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 | |
29595ff2 | 38 | #ifdef PERL_MAD |
29595ff2 | 39 | # define CURMAD(slot,sv) if (PL_madskills) { curmad(slot,sv); sv = 0; } |
cd81e915 | 40 | # define NEXTVAL_NEXTTOKE PL_nexttoke[PL_curforce].next_val |
9ded7720 | 41 | #else |
5db06880 | 42 | # define CURMAD(slot,sv) |
9ded7720 | 43 | # define NEXTVAL_NEXTTOKE PL_nextval[PL_nexttoke] |
29595ff2 NC |
44 | #endif |
45 | ||
9059aa12 LW |
46 | #define XFAKEBRACK 128 |
47 | #define XENUMMASK 127 | |
48 | ||
39e02b42 JH |
49 | #ifdef USE_UTF8_SCRIPTS |
50 | # define UTF (!IN_BYTES) | |
2b9d42f0 | 51 | #else |
746b446a | 52 | # define UTF ((PL_linestr && DO_UTF8(PL_linestr)) || (PL_hints & HINT_UTF8)) |
2b9d42f0 | 53 | #endif |
a0ed51b3 | 54 | |
61f0cdd9 | 55 | /* In variables named $^X, these are the legal values for X. |
2b92dfce GS |
56 | * 1999-02-27 mjd-perl-patch@plover.com */ |
57 | #define isCONTROLVAR(x) (isUPPER(x) || strchr("[\\]^_?", (x))) | |
58 | ||
bf4acbe4 GS |
59 | /* On MacOS, respect nonbreaking spaces */ |
60 | #ifdef MACOS_TRADITIONAL | |
61 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\312'||(c)=='\t') | |
62 | #else | |
63 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\t') | |
64 | #endif | |
65 | ||
ffb4593c NT |
66 | /* LEX_* are values for PL_lex_state, the state of the lexer. |
67 | * They are arranged oddly so that the guard on the switch statement | |
79072805 LW |
68 | * can get by with a single comparison (if the compiler is smart enough). |
69 | */ | |
70 | ||
fb73857a | 71 | /* #define LEX_NOTPARSING 11 is done in perl.h. */ |
72 | ||
b6007c36 DM |
73 | #define LEX_NORMAL 10 /* normal code (ie not within "...") */ |
74 | #define LEX_INTERPNORMAL 9 /* code within a string, eg "$foo[$x+1]" */ | |
75 | #define LEX_INTERPCASEMOD 8 /* expecting a \U, \Q or \E etc */ | |
76 | #define LEX_INTERPPUSH 7 /* starting a new sublex parse level */ | |
77 | #define LEX_INTERPSTART 6 /* expecting the start of a $var */ | |
78 | ||
79 | /* at end of code, eg "$x" followed by: */ | |
80 | #define LEX_INTERPEND 5 /* ... eg not one of [, { or -> */ | |
81 | #define LEX_INTERPENDMAYBE 4 /* ... eg one of [, { or -> */ | |
82 | ||
83 | #define LEX_INTERPCONCAT 3 /* expecting anything, eg at start of | |
84 | string or after \E, $foo, etc */ | |
85 | #define LEX_INTERPCONST 2 /* NOT USED */ | |
86 | #define LEX_FORMLINE 1 /* expecting a format line */ | |
87 | #define LEX_KNOWNEXT 0 /* next token known; just return it */ | |
88 | ||
79072805 | 89 | |
bbf60fe6 | 90 | #ifdef DEBUGGING |
27da23d5 | 91 | static const char* const lex_state_names[] = { |
bbf60fe6 DM |
92 | "KNOWNEXT", |
93 | "FORMLINE", | |
94 | "INTERPCONST", | |
95 | "INTERPCONCAT", | |
96 | "INTERPENDMAYBE", | |
97 | "INTERPEND", | |
98 | "INTERPSTART", | |
99 | "INTERPPUSH", | |
100 | "INTERPCASEMOD", | |
101 | "INTERPNORMAL", | |
102 | "NORMAL" | |
103 | }; | |
104 | #endif | |
105 | ||
79072805 LW |
106 | #ifdef ff_next |
107 | #undef ff_next | |
d48672a2 LW |
108 | #endif |
109 | ||
79072805 | 110 | #include "keywords.h" |
fe14fcc3 | 111 | |
ffb4593c NT |
112 | /* CLINE is a macro that ensures PL_copline has a sane value */ |
113 | ||
ae986130 LW |
114 | #ifdef CLINE |
115 | #undef CLINE | |
116 | #endif | |
57843af0 | 117 | #define CLINE (PL_copline = (CopLINE(PL_curcop) < PL_copline ? CopLINE(PL_curcop) : PL_copline)) |
3280af22 | 118 | |
5db06880 | 119 | #ifdef PERL_MAD |
29595ff2 NC |
120 | # define SKIPSPACE0(s) skipspace0(s) |
121 | # define SKIPSPACE1(s) skipspace1(s) | |
122 | # define SKIPSPACE2(s,tsv) skipspace2(s,&tsv) | |
123 | # define PEEKSPACE(s) skipspace2(s,0) | |
124 | #else | |
125 | # define SKIPSPACE0(s) skipspace(s) | |
126 | # define SKIPSPACE1(s) skipspace(s) | |
127 | # define SKIPSPACE2(s,tsv) skipspace(s) | |
128 | # define PEEKSPACE(s) skipspace(s) | |
129 | #endif | |
130 | ||
ffb4593c NT |
131 | /* |
132 | * Convenience functions to return different tokens and prime the | |
9cbb5ea2 | 133 | * lexer for the next token. They all take an argument. |
ffb4593c NT |
134 | * |
135 | * TOKEN : generic token (used for '(', DOLSHARP, etc) | |
136 | * OPERATOR : generic operator | |
137 | * AOPERATOR : assignment operator | |
138 | * PREBLOCK : beginning the block after an if, while, foreach, ... | |
139 | * PRETERMBLOCK : beginning a non-code-defining {} block (eg, hash ref) | |
140 | * PREREF : *EXPR where EXPR is not a simple identifier | |
141 | * TERM : expression term | |
142 | * LOOPX : loop exiting command (goto, last, dump, etc) | |
143 | * FTST : file test operator | |
144 | * FUN0 : zero-argument function | |
2d2e263d | 145 | * FUN1 : not used, except for not, which isn't a UNIOP |
ffb4593c NT |
146 | * BOop : bitwise or or xor |
147 | * BAop : bitwise and | |
148 | * SHop : shift operator | |
149 | * PWop : power operator | |
9cbb5ea2 | 150 | * PMop : pattern-matching operator |
ffb4593c NT |
151 | * Aop : addition-level operator |
152 | * Mop : multiplication-level operator | |
153 | * Eop : equality-testing operator | |
e5edeb50 | 154 | * Rop : relational operator <= != gt |
ffb4593c NT |
155 | * |
156 | * Also see LOP and lop() below. | |
157 | */ | |
158 | ||
998054bd | 159 | #ifdef DEBUGGING /* Serve -DT. */ |
f5bd084c | 160 | # define REPORT(retval) tokereport((I32)retval) |
998054bd | 161 | #else |
bbf60fe6 | 162 | # define REPORT(retval) (retval) |
998054bd SC |
163 | #endif |
164 | ||
bbf60fe6 DM |
165 | #define TOKEN(retval) return ( PL_bufptr = s, REPORT(retval)) |
166 | #define OPERATOR(retval) return (PL_expect = XTERM, PL_bufptr = s, REPORT(retval)) | |
167 | #define AOPERATOR(retval) return ao((PL_expect = XTERM, PL_bufptr = s, REPORT(retval))) | |
168 | #define PREBLOCK(retval) return (PL_expect = XBLOCK,PL_bufptr = s, REPORT(retval)) | |
169 | #define PRETERMBLOCK(retval) return (PL_expect = XTERMBLOCK,PL_bufptr = s, REPORT(retval)) | |
170 | #define PREREF(retval) return (PL_expect = XREF,PL_bufptr = s, REPORT(retval)) | |
171 | #define TERM(retval) return (CLINE, PL_expect = XOPERATOR, PL_bufptr = s, REPORT(retval)) | |
172 | #define LOOPX(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)LOOPEX)) | |
173 | #define FTST(f) return (yylval.ival=f, PL_expect=XTERMORDORDOR, PL_bufptr=s, REPORT((int)UNIOP)) | |
174 | #define FUN0(f) return (yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC0)) | |
175 | #define FUN1(f) return (yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC1)) | |
176 | #define BOop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITOROP))) | |
177 | #define BAop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITANDOP))) | |
178 | #define SHop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)SHIFTOP))) | |
179 | #define PWop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)POWOP))) | |
180 | #define PMop(f) return(yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MATCHOP)) | |
181 | #define Aop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)ADDOP))) | |
182 | #define Mop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MULOP))) | |
183 | #define Eop(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)EQOP)) | |
184 | #define Rop(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)RELOP)) | |
2f3197b3 | 185 | |
a687059c LW |
186 | /* This bit of chicanery makes a unary function followed by |
187 | * a parenthesis into a function with one argument, highest precedence. | |
6f33ba73 RGS |
188 | * The UNIDOR macro is for unary functions that can be followed by the // |
189 | * operator (such as C<shift // 0>). | |
a687059c | 190 | */ |
376fcdbf AL |
191 | #define UNI2(f,x) { \ |
192 | yylval.ival = f; \ | |
193 | PL_expect = x; \ | |
194 | PL_bufptr = s; \ | |
195 | PL_last_uni = PL_oldbufptr; \ | |
196 | PL_last_lop_op = f; \ | |
197 | if (*s == '(') \ | |
198 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 199 | s = PEEKSPACE(s); \ |
376fcdbf AL |
200 | return REPORT( *s=='(' ? (int)FUNC1 : (int)UNIOP ); \ |
201 | } | |
6f33ba73 RGS |
202 | #define UNI(f) UNI2(f,XTERM) |
203 | #define UNIDOR(f) UNI2(f,XTERMORDORDOR) | |
a687059c | 204 | |
376fcdbf AL |
205 | #define UNIBRACK(f) { \ |
206 | yylval.ival = f; \ | |
207 | PL_bufptr = s; \ | |
208 | PL_last_uni = PL_oldbufptr; \ | |
209 | if (*s == '(') \ | |
210 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 211 | s = PEEKSPACE(s); \ |
376fcdbf AL |
212 | return REPORT( (*s == '(') ? (int)FUNC1 : (int)UNIOP ); \ |
213 | } | |
79072805 | 214 | |
9f68db38 | 215 | /* grandfather return to old style */ |
3280af22 | 216 | #define OLDLOP(f) return(yylval.ival=f,PL_expect = XTERM,PL_bufptr = s,(int)LSTOP) |
79072805 | 217 | |
8fa7f367 JH |
218 | #ifdef DEBUGGING |
219 | ||
bbf60fe6 DM |
220 | /* how to interpret the yylval associated with the token */ |
221 | enum token_type { | |
222 | TOKENTYPE_NONE, | |
223 | TOKENTYPE_IVAL, | |
224 | TOKENTYPE_OPNUM, /* yylval.ival contains an opcode number */ | |
225 | TOKENTYPE_PVAL, | |
226 | TOKENTYPE_OPVAL, | |
227 | TOKENTYPE_GVVAL | |
228 | }; | |
229 | ||
6d4a66ac NC |
230 | static struct debug_tokens { |
231 | const int token; | |
232 | enum token_type type; | |
233 | const char *name; | |
234 | } const debug_tokens[] = | |
9041c2e3 | 235 | { |
bbf60fe6 DM |
236 | { ADDOP, TOKENTYPE_OPNUM, "ADDOP" }, |
237 | { ANDAND, TOKENTYPE_NONE, "ANDAND" }, | |
238 | { ANDOP, TOKENTYPE_NONE, "ANDOP" }, | |
239 | { ANONSUB, TOKENTYPE_IVAL, "ANONSUB" }, | |
240 | { ARROW, TOKENTYPE_NONE, "ARROW" }, | |
241 | { ASSIGNOP, TOKENTYPE_OPNUM, "ASSIGNOP" }, | |
242 | { BITANDOP, TOKENTYPE_OPNUM, "BITANDOP" }, | |
243 | { BITOROP, TOKENTYPE_OPNUM, "BITOROP" }, | |
244 | { COLONATTR, TOKENTYPE_NONE, "COLONATTR" }, | |
245 | { CONTINUE, TOKENTYPE_NONE, "CONTINUE" }, | |
0d863452 | 246 | { DEFAULT, TOKENTYPE_NONE, "DEFAULT" }, |
bbf60fe6 DM |
247 | { DO, TOKENTYPE_NONE, "DO" }, |
248 | { DOLSHARP, TOKENTYPE_NONE, "DOLSHARP" }, | |
249 | { DORDOR, TOKENTYPE_NONE, "DORDOR" }, | |
250 | { DOROP, TOKENTYPE_OPNUM, "DOROP" }, | |
251 | { DOTDOT, TOKENTYPE_IVAL, "DOTDOT" }, | |
252 | { ELSE, TOKENTYPE_NONE, "ELSE" }, | |
253 | { ELSIF, TOKENTYPE_IVAL, "ELSIF" }, | |
254 | { EQOP, TOKENTYPE_OPNUM, "EQOP" }, | |
255 | { FOR, TOKENTYPE_IVAL, "FOR" }, | |
256 | { FORMAT, TOKENTYPE_NONE, "FORMAT" }, | |
257 | { FUNC, TOKENTYPE_OPNUM, "FUNC" }, | |
258 | { FUNC0, TOKENTYPE_OPNUM, "FUNC0" }, | |
259 | { FUNC0SUB, TOKENTYPE_OPVAL, "FUNC0SUB" }, | |
260 | { FUNC1, TOKENTYPE_OPNUM, "FUNC1" }, | |
261 | { FUNCMETH, TOKENTYPE_OPVAL, "FUNCMETH" }, | |
0d863452 | 262 | { GIVEN, TOKENTYPE_IVAL, "GIVEN" }, |
bbf60fe6 DM |
263 | { HASHBRACK, TOKENTYPE_NONE, "HASHBRACK" }, |
264 | { IF, TOKENTYPE_IVAL, "IF" }, | |
265 | { LABEL, TOKENTYPE_PVAL, "LABEL" }, | |
266 | { LOCAL, TOKENTYPE_IVAL, "LOCAL" }, | |
267 | { LOOPEX, TOKENTYPE_OPNUM, "LOOPEX" }, | |
268 | { LSTOP, TOKENTYPE_OPNUM, "LSTOP" }, | |
269 | { LSTOPSUB, TOKENTYPE_OPVAL, "LSTOPSUB" }, | |
270 | { MATCHOP, TOKENTYPE_OPNUM, "MATCHOP" }, | |
271 | { METHOD, TOKENTYPE_OPVAL, "METHOD" }, | |
272 | { MULOP, TOKENTYPE_OPNUM, "MULOP" }, | |
273 | { MY, TOKENTYPE_IVAL, "MY" }, | |
274 | { MYSUB, TOKENTYPE_NONE, "MYSUB" }, | |
275 | { NOAMP, TOKENTYPE_NONE, "NOAMP" }, | |
276 | { NOTOP, TOKENTYPE_NONE, "NOTOP" }, | |
277 | { OROP, TOKENTYPE_IVAL, "OROP" }, | |
278 | { OROR, TOKENTYPE_NONE, "OROR" }, | |
279 | { PACKAGE, TOKENTYPE_NONE, "PACKAGE" }, | |
280 | { PMFUNC, TOKENTYPE_OPVAL, "PMFUNC" }, | |
281 | { POSTDEC, TOKENTYPE_NONE, "POSTDEC" }, | |
282 | { POSTINC, TOKENTYPE_NONE, "POSTINC" }, | |
283 | { POWOP, TOKENTYPE_OPNUM, "POWOP" }, | |
284 | { PREDEC, TOKENTYPE_NONE, "PREDEC" }, | |
285 | { PREINC, TOKENTYPE_NONE, "PREINC" }, | |
286 | { PRIVATEREF, TOKENTYPE_OPVAL, "PRIVATEREF" }, | |
287 | { REFGEN, TOKENTYPE_NONE, "REFGEN" }, | |
288 | { RELOP, TOKENTYPE_OPNUM, "RELOP" }, | |
289 | { SHIFTOP, TOKENTYPE_OPNUM, "SHIFTOP" }, | |
290 | { SUB, TOKENTYPE_NONE, "SUB" }, | |
291 | { THING, TOKENTYPE_OPVAL, "THING" }, | |
292 | { UMINUS, TOKENTYPE_NONE, "UMINUS" }, | |
293 | { UNIOP, TOKENTYPE_OPNUM, "UNIOP" }, | |
294 | { UNIOPSUB, TOKENTYPE_OPVAL, "UNIOPSUB" }, | |
295 | { UNLESS, TOKENTYPE_IVAL, "UNLESS" }, | |
296 | { UNTIL, TOKENTYPE_IVAL, "UNTIL" }, | |
297 | { USE, TOKENTYPE_IVAL, "USE" }, | |
0d863452 | 298 | { WHEN, TOKENTYPE_IVAL, "WHEN" }, |
bbf60fe6 DM |
299 | { WHILE, TOKENTYPE_IVAL, "WHILE" }, |
300 | { WORD, TOKENTYPE_OPVAL, "WORD" }, | |
301 | { 0, TOKENTYPE_NONE, 0 } | |
302 | }; | |
303 | ||
304 | /* dump the returned token in rv, plus any optional arg in yylval */ | |
998054bd | 305 | |
bbf60fe6 | 306 | STATIC int |
f5bd084c | 307 | S_tokereport(pTHX_ I32 rv) |
bbf60fe6 | 308 | { |
97aff369 | 309 | dVAR; |
bbf60fe6 | 310 | if (DEBUG_T_TEST) { |
bd61b366 | 311 | const char *name = NULL; |
bbf60fe6 | 312 | enum token_type type = TOKENTYPE_NONE; |
f54cb97a | 313 | const struct debug_tokens *p; |
396482e1 | 314 | SV* const report = newSVpvs("<== "); |
bbf60fe6 | 315 | |
f54cb97a | 316 | for (p = debug_tokens; p->token; p++) { |
bbf60fe6 DM |
317 | if (p->token == (int)rv) { |
318 | name = p->name; | |
319 | type = p->type; | |
320 | break; | |
321 | } | |
322 | } | |
323 | if (name) | |
54667de8 | 324 | Perl_sv_catpv(aTHX_ report, name); |
bbf60fe6 DM |
325 | else if ((char)rv > ' ' && (char)rv < '~') |
326 | Perl_sv_catpvf(aTHX_ report, "'%c'", (char)rv); | |
327 | else if (!rv) | |
396482e1 | 328 | sv_catpvs(report, "EOF"); |
bbf60fe6 DM |
329 | else |
330 | Perl_sv_catpvf(aTHX_ report, "?? %"IVdf, (IV)rv); | |
331 | switch (type) { | |
332 | case TOKENTYPE_NONE: | |
333 | case TOKENTYPE_GVVAL: /* doesn't appear to be used */ | |
334 | break; | |
335 | case TOKENTYPE_IVAL: | |
e4584336 | 336 | Perl_sv_catpvf(aTHX_ report, "(ival=%"IVdf")", (IV)yylval.ival); |
bbf60fe6 DM |
337 | break; |
338 | case TOKENTYPE_OPNUM: | |
339 | Perl_sv_catpvf(aTHX_ report, "(ival=op_%s)", | |
340 | PL_op_name[yylval.ival]); | |
341 | break; | |
342 | case TOKENTYPE_PVAL: | |
343 | Perl_sv_catpvf(aTHX_ report, "(pval=\"%s\")", yylval.pval); | |
344 | break; | |
345 | case TOKENTYPE_OPVAL: | |
b6007c36 | 346 | if (yylval.opval) { |
401441c0 | 347 | Perl_sv_catpvf(aTHX_ report, "(opval=op_%s)", |
bbf60fe6 | 348 | PL_op_name[yylval.opval->op_type]); |
b6007c36 DM |
349 | if (yylval.opval->op_type == OP_CONST) { |
350 | Perl_sv_catpvf(aTHX_ report, " %s", | |
351 | SvPEEK(cSVOPx_sv(yylval.opval))); | |
352 | } | |
353 | ||
354 | } | |
401441c0 | 355 | else |
396482e1 | 356 | sv_catpvs(report, "(opval=null)"); |
bbf60fe6 DM |
357 | break; |
358 | } | |
b6007c36 | 359 | PerlIO_printf(Perl_debug_log, "### %s\n\n", SvPV_nolen_const(report)); |
bbf60fe6 DM |
360 | }; |
361 | return (int)rv; | |
998054bd SC |
362 | } |
363 | ||
b6007c36 DM |
364 | |
365 | /* print the buffer with suitable escapes */ | |
366 | ||
367 | STATIC void | |
368 | S_printbuf(pTHX_ const char* fmt, const char* s) | |
369 | { | |
396482e1 | 370 | SV* const tmp = newSVpvs(""); |
b6007c36 DM |
371 | PerlIO_printf(Perl_debug_log, fmt, pv_display(tmp, s, strlen(s), 0, 60)); |
372 | SvREFCNT_dec(tmp); | |
373 | } | |
374 | ||
8fa7f367 JH |
375 | #endif |
376 | ||
ffb4593c NT |
377 | /* |
378 | * S_ao | |
379 | * | |
c963b151 BD |
380 | * This subroutine detects &&=, ||=, and //= and turns an ANDAND, OROR or DORDOR |
381 | * into an OP_ANDASSIGN, OP_ORASSIGN, or OP_DORASSIGN | |
ffb4593c NT |
382 | */ |
383 | ||
76e3520e | 384 | STATIC int |
cea2e8a9 | 385 | S_ao(pTHX_ int toketype) |
a0d0e21e | 386 | { |
97aff369 | 387 | dVAR; |
3280af22 NIS |
388 | if (*PL_bufptr == '=') { |
389 | PL_bufptr++; | |
a0d0e21e LW |
390 | if (toketype == ANDAND) |
391 | yylval.ival = OP_ANDASSIGN; | |
392 | else if (toketype == OROR) | |
393 | yylval.ival = OP_ORASSIGN; | |
c963b151 BD |
394 | else if (toketype == DORDOR) |
395 | yylval.ival = OP_DORASSIGN; | |
a0d0e21e LW |
396 | toketype = ASSIGNOP; |
397 | } | |
398 | return toketype; | |
399 | } | |
400 | ||
ffb4593c NT |
401 | /* |
402 | * S_no_op | |
403 | * When Perl expects an operator and finds something else, no_op | |
404 | * prints the warning. It always prints "<something> found where | |
405 | * operator expected. It prints "Missing semicolon on previous line?" | |
406 | * if the surprise occurs at the start of the line. "do you need to | |
407 | * predeclare ..." is printed out for code like "sub bar; foo bar $x" | |
408 | * where the compiler doesn't know if foo is a method call or a function. | |
409 | * It prints "Missing operator before end of line" if there's nothing | |
410 | * after the missing operator, or "... before <...>" if there is something | |
411 | * after the missing operator. | |
412 | */ | |
413 | ||
76e3520e | 414 | STATIC void |
bfed75c6 | 415 | S_no_op(pTHX_ const char *what, char *s) |
463ee0b2 | 416 | { |
97aff369 | 417 | dVAR; |
9d4ba2ae AL |
418 | char * const oldbp = PL_bufptr; |
419 | const bool is_first = (PL_oldbufptr == PL_linestart); | |
68dc0745 | 420 | |
1189a94a GS |
421 | if (!s) |
422 | s = oldbp; | |
07c798fb | 423 | else |
1189a94a | 424 | PL_bufptr = s; |
cea2e8a9 | 425 | yywarn(Perl_form(aTHX_ "%s found where operator expected", what)); |
56da5a46 RGS |
426 | if (ckWARN_d(WARN_SYNTAX)) { |
427 | if (is_first) | |
428 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
429 | "\t(Missing semicolon on previous line?)\n"); | |
430 | else if (PL_oldoldbufptr && isIDFIRST_lazy_if(PL_oldoldbufptr,UTF)) { | |
f54cb97a | 431 | const char *t; |
d4c19fe8 AL |
432 | for (t = PL_oldoldbufptr; *t && (isALNUM_lazy_if(t,UTF) || *t == ':'); t++) |
433 | /**/; | |
56da5a46 RGS |
434 | if (t < PL_bufptr && isSPACE(*t)) |
435 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
436 | "\t(Do you need to predeclare %.*s?)\n", | |
551405c4 | 437 | (int)(t - PL_oldoldbufptr), PL_oldoldbufptr); |
56da5a46 RGS |
438 | } |
439 | else { | |
440 | assert(s >= oldbp); | |
441 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
551405c4 | 442 | "\t(Missing operator before %.*s?)\n", (int)(s - oldbp), oldbp); |
56da5a46 | 443 | } |
07c798fb | 444 | } |
3280af22 | 445 | PL_bufptr = oldbp; |
8990e307 LW |
446 | } |
447 | ||
ffb4593c NT |
448 | /* |
449 | * S_missingterm | |
450 | * Complain about missing quote/regexp/heredoc terminator. | |
d4c19fe8 | 451 | * If it's called with NULL then it cauterizes the line buffer. |
ffb4593c NT |
452 | * If we're in a delimited string and the delimiter is a control |
453 | * character, it's reformatted into a two-char sequence like ^C. | |
454 | * This is fatal. | |
455 | */ | |
456 | ||
76e3520e | 457 | STATIC void |
cea2e8a9 | 458 | S_missingterm(pTHX_ char *s) |
8990e307 | 459 | { |
97aff369 | 460 | dVAR; |
8990e307 LW |
461 | char tmpbuf[3]; |
462 | char q; | |
463 | if (s) { | |
9d4ba2ae | 464 | char * const nl = strrchr(s,'\n'); |
d2719217 | 465 | if (nl) |
8990e307 LW |
466 | *nl = '\0'; |
467 | } | |
9d116dd7 JH |
468 | else if ( |
469 | #ifdef EBCDIC | |
470 | iscntrl(PL_multi_close) | |
471 | #else | |
472 | PL_multi_close < 32 || PL_multi_close == 127 | |
473 | #endif | |
474 | ) { | |
8990e307 | 475 | *tmpbuf = '^'; |
585ec06d | 476 | tmpbuf[1] = (char)toCTRL(PL_multi_close); |
8990e307 LW |
477 | tmpbuf[2] = '\0'; |
478 | s = tmpbuf; | |
479 | } | |
480 | else { | |
eb160463 | 481 | *tmpbuf = (char)PL_multi_close; |
8990e307 LW |
482 | tmpbuf[1] = '\0'; |
483 | s = tmpbuf; | |
484 | } | |
485 | q = strchr(s,'"') ? '\'' : '"'; | |
cea2e8a9 | 486 | Perl_croak(aTHX_ "Can't find string terminator %c%s%c anywhere before EOF",q,s,q); |
463ee0b2 | 487 | } |
79072805 | 488 | |
ef89dcc3 | 489 | #define FEATURE_IS_ENABLED(name) \ |
0d863452 | 490 | ((0 != (PL_hints & HINT_LOCALIZE_HH)) \ |
89529cee | 491 | && S_feature_is_enabled(aTHX_ STR_WITH_LEN(name))) |
0d863452 RH |
492 | /* |
493 | * S_feature_is_enabled | |
494 | * Check whether the named feature is enabled. | |
495 | */ | |
496 | STATIC bool | |
d4c19fe8 | 497 | S_feature_is_enabled(pTHX_ const char *name, STRLEN namelen) |
0d863452 | 498 | { |
97aff369 | 499 | dVAR; |
0d863452 | 500 | HV * const hinthv = GvHV(PL_hintgv); |
7b9ef140 RH |
501 | char he_name[32] = "feature_"; |
502 | (void) strncpy(&he_name[8], name, 24); | |
d4c19fe8 | 503 | |
7b9ef140 | 504 | return (hinthv && hv_exists(hinthv, he_name, 8 + namelen)); |
0d863452 RH |
505 | } |
506 | ||
ffb4593c NT |
507 | /* |
508 | * Perl_deprecate | |
ffb4593c NT |
509 | */ |
510 | ||
79072805 | 511 | void |
bfed75c6 | 512 | Perl_deprecate(pTHX_ const char *s) |
a0d0e21e | 513 | { |
599cee73 | 514 | if (ckWARN(WARN_DEPRECATED)) |
9014280d | 515 | Perl_warner(aTHX_ packWARN(WARN_DEPRECATED), "Use of %s is deprecated", s); |
a0d0e21e LW |
516 | } |
517 | ||
12bcd1a6 | 518 | void |
bfed75c6 | 519 | Perl_deprecate_old(pTHX_ const char *s) |
12bcd1a6 PM |
520 | { |
521 | /* This function should NOT be called for any new deprecated warnings */ | |
522 | /* Use Perl_deprecate instead */ | |
523 | /* */ | |
524 | /* It is here to maintain backward compatibility with the pre-5.8 */ | |
525 | /* warnings category hierarchy. The "deprecated" category used to */ | |
526 | /* live under the "syntax" category. It is now a top-level category */ | |
527 | /* in its own right. */ | |
528 | ||
529 | if (ckWARN2(WARN_DEPRECATED, WARN_SYNTAX)) | |
bfed75c6 | 530 | Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX), |
12bcd1a6 PM |
531 | "Use of %s is deprecated", s); |
532 | } | |
533 | ||
ffb4593c | 534 | /* |
9cbb5ea2 GS |
535 | * experimental text filters for win32 carriage-returns, utf16-to-utf8 and |
536 | * utf16-to-utf8-reversed. | |
ffb4593c NT |
537 | */ |
538 | ||
c39cd008 GS |
539 | #ifdef PERL_CR_FILTER |
540 | static void | |
541 | strip_return(SV *sv) | |
542 | { | |
95a20fc0 | 543 | register const char *s = SvPVX_const(sv); |
9d4ba2ae | 544 | register const char * const e = s + SvCUR(sv); |
c39cd008 GS |
545 | /* outer loop optimized to do nothing if there are no CR-LFs */ |
546 | while (s < e) { | |
547 | if (*s++ == '\r' && *s == '\n') { | |
548 | /* hit a CR-LF, need to copy the rest */ | |
549 | register char *d = s - 1; | |
550 | *d++ = *s++; | |
551 | while (s < e) { | |
552 | if (*s == '\r' && s[1] == '\n') | |
553 | s++; | |
554 | *d++ = *s++; | |
555 | } | |
556 | SvCUR(sv) -= s - d; | |
557 | return; | |
558 | } | |
559 | } | |
560 | } | |
a868473f | 561 | |
76e3520e | 562 | STATIC I32 |
c39cd008 | 563 | S_cr_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
a868473f | 564 | { |
f54cb97a | 565 | const I32 count = FILTER_READ(idx+1, sv, maxlen); |
c39cd008 GS |
566 | if (count > 0 && !maxlen) |
567 | strip_return(sv); | |
568 | return count; | |
a868473f NIS |
569 | } |
570 | #endif | |
571 | ||
ffb4593c NT |
572 | /* |
573 | * Perl_lex_start | |
9cbb5ea2 GS |
574 | * Initialize variables. Uses the Perl save_stack to save its state (for |
575 | * recursive calls to the parser). | |
ffb4593c NT |
576 | */ |
577 | ||
a0d0e21e | 578 | void |
864dbfa3 | 579 | Perl_lex_start(pTHX_ SV *line) |
79072805 | 580 | { |
97aff369 | 581 | dVAR; |
cfd0369c | 582 | const char *s; |
8990e307 LW |
583 | STRLEN len; |
584 | ||
3280af22 NIS |
585 | SAVEI32(PL_lex_dojoin); |
586 | SAVEI32(PL_lex_brackets); | |
3280af22 NIS |
587 | SAVEI32(PL_lex_casemods); |
588 | SAVEI32(PL_lex_starts); | |
589 | SAVEI32(PL_lex_state); | |
7766f137 | 590 | SAVEVPTR(PL_lex_inpat); |
3280af22 | 591 | SAVEI32(PL_lex_inwhat); |
5db06880 NC |
592 | #ifdef PERL_MAD |
593 | if (PL_lex_state == LEX_KNOWNEXT) { | |
594 | I32 toke = PL_lasttoke; | |
595 | while (--toke >= 0) { | |
596 | SAVEI32(PL_nexttoke[toke].next_type); | |
597 | SAVEVPTR(PL_nexttoke[toke].next_val); | |
598 | if (PL_madskills) | |
599 | SAVEVPTR(PL_nexttoke[toke].next_mad); | |
600 | } | |
601 | SAVEI32(PL_lasttoke); | |
602 | } | |
603 | if (PL_madskills) { | |
cd81e915 NC |
604 | SAVESPTR(PL_thistoken); |
605 | SAVESPTR(PL_thiswhite); | |
606 | SAVESPTR(PL_nextwhite); | |
607 | SAVESPTR(PL_thisopen); | |
608 | SAVESPTR(PL_thisclose); | |
609 | SAVESPTR(PL_thisstuff); | |
610 | SAVEVPTR(PL_thismad); | |
611 | SAVEI32(PL_realtokenstart); | |
612 | SAVEI32(PL_faketokens); | |
613 | } | |
614 | SAVEI32(PL_curforce); | |
5db06880 | 615 | #else |
18b09519 GS |
616 | if (PL_lex_state == LEX_KNOWNEXT) { |
617 | I32 toke = PL_nexttoke; | |
618 | while (--toke >= 0) { | |
619 | SAVEI32(PL_nexttype[toke]); | |
620 | SAVEVPTR(PL_nextval[toke]); | |
621 | } | |
622 | SAVEI32(PL_nexttoke); | |
18b09519 | 623 | } |
5db06880 | 624 | #endif |
57843af0 | 625 | SAVECOPLINE(PL_curcop); |
3280af22 NIS |
626 | SAVEPPTR(PL_bufptr); |
627 | SAVEPPTR(PL_bufend); | |
628 | SAVEPPTR(PL_oldbufptr); | |
629 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
630 | SAVEPPTR(PL_last_lop); |
631 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
632 | SAVEPPTR(PL_linestart); |
633 | SAVESPTR(PL_linestr); | |
8edd5f42 RGS |
634 | SAVEGENERICPV(PL_lex_brackstack); |
635 | SAVEGENERICPV(PL_lex_casestack); | |
c76ac1ee | 636 | SAVEDESTRUCTOR_X(restore_rsfp, PL_rsfp); |
3280af22 NIS |
637 | SAVESPTR(PL_lex_stuff); |
638 | SAVEI32(PL_lex_defer); | |
09bef843 | 639 | SAVEI32(PL_sublex_info.sub_inwhat); |
3280af22 | 640 | SAVESPTR(PL_lex_repl); |
bebdddfc GS |
641 | SAVEINT(PL_expect); |
642 | SAVEINT(PL_lex_expect); | |
3280af22 NIS |
643 | |
644 | PL_lex_state = LEX_NORMAL; | |
645 | PL_lex_defer = 0; | |
646 | PL_expect = XSTATE; | |
647 | PL_lex_brackets = 0; | |
a02a5408 JC |
648 | Newx(PL_lex_brackstack, 120, char); |
649 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
650 | PL_lex_casemods = 0; |
651 | *PL_lex_casestack = '\0'; | |
652 | PL_lex_dojoin = 0; | |
653 | PL_lex_starts = 0; | |
a0714e2c SS |
654 | PL_lex_stuff = NULL; |
655 | PL_lex_repl = NULL; | |
3280af22 | 656 | PL_lex_inpat = 0; |
5db06880 NC |
657 | #ifdef PERL_MAD |
658 | PL_lasttoke = 0; | |
659 | #else | |
76be56bc | 660 | PL_nexttoke = 0; |
5db06880 | 661 | #endif |
3280af22 | 662 | PL_lex_inwhat = 0; |
09bef843 | 663 | PL_sublex_info.sub_inwhat = 0; |
3280af22 NIS |
664 | PL_linestr = line; |
665 | if (SvREADONLY(PL_linestr)) | |
666 | PL_linestr = sv_2mortal(newSVsv(PL_linestr)); | |
cfd0369c | 667 | s = SvPV_const(PL_linestr, len); |
6f27f9a7 | 668 | if (!len || s[len-1] != ';') { |
3280af22 NIS |
669 | if (!(SvFLAGS(PL_linestr) & SVs_TEMP)) |
670 | PL_linestr = sv_2mortal(newSVsv(PL_linestr)); | |
396482e1 | 671 | sv_catpvs(PL_linestr, "\n;"); |
8990e307 | 672 | } |
3280af22 NIS |
673 | SvTEMP_off(PL_linestr); |
674 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
675 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); | |
bd61b366 | 676 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 677 | PL_rsfp = 0; |
79072805 | 678 | } |
a687059c | 679 | |
ffb4593c NT |
680 | /* |
681 | * Perl_lex_end | |
9cbb5ea2 GS |
682 | * Finalizer for lexing operations. Must be called when the parser is |
683 | * done with the lexer. | |
ffb4593c NT |
684 | */ |
685 | ||
463ee0b2 | 686 | void |
864dbfa3 | 687 | Perl_lex_end(pTHX) |
463ee0b2 | 688 | { |
97aff369 | 689 | dVAR; |
3280af22 | 690 | PL_doextract = FALSE; |
463ee0b2 LW |
691 | } |
692 | ||
ffb4593c NT |
693 | /* |
694 | * S_incline | |
695 | * This subroutine has nothing to do with tilting, whether at windmills | |
696 | * or pinball tables. Its name is short for "increment line". It | |
57843af0 | 697 | * increments the current line number in CopLINE(PL_curcop) and checks |
ffb4593c | 698 | * to see whether the line starts with a comment of the form |
9cbb5ea2 GS |
699 | * # line 500 "foo.pm" |
700 | * If so, it sets the current line number and file to the values in the comment. | |
ffb4593c NT |
701 | */ |
702 | ||
76e3520e | 703 | STATIC void |
cea2e8a9 | 704 | S_incline(pTHX_ char *s) |
463ee0b2 | 705 | { |
97aff369 | 706 | dVAR; |
463ee0b2 LW |
707 | char *t; |
708 | char *n; | |
73659bf1 | 709 | char *e; |
463ee0b2 | 710 | char ch; |
463ee0b2 | 711 | |
57843af0 | 712 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
713 | if (*s++ != '#') |
714 | return; | |
d4c19fe8 AL |
715 | while (SPACE_OR_TAB(*s)) |
716 | s++; | |
73659bf1 GS |
717 | if (strnEQ(s, "line", 4)) |
718 | s += 4; | |
719 | else | |
720 | return; | |
084592ab | 721 | if (SPACE_OR_TAB(*s)) |
73659bf1 | 722 | s++; |
4e553d73 | 723 | else |
73659bf1 | 724 | return; |
d4c19fe8 AL |
725 | while (SPACE_OR_TAB(*s)) |
726 | s++; | |
463ee0b2 LW |
727 | if (!isDIGIT(*s)) |
728 | return; | |
d4c19fe8 | 729 | |
463ee0b2 LW |
730 | n = s; |
731 | while (isDIGIT(*s)) | |
732 | s++; | |
bf4acbe4 | 733 | while (SPACE_OR_TAB(*s)) |
463ee0b2 | 734 | s++; |
73659bf1 | 735 | if (*s == '"' && (t = strchr(s+1, '"'))) { |
463ee0b2 | 736 | s++; |
73659bf1 GS |
737 | e = t + 1; |
738 | } | |
463ee0b2 | 739 | else { |
463ee0b2 | 740 | for (t = s; !isSPACE(*t); t++) ; |
73659bf1 | 741 | e = t; |
463ee0b2 | 742 | } |
bf4acbe4 | 743 | while (SPACE_OR_TAB(*e) || *e == '\r' || *e == '\f') |
73659bf1 GS |
744 | e++; |
745 | if (*e != '\n' && *e != '\0') | |
746 | return; /* false alarm */ | |
747 | ||
463ee0b2 LW |
748 | ch = *t; |
749 | *t = '\0'; | |
f4dd75d9 | 750 | if (t - s > 0) { |
8a5ee598 | 751 | #ifndef USE_ITHREADS |
c4420975 | 752 | const char * const cf = CopFILE(PL_curcop); |
42d9b98d NC |
753 | STRLEN tmplen = cf ? strlen(cf) : 0; |
754 | if (tmplen > 7 && strnEQ(cf, "(eval ", 6)) { | |
e66cf94c RGS |
755 | /* must copy *{"::_<(eval N)[oldfilename:L]"} |
756 | * to *{"::_<newfilename"} */ | |
757 | char smallbuf[256], smallbuf2[256]; | |
758 | char *tmpbuf, *tmpbuf2; | |
8a5ee598 | 759 | GV **gvp, *gv2; |
e66cf94c RGS |
760 | STRLEN tmplen2 = strlen(s); |
761 | if (tmplen + 3 < sizeof smallbuf) | |
762 | tmpbuf = smallbuf; | |
763 | else | |
764 | Newx(tmpbuf, tmplen + 3, char); | |
765 | if (tmplen2 + 3 < sizeof smallbuf2) | |
766 | tmpbuf2 = smallbuf2; | |
767 | else | |
768 | Newx(tmpbuf2, tmplen2 + 3, char); | |
769 | tmpbuf[0] = tmpbuf2[0] = '_'; | |
770 | tmpbuf[1] = tmpbuf2[1] = '<'; | |
771 | memcpy(tmpbuf + 2, cf, ++tmplen); | |
772 | memcpy(tmpbuf2 + 2, s, ++tmplen2); | |
773 | ++tmplen; ++tmplen2; | |
8a5ee598 RGS |
774 | gvp = (GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, FALSE); |
775 | if (gvp) { | |
776 | gv2 = *(GV**)hv_fetch(PL_defstash, tmpbuf2, tmplen2, TRUE); | |
777 | if (!isGV(gv2)) | |
778 | gv_init(gv2, PL_defstash, tmpbuf2, tmplen2, FALSE); | |
779 | /* adjust ${"::_<newfilename"} to store the new file name */ | |
780 | GvSV(gv2) = newSVpvn(tmpbuf2 + 2, tmplen2 - 2); | |
781 | GvHV(gv2) = (HV*)SvREFCNT_inc(GvHV(*gvp)); | |
782 | GvAV(gv2) = (AV*)SvREFCNT_inc(GvAV(*gvp)); | |
783 | } | |
e66cf94c RGS |
784 | if (tmpbuf != smallbuf) Safefree(tmpbuf); |
785 | if (tmpbuf2 != smallbuf2) Safefree(tmpbuf2); | |
786 | } | |
8a5ee598 | 787 | #endif |
05ec9bb3 | 788 | CopFILE_free(PL_curcop); |
57843af0 | 789 | CopFILE_set(PL_curcop, s); |
f4dd75d9 | 790 | } |
463ee0b2 | 791 | *t = ch; |
57843af0 | 792 | CopLINE_set(PL_curcop, atoi(n)-1); |
463ee0b2 LW |
793 | } |
794 | ||
29595ff2 | 795 | #ifdef PERL_MAD |
cd81e915 | 796 | /* skip space before PL_thistoken */ |
29595ff2 NC |
797 | |
798 | STATIC char * | |
799 | S_skipspace0(pTHX_ register char *s) | |
800 | { | |
801 | s = skipspace(s); | |
802 | if (!PL_madskills) | |
803 | return s; | |
cd81e915 NC |
804 | if (PL_skipwhite) { |
805 | if (!PL_thiswhite) | |
806 | PL_thiswhite = newSVpvn("",0); | |
807 | sv_catsv(PL_thiswhite, PL_skipwhite); | |
808 | sv_free(PL_skipwhite); | |
809 | PL_skipwhite = 0; | |
810 | } | |
811 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
29595ff2 NC |
812 | return s; |
813 | } | |
814 | ||
cd81e915 | 815 | /* skip space after PL_thistoken */ |
29595ff2 NC |
816 | |
817 | STATIC char * | |
818 | S_skipspace1(pTHX_ register char *s) | |
819 | { | |
d4c19fe8 | 820 | const char *start = s; |
29595ff2 NC |
821 | I32 startoff = start - SvPVX(PL_linestr); |
822 | ||
823 | s = skipspace(s); | |
824 | if (!PL_madskills) | |
825 | return s; | |
826 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 827 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 828 | const char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
829 | PL_thistoken = newSVpvn(tstart, start - tstart); |
830 | } | |
831 | PL_realtokenstart = -1; | |
832 | if (PL_skipwhite) { | |
833 | if (!PL_nextwhite) | |
834 | PL_nextwhite = newSVpvn("",0); | |
835 | sv_catsv(PL_nextwhite, PL_skipwhite); | |
836 | sv_free(PL_skipwhite); | |
837 | PL_skipwhite = 0; | |
29595ff2 NC |
838 | } |
839 | return s; | |
840 | } | |
841 | ||
842 | STATIC char * | |
843 | S_skipspace2(pTHX_ register char *s, SV **svp) | |
844 | { | |
845 | char *start = s; | |
846 | I32 bufptroff = PL_bufptr - SvPVX(PL_linestr); | |
847 | I32 startoff = start - SvPVX(PL_linestr); | |
848 | s = skipspace(s); | |
849 | PL_bufptr = SvPVX(PL_linestr) + bufptroff; | |
850 | if (!PL_madskills || !svp) | |
851 | return s; | |
852 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 853 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 854 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
855 | PL_thistoken = newSVpvn(tstart, start - tstart); |
856 | PL_realtokenstart = -1; | |
29595ff2 | 857 | } |
cd81e915 | 858 | if (PL_skipwhite) { |
29595ff2 NC |
859 | if (!*svp) |
860 | *svp = newSVpvn("",0); | |
cd81e915 NC |
861 | sv_setsv(*svp, PL_skipwhite); |
862 | sv_free(PL_skipwhite); | |
863 | PL_skipwhite = 0; | |
29595ff2 NC |
864 | } |
865 | ||
866 | return s; | |
867 | } | |
868 | #endif | |
869 | ||
ffb4593c NT |
870 | /* |
871 | * S_skipspace | |
872 | * Called to gobble the appropriate amount and type of whitespace. | |
873 | * Skips comments as well. | |
874 | */ | |
875 | ||
76e3520e | 876 | STATIC char * |
cea2e8a9 | 877 | S_skipspace(pTHX_ register char *s) |
a687059c | 878 | { |
97aff369 | 879 | dVAR; |
5db06880 NC |
880 | #ifdef PERL_MAD |
881 | int curoff; | |
882 | int startoff = s - SvPVX(PL_linestr); | |
883 | ||
cd81e915 NC |
884 | if (PL_skipwhite) { |
885 | sv_free(PL_skipwhite); | |
886 | PL_skipwhite = 0; | |
5db06880 NC |
887 | } |
888 | #endif | |
889 | ||
3280af22 | 890 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
bf4acbe4 | 891 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
463ee0b2 | 892 | s++; |
5db06880 NC |
893 | #ifdef PERL_MAD |
894 | goto done; | |
895 | #else | |
463ee0b2 | 896 | return s; |
5db06880 | 897 | #endif |
463ee0b2 LW |
898 | } |
899 | for (;;) { | |
fd049845 | 900 | STRLEN prevlen; |
09bef843 | 901 | SSize_t oldprevlen, oldoldprevlen; |
9c5ffd7c | 902 | SSize_t oldloplen = 0, oldunilen = 0; |
60e6418e GS |
903 | while (s < PL_bufend && isSPACE(*s)) { |
904 | if (*s++ == '\n' && PL_in_eval && !PL_rsfp) | |
905 | incline(s); | |
906 | } | |
ffb4593c NT |
907 | |
908 | /* comment */ | |
3280af22 NIS |
909 | if (s < PL_bufend && *s == '#') { |
910 | while (s < PL_bufend && *s != '\n') | |
463ee0b2 | 911 | s++; |
60e6418e | 912 | if (s < PL_bufend) { |
463ee0b2 | 913 | s++; |
60e6418e GS |
914 | if (PL_in_eval && !PL_rsfp) { |
915 | incline(s); | |
916 | continue; | |
917 | } | |
918 | } | |
463ee0b2 | 919 | } |
ffb4593c NT |
920 | |
921 | /* only continue to recharge the buffer if we're at the end | |
922 | * of the buffer, we're not reading from a source filter, and | |
923 | * we're in normal lexing mode | |
924 | */ | |
09bef843 SB |
925 | if (s < PL_bufend || !PL_rsfp || PL_sublex_info.sub_inwhat || |
926 | PL_lex_state == LEX_FORMLINE) | |
5db06880 NC |
927 | #ifdef PERL_MAD |
928 | goto done; | |
929 | #else | |
463ee0b2 | 930 | return s; |
5db06880 | 931 | #endif |
ffb4593c NT |
932 | |
933 | /* try to recharge the buffer */ | |
5db06880 NC |
934 | #ifdef PERL_MAD |
935 | curoff = s - SvPVX(PL_linestr); | |
936 | #endif | |
937 | ||
9cbb5ea2 | 938 | if ((s = filter_gets(PL_linestr, PL_rsfp, |
bd61b366 | 939 | (prevlen = SvCUR(PL_linestr)))) == NULL) |
9cbb5ea2 | 940 | { |
5db06880 NC |
941 | #ifdef PERL_MAD |
942 | if (PL_madskills && curoff != startoff) { | |
cd81e915 NC |
943 | if (!PL_skipwhite) |
944 | PL_skipwhite = newSVpvn("",0); | |
945 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, | |
5db06880 NC |
946 | curoff - startoff); |
947 | } | |
948 | ||
949 | /* mustn't throw out old stuff yet if madpropping */ | |
950 | SvCUR(PL_linestr) = curoff; | |
951 | s = SvPVX(PL_linestr) + curoff; | |
952 | *s = 0; | |
953 | if (curoff && s[-1] == '\n') | |
954 | s[-1] = ' '; | |
955 | #endif | |
956 | ||
9cbb5ea2 | 957 | /* end of file. Add on the -p or -n magic */ |
cd81e915 | 958 | /* XXX these shouldn't really be added here, can't set PL_faketokens */ |
01a19ab0 | 959 | if (PL_minus_p) { |
5db06880 NC |
960 | #ifdef PERL_MAD |
961 | sv_catpv(PL_linestr, | |
962 | ";}continue{print or die qq(-p destination: $!\\n);}"); | |
963 | #else | |
01a19ab0 NC |
964 | sv_setpv(PL_linestr, |
965 | ";}continue{print or die qq(-p destination: $!\\n);}"); | |
5db06880 | 966 | #endif |
3280af22 | 967 | PL_minus_n = PL_minus_p = 0; |
a0d0e21e | 968 | } |
01a19ab0 | 969 | else if (PL_minus_n) { |
5db06880 NC |
970 | #ifdef PERL_MAD |
971 | sv_catpvn(PL_linestr, ";}", 2); | |
972 | #else | |
01a19ab0 | 973 | sv_setpvn(PL_linestr, ";}", 2); |
5db06880 | 974 | #endif |
01a19ab0 NC |
975 | PL_minus_n = 0; |
976 | } | |
a0d0e21e | 977 | else |
5db06880 NC |
978 | #ifdef PERL_MAD |
979 | sv_catpvn(PL_linestr,";", 1); | |
980 | #else | |
4147a61b | 981 | sv_setpvn(PL_linestr,";", 1); |
5db06880 | 982 | #endif |
ffb4593c NT |
983 | |
984 | /* reset variables for next time we lex */ | |
9cbb5ea2 | 985 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart |
89122651 NC |
986 | = SvPVX(PL_linestr) |
987 | #ifdef PERL_MAD | |
988 | + curoff | |
989 | #endif | |
990 | ; | |
3280af22 | 991 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 992 | PL_last_lop = PL_last_uni = NULL; |
ffb4593c NT |
993 | |
994 | /* Close the filehandle. Could be from -P preprocessor, | |
995 | * STDIN, or a regular file. If we were reading code from | |
996 | * STDIN (because the commandline held no -e or filename) | |
997 | * then we don't close it, we reset it so the code can | |
998 | * read from STDIN too. | |
999 | */ | |
1000 | ||
3280af22 NIS |
1001 | if (PL_preprocess && !PL_in_eval) |
1002 | (void)PerlProc_pclose(PL_rsfp); | |
1003 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) | |
1004 | PerlIO_clearerr(PL_rsfp); | |
8990e307 | 1005 | else |
3280af22 | 1006 | (void)PerlIO_close(PL_rsfp); |
4608196e | 1007 | PL_rsfp = NULL; |
463ee0b2 LW |
1008 | return s; |
1009 | } | |
ffb4593c NT |
1010 | |
1011 | /* not at end of file, so we only read another line */ | |
09bef843 SB |
1012 | /* make corresponding updates to old pointers, for yyerror() */ |
1013 | oldprevlen = PL_oldbufptr - PL_bufend; | |
1014 | oldoldprevlen = PL_oldoldbufptr - PL_bufend; | |
1015 | if (PL_last_uni) | |
1016 | oldunilen = PL_last_uni - PL_bufend; | |
1017 | if (PL_last_lop) | |
1018 | oldloplen = PL_last_lop - PL_bufend; | |
3280af22 NIS |
1019 | PL_linestart = PL_bufptr = s + prevlen; |
1020 | PL_bufend = s + SvCUR(PL_linestr); | |
1021 | s = PL_bufptr; | |
09bef843 SB |
1022 | PL_oldbufptr = s + oldprevlen; |
1023 | PL_oldoldbufptr = s + oldoldprevlen; | |
1024 | if (PL_last_uni) | |
1025 | PL_last_uni = s + oldunilen; | |
1026 | if (PL_last_lop) | |
1027 | PL_last_lop = s + oldloplen; | |
a0d0e21e | 1028 | incline(s); |
ffb4593c NT |
1029 | |
1030 | /* debugger active and we're not compiling the debugger code, | |
1031 | * so store the line into the debugger's array of lines | |
1032 | */ | |
3280af22 | 1033 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
561b68a9 | 1034 | SV * const sv = newSV(0); |
8990e307 LW |
1035 | |
1036 | sv_upgrade(sv, SVt_PVMG); | |
3280af22 | 1037 | sv_setpvn(sv,PL_bufptr,PL_bufend-PL_bufptr); |
0ac0412a | 1038 | (void)SvIOK_on(sv); |
45977657 | 1039 | SvIV_set(sv, 0); |
36c7798d | 1040 | av_store(CopFILEAVx(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
8990e307 | 1041 | } |
463ee0b2 | 1042 | } |
5db06880 NC |
1043 | |
1044 | #ifdef PERL_MAD | |
1045 | done: | |
1046 | if (PL_madskills) { | |
cd81e915 NC |
1047 | if (!PL_skipwhite) |
1048 | PL_skipwhite = newSVpvn("",0); | |
5db06880 NC |
1049 | curoff = s - SvPVX(PL_linestr); |
1050 | if (curoff - startoff) | |
cd81e915 | 1051 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, |
5db06880 NC |
1052 | curoff - startoff); |
1053 | } | |
1054 | return s; | |
1055 | #endif | |
a687059c | 1056 | } |
378cc40b | 1057 | |
ffb4593c NT |
1058 | /* |
1059 | * S_check_uni | |
1060 | * Check the unary operators to ensure there's no ambiguity in how they're | |
1061 | * used. An ambiguous piece of code would be: | |
1062 | * rand + 5 | |
1063 | * This doesn't mean rand() + 5. Because rand() is a unary operator, | |
1064 | * the +5 is its argument. | |
1065 | */ | |
1066 | ||
76e3520e | 1067 | STATIC void |
cea2e8a9 | 1068 | S_check_uni(pTHX) |
ba106d47 | 1069 | { |
97aff369 | 1070 | dVAR; |
d4c19fe8 AL |
1071 | const char *s; |
1072 | const char *t; | |
2f3197b3 | 1073 | |
3280af22 | 1074 | if (PL_oldoldbufptr != PL_last_uni) |
2f3197b3 | 1075 | return; |
3280af22 NIS |
1076 | while (isSPACE(*PL_last_uni)) |
1077 | PL_last_uni++; | |
d4c19fe8 AL |
1078 | for (s = PL_last_uni; isALNUM_lazy_if(s,UTF) || *s == '-'; s++) |
1079 | /**/; | |
3280af22 | 1080 | if ((t = strchr(s, '(')) && t < PL_bufptr) |
a0d0e21e | 1081 | return; |
6136c704 | 1082 | |
0453d815 | 1083 | if (ckWARN_d(WARN_AMBIGUOUS)){ |
9014280d | 1084 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
32d45c1d NC |
1085 | "Warning: Use of \"%.*s\" without parentheses is ambiguous", |
1086 | (int)(s - PL_last_uni), PL_last_uni); | |
0453d815 | 1087 | } |
2f3197b3 LW |
1088 | } |
1089 | ||
ffb4593c NT |
1090 | /* |
1091 | * LOP : macro to build a list operator. Its behaviour has been replaced | |
1092 | * with a subroutine, S_lop() for which LOP is just another name. | |
1093 | */ | |
1094 | ||
a0d0e21e LW |
1095 | #define LOP(f,x) return lop(f,x,s) |
1096 | ||
ffb4593c NT |
1097 | /* |
1098 | * S_lop | |
1099 | * Build a list operator (or something that might be one). The rules: | |
1100 | * - if we have a next token, then it's a list operator [why?] | |
1101 | * - if the next thing is an opening paren, then it's a function | |
1102 | * - else it's a list operator | |
1103 | */ | |
1104 | ||
76e3520e | 1105 | STATIC I32 |
a0be28da | 1106 | S_lop(pTHX_ I32 f, int x, char *s) |
ffed7fef | 1107 | { |
97aff369 | 1108 | dVAR; |
79072805 | 1109 | yylval.ival = f; |
35c8bce7 | 1110 | CLINE; |
3280af22 NIS |
1111 | PL_expect = x; |
1112 | PL_bufptr = s; | |
1113 | PL_last_lop = PL_oldbufptr; | |
eb160463 | 1114 | PL_last_lop_op = (OPCODE)f; |
5db06880 NC |
1115 | #ifdef PERL_MAD |
1116 | if (PL_lasttoke) | |
1117 | return REPORT(LSTOP); | |
1118 | #else | |
3280af22 | 1119 | if (PL_nexttoke) |
bbf60fe6 | 1120 | return REPORT(LSTOP); |
5db06880 | 1121 | #endif |
79072805 | 1122 | if (*s == '(') |
bbf60fe6 | 1123 | return REPORT(FUNC); |
29595ff2 | 1124 | s = PEEKSPACE(s); |
79072805 | 1125 | if (*s == '(') |
bbf60fe6 | 1126 | return REPORT(FUNC); |
79072805 | 1127 | else |
bbf60fe6 | 1128 | return REPORT(LSTOP); |
79072805 LW |
1129 | } |
1130 | ||
5db06880 NC |
1131 | #ifdef PERL_MAD |
1132 | /* | |
1133 | * S_start_force | |
1134 | * Sets up for an eventual force_next(). start_force(0) basically does | |
1135 | * an unshift, while start_force(-1) does a push. yylex removes items | |
1136 | * on the "pop" end. | |
1137 | */ | |
1138 | ||
1139 | STATIC void | |
1140 | S_start_force(pTHX_ int where) | |
1141 | { | |
1142 | int i; | |
1143 | ||
cd81e915 | 1144 | if (where < 0) /* so people can duplicate start_force(PL_curforce) */ |
5db06880 | 1145 | where = PL_lasttoke; |
cd81e915 NC |
1146 | assert(PL_curforce < 0 || PL_curforce == where); |
1147 | if (PL_curforce != where) { | |
5db06880 NC |
1148 | for (i = PL_lasttoke; i > where; --i) { |
1149 | PL_nexttoke[i] = PL_nexttoke[i-1]; | |
1150 | } | |
1151 | PL_lasttoke++; | |
1152 | } | |
cd81e915 | 1153 | if (PL_curforce < 0) /* in case of duplicate start_force() */ |
5db06880 | 1154 | Zero(&PL_nexttoke[where], 1, NEXTTOKE); |
cd81e915 NC |
1155 | PL_curforce = where; |
1156 | if (PL_nextwhite) { | |
5db06880 NC |
1157 | if (PL_madskills) |
1158 | curmad('^', newSVpvn("",0)); | |
cd81e915 | 1159 | CURMAD('_', PL_nextwhite); |
5db06880 NC |
1160 | } |
1161 | } | |
1162 | ||
1163 | STATIC void | |
1164 | S_curmad(pTHX_ char slot, SV *sv) | |
1165 | { | |
1166 | MADPROP **where; | |
1167 | ||
1168 | if (!sv) | |
1169 | return; | |
cd81e915 NC |
1170 | if (PL_curforce < 0) |
1171 | where = &PL_thismad; | |
5db06880 | 1172 | else |
cd81e915 | 1173 | where = &PL_nexttoke[PL_curforce].next_mad; |
5db06880 | 1174 | |
cd81e915 | 1175 | if (PL_faketokens) |
5db06880 NC |
1176 | sv_setpvn(sv, "", 0); |
1177 | else { | |
1178 | if (!IN_BYTES) { | |
1179 | if (UTF && is_utf8_string((U8*)SvPVX(sv), SvCUR(sv))) | |
1180 | SvUTF8_on(sv); | |
1181 | else if (PL_encoding) { | |
1182 | sv_recode_to_utf8(sv, PL_encoding); | |
1183 | } | |
1184 | } | |
1185 | } | |
1186 | ||
1187 | /* keep a slot open for the head of the list? */ | |
1188 | if (slot != '_' && *where && (*where)->mad_key == '^') { | |
1189 | (*where)->mad_key = slot; | |
1190 | sv_free((*where)->mad_val); | |
1191 | (*where)->mad_val = (void*)sv; | |
1192 | } | |
1193 | else | |
1194 | addmad(newMADsv(slot, sv), where, 0); | |
1195 | } | |
1196 | #else | |
d4c19fe8 AL |
1197 | # define start_force(where) /*EMPTY*/ |
1198 | # define curmad(slot, sv) /*EMPTY*/ | |
5db06880 NC |
1199 | #endif |
1200 | ||
ffb4593c NT |
1201 | /* |
1202 | * S_force_next | |
9cbb5ea2 | 1203 | * When the lexer realizes it knows the next token (for instance, |
ffb4593c | 1204 | * it is reordering tokens for the parser) then it can call S_force_next |
9cbb5ea2 | 1205 | * to know what token to return the next time the lexer is called. Caller |
5db06880 NC |
1206 | * will need to set PL_nextval[] (or PL_nexttoke[].next_val with PERL_MAD), |
1207 | * and possibly PL_expect to ensure the lexer handles the token correctly. | |
