 | /* make an sv from the string */ | |
561b68a9 | 12212 | sv = newSV(0); |
097ee67d | 12213 | |
0b7fceb9 | 12214 | /* |
58bb9ec3 NC |
12215 | We try to do an integer conversion first if no characters |
12216 | indicating "float" have been found. | |
0b7fceb9 MU |
12217 | */ |
12218 | ||
12219 | if (!floatit) { | |
58bb9ec3 | 12220 | UV uv; |
6136c704 | 12221 | const int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); |
58bb9ec3 NC |
12222 | |
12223 | if (flags == IS_NUMBER_IN_UV) { | |
12224 | if (uv <= IV_MAX) | |
86554af2 | 12225 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 12226 | else |
c239479b | 12227 | sv_setuv(sv, uv); |
58bb9ec3 NC |
12228 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
12229 | if (uv <= (UV) IV_MIN) | |
12230 | sv_setiv(sv, -(IV)uv); | |
12231 | else | |
12232 | floatit = TRUE; | |
12233 | } else | |
12234 | floatit = TRUE; | |
12235 | } | |
0b7fceb9 | 12236 | if (floatit) { |
58bb9ec3 NC |
12237 | /* terminate the string */ |
12238 | *d = '\0'; | |
86554af2 JH |
12239 | nv = Atof(PL_tokenbuf); |
12240 | sv_setnv(sv, nv); | |
12241 | } | |
86554af2 | 12242 | |
b8403495 JH |
12243 | if ( floatit ? (PL_hints & HINT_NEW_FLOAT) : |
12244 | (PL_hints & HINT_NEW_INTEGER) ) | |
10edeb5d JH |
12245 | sv = new_constant(PL_tokenbuf, |
12246 | d - PL_tokenbuf, | |
12247 | (const char *) | |
b8403495 | 12248 | (floatit ? "float" : "integer"), |
a0714e2c | 12249 | sv, NULL, NULL); |
378cc40b | 12250 | break; |
0b7fceb9 | 12251 | |
e312add1 | 12252 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 12253 | case 'v': |
dd629d5b | 12254 | vstring: |
561b68a9 | 12255 | sv = newSV(5); /* preallocate storage space */ |
65b06e02 | 12256 | s = scan_vstring(s, PL_bufend, sv); |
a7cb1f99 | 12257 | break; |
79072805 | 12258 | } |
a687059c | 12259 | |
02aa26ce NT |
12260 | /* make the op for the constant and return */ |
12261 | ||
a86a20aa | 12262 | if (sv) |
b73d6f50 | 12263 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 12264 | else |
5f66b61c | 12265 | lvalp->opval = NULL; |
a687059c | 12266 | |
73d840c0 | 12267 | return (char *)s; |
378cc40b LW |
12268 | } |
12269 | ||
76e3520e | 12270 | STATIC char * |
cea2e8a9 | 12271 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 12272 | { |
97aff369 | 12273 | dVAR; |
79072805 | 12274 | register char *eol; |
378cc40b | 12275 | register char *t; |
6136c704 | 12276 | SV * const stuff = newSVpvs(""); |
79072805 | 12277 | bool needargs = FALSE; |
c5ee2135 | 12278 | bool eofmt = FALSE; |
5db06880 NC |
12279 | #ifdef PERL_MAD |
12280 | char *tokenstart = s; | |
12281 | SV* savewhite; | |
12282 | ||
12283 | if (PL_madskills) { | |
cd81e915 NC |
12284 | savewhite = PL_thiswhite; |
12285 | PL_thiswhite = 0; | |
5db06880 NC |
12286 | } |
12287 | #endif | |
378cc40b | 12288 | |
79072805 | 12289 | while (!needargs) { |
a1b95068 | 12290 | if (*s == '.') { |
c35e046a | 12291 | t = s+1; |
51882d45 | 12292 | #ifdef PERL_STRICT_CR |
c35e046a AL |
12293 | while (SPACE_OR_TAB(*t)) |
12294 | t++; | |
51882d45 | 12295 | #else |
c35e046a AL |
12296 | while (SPACE_OR_TAB(*t) || *t == '\r') |
12297 | t++; | |
51882d45 | 12298 | #endif |
c5ee2135 WL |
12299 | if (*t == '\n' || t == PL_bufend) { |
12300 | eofmt = TRUE; | |
79072805 | 12301 | break; |
c5ee2135 | 12302 | } |
79072805 | 12303 | } |
3280af22 | 12304 | if (PL_in_eval && !PL_rsfp) { |
