Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* toke.c |
a687059c | 2 | * |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
b94e2f88 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 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 | |
12fbd33b DM |
26 | #define yychar (*PL_yycharp) |
27 | #define yylval (*PL_yylvalp) | |
d3b6f988 | 28 | |
0bd48802 | 29 | static const char ident_too_long[] = "Identifier too long"; |
c445ea15 | 30 | static const char commaless_variable_list[] = "comma-less variable list"; |
8903cb82 | 31 | |
acfe0abc | 32 | static void restore_rsfp(pTHX_ void *f); |
6e3aabd6 | 33 | #ifndef PERL_NO_UTF16_FILTER |
acfe0abc GS |
34 | static I32 utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen); |
35 | static I32 utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen); | |
6e3aabd6 | 36 | #endif |
51371543 | 37 | |
9059aa12 LW |
38 | #define XFAKEBRACK 128 |
39 | #define XENUMMASK 127 | |
40 | ||
39e02b42 JH |
41 | #ifdef USE_UTF8_SCRIPTS |
42 | # define UTF (!IN_BYTES) | |
2b9d42f0 | 43 | #else |
746b446a | 44 | # define UTF ((PL_linestr && DO_UTF8(PL_linestr)) || (PL_hints & HINT_UTF8)) |
2b9d42f0 | 45 | #endif |
a0ed51b3 | 46 | |
61f0cdd9 | 47 | /* In variables named $^X, these are the legal values for X. |
2b92dfce GS |
48 | * 1999-02-27 mjd-perl-patch@plover.com */ |
49 | #define isCONTROLVAR(x) (isUPPER(x) || strchr("[\\]^_?", (x))) | |
50 | ||
bf4acbe4 GS |
51 | /* On MacOS, respect nonbreaking spaces */ |
52 | #ifdef MACOS_TRADITIONAL | |
53 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\312'||(c)=='\t') | |
54 | #else | |
55 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\t') | |
56 | #endif | |
57 | ||
ffb4593c NT |
58 | /* LEX_* are values for PL_lex_state, the state of the lexer. |
59 | * They are arranged oddly so that the guard on the switch statement | |
79072805 LW |
60 | * can get by with a single comparison (if the compiler is smart enough). |
61 | */ | |
62 | ||
fb73857a | 63 | /* #define LEX_NOTPARSING 11 is done in perl.h. */ |
64 | ||
b6007c36 DM |
65 | #define LEX_NORMAL 10 /* normal code (ie not within "...") */ |
66 | #define LEX_INTERPNORMAL 9 /* code within a string, eg "$foo[$x+1]" */ | |
67 | #define LEX_INTERPCASEMOD 8 /* expecting a \U, \Q or \E etc */ | |
68 | #define LEX_INTERPPUSH 7 /* starting a new sublex parse level */ | |
69 | #define LEX_INTERPSTART 6 /* expecting the start of a $var */ | |
70 | ||
71 | /* at end of code, eg "$x" followed by: */ | |
72 | #define LEX_INTERPEND 5 /* ... eg not one of [, { or -> */ | |
73 | #define LEX_INTERPENDMAYBE 4 /* ... eg one of [, { or -> */ | |
74 | ||
75 | #define LEX_INTERPCONCAT 3 /* expecting anything, eg at start of | |
76 | string or after \E, $foo, etc */ | |
77 | #define LEX_INTERPCONST 2 /* NOT USED */ | |
78 | #define LEX_FORMLINE 1 /* expecting a format line */ | |
79 | #define LEX_KNOWNEXT 0 /* next token known; just return it */ | |
80 | ||
79072805 | 81 | |
bbf60fe6 | 82 | #ifdef DEBUGGING |
27da23d5 | 83 | static const char* const lex_state_names[] = { |
bbf60fe6 DM |
84 | "KNOWNEXT", |
85 | "FORMLINE", | |
86 | "INTERPCONST", | |
87 | "INTERPCONCAT", | |
88 | "INTERPENDMAYBE", | |
89 | "INTERPEND", | |
90 | "INTERPSTART", | |
91 | "INTERPPUSH", | |
92 | "INTERPCASEMOD", | |
93 | "INTERPNORMAL", | |
94 | "NORMAL" | |
95 | }; | |
96 | #endif | |
97 | ||
79072805 LW |
98 | #ifdef ff_next |
99 | #undef ff_next | |
d48672a2 LW |
100 | #endif |
101 | ||
79072805 | 102 | #include "keywords.h" |
fe14fcc3 | 103 | |
ffb4593c NT |
104 | /* CLINE is a macro that ensures PL_copline has a sane value */ |
105 | ||
ae986130 LW |
106 | #ifdef CLINE |
107 | #undef CLINE | |
108 | #endif | |
57843af0 | 109 | #define CLINE (PL_copline = (CopLINE(PL_curcop) < PL_copline ? CopLINE(PL_curcop) : PL_copline)) |
3280af22 | 110 | |
ffb4593c NT |
111 | /* |
112 | * Convenience functions to return different tokens and prime the | |
9cbb5ea2 | 113 | * lexer for the next token. They all take an argument. |
ffb4593c NT |
114 | * |
115 | * TOKEN : generic token (used for '(', DOLSHARP, etc) | |
116 | * OPERATOR : generic operator | |
117 | * AOPERATOR : assignment operator | |
118 | * PREBLOCK : beginning the block after an if, while, foreach, ... | |
119 | * PRETERMBLOCK : beginning a non-code-defining {} block (eg, hash ref) | |
120 | * PREREF : *EXPR where EXPR is not a simple identifier | |
121 | * TERM : expression term | |
122 | * LOOPX : loop exiting command (goto, last, dump, etc) | |
123 | * FTST : file test operator | |
124 | * FUN0 : zero-argument function | |
2d2e263d | 125 | * FUN1 : not used, except for not, which isn't a UNIOP |
ffb4593c NT |
126 | * BOop : bitwise or or xor |
127 | * BAop : bitwise and | |
128 | * SHop : shift operator | |
129 | * PWop : power operator | |
9cbb5ea2 | 130 | * PMop : pattern-matching operator |
ffb4593c NT |
131 | * Aop : addition-level operator |
132 | * Mop : multiplication-level operator | |
133 | * Eop : equality-testing operator | |
e5edeb50 | 134 | * Rop : relational operator <= != gt |
ffb4593c NT |
135 | * |
136 | * Also see LOP and lop() below. | |
137 | */ | |
138 | ||
998054bd | 139 | #ifdef DEBUGGING /* Serve -DT. */ |
f5bd084c | 140 | # define REPORT(retval) tokereport((I32)retval) |
998054bd | 141 | #else |
bbf60fe6 | 142 | # define REPORT(retval) (retval) |
998054bd SC |
143 | #endif |
144 | ||
bbf60fe6 DM |
145 | #define TOKEN(retval) return ( PL_bufptr = s, REPORT(retval)) |
146 | #define OPERATOR(retval) return (PL_expect = XTERM, PL_bufptr = s, REPORT(retval)) | |
147 | #define AOPERATOR(retval) return ao((PL_expect = XTERM, PL_bufptr = s, REPORT(retval))) | |
148 | #define PREBLOCK(retval) return (PL_expect = XBLOCK,PL_bufptr = s, REPORT(retval)) | |
149 | #define PRETERMBLOCK(retval) return (PL_expect = XTERMBLOCK,PL_bufptr = s, REPORT(retval)) | |
150 | #define PREREF(retval) return (PL_expect = XREF,PL_bufptr = s, REPORT(retval)) | |
151 | #define TERM(retval) return (CLINE, PL_expect = XOPERATOR, PL_bufptr = s, REPORT(retval)) | |
152 | #define LOOPX(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)LOOPEX)) | |
153 | #define FTST(f) return (yylval.ival=f, PL_expect=XTERMORDORDOR, PL_bufptr=s, REPORT((int)UNIOP)) | |
154 | #define FUN0(f) return (yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC0)) | |
155 | #define FUN1(f) return (yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC1)) | |
156 | #define BOop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITOROP))) | |
157 | #define BAop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITANDOP))) | |
158 | #define SHop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)SHIFTOP))) | |
159 | #define PWop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)POWOP))) | |
160 | #define PMop(f) return(yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MATCHOP)) | |
161 | #define Aop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)ADDOP))) | |
162 | #define Mop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MULOP))) | |
163 | #define Eop(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)EQOP)) | |
164 | #define Rop(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)RELOP)) | |
2f3197b3 | 165 | |
a687059c LW |
166 | /* This bit of chicanery makes a unary function followed by |
167 | * a parenthesis into a function with one argument, highest precedence. | |
6f33ba73 RGS |
168 | * The UNIDOR macro is for unary functions that can be followed by the // |
169 | * operator (such as C<shift // 0>). | |
a687059c | 170 | */ |
376fcdbf AL |
171 | #define UNI2(f,x) { \ |
172 | yylval.ival = f; \ | |
173 | PL_expect = x; \ | |
174 | PL_bufptr = s; \ | |
175 | PL_last_uni = PL_oldbufptr; \ | |
176 | PL_last_lop_op = f; \ | |
177 | if (*s == '(') \ | |
178 | return REPORT( (int)FUNC1 ); \ | |
179 | s = skipspace(s); \ | |
180 | return REPORT( *s=='(' ? (int)FUNC1 : (int)UNIOP ); \ | |
181 | } | |
6f33ba73 RGS |
182 | #define UNI(f) UNI2(f,XTERM) |
183 | #define UNIDOR(f) UNI2(f,XTERMORDORDOR) | |
a687059c | 184 | |
376fcdbf AL |
185 | #define UNIBRACK(f) { \ |
186 | yylval.ival = f; \ | |
187 | PL_bufptr = s; \ | |
188 | PL_last_uni = PL_oldbufptr; \ | |
189 | if (*s == '(') \ | |
190 | return REPORT( (int)FUNC1 ); \ | |
191 | s = skipspace(s); \ | |
192 | return REPORT( (*s == '(') ? (int)FUNC1 : (int)UNIOP ); \ | |
193 | } | |
79072805 | 194 | |
9f68db38 | 195 | /* grandfather return to old style */ |
3280af22 | 196 | #define OLDLOP(f) return(yylval.ival=f,PL_expect = XTERM,PL_bufptr = s,(int)LSTOP) |
79072805 | 197 | |
8fa7f367 JH |
198 | #ifdef DEBUGGING |
199 | ||
bbf60fe6 DM |
200 | /* how to interpret the yylval associated with the token */ |
201 | enum token_type { | |
202 | TOKENTYPE_NONE, | |
203 | TOKENTYPE_IVAL, | |
204 | TOKENTYPE_OPNUM, /* yylval.ival contains an opcode number */ | |
205 | TOKENTYPE_PVAL, | |
206 | TOKENTYPE_OPVAL, | |
207 | TOKENTYPE_GVVAL | |
208 | }; | |
209 | ||
27da23d5 JH |
210 | static struct debug_tokens { const int token, type; const char *name; } |
211 | const debug_tokens[] = | |
9041c2e3 | 212 | { |
bbf60fe6 DM |
213 | { ADDOP, TOKENTYPE_OPNUM, "ADDOP" }, |
214 | { ANDAND, TOKENTYPE_NONE, "ANDAND" }, | |
215 | { ANDOP, TOKENTYPE_NONE, "ANDOP" }, | |
216 | { ANONSUB, TOKENTYPE_IVAL, "ANONSUB" }, | |
217 | { ARROW, TOKENTYPE_NONE, "ARROW" }, | |
218 | { ASSIGNOP, TOKENTYPE_OPNUM, "ASSIGNOP" }, | |
219 | { BITANDOP, TOKENTYPE_OPNUM, "BITANDOP" }, | |
220 | { BITOROP, TOKENTYPE_OPNUM, "BITOROP" }, | |
221 | { COLONATTR, TOKENTYPE_NONE, "COLONATTR" }, | |
222 | { CONTINUE, TOKENTYPE_NONE, "CONTINUE" }, | |
0d863452 | 223 | { DEFAULT, TOKENTYPE_NONE, "DEFAULT" }, |
bbf60fe6 DM |
224 | { DO, TOKENTYPE_NONE, "DO" }, |
225 | { DOLSHARP, TOKENTYPE_NONE, "DOLSHARP" }, | |
226 | { DORDOR, TOKENTYPE_NONE, "DORDOR" }, | |
227 | { DOROP, TOKENTYPE_OPNUM, "DOROP" }, | |
228 | { DOTDOT, TOKENTYPE_IVAL, "DOTDOT" }, | |
229 | { ELSE, TOKENTYPE_NONE, "ELSE" }, | |
230 | { ELSIF, TOKENTYPE_IVAL, "ELSIF" }, | |
231 | { EQOP, TOKENTYPE_OPNUM, "EQOP" }, | |
232 | { FOR, TOKENTYPE_IVAL, "FOR" }, | |
233 | { FORMAT, TOKENTYPE_NONE, "FORMAT" }, | |
234 | { FUNC, TOKENTYPE_OPNUM, "FUNC" }, | |
235 | { FUNC0, TOKENTYPE_OPNUM, "FUNC0" }, | |
236 | { FUNC0SUB, TOKENTYPE_OPVAL, "FUNC0SUB" }, | |
237 | { FUNC1, TOKENTYPE_OPNUM, "FUNC1" }, | |
238 | { FUNCMETH, TOKENTYPE_OPVAL, "FUNCMETH" }, | |
0d863452 | 239 | { GIVEN, TOKENTYPE_IVAL, "GIVEN" }, |
bbf60fe6 DM |
240 | { HASHBRACK, TOKENTYPE_NONE, "HASHBRACK" }, |
241 | { IF, TOKENTYPE_IVAL, "IF" }, | |
242 | { LABEL, TOKENTYPE_PVAL, "LABEL" }, | |
243 | { LOCAL, TOKENTYPE_IVAL, "LOCAL" }, | |
244 | { LOOPEX, TOKENTYPE_OPNUM, "LOOPEX" }, | |
245 | { LSTOP, TOKENTYPE_OPNUM, "LSTOP" }, | |
246 | { LSTOPSUB, TOKENTYPE_OPVAL, "LSTOPSUB" }, | |
247 | { MATCHOP, TOKENTYPE_OPNUM, "MATCHOP" }, | |
248 | { METHOD, TOKENTYPE_OPVAL, "METHOD" }, | |
249 | { MULOP, TOKENTYPE_OPNUM, "MULOP" }, | |
250 | { MY, TOKENTYPE_IVAL, "MY" }, | |
251 | { MYSUB, TOKENTYPE_NONE, "MYSUB" }, | |
252 | { NOAMP, TOKENTYPE_NONE, "NOAMP" }, | |
253 | { NOTOP, TOKENTYPE_NONE, "NOTOP" }, | |
254 | { OROP, TOKENTYPE_IVAL, "OROP" }, | |
255 | { OROR, TOKENTYPE_NONE, "OROR" }, | |
256 | { PACKAGE, TOKENTYPE_NONE, "PACKAGE" }, | |
257 | { PMFUNC, TOKENTYPE_OPVAL, "PMFUNC" }, | |
258 | { POSTDEC, TOKENTYPE_NONE, "POSTDEC" }, | |
259 | { POSTINC, TOKENTYPE_NONE, "POSTINC" }, | |
260 | { POWOP, TOKENTYPE_OPNUM, "POWOP" }, | |
261 | { PREDEC, TOKENTYPE_NONE, "PREDEC" }, | |
262 | { PREINC, TOKENTYPE_NONE, "PREINC" }, | |
263 | { PRIVATEREF, TOKENTYPE_OPVAL, "PRIVATEREF" }, | |
264 | { REFGEN, TOKENTYPE_NONE, "REFGEN" }, | |
265 | { RELOP, TOKENTYPE_OPNUM, "RELOP" }, | |
266 | { SHIFTOP, TOKENTYPE_OPNUM, "SHIFTOP" }, | |
267 | { SUB, TOKENTYPE_NONE, "SUB" }, | |
268 | { THING, TOKENTYPE_OPVAL, "THING" }, | |
269 | { UMINUS, TOKENTYPE_NONE, "UMINUS" }, | |
270 | { UNIOP, TOKENTYPE_OPNUM, "UNIOP" }, | |
271 | { UNIOPSUB, TOKENTYPE_OPVAL, "UNIOPSUB" }, | |
272 | { UNLESS, TOKENTYPE_IVAL, "UNLESS" }, | |
273 | { UNTIL, TOKENTYPE_IVAL, "UNTIL" }, | |
274 | { USE, TOKENTYPE_IVAL, "USE" }, | |
0d863452 | 275 | { WHEN, TOKENTYPE_IVAL, "WHEN" }, |
bbf60fe6 DM |
276 | { WHILE, TOKENTYPE_IVAL, "WHILE" }, |
277 | { WORD, TOKENTYPE_OPVAL, "WORD" }, | |
278 | { 0, TOKENTYPE_NONE, 0 } | |
279 | }; | |
280 | ||
281 | /* dump the returned token in rv, plus any optional arg in yylval */ | |
998054bd | 282 | |
bbf60fe6 | 283 | STATIC int |
f5bd084c | 284 | S_tokereport(pTHX_ I32 rv) |
bbf60fe6 | 285 | { |
97aff369 | 286 | dVAR; |
bbf60fe6 | 287 | if (DEBUG_T_TEST) { |
bfed75c6 | 288 | const char *name = Nullch; |
bbf60fe6 | 289 | enum token_type type = TOKENTYPE_NONE; |
f54cb97a | 290 | const struct debug_tokens *p; |
396482e1 | 291 | SV* const report = newSVpvs("<== "); |
bbf60fe6 | 292 | |
f54cb97a | 293 | for (p = debug_tokens; p->token; p++) { |
bbf60fe6 DM |
294 | if (p->token == (int)rv) { |
295 | name = p->name; | |
296 | type = p->type; | |
297 | break; | |
298 | } | |
299 | } | |
300 | if (name) | |
54667de8 | 301 | Perl_sv_catpv(aTHX_ report, name); |
bbf60fe6 DM |
302 | else if ((char)rv > ' ' && (char)rv < '~') |
303 | Perl_sv_catpvf(aTHX_ report, "'%c'", (char)rv); | |
304 | else if (!rv) | |
396482e1 | 305 | sv_catpvs(report, "EOF"); |
bbf60fe6 DM |
306 | else |
307 | Perl_sv_catpvf(aTHX_ report, "?? %"IVdf, (IV)rv); | |
308 | switch (type) { | |
309 | case TOKENTYPE_NONE: | |
310 | case TOKENTYPE_GVVAL: /* doesn't appear to be used */ | |
311 | break; | |
312 | case TOKENTYPE_IVAL: | |
e4584336 | 313 | Perl_sv_catpvf(aTHX_ report, "(ival=%"IVdf")", (IV)yylval.ival); |
bbf60fe6 DM |
314 | break; |
315 | case TOKENTYPE_OPNUM: | |
316 | Perl_sv_catpvf(aTHX_ report, "(ival=op_%s)", | |
317 | PL_op_name[yylval.ival]); | |
318 | break; | |
319 | case TOKENTYPE_PVAL: | |
320 | Perl_sv_catpvf(aTHX_ report, "(pval=\"%s\")", yylval.pval); | |
321 | break; | |
322 | case TOKENTYPE_OPVAL: | |
b6007c36 | 323 | if (yylval.opval) { |
401441c0 | 324 | Perl_sv_catpvf(aTHX_ report, "(opval=op_%s)", |
bbf60fe6 | 325 | PL_op_name[yylval.opval->op_type]); |
b6007c36 DM |
326 | if (yylval.opval->op_type == OP_CONST) { |
327 | Perl_sv_catpvf(aTHX_ report, " %s", | |
328 | SvPEEK(cSVOPx_sv(yylval.opval))); | |
329 | } | |
330 | ||
331 | } | |
401441c0 | 332 | else |
396482e1 | 333 | sv_catpvs(report, "(opval=null)"); |
bbf60fe6 DM |
334 | break; |
335 | } | |
b6007c36 | 336 | PerlIO_printf(Perl_debug_log, "### %s\n\n", SvPV_nolen_const(report)); |
bbf60fe6 DM |
337 | }; |
338 | return (int)rv; | |
998054bd SC |
339 | } |
340 | ||
b6007c36 DM |
341 | |
342 | /* print the buffer with suitable escapes */ | |
343 | ||
344 | STATIC void | |
345 | S_printbuf(pTHX_ const char* fmt, const char* s) | |
346 | { | |
396482e1 | 347 | SV* const tmp = newSVpvs(""); |
b6007c36 DM |
348 | PerlIO_printf(Perl_debug_log, fmt, pv_display(tmp, s, strlen(s), 0, 60)); |
349 | SvREFCNT_dec(tmp); | |
350 | } | |
351 | ||
8fa7f367 JH |
352 | #endif |
353 | ||
ffb4593c NT |
354 | /* |
355 | * S_ao | |
356 | * | |
c963b151 BD |
357 | * This subroutine detects &&=, ||=, and //= and turns an ANDAND, OROR or DORDOR |
358 | * into an OP_ANDASSIGN, OP_ORASSIGN, or OP_DORASSIGN | |
ffb4593c NT |
359 | */ |
360 | ||
76e3520e | 361 | STATIC int |
cea2e8a9 | 362 | S_ao(pTHX_ int toketype) |
a0d0e21e | 363 | { |
97aff369 | 364 | dVAR; |
3280af22 NIS |
365 | if (*PL_bufptr == '=') { |
366 | PL_bufptr++; | |
a0d0e21e LW |
367 | if (toketype == ANDAND) |
368 | yylval.ival = OP_ANDASSIGN; | |
369 | else if (toketype == OROR) | |
370 | yylval.ival = OP_ORASSIGN; | |
c963b151 BD |
371 | else if (toketype == DORDOR) |
372 | yylval.ival = OP_DORASSIGN; | |
a0d0e21e LW |
373 | toketype = ASSIGNOP; |
374 | } | |
375 | return toketype; | |
376 | } | |
377 | ||
ffb4593c NT |
378 | /* |
379 | * S_no_op | |
380 | * When Perl expects an operator and finds something else, no_op | |
381 | * prints the warning. It always prints "<something> found where | |
382 | * operator expected. It prints "Missing semicolon on previous line?" | |
383 | * if the surprise occurs at the start of the line. "do you need to | |
384 | * predeclare ..." is printed out for code like "sub bar; foo bar $x" | |
385 | * where the compiler doesn't know if foo is a method call or a function. | |
386 | * It prints "Missing operator before end of line" if there's nothing | |
387 | * after the missing operator, or "... before <...>" if there is something | |
388 | * after the missing operator. | |
389 | */ | |
390 | ||
76e3520e | 391 | STATIC void |
bfed75c6 | 392 | S_no_op(pTHX_ const char *what, char *s) |
463ee0b2 | 393 | { |
97aff369 | 394 | dVAR; |
9d4ba2ae AL |
395 | char * const oldbp = PL_bufptr; |
396 | const bool is_first = (PL_oldbufptr == PL_linestart); | |
68dc0745 | 397 | |
1189a94a GS |
398 | if (!s) |
399 | s = oldbp; | |
07c798fb | 400 | else |
1189a94a | 401 | PL_bufptr = s; |
cea2e8a9 | 402 | yywarn(Perl_form(aTHX_ "%s found where operator expected", what)); |
56da5a46 RGS |
403 | if (ckWARN_d(WARN_SYNTAX)) { |
404 | if (is_first) | |
405 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
406 | "\t(Missing semicolon on previous line?)\n"); | |
407 | else if (PL_oldoldbufptr && isIDFIRST_lazy_if(PL_oldoldbufptr,UTF)) { | |
f54cb97a | 408 | const char *t; |
56da5a46 RGS |
409 | for (t = PL_oldoldbufptr; *t && (isALNUM_lazy_if(t,UTF) || *t == ':'); t++) ; |
410 | if (t < PL_bufptr && isSPACE(*t)) | |
411 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
412 | "\t(Do you need to predeclare %.*s?)\n", | |
551405c4 | 413 | (int)(t - PL_oldoldbufptr), PL_oldoldbufptr); |
56da5a46 RGS |
414 | } |
415 | else { | |
416 | assert(s >= oldbp); | |
417 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
551405c4 | 418 | "\t(Missing operator before %.*s?)\n", (int)(s - oldbp), oldbp); |
56da5a46 | 419 | } |
07c798fb | 420 | } |
3280af22 | 421 | PL_bufptr = oldbp; |
8990e307 LW |
422 | } |
423 | ||
ffb4593c NT |
424 | /* |
425 | * S_missingterm | |
426 | * Complain about missing quote/regexp/heredoc terminator. | |
427 | * If it's called with (char *)NULL then it cauterizes the line buffer. | |
428 | * If we're in a delimited string and the delimiter is a control | |
429 | * character, it's reformatted into a two-char sequence like ^C. | |
430 | * This is fatal. | |
431 | */ | |
432 | ||
76e3520e | 433 | STATIC void |
cea2e8a9 | 434 | S_missingterm(pTHX_ char *s) |
8990e307 | 435 | { |
97aff369 | 436 | dVAR; |
8990e307 LW |
437 | char tmpbuf[3]; |
438 | char q; | |
439 | if (s) { | |
9d4ba2ae | 440 | char * const nl = strrchr(s,'\n'); |
d2719217 | 441 | if (nl) |
8990e307 LW |
442 | *nl = '\0'; |
443 | } | |
9d116dd7 JH |
444 | else if ( |
445 | #ifdef EBCDIC | |
446 | iscntrl(PL_multi_close) | |
447 | #else | |
448 | PL_multi_close < 32 || PL_multi_close == 127 | |
449 | #endif | |
450 | ) { | |
8990e307 | 451 | *tmpbuf = '^'; |
585ec06d | 452 | tmpbuf[1] = (char)toCTRL(PL_multi_close); |
8990e307 LW |
453 | tmpbuf[2] = '\0'; |
454 | s = tmpbuf; | |
455 | } | |
456 | else { | |
eb160463 | 457 | *tmpbuf = (char)PL_multi_close; |
8990e307 LW |
458 | tmpbuf[1] = '\0'; |
459 | s = tmpbuf; | |
460 | } | |
461 | q = strchr(s,'"') ? '\'' : '"'; | |
cea2e8a9 | 462 | Perl_croak(aTHX_ "Can't find string terminator %c%s%c anywhere before EOF",q,s,q); |
463ee0b2 | 463 | } |
79072805 | 464 | |
ef89dcc3 | 465 | #define FEATURE_IS_ENABLED(name) \ |
0d863452 | 466 | ((0 != (PL_hints & HINT_LOCALIZE_HH)) \ |
89529cee | 467 | && S_feature_is_enabled(aTHX_ STR_WITH_LEN(name))) |
0d863452 RH |
468 | /* |
469 | * S_feature_is_enabled | |
470 | * Check whether the named feature is enabled. | |
471 | */ | |
472 | STATIC bool | |
473 | S_feature_is_enabled(pTHX_ char *name, STRLEN namelen) | |
474 | { | |
97aff369 | 475 | dVAR; |
0d863452 | 476 | HV * const hinthv = GvHV(PL_hintgv); |
7b9ef140 RH |
477 | char he_name[32] = "feature_"; |
478 | (void) strncpy(&he_name[8], name, 24); | |
479 | ||
480 | return (hinthv && hv_exists(hinthv, he_name, 8 + namelen)); | |
0d863452 RH |
481 | } |
482 | ||
ffb4593c NT |
483 | /* |
484 | * Perl_deprecate | |
ffb4593c NT |
485 | */ |
486 | ||
79072805 | 487 | void |
bfed75c6 | 488 | Perl_deprecate(pTHX_ const char *s) |
a0d0e21e | 489 | { |
599cee73 | 490 | if (ckWARN(WARN_DEPRECATED)) |
9014280d | 491 | Perl_warner(aTHX_ packWARN(WARN_DEPRECATED), "Use of %s is deprecated", s); |
a0d0e21e LW |
492 | } |
493 | ||
12bcd1a6 | 494 | void |
bfed75c6 | 495 | Perl_deprecate_old(pTHX_ const char *s) |
12bcd1a6 PM |
496 | { |
497 | /* This function should NOT be called for any new deprecated warnings */ | |
498 | /* Use Perl_deprecate instead */ | |
499 | /* */ | |
500 | /* It is here to maintain backward compatibility with the pre-5.8 */ | |
501 | /* warnings category hierarchy. The "deprecated" category used to */ | |
502 | /* live under the "syntax" category. It is now a top-level category */ | |
503 | /* in its own right. */ | |
504 | ||
505 | if (ckWARN2(WARN_DEPRECATED, WARN_SYNTAX)) | |
bfed75c6 | 506 | Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX), |
12bcd1a6 PM |
507 | "Use of %s is deprecated", s); |
508 | } | |
509 | ||
ffb4593c | 510 | /* |
9cbb5ea2 GS |
511 | * experimental text filters for win32 carriage-returns, utf16-to-utf8 and |
512 | * utf16-to-utf8-reversed. | |
ffb4593c NT |
513 | */ |
514 | ||
c39cd008 GS |
515 | #ifdef PERL_CR_FILTER |
516 | static void | |
517 | strip_return(SV *sv) | |
518 | { | |
95a20fc0 | 519 | register const char *s = SvPVX_const(sv); |
9d4ba2ae | 520 | register const char * const e = s + SvCUR(sv); |
c39cd008 GS |
521 | /* outer loop optimized to do nothing if there are no CR-LFs */ |
522 | while (s < e) { | |
523 | if (*s++ == '\r' && *s == '\n') { | |
524 | /* hit a CR-LF, need to copy the rest */ | |
525 | register char *d = s - 1; | |
526 | *d++ = *s++; | |
527 | while (s < e) { | |
528 | if (*s == '\r' && s[1] == '\n') | |
529 | s++; | |
530 | *d++ = *s++; | |
531 | } | |
532 | SvCUR(sv) -= s - d; | |
533 | return; | |
534 | } | |
535 | } | |
536 | } | |
a868473f | 537 | |
76e3520e | 538 | STATIC I32 |
c39cd008 | 539 | S_cr_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
a868473f | 540 | { |
f54cb97a | 541 | const I32 count = FILTER_READ(idx+1, sv, maxlen); |
c39cd008 GS |
542 | if (count > 0 && !maxlen) |
543 | strip_return(sv); | |
544 | return count; | |
a868473f NIS |
545 | } |
546 | #endif | |
547 | ||
ffb4593c NT |
548 | /* |
549 | * Perl_lex_start | |
9cbb5ea2 GS |
550 | * Initialize variables. Uses the Perl save_stack to save its state (for |
551 | * recursive calls to the parser). | |
ffb4593c NT |
552 | */ |
553 | ||
a0d0e21e | 554 | void |
864dbfa3 | 555 | Perl_lex_start(pTHX_ SV *line) |
79072805 | 556 | { |
97aff369 | 557 | dVAR; |
cfd0369c | 558 | const char *s; |
8990e307 LW |
559 | STRLEN len; |
560 | ||
3280af22 NIS |
561 | SAVEI32(PL_lex_dojoin); |
562 | SAVEI32(PL_lex_brackets); | |
3280af22 NIS |
563 | SAVEI32(PL_lex_casemods); |
564 | SAVEI32(PL_lex_starts); | |
565 | SAVEI32(PL_lex_state); | |
7766f137 | 566 | SAVEVPTR(PL_lex_inpat); |
3280af22 | 567 | SAVEI32(PL_lex_inwhat); |
18b09519 GS |
568 | if (PL_lex_state == LEX_KNOWNEXT) { |
569 | I32 toke = PL_nexttoke; | |
570 | while (--toke >= 0) { | |
571 | SAVEI32(PL_nexttype[toke]); | |
572 | SAVEVPTR(PL_nextval[toke]); | |
573 | } | |
574 | SAVEI32(PL_nexttoke); | |
18b09519 | 575 | } |
57843af0 | 576 | SAVECOPLINE(PL_curcop); |
3280af22 NIS |
577 | SAVEPPTR(PL_bufptr); |
578 | SAVEPPTR(PL_bufend); | |
579 | SAVEPPTR(PL_oldbufptr); | |
580 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
581 | SAVEPPTR(PL_last_lop); |
582 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
583 | SAVEPPTR(PL_linestart); |
584 | SAVESPTR(PL_linestr); | |
8edd5f42 RGS |
585 | SAVEGENERICPV(PL_lex_brackstack); |
586 | SAVEGENERICPV(PL_lex_casestack); | |
c76ac1ee | 587 | SAVEDESTRUCTOR_X(restore_rsfp, PL_rsfp); |
3280af22 NIS |
588 | SAVESPTR(PL_lex_stuff); |
589 | SAVEI32(PL_lex_defer); | |
09bef843 | 590 | SAVEI32(PL_sublex_info.sub_inwhat); |
3280af22 | 591 | SAVESPTR(PL_lex_repl); |
bebdddfc GS |
592 | SAVEINT(PL_expect); |
593 | SAVEINT(PL_lex_expect); | |
3280af22 NIS |
594 | |
595 | PL_lex_state = LEX_NORMAL; | |
596 | PL_lex_defer = 0; | |
597 | PL_expect = XSTATE; | |
598 | PL_lex_brackets = 0; | |
a02a5408 JC |
599 | Newx(PL_lex_brackstack, 120, char); |
600 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
601 | PL_lex_casemods = 0; |
602 | *PL_lex_casestack = '\0'; | |
603 | PL_lex_dojoin = 0; | |
604 | PL_lex_starts = 0; | |
605 | PL_lex_stuff = Nullsv; | |
606 | PL_lex_repl = Nullsv; | |
607 | PL_lex_inpat = 0; | |
76be56bc | 608 | PL_nexttoke = 0; |
3280af22 | 609 | PL_lex_inwhat = 0; |
09bef843 | 610 | PL_sublex_info.sub_inwhat = 0; |
3280af22 NIS |
611 | PL_linestr = line; |
612 | if (SvREADONLY(PL_linestr)) | |
613 | PL_linestr = sv_2mortal(newSVsv(PL_linestr)); | |
cfd0369c | 614 | s = SvPV_const(PL_linestr, len); |
6f27f9a7 | 615 | if (!len || s[len-1] != ';') { |
3280af22 NIS |
616 | if (!(SvFLAGS(PL_linestr) & SVs_TEMP)) |
617 | PL_linestr = sv_2mortal(newSVsv(PL_linestr)); | |
396482e1 | 618 | sv_catpvs(PL_linestr, "\n;"); |
8990e307 | 619 | } |
3280af22 NIS |
620 | SvTEMP_off(PL_linestr); |
621 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
622 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); | |
207e3d1a | 623 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 | 624 | PL_rsfp = 0; |
79072805 | 625 | } |
a687059c | 626 | |
ffb4593c NT |
627 | /* |
628 | * Perl_lex_end | |
9cbb5ea2 GS |
629 | * Finalizer for lexing operations. Must be called when the parser is |
630 | * done with the lexer. | |
ffb4593c NT |
631 | */ |
632 | ||
463ee0b2 | 633 | void |
864dbfa3 | 634 | Perl_lex_end(pTHX) |
463ee0b2 | 635 | { |
97aff369 | 636 | dVAR; |
3280af22 | 637 | PL_doextract = FALSE; |
463ee0b2 LW |
638 | } |
639 | ||
ffb4593c NT |
640 | /* |
641 | * S_incline | |
642 | * This subroutine has nothing to do with tilting, whether at windmills | |
643 | * or pinball tables. Its name is short for "increment line". It | |
57843af0 | 644 | * increments the current line number in CopLINE(PL_curcop) and checks |
ffb4593c | 645 | * to see whether the line starts with a comment of the form |
9cbb5ea2 GS |
646 | * # line 500 "foo.pm" |
647 | * If so, it sets the current line number and file to the values in the comment. | |
ffb4593c NT |
648 | */ |
649 | ||
76e3520e | 650 | STATIC void |
cea2e8a9 | 651 | S_incline(pTHX_ char *s) |
463ee0b2 | 652 | { |
97aff369 | 653 | dVAR; |
463ee0b2 LW |
654 | char *t; |
655 | char *n; | |
73659bf1 | 656 | char *e; |
463ee0b2 | 657 | char ch; |
463ee0b2 | 658 | |
57843af0 | 659 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
660 | if (*s++ != '#') |
661 | return; | |
bf4acbe4 | 662 | while (SPACE_OR_TAB(*s)) s++; |
73659bf1 GS |
663 | if (strnEQ(s, "line", 4)) |
664 | s += 4; | |
665 | else | |
666 | return; | |
084592ab | 667 | if (SPACE_OR_TAB(*s)) |
73659bf1 | 668 | s++; |
4e553d73 | 669 | else |
73659bf1 | 670 | return; |
bf4acbe4 | 671 | while (SPACE_OR_TAB(*s)) s++; |
463ee0b2 LW |
672 | if (!isDIGIT(*s)) |
673 | return; | |
674 | n = s; | |
675 | while (isDIGIT(*s)) | |
676 | s++; | |
bf4acbe4 | 677 | while (SPACE_OR_TAB(*s)) |
463ee0b2 | 678 | s++; |
73659bf1 | 679 | if (*s == '"' && (t = strchr(s+1, '"'))) { |
463ee0b2 | 680 | s++; |
73659bf1 GS |
681 | e = t + 1; |
682 | } | |
463ee0b2 | 683 | else { |
463ee0b2 | 684 | for (t = s; !isSPACE(*t); t++) ; |
73659bf1 | 685 | e = t; |
463ee0b2 | 686 | } |
bf4acbe4 | 687 | while (SPACE_OR_TAB(*e) || *e == '\r' || *e == '\f') |
73659bf1 GS |
688 | e++; |
689 | if (*e != '\n' && *e != '\0') | |
690 | return; /* false alarm */ | |
691 | ||
463ee0b2 LW |
692 | ch = *t; |
693 | *t = '\0'; | |
f4dd75d9 | 694 | if (t - s > 0) { |
8a5ee598 | 695 | #ifndef USE_ITHREADS |
c4420975 | 696 | const char * const cf = CopFILE(PL_curcop); |
42d9b98d NC |
697 | STRLEN tmplen = cf ? strlen(cf) : 0; |
698 | if (tmplen > 7 && strnEQ(cf, "(eval ", 6)) { | |
e66cf94c RGS |
699 | /* must copy *{"::_<(eval N)[oldfilename:L]"} |
700 | * to *{"::_<newfilename"} */ | |
701 | char smallbuf[256], smallbuf2[256]; | |
702 | char *tmpbuf, *tmpbuf2; | |
8a5ee598 | 703 | GV **gvp, *gv2; |
e66cf94c RGS |
704 | STRLEN tmplen2 = strlen(s); |
705 | if (tmplen + 3 < sizeof smallbuf) | |
706 | tmpbuf = smallbuf; | |
707 | else | |
708 | Newx(tmpbuf, tmplen + 3, char); | |
709 | if (tmplen2 + 3 < sizeof smallbuf2) | |
710 | tmpbuf2 = smallbuf2; | |
711 | else | |
712 | Newx(tmpbuf2, tmplen2 + 3, char); | |
713 | tmpbuf[0] = tmpbuf2[0] = '_'; | |
714 | tmpbuf[1] = tmpbuf2[1] = '<'; | |
715 | memcpy(tmpbuf + 2, cf, ++tmplen); | |
716 | memcpy(tmpbuf2 + 2, s, ++tmplen2); | |
717 | ++tmplen; ++tmplen2; | |
8a5ee598 RGS |
718 | gvp = (GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, FALSE); |
719 | if (gvp) { | |
720 | gv2 = *(GV**)hv_fetch(PL_defstash, tmpbuf2, tmplen2, TRUE); | |
721 | if (!isGV(gv2)) | |
722 | gv_init(gv2, PL_defstash, tmpbuf2, tmplen2, FALSE); | |
723 | /* adjust ${"::_<newfilename"} to store the new file name */ | |
724 | GvSV(gv2) = newSVpvn(tmpbuf2 + 2, tmplen2 - 2); | |
725 | GvHV(gv2) = (HV*)SvREFCNT_inc(GvHV(*gvp)); | |
726 | GvAV(gv2) = (AV*)SvREFCNT_inc(GvAV(*gvp)); | |
727 | } | |
e66cf94c RGS |
728 | if (tmpbuf != smallbuf) Safefree(tmpbuf); |
729 | if (tmpbuf2 != smallbuf2) Safefree(tmpbuf2); | |
730 | } | |
8a5ee598 | 731 | #endif |
05ec9bb3 | 732 | CopFILE_free(PL_curcop); |
57843af0 | 733 | CopFILE_set(PL_curcop, s); |
f4dd75d9 | 734 | } |
463ee0b2 | 735 | *t = ch; |
57843af0 | 736 | CopLINE_set(PL_curcop, atoi(n)-1); |
463ee0b2 LW |
737 | } |
738 | ||
ffb4593c NT |
739 | /* |
740 | * S_skipspace | |
741 | * Called to gobble the appropriate amount and type of whitespace. | |
742 | * Skips comments as well. | |
743 | */ | |
744 | ||
76e3520e | 745 | STATIC char * |
cea2e8a9 | 746 | S_skipspace(pTHX_ register char *s) |
a687059c | 747 | { |
97aff369 | 748 | dVAR; |
3280af22 | 749 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
bf4acbe4 | 750 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
463ee0b2 LW |
751 | s++; |
752 | return s; | |
753 | } | |
754 | for (;;) { | |
fd049845 | 755 | STRLEN prevlen; |
09bef843 | 756 | SSize_t oldprevlen, oldoldprevlen; |
9c5ffd7c | 757 | SSize_t oldloplen = 0, oldunilen = 0; |
60e6418e GS |
758 | while (s < PL_bufend && isSPACE(*s)) { |
759 | if (*s++ == '\n' && PL_in_eval && !PL_rsfp) | |
760 | incline(s); | |
761 | } | |
ffb4593c NT |
762 | |
763 | /* comment */ | |
3280af22 NIS |
764 | if (s < PL_bufend && *s == '#') { |
765 | while (s < PL_bufend && *s != '\n') | |
463ee0b2 | 766 | s++; |
60e6418e | 767 | if (s < PL_bufend) { |
463ee0b2 | 768 | s++; |
60e6418e GS |
769 | if (PL_in_eval && !PL_rsfp) { |
770 | incline(s); | |
771 | continue; | |
772 | } | |
773 | } | |
463ee0b2 | 774 | } |
ffb4593c NT |
775 | |
776 | /* only continue to recharge the buffer if we're at the end | |
777 | * of the buffer, we're not reading from a source filter, and | |
778 | * we're in normal lexing mode | |
779 | */ | |
09bef843 SB |
780 | if (s < PL_bufend || !PL_rsfp || PL_sublex_info.sub_inwhat || |
781 | PL_lex_state == LEX_FORMLINE) | |
463ee0b2 | 782 | return s; |
ffb4593c NT |
783 | |
784 | /* try to recharge the buffer */ | |
9cbb5ea2 GS |
785 | if ((s = filter_gets(PL_linestr, PL_rsfp, |
786 | (prevlen = SvCUR(PL_linestr)))) == Nullch) | |
787 | { | |
788 | /* end of file. Add on the -p or -n magic */ | |
01a19ab0 NC |
789 | if (PL_minus_p) { |
790 | sv_setpv(PL_linestr, | |
791 | ";}continue{print or die qq(-p destination: $!\\n);}"); | |
3280af22 | 792 | PL_minus_n = PL_minus_p = 0; |
a0d0e21e | 793 | } |
01a19ab0 NC |
794 | else if (PL_minus_n) { |
795 | sv_setpvn(PL_linestr, ";}", 2); | |
796 | PL_minus_n = 0; | |
797 | } | |
a0d0e21e | 798 | else |
4147a61b | 799 | sv_setpvn(PL_linestr,";", 1); |
ffb4593c NT |
800 | |
801 | /* reset variables for next time we lex */ | |
9cbb5ea2 GS |
802 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart |
803 | = SvPVX(PL_linestr); | |
3280af22 | 804 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
207e3d1a | 805 | PL_last_lop = PL_last_uni = Nullch; |
ffb4593c NT |
806 | |
807 | /* Close the filehandle. Could be from -P preprocessor, | |
808 | * STDIN, or a regular file. If we were reading code from | |
809 | * STDIN (because the commandline held no -e or filename) | |
810 | * then we don't close it, we reset it so the code can | |
811 | * read from STDIN too. | |
812 | */ | |
813 | ||
3280af22 NIS |
814 | if (PL_preprocess && !PL_in_eval) |
815 | (void)PerlProc_pclose(PL_rsfp); | |
816 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) | |
817 | PerlIO_clearerr(PL_rsfp); | |
8990e307 | 818 | else |
3280af22 NIS |
819 | (void)PerlIO_close(PL_rsfp); |
820 | PL_rsfp = Nullfp; | |
463ee0b2 LW |
821 | return s; |
822 | } | |
ffb4593c NT |
823 | |
824 | /* not at end of file, so we only read another line */ | |
09bef843 SB |
825 | /* make corresponding updates to old pointers, for yyerror() */ |
826 | oldprevlen = PL_oldbufptr - PL_bufend; | |
827 | oldoldprevlen = PL_oldoldbufptr - PL_bufend; | |
828 | if (PL_last_uni) | |
829 | oldunilen = PL_last_uni - PL_bufend; | |
830 | if (PL_last_lop) | |
831 | oldloplen = PL_last_lop - PL_bufend; | |
3280af22 NIS |
832 | PL_linestart = PL_bufptr = s + prevlen; |
833 | PL_bufend = s + SvCUR(PL_linestr); | |
834 | s = PL_bufptr; | |
09bef843 SB |
835 | PL_oldbufptr = s + oldprevlen; |
836 | PL_oldoldbufptr = s + oldoldprevlen; | |
837 | if (PL_last_uni) | |
838 | PL_last_uni = s + oldunilen; | |
839 | if (PL_last_lop) | |
840 | PL_last_lop = s + oldloplen; | |
a0d0e21e | 841 | incline(s); |
ffb4593c NT |
842 | |
843 | /* debugger active and we're not compiling the debugger code, | |
844 | * so store the line into the debugger's array of lines | |
845 | */ | |
3280af22 | 846 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
9d4ba2ae | 847 | SV * const sv = NEWSV(85,0); |
8990e307 LW |
848 | |
849 | sv_upgrade(sv, SVt_PVMG); | |
3280af22 | 850 | sv_setpvn(sv,PL_bufptr,PL_bufend-PL_bufptr); |
0ac0412a | 851 | (void)SvIOK_on(sv); |
45977657 | 852 | SvIV_set(sv, 0); |
36c7798d | 853 | av_store(CopFILEAVx(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
8990e307 | 854 | } |
463ee0b2 | 855 | } |
a687059c | 856 | } |
378cc40b | 857 | |
ffb4593c NT |
858 | /* |
859 | * S_check_uni | |
860 | * Check the unary operators to ensure there's no ambiguity in how they're | |
861 | * used. An ambiguous piece of code would be: | |
862 | * rand + 5 | |
863 | * This doesn't mean rand() + 5. Because rand() is a unary operator, | |
864 | * the +5 is its argument. | |
865 | */ | |
866 | ||
76e3520e | 867 | STATIC void |
cea2e8a9 | 868 | S_check_uni(pTHX) |
ba106d47 | 869 | { |
97aff369 | 870 | dVAR; |
2f3197b3 | 871 | char *s; |
a0d0e21e | 872 | char *t; |
2f3197b3 | 873 | |
3280af22 | 874 | if (PL_oldoldbufptr != PL_last_uni) |
2f3197b3 | 875 | return; |
3280af22 NIS |
876 | while (isSPACE(*PL_last_uni)) |
877 | PL_last_uni++; | |
7e2040f0 | 878 | for (s = PL_last_uni; isALNUM_lazy_if(s,UTF) || *s == '-'; s++) ; |
3280af22 | 879 | if ((t = strchr(s, '(')) && t < PL_bufptr) |
a0d0e21e | 880 | return; |
6136c704 AL |
881 | |
882 | /* XXX Things like this are just so nasty. We shouldn't be modifying | |
883 | source code, even if we realquick set it back. */ | |
0453d815 | 884 | if (ckWARN_d(WARN_AMBIGUOUS)){ |
9d4ba2ae | 885 | const char ch = *s; |
0453d815 | 886 | *s = '\0'; |
9014280d | 887 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
2d5ccbba | 888 | "Warning: Use of \"%s\" without parentheses is ambiguous", |
0453d815 PM |
889 | PL_last_uni); |
890 | *s = ch; | |
891 | } | |
2f3197b3 LW |
892 | } |
893 | ||
ffb4593c NT |
894 | /* |
895 | * LOP : macro to build a list operator. Its behaviour has been replaced | |
896 | * with a subroutine, S_lop() for which LOP is just another name. | |
897 | */ | |
898 | ||
a0d0e21e LW |
899 | #define LOP(f,x) return lop(f,x,s) |
900 | ||
ffb4593c NT |
901 | /* |
902 | * S_lop | |
903 | * Build a list operator (or something that might be one). The rules: | |
904 | * - if we have a next token, then it's a list operator [why?] | |
905 | * - if the next thing is an opening paren, then it's a function | |
906 | * - else it's a list operator | |
907 | */ | |
908 | ||
76e3520e | 909 | STATIC I32 |
a0be28da | 910 | S_lop(pTHX_ I32 f, int x, char *s) |
ffed7fef | 911 | { |
97aff369 | 912 | dVAR; |
79072805 | 913 | yylval.ival = f; |
35c8bce7 | 914 | CLINE; |
3280af22 NIS |
915 | PL_expect = x; |
916 | PL_bufptr = s; | |
917 | PL_last_lop = PL_oldbufptr; | |
eb160463 | 918 | PL_last_lop_op = (OPCODE)f; |
3280af22 | 919 | if (PL_nexttoke) |
bbf60fe6 | 920 | return REPORT(LSTOP); |
79072805 | 921 | if (*s == '(') |
bbf60fe6 | 922 | return REPORT(FUNC); |
79072805 LW |
923 | s = skipspace(s); |
924 | if (*s == '(') | |
bbf60fe6 | 925 | return REPORT(FUNC); |
79072805 | 926 | else |
bbf60fe6 | 927 | return REPORT(LSTOP); |
79072805 LW |
928 | } |
929 | ||
ffb4593c NT |
930 | /* |
931 | * S_force_next | |
9cbb5ea2 | 932 | * When the lexer realizes it knows the next token (for instance, |
ffb4593c | 933 | * it is reordering tokens for the parser) then it can call S_force_next |
9cbb5ea2 GS |
934 | * to know what token to return the next time the lexer is called. Caller |
935 | * will need to set PL_nextval[], and possibly PL_expect to ensure the lexer | |
936 | * handles the token correctly. | |
ffb4593c NT |
937 | */ |
938 | ||
4e553d73 | 939 | STATIC void |
cea2e8a9 | 940 | S_force_next(pTHX_ I32 type) |
79072805 | 941 | { |
97aff369 | 942 | dVAR; |
3280af22 NIS |
943 | PL_nexttype[PL_nexttoke] = type; |
944 | PL_nexttoke++; | |
945 | if (PL_lex_state != LEX_KNOWNEXT) { | |
946 | PL_lex_defer = PL_lex_state; | |
947 | PL_lex_expect = PL_expect; | |
948 | PL_lex_state = LEX_KNOWNEXT; | |
79072805 LW |
949 | } |
950 | } | |
951 | ||
d0a148a6 NC |
952 | STATIC SV * |
953 | S_newSV_maybe_utf8(pTHX_ const char *start, STRLEN len) | |
954 | { | |
97aff369 | 955 | dVAR; |
9d4ba2ae | 956 | SV * const sv = newSVpvn(start,len); |
bfed75c6 | 957 | if (UTF && !IN_BYTES && is_utf8_string((const U8*)start, len)) |
d0a148a6 NC |
958 | SvUTF8_on(sv); |
959 | return sv; | |
960 | } | |
961 | ||
ffb4593c NT |
962 | /* |
963 | * S_force_word | |
964 | * When the lexer knows the next thing is a word (for instance, it has | |
965 | * just seen -> and it knows that the next char is a word char, then | |
966 | * it calls S_force_word to stick the next word into the PL_next lookahead. | |
967 | * | |
968 | * Arguments: | |
b1b65b59 | 969 | * char *start : buffer position (must be within PL_linestr) |
ffb4593c NT |
970 | * int token : PL_next will be this type of bare word (e.g., METHOD,WORD) |
971 | * int check_keyword : if true, Perl checks to make sure the word isn't | |
972 | * a keyword (do this if the word is a label, e.g. goto FOO) | |
973 | * int allow_pack : if true, : characters will also be allowed (require, | |
974 | * use, etc. do this) | |
9cbb5ea2 | 975 | * int allow_initial_tick : used by the "sub" lexer only. |
ffb4593c NT |
976 | */ |
977 | ||
76e3520e | 978 | STATIC char * |
cea2e8a9 | 979 | S_force_word(pTHX_ register char *start, int token, int check_keyword, int allow_pack, int allow_initial_tick) |
79072805 | 980 | { |
97aff369 | 981 | dVAR; |
463ee0b2 LW |
982 | register char *s; |
983 | STRLEN len; | |
4e553d73 | 984 | |
463ee0b2 LW |
985 | start = skipspace(start); |
986 | s = start; | |
7e2040f0 | 987 | if (isIDFIRST_lazy_if(s,UTF) || |
a0d0e21e | 988 | (allow_pack && *s == ':') || |
15f0808c | 989 | (allow_initial_tick && *s == '\'') ) |
a0d0e21e | 990 | { |
3280af22 NIS |
991 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, allow_pack, &len); |
992 | if (check_keyword && keyword(PL_tokenbuf, len)) | |
463ee0b2 LW |
993 | return start; |
994 | if (token == METHOD) { | |
995 | s = skipspace(s); | |
996 | if (*s == '(') | |
3280af22 | 997 | PL_expect = XTERM; |
463ee0b2 | 998 | else { |
3280af22 | 999 | PL_expect = XOPERATOR; |
463ee0b2 | 1000 | } |
79072805 | 1001 | } |
d0a148a6 NC |
1002 | PL_nextval[PL_nexttoke].opval |
1003 | = (OP*)newSVOP(OP_CONST,0, | |
1004 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
3280af22 | 1005 | PL_nextval[PL_nexttoke].opval->op_private |= OPpCONST_BARE; |
79072805 LW |
1006 | force_next(token); |
1007 | } | |
1008 | return s; | |
1009 | } | |
1010 | ||
ffb4593c NT |
1011 | /* |
1012 | * S_force_ident | |
9cbb5ea2 | 1013 | * Called when the lexer wants $foo *foo &foo etc, but the program |
ffb4593c NT |
1014 | * text only contains the "foo" portion. The first argument is a pointer |
1015 | * to the "foo", and the second argument is the type symbol to prefix. | |
1016 | * Forces the next token to be a "WORD". | |
9cbb5ea2 | 1017 | * Creates the symbol if it didn't already exist (via gv_fetchpv()). |
ffb4593c NT |
1018 | */ |
1019 | ||
76e3520e | 1020 | STATIC void |
bfed75c6 | 1021 | S_force_ident(pTHX_ register const char *s, int kind) |
79072805 | 1022 | { |
97aff369 | 1023 | dVAR; |
79072805 | 1024 | if (s && *s) { |
bfed75c6 | 1025 | OP* const o = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0)); |
3280af22 | 1026 | PL_nextval[PL_nexttoke].opval = o; |
79072805 | 1027 | force_next(WORD); |
748a9306 | 1028 | if (kind) { |
11343788 | 1029 | o->op_private = OPpCONST_ENTERED; |
55497cff | 1030 | /* XXX see note in pp_entereval() for why we forgo typo |
1031 | warnings if the symbol must be introduced in an eval. | |
1032 | GSAR 96-10-12 */ | |
f776e3cd | 1033 | gv_fetchpv(s, PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD, |
a0d0e21e LW |
1034 | kind == '$' ? SVt_PV : |
1035 | kind == '@' ? SVt_PVAV : | |
1036 | kind == '%' ? SVt_PVHV : | |
1037 | SVt_PVGV | |
1038 | ); | |
748a9306 | 1039 | } |
79072805 LW |
1040 | } |
1041 | } | |
1042 | ||
1571675a GS |
1043 | NV |
1044 | Perl_str_to_version(pTHX_ SV *sv) | |
1045 | { | |
1046 | NV retval = 0.0; | |
1047 | NV nshift = 1.0; | |
1048 | STRLEN len; | |
cfd0369c | 1049 | const char *start = SvPV_const(sv,len); |
9d4ba2ae | 1050 | const char * const end = start + len; |
504618e9 | 1051 | const bool utf = SvUTF8(sv) ? TRUE : FALSE; |
1571675a | 1052 | while (start < end) { |
ba210ebe | 1053 | STRLEN skip; |
1571675a GS |
1054 | UV n; |
1055 | if (utf) | |
9041c2e3 | 1056 | n = utf8n_to_uvchr((U8*)start, len, &skip, 0); |
1571675a GS |
1057 | else { |
1058 | n = *(U8*)start; | |
1059 | skip = 1; | |
1060 | } | |
1061 | retval += ((NV)n)/nshift; | |
1062 | start += skip; | |
1063 | nshift *= 1000; | |
1064 | } | |
1065 | return retval; | |
1066 | } | |
1067 | ||
4e553d73 | 1068 | /* |
ffb4593c NT |
1069 | * S_force_version |
1070 | * Forces the next token to be a version number. | |
e759cc13 RGS |
1071 | * If the next token appears to be an invalid version number, (e.g. "v2b"), |
1072 | * and if "guessing" is TRUE, then no new token is created (and the caller | |
1073 | * must use an alternative parsing method). | |
ffb4593c NT |
1074 | */ |
1075 | ||
76e3520e | 1076 | STATIC char * |
e759cc13 | 1077 | S_force_version(pTHX_ char *s, int guessing) |
89bfa8cd | 1078 | { |
97aff369 | 1079 | dVAR; |
89bfa8cd | 1080 | OP *version = Nullop; |
44dcb63b | 1081 | char *d; |
89bfa8cd | 1082 | |
1083 | s = skipspace(s); | |
1084 | ||
44dcb63b | 1085 | d = s; |
dd629d5b | 1086 | if (*d == 'v') |
44dcb63b | 1087 | d++; |
44dcb63b | 1088 | if (isDIGIT(*d)) { |
e759cc13 RGS |
1089 | while (isDIGIT(*d) || *d == '_' || *d == '.') |
1090 | d++; | |
9f3d182e | 1091 | if (*d == ';' || isSPACE(*d) || *d == '}' || !*d) { |
dd629d5b | 1092 | SV *ver; |
b73d6f50 | 1093 | s = scan_num(s, &yylval); |
89bfa8cd | 1094 | version = yylval.opval; |
dd629d5b GS |
1095 | ver = cSVOPx(version)->op_sv; |
1096 | if (SvPOK(ver) && !SvNIOK(ver)) { | |
862a34c6 | 1097 | SvUPGRADE(ver, SVt_PVNV); |
9d6ce603 | 1098 | SvNV_set(ver, str_to_version(ver)); |
1571675a | 1099 | SvNOK_on(ver); /* hint that it is a version */ |
44dcb63b | 1100 | } |
89bfa8cd | 1101 | } |
e759cc13 RGS |
1102 | else if (guessing) |
1103 | return s; | |
89bfa8cd | 1104 | } |
1105 | ||
1106 | /* NOTE: The parser sees the package name and the VERSION swapped */ | |
3280af22 | 1107 | PL_nextval[PL_nexttoke].opval = version; |
4e553d73 | 1108 | force_next(WORD); |
89bfa8cd | 1109 | |
e759cc13 | 1110 | return s; |
89bfa8cd | 1111 | } |
1112 | ||
ffb4593c NT |
1113 | /* |
1114 | * S_tokeq | |
1115 | * Tokenize a quoted string passed in as an SV. It finds the next | |
1116 | * chunk, up to end of string or a backslash. It may make a new | |
1117 | * SV containing that chunk (if HINT_NEW_STRING is on). It also | |
1118 | * turns \\ into \. | |
1119 | */ | |
1120 | ||
76e3520e | 1121 | STATIC SV * |
cea2e8a9 | 1122 | S_tokeq(pTHX_ SV *sv) |
79072805 | 1123 | { |
97aff369 | 1124 | dVAR; |
79072805 LW |
1125 | register char *s; |
1126 | register char *send; | |
1127 | register char *d; | |
b3ac6de7 IZ |
1128 | STRLEN len = 0; |
1129 | SV *pv = sv; | |
79072805 LW |
1130 | |
1131 | if (!SvLEN(sv)) | |
b3ac6de7 | 1132 | goto finish; |
79072805 | 1133 | |
a0d0e21e | 1134 | s = SvPV_force(sv, len); |
21a311ee | 1135 | if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) |
b3ac6de7 | 1136 | goto finish; |
463ee0b2 | 1137 | send = s + len; |
79072805 LW |
1138 | while (s < send && *s != '\\') |
1139 | s++; | |
1140 | if (s == send) | |
b3ac6de7 | 1141 | goto finish; |
79072805 | 1142 | d = s; |
be4731d2 | 1143 | if ( PL_hints & HINT_NEW_STRING ) { |
95a20fc0 | 1144 | pv = sv_2mortal(newSVpvn(SvPVX_const(pv), len)); |
be4731d2 NIS |
1145 | if (SvUTF8(sv)) |
1146 | SvUTF8_on(pv); | |
1147 | } | |
79072805 LW |
1148 | while (s < send) { |
1149 | if (*s == '\\') { | |
a0d0e21e | 1150 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
1151 | s++; /* all that, just for this */ |
1152 | } | |
1153 | *d++ = *s++; | |
1154 | } | |
1155 | *d = '\0'; | |
95a20fc0 | 1156 | SvCUR_set(sv, d - SvPVX_const(sv)); |
b3ac6de7 | 1157 | finish: |
3280af22 | 1158 | if ( PL_hints & HINT_NEW_STRING ) |
b3ac6de7 | 1159 | return new_constant(NULL, 0, "q", sv, pv, "q"); |
79072805 LW |
1160 | return sv; |
1161 | } | |
1162 | ||
ffb4593c NT |
1163 | /* |
1164 | * Now come three functions related to double-quote context, | |
1165 | * S_sublex_start, S_sublex_push, and S_sublex_done. They're used when | |
1166 | * converting things like "\u\Lgnat" into ucfirst(lc("gnat")). They | |
1167 | * interact with PL_lex_state, and create fake ( ... ) argument lists | |
1168 | * to handle functions and concatenation. | |
1169 | * They assume that whoever calls them will be setting up a fake | |
1170 | * join call, because each subthing puts a ',' after it. This lets | |
1171 | * "lower \luPpEr" | |
1172 | * become | |
1173 | * join($, , 'lower ', lcfirst( 'uPpEr', ) ,) | |
1174 | * | |
1175 | * (I'm not sure whether the spurious commas at the end of lcfirst's | |
1176 | * arguments and join's arguments are created or not). | |
1177 | */ | |
1178 | ||
1179 | /* | |
1180 | * S_sublex_start | |
1181 | * Assumes that yylval.ival is the op we're creating (e.g. OP_LCFIRST). | |
1182 | * | |