ffb4593c NT |
1208 | */ |
1209 | ||
4e553d73 | 1210 | STATIC void |
cea2e8a9 | 1211 | S_force_next(pTHX_ I32 type) |
79072805 | 1212 | { |
97aff369 | 1213 | dVAR; |
5db06880 | 1214 | #ifdef PERL_MAD |
cd81e915 | 1215 | if (PL_curforce < 0) |
5db06880 | 1216 | start_force(PL_lasttoke); |
cd81e915 | 1217 | PL_nexttoke[PL_curforce].next_type = type; |
5db06880 NC |
1218 | if (PL_lex_state != LEX_KNOWNEXT) |
1219 | PL_lex_defer = PL_lex_state; | |
1220 | PL_lex_state = LEX_KNOWNEXT; | |
1221 | PL_lex_expect = PL_expect; | |
cd81e915 | 1222 | PL_curforce = -1; |
5db06880 | 1223 | #else |
3280af22 NIS |
1224 | PL_nexttype[PL_nexttoke] = type; |
1225 | PL_nexttoke++; | |
1226 | if (PL_lex_state != LEX_KNOWNEXT) { | |
1227 | PL_lex_defer = PL_lex_state; | |
1228 | PL_lex_expect = PL_expect; | |
1229 | PL_lex_state = LEX_KNOWNEXT; | |
79072805 | 1230 | } |
5db06880 | 1231 | #endif |
79072805 LW |
1232 | } |
1233 | ||
d0a148a6 NC |
1234 | STATIC SV * |
1235 | S_newSV_maybe_utf8(pTHX_ const char *start, STRLEN len) | |
1236 | { | |
97aff369 | 1237 | dVAR; |
9d4ba2ae | 1238 | SV * const sv = newSVpvn(start,len); |
bfed75c6 | 1239 | if (UTF && !IN_BYTES && is_utf8_string((const U8*)start, len)) |
d0a148a6 NC |
1240 | SvUTF8_on(sv); |
1241 | return sv; | |
1242 | } | |
1243 | ||
ffb4593c NT |
1244 | /* |
1245 | * S_force_word | |
1246 | * When the lexer knows the next thing is a word (for instance, it has | |
1247 | * just seen -> and it knows that the next char is a word char, then | |
1248 | * it calls S_force_word to stick the next word into the PL_next lookahead. | |
1249 | * | |
1250 | * Arguments: | |
b1b65b59 | 1251 | * char *start : buffer position (must be within PL_linestr) |
ffb4593c NT |
1252 | * int token : PL_next will be this type of bare word (e.g., METHOD,WORD) |
1253 | * int check_keyword : if true, Perl checks to make sure the word isn't | |
1254 | * a keyword (do this if the word is a label, e.g. goto FOO) | |
1255 | * int allow_pack : if true, : characters will also be allowed (require, | |
1256 | * use, etc. do this) | |
9cbb5ea2 | 1257 | * int allow_initial_tick : used by the "sub" lexer only. |
ffb4593c NT |
1258 | */ |
1259 | ||
76e3520e | 1260 | STATIC char * |
cea2e8a9 | 1261 | S_force_word(pTHX_ register char *start, int token, int check_keyword, int allow_pack, int allow_initial_tick) |
79072805 | 1262 | { |
97aff369 | 1263 | dVAR; |
463ee0b2 LW |
1264 | register char *s; |
1265 | STRLEN len; | |
4e553d73 | 1266 | |
29595ff2 | 1267 | start = SKIPSPACE1(start); |
463ee0b2 | 1268 | s = start; |
7e2040f0 | 1269 | if (isIDFIRST_lazy_if(s,UTF) || |
a0d0e21e | 1270 | (allow_pack && *s == ':') || |
15f0808c | 1271 | (allow_initial_tick && *s == '\'') ) |
a0d0e21e | 1272 | { |
3280af22 NIS |
1273 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, allow_pack, &len); |
1274 | if (check_keyword && keyword(PL_tokenbuf, len)) | |
463ee0b2 | 1275 | return start; |
cd81e915 | 1276 | start_force(PL_curforce); |
5db06880 NC |
1277 | if (PL_madskills) |
1278 | curmad('X', newSVpvn(start,s-start)); | |
463ee0b2 | 1279 | if (token == METHOD) { |
29595ff2 | 1280 | s = SKIPSPACE1(s); |
463ee0b2 | 1281 | if (*s == '(') |
3280af22 | 1282 | PL_expect = XTERM; |
463ee0b2 | 1283 | else { |
3280af22 | 1284 | PL_expect = XOPERATOR; |
463ee0b2 | 1285 | } |
79072805 | 1286 | } |
9ded7720 | 1287 | NEXTVAL_NEXTTOKE.opval |
d0a148a6 NC |
1288 | = (OP*)newSVOP(OP_CONST,0, |
1289 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
9ded7720 | 1290 | NEXTVAL_NEXTTOKE.opval->op_private |= OPpCONST_BARE; |
79072805 LW |
1291 | force_next(token); |
1292 | } | |
1293 | return s; | |
1294 | } | |
1295 | ||
ffb4593c NT |
1296 | /* |
1297 | * S_force_ident | |
9cbb5ea2 | 1298 | * Called when the lexer wants $foo *foo &foo etc, but the program |
ffb4593c NT |
1299 | * text only contains the "foo" portion. The first argument is a pointer |
1300 | * to the "foo", and the second argument is the type symbol to prefix. | |
1301 | * Forces the next token to be a "WORD". | |
9cbb5ea2 | 1302 | * Creates the symbol if it didn't already exist (via gv_fetchpv()). |
ffb4593c NT |
1303 | */ |
1304 | ||
76e3520e | 1305 | STATIC void |
bfed75c6 | 1306 | S_force_ident(pTHX_ register const char *s, int kind) |
79072805 | 1307 | { |
97aff369 | 1308 | dVAR; |
79072805 | 1309 | if (s && *s) { |
90e5519e NC |
1310 | const STRLEN len = strlen(s); |
1311 | OP* const o = (OP*)newSVOP(OP_CONST, 0, newSVpvn(s, len)); | |
cd81e915 | 1312 | start_force(PL_curforce); |
9ded7720 | 1313 | NEXTVAL_NEXTTOKE.opval = o; |
79072805 | 1314 | force_next(WORD); |
748a9306 | 1315 | if (kind) { |
11343788 | 1316 | o->op_private = OPpCONST_ENTERED; |
55497cff | 1317 | /* XXX see note in pp_entereval() for why we forgo typo |
1318 | warnings if the symbol must be introduced in an eval. | |
1319 | GSAR 96-10-12 */ | |
90e5519e NC |
1320 | gv_fetchpvn_flags(s, len, |
1321 | PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) | |
1322 | : GV_ADD, | |
1323 | kind == '$' ? SVt_PV : | |
1324 | kind == '@' ? SVt_PVAV : | |
1325 | kind == '%' ? SVt_PVHV : | |
a0d0e21e | 1326 | SVt_PVGV |
90e5519e | 1327 | ); |
748a9306 | 1328 | } |
79072805 LW |
1329 | } |
1330 | } | |
1331 | ||
1571675a GS |
1332 | NV |
1333 | Perl_str_to_version(pTHX_ SV *sv) | |
1334 | { | |
1335 | NV retval = 0.0; | |
1336 | NV nshift = 1.0; | |
1337 | STRLEN len; | |
cfd0369c | 1338 | const char *start = SvPV_const(sv,len); |
9d4ba2ae | 1339 | const char * const end = start + len; |
504618e9 | 1340 | const bool utf = SvUTF8(sv) ? TRUE : FALSE; |
1571675a | 1341 | while (start < end) { |
ba210ebe | 1342 | STRLEN skip; |
1571675a GS |
1343 | UV n; |
1344 | if (utf) | |
9041c2e3 | 1345 | n = utf8n_to_uvchr((U8*)start, len, &skip, 0); |
1571675a GS |
1346 | else { |
1347 | n = *(U8*)start; | |
1348 | skip = 1; | |
1349 | } | |
1350 | retval += ((NV)n)/nshift; | |
1351 | start += skip; | |
1352 | nshift *= 1000; | |
1353 | } | |
1354 | return retval; | |
1355 | } | |
1356 | ||
4e553d73 | 1357 | /* |
ffb4593c NT |
1358 | * S_force_version |
1359 | * Forces the next token to be a version number. | |
e759cc13 RGS |
1360 | * If the next token appears to be an invalid version number, (e.g. "v2b"), |
1361 | * and if "guessing" is TRUE, then no new token is created (and the caller | |
1362 | * must use an alternative parsing method). | |
ffb4593c NT |
1363 | */ |
1364 | ||
76e3520e | 1365 | STATIC char * |
e759cc13 | 1366 | S_force_version(pTHX_ char *s, int guessing) |
89bfa8cd | 1367 | { |
97aff369 | 1368 | dVAR; |
5f66b61c | 1369 | OP *version = NULL; |
44dcb63b | 1370 | char *d; |
5db06880 NC |
1371 | #ifdef PERL_MAD |
1372 | I32 startoff = s - SvPVX(PL_linestr); | |
1373 | #endif | |
89bfa8cd | 1374 | |
29595ff2 | 1375 | s = SKIPSPACE1(s); |
89bfa8cd | 1376 | |
44dcb63b | 1377 | d = s; |
dd629d5b | 1378 | if (*d == 'v') |
44dcb63b | 1379 | d++; |
44dcb63b | 1380 | if (isDIGIT(*d)) { |
e759cc13 RGS |
1381 | while (isDIGIT(*d) || *d == '_' || *d == '.') |
1382 | d++; | |
5db06880 NC |
1383 | #ifdef PERL_MAD |
1384 | if (PL_madskills) { | |
cd81e915 | 1385 | start_force(PL_curforce); |
5db06880 NC |
1386 | curmad('X', newSVpvn(s,d-s)); |
1387 | } | |
1388 | #endif | |
9f3d182e | 1389 | if (*d == ';' || isSPACE(*d) || *d == '}' || !*d) { |
dd629d5b | 1390 | SV *ver; |
b73d6f50 | 1391 | s = scan_num(s, &yylval); |
89bfa8cd | 1392 | version = yylval.opval; |
dd629d5b GS |
1393 | ver = cSVOPx(version)->op_sv; |
1394 | if (SvPOK(ver) && !SvNIOK(ver)) { | |
862a34c6 | 1395 | SvUPGRADE(ver, SVt_PVNV); |
9d6ce603 | 1396 | SvNV_set(ver, str_to_version(ver)); |
1571675a | 1397 | SvNOK_on(ver); /* hint that it is a version */ |
44dcb63b | 1398 | } |
89bfa8cd | 1399 | } |
5db06880 NC |
1400 | else if (guessing) { |
1401 | #ifdef PERL_MAD | |
1402 | if (PL_madskills) { | |
cd81e915 NC |
1403 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1404 | PL_nextwhite = 0; | |
5db06880 NC |
1405 | s = SvPVX(PL_linestr) + startoff; |
1406 | } | |
1407 | #endif | |
e759cc13 | 1408 | return s; |
5db06880 | 1409 | } |
89bfa8cd | 1410 | } |
1411 | ||
5db06880 NC |
1412 | #ifdef PERL_MAD |
1413 | if (PL_madskills && !version) { | |
cd81e915 NC |
1414 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1415 | PL_nextwhite = 0; | |
5db06880 NC |
1416 | s = SvPVX(PL_linestr) + startoff; |
1417 | } | |
1418 | #endif | |
89bfa8cd | 1419 | /* NOTE: The parser sees the package name and the VERSION swapped */ |
cd81e915 | 1420 | start_force(PL_curforce); |
9ded7720 | 1421 | NEXTVAL_NEXTTOKE.opval = version; |
4e553d73 | 1422 | force_next(WORD); |
89bfa8cd | 1423 | |
e759cc13 | 1424 | return s; |
89bfa8cd | 1425 | } |
1426 | ||
ffb4593c NT |
1427 | /* |
1428 | * S_tokeq | |
1429 | * Tokenize a quoted string passed in as an SV. It finds the next | |
1430 | * chunk, up to end of string or a backslash. It may make a new | |
1431 | * SV containing that chunk (if HINT_NEW_STRING is on). It also | |
1432 | * turns \\ into \. | |
1433 | */ | |
1434 | ||
76e3520e | 1435 | STATIC SV * |
cea2e8a9 | 1436 | S_tokeq(pTHX_ SV *sv) |
79072805 | 1437 | { |
97aff369 | 1438 | dVAR; |
79072805 LW |
1439 | register char *s; |
1440 | register char *send; | |
1441 | register char *d; | |
b3ac6de7 IZ |
1442 | STRLEN len = 0; |
1443 | SV *pv = sv; | |
79072805 LW |
1444 | |
1445 | if (!SvLEN(sv)) | |
b3ac6de7 | 1446 | goto finish; |
79072805 | 1447 | |
a0d0e21e | 1448 | s = SvPV_force(sv, len); |
21a311ee | 1449 | if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) |
b3ac6de7 | 1450 | goto finish; |
463ee0b2 | 1451 | send = s + len; |
79072805 LW |
1452 | while (s < send && *s != '\\') |
1453 | s++; | |
1454 | if (s == send) | |
b3ac6de7 | 1455 | goto finish; |
79072805 | 1456 | d = s; |
be4731d2 | 1457 | if ( PL_hints & HINT_NEW_STRING ) { |
95a20fc0 | 1458 | pv = sv_2mortal(newSVpvn(SvPVX_const(pv), len)); |
be4731d2 NIS |
1459 | if (SvUTF8(sv)) |
1460 | SvUTF8_on(pv); | |
1461 | } | |
79072805 LW |
1462 | while (s < send) { |
1463 | if (*s == '\\') { | |
a0d0e21e | 1464 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
1465 | s++; /* all that, just for this */ |
1466 | } | |
1467 | *d++ = *s++; | |
1468 | } | |
1469 | *d = '\0'; | |
95a20fc0 | 1470 | SvCUR_set(sv, d - SvPVX_const(sv)); |
b3ac6de7 | 1471 | finish: |
3280af22 | 1472 | if ( PL_hints & HINT_NEW_STRING ) |
b3ac6de7 | 1473 | return new_constant(NULL, 0, "q", sv, pv, "q"); |
79072805 LW |
1474 | return sv; |
1475 | } | |
1476 | ||
ffb4593c NT |
1477 | /* |
1478 | * Now come three functions related to double-quote context, | |
1479 | * S_sublex_start, S_sublex_push, and S_sublex_done. They're used when | |
1480 | * converting things like "\u\Lgnat" into ucfirst(lc("gnat")). They | |
1481 | * interact with PL_lex_state, and create fake ( ... ) argument lists | |
1482 | * to handle functions and concatenation. | |
1483 | * They assume that whoever calls them will be setting up a fake | |
1484 | * join call, because each subthing puts a ',' after it. This lets | |
1485 | * "lower \luPpEr" | |
1486 | * become | |
1487 | * join($, , 'lower ', lcfirst( 'uPpEr', ) ,) | |
1488 | * | |
1489 | * (I'm not sure whether the spurious commas at the end of lcfirst's | |
1490 | * arguments and join's arguments are created or not). | |
1491 | */ | |
1492 | ||
1493 | /* | |
1494 | * S_sublex_start | |
1495 | * Assumes that yylval.ival is the op we're creating (e.g. OP_LCFIRST). | |
1496 | * | |
1497 | * Pattern matching will set PL_lex_op to the pattern-matching op to | |
1498 | * make (we return THING if yylval.ival is OP_NULL, PMFUNC otherwise). | |
1499 | * | |
1500 | * OP_CONST and OP_READLINE are easy--just make the new op and return. | |
1501 | * | |
1502 | * Everything else becomes a FUNC. | |
1503 | * | |
1504 | * Sets PL_lex_state to LEX_INTERPPUSH unless (ival was OP_NULL or we | |
1505 | * had an OP_CONST or OP_READLINE). This just sets us up for a | |
1506 | * call to S_sublex_push(). | |
1507 | */ | |
1508 | ||
76e3520e | 1509 | STATIC I32 |
cea2e8a9 | 1510 | S_sublex_start(pTHX) |
79072805 | 1511 | { |
97aff369 | 1512 | dVAR; |
0d46e09a | 1513 | register const I32 op_type = yylval.ival; |
79072805 LW |
1514 | |
1515 | if (op_type == OP_NULL) { | |
3280af22 | 1516 | yylval.opval = PL_lex_op; |
5f66b61c | 1517 | PL_lex_op = NULL; |
79072805 LW |
1518 | return THING; |
1519 | } | |
1520 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
3280af22 | 1521 | SV *sv = tokeq(PL_lex_stuff); |
b3ac6de7 IZ |
1522 | |
1523 | if (SvTYPE(sv) == SVt_PVIV) { | |
1524 | /* Overloaded constants, nothing fancy: Convert to SVt_PV: */ | |
1525 | STRLEN len; | |
96a5add6 | 1526 | const char * const p = SvPV_const(sv, len); |
f54cb97a | 1527 | SV * const nsv = newSVpvn(p, len); |
01ec43d0 GS |
1528 | if (SvUTF8(sv)) |
1529 | SvUTF8_on(nsv); | |
b3ac6de7 IZ |
1530 | SvREFCNT_dec(sv); |
1531 | sv = nsv; | |
4e553d73 | 1532 | } |
b3ac6de7 | 1533 | yylval.opval = (OP*)newSVOP(op_type, 0, sv); |
a0714e2c | 1534 | PL_lex_stuff = NULL; |
6f33ba73 RGS |
1535 | /* Allow <FH> // "foo" */ |
1536 | if (op_type == OP_READLINE) | |
1537 | PL_expect = XTERMORDORDOR; | |
79072805 LW |
1538 | return THING; |
1539 | } | |
1540 | ||
3280af22 NIS |
1541 | PL_sublex_info.super_state = PL_lex_state; |
1542 | PL_sublex_info.sub_inwhat = op_type; | |
1543 | PL_sublex_info.sub_op = PL_lex_op; | |
1544 | PL_lex_state = LEX_INTERPPUSH; | |
55497cff | 1545 | |
3280af22 NIS |
1546 | PL_expect = XTERM; |
1547 | if (PL_lex_op) { | |
1548 | yylval.opval = PL_lex_op; | |
5f66b61c | 1549 | PL_lex_op = NULL; |
55497cff | 1550 | return PMFUNC; |
1551 | } | |
1552 | else | |
1553 | return FUNC; | |
1554 | } | |
1555 | ||
ffb4593c NT |
1556 | /* |
1557 | * S_sublex_push | |
1558 | * Create a new scope to save the lexing state. The scope will be | |
1559 | * ended in S_sublex_done. Returns a '(', starting the function arguments | |
1560 | * to the uc, lc, etc. found before. | |
1561 | * Sets PL_lex_state to LEX_INTERPCONCAT. | |
1562 | */ | |
1563 | ||
76e3520e | 1564 | STATIC I32 |
cea2e8a9 | 1565 | S_sublex_push(pTHX) |
55497cff | 1566 | { |
27da23d5 | 1567 | dVAR; |
f46d017c | 1568 | ENTER; |
55497cff | 1569 | |
3280af22 NIS |
1570 | PL_lex_state = PL_sublex_info.super_state; |
1571 | SAVEI32(PL_lex_dojoin); | |
1572 | SAVEI32(PL_lex_brackets); | |
3280af22 NIS |
1573 | SAVEI32(PL_lex_casemods); |
1574 | SAVEI32(PL_lex_starts); | |
1575 | SAVEI32(PL_lex_state); | |
7766f137 | 1576 | SAVEVPTR(PL_lex_inpat); |
3280af22 | 1577 | SAVEI32(PL_lex_inwhat); |
57843af0 | 1578 | SAVECOPLINE(PL_curcop); |
3280af22 | 1579 | SAVEPPTR(PL_bufptr); |
8452ff4b | 1580 | SAVEPPTR(PL_bufend); |
3280af22 NIS |
1581 | SAVEPPTR(PL_oldbufptr); |
1582 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
1583 | SAVEPPTR(PL_last_lop); |
1584 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
1585 | SAVEPPTR(PL_linestart); |
1586 | SAVESPTR(PL_linestr); | |
8edd5f42 RGS |
1587 | SAVEGENERICPV(PL_lex_brackstack); |
1588 | SAVEGENERICPV(PL_lex_casestack); | |
3280af22 NIS |
1589 | |
1590 | PL_linestr = PL_lex_stuff; | |
a0714e2c | 1591 | PL_lex_stuff = NULL; |
3280af22 | 1592 | |
9cbb5ea2 GS |
1593 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart |
1594 | = SvPVX(PL_linestr); | |
3280af22 | 1595 | PL_bufend += SvCUR(PL_linestr); |
bd61b366 | 1596 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1597 | SAVEFREESV(PL_linestr); |
1598 | ||
1599 | PL_lex_dojoin = FALSE; | |
1600 | PL_lex_brackets = 0; | |
a02a5408 JC |
1601 | Newx(PL_lex_brackstack, 120, char); |
1602 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
1603 | PL_lex_casemods = 0; |
1604 | *PL_lex_casestack = '\0'; | |
1605 | PL_lex_starts = 0; | |
1606 | PL_lex_state = LEX_INTERPCONCAT; | |
eb160463 | 1607 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 NIS |
1608 | |
1609 | PL_lex_inwhat = PL_sublex_info.sub_inwhat; | |
1610 | if (PL_lex_inwhat == OP_MATCH || PL_lex_inwhat == OP_QR || PL_lex_inwhat == OP_SUBST) | |
1611 | PL_lex_inpat = PL_sublex_info.sub_op; | |
79072805 | 1612 | else |
5f66b61c | 1613 | PL_lex_inpat = NULL; |
79072805 | 1614 | |
55497cff | 1615 | return '('; |
79072805 LW |
1616 | } |
1617 | ||
ffb4593c NT |
1618 | /* |
1619 | * S_sublex_done | |
1620 | * Restores lexer state after a S_sublex_push. | |
1621 | */ | |
1622 | ||
76e3520e | 1623 | STATIC I32 |
cea2e8a9 | 1624 | S_sublex_done(pTHX) |
79072805 | 1625 | { |
27da23d5 | 1626 | dVAR; |
3280af22 | 1627 | if (!PL_lex_starts++) { |
396482e1 | 1628 | SV * const sv = newSVpvs(""); |
9aa983d2 JH |
1629 | if (SvUTF8(PL_linestr)) |
1630 | SvUTF8_on(sv); | |
3280af22 | 1631 | PL_expect = XOPERATOR; |
9aa983d2 | 1632 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
79072805 LW |
1633 | return THING; |
1634 | } | |
1635 | ||
3280af22 NIS |
1636 | if (PL_lex_casemods) { /* oops, we've got some unbalanced parens */ |
1637 | PL_lex_state = LEX_INTERPCASEMOD; | |
cea2e8a9 | 1638 | return yylex(); |
79072805 LW |
1639 | } |
1640 | ||
ffb4593c | 1641 | /* Is there a right-hand side to take care of? (s//RHS/ or tr//RHS/) */ |
3280af22 NIS |
1642 | if (PL_lex_repl && (PL_lex_inwhat == OP_SUBST || PL_lex_inwhat == OP_TRANS)) { |
1643 | PL_linestr = PL_lex_repl; | |
1644 | PL_lex_inpat = 0; | |
1645 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
1646 | PL_bufend += SvCUR(PL_linestr); | |
bd61b366 | 1647 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1648 | SAVEFREESV(PL_linestr); |
1649 | PL_lex_dojoin = FALSE; | |
1650 | PL_lex_brackets = 0; | |
3280af22 NIS |
1651 | PL_lex_casemods = 0; |
1652 | *PL_lex_casestack = '\0'; | |
1653 | PL_lex_starts = 0; | |
25da4f38 | 1654 | if (SvEVALED(PL_lex_repl)) { |
3280af22 NIS |
1655 | PL_lex_state = LEX_INTERPNORMAL; |
1656 | PL_lex_starts++; | |
e9fa98b2 HS |
1657 | /* we don't clear PL_lex_repl here, so that we can check later |
1658 | whether this is an evalled subst; that means we rely on the | |
1659 | logic to ensure sublex_done() is called again only via the | |
1660 | branch (in yylex()) that clears PL_lex_repl, else we'll loop */ | |
79072805 | 1661 | } |
e9fa98b2 | 1662 | else { |
3280af22 | 1663 | PL_lex_state = LEX_INTERPCONCAT; |
a0714e2c | 1664 | PL_lex_repl = NULL; |
e9fa98b2 | 1665 | } |
79072805 | 1666 | return ','; |
ffed7fef LW |
1667 | } |
1668 | else { | |
5db06880 NC |
1669 | #ifdef PERL_MAD |
1670 | if (PL_madskills) { | |
cd81e915 NC |
1671 | if (PL_thiswhite) { |
1672 | if (!PL_endwhite) | |
1673 | PL_endwhite = newSVpvn("",0); | |
1674 | sv_catsv(PL_endwhite, PL_thiswhite); | |
1675 | PL_thiswhite = 0; | |
1676 | } | |
1677 | if (PL_thistoken) | |
1678 | sv_setpvn(PL_thistoken,"",0); | |
5db06880 | 1679 | else |
cd81e915 | 1680 | PL_realtokenstart = -1; |
5db06880 NC |
1681 | } |
1682 | #endif | |
f46d017c | 1683 | LEAVE; |
3280af22 NIS |
1684 | PL_bufend = SvPVX(PL_linestr); |
1685 | PL_bufend += SvCUR(PL_linestr); | |
1686 | PL_expect = XOPERATOR; | |
09bef843 | 1687 | PL_sublex_info.sub_inwhat = 0; |
79072805 | 1688 | return ')'; |
ffed7fef LW |
1689 | } |
1690 | } | |
1691 | ||
02aa26ce NT |
1692 | /* |
1693 | scan_const | |
1694 | ||
1695 | Extracts a pattern, double-quoted string, or transliteration. This | |
1696 | is terrifying code. | |
1697 | ||
3280af22 NIS |
1698 | It looks at lex_inwhat and PL_lex_inpat to find out whether it's |
1699 | processing a pattern (PL_lex_inpat is true), a transliteration | |
02aa26ce NT |
1700 | (lex_inwhat & OP_TRANS is true), or a double-quoted string. |
1701 | ||
9b599b2a GS |
1702 | Returns a pointer to the character scanned up to. Iff this is |
1703 | advanced from the start pointer supplied (ie if anything was | |
1704 | successfully parsed), will leave an OP for the substring scanned | |
1705 | in yylval. Caller must intuit reason for not parsing further | |
1706 | by looking at the next characters herself. | |
1707 | ||
02aa26ce NT |
1708 | In patterns: |
1709 | backslashes: | |
1710 | double-quoted style: \r and \n | |
1711 | regexp special ones: \D \s | |
1712 | constants: \x3 | |
1713 | backrefs: \1 (deprecated in substitution replacements) | |
1714 | case and quoting: \U \Q \E | |
1715 | stops on @ and $, but not for $ as tail anchor | |
1716 | ||
1717 | In transliterations: | |
1718 | characters are VERY literal, except for - not at the start or end | |
1719 | of the string, which indicates a range. scan_const expands the | |
1720 | range to the full set of intermediate characters. | |
1721 | ||
1722 | In double-quoted strings: | |
1723 | backslashes: | |
1724 | double-quoted style: \r and \n | |
1725 | constants: \x3 | |
1726 | backrefs: \1 (deprecated) | |
1727 | case and quoting: \U \Q \E | |
1728 | stops on @ and $ | |
1729 | ||
1730 | scan_const does *not* construct ops to handle interpolated strings. | |
1731 | It stops processing as soon as it finds an embedded $ or @ variable | |
1732 | and leaves it to the caller to work out what's going on. | |
1733 | ||
da6eedaa | 1734 | @ in pattern could be: @foo, @{foo}, @$foo, @'foo, @::foo. |
02aa26ce NT |
1735 | |
1736 | $ in pattern could be $foo or could be tail anchor. Assumption: | |
1737 | it's a tail anchor if $ is the last thing in the string, or if it's | |
1738 | followed by one of ")| \n\t" | |
1739 | ||
1740 | \1 (backreferences) are turned into $1 | |
1741 | ||
1742 | The structure of the code is | |
1743 | while (there's a character to process) { | |
1744 | handle transliteration ranges | |
1745 | skip regexp comments | |
1746 | skip # initiated comments in //x patterns | |
1747 | check for embedded @foo | |
1748 | check for embedded scalars | |
1749 | if (backslash) { | |
1750 | leave intact backslashes from leave (below) | |
1751 | deprecate \1 in strings and sub replacements | |
1752 | handle string-changing backslashes \l \U \Q \E, etc. | |
1753 | switch (what was escaped) { | |
1754 | handle - in a transliteration (becomes a literal -) | |
1755 | handle \132 octal characters | |
1756 | handle 0x15 hex characters | |
1757 | handle \cV (control V) | |
1758 | handle printf backslashes (\f, \r, \n, etc) | |
1759 | } (end switch) | |
1760 | } (end if backslash) | |
1761 | } (end while character to read) | |
4e553d73 | 1762 | |
02aa26ce NT |
1763 | */ |
1764 | ||
76e3520e | 1765 | STATIC char * |
cea2e8a9 | 1766 | S_scan_const(pTHX_ char *start) |
79072805 | 1767 | { |
97aff369 | 1768 | dVAR; |
3280af22 | 1769 | register char *send = PL_bufend; /* end of the constant */ |
561b68a9 | 1770 | SV *sv = newSV(send - start); /* sv for the constant */ |
02aa26ce NT |
1771 | register char *s = start; /* start of the constant */ |
1772 | register char *d = SvPVX(sv); /* destination for copies */ | |
1773 | bool dorange = FALSE; /* are we in a translit range? */ | |
c2e66d9e | 1774 | bool didrange = FALSE; /* did we just finish a range? */ |
2b9d42f0 NIS |
1775 | I32 has_utf8 = FALSE; /* Output constant is UTF8 */ |
1776 | I32 this_utf8 = UTF; /* The source string is assumed to be UTF8 */ | |
012bcf8d | 1777 | UV uv; |
4c3a8340 TS |
1778 | #ifdef EBCDIC |
1779 | UV literal_endpoint = 0; | |
1780 | #endif | |
012bcf8d | 1781 | |
d4c19fe8 | 1782 | const char * const leaveit = /* set of acceptably-backslashed characters */ |
3280af22 | 1783 | PL_lex_inpat |
b6d5fef8 | 1784 | ? "\\.^$@AGZdDwWsSbBpPXC+*?|()-nrtfeaxz0123456789[{]} \t\n\r\f\v#" |
9b599b2a | 1785 | : ""; |
79072805 | 1786 | |
2b9d42f0 NIS |
1787 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
1788 | /* If we are doing a trans and we know we want UTF8 set expectation */ | |
1789 | has_utf8 = PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF); | |
1790 | this_utf8 = PL_sublex_info.sub_op->op_private & (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
1791 | } | |
1792 | ||
1793 | ||
79072805 | 1794 | while (s < send || dorange) { |
02aa26ce | 1795 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 1796 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 1797 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 1798 | if (dorange) { |
1ba5c669 JH |
1799 | I32 i; /* current expanded character */ |
1800 | I32 min; /* first character in range */ | |
1801 | I32 max; /* last character in range */ | |
02aa26ce | 1802 | |
2b9d42f0 | 1803 | if (has_utf8) { |
9d4ba2ae | 1804 | char * const c = (char*)utf8_hop((U8*)d, -1); |
8973db79 JH |
1805 | char *e = d++; |
1806 | while (e-- > c) | |
1807 | *(e + 1) = *e; | |
25716404 | 1808 | *c = (char)UTF_TO_NATIVE(0xff); |
8973db79 JH |
1809 | /* mark the range as done, and continue */ |
1810 | dorange = FALSE; | |
1811 | didrange = TRUE; | |
1812 | continue; | |
1813 | } | |
2b9d42f0 | 1814 | |
95a20fc0 | 1815 | i = d - SvPVX_const(sv); /* remember current offset */ |
9cbb5ea2 GS |
1816 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
1817 | d = SvPVX(sv) + i; /* refresh d after realloc */ | |
02aa26ce NT |
1818 | d -= 2; /* eat the first char and the - */ |
1819 | ||
8ada0baa JH |
1820 | min = (U8)*d; /* first char in range */ |
1821 | max = (U8)d[1]; /* last char in range */ | |
1822 | ||
c2e66d9e | 1823 | if (min > max) { |
01ec43d0 | 1824 | Perl_croak(aTHX_ |
d1573ac7 | 1825 | "Invalid range \"%c-%c\" in transliteration operator", |
1ba5c669 | 1826 | (char)min, (char)max); |
c2e66d9e GS |
1827 | } |
1828 | ||
c7f1f016 | 1829 | #ifdef EBCDIC |
4c3a8340 TS |
1830 | if (literal_endpoint == 2 && |
1831 | ((isLOWER(min) && isLOWER(max)) || | |
1832 | (isUPPER(min) && isUPPER(max)))) { | |
8ada0baa JH |
1833 | if (isLOWER(min)) { |
1834 | for (i = min; i <= max; i++) | |
1835 | if (isLOWER(i)) | |
db42d148 | 1836 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1837 | } else { |
1838 | for (i = min; i <= max; i++) | |
1839 | if (isUPPER(i)) | |
db42d148 | 1840 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1841 | } |
1842 | } | |
1843 | else | |
1844 | #endif | |
1845 | for (i = min; i <= max; i++) | |
eb160463 | 1846 | *d++ = (char)i; |
02aa26ce NT |
1847 | |
1848 | /* mark the range as done, and continue */ | |
79072805 | 1849 | dorange = FALSE; |
01ec43d0 | 1850 | didrange = TRUE; |
4c3a8340 TS |
1851 | #ifdef EBCDIC |
1852 | literal_endpoint = 0; | |
1853 | #endif | |
79072805 | 1854 | continue; |
4e553d73 | 1855 | } |
02aa26ce NT |
1856 | |
1857 | /* range begins (ignore - as first or last char) */ | |
79072805 | 1858 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 1859 | if (didrange) { |
1fafa243 | 1860 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 1861 | } |
2b9d42f0 | 1862 | if (has_utf8) { |
25716404 | 1863 | *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
1864 | s++; |
1865 | continue; | |
1866 | } | |
79072805 LW |
1867 | dorange = TRUE; |
1868 | s++; | |
01ec43d0 GS |
1869 | } |
1870 | else { | |
1871 | didrange = FALSE; | |
4c3a8340 TS |
1872 | #ifdef EBCDIC |
1873 | literal_endpoint = 0; | |
1874 | #endif | |
01ec43d0 | 1875 | } |
79072805 | 1876 | } |
02aa26ce NT |
1877 | |
1878 | /* if we get here, we're not doing a transliteration */ | |
1879 | ||
0f5d15d6 IZ |
1880 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
1881 | except for the last char, which will be done separately. */ | |
3280af22 | 1882 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 | 1883 | if (s[2] == '#') { |
e994fd66 | 1884 | while (s+1 < send && *s != ')') |
db42d148 | 1885 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
155aba94 GS |
1886 | } |
1887 | else if (s[2] == '{' /* This should match regcomp.c */ | |
1888 | || ((s[2] == 'p' || s[2] == '?') && s[3] == '{')) | |
1889 | { | |
cc6b7395 | 1890 | I32 count = 1; |
0f5d15d6 | 1891 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
1892 | char c; |
1893 | ||
d9f97599 GS |
1894 | while (count && (c = *regparse)) { |
1895 | if (c == '\\' && regparse[1]) | |
1896 | regparse++; | |
4e553d73 | 1897 | else if (c == '{') |
cc6b7395 | 1898 | count++; |
4e553d73 | 1899 | else if (c == '}') |
cc6b7395 | 1900 | count--; |
d9f97599 | 1901 | regparse++; |
cc6b7395 | 1902 | } |
e994fd66 | 1903 | if (*regparse != ')') |
5bdf89e7 | 1904 | regparse--; /* Leave one char for continuation. */ |
0f5d15d6 | 1905 | while (s < regparse) |
db42d148 | 1906 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
cc6b7395 | 1907 | } |
748a9306 | 1908 | } |
02aa26ce NT |
1909 | |
1910 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
1911 | else if (*s == '#' && PL_lex_inpat && |
1912 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 | 1913 | while (s+1 < send && *s != '\n') |
db42d148 | 1914 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
748a9306 | 1915 | } |
02aa26ce | 1916 | |
5d1d4326 | 1917 | /* check for embedded arrays |
da6eedaa | 1918 | (@foo, @::foo, @'foo, @{foo}, @$foo, @+, @-) |
5d1d4326 | 1919 | */ |
7e2040f0 | 1920 | else if (*s == '@' && s[1] |
5d1d4326 | 1921 | && (isALNUM_lazy_if(s+1,UTF) || strchr(":'{$+-", s[1]))) |
79072805 | 1922 | break; |
02aa26ce NT |
1923 | |
1924 | /* check for embedded scalars. only stop if we're sure it's a | |
1925 | variable. | |
1926 | */ | |
79072805 | 1927 | else if (*s == '$') { |
3280af22 | 1928 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 1929 | break; |
6002328a | 1930 | if (s + 1 < send && !strchr("()| \r\n\t", s[1])) |
79072805 LW |
1931 | break; /* in regexp, $ might be tail anchor */ |
1932 | } | |
02aa26ce | 1933 | |
2b9d42f0 NIS |
1934 | /* End of else if chain - OP_TRANS rejoin rest */ |
1935 | ||
02aa26ce | 1936 | /* backslashes */ |
79072805 LW |
1937 | if (*s == '\\' && s+1 < send) { |
1938 | s++; | |
02aa26ce NT |
1939 | |
1940 | /* some backslashes we leave behind */ | |
c9f97d15 | 1941 | if (*leaveit && *s && strchr(leaveit, *s)) { |
db42d148 NIS |
1942 | *d++ = NATIVE_TO_NEED(has_utf8,'\\'); |
1943 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
79072805 LW |
1944 | continue; |
1945 | } | |
02aa26ce NT |
1946 | |
1947 | /* deprecate \1 in strings and substitution replacements */ | |
3280af22 | 1948 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 1949 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 1950 | { |
599cee73 | 1951 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 1952 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s); |
79072805 LW |
1953 | *--s = '$'; |
1954 | break; | |
1955 | } | |
02aa26ce NT |
1956 | |
1957 | /* string-change backslash escapes */ | |
3280af22 | 1958 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
1959 | --s; |
1960 | break; | |
1961 | } | |
02aa26ce NT |
1962 | |
1963 | /* if we get here, it's either a quoted -, or a digit */ | |
79072805 | 1964 | switch (*s) { |
02aa26ce NT |
1965 | |
1966 | /* quoted - in transliterations */ | |
79072805 | 1967 | case '-': |
3280af22 | 1968 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
1969 | *d++ = *s++; |
1970 | continue; | |
1971 | } | |
1972 | /* FALL THROUGH */ | |
1973 | default: | |
11b8faa4 | 1974 | { |
041457d9 DM |
1975 | if (isALNUM(*s) && |
1976 | *s != '_' && | |
1977 | ckWARN(WARN_MISC)) | |
9014280d | 1978 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
11b8faa4 JH |
1979 | "Unrecognized escape \\%c passed through", |
1980 | *s); | |
1981 | /* default action is to copy the quoted character */ | |
f9a63242 | 1982 | goto default_action; |
11b8faa4 | 1983 | } |
02aa26ce NT |
1984 | |
1985 | /* \132 indicates an octal constant */ | |
79072805 LW |
1986 | case '0': case '1': case '2': case '3': |
1987 | case '4': case '5': case '6': case '7': | |
ba210ebe | 1988 | { |
53305cf1 NC |
1989 | I32 flags = 0; |
1990 | STRLEN len = 3; | |
1991 | uv = grok_oct(s, &len, &flags, NULL); | |
ba210ebe JH |
1992 | s += len; |
1993 | } | |
012bcf8d | 1994 | goto NUM_ESCAPE_INSERT; |
02aa26ce NT |
1995 | |
1996 | /* \x24 indicates a hex constant */ | |
79072805 | 1997 | case 'x': |
a0ed51b3 LW |
1998 | ++s; |
1999 | if (*s == '{') { | |
9d4ba2ae | 2000 | char* const e = strchr(s, '}'); |
a4c04bdc NC |
2001 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
2002 | PERL_SCAN_DISALLOW_PREFIX; | |
53305cf1 | 2003 | STRLEN len; |
355860ce | 2004 | |
53305cf1 | 2005 | ++s; |
adaeee49 | 2006 | if (!e) { |
a0ed51b3 | 2007 | yyerror("Missing right brace on \\x{}"); |
355860ce | 2008 | continue; |
ba210ebe | 2009 | } |
53305cf1 NC |
2010 | len = e - s; |
2011 | uv = grok_hex(s, &len, &flags, NULL); | |
ba210ebe | 2012 | s = e + 1; |
a0ed51b3 LW |
2013 | } |
2014 | else { | |
ba210ebe | 2015 | { |
53305cf1 | 2016 | STRLEN len = 2; |
a4c04bdc | 2017 | I32 flags = PERL_SCAN_DISALLOW_PREFIX; |
53305cf1 | 2018 | uv = grok_hex(s, &len, &flags, NULL); |
ba210ebe JH |
2019 | s += len; |
2020 | } | |
012bcf8d GS |
2021 | } |
2022 | ||
2023 | NUM_ESCAPE_INSERT: | |
2024 | /* Insert oct or hex escaped character. | |
301d3d20 | 2025 | * There will always enough room in sv since such |
db42d148 | 2026 | * escapes will be longer than any UTF-8 sequence |
301d3d20 | 2027 | * they can end up as. */ |
ba7cea30 | 2028 | |
c7f1f016 NIS |
2029 | /* We need to map to chars to ASCII before doing the tests |
2030 | to cover EBCDIC | |
2031 | */ | |
c4d5f83a | 2032 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(uv))) { |
9aa983d2 | 2033 | if (!has_utf8 && uv > 255) { |
301d3d20 JH |
2034 | /* Might need to recode whatever we have |
2035 | * accumulated so far if it contains any | |
2036 | * hibit chars. | |
2037 | * | |
2038 | * (Can't we keep track of that and avoid | |
2039 | * this rescan? --jhi) | |
012bcf8d | 2040 | */ |
c7f1f016 | 2041 | int hicount = 0; |
63cd0674 NIS |
2042 | U8 *c; |
2043 | for (c = (U8 *) SvPVX(sv); c < (U8 *)d; c++) { | |
c4d5f83a | 2044 | if (!NATIVE_IS_INVARIANT(*c)) { |
012bcf8d | 2045 | hicount++; |
db42d148 | 2046 | } |
012bcf8d | 2047 | } |
63cd0674 | 2048 | if (hicount) { |
9d4ba2ae | 2049 | const STRLEN offset = d - SvPVX_const(sv); |
db42d148 NIS |
2050 | U8 *src, *dst; |
2051 | d = SvGROW(sv, SvLEN(sv) + hicount + 1) + offset; | |
2052 | src = (U8 *)d - 1; | |
2053 | dst = src+hicount; | |
2054 | d += hicount; | |
cfd0369c | 2055 | while (src >= (const U8 *)SvPVX_const(sv)) { |
c4d5f83a | 2056 | if (!NATIVE_IS_INVARIANT(*src)) { |
9d4ba2ae | 2057 | const U8 ch = NATIVE_TO_ASCII(*src); |
eb160463 GS |
2058 | *dst-- = (U8)UTF8_EIGHT_BIT_LO(ch); |
2059 | *dst-- = (U8)UTF8_EIGHT_BIT_HI(ch); | |
012bcf8d GS |
2060 | } |
2061 | else { | |
63cd0674 | 2062 | *dst-- = *src; |
012bcf8d | 2063 | } |
c7f1f016 | 2064 | src--; |
012bcf8d GS |
2065 | } |
2066 | } | |
2067 | } | |
2068 | ||
9aa983d2 | 2069 | if (has_utf8 || uv > 255) { |
9041c2e3 | 2070 | d = (char*)uvchr_to_utf8((U8*)d, uv); |
4e553d73 | 2071 | has_utf8 = TRUE; |
f9a63242 JH |
2072 | if (PL_lex_inwhat == OP_TRANS && |
2073 | PL_sublex_info.sub_op) { | |
2074 | PL_sublex_info.sub_op->op_private |= | |
2075 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
2076 | : OPpTRANS_TO_UTF); | |
f9a63242 | 2077 | } |
012bcf8d | 2078 | } |
a0ed51b3 | 2079 | else { |
012bcf8d | 2080 | *d++ = (char)uv; |
a0ed51b3 | 2081 | } |
012bcf8d GS |
2082 | } |
2083 | else { | |
c4d5f83a | 2084 | *d++ = (char) uv; |
a0ed51b3 | 2085 | } |
79072805 | 2086 | continue; |
02aa26ce | 2087 | |
b239daa5 | 2088 | /* \N{LATIN SMALL LETTER A} is a named character */ |
4a2d328f | 2089 | case 'N': |
55eda711 | 2090 | ++s; |
423cee85 JH |
2091 | if (*s == '{') { |
2092 | char* e = strchr(s, '}'); | |
155aba94 | 2093 | SV *res; |
423cee85 | 2094 | STRLEN len; |
cfd0369c | 2095 | const char *str; |
4e553d73 | 2096 | |
423cee85 | 2097 | if (!e) { |
5777a3f7 | 2098 | yyerror("Missing right brace on \\N{}"); |
423cee85 JH |
2099 | e = s - 1; |
2100 | goto cont_scan; | |
2101 | } | |
dbc0d4f2 JH |
2102 | if (e > s + 2 && s[1] == 'U' && s[2] == '+') { |
2103 | /* \N{U+...} */ | |
2104 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | | |
2105 | PERL_SCAN_DISALLOW_PREFIX; | |
2106 | s += 3; | |
2107 | len = e - s; | |
2108 | uv = grok_hex(s, &len, &flags, NULL); | |
2109 | s = e + 1; | |
2110 | goto NUM_ESCAPE_INSERT; | |
2111 | } | |
55eda711 | 2112 | res = newSVpvn(s + 1, e - s - 1); |
bd61b366 | 2113 | res = new_constant( NULL, 0, "charnames", |
a0714e2c | 2114 | res, NULL, "\\N{...}" ); |
f9a63242 JH |
2115 | if (has_utf8) |
2116 | sv_utf8_upgrade(res); | |
cfd0369c | 2117 | str = SvPV_const(res,len); |
1c47067b JH |
2118 | #ifdef EBCDIC_NEVER_MIND |
2119 | /* charnames uses pack U and that has been | |
2120 | * recently changed to do the below uni->native | |
2121 | * mapping, so this would be redundant (and wrong, | |
2122 | * the code point would be doubly converted). | |
2123 | * But leave this in just in case the pack U change | |
2124 | * gets revoked, but the semantics is still | |
2125 | * desireable for charnames. --jhi */ | |
cddc7ef4 | 2126 | { |
cfd0369c | 2127 | UV uv = utf8_to_uvchr((const U8*)str, 0); |
cddc7ef4 JH |
2128 | |
2129 | if (uv < 0x100) { | |
89ebb4a3 | 2130 | U8 tmpbuf[UTF8_MAXBYTES+1], *d; |
cddc7ef4 JH |
2131 | |
2132 | d = uvchr_to_utf8(tmpbuf, UNI_TO_NATIVE(uv)); | |
2133 | sv_setpvn(res, (char *)tmpbuf, d - tmpbuf); | |
cfd0369c | 2134 | str = SvPV_const(res, len); |
cddc7ef4 JH |
2135 | } |
2136 | } | |
2137 | #endif | |
89491803 | 2138 | if (!has_utf8 && SvUTF8(res)) { |
9d4ba2ae | 2139 | const char * const ostart = SvPVX_const(sv); |
f08d6ad9 GS |
2140 | SvCUR_set(sv, d - ostart); |
2141 | SvPOK_on(sv); | |
e4f3eed8 | 2142 | *d = '\0'; |
f08d6ad9 | 2143 | sv_utf8_upgrade(sv); |
d2f449dd | 2144 | /* this just broke our allocation above... */ |
eb160463 | 2145 | SvGROW(sv, (STRLEN)(send - start)); |
f08d6ad9 | 2146 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 2147 | has_utf8 = TRUE; |
f08d6ad9 | 2148 | } |
eb160463 | 2149 | if (len > (STRLEN)(e - s + 4)) { /* I _guess_ 4 is \N{} --jhi */ |
9d4ba2ae | 2150 | const char * const odest = SvPVX_const(sv); |
423cee85 | 2151 | |
8973db79 | 2152 | SvGROW(sv, (SvLEN(sv) + len - (e - s + 4))); |
423cee85 JH |
2153 | d = SvPVX(sv) + (d - odest); |
2154 | } | |
2155 | Copy(str, d, len, char); | |
2156 | d += len; | |
2157 | SvREFCNT_dec(res); | |
2158 | cont_scan: | |
2159 | s = e + 1; | |
2160 | } | |
2161 | else | |
5777a3f7 | 2162 | yyerror("Missing braces on \\N{}"); |
423cee85 JH |
2163 | continue; |
2164 | ||
02aa26ce | 2165 | /* \c is a control character */ |
79072805 LW |
2166 | case 'c': |
2167 | s++; | |
961ce445 | 2168 | if (s < send) { |
ba210ebe | 2169 | U8 c = *s++; |
c7f1f016 NIS |
2170 | #ifdef EBCDIC |
2171 | if (isLOWER(c)) | |
2172 | c = toUPPER(c); | |
2173 | #endif | |
db42d148 | 2174 | *d++ = NATIVE_TO_NEED(has_utf8,toCTRL(c)); |
ba210ebe | 2175 | } |
961ce445 RGS |
2176 | else { |
2177 | yyerror("Missing control char name in \\c"); | |
2178 | } | |
79072805 | 2179 | continue; |
02aa26ce NT |
2180 | |
2181 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 | 2182 | case 'b': |
db42d148 | 2183 | *d++ = NATIVE_TO_NEED(has_utf8,'\b'); |
79072805 LW |
2184 | break; |
2185 | case 'n': | |
db42d148 | 2186 | *d++ = NATIVE_TO_NEED(has_utf8,'\n'); |
79072805 LW |
2187 | break; |
2188 | case 'r': | |
db42d148 | 2189 | *d++ = NATIVE_TO_NEED(has_utf8,'\r'); |
79072805 LW |
2190 | break; |
2191 | case 'f': | |
db42d148 | 2192 | *d++ = NATIVE_TO_NEED(has_utf8,'\f'); |
79072805 LW |
2193 | break; |
2194 | case 't': | |
db42d148 | 2195 | *d++ = NATIVE_TO_NEED(has_utf8,'\t'); |
79072805 | 2196 | break; |
34a3fe2a | 2197 | case 'e': |
db42d148 | 2198 | *d++ = ASCII_TO_NEED(has_utf8,'\033'); |
34a3fe2a PP |
2199 | break; |
2200 | case 'a': | |
db42d148 | 2201 | *d++ = ASCII_TO_NEED(has_utf8,'\007'); |
79072805 | 2202 | break; |
02aa26ce NT |
2203 | } /* end switch */ |
2204 | ||
79072805 LW |
2205 | s++; |
2206 | continue; | |
02aa26ce | 2207 | } /* end if (backslash) */ |
4c3a8340 TS |
2208 | #ifdef EBCDIC |
2209 | else | |
2210 | literal_endpoint++; | |
2211 | #endif | |
02aa26ce | 2212 | |
f9a63242 | 2213 | default_action: |
2b9d42f0 NIS |
2214 | /* If we started with encoded form, or already know we want it |
2215 | and then encode the next character */ | |
2216 | if ((has_utf8 || this_utf8) && !NATIVE_IS_INVARIANT((U8)(*s))) { | |
2217 | STRLEN len = 1; | |
5f66b61c AL |
2218 | const UV nextuv = (this_utf8) ? utf8n_to_uvchr((U8*)s, send - s, &len, 0) : (UV) ((U8) *s); |
2219 | const STRLEN need = UNISKIP(NATIVE_TO_UNI(nextuv)); | |
2b9d42f0 NIS |
2220 | s += len; |
2221 | if (need > len) { | |
2222 | /* encoded value larger than old, need extra space (NOTE: SvCUR() not set here) */ | |
9d4ba2ae | 2223 | const STRLEN off = d - SvPVX_const(sv); |
2b9d42f0 NIS |
2224 | d = SvGROW(sv, SvLEN(sv) + (need-len)) + off; |
2225 | } | |
5f66b61c | 2226 | d = (char*)uvchr_to_utf8((U8*)d, nextuv); |
2b9d42f0 NIS |
2227 | has_utf8 = TRUE; |
2228 | } | |
2229 | else { | |
2230 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
2231 | } | |
02aa26ce NT |
2232 | } /* while loop to process each character */ |
2233 | ||
2234 | /* terminate the string and set up the sv */ | |
79072805 | 2235 | *d = '\0'; |
95a20fc0 | 2236 | SvCUR_set(sv, d - SvPVX_const(sv)); |
2b9d42f0 | 2237 | if (SvCUR(sv) >= SvLEN(sv)) |
d0063567 | 2238 | Perl_croak(aTHX_ "panic: constant overflowed allocated space"); |
2b9d42f0 | 2239 | |
79072805 | 2240 | SvPOK_on(sv); |
9f4817db | 2241 | if (PL_encoding && !has_utf8) { |
d0063567 DK |
2242 | sv_recode_to_utf8(sv, PL_encoding); |
2243 | if (SvUTF8(sv)) | |
2244 | has_utf8 = TRUE; | |
9f4817db | 2245 | } |
2b9d42f0 | 2246 | if (has_utf8) { |
7e2040f0 | 2247 | SvUTF8_on(sv); |
2b9d42f0 | 2248 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
d0063567 | 2249 | PL_sublex_info.sub_op->op_private |= |
2b9d42f0 NIS |
2250 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); |
2251 | } | |
2252 | } | |
79072805 | 2253 | |
02aa26ce | 2254 | /* shrink the sv if we allocated more than we used */ |
79072805 | 2255 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
1da4ca5f | 2256 | SvPV_shrink_to_cur(sv); |
79072805 | 2257 | } |
02aa26ce | 2258 | |
9b599b2a | 2259 | /* return the substring (via yylval) only if we parsed anything */ |
3280af22 NIS |
2260 | if (s > PL_bufptr) { |
2261 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) | |
4e553d73 | 2262 | sv = new_constant(start, s - start, (PL_lex_inpat ? "qr" : "q"), |
a0714e2c | 2263 | sv, NULL, |
4e553d73 | 2264 | ( PL_lex_inwhat == OP_TRANS |
b3ac6de7 | 2265 | ? "tr" |
3280af22 | 2266 | : ( (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) |
b3ac6de7 IZ |
2267 | ? "s" |
2268 | : "qq"))); | |
79072805 | 2269 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 2270 | } else |
8990e307 | 2271 | SvREFCNT_dec(sv); |
79072805 LW |
2272 | return s; |
2273 | } | |
2274 | ||
ffb4593c NT |
2275 | /* S_intuit_more |
2276 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
2277 | * FALSE otherwise. | |
ffb4593c NT |
2278 | * |
2279 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
2280 | * | |
2281 | * ->[ and ->{ return TRUE | |
2282 | * { and [ outside a pattern are always subscripts, so return TRUE | |
2283 | * if we're outside a pattern and it's not { or [, then return FALSE | |
2284 | * if we're in a pattern and the first char is a { | |
2285 | * {4,5} (any digits around the comma) returns FALSE | |
2286 | * if we're in a pattern and the first char is a [ | |
2287 | * [] returns FALSE | |
2288 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
2289 | * character class or not. It has to deal with things like | |
2290 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
2291 | * anything else returns TRUE | |
2292 | */ | |
2293 | ||
9cbb5ea2 GS |
2294 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
2295 | ||
76e3520e | 2296 | STATIC int |
cea2e8a9 | 2297 | S_intuit_more(pTHX_ register char *s) |
79072805 | 2298 | { |
97aff369 | 2299 | dVAR; |
3280af22 | 2300 | if (PL_lex_brackets) |
79072805 LW |
2301 | return TRUE; |
2302 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
2303 | return TRUE; | |
2304 | if (*s != '{' && *s != '[') | |
2305 | return FALSE; | |
3280af22 | 2306 | if (!PL_lex_inpat) |
79072805 LW |
2307 | return TRUE; |
2308 | ||
2309 | /* In a pattern, so maybe we have {n,m}. */ | |
2310 | if (*s == '{') { | |
2311 | s++; | |
2312 | if (!isDIGIT(*s)) | |
2313 | return TRUE; | |
2314 | while (isDIGIT(*s)) | |
2315 | s++; | |
2316 | if (*s == ',') | |
2317 | s++; | |
2318 | while (isDIGIT(*s)) | |
2319 | s++; | |
2320 | if (*s == '}') | |
2321 | return FALSE; | |
2322 | return TRUE; | |
2323 | ||
2324 | } | |
2325 | ||
2326 | /* On the other hand, maybe we have a character class */ | |
2327 | ||
2328 | s++; | |
2329 | if (*s == ']' || *s == '^') | |
2330 | return FALSE; | |
2331 | else { | |
ffb4593c | 2332 | /* this is terrifying, and it works */ |
79072805 LW |
2333 | int weight = 2; /* let's weigh the evidence */ |
2334 | char seen[256]; | |
f27ffc4a | 2335 | unsigned char un_char = 255, last_un_char; |
9d4ba2ae | 2336 | const char * const send = strchr(s,']'); |
3280af22 | 2337 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
2338 | |
2339 | if (!send) /* has to be an expression */ | |
2340 | return TRUE; | |
2341 | ||
2342 | Zero(seen,256,char); | |
2343 | if (*s == '$') | |
2344 | weight -= 3; | |
2345 | else if (isDIGIT(*s)) { | |
2346 | if (s[1] != ']') { | |
2347 | if (isDIGIT(s[1]) && s[2] == ']') | |
2348 | weight -= 10; | |
2349 | } | |
2350 | else | |
2351 | weight -= 100; | |
2352 | } | |
2353 | for (; s < send; s++) { | |
2354 | last_un_char = un_char; | |
2355 | un_char = (unsigned char)*s; | |
2356 | switch (*s) { | |
2357 | case '@': | |
2358 | case '&': | |
2359 | case '$': | |
2360 | weight -= seen[un_char] * 10; | |
7e2040f0 | 2361 | if (isALNUM_lazy_if(s+1,UTF)) { |
90e5519e | 2362 | int len; |
8903cb82 | 2363 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
90e5519e NC |
2364 | len = (int)strlen(tmpbuf); |
2365 | if (len > 1 && gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PV)) | |
79072805 LW |
2366 | weight -= 100; |
2367 | else | |
2368 | weight -= 10; | |
2369 | } | |
2370 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
2371 | strchr("[#!%*<>()-=",s[1])) { |
2372 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
