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; |
cea2e8a9 | 3564 | Perl_croak(aTHX_ "Unrecognized character \\x%02X", *s & 255); |
e929a76b LW |
3565 | case 4: |
3566 | case 26: | |
3567 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 3568 | case 0: |
5db06880 NC |
3569 | #ifdef PERL_MAD |
3570 | if (PL_madskills) | |
cd81e915 | 3571 | PL_faketokens = 0; |
5db06880 | 3572 | #endif |
3280af22 NIS |
3573 | if (!PL_rsfp) { |
3574 | PL_last_uni = 0; | |
3575 | PL_last_lop = 0; | |
c5ee2135 | 3576 | if (PL_lex_brackets) { |
10edeb5d JH |
3577 | yyerror((const char *) |
3578 | (PL_lex_formbrack | |
3579 | ? "Format not terminated" | |
3580 | : "Missing right curly or square bracket")); | |
c5ee2135 | 3581 | } |
4e553d73 | 3582 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 3583 | "### Tokener got EOF\n"); |
5f80b19c | 3584 | } ); |
79072805 | 3585 | TOKEN(0); |
463ee0b2 | 3586 | } |
3280af22 | 3587 | if (s++ < PL_bufend) |
a687059c | 3588 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
3589 | PL_last_uni = 0; |
3590 | PL_last_lop = 0; | |
3591 | if (!PL_in_eval && !PL_preambled) { | |
3592 | PL_preambled = TRUE; | |
5db06880 NC |
3593 | #ifdef PERL_MAD |
3594 | if (PL_madskills) | |
cd81e915 | 3595 | PL_faketokens = 1; |
5db06880 | 3596 | #endif |
3280af22 NIS |
3597 | sv_setpv(PL_linestr,incl_perldb()); |
3598 | if (SvCUR(PL_linestr)) | |
396482e1 | 3599 | sv_catpvs(PL_linestr,";"); |
3280af22 NIS |
3600 | if (PL_preambleav){ |
3601 | while(AvFILLp(PL_preambleav) >= 0) { | |
3602 | SV *tmpsv = av_shift(PL_preambleav); | |
3603 | sv_catsv(PL_linestr, tmpsv); | |
396482e1 | 3604 | sv_catpvs(PL_linestr, ";"); |
91b7def8 | 3605 | sv_free(tmpsv); |
3606 | } | |
3280af22 NIS |
3607 | sv_free((SV*)PL_preambleav); |
3608 | PL_preambleav = NULL; | |
91b7def8 | 3609 | } |
3280af22 | 3610 | if (PL_minus_n || PL_minus_p) { |
396482e1 | 3611 | sv_catpvs(PL_linestr, "LINE: while (<>) {"); |
3280af22 | 3612 | if (PL_minus_l) |
396482e1 | 3613 | sv_catpvs(PL_linestr,"chomp;"); |
3280af22 | 3614 | if (PL_minus_a) { |
3280af22 | 3615 | if (PL_minus_F) { |
3792a11b NC |
3616 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
3617 | || *PL_splitstr == '"') | |
3280af22 | 3618 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 3619 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 3620 | else { |
c8ef6a4b NC |
3621 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
3622 | bytes can be used as quoting characters. :-) */ | |
dd374669 | 3623 | const char *splits = PL_splitstr; |
91d456ae | 3624 | sv_catpvs(PL_linestr, "our @F=split(q\0"); |
48c4c863 NC |
3625 | do { |
3626 | /* Need to \ \s */ | |
dd374669 AL |
3627 | if (*splits == '\\') |
3628 | sv_catpvn(PL_linestr, splits, 1); | |
3629 | sv_catpvn(PL_linestr, splits, 1); | |
3630 | } while (*splits++); | |
48c4c863 NC |
3631 | /* This loop will embed the trailing NUL of |
3632 | PL_linestr as the last thing it does before | |
3633 | terminating. */ | |
396482e1 | 3634 | sv_catpvs(PL_linestr, ");"); |
54310121 | 3635 | } |
2304df62 AD |
3636 | } |
3637 | else | |
396482e1 | 3638 | sv_catpvs(PL_linestr,"our @F=split(' ');"); |
2304df62 | 3639 | } |
79072805 | 3640 | } |
bc9b29db | 3641 | if (PL_minus_E) |
396482e1 GA |
3642 | sv_catpvs(PL_linestr,"use feature ':5.10';"); |
3643 | sv_catpvs(PL_linestr, "\n"); | |
3280af22 NIS |
3644 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3645 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3646 | PL_last_lop = PL_last_uni = NULL; |
80a702cd | 3647 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 3648 | update_debugger_info(PL_linestr, NULL, 0); |
79072805 | 3649 | goto retry; |
a687059c | 3650 | } |
e929a76b | 3651 | do { |
aa7440fb | 3652 | bof = PL_rsfp ? TRUE : FALSE; |
bd61b366 | 3653 | if ((s = filter_gets(PL_linestr, PL_rsfp, 0)) == NULL) { |
7e28d3af | 3654 | fake_eof: |
5db06880 | 3655 | #ifdef PERL_MAD |
cd81e915 | 3656 | PL_realtokenstart = -1; |
5db06880 | 3657 | #endif |
7e28d3af JH |
3658 | if (PL_rsfp) { |
3659 | if (PL_preprocess && !PL_in_eval) | |
3660 | (void)PerlProc_pclose(PL_rsfp); | |
3661 | else if ((PerlIO *)PL_rsfp == PerlIO_stdin()) | |
3662 | PerlIO_clearerr(PL_rsfp); | |
3663 | else | |
3664 | (void)PerlIO_close(PL_rsfp); | |
4608196e | 3665 | PL_rsfp = NULL; |
7e28d3af JH |
3666 | PL_doextract = FALSE; |
3667 | } | |
3668 | if (!PL_in_eval && (PL_minus_n || PL_minus_p)) { | |
5db06880 NC |
3669 | #ifdef PERL_MAD |
3670 | if (PL_madskills) | |
cd81e915 | 3671 | PL_faketokens = 1; |
5db06880 | 3672 | #endif |
10edeb5d JH |
3673 | sv_setpv(PL_linestr, |
3674 | (const char *) | |
3675 | (PL_minus_p | |
3676 | ? ";}continue{print;}" : ";}")); | |
7e28d3af JH |
3677 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3678 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3679 | PL_last_lop = PL_last_uni = NULL; |
7e28d3af JH |
3680 | PL_minus_n = PL_minus_p = 0; |
3681 | goto retry; | |
3682 | } | |
3683 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
bd61b366 | 3684 | PL_last_lop = PL_last_uni = NULL; |
c69006e4 | 3685 | sv_setpvn(PL_linestr,"",0); |
7e28d3af JH |
3686 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ |
3687 | } | |
7aa207d6 JH |
3688 | /* If it looks like the start of a BOM or raw UTF-16, |
3689 | * check if it in fact is. */ | |
3690 | else if (bof && | |
3691 | (*s == 0 || | |
3692 | *(U8*)s == 0xEF || | |
3693 | *(U8*)s >= 0xFE || | |
3694 | s[1] == 0)) { | |
226017aa | 3695 | #ifdef PERLIO_IS_STDIO |
e3f494f1 JH |
3696 | # ifdef __GNU_LIBRARY__ |
3697 | # if __GNU_LIBRARY__ == 1 /* Linux glibc5 */ | |
226017aa DD |
3698 | # define FTELL_FOR_PIPE_IS_BROKEN |
3699 | # endif | |
e3f494f1 JH |
3700 | # else |
3701 | # ifdef __GLIBC__ | |
3702 | # if __GLIBC__ == 1 /* maybe some glibc5 release had it like this? */ | |
3703 | # define FTELL_FOR_PIPE_IS_BROKEN | |
3704 | # endif | |
3705 | # endif | |
226017aa DD |
3706 | # endif |
3707 | #endif | |
3708 | #ifdef FTELL_FOR_PIPE_IS_BROKEN | |
3709 | /* This loses the possibility to detect the bof | |
3710 | * situation on perl -P when the libc5 is being used. | |
3711 | * Workaround? Maybe attach some extra state to PL_rsfp? | |
3712 | */ | |
3713 | if (!PL_preprocess) | |
7e28d3af | 3714 | bof = PerlIO_tell(PL_rsfp) == SvCUR(PL_linestr); |
226017aa | 3715 | #else |
eb160463 | 3716 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
226017aa | 3717 | #endif |
7e28d3af | 3718 | if (bof) { |
3280af22 | 3719 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 3720 | s = swallow_bom((U8*)s); |
e929a76b | 3721 | } |
378cc40b | 3722 | } |
3280af22 | 3723 | if (PL_doextract) { |
a0d0e21e | 3724 | /* Incest with pod. */ |
5db06880 NC |
3725 | #ifdef PERL_MAD |
3726 | if (PL_madskills) | |
cd81e915 | 3727 | sv_catsv(PL_thiswhite, PL_linestr); |
5db06880 | 3728 | #endif |
01a57ef7 | 3729 | if (*s == '=' && strnEQ(s, "=cut", 4) && !isALPHA(s[4])) { |
c69006e4 | 3730 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3731 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3732 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3733 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3734 | PL_doextract = FALSE; |
a0d0e21e | 3735 | } |
4e553d73 | 3736 | } |
463ee0b2 | 3737 | incline(s); |
3280af22 NIS |
3738 | } while (PL_doextract); |
3739 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
80a702cd | 3740 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 3741 | update_debugger_info(PL_linestr, NULL, 0); |
3280af22 | 3742 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 3743 | PL_last_lop = PL_last_uni = NULL; |
57843af0 | 3744 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 3745 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 3746 | s++; |
a0d0e21e | 3747 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 3748 | s++; |
5db06880 NC |
3749 | #ifdef PERL_MAD |
3750 | if (PL_madskills) | |
cd81e915 | 3751 | PL_thiswhite = newSVpvn(PL_linestart, s - PL_linestart); |
5db06880 | 3752 | #endif |
bd61b366 | 3753 | d = NULL; |
3280af22 | 3754 | if (!PL_in_eval) { |
44a8e56a | 3755 | if (*s == '#' && *(s+1) == '!') |
3756 | d = s + 2; | |
3757 | #ifdef ALTERNATE_SHEBANG | |
3758 | else { | |
bfed75c6 | 3759 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 3760 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
3761 | d = s + (sizeof(as) - 1); | |
3762 | } | |
3763 | #endif /* ALTERNATE_SHEBANG */ | |
3764 | } | |
3765 | if (d) { | |
b8378b72 | 3766 | char *ipath; |
774d564b | 3767 | char *ipathend; |
b8378b72 | 3768 | |
774d564b | 3769 | while (isSPACE(*d)) |
b8378b72 CS |
3770 | d++; |
3771 | ipath = d; | |
774d564b | 3772 | while (*d && !isSPACE(*d)) |
3773 | d++; | |
3774 | ipathend = d; | |
3775 | ||
3776 | #ifdef ARG_ZERO_IS_SCRIPT | |
3777 | if (ipathend > ipath) { | |
3778 | /* | |
3779 | * HP-UX (at least) sets argv[0] to the script name, | |
3780 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
3781 | * at least, set argv[0] to the basename of the Perl | |
3782 | * interpreter. So, having found "#!", we'll set it right. | |
3783 | */ | |
fafc274c NC |
3784 | SV * const x = GvSV(gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, |
3785 | SVt_PV)); /* $^X */ | |
774d564b | 3786 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 3787 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 3788 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 3789 | SvSETMAGIC(x); |
3790 | } | |
556c1dec JH |
3791 | else { |
3792 | STRLEN blen; | |
3793 | STRLEN llen; | |
cfd0369c | 3794 | const char *bstart = SvPV_const(CopFILESV(PL_curcop),blen); |
9d4ba2ae | 3795 | const char * const lstart = SvPV_const(x,llen); |
556c1dec JH |
3796 | if (llen < blen) { |
3797 | bstart += blen - llen; | |
3798 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
3799 | sv_setpvn(x, ipath, ipathend - ipath); | |
3800 | SvSETMAGIC(x); | |
3801 | } | |
3802 | } | |
3803 | } | |
774d564b | 3804 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 3805 | } |
774d564b | 3806 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
3807 | |
3808 | /* | |
3809 | * Look for options. | |
3810 | */ | |
748a9306 | 3811 | d = instr(s,"perl -"); |
84e30d1a | 3812 | if (!d) { |
748a9306 | 3813 | d = instr(s,"perl"); |
84e30d1a GS |
3814 | #if defined(DOSISH) |
3815 | /* avoid getting into infinite loops when shebang | |
3816 | * line contains "Perl" rather than "perl" */ | |
3817 | if (!d) { | |
3818 | for (d = ipathend-4; d >= ipath; --d) { | |
3819 | if ((*d == 'p' || *d == 'P') | |
3820 | && !ibcmp(d, "perl", 4)) | |
3821 | { | |
3822 | break; | |
3823 | } | |
3824 | } | |
3825 | if (d < ipath) | |
bd61b366 | 3826 | d = NULL; |
84e30d1a GS |
3827 | } |
3828 | #endif | |
3829 | } | |
44a8e56a | 3830 | #ifdef ALTERNATE_SHEBANG |
3831 | /* | |
3832 | * If the ALTERNATE_SHEBANG on this system starts with a | |
3833 | * character that can be part of a Perl expression, then if | |
3834 | * we see it but not "perl", we're probably looking at the | |
3835 | * start of Perl code, not a request to hand off to some | |
3836 | * other interpreter. Similarly, if "perl" is there, but | |
3837 | * not in the first 'word' of the line, we assume the line | |
3838 | * contains the start of the Perl program. | |
44a8e56a | 3839 | */ |
3840 | if (d && *s != '#') { | |
f54cb97a | 3841 | const char *c = ipath; |
44a8e56a | 3842 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
3843 | c++; | |
3844 | if (c < d) | |
bd61b366 | 3845 | d = NULL; /* "perl" not in first word; ignore */ |
44a8e56a | 3846 | else |
3847 | *s = '#'; /* Don't try to parse shebang line */ | |
3848 | } | |
774d564b | 3849 | #endif /* ALTERNATE_SHEBANG */ |
bf4acbe4 | 3850 | #ifndef MACOS_TRADITIONAL |
748a9306 | 3851 | if (!d && |
44a8e56a | 3852 | *s == '#' && |
774d564b | 3853 | ipathend > ipath && |
3280af22 | 3854 | !PL_minus_c && |
748a9306 | 3855 | !instr(s,"indir") && |
3280af22 | 3856 | instr(PL_origargv[0],"perl")) |
748a9306 | 3857 | { |
27da23d5 | 3858 | dVAR; |
9f68db38 | 3859 | char **newargv; |
9f68db38 | 3860 | |
774d564b | 3861 | *ipathend = '\0'; |
3862 | s = ipathend + 1; | |
3280af22 | 3863 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 3864 | s++; |
3280af22 | 3865 | if (s < PL_bufend) { |
a02a5408 | 3866 | Newxz(newargv,PL_origargc+3,char*); |
9f68db38 | 3867 | newargv[1] = s; |
3280af22 | 3868 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
3869 | s++; |
3870 | *s = '\0'; | |
3280af22 | 3871 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
3872 | } |
3873 | else | |
3280af22 | 3874 | newargv = PL_origargv; |
774d564b | 3875 | newargv[0] = ipath; |
b35112e7 | 3876 | PERL_FPU_PRE_EXEC |
b4748376 | 3877 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
b35112e7 | 3878 | PERL_FPU_POST_EXEC |
cea2e8a9 | 3879 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 3880 | } |
bf4acbe4 | 3881 | #endif |
748a9306 | 3882 | if (d) { |
c35e046a AL |
3883 | while (*d && !isSPACE(*d)) |
3884 | d++; | |
3885 | while (SPACE_OR_TAB(*d)) | |
3886 | d++; | |
748a9306 LW |
3887 | |
3888 | if (*d++ == '-') { | |
f54cb97a | 3889 | const bool switches_done = PL_doswitches; |
fb993905 GA |
3890 | const U32 oldpdb = PL_perldb; |
3891 | const bool oldn = PL_minus_n; | |
3892 | const bool oldp = PL_minus_p; | |
3893 | ||
8cc95fdb | 3894 | do { |
3ffe3ee4 | 3895 | if (*d == 'M' || *d == 'm' || *d == 'C') { |
9d4ba2ae | 3896 | const char * const m = d; |
d4c19fe8 AL |
3897 | while (*d && !isSPACE(*d)) |
3898 | d++; | |
cea2e8a9 | 3899 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
8cc95fdb | 3900 | (int)(d - m), m); |
3901 | } | |
97bd5664 | 3902 | d = moreswitches(d); |
8cc95fdb | 3903 | } while (d); |
f0b2cf55 YST |
3904 | if (PL_doswitches && !switches_done) { |
3905 | int argc = PL_origargc; | |
3906 | char **argv = PL_origargv; | |
3907 | do { | |
3908 | argc--,argv++; | |
3909 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
3910 | init_argv_symbols(argc,argv); | |
3911 | } | |
155aba94 GS |
3912 | if ((PERLDB_LINE && !oldpdb) || |
3913 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) | |
b084f20b | 3914 | /* if we have already added "LINE: while (<>) {", |
3915 | we must not do it again */ | |
748a9306 | 3916 | { |
c69006e4 | 3917 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3918 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3919 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3920 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3921 | PL_preambled = FALSE; |
84902520 | 3922 | if (PERLDB_LINE) |
3280af22 | 3923 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
3924 | goto retry; |
3925 | } | |
a0d0e21e | 3926 | } |
79072805 | 3927 | } |
9f68db38 | 3928 | } |
79072805 | 3929 | } |
3280af22 NIS |
3930 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3931 | PL_bufptr = s; | |
3932 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3933 | return yylex(); |
ae986130 | 3934 | } |
378cc40b | 3935 | goto retry; |
4fdae800 | 3936 | case '\r': |
6a27c188 | 3937 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 3938 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 3939 | Perl_croak(aTHX_ |
cc507455 | 3940 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 3941 | #endif |
4fdae800 | 3942 | case ' ': case '\t': case '\f': case 013: |
bf4acbe4 GS |
3943 | #ifdef MACOS_TRADITIONAL |
3944 | case '\312': | |
3945 | #endif | |
5db06880 | 3946 | #ifdef PERL_MAD |
cd81e915 | 3947 | PL_realtokenstart = -1; |
ac372eb8 RD |
3948 | if (!PL_thiswhite) |
3949 | PL_thiswhite = newSVpvs(""); | |
3950 | sv_catpvn(PL_thiswhite, s, 1); | |
5db06880 | 3951 | #endif |
ac372eb8 | 3952 | s++; |
378cc40b | 3953 | goto retry; |
378cc40b | 3954 | case '#': |
e929a76b | 3955 | case '\n': |
5db06880 | 3956 | #ifdef PERL_MAD |
cd81e915 | 3957 | PL_realtokenstart = -1; |
5db06880 | 3958 | if (PL_madskills) |
cd81e915 | 3959 | PL_faketokens = 0; |
5db06880 | 3960 | #endif |
3280af22 | 3961 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
3962 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
3963 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
3964 | CopLINE_dec(PL_curcop); | |
3965 | incline(s); | |
3966 | } | |
5db06880 NC |
3967 | if (PL_madskills && !PL_lex_formbrack && !PL_in_eval) { |
3968 | s = SKIPSPACE0(s); | |
3969 | if (!PL_in_eval || PL_rsfp) | |
3970 | incline(s); | |
3971 | } | |
3972 | else { | |
3973 | d = s; | |
3974 | while (d < PL_bufend && *d != '\n') | |
3975 | d++; | |
3976 | if (d < PL_bufend) | |
3977 | d++; | |
3978 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
3979 | Perl_croak(aTHX_ "panic: input overflow"); | |
3980 | #ifdef PERL_MAD | |
3981 | if (PL_madskills) | |
cd81e915 | 3982 | PL_thiswhite = newSVpvn(s, d - s); |
5db06880 NC |
3983 | #endif |
3984 | s = d; | |
3985 | incline(s); | |
3986 | } | |
3280af22 NIS |
3987 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3988 | PL_bufptr = s; | |
3989 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3990 | return yylex(); |
a687059c | 3991 | } |
378cc40b | 3992 | } |
a687059c | 3993 | else { |
5db06880 NC |
3994 | #ifdef PERL_MAD |
3995 | if (PL_madskills && CopLINE(PL_curcop) >= 1 && !PL_lex_formbrack) { | |
3996 | if (CopLINE(PL_curcop) == 1 && s[0] == '#' && s[1] == '!') { | |
cd81e915 | 3997 | PL_faketokens = 0; |
5db06880 NC |
3998 | s = SKIPSPACE0(s); |
3999 | TOKEN(PEG); /* make sure any #! line is accessible */ | |
4000 | } | |
4001 | s = SKIPSPACE0(s); | |
4002 | } | |
4003 | else { | |
4004 | /* if (PL_madskills && PL_lex_formbrack) { */ | |
4005 | d = s; | |
4006 | while (d < PL_bufend && *d != '\n') | |
4007 | d++; | |
4008 | if (d < PL_bufend) | |
4009 | d++; | |
4010 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
4011 | Perl_croak(aTHX_ "panic: input overflow"); | |
4012 | if (PL_madskills && CopLINE(PL_curcop) >= 1) { | |
cd81e915 | 4013 | if (!PL_thiswhite) |
6b29d1f5 | 4014 | PL_thiswhite = newSVpvs(""); |
5db06880 | 4015 | if (CopLINE(PL_curcop) == 1) { |
cd81e915 NC |
4016 | sv_setpvn(PL_thiswhite, "", 0); |
4017 | PL_faketokens = 0; | |
5db06880 | 4018 | } |
cd81e915 | 4019 | sv_catpvn(PL_thiswhite, s, d - s); |
5db06880 NC |
4020 | } |
4021 | s = d; | |
4022 | /* } | |
4023 | *s = '\0'; | |
4024 | PL_bufend = s; */ | |
4025 | } | |
4026 | #else | |
378cc40b | 4027 | *s = '\0'; |
3280af22 | 4028 | PL_bufend = s; |
5db06880 | 4029 | #endif |
a687059c | 4030 | } |
378cc40b LW |
4031 | goto retry; |
4032 | case '-': | |
79072805 | 4033 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 | 4034 | I32 ftst = 0; |
90771dc0 | 4035 | char tmp; |
e5edeb50 | 4036 | |
378cc40b | 4037 | s++; |
3280af22 | 4038 | PL_bufptr = s; |
748a9306 LW |
4039 | tmp = *s++; |
4040 | ||
bf4acbe4 | 4041 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
4042 | s++; |
4043 | ||
4044 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 4045 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
931e0695 | 4046 | DEBUG_T( { printbuf("### Saw unary minus before =>, forcing word %s\n", s); } ); |
748a9306 LW |
4047 | OPERATOR('-'); /* unary minus */ |
4048 | } | |
3280af22 | 4049 | PL_last_uni = PL_oldbufptr; |
748a9306 | 4050 | switch (tmp) { |
e5edeb50 JH |
4051 | case 'r': ftst = OP_FTEREAD; break; |
4052 | case 'w': ftst = OP_FTEWRITE; break; | |
4053 | case 'x': ftst = OP_FTEEXEC; break; | |
4054 | case 'o': ftst = OP_FTEOWNED; break; | |
4055 | case 'R': ftst = OP_FTRREAD; break; | |
4056 | case 'W': ftst = OP_FTRWRITE; break; | |
4057 | case 'X': ftst = OP_FTREXEC; break; | |
4058 | case 'O': ftst = OP_FTROWNED; break; | |
4059 | case 'e': ftst = OP_FTIS; break; | |
4060 | case 'z': ftst = OP_FTZERO; break; | |
4061 | case 's': ftst = OP_FTSIZE; break; | |
4062 | case 'f': ftst = OP_FTFILE; break; | |
4063 | case 'd': ftst = OP_FTDIR; break; | |
4064 | case 'l': ftst = OP_FTLINK; break; | |
4065 | case 'p': ftst = OP_FTPIPE; break; | |
4066 | case 'S': ftst = OP_FTSOCK; break; | |
4067 | case 'u': ftst = OP_FTSUID; break; | |
4068 | case 'g': ftst = OP_FTSGID; break; | |
4069 | case 'k': ftst = OP_FTSVTX; break; | |
4070 | case 'b': ftst = OP_FTBLK; break; | |
4071 | case 'c': ftst = OP_FTCHR; break; | |
4072 | case 't': ftst = OP_FTTTY; break; | |
4073 | case 'T': ftst = OP_FTTEXT; break; | |
4074 | case 'B': ftst = OP_FTBINARY; break; | |
4075 | case 'M': case 'A': case 'C': | |
fafc274c | 4076 | gv_fetchpvs("\024", GV_ADD|GV_NOTQUAL, SVt_PV); |
e5edeb50 JH |
4077 | switch (tmp) { |
4078 | case 'M': ftst = OP_FTMTIME; break; | |
4079 | case 'A': ftst = OP_FTATIME; break; | |
4080 | case 'C': ftst = OP_FTCTIME; break; | |
4081 | default: break; | |
4082 | } | |
4083 | break; | |
378cc40b | 4084 | default: |
378cc40b LW |
4085 | break; |
4086 | } | |
e5edeb50 | 4087 | if (ftst) { |
eb160463 | 4088 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 4089 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a18d764d | 4090 | "### Saw file test %c\n", (int)tmp); |
5f80b19c | 4091 | } ); |
e5edeb50 JH |
4092 | FTST(ftst); |
4093 | } | |
4094 | else { | |
4095 | /* Assume it was a minus followed by a one-letter named | |
4096 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 4097 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
17ad61e0 | 4098 | "### '-%c' looked like a file test but was not\n", |
4fccd7c6 | 4099 | (int) tmp); |
5f80b19c | 4100 | } ); |
3cf7b4c4 | 4101 | s = --PL_bufptr; |
e5edeb50 | 4102 | } |
378cc40b | 4103 | } |
90771dc0 NC |
4104 | { |
4105 | const char tmp = *s++; | |
4106 | if (*s == tmp) { | |
4107 | s++; | |
4108 | if (PL_expect == XOPERATOR) | |
4109 | TERM(POSTDEC); | |
4110 | else | |
4111 | OPERATOR(PREDEC); | |
4112 | } | |
4113 | else if (*s == '>') { | |
4114 | s++; | |
29595ff2 | 4115 | s = SKIPSPACE1(s); |
90771dc0 NC |
4116 | if (isIDFIRST_lazy_if(s,UTF)) { |
4117 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); | |
4118 | TOKEN(ARROW); | |
4119 | } | |
4120 | else if (*s == '$') | |
4121 | OPERATOR(ARROW); | |
4122 | else | |
4123 | TERM(ARROW); | |
4124 | } | |
3280af22 | 4125 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4126 | Aop(OP_SUBTRACT); |
4127 | else { | |
4128 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4129 | check_uni(); | |
4130 | OPERATOR('-'); /* unary minus */ | |
79072805 | 4131 | } |
2f3197b3 | 4132 | } |
79072805 | 4133 | |
378cc40b | 4134 | case '+': |
90771dc0 NC |
4135 | { |
4136 | const char tmp = *s++; | |
4137 | if (*s == tmp) { | |
4138 | s++; | |
4139 | if (PL_expect == XOPERATOR) | |
4140 | TERM(POSTINC); | |
4141 | else | |
4142 | OPERATOR(PREINC); | |
4143 | } | |
3280af22 | 4144 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4145 | Aop(OP_ADD); |
4146 | else { | |
4147 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4148 | check_uni(); | |
4149 | OPERATOR('+'); | |
4150 | } | |
2f3197b3 | 4151 | } |
a687059c | 4152 | |
378cc40b | 4153 | case '*': |
3280af22 NIS |
4154 | if (PL_expect != XOPERATOR) { |
4155 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
4156 | PL_expect = XOPERATOR; | |
4157 | force_ident(PL_tokenbuf, '*'); | |
4158 | if (!*PL_tokenbuf) | |
a0d0e21e | 4159 | PREREF('*'); |
79072805 | 4160 | TERM('*'); |
a687059c | 4161 | } |
79072805 LW |
4162 | s++; |
4163 | if (*s == '*') { | |
a687059c | 4164 | s++; |
79072805 | 4165 | PWop(OP_POW); |
a687059c | 4166 | } |
79072805 LW |
4167 | Mop(OP_MULTIPLY); |
4168 | ||
378cc40b | 4169 | case '%': |
3280af22 | 4170 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 4171 | ++s; |
4172 | Mop(OP_MODULO); | |
a687059c | 4173 | } |
3280af22 | 4174 | PL_tokenbuf[0] = '%'; |
e8ae98db RGS |
4175 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
4176 | sizeof PL_tokenbuf - 1, FALSE); | |
3280af22 | 4177 | if (!PL_tokenbuf[1]) { |
bbce6d69 | 4178 | PREREF('%'); |
a687059c | 4179 | } |
3280af22 | 4180 | PL_pending_ident = '%'; |
bbce6d69 | 4181 | TERM('%'); |
a687059c | 4182 | |
378cc40b | 4183 | case '^': |
79072805 | 4184 | s++; |
a0d0e21e | 4185 | BOop(OP_BIT_XOR); |
79072805 | 4186 | case '[': |
3280af22 | 4187 | PL_lex_brackets++; |
79072805 | 4188 | /* FALL THROUGH */ |
378cc40b | 4189 | case '~': |
0d863452 | 4190 | if (s[1] == '~' |
3e7dd34d | 4191 | && (PL_expect == XOPERATOR || PL_expect == XTERMORDORDOR)) |
0d863452 RH |
4192 | { |
4193 | s += 2; | |
4194 | Eop(OP_SMARTMATCH); | |
4195 | } | |
378cc40b | 4196 | case ',': |
90771dc0 NC |
4197 | { |
4198 | const char tmp = *s++; | |
4199 | OPERATOR(tmp); | |
4200 | } | |
a0d0e21e LW |
4201 | case ':': |
4202 | if (s[1] == ':') { | |
4203 | len = 0; | |
0bfa2a8a | 4204 | goto just_a_word_zero_gv; |
a0d0e21e LW |
4205 | } |
4206 | s++; | |
09bef843 SB |
4207 | switch (PL_expect) { |
4208 | OP *attrs; | |
5db06880 NC |
4209 | #ifdef PERL_MAD |
4210 | I32 stuffstart; | |
4211 | #endif | |
09bef843 SB |
4212 | case XOPERATOR: |
4213 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
4214 | break; | |
4215 | PL_bufptr = s; /* update in case we back off */ | |
4216 | goto grabattrs; | |
4217 | case XATTRBLOCK: | |
4218 | PL_expect = XBLOCK; | |
4219 | goto grabattrs; | |
4220 | case XATTRTERM: | |
4221 | PL_expect = XTERMBLOCK; | |
4222 | grabattrs: | |
5db06880 NC |
4223 | #ifdef PERL_MAD |
4224 | stuffstart = s - SvPVX(PL_linestr) - 1; | |
4225 | #endif | |
29595ff2 | 4226 | s = PEEKSPACE(s); |
5f66b61c | 4227 | attrs = NULL; |
7e2040f0 | 4228 | while (isIDFIRST_lazy_if(s,UTF)) { |
90771dc0 | 4229 | I32 tmp; |
5cc237b8 | 4230 | SV *sv; |
09bef843 | 4231 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 4232 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len, 0))) { |
f9829d6b GS |
4233 | if (tmp < 0) tmp = -tmp; |
4234 | switch (tmp) { | |
4235 | case KEY_or: | |
4236 | case KEY_and: | |
c963b151 | 4237 | case KEY_err: |
f9829d6b GS |
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; |
5db06880 NC |
5433 | #ifdef PERL_MAD |
5434 | if (PL_madskills) { | |
cd81e915 NC |
5435 | char *par = SvPVX(PL_linestr) + PL_realtokenstart; |
5436 | sv_catpvn(PL_thistoken, par, s - par); | |
5437 | if (PL_nextwhite) { | |
5438 | sv_free(PL_nextwhite); | |
5439 | PL_nextwhite = 0; | |
5db06880 NC |
5440 | } |
5441 | } | |
36dee510 | 5442 | else |
5db06880 | 5443 | #endif |
36dee510 | 5444 | goto its_constant; |
96e4d5b1 | 5445 | } |
5446 | } | |
5db06880 NC |
5447 | #ifdef PERL_MAD |
5448 | if (PL_madskills) { | |
cd81e915 NC |
5449 | PL_nextwhite = PL_thiswhite; |
5450 | PL_thiswhite = 0; | |
5db06880 | 5451 | } |
cd81e915 | 5452 | start_force(PL_curforce); |
5db06880 | 5453 | #endif |
9ded7720 | 5454 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 5455 | PL_expect = XOPERATOR; |
5db06880 NC |
5456 | #ifdef PERL_MAD |
5457 | if (PL_madskills) { | |
cd81e915 NC |
5458 | PL_nextwhite = nextPL_nextwhite; |
5459 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5460 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5461 | } |
5462 | #endif | |
93a17b20 | 5463 | force_next(WORD); |
c07a80fd | 5464 | yylval.ival = 0; |
463ee0b2 | 5465 | TOKEN('&'); |
79072805 | 5466 | } |
93a17b20 | 5467 | |
a0d0e21e | 5468 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 5469 | |
62d55b22 | 5470 | if ((*s == '$' || *s == '{') && (!gv || !cv)) { |
3280af22 NIS |
5471 | PL_last_lop = PL_oldbufptr; |
5472 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 5473 | PREBLOCK(METHOD); |
463ee0b2 LW |
5474 | } |
5475 | ||
8990e307 LW |
5476 | /* If followed by a bareword, see if it looks like indir obj. */ |
5477 | ||
30fe34ed RGS |
5478 | if (!orig_keyword |
5479 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
62d55b22 | 5480 | && (tmp = intuit_method(s, gv, cv))) |
bbf60fe6 | 5481 | return REPORT(tmp); |
93a17b20 | 5482 | |
8990e307 LW |
5483 | /* Not a method, so call it a subroutine (if defined) */ |
5484 | ||
5069cc75 | 5485 | if (cv) { |
0453d815 | 5486 | if (lastchar == '-' && ckWARN_d(WARN_AMBIGUOUS)) |
9014280d | 5487 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5488 | "Ambiguous use of -%s resolved as -&%s()", |
3280af22 | 5489 | PL_tokenbuf, PL_tokenbuf); |
89bfa8cd | 5490 | /* Check for a constant sub */ |
36dee510 | 5491 | if ((sv = gv_const_sv(gv)) && !PL_madskills) { |
96e4d5b1 | 5492 | its_constant: |
5493 | SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv); | |
b37c2d43 | 5494 | ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc_simple(sv); |
96e4d5b1 | 5495 | yylval.opval->op_private = 0; |
5496 | TOKEN(WORD); | |
89bfa8cd | 5497 | } |
5498 | ||
a5f75d66 | 5499 | /* Resolve to GV now. */ |
62d55b22 | 5500 | if (SvTYPE(gv) != SVt_PVGV) { |
b3d904f3 | 5501 | gv = gv_fetchpv(PL_tokenbuf, 0, SVt_PVCV); |
62d55b22 NC |
5502 | assert (SvTYPE(gv) == SVt_PVGV); |
5503 | /* cv must have been some sort of placeholder, so | |
5504 | now needs replacing with a real code reference. */ | |
5505 | cv = GvCV(gv); | |
5506 | } | |
5507 | ||
a5f75d66 AD |
5508 | op_free(yylval.opval); |
5509 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
9675f7ac | 5510 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
7a52d87a | 5511 | PL_last_lop = PL_oldbufptr; |
bf848113 | 5512 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 | 5513 | /* Is there a prototype? */ |
5db06880 NC |
5514 | if ( |
5515 | #ifdef PERL_MAD | |
5516 | cv && | |
5517 | #endif | |
d9f2850e RGS |
5518 | SvPOK(cv)) |
5519 | { | |
5f66b61c AL |
5520 | STRLEN protolen; |
5521 | const char *proto = SvPV_const((SV*)cv, protolen); | |
5522 | if (!protolen) | |
4633a7c4 | 5523 | TERM(FUNC0SUB); |
8c28b960 | 5524 | if ((*proto == '$' || *proto == '_') && proto[1] == '\0') |
4633a7c4 | 5525 | OPERATOR(UNIOPSUB); |
0f5d0394 AE |
5526 | while (*proto == ';') |
5527 | proto++; | |
7a52d87a | 5528 | if (*proto == '&' && *s == '{') { |
10edeb5d JH |
5529 | sv_setpv(PL_subname, |
5530 | (const char *) | |
5531 | (PL_curstash ? | |
5532 | "__ANON__" : "__ANON__::__ANON__")); | |
4633a7c4 LW |
5533 | PREBLOCK(LSTOPSUB); |
5534 | } | |
a9ef352a | 5535 | } |
5db06880 NC |
5536 | #ifdef PERL_MAD |
5537 | { | |
5538 | if (PL_madskills) { | |
cd81e915 NC |
5539 | PL_nextwhite = PL_thiswhite; |
5540 | PL_thiswhite = 0; | |
5db06880 | 5541 | } |
cd81e915 | 5542 | start_force(PL_curforce); |
5db06880 NC |
5543 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
5544 | PL_expect = XTERM; | |
5545 | if (PL_madskills) { | |
cd81e915 NC |
5546 | PL_nextwhite = nextPL_nextwhite; |
5547 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5548 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5549 | } |
5550 | force_next(WORD); | |
5551 | TOKEN(NOAMP); | |
5552 | } | |
5553 | } | |
5554 | ||
5555 | /* Guess harder when madskills require "best effort". */ | |
5556 | if (PL_madskills && (!gv || !GvCVu(gv))) { | |
5557 | int probable_sub = 0; | |
5558 | if (strchr("\"'`$@%0123456789!*+{[<", *s)) | |
5559 | probable_sub = 1; | |
5560 | else if (isALPHA(*s)) { | |
5561 | char tmpbuf[1024]; | |
5562 | STRLEN tmplen; | |
5563 | d = s; | |
5564 | d = scan_word(d, tmpbuf, sizeof tmpbuf, TRUE, &tmplen); | |
5458a98a | 5565 | if (!keyword(tmpbuf, tmplen, 0)) |
5db06880 NC |
5566 | probable_sub = 1; |
5567 | else { | |
5568 | while (d < PL_bufend && isSPACE(*d)) | |
5569 | d++; | |
5570 | if (*d == '=' && d[1] == '>') | |
5571 | probable_sub = 1; | |
5572 | } | |
5573 | } | |
5574 | if (probable_sub) { | |
7a6d04f4 | 5575 | gv = gv_fetchpv(PL_tokenbuf, GV_ADD, SVt_PVCV); |
5db06880 NC |
5576 | op_free(yylval.opval); |
5577 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
5578 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; | |