1183 | * Pattern matching will set PL_lex_op to the pattern-matching op to | |
1184 | * make (we return THING if yylval.ival is OP_NULL, PMFUNC otherwise). | |
1185 | * | |
1186 | * OP_CONST and OP_READLINE are easy--just make the new op and return. | |
1187 | * | |
1188 | * Everything else becomes a FUNC. | |
1189 | * | |
1190 | * Sets PL_lex_state to LEX_INTERPPUSH unless (ival was OP_NULL or we | |
1191 | * had an OP_CONST or OP_READLINE). This just sets us up for a | |
1192 | * call to S_sublex_push(). | |
1193 | */ | |
1194 | ||
76e3520e | 1195 | STATIC I32 |
cea2e8a9 | 1196 | S_sublex_start(pTHX) |
79072805 | 1197 | { |
97aff369 | 1198 | dVAR; |
0d46e09a | 1199 | register const I32 op_type = yylval.ival; |
79072805 LW |
1200 | |
1201 | if (op_type == OP_NULL) { | |
3280af22 NIS |
1202 | yylval.opval = PL_lex_op; |
1203 | PL_lex_op = Nullop; | |
79072805 LW |
1204 | return THING; |
1205 | } | |
1206 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
3280af22 | 1207 | SV *sv = tokeq(PL_lex_stuff); |
b3ac6de7 IZ |
1208 | |
1209 | if (SvTYPE(sv) == SVt_PVIV) { | |
1210 | /* Overloaded constants, nothing fancy: Convert to SVt_PV: */ | |
1211 | STRLEN len; | |
cfd0369c | 1212 | const char *p = SvPV_const(sv, len); |
f54cb97a | 1213 | SV * const nsv = newSVpvn(p, len); |
01ec43d0 GS |
1214 | if (SvUTF8(sv)) |
1215 | SvUTF8_on(nsv); | |
b3ac6de7 IZ |
1216 | SvREFCNT_dec(sv); |
1217 | sv = nsv; | |
4e553d73 | 1218 | } |
b3ac6de7 | 1219 | yylval.opval = (OP*)newSVOP(op_type, 0, sv); |
3280af22 | 1220 | PL_lex_stuff = Nullsv; |
6f33ba73 RGS |
1221 | /* Allow <FH> // "foo" */ |
1222 | if (op_type == OP_READLINE) | |
1223 | PL_expect = XTERMORDORDOR; | |
79072805 LW |
1224 | return THING; |
1225 | } | |
1226 | ||
3280af22 NIS |
1227 | PL_sublex_info.super_state = PL_lex_state; |
1228 | PL_sublex_info.sub_inwhat = op_type; | |
1229 | PL_sublex_info.sub_op = PL_lex_op; | |
1230 | PL_lex_state = LEX_INTERPPUSH; | |
55497cff | 1231 | |
3280af22 NIS |
1232 | PL_expect = XTERM; |
1233 | if (PL_lex_op) { | |
1234 | yylval.opval = PL_lex_op; | |
1235 | PL_lex_op = Nullop; | |
55497cff | 1236 | return PMFUNC; |
1237 | } | |
1238 | else | |
1239 | return FUNC; | |
1240 | } | |
1241 | ||
ffb4593c NT |
1242 | /* |
1243 | * S_sublex_push | |
1244 | * Create a new scope to save the lexing state. The scope will be | |
1245 | * ended in S_sublex_done. Returns a '(', starting the function arguments | |
1246 | * to the uc, lc, etc. found before. | |
1247 | * Sets PL_lex_state to LEX_INTERPCONCAT. | |
1248 | */ | |
1249 | ||
76e3520e | 1250 | STATIC I32 |
cea2e8a9 | 1251 | S_sublex_push(pTHX) |
55497cff | 1252 | { |
27da23d5 | 1253 | dVAR; |
f46d017c | 1254 | ENTER; |
55497cff | 1255 | |
3280af22 NIS |
1256 | PL_lex_state = PL_sublex_info.super_state; |
1257 | SAVEI32(PL_lex_dojoin); | |
1258 | SAVEI32(PL_lex_brackets); | |
3280af22 NIS |
1259 | SAVEI32(PL_lex_casemods); |
1260 | SAVEI32(PL_lex_starts); | |
1261 | SAVEI32(PL_lex_state); | |
7766f137 | 1262 | SAVEVPTR(PL_lex_inpat); |
3280af22 | 1263 | SAVEI32(PL_lex_inwhat); |
57843af0 | 1264 | SAVECOPLINE(PL_curcop); |
3280af22 | 1265 | SAVEPPTR(PL_bufptr); |
8452ff4b | 1266 | SAVEPPTR(PL_bufend); |
3280af22 NIS |
1267 | SAVEPPTR(PL_oldbufptr); |
1268 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
1269 | SAVEPPTR(PL_last_lop); |
1270 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
1271 | SAVEPPTR(PL_linestart); |
1272 | SAVESPTR(PL_linestr); | |
8edd5f42 RGS |
1273 | SAVEGENERICPV(PL_lex_brackstack); |
1274 | SAVEGENERICPV(PL_lex_casestack); | |
3280af22 NIS |
1275 | |
1276 | PL_linestr = PL_lex_stuff; | |
1277 | PL_lex_stuff = Nullsv; | |
1278 | ||
9cbb5ea2 GS |
1279 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart |
1280 | = SvPVX(PL_linestr); | |
3280af22 | 1281 | PL_bufend += SvCUR(PL_linestr); |
207e3d1a | 1282 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 NIS |
1283 | SAVEFREESV(PL_linestr); |
1284 | ||
1285 | PL_lex_dojoin = FALSE; | |
1286 | PL_lex_brackets = 0; | |
a02a5408 JC |
1287 | Newx(PL_lex_brackstack, 120, char); |
1288 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
1289 | PL_lex_casemods = 0; |
1290 | *PL_lex_casestack = '\0'; | |
1291 | PL_lex_starts = 0; | |
1292 | PL_lex_state = LEX_INTERPCONCAT; | |
eb160463 | 1293 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 NIS |
1294 | |
1295 | PL_lex_inwhat = PL_sublex_info.sub_inwhat; | |
1296 | if (PL_lex_inwhat == OP_MATCH || PL_lex_inwhat == OP_QR || PL_lex_inwhat == OP_SUBST) | |
1297 | PL_lex_inpat = PL_sublex_info.sub_op; | |
79072805 | 1298 | else |
3280af22 | 1299 | PL_lex_inpat = Nullop; |
79072805 | 1300 | |
55497cff | 1301 | return '('; |
79072805 LW |
1302 | } |
1303 | ||
ffb4593c NT |
1304 | /* |
1305 | * S_sublex_done | |
1306 | * Restores lexer state after a S_sublex_push. | |
1307 | */ | |
1308 | ||
76e3520e | 1309 | STATIC I32 |
cea2e8a9 | 1310 | S_sublex_done(pTHX) |
79072805 | 1311 | { |
27da23d5 | 1312 | dVAR; |
3280af22 | 1313 | if (!PL_lex_starts++) { |
396482e1 | 1314 | SV * const sv = newSVpvs(""); |
9aa983d2 JH |
1315 | if (SvUTF8(PL_linestr)) |
1316 | SvUTF8_on(sv); | |
3280af22 | 1317 | PL_expect = XOPERATOR; |
9aa983d2 | 1318 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
79072805 LW |
1319 | return THING; |
1320 | } | |
1321 | ||
3280af22 NIS |
1322 | if (PL_lex_casemods) { /* oops, we've got some unbalanced parens */ |
1323 | PL_lex_state = LEX_INTERPCASEMOD; | |
cea2e8a9 | 1324 | return yylex(); |
79072805 LW |
1325 | } |
1326 | ||
ffb4593c | 1327 | /* Is there a right-hand side to take care of? (s//RHS/ or tr//RHS/) */ |
3280af22 NIS |
1328 | if (PL_lex_repl && (PL_lex_inwhat == OP_SUBST || PL_lex_inwhat == OP_TRANS)) { |
1329 | PL_linestr = PL_lex_repl; | |
1330 | PL_lex_inpat = 0; | |
1331 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
1332 | PL_bufend += SvCUR(PL_linestr); | |
207e3d1a | 1333 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 NIS |
1334 | SAVEFREESV(PL_linestr); |
1335 | PL_lex_dojoin = FALSE; | |
1336 | PL_lex_brackets = 0; | |
3280af22 NIS |
1337 | PL_lex_casemods = 0; |
1338 | *PL_lex_casestack = '\0'; | |
1339 | PL_lex_starts = 0; | |
25da4f38 | 1340 | if (SvEVALED(PL_lex_repl)) { |
3280af22 NIS |
1341 | PL_lex_state = LEX_INTERPNORMAL; |
1342 | PL_lex_starts++; | |
e9fa98b2 HS |
1343 | /* we don't clear PL_lex_repl here, so that we can check later |
1344 | whether this is an evalled subst; that means we rely on the | |
1345 | logic to ensure sublex_done() is called again only via the | |
1346 | branch (in yylex()) that clears PL_lex_repl, else we'll loop */ | |
79072805 | 1347 | } |
e9fa98b2 | 1348 | else { |
3280af22 | 1349 | PL_lex_state = LEX_INTERPCONCAT; |
e9fa98b2 HS |
1350 | PL_lex_repl = Nullsv; |
1351 | } | |
79072805 | 1352 | return ','; |
ffed7fef LW |
1353 | } |
1354 | else { | |
f46d017c | 1355 | LEAVE; |
3280af22 NIS |
1356 | PL_bufend = SvPVX(PL_linestr); |
1357 | PL_bufend += SvCUR(PL_linestr); | |
1358 | PL_expect = XOPERATOR; | |
09bef843 | 1359 | PL_sublex_info.sub_inwhat = 0; |
79072805 | 1360 | return ')'; |
ffed7fef LW |
1361 | } |
1362 | } | |
1363 | ||
02aa26ce NT |
1364 | /* |
1365 | scan_const | |
1366 | ||
1367 | Extracts a pattern, double-quoted string, or transliteration. This | |
1368 | is terrifying code. | |
1369 | ||
3280af22 NIS |
1370 | It looks at lex_inwhat and PL_lex_inpat to find out whether it's |
1371 | processing a pattern (PL_lex_inpat is true), a transliteration | |
02aa26ce NT |
1372 | (lex_inwhat & OP_TRANS is true), or a double-quoted string. |
1373 | ||
9b599b2a GS |
1374 | Returns a pointer to the character scanned up to. Iff this is |
1375 | advanced from the start pointer supplied (ie if anything was | |
1376 | successfully parsed), will leave an OP for the substring scanned | |
1377 | in yylval. Caller must intuit reason for not parsing further | |
1378 | by looking at the next characters herself. | |
1379 | ||
02aa26ce NT |
1380 | In patterns: |
1381 | backslashes: | |
1382 | double-quoted style: \r and \n | |
1383 | regexp special ones: \D \s | |
1384 | constants: \x3 | |
1385 | backrefs: \1 (deprecated in substitution replacements) | |
1386 | case and quoting: \U \Q \E | |
1387 | stops on @ and $, but not for $ as tail anchor | |
1388 | ||
1389 | In transliterations: | |
1390 | characters are VERY literal, except for - not at the start or end | |
1391 | of the string, which indicates a range. scan_const expands the | |
1392 | range to the full set of intermediate characters. | |
1393 | ||
1394 | In double-quoted strings: | |
1395 | backslashes: | |
1396 | double-quoted style: \r and \n | |
1397 | constants: \x3 | |
1398 | backrefs: \1 (deprecated) | |
1399 | case and quoting: \U \Q \E | |
1400 | stops on @ and $ | |
1401 | ||
1402 | scan_const does *not* construct ops to handle interpolated strings. | |
1403 | It stops processing as soon as it finds an embedded $ or @ variable | |
1404 | and leaves it to the caller to work out what's going on. | |
1405 | ||
da6eedaa | 1406 | @ in pattern could be: @foo, @{foo}, @$foo, @'foo, @::foo. |
02aa26ce NT |
1407 | |
1408 | $ in pattern could be $foo or could be tail anchor. Assumption: | |
1409 | it's a tail anchor if $ is the last thing in the string, or if it's | |
1410 | followed by one of ")| \n\t" | |
1411 | ||
1412 | \1 (backreferences) are turned into $1 | |
1413 | ||
1414 | The structure of the code is | |
1415 | while (there's a character to process) { | |
1416 | handle transliteration ranges | |
1417 | skip regexp comments | |
1418 | skip # initiated comments in //x patterns | |
1419 | check for embedded @foo | |
1420 | check for embedded scalars | |
1421 | if (backslash) { | |
1422 | leave intact backslashes from leave (below) | |
1423 | deprecate \1 in strings and sub replacements | |
1424 | handle string-changing backslashes \l \U \Q \E, etc. | |
1425 | switch (what was escaped) { | |
1426 | handle - in a transliteration (becomes a literal -) | |
1427 | handle \132 octal characters | |
1428 | handle 0x15 hex characters | |
1429 | handle \cV (control V) | |
1430 | handle printf backslashes (\f, \r, \n, etc) | |
1431 | } (end switch) | |
1432 | } (end if backslash) | |
1433 | } (end while character to read) | |
4e553d73 | 1434 | |
02aa26ce NT |
1435 | */ |
1436 | ||
76e3520e | 1437 | STATIC char * |
cea2e8a9 | 1438 | S_scan_const(pTHX_ char *start) |
79072805 | 1439 | { |
97aff369 | 1440 | dVAR; |
3280af22 | 1441 | register char *send = PL_bufend; /* end of the constant */ |
02aa26ce NT |
1442 | SV *sv = NEWSV(93, send - start); /* sv for the constant */ |
1443 | register char *s = start; /* start of the constant */ | |
1444 | register char *d = SvPVX(sv); /* destination for copies */ | |
1445 | bool dorange = FALSE; /* are we in a translit range? */ | |
c2e66d9e | 1446 | bool didrange = FALSE; /* did we just finish a range? */ |
2b9d42f0 NIS |
1447 | I32 has_utf8 = FALSE; /* Output constant is UTF8 */ |
1448 | I32 this_utf8 = UTF; /* The source string is assumed to be UTF8 */ | |
012bcf8d | 1449 | UV uv; |
4c3a8340 TS |
1450 | #ifdef EBCDIC |
1451 | UV literal_endpoint = 0; | |
1452 | #endif | |
012bcf8d | 1453 | |
dff6d3cd | 1454 | const char *leaveit = /* set of acceptably-backslashed characters */ |
3280af22 | 1455 | PL_lex_inpat |
b6d5fef8 | 1456 | ? "\\.^$@AGZdDwWsSbBpPXC+*?|()-nrtfeaxz0123456789[{]} \t\n\r\f\v#" |
9b599b2a | 1457 | : ""; |
79072805 | 1458 | |
2b9d42f0 NIS |
1459 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
1460 | /* If we are doing a trans and we know we want UTF8 set expectation */ | |
1461 | has_utf8 = PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF); | |
1462 | this_utf8 = PL_sublex_info.sub_op->op_private & (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
1463 | } | |
1464 | ||
1465 | ||
79072805 | 1466 | while (s < send || dorange) { |
02aa26ce | 1467 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 1468 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 1469 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 1470 | if (dorange) { |
1ba5c669 JH |
1471 | I32 i; /* current expanded character */ |
1472 | I32 min; /* first character in range */ | |
1473 | I32 max; /* last character in range */ | |
02aa26ce | 1474 | |
2b9d42f0 | 1475 | if (has_utf8) { |
9d4ba2ae | 1476 | char * const c = (char*)utf8_hop((U8*)d, -1); |
8973db79 JH |
1477 | char *e = d++; |
1478 | while (e-- > c) | |
1479 | *(e + 1) = *e; | |
25716404 | 1480 | *c = (char)UTF_TO_NATIVE(0xff); |
8973db79 JH |
1481 | /* mark the range as done, and continue */ |
1482 | dorange = FALSE; | |
1483 | didrange = TRUE; | |
1484 | continue; | |
1485 | } | |
2b9d42f0 | 1486 | |
95a20fc0 | 1487 | i = d - SvPVX_const(sv); /* remember current offset */ |
9cbb5ea2 GS |
1488 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
1489 | d = SvPVX(sv) + i; /* refresh d after realloc */ | |
02aa26ce NT |
1490 | d -= 2; /* eat the first char and the - */ |
1491 | ||
8ada0baa JH |
1492 | min = (U8)*d; /* first char in range */ |
1493 | max = (U8)d[1]; /* last char in range */ | |
1494 | ||
c2e66d9e | 1495 | if (min > max) { |
01ec43d0 | 1496 | Perl_croak(aTHX_ |
d1573ac7 | 1497 | "Invalid range \"%c-%c\" in transliteration operator", |
1ba5c669 | 1498 | (char)min, (char)max); |
c2e66d9e GS |
1499 | } |
1500 | ||
c7f1f016 | 1501 | #ifdef EBCDIC |
4c3a8340 TS |
1502 | if (literal_endpoint == 2 && |
1503 | ((isLOWER(min) && isLOWER(max)) || | |
1504 | (isUPPER(min) && isUPPER(max)))) { | |
8ada0baa JH |
1505 | if (isLOWER(min)) { |
1506 | for (i = min; i <= max; i++) | |
1507 | if (isLOWER(i)) | |
db42d148 | 1508 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1509 | } else { |
1510 | for (i = min; i <= max; i++) | |
1511 | if (isUPPER(i)) | |
db42d148 | 1512 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1513 | } |
1514 | } | |
1515 | else | |
1516 | #endif | |
1517 | for (i = min; i <= max; i++) | |
eb160463 | 1518 | *d++ = (char)i; |
02aa26ce NT |
1519 | |
1520 | /* mark the range as done, and continue */ | |
79072805 | 1521 | dorange = FALSE; |
01ec43d0 | 1522 | didrange = TRUE; |
4c3a8340 TS |
1523 | #ifdef EBCDIC |
1524 | literal_endpoint = 0; | |
1525 | #endif | |
79072805 | 1526 | continue; |
4e553d73 | 1527 | } |
02aa26ce NT |
1528 | |
1529 | /* range begins (ignore - as first or last char) */ | |
79072805 | 1530 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 1531 | if (didrange) { |
1fafa243 | 1532 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 1533 | } |
2b9d42f0 | 1534 | if (has_utf8) { |
25716404 | 1535 | *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
1536 | s++; |
1537 | continue; | |
1538 | } | |
79072805 LW |
1539 | dorange = TRUE; |
1540 | s++; | |
01ec43d0 GS |
1541 | } |
1542 | else { | |
1543 | didrange = FALSE; | |
4c3a8340 TS |
1544 | #ifdef EBCDIC |
1545 | literal_endpoint = 0; | |
1546 | #endif | |
01ec43d0 | 1547 | } |
79072805 | 1548 | } |
02aa26ce NT |
1549 | |
1550 | /* if we get here, we're not doing a transliteration */ | |
1551 | ||
0f5d15d6 IZ |
1552 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
1553 | except for the last char, which will be done separately. */ | |
3280af22 | 1554 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 | 1555 | if (s[2] == '#') { |
e994fd66 | 1556 | while (s+1 < send && *s != ')') |
db42d148 | 1557 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
155aba94 GS |
1558 | } |
1559 | else if (s[2] == '{' /* This should match regcomp.c */ | |
1560 | || ((s[2] == 'p' || s[2] == '?') && s[3] == '{')) | |
1561 | { | |
cc6b7395 | 1562 | I32 count = 1; |
0f5d15d6 | 1563 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
1564 | char c; |
1565 | ||
d9f97599 GS |
1566 | while (count && (c = *regparse)) { |
1567 | if (c == '\\' && regparse[1]) | |
1568 | regparse++; | |
4e553d73 | 1569 | else if (c == '{') |
cc6b7395 | 1570 | count++; |
4e553d73 | 1571 | else if (c == '}') |
cc6b7395 | 1572 | count--; |
d9f97599 | 1573 | regparse++; |
cc6b7395 | 1574 | } |
e994fd66 | 1575 | if (*regparse != ')') |
5bdf89e7 | 1576 | regparse--; /* Leave one char for continuation. */ |
0f5d15d6 | 1577 | while (s < regparse) |
db42d148 | 1578 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
cc6b7395 | 1579 | } |
748a9306 | 1580 | } |
02aa26ce NT |
1581 | |
1582 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
1583 | else if (*s == '#' && PL_lex_inpat && |
1584 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 | 1585 | while (s+1 < send && *s != '\n') |
db42d148 | 1586 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
748a9306 | 1587 | } |
02aa26ce | 1588 | |
5d1d4326 | 1589 | /* check for embedded arrays |
da6eedaa | 1590 | (@foo, @::foo, @'foo, @{foo}, @$foo, @+, @-) |
5d1d4326 | 1591 | */ |
7e2040f0 | 1592 | else if (*s == '@' && s[1] |
5d1d4326 | 1593 | && (isALNUM_lazy_if(s+1,UTF) || strchr(":'{$+-", s[1]))) |
79072805 | 1594 | break; |
02aa26ce NT |
1595 | |
1596 | /* check for embedded scalars. only stop if we're sure it's a | |
1597 | variable. | |
1598 | */ | |
79072805 | 1599 | else if (*s == '$') { |
3280af22 | 1600 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 1601 | break; |
6002328a | 1602 | if (s + 1 < send && !strchr("()| \r\n\t", s[1])) |
79072805 LW |
1603 | break; /* in regexp, $ might be tail anchor */ |
1604 | } | |
02aa26ce | 1605 | |
2b9d42f0 NIS |
1606 | /* End of else if chain - OP_TRANS rejoin rest */ |
1607 | ||
02aa26ce | 1608 | /* backslashes */ |
79072805 LW |
1609 | if (*s == '\\' && s+1 < send) { |
1610 | s++; | |
02aa26ce NT |
1611 | |
1612 | /* some backslashes we leave behind */ | |
c9f97d15 | 1613 | if (*leaveit && *s && strchr(leaveit, *s)) { |
db42d148 NIS |
1614 | *d++ = NATIVE_TO_NEED(has_utf8,'\\'); |
1615 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
79072805 LW |
1616 | continue; |
1617 | } | |
02aa26ce NT |
1618 | |
1619 | /* deprecate \1 in strings and substitution replacements */ | |
3280af22 | 1620 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 1621 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 1622 | { |
599cee73 | 1623 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 1624 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s); |
79072805 LW |
1625 | *--s = '$'; |
1626 | break; | |
1627 | } | |
02aa26ce NT |
1628 | |
1629 | /* string-change backslash escapes */ | |
3280af22 | 1630 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
1631 | --s; |
1632 | break; | |
1633 | } | |
02aa26ce NT |
1634 | |
1635 | /* if we get here, it's either a quoted -, or a digit */ | |
79072805 | 1636 | switch (*s) { |
02aa26ce NT |
1637 | |
1638 | /* quoted - in transliterations */ | |
79072805 | 1639 | case '-': |
3280af22 | 1640 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
1641 | *d++ = *s++; |
1642 | continue; | |
1643 | } | |
1644 | /* FALL THROUGH */ | |
1645 | default: | |
11b8faa4 | 1646 | { |
041457d9 DM |
1647 | if (isALNUM(*s) && |
1648 | *s != '_' && | |
1649 | ckWARN(WARN_MISC)) | |
9014280d | 1650 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
11b8faa4 JH |
1651 | "Unrecognized escape \\%c passed through", |
1652 | *s); | |
1653 | /* default action is to copy the quoted character */ | |
f9a63242 | 1654 | goto default_action; |
11b8faa4 | 1655 | } |
02aa26ce NT |
1656 | |
1657 | /* \132 indicates an octal constant */ | |
79072805 LW |
1658 | case '0': case '1': case '2': case '3': |
1659 | case '4': case '5': case '6': case '7': | |
ba210ebe | 1660 | { |
53305cf1 NC |
1661 | I32 flags = 0; |
1662 | STRLEN len = 3; | |
1663 | uv = grok_oct(s, &len, &flags, NULL); | |
ba210ebe JH |
1664 | s += len; |
1665 | } | |
012bcf8d | 1666 | goto NUM_ESCAPE_INSERT; |
02aa26ce NT |
1667 | |
1668 | /* \x24 indicates a hex constant */ | |
79072805 | 1669 | case 'x': |
a0ed51b3 LW |
1670 | ++s; |
1671 | if (*s == '{') { | |
9d4ba2ae | 1672 | char* const e = strchr(s, '}'); |
a4c04bdc NC |
1673 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
1674 | PERL_SCAN_DISALLOW_PREFIX; | |
53305cf1 | 1675 | STRLEN len; |
355860ce | 1676 | |
53305cf1 | 1677 | ++s; |
adaeee49 | 1678 | if (!e) { |
a0ed51b3 | 1679 | yyerror("Missing right brace on \\x{}"); |
355860ce | 1680 | continue; |
ba210ebe | 1681 | } |
53305cf1 NC |
1682 | len = e - s; |
1683 | uv = grok_hex(s, &len, &flags, NULL); | |
ba210ebe | 1684 | s = e + 1; |
a0ed51b3 LW |
1685 | } |
1686 | else { | |
ba210ebe | 1687 | { |
53305cf1 | 1688 | STRLEN len = 2; |
a4c04bdc | 1689 | I32 flags = PERL_SCAN_DISALLOW_PREFIX; |
53305cf1 | 1690 | uv = grok_hex(s, &len, &flags, NULL); |
ba210ebe JH |
1691 | s += len; |
1692 | } | |
012bcf8d GS |
1693 | } |
1694 | ||
1695 | NUM_ESCAPE_INSERT: | |
1696 | /* Insert oct or hex escaped character. | |
301d3d20 | 1697 | * There will always enough room in sv since such |
db42d148 | 1698 | * escapes will be longer than any UTF-8 sequence |
301d3d20 | 1699 | * they can end up as. */ |
ba7cea30 | 1700 | |
c7f1f016 NIS |
1701 | /* We need to map to chars to ASCII before doing the tests |
1702 | to cover EBCDIC | |
1703 | */ | |
c4d5f83a | 1704 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(uv))) { |
9aa983d2 | 1705 | if (!has_utf8 && uv > 255) { |
301d3d20 JH |
1706 | /* Might need to recode whatever we have |
1707 | * accumulated so far if it contains any | |
1708 | * hibit chars. | |
1709 | * | |
1710 | * (Can't we keep track of that and avoid | |
1711 | * this rescan? --jhi) | |
012bcf8d | 1712 | */ |
c7f1f016 | 1713 | int hicount = 0; |
63cd0674 NIS |
1714 | U8 *c; |
1715 | for (c = (U8 *) SvPVX(sv); c < (U8 *)d; c++) { | |
c4d5f83a | 1716 | if (!NATIVE_IS_INVARIANT(*c)) { |
012bcf8d | 1717 | hicount++; |
db42d148 | 1718 | } |
012bcf8d | 1719 | } |
63cd0674 | 1720 | if (hicount) { |
9d4ba2ae | 1721 | const STRLEN offset = d - SvPVX_const(sv); |
db42d148 NIS |
1722 | U8 *src, *dst; |
1723 | d = SvGROW(sv, SvLEN(sv) + hicount + 1) + offset; | |
1724 | src = (U8 *)d - 1; | |
1725 | dst = src+hicount; | |
1726 | d += hicount; | |
cfd0369c | 1727 | while (src >= (const U8 *)SvPVX_const(sv)) { |
c4d5f83a | 1728 | if (!NATIVE_IS_INVARIANT(*src)) { |
9d4ba2ae | 1729 | const U8 ch = NATIVE_TO_ASCII(*src); |
eb160463 GS |
1730 | *dst-- = (U8)UTF8_EIGHT_BIT_LO(ch); |
1731 | *dst-- = (U8)UTF8_EIGHT_BIT_HI(ch); | |
012bcf8d GS |
1732 | } |
1733 | else { | |
63cd0674 | 1734 | *dst-- = *src; |
012bcf8d | 1735 | } |
c7f1f016 | 1736 | src--; |
012bcf8d GS |
1737 | } |
1738 | } | |
1739 | } | |
1740 | ||
9aa983d2 | 1741 | if (has_utf8 || uv > 255) { |
9041c2e3 | 1742 | d = (char*)uvchr_to_utf8((U8*)d, uv); |
4e553d73 | 1743 | has_utf8 = TRUE; |
f9a63242 JH |
1744 | if (PL_lex_inwhat == OP_TRANS && |
1745 | PL_sublex_info.sub_op) { | |
1746 | PL_sublex_info.sub_op->op_private |= | |
1747 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
1748 | : OPpTRANS_TO_UTF); | |
f9a63242 | 1749 | } |
012bcf8d | 1750 | } |
a0ed51b3 | 1751 | else { |
012bcf8d | 1752 | *d++ = (char)uv; |
a0ed51b3 | 1753 | } |
012bcf8d GS |
1754 | } |
1755 | else { | |
c4d5f83a | 1756 | *d++ = (char) uv; |
a0ed51b3 | 1757 | } |
79072805 | 1758 | continue; |
02aa26ce | 1759 | |
b239daa5 | 1760 | /* \N{LATIN SMALL LETTER A} is a named character */ |
4a2d328f | 1761 | case 'N': |
55eda711 | 1762 | ++s; |
423cee85 JH |
1763 | if (*s == '{') { |
1764 | char* e = strchr(s, '}'); | |
155aba94 | 1765 | SV *res; |
423cee85 | 1766 | STRLEN len; |
cfd0369c | 1767 | const char *str; |
4e553d73 | 1768 | |
423cee85 | 1769 | if (!e) { |
5777a3f7 | 1770 | yyerror("Missing right brace on \\N{}"); |
423cee85 JH |
1771 | e = s - 1; |
1772 | goto cont_scan; | |
1773 | } | |
dbc0d4f2 JH |
1774 | if (e > s + 2 && s[1] == 'U' && s[2] == '+') { |
1775 | /* \N{U+...} */ | |
1776 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | | |
1777 | PERL_SCAN_DISALLOW_PREFIX; | |
1778 | s += 3; | |
1779 | len = e - s; | |
1780 | uv = grok_hex(s, &len, &flags, NULL); | |
1781 | s = e + 1; | |
1782 | goto NUM_ESCAPE_INSERT; | |
1783 | } | |
55eda711 JH |
1784 | res = newSVpvn(s + 1, e - s - 1); |
1785 | res = new_constant( Nullch, 0, "charnames", | |
1786 | res, Nullsv, "\\N{...}" ); | |
f9a63242 JH |
1787 | if (has_utf8) |
1788 | sv_utf8_upgrade(res); | |
cfd0369c | 1789 | str = SvPV_const(res,len); |
1c47067b JH |
1790 | #ifdef EBCDIC_NEVER_MIND |
1791 | /* charnames uses pack U and that has been | |
1792 | * recently changed to do the below uni->native | |
1793 | * mapping, so this would be redundant (and wrong, | |
1794 | * the code point would be doubly converted). | |
1795 | * But leave this in just in case the pack U change | |
1796 | * gets revoked, but the semantics is still | |
1797 | * desireable for charnames. --jhi */ | |
cddc7ef4 | 1798 | { |
cfd0369c | 1799 | UV uv = utf8_to_uvchr((const U8*)str, 0); |
cddc7ef4 JH |
1800 | |
1801 | if (uv < 0x100) { | |
89ebb4a3 | 1802 | U8 tmpbuf[UTF8_MAXBYTES+1], *d; |
cddc7ef4 JH |
1803 | |
1804 | d = uvchr_to_utf8(tmpbuf, UNI_TO_NATIVE(uv)); | |
1805 | sv_setpvn(res, (char *)tmpbuf, d - tmpbuf); | |
cfd0369c | 1806 | str = SvPV_const(res, len); |
cddc7ef4 JH |
1807 | } |
1808 | } | |
1809 | #endif | |
89491803 | 1810 | if (!has_utf8 && SvUTF8(res)) { |
9d4ba2ae | 1811 | const char * const ostart = SvPVX_const(sv); |
f08d6ad9 GS |
1812 | SvCUR_set(sv, d - ostart); |
1813 | SvPOK_on(sv); | |
e4f3eed8 | 1814 | *d = '\0'; |
f08d6ad9 | 1815 | sv_utf8_upgrade(sv); |
d2f449dd | 1816 | /* this just broke our allocation above... */ |
eb160463 | 1817 | SvGROW(sv, (STRLEN)(send - start)); |
f08d6ad9 | 1818 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 1819 | has_utf8 = TRUE; |
f08d6ad9 | 1820 | } |
eb160463 | 1821 | if (len > (STRLEN)(e - s + 4)) { /* I _guess_ 4 is \N{} --jhi */ |
9d4ba2ae | 1822 | const char * const odest = SvPVX_const(sv); |
423cee85 | 1823 | |
8973db79 | 1824 | SvGROW(sv, (SvLEN(sv) + len - (e - s + 4))); |
423cee85 JH |
1825 | d = SvPVX(sv) + (d - odest); |
1826 | } | |
1827 | Copy(str, d, len, char); | |
1828 | d += len; | |
1829 | SvREFCNT_dec(res); | |
1830 | cont_scan: | |
1831 | s = e + 1; | |
1832 | } | |
1833 | else | |
5777a3f7 | 1834 | yyerror("Missing braces on \\N{}"); |
423cee85 JH |
1835 | continue; |
1836 | ||
02aa26ce | 1837 | /* \c is a control character */ |
79072805 LW |
1838 | case 'c': |
1839 | s++; | |
961ce445 | 1840 | if (s < send) { |
ba210ebe | 1841 | U8 c = *s++; |
c7f1f016 NIS |
1842 | #ifdef EBCDIC |
1843 | if (isLOWER(c)) | |
1844 | c = toUPPER(c); | |
1845 | #endif | |
db42d148 | 1846 | *d++ = NATIVE_TO_NEED(has_utf8,toCTRL(c)); |
ba210ebe | 1847 | } |
961ce445 RGS |
1848 | else { |
1849 | yyerror("Missing control char name in \\c"); | |
1850 | } | |
79072805 | 1851 | continue; |
02aa26ce NT |
1852 | |
1853 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 | 1854 | case 'b': |
db42d148 | 1855 | *d++ = NATIVE_TO_NEED(has_utf8,'\b'); |
79072805 LW |
1856 | break; |
1857 | case 'n': | |
db42d148 | 1858 | *d++ = NATIVE_TO_NEED(has_utf8,'\n'); |
79072805 LW |
1859 | break; |
1860 | case 'r': | |
db42d148 | 1861 | *d++ = NATIVE_TO_NEED(has_utf8,'\r'); |
79072805 LW |
1862 | break; |
1863 | case 'f': | |
db42d148 | 1864 | *d++ = NATIVE_TO_NEED(has_utf8,'\f'); |
79072805 LW |
1865 | break; |
1866 | case 't': | |
db42d148 | 1867 | *d++ = NATIVE_TO_NEED(has_utf8,'\t'); |
79072805 | 1868 | break; |
34a3fe2a | 1869 | case 'e': |
db42d148 | 1870 | *d++ = ASCII_TO_NEED(has_utf8,'\033'); |
34a3fe2a PP |
1871 | break; |
1872 | case 'a': | |
db42d148 | 1873 | *d++ = ASCII_TO_NEED(has_utf8,'\007'); |
79072805 | 1874 | break; |
02aa26ce NT |
1875 | } /* end switch */ |
1876 | ||
79072805 LW |
1877 | s++; |
1878 | continue; | |
02aa26ce | 1879 | } /* end if (backslash) */ |
4c3a8340 TS |
1880 | #ifdef EBCDIC |
1881 | else | |
1882 | literal_endpoint++; | |
1883 | #endif | |
02aa26ce | 1884 | |
f9a63242 | 1885 | default_action: |
2b9d42f0 NIS |
1886 | /* If we started with encoded form, or already know we want it |
1887 | and then encode the next character */ | |
1888 | if ((has_utf8 || this_utf8) && !NATIVE_IS_INVARIANT((U8)(*s))) { | |
1889 | STRLEN len = 1; | |
9d4ba2ae AL |
1890 | const UV uv = (this_utf8) ? utf8n_to_uvchr((U8*)s, send - s, &len, 0) : (UV) ((U8) *s); |
1891 | const STRLEN need = UNISKIP(NATIVE_TO_UNI(uv)); | |
2b9d42f0 NIS |
1892 | s += len; |
1893 | if (need > len) { | |
1894 | /* encoded value larger than old, need extra space (NOTE: SvCUR() not set here) */ | |
9d4ba2ae | 1895 | const STRLEN off = d - SvPVX_const(sv); |
2b9d42f0 NIS |
1896 | d = SvGROW(sv, SvLEN(sv) + (need-len)) + off; |
1897 | } | |
1898 | d = (char*)uvchr_to_utf8((U8*)d, uv); | |
1899 | has_utf8 = TRUE; | |
1900 | } | |
1901 | else { | |
1902 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
1903 | } | |
02aa26ce NT |
1904 | } /* while loop to process each character */ |
1905 | ||
1906 | /* terminate the string and set up the sv */ | |
79072805 | 1907 | *d = '\0'; |
95a20fc0 | 1908 | SvCUR_set(sv, d - SvPVX_const(sv)); |
2b9d42f0 | 1909 | if (SvCUR(sv) >= SvLEN(sv)) |
d0063567 | 1910 | Perl_croak(aTHX_ "panic: constant overflowed allocated space"); |
2b9d42f0 | 1911 | |
79072805 | 1912 | SvPOK_on(sv); |
9f4817db | 1913 | if (PL_encoding && !has_utf8) { |
d0063567 DK |
1914 | sv_recode_to_utf8(sv, PL_encoding); |
1915 | if (SvUTF8(sv)) | |
1916 | has_utf8 = TRUE; | |
9f4817db | 1917 | } |
2b9d42f0 | 1918 | if (has_utf8) { |
7e2040f0 | 1919 | SvUTF8_on(sv); |
2b9d42f0 | 1920 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
d0063567 | 1921 | PL_sublex_info.sub_op->op_private |= |
2b9d42f0 NIS |
1922 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); |
1923 | } | |
1924 | } | |
79072805 | 1925 | |
02aa26ce | 1926 | /* shrink the sv if we allocated more than we used */ |
79072805 | 1927 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
1da4ca5f | 1928 | SvPV_shrink_to_cur(sv); |
79072805 | 1929 | } |
02aa26ce | 1930 | |
9b599b2a | 1931 | /* return the substring (via yylval) only if we parsed anything */ |
3280af22 NIS |
1932 | if (s > PL_bufptr) { |
1933 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) | |
4e553d73 | 1934 | sv = new_constant(start, s - start, (PL_lex_inpat ? "qr" : "q"), |
b3ac6de7 | 1935 | sv, Nullsv, |
4e553d73 | 1936 | ( PL_lex_inwhat == OP_TRANS |
b3ac6de7 | 1937 | ? "tr" |
3280af22 | 1938 | : ( (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) |
b3ac6de7 IZ |
1939 | ? "s" |
1940 | : "qq"))); | |
79072805 | 1941 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 1942 | } else |
8990e307 | 1943 | SvREFCNT_dec(sv); |
79072805 LW |
1944 | return s; |
1945 | } | |
1946 | ||
ffb4593c NT |
1947 | /* S_intuit_more |
1948 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
1949 | * FALSE otherwise. | |
ffb4593c NT |
1950 | * |
1951 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
1952 | * | |
1953 | * ->[ and ->{ return TRUE | |
1954 | * { and [ outside a pattern are always subscripts, so return TRUE | |
1955 | * if we're outside a pattern and it's not { or [, then return FALSE | |
1956 | * if we're in a pattern and the first char is a { | |
1957 | * {4,5} (any digits around the comma) returns FALSE | |
1958 | * if we're in a pattern and the first char is a [ | |
1959 | * [] returns FALSE | |
1960 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
1961 | * character class or not. It has to deal with things like | |
1962 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
1963 | * anything else returns TRUE | |
1964 | */ | |
1965 | ||
9cbb5ea2 GS |
1966 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
1967 | ||
76e3520e | 1968 | STATIC int |
cea2e8a9 | 1969 | S_intuit_more(pTHX_ register char *s) |
79072805 | 1970 | { |
97aff369 | 1971 | dVAR; |
3280af22 | 1972 | if (PL_lex_brackets) |
79072805 LW |
1973 | return TRUE; |
1974 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
1975 | return TRUE; | |
1976 | if (*s != '{' && *s != '[') | |
1977 | return FALSE; | |
3280af22 | 1978 | if (!PL_lex_inpat) |
79072805 LW |
1979 | return TRUE; |
1980 | ||
1981 | /* In a pattern, so maybe we have {n,m}. */ | |
1982 | if (*s == '{') { | |
1983 | s++; | |
1984 | if (!isDIGIT(*s)) | |
1985 | return TRUE; | |
1986 | while (isDIGIT(*s)) | |
1987 | s++; | |
1988 | if (*s == ',') | |
1989 | s++; | |
1990 | while (isDIGIT(*s)) | |
1991 | s++; | |
1992 | if (*s == '}') | |
1993 | return FALSE; | |
1994 | return TRUE; | |
1995 | ||
1996 | } | |
1997 | ||
1998 | /* On the other hand, maybe we have a character class */ | |
1999 | ||
2000 | s++; | |
2001 | if (*s == ']' || *s == '^') | |
2002 | return FALSE; | |
2003 | else { | |
ffb4593c | 2004 | /* this is terrifying, and it works */ |
79072805 LW |
2005 | int weight = 2; /* let's weigh the evidence */ |
2006 | char seen[256]; | |
f27ffc4a | 2007 | unsigned char un_char = 255, last_un_char; |
9d4ba2ae | 2008 | const char * const send = strchr(s,']'); |
3280af22 | 2009 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
2010 | |
2011 | if (!send) /* has to be an expression */ | |
2012 | return TRUE; | |
2013 | ||
2014 | Zero(seen,256,char); | |
2015 | if (*s == '$') | |
2016 | weight -= 3; | |
2017 | else if (isDIGIT(*s)) { | |
2018 | if (s[1] != ']') { | |
2019 | if (isDIGIT(s[1]) && s[2] == ']') | |
2020 | weight -= 10; | |
2021 | } | |
2022 | else | |
2023 | weight -= 100; | |
2024 | } | |
2025 | for (; s < send; s++) { | |
2026 | last_un_char = un_char; | |
2027 | un_char = (unsigned char)*s; | |
2028 | switch (*s) { | |
2029 | case '@': | |
2030 | case '&': | |
2031 | case '$': | |
2032 | weight -= seen[un_char] * 10; | |
7e2040f0 | 2033 | if (isALNUM_lazy_if(s+1,UTF)) { |
8903cb82 | 2034 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
f776e3cd NC |
2035 | if ((int)strlen(tmpbuf) > 1 |
2036 | && gv_fetchpv(tmpbuf, 0, SVt_PV)) | |
79072805 LW |
2037 | weight -= 100; |
2038 | else | |
2039 | weight -= 10; | |
2040 | } | |
2041 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
2042 | strchr("[#!%*<>()-=",s[1])) { |
2043 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
2044 | weight -= 10; |
2045 | else | |
2046 | weight -= 1; | |
2047 | } | |
2048 | break; | |
2049 | case '\\': | |
2050 | un_char = 254; | |
2051 | if (s[1]) { | |
93a17b20 | 2052 | if (strchr("wds]",s[1])) |
79072805 LW |
2053 | weight += 100; |
2054 | else if (seen['\''] || seen['"']) | |
2055 | weight += 1; | |
93a17b20 | 2056 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
2057 | weight += 40; |
2058 | else if (isDIGIT(s[1])) { | |
2059 | weight += 40; | |
2060 | while (s[1] && isDIGIT(s[1])) | |
2061 | s++; | |
2062 | } | |
2063 | } | |
2064 | else | |
2065 | weight += 100; | |
2066 | break; | |
2067 | case '-': | |
2068 | if (s[1] == '\\') | |
2069 | weight += 50; | |
93a17b20 | 2070 | if (strchr("aA01! ",last_un_char)) |
79072805 | 2071 | weight += 30; |
93a17b20 | 2072 | if (strchr("zZ79~",s[1])) |
79072805 | 2073 | weight += 30; |
f27ffc4a GS |
2074 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
2075 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
2076 | break; |
2077 | default: | |
3792a11b NC |
2078 | if (!isALNUM(last_un_char) |
2079 | && !(last_un_char == '$' || last_un_char == '@' | |
2080 | || last_un_char == '&') | |
2081 | && isALPHA(*s) && s[1] && isALPHA(s[1])) { | |
79072805 LW |
2082 | char *d = tmpbuf; |
2083 | while (isALPHA(*s)) | |
2084 | *d++ = *s++; | |
2085 | *d = '\0'; | |
2086 | if (keyword(tmpbuf, d - tmpbuf)) | |
2087 | weight -= 150; | |
2088 | } | |
2089 | if (un_char == last_un_char + 1) | |
2090 | weight += 5; | |
2091 | weight -= seen[un_char]; | |
2092 | break; | |
2093 | } | |
2094 | seen[un_char]++; | |
2095 | } | |
2096 | if (weight >= 0) /* probably a character class */ | |
2097 | return FALSE; | |
2098 | } | |
2099 | ||
2100 | return TRUE; | |
2101 | } | |
ffed7fef | 2102 | |
ffb4593c NT |
2103 | /* |
2104 | * S_intuit_method | |
2105 | * | |
2106 | * Does all the checking to disambiguate | |
2107 | * foo bar | |
2108 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
2109 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
2110 | * | |
2111 | * First argument is the stuff after the first token, e.g. "bar". | |
2112 | * | |
2113 | * Not a method if bar is a filehandle. | |
2114 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
2115 | * Not a method if it's really "Foo $bar" | |
2116 | * Method if it's "foo $bar" | |
2117 | * Not a method if it's really "print foo $bar" | |
2118 | * Method if it's really "foo package::" (interpreted as package->foo) | |
8f8cf39c | 2119 | * Not a method if bar is known to be a subroutine ("sub bar; foo bar") |
3cb0bbe5 | 2120 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
2121 | * => |
2122 | */ | |
2123 | ||
76e3520e | 2124 | STATIC int |
62d55b22 | 2125 | S_intuit_method(pTHX_ char *start, GV *gv, CV *cv) |
a0d0e21e | 2126 | { |
97aff369 | 2127 | dVAR; |
a0d0e21e | 2128 | char *s = start + (*start == '$'); |
3280af22 | 2129 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
2130 | STRLEN len; |
2131 | GV* indirgv; | |
2132 | ||
2133 | if (gv) { | |
62d55b22 | 2134 | if (SvTYPE(gv) == SVt_PVGV && GvIO(gv)) |
a0d0e21e | 2135 | return 0; |
62d55b22 NC |
2136 | if (cv) { |
2137 | if (SvPOK(cv)) { | |
2138 | const char *proto = SvPVX_const(cv); | |
2139 | if (proto) { | |
2140 | if (*proto == ';') | |
2141 | proto++; | |
2142 | if (*proto == '*') | |
2143 | return 0; | |
2144 | } | |
b6c543e3 IZ |
2145 | } |
2146 | } else | |
a0d0e21e LW |
2147 | gv = 0; |
2148 | } | |
8903cb82 | 2149 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
2150 | /* start is the beginning of the possible filehandle/object, |
2151 | * and s is the end of it | |
2152 | * tmpbuf is a copy of it | |
2153 | */ | |
2154 | ||
a0d0e21e | 2155 | if (*start == '$') { |
3280af22 | 2156 | if (gv || PL_last_lop_op == OP_PRINT || isUPPER(*PL_tokenbuf)) |
a0d0e21e LW |
2157 | return 0; |
2158 | s = skipspace(s); | |
3280af22 NIS |
2159 | PL_bufptr = start; |
2160 | PL_expect = XREF; | |
a0d0e21e LW |
2161 | return *s == '(' ? FUNCMETH : METHOD; |
2162 | } | |
2163 | if (!keyword(tmpbuf, len)) { | |
c3e0f903 GS |
2164 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
2165 | len -= 2; | |
2166 | tmpbuf[len] = '\0'; | |
2167 | goto bare_package; | |
2168 | } | |
f776e3cd | 2169 | indirgv = gv_fetchpv(tmpbuf, 0, SVt_PVCV); |
8ebc5c01 | 2170 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
2171 | return 0; |
2172 | /* filehandle or package name makes it a method */ | |
89bfa8cd | 2173 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) { |
a0d0e21e | 2174 | s = skipspace(s); |
3280af22 | 2175 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 2176 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 2177 | bare_package: |
3280af22 | 2178 | PL_nextval[PL_nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, |
79cb57f6 | 2179 | newSVpvn(tmpbuf,len)); |
3280af22 NIS |
2180 | PL_nextval[PL_nexttoke].opval->op_private = OPpCONST_BARE; |
2181 | PL_expect = XTERM; | |
a0d0e21e | 2182 | force_next(WORD); |
3280af22 | 2183 | PL_bufptr = s; |
a0d0e21e LW |
2184 | return *s == '(' ? FUNCMETH : METHOD; |
2185 | } | |
2186 | } | |
2187 | return 0; | |
2188 | } | |
2189 | ||
ffb4593c NT |
2190 | /* |
2191 | * S_incl_perldb | |
2192 | * Return a string of Perl code to load the debugger. If PERL5DB | |
2193 | * is set, it will return the contents of that, otherwise a | |
2194 | * compile-time require of perl5db.pl. | |
2195 | */ | |
2196 | ||
bfed75c6 | 2197 | STATIC const char* |
cea2e8a9 | 2198 | S_incl_perldb(pTHX) |
a0d0e21e | 2199 | { |
97aff369 | 2200 | dVAR; |
3280af22 | 2201 | if (PL_perldb) { |
9d4ba2ae | 2202 | const char * const pdb = PerlEnv_getenv("PERL5DB"); |
a0d0e21e LW |
2203 | |
2204 | if (pdb) | |
2205 | return pdb; | |
93189314 | 2206 | SETERRNO(0,SS_NORMAL); |
a0d0e21e LW |
2207 | return "BEGIN { require 'perl5db.pl' }"; |
2208 | } | |
2209 | return ""; | |
2210 | } | |
2211 | ||
2212 | ||
16d20bd9 | 2213 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 2214 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
2215 | * Note that the filter function only applies to the current source file |
2216 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
2217 | * | |
2218 | * The datasv parameter (which may be NULL) can be used to pass | |
2219 | * private data to this instance of the filter. The filter function | |
2220 | * can recover the SV using the FILTER_DATA macro and use it to | |
2221 | * store private buffers and state information. | |
2222 | * | |
2223 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 2224 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 2225 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
2226 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
2227 | * private use must be set using malloc'd pointers. | |
2228 | */ | |
16d20bd9 AD |
2229 | |
2230 | SV * | |
864dbfa3 | 2231 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 2232 | { |
97aff369 | 2233 | dVAR; |
f4c556ac GS |
2234 | if (!funcp) |
2235 | return Nullsv; | |
2236 | ||
3280af22 NIS |
2237 | if (!PL_rsfp_filters) |
2238 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 2239 | if (!datasv) |
8c52afec | 2240 | datasv = NEWSV(255,0); |
862a34c6 | 2241 | SvUPGRADE(datasv, SVt_PVIO); |
8141890a | 2242 | IoANY(datasv) = FPTR2DPTR(void *, funcp); /* stash funcp into spare field */ |
e0c19803 | 2243 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac | 2244 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
8141890a | 2245 | IoANY(datasv), SvPV_nolen(datasv))); |
3280af22 NIS |
2246 | av_unshift(PL_rsfp_filters, 1); |
2247 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
2248 | return(datasv); |
2249 | } | |
4e553d73 | 2250 | |
16d20bd9 AD |
2251 | |
2252 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 2253 | void |
864dbfa3 | 2254 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 2255 | { |
97aff369 | 2256 | dVAR; |
e0c19803 | 2257 | SV *datasv; |
24801a4b | 2258 | |
33073adb | 2259 | #ifdef DEBUGGING |
8141890a | 2260 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", FPTR2DPTR(XPVIO *, funcp))); |
33073adb | 2261 | #endif |
3280af22 | 2262 | if (!PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
2263 | return; |
2264 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 2265 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
8141890a | 2266 | if (IoANY(datasv) == FPTR2DPTR(void *, funcp)) { |
e0c19803 | 2267 | IoFLAGS(datasv) &= ~IOf_FAKE_DIRP; |
4755096e | 2268 | IoANY(datasv) = (void *)NULL; |
3280af22 | 2269 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 2270 | |
16d20bd9 AD |
2271 | return; |
2272 | } | |
2273 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 2274 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
2275 | } |
2276 | ||
2277 | ||
1de9afcd RGS |
2278 | /* Invoke the idxth filter function for the current rsfp. */ |
2279 | /* maxlen 0 = read one text line */ | |
16d20bd9 | 2280 | I32 |
864dbfa3 | 2281 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
a0d0e21e | 2282 | { |
97aff369 | 2283 | dVAR; |
16d20bd9 AD |
2284 | filter_t funcp; |
2285 | SV *datasv = NULL; | |
e50aee73 | 2286 | |
3280af22 | 2287 | if (!PL_rsfp_filters) |
16d20bd9 | 2288 | return -1; |
1de9afcd | 2289 | if (idx > AvFILLp(PL_rsfp_filters)) { /* Any more filters? */ |
16d20bd9 AD |
2290 | /* Provide a default input filter to make life easy. */ |
2291 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
2292 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2293 | "filter_read %d: from rsfp\n", idx)); | |
4e553d73 | 2294 | if (maxlen) { |
16d20bd9 AD |
2295 | /* Want a block */ |
2296 | int len ; | |
f54cb97a | 2297 | const int old_len = SvCUR(buf_sv); |
16d20bd9 AD |
2298 | |
2299 | /* ensure buf_sv is large enough */ | |
eb160463 | 2300 | SvGROW(buf_sv, (STRLEN)(old_len + maxlen)) ; |
3280af22 NIS |
2301 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, maxlen)) <= 0){ |
2302 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
2303 | return -1; /* error */ |
2304 | else | |
2305 | return 0 ; /* end of file */ | |
2306 | } | |
16d20bd9 AD |
2307 | SvCUR_set(buf_sv, old_len + len) ; |
2308 | } else { | |
2309 | /* Want a line */ | |
3280af22 NIS |
2310 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
2311 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
2312 | return -1; /* error */ |
2313 | else | |
2314 | return 0 ; /* end of file */ | |
2315 | } | |
16d20bd9 AD |
2316 | } |
2317 | return SvCUR(buf_sv); | |
2318 | } | |
2319 | /* Skip this filter slot if filter has been deleted */ | |
1de9afcd | 2320 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef) { |
f4c556ac GS |
2321 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2322 | "filter_read %d: skipped (filter deleted)\n", | |
2323 | idx)); | |
16d20bd9 AD |
2324 | return FILTER_READ(idx+1, buf_sv, maxlen); /* recurse */ |
2325 | } | |
2326 | /* Get function pointer hidden within datasv */ | |
8141890a | 2327 | funcp = DPTR2FPTR(filter_t, IoANY(datasv)); |
f4c556ac GS |
2328 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2329 | "filter_read %d: via function %p (%s)\n", | |
cfd0369c | 2330 | idx, datasv, SvPV_nolen_const(datasv))); |
16d20bd9 AD |
2331 | /* Call function. The function is expected to */ |
2332 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 2333 | /* Return: <0:error, =0:eof, >0:not eof */ |
acfe0abc | 2334 | return (*funcp)(aTHX_ idx, buf_sv, maxlen); |
16d20bd9 AD |
2335 | } |
2336 | ||
76e3520e | 2337 | STATIC char * |
cea2e8a9 | 2338 | S_filter_gets(pTHX_ register SV *sv, register PerlIO *fp, STRLEN append) |
16d20bd9 | 2339 | { |
97aff369 | 2340 | dVAR; |
c39cd008 | 2341 | #ifdef PERL_CR_FILTER |
3280af22 | 2342 | if (!PL_rsfp_filters) { |
c39cd008 | 2343 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
2344 | } |
2345 | #endif | |
3280af22 | 2346 | if (PL_rsfp_filters) { |
55497cff | 2347 | if (!append) |
2348 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
2349 | if (FILTER_READ(0, sv, 0) > 0) |
2350 | return ( SvPVX(sv) ) ; | |
2351 | else | |
2352 | return Nullch ; | |
2353 | } | |
9d116dd7 | 2354 | else |
fd049845 | 2355 | return (sv_gets(sv, fp, append)); |
a0d0e21e LW |
2356 | } |
2357 | ||
01ec43d0 | 2358 | STATIC HV * |
7fc63493 | 2359 | S_find_in_my_stash(pTHX_ const char *pkgname, I32 len) |
def3634b | 2360 | { |
97aff369 | 2361 | dVAR; |
def3634b GS |
2362 | GV *gv; |
2363 | ||
01ec43d0 | 2364 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
2365 | return PL_curstash; |
2366 | ||
2367 | if (len > 2 && | |
2368 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
f776e3cd | 2369 | (gv = gv_fetchpv(pkgname, 0, SVt_PVHV))) |
01ec43d0 GS |
2370 | { |
2371 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
2372 | } |
2373 | ||
2374 | /* use constant CLASS => 'MyClass' */ | |
f776e3cd | 2375 | if ((gv = gv_fetchpv(pkgname, 0, SVt_PVCV))) { |
def3634b GS |
2376 | SV *sv; |
2377 | if (GvCV(gv) && (sv = cv_const_sv(GvCV(gv)))) { | |
83003860 | 2378 | pkgname = SvPV_nolen_const(sv); |
def3634b GS |
2379 | } |
2380 | } | |
2381 | ||
2382 | return gv_stashpv(pkgname, FALSE); | |
2383 | } | |
a0d0e21e | 2384 | |
468aa647 | 2385 | STATIC char * |
cc6ed77d | 2386 | S_tokenize_use(pTHX_ int is_use, char *s) { |
97aff369 | 2387 | dVAR; |
468aa647 RGS |
2388 | if (PL_expect != XSTATE) |