07409e01 | 12305 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 12306 | if (!eol++) |
3280af22 | 12307 | eol = PL_bufend; |
0f85fab0 LW |
12308 | } |
12309 | else | |
3280af22 | 12310 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 12311 | if (*s != '#') { |
a0d0e21e LW |
12312 | for (t = s; t < eol; t++) { |
12313 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
12314 | needargs = FALSE; | |
12315 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 12316 | } |
a0d0e21e LW |
12317 | if (*t == '@' || *t == '^') |
12318 | needargs = TRUE; | |
378cc40b | 12319 | } |
7121b347 MG |
12320 | if (eol > s) { |
12321 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 12322 | #ifndef PERL_STRICT_CR |
7121b347 MG |
12323 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
12324 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
12325 | end[-2] = '\n'; | |
12326 | end[-1] = '\0'; | |
b162af07 | 12327 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 12328 | } |
2dc4c65b | 12329 | #endif |
7121b347 MG |
12330 | } |
12331 | else | |
12332 | break; | |
79072805 | 12333 | } |
95a20fc0 | 12334 | s = (char*)eol; |
3280af22 | 12335 | if (PL_rsfp) { |
5db06880 NC |
12336 | #ifdef PERL_MAD |
12337 | if (PL_madskills) { | |
cd81e915 NC |
12338 | if (PL_thistoken) |
12339 | sv_catpvn(PL_thistoken, tokenstart, PL_bufend - tokenstart); | |
5db06880 | 12340 | else |
cd81e915 | 12341 | PL_thistoken = newSVpvn(tokenstart, PL_bufend - tokenstart); |
5db06880 NC |
12342 | } |
12343 | #endif | |
3280af22 | 12344 | s = filter_gets(PL_linestr, PL_rsfp, 0); |
5db06880 NC |
12345 | #ifdef PERL_MAD |
12346 | tokenstart = PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
12347 | #else | |
3280af22 | 12348 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); |
5db06880 | 12349 | #endif |
3280af22 | 12350 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); |
bd61b366 | 12351 | PL_last_lop = PL_last_uni = NULL; |
79072805 | 12352 | if (!s) { |
3280af22 | 12353 | s = PL_bufptr; |
378cc40b LW |
12354 | break; |
12355 | } | |
378cc40b | 12356 | } |
463ee0b2 | 12357 | incline(s); |
79072805 | 12358 | } |
a0d0e21e LW |
12359 | enough: |
12360 | if (SvCUR(stuff)) { | |
3280af22 | 12361 | PL_expect = XTERM; |
79072805 | 12362 | if (needargs) { |
3280af22 | 12363 | PL_lex_state = LEX_NORMAL; |
cd81e915 | 12364 | start_force(PL_curforce); |
9ded7720 | 12365 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 LW |
12366 | force_next(','); |
12367 | } | |
a0d0e21e | 12368 | else |
3280af22 | 12369 | PL_lex_state = LEX_FORMLINE; |
1bd51a4c | 12370 | if (!IN_BYTES) { |
95a20fc0 | 12371 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
1bd51a4c IH |
12372 | SvUTF8_on(stuff); |
12373 | else if (PL_encoding) | |
12374 | sv_recode_to_utf8(stuff, PL_encoding); | |
12375 | } | |
cd81e915 | 12376 | start_force(PL_curforce); |
9ded7720 | 12377 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 12378 | force_next(THING); |
cd81e915 | 12379 | start_force(PL_curforce); |
9ded7720 | 12380 | NEXTVAL_NEXTTOKE.ival = OP_FORMLINE; |
79072805 | 12381 | force_next(LSTOP); |
378cc40b | 12382 | } |
79072805 | 12383 | else { |
8990e307 | 12384 | SvREFCNT_dec(stuff); |
c5ee2135 WL |
12385 | if (eofmt) |
12386 | PL_lex_formbrack = 0; | |
3280af22 | 12387 | PL_bufptr = s; |
79072805 | 12388 | } |
5db06880 NC |
12389 | #ifdef PERL_MAD |
12390 | if (PL_madskills) { | |