5579 | PL_last_lop = PL_oldbufptr; | |
5580 | PL_last_lop_op = OP_ENTERSUB; | |
cd81e915 NC |
5581 | PL_nextwhite = PL_thiswhite; |
5582 | PL_thiswhite = 0; | |
5583 | start_force(PL_curforce); | |
5db06880 NC |
5584 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
5585 | PL_expect = XTERM; | |
cd81e915 NC |
5586 | PL_nextwhite = nextPL_nextwhite; |
5587 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5588 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5589 | force_next(WORD); |
5590 | TOKEN(NOAMP); | |
5591 | } | |
5592 | #else | |
9ded7720 | 5593 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 5594 | PL_expect = XTERM; |
8990e307 LW |
5595 | force_next(WORD); |
5596 | TOKEN(NOAMP); | |
5db06880 | 5597 | #endif |
8990e307 | 5598 | } |
748a9306 | 5599 | |
8990e307 LW |
5600 | /* Call it a bare word */ |
5601 | ||
5603f27d GS |
5602 | if (PL_hints & HINT_STRICT_SUBS) |
5603 | yylval.opval->op_private |= OPpCONST_STRICT; | |
5604 | else { | |
5605 | bareword: | |
041457d9 DM |
5606 | if (lastchar != '-') { |
5607 | if (ckWARN(WARN_RESERVED)) { | |
c35e046a AL |
5608 | d = PL_tokenbuf; |
5609 | while (isLOWER(*d)) | |
5610 | d++; | |
da51bb9b | 5611 | if (!*d && !gv_stashpv(PL_tokenbuf, 0)) |
9014280d | 5612 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
5613 | PL_tokenbuf); |
5614 | } | |
748a9306 LW |
5615 | } |
5616 | } | |
c3e0f903 GS |
5617 | |
5618 | safe_bareword: | |
3792a11b NC |
5619 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&') |
5620 | && ckWARN_d(WARN_AMBIGUOUS)) { | |
9014280d | 5621 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5622 | "Operator or semicolon missing before %c%s", |
3280af22 | 5623 | lastchar, PL_tokenbuf); |
9014280d | 5624 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5625 | "Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
5626 | lastchar, lastchar); |
5627 | } | |
93a17b20 | 5628 | TOKEN(WORD); |
79072805 | 5629 | } |
79072805 | 5630 | |
68dc0745 | 5631 | case KEY___FILE__: |
46fc3d4c | 5632 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 5633 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 5634 | TERM(THING); |
5635 | ||
79072805 | 5636 | case KEY___LINE__: |
cf2093f6 | 5637 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 5638 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 5639 | TERM(THING); |
68dc0745 | 5640 | |
5641 | case KEY___PACKAGE__: | |
5642 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, | |
3280af22 | 5643 | (PL_curstash |
5aaec2b4 | 5644 | ? newSVhek(HvNAME_HEK(PL_curstash)) |
3280af22 | 5645 | : &PL_sv_undef)); |
79072805 | 5646 | TERM(THING); |
79072805 | 5647 | |
e50aee73 | 5648 | case KEY___DATA__: |
79072805 LW |
5649 | case KEY___END__: { |
5650 | GV *gv; | |
3280af22 | 5651 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
bfed75c6 | 5652 | const char *pname = "main"; |
3280af22 | 5653 | if (PL_tokenbuf[2] == 'D') |
bfcb3514 | 5654 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
f776e3cd NC |
5655 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD, |
5656 | SVt_PVIO); | |
a5f75d66 | 5657 | GvMULTI_on(gv); |
79072805 | 5658 | if (!GvIO(gv)) |
a0d0e21e | 5659 | GvIOp(gv) = newIO(); |
3280af22 | 5660 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
5661 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
5662 | { | |
f54cb97a | 5663 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
5664 | fcntl(fd,F_SETFD,fd >= 3); |
5665 | } | |
79072805 | 5666 | #endif |
fd049845 | 5667 | /* Mark this internal pseudo-handle as clean */ |
5668 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
3280af22 | 5669 | if (PL_preprocess) |
50952442 | 5670 | IoTYPE(GvIOp(gv)) = IoTYPE_PIPE; |
3280af22 | 5671 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 5672 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 5673 | else |
50952442 | 5674 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
5675 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
5676 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 5677 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 5678 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
5679 | if (PL_bufend-PL_bufptr > 2 |
5680 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
5681 | { |
5682 | Off_t loc = 0; | |
50952442 | 5683 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
5684 | loc = PerlIO_tell(PL_rsfp); |
5685 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
5686 | } | |
2986a63f JH |
5687 | #ifdef NETWARE |
5688 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
5689 | #else | |
c39cd008 | 5690 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 5691 | #endif /* NETWARE */ |
1143fce0 JH |
5692 | #ifdef PERLIO_IS_STDIO /* really? */ |
5693 | # if defined(__BORLANDC__) | |
cb359b41 JH |
5694 | /* XXX see note in do_binmode() */ |
5695 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
5696 | # endif |
5697 | #endif | |
c39cd008 GS |
5698 | if (loc > 0) |
5699 | PerlIO_seek(PL_rsfp, loc, 0); | |
5700 | } | |
5701 | } | |
5702 | #endif | |
7948272d | 5703 | #ifdef PERLIO_LAYERS |
52d2e0f4 JH |
5704 | if (!IN_BYTES) { |
5705 | if (UTF) | |
5706 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
5707 | else if (PL_encoding) { | |
5708 | SV *name; | |
5709 | dSP; | |
5710 | ENTER; | |
5711 | SAVETMPS; | |
5712 | PUSHMARK(sp); | |
5713 | EXTEND(SP, 1); | |
5714 | XPUSHs(PL_encoding); | |
5715 | PUTBACK; | |
5716 | call_method("name", G_SCALAR); | |
5717 | SPAGAIN; | |
5718 | name = POPs; | |
5719 | PUTBACK; | |
bfed75c6 | 5720 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
52d2e0f4 | 5721 | Perl_form(aTHX_ ":encoding(%"SVf")", |
be2597df | 5722 | SVfARG(name))); |
52d2e0f4 JH |
5723 | FREETMPS; |
5724 | LEAVE; | |
5725 | } | |
5726 | } | |
7948272d | 5727 | #endif |
5db06880 NC |
5728 | #ifdef PERL_MAD |
5729 | if (PL_madskills) { | |
cd81e915 NC |
5730 | if (PL_realtokenstart >= 0) { |
5731 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; | |
5732 | if (!PL_endwhite) | |
6b29d1f5 | 5733 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
5734 | sv_catsv(PL_endwhite, PL_thiswhite); |
5735 | PL_thiswhite = 0; | |
5736 | sv_catpvn(PL_endwhite, tstart, PL_bufend - tstart); | |
5737 | PL_realtokenstart = -1; | |
5db06880 | 5738 | } |
cd81e915 NC |
5739 | while ((s = filter_gets(PL_endwhite, PL_rsfp, |
5740 | SvCUR(PL_endwhite))) != Nullch) ; | |
5db06880 NC |
5741 | } |
5742 | #endif | |
4608196e | 5743 | PL_rsfp = NULL; |
79072805 LW |
5744 | } |
5745 | goto fake_eof; | |
e929a76b | 5746 | } |
de3bb511 | 5747 | |
8990e307 | 5748 | case KEY_AUTOLOAD: |
ed6116ce | 5749 | case KEY_DESTROY: |
79072805 | 5750 | case KEY_BEGIN: |
3c10abe3 | 5751 | case KEY_UNITCHECK: |
7d30b5c4 | 5752 | case KEY_CHECK: |
7d07dbc2 | 5753 | case KEY_INIT: |
7d30b5c4 | 5754 | case KEY_END: |
3280af22 NIS |
5755 | if (PL_expect == XSTATE) { |
5756 | s = PL_bufptr; | |
93a17b20 | 5757 | goto really_sub; |
79072805 LW |
5758 | } |
5759 | goto just_a_word; | |
5760 | ||
a0d0e21e LW |
5761 | case KEY_CORE: |
5762 | if (*s == ':' && s[1] == ':') { | |
5763 | s += 2; | |
748a9306 | 5764 | d = s; |
3280af22 | 5765 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 5766 | if (!(tmp = keyword(PL_tokenbuf, len, 0))) |
6798c92b | 5767 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); |
a0d0e21e LW |
5768 | if (tmp < 0) |
5769 | tmp = -tmp; | |
850e8516 | 5770 | else if (tmp == KEY_require || tmp == KEY_do) |
a72a1c8b | 5771 | /* that's a way to remember we saw "CORE::" */ |
850e8516 | 5772 | orig_keyword = tmp; |
a0d0e21e LW |
5773 | goto reserved_word; |
5774 | } | |
5775 | goto just_a_word; | |
5776 | ||
463ee0b2 LW |
5777 | case KEY_abs: |
5778 | UNI(OP_ABS); | |
5779 | ||
79072805 LW |
5780 | case KEY_alarm: |
5781 | UNI(OP_ALARM); | |
5782 | ||
5783 | case KEY_accept: | |
a0d0e21e | 5784 | LOP(OP_ACCEPT,XTERM); |
79072805 | 5785 | |
463ee0b2 LW |
5786 | case KEY_and: |
5787 | OPERATOR(ANDOP); | |
5788 | ||
79072805 | 5789 | case KEY_atan2: |
a0d0e21e | 5790 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 5791 | |
79072805 | 5792 | case KEY_bind: |
a0d0e21e | 5793 | LOP(OP_BIND,XTERM); |
79072805 LW |
5794 | |
5795 | case KEY_binmode: | |
1c1fc3ea | 5796 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
5797 | |
5798 | case KEY_bless: | |
a0d0e21e | 5799 | LOP(OP_BLESS,XTERM); |
79072805 | 5800 | |
0d863452 RH |
5801 | case KEY_break: |
5802 | FUN0(OP_BREAK); | |
5803 | ||
79072805 LW |
5804 | case KEY_chop: |
5805 | UNI(OP_CHOP); | |
5806 | ||
5807 | case KEY_continue: | |
0d863452 RH |
5808 | /* When 'use switch' is in effect, continue has a dual |
5809 | life as a control operator. */ | |
5810 | { | |
ef89dcc3 | 5811 | if (!FEATURE_IS_ENABLED("switch")) |
0d863452 RH |
5812 | PREBLOCK(CONTINUE); |
5813 | else { | |
5814 | /* We have to disambiguate the two senses of | |
5815 | "continue". If the next token is a '{' then | |
5816 | treat it as the start of a continue block; | |
5817 | otherwise treat it as a control operator. | |
5818 | */ | |
5819 | s = skipspace(s); | |
5820 | if (*s == '{') | |
79072805 | 5821 | PREBLOCK(CONTINUE); |
0d863452 RH |
5822 | else |
5823 | FUN0(OP_CONTINUE); | |
5824 | } | |
5825 | } | |
79072805 LW |
5826 | |
5827 | case KEY_chdir: | |
fafc274c NC |
5828 | /* may use HOME */ |
5829 | (void)gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV); | |
79072805 LW |
5830 | UNI(OP_CHDIR); |
5831 | ||
5832 | case KEY_close: | |
5833 | UNI(OP_CLOSE); | |
5834 | ||
5835 | case KEY_closedir: | |
5836 | UNI(OP_CLOSEDIR); | |
5837 | ||
5838 | case KEY_cmp: | |
5839 | Eop(OP_SCMP); | |
5840 | ||
5841 | case KEY_caller: | |
5842 | UNI(OP_CALLER); | |
5843 | ||
5844 | case KEY_crypt: | |
5845 | #ifdef FCRYPT | |
f4c556ac GS |
5846 | if (!PL_cryptseen) { |
5847 | PL_cryptseen = TRUE; | |
de3bb511 | 5848 | init_des(); |
f4c556ac | 5849 | } |
a687059c | 5850 | #endif |
a0d0e21e | 5851 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
5852 | |
5853 | case KEY_chmod: | |
a0d0e21e | 5854 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
5855 | |
5856 | case KEY_chown: | |
a0d0e21e | 5857 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
5858 | |
5859 | case KEY_connect: | |
a0d0e21e | 5860 | LOP(OP_CONNECT,XTERM); |
79072805 | 5861 | |
463ee0b2 LW |
5862 | case KEY_chr: |
5863 | UNI(OP_CHR); | |
5864 | ||
79072805 LW |
5865 | case KEY_cos: |
5866 | UNI(OP_COS); | |
5867 | ||
5868 | case KEY_chroot: | |
5869 | UNI(OP_CHROOT); | |
5870 | ||
0d863452 RH |
5871 | case KEY_default: |
5872 | PREBLOCK(DEFAULT); | |
5873 | ||
79072805 | 5874 | case KEY_do: |
29595ff2 | 5875 | s = SKIPSPACE1(s); |
79072805 | 5876 | if (*s == '{') |
a0d0e21e | 5877 | PRETERMBLOCK(DO); |
79072805 | 5878 | if (*s != '\'') |
89c5585f | 5879 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
850e8516 RGS |
5880 | if (orig_keyword == KEY_do) { |
5881 | orig_keyword = 0; | |
5882 | yylval.ival = 1; | |
5883 | } | |
5884 | else | |
5885 | yylval.ival = 0; | |
378cc40b | 5886 | OPERATOR(DO); |
79072805 LW |
5887 | |
5888 | case KEY_die: | |
3280af22 | 5889 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 5890 | LOP(OP_DIE,XTERM); |
79072805 LW |
5891 | |
5892 | case KEY_defined: | |
5893 | UNI(OP_DEFINED); | |
5894 | ||
5895 | case KEY_delete: | |
a0d0e21e | 5896 | UNI(OP_DELETE); |
79072805 LW |
5897 | |
5898 | case KEY_dbmopen: | |
5c1737d1 | 5899 | gv_fetchpvs("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
a0d0e21e | 5900 | LOP(OP_DBMOPEN,XTERM); |
79072805 LW |
5901 | |
5902 | case KEY_dbmclose: | |
5903 | UNI(OP_DBMCLOSE); | |
5904 | ||
5905 | case KEY_dump: | |
a0d0e21e | 5906 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5907 | LOOPX(OP_DUMP); |
5908 | ||
5909 | case KEY_else: | |
5910 | PREBLOCK(ELSE); | |
5911 | ||
5912 | case KEY_elsif: | |
57843af0 | 5913 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5914 | OPERATOR(ELSIF); |
5915 | ||
5916 | case KEY_eq: | |
5917 | Eop(OP_SEQ); | |
5918 | ||
a0d0e21e LW |
5919 | case KEY_exists: |
5920 | UNI(OP_EXISTS); | |
4e553d73 | 5921 | |
79072805 | 5922 | case KEY_exit: |
5db06880 NC |
5923 | if (PL_madskills) |
5924 | UNI(OP_INT); | |
79072805 LW |
5925 | UNI(OP_EXIT); |
5926 | ||
5927 | case KEY_eval: | |
29595ff2 | 5928 | s = SKIPSPACE1(s); |
3280af22 | 5929 | PL_expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 5930 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
5931 | |
5932 | case KEY_eof: | |
5933 | UNI(OP_EOF); | |
5934 | ||
c963b151 BD |
5935 | case KEY_err: |
5936 | OPERATOR(DOROP); | |
5937 | ||
79072805 LW |
5938 | case KEY_exp: |
5939 | UNI(OP_EXP); | |
5940 | ||
5941 | case KEY_each: | |
5942 | UNI(OP_EACH); | |
5943 | ||
5944 | case KEY_exec: | |
5945 | set_csh(); | |
a0d0e21e | 5946 | LOP(OP_EXEC,XREF); |
79072805 LW |
5947 | |
5948 | case KEY_endhostent: | |
5949 | FUN0(OP_EHOSTENT); | |
5950 | ||
5951 | case KEY_endnetent: | |
5952 | FUN0(OP_ENETENT); | |
5953 | ||
5954 | case KEY_endservent: | |
5955 | FUN0(OP_ESERVENT); | |
5956 | ||
5957 | case KEY_endprotoent: | |
5958 | FUN0(OP_EPROTOENT); | |
5959 | ||
5960 | case KEY_endpwent: | |
5961 | FUN0(OP_EPWENT); | |
5962 | ||
5963 | case KEY_endgrent: | |
5964 | FUN0(OP_EGRENT); | |
5965 | ||
5966 | case KEY_for: | |
5967 | case KEY_foreach: | |
57843af0 | 5968 | yylval.ival = CopLINE(PL_curcop); |
29595ff2 | 5969 | s = SKIPSPACE1(s); |
7e2040f0 | 5970 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 5971 | char *p = s; |
5db06880 NC |
5972 | #ifdef PERL_MAD |
5973 | int soff = s - SvPVX(PL_linestr); /* for skipspace realloc */ | |
5974 | #endif | |
5975 | ||
3280af22 | 5976 | if ((PL_bufend - p) >= 3 && |
55497cff | 5977 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
5978 | p += 2; | |
77ca0c92 LW |
5979 | else if ((PL_bufend - p) >= 4 && |
5980 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
5981 | p += 3; | |
29595ff2 | 5982 | p = PEEKSPACE(p); |
7e2040f0 | 5983 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
5984 | p = scan_ident(p, PL_bufend, |
5985 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
29595ff2 | 5986 | p = PEEKSPACE(p); |
77ca0c92 LW |
5987 | } |
5988 | if (*p != '$') | |
cea2e8a9 | 5989 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
5db06880 NC |
5990 | #ifdef PERL_MAD |
5991 | s = SvPVX(PL_linestr) + soff; | |
5992 | #endif | |
55497cff | 5993 | } |
79072805 LW |
5994 | OPERATOR(FOR); |
5995 | ||
5996 | case KEY_formline: | |
a0d0e21e | 5997 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
5998 | |
5999 | case KEY_fork: | |
6000 | FUN0(OP_FORK); | |
6001 | ||
6002 | case KEY_fcntl: | |
a0d0e21e | 6003 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
6004 | |
6005 | case KEY_fileno: | |
6006 | UNI(OP_FILENO); | |
6007 | ||
6008 | case KEY_flock: | |
a0d0e21e | 6009 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
6010 | |
6011 | case KEY_gt: | |
6012 | Rop(OP_SGT); | |
6013 | ||
6014 | case KEY_ge: | |
6015 | Rop(OP_SGE); | |
6016 | ||
6017 | case KEY_grep: | |
2c38e13d | 6018 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
6019 | |
6020 | case KEY_goto: | |
a0d0e21e | 6021 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6022 | LOOPX(OP_GOTO); |
6023 | ||
6024 | case KEY_gmtime: | |
6025 | UNI(OP_GMTIME); | |
6026 | ||
6027 | case KEY_getc: | |
6f33ba73 | 6028 | UNIDOR(OP_GETC); |
79072805 LW |
6029 | |
6030 | case KEY_getppid: | |
6031 | FUN0(OP_GETPPID); | |
6032 | ||
6033 | case KEY_getpgrp: | |
6034 | UNI(OP_GETPGRP); | |
6035 | ||
6036 | case KEY_getpriority: | |
a0d0e21e | 6037 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
6038 | |
6039 | case KEY_getprotobyname: | |
6040 | UNI(OP_GPBYNAME); | |
6041 | ||
6042 | case KEY_getprotobynumber: | |
a0d0e21e | 6043 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
6044 | |
6045 | case KEY_getprotoent: | |
6046 | FUN0(OP_GPROTOENT); | |
6047 | ||
6048 | case KEY_getpwent: | |
6049 | FUN0(OP_GPWENT); | |
6050 | ||
6051 | case KEY_getpwnam: | |
ff68c719 | 6052 | UNI(OP_GPWNAM); |
79072805 LW |
6053 | |
6054 | case KEY_getpwuid: | |
ff68c719 | 6055 | UNI(OP_GPWUID); |
79072805 LW |
6056 | |
6057 | case KEY_getpeername: | |
6058 | UNI(OP_GETPEERNAME); | |
6059 | ||
6060 | case KEY_gethostbyname: | |
6061 | UNI(OP_GHBYNAME); | |
6062 | ||
6063 | case KEY_gethostbyaddr: | |
a0d0e21e | 6064 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
6065 | |
6066 | case KEY_gethostent: | |
6067 | FUN0(OP_GHOSTENT); | |
6068 | ||
6069 | case KEY_getnetbyname: | |
6070 | UNI(OP_GNBYNAME); | |
6071 | ||
6072 | case KEY_getnetbyaddr: | |
a0d0e21e | 6073 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
6074 | |
6075 | case KEY_getnetent: | |
6076 | FUN0(OP_GNETENT); | |
6077 | ||
6078 | case KEY_getservbyname: | |
a0d0e21e | 6079 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
6080 | |
6081 | case KEY_getservbyport: | |
a0d0e21e | 6082 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
6083 | |
6084 | case KEY_getservent: | |
6085 | FUN0(OP_GSERVENT); | |
6086 | ||
6087 | case KEY_getsockname: | |
6088 | UNI(OP_GETSOCKNAME); | |
6089 | ||
6090 | case KEY_getsockopt: | |
a0d0e21e | 6091 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
6092 | |
6093 | case KEY_getgrent: | |
6094 | FUN0(OP_GGRENT); | |
6095 | ||
6096 | case KEY_getgrnam: | |
ff68c719 | 6097 | UNI(OP_GGRNAM); |
79072805 LW |
6098 | |
6099 | case KEY_getgrgid: | |
ff68c719 | 6100 | UNI(OP_GGRGID); |
79072805 LW |
6101 | |
6102 | case KEY_getlogin: | |
6103 | FUN0(OP_GETLOGIN); | |
6104 | ||
0d863452 RH |
6105 | case KEY_given: |
6106 | yylval.ival = CopLINE(PL_curcop); | |
6107 | OPERATOR(GIVEN); | |
6108 | ||
93a17b20 | 6109 | case KEY_glob: |
a0d0e21e LW |
6110 | set_csh(); |
6111 | LOP(OP_GLOB,XTERM); | |
93a17b20 | 6112 | |
79072805 LW |
6113 | case KEY_hex: |
6114 | UNI(OP_HEX); | |
6115 | ||
6116 | case KEY_if: | |
57843af0 | 6117 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6118 | OPERATOR(IF); |
6119 | ||
6120 | case KEY_index: | |
a0d0e21e | 6121 | LOP(OP_INDEX,XTERM); |
79072805 LW |
6122 | |
6123 | case KEY_int: | |
6124 | UNI(OP_INT); | |
6125 | ||
6126 | case KEY_ioctl: | |
a0d0e21e | 6127 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
6128 | |
6129 | case KEY_join: | |
a0d0e21e | 6130 | LOP(OP_JOIN,XTERM); |
79072805 LW |
6131 | |
6132 | case KEY_keys: | |
6133 | UNI(OP_KEYS); | |
6134 | ||
6135 | case KEY_kill: | |
a0d0e21e | 6136 | LOP(OP_KILL,XTERM); |
79072805 LW |
6137 | |
6138 | case KEY_last: | |
a0d0e21e | 6139 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 6140 | LOOPX(OP_LAST); |
4e553d73 | 6141 | |
79072805 LW |
6142 | case KEY_lc: |
6143 | UNI(OP_LC); | |
6144 | ||
6145 | case KEY_lcfirst: | |
6146 | UNI(OP_LCFIRST); | |
6147 | ||
6148 | case KEY_local: | |
09bef843 | 6149 | yylval.ival = 0; |
79072805 LW |
6150 | OPERATOR(LOCAL); |
6151 | ||
6152 | case KEY_length: | |
6153 | UNI(OP_LENGTH); | |
6154 | ||
6155 | case KEY_lt: | |
6156 | Rop(OP_SLT); | |
6157 | ||
6158 | case KEY_le: | |
6159 | Rop(OP_SLE); | |
6160 | ||
6161 | case KEY_localtime: | |
6162 | UNI(OP_LOCALTIME); | |
6163 | ||
6164 | case KEY_log: | |
6165 | UNI(OP_LOG); | |
6166 | ||
6167 | case KEY_link: | |
a0d0e21e | 6168 | LOP(OP_LINK,XTERM); |
79072805 LW |
6169 | |
6170 | case KEY_listen: | |
a0d0e21e | 6171 | LOP(OP_LISTEN,XTERM); |
79072805 | 6172 | |
c0329465 MB |
6173 | case KEY_lock: |
6174 | UNI(OP_LOCK); | |
6175 | ||
79072805 LW |
6176 | case KEY_lstat: |
6177 | UNI(OP_LSTAT); | |
6178 | ||
6179 | case KEY_m: | |
8782bef2 | 6180 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
6181 | TERM(sublex_start()); |
6182 | ||
a0d0e21e | 6183 | case KEY_map: |
2c38e13d | 6184 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 6185 | |
79072805 | 6186 | case KEY_mkdir: |
a0d0e21e | 6187 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
6188 | |
6189 | case KEY_msgctl: | |
a0d0e21e | 6190 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
6191 | |
6192 | case KEY_msgget: | |
a0d0e21e | 6193 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
6194 | |
6195 | case KEY_msgrcv: | |
a0d0e21e | 6196 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
6197 | |
6198 | case KEY_msgsnd: | |
a0d0e21e | 6199 | LOP(OP_MSGSND,XTERM); |
79072805 | 6200 | |
77ca0c92 | 6201 | case KEY_our: |
93a17b20 | 6202 | case KEY_my: |
952306ac | 6203 | case KEY_state: |
eac04b2e | 6204 | PL_in_my = (U16)tmp; |
29595ff2 | 6205 | s = SKIPSPACE1(s); |
7e2040f0 | 6206 | if (isIDFIRST_lazy_if(s,UTF)) { |
5db06880 NC |
6207 | #ifdef PERL_MAD |
6208 | char* start = s; | |
6209 | #endif | |
3280af22 | 6210 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
6211 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
6212 | goto really_sub; | |
def3634b | 6213 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 6214 | if (!PL_in_my_stash) { |
c750a3ec | 6215 | char tmpbuf[1024]; |
3280af22 | 6216 | PL_bufptr = s; |
d9fad198 | 6217 | my_snprintf(tmpbuf, sizeof(tmpbuf), "No such class %.1000s", PL_tokenbuf); |
c750a3ec MB |
6218 | yyerror(tmpbuf); |
6219 | } | |
5db06880 NC |
6220 | #ifdef PERL_MAD |
6221 | if (PL_madskills) { /* just add type to declarator token */ | |
cd81e915 NC |
6222 | sv_catsv(PL_thistoken, PL_nextwhite); |
6223 | PL_nextwhite = 0; | |
6224 | sv_catpvn(PL_thistoken, start, s - start); | |
5db06880 NC |
6225 | } |
6226 | #endif | |
c750a3ec | 6227 | } |
09bef843 | 6228 | yylval.ival = 1; |
55497cff | 6229 | OPERATOR(MY); |
93a17b20 | 6230 | |
79072805 | 6231 | case KEY_next: |
a0d0e21e | 6232 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6233 | LOOPX(OP_NEXT); |
6234 | ||
6235 | case KEY_ne: | |
6236 | Eop(OP_SNE); | |
6237 | ||
a0d0e21e | 6238 | case KEY_no: |
468aa647 | 6239 | s = tokenize_use(0, s); |
a0d0e21e LW |
6240 | OPERATOR(USE); |
6241 | ||
6242 | case KEY_not: | |
29595ff2 | 6243 | if (*s == '(' || (s = SKIPSPACE1(s), *s == '(')) |
2d2e263d LW |
6244 | FUN1(OP_NOT); |
6245 | else | |
6246 | OPERATOR(NOTOP); | |
a0d0e21e | 6247 | |
79072805 | 6248 | case KEY_open: |
29595ff2 | 6249 | s = SKIPSPACE1(s); |
7e2040f0 | 6250 | if (isIDFIRST_lazy_if(s,UTF)) { |
f54cb97a | 6251 | const char *t; |
c35e046a AL |
6252 | for (d = s; isALNUM_lazy_if(d,UTF);) |
6253 | d++; | |
6254 | for (t=d; isSPACE(*t);) | |
6255 | t++; | |
e2ab214b | 6256 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) |
66fbe8fb HS |
6257 | /* [perl #16184] */ |
6258 | && !(t[0] == '=' && t[1] == '>') | |
6259 | ) { | |
5f66b61c | 6260 | int parms_len = (int)(d-s); |
9014280d | 6261 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 6262 | "Precedence problem: open %.*s should be open(%.*s)", |
5f66b61c | 6263 | parms_len, s, parms_len, s); |
66fbe8fb | 6264 | } |
93a17b20 | 6265 | } |
a0d0e21e | 6266 | LOP(OP_OPEN,XTERM); |
79072805 | 6267 | |
463ee0b2 | 6268 | case KEY_or: |
a0d0e21e | 6269 | yylval.ival = OP_OR; |
463ee0b2 LW |
6270 | OPERATOR(OROP); |
6271 | ||
79072805 LW |
6272 | case KEY_ord: |
6273 | UNI(OP_ORD); | |
6274 | ||
6275 | case KEY_oct: | |
6276 | UNI(OP_OCT); | |
6277 | ||
6278 | case KEY_opendir: | |
a0d0e21e | 6279 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
6280 | |
6281 | case KEY_print: | |
3280af22 | 6282 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6283 | LOP(OP_PRINT,XREF); |
79072805 LW |
6284 | |
6285 | case KEY_printf: | |
3280af22 | 6286 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6287 | LOP(OP_PRTF,XREF); |
79072805 | 6288 | |
c07a80fd | 6289 | case KEY_prototype: |
6290 | UNI(OP_PROTOTYPE); | |
6291 | ||
79072805 | 6292 | case KEY_push: |
a0d0e21e | 6293 | LOP(OP_PUSH,XTERM); |
79072805 LW |
6294 | |
6295 | case KEY_pop: | |
6f33ba73 | 6296 | UNIDOR(OP_POP); |
79072805 | 6297 | |
a0d0e21e | 6298 | case KEY_pos: |
6f33ba73 | 6299 | UNIDOR(OP_POS); |
4e553d73 | 6300 | |
79072805 | 6301 | case KEY_pack: |
a0d0e21e | 6302 | LOP(OP_PACK,XTERM); |
79072805 LW |
6303 | |
6304 | case KEY_package: | |
a0d0e21e | 6305 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
6306 | OPERATOR(PACKAGE); |
6307 | ||
6308 | case KEY_pipe: | |
a0d0e21e | 6309 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
6310 | |
6311 | case KEY_q: | |
5db06880 | 6312 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6313 | if (!s) |
d4c19fe8 | 6314 | missingterm(NULL); |
79072805 LW |
6315 | yylval.ival = OP_CONST; |
6316 | TERM(sublex_start()); | |
6317 | ||
a0d0e21e LW |
6318 | case KEY_quotemeta: |
6319 | UNI(OP_QUOTEMETA); | |
6320 | ||
8990e307 | 6321 | case KEY_qw: |
5db06880 | 6322 | s = scan_str(s,!!PL_madskills,FALSE); |
8990e307 | 6323 | if (!s) |
d4c19fe8 | 6324 | missingterm(NULL); |
3480a8d2 | 6325 | PL_expect = XOPERATOR; |
8127e0e3 GS |
6326 | force_next(')'); |
6327 | if (SvCUR(PL_lex_stuff)) { | |
5f66b61c | 6328 | OP *words = NULL; |
8127e0e3 | 6329 | int warned = 0; |
3280af22 | 6330 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 6331 | while (len) { |
d4c19fe8 AL |
6332 | for (; isSPACE(*d) && len; --len, ++d) |
6333 | /**/; | |
8127e0e3 | 6334 | if (len) { |
d4c19fe8 | 6335 | SV *sv; |
f54cb97a | 6336 | const char *b = d; |
e476b1b5 | 6337 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
6338 | for (; !isSPACE(*d) && len; --len, ++d) { |
6339 | if (*d == ',') { | |
9014280d | 6340 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6341 | "Possible attempt to separate words with commas"); |
6342 | ++warned; | |
6343 | } | |
6344 | else if (*d == '#') { | |
9014280d | 6345 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6346 | "Possible attempt to put comments in qw() list"); |
6347 | ++warned; | |
6348 | } | |
6349 | } | |
6350 | } | |
6351 | else { | |
d4c19fe8 AL |
6352 | for (; !isSPACE(*d) && len; --len, ++d) |
6353 | /**/; | |
8127e0e3 | 6354 | } |
7948272d NIS |
6355 | sv = newSVpvn(b, d-b); |
6356 | if (DO_UTF8(PL_lex_stuff)) | |
6357 | SvUTF8_on(sv); | |
8127e0e3 | 6358 | words = append_elem(OP_LIST, words, |
7948272d | 6359 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 6360 | } |
6361 | } | |
8127e0e3 | 6362 | if (words) { |
cd81e915 | 6363 | start_force(PL_curforce); |
9ded7720 | 6364 | NEXTVAL_NEXTTOKE.opval = words; |
8127e0e3 GS |
6365 | force_next(THING); |
6366 | } | |
55497cff | 6367 | } |
37fd879b | 6368 | if (PL_lex_stuff) { |
8127e0e3 | 6369 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 6370 | PL_lex_stuff = NULL; |
37fd879b | 6371 | } |
3280af22 | 6372 | PL_expect = XTERM; |
8127e0e3 | 6373 | TOKEN('('); |
8990e307 | 6374 | |
79072805 | 6375 | case KEY_qq: |
5db06880 | 6376 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6377 | if (!s) |
d4c19fe8 | 6378 | missingterm(NULL); |
a0d0e21e | 6379 | yylval.ival = OP_STRINGIFY; |
3280af22 | 6380 | if (SvIVX(PL_lex_stuff) == '\'') |
45977657 | 6381 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
6382 | TERM(sublex_start()); |
6383 | ||
8782bef2 GB |
6384 | case KEY_qr: |
6385 | s = scan_pat(s,OP_QR); | |
6386 | TERM(sublex_start()); | |
6387 | ||
79072805 | 6388 | case KEY_qx: |
5db06880 | 6389 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6390 | if (!s) |
d4c19fe8 | 6391 | missingterm(NULL); |
9b201d7d | 6392 | readpipe_override(); |
79072805 LW |
6393 | TERM(sublex_start()); |
6394 | ||
6395 | case KEY_return: | |
6396 | OLDLOP(OP_RETURN); | |
6397 | ||
6398 | case KEY_require: | |
29595ff2 | 6399 | s = SKIPSPACE1(s); |
e759cc13 RGS |
6400 | if (isDIGIT(*s)) { |
6401 | s = force_version(s, FALSE); | |
a7cb1f99 | 6402 | } |
e759cc13 RGS |
6403 | else if (*s != 'v' || !isDIGIT(s[1]) |
6404 | || (s = force_version(s, TRUE), *s == 'v')) | |
6405 | { | |
a7cb1f99 GS |
6406 | *PL_tokenbuf = '\0'; |
6407 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 6408 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
da51bb9b | 6409 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), GV_ADD); |
a7cb1f99 GS |
6410 | else if (*s == '<') |
6411 | yyerror("<> should be quotes"); | |
6412 | } | |
a72a1c8b RGS |
6413 | if (orig_keyword == KEY_require) { |
6414 | orig_keyword = 0; | |
6415 | yylval.ival = 1; | |
6416 | } | |
6417 | else | |
6418 | yylval.ival = 0; | |
6419 | PL_expect = XTERM; | |
6420 | PL_bufptr = s; | |
6421 | PL_last_uni = PL_oldbufptr; | |
6422 | PL_last_lop_op = OP_REQUIRE; | |
6423 | s = skipspace(s); | |
6424 | return REPORT( (int)REQUIRE ); | |
79072805 LW |
6425 | |
6426 | case KEY_reset: | |
6427 | UNI(OP_RESET); | |
6428 | ||
6429 | case KEY_redo: | |
a0d0e21e | 6430 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6431 | LOOPX(OP_REDO); |
6432 | ||
6433 | case KEY_rename: | |
a0d0e21e | 6434 | LOP(OP_RENAME,XTERM); |
79072805 LW |
6435 | |
6436 | case KEY_rand: | |
6437 | UNI(OP_RAND); | |
6438 | ||
6439 | case KEY_rmdir: | |
6440 | UNI(OP_RMDIR); | |
6441 | ||
6442 | case KEY_rindex: | |
a0d0e21e | 6443 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
6444 | |
6445 | case KEY_read: | |
a0d0e21e | 6446 | LOP(OP_READ,XTERM); |
79072805 LW |
6447 | |
6448 | case KEY_readdir: | |
6449 | UNI(OP_READDIR); | |
6450 | ||
93a17b20 LW |
6451 | case KEY_readline: |
6452 | set_csh(); | |
6f33ba73 | 6453 | UNIDOR(OP_READLINE); |
93a17b20 LW |
6454 | |
6455 | case KEY_readpipe: | |
6456 | set_csh(); | |
0858480c | 6457 | UNIDOR(OP_BACKTICK); |
93a17b20 | 6458 | |
79072805 LW |
6459 | case KEY_rewinddir: |
6460 | UNI(OP_REWINDDIR); | |
6461 | ||
6462 | case KEY_recv: | |
a0d0e21e | 6463 | LOP(OP_RECV,XTERM); |
79072805 LW |
6464 | |
6465 | case KEY_reverse: | |
a0d0e21e | 6466 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
6467 | |
6468 | case KEY_readlink: | |
6f33ba73 | 6469 | UNIDOR(OP_READLINK); |
79072805 LW |
6470 | |
6471 | case KEY_ref: | |
6472 | UNI(OP_REF); | |
6473 | ||
6474 | case KEY_s: | |
6475 | s = scan_subst(s); | |
6476 | if (yylval.opval) | |
6477 | TERM(sublex_start()); | |
6478 | else | |
6479 | TOKEN(1); /* force error */ | |
6480 | ||
0d863452 RH |
6481 | case KEY_say: |
6482 | checkcomma(s,PL_tokenbuf,"filehandle"); | |
6483 | LOP(OP_SAY,XREF); | |
6484 | ||
a0d0e21e LW |
6485 | case KEY_chomp: |
6486 | UNI(OP_CHOMP); | |
4e553d73 | 6487 | |
79072805 LW |
6488 | case KEY_scalar: |
6489 | UNI(OP_SCALAR); | |
6490 | ||
6491 | case KEY_select: | |
a0d0e21e | 6492 | LOP(OP_SELECT,XTERM); |
79072805 LW |
6493 | |
6494 | case KEY_seek: | |
a0d0e21e | 6495 | LOP(OP_SEEK,XTERM); |
79072805 LW |
6496 | |
6497 | case KEY_semctl: | |
a0d0e21e | 6498 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
6499 | |
6500 | case KEY_semget: | |
a0d0e21e | 6501 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
6502 | |
6503 | case KEY_semop: | |
a0d0e21e | 6504 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
6505 | |
6506 | case KEY_send: | |
a0d0e21e | 6507 | LOP(OP_SEND,XTERM); |
79072805 LW |
6508 | |
6509 | case KEY_setpgrp: | |
a0d0e21e | 6510 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
6511 | |
6512 | case KEY_setpriority: | |
a0d0e21e | 6513 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
6514 | |
6515 | case KEY_sethostent: | |
ff68c719 | 6516 | UNI(OP_SHOSTENT); |
79072805 LW |
6517 | |
6518 | case KEY_setnetent: | |
ff68c719 | 6519 | UNI(OP_SNETENT); |
79072805 LW |
6520 | |
6521 | case KEY_setservent: | |
ff68c719 | 6522 | UNI(OP_SSERVENT); |
79072805 LW |
6523 | |
6524 | case KEY_setprotoent: | |
ff68c719 | 6525 | UNI(OP_SPROTOENT); |
79072805 LW |
6526 | |
6527 | case KEY_setpwent: | |
6528 | FUN0(OP_SPWENT); | |
6529 | ||
6530 | case KEY_setgrent: | |
6531 | FUN0(OP_SGRENT); | |
6532 | ||
6533 | case KEY_seekdir: | |