2373 | weight -= 10; |
2374 | else | |
2375 | weight -= 1; | |
2376 | } | |
2377 | break; | |
2378 | case '\\': | |
2379 | un_char = 254; | |
2380 | if (s[1]) { | |
93a17b20 | 2381 | if (strchr("wds]",s[1])) |
79072805 LW |
2382 | weight += 100; |
2383 | else if (seen['\''] || seen['"']) | |
2384 | weight += 1; | |
93a17b20 | 2385 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
2386 | weight += 40; |
2387 | else if (isDIGIT(s[1])) { | |
2388 | weight += 40; | |
2389 | while (s[1] && isDIGIT(s[1])) | |
2390 | s++; | |
2391 | } | |
2392 | } | |
2393 | else | |
2394 | weight += 100; | |
2395 | break; | |
2396 | case '-': | |
2397 | if (s[1] == '\\') | |
2398 | weight += 50; | |
93a17b20 | 2399 | if (strchr("aA01! ",last_un_char)) |
79072805 | 2400 | weight += 30; |
93a17b20 | 2401 | if (strchr("zZ79~",s[1])) |
79072805 | 2402 | weight += 30; |
f27ffc4a GS |
2403 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
2404 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
2405 | break; |
2406 | default: | |
3792a11b NC |
2407 | if (!isALNUM(last_un_char) |
2408 | && !(last_un_char == '$' || last_un_char == '@' | |
2409 | || last_un_char == '&') | |
2410 | && isALPHA(*s) && s[1] && isALPHA(s[1])) { | |
79072805 LW |
2411 | char *d = tmpbuf; |
2412 | while (isALPHA(*s)) | |
2413 | *d++ = *s++; | |
2414 | *d = '\0'; | |
2415 | if (keyword(tmpbuf, d - tmpbuf)) | |
2416 | weight -= 150; | |
2417 | } | |
2418 | if (un_char == last_un_char + 1) | |
2419 | weight += 5; | |
2420 | weight -= seen[un_char]; | |
2421 | break; | |
2422 | } | |
2423 | seen[un_char]++; | |
2424 | } | |
2425 | if (weight >= 0) /* probably a character class */ | |
2426 | return FALSE; | |
2427 | } | |
2428 | ||
2429 | return TRUE; | |
2430 | } | |
ffed7fef | 2431 | |
ffb4593c NT |
2432 | /* |
2433 | * S_intuit_method | |
2434 | * | |
2435 | * Does all the checking to disambiguate | |
2436 | * foo bar | |
2437 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
2438 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
2439 | * | |
2440 | * First argument is the stuff after the first token, e.g. "bar". | |
2441 | * | |
2442 | * Not a method if bar is a filehandle. | |
2443 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
2444 | * Not a method if it's really "Foo $bar" | |
2445 | * Method if it's "foo $bar" | |
2446 | * Not a method if it's really "print foo $bar" | |
2447 | * Method if it's really "foo package::" (interpreted as package->foo) | |
8f8cf39c | 2448 | * Not a method if bar is known to be a subroutine ("sub bar; foo bar") |
3cb0bbe5 | 2449 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
2450 | * => |
2451 | */ | |
2452 | ||
76e3520e | 2453 | STATIC int |
62d55b22 | 2454 | S_intuit_method(pTHX_ char *start, GV *gv, CV *cv) |
a0d0e21e | 2455 | { |
97aff369 | 2456 | dVAR; |
a0d0e21e | 2457 | char *s = start + (*start == '$'); |
3280af22 | 2458 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
2459 | STRLEN len; |
2460 | GV* indirgv; | |
5db06880 NC |
2461 | #ifdef PERL_MAD |
2462 | int soff; | |
2463 | #endif | |
a0d0e21e LW |
2464 | |
2465 | if (gv) { | |
62d55b22 | 2466 | if (SvTYPE(gv) == SVt_PVGV && GvIO(gv)) |
a0d0e21e | 2467 | return 0; |
62d55b22 NC |
2468 | if (cv) { |
2469 | if (SvPOK(cv)) { | |
2470 | const char *proto = SvPVX_const(cv); | |
2471 | if (proto) { | |
2472 | if (*proto == ';') | |
2473 | proto++; | |
2474 | if (*proto == '*') | |
2475 | return 0; | |
2476 | } | |
b6c543e3 IZ |
2477 | } |
2478 | } else | |
a0d0e21e LW |
2479 | gv = 0; |
2480 | } | |
8903cb82 | 2481 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
2482 | /* start is the beginning of the possible filehandle/object, |
2483 | * and s is the end of it | |
2484 | * tmpbuf is a copy of it | |
2485 | */ | |
2486 | ||
a0d0e21e | 2487 | if (*start == '$') { |
3280af22 | 2488 | if (gv || PL_last_lop_op == OP_PRINT || isUPPER(*PL_tokenbuf)) |
a0d0e21e | 2489 | return 0; |
5db06880 NC |
2490 | #ifdef PERL_MAD |
2491 | len = start - SvPVX(PL_linestr); | |
2492 | #endif | |
29595ff2 | 2493 | s = PEEKSPACE(s); |
5db06880 NC |
2494 | #ifdef PERLMAD |
2495 | start = SvPVX(PL_linestr) + len; | |
2496 | #endif | |
3280af22 NIS |
2497 | PL_bufptr = start; |
2498 | PL_expect = XREF; | |
a0d0e21e LW |
2499 | return *s == '(' ? FUNCMETH : METHOD; |
2500 | } | |
2501 | if (!keyword(tmpbuf, len)) { | |
c3e0f903 GS |
2502 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
2503 | len -= 2; | |
2504 | tmpbuf[len] = '\0'; | |
5db06880 NC |
2505 | #ifdef PERL_MAD |
2506 | soff = s - SvPVX(PL_linestr); | |
2507 | #endif | |
c3e0f903 GS |
2508 | goto bare_package; |
2509 | } | |
90e5519e | 2510 | indirgv = gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PVCV); |
8ebc5c01 | 2511 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
2512 | return 0; |
2513 | /* filehandle or package name makes it a method */ | |
89bfa8cd | 2514 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) { |
5db06880 NC |
2515 | #ifdef PERL_MAD |
2516 | soff = s - SvPVX(PL_linestr); | |
2517 | #endif | |
29595ff2 | 2518 | s = PEEKSPACE(s); |
3280af22 | 2519 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 2520 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 2521 | bare_package: |
cd81e915 | 2522 | start_force(PL_curforce); |
9ded7720 | 2523 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, |
79cb57f6 | 2524 | newSVpvn(tmpbuf,len)); |
9ded7720 | 2525 | NEXTVAL_NEXTTOKE.opval->op_private = OPpCONST_BARE; |
5db06880 NC |
2526 | if (PL_madskills) |
2527 | curmad('X', newSVpvn(start,SvPVX(PL_linestr) + soff - start)); | |
3280af22 | 2528 | PL_expect = XTERM; |
a0d0e21e | 2529 | force_next(WORD); |
3280af22 | 2530 | PL_bufptr = s; |
5db06880 NC |
2531 | #ifdef PERL_MAD |
2532 | PL_bufptr = SvPVX(PL_linestr) + soff; /* restart before space */ | |
2533 | #endif | |
a0d0e21e LW |
2534 | return *s == '(' ? FUNCMETH : METHOD; |
2535 | } | |
2536 | } | |
2537 | return 0; | |
2538 | } | |
2539 | ||
ffb4593c NT |
2540 | /* |
2541 | * S_incl_perldb | |
2542 | * Return a string of Perl code to load the debugger. If PERL5DB | |
2543 | * is set, it will return the contents of that, otherwise a | |
2544 | * compile-time require of perl5db.pl. | |
2545 | */ | |
2546 | ||
bfed75c6 | 2547 | STATIC const char* |
cea2e8a9 | 2548 | S_incl_perldb(pTHX) |
a0d0e21e | 2549 | { |
97aff369 | 2550 | dVAR; |
3280af22 | 2551 | if (PL_perldb) { |
9d4ba2ae | 2552 | const char * const pdb = PerlEnv_getenv("PERL5DB"); |
a0d0e21e LW |
2553 | |
2554 | if (pdb) | |
2555 | return pdb; | |
93189314 | 2556 | SETERRNO(0,SS_NORMAL); |
a0d0e21e LW |
2557 | return "BEGIN { require 'perl5db.pl' }"; |
2558 | } | |
2559 | return ""; | |
2560 | } | |
2561 | ||
2562 | ||
16d20bd9 | 2563 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 2564 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
2565 | * Note that the filter function only applies to the current source file |
2566 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
2567 | * | |
2568 | * The datasv parameter (which may be NULL) can be used to pass | |
2569 | * private data to this instance of the filter. The filter function | |
2570 | * can recover the SV using the FILTER_DATA macro and use it to | |
2571 | * store private buffers and state information. | |
2572 | * | |
2573 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 2574 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 2575 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
2576 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
2577 | * private use must be set using malloc'd pointers. | |
2578 | */ | |
16d20bd9 AD |
2579 | |
2580 | SV * | |
864dbfa3 | 2581 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 2582 | { |
97aff369 | 2583 | dVAR; |
f4c556ac | 2584 | if (!funcp) |
a0714e2c | 2585 | return NULL; |
f4c556ac | 2586 | |
3280af22 NIS |
2587 | if (!PL_rsfp_filters) |
2588 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 2589 | if (!datasv) |
561b68a9 | 2590 | datasv = newSV(0); |
862a34c6 | 2591 | SvUPGRADE(datasv, SVt_PVIO); |
8141890a | 2592 | IoANY(datasv) = FPTR2DPTR(void *, funcp); /* stash funcp into spare field */ |
e0c19803 | 2593 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac | 2594 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
8141890a | 2595 | IoANY(datasv), SvPV_nolen(datasv))); |
3280af22 NIS |
2596 | av_unshift(PL_rsfp_filters, 1); |
2597 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
2598 | return(datasv); |
2599 | } | |
4e553d73 | 2600 | |
16d20bd9 AD |
2601 | |
2602 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 2603 | void |
864dbfa3 | 2604 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 2605 | { |
97aff369 | 2606 | dVAR; |
e0c19803 | 2607 | SV *datasv; |
24801a4b | 2608 | |
33073adb | 2609 | #ifdef DEBUGGING |
8141890a | 2610 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", FPTR2DPTR(XPVIO *, funcp))); |
33073adb | 2611 | #endif |
3280af22 | 2612 | if (!PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
2613 | return; |
2614 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 2615 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
8141890a | 2616 | if (IoANY(datasv) == FPTR2DPTR(void *, funcp)) { |
e0c19803 | 2617 | IoFLAGS(datasv) &= ~IOf_FAKE_DIRP; |
4755096e | 2618 | IoANY(datasv) = (void *)NULL; |
3280af22 | 2619 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 2620 | |
16d20bd9 AD |
2621 | return; |
2622 | } | |
2623 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 2624 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
2625 | } |
2626 | ||
2627 | ||
1de9afcd RGS |
2628 | /* Invoke the idxth filter function for the current rsfp. */ |
2629 | /* maxlen 0 = read one text line */ | |
16d20bd9 | 2630 | I32 |
864dbfa3 | 2631 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
a0d0e21e | 2632 | { |
97aff369 | 2633 | dVAR; |
16d20bd9 AD |
2634 | filter_t funcp; |
2635 | SV *datasv = NULL; | |
f482118e NC |
2636 | /* This API is bad. It should have been using unsigned int for maxlen. |
2637 | Not sure if we want to change the API, but if not we should sanity | |
2638 | check the value here. */ | |
39cd7a59 NC |
2639 | const unsigned int correct_length |
2640 | = maxlen < 0 ? | |
2641 | #ifdef PERL_MICRO | |
2642 | 0x7FFFFFFF | |
2643 | #else | |
2644 | INT_MAX | |
2645 | #endif | |
2646 | : maxlen; | |
e50aee73 | 2647 | |
3280af22 | 2648 | if (!PL_rsfp_filters) |
16d20bd9 | 2649 | return -1; |
1de9afcd | 2650 | if (idx > AvFILLp(PL_rsfp_filters)) { /* Any more filters? */ |
16d20bd9 AD |
2651 | /* Provide a default input filter to make life easy. */ |
2652 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
2653 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2654 | "filter_read %d: from rsfp\n", idx)); | |
f482118e | 2655 | if (correct_length) { |
16d20bd9 AD |
2656 | /* Want a block */ |
2657 | int len ; | |
f54cb97a | 2658 | const int old_len = SvCUR(buf_sv); |
16d20bd9 AD |
2659 | |
2660 | /* ensure buf_sv is large enough */ | |
f482118e NC |
2661 | SvGROW(buf_sv, (STRLEN)(old_len + correct_length)) ; |
2662 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, | |
2663 | correct_length)) <= 0) { | |
3280af22 | 2664 | if (PerlIO_error(PL_rsfp)) |
37120919 AD |
2665 | return -1; /* error */ |
2666 | else | |
2667 | return 0 ; /* end of file */ | |
2668 | } | |
16d20bd9 AD |
2669 | SvCUR_set(buf_sv, old_len + len) ; |
2670 | } else { | |
2671 | /* Want a line */ | |
3280af22 NIS |
2672 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
2673 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
2674 | return -1; /* error */ |
2675 | else | |
2676 | return 0 ; /* end of file */ | |
2677 | } | |
16d20bd9 AD |
2678 | } |
2679 | return SvCUR(buf_sv); | |
2680 | } | |
2681 | /* Skip this filter slot if filter has been deleted */ | |
1de9afcd | 2682 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef) { |
f4c556ac GS |
2683 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2684 | "filter_read %d: skipped (filter deleted)\n", | |
2685 | idx)); | |
f482118e | 2686 | return FILTER_READ(idx+1, buf_sv, correct_length); /* recurse */ |
16d20bd9 AD |
2687 | } |
2688 | /* Get function pointer hidden within datasv */ | |
8141890a | 2689 | funcp = DPTR2FPTR(filter_t, IoANY(datasv)); |
f4c556ac GS |
2690 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2691 | "filter_read %d: via function %p (%s)\n", | |
cfd0369c | 2692 | idx, datasv, SvPV_nolen_const(datasv))); |
16d20bd9 AD |
2693 | /* Call function. The function is expected to */ |
2694 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 2695 | /* Return: <0:error, =0:eof, >0:not eof */ |
f482118e | 2696 | return (*funcp)(aTHX_ idx, buf_sv, correct_length); |
16d20bd9 AD |
2697 | } |
2698 | ||
76e3520e | 2699 | STATIC char * |
cea2e8a9 | 2700 | S_filter_gets(pTHX_ register SV *sv, register PerlIO *fp, STRLEN append) |
16d20bd9 | 2701 | { |
97aff369 | 2702 | dVAR; |
c39cd008 | 2703 | #ifdef PERL_CR_FILTER |
3280af22 | 2704 | if (!PL_rsfp_filters) { |
c39cd008 | 2705 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
2706 | } |
2707 | #endif | |
3280af22 | 2708 | if (PL_rsfp_filters) { |
55497cff | 2709 | if (!append) |
2710 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
2711 | if (FILTER_READ(0, sv, 0) > 0) |
2712 | return ( SvPVX(sv) ) ; | |
2713 | else | |
bd61b366 | 2714 | return NULL ; |
16d20bd9 | 2715 | } |
9d116dd7 | 2716 | else |
fd049845 | 2717 | return (sv_gets(sv, fp, append)); |
a0d0e21e LW |
2718 | } |
2719 | ||
01ec43d0 | 2720 | STATIC HV * |
7fc63493 | 2721 | S_find_in_my_stash(pTHX_ const char *pkgname, I32 len) |
def3634b | 2722 | { |
97aff369 | 2723 | dVAR; |
def3634b GS |
2724 | GV *gv; |
2725 | ||
01ec43d0 | 2726 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
2727 | return PL_curstash; |
2728 | ||
2729 | if (len > 2 && | |
2730 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
90e5519e | 2731 | (gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVHV))) |
01ec43d0 GS |
2732 | { |
2733 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
2734 | } |
2735 | ||
2736 | /* use constant CLASS => 'MyClass' */ | |
90e5519e | 2737 | if ((gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVCV))) { |
def3634b GS |
2738 | SV *sv; |
2739 | if (GvCV(gv) && (sv = cv_const_sv(GvCV(gv)))) { | |
83003860 | 2740 | pkgname = SvPV_nolen_const(sv); |
def3634b GS |
2741 | } |
2742 | } | |
2743 | ||
2744 | return gv_stashpv(pkgname, FALSE); | |
2745 | } | |
a0d0e21e | 2746 | |
5db06880 NC |
2747 | #ifdef PERL_MAD |
2748 | /* | |
2749 | * Perl_madlex | |
2750 | * The intent of this yylex wrapper is to minimize the changes to the | |
2751 | * tokener when we aren't interested in collecting madprops. It remains | |
2752 | * to be seen how successful this strategy will be... | |
2753 | */ | |
2754 | ||
2755 | int | |
2756 | Perl_madlex(pTHX) | |
2757 | { | |
2758 | int optype; | |
2759 | char *s = PL_bufptr; | |
2760 | ||
cd81e915 NC |
2761 | /* make sure PL_thiswhite is initialized */ |
2762 | PL_thiswhite = 0; | |
2763 | PL_thismad = 0; | |
5db06880 | 2764 | |
cd81e915 | 2765 | /* just do what yylex would do on pending identifier; leave PL_thiswhite alone */ |
5db06880 NC |
2766 | if (PL_pending_ident) |
2767 | return S_pending_ident(aTHX); | |
2768 | ||
2769 | /* previous token ate up our whitespace? */ | |
cd81e915 NC |
2770 | if (!PL_lasttoke && PL_nextwhite) { |
2771 | PL_thiswhite = PL_nextwhite; | |
2772 | PL_nextwhite = 0; | |
5db06880 NC |
2773 | } |
2774 | ||
2775 | /* isolate the token, and figure out where it is without whitespace */ | |
cd81e915 NC |
2776 | PL_realtokenstart = -1; |
2777 | PL_thistoken = 0; | |
5db06880 NC |
2778 | optype = yylex(); |
2779 | s = PL_bufptr; | |
cd81e915 | 2780 | assert(PL_curforce < 0); |
5db06880 | 2781 | |
cd81e915 NC |
2782 | if (!PL_thismad || PL_thismad->mad_key == '^') { /* not forced already? */ |
2783 | if (!PL_thistoken) { | |
2784 | if (PL_realtokenstart < 0 || !CopLINE(PL_curcop)) | |
2785 | PL_thistoken = newSVpvn("",0); | |
5db06880 | 2786 | else { |
cd81e915 NC |
2787 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
2788 | PL_thistoken = newSVpvn(tstart, s - tstart); | |
5db06880 NC |
2789 | } |
2790 | } | |
cd81e915 NC |
2791 | if (PL_thismad) /* install head */ |
2792 | CURMAD('X', PL_thistoken); | |
5db06880 NC |
2793 | } |
2794 | ||
2795 | /* last whitespace of a sublex? */ | |
cd81e915 NC |
2796 | if (optype == ')' && PL_endwhite) { |
2797 | CURMAD('X', PL_endwhite); | |
5db06880 NC |
2798 | } |
2799 | ||
cd81e915 | 2800 | if (!PL_thismad) { |
5db06880 NC |
2801 | |
2802 | /* if no whitespace and we're at EOF, bail. Otherwise fake EOF below. */ | |
cd81e915 NC |
2803 | if (!PL_thiswhite && !PL_endwhite && !optype) { |
2804 | sv_free(PL_thistoken); | |
2805 | PL_thistoken = 0; | |
5db06880 NC |
2806 | return 0; |
2807 | } | |
2808 | ||
2809 | /* put off final whitespace till peg */ | |
2810 | if (optype == ';' && !PL_rsfp) { | |
cd81e915 NC |
2811 | PL_nextwhite = PL_thiswhite; |
2812 | PL_thiswhite = 0; | |
5db06880 | 2813 | } |
cd81e915 NC |
2814 | else if (PL_thisopen) { |
2815 | CURMAD('q', PL_thisopen); | |
2816 | if (PL_thistoken) | |
2817 | sv_free(PL_thistoken); | |
2818 | PL_thistoken = 0; | |
5db06880 NC |
2819 | } |
2820 | else { | |
2821 | /* Store actual token text as madprop X */ | |
cd81e915 | 2822 | CURMAD('X', PL_thistoken); |
5db06880 NC |
2823 | } |
2824 | ||
cd81e915 | 2825 | if (PL_thiswhite) { |
5db06880 | 2826 | /* add preceding whitespace as madprop _ */ |
cd81e915 | 2827 | CURMAD('_', PL_thiswhite); |
5db06880 NC |
2828 | } |
2829 | ||
cd81e915 | 2830 | if (PL_thisstuff) { |
5db06880 | 2831 | /* add quoted material as madprop = */ |
cd81e915 | 2832 | CURMAD('=', PL_thisstuff); |
5db06880 NC |
2833 | } |
2834 | ||
cd81e915 | 2835 | if (PL_thisclose) { |
5db06880 | 2836 | /* add terminating quote as madprop Q */ |
cd81e915 | 2837 | CURMAD('Q', PL_thisclose); |
5db06880 NC |
2838 | } |
2839 | } | |
2840 | ||
2841 | /* special processing based on optype */ | |
2842 | ||
2843 | switch (optype) { | |
2844 | ||
2845 | /* opval doesn't need a TOKEN since it can already store mp */ | |
2846 | case WORD: | |
2847 | case METHOD: | |
2848 | case FUNCMETH: | |
2849 | case THING: | |
2850 | case PMFUNC: | |
2851 | case PRIVATEREF: | |
2852 | case FUNC0SUB: | |
2853 | case UNIOPSUB: | |
2854 | case LSTOPSUB: | |
2855 | if (yylval.opval) | |
cd81e915 NC |
2856 | append_madprops(PL_thismad, yylval.opval, 0); |
2857 | PL_thismad = 0; | |
5db06880 NC |
2858 | return optype; |
2859 | ||
2860 | /* fake EOF */ | |
2861 | case 0: | |
2862 | optype = PEG; | |
cd81e915 NC |
2863 | if (PL_endwhite) { |
2864 | addmad(newMADsv('p', PL_endwhite), &PL_thismad, 0); | |
2865 | PL_endwhite = 0; | |
5db06880 NC |
2866 | } |
2867 | break; | |
2868 | ||
2869 | case ']': | |
2870 | case '}': | |
cd81e915 | 2871 | if (PL_faketokens) |
5db06880 NC |
2872 | break; |
2873 | /* remember any fake bracket that lexer is about to discard */ | |
2874 | if (PL_lex_brackets == 1 && | |
2875 | ((expectation)PL_lex_brackstack[0] & XFAKEBRACK)) | |
2876 | { | |
2877 | s = PL_bufptr; | |
2878 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
2879 | s++; | |
2880 | if (*s == '}') { | |
cd81e915 NC |
2881 | PL_thiswhite = newSVpvn(PL_bufptr, ++s - PL_bufptr); |
2882 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
2883 | PL_thiswhite = 0; | |
5db06880 NC |
2884 | PL_bufptr = s - 1; |
2885 | break; /* don't bother looking for trailing comment */ | |
2886 | } | |
2887 | else | |
2888 | s = PL_bufptr; | |
2889 | } | |
2890 | if (optype == ']') | |
2891 | break; | |
2892 | /* FALLTHROUGH */ | |
2893 | ||
2894 | /* attach a trailing comment to its statement instead of next token */ | |
2895 | case ';': | |
cd81e915 | 2896 | if (PL_faketokens) |
5db06880 NC |
2897 | break; |
2898 | if (PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == optype) { | |
2899 | s = PL_bufptr; | |
2900 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
2901 | s++; | |
2902 | if (*s == '\n' || *s == '#') { | |
2903 | while (s < PL_bufend && *s != '\n') | |
2904 | s++; | |
2905 | if (s < PL_bufend) | |
2906 | s++; | |
cd81e915 NC |
2907 | PL_thiswhite = newSVpvn(PL_bufptr, s - PL_bufptr); |
2908 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
2909 | PL_thiswhite = 0; | |
5db06880 NC |
2910 | PL_bufptr = s; |
2911 | } | |
2912 | } | |
2913 | break; | |
2914 | ||
2915 | /* pval */ | |
2916 | case LABEL: | |
2917 | break; | |
2918 | ||
2919 | /* ival */ | |
2920 | default: | |
2921 | break; | |
2922 | ||
2923 | } | |
2924 | ||
2925 | /* Create new token struct. Note: opvals return early above. */ | |
cd81e915 NC |
2926 | yylval.tkval = newTOKEN(optype, yylval, PL_thismad); |
2927 | PL_thismad = 0; | |
5db06880 NC |
2928 | return optype; |
2929 | } | |
2930 | #endif | |
2931 | ||
468aa647 | 2932 | STATIC char * |
cc6ed77d | 2933 | S_tokenize_use(pTHX_ int is_use, char *s) { |
97aff369 | 2934 | dVAR; |
468aa647 RGS |
2935 | if (PL_expect != XSTATE) |
2936 | yyerror(Perl_form(aTHX_ "\"%s\" not allowed in expression", | |
2937 | is_use ? "use" : "no")); | |
29595ff2 | 2938 | s = SKIPSPACE1(s); |
468aa647 RGS |
2939 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { |
2940 | s = force_version(s, TRUE); | |
29595ff2 | 2941 | if (*s == ';' || (s = SKIPSPACE1(s), *s == ';')) { |
cd81e915 | 2942 | start_force(PL_curforce); |
9ded7720 | 2943 | NEXTVAL_NEXTTOKE.opval = NULL; |
468aa647 RGS |
2944 | force_next(WORD); |
2945 | } | |
2946 | else if (*s == 'v') { | |
2947 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
2948 | s = force_version(s, FALSE); | |
2949 | } | |
2950 | } | |
2951 | else { | |
2952 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
2953 | s = force_version(s, FALSE); | |
2954 | } | |
2955 | yylval.ival = is_use; | |
2956 | return s; | |
2957 | } | |
748a9306 | 2958 | #ifdef DEBUGGING |
27da23d5 | 2959 | static const char* const exp_name[] = |
09bef843 | 2960 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
27308ded | 2961 | "ATTRTERM", "TERMBLOCK", "TERMORDORDOR" |
09bef843 | 2962 | }; |
748a9306 | 2963 | #endif |
463ee0b2 | 2964 | |
02aa26ce NT |
2965 | /* |
2966 | yylex | |
2967 | ||
2968 | Works out what to call the token just pulled out of the input | |
2969 | stream. The yacc parser takes care of taking the ops we return and | |
2970 | stitching them into a tree. | |
2971 | ||
2972 | Returns: | |
2973 | PRIVATEREF | |
2974 | ||
2975 | Structure: | |
2976 | if read an identifier | |
2977 | if we're in a my declaration | |
2978 | croak if they tried to say my($foo::bar) | |
2979 | build the ops for a my() declaration | |
2980 | if it's an access to a my() variable | |
2981 | are we in a sort block? | |
2982 | croak if my($a); $a <=> $b | |
2983 | build ops for access to a my() variable | |
2984 | if in a dq string, and they've said @foo and we can't find @foo | |
2985 | croak | |
2986 | build ops for a bareword | |
2987 | if we already built the token before, use it. | |
2988 | */ | |
2989 | ||
20141f0e | 2990 | |
dba4d153 JH |
2991 | #ifdef __SC__ |
2992 | #pragma segment Perl_yylex | |
2993 | #endif | |
dba4d153 | 2994 | int |
dba4d153 | 2995 | Perl_yylex(pTHX) |
20141f0e | 2996 | { |
97aff369 | 2997 | dVAR; |
3afc138a | 2998 | register char *s = PL_bufptr; |
378cc40b | 2999 | register char *d; |
463ee0b2 | 3000 | STRLEN len; |
aa7440fb | 3001 | bool bof = FALSE; |
a687059c | 3002 | |
bbf60fe6 | 3003 | DEBUG_T( { |
396482e1 | 3004 | SV* tmp = newSVpvs(""); |
b6007c36 DM |
3005 | PerlIO_printf(Perl_debug_log, "### %"IVdf":LEX_%s/X%s %s\n", |
3006 | (IV)CopLINE(PL_curcop), | |
3007 | lex_state_names[PL_lex_state], | |
3008 | exp_name[PL_expect], | |
3009 | pv_display(tmp, s, strlen(s), 0, 60)); | |
3010 | SvREFCNT_dec(tmp); | |
bbf60fe6 | 3011 | } ); |
02aa26ce | 3012 | /* check if there's an identifier for us to look at */ |
ba979b31 | 3013 | if (PL_pending_ident) |
bbf60fe6 | 3014 | return REPORT(S_pending_ident(aTHX)); |
bbce6d69 | 3015 | |
02aa26ce NT |
3016 | /* no identifier pending identification */ |
3017 | ||
3280af22 | 3018 | switch (PL_lex_state) { |
79072805 LW |
3019 | #ifdef COMMENTARY |
3020 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
3021 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
3022 | break; | |
3023 | #endif | |
3024 | ||
09bef843 | 3025 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 3026 | case LEX_KNOWNEXT: |
5db06880 NC |
3027 | #ifdef PERL_MAD |
3028 | PL_lasttoke--; | |
3029 | yylval = PL_nexttoke[PL_lasttoke].next_val; | |
3030 | if (PL_madskills) { | |
cd81e915 | 3031 | PL_thismad = PL_nexttoke[PL_lasttoke].next_mad; |
5db06880 | 3032 | PL_nexttoke[PL_lasttoke].next_mad = 0; |
cd81e915 NC |
3033 | if (PL_thismad && PL_thismad->mad_key == '_') { |
3034 | PL_thiswhite = (SV*)PL_thismad->mad_val; | |
3035 | PL_thismad->mad_val = 0; | |
3036 | mad_free(PL_thismad); | |
3037 | PL_thismad = 0; | |
5db06880 NC |
3038 | } |
3039 | } | |
3040 | if (!PL_lasttoke) { | |
3041 | PL_lex_state = PL_lex_defer; | |
3042 | PL_expect = PL_lex_expect; | |
3043 | PL_lex_defer = LEX_NORMAL; | |
3044 | if (!PL_nexttoke[PL_lasttoke].next_type) | |
3045 | return yylex(); | |
3046 | } | |
3047 | #else | |
3280af22 | 3048 | PL_nexttoke--; |
5db06880 | 3049 | yylval = PL_nextval[PL_nexttoke]; |
3280af22 NIS |
3050 | if (!PL_nexttoke) { |
3051 | PL_lex_state = PL_lex_defer; | |
3052 | PL_expect = PL_lex_expect; | |
3053 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 3054 | } |
5db06880 NC |
3055 | #endif |
3056 | #ifdef PERL_MAD | |
3057 | /* FIXME - can these be merged? */ | |
3058 | return(PL_nexttoke[PL_lasttoke].next_type); | |
3059 | #else | |
bbf60fe6 | 3060 | return REPORT(PL_nexttype[PL_nexttoke]); |
5db06880 | 3061 | #endif |
79072805 | 3062 | |
02aa26ce | 3063 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 3064 | when we get here, PL_bufptr is at the \ |
02aa26ce | 3065 | */ |
79072805 LW |
3066 | case LEX_INTERPCASEMOD: |
3067 | #ifdef DEBUGGING | |
3280af22 | 3068 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 3069 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 3070 | #endif |
02aa26ce | 3071 | /* handle \E or end of string */ |
3280af22 | 3072 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
02aa26ce | 3073 | /* if at a \E */ |
3280af22 | 3074 | if (PL_lex_casemods) { |
f54cb97a | 3075 | const char oldmod = PL_lex_casestack[--PL_lex_casemods]; |
3280af22 | 3076 | PL_lex_casestack[PL_lex_casemods] = '\0'; |
02aa26ce | 3077 | |
3792a11b NC |
3078 | if (PL_bufptr != PL_bufend |
3079 | && (oldmod == 'L' || oldmod == 'U' || oldmod == 'Q')) { | |
3280af22 NIS |
3080 | PL_bufptr += 2; |
3081 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3082 | #ifdef PERL_MAD |
3083 | if (PL_madskills) | |
cd81e915 | 3084 | PL_thistoken = newSVpvn("\\E",2); |
5db06880 | 3085 | #endif |
a0d0e21e | 3086 | } |
bbf60fe6 | 3087 | return REPORT(')'); |
79072805 | 3088 | } |
5db06880 NC |
3089 | #ifdef PERL_MAD |
3090 | while (PL_bufptr != PL_bufend && | |
3091 | PL_bufptr[0] == '\\' && PL_bufptr[1] == 'E') { | |
cd81e915 NC |
3092 | if (!PL_thiswhite) |
3093 | PL_thiswhite = newSVpvn("",0); | |
3094 | sv_catpvn(PL_thiswhite, PL_bufptr, 2); | |
5db06880 NC |
3095 | PL_bufptr += 2; |
3096 | } | |
3097 | #else | |
3280af22 NIS |
3098 | if (PL_bufptr != PL_bufend) |
3099 | PL_bufptr += 2; | |
5db06880 | 3100 | #endif |
3280af22 | 3101 | PL_lex_state = LEX_INTERPCONCAT; |
cea2e8a9 | 3102 | return yylex(); |
79072805 LW |
3103 | } |
3104 | else { | |
607df283 | 3105 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3106 | "### Saw case modifier\n"); }); |
3280af22 | 3107 | s = PL_bufptr + 1; |
6e909404 | 3108 | if (s[1] == '\\' && s[2] == 'E') { |
5db06880 | 3109 | #ifdef PERL_MAD |
cd81e915 NC |
3110 | if (!PL_thiswhite) |
3111 | PL_thiswhite = newSVpvn("",0); | |
3112 | sv_catpvn(PL_thiswhite, PL_bufptr, 4); | |
5db06880 | 3113 | #endif |
89122651 | 3114 | PL_bufptr = s + 3; |
6e909404 JH |
3115 | PL_lex_state = LEX_INTERPCONCAT; |
3116 | return yylex(); | |
a0d0e21e | 3117 | } |
6e909404 | 3118 | else { |
90771dc0 | 3119 | I32 tmp; |
5db06880 NC |
3120 | if (!PL_madskills) /* when just compiling don't need correct */ |
3121 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
3122 | tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */ | |
3792a11b | 3123 | if ((*s == 'L' || *s == 'U') && |
6e909404 JH |
3124 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) { |
3125 | PL_lex_casestack[--PL_lex_casemods] = '\0'; | |
bbf60fe6 | 3126 | return REPORT(')'); |
6e909404 JH |
3127 | } |
3128 | if (PL_lex_casemods > 10) | |
3129 | Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
3130 | PL_lex_casestack[PL_lex_casemods++] = *s; | |
3131 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
3132 | PL_lex_state = LEX_INTERPCONCAT; | |
cd81e915 | 3133 | start_force(PL_curforce); |
9ded7720 | 3134 | NEXTVAL_NEXTTOKE.ival = 0; |
6e909404 | 3135 | force_next('('); |
cd81e915 | 3136 | start_force(PL_curforce); |
6e909404 | 3137 | if (*s == 'l') |
9ded7720 | 3138 | NEXTVAL_NEXTTOKE.ival = OP_LCFIRST; |
6e909404 | 3139 | else if (*s == 'u') |
9ded7720 | 3140 | NEXTVAL_NEXTTOKE.ival = OP_UCFIRST; |
6e909404 | 3141 | else if (*s == 'L') |
9ded7720 | 3142 | NEXTVAL_NEXTTOKE.ival = OP_LC; |
6e909404 | 3143 | else if (*s == 'U') |
9ded7720 | 3144 | NEXTVAL_NEXTTOKE.ival = OP_UC; |
6e909404 | 3145 | else if (*s == 'Q') |
9ded7720 | 3146 | NEXTVAL_NEXTTOKE.ival = OP_QUOTEMETA; |
6e909404 JH |
3147 | else |
3148 | Perl_croak(aTHX_ "panic: yylex"); | |
5db06880 | 3149 | if (PL_madskills) { |
d4c19fe8 | 3150 | SV* const tmpsv = newSVpvn("",0); |
5db06880 NC |
3151 | Perl_sv_catpvf(aTHX_ tmpsv, "\\%c", *s); |
3152 | curmad('_', tmpsv); | |
3153 | } | |
6e909404 | 3154 | PL_bufptr = s + 1; |
a0d0e21e | 3155 | } |
79072805 | 3156 | force_next(FUNC); |
3280af22 NIS |
3157 | if (PL_lex_starts) { |
3158 | s = PL_bufptr; | |
3159 | PL_lex_starts = 0; | |
5db06880 NC |
3160 | #ifdef PERL_MAD |
3161 | if (PL_madskills) { | |
cd81e915 NC |
3162 | if (PL_thistoken) |
3163 | sv_free(PL_thistoken); | |
3164 | PL_thistoken = newSVpvn("",0); | |
5db06880 NC |
3165 | } |
3166 | #endif | |
131b3ad0 DM |
3167 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3168 | if (PL_lex_casemods == 1 && PL_lex_inpat) | |
3169 | OPERATOR(','); | |
3170 | else | |
3171 | Aop(OP_CONCAT); | |
79072805 LW |
3172 | } |
3173 | else | |
cea2e8a9 | 3174 | return yylex(); |
79072805 LW |
3175 | } |
3176 | ||
55497cff | 3177 | case LEX_INTERPPUSH: |
bbf60fe6 | 3178 | return REPORT(sublex_push()); |
55497cff | 3179 | |
79072805 | 3180 | case LEX_INTERPSTART: |
3280af22 | 3181 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3182 | return REPORT(sublex_done()); |
607df283 | 3183 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3184 | "### Interpolated variable\n"); }); |
3280af22 NIS |
3185 | PL_expect = XTERM; |
3186 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
3187 | PL_lex_state = LEX_INTERPNORMAL; | |
3188 | if (PL_lex_dojoin) { | |
cd81e915 | 3189 | start_force(PL_curforce); |
9ded7720 | 3190 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3191 | force_next(','); |
cd81e915 | 3192 | start_force(PL_curforce); |
a0d0e21e | 3193 | force_ident("\"", '$'); |
cd81e915 | 3194 | start_force(PL_curforce); |
9ded7720 | 3195 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3196 | force_next('$'); |
cd81e915 | 3197 | start_force(PL_curforce); |
9ded7720 | 3198 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3199 | force_next('('); |
cd81e915 | 3200 | start_force(PL_curforce); |
9ded7720 | 3201 | NEXTVAL_NEXTTOKE.ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
3202 | force_next(FUNC); |
3203 | } | |
3280af22 NIS |
3204 | if (PL_lex_starts++) { |
3205 | s = PL_bufptr; | |
5db06880 NC |
3206 | #ifdef PERL_MAD |
3207 | if (PL_madskills) { | |
cd81e915 NC |
3208 | if (PL_thistoken) |
3209 | sv_free(PL_thistoken); | |
3210 | PL_thistoken = newSVpvn("",0); | |
5db06880 NC |
3211 | } |
3212 | #endif | |
131b3ad0 DM |
3213 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3214 | if (!PL_lex_casemods && PL_lex_inpat) | |
3215 | OPERATOR(','); | |
3216 | else | |
3217 | Aop(OP_CONCAT); | |
79072805 | 3218 | } |
cea2e8a9 | 3219 | return yylex(); |
79072805 LW |
3220 | |
3221 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
3222 | if (intuit_more(PL_bufptr)) { |
3223 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
3224 | break; |
3225 | } | |
3226 | /* FALL THROUGH */ | |
3227 | ||
3228 | case LEX_INTERPEND: | |
3280af22 NIS |
3229 | if (PL_lex_dojoin) { |
3230 | PL_lex_dojoin = FALSE; | |
3231 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3232 | #ifdef PERL_MAD |
3233 | if (PL_madskills) { | |
cd81e915 NC |
3234 | if (PL_thistoken) |
3235 | sv_free(PL_thistoken); | |
3236 | PL_thistoken = newSVpvn("",0); | |
5db06880 NC |
3237 | } |
3238 | #endif | |
bbf60fe6 | 3239 | return REPORT(')'); |
79072805 | 3240 | } |
43a16006 | 3241 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 3242 | && SvEVALED(PL_lex_repl)) |
43a16006 | 3243 | { |
e9fa98b2 | 3244 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 3245 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
a0714e2c | 3246 | PL_lex_repl = NULL; |
e9fa98b2 | 3247 | } |
79072805 LW |
3248 | /* FALLTHROUGH */ |
3249 | case LEX_INTERPCONCAT: | |
3250 | #ifdef DEBUGGING | |
3280af22 | 3251 | if (PL_lex_brackets) |
cea2e8a9 | 3252 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 3253 | #endif |
3280af22 | 3254 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3255 | return REPORT(sublex_done()); |
79072805 | 3256 | |
3280af22 NIS |
3257 | if (SvIVX(PL_linestr) == '\'') { |
3258 | SV *sv = newSVsv(PL_linestr); | |
3259 | if (!PL_lex_inpat) | |
76e3520e | 3260 | sv = tokeq(sv); |
3280af22 | 3261 | else if ( PL_hints & HINT_NEW_RE ) |
b3ac6de7 | 3262 | sv = new_constant(NULL, 0, "qr", sv, sv, "q"); |
79072805 | 3263 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 3264 | s = PL_bufend; |
79072805 LW |
3265 | } |
3266 | else { | |
3280af22 | 3267 | s = scan_const(PL_bufptr); |
79072805 | 3268 | if (*s == '\\') |
3280af22 | 3269 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 3270 | else |
3280af22 | 3271 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
3272 | } |
3273 | ||
3280af22 | 3274 | if (s != PL_bufptr) { |
cd81e915 | 3275 | start_force(PL_curforce); |
5db06880 NC |
3276 | if (PL_madskills) { |
3277 | curmad('X', newSVpvn(PL_bufptr,s-PL_bufptr)); | |
3278 | } | |
9ded7720 | 3279 | NEXTVAL_NEXTTOKE = yylval; |
3280af22 | 3280 | PL_expect = XTERM; |
79072805 | 3281 | force_next(THING); |
131b3ad0 | 3282 | if (PL_lex_starts++) { |
5db06880 NC |
3283 | #ifdef PERL_MAD |
3284 | if (PL_madskills) { | |
cd81e915 NC |
3285 | if (PL_thistoken) |
3286 | sv_free(PL_thistoken); | |
3287 | PL_thistoken = newSVpvn("",0); | |
5db06880 NC |
3288 | } |
3289 | #endif | |
131b3ad0 DM |
3290 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3291 | if (!PL_lex_casemods && PL_lex_inpat) | |
3292 | OPERATOR(','); | |
3293 | else | |
3294 | Aop(OP_CONCAT); | |
3295 | } | |
79072805 | 3296 | else { |
3280af22 | 3297 | PL_bufptr = s; |
cea2e8a9 | 3298 | return yylex(); |
79072805 LW |
3299 | } |
3300 | } | |
3301 | ||
cea2e8a9 | 3302 | return yylex(); |
a0d0e21e | 3303 | case LEX_FORMLINE: |
3280af22 NIS |
3304 | PL_lex_state = LEX_NORMAL; |
3305 | s = scan_formline(PL_bufptr); | |
3306 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
3307 | goto rightbracket; |
3308 | OPERATOR(';'); | |
79072805 LW |
3309 | } |
3310 | ||
3280af22 NIS |
3311 | s = PL_bufptr; |
3312 | PL_oldoldbufptr = PL_oldbufptr; | |
3313 | PL_oldbufptr = s; | |
463ee0b2 LW |
3314 | |
3315 | retry: | |
5db06880 | 3316 | #ifdef PERL_MAD |
cd81e915 NC |
3317 | if (PL_thistoken) { |
3318 | sv_free(PL_thistoken); | |
3319 | PL_thistoken = 0; | |
5db06880 | 3320 | } |
cd81e915 | 3321 | PL_realtokenstart = s - SvPVX(PL_linestr); /* assume but undo on ws */ |
5db06880 | 3322 | #endif |
378cc40b LW |
3323 | switch (*s) { |
3324 | default: | |
7e2040f0 | 3325 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 3326 | goto keylookup; |
cea2e8a9 | 3327 | Perl_croak(aTHX_ "Unrecognized character \\x%02X", *s & 255); |
e929a76b LW |
3328 | case 4: |
3329 | case 26: | |
3330 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 3331 | case 0: |
5db06880 NC |
3332 | #ifdef PERL_MAD |
3333 | if (PL_madskills) | |
cd81e915 | 3334 | PL_faketokens = 0; |
5db06880 | 3335 | #endif |
3280af22 NIS |
3336 | if (!PL_rsfp) { |
3337 | PL_last_uni = 0; | |
3338 | PL_last_lop = 0; | |
c5ee2135 | 3339 | if (PL_lex_brackets) { |
0bd48802 AL |
3340 | yyerror(PL_lex_formbrack |
3341 | ? "Format not terminated" | |
3342 | : "Missing right curly or square bracket"); | |
c5ee2135 | 3343 | } |
4e553d73 | 3344 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 3345 | "### Tokener got EOF\n"); |
5f80b19c | 3346 | } ); |
79072805 | 3347 | TOKEN(0); |
463ee0b2 | 3348 | } |
3280af22 | 3349 | if (s++ < PL_bufend) |
a687059c | 3350 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
3351 | PL_last_uni = 0; |
3352 | PL_last_lop = 0; | |
3353 | if (!PL_in_eval && !PL_preambled) { | |
3354 | PL_preambled = TRUE; | |
5db06880 NC |
3355 | #ifdef PERL_MAD |
3356 | if (PL_madskills) | |
cd81e915 | 3357 | PL_faketokens = 1; |
5db06880 | 3358 | #endif |
3280af22 NIS |
3359 | sv_setpv(PL_linestr,incl_perldb()); |
3360 | if (SvCUR(PL_linestr)) | |
396482e1 | 3361 | sv_catpvs(PL_linestr,";"); |
3280af22 NIS |
3362 | if (PL_preambleav){ |
3363 | while(AvFILLp(PL_preambleav) >= 0) { | |
3364 | SV *tmpsv = av_shift(PL_preambleav); | |
3365 | sv_catsv(PL_linestr, tmpsv); | |
396482e1 | 3366 | sv_catpvs(PL_linestr, ";"); |
91b7def8 | 3367 | sv_free(tmpsv); |
3368 | } | |
3280af22 NIS |
3369 | sv_free((SV*)PL_preambleav); |
3370 | PL_preambleav = NULL; | |
91b7def8 | 3371 | } |
3280af22 | 3372 | if (PL_minus_n || PL_minus_p) { |
396482e1 | 3373 | sv_catpvs(PL_linestr, "LINE: while (<>) {"); |
3280af22 | 3374 | if (PL_minus_l) |
396482e1 | 3375 | sv_catpvs(PL_linestr,"chomp;"); |
3280af22 | 3376 | if (PL_minus_a) { |
3280af22 | 3377 | if (PL_minus_F) { |
3792a11b NC |
3378 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
3379 | || *PL_splitstr == '"') | |
3280af22 | 3380 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 3381 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 3382 | else { |
c8ef6a4b NC |
3383 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
3384 | bytes can be used as quoting characters. :-) */ | |
dd374669 | 3385 | const char *splits = PL_splitstr; |
91d456ae | 3386 | sv_catpvs(PL_linestr, "our @F=split(q\0"); |
48c4c863 NC |
3387 | do { |
3388 | /* Need to \ \s */ | |
dd374669 AL |
3389 | if (*splits == '\\') |
3390 | sv_catpvn(PL_linestr, splits, 1); | |
3391 | sv_catpvn(PL_linestr, splits, 1); | |
3392 | } while (*splits++); | |
48c4c863 NC |
3393 | /* This loop will embed the trailing NUL of |
3394 | PL_linestr as the last thing it does before | |
3395 | terminating. */ | |
396482e1 | 3396 | sv_catpvs(PL_linestr, ");"); |
54310121 | 3397 | } |
2304df62 AD |
3398 | } |
3399 | else | |
396482e1 | 3400 | sv_catpvs(PL_linestr,"our @F=split(' ');"); |
2304df62 | 3401 | } |
79072805 | 3402 | } |
bc9b29db | 3403 | if (PL_minus_E) |
396482e1 GA |
3404 | sv_catpvs(PL_linestr,"use feature ':5.10';"); |
3405 | sv_catpvs(PL_linestr, "\n"); | |
3280af22 NIS |
3406 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3407 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3408 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3409 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
561b68a9 | 3410 | SV * const sv = newSV(0); |
a0d0e21e LW |
3411 | |
3412 | sv_upgrade(sv, SVt_PVMG); | |
3280af22 | 3413 | sv_setsv(sv,PL_linestr); |
0ac0412a | 3414 | (void)SvIOK_on(sv); |
45977657 | 3415 | SvIV_set(sv, 0); |
36c7798d | 3416 | av_store(CopFILEAVx(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
a0d0e21e | 3417 | } |
79072805 | 3418 | goto retry; |
a687059c | 3419 | } |
e929a76b | 3420 | do { |
aa7440fb | 3421 | bof = PL_rsfp ? TRUE : FALSE; |
bd61b366 | 3422 | if ((s = filter_gets(PL_linestr, PL_rsfp, 0)) == NULL) { |
7e28d3af | 3423 | fake_eof: |
5db06880 | 3424 | #ifdef PERL_MAD |
cd81e915 | 3425 | PL_realtokenstart = -1; |
5db06880 | 3426 | #endif |
7e28d3af JH |
3427 | if (PL_rsfp) { |
3428 | if (PL_preprocess && !PL_in_eval) | |
3429 | (void)PerlProc_pclose(PL_rsfp); | |
3430 | else if ((PerlIO *)PL_rsfp == PerlIO_stdin()) | |
3431 | PerlIO_clearerr(PL_rsfp); | |
3432 | else | |
3433 | (void)PerlIO_close(PL_rsfp); | |
4608196e | 3434 | PL_rsfp = NULL; |
7e28d3af JH |
3435 | PL_doextract = FALSE; |
3436 | } | |
3437 | if (!PL_in_eval && (PL_minus_n || PL_minus_p)) { | |
5db06880 NC |
3438 | #ifdef PERL_MAD |
3439 | if (PL_madskills) | |
cd81e915 | 3440 | PL_faketokens = 1; |
5db06880 | 3441 | #endif |
a23c4656 NC |
3442 | sv_setpv(PL_linestr,PL_minus_p |
3443 | ? ";}continue{print;}" : ";}"); | |
7e28d3af JH |
3444 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3445 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3446 | PL_last_lop = PL_last_uni = NULL; |
7e28d3af JH |
3447 | PL_minus_n = PL_minus_p = 0; |
3448 | goto retry; | |
3449 | } | |
3450 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
bd61b366 | 3451 | PL_last_lop = PL_last_uni = NULL; |
c69006e4 | 3452 | sv_setpvn(PL_linestr,"",0); |
7e28d3af JH |
3453 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ |
3454 | } | |
7aa207d6 JH |
3455 | /* If it looks like the start of a BOM or raw UTF-16, |
3456 | * check if it in fact is. */ | |
3457 | else if (bof && | |
3458 | (*s == 0 || | |
3459 | *(U8*)s == 0xEF || | |
3460 | *(U8*)s >= 0xFE || | |
3461 | s[1] == 0)) { | |
226017aa | 3462 | #ifdef PERLIO_IS_STDIO |
e3f494f1 JH |
3463 | # ifdef __GNU_LIBRARY__ |
3464 | # if __GNU_LIBRARY__ == 1 /* Linux glibc5 */ | |
226017aa DD |
3465 | # define FTELL_FOR_PIPE_IS_BROKEN |
3466 | # endif | |
e3f494f1 JH |
3467 | # else |
3468 | # ifdef __GLIBC__ | |
3469 | # if __GLIBC__ == 1 /* maybe some glibc5 release had it like this? */ | |
3470 | # define FTELL_FOR_PIPE_IS_BROKEN | |
3471 | # endif | |
3472 | # endif | |
226017aa DD |
3473 | # endif |
3474 | #endif | |
3475 | #ifdef FTELL_FOR_PIPE_IS_BROKEN | |
3476 | /* This loses the possibility to detect the bof | |
3477 | * situation on perl -P when the libc5 is being used. | |
3478 | * Workaround? Maybe attach some extra state to PL_rsfp? | |
3479 | */ | |
3480 | if (!PL_preprocess) | |
7e28d3af | 3481 | bof = PerlIO_tell(PL_rsfp) == SvCUR(PL_linestr); |
226017aa | 3482 | #else |
eb160463 | 3483 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
226017aa | 3484 | #endif |
7e28d3af | 3485 | if (bof) { |
3280af22 | 3486 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 3487 | s = swallow_bom((U8*)s); |
e929a76b | 3488 | } |
378cc40b | 3489 | } |
3280af22 | 3490 | if (PL_doextract) { |
a0d0e21e | 3491 | /* Incest with pod. */ |
5db06880 NC |
3492 | #ifdef PERL_MAD |
3493 | if (PL_madskills) | |
cd81e915 | 3494 | sv_catsv(PL_thiswhite, PL_linestr); |
5db06880 | 3495 | #endif |
a0d0e21e | 3496 | if (*s == '=' && strnEQ(s, "=cut", 4)) { |
c69006e4 | 3497 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3498 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3499 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3500 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3501 | PL_doextract = FALSE; |
a0d0e21e | 3502 | } |
4e553d73 | 3503 | } |
463ee0b2 | 3504 | incline(s); |
3280af22 NIS |
3505 | } while (PL_doextract); |
3506 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
3507 | if (PERLDB_LINE && PL_curstash != PL_debstash) { | |
561b68a9 | 3508 | SV * const sv = newSV(0); |
a687059c | 3509 | |
93a17b20 | 3510 | sv_upgrade(sv, SVt_PVMG); |
3280af22 | 3511 | sv_setsv(sv,PL_linestr); |
0ac0412a | 3512 | (void)SvIOK_on(sv); |
45977657 | 3513 | SvIV_set(sv, 0); |
36c7798d | 3514 | av_store(CopFILEAVx(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
a687059c | 3515 | } |
3280af22 | 3516 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 3517 | PL_last_lop = PL_last_uni = NULL; |
57843af0 | 3518 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 3519 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 3520 | s++; |
a0d0e21e | 3521 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 3522 | s++; |
5db06880 NC |
3523 | #ifdef PERL_MAD |
3524 | if (PL_madskills) | |
cd81e915 | 3525 | PL_thiswhite = newSVpvn(PL_linestart, s - PL_linestart); |
5db06880 | 3526 | #endif |
bd61b366 | 3527 | d = NULL; |
3280af22 | 3528 | if (!PL_in_eval) { |
44a8e56a | 3529 | if (*s == '#' && *(s+1) == '!') |
3530 | d = s + 2; | |
3531 | #ifdef ALTERNATE_SHEBANG | |
3532 | else { | |
bfed75c6 | 3533 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 3534 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
3535 | d = s + (sizeof(as) - 1); | |
3536 | } | |
3537 | #endif /* ALTERNATE_SHEBANG */ | |
3538 | } | |
3539 | if (d) { | |
b8378b72 | 3540 | char *ipath; |
774d564b | 3541 | char *ipathend; |
b8378b72 | 3542 | |
774d564b | 3543 | while (isSPACE(*d)) |
b8378b72 CS |
3544 | d++; |
3545 | ipath = d; | |
774d564b | 3546 | while (*d && !isSPACE(*d)) |
3547 | d++; | |
3548 | ipathend = d; | |
3549 | ||
3550 | #ifdef ARG_ZERO_IS_SCRIPT | |
3551 | if (ipathend > ipath) { | |
3552 | /* | |
3553 | * HP-UX (at least) sets argv[0] to the script name, | |
3554 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
3555 | * at least, set argv[0] to the basename of the Perl | |
3556 | * interpreter. So, having found "#!", we'll set it right. | |
3557 | */ | |
fafc274c NC |
3558 | SV * const x = GvSV(gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, |
3559 | SVt_PV)); /* $^X */ | |