cd81e915 NC |
12391 | if (PL_thistoken) |
12392 | sv_catpvn(PL_thistoken, tokenstart, s - tokenstart); | |
5db06880 | 12393 | else |
cd81e915 NC |
12394 | PL_thistoken = newSVpvn(tokenstart, s - tokenstart); |
12395 | PL_thiswhite = savewhite; | |
5db06880 NC |
12396 | } |
12397 | #endif | |
79072805 | 12398 | return s; |
378cc40b | 12399 | } |
a687059c | 12400 | |
76e3520e | 12401 | STATIC void |
cea2e8a9 | 12402 | S_set_csh(pTHX) |
a687059c | 12403 | { |
ae986130 | 12404 | #ifdef CSH |
97aff369 | 12405 | dVAR; |
3280af22 NIS |
12406 | if (!PL_cshlen) |
12407 | PL_cshlen = strlen(PL_cshname); | |
5f66b61c | 12408 | #else |
b2675967 | 12409 | #if defined(USE_ITHREADS) |
96a5add6 | 12410 | PERL_UNUSED_CONTEXT; |
ae986130 | 12411 | #endif |
b2675967 | 12412 | #endif |
a687059c | 12413 | } |
463ee0b2 | 12414 | |
ba6d6ac9 | 12415 | I32 |
864dbfa3 | 12416 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 12417 | { |
97aff369 | 12418 | dVAR; |
a3b680e6 | 12419 | const I32 oldsavestack_ix = PL_savestack_ix; |
6136c704 | 12420 | CV* const outsidecv = PL_compcv; |
8990e307 | 12421 | |
3280af22 NIS |
12422 | if (PL_compcv) { |
12423 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 12424 | } |
7766f137 | 12425 | SAVEI32(PL_subline); |
3280af22 | 12426 | save_item(PL_subname); |
3280af22 | 12427 | SAVESPTR(PL_compcv); |
3280af22 | 12428 | |
b9f83d2f | 12429 | PL_compcv = (CV*)newSV_type(is_format ? SVt_PVFM : SVt_PVCV); |
3280af22 NIS |
12430 | CvFLAGS(PL_compcv) |= flags; |
12431 | ||
57843af0 | 12432 | PL_subline = CopLINE(PL_curcop); |
dd2155a4 | 12433 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
b37c2d43 | 12434 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc_simple(outsidecv); |
a3985cdc | 12435 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
748a9306 | 12436 | |
8990e307 LW |
12437 | return oldsavestack_ix; |
12438 | } | |
12439 | ||
084592ab CN |
12440 | #ifdef __SC__ |
12441 | #pragma segment Perl_yylex | |
12442 | #endif | |
8990e307 | 12443 | int |
bfed75c6 | 12444 | Perl_yywarn(pTHX_ const char *s) |
8990e307 | 12445 | { |
97aff369 | 12446 | dVAR; |
faef0170 | 12447 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 12448 | yyerror(s); |
faef0170 | 12449 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 12450 | return 0; |
8990e307 LW |
12451 | } |
12452 | ||
12453 | int | |
bfed75c6 | 12454 | Perl_yyerror(pTHX_ const char *s) |
463ee0b2 | 12455 | { |
97aff369 | 12456 | dVAR; |
bfed75c6 AL |
12457 | const char *where = NULL; |
12458 | const char *context = NULL; | |
68dc0745 | 12459 | int contlen = -1; |
46fc3d4c | 12460 | SV *msg; |
5912531f | 12461 | int yychar = PL_parser->yychar; |
463ee0b2 | 12462 | |
3280af22 | 12463 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 12464 | where = "at EOF"; |
8bcfe651 TM |
12465 | else if (PL_oldoldbufptr && PL_bufptr > PL_oldoldbufptr && |
12466 | PL_bufptr - PL_oldoldbufptr < 200 && PL_oldoldbufptr != PL_oldbufptr && | |
12467 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12468 | /* |
12469 | Only for NetWare: | |
12470 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12471 | when the script has error such as not having the closing quotes like: | |
12472 | if ($var eq "value) | |
12473 | Checking of white spaces is anyway done in NetWare code. | |
12474 | */ | |
12475 | #ifndef NETWARE | |
3280af22 NIS |