2389 | yyerror(Perl_form(aTHX_ "\"%s\" not allowed in expression", | |
2390 | is_use ? "use" : "no")); | |
2391 | s = skipspace(s); | |
2392 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { | |
2393 | s = force_version(s, TRUE); | |
2394 | if (*s == ';' || (s = skipspace(s), *s == ';')) { | |
2395 | PL_nextval[PL_nexttoke].opval = Nullop; | |
2396 | force_next(WORD); | |
2397 | } | |
2398 | else if (*s == 'v') { | |
2399 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
2400 | s = force_version(s, FALSE); | |
2401 | } | |
2402 | } | |
2403 | else { | |
2404 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
2405 | s = force_version(s, FALSE); | |
2406 | } | |
2407 | yylval.ival = is_use; | |
2408 | return s; | |
2409 | } | |
748a9306 | 2410 | #ifdef DEBUGGING |
27da23d5 | 2411 | static const char* const exp_name[] = |
09bef843 | 2412 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
27308ded | 2413 | "ATTRTERM", "TERMBLOCK", "TERMORDORDOR" |
09bef843 | 2414 | }; |
748a9306 | 2415 | #endif |
463ee0b2 | 2416 | |
02aa26ce NT |
2417 | /* |
2418 | yylex | |
2419 | ||
2420 | Works out what to call the token just pulled out of the input | |
2421 | stream. The yacc parser takes care of taking the ops we return and | |
2422 | stitching them into a tree. | |
2423 | ||
2424 | Returns: | |
2425 | PRIVATEREF | |
2426 | ||
2427 | Structure: | |
2428 | if read an identifier | |
2429 | if we're in a my declaration | |
2430 | croak if they tried to say my($foo::bar) | |
2431 | build the ops for a my() declaration | |
2432 | if it's an access to a my() variable | |
2433 | are we in a sort block? | |
2434 | croak if my($a); $a <=> $b | |
2435 | build ops for access to a my() variable | |
2436 | if in a dq string, and they've said @foo and we can't find @foo | |
2437 | croak | |
2438 | build ops for a bareword | |
2439 | if we already built the token before, use it. | |
2440 | */ | |
2441 | ||
20141f0e | 2442 | |
dba4d153 JH |
2443 | #ifdef __SC__ |
2444 | #pragma segment Perl_yylex | |
2445 | #endif | |
dba4d153 | 2446 | int |
dba4d153 | 2447 | Perl_yylex(pTHX) |
20141f0e | 2448 | { |
97aff369 | 2449 | dVAR; |
3afc138a | 2450 | register char *s = PL_bufptr; |
378cc40b | 2451 | register char *d; |
463ee0b2 | 2452 | STRLEN len; |
aa7440fb | 2453 | bool bof = FALSE; |
a687059c | 2454 | |
bbf60fe6 | 2455 | DEBUG_T( { |
396482e1 | 2456 | SV* tmp = newSVpvs(""); |
b6007c36 DM |
2457 | PerlIO_printf(Perl_debug_log, "### %"IVdf":LEX_%s/X%s %s\n", |
2458 | (IV)CopLINE(PL_curcop), | |
2459 | lex_state_names[PL_lex_state], | |
2460 | exp_name[PL_expect], | |
2461 | pv_display(tmp, s, strlen(s), 0, 60)); | |
2462 | SvREFCNT_dec(tmp); | |
bbf60fe6 | 2463 | } ); |
02aa26ce | 2464 | /* check if there's an identifier for us to look at */ |
ba979b31 | 2465 | if (PL_pending_ident) |
bbf60fe6 | 2466 | return REPORT(S_pending_ident(aTHX)); |
bbce6d69 | 2467 | |
02aa26ce NT |
2468 | /* no identifier pending identification */ |
2469 | ||
3280af22 | 2470 | switch (PL_lex_state) { |
79072805 LW |
2471 | #ifdef COMMENTARY |
2472 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
2473 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
2474 | break; | |
2475 | #endif | |
2476 | ||
09bef843 | 2477 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 2478 | case LEX_KNOWNEXT: |
3280af22 NIS |
2479 | PL_nexttoke--; |
2480 | yylval = PL_nextval[PL_nexttoke]; | |
2481 | if (!PL_nexttoke) { | |
2482 | PL_lex_state = PL_lex_defer; | |
2483 | PL_expect = PL_lex_expect; | |
2484 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 2485 | } |
bbf60fe6 | 2486 | return REPORT(PL_nexttype[PL_nexttoke]); |
79072805 | 2487 | |
02aa26ce | 2488 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 2489 | when we get here, PL_bufptr is at the \ |
02aa26ce | 2490 | */ |
79072805 LW |
2491 | case LEX_INTERPCASEMOD: |
2492 | #ifdef DEBUGGING | |
3280af22 | 2493 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 2494 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 2495 | #endif |
02aa26ce | 2496 | /* handle \E or end of string */ |
3280af22 | 2497 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
02aa26ce | 2498 | /* if at a \E */ |
3280af22 | 2499 | if (PL_lex_casemods) { |
f54cb97a | 2500 | const char oldmod = PL_lex_casestack[--PL_lex_casemods]; |
3280af22 | 2501 | PL_lex_casestack[PL_lex_casemods] = '\0'; |
02aa26ce | 2502 | |
3792a11b NC |
2503 | if (PL_bufptr != PL_bufend |
2504 | && (oldmod == 'L' || oldmod == 'U' || oldmod == 'Q')) { | |
3280af22 NIS |
2505 | PL_bufptr += 2; |
2506 | PL_lex_state = LEX_INTERPCONCAT; | |
a0d0e21e | 2507 | } |
bbf60fe6 | 2508 | return REPORT(')'); |
79072805 | 2509 | } |
3280af22 NIS |
2510 | if (PL_bufptr != PL_bufend) |
2511 | PL_bufptr += 2; | |
2512 | PL_lex_state = LEX_INTERPCONCAT; | |
cea2e8a9 | 2513 | return yylex(); |
79072805 LW |
2514 | } |
2515 | else { | |
607df283 | 2516 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 2517 | "### Saw case modifier\n"); }); |
3280af22 | 2518 | s = PL_bufptr + 1; |
6e909404 JH |
2519 | if (s[1] == '\\' && s[2] == 'E') { |
2520 | PL_bufptr = s + 3; | |
2521 | PL_lex_state = LEX_INTERPCONCAT; | |
2522 | return yylex(); | |
a0d0e21e | 2523 | } |
6e909404 | 2524 | else { |
90771dc0 | 2525 | I32 tmp; |
6e909404 JH |
2526 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) |
2527 | tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */ | |
3792a11b | 2528 | if ((*s == 'L' || *s == 'U') && |
6e909404 JH |
2529 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) { |
2530 | PL_lex_casestack[--PL_lex_casemods] = '\0'; | |
bbf60fe6 | 2531 | return REPORT(')'); |
6e909404 JH |
2532 | } |
2533 | if (PL_lex_casemods > 10) | |
2534 | Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
2535 | PL_lex_casestack[PL_lex_casemods++] = *s; | |
2536 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
2537 | PL_lex_state = LEX_INTERPCONCAT; | |
2538 | PL_nextval[PL_nexttoke].ival = 0; | |
2539 | force_next('('); | |
2540 | if (*s == 'l') | |
2541 | PL_nextval[PL_nexttoke].ival = OP_LCFIRST; | |
2542 | else if (*s == 'u') | |
2543 | PL_nextval[PL_nexttoke].ival = OP_UCFIRST; | |
2544 | else if (*s == 'L') | |
2545 | PL_nextval[PL_nexttoke].ival = OP_LC; | |
2546 | else if (*s == 'U') | |
2547 | PL_nextval[PL_nexttoke].ival = OP_UC; | |
2548 | else if (*s == 'Q') | |
2549 | PL_nextval[PL_nexttoke].ival = OP_QUOTEMETA; | |
2550 | else | |
2551 | Perl_croak(aTHX_ "panic: yylex"); | |
2552 | PL_bufptr = s + 1; | |
a0d0e21e | 2553 | } |
79072805 | 2554 | force_next(FUNC); |
3280af22 NIS |
2555 | if (PL_lex_starts) { |
2556 | s = PL_bufptr; | |
2557 | PL_lex_starts = 0; | |
131b3ad0 DM |
2558 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
2559 | if (PL_lex_casemods == 1 && PL_lex_inpat) | |
2560 | OPERATOR(','); | |
2561 | else | |
2562 | Aop(OP_CONCAT); | |
79072805 LW |
2563 | } |
2564 | else | |
cea2e8a9 | 2565 | return yylex(); |
79072805 LW |
2566 | } |
2567 | ||
55497cff | 2568 | case LEX_INTERPPUSH: |
bbf60fe6 | 2569 | return REPORT(sublex_push()); |
55497cff | 2570 | |
79072805 | 2571 | case LEX_INTERPSTART: |
3280af22 | 2572 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 2573 | return REPORT(sublex_done()); |
607df283 | 2574 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 2575 | "### Interpolated variable\n"); }); |
3280af22 NIS |
2576 | PL_expect = XTERM; |
2577 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
2578 | PL_lex_state = LEX_INTERPNORMAL; | |
2579 | if (PL_lex_dojoin) { | |
2580 | PL_nextval[PL_nexttoke].ival = 0; | |
79072805 | 2581 | force_next(','); |
a0d0e21e | 2582 | force_ident("\"", '$'); |
3280af22 | 2583 | PL_nextval[PL_nexttoke].ival = 0; |
79072805 | 2584 | force_next('$'); |
3280af22 | 2585 | PL_nextval[PL_nexttoke].ival = 0; |
79072805 | 2586 | force_next('('); |
3280af22 | 2587 | PL_nextval[PL_nexttoke].ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
2588 | force_next(FUNC); |
2589 | } | |
3280af22 NIS |
2590 | if (PL_lex_starts++) { |
2591 | s = PL_bufptr; | |
131b3ad0 DM |
2592 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
2593 | if (!PL_lex_casemods && PL_lex_inpat) | |
2594 | OPERATOR(','); | |
2595 | else | |
2596 | Aop(OP_CONCAT); | |
79072805 | 2597 | } |
cea2e8a9 | 2598 | return yylex(); |
79072805 LW |
2599 | |
2600 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
2601 | if (intuit_more(PL_bufptr)) { |
2602 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
2603 | break; |
2604 | } | |
2605 | /* FALL THROUGH */ | |
2606 | ||
2607 | case LEX_INTERPEND: | |
3280af22 NIS |
2608 | if (PL_lex_dojoin) { |
2609 | PL_lex_dojoin = FALSE; | |
2610 | PL_lex_state = LEX_INTERPCONCAT; | |
bbf60fe6 | 2611 | return REPORT(')'); |
79072805 | 2612 | } |
43a16006 | 2613 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 2614 | && SvEVALED(PL_lex_repl)) |
43a16006 | 2615 | { |
e9fa98b2 | 2616 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 2617 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
e9fa98b2 HS |
2618 | PL_lex_repl = Nullsv; |
2619 | } | |
79072805 LW |
2620 | /* FALLTHROUGH */ |
2621 | case LEX_INTERPCONCAT: | |
2622 | #ifdef DEBUGGING | |
3280af22 | 2623 | if (PL_lex_brackets) |
cea2e8a9 | 2624 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 2625 | #endif |
3280af22 | 2626 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 2627 | return REPORT(sublex_done()); |
79072805 | 2628 | |
3280af22 NIS |
2629 | if (SvIVX(PL_linestr) == '\'') { |
2630 | SV *sv = newSVsv(PL_linestr); | |
2631 | if (!PL_lex_inpat) | |
76e3520e | 2632 | sv = tokeq(sv); |
3280af22 | 2633 | else if ( PL_hints & HINT_NEW_RE ) |
b3ac6de7 | 2634 | sv = new_constant(NULL, 0, "qr", sv, sv, "q"); |
79072805 | 2635 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 2636 | s = PL_bufend; |
79072805 LW |
2637 | } |
2638 | else { | |
3280af22 | 2639 | s = scan_const(PL_bufptr); |
79072805 | 2640 | if (*s == '\\') |
3280af22 | 2641 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 2642 | else |
3280af22 | 2643 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
2644 | } |
2645 | ||
3280af22 NIS |
2646 | if (s != PL_bufptr) { |
2647 | PL_nextval[PL_nexttoke] = yylval; | |
2648 | PL_expect = XTERM; | |
79072805 | 2649 | force_next(THING); |
131b3ad0 DM |
2650 | if (PL_lex_starts++) { |
2651 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ | |
2652 | if (!PL_lex_casemods && PL_lex_inpat) | |
2653 | OPERATOR(','); | |
2654 | else | |
2655 | Aop(OP_CONCAT); | |
2656 | } | |
79072805 | 2657 | else { |
3280af22 | 2658 | PL_bufptr = s; |
cea2e8a9 | 2659 | return yylex(); |
79072805 LW |
2660 | } |
2661 | } | |
2662 | ||
cea2e8a9 | 2663 | return yylex(); |
a0d0e21e | 2664 | case LEX_FORMLINE: |
3280af22 NIS |
2665 | PL_lex_state = LEX_NORMAL; |
2666 | s = scan_formline(PL_bufptr); | |
2667 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
2668 | goto rightbracket; |
2669 | OPERATOR(';'); | |
79072805 LW |
2670 | } |
2671 | ||
3280af22 NIS |
2672 | s = PL_bufptr; |
2673 | PL_oldoldbufptr = PL_oldbufptr; | |
2674 | PL_oldbufptr = s; | |
463ee0b2 LW |
2675 | |
2676 | retry: | |
378cc40b LW |
2677 | switch (*s) { |
2678 | default: | |
7e2040f0 | 2679 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 2680 | goto keylookup; |
cea2e8a9 | 2681 | Perl_croak(aTHX_ "Unrecognized character \\x%02X", *s & 255); |
e929a76b LW |
2682 | case 4: |
2683 | case 26: | |
2684 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 2685 | case 0: |
3280af22 NIS |
2686 | if (!PL_rsfp) { |
2687 | PL_last_uni = 0; | |
2688 | PL_last_lop = 0; | |
c5ee2135 | 2689 | if (PL_lex_brackets) { |
0bd48802 AL |
2690 | yyerror(PL_lex_formbrack |
2691 | ? "Format not terminated" | |
2692 | : "Missing right curly or square bracket"); | |
c5ee2135 | 2693 | } |
4e553d73 | 2694 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 2695 | "### Tokener got EOF\n"); |
5f80b19c | 2696 | } ); |
79072805 | 2697 | TOKEN(0); |
463ee0b2 | 2698 | } |
3280af22 | 2699 | if (s++ < PL_bufend) |
a687059c | 2700 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
2701 | PL_last_uni = 0; |
2702 | PL_last_lop = 0; | |
2703 | if (!PL_in_eval && !PL_preambled) { | |
2704 | PL_preambled = TRUE; | |
2705 | sv_setpv(PL_linestr,incl_perldb()); | |
2706 | if (SvCUR(PL_linestr)) | |
396482e1 | 2707 | sv_catpvs(PL_linestr,";"); |
3280af22 NIS |
2708 | if (PL_preambleav){ |
2709 | while(AvFILLp(PL_preambleav) >= 0) { | |
2710 | SV *tmpsv = av_shift(PL_preambleav); | |
2711 | sv_catsv(PL_linestr, tmpsv); | |
396482e1 | 2712 | sv_catpvs(PL_linestr, ";"); |
91b7def8 | 2713 | sv_free(tmpsv); |
2714 | } | |
3280af22 NIS |
2715 | sv_free((SV*)PL_preambleav); |
2716 | PL_preambleav = NULL; | |
91b7def8 | 2717 | } |
3280af22 | 2718 | if (PL_minus_n || PL_minus_p) { |
396482e1 | 2719 | sv_catpvs(PL_linestr, "LINE: while (<>) {"); |
3280af22 | 2720 | if (PL_minus_l) |
396482e1 | 2721 | sv_catpvs(PL_linestr,"chomp;"); |
3280af22 | 2722 | if (PL_minus_a) { |
3280af22 | 2723 | if (PL_minus_F) { |
3792a11b NC |
2724 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
2725 | || *PL_splitstr == '"') | |
3280af22 | 2726 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 2727 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 2728 | else { |
c8ef6a4b NC |
2729 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
2730 | bytes can be used as quoting characters. :-) */ | |
dd374669 | 2731 | const char *splits = PL_splitstr; |
91d456ae | 2732 | sv_catpvs(PL_linestr, "our @F=split(q\0"); |
48c4c863 NC |
2733 | do { |
2734 | /* Need to \ \s */ | |
dd374669 AL |
2735 | if (*splits == '\\') |
2736 | sv_catpvn(PL_linestr, splits, 1); | |
2737 | sv_catpvn(PL_linestr, splits, 1); | |
2738 | } while (*splits++); | |
48c4c863 NC |
2739 | /* This loop will embed the trailing NUL of |
2740 | PL_linestr as the last thing it does before | |
2741 | terminating. */ | |
396482e1 | 2742 | sv_catpvs(PL_linestr, ");"); |
54310121 | 2743 | } |
2304df62 AD |
2744 | } |
2745 | else | |
396482e1 | 2746 | sv_catpvs(PL_linestr,"our @F=split(' ');"); |
2304df62 | 2747 | } |
79072805 | 2748 | } |
bc9b29db | 2749 | if (PL_minus_E) |
396482e1 GA |
2750 | sv_catpvs(PL_linestr,"use feature ':5.10';"); |
2751 | sv_catpvs(PL_linestr, "\n"); | |
3280af22 NIS |
2752 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
2753 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 2754 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 | 2755 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
9d4ba2ae | 2756 | SV * const sv = NEWSV(85,0); |
a0d0e21e LW |
2757 | |
2758 | sv_upgrade(sv, SVt_PVMG); | |
3280af22 | 2759 | sv_setsv(sv,PL_linestr); |
0ac0412a | 2760 | (void)SvIOK_on(sv); |
45977657 | 2761 | SvIV_set(sv, 0); |
36c7798d | 2762 | av_store(CopFILEAVx(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
a0d0e21e | 2763 | } |
79072805 | 2764 | goto retry; |
a687059c | 2765 | } |
e929a76b | 2766 | do { |
aa7440fb | 2767 | bof = PL_rsfp ? TRUE : FALSE; |
7e28d3af JH |
2768 | if ((s = filter_gets(PL_linestr, PL_rsfp, 0)) == Nullch) { |
2769 | fake_eof: | |
2770 | if (PL_rsfp) { | |
2771 | if (PL_preprocess && !PL_in_eval) | |
2772 | (void)PerlProc_pclose(PL_rsfp); | |
2773 | else if ((PerlIO *)PL_rsfp == PerlIO_stdin()) | |
2774 | PerlIO_clearerr(PL_rsfp); | |
2775 | else | |
2776 | (void)PerlIO_close(PL_rsfp); | |
2777 | PL_rsfp = Nullfp; | |
2778 | PL_doextract = FALSE; | |
2779 | } | |
2780 | if (!PL_in_eval && (PL_minus_n || PL_minus_p)) { | |
a23c4656 NC |
2781 | sv_setpv(PL_linestr,PL_minus_p |
2782 | ? ";}continue{print;}" : ";}"); | |
7e28d3af JH |
2783 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
2784 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 2785 | PL_last_lop = PL_last_uni = Nullch; |
7e28d3af JH |
2786 | PL_minus_n = PL_minus_p = 0; |
2787 | goto retry; | |
2788 | } | |
2789 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
207e3d1a | 2790 | PL_last_lop = PL_last_uni = Nullch; |
c69006e4 | 2791 | sv_setpvn(PL_linestr,"",0); |
7e28d3af JH |
2792 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ |
2793 | } | |
7aa207d6 JH |
2794 | /* If it looks like the start of a BOM or raw UTF-16, |
2795 | * check if it in fact is. */ | |
2796 | else if (bof && | |
2797 | (*s == 0 || | |
2798 | *(U8*)s == 0xEF || | |
2799 | *(U8*)s >= 0xFE || | |
2800 | s[1] == 0)) { | |
226017aa | 2801 | #ifdef PERLIO_IS_STDIO |
e3f494f1 JH |
2802 | # ifdef __GNU_LIBRARY__ |
2803 | # if __GNU_LIBRARY__ == 1 /* Linux glibc5 */ | |
226017aa DD |
2804 | # define FTELL_FOR_PIPE_IS_BROKEN |
2805 | # endif | |
e3f494f1 JH |
2806 | # else |
2807 | # ifdef __GLIBC__ | |
2808 | # if __GLIBC__ == 1 /* maybe some glibc5 release had it like this? */ | |
2809 | # define FTELL_FOR_PIPE_IS_BROKEN | |
2810 | # endif | |
2811 | # endif | |
226017aa DD |
2812 | # endif |
2813 | #endif | |
2814 | #ifdef FTELL_FOR_PIPE_IS_BROKEN | |
2815 | /* This loses the possibility to detect the bof | |
2816 | * situation on perl -P when the libc5 is being used. | |
2817 | * Workaround? Maybe attach some extra state to PL_rsfp? | |
2818 | */ | |
2819 | if (!PL_preprocess) | |
7e28d3af | 2820 | bof = PerlIO_tell(PL_rsfp) == SvCUR(PL_linestr); |
226017aa | 2821 | #else |
eb160463 | 2822 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
226017aa | 2823 | #endif |
7e28d3af | 2824 | if (bof) { |
3280af22 | 2825 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 2826 | s = swallow_bom((U8*)s); |
e929a76b | 2827 | } |
378cc40b | 2828 | } |
3280af22 | 2829 | if (PL_doextract) { |
a0d0e21e LW |
2830 | /* Incest with pod. */ |
2831 | if (*s == '=' && strnEQ(s, "=cut", 4)) { | |
c69006e4 | 2832 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
2833 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
2834 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 2835 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 | 2836 | PL_doextract = FALSE; |
a0d0e21e | 2837 | } |
4e553d73 | 2838 | } |
463ee0b2 | 2839 | incline(s); |
3280af22 NIS |
2840 | } while (PL_doextract); |
2841 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
2842 | if (PERLDB_LINE && PL_curstash != PL_debstash) { | |
9d4ba2ae | 2843 | SV * const sv = NEWSV(85,0); |
a687059c | 2844 | |
93a17b20 | 2845 | sv_upgrade(sv, SVt_PVMG); |
3280af22 | 2846 | sv_setsv(sv,PL_linestr); |
0ac0412a | 2847 | (void)SvIOK_on(sv); |
45977657 | 2848 | SvIV_set(sv, 0); |
36c7798d | 2849 | av_store(CopFILEAVx(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
a687059c | 2850 | } |
3280af22 | 2851 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
207e3d1a | 2852 | PL_last_lop = PL_last_uni = Nullch; |
57843af0 | 2853 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 2854 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 2855 | s++; |
a0d0e21e | 2856 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 2857 | s++; |
44a8e56a | 2858 | d = Nullch; |
3280af22 | 2859 | if (!PL_in_eval) { |
44a8e56a | 2860 | if (*s == '#' && *(s+1) == '!') |
2861 | d = s + 2; | |
2862 | #ifdef ALTERNATE_SHEBANG | |
2863 | else { | |
bfed75c6 | 2864 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 2865 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
2866 | d = s + (sizeof(as) - 1); | |
2867 | } | |
2868 | #endif /* ALTERNATE_SHEBANG */ | |
2869 | } | |
2870 | if (d) { | |
b8378b72 | 2871 | char *ipath; |
774d564b | 2872 | char *ipathend; |
b8378b72 | 2873 | |
774d564b | 2874 | while (isSPACE(*d)) |
b8378b72 CS |
2875 | d++; |
2876 | ipath = d; | |
774d564b | 2877 | while (*d && !isSPACE(*d)) |
2878 | d++; | |
2879 | ipathend = d; | |
2880 | ||
2881 | #ifdef ARG_ZERO_IS_SCRIPT | |
2882 | if (ipathend > ipath) { | |
2883 | /* | |
2884 | * HP-UX (at least) sets argv[0] to the script name, | |
2885 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
2886 | * at least, set argv[0] to the basename of the Perl | |
2887 | * interpreter. So, having found "#!", we'll set it right. | |
2888 | */ | |
f776e3cd NC |
2889 | SV * const x |
2890 | = GvSV(gv_fetchpv("\030", GV_ADD, SVt_PV)); /* $^X */ | |
774d564b | 2891 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 2892 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 2893 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 2894 | SvSETMAGIC(x); |
2895 | } | |
556c1dec JH |
2896 | else { |
2897 | STRLEN blen; | |
2898 | STRLEN llen; | |
cfd0369c | 2899 | const char *bstart = SvPV_const(CopFILESV(PL_curcop),blen); |
9d4ba2ae | 2900 | const char * const lstart = SvPV_const(x,llen); |
556c1dec JH |
2901 | if (llen < blen) { |
2902 | bstart += blen - llen; | |
2903 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
2904 | sv_setpvn(x, ipath, ipathend - ipath); | |
2905 | SvSETMAGIC(x); | |
2906 | } | |
2907 | } | |
2908 | } | |
774d564b | 2909 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 2910 | } |
774d564b | 2911 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
2912 | |
2913 | /* | |
2914 | * Look for options. | |
2915 | */ | |
748a9306 | 2916 | d = instr(s,"perl -"); |
84e30d1a | 2917 | if (!d) { |
748a9306 | 2918 | d = instr(s,"perl"); |
84e30d1a GS |
2919 | #if defined(DOSISH) |
2920 | /* avoid getting into infinite loops when shebang | |
2921 | * line contains "Perl" rather than "perl" */ | |
2922 | if (!d) { | |
2923 | for (d = ipathend-4; d >= ipath; --d) { | |
2924 | if ((*d == 'p' || *d == 'P') | |
2925 | && !ibcmp(d, "perl", 4)) | |
2926 | { | |
2927 | break; | |
2928 | } | |
2929 | } | |
2930 | if (d < ipath) | |
2931 | d = Nullch; | |
2932 | } | |
2933 | #endif | |
2934 | } | |
44a8e56a | 2935 | #ifdef ALTERNATE_SHEBANG |
2936 | /* | |
2937 | * If the ALTERNATE_SHEBANG on this system starts with a | |
2938 | * character that can be part of a Perl expression, then if | |
2939 | * we see it but not "perl", we're probably looking at the | |
2940 | * start of Perl code, not a request to hand off to some | |
2941 | * other interpreter. Similarly, if "perl" is there, but | |
2942 | * not in the first 'word' of the line, we assume the line | |
2943 | * contains the start of the Perl program. | |
44a8e56a | 2944 | */ |
2945 | if (d && *s != '#') { | |
f54cb97a | 2946 | const char *c = ipath; |
44a8e56a | 2947 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
2948 | c++; | |
2949 | if (c < d) | |
2950 | d = Nullch; /* "perl" not in first word; ignore */ | |
2951 | else | |
2952 | *s = '#'; /* Don't try to parse shebang line */ | |
2953 | } | |
774d564b | 2954 | #endif /* ALTERNATE_SHEBANG */ |
bf4acbe4 | 2955 | #ifndef MACOS_TRADITIONAL |
748a9306 | 2956 | if (!d && |
44a8e56a | 2957 | *s == '#' && |
774d564b | 2958 | ipathend > ipath && |
3280af22 | 2959 | !PL_minus_c && |
748a9306 | 2960 | !instr(s,"indir") && |
3280af22 | 2961 | instr(PL_origargv[0],"perl")) |
748a9306 | 2962 | { |
27da23d5 | 2963 | dVAR; |
9f68db38 | 2964 | char **newargv; |
9f68db38 | 2965 | |
774d564b | 2966 | *ipathend = '\0'; |
2967 | s = ipathend + 1; | |
3280af22 | 2968 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 2969 | s++; |
3280af22 | 2970 | if (s < PL_bufend) { |
a02a5408 | 2971 | Newxz(newargv,PL_origargc+3,char*); |
9f68db38 | 2972 | newargv[1] = s; |
3280af22 | 2973 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
2974 | s++; |
2975 | *s = '\0'; | |
3280af22 | 2976 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
2977 | } |
2978 | else | |
3280af22 | 2979 | newargv = PL_origargv; |
774d564b | 2980 | newargv[0] = ipath; |
b35112e7 | 2981 | PERL_FPU_PRE_EXEC |
b4748376 | 2982 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
b35112e7 | 2983 | PERL_FPU_POST_EXEC |
cea2e8a9 | 2984 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 2985 | } |
bf4acbe4 | 2986 | #endif |
748a9306 | 2987 | if (d) { |
748a9306 | 2988 | while (*d && !isSPACE(*d)) d++; |
bf4acbe4 | 2989 | while (SPACE_OR_TAB(*d)) d++; |
748a9306 LW |
2990 | |
2991 | if (*d++ == '-') { | |
f54cb97a | 2992 | const bool switches_done = PL_doswitches; |
fb993905 GA |
2993 | const U32 oldpdb = PL_perldb; |
2994 | const bool oldn = PL_minus_n; | |
2995 | const bool oldp = PL_minus_p; | |
2996 | ||
8cc95fdb | 2997 | do { |
3ffe3ee4 | 2998 | if (*d == 'M' || *d == 'm' || *d == 'C') { |
9d4ba2ae | 2999 | const char * const m = d; |
8cc95fdb | 3000 | while (*d && !isSPACE(*d)) d++; |
cea2e8a9 | 3001 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
8cc95fdb | 3002 | (int)(d - m), m); |
3003 | } | |
3004 | d = moreswitches(d); | |
3005 | } while (d); | |
f0b2cf55 YST |
3006 | if (PL_doswitches && !switches_done) { |
3007 | int argc = PL_origargc; | |
3008 | char **argv = PL_origargv; | |
3009 | do { | |
3010 | argc--,argv++; | |
3011 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
3012 | init_argv_symbols(argc,argv); | |
3013 | } | |
155aba94 GS |
3014 | if ((PERLDB_LINE && !oldpdb) || |
3015 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) | |
b084f20b | 3016 | /* if we have already added "LINE: while (<>) {", |
3017 | we must not do it again */ | |
748a9306 | 3018 | { |
c69006e4 | 3019 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3020 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3021 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 3022 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 | 3023 | PL_preambled = FALSE; |
84902520 | 3024 | if (PERLDB_LINE) |
3280af22 | 3025 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
3026 | goto retry; |
3027 | } | |
a0d0e21e | 3028 | } |
79072805 | 3029 | } |
9f68db38 | 3030 | } |
79072805 | 3031 | } |
3280af22 NIS |
3032 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3033 | PL_bufptr = s; | |
3034 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3035 | return yylex(); |
ae986130 | 3036 | } |
378cc40b | 3037 | goto retry; |
4fdae800 | 3038 | case '\r': |
6a27c188 | 3039 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 3040 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 3041 | Perl_croak(aTHX_ |
cc507455 | 3042 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 3043 | #endif |
4fdae800 | 3044 | case ' ': case '\t': case '\f': case 013: |
bf4acbe4 GS |
3045 | #ifdef MACOS_TRADITIONAL |
3046 | case '\312': | |
3047 | #endif | |
378cc40b LW |
3048 | s++; |
3049 | goto retry; | |
378cc40b | 3050 | case '#': |
e929a76b | 3051 | case '\n': |
3280af22 | 3052 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
3053 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
3054 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
3055 | CopLINE_dec(PL_curcop); | |
3056 | incline(s); | |
3057 | } | |
3280af22 | 3058 | d = PL_bufend; |
a687059c | 3059 | while (s < d && *s != '\n') |
378cc40b | 3060 | s++; |
0f85fab0 | 3061 | if (s < d) |
378cc40b | 3062 | s++; |
78c267c1 | 3063 | else if (s > d) /* Found by Ilya: feed random input to Perl. */ |
a8406387 | 3064 | Perl_croak(aTHX_ "panic: input overflow"); |
463ee0b2 | 3065 | incline(s); |
3280af22 NIS |
3066 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3067 | PL_bufptr = s; | |
3068 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3069 | return yylex(); |
a687059c | 3070 | } |
378cc40b | 3071 | } |
a687059c | 3072 | else { |
378cc40b | 3073 | *s = '\0'; |
3280af22 | 3074 | PL_bufend = s; |
a687059c | 3075 | } |
378cc40b LW |
3076 | goto retry; |
3077 | case '-': | |
79072805 | 3078 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 | 3079 | I32 ftst = 0; |
90771dc0 | 3080 | char tmp; |
e5edeb50 | 3081 | |
378cc40b | 3082 | s++; |
3280af22 | 3083 | PL_bufptr = s; |
748a9306 LW |
3084 | tmp = *s++; |
3085 | ||
bf4acbe4 | 3086 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
3087 | s++; |
3088 | ||
3089 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 3090 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
b6007c36 DM |
3091 | DEBUG_T( { S_printbuf(aTHX_ |
3092 | "### Saw unary minus before =>, forcing word %s\n", s); | |
5f80b19c | 3093 | } ); |
748a9306 LW |
3094 | OPERATOR('-'); /* unary minus */ |
3095 | } | |
3280af22 | 3096 | PL_last_uni = PL_oldbufptr; |
748a9306 | 3097 | switch (tmp) { |
e5edeb50 JH |
3098 | case 'r': ftst = OP_FTEREAD; break; |
3099 | case 'w': ftst = OP_FTEWRITE; break; | |
3100 | case 'x': ftst = OP_FTEEXEC; break; | |
3101 | case 'o': ftst = OP_FTEOWNED; break; | |
3102 | case 'R': ftst = OP_FTRREAD; break; | |
3103 | case 'W': ftst = OP_FTRWRITE; break; | |
3104 | case 'X': ftst = OP_FTREXEC; break; | |
3105 | case 'O': ftst = OP_FTROWNED; break; | |
3106 | case 'e': ftst = OP_FTIS; break; | |
3107 | case 'z': ftst = OP_FTZERO; break; | |
3108 | case 's': ftst = OP_FTSIZE; break; | |
3109 | case 'f': ftst = OP_FTFILE; break; | |
3110 | case 'd': ftst = OP_FTDIR; break; | |
3111 | case 'l': ftst = OP_FTLINK; break; | |
3112 | case 'p': ftst = OP_FTPIPE; break; | |
3113 | case 'S': ftst = OP_FTSOCK; break; | |
3114 | case 'u': ftst = OP_FTSUID; break; | |
3115 | case 'g': ftst = OP_FTSGID; break; | |
3116 | case 'k': ftst = OP_FTSVTX; break; | |
3117 | case 'b': ftst = OP_FTBLK; break; | |
3118 | case 'c': ftst = OP_FTCHR; break; | |
3119 | case 't': ftst = OP_FTTTY; break; | |
3120 | case 'T': ftst = OP_FTTEXT; break; | |
3121 | case 'B': ftst = OP_FTBINARY; break; | |
3122 | case 'M': case 'A': case 'C': | |
f776e3cd | 3123 | gv_fetchpv("\024",GV_ADD, SVt_PV); |
e5edeb50 JH |
3124 | switch (tmp) { |
3125 | case 'M': ftst = OP_FTMTIME; break; | |
3126 | case 'A': ftst = OP_FTATIME; break; | |
3127 | case 'C': ftst = OP_FTCTIME; break; | |
3128 | default: break; | |
3129 | } | |
3130 | break; | |
378cc40b | 3131 | default: |
378cc40b LW |
3132 | break; |
3133 | } | |
e5edeb50 | 3134 | if (ftst) { |
eb160463 | 3135 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 3136 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a18d764d | 3137 | "### Saw file test %c\n", (int)tmp); |
5f80b19c | 3138 | } ); |
e5edeb50 JH |
3139 | FTST(ftst); |
3140 | } | |
3141 | else { | |
3142 | /* Assume it was a minus followed by a one-letter named | |
3143 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 3144 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
17ad61e0 | 3145 | "### '-%c' looked like a file test but was not\n", |
4fccd7c6 | 3146 | (int) tmp); |
5f80b19c | 3147 | } ); |
3cf7b4c4 | 3148 | s = --PL_bufptr; |
e5edeb50 | 3149 | } |
378cc40b | 3150 | } |
90771dc0 NC |
3151 | { |
3152 | const char tmp = *s++; | |
3153 | if (*s == tmp) { | |
3154 | s++; | |
3155 | if (PL_expect == XOPERATOR) | |
3156 | TERM(POSTDEC); | |
3157 | else | |
3158 | OPERATOR(PREDEC); | |
3159 | } | |
3160 | else if (*s == '>') { | |
3161 | s++; | |
3162 | s = skipspace(s); | |
3163 | if (isIDFIRST_lazy_if(s,UTF)) { | |
3164 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); | |
3165 | TOKEN(ARROW); | |
3166 | } | |
3167 | else if (*s == '$') | |
3168 | OPERATOR(ARROW); | |
3169 | else | |
3170 | TERM(ARROW); | |
3171 | } | |
3280af22 | 3172 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
3173 | Aop(OP_SUBTRACT); |
3174 | else { | |
3175 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
3176 | check_uni(); | |
3177 | OPERATOR('-'); /* unary minus */ | |
79072805 | 3178 | } |
2f3197b3 | 3179 | } |
79072805 | 3180 | |
378cc40b | 3181 | case '+': |
90771dc0 NC |
3182 | { |
3183 | const char tmp = *s++; | |
3184 | if (*s == tmp) { | |
3185 | s++; | |
3186 | if (PL_expect == XOPERATOR) | |
3187 | TERM(POSTINC); | |
3188 | else | |
3189 | OPERATOR(PREINC); | |
3190 | } | |
3280af22 | 3191 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
3192 | Aop(OP_ADD); |
3193 | else { | |
3194 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
3195 | check_uni(); | |
3196 | OPERATOR('+'); | |
3197 | } | |
2f3197b3 | 3198 | } |
a687059c | 3199 | |
378cc40b | 3200 | case '*': |
3280af22 NIS |
3201 | if (PL_expect != XOPERATOR) { |
3202 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
3203 | PL_expect = XOPERATOR; | |
3204 | force_ident(PL_tokenbuf, '*'); | |
3205 | if (!*PL_tokenbuf) | |
a0d0e21e | 3206 | PREREF('*'); |
79072805 | 3207 | TERM('*'); |
a687059c | 3208 | } |
79072805 LW |
3209 | s++; |
3210 | if (*s == '*') { | |
a687059c | 3211 | s++; |
79072805 | 3212 | PWop(OP_POW); |
a687059c | 3213 | } |
79072805 LW |
3214 | Mop(OP_MULTIPLY); |
3215 | ||
378cc40b | 3216 | case '%': |
3280af22 | 3217 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 3218 | ++s; |
3219 | Mop(OP_MODULO); | |
a687059c | 3220 | } |
3280af22 NIS |
3221 | PL_tokenbuf[0] = '%'; |
3222 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, TRUE); | |
3223 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 3224 | PREREF('%'); |
a687059c | 3225 | } |
3280af22 | 3226 | PL_pending_ident = '%'; |
bbce6d69 | 3227 | TERM('%'); |
a687059c | 3228 | |
378cc40b | 3229 | case '^': |
79072805 | 3230 | s++; |
a0d0e21e | 3231 | BOop(OP_BIT_XOR); |
79072805 | 3232 | case '[': |
3280af22 | 3233 | PL_lex_brackets++; |
79072805 | 3234 | /* FALL THROUGH */ |
378cc40b | 3235 | case '~': |
0d863452 RH |
3236 | if (s[1] == '~' |
3237 | && (PL_expect == XOPERATOR || PL_expect == XTERMORDORDOR) | |
ef89dcc3 | 3238 | && FEATURE_IS_ENABLED("~~")) |
0d863452 RH |
3239 | { |
3240 | s += 2; | |
3241 | Eop(OP_SMARTMATCH); | |
3242 | } | |
378cc40b | 3243 | case ',': |
90771dc0 NC |
3244 | { |
3245 | const char tmp = *s++; | |
3246 | OPERATOR(tmp); | |
3247 | } | |
a0d0e21e LW |
3248 | case ':': |
3249 | if (s[1] == ':') { | |
3250 | len = 0; | |
0bfa2a8a | 3251 | goto just_a_word_zero_gv; |
a0d0e21e LW |
3252 | } |
3253 | s++; | |
09bef843 SB |
3254 | switch (PL_expect) { |
3255 | OP *attrs; | |
3256 | case XOPERATOR: | |
3257 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
3258 | break; | |
3259 | PL_bufptr = s; /* update in case we back off */ | |
3260 | goto grabattrs; | |
3261 | case XATTRBLOCK: | |
3262 | PL_expect = XBLOCK; | |
3263 | goto grabattrs; | |
3264 | case XATTRTERM: | |
3265 | PL_expect = XTERMBLOCK; | |
3266 | grabattrs: | |
3267 | s = skipspace(s); | |
3268 | attrs = Nullop; | |
7e2040f0 | 3269 | while (isIDFIRST_lazy_if(s,UTF)) { |
90771dc0 | 3270 | I32 tmp; |
09bef843 | 3271 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
f9829d6b GS |
3272 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len))) { |
3273 | if (tmp < 0) tmp = -tmp; | |
3274 | switch (tmp) { | |
3275 | case KEY_or: | |
3276 | case KEY_and: | |
c963b151 | 3277 | case KEY_err: |
f9829d6b GS |
3278 | case KEY_for: |
3279 | case KEY_unless: | |
3280 | case KEY_if: | |
3281 | case KEY_while: | |
3282 | case KEY_until: | |
3283 | goto got_attrs; | |
3284 | default: | |
3285 | break; | |
3286 | } | |
3287 | } | |
09bef843 SB |
3288 | if (*d == '(') { |
3289 | d = scan_str(d,TRUE,TRUE); | |
3290 | if (!d) { | |
09bef843 SB |
3291 | /* MUST advance bufptr here to avoid bogus |
3292 | "at end of line" context messages from yyerror(). | |
3293 | */ | |
3294 | PL_bufptr = s + len; | |
3295 | yyerror("Unterminated attribute parameter in attribute list"); | |
3296 | if (attrs) | |
3297 | op_free(attrs); | |
bbf60fe6 | 3298 | return REPORT(0); /* EOF indicator */ |
09bef843 SB |
3299 | } |
3300 | } | |
3301 | if (PL_lex_stuff) { | |
3302 | SV *sv = newSVpvn(s, len); | |
3303 | sv_catsv(sv, PL_lex_stuff); | |
3304 | attrs = append_elem(OP_LIST, attrs, | |
3305 | newSVOP(OP_CONST, 0, sv)); | |
3306 | SvREFCNT_dec(PL_lex_stuff); | |
3307 | PL_lex_stuff = Nullsv; | |
3308 | } | |
3309 | else { | |
371fce9b DM |
3310 | if (len == 6 && strnEQ(s, "unique", len)) { |
3311 | if (PL_in_my == KEY_our) | |
3312 | #ifdef USE_ITHREADS | |
3313 | GvUNIQUE_on(cGVOPx_gv(yylval.opval)); | |
3314 | #else | |
3315 | ; /* skip to avoid loading attributes.pm */ | |
3316 | #endif | |
bfed75c6 | 3317 | else |
371fce9b DM |
3318 | Perl_croak(aTHX_ "The 'unique' attribute may only be applied to 'our' variables"); |
3319 | } | |
3320 | ||
d3cea301 SB |
3321 | /* NOTE: any CV attrs applied here need to be part of |
3322 | the CVf_BUILTIN_ATTRS define in cv.h! */ | |
371fce9b | 3323 | else if (!PL_in_my && len == 6 && strnEQ(s, "lvalue", len)) |
78f9721b SM |
3324 | CvLVALUE_on(PL_compcv); |
3325 | else if (!PL_in_my && len == 6 && strnEQ(s, "locked", len)) | |
3326 | CvLOCKED_on(PL_compcv); | |
3327 | else if (!PL_in_my && len == 6 && strnEQ(s, "method", len)) | |
3328 | CvMETHOD_on(PL_compcv); | |
06492da6 SF |
3329 | else if (!PL_in_my && len == 9 && strnEQ(s, "assertion", len)) |
3330 | CvASSERTION_on(PL_compcv); | |
78f9721b SM |
3331 | /* After we've set the flags, it could be argued that |
3332 | we don't need to do the attributes.pm-based setting | |
3333 | process, and shouldn't bother appending recognized | |
d3cea301 SB |
3334 | flags. To experiment with that, uncomment the |
3335 | following "else". (Note that's already been | |
3336 | uncommented. That keeps the above-applied built-in | |
3337 | attributes from being intercepted (and possibly | |
3338 | rejected) by a package's attribute routines, but is | |
3339 | justified by the performance win for the common case | |
3340 | of applying only built-in attributes.) */ | |
0256094b | 3341 | else |
78f9721b SM |
3342 | attrs = append_elem(OP_LIST, attrs, |
3343 | newSVOP(OP_CONST, 0, | |
3344 | newSVpvn(s, len))); | |
09bef843 SB |
3345 | } |
3346 | s = skipspace(d); | |
0120eecf | 3347 | if (*s == ':' && s[1] != ':') |
09bef843 | 3348 | s = skipspace(s+1); |
0120eecf GS |
3349 | else if (s == d) |
3350 | break; /* require real whitespace or :'s */ | |
09bef843 | 3351 | } |
90771dc0 NC |
3352 | { |
3353 | const char tmp | |
3354 | = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ | |
3355 | if (*s != ';' && *s != '}' && *s != tmp | |
3356 | && (tmp != '=' || *s != ')')) { | |
3357 | const char q = ((*s == '\'') ? '"' : '\''); | |
3358 | /* If here for an expression, and parsed no attrs, back | |
3359 | off. */ | |
3360 | if (tmp == '=' && !attrs) { | |
3361 | s = PL_bufptr; | |
3362 | break; | |
3363 | } | |
3364 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
3365 | context messages from yyerror(). | |
3366 | */ | |
3367 | PL_bufptr = s; | |
3368 | yyerror( *s | |
3369 | ? Perl_form(aTHX_ "Invalid separator character " | |
3370 | "%c%c%c in attribute list", q, *s, q) | |
3371 | : "Unterminated attribute list" ); | |
3372 | if (attrs) | |
3373 | op_free(attrs); | |
3374 | OPERATOR(':'); | |
09bef843 | 3375 | } |
09bef843 | 3376 | } |
f9829d6b | 3377 | got_attrs: |
09bef843 SB |
3378 | if (attrs) { |
3379 | PL_nextval[PL_nexttoke].opval = attrs; | |
3380 | force_next(THING); | |
3381 | } | |
3382 | TOKEN(COLONATTR); | |
3383 | } | |
a0d0e21e | 3384 | OPERATOR(':'); |
8990e307 LW |
3385 | case '(': |
3386 | s++; | |
3280af22 NIS |
3387 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
3388 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 3389 | else |
3280af22 | 3390 | PL_expect = XTERM; |
4a202259 | 3391 | s = skipspace(s); |
a0d0e21e | 3392 | TOKEN('('); |
378cc40b | 3393 | case ';': |
f4dd75d9 | 3394 | CLINE; |
90771dc0 NC |
3395 | { |
3396 | const char tmp = *s++; | |
3397 | OPERATOR(tmp); | |
3398 | } | |
378cc40b | 3399 | case ')': |
90771dc0 NC |
3400 | { |
3401 | const char tmp = *s++; | |
3402 | s = skipspace(s); | |
3403 | if (*s == '{') | |
3404 | PREBLOCK(tmp); | |
3405 | TERM(tmp); | |
3406 | } | |
79072805 LW |
3407 | case ']': |
3408 | s++; | |
3280af22 | 3409 | if (PL_lex_brackets <= 0) |
d98d5fff | 3410 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 3411 | else |
3280af22 NIS |
3412 | --PL_lex_brackets; |
3413 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
3414 | if (PL_lex_brackets == 0) { | |
a0d0e21e | 3415 | if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>')) |
3280af22 | 3416 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
3417 | } |
3418 | } | |
4633a7c4 | 3419 | TERM(']'); |
79072805 LW |
3420 | case '{': |
3421 | leftbracket: | |
79072805 | 3422 | s++; |
3280af22 | 3423 | if (PL_lex_brackets > 100) { |
8edd5f42 | 3424 | Renew(PL_lex_brackstack, PL_lex_brackets + 10, char); |
8990e307 | 3425 | } |
3280af22 | 3426 | switch (PL_expect) { |
a0d0e21e | 3427 | case XTERM: |
3280af22 | 3428 | if (PL_lex_formbrack) { |
a0d0e21e LW |
3429 | s--; |
3430 | PRETERMBLOCK(DO); | |
3431 | } | |
3280af22 NIS |
3432 | if (PL_oldoldbufptr == PL_last_lop) |
3433 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 3434 | else |
3280af22 | 3435 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 3436 | OPERATOR(HASHBRACK); |
a0d0e21e | 3437 | case XOPERATOR: |
bf4acbe4 | 3438 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 3439 | s++; |
44a8e56a | 3440 | d = s; |
3280af22 NIS |
3441 | PL_tokenbuf[0] = '\0'; |
3442 | if (d < PL_bufend && *d == '-') { | |
3443 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 3444 | d++; |
bf4acbe4 | 3445 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 3446 | d++; |
3447 | } | |
7e2040f0 | 3448 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 3449 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 3450 | FALSE, &len); |
bf4acbe4 | 3451 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
3452 | d++; |
3453 | if (*d == '}') { | |
f54cb97a | 3454 | const char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 3455 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
3456 | if (minus) | |
3457 | force_next('-'); | |
748a9306 LW |
3458 | } |
3459 | } | |
3460 | /* FALL THROUGH */ | |
09bef843 | 3461 | case XATTRBLOCK: |
748a9306 | 3462 | case XBLOCK: |
3280af22 NIS |
3463 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
3464 | PL_expect = XSTATE; | |
a0d0e21e | 3465 | break; |
09bef843 | 3466 | case XATTRTERM: |
a0d0e21e | 3467 | case XTERMBLOCK: |
3280af22 NIS |
3468 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
3469 | PL_expect = XSTATE; | |
a0d0e21e LW |
3470 | break; |
3471 | default: { | |
f54cb97a | 3472 | const char *t; |
3280af22 NIS |
3473 | if (PL_oldoldbufptr == PL_last_lop) |
3474 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 3475 | else |
3280af22 | 3476 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
a0d0e21e | 3477 | s = skipspace(s); |
8452ff4b SB |
3478 | if (*s == '}') { |
3479 | if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) { | |
3480 | PL_expect = XTERM; | |
3481 | /* This hack is to get the ${} in the message. */ | |
3482 | PL_bufptr = s+1; | |
3483 | yyerror("syntax error"); | |
3484 | break; | |
3485 | } | |
a0d0e21e | 3486 | OPERATOR(HASHBRACK); |
8452ff4b | 3487 | } |
b8a4b1be GS |
3488 | /* This hack serves to disambiguate a pair of curlies |
3489 | * as being a block or an anon hash. Normally, expectation | |
3490 | * determines that, but in cases where we're not in a | |
3491 | * position to expect anything in particular (like inside | |
3492 | * eval"") we have to resolve the ambiguity. This code | |
3493 | * covers the case where the first term in the curlies is a | |
3494 | * quoted string. Most other cases need to be explicitly | |
a0288114 | 3495 | * disambiguated by prepending a "+" before the opening |
b8a4b1be GS |
3496 | * curly in order to force resolution as an anon hash. |
3497 | * | |
3498 | * XXX should probably propagate the outer expectation | |
3499 | * into eval"" to rely less on this hack, but that could | |
3500 | * potentially break current behavior of eval"". | |
3501 | * GSAR 97-07-21 | |
3502 | */ | |
3503 | t = s; | |
3504 | if (*s == '\'' || *s == '"' || *s == '`') { | |
3505 | /* common case: get past first string, handling escapes */ | |
3280af22 | 3506 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
3507 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
3508 | t++; | |
3509 | t++; | |
a0d0e21e | 3510 | } |
b8a4b1be | 3511 | else if (*s == 'q') { |
3280af22 | 3512 | if (++t < PL_bufend |
b8a4b1be | 3513 | && (!isALNUM(*t) |
3280af22 | 3514 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
3515 | && !isALNUM(*t)))) |
3516 | { | |
abc667d1 | 3517 | /* skip q//-like construct */ |
f54cb97a | 3518 | const char *tmps; |
b8a4b1be GS |
3519 | char open, close, term; |
3520 | I32 brackets = 1; | |
3521 | ||
3280af22 | 3522 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be | 3523 | t++; |
abc667d1 DM |
3524 | /* check for q => */ |
3525 | if (t+1 < PL_bufend && t[0] == '=' && t[1] == '>') { | |
3526 | OPERATOR(HASHBRACK); | |
3527 | } | |
b8a4b1be GS |
3528 | term = *t; |
3529 | open = term; | |
3530 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
3531 | term = tmps[5]; | |
3532 | close = term; | |
3533 | if (open == close) | |
3280af22 NIS |
3534 | for (t++; t < PL_bufend; t++) { |
3535 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 3536 | t++; |
6d07e5e9 | 3537 | else if (*t == open) |
b8a4b1be GS |
3538 | break; |
3539 | } | |
abc667d1 | 3540 | else { |
3280af22 NIS |
3541 | for (t++; t < PL_bufend; t++) { |
3542 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 3543 | t++; |
6d07e5e9 | 3544 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
3545 | break; |
3546 | else if (*t == open) | |
3547 | brackets++; | |
3548 | } | |
abc667d1 DM |
3549 | } |
3550 | t++; | |
b8a4b1be | 3551 | } |
abc667d1 DM |
3552 | else |
3553 | /* skip plain q word */ | |
3554 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) | |
3555 | t += UTF8SKIP(t); | |
a0d0e21e | 3556 | } |
7e2040f0 | 3557 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 3558 | t += UTF8SKIP(t); |
7e2040f0 | 3559 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 3560 | t += UTF8SKIP(t); |
a0d0e21e | 3561 | } |
3280af22 | 3562 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 3563 | t++; |
b8a4b1be GS |
3564 | /* if comma follows first term, call it an anon hash */ |
3565 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 3566 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 3567 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 3568 | OPERATOR(HASHBRACK); |
3280af22 | 3569 | if (PL_expect == XREF) |
4e4e412b | 3570 | PL_expect = XTERM; |
a0d0e21e | 3571 | else { |
3280af22 NIS |
3572 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
3573 | PL_expect = XSTATE; | |
a0d0e21e | 3574 | } |
8990e307 | 3575 | } |
a0d0e21e | 3576 | break; |
463ee0b2 | 3577 | } |
57843af0 | 3578 | yylval.ival = CopLINE(PL_curcop); |
79072805 | 3579 | if (isSPACE(*s) || *s == '#') |
3280af22 | 3580 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 3581 | TOKEN('{'); |
378cc40b | 3582 | case '}': |
79072805 LW |
3583 | rightbracket: |
3584 | s++; | |
3280af22 | 3585 | if (PL_lex_brackets <= 0) |
d98d5fff | 3586 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 3587 | else |
3280af22 | 3588 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 3589 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
3590 | PL_lex_formbrack = 0; |
3591 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
3592 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
3593 | if (PL_expect & XFAKEBRACK) { |
3594 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
3595 | PL_lex_state = LEX_INTERPEND; |
3596 | PL_bufptr = s; | |
cea2e8a9 | 3597 | return yylex(); /* ignore fake brackets */ |
79072805 | 3598 | } |
fa83b5b6 | 3599 | if (*s == '-' && s[1] == '>') |
3280af22 | 3600 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 3601 | else if (*s != '[' && *s != '{') |
3280af22 | 3602 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
3603 | } |
3604 | } | |
9059aa12 LW |