a0d0e21e | 6534 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
6535 | |
6536 | case KEY_setsockopt: | |
a0d0e21e | 6537 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
6538 | |
6539 | case KEY_shift: | |
6f33ba73 | 6540 | UNIDOR(OP_SHIFT); |
79072805 LW |
6541 | |
6542 | case KEY_shmctl: | |
a0d0e21e | 6543 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
6544 | |
6545 | case KEY_shmget: | |
a0d0e21e | 6546 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
6547 | |
6548 | case KEY_shmread: | |
a0d0e21e | 6549 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
6550 | |
6551 | case KEY_shmwrite: | |
a0d0e21e | 6552 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
6553 | |
6554 | case KEY_shutdown: | |
a0d0e21e | 6555 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
6556 | |
6557 | case KEY_sin: | |
6558 | UNI(OP_SIN); | |
6559 | ||
6560 | case KEY_sleep: | |
6561 | UNI(OP_SLEEP); | |
6562 | ||
6563 | case KEY_socket: | |
a0d0e21e | 6564 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
6565 | |
6566 | case KEY_socketpair: | |
a0d0e21e | 6567 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
6568 | |
6569 | case KEY_sort: | |
3280af22 | 6570 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
29595ff2 | 6571 | s = SKIPSPACE1(s); |
79072805 | 6572 | if (*s == ';' || *s == ')') /* probably a close */ |
cea2e8a9 | 6573 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 6574 | PL_expect = XTERM; |
15f0808c | 6575 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 6576 | LOP(OP_SORT,XREF); |
79072805 LW |
6577 | |
6578 | case KEY_split: | |
a0d0e21e | 6579 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
6580 | |
6581 | case KEY_sprintf: | |
a0d0e21e | 6582 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
6583 | |
6584 | case KEY_splice: | |
a0d0e21e | 6585 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
6586 | |
6587 | case KEY_sqrt: | |
6588 | UNI(OP_SQRT); | |
6589 | ||
6590 | case KEY_srand: | |
6591 | UNI(OP_SRAND); | |
6592 | ||
6593 | case KEY_stat: | |
6594 | UNI(OP_STAT); | |
6595 | ||
6596 | case KEY_study: | |
79072805 LW |
6597 | UNI(OP_STUDY); |
6598 | ||
6599 | case KEY_substr: | |
a0d0e21e | 6600 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
6601 | |
6602 | case KEY_format: | |
6603 | case KEY_sub: | |
93a17b20 | 6604 | really_sub: |
09bef843 | 6605 | { |
3280af22 | 6606 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 6607 | SSize_t tboffset = 0; |
09bef843 | 6608 | expectation attrful; |
28cc6278 | 6609 | bool have_name, have_proto; |
f54cb97a | 6610 | const int key = tmp; |
09bef843 | 6611 | |
5db06880 NC |
6612 | #ifdef PERL_MAD |
6613 | SV *tmpwhite = 0; | |
6614 | ||
cd81e915 | 6615 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
5db06880 | 6616 | SV *subtoken = newSVpvn(tstart, s - tstart); |
cd81e915 | 6617 | PL_thistoken = 0; |
5db06880 NC |
6618 | |
6619 | d = s; | |
6620 | s = SKIPSPACE2(s,tmpwhite); | |
6621 | #else | |
09bef843 | 6622 | s = skipspace(s); |
5db06880 | 6623 | #endif |
09bef843 | 6624 | |
7e2040f0 | 6625 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
6626 | (*s == ':' && s[1] == ':')) |
6627 | { | |
5db06880 NC |
6628 | #ifdef PERL_MAD |
6629 | SV *nametoke; | |
6630 | #endif | |
6631 | ||
09bef843 SB |
6632 | PL_expect = XBLOCK; |
6633 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
6634 | /* remember buffer pos'n for later force_word */ |
6635 | tboffset = s - PL_oldbufptr; | |
09bef843 | 6636 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5db06880 NC |
6637 | #ifdef PERL_MAD |
6638 | if (PL_madskills) | |
6639 | nametoke = newSVpvn(s, d - s); | |
6640 | #endif | |
6502358f NC |
6641 | if (memchr(tmpbuf, ':', len)) |
6642 | sv_setpvn(PL_subname, tmpbuf, len); | |
09bef843 SB |
6643 | else { |
6644 | sv_setsv(PL_subname,PL_curstname); | |
396482e1 | 6645 | sv_catpvs(PL_subname,"::"); |
09bef843 SB |
6646 | sv_catpvn(PL_subname,tmpbuf,len); |
6647 | } | |
09bef843 | 6648 | have_name = TRUE; |
5db06880 NC |
6649 | |
6650 | #ifdef PERL_MAD | |
6651 | ||
6652 | start_force(0); | |
6653 | CURMAD('X', nametoke); | |
6654 | CURMAD('_', tmpwhite); | |
6655 | (void) force_word(PL_oldbufptr + tboffset, WORD, | |
6656 | FALSE, TRUE, TRUE); | |
6657 | ||
6658 | s = SKIPSPACE2(d,tmpwhite); | |
6659 | #else | |
6660 | s = skipspace(d); | |
6661 | #endif | |
09bef843 | 6662 | } |
463ee0b2 | 6663 | else { |
09bef843 SB |
6664 | if (key == KEY_my) |
6665 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
6666 | PL_expect = XTERMBLOCK; | |
6667 | attrful = XATTRTERM; | |
c69006e4 | 6668 | sv_setpvn(PL_subname,"?",1); |
09bef843 | 6669 | have_name = FALSE; |
463ee0b2 | 6670 | } |
4633a7c4 | 6671 | |
09bef843 SB |
6672 | if (key == KEY_format) { |
6673 | if (*s == '=') | |
6674 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5db06880 | 6675 | #ifdef PERL_MAD |
cd81e915 | 6676 | PL_thistoken = subtoken; |
5db06880 NC |
6677 | s = d; |
6678 | #else | |
09bef843 | 6679 | if (have_name) |
b1b65b59 JH |
6680 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6681 | FALSE, TRUE, TRUE); | |
5db06880 | 6682 | #endif |
09bef843 SB |
6683 | OPERATOR(FORMAT); |
6684 | } | |
79072805 | 6685 | |
09bef843 SB |
6686 | /* Look for a prototype */ |
6687 | if (*s == '(') { | |
d9f2850e RGS |
6688 | char *p; |
6689 | bool bad_proto = FALSE; | |
6690 | const bool warnsyntax = ckWARN(WARN_SYNTAX); | |
09bef843 | 6691 | |
5db06880 | 6692 | s = scan_str(s,!!PL_madskills,FALSE); |
37fd879b | 6693 | if (!s) |
09bef843 | 6694 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 6695 | /* strip spaces and check for bad characters */ |
09bef843 SB |
6696 | d = SvPVX(PL_lex_stuff); |
6697 | tmp = 0; | |
d9f2850e RGS |
6698 | for (p = d; *p; ++p) { |
6699 | if (!isSPACE(*p)) { | |
6700 | d[tmp++] = *p; | |
b13fd70a | 6701 | if (warnsyntax && !strchr("$@%*;[]&\\_", *p)) |
d9f2850e | 6702 | bad_proto = TRUE; |
d37a9538 | 6703 | } |
09bef843 | 6704 | } |
d9f2850e RGS |
6705 | d[tmp] = '\0'; |
6706 | if (bad_proto) | |
6707 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
6708 | "Illegal character in prototype for %"SVf" : %s", | |
be2597df | 6709 | SVfARG(PL_subname), d); |
b162af07 | 6710 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 6711 | have_proto = TRUE; |
68dc0745 | 6712 | |
5db06880 NC |
6713 | #ifdef PERL_MAD |
6714 | start_force(0); | |
cd81e915 | 6715 | CURMAD('q', PL_thisopen); |
5db06880 | 6716 | CURMAD('_', tmpwhite); |
cd81e915 NC |
6717 | CURMAD('=', PL_thisstuff); |
6718 | CURMAD('Q', PL_thisclose); | |
5db06880 NC |
6719 | NEXTVAL_NEXTTOKE.opval = |
6720 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
6721 | PL_lex_stuff = Nullsv; | |
6722 | force_next(THING); | |
6723 | ||
6724 | s = SKIPSPACE2(s,tmpwhite); | |
6725 | #else | |
09bef843 | 6726 | s = skipspace(s); |
5db06880 | 6727 | #endif |
4633a7c4 | 6728 | } |
09bef843 SB |
6729 | else |
6730 | have_proto = FALSE; | |
6731 | ||
6732 | if (*s == ':' && s[1] != ':') | |
6733 | PL_expect = attrful; | |
8e742a20 MHM |
6734 | else if (*s != '{' && key == KEY_sub) { |
6735 | if (!have_name) | |
6736 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
6737 | else if (*s != ';') | |
be2597df | 6738 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, SVfARG(PL_subname)); |
8e742a20 | 6739 | } |
09bef843 | 6740 | |
5db06880 NC |
6741 | #ifdef PERL_MAD |
6742 | start_force(0); | |
6743 | if (tmpwhite) { | |
6744 | if (PL_madskills) | |
6b29d1f5 | 6745 | curmad('^', newSVpvs("")); |
5db06880 NC |
6746 | CURMAD('_', tmpwhite); |
6747 | } | |
6748 | force_next(0); | |
6749 | ||
cd81e915 | 6750 | PL_thistoken = subtoken; |
5db06880 | 6751 | #else |
09bef843 | 6752 | if (have_proto) { |
9ded7720 | 6753 | NEXTVAL_NEXTTOKE.opval = |
b1b65b59 | 6754 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); |
a0714e2c | 6755 | PL_lex_stuff = NULL; |
09bef843 | 6756 | force_next(THING); |
68dc0745 | 6757 | } |
5db06880 | 6758 | #endif |
09bef843 | 6759 | if (!have_name) { |
c99da370 | 6760 | sv_setpv(PL_subname, |
10edeb5d JH |
6761 | (const char *) |
6762 | (PL_curstash ? "__ANON__" : "__ANON__::__ANON__")); | |
09bef843 | 6763 | TOKEN(ANONSUB); |
4633a7c4 | 6764 | } |
5db06880 | 6765 | #ifndef PERL_MAD |
b1b65b59 JH |
6766 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6767 | FALSE, TRUE, TRUE); | |
5db06880 | 6768 | #endif |
09bef843 SB |
6769 | if (key == KEY_my) |
6770 | TOKEN(MYSUB); | |
6771 | TOKEN(SUB); | |
4633a7c4 | 6772 | } |
79072805 LW |
6773 | |
6774 | case KEY_system: | |
6775 | set_csh(); | |
a0d0e21e | 6776 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
6777 | |
6778 | case KEY_symlink: | |
a0d0e21e | 6779 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
6780 | |
6781 | case KEY_syscall: | |
a0d0e21e | 6782 | LOP(OP_SYSCALL,XTERM); |
79072805 | 6783 | |
c07a80fd | 6784 | case KEY_sysopen: |
6785 | LOP(OP_SYSOPEN,XTERM); | |
6786 | ||
137443ea | 6787 | case KEY_sysseek: |
6788 | LOP(OP_SYSSEEK,XTERM); | |
6789 | ||
79072805 | 6790 | case KEY_sysread: |
a0d0e21e | 6791 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
6792 | |
6793 | case KEY_syswrite: | |
a0d0e21e | 6794 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
6795 | |
6796 | case KEY_tr: | |
6797 | s = scan_trans(s); | |
6798 | TERM(sublex_start()); | |
6799 | ||
6800 | case KEY_tell: | |
6801 | UNI(OP_TELL); | |
6802 | ||
6803 | case KEY_telldir: | |
6804 | UNI(OP_TELLDIR); | |
6805 | ||
463ee0b2 | 6806 | case KEY_tie: |
a0d0e21e | 6807 | LOP(OP_TIE,XTERM); |
463ee0b2 | 6808 | |
c07a80fd | 6809 | case KEY_tied: |
6810 | UNI(OP_TIED); | |
6811 | ||
79072805 LW |
6812 | case KEY_time: |
6813 | FUN0(OP_TIME); | |
6814 | ||
6815 | case KEY_times: | |
6816 | FUN0(OP_TMS); | |
6817 | ||
6818 | case KEY_truncate: | |
a0d0e21e | 6819 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
6820 | |
6821 | case KEY_uc: | |
6822 | UNI(OP_UC); | |
6823 | ||
6824 | case KEY_ucfirst: | |
6825 | UNI(OP_UCFIRST); | |
6826 | ||
463ee0b2 LW |
6827 | case KEY_untie: |
6828 | UNI(OP_UNTIE); | |
6829 | ||
79072805 | 6830 | case KEY_until: |
57843af0 | 6831 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6832 | OPERATOR(UNTIL); |
6833 | ||
6834 | case KEY_unless: | |
57843af0 | 6835 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6836 | OPERATOR(UNLESS); |
6837 | ||
6838 | case KEY_unlink: | |
a0d0e21e | 6839 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
6840 | |
6841 | case KEY_undef: | |
6f33ba73 | 6842 | UNIDOR(OP_UNDEF); |
79072805 LW |
6843 | |
6844 | case KEY_unpack: | |
a0d0e21e | 6845 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
6846 | |
6847 | case KEY_utime: | |
a0d0e21e | 6848 | LOP(OP_UTIME,XTERM); |
79072805 LW |
6849 | |
6850 | case KEY_umask: | |
6f33ba73 | 6851 | UNIDOR(OP_UMASK); |
79072805 LW |
6852 | |
6853 | case KEY_unshift: | |
a0d0e21e LW |
6854 | LOP(OP_UNSHIFT,XTERM); |
6855 | ||
6856 | case KEY_use: | |
468aa647 | 6857 | s = tokenize_use(1, s); |
a0d0e21e | 6858 | OPERATOR(USE); |
79072805 LW |
6859 | |
6860 | case KEY_values: | |
6861 | UNI(OP_VALUES); | |
6862 | ||
6863 | case KEY_vec: | |
a0d0e21e | 6864 | LOP(OP_VEC,XTERM); |
79072805 | 6865 | |
0d863452 RH |
6866 | case KEY_when: |
6867 | yylval.ival = CopLINE(PL_curcop); | |
6868 | OPERATOR(WHEN); | |
6869 | ||
79072805 | 6870 | case KEY_while: |
57843af0 | 6871 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6872 | OPERATOR(WHILE); |
6873 | ||
6874 | case KEY_warn: | |
3280af22 | 6875 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 6876 | LOP(OP_WARN,XTERM); |
79072805 LW |
6877 | |
6878 | case KEY_wait: | |
6879 | FUN0(OP_WAIT); | |
6880 | ||
6881 | case KEY_waitpid: | |
a0d0e21e | 6882 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
6883 | |
6884 | case KEY_wantarray: | |
6885 | FUN0(OP_WANTARRAY); | |
6886 | ||
6887 | case KEY_write: | |
9d116dd7 JH |
6888 | #ifdef EBCDIC |
6889 | { | |
df3728a2 JH |
6890 | char ctl_l[2]; |
6891 | ctl_l[0] = toCTRL('L'); | |
6892 | ctl_l[1] = '\0'; | |
fafc274c | 6893 | gv_fetchpvn_flags(ctl_l, 1, GV_ADD|GV_NOTQUAL, SVt_PV); |
9d116dd7 JH |
6894 | } |
6895 | #else | |
fafc274c NC |
6896 | /* Make sure $^L is defined */ |
6897 | gv_fetchpvs("\f", GV_ADD|GV_NOTQUAL, SVt_PV); | |
9d116dd7 | 6898 | #endif |
79072805 LW |
6899 | UNI(OP_ENTERWRITE); |
6900 | ||
6901 | case KEY_x: | |
3280af22 | 6902 | if (PL_expect == XOPERATOR) |
79072805 LW |
6903 | Mop(OP_REPEAT); |
6904 | check_uni(); | |
6905 | goto just_a_word; | |
6906 | ||
a0d0e21e LW |
6907 | case KEY_xor: |
6908 | yylval.ival = OP_XOR; | |
6909 | OPERATOR(OROP); | |
6910 | ||
79072805 LW |
6911 | case KEY_y: |
6912 | s = scan_trans(s); | |
6913 | TERM(sublex_start()); | |
6914 | } | |
49dc05e3 | 6915 | }} |
79072805 | 6916 | } |
bf4acbe4 GS |
6917 | #ifdef __SC__ |
6918 | #pragma segment Main | |
6919 | #endif | |
79072805 | 6920 | |
e930465f JH |
6921 | static int |
6922 | S_pending_ident(pTHX) | |
8eceec63 | 6923 | { |
97aff369 | 6924 | dVAR; |
8eceec63 | 6925 | register char *d; |
bbd11bfc | 6926 | PADOFFSET tmp = 0; |
8eceec63 SC |
6927 | /* pit holds the identifier we read and pending_ident is reset */ |
6928 | char pit = PL_pending_ident; | |
6929 | PL_pending_ident = 0; | |
6930 | ||
cd81e915 | 6931 | /* PL_realtokenstart = realtokenend = PL_bufptr - SvPVX(PL_linestr); */ |
8eceec63 | 6932 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 6933 | "### Pending identifier '%s'\n", PL_tokenbuf); }); |
8eceec63 SC |
6934 | |
6935 | /* if we're in a my(), we can't allow dynamics here. | |
6936 | $foo'bar has already been turned into $foo::bar, so | |
6937 | just check for colons. | |
6938 | ||
6939 | if it's a legal name, the OP is a PADANY. | |
6940 | */ | |
6941 | if (PL_in_my) { | |
6942 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
6943 | if (strchr(PL_tokenbuf,':')) | |
6944 | yyerror(Perl_form(aTHX_ "No package name allowed for " | |
6945 | "variable %s in \"our\"", | |
6946 | PL_tokenbuf)); | |
dd2155a4 | 6947 | tmp = allocmy(PL_tokenbuf); |
8eceec63 SC |
6948 | } |
6949 | else { | |
6950 | if (strchr(PL_tokenbuf,':')) | |
952306ac RGS |
6951 | yyerror(Perl_form(aTHX_ PL_no_myglob, |
6952 | PL_in_my == KEY_my ? "my" : "state", PL_tokenbuf)); | |
8eceec63 SC |
6953 | |
6954 | yylval.opval = newOP(OP_PADANY, 0); | |
dd2155a4 | 6955 | yylval.opval->op_targ = allocmy(PL_tokenbuf); |
8eceec63 SC |
6956 | return PRIVATEREF; |
6957 | } | |
6958 | } | |
6959 | ||
6960 | /* | |
6961 | build the ops for accesses to a my() variable. | |
6962 | ||
6963 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
6964 | then used in a comparison. This catches most, but not | |
6965 | all cases. For instance, it catches | |
6966 | sort { my($a); $a <=> $b } | |
6967 | but not | |
6968 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
6969 | (although why you'd do that is anyone's guess). | |
6970 | */ | |
6971 | ||
6972 | if (!strchr(PL_tokenbuf,':')) { | |
8716503d DM |
6973 | if (!PL_in_my) |
6974 | tmp = pad_findmy(PL_tokenbuf); | |
6975 | if (tmp != NOT_IN_PAD) { | |
8eceec63 | 6976 | /* might be an "our" variable" */ |
00b1698f | 6977 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
8eceec63 | 6978 | /* build ops for a bareword */ |
b64e5050 AL |
6979 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
6980 | HEK * const stashname = HvNAME_HEK(stash); | |
6981 | SV * const sym = newSVhek(stashname); | |
396482e1 | 6982 | sv_catpvs(sym, "::"); |
8eceec63 SC |
6983 | sv_catpv(sym, PL_tokenbuf+1); |
6984 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); | |
6985 | yylval.opval->op_private = OPpCONST_ENTERED; | |
7a5fd60d | 6986 | gv_fetchsv(sym, |
8eceec63 SC |
6987 | (PL_in_eval |
6988 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 6989 | : GV_ADDMULTI |
8eceec63 SC |
6990 | ), |
6991 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
6992 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
6993 | : SVt_PVHV)); | |
6994 | return WORD; | |
6995 | } | |
6996 | ||
6997 | /* if it's a sort block and they're naming $a or $b */ | |
6998 | if (PL_last_lop_op == OP_SORT && | |
6999 | PL_tokenbuf[0] == '$' && | |
7000 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
7001 | && !PL_tokenbuf[2]) | |
7002 | { | |
7003 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
7004 | d < PL_bufend && *d != '\n'; | |
7005 | d++) | |
7006 | { | |
7007 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
7008 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
7009 | PL_tokenbuf); | |
7010 | } | |
7011 | } | |
7012 | } | |
7013 | ||
7014 | yylval.opval = newOP(OP_PADANY, 0); | |
7015 | yylval.opval->op_targ = tmp; | |
7016 | return PRIVATEREF; | |
7017 | } | |
7018 | } | |
7019 | ||
7020 | /* | |
7021 | Whine if they've said @foo in a doublequoted string, | |
7022 | and @foo isn't a variable we can find in the symbol | |
7023 | table. | |
7024 | */ | |
7025 | if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
f776e3cd | 7026 | GV *gv = gv_fetchpv(PL_tokenbuf+1, 0, SVt_PVAV); |
8eceec63 | 7027 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
e879d94f RGS |
7028 | && ckWARN(WARN_AMBIGUOUS) |
7029 | /* DO NOT warn for @- and @+ */ | |
7030 | && !( PL_tokenbuf[2] == '\0' && | |
7031 | ( PL_tokenbuf[1] == '-' || PL_tokenbuf[1] == '+' )) | |
7032 | ) | |
8eceec63 SC |
7033 | { |
7034 | /* Downgraded from fatal to warning 20000522 mjd */ | |
9014280d | 7035 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
8eceec63 SC |
7036 | "Possible unintended interpolation of %s in string", |
7037 | PL_tokenbuf); | |
7038 | } | |
7039 | } | |
7040 | ||
7041 | /* build ops for a bareword */ | |
7042 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf+1, 0)); | |
7043 | yylval.opval->op_private = OPpCONST_ENTERED; | |
adc51b97 RGS |
7044 | gv_fetchpv( |
7045 | PL_tokenbuf+1, | |
d6069db2 RGS |
7046 | /* If the identifier refers to a stash, don't autovivify it. |
7047 | * Change 24660 had the side effect of causing symbol table | |
7048 | * hashes to always be defined, even if they were freshly | |
7049 | * created and the only reference in the entire program was | |
7050 | * the single statement with the defined %foo::bar:: test. | |
7051 | * It appears that all code in the wild doing this actually | |
7052 | * wants to know whether sub-packages have been loaded, so | |
7053 | * by avoiding auto-vivifying symbol tables, we ensure that | |
7054 | * defined %foo::bar:: continues to be false, and the existing | |
7055 | * tests still give the expected answers, even though what | |
7056 | * they're actually testing has now changed subtly. | |
7057 | */ | |
7058 | (*PL_tokenbuf == '%' && *(d = PL_tokenbuf + strlen(PL_tokenbuf) - 1) == ':' && d[-1] == ':' | |
7059 | ? 0 | |
7060 | : PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD), | |
adc51b97 RGS |
7061 | ((PL_tokenbuf[0] == '$') ? SVt_PV |
7062 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
7063 | : SVt_PVHV)); | |
8eceec63 SC |
7064 | return WORD; |
7065 | } | |
7066 | ||
4c3bbe0f MHM |
7067 | /* |
7068 | * The following code was generated by perl_keyword.pl. | |
7069 | */ | |
e2e1dd5a | 7070 | |
79072805 | 7071 | I32 |
5458a98a | 7072 | Perl_keyword (pTHX_ const char *name, I32 len, bool all_keywords) |
4c3bbe0f | 7073 | { |
952306ac | 7074 | dVAR; |
4c3bbe0f MHM |
7075 | switch (len) |
7076 | { | |
7077 | case 1: /* 5 tokens of length 1 */ | |
7078 | switch (name[0]) | |
e2e1dd5a | 7079 | { |
4c3bbe0f MHM |
7080 | case 'm': |
7081 | { /* m */ | |
7082 | return KEY_m; | |
7083 | } | |
7084 | ||
4c3bbe0f MHM |
7085 | case 'q': |
7086 | { /* q */ | |
7087 | return KEY_q; | |
7088 | } | |
7089 | ||
4c3bbe0f MHM |
7090 | case 's': |
7091 | { /* s */ | |
7092 | return KEY_s; | |
7093 | } | |
7094 | ||
4c3bbe0f MHM |
7095 | case 'x': |
7096 | { /* x */ | |
7097 | return -KEY_x; | |
7098 | } | |
7099 | ||
4c3bbe0f MHM |
7100 | case 'y': |
7101 | { /* y */ | |
7102 | return KEY_y; | |
7103 | } | |
7104 | ||
4c3bbe0f MHM |
7105 | default: |
7106 | goto unknown; | |
e2e1dd5a | 7107 | } |
4c3bbe0f MHM |
7108 | |
7109 | case 2: /* 18 tokens of length 2 */ | |
7110 | switch (name[0]) | |
e2e1dd5a | 7111 | { |
4c3bbe0f MHM |
7112 | case 'd': |
7113 | if (name[1] == 'o') | |
7114 | { /* do */ | |
7115 | return KEY_do; | |
7116 | } | |
7117 | ||
7118 | goto unknown; | |
7119 | ||
7120 | case 'e': | |
7121 | if (name[1] == 'q') | |
7122 | { /* eq */ | |
7123 | return -KEY_eq; | |
7124 | } | |
7125 | ||
7126 | goto unknown; | |
7127 | ||
7128 | case 'g': | |
7129 | switch (name[1]) | |
7130 | { | |
7131 | case 'e': | |
7132 | { /* ge */ | |
7133 | return -KEY_ge; | |
7134 | } | |
7135 | ||
4c3bbe0f MHM |
7136 | case 't': |
7137 | { /* gt */ | |
7138 | return -KEY_gt; | |
7139 | } | |
7140 | ||
4c3bbe0f MHM |
7141 | default: |
7142 | goto unknown; | |
7143 | } | |
7144 | ||
7145 | case 'i': | |
7146 | if (name[1] == 'f') | |
7147 | { /* if */ | |
7148 | return KEY_if; | |
7149 | } | |
7150 | ||
7151 | goto unknown; | |
7152 | ||
7153 | case 'l': | |
7154 | switch (name[1]) | |
7155 | { | |
7156 | case 'c': | |
7157 | { /* lc */ | |
7158 | return -KEY_lc; | |
7159 | } | |
7160 | ||
4c3bbe0f MHM |
7161 | case 'e': |
7162 | { /* le */ | |
7163 | return -KEY_le; | |
7164 | } | |
7165 | ||
4c3bbe0f MHM |
7166 | case 't': |
7167 | { /* lt */ | |
7168 | return -KEY_lt; | |
7169 | } | |
7170 | ||
4c3bbe0f MHM |
7171 | default: |
7172 | goto unknown; | |
7173 | } | |
7174 | ||
7175 | case 'm': | |
7176 | if (name[1] == 'y') | |
7177 | { /* my */ | |
7178 | return KEY_my; | |
7179 | } | |
7180 | ||
7181 | goto unknown; | |
7182 | ||
7183 | case 'n': | |
7184 | switch (name[1]) | |
7185 | { | |
7186 | case 'e': | |
7187 | { /* ne */ | |
7188 | return -KEY_ne; | |
7189 | } | |
7190 | ||
4c3bbe0f MHM |
7191 | case 'o': |
7192 | { /* no */ | |
7193 | return KEY_no; | |
7194 | } | |
7195 | ||
4c3bbe0f MHM |
7196 | default: |
7197 | goto unknown; | |
7198 | } | |
7199 | ||
7200 | case 'o': | |
7201 | if (name[1] == 'r') | |
7202 | { /* or */ | |
7203 | return -KEY_or; | |
7204 | } | |
7205 | ||
7206 | goto unknown; | |
7207 | ||
7208 | case 'q': | |
7209 | switch (name[1]) | |
7210 | { | |
7211 | case 'q': | |
7212 | { /* qq */ | |
7213 | return KEY_qq; | |
7214 | } | |
7215 | ||
4c3bbe0f MHM |
7216 | case 'r': |
7217 | { /* qr */ | |
7218 | return KEY_qr; | |
7219 | } | |
7220 | ||
4c3bbe0f MHM |
7221 | case 'w': |
7222 | { /* qw */ | |
7223 | return KEY_qw; | |
7224 | } | |
7225 | ||
4c3bbe0f MHM |
7226 | case 'x': |
7227 | { /* qx */ | |
7228 | return KEY_qx; | |
7229 | } | |
7230 | ||
4c3bbe0f MHM |
7231 | default: |
7232 | goto unknown; | |
7233 | } | |
7234 | ||
7235 | case 't': | |
7236 | if (name[1] == 'r') | |
7237 | { /* tr */ | |
7238 | return KEY_tr; | |
7239 | } | |
7240 | ||
7241 | goto unknown; | |
7242 | ||
7243 | case 'u': | |
7244 | if (name[1] == 'c') | |
7245 | { /* uc */ | |
7246 | return -KEY_uc; | |
7247 | } | |
7248 | ||
7249 | goto unknown; | |
7250 | ||
7251 | default: | |
7252 | goto unknown; | |
e2e1dd5a | 7253 | } |
4c3bbe0f | 7254 | |
0d863452 | 7255 | case 3: /* 29 tokens of length 3 */ |
4c3bbe0f | 7256 | switch (name[0]) |
e2e1dd5a | 7257 | { |
4c3bbe0f MHM |
7258 | case 'E': |
7259 | if (name[1] == 'N' && | |
7260 | name[2] == 'D') | |
7261 | { /* END */ | |
7262 | return KEY_END; | |
7263 | } | |
7264 | ||
7265 | goto unknown; | |
7266 | ||
7267 | case 'a': | |
7268 | switch (name[1]) | |
7269 | { | |
7270 | case 'b': | |
7271 | if (name[2] == 's') | |
7272 | { /* abs */ | |
7273 | return -KEY_abs; | |
7274 | } | |
7275 | ||
7276 | goto unknown; | |
7277 | ||
7278 | case 'n': | |
7279 | if (name[2] == 'd') | |
7280 | { /* and */ | |
7281 | return -KEY_and; | |
7282 | } | |
7283 | ||
7284 | goto unknown; | |
7285 | ||
7286 | default: | |
7287 | goto unknown; | |
7288 | } | |
7289 | ||
7290 | case 'c': | |
7291 | switch (name[1]) | |
7292 | { | |
7293 | case 'h': | |
7294 | if (name[2] == 'r') | |
7295 | { /* chr */ | |
7296 | return -KEY_chr; | |
7297 | } | |
7298 | ||
7299 | goto unknown; | |
7300 | ||
7301 | case 'm': | |
7302 | if (name[2] == 'p') | |
7303 | { /* cmp */ | |
7304 | return -KEY_cmp; | |
7305 | } | |
7306 | ||
7307 | goto unknown; | |
7308 | ||
7309 | case 'o': | |
7310 | if (name[2] == 's') | |
7311 | { /* cos */ | |
7312 | return -KEY_cos; | |
7313 | } | |
7314 | ||
7315 | goto unknown; | |
7316 | ||
7317 | default: | |
7318 | goto unknown; | |
7319 | } | |
7320 | ||
7321 | case 'd': | |
7322 | if (name[1] == 'i' && | |
7323 | name[2] == 'e') | |
7324 | { /* die */ | |
7325 | return -KEY_die; | |
7326 | } | |
7327 | ||
7328 | goto unknown; | |
7329 | ||
7330 | case 'e': | |
7331 | switch (name[1]) | |
7332 | { | |
7333 | case 'o': | |
7334 | if (name[2] == 'f') | |
7335 | { /* eof */ | |
7336 | return -KEY_eof; | |
7337 | } | |
7338 | ||
7339 | goto unknown; | |
7340 | ||
7341 | case 'r': | |
7342 | if (name[2] == 'r') | |
7343 | { /* err */ | |
5458a98a | 7344 | return (all_keywords || FEATURE_IS_ENABLED("err") ? -KEY_err : 0); |
4c3bbe0f MHM |
7345 | } |
7346 | ||
7347 | goto unknown; | |
7348 | ||
7349 | case 'x': | |
7350 | if (name[2] == 'p') | |
7351 | { /* exp */ | |
7352 | return -KEY_exp; | |
7353 | } | |
7354 | ||
7355 | goto unknown; | |
7356 | ||
7357 | default: | |
7358 | goto unknown; | |
7359 | } | |
7360 | ||
7361 | case 'f': | |
7362 | if (name[1] == 'o' && | |
7363 | name[2] == 'r') | |
7364 | { /* for */ | |
7365 | return KEY_for; | |
7366 | } | |
7367 | ||
7368 | goto unknown; | |
7369 | ||
7370 | case 'h': | |
7371 | if (name[1] == 'e' && | |
7372 | name[2] == 'x') | |
7373 | { /* hex */ | |
7374 | return -KEY_hex; | |
7375 | } | |
7376 | ||
7377 | goto unknown; | |
7378 | ||
7379 | case 'i': | |
7380 | if (name[1] == 'n' && | |
7381 | name[2] == 't') | |
7382 | { /* int */ | |
7383 | return -KEY_int; | |
7384 | } | |
7385 | ||
7386 | goto unknown; | |
7387 | ||
7388 | case 'l': | |
7389 | if (name[1] == 'o' && | |
7390 | name[2] == 'g') | |
7391 | { /* log */ | |
7392 | return -KEY_log; | |
7393 | } | |
7394 | ||
7395 | goto unknown; | |
7396 | ||
7397 | case 'm': | |
7398 | if (name[1] == 'a' && | |
7399 | name[2] == 'p') | |
7400 | { /* map */ | |
7401 | return KEY_map; | |
7402 | } | |
7403 | ||
7404 | goto unknown; | |
7405 | ||
7406 | case 'n': | |
7407 | if (name[1] == 'o' && | |
7408 | name[2] == 't') | |
7409 | { /* not */ | |
7410 | return -KEY_not; | |
7411 | } | |
7412 | ||
7413 | goto unknown; | |
7414 | ||
7415 | case 'o': | |
7416 | switch (name[1]) | |
7417 | { | |
7418 | case 'c': | |
7419 | if (name[2] == 't') | |
7420 | { /* oct */ | |
7421 | return -KEY_oct; | |
7422 | } | |
7423 | ||
7424 | goto unknown; | |
7425 | ||
7426 | case 'r': | |
7427 | if (name[2] == 'd') | |
7428 | { /* ord */ | |
7429 | return -KEY_ord; | |
7430 | } | |
7431 | ||
7432 | goto unknown; | |
7433 | ||
7434 | case 'u': | |
7435 | if (name[2] == 'r') | |
7436 | { /* our */ | |
7437 | return KEY_our; | |
7438 | } | |
7439 | ||
7440 | goto unknown; | |
7441 | ||
7442 | default: | |
7443 | goto unknown; | |
7444 | } | |
7445 | ||
7446 | case 'p': | |
7447 | if (name[1] == 'o') | |
7448 | { | |
7449 | switch (name[2]) | |
7450 | { | |
7451 | case 'p': | |
7452 | { /* pop */ | |
7453 | return -KEY_pop; | |
7454 | } | |
7455 | ||
4c3bbe0f MHM |
7456 | case 's': |
7457 | { /* pos */ | |
7458 | return KEY_pos; | |
7459 | } | |
7460 | ||
4c3bbe0f MHM |
7461 | default: |
7462 | goto unknown; | |
7463 | } | |
7464 | } | |
7465 | ||
7466 | goto unknown; | |
7467 | ||
7468 | case 'r': | |
7469 | if (name[1] == 'e' && | |
7470 | name[2] == 'f') | |
7471 | { /* ref */ | |
7472 | return -KEY_ref; | |
7473 | } | |
7474 | ||
7475 | goto unknown; | |
7476 | ||
7477 | case 's': | |
7478 | switch (name[1]) | |
7479 | { | |
0d863452 RH |
7480 | case 'a': |
7481 | if (name[2] == 'y') | |
7482 | { /* say */ | |
e3e804c9 | 7483 | return (all_keywords || FEATURE_IS_ENABLED("say") ? KEY_say : 0); |
0d863452 RH |
7484 | } |
7485 | ||
7486 | goto unknown; | |
7487 | ||
4c3bbe0f MHM |
7488 | case 'i': |
7489 | if (name[2] == 'n') | |
7490 | { /* sin */ | |
7491 | return -KEY_sin; | |
7492 | } | |
7493 | ||
7494 | goto unknown; | |
7495 | ||
7496 | case 'u': | |
7497 | if (name[2] == 'b') | |
7498 | { /* sub */ | |
7499 | return KEY_sub; | |
7500 | } | |
7501 | ||
7502 | goto unknown; | |
7503 | ||
7504 | default: | |
7505 | goto unknown; | |
7506 | } | |
7507 | ||
7508 | case 't': | |
7509 | if (name[1] == 'i' && | |
7510 | name[2] == 'e') | |
7511 | { /* tie */ | |
7512 | return KEY_tie; | |
7513 | } | |
7514 | ||
7515 | goto unknown; | |
7516 | ||
7517 | case 'u': | |
7518 | if (name[1] == 's' && | |
7519 | name[2] == 'e') | |
7520 | { /* use */ | |
7521 | return KEY_use; | |
7522 | } | |
7523 | ||
7524 | goto unknown; | |
7525 | ||
7526 | case 'v': | |
7527 | if (name[1] == 'e' && | |
7528 | name[2] == 'c') | |
7529 | { /* vec */ | |
7530 | return -KEY_vec; | |
7531 | } | |
7532 | ||
7533 | goto unknown; | |
7534 | ||
7535 | case 'x': | |
7536 | if (name[1] == 'o' && | |
7537 | name[2] == 'r') | |
7538 | { /* xor */ | |
7539 | return -KEY_xor; | |
7540 | } | |
7541 | ||
7542 | goto unknown; | |
7543 | ||
7544 | default: | |
7545 | goto unknown; | |
e2e1dd5a | 7546 | } |
4c3bbe0f | 7547 | |
0d863452 | 7548 | case 4: /* 41 tokens of length 4 */ |
4c3bbe0f | 7549 | switch (name[0]) |
e2e1dd5a | 7550 | { |
4c3bbe0f MHM |
7551 | case 'C': |
7552 | if (name[1] == 'O' && | |
7553 | name[2] == 'R' && | |
7554 | name[3] == 'E') | |
7555 | { /* CORE */ | |
7556 | return -KEY_CORE; | |
7557 | } | |
7558 | ||
7559 | goto unknown; | |
7560 | ||
7561 | case 'I': | |
7562 | if (name[1] == 'N' && | |
7563 | name[2] == 'I' && | |
7564 | name[3] == 'T') | |
7565 | { /* INIT */ | |
7566 | return KEY_INIT; | |
7567 | } | |
7568 | ||
7569 | goto unknown; | |
7570 | ||
7571 | case 'b': | |
7572 | if (name[1] == 'i' && | |
7573 | name[2] == 'n' && | |
7574 | name[3] == 'd') | |
7575 | { /* bind */ | |
7576 | return -KEY_bind; | |
7577 | } | |
7578 | ||
7579 | goto unknown; | |
7580 | ||
7581 | case 'c': | |
7582 | if (name[1] == 'h' && | |
7583 | name[2] == 'o' && | |
7584 | name[3] == 'p') | |
7585 | { /* chop */ | |
7586 | return -KEY_chop; | |
7587 | } | |
7588 | ||
7589 | goto unknown; | |
7590 | ||
7591 | case 'd': | |
7592 | if (name[1] == 'u' && | |
7593 | name[2] == 'm' && | |
7594 | name[3] == 'p') | |
7595 | { /* dump */ | |
7596 | return -KEY_dump; | |
7597 | } | |
7598 | ||
7599 | goto unknown; | |
7600 | ||
7601 | case 'e': | |
7602 | switch (name[1]) | |
7603 | { | |
7604 | case 'a': | |
7605 | if (name[2] == 'c' && | |
7606 | name[3] == 'h') | |
7607 | { /* each */ | |
7608 | return -KEY_each; | |
7609 | } | |
7610 | ||
7611 | goto unknown; | |
7612 | ||
7613 | case 'l': | |
7614 | if (name[2] == 's' && | |
7615 | name[3] == 'e') | |
7616 | { /* else */ | |
7617 | return KEY_else; | |
7618 | } | |
7619 | ||
7620 | goto unknown; | |
7621 | ||
7622 | case 'v': | |
7623 | if (name[2] == 'a' && | |
7624 | name[3] == 'l') | |
7625 | { /* eval */ | |
7626 | return KEY_eval; | |
7627 | } | |
7628 | ||
7629 | goto unknown; | |
7630 | ||
7631 | case 'x': | |
7632 | switch (name[2]) | |
7633 | { | |
7634 | case 'e': | |
7635 | if (name[3] == 'c') | |
7636 | { /* exec */ | |
7637 | return -KEY_exec; | |
7638 | } | |
7639 | ||
7640 | goto unknown; | |
7641 | ||
7642 | case 'i': | |
7643 | if (name[3] == 't') | |
7644 | { /* exit */ | |
7645 | return -KEY_exit; | |
7646 | } | |
7647 | ||
7648 | goto unknown; | |