12476 | while (isSPACE(*PL_oldoldbufptr)) |
12477 | PL_oldoldbufptr++; | |
f355267c | 12478 | #endif |
3280af22 NIS |
12479 | context = PL_oldoldbufptr; |
12480 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 12481 | } |
8bcfe651 TM |
12482 | else if (PL_oldbufptr && PL_bufptr > PL_oldbufptr && |
12483 | PL_bufptr - PL_oldbufptr < 200 && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12484 | /* |
12485 | Only for NetWare: | |
12486 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12487 | when the script has error such as not having the closing quotes like: | |
12488 | if ($var eq "value) | |
12489 | Checking of white spaces is anyway done in NetWare code. | |
12490 | */ | |
12491 | #ifndef NETWARE | |
3280af22 NIS |
12492 | while (isSPACE(*PL_oldbufptr)) |
12493 | PL_oldbufptr++; | |
f355267c | 12494 | #endif |
3280af22 NIS |
12495 | context = PL_oldbufptr; |
12496 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
12497 | } |
12498 | else if (yychar > 255) | |
68dc0745 | 12499 | where = "next token ???"; |
12fbd33b | 12500 | else if (yychar == -2) { /* YYEMPTY */ |
3280af22 NIS |
12501 | if (PL_lex_state == LEX_NORMAL || |
12502 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 12503 | where = "at end of line"; |
3280af22 | 12504 | else if (PL_lex_inpat) |
68dc0745 | 12505 | where = "within pattern"; |
463ee0b2 | 12506 | else |
68dc0745 | 12507 | where = "within string"; |
463ee0b2 | 12508 | } |
46fc3d4c | 12509 | else { |
6136c704 | 12510 | SV * const where_sv = sv_2mortal(newSVpvs("next char ")); |
46fc3d4c | 12511 | if (yychar < 32) |
cea2e8a9 | 12512 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
5e7aa789 NC |
12513 | else if (isPRINT_LC(yychar)) { |
12514 | const unsigned char string = (unsigned char) yychar; | |
12515 | sv_catpvn(where_sv, &string, 1); | |
12516 | } | |
463ee0b2 | 12517 | else |
cea2e8a9 | 12518 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
95a20fc0 | 12519 | where = SvPVX_const(where_sv); |
463ee0b2 | 12520 | } |
46fc3d4c | 12521 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 12522 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 12523 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 12524 | if (context) |
cea2e8a9 | 12525 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 12526 | else |
cea2e8a9 | 12527 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 12528 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 12529 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 12530 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 12531 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 12532 | PL_multi_end = 0; |
a0d0e21e | 12533 | } |
500960a6 RD |
12534 | if (PL_in_eval & EVAL_WARNONLY) { |
12535 | if (ckWARN_d(WARN_SYNTAX)) | |
12536 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, SVfARG(msg)); | |
12537 | } | |
463ee0b2 | 12538 | else |
5a844595 | 12539 | qerror(msg); |
c7d6bfb2 GS |
12540 | if (PL_error_count >= 10) { |
12541 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 12542 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
be2597df | 12543 | SVfARG(ERRSV), OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
12544 | else |
12545 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 12546 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 12547 | } |
3280af22 | 12548 | PL_in_my = 0; |
5c284bb0 | 12549 | PL_in_my_stash = NULL; |