774d564b | 3560 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 3561 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 3562 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 3563 | SvSETMAGIC(x); |
3564 | } | |
556c1dec JH |
3565 | else { |
3566 | STRLEN blen; | |
3567 | STRLEN llen; | |
cfd0369c | 3568 | const char *bstart = SvPV_const(CopFILESV(PL_curcop),blen); |
9d4ba2ae | 3569 | const char * const lstart = SvPV_const(x,llen); |
556c1dec JH |
3570 | if (llen < blen) { |
3571 | bstart += blen - llen; | |
3572 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
3573 | sv_setpvn(x, ipath, ipathend - ipath); | |
3574 | SvSETMAGIC(x); | |
3575 | } | |
3576 | } | |
3577 | } | |
774d564b | 3578 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 3579 | } |
774d564b | 3580 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
3581 | |
3582 | /* | |
3583 | * Look for options. | |
3584 | */ | |
748a9306 | 3585 | d = instr(s,"perl -"); |
84e30d1a | 3586 | if (!d) { |
748a9306 | 3587 | d = instr(s,"perl"); |
84e30d1a GS |
3588 | #if defined(DOSISH) |
3589 | /* avoid getting into infinite loops when shebang | |
3590 | * line contains "Perl" rather than "perl" */ | |
3591 | if (!d) { | |
3592 | for (d = ipathend-4; d >= ipath; --d) { | |
3593 | if ((*d == 'p' || *d == 'P') | |
3594 | && !ibcmp(d, "perl", 4)) | |
3595 | { | |
3596 | break; | |
3597 | } | |
3598 | } | |
3599 | if (d < ipath) | |
bd61b366 | 3600 | d = NULL; |
84e30d1a GS |
3601 | } |
3602 | #endif | |
3603 | } | |
44a8e56a | 3604 | #ifdef ALTERNATE_SHEBANG |
3605 | /* | |
3606 | * If the ALTERNATE_SHEBANG on this system starts with a | |
3607 | * character that can be part of a Perl expression, then if | |
3608 | * we see it but not "perl", we're probably looking at the | |
3609 | * start of Perl code, not a request to hand off to some | |
3610 | * other interpreter. Similarly, if "perl" is there, but | |
3611 | * not in the first 'word' of the line, we assume the line | |
3612 | * contains the start of the Perl program. | |
44a8e56a | 3613 | */ |
3614 | if (d && *s != '#') { | |
f54cb97a | 3615 | const char *c = ipath; |
44a8e56a | 3616 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
3617 | c++; | |
3618 | if (c < d) | |
bd61b366 | 3619 | d = NULL; /* "perl" not in first word; ignore */ |
44a8e56a | 3620 | else |
3621 | *s = '#'; /* Don't try to parse shebang line */ | |
3622 | } | |
774d564b | 3623 | #endif /* ALTERNATE_SHEBANG */ |
bf4acbe4 | 3624 | #ifndef MACOS_TRADITIONAL |
748a9306 | 3625 | if (!d && |
44a8e56a | 3626 | *s == '#' && |
774d564b | 3627 | ipathend > ipath && |
3280af22 | 3628 | !PL_minus_c && |
748a9306 | 3629 | !instr(s,"indir") && |
3280af22 | 3630 | instr(PL_origargv[0],"perl")) |
748a9306 | 3631 | { |
27da23d5 | 3632 | dVAR; |
9f68db38 | 3633 | char **newargv; |
9f68db38 | 3634 | |
774d564b | 3635 | *ipathend = '\0'; |
3636 | s = ipathend + 1; | |
3280af22 | 3637 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 3638 | s++; |
3280af22 | 3639 | if (s < PL_bufend) { |
a02a5408 | 3640 | Newxz(newargv,PL_origargc+3,char*); |
9f68db38 | 3641 | newargv[1] = s; |
3280af22 | 3642 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
3643 | s++; |
3644 | *s = '\0'; | |
3280af22 | 3645 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
3646 | } |
3647 | else | |
3280af22 | 3648 | newargv = PL_origargv; |
774d564b | 3649 | newargv[0] = ipath; |
b35112e7 | 3650 | PERL_FPU_PRE_EXEC |
b4748376 | 3651 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
b35112e7 | 3652 | PERL_FPU_POST_EXEC |
cea2e8a9 | 3653 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 3654 | } |
bf4acbe4 | 3655 | #endif |
748a9306 | 3656 | if (d) { |
748a9306 | 3657 | while (*d && !isSPACE(*d)) d++; |
bf4acbe4 | 3658 | while (SPACE_OR_TAB(*d)) d++; |
748a9306 LW |
3659 | |
3660 | if (*d++ == '-') { | |
f54cb97a | 3661 | const bool switches_done = PL_doswitches; |
fb993905 GA |
3662 | const U32 oldpdb = PL_perldb; |
3663 | const bool oldn = PL_minus_n; | |
3664 | const bool oldp = PL_minus_p; | |
3665 | ||
8cc95fdb | 3666 | do { |
3ffe3ee4 | 3667 | if (*d == 'M' || *d == 'm' || *d == 'C') { |
9d4ba2ae | 3668 | const char * const m = d; |
d4c19fe8 AL |
3669 | while (*d && !isSPACE(*d)) |
3670 | d++; | |
cea2e8a9 | 3671 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
8cc95fdb | 3672 | (int)(d - m), m); |
3673 | } | |
97bd5664 | 3674 | d = moreswitches(d); |
8cc95fdb | 3675 | } while (d); |
f0b2cf55 YST |
3676 | if (PL_doswitches && !switches_done) { |
3677 | int argc = PL_origargc; | |
3678 | char **argv = PL_origargv; | |
3679 | do { | |
3680 | argc--,argv++; | |
3681 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
3682 | init_argv_symbols(argc,argv); | |
3683 | } | |
155aba94 GS |
3684 | if ((PERLDB_LINE && !oldpdb) || |
3685 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) | |
b084f20b | 3686 | /* if we have already added "LINE: while (<>) {", |
3687 | we must not do it again */ | |
748a9306 | 3688 | { |
c69006e4 | 3689 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3690 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3691 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3692 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3693 | PL_preambled = FALSE; |
84902520 | 3694 | if (PERLDB_LINE) |
3280af22 | 3695 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
3696 | goto retry; |
3697 | } | |
a0d0e21e | 3698 | } |
79072805 | 3699 | } |
9f68db38 | 3700 | } |
79072805 | 3701 | } |
3280af22 NIS |
3702 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3703 | PL_bufptr = s; | |
3704 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3705 | return yylex(); |
ae986130 | 3706 | } |
378cc40b | 3707 | goto retry; |
4fdae800 | 3708 | case '\r': |
6a27c188 | 3709 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 3710 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 3711 | Perl_croak(aTHX_ |
cc507455 | 3712 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 3713 | #endif |
4fdae800 | 3714 | case ' ': case '\t': case '\f': case 013: |
bf4acbe4 GS |
3715 | #ifdef MACOS_TRADITIONAL |
3716 | case '\312': | |
3717 | #endif | |
5db06880 | 3718 | #ifdef PERL_MAD |
cd81e915 | 3719 | PL_realtokenstart = -1; |
5db06880 NC |
3720 | s = SKIPSPACE0(s); |
3721 | #else | |
378cc40b | 3722 | s++; |
5db06880 | 3723 | #endif |
378cc40b | 3724 | goto retry; |
378cc40b | 3725 | case '#': |
e929a76b | 3726 | case '\n': |
5db06880 | 3727 | #ifdef PERL_MAD |
cd81e915 | 3728 | PL_realtokenstart = -1; |
5db06880 | 3729 | if (PL_madskills) |
cd81e915 | 3730 | PL_faketokens = 0; |
5db06880 | 3731 | #endif |
3280af22 | 3732 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
3733 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
3734 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
3735 | CopLINE_dec(PL_curcop); | |
3736 | incline(s); | |
3737 | } | |
5db06880 NC |
3738 | if (PL_madskills && !PL_lex_formbrack && !PL_in_eval) { |
3739 | s = SKIPSPACE0(s); | |
3740 | if (!PL_in_eval || PL_rsfp) | |
3741 | incline(s); | |
3742 | } | |
3743 | else { | |
3744 | d = s; | |
3745 | while (d < PL_bufend && *d != '\n') | |
3746 | d++; | |
3747 | if (d < PL_bufend) | |
3748 | d++; | |
3749 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
3750 | Perl_croak(aTHX_ "panic: input overflow"); | |
3751 | #ifdef PERL_MAD | |
3752 | if (PL_madskills) | |
cd81e915 | 3753 | PL_thiswhite = newSVpvn(s, d - s); |
5db06880 NC |
3754 | #endif |
3755 | s = d; | |
3756 | incline(s); | |
3757 | } | |
3280af22 NIS |
3758 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3759 | PL_bufptr = s; | |
3760 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3761 | return yylex(); |
a687059c | 3762 | } |
378cc40b | 3763 | } |
a687059c | 3764 | else { |
5db06880 NC |
3765 | #ifdef PERL_MAD |
3766 | if (PL_madskills && CopLINE(PL_curcop) >= 1 && !PL_lex_formbrack) { | |
3767 | if (CopLINE(PL_curcop) == 1 && s[0] == '#' && s[1] == '!') { | |
cd81e915 | 3768 | PL_faketokens = 0; |
5db06880 NC |
3769 | s = SKIPSPACE0(s); |
3770 | TOKEN(PEG); /* make sure any #! line is accessible */ | |
3771 | } | |
3772 | s = SKIPSPACE0(s); | |
3773 | } | |
3774 | else { | |
3775 | /* if (PL_madskills && PL_lex_formbrack) { */ | |
3776 | d = s; | |
3777 | while (d < PL_bufend && *d != '\n') | |
3778 | d++; | |
3779 | if (d < PL_bufend) | |
3780 | d++; | |
3781 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
3782 | Perl_croak(aTHX_ "panic: input overflow"); | |
3783 | if (PL_madskills && CopLINE(PL_curcop) >= 1) { | |
cd81e915 NC |
3784 | if (!PL_thiswhite) |
3785 | PL_thiswhite = newSVpvn("",0); | |
5db06880 | 3786 | if (CopLINE(PL_curcop) == 1) { |
cd81e915 NC |
3787 | sv_setpvn(PL_thiswhite, "", 0); |
3788 | PL_faketokens = 0; | |
5db06880 | 3789 | } |
cd81e915 | 3790 | sv_catpvn(PL_thiswhite, s, d - s); |
5db06880 NC |
3791 | } |
3792 | s = d; | |
3793 | /* } | |
3794 | *s = '\0'; | |
3795 | PL_bufend = s; */ | |
3796 | } | |
3797 | #else | |
378cc40b | 3798 | *s = '\0'; |
3280af22 | 3799 | PL_bufend = s; |
5db06880 | 3800 | #endif |
a687059c | 3801 | } |
378cc40b LW |
3802 | goto retry; |
3803 | case '-': | |
79072805 | 3804 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 | 3805 | I32 ftst = 0; |
90771dc0 | 3806 | char tmp; |
e5edeb50 | 3807 | |
378cc40b | 3808 | s++; |
3280af22 | 3809 | PL_bufptr = s; |
748a9306 LW |
3810 | tmp = *s++; |
3811 | ||
bf4acbe4 | 3812 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
3813 | s++; |
3814 | ||
3815 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 3816 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
b6007c36 DM |
3817 | DEBUG_T( { S_printbuf(aTHX_ |
3818 | "### Saw unary minus before =>, forcing word %s\n", s); | |
5f80b19c | 3819 | } ); |
748a9306 LW |
3820 | OPERATOR('-'); /* unary minus */ |
3821 | } | |
3280af22 | 3822 | PL_last_uni = PL_oldbufptr; |
748a9306 | 3823 | switch (tmp) { |
e5edeb50 JH |
3824 | case 'r': ftst = OP_FTEREAD; break; |
3825 | case 'w': ftst = OP_FTEWRITE; break; | |
3826 | case 'x': ftst = OP_FTEEXEC; break; | |
3827 | case 'o': ftst = OP_FTEOWNED; break; | |
3828 | case 'R': ftst = OP_FTRREAD; break; | |
3829 | case 'W': ftst = OP_FTRWRITE; break; | |
3830 | case 'X': ftst = OP_FTREXEC; break; | |
3831 | case 'O': ftst = OP_FTROWNED; break; | |
3832 | case 'e': ftst = OP_FTIS; break; | |
3833 | case 'z': ftst = OP_FTZERO; break; | |
3834 | case 's': ftst = OP_FTSIZE; break; | |
3835 | case 'f': ftst = OP_FTFILE; break; | |
3836 | case 'd': ftst = OP_FTDIR; break; | |
3837 | case 'l': ftst = OP_FTLINK; break; | |
3838 | case 'p': ftst = OP_FTPIPE; break; | |
3839 | case 'S': ftst = OP_FTSOCK; break; | |
3840 | case 'u': ftst = OP_FTSUID; break; | |
3841 | case 'g': ftst = OP_FTSGID; break; | |
3842 | case 'k': ftst = OP_FTSVTX; break; | |
3843 | case 'b': ftst = OP_FTBLK; break; | |
3844 | case 'c': ftst = OP_FTCHR; break; | |
3845 | case 't': ftst = OP_FTTTY; break; | |
3846 | case 'T': ftst = OP_FTTEXT; break; | |
3847 | case 'B': ftst = OP_FTBINARY; break; | |
3848 | case 'M': case 'A': case 'C': | |
fafc274c | 3849 | gv_fetchpvs("\024", GV_ADD|GV_NOTQUAL, SVt_PV); |
e5edeb50 JH |
3850 | switch (tmp) { |
3851 | case 'M': ftst = OP_FTMTIME; break; | |
3852 | case 'A': ftst = OP_FTATIME; break; | |
3853 | case 'C': ftst = OP_FTCTIME; break; | |
3854 | default: break; | |
3855 | } | |
3856 | break; | |
378cc40b | 3857 | default: |
378cc40b LW |
3858 | break; |
3859 | } | |
e5edeb50 | 3860 | if (ftst) { |
eb160463 | 3861 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 3862 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a18d764d | 3863 | "### Saw file test %c\n", (int)tmp); |
5f80b19c | 3864 | } ); |
e5edeb50 JH |
3865 | FTST(ftst); |
3866 | } | |
3867 | else { | |
3868 | /* Assume it was a minus followed by a one-letter named | |
3869 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 3870 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
17ad61e0 | 3871 | "### '-%c' looked like a file test but was not\n", |
4fccd7c6 | 3872 | (int) tmp); |
5f80b19c | 3873 | } ); |
3cf7b4c4 | 3874 | s = --PL_bufptr; |
e5edeb50 | 3875 | } |
378cc40b | 3876 | } |
90771dc0 NC |
3877 | { |
3878 | const char tmp = *s++; | |
3879 | if (*s == tmp) { | |
3880 | s++; | |
3881 | if (PL_expect == XOPERATOR) | |
3882 | TERM(POSTDEC); | |
3883 | else | |
3884 | OPERATOR(PREDEC); | |
3885 | } | |
3886 | else if (*s == '>') { | |
3887 | s++; | |
29595ff2 | 3888 | s = SKIPSPACE1(s); |
90771dc0 NC |
3889 | if (isIDFIRST_lazy_if(s,UTF)) { |
3890 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); | |
3891 | TOKEN(ARROW); | |
3892 | } | |
3893 | else if (*s == '$') | |
3894 | OPERATOR(ARROW); | |
3895 | else | |
3896 | TERM(ARROW); | |
3897 | } | |
3280af22 | 3898 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
3899 | Aop(OP_SUBTRACT); |
3900 | else { | |
3901 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
3902 | check_uni(); | |
3903 | OPERATOR('-'); /* unary minus */ | |
79072805 | 3904 | } |
2f3197b3 | 3905 | } |
79072805 | 3906 | |
378cc40b | 3907 | case '+': |
90771dc0 NC |
3908 | { |
3909 | const char tmp = *s++; | |
3910 | if (*s == tmp) { | |
3911 | s++; | |
3912 | if (PL_expect == XOPERATOR) | |
3913 | TERM(POSTINC); | |
3914 | else | |
3915 | OPERATOR(PREINC); | |
3916 | } | |
3280af22 | 3917 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
3918 | Aop(OP_ADD); |
3919 | else { | |
3920 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
3921 | check_uni(); | |
3922 | OPERATOR('+'); | |
3923 | } | |
2f3197b3 | 3924 | } |
a687059c | 3925 | |
378cc40b | 3926 | case '*': |
3280af22 NIS |
3927 | if (PL_expect != XOPERATOR) { |
3928 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
3929 | PL_expect = XOPERATOR; | |
3930 | force_ident(PL_tokenbuf, '*'); | |
3931 | if (!*PL_tokenbuf) | |
a0d0e21e | 3932 | PREREF('*'); |
79072805 | 3933 | TERM('*'); |
a687059c | 3934 | } |
79072805 LW |
3935 | s++; |
3936 | if (*s == '*') { | |
a687059c | 3937 | s++; |
79072805 | 3938 | PWop(OP_POW); |
a687059c | 3939 | } |
79072805 LW |
3940 | Mop(OP_MULTIPLY); |
3941 | ||
378cc40b | 3942 | case '%': |
3280af22 | 3943 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 3944 | ++s; |
3945 | Mop(OP_MODULO); | |
a687059c | 3946 | } |
3280af22 NIS |
3947 | PL_tokenbuf[0] = '%'; |
3948 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, TRUE); | |
3949 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 3950 | PREREF('%'); |
a687059c | 3951 | } |
3280af22 | 3952 | PL_pending_ident = '%'; |
bbce6d69 | 3953 | TERM('%'); |
a687059c | 3954 | |
378cc40b | 3955 | case '^': |
79072805 | 3956 | s++; |
a0d0e21e | 3957 | BOop(OP_BIT_XOR); |
79072805 | 3958 | case '[': |
3280af22 | 3959 | PL_lex_brackets++; |
79072805 | 3960 | /* FALL THROUGH */ |
378cc40b | 3961 | case '~': |
0d863452 RH |
3962 | if (s[1] == '~' |
3963 | && (PL_expect == XOPERATOR || PL_expect == XTERMORDORDOR) | |
ef89dcc3 | 3964 | && FEATURE_IS_ENABLED("~~")) |
0d863452 RH |
3965 | { |
3966 | s += 2; | |
3967 | Eop(OP_SMARTMATCH); | |
3968 | } | |
378cc40b | 3969 | case ',': |
90771dc0 NC |
3970 | { |
3971 | const char tmp = *s++; | |
3972 | OPERATOR(tmp); | |
3973 | } | |
a0d0e21e LW |
3974 | case ':': |
3975 | if (s[1] == ':') { | |
3976 | len = 0; | |
0bfa2a8a | 3977 | goto just_a_word_zero_gv; |
a0d0e21e LW |
3978 | } |
3979 | s++; | |
09bef843 SB |
3980 | switch (PL_expect) { |
3981 | OP *attrs; | |
5db06880 NC |
3982 | #ifdef PERL_MAD |
3983 | I32 stuffstart; | |
3984 | #endif | |
09bef843 SB |
3985 | case XOPERATOR: |
3986 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
3987 | break; | |
3988 | PL_bufptr = s; /* update in case we back off */ | |
3989 | goto grabattrs; | |
3990 | case XATTRBLOCK: | |
3991 | PL_expect = XBLOCK; | |
3992 | goto grabattrs; | |
3993 | case XATTRTERM: | |
3994 | PL_expect = XTERMBLOCK; | |
3995 | grabattrs: | |
5db06880 NC |
3996 | #ifdef PERL_MAD |
3997 | stuffstart = s - SvPVX(PL_linestr) - 1; | |
3998 | #endif | |
29595ff2 | 3999 | s = PEEKSPACE(s); |
5f66b61c | 4000 | attrs = NULL; |
7e2040f0 | 4001 | while (isIDFIRST_lazy_if(s,UTF)) { |
90771dc0 | 4002 | I32 tmp; |
09bef843 | 4003 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
f9829d6b GS |
4004 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len))) { |
4005 | if (tmp < 0) tmp = -tmp; | |
4006 | switch (tmp) { | |
4007 | case KEY_or: | |
4008 | case KEY_and: | |
c963b151 | 4009 | case KEY_err: |
f9829d6b GS |
4010 | case KEY_for: |
4011 | case KEY_unless: | |
4012 | case KEY_if: | |
4013 | case KEY_while: | |
4014 | case KEY_until: | |
4015 | goto got_attrs; | |
4016 | default: | |
4017 | break; | |
4018 | } | |
4019 | } | |
09bef843 SB |
4020 | if (*d == '(') { |
4021 | d = scan_str(d,TRUE,TRUE); | |
4022 | if (!d) { | |
09bef843 SB |
4023 | /* MUST advance bufptr here to avoid bogus |
4024 | "at end of line" context messages from yyerror(). | |
4025 | */ | |
4026 | PL_bufptr = s + len; | |
4027 | yyerror("Unterminated attribute parameter in attribute list"); | |
4028 | if (attrs) | |
4029 | op_free(attrs); | |
bbf60fe6 | 4030 | return REPORT(0); /* EOF indicator */ |
09bef843 SB |
4031 | } |
4032 | } | |
4033 | if (PL_lex_stuff) { | |
4034 | SV *sv = newSVpvn(s, len); | |
4035 | sv_catsv(sv, PL_lex_stuff); | |
4036 | attrs = append_elem(OP_LIST, attrs, | |
4037 | newSVOP(OP_CONST, 0, sv)); | |
4038 | SvREFCNT_dec(PL_lex_stuff); | |
a0714e2c | 4039 | PL_lex_stuff = NULL; |
09bef843 SB |
4040 | } |
4041 | else { | |
371fce9b | 4042 | if (len == 6 && strnEQ(s, "unique", len)) { |
1108974d | 4043 | if (PL_in_my == KEY_our) { |
371fce9b DM |
4044 | #ifdef USE_ITHREADS |
4045 | GvUNIQUE_on(cGVOPx_gv(yylval.opval)); | |
4046 | #else | |
1108974d | 4047 | /* skip to avoid loading attributes.pm */ |
371fce9b | 4048 | #endif |
df9a6019 | 4049 | deprecate(":unique"); |
1108974d | 4050 | } |
bfed75c6 | 4051 | else |
371fce9b DM |
4052 | Perl_croak(aTHX_ "The 'unique' attribute may only be applied to 'our' variables"); |
4053 | } | |
4054 | ||
d3cea301 SB |
4055 | /* NOTE: any CV attrs applied here need to be part of |
4056 | the CVf_BUILTIN_ATTRS define in cv.h! */ | |
371fce9b | 4057 | else if (!PL_in_my && len == 6 && strnEQ(s, "lvalue", len)) |
78f9721b SM |
4058 | CvLVALUE_on(PL_compcv); |
4059 | else if (!PL_in_my && len == 6 && strnEQ(s, "locked", len)) | |
4060 | CvLOCKED_on(PL_compcv); | |
4061 | else if (!PL_in_my && len == 6 && strnEQ(s, "method", len)) | |
4062 | CvMETHOD_on(PL_compcv); | |
06492da6 SF |
4063 | else if (!PL_in_my && len == 9 && strnEQ(s, "assertion", len)) |
4064 | CvASSERTION_on(PL_compcv); | |
78f9721b SM |
4065 | /* After we've set the flags, it could be argued that |
4066 | we don't need to do the attributes.pm-based setting | |
4067 | process, and shouldn't bother appending recognized | |
d3cea301 SB |
4068 | flags. To experiment with that, uncomment the |
4069 | following "else". (Note that's already been | |
4070 | uncommented. That keeps the above-applied built-in | |
4071 | attributes from being intercepted (and possibly | |
4072 | rejected) by a package's attribute routines, but is | |
4073 | justified by the performance win for the common case | |
4074 | of applying only built-in attributes.) */ | |
0256094b | 4075 | else |
78f9721b SM |
4076 | attrs = append_elem(OP_LIST, attrs, |
4077 | newSVOP(OP_CONST, 0, | |
4078 | newSVpvn(s, len))); | |
09bef843 | 4079 | } |
29595ff2 | 4080 | s = PEEKSPACE(d); |
0120eecf | 4081 | if (*s == ':' && s[1] != ':') |
29595ff2 | 4082 | s = PEEKSPACE(s+1); |
0120eecf GS |
4083 | else if (s == d) |
4084 | break; /* require real whitespace or :'s */ | |
29595ff2 | 4085 | /* XXX losing whitespace on sequential attributes here */ |
09bef843 | 4086 | } |
90771dc0 NC |
4087 | { |
4088 | const char tmp | |
4089 | = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ | |
4090 | if (*s != ';' && *s != '}' && *s != tmp | |
4091 | && (tmp != '=' || *s != ')')) { | |
4092 | const char q = ((*s == '\'') ? '"' : '\''); | |
4093 | /* If here for an expression, and parsed no attrs, back | |
4094 | off. */ | |
4095 | if (tmp == '=' && !attrs) { | |
4096 | s = PL_bufptr; | |
4097 | break; | |
4098 | } | |
4099 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
4100 | context messages from yyerror(). | |
4101 | */ | |
4102 | PL_bufptr = s; | |
4103 | yyerror( *s | |
4104 | ? Perl_form(aTHX_ "Invalid separator character " | |
4105 | "%c%c%c in attribute list", q, *s, q) | |
4106 | : "Unterminated attribute list" ); | |
4107 | if (attrs) | |
4108 | op_free(attrs); | |
4109 | OPERATOR(':'); | |
09bef843 | 4110 | } |
09bef843 | 4111 | } |
f9829d6b | 4112 | got_attrs: |
09bef843 | 4113 | if (attrs) { |
cd81e915 | 4114 | start_force(PL_curforce); |
9ded7720 | 4115 | NEXTVAL_NEXTTOKE.opval = attrs; |
cd81e915 | 4116 | CURMAD('_', PL_nextwhite); |
89122651 | 4117 | force_next(THING); |
5db06880 NC |
4118 | } |
4119 | #ifdef PERL_MAD | |
4120 | if (PL_madskills) { | |
cd81e915 | 4121 | PL_thistoken = newSVpvn(SvPVX(PL_linestr) + stuffstart, |
5db06880 | 4122 | (s - SvPVX(PL_linestr)) - stuffstart); |
09bef843 | 4123 | } |
5db06880 | 4124 | #endif |
09bef843 SB |
4125 | TOKEN(COLONATTR); |
4126 | } | |
a0d0e21e | 4127 | OPERATOR(':'); |
8990e307 LW |
4128 | case '(': |
4129 | s++; | |
3280af22 NIS |
4130 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
4131 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 4132 | else |
3280af22 | 4133 | PL_expect = XTERM; |
29595ff2 | 4134 | s = SKIPSPACE1(s); |
a0d0e21e | 4135 | TOKEN('('); |
378cc40b | 4136 | case ';': |
f4dd75d9 | 4137 | CLINE; |
90771dc0 NC |
4138 | { |
4139 | const char tmp = *s++; | |
4140 | OPERATOR(tmp); | |
4141 | } | |
378cc40b | 4142 | case ')': |
90771dc0 NC |
4143 | { |
4144 | const char tmp = *s++; | |
29595ff2 | 4145 | s = SKIPSPACE1(s); |
90771dc0 NC |
4146 | if (*s == '{') |
4147 | PREBLOCK(tmp); | |
4148 | TERM(tmp); | |
4149 | } | |
79072805 LW |
4150 | case ']': |
4151 | s++; | |
3280af22 | 4152 | if (PL_lex_brackets <= 0) |
d98d5fff | 4153 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 4154 | else |
3280af22 NIS |
4155 | --PL_lex_brackets; |
4156 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4157 | if (PL_lex_brackets == 0) { | |
a0d0e21e | 4158 | if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>')) |
3280af22 | 4159 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4160 | } |
4161 | } | |
4633a7c4 | 4162 | TERM(']'); |
79072805 LW |
4163 | case '{': |
4164 | leftbracket: | |
79072805 | 4165 | s++; |
3280af22 | 4166 | if (PL_lex_brackets > 100) { |
8edd5f42 | 4167 | Renew(PL_lex_brackstack, PL_lex_brackets + 10, char); |
8990e307 | 4168 | } |
3280af22 | 4169 | switch (PL_expect) { |
a0d0e21e | 4170 | case XTERM: |
3280af22 | 4171 | if (PL_lex_formbrack) { |
a0d0e21e LW |
4172 | s--; |
4173 | PRETERMBLOCK(DO); | |
4174 | } | |
3280af22 NIS |
4175 | if (PL_oldoldbufptr == PL_last_lop) |
4176 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4177 | else |
3280af22 | 4178 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 4179 | OPERATOR(HASHBRACK); |
a0d0e21e | 4180 | case XOPERATOR: |
bf4acbe4 | 4181 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 4182 | s++; |
44a8e56a | 4183 | d = s; |
3280af22 NIS |
4184 | PL_tokenbuf[0] = '\0'; |
4185 | if (d < PL_bufend && *d == '-') { | |
4186 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 4187 | d++; |
bf4acbe4 | 4188 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 4189 | d++; |
4190 | } | |
7e2040f0 | 4191 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 4192 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 4193 | FALSE, &len); |
bf4acbe4 | 4194 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
4195 | d++; |
4196 | if (*d == '}') { | |
f54cb97a | 4197 | const char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 4198 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
4199 | if (minus) | |
4200 | force_next('-'); | |
748a9306 LW |
4201 | } |
4202 | } | |
4203 | /* FALL THROUGH */ | |
09bef843 | 4204 | case XATTRBLOCK: |
748a9306 | 4205 | case XBLOCK: |
3280af22 NIS |
4206 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
4207 | PL_expect = XSTATE; | |
a0d0e21e | 4208 | break; |
09bef843 | 4209 | case XATTRTERM: |
a0d0e21e | 4210 | case XTERMBLOCK: |
3280af22 NIS |
4211 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
4212 | PL_expect = XSTATE; | |
a0d0e21e LW |
4213 | break; |
4214 | default: { | |
f54cb97a | 4215 | const char *t; |
3280af22 NIS |
4216 | if (PL_oldoldbufptr == PL_last_lop) |
4217 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4218 | else |
3280af22 | 4219 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
29595ff2 | 4220 | s = SKIPSPACE1(s); |
8452ff4b SB |
4221 | if (*s == '}') { |
4222 | if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) { | |
4223 | PL_expect = XTERM; | |
4224 | /* This hack is to get the ${} in the message. */ | |
4225 | PL_bufptr = s+1; | |
4226 | yyerror("syntax error"); | |
4227 | break; | |
4228 | } | |
a0d0e21e | 4229 | OPERATOR(HASHBRACK); |
8452ff4b | 4230 | } |
b8a4b1be GS |
4231 | /* This hack serves to disambiguate a pair of curlies |
4232 | * as being a block or an anon hash. Normally, expectation | |
4233 | * determines that, but in cases where we're not in a | |
4234 | * position to expect anything in particular (like inside | |
4235 | * eval"") we have to resolve the ambiguity. This code | |
4236 | * covers the case where the first term in the curlies is a | |
4237 | * quoted string. Most other cases need to be explicitly | |
a0288114 | 4238 | * disambiguated by prepending a "+" before the opening |
b8a4b1be GS |
4239 | * curly in order to force resolution as an anon hash. |
4240 | * | |
4241 | * XXX should probably propagate the outer expectation | |
4242 | * into eval"" to rely less on this hack, but that could | |
4243 | * potentially break current behavior of eval"". | |
4244 | * GSAR 97-07-21 | |
4245 | */ | |
4246 | t = s; | |
4247 | if (*s == '\'' || *s == '"' || *s == '`') { | |
4248 | /* common case: get past first string, handling escapes */ | |
3280af22 | 4249 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
4250 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
4251 | t++; | |
4252 | t++; | |
a0d0e21e | 4253 | } |
b8a4b1be | 4254 | else if (*s == 'q') { |
3280af22 | 4255 | if (++t < PL_bufend |
b8a4b1be | 4256 | && (!isALNUM(*t) |
3280af22 | 4257 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
4258 | && !isALNUM(*t)))) |
4259 | { | |
abc667d1 | 4260 | /* skip q//-like construct */ |
f54cb97a | 4261 | const char *tmps; |
b8a4b1be GS |
4262 | char open, close, term; |
4263 | I32 brackets = 1; | |
4264 | ||
3280af22 | 4265 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be | 4266 | t++; |
abc667d1 DM |
4267 | /* check for q => */ |
4268 | if (t+1 < PL_bufend && t[0] == '=' && t[1] == '>') { | |
4269 | OPERATOR(HASHBRACK); | |
4270 | } | |
b8a4b1be GS |
4271 | term = *t; |
4272 | open = term; | |
4273 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
4274 | term = tmps[5]; | |
4275 | close = term; | |
4276 | if (open == close) | |
3280af22 NIS |
4277 | for (t++; t < PL_bufend; t++) { |
4278 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 4279 | t++; |
6d07e5e9 | 4280 | else if (*t == open) |
b8a4b1be GS |
4281 | break; |
4282 | } | |
abc667d1 | 4283 | else { |
3280af22 NIS |
4284 | for (t++; t < PL_bufend; t++) { |
4285 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 4286 | t++; |
6d07e5e9 | 4287 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
4288 | break; |
4289 | else if (*t == open) | |
4290 | brackets++; | |
4291 | } | |
abc667d1 DM |
4292 | } |
4293 | t++; | |
b8a4b1be | 4294 | } |
abc667d1 DM |
4295 | else |
4296 | /* skip plain q word */ | |
4297 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) | |
4298 | t += UTF8SKIP(t); | |
a0d0e21e | 4299 | } |
7e2040f0 | 4300 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 4301 | t += UTF8SKIP(t); |
7e2040f0 | 4302 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 4303 | t += UTF8SKIP(t); |
a0d0e21e | 4304 | } |
3280af22 | 4305 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 4306 | t++; |
b8a4b1be GS |
4307 | /* if comma follows first term, call it an anon hash */ |
4308 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 4309 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 4310 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 4311 | OPERATOR(HASHBRACK); |
3280af22 | 4312 | if (PL_expect == XREF) |
4e4e412b | 4313 | PL_expect = XTERM; |
a0d0e21e | 4314 | else { |
3280af22 NIS |
4315 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
4316 | PL_expect = XSTATE; | |
a0d0e21e | 4317 | } |
8990e307 | 4318 | } |
a0d0e21e | 4319 | break; |
463ee0b2 | 4320 | } |
57843af0 | 4321 | yylval.ival = CopLINE(PL_curcop); |
79072805 | 4322 | if (isSPACE(*s) || *s == '#') |
3280af22 | 4323 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 4324 | TOKEN('{'); |
378cc40b | 4325 | case '}': |
79072805 LW |
4326 | rightbracket: |
4327 | s++; | |
3280af22 | 4328 | if (PL_lex_brackets <= 0) |
d98d5fff | 4329 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 4330 | else |
3280af22 | 4331 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 4332 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
4333 | PL_lex_formbrack = 0; |
4334 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4335 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
4336 | if (PL_expect & XFAKEBRACK) { |
4337 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
4338 | PL_lex_state = LEX_INTERPEND; |
4339 | PL_bufptr = s; | |
5db06880 NC |
4340 | #if 0 |
4341 | if (PL_madskills) { | |
cd81e915 NC |
4342 | if (!PL_thiswhite) |
4343 | PL_thiswhite = newSVpvn("",0); | |
4344 | sv_catpvn(PL_thiswhite,"}",1); | |
5db06880 NC |
4345 | } |
4346 | #endif | |
cea2e8a9 | 4347 | return yylex(); /* ignore fake brackets */ |
79072805 | 4348 | } |
fa83b5b6 | 4349 | if (*s == '-' && s[1] == '>') |
3280af22 | 4350 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 4351 | else if (*s != '[' && *s != '{') |
3280af22 | 4352 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4353 | } |
4354 | } | |
9059aa12 LW |
4355 | if (PL_expect & XFAKEBRACK) { |
4356 | PL_expect &= XENUMMASK; | |
3280af22 | 4357 | PL_bufptr = s; |
cea2e8a9 | 4358 | return yylex(); /* ignore fake brackets */ |
748a9306 | 4359 | } |
cd81e915 | 4360 | start_force(PL_curforce); |
5db06880 NC |
4361 | if (PL_madskills) { |
4362 | curmad('X', newSVpvn(s-1,1)); | |
cd81e915 | 4363 | CURMAD('_', PL_thiswhite); |
5db06880 | 4364 | } |
79072805 | 4365 | force_next('}'); |
5db06880 | 4366 | #ifdef PERL_MAD |
cd81e915 NC |
4367 | if (!PL_thistoken) |
4368 | PL_thistoken = newSVpvn("",0); | |
5db06880 | 4369 | #endif |
79072805 | 4370 | TOKEN(';'); |
378cc40b LW |
4371 | case '&': |
4372 | s++; | |
90771dc0 | 4373 | if (*s++ == '&') |
a0d0e21e | 4374 | AOPERATOR(ANDAND); |
378cc40b | 4375 | s--; |
3280af22 | 4376 | if (PL_expect == XOPERATOR) { |
041457d9 DM |
4377 | if (PL_bufptr == PL_linestart && ckWARN(WARN_SEMICOLON) |
4378 | && isIDFIRST_lazy_if(s,UTF)) | |
7e2040f0 | 4379 | { |
57843af0 | 4380 | CopLINE_dec(PL_curcop); |
9014280d | 4381 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 4382 | CopLINE_inc(PL_curcop); |
463ee0b2 | 4383 | } |
79072805 | 4384 | BAop(OP_BIT_AND); |
463ee0b2 | 4385 | } |
79072805 | 4386 | |
3280af22 NIS |
4387 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
4388 | if (*PL_tokenbuf) { | |
4389 | PL_expect = XOPERATOR; | |
4390 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 4391 | } |
79072805 LW |
4392 | else |
4393 | PREREF('&'); | |
c07a80fd | 4394 | yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
4395 | TERM('&'); |
4396 | ||
378cc40b LW |
4397 | case '|': |
4398 | s++; | |
90771dc0 | 4399 | if (*s++ == '|') |
a0d0e21e | 4400 | AOPERATOR(OROR); |
378cc40b | 4401 | s--; |
79072805 | 4402 | BOop(OP_BIT_OR); |
378cc40b LW |
4403 | case '=': |
4404 | s++; | |
748a9306 | 4405 | { |
90771dc0 NC |
4406 | const char tmp = *s++; |
4407 | if (tmp == '=') | |
4408 | Eop(OP_EQ); | |
4409 | if (tmp == '>') | |
4410 | OPERATOR(','); | |
4411 | if (tmp == '~') | |
4412 | PMop(OP_MATCH); | |
4413 | if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX) | |
4414 | && strchr("+-*/%.^&|<",tmp)) | |
4415 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4416 | "Reversed %c= operator",(int)tmp); | |
4417 | s--; | |
4418 | if (PL_expect == XSTATE && isALPHA(tmp) && | |
4419 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
4420 | { | |
4421 | if (PL_in_eval && !PL_rsfp) { | |
4422 | d = PL_bufend; | |
4423 | while (s < d) { | |
4424 | if (*s++ == '\n') { | |
4425 | incline(s); | |
4426 | if (strnEQ(s,"=cut",4)) { | |
4427 | s = strchr(s,'\n'); | |
4428 | if (s) | |
4429 | s++; | |
4430 | else | |
4431 | s = d; | |
4432 | incline(s); | |
4433 | goto retry; | |
4434 | } | |
4435 | } | |
a5f75d66 | 4436 | } |
90771dc0 | 4437 | goto retry; |
a5f75d66 | 4438 | } |
5db06880 NC |
4439 | #ifdef PERL_MAD |
4440 | if (PL_madskills) { | |
cd81e915 NC |
4441 | if (!PL_thiswhite) |
4442 | PL_thiswhite = newSVpvn("",0); | |
4443 | sv_catpvn(PL_thiswhite, PL_linestart, | |
5db06880 NC |
4444 | PL_bufend - PL_linestart); |
4445 | } | |
4446 | #endif | |
90771dc0 NC |
4447 | s = PL_bufend; |
4448 | PL_doextract = TRUE; | |
4449 | goto retry; | |
a5f75d66 | 4450 | } |
a0d0e21e | 4451 | } |
3280af22 | 4452 | if (PL_lex_brackets < PL_lex_formbrack) { |
f54cb97a | 4453 | const char *t; |
51882d45 | 4454 | #ifdef PERL_STRICT_CR |
bf4acbe4 | 4455 | for (t = s; SPACE_OR_TAB(*t); t++) ; |
51882d45 | 4456 | #else |
bf4acbe4 | 4457 | for (t = s; SPACE_OR_TAB(*t) || *t == '\r'; t++) ; |
51882d45 | 4458 | #endif |
a0d0e21e LW |
4459 | if (*t == '\n' || *t == '#') { |
4460 | s--; | |
3280af22 | 4461 | PL_expect = XBLOCK; |
a0d0e21e LW |
4462 | goto leftbracket; |
4463 | } | |
79072805 | 4464 | } |
a0d0e21e LW |
4465 | yylval.ival = 0; |
4466 | OPERATOR(ASSIGNOP); | |
378cc40b LW |
4467 | case '!': |
4468 | s++; | |
90771dc0 NC |
4469 | { |
4470 | const char tmp = *s++; | |
4471 | if (tmp == '=') { | |
4472 | /* was this !=~ where !~ was meant? | |
4473 | * warn on m:!=~\s+([/?]|[msy]\W|tr\W): */ | |
4474 | ||
4475 | if (*s == '~' && ckWARN(WARN_SYNTAX)) { | |
4476 | const char *t = s+1; | |
4477 | ||
4478 | while (t < PL_bufend && isSPACE(*t)) | |
4479 | ++t; | |
4480 | ||
4481 | if (*t == '/' || *t == '?' || | |
4482 | ((*t == 'm' || *t == 's' || *t == 'y') | |
4483 | && !isALNUM(t[1])) || | |
4484 | (*t == 't' && t[1] == 'r' && !isALNUM(t[2]))) | |
4485 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4486 | "!=~ should be !~"); | |
4487 | } | |
4488 | Eop(OP_NE); | |
4489 | } | |
4490 | if (tmp == '~') | |
4491 | PMop(OP_NOT); | |
4492 | } | |
378cc40b LW |
4493 | s--; |
4494 | OPERATOR('!'); | |
4495 | case '<': | |
3280af22 | 4496 | if (PL_expect != XOPERATOR) { |
93a17b20 | 4497 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 4498 | check_uni(); |
79072805 LW |
4499 | if (s[1] == '<') |
4500 | s = scan_heredoc(s); | |
4501 | else | |
4502 | s = scan_inputsymbol(s); | |
4503 | TERM(sublex_start()); | |
378cc40b LW |
4504 | } |
4505 | s++; | |
90771dc0 NC |
4506 | { |
4507 | char tmp = *s++; | |
4508 | if (tmp == '<') | |
4509 | SHop(OP_LEFT_SHIFT); | |
4510 | if (tmp == '=') { | |
4511 | tmp = *s++; | |
4512 | if (tmp == '>') | |
4513 | Eop(OP_NCMP); | |
4514 | s--; | |
4515 | Rop(OP_LE); | |
4516 | } | |
395c3793 | 4517 | } |
378cc40b | 4518 | s--; |
79072805 | 4519 | Rop(OP_LT); |
378cc40b LW |
4520 | case '>': |
4521 | s++; | |
90771dc0 NC |
4522 | { |
4523 | const char tmp = *s++; | |
4524 | if (tmp == '>') | |
4525 | SHop(OP_RIGHT_SHIFT); | |
d4c19fe8 | 4526 | else if (tmp == '=') |
90771dc0 NC |
4527 | Rop(OP_GE); |
4528 | } | |
378cc40b | 4529 | s--; |
79072805 | 4530 | Rop(OP_GT); |
378cc40b LW |
4531 | |
4532 | case '$': | |
bbce6d69 | 4533 | CLINE; |
4534 | ||
3280af22 NIS |
4535 | if (PL_expect == XOPERATOR) { |
4536 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4537 | PL_expect = XTERM; | |
c445ea15 | 4538 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4539 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4540 | } |
8990e307 | 4541 | } |
a0d0e21e | 4542 | |
7e2040f0 | 4543 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-", s[2]))) { |
3280af22 | 4544 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
4545 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
4546 | sizeof PL_tokenbuf - 1, FALSE); | |
4547 | if (PL_expect == XOPERATOR) | |
4548 | no_op("Array length", s); | |
3280af22 | 4549 | if (!PL_tokenbuf[1]) |
a0d0e21e | 4550 | PREREF(DOLSHARP); |
3280af22 NIS |
4551 | PL_expect = XOPERATOR; |
4552 | PL_pending_ident = '#'; | |
463ee0b2 | 4553 | TOKEN(DOLSHARP); |
79072805 | 4554 | } |
bbce6d69 | 4555 | |
3280af22 | 4556 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
4557 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
4558 | sizeof PL_tokenbuf - 1, FALSE); | |
4559 | if (PL_expect == XOPERATOR) | |
4560 | no_op("Scalar", s); | |
3280af22 NIS |
4561 | if (!PL_tokenbuf[1]) { |
4562 | if (s == PL_bufend) | |
bbce6d69 | 4563 | yyerror("Final $ should be \\$ or $name"); |
4564 | PREREF('$'); | |
8990e307 | 4565 | } |
a0d0e21e | 4566 | |
bbce6d69 | 4567 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 4568 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
bbce6d69 | 4569 | yylval.opval = newSVOP(OP_CONST, 0, |
fc15ae8f | 4570 | newSViv(CopARYBASE_get(&PL_compiling))); |
bbce6d69 | 4571 | yylval.opval->op_private = OPpCONST_ARYBASE; |
4572 | TERM(THING); | |
4573 | } | |
4574 | ||
ff68c719 | 4575 | d = s; |
90771dc0 NC |
4576 | { |
4577 | const char tmp = *s; | |
4578 | if (PL_lex_state == LEX_NORMAL) | |
29595ff2 | 4579 | s = SKIPSPACE1(s); |
ff68c719 | 4580 | |
90771dc0 NC |
4581 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) |
4582 | && intuit_more(s)) { | |
4583 | if (*s == '[') { | |
4584 | PL_tokenbuf[0] = '@'; | |
4585 | if (ckWARN(WARN_SYNTAX)) { | |
4586 | char *t; | |
4587 | for(t = s + 1; | |
4588 | isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$'; | |
4589 | t++) ; | |
4590 | if (*t++ == ',') { | |
29595ff2 | 4591 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
90771dc0 NC |
4592 | while (t < PL_bufend && *t != ']') |
4593 | t++; | |
9014280d | 4594 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
90771dc0 | 4595 | "Multidimensional syntax %.*s not supported", |
36c7798d | 4596 | (int)((t - PL_bufptr) + 1), PL_bufptr); |
90771dc0 | 4597 | } |
748a9306 | 4598 | } |
93a17b20 | 4599 | } |
90771dc0 NC |
4600 | else if (*s == '{') { |
4601 | char *t; | |
4602 | PL_tokenbuf[0] = '%'; | |
4603 | if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX) | |
4604 | && (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
4605 | { | |
4606 | char tmpbuf[sizeof PL_tokenbuf]; | |
4607 | for (t++; isSPACE(*t); t++) ; | |
4608 | if (isIDFIRST_lazy_if(t,UTF)) { | |
5f66b61c | 4609 | STRLEN dummylen; |
90771dc0 | 4610 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, |
5f66b61c | 4611 | &dummylen); |
90771dc0 NC |
4612 | for (; isSPACE(*t); t++) ; |
4613 | if (*t == ';' && get_cv(tmpbuf, FALSE)) | |
4614 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4615 | "You need to quote \"%s\"", | |
4616 | tmpbuf); | |
4617 | } | |
4618 | } | |
4619 | } | |
93a17b20 | 4620 | } |
bbce6d69 | 4621 | |
90771dc0 NC |
4622 | PL_expect = XOPERATOR; |
4623 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { | |
4624 | const bool islop = (PL_last_lop == PL_oldoldbufptr); | |
4625 | if (!islop || PL_last_lop_op == OP_GREPSTART) | |
4626 | PL_expect = XOPERATOR; | |
4627 | else if (strchr("$@\"'`q", *s)) | |
4628 | PL_expect = XTERM; /* e.g. print $fh "foo" */ | |
4629 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) | |
4630 | PL_expect = XTERM; /* e.g. print $fh &sub */ | |
4631 | else if (isIDFIRST_lazy_if(s,UTF)) { | |
4632 | char tmpbuf[sizeof PL_tokenbuf]; | |
4633 | int t2; | |
4634 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
4635 | if ((t2 = keyword(tmpbuf, len))) { | |
4636 | /* binary operators exclude handle interpretations */ | |
4637 | switch (t2) { | |
4638 | case -KEY_x: | |
4639 | case -KEY_eq: | |
4640 | case -KEY_ne: | |
4641 | case -KEY_gt: | |
4642 | case -KEY_lt: | |
4643 | case -KEY_ge: | |
4644 | case -KEY_le: | |
4645 | case -KEY_cmp: | |
4646 | break; | |
4647 | default: | |
4648 | PL_expect = XTERM; /* e.g. print $fh length() */ | |
4649 | break; | |
4650 | } | |
4651 | } | |
4652 | else { | |
4653 | PL_expect = XTERM; /* e.g. print $fh subr() */ | |
84902520 TB |
4654 | } |
4655 | } | |
90771dc0 NC |
4656 | else if (isDIGIT(*s)) |
4657 | PL_expect = XTERM; /* e.g. print $fh 3 */ | |
4658 | else if (*s == '.' && isDIGIT(s[1])) | |
4659 | PL_expect = XTERM; /* e.g. print $fh .3 */ | |
4660 | else if ((*s == '?' || *s == '-' || *s == '+') | |
4661 | && !isSPACE(s[1]) && s[1] != '=') | |
4662 | PL_expect = XTERM; /* e.g. print $fh -1 */ | |
4663 | else if (*s == '/' && !isSPACE(s[1]) && s[1] != '=' | |
4664 | && s[1] != '/') | |
4665 | PL_expect = XTERM; /* e.g. print $fh /.../ | |
4666 | XXX except DORDOR operator | |
4667 | */ | |
4668 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) | |
4669 | && s[2] != '=') | |
4670 | PL_expect = XTERM; /* print $fh <<"EOF" */ | |
93a17b20 | 4671 | } |
bbce6d69 | 4672 | } |
3280af22 | 4673 | PL_pending_ident = '$'; |
79072805 | 4674 | TOKEN('$'); |
378cc40b LW |
4675 | |
4676 | case '@': | |
3280af22 | 4677 | if (PL_expect == XOPERATOR) |
bbce6d69 | 4678 | no_op("Array", s); |
3280af22 NIS |
4679 | PL_tokenbuf[0] = '@'; |
4680 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
4681 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 4682 | PREREF('@'); |
4683 | } | |
3280af22 | 4684 | if (PL_lex_state == LEX_NORMAL) |
29595ff2 | 4685 | s = SKIPSPACE1(s); |
3280af22 | 4686 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 4687 | if (*s == '{') |
3280af22 | 4688 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
4689 | |
4690 | /* Warn about @ where they meant $. */ | |
041457d9 DM |
4691 | if (*s == '[' || *s == '{') { |
4692 | if (ckWARN(WARN_SYNTAX)) { | |
f54cb97a | 4693 | const char *t = s + 1; |
7e2040f0 | 4694 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
4695 | t++; |
4696 | if (*t == '}' || *t == ']') { | |
4697 | t++; | |
29595ff2 | 4698 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
9014280d | 4699 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 4700 | "Scalar value %.*s better written as $%.*s", |
36c7798d DM |
4701 | (int)(t-PL_bufptr), PL_bufptr, |
4702 | (int)(t-PL_bufptr-1), PL_bufptr+1); | |
a0d0e21e | 4703 | } |
93a17b20 LW |
4704 | } |
4705 | } | |
463ee0b2 | 4706 | } |
3280af22 | 4707 | PL_pending_ident = '@'; |
79072805 | 4708 | TERM('@'); |
378cc40b | 4709 | |
c963b151 | 4710 | case '/': /* may be division, defined-or, or pattern */ |
6f33ba73 RGS |
4711 | if (PL_expect == XTERMORDORDOR && s[1] == '/') { |
4712 | s += 2; | |
4713 | AOPERATOR(DORDOR); | |
4714 | } | |
c963b151 BD |
4715 | case '?': /* may either be conditional or pattern */ |
4716 | if(PL_expect == XOPERATOR) { | |
90771dc0 | 4717 | char tmp = *s++; |
c963b151 BD |
4718 | if(tmp == '?') { |
4719 | OPERATOR('?'); | |
4720 | } | |
4721 | else { | |
4722 | tmp = *s++; | |
4723 | if(tmp == '/') { | |
4724 | /* A // operator. */ | |
4725 | AOPERATOR(DORDOR); | |
4726 | } | |
4727 | else { | |
4728 | s--; | |
4729 | Mop(OP_DIVIDE); | |
4730 | } | |
4731 | } | |
4732 | } | |
4733 | else { | |
4734 | /* Disable warning on "study /blah/" */ | |
4735 | if (PL_oldoldbufptr == PL_last_uni | |
4736 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
4737 | || memNE(PL_last_uni, "study", 5) | |
4738 | || isALNUM_lazy_if(PL_last_uni+5,UTF) | |
4739 | )) | |
4740 | check_uni(); | |
4741 | s = scan_pat(s,OP_MATCH); | |
4742 | TERM(sublex_start()); | |
4743 | } | |
378cc40b LW |
4744 | |
4745 | case '.': | |
51882d45 GS |
4746 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
4747 | #ifdef PERL_STRICT_CR | |
4748 | && s[1] == '\n' | |
4749 | #else | |
4750 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
4751 | #endif | |
4752 | && (s == PL_linestart || s[-1] == '\n') ) | |
4753 | { | |
3280af22 NIS |
4754 | PL_lex_formbrack = 0; |
4755 | PL_expect = XSTATE; | |
79072805 LW |
4756 | goto rightbracket; |
4757 | } | |
3280af22 | 4758 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
90771dc0 | 4759 | char tmp = *s++; |
a687059c LW |
4760 | if (*s == tmp) { |
4761 | s++; | |
2f3197b3 LW |
4762 | if (*s == tmp) { |
4763 | s++; | |
79072805 | 4764 | yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
4765 | } |
4766 | else | |
79072805 | 4767 | yylval.ival = 0; |
378cc40b | 4768 | OPERATOR(DOTDOT); |
a687059c | 4769 | } |
3280af22 | 4770 | if (PL_expect != XOPERATOR) |
2f3197b3 | 4771 | check_uni(); |
79072805 | 4772 | Aop(OP_CONCAT); |
378cc40b LW |
4773 | } |
4774 | /* FALL THROUGH */ | |
4775 | case '0': case '1': case '2': case '3': case '4': | |
4776 | case '5': case '6': case '7': case '8': case '9': | |
b73d6f50 | 4777 | s = scan_num(s, &yylval); |
b6007c36 | 4778 | DEBUG_T( { S_printbuf(aTHX_ "### Saw number in %s\n", s); } ); |
3280af22 | 4779 | if (PL_expect == XOPERATOR) |
8990e307 | 4780 | no_op("Number",s); |
79072805 LW |
4781 | TERM(THING); |
4782 | ||
4783 | case '\'': | |
5db06880 | 4784 | s = scan_str(s,!!PL_madskills,FALSE); |
b6007c36 | 4785 | DEBUG_T( { S_printbuf(aTHX_ "### Saw string before %s\n", s); } ); |
3280af22 NIS |
4786 | if (PL_expect == XOPERATOR) { |
4787 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4788 | PL_expect = XTERM; | |
c445ea15 | 4789 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4790 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4791 | } |
463ee0b2 | 4792 | else |
8990e307 | 4793 | no_op("String",s); |
463ee0b2 | 4794 | } |
79072805 | 4795 | if (!s) |
d4c19fe8 | 4796 | missingterm(NULL); |