3605 | if (PL_expect & XFAKEBRACK) { |
3606 | PL_expect &= XENUMMASK; | |
3280af22 | 3607 | PL_bufptr = s; |
cea2e8a9 | 3608 | return yylex(); /* ignore fake brackets */ |
748a9306 | 3609 | } |
79072805 LW |
3610 | force_next('}'); |
3611 | TOKEN(';'); | |
378cc40b LW |
3612 | case '&': |
3613 | s++; | |
90771dc0 | 3614 | if (*s++ == '&') |
a0d0e21e | 3615 | AOPERATOR(ANDAND); |
378cc40b | 3616 | s--; |
3280af22 | 3617 | if (PL_expect == XOPERATOR) { |
041457d9 DM |
3618 | if (PL_bufptr == PL_linestart && ckWARN(WARN_SEMICOLON) |
3619 | && isIDFIRST_lazy_if(s,UTF)) | |
7e2040f0 | 3620 | { |
57843af0 | 3621 | CopLINE_dec(PL_curcop); |
9014280d | 3622 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 3623 | CopLINE_inc(PL_curcop); |
463ee0b2 | 3624 | } |
79072805 | 3625 | BAop(OP_BIT_AND); |
463ee0b2 | 3626 | } |
79072805 | 3627 | |
3280af22 NIS |
3628 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
3629 | if (*PL_tokenbuf) { | |
3630 | PL_expect = XOPERATOR; | |
3631 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 3632 | } |
79072805 LW |
3633 | else |
3634 | PREREF('&'); | |
c07a80fd | 3635 | yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
3636 | TERM('&'); |
3637 | ||
378cc40b LW |
3638 | case '|': |
3639 | s++; | |
90771dc0 | 3640 | if (*s++ == '|') |
a0d0e21e | 3641 | AOPERATOR(OROR); |
378cc40b | 3642 | s--; |
79072805 | 3643 | BOop(OP_BIT_OR); |
378cc40b LW |
3644 | case '=': |
3645 | s++; | |
748a9306 | 3646 | { |
90771dc0 NC |
3647 | const char tmp = *s++; |
3648 | if (tmp == '=') | |
3649 | Eop(OP_EQ); | |
3650 | if (tmp == '>') | |
3651 | OPERATOR(','); | |
3652 | if (tmp == '~') | |
3653 | PMop(OP_MATCH); | |
3654 | if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX) | |
3655 | && strchr("+-*/%.^&|<",tmp)) | |
3656 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
3657 | "Reversed %c= operator",(int)tmp); | |
3658 | s--; | |
3659 | if (PL_expect == XSTATE && isALPHA(tmp) && | |
3660 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
3661 | { | |
3662 | if (PL_in_eval && !PL_rsfp) { | |
3663 | d = PL_bufend; | |
3664 | while (s < d) { | |
3665 | if (*s++ == '\n') { | |
3666 | incline(s); | |
3667 | if (strnEQ(s,"=cut",4)) { | |
3668 | s = strchr(s,'\n'); | |
3669 | if (s) | |
3670 | s++; | |
3671 | else | |
3672 | s = d; | |
3673 | incline(s); | |
3674 | goto retry; | |
3675 | } | |
3676 | } | |
a5f75d66 | 3677 | } |
90771dc0 | 3678 | goto retry; |
a5f75d66 | 3679 | } |
90771dc0 NC |
3680 | s = PL_bufend; |
3681 | PL_doextract = TRUE; | |
3682 | goto retry; | |
a5f75d66 | 3683 | } |
a0d0e21e | 3684 | } |
3280af22 | 3685 | if (PL_lex_brackets < PL_lex_formbrack) { |
f54cb97a | 3686 | const char *t; |
51882d45 | 3687 | #ifdef PERL_STRICT_CR |
bf4acbe4 | 3688 | for (t = s; SPACE_OR_TAB(*t); t++) ; |
51882d45 | 3689 | #else |
bf4acbe4 | 3690 | for (t = s; SPACE_OR_TAB(*t) || *t == '\r'; t++) ; |
51882d45 | 3691 | #endif |
a0d0e21e LW |
3692 | if (*t == '\n' || *t == '#') { |
3693 | s--; | |
3280af22 | 3694 | PL_expect = XBLOCK; |
a0d0e21e LW |
3695 | goto leftbracket; |
3696 | } | |
79072805 | 3697 | } |
a0d0e21e LW |
3698 | yylval.ival = 0; |
3699 | OPERATOR(ASSIGNOP); | |
378cc40b LW |
3700 | case '!': |
3701 | s++; | |
90771dc0 NC |
3702 | { |
3703 | const char tmp = *s++; | |
3704 | if (tmp == '=') { | |
3705 | /* was this !=~ where !~ was meant? | |
3706 | * warn on m:!=~\s+([/?]|[msy]\W|tr\W): */ | |
3707 | ||
3708 | if (*s == '~' && ckWARN(WARN_SYNTAX)) { | |
3709 | const char *t = s+1; | |
3710 | ||
3711 | while (t < PL_bufend && isSPACE(*t)) | |
3712 | ++t; | |
3713 | ||
3714 | if (*t == '/' || *t == '?' || | |
3715 | ((*t == 'm' || *t == 's' || *t == 'y') | |
3716 | && !isALNUM(t[1])) || | |
3717 | (*t == 't' && t[1] == 'r' && !isALNUM(t[2]))) | |
3718 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
3719 | "!=~ should be !~"); | |
3720 | } | |
3721 | Eop(OP_NE); | |
3722 | } | |
3723 | if (tmp == '~') | |
3724 | PMop(OP_NOT); | |
3725 | } | |
378cc40b LW |
3726 | s--; |
3727 | OPERATOR('!'); | |
3728 | case '<': | |
3280af22 | 3729 | if (PL_expect != XOPERATOR) { |
93a17b20 | 3730 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 3731 | check_uni(); |
79072805 LW |
3732 | if (s[1] == '<') |
3733 | s = scan_heredoc(s); | |
3734 | else | |
3735 | s = scan_inputsymbol(s); | |
3736 | TERM(sublex_start()); | |
378cc40b LW |
3737 | } |
3738 | s++; | |
90771dc0 NC |
3739 | { |
3740 | char tmp = *s++; | |
3741 | if (tmp == '<') | |
3742 | SHop(OP_LEFT_SHIFT); | |
3743 | if (tmp == '=') { | |
3744 | tmp = *s++; | |
3745 | if (tmp == '>') | |
3746 | Eop(OP_NCMP); | |
3747 | s--; | |
3748 | Rop(OP_LE); | |
3749 | } | |
395c3793 | 3750 | } |
378cc40b | 3751 | s--; |
79072805 | 3752 | Rop(OP_LT); |
378cc40b LW |
3753 | case '>': |
3754 | s++; | |
90771dc0 NC |
3755 | { |
3756 | const char tmp = *s++; | |
3757 | if (tmp == '>') | |
3758 | SHop(OP_RIGHT_SHIFT); | |
3759 | if (tmp == '=') | |
3760 | Rop(OP_GE); | |
3761 | } | |
378cc40b | 3762 | s--; |
79072805 | 3763 | Rop(OP_GT); |
378cc40b LW |
3764 | |
3765 | case '$': | |
bbce6d69 | 3766 | CLINE; |
3767 | ||
3280af22 NIS |
3768 | if (PL_expect == XOPERATOR) { |
3769 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
3770 | PL_expect = XTERM; | |
c445ea15 | 3771 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 3772 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 3773 | } |
8990e307 | 3774 | } |
a0d0e21e | 3775 | |
7e2040f0 | 3776 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-", s[2]))) { |
3280af22 | 3777 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
3778 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
3779 | sizeof PL_tokenbuf - 1, FALSE); | |
3780 | if (PL_expect == XOPERATOR) | |
3781 | no_op("Array length", s); | |
3280af22 | 3782 | if (!PL_tokenbuf[1]) |
a0d0e21e | 3783 | PREREF(DOLSHARP); |
3280af22 NIS |
3784 | PL_expect = XOPERATOR; |
3785 | PL_pending_ident = '#'; | |
463ee0b2 | 3786 | TOKEN(DOLSHARP); |
79072805 | 3787 | } |
bbce6d69 | 3788 | |
3280af22 | 3789 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
3790 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
3791 | sizeof PL_tokenbuf - 1, FALSE); | |
3792 | if (PL_expect == XOPERATOR) | |
3793 | no_op("Scalar", s); | |
3280af22 NIS |
3794 | if (!PL_tokenbuf[1]) { |
3795 | if (s == PL_bufend) | |
bbce6d69 | 3796 | yyerror("Final $ should be \\$ or $name"); |
3797 | PREREF('$'); | |
8990e307 | 3798 | } |
a0d0e21e | 3799 | |
bbce6d69 | 3800 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 3801 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
bbce6d69 | 3802 | yylval.opval = newSVOP(OP_CONST, 0, |
b448e4fe | 3803 | newSViv(PL_compiling.cop_arybase)); |
bbce6d69 | 3804 | yylval.opval->op_private = OPpCONST_ARYBASE; |
3805 | TERM(THING); | |
3806 | } | |
3807 | ||
ff68c719 | 3808 | d = s; |
90771dc0 NC |
3809 | { |
3810 | const char tmp = *s; | |
3811 | if (PL_lex_state == LEX_NORMAL) | |
3812 | s = skipspace(s); | |
ff68c719 | 3813 | |
90771dc0 NC |
3814 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) |
3815 | && intuit_more(s)) { | |
3816 | if (*s == '[') { | |
3817 | PL_tokenbuf[0] = '@'; | |
3818 | if (ckWARN(WARN_SYNTAX)) { | |
3819 | char *t; | |
3820 | for(t = s + 1; | |
3821 | isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$'; | |
3822 | t++) ; | |
3823 | if (*t++ == ',') { | |
3824 | PL_bufptr = skipspace(PL_bufptr); | |
3825 | while (t < PL_bufend && *t != ']') | |
3826 | t++; | |
9014280d | 3827 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
90771dc0 | 3828 | "Multidimensional syntax %.*s not supported", |
36c7798d | 3829 | (int)((t - PL_bufptr) + 1), PL_bufptr); |
90771dc0 | 3830 | } |
748a9306 | 3831 | } |
93a17b20 | 3832 | } |
90771dc0 NC |
3833 | else if (*s == '{') { |
3834 | char *t; | |
3835 | PL_tokenbuf[0] = '%'; | |
3836 | if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX) | |
3837 | && (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
3838 | { | |
3839 | char tmpbuf[sizeof PL_tokenbuf]; | |
3840 | for (t++; isSPACE(*t); t++) ; | |
3841 | if (isIDFIRST_lazy_if(t,UTF)) { | |
3842 | STRLEN len; | |
3843 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, | |
3844 | &len); | |
3845 | for (; isSPACE(*t); t++) ; | |
3846 | if (*t == ';' && get_cv(tmpbuf, FALSE)) | |
3847 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
3848 | "You need to quote \"%s\"", | |
3849 | tmpbuf); | |
3850 | } | |
3851 | } | |
3852 | } | |
93a17b20 | 3853 | } |
bbce6d69 | 3854 | |
90771dc0 NC |
3855 | PL_expect = XOPERATOR; |
3856 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { | |
3857 | const bool islop = (PL_last_lop == PL_oldoldbufptr); | |
3858 | if (!islop || PL_last_lop_op == OP_GREPSTART) | |
3859 | PL_expect = XOPERATOR; | |
3860 | else if (strchr("$@\"'`q", *s)) | |
3861 | PL_expect = XTERM; /* e.g. print $fh "foo" */ | |
3862 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) | |
3863 | PL_expect = XTERM; /* e.g. print $fh &sub */ | |
3864 | else if (isIDFIRST_lazy_if(s,UTF)) { | |
3865 | char tmpbuf[sizeof PL_tokenbuf]; | |
3866 | int t2; | |
3867 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
3868 | if ((t2 = keyword(tmpbuf, len))) { | |
3869 | /* binary operators exclude handle interpretations */ | |
3870 | switch (t2) { | |
3871 | case -KEY_x: | |
3872 | case -KEY_eq: | |
3873 | case -KEY_ne: | |
3874 | case -KEY_gt: | |
3875 | case -KEY_lt: | |
3876 | case -KEY_ge: | |
3877 | case -KEY_le: | |
3878 | case -KEY_cmp: | |
3879 | break; | |
3880 | default: | |
3881 | PL_expect = XTERM; /* e.g. print $fh length() */ | |
3882 | break; | |
3883 | } | |
3884 | } | |
3885 | else { | |
3886 | PL_expect = XTERM; /* e.g. print $fh subr() */ | |
84902520 TB |
3887 | } |
3888 | } | |
90771dc0 NC |
3889 | else if (isDIGIT(*s)) |
3890 | PL_expect = XTERM; /* e.g. print $fh 3 */ | |
3891 | else if (*s == '.' && isDIGIT(s[1])) | |
3892 | PL_expect = XTERM; /* e.g. print $fh .3 */ | |
3893 | else if ((*s == '?' || *s == '-' || *s == '+') | |
3894 | && !isSPACE(s[1]) && s[1] != '=') | |
3895 | PL_expect = XTERM; /* e.g. print $fh -1 */ | |
3896 | else if (*s == '/' && !isSPACE(s[1]) && s[1] != '=' | |
3897 | && s[1] != '/') | |
3898 | PL_expect = XTERM; /* e.g. print $fh /.../ | |
3899 | XXX except DORDOR operator | |
3900 | */ | |
3901 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) | |
3902 | && s[2] != '=') | |
3903 | PL_expect = XTERM; /* print $fh <<"EOF" */ | |
93a17b20 | 3904 | } |
bbce6d69 | 3905 | } |
3280af22 | 3906 | PL_pending_ident = '$'; |
79072805 | 3907 | TOKEN('$'); |
378cc40b LW |
3908 | |
3909 | case '@': | |
3280af22 | 3910 | if (PL_expect == XOPERATOR) |
bbce6d69 | 3911 | no_op("Array", s); |
3280af22 NIS |
3912 | PL_tokenbuf[0] = '@'; |
3913 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
3914 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 3915 | PREREF('@'); |
3916 | } | |
3280af22 | 3917 | if (PL_lex_state == LEX_NORMAL) |
ff68c719 | 3918 | s = skipspace(s); |
3280af22 | 3919 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 3920 | if (*s == '{') |
3280af22 | 3921 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
3922 | |
3923 | /* Warn about @ where they meant $. */ | |
041457d9 DM |
3924 | if (*s == '[' || *s == '{') { |
3925 | if (ckWARN(WARN_SYNTAX)) { | |
f54cb97a | 3926 | const char *t = s + 1; |
7e2040f0 | 3927 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
3928 | t++; |
3929 | if (*t == '}' || *t == ']') { | |
3930 | t++; | |
3280af22 | 3931 | PL_bufptr = skipspace(PL_bufptr); |
9014280d | 3932 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 3933 | "Scalar value %.*s better written as $%.*s", |
36c7798d DM |
3934 | (int)(t-PL_bufptr), PL_bufptr, |
3935 | (int)(t-PL_bufptr-1), PL_bufptr+1); | |
a0d0e21e | 3936 | } |
93a17b20 LW |
3937 | } |
3938 | } | |
463ee0b2 | 3939 | } |
3280af22 | 3940 | PL_pending_ident = '@'; |
79072805 | 3941 | TERM('@'); |
378cc40b | 3942 | |
c963b151 | 3943 | case '/': /* may be division, defined-or, or pattern */ |
6f33ba73 RGS |
3944 | if (PL_expect == XTERMORDORDOR && s[1] == '/') { |
3945 | s += 2; | |
3946 | AOPERATOR(DORDOR); | |
3947 | } | |
c963b151 BD |
3948 | case '?': /* may either be conditional or pattern */ |
3949 | if(PL_expect == XOPERATOR) { | |
90771dc0 | 3950 | char tmp = *s++; |
c963b151 BD |
3951 | if(tmp == '?') { |
3952 | OPERATOR('?'); | |
3953 | } | |
3954 | else { | |
3955 | tmp = *s++; | |
3956 | if(tmp == '/') { | |
3957 | /* A // operator. */ | |
3958 | AOPERATOR(DORDOR); | |
3959 | } | |
3960 | else { | |
3961 | s--; | |
3962 | Mop(OP_DIVIDE); | |
3963 | } | |
3964 | } | |
3965 | } | |
3966 | else { | |
3967 | /* Disable warning on "study /blah/" */ | |
3968 | if (PL_oldoldbufptr == PL_last_uni | |
3969 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
3970 | || memNE(PL_last_uni, "study", 5) | |
3971 | || isALNUM_lazy_if(PL_last_uni+5,UTF) | |
3972 | )) | |
3973 | check_uni(); | |
3974 | s = scan_pat(s,OP_MATCH); | |
3975 | TERM(sublex_start()); | |
3976 | } | |
378cc40b LW |
3977 | |
3978 | case '.': | |
51882d45 GS |
3979 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
3980 | #ifdef PERL_STRICT_CR | |
3981 | && s[1] == '\n' | |
3982 | #else | |
3983 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
3984 | #endif | |
3985 | && (s == PL_linestart || s[-1] == '\n') ) | |
3986 | { | |
3280af22 NIS |
3987 | PL_lex_formbrack = 0; |
3988 | PL_expect = XSTATE; | |
79072805 LW |
3989 | goto rightbracket; |
3990 | } | |
3280af22 | 3991 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
90771dc0 | 3992 | char tmp = *s++; |
a687059c LW |
3993 | if (*s == tmp) { |
3994 | s++; | |
2f3197b3 LW |
3995 | if (*s == tmp) { |
3996 | s++; | |
79072805 | 3997 | yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
3998 | } |
3999 | else | |
79072805 | 4000 | yylval.ival = 0; |
378cc40b | 4001 | OPERATOR(DOTDOT); |
a687059c | 4002 | } |
3280af22 | 4003 | if (PL_expect != XOPERATOR) |
2f3197b3 | 4004 | check_uni(); |
79072805 | 4005 | Aop(OP_CONCAT); |
378cc40b LW |
4006 | } |
4007 | /* FALL THROUGH */ | |
4008 | case '0': case '1': case '2': case '3': case '4': | |
4009 | case '5': case '6': case '7': case '8': case '9': | |
b73d6f50 | 4010 | s = scan_num(s, &yylval); |
b6007c36 | 4011 | DEBUG_T( { S_printbuf(aTHX_ "### Saw number in %s\n", s); } ); |
3280af22 | 4012 | if (PL_expect == XOPERATOR) |
8990e307 | 4013 | no_op("Number",s); |
79072805 LW |
4014 | TERM(THING); |
4015 | ||
4016 | case '\'': | |
09bef843 | 4017 | s = scan_str(s,FALSE,FALSE); |
b6007c36 | 4018 | DEBUG_T( { S_printbuf(aTHX_ "### Saw string before %s\n", s); } ); |
3280af22 NIS |
4019 | if (PL_expect == XOPERATOR) { |
4020 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4021 | PL_expect = XTERM; | |
c445ea15 | 4022 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4023 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4024 | } |
463ee0b2 | 4025 | else |
8990e307 | 4026 | no_op("String",s); |
463ee0b2 | 4027 | } |
79072805 | 4028 | if (!s) |
85e6fe83 | 4029 | missingterm((char*)0); |
79072805 LW |
4030 | yylval.ival = OP_CONST; |
4031 | TERM(sublex_start()); | |
4032 | ||
4033 | case '"': | |
09bef843 | 4034 | s = scan_str(s,FALSE,FALSE); |
b6007c36 | 4035 | DEBUG_T( { S_printbuf(aTHX_ "### Saw string before %s\n", s); } ); |
3280af22 NIS |
4036 | if (PL_expect == XOPERATOR) { |
4037 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4038 | PL_expect = XTERM; | |
c445ea15 | 4039 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4040 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4041 | } |
463ee0b2 | 4042 | else |
8990e307 | 4043 | no_op("String",s); |
463ee0b2 | 4044 | } |
79072805 | 4045 | if (!s) |
85e6fe83 | 4046 | missingterm((char*)0); |
4633a7c4 | 4047 | yylval.ival = OP_CONST; |
cfd0369c NC |
4048 | /* FIXME. I think that this can be const if char *d is replaced by |
4049 | more localised variables. */ | |
3280af22 | 4050 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
63cd0674 | 4051 | if (*d == '$' || *d == '@' || *d == '\\' || !UTF8_IS_INVARIANT((U8)*d)) { |
4633a7c4 LW |
4052 | yylval.ival = OP_STRINGIFY; |
4053 | break; | |
4054 | } | |
4055 | } | |
79072805 LW |
4056 | TERM(sublex_start()); |
4057 | ||
4058 | case '`': | |
09bef843 | 4059 | s = scan_str(s,FALSE,FALSE); |
b6007c36 | 4060 | DEBUG_T( { S_printbuf(aTHX_ "### Saw backtick string before %s\n", s); } ); |
3280af22 | 4061 | if (PL_expect == XOPERATOR) |
8990e307 | 4062 | no_op("Backticks",s); |
79072805 | 4063 | if (!s) |
85e6fe83 | 4064 | missingterm((char*)0); |
79072805 LW |
4065 | yylval.ival = OP_BACKTICK; |
4066 | set_csh(); | |
4067 | TERM(sublex_start()); | |
4068 | ||
4069 | case '\\': | |
4070 | s++; | |
041457d9 | 4071 | if (PL_lex_inwhat && isDIGIT(*s) && ckWARN(WARN_SYNTAX)) |
9014280d | 4072 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression", |
599cee73 | 4073 | *s, *s); |
3280af22 | 4074 | if (PL_expect == XOPERATOR) |
8990e307 | 4075 | no_op("Backslash",s); |
79072805 LW |
4076 | OPERATOR(REFGEN); |
4077 | ||
a7cb1f99 | 4078 | case 'v': |
e526c9e6 | 4079 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
f54cb97a | 4080 | char *start = s + 2; |
dd629d5b | 4081 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
4082 | start++; |
4083 | if (*start == '.' && isDIGIT(start[1])) { | |
b73d6f50 | 4084 | s = scan_num(s, &yylval); |
a7cb1f99 GS |
4085 | TERM(THING); |
4086 | } | |
e526c9e6 | 4087 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
6f33ba73 RGS |
4088 | else if (!isALPHA(*start) && (PL_expect == XTERM |
4089 | || PL_expect == XREF || PL_expect == XSTATE | |
4090 | || PL_expect == XTERMORDORDOR)) { | |
f54cb97a | 4091 | const char c = *start; |
e526c9e6 GS |
4092 | GV *gv; |
4093 | *start = '\0'; | |
f776e3cd | 4094 | gv = gv_fetchpv(s, 0, SVt_PVCV); |
e526c9e6 GS |
4095 | *start = c; |
4096 | if (!gv) { | |
b73d6f50 | 4097 | s = scan_num(s, &yylval); |
e526c9e6 GS |
4098 | TERM(THING); |
4099 | } | |
4100 | } | |
a7cb1f99 GS |
4101 | } |
4102 | goto keylookup; | |
79072805 | 4103 | case 'x': |
3280af22 | 4104 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
4105 | s++; |
4106 | Mop(OP_REPEAT); | |
2f3197b3 | 4107 | } |
79072805 LW |
4108 | goto keylookup; |
4109 | ||
378cc40b | 4110 | case '_': |
79072805 LW |
4111 | case 'a': case 'A': |
4112 | case 'b': case 'B': | |
4113 | case 'c': case 'C': | |
4114 | case 'd': case 'D': | |
4115 | case 'e': case 'E': | |
4116 | case 'f': case 'F': | |
4117 | case 'g': case 'G': | |
4118 | case 'h': case 'H': | |
4119 | case 'i': case 'I': | |
4120 | case 'j': case 'J': | |
4121 | case 'k': case 'K': | |
4122 | case 'l': case 'L': | |
4123 | case 'm': case 'M': | |
4124 | case 'n': case 'N': | |
4125 | case 'o': case 'O': | |
4126 | case 'p': case 'P': | |
4127 | case 'q': case 'Q': | |
4128 | case 'r': case 'R': | |
4129 | case 's': case 'S': | |
4130 | case 't': case 'T': | |
4131 | case 'u': case 'U': | |
a7cb1f99 | 4132 | case 'V': |
79072805 LW |
4133 | case 'w': case 'W': |
4134 | case 'X': | |
4135 | case 'y': case 'Y': | |
4136 | case 'z': case 'Z': | |
4137 | ||
49dc05e3 | 4138 | keylookup: { |
90771dc0 | 4139 | I32 tmp; |
0bfa2a8a | 4140 | I32 orig_keyword = 0; |
cbbf8932 AL |
4141 | GV *gv = NULL; |
4142 | GV **gvp = NULL; | |
49dc05e3 | 4143 | |
3280af22 NIS |
4144 | PL_bufptr = s; |
4145 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 4146 | |
4147 | /* Some keywords can be followed by any delimiter, including ':' */ | |
155aba94 GS |
4148 | tmp = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
4149 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || | |
4150 | (PL_tokenbuf[0] == 'q' && | |
4151 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 4152 | |
4153 | /* x::* is just a word, unless x is "CORE" */ | |
3280af22 | 4154 | if (!tmp && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
4155 | goto just_a_word; |
4156 | ||
3643fb5f | 4157 | d = s; |
3280af22 | 4158 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
4159 | d++; /* no comments skipped here, or s### is misparsed */ |
4160 | ||
4161 | /* Is this a label? */ | |
3280af22 NIS |
4162 | if (!tmp && PL_expect == XSTATE |
4163 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
8ebc5c01 | 4164 | s = d + 1; |
3280af22 | 4165 | yylval.pval = savepv(PL_tokenbuf); |
8ebc5c01 | 4166 | CLINE; |
4167 | TOKEN(LABEL); | |
3643fb5f CS |
4168 | } |
4169 | ||
4170 | /* Check for keywords */ | |
3280af22 | 4171 | tmp = keyword(PL_tokenbuf, len); |
748a9306 LW |
4172 | |
4173 | /* Is this a word before a => operator? */ | |
1c3923b3 | 4174 | if (*d == '=' && d[1] == '>') { |
748a9306 | 4175 | CLINE; |
d0a148a6 NC |
4176 | yylval.opval |
4177 | = (OP*)newSVOP(OP_CONST, 0, | |
4178 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
748a9306 LW |
4179 | yylval.opval->op_private = OPpCONST_BARE; |
4180 | TERM(WORD); | |
4181 | } | |
4182 | ||
a0d0e21e | 4183 | if (tmp < 0) { /* second-class keyword? */ |
cbbf8932 AL |
4184 | GV *ogv = NULL; /* override (winner) */ |
4185 | GV *hgv = NULL; /* hidden (loser) */ | |
3280af22 | 4186 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 4187 | CV *cv; |
f776e3cd | 4188 | if ((gv = gv_fetchpv(PL_tokenbuf, 0, SVt_PVCV)) && |
56f7f34b CS |
4189 | (cv = GvCVu(gv))) |
4190 | { | |
4191 | if (GvIMPORTED_CV(gv)) | |
4192 | ogv = gv; | |
4193 | else if (! CvMETHOD(cv)) | |
4194 | hgv = gv; | |
4195 | } | |
4196 | if (!ogv && | |
3280af22 NIS |
4197 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
4198 | (gv = *gvp) != (GV*)&PL_sv_undef && | |
56f7f34b CS |
4199 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
4200 | { | |
4201 | ogv = gv; | |
4202 | } | |
4203 | } | |
4204 | if (ogv) { | |
30fe34ed | 4205 | orig_keyword = tmp; |
56f7f34b | 4206 | tmp = 0; /* overridden by import or by GLOBAL */ |
6e7b2336 GS |
4207 | } |
4208 | else if (gv && !gvp | |
4209 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
d0456cad | 4210 | && GvCVu(gv) |
017a3ce5 | 4211 | && !hv_fetchs(GvHVn(PL_incgv), "Thread.pm", FALSE)) |
6e7b2336 GS |
4212 | { |
4213 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 4214 | } |
56f7f34b CS |
4215 | else { /* no override */ |
4216 | tmp = -tmp; | |
ac206dc8 | 4217 | if (tmp == KEY_dump && ckWARN(WARN_MISC)) { |
9014280d | 4218 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
ac206dc8 RGS |
4219 | "dump() better written as CORE::dump()"); |
4220 | } | |
56f7f34b CS |
4221 | gv = Nullgv; |
4222 | gvp = 0; | |
041457d9 DM |
4223 | if (hgv && tmp != KEY_x && tmp != KEY_CORE |
4224 | && ckWARN(WARN_AMBIGUOUS)) /* never ambiguous */ | |
9014280d | 4225 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 4226 | "Ambiguous call resolved as CORE::%s(), %s", |
2f3ca594 | 4227 | GvENAME(hgv), "qualify as such or use &"); |
49dc05e3 | 4228 | } |
a0d0e21e LW |
4229 | } |
4230 | ||
4231 | reserved_word: | |
4232 | switch (tmp) { | |
79072805 LW |
4233 | |
4234 | default: /* not a keyword */ | |
0bfa2a8a NC |
4235 | /* Trade off - by using this evil construction we can pull the |
4236 | variable gv into the block labelled keylookup. If not, then | |
4237 | we have to give it function scope so that the goto from the | |
4238 | earlier ':' case doesn't bypass the initialisation. */ | |
4239 | if (0) { | |
4240 | just_a_word_zero_gv: | |
4241 | gv = NULL; | |
4242 | gvp = NULL; | |
8bee0991 | 4243 | orig_keyword = 0; |
0bfa2a8a | 4244 | } |
93a17b20 | 4245 | just_a_word: { |
96e4d5b1 | 4246 | SV *sv; |
ce29ac45 | 4247 | int pkgname = 0; |
f54cb97a | 4248 | const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
5069cc75 | 4249 | CV *cv; |
8990e307 LW |
4250 | |
4251 | /* Get the rest if it looks like a package qualifier */ | |
4252 | ||
155aba94 | 4253 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 4254 | STRLEN morelen; |
3280af22 | 4255 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
4256 | TRUE, &morelen); |
4257 | if (!morelen) | |
cea2e8a9 | 4258 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 4259 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 4260 | len += morelen; |
ce29ac45 | 4261 | pkgname = 1; |
a0d0e21e | 4262 | } |
8990e307 | 4263 | |
3280af22 NIS |
4264 | if (PL_expect == XOPERATOR) { |
4265 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 4266 | CopLINE_dec(PL_curcop); |
9014280d | 4267 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 4268 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
4269 | } |
4270 | else | |
54310121 | 4271 | no_op("Bareword",s); |
463ee0b2 | 4272 | } |
8990e307 | 4273 | |
c3e0f903 GS |
4274 | /* Look for a subroutine with this name in current package, |
4275 | unless name is "Foo::", in which case Foo is a bearword | |
4276 | (and a package name). */ | |
4277 | ||
4278 | if (len > 2 && | |
3280af22 | 4279 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 4280 | { |
f776e3cd NC |
4281 | if (ckWARN(WARN_BAREWORD) |
4282 | && ! gv_fetchpv(PL_tokenbuf, 0, SVt_PVHV)) | |
9014280d | 4283 | Perl_warner(aTHX_ packWARN(WARN_BAREWORD), |
599cee73 | 4284 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 4285 | PL_tokenbuf); |
c3e0f903 | 4286 | len -= 2; |
3280af22 | 4287 | PL_tokenbuf[len] = '\0'; |
c3e0f903 GS |
4288 | gv = Nullgv; |
4289 | gvp = 0; | |
4290 | } | |
4291 | else { | |
4292 | len = 0; | |
62d55b22 NC |
4293 | if (!gv) { |
4294 | /* Mustn't actually add anything to a symbol table. | |
4295 | But also don't want to "initialise" any placeholder | |
4296 | constants that might already be there into full | |
4297 | blown PVGVs with attached PVCV. */ | |
4298 | gv = gv_fetchpv(PL_tokenbuf, GV_NOADD_NOINIT, | |
4299 | SVt_PVCV); | |
4300 | } | |
c3e0f903 GS |
4301 | } |
4302 | ||
4303 | /* if we saw a global override before, get the right name */ | |
8990e307 | 4304 | |
49dc05e3 | 4305 | if (gvp) { |
396482e1 | 4306 | sv = newSVpvs("CORE::GLOBAL::"); |
3280af22 | 4307 | sv_catpv(sv,PL_tokenbuf); |
49dc05e3 | 4308 | } |
8a7a129d NC |
4309 | else { |
4310 | /* If len is 0, newSVpv does strlen(), which is correct. | |
4311 | If len is non-zero, then it will be the true length, | |
4312 | and so the scalar will be created correctly. */ | |
4313 | sv = newSVpv(PL_tokenbuf,len); | |
4314 | } | |
8990e307 | 4315 | |
a0d0e21e LW |
4316 | /* Presume this is going to be a bareword of some sort. */ |
4317 | ||
4318 | CLINE; | |
49dc05e3 | 4319 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
a0d0e21e | 4320 | yylval.opval->op_private = OPpCONST_BARE; |
8f8cf39c JH |
4321 | /* UTF-8 package name? */ |
4322 | if (UTF && !IN_BYTES && | |
95a20fc0 | 4323 | is_utf8_string((U8*)SvPVX_const(sv), SvCUR(sv))) |
8f8cf39c | 4324 | SvUTF8_on(sv); |
a0d0e21e | 4325 | |
c3e0f903 GS |
4326 | /* And if "Foo::", then that's what it certainly is. */ |
4327 | ||
4328 | if (len) | |
4329 | goto safe_bareword; | |
4330 | ||
5069cc75 NC |
4331 | /* Do the explicit type check so that we don't need to force |
4332 | the initialisation of the symbol table to have a real GV. | |
4333 | Beware - gv may not really be a PVGV, cv may not really be | |
4334 | a PVCV, (because of the space optimisations that gv_init | |
4335 | understands) But they're true if for this symbol there is | |
4336 | respectively a typeglob and a subroutine. | |
4337 | */ | |
4338 | cv = gv ? ((SvTYPE(gv) == SVt_PVGV) | |
4339 | /* Real typeglob, so get the real subroutine: */ | |
4340 | ? GvCVu(gv) | |
4341 | /* A proxy for a subroutine in this package? */ | |
4342 | : SvOK(gv) ? (CV *) gv : NULL) | |
4343 | : NULL; | |
4344 | ||
8990e307 LW |
4345 | /* See if it's the indirect object for a list operator. */ |
4346 | ||
3280af22 NIS |
4347 | if (PL_oldoldbufptr && |
4348 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
4349 | (PL_oldoldbufptr == PL_last_lop |
4350 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 4351 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
4352 | (PL_expect == XREF || |
4353 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 4354 | { |
748a9306 LW |
4355 | bool immediate_paren = *s == '('; |
4356 | ||
a0d0e21e LW |
4357 | /* (Now we can afford to cross potential line boundary.) */ |
4358 | s = skipspace(s); | |
4359 | ||
4360 | /* Two barewords in a row may indicate method call. */ | |
4361 | ||
62d55b22 NC |
4362 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && |
4363 | (tmp = intuit_method(s, gv, cv))) | |
bbf60fe6 | 4364 | return REPORT(tmp); |
a0d0e21e LW |
4365 | |
4366 | /* If not a declared subroutine, it's an indirect object. */ | |
4367 | /* (But it's an indir obj regardless for sort.) */ | |
7294df96 | 4368 | /* Also, if "_" follows a filetest operator, it's a bareword */ |
a0d0e21e | 4369 | |
7294df96 RGS |
4370 | if ( |
4371 | ( !immediate_paren && (PL_last_lop_op == OP_SORT || | |
5069cc75 | 4372 | ((!gv || !cv) && |
a9ef352a | 4373 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 4374 | PL_last_lop_op != OP_GREPSTART)))) |
7294df96 RGS |
4375 | || (PL_tokenbuf[0] == '_' && PL_tokenbuf[1] == '\0' |
4376 | && ((PL_opargs[PL_last_lop_op] & OA_CLASS_MASK) == OA_FILESTATOP)) | |
4377 | ) | |
a9ef352a | 4378 | { |
3280af22 | 4379 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 4380 | goto bareword; |
93a17b20 LW |
4381 | } |
4382 | } | |
8990e307 | 4383 | |
3280af22 | 4384 | PL_expect = XOPERATOR; |
8990e307 | 4385 | s = skipspace(s); |
1c3923b3 GS |
4386 | |
4387 | /* Is this a word before a => operator? */ | |
ce29ac45 | 4388 | if (*s == '=' && s[1] == '>' && !pkgname) { |
1c3923b3 GS |
4389 | CLINE; |
4390 | sv_setpv(((SVOP*)yylval.opval)->op_sv, PL_tokenbuf); | |
0064a8a9 | 4391 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
7948272d | 4392 | SvUTF8_on(((SVOP*)yylval.opval)->op_sv); |
1c3923b3 GS |
4393 | TERM(WORD); |
4394 | } | |
4395 | ||
4396 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 4397 | if (*s == '(') { |
79072805 | 4398 | CLINE; |
5069cc75 | 4399 | if (cv) { |
bf4acbe4 | 4400 | for (d = s + 1; SPACE_OR_TAB(*d); d++) ; |
62d55b22 | 4401 | if (*d == ')' && (sv = gv_const_sv(gv))) { |
96e4d5b1 | 4402 | s = d + 1; |
4403 | goto its_constant; | |
4404 | } | |
4405 | } | |
3280af22 NIS |
4406 | PL_nextval[PL_nexttoke].opval = yylval.opval; |
4407 | PL_expect = XOPERATOR; | |
93a17b20 | 4408 | force_next(WORD); |
c07a80fd | 4409 | yylval.ival = 0; |
463ee0b2 | 4410 | TOKEN('&'); |
79072805 | 4411 | } |
93a17b20 | 4412 | |
a0d0e21e | 4413 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 4414 | |
62d55b22 | 4415 | if ((*s == '$' || *s == '{') && (!gv || !cv)) { |
3280af22 NIS |
4416 | PL_last_lop = PL_oldbufptr; |
4417 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 4418 | PREBLOCK(METHOD); |
463ee0b2 LW |
4419 | } |
4420 | ||
8990e307 LW |
4421 | /* If followed by a bareword, see if it looks like indir obj. */ |
4422 | ||
30fe34ed RGS |
4423 | if (!orig_keyword |
4424 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
62d55b22 | 4425 | && (tmp = intuit_method(s, gv, cv))) |
bbf60fe6 | 4426 | return REPORT(tmp); |
93a17b20 | 4427 | |
8990e307 LW |
4428 | /* Not a method, so call it a subroutine (if defined) */ |
4429 | ||
5069cc75 | 4430 | if (cv) { |
0453d815 | 4431 | if (lastchar == '-' && ckWARN_d(WARN_AMBIGUOUS)) |
9014280d | 4432 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 4433 | "Ambiguous use of -%s resolved as -&%s()", |
3280af22 | 4434 | PL_tokenbuf, PL_tokenbuf); |
89bfa8cd | 4435 | /* Check for a constant sub */ |
62d55b22 | 4436 | if ((sv = gv_const_sv(gv))) { |
96e4d5b1 | 4437 | its_constant: |
4438 | SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv); | |
4439 | ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc(sv); | |
4440 | yylval.opval->op_private = 0; | |
4441 | TOKEN(WORD); | |
89bfa8cd | 4442 | } |
4443 | ||
a5f75d66 | 4444 | /* Resolve to GV now. */ |
62d55b22 NC |
4445 | if (SvTYPE(gv) != SVt_PVGV) { |
4446 | gv = gv_fetchpv(PL_tokenbuf, 0, SVt_PVCV); | |
4447 | assert (SvTYPE(gv) == SVt_PVGV); | |
4448 | /* cv must have been some sort of placeholder, so | |
4449 | now needs replacing with a real code reference. */ | |
4450 | cv = GvCV(gv); | |
4451 | } | |
4452 | ||
a5f75d66 AD |
4453 | op_free(yylval.opval); |
4454 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
9675f7ac | 4455 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
7a52d87a | 4456 | PL_last_lop = PL_oldbufptr; |
bf848113 | 4457 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 LW |
4458 | /* Is there a prototype? */ |
4459 | if (SvPOK(cv)) { | |
4460 | STRLEN len; | |
cfd0369c | 4461 | const char *proto = SvPV_const((SV*)cv, len); |
4633a7c4 LW |
4462 | if (!len) |
4463 | TERM(FUNC0SUB); | |
770526c1 | 4464 | if (*proto == '$' && proto[1] == '\0') |
4633a7c4 | 4465 | OPERATOR(UNIOPSUB); |
0f5d0394 AE |
4466 | while (*proto == ';') |
4467 | proto++; | |
7a52d87a | 4468 | if (*proto == '&' && *s == '{') { |
bfed75c6 | 4469 | sv_setpv(PL_subname, PL_curstash ? |
c99da370 | 4470 | "__ANON__" : "__ANON__::__ANON__"); |
4633a7c4 LW |
4471 | PREBLOCK(LSTOPSUB); |
4472 | } | |
a9ef352a | 4473 | } |
3280af22 NIS |
4474 | PL_nextval[PL_nexttoke].opval = yylval.opval; |
4475 | PL_expect = XTERM; | |
8990e307 LW |
4476 | force_next(WORD); |
4477 | TOKEN(NOAMP); | |
4478 | } | |
748a9306 | 4479 | |
8990e307 LW |
4480 | /* Call it a bare word */ |
4481 | ||
5603f27d GS |
4482 | if (PL_hints & HINT_STRICT_SUBS) |
4483 | yylval.opval->op_private |= OPpCONST_STRICT; | |
4484 | else { | |
4485 | bareword: | |
041457d9 DM |
4486 | if (lastchar != '-') { |
4487 | if (ckWARN(WARN_RESERVED)) { | |
5603f27d | 4488 | for (d = PL_tokenbuf; *d && isLOWER(*d); d++) ; |
238ae712 | 4489 | if (!*d && !gv_stashpv(PL_tokenbuf,FALSE)) |
9014280d | 4490 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
4491 | PL_tokenbuf); |
4492 | } | |
748a9306 LW |
4493 | } |
4494 | } | |
c3e0f903 GS |
4495 | |
4496 | safe_bareword: | |
3792a11b NC |
4497 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&') |
4498 | && ckWARN_d(WARN_AMBIGUOUS)) { | |
9014280d | 4499 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 4500 | "Operator or semicolon missing before %c%s", |
3280af22 | 4501 | lastchar, PL_tokenbuf); |
9014280d | 4502 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 4503 | "Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
4504 | lastchar, lastchar); |
4505 | } | |
93a17b20 | 4506 | TOKEN(WORD); |
79072805 | 4507 | } |
79072805 | 4508 | |
68dc0745 | 4509 | case KEY___FILE__: |
46fc3d4c | 4510 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 4511 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 4512 | TERM(THING); |
4513 | ||
79072805 | 4514 | case KEY___LINE__: |
cf2093f6 | 4515 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 4516 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 4517 | TERM(THING); |
68dc0745 | 4518 | |
4519 | case KEY___PACKAGE__: | |
4520 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, | |
3280af22 | 4521 | (PL_curstash |
5aaec2b4 | 4522 | ? newSVhek(HvNAME_HEK(PL_curstash)) |
3280af22 | 4523 | : &PL_sv_undef)); |
79072805 | 4524 | TERM(THING); |
79072805 | 4525 | |
e50aee73 | 4526 | case KEY___DATA__: |
79072805 LW |
4527 | case KEY___END__: { |
4528 | GV *gv; | |
3280af22 | 4529 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
bfed75c6 | 4530 | const char *pname = "main"; |
3280af22 | 4531 | if (PL_tokenbuf[2] == 'D') |
bfcb3514 | 4532 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
f776e3cd NC |
4533 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD, |
4534 | SVt_PVIO); | |
a5f75d66 | 4535 | GvMULTI_on(gv); |
79072805 | 4536 | if (!GvIO(gv)) |
a0d0e21e | 4537 | GvIOp(gv) = newIO(); |
3280af22 | 4538 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
4539 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
4540 | { | |
f54cb97a | 4541 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
4542 | fcntl(fd,F_SETFD,fd >= 3); |
4543 | } | |
79072805 | 4544 | #endif |
fd049845 | 4545 | /* Mark this internal pseudo-handle as clean */ |
4546 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
3280af22 | 4547 | if (PL_preprocess) |
50952442 | 4548 | IoTYPE(GvIOp(gv)) = IoTYPE_PIPE; |
3280af22 | 4549 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 4550 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 4551 | else |
50952442 | 4552 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
4553 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
4554 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 4555 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 4556 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
4557 | if (PL_bufend-PL_bufptr > 2 |
4558 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
4559 | { |
4560 | Off_t loc = 0; | |
50952442 | 4561 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
4562 | loc = PerlIO_tell(PL_rsfp); |
4563 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
4564 | } | |
2986a63f JH |
4565 | #ifdef NETWARE |
4566 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
4567 | #else | |
c39cd008 | 4568 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 4569 | #endif /* NETWARE */ |
1143fce0 JH |
4570 | #ifdef PERLIO_IS_STDIO /* really? */ |
4571 | # if defined(__BORLANDC__) | |
cb359b41 JH |
4572 | /* XXX see note in do_binmode() */ |
4573 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
4574 | # endif |
4575 | #endif | |
c39cd008 GS |
4576 | if (loc > 0) |
4577 | PerlIO_seek(PL_rsfp, loc, 0); | |
4578 | } | |
4579 | } | |
4580 | #endif | |
7948272d | 4581 | #ifdef PERLIO_LAYERS |
52d2e0f4 JH |
4582 | if (!IN_BYTES) { |
4583 | if (UTF) | |
4584 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
4585 | else if (PL_encoding) { | |
4586 | SV *name; | |
4587 | dSP; | |
4588 | ENTER; | |
4589 | SAVETMPS; | |
4590 | PUSHMARK(sp); | |
4591 | EXTEND(SP, 1); | |
4592 | XPUSHs(PL_encoding); | |
4593 | PUTBACK; | |
4594 | call_method("name", G_SCALAR); | |
4595 | SPAGAIN; | |
4596 | name = POPs; | |
4597 | PUTBACK; | |
bfed75c6 | 4598 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
52d2e0f4 JH |
4599 | Perl_form(aTHX_ ":encoding(%"SVf")", |
4600 | name)); | |
4601 | FREETMPS; | |
4602 | LEAVE; | |
4603 | } | |
4604 | } | |
7948272d | 4605 | #endif |
3280af22 | 4606 | PL_rsfp = Nullfp; |
79072805 LW |
4607 | } |
4608 | goto fake_eof; | |
e929a76b | 4609 | } |
de3bb511 | 4610 | |
8990e307 | 4611 | case KEY_AUTOLOAD: |
ed6116ce | 4612 | case KEY_DESTROY: |
79072805 | 4613 | case KEY_BEGIN: |
7d30b5c4 | 4614 | case KEY_CHECK: |
7d07dbc2 | 4615 | case KEY_INIT: |
7d30b5c4 | 4616 | case KEY_END: |
3280af22 NIS |
4617 | if (PL_expect == XSTATE) { |
4618 | s = PL_bufptr; | |
93a17b20 | 4619 | goto really_sub; |
79072805 LW |
4620 | } |
4621 | goto just_a_word; | |
4622 | ||
a0d0e21e LW |
4623 | case KEY_CORE: |
4624 | if (*s == ':' && s[1] == ':') { | |
4625 | s += 2; | |
748a9306 | 4626 | d = s; |
3280af22 | 4627 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
6798c92b GS |
4628 | if (!(tmp = keyword(PL_tokenbuf, len))) |
4629 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); | |
a0d0e21e LW |
4630 | if (tmp < 0) |
4631 | tmp = -tmp; | |
850e8516 | 4632 | else if (tmp == KEY_require || tmp == KEY_do) |
a72a1c8b | 4633 | /* that's a way to remember we saw "CORE::" */ |
850e8516 | 4634 | orig_keyword = tmp; |
a0d0e21e LW |
4635 | goto reserved_word; |
4636 | } | |
4637 | goto just_a_word; | |
4638 | ||
463ee0b2 LW |
4639 | case KEY_abs: |
4640 | UNI(OP_ABS); | |
4641 | ||
79072805 LW |
4642 | case KEY_alarm: |
4643 | UNI(OP_ALARM); | |
4644 | ||
4645 | case KEY_accept: | |
a0d0e21e | 4646 | LOP(OP_ACCEPT,XTERM); |
79072805 | 4647 | |
463ee0b2 LW |
4648 | case KEY_and: |
4649 | OPERATOR(ANDOP); | |
4650 | ||
79072805 | 4651 | case KEY_atan2: |
a0d0e21e | 4652 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 4653 | |
79072805 | 4654 | case KEY_bind: |
a0d0e21e | 4655 | LOP(OP_BIND,XTERM); |
79072805 LW |
4656 | |
4657 | case KEY_binmode: | |
1c1fc3ea | 4658 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
4659 | |
4660 | case KEY_bless: | |
a0d0e21e | 4661 | LOP(OP_BLESS,XTERM); |
79072805 | 4662 | |
0d863452 RH |
4663 | case KEY_break: |
4664 | FUN0(OP_BREAK); | |
4665 | ||
79072805 LW |
4666 | case KEY_chop: |
4667 | UNI(OP_CHOP); | |
4668 | ||
4669 | case KEY_continue: | |
0d863452 RH |
4670 | /* When 'use switch' is in effect, continue has a dual |
4671 | life as a control operator. */ | |
4672 | { | |
ef89dcc3 | 4673 | if (!FEATURE_IS_ENABLED("switch")) |
0d863452 RH |
4674 | PREBLOCK(CONTINUE); |
4675 | else { | |
4676 | /* We have to disambiguate the two senses of | |
4677 | "continue". If the next token is a '{' then | |
4678 | treat it as the start of a continue block; | |
4679 | otherwise treat it as a control operator. | |
4680 | */ | |
4681 | s = skipspace(s); | |
4682 | if (*s == '{') | |
79072805 | 4683 | PREBLOCK(CONTINUE); |
0d863452 RH |
4684 | else |
4685 | FUN0(OP_CONTINUE); | |
4686 | } | |
4687 | } | |
79072805 LW |
4688 | |
4689 | case KEY_chdir: | |
f776e3cd | 4690 | (void)gv_fetchpv("ENV", GV_ADD, SVt_PVHV); /* may use HOME */ |
79072805 LW |
4691 | UNI(OP_CHDIR); |
4692 | ||
4693 | case KEY_close: | |
4694 | UNI(OP_CLOSE); | |
4695 | ||
4696 | case KEY_closedir: | |
4697 | UNI(OP_CLOSEDIR); | |
4698 | ||
4699 | case KEY_cmp: | |
4700 | Eop(OP_SCMP); | |
4701 | ||
4702 | case KEY_caller: | |
4703 | UNI(OP_CALLER); | |
4704 | ||
4705 | case KEY_crypt: | |
4706 | #ifdef FCRYPT | |
f4c556ac GS |
4707 | if (!PL_cryptseen) { |
4708 | PL_cryptseen = TRUE; | |
de3bb511 | 4709 | init_des(); |
f4c556ac | 4710 | } |
a687059c | 4711 | #endif |
a0d0e21e | 4712 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
4713 | |
4714 | case KEY_chmod: | |
a0d0e21e | 4715 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
4716 | |
4717 | case KEY_chown: | |
a0d0e21e | 4718 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
4719 | |
4720 | case KEY_connect: | |
a0d0e21e | 4721 | LOP(OP_CONNECT,XTERM); |
79072805 | 4722 | |
463ee0b2 LW |
4723 | case KEY_chr: |
4724 | UNI(OP_CHR); | |
4725 | ||
79072805 LW |
4726 | case KEY_cos: |
4727 | UNI(OP_COS); | |
4728 | ||
4729 | case KEY_chroot: | |
4730 | UNI(OP_CHROOT); | |
4731 | ||
0d863452 RH |
4732 | case KEY_default: |
4733 | PREBLOCK(DEFAULT); | |
4734 | ||
79072805 LW |
4735 | case KEY_do: |
4736 | s = skipspace(s); | |
4737 | if (*s == '{') | |
a0d0e21e | 4738 | PRETERMBLOCK(DO); |
79072805 | 4739 | if (*s != '\'') |
89c5585f | 4740 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
850e8516 RGS |
4741 | if (orig_keyword == KEY_do) { |
4742 | orig_keyword = 0; | |
4743 | yylval.ival = 1; | |
4744 | } | |
4745 | else | |
4746 | yylval.ival = 0; | |
378cc40b | 4747 | OPERATOR(DO); |
79072805 LW |
4748 | |
4749 | case KEY_die: | |
3280af22 | 4750 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 4751 | LOP(OP_DIE,XTERM); |
79072805 LW |
4752 | |
4753 | case KEY_defined: | |
4754 | UNI(OP_DEFINED); | |
4755 | ||
4756 | case KEY_delete: | |
a0d0e21e | 4757 | UNI(OP_DELETE); |
79072805 LW |
4758 | |
4759 | case KEY_dbmopen: | |
a0d0e21e LW |
4760 | gv_fetchpv("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
4761 | LOP(OP_DBMOPEN,XTERM); | |
79072805 LW |
4762 | |
4763 | case KEY_dbmclose: | |
4764 | UNI(OP_DBMCLOSE); | |
4765 | ||
4766 | case KEY_dump: | |
a0d0e21e | 4767 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
4768 | LOOPX(OP_DUMP); |
4769 | ||
4770 | case KEY_else: | |
4771 | PREBLOCK(ELSE); | |
4772 | ||
4773 | case KEY_elsif: | |
57843af0 | 4774 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
4775 | OPERATOR(ELSIF); |
4776 | ||
4777 | case KEY_eq: | |
4778 | Eop(OP_SEQ); | |
4779 | ||
a0d0e21e LW |
4780 | case KEY_exists: |
4781 | UNI(OP_EXISTS); | |
4e553d73 | 4782 | |
79072805 LW |
4783 | case KEY_exit: |
4784 | UNI(OP_EXIT); | |
4785 | ||
4786 | case KEY_eval: | |
79072805 | 4787 | s = skipspace(s); |
3280af22 | 4788 | PL_expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 4789 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
4790 | |
4791 | case KEY_eof: | |
4792 | UNI(OP_EOF); | |
4793 | ||
c963b151 BD |
4794 | case KEY_err: |
4795 | OPERATOR(DOROP); | |
4796 | ||
79072805 LW |
4797 | case KEY_exp: |
4798 | UNI(OP_EXP); | |
4799 | ||
4800 | case KEY_each: | |
4801 | UNI(OP_EACH); | |
4802 | ||
4803 | case KEY_exec: | |
4804 | set_csh(); | |
a0d0e21e | 4805 | LOP(OP_EXEC,XREF); |
79072805 LW |
4806 | |
4807 | case KEY_endhostent: | |
4808 | FUN0(OP_EHOSTENT); | |
4809 | ||
4810 | case KEY_endnetent: | |
4811 | FUN0(OP_ENETENT); | |
4812 | ||
4813 | case KEY_endservent: | |
4814 | FUN0(OP_ESERVENT); | |
4815 | ||
4816 | case KEY_endprotoent: | |
4817 | FUN0(OP_EPROTOENT); | |
4818 | ||
4819 | case KEY_endpwent: | |
4820 | FUN0(OP_EPWENT); | |
4821 | ||
4822 | case KEY_endgrent: | |
4823 | FUN0(OP_EGRENT); | |
4824 | ||
4825 | case KEY_for: | |
4826 | case KEY_foreach: | |
57843af0 | 4827 | yylval.ival = CopLINE(PL_curcop); |
55497cff | 4828 | s = skipspace(s); |
7e2040f0 | 4829 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 4830 | char *p = s; |
3280af22 | 4831 | if ((PL_bufend - p) >= 3 && |
55497cff | 4832 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
4833 | p += 2; | |
77ca0c92 LW |
4834 | else if ((PL_bufend - p) >= 4 && |
4835 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
4836 | p += 3; | |
55497cff | 4837 | p = skipspace(p); |
7e2040f0 | 4838 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
4839 | p = scan_ident(p, PL_bufend, |
4840 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
4841 | p = skipspace(p); | |
4842 | } | |
4843 | if (*p != '$') | |
cea2e8a9 | 4844 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
55497cff | 4845 | } |
79072805 LW |
4846 | OPERATOR(FOR); |
4847 | ||
4848 | case KEY_formline: | |
a0d0e21e | 4849 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
4850 | |
4851 | case KEY_fork: | |
4852 | FUN0(OP_FORK); | |
4853 | ||
4854 | case KEY_fcntl: | |
a0d0e21e | 4855 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
4856 | |
4857 | case KEY_fileno: | |
4858 | UNI(OP_FILENO); | |
4859 | ||
4860 | case KEY_flock: | |
a0d0e21e | 4861 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
4862 | |
4863 | case KEY_gt: | |
4864 | Rop(OP_SGT); | |
4865 | ||
4866 | case KEY_ge: | |
4867 | Rop(OP_SGE); | |
4868 | ||
4869 | case KEY_grep: | |
2c38e13d | 4870 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
4871 | |
4872 | case KEY_goto: | |
a0d0e21e | 4873 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
4874 | LOOPX(OP_GOTO); |
4875 | ||
4876 | case KEY_gmtime: | |
4877 | UNI(OP_GMTIME); | |
4878 | ||
4879 | case KEY_getc: | |
6f33ba73 | 4880 | UNIDOR(OP_GETC); |
79072805 LW |
4881 | |
4882 | case KEY_getppid: | |
4883 | FUN0(OP_GETPPID); | |
4884 | ||
4885 | case KEY_getpgrp: | |
4886 | UNI(OP_GETPGRP); | |
4887 | ||
4888 | case KEY_getpriority: | |
a0d0e21e | 4889 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
4890 | |
4891 | case KEY_getprotobyname: | |
4892 | UNI(OP_GPBYNAME); | |
4893 | ||
4894 | case KEY_getprotobynumber: | |
a0d0e21e | 4895 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
4896 | |
4897 | case KEY_getprotoent: | |
4898 | FUN0(OP_GPROTOENT); | |
4899 | ||
4900 | case KEY_getpwent: | |
4901 | FUN0(OP_GPWENT); | |