463ee0b2 LW |
12550 | return 0; |
12551 | } | |
084592ab CN |
12552 | #ifdef __SC__ |
12553 | #pragma segment Main | |
12554 | #endif | |
4e35701f | 12555 | |
b250498f | 12556 | STATIC char* |
3ae08724 | 12557 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 12558 | { |
97aff369 | 12559 | dVAR; |
f54cb97a | 12560 | const STRLEN slen = SvCUR(PL_linestr); |
7aa207d6 | 12561 | switch (s[0]) { |
4e553d73 NIS |
12562 | case 0xFF: |
12563 | if (s[1] == 0xFE) { | |
7aa207d6 | 12564 | /* UTF-16 little-endian? (or UTF32-LE?) */ |
3ae08724 | 12565 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
7aa207d6 | 12566 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-LE"); |
01ec43d0 | 12567 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12568 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF16-LE script encoding (BOM)\n"); |
3ae08724 | 12569 | s += 2; |
7aa207d6 | 12570 | utf16le: |
dea0fc0b JH |
12571 | if (PL_bufend > (char*)s) { |
12572 | U8 *news; | |
12573 | I32 newlen; | |
12574 | ||
12575 | filter_add(utf16rev_textfilter, NULL); | |
a02a5408 | 12576 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd | 12577 | utf16_to_utf8_reversed(s, news, |
aed58286 | 12578 | PL_bufend - (char*)s - 1, |
1de9afcd | 12579 | &newlen); |
7aa207d6 | 12580 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
5db06880 NC |
12581 | #ifdef PERL_MAD |
12582 | s = (U8*)SvPVX(PL_linestr); | |
12583 | Copy(news, s, newlen, U8); | |
12584 | s[newlen] = '\0'; | |
12585 | #endif | |
dea0fc0b | 12586 | Safefree(news); |
7aa207d6 JH |
12587 | SvUTF8_on(PL_linestr); |
12588 | s = (U8*)SvPVX(PL_linestr); | |
5db06880 NC |
12589 | #ifdef PERL_MAD |
12590 | /* FIXME - is this a general bug fix? */ | |
12591 | s[newlen] = '\0'; | |
12592 | #endif | |
7aa207d6 | 12593 | PL_bufend = SvPVX(PL_linestr) + newlen; |
dea0fc0b | 12594 | } |
b250498f | 12595 | #else |
7aa207d6 | 12596 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-LE"); |
b250498f | 12597 | #endif |
01ec43d0 GS |
12598 | } |
12599 | break; | |
78ae23f5 | 12600 | case 0xFE: |
7aa207d6 | 12601 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 12602 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12603 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b | 12604 | s += 2; |
7aa207d6 | 12605 | utf16be: |
dea0fc0b JH |
12606 | if (PL_bufend > (char *)s) { |
12607 | U8 *news; | |
12608 | I32 newlen; | |
12609 | ||
12610 | filter_add(utf16_textfilter, NULL); | |
a02a5408 | 12611 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd RGS |
12612 | utf16_to_utf8(s, news, |
12613 | PL_bufend - (char*)s, | |
12614 | &newlen); | |
7aa207d6 | 12615 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
dea0fc0b | 12616 | Safefree(news); |
7aa207d6 JH |
12617 | SvUTF8_on(PL_linestr); |
12618 | s = (U8*)SvPVX(PL_linestr); | |
12619 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
dea0fc0b | 12620 | } |
b250498f | 12621 | #else |
7aa207d6 | 12622 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-BE"); |
b250498f | 12623 | #endif |
01ec43d0 GS |
12624 | } |
12625 | break; | |
3ae08724 GS |
12626 | case 0xEF: |
12627 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
7aa207d6 | 12628 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
12629 | s += 3; /* UTF-8 */ |
12630 | } | |
12631 | break; | |
12632 | case 0: | |
7aa207d6 JH |