79072805 LW |
4797 | yylval.ival = OP_CONST; |
4798 | TERM(sublex_start()); | |
4799 | ||
4800 | case '"': | |
5db06880 | 4801 | s = scan_str(s,!!PL_madskills,FALSE); |
b6007c36 | 4802 | DEBUG_T( { S_printbuf(aTHX_ "### Saw string before %s\n", s); } ); |
3280af22 NIS |
4803 | if (PL_expect == XOPERATOR) { |
4804 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4805 | PL_expect = XTERM; | |
c445ea15 | 4806 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4807 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4808 | } |
463ee0b2 | 4809 | else |
8990e307 | 4810 | no_op("String",s); |
463ee0b2 | 4811 | } |
79072805 | 4812 | if (!s) |
d4c19fe8 | 4813 | missingterm(NULL); |
4633a7c4 | 4814 | yylval.ival = OP_CONST; |
cfd0369c NC |
4815 | /* FIXME. I think that this can be const if char *d is replaced by |
4816 | more localised variables. */ | |
3280af22 | 4817 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
63cd0674 | 4818 | if (*d == '$' || *d == '@' || *d == '\\' || !UTF8_IS_INVARIANT((U8)*d)) { |
4633a7c4 LW |
4819 | yylval.ival = OP_STRINGIFY; |
4820 | break; | |
4821 | } | |
4822 | } | |
79072805 LW |
4823 | TERM(sublex_start()); |
4824 | ||
4825 | case '`': | |
5db06880 | 4826 | s = scan_str(s,!!PL_madskills,FALSE); |
b6007c36 | 4827 | DEBUG_T( { S_printbuf(aTHX_ "### Saw backtick string before %s\n", s); } ); |
3280af22 | 4828 | if (PL_expect == XOPERATOR) |
8990e307 | 4829 | no_op("Backticks",s); |
79072805 | 4830 | if (!s) |
d4c19fe8 | 4831 | missingterm(NULL); |
79072805 LW |
4832 | yylval.ival = OP_BACKTICK; |
4833 | set_csh(); | |
4834 | TERM(sublex_start()); | |
4835 | ||
4836 | case '\\': | |
4837 | s++; | |
041457d9 | 4838 | if (PL_lex_inwhat && isDIGIT(*s) && ckWARN(WARN_SYNTAX)) |
9014280d | 4839 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression", |
599cee73 | 4840 | *s, *s); |
3280af22 | 4841 | if (PL_expect == XOPERATOR) |
8990e307 | 4842 | no_op("Backslash",s); |
79072805 LW |
4843 | OPERATOR(REFGEN); |
4844 | ||
a7cb1f99 | 4845 | case 'v': |
e526c9e6 | 4846 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
f54cb97a | 4847 | char *start = s + 2; |
dd629d5b | 4848 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
4849 | start++; |
4850 | if (*start == '.' && isDIGIT(start[1])) { | |
b73d6f50 | 4851 | s = scan_num(s, &yylval); |
a7cb1f99 GS |
4852 | TERM(THING); |
4853 | } | |
e526c9e6 | 4854 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
6f33ba73 RGS |
4855 | else if (!isALPHA(*start) && (PL_expect == XTERM |
4856 | || PL_expect == XREF || PL_expect == XSTATE | |
4857 | || PL_expect == XTERMORDORDOR)) { | |
d4c19fe8 | 4858 | /* XXX Use gv_fetchpvn rather than stomping on a const string */ |
f54cb97a | 4859 | const char c = *start; |
e526c9e6 GS |
4860 | GV *gv; |
4861 | *start = '\0'; | |
f776e3cd | 4862 | gv = gv_fetchpv(s, 0, SVt_PVCV); |
e526c9e6 GS |
4863 | *start = c; |
4864 | if (!gv) { | |
b73d6f50 | 4865 | s = scan_num(s, &yylval); |
e526c9e6 GS |
4866 | TERM(THING); |
4867 | } | |
4868 | } | |
a7cb1f99 GS |
4869 | } |
4870 | goto keylookup; | |
79072805 | 4871 | case 'x': |
3280af22 | 4872 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
4873 | s++; |
4874 | Mop(OP_REPEAT); | |
2f3197b3 | 4875 | } |
79072805 LW |
4876 | goto keylookup; |
4877 | ||
378cc40b | 4878 | case '_': |
79072805 LW |
4879 | case 'a': case 'A': |
4880 | case 'b': case 'B': | |
4881 | case 'c': case 'C': | |
4882 | case 'd': case 'D': | |
4883 | case 'e': case 'E': | |
4884 | case 'f': case 'F': | |
4885 | case 'g': case 'G': | |
4886 | case 'h': case 'H': | |
4887 | case 'i': case 'I': | |
4888 | case 'j': case 'J': | |
4889 | case 'k': case 'K': | |
4890 | case 'l': case 'L': | |
4891 | case 'm': case 'M': | |
4892 | case 'n': case 'N': | |
4893 | case 'o': case 'O': | |
4894 | case 'p': case 'P': | |
4895 | case 'q': case 'Q': | |
4896 | case 'r': case 'R': | |
4897 | case 's': case 'S': | |
4898 | case 't': case 'T': | |
4899 | case 'u': case 'U': | |
a7cb1f99 | 4900 | case 'V': |
79072805 LW |
4901 | case 'w': case 'W': |
4902 | case 'X': | |
4903 | case 'y': case 'Y': | |
4904 | case 'z': case 'Z': | |
4905 | ||
49dc05e3 | 4906 | keylookup: { |
90771dc0 | 4907 | I32 tmp; |
0bfa2a8a | 4908 | I32 orig_keyword = 0; |
cbbf8932 AL |
4909 | GV *gv = NULL; |
4910 | GV **gvp = NULL; | |
49dc05e3 | 4911 | |
3280af22 NIS |
4912 | PL_bufptr = s; |
4913 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 4914 | |
4915 | /* Some keywords can be followed by any delimiter, including ':' */ | |
155aba94 GS |
4916 | tmp = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
4917 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || | |
4918 | (PL_tokenbuf[0] == 'q' && | |
4919 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 4920 | |
4921 | /* x::* is just a word, unless x is "CORE" */ | |
3280af22 | 4922 | if (!tmp && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
4923 | goto just_a_word; |
4924 | ||
3643fb5f | 4925 | d = s; |
3280af22 | 4926 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
4927 | d++; /* no comments skipped here, or s### is misparsed */ |
4928 | ||
4929 | /* Is this a label? */ | |
3280af22 NIS |
4930 | if (!tmp && PL_expect == XSTATE |
4931 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
8ebc5c01 | 4932 | s = d + 1; |
3280af22 | 4933 | yylval.pval = savepv(PL_tokenbuf); |
8ebc5c01 | 4934 | CLINE; |
4935 | TOKEN(LABEL); | |
3643fb5f CS |
4936 | } |
4937 | ||
4938 | /* Check for keywords */ | |
3280af22 | 4939 | tmp = keyword(PL_tokenbuf, len); |
748a9306 LW |
4940 | |
4941 | /* Is this a word before a => operator? */ | |
1c3923b3 | 4942 | if (*d == '=' && d[1] == '>') { |
748a9306 | 4943 | CLINE; |
d0a148a6 NC |
4944 | yylval.opval |
4945 | = (OP*)newSVOP(OP_CONST, 0, | |
4946 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
748a9306 LW |
4947 | yylval.opval->op_private = OPpCONST_BARE; |
4948 | TERM(WORD); | |
4949 | } | |
4950 | ||
a0d0e21e | 4951 | if (tmp < 0) { /* second-class keyword? */ |
cbbf8932 AL |
4952 | GV *ogv = NULL; /* override (winner) */ |
4953 | GV *hgv = NULL; /* hidden (loser) */ | |
3280af22 | 4954 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 4955 | CV *cv; |
90e5519e | 4956 | if ((gv = gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVCV)) && |
56f7f34b CS |
4957 | (cv = GvCVu(gv))) |
4958 | { | |
4959 | if (GvIMPORTED_CV(gv)) | |
4960 | ogv = gv; | |
4961 | else if (! CvMETHOD(cv)) | |
4962 | hgv = gv; | |
4963 | } | |
4964 | if (!ogv && | |
3280af22 NIS |
4965 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
4966 | (gv = *gvp) != (GV*)&PL_sv_undef && | |
56f7f34b CS |
4967 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
4968 | { | |
4969 | ogv = gv; | |
4970 | } | |
4971 | } | |
4972 | if (ogv) { | |
30fe34ed | 4973 | orig_keyword = tmp; |
56f7f34b | 4974 | tmp = 0; /* overridden by import or by GLOBAL */ |
6e7b2336 GS |
4975 | } |
4976 | else if (gv && !gvp | |
4977 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
d0456cad | 4978 | && GvCVu(gv) |
017a3ce5 | 4979 | && !hv_fetchs(GvHVn(PL_incgv), "Thread.pm", FALSE)) |
6e7b2336 GS |
4980 | { |
4981 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 4982 | } |
56f7f34b CS |
4983 | else { /* no override */ |
4984 | tmp = -tmp; | |
ac206dc8 | 4985 | if (tmp == KEY_dump && ckWARN(WARN_MISC)) { |
9014280d | 4986 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
ac206dc8 RGS |
4987 | "dump() better written as CORE::dump()"); |
4988 | } | |
a0714e2c | 4989 | gv = NULL; |
56f7f34b | 4990 | gvp = 0; |
041457d9 DM |
4991 | if (hgv && tmp != KEY_x && tmp != KEY_CORE |
4992 | && ckWARN(WARN_AMBIGUOUS)) /* never ambiguous */ | |
9014280d | 4993 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 4994 | "Ambiguous call resolved as CORE::%s(), %s", |
2f3ca594 | 4995 | GvENAME(hgv), "qualify as such or use &"); |
49dc05e3 | 4996 | } |
a0d0e21e LW |
4997 | } |
4998 | ||
4999 | reserved_word: | |
5000 | switch (tmp) { | |
79072805 LW |
5001 | |
5002 | default: /* not a keyword */ | |
0bfa2a8a NC |
5003 | /* Trade off - by using this evil construction we can pull the |
5004 | variable gv into the block labelled keylookup. If not, then | |
5005 | we have to give it function scope so that the goto from the | |
5006 | earlier ':' case doesn't bypass the initialisation. */ | |
5007 | if (0) { | |
5008 | just_a_word_zero_gv: | |
5009 | gv = NULL; | |
5010 | gvp = NULL; | |
8bee0991 | 5011 | orig_keyword = 0; |
0bfa2a8a | 5012 | } |
93a17b20 | 5013 | just_a_word: { |
96e4d5b1 | 5014 | SV *sv; |
ce29ac45 | 5015 | int pkgname = 0; |
f54cb97a | 5016 | const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
5069cc75 | 5017 | CV *cv; |
5db06880 | 5018 | #ifdef PERL_MAD |
cd81e915 | 5019 | SV *nextPL_nextwhite = 0; |
5db06880 NC |
5020 | #endif |
5021 | ||
8990e307 LW |
5022 | |
5023 | /* Get the rest if it looks like a package qualifier */ | |
5024 | ||
155aba94 | 5025 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 5026 | STRLEN morelen; |
3280af22 | 5027 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
5028 | TRUE, &morelen); |
5029 | if (!morelen) | |
cea2e8a9 | 5030 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 5031 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 5032 | len += morelen; |
ce29ac45 | 5033 | pkgname = 1; |
a0d0e21e | 5034 | } |
8990e307 | 5035 | |
3280af22 NIS |
5036 | if (PL_expect == XOPERATOR) { |
5037 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 5038 | CopLINE_dec(PL_curcop); |
9014280d | 5039 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 5040 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
5041 | } |
5042 | else | |
54310121 | 5043 | no_op("Bareword",s); |
463ee0b2 | 5044 | } |
8990e307 | 5045 | |
c3e0f903 GS |
5046 | /* Look for a subroutine with this name in current package, |
5047 | unless name is "Foo::", in which case Foo is a bearword | |
5048 | (and a package name). */ | |
5049 | ||
5db06880 | 5050 | if (len > 2 && !PL_madskills && |
3280af22 | 5051 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 5052 | { |
f776e3cd | 5053 | if (ckWARN(WARN_BAREWORD) |
90e5519e | 5054 | && ! gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVHV)) |
9014280d | 5055 | Perl_warner(aTHX_ packWARN(WARN_BAREWORD), |
599cee73 | 5056 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 5057 | PL_tokenbuf); |
c3e0f903 | 5058 | len -= 2; |
3280af22 | 5059 | PL_tokenbuf[len] = '\0'; |
a0714e2c | 5060 | gv = NULL; |
c3e0f903 GS |
5061 | gvp = 0; |
5062 | } | |
5063 | else { | |
62d55b22 NC |
5064 | if (!gv) { |
5065 | /* Mustn't actually add anything to a symbol table. | |
5066 | But also don't want to "initialise" any placeholder | |
5067 | constants that might already be there into full | |
5068 | blown PVGVs with attached PVCV. */ | |
90e5519e NC |
5069 | gv = gv_fetchpvn_flags(PL_tokenbuf, len, |
5070 | GV_NOADD_NOINIT, SVt_PVCV); | |
62d55b22 | 5071 | } |
b3d904f3 | 5072 | len = 0; |
c3e0f903 GS |
5073 | } |
5074 | ||
5075 | /* if we saw a global override before, get the right name */ | |
8990e307 | 5076 | |
49dc05e3 | 5077 | if (gvp) { |
396482e1 | 5078 | sv = newSVpvs("CORE::GLOBAL::"); |
3280af22 | 5079 | sv_catpv(sv,PL_tokenbuf); |
49dc05e3 | 5080 | } |
8a7a129d NC |
5081 | else { |
5082 | /* If len is 0, newSVpv does strlen(), which is correct. | |
5083 | If len is non-zero, then it will be the true length, | |
5084 | and so the scalar will be created correctly. */ | |
5085 | sv = newSVpv(PL_tokenbuf,len); | |
5086 | } | |
5db06880 | 5087 | #ifdef PERL_MAD |
cd81e915 NC |
5088 | if (PL_madskills && !PL_thistoken) { |
5089 | char *start = SvPVX(PL_linestr) + PL_realtokenstart; | |
5090 | PL_thistoken = newSVpv(start,s - start); | |
5091 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
5092 | } |
5093 | #endif | |
8990e307 | 5094 | |
a0d0e21e LW |
5095 | /* Presume this is going to be a bareword of some sort. */ |
5096 | ||
5097 | CLINE; | |
49dc05e3 | 5098 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
a0d0e21e | 5099 | yylval.opval->op_private = OPpCONST_BARE; |
8f8cf39c JH |
5100 | /* UTF-8 package name? */ |
5101 | if (UTF && !IN_BYTES && | |
95a20fc0 | 5102 | is_utf8_string((U8*)SvPVX_const(sv), SvCUR(sv))) |
8f8cf39c | 5103 | SvUTF8_on(sv); |
a0d0e21e | 5104 | |
c3e0f903 GS |
5105 | /* And if "Foo::", then that's what it certainly is. */ |
5106 | ||
5107 | if (len) | |
5108 | goto safe_bareword; | |
5109 | ||
5069cc75 NC |
5110 | /* Do the explicit type check so that we don't need to force |
5111 | the initialisation of the symbol table to have a real GV. | |
5112 | Beware - gv may not really be a PVGV, cv may not really be | |
5113 | a PVCV, (because of the space optimisations that gv_init | |
5114 | understands) But they're true if for this symbol there is | |
5115 | respectively a typeglob and a subroutine. | |
5116 | */ | |
5117 | cv = gv ? ((SvTYPE(gv) == SVt_PVGV) | |
5118 | /* Real typeglob, so get the real subroutine: */ | |
5119 | ? GvCVu(gv) | |
5120 | /* A proxy for a subroutine in this package? */ | |
5121 | : SvOK(gv) ? (CV *) gv : NULL) | |
5122 | : NULL; | |
5123 | ||
8990e307 LW |
5124 | /* See if it's the indirect object for a list operator. */ |
5125 | ||
3280af22 NIS |
5126 | if (PL_oldoldbufptr && |
5127 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
5128 | (PL_oldoldbufptr == PL_last_lop |
5129 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 5130 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
5131 | (PL_expect == XREF || |
5132 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 5133 | { |
748a9306 LW |
5134 | bool immediate_paren = *s == '('; |
5135 | ||
a0d0e21e | 5136 | /* (Now we can afford to cross potential line boundary.) */ |
cd81e915 | 5137 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5db06880 | 5138 | #ifdef PERL_MAD |
cd81e915 | 5139 | PL_nextwhite = nextPL_nextwhite; /* assume no & deception */ |
5db06880 | 5140 | #endif |
a0d0e21e LW |
5141 | |
5142 | /* Two barewords in a row may indicate method call. */ | |
5143 | ||
62d55b22 NC |
5144 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && |
5145 | (tmp = intuit_method(s, gv, cv))) | |
bbf60fe6 | 5146 | return REPORT(tmp); |
a0d0e21e LW |
5147 | |
5148 | /* If not a declared subroutine, it's an indirect object. */ | |
5149 | /* (But it's an indir obj regardless for sort.) */ | |
7294df96 | 5150 | /* Also, if "_" follows a filetest operator, it's a bareword */ |
a0d0e21e | 5151 | |
7294df96 RGS |
5152 | if ( |
5153 | ( !immediate_paren && (PL_last_lop_op == OP_SORT || | |
5069cc75 | 5154 | ((!gv || !cv) && |
a9ef352a | 5155 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 5156 | PL_last_lop_op != OP_GREPSTART)))) |
7294df96 RGS |
5157 | || (PL_tokenbuf[0] == '_' && PL_tokenbuf[1] == '\0' |
5158 | && ((PL_opargs[PL_last_lop_op] & OA_CLASS_MASK) == OA_FILESTATOP)) | |
5159 | ) | |
a9ef352a | 5160 | { |
3280af22 | 5161 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 5162 | goto bareword; |
93a17b20 LW |
5163 | } |
5164 | } | |
8990e307 | 5165 | |
3280af22 | 5166 | PL_expect = XOPERATOR; |
5db06880 NC |
5167 | #ifdef PERL_MAD |
5168 | if (isSPACE(*s)) | |
cd81e915 NC |
5169 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5170 | PL_nextwhite = nextPL_nextwhite; | |
5db06880 | 5171 | #else |
8990e307 | 5172 | s = skipspace(s); |
5db06880 | 5173 | #endif |
1c3923b3 GS |
5174 | |
5175 | /* Is this a word before a => operator? */ | |
ce29ac45 | 5176 | if (*s == '=' && s[1] == '>' && !pkgname) { |
1c3923b3 GS |
5177 | CLINE; |
5178 | sv_setpv(((SVOP*)yylval.opval)->op_sv, PL_tokenbuf); | |
0064a8a9 | 5179 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
7948272d | 5180 | SvUTF8_on(((SVOP*)yylval.opval)->op_sv); |
1c3923b3 GS |
5181 | TERM(WORD); |
5182 | } | |
5183 | ||
5184 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 5185 | if (*s == '(') { |
79072805 | 5186 | CLINE; |
5069cc75 | 5187 | if (cv) { |
bf4acbe4 | 5188 | for (d = s + 1; SPACE_OR_TAB(*d); d++) ; |
62d55b22 | 5189 | if (*d == ')' && (sv = gv_const_sv(gv))) { |
96e4d5b1 | 5190 | s = d + 1; |
5db06880 NC |
5191 | #ifdef PERL_MAD |
5192 | if (PL_madskills) { | |
cd81e915 NC |
5193 | char *par = SvPVX(PL_linestr) + PL_realtokenstart; |
5194 | sv_catpvn(PL_thistoken, par, s - par); | |
5195 | if (PL_nextwhite) { | |
5196 | sv_free(PL_nextwhite); | |
5197 | PL_nextwhite = 0; | |
5db06880 NC |
5198 | } |
5199 | } | |
5200 | #endif | |
96e4d5b1 | 5201 | goto its_constant; |
5202 | } | |
5203 | } | |
5db06880 NC |
5204 | #ifdef PERL_MAD |
5205 | if (PL_madskills) { | |
cd81e915 NC |
5206 | PL_nextwhite = PL_thiswhite; |
5207 | PL_thiswhite = 0; | |
5db06880 | 5208 | } |
cd81e915 | 5209 | start_force(PL_curforce); |
5db06880 | 5210 | #endif |
9ded7720 | 5211 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 5212 | PL_expect = XOPERATOR; |
5db06880 NC |
5213 | #ifdef PERL_MAD |
5214 | if (PL_madskills) { | |
cd81e915 NC |
5215 | PL_nextwhite = nextPL_nextwhite; |
5216 | curmad('X', PL_thistoken); | |
5217 | PL_thistoken = newSVpvn("",0); | |
5db06880 NC |
5218 | } |
5219 | #endif | |
93a17b20 | 5220 | force_next(WORD); |
c07a80fd | 5221 | yylval.ival = 0; |
463ee0b2 | 5222 | TOKEN('&'); |
79072805 | 5223 | } |
93a17b20 | 5224 | |
a0d0e21e | 5225 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 5226 | |
62d55b22 | 5227 | if ((*s == '$' || *s == '{') && (!gv || !cv)) { |
3280af22 NIS |
5228 | PL_last_lop = PL_oldbufptr; |
5229 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 5230 | PREBLOCK(METHOD); |
463ee0b2 LW |
5231 | } |
5232 | ||
8990e307 LW |
5233 | /* If followed by a bareword, see if it looks like indir obj. */ |
5234 | ||
30fe34ed RGS |
5235 | if (!orig_keyword |
5236 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
62d55b22 | 5237 | && (tmp = intuit_method(s, gv, cv))) |
bbf60fe6 | 5238 | return REPORT(tmp); |
93a17b20 | 5239 | |
8990e307 LW |
5240 | /* Not a method, so call it a subroutine (if defined) */ |
5241 | ||
5069cc75 | 5242 | if (cv) { |
0453d815 | 5243 | if (lastchar == '-' && ckWARN_d(WARN_AMBIGUOUS)) |
9014280d | 5244 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5245 | "Ambiguous use of -%s resolved as -&%s()", |
3280af22 | 5246 | PL_tokenbuf, PL_tokenbuf); |
89bfa8cd | 5247 | /* Check for a constant sub */ |
62d55b22 | 5248 | if ((sv = gv_const_sv(gv))) { |
96e4d5b1 | 5249 | its_constant: |
5250 | SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv); | |
b37c2d43 | 5251 | ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc_simple(sv); |
96e4d5b1 | 5252 | yylval.opval->op_private = 0; |
5253 | TOKEN(WORD); | |
89bfa8cd | 5254 | } |
5255 | ||
a5f75d66 | 5256 | /* Resolve to GV now. */ |
62d55b22 | 5257 | if (SvTYPE(gv) != SVt_PVGV) { |
b3d904f3 | 5258 | gv = gv_fetchpv(PL_tokenbuf, 0, SVt_PVCV); |
62d55b22 NC |
5259 | assert (SvTYPE(gv) == SVt_PVGV); |
5260 | /* cv must have been some sort of placeholder, so | |
5261 | now needs replacing with a real code reference. */ | |
5262 | cv = GvCV(gv); | |
5263 | } | |
5264 | ||
a5f75d66 AD |
5265 | op_free(yylval.opval); |
5266 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
9675f7ac | 5267 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
7a52d87a | 5268 | PL_last_lop = PL_oldbufptr; |
bf848113 | 5269 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 | 5270 | /* Is there a prototype? */ |
5db06880 NC |
5271 | if ( |
5272 | #ifdef PERL_MAD | |
5273 | cv && | |
5274 | #endif | |
5275 | SvPOK(cv)) { | |
5f66b61c AL |
5276 | STRLEN protolen; |
5277 | const char *proto = SvPV_const((SV*)cv, protolen); | |
5278 | if (!protolen) | |
4633a7c4 | 5279 | TERM(FUNC0SUB); |
770526c1 | 5280 | if (*proto == '$' && proto[1] == '\0') |
4633a7c4 | 5281 | OPERATOR(UNIOPSUB); |
0f5d0394 AE |
5282 | while (*proto == ';') |
5283 | proto++; | |
7a52d87a | 5284 | if (*proto == '&' && *s == '{') { |
bfed75c6 | 5285 | sv_setpv(PL_subname, PL_curstash ? |
c99da370 | 5286 | "__ANON__" : "__ANON__::__ANON__"); |
4633a7c4 LW |
5287 | PREBLOCK(LSTOPSUB); |
5288 | } | |
a9ef352a | 5289 | } |
5db06880 NC |
5290 | #ifdef PERL_MAD |
5291 | { | |
5292 | if (PL_madskills) { | |
cd81e915 NC |
5293 | PL_nextwhite = PL_thiswhite; |
5294 | PL_thiswhite = 0; | |
5db06880 | 5295 | } |
cd81e915 | 5296 | start_force(PL_curforce); |
5db06880 NC |
5297 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
5298 | PL_expect = XTERM; | |
5299 | if (PL_madskills) { | |
cd81e915 NC |
5300 | PL_nextwhite = nextPL_nextwhite; |
5301 | curmad('X', PL_thistoken); | |
5302 | PL_thistoken = newSVpvn("",0); | |
5db06880 NC |
5303 | } |
5304 | force_next(WORD); | |
5305 | TOKEN(NOAMP); | |
5306 | } | |
5307 | } | |
5308 | ||
5309 | /* Guess harder when madskills require "best effort". */ | |
5310 | if (PL_madskills && (!gv || !GvCVu(gv))) { | |
5311 | int probable_sub = 0; | |
5312 | if (strchr("\"'`$@%0123456789!*+{[<", *s)) | |
5313 | probable_sub = 1; | |
5314 | else if (isALPHA(*s)) { | |
5315 | char tmpbuf[1024]; | |
5316 | STRLEN tmplen; | |
5317 | d = s; | |
5318 | d = scan_word(d, tmpbuf, sizeof tmpbuf, TRUE, &tmplen); | |
5319 | if (!keyword(tmpbuf,tmplen)) | |
5320 | probable_sub = 1; | |
5321 | else { | |
5322 | while (d < PL_bufend && isSPACE(*d)) | |
5323 | d++; | |
5324 | if (*d == '=' && d[1] == '>') | |
5325 | probable_sub = 1; | |
5326 | } | |
5327 | } | |
5328 | if (probable_sub) { | |
5329 | gv = gv_fetchpv(PL_tokenbuf, TRUE, SVt_PVCV); | |
5330 | op_free(yylval.opval); | |
5331 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
5332 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; | |
5333 | PL_last_lop = PL_oldbufptr; | |
5334 | PL_last_lop_op = OP_ENTERSUB; | |
cd81e915 NC |
5335 | PL_nextwhite = PL_thiswhite; |
5336 | PL_thiswhite = 0; | |
5337 | start_force(PL_curforce); | |
5db06880 NC |
5338 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
5339 | PL_expect = XTERM; | |
cd81e915 NC |
5340 | PL_nextwhite = nextPL_nextwhite; |
5341 | curmad('X', PL_thistoken); | |
5342 | PL_thistoken = newSVpvn("",0); | |
5db06880 NC |
5343 | force_next(WORD); |
5344 | TOKEN(NOAMP); | |
5345 | } | |
5346 | #else | |
9ded7720 | 5347 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 5348 | PL_expect = XTERM; |
8990e307 LW |
5349 | force_next(WORD); |
5350 | TOKEN(NOAMP); | |
5db06880 | 5351 | #endif |
8990e307 | 5352 | } |
748a9306 | 5353 | |
8990e307 LW |
5354 | /* Call it a bare word */ |
5355 | ||
5603f27d GS |
5356 | if (PL_hints & HINT_STRICT_SUBS) |
5357 | yylval.opval->op_private |= OPpCONST_STRICT; | |
5358 | else { | |
5359 | bareword: | |
041457d9 DM |
5360 | if (lastchar != '-') { |
5361 | if (ckWARN(WARN_RESERVED)) { | |
5603f27d | 5362 | for (d = PL_tokenbuf; *d && isLOWER(*d); d++) ; |
238ae712 | 5363 | if (!*d && !gv_stashpv(PL_tokenbuf,FALSE)) |
9014280d | 5364 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
5365 | PL_tokenbuf); |
5366 | } | |
748a9306 LW |
5367 | } |
5368 | } | |
c3e0f903 GS |
5369 | |
5370 | safe_bareword: | |
3792a11b NC |
5371 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&') |
5372 | && ckWARN_d(WARN_AMBIGUOUS)) { | |
9014280d | 5373 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5374 | "Operator or semicolon missing before %c%s", |
3280af22 | 5375 | lastchar, PL_tokenbuf); |
9014280d | 5376 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5377 | "Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
5378 | lastchar, lastchar); |
5379 | } | |
93a17b20 | 5380 | TOKEN(WORD); |
79072805 | 5381 | } |
79072805 | 5382 | |
68dc0745 | 5383 | case KEY___FILE__: |
46fc3d4c | 5384 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 5385 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 5386 | TERM(THING); |
5387 | ||
79072805 | 5388 | case KEY___LINE__: |
cf2093f6 | 5389 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 5390 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 5391 | TERM(THING); |
68dc0745 | 5392 | |
5393 | case KEY___PACKAGE__: | |
5394 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, | |
3280af22 | 5395 | (PL_curstash |
5aaec2b4 | 5396 | ? newSVhek(HvNAME_HEK(PL_curstash)) |
3280af22 | 5397 | : &PL_sv_undef)); |
79072805 | 5398 | TERM(THING); |
79072805 | 5399 | |
e50aee73 | 5400 | case KEY___DATA__: |
79072805 LW |
5401 | case KEY___END__: { |
5402 | GV *gv; | |
3280af22 | 5403 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
bfed75c6 | 5404 | const char *pname = "main"; |
3280af22 | 5405 | if (PL_tokenbuf[2] == 'D') |
bfcb3514 | 5406 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
f776e3cd NC |
5407 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD, |
5408 | SVt_PVIO); | |
a5f75d66 | 5409 | GvMULTI_on(gv); |
79072805 | 5410 | if (!GvIO(gv)) |
a0d0e21e | 5411 | GvIOp(gv) = newIO(); |
3280af22 | 5412 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
5413 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
5414 | { | |
f54cb97a | 5415 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
5416 | fcntl(fd,F_SETFD,fd >= 3); |
5417 | } | |
79072805 | 5418 | #endif |
fd049845 | 5419 | /* Mark this internal pseudo-handle as clean */ |
5420 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
3280af22 | 5421 | if (PL_preprocess) |
50952442 | 5422 | IoTYPE(GvIOp(gv)) = IoTYPE_PIPE; |
3280af22 | 5423 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 5424 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 5425 | else |
50952442 | 5426 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
5427 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
5428 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 5429 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 5430 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
5431 | if (PL_bufend-PL_bufptr > 2 |
5432 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
5433 | { |
5434 | Off_t loc = 0; | |
50952442 | 5435 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
5436 | loc = PerlIO_tell(PL_rsfp); |
5437 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
5438 | } | |
2986a63f JH |
5439 | #ifdef NETWARE |
5440 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
5441 | #else | |
c39cd008 | 5442 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 5443 | #endif /* NETWARE */ |
1143fce0 JH |
5444 | #ifdef PERLIO_IS_STDIO /* really? */ |
5445 | # if defined(__BORLANDC__) | |
cb359b41 JH |
5446 | /* XXX see note in do_binmode() */ |
5447 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
5448 | # endif |
5449 | #endif | |
c39cd008 GS |
5450 | if (loc > 0) |
5451 | PerlIO_seek(PL_rsfp, loc, 0); | |
5452 | } | |
5453 | } | |
5454 | #endif | |
7948272d | 5455 | #ifdef PERLIO_LAYERS |
52d2e0f4 JH |
5456 | if (!IN_BYTES) { |
5457 | if (UTF) | |
5458 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
5459 | else if (PL_encoding) { | |
5460 | SV *name; | |
5461 | dSP; | |
5462 | ENTER; | |
5463 | SAVETMPS; | |
5464 | PUSHMARK(sp); | |
5465 | EXTEND(SP, 1); | |
5466 | XPUSHs(PL_encoding); | |
5467 | PUTBACK; | |
5468 | call_method("name", G_SCALAR); | |
5469 | SPAGAIN; | |
5470 | name = POPs; | |
5471 | PUTBACK; | |
bfed75c6 | 5472 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
52d2e0f4 JH |
5473 | Perl_form(aTHX_ ":encoding(%"SVf")", |
5474 | name)); | |
5475 | FREETMPS; | |
5476 | LEAVE; | |
5477 | } | |
5478 | } | |
7948272d | 5479 | #endif |
5db06880 NC |
5480 | #ifdef PERL_MAD |
5481 | if (PL_madskills) { | |
cd81e915 NC |
5482 | if (PL_realtokenstart >= 0) { |
5483 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; | |
5484 | if (!PL_endwhite) | |
5485 | PL_endwhite = newSVpvn("",0); | |
5486 | sv_catsv(PL_endwhite, PL_thiswhite); | |
5487 | PL_thiswhite = 0; | |
5488 | sv_catpvn(PL_endwhite, tstart, PL_bufend - tstart); | |
5489 | PL_realtokenstart = -1; | |
5db06880 | 5490 | } |
cd81e915 NC |
5491 | while ((s = filter_gets(PL_endwhite, PL_rsfp, |
5492 | SvCUR(PL_endwhite))) != Nullch) ; | |
5db06880 NC |
5493 | } |
5494 | #endif | |
4608196e | 5495 | PL_rsfp = NULL; |
79072805 LW |
5496 | } |
5497 | goto fake_eof; | |
e929a76b | 5498 | } |
de3bb511 | 5499 | |
8990e307 | 5500 | case KEY_AUTOLOAD: |
ed6116ce | 5501 | case KEY_DESTROY: |
79072805 | 5502 | case KEY_BEGIN: |
7d30b5c4 | 5503 | case KEY_CHECK: |
7d07dbc2 | 5504 | case KEY_INIT: |
7d30b5c4 | 5505 | case KEY_END: |
3280af22 NIS |
5506 | if (PL_expect == XSTATE) { |
5507 | s = PL_bufptr; | |
93a17b20 | 5508 | goto really_sub; |
79072805 LW |
5509 | } |
5510 | goto just_a_word; | |
5511 | ||
a0d0e21e LW |
5512 | case KEY_CORE: |
5513 | if (*s == ':' && s[1] == ':') { | |
5514 | s += 2; | |
748a9306 | 5515 | d = s; |
3280af22 | 5516 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
6798c92b GS |
5517 | if (!(tmp = keyword(PL_tokenbuf, len))) |
5518 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); | |
a0d0e21e LW |
5519 | if (tmp < 0) |
5520 | tmp = -tmp; | |
850e8516 | 5521 | else if (tmp == KEY_require || tmp == KEY_do) |
a72a1c8b | 5522 | /* that's a way to remember we saw "CORE::" */ |
850e8516 | 5523 | orig_keyword = tmp; |
a0d0e21e LW |
5524 | goto reserved_word; |
5525 | } | |
5526 | goto just_a_word; | |
5527 | ||
463ee0b2 LW |
5528 | case KEY_abs: |
5529 | UNI(OP_ABS); | |
5530 | ||
79072805 LW |
5531 | case KEY_alarm: |
5532 | UNI(OP_ALARM); | |
5533 | ||
5534 | case KEY_accept: | |
a0d0e21e | 5535 | LOP(OP_ACCEPT,XTERM); |
79072805 | 5536 | |
463ee0b2 LW |
5537 | case KEY_and: |
5538 | OPERATOR(ANDOP); | |
5539 | ||
79072805 | 5540 | case KEY_atan2: |
a0d0e21e | 5541 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 5542 | |
79072805 | 5543 | case KEY_bind: |
a0d0e21e | 5544 | LOP(OP_BIND,XTERM); |
79072805 LW |
5545 | |
5546 | case KEY_binmode: | |
1c1fc3ea | 5547 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
5548 | |
5549 | case KEY_bless: | |
a0d0e21e | 5550 | LOP(OP_BLESS,XTERM); |
79072805 | 5551 | |
0d863452 RH |
5552 | case KEY_break: |
5553 | FUN0(OP_BREAK); | |
5554 | ||
79072805 LW |
5555 | case KEY_chop: |
5556 | UNI(OP_CHOP); | |
5557 | ||
5558 | case KEY_continue: | |
0d863452 RH |
5559 | /* When 'use switch' is in effect, continue has a dual |
5560 | life as a control operator. */ | |
5561 | { | |
ef89dcc3 | 5562 | if (!FEATURE_IS_ENABLED("switch")) |
0d863452 RH |
5563 | PREBLOCK(CONTINUE); |
5564 | else { | |
5565 | /* We have to disambiguate the two senses of | |
5566 | "continue". If the next token is a '{' then | |
5567 | treat it as the start of a continue block; | |
5568 | otherwise treat it as a control operator. | |
5569 | */ | |
5570 | s = skipspace(s); | |
5571 | if (*s == '{') | |
79072805 | 5572 | PREBLOCK(CONTINUE); |
0d863452 RH |
5573 | else |
5574 | FUN0(OP_CONTINUE); | |
5575 | } | |
5576 | } | |
79072805 LW |
5577 | |
5578 | case KEY_chdir: | |
fafc274c NC |
5579 | /* may use HOME */ |
5580 | (void)gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV); | |
79072805 LW |
5581 | UNI(OP_CHDIR); |
5582 | ||
5583 | case KEY_close: | |
5584 | UNI(OP_CLOSE); | |
5585 | ||
5586 | case KEY_closedir: | |
5587 | UNI(OP_CLOSEDIR); | |
5588 | ||
5589 | case KEY_cmp: | |
5590 | Eop(OP_SCMP); | |
5591 | ||
5592 | case KEY_caller: | |
5593 | UNI(OP_CALLER); | |
5594 | ||
5595 | case KEY_crypt: | |
5596 | #ifdef FCRYPT | |
f4c556ac GS |
5597 | if (!PL_cryptseen) { |
5598 | PL_cryptseen = TRUE; | |
de3bb511 | 5599 | init_des(); |
f4c556ac | 5600 | } |
a687059c | 5601 | #endif |
a0d0e21e | 5602 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
5603 | |
5604 | case KEY_chmod: | |
a0d0e21e | 5605 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
5606 | |
5607 | case KEY_chown: | |
a0d0e21e | 5608 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
5609 | |
5610 | case KEY_connect: | |
a0d0e21e | 5611 | LOP(OP_CONNECT,XTERM); |
79072805 | 5612 | |
463ee0b2 LW |
5613 | case KEY_chr: |
5614 | UNI(OP_CHR); | |
5615 | ||
79072805 LW |
5616 | case KEY_cos: |
5617 | UNI(OP_COS); | |
5618 | ||
5619 | case KEY_chroot: | |
5620 | UNI(OP_CHROOT); | |
5621 | ||
0d863452 RH |
5622 | case KEY_default: |
5623 | PREBLOCK(DEFAULT); | |
5624 | ||
79072805 | 5625 | case KEY_do: |
29595ff2 | 5626 | s = SKIPSPACE1(s); |
79072805 | 5627 | if (*s == '{') |
a0d0e21e | 5628 | PRETERMBLOCK(DO); |
79072805 | 5629 | if (*s != '\'') |
89c5585f | 5630 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
850e8516 RGS |
5631 | if (orig_keyword == KEY_do) { |
5632 | orig_keyword = 0; | |
5633 | yylval.ival = 1; | |
5634 | } | |
5635 | else | |
5636 | yylval.ival = 0; | |
378cc40b | 5637 | OPERATOR(DO); |
79072805 LW |
5638 | |
5639 | case KEY_die: | |
3280af22 | 5640 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 5641 | LOP(OP_DIE,XTERM); |
79072805 LW |
5642 | |
5643 | case KEY_defined: | |
5644 | UNI(OP_DEFINED); | |
5645 | ||
5646 | case KEY_delete: | |
a0d0e21e | 5647 | UNI(OP_DELETE); |
79072805 LW |
5648 | |
5649 | case KEY_dbmopen: | |
5c1737d1 | 5650 | gv_fetchpvs("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
a0d0e21e | 5651 | LOP(OP_DBMOPEN,XTERM); |
79072805 LW |
5652 | |
5653 | case KEY_dbmclose: | |
5654 | UNI(OP_DBMCLOSE); | |
5655 | ||
5656 | case KEY_dump: | |
a0d0e21e | 5657 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5658 | LOOPX(OP_DUMP); |
5659 | ||
5660 | case KEY_else: | |
5661 | PREBLOCK(ELSE); | |
5662 | ||
5663 | case KEY_elsif: | |
57843af0 | 5664 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5665 | OPERATOR(ELSIF); |
5666 | ||
5667 | case KEY_eq: | |
5668 | Eop(OP_SEQ); | |
5669 | ||
a0d0e21e LW |
5670 | case KEY_exists: |
5671 | UNI(OP_EXISTS); | |
4e553d73 | 5672 | |
79072805 | 5673 | case KEY_exit: |
5db06880 NC |
5674 | if (PL_madskills) |
5675 | UNI(OP_INT); | |
79072805 LW |
5676 | UNI(OP_EXIT); |
5677 | ||
5678 | case KEY_eval: | |
29595ff2 | 5679 | s = SKIPSPACE1(s); |
3280af22 | 5680 | PL_expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 5681 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
5682 | |
5683 | case KEY_eof: | |
5684 | UNI(OP_EOF); | |
5685 | ||
c963b151 BD |
5686 | case KEY_err: |
5687 | OPERATOR(DOROP); | |
5688 | ||
79072805 LW |
5689 | case KEY_exp: |
5690 | UNI(OP_EXP); | |
5691 | ||
5692 | case KEY_each: | |
5693 | UNI(OP_EACH); | |
5694 | ||
5695 | case KEY_exec: | |
5696 | set_csh(); | |
a0d0e21e | 5697 | LOP(OP_EXEC,XREF); |
79072805 LW |
5698 | |
5699 | case KEY_endhostent: | |
5700 | FUN0(OP_EHOSTENT); | |
5701 | ||
5702 | case KEY_endnetent: | |
5703 | FUN0(OP_ENETENT); | |
5704 | ||
5705 | case KEY_endservent: | |
5706 | FUN0(OP_ESERVENT); | |
5707 | ||
5708 | case KEY_endprotoent: | |
5709 | FUN0(OP_EPROTOENT); | |
5710 | ||
5711 | case KEY_endpwent: | |
5712 | FUN0(OP_EPWENT); | |
5713 | ||
5714 | case KEY_endgrent: | |
5715 | FUN0(OP_EGRENT); | |
5716 | ||
5717 | case KEY_for: | |
5718 | case KEY_foreach: | |
57843af0 | 5719 | yylval.ival = CopLINE(PL_curcop); |
29595ff2 | 5720 | s = SKIPSPACE1(s); |
7e2040f0 | 5721 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 5722 | char *p = s; |
5db06880 NC |
5723 | #ifdef PERL_MAD |
5724 | int soff = s - SvPVX(PL_linestr); /* for skipspace realloc */ | |
5725 | #endif | |
5726 | ||
3280af22 | 5727 | if ((PL_bufend - p) >= 3 && |
55497cff | 5728 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
5729 | p += 2; | |
77ca0c92 LW |
5730 | else if ((PL_bufend - p) >= 4 && |
5731 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
5732 | p += 3; | |
29595ff2 | 5733 | p = PEEKSPACE(p); |
7e2040f0 | 5734 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
5735 | p = scan_ident(p, PL_bufend, |
5736 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
29595ff2 | 5737 | p = PEEKSPACE(p); |
77ca0c92 LW |
5738 | } |
5739 | if (*p != '$') | |
cea2e8a9 | 5740 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
5db06880 NC |
5741 | #ifdef PERL_MAD |
5742 | s = SvPVX(PL_linestr) + soff; | |
5743 | #endif | |
55497cff | 5744 | } |
79072805 LW |
5745 | OPERATOR(FOR); |
5746 | ||
5747 | case KEY_formline: | |
a0d0e21e | 5748 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
5749 | |
5750 | case KEY_fork: | |
5751 | FUN0(OP_FORK); | |
5752 | ||
5753 | case KEY_fcntl: | |
a0d0e21e | 5754 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
5755 | |
5756 | case KEY_fileno: | |
5757 | UNI(OP_FILENO); | |
5758 | ||
5759 | case KEY_flock: | |
a0d0e21e | 5760 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
5761 | |
5762 | case KEY_gt: | |
5763 | Rop(OP_SGT); | |
5764 | ||
5765 | case KEY_ge: | |
5766 | Rop(OP_SGE); | |
5767 | ||
5768 | case KEY_grep: | |
2c38e13d | 5769 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
5770 | |
5771 | case KEY_goto: | |
a0d0e21e | 5772 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5773 | LOOPX(OP_GOTO); |
5774 | ||
5775 | case KEY_gmtime: | |
5776 | UNI(OP_GMTIME); | |
5777 | ||
5778 | case KEY_getc: | |
6f33ba73 | 5779 | UNIDOR(OP_GETC); |
79072805 LW |
5780 | |
5781 | case KEY_getppid: | |
5782 | FUN0(OP_GETPPID); | |
5783 | ||
5784 | case KEY_getpgrp: | |
5785 | UNI(OP_GETPGRP); | |
5786 | ||
5787 | case KEY_getpriority: | |
a0d0e21e | 5788 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
5789 | |
5790 | case KEY_getprotobyname: | |
5791 | UNI(OP_GPBYNAME); | |
5792 | ||
5793 | case KEY_getprotobynumber: | |
a0d0e21e | 5794 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
5795 | |
5796 | case KEY_getprotoent: | |
5797 | FUN0(OP_GPROTOENT); | |
5798 | ||
5799 | case KEY_getpwent: | |
5800 | FUN0(OP_GPWENT); | |
5801 | ||
5802 | case KEY_getpwnam: | |
ff68c719 | 5803 | UNI(OP_GPWNAM); |
79072805 LW |
5804 | |
5805 | case KEY_getpwuid: | |
ff68c719 | 5806 | UNI(OP_GPWUID); |
79072805 LW |
5807 | |
5808 | case KEY_getpeername: | |
5809 | UNI(OP_GETPEERNAME); | |
5810 | ||
5811 | case KEY_gethostbyname: | |
5812 | UNI(OP_GHBYNAME); | |
5813 | ||
5814 | case KEY_gethostbyaddr: | |
a0d0e21e | 5815 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
5816 | |
5817 | case KEY_gethostent: | |
5818 | FUN0(OP_GHOSTENT); | |
5819 | ||
5820 | case KEY_getnetbyname: | |
5821 | UNI(OP_GNBYNAME); | |
5822 | ||
5823 | case KEY_getnetbyaddr: | |
a0d0e21e | 5824 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
5825 | |
5826 | case KEY_getnetent: | |
5827 | FUN0(OP_GNETENT); | |
5828 | ||
5829 | case KEY_getservbyname: | |
a0d0e21e | 5830 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
5831 | |
5832 | case KEY_getservbyport: | |
a0d0e21e | 5833 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
5834 | |
5835 | case KEY_getservent: | |
5836 | FUN0(OP_GSERVENT); | |
5837 | ||
5838 | case KEY_getsockname: | |
5839 | UNI(OP_GETSOCKNAME); | |
5840 | ||
5841 | case KEY_getsockopt: | |
a0d0e21e | 5842 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
5843 | |
5844 | case KEY_getgrent: | |
5845 | FUN0(OP_GGRENT); | |
5846 | ||
5847 | case KEY_getgrnam: | |
ff68c719 | 5848 | UNI(OP_GGRNAM); |
79072805 LW |
5849 | |
5850 | case KEY_getgrgid: | |
ff68c719 | 5851 | UNI(OP_GGRGID); |
79072805 LW |
5852 | |
5853 | case KEY_getlogin: | |
5854 | FUN0(OP_GETLOGIN); | |
5855 | ||
0d863452 RH |
5856 | case KEY_given: |
5857 | yylval.ival = CopLINE(PL_curcop); | |
5858 | OPERATOR(GIVEN); | |
5859 | ||
93a17b20 | 5860 | case KEY_glob: |
a0d0e21e LW |
5861 | set_csh(); |
5862 | LOP(OP_GLOB,XTERM); | |
93a17b20 | 5863 | |
79072805 LW |
5864 | case KEY_hex: |
5865 | UNI(OP_HEX); | |
5866 | ||
5867 | case KEY_if: | |
57843af0 | 5868 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5869 | OPERATOR(IF); |
5870 | ||
5871 | case KEY_index: | |
a0d0e21e | 5872 | LOP(OP_INDEX,XTERM); |
79072805 LW |
5873 | |
5874 | case KEY_int: | |
5875 | UNI(OP_INT); | |
5876 | ||
5877 | case KEY_ioctl: | |
a0d0e21e | 5878 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
5879 | |
5880 | case KEY_join: | |
a0d0e21e | 5881 | LOP(OP_JOIN,XTERM); |
79072805 LW |
5882 | |
5883 | case KEY_keys: | |
5884 | UNI(OP_KEYS); | |
5885 | ||
5886 | case KEY_kill: | |
a0d0e21e | 5887 | LOP(OP_KILL,XTERM); |
79072805 LW |
5888 | |
5889 | case KEY_last: | |
a0d0e21e | 5890 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 5891 | LOOPX(OP_LAST); |
4e553d73 | 5892 | |
79072805 LW |
5893 | case KEY_lc: |
5894 | UNI(OP_LC); | |
5895 | ||
5896 | case KEY_lcfirst: | |
5897 | UNI(OP_LCFIRST); | |
5898 | ||
5899 | case KEY_local: | |
09bef843 | 5900 | yylval.ival = 0; |
79072805 LW |
5901 | OPERATOR(LOCAL); |
5902 | ||
5903 | case KEY_length: | |
5904 | UNI(OP_LENGTH); | |
5905 | ||
5906 | case KEY_lt: | |
5907 | Rop(OP_SLT); | |
5908 | ||
5909 | case KEY_le: | |
5910 | Rop(OP_SLE); | |
5911 | ||
5912 | case KEY_localtime: | |
5913 | UNI(OP_LOCALTIME); | |
5914 | ||
5915 | case KEY_log: | |
5916 | UNI(OP_LOG); | |
5917 | ||
5918 | case KEY_link: | |
a0d0e21e | 5919 | LOP(OP_LINK,XTERM); |
79072805 LW |
5920 | |
5921 | case KEY_listen: | |
a0d0e21e | 5922 | LOP(OP_LISTEN,XTERM); |
79072805 | 5923 | |
c0329465 MB |
5924 | case KEY_lock: |
5925 | UNI(OP_LOCK); | |
5926 | ||
79072805 LW |
5927 | case KEY_lstat: |
5928 | UNI(OP_LSTAT); | |
5929 | ||
5930 | case KEY_m: | |
8782bef2 | 5931 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
5932 | TERM(sublex_start()); |
5933 | ||
a0d0e21e | 5934 | case KEY_map: |
2c38e13d | 5935 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 5936 | |
79072805 | 5937 | case KEY_mkdir: |
a0d0e21e | 5938 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
5939 | |
5940 | case KEY_msgctl: | |
a0d0e21e | 5941 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
5942 | |
5943 | case KEY_msgget: | |
a0d0e21e | 5944 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
5945 | |
5946 | case KEY_msgrcv: | |
a0d0e21e | 5947 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
5948 | |
5949 | case KEY_msgsnd: | |
a0d0e21e | 5950 | LOP(OP_MSGSND,XTERM); |
79072805 | 5951 | |
77ca0c92 | 5952 | case KEY_our: |
93a17b20 | 5953 | case KEY_my: |
77ca0c92 | 5954 | PL_in_my = tmp; |
29595ff2 | 5955 | s = SKIPSPACE1(s); |
7e2040f0 | 5956 | if (isIDFIRST_lazy_if(s,UTF)) { |
5db06880 NC |
5957 | #ifdef PERL_MAD |
5958 | char* start = s; | |
5959 | #endif | |
3280af22 | 5960 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
5961 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
5962 | goto really_sub; | |
def3634b | 5963 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 5964 | if (!PL_in_my_stash) { |
c750a3ec | 5965 | char tmpbuf[1024]; |
3280af22 NIS |
5966 | PL_bufptr = s; |
5967 | sprintf(tmpbuf, "No such class %.1000s", PL_tokenbuf); | |
c750a3ec MB |
5968 | yyerror(tmpbuf); |
5969 | } | |
5db06880 NC |
5970 | #ifdef PERL_MAD |
5971 | if (PL_madskills) { /* just add type to declarator token */ | |
cd81e915 NC |
5972 | sv_catsv(PL_thistoken, PL_nextwhite); |
5973 | PL_nextwhite = 0; | |
5974 | sv_catpvn(PL_thistoken, start, s - start); | |
5db06880 NC |
5975 | } |
5976 | #endif | |
c750a3ec | 5977 | } |
09bef843 | 5978 | yylval.ival = 1; |
55497cff | 5979 | OPERATOR(MY); |
93a17b20 | 5980 | |
79072805 | 5981 | case KEY_next: |
a0d0e21e | 5982 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5983 | LOOPX(OP_NEXT); |
5984 | ||
5985 | case KEY_ne: | |
5986 | Eop(OP_SNE); | |
5987 | ||
a0d0e21e | 5988 | case KEY_no: |
468aa647 | 5989 | s = tokenize_use(0, s); |
a0d0e21e LW |
5990 | OPERATOR(USE); |
5991 | ||
5992 | case KEY_not: | |
29595ff2 | 5993 | if (*s == '(' || (s = SKIPSPACE1(s), *s == '(')) |
2d2e263d LW |
5994 | FUN1(OP_NOT); |
5995 | else | |
5996 | OPERATOR(NOTOP); | |
a0d0e21e | 5997 | |
79072805 | 5998 | case KEY_open: |
29595ff2 | 5999 | s = SKIPSPACE1(s); |
7e2040f0 | 6000 | if (isIDFIRST_lazy_if(s,UTF)) { |
f54cb97a | 6001 | const char *t; |
7e2040f0 | 6002 | for (d = s; isALNUM_lazy_if(d,UTF); d++) ; |
e2ab214b DM |
6003 | for (t=d; *t && isSPACE(*t); t++) ; |
6004 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) | |
66fbe8fb HS |
6005 | /* [perl #16184] */ |
6006 | && !(t[0] == '=' && t[1] == '>') | |
6007 | ) { | |
5f66b61c | 6008 | int parms_len = (int)(d-s); |
9014280d | 6009 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 6010 | "Precedence problem: open %.*s should be open(%.*s)", |
5f66b61c | 6011 | parms_len, s, parms_len, s); |
66fbe8fb | 6012 | } |
93a17b20 | 6013 | } |
a0d0e21e | 6014 | LOP(OP_OPEN,XTERM); |
79072805 | 6015 | |
463ee0b2 | 6016 | case KEY_or: |
a0d0e21e | 6017 | yylval.ival = OP_OR; |
463ee0b2 LW |
6018 | OPERATOR(OROP); |
6019 | ||
79072805 LW |
6020 | case KEY_ord: |
6021 | UNI(OP_ORD); | |
6022 | ||
6023 | case KEY_oct: | |
6024 | UNI(OP_OCT); | |
6025 | ||
6026 | case KEY_opendir: | |
a0d0e21e | 6027 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
6028 | |
6029 | case KEY_print: | |
3280af22 | 6030 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6031 | LOP(OP_PRINT,XREF); |
79072805 LW |
6032 | |
6033 | case KEY_printf: | |
3280af22 | 6034 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6035 | LOP(OP_PRTF,XREF); |
79072805 | 6036 | |
c07a80fd | 6037 | case KEY_prototype: |
6038 | UNI(OP_PROTOTYPE); | |
6039 | ||
79072805 | 6040 | case KEY_push: |
a0d0e21e | 6041 | LOP(OP_PUSH,XTERM); |
79072805 LW |
6042 | |
6043 | case KEY_pop: | |
6f33ba73 | 6044 | UNIDOR(OP_POP); |
79072805 | 6045 | |
a0d0e21e | 6046 | case KEY_pos: |
6f33ba73 | 6047 | UNIDOR(OP_POS); |
4e553d73 | 6048 | |
79072805 | 6049 | case KEY_pack: |
a0d0e21e | 6050 | LOP(OP_PACK,XTERM); |
79072805 LW |
6051 | |
6052 | case KEY_package: | |
a0d0e21e | 6053 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
6054 | OPERATOR(PACKAGE); |
6055 | ||
6056 | case KEY_pipe: | |
a0d0e21e | 6057 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
6058 | |
6059 | case KEY_q: | |
5db06880 | 6060 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6061 | if (!s) |
d4c19fe8 | 6062 | missingterm(NULL); |
79072805 LW |
6063 | yylval.ival = OP_CONST; |
6064 | TERM(sublex_start()); | |
6065 | ||
a0d0e21e LW |
6066 | case KEY_quotemeta: |
6067 | UNI(OP_QUOTEMETA); | |
6068 | ||
8990e307 | 6069 | case KEY_qw: |
5db06880 | 6070 | s = scan_str(s,!!PL_madskills,FALSE); |
8990e307 | 6071 | if (!s) |
d4c19fe8 | 6072 | missingterm(NULL); |
3480a8d2 | 6073 | PL_expect = XOPERATOR; |