4902 | ||
4903 | case KEY_getpwnam: | |
ff68c719 | 4904 | UNI(OP_GPWNAM); |
79072805 LW |
4905 | |
4906 | case KEY_getpwuid: | |
ff68c719 | 4907 | UNI(OP_GPWUID); |
79072805 LW |
4908 | |
4909 | case KEY_getpeername: | |
4910 | UNI(OP_GETPEERNAME); | |
4911 | ||
4912 | case KEY_gethostbyname: | |
4913 | UNI(OP_GHBYNAME); | |
4914 | ||
4915 | case KEY_gethostbyaddr: | |
a0d0e21e | 4916 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
4917 | |
4918 | case KEY_gethostent: | |
4919 | FUN0(OP_GHOSTENT); | |
4920 | ||
4921 | case KEY_getnetbyname: | |
4922 | UNI(OP_GNBYNAME); | |
4923 | ||
4924 | case KEY_getnetbyaddr: | |
a0d0e21e | 4925 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
4926 | |
4927 | case KEY_getnetent: | |
4928 | FUN0(OP_GNETENT); | |
4929 | ||
4930 | case KEY_getservbyname: | |
a0d0e21e | 4931 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
4932 | |
4933 | case KEY_getservbyport: | |
a0d0e21e | 4934 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
4935 | |
4936 | case KEY_getservent: | |
4937 | FUN0(OP_GSERVENT); | |
4938 | ||
4939 | case KEY_getsockname: | |
4940 | UNI(OP_GETSOCKNAME); | |
4941 | ||
4942 | case KEY_getsockopt: | |
a0d0e21e | 4943 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
4944 | |
4945 | case KEY_getgrent: | |
4946 | FUN0(OP_GGRENT); | |
4947 | ||
4948 | case KEY_getgrnam: | |
ff68c719 | 4949 | UNI(OP_GGRNAM); |
79072805 LW |
4950 | |
4951 | case KEY_getgrgid: | |
ff68c719 | 4952 | UNI(OP_GGRGID); |
79072805 LW |
4953 | |
4954 | case KEY_getlogin: | |
4955 | FUN0(OP_GETLOGIN); | |
4956 | ||
0d863452 RH |
4957 | case KEY_given: |
4958 | yylval.ival = CopLINE(PL_curcop); | |
4959 | OPERATOR(GIVEN); | |
4960 | ||
93a17b20 | 4961 | case KEY_glob: |
a0d0e21e LW |
4962 | set_csh(); |
4963 | LOP(OP_GLOB,XTERM); | |
93a17b20 | 4964 | |
79072805 LW |
4965 | case KEY_hex: |
4966 | UNI(OP_HEX); | |
4967 | ||
4968 | case KEY_if: | |
57843af0 | 4969 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
4970 | OPERATOR(IF); |
4971 | ||
4972 | case KEY_index: | |
a0d0e21e | 4973 | LOP(OP_INDEX,XTERM); |
79072805 LW |
4974 | |
4975 | case KEY_int: | |
4976 | UNI(OP_INT); | |
4977 | ||
4978 | case KEY_ioctl: | |
a0d0e21e | 4979 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
4980 | |
4981 | case KEY_join: | |
a0d0e21e | 4982 | LOP(OP_JOIN,XTERM); |
79072805 LW |
4983 | |
4984 | case KEY_keys: | |
4985 | UNI(OP_KEYS); | |
4986 | ||
4987 | case KEY_kill: | |
a0d0e21e | 4988 | LOP(OP_KILL,XTERM); |
79072805 LW |
4989 | |
4990 | case KEY_last: | |
a0d0e21e | 4991 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 4992 | LOOPX(OP_LAST); |
4e553d73 | 4993 | |
79072805 LW |
4994 | case KEY_lc: |
4995 | UNI(OP_LC); | |
4996 | ||
4997 | case KEY_lcfirst: | |
4998 | UNI(OP_LCFIRST); | |
4999 | ||
5000 | case KEY_local: | |
09bef843 | 5001 | yylval.ival = 0; |
79072805 LW |
5002 | OPERATOR(LOCAL); |
5003 | ||
5004 | case KEY_length: | |
5005 | UNI(OP_LENGTH); | |
5006 | ||
5007 | case KEY_lt: | |
5008 | Rop(OP_SLT); | |
5009 | ||
5010 | case KEY_le: | |
5011 | Rop(OP_SLE); | |
5012 | ||
5013 | case KEY_localtime: | |
5014 | UNI(OP_LOCALTIME); | |
5015 | ||
5016 | case KEY_log: | |
5017 | UNI(OP_LOG); | |
5018 | ||
5019 | case KEY_link: | |
a0d0e21e | 5020 | LOP(OP_LINK,XTERM); |
79072805 LW |
5021 | |
5022 | case KEY_listen: | |
a0d0e21e | 5023 | LOP(OP_LISTEN,XTERM); |
79072805 | 5024 | |
c0329465 MB |
5025 | case KEY_lock: |
5026 | UNI(OP_LOCK); | |
5027 | ||
79072805 LW |
5028 | case KEY_lstat: |
5029 | UNI(OP_LSTAT); | |
5030 | ||
5031 | case KEY_m: | |
8782bef2 | 5032 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
5033 | TERM(sublex_start()); |
5034 | ||
a0d0e21e | 5035 | case KEY_map: |
2c38e13d | 5036 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 5037 | |
79072805 | 5038 | case KEY_mkdir: |
a0d0e21e | 5039 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
5040 | |
5041 | case KEY_msgctl: | |
a0d0e21e | 5042 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
5043 | |
5044 | case KEY_msgget: | |
a0d0e21e | 5045 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
5046 | |
5047 | case KEY_msgrcv: | |
a0d0e21e | 5048 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
5049 | |
5050 | case KEY_msgsnd: | |
a0d0e21e | 5051 | LOP(OP_MSGSND,XTERM); |
79072805 | 5052 | |
77ca0c92 | 5053 | case KEY_our: |
93a17b20 | 5054 | case KEY_my: |
77ca0c92 | 5055 | PL_in_my = tmp; |
c750a3ec | 5056 | s = skipspace(s); |
7e2040f0 | 5057 | if (isIDFIRST_lazy_if(s,UTF)) { |
3280af22 | 5058 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
5059 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
5060 | goto really_sub; | |
def3634b | 5061 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 5062 | if (!PL_in_my_stash) { |
c750a3ec | 5063 | char tmpbuf[1024]; |
3280af22 NIS |
5064 | PL_bufptr = s; |
5065 | sprintf(tmpbuf, "No such class %.1000s", PL_tokenbuf); | |
c750a3ec MB |
5066 | yyerror(tmpbuf); |
5067 | } | |
5068 | } | |
09bef843 | 5069 | yylval.ival = 1; |
55497cff | 5070 | OPERATOR(MY); |
93a17b20 | 5071 | |
79072805 | 5072 | case KEY_next: |
a0d0e21e | 5073 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5074 | LOOPX(OP_NEXT); |
5075 | ||
5076 | case KEY_ne: | |
5077 | Eop(OP_SNE); | |
5078 | ||
a0d0e21e | 5079 | case KEY_no: |
468aa647 | 5080 | s = tokenize_use(0, s); |
a0d0e21e LW |
5081 | OPERATOR(USE); |
5082 | ||
5083 | case KEY_not: | |
2d2e263d LW |
5084 | if (*s == '(' || (s = skipspace(s), *s == '(')) |
5085 | FUN1(OP_NOT); | |
5086 | else | |
5087 | OPERATOR(NOTOP); | |
a0d0e21e | 5088 | |
79072805 | 5089 | case KEY_open: |
93a17b20 | 5090 | s = skipspace(s); |
7e2040f0 | 5091 | if (isIDFIRST_lazy_if(s,UTF)) { |
f54cb97a | 5092 | const char *t; |
7e2040f0 | 5093 | for (d = s; isALNUM_lazy_if(d,UTF); d++) ; |
e2ab214b DM |
5094 | for (t=d; *t && isSPACE(*t); t++) ; |
5095 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) | |
66fbe8fb HS |
5096 | /* [perl #16184] */ |
5097 | && !(t[0] == '=' && t[1] == '>') | |
5098 | ) { | |
551405c4 | 5099 | int len = (int)(d-s); |
9014280d | 5100 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 5101 | "Precedence problem: open %.*s should be open(%.*s)", |
551405c4 | 5102 | len, s, len, s); |
66fbe8fb | 5103 | } |
93a17b20 | 5104 | } |
a0d0e21e | 5105 | LOP(OP_OPEN,XTERM); |
79072805 | 5106 | |
463ee0b2 | 5107 | case KEY_or: |
a0d0e21e | 5108 | yylval.ival = OP_OR; |
463ee0b2 LW |
5109 | OPERATOR(OROP); |
5110 | ||
79072805 LW |
5111 | case KEY_ord: |
5112 | UNI(OP_ORD); | |
5113 | ||
5114 | case KEY_oct: | |
5115 | UNI(OP_OCT); | |
5116 | ||
5117 | case KEY_opendir: | |
a0d0e21e | 5118 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
5119 | |
5120 | case KEY_print: | |
3280af22 | 5121 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 5122 | LOP(OP_PRINT,XREF); |
79072805 LW |
5123 | |
5124 | case KEY_printf: | |
3280af22 | 5125 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 5126 | LOP(OP_PRTF,XREF); |
79072805 | 5127 | |
c07a80fd | 5128 | case KEY_prototype: |
5129 | UNI(OP_PROTOTYPE); | |
5130 | ||
79072805 | 5131 | case KEY_push: |
a0d0e21e | 5132 | LOP(OP_PUSH,XTERM); |
79072805 LW |
5133 | |
5134 | case KEY_pop: | |
6f33ba73 | 5135 | UNIDOR(OP_POP); |
79072805 | 5136 | |
a0d0e21e | 5137 | case KEY_pos: |
6f33ba73 | 5138 | UNIDOR(OP_POS); |
4e553d73 | 5139 | |
79072805 | 5140 | case KEY_pack: |
a0d0e21e | 5141 | LOP(OP_PACK,XTERM); |
79072805 LW |
5142 | |
5143 | case KEY_package: | |
a0d0e21e | 5144 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
5145 | OPERATOR(PACKAGE); |
5146 | ||
5147 | case KEY_pipe: | |
a0d0e21e | 5148 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
5149 | |
5150 | case KEY_q: | |
09bef843 | 5151 | s = scan_str(s,FALSE,FALSE); |
79072805 | 5152 | if (!s) |
85e6fe83 | 5153 | missingterm((char*)0); |
79072805 LW |
5154 | yylval.ival = OP_CONST; |
5155 | TERM(sublex_start()); | |
5156 | ||
a0d0e21e LW |
5157 | case KEY_quotemeta: |
5158 | UNI(OP_QUOTEMETA); | |
5159 | ||
8990e307 | 5160 | case KEY_qw: |
09bef843 | 5161 | s = scan_str(s,FALSE,FALSE); |
8990e307 | 5162 | if (!s) |
85e6fe83 | 5163 | missingterm((char*)0); |
3480a8d2 | 5164 | PL_expect = XOPERATOR; |
8127e0e3 GS |
5165 | force_next(')'); |
5166 | if (SvCUR(PL_lex_stuff)) { | |
5167 | OP *words = Nullop; | |
5168 | int warned = 0; | |
3280af22 | 5169 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 5170 | while (len) { |
7948272d | 5171 | SV *sv; |
8127e0e3 GS |
5172 | for (; isSPACE(*d) && len; --len, ++d) ; |
5173 | if (len) { | |
f54cb97a | 5174 | const char *b = d; |
e476b1b5 | 5175 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
5176 | for (; !isSPACE(*d) && len; --len, ++d) { |
5177 | if (*d == ',') { | |
9014280d | 5178 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
5179 | "Possible attempt to separate words with commas"); |
5180 | ++warned; | |
5181 | } | |
5182 | else if (*d == '#') { | |
9014280d | 5183 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
5184 | "Possible attempt to put comments in qw() list"); |
5185 | ++warned; | |
5186 | } | |
5187 | } | |
5188 | } | |
5189 | else { | |
5190 | for (; !isSPACE(*d) && len; --len, ++d) ; | |
5191 | } | |
7948272d NIS |
5192 | sv = newSVpvn(b, d-b); |
5193 | if (DO_UTF8(PL_lex_stuff)) | |
5194 | SvUTF8_on(sv); | |
8127e0e3 | 5195 | words = append_elem(OP_LIST, words, |
7948272d | 5196 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 5197 | } |
5198 | } | |
8127e0e3 GS |
5199 | if (words) { |
5200 | PL_nextval[PL_nexttoke].opval = words; | |
5201 | force_next(THING); | |
5202 | } | |
55497cff | 5203 | } |
37fd879b | 5204 | if (PL_lex_stuff) { |
8127e0e3 | 5205 | SvREFCNT_dec(PL_lex_stuff); |
37fd879b HS |
5206 | PL_lex_stuff = Nullsv; |
5207 | } | |
3280af22 | 5208 | PL_expect = XTERM; |
8127e0e3 | 5209 | TOKEN('('); |
8990e307 | 5210 | |
79072805 | 5211 | case KEY_qq: |
09bef843 | 5212 | s = scan_str(s,FALSE,FALSE); |
79072805 | 5213 | if (!s) |
85e6fe83 | 5214 | missingterm((char*)0); |
a0d0e21e | 5215 | yylval.ival = OP_STRINGIFY; |
3280af22 | 5216 | if (SvIVX(PL_lex_stuff) == '\'') |
45977657 | 5217 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
5218 | TERM(sublex_start()); |
5219 | ||
8782bef2 GB |
5220 | case KEY_qr: |
5221 | s = scan_pat(s,OP_QR); | |
5222 | TERM(sublex_start()); | |
5223 | ||
79072805 | 5224 | case KEY_qx: |
09bef843 | 5225 | s = scan_str(s,FALSE,FALSE); |
79072805 | 5226 | if (!s) |
85e6fe83 | 5227 | missingterm((char*)0); |
79072805 LW |
5228 | yylval.ival = OP_BACKTICK; |
5229 | set_csh(); | |
5230 | TERM(sublex_start()); | |
5231 | ||
5232 | case KEY_return: | |
5233 | OLDLOP(OP_RETURN); | |
5234 | ||
5235 | case KEY_require: | |
a7cb1f99 | 5236 | s = skipspace(s); |
e759cc13 RGS |
5237 | if (isDIGIT(*s)) { |
5238 | s = force_version(s, FALSE); | |
a7cb1f99 | 5239 | } |
e759cc13 RGS |
5240 | else if (*s != 'v' || !isDIGIT(s[1]) |
5241 | || (s = force_version(s, TRUE), *s == 'v')) | |
5242 | { | |
a7cb1f99 GS |
5243 | *PL_tokenbuf = '\0'; |
5244 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 5245 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
a7cb1f99 GS |
5246 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), TRUE); |
5247 | else if (*s == '<') | |
5248 | yyerror("<> should be quotes"); | |
5249 | } | |
a72a1c8b RGS |
5250 | if (orig_keyword == KEY_require) { |
5251 | orig_keyword = 0; | |
5252 | yylval.ival = 1; | |
5253 | } | |
5254 | else | |
5255 | yylval.ival = 0; | |
5256 | PL_expect = XTERM; | |
5257 | PL_bufptr = s; | |
5258 | PL_last_uni = PL_oldbufptr; | |
5259 | PL_last_lop_op = OP_REQUIRE; | |
5260 | s = skipspace(s); | |
5261 | return REPORT( (int)REQUIRE ); | |
79072805 LW |
5262 | |
5263 | case KEY_reset: | |
5264 | UNI(OP_RESET); | |
5265 | ||
5266 | case KEY_redo: | |
a0d0e21e | 5267 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5268 | LOOPX(OP_REDO); |
5269 | ||
5270 | case KEY_rename: | |
a0d0e21e | 5271 | LOP(OP_RENAME,XTERM); |
79072805 LW |
5272 | |
5273 | case KEY_rand: | |
5274 | UNI(OP_RAND); | |
5275 | ||
5276 | case KEY_rmdir: | |
5277 | UNI(OP_RMDIR); | |
5278 | ||
5279 | case KEY_rindex: | |
a0d0e21e | 5280 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
5281 | |
5282 | case KEY_read: | |
a0d0e21e | 5283 | LOP(OP_READ,XTERM); |
79072805 LW |
5284 | |
5285 | case KEY_readdir: | |
5286 | UNI(OP_READDIR); | |
5287 | ||
93a17b20 LW |
5288 | case KEY_readline: |
5289 | set_csh(); | |
6f33ba73 | 5290 | UNIDOR(OP_READLINE); |
93a17b20 LW |
5291 | |
5292 | case KEY_readpipe: | |
5293 | set_csh(); | |
5294 | UNI(OP_BACKTICK); | |
5295 | ||
79072805 LW |
5296 | case KEY_rewinddir: |
5297 | UNI(OP_REWINDDIR); | |
5298 | ||
5299 | case KEY_recv: | |
a0d0e21e | 5300 | LOP(OP_RECV,XTERM); |
79072805 LW |
5301 | |
5302 | case KEY_reverse: | |
a0d0e21e | 5303 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
5304 | |
5305 | case KEY_readlink: | |
6f33ba73 | 5306 | UNIDOR(OP_READLINK); |
79072805 LW |
5307 | |
5308 | case KEY_ref: | |
5309 | UNI(OP_REF); | |
5310 | ||
5311 | case KEY_s: | |
5312 | s = scan_subst(s); | |
5313 | if (yylval.opval) | |
5314 | TERM(sublex_start()); | |
5315 | else | |
5316 | TOKEN(1); /* force error */ | |
5317 | ||
0d863452 RH |
5318 | case KEY_say: |
5319 | checkcomma(s,PL_tokenbuf,"filehandle"); | |
5320 | LOP(OP_SAY,XREF); | |
5321 | ||
a0d0e21e LW |
5322 | case KEY_chomp: |
5323 | UNI(OP_CHOMP); | |
4e553d73 | 5324 | |
79072805 LW |
5325 | case KEY_scalar: |
5326 | UNI(OP_SCALAR); | |
5327 | ||
5328 | case KEY_select: | |
a0d0e21e | 5329 | LOP(OP_SELECT,XTERM); |
79072805 LW |
5330 | |
5331 | case KEY_seek: | |
a0d0e21e | 5332 | LOP(OP_SEEK,XTERM); |
79072805 LW |
5333 | |
5334 | case KEY_semctl: | |
a0d0e21e | 5335 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
5336 | |
5337 | case KEY_semget: | |
a0d0e21e | 5338 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
5339 | |
5340 | case KEY_semop: | |
a0d0e21e | 5341 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
5342 | |
5343 | case KEY_send: | |
a0d0e21e | 5344 | LOP(OP_SEND,XTERM); |
79072805 LW |
5345 | |
5346 | case KEY_setpgrp: | |
a0d0e21e | 5347 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
5348 | |
5349 | case KEY_setpriority: | |
a0d0e21e | 5350 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
5351 | |
5352 | case KEY_sethostent: | |
ff68c719 | 5353 | UNI(OP_SHOSTENT); |
79072805 LW |
5354 | |
5355 | case KEY_setnetent: | |
ff68c719 | 5356 | UNI(OP_SNETENT); |
79072805 LW |
5357 | |
5358 | case KEY_setservent: | |
ff68c719 | 5359 | UNI(OP_SSERVENT); |
79072805 LW |
5360 | |
5361 | case KEY_setprotoent: | |
ff68c719 | 5362 | UNI(OP_SPROTOENT); |
79072805 LW |
5363 | |
5364 | case KEY_setpwent: | |
5365 | FUN0(OP_SPWENT); | |
5366 | ||
5367 | case KEY_setgrent: | |
5368 | FUN0(OP_SGRENT); | |
5369 | ||
5370 | case KEY_seekdir: | |
a0d0e21e | 5371 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
5372 | |
5373 | case KEY_setsockopt: | |
a0d0e21e | 5374 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
5375 | |
5376 | case KEY_shift: | |
6f33ba73 | 5377 | UNIDOR(OP_SHIFT); |
79072805 LW |
5378 | |
5379 | case KEY_shmctl: | |
a0d0e21e | 5380 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
5381 | |
5382 | case KEY_shmget: | |
a0d0e21e | 5383 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
5384 | |
5385 | case KEY_shmread: | |
a0d0e21e | 5386 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
5387 | |
5388 | case KEY_shmwrite: | |
a0d0e21e | 5389 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
5390 | |
5391 | case KEY_shutdown: | |
a0d0e21e | 5392 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
5393 | |
5394 | case KEY_sin: | |
5395 | UNI(OP_SIN); | |
5396 | ||
5397 | case KEY_sleep: | |
5398 | UNI(OP_SLEEP); | |
5399 | ||
5400 | case KEY_socket: | |
a0d0e21e | 5401 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
5402 | |
5403 | case KEY_socketpair: | |
a0d0e21e | 5404 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
5405 | |
5406 | case KEY_sort: | |
3280af22 | 5407 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
79072805 LW |
5408 | s = skipspace(s); |
5409 | if (*s == ';' || *s == ')') /* probably a close */ | |
cea2e8a9 | 5410 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 5411 | PL_expect = XTERM; |
15f0808c | 5412 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 5413 | LOP(OP_SORT,XREF); |
79072805 LW |
5414 | |
5415 | case KEY_split: | |
a0d0e21e | 5416 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
5417 | |
5418 | case KEY_sprintf: | |
a0d0e21e | 5419 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
5420 | |
5421 | case KEY_splice: | |
a0d0e21e | 5422 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
5423 | |
5424 | case KEY_sqrt: | |
5425 | UNI(OP_SQRT); | |
5426 | ||
5427 | case KEY_srand: | |
5428 | UNI(OP_SRAND); | |
5429 | ||
5430 | case KEY_stat: | |
5431 | UNI(OP_STAT); | |
5432 | ||
5433 | case KEY_study: | |
79072805 LW |
5434 | UNI(OP_STUDY); |
5435 | ||
5436 | case KEY_substr: | |
a0d0e21e | 5437 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
5438 | |
5439 | case KEY_format: | |
5440 | case KEY_sub: | |
93a17b20 | 5441 | really_sub: |
09bef843 | 5442 | { |
3280af22 | 5443 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 5444 | SSize_t tboffset = 0; |
09bef843 | 5445 | expectation attrful; |
d731386a | 5446 | bool have_name, have_proto, bad_proto; |
f54cb97a | 5447 | const int key = tmp; |
09bef843 SB |
5448 | |
5449 | s = skipspace(s); | |
5450 | ||
7e2040f0 | 5451 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
5452 | (*s == ':' && s[1] == ':')) |
5453 | { | |
5454 | PL_expect = XBLOCK; | |
5455 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
5456 | /* remember buffer pos'n for later force_word */ |
5457 | tboffset = s - PL_oldbufptr; | |
09bef843 SB |
5458 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5459 | if (strchr(tmpbuf, ':')) | |
5460 | sv_setpv(PL_subname, tmpbuf); | |
5461 | else { | |
5462 | sv_setsv(PL_subname,PL_curstname); | |
396482e1 | 5463 | sv_catpvs(PL_subname,"::"); |
09bef843 SB |
5464 | sv_catpvn(PL_subname,tmpbuf,len); |
5465 | } | |
5466 | s = skipspace(d); | |
5467 | have_name = TRUE; | |
5468 | } | |
463ee0b2 | 5469 | else { |
09bef843 SB |
5470 | if (key == KEY_my) |
5471 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
5472 | PL_expect = XTERMBLOCK; | |
5473 | attrful = XATTRTERM; | |
c69006e4 | 5474 | sv_setpvn(PL_subname,"?",1); |
09bef843 | 5475 | have_name = FALSE; |
463ee0b2 | 5476 | } |
4633a7c4 | 5477 | |
09bef843 SB |
5478 | if (key == KEY_format) { |
5479 | if (*s == '=') | |
5480 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5481 | if (have_name) | |
b1b65b59 JH |
5482 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
5483 | FALSE, TRUE, TRUE); | |
09bef843 SB |
5484 | OPERATOR(FORMAT); |
5485 | } | |
79072805 | 5486 | |
09bef843 SB |
5487 | /* Look for a prototype */ |
5488 | if (*s == '(') { | |
5489 | char *p; | |
5490 | ||
5491 | s = scan_str(s,FALSE,FALSE); | |
37fd879b | 5492 | if (!s) |
09bef843 | 5493 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 5494 | /* strip spaces and check for bad characters */ |
09bef843 SB |
5495 | d = SvPVX(PL_lex_stuff); |
5496 | tmp = 0; | |
d731386a | 5497 | bad_proto = FALSE; |
09bef843 | 5498 | for (p = d; *p; ++p) { |
d37a9538 | 5499 | if (!isSPACE(*p)) { |
09bef843 | 5500 | d[tmp++] = *p; |
d37a9538 ST |
5501 | if (!strchr("$@%*;[]&\\", *p)) |
5502 | bad_proto = TRUE; | |
5503 | } | |
09bef843 SB |
5504 | } |
5505 | d[tmp] = '\0'; | |
420cdfc1 | 5506 | if (bad_proto && ckWARN(WARN_SYNTAX)) |
9014280d | 5507 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
35c1215d NC |
5508 | "Illegal character in prototype for %"SVf" : %s", |
5509 | PL_subname, d); | |
b162af07 | 5510 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 5511 | have_proto = TRUE; |
68dc0745 | 5512 | |
09bef843 | 5513 | s = skipspace(s); |
4633a7c4 | 5514 | } |
09bef843 SB |
5515 | else |
5516 | have_proto = FALSE; | |
5517 | ||
5518 | if (*s == ':' && s[1] != ':') | |
5519 | PL_expect = attrful; | |
8e742a20 MHM |
5520 | else if (*s != '{' && key == KEY_sub) { |
5521 | if (!have_name) | |
5522 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
5523 | else if (*s != ';') | |
5524 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, PL_subname); | |
5525 | } | |
09bef843 SB |
5526 | |
5527 | if (have_proto) { | |
b1b65b59 JH |
5528 | PL_nextval[PL_nexttoke].opval = |
5529 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
09bef843 SB |
5530 | PL_lex_stuff = Nullsv; |
5531 | force_next(THING); | |
68dc0745 | 5532 | } |
09bef843 | 5533 | if (!have_name) { |
c99da370 JH |
5534 | sv_setpv(PL_subname, |
5535 | PL_curstash ? "__ANON__" : "__ANON__::__ANON__"); | |
09bef843 | 5536 | TOKEN(ANONSUB); |
4633a7c4 | 5537 | } |
b1b65b59 JH |
5538 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
5539 | FALSE, TRUE, TRUE); | |
09bef843 SB |
5540 | if (key == KEY_my) |
5541 | TOKEN(MYSUB); | |
5542 | TOKEN(SUB); | |
4633a7c4 | 5543 | } |
79072805 LW |
5544 | |
5545 | case KEY_system: | |
5546 | set_csh(); | |
a0d0e21e | 5547 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
5548 | |
5549 | case KEY_symlink: | |
a0d0e21e | 5550 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
5551 | |
5552 | case KEY_syscall: | |
a0d0e21e | 5553 | LOP(OP_SYSCALL,XTERM); |
79072805 | 5554 | |
c07a80fd | 5555 | case KEY_sysopen: |
5556 | LOP(OP_SYSOPEN,XTERM); | |
5557 | ||
137443ea | 5558 | case KEY_sysseek: |
5559 | LOP(OP_SYSSEEK,XTERM); | |
5560 | ||
79072805 | 5561 | case KEY_sysread: |
a0d0e21e | 5562 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
5563 | |
5564 | case KEY_syswrite: | |
a0d0e21e | 5565 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
5566 | |
5567 | case KEY_tr: | |
5568 | s = scan_trans(s); | |
5569 | TERM(sublex_start()); | |
5570 | ||
5571 | case KEY_tell: | |
5572 | UNI(OP_TELL); | |
5573 | ||
5574 | case KEY_telldir: | |
5575 | UNI(OP_TELLDIR); | |
5576 | ||
463ee0b2 | 5577 | case KEY_tie: |
a0d0e21e | 5578 | LOP(OP_TIE,XTERM); |
463ee0b2 | 5579 | |
c07a80fd | 5580 | case KEY_tied: |
5581 | UNI(OP_TIED); | |
5582 | ||
79072805 LW |
5583 | case KEY_time: |
5584 | FUN0(OP_TIME); | |
5585 | ||
5586 | case KEY_times: | |
5587 | FUN0(OP_TMS); | |
5588 | ||
5589 | case KEY_truncate: | |
a0d0e21e | 5590 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
5591 | |
5592 | case KEY_uc: | |
5593 | UNI(OP_UC); | |
5594 | ||
5595 | case KEY_ucfirst: | |
5596 | UNI(OP_UCFIRST); | |
5597 | ||
463ee0b2 LW |
5598 | case KEY_untie: |
5599 | UNI(OP_UNTIE); | |
5600 | ||
79072805 | 5601 | case KEY_until: |
57843af0 | 5602 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5603 | OPERATOR(UNTIL); |
5604 | ||
5605 | case KEY_unless: | |
57843af0 | 5606 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5607 | OPERATOR(UNLESS); |
5608 | ||
5609 | case KEY_unlink: | |
a0d0e21e | 5610 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
5611 | |
5612 | case KEY_undef: | |
6f33ba73 | 5613 | UNIDOR(OP_UNDEF); |
79072805 LW |
5614 | |
5615 | case KEY_unpack: | |
a0d0e21e | 5616 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
5617 | |
5618 | case KEY_utime: | |
a0d0e21e | 5619 | LOP(OP_UTIME,XTERM); |
79072805 LW |
5620 | |
5621 | case KEY_umask: | |
6f33ba73 | 5622 | UNIDOR(OP_UMASK); |
79072805 LW |
5623 | |
5624 | case KEY_unshift: | |
a0d0e21e LW |
5625 | LOP(OP_UNSHIFT,XTERM); |
5626 | ||
5627 | case KEY_use: | |
468aa647 | 5628 | s = tokenize_use(1, s); |
a0d0e21e | 5629 | OPERATOR(USE); |
79072805 LW |
5630 | |
5631 | case KEY_values: | |
5632 | UNI(OP_VALUES); | |
5633 | ||
5634 | case KEY_vec: | |
a0d0e21e | 5635 | LOP(OP_VEC,XTERM); |
79072805 | 5636 | |
0d863452 RH |
5637 | case KEY_when: |
5638 | yylval.ival = CopLINE(PL_curcop); | |
5639 | OPERATOR(WHEN); | |
5640 | ||
79072805 | 5641 | case KEY_while: |
57843af0 | 5642 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5643 | OPERATOR(WHILE); |
5644 | ||
5645 | case KEY_warn: | |
3280af22 | 5646 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 5647 | LOP(OP_WARN,XTERM); |
79072805 LW |
5648 | |
5649 | case KEY_wait: | |
5650 | FUN0(OP_WAIT); | |
5651 | ||
5652 | case KEY_waitpid: | |
a0d0e21e | 5653 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
5654 | |
5655 | case KEY_wantarray: | |
5656 | FUN0(OP_WANTARRAY); | |
5657 | ||
5658 | case KEY_write: | |
9d116dd7 JH |
5659 | #ifdef EBCDIC |
5660 | { | |
df3728a2 JH |
5661 | char ctl_l[2]; |
5662 | ctl_l[0] = toCTRL('L'); | |
5663 | ctl_l[1] = '\0'; | |
f776e3cd | 5664 | gv_fetchpv(ctl_l, GV_ADD, SVt_PV); |
9d116dd7 JH |
5665 | } |
5666 | #else | |
f776e3cd | 5667 | gv_fetchpv("\f", GV_ADD, SVt_PV); /* Make sure $^L is defined */ |
9d116dd7 | 5668 | #endif |
79072805 LW |
5669 | UNI(OP_ENTERWRITE); |
5670 | ||
5671 | case KEY_x: | |
3280af22 | 5672 | if (PL_expect == XOPERATOR) |
79072805 LW |
5673 | Mop(OP_REPEAT); |
5674 | check_uni(); | |
5675 | goto just_a_word; | |
5676 | ||
a0d0e21e LW |
5677 | case KEY_xor: |
5678 | yylval.ival = OP_XOR; | |
5679 | OPERATOR(OROP); | |
5680 | ||
79072805 LW |
5681 | case KEY_y: |
5682 | s = scan_trans(s); | |
5683 | TERM(sublex_start()); | |
5684 | } | |
49dc05e3 | 5685 | }} |
79072805 | 5686 | } |
bf4acbe4 GS |
5687 | #ifdef __SC__ |
5688 | #pragma segment Main | |
5689 | #endif | |
79072805 | 5690 | |
e930465f JH |
5691 | static int |
5692 | S_pending_ident(pTHX) | |
8eceec63 | 5693 | { |
97aff369 | 5694 | dVAR; |
8eceec63 | 5695 | register char *d; |
a55b55d8 | 5696 | register I32 tmp = 0; |
8eceec63 SC |
5697 | /* pit holds the identifier we read and pending_ident is reset */ |
5698 | char pit = PL_pending_ident; | |
5699 | PL_pending_ident = 0; | |
5700 | ||
5701 | DEBUG_T({ PerlIO_printf(Perl_debug_log, | |
b6007c36 | 5702 | "### Pending identifier '%s'\n", PL_tokenbuf); }); |
8eceec63 SC |
5703 | |
5704 | /* if we're in a my(), we can't allow dynamics here. | |
5705 | $foo'bar has already been turned into $foo::bar, so | |
5706 | just check for colons. | |
5707 | ||
5708 | if it's a legal name, the OP is a PADANY. | |
5709 | */ | |
5710 | if (PL_in_my) { | |
5711 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
5712 | if (strchr(PL_tokenbuf,':')) | |
5713 | yyerror(Perl_form(aTHX_ "No package name allowed for " | |
5714 | "variable %s in \"our\"", | |
5715 | PL_tokenbuf)); | |
dd2155a4 | 5716 | tmp = allocmy(PL_tokenbuf); |
8eceec63 SC |
5717 | } |
5718 | else { | |
5719 | if (strchr(PL_tokenbuf,':')) | |
5720 | yyerror(Perl_form(aTHX_ PL_no_myglob,PL_tokenbuf)); | |
5721 | ||
5722 | yylval.opval = newOP(OP_PADANY, 0); | |
dd2155a4 | 5723 | yylval.opval->op_targ = allocmy(PL_tokenbuf); |
8eceec63 SC |
5724 | return PRIVATEREF; |
5725 | } | |
5726 | } | |
5727 | ||
5728 | /* | |
5729 | build the ops for accesses to a my() variable. | |
5730 | ||
5731 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
5732 | then used in a comparison. This catches most, but not | |
5733 | all cases. For instance, it catches | |
5734 | sort { my($a); $a <=> $b } | |
5735 | but not | |
5736 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
5737 | (although why you'd do that is anyone's guess). | |
5738 | */ | |
5739 | ||
5740 | if (!strchr(PL_tokenbuf,':')) { | |
8716503d DM |
5741 | if (!PL_in_my) |
5742 | tmp = pad_findmy(PL_tokenbuf); | |
5743 | if (tmp != NOT_IN_PAD) { | |
8eceec63 | 5744 | /* might be an "our" variable" */ |
dd2155a4 | 5745 | if (PAD_COMPNAME_FLAGS(tmp) & SVpad_OUR) { |
8eceec63 | 5746 | /* build ops for a bareword */ |
b64e5050 AL |
5747 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
5748 | HEK * const stashname = HvNAME_HEK(stash); | |
5749 | SV * const sym = newSVhek(stashname); | |
396482e1 | 5750 | sv_catpvs(sym, "::"); |
8eceec63 SC |
5751 | sv_catpv(sym, PL_tokenbuf+1); |
5752 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); | |
5753 | yylval.opval->op_private = OPpCONST_ENTERED; | |
7a5fd60d | 5754 | gv_fetchsv(sym, |
8eceec63 SC |
5755 | (PL_in_eval |
5756 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 5757 | : GV_ADDMULTI |
8eceec63 SC |
5758 | ), |
5759 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
5760 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
5761 | : SVt_PVHV)); | |
5762 | return WORD; | |
5763 | } | |
5764 | ||
5765 | /* if it's a sort block and they're naming $a or $b */ | |
5766 | if (PL_last_lop_op == OP_SORT && | |
5767 | PL_tokenbuf[0] == '$' && | |
5768 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
5769 | && !PL_tokenbuf[2]) | |
5770 | { | |
5771 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
5772 | d < PL_bufend && *d != '\n'; | |
5773 | d++) | |
5774 | { | |
5775 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
5776 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
5777 | PL_tokenbuf); | |
5778 | } | |
5779 | } | |
5780 | } | |
5781 | ||
5782 | yylval.opval = newOP(OP_PADANY, 0); | |
5783 | yylval.opval->op_targ = tmp; | |
5784 | return PRIVATEREF; | |
5785 | } | |
5786 | } | |
5787 | ||
5788 | /* | |
5789 | Whine if they've said @foo in a doublequoted string, | |
5790 | and @foo isn't a variable we can find in the symbol | |
5791 | table. | |
5792 | */ | |
5793 | if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
f776e3cd | 5794 | GV *gv = gv_fetchpv(PL_tokenbuf+1, 0, SVt_PVAV); |
8eceec63 SC |
5795 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
5796 | && ckWARN(WARN_AMBIGUOUS)) | |
5797 | { | |
5798 | /* Downgraded from fatal to warning 20000522 mjd */ | |
9014280d | 5799 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
8eceec63 SC |
5800 | "Possible unintended interpolation of %s in string", |
5801 | PL_tokenbuf); | |
5802 | } | |
5803 | } | |
5804 | ||
5805 | /* build ops for a bareword */ | |
5806 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf+1, 0)); | |
5807 | yylval.opval->op_private = OPpCONST_ENTERED; | |
adc51b97 RGS |
5808 | gv_fetchpv( |
5809 | PL_tokenbuf+1, | |
d6069db2 RGS |
5810 | /* If the identifier refers to a stash, don't autovivify it. |
5811 | * Change 24660 had the side effect of causing symbol table | |
5812 | * hashes to always be defined, even if they were freshly | |
5813 | * created and the only reference in the entire program was | |
5814 | * the single statement with the defined %foo::bar:: test. | |
5815 | * It appears that all code in the wild doing this actually | |
5816 | * wants to know whether sub-packages have been loaded, so | |
5817 | * by avoiding auto-vivifying symbol tables, we ensure that | |
5818 | * defined %foo::bar:: continues to be false, and the existing | |
5819 | * tests still give the expected answers, even though what | |
5820 | * they're actually testing has now changed subtly. | |
5821 | */ | |
5822 | (*PL_tokenbuf == '%' && *(d = PL_tokenbuf + strlen(PL_tokenbuf) - 1) == ':' && d[-1] == ':' | |
5823 | ? 0 | |
5824 | : PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD), | |
adc51b97 RGS |
5825 | ((PL_tokenbuf[0] == '$') ? SVt_PV |
5826 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
5827 | : SVt_PVHV)); | |
8eceec63 SC |
5828 | return WORD; |
5829 | } | |
5830 | ||
4c3bbe0f MHM |
5831 | /* |
5832 | * The following code was generated by perl_keyword.pl. | |
5833 | */ | |
e2e1dd5a | 5834 | |
79072805 | 5835 | I32 |
672994ce | 5836 | Perl_keyword (pTHX_ const char *name, I32 len) |
4c3bbe0f | 5837 | { |
97aff369 | 5838 | dVAR; |
4c3bbe0f MHM |
5839 | switch (len) |
5840 | { | |
5841 | case 1: /* 5 tokens of length 1 */ | |
5842 | switch (name[0]) | |
e2e1dd5a | 5843 | { |
4c3bbe0f MHM |
5844 | case 'm': |
5845 | { /* m */ | |
5846 | return KEY_m; | |
5847 | } | |
5848 | ||
4c3bbe0f MHM |
5849 | case 'q': |
5850 | { /* q */ | |
5851 | return KEY_q; | |
5852 | } | |
5853 | ||
4c3bbe0f MHM |
5854 | case 's': |
5855 | { /* s */ | |
5856 | return KEY_s; | |
5857 | } | |
5858 | ||
4c3bbe0f MHM |
5859 | case 'x': |
5860 | { /* x */ | |
5861 | return -KEY_x; | |
5862 | } | |
5863 | ||
4c3bbe0f MHM |
5864 | case 'y': |
5865 | { /* y */ | |
5866 | return KEY_y; | |
5867 | } | |
5868 | ||
4c3bbe0f MHM |
5869 | default: |
5870 | goto unknown; | |
e2e1dd5a | 5871 | } |
4c3bbe0f MHM |
5872 | |
5873 | case 2: /* 18 tokens of length 2 */ | |
5874 | switch (name[0]) | |
e2e1dd5a | 5875 | { |
4c3bbe0f MHM |
5876 | case 'd': |
5877 | if (name[1] == 'o') | |
5878 | { /* do */ | |
5879 | return KEY_do; | |
5880 | } | |
5881 | ||
5882 | goto unknown; | |
5883 | ||
5884 | case 'e': | |
5885 | if (name[1] == 'q') | |
5886 | { /* eq */ | |
5887 | return -KEY_eq; | |
5888 | } | |
5889 | ||
5890 | goto unknown; | |
5891 | ||
5892 | case 'g': | |
5893 | switch (name[1]) | |
5894 | { | |
5895 | case 'e': | |
5896 | { /* ge */ | |
5897 | return -KEY_ge; | |
5898 | } | |
5899 | ||
4c3bbe0f MHM |
5900 | case 't': |
5901 | { /* gt */ | |
5902 | return -KEY_gt; | |
5903 | } | |
5904 | ||
4c3bbe0f MHM |
5905 | default: |
5906 | goto unknown; | |
5907 | } | |
5908 | ||
5909 | case 'i': | |
5910 | if (name[1] == 'f') | |
5911 | { /* if */ | |
5912 | return KEY_if; | |
5913 | } | |
5914 | ||
5915 | goto unknown; | |
5916 | ||
5917 | case 'l': | |
5918 | switch (name[1]) | |
5919 | { | |
5920 | case 'c': | |
5921 | { /* lc */ | |
5922 | return -KEY_lc; | |
5923 | } | |
5924 | ||
4c3bbe0f MHM |
5925 | case 'e': |
5926 | { /* le */ | |
5927 | return -KEY_le; | |
5928 | } | |
5929 | ||
4c3bbe0f MHM |
5930 | case 't': |
5931 | { /* lt */ | |
5932 | return -KEY_lt; | |
5933 | } | |
5934 | ||
4c3bbe0f MHM |
5935 | default: |
5936 | goto unknown; | |
5937 | } | |
5938 | ||
5939 | case 'm': | |
5940 | if (name[1] == 'y') | |
5941 | { /* my */ | |
5942 | return KEY_my; | |
5943 | } | |
5944 | ||
5945 | goto unknown; | |
5946 | ||
5947 | case 'n': | |
5948 | switch (name[1]) | |
5949 | { | |
5950 | case 'e': | |
5951 | { /* ne */ | |
5952 | return -KEY_ne; | |
5953 | } | |
5954 | ||
4c3bbe0f MHM |
5955 | case 'o': |
5956 | { /* no */ | |
5957 | return KEY_no; | |
5958 | } | |
5959 | ||
4c3bbe0f MHM |
5960 | default: |
5961 | goto unknown; | |
5962 | } | |
5963 | ||
5964 | case 'o': | |
5965 | if (name[1] == 'r') | |
5966 | { /* or */ | |
5967 | return -KEY_or; | |
5968 | } | |
5969 | ||
5970 | goto unknown; | |
5971 | ||
5972 | case 'q': | |
5973 | switch (name[1]) | |
5974 | { | |
5975 | case 'q': | |
5976 | { /* qq */ | |
5977 | return KEY_qq; | |
5978 | } | |
5979 | ||
4c3bbe0f MHM |
5980 | case 'r': |
5981 | { /* qr */ | |
5982 | return KEY_qr; | |
5983 | } | |
5984 | ||
4c3bbe0f MHM |
5985 | case 'w': |
5986 | { /* qw */ | |
5987 | return KEY_qw; | |
5988 | } | |
5989 | ||
4c3bbe0f MHM |
5990 | case 'x': |
5991 | { /* qx */ | |
5992 | return KEY_qx; | |
5993 | } | |
5994 | ||
4c3bbe0f MHM |
5995 | default: |
5996 | goto unknown; | |
5997 | } | |
5998 | ||
5999 | case 't': | |
6000 | if (name[1] == 'r') | |
6001 | { /* tr */ | |
6002 | return KEY_tr; | |
6003 | } | |
6004 | ||
6005 | goto unknown; | |
6006 | ||
6007 | case 'u': | |
6008 | if (name[1] == 'c') | |
6009 | { /* uc */ | |
6010 | return -KEY_uc; | |
6011 | } | |
6012 | ||
6013 | goto unknown; | |
6014 | ||
6015 | default: | |
6016 | goto unknown; | |
e2e1dd5a | 6017 | } |
4c3bbe0f | 6018 | |
0d863452 | 6019 | case 3: /* 29 tokens of length 3 */ |
4c3bbe0f | 6020 | switch (name[0]) |
e2e1dd5a | 6021 | { |
4c3bbe0f MHM |
6022 | case 'E': |
6023 | if (name[1] == 'N' && | |
6024 | name[2] == 'D') | |
6025 | { /* END */ | |
6026 | return KEY_END; | |
6027 | } | |
6028 | ||
6029 | goto unknown; | |
6030 | ||
6031 | case 'a': | |
6032 | switch (name[1]) | |
6033 | { | |
6034 | case 'b': | |
6035 | if (name[2] == 's') | |
6036 | { /* abs */ | |
6037 | return -KEY_abs; | |
6038 | } | |
6039 | ||
6040 | goto unknown; | |
6041 | ||
6042 | case 'n': | |
6043 | if (name[2] == 'd') | |
6044 | { /* and */ | |
6045 | return -KEY_and; | |
6046 | } | |
6047 | ||
6048 | goto unknown; | |
6049 | ||
6050 | default: | |
6051 | goto unknown; | |
6052 | } | |
6053 | ||
6054 | case 'c': | |
6055 | switch (name[1]) | |
6056 | { | |
6057 | case 'h': | |
6058 | if (name[2] == 'r') | |
6059 | { /* chr */ | |
6060 | return -KEY_chr; | |
6061 | } | |
6062 | ||
6063 | goto unknown; | |
6064 | ||
6065 | case 'm': | |
6066 | if (name[2] == 'p') | |
6067 | { /* cmp */ | |
6068 | return -KEY_cmp; | |
6069 | } | |
6070 | ||
6071 | goto unknown; | |
6072 | ||
6073 | case 'o': | |
6074 | if (name[2] == 's') | |
6075 | { /* cos */ | |
6076 | return -KEY_cos; | |
6077 | } | |
6078 | ||
6079 | goto unknown; | |
6080 | ||
6081 | default: | |
6082 | goto unknown; | |
6083 | } | |
6084 | ||
6085 | case 'd': | |
6086 | if (name[1] == 'i' && | |
6087 | name[2] == 'e') | |
6088 | { /* die */ | |
6089 | return -KEY_die; | |
6090 | } | |
6091 | ||
6092 | goto unknown; | |
6093 | ||
6094 | case 'e': | |
6095 | switch (name[1]) | |
6096 | { | |
6097 | case 'o': | |
6098 | if (name[2] == 'f') | |
6099 | { /* eof */ | |
6100 | return -KEY_eof; | |
6101 | } | |
6102 | ||
6103 | goto unknown; | |
6104 | ||
6105 | case 'r': | |
6106 | if (name[2] == 'r') | |
6107 | { /* err */ | |
ef89dcc3 | 6108 | return (FEATURE_IS_ENABLED("err") ? -KEY_err : 0); |
4c3bbe0f MHM |
6109 | } |
6110 | ||
6111 | goto unknown; | |
6112 | ||
6113 | case 'x': | |
6114 | if (name[2] == 'p') | |
6115 | { /* exp */ | |
6116 | return -KEY_exp; | |
6117 | } | |
6118 | ||
6119 | goto unknown; | |
6120 | ||
6121 | default: | |
6122 | goto unknown; | |
6123 | } | |
6124 | ||
6125 | case 'f': | |
6126 | if (name[1] == 'o' && | |
6127 | name[2] == 'r') | |
6128 | { /* for */ | |
6129 | return KEY_for; | |
6130 | } | |
6131 | ||
6132 | goto unknown; | |
6133 | ||
6134 | case 'h': | |
6135 | if (name[1] == 'e' && | |
6136 | name[2] == 'x') | |
6137 | { /* hex */ | |
6138 | return -KEY_hex; | |
6139 | } | |
6140 | ||
6141 | goto unknown; | |
6142 | ||
6143 | case 'i': | |
6144 | if (name[1] == 'n' && | |
6145 | name[2] == 't') | |
6146 | { /* int */ | |
6147 | return -KEY_int; | |
6148 | } | |
6149 | ||
6150 | goto unknown; | |
6151 | ||
6152 | case 'l': | |
6153 | if (name[1] == 'o' && | |
6154 | name[2] == 'g') | |
6155 | { /* log */ | |
6156 | return -KEY_log; | |
6157 | } | |
6158 | ||
6159 | goto unknown; | |
6160 | ||
6161 | case 'm': | |
6162 | if (name[1] == 'a' && | |
6163 | name[2] == 'p') | |
6164 | { /* map */ | |
6165 | return KEY_map; | |
6166 | } | |
6167 | ||
6168 | goto unknown; | |
6169 | ||
6170 | case 'n': | |
6171 | if (name[1] == 'o' && | |
6172 | name[2] == 't') | |
6173 | { /* not */ | |
6174 | return -KEY_not; | |
6175 | } | |
6176 | ||
6177 | goto unknown; | |
6178 | ||
6179 | case 'o': | |
6180 | switch (name[1]) | |
6181 | { | |
6182 | case 'c': | |
6183 | if (name[2] == 't') | |
6184 | { /* oct */ | |
6185 | return -KEY_oct; | |
6186 | } | |
6187 | ||
6188 | goto unknown; | |
6189 | ||
6190 | case 'r': | |
6191 | if (name[2] == 'd') | |
6192 | { /* ord */ | |
6193 | return -KEY_ord; | |
6194 | } | |
6195 | ||
6196 | goto unknown; | |
6197 | ||
6198 | case 'u': | |
6199 | if (name[2] == 'r') | |
6200 | { /* our */ | |
6201 | return KEY_our; | |
6202 | } | |
6203 | ||
6204 | goto unknown; | |
6205 | ||
6206 | default: | |
6207 | goto unknown; | |
6208 | } | |
6209 | ||
6210 | case 'p': | |
6211 | if (name[1] == 'o') | |
6212 | { | |
6213 | switch (name[2]) | |
6214 | { | |
6215 | case 'p': | |
6216 | { /* pop */ | |
6217 | return -KEY_pop; | |
6218 | } | |
6219 | ||
4c3bbe0f MHM |
6220 | case 's': |
6221 | { /* pos */ | |
6222 | return KEY_pos; | |
6223 | } | |
6224 | ||
4c3bbe0f MHM |
6225 | default: |
6226 | goto unknown; | |
6227 | } | |
6228 | } | |
6229 | ||
6230 | goto unknown; | |
6231 | ||
6232 | case 'r': | |
6233 | if (name[1] == 'e' && | |
6234 | name[2] == 'f') | |
6235 | { /* ref */ | |
6236 | return -KEY_ref; | |
6237 | } | |
6238 | ||
6239 | goto unknown; | |
6240 | ||
6241 | case 's': | |
6242 | switch (name[1]) | |
6243 | { | |
0d863452 RH |
6244 | case 'a': |
6245 | if (name[2] == 'y') | |
6246 | { /* say */ | |
ef89dcc3 | 6247 | return (FEATURE_IS_ENABLED("say") ? -KEY_say : 0); |
0d863452 RH |
6248 | } |
6249 | ||
6250 | goto unknown; | |
6251 | ||
4c3bbe0f MHM |
6252 | case 'i': |
6253 | if (name[2] == 'n') | |
6254 | { /* sin */ | |
6255 | return -KEY_sin; | |
6256 | } | |
6257 | ||
6258 | goto unknown; | |
6259 | ||
6260 | case 'u': | |
6261 | if (name[2] == 'b') | |
6262 | { /* sub */ | |
6263 | return KEY_sub; | |
6264 | } | |
6265 | ||
6266 | goto unknown; | |
6267 | ||
6268 | default: | |
6269 | goto unknown; | |
6270 | } | |
6271 | ||
6272 | case 't': | |
6273 | if (name[1] == 'i' && | |
6274 | name[2] == 'e') | |
6275 | { /* tie */ | |
6276 | return KEY_tie; | |
6277 | } | |
6278 | ||
6279 | goto unknown; | |
6280 | ||
6281 | case 'u': | |
6282 | if (name[1] == 's' && | |
6283 | name[2] == 'e') | |
6284 | { /* use */ | |
6285 | return KEY_use; | |
6286 | } | |
6287 | ||
6288 | goto unknown; | |
6289 | ||
6290 | case 'v': | |
6291 | if (name[1] == 'e' && | |
6292 | name[2] == 'c') | |
6293 | { /* vec */ | |
6294 | return -KEY_vec; | |
6295 | } | |
6296 | ||
6297 | goto unknown; | |
6298 | ||
6299 | case 'x': | |
6300 | if (name[1] == 'o' && | |
6301 | name[2] == 'r') | |
6302 | { /* xor */ | |
6303 | return -KEY_xor; | |
6304 | } | |
6305 | ||
6306 | goto unknown; | |
6307 | ||
6308 | default: | |
6309 | goto unknown; | |
e2e1dd5a | 6310 | } |
4c3bbe0f | 6311 | |
0d863452 | 6312 | case 4: /* 41 tokens of length 4 */ |
4c3bbe0f | 6313 | switch (name[0]) |
e2e1dd5a | 6314 | { |
4c3bbe0f MHM |
6315 | case 'C': |
6316 | if (name[1] == 'O' && | |
6317 | name[2] == 'R' && | |
6318 | name[3] == 'E') | |
6319 | { /* CORE */ | |
6320 | return -KEY_CORE; | |
6321 | } | |
6322 | ||
6323 | goto unknown; | |
6324 | ||
6325 | case 'I': | |
6326 | if (name[1] == 'N' && | |
6327 | name[2] == 'I' && | |
6328 | name[3] == 'T') | |
6329 | { /* INIT */ | |
6330 | return KEY_INIT; | |
6331 | } | |
6332 | ||
6333 | goto unknown; | |
6334 | ||
6335 | case 'b': | |
6336 | if (name[1] == 'i' && | |
6337 | name[2] == 'n' && | |
6338 | name[3] == 'd') | |
6339 | { /* bind */ | |
6340 | return -KEY_bind; | |
6341 | } | |
6342 | ||
6343 | goto unknown; | |
6344 | ||
6345 | case 'c': | |
6346 | if (name[1] == 'h' && | |
6347 | name[2] == 'o' && | |
6348 | name[3] == 'p') | |
6349 | { /* chop */ | |
6350 | return -KEY_chop; | |
6351 | } | |
6352 | ||
6353 | goto unknown; | |
6354 | ||
6355 | case 'd': | |
6356 | if (name[1] == 'u' && | |
6357 | name[2] == 'm' && | |
6358 | name[3] == 'p') | |
6359 | { /* dump */ | |
6360 | return -KEY_dump; | |
6361 | } | |
6362 | ||
6363 | goto unknown; | |
6364 | ||
6365 | case 'e': | |
6366 | switch (name[1]) | |
6367 | { | |
6368 | case 'a': | |
6369 | if (name[2] == 'c' && | |
6370 | name[3] == 'h') | |
6371 | { /* each */ | |
6372 | return -KEY_each; | |
6373 | } | |
6374 | ||
6375 | goto unknown; | |
6376 | ||
6377 | case 'l': | |
6378 | if (name[2] == 's' && | |
6379 | name[3] == 'e') | |
6380 | { /* else */ | |
6381 | return KEY_else; | |
6382 | } | |
6383 | ||
6384 | goto unknown; | |
6385 | ||
6386 | case 'v': | |
6387 | if (name[2] == 'a' && | |
6388 | name[3] == 'l') | |
6389 | { /* eval */ | |
6390 | return KEY_eval; | |
6391 | } | |
6392 | ||
6393 | goto unknown; | |
6394 | ||
6395 | case 'x': | |
6396 | switch (name[2]) | |
6397 | { | |
6398 | case 'e': | |
6399 | if (name[3] == 'c') | |
6400 | { /* exec */ | |
6401 | return -KEY_exec; | |
6402 | } | |
6403 | ||
6404 | goto unknown; | |
6405 | ||
6406 | case 'i': | |
6407 | if (name[3] == 't') | |
6408 | { /* exit */ | |
6409 | return -KEY_exit; | |
6410 | } | |
6411 | ||
6412 | goto unknown; | |
6413 | ||
6414 | default: | |
6415 | goto unknown; | |
6416 | } | |
6417 | ||
6418 | default: | |
6419 | goto unknown; | |
6420 | } | |
6421 | ||
6422 | case 'f': | |
6423 | if (name[1] == 'o' && | |
6424 | name[2] == 'r' && | |
6425 | name[3] == 'k') | |
6426 | { /* fork */ | |
6427 | return -KEY_fork; | |
6428 | } | |
6429 | ||
6430 | goto unknown; | |
6431 | ||
6432 | case 'g': | |
6433 | switch (name[1]) | |
6434 | { | |
6435 | case 'e': | |
6436 | if (name[2] == 't' && | |
6437 | name[3] == 'c') | |
6438 | { /* getc */ | |
6439 | return -KEY_getc; | |
6440 | } | |
6441 | ||
6442 | goto unknown; | |
6443 | ||
6444 | case 'l': | |
6445 | if (name[2] == 'o' && | |
6446 | name[3] == 'b') | |
6447 | { /* glob */ | |
6448 | return KEY_glob; | |
6449 | } | |
6450 | ||
6451 | goto unknown; | |
6452 | ||
6453 | case 'o': | |
6454 | if (name[2] == 't' && | |
6455 | name[3] == 'o') | |
6456 | { /* goto */ | |
6457 | return KEY_goto; | |
6458 | } | |
6459 | ||
6460 | goto unknown; | |
6461 | ||
6462 | case 'r': | |
6463 | if (name[2] == 'e' && | |
6464 | name[3] == 'p') | |
6465 | { /* grep */ | |
6466 | return KEY_grep; | |
6467 | } | |
6468 | ||
6469 | goto unknown; | |
6470 | ||
6471 | default: | |
6472 | goto unknown; | |
6473 | } | |
6474 | ||
6475 | case 'j': | |
6476 | if (name[1] == 'o' && | |
6477 | name[2] == 'i' && | |
6478 | name[3] == 'n') | |
6479 | { /* join */ | |
6480 | return -KEY_join; | |
6481 | } | |
6482 | ||
6483 | goto unknown; | |
6484 | ||
6485 | case 'k': | |
6486 | switch (name[1]) | |
6487 | { | |
6488 | case 'e': | |
6489 | if (name[2] == 'y' && | |
6490 | name[3] == 's') | |
6491 | { /* keys */ | |
6492 | return -KEY_keys; | |
6493 | } | |
6494 | ||
6495 | goto unknown; | |
6496 | ||
6497 | case 'i': | |
6498 | if (name[2] == 'l' && | |
6499 | name[3] == 'l') | |
6500 | { /* kill */ | |
6501 | return -KEY_kill; | |
6502 | } | |
6503 | ||
6504 | goto unknown; | |
6505 | ||
6506 | default: | |
6507 | goto unknown; | |
6508 | } | |
6509 | ||
6510 | case 'l': | |
6511 | switch (name[1]) | |
6512 | { | |
6513 | case 'a': | |
6514 | if (name[2] == 's' && | |
6515 | name[3] == 't') | |
6516 | { /* last */ | |
6517 | return KEY_last; | |
6518 | } | |
6519 | ||
6520 | goto unknown; | |
6521 | ||
6522 | case 'i': | |
6523 | if (name[2] == 'n' && | |
6524 | name[3] == 'k') | |
6525 | { /* link */ | |
6526 | return -KEY_link; | |
6527 | } | |
6528 | ||
6529 | goto unknown; | |
6530 | ||
6531 | case 'o': | |
6532 | if (name[2] == 'c' && | |
6533 | name[3] == 'k') | |
6534 | { /* lock */ | |
6535 | return -KEY_lock; | |
6536 | } | |
6537 | ||
6538 | goto unknown; | |
6539 | ||
6540 | default: | |
6541 | goto unknown; | |
6542 | } | |
6543 | ||
6544 | case 'n': | |
6545 | if (name[1] == 'e' && | |
6546 | name[2] == 'x' && | |
6547 | name[3] == 't') | |
6548 | { /* next */ | |
6549 | return KEY_next; | |
6550 | } | |
6551 | ||
6552 | goto unknown; | |
6553 | ||
6554 | case 'o': | |
6555 | if (name[1] == 'p' && | |
6556 | name[2] == 'e' && | |
6557 | name[3] == 'n') | |
6558 | { /* open */ | |
6559 | return -KEY_open; | |
6560 | } | |
6561 | ||
6562 | goto unknown; | |
6563 | ||
6564 | case 'p': | |
6565 | switch (name[1]) | |
6566 | { | |
6567 | case 'a': | |
6568 | if (name[2] == 'c' && | |
6569 | name[3] == 'k') | |
6570 | { /* pack */ | |
6571 | return -KEY_pack; | |
6572 | } | |
6573 | ||
6574 | goto unknown; | |
6575 | ||
6576 | case 'i': | |
6577 | if (name[2] == 'p' && | |
6578 | name[3] == 'e') | |
6579 | { /* pipe */ | |
6580 | return -KEY_pipe; | |
6581 | } | |
6582 | ||
6583 | goto unknown; | |