7649 | ||
7650 | default: | |
7651 | goto unknown; | |
7652 | } | |
7653 | ||
7654 | default: | |
7655 | goto unknown; | |
7656 | } | |
7657 | ||
7658 | case 'f': | |
7659 | if (name[1] == 'o' && | |
7660 | name[2] == 'r' && | |
7661 | name[3] == 'k') | |
7662 | { /* fork */ | |
7663 | return -KEY_fork; | |
7664 | } | |
7665 | ||
7666 | goto unknown; | |
7667 | ||
7668 | case 'g': | |
7669 | switch (name[1]) | |
7670 | { | |
7671 | case 'e': | |
7672 | if (name[2] == 't' && | |
7673 | name[3] == 'c') | |
7674 | { /* getc */ | |
7675 | return -KEY_getc; | |
7676 | } | |
7677 | ||
7678 | goto unknown; | |
7679 | ||
7680 | case 'l': | |
7681 | if (name[2] == 'o' && | |
7682 | name[3] == 'b') | |
7683 | { /* glob */ | |
7684 | return KEY_glob; | |
7685 | } | |
7686 | ||
7687 | goto unknown; | |
7688 | ||
7689 | case 'o': | |
7690 | if (name[2] == 't' && | |
7691 | name[3] == 'o') | |
7692 | { /* goto */ | |
7693 | return KEY_goto; | |
7694 | } | |
7695 | ||
7696 | goto unknown; | |
7697 | ||
7698 | case 'r': | |
7699 | if (name[2] == 'e' && | |
7700 | name[3] == 'p') | |
7701 | { /* grep */ | |
7702 | return KEY_grep; | |
7703 | } | |
7704 | ||
7705 | goto unknown; | |
7706 | ||
7707 | default: | |
7708 | goto unknown; | |
7709 | } | |
7710 | ||
7711 | case 'j': | |
7712 | if (name[1] == 'o' && | |
7713 | name[2] == 'i' && | |
7714 | name[3] == 'n') | |
7715 | { /* join */ | |
7716 | return -KEY_join; | |
7717 | } | |
7718 | ||
7719 | goto unknown; | |
7720 | ||
7721 | case 'k': | |
7722 | switch (name[1]) | |
7723 | { | |
7724 | case 'e': | |
7725 | if (name[2] == 'y' && | |
7726 | name[3] == 's') | |
7727 | { /* keys */ | |
7728 | return -KEY_keys; | |
7729 | } | |
7730 | ||
7731 | goto unknown; | |
7732 | ||
7733 | case 'i': | |
7734 | if (name[2] == 'l' && | |
7735 | name[3] == 'l') | |
7736 | { /* kill */ | |
7737 | return -KEY_kill; | |
7738 | } | |
7739 | ||
7740 | goto unknown; | |
7741 | ||
7742 | default: | |
7743 | goto unknown; | |
7744 | } | |
7745 | ||
7746 | case 'l': | |
7747 | switch (name[1]) | |
7748 | { | |
7749 | case 'a': | |
7750 | if (name[2] == 's' && | |
7751 | name[3] == 't') | |
7752 | { /* last */ | |
7753 | return KEY_last; | |
7754 | } | |
7755 | ||
7756 | goto unknown; | |
7757 | ||
7758 | case 'i': | |
7759 | if (name[2] == 'n' && | |
7760 | name[3] == 'k') | |
7761 | { /* link */ | |
7762 | return -KEY_link; | |
7763 | } | |
7764 | ||
7765 | goto unknown; | |
7766 | ||
7767 | case 'o': | |
7768 | if (name[2] == 'c' && | |
7769 | name[3] == 'k') | |
7770 | { /* lock */ | |
7771 | return -KEY_lock; | |
7772 | } | |
7773 | ||
7774 | goto unknown; | |
7775 | ||
7776 | default: | |
7777 | goto unknown; | |
7778 | } | |
7779 | ||
7780 | case 'n': | |
7781 | if (name[1] == 'e' && | |
7782 | name[2] == 'x' && | |
7783 | name[3] == 't') | |
7784 | { /* next */ | |
7785 | return KEY_next; | |
7786 | } | |
7787 | ||
7788 | goto unknown; | |
7789 | ||
7790 | case 'o': | |
7791 | if (name[1] == 'p' && | |
7792 | name[2] == 'e' && | |
7793 | name[3] == 'n') | |
7794 | { /* open */ | |
7795 | return -KEY_open; | |
7796 | } | |
7797 | ||
7798 | goto unknown; | |
7799 | ||
7800 | case 'p': | |
7801 | switch (name[1]) | |
7802 | { | |
7803 | case 'a': | |
7804 | if (name[2] == 'c' && | |
7805 | name[3] == 'k') | |
7806 | { /* pack */ | |
7807 | return -KEY_pack; | |
7808 | } | |
7809 | ||
7810 | goto unknown; | |
7811 | ||
7812 | case 'i': | |
7813 | if (name[2] == 'p' && | |
7814 | name[3] == 'e') | |
7815 | { /* pipe */ | |
7816 | return -KEY_pipe; | |
7817 | } | |
7818 | ||
7819 | goto unknown; | |
7820 | ||
7821 | case 'u': | |
7822 | if (name[2] == 's' && | |
7823 | name[3] == 'h') | |
7824 | { /* push */ | |
7825 | return -KEY_push; | |
7826 | } | |
7827 | ||
7828 | goto unknown; | |
7829 | ||
7830 | default: | |
7831 | goto unknown; | |
7832 | } | |
7833 | ||
7834 | case 'r': | |
7835 | switch (name[1]) | |
7836 | { | |
7837 | case 'a': | |
7838 | if (name[2] == 'n' && | |
7839 | name[3] == 'd') | |
7840 | { /* rand */ | |
7841 | return -KEY_rand; | |
7842 | } | |
7843 | ||
7844 | goto unknown; | |
7845 | ||
7846 | case 'e': | |
7847 | switch (name[2]) | |
7848 | { | |
7849 | case 'a': | |
7850 | if (name[3] == 'd') | |
7851 | { /* read */ | |
7852 | return -KEY_read; | |
7853 | } | |
7854 | ||
7855 | goto unknown; | |
7856 | ||
7857 | case 'c': | |
7858 | if (name[3] == 'v') | |
7859 | { /* recv */ | |
7860 | return -KEY_recv; | |
7861 | } | |
7862 | ||
7863 | goto unknown; | |
7864 | ||
7865 | case 'd': | |
7866 | if (name[3] == 'o') | |
7867 | { /* redo */ | |
7868 | return KEY_redo; | |
7869 | } | |
7870 | ||
7871 | goto unknown; | |
7872 | ||
7873 | default: | |
7874 | goto unknown; | |
7875 | } | |
7876 | ||
7877 | default: | |
7878 | goto unknown; | |
7879 | } | |
7880 | ||
7881 | case 's': | |
7882 | switch (name[1]) | |
7883 | { | |
7884 | case 'e': | |
7885 | switch (name[2]) | |
7886 | { | |
7887 | case 'e': | |
7888 | if (name[3] == 'k') | |
7889 | { /* seek */ | |
7890 | return -KEY_seek; | |
7891 | } | |
7892 | ||
7893 | goto unknown; | |
7894 | ||
7895 | case 'n': | |
7896 | if (name[3] == 'd') | |
7897 | { /* send */ | |
7898 | return -KEY_send; | |
7899 | } | |
7900 | ||
7901 | goto unknown; | |
7902 | ||
7903 | default: | |
7904 | goto unknown; | |
7905 | } | |
7906 | ||
7907 | case 'o': | |
7908 | if (name[2] == 'r' && | |
7909 | name[3] == 't') | |
7910 | { /* sort */ | |
7911 | return KEY_sort; | |
7912 | } | |
7913 | ||
7914 | goto unknown; | |
7915 | ||
7916 | case 'q': | |
7917 | if (name[2] == 'r' && | |
7918 | name[3] == 't') | |
7919 | { /* sqrt */ | |
7920 | return -KEY_sqrt; | |
7921 | } | |
7922 | ||
7923 | goto unknown; | |
7924 | ||
7925 | case 't': | |
7926 | if (name[2] == 'a' && | |
7927 | name[3] == 't') | |
7928 | { /* stat */ | |
7929 | return -KEY_stat; | |
7930 | } | |
7931 | ||
7932 | goto unknown; | |
7933 | ||
7934 | default: | |
7935 | goto unknown; | |
7936 | } | |
7937 | ||
7938 | case 't': | |
7939 | switch (name[1]) | |
7940 | { | |
7941 | case 'e': | |
7942 | if (name[2] == 'l' && | |
7943 | name[3] == 'l') | |
7944 | { /* tell */ | |
7945 | return -KEY_tell; | |
7946 | } | |
7947 | ||
7948 | goto unknown; | |
7949 | ||
7950 | case 'i': | |
7951 | switch (name[2]) | |
7952 | { | |
7953 | case 'e': | |
7954 | if (name[3] == 'd') | |
7955 | { /* tied */ | |
7956 | return KEY_tied; | |
7957 | } | |
7958 | ||
7959 | goto unknown; | |
7960 | ||
7961 | case 'm': | |
7962 | if (name[3] == 'e') | |
7963 | { /* time */ | |
7964 | return -KEY_time; | |
7965 | } | |
7966 | ||
7967 | goto unknown; | |
7968 | ||
7969 | default: | |
7970 | goto unknown; | |
7971 | } | |
7972 | ||
7973 | default: | |
7974 | goto unknown; | |
7975 | } | |
7976 | ||
7977 | case 'w': | |
0d863452 | 7978 | switch (name[1]) |
4c3bbe0f | 7979 | { |
0d863452 | 7980 | case 'a': |
952306ac RGS |
7981 | switch (name[2]) |
7982 | { | |
7983 | case 'i': | |
7984 | if (name[3] == 't') | |
7985 | { /* wait */ | |
7986 | return -KEY_wait; | |
7987 | } | |
4c3bbe0f | 7988 | |
952306ac | 7989 | goto unknown; |
4c3bbe0f | 7990 | |
952306ac RGS |
7991 | case 'r': |
7992 | if (name[3] == 'n') | |
7993 | { /* warn */ | |
7994 | return -KEY_warn; | |
7995 | } | |
4c3bbe0f | 7996 | |
952306ac | 7997 | goto unknown; |
4c3bbe0f | 7998 | |
952306ac RGS |
7999 | default: |
8000 | goto unknown; | |
8001 | } | |
0d863452 RH |
8002 | |
8003 | case 'h': | |
8004 | if (name[2] == 'e' && | |
8005 | name[3] == 'n') | |
8006 | { /* when */ | |
5458a98a | 8007 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_when : 0); |
952306ac | 8008 | } |
4c3bbe0f | 8009 | |
952306ac | 8010 | goto unknown; |
4c3bbe0f | 8011 | |
952306ac RGS |
8012 | default: |
8013 | goto unknown; | |
8014 | } | |
4c3bbe0f | 8015 | |
0d863452 RH |
8016 | default: |
8017 | goto unknown; | |
8018 | } | |
8019 | ||
952306ac | 8020 | case 5: /* 39 tokens of length 5 */ |
4c3bbe0f | 8021 | switch (name[0]) |
e2e1dd5a | 8022 | { |
4c3bbe0f MHM |
8023 | case 'B': |
8024 | if (name[1] == 'E' && | |
8025 | name[2] == 'G' && | |
8026 | name[3] == 'I' && | |
8027 | name[4] == 'N') | |
8028 | { /* BEGIN */ | |
8029 | return KEY_BEGIN; | |
8030 | } | |
8031 | ||
8032 | goto unknown; | |
8033 | ||
8034 | case 'C': | |
8035 | if (name[1] == 'H' && | |
8036 | name[2] == 'E' && | |
8037 | name[3] == 'C' && | |
8038 | name[4] == 'K') | |
8039 | { /* CHECK */ | |
8040 | return KEY_CHECK; | |
8041 | } | |
8042 | ||
8043 | goto unknown; | |
8044 | ||
8045 | case 'a': | |
8046 | switch (name[1]) | |
8047 | { | |
8048 | case 'l': | |
8049 | if (name[2] == 'a' && | |
8050 | name[3] == 'r' && | |
8051 | name[4] == 'm') | |
8052 | { /* alarm */ | |
8053 | return -KEY_alarm; | |
8054 | } | |
8055 | ||
8056 | goto unknown; | |
8057 | ||
8058 | case 't': | |
8059 | if (name[2] == 'a' && | |
8060 | name[3] == 'n' && | |
8061 | name[4] == '2') | |
8062 | { /* atan2 */ | |
8063 | return -KEY_atan2; | |
8064 | } | |
8065 | ||
8066 | goto unknown; | |
8067 | ||
8068 | default: | |
8069 | goto unknown; | |
8070 | } | |
8071 | ||
8072 | case 'b': | |
0d863452 RH |
8073 | switch (name[1]) |
8074 | { | |
8075 | case 'l': | |
8076 | if (name[2] == 'e' && | |
952306ac RGS |
8077 | name[3] == 's' && |
8078 | name[4] == 's') | |
8079 | { /* bless */ | |
8080 | return -KEY_bless; | |
8081 | } | |
4c3bbe0f | 8082 | |
952306ac | 8083 | goto unknown; |
4c3bbe0f | 8084 | |
0d863452 RH |
8085 | case 'r': |
8086 | if (name[2] == 'e' && | |
8087 | name[3] == 'a' && | |
8088 | name[4] == 'k') | |
8089 | { /* break */ | |
5458a98a | 8090 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? -KEY_break : 0); |
0d863452 RH |
8091 | } |
8092 | ||
8093 | goto unknown; | |
8094 | ||
8095 | default: | |
8096 | goto unknown; | |
8097 | } | |
8098 | ||
4c3bbe0f MHM |
8099 | case 'c': |
8100 | switch (name[1]) | |
8101 | { | |
8102 | case 'h': | |
8103 | switch (name[2]) | |
8104 | { | |
8105 | case 'd': | |
8106 | if (name[3] == 'i' && | |
8107 | name[4] == 'r') | |
8108 | { /* chdir */ | |
8109 | return -KEY_chdir; | |
8110 | } | |
8111 | ||
8112 | goto unknown; | |
8113 | ||
8114 | case 'm': | |
8115 | if (name[3] == 'o' && | |
8116 | name[4] == 'd') | |
8117 | { /* chmod */ | |
8118 | return -KEY_chmod; | |
8119 | } | |
8120 | ||
8121 | goto unknown; | |
8122 | ||
8123 | case 'o': | |
8124 | switch (name[3]) | |
8125 | { | |
8126 | case 'm': | |
8127 | if (name[4] == 'p') | |
8128 | { /* chomp */ | |
8129 | return -KEY_chomp; | |
8130 | } | |
8131 | ||
8132 | goto unknown; | |
8133 | ||
8134 | case 'w': | |
8135 | if (name[4] == 'n') | |
8136 | { /* chown */ | |
8137 | return -KEY_chown; | |
8138 | } | |
8139 | ||
8140 | goto unknown; | |
8141 | ||
8142 | default: | |
8143 | goto unknown; | |
8144 | } | |
8145 | ||
8146 | default: | |
8147 | goto unknown; | |
8148 | } | |
8149 | ||
8150 | case 'l': | |
8151 | if (name[2] == 'o' && | |
8152 | name[3] == 's' && | |
8153 | name[4] == 'e') | |
8154 | { /* close */ | |
8155 | return -KEY_close; | |
8156 | } | |
8157 | ||
8158 | goto unknown; | |
8159 | ||
8160 | case 'r': | |
8161 | if (name[2] == 'y' && | |
8162 | name[3] == 'p' && | |
8163 | name[4] == 't') | |
8164 | { /* crypt */ | |
8165 | return -KEY_crypt; | |
8166 | } | |
8167 | ||
8168 | goto unknown; | |
8169 | ||
8170 | default: | |
8171 | goto unknown; | |
8172 | } | |
8173 | ||
8174 | case 'e': | |
8175 | if (name[1] == 'l' && | |
8176 | name[2] == 's' && | |
8177 | name[3] == 'i' && | |
8178 | name[4] == 'f') | |
8179 | { /* elsif */ | |
8180 | return KEY_elsif; | |
8181 | } | |
8182 | ||
8183 | goto unknown; | |
8184 | ||
8185 | case 'f': | |
8186 | switch (name[1]) | |
8187 | { | |
8188 | case 'c': | |
8189 | if (name[2] == 'n' && | |
8190 | name[3] == 't' && | |
8191 | name[4] == 'l') | |
8192 | { /* fcntl */ | |
8193 | return -KEY_fcntl; | |
8194 | } | |
8195 | ||
8196 | goto unknown; | |
8197 | ||
8198 | case 'l': | |
8199 | if (name[2] == 'o' && | |
8200 | name[3] == 'c' && | |
8201 | name[4] == 'k') | |
8202 | { /* flock */ | |
8203 | return -KEY_flock; | |
8204 | } | |
8205 | ||
8206 | goto unknown; | |
8207 | ||
8208 | default: | |
8209 | goto unknown; | |
8210 | } | |
8211 | ||
0d863452 RH |
8212 | case 'g': |
8213 | if (name[1] == 'i' && | |
8214 | name[2] == 'v' && | |
8215 | name[3] == 'e' && | |
8216 | name[4] == 'n') | |
8217 | { /* given */ | |
5458a98a | 8218 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_given : 0); |
0d863452 RH |
8219 | } |
8220 | ||
8221 | goto unknown; | |
8222 | ||
4c3bbe0f MHM |
8223 | case 'i': |
8224 | switch (name[1]) | |
8225 | { | |
8226 | case 'n': | |
8227 | if (name[2] == 'd' && | |
8228 | name[3] == 'e' && | |
8229 | name[4] == 'x') | |
8230 | { /* index */ | |
8231 | return -KEY_index; | |
8232 | } | |
8233 | ||
8234 | goto unknown; | |
8235 | ||
8236 | case 'o': | |
8237 | if (name[2] == 'c' && | |
8238 | name[3] == 't' && | |
8239 | name[4] == 'l') | |
8240 | { /* ioctl */ | |
8241 | return -KEY_ioctl; | |
8242 | } | |
8243 | ||
8244 | goto unknown; | |
8245 | ||
8246 | default: | |
8247 | goto unknown; | |
8248 | } | |
8249 | ||
8250 | case 'l': | |
8251 | switch (name[1]) | |
8252 | { | |
8253 | case 'o': | |
8254 | if (name[2] == 'c' && | |
8255 | name[3] == 'a' && | |
8256 | name[4] == 'l') | |
8257 | { /* local */ | |
8258 | return KEY_local; | |
8259 | } | |
8260 | ||
8261 | goto unknown; | |
8262 | ||
8263 | case 's': | |
8264 | if (name[2] == 't' && | |
8265 | name[3] == 'a' && | |
8266 | name[4] == 't') | |
8267 | { /* lstat */ | |
8268 | return -KEY_lstat; | |
8269 | } | |
8270 | ||
8271 | goto unknown; | |
8272 | ||
8273 | default: | |
8274 | goto unknown; | |
8275 | } | |
8276 | ||
8277 | case 'm': | |
8278 | if (name[1] == 'k' && | |
8279 | name[2] == 'd' && | |
8280 | name[3] == 'i' && | |
8281 | name[4] == 'r') | |
8282 | { /* mkdir */ | |
8283 | return -KEY_mkdir; | |
8284 | } | |
8285 | ||
8286 | goto unknown; | |
8287 | ||
8288 | case 'p': | |
8289 | if (name[1] == 'r' && | |
8290 | name[2] == 'i' && | |
8291 | name[3] == 'n' && | |
8292 | name[4] == 't') | |
8293 | { /* print */ | |
8294 | return KEY_print; | |
8295 | } | |
8296 | ||
8297 | goto unknown; | |
8298 | ||
8299 | case 'r': | |
8300 | switch (name[1]) | |
8301 | { | |
8302 | case 'e': | |
8303 | if (name[2] == 's' && | |
8304 | name[3] == 'e' && | |
8305 | name[4] == 't') | |
8306 | { /* reset */ | |
8307 | return -KEY_reset; | |
8308 | } | |
8309 | ||
8310 | goto unknown; | |
8311 | ||
8312 | case 'm': | |
8313 | if (name[2] == 'd' && | |
8314 | name[3] == 'i' && | |
8315 | name[4] == 'r') | |
8316 | { /* rmdir */ | |
8317 | return -KEY_rmdir; | |
8318 | } | |
8319 | ||
8320 | goto unknown; | |
8321 | ||
8322 | default: | |
8323 | goto unknown; | |
8324 | } | |
8325 | ||
8326 | case 's': | |
8327 | switch (name[1]) | |
8328 | { | |
8329 | case 'e': | |
8330 | if (name[2] == 'm' && | |
8331 | name[3] == 'o' && | |
8332 | name[4] == 'p') | |
8333 | { /* semop */ | |
8334 | return -KEY_semop; | |
8335 | } | |
8336 | ||
8337 | goto unknown; | |
8338 | ||
8339 | case 'h': | |
8340 | if (name[2] == 'i' && | |
8341 | name[3] == 'f' && | |
8342 | name[4] == 't') | |
8343 | { /* shift */ | |
8344 | return -KEY_shift; | |
8345 | } | |
8346 | ||
8347 | goto unknown; | |
8348 | ||
8349 | case 'l': | |
8350 | if (name[2] == 'e' && | |
8351 | name[3] == 'e' && | |
8352 | name[4] == 'p') | |
8353 | { /* sleep */ | |
8354 | return -KEY_sleep; | |
8355 | } | |
8356 | ||
8357 | goto unknown; | |
8358 | ||
8359 | case 'p': | |
8360 | if (name[2] == 'l' && | |
8361 | name[3] == 'i' && | |
8362 | name[4] == 't') | |
8363 | { /* split */ | |
8364 | return KEY_split; | |
8365 | } | |
8366 | ||
8367 | goto unknown; | |
8368 | ||
8369 | case 'r': | |
8370 | if (name[2] == 'a' && | |
8371 | name[3] == 'n' && | |
8372 | name[4] == 'd') | |
8373 | { /* srand */ | |
8374 | return -KEY_srand; | |
8375 | } | |
8376 | ||
8377 | goto unknown; | |
8378 | ||
8379 | case 't': | |
952306ac RGS |
8380 | switch (name[2]) |
8381 | { | |
8382 | case 'a': | |
8383 | if (name[3] == 't' && | |
8384 | name[4] == 'e') | |
8385 | { /* state */ | |
5458a98a | 8386 | return (all_keywords || FEATURE_IS_ENABLED("state") ? KEY_state : 0); |
952306ac | 8387 | } |
4c3bbe0f | 8388 | |
952306ac RGS |
8389 | goto unknown; |
8390 | ||
8391 | case 'u': | |
8392 | if (name[3] == 'd' && | |
8393 | name[4] == 'y') | |
8394 | { /* study */ | |
8395 | return KEY_study; | |
8396 | } | |
8397 | ||
8398 | goto unknown; | |
8399 | ||
8400 | default: | |
8401 | goto unknown; | |
8402 | } | |
4c3bbe0f MHM |
8403 | |
8404 | default: | |
8405 | goto unknown; | |
8406 | } | |
8407 | ||
8408 | case 't': | |
8409 | if (name[1] == 'i' && | |
8410 | name[2] == 'm' && | |
8411 | name[3] == 'e' && | |
8412 | name[4] == 's') | |
8413 | { /* times */ | |
8414 | return -KEY_times; | |
8415 | } | |
8416 | ||
8417 | goto unknown; | |
8418 | ||
8419 | case 'u': | |
8420 | switch (name[1]) | |
8421 | { | |
8422 | case 'm': | |
8423 | if (name[2] == 'a' && | |
8424 | name[3] == 's' && | |
8425 | name[4] == 'k') | |
8426 | { /* umask */ | |
8427 | return -KEY_umask; | |
8428 | } | |
8429 | ||
8430 | goto unknown; | |
8431 | ||
8432 | case 'n': | |
8433 | switch (name[2]) | |
8434 | { | |
8435 | case 'd': | |
8436 | if (name[3] == 'e' && | |
8437 | name[4] == 'f') | |
8438 | { /* undef */ | |
8439 | return KEY_undef; | |
8440 | } | |
8441 | ||
8442 | goto unknown; | |
8443 | ||
8444 | case 't': | |
8445 | if (name[3] == 'i') | |
8446 | { | |
8447 | switch (name[4]) | |
8448 | { | |
8449 | case 'e': | |
8450 | { /* untie */ | |
8451 | return KEY_untie; | |
8452 | } | |
8453 | ||
4c3bbe0f MHM |
8454 | case 'l': |
8455 | { /* until */ | |
8456 | return KEY_until; | |
8457 | } | |
8458 | ||
4c3bbe0f MHM |
8459 | default: |
8460 | goto unknown; | |
8461 | } | |
8462 | } | |
8463 | ||
8464 | goto unknown; | |
8465 | ||
8466 | default: | |
8467 | goto unknown; | |
8468 | } | |
8469 | ||
8470 | case 't': | |
8471 | if (name[2] == 'i' && | |
8472 | name[3] == 'm' && | |
8473 | name[4] == 'e') | |
8474 | { /* utime */ | |
8475 | return -KEY_utime; | |
8476 | } | |
8477 | ||
8478 | goto unknown; | |
8479 | ||
8480 | default: | |
8481 | goto unknown; | |
8482 | } | |
8483 | ||
8484 | case 'w': | |
8485 | switch (name[1]) | |
8486 | { | |
8487 | case 'h': | |
8488 | if (name[2] == 'i' && | |
8489 | name[3] == 'l' && | |
8490 | name[4] == 'e') | |
8491 | { /* while */ | |
8492 | return KEY_while; | |
8493 | } | |
8494 | ||
8495 | goto unknown; | |
8496 | ||
8497 | case 'r': | |
8498 | if (name[2] == 'i' && | |
8499 | name[3] == 't' && | |
8500 | name[4] == 'e') | |
8501 | { /* write */ | |
8502 | return -KEY_write; | |
8503 | } | |
8504 | ||
8505 | goto unknown; | |
8506 | ||
8507 | default: | |
8508 | goto unknown; | |
8509 | } | |
8510 | ||
8511 | default: | |
8512 | goto unknown; | |
e2e1dd5a | 8513 | } |
4c3bbe0f MHM |
8514 | |
8515 | case 6: /* 33 tokens of length 6 */ | |
8516 | switch (name[0]) | |
8517 | { | |
8518 | case 'a': | |
8519 | if (name[1] == 'c' && | |
8520 | name[2] == 'c' && | |
8521 | name[3] == 'e' && | |
8522 | name[4] == 'p' && | |
8523 | name[5] == 't') | |
8524 | { /* accept */ | |
8525 | return -KEY_accept; | |
8526 | } | |
8527 | ||
8528 | goto unknown; | |
8529 | ||
8530 | case 'c': | |
8531 | switch (name[1]) | |
8532 | { | |
8533 | case 'a': | |
8534 | if (name[2] == 'l' && | |
8535 | name[3] == 'l' && | |
8536 | name[4] == 'e' && | |
8537 | name[5] == 'r') | |
8538 | { /* caller */ | |
8539 | return -KEY_caller; | |
8540 | } | |
8541 | ||
8542 | goto unknown; | |
8543 | ||
8544 | case 'h': | |
8545 | if (name[2] == 'r' && | |
8546 | name[3] == 'o' && | |
8547 | name[4] == 'o' && | |
8548 | name[5] == 't') | |
8549 | { /* chroot */ | |
8550 | return -KEY_chroot; | |
8551 | } | |
8552 | ||
8553 | goto unknown; | |
8554 | ||
8555 | default: | |
8556 | goto unknown; | |
8557 | } | |
8558 | ||
8559 | case 'd': | |
8560 | if (name[1] == 'e' && | |
8561 | name[2] == 'l' && | |
8562 | name[3] == 'e' && | |
8563 | name[4] == 't' && | |
8564 | name[5] == 'e') | |
8565 | { /* delete */ | |
8566 | return KEY_delete; | |
8567 | } | |
8568 | ||
8569 | goto unknown; | |
8570 | ||
8571 | case 'e': | |
8572 | switch (name[1]) | |
8573 | { | |
8574 | case 'l': | |
8575 | if (name[2] == 's' && | |
8576 | name[3] == 'e' && | |
8577 | name[4] == 'i' && | |
8578 | name[5] == 'f') | |
8579 | { /* elseif */ | |
8580 | if(ckWARN_d(WARN_SYNTAX)) | |
8581 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); | |
8582 | } | |
8583 | ||
8584 | goto unknown; | |
8585 | ||
8586 | case 'x': | |
8587 | if (name[2] == 'i' && | |
8588 | name[3] == 's' && | |
8589 | name[4] == 't' && | |
8590 | name[5] == 's') | |
8591 | { /* exists */ | |
8592 | return KEY_exists; | |
8593 | } | |
8594 | ||
8595 | goto unknown; | |
8596 | ||
8597 | default: | |
8598 | goto unknown; | |
8599 | } | |
8600 | ||
8601 | case 'f': | |
8602 | switch (name[1]) | |
8603 | { | |
8604 | case 'i': | |
8605 | if (name[2] == 'l' && | |
8606 | name[3] == 'e' && | |
8607 | name[4] == 'n' && | |
8608 | name[5] == 'o') | |
8609 | { /* fileno */ | |
8610 | return -KEY_fileno; | |
8611 | } | |
8612 | ||
8613 | goto unknown; | |
8614 | ||
8615 | case 'o': | |
8616 | if (name[2] == 'r' && | |
8617 | name[3] == 'm' && | |
8618 | name[4] == 'a' && | |
8619 | name[5] == 't') | |
8620 | { /* format */ | |
8621 | return KEY_format; | |
8622 | } | |
8623 | ||
8624 | goto unknown; | |
8625 | ||
8626 | default: | |
8627 | goto unknown; | |
8628 | } | |
8629 | ||
8630 | case 'g': | |
8631 | if (name[1] == 'm' && | |
8632 | name[2] == 't' && | |
8633 | name[3] == 'i' && | |
8634 | name[4] == 'm' && | |
8635 | name[5] == 'e') | |
8636 | { /* gmtime */ | |
8637 | return -KEY_gmtime; | |
8638 | } | |
8639 | ||
8640 | goto unknown; | |
8641 | ||
8642 | case 'l': | |
8643 | switch (name[1]) | |
8644 | { | |
8645 | case 'e': | |
8646 | if (name[2] == 'n' && | |
8647 | name[3] == 'g' && | |
8648 | name[4] == 't' && | |
8649 | name[5] == 'h') | |
8650 | { /* length */ | |
8651 | return -KEY_length; | |
8652 | } | |
8653 | ||
8654 | goto unknown; | |
8655 | ||
8656 | case 'i': | |
8657 | if (name[2] == 's' && | |
8658 | name[3] == 't' && | |
8659 | name[4] == 'e' && | |
8660 | name[5] == 'n') | |
8661 | { /* listen */ | |
8662 | return -KEY_listen; | |
8663 | } | |
8664 | ||
8665 | goto unknown; | |
8666 | ||
8667 | default: | |
8668 | goto unknown; | |
8669 | } | |
8670 | ||
8671 | case 'm': | |
8672 | if (name[1] == 's' && | |
8673 | name[2] == 'g') | |
8674 | { | |
8675 | switch (name[3]) | |
8676 | { | |
8677 | case 'c': | |
8678 | if (name[4] == 't' && | |
8679 | name[5] == 'l') | |
8680 | { /* msgctl */ | |
8681 | return -KEY_msgctl; | |
8682 | } | |
8683 | ||
8684 | goto unknown; | |
8685 | ||
8686 | case 'g': | |
8687 | if (name[4] == 'e' && | |
8688 | name[5] == 't') | |
8689 | { /* msgget */ | |
8690 | return -KEY_msgget; | |
8691 | } | |
8692 | ||
8693 | goto unknown; | |
8694 | ||
8695 | case 'r': | |
8696 | if (name[4] == 'c' && | |
8697 | name[5] == 'v') | |
8698 | { /* msgrcv */ | |
8699 | return -KEY_msgrcv; | |
8700 | } | |
8701 | ||
8702 | goto unknown; | |
8703 | ||
8704 | case 's': | |
8705 | if (name[4] == 'n' && | |
8706 | name[5] == 'd') | |
8707 | { /* msgsnd */ | |
8708 | return -KEY_msgsnd; | |
8709 | } | |
8710 | ||
8711 | goto unknown; | |
8712 | ||
8713 | default: | |
8714 | goto unknown; | |
8715 | } | |
8716 | } | |
8717 | ||
8718 | goto unknown; | |
8719 | ||
8720 | case 'p': | |
8721 | if (name[1] == 'r' && | |
8722 | name[2] == 'i' && | |
8723 | name[3] == 'n' && | |
8724 | name[4] == 't' && | |
8725 | name[5] == 'f') | |
8726 | { /* printf */ | |
8727 | return KEY_printf; | |
8728 | } | |
8729 | ||
8730 | goto unknown; | |
8731 | ||
8732 | case 'r': | |
8733 | switch (name[1]) | |
8734 | { | |
8735 | case 'e': | |
8736 | switch (name[2]) | |
8737 | { | |
8738 | case 'n': | |
8739 | if (name[3] == 'a' && | |
8740 | name[4] == 'm' && | |
8741 | name[5] == 'e') | |
8742 | { /* rename */ | |
8743 | return -KEY_rename; | |
8744 | } | |
8745 | ||
8746 | goto unknown; | |
8747 | ||
8748 | case 't': | |
8749 | if (name[3] == 'u' && | |
8750 | name[4] == 'r' && | |
8751 | name[5] == 'n') | |
8752 | { /* return */ | |
8753 | return KEY_return; | |
8754 | } | |
8755 | ||
8756 | goto unknown; | |
8757 | ||
8758 | default: | |
8759 | goto unknown; | |
8760 | } | |
8761 | ||
8762 | case 'i': | |
8763 | if (name[2] == 'n' && | |
8764 | name[3] == 'd' && | |
8765 | name[4] == 'e' && | |
8766 | name[5] == 'x') | |
8767 | { /* rindex */ | |
8768 | return -KEY_rindex; | |
8769 | } | |
8770 | ||
8771 | goto unknown; | |
8772 | ||
8773 | default: | |
8774 | goto unknown; | |
8775 | } | |
8776 | ||
8777 | case 's': | |
8778 | switch (name[1]) | |
8779 | { | |
8780 | case 'c': | |
8781 | if (name[2] == 'a' && | |
8782 | name[3] == 'l' && | |
8783 | name[4] == 'a' && | |
8784 | name[5] == 'r') | |
8785 | { /* scalar */ | |
8786 | return KEY_scalar; | |
8787 | } | |
8788 | ||
8789 | goto unknown; | |
8790 | ||
8791 | case 'e': | |
8792 | switch (name[2]) | |
8793 | { | |
8794 | case 'l': | |
8795 | if (name[3] == 'e' && | |
8796 | name[4] == 'c' && | |
8797 | name[5] == 't') | |
8798 | { /* select */ | |
8799 | return -KEY_select; | |
8800 | } | |
8801 | ||
8802 | goto unknown; | |
8803 | ||
8804 | case 'm': | |
8805 | switch (name[3]) | |
8806 | { | |
8807 | case 'c': | |
8808 | if (name[4] == 't' && | |
8809 | name[5] == 'l') | |
8810 | { /* semctl */ | |
8811 | return -KEY_semctl; | |
8812 | } | |
8813 | ||
8814 | goto unknown; | |
8815 | ||
8816 | case 'g': | |
8817 | if (name[4] == 'e' && | |
8818 | name[5] == 't') | |
8819 | { /* semget */ | |
8820 | return -KEY_semget; | |
8821 | } | |
8822 | ||
8823 | goto unknown; | |
8824 | ||
8825 | default: | |
8826 | goto unknown; | |
8827 | } | |
8828 | ||
8829 | default: | |
8830 | goto unknown; | |
8831 | } | |
8832 | ||
8833 | case 'h': | |
8834 | if (name[2] == 'm') | |
8835 | { | |
8836 | switch (name[3]) | |
8837 | { | |
8838 | case 'c': | |
8839 | if (name[4] == 't' && | |
8840 | name[5] == 'l') | |
8841 | { /* shmctl */ | |
8842 | return -KEY_shmctl; | |
8843 | } | |
8844 | ||
8845 | goto unknown; | |
8846 | ||
8847 | case 'g': | |
8848 | if (name[4] == 'e' && | |
8849 | name[5] == 't') | |
8850 | { /* shmget */ | |
8851 | return -KEY_shmget; | |
8852 | } | |
8853 | ||
8854 | goto unknown; | |
8855 | ||
8856 | default: | |
8857 | goto unknown; | |
8858 | } | |
8859 | } | |
8860 | ||
8861 | goto unknown; | |
8862 | ||
8863 | case 'o': | |
8864 | if (name[2] == 'c' && | |
8865 | name[3] == 'k' && | |
8866 | name[4] == 'e' && | |
8867 | name[5] == 't') | |
8868 | { /* socket */ | |
8869 | return -KEY_socket; | |
8870 | } | |
8871 | ||
8872 | goto unknown; | |
8873 | ||
8874 | case 'p': | |
8875 | if (name[2] == 'l' && | |
8876 | name[3] == 'i' && | |
8877 | name[4] == 'c' && | |
8878 | name[5] == 'e') | |
8879 | { /* splice */ | |
8880 | return -KEY_splice; | |
8881 | } | |
8882 | ||
8883 | goto unknown; | |
8884 | ||
8885 | case 'u': | |
8886 | if (name[2] == 'b' && | |
8887 | name[3] == 's' && | |
8888 | name[4] == 't' && | |
8889 | name[5] == 'r') | |
8890 | { /* substr */ | |
8891 | return -KEY_substr; | |
8892 | } | |
8893 | ||
8894 | goto unknown; | |
8895 | ||
8896 | case 'y': | |
8897 | if (name[2] == 's' && | |
8898 | name[3] == 't' && | |
8899 | name[4] == 'e' && | |
8900 | name[5] == 'm') | |
8901 | { /* system */ | |
8902 | return -KEY_system; | |
8903 | } | |
8904 | ||
8905 | goto unknown; | |
8906 | ||
8907 | default: | |
8908 | goto unknown; | |
8909 | } | |
8910 | ||
8911 | case 'u': | |
8912 | if (name[1] == 'n') | |
8913 | { | |
8914 | switch (name[2]) | |
8915 | { | |
8916 | case 'l': | |
8917 | switch (name[3]) | |
8918 | { | |
8919 | case 'e': | |
8920 | if (name[4] == 's' && | |
8921 | name[5] == 's') | |
8922 | { /* unless */ | |
8923 | return KEY_unless; | |
8924 | } | |
8925 | ||
8926 | goto unknown; | |
8927 | ||
8928 | case 'i': | |
8929 | if (name[4] == 'n' && | |
8930 | name[5] == 'k') | |
8931 | { /* unlink */ | |
8932 | return -KEY_unlink; | |
8933 | } | |
8934 | ||
8935 | goto unknown; | |
8936 | ||
8937 | default: | |
8938 | goto unknown; | |
8939 | } | |
8940 | ||
8941 | case 'p': | |
8942 | if (name[3] == 'a' && | |
8943 | name[4] == 'c' && | |
8944 | name[5] == 'k') | |
8945 | { /* unpack */ | |
8946 | return -KEY_unpack; | |
8947 | } | |
8948 | ||
8949 | goto unknown; | |
8950 | ||
8951 | default: | |
8952 | goto unknown; | |
8953 | } | |
8954 | } | |
8955 | ||
8956 | goto unknown; | |
8957 | ||
8958 | case 'v': | |
8959 | if (name[1] == 'a' && | |
8960 | name[2] == 'l' && | |
8961 | name[3] == 'u' && | |
8962 | name[4] == 'e' && | |
8963 | name[5] == 's') | |
8964 | { /* values */ | |
8965 | return -KEY_values; | |
8966 | } | |
8967 | ||
8968 | goto unknown; | |
8969 | ||
8970 | default: | |
8971 | goto unknown; | |
e2e1dd5a | 8972 | } |
4c3bbe0f | 8973 | |
0d863452 | 8974 | case 7: /* 29 tokens of length 7 */ |
4c3bbe0f MHM |
8975 | switch (name[0]) |
8976 | { | |
8977 | case 'D': | |
8978 | if (name[1] == 'E' && | |
8979 | name[2] == 'S' && | |
8980 | name[3] == 'T' && | |
8981 | name[4] == 'R' && | |
8982 | name[5] == 'O' && | |
8983 | name[6] == 'Y') | |
8984 | { /* DESTROY */ | |
8985 | return KEY_DESTROY; | |
8986 | } | |
8987 | ||
8988 | goto unknown; | |
8989 | ||
8990 | case '_': | |
8991 | if (name[1] == '_' && | |
8992 | name[2] == 'E' && | |
8993 | name[3] == 'N' && | |
8994 | name[4] == 'D' && | |
8995 | name[5] == '_' && | |
8996 | name[6] == '_') | |
8997 | { /* __END__ */ | |
8998 | return KEY___END__; | |
8999 | } | |
9000 | ||
9001 | goto unknown; | |
9002 | ||
9003 | case 'b': | |
9004 | if (name[1] == 'i' && | |
9005 | name[2] == 'n' && | |
9006 | name[3] == 'm' && | |
9007 | name[4] == 'o' && | |
9008 | name[5] == 'd' && | |
9009 | name[6] == 'e') | |
9010 | { /* binmode */ | |
9011 | return -KEY_binmode; | |
9012 | } | |
9013 | ||
9014 | goto unknown; | |
9015 | ||
9016 | case 'c': | |
9017 | if (name[1] == 'o' && | |
9018 | name[2] == 'n' && | |
9019 | name[3] == 'n' && | |
9020 | name[4] == 'e' && | |
9021 | name[5] == 'c' && | |
9022 | name[6] == 't') | |
9023 | { /* connect */ | |
9024 | return -KEY_connect; | |
9025 | } | |
9026 | ||
9027 | goto unknown; | |
9028 | ||
9029 | case 'd': | |
9030 | switch (name[1]) | |
9031 | { | |
9032 | case 'b': | |
9033 | if (name[2] == 'm' && | |
9034 | name[3] == 'o' && | |
9035 | name[4] == 'p' && | |
9036 | name[5] == 'e' && | |
9037 | name[6] == 'n') | |
9038 | { /* dbmopen */ | |
9039 | return -KEY_dbmopen; | |
9040 | } | |
9041 | ||
9042 | goto unknown; | |
9043 | ||
9044 | case 'e': | |
0d863452 RH |
9045 | if (name[2] == 'f') |
9046 | { | |
9047 | switch (name[3]) | |
9048 | { | |
9049 | case 'a': | |
9050 | if (name[4] == 'u' && | |
9051 | name[5] == 'l' && | |
9052 | name[6] == 't') | |
9053 | { /* default */ | |
5458a98a | 9054 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_default : 0); |
0d863452 RH |
9055 | } |
9056 | ||
9057 | goto unknown; | |
9058 | ||
9059 | case 'i': | |
9060 | if (name[4] == 'n' && | |
952306ac RGS |
9061 | name[5] == 'e' && |
9062 | name[6] == 'd') | |
9063 | { /* defined */ | |
9064 | return KEY_defined; | |
9065 | } | |
4c3bbe0f | 9066 | |
952306ac | 9067 | goto unknown; |
4c3bbe0f | 9068 | |
952306ac RGS |
9069 | default: |
9070 | goto unknown; | |
9071 | } | |
0d863452 RH |
9072 | } |
9073 | ||