12633 | if (slen > 3) { |
12634 | if (s[1] == 0) { | |
12635 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
12636 | /* UTF-32 big-endian */ | |
12637 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-BE"); | |
12638 | } | |
12639 | } | |
12640 | else if (s[2] == 0 && s[3] != 0) { | |
12641 | /* Leading bytes | |
12642 | * 00 xx 00 xx | |
12643 | * are a good indicator of UTF-16BE. */ | |
12644 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); | |
12645 | goto utf16be; | |
12646 | } | |
01ec43d0 | 12647 | } |
e294cc5d JH |
12648 | #ifdef EBCDIC |
12649 | case 0xDD: | |
12650 | if (slen > 3 && s[1] == 0x73 && s[2] == 0x66 && s[3] == 0x73) { | |
12651 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); | |
12652 | s += 4; /* UTF-8 */ | |
12653 | } | |
12654 | break; | |
12655 | #endif | |
12656 | ||
7aa207d6 JH |
12657 | default: |
12658 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
12659 | /* Leading bytes | |
12660 | * xx 00 xx 00 | |
12661 | * are a good indicator of UTF-16LE. */ | |
12662 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); | |
12663 | goto utf16le; | |
12664 | } | |
01ec43d0 | 12665 | } |
b8f84bb2 | 12666 | return (char*)s; |
b250498f | 12667 | } |
4755096e | 12668 | |
6e3aabd6 GS |
12669 | |
12670 | #ifndef PERL_NO_UTF16_FILTER | |
12671 | static I32 | |
acfe0abc | 12672 | utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12673 | { |
97aff369 | 12674 | dVAR; |
f54cb97a AL |
12675 | const STRLEN old = SvCUR(sv); |
12676 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12677 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12678 | "utf16_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12679 | FPTR2DPTR(void *, utf16_textfilter), |
12680 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12681 | if (count) { |
12682 | U8* tmps; | |
dea0fc0b | 12683 | I32 newlen; |
a02a5408 | 12684 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12685 | Copy(SvPVX_const(sv), tmps, old, char); |
12686 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12687 | SvCUR(sv) - old, &newlen); |
12688 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12689 | } |
1de9afcd RGS |
12690 | DEBUG_P({sv_dump(sv);}); |
12691 | return SvCUR(sv); | |
6e3aabd6 GS |
12692 | } |
12693 | ||
12694 | static I32 | |
acfe0abc | 12695 | utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12696 | { |
97aff369 | 12697 | dVAR; |
f54cb97a AL |
12698 | const STRLEN old = SvCUR(sv); |
12699 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12700 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12701 | "utf16rev_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12702 | FPTR2DPTR(void *, utf16rev_textfilter), |
12703 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12704 | if (count) { |
12705 | U8* tmps; | |
dea0fc0b | 12706 | I32 newlen; |
a02a5408 | 12707 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12708 | Copy(SvPVX_const(sv), tmps, old, char); |
12709 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12710 | SvCUR(sv) - old, &newlen); |
12711 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12712 | } |
1de9afcd | 12713 | DEBUG_P({ sv_dump(sv); }); |
6e3aabd6 GS |
12714 | return count; |
12715 | } | |
12716 | #endif | |
9f4817db | 12717 | |
f333445c JP |
12718 | /* |
12719 | Returns a pointer to the next character after the parsed | |
12720 | vstring, as well as updating the passed in sv. | |