6584 | ||
6585 | case 'u': | |
6586 | if (name[2] == 's' && | |
6587 | name[3] == 'h') | |
6588 | { /* push */ | |
6589 | return -KEY_push; | |
6590 | } | |
6591 | ||
6592 | goto unknown; | |
6593 | ||
6594 | default: | |
6595 | goto unknown; | |
6596 | } | |
6597 | ||
6598 | case 'r': | |
6599 | switch (name[1]) | |
6600 | { | |
6601 | case 'a': | |
6602 | if (name[2] == 'n' && | |
6603 | name[3] == 'd') | |
6604 | { /* rand */ | |
6605 | return -KEY_rand; | |
6606 | } | |
6607 | ||
6608 | goto unknown; | |
6609 | ||
6610 | case 'e': | |
6611 | switch (name[2]) | |
6612 | { | |
6613 | case 'a': | |
6614 | if (name[3] == 'd') | |
6615 | { /* read */ | |
6616 | return -KEY_read; | |
6617 | } | |
6618 | ||
6619 | goto unknown; | |
6620 | ||
6621 | case 'c': | |
6622 | if (name[3] == 'v') | |
6623 | { /* recv */ | |
6624 | return -KEY_recv; | |
6625 | } | |
6626 | ||
6627 | goto unknown; | |
6628 | ||
6629 | case 'd': | |
6630 | if (name[3] == 'o') | |
6631 | { /* redo */ | |
6632 | return KEY_redo; | |
6633 | } | |
6634 | ||
6635 | goto unknown; | |
6636 | ||
6637 | default: | |
6638 | goto unknown; | |
6639 | } | |
6640 | ||
6641 | default: | |
6642 | goto unknown; | |
6643 | } | |
6644 | ||
6645 | case 's': | |
6646 | switch (name[1]) | |
6647 | { | |
6648 | case 'e': | |
6649 | switch (name[2]) | |
6650 | { | |
6651 | case 'e': | |
6652 | if (name[3] == 'k') | |
6653 | { /* seek */ | |
6654 | return -KEY_seek; | |
6655 | } | |
6656 | ||
6657 | goto unknown; | |
6658 | ||
6659 | case 'n': | |
6660 | if (name[3] == 'd') | |
6661 | { /* send */ | |
6662 | return -KEY_send; | |
6663 | } | |
6664 | ||
6665 | goto unknown; | |
6666 | ||
6667 | default: | |
6668 | goto unknown; | |
6669 | } | |
6670 | ||
6671 | case 'o': | |
6672 | if (name[2] == 'r' && | |
6673 | name[3] == 't') | |
6674 | { /* sort */ | |
6675 | return KEY_sort; | |
6676 | } | |
6677 | ||
6678 | goto unknown; | |
6679 | ||
6680 | case 'q': | |
6681 | if (name[2] == 'r' && | |
6682 | name[3] == 't') | |
6683 | { /* sqrt */ | |
6684 | return -KEY_sqrt; | |
6685 | } | |
6686 | ||
6687 | goto unknown; | |
6688 | ||
6689 | case 't': | |
6690 | if (name[2] == 'a' && | |
6691 | name[3] == 't') | |
6692 | { /* stat */ | |
6693 | return -KEY_stat; | |
6694 | } | |
6695 | ||
6696 | goto unknown; | |
6697 | ||
6698 | default: | |
6699 | goto unknown; | |
6700 | } | |
6701 | ||
6702 | case 't': | |
6703 | switch (name[1]) | |
6704 | { | |
6705 | case 'e': | |
6706 | if (name[2] == 'l' && | |
6707 | name[3] == 'l') | |
6708 | { /* tell */ | |
6709 | return -KEY_tell; | |
6710 | } | |
6711 | ||
6712 | goto unknown; | |
6713 | ||
6714 | case 'i': | |
6715 | switch (name[2]) | |
6716 | { | |
6717 | case 'e': | |
6718 | if (name[3] == 'd') | |
6719 | { /* tied */ | |
6720 | return KEY_tied; | |
6721 | } | |
6722 | ||
6723 | goto unknown; | |
6724 | ||
6725 | case 'm': | |
6726 | if (name[3] == 'e') | |
6727 | { /* time */ | |
6728 | return -KEY_time; | |
6729 | } | |
6730 | ||
6731 | goto unknown; | |
6732 | ||
6733 | default: | |
6734 | goto unknown; | |
6735 | } | |
6736 | ||
6737 | default: | |
6738 | goto unknown; | |
6739 | } | |
6740 | ||
6741 | case 'w': | |
0d863452 | 6742 | switch (name[1]) |
4c3bbe0f | 6743 | { |
0d863452 | 6744 | case 'a': |
4c3bbe0f MHM |
6745 | switch (name[2]) |
6746 | { | |
6747 | case 'i': | |
6748 | if (name[3] == 't') | |
6749 | { /* wait */ | |
6750 | return -KEY_wait; | |
6751 | } | |
6752 | ||
6753 | goto unknown; | |
6754 | ||
6755 | case 'r': | |
6756 | if (name[3] == 'n') | |
6757 | { /* warn */ | |
6758 | return -KEY_warn; | |
6759 | } | |
6760 | ||
6761 | goto unknown; | |
6762 | ||
6763 | default: | |
6764 | goto unknown; | |
6765 | } | |
0d863452 RH |
6766 | |
6767 | case 'h': | |
6768 | if (name[2] == 'e' && | |
6769 | name[3] == 'n') | |
6770 | { /* when */ | |
ef89dcc3 | 6771 | return (FEATURE_IS_ENABLED("switch") ? KEY_when : 0); |
4c3bbe0f MHM |
6772 | } |
6773 | ||
6774 | goto unknown; | |
6775 | ||
6776 | default: | |
6777 | goto unknown; | |
e2e1dd5a | 6778 | } |
4c3bbe0f | 6779 | |
0d863452 RH |
6780 | default: |
6781 | goto unknown; | |
6782 | } | |
6783 | ||
6784 | case 5: /* 38 tokens of length 5 */ | |
4c3bbe0f | 6785 | switch (name[0]) |
e2e1dd5a | 6786 | { |
4c3bbe0f MHM |
6787 | case 'B': |
6788 | if (name[1] == 'E' && | |
6789 | name[2] == 'G' && | |
6790 | name[3] == 'I' && | |
6791 | name[4] == 'N') | |
6792 | { /* BEGIN */ | |
6793 | return KEY_BEGIN; | |
6794 | } | |
6795 | ||
6796 | goto unknown; | |
6797 | ||
6798 | case 'C': | |
6799 | if (name[1] == 'H' && | |
6800 | name[2] == 'E' && | |
6801 | name[3] == 'C' && | |
6802 | name[4] == 'K') | |
6803 | { /* CHECK */ | |
6804 | return KEY_CHECK; | |
6805 | } | |
6806 | ||
6807 | goto unknown; | |
6808 | ||
6809 | case 'a': | |
6810 | switch (name[1]) | |
6811 | { | |
6812 | case 'l': | |
6813 | if (name[2] == 'a' && | |
6814 | name[3] == 'r' && | |
6815 | name[4] == 'm') | |
6816 | { /* alarm */ | |
6817 | return -KEY_alarm; | |
6818 | } | |
6819 | ||
6820 | goto unknown; | |
6821 | ||
6822 | case 't': | |
6823 | if (name[2] == 'a' && | |
6824 | name[3] == 'n' && | |
6825 | name[4] == '2') | |
6826 | { /* atan2 */ | |
6827 | return -KEY_atan2; | |
6828 | } | |
6829 | ||
6830 | goto unknown; | |
6831 | ||
6832 | default: | |
6833 | goto unknown; | |
6834 | } | |
6835 | ||
6836 | case 'b': | |
0d863452 RH |
6837 | switch (name[1]) |
6838 | { | |
6839 | case 'l': | |
6840 | if (name[2] == 'e' && | |
4c3bbe0f MHM |
6841 | name[3] == 's' && |
6842 | name[4] == 's') | |
6843 | { /* bless */ | |
6844 | return -KEY_bless; | |
6845 | } | |
6846 | ||
6847 | goto unknown; | |
6848 | ||
0d863452 RH |
6849 | case 'r': |
6850 | if (name[2] == 'e' && | |
6851 | name[3] == 'a' && | |
6852 | name[4] == 'k') | |
6853 | { /* break */ | |
ef89dcc3 | 6854 | return (FEATURE_IS_ENABLED("switch") ? -KEY_break : 0); |
0d863452 RH |
6855 | } |
6856 | ||
6857 | goto unknown; | |
6858 | ||
6859 | default: | |
6860 | goto unknown; | |
6861 | } | |
6862 | ||
4c3bbe0f MHM |
6863 | case 'c': |
6864 | switch (name[1]) | |
6865 | { | |
6866 | case 'h': | |
6867 | switch (name[2]) | |
6868 | { | |
6869 | case 'd': | |
6870 | if (name[3] == 'i' && | |
6871 | name[4] == 'r') | |
6872 | { /* chdir */ | |
6873 | return -KEY_chdir; | |
6874 | } | |
6875 | ||
6876 | goto unknown; | |
6877 | ||
6878 | case 'm': | |
6879 | if (name[3] == 'o' && | |
6880 | name[4] == 'd') | |
6881 | { /* chmod */ | |
6882 | return -KEY_chmod; | |
6883 | } | |
6884 | ||
6885 | goto unknown; | |
6886 | ||
6887 | case 'o': | |
6888 | switch (name[3]) | |
6889 | { | |
6890 | case 'm': | |
6891 | if (name[4] == 'p') | |
6892 | { /* chomp */ | |
6893 | return -KEY_chomp; | |
6894 | } | |
6895 | ||
6896 | goto unknown; | |
6897 | ||
6898 | case 'w': | |
6899 | if (name[4] == 'n') | |
6900 | { /* chown */ | |
6901 | return -KEY_chown; | |
6902 | } | |
6903 | ||
6904 | goto unknown; | |
6905 | ||
6906 | default: | |
6907 | goto unknown; | |
6908 | } | |
6909 | ||
6910 | default: | |
6911 | goto unknown; | |
6912 | } | |
6913 | ||
6914 | case 'l': | |
6915 | if (name[2] == 'o' && | |
6916 | name[3] == 's' && | |
6917 | name[4] == 'e') | |
6918 | { /* close */ | |
6919 | return -KEY_close; | |
6920 | } | |
6921 | ||
6922 | goto unknown; | |
6923 | ||
6924 | case 'r': | |
6925 | if (name[2] == 'y' && | |
6926 | name[3] == 'p' && | |
6927 | name[4] == 't') | |
6928 | { /* crypt */ | |
6929 | return -KEY_crypt; | |
6930 | } | |
6931 | ||
6932 | goto unknown; | |
6933 | ||
6934 | default: | |
6935 | goto unknown; | |
6936 | } | |
6937 | ||
6938 | case 'e': | |
6939 | if (name[1] == 'l' && | |
6940 | name[2] == 's' && | |
6941 | name[3] == 'i' && | |
6942 | name[4] == 'f') | |
6943 | { /* elsif */ | |
6944 | return KEY_elsif; | |
6945 | } | |
6946 | ||
6947 | goto unknown; | |
6948 | ||
6949 | case 'f': | |
6950 | switch (name[1]) | |
6951 | { | |
6952 | case 'c': | |
6953 | if (name[2] == 'n' && | |
6954 | name[3] == 't' && | |
6955 | name[4] == 'l') | |
6956 | { /* fcntl */ | |
6957 | return -KEY_fcntl; | |
6958 | } | |
6959 | ||
6960 | goto unknown; | |
6961 | ||
6962 | case 'l': | |
6963 | if (name[2] == 'o' && | |
6964 | name[3] == 'c' && | |
6965 | name[4] == 'k') | |
6966 | { /* flock */ | |
6967 | return -KEY_flock; | |
6968 | } | |
6969 | ||
6970 | goto unknown; | |
6971 | ||
6972 | default: | |
6973 | goto unknown; | |
6974 | } | |
6975 | ||
0d863452 RH |
6976 | case 'g': |
6977 | if (name[1] == 'i' && | |
6978 | name[2] == 'v' && | |
6979 | name[3] == 'e' && | |
6980 | name[4] == 'n') | |
6981 | { /* given */ | |
ef89dcc3 | 6982 | return (FEATURE_IS_ENABLED("switch") ? KEY_given : 0); |
0d863452 RH |
6983 | } |
6984 | ||
6985 | goto unknown; | |
6986 | ||
4c3bbe0f MHM |
6987 | case 'i': |
6988 | switch (name[1]) | |
6989 | { | |
6990 | case 'n': | |
6991 | if (name[2] == 'd' && | |
6992 | name[3] == 'e' && | |
6993 | name[4] == 'x') | |
6994 | { /* index */ | |
6995 | return -KEY_index; | |
6996 | } | |
6997 | ||
6998 | goto unknown; | |
6999 | ||
7000 | case 'o': | |
7001 | if (name[2] == 'c' && | |
7002 | name[3] == 't' && | |
7003 | name[4] == 'l') | |
7004 | { /* ioctl */ | |
7005 | return -KEY_ioctl; | |
7006 | } | |
7007 | ||
7008 | goto unknown; | |
7009 | ||
7010 | default: | |
7011 | goto unknown; | |
7012 | } | |
7013 | ||
7014 | case 'l': | |
7015 | switch (name[1]) | |
7016 | { | |
7017 | case 'o': | |
7018 | if (name[2] == 'c' && | |
7019 | name[3] == 'a' && | |
7020 | name[4] == 'l') | |
7021 | { /* local */ | |
7022 | return KEY_local; | |
7023 | } | |
7024 | ||
7025 | goto unknown; | |
7026 | ||
7027 | case 's': | |
7028 | if (name[2] == 't' && | |
7029 | name[3] == 'a' && | |
7030 | name[4] == 't') | |
7031 | { /* lstat */ | |
7032 | return -KEY_lstat; | |
7033 | } | |
7034 | ||
7035 | goto unknown; | |
7036 | ||
7037 | default: | |
7038 | goto unknown; | |
7039 | } | |
7040 | ||
7041 | case 'm': | |
7042 | if (name[1] == 'k' && | |
7043 | name[2] == 'd' && | |
7044 | name[3] == 'i' && | |
7045 | name[4] == 'r') | |
7046 | { /* mkdir */ | |
7047 | return -KEY_mkdir; | |
7048 | } | |
7049 | ||
7050 | goto unknown; | |
7051 | ||
7052 | case 'p': | |
7053 | if (name[1] == 'r' && | |
7054 | name[2] == 'i' && | |
7055 | name[3] == 'n' && | |
7056 | name[4] == 't') | |
7057 | { /* print */ | |
7058 | return KEY_print; | |
7059 | } | |
7060 | ||
7061 | goto unknown; | |
7062 | ||
7063 | case 'r': | |
7064 | switch (name[1]) | |
7065 | { | |
7066 | case 'e': | |
7067 | if (name[2] == 's' && | |
7068 | name[3] == 'e' && | |
7069 | name[4] == 't') | |
7070 | { /* reset */ | |
7071 | return -KEY_reset; | |
7072 | } | |
7073 | ||
7074 | goto unknown; | |
7075 | ||
7076 | case 'm': | |
7077 | if (name[2] == 'd' && | |
7078 | name[3] == 'i' && | |
7079 | name[4] == 'r') | |
7080 | { /* rmdir */ | |
7081 | return -KEY_rmdir; | |
7082 | } | |
7083 | ||
7084 | goto unknown; | |
7085 | ||
7086 | default: | |
7087 | goto unknown; | |
7088 | } | |
7089 | ||
7090 | case 's': | |
7091 | switch (name[1]) | |
7092 | { | |
7093 | case 'e': | |
7094 | if (name[2] == 'm' && | |
7095 | name[3] == 'o' && | |
7096 | name[4] == 'p') | |
7097 | { /* semop */ | |
7098 | return -KEY_semop; | |
7099 | } | |
7100 | ||
7101 | goto unknown; | |
7102 | ||
7103 | case 'h': | |
7104 | if (name[2] == 'i' && | |
7105 | name[3] == 'f' && | |
7106 | name[4] == 't') | |
7107 | { /* shift */ | |
7108 | return -KEY_shift; | |
7109 | } | |
7110 | ||
7111 | goto unknown; | |
7112 | ||
7113 | case 'l': | |
7114 | if (name[2] == 'e' && | |
7115 | name[3] == 'e' && | |
7116 | name[4] == 'p') | |
7117 | { /* sleep */ | |
7118 | return -KEY_sleep; | |
7119 | } | |
7120 | ||
7121 | goto unknown; | |
7122 | ||
7123 | case 'p': | |
7124 | if (name[2] == 'l' && | |
7125 | name[3] == 'i' && | |
7126 | name[4] == 't') | |
7127 | { /* split */ | |
7128 | return KEY_split; | |
7129 | } | |
7130 | ||
7131 | goto unknown; | |
7132 | ||
7133 | case 'r': | |
7134 | if (name[2] == 'a' && | |
7135 | name[3] == 'n' && | |
7136 | name[4] == 'd') | |
7137 | { /* srand */ | |
7138 | return -KEY_srand; | |
7139 | } | |
7140 | ||
7141 | goto unknown; | |
7142 | ||
7143 | case 't': | |
7144 | if (name[2] == 'u' && | |
7145 | name[3] == 'd' && | |
7146 | name[4] == 'y') | |
7147 | { /* study */ | |
7148 | return KEY_study; | |
7149 | } | |
7150 | ||
7151 | goto unknown; | |
7152 | ||
7153 | default: | |
7154 | goto unknown; | |
7155 | } | |
7156 | ||
7157 | case 't': | |
7158 | if (name[1] == 'i' && | |
7159 | name[2] == 'm' && | |
7160 | name[3] == 'e' && | |
7161 | name[4] == 's') | |
7162 | { /* times */ | |
7163 | return -KEY_times; | |
7164 | } | |
7165 | ||
7166 | goto unknown; | |
7167 | ||
7168 | case 'u': | |
7169 | switch (name[1]) | |
7170 | { | |
7171 | case 'm': | |
7172 | if (name[2] == 'a' && | |
7173 | name[3] == 's' && | |
7174 | name[4] == 'k') | |
7175 | { /* umask */ | |
7176 | return -KEY_umask; | |
7177 | } | |
7178 | ||
7179 | goto unknown; | |
7180 | ||
7181 | case 'n': | |
7182 | switch (name[2]) | |
7183 | { | |
7184 | case 'd': | |
7185 | if (name[3] == 'e' && | |
7186 | name[4] == 'f') | |
7187 | { /* undef */ | |
7188 | return KEY_undef; | |
7189 | } | |
7190 | ||
7191 | goto unknown; | |
7192 | ||
7193 | case 't': | |
7194 | if (name[3] == 'i') | |
7195 | { | |
7196 | switch (name[4]) | |
7197 | { | |
7198 | case 'e': | |
7199 | { /* untie */ | |
7200 | return KEY_untie; | |
7201 | } | |
7202 | ||
4c3bbe0f MHM |
7203 | case 'l': |
7204 | { /* until */ | |
7205 | return KEY_until; | |
7206 | } | |
7207 | ||
4c3bbe0f MHM |
7208 | default: |
7209 | goto unknown; | |
7210 | } | |
7211 | } | |
7212 | ||
7213 | goto unknown; | |
7214 | ||
7215 | default: | |
7216 | goto unknown; | |
7217 | } | |
7218 | ||
7219 | case 't': | |
7220 | if (name[2] == 'i' && | |
7221 | name[3] == 'm' && | |
7222 | name[4] == 'e') | |
7223 | { /* utime */ | |
7224 | return -KEY_utime; | |
7225 | } | |
7226 | ||
7227 | goto unknown; | |
7228 | ||
7229 | default: | |
7230 | goto unknown; | |
7231 | } | |
7232 | ||
7233 | case 'w': | |
7234 | switch (name[1]) | |
7235 | { | |
7236 | case 'h': | |
7237 | if (name[2] == 'i' && | |
7238 | name[3] == 'l' && | |
7239 | name[4] == 'e') | |
7240 | { /* while */ | |
7241 | return KEY_while; | |
7242 | } | |
7243 | ||
7244 | goto unknown; | |
7245 | ||
7246 | case 'r': | |
7247 | if (name[2] == 'i' && | |
7248 | name[3] == 't' && | |
7249 | name[4] == 'e') | |
7250 | { /* write */ | |
7251 | return -KEY_write; | |
7252 | } | |
7253 | ||
7254 | goto unknown; | |
7255 | ||
7256 | default: | |
7257 | goto unknown; | |
7258 | } | |
7259 | ||
7260 | default: | |
7261 | goto unknown; | |
e2e1dd5a | 7262 | } |
4c3bbe0f MHM |
7263 | |
7264 | case 6: /* 33 tokens of length 6 */ | |
7265 | switch (name[0]) | |
7266 | { | |
7267 | case 'a': | |
7268 | if (name[1] == 'c' && | |
7269 | name[2] == 'c' && | |
7270 | name[3] == 'e' && | |
7271 | name[4] == 'p' && | |
7272 | name[5] == 't') | |
7273 | { /* accept */ | |
7274 | return -KEY_accept; | |
7275 | } | |
7276 | ||
7277 | goto unknown; | |
7278 | ||
7279 | case 'c': | |
7280 | switch (name[1]) | |
7281 | { | |
7282 | case 'a': | |
7283 | if (name[2] == 'l' && | |
7284 | name[3] == 'l' && | |
7285 | name[4] == 'e' && | |
7286 | name[5] == 'r') | |
7287 | { /* caller */ | |
7288 | return -KEY_caller; | |
7289 | } | |
7290 | ||
7291 | goto unknown; | |
7292 | ||
7293 | case 'h': | |
7294 | if (name[2] == 'r' && | |
7295 | name[3] == 'o' && | |
7296 | name[4] == 'o' && | |
7297 | name[5] == 't') | |
7298 | { /* chroot */ | |
7299 | return -KEY_chroot; | |
7300 | } | |
7301 | ||
7302 | goto unknown; | |
7303 | ||
7304 | default: | |
7305 | goto unknown; | |
7306 | } | |
7307 | ||
7308 | case 'd': | |
7309 | if (name[1] == 'e' && | |
7310 | name[2] == 'l' && | |
7311 | name[3] == 'e' && | |
7312 | name[4] == 't' && | |
7313 | name[5] == 'e') | |
7314 | { /* delete */ | |
7315 | return KEY_delete; | |
7316 | } | |
7317 | ||
7318 | goto unknown; | |
7319 | ||
7320 | case 'e': | |
7321 | switch (name[1]) | |
7322 | { | |
7323 | case 'l': | |
7324 | if (name[2] == 's' && | |
7325 | name[3] == 'e' && | |
7326 | name[4] == 'i' && | |
7327 | name[5] == 'f') | |
7328 | { /* elseif */ | |
7329 | if(ckWARN_d(WARN_SYNTAX)) | |
7330 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); | |
7331 | } | |
7332 | ||
7333 | goto unknown; | |
7334 | ||
7335 | case 'x': | |
7336 | if (name[2] == 'i' && | |
7337 | name[3] == 's' && | |
7338 | name[4] == 't' && | |
7339 | name[5] == 's') | |
7340 | { /* exists */ | |
7341 | return KEY_exists; | |
7342 | } | |
7343 | ||
7344 | goto unknown; | |
7345 | ||
7346 | default: | |
7347 | goto unknown; | |
7348 | } | |
7349 | ||
7350 | case 'f': | |
7351 | switch (name[1]) | |
7352 | { | |
7353 | case 'i': | |
7354 | if (name[2] == 'l' && | |
7355 | name[3] == 'e' && | |
7356 | name[4] == 'n' && | |
7357 | name[5] == 'o') | |
7358 | { /* fileno */ | |
7359 | return -KEY_fileno; | |
7360 | } | |
7361 | ||
7362 | goto unknown; | |
7363 | ||
7364 | case 'o': | |
7365 | if (name[2] == 'r' && | |
7366 | name[3] == 'm' && | |
7367 | name[4] == 'a' && | |
7368 | name[5] == 't') | |
7369 | { /* format */ | |
7370 | return KEY_format; | |
7371 | } | |
7372 | ||
7373 | goto unknown; | |
7374 | ||
7375 | default: | |
7376 | goto unknown; | |
7377 | } | |
7378 | ||
7379 | case 'g': | |
7380 | if (name[1] == 'm' && | |
7381 | name[2] == 't' && | |
7382 | name[3] == 'i' && | |
7383 | name[4] == 'm' && | |
7384 | name[5] == 'e') | |
7385 | { /* gmtime */ | |
7386 | return -KEY_gmtime; | |
7387 | } | |
7388 | ||
7389 | goto unknown; | |
7390 | ||
7391 | case 'l': | |
7392 | switch (name[1]) | |
7393 | { | |
7394 | case 'e': | |
7395 | if (name[2] == 'n' && | |
7396 | name[3] == 'g' && | |
7397 | name[4] == 't' && | |
7398 | name[5] == 'h') | |
7399 | { /* length */ | |
7400 | return -KEY_length; | |
7401 | } | |
7402 | ||
7403 | goto unknown; | |
7404 | ||
7405 | case 'i': | |
7406 | if (name[2] == 's' && | |
7407 | name[3] == 't' && | |
7408 | name[4] == 'e' && | |
7409 | name[5] == 'n') | |
7410 | { /* listen */ | |
7411 | return -KEY_listen; | |
7412 | } | |
7413 | ||
7414 | goto unknown; | |
7415 | ||
7416 | default: | |
7417 | goto unknown; | |
7418 | } | |
7419 | ||
7420 | case 'm': | |
7421 | if (name[1] == 's' && | |
7422 | name[2] == 'g') | |
7423 | { | |
7424 | switch (name[3]) | |
7425 | { | |
7426 | case 'c': | |
7427 | if (name[4] == 't' && | |
7428 | name[5] == 'l') | |
7429 | { /* msgctl */ | |
7430 | return -KEY_msgctl; | |
7431 | } | |
7432 | ||
7433 | goto unknown; | |
7434 | ||
7435 | case 'g': | |
7436 | if (name[4] == 'e' && | |
7437 | name[5] == 't') | |
7438 | { /* msgget */ | |
7439 | return -KEY_msgget; | |
7440 | } | |
7441 | ||
7442 | goto unknown; | |
7443 | ||
7444 | case 'r': | |
7445 | if (name[4] == 'c' && | |
7446 | name[5] == 'v') | |
7447 | { /* msgrcv */ | |
7448 | return -KEY_msgrcv; | |
7449 | } | |
7450 | ||
7451 | goto unknown; | |
7452 | ||
7453 | case 's': | |
7454 | if (name[4] == 'n' && | |
7455 | name[5] == 'd') | |
7456 | { /* msgsnd */ | |
7457 | return -KEY_msgsnd; | |
7458 | } | |
7459 | ||
7460 | goto unknown; | |
7461 | ||
7462 | default: | |
7463 | goto unknown; | |
7464 | } | |
7465 | } | |
7466 | ||
7467 | goto unknown; | |
7468 | ||
7469 | case 'p': | |
7470 | if (name[1] == 'r' && | |
7471 | name[2] == 'i' && | |
7472 | name[3] == 'n' && | |
7473 | name[4] == 't' && | |
7474 | name[5] == 'f') | |
7475 | { /* printf */ | |
7476 | return KEY_printf; | |
7477 | } | |
7478 | ||
7479 | goto unknown; | |
7480 | ||
7481 | case 'r': | |
7482 | switch (name[1]) | |
7483 | { | |
7484 | case 'e': | |
7485 | switch (name[2]) | |
7486 | { | |
7487 | case 'n': | |
7488 | if (name[3] == 'a' && | |
7489 | name[4] == 'm' && | |
7490 | name[5] == 'e') | |
7491 | { /* rename */ | |
7492 | return -KEY_rename; | |
7493 | } | |
7494 | ||
7495 | goto unknown; | |
7496 | ||
7497 | case 't': | |
7498 | if (name[3] == 'u' && | |
7499 | name[4] == 'r' && | |
7500 | name[5] == 'n') | |
7501 | { /* return */ | |
7502 | return KEY_return; | |
7503 | } | |
7504 | ||
7505 | goto unknown; | |
7506 | ||
7507 | default: | |
7508 | goto unknown; | |
7509 | } | |
7510 | ||
7511 | case 'i': | |
7512 | if (name[2] == 'n' && | |
7513 | name[3] == 'd' && | |
7514 | name[4] == 'e' && | |
7515 | name[5] == 'x') | |
7516 | { /* rindex */ | |
7517 | return -KEY_rindex; | |
7518 | } | |
7519 | ||
7520 | goto unknown; | |
7521 | ||
7522 | default: | |
7523 | goto unknown; | |
7524 | } | |
7525 | ||
7526 | case 's': | |
7527 | switch (name[1]) | |
7528 | { | |
7529 | case 'c': | |
7530 | if (name[2] == 'a' && | |
7531 | name[3] == 'l' && | |
7532 | name[4] == 'a' && | |
7533 | name[5] == 'r') | |
7534 | { /* scalar */ | |
7535 | return KEY_scalar; | |
7536 | } | |
7537 | ||
7538 | goto unknown; | |
7539 | ||
7540 | case 'e': | |
7541 | switch (name[2]) | |
7542 | { | |
7543 | case 'l': | |
7544 | if (name[3] == 'e' && | |
7545 | name[4] == 'c' && | |
7546 | name[5] == 't') | |
7547 | { /* select */ | |
7548 | return -KEY_select; | |
7549 | } | |
7550 | ||
7551 | goto unknown; | |
7552 | ||
7553 | case 'm': | |
7554 | switch (name[3]) | |
7555 | { | |
7556 | case 'c': | |
7557 | if (name[4] == 't' && | |
7558 | name[5] == 'l') | |
7559 | { /* semctl */ | |
7560 | return -KEY_semctl; | |
7561 | } | |
7562 | ||
7563 | goto unknown; | |
7564 | ||
7565 | case 'g': | |
7566 | if (name[4] == 'e' && | |
7567 | name[5] == 't') | |
7568 | { /* semget */ | |
7569 | return -KEY_semget; | |
7570 | } | |
7571 | ||
7572 | goto unknown; | |
7573 | ||
7574 | default: | |
7575 | goto unknown; | |
7576 | } | |
7577 | ||
7578 | default: | |
7579 | goto unknown; | |
7580 | } | |
7581 | ||
7582 | case 'h': | |
7583 | if (name[2] == 'm') | |
7584 | { | |
7585 | switch (name[3]) | |
7586 | { | |
7587 | case 'c': | |
7588 | if (name[4] == 't' && | |
7589 | name[5] == 'l') | |
7590 | { /* shmctl */ | |
7591 | return -KEY_shmctl; | |
7592 | } | |
7593 | ||
7594 | goto unknown; | |
7595 | ||
7596 | case 'g': | |
7597 | if (name[4] == 'e' && | |
7598 | name[5] == 't') | |
7599 | { /* shmget */ | |
7600 | return -KEY_shmget; | |
7601 | } | |
7602 | ||
7603 | goto unknown; | |
7604 | ||
7605 | default: | |
7606 | goto unknown; | |
7607 | } | |
7608 | } | |
7609 | ||
7610 | goto unknown; | |
7611 | ||
7612 | case 'o': | |
7613 | if (name[2] == 'c' && | |
7614 | name[3] == 'k' && | |
7615 | name[4] == 'e' && | |
7616 | name[5] == 't') | |
7617 | { /* socket */ | |
7618 | return -KEY_socket; | |
7619 | } | |
7620 | ||
7621 | goto unknown; | |
7622 | ||
7623 | case 'p': | |
7624 | if (name[2] == 'l' && | |
7625 | name[3] == 'i' && | |
7626 | name[4] == 'c' && | |
7627 | name[5] == 'e') | |
7628 | { /* splice */ | |
7629 | return -KEY_splice; | |
7630 | } | |
7631 | ||
7632 | goto unknown; | |
7633 | ||
7634 | case 'u': | |
7635 | if (name[2] == 'b' && | |
7636 | name[3] == 's' && | |
7637 | name[4] == 't' && | |
7638 | name[5] == 'r') | |
7639 | { /* substr */ | |
7640 | return -KEY_substr; | |
7641 | } | |
7642 | ||
7643 | goto unknown; | |
7644 | ||
7645 | case 'y': | |
7646 | if (name[2] == 's' && | |
7647 | name[3] == 't' && | |
7648 | name[4] == 'e' && | |
7649 | name[5] == 'm') | |
7650 | { /* system */ | |
7651 | return -KEY_system; | |
7652 | } | |
7653 | ||
7654 | goto unknown; | |
7655 | ||
7656 | default: | |
7657 | goto unknown; | |
7658 | } | |
7659 | ||
7660 | case 'u': | |
7661 | if (name[1] == 'n') | |
7662 | { | |
7663 | switch (name[2]) | |
7664 | { | |
7665 | case 'l': | |
7666 | switch (name[3]) | |
7667 | { | |
7668 | case 'e': | |
7669 | if (name[4] == 's' && | |
7670 | name[5] == 's') | |
7671 | { /* unless */ | |
7672 | return KEY_unless; | |
7673 | } | |
7674 | ||
7675 | goto unknown; | |
7676 | ||
7677 | case 'i': | |
7678 | if (name[4] == 'n' && | |
7679 | name[5] == 'k') | |
7680 | { /* unlink */ | |
7681 | return -KEY_unlink; | |
7682 | } | |
7683 | ||
7684 | goto unknown; | |
7685 | ||
7686 | default: | |
7687 | goto unknown; | |
7688 | } | |
7689 | ||
7690 | case 'p': | |
7691 | if (name[3] == 'a' && | |
7692 | name[4] == 'c' && | |
7693 | name[5] == 'k') | |
7694 | { /* unpack */ | |
7695 | return -KEY_unpack; | |
7696 | } | |
7697 | ||
7698 | goto unknown; | |
7699 | ||
7700 | default: | |
7701 | goto unknown; | |
7702 | } | |
7703 | } | |
7704 | ||
7705 | goto unknown; | |
7706 | ||
7707 | case 'v': | |
7708 | if (name[1] == 'a' && | |
7709 | name[2] == 'l' && | |
7710 | name[3] == 'u' && | |
7711 | name[4] == 'e' && | |
7712 | name[5] == 's') | |
7713 | { /* values */ | |
7714 | return -KEY_values; | |
7715 | } | |
7716 | ||
7717 | goto unknown; | |
7718 | ||
7719 | default: | |
7720 | goto unknown; | |
e2e1dd5a | 7721 | } |
4c3bbe0f | 7722 | |
0d863452 | 7723 | case 7: /* 29 tokens of length 7 */ |
4c3bbe0f MHM |
7724 | switch (name[0]) |
7725 | { | |
7726 | case 'D': | |
7727 | if (name[1] == 'E' && | |
7728 | name[2] == 'S' && | |
7729 | name[3] == 'T' && | |
7730 | name[4] == 'R' && | |
7731 | name[5] == 'O' && | |
7732 | name[6] == 'Y') | |
7733 | { /* DESTROY */ | |
7734 | return KEY_DESTROY; | |
7735 | } | |
7736 | ||
7737 | goto unknown; | |
7738 | ||
7739 | case '_': | |
7740 | if (name[1] == '_' && | |
7741 | name[2] == 'E' && | |
7742 | name[3] == 'N' && | |
7743 | name[4] == 'D' && | |
7744 | name[5] == '_' && | |
7745 | name[6] == '_') | |
7746 | { /* __END__ */ | |
7747 | return KEY___END__; | |
7748 | } | |
7749 | ||
7750 | goto unknown; | |
7751 | ||
7752 | case 'b': | |
7753 | if (name[1] == 'i' && | |
7754 | name[2] == 'n' && | |
7755 | name[3] == 'm' && | |
7756 | name[4] == 'o' && | |
7757 | name[5] == 'd' && | |
7758 | name[6] == 'e') | |
7759 | { /* binmode */ | |
7760 | return -KEY_binmode; | |
7761 | } | |
7762 | ||
7763 | goto unknown; | |
7764 | ||
7765 | case 'c': | |
7766 | if (name[1] == 'o' && | |
7767 | name[2] == 'n' && | |
7768 | name[3] == 'n' && | |
7769 | name[4] == 'e' && | |
7770 | name[5] == 'c' && | |
7771 | name[6] == 't') | |
7772 | { /* connect */ | |
7773 | return -KEY_connect; | |
7774 | } | |
7775 | ||
7776 | goto unknown; | |
7777 | ||
7778 | case 'd': | |
7779 | switch (name[1]) | |
7780 | { | |
7781 | case 'b': | |
7782 | if (name[2] == 'm' && | |
7783 | name[3] == 'o' && | |
7784 | name[4] == 'p' && | |
7785 | name[5] == 'e' && | |
7786 | name[6] == 'n') | |
7787 | { /* dbmopen */ | |
7788 | return -KEY_dbmopen; | |
7789 | } | |
7790 | ||
7791 | goto unknown; | |
7792 | ||
7793 | case 'e': | |
0d863452 RH |
7794 | if (name[2] == 'f') |
7795 | { | |
7796 | switch (name[3]) | |
7797 | { | |
7798 | case 'a': | |
7799 | if (name[4] == 'u' && | |
7800 | name[5] == 'l' && | |
7801 | name[6] == 't') | |
7802 | { /* default */ | |
ef89dcc3 | 7803 | return (FEATURE_IS_ENABLED("switch") ? KEY_default : 0); |
0d863452 RH |
7804 | } |
7805 | ||
7806 | goto unknown; | |
7807 | ||
7808 | case 'i': | |
7809 | if (name[4] == 'n' && | |
4c3bbe0f MHM |
7810 | name[5] == 'e' && |
7811 | name[6] == 'd') | |
7812 | { /* defined */ | |
7813 | return KEY_defined; | |
7814 | } | |
7815 | ||
7816 | goto unknown; | |
7817 | ||
7818 | default: | |
7819 | goto unknown; | |
7820 | } | |
0d863452 RH |
7821 | } |
7822 | ||
7823 | goto unknown; | |
7824 | ||
7825 | default: | |
7826 | goto unknown; | |
7827 | } | |
4c3bbe0f MHM |
7828 | |
7829 | case 'f': | |
7830 | if (name[1] == 'o' && | |
7831 | name[2] == 'r' && | |
7832 | name[3] == 'e' && | |
7833 | name[4] == 'a' && | |
7834 | name[5] == 'c' && | |
7835 | name[6] == 'h') | |
7836 | { /* foreach */ | |
7837 | return KEY_foreach; | |
7838 | } | |
7839 | ||
7840 | goto unknown; | |
7841 | ||
7842 | case 'g': | |
7843 | if (name[1] == 'e' && | |
7844 | name[2] == 't' && | |
7845 | name[3] == 'p') | |
7846 | { | |
7847 | switch (name[4]) | |
7848 | { | |
7849 | case 'g': | |
7850 | if (name[5] == 'r' && | |
7851 | name[6] == 'p') | |
7852 | { /* getpgrp */ | |
7853 | return -KEY_getpgrp; | |
7854 | } | |
7855 | ||
7856 | goto unknown; | |
7857 | ||
7858 | case 'p': | |
7859 | if (name[5] == 'i' && | |
7860 | name[6] == 'd') | |
7861 | { /* getppid */ | |
7862 | return -KEY_getppid; | |
7863 | } | |
7864 | ||
7865 | goto unknown; | |
7866 | ||
7867 | default: | |
7868 | goto unknown; | |
7869 | } | |
7870 | } | |
7871 | ||
7872 | goto unknown; | |
7873 | ||
7874 | case 'l': | |
7875 | if (name[1] == 'c' && | |
7876 | name[2] == 'f' && | |
7877 | name[3] == 'i' && | |
7878 | name[4] == 'r' && | |
7879 | name[5] == 's' && | |
7880 | name[6] == 't') | |
7881 | { /* lcfirst */ | |
7882 | return -KEY_lcfirst; | |
7883 | } | |
7884 | ||
7885 | goto unknown; | |
7886 | ||
7887 | case 'o': | |
7888 | if (name[1] == 'p' && | |
7889 | name[2] == 'e' && | |
7890 | name[3] == 'n' && | |
7891 | name[4] == 'd' && | |
7892 | name[5] == 'i' && | |
7893 | name[6] == 'r') | |
7894 | { /* opendir */ | |
7895 | return -KEY_opendir; | |
7896 | } | |
7897 | ||
7898 | goto unknown; | |
7899 | ||
7900 | case 'p': | |
7901 | if (name[1] == 'a' && | |
7902 | name[2] == 'c' && | |
7903 | name[3] == 'k' && | |
7904 | name[4] == 'a' && | |
7905 | name[5] == 'g' && | |
7906 | name[6] == 'e') | |
7907 | { /* package */ | |
7908 | return KEY_package; | |
7909 | } | |
7910 | ||
7911 | goto unknown; | |
7912 | ||
7913 | case 'r': | |
7914 | if (name[1] == 'e') | |
7915 | { | |
7916 | switch (name[2]) | |
7917 | { | |
7918 | case 'a': | |
7919 | if (name[3] == 'd' && | |
7920 | name[4] == 'd' && | |
7921 | name[5] == 'i' && | |
7922 | name[6] == 'r') | |
7923 | { /* readdir */ | |
7924 | return -KEY_readdir; | |
7925 | } | |
7926 | ||
7927 | goto unknown; | |
7928 | ||
7929 | case 'q': | |
7930 | if (name[3] == 'u' && | |
7931 | name[4] == 'i' && | |
7932 | name[5] == 'r' && | |
7933 | name[6] == 'e') | |
7934 | { /* require */ | |
7935 | return KEY_require; | |
7936 | } | |
7937 | ||
7938 | goto unknown; | |
7939 | ||
7940 | case 'v': | |
7941 | if (name[3] == 'e' && | |
7942 | name[4] == 'r' && | |
7943 | name[5] == 's' && | |
7944 | name[6] == 'e') | |
7945 | { /* reverse */ | |
7946 | return -KEY_reverse; | |
7947 | } | |
7948 | ||
7949 | goto unknown; | |
7950 | ||
7951 | default: | |
7952 | goto unknown; | |
7953 | } | |
7954 | } | |
7955 | ||
7956 | goto unknown; | |
7957 | ||
7958 | case 's': | |
7959 | switch (name[1]) | |
7960 | { | |
7961 | case 'e': | |
7962 | switch (name[2]) | |
7963 | { | |
7964 | case 'e': | |
7965 | if (name[3] == 'k' && | |
7966 | name[4] == 'd' && | |
7967 | name[5] == 'i' && | |
7968 | name[6] == 'r') | |
7969 | { /* seekdir */ | |
7970 | return -KEY_seekdir; | |
7971 | } | |
7972 | ||
7973 | goto unknown; | |
7974 | ||
7975 | case 't': | |
7976 | if (name[3] == 'p' && | |
7977 | name[4] == 'g' && | |
7978 | name[5] == 'r' && | |
7979 | name[6] == 'p') | |
7980 | { /* setpgrp */ | |
7981 | return -KEY_setpgrp; | |
7982 | } | |
7983 | ||
7984 | goto unknown; | |
7985 | ||
7986 | default: | |
7987 | goto unknown; | |
7988 | } | |
7989 | ||
7990 | case 'h': | |
7991 | if (name[2] == 'm' && | |
7992 | name[3] == 'r' && | |
7993 | name[4] == 'e' && | |
7994 | name[5] == 'a' && | |
7995 | name[6] == 'd') | |
7996 | { /* shmread */ | |
7997 | return -KEY_shmread; | |
7998 | } | |
7999 | ||
8000 | goto unknown; | |
8001 | ||
8002 | case 'p': | |
8003 | if (name[2] == 'r' && | |
8004 | name[3] == 'i' && | |
8005 | name[4] == 'n' && | |
8006 | name[5] == 't' && | |
8007 | name[6] == 'f') | |
8008 | { /* sprintf */ | |
8009 | return -KEY_sprintf; | |
8010 | } | |
8011 | ||
8012 | goto unknown; | |
8013 | ||
8014 | case 'y': | |
8015 | switch (name[2]) | |
8016 | { | |
8017 | case 'm': | |
8018 | if (name[3] == 'l' && | |
8019 | name[4] == 'i' && | |
8020 | name[5] == 'n' && | |
8021 | name[6] == 'k') | |
8022 | { /* symlink */ | |
8023 | return -KEY_symlink; | |
8024 | } | |
8025 | ||
8026 | goto unknown; | |
8027 | ||
8028 | case 's': | |
8029 | switch (name[3]) | |
8030 | { | |
8031 | case 'c': | |
8032 | if (name[4] == 'a' && | |
8033 | name[5] == 'l' && | |
8034 | name[6] == 'l') | |
8035 | { /* syscall */ | |
8036 | return -KEY_syscall; | |
8037 | } | |
8038 | ||
8039 | goto unknown; | |
8040 | ||
8041 | case 'o': | |
8042 | if (name[4] == 'p' && | |
8043 | name[5] == 'e' && | |
8044 | name[6] == 'n') | |
8045 | { /* sysopen */ | |
8046 | return -KEY_sysopen; | |
8047 | } | |
8048 | ||
8049 | goto unknown; | |
8050 | ||
8051 | case 'r': | |
8052 | if (name[4] == 'e' && | |
8053 | name[5] == 'a' && | |
8054 | name[6] == 'd') | |
8055 | { /* sysread */ | |
8056 | return -KEY_sysread; | |
8057 | } | |
8058 | ||
8059 | goto unknown; | |
8060 | ||
8061 | case 's': | |
8062 | if (name[4] == 'e' && | |
8063 | name[5] == 'e' && | |
8064 | name[6] == 'k') | |
8065 | { /* sysseek */ | |
8066 | return -KEY_sysseek; | |
8067 | } | |
8068 | ||
8069 | goto unknown; | |
8070 | ||
8071 | default: | |
8072 | goto unknown; | |
8073 | } | |
8074 | ||
8075 | default: | |
8076 | goto unknown; | |
8077 | } | |
8078 | ||
8079 | default: | |
8080 | goto unknown; | |
8081 | } | |
8082 | ||
8083 | case 't': | |
8084 | if (name[1] == 'e' && | |
8085 | name[2] == 'l' && | |
8086 | name[3] == 'l' && | |
8087 | name[4] == 'd' && | |
8088 | name[5] == 'i' && | |
8089 | name[6] == 'r') | |
8090 | { /* telldir */ | |
8091 | return -KEY_telldir; | |
8092 | } | |
8093 | ||
8094 | goto unknown; | |
8095 | ||
8096 | case 'u': | |
8097 | switch (name[1]) | |
8098 | { | |
8099 | case 'c': | |
8100 | if (name[2] == 'f' && | |
8101 | name[3] == 'i' && | |
8102 | name[4] == 'r' && | |
8103 | name[5] == 's' && | |
8104 | name[6] == 't') | |
8105 | { /* ucfirst */ | |
8106 | return -KEY_ucfirst; | |
8107 | } | |
8108 | ||
8109 | goto unknown; | |
8110 | ||
8111 | case 'n': | |
8112 | if (name[2] == 's' && | |
8113 | name[3] == 'h' && | |
8114 | name[4] == 'i' && | |
8115 | name[5] == 'f' && | |
8116 | name[6] == 't') | |
8117 | { /* unshift */ | |
8118 | return -KEY_unshift; | |
8119 | } | |
8120 | ||
8121 | goto unknown; | |
8122 | ||
8123 | default: | |
8124 | goto unknown; | |
8125 | } | |
8126 | ||
8127 | case 'w': | |
8128 | if (name[1] == 'a' && | |
8129 | name[2] == 'i' && | |
8130 | name[3] == 't' && | |
8131 | name[4] == 'p' && | |
8132 | name[5] == 'i' && | |
8133 | name[6] == 'd') | |
8134 | { /* waitpid */ | |
8135 | return -KEY_waitpid; | |
8136 | } | |
8137 | ||
8138 | goto unknown; | |
8139 | ||
8140 | default: | |
8141 | goto unknown; | |
8142 | } | |
8143 | ||
8144 | case 8: /* 26 tokens of length 8 */ | |
8145 | switch (name[0]) | |
8146 | { | |
8147 | case 'A': | |
8148 | if (name[1] == 'U' && | |
8149 | name[2] == 'T' && | |
8150 | name[3] == 'O' && | |
8151 | name[4] == 'L' && | |
8152 | name[5] == 'O' && | |
8153 | name[6] == 'A' && | |
8154 | name[7] == 'D') | |
8155 | { /* AUTOLOAD */ | |
8156 | return KEY_AUTOLOAD; | |
8157 | } | |
8158 | ||
8159 | goto unknown; | |
8160 | ||
8161 | case '_': | |
8162 | if (name[1] == '_') | |
8163 | { | |
8164 | switch (name[2]) | |
8165 | { | |
8166 | case 'D': | |
8167 | if (name[3] == 'A' && | |
8168 | name[4] == 'T' && | |
8169 | name[5] == 'A' && | |
8170 | name[6] == '_' && | |
8171 | name[7] == '_') | |
8172 | { /* __DATA__ */ | |
8173 | return KEY___DATA__; | |
8174 | } | |
8175 | ||
8176 | goto unknown; | |
8177 | ||
8178 | case 'F': | |
8179 | if (name[3] == 'I' && | |
8180 | name[4] == 'L' && | |
8181 | name[5] == 'E' && | |
8182 | name[6] == '_' && | |
8183 | name[7] == '_') | |
8184 | { /* __FILE__ */ | |
8185 | return -KEY___FILE__; | |
8186 | } | |
8187 | ||
8188 | goto unknown; | |
8189 | ||
8190 | case 'L': | |
8191 | if (name[3] == 'I' && | |
8192 | name[4] == 'N' && | |
8193 | name[5] == 'E' && | |
8194 | name[6] == '_' && | |
8195 | name[7] == '_') | |
8196 | { /* __LINE__ */ | |
8197 | return -KEY___LINE__; | |
8198 | } | |
8199 | ||
8200 | goto unknown; | |
8201 | ||
8202 | default: | |
8203 | goto unknown; | |
8204 | } | |
8205 | } | |
8206 | ||
8207 | goto unknown; | |
8208 | ||
8209 | case 'c': | |
8210 | switch (name[1]) | |
8211 | { | |
8212 | case 'l': | |
8213 | if (name[2] == 'o' && | |
8214 | name[3] == 's' && | |
8215 | name[4] == 'e' && | |
8216 | name[5] == 'd' && | |
8217 | name[6] == 'i' && | |
8218 | name[7] == 'r') | |
8219 | { /* closedir */ | |
8220 | return -KEY_closedir; | |
8221 | } | |
8222 | ||
8223 | goto unknown; | |
8224 | ||
8225 | case 'o': | |
8226 | if (name[2] == 'n' && | |
8227 | name[3] == 't' && | |
8228 | name[4] == 'i' && | |
8229 | name[5] == 'n' && | |
8230 | name[6] == 'u' && | |
8231 | name[7] == 'e') | |
8232 | { /* continue */ | |
8233 | return -KEY_continue; | |
8234 | } | |
8235 | ||
8236 | goto unknown; | |
8237 | ||
8238 | default: | |
8239 | goto unknown; | |
8240 | } | |
8241 | ||
8242 | case 'd': | |
8243 | if (name[1] == 'b' && | |
8244 | name[2] == 'm' && | |
8245 | name[3] == 'c' && | |
8246 | name[4] == 'l' && | |
8247 | name[5] == 'o' && | |
8248 | name[6] == 's' && | |
8249 | name[7] == 'e') | |
8250 | { /* dbmclose */ | |
8251 | return -KEY_dbmclose; | |
8252 | } | |
8253 | ||
8254 | goto unknown; | |
8255 | ||
8256 | case 'e': | |
8257 | if (name[1] == 'n' && | |
8258 | name[2] == 'd') | |
8259 | { | |
8260 | switch (name[3]) | |
8261 | { | |
8262 | case 'g': | |
8263 | if (name[4] == 'r' && | |
8264 | name[5] == 'e' && | |
8265 | name[6] == 'n' && | |
8266 | name[7] == 't') | |
8267 | { /* endgrent */ | |
8268 | return -KEY_endgrent; | |
8269 | } | |
8270 | ||
8271 | goto unknown; | |
8272 | ||
8273 | case 'p': | |
8274 | if (name[4] == 'w' && | |
8275 | name[5] == 'e' && | |
8276 | name[6] == 'n' && | |
8277 | name[7] == 't') | |
8278 | { /* endpwent */ | |
8279 | return -KEY_endpwent; | |
8280 | } | |
8281 | ||
8282 | goto unknown; | |
8283 | ||
8284 | default: | |
8285 | goto unknown; | |
8286 | } | |
8287 | } | |
8288 | ||
8289 | goto unknown; | |
8290 | ||
8291 | case 'f': | |
8292 | if (name[1] == 'o' && | |
8293 | name[2] == 'r' && | |
8294 | name[3] == 'm' && | |
8295 | name[4] == 'l' && | |
8296 | name[5] == 'i' && | |
8297 | name[6] == 'n' && | |
8298 | name[7] == 'e') | |
8299 | { /* formline */ | |
8300 | return -KEY_formline; | |
8301 | } | |
8302 | ||
8303 | goto unknown; | |
8304 | ||
8305 | case 'g': | |
8306 | if (name[1] == 'e' && | |
8307 | name[2] == 't') | |
8308 | { | |
8309 | switch (name[3]) | |
8310 | { | |
8311 | case 'g': | |
8312 | if (name[4] == 'r') | |
8313 | { | |
8314 | switch (name[5]) | |
8315 | { | |
8316 | case 'e': | |
8317 | if (name[6] == 'n' && | |
8318 | name[7] == 't') | |
8319 | { /* getgrent */ | |
8320 | return -KEY_getgrent; | |
8321 | } | |
8322 | ||
8323 | goto unknown; | |
8324 | ||
8325 | case 'g': | |
8326 | if (name[6] == 'i' && | |
8327 | name[7] == 'd') | |
8328 | { /* getgrgid */ | |
8329 | return -KEY_getgrgid; | |
8330 | } | |
8331 | ||
8332 | goto unknown; | |
8333 | ||
8334 | case 'n': | |
8335 | if (name[6] == 'a' && | |
8336 | name[7] == 'm') | |
8337 | { /* getgrnam */ | |
8338 | return -KEY_getgrnam; | |
8339 | } | |
8340 | ||
8341 | goto unknown; | |
8342 | ||
8343 | default: | |
8344 | goto unknown; | |
8345 | } | |
8346 | } | |
8347 | ||
8348 | goto unknown; | |
8349 | ||
8350 | case 'l': | |
8351 | if (name[4] == 'o' && | |
8352 | name[5] == 'g' && | |
8353 | name[6] == 'i' && | |
8354 | name[7] == 'n') | |
8355 | { /* getlogin */ | |
8356 | return -KEY_getlogin; | |
8357 | } | |
8358 | ||
8359 | goto unknown; | |
8360 | ||
8361 | case 'p': | |
8362 | if (name[4] == 'w') | |
8363 | { | |
8364 | switch (name[5]) | |
8365 | { | |
8366 | case 'e': | |
8367 | if (name[6] == 'n' && | |
8368 | name[7] == 't') | |
8369 | { /* getpwent */ | |
8370 | return -KEY_getpwent; | |
8371 | } | |
8372 | ||
8373 | goto unknown; | |
8374 | ||
8375 | case 'n': | |
8376 | if (name[6] == 'a' && | |
8377 | name[7] == 'm') | |
8378 | { /* getpwnam */ | |
8379 | return -KEY_getpwnam; | |
8380 | } | |
8381 | ||
8382 | goto unknown; | |
8383 | ||
8384 | case 'u': | |
8385 | if (name[6] == 'i' && | |
8386 | name[7] == 'd') | |
8387 | { /* getpwuid */ | |
8388 | return -KEY_getpwuid; | |
8389 | } | |
8390 | ||
8391 | goto unknown; | |
8392 | ||
8393 | default: | |
8394 | goto unknown; | |
8395 | } | |
8396 | } | |
8397 | ||
8398 | goto unknown; | |
8399 | ||
8400 | default: | |
8401 | goto unknown; | |
8402 | } | |
8403 | } | |
8404 | ||
8405 | goto unknown; | |
8406 | ||
8407 | case 'r': | |
8408 | if (name[1] == 'e' && | |
8409 | name[2] == 'a' && | |
8410 | name[3] == 'd') | |
8411 | { | |
8412 | switch (name[4]) | |
8413 | { | |
8414 | case 'l': | |
8415 | if (name[5] == 'i' && | |
8416 | name[6] == 'n') | |
8417 | { | |
8418 | switch (name[7]) | |
8419 | { | |
8420 | case 'e': | |
8421 | { /* readline */ | |
8422 | return -KEY_readline; | |
8423 | } | |
8424 | ||
4c3bbe0f MHM |
8425 | case 'k': |
8426 | { /* readlink */ | |
8427 | return -KEY_readlink; | |
8428 | } | |
8429 | ||
4c3bbe0f MHM |
8430 | default: |
8431 | goto unknown; | |
8432 | } | |
8433 | } | |
8434 | ||
8435 | goto unknown; | |
8436 | ||
8437 | case 'p': | |
8438 | if (name[5] == 'i' && | |
8439 | name[6] == 'p' && | |
8440 | name[7] == 'e') | |
8441 | { /* readpipe */ | |
8442 | return -KEY_readpipe; | |
8443 | } | |
8444 | ||
8445 | goto unknown; | |
8446 | ||
8447 | default: | |
8448 | goto unknown; | |
8449 | } | |
8450 | } | |
8451 | ||
8452 | goto unknown; | |
8453 | ||
8454 | case 's': | |
8455 | switch (name[1]) | |
8456 | { | |
8457 | case 'e': | |
8458 | if (name[2] == 't') | |
8459 | { | |
8460 | switch (name[3]) | |
8461 | { | |
8462 | case 'g': | |
8463 | if (name[4] == 'r' && | |
8464 | name[5] == 'e' && | |
8465 | name[6] == 'n' && | |
8466 | name[7] == 't') | |
8467 | { /* setgrent */ | |
8468 | return -KEY_setgrent; | |
8469 | } | |
8470 | ||
8471 | goto unknown; | |
8472 | ||
8473 | case 'p': | |
8474 | if (name[4] == 'w' && | |
8475 | name[5] == 'e' && | |
8476 | name[6] == 'n' && | |
8477 | name[7] == 't') | |
8478 | { /* setpwent */ | |
8479 | return -KEY_setpwent; | |
8480 | } | |
8481 | ||
8482 | goto unknown; | |
8483 | ||
8484 | default: | |
8485 | goto unknown; | |
8486 | } | |
8487 | } | |
8488 | ||
8489 | goto unknown; | |
8490 | ||
8491 | case 'h': | |
8492 | switch (name[2]) | |
8493 | { | |
8494 | case 'm': | |
8495 | if (name[3] == 'w' && | |
8496 | name[4] == 'r' && | |
8497 | name[5] == 'i' && | |
8498 | name[6] == 't' && | |
8499 | name[7] == 'e') | |
8500 | { /* shmwrite */ | |
8501 | return -KEY_shmwrite; | |
8502 | } | |
8503 | ||
8504 | goto unknown; | |
8505 | ||
8506 | case 'u': | |
8507 | if (name[3] == 't' && | |
8508 | name[4] == 'd' && | |
8509 | name[5] == 'o' && | |
8510 | name[6] == 'w' && | |
8511 | name[7] == 'n') | |
8512 | { /* shutdown */ | |
8513 | return -KEY_shutdown; | |
8514 | } | |
8515 | ||
8516 | goto unknown; | |
8517 | ||
8518 | default: | |
8519 | goto unknown; | |
8520 | } | |
8521 | ||
8522 | case 'y': | |
8523 | if (name[2] == 's' && | |
8524 | name[3] == 'w' && | |
8525 | name[4] == 'r' && | |
8526 | name[5] == 'i' && | |
8527 | name[6] == 't' && | |
8528 | name[7] == 'e') | |
8529 | { /* syswrite */ | |
8530 | return -KEY_syswrite; | |
8531 | } | |
8532 | ||
8533 | goto unknown; | |
8534 | ||
8535 | default: | |
8536 | goto unknown; | |
8537 | } | |
8538 | ||
8539 | case 't': | |
8540 | if (name[1] == 'r' && | |
8541 | name[2] == 'u' && | |
8542 | name[3] == 'n' && | |
8543 | name[4] == 'c' && | |
8544 | name[5] == 'a' && | |
8545 | name[6] == 't' && | |
8546 | name[7] == 'e') | |
8547 | { /* truncate */ | |
8548 | return -KEY_truncate; | |
8549 | } | |
8550 | ||
8551 | goto unknown; | |
8552 | ||
8553 | default: | |
8554 | goto unknown; | |
8555 | } | |
8556 | ||
8557 | case 9: /* 8 tokens of length 9 */ | |
8558 | switch (name[0]) | |
8559 | { | |
8560 | case 'e': | |
8561 | if (name[1] == 'n' && | |
8562 | name[2] == 'd' && | |
8563 | name[3] == 'n' && | |
8564 | name[4] == 'e' && | |
8565 | name[5] == 't' && | |
8566 | name[6] == 'e' && | |
8567 | name[7] == 'n' && | |
8568 | name[8] == 't') | |
8569 | { /* endnetent */ | |
8570 | return -KEY_endnetent; | |
8571 | } | |
8572 | ||
8573 | goto unknown; | |
8574 | ||
8575 | case 'g': | |
8576 | if (name[1] == 'e' && | |
8577 | name[2] == 't' && | |
8578 | name[3] == 'n' && | |
8579 | name[4] == 'e' && | |
8580 | name[5] == 't' && | |
8581 | name[6] == 'e' && | |
8582 | name[7] == 'n' && | |
8583 | name[8] == 't') | |
8584 | { /* getnetent */ | |
8585 | return -KEY_getnetent; | |
8586 | } | |
8587 | ||
8588 | goto unknown; | |
8589 | ||
8590 | case 'l': | |
8591 | if (name[1] == 'o' && | |
8592 | name[2] == 'c' && | |
8593 | name[3] == 'a' && | |
8594 | name[4] == 'l' && | |
8595 | name[5] == 't' && | |
8596 | name[6] == 'i' && | |
8597 | name[7] == 'm' && | |
8598 | name[8] == 'e') | |
8599 | { /* localtime */ | |
8600 | return -KEY_localtime; | |
8601 | } | |
8602 | ||
8603 | goto unknown; | |
8604 | ||
8605 | case 'p': | |
8606 | if (name[1] == 'r' && | |
8607 | name[2] == 'o' && | |
8608 | name[3] == 't' && | |
8609 | name[4] == 'o' && | |
8610 | name[5] == 't' && | |
8611 | name[6] == 'y' && | |
8612 | name[7] == 'p' && | |
8613 | name[8] == 'e') | |
8614 | { /* prototype */ | |
8615 | return KEY_prototype; | |
8616 | } | |
8617 | ||
8618 | goto unknown; | |
8619 | ||
8620 | case 'q': | |
8621 | if (name[1] == 'u' && | |
8622 | name[2] == 'o' && | |
8623 | name[3] == 't' && | |
8624 | name[4] == 'e' && | |
8625 | name[5] == 'm' && | |
8626 | name[6] == 'e' && | |
8627 | name[7] == 't' && | |
8628 | name[8] == 'a') | |
8629 | { /* quotemeta */ | |
8630 | return -KEY_quotemeta; | |
8631 | } | |
8632 | ||
8633 | goto unknown; | |
8634 | ||
8635 | case 'r': | |
8636 | if (name[1] == 'e' && | |
8637 | name[2] == 'w' && | |
8638 | name[3] == 'i' && | |
8639 | name[4] == 'n' && | |
8640 | name[5] == 'd' && | |
8641 | name[6] == 'd' && | |
8642 | name[7] == 'i' && | |
8643 | name[8] == 'r') | |
8644 | { /* rewinddir */ | |
8645 | return -KEY_rewinddir; | |
8646 | } | |
8647 | ||
8648 | goto unknown; | |
8649 | ||
8650 | case 's': | |
8651 | if (name[1] == 'e' && | |
8652 | name[2] == 't' && | |
8653 | name[3] == 'n' && | |
8654 | name[4] == 'e' && | |
8655 | name[5] == 't' && | |
8656 | name[6] == 'e' && | |
8657 | name[7] == 'n' && | |
8658 | name[8] == 't') | |
8659 | { /* setnetent */ | |
8660 | return -KEY_setnetent; | |
8661 | } | |
8662 | ||
8663 | goto unknown; | |
8664 | ||
8665 | case 'w': | |
8666 | if (name[1] == 'a' && | |
8667 | name[2] == 'n' && | |
8668 | name[3] == 't' && | |
8669 | name[4] == 'a' && | |
8670 | name[5] == 'r' && | |
8671 | name[6] == 'r' && | |
8672 | name[7] == 'a' && | |
8673 | name[8] == 'y') | |
8674 | { /* wantarray */ | |
8675 | return -KEY_wantarray; | |
8676 | } | |
8677 | ||
8678 | goto unknown; | |
8679 | ||
8680 | default: | |
8681 | goto unknown; | |
8682 | } | |
8683 | ||
8684 | case 10: /* 9 tokens of length 10 */ | |
8685 | switch (name[0]) | |
8686 | { | |
8687 | case 'e': | |
8688 | if (name[1] == 'n' && | |
8689 | name[2] == 'd') | |
8690 | { | |
8691 | switch (name[3]) | |
8692 | { | |
8693 | case 'h': | |
8694 | if (name[4] == 'o' && | |
8695 | name[5] == 's' && | |
8696 | name[6] == 't' && | |
8697 | name[7] == 'e' && | |
8698 | name[8] == 'n' && | |
8699 | name[9] == 't') | |
8700 | { /* endhostent */ | |