9074 | goto unknown; | |
9075 | ||
9076 | default: | |
9077 | goto unknown; | |
9078 | } | |
4c3bbe0f MHM |
9079 | |
9080 | case 'f': | |
9081 | if (name[1] == 'o' && | |
9082 | name[2] == 'r' && | |
9083 | name[3] == 'e' && | |
9084 | name[4] == 'a' && | |
9085 | name[5] == 'c' && | |
9086 | name[6] == 'h') | |
9087 | { /* foreach */ | |
9088 | return KEY_foreach; | |
9089 | } | |
9090 | ||
9091 | goto unknown; | |
9092 | ||
9093 | case 'g': | |
9094 | if (name[1] == 'e' && | |
9095 | name[2] == 't' && | |
9096 | name[3] == 'p') | |
9097 | { | |
9098 | switch (name[4]) | |
9099 | { | |
9100 | case 'g': | |
9101 | if (name[5] == 'r' && | |
9102 | name[6] == 'p') | |
9103 | { /* getpgrp */ | |
9104 | return -KEY_getpgrp; | |
9105 | } | |
9106 | ||
9107 | goto unknown; | |
9108 | ||
9109 | case 'p': | |
9110 | if (name[5] == 'i' && | |
9111 | name[6] == 'd') | |
9112 | { /* getppid */ | |
9113 | return -KEY_getppid; | |
9114 | } | |
9115 | ||
9116 | goto unknown; | |
9117 | ||
9118 | default: | |
9119 | goto unknown; | |
9120 | } | |
9121 | } | |
9122 | ||
9123 | goto unknown; | |
9124 | ||
9125 | case 'l': | |
9126 | if (name[1] == 'c' && | |
9127 | name[2] == 'f' && | |
9128 | name[3] == 'i' && | |
9129 | name[4] == 'r' && | |
9130 | name[5] == 's' && | |
9131 | name[6] == 't') | |
9132 | { /* lcfirst */ | |
9133 | return -KEY_lcfirst; | |
9134 | } | |
9135 | ||
9136 | goto unknown; | |
9137 | ||
9138 | case 'o': | |
9139 | if (name[1] == 'p' && | |
9140 | name[2] == 'e' && | |
9141 | name[3] == 'n' && | |
9142 | name[4] == 'd' && | |
9143 | name[5] == 'i' && | |
9144 | name[6] == 'r') | |
9145 | { /* opendir */ | |
9146 | return -KEY_opendir; | |
9147 | } | |
9148 | ||
9149 | goto unknown; | |
9150 | ||
9151 | case 'p': | |
9152 | if (name[1] == 'a' && | |
9153 | name[2] == 'c' && | |
9154 | name[3] == 'k' && | |
9155 | name[4] == 'a' && | |
9156 | name[5] == 'g' && | |
9157 | name[6] == 'e') | |
9158 | { /* package */ | |
9159 | return KEY_package; | |
9160 | } | |
9161 | ||
9162 | goto unknown; | |
9163 | ||
9164 | case 'r': | |
9165 | if (name[1] == 'e') | |
9166 | { | |
9167 | switch (name[2]) | |
9168 | { | |
9169 | case 'a': | |
9170 | if (name[3] == 'd' && | |
9171 | name[4] == 'd' && | |
9172 | name[5] == 'i' && | |
9173 | name[6] == 'r') | |
9174 | { /* readdir */ | |
9175 | return -KEY_readdir; | |
9176 | } | |
9177 | ||
9178 | goto unknown; | |
9179 | ||
9180 | case 'q': | |
9181 | if (name[3] == 'u' && | |
9182 | name[4] == 'i' && | |
9183 | name[5] == 'r' && | |
9184 | name[6] == 'e') | |
9185 | { /* require */ | |
9186 | return KEY_require; | |
9187 | } | |
9188 | ||
9189 | goto unknown; | |
9190 | ||
9191 | case 'v': | |
9192 | if (name[3] == 'e' && | |
9193 | name[4] == 'r' && | |
9194 | name[5] == 's' && | |
9195 | name[6] == 'e') | |
9196 | { /* reverse */ | |
9197 | return -KEY_reverse; | |
9198 | } | |
9199 | ||
9200 | goto unknown; | |
9201 | ||
9202 | default: | |
9203 | goto unknown; | |
9204 | } | |
9205 | } | |
9206 | ||
9207 | goto unknown; | |
9208 | ||
9209 | case 's': | |
9210 | switch (name[1]) | |
9211 | { | |
9212 | case 'e': | |
9213 | switch (name[2]) | |
9214 | { | |
9215 | case 'e': | |
9216 | if (name[3] == 'k' && | |
9217 | name[4] == 'd' && | |
9218 | name[5] == 'i' && | |
9219 | name[6] == 'r') | |
9220 | { /* seekdir */ | |
9221 | return -KEY_seekdir; | |
9222 | } | |
9223 | ||
9224 | goto unknown; | |
9225 | ||
9226 | case 't': | |
9227 | if (name[3] == 'p' && | |
9228 | name[4] == 'g' && | |
9229 | name[5] == 'r' && | |
9230 | name[6] == 'p') | |
9231 | { /* setpgrp */ | |
9232 | return -KEY_setpgrp; | |
9233 | } | |
9234 | ||
9235 | goto unknown; | |
9236 | ||
9237 | default: | |
9238 | goto unknown; | |
9239 | } | |
9240 | ||
9241 | case 'h': | |
9242 | if (name[2] == 'm' && | |
9243 | name[3] == 'r' && | |
9244 | name[4] == 'e' && | |
9245 | name[5] == 'a' && | |
9246 | name[6] == 'd') | |
9247 | { /* shmread */ | |
9248 | return -KEY_shmread; | |
9249 | } | |
9250 | ||
9251 | goto unknown; | |
9252 | ||
9253 | case 'p': | |
9254 | if (name[2] == 'r' && | |
9255 | name[3] == 'i' && | |
9256 | name[4] == 'n' && | |
9257 | name[5] == 't' && | |
9258 | name[6] == 'f') | |
9259 | { /* sprintf */ | |
9260 | return -KEY_sprintf; | |
9261 | } | |
9262 | ||
9263 | goto unknown; | |
9264 | ||
9265 | case 'y': | |
9266 | switch (name[2]) | |
9267 | { | |
9268 | case 'm': | |
9269 | if (name[3] == 'l' && | |
9270 | name[4] == 'i' && | |
9271 | name[5] == 'n' && | |
9272 | name[6] == 'k') | |
9273 | { /* symlink */ | |
9274 | return -KEY_symlink; | |
9275 | } | |
9276 | ||
9277 | goto unknown; | |
9278 | ||
9279 | case 's': | |
9280 | switch (name[3]) | |
9281 | { | |
9282 | case 'c': | |
9283 | if (name[4] == 'a' && | |
9284 | name[5] == 'l' && | |
9285 | name[6] == 'l') | |
9286 | { /* syscall */ | |
9287 | return -KEY_syscall; | |
9288 | } | |
9289 | ||
9290 | goto unknown; | |
9291 | ||
9292 | case 'o': | |
9293 | if (name[4] == 'p' && | |
9294 | name[5] == 'e' && | |
9295 | name[6] == 'n') | |
9296 | { /* sysopen */ | |
9297 | return -KEY_sysopen; | |
9298 | } | |
9299 | ||
9300 | goto unknown; | |
9301 | ||
9302 | case 'r': | |
9303 | if (name[4] == 'e' && | |
9304 | name[5] == 'a' && | |
9305 | name[6] == 'd') | |
9306 | { /* sysread */ | |
9307 | return -KEY_sysread; | |
9308 | } | |
9309 | ||
9310 | goto unknown; | |
9311 | ||
9312 | case 's': | |
9313 | if (name[4] == 'e' && | |
9314 | name[5] == 'e' && | |
9315 | name[6] == 'k') | |
9316 | { /* sysseek */ | |
9317 | return -KEY_sysseek; | |
9318 | } | |
9319 | ||
9320 | goto unknown; | |
9321 | ||
9322 | default: | |
9323 | goto unknown; | |
9324 | } | |
9325 | ||
9326 | default: | |
9327 | goto unknown; | |
9328 | } | |
9329 | ||
9330 | default: | |
9331 | goto unknown; | |
9332 | } | |
9333 | ||
9334 | case 't': | |
9335 | if (name[1] == 'e' && | |
9336 | name[2] == 'l' && | |
9337 | name[3] == 'l' && | |
9338 | name[4] == 'd' && | |
9339 | name[5] == 'i' && | |
9340 | name[6] == 'r') | |
9341 | { /* telldir */ | |
9342 | return -KEY_telldir; | |
9343 | } | |
9344 | ||
9345 | goto unknown; | |
9346 | ||
9347 | case 'u': | |
9348 | switch (name[1]) | |
9349 | { | |
9350 | case 'c': | |
9351 | if (name[2] == 'f' && | |
9352 | name[3] == 'i' && | |
9353 | name[4] == 'r' && | |
9354 | name[5] == 's' && | |
9355 | name[6] == 't') | |
9356 | { /* ucfirst */ | |
9357 | return -KEY_ucfirst; | |
9358 | } | |
9359 | ||
9360 | goto unknown; | |
9361 | ||
9362 | case 'n': | |
9363 | if (name[2] == 's' && | |
9364 | name[3] == 'h' && | |
9365 | name[4] == 'i' && | |
9366 | name[5] == 'f' && | |
9367 | name[6] == 't') | |
9368 | { /* unshift */ | |
9369 | return -KEY_unshift; | |
9370 | } | |
9371 | ||
9372 | goto unknown; | |
9373 | ||
9374 | default: | |
9375 | goto unknown; | |
9376 | } | |
9377 | ||
9378 | case 'w': | |
9379 | if (name[1] == 'a' && | |
9380 | name[2] == 'i' && | |
9381 | name[3] == 't' && | |
9382 | name[4] == 'p' && | |
9383 | name[5] == 'i' && | |
9384 | name[6] == 'd') | |
9385 | { /* waitpid */ | |
9386 | return -KEY_waitpid; | |
9387 | } | |
9388 | ||
9389 | goto unknown; | |
9390 | ||
9391 | default: | |
9392 | goto unknown; | |
9393 | } | |
9394 | ||
9395 | case 8: /* 26 tokens of length 8 */ | |
9396 | switch (name[0]) | |
9397 | { | |
9398 | case 'A': | |
9399 | if (name[1] == 'U' && | |
9400 | name[2] == 'T' && | |
9401 | name[3] == 'O' && | |
9402 | name[4] == 'L' && | |
9403 | name[5] == 'O' && | |
9404 | name[6] == 'A' && | |
9405 | name[7] == 'D') | |
9406 | { /* AUTOLOAD */ | |
9407 | return KEY_AUTOLOAD; | |
9408 | } | |
9409 | ||
9410 | goto unknown; | |
9411 | ||
9412 | case '_': | |
9413 | if (name[1] == '_') | |
9414 | { | |
9415 | switch (name[2]) | |
9416 | { | |
9417 | case 'D': | |
9418 | if (name[3] == 'A' && | |
9419 | name[4] == 'T' && | |
9420 | name[5] == 'A' && | |
9421 | name[6] == '_' && | |
9422 | name[7] == '_') | |
9423 | { /* __DATA__ */ | |
9424 | return KEY___DATA__; | |
9425 | } | |
9426 | ||
9427 | goto unknown; | |
9428 | ||
9429 | case 'F': | |
9430 | if (name[3] == 'I' && | |
9431 | name[4] == 'L' && | |
9432 | name[5] == 'E' && | |
9433 | name[6] == '_' && | |
9434 | name[7] == '_') | |
9435 | { /* __FILE__ */ | |
9436 | return -KEY___FILE__; | |
9437 | } | |
9438 | ||
9439 | goto unknown; | |
9440 | ||
9441 | case 'L': | |
9442 | if (name[3] == 'I' && | |
9443 | name[4] == 'N' && | |
9444 | name[5] == 'E' && | |
9445 | name[6] == '_' && | |
9446 | name[7] == '_') | |
9447 | { /* __LINE__ */ | |
9448 | return -KEY___LINE__; | |
9449 | } | |
9450 | ||
9451 | goto unknown; | |
9452 | ||
9453 | default: | |
9454 | goto unknown; | |
9455 | } | |
9456 | } | |
9457 | ||
9458 | goto unknown; | |
9459 | ||
9460 | case 'c': | |
9461 | switch (name[1]) | |
9462 | { | |
9463 | case 'l': | |
9464 | if (name[2] == 'o' && | |
9465 | name[3] == 's' && | |
9466 | name[4] == 'e' && | |
9467 | name[5] == 'd' && | |
9468 | name[6] == 'i' && | |
9469 | name[7] == 'r') | |
9470 | { /* closedir */ | |
9471 | return -KEY_closedir; | |
9472 | } | |
9473 | ||
9474 | goto unknown; | |
9475 | ||
9476 | case 'o': | |
9477 | if (name[2] == 'n' && | |
9478 | name[3] == 't' && | |
9479 | name[4] == 'i' && | |
9480 | name[5] == 'n' && | |
9481 | name[6] == 'u' && | |
9482 | name[7] == 'e') | |
9483 | { /* continue */ | |
9484 | return -KEY_continue; | |
9485 | } | |
9486 | ||
9487 | goto unknown; | |
9488 | ||
9489 | default: | |
9490 | goto unknown; | |
9491 | } | |
9492 | ||
9493 | case 'd': | |
9494 | if (name[1] == 'b' && | |
9495 | name[2] == 'm' && | |
9496 | name[3] == 'c' && | |
9497 | name[4] == 'l' && | |
9498 | name[5] == 'o' && | |
9499 | name[6] == 's' && | |
9500 | name[7] == 'e') | |
9501 | { /* dbmclose */ | |
9502 | return -KEY_dbmclose; | |
9503 | } | |
9504 | ||
9505 | goto unknown; | |
9506 | ||
9507 | case 'e': | |
9508 | if (name[1] == 'n' && | |
9509 | name[2] == 'd') | |
9510 | { | |
9511 | switch (name[3]) | |
9512 | { | |
9513 | case 'g': | |
9514 | if (name[4] == 'r' && | |
9515 | name[5] == 'e' && | |
9516 | name[6] == 'n' && | |
9517 | name[7] == 't') | |
9518 | { /* endgrent */ | |
9519 | return -KEY_endgrent; | |
9520 | } | |
9521 | ||
9522 | goto unknown; | |
9523 | ||
9524 | case 'p': | |
9525 | if (name[4] == 'w' && | |
9526 | name[5] == 'e' && | |
9527 | name[6] == 'n' && | |
9528 | name[7] == 't') | |
9529 | { /* endpwent */ | |
9530 | return -KEY_endpwent; | |
9531 | } | |
9532 | ||
9533 | goto unknown; | |
9534 | ||
9535 | default: | |
9536 | goto unknown; | |
9537 | } | |
9538 | } | |
9539 | ||
9540 | goto unknown; | |
9541 | ||
9542 | case 'f': | |
9543 | if (name[1] == 'o' && | |
9544 | name[2] == 'r' && | |
9545 | name[3] == 'm' && | |
9546 | name[4] == 'l' && | |
9547 | name[5] == 'i' && | |
9548 | name[6] == 'n' && | |
9549 | name[7] == 'e') | |
9550 | { /* formline */ | |
9551 | return -KEY_formline; | |
9552 | } | |
9553 | ||
9554 | goto unknown; | |
9555 | ||
9556 | case 'g': | |
9557 | if (name[1] == 'e' && | |
9558 | name[2] == 't') | |
9559 | { | |
9560 | switch (name[3]) | |
9561 | { | |
9562 | case 'g': | |
9563 | if (name[4] == 'r') | |
9564 | { | |
9565 | switch (name[5]) | |
9566 | { | |
9567 | case 'e': | |
9568 | if (name[6] == 'n' && | |
9569 | name[7] == 't') | |
9570 | { /* getgrent */ | |
9571 | return -KEY_getgrent; | |
9572 | } | |
9573 | ||
9574 | goto unknown; | |
9575 | ||
9576 | case 'g': | |
9577 | if (name[6] == 'i' && | |
9578 | name[7] == 'd') | |
9579 | { /* getgrgid */ | |
9580 | return -KEY_getgrgid; | |
9581 | } | |
9582 | ||
9583 | goto unknown; | |
9584 | ||
9585 | case 'n': | |
9586 | if (name[6] == 'a' && | |
9587 | name[7] == 'm') | |
9588 | { /* getgrnam */ | |
9589 | return -KEY_getgrnam; | |
9590 | } | |
9591 | ||
9592 | goto unknown; | |
9593 | ||
9594 | default: | |
9595 | goto unknown; | |
9596 | } | |
9597 | } | |
9598 | ||
9599 | goto unknown; | |
9600 | ||
9601 | case 'l': | |
9602 | if (name[4] == 'o' && | |
9603 | name[5] == 'g' && | |
9604 | name[6] == 'i' && | |
9605 | name[7] == 'n') | |
9606 | { /* getlogin */ | |
9607 | return -KEY_getlogin; | |
9608 | } | |
9609 | ||
9610 | goto unknown; | |
9611 | ||
9612 | case 'p': | |
9613 | if (name[4] == 'w') | |
9614 | { | |
9615 | switch (name[5]) | |
9616 | { | |
9617 | case 'e': | |
9618 | if (name[6] == 'n' && | |
9619 | name[7] == 't') | |
9620 | { /* getpwent */ | |
9621 | return -KEY_getpwent; | |
9622 | } | |
9623 | ||
9624 | goto unknown; | |
9625 | ||
9626 | case 'n': | |
9627 | if (name[6] == 'a' && | |
9628 | name[7] == 'm') | |
9629 | { /* getpwnam */ | |
9630 | return -KEY_getpwnam; | |
9631 | } | |
9632 | ||
9633 | goto unknown; | |
9634 | ||
9635 | case 'u': | |
9636 | if (name[6] == 'i' && | |
9637 | name[7] == 'd') | |
9638 | { /* getpwuid */ | |
9639 | return -KEY_getpwuid; | |
9640 | } | |
9641 | ||
9642 | goto unknown; | |
9643 | ||
9644 | default: | |
9645 | goto unknown; | |
9646 | } | |
9647 | } | |
9648 | ||
9649 | goto unknown; | |
9650 | ||
9651 | default: | |
9652 | goto unknown; | |
9653 | } | |
9654 | } | |
9655 | ||
9656 | goto unknown; | |
9657 | ||
9658 | case 'r': | |
9659 | if (name[1] == 'e' && | |
9660 | name[2] == 'a' && | |
9661 | name[3] == 'd') | |
9662 | { | |
9663 | switch (name[4]) | |
9664 | { | |
9665 | case 'l': | |
9666 | if (name[5] == 'i' && | |
9667 | name[6] == 'n') | |
9668 | { | |
9669 | switch (name[7]) | |
9670 | { | |
9671 | case 'e': | |
9672 | { /* readline */ | |
9673 | return -KEY_readline; | |
9674 | } | |
9675 | ||
4c3bbe0f MHM |
9676 | case 'k': |
9677 | { /* readlink */ | |
9678 | return -KEY_readlink; | |
9679 | } | |
9680 | ||
4c3bbe0f MHM |
9681 | default: |
9682 | goto unknown; | |
9683 | } | |
9684 | } | |
9685 | ||
9686 | goto unknown; | |
9687 | ||
9688 | case 'p': | |
9689 | if (name[5] == 'i' && | |
9690 | name[6] == 'p' && | |
9691 | name[7] == 'e') | |
9692 | { /* readpipe */ | |
9693 | return -KEY_readpipe; | |
9694 | } | |
9695 | ||
9696 | goto unknown; | |
9697 | ||
9698 | default: | |
9699 | goto unknown; | |
9700 | } | |
9701 | } | |
9702 | ||
9703 | goto unknown; | |
9704 | ||
9705 | case 's': | |
9706 | switch (name[1]) | |
9707 | { | |
9708 | case 'e': | |
9709 | if (name[2] == 't') | |
9710 | { | |
9711 | switch (name[3]) | |
9712 | { | |
9713 | case 'g': | |
9714 | if (name[4] == 'r' && | |
9715 | name[5] == 'e' && | |
9716 | name[6] == 'n' && | |
9717 | name[7] == 't') | |
9718 | { /* setgrent */ | |
9719 | return -KEY_setgrent; | |
9720 | } | |
9721 | ||
9722 | goto unknown; | |
9723 | ||
9724 | case 'p': | |
9725 | if (name[4] == 'w' && | |
9726 | name[5] == 'e' && | |
9727 | name[6] == 'n' && | |
9728 | name[7] == 't') | |
9729 | { /* setpwent */ | |
9730 | return -KEY_setpwent; | |
9731 | } | |
9732 | ||
9733 | goto unknown; | |
9734 | ||
9735 | default: | |
9736 | goto unknown; | |
9737 | } | |
9738 | } | |
9739 | ||
9740 | goto unknown; | |
9741 | ||
9742 | case 'h': | |
9743 | switch (name[2]) | |
9744 | { | |
9745 | case 'm': | |
9746 | if (name[3] == 'w' && | |
9747 | name[4] == 'r' && | |
9748 | name[5] == 'i' && | |
9749 | name[6] == 't' && | |
9750 | name[7] == 'e') | |
9751 | { /* shmwrite */ | |
9752 | return -KEY_shmwrite; | |
9753 | } | |
9754 | ||
9755 | goto unknown; | |
9756 | ||
9757 | case 'u': | |
9758 | if (name[3] == 't' && | |
9759 | name[4] == 'd' && | |
9760 | name[5] == 'o' && | |
9761 | name[6] == 'w' && | |
9762 | name[7] == 'n') | |
9763 | { /* shutdown */ | |
9764 | return -KEY_shutdown; | |
9765 | } | |
9766 | ||
9767 | goto unknown; | |
9768 | ||
9769 | default: | |
9770 | goto unknown; | |
9771 | } | |
9772 | ||
9773 | case 'y': | |
9774 | if (name[2] == 's' && | |
9775 | name[3] == 'w' && | |
9776 | name[4] == 'r' && | |
9777 | name[5] == 'i' && | |
9778 | name[6] == 't' && | |
9779 | name[7] == 'e') | |
9780 | { /* syswrite */ | |
9781 | return -KEY_syswrite; | |
9782 | } | |
9783 | ||
9784 | goto unknown; | |
9785 | ||
9786 | default: | |
9787 | goto unknown; | |
9788 | } | |
9789 | ||
9790 | case 't': | |
9791 | if (name[1] == 'r' && | |
9792 | name[2] == 'u' && | |
9793 | name[3] == 'n' && | |
9794 | name[4] == 'c' && | |
9795 | name[5] == 'a' && | |
9796 | name[6] == 't' && | |
9797 | name[7] == 'e') | |
9798 | { /* truncate */ | |
9799 | return -KEY_truncate; | |
9800 | } | |
9801 | ||
9802 | goto unknown; | |
9803 | ||
9804 | default: | |
9805 | goto unknown; | |
9806 | } | |
9807 | ||
3c10abe3 | 9808 | case 9: /* 9 tokens of length 9 */ |
4c3bbe0f MHM |
9809 | switch (name[0]) |
9810 | { | |
3c10abe3 AG |
9811 | case 'U': |
9812 | if (name[1] == 'N' && | |
9813 | name[2] == 'I' && | |
9814 | name[3] == 'T' && | |
9815 | name[4] == 'C' && | |
9816 | name[5] == 'H' && | |
9817 | name[6] == 'E' && | |
9818 | name[7] == 'C' && | |
9819 | name[8] == 'K') | |
9820 | { /* UNITCHECK */ | |
9821 | return KEY_UNITCHECK; | |
9822 | } | |
9823 | ||
9824 | goto unknown; | |
9825 | ||
4c3bbe0f MHM |
9826 | case 'e': |
9827 | if (name[1] == 'n' && | |
9828 | name[2] == 'd' && | |
9829 | name[3] == 'n' && | |
9830 | name[4] == 'e' && | |
9831 | name[5] == 't' && | |
9832 | name[6] == 'e' && | |
9833 | name[7] == 'n' && | |
9834 | name[8] == 't') | |
9835 | { /* endnetent */ | |
9836 | return -KEY_endnetent; | |
9837 | } | |
9838 | ||
9839 | goto unknown; | |
9840 | ||
9841 | case 'g': | |
9842 | if (name[1] == 'e' && | |
9843 | name[2] == 't' && | |
9844 | name[3] == 'n' && | |
9845 | name[4] == 'e' && | |
9846 | name[5] == 't' && | |
9847 | name[6] == 'e' && | |
9848 | name[7] == 'n' && | |
9849 | name[8] == 't') | |
9850 | { /* getnetent */ | |
9851 | return -KEY_getnetent; | |
9852 | } | |
9853 | ||
9854 | goto unknown; | |
9855 | ||
9856 | case 'l': | |
9857 | if (name[1] == 'o' && | |
9858 | name[2] == 'c' && | |
9859 | name[3] == 'a' && | |
9860 | name[4] == 'l' && | |
9861 | name[5] == 't' && | |
9862 | name[6] == 'i' && | |
9863 | name[7] == 'm' && | |
9864 | name[8] == 'e') | |
9865 | { /* localtime */ | |
9866 | return -KEY_localtime; | |
9867 | } | |
9868 | ||
9869 | goto unknown; | |
9870 | ||
9871 | case 'p': | |
9872 | if (name[1] == 'r' && | |
9873 | name[2] == 'o' && | |
9874 | name[3] == 't' && | |
9875 | name[4] == 'o' && | |
9876 | name[5] == 't' && | |
9877 | name[6] == 'y' && | |
9878 | name[7] == 'p' && | |
9879 | name[8] == 'e') | |
9880 | { /* prototype */ | |
9881 | return KEY_prototype; | |
9882 | } | |
9883 | ||
9884 | goto unknown; | |
9885 | ||
9886 | case 'q': | |
9887 | if (name[1] == 'u' && | |
9888 | name[2] == 'o' && | |
9889 | name[3] == 't' && | |
9890 | name[4] == 'e' && | |
9891 | name[5] == 'm' && | |
9892 | name[6] == 'e' && | |
9893 | name[7] == 't' && | |
9894 | name[8] == 'a') | |
9895 | { /* quotemeta */ | |
9896 | return -KEY_quotemeta; | |
9897 | } | |
9898 | ||
9899 | goto unknown; | |
9900 | ||
9901 | case 'r': | |
9902 | if (name[1] == 'e' && | |
9903 | name[2] == 'w' && | |
9904 | name[3] == 'i' && | |
9905 | name[4] == 'n' && | |
9906 | name[5] == 'd' && | |
9907 | name[6] == 'd' && | |
9908 | name[7] == 'i' && | |
9909 | name[8] == 'r') | |
9910 | { /* rewinddir */ | |
9911 | return -KEY_rewinddir; | |
9912 | } | |
9913 | ||
9914 | goto unknown; | |
9915 | ||
9916 | case 's': | |
9917 | if (name[1] == 'e' && | |
9918 | name[2] == 't' && | |
9919 | name[3] == 'n' && | |
9920 | name[4] == 'e' && | |
9921 | name[5] == 't' && | |
9922 | name[6] == 'e' && | |
9923 | name[7] == 'n' && | |
9924 | name[8] == 't') | |
9925 | { /* setnetent */ | |
9926 | return -KEY_setnetent; | |
9927 | } | |
9928 | ||
9929 | goto unknown; | |
9930 | ||
9931 | case 'w': | |
9932 | if (name[1] == 'a' && | |
9933 | name[2] == 'n' && | |
9934 | name[3] == 't' && | |
9935 | name[4] == 'a' && | |
9936 | name[5] == 'r' && | |
9937 | name[6] == 'r' && | |
9938 | name[7] == 'a' && | |
9939 | name[8] == 'y') | |
9940 | { /* wantarray */ | |
9941 | return -KEY_wantarray; | |
9942 | } | |
9943 | ||
9944 | goto unknown; | |
9945 | ||
9946 | default: | |
9947 | goto unknown; | |
9948 | } | |
9949 | ||
9950 | case 10: /* 9 tokens of length 10 */ | |
9951 | switch (name[0]) | |
9952 | { | |
9953 | case 'e': | |
9954 | if (name[1] == 'n' && | |
9955 | name[2] == 'd') | |
9956 | { | |
9957 | switch (name[3]) | |
9958 | { | |
9959 | case 'h': | |
9960 | if (name[4] == 'o' && | |
9961 | name[5] == 's' && | |
9962 | name[6] == 't' && | |
9963 | name[7] == 'e' && | |
9964 | name[8] == 'n' && | |
9965 | name[9] == 't') | |
9966 | { /* endhostent */ | |
9967 | return -KEY_endhostent; | |
9968 | } | |
9969 | ||
9970 | goto unknown; | |
9971 | ||
9972 | case 's': | |
9973 | if (name[4] == 'e' && | |
9974 | name[5] == 'r' && | |
9975 | name[6] == 'v' && | |
9976 | name[7] == 'e' && | |
9977 | name[8] == 'n' && | |
9978 | name[9] == 't') | |
9979 | { /* endservent */ | |
9980 | return -KEY_endservent; | |
9981 | } | |
9982 | ||
9983 | goto unknown; | |
9984 | ||
9985 | default: | |
9986 | goto unknown; | |
9987 | } | |
9988 | } | |
9989 | ||
9990 | goto unknown; | |
9991 | ||
9992 | case 'g': | |
9993 | if (name[1] == 'e' && | |
9994 | name[2] == 't') | |
9995 | { | |
9996 | switch (name[3]) | |
9997 | { | |
9998 | case 'h': | |
9999 | if (name[4] == 'o' && | |
10000 | name[5] == 's' && | |
10001 | name[6] == 't' && | |
10002 | name[7] == 'e' && | |
10003 | name[8] == 'n' && | |
10004 | name[9] == 't') | |
10005 | { /* gethostent */ | |
10006 | return -KEY_gethostent; | |
10007 | } | |
10008 | ||
10009 | goto unknown; | |
10010 | ||
10011 | case 's': | |
10012 | switch (name[4]) | |
10013 | { | |
10014 | case 'e': | |
10015 | if (name[5] == 'r' && | |
10016 | name[6] == 'v' && | |
10017 | name[7] == 'e' && | |
10018 | name[8] == 'n' && | |
10019 | name[9] == 't') | |
10020 | { /* getservent */ | |
10021 | return -KEY_getservent; | |
10022 | } | |
10023 | ||
10024 | goto unknown; | |
10025 | ||
10026 | case 'o': | |
10027 | if (name[5] == 'c' && | |
10028 | name[6] == 'k' && | |
10029 | name[7] == 'o' && | |
10030 | name[8] == 'p' && | |
10031 | name[9] == 't') | |
10032 | { /* getsockopt */ | |
10033 | return -KEY_getsockopt; | |
10034 | } | |
10035 | ||
10036 | goto unknown; | |
10037 | ||
10038 | default: | |
10039 | goto unknown; | |
10040 | } | |
10041 | ||
10042 | default: | |
10043 | goto unknown; | |
10044 | } | |
10045 | } | |
10046 | ||
10047 | goto unknown; | |
10048 | ||
10049 | case 's': | |
10050 | switch (name[1]) | |
10051 | { | |
10052 | case 'e': | |
10053 | if (name[2] == 't') | |
10054 | { | |
10055 | switch (name[3]) | |
10056 | { | |
10057 | case 'h': | |
10058 | if (name[4] == 'o' && | |
10059 | name[5] == 's' && | |
10060 | name[6] == 't' && | |
10061 | name[7] == 'e' && | |
10062 | name[8] == 'n' && | |
10063 | name[9] == 't') | |
10064 | { /* sethostent */ | |
10065 | return -KEY_sethostent; | |
10066 | } | |
10067 | ||
10068 | goto unknown; | |
10069 | ||
10070 | case 's': | |
10071 | switch (name[4]) | |
10072 | { | |
10073 | case 'e': | |
10074 | if (name[5] == 'r' && | |
10075 | name[6] == 'v' && | |
10076 | name[7] == 'e' && | |
10077 | name[8] == 'n' && | |
10078 | name[9] == 't') | |
10079 | { /* setservent */ | |
10080 | return -KEY_setservent; | |
10081 | } | |
10082 | ||
10083 | goto unknown; | |
10084 | ||
10085 | case 'o': | |
10086 | if (name[5] == 'c' && | |
10087 | name[6] == 'k' && | |
10088 | name[7] == 'o' && | |
10089 | name[8] == 'p' && | |
10090 | name[9] == 't') | |
10091 | { /* setsockopt */ | |
10092 | return -KEY_setsockopt; | |
10093 | } | |
10094 | ||
10095 | goto unknown; | |
10096 | ||
10097 | default: | |
10098 | goto unknown; | |
10099 | } | |
10100 | ||
10101 | default: | |
10102 | goto unknown; | |
10103 | } | |
10104 | } | |
10105 | ||
10106 | goto unknown; | |
10107 | ||
10108 | case 'o': | |
10109 | if (name[2] == 'c' && | |
10110 | name[3] == 'k' && | |
10111 | name[4] == 'e' && | |
10112 | name[5] == 't' && | |
10113 | name[6] == 'p' && | |
10114 | name[7] == 'a' && | |
10115 | name[8] == 'i' && | |
10116 | name[9] == 'r') | |
10117 | { /* socketpair */ | |
10118 | return -KEY_socketpair; | |
10119 | } | |
10120 | ||
10121 | goto unknown; | |
10122 | ||
10123 | default: | |
10124 | goto unknown; | |
10125 | } | |
10126 | ||
10127 | default: | |
10128 | goto unknown; | |
e2e1dd5a | 10129 | } |
4c3bbe0f MHM |
10130 | |
10131 | case 11: /* 8 tokens of length 11 */ | |
10132 | switch (name[0]) | |
10133 | { | |
10134 | case '_': | |
10135 | if (name[1] == '_' && | |
10136 | name[2] == 'P' && | |
10137 | name[3] == 'A' && | |
10138 | name[4] == 'C' && | |
10139 | name[5] == 'K' && | |
10140 | name[6] == 'A' && | |
10141 | name[7] == 'G' && | |
10142 | name[8] == 'E' && | |
10143 | name[9] == '_' && | |
10144 | name[10] == '_') | |
10145 | { /* __PACKAGE__ */ | |
10146 | return -KEY___PACKAGE__; | |
10147 | } | |
10148 | ||
10149 | goto unknown; | |
10150 | ||
10151 | case 'e': | |
10152 | if (name[1] == 'n' && | |
10153 | name[2] == 'd' && | |
10154 | name[3] == 'p' && | |
10155 | name[4] == 'r' && | |
10156 | name[5] == 'o' && | |
10157 | name[6] == 't' && | |
10158 | name[7] == 'o' && | |
10159 | name[8] == 'e' && | |
10160 | name[9] == 'n' && | |
10161 | name[10] == 't') | |
10162 | { /* endprotoent */ | |
10163 | return -KEY_endprotoent; | |
10164 | } | |
10165 | ||
10166 | goto unknown; | |
10167 | ||
10168 | case 'g': | |
10169 | if (name[1] == 'e' && | |
10170 | name[2] == 't') | |
10171 | { | |
10172 | switch (name[3]) | |
10173 | { | |
10174 | case 'p': | |
10175 | switch (name[4]) | |
10176 | { | |
10177 | case 'e': | |
10178 | if (name[5] == 'e' && | |
10179 | name[6] == 'r' && | |
10180 | name[7] == 'n' && | |
10181 | name[8] == 'a' && | |
10182 | name[9] == 'm' && | |
10183 | name[10] == 'e') | |
10184 | { /* getpeername */ | |
10185 | return -KEY_getpeername; | |
10186 | } | |
10187 | ||
10188 | goto unknown; | |
10189 | ||
10190 | case 'r': | |
10191 | switch (name[5]) | |
10192 | { | |
10193 | case 'i': | |
10194 | if (name[6] == 'o' && | |
10195 | name[7] == 'r' && | |
10196 | name[8] == 'i' && | |
10197 | name[9] == 't' && | |
10198 | name[10] == 'y') | |
10199 | { /* getpriority */ | |
10200 | return -KEY_getpriority; | |
10201 | } | |
10202 | ||
10203 | goto unknown; | |
10204 | ||
10205 | case 'o': | |
10206 | if (name[6] == 't' && | |
10207 | name[7] == 'o' && | |
10208 | name[8] == 'e' && | |
10209 | name[9] == 'n' && | |
10210 | name[10] == 't') | |
10211 | { /* getprotoent */ | |
10212 | return -KEY_getprotoent; | |
10213 | } | |
10214 | ||
10215 | goto unknown; | |
10216 | ||
10217 | default: | |
10218 | goto unknown; | |
10219 | } | |
10220 | ||
10221 | default: | |
10222 | goto unknown; | |
10223 | } | |
10224 | ||
10225 | case 's': | |
10226 | if (name[4] == 'o' && | |
10227 | name[5] == 'c' && | |
10228 | name[6] == 'k' && | |
10229 | name[7] == 'n' && | |
10230 | name[8] == 'a' && | |
10231 | name[9] == 'm' && | |
10232 | name[10] == 'e') | |
10233 | { /* getsockname */ | |
10234 | return -KEY_getsockname; | |
10235 | } | |
10236 | ||
10237 | goto unknown; | |
10238 | ||
10239 | default: | |
10240 | goto unknown; | |
10241 | } | |
10242 | } | |
10243 | ||
10244 | goto unknown; | |
10245 | ||
10246 | case 's': | |
10247 | if (name[1] == 'e' && | |
10248 | name[2] == 't' && | |
10249 | name[3] == 'p' && | |
10250 | name[4] == 'r') | |
10251 | { | |
10252 | switch (name[5]) | |
10253 | { | |
10254 | case 'i': | |
10255 | if (name[6] == 'o' && | |
10256 | name[7] == 'r' && | |
10257 | name[8] == 'i' && | |
10258 | name[9] == 't' && | |
10259 | name[10] == 'y') | |
10260 | { /* setpriority */ | |
10261 | return -KEY_setpriority; | |
10262 | } | |
10263 | ||
10264 | goto unknown; | |
10265 | ||
10266 | case 'o': | |
10267 | if (name[6] == 't' && | |
10268 | name[7] == 'o' && | |
10269 | name[8] == 'e' && | |
10270 | name[9] == 'n' && | |
10271 | name[10] == 't') | |
10272 | { /* setprotoent */ | |
10273 | return -KEY_setprotoent; | |
10274 | } | |
10275 | ||
10276 | goto unknown; | |
10277 | ||
10278 | default: | |
10279 | goto unknown; | |
10280 | } | |
10281 | } | |
10282 | ||
10283 | goto unknown; | |
10284 | ||
10285 | default: | |
10286 | goto unknown; | |
e2e1dd5a | 10287 | } |
4c3bbe0f MHM |
10288 | |
10289 | case 12: /* 2 tokens of length 12 */ | |
10290 | if (name[0] == 'g' && | |
10291 | name[1] == 'e' && | |
10292 | name[2] == 't' && | |
10293 | name[3] == 'n' && | |
10294 | name[4] == 'e' && | |
10295 | name[5] == 't' && | |
10296 | name[6] == 'b' && | |
10297 | name[7] == 'y') | |
10298 | { | |
10299 | switch (name[8]) | |
10300 | { | |
10301 | case 'a': | |
10302 | if (name[9] == 'd' && | |
10303 | name[10] == 'd' && | |
10304 | name[11] == 'r') | |
10305 | { /* getnetbyaddr */ | |
10306 | return -KEY_getnetbyaddr; | |
10307 | } | |
10308 | ||
10309 | goto unknown; | |
10310 | ||
10311 | case 'n': | |
10312 | if (name[9] == 'a' && | |
10313 | name[10] == 'm' && | |
10314 | name[11] == 'e') | |
10315 | { /* getnetbyname */ | |
10316 | return -KEY_getnetbyname; | |
10317 | } | |
10318 | ||
10319 | goto unknown; | |
10320 | ||
10321 | default: | |
10322 | goto unknown; | |
10323 | } | |
e2e1dd5a | 10324 | } |
4c3bbe0f MHM |
10325 | |
10326 | goto unknown; | |
10327 | ||
10328 | case 13: /* 4 tokens of length 13 */ | |
10329 | if (name[0] == 'g' && | |
10330 | name[1] == 'e' && | |
10331 | name[2] == 't') | |
10332 | { | |
10333 | switch (name[3]) | |
10334 | { | |
10335 | case 'h': | |
10336 | if (name[4] == 'o' && | |
10337 | name[5] == 's' && | |
10338 | name[6] == 't' && | |
10339 | name[7] == 'b' && | |
10340 | name[8] == 'y') | |
10341 | { | |
10342 | switch (name[9]) | |
10343 | { | |
10344 | case 'a': | |
10345 | if (name[10] == 'd' && | |
10346 | name[11] == 'd' && | |
10347 | name[12] == 'r') | |
10348 | { /* gethostbyaddr */ | |
10349 | return -KEY_gethostbyaddr; | |
10350 | } | |
10351 | ||
10352 | goto unknown; | |
10353 | ||
10354 | case 'n': | |
10355 | if (name[10] == 'a' && | |
10356 | name[11] == 'm' && | |
10357 | name[12] == 'e') | |
10358 | { /* gethostbyname */ | |
10359 | return -KEY_gethostbyname; | |
10360 | } | |
10361 | ||
10362 | goto unknown; | |
10363 | ||
10364 | default: | |
10365 | goto unknown; | |
10366 | } | |
10367 | } | |
10368 | ||
10369 | goto unknown; | |
10370 | ||
10371 | case 's': | |
10372 | if (name[4] == 'e' && | |
10373 | name[5] == 'r' && | |
10374 | name[6] == 'v' && | |
10375 | name[7] == 'b' && | |
10376 | name[8] == 'y') | |
10377 | { | |
10378 | switch (name[9]) | |
10379 | { | |
10380 | case 'n': | |
10381 | if (name[10] == 'a' && | |
10382 | name[11] == 'm' && | |
10383 | name[12] == 'e') | |
10384 | { /* getservbyname */ | |
10385 | return -KEY_getservbyname; | |
10386 | } | |
10387 | ||
10388 | goto unknown; | |
10389 | ||
10390 | case 'p': | |
10391 | if (name[10] == 'o' && | |
10392 | name[11] == 'r' && | |
10393 | name[12] == 't') | |
10394 | { /* getservbyport */ | |
10395 | return -KEY_getservbyport; | |
10396 | } | |
10397 | ||
10398 | goto unknown; | |
10399 | ||
10400 | default: | |
10401 | goto unknown; | |
10402 | } | |
10403 | } | |
10404 | ||
10405 | goto unknown; | |
10406 | ||
10407 | default: | |
10408 | goto unknown; | |
10409 | } | |
e2e1dd5a | 10410 | } |
4c3bbe0f MHM |
10411 | |
10412 | goto unknown; | |
10413 | ||
10414 | case 14: /* 1 tokens of length 14 */ | |
10415 | if (name[0] == 'g' && | |
10416 | name[1] == 'e' && | |
10417 | name[2] == 't' && | |
10418 | name[3] == 'p' && | |
10419 | name[4] == 'r' && | |
10420 | name[5] == 'o' && | |
10421 | name[6] == 't' && | |
10422 | name[7] == 'o' && | |