8127e0e3 GS |
6074 | force_next(')'); |
6075 | if (SvCUR(PL_lex_stuff)) { | |
5f66b61c | 6076 | OP *words = NULL; |
8127e0e3 | 6077 | int warned = 0; |
3280af22 | 6078 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 6079 | while (len) { |
d4c19fe8 AL |
6080 | for (; isSPACE(*d) && len; --len, ++d) |
6081 | /**/; | |
8127e0e3 | 6082 | if (len) { |
d4c19fe8 | 6083 | SV *sv; |
f54cb97a | 6084 | const char *b = d; |
e476b1b5 | 6085 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
6086 | for (; !isSPACE(*d) && len; --len, ++d) { |
6087 | if (*d == ',') { | |
9014280d | 6088 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6089 | "Possible attempt to separate words with commas"); |
6090 | ++warned; | |
6091 | } | |
6092 | else if (*d == '#') { | |
9014280d | 6093 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6094 | "Possible attempt to put comments in qw() list"); |
6095 | ++warned; | |
6096 | } | |
6097 | } | |
6098 | } | |
6099 | else { | |
d4c19fe8 AL |
6100 | for (; !isSPACE(*d) && len; --len, ++d) |
6101 | /**/; | |
8127e0e3 | 6102 | } |
7948272d NIS |
6103 | sv = newSVpvn(b, d-b); |
6104 | if (DO_UTF8(PL_lex_stuff)) | |
6105 | SvUTF8_on(sv); | |
8127e0e3 | 6106 | words = append_elem(OP_LIST, words, |
7948272d | 6107 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 6108 | } |
6109 | } | |
8127e0e3 | 6110 | if (words) { |
cd81e915 | 6111 | start_force(PL_curforce); |
9ded7720 | 6112 | NEXTVAL_NEXTTOKE.opval = words; |
8127e0e3 GS |
6113 | force_next(THING); |
6114 | } | |
55497cff | 6115 | } |
37fd879b | 6116 | if (PL_lex_stuff) { |
8127e0e3 | 6117 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 6118 | PL_lex_stuff = NULL; |
37fd879b | 6119 | } |
3280af22 | 6120 | PL_expect = XTERM; |
8127e0e3 | 6121 | TOKEN('('); |
8990e307 | 6122 | |
79072805 | 6123 | case KEY_qq: |
5db06880 | 6124 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6125 | if (!s) |
d4c19fe8 | 6126 | missingterm(NULL); |
a0d0e21e | 6127 | yylval.ival = OP_STRINGIFY; |
3280af22 | 6128 | if (SvIVX(PL_lex_stuff) == '\'') |
45977657 | 6129 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
6130 | TERM(sublex_start()); |
6131 | ||
8782bef2 GB |
6132 | case KEY_qr: |
6133 | s = scan_pat(s,OP_QR); | |
6134 | TERM(sublex_start()); | |
6135 | ||
79072805 | 6136 | case KEY_qx: |
5db06880 | 6137 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6138 | if (!s) |
d4c19fe8 | 6139 | missingterm(NULL); |
79072805 LW |
6140 | yylval.ival = OP_BACKTICK; |
6141 | set_csh(); | |
6142 | TERM(sublex_start()); | |
6143 | ||
6144 | case KEY_return: | |
6145 | OLDLOP(OP_RETURN); | |
6146 | ||
6147 | case KEY_require: | |
29595ff2 | 6148 | s = SKIPSPACE1(s); |
e759cc13 RGS |
6149 | if (isDIGIT(*s)) { |
6150 | s = force_version(s, FALSE); | |
a7cb1f99 | 6151 | } |
e759cc13 RGS |
6152 | else if (*s != 'v' || !isDIGIT(s[1]) |
6153 | || (s = force_version(s, TRUE), *s == 'v')) | |
6154 | { | |
a7cb1f99 GS |
6155 | *PL_tokenbuf = '\0'; |
6156 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 6157 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
a7cb1f99 GS |
6158 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), TRUE); |
6159 | else if (*s == '<') | |
6160 | yyerror("<> should be quotes"); | |
6161 | } | |
a72a1c8b RGS |
6162 | if (orig_keyword == KEY_require) { |
6163 | orig_keyword = 0; | |
6164 | yylval.ival = 1; | |
6165 | } | |
6166 | else | |
6167 | yylval.ival = 0; | |
6168 | PL_expect = XTERM; | |
6169 | PL_bufptr = s; | |
6170 | PL_last_uni = PL_oldbufptr; | |
6171 | PL_last_lop_op = OP_REQUIRE; | |
6172 | s = skipspace(s); | |
6173 | return REPORT( (int)REQUIRE ); | |
79072805 LW |
6174 | |
6175 | case KEY_reset: | |
6176 | UNI(OP_RESET); | |
6177 | ||
6178 | case KEY_redo: | |
a0d0e21e | 6179 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6180 | LOOPX(OP_REDO); |
6181 | ||
6182 | case KEY_rename: | |
a0d0e21e | 6183 | LOP(OP_RENAME,XTERM); |
79072805 LW |
6184 | |
6185 | case KEY_rand: | |
6186 | UNI(OP_RAND); | |
6187 | ||
6188 | case KEY_rmdir: | |
6189 | UNI(OP_RMDIR); | |
6190 | ||
6191 | case KEY_rindex: | |
a0d0e21e | 6192 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
6193 | |
6194 | case KEY_read: | |
a0d0e21e | 6195 | LOP(OP_READ,XTERM); |
79072805 LW |
6196 | |
6197 | case KEY_readdir: | |
6198 | UNI(OP_READDIR); | |
6199 | ||
93a17b20 LW |
6200 | case KEY_readline: |
6201 | set_csh(); | |
6f33ba73 | 6202 | UNIDOR(OP_READLINE); |
93a17b20 LW |
6203 | |
6204 | case KEY_readpipe: | |
6205 | set_csh(); | |
6206 | UNI(OP_BACKTICK); | |
6207 | ||
79072805 LW |
6208 | case KEY_rewinddir: |
6209 | UNI(OP_REWINDDIR); | |
6210 | ||
6211 | case KEY_recv: | |
a0d0e21e | 6212 | LOP(OP_RECV,XTERM); |
79072805 LW |
6213 | |
6214 | case KEY_reverse: | |
a0d0e21e | 6215 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
6216 | |
6217 | case KEY_readlink: | |
6f33ba73 | 6218 | UNIDOR(OP_READLINK); |
79072805 LW |
6219 | |
6220 | case KEY_ref: | |
6221 | UNI(OP_REF); | |
6222 | ||
6223 | case KEY_s: | |
6224 | s = scan_subst(s); | |
6225 | if (yylval.opval) | |
6226 | TERM(sublex_start()); | |
6227 | else | |
6228 | TOKEN(1); /* force error */ | |
6229 | ||
0d863452 RH |
6230 | case KEY_say: |
6231 | checkcomma(s,PL_tokenbuf,"filehandle"); | |
6232 | LOP(OP_SAY,XREF); | |
6233 | ||
a0d0e21e LW |
6234 | case KEY_chomp: |
6235 | UNI(OP_CHOMP); | |
4e553d73 | 6236 | |
79072805 LW |
6237 | case KEY_scalar: |
6238 | UNI(OP_SCALAR); | |
6239 | ||
6240 | case KEY_select: | |
a0d0e21e | 6241 | LOP(OP_SELECT,XTERM); |
79072805 LW |
6242 | |
6243 | case KEY_seek: | |
a0d0e21e | 6244 | LOP(OP_SEEK,XTERM); |
79072805 LW |
6245 | |
6246 | case KEY_semctl: | |
a0d0e21e | 6247 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
6248 | |
6249 | case KEY_semget: | |
a0d0e21e | 6250 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
6251 | |
6252 | case KEY_semop: | |
a0d0e21e | 6253 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
6254 | |
6255 | case KEY_send: | |
a0d0e21e | 6256 | LOP(OP_SEND,XTERM); |
79072805 LW |
6257 | |
6258 | case KEY_setpgrp: | |
a0d0e21e | 6259 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
6260 | |
6261 | case KEY_setpriority: | |
a0d0e21e | 6262 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
6263 | |
6264 | case KEY_sethostent: | |
ff68c719 | 6265 | UNI(OP_SHOSTENT); |
79072805 LW |
6266 | |
6267 | case KEY_setnetent: | |
ff68c719 | 6268 | UNI(OP_SNETENT); |
79072805 LW |
6269 | |
6270 | case KEY_setservent: | |
ff68c719 | 6271 | UNI(OP_SSERVENT); |
79072805 LW |
6272 | |
6273 | case KEY_setprotoent: | |
ff68c719 | 6274 | UNI(OP_SPROTOENT); |
79072805 LW |
6275 | |
6276 | case KEY_setpwent: | |
6277 | FUN0(OP_SPWENT); | |
6278 | ||
6279 | case KEY_setgrent: | |
6280 | FUN0(OP_SGRENT); | |
6281 | ||
6282 | case KEY_seekdir: | |
a0d0e21e | 6283 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
6284 | |
6285 | case KEY_setsockopt: | |
a0d0e21e | 6286 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
6287 | |
6288 | case KEY_shift: | |
6f33ba73 | 6289 | UNIDOR(OP_SHIFT); |
79072805 LW |
6290 | |
6291 | case KEY_shmctl: | |
a0d0e21e | 6292 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
6293 | |
6294 | case KEY_shmget: | |
a0d0e21e | 6295 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
6296 | |
6297 | case KEY_shmread: | |
a0d0e21e | 6298 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
6299 | |
6300 | case KEY_shmwrite: | |
a0d0e21e | 6301 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
6302 | |
6303 | case KEY_shutdown: | |
a0d0e21e | 6304 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
6305 | |
6306 | case KEY_sin: | |
6307 | UNI(OP_SIN); | |
6308 | ||
6309 | case KEY_sleep: | |
6310 | UNI(OP_SLEEP); | |
6311 | ||
6312 | case KEY_socket: | |
a0d0e21e | 6313 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
6314 | |
6315 | case KEY_socketpair: | |
a0d0e21e | 6316 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
6317 | |
6318 | case KEY_sort: | |
3280af22 | 6319 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
29595ff2 | 6320 | s = SKIPSPACE1(s); |
79072805 | 6321 | if (*s == ';' || *s == ')') /* probably a close */ |
cea2e8a9 | 6322 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 6323 | PL_expect = XTERM; |
15f0808c | 6324 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 6325 | LOP(OP_SORT,XREF); |
79072805 LW |
6326 | |
6327 | case KEY_split: | |
a0d0e21e | 6328 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
6329 | |
6330 | case KEY_sprintf: | |
a0d0e21e | 6331 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
6332 | |
6333 | case KEY_splice: | |
a0d0e21e | 6334 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
6335 | |
6336 | case KEY_sqrt: | |
6337 | UNI(OP_SQRT); | |
6338 | ||
6339 | case KEY_srand: | |
6340 | UNI(OP_SRAND); | |
6341 | ||
6342 | case KEY_stat: | |
6343 | UNI(OP_STAT); | |
6344 | ||
6345 | case KEY_study: | |
79072805 LW |
6346 | UNI(OP_STUDY); |
6347 | ||
6348 | case KEY_substr: | |
a0d0e21e | 6349 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
6350 | |
6351 | case KEY_format: | |
6352 | case KEY_sub: | |
93a17b20 | 6353 | really_sub: |
09bef843 | 6354 | { |
3280af22 | 6355 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 6356 | SSize_t tboffset = 0; |
09bef843 | 6357 | expectation attrful; |
d731386a | 6358 | bool have_name, have_proto, bad_proto; |
f54cb97a | 6359 | const int key = tmp; |
09bef843 | 6360 | |
5db06880 NC |
6361 | #ifdef PERL_MAD |
6362 | SV *tmpwhite = 0; | |
6363 | ||
cd81e915 | 6364 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
5db06880 | 6365 | SV *subtoken = newSVpvn(tstart, s - tstart); |
cd81e915 | 6366 | PL_thistoken = 0; |
5db06880 NC |
6367 | |
6368 | d = s; | |
6369 | s = SKIPSPACE2(s,tmpwhite); | |
6370 | #else | |
09bef843 | 6371 | s = skipspace(s); |
5db06880 | 6372 | #endif |
09bef843 | 6373 | |
7e2040f0 | 6374 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
6375 | (*s == ':' && s[1] == ':')) |
6376 | { | |
5db06880 NC |
6377 | #ifdef PERL_MAD |
6378 | SV *nametoke; | |
6379 | #endif | |
6380 | ||
09bef843 SB |
6381 | PL_expect = XBLOCK; |
6382 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
6383 | /* remember buffer pos'n for later force_word */ |
6384 | tboffset = s - PL_oldbufptr; | |
09bef843 | 6385 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5db06880 NC |
6386 | #ifdef PERL_MAD |
6387 | if (PL_madskills) | |
6388 | nametoke = newSVpvn(s, d - s); | |
6389 | #endif | |
09bef843 SB |
6390 | if (strchr(tmpbuf, ':')) |
6391 | sv_setpv(PL_subname, tmpbuf); | |
6392 | else { | |
6393 | sv_setsv(PL_subname,PL_curstname); | |
396482e1 | 6394 | sv_catpvs(PL_subname,"::"); |
09bef843 SB |
6395 | sv_catpvn(PL_subname,tmpbuf,len); |
6396 | } | |
09bef843 | 6397 | have_name = TRUE; |
5db06880 NC |
6398 | |
6399 | #ifdef PERL_MAD | |
6400 | ||
6401 | start_force(0); | |
6402 | CURMAD('X', nametoke); | |
6403 | CURMAD('_', tmpwhite); | |
6404 | (void) force_word(PL_oldbufptr + tboffset, WORD, | |
6405 | FALSE, TRUE, TRUE); | |
6406 | ||
6407 | s = SKIPSPACE2(d,tmpwhite); | |
6408 | #else | |
6409 | s = skipspace(d); | |
6410 | #endif | |
09bef843 | 6411 | } |
463ee0b2 | 6412 | else { |
09bef843 SB |
6413 | if (key == KEY_my) |
6414 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
6415 | PL_expect = XTERMBLOCK; | |
6416 | attrful = XATTRTERM; | |
c69006e4 | 6417 | sv_setpvn(PL_subname,"?",1); |
09bef843 | 6418 | have_name = FALSE; |
463ee0b2 | 6419 | } |
4633a7c4 | 6420 | |
09bef843 SB |
6421 | if (key == KEY_format) { |
6422 | if (*s == '=') | |
6423 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5db06880 | 6424 | #ifdef PERL_MAD |
cd81e915 | 6425 | PL_thistoken = subtoken; |
5db06880 NC |
6426 | s = d; |
6427 | #else | |
09bef843 | 6428 | if (have_name) |
b1b65b59 JH |
6429 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6430 | FALSE, TRUE, TRUE); | |
5db06880 | 6431 | #endif |
09bef843 SB |
6432 | OPERATOR(FORMAT); |
6433 | } | |
79072805 | 6434 | |
09bef843 SB |
6435 | /* Look for a prototype */ |
6436 | if (*s == '(') { | |
6437 | char *p; | |
6438 | ||
5db06880 | 6439 | s = scan_str(s,!!PL_madskills,FALSE); |
37fd879b | 6440 | if (!s) |
09bef843 | 6441 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 6442 | /* strip spaces and check for bad characters */ |
09bef843 SB |
6443 | d = SvPVX(PL_lex_stuff); |
6444 | tmp = 0; | |
d731386a | 6445 | bad_proto = FALSE; |
09bef843 | 6446 | for (p = d; *p; ++p) { |
d37a9538 | 6447 | if (!isSPACE(*p)) { |
09bef843 | 6448 | d[tmp++] = *p; |
d37a9538 ST |
6449 | if (!strchr("$@%*;[]&\\", *p)) |
6450 | bad_proto = TRUE; | |
6451 | } | |
09bef843 SB |
6452 | } |
6453 | d[tmp] = '\0'; | |
420cdfc1 | 6454 | if (bad_proto && ckWARN(WARN_SYNTAX)) |
9014280d | 6455 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
35c1215d NC |
6456 | "Illegal character in prototype for %"SVf" : %s", |
6457 | PL_subname, d); | |
b162af07 | 6458 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 6459 | have_proto = TRUE; |
68dc0745 | 6460 | |
5db06880 NC |
6461 | #ifdef PERL_MAD |
6462 | start_force(0); | |
cd81e915 | 6463 | CURMAD('q', PL_thisopen); |
5db06880 | 6464 | CURMAD('_', tmpwhite); |
cd81e915 NC |
6465 | CURMAD('=', PL_thisstuff); |
6466 | CURMAD('Q', PL_thisclose); | |
5db06880 NC |
6467 | NEXTVAL_NEXTTOKE.opval = |
6468 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
6469 | PL_lex_stuff = Nullsv; | |
6470 | force_next(THING); | |
6471 | ||
6472 | s = SKIPSPACE2(s,tmpwhite); | |
6473 | #else | |
09bef843 | 6474 | s = skipspace(s); |
5db06880 | 6475 | #endif |
4633a7c4 | 6476 | } |
09bef843 SB |
6477 | else |
6478 | have_proto = FALSE; | |
6479 | ||
6480 | if (*s == ':' && s[1] != ':') | |
6481 | PL_expect = attrful; | |
8e742a20 MHM |
6482 | else if (*s != '{' && key == KEY_sub) { |
6483 | if (!have_name) | |
6484 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
6485 | else if (*s != ';') | |
6486 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, PL_subname); | |
6487 | } | |
09bef843 | 6488 | |
5db06880 NC |
6489 | #ifdef PERL_MAD |
6490 | start_force(0); | |
6491 | if (tmpwhite) { | |
6492 | if (PL_madskills) | |
6493 | curmad('^', newSVpvn("",0)); | |
6494 | CURMAD('_', tmpwhite); | |
6495 | } | |
6496 | force_next(0); | |
6497 | ||
cd81e915 | 6498 | PL_thistoken = subtoken; |
5db06880 | 6499 | #else |
09bef843 | 6500 | if (have_proto) { |
9ded7720 | 6501 | NEXTVAL_NEXTTOKE.opval = |
b1b65b59 | 6502 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); |
a0714e2c | 6503 | PL_lex_stuff = NULL; |
09bef843 | 6504 | force_next(THING); |
68dc0745 | 6505 | } |
5db06880 | 6506 | #endif |
09bef843 | 6507 | if (!have_name) { |
c99da370 JH |
6508 | sv_setpv(PL_subname, |
6509 | PL_curstash ? "__ANON__" : "__ANON__::__ANON__"); | |
09bef843 | 6510 | TOKEN(ANONSUB); |
4633a7c4 | 6511 | } |
5db06880 | 6512 | #ifndef PERL_MAD |
b1b65b59 JH |
6513 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6514 | FALSE, TRUE, TRUE); | |
5db06880 | 6515 | #endif |
09bef843 SB |
6516 | if (key == KEY_my) |
6517 | TOKEN(MYSUB); | |
6518 | TOKEN(SUB); | |
4633a7c4 | 6519 | } |
79072805 LW |
6520 | |
6521 | case KEY_system: | |
6522 | set_csh(); | |
a0d0e21e | 6523 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
6524 | |
6525 | case KEY_symlink: | |
a0d0e21e | 6526 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
6527 | |
6528 | case KEY_syscall: | |
a0d0e21e | 6529 | LOP(OP_SYSCALL,XTERM); |
79072805 | 6530 | |
c07a80fd | 6531 | case KEY_sysopen: |
6532 | LOP(OP_SYSOPEN,XTERM); | |
6533 | ||
137443ea | 6534 | case KEY_sysseek: |
6535 | LOP(OP_SYSSEEK,XTERM); | |
6536 | ||
79072805 | 6537 | case KEY_sysread: |
a0d0e21e | 6538 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
6539 | |
6540 | case KEY_syswrite: | |
a0d0e21e | 6541 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
6542 | |
6543 | case KEY_tr: | |
6544 | s = scan_trans(s); | |
6545 | TERM(sublex_start()); | |
6546 | ||
6547 | case KEY_tell: | |
6548 | UNI(OP_TELL); | |
6549 | ||
6550 | case KEY_telldir: | |
6551 | UNI(OP_TELLDIR); | |
6552 | ||
463ee0b2 | 6553 | case KEY_tie: |
a0d0e21e | 6554 | LOP(OP_TIE,XTERM); |
463ee0b2 | 6555 | |
c07a80fd | 6556 | case KEY_tied: |
6557 | UNI(OP_TIED); | |
6558 | ||
79072805 LW |
6559 | case KEY_time: |
6560 | FUN0(OP_TIME); | |
6561 | ||
6562 | case KEY_times: | |
6563 | FUN0(OP_TMS); | |
6564 | ||
6565 | case KEY_truncate: | |
a0d0e21e | 6566 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
6567 | |
6568 | case KEY_uc: | |
6569 | UNI(OP_UC); | |
6570 | ||
6571 | case KEY_ucfirst: | |
6572 | UNI(OP_UCFIRST); | |
6573 | ||
463ee0b2 LW |
6574 | case KEY_untie: |
6575 | UNI(OP_UNTIE); | |
6576 | ||
79072805 | 6577 | case KEY_until: |
57843af0 | 6578 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6579 | OPERATOR(UNTIL); |
6580 | ||
6581 | case KEY_unless: | |
57843af0 | 6582 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6583 | OPERATOR(UNLESS); |
6584 | ||
6585 | case KEY_unlink: | |
a0d0e21e | 6586 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
6587 | |
6588 | case KEY_undef: | |
6f33ba73 | 6589 | UNIDOR(OP_UNDEF); |
79072805 LW |
6590 | |
6591 | case KEY_unpack: | |
a0d0e21e | 6592 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
6593 | |
6594 | case KEY_utime: | |
a0d0e21e | 6595 | LOP(OP_UTIME,XTERM); |
79072805 LW |
6596 | |
6597 | case KEY_umask: | |
6f33ba73 | 6598 | UNIDOR(OP_UMASK); |
79072805 LW |
6599 | |
6600 | case KEY_unshift: | |
a0d0e21e LW |
6601 | LOP(OP_UNSHIFT,XTERM); |
6602 | ||
6603 | case KEY_use: | |
468aa647 | 6604 | s = tokenize_use(1, s); |
a0d0e21e | 6605 | OPERATOR(USE); |
79072805 LW |
6606 | |
6607 | case KEY_values: | |
6608 | UNI(OP_VALUES); | |
6609 | ||
6610 | case KEY_vec: | |
a0d0e21e | 6611 | LOP(OP_VEC,XTERM); |
79072805 | 6612 | |
0d863452 RH |
6613 | case KEY_when: |
6614 | yylval.ival = CopLINE(PL_curcop); | |
6615 | OPERATOR(WHEN); | |
6616 | ||
79072805 | 6617 | case KEY_while: |
57843af0 | 6618 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6619 | OPERATOR(WHILE); |
6620 | ||
6621 | case KEY_warn: | |
3280af22 | 6622 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 6623 | LOP(OP_WARN,XTERM); |
79072805 LW |
6624 | |
6625 | case KEY_wait: | |
6626 | FUN0(OP_WAIT); | |
6627 | ||
6628 | case KEY_waitpid: | |
a0d0e21e | 6629 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
6630 | |
6631 | case KEY_wantarray: | |
6632 | FUN0(OP_WANTARRAY); | |
6633 | ||
6634 | case KEY_write: | |
9d116dd7 JH |
6635 | #ifdef EBCDIC |
6636 | { | |
df3728a2 JH |
6637 | char ctl_l[2]; |
6638 | ctl_l[0] = toCTRL('L'); | |
6639 | ctl_l[1] = '\0'; | |
fafc274c | 6640 | gv_fetchpvn_flags(ctl_l, 1, GV_ADD|GV_NOTQUAL, SVt_PV); |
9d116dd7 JH |
6641 | } |
6642 | #else | |
fafc274c NC |
6643 | /* Make sure $^L is defined */ |
6644 | gv_fetchpvs("\f", GV_ADD|GV_NOTQUAL, SVt_PV); | |
9d116dd7 | 6645 | #endif |
79072805 LW |
6646 | UNI(OP_ENTERWRITE); |
6647 | ||
6648 | case KEY_x: | |
3280af22 | 6649 | if (PL_expect == XOPERATOR) |
79072805 LW |
6650 | Mop(OP_REPEAT); |
6651 | check_uni(); | |
6652 | goto just_a_word; | |
6653 | ||
a0d0e21e LW |
6654 | case KEY_xor: |
6655 | yylval.ival = OP_XOR; | |
6656 | OPERATOR(OROP); | |
6657 | ||
79072805 LW |
6658 | case KEY_y: |
6659 | s = scan_trans(s); | |
6660 | TERM(sublex_start()); | |
6661 | } | |
49dc05e3 | 6662 | }} |
79072805 | 6663 | } |
bf4acbe4 GS |
6664 | #ifdef __SC__ |
6665 | #pragma segment Main | |
6666 | #endif | |
79072805 | 6667 | |
e930465f JH |
6668 | static int |
6669 | S_pending_ident(pTHX) | |
8eceec63 | 6670 | { |
97aff369 | 6671 | dVAR; |
8eceec63 | 6672 | register char *d; |
a55b55d8 | 6673 | register I32 tmp = 0; |
8eceec63 SC |
6674 | /* pit holds the identifier we read and pending_ident is reset */ |
6675 | char pit = PL_pending_ident; | |
6676 | PL_pending_ident = 0; | |
6677 | ||
cd81e915 | 6678 | /* PL_realtokenstart = realtokenend = PL_bufptr - SvPVX(PL_linestr); */ |
8eceec63 | 6679 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 6680 | "### Pending identifier '%s'\n", PL_tokenbuf); }); |
8eceec63 SC |
6681 | |
6682 | /* if we're in a my(), we can't allow dynamics here. | |
6683 | $foo'bar has already been turned into $foo::bar, so | |
6684 | just check for colons. | |
6685 | ||
6686 | if it's a legal name, the OP is a PADANY. | |
6687 | */ | |
6688 | if (PL_in_my) { | |
6689 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
6690 | if (strchr(PL_tokenbuf,':')) | |
6691 | yyerror(Perl_form(aTHX_ "No package name allowed for " | |
6692 | "variable %s in \"our\"", | |
6693 | PL_tokenbuf)); | |
dd2155a4 | 6694 | tmp = allocmy(PL_tokenbuf); |
8eceec63 SC |
6695 | } |
6696 | else { | |
6697 | if (strchr(PL_tokenbuf,':')) | |
6698 | yyerror(Perl_form(aTHX_ PL_no_myglob,PL_tokenbuf)); | |
6699 | ||
6700 | yylval.opval = newOP(OP_PADANY, 0); | |
dd2155a4 | 6701 | yylval.opval->op_targ = allocmy(PL_tokenbuf); |
8eceec63 SC |
6702 | return PRIVATEREF; |
6703 | } | |
6704 | } | |
6705 | ||
6706 | /* | |
6707 | build the ops for accesses to a my() variable. | |
6708 | ||
6709 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
6710 | then used in a comparison. This catches most, but not | |
6711 | all cases. For instance, it catches | |
6712 | sort { my($a); $a <=> $b } | |
6713 | but not | |
6714 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
6715 | (although why you'd do that is anyone's guess). | |
6716 | */ | |
6717 | ||
6718 | if (!strchr(PL_tokenbuf,':')) { | |
8716503d DM |
6719 | if (!PL_in_my) |
6720 | tmp = pad_findmy(PL_tokenbuf); | |
6721 | if (tmp != NOT_IN_PAD) { | |
8eceec63 | 6722 | /* might be an "our" variable" */ |
00b1698f | 6723 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
8eceec63 | 6724 | /* build ops for a bareword */ |
b64e5050 AL |
6725 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
6726 | HEK * const stashname = HvNAME_HEK(stash); | |
6727 | SV * const sym = newSVhek(stashname); | |
396482e1 | 6728 | sv_catpvs(sym, "::"); |
8eceec63 SC |
6729 | sv_catpv(sym, PL_tokenbuf+1); |
6730 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); | |
6731 | yylval.opval->op_private = OPpCONST_ENTERED; | |
7a5fd60d | 6732 | gv_fetchsv(sym, |
8eceec63 SC |
6733 | (PL_in_eval |
6734 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 6735 | : GV_ADDMULTI |
8eceec63 SC |
6736 | ), |
6737 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
6738 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
6739 | : SVt_PVHV)); | |
6740 | return WORD; | |
6741 | } | |
6742 | ||
6743 | /* if it's a sort block and they're naming $a or $b */ | |
6744 | if (PL_last_lop_op == OP_SORT && | |
6745 | PL_tokenbuf[0] == '$' && | |
6746 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
6747 | && !PL_tokenbuf[2]) | |
6748 | { | |
6749 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
6750 | d < PL_bufend && *d != '\n'; | |
6751 | d++) | |
6752 | { | |
6753 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
6754 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
6755 | PL_tokenbuf); | |
6756 | } | |
6757 | } | |
6758 | } | |
6759 | ||
6760 | yylval.opval = newOP(OP_PADANY, 0); | |
6761 | yylval.opval->op_targ = tmp; | |
6762 | return PRIVATEREF; | |
6763 | } | |
6764 | } | |
6765 | ||
6766 | /* | |
6767 | Whine if they've said @foo in a doublequoted string, | |
6768 | and @foo isn't a variable we can find in the symbol | |
6769 | table. | |
6770 | */ | |
6771 | if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
f776e3cd | 6772 | GV *gv = gv_fetchpv(PL_tokenbuf+1, 0, SVt_PVAV); |
8eceec63 SC |
6773 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
6774 | && ckWARN(WARN_AMBIGUOUS)) | |
6775 | { | |
6776 | /* Downgraded from fatal to warning 20000522 mjd */ | |
9014280d | 6777 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
8eceec63 SC |
6778 | "Possible unintended interpolation of %s in string", |
6779 | PL_tokenbuf); | |
6780 | } | |
6781 | } | |
6782 | ||
6783 | /* build ops for a bareword */ | |
6784 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf+1, 0)); | |
6785 | yylval.opval->op_private = OPpCONST_ENTERED; | |
adc51b97 RGS |
6786 | gv_fetchpv( |
6787 | PL_tokenbuf+1, | |
d6069db2 RGS |
6788 | /* If the identifier refers to a stash, don't autovivify it. |
6789 | * Change 24660 had the side effect of causing symbol table | |
6790 | * hashes to always be defined, even if they were freshly | |
6791 | * created and the only reference in the entire program was | |
6792 | * the single statement with the defined %foo::bar:: test. | |
6793 | * It appears that all code in the wild doing this actually | |
6794 | * wants to know whether sub-packages have been loaded, so | |
6795 | * by avoiding auto-vivifying symbol tables, we ensure that | |
6796 | * defined %foo::bar:: continues to be false, and the existing | |
6797 | * tests still give the expected answers, even though what | |
6798 | * they're actually testing has now changed subtly. | |
6799 | */ | |
6800 | (*PL_tokenbuf == '%' && *(d = PL_tokenbuf + strlen(PL_tokenbuf) - 1) == ':' && d[-1] == ':' | |
6801 | ? 0 | |
6802 | : PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD), | |
adc51b97 RGS |
6803 | ((PL_tokenbuf[0] == '$') ? SVt_PV |
6804 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
6805 | : SVt_PVHV)); | |
8eceec63 SC |
6806 | return WORD; |
6807 | } | |
6808 | ||
4c3bbe0f MHM |
6809 | /* |
6810 | * The following code was generated by perl_keyword.pl. | |
6811 | */ | |
e2e1dd5a | 6812 | |
79072805 | 6813 | I32 |
672994ce | 6814 | Perl_keyword (pTHX_ const char *name, I32 len) |
4c3bbe0f | 6815 | { |
97aff369 | 6816 | dVAR; |
4c3bbe0f MHM |
6817 | switch (len) |
6818 | { | |
6819 | case 1: /* 5 tokens of length 1 */ | |
6820 | switch (name[0]) | |
e2e1dd5a | 6821 | { |
4c3bbe0f MHM |
6822 | case 'm': |
6823 | { /* m */ | |
6824 | return KEY_m; | |
6825 | } | |
6826 | ||
4c3bbe0f MHM |
6827 | case 'q': |
6828 | { /* q */ | |
6829 | return KEY_q; | |
6830 | } | |
6831 | ||
4c3bbe0f MHM |
6832 | case 's': |
6833 | { /* s */ | |
6834 | return KEY_s; | |
6835 | } | |
6836 | ||
4c3bbe0f MHM |
6837 | case 'x': |
6838 | { /* x */ | |
6839 | return -KEY_x; | |
6840 | } | |
6841 | ||
4c3bbe0f MHM |
6842 | case 'y': |
6843 | { /* y */ | |
6844 | return KEY_y; | |
6845 | } | |
6846 | ||
4c3bbe0f MHM |
6847 | default: |
6848 | goto unknown; | |
e2e1dd5a | 6849 | } |
4c3bbe0f MHM |
6850 | |
6851 | case 2: /* 18 tokens of length 2 */ | |
6852 | switch (name[0]) | |
e2e1dd5a | 6853 | { |
4c3bbe0f MHM |
6854 | case 'd': |
6855 | if (name[1] == 'o') | |
6856 | { /* do */ | |
6857 | return KEY_do; | |
6858 | } | |
6859 | ||
6860 | goto unknown; | |
6861 | ||
6862 | case 'e': | |
6863 | if (name[1] == 'q') | |
6864 | { /* eq */ | |
6865 | return -KEY_eq; | |
6866 | } | |
6867 | ||
6868 | goto unknown; | |
6869 | ||
6870 | case 'g': | |
6871 | switch (name[1]) | |
6872 | { | |
6873 | case 'e': | |
6874 | { /* ge */ | |
6875 | return -KEY_ge; | |
6876 | } | |
6877 | ||
4c3bbe0f MHM |
6878 | case 't': |
6879 | { /* gt */ | |
6880 | return -KEY_gt; | |
6881 | } | |
6882 | ||
4c3bbe0f MHM |
6883 | default: |
6884 | goto unknown; | |
6885 | } | |
6886 | ||
6887 | case 'i': | |
6888 | if (name[1] == 'f') | |
6889 | { /* if */ | |
6890 | return KEY_if; | |
6891 | } | |
6892 | ||
6893 | goto unknown; | |
6894 | ||
6895 | case 'l': | |
6896 | switch (name[1]) | |
6897 | { | |
6898 | case 'c': | |
6899 | { /* lc */ | |
6900 | return -KEY_lc; | |
6901 | } | |
6902 | ||
4c3bbe0f MHM |
6903 | case 'e': |
6904 | { /* le */ | |
6905 | return -KEY_le; | |
6906 | } | |
6907 | ||
4c3bbe0f MHM |
6908 | case 't': |
6909 | { /* lt */ | |
6910 | return -KEY_lt; | |
6911 | } | |
6912 | ||
4c3bbe0f MHM |
6913 | default: |
6914 | goto unknown; | |
6915 | } | |
6916 | ||
6917 | case 'm': | |
6918 | if (name[1] == 'y') | |
6919 | { /* my */ | |
6920 | return KEY_my; | |
6921 | } | |
6922 | ||
6923 | goto unknown; | |
6924 | ||
6925 | case 'n': | |
6926 | switch (name[1]) | |
6927 | { | |
6928 | case 'e': | |
6929 | { /* ne */ | |
6930 | return -KEY_ne; | |
6931 | } | |
6932 | ||
4c3bbe0f MHM |
6933 | case 'o': |
6934 | { /* no */ | |
6935 | return KEY_no; | |
6936 | } | |
6937 | ||
4c3bbe0f MHM |
6938 | default: |
6939 | goto unknown; | |
6940 | } | |
6941 | ||
6942 | case 'o': | |
6943 | if (name[1] == 'r') | |
6944 | { /* or */ | |
6945 | return -KEY_or; | |
6946 | } | |
6947 | ||
6948 | goto unknown; | |
6949 | ||
6950 | case 'q': | |
6951 | switch (name[1]) | |
6952 | { | |
6953 | case 'q': | |
6954 | { /* qq */ | |
6955 | return KEY_qq; | |
6956 | } | |
6957 | ||
4c3bbe0f MHM |
6958 | case 'r': |
6959 | { /* qr */ | |
6960 | return KEY_qr; | |
6961 | } | |
6962 | ||
4c3bbe0f MHM |
6963 | case 'w': |
6964 | { /* qw */ | |
6965 | return KEY_qw; | |
6966 | } | |
6967 | ||
4c3bbe0f MHM |
6968 | case 'x': |
6969 | { /* qx */ | |
6970 | return KEY_qx; | |
6971 | } | |
6972 | ||
4c3bbe0f MHM |
6973 | default: |
6974 | goto unknown; | |
6975 | } | |
6976 | ||
6977 | case 't': | |
6978 | if (name[1] == 'r') | |
6979 | { /* tr */ | |
6980 | return KEY_tr; | |
6981 | } | |
6982 | ||
6983 | goto unknown; | |
6984 | ||
6985 | case 'u': | |
6986 | if (name[1] == 'c') | |
6987 | { /* uc */ | |
6988 | return -KEY_uc; | |
6989 | } | |
6990 | ||
6991 | goto unknown; | |
6992 | ||
6993 | default: | |
6994 | goto unknown; | |
e2e1dd5a | 6995 | } |
4c3bbe0f | 6996 | |
0d863452 | 6997 | case 3: /* 29 tokens of length 3 */ |
4c3bbe0f | 6998 | switch (name[0]) |
e2e1dd5a | 6999 | { |
4c3bbe0f MHM |
7000 | case 'E': |
7001 | if (name[1] == 'N' && | |
7002 | name[2] == 'D') | |
7003 | { /* END */ | |
7004 | return KEY_END; | |
7005 | } | |
7006 | ||
7007 | goto unknown; | |
7008 | ||
7009 | case 'a': | |
7010 | switch (name[1]) | |
7011 | { | |
7012 | case 'b': | |
7013 | if (name[2] == 's') | |
7014 | { /* abs */ | |
7015 | return -KEY_abs; | |
7016 | } | |
7017 | ||
7018 | goto unknown; | |
7019 | ||
7020 | case 'n': | |
7021 | if (name[2] == 'd') | |
7022 | { /* and */ | |
7023 | return -KEY_and; | |
7024 | } | |
7025 | ||
7026 | goto unknown; | |
7027 | ||
7028 | default: | |
7029 | goto unknown; | |
7030 | } | |
7031 | ||
7032 | case 'c': | |
7033 | switch (name[1]) | |
7034 | { | |
7035 | case 'h': | |
7036 | if (name[2] == 'r') | |
7037 | { /* chr */ | |
7038 | return -KEY_chr; | |
7039 | } | |
7040 | ||
7041 | goto unknown; | |
7042 | ||
7043 | case 'm': | |
7044 | if (name[2] == 'p') | |
7045 | { /* cmp */ | |
7046 | return -KEY_cmp; | |
7047 | } | |
7048 | ||
7049 | goto unknown; | |
7050 | ||
7051 | case 'o': | |
7052 | if (name[2] == 's') | |
7053 | { /* cos */ | |
7054 | return -KEY_cos; | |
7055 | } | |
7056 | ||
7057 | goto unknown; | |
7058 | ||
7059 | default: | |
7060 | goto unknown; | |
7061 | } | |
7062 | ||
7063 | case 'd': | |
7064 | if (name[1] == 'i' && | |
7065 | name[2] == 'e') | |
7066 | { /* die */ | |
7067 | return -KEY_die; | |
7068 | } | |
7069 | ||
7070 | goto unknown; | |
7071 | ||
7072 | case 'e': | |
7073 | switch (name[1]) | |
7074 | { | |
7075 | case 'o': | |
7076 | if (name[2] == 'f') | |
7077 | { /* eof */ | |
7078 | return -KEY_eof; | |
7079 | } | |
7080 | ||
7081 | goto unknown; | |
7082 | ||
7083 | case 'r': | |
7084 | if (name[2] == 'r') | |
7085 | { /* err */ | |
ef89dcc3 | 7086 | return (FEATURE_IS_ENABLED("err") ? -KEY_err : 0); |
4c3bbe0f MHM |
7087 | } |
7088 | ||
7089 | goto unknown; | |
7090 | ||
7091 | case 'x': | |
7092 | if (name[2] == 'p') | |
7093 | { /* exp */ | |
7094 | return -KEY_exp; | |
7095 | } | |
7096 | ||
7097 | goto unknown; | |
7098 | ||
7099 | default: | |
7100 | goto unknown; | |
7101 | } | |
7102 | ||
7103 | case 'f': | |
7104 | if (name[1] == 'o' && | |
7105 | name[2] == 'r') | |
7106 | { /* for */ | |
7107 | return KEY_for; | |
7108 | } | |
7109 | ||
7110 | goto unknown; | |
7111 | ||
7112 | case 'h': | |
7113 | if (name[1] == 'e' && | |
7114 | name[2] == 'x') | |
7115 | { /* hex */ | |
7116 | return -KEY_hex; | |
7117 | } | |
7118 | ||
7119 | goto unknown; | |
7120 | ||
7121 | case 'i': | |
7122 | if (name[1] == 'n' && | |
7123 | name[2] == 't') | |
7124 | { /* int */ | |
7125 | return -KEY_int; | |
7126 | } | |
7127 | ||
7128 | goto unknown; | |
7129 | ||
7130 | case 'l': | |
7131 | if (name[1] == 'o' && | |
7132 | name[2] == 'g') | |
7133 | { /* log */ | |
7134 | return -KEY_log; | |
7135 | } | |
7136 | ||
7137 | goto unknown; | |
7138 | ||
7139 | case 'm': | |
7140 | if (name[1] == 'a' && | |
7141 | name[2] == 'p') | |
7142 | { /* map */ | |
7143 | return KEY_map; | |
7144 | } | |
7145 | ||
7146 | goto unknown; | |
7147 | ||
7148 | case 'n': | |
7149 | if (name[1] == 'o' && | |
7150 | name[2] == 't') | |
7151 | { /* not */ | |
7152 | return -KEY_not; | |
7153 | } | |
7154 | ||
7155 | goto unknown; | |
7156 | ||
7157 | case 'o': | |
7158 | switch (name[1]) | |
7159 | { | |
7160 | case 'c': | |
7161 | if (name[2] == 't') | |
7162 | { /* oct */ | |
7163 | return -KEY_oct; | |
7164 | } | |
7165 | ||
7166 | goto unknown; | |
7167 | ||
7168 | case 'r': | |
7169 | if (name[2] == 'd') | |
7170 | { /* ord */ | |
7171 | return -KEY_ord; | |
7172 | } | |
7173 | ||
7174 | goto unknown; | |
7175 | ||
7176 | case 'u': | |
7177 | if (name[2] == 'r') | |
7178 | { /* our */ | |
7179 | return KEY_our; | |
7180 | } | |
7181 | ||
7182 | goto unknown; | |
7183 | ||
7184 | default: | |
7185 | goto unknown; | |
7186 | } | |
7187 | ||
7188 | case 'p': | |
7189 | if (name[1] == 'o') | |
7190 | { | |
7191 | switch (name[2]) | |
7192 | { | |
7193 | case 'p': | |
7194 | { /* pop */ | |
7195 | return -KEY_pop; | |
7196 | } | |
7197 | ||
4c3bbe0f MHM |
7198 | case 's': |
7199 | { /* pos */ | |
7200 | return KEY_pos; | |
7201 | } | |
7202 | ||
4c3bbe0f MHM |
7203 | default: |
7204 | goto unknown; | |
7205 | } | |
7206 | } | |
7207 | ||
7208 | goto unknown; | |
7209 | ||
7210 | case 'r': | |
7211 | if (name[1] == 'e' && | |
7212 | name[2] == 'f') | |
7213 | { /* ref */ | |
7214 | return -KEY_ref; | |
7215 | } | |
7216 | ||
7217 | goto unknown; | |
7218 | ||
7219 | case 's': | |
7220 | switch (name[1]) | |
7221 | { | |
0d863452 RH |
7222 | case 'a': |
7223 | if (name[2] == 'y') | |
7224 | { /* say */ | |
ef89dcc3 | 7225 | return (FEATURE_IS_ENABLED("say") ? -KEY_say : 0); |
0d863452 RH |
7226 | } |
7227 | ||
7228 | goto unknown; | |
7229 | ||
4c3bbe0f MHM |
7230 | case 'i': |
7231 | if (name[2] == 'n') | |
7232 | { /* sin */ | |
7233 | return -KEY_sin; | |
7234 | } | |
7235 | ||
7236 | goto unknown; | |
7237 | ||
7238 | case 'u': | |
7239 | if (name[2] == 'b') | |
7240 | { /* sub */ | |
7241 | return KEY_sub; | |
7242 | } | |
7243 | ||
7244 | goto unknown; | |
7245 | ||
7246 | default: | |
7247 | goto unknown; | |
7248 | } | |
7249 | ||
7250 | case 't': | |
7251 | if (name[1] == 'i' && | |
7252 | name[2] == 'e') | |
7253 | { /* tie */ | |
7254 | return KEY_tie; | |
7255 | } | |
7256 | ||
7257 | goto unknown; | |
7258 | ||
7259 | case 'u': | |
7260 | if (name[1] == 's' && | |
7261 | name[2] == 'e') | |
7262 | { /* use */ | |
7263 | return KEY_use; | |
7264 | } | |
7265 | ||
7266 | goto unknown; | |
7267 | ||
7268 | case 'v': | |
7269 | if (name[1] == 'e' && | |
7270 | name[2] == 'c') | |
7271 | { /* vec */ | |
7272 | return -KEY_vec; | |
7273 | } | |
7274 | ||
7275 | goto unknown; | |
7276 | ||
7277 | case 'x': | |
7278 | if (name[1] == 'o' && | |
7279 | name[2] == 'r') | |
7280 | { /* xor */ | |
7281 | return -KEY_xor; | |
7282 | } | |
7283 | ||
7284 | goto unknown; | |
7285 | ||
7286 | default: | |
7287 | goto unknown; | |
e2e1dd5a | 7288 | } |
4c3bbe0f | 7289 | |
0d863452 | 7290 | case 4: /* 41 tokens of length 4 */ |
4c3bbe0f | 7291 | switch (name[0]) |
e2e1dd5a | 7292 | { |
4c3bbe0f MHM |
7293 | case 'C': |
7294 | if (name[1] == 'O' && | |
7295 | name[2] == 'R' && | |
7296 | name[3] == 'E') | |
7297 | { /* CORE */ | |
7298 | return -KEY_CORE; | |
7299 | } | |
7300 | ||
7301 | goto unknown; | |
7302 | ||
7303 | case 'I': | |
7304 | if (name[1] == 'N' && | |
7305 | name[2] == 'I' && | |
7306 | name[3] == 'T') | |
7307 | { /* INIT */ | |
7308 | return KEY_INIT; | |
7309 | } | |
7310 | ||
7311 | goto unknown; | |
7312 | ||
7313 | case 'b': | |
7314 | if (name[1] == 'i' && | |
7315 | name[2] == 'n' && | |
7316 | name[3] == 'd') | |
7317 | { /* bind */ | |
7318 | return -KEY_bind; | |
7319 | } | |
7320 | ||
7321 | goto unknown; | |
7322 | ||
7323 | case 'c': | |
7324 | if (name[1] == 'h' && | |
7325 | name[2] == 'o' && | |
7326 | name[3] == 'p') | |
7327 | { /* chop */ | |
7328 | return -KEY_chop; | |
7329 | } | |
7330 | ||
7331 | goto unknown; | |
7332 | ||
7333 | case 'd': | |
7334 | if (name[1] == 'u' && | |
7335 | name[2] == 'm' && | |
7336 | name[3] == 'p') | |
7337 | { /* dump */ | |
7338 | return -KEY_dump; | |
7339 | } | |
7340 | ||
7341 | goto unknown; | |
7342 | ||
7343 | case 'e': | |
7344 | switch (name[1]) | |
7345 | { | |
7346 | case 'a': | |
7347 | if (name[2] == 'c' && | |
7348 | name[3] == 'h') | |
7349 | { /* each */ | |
7350 | return -KEY_each; | |
7351 | } | |
7352 | ||
7353 | goto unknown; | |
7354 | ||
7355 | case 'l': | |
7356 | if (name[2] == 's' && | |
7357 | name[3] == 'e') | |
7358 | { /* else */ | |
7359 | return KEY_else; | |
7360 | } | |
7361 | ||
7362 | goto unknown; | |
7363 | ||
7364 | case 'v': | |
7365 | if (name[2] == 'a' && | |
7366 | name[3] == 'l') | |
7367 | { /* eval */ | |
7368 | return KEY_eval; | |
7369 | } | |
7370 | ||
7371 | goto unknown; | |
7372 | ||
7373 | case 'x': | |
7374 | switch (name[2]) | |
7375 | { | |
7376 | case 'e': | |
7377 | if (name[3] == 'c') | |
7378 | { /* exec */ | |
7379 | return -KEY_exec; | |
7380 | } | |
7381 | ||
7382 | goto unknown; | |
7383 | ||
7384 | case 'i': | |
7385 | if (name[3] == 't') | |
7386 | { /* exit */ | |
7387 | return -KEY_exit; | |
7388 | } | |
7389 | ||
7390 | goto unknown; | |
7391 | ||
7392 | default: | |
7393 | goto unknown; | |
7394 | } | |
7395 | ||
7396 | default: | |
7397 | goto unknown; | |
7398 | } | |
7399 | ||
7400 | case 'f': | |
7401 | if (name[1] == 'o' && | |
7402 | name[2] == 'r' && | |
7403 | name[3] == 'k') | |
7404 | { /* fork */ | |
7405 | return -KEY_fork; | |
7406 | } | |
7407 | ||
7408 | goto unknown; | |
7409 | ||
7410 | case 'g': | |
7411 | switch (name[1]) | |
7412 | { | |
7413 | case 'e': | |
7414 | if (name[2] == 't' && | |
7415 | name[3] == 'c') | |
7416 | { /* getc */ | |
7417 | return -KEY_getc; | |
7418 | } | |
7419 | ||
7420 | goto unknown; | |
7421 | ||
7422 | case 'l': | |
7423 | if (name[2] == 'o' && | |
7424 | name[3] == 'b') | |
7425 | { /* glob */ | |
7426 | return KEY_glob; | |
7427 | } | |
7428 | ||
7429 | goto unknown; | |
7430 | ||
7431 | case 'o': | |
7432 | if (name[2] == 't' && | |
7433 | name[3] == 'o') | |
7434 | { /* goto */ | |
7435 | return KEY_goto; | |
7436 | } | |
7437 | ||
7438 | goto unknown; | |
7439 | ||
7440 | case 'r': | |
7441 | if (name[2] == 'e' && | |
7442 | name[3] == 'p') | |
7443 | { /* grep */ | |
7444 | return KEY_grep; | |
7445 | } | |
7446 | ||
7447 | goto unknown; | |
7448 | ||
7449 | default: | |
7450 | goto unknown; | |
7451 | } | |
7452 | ||
7453 | case 'j': | |
7454 | if (name[1] == 'o' && | |
7455 | name[2] == 'i' && | |
7456 | name[3] == 'n') | |
7457 | { /* join */ | |
7458 | return -KEY_join; | |
7459 | } | |
7460 | ||
7461 | goto unknown; | |
7462 | ||
7463 | case 'k': | |
7464 | switch (name[1]) | |
7465 | { | |
7466 | case 'e': | |
7467 | if (name[2] == 'y' && | |
7468 | name[3] == 's') | |
7469 | { /* keys */ | |
7470 | return -KEY_keys; | |
7471 | } | |
7472 | ||
7473 | goto unknown; | |
7474 | ||
7475 | case 'i': | |
7476 | if (name[2] == 'l' && | |
7477 | name[3] == 'l') | |
7478 | { /* kill */ | |
7479 | return -KEY_kill; | |
7480 | } | |
7481 | ||
7482 | goto unknown; | |
7483 | ||
7484 | default: | |
7485 | goto unknown; | |
7486 | } | |
7487 | ||
7488 | case 'l': | |
7489 | switch (name[1]) | |
7490 | { | |
7491 | case 'a': | |
7492 | if (name[2] == 's' && | |
7493 | name[3] == 't') | |
7494 | { /* last */ | |
7495 | return KEY_last; | |
7496 | } | |
7497 | ||
7498 | goto unknown; | |
7499 | ||
7500 | case 'i': | |
7501 | if (name[2] == 'n' && | |
7502 | name[3] == 'k') | |
7503 | { /* link */ | |
7504 | return -KEY_link; | |
7505 | } | |
7506 | ||
7507 | goto unknown; | |
7508 | ||
7509 | case 'o': | |
7510 | if (name[2] == 'c' && | |
7511 | name[3] == 'k') | |
7512 | { /* lock */ | |
7513 | return -KEY_lock; | |
7514 | } | |
7515 | ||
7516 | goto unknown; | |
7517 | ||
7518 | default: | |
7519 | goto unknown; | |
7520 | } | |
7521 | ||
7522 | case 'n': | |
7523 | if (name[1] == 'e' && | |
7524 | name[2] == 'x' && | |
7525 | name[3] == 't') | |
7526 | { /* next */ | |
7527 | return KEY_next; | |
7528 | } | |
7529 | ||
7530 | goto unknown; | |
7531 | ||
7532 | case 'o': | |
7533 | if (name[1] == 'p' && | |
7534 | name[2] == 'e' && | |
7535 | name[3] == 'n') | |
7536 | { /* open */ | |
7537 | return -KEY_open; | |
7538 | } | |
7539 | ||
7540 | goto unknown; | |
7541 | ||
7542 | case 'p': | |
7543 | switch (name[1]) | |
7544 | { | |
7545 | case 'a': | |
7546 | if (name[2] == 'c' && | |
7547 | name[3] == 'k') | |
7548 | { /* pack */ | |
7549 | return -KEY_pack; | |
7550 | } | |
7551 | ||
7552 | goto unknown; | |
7553 | ||
7554 | case 'i': | |
7555 | if (name[2] == 'p' && | |
7556 | name[3] == 'e') | |
7557 | { /* pipe */ | |
7558 | return -KEY_pipe; | |
7559 | } | |
7560 | ||
7561 | goto unknown; | |
7562 | ||
7563 | case 'u': | |
7564 | if (name[2] == 's' && | |
7565 | name[3] == 'h') | |
7566 | { /* push */ | |
7567 | return -KEY_push; | |
7568 | } | |
7569 | ||
7570 | goto unknown; | |
7571 | ||
7572 | default: | |
7573 | goto unknown; | |
7574 | } | |
7575 | ||
7576 | case 'r': | |
7577 | switch (name[1]) | |
7578 | { | |
7579 | case 'a': | |
7580 | if (name[2] == 'n' && | |
7581 | name[3] == 'd') | |
7582 | { /* rand */ | |
7583 | return -KEY_rand; | |
7584 | } | |
7585 | ||
7586 | goto unknown; | |
7587 | ||
7588 | case 'e': | |
7589 | switch (name[2]) | |
7590 | { | |
7591 | case 'a': | |
7592 | if (name[3] == 'd') | |
7593 | { /* read */ | |
7594 | return -KEY_read; | |
7595 | } | |
7596 | ||
7597 | goto unknown; | |
7598 | ||
7599 | case 'c': | |
7600 | if (name[3] == 'v') | |
7601 | { /* recv */ | |
7602 | return -KEY_recv; | |
7603 | } | |
7604 | ||
7605 | goto unknown; | |
7606 | ||
7607 | case 'd': | |
7608 | if (name[3] == 'o') | |
7609 | { /* redo */ | |
7610 | return KEY_redo; | |
7611 | } | |
7612 | ||
7613 | goto unknown; | |
7614 | ||
7615 | default: | |
7616 | goto unknown; | |
7617 | } | |
7618 | ||
7619 | default: | |
7620 | goto unknown; | |
7621 | } | |
7622 | ||
7623 | case 's': | |
7624 | switch (name[1]) | |
7625 | { | |
7626 | case 'e': | |
7627 | switch (name[2]) | |
7628 | { | |
7629 | case 'e': | |
7630 | if (name[3] == 'k') | |
7631 | { /* seek */ | |
7632 | return -KEY_seek; | |
7633 | } | |
7634 | ||
7635 | goto unknown; | |
7636 | ||
7637 | case 'n': | |
7638 | if (name[3] == 'd') | |
7639 | { /* send */ | |
7640 | return -KEY_send; | |
7641 | } | |
7642 | ||
7643 | goto unknown; | |
7644 | ||
7645 | default: | |
7646 | goto unknown; | |
7647 | } | |
7648 | ||
7649 | case 'o': | |
7650 | if (name[2] == 'r' && | |
7651 | name[3] == 't') | |
7652 | { /* sort */ | |
7653 | return KEY_sort; | |
7654 | } | |
7655 | ||
7656 | goto unknown; | |
7657 | ||
7658 | case 'q': | |
7659 | if (name[2] == 'r' && | |
7660 | name[3] == 't') | |
7661 | { /* sqrt */ | |
7662 | return -KEY_sqrt; | |
7663 | } | |
7664 | ||
7665 | goto unknown; | |
7666 | ||
7667 | case 't': | |
7668 | if (name[2] == 'a' && | |
7669 | name[3] == 't') | |
7670 | { /* stat */ | |
7671 | return -KEY_stat; | |
7672 | } | |
7673 | ||
7674 | goto unknown; | |
7675 | ||
7676 | default: | |
7677 | goto unknown; | |
7678 | } | |
7679 | ||
7680 | case 't': | |
7681 | switch (name[1]) | |
7682 | { | |
7683 | case 'e': | |
7684 | if (name[2] == 'l' && | |
7685 | name[3] == 'l') | |
7686 | { /* tell */ | |
7687 | return -KEY_tell; | |
7688 | } | |
7689 | ||
7690 | goto unknown; | |
7691 | ||
7692 | case 'i': | |
7693 | switch (name[2]) | |
7694 | { | |
7695 | case 'e': | |
7696 | if (name[3] == 'd') | |
7697 | { /* tied */ | |
7698 | return KEY_tied; | |
7699 | } | |
7700 | ||
7701 | goto unknown; | |
7702 | ||
7703 | case 'm': | |
7704 | if (name[3] == 'e') | |
7705 | { /* time */ | |
7706 | return -KEY_time; | |
7707 | } | |
7708 | ||
7709 | goto unknown; | |
7710 | ||
7711 | default: | |
7712 | goto unknown; | |
7713 | } | |
7714 | ||
7715 | default: | |
7716 | goto unknown; | |
7717 | } | |
7718 | ||
7719 | case 'w': | |
0d863452 | 7720 | switch (name[1]) |
4c3bbe0f | 7721 | { |
0d863452 | 7722 | case 'a': |
4c3bbe0f MHM |
7723 | switch (name[2]) |
7724 | { | |
7725 | case 'i': | |
7726 | if (name[3] == 't') | |
7727 | { /* wait */ | |
7728 | return -KEY_wait; | |
7729 | } | |
7730 | ||
7731 | goto unknown; | |
7732 | ||
7733 | case 'r': | |
7734 | if (name[3] == 'n') | |
7735 | { /* warn */ | |
7736 | return -KEY_warn; | |
7737 | } | |
7738 | ||
7739 | goto unknown; | |
7740 | ||
7741 | default: | |
7742 | goto unknown; | |
7743 | } | |
0d863452 RH |
7744 | |
7745 | case 'h': | |
7746 | if (name[2] == 'e' && | |
7747 | name[3] == 'n') | |
7748 | { /* when */ | |
ef89dcc3 | 7749 | return (FEATURE_IS_ENABLED("switch") ? KEY_when : 0); |
4c3bbe0f MHM |
7750 | } |
7751 | ||
7752 | goto unknown; | |
7753 | ||
7754 | default: | |
7755 | goto unknown; | |
e2e1dd5a | 7756 | } |
4c3bbe0f | 7757 | |
0d863452 RH |
7758 | default: |
7759 | goto unknown; | |
7760 | } | |
7761 | ||
7762 | case 5: /* 38 tokens of length 5 */ | |
4c3bbe0f | 7763 | switch (name[0]) |
e2e1dd5a | 7764 | { |
4c3bbe0f MHM |
7765 | case 'B': |
7766 | if (name[1] == 'E' && | |
7767 | name[2] == 'G' && | |
7768 | name[3] == 'I' && | |
7769 | name[4] == 'N') | |
7770 | { /* BEGIN */ | |
7771 | return KEY_BEGIN; | |
7772 | } | |
7773 | ||
7774 | goto unknown; | |
7775 | ||
7776 | case 'C': | |