8701 | return -KEY_endhostent; | |
8702 | } | |
8703 | ||
8704 | goto unknown; | |
8705 | ||
8706 | case 's': | |
8707 | if (name[4] == 'e' && | |
8708 | name[5] == 'r' && | |
8709 | name[6] == 'v' && | |
8710 | name[7] == 'e' && | |
8711 | name[8] == 'n' && | |
8712 | name[9] == 't') | |
8713 | { /* endservent */ | |
8714 | return -KEY_endservent; | |
8715 | } | |
8716 | ||
8717 | goto unknown; | |
8718 | ||
8719 | default: | |
8720 | goto unknown; | |
8721 | } | |
8722 | } | |
8723 | ||
8724 | goto unknown; | |
8725 | ||
8726 | case 'g': | |
8727 | if (name[1] == 'e' && | |
8728 | name[2] == 't') | |
8729 | { | |
8730 | switch (name[3]) | |
8731 | { | |
8732 | case 'h': | |
8733 | if (name[4] == 'o' && | |
8734 | name[5] == 's' && | |
8735 | name[6] == 't' && | |
8736 | name[7] == 'e' && | |
8737 | name[8] == 'n' && | |
8738 | name[9] == 't') | |
8739 | { /* gethostent */ | |
8740 | return -KEY_gethostent; | |
8741 | } | |
8742 | ||
8743 | goto unknown; | |
8744 | ||
8745 | case 's': | |
8746 | switch (name[4]) | |
8747 | { | |
8748 | case 'e': | |
8749 | if (name[5] == 'r' && | |
8750 | name[6] == 'v' && | |
8751 | name[7] == 'e' && | |
8752 | name[8] == 'n' && | |
8753 | name[9] == 't') | |
8754 | { /* getservent */ | |
8755 | return -KEY_getservent; | |
8756 | } | |
8757 | ||
8758 | goto unknown; | |
8759 | ||
8760 | case 'o': | |
8761 | if (name[5] == 'c' && | |
8762 | name[6] == 'k' && | |
8763 | name[7] == 'o' && | |
8764 | name[8] == 'p' && | |
8765 | name[9] == 't') | |
8766 | { /* getsockopt */ | |
8767 | return -KEY_getsockopt; | |
8768 | } | |
8769 | ||
8770 | goto unknown; | |
8771 | ||
8772 | default: | |
8773 | goto unknown; | |
8774 | } | |
8775 | ||
8776 | default: | |
8777 | goto unknown; | |
8778 | } | |
8779 | } | |
8780 | ||
8781 | goto unknown; | |
8782 | ||
8783 | case 's': | |
8784 | switch (name[1]) | |
8785 | { | |
8786 | case 'e': | |
8787 | if (name[2] == 't') | |
8788 | { | |
8789 | switch (name[3]) | |
8790 | { | |
8791 | case 'h': | |
8792 | if (name[4] == 'o' && | |
8793 | name[5] == 's' && | |
8794 | name[6] == 't' && | |
8795 | name[7] == 'e' && | |
8796 | name[8] == 'n' && | |
8797 | name[9] == 't') | |
8798 | { /* sethostent */ | |
8799 | return -KEY_sethostent; | |
8800 | } | |
8801 | ||
8802 | goto unknown; | |
8803 | ||
8804 | case 's': | |
8805 | switch (name[4]) | |
8806 | { | |
8807 | case 'e': | |
8808 | if (name[5] == 'r' && | |
8809 | name[6] == 'v' && | |
8810 | name[7] == 'e' && | |
8811 | name[8] == 'n' && | |
8812 | name[9] == 't') | |
8813 | { /* setservent */ | |
8814 | return -KEY_setservent; | |
8815 | } | |
8816 | ||
8817 | goto unknown; | |
8818 | ||
8819 | case 'o': | |
8820 | if (name[5] == 'c' && | |
8821 | name[6] == 'k' && | |
8822 | name[7] == 'o' && | |
8823 | name[8] == 'p' && | |
8824 | name[9] == 't') | |
8825 | { /* setsockopt */ | |
8826 | return -KEY_setsockopt; | |
8827 | } | |
8828 | ||
8829 | goto unknown; | |
8830 | ||
8831 | default: | |
8832 | goto unknown; | |
8833 | } | |
8834 | ||
8835 | default: | |
8836 | goto unknown; | |
8837 | } | |
8838 | } | |
8839 | ||
8840 | goto unknown; | |
8841 | ||
8842 | case 'o': | |
8843 | if (name[2] == 'c' && | |
8844 | name[3] == 'k' && | |
8845 | name[4] == 'e' && | |
8846 | name[5] == 't' && | |
8847 | name[6] == 'p' && | |
8848 | name[7] == 'a' && | |
8849 | name[8] == 'i' && | |
8850 | name[9] == 'r') | |
8851 | { /* socketpair */ | |
8852 | return -KEY_socketpair; | |
8853 | } | |
8854 | ||
8855 | goto unknown; | |
8856 | ||
8857 | default: | |
8858 | goto unknown; | |
8859 | } | |
8860 | ||
8861 | default: | |
8862 | goto unknown; | |
e2e1dd5a | 8863 | } |
4c3bbe0f MHM |
8864 | |
8865 | case 11: /* 8 tokens of length 11 */ | |
8866 | switch (name[0]) | |
8867 | { | |
8868 | case '_': | |
8869 | if (name[1] == '_' && | |
8870 | name[2] == 'P' && | |
8871 | name[3] == 'A' && | |
8872 | name[4] == 'C' && | |
8873 | name[5] == 'K' && | |
8874 | name[6] == 'A' && | |
8875 | name[7] == 'G' && | |
8876 | name[8] == 'E' && | |
8877 | name[9] == '_' && | |
8878 | name[10] == '_') | |
8879 | { /* __PACKAGE__ */ | |
8880 | return -KEY___PACKAGE__; | |
8881 | } | |
8882 | ||
8883 | goto unknown; | |
8884 | ||
8885 | case 'e': | |
8886 | if (name[1] == 'n' && | |
8887 | name[2] == 'd' && | |
8888 | name[3] == 'p' && | |
8889 | name[4] == 'r' && | |
8890 | name[5] == 'o' && | |
8891 | name[6] == 't' && | |
8892 | name[7] == 'o' && | |
8893 | name[8] == 'e' && | |
8894 | name[9] == 'n' && | |
8895 | name[10] == 't') | |
8896 | { /* endprotoent */ | |
8897 | return -KEY_endprotoent; | |
8898 | } | |
8899 | ||
8900 | goto unknown; | |
8901 | ||
8902 | case 'g': | |
8903 | if (name[1] == 'e' && | |
8904 | name[2] == 't') | |
8905 | { | |
8906 | switch (name[3]) | |
8907 | { | |
8908 | case 'p': | |
8909 | switch (name[4]) | |
8910 | { | |
8911 | case 'e': | |
8912 | if (name[5] == 'e' && | |
8913 | name[6] == 'r' && | |
8914 | name[7] == 'n' && | |
8915 | name[8] == 'a' && | |
8916 | name[9] == 'm' && | |
8917 | name[10] == 'e') | |
8918 | { /* getpeername */ | |
8919 | return -KEY_getpeername; | |
8920 | } | |
8921 | ||
8922 | goto unknown; | |
8923 | ||
8924 | case 'r': | |
8925 | switch (name[5]) | |
8926 | { | |
8927 | case 'i': | |
8928 | if (name[6] == 'o' && | |
8929 | name[7] == 'r' && | |
8930 | name[8] == 'i' && | |
8931 | name[9] == 't' && | |
8932 | name[10] == 'y') | |
8933 | { /* getpriority */ | |
8934 | return -KEY_getpriority; | |
8935 | } | |
8936 | ||
8937 | goto unknown; | |
8938 | ||
8939 | case 'o': | |
8940 | if (name[6] == 't' && | |
8941 | name[7] == 'o' && | |
8942 | name[8] == 'e' && | |
8943 | name[9] == 'n' && | |
8944 | name[10] == 't') | |
8945 | { /* getprotoent */ | |
8946 | return -KEY_getprotoent; | |
8947 | } | |
8948 | ||
8949 | goto unknown; | |
8950 | ||
8951 | default: | |
8952 | goto unknown; | |
8953 | } | |
8954 | ||
8955 | default: | |
8956 | goto unknown; | |
8957 | } | |
8958 | ||
8959 | case 's': | |
8960 | if (name[4] == 'o' && | |
8961 | name[5] == 'c' && | |
8962 | name[6] == 'k' && | |
8963 | name[7] == 'n' && | |
8964 | name[8] == 'a' && | |
8965 | name[9] == 'm' && | |
8966 | name[10] == 'e') | |
8967 | { /* getsockname */ | |
8968 | return -KEY_getsockname; | |
8969 | } | |
8970 | ||
8971 | goto unknown; | |
8972 | ||
8973 | default: | |
8974 | goto unknown; | |
8975 | } | |
8976 | } | |
8977 | ||
8978 | goto unknown; | |
8979 | ||
8980 | case 's': | |
8981 | if (name[1] == 'e' && | |
8982 | name[2] == 't' && | |
8983 | name[3] == 'p' && | |
8984 | name[4] == 'r') | |
8985 | { | |
8986 | switch (name[5]) | |
8987 | { | |
8988 | case 'i': | |
8989 | if (name[6] == 'o' && | |
8990 | name[7] == 'r' && | |
8991 | name[8] == 'i' && | |
8992 | name[9] == 't' && | |
8993 | name[10] == 'y') | |
8994 | { /* setpriority */ | |
8995 | return -KEY_setpriority; | |
8996 | } | |
8997 | ||
8998 | goto unknown; | |
8999 | ||
9000 | case 'o': | |
9001 | if (name[6] == 't' && | |
9002 | name[7] == 'o' && | |
9003 | name[8] == 'e' && | |
9004 | name[9] == 'n' && | |
9005 | name[10] == 't') | |
9006 | { /* setprotoent */ | |
9007 | return -KEY_setprotoent; | |
9008 | } | |
9009 | ||
9010 | goto unknown; | |
9011 | ||
9012 | default: | |
9013 | goto unknown; | |
9014 | } | |
9015 | } | |
9016 | ||
9017 | goto unknown; | |
9018 | ||
9019 | default: | |
9020 | goto unknown; | |
e2e1dd5a | 9021 | } |
4c3bbe0f MHM |
9022 | |
9023 | case 12: /* 2 tokens of length 12 */ | |
9024 | if (name[0] == 'g' && | |
9025 | name[1] == 'e' && | |
9026 | name[2] == 't' && | |
9027 | name[3] == 'n' && | |
9028 | name[4] == 'e' && | |
9029 | name[5] == 't' && | |
9030 | name[6] == 'b' && | |
9031 | name[7] == 'y') | |
9032 | { | |
9033 | switch (name[8]) | |
9034 | { | |
9035 | case 'a': | |
9036 | if (name[9] == 'd' && | |
9037 | name[10] == 'd' && | |
9038 | name[11] == 'r') | |
9039 | { /* getnetbyaddr */ | |
9040 | return -KEY_getnetbyaddr; | |
9041 | } | |
9042 | ||
9043 | goto unknown; | |
9044 | ||
9045 | case 'n': | |
9046 | if (name[9] == 'a' && | |
9047 | name[10] == 'm' && | |
9048 | name[11] == 'e') | |
9049 | { /* getnetbyname */ | |
9050 | return -KEY_getnetbyname; | |
9051 | } | |
9052 | ||
9053 | goto unknown; | |
9054 | ||
9055 | default: | |
9056 | goto unknown; | |
9057 | } | |
e2e1dd5a | 9058 | } |
4c3bbe0f MHM |
9059 | |
9060 | goto unknown; | |
9061 | ||
9062 | case 13: /* 4 tokens of length 13 */ | |
9063 | if (name[0] == 'g' && | |
9064 | name[1] == 'e' && | |
9065 | name[2] == 't') | |
9066 | { | |
9067 | switch (name[3]) | |
9068 | { | |
9069 | case 'h': | |
9070 | if (name[4] == 'o' && | |
9071 | name[5] == 's' && | |
9072 | name[6] == 't' && | |
9073 | name[7] == 'b' && | |
9074 | name[8] == 'y') | |
9075 | { | |
9076 | switch (name[9]) | |
9077 | { | |
9078 | case 'a': | |
9079 | if (name[10] == 'd' && | |
9080 | name[11] == 'd' && | |
9081 | name[12] == 'r') | |
9082 | { /* gethostbyaddr */ | |
9083 | return -KEY_gethostbyaddr; | |
9084 | } | |
9085 | ||
9086 | goto unknown; | |
9087 | ||
9088 | case 'n': | |
9089 | if (name[10] == 'a' && | |
9090 | name[11] == 'm' && | |
9091 | name[12] == 'e') | |
9092 | { /* gethostbyname */ | |
9093 | return -KEY_gethostbyname; | |
9094 | } | |
9095 | ||
9096 | goto unknown; | |
9097 | ||
9098 | default: | |
9099 | goto unknown; | |
9100 | } | |
9101 | } | |
9102 | ||
9103 | goto unknown; | |
9104 | ||
9105 | case 's': | |
9106 | if (name[4] == 'e' && | |
9107 | name[5] == 'r' && | |
9108 | name[6] == 'v' && | |
9109 | name[7] == 'b' && | |
9110 | name[8] == 'y') | |
9111 | { | |
9112 | switch (name[9]) | |
9113 | { | |
9114 | case 'n': | |
9115 | if (name[10] == 'a' && | |
9116 | name[11] == 'm' && | |
9117 | name[12] == 'e') | |
9118 | { /* getservbyname */ | |
9119 | return -KEY_getservbyname; | |
9120 | } | |
9121 | ||
9122 | goto unknown; | |
9123 | ||
9124 | case 'p': | |
9125 | if (name[10] == 'o' && | |
9126 | name[11] == 'r' && | |
9127 | name[12] == 't') | |
9128 | { /* getservbyport */ | |
9129 | return -KEY_getservbyport; | |
9130 | } | |
9131 | ||
9132 | goto unknown; | |
9133 | ||
9134 | default: | |
9135 | goto unknown; | |
9136 | } | |
9137 | } | |
9138 | ||
9139 | goto unknown; | |
9140 | ||
9141 | default: | |
9142 | goto unknown; | |
9143 | } | |
e2e1dd5a | 9144 | } |
4c3bbe0f MHM |
9145 | |
9146 | goto unknown; | |
9147 | ||
9148 | case 14: /* 1 tokens of length 14 */ | |
9149 | if (name[0] == 'g' && | |
9150 | name[1] == 'e' && | |
9151 | name[2] == 't' && | |
9152 | name[3] == 'p' && | |
9153 | name[4] == 'r' && | |
9154 | name[5] == 'o' && | |
9155 | name[6] == 't' && | |
9156 | name[7] == 'o' && | |
9157 | name[8] == 'b' && | |
9158 | name[9] == 'y' && | |
9159 | name[10] == 'n' && | |
9160 | name[11] == 'a' && | |
9161 | name[12] == 'm' && | |
9162 | name[13] == 'e') | |
9163 | { /* getprotobyname */ | |
9164 | return -KEY_getprotobyname; | |
9165 | } | |
9166 | ||
9167 | goto unknown; | |
9168 | ||
9169 | case 16: /* 1 tokens of length 16 */ | |
9170 | if (name[0] == 'g' && | |
9171 | name[1] == 'e' && | |
9172 | name[2] == 't' && | |
9173 | name[3] == 'p' && | |
9174 | name[4] == 'r' && | |
9175 | name[5] == 'o' && | |
9176 | name[6] == 't' && | |
9177 | name[7] == 'o' && | |
9178 | name[8] == 'b' && | |
9179 | name[9] == 'y' && | |
9180 | name[10] == 'n' && | |
9181 | name[11] == 'u' && | |
9182 | name[12] == 'm' && | |
9183 | name[13] == 'b' && | |
9184 | name[14] == 'e' && | |
9185 | name[15] == 'r') | |
9186 | { /* getprotobynumber */ | |
9187 | return -KEY_getprotobynumber; | |
9188 | } | |
9189 | ||
9190 | goto unknown; | |
9191 | ||
9192 | default: | |
9193 | goto unknown; | |
e2e1dd5a | 9194 | } |
4c3bbe0f MHM |
9195 | |
9196 | unknown: | |
e2e1dd5a | 9197 | return 0; |
a687059c LW |
9198 | } |
9199 | ||
76e3520e | 9200 | STATIC void |
f54cb97a | 9201 | S_checkcomma(pTHX_ register char *s, const char *name, const char *what) |
a687059c | 9202 | { |
97aff369 | 9203 | dVAR; |
f54cb97a | 9204 | const char *w; |
2f3197b3 | 9205 | |
d008e5eb | 9206 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
9207 | if (ckWARN(WARN_SYNTAX)) { |
9208 | int level = 1; | |
9209 | for (w = s+2; *w && level; w++) { | |
9210 | if (*w == '(') | |
9211 | ++level; | |
9212 | else if (*w == ')') | |
9213 | --level; | |
9214 | } | |
9215 | if (*w) | |
9216 | for (; *w && isSPACE(*w); w++) ; | |
9217 | if (!*w || !strchr(";|})]oaiuw!=", *w)) /* an advisory hack only... */ | |
9014280d | 9218 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 9219 | "%s (...) interpreted as function",name); |
d008e5eb | 9220 | } |
2f3197b3 | 9221 | } |
3280af22 | 9222 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 9223 | s++; |
a687059c LW |
9224 | if (*s == '(') |
9225 | s++; | |
3280af22 | 9226 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 9227 | s++; |
7e2040f0 | 9228 | if (isIDFIRST_lazy_if(s,UTF)) { |
2f3197b3 | 9229 | w = s++; |
7e2040f0 | 9230 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 9231 | s++; |
3280af22 | 9232 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 9233 | s++; |
e929a76b | 9234 | if (*s == ',') { |
0d863452 | 9235 | I32 kw; |
f54cb97a | 9236 | *s = '\0'; /* XXX If we didn't do this, we could const a lot of toke.c */ |
864dbfa3 | 9237 | kw = keyword(w, s - w) || get_cv(w, FALSE) != 0; |
e929a76b | 9238 | *s = ','; |
463ee0b2 | 9239 | if (kw) |
e929a76b | 9240 | return; |
cea2e8a9 | 9241 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
9242 | } |
9243 | } | |
9244 | } | |
9245 | ||
423cee85 JH |
9246 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
9247 | Best used as sv=new_constant(..., sv, ...). | |
9248 | If s, pv are NULL, calls subroutine with one argument, | |
9249 | and type is used with error messages only. */ | |
9250 | ||
b3ac6de7 | 9251 | STATIC SV * |
7fc63493 | 9252 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, SV *sv, SV *pv, |
9b0e499b | 9253 | const char *type) |
b3ac6de7 | 9254 | { |
27da23d5 | 9255 | dVAR; dSP; |
890ce7af | 9256 | HV * const table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 9257 | SV *res; |
b3ac6de7 IZ |
9258 | SV **cvp; |
9259 | SV *cv, *typesv; | |
89e33a05 | 9260 | const char *why1 = "", *why2 = "", *why3 = ""; |
4e553d73 | 9261 | |
f0af216f | 9262 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
9263 | SV *msg; |
9264 | ||
f0af216f | 9265 | why2 = strEQ(key,"charnames") |
41ab332f | 9266 | ? "(possibly a missing \"use charnames ...\")" |
f0af216f | 9267 | : ""; |
4e553d73 | 9268 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
9269 | (type ? type: "undef"), why2); |
9270 | ||
9271 | /* This is convoluted and evil ("goto considered harmful") | |
9272 | * but I do not understand the intricacies of all the different | |
9273 | * failure modes of %^H in here. The goal here is to make | |
9274 | * the most probable error message user-friendly. --jhi */ | |
9275 | ||
9276 | goto msgdone; | |
9277 | ||
423cee85 | 9278 | report: |
4e553d73 | 9279 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 9280 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 9281 | msgdone: |
95a20fc0 | 9282 | yyerror(SvPVX_const(msg)); |
423cee85 JH |
9283 | SvREFCNT_dec(msg); |
9284 | return sv; | |
9285 | } | |
b3ac6de7 IZ |
9286 | cvp = hv_fetch(table, key, strlen(key), FALSE); |
9287 | if (!cvp || !SvOK(*cvp)) { | |
423cee85 JH |
9288 | why1 = "$^H{"; |
9289 | why2 = key; | |
f0af216f | 9290 | why3 = "} is not defined"; |
423cee85 | 9291 | goto report; |
b3ac6de7 IZ |
9292 | } |
9293 | sv_2mortal(sv); /* Parent created it permanently */ | |
9294 | cv = *cvp; | |
423cee85 JH |
9295 | if (!pv && s) |
9296 | pv = sv_2mortal(newSVpvn(s, len)); | |
9297 | if (type && pv) | |
9298 | typesv = sv_2mortal(newSVpv(type, 0)); | |
b3ac6de7 | 9299 | else |
423cee85 | 9300 | typesv = &PL_sv_undef; |
4e553d73 | 9301 | |
e788e7d3 | 9302 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
9303 | ENTER ; |
9304 | SAVETMPS; | |
4e553d73 | 9305 | |
423cee85 | 9306 | PUSHMARK(SP) ; |
a5845cb7 | 9307 | EXTEND(sp, 3); |
423cee85 JH |
9308 | if (pv) |
9309 | PUSHs(pv); | |
b3ac6de7 | 9310 | PUSHs(sv); |
423cee85 JH |
9311 | if (pv) |
9312 | PUSHs(typesv); | |
b3ac6de7 | 9313 | PUTBACK; |
423cee85 | 9314 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 9315 | |
423cee85 | 9316 | SPAGAIN ; |
4e553d73 | 9317 | |
423cee85 | 9318 | /* Check the eval first */ |
9b0e499b | 9319 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
396482e1 | 9320 | sv_catpvs(ERRSV, "Propagated"); |
8b6b16e7 | 9321 | yyerror(SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */ |
e1f15930 | 9322 | (void)POPs; |
423cee85 JH |
9323 | res = SvREFCNT_inc(sv); |
9324 | } | |
9325 | else { | |
9326 | res = POPs; | |
e1f15930 | 9327 | (void)SvREFCNT_inc(res); |
423cee85 | 9328 | } |
4e553d73 | 9329 | |
423cee85 JH |
9330 | PUTBACK ; |
9331 | FREETMPS ; | |
9332 | LEAVE ; | |
b3ac6de7 | 9333 | POPSTACK; |
4e553d73 | 9334 | |
b3ac6de7 | 9335 | if (!SvOK(res)) { |
423cee85 JH |
9336 | why1 = "Call to &{$^H{"; |
9337 | why2 = key; | |
f0af216f | 9338 | why3 = "}} did not return a defined value"; |
423cee85 JH |
9339 | sv = res; |
9340 | goto report; | |
9b0e499b | 9341 | } |
423cee85 | 9342 | |
9b0e499b | 9343 | return res; |
b3ac6de7 | 9344 | } |
4e553d73 | 9345 | |
d0a148a6 NC |
9346 | /* Returns a NUL terminated string, with the length of the string written to |
9347 | *slp | |
9348 | */ | |
76e3520e | 9349 | STATIC char * |
cea2e8a9 | 9350 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 | 9351 | { |
97aff369 | 9352 | dVAR; |
463ee0b2 | 9353 | register char *d = dest; |
890ce7af | 9354 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
463ee0b2 | 9355 | for (;;) { |
8903cb82 | 9356 | if (d >= e) |
cea2e8a9 | 9357 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 9358 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 9359 | *d++ = *s++; |
7e2040f0 | 9360 | else if (*s == '\'' && allow_package && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
9361 | *d++ = ':'; |
9362 | *d++ = ':'; | |
9363 | s++; | |
9364 | } | |
c3e0f903 | 9365 | else if (*s == ':' && s[1] == ':' && allow_package && s[2] != '$') { |
463ee0b2 LW |
9366 | *d++ = *s++; |
9367 | *d++ = *s++; | |
9368 | } | |
fd400ab9 | 9369 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 9370 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 9371 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
9372 | t += UTF8SKIP(t); |
9373 | if (d + (t - s) > e) | |
cea2e8a9 | 9374 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
9375 | Copy(s, d, t - s, char); |
9376 | d += t - s; | |
9377 | s = t; | |
9378 | } | |
463ee0b2 LW |
9379 | else { |
9380 | *d = '\0'; | |
9381 | *slp = d - dest; | |
9382 | return s; | |
e929a76b | 9383 | } |
378cc40b LW |
9384 | } |
9385 | } | |
9386 | ||
76e3520e | 9387 | STATIC char * |
f54cb97a | 9388 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b | 9389 | { |
97aff369 | 9390 | dVAR; |
6136c704 | 9391 | char *bracket = NULL; |
748a9306 | 9392 | char funny = *s++; |
6136c704 AL |
9393 | register char *d = dest; |
9394 | register char * const e = d + destlen + 3; /* two-character token, ending NUL */ | |
378cc40b | 9395 | |
a0d0e21e LW |
9396 | if (isSPACE(*s)) |
9397 | s = skipspace(s); | |
de3bb511 | 9398 | if (isDIGIT(*s)) { |
8903cb82 | 9399 | while (isDIGIT(*s)) { |
9400 | if (d >= e) | |
cea2e8a9 | 9401 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 9402 | *d++ = *s++; |
8903cb82 | 9403 | } |
378cc40b LW |
9404 | } |
9405 | else { | |
463ee0b2 | 9406 | for (;;) { |
8903cb82 | 9407 | if (d >= e) |
cea2e8a9 | 9408 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 9409 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 9410 | *d++ = *s++; |
7e2040f0 | 9411 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
9412 | *d++ = ':'; |
9413 | *d++ = ':'; | |
9414 | s++; | |
9415 | } | |
a0d0e21e | 9416 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
9417 | *d++ = *s++; |
9418 | *d++ = *s++; | |
9419 | } | |
fd400ab9 | 9420 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 9421 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 9422 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
9423 | t += UTF8SKIP(t); |
9424 | if (d + (t - s) > e) | |
cea2e8a9 | 9425 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
9426 | Copy(s, d, t - s, char); |
9427 | d += t - s; | |
9428 | s = t; | |
9429 | } | |
463ee0b2 LW |
9430 | else |
9431 | break; | |
9432 | } | |
378cc40b LW |
9433 | } |
9434 | *d = '\0'; | |
9435 | d = dest; | |
79072805 | 9436 | if (*d) { |
3280af22 NIS |
9437 | if (PL_lex_state != LEX_NORMAL) |
9438 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 9439 | return s; |
378cc40b | 9440 | } |
748a9306 | 9441 | if (*s == '$' && s[1] && |
3792a11b | 9442 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 9443 | { |
4810e5ec | 9444 | return s; |
5cd24f17 | 9445 | } |
79072805 LW |
9446 | if (*s == '{') { |
9447 | bracket = s; | |
9448 | s++; | |
9449 | } | |
9450 | else if (ck_uni) | |
9451 | check_uni(); | |
93a17b20 | 9452 | if (s < send) |
79072805 LW |
9453 | *d = *s++; |
9454 | d[1] = '\0'; | |
2b92dfce | 9455 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 9456 | *d = toCTRL(*s); |
9457 | s++; | |
de3bb511 | 9458 | } |
79072805 | 9459 | if (bracket) { |
748a9306 | 9460 | if (isSPACE(s[-1])) { |
fa83b5b6 | 9461 | while (s < send) { |
f54cb97a | 9462 | const char ch = *s++; |
bf4acbe4 | 9463 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 9464 | *d = ch; |
9465 | break; | |
9466 | } | |
9467 | } | |
748a9306 | 9468 | } |
7e2040f0 | 9469 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 9470 | d++; |
a0ed51b3 | 9471 | if (UTF) { |
6136c704 AL |
9472 | char *end = s; |
9473 | while ((end < send && isALNUM_lazy_if(end,UTF)) || *end == ':') { | |
9474 | end += UTF8SKIP(end); | |
9475 | while (end < send && UTF8_IS_CONTINUED(*end) && is_utf8_mark((U8*)end)) | |
9476 | end += UTF8SKIP(end); | |
a0ed51b3 | 9477 | } |
6136c704 AL |
9478 | Copy(s, d, end - s, char); |
9479 | d += end - s; | |
9480 | s = end; | |
a0ed51b3 LW |
9481 | } |
9482 | else { | |
2b92dfce | 9483 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 9484 | *d++ = *s++; |
2b92dfce | 9485 | if (d >= e) |
cea2e8a9 | 9486 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 9487 | } |
79072805 | 9488 | *d = '\0'; |
bf4acbe4 | 9489 | while (s < send && SPACE_OR_TAB(*s)) s++; |
ff68c719 | 9490 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
599cee73 | 9491 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest)) { |
dff6d3cd | 9492 | const char *brack = *s == '[' ? "[...]" : "{...}"; |
9014280d | 9493 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 9494 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
9495 | funny, dest, brack, funny, dest, brack); |
9496 | } | |
79072805 | 9497 | bracket++; |
a0be28da | 9498 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
9499 | return s; |
9500 | } | |
4e553d73 NIS |
9501 | } |
9502 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
9503 | * 1999-02-27 mjd-perl-patch@plover.com */ |
9504 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
9505 | && isALNUM(*s)) | |
9506 | { | |
9507 | d++; | |
9508 | while (isALNUM(*s) && d < e) { | |
9509 | *d++ = *s++; | |
9510 | } | |
9511 | if (d >= e) | |
cea2e8a9 | 9512 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 9513 | *d = '\0'; |
79072805 LW |
9514 | } |
9515 | if (*s == '}') { | |
9516 | s++; | |
7df0d042 | 9517 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 9518 | PL_lex_state = LEX_INTERPEND; |
7df0d042 AE |
9519 | PL_expect = XREF; |
9520 | } | |
748a9306 LW |
9521 | if (funny == '#') |
9522 | funny = '@'; | |
d008e5eb | 9523 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 9524 | if (ckWARN(WARN_AMBIGUOUS) && |
864dbfa3 | 9525 | (keyword(dest, d - dest) || get_cv(dest, FALSE))) |
d008e5eb | 9526 | { |
9014280d | 9527 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
9528 | "Ambiguous use of %c{%s} resolved to %c%s", |
9529 | funny, dest, funny, dest); | |
9530 | } | |
9531 | } | |
79072805 LW |
9532 | } |
9533 | else { | |
9534 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 9535 | *dest = '\0'; |
79072805 LW |
9536 | } |
9537 | } | |
3280af22 NIS |
9538 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
9539 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
9540 | return s; |
9541 | } | |
9542 | ||
cea2e8a9 | 9543 | void |
2b36a5a0 | 9544 | Perl_pmflag(pTHX_ U32* pmfl, int ch) |
a0d0e21e | 9545 | { |
bbce6d69 | 9546 | if (ch == 'i') |
a0d0e21e | 9547 | *pmfl |= PMf_FOLD; |
a0d0e21e LW |
9548 | else if (ch == 'g') |
9549 | *pmfl |= PMf_GLOBAL; | |
c90c0ff4 | 9550 | else if (ch == 'c') |
9551 | *pmfl |= PMf_CONTINUE; | |
a0d0e21e LW |
9552 | else if (ch == 'o') |
9553 | *pmfl |= PMf_KEEP; | |
9554 | else if (ch == 'm') | |
9555 | *pmfl |= PMf_MULTILINE; | |
9556 | else if (ch == 's') | |
9557 | *pmfl |= PMf_SINGLELINE; | |
9558 | else if (ch == 'x') | |
9559 | *pmfl |= PMf_EXTENDED; | |
9560 | } | |
378cc40b | 9561 | |
76e3520e | 9562 | STATIC char * |
cea2e8a9 | 9563 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 9564 | { |
97aff369 | 9565 | dVAR; |
79072805 | 9566 | PMOP *pm; |
f54cb97a | 9567 | char *s = scan_str(start,FALSE,FALSE); |
6136c704 | 9568 | const char * const valid_flags = (type == OP_QR) ? "iomsx" : "iogcmsx"; |
378cc40b | 9569 | |
25c09cbf | 9570 | if (!s) { |
6136c704 | 9571 | const char * const delimiter = skipspace(start); |
25c09cbf SF |
9572 | Perl_croak(aTHX_ *delimiter == '?' |
9573 | ? "Search pattern not terminated or ternary operator parsed as search pattern" | |
9574 | : "Search pattern not terminated" ); | |
9575 | } | |
bbce6d69 | 9576 | |
8782bef2 | 9577 | pm = (PMOP*)newPMOP(type, 0); |
3280af22 | 9578 | if (PL_multi_open == '?') |
79072805 | 9579 | pm->op_pmflags |= PMf_ONCE; |
6136c704 AL |
9580 | while (*s && strchr(valid_flags, *s)) |
9581 | pmflag(&pm->op_pmflags,*s++); | |
4ac733c9 | 9582 | /* issue a warning if /c is specified,but /g is not */ |
041457d9 DM |
9583 | if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL) |
9584 | && ckWARN(WARN_REGEXP)) | |
4ac733c9 | 9585 | { |
0bd48802 | 9586 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless without /g" ); |
4ac733c9 MJD |
9587 | } |
9588 | ||
4633a7c4 | 9589 | pm->op_pmpermflags = pm->op_pmflags; |
bbce6d69 | 9590 | |
3280af22 | 9591 | PL_lex_op = (OP*)pm; |
79072805 | 9592 | yylval.ival = OP_MATCH; |
378cc40b LW |
9593 | return s; |
9594 | } | |
9595 | ||
76e3520e | 9596 | STATIC char * |
cea2e8a9 | 9597 | S_scan_subst(pTHX_ char *start) |
79072805 | 9598 | { |
27da23d5 | 9599 | dVAR; |
a0d0e21e | 9600 | register char *s; |
79072805 | 9601 | register PMOP *pm; |
4fdae800 | 9602 | I32 first_start; |
79072805 LW |
9603 | I32 es = 0; |
9604 | ||
79072805 LW |
9605 | yylval.ival = OP_NULL; |
9606 | ||
09bef843 | 9607 | s = scan_str(start,FALSE,FALSE); |
79072805 | 9608 | |
37fd879b | 9609 | if (!s) |
cea2e8a9 | 9610 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 9611 | |
3280af22 | 9612 | if (s[-1] == PL_multi_open) |
79072805 LW |
9613 | s--; |
9614 | ||
3280af22 | 9615 | first_start = PL_multi_start; |
09bef843 | 9616 | s = scan_str(s,FALSE,FALSE); |
79072805 | 9617 | if (!s) { |
37fd879b | 9618 | if (PL_lex_stuff) { |
3280af22 | 9619 | SvREFCNT_dec(PL_lex_stuff); |
37fd879b HS |
9620 | PL_lex_stuff = Nullsv; |
9621 | } | |
cea2e8a9 | 9622 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 9623 | } |
3280af22 | 9624 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 9625 | |
79072805 | 9626 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
48c036b1 | 9627 | while (*s) { |
a687059c LW |
9628 | if (*s == 'e') { |
9629 | s++; | |
2f3197b3 | 9630 | es++; |
a687059c | 9631 | } |
b3eb6a9b | 9632 | else if (strchr("iogcmsx", *s)) |
a0d0e21e | 9633 | pmflag(&pm->op_pmflags,*s++); |
48c036b1 GS |
9634 | else |
9635 | break; | |
378cc40b | 9636 | } |
79072805 | 9637 | |
0bd48802 AL |
9638 | if ((pm->op_pmflags & PMf_CONTINUE) && ckWARN(WARN_REGEXP)) { |
9639 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" ); | |
4ac733c9 MJD |
9640 | } |
9641 | ||
79072805 | 9642 | if (es) { |
6136c704 AL |
9643 | SV * const repl = newSVpvs(""); |
9644 | ||
0244c3a4 GS |
9645 | PL_sublex_info.super_bufptr = s; |
9646 | PL_sublex_info.super_bufend = PL_bufend; | |
9647 | PL_multi_end = 0; | |
79072805 | 9648 | pm->op_pmflags |= PMf_EVAL; |
463ee0b2 | 9649 | while (es-- > 0) |
a0d0e21e | 9650 | sv_catpv(repl, es ? "eval " : "do "); |
396482e1 | 9651 | sv_catpvs(repl, "{ "); |
3280af22 | 9652 | sv_catsv(repl, PL_lex_repl); |
396482e1 | 9653 | sv_catpvs(repl, " }"); |
25da4f38 | 9654 | SvEVALED_on(repl); |
3280af22 NIS |
9655 | SvREFCNT_dec(PL_lex_repl); |
9656 | PL_lex_repl = repl; | |
378cc40b | 9657 | } |
79072805 | 9658 | |
4633a7c4 | 9659 | pm->op_pmpermflags = pm->op_pmflags; |
3280af22 | 9660 | PL_lex_op = (OP*)pm; |
79072805 | 9661 | yylval.ival = OP_SUBST; |
378cc40b LW |
9662 | return s; |
9663 | } | |
9664 | ||
76e3520e | 9665 | STATIC char * |
cea2e8a9 | 9666 | S_scan_trans(pTHX_ char *start) |
378cc40b | 9667 | { |
97aff369 | 9668 | dVAR; |
a0d0e21e | 9669 | register char* s; |
11343788 | 9670 | OP *o; |
79072805 LW |
9671 | short *tbl; |
9672 | I32 squash; | |
a0ed51b3 | 9673 | I32 del; |
79072805 LW |
9674 | I32 complement; |
9675 | ||
9676 | yylval.ival = OP_NULL; | |
9677 | ||
09bef843 | 9678 | s = scan_str(start,FALSE,FALSE); |
37fd879b | 9679 | if (!s) |
cea2e8a9 | 9680 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
3280af22 | 9681 | if (s[-1] == PL_multi_open) |
2f3197b3 LW |
9682 | s--; |
9683 | ||
09bef843 | 9684 | s = scan_str(s,FALSE,FALSE); |
79072805 | 9685 | if (!s) { |
37fd879b | 9686 | if (PL_lex_stuff) { |
3280af22 | 9687 | SvREFCNT_dec(PL_lex_stuff); |
37fd879b HS |
9688 | PL_lex_stuff = Nullsv; |
9689 | } | |
cea2e8a9 | 9690 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 9691 | } |
79072805 | 9692 | |
a0ed51b3 | 9693 | complement = del = squash = 0; |
7a1e2023 NC |
9694 | while (1) { |
9695 | switch (*s) { | |
9696 | case 'c': | |
79072805 | 9697 | complement = OPpTRANS_COMPLEMENT; |
7a1e2023 NC |
9698 | break; |
9699 | case 'd': | |
a0ed51b3 | 9700 | del = OPpTRANS_DELETE; |
7a1e2023 NC |
9701 | break; |
9702 | case 's': | |
79072805 | 9703 | squash = OPpTRANS_SQUASH; |
7a1e2023 NC |
9704 | break; |
9705 | default: | |
9706 | goto no_more; | |
9707 | } | |
395c3793 LW |
9708 | s++; |
9709 | } | |
7a1e2023 | 9710 | no_more: |
8973db79 | 9711 | |
a02a5408 | 9712 | Newx(tbl, complement&&!del?258:256, short); |
8973db79 | 9713 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
59f00321 RGS |
9714 | o->op_private &= ~OPpTRANS_ALL; |
9715 | o->op_private |= del|squash|complement| | |
7948272d NIS |
9716 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| |
9717 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 9718 | |
3280af22 | 9719 | PL_lex_op = o; |
79072805 LW |
9720 | yylval.ival = OP_TRANS; |
9721 | return s; | |
9722 | } | |
9723 | ||
76e3520e | 9724 | STATIC char * |
cea2e8a9 | 9725 | S_scan_heredoc(pTHX_ register char *s) |
79072805 | 9726 | { |
97aff369 | 9727 | dVAR; |
79072805 LW |
9728 | SV *herewas; |
9729 | I32 op_type = OP_SCALAR; | |
9730 | I32 len; | |
9731 | SV *tmpstr; | |
9732 | char term; | |
73d840c0 | 9733 | const char *found_newline; |
79072805 | 9734 | register char *d; |
fc36a67e | 9735 | register char *e; |
4633a7c4 | 9736 | char *peek; |
f54cb97a | 9737 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
79072805 LW |
9738 | |
9739 | s += 2; | |
3280af22 NIS |
9740 | d = PL_tokenbuf; |
9741 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 9742 | if (!outer) |
79072805 | 9743 | *d++ = '\n'; |
bf4acbe4 | 9744 | for (peek = s; SPACE_OR_TAB(*peek); peek++) ; |
3792a11b | 9745 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 9746 | s = peek; |
79072805 | 9747 | term = *s++; |
3280af22 | 9748 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 9749 | d += len; |
3280af22 | 9750 | if (s < PL_bufend) |
79072805 | 9751 | s++; |
79072805 LW |
9752 | } |
9753 | else { | |
9754 | if (*s == '\\') | |
9755 | s++, term = '\''; | |
9756 | else | |
9757 | term = '"'; | |
7e2040f0 | 9758 | if (!isALNUM_lazy_if(s,UTF)) |
12bcd1a6 | 9759 | deprecate_old("bare << to mean <<\"\""); |
7e2040f0 | 9760 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 9761 | if (d < e) |
9762 | *d++ = *s; | |
9763 | } | |
9764 | } | |
3280af22 | 9765 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 9766 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
9767 | *d++ = '\n'; |
9768 | *d = '\0'; | |
3280af22 | 9769 | len = d - PL_tokenbuf; |
6a27c188 | 9770 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
9771 | d = strchr(s, '\r'); |
9772 | if (d) { | |
b464bac0 | 9773 | char * const olds = s; |
f63a84b2 | 9774 | s = d; |
3280af22 | 9775 | while (s < PL_bufend) { |
f63a84b2 LW |
9776 | if (*s == '\r') { |
9777 | *d++ = '\n'; | |
9778 | if (*++s == '\n') | |
9779 | s++; | |
9780 | } | |
9781 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
9782 | *d++ = *s++; | |
9783 | s++; | |
9784 | } | |
9785 | else | |
9786 | *d++ = *s++; | |
9787 | } | |
9788 | *d = '\0'; | |
3280af22 | 9789 | PL_bufend = d; |
95a20fc0 | 9790 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
9791 | s = olds; |
9792 | } | |
9793 | #endif | |
e81b0615 | 9794 | if ( outer || !(found_newline = memchr(s, '\n', PL_bufend - s)) ) { |
73d840c0 AL |
9795 | herewas = newSVpvn(s,PL_bufend-s); |
9796 | } | |
9797 | else { | |
9798 | s--; | |
9799 | herewas = newSVpvn(s,found_newline-s); | |
9800 | } | |
79072805 | 9801 | s += SvCUR(herewas); |
748a9306 | 9802 | |
8d6dde3e | 9803 | tmpstr = NEWSV(87,79); |
748a9306 LW |
9804 | sv_upgrade(tmpstr, SVt_PVIV); |
9805 | if (term == '\'') { | |
79072805 | 9806 | op_type = OP_CONST; |
45977657 | 9807 | SvIV_set(tmpstr, -1); |
748a9306 LW |
9808 | } |
9809 | else if (term == '`') { | |
79072805 | 9810 | op_type = OP_BACKTICK; |
45977657 | 9811 | SvIV_set(tmpstr, '\\'); |
748a9306 | 9812 | } |
79072805 LW |
9813 | |
9814 | CLINE; | |
57843af0 | 9815 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
9816 | PL_multi_open = PL_multi_close = '<'; |
9817 | term = *PL_tokenbuf; | |
0244c3a4 | 9818 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
6136c704 AL |
9819 | char * const bufptr = PL_sublex_info.super_bufptr; |
9820 | char * const bufend = PL_sublex_info.super_bufend; | |
b464bac0 | 9821 | char * const olds = s - SvCUR(herewas); |
0244c3a4 GS |
9822 | s = strchr(bufptr, '\n'); |
9823 | if (!s) | |
9824 | s = bufend; | |
9825 | d = s; | |
9826 | while (s < bufend && | |
9827 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
9828 | if (*s++ == '\n') | |
57843af0 | 9829 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
9830 | } |
9831 | if (s >= bufend) { | |
eb160463 | 9832 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
9833 | missingterm(PL_tokenbuf); |
9834 | } | |
9835 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
9836 | sv_setpvn(tmpstr,d+1,s-d); | |
9837 | s += len - 1; | |
9838 | sv_catpvn(herewas,s,bufend-s); | |
95a20fc0 | 9839 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
9840 | |
9841 | s = olds; | |
9842 | goto retval; | |
9843 | } | |
9844 | else if (!outer) { | |
79072805 | 9845 | d = s; |
3280af22 NIS |
9846 | while (s < PL_bufend && |
9847 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 9848 | if (*s++ == '\n') |
57843af0 | 9849 | CopLINE_inc(PL_curcop); |
79072805 | 9850 | } |
3280af22 | 9851 | if (s >= PL_bufend) { |
eb160463 | 9852 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 9853 | missingterm(PL_tokenbuf); |
79072805 LW |
9854 | } |
9855 | sv_setpvn(tmpstr,d+1,s-d); | |
9856 | s += len - 1; | |
57843af0 | 9857 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 9858 | |
3280af22 NIS |
9859 | sv_catpvn(herewas,s,PL_bufend-s); |
9860 | sv_setsv(PL_linestr,herewas); | |
9861 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
9862 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 9863 | PL_last_lop = PL_last_uni = Nullch; |
79072805 LW |
9864 | } |
9865 | else | |
9866 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
3280af22 | 9867 | while (s >= PL_bufend) { /* multiple line string? */ |
fd2d0953 | 9868 | if (!outer || |
3280af22 | 9869 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { |
eb160463 | 9870 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 9871 | missingterm(PL_tokenbuf); |
79072805 | 9872 | } |
57843af0 | 9873 | CopLINE_inc(PL_curcop); |
3280af22 | 9874 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
207e3d1a | 9875 | PL_last_lop = PL_last_uni = Nullch; |
6a27c188 | 9876 | #ifndef PERL_STRICT_CR |
3280af22 | 9877 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
9878 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
9879 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 9880 | { |
3280af22 NIS |
9881 | PL_bufend[-2] = '\n'; |
9882 | PL_bufend--; | |
95a20fc0 | 9883 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 9884 | } |
3280af22 NIS |
9885 | else if (PL_bufend[-1] == '\r') |
9886 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 9887 | } |
3280af22 NIS |
9888 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
9889 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 9890 | #endif |
3280af22 | 9891 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
6136c704 | 9892 | SV * const sv = NEWSV(88,0); |
79072805 | 9893 | |
93a17b20 | 9894 | sv_upgrade(sv, SVt_PVMG); |
3280af22 | 9895 | sv_setsv(sv,PL_linestr); |
0ac0412a | 9896 | (void)SvIOK_on(sv); |
45977657 | 9897 | SvIV_set(sv, 0); |
36c7798d | 9898 | av_store(CopFILEAVx(PL_curcop), (I32)CopLINE(PL_curcop),sv); |
79072805 | 9899 | } |
3280af22 | 9900 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
95a20fc0 | 9901 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
1de9afcd | 9902 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
9903 | sv_catsv(PL_linestr,herewas); |
9904 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
1de9afcd | 9905 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
9906 | } |
9907 | else { | |
3280af22 NIS |
9908 | s = PL_bufend; |
9909 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
9910 | } |
9911 | } | |
79072805 | 9912 | s++; |
0244c3a4 | 9913 | retval: |
57843af0 | 9914 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 9915 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
1da4ca5f | 9916 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 9917 | } |
8990e307 | 9918 | SvREFCNT_dec(herewas); |
2f31ce75 | 9919 | if (!IN_BYTES) { |
95a20fc0 | 9920 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
2f31ce75 JH |
9921 | SvUTF8_on(tmpstr); |
9922 | else if (PL_encoding) | |
9923 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
9924 | } | |
3280af22 | 9925 | PL_lex_stuff = tmpstr; |
79072805 LW |
9926 | yylval.ival = op_type; |
9927 | return s; | |
9928 | } | |
9929 | ||
02aa26ce NT |
9930 | /* scan_inputsymbol |
9931 | takes: current position in input buffer | |
9932 | returns: new position in input buffer | |
9933 | side-effects: yylval and lex_op are set. | |
9934 | ||
9935 | This code handles: | |
9936 | ||
9937 | <> read from ARGV | |
9938 | <FH> read from filehandle | |
9939 | <pkg::FH> read from package qualified filehandle | |
9940 | <pkg'FH> read from package qualified filehandle | |
9941 | <$fh> read from filehandle in $fh | |
9942 | <*.h> filename glob | |
9943 | ||
9944 | */ | |
9945 | ||
76e3520e | 9946 | STATIC char * |
cea2e8a9 | 9947 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 9948 | { |
97aff369 | 9949 | dVAR; |
02aa26ce | 9950 | register char *s = start; /* current position in buffer */ |
1b420867 | 9951 | char *end; |
79072805 LW |
9952 | I32 len; |
9953 | ||
6136c704 AL |
9954 | char *d = PL_tokenbuf; /* start of temp holding space */ |
9955 | const char * const e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
9956 | ||
1b420867 GS |
9957 | end = strchr(s, '\n'); |
9958 | if (!end) | |
9959 | end = PL_bufend; | |
9960 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
9961 | |
9962 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 9963 | or if it didn't end, or if we see a newline |
02aa26ce NT |
9964 | */ |
9965 | ||
3280af22 | 9966 | if (len >= sizeof PL_tokenbuf) |
cea2e8a9 | 9967 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 9968 | if (s >= end) |
cea2e8a9 | 9969 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 9970 | |
fc36a67e | 9971 | s++; |
02aa26ce NT |
9972 | |
9973 | /* check for <$fh> | |
9974 | Remember, only scalar variables are interpreted as filehandles by | |
9975 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
9976 | treated as a glob() call. | |
9977 | This code makes use of the fact that except for the $ at the front, | |
9978 | a scalar variable and a filehandle look the same. | |
9979 | */ | |
4633a7c4 | 9980 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
9981 | |
9982 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 9983 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 9984 | d++; |
02aa26ce NT |
9985 | |
9986 | /* If we've tried to read what we allow filehandles to look like, and | |
9987 | there's still text left, then it must be a glob() and not a getline. | |
9988 | Use scan_str to pull out the stuff between the <> and treat it | |
9989 | as nothing more than a string. | |
9990 | */ | |
9991 | ||
3280af22 | 9992 | if (d - PL_tokenbuf != len) { |
79072805 LW |
9993 | yylval.ival = OP_GLOB; |
9994 | set_csh(); | |
09bef843 | 9995 | s = scan_str(start,FALSE,FALSE); |
79072805 | 9996 | if (!s) |
cea2e8a9 | 9997 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
9998 | return s; |
9999 | } | |
395c3793 | 10000 | else { |
9b3023bc | 10001 | bool readline_overriden = FALSE; |
6136c704 | 10002 | GV *gv_readline; |
9b3023bc | 10003 | GV **gvp; |
02aa26ce | 10004 | /* we're in a filehandle read situation */ |
3280af22 | 10005 | d = PL_tokenbuf; |
02aa26ce NT |
10006 | |
10007 | /* turn <> into <ARGV> */ | |
79072805 | 10008 | if (!len) |
689badd5 | 10009 | Copy("ARGV",d,5,char); |
02aa26ce | 10010 | |
9b3023bc | 10011 | /* Check whether readline() is overriden */ |
6136c704 AL |
10012 | gv_readline = gv_fetchpv("readline", 0, SVt_PVCV); |
10013 | if ((gv_readline | |
ba979b31 | 10014 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) |
9b3023bc | 10015 | || |
017a3ce5 | 10016 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE)) |
9b3023bc | 10017 | && (gv_readline = *gvp) != (GV*)&PL_sv_undef |
ba979b31 | 10018 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
10019 | readline_overriden = TRUE; |
10020 | ||
02aa26ce NT |
10021 | /* if <$fh>, create the ops to turn the variable into a |
10022 | filehandle | |
10023 | */ | |
79072805 | 10024 | if (*d == '$') { |
a0d0e21e | 10025 | I32 tmp; |
02aa26ce NT |
10026 | |
10027 | /* try to find it in the pad for this block, otherwise find | |
10028 | add symbol table ops | |
10029 | */ | |
11343788 | 10030 | if ((tmp = pad_findmy(d)) != NOT_IN_PAD) { |
dd2155a4 | 10031 | if (PAD_COMPNAME_FLAGS(tmp) & SVpad_OUR) { |
6136c704 AL |
10032 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
10033 | HEK * const stashname = HvNAME_HEK(stash); | |
10034 | SV * const sym = sv_2mortal(newSVhek(stashname)); | |
396482e1 | 10035 | sv_catpvs(sym, "::"); |
f558d5af JH |
10036 | sv_catpv(sym, d+1); |
10037 | d = SvPVX(sym); | |
10038 | goto intro_sym; | |
10039 | } | |
10040 | else { | |
6136c704 | 10041 | OP * const o = newOP(OP_PADSV, 0); |
f558d5af | 10042 | o->op_targ = tmp; |
9b3023bc RGS |
10043 | PL_lex_op = readline_overriden |
10044 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
10045 | append_elem(OP_LIST, o, | |
10046 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
10047 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 10048 | } |
a0d0e21e LW |
10049 | } |
10050 | else { | |
f558d5af JH |
10051 | GV *gv; |
10052 | ++d; | |
10053 | intro_sym: | |
10054 | gv = gv_fetchpv(d, | |
10055 | (PL_in_eval | |
10056 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 10057 | : GV_ADDMULTI), |
f558d5af | 10058 | SVt_PV); |
9b3023bc RGS |
10059 | PL_lex_op = readline_overriden |
10060 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
10061 | append_elem(OP_LIST, | |
10062 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
10063 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
10064 | : (OP*)newUNOP(OP_READLINE, 0, | |
10065 | newUNOP(OP_RV2SV, 0, | |
10066 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 10067 | } |
7c6fadd6 RGS |
10068 | if (!readline_overriden) |
10069 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
f5284f61 | 10070 | /* we created the ops in PL_lex_op, so make yylval.ival a null op */ |
79072805 LW |
10071 | yylval.ival = OP_NULL; |
10072 | } | |
02aa26ce NT |
10073 | |
10074 | /* If it's none of the above, it must be a literal filehandle | |
10075 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 10076 | else { |
6136c704 | 10077 | GV * const gv = gv_fetchpv(d, GV_ADD, SVt_PVIO); |
9b3023bc RGS |
10078 | PL_lex_op = readline_overriden |
10079 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
10080 | append_elem(OP_LIST, | |
10081 | newGVOP(OP_GV, 0, gv), | |
10082 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
10083 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
79072805 LW |
10084 | yylval.ival = OP_NULL; |
10085 | } | |
10086 | } | |
02aa26ce | 10087 | |
79072805 LW |
10088 | return s; |
10089 | } | |
10090 | ||
02aa26ce NT |
10091 | |
10092 | /* scan_str | |
10093 | takes: start position in buffer | |
09bef843 SB |
10094 | keep_quoted preserve \ on the embedded delimiter(s) |
10095 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
10096 | returns: position to continue reading from buffer |
10097 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
10098 | updates the read buffer. | |
10099 | ||
10100 | This subroutine pulls a string out of the input. It is called for: | |
10101 | q single quotes q(literal text) | |
10102 | ' single quotes 'literal text' | |
10103 | qq double quotes qq(interpolate $here please) | |
10104 | " double quotes "interpolate $here please" | |
10105 | qx backticks qx(/bin/ls -l) | |
10106 | ` backticks `/bin/ls -l` | |
10107 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
10108 | m// regexp match m/this/ | |
10109 | s/// regexp substitute s/this/that/ | |
10110 | tr/// string transliterate tr/this/that/ | |
10111 | y/// string transliterate y/this/that/ | |
10112 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 10113 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
10114 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
10115 | ||
10116 | In most of these cases (all but <>, patterns and transliterate) | |
10117 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
10118 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
10119 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
10120 | calls scan_str(). | |
4e553d73 | 10121 | |
02aa26ce NT |
10122 | It skips whitespace before the string starts, and treats the first |