10423 | name[8] == 'b' && | |
10424 | name[9] == 'y' && | |
10425 | name[10] == 'n' && | |
10426 | name[11] == 'a' && | |
10427 | name[12] == 'm' && | |
10428 | name[13] == 'e') | |
10429 | { /* getprotobyname */ | |
10430 | return -KEY_getprotobyname; | |
10431 | } | |
10432 | ||
10433 | goto unknown; | |
10434 | ||
10435 | case 16: /* 1 tokens of length 16 */ | |
10436 | if (name[0] == 'g' && | |
10437 | name[1] == 'e' && | |
10438 | name[2] == 't' && | |
10439 | name[3] == 'p' && | |
10440 | name[4] == 'r' && | |
10441 | name[5] == 'o' && | |
10442 | name[6] == 't' && | |
10443 | name[7] == 'o' && | |
10444 | name[8] == 'b' && | |
10445 | name[9] == 'y' && | |
10446 | name[10] == 'n' && | |
10447 | name[11] == 'u' && | |
10448 | name[12] == 'm' && | |
10449 | name[13] == 'b' && | |
10450 | name[14] == 'e' && | |
10451 | name[15] == 'r') | |
10452 | { /* getprotobynumber */ | |
10453 | return -KEY_getprotobynumber; | |
10454 | } | |
10455 | ||
10456 | goto unknown; | |
10457 | ||
10458 | default: | |
10459 | goto unknown; | |
e2e1dd5a | 10460 | } |
4c3bbe0f MHM |
10461 | |
10462 | unknown: | |
e2e1dd5a | 10463 | return 0; |
a687059c LW |
10464 | } |
10465 | ||
76e3520e | 10466 | STATIC void |
c94115d8 | 10467 | S_checkcomma(pTHX_ const char *s, const char *name, const char *what) |
a687059c | 10468 | { |
97aff369 | 10469 | dVAR; |
2f3197b3 | 10470 | |
d008e5eb | 10471 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
10472 | if (ckWARN(WARN_SYNTAX)) { |
10473 | int level = 1; | |
26ff0806 | 10474 | const char *w; |
d008e5eb GS |
10475 | for (w = s+2; *w && level; w++) { |
10476 | if (*w == '(') | |
10477 | ++level; | |
10478 | else if (*w == ')') | |
10479 | --level; | |
10480 | } | |
888fea98 NC |
10481 | while (isSPACE(*w)) |
10482 | ++w; | |
b1439985 RGS |
10483 | /* the list of chars below is for end of statements or |
10484 | * block / parens, boolean operators (&&, ||, //) and branch | |
10485 | * constructs (or, and, if, until, unless, while, err, for). | |
10486 | * Not a very solid hack... */ | |
10487 | if (!*w || !strchr(";&/|})]oaiuwef!=", *w)) | |
9014280d | 10488 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 10489 | "%s (...) interpreted as function",name); |
d008e5eb | 10490 | } |
2f3197b3 | 10491 | } |
3280af22 | 10492 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 10493 | s++; |
a687059c LW |
10494 | if (*s == '(') |
10495 | s++; | |
3280af22 | 10496 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10497 | s++; |
7e2040f0 | 10498 | if (isIDFIRST_lazy_if(s,UTF)) { |
26ff0806 | 10499 | const char * const w = s++; |
7e2040f0 | 10500 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 10501 | s++; |
3280af22 | 10502 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10503 | s++; |
e929a76b | 10504 | if (*s == ',') { |
c94115d8 | 10505 | GV* gv; |
5458a98a | 10506 | if (keyword(w, s - w, 0)) |
e929a76b | 10507 | return; |
c94115d8 NC |
10508 | |
10509 | gv = gv_fetchpvn_flags(w, s - w, 0, SVt_PVCV); | |
10510 | if (gv && GvCVu(gv)) | |
abbb3198 | 10511 | return; |
cea2e8a9 | 10512 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
10513 | } |
10514 | } | |
10515 | } | |
10516 | ||
423cee85 JH |
10517 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
10518 | Best used as sv=new_constant(..., sv, ...). | |
10519 | If s, pv are NULL, calls subroutine with one argument, | |
10520 | and type is used with error messages only. */ | |
10521 | ||
b3ac6de7 | 10522 | STATIC SV * |
7fc63493 | 10523 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, SV *sv, SV *pv, |
9b0e499b | 10524 | const char *type) |
b3ac6de7 | 10525 | { |
27da23d5 | 10526 | dVAR; dSP; |
890ce7af | 10527 | HV * const table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 10528 | SV *res; |
b3ac6de7 IZ |
10529 | SV **cvp; |
10530 | SV *cv, *typesv; | |
89e33a05 | 10531 | const char *why1 = "", *why2 = "", *why3 = ""; |
4e553d73 | 10532 | |
f0af216f | 10533 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
10534 | SV *msg; |
10535 | ||
10edeb5d JH |
10536 | why2 = (const char *) |
10537 | (strEQ(key,"charnames") | |
10538 | ? "(possibly a missing \"use charnames ...\")" | |
10539 | : ""); | |
4e553d73 | 10540 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
10541 | (type ? type: "undef"), why2); |
10542 | ||
10543 | /* This is convoluted and evil ("goto considered harmful") | |
10544 | * but I do not understand the intricacies of all the different | |
10545 | * failure modes of %^H in here. The goal here is to make | |
10546 | * the most probable error message user-friendly. --jhi */ | |
10547 | ||
10548 | goto msgdone; | |
10549 | ||
423cee85 | 10550 | report: |
4e553d73 | 10551 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 10552 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 10553 | msgdone: |
95a20fc0 | 10554 | yyerror(SvPVX_const(msg)); |
423cee85 JH |
10555 | SvREFCNT_dec(msg); |
10556 | return sv; | |
10557 | } | |
b3ac6de7 IZ |
10558 | cvp = hv_fetch(table, key, strlen(key), FALSE); |
10559 | if (!cvp || !SvOK(*cvp)) { | |
423cee85 JH |
10560 | why1 = "$^H{"; |
10561 | why2 = key; | |
f0af216f | 10562 | why3 = "} is not defined"; |
423cee85 | 10563 | goto report; |
b3ac6de7 IZ |
10564 | } |
10565 | sv_2mortal(sv); /* Parent created it permanently */ | |
10566 | cv = *cvp; | |
423cee85 JH |
10567 | if (!pv && s) |
10568 | pv = sv_2mortal(newSVpvn(s, len)); | |
10569 | if (type && pv) | |
10570 | typesv = sv_2mortal(newSVpv(type, 0)); | |
b3ac6de7 | 10571 | else |
423cee85 | 10572 | typesv = &PL_sv_undef; |
4e553d73 | 10573 | |
e788e7d3 | 10574 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
10575 | ENTER ; |
10576 | SAVETMPS; | |
4e553d73 | 10577 | |
423cee85 | 10578 | PUSHMARK(SP) ; |
a5845cb7 | 10579 | EXTEND(sp, 3); |
423cee85 JH |
10580 | if (pv) |
10581 | PUSHs(pv); | |
b3ac6de7 | 10582 | PUSHs(sv); |
423cee85 JH |
10583 | if (pv) |
10584 | PUSHs(typesv); | |
b3ac6de7 | 10585 | PUTBACK; |
423cee85 | 10586 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 10587 | |
423cee85 | 10588 | SPAGAIN ; |
4e553d73 | 10589 | |
423cee85 | 10590 | /* Check the eval first */ |
9b0e499b | 10591 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
396482e1 | 10592 | sv_catpvs(ERRSV, "Propagated"); |
8b6b16e7 | 10593 | yyerror(SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */ |
e1f15930 | 10594 | (void)POPs; |
b37c2d43 | 10595 | res = SvREFCNT_inc_simple(sv); |
423cee85 JH |
10596 | } |
10597 | else { | |
10598 | res = POPs; | |
b37c2d43 | 10599 | SvREFCNT_inc_simple_void(res); |
423cee85 | 10600 | } |
4e553d73 | 10601 | |
423cee85 JH |
10602 | PUTBACK ; |
10603 | FREETMPS ; | |
10604 | LEAVE ; | |
b3ac6de7 | 10605 | POPSTACK; |
4e553d73 | 10606 | |
b3ac6de7 | 10607 | if (!SvOK(res)) { |
423cee85 JH |
10608 | why1 = "Call to &{$^H{"; |
10609 | why2 = key; | |
f0af216f | 10610 | why3 = "}} did not return a defined value"; |
423cee85 JH |
10611 | sv = res; |
10612 | goto report; | |
9b0e499b | 10613 | } |
423cee85 | 10614 | |
9b0e499b | 10615 | return res; |
b3ac6de7 | 10616 | } |
4e553d73 | 10617 | |
d0a148a6 NC |
10618 | /* Returns a NUL terminated string, with the length of the string written to |
10619 | *slp | |
10620 | */ | |
76e3520e | 10621 | STATIC char * |
cea2e8a9 | 10622 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 | 10623 | { |
97aff369 | 10624 | dVAR; |
463ee0b2 | 10625 | register char *d = dest; |
890ce7af | 10626 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
463ee0b2 | 10627 | for (;;) { |
8903cb82 | 10628 | if (d >= e) |
cea2e8a9 | 10629 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10630 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10631 | *d++ = *s++; |
c35e046a | 10632 | else if (allow_package && (*s == '\'') && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10633 | *d++ = ':'; |
10634 | *d++ = ':'; | |
10635 | s++; | |
10636 | } | |
c35e046a | 10637 | else if (allow_package && (s[0] == ':') && (s[1] == ':') && (s[2] != '$')) { |
463ee0b2 LW |
10638 | *d++ = *s++; |
10639 | *d++ = *s++; | |
10640 | } | |
fd400ab9 | 10641 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10642 | char *t = s + UTF8SKIP(s); |
c35e046a | 10643 | size_t len; |
fd400ab9 | 10644 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 | 10645 | t += UTF8SKIP(t); |
c35e046a AL |
10646 | len = t - s; |
10647 | if (d + len > e) | |
cea2e8a9 | 10648 | Perl_croak(aTHX_ ident_too_long); |
c35e046a AL |
10649 | Copy(s, d, len, char); |
10650 | d += len; | |
a0ed51b3 LW |
10651 | s = t; |
10652 | } | |
463ee0b2 LW |
10653 | else { |
10654 | *d = '\0'; | |
10655 | *slp = d - dest; | |
10656 | return s; | |
e929a76b | 10657 | } |
378cc40b LW |
10658 | } |
10659 | } | |
10660 | ||
76e3520e | 10661 | STATIC char * |
f54cb97a | 10662 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b | 10663 | { |
97aff369 | 10664 | dVAR; |
6136c704 | 10665 | char *bracket = NULL; |
748a9306 | 10666 | char funny = *s++; |
6136c704 AL |
10667 | register char *d = dest; |
10668 | register char * const e = d + destlen + 3; /* two-character token, ending NUL */ | |
378cc40b | 10669 | |
a0d0e21e | 10670 | if (isSPACE(*s)) |
29595ff2 | 10671 | s = PEEKSPACE(s); |
de3bb511 | 10672 | if (isDIGIT(*s)) { |
8903cb82 | 10673 | while (isDIGIT(*s)) { |
10674 | if (d >= e) | |
cea2e8a9 | 10675 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 10676 | *d++ = *s++; |
8903cb82 | 10677 | } |
378cc40b LW |
10678 | } |
10679 | else { | |
463ee0b2 | 10680 | for (;;) { |
8903cb82 | 10681 | if (d >= e) |
cea2e8a9 | 10682 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10683 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10684 | *d++ = *s++; |
7e2040f0 | 10685 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10686 | *d++ = ':'; |
10687 | *d++ = ':'; | |
10688 | s++; | |
10689 | } | |
a0d0e21e | 10690 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
10691 | *d++ = *s++; |
10692 | *d++ = *s++; | |
10693 | } | |
fd400ab9 | 10694 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10695 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 10696 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
10697 | t += UTF8SKIP(t); |
10698 | if (d + (t - s) > e) | |
cea2e8a9 | 10699 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
10700 | Copy(s, d, t - s, char); |
10701 | d += t - s; | |
10702 | s = t; | |
10703 | } | |
463ee0b2 LW |
10704 | else |
10705 | break; | |
10706 | } | |
378cc40b LW |
10707 | } |
10708 | *d = '\0'; | |
10709 | d = dest; | |
79072805 | 10710 | if (*d) { |
3280af22 NIS |
10711 | if (PL_lex_state != LEX_NORMAL) |
10712 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 10713 | return s; |
378cc40b | 10714 | } |
748a9306 | 10715 | if (*s == '$' && s[1] && |
3792a11b | 10716 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 10717 | { |
4810e5ec | 10718 | return s; |
5cd24f17 | 10719 | } |
79072805 LW |
10720 | if (*s == '{') { |
10721 | bracket = s; | |
10722 | s++; | |
10723 | } | |
10724 | else if (ck_uni) | |
10725 | check_uni(); | |
93a17b20 | 10726 | if (s < send) |
79072805 LW |
10727 | *d = *s++; |
10728 | d[1] = '\0'; | |
2b92dfce | 10729 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 10730 | *d = toCTRL(*s); |
10731 | s++; | |
de3bb511 | 10732 | } |
79072805 | 10733 | if (bracket) { |
748a9306 | 10734 | if (isSPACE(s[-1])) { |
fa83b5b6 | 10735 | while (s < send) { |
f54cb97a | 10736 | const char ch = *s++; |
bf4acbe4 | 10737 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 10738 | *d = ch; |
10739 | break; | |
10740 | } | |
10741 | } | |
748a9306 | 10742 | } |
7e2040f0 | 10743 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 10744 | d++; |
a0ed51b3 | 10745 | if (UTF) { |
6136c704 AL |
10746 | char *end = s; |
10747 | while ((end < send && isALNUM_lazy_if(end,UTF)) || *end == ':') { | |
10748 | end += UTF8SKIP(end); | |
10749 | while (end < send && UTF8_IS_CONTINUED(*end) && is_utf8_mark((U8*)end)) | |
10750 | end += UTF8SKIP(end); | |
a0ed51b3 | 10751 | } |
6136c704 AL |
10752 | Copy(s, d, end - s, char); |
10753 | d += end - s; | |
10754 | s = end; | |
a0ed51b3 LW |
10755 | } |
10756 | else { | |
2b92dfce | 10757 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 10758 | *d++ = *s++; |
2b92dfce | 10759 | if (d >= e) |
cea2e8a9 | 10760 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 10761 | } |
79072805 | 10762 | *d = '\0'; |
c35e046a AL |
10763 | while (s < send && SPACE_OR_TAB(*s)) |
10764 | s++; | |
ff68c719 | 10765 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
5458a98a | 10766 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest, 0)) { |
10edeb5d JH |
10767 | const char * const brack = |
10768 | (const char *) | |
10769 | ((*s == '[') ? "[...]" : "{...}"); | |
9014280d | 10770 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 10771 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
10772 | funny, dest, brack, funny, dest, brack); |
10773 | } | |
79072805 | 10774 | bracket++; |
a0be28da | 10775 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
10776 | return s; |
10777 | } | |
4e553d73 NIS |
10778 | } |
10779 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
10780 | * 1999-02-27 mjd-perl-patch@plover.com */ |
10781 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
10782 | && isALNUM(*s)) | |
10783 | { | |
10784 | d++; | |
10785 | while (isALNUM(*s) && d < e) { | |
10786 | *d++ = *s++; | |
10787 | } | |
10788 | if (d >= e) | |
cea2e8a9 | 10789 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 10790 | *d = '\0'; |
79072805 LW |
10791 | } |
10792 | if (*s == '}') { | |
10793 | s++; | |
7df0d042 | 10794 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 10795 | PL_lex_state = LEX_INTERPEND; |
7df0d042 AE |
10796 | PL_expect = XREF; |
10797 | } | |
d008e5eb | 10798 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 10799 | if (ckWARN(WARN_AMBIGUOUS) && |
780a5241 NC |
10800 | (keyword(dest, d - dest, 0) |
10801 | || get_cvn_flags(dest, d - dest, 0))) | |
d008e5eb | 10802 | { |
c35e046a AL |
10803 | if (funny == '#') |
10804 | funny = '@'; | |
9014280d | 10805 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
10806 | "Ambiguous use of %c{%s} resolved to %c%s", |
10807 | funny, dest, funny, dest); | |
10808 | } | |
10809 | } | |
79072805 LW |
10810 | } |
10811 | else { | |
10812 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 10813 | *dest = '\0'; |
79072805 LW |
10814 | } |
10815 | } | |
3280af22 NIS |
10816 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
10817 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
10818 | return s; |
10819 | } | |
10820 | ||
cea2e8a9 | 10821 | void |
2b36a5a0 | 10822 | Perl_pmflag(pTHX_ U32* pmfl, int ch) |
a0d0e21e | 10823 | { |
96a5add6 | 10824 | PERL_UNUSED_CONTEXT; |
cde0cee5 YO |
10825 | if (ch<256) { |
10826 | char c = (char)ch; | |
10827 | switch (c) { | |
10828 | CASE_STD_PMMOD_FLAGS_PARSE_SET(pmfl); | |
a20207d7 YO |
10829 | case GLOBAL_PAT_MOD: *pmfl |= PMf_GLOBAL; break; |
10830 | case CONTINUE_PAT_MOD: *pmfl |= PMf_CONTINUE; break; | |
10831 | case ONCE_PAT_MOD: *pmfl |= PMf_KEEP; break; | |
10832 | case KEEPCOPY_PAT_MOD: *pmfl |= PMf_KEEPCOPY; break; | |
cde0cee5 YO |
10833 | } |
10834 | } | |
a0d0e21e | 10835 | } |
378cc40b | 10836 | |
76e3520e | 10837 | STATIC char * |
cea2e8a9 | 10838 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 10839 | { |
97aff369 | 10840 | dVAR; |
79072805 | 10841 | PMOP *pm; |
5db06880 | 10842 | char *s = scan_str(start,!!PL_madskills,FALSE); |
10edeb5d | 10843 | const char * const valid_flags = |
a20207d7 | 10844 | (const char *)((type == OP_QR) ? QR_PAT_MODS : M_PAT_MODS); |
5db06880 NC |
10845 | #ifdef PERL_MAD |
10846 | char *modstart; | |
10847 | #endif | |
10848 | ||
378cc40b | 10849 | |
25c09cbf | 10850 | if (!s) { |
6136c704 | 10851 | const char * const delimiter = skipspace(start); |
10edeb5d JH |
10852 | Perl_croak(aTHX_ |
10853 | (const char *) | |
10854 | (*delimiter == '?' | |
10855 | ? "Search pattern not terminated or ternary operator parsed as search pattern" | |
10856 | : "Search pattern not terminated" )); | |
25c09cbf | 10857 | } |
bbce6d69 | 10858 | |
8782bef2 | 10859 | pm = (PMOP*)newPMOP(type, 0); |
ad639bfb NC |
10860 | if (PL_multi_open == '?') { |
10861 | /* This is the only point in the code that sets PMf_ONCE: */ | |
79072805 | 10862 | pm->op_pmflags |= PMf_ONCE; |
ad639bfb NC |
10863 | |
10864 | /* Hence it's safe to do this bit of PMOP book-keeping here, which | |
10865 | allows us to restrict the list needed by reset to just the ?? | |
10866 | matches. */ | |
10867 | assert(type != OP_TRANS); | |
10868 | if (PL_curstash) { | |
10869 | MAGIC *mg = mg_find((SV*)PL_curstash, PERL_MAGIC_symtab); | |
10870 | U32 elements; | |
10871 | if (!mg) { | |
10872 | mg = sv_magicext((SV*)PL_curstash, 0, PERL_MAGIC_symtab, 0, 0, | |
10873 | 0); | |
10874 | } | |
10875 | elements = mg->mg_len / sizeof(PMOP**); | |
10876 | Renewc(mg->mg_ptr, elements + 1, PMOP*, char); | |
10877 | ((PMOP**)mg->mg_ptr) [elements++] = pm; | |
10878 | mg->mg_len = elements * sizeof(PMOP**); | |
10879 | PmopSTASH_set(pm,PL_curstash); | |
10880 | } | |
10881 | } | |
5db06880 NC |
10882 | #ifdef PERL_MAD |
10883 | modstart = s; | |
10884 | #endif | |
6136c704 AL |
10885 | while (*s && strchr(valid_flags, *s)) |
10886 | pmflag(&pm->op_pmflags,*s++); | |
5db06880 NC |
10887 | #ifdef PERL_MAD |
10888 | if (PL_madskills && modstart != s) { | |
10889 | SV* tmptoken = newSVpvn(modstart, s - modstart); | |
10890 | append_madprops(newMADPROP('m', MAD_SV, tmptoken, 0), (OP*)pm, 0); | |
10891 | } | |
10892 | #endif | |
4ac733c9 | 10893 | /* issue a warning if /c is specified,but /g is not */ |
041457d9 DM |
10894 | if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL) |
10895 | && ckWARN(WARN_REGEXP)) | |
4ac733c9 | 10896 | { |
a20207d7 YO |
10897 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), |
10898 | "Use of /c modifier is meaningless without /g" ); | |
4ac733c9 MJD |
10899 | } |
10900 | ||
3280af22 | 10901 | PL_lex_op = (OP*)pm; |
79072805 | 10902 | yylval.ival = OP_MATCH; |
378cc40b LW |
10903 | return s; |
10904 | } | |
10905 | ||
76e3520e | 10906 | STATIC char * |
cea2e8a9 | 10907 | S_scan_subst(pTHX_ char *start) |
79072805 | 10908 | { |
27da23d5 | 10909 | dVAR; |
a0d0e21e | 10910 | register char *s; |
79072805 | 10911 | register PMOP *pm; |
4fdae800 | 10912 | I32 first_start; |
79072805 | 10913 | I32 es = 0; |
5db06880 NC |
10914 | #ifdef PERL_MAD |
10915 | char *modstart; | |
10916 | #endif | |
79072805 | 10917 | |
79072805 LW |
10918 | yylval.ival = OP_NULL; |
10919 | ||
5db06880 | 10920 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 10921 | |
37fd879b | 10922 | if (!s) |
cea2e8a9 | 10923 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 10924 | |
3280af22 | 10925 | if (s[-1] == PL_multi_open) |
79072805 | 10926 | s--; |
5db06880 NC |
10927 | #ifdef PERL_MAD |
10928 | if (PL_madskills) { | |
cd81e915 NC |
10929 | CURMAD('q', PL_thisopen); |
10930 | CURMAD('_', PL_thiswhite); | |
10931 | CURMAD('E', PL_thisstuff); | |
10932 | CURMAD('Q', PL_thisclose); | |
10933 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
10934 | } |
10935 | #endif | |
79072805 | 10936 | |
3280af22 | 10937 | first_start = PL_multi_start; |
5db06880 | 10938 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 10939 | if (!s) { |
37fd879b | 10940 | if (PL_lex_stuff) { |
3280af22 | 10941 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 10942 | PL_lex_stuff = NULL; |
37fd879b | 10943 | } |
cea2e8a9 | 10944 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 10945 | } |
3280af22 | 10946 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 10947 | |
79072805 | 10948 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
5db06880 NC |
10949 | |
10950 | #ifdef PERL_MAD | |
10951 | if (PL_madskills) { | |
cd81e915 NC |
10952 | CURMAD('z', PL_thisopen); |
10953 | CURMAD('R', PL_thisstuff); | |
10954 | CURMAD('Z', PL_thisclose); | |
5db06880 NC |
10955 | } |
10956 | modstart = s; | |
10957 | #endif | |
10958 | ||
48c036b1 | 10959 | while (*s) { |
a20207d7 | 10960 | if (*s == EXEC_PAT_MOD) { |
a687059c | 10961 | s++; |
2f3197b3 | 10962 | es++; |
a687059c | 10963 | } |
a20207d7 | 10964 | else if (strchr(S_PAT_MODS, *s)) |
a0d0e21e | 10965 | pmflag(&pm->op_pmflags,*s++); |
48c036b1 GS |
10966 | else |
10967 | break; | |
378cc40b | 10968 | } |
79072805 | 10969 | |
5db06880 NC |
10970 | #ifdef PERL_MAD |
10971 | if (PL_madskills) { | |
10972 | if (modstart != s) | |
10973 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
10974 | append_madprops(PL_thismad, (OP*)pm, 0); |
10975 | PL_thismad = 0; | |
5db06880 NC |
10976 | } |
10977 | #endif | |
0bd48802 AL |
10978 | if ((pm->op_pmflags & PMf_CONTINUE) && ckWARN(WARN_REGEXP)) { |
10979 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" ); | |
4ac733c9 MJD |
10980 | } |
10981 | ||
79072805 | 10982 | if (es) { |
6136c704 AL |
10983 | SV * const repl = newSVpvs(""); |
10984 | ||
0244c3a4 GS |
10985 | PL_sublex_info.super_bufptr = s; |
10986 | PL_sublex_info.super_bufend = PL_bufend; | |
10987 | PL_multi_end = 0; | |
79072805 | 10988 | pm->op_pmflags |= PMf_EVAL; |
463ee0b2 | 10989 | while (es-- > 0) |
10edeb5d | 10990 | sv_catpv(repl, (const char *)(es ? "eval " : "do ")); |
6f43d98f | 10991 | sv_catpvs(repl, "{"); |
3280af22 | 10992 | sv_catsv(repl, PL_lex_repl); |
9badc361 RGS |
10993 | if (strchr(SvPVX(PL_lex_repl), '#')) |
10994 | sv_catpvs(repl, "\n"); | |
10995 | sv_catpvs(repl, "}"); | |
25da4f38 | 10996 | SvEVALED_on(repl); |
3280af22 NIS |
10997 | SvREFCNT_dec(PL_lex_repl); |
10998 | PL_lex_repl = repl; | |
378cc40b | 10999 | } |
79072805 | 11000 | |
3280af22 | 11001 | PL_lex_op = (OP*)pm; |
79072805 | 11002 | yylval.ival = OP_SUBST; |
378cc40b LW |
11003 | return s; |
11004 | } | |
11005 | ||
76e3520e | 11006 | STATIC char * |
cea2e8a9 | 11007 | S_scan_trans(pTHX_ char *start) |
378cc40b | 11008 | { |
97aff369 | 11009 | dVAR; |
a0d0e21e | 11010 | register char* s; |
11343788 | 11011 | OP *o; |
79072805 LW |
11012 | short *tbl; |
11013 | I32 squash; | |
a0ed51b3 | 11014 | I32 del; |
79072805 | 11015 | I32 complement; |
5db06880 NC |
11016 | #ifdef PERL_MAD |
11017 | char *modstart; | |
11018 | #endif | |
79072805 LW |
11019 | |
11020 | yylval.ival = OP_NULL; | |
11021 | ||
5db06880 | 11022 | s = scan_str(start,!!PL_madskills,FALSE); |
37fd879b | 11023 | if (!s) |
cea2e8a9 | 11024 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
5db06880 | 11025 | |
3280af22 | 11026 | if (s[-1] == PL_multi_open) |
2f3197b3 | 11027 | s--; |
5db06880 NC |
11028 | #ifdef PERL_MAD |
11029 | if (PL_madskills) { | |
cd81e915 NC |
11030 | CURMAD('q', PL_thisopen); |
11031 | CURMAD('_', PL_thiswhite); | |
11032 | CURMAD('E', PL_thisstuff); | |
11033 | CURMAD('Q', PL_thisclose); | |
11034 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
11035 | } |
11036 | #endif | |
2f3197b3 | 11037 | |
5db06880 | 11038 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 11039 | if (!s) { |
37fd879b | 11040 | if (PL_lex_stuff) { |
3280af22 | 11041 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 11042 | PL_lex_stuff = NULL; |
37fd879b | 11043 | } |
cea2e8a9 | 11044 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 11045 | } |
5db06880 | 11046 | if (PL_madskills) { |
cd81e915 NC |
11047 | CURMAD('z', PL_thisopen); |
11048 | CURMAD('R', PL_thisstuff); | |
11049 | CURMAD('Z', PL_thisclose); | |
5db06880 | 11050 | } |
79072805 | 11051 | |
a0ed51b3 | 11052 | complement = del = squash = 0; |
5db06880 NC |
11053 | #ifdef PERL_MAD |
11054 | modstart = s; | |
11055 | #endif | |
7a1e2023 NC |
11056 | while (1) { |
11057 | switch (*s) { | |
11058 | case 'c': | |
79072805 | 11059 | complement = OPpTRANS_COMPLEMENT; |
7a1e2023 NC |
11060 | break; |
11061 | case 'd': | |
a0ed51b3 | 11062 | del = OPpTRANS_DELETE; |
7a1e2023 NC |
11063 | break; |
11064 | case 's': | |
79072805 | 11065 | squash = OPpTRANS_SQUASH; |
7a1e2023 NC |
11066 | break; |
11067 | default: | |
11068 | goto no_more; | |
11069 | } | |
395c3793 LW |
11070 | s++; |
11071 | } | |
7a1e2023 | 11072 | no_more: |
8973db79 | 11073 | |
aa1f7c5b | 11074 | tbl = (short *)PerlMemShared_calloc(complement&&!del?258:256, sizeof(short)); |
8973db79 | 11075 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
59f00321 RGS |
11076 | o->op_private &= ~OPpTRANS_ALL; |
11077 | o->op_private |= del|squash|complement| | |
7948272d NIS |
11078 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| |
11079 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 11080 | |
3280af22 | 11081 | PL_lex_op = o; |
79072805 | 11082 | yylval.ival = OP_TRANS; |
5db06880 NC |
11083 | |
11084 | #ifdef PERL_MAD | |
11085 | if (PL_madskills) { | |
11086 | if (modstart != s) | |
11087 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
11088 | append_madprops(PL_thismad, o, 0); |
11089 | PL_thismad = 0; | |
5db06880 NC |
11090 | } |
11091 | #endif | |
11092 | ||
79072805 LW |
11093 | return s; |
11094 | } | |
11095 | ||
76e3520e | 11096 | STATIC char * |
cea2e8a9 | 11097 | S_scan_heredoc(pTHX_ register char *s) |
79072805 | 11098 | { |
97aff369 | 11099 | dVAR; |
79072805 LW |
11100 | SV *herewas; |
11101 | I32 op_type = OP_SCALAR; | |
11102 | I32 len; | |
11103 | SV *tmpstr; | |
11104 | char term; | |
73d840c0 | 11105 | const char *found_newline; |
79072805 | 11106 | register char *d; |
fc36a67e | 11107 | register char *e; |
4633a7c4 | 11108 | char *peek; |
f54cb97a | 11109 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
5db06880 NC |
11110 | #ifdef PERL_MAD |
11111 | I32 stuffstart = s - SvPVX(PL_linestr); | |
11112 | char *tstart; | |
11113 | ||
cd81e915 | 11114 | PL_realtokenstart = -1; |
5db06880 | 11115 | #endif |
79072805 LW |
11116 | |
11117 | s += 2; | |
3280af22 NIS |
11118 | d = PL_tokenbuf; |
11119 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 11120 | if (!outer) |
79072805 | 11121 | *d++ = '\n'; |
c35e046a AL |
11122 | peek = s; |
11123 | while (SPACE_OR_TAB(*peek)) | |
11124 | peek++; | |
3792a11b | 11125 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 11126 | s = peek; |
79072805 | 11127 | term = *s++; |
3280af22 | 11128 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 11129 | d += len; |
3280af22 | 11130 | if (s < PL_bufend) |
79072805 | 11131 | s++; |
79072805 LW |
11132 | } |
11133 | else { | |
11134 | if (*s == '\\') | |
11135 | s++, term = '\''; | |
11136 | else | |
11137 | term = '"'; | |
7e2040f0 | 11138 | if (!isALNUM_lazy_if(s,UTF)) |
12bcd1a6 | 11139 | deprecate_old("bare << to mean <<\"\""); |
7e2040f0 | 11140 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 11141 | if (d < e) |
11142 | *d++ = *s; | |
11143 | } | |
11144 | } | |
3280af22 | 11145 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 11146 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
11147 | *d++ = '\n'; |
11148 | *d = '\0'; | |
3280af22 | 11149 | len = d - PL_tokenbuf; |
5db06880 NC |
11150 | |
11151 | #ifdef PERL_MAD | |
11152 | if (PL_madskills) { | |
11153 | tstart = PL_tokenbuf + !outer; | |
cd81e915 | 11154 | PL_thisclose = newSVpvn(tstart, len - !outer); |
5db06880 | 11155 | tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 | 11156 | PL_thisopen = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11157 | stuffstart = s - SvPVX(PL_linestr); |
11158 | } | |
11159 | #endif | |
6a27c188 | 11160 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
11161 | d = strchr(s, '\r'); |
11162 | if (d) { | |
b464bac0 | 11163 | char * const olds = s; |
f63a84b2 | 11164 | s = d; |
3280af22 | 11165 | while (s < PL_bufend) { |
f63a84b2 LW |
11166 | if (*s == '\r') { |
11167 | *d++ = '\n'; | |
11168 | if (*++s == '\n') | |
11169 | s++; | |
11170 | } | |
11171 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
11172 | *d++ = *s++; | |
11173 | s++; | |
11174 | } | |
11175 | else | |
11176 | *d++ = *s++; | |
11177 | } | |
11178 | *d = '\0'; | |
3280af22 | 11179 | PL_bufend = d; |
95a20fc0 | 11180 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
11181 | s = olds; |
11182 | } | |
11183 | #endif | |
5db06880 NC |
11184 | #ifdef PERL_MAD |
11185 | found_newline = 0; | |
11186 | #endif | |
10edeb5d | 11187 | if ( outer || !(found_newline = (char*)memchr((void*)s, '\n', PL_bufend - s)) ) { |
73d840c0 AL |
11188 | herewas = newSVpvn(s,PL_bufend-s); |
11189 | } | |
11190 | else { | |
5db06880 NC |
11191 | #ifdef PERL_MAD |
11192 | herewas = newSVpvn(s-1,found_newline-s+1); | |
11193 | #else | |
73d840c0 AL |
11194 | s--; |
11195 | herewas = newSVpvn(s,found_newline-s); | |
5db06880 | 11196 | #endif |
73d840c0 | 11197 | } |
5db06880 NC |
11198 | #ifdef PERL_MAD |
11199 | if (PL_madskills) { | |
11200 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11201 | if (PL_thisstuff) |
11202 | sv_catpvn(PL_thisstuff, tstart, s - tstart); | |
5db06880 | 11203 | else |
cd81e915 | 11204 | PL_thisstuff = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11205 | } |
11206 | #endif | |
79072805 | 11207 | s += SvCUR(herewas); |
748a9306 | 11208 | |
5db06880 NC |
11209 | #ifdef PERL_MAD |
11210 | stuffstart = s - SvPVX(PL_linestr); | |
11211 | ||
11212 | if (found_newline) | |
11213 | s--; | |
11214 | #endif | |
11215 | ||
7d0a29fe NC |
11216 | tmpstr = newSV_type(SVt_PVIV); |
11217 | SvGROW(tmpstr, 80); | |
748a9306 | 11218 | if (term == '\'') { |
79072805 | 11219 | op_type = OP_CONST; |
45977657 | 11220 | SvIV_set(tmpstr, -1); |
748a9306 LW |
11221 | } |
11222 | else if (term == '`') { | |
79072805 | 11223 | op_type = OP_BACKTICK; |
45977657 | 11224 | SvIV_set(tmpstr, '\\'); |
748a9306 | 11225 | } |
79072805 LW |
11226 | |
11227 | CLINE; | |
57843af0 | 11228 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
11229 | PL_multi_open = PL_multi_close = '<'; |
11230 | term = *PL_tokenbuf; | |
0244c3a4 | 11231 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
6136c704 AL |
11232 | char * const bufptr = PL_sublex_info.super_bufptr; |
11233 | char * const bufend = PL_sublex_info.super_bufend; | |
b464bac0 | 11234 | char * const olds = s - SvCUR(herewas); |
0244c3a4 GS |
11235 | s = strchr(bufptr, '\n'); |
11236 | if (!s) | |
11237 | s = bufend; | |
11238 | d = s; | |
11239 | while (s < bufend && | |
11240 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
11241 | if (*s++ == '\n') | |
57843af0 | 11242 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
11243 | } |
11244 | if (s >= bufend) { | |
eb160463 | 11245 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
11246 | missingterm(PL_tokenbuf); |
11247 | } | |
11248 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
11249 | sv_setpvn(tmpstr,d+1,s-d); | |
11250 | s += len - 1; | |
11251 | sv_catpvn(herewas,s,bufend-s); | |
95a20fc0 | 11252 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
11253 | |
11254 | s = olds; | |
11255 | goto retval; | |
11256 | } | |
11257 | else if (!outer) { | |
79072805 | 11258 | d = s; |
3280af22 NIS |
11259 | while (s < PL_bufend && |
11260 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 11261 | if (*s++ == '\n') |
57843af0 | 11262 | CopLINE_inc(PL_curcop); |
79072805 | 11263 | } |
3280af22 | 11264 | if (s >= PL_bufend) { |
eb160463 | 11265 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11266 | missingterm(PL_tokenbuf); |
79072805 LW |
11267 | } |
11268 | sv_setpvn(tmpstr,d+1,s-d); | |
5db06880 NC |
11269 | #ifdef PERL_MAD |
11270 | if (PL_madskills) { | |
cd81e915 NC |
11271 | if (PL_thisstuff) |
11272 | sv_catpvn(PL_thisstuff, d + 1, s - d); | |