7777 | if (name[1] == 'H' && | |
7778 | name[2] == 'E' && | |
7779 | name[3] == 'C' && | |
7780 | name[4] == 'K') | |
7781 | { /* CHECK */ | |
7782 | return KEY_CHECK; | |
7783 | } | |
7784 | ||
7785 | goto unknown; | |
7786 | ||
7787 | case 'a': | |
7788 | switch (name[1]) | |
7789 | { | |
7790 | case 'l': | |
7791 | if (name[2] == 'a' && | |
7792 | name[3] == 'r' && | |
7793 | name[4] == 'm') | |
7794 | { /* alarm */ | |
7795 | return -KEY_alarm; | |
7796 | } | |
7797 | ||
7798 | goto unknown; | |
7799 | ||
7800 | case 't': | |
7801 | if (name[2] == 'a' && | |
7802 | name[3] == 'n' && | |
7803 | name[4] == '2') | |
7804 | { /* atan2 */ | |
7805 | return -KEY_atan2; | |
7806 | } | |
7807 | ||
7808 | goto unknown; | |
7809 | ||
7810 | default: | |
7811 | goto unknown; | |
7812 | } | |
7813 | ||
7814 | case 'b': | |
0d863452 RH |
7815 | switch (name[1]) |
7816 | { | |
7817 | case 'l': | |
7818 | if (name[2] == 'e' && | |
4c3bbe0f MHM |
7819 | name[3] == 's' && |
7820 | name[4] == 's') | |
7821 | { /* bless */ | |
7822 | return -KEY_bless; | |
7823 | } | |
7824 | ||
7825 | goto unknown; | |
7826 | ||
0d863452 RH |
7827 | case 'r': |
7828 | if (name[2] == 'e' && | |
7829 | name[3] == 'a' && | |
7830 | name[4] == 'k') | |
7831 | { /* break */ | |
ef89dcc3 | 7832 | return (FEATURE_IS_ENABLED("switch") ? -KEY_break : 0); |
0d863452 RH |
7833 | } |
7834 | ||
7835 | goto unknown; | |
7836 | ||
7837 | default: | |
7838 | goto unknown; | |
7839 | } | |
7840 | ||
4c3bbe0f MHM |
7841 | case 'c': |
7842 | switch (name[1]) | |
7843 | { | |
7844 | case 'h': | |
7845 | switch (name[2]) | |
7846 | { | |
7847 | case 'd': | |
7848 | if (name[3] == 'i' && | |
7849 | name[4] == 'r') | |
7850 | { /* chdir */ | |
7851 | return -KEY_chdir; | |
7852 | } | |
7853 | ||
7854 | goto unknown; | |
7855 | ||
7856 | case 'm': | |
7857 | if (name[3] == 'o' && | |
7858 | name[4] == 'd') | |
7859 | { /* chmod */ | |
7860 | return -KEY_chmod; | |
7861 | } | |
7862 | ||
7863 | goto unknown; | |
7864 | ||
7865 | case 'o': | |
7866 | switch (name[3]) | |
7867 | { | |
7868 | case 'm': | |
7869 | if (name[4] == 'p') | |
7870 | { /* chomp */ | |
7871 | return -KEY_chomp; | |
7872 | } | |
7873 | ||
7874 | goto unknown; | |
7875 | ||
7876 | case 'w': | |
7877 | if (name[4] == 'n') | |
7878 | { /* chown */ | |
7879 | return -KEY_chown; | |
7880 | } | |
7881 | ||
7882 | goto unknown; | |
7883 | ||
7884 | default: | |
7885 | goto unknown; | |
7886 | } | |
7887 | ||
7888 | default: | |
7889 | goto unknown; | |
7890 | } | |
7891 | ||
7892 | case 'l': | |
7893 | if (name[2] == 'o' && | |
7894 | name[3] == 's' && | |
7895 | name[4] == 'e') | |
7896 | { /* close */ | |
7897 | return -KEY_close; | |
7898 | } | |
7899 | ||
7900 | goto unknown; | |
7901 | ||
7902 | case 'r': | |
7903 | if (name[2] == 'y' && | |
7904 | name[3] == 'p' && | |
7905 | name[4] == 't') | |
7906 | { /* crypt */ | |
7907 | return -KEY_crypt; | |
7908 | } | |
7909 | ||
7910 | goto unknown; | |
7911 | ||
7912 | default: | |
7913 | goto unknown; | |
7914 | } | |
7915 | ||
7916 | case 'e': | |
7917 | if (name[1] == 'l' && | |
7918 | name[2] == 's' && | |
7919 | name[3] == 'i' && | |
7920 | name[4] == 'f') | |
7921 | { /* elsif */ | |
7922 | return KEY_elsif; | |
7923 | } | |
7924 | ||
7925 | goto unknown; | |
7926 | ||
7927 | case 'f': | |
7928 | switch (name[1]) | |
7929 | { | |
7930 | case 'c': | |
7931 | if (name[2] == 'n' && | |
7932 | name[3] == 't' && | |
7933 | name[4] == 'l') | |
7934 | { /* fcntl */ | |
7935 | return -KEY_fcntl; | |
7936 | } | |
7937 | ||
7938 | goto unknown; | |
7939 | ||
7940 | case 'l': | |
7941 | if (name[2] == 'o' && | |
7942 | name[3] == 'c' && | |
7943 | name[4] == 'k') | |
7944 | { /* flock */ | |
7945 | return -KEY_flock; | |
7946 | } | |
7947 | ||
7948 | goto unknown; | |
7949 | ||
7950 | default: | |
7951 | goto unknown; | |
7952 | } | |
7953 | ||
0d863452 RH |
7954 | case 'g': |
7955 | if (name[1] == 'i' && | |
7956 | name[2] == 'v' && | |
7957 | name[3] == 'e' && | |
7958 | name[4] == 'n') | |
7959 | { /* given */ | |
ef89dcc3 | 7960 | return (FEATURE_IS_ENABLED("switch") ? KEY_given : 0); |
0d863452 RH |
7961 | } |
7962 | ||
7963 | goto unknown; | |
7964 | ||
4c3bbe0f MHM |
7965 | case 'i': |
7966 | switch (name[1]) | |
7967 | { | |
7968 | case 'n': | |
7969 | if (name[2] == 'd' && | |
7970 | name[3] == 'e' && | |
7971 | name[4] == 'x') | |
7972 | { /* index */ | |
7973 | return -KEY_index; | |
7974 | } | |
7975 | ||
7976 | goto unknown; | |
7977 | ||
7978 | case 'o': | |
7979 | if (name[2] == 'c' && | |
7980 | name[3] == 't' && | |
7981 | name[4] == 'l') | |
7982 | { /* ioctl */ | |
7983 | return -KEY_ioctl; | |
7984 | } | |
7985 | ||
7986 | goto unknown; | |
7987 | ||
7988 | default: | |
7989 | goto unknown; | |
7990 | } | |
7991 | ||
7992 | case 'l': | |
7993 | switch (name[1]) | |
7994 | { | |
7995 | case 'o': | |
7996 | if (name[2] == 'c' && | |
7997 | name[3] == 'a' && | |
7998 | name[4] == 'l') | |
7999 | { /* local */ | |
8000 | return KEY_local; | |
8001 | } | |
8002 | ||
8003 | goto unknown; | |
8004 | ||
8005 | case 's': | |
8006 | if (name[2] == 't' && | |
8007 | name[3] == 'a' && | |
8008 | name[4] == 't') | |
8009 | { /* lstat */ | |
8010 | return -KEY_lstat; | |
8011 | } | |
8012 | ||
8013 | goto unknown; | |
8014 | ||
8015 | default: | |
8016 | goto unknown; | |
8017 | } | |
8018 | ||
8019 | case 'm': | |
8020 | if (name[1] == 'k' && | |
8021 | name[2] == 'd' && | |
8022 | name[3] == 'i' && | |
8023 | name[4] == 'r') | |
8024 | { /* mkdir */ | |
8025 | return -KEY_mkdir; | |
8026 | } | |
8027 | ||
8028 | goto unknown; | |
8029 | ||
8030 | case 'p': | |
8031 | if (name[1] == 'r' && | |
8032 | name[2] == 'i' && | |
8033 | name[3] == 'n' && | |
8034 | name[4] == 't') | |
8035 | { /* print */ | |
8036 | return KEY_print; | |
8037 | } | |
8038 | ||
8039 | goto unknown; | |
8040 | ||
8041 | case 'r': | |
8042 | switch (name[1]) | |
8043 | { | |
8044 | case 'e': | |
8045 | if (name[2] == 's' && | |
8046 | name[3] == 'e' && | |
8047 | name[4] == 't') | |
8048 | { /* reset */ | |
8049 | return -KEY_reset; | |
8050 | } | |
8051 | ||
8052 | goto unknown; | |
8053 | ||
8054 | case 'm': | |
8055 | if (name[2] == 'd' && | |
8056 | name[3] == 'i' && | |
8057 | name[4] == 'r') | |
8058 | { /* rmdir */ | |
8059 | return -KEY_rmdir; | |
8060 | } | |
8061 | ||
8062 | goto unknown; | |
8063 | ||
8064 | default: | |
8065 | goto unknown; | |
8066 | } | |
8067 | ||
8068 | case 's': | |
8069 | switch (name[1]) | |
8070 | { | |
8071 | case 'e': | |
8072 | if (name[2] == 'm' && | |
8073 | name[3] == 'o' && | |
8074 | name[4] == 'p') | |
8075 | { /* semop */ | |
8076 | return -KEY_semop; | |
8077 | } | |
8078 | ||
8079 | goto unknown; | |
8080 | ||
8081 | case 'h': | |
8082 | if (name[2] == 'i' && | |
8083 | name[3] == 'f' && | |
8084 | name[4] == 't') | |
8085 | { /* shift */ | |
8086 | return -KEY_shift; | |
8087 | } | |
8088 | ||
8089 | goto unknown; | |
8090 | ||
8091 | case 'l': | |
8092 | if (name[2] == 'e' && | |
8093 | name[3] == 'e' && | |
8094 | name[4] == 'p') | |
8095 | { /* sleep */ | |
8096 | return -KEY_sleep; | |
8097 | } | |
8098 | ||
8099 | goto unknown; | |
8100 | ||
8101 | case 'p': | |
8102 | if (name[2] == 'l' && | |
8103 | name[3] == 'i' && | |
8104 | name[4] == 't') | |
8105 | { /* split */ | |
8106 | return KEY_split; | |
8107 | } | |
8108 | ||
8109 | goto unknown; | |
8110 | ||
8111 | case 'r': | |
8112 | if (name[2] == 'a' && | |
8113 | name[3] == 'n' && | |
8114 | name[4] == 'd') | |
8115 | { /* srand */ | |
8116 | return -KEY_srand; | |
8117 | } | |
8118 | ||
8119 | goto unknown; | |
8120 | ||
8121 | case 't': | |
8122 | if (name[2] == 'u' && | |
8123 | name[3] == 'd' && | |
8124 | name[4] == 'y') | |
8125 | { /* study */ | |
8126 | return KEY_study; | |
8127 | } | |
8128 | ||
8129 | goto unknown; | |
8130 | ||
8131 | default: | |
8132 | goto unknown; | |
8133 | } | |
8134 | ||
8135 | case 't': | |
8136 | if (name[1] == 'i' && | |
8137 | name[2] == 'm' && | |
8138 | name[3] == 'e' && | |
8139 | name[4] == 's') | |
8140 | { /* times */ | |
8141 | return -KEY_times; | |
8142 | } | |
8143 | ||
8144 | goto unknown; | |
8145 | ||
8146 | case 'u': | |
8147 | switch (name[1]) | |
8148 | { | |
8149 | case 'm': | |
8150 | if (name[2] == 'a' && | |
8151 | name[3] == 's' && | |
8152 | name[4] == 'k') | |
8153 | { /* umask */ | |
8154 | return -KEY_umask; | |
8155 | } | |
8156 | ||
8157 | goto unknown; | |
8158 | ||
8159 | case 'n': | |
8160 | switch (name[2]) | |
8161 | { | |
8162 | case 'd': | |
8163 | if (name[3] == 'e' && | |
8164 | name[4] == 'f') | |
8165 | { /* undef */ | |
8166 | return KEY_undef; | |
8167 | } | |
8168 | ||
8169 | goto unknown; | |
8170 | ||
8171 | case 't': | |
8172 | if (name[3] == 'i') | |
8173 | { | |
8174 | switch (name[4]) | |
8175 | { | |
8176 | case 'e': | |
8177 | { /* untie */ | |
8178 | return KEY_untie; | |
8179 | } | |
8180 | ||
4c3bbe0f MHM |
8181 | case 'l': |
8182 | { /* until */ | |
8183 | return KEY_until; | |
8184 | } | |
8185 | ||
4c3bbe0f MHM |
8186 | default: |
8187 | goto unknown; | |
8188 | } | |
8189 | } | |
8190 | ||
8191 | goto unknown; | |
8192 | ||
8193 | default: | |
8194 | goto unknown; | |
8195 | } | |
8196 | ||
8197 | case 't': | |
8198 | if (name[2] == 'i' && | |
8199 | name[3] == 'm' && | |
8200 | name[4] == 'e') | |
8201 | { /* utime */ | |
8202 | return -KEY_utime; | |
8203 | } | |
8204 | ||
8205 | goto unknown; | |
8206 | ||
8207 | default: | |
8208 | goto unknown; | |
8209 | } | |
8210 | ||
8211 | case 'w': | |
8212 | switch (name[1]) | |
8213 | { | |
8214 | case 'h': | |
8215 | if (name[2] == 'i' && | |
8216 | name[3] == 'l' && | |
8217 | name[4] == 'e') | |
8218 | { /* while */ | |
8219 | return KEY_while; | |
8220 | } | |
8221 | ||
8222 | goto unknown; | |
8223 | ||
8224 | case 'r': | |
8225 | if (name[2] == 'i' && | |
8226 | name[3] == 't' && | |
8227 | name[4] == 'e') | |
8228 | { /* write */ | |
8229 | return -KEY_write; | |
8230 | } | |
8231 | ||
8232 | goto unknown; | |
8233 | ||
8234 | default: | |
8235 | goto unknown; | |
8236 | } | |
8237 | ||
8238 | default: | |
8239 | goto unknown; | |
e2e1dd5a | 8240 | } |
4c3bbe0f MHM |
8241 | |
8242 | case 6: /* 33 tokens of length 6 */ | |
8243 | switch (name[0]) | |
8244 | { | |
8245 | case 'a': | |
8246 | if (name[1] == 'c' && | |
8247 | name[2] == 'c' && | |
8248 | name[3] == 'e' && | |
8249 | name[4] == 'p' && | |
8250 | name[5] == 't') | |
8251 | { /* accept */ | |
8252 | return -KEY_accept; | |
8253 | } | |
8254 | ||
8255 | goto unknown; | |
8256 | ||
8257 | case 'c': | |
8258 | switch (name[1]) | |
8259 | { | |
8260 | case 'a': | |
8261 | if (name[2] == 'l' && | |
8262 | name[3] == 'l' && | |
8263 | name[4] == 'e' && | |
8264 | name[5] == 'r') | |
8265 | { /* caller */ | |
8266 | return -KEY_caller; | |
8267 | } | |
8268 | ||
8269 | goto unknown; | |
8270 | ||
8271 | case 'h': | |
8272 | if (name[2] == 'r' && | |
8273 | name[3] == 'o' && | |
8274 | name[4] == 'o' && | |
8275 | name[5] == 't') | |
8276 | { /* chroot */ | |
8277 | return -KEY_chroot; | |
8278 | } | |
8279 | ||
8280 | goto unknown; | |
8281 | ||
8282 | default: | |
8283 | goto unknown; | |
8284 | } | |
8285 | ||
8286 | case 'd': | |
8287 | if (name[1] == 'e' && | |
8288 | name[2] == 'l' && | |
8289 | name[3] == 'e' && | |
8290 | name[4] == 't' && | |
8291 | name[5] == 'e') | |
8292 | { /* delete */ | |
8293 | return KEY_delete; | |
8294 | } | |
8295 | ||
8296 | goto unknown; | |
8297 | ||
8298 | case 'e': | |
8299 | switch (name[1]) | |
8300 | { | |
8301 | case 'l': | |
8302 | if (name[2] == 's' && | |
8303 | name[3] == 'e' && | |
8304 | name[4] == 'i' && | |
8305 | name[5] == 'f') | |
8306 | { /* elseif */ | |
8307 | if(ckWARN_d(WARN_SYNTAX)) | |
8308 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); | |
8309 | } | |
8310 | ||
8311 | goto unknown; | |
8312 | ||
8313 | case 'x': | |
8314 | if (name[2] == 'i' && | |
8315 | name[3] == 's' && | |
8316 | name[4] == 't' && | |
8317 | name[5] == 's') | |
8318 | { /* exists */ | |
8319 | return KEY_exists; | |
8320 | } | |
8321 | ||
8322 | goto unknown; | |
8323 | ||
8324 | default: | |
8325 | goto unknown; | |
8326 | } | |
8327 | ||
8328 | case 'f': | |
8329 | switch (name[1]) | |
8330 | { | |
8331 | case 'i': | |
8332 | if (name[2] == 'l' && | |
8333 | name[3] == 'e' && | |
8334 | name[4] == 'n' && | |
8335 | name[5] == 'o') | |
8336 | { /* fileno */ | |
8337 | return -KEY_fileno; | |
8338 | } | |
8339 | ||
8340 | goto unknown; | |
8341 | ||
8342 | case 'o': | |
8343 | if (name[2] == 'r' && | |
8344 | name[3] == 'm' && | |
8345 | name[4] == 'a' && | |
8346 | name[5] == 't') | |
8347 | { /* format */ | |
8348 | return KEY_format; | |
8349 | } | |
8350 | ||
8351 | goto unknown; | |
8352 | ||
8353 | default: | |
8354 | goto unknown; | |
8355 | } | |
8356 | ||
8357 | case 'g': | |
8358 | if (name[1] == 'm' && | |
8359 | name[2] == 't' && | |
8360 | name[3] == 'i' && | |
8361 | name[4] == 'm' && | |
8362 | name[5] == 'e') | |
8363 | { /* gmtime */ | |
8364 | return -KEY_gmtime; | |
8365 | } | |
8366 | ||
8367 | goto unknown; | |
8368 | ||
8369 | case 'l': | |
8370 | switch (name[1]) | |
8371 | { | |
8372 | case 'e': | |
8373 | if (name[2] == 'n' && | |
8374 | name[3] == 'g' && | |
8375 | name[4] == 't' && | |
8376 | name[5] == 'h') | |
8377 | { /* length */ | |
8378 | return -KEY_length; | |
8379 | } | |
8380 | ||
8381 | goto unknown; | |
8382 | ||
8383 | case 'i': | |
8384 | if (name[2] == 's' && | |
8385 | name[3] == 't' && | |
8386 | name[4] == 'e' && | |
8387 | name[5] == 'n') | |
8388 | { /* listen */ | |
8389 | return -KEY_listen; | |
8390 | } | |
8391 | ||
8392 | goto unknown; | |
8393 | ||
8394 | default: | |
8395 | goto unknown; | |
8396 | } | |
8397 | ||
8398 | case 'm': | |
8399 | if (name[1] == 's' && | |
8400 | name[2] == 'g') | |
8401 | { | |
8402 | switch (name[3]) | |
8403 | { | |
8404 | case 'c': | |
8405 | if (name[4] == 't' && | |
8406 | name[5] == 'l') | |
8407 | { /* msgctl */ | |
8408 | return -KEY_msgctl; | |
8409 | } | |
8410 | ||
8411 | goto unknown; | |
8412 | ||
8413 | case 'g': | |
8414 | if (name[4] == 'e' && | |
8415 | name[5] == 't') | |
8416 | { /* msgget */ | |
8417 | return -KEY_msgget; | |
8418 | } | |
8419 | ||
8420 | goto unknown; | |
8421 | ||
8422 | case 'r': | |
8423 | if (name[4] == 'c' && | |
8424 | name[5] == 'v') | |
8425 | { /* msgrcv */ | |
8426 | return -KEY_msgrcv; | |
8427 | } | |
8428 | ||
8429 | goto unknown; | |
8430 | ||
8431 | case 's': | |
8432 | if (name[4] == 'n' && | |
8433 | name[5] == 'd') | |
8434 | { /* msgsnd */ | |
8435 | return -KEY_msgsnd; | |
8436 | } | |
8437 | ||
8438 | goto unknown; | |
8439 | ||
8440 | default: | |
8441 | goto unknown; | |
8442 | } | |
8443 | } | |
8444 | ||
8445 | goto unknown; | |
8446 | ||
8447 | case 'p': | |
8448 | if (name[1] == 'r' && | |
8449 | name[2] == 'i' && | |
8450 | name[3] == 'n' && | |
8451 | name[4] == 't' && | |
8452 | name[5] == 'f') | |
8453 | { /* printf */ | |
8454 | return KEY_printf; | |
8455 | } | |
8456 | ||
8457 | goto unknown; | |
8458 | ||
8459 | case 'r': | |
8460 | switch (name[1]) | |
8461 | { | |
8462 | case 'e': | |
8463 | switch (name[2]) | |
8464 | { | |
8465 | case 'n': | |
8466 | if (name[3] == 'a' && | |
8467 | name[4] == 'm' && | |
8468 | name[5] == 'e') | |
8469 | { /* rename */ | |
8470 | return -KEY_rename; | |
8471 | } | |
8472 | ||
8473 | goto unknown; | |
8474 | ||
8475 | case 't': | |
8476 | if (name[3] == 'u' && | |
8477 | name[4] == 'r' && | |
8478 | name[5] == 'n') | |
8479 | { /* return */ | |
8480 | return KEY_return; | |
8481 | } | |
8482 | ||
8483 | goto unknown; | |
8484 | ||
8485 | default: | |
8486 | goto unknown; | |
8487 | } | |
8488 | ||
8489 | case 'i': | |
8490 | if (name[2] == 'n' && | |
8491 | name[3] == 'd' && | |
8492 | name[4] == 'e' && | |
8493 | name[5] == 'x') | |
8494 | { /* rindex */ | |
8495 | return -KEY_rindex; | |
8496 | } | |
8497 | ||
8498 | goto unknown; | |
8499 | ||
8500 | default: | |
8501 | goto unknown; | |
8502 | } | |
8503 | ||
8504 | case 's': | |
8505 | switch (name[1]) | |
8506 | { | |
8507 | case 'c': | |
8508 | if (name[2] == 'a' && | |
8509 | name[3] == 'l' && | |
8510 | name[4] == 'a' && | |
8511 | name[5] == 'r') | |
8512 | { /* scalar */ | |
8513 | return KEY_scalar; | |
8514 | } | |
8515 | ||
8516 | goto unknown; | |
8517 | ||
8518 | case 'e': | |
8519 | switch (name[2]) | |
8520 | { | |
8521 | case 'l': | |
8522 | if (name[3] == 'e' && | |
8523 | name[4] == 'c' && | |
8524 | name[5] == 't') | |
8525 | { /* select */ | |
8526 | return -KEY_select; | |
8527 | } | |
8528 | ||
8529 | goto unknown; | |
8530 | ||
8531 | case 'm': | |
8532 | switch (name[3]) | |
8533 | { | |
8534 | case 'c': | |
8535 | if (name[4] == 't' && | |
8536 | name[5] == 'l') | |
8537 | { /* semctl */ | |
8538 | return -KEY_semctl; | |
8539 | } | |
8540 | ||
8541 | goto unknown; | |
8542 | ||
8543 | case 'g': | |
8544 | if (name[4] == 'e' && | |
8545 | name[5] == 't') | |
8546 | { /* semget */ | |
8547 | return -KEY_semget; | |
8548 | } | |
8549 | ||
8550 | goto unknown; | |
8551 | ||
8552 | default: | |
8553 | goto unknown; | |
8554 | } | |
8555 | ||
8556 | default: | |
8557 | goto unknown; | |
8558 | } | |
8559 | ||
8560 | case 'h': | |
8561 | if (name[2] == 'm') | |
8562 | { | |
8563 | switch (name[3]) | |
8564 | { | |
8565 | case 'c': | |
8566 | if (name[4] == 't' && | |
8567 | name[5] == 'l') | |
8568 | { /* shmctl */ | |
8569 | return -KEY_shmctl; | |
8570 | } | |
8571 | ||
8572 | goto unknown; | |
8573 | ||
8574 | case 'g': | |
8575 | if (name[4] == 'e' && | |
8576 | name[5] == 't') | |
8577 | { /* shmget */ | |
8578 | return -KEY_shmget; | |
8579 | } | |
8580 | ||
8581 | goto unknown; | |
8582 | ||
8583 | default: | |
8584 | goto unknown; | |
8585 | } | |
8586 | } | |
8587 | ||
8588 | goto unknown; | |
8589 | ||
8590 | case 'o': | |
8591 | if (name[2] == 'c' && | |
8592 | name[3] == 'k' && | |
8593 | name[4] == 'e' && | |
8594 | name[5] == 't') | |
8595 | { /* socket */ | |
8596 | return -KEY_socket; | |
8597 | } | |
8598 | ||
8599 | goto unknown; | |
8600 | ||
8601 | case 'p': | |
8602 | if (name[2] == 'l' && | |
8603 | name[3] == 'i' && | |
8604 | name[4] == 'c' && | |
8605 | name[5] == 'e') | |
8606 | { /* splice */ | |
8607 | return -KEY_splice; | |
8608 | } | |
8609 | ||
8610 | goto unknown; | |
8611 | ||
8612 | case 'u': | |
8613 | if (name[2] == 'b' && | |
8614 | name[3] == 's' && | |
8615 | name[4] == 't' && | |
8616 | name[5] == 'r') | |
8617 | { /* substr */ | |
8618 | return -KEY_substr; | |
8619 | } | |
8620 | ||
8621 | goto unknown; | |
8622 | ||
8623 | case 'y': | |
8624 | if (name[2] == 's' && | |
8625 | name[3] == 't' && | |
8626 | name[4] == 'e' && | |
8627 | name[5] == 'm') | |
8628 | { /* system */ | |
8629 | return -KEY_system; | |
8630 | } | |
8631 | ||
8632 | goto unknown; | |
8633 | ||
8634 | default: | |
8635 | goto unknown; | |
8636 | } | |
8637 | ||
8638 | case 'u': | |
8639 | if (name[1] == 'n') | |
8640 | { | |
8641 | switch (name[2]) | |
8642 | { | |
8643 | case 'l': | |
8644 | switch (name[3]) | |
8645 | { | |
8646 | case 'e': | |
8647 | if (name[4] == 's' && | |
8648 | name[5] == 's') | |
8649 | { /* unless */ | |
8650 | return KEY_unless; | |
8651 | } | |
8652 | ||
8653 | goto unknown; | |
8654 | ||
8655 | case 'i': | |
8656 | if (name[4] == 'n' && | |
8657 | name[5] == 'k') | |
8658 | { /* unlink */ | |
8659 | return -KEY_unlink; | |
8660 | } | |
8661 | ||
8662 | goto unknown; | |
8663 | ||
8664 | default: | |
8665 | goto unknown; | |
8666 | } | |
8667 | ||
8668 | case 'p': | |
8669 | if (name[3] == 'a' && | |
8670 | name[4] == 'c' && | |
8671 | name[5] == 'k') | |
8672 | { /* unpack */ | |
8673 | return -KEY_unpack; | |
8674 | } | |
8675 | ||
8676 | goto unknown; | |
8677 | ||
8678 | default: | |
8679 | goto unknown; | |
8680 | } | |
8681 | } | |
8682 | ||
8683 | goto unknown; | |
8684 | ||
8685 | case 'v': | |
8686 | if (name[1] == 'a' && | |
8687 | name[2] == 'l' && | |
8688 | name[3] == 'u' && | |
8689 | name[4] == 'e' && | |
8690 | name[5] == 's') | |
8691 | { /* values */ | |
8692 | return -KEY_values; | |
8693 | } | |
8694 | ||
8695 | goto unknown; | |
8696 | ||
8697 | default: | |
8698 | goto unknown; | |
e2e1dd5a | 8699 | } |
4c3bbe0f | 8700 | |
0d863452 | 8701 | case 7: /* 29 tokens of length 7 */ |
4c3bbe0f MHM |
8702 | switch (name[0]) |
8703 | { | |
8704 | case 'D': | |
8705 | if (name[1] == 'E' && | |
8706 | name[2] == 'S' && | |
8707 | name[3] == 'T' && | |
8708 | name[4] == 'R' && | |
8709 | name[5] == 'O' && | |
8710 | name[6] == 'Y') | |
8711 | { /* DESTROY */ | |
8712 | return KEY_DESTROY; | |
8713 | } | |
8714 | ||
8715 | goto unknown; | |
8716 | ||
8717 | case '_': | |
8718 | if (name[1] == '_' && | |
8719 | name[2] == 'E' && | |
8720 | name[3] == 'N' && | |
8721 | name[4] == 'D' && | |
8722 | name[5] == '_' && | |
8723 | name[6] == '_') | |
8724 | { /* __END__ */ | |
8725 | return KEY___END__; | |
8726 | } | |
8727 | ||
8728 | goto unknown; | |
8729 | ||
8730 | case 'b': | |
8731 | if (name[1] == 'i' && | |
8732 | name[2] == 'n' && | |
8733 | name[3] == 'm' && | |
8734 | name[4] == 'o' && | |
8735 | name[5] == 'd' && | |
8736 | name[6] == 'e') | |
8737 | { /* binmode */ | |
8738 | return -KEY_binmode; | |
8739 | } | |
8740 | ||
8741 | goto unknown; | |
8742 | ||
8743 | case 'c': | |
8744 | if (name[1] == 'o' && | |
8745 | name[2] == 'n' && | |
8746 | name[3] == 'n' && | |
8747 | name[4] == 'e' && | |
8748 | name[5] == 'c' && | |
8749 | name[6] == 't') | |
8750 | { /* connect */ | |
8751 | return -KEY_connect; | |
8752 | } | |
8753 | ||
8754 | goto unknown; | |
8755 | ||
8756 | case 'd': | |
8757 | switch (name[1]) | |
8758 | { | |
8759 | case 'b': | |
8760 | if (name[2] == 'm' && | |
8761 | name[3] == 'o' && | |
8762 | name[4] == 'p' && | |
8763 | name[5] == 'e' && | |
8764 | name[6] == 'n') | |
8765 | { /* dbmopen */ | |
8766 | return -KEY_dbmopen; | |
8767 | } | |
8768 | ||
8769 | goto unknown; | |
8770 | ||
8771 | case 'e': | |
0d863452 RH |
8772 | if (name[2] == 'f') |
8773 | { | |
8774 | switch (name[3]) | |
8775 | { | |
8776 | case 'a': | |
8777 | if (name[4] == 'u' && | |
8778 | name[5] == 'l' && | |
8779 | name[6] == 't') | |
8780 | { /* default */ | |
ef89dcc3 | 8781 | return (FEATURE_IS_ENABLED("switch") ? KEY_default : 0); |
0d863452 RH |
8782 | } |
8783 | ||
8784 | goto unknown; | |
8785 | ||
8786 | case 'i': | |
8787 | if (name[4] == 'n' && | |
4c3bbe0f MHM |
8788 | name[5] == 'e' && |
8789 | name[6] == 'd') | |
8790 | { /* defined */ | |
8791 | return KEY_defined; | |
8792 | } | |
8793 | ||
8794 | goto unknown; | |
8795 | ||
8796 | default: | |
8797 | goto unknown; | |
8798 | } | |
0d863452 RH |
8799 | } |
8800 | ||
8801 | goto unknown; | |
8802 | ||
8803 | default: | |
8804 | goto unknown; | |
8805 | } | |
4c3bbe0f MHM |
8806 | |
8807 | case 'f': | |
8808 | if (name[1] == 'o' && | |
8809 | name[2] == 'r' && | |
8810 | name[3] == 'e' && | |
8811 | name[4] == 'a' && | |
8812 | name[5] == 'c' && | |
8813 | name[6] == 'h') | |
8814 | { /* foreach */ | |
8815 | return KEY_foreach; | |
8816 | } | |
8817 | ||
8818 | goto unknown; | |
8819 | ||
8820 | case 'g': | |
8821 | if (name[1] == 'e' && | |
8822 | name[2] == 't' && | |
8823 | name[3] == 'p') | |
8824 | { | |
8825 | switch (name[4]) | |
8826 | { | |
8827 | case 'g': | |
8828 | if (name[5] == 'r' && | |
8829 | name[6] == 'p') | |
8830 | { /* getpgrp */ | |
8831 | return -KEY_getpgrp; | |
8832 | } | |
8833 | ||
8834 | goto unknown; | |
8835 | ||
8836 | case 'p': | |
8837 | if (name[5] == 'i' && | |
8838 | name[6] == 'd') | |
8839 | { /* getppid */ | |
8840 | return -KEY_getppid; | |
8841 | } | |
8842 | ||
8843 | goto unknown; | |
8844 | ||
8845 | default: | |
8846 | goto unknown; | |
8847 | } | |
8848 | } | |
8849 | ||
8850 | goto unknown; | |
8851 | ||
8852 | case 'l': | |
8853 | if (name[1] == 'c' && | |
8854 | name[2] == 'f' && | |
8855 | name[3] == 'i' && | |
8856 | name[4] == 'r' && | |
8857 | name[5] == 's' && | |
8858 | name[6] == 't') | |
8859 | { /* lcfirst */ | |
8860 | return -KEY_lcfirst; | |
8861 | } | |
8862 | ||
8863 | goto unknown; | |
8864 | ||
8865 | case 'o': | |
8866 | if (name[1] == 'p' && | |
8867 | name[2] == 'e' && | |
8868 | name[3] == 'n' && | |
8869 | name[4] == 'd' && | |
8870 | name[5] == 'i' && | |
8871 | name[6] == 'r') | |
8872 | { /* opendir */ | |
8873 | return -KEY_opendir; | |
8874 | } | |
8875 | ||
8876 | goto unknown; | |
8877 | ||
8878 | case 'p': | |
8879 | if (name[1] == 'a' && | |
8880 | name[2] == 'c' && | |
8881 | name[3] == 'k' && | |
8882 | name[4] == 'a' && | |
8883 | name[5] == 'g' && | |
8884 | name[6] == 'e') | |
8885 | { /* package */ | |
8886 | return KEY_package; | |
8887 | } | |
8888 | ||
8889 | goto unknown; | |
8890 | ||
8891 | case 'r': | |
8892 | if (name[1] == 'e') | |
8893 | { | |
8894 | switch (name[2]) | |
8895 | { | |
8896 | case 'a': | |
8897 | if (name[3] == 'd' && | |
8898 | name[4] == 'd' && | |
8899 | name[5] == 'i' && | |
8900 | name[6] == 'r') | |
8901 | { /* readdir */ | |
8902 | return -KEY_readdir; | |
8903 | } | |
8904 | ||
8905 | goto unknown; | |
8906 | ||
8907 | case 'q': | |
8908 | if (name[3] == 'u' && | |
8909 | name[4] == 'i' && | |
8910 | name[5] == 'r' && | |
8911 | name[6] == 'e') | |
8912 | { /* require */ | |
8913 | return KEY_require; | |
8914 | } | |
8915 | ||
8916 | goto unknown; | |
8917 | ||
8918 | case 'v': | |
8919 | if (name[3] == 'e' && | |
8920 | name[4] == 'r' && | |
8921 | name[5] == 's' && | |
8922 | name[6] == 'e') | |
8923 | { /* reverse */ | |
8924 | return -KEY_reverse; | |
8925 | } | |
8926 | ||
8927 | goto unknown; | |
8928 | ||
8929 | default: | |
8930 | goto unknown; | |
8931 | } | |
8932 | } | |
8933 | ||
8934 | goto unknown; | |
8935 | ||
8936 | case 's': | |
8937 | switch (name[1]) | |
8938 | { | |
8939 | case 'e': | |
8940 | switch (name[2]) | |
8941 | { | |
8942 | case 'e': | |
8943 | if (name[3] == 'k' && | |
8944 | name[4] == 'd' && | |
8945 | name[5] == 'i' && | |
8946 | name[6] == 'r') | |
8947 | { /* seekdir */ | |
8948 | return -KEY_seekdir; | |
8949 | } | |
8950 | ||
8951 | goto unknown; | |
8952 | ||
8953 | case 't': | |
8954 | if (name[3] == 'p' && | |
8955 | name[4] == 'g' && | |
8956 | name[5] == 'r' && | |
8957 | name[6] == 'p') | |
8958 | { /* setpgrp */ | |
8959 | return -KEY_setpgrp; | |
8960 | } | |
8961 | ||
8962 | goto unknown; | |
8963 | ||
8964 | default: | |
8965 | goto unknown; | |
8966 | } | |
8967 | ||
8968 | case 'h': | |
8969 | if (name[2] == 'm' && | |
8970 | name[3] == 'r' && | |
8971 | name[4] == 'e' && | |
8972 | name[5] == 'a' && | |
8973 | name[6] == 'd') | |
8974 | { /* shmread */ | |
8975 | return -KEY_shmread; | |
8976 | } | |
8977 | ||
8978 | goto unknown; | |
8979 | ||
8980 | case 'p': | |
8981 | if (name[2] == 'r' && | |
8982 | name[3] == 'i' && | |
8983 | name[4] == 'n' && | |
8984 | name[5] == 't' && | |
8985 | name[6] == 'f') | |
8986 | { /* sprintf */ | |
8987 | return -KEY_sprintf; | |
8988 | } | |
8989 | ||
8990 | goto unknown; | |
8991 | ||
8992 | case 'y': | |
8993 | switch (name[2]) | |
8994 | { | |
8995 | case 'm': | |
8996 | if (name[3] == 'l' && | |
8997 | name[4] == 'i' && | |
8998 | name[5] == 'n' && | |
8999 | name[6] == 'k') | |
9000 | { /* symlink */ | |
9001 | return -KEY_symlink; | |
9002 | } | |
9003 | ||
9004 | goto unknown; | |
9005 | ||
9006 | case 's': | |
9007 | switch (name[3]) | |
9008 | { | |
9009 | case 'c': | |
9010 | if (name[4] == 'a' && | |
9011 | name[5] == 'l' && | |
9012 | name[6] == 'l') | |
9013 | { /* syscall */ | |
9014 | return -KEY_syscall; | |
9015 | } | |
9016 | ||
9017 | goto unknown; | |
9018 | ||
9019 | case 'o': | |
9020 | if (name[4] == 'p' && | |
9021 | name[5] == 'e' && | |
9022 | name[6] == 'n') | |
9023 | { /* sysopen */ | |
9024 | return -KEY_sysopen; | |
9025 | } | |
9026 | ||
9027 | goto unknown; | |
9028 | ||
9029 | case 'r': | |
9030 | if (name[4] == 'e' && | |
9031 | name[5] == 'a' && | |
9032 | name[6] == 'd') | |
9033 | { /* sysread */ | |
9034 | return -KEY_sysread; | |
9035 | } | |
9036 | ||
9037 | goto unknown; | |
9038 | ||
9039 | case 's': | |
9040 | if (name[4] == 'e' && | |
9041 | name[5] == 'e' && | |
9042 | name[6] == 'k') | |
9043 | { /* sysseek */ | |
9044 | return -KEY_sysseek; | |
9045 | } | |
9046 | ||
9047 | goto unknown; | |
9048 | ||
9049 | default: | |
9050 | goto unknown; | |
9051 | } | |
9052 | ||
9053 | default: | |
9054 | goto unknown; | |
9055 | } | |
9056 | ||
9057 | default: | |
9058 | goto unknown; | |
9059 | } | |
9060 | ||
9061 | case 't': | |
9062 | if (name[1] == 'e' && | |
9063 | name[2] == 'l' && | |
9064 | name[3] == 'l' && | |
9065 | name[4] == 'd' && | |
9066 | name[5] == 'i' && | |
9067 | name[6] == 'r') | |
9068 | { /* telldir */ | |
9069 | return -KEY_telldir; | |
9070 | } | |
9071 | ||
9072 | goto unknown; | |
9073 | ||
9074 | case 'u': | |
9075 | switch (name[1]) | |
9076 | { | |
9077 | case 'c': | |
9078 | if (name[2] == 'f' && | |
9079 | name[3] == 'i' && | |
9080 | name[4] == 'r' && | |
9081 | name[5] == 's' && | |
9082 | name[6] == 't') | |
9083 | { /* ucfirst */ | |
9084 | return -KEY_ucfirst; | |
9085 | } | |
9086 | ||
9087 | goto unknown; | |
9088 | ||
9089 | case 'n': | |
9090 | if (name[2] == 's' && | |
9091 | name[3] == 'h' && | |
9092 | name[4] == 'i' && | |
9093 | name[5] == 'f' && | |
9094 | name[6] == 't') | |
9095 | { /* unshift */ | |
9096 | return -KEY_unshift; | |
9097 | } | |
9098 | ||
9099 | goto unknown; | |
9100 | ||
9101 | default: | |
9102 | goto unknown; | |
9103 | } | |
9104 | ||
9105 | case 'w': | |
9106 | if (name[1] == 'a' && | |
9107 | name[2] == 'i' && | |
9108 | name[3] == 't' && | |
9109 | name[4] == 'p' && | |
9110 | name[5] == 'i' && | |
9111 | name[6] == 'd') | |
9112 | { /* waitpid */ | |
9113 | return -KEY_waitpid; | |
9114 | } | |
9115 | ||
9116 | goto unknown; | |
9117 | ||
9118 | default: | |
9119 | goto unknown; | |
9120 | } | |
9121 | ||
9122 | case 8: /* 26 tokens of length 8 */ | |
9123 | switch (name[0]) | |
9124 | { | |
9125 | case 'A': | |
9126 | if (name[1] == 'U' && | |
9127 | name[2] == 'T' && | |
9128 | name[3] == 'O' && | |
9129 | name[4] == 'L' && | |
9130 | name[5] == 'O' && | |
9131 | name[6] == 'A' && | |
9132 | name[7] == 'D') | |
9133 | { /* AUTOLOAD */ | |
9134 | return KEY_AUTOLOAD; | |
9135 | } | |
9136 | ||
9137 | goto unknown; | |
9138 | ||
9139 | case '_': | |
9140 | if (name[1] == '_') | |
9141 | { | |
9142 | switch (name[2]) | |
9143 | { | |
9144 | case 'D': | |
9145 | if (name[3] == 'A' && | |
9146 | name[4] == 'T' && | |
9147 | name[5] == 'A' && | |
9148 | name[6] == '_' && | |
9149 | name[7] == '_') | |
9150 | { /* __DATA__ */ | |
9151 | return KEY___DATA__; | |
9152 | } | |
9153 | ||
9154 | goto unknown; | |
9155 | ||
9156 | case 'F': | |
9157 | if (name[3] == 'I' && | |
9158 | name[4] == 'L' && | |
9159 | name[5] == 'E' && | |
9160 | name[6] == '_' && | |
9161 | name[7] == '_') | |
9162 | { /* __FILE__ */ | |
9163 | return -KEY___FILE__; | |
9164 | } | |
9165 | ||
9166 | goto unknown; | |
9167 | ||
9168 | case 'L': | |
9169 | if (name[3] == 'I' && | |
9170 | name[4] == 'N' && | |
9171 | name[5] == 'E' && | |
9172 | name[6] == '_' && | |
9173 | name[7] == '_') | |
9174 | { /* __LINE__ */ | |
9175 | return -KEY___LINE__; | |
9176 | } | |
9177 | ||
9178 | goto unknown; | |
9179 | ||
9180 | default: | |
9181 | goto unknown; | |
9182 | } | |
9183 | } | |
9184 | ||
9185 | goto unknown; | |
9186 | ||
9187 | case 'c': | |
9188 | switch (name[1]) | |
9189 | { | |
9190 | case 'l': | |
9191 | if (name[2] == 'o' && | |
9192 | name[3] == 's' && | |
9193 | name[4] == 'e' && | |
9194 | name[5] == 'd' && | |
9195 | name[6] == 'i' && | |
9196 | name[7] == 'r') | |
9197 | { /* closedir */ | |
9198 | return -KEY_closedir; | |
9199 | } | |
9200 | ||
9201 | goto unknown; | |
9202 | ||
9203 | case 'o': | |
9204 | if (name[2] == 'n' && | |
9205 | name[3] == 't' && | |
9206 | name[4] == 'i' && | |
9207 | name[5] == 'n' && | |
9208 | name[6] == 'u' && | |
9209 | name[7] == 'e') | |
9210 | { /* continue */ | |
9211 | return -KEY_continue; | |
9212 | } | |
9213 | ||
9214 | goto unknown; | |
9215 | ||
9216 | default: | |
9217 | goto unknown; | |
9218 | } | |
9219 | ||
9220 | case 'd': | |
9221 | if (name[1] == 'b' && | |
9222 | name[2] == 'm' && | |
9223 | name[3] == 'c' && | |
9224 | name[4] == 'l' && | |
9225 | name[5] == 'o' && | |
9226 | name[6] == 's' && | |
9227 | name[7] == 'e') | |
9228 | { /* dbmclose */ | |
9229 | return -KEY_dbmclose; | |
9230 | } | |
9231 | ||
9232 | goto unknown; | |
9233 | ||
9234 | case 'e': | |
9235 | if (name[1] == 'n' && | |
9236 | name[2] == 'd') | |
9237 | { | |
9238 | switch (name[3]) | |
9239 | { | |
9240 | case 'g': | |
9241 | if (name[4] == 'r' && | |
9242 | name[5] == 'e' && | |
9243 | name[6] == 'n' && | |
9244 | name[7] == 't') | |
9245 | { /* endgrent */ | |
9246 | return -KEY_endgrent; | |
9247 | } | |
9248 | ||
9249 | goto unknown; | |
9250 | ||
9251 | case 'p': | |
9252 | if (name[4] == 'w' && | |
9253 | name[5] == 'e' && | |
9254 | name[6] == 'n' && | |
9255 | name[7] == 't') | |
9256 | { /* endpwent */ | |
9257 | return -KEY_endpwent; | |
9258 | } | |
9259 | ||
9260 | goto unknown; | |
9261 | ||
9262 | default: | |
9263 | goto unknown; | |
9264 | } | |
9265 | } | |
9266 | ||
9267 | goto unknown; | |
9268 | ||
9269 | case 'f': | |
9270 | if (name[1] == 'o' && | |
9271 | name[2] == 'r' && | |
9272 | name[3] == 'm' && | |
9273 | name[4] == 'l' && | |
9274 | name[5] == 'i' && | |
9275 | name[6] == 'n' && | |
9276 | name[7] == 'e') | |
9277 | { /* formline */ | |
9278 | return -KEY_formline; | |
9279 | } | |
9280 | ||
9281 | goto unknown; | |
9282 | ||
9283 | case 'g': | |
9284 | if (name[1] == 'e' && | |
9285 | name[2] == 't') | |
9286 | { | |
9287 | switch (name[3]) | |
9288 | { | |
9289 | case 'g': | |
9290 | if (name[4] == 'r') | |
9291 | { | |
9292 | switch (name[5]) | |
9293 | { | |
9294 | case 'e': | |
9295 | if (name[6] == 'n' && | |
9296 | name[7] == 't') | |
9297 | { /* getgrent */ | |
9298 | return -KEY_getgrent; | |
9299 | } | |
9300 | ||
9301 | goto unknown; | |
9302 | ||
9303 | case 'g': | |
9304 | if (name[6] == 'i' && | |
9305 | name[7] == 'd') | |
9306 | { /* getgrgid */ | |
9307 | return -KEY_getgrgid; | |
9308 | } | |
9309 | ||
9310 | goto unknown; | |
9311 | ||
9312 | case 'n': | |
9313 | if (name[6] == 'a' && | |
9314 | name[7] == 'm') | |
9315 | { /* getgrnam */ | |
9316 | return -KEY_getgrnam; | |
9317 | } | |
9318 | ||
9319 | goto unknown; | |
9320 | ||
9321 | default: | |
9322 | goto unknown; | |
9323 | } | |
9324 | } | |
9325 | ||
9326 | goto unknown; | |
9327 | ||
9328 | case 'l': | |
9329 | if (name[4] == 'o' && | |
9330 | name[5] == 'g' && | |
9331 | name[6] == 'i' && | |
9332 | name[7] == 'n') | |
9333 | { /* getlogin */ | |
9334 | return -KEY_getlogin; | |
9335 | } | |
9336 | ||
9337 | goto unknown; | |
9338 | ||
9339 | case 'p': | |
9340 | if (name[4] == 'w') | |
9341 | { | |
9342 | switch (name[5]) | |
9343 | { | |
9344 | case 'e': | |
9345 | if (name[6] == 'n' && | |
9346 | name[7] == 't') | |
9347 | { /* getpwent */ | |
9348 | return -KEY_getpwent; | |
9349 | } | |
9350 | ||
9351 | goto unknown; | |
9352 | ||
9353 | case 'n': | |
9354 | if (name[6] == 'a' && | |
9355 | name[7] == 'm') | |
9356 | { /* getpwnam */ | |
9357 | return -KEY_getpwnam; | |
9358 | } | |
9359 | ||
9360 | goto unknown; | |
9361 | ||
9362 | case 'u': | |
9363 | if (name[6] == 'i' && | |
9364 | name[7] == 'd') | |
9365 | { /* getpwuid */ | |
9366 | return -KEY_getpwuid; | |
9367 | } | |
9368 | ||
9369 | goto unknown; | |
9370 | ||
9371 | default: | |
9372 | goto unknown; | |
9373 | } | |
9374 | } | |
9375 | ||
9376 | goto unknown; | |
9377 | ||
9378 | default: | |
9379 | goto unknown; | |
9380 | } | |
9381 | } | |
9382 | ||
9383 | goto unknown; | |
9384 | ||
9385 | case 'r': | |
9386 | if (name[1] == 'e' && | |
9387 | name[2] == 'a' && | |
9388 | name[3] == 'd') | |
9389 | { | |
9390 | switch (name[4]) | |
9391 | { | |
9392 | case 'l': | |
9393 | if (name[5] == 'i' && | |
9394 | name[6] == 'n') | |
9395 | { | |
9396 | switch (name[7]) | |
9397 | { | |
9398 | case 'e': | |
9399 | { /* readline */ | |
9400 | return -KEY_readline; | |
9401 | } | |
9402 | ||
4c3bbe0f MHM |
9403 | case 'k': |
9404 | { /* readlink */ | |
9405 | return -KEY_readlink; | |
9406 | } | |
9407 | ||
4c3bbe0f MHM |
9408 | default: |
9409 | goto unknown; | |
9410 | } | |
9411 | } | |
9412 | ||
9413 | goto unknown; | |
9414 | ||
9415 | case 'p': | |
9416 | if (name[5] == 'i' && | |
9417 | name[6] == 'p' && | |
9418 | name[7] == 'e') | |
9419 | { /* readpipe */ | |
9420 | return -KEY_readpipe; | |
9421 | } | |
9422 | ||
9423 | goto unknown; | |
9424 | ||
9425 | default: | |
9426 | goto unknown; | |
9427 | } | |
9428 | } | |
9429 | ||
9430 | goto unknown; | |
9431 | ||
9432 | case 's': | |
9433 | switch (name[1]) | |
9434 | { | |
9435 | case 'e': | |
9436 | if (name[2] == 't') | |
9437 | { | |
9438 | switch (name[3]) | |
9439 | { | |
9440 | case 'g': | |
9441 | if (name[4] == 'r' && | |
9442 | name[5] == 'e' && | |
9443 | name[6] == 'n' && | |
9444 | name[7] == 't') | |
9445 | { /* setgrent */ | |
9446 | return -KEY_setgrent; | |
9447 | } | |
9448 | ||
9449 | goto unknown; | |
9450 | ||
9451 | case 'p': | |
9452 | if (name[4] == 'w' && | |
9453 | name[5] == 'e' && | |
9454 | name[6] == 'n' && | |
9455 | name[7] == 't') | |
9456 | { /* setpwent */ | |
9457 | return -KEY_setpwent; | |
9458 | } | |
9459 | ||
9460 | goto unknown; | |
9461 | ||
9462 | default: | |
9463 | goto unknown; | |
9464 | } | |
9465 | } | |
9466 | ||
9467 | goto unknown; | |
9468 | ||
9469 | case 'h': | |
9470 | switch (name[2]) | |
9471 | { | |
9472 | case 'm': | |
9473 | if (name[3] == 'w' && | |
9474 | name[4] == 'r' && | |
9475 | name[5] == 'i' && | |
9476 | name[6] == 't' && | |
9477 | name[7] == 'e') | |
9478 | { /* shmwrite */ | |
9479 | return -KEY_shmwrite; | |
9480 | } | |
9481 | ||
9482 | goto unknown; | |
9483 | ||
9484 | case 'u': | |
9485 | if (name[3] == 't' && | |
9486 | name[4] == 'd' && | |
9487 | name[5] == 'o' && | |
9488 | name[6] == 'w' && | |
9489 | name[7] == 'n') | |
9490 | { /* shutdown */ | |
9491 | return -KEY_shutdown; | |
9492 | } | |
9493 | ||
9494 | goto unknown; | |
9495 | ||
9496 | default: | |
9497 | goto unknown; | |
9498 | } | |
9499 | ||
9500 | case 'y': | |
9501 | if (name[2] == 's' && | |
9502 | name[3] == 'w' && | |
9503 | name[4] == 'r' && | |
9504 | name[5] == 'i' && | |
9505 | name[6] == 't' && | |
9506 | name[7] == 'e') | |
9507 | { /* syswrite */ | |
9508 | return -KEY_syswrite; | |
9509 | } | |
9510 | ||
9511 | goto unknown; | |
9512 | ||
9513 | default: | |
9514 | goto unknown; | |
9515 | } | |
9516 | ||
9517 | case 't': | |
9518 | if (name[1] == 'r' && | |
9519 | name[2] == 'u' && | |
9520 | name[3] == 'n' && | |
9521 | name[4] == 'c' && | |
9522 | name[5] == 'a' && | |
9523 | name[6] == 't' && | |
9524 | name[7] == 'e') | |
9525 | { /* truncate */ | |
9526 | return -KEY_truncate; | |
9527 | } | |
9528 | ||
9529 | goto unknown; | |
9530 | ||
9531 | default: | |
9532 | goto unknown; | |
9533 | } | |
9534 | ||
9535 | case 9: /* 8 tokens of length 9 */ | |
9536 | switch (name[0]) | |
9537 | { | |
9538 | case 'e': | |
9539 | if (name[1] == 'n' && | |
9540 | name[2] == 'd' && | |
9541 | name[3] == 'n' && | |
9542 | name[4] == 'e' && | |
9543 | name[5] == 't' && | |
9544 | name[6] == 'e' && | |
9545 | name[7] == 'n' && | |
9546 | name[8] == 't') | |
9547 | { /* endnetent */ | |
9548 | return -KEY_endnetent; | |
9549 | } | |
9550 | ||
9551 | goto unknown; | |
9552 | ||
9553 | case 'g': | |
9554 | if (name[1] == 'e' && | |
9555 | name[2] == 't' && | |
9556 | name[3] == 'n' && | |
9557 | name[4] == 'e' && | |
9558 | name[5] == 't' && | |
9559 | name[6] == 'e' && | |
9560 | name[7] == 'n' && | |
9561 | name[8] == 't') | |
9562 | { /* getnetent */ | |
9563 | return -KEY_getnetent; | |
9564 | } | |
9565 | ||
9566 | goto unknown; | |
9567 | ||
9568 | case 'l': | |
9569 | if (name[1] == 'o' && | |
9570 | name[2] == 'c' && | |
9571 | name[3] == 'a' && | |
9572 | name[4] == 'l' && | |
9573 | name[5] == 't' && | |
9574 | name[6] == 'i' && | |
9575 | name[7] == 'm' && | |
9576 | name[8] == 'e') | |
9577 | { /* localtime */ | |
9578 | return -KEY_localtime; | |
9579 | } | |
9580 | ||
9581 | goto unknown; | |
9582 | ||
9583 | case 'p': | |
9584 | if (name[1] == 'r' && | |
9585 | name[2] == 'o' && | |
9586 | name[3] == 't' && | |
9587 | name[4] == 'o' && | |
9588 | name[5] == 't' && | |
9589 | name[6] == 'y' && | |
9590 | name[7] == 'p' && | |
9591 | name[8] == 'e') | |
9592 | { /* prototype */ | |
9593 | return KEY_prototype; | |
9594 | } | |
9595 | ||
9596 | goto unknown; | |
9597 | ||
9598 | case 'q': | |
9599 | if (name[1] == 'u' && | |
9600 | name[2] == 'o' && | |
9601 | name[3] == 't' && | |
9602 | name[4] == 'e' && | |
9603 | name[5] == 'm' && | |
9604 | name[6] == 'e' && | |
9605 | name[7] == 't' && | |
9606 | name[8] == 'a') | |
9607 | { /* quotemeta */ | |
9608 | return -KEY_quotemeta; | |
9609 | } | |
9610 | ||
9611 | goto unknown; | |
9612 | ||
9613 | case 'r': | |
9614 | if (name[1] == 'e' && | |
9615 | name[2] == 'w' && | |
9616 | name[3] == 'i' && | |
9617 | name[4] == 'n' && | |
9618 | name[5] == 'd' && | |
9619 | name[6] == 'd' && | |
9620 | name[7] == 'i' && | |
9621 | name[8] == 'r') | |
9622 | { /* rewinddir */ | |
9623 | return -KEY_rewinddir; | |
9624 | } | |
9625 | ||
9626 | goto unknown; | |
9627 | ||
9628 | case 's': | |
9629 | if (name[1] == 'e' && | |
9630 | name[2] == 't' && | |
9631 | name[3] == 'n' && | |
9632 | name[4] == 'e' && | |
9633 | name[5] == 't' && | |
9634 | name[6] == 'e' && | |
9635 | name[7] == 'n' && | |
9636 | name[8] == 't') | |
9637 | { /* setnetent */ | |
9638 | return -KEY_setnetent; | |
9639 | } | |
9640 | ||
9641 | goto unknown; | |
9642 | ||
9643 | case 'w': | |
9644 | if (name[1] == 'a' && | |
9645 | name[2] == 'n' && | |
9646 | name[3] == 't' && | |
9647 | name[4] == 'a' && | |
9648 | name[5] == 'r' && | |
9649 | name[6] == 'r' && | |
9650 | name[7] == 'a' && | |
9651 | name[8] == 'y') | |
9652 | { /* wantarray */ | |
9653 | return -KEY_wantarray; | |
9654 | } | |
9655 | ||
9656 | goto unknown; | |
9657 | ||
9658 | default: | |
9659 | goto unknown; | |
9660 | } | |
9661 | ||
9662 | case 10: /* 9 tokens of length 10 */ | |
9663 | switch (name[0]) | |
9664 | { | |
9665 | case 'e': | |
9666 | if (name[1] == 'n' && | |
9667 | name[2] == 'd') | |
9668 | { | |
9669 | switch (name[3]) | |
9670 | { | |
9671 | case 'h': | |
9672 | if (name[4] == 'o' && | |
9673 | name[5] == 's' && | |
9674 | name[6] == 't' && | |
9675 | name[7] == 'e' && | |
9676 | name[8] == 'n' && | |
9677 | name[9] == 't') | |
9678 | { /* endhostent */ | |
9679 | return -KEY_endhostent; | |
9680 | } | |
9681 | ||
9682 | goto unknown; | |
9683 | ||
9684 | case 's': | |
9685 | if (name[4] == 'e' && | |
9686 | name[5] == 'r' && | |
9687 | name[6] == 'v' && | |
9688 | name[7] == 'e' && | |
9689 | name[8] == 'n' && | |
9690 | name[9] == 't') | |
9691 | { /* endservent */ | |
9692 | return -KEY_endservent; | |
9693 | } | |
9694 | ||
9695 | goto unknown; | |
9696 | ||
9697 | default: | |
9698 | goto unknown; | |
9699 | } | |
9700 | } | |
9701 | ||
9702 | goto unknown; | |
9703 | ||
9704 | case 'g': | |
9705 | if (name[1] == 'e' && | |
9706 | name[2] == 't') | |
9707 | { | |
9708 | switch (name[3]) | |
9709 | { | |
9710 | case 'h': | |
9711 | if (name[4] == 'o' && | |
9712 | name[5] == 's' && | |
9713 | name[6] == 't' && | |
9714 | name[7] == 'e' && | |
9715 | name[8] == 'n' && | |
9716 | name[9] == 't') | |
9717 | { /* gethostent */ | |
9718 | return -KEY_gethostent; | |
9719 | } | |
9720 | ||
9721 | goto unknown; | |
9722 | ||
9723 | case 's': | |
9724 | switch (name[4]) | |
9725 | { | |
9726 | case 'e': | |
9727 | if (name[5] == 'r' && | |
9728 | name[6] == 'v' && | |
9729 | name[7] == 'e' && | |
9730 | name[8] == 'n' && | |
9731 | name[9] == 't') | |
9732 | { /* getservent */ | |
9733 | return -KEY_getservent; | |
9734 | } | |
9735 | ||
9736 | goto unknown; | |
9737 | ||
9738 | case 'o': | |
9739 | if (name[5] == 'c' && | |
9740 | name[6] == 'k' && | |
9741 | name[7] == 'o' && | |
9742 | name[8] == 'p' && | |
9743 | name[9] == 't') | |
9744 | { /* getsockopt */ | |
9745 | return -KEY_getsockopt; | |
9746 | } | |
9747 | ||
9748 | goto unknown; | |
9749 | ||
9750 | default: | |
9751 | goto unknown; | |
9752 | } | |
9753 | ||
9754 | default: | |
9755 | goto unknown; | |
9756 | } | |
9757 | } | |
9758 | ||
9759 | goto unknown; | |
9760 | ||
9761 | case 's': | |
9762 | switch (name[1]) | |
9763 | { | |
9764 | case 'e': | |
9765 | if (name[2] == 't') | |
9766 | { | |
9767 | switch (name[3]) | |
9768 | { | |
9769 | case 'h': | |
9770 | if (name[4] == 'o' && | |
9771 | name[5] == 's' && | |
9772 | name[6] == 't' && | |
9773 | name[7] == 'e' && | |
9774 | name[8] == 'n' && | |
9775 | name[9] == 't') | |
9776 | { /* sethostent */ | |
9777 | return -KEY_sethostent; | |
9778 | } | |
9779 | ||
9780 | goto unknown; | |
9781 | ||
9782 | case 's': | |
9783 | switch (name[4]) | |
9784 | { | |
9785 | case 'e': | |
9786 | if (name[5] == 'r' && | |
9787 | name[6] == 'v' && | |
9788 | name[7] == 'e' && | |
9789 | name[8] == 'n' && | |
9790 | name[9] == 't') | |
9791 | { /* setservent */ | |
9792 | return -KEY_setservent; | |
9793 | } | |
9794 | ||
9795 | goto unknown; | |
9796 | ||
9797 | case 'o': | |
9798 | if (name[5] == 'c' && | |
9799 | name[6] == 'k' && | |
9800 | name[7] == 'o' && | |
9801 | name[8] == 'p' && | |
9802 | name[9] == 't') | |
9803 | { /* setsockopt */ | |
9804 | return -KEY_setsockopt; | |
9805 | } | |
9806 | ||
9807 | goto unknown; | |
9808 | ||
9809 | default: | |
9810 | goto unknown; | |
9811 | } | |
9812 | ||
9813 | default: | |
9814 | goto unknown; | |
9815 | } | |
9816 | } | |
9817 | ||
9818 | goto unknown; | |
9819 | ||
9820 | case 'o': | |
9821 | if (name[2] == 'c' && | |
9822 | name[3] == 'k' && | |
9823 | name[4] == 'e' && | |