10123 | character as the delimiter. If the delimiter is one of ([{< then | |
10124 | the corresponding "close" character )]}> is used as the closing | |
10125 | delimiter. It allows quoting of delimiters, and if the string has | |
10126 | balanced delimiters ([{<>}]) it allows nesting. | |
10127 | ||
37fd879b HS |
10128 | On success, the SV with the resulting string is put into lex_stuff or, |
10129 | if that is already non-NULL, into lex_repl. The second case occurs only | |
10130 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
10131 | For convenience, the terminating delimiter character is stuffed into | |
10132 | SvIVX of the SV. | |
02aa26ce NT |
10133 | */ |
10134 | ||
76e3520e | 10135 | STATIC char * |
09bef843 | 10136 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 10137 | { |
97aff369 | 10138 | dVAR; |
02aa26ce NT |
10139 | SV *sv; /* scalar value: string */ |
10140 | char *tmps; /* temp string, used for delimiter matching */ | |
10141 | register char *s = start; /* current position in the buffer */ | |
10142 | register char term; /* terminating character */ | |
10143 | register char *to; /* current position in the sv's data */ | |
10144 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 10145 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
220e2d4e | 10146 | I32 termcode; /* terminating char. code */ |
89ebb4a3 | 10147 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
220e2d4e IH |
10148 | STRLEN termlen; /* length of terminating string */ |
10149 | char *last = NULL; /* last position for nesting bracket */ | |
02aa26ce NT |
10150 | |
10151 | /* skip space before the delimiter */ | |
fb73857a | 10152 | if (isSPACE(*s)) |
10153 | s = skipspace(s); | |
02aa26ce NT |
10154 | |
10155 | /* mark where we are, in case we need to report errors */ | |
79072805 | 10156 | CLINE; |
02aa26ce NT |
10157 | |
10158 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 10159 | term = *s; |
220e2d4e IH |
10160 | if (!UTF) { |
10161 | termcode = termstr[0] = term; | |
10162 | termlen = 1; | |
10163 | } | |
10164 | else { | |
f3b9ce0f | 10165 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
220e2d4e IH |
10166 | Copy(s, termstr, termlen, U8); |
10167 | if (!UTF8_IS_INVARIANT(term)) | |
10168 | has_utf8 = TRUE; | |
10169 | } | |
b1c7b182 | 10170 | |
02aa26ce | 10171 | /* mark where we are */ |
57843af0 | 10172 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 10173 | PL_multi_open = term; |
02aa26ce NT |
10174 | |
10175 | /* find corresponding closing delimiter */ | |
93a17b20 | 10176 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
220e2d4e IH |
10177 | termcode = termstr[0] = term = tmps[5]; |
10178 | ||
3280af22 | 10179 | PL_multi_close = term; |
79072805 | 10180 | |
02aa26ce | 10181 | /* create a new SV to hold the contents. 87 is leak category, I'm |
8d6dde3e IZ |
10182 | assuming. 79 is the SV's initial length. What a random number. */ |
10183 | sv = NEWSV(87,79); | |
ed6116ce | 10184 | sv_upgrade(sv, SVt_PVIV); |
45977657 | 10185 | SvIV_set(sv, termcode); |
a0d0e21e | 10186 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
10187 | |
10188 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 10189 | if (keep_delims) |
220e2d4e IH |
10190 | sv_catpvn(sv, s, termlen); |
10191 | s += termlen; | |
93a17b20 | 10192 | for (;;) { |
220e2d4e IH |
10193 | if (PL_encoding && !UTF) { |
10194 | bool cont = TRUE; | |
10195 | ||
10196 | while (cont) { | |
95a20fc0 | 10197 | int offset = s - SvPVX_const(PL_linestr); |
66a1b24b | 10198 | const bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f3b9ce0f | 10199 | &offset, (char*)termstr, termlen); |
6136c704 AL |
10200 | const char * const ns = SvPVX_const(PL_linestr) + offset; |
10201 | char * const svlast = SvEND(sv) - 1; | |
220e2d4e IH |
10202 | |
10203 | for (; s < ns; s++) { | |
10204 | if (*s == '\n' && !PL_rsfp) | |
10205 | CopLINE_inc(PL_curcop); | |
10206 | } | |
10207 | if (!found) | |
10208 | goto read_more_line; | |
10209 | else { | |
10210 | /* handle quoted delimiters */ | |
52327caf | 10211 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
f54cb97a | 10212 | const char *t; |
95a20fc0 | 10213 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
220e2d4e IH |
10214 | t--; |
10215 | if ((svlast-1 - t) % 2) { | |
10216 | if (!keep_quoted) { | |
10217 | *(svlast-1) = term; | |
10218 | *svlast = '\0'; | |
10219 | SvCUR_set(sv, SvCUR(sv) - 1); | |
10220 | } | |
10221 | continue; | |
10222 | } | |
10223 | } | |
10224 | if (PL_multi_open == PL_multi_close) { | |
10225 | cont = FALSE; | |
10226 | } | |
10227 | else { | |
f54cb97a AL |
10228 | const char *t; |
10229 | char *w; | |
220e2d4e IH |
10230 | if (!last) |
10231 | last = SvPVX(sv); | |
f54cb97a | 10232 | for (t = w = last; t < svlast; w++, t++) { |
220e2d4e IH |
10233 | /* At here, all closes are "was quoted" one, |
10234 | so we don't check PL_multi_close. */ | |
10235 | if (*t == '\\') { | |
10236 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
10237 | t++; | |
10238 | else | |
10239 | *w++ = *t++; | |
10240 | } | |
10241 | else if (*t == PL_multi_open) | |
10242 | brackets++; | |
10243 | ||
10244 | *w = *t; | |
10245 | } | |
10246 | if (w < t) { | |
10247 | *w++ = term; | |
10248 | *w = '\0'; | |
95a20fc0 | 10249 | SvCUR_set(sv, w - SvPVX_const(sv)); |
220e2d4e IH |
10250 | } |
10251 | last = w; | |
10252 | if (--brackets <= 0) | |
10253 | cont = FALSE; | |
10254 | } | |
10255 | } | |
10256 | } | |
10257 | if (!keep_delims) { | |
10258 | SvCUR_set(sv, SvCUR(sv) - 1); | |
10259 | *SvEND(sv) = '\0'; | |
10260 | } | |
10261 | break; | |
10262 | } | |
10263 | ||
02aa26ce | 10264 | /* extend sv if need be */ |
3280af22 | 10265 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 10266 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 10267 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 10268 | |
02aa26ce | 10269 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
10270 | if (PL_multi_open == PL_multi_close) { |
10271 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 10272 | /* embedded newlines increment the current line number */ |
3280af22 | 10273 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 10274 | CopLINE_inc(PL_curcop); |
02aa26ce | 10275 | /* handle quoted delimiters */ |
3280af22 | 10276 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 10277 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 10278 | s++; |
02aa26ce | 10279 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
10280 | else |
10281 | *to++ = *s++; | |
10282 | } | |
02aa26ce NT |
10283 | /* terminate when run out of buffer (the for() condition), or |
10284 | have found the terminator */ | |
220e2d4e IH |
10285 | else if (*s == term) { |
10286 | if (termlen == 1) | |
10287 | break; | |
f3b9ce0f | 10288 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
220e2d4e IH |
10289 | break; |
10290 | } | |
63cd0674 | 10291 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 10292 | has_utf8 = TRUE; |
93a17b20 LW |
10293 | *to = *s; |
10294 | } | |
10295 | } | |
02aa26ce NT |
10296 | |
10297 | /* if the terminator isn't the same as the start character (e.g., | |
10298 | matched brackets), we have to allow more in the quoting, and | |
10299 | be prepared for nested brackets. | |
10300 | */ | |
93a17b20 | 10301 | else { |
02aa26ce | 10302 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 10303 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 10304 | /* embedded newlines increment the line count */ |
3280af22 | 10305 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 10306 | CopLINE_inc(PL_curcop); |
02aa26ce | 10307 | /* backslashes can escape the open or closing characters */ |
3280af22 | 10308 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
10309 | if (!keep_quoted && |
10310 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
10311 | s++; |
10312 | else | |
10313 | *to++ = *s++; | |
10314 | } | |
02aa26ce | 10315 | /* allow nested opens and closes */ |
3280af22 | 10316 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 10317 | break; |
3280af22 | 10318 | else if (*s == PL_multi_open) |
93a17b20 | 10319 | brackets++; |
63cd0674 | 10320 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 10321 | has_utf8 = TRUE; |
93a17b20 LW |
10322 | *to = *s; |
10323 | } | |
10324 | } | |
02aa26ce | 10325 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 10326 | *to = '\0'; |
95a20fc0 | 10327 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 10328 | |
02aa26ce NT |
10329 | /* |
10330 | * this next chunk reads more into the buffer if we're not done yet | |
10331 | */ | |
10332 | ||
b1c7b182 GS |
10333 | if (s < PL_bufend) |
10334 | break; /* handle case where we are done yet :-) */ | |
79072805 | 10335 | |
6a27c188 | 10336 | #ifndef PERL_STRICT_CR |
95a20fc0 | 10337 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
10338 | if ((to[-2] == '\r' && to[-1] == '\n') || |
10339 | (to[-2] == '\n' && to[-1] == '\r')) | |
10340 | { | |
f63a84b2 LW |
10341 | to[-2] = '\n'; |
10342 | to--; | |
95a20fc0 | 10343 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
10344 | } |
10345 | else if (to[-1] == '\r') | |
10346 | to[-1] = '\n'; | |
10347 | } | |
95a20fc0 | 10348 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
10349 | to[-1] = '\n'; |
10350 | #endif | |
10351 | ||
220e2d4e | 10352 | read_more_line: |
02aa26ce NT |
10353 | /* if we're out of file, or a read fails, bail and reset the current |
10354 | line marker so we can report where the unterminated string began | |
10355 | */ | |
3280af22 NIS |
10356 | if (!PL_rsfp || |
10357 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { | |
c07a80fd | 10358 | sv_free(sv); |
eb160463 | 10359 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
79072805 LW |
10360 | return Nullch; |
10361 | } | |
02aa26ce | 10362 | /* we read a line, so increment our line counter */ |
57843af0 | 10363 | CopLINE_inc(PL_curcop); |
a0ed51b3 | 10364 | |
02aa26ce | 10365 | /* update debugger info */ |
3280af22 | 10366 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
7a5b473e | 10367 | SV * const sv = NEWSV(88,0); |
79072805 | 10368 | |
93a17b20 | 10369 | sv_upgrade(sv, SVt_PVMG); |
3280af22 | 10370 | sv_setsv(sv,PL_linestr); |
0ac0412a | 10371 | (void)SvIOK_on(sv); |
45977657 | 10372 | SvIV_set(sv, 0); |
36c7798d | 10373 | av_store(CopFILEAVx(PL_curcop), (I32)CopLINE(PL_curcop), sv); |
395c3793 | 10374 | } |
a0ed51b3 | 10375 | |
3280af22 NIS |
10376 | /* having changed the buffer, we must update PL_bufend */ |
10377 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 10378 | PL_last_lop = PL_last_uni = Nullch; |
378cc40b | 10379 | } |
4e553d73 | 10380 | |
02aa26ce NT |
10381 | /* at this point, we have successfully read the delimited string */ |
10382 | ||
220e2d4e IH |
10383 | if (!PL_encoding || UTF) { |
10384 | if (keep_delims) | |
10385 | sv_catpvn(sv, s, termlen); | |
10386 | s += termlen; | |
10387 | } | |
10388 | if (has_utf8 || PL_encoding) | |
b1c7b182 | 10389 | SvUTF8_on(sv); |
d0063567 | 10390 | |
57843af0 | 10391 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
10392 | |
10393 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
10394 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
10395 | SvLEN_set(sv, SvCUR(sv) + 1); | |
b7e9a5c2 | 10396 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 10397 | } |
02aa26ce NT |
10398 | |
10399 | /* decide whether this is the first or second quoted string we've read | |
10400 | for this op | |
10401 | */ | |
4e553d73 | 10402 | |
3280af22 NIS |
10403 | if (PL_lex_stuff) |
10404 | PL_lex_repl = sv; | |
79072805 | 10405 | else |
3280af22 | 10406 | PL_lex_stuff = sv; |
378cc40b LW |
10407 | return s; |
10408 | } | |
10409 | ||
02aa26ce NT |
10410 | /* |
10411 | scan_num | |
10412 | takes: pointer to position in buffer | |
10413 | returns: pointer to new position in buffer | |
10414 | side-effects: builds ops for the constant in yylval.op | |
10415 | ||
10416 | Read a number in any of the formats that Perl accepts: | |
10417 | ||
7fd134d9 JH |
10418 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
10419 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
10420 | 0b[01](_?[01])* |
10421 | 0[0-7](_?[0-7])* | |
10422 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 10423 | |
3280af22 | 10424 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
10425 | thing it reads. |
10426 | ||
10427 | If it reads a number without a decimal point or an exponent, it will | |
10428 | try converting the number to an integer and see if it can do so | |
10429 | without loss of precision. | |
10430 | */ | |
4e553d73 | 10431 | |
378cc40b | 10432 | char * |
bfed75c6 | 10433 | Perl_scan_num(pTHX_ const char *start, YYSTYPE* lvalp) |
378cc40b | 10434 | { |
97aff369 | 10435 | dVAR; |
bfed75c6 | 10436 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
10437 | register char *d; /* destination in temp buffer */ |
10438 | register char *e; /* end of temp buffer */ | |
86554af2 | 10439 | NV nv; /* number read, as a double */ |
a7cb1f99 | 10440 | SV *sv = Nullsv; /* place to put the converted number */ |
a86a20aa | 10441 | bool floatit; /* boolean: int or float? */ |
cbbf8932 | 10442 | const char *lastub = NULL; /* position of last underbar */ |
bfed75c6 | 10443 | static char const number_too_long[] = "Number too long"; |
378cc40b | 10444 | |
02aa26ce NT |
10445 | /* We use the first character to decide what type of number this is */ |
10446 | ||
378cc40b | 10447 | switch (*s) { |
79072805 | 10448 | default: |
cea2e8a9 | 10449 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 10450 | |
02aa26ce | 10451 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 10452 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
10453 | case '0': |
10454 | { | |
02aa26ce NT |
10455 | /* variables: |
10456 | u holds the "number so far" | |
4f19785b WSI |
10457 | shift the power of 2 of the base |
10458 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
10459 | overflowed was the number more than we can hold? |
10460 | ||
10461 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
10462 | we in octal/hex/binary?" indicator to disallow hex characters |
10463 | when in octal mode. | |
02aa26ce | 10464 | */ |
9e24b6e2 JH |
10465 | NV n = 0.0; |
10466 | UV u = 0; | |
79072805 | 10467 | I32 shift; |
9e24b6e2 | 10468 | bool overflowed = FALSE; |
61f33854 | 10469 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
27da23d5 JH |
10470 | static const NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
10471 | static const char* const bases[5] = | |
10472 | { "", "binary", "", "octal", "hexadecimal" }; | |
10473 | static const char* const Bases[5] = | |
10474 | { "", "Binary", "", "Octal", "Hexadecimal" }; | |
10475 | static const char* const maxima[5] = | |
10476 | { "", | |
10477 | "0b11111111111111111111111111111111", | |
10478 | "", | |
10479 | "037777777777", | |
10480 | "0xffffffff" }; | |
bfed75c6 | 10481 | const char *base, *Base, *max; |
378cc40b | 10482 | |
02aa26ce | 10483 | /* check for hex */ |
378cc40b LW |
10484 | if (s[1] == 'x') { |
10485 | shift = 4; | |
10486 | s += 2; | |
61f33854 | 10487 | just_zero = FALSE; |
4f19785b WSI |
10488 | } else if (s[1] == 'b') { |
10489 | shift = 1; | |
10490 | s += 2; | |
61f33854 | 10491 | just_zero = FALSE; |
378cc40b | 10492 | } |
02aa26ce | 10493 | /* check for a decimal in disguise */ |
b78218b7 | 10494 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 10495 | goto decimal; |
02aa26ce | 10496 | /* so it must be octal */ |
928753ea | 10497 | else { |
378cc40b | 10498 | shift = 3; |
928753ea JH |
10499 | s++; |
10500 | } | |
10501 | ||
10502 | if (*s == '_') { | |
10503 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10504 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10505 | "Misplaced _ in number"); |
10506 | lastub = s++; | |
10507 | } | |
9e24b6e2 JH |
10508 | |
10509 | base = bases[shift]; | |
10510 | Base = Bases[shift]; | |
10511 | max = maxima[shift]; | |
02aa26ce | 10512 | |
4f19785b | 10513 | /* read the rest of the number */ |
378cc40b | 10514 | for (;;) { |
9e24b6e2 | 10515 | /* x is used in the overflow test, |
893fe2c2 | 10516 | b is the digit we're adding on. */ |
9e24b6e2 | 10517 | UV x, b; |
55497cff | 10518 | |
378cc40b | 10519 | switch (*s) { |
02aa26ce NT |
10520 | |
10521 | /* if we don't mention it, we're done */ | |
378cc40b LW |
10522 | default: |
10523 | goto out; | |
02aa26ce | 10524 | |
928753ea | 10525 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 10526 | case '_': |
041457d9 | 10527 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 10528 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10529 | "Misplaced _ in number"); |
10530 | lastub = s++; | |
de3bb511 | 10531 | break; |
02aa26ce NT |
10532 | |
10533 | /* 8 and 9 are not octal */ | |
378cc40b | 10534 | case '8': case '9': |
4f19785b | 10535 | if (shift == 3) |
cea2e8a9 | 10536 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 10537 | /* FALL THROUGH */ |
02aa26ce NT |
10538 | |
10539 | /* octal digits */ | |
4f19785b | 10540 | case '2': case '3': case '4': |
378cc40b | 10541 | case '5': case '6': case '7': |
4f19785b | 10542 | if (shift == 1) |
cea2e8a9 | 10543 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
10544 | /* FALL THROUGH */ |
10545 | ||
10546 | case '0': case '1': | |
02aa26ce | 10547 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 10548 | goto digit; |
02aa26ce NT |
10549 | |
10550 | /* hex digits */ | |
378cc40b LW |
10551 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
10552 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 10553 | /* make sure they said 0x */ |
378cc40b LW |
10554 | if (shift != 4) |
10555 | goto out; | |
55497cff | 10556 | b = (*s++ & 7) + 9; |
02aa26ce NT |
10557 | |
10558 | /* Prepare to put the digit we have onto the end | |
10559 | of the number so far. We check for overflows. | |
10560 | */ | |
10561 | ||
55497cff | 10562 | digit: |
61f33854 | 10563 | just_zero = FALSE; |
9e24b6e2 JH |
10564 | if (!overflowed) { |
10565 | x = u << shift; /* make room for the digit */ | |
10566 | ||
10567 | if ((x >> shift) != u | |
10568 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
10569 | overflowed = TRUE; |
10570 | n = (NV) u; | |
767a6a26 | 10571 | if (ckWARN_d(WARN_OVERFLOW)) |
9014280d | 10572 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), |
9e24b6e2 JH |
10573 | "Integer overflow in %s number", |
10574 | base); | |
10575 | } else | |
10576 | u = x | b; /* add the digit to the end */ | |
10577 | } | |
10578 | if (overflowed) { | |
10579 | n *= nvshift[shift]; | |
10580 | /* If an NV has not enough bits in its | |
10581 | * mantissa to represent an UV this summing of | |
10582 | * small low-order numbers is a waste of time | |
10583 | * (because the NV cannot preserve the | |
10584 | * low-order bits anyway): we could just | |
10585 | * remember when did we overflow and in the | |
10586 | * end just multiply n by the right | |
10587 | * amount. */ | |
10588 | n += (NV) b; | |
55497cff | 10589 | } |
378cc40b LW |
10590 | break; |
10591 | } | |
10592 | } | |
02aa26ce NT |
10593 | |
10594 | /* if we get here, we had success: make a scalar value from | |
10595 | the number. | |
10596 | */ | |
378cc40b | 10597 | out: |
928753ea JH |
10598 | |
10599 | /* final misplaced underbar check */ | |
10600 | if (s[-1] == '_') { | |
10601 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10602 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
10603 | } |
10604 | ||
79072805 | 10605 | sv = NEWSV(92,0); |
9e24b6e2 | 10606 | if (overflowed) { |
041457d9 | 10607 | if (n > 4294967295.0 && ckWARN(WARN_PORTABLE)) |
9014280d | 10608 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
10609 | "%s number > %s non-portable", |
10610 | Base, max); | |
10611 | sv_setnv(sv, n); | |
10612 | } | |
10613 | else { | |
15041a67 | 10614 | #if UVSIZE > 4 |
041457d9 | 10615 | if (u > 0xffffffff && ckWARN(WARN_PORTABLE)) |
9014280d | 10616 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
10617 | "%s number > %s non-portable", |
10618 | Base, max); | |
2cc4c2dc | 10619 | #endif |
9e24b6e2 JH |
10620 | sv_setuv(sv, u); |
10621 | } | |
61f33854 | 10622 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
bfed75c6 | 10623 | sv = new_constant(start, s - start, "integer", |
61f33854 RGS |
10624 | sv, Nullsv, NULL); |
10625 | else if (PL_hints & HINT_NEW_BINARY) | |
b3ac6de7 | 10626 | sv = new_constant(start, s - start, "binary", sv, Nullsv, NULL); |
378cc40b LW |
10627 | } |
10628 | break; | |
02aa26ce NT |
10629 | |
10630 | /* | |
10631 | handle decimal numbers. | |
10632 | we're also sent here when we read a 0 as the first digit | |
10633 | */ | |
378cc40b LW |
10634 | case '1': case '2': case '3': case '4': case '5': |
10635 | case '6': case '7': case '8': case '9': case '.': | |
10636 | decimal: | |
3280af22 NIS |
10637 | d = PL_tokenbuf; |
10638 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 10639 | floatit = FALSE; |
02aa26ce NT |
10640 | |
10641 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 10642 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 10643 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
10644 | if -w is on |
10645 | */ | |
93a17b20 | 10646 | if (*s == '_') { |
041457d9 | 10647 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 10648 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10649 | "Misplaced _ in number"); |
10650 | lastub = s++; | |
93a17b20 | 10651 | } |
fc36a67e | 10652 | else { |
02aa26ce | 10653 | /* check for end of fixed-length buffer */ |
fc36a67e | 10654 | if (d >= e) |
cea2e8a9 | 10655 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 10656 | /* if we're ok, copy the character */ |
378cc40b | 10657 | *d++ = *s++; |
fc36a67e | 10658 | } |
378cc40b | 10659 | } |
02aa26ce NT |
10660 | |
10661 | /* final misplaced underbar check */ | |
928753ea | 10662 | if (lastub && s == lastub + 1) { |
d008e5eb | 10663 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 10664 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 10665 | } |
02aa26ce NT |
10666 | |
10667 | /* read a decimal portion if there is one. avoid | |
10668 | 3..5 being interpreted as the number 3. followed | |
10669 | by .5 | |
10670 | */ | |
2f3197b3 | 10671 | if (*s == '.' && s[1] != '.') { |
79072805 | 10672 | floatit = TRUE; |
378cc40b | 10673 | *d++ = *s++; |
02aa26ce | 10674 | |
928753ea JH |
10675 | if (*s == '_') { |
10676 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10677 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10678 | "Misplaced _ in number"); |
10679 | lastub = s; | |
10680 | } | |
10681 | ||
10682 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 10683 | */ |
fc36a67e | 10684 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 10685 | /* fixed length buffer check */ |
fc36a67e | 10686 | if (d >= e) |
cea2e8a9 | 10687 | Perl_croak(aTHX_ number_too_long); |
928753ea | 10688 | if (*s == '_') { |
041457d9 | 10689 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 10690 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10691 | "Misplaced _ in number"); |
10692 | lastub = s; | |
10693 | } | |
10694 | else | |
fc36a67e | 10695 | *d++ = *s; |
378cc40b | 10696 | } |
928753ea JH |
10697 | /* fractional part ending in underbar? */ |
10698 | if (s[-1] == '_') { | |
10699 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10700 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10701 | "Misplaced _ in number"); |
10702 | } | |
dd629d5b GS |
10703 | if (*s == '.' && isDIGIT(s[1])) { |
10704 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 10705 | s = start; |
dd629d5b GS |
10706 | goto vstring; |
10707 | } | |
378cc40b | 10708 | } |
02aa26ce NT |
10709 | |
10710 | /* read exponent part, if present */ | |
3792a11b | 10711 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
10712 | floatit = TRUE; |
10713 | s++; | |
02aa26ce NT |
10714 | |
10715 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 10716 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 10717 | |
7fd134d9 JH |
10718 | /* stray preinitial _ */ |
10719 | if (*s == '_') { | |
10720 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10721 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
10722 | "Misplaced _ in number"); |
10723 | lastub = s++; | |
10724 | } | |
10725 | ||
02aa26ce | 10726 | /* allow positive or negative exponent */ |
378cc40b LW |
10727 | if (*s == '+' || *s == '-') |
10728 | *d++ = *s++; | |
02aa26ce | 10729 | |
7fd134d9 JH |
10730 | /* stray initial _ */ |
10731 | if (*s == '_') { | |
10732 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10733 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
10734 | "Misplaced _ in number"); |
10735 | lastub = s++; | |
10736 | } | |
10737 | ||
7fd134d9 JH |
10738 | /* read digits of exponent */ |
10739 | while (isDIGIT(*s) || *s == '_') { | |
10740 | if (isDIGIT(*s)) { | |
10741 | if (d >= e) | |
10742 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 10743 | *d++ = *s++; |
7fd134d9 JH |
10744 | } |
10745 | else { | |
041457d9 DM |
10746 | if (((lastub && s == lastub + 1) || |
10747 | (!isDIGIT(s[1]) && s[1] != '_')) | |
10748 | && ckWARN(WARN_SYNTAX)) | |
9014280d | 10749 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 | 10750 | "Misplaced _ in number"); |
b3b48e3e | 10751 | lastub = s++; |
7fd134d9 | 10752 | } |
7fd134d9 | 10753 | } |
378cc40b | 10754 | } |
02aa26ce | 10755 | |
02aa26ce NT |
10756 | |
10757 | /* make an sv from the string */ | |
79072805 | 10758 | sv = NEWSV(92,0); |
097ee67d | 10759 | |
0b7fceb9 | 10760 | /* |
58bb9ec3 NC |
10761 | We try to do an integer conversion first if no characters |
10762 | indicating "float" have been found. | |
0b7fceb9 MU |
10763 | */ |
10764 | ||
10765 | if (!floatit) { | |
58bb9ec3 | 10766 | UV uv; |
6136c704 | 10767 | const int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); |
58bb9ec3 NC |
10768 | |
10769 | if (flags == IS_NUMBER_IN_UV) { | |
10770 | if (uv <= IV_MAX) | |
86554af2 | 10771 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 10772 | else |
c239479b | 10773 | sv_setuv(sv, uv); |
58bb9ec3 NC |
10774 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
10775 | if (uv <= (UV) IV_MIN) | |
10776 | sv_setiv(sv, -(IV)uv); | |
10777 | else | |
10778 | floatit = TRUE; | |
10779 | } else | |
10780 | floatit = TRUE; | |
10781 | } | |
0b7fceb9 | 10782 | if (floatit) { |
58bb9ec3 NC |
10783 | /* terminate the string */ |
10784 | *d = '\0'; | |
86554af2 JH |
10785 | nv = Atof(PL_tokenbuf); |
10786 | sv_setnv(sv, nv); | |
10787 | } | |
86554af2 | 10788 | |
b8403495 JH |
10789 | if ( floatit ? (PL_hints & HINT_NEW_FLOAT) : |
10790 | (PL_hints & HINT_NEW_INTEGER) ) | |
4e553d73 | 10791 | sv = new_constant(PL_tokenbuf, d - PL_tokenbuf, |
b8403495 JH |
10792 | (floatit ? "float" : "integer"), |
10793 | sv, Nullsv, NULL); | |
378cc40b | 10794 | break; |
0b7fceb9 | 10795 | |
e312add1 | 10796 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 10797 | case 'v': |
dd629d5b | 10798 | vstring: |
f4758303 | 10799 | sv = NEWSV(92,5); /* preallocate storage space */ |
b0f01acb | 10800 | s = scan_vstring(s,sv); |
a7cb1f99 | 10801 | break; |
79072805 | 10802 | } |
a687059c | 10803 | |
02aa26ce NT |
10804 | /* make the op for the constant and return */ |
10805 | ||
a86a20aa | 10806 | if (sv) |
b73d6f50 | 10807 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 10808 | else |
b73d6f50 | 10809 | lvalp->opval = Nullop; |
a687059c | 10810 | |
73d840c0 | 10811 | return (char *)s; |
378cc40b LW |
10812 | } |
10813 | ||
76e3520e | 10814 | STATIC char * |
cea2e8a9 | 10815 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 10816 | { |
97aff369 | 10817 | dVAR; |
79072805 | 10818 | register char *eol; |
378cc40b | 10819 | register char *t; |
6136c704 | 10820 | SV * const stuff = newSVpvs(""); |
79072805 | 10821 | bool needargs = FALSE; |
c5ee2135 | 10822 | bool eofmt = FALSE; |
378cc40b | 10823 | |
79072805 | 10824 | while (!needargs) { |
a1b95068 | 10825 | if (*s == '.') { |
51882d45 | 10826 | #ifdef PERL_STRICT_CR |
bf4acbe4 | 10827 | for (t = s+1;SPACE_OR_TAB(*t); t++) ; |
51882d45 | 10828 | #else |
bf4acbe4 | 10829 | for (t = s+1;SPACE_OR_TAB(*t) || *t == '\r'; t++) ; |
51882d45 | 10830 | #endif |
c5ee2135 WL |
10831 | if (*t == '\n' || t == PL_bufend) { |
10832 | eofmt = TRUE; | |
79072805 | 10833 | break; |
c5ee2135 | 10834 | } |
79072805 | 10835 | } |
3280af22 | 10836 | if (PL_in_eval && !PL_rsfp) { |
07409e01 | 10837 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 10838 | if (!eol++) |
3280af22 | 10839 | eol = PL_bufend; |
0f85fab0 LW |
10840 | } |
10841 | else | |
3280af22 | 10842 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 10843 | if (*s != '#') { |
a0d0e21e LW |
10844 | for (t = s; t < eol; t++) { |
10845 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
10846 | needargs = FALSE; | |
10847 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 10848 | } |
a0d0e21e LW |
10849 | if (*t == '@' || *t == '^') |
10850 | needargs = TRUE; | |
378cc40b | 10851 | } |
7121b347 MG |
10852 | if (eol > s) { |
10853 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 10854 | #ifndef PERL_STRICT_CR |
7121b347 MG |
10855 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
10856 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
10857 | end[-2] = '\n'; | |
10858 | end[-1] = '\0'; | |
b162af07 | 10859 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 10860 | } |
2dc4c65b | 10861 | #endif |
7121b347 MG |
10862 | } |
10863 | else | |
10864 | break; | |
79072805 | 10865 | } |
95a20fc0 | 10866 | s = (char*)eol; |
3280af22 NIS |
10867 | if (PL_rsfp) { |
10868 | s = filter_gets(PL_linestr, PL_rsfp, 0); | |
10869 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
10870 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); | |
207e3d1a | 10871 | PL_last_lop = PL_last_uni = Nullch; |
79072805 | 10872 | if (!s) { |
3280af22 | 10873 | s = PL_bufptr; |
378cc40b LW |
10874 | break; |
10875 | } | |
378cc40b | 10876 | } |
463ee0b2 | 10877 | incline(s); |
79072805 | 10878 | } |
a0d0e21e LW |
10879 | enough: |
10880 | if (SvCUR(stuff)) { | |
3280af22 | 10881 | PL_expect = XTERM; |
79072805 | 10882 | if (needargs) { |
3280af22 NIS |
10883 | PL_lex_state = LEX_NORMAL; |
10884 | PL_nextval[PL_nexttoke].ival = 0; | |
79072805 LW |
10885 | force_next(','); |
10886 | } | |
a0d0e21e | 10887 | else |
3280af22 | 10888 | PL_lex_state = LEX_FORMLINE; |
1bd51a4c | 10889 | if (!IN_BYTES) { |
95a20fc0 | 10890 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
1bd51a4c IH |
10891 | SvUTF8_on(stuff); |
10892 | else if (PL_encoding) | |
10893 | sv_recode_to_utf8(stuff, PL_encoding); | |
10894 | } | |
3280af22 | 10895 | PL_nextval[PL_nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 10896 | force_next(THING); |
3280af22 | 10897 | PL_nextval[PL_nexttoke].ival = OP_FORMLINE; |
79072805 | 10898 | force_next(LSTOP); |
378cc40b | 10899 | } |
79072805 | 10900 | else { |
8990e307 | 10901 | SvREFCNT_dec(stuff); |
c5ee2135 WL |
10902 | if (eofmt) |
10903 | PL_lex_formbrack = 0; | |
3280af22 | 10904 | PL_bufptr = s; |
79072805 LW |
10905 | } |
10906 | return s; | |
378cc40b | 10907 | } |
a687059c | 10908 | |
76e3520e | 10909 | STATIC void |
cea2e8a9 | 10910 | S_set_csh(pTHX) |
a687059c | 10911 | { |
ae986130 | 10912 | #ifdef CSH |
97aff369 | 10913 | dVAR; |
3280af22 NIS |
10914 | if (!PL_cshlen) |
10915 | PL_cshlen = strlen(PL_cshname); | |
ae986130 | 10916 | #endif |
a687059c | 10917 | } |
463ee0b2 | 10918 | |
ba6d6ac9 | 10919 | I32 |
864dbfa3 | 10920 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 10921 | { |
97aff369 | 10922 | dVAR; |
a3b680e6 | 10923 | const I32 oldsavestack_ix = PL_savestack_ix; |
6136c704 | 10924 | CV* const outsidecv = PL_compcv; |
8990e307 | 10925 | |
3280af22 NIS |
10926 | if (PL_compcv) { |
10927 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 10928 | } |
7766f137 | 10929 | SAVEI32(PL_subline); |
3280af22 | 10930 | save_item(PL_subname); |
3280af22 | 10931 | SAVESPTR(PL_compcv); |
3280af22 NIS |
10932 | |
10933 | PL_compcv = (CV*)NEWSV(1104,0); | |
10934 | sv_upgrade((SV *)PL_compcv, is_format ? SVt_PVFM : SVt_PVCV); | |
10935 | CvFLAGS(PL_compcv) |= flags; | |
10936 | ||
57843af0 | 10937 | PL_subline = CopLINE(PL_curcop); |
dd2155a4 | 10938 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
3280af22 | 10939 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc(outsidecv); |
a3985cdc | 10940 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
748a9306 | 10941 | |
8990e307 LW |
10942 | return oldsavestack_ix; |
10943 | } | |
10944 | ||
084592ab CN |
10945 | #ifdef __SC__ |
10946 | #pragma segment Perl_yylex | |
10947 | #endif | |
8990e307 | 10948 | int |
bfed75c6 | 10949 | Perl_yywarn(pTHX_ const char *s) |
8990e307 | 10950 | { |
97aff369 | 10951 | dVAR; |
faef0170 | 10952 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 10953 | yyerror(s); |
faef0170 | 10954 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 10955 | return 0; |
8990e307 LW |
10956 | } |
10957 | ||
10958 | int | |
bfed75c6 | 10959 | Perl_yyerror(pTHX_ const char *s) |
463ee0b2 | 10960 | { |
97aff369 | 10961 | dVAR; |
bfed75c6 AL |
10962 | const char *where = NULL; |
10963 | const char *context = NULL; | |
68dc0745 | 10964 | int contlen = -1; |
46fc3d4c | 10965 | SV *msg; |
463ee0b2 | 10966 | |
3280af22 | 10967 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 10968 | where = "at EOF"; |
8bcfe651 TM |
10969 | else if (PL_oldoldbufptr && PL_bufptr > PL_oldoldbufptr && |
10970 | PL_bufptr - PL_oldoldbufptr < 200 && PL_oldoldbufptr != PL_oldbufptr && | |
10971 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
10972 | /* |
10973 | Only for NetWare: | |
10974 | The code below is removed for NetWare because it abends/crashes on NetWare | |
10975 | when the script has error such as not having the closing quotes like: | |
10976 | if ($var eq "value) | |
10977 | Checking of white spaces is anyway done in NetWare code. | |
10978 | */ | |
10979 | #ifndef NETWARE | |
3280af22 NIS |
10980 | while (isSPACE(*PL_oldoldbufptr)) |
10981 | PL_oldoldbufptr++; | |
f355267c | 10982 | #endif |
3280af22 NIS |
10983 | context = PL_oldoldbufptr; |
10984 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 10985 | } |
8bcfe651 TM |
10986 | else if (PL_oldbufptr && PL_bufptr > PL_oldbufptr && |
10987 | PL_bufptr - PL_oldbufptr < 200 && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
10988 | /* |
10989 | Only for NetWare: | |
10990 | The code below is removed for NetWare because it abends/crashes on NetWare | |
10991 | when the script has error such as not having the closing quotes like: | |
10992 | if ($var eq "value) | |
10993 | Checking of white spaces is anyway done in NetWare code. | |
10994 | */ | |
10995 | #ifndef NETWARE | |
3280af22 NIS |
10996 | while (isSPACE(*PL_oldbufptr)) |
10997 | PL_oldbufptr++; | |
f355267c | 10998 | #endif |
3280af22 NIS |
10999 | context = PL_oldbufptr; |
11000 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
11001 | } |
11002 | else if (yychar > 255) | |
68dc0745 | 11003 | where = "next token ???"; |
12fbd33b | 11004 | else if (yychar == -2) { /* YYEMPTY */ |
3280af22 NIS |
11005 | if (PL_lex_state == LEX_NORMAL || |
11006 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 11007 | where = "at end of line"; |
3280af22 | 11008 | else if (PL_lex_inpat) |
68dc0745 | 11009 | where = "within pattern"; |
463ee0b2 | 11010 | else |
68dc0745 | 11011 | where = "within string"; |
463ee0b2 | 11012 | } |
46fc3d4c | 11013 | else { |
6136c704 | 11014 | SV * const where_sv = sv_2mortal(newSVpvs("next char ")); |
46fc3d4c | 11015 | if (yychar < 32) |
cea2e8a9 | 11016 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
46fc3d4c | 11017 | else if (isPRINT_LC(yychar)) |
cea2e8a9 | 11018 | Perl_sv_catpvf(aTHX_ where_sv, "%c", yychar); |
463ee0b2 | 11019 | else |
cea2e8a9 | 11020 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
95a20fc0 | 11021 | where = SvPVX_const(where_sv); |
463ee0b2 | 11022 | } |
46fc3d4c | 11023 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 11024 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 11025 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 11026 | if (context) |
cea2e8a9 | 11027 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 11028 | else |
cea2e8a9 | 11029 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 11030 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 11031 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 11032 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 11033 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 11034 | PL_multi_end = 0; |
a0d0e21e | 11035 | } |
56da5a46 RGS |
11036 | if (PL_in_eval & EVAL_WARNONLY && ckWARN_d(WARN_SYNTAX)) |
11037 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, msg); | |
463ee0b2 | 11038 | else |
5a844595 | 11039 | qerror(msg); |
c7d6bfb2 GS |
11040 | if (PL_error_count >= 10) { |
11041 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 11042 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
248c2a4d | 11043 | ERRSV, OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
11044 | else |
11045 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 11046 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 11047 | } |
3280af22 | 11048 | PL_in_my = 0; |
5c284bb0 | 11049 | PL_in_my_stash = NULL; |
463ee0b2 LW |
11050 | return 0; |
11051 | } | |
084592ab CN |
11052 | #ifdef __SC__ |
11053 | #pragma segment Main | |
11054 | #endif | |
4e35701f | 11055 | |
b250498f | 11056 | STATIC char* |
3ae08724 | 11057 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 11058 | { |
97aff369 | 11059 | dVAR; |
f54cb97a | 11060 | const STRLEN slen = SvCUR(PL_linestr); |
7aa207d6 | 11061 | switch (s[0]) { |
4e553d73 NIS |
11062 | case 0xFF: |
11063 | if (s[1] == 0xFE) { | |
7aa207d6 | 11064 | /* UTF-16 little-endian? (or UTF32-LE?) */ |
3ae08724 | 11065 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
7aa207d6 | 11066 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-LE"); |
01ec43d0 | 11067 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 11068 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF16-LE script encoding (BOM)\n"); |
3ae08724 | 11069 | s += 2; |
7aa207d6 | 11070 | utf16le: |
dea0fc0b JH |
11071 | if (PL_bufend > (char*)s) { |
11072 | U8 *news; | |
11073 | I32 newlen; | |
11074 | ||
11075 | filter_add(utf16rev_textfilter, NULL); | |
a02a5408 | 11076 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd RGS |
11077 | utf16_to_utf8_reversed(s, news, |
11078 | PL_bufend - (char*)s - 1, | |
11079 | &newlen); | |
7aa207d6 | 11080 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
dea0fc0b | 11081 | Safefree(news); |
7aa207d6 JH |
11082 | SvUTF8_on(PL_linestr); |
11083 | s = (U8*)SvPVX(PL_linestr); | |
11084 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
dea0fc0b | 11085 | } |
b250498f | 11086 | #else |
7aa207d6 | 11087 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-LE"); |
b250498f | 11088 | #endif |
01ec43d0 GS |
11089 | } |
11090 | break; | |
78ae23f5 | 11091 | case 0xFE: |
7aa207d6 | 11092 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 11093 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 11094 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b | 11095 | s += 2; |
7aa207d6 | 11096 | utf16be: |
dea0fc0b JH |
11097 | if (PL_bufend > (char *)s) { |
11098 | U8 *news; | |
11099 | I32 newlen; | |
11100 | ||
11101 | filter_add(utf16_textfilter, NULL); | |
a02a5408 | 11102 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd RGS |
11103 | utf16_to_utf8(s, news, |
11104 | PL_bufend - (char*)s, | |
11105 | &newlen); | |
7aa207d6 | 11106 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
dea0fc0b | 11107 | Safefree(news); |
7aa207d6 JH |
11108 | SvUTF8_on(PL_linestr); |
11109 | s = (U8*)SvPVX(PL_linestr); | |
11110 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
dea0fc0b | 11111 | } |
b250498f | 11112 | #else |
7aa207d6 | 11113 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-BE"); |
b250498f | 11114 | #endif |
01ec43d0 GS |
11115 | } |
11116 | break; | |
3ae08724 GS |
11117 | case 0xEF: |
11118 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
7aa207d6 | 11119 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
11120 | s += 3; /* UTF-8 */ |
11121 | } | |
11122 | break; | |
11123 | case 0: | |
7aa207d6 JH |
11124 | if (slen > 3) { |
11125 | if (s[1] == 0) { | |
11126 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
11127 | /* UTF-32 big-endian */ | |
11128 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-BE"); | |
11129 | } | |
11130 | } | |
11131 | else if (s[2] == 0 && s[3] != 0) { | |
11132 | /* Leading bytes | |
11133 | * 00 xx 00 xx | |
11134 | * are a good indicator of UTF-16BE. */ | |
11135 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); | |
11136 | goto utf16be; | |
11137 | } | |
01ec43d0 | 11138 | } |
7aa207d6 JH |
11139 | default: |
11140 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
11141 | /* Leading bytes | |
11142 | * xx 00 xx 00 | |
11143 | * are a good indicator of UTF-16LE. */ | |
11144 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); | |
11145 | goto utf16le; | |
11146 | } | |
01ec43d0 | 11147 | } |
b8f84bb2 | 11148 | return (char*)s; |
b250498f | 11149 | } |
4755096e | 11150 | |
4755096e GS |
11151 | /* |
11152 | * restore_rsfp | |
11153 | * Restore a source filter. | |
11154 | */ | |
11155 | ||
11156 | static void | |
acfe0abc | 11157 | restore_rsfp(pTHX_ void *f) |
4755096e | 11158 | { |
97aff369 | 11159 | dVAR; |
0bd48802 | 11160 | PerlIO * const fp = (PerlIO*)f; |
4755096e GS |
11161 | |
11162 | if (PL_rsfp == PerlIO_stdin()) | |
11163 | PerlIO_clearerr(PL_rsfp); | |
11164 | else if (PL_rsfp && (PL_rsfp != fp)) | |
11165 | PerlIO_close(PL_rsfp); | |
11166 | PL_rsfp = fp; | |
11167 | } | |
6e3aabd6 GS |
11168 | |
11169 | #ifndef PERL_NO_UTF16_FILTER | |
11170 | static I32 | |
acfe0abc | 11171 | utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 11172 | { |
97aff369 | 11173 | dVAR; |
f54cb97a AL |
11174 | const STRLEN old = SvCUR(sv); |
11175 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
11176 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
11177 | "utf16_textfilter(%p): %d %d (%d)\n", | |
4fccd7c6 | 11178 | utf16_textfilter, idx, maxlen, (int) count)); |
6e3aabd6 GS |
11179 | if (count) { |
11180 | U8* tmps; | |
dea0fc0b | 11181 | I32 newlen; |
a02a5408 | 11182 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
11183 | Copy(SvPVX_const(sv), tmps, old, char); |
11184 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
11185 | SvCUR(sv) - old, &newlen); |
11186 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 11187 | } |
1de9afcd RGS |
11188 | DEBUG_P({sv_dump(sv);}); |
11189 | return SvCUR(sv); | |
6e3aabd6 GS |
11190 | } |
11191 | ||
11192 | static I32 | |
acfe0abc | 11193 | utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 11194 | { |
97aff369 | 11195 | dVAR; |
f54cb97a AL |
11196 | const STRLEN old = SvCUR(sv); |
11197 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
11198 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
11199 | "utf16rev_textfilter(%p): %d %d (%d)\n", | |
4fccd7c6 | 11200 | utf16rev_textfilter, idx, maxlen, (int) count)); |
6e3aabd6 GS |
11201 | if (count) { |
11202 | U8* tmps; | |
dea0fc0b | 11203 | I32 newlen; |
a02a5408 | 11204 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
11205 | Copy(SvPVX_const(sv), tmps, old, char); |
11206 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
11207 | SvCUR(sv) - old, &newlen); |
11208 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 11209 | } |
1de9afcd | 11210 | DEBUG_P({ sv_dump(sv); }); |
6e3aabd6 GS |
11211 | return count; |
11212 | } | |
11213 | #endif | |
9f4817db | 11214 | |
f333445c JP |
11215 | /* |
11216 | Returns a pointer to the next character after the parsed | |
11217 | vstring, as well as updating the passed in sv. | |
11218 | ||
11219 | Function must be called like | |
11220 | ||
11221 | sv = NEWSV(92,5); | |
11222 | s = scan_vstring(s,sv); | |
11223 | ||
11224 | The sv should already be large enough to store the vstring | |
11225 | passed in, for performance reasons. | |
11226 | ||
11227 | */ | |
11228 | ||
11229 | char * | |
bfed75c6 | 11230 | Perl_scan_vstring(pTHX_ const char *s, SV *sv) |
f333445c | 11231 | { |
97aff369 | 11232 | dVAR; |
bfed75c6 AL |
11233 | const char *pos = s; |
11234 | const char *start = s; | |
f333445c | 11235 | if (*pos == 'v') pos++; /* get past 'v' */ |
3e884cbf JH |
11236 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
11237 | pos++; | |
f333445c JP |
11238 | if ( *pos != '.') { |
11239 | /* this may not be a v-string if followed by => */ | |
bfed75c6 | 11240 | const char *next = pos; |
8fc7bb1c SM |
11241 | while (next < PL_bufend && isSPACE(*next)) |
11242 | ++next; | |
11243 | if ((PL_bufend - next) >= 2 && *next == '=' && next[1] == '>' ) { | |
f333445c JP |
11244 | /* return string not v-string */ |
11245 | sv_setpvn(sv,(char *)s,pos-s); | |
73d840c0 | 11246 | return (char *)pos; |
f333445c JP |
11247 | } |
11248 | } | |
11249 | ||
11250 | if (!isALPHA(*pos)) { | |
89ebb4a3 | 11251 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
f333445c JP |
11252 | |
11253 | if (*s == 'v') s++; /* get past 'v' */ | |
11254 | ||
11255 | sv_setpvn(sv, "", 0); | |
11256 | ||
11257 | for (;;) { | |
0bd48802 AL |
11258 | U8 *tmpend; |
11259 | UV rev = 0; | |
f333445c JP |
11260 | { |
11261 | /* this is atoi() that tolerates underscores */ | |
bfed75c6 | 11262 | const char *end = pos; |
f333445c JP |
11263 | UV mult = 1; |
11264 | while (--end >= s) { | |
11265 | UV orev; | |
11266 | if (*end == '_') | |
11267 | continue; | |
11268 | orev = rev; | |
11269 | rev += (*end - '0') * mult; | |
11270 | mult *= 10; | |
11271 | if (orev > rev && ckWARN_d(WARN_OVERFLOW)) | |
11272 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), | |
11273 | "Integer overflow in decimal number"); | |
11274 | } | |
11275 | } | |
11276 | #ifdef EBCDIC | |
11277 | if (rev > 0x7FFFFFFF) | |
11278 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
11279 | #endif | |
11280 | /* Append native character for the rev point */ | |
11281 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
11282 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
11283 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
11284 | SvUTF8_on(sv); | |
3e884cbf | 11285 | if (pos + 1 < PL_bufend && *pos == '.' && isDIGIT(pos[1])) |
f333445c JP |
11286 | s = ++pos; |
11287 | else { | |
11288 | s = pos; | |
11289 | break; | |
11290 | } | |
3e884cbf | 11291 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
f333445c JP |
11292 | pos++; |
11293 | } | |
11294 | SvPOK_on(sv); | |
11295 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
11296 | SvRMAGICAL_on(sv); | |
11297 | } | |
73d840c0 | 11298 | return (char *)s; |
f333445c JP |
11299 | } |
11300 | ||
1da4ca5f NC |
11301 | /* |
11302 | * Local variables: | |
11303 | * c-indentation-style: bsd | |
11304 | * c-basic-offset: 4 | |
11305 | * indent-tabs-mode: t | |
11306 | * End: | |
11307 | * | |
37442d52 RGS |
11308 | * ex: set ts=8 sts=4 sw=4 noet: |
11309 | */ |