5db06880 | 11273 | else |
cd81e915 | 11274 | PL_thisstuff = newSVpvn(d + 1, s - d); |
5db06880 NC |
11275 | stuffstart = s - SvPVX(PL_linestr); |
11276 | } | |
11277 | #endif | |
79072805 | 11278 | s += len - 1; |
57843af0 | 11279 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 11280 | |
3280af22 NIS |
11281 | sv_catpvn(herewas,s,PL_bufend-s); |
11282 | sv_setsv(PL_linestr,herewas); | |
11283 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
11284 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11285 | PL_last_lop = PL_last_uni = NULL; |
79072805 LW |
11286 | } |
11287 | else | |
11288 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
3280af22 | 11289 | while (s >= PL_bufend) { /* multiple line string? */ |
5db06880 NC |
11290 | #ifdef PERL_MAD |
11291 | if (PL_madskills) { | |
11292 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11293 | if (PL_thisstuff) |
11294 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11295 | else |
cd81e915 | 11296 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11297 | } |
11298 | #endif | |
fd2d0953 | 11299 | if (!outer || |
3280af22 | 11300 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { |
eb160463 | 11301 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11302 | missingterm(PL_tokenbuf); |
79072805 | 11303 | } |
5db06880 NC |
11304 | #ifdef PERL_MAD |
11305 | stuffstart = s - SvPVX(PL_linestr); | |
11306 | #endif | |
57843af0 | 11307 | CopLINE_inc(PL_curcop); |
3280af22 | 11308 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 11309 | PL_last_lop = PL_last_uni = NULL; |
6a27c188 | 11310 | #ifndef PERL_STRICT_CR |
3280af22 | 11311 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
11312 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
11313 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 11314 | { |
3280af22 NIS |
11315 | PL_bufend[-2] = '\n'; |
11316 | PL_bufend--; | |
95a20fc0 | 11317 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 11318 | } |
3280af22 NIS |
11319 | else if (PL_bufend[-1] == '\r') |
11320 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11321 | } |
3280af22 NIS |
11322 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
11323 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11324 | #endif |
80a702cd | 11325 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 11326 | update_debugger_info(PL_linestr, NULL, 0); |
3280af22 | 11327 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
95a20fc0 | 11328 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
1de9afcd | 11329 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
11330 | sv_catsv(PL_linestr,herewas); |
11331 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
1de9afcd | 11332 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
11333 | } |
11334 | else { | |
3280af22 NIS |
11335 | s = PL_bufend; |
11336 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
11337 | } |
11338 | } | |
79072805 | 11339 | s++; |
0244c3a4 | 11340 | retval: |
57843af0 | 11341 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 11342 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
1da4ca5f | 11343 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 11344 | } |
8990e307 | 11345 | SvREFCNT_dec(herewas); |
2f31ce75 | 11346 | if (!IN_BYTES) { |
95a20fc0 | 11347 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
2f31ce75 JH |
11348 | SvUTF8_on(tmpstr); |
11349 | else if (PL_encoding) | |
11350 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
11351 | } | |
3280af22 | 11352 | PL_lex_stuff = tmpstr; |
79072805 LW |
11353 | yylval.ival = op_type; |
11354 | return s; | |
11355 | } | |
11356 | ||
02aa26ce NT |
11357 | /* scan_inputsymbol |
11358 | takes: current position in input buffer | |
11359 | returns: new position in input buffer | |
11360 | side-effects: yylval and lex_op are set. | |
11361 | ||
11362 | This code handles: | |
11363 | ||
11364 | <> read from ARGV | |
11365 | <FH> read from filehandle | |
11366 | <pkg::FH> read from package qualified filehandle | |
11367 | <pkg'FH> read from package qualified filehandle | |
11368 | <$fh> read from filehandle in $fh | |
11369 | <*.h> filename glob | |
11370 | ||
11371 | */ | |
11372 | ||
76e3520e | 11373 | STATIC char * |
cea2e8a9 | 11374 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 11375 | { |
97aff369 | 11376 | dVAR; |
02aa26ce | 11377 | register char *s = start; /* current position in buffer */ |
1b420867 | 11378 | char *end; |
79072805 LW |
11379 | I32 len; |
11380 | ||
6136c704 AL |
11381 | char *d = PL_tokenbuf; /* start of temp holding space */ |
11382 | const char * const e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
11383 | ||
1b420867 GS |
11384 | end = strchr(s, '\n'); |
11385 | if (!end) | |
11386 | end = PL_bufend; | |
11387 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
11388 | |
11389 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 11390 | or if it didn't end, or if we see a newline |
02aa26ce NT |
11391 | */ |
11392 | ||
bb7a0f54 | 11393 | if (len >= (I32)sizeof PL_tokenbuf) |
cea2e8a9 | 11394 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 11395 | if (s >= end) |
cea2e8a9 | 11396 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 11397 | |
fc36a67e | 11398 | s++; |
02aa26ce NT |
11399 | |
11400 | /* check for <$fh> | |
11401 | Remember, only scalar variables are interpreted as filehandles by | |
11402 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
11403 | treated as a glob() call. | |
11404 | This code makes use of the fact that except for the $ at the front, | |
11405 | a scalar variable and a filehandle look the same. | |
11406 | */ | |
4633a7c4 | 11407 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
11408 | |
11409 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 11410 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 11411 | d++; |
02aa26ce NT |
11412 | |
11413 | /* If we've tried to read what we allow filehandles to look like, and | |
11414 | there's still text left, then it must be a glob() and not a getline. | |
11415 | Use scan_str to pull out the stuff between the <> and treat it | |
11416 | as nothing more than a string. | |
11417 | */ | |
11418 | ||
3280af22 | 11419 | if (d - PL_tokenbuf != len) { |
79072805 LW |
11420 | yylval.ival = OP_GLOB; |
11421 | set_csh(); | |
5db06880 | 11422 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 11423 | if (!s) |
cea2e8a9 | 11424 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
11425 | return s; |
11426 | } | |
395c3793 | 11427 | else { |
9b3023bc | 11428 | bool readline_overriden = FALSE; |
6136c704 | 11429 | GV *gv_readline; |
9b3023bc | 11430 | GV **gvp; |
02aa26ce | 11431 | /* we're in a filehandle read situation */ |
3280af22 | 11432 | d = PL_tokenbuf; |
02aa26ce NT |
11433 | |
11434 | /* turn <> into <ARGV> */ | |
79072805 | 11435 | if (!len) |
689badd5 | 11436 | Copy("ARGV",d,5,char); |
02aa26ce | 11437 | |
9b3023bc | 11438 | /* Check whether readline() is overriden */ |
fafc274c | 11439 | gv_readline = gv_fetchpvs("readline", GV_NOTQUAL, SVt_PVCV); |
6136c704 | 11440 | if ((gv_readline |
ba979b31 | 11441 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) |
9b3023bc | 11442 | || |
017a3ce5 | 11443 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE)) |
9e0d86f8 | 11444 | && (gv_readline = *gvp) && isGV_with_GP(gv_readline) |
ba979b31 | 11445 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
11446 | readline_overriden = TRUE; |
11447 | ||
02aa26ce NT |
11448 | /* if <$fh>, create the ops to turn the variable into a |
11449 | filehandle | |
11450 | */ | |
79072805 | 11451 | if (*d == '$') { |
02aa26ce NT |
11452 | /* try to find it in the pad for this block, otherwise find |
11453 | add symbol table ops | |
11454 | */ | |
bbd11bfc AL |
11455 | const PADOFFSET tmp = pad_findmy(d); |
11456 | if (tmp != NOT_IN_PAD) { | |
00b1698f | 11457 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
6136c704 AL |
11458 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
11459 | HEK * const stashname = HvNAME_HEK(stash); | |
11460 | SV * const sym = sv_2mortal(newSVhek(stashname)); | |
396482e1 | 11461 | sv_catpvs(sym, "::"); |
f558d5af JH |
11462 | sv_catpv(sym, d+1); |
11463 | d = SvPVX(sym); | |
11464 | goto intro_sym; | |
11465 | } | |
11466 | else { | |
6136c704 | 11467 | OP * const o = newOP(OP_PADSV, 0); |
f558d5af | 11468 | o->op_targ = tmp; |
9b3023bc RGS |
11469 | PL_lex_op = readline_overriden |
11470 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11471 | append_elem(OP_LIST, o, | |
11472 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
11473 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 11474 | } |
a0d0e21e LW |
11475 | } |
11476 | else { | |
f558d5af JH |
11477 | GV *gv; |
11478 | ++d; | |
11479 | intro_sym: | |
11480 | gv = gv_fetchpv(d, | |
11481 | (PL_in_eval | |
11482 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 11483 | : GV_ADDMULTI), |
f558d5af | 11484 | SVt_PV); |
9b3023bc RGS |
11485 | PL_lex_op = readline_overriden |
11486 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11487 | append_elem(OP_LIST, | |
11488 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
11489 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11490 | : (OP*)newUNOP(OP_READLINE, 0, | |
11491 | newUNOP(OP_RV2SV, 0, | |
11492 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 11493 | } |
7c6fadd6 RGS |
11494 | if (!readline_overriden) |
11495 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
f5284f61 | 11496 | /* we created the ops in PL_lex_op, so make yylval.ival a null op */ |
79072805 LW |
11497 | yylval.ival = OP_NULL; |
11498 | } | |
02aa26ce NT |
11499 | |
11500 | /* If it's none of the above, it must be a literal filehandle | |
11501 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 11502 | else { |
6136c704 | 11503 | GV * const gv = gv_fetchpv(d, GV_ADD, SVt_PVIO); |
9b3023bc RGS |
11504 | PL_lex_op = readline_overriden |
11505 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11506 | append_elem(OP_LIST, | |
11507 | newGVOP(OP_GV, 0, gv), | |
11508 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11509 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
79072805 LW |
11510 | yylval.ival = OP_NULL; |
11511 | } | |
11512 | } | |
02aa26ce | 11513 | |
79072805 LW |
11514 | return s; |
11515 | } | |
11516 | ||
02aa26ce NT |
11517 | |
11518 | /* scan_str | |
11519 | takes: start position in buffer | |
09bef843 SB |
11520 | keep_quoted preserve \ on the embedded delimiter(s) |
11521 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
11522 | returns: position to continue reading from buffer |
11523 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
11524 | updates the read buffer. | |
11525 | ||
11526 | This subroutine pulls a string out of the input. It is called for: | |
11527 | q single quotes q(literal text) | |
11528 | ' single quotes 'literal text' | |
11529 | qq double quotes qq(interpolate $here please) | |
11530 | " double quotes "interpolate $here please" | |
11531 | qx backticks qx(/bin/ls -l) | |
11532 | ` backticks `/bin/ls -l` | |
11533 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
11534 | m// regexp match m/this/ | |
11535 | s/// regexp substitute s/this/that/ | |
11536 | tr/// string transliterate tr/this/that/ | |
11537 | y/// string transliterate y/this/that/ | |
11538 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 11539 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
11540 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
11541 | ||
11542 | In most of these cases (all but <>, patterns and transliterate) | |
11543 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
11544 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
11545 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
11546 | calls scan_str(). | |
4e553d73 | 11547 | |
02aa26ce NT |
11548 | It skips whitespace before the string starts, and treats the first |
11549 | character as the delimiter. If the delimiter is one of ([{< then | |
11550 | the corresponding "close" character )]}> is used as the closing | |
11551 | delimiter. It allows quoting of delimiters, and if the string has | |
11552 | balanced delimiters ([{<>}]) it allows nesting. | |
11553 | ||
37fd879b HS |
11554 | On success, the SV with the resulting string is put into lex_stuff or, |
11555 | if that is already non-NULL, into lex_repl. The second case occurs only | |
11556 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
11557 | For convenience, the terminating delimiter character is stuffed into | |
11558 | SvIVX of the SV. | |
02aa26ce NT |
11559 | */ |
11560 | ||
76e3520e | 11561 | STATIC char * |
09bef843 | 11562 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 11563 | { |
97aff369 | 11564 | dVAR; |
02aa26ce | 11565 | SV *sv; /* scalar value: string */ |
d3fcec1f | 11566 | const char *tmps; /* temp string, used for delimiter matching */ |
02aa26ce NT |
11567 | register char *s = start; /* current position in the buffer */ |
11568 | register char term; /* terminating character */ | |
11569 | register char *to; /* current position in the sv's data */ | |
11570 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 11571 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
220e2d4e | 11572 | I32 termcode; /* terminating char. code */ |
89ebb4a3 | 11573 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
220e2d4e | 11574 | STRLEN termlen; /* length of terminating string */ |
0331ef07 | 11575 | int last_off = 0; /* last position for nesting bracket */ |
5db06880 NC |
11576 | #ifdef PERL_MAD |
11577 | int stuffstart; | |
11578 | char *tstart; | |
11579 | #endif | |
02aa26ce NT |
11580 | |
11581 | /* skip space before the delimiter */ | |
29595ff2 NC |
11582 | if (isSPACE(*s)) { |
11583 | s = PEEKSPACE(s); | |
11584 | } | |
02aa26ce | 11585 | |
5db06880 | 11586 | #ifdef PERL_MAD |
cd81e915 NC |
11587 | if (PL_realtokenstart >= 0) { |
11588 | stuffstart = PL_realtokenstart; | |
11589 | PL_realtokenstart = -1; | |
5db06880 NC |
11590 | } |
11591 | else | |
11592 | stuffstart = start - SvPVX(PL_linestr); | |
11593 | #endif | |
02aa26ce | 11594 | /* mark where we are, in case we need to report errors */ |
79072805 | 11595 | CLINE; |
02aa26ce NT |
11596 | |
11597 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 11598 | term = *s; |
220e2d4e IH |
11599 | if (!UTF) { |
11600 | termcode = termstr[0] = term; | |
11601 | termlen = 1; | |
11602 | } | |
11603 | else { | |
f3b9ce0f | 11604 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
220e2d4e IH |
11605 | Copy(s, termstr, termlen, U8); |
11606 | if (!UTF8_IS_INVARIANT(term)) | |
11607 | has_utf8 = TRUE; | |
11608 | } | |
b1c7b182 | 11609 | |
02aa26ce | 11610 | /* mark where we are */ |
57843af0 | 11611 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 11612 | PL_multi_open = term; |
02aa26ce NT |
11613 | |
11614 | /* find corresponding closing delimiter */ | |
93a17b20 | 11615 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
220e2d4e IH |
11616 | termcode = termstr[0] = term = tmps[5]; |
11617 | ||
3280af22 | 11618 | PL_multi_close = term; |
79072805 | 11619 | |
561b68a9 SH |
11620 | /* create a new SV to hold the contents. 79 is the SV's initial length. |
11621 | What a random number. */ | |
7d0a29fe NC |
11622 | sv = newSV_type(SVt_PVIV); |
11623 | SvGROW(sv, 80); | |
45977657 | 11624 | SvIV_set(sv, termcode); |
a0d0e21e | 11625 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
11626 | |
11627 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 11628 | if (keep_delims) |
220e2d4e IH |
11629 | sv_catpvn(sv, s, termlen); |
11630 | s += termlen; | |
5db06880 NC |
11631 | #ifdef PERL_MAD |
11632 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11633 | if (!PL_thisopen && !keep_delims) { |
11634 | PL_thisopen = newSVpvn(tstart, s - tstart); | |
5db06880 NC |
11635 | stuffstart = s - SvPVX(PL_linestr); |
11636 | } | |
11637 | #endif | |
93a17b20 | 11638 | for (;;) { |
220e2d4e IH |
11639 | if (PL_encoding && !UTF) { |
11640 | bool cont = TRUE; | |
11641 | ||
11642 | while (cont) { | |
95a20fc0 | 11643 | int offset = s - SvPVX_const(PL_linestr); |
66a1b24b | 11644 | const bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f3b9ce0f | 11645 | &offset, (char*)termstr, termlen); |
6136c704 AL |
11646 | const char * const ns = SvPVX_const(PL_linestr) + offset; |
11647 | char * const svlast = SvEND(sv) - 1; | |
220e2d4e IH |
11648 | |
11649 | for (; s < ns; s++) { | |
11650 | if (*s == '\n' && !PL_rsfp) | |
11651 | CopLINE_inc(PL_curcop); | |
11652 | } | |
11653 | if (!found) | |
11654 | goto read_more_line; | |
11655 | else { | |
11656 | /* handle quoted delimiters */ | |
52327caf | 11657 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
f54cb97a | 11658 | const char *t; |
95a20fc0 | 11659 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
220e2d4e IH |
11660 | t--; |
11661 | if ((svlast-1 - t) % 2) { | |
11662 | if (!keep_quoted) { | |
11663 | *(svlast-1) = term; | |
11664 | *svlast = '\0'; | |
11665 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11666 | } | |
11667 | continue; | |
11668 | } | |
11669 | } | |
11670 | if (PL_multi_open == PL_multi_close) { | |
11671 | cont = FALSE; | |
11672 | } | |
11673 | else { | |
f54cb97a AL |
11674 | const char *t; |
11675 | char *w; | |
0331ef07 | 11676 | for (t = w = SvPVX(sv)+last_off; t < svlast; w++, t++) { |
220e2d4e IH |
11677 | /* At here, all closes are "was quoted" one, |
11678 | so we don't check PL_multi_close. */ | |
11679 | if (*t == '\\') { | |
11680 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
11681 | t++; | |
11682 | else | |
11683 | *w++ = *t++; | |
11684 | } | |
11685 | else if (*t == PL_multi_open) | |
11686 | brackets++; | |
11687 | ||
11688 | *w = *t; | |
11689 | } | |
11690 | if (w < t) { | |
11691 | *w++ = term; | |
11692 | *w = '\0'; | |
95a20fc0 | 11693 | SvCUR_set(sv, w - SvPVX_const(sv)); |
220e2d4e | 11694 | } |
0331ef07 | 11695 | last_off = w - SvPVX(sv); |
220e2d4e IH |
11696 | if (--brackets <= 0) |
11697 | cont = FALSE; | |
11698 | } | |
11699 | } | |
11700 | } | |
11701 | if (!keep_delims) { | |
11702 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11703 | *SvEND(sv) = '\0'; | |
11704 | } | |
11705 | break; | |
11706 | } | |
11707 | ||
02aa26ce | 11708 | /* extend sv if need be */ |
3280af22 | 11709 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 11710 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 11711 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 11712 | |
02aa26ce | 11713 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
11714 | if (PL_multi_open == PL_multi_close) { |
11715 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 11716 | /* embedded newlines increment the current line number */ |
3280af22 | 11717 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11718 | CopLINE_inc(PL_curcop); |
02aa26ce | 11719 | /* handle quoted delimiters */ |
3280af22 | 11720 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 11721 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 11722 | s++; |
02aa26ce | 11723 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
11724 | else |
11725 | *to++ = *s++; | |
11726 | } | |
02aa26ce NT |
11727 | /* terminate when run out of buffer (the for() condition), or |
11728 | have found the terminator */ | |
220e2d4e IH |
11729 | else if (*s == term) { |
11730 | if (termlen == 1) | |
11731 | break; | |
f3b9ce0f | 11732 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
220e2d4e IH |
11733 | break; |
11734 | } | |
63cd0674 | 11735 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11736 | has_utf8 = TRUE; |
93a17b20 LW |
11737 | *to = *s; |
11738 | } | |
11739 | } | |
02aa26ce NT |
11740 | |
11741 | /* if the terminator isn't the same as the start character (e.g., | |
11742 | matched brackets), we have to allow more in the quoting, and | |
11743 | be prepared for nested brackets. | |
11744 | */ | |
93a17b20 | 11745 | else { |
02aa26ce | 11746 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 11747 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 11748 | /* embedded newlines increment the line count */ |
3280af22 | 11749 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11750 | CopLINE_inc(PL_curcop); |
02aa26ce | 11751 | /* backslashes can escape the open or closing characters */ |
3280af22 | 11752 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
11753 | if (!keep_quoted && |
11754 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
11755 | s++; |
11756 | else | |
11757 | *to++ = *s++; | |
11758 | } | |
02aa26ce | 11759 | /* allow nested opens and closes */ |
3280af22 | 11760 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 11761 | break; |
3280af22 | 11762 | else if (*s == PL_multi_open) |
93a17b20 | 11763 | brackets++; |
63cd0674 | 11764 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11765 | has_utf8 = TRUE; |
93a17b20 LW |
11766 | *to = *s; |
11767 | } | |
11768 | } | |
02aa26ce | 11769 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 11770 | *to = '\0'; |
95a20fc0 | 11771 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 11772 | |
02aa26ce NT |
11773 | /* |
11774 | * this next chunk reads more into the buffer if we're not done yet | |
11775 | */ | |
11776 | ||
b1c7b182 GS |
11777 | if (s < PL_bufend) |
11778 | break; /* handle case where we are done yet :-) */ | |
79072805 | 11779 | |
6a27c188 | 11780 | #ifndef PERL_STRICT_CR |
95a20fc0 | 11781 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
11782 | if ((to[-2] == '\r' && to[-1] == '\n') || |
11783 | (to[-2] == '\n' && to[-1] == '\r')) | |
11784 | { | |
f63a84b2 LW |
11785 | to[-2] = '\n'; |
11786 | to--; | |
95a20fc0 | 11787 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
11788 | } |
11789 | else if (to[-1] == '\r') | |
11790 | to[-1] = '\n'; | |
11791 | } | |
95a20fc0 | 11792 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
11793 | to[-1] = '\n'; |
11794 | #endif | |
11795 | ||
220e2d4e | 11796 | read_more_line: |
02aa26ce NT |
11797 | /* if we're out of file, or a read fails, bail and reset the current |
11798 | line marker so we can report where the unterminated string began | |
11799 | */ | |
5db06880 NC |
11800 | #ifdef PERL_MAD |
11801 | if (PL_madskills) { | |
c35e046a | 11802 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 NC |
11803 | if (PL_thisstuff) |
11804 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11805 | else |
cd81e915 | 11806 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11807 | } |
11808 | #endif | |
3280af22 NIS |
11809 | if (!PL_rsfp || |
11810 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { | |
c07a80fd | 11811 | sv_free(sv); |
eb160463 | 11812 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
bd61b366 | 11813 | return NULL; |
79072805 | 11814 | } |
5db06880 NC |
11815 | #ifdef PERL_MAD |
11816 | stuffstart = 0; | |
11817 | #endif | |
02aa26ce | 11818 | /* we read a line, so increment our line counter */ |
57843af0 | 11819 | CopLINE_inc(PL_curcop); |
a0ed51b3 | 11820 | |
02aa26ce | 11821 | /* update debugger info */ |
80a702cd | 11822 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 11823 | update_debugger_info(PL_linestr, NULL, 0); |
a0ed51b3 | 11824 | |
3280af22 NIS |
11825 | /* having changed the buffer, we must update PL_bufend */ |
11826 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11827 | PL_last_lop = PL_last_uni = NULL; |
378cc40b | 11828 | } |
4e553d73 | 11829 | |
02aa26ce NT |
11830 | /* at this point, we have successfully read the delimited string */ |
11831 | ||
220e2d4e | 11832 | if (!PL_encoding || UTF) { |
5db06880 NC |
11833 | #ifdef PERL_MAD |
11834 | if (PL_madskills) { | |
c35e046a | 11835 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
29522234 | 11836 | const int len = s - tstart; |
cd81e915 | 11837 | if (PL_thisstuff) |
c35e046a | 11838 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11839 | else |
c35e046a | 11840 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11841 | if (!PL_thisclose && !keep_delims) |
11842 | PL_thisclose = newSVpvn(s,termlen); | |
5db06880 NC |
11843 | } |
11844 | #endif | |
11845 | ||
220e2d4e IH |
11846 | if (keep_delims) |
11847 | sv_catpvn(sv, s, termlen); | |
11848 | s += termlen; | |
11849 | } | |
5db06880 NC |
11850 | #ifdef PERL_MAD |
11851 | else { | |
11852 | if (PL_madskills) { | |
c35e046a AL |
11853 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
11854 | const int len = s - tstart - termlen; | |
cd81e915 | 11855 | if (PL_thisstuff) |
c35e046a | 11856 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11857 | else |
c35e046a | 11858 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11859 | if (!PL_thisclose && !keep_delims) |
11860 | PL_thisclose = newSVpvn(s - termlen,termlen); | |
5db06880 NC |
11861 | } |
11862 | } | |
11863 | #endif | |
220e2d4e | 11864 | if (has_utf8 || PL_encoding) |
b1c7b182 | 11865 | SvUTF8_on(sv); |
d0063567 | 11866 | |
57843af0 | 11867 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
11868 | |
11869 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
11870 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
11871 | SvLEN_set(sv, SvCUR(sv) + 1); | |
b7e9a5c2 | 11872 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 11873 | } |
02aa26ce NT |
11874 | |
11875 | /* decide whether this is the first or second quoted string we've read | |
11876 | for this op | |
11877 | */ | |
4e553d73 | 11878 | |
3280af22 NIS |
11879 | if (PL_lex_stuff) |
11880 | PL_lex_repl = sv; | |
79072805 | 11881 | else |
3280af22 | 11882 | PL_lex_stuff = sv; |
378cc40b LW |
11883 | return s; |
11884 | } | |
11885 | ||
02aa26ce NT |
11886 | /* |
11887 | scan_num | |
11888 | takes: pointer to position in buffer | |
11889 | returns: pointer to new position in buffer | |
11890 | side-effects: builds ops for the constant in yylval.op | |
11891 | ||
11892 | Read a number in any of the formats that Perl accepts: | |
11893 | ||
7fd134d9 JH |
11894 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
11895 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
11896 | 0b[01](_?[01])* |
11897 | 0[0-7](_?[0-7])* | |
11898 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 11899 | |
3280af22 | 11900 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
11901 | thing it reads. |
11902 | ||
11903 | If it reads a number without a decimal point or an exponent, it will | |
11904 | try converting the number to an integer and see if it can do so | |
11905 | without loss of precision. | |
11906 | */ | |
4e553d73 | 11907 | |
378cc40b | 11908 | char * |
bfed75c6 | 11909 | Perl_scan_num(pTHX_ const char *start, YYSTYPE* lvalp) |
378cc40b | 11910 | { |
97aff369 | 11911 | dVAR; |
bfed75c6 | 11912 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
11913 | register char *d; /* destination in temp buffer */ |
11914 | register char *e; /* end of temp buffer */ | |
86554af2 | 11915 | NV nv; /* number read, as a double */ |
a0714e2c | 11916 | SV *sv = NULL; /* place to put the converted number */ |
a86a20aa | 11917 | bool floatit; /* boolean: int or float? */ |
cbbf8932 | 11918 | const char *lastub = NULL; /* position of last underbar */ |
bfed75c6 | 11919 | static char const number_too_long[] = "Number too long"; |
378cc40b | 11920 | |
02aa26ce NT |
11921 | /* We use the first character to decide what type of number this is */ |
11922 | ||
378cc40b | 11923 | switch (*s) { |
79072805 | 11924 | default: |
cea2e8a9 | 11925 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 11926 | |
02aa26ce | 11927 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 11928 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
11929 | case '0': |
11930 | { | |
02aa26ce NT |
11931 | /* variables: |
11932 | u holds the "number so far" | |
4f19785b WSI |
11933 | shift the power of 2 of the base |
11934 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
11935 | overflowed was the number more than we can hold? |
11936 | ||
11937 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
11938 | we in octal/hex/binary?" indicator to disallow hex characters |
11939 | when in octal mode. | |
02aa26ce | 11940 | */ |
9e24b6e2 JH |
11941 | NV n = 0.0; |
11942 | UV u = 0; | |
79072805 | 11943 | I32 shift; |
9e24b6e2 | 11944 | bool overflowed = FALSE; |
61f33854 | 11945 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
27da23d5 JH |
11946 | static const NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
11947 | static const char* const bases[5] = | |
11948 | { "", "binary", "", "octal", "hexadecimal" }; | |
11949 | static const char* const Bases[5] = | |
11950 | { "", "Binary", "", "Octal", "Hexadecimal" }; | |
11951 | static const char* const maxima[5] = | |
11952 | { "", | |
11953 | "0b11111111111111111111111111111111", | |
11954 | "", | |
11955 | "037777777777", | |
11956 | "0xffffffff" }; | |
bfed75c6 | 11957 | const char *base, *Base, *max; |
378cc40b | 11958 | |
02aa26ce | 11959 | /* check for hex */ |
378cc40b LW |
11960 | if (s[1] == 'x') { |
11961 | shift = 4; | |
11962 | s += 2; | |
61f33854 | 11963 | just_zero = FALSE; |
4f19785b WSI |
11964 | } else if (s[1] == 'b') { |
11965 | shift = 1; | |
11966 | s += 2; | |
61f33854 | 11967 | just_zero = FALSE; |
378cc40b | 11968 | } |
02aa26ce | 11969 | /* check for a decimal in disguise */ |
b78218b7 | 11970 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 11971 | goto decimal; |
02aa26ce | 11972 | /* so it must be octal */ |
928753ea | 11973 | else { |
378cc40b | 11974 | shift = 3; |
928753ea JH |
11975 | s++; |
11976 | } | |
11977 | ||
11978 | if (*s == '_') { | |
11979 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11980 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11981 | "Misplaced _ in number"); |
11982 | lastub = s++; | |
11983 | } | |
9e24b6e2 JH |
11984 | |
11985 | base = bases[shift]; | |
11986 | Base = Bases[shift]; | |
11987 | max = maxima[shift]; | |
02aa26ce | 11988 | |
4f19785b | 11989 | /* read the rest of the number */ |
378cc40b | 11990 | for (;;) { |
9e24b6e2 | 11991 | /* x is used in the overflow test, |
893fe2c2 | 11992 | b is the digit we're adding on. */ |
9e24b6e2 | 11993 | UV x, b; |
55497cff | 11994 | |
378cc40b | 11995 | switch (*s) { |
02aa26ce NT |
11996 | |
11997 | /* if we don't mention it, we're done */ | |
378cc40b LW |
11998 | default: |
11999 | goto out; | |
02aa26ce | 12000 | |
928753ea | 12001 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 12002 | case '_': |
041457d9 | 12003 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12004 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12005 | "Misplaced _ in number"); |
12006 | lastub = s++; | |
de3bb511 | 12007 | break; |
02aa26ce NT |
12008 | |
12009 | /* 8 and 9 are not octal */ | |
378cc40b | 12010 | case '8': case '9': |
4f19785b | 12011 | if (shift == 3) |
cea2e8a9 | 12012 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 12013 | /* FALL THROUGH */ |
02aa26ce NT |
12014 | |
12015 | /* octal digits */ | |
4f19785b | 12016 | case '2': case '3': case '4': |
378cc40b | 12017 | case '5': case '6': case '7': |
4f19785b | 12018 | if (shift == 1) |
cea2e8a9 | 12019 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
12020 | /* FALL THROUGH */ |
12021 | ||
12022 | case '0': case '1': | |
02aa26ce | 12023 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 12024 | goto digit; |
02aa26ce NT |
12025 | |
12026 | /* hex digits */ | |
378cc40b LW |
12027 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