12721 | ||
12722 | Function must be called like | |
12723 | ||
561b68a9 | 12724 | sv = newSV(5); |
65b06e02 | 12725 | s = scan_vstring(s,e,sv); |
f333445c | 12726 | |
65b06e02 | 12727 | where s and e are the start and end of the string. |
f333445c JP |
12728 | The sv should already be large enough to store the vstring |
12729 | passed in, for performance reasons. | |
12730 | ||
12731 | */ | |
12732 | ||
12733 | char * | |
65b06e02 | 12734 | Perl_scan_vstring(pTHX_ const char *s, const char *e, SV *sv) |
f333445c | 12735 | { |
97aff369 | 12736 | dVAR; |
bfed75c6 AL |
12737 | const char *pos = s; |
12738 | const char *start = s; | |
f333445c | 12739 | if (*pos == 'v') pos++; /* get past 'v' */ |
65b06e02 | 12740 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
3e884cbf | 12741 | pos++; |
f333445c JP |
12742 | if ( *pos != '.') { |
12743 | /* this may not be a v-string if followed by => */ | |
bfed75c6 | 12744 | const char *next = pos; |
65b06e02 | 12745 | while (next < e && isSPACE(*next)) |
8fc7bb1c | 12746 | ++next; |
65b06e02 | 12747 | if ((e - next) >= 2 && *next == '=' && next[1] == '>' ) { |
f333445c JP |
12748 | /* return string not v-string */ |
12749 | sv_setpvn(sv,(char *)s,pos-s); | |
73d840c0 | 12750 | return (char *)pos; |
f333445c JP |
12751 | } |
12752 | } | |
12753 | ||
12754 | if (!isALPHA(*pos)) { | |
89ebb4a3 | 12755 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
f333445c | 12756 | |
d4c19fe8 AL |
12757 | if (*s == 'v') |
12758 | s++; /* get past 'v' */ | |
f333445c JP |
12759 | |
12760 | sv_setpvn(sv, "", 0); | |
12761 | ||
12762 | for (;;) { | |
d4c19fe8 | 12763 | /* this is atoi() that tolerates underscores */ |
0bd48802 AL |
12764 | U8 *tmpend; |
12765 | UV rev = 0; | |
d4c19fe8 AL |
12766 | const char *end = pos; |
12767 | UV mult = 1; | |
12768 | while (--end >= s) { | |
12769 | if (*end != '_') { | |
12770 | const UV orev = rev; | |
f333445c JP |
12771 | rev += (*end - '0') * mult; |
12772 | mult *= 10; | |
12773 | if (orev > rev && ckWARN_d(WARN_OVERFLOW)) | |
12774 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), | |
12775 | "Integer overflow in decimal number"); | |
12776 | } | |
12777 | } | |
12778 | #ifdef EBCDIC | |
12779 | if (rev > 0x7FFFFFFF) | |
12780 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
12781 | #endif | |
12782 | /* Append native character for the rev point */ | |
12783 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
12784 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
12785 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
12786 | SvUTF8_on(sv); | |
65b06e02 | 12787 | if (pos + 1 < e && *pos == '.' && isDIGIT(pos[1])) |
f333445c JP |
12788 | s = ++pos; |
12789 | else { | |
12790 | s = pos; | |
12791 | break; | |
12792 | } | |
65b06e02 | 12793 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
f333445c JP |
12794 | pos++; |
12795 | } | |
12796 | SvPOK_on(sv); | |
12797 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
12798 | SvRMAGICAL_on(sv); | |
12799 | } | |
73d840c0 | 12800 | return (char *)s; |
f333445c JP |
12801 | } |
12802 | ||
1da4ca5f NC |
12803 | /* |
12804 | * Local variables: | |
12805 | * c-indentation-style: bsd | |
12806 | * c-basic-offset: 4 | |
12807 | * indent-tabs-mode: t | |
12808 | * End: | |
12809 | * | |
37442d52 RGS |
12810 | * ex: set ts=8 sts=4 sw=4 noet: |
12811 | */ |