12028 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 12029 | /* make sure they said 0x */ |
378cc40b LW |
12030 | if (shift != 4) |
12031 | goto out; | |
55497cff | 12032 | b = (*s++ & 7) + 9; |
02aa26ce NT |
12033 | |
12034 | /* Prepare to put the digit we have onto the end | |
12035 | of the number so far. We check for overflows. | |
12036 | */ | |
12037 | ||
55497cff | 12038 | digit: |
61f33854 | 12039 | just_zero = FALSE; |
9e24b6e2 JH |
12040 | if (!overflowed) { |
12041 | x = u << shift; /* make room for the digit */ | |
12042 | ||
12043 | if ((x >> shift) != u | |
12044 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
12045 | overflowed = TRUE; |
12046 | n = (NV) u; | |
767a6a26 | 12047 | if (ckWARN_d(WARN_OVERFLOW)) |
9014280d | 12048 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), |
9e24b6e2 JH |
12049 | "Integer overflow in %s number", |
12050 | base); | |
12051 | } else | |
12052 | u = x | b; /* add the digit to the end */ | |
12053 | } | |
12054 | if (overflowed) { | |
12055 | n *= nvshift[shift]; | |
12056 | /* If an NV has not enough bits in its | |
12057 | * mantissa to represent an UV this summing of | |
12058 | * small low-order numbers is a waste of time | |
12059 | * (because the NV cannot preserve the | |
12060 | * low-order bits anyway): we could just | |
12061 | * remember when did we overflow and in the | |
12062 | * end just multiply n by the right | |
12063 | * amount. */ | |
12064 | n += (NV) b; | |
55497cff | 12065 | } |
378cc40b LW |
12066 | break; |
12067 | } | |
12068 | } | |
02aa26ce NT |
12069 | |
12070 | /* if we get here, we had success: make a scalar value from | |
12071 | the number. | |
12072 | */ | |
378cc40b | 12073 | out: |
928753ea JH |
12074 | |
12075 | /* final misplaced underbar check */ | |
12076 | if (s[-1] == '_') { | |
12077 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12078 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
12079 | } |
12080 | ||
561b68a9 | 12081 | sv = newSV(0); |
9e24b6e2 | 12082 | if (overflowed) { |
041457d9 | 12083 | if (n > 4294967295.0 && ckWARN(WARN_PORTABLE)) |
9014280d | 12084 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
12085 | "%s number > %s non-portable", |
12086 | Base, max); | |
12087 | sv_setnv(sv, n); | |
12088 | } | |
12089 | else { | |
15041a67 | 12090 | #if UVSIZE > 4 |
041457d9 | 12091 | if (u > 0xffffffff && ckWARN(WARN_PORTABLE)) |
9014280d | 12092 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
12093 | "%s number > %s non-portable", |
12094 | Base, max); | |
2cc4c2dc | 12095 | #endif |
9e24b6e2 JH |
12096 | sv_setuv(sv, u); |
12097 | } | |
61f33854 | 12098 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
bfed75c6 | 12099 | sv = new_constant(start, s - start, "integer", |
a0714e2c | 12100 | sv, NULL, NULL); |
61f33854 | 12101 | else if (PL_hints & HINT_NEW_BINARY) |
a0714e2c | 12102 | sv = new_constant(start, s - start, "binary", sv, NULL, NULL); |
378cc40b LW |
12103 | } |
12104 | break; | |
02aa26ce NT |
12105 | |
12106 | /* | |
12107 | handle decimal numbers. | |
12108 | we're also sent here when we read a 0 as the first digit | |
12109 | */ | |
378cc40b LW |
12110 | case '1': case '2': case '3': case '4': case '5': |
12111 | case '6': case '7': case '8': case '9': case '.': | |
12112 | decimal: | |
3280af22 NIS |
12113 | d = PL_tokenbuf; |
12114 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 12115 | floatit = FALSE; |
02aa26ce NT |
12116 | |
12117 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 12118 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 12119 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
12120 | if -w is on |
12121 | */ | |
93a17b20 | 12122 | if (*s == '_') { |
041457d9 | 12123 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12124 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12125 | "Misplaced _ in number"); |
12126 | lastub = s++; | |
93a17b20 | 12127 | } |
fc36a67e | 12128 | else { |
02aa26ce | 12129 | /* check for end of fixed-length buffer */ |
fc36a67e | 12130 | if (d >= e) |
cea2e8a9 | 12131 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 12132 | /* if we're ok, copy the character */ |
378cc40b | 12133 | *d++ = *s++; |
fc36a67e | 12134 | } |
378cc40b | 12135 | } |
02aa26ce NT |
12136 | |
12137 | /* final misplaced underbar check */ | |
928753ea | 12138 | if (lastub && s == lastub + 1) { |
d008e5eb | 12139 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 12140 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 12141 | } |
02aa26ce NT |
12142 | |
12143 | /* read a decimal portion if there is one. avoid | |
12144 | 3..5 being interpreted as the number 3. followed | |
12145 | by .5 | |
12146 | */ | |
2f3197b3 | 12147 | if (*s == '.' && s[1] != '.') { |
79072805 | 12148 | floatit = TRUE; |
378cc40b | 12149 | *d++ = *s++; |
02aa26ce | 12150 | |
928753ea JH |
12151 | if (*s == '_') { |
12152 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12153 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12154 | "Misplaced _ in number"); |
12155 | lastub = s; | |
12156 | } | |
12157 | ||
12158 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 12159 | */ |
fc36a67e | 12160 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 12161 | /* fixed length buffer check */ |
fc36a67e | 12162 | if (d >= e) |
cea2e8a9 | 12163 | Perl_croak(aTHX_ number_too_long); |
928753ea | 12164 | if (*s == '_') { |
041457d9 | 12165 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12166 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12167 | "Misplaced _ in number"); |
12168 | lastub = s; | |
12169 | } | |
12170 | else | |
fc36a67e | 12171 | *d++ = *s; |
378cc40b | 12172 | } |
928753ea JH |
12173 | /* fractional part ending in underbar? */ |
12174 | if (s[-1] == '_') { | |
12175 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12176 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12177 | "Misplaced _ in number"); |
12178 | } | |
dd629d5b GS |
12179 | if (*s == '.' && isDIGIT(s[1])) { |
12180 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 12181 | s = start; |
dd629d5b GS |
12182 | goto vstring; |
12183 | } | |
378cc40b | 12184 | } |
02aa26ce NT |
12185 | |
12186 | /* read exponent part, if present */ | |
3792a11b | 12187 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
12188 | floatit = TRUE; |
12189 | s++; | |
02aa26ce NT |
12190 | |
12191 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 12192 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 12193 | |
7fd134d9 JH |
12194 | /* stray preinitial _ */ |
12195 | if (*s == '_') { | |
12196 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12197 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12198 | "Misplaced _ in number"); |
12199 | lastub = s++; | |
12200 | } | |
12201 | ||
02aa26ce | 12202 | /* allow positive or negative exponent */ |
378cc40b LW |
12203 | if (*s == '+' || *s == '-') |
12204 | *d++ = *s++; | |
02aa26ce | 12205 | |
7fd134d9 JH |
12206 | /* stray initial _ */ |
12207 | if (*s == '_') { | |
12208 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12209 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12210 | "Misplaced _ in number"); |
12211 | lastub = s++; | |
12212 | } | |
12213 | ||
7fd134d9 JH |
12214 | /* read digits of exponent */ |
12215 | while (isDIGIT(*s) || *s == '_') { | |
12216 | if (isDIGIT(*s)) { | |
12217 | if (d >= e) | |
12218 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 12219 | *d++ = *s++; |
7fd134d9 JH |
12220 | } |
12221 | else { | |
041457d9 DM |
12222 | if (((lastub && s == lastub + 1) || |
12223 | (!isDIGIT(s[1]) && s[1] != '_')) | |
12224 | && ckWARN(WARN_SYNTAX)) | |
9014280d | 12225 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 | 12226 | "Misplaced _ in number"); |
b3b48e3e | 12227 | lastub = s++; |
7fd134d9 | 12228 | } |
7fd134d9 | 12229 | } |
378cc40b | 12230 | } |
02aa26ce | 12231 | |
02aa26ce NT |
12232 | |
12233 | /* make an sv from the string */ | |
561b68a9 | 12234 | sv = newSV(0); |
097ee67d | 12235 | |
0b7fceb9 | 12236 | /* |
58bb9ec3 NC |
12237 | We try to do an integer conversion first if no characters |
12238 | indicating "float" have been found. | |
0b7fceb9 MU |
12239 | */ |
12240 | ||
12241 | if (!floatit) { | |
58bb9ec3 | 12242 | UV uv; |
6136c704 | 12243 | const int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); |
58bb9ec3 NC |
12244 | |
12245 | if (flags == IS_NUMBER_IN_UV) { | |
12246 | if (uv <= IV_MAX) | |
86554af2 | 12247 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 12248 | else |
c239479b | 12249 | sv_setuv(sv, uv); |
58bb9ec3 NC |
12250 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
12251 | if (uv <= (UV) IV_MIN) | |
12252 | sv_setiv(sv, -(IV)uv); | |
12253 | else | |
12254 | floatit = TRUE; | |
12255 | } else | |
12256 | floatit = TRUE; | |
12257 | } | |
0b7fceb9 | 12258 | if (floatit) { |
58bb9ec3 NC |
12259 | /* terminate the string */ |
12260 | *d = '\0'; | |
86554af2 JH |
12261 | nv = Atof(PL_tokenbuf); |
12262 | sv_setnv(sv, nv); | |
12263 | } | |
86554af2 | 12264 | |
b8403495 JH |
12265 | if ( floatit ? (PL_hints & HINT_NEW_FLOAT) : |
12266 | (PL_hints & HINT_NEW_INTEGER) ) | |
10edeb5d JH |
12267 | sv = new_constant(PL_tokenbuf, |
12268 | d - PL_tokenbuf, | |
12269 | (const char *) | |
b8403495 | 12270 | (floatit ? "float" : "integer"), |
a0714e2c | 12271 | sv, NULL, NULL); |
378cc40b | 12272 | break; |
0b7fceb9 | 12273 | |
e312add1 | 12274 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 12275 | case 'v': |
dd629d5b | 12276 | vstring: |
561b68a9 | 12277 | sv = newSV(5); /* preallocate storage space */ |
65b06e02 | 12278 | s = scan_vstring(s, PL_bufend, sv); |
a7cb1f99 | 12279 | break; |
79072805 | 12280 | } |
a687059c | 12281 | |
02aa26ce NT |
12282 | /* make the op for the constant and return */ |
12283 | ||
a86a20aa | 12284 | if (sv) |
b73d6f50 | 12285 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 12286 | else |
5f66b61c | 12287 | lvalp->opval = NULL; |
a687059c | 12288 | |
73d840c0 | 12289 | return (char *)s; |
378cc40b LW |
12290 | } |
12291 | ||
76e3520e | 12292 | STATIC char * |
cea2e8a9 | 12293 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 12294 | { |
97aff369 | 12295 | dVAR; |
79072805 | 12296 | register char *eol; |
378cc40b | 12297 | register char *t; |
6136c704 | 12298 | SV * const stuff = newSVpvs(""); |
79072805 | 12299 | bool needargs = FALSE; |
c5ee2135 | 12300 | bool eofmt = FALSE; |
5db06880 NC |
12301 | #ifdef PERL_MAD |
12302 | char *tokenstart = s; | |
12303 | SV* savewhite; | |
12304 | ||
12305 | if (PL_madskills) { | |
cd81e915 NC |
12306 | savewhite = PL_thiswhite; |
12307 | PL_thiswhite = 0; | |
5db06880 NC |
12308 | } |
12309 | #endif | |
378cc40b | 12310 | |
79072805 | 12311 | while (!needargs) { |
a1b95068 | 12312 | if (*s == '.') { |
c35e046a | 12313 | t = s+1; |
51882d45 | 12314 | #ifdef PERL_STRICT_CR |
c35e046a AL |
12315 | while (SPACE_OR_TAB(*t)) |
12316 | t++; | |
51882d45 | 12317 | #else |
c35e046a AL |
12318 | while (SPACE_OR_TAB(*t) || *t == '\r') |
12319 | t++; | |
51882d45 | 12320 | #endif |
c5ee2135 WL |
12321 | if (*t == '\n' || t == PL_bufend) { |
12322 | eofmt = TRUE; | |
79072805 | 12323 | break; |
c5ee2135 | 12324 | } |
79072805 | 12325 | } |
3280af22 | 12326 | if (PL_in_eval && !PL_rsfp) { |
07409e01 | 12327 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 12328 | if (!eol++) |
3280af22 | 12329 | eol = PL_bufend; |
0f85fab0 LW |
12330 | } |
12331 | else | |
3280af22 | 12332 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 12333 | if (*s != '#') { |
a0d0e21e LW |
12334 | for (t = s; t < eol; t++) { |
12335 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
12336 | needargs = FALSE; | |
12337 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 12338 | } |
a0d0e21e LW |
12339 | if (*t == '@' || *t == '^') |
12340 | needargs = TRUE; | |
378cc40b | 12341 | } |
7121b347 MG |
12342 | if (eol > s) { |
12343 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 12344 | #ifndef PERL_STRICT_CR |
7121b347 MG |
12345 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
12346 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
12347 | end[-2] = '\n'; | |
12348 | end[-1] = '\0'; | |
b162af07 | 12349 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 12350 | } |
2dc4c65b | 12351 | #endif |
7121b347 MG |
12352 | } |
12353 | else | |
12354 | break; | |
79072805 | 12355 | } |
95a20fc0 | 12356 | s = (char*)eol; |
3280af22 | 12357 | if (PL_rsfp) { |
5db06880 NC |
12358 | #ifdef PERL_MAD |
12359 | if (PL_madskills) { | |
cd81e915 NC |
12360 | if (PL_thistoken) |
12361 | sv_catpvn(PL_thistoken, tokenstart, PL_bufend - tokenstart); | |
5db06880 | 12362 | else |
cd81e915 | 12363 | PL_thistoken = newSVpvn(tokenstart, PL_bufend - tokenstart); |
5db06880 NC |
12364 | } |
12365 | #endif | |
3280af22 | 12366 | s = filter_gets(PL_linestr, PL_rsfp, 0); |
5db06880 NC |
12367 | #ifdef PERL_MAD |
12368 | tokenstart = PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
12369 | #else | |
3280af22 | 12370 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); |
5db06880 | 12371 | #endif |
3280af22 | 12372 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); |
bd61b366 | 12373 | PL_last_lop = PL_last_uni = NULL; |
79072805 | 12374 | if (!s) { |
3280af22 | 12375 | s = PL_bufptr; |
378cc40b LW |
12376 | break; |
12377 | } | |
378cc40b | 12378 | } |
463ee0b2 | 12379 | incline(s); |
79072805 | 12380 | } |
a0d0e21e LW |
12381 | enough: |
12382 | if (SvCUR(stuff)) { | |
3280af22 | 12383 | PL_expect = XTERM; |
79072805 | 12384 | if (needargs) { |
3280af22 | 12385 | PL_lex_state = LEX_NORMAL; |
cd81e915 | 12386 | start_force(PL_curforce); |
9ded7720 | 12387 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 LW |
12388 | force_next(','); |
12389 | } | |
a0d0e21e | 12390 | else |
3280af22 | 12391 | PL_lex_state = LEX_FORMLINE; |
1bd51a4c | 12392 | if (!IN_BYTES) { |
95a20fc0 | 12393 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
1bd51a4c IH |
12394 | SvUTF8_on(stuff); |
12395 | else if (PL_encoding) | |
12396 | sv_recode_to_utf8(stuff, PL_encoding); | |
12397 | } | |
cd81e915 | 12398 | start_force(PL_curforce); |
9ded7720 | 12399 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 12400 | force_next(THING); |
cd81e915 | 12401 | start_force(PL_curforce); |
9ded7720 | 12402 | NEXTVAL_NEXTTOKE.ival = OP_FORMLINE; |
79072805 | 12403 | force_next(LSTOP); |
378cc40b | 12404 | } |
79072805 | 12405 | else { |
8990e307 | 12406 | SvREFCNT_dec(stuff); |
c5ee2135 WL |
12407 | if (eofmt) |
12408 | PL_lex_formbrack = 0; | |
3280af22 | 12409 | PL_bufptr = s; |
79072805 | 12410 | } |
5db06880 NC |
12411 | #ifdef PERL_MAD |
12412 | if (PL_madskills) { | |
cd81e915 NC |
12413 | if (PL_thistoken) |
12414 | sv_catpvn(PL_thistoken, tokenstart, s - tokenstart); | |
5db06880 | 12415 | else |
cd81e915 NC |
12416 | PL_thistoken = newSVpvn(tokenstart, s - tokenstart); |
12417 | PL_thiswhite = savewhite; | |
5db06880 NC |
12418 | } |
12419 | #endif | |
79072805 | 12420 | return s; |
378cc40b | 12421 | } |
a687059c | 12422 | |
76e3520e | 12423 | STATIC void |
cea2e8a9 | 12424 | S_set_csh(pTHX) |
a687059c | 12425 | { |
ae986130 | 12426 | #ifdef CSH |
97aff369 | 12427 | dVAR; |
3280af22 NIS |
12428 | if (!PL_cshlen) |
12429 | PL_cshlen = strlen(PL_cshname); | |
5f66b61c | 12430 | #else |
b2675967 | 12431 | #if defined(USE_ITHREADS) |
96a5add6 | 12432 | PERL_UNUSED_CONTEXT; |
ae986130 | 12433 | #endif |
b2675967 | 12434 | #endif |
a687059c | 12435 | } |
463ee0b2 | 12436 | |
ba6d6ac9 | 12437 | I32 |
864dbfa3 | 12438 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 12439 | { |
97aff369 | 12440 | dVAR; |
a3b680e6 | 12441 | const I32 oldsavestack_ix = PL_savestack_ix; |
6136c704 | 12442 | CV* const outsidecv = PL_compcv; |
8990e307 | 12443 | |
3280af22 NIS |
12444 | if (PL_compcv) { |
12445 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 12446 | } |
7766f137 | 12447 | SAVEI32(PL_subline); |
3280af22 | 12448 | save_item(PL_subname); |
3280af22 | 12449 | SAVESPTR(PL_compcv); |
3280af22 | 12450 | |
b9f83d2f | 12451 | PL_compcv = (CV*)newSV_type(is_format ? SVt_PVFM : SVt_PVCV); |
3280af22 NIS |
12452 | CvFLAGS(PL_compcv) |= flags; |
12453 | ||
57843af0 | 12454 | PL_subline = CopLINE(PL_curcop); |
dd2155a4 | 12455 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
b37c2d43 | 12456 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc_simple(outsidecv); |
a3985cdc | 12457 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
748a9306 | 12458 | |
8990e307 LW |
12459 | return oldsavestack_ix; |
12460 | } | |
12461 | ||
084592ab CN |
12462 | #ifdef __SC__ |
12463 | #pragma segment Perl_yylex | |
12464 | #endif | |
8990e307 | 12465 | int |
bfed75c6 | 12466 | Perl_yywarn(pTHX_ const char *s) |
8990e307 | 12467 | { |
97aff369 | 12468 | dVAR; |
faef0170 | 12469 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 12470 | yyerror(s); |
faef0170 | 12471 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 12472 | return 0; |
8990e307 LW |
12473 | } |
12474 | ||
12475 | int | |
bfed75c6 | 12476 | Perl_yyerror(pTHX_ const char *s) |
463ee0b2 | 12477 | { |
97aff369 | 12478 | dVAR; |
bfed75c6 AL |
12479 | const char *where = NULL; |
12480 | const char *context = NULL; | |
68dc0745 | 12481 | int contlen = -1; |
46fc3d4c | 12482 | SV *msg; |
5912531f | 12483 | int yychar = PL_parser->yychar; |
463ee0b2 | 12484 | |
3280af22 | 12485 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 12486 | where = "at EOF"; |
8bcfe651 TM |
12487 | else if (PL_oldoldbufptr && PL_bufptr > PL_oldoldbufptr && |
12488 | PL_bufptr - PL_oldoldbufptr < 200 && PL_oldoldbufptr != PL_oldbufptr && | |
12489 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12490 | /* |
12491 | Only for NetWare: | |
12492 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12493 | when the script has error such as not having the closing quotes like: | |
12494 | if ($var eq "value) | |
12495 | Checking of white spaces is anyway done in NetWare code. | |
12496 | */ | |
12497 | #ifndef NETWARE | |
3280af22 NIS |
12498 | while (isSPACE(*PL_oldoldbufptr)) |
12499 | PL_oldoldbufptr++; | |
f355267c | 12500 | #endif |
3280af22 NIS |
12501 | context = PL_oldoldbufptr; |
12502 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 12503 | } |
8bcfe651 TM |
12504 | else if (PL_oldbufptr && PL_bufptr > PL_oldbufptr && |
12505 | PL_bufptr - PL_oldbufptr < 200 && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12506 | /* |
12507 | Only for NetWare: | |
12508 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12509 | when the script has error such as not having the closing quotes like: | |
12510 | if ($var eq "value) | |
12511 | Checking of white spaces is anyway done in NetWare code. | |
12512 | */ | |
12513 | #ifndef NETWARE | |
3280af22 NIS |
12514 | while (isSPACE(*PL_oldbufptr)) |
12515 | PL_oldbufptr++; | |
f355267c | 12516 | #endif |
3280af22 NIS |
12517 | context = PL_oldbufptr; |
12518 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
12519 | } |
12520 | else if (yychar > 255) | |
68dc0745 | 12521 | where = "next token ???"; |
12fbd33b | 12522 | else if (yychar == -2) { /* YYEMPTY */ |
3280af22 NIS |
12523 | if (PL_lex_state == LEX_NORMAL || |
12524 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 12525 | where = "at end of line"; |
3280af22 | 12526 | else if (PL_lex_inpat) |
68dc0745 | 12527 | where = "within pattern"; |
463ee0b2 | 12528 | else |
68dc0745 | 12529 | where = "within string"; |
463ee0b2 | 12530 | } |
46fc3d4c | 12531 | else { |
6136c704 | 12532 | SV * const where_sv = sv_2mortal(newSVpvs("next char ")); |
46fc3d4c | 12533 | if (yychar < 32) |
cea2e8a9 | 12534 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
46fc3d4c | 12535 | else if (isPRINT_LC(yychar)) |
cea2e8a9 | 12536 | Perl_sv_catpvf(aTHX_ where_sv, "%c", yychar); |
463ee0b2 | 12537 | else |
cea2e8a9 | 12538 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
95a20fc0 | 12539 | where = SvPVX_const(where_sv); |
463ee0b2 | 12540 | } |
46fc3d4c | 12541 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 12542 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 12543 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 12544 | if (context) |
cea2e8a9 | 12545 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 12546 | else |
cea2e8a9 | 12547 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 12548 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 12549 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 12550 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 12551 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 12552 | PL_multi_end = 0; |
a0d0e21e | 12553 | } |
56da5a46 | 12554 | if (PL_in_eval & EVAL_WARNONLY && ckWARN_d(WARN_SYNTAX)) |
be2597df | 12555 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, SVfARG(msg)); |
463ee0b2 | 12556 | else |
5a844595 | 12557 | qerror(msg); |
c7d6bfb2 GS |
12558 | if (PL_error_count >= 10) { |
12559 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 12560 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
be2597df | 12561 | SVfARG(ERRSV), OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
12562 | else |
12563 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 12564 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 12565 | } |
3280af22 | 12566 | PL_in_my = 0; |
5c284bb0 | 12567 | PL_in_my_stash = NULL; |
463ee0b2 LW |
12568 | return 0; |
12569 | } | |
084592ab CN |
12570 | #ifdef __SC__ |
12571 | #pragma segment Main | |
12572 | #endif | |
4e35701f | 12573 | |
b250498f | 12574 | STATIC char* |
3ae08724 | 12575 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 12576 | { |
97aff369 | 12577 | dVAR; |
f54cb97a | 12578 | const STRLEN slen = SvCUR(PL_linestr); |
7aa207d6 | 12579 | switch (s[0]) { |
4e553d73 NIS |
12580 | case 0xFF: |
12581 | if (s[1] == 0xFE) { | |
7aa207d6 | 12582 | /* UTF-16 little-endian? (or UTF32-LE?) */ |
3ae08724 | 12583 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
7aa207d6 | 12584 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-LE"); |
01ec43d0 | 12585 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12586 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF16-LE script encoding (BOM)\n"); |
3ae08724 | 12587 | s += 2; |
7aa207d6 | 12588 | utf16le: |
dea0fc0b JH |
12589 | if (PL_bufend > (char*)s) { |
12590 | U8 *news; | |
12591 | I32 newlen; | |
12592 | ||
12593 | filter_add(utf16rev_textfilter, NULL); | |
a02a5408 | 12594 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd | 12595 | utf16_to_utf8_reversed(s, news, |
aed58286 | 12596 | PL_bufend - (char*)s - 1, |
1de9afcd | 12597 | &newlen); |
7aa207d6 | 12598 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
5db06880 NC |
12599 | #ifdef PERL_MAD |
12600 | s = (U8*)SvPVX(PL_linestr); | |
12601 | Copy(news, s, newlen, U8); | |
12602 | s[newlen] = '\0'; | |
12603 | #endif | |
dea0fc0b | 12604 | Safefree(news); |
7aa207d6 JH |
12605 | SvUTF8_on(PL_linestr); |
12606 | s = (U8*)SvPVX(PL_linestr); | |
5db06880 NC |
12607 | #ifdef PERL_MAD |
12608 | /* FIXME - is this a general bug fix? */ | |
12609 | s[newlen] = '\0'; | |
12610 | #endif | |
7aa207d6 | 12611 | PL_bufend = SvPVX(PL_linestr) + newlen; |
dea0fc0b | 12612 | } |
b250498f | 12613 | #else |
7aa207d6 | 12614 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-LE"); |
b250498f | 12615 | #endif |
01ec43d0 GS |
12616 | } |
12617 | break; | |
78ae23f5 | 12618 | case 0xFE: |
7aa207d6 | 12619 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 12620 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12621 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b | 12622 | s += 2; |
7aa207d6 | 12623 | utf16be: |
dea0fc0b JH |
12624 | if (PL_bufend > (char *)s) { |
12625 | U8 *news; | |
12626 | I32 newlen; | |
12627 | ||
12628 | filter_add(utf16_textfilter, NULL); | |
a02a5408 | 12629 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd RGS |
12630 | utf16_to_utf8(s, news, |
12631 | PL_bufend - (char*)s, | |
12632 | &newlen); | |
7aa207d6 | 12633 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
dea0fc0b | 12634 | Safefree(news); |
7aa207d6 JH |
12635 | SvUTF8_on(PL_linestr); |
12636 | s = (U8*)SvPVX(PL_linestr); | |
12637 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
dea0fc0b | 12638 | } |
b250498f | 12639 | #else |
7aa207d6 | 12640 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-BE"); |
b250498f | 12641 | #endif |
01ec43d0 GS |
12642 | } |
12643 | break; | |
3ae08724 GS |
12644 | case 0xEF: |
12645 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
7aa207d6 | 12646 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
12647 | s += 3; /* UTF-8 */ |
12648 | } | |
12649 | break; | |
12650 | case 0: | |
7aa207d6 JH |
12651 | if (slen > 3) { |
12652 | if (s[1] == 0) { | |
12653 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
12654 | /* UTF-32 big-endian */ | |
12655 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-BE"); | |
12656 | } | |
12657 | } | |
12658 | else if (s[2] == 0 && s[3] != 0) { | |
12659 | /* Leading bytes | |
12660 | * 00 xx 00 xx | |
12661 | * are a good indicator of UTF-16BE. */ | |
12662 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); | |
12663 | goto utf16be; | |
12664 | } | |
01ec43d0 | 12665 | } |
e294cc5d JH |
12666 | #ifdef EBCDIC |
12667 | case 0xDD: | |
12668 | if (slen > 3 && s[1] == 0x73 && s[2] == 0x66 && s[3] == 0x73) { | |
12669 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); | |
12670 | s += 4; /* UTF-8 */ | |
12671 | } | |
12672 | break; | |
12673 | #endif | |
12674 | ||
7aa207d6 JH |
12675 | default: |
12676 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
12677 | /* Leading bytes | |
12678 | * xx 00 xx 00 | |
12679 | * are a good indicator of UTF-16LE. */ | |
12680 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); | |
12681 | goto utf16le; | |
12682 | } | |
01ec43d0 | 12683 | } |
b8f84bb2 | 12684 | return (char*)s; |
b250498f | 12685 | } |
4755096e | 12686 | |
6e3aabd6 GS |
12687 | |
12688 | #ifndef PERL_NO_UTF16_FILTER | |
12689 | static I32 | |
acfe0abc | 12690 | utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12691 | { |
97aff369 | 12692 | dVAR; |
f54cb97a AL |
12693 | const STRLEN old = SvCUR(sv); |
12694 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12695 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12696 | "utf16_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12697 | FPTR2DPTR(void *, utf16_textfilter), |
12698 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12699 | if (count) { |
12700 | U8* tmps; | |
dea0fc0b | 12701 | I32 newlen; |
a02a5408 | 12702 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12703 | Copy(SvPVX_const(sv), tmps, old, char); |
12704 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12705 | SvCUR(sv) - old, &newlen); |
12706 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12707 | } |
1de9afcd RGS |
12708 | DEBUG_P({sv_dump(sv);}); |
12709 | return SvCUR(sv); | |
6e3aabd6 GS |
12710 | } |
12711 | ||
12712 | static I32 | |
acfe0abc | 12713 | utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12714 | { |
97aff369 | 12715 | dVAR; |
f54cb97a AL |
12716 | const STRLEN old = SvCUR(sv); |
12717 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12718 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12719 | "utf16rev_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12720 | FPTR2DPTR(void *, utf16rev_textfilter), |
12721 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12722 | if (count) { |
12723 | U8* tmps; | |
dea0fc0b | 12724 | I32 newlen; |
a02a5408 | 12725 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12726 | Copy(SvPVX_const(sv), tmps, old, char); |
12727 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12728 | SvCUR(sv) - old, &newlen); |
12729 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12730 | } |
1de9afcd | 12731 | DEBUG_P({ sv_dump(sv); }); |
6e3aabd6 GS |
12732 | return count; |
12733 | } | |
12734 | #endif | |
9f4817db | 12735 | |
f333445c JP |
12736 | /* |
12737 | Returns a pointer to the next character after the parsed | |
12738 | vstring, as well as updating the passed in sv. | |
12739 | ||
12740 | Function must be called like | |
12741 | ||
561b68a9 | 12742 | sv = newSV(5); |
65b06e02 | 12743 | s = scan_vstring(s,e,sv); |
f333445c | 12744 | |
65b06e02 | 12745 | where s and e are the start and end of the string. |
f333445c JP |
12746 | The sv should already be large enough to store the vstring |
12747 | passed in, for performance reasons. | |
12748 | ||
12749 | */ | |
12750 | ||
12751 | char * | |
65b06e02 | 12752 | Perl_scan_vstring(pTHX_ const char *s, const char *e, SV *sv) |
f333445c | 12753 | { |
97aff369 | 12754 | dVAR; |
bfed75c6 AL |
12755 | const char *pos = s; |
12756 | const char *start = s; | |
f333445c | 12757 | if (*pos == 'v') pos++; /* get past 'v' */ |
65b06e02 | 12758 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
3e884cbf | 12759 | pos++; |
f333445c JP |
12760 | if ( *pos != '.') { |
12761 | /* this may not be a v-string if followed by => */ | |
bfed75c6 | 12762 | const char *next = pos; |
65b06e02 | 12763 | while (next < e && isSPACE(*next)) |
8fc7bb1c | 12764 | ++next; |
65b06e02 | 12765 | if ((e - next) >= 2 && *next == '=' && next[1] == '>' ) { |
f333445c JP |
12766 | /* return string not v-string */ |
12767 | sv_setpvn(sv,(char *)s,pos-s); | |
73d840c0 | 12768 | return (char *)pos; |
f333445c JP |
12769 | } |
12770 | } | |
12771 | ||
12772 | if (!isALPHA(*pos)) { | |
89ebb4a3 | 12773 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
f333445c | 12774 | |
d4c19fe8 AL |
12775 | if (*s == 'v') |
12776 | s++; /* get past 'v' */ | |
f333445c JP |
12777 | |
12778 | sv_setpvn(sv, "", 0); | |
12779 | ||
12780 | for (;;) { | |
d4c19fe8 | 12781 | /* this is atoi() that tolerates underscores */ |
0bd48802 AL |
12782 | U8 *tmpend; |
12783 | UV rev = 0; | |
d4c19fe8 AL |
12784 | const char *end = pos; |
12785 | UV mult = 1; | |
12786 | while (--end >= s) { | |
12787 | if (*end != '_') { | |
12788 | const UV orev = rev; | |
f333445c JP |
12789 | rev += (*end - '0') * mult; |
12790 | mult *= 10; | |
12791 | if (orev > rev && ckWARN_d(WARN_OVERFLOW)) | |
12792 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), | |
12793 | "Integer overflow in decimal number"); | |
12794 | } | |
12795 | } | |
12796 | #ifdef EBCDIC | |
12797 | if (rev > 0x7FFFFFFF) | |
12798 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
12799 | #endif | |
12800 | /* Append native character for the rev point */ | |
12801 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
12802 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
12803 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
12804 | SvUTF8_on(sv); | |
65b06e02 | 12805 | if (pos + 1 < e && *pos == '.' && isDIGIT(pos[1])) |
f333445c JP |
12806 | s = ++pos; |
12807 | else { | |
12808 | s = pos; | |
12809 | break; | |
12810 | } | |
65b06e02 | 12811 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
f333445c JP |
12812 | pos++; |
12813 | } | |
12814 | SvPOK_on(sv); | |
12815 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
12816 | SvRMAGICAL_on(sv); | |
12817 | } | |
73d840c0 | 12818 | return (char *)s; |
f333445c JP |
12819 | } |
12820 | ||
1da4ca5f NC |
12821 | /* |
12822 | * Local variables: | |
12823 | * c-indentation-style: bsd | |
12824 | * c-basic-offset: 4 | |
12825 | * indent-tabs-mode: t | |
12826 | * End: | |
12827 | * | |
37442d52 RGS |
12828 | * ex: set ts=8 sts=4 sw=4 noet: |
12829 | */ |