9824 | name[5] == 't' && | |
9825 | name[6] == 'p' && | |
9826 | name[7] == 'a' && | |
9827 | name[8] == 'i' && | |
9828 | name[9] == 'r') | |
9829 | { /* socketpair */ | |
9830 | return -KEY_socketpair; | |
9831 | } | |
9832 | ||
9833 | goto unknown; | |
9834 | ||
9835 | default: | |
9836 | goto unknown; | |
9837 | } | |
9838 | ||
9839 | default: | |
9840 | goto unknown; | |
e2e1dd5a | 9841 | } |
4c3bbe0f MHM |
9842 | |
9843 | case 11: /* 8 tokens of length 11 */ | |
9844 | switch (name[0]) | |
9845 | { | |
9846 | case '_': | |
9847 | if (name[1] == '_' && | |
9848 | name[2] == 'P' && | |
9849 | name[3] == 'A' && | |
9850 | name[4] == 'C' && | |
9851 | name[5] == 'K' && | |
9852 | name[6] == 'A' && | |
9853 | name[7] == 'G' && | |
9854 | name[8] == 'E' && | |
9855 | name[9] == '_' && | |
9856 | name[10] == '_') | |
9857 | { /* __PACKAGE__ */ | |
9858 | return -KEY___PACKAGE__; | |
9859 | } | |
9860 | ||
9861 | goto unknown; | |
9862 | ||
9863 | case 'e': | |
9864 | if (name[1] == 'n' && | |
9865 | name[2] == 'd' && | |
9866 | name[3] == 'p' && | |
9867 | name[4] == 'r' && | |
9868 | name[5] == 'o' && | |
9869 | name[6] == 't' && | |
9870 | name[7] == 'o' && | |
9871 | name[8] == 'e' && | |
9872 | name[9] == 'n' && | |
9873 | name[10] == 't') | |
9874 | { /* endprotoent */ | |
9875 | return -KEY_endprotoent; | |
9876 | } | |
9877 | ||
9878 | goto unknown; | |
9879 | ||
9880 | case 'g': | |
9881 | if (name[1] == 'e' && | |
9882 | name[2] == 't') | |
9883 | { | |
9884 | switch (name[3]) | |
9885 | { | |
9886 | case 'p': | |
9887 | switch (name[4]) | |
9888 | { | |
9889 | case 'e': | |
9890 | if (name[5] == 'e' && | |
9891 | name[6] == 'r' && | |
9892 | name[7] == 'n' && | |
9893 | name[8] == 'a' && | |
9894 | name[9] == 'm' && | |
9895 | name[10] == 'e') | |
9896 | { /* getpeername */ | |
9897 | return -KEY_getpeername; | |
9898 | } | |
9899 | ||
9900 | goto unknown; | |
9901 | ||
9902 | case 'r': | |
9903 | switch (name[5]) | |
9904 | { | |
9905 | case 'i': | |
9906 | if (name[6] == 'o' && | |
9907 | name[7] == 'r' && | |
9908 | name[8] == 'i' && | |
9909 | name[9] == 't' && | |
9910 | name[10] == 'y') | |
9911 | { /* getpriority */ | |
9912 | return -KEY_getpriority; | |
9913 | } | |
9914 | ||
9915 | goto unknown; | |
9916 | ||
9917 | case 'o': | |
9918 | if (name[6] == 't' && | |
9919 | name[7] == 'o' && | |
9920 | name[8] == 'e' && | |
9921 | name[9] == 'n' && | |
9922 | name[10] == 't') | |
9923 | { /* getprotoent */ | |
9924 | return -KEY_getprotoent; | |
9925 | } | |
9926 | ||
9927 | goto unknown; | |
9928 | ||
9929 | default: | |
9930 | goto unknown; | |
9931 | } | |
9932 | ||
9933 | default: | |
9934 | goto unknown; | |
9935 | } | |
9936 | ||
9937 | case 's': | |
9938 | if (name[4] == 'o' && | |
9939 | name[5] == 'c' && | |
9940 | name[6] == 'k' && | |
9941 | name[7] == 'n' && | |
9942 | name[8] == 'a' && | |
9943 | name[9] == 'm' && | |
9944 | name[10] == 'e') | |
9945 | { /* getsockname */ | |
9946 | return -KEY_getsockname; | |
9947 | } | |
9948 | ||
9949 | goto unknown; | |
9950 | ||
9951 | default: | |
9952 | goto unknown; | |
9953 | } | |
9954 | } | |
9955 | ||
9956 | goto unknown; | |
9957 | ||
9958 | case 's': | |
9959 | if (name[1] == 'e' && | |
9960 | name[2] == 't' && | |
9961 | name[3] == 'p' && | |
9962 | name[4] == 'r') | |
9963 | { | |
9964 | switch (name[5]) | |
9965 | { | |
9966 | case 'i': | |
9967 | if (name[6] == 'o' && | |
9968 | name[7] == 'r' && | |
9969 | name[8] == 'i' && | |
9970 | name[9] == 't' && | |
9971 | name[10] == 'y') | |
9972 | { /* setpriority */ | |
9973 | return -KEY_setpriority; | |
9974 | } | |
9975 | ||
9976 | goto unknown; | |
9977 | ||
9978 | case 'o': | |
9979 | if (name[6] == 't' && | |
9980 | name[7] == 'o' && | |
9981 | name[8] == 'e' && | |
9982 | name[9] == 'n' && | |
9983 | name[10] == 't') | |
9984 | { /* setprotoent */ | |
9985 | return -KEY_setprotoent; | |
9986 | } | |
9987 | ||
9988 | goto unknown; | |
9989 | ||
9990 | default: | |
9991 | goto unknown; | |
9992 | } | |
9993 | } | |
9994 | ||
9995 | goto unknown; | |
9996 | ||
9997 | default: | |
9998 | goto unknown; | |
e2e1dd5a | 9999 | } |
4c3bbe0f MHM |
10000 | |
10001 | case 12: /* 2 tokens of length 12 */ | |
10002 | if (name[0] == 'g' && | |
10003 | name[1] == 'e' && | |
10004 | name[2] == 't' && | |
10005 | name[3] == 'n' && | |
10006 | name[4] == 'e' && | |
10007 | name[5] == 't' && | |
10008 | name[6] == 'b' && | |
10009 | name[7] == 'y') | |
10010 | { | |
10011 | switch (name[8]) | |
10012 | { | |
10013 | case 'a': | |
10014 | if (name[9] == 'd' && | |
10015 | name[10] == 'd' && | |
10016 | name[11] == 'r') | |
10017 | { /* getnetbyaddr */ | |
10018 | return -KEY_getnetbyaddr; | |
10019 | } | |
10020 | ||
10021 | goto unknown; | |
10022 | ||
10023 | case 'n': | |
10024 | if (name[9] == 'a' && | |
10025 | name[10] == 'm' && | |
10026 | name[11] == 'e') | |
10027 | { /* getnetbyname */ | |
10028 | return -KEY_getnetbyname; | |
10029 | } | |
10030 | ||
10031 | goto unknown; | |
10032 | ||
10033 | default: | |
10034 | goto unknown; | |
10035 | } | |
e2e1dd5a | 10036 | } |
4c3bbe0f MHM |
10037 | |
10038 | goto unknown; | |
10039 | ||
10040 | case 13: /* 4 tokens of length 13 */ | |
10041 | if (name[0] == 'g' && | |
10042 | name[1] == 'e' && | |
10043 | name[2] == 't') | |
10044 | { | |
10045 | switch (name[3]) | |
10046 | { | |
10047 | case 'h': | |
10048 | if (name[4] == 'o' && | |
10049 | name[5] == 's' && | |
10050 | name[6] == 't' && | |
10051 | name[7] == 'b' && | |
10052 | name[8] == 'y') | |
10053 | { | |
10054 | switch (name[9]) | |
10055 | { | |
10056 | case 'a': | |
10057 | if (name[10] == 'd' && | |
10058 | name[11] == 'd' && | |
10059 | name[12] == 'r') | |
10060 | { /* gethostbyaddr */ | |
10061 | return -KEY_gethostbyaddr; | |
10062 | } | |
10063 | ||
10064 | goto unknown; | |
10065 | ||
10066 | case 'n': | |
10067 | if (name[10] == 'a' && | |
10068 | name[11] == 'm' && | |
10069 | name[12] == 'e') | |
10070 | { /* gethostbyname */ | |
10071 | return -KEY_gethostbyname; | |
10072 | } | |
10073 | ||
10074 | goto unknown; | |
10075 | ||
10076 | default: | |
10077 | goto unknown; | |
10078 | } | |
10079 | } | |
10080 | ||
10081 | goto unknown; | |
10082 | ||
10083 | case 's': | |
10084 | if (name[4] == 'e' && | |
10085 | name[5] == 'r' && | |
10086 | name[6] == 'v' && | |
10087 | name[7] == 'b' && | |
10088 | name[8] == 'y') | |
10089 | { | |
10090 | switch (name[9]) | |
10091 | { | |
10092 | case 'n': | |
10093 | if (name[10] == 'a' && | |
10094 | name[11] == 'm' && | |
10095 | name[12] == 'e') | |
10096 | { /* getservbyname */ | |
10097 | return -KEY_getservbyname; | |
10098 | } | |
10099 | ||
10100 | goto unknown; | |
10101 | ||
10102 | case 'p': | |
10103 | if (name[10] == 'o' && | |
10104 | name[11] == 'r' && | |
10105 | name[12] == 't') | |
10106 | { /* getservbyport */ | |
10107 | return -KEY_getservbyport; | |
10108 | } | |
10109 | ||
10110 | goto unknown; | |
10111 | ||
10112 | default: | |
10113 | goto unknown; | |
10114 | } | |
10115 | } | |
10116 | ||
10117 | goto unknown; | |
10118 | ||
10119 | default: | |
10120 | goto unknown; | |
10121 | } | |
e2e1dd5a | 10122 | } |
4c3bbe0f MHM |
10123 | |
10124 | goto unknown; | |
10125 | ||
10126 | case 14: /* 1 tokens of length 14 */ | |
10127 | if (name[0] == 'g' && | |
10128 | name[1] == 'e' && | |
10129 | name[2] == 't' && | |
10130 | name[3] == 'p' && | |
10131 | name[4] == 'r' && | |
10132 | name[5] == 'o' && | |
10133 | name[6] == 't' && | |
10134 | name[7] == 'o' && | |
10135 | name[8] == 'b' && | |
10136 | name[9] == 'y' && | |
10137 | name[10] == 'n' && | |
10138 | name[11] == 'a' && | |
10139 | name[12] == 'm' && | |
10140 | name[13] == 'e') | |
10141 | { /* getprotobyname */ | |
10142 | return -KEY_getprotobyname; | |
10143 | } | |
10144 | ||
10145 | goto unknown; | |
10146 | ||
10147 | case 16: /* 1 tokens of length 16 */ | |
10148 | if (name[0] == 'g' && | |
10149 | name[1] == 'e' && | |
10150 | name[2] == 't' && | |
10151 | name[3] == 'p' && | |
10152 | name[4] == 'r' && | |
10153 | name[5] == 'o' && | |
10154 | name[6] == 't' && | |
10155 | name[7] == 'o' && | |
10156 | name[8] == 'b' && | |
10157 | name[9] == 'y' && | |
10158 | name[10] == 'n' && | |
10159 | name[11] == 'u' && | |
10160 | name[12] == 'm' && | |
10161 | name[13] == 'b' && | |
10162 | name[14] == 'e' && | |
10163 | name[15] == 'r') | |
10164 | { /* getprotobynumber */ | |
10165 | return -KEY_getprotobynumber; | |
10166 | } | |
10167 | ||
10168 | goto unknown; | |
10169 | ||
10170 | default: | |
10171 | goto unknown; | |
e2e1dd5a | 10172 | } |
4c3bbe0f MHM |
10173 | |
10174 | unknown: | |
e2e1dd5a | 10175 | return 0; |
a687059c LW |
10176 | } |
10177 | ||
76e3520e | 10178 | STATIC void |
c94115d8 | 10179 | S_checkcomma(pTHX_ const char *s, const char *name, const char *what) |
a687059c | 10180 | { |
97aff369 | 10181 | dVAR; |
2f3197b3 | 10182 | |
d008e5eb | 10183 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
10184 | if (ckWARN(WARN_SYNTAX)) { |
10185 | int level = 1; | |
26ff0806 | 10186 | const char *w; |
d008e5eb GS |
10187 | for (w = s+2; *w && level; w++) { |
10188 | if (*w == '(') | |
10189 | ++level; | |
10190 | else if (*w == ')') | |
10191 | --level; | |
10192 | } | |
888fea98 NC |
10193 | while (isSPACE(*w)) |
10194 | ++w; | |
d008e5eb | 10195 | if (!*w || !strchr(";|})]oaiuw!=", *w)) /* an advisory hack only... */ |
9014280d | 10196 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 10197 | "%s (...) interpreted as function",name); |
d008e5eb | 10198 | } |
2f3197b3 | 10199 | } |
3280af22 | 10200 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 10201 | s++; |
a687059c LW |
10202 | if (*s == '(') |
10203 | s++; | |
3280af22 | 10204 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10205 | s++; |
7e2040f0 | 10206 | if (isIDFIRST_lazy_if(s,UTF)) { |
26ff0806 | 10207 | const char * const w = s++; |
7e2040f0 | 10208 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 10209 | s++; |
3280af22 | 10210 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10211 | s++; |
e929a76b | 10212 | if (*s == ',') { |
c94115d8 NC |
10213 | GV* gv; |
10214 | if (keyword(w, s - w)) | |
e929a76b | 10215 | return; |
c94115d8 NC |
10216 | |
10217 | gv = gv_fetchpvn_flags(w, s - w, 0, SVt_PVCV); | |
10218 | if (gv && GvCVu(gv)) | |
abbb3198 | 10219 | return; |
cea2e8a9 | 10220 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
10221 | } |
10222 | } | |
10223 | } | |
10224 | ||
423cee85 JH |
10225 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
10226 | Best used as sv=new_constant(..., sv, ...). | |
10227 | If s, pv are NULL, calls subroutine with one argument, | |
10228 | and type is used with error messages only. */ | |
10229 | ||
b3ac6de7 | 10230 | STATIC SV * |
7fc63493 | 10231 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, SV *sv, SV *pv, |
9b0e499b | 10232 | const char *type) |
b3ac6de7 | 10233 | { |
27da23d5 | 10234 | dVAR; dSP; |
890ce7af | 10235 | HV * const table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 10236 | SV *res; |
b3ac6de7 IZ |
10237 | SV **cvp; |
10238 | SV *cv, *typesv; | |
89e33a05 | 10239 | const char *why1 = "", *why2 = "", *why3 = ""; |
4e553d73 | 10240 | |
f0af216f | 10241 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
10242 | SV *msg; |
10243 | ||
f0af216f | 10244 | why2 = strEQ(key,"charnames") |
41ab332f | 10245 | ? "(possibly a missing \"use charnames ...\")" |
f0af216f | 10246 | : ""; |
4e553d73 | 10247 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
10248 | (type ? type: "undef"), why2); |
10249 | ||
10250 | /* This is convoluted and evil ("goto considered harmful") | |
10251 | * but I do not understand the intricacies of all the different | |
10252 | * failure modes of %^H in here. The goal here is to make | |
10253 | * the most probable error message user-friendly. --jhi */ | |
10254 | ||
10255 | goto msgdone; | |
10256 | ||
423cee85 | 10257 | report: |
4e553d73 | 10258 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 10259 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 10260 | msgdone: |
95a20fc0 | 10261 | yyerror(SvPVX_const(msg)); |
423cee85 JH |
10262 | SvREFCNT_dec(msg); |
10263 | return sv; | |
10264 | } | |
b3ac6de7 IZ |
10265 | cvp = hv_fetch(table, key, strlen(key), FALSE); |
10266 | if (!cvp || !SvOK(*cvp)) { | |
423cee85 JH |
10267 | why1 = "$^H{"; |
10268 | why2 = key; | |
f0af216f | 10269 | why3 = "} is not defined"; |
423cee85 | 10270 | goto report; |
b3ac6de7 IZ |
10271 | } |
10272 | sv_2mortal(sv); /* Parent created it permanently */ | |
10273 | cv = *cvp; | |
423cee85 JH |
10274 | if (!pv && s) |
10275 | pv = sv_2mortal(newSVpvn(s, len)); | |
10276 | if (type && pv) | |
10277 | typesv = sv_2mortal(newSVpv(type, 0)); | |
b3ac6de7 | 10278 | else |
423cee85 | 10279 | typesv = &PL_sv_undef; |
4e553d73 | 10280 | |
e788e7d3 | 10281 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
10282 | ENTER ; |
10283 | SAVETMPS; | |
4e553d73 | 10284 | |
423cee85 | 10285 | PUSHMARK(SP) ; |
a5845cb7 | 10286 | EXTEND(sp, 3); |
423cee85 JH |
10287 | if (pv) |
10288 | PUSHs(pv); | |
b3ac6de7 | 10289 | PUSHs(sv); |
423cee85 JH |
10290 | if (pv) |
10291 | PUSHs(typesv); | |
b3ac6de7 | 10292 | PUTBACK; |
423cee85 | 10293 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 10294 | |
423cee85 | 10295 | SPAGAIN ; |
4e553d73 | 10296 | |
423cee85 | 10297 | /* Check the eval first */ |
9b0e499b | 10298 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
396482e1 | 10299 | sv_catpvs(ERRSV, "Propagated"); |
8b6b16e7 | 10300 | yyerror(SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */ |
e1f15930 | 10301 | (void)POPs; |
b37c2d43 | 10302 | res = SvREFCNT_inc_simple(sv); |
423cee85 JH |
10303 | } |
10304 | else { | |
10305 | res = POPs; | |
b37c2d43 | 10306 | SvREFCNT_inc_simple_void(res); |
423cee85 | 10307 | } |
4e553d73 | 10308 | |
423cee85 JH |
10309 | PUTBACK ; |
10310 | FREETMPS ; | |
10311 | LEAVE ; | |
b3ac6de7 | 10312 | POPSTACK; |
4e553d73 | 10313 | |
b3ac6de7 | 10314 | if (!SvOK(res)) { |
423cee85 JH |
10315 | why1 = "Call to &{$^H{"; |
10316 | why2 = key; | |
f0af216f | 10317 | why3 = "}} did not return a defined value"; |
423cee85 JH |
10318 | sv = res; |
10319 | goto report; | |
9b0e499b | 10320 | } |
423cee85 | 10321 | |
9b0e499b | 10322 | return res; |
b3ac6de7 | 10323 | } |
4e553d73 | 10324 | |
d0a148a6 NC |
10325 | /* Returns a NUL terminated string, with the length of the string written to |
10326 | *slp | |
10327 | */ | |
76e3520e | 10328 | STATIC char * |
cea2e8a9 | 10329 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 | 10330 | { |
97aff369 | 10331 | dVAR; |
463ee0b2 | 10332 | register char *d = dest; |
890ce7af | 10333 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
463ee0b2 | 10334 | for (;;) { |
8903cb82 | 10335 | if (d >= e) |
cea2e8a9 | 10336 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10337 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10338 | *d++ = *s++; |
7e2040f0 | 10339 | else if (*s == '\'' && allow_package && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10340 | *d++ = ':'; |
10341 | *d++ = ':'; | |
10342 | s++; | |
10343 | } | |
c3e0f903 | 10344 | else if (*s == ':' && s[1] == ':' && allow_package && s[2] != '$') { |
463ee0b2 LW |
10345 | *d++ = *s++; |
10346 | *d++ = *s++; | |
10347 | } | |
fd400ab9 | 10348 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10349 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 10350 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
10351 | t += UTF8SKIP(t); |
10352 | if (d + (t - s) > e) | |
cea2e8a9 | 10353 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
10354 | Copy(s, d, t - s, char); |
10355 | d += t - s; | |
10356 | s = t; | |
10357 | } | |
463ee0b2 LW |
10358 | else { |
10359 | *d = '\0'; | |
10360 | *slp = d - dest; | |
10361 | return s; | |
e929a76b | 10362 | } |
378cc40b LW |
10363 | } |
10364 | } | |
10365 | ||
76e3520e | 10366 | STATIC char * |
f54cb97a | 10367 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b | 10368 | { |
97aff369 | 10369 | dVAR; |
6136c704 | 10370 | char *bracket = NULL; |
748a9306 | 10371 | char funny = *s++; |
6136c704 AL |
10372 | register char *d = dest; |
10373 | register char * const e = d + destlen + 3; /* two-character token, ending NUL */ | |
378cc40b | 10374 | |
a0d0e21e | 10375 | if (isSPACE(*s)) |
29595ff2 | 10376 | s = PEEKSPACE(s); |
de3bb511 | 10377 | if (isDIGIT(*s)) { |
8903cb82 | 10378 | while (isDIGIT(*s)) { |
10379 | if (d >= e) | |
cea2e8a9 | 10380 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 10381 | *d++ = *s++; |
8903cb82 | 10382 | } |
378cc40b LW |
10383 | } |
10384 | else { | |
463ee0b2 | 10385 | for (;;) { |
8903cb82 | 10386 | if (d >= e) |
cea2e8a9 | 10387 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10388 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10389 | *d++ = *s++; |
7e2040f0 | 10390 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10391 | *d++ = ':'; |
10392 | *d++ = ':'; | |
10393 | s++; | |
10394 | } | |
a0d0e21e | 10395 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
10396 | *d++ = *s++; |
10397 | *d++ = *s++; | |
10398 | } | |
fd400ab9 | 10399 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10400 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 10401 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
10402 | t += UTF8SKIP(t); |
10403 | if (d + (t - s) > e) | |
cea2e8a9 | 10404 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
10405 | Copy(s, d, t - s, char); |
10406 | d += t - s; | |
10407 | s = t; | |
10408 | } | |
463ee0b2 LW |
10409 | else |
10410 | break; | |
10411 | } | |
378cc40b LW |
10412 | } |
10413 | *d = '\0'; | |
10414 | d = dest; | |
79072805 | 10415 | if (*d) { |
3280af22 NIS |
10416 | if (PL_lex_state != LEX_NORMAL) |
10417 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 10418 | return s; |
378cc40b | 10419 | } |
748a9306 | 10420 | if (*s == '$' && s[1] && |
3792a11b | 10421 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 10422 | { |
4810e5ec | 10423 | return s; |
5cd24f17 | 10424 | } |
79072805 LW |
10425 | if (*s == '{') { |
10426 | bracket = s; | |
10427 | s++; | |
10428 | } | |
10429 | else if (ck_uni) | |
10430 | check_uni(); | |
93a17b20 | 10431 | if (s < send) |
79072805 LW |
10432 | *d = *s++; |
10433 | d[1] = '\0'; | |
2b92dfce | 10434 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 10435 | *d = toCTRL(*s); |
10436 | s++; | |
de3bb511 | 10437 | } |
79072805 | 10438 | if (bracket) { |
748a9306 | 10439 | if (isSPACE(s[-1])) { |
fa83b5b6 | 10440 | while (s < send) { |
f54cb97a | 10441 | const char ch = *s++; |
bf4acbe4 | 10442 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 10443 | *d = ch; |
10444 | break; | |
10445 | } | |
10446 | } | |
748a9306 | 10447 | } |
7e2040f0 | 10448 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 10449 | d++; |
a0ed51b3 | 10450 | if (UTF) { |
6136c704 AL |
10451 | char *end = s; |
10452 | while ((end < send && isALNUM_lazy_if(end,UTF)) || *end == ':') { | |
10453 | end += UTF8SKIP(end); | |
10454 | while (end < send && UTF8_IS_CONTINUED(*end) && is_utf8_mark((U8*)end)) | |
10455 | end += UTF8SKIP(end); | |
a0ed51b3 | 10456 | } |
6136c704 AL |
10457 | Copy(s, d, end - s, char); |
10458 | d += end - s; | |
10459 | s = end; | |
a0ed51b3 LW |
10460 | } |
10461 | else { | |
2b92dfce | 10462 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 10463 | *d++ = *s++; |
2b92dfce | 10464 | if (d >= e) |
cea2e8a9 | 10465 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 10466 | } |
79072805 | 10467 | *d = '\0'; |
bf4acbe4 | 10468 | while (s < send && SPACE_OR_TAB(*s)) s++; |
ff68c719 | 10469 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
599cee73 | 10470 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest)) { |
dff6d3cd | 10471 | const char *brack = *s == '[' ? "[...]" : "{...}"; |
9014280d | 10472 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 10473 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
10474 | funny, dest, brack, funny, dest, brack); |
10475 | } | |
79072805 | 10476 | bracket++; |
a0be28da | 10477 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
10478 | return s; |
10479 | } | |
4e553d73 NIS |
10480 | } |
10481 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
10482 | * 1999-02-27 mjd-perl-patch@plover.com */ |
10483 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
10484 | && isALNUM(*s)) | |
10485 | { | |
10486 | d++; | |
10487 | while (isALNUM(*s) && d < e) { | |
10488 | *d++ = *s++; | |
10489 | } | |
10490 | if (d >= e) | |
cea2e8a9 | 10491 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 10492 | *d = '\0'; |
79072805 LW |
10493 | } |
10494 | if (*s == '}') { | |
10495 | s++; | |
7df0d042 | 10496 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 10497 | PL_lex_state = LEX_INTERPEND; |
7df0d042 AE |
10498 | PL_expect = XREF; |
10499 | } | |
748a9306 LW |
10500 | if (funny == '#') |
10501 | funny = '@'; | |
d008e5eb | 10502 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 10503 | if (ckWARN(WARN_AMBIGUOUS) && |
864dbfa3 | 10504 | (keyword(dest, d - dest) || get_cv(dest, FALSE))) |
d008e5eb | 10505 | { |
9014280d | 10506 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
10507 | "Ambiguous use of %c{%s} resolved to %c%s", |
10508 | funny, dest, funny, dest); | |
10509 | } | |
10510 | } | |
79072805 LW |
10511 | } |
10512 | else { | |
10513 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 10514 | *dest = '\0'; |
79072805 LW |
10515 | } |
10516 | } | |
3280af22 NIS |
10517 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
10518 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
10519 | return s; |
10520 | } | |
10521 | ||
cea2e8a9 | 10522 | void |
2b36a5a0 | 10523 | Perl_pmflag(pTHX_ U32* pmfl, int ch) |
a0d0e21e | 10524 | { |
96a5add6 | 10525 | PERL_UNUSED_CONTEXT; |
bbce6d69 | 10526 | if (ch == 'i') |
a0d0e21e | 10527 | *pmfl |= PMf_FOLD; |
a0d0e21e LW |
10528 | else if (ch == 'g') |
10529 | *pmfl |= PMf_GLOBAL; | |
c90c0ff4 | 10530 | else if (ch == 'c') |
10531 | *pmfl |= PMf_CONTINUE; | |
a0d0e21e LW |
10532 | else if (ch == 'o') |
10533 | *pmfl |= PMf_KEEP; | |
10534 | else if (ch == 'm') | |
10535 | *pmfl |= PMf_MULTILINE; | |
10536 | else if (ch == 's') | |
10537 | *pmfl |= PMf_SINGLELINE; | |
10538 | else if (ch == 'x') | |
10539 | *pmfl |= PMf_EXTENDED; | |
10540 | } | |
378cc40b | 10541 | |
76e3520e | 10542 | STATIC char * |
cea2e8a9 | 10543 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 10544 | { |
97aff369 | 10545 | dVAR; |
79072805 | 10546 | PMOP *pm; |
5db06880 | 10547 | char *s = scan_str(start,!!PL_madskills,FALSE); |
6136c704 | 10548 | const char * const valid_flags = (type == OP_QR) ? "iomsx" : "iogcmsx"; |
5db06880 NC |
10549 | #ifdef PERL_MAD |
10550 | char *modstart; | |
10551 | #endif | |
10552 | ||
378cc40b | 10553 | |
25c09cbf | 10554 | if (!s) { |
6136c704 | 10555 | const char * const delimiter = skipspace(start); |
25c09cbf SF |
10556 | Perl_croak(aTHX_ *delimiter == '?' |
10557 | ? "Search pattern not terminated or ternary operator parsed as search pattern" | |
10558 | : "Search pattern not terminated" ); | |
10559 | } | |
bbce6d69 | 10560 | |
8782bef2 | 10561 | pm = (PMOP*)newPMOP(type, 0); |
3280af22 | 10562 | if (PL_multi_open == '?') |
79072805 | 10563 | pm->op_pmflags |= PMf_ONCE; |
5db06880 NC |
10564 | #ifdef PERL_MAD |
10565 | modstart = s; | |
10566 | #endif | |
6136c704 AL |
10567 | while (*s && strchr(valid_flags, *s)) |
10568 | pmflag(&pm->op_pmflags,*s++); | |
5db06880 NC |
10569 | #ifdef PERL_MAD |
10570 | if (PL_madskills && modstart != s) { | |
10571 | SV* tmptoken = newSVpvn(modstart, s - modstart); | |
10572 | append_madprops(newMADPROP('m', MAD_SV, tmptoken, 0), (OP*)pm, 0); | |
10573 | } | |
10574 | #endif | |
4ac733c9 | 10575 | /* issue a warning if /c is specified,but /g is not */ |
041457d9 DM |
10576 | if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL) |
10577 | && ckWARN(WARN_REGEXP)) | |
4ac733c9 | 10578 | { |
0bd48802 | 10579 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless without /g" ); |
4ac733c9 MJD |
10580 | } |
10581 | ||
4633a7c4 | 10582 | pm->op_pmpermflags = pm->op_pmflags; |
bbce6d69 | 10583 | |
3280af22 | 10584 | PL_lex_op = (OP*)pm; |
79072805 | 10585 | yylval.ival = OP_MATCH; |
378cc40b LW |
10586 | return s; |
10587 | } | |
10588 | ||
76e3520e | 10589 | STATIC char * |
cea2e8a9 | 10590 | S_scan_subst(pTHX_ char *start) |
79072805 | 10591 | { |
27da23d5 | 10592 | dVAR; |
a0d0e21e | 10593 | register char *s; |
79072805 | 10594 | register PMOP *pm; |
4fdae800 | 10595 | I32 first_start; |
79072805 | 10596 | I32 es = 0; |
5db06880 NC |
10597 | #ifdef PERL_MAD |
10598 | char *modstart; | |
10599 | #endif | |
79072805 | 10600 | |
79072805 LW |
10601 | yylval.ival = OP_NULL; |
10602 | ||
5db06880 | 10603 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 10604 | |
37fd879b | 10605 | if (!s) |
cea2e8a9 | 10606 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 10607 | |
3280af22 | 10608 | if (s[-1] == PL_multi_open) |
79072805 | 10609 | s--; |
5db06880 NC |
10610 | #ifdef PERL_MAD |
10611 | if (PL_madskills) { | |
cd81e915 NC |
10612 | CURMAD('q', PL_thisopen); |
10613 | CURMAD('_', PL_thiswhite); | |
10614 | CURMAD('E', PL_thisstuff); | |
10615 | CURMAD('Q', PL_thisclose); | |
10616 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
10617 | } |
10618 | #endif | |
79072805 | 10619 | |
3280af22 | 10620 | first_start = PL_multi_start; |
5db06880 | 10621 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 10622 | if (!s) { |
37fd879b | 10623 | if (PL_lex_stuff) { |
3280af22 | 10624 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 10625 | PL_lex_stuff = NULL; |
37fd879b | 10626 | } |
cea2e8a9 | 10627 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 10628 | } |
3280af22 | 10629 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 10630 | |
79072805 | 10631 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
5db06880 NC |
10632 | |
10633 | #ifdef PERL_MAD | |
10634 | if (PL_madskills) { | |
cd81e915 NC |
10635 | CURMAD('z', PL_thisopen); |
10636 | CURMAD('R', PL_thisstuff); | |
10637 | CURMAD('Z', PL_thisclose); | |
5db06880 NC |
10638 | } |
10639 | modstart = s; | |
10640 | #endif | |
10641 | ||
48c036b1 | 10642 | while (*s) { |
a687059c LW |
10643 | if (*s == 'e') { |
10644 | s++; | |
2f3197b3 | 10645 | es++; |
a687059c | 10646 | } |
b3eb6a9b | 10647 | else if (strchr("iogcmsx", *s)) |
a0d0e21e | 10648 | pmflag(&pm->op_pmflags,*s++); |
48c036b1 GS |
10649 | else |
10650 | break; | |
378cc40b | 10651 | } |
79072805 | 10652 | |
5db06880 NC |
10653 | #ifdef PERL_MAD |
10654 | if (PL_madskills) { | |
10655 | if (modstart != s) | |
10656 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
10657 | append_madprops(PL_thismad, (OP*)pm, 0); |
10658 | PL_thismad = 0; | |
5db06880 NC |
10659 | } |
10660 | #endif | |
0bd48802 AL |
10661 | if ((pm->op_pmflags & PMf_CONTINUE) && ckWARN(WARN_REGEXP)) { |
10662 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" ); | |
4ac733c9 MJD |
10663 | } |
10664 | ||
79072805 | 10665 | if (es) { |
6136c704 AL |
10666 | SV * const repl = newSVpvs(""); |
10667 | ||
0244c3a4 GS |
10668 | PL_sublex_info.super_bufptr = s; |
10669 | PL_sublex_info.super_bufend = PL_bufend; | |
10670 | PL_multi_end = 0; | |
79072805 | 10671 | pm->op_pmflags |= PMf_EVAL; |
463ee0b2 | 10672 | while (es-- > 0) |
a0d0e21e | 10673 | sv_catpv(repl, es ? "eval " : "do "); |
6f43d98f | 10674 | sv_catpvs(repl, "{"); |
3280af22 | 10675 | sv_catsv(repl, PL_lex_repl); |
6f43d98f | 10676 | sv_catpvs(repl, "}"); |
25da4f38 | 10677 | SvEVALED_on(repl); |
3280af22 NIS |
10678 | SvREFCNT_dec(PL_lex_repl); |
10679 | PL_lex_repl = repl; | |
378cc40b | 10680 | } |
79072805 | 10681 | |
4633a7c4 | 10682 | pm->op_pmpermflags = pm->op_pmflags; |
3280af22 | 10683 | PL_lex_op = (OP*)pm; |
79072805 | 10684 | yylval.ival = OP_SUBST; |
378cc40b LW |
10685 | return s; |
10686 | } | |
10687 | ||
76e3520e | 10688 | STATIC char * |
cea2e8a9 | 10689 | S_scan_trans(pTHX_ char *start) |
378cc40b | 10690 | { |
97aff369 | 10691 | dVAR; |
a0d0e21e | 10692 | register char* s; |
11343788 | 10693 | OP *o; |
79072805 LW |
10694 | short *tbl; |
10695 | I32 squash; | |
a0ed51b3 | 10696 | I32 del; |
79072805 | 10697 | I32 complement; |
5db06880 NC |
10698 | #ifdef PERL_MAD |
10699 | char *modstart; | |
10700 | #endif | |
79072805 LW |
10701 | |
10702 | yylval.ival = OP_NULL; | |
10703 | ||
5db06880 | 10704 | s = scan_str(start,!!PL_madskills,FALSE); |
37fd879b | 10705 | if (!s) |
cea2e8a9 | 10706 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
5db06880 | 10707 | |
3280af22 | 10708 | if (s[-1] == PL_multi_open) |
2f3197b3 | 10709 | s--; |
5db06880 NC |
10710 | #ifdef PERL_MAD |
10711 | if (PL_madskills) { | |
cd81e915 NC |
10712 | CURMAD('q', PL_thisopen); |
10713 | CURMAD('_', PL_thiswhite); | |
10714 | CURMAD('E', PL_thisstuff); | |
10715 | CURMAD('Q', PL_thisclose); | |
10716 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
10717 | } |
10718 | #endif | |
2f3197b3 | 10719 | |
5db06880 | 10720 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 10721 | if (!s) { |
37fd879b | 10722 | if (PL_lex_stuff) { |
3280af22 | 10723 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 10724 | PL_lex_stuff = NULL; |
37fd879b | 10725 | } |
cea2e8a9 | 10726 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 10727 | } |
5db06880 | 10728 | if (PL_madskills) { |
cd81e915 NC |
10729 | CURMAD('z', PL_thisopen); |
10730 | CURMAD('R', PL_thisstuff); | |
10731 | CURMAD('Z', PL_thisclose); | |
5db06880 | 10732 | } |
79072805 | 10733 | |
a0ed51b3 | 10734 | complement = del = squash = 0; |
5db06880 NC |
10735 | #ifdef PERL_MAD |
10736 | modstart = s; | |
10737 | #endif | |
7a1e2023 NC |
10738 | while (1) { |
10739 | switch (*s) { | |
10740 | case 'c': | |
79072805 | 10741 | complement = OPpTRANS_COMPLEMENT; |
7a1e2023 NC |
10742 | break; |
10743 | case 'd': | |
a0ed51b3 | 10744 | del = OPpTRANS_DELETE; |
7a1e2023 NC |
10745 | break; |
10746 | case 's': | |
79072805 | 10747 | squash = OPpTRANS_SQUASH; |
7a1e2023 NC |
10748 | break; |
10749 | default: | |
10750 | goto no_more; | |
10751 | } | |
395c3793 LW |
10752 | s++; |
10753 | } | |
7a1e2023 | 10754 | no_more: |
8973db79 | 10755 | |
a02a5408 | 10756 | Newx(tbl, complement&&!del?258:256, short); |
8973db79 | 10757 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
59f00321 RGS |
10758 | o->op_private &= ~OPpTRANS_ALL; |
10759 | o->op_private |= del|squash|complement| | |
7948272d NIS |
10760 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| |
10761 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 10762 | |
3280af22 | 10763 | PL_lex_op = o; |
79072805 | 10764 | yylval.ival = OP_TRANS; |
5db06880 NC |
10765 | |
10766 | #ifdef PERL_MAD | |
10767 | if (PL_madskills) { | |
10768 | if (modstart != s) | |
10769 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
10770 | append_madprops(PL_thismad, o, 0); |
10771 | PL_thismad = 0; | |
5db06880 NC |
10772 | } |
10773 | #endif | |
10774 | ||
79072805 LW |
10775 | return s; |
10776 | } | |
10777 | ||
76e3520e | 10778 | STATIC char * |
cea2e8a9 | 10779 | S_scan_heredoc(pTHX_ register char *s) |
79072805 | 10780 | { |
97aff369 | 10781 | dVAR; |
79072805 LW |
10782 | SV *herewas; |
10783 | I32 op_type = OP_SCALAR; | |
10784 | I32 len; | |
10785 | SV *tmpstr; | |
10786 | char term; | |
73d840c0 | 10787 | const char *found_newline; |
79072805 | 10788 | register char *d; |
fc36a67e | 10789 | register char *e; |
4633a7c4 | 10790 | char *peek; |
f54cb97a | 10791 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
5db06880 NC |
10792 | #ifdef PERL_MAD |
10793 | I32 stuffstart = s - SvPVX(PL_linestr); | |
10794 | char *tstart; | |
10795 | ||
cd81e915 | 10796 | PL_realtokenstart = -1; |
5db06880 | 10797 | #endif |
79072805 LW |
10798 | |
10799 | s += 2; | |
3280af22 NIS |
10800 | d = PL_tokenbuf; |
10801 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 10802 | if (!outer) |
79072805 | 10803 | *d++ = '\n'; |
bf4acbe4 | 10804 | for (peek = s; SPACE_OR_TAB(*peek); peek++) ; |
3792a11b | 10805 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 10806 | s = peek; |
79072805 | 10807 | term = *s++; |
3280af22 | 10808 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 10809 | d += len; |
3280af22 | 10810 | if (s < PL_bufend) |
79072805 | 10811 | s++; |
79072805 LW |
10812 | } |
10813 | else { | |
10814 | if (*s == '\\') | |
10815 | s++, term = '\''; | |
10816 | else | |
10817 | term = '"'; | |
7e2040f0 | 10818 | if (!isALNUM_lazy_if(s,UTF)) |
12bcd1a6 | 10819 | deprecate_old("bare << to mean <<\"\""); |
7e2040f0 | 10820 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 10821 | if (d < e) |
10822 | *d++ = *s; | |
10823 | } | |
10824 | } | |
3280af22 | 10825 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 10826 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
10827 | *d++ = '\n'; |
10828 | *d = '\0'; | |
3280af22 | 10829 | len = d - PL_tokenbuf; |
5db06880 NC |
10830 | |
10831 | #ifdef PERL_MAD | |
10832 | if (PL_madskills) { | |
10833 | tstart = PL_tokenbuf + !outer; | |
cd81e915 | 10834 | PL_thisclose = newSVpvn(tstart, len - !outer); |
5db06880 | 10835 | tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 | 10836 | PL_thisopen = newSVpvn(tstart, s - tstart); |
5db06880 NC |
10837 | stuffstart = s - SvPVX(PL_linestr); |
10838 | } | |
10839 | #endif | |
6a27c188 | 10840 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
10841 | d = strchr(s, '\r'); |
10842 | if (d) { | |
b464bac0 | 10843 | char * const olds = s; |
f63a84b2 | 10844 | s = d; |
3280af22 | 10845 | while (s < PL_bufend) { |
f63a84b2 LW |
10846 | if (*s == '\r') { |
10847 | *d++ = '\n'; | |
10848 | if (*++s == '\n') | |
10849 | s++; | |
10850 | } | |
10851 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
10852 | *d++ = *s++; | |
10853 | s++; | |
10854 | } | |
10855 | else | |
10856 | *d++ = *s++; | |
10857 | } | |
10858 | *d = '\0'; | |
3280af22 | 10859 | PL_bufend = d; |
95a20fc0 | 10860 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
10861 | s = olds; |
10862 | } | |
10863 | #endif | |
5db06880 NC |
10864 | #ifdef PERL_MAD |
10865 | found_newline = 0; | |
10866 | #endif | |
e81b0615 | 10867 | if ( outer || !(found_newline = memchr(s, '\n', PL_bufend - s)) ) { |
73d840c0 AL |
10868 | herewas = newSVpvn(s,PL_bufend-s); |
10869 | } | |
10870 | else { | |
5db06880 NC |
10871 | #ifdef PERL_MAD |
10872 | herewas = newSVpvn(s-1,found_newline-s+1); | |
10873 | #else | |
73d840c0 AL |
10874 | s--; |
10875 | herewas = newSVpvn(s,found_newline-s); | |
5db06880 | 10876 | #endif |
73d840c0 | 10877 | } |
5db06880 NC |
10878 | #ifdef PERL_MAD |
10879 | if (PL_madskills) { | |
10880 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
10881 | if (PL_thisstuff) |
10882 | sv_catpvn(PL_thisstuff, tstart, s - tstart); | |
5db06880 | 10883 | else |
cd81e915 | 10884 | PL_thisstuff = newSVpvn(tstart, s - tstart); |
5db06880 NC |
10885 | } |
10886 | #endif | |
79072805 | 10887 | s += SvCUR(herewas); |
748a9306 | 10888 | |
5db06880 NC |
10889 | #ifdef PERL_MAD |
10890 | stuffstart = s - SvPVX(PL_linestr); | |
10891 | ||
10892 | if (found_newline) | |
10893 | s--; | |
10894 | #endif | |
10895 | ||
561b68a9 | 10896 | tmpstr = newSV(79); |
748a9306 LW |
10897 | sv_upgrade(tmpstr, SVt_PVIV); |
10898 | if (term == '\'') { | |
79072805 | 10899 | op_type = OP_CONST; |
45977657 | 10900 | SvIV_set(tmpstr, -1); |
748a9306 LW |
10901 | } |
10902 | else if (term == '`') { | |
79072805 | 10903 | op_type = OP_BACKTICK; |
45977657 | 10904 | SvIV_set(tmpstr, '\\'); |
748a9306 | 10905 | } |
79072805 LW |
10906 | |
10907 | CLINE; | |
57843af0 | 10908 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
10909 | PL_multi_open = PL_multi_close = '<'; |
10910 | term = *PL_tokenbuf; | |
0244c3a4 | 10911 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
6136c704 AL |
10912 | char * const bufptr = PL_sublex_info.super_bufptr; |
10913 | char * const bufend = PL_sublex_info.super_bufend; | |
b464bac0 | 10914 | char * const olds = s - SvCUR(herewas); |
0244c3a4 GS |
10915 | s = strchr(bufptr, '\n'); |
10916 | if (!s) | |
10917 | s = bufend; | |
10918 | d = s; | |
10919 | while (s < bufend && | |
10920 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
10921 | if (*s++ == '\n') | |
57843af0 | 10922 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
10923 | } |
10924 | if (s >= bufend) { | |
eb160463 | 10925 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
10926 | missingterm(PL_tokenbuf); |
10927 | } | |
10928 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
10929 | sv_setpvn(tmpstr,d+1,s-d); | |
10930 | s += len - 1; | |
10931 | sv_catpvn(herewas,s,bufend-s); | |
95a20fc0 | 10932 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
10933 | |
10934 | s = olds; | |
10935 | goto retval; | |
10936 | } | |
10937 | else if (!outer) { | |
79072805 | 10938 | d = s; |
3280af22 NIS |
10939 | while (s < PL_bufend && |
10940 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 10941 | if (*s++ == '\n') |
57843af0 | 10942 | CopLINE_inc(PL_curcop); |
79072805 | 10943 | } |
3280af22 | 10944 | if (s >= PL_bufend) { |
eb160463 | 10945 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 10946 | missingterm(PL_tokenbuf); |
79072805 LW |
10947 | } |
10948 | sv_setpvn(tmpstr,d+1,s-d); | |
5db06880 NC |
10949 | #ifdef PERL_MAD |
10950 | if (PL_madskills) { | |
cd81e915 NC |
10951 | if (PL_thisstuff) |
10952 | sv_catpvn(PL_thisstuff, d + 1, s - d); | |
5db06880 | 10953 | else |
cd81e915 | 10954 | PL_thisstuff = newSVpvn(d + 1, s - d); |
5db06880 NC |
10955 | stuffstart = s - SvPVX(PL_linestr); |
10956 | } | |
10957 | #endif | |
79072805 | 10958 | s += len - 1; |
57843af0 | 10959 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 10960 | |
3280af22 NIS |
10961 | sv_catpvn(herewas,s,PL_bufend-s); |
10962 | sv_setsv(PL_linestr,herewas); | |
10963 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
10964 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 10965 | PL_last_lop = PL_last_uni = NULL; |
79072805 LW |
10966 | } |
10967 | else | |
10968 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
3280af22 | 10969 | while (s >= PL_bufend) { /* multiple line string? */ |
5db06880 NC |
10970 | #ifdef PERL_MAD |
10971 | if (PL_madskills) { | |
10972 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
10973 | if (PL_thisstuff) |
10974 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 10975 | else |
cd81e915 | 10976 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
10977 | } |
10978 | #endif | |
fd2d0953 | 10979 | if (!outer || |
3280af22 | 10980 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { |
eb160463 | 10981 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 10982 | missingterm(PL_tokenbuf); |
79072805 | 10983 | } |
5db06880 NC |
10984 | #ifdef PERL_MAD |
10985 | stuffstart = s - SvPVX(PL_linestr); | |
10986 | #endif | |
57843af0 | 10987 | CopLINE_inc(PL_curcop); |
3280af22 | 10988 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 10989 | PL_last_lop = PL_last_uni = NULL; |
6a27c188 | 10990 | #ifndef PERL_STRICT_CR |
3280af22 | 10991 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
10992 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
10993 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 10994 | { |
3280af22 NIS |
10995 | PL_bufend[-2] = '\n'; |
10996 | PL_bufend--; | |
95a20fc0 | 10997 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 10998 | } |
3280af22 NIS |
10999 | else if (PL_bufend[-1] == '\r') |
11000 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11001 | } |
3280af22 NIS |
11002 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
11003 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11004 | #endif |
3280af22 | 11005 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
561b68a9 | 11006 | SV * const sv = newSV(0); |
79072805 | 11007 | |
93a17b20 | 11008 | sv_upgrade(sv, SVt_PVMG); |
3280af22 | 11009 | sv_setsv(sv,PL_linestr); |
0ac0412a | 11010 | (void)SvIOK_on(sv); |
45977657 | 11011 | SvIV_set(sv, 0); |
36c7798d | 11012 | av_store(CopFILEAVx(PL_curcop), (I32)CopLINE(PL_curcop),sv); |
79072805 | 11013 | } |
3280af22 | 11014 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
95a20fc0 | 11015 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
1de9afcd | 11016 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
11017 | sv_catsv(PL_linestr,herewas); |
11018 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
1de9afcd | 11019 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
11020 | } |
11021 | else { | |
3280af22 NIS |
11022 | s = PL_bufend; |
11023 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
11024 | } |
11025 | } | |
79072805 | 11026 | s++; |
0244c3a4 | 11027 | retval: |
57843af0 | 11028 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 11029 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
1da4ca5f | 11030 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 11031 | } |
8990e307 | 11032 | SvREFCNT_dec(herewas); |
2f31ce75 | 11033 | if (!IN_BYTES) { |
95a20fc0 | 11034 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
2f31ce75 JH |
11035 | SvUTF8_on(tmpstr); |
11036 | else if (PL_encoding) | |
11037 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
11038 | } | |
3280af22 | 11039 | PL_lex_stuff = tmpstr; |
79072805 LW |
11040 | yylval.ival = op_type; |
11041 | return s; | |
11042 | } | |
11043 | ||
02aa26ce NT |
11044 | /* scan_inputsymbol |
11045 | takes: current position in input buffer | |
11046 | returns: new position in input buffer | |
11047 | side-effects: yylval and lex_op are set. | |
11048 | ||
11049 | This code handles: | |
11050 | ||
11051 | <> read from ARGV | |
11052 | <FH> read from filehandle | |
11053 | <pkg::FH> read from package qualified filehandle | |
11054 | <pkg'FH> read from package qualified filehandle | |
11055 | <$fh> read from filehandle in $fh | |
11056 | <*.h> filename glob | |
11057 | ||
11058 | */ | |
11059 | ||
76e3520e | 11060 | STATIC char * |
cea2e8a9 | 11061 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 11062 | { |
97aff369 | 11063 | dVAR; |
02aa26ce | 11064 | register char *s = start; /* current position in buffer */ |
1b420867 | 11065 | char *end; |
79072805 LW |
11066 | I32 len; |
11067 | ||
6136c704 AL |
11068 | char *d = PL_tokenbuf; /* start of temp holding space */ |
11069 | const char * const e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
11070 | ||
1b420867 GS |
11071 | end = strchr(s, '\n'); |
11072 | if (!end) | |
11073 | end = PL_bufend; | |
11074 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
11075 | |
11076 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 11077 | or if it didn't end, or if we see a newline |
02aa26ce NT |
11078 | */ |
11079 | ||
3280af22 | 11080 | if (len >= sizeof PL_tokenbuf) |
cea2e8a9 | 11081 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 11082 | if (s >= end) |
cea2e8a9 | 11083 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 11084 | |
fc36a67e | 11085 | s++; |
02aa26ce NT |
11086 | |
11087 | /* check for <$fh> | |
11088 | Remember, only scalar variables are interpreted as filehandles by | |
11089 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
11090 | treated as a glob() call. | |
11091 | This code makes use of the fact that except for the $ at the front, | |
11092 | a scalar variable and a filehandle look the same. | |
11093 | */ | |
4633a7c4 | 11094 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
11095 | |
11096 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 11097 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 11098 | d++; |
02aa26ce NT |
11099 | |
11100 | /* If we've tried to read what we allow filehandles to look like, and | |
11101 | there's still text left, then it must be a glob() and not a getline. | |
11102 | Use scan_str to pull out the stuff between the <> and treat it | |
11103 | as nothing more than a string. | |
11104 | */ | |
11105 | ||
3280af22 | 11106 | if (d - PL_tokenbuf != len) { |
79072805 LW |
11107 | yylval.ival = OP_GLOB; |
11108 | set_csh(); | |
5db06880 | 11109 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 11110 | if (!s) |
cea2e8a9 | 11111 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
11112 | return s; |
11113 | } | |
395c3793 | 11114 | else { |
9b3023bc | 11115 | bool readline_overriden = FALSE; |
6136c704 | 11116 | GV *gv_readline; |
9b3023bc | 11117 | GV **gvp; |
02aa26ce | 11118 | /* we're in a filehandle read situation */ |
3280af22 | 11119 | d = PL_tokenbuf; |
02aa26ce NT |
11120 | |
11121 | /* turn <> into <ARGV> */ | |
79072805 | 11122 | if (!len) |
689badd5 | 11123 | Copy("ARGV",d,5,char); |
02aa26ce | 11124 | |
9b3023bc | 11125 | /* Check whether readline() is overriden */ |
fafc274c | 11126 | gv_readline = gv_fetchpvs("readline", GV_NOTQUAL, SVt_PVCV); |
6136c704 | 11127 | if ((gv_readline |
ba979b31 | 11128 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) |
9b3023bc | 11129 | || |
017a3ce5 | 11130 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE)) |
9b3023bc | 11131 | && (gv_readline = *gvp) != (GV*)&PL_sv_undef |
ba979b31 | 11132 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
11133 | readline_overriden = TRUE; |
11134 | ||
02aa26ce NT |
11135 | /* if <$fh>, create the ops to turn the variable into a |
11136 | filehandle | |
11137 | */ | |
79072805 | 11138 | if (*d == '$') { |
a0d0e21e | 11139 | I32 tmp; |
02aa26ce NT |
11140 | |
11141 | /* try to find it in the pad for this block, otherwise find | |
11142 | add symbol table ops | |
11143 | */ | |
11343788 | 11144 | if ((tmp = pad_findmy(d)) != NOT_IN_PAD) { |
00b1698f | 11145 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
6136c704 AL |
11146 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
11147 | HEK * const stashname = HvNAME_HEK(stash); | |
11148 | SV * const sym = sv_2mortal(newSVhek(stashname)); | |
396482e1 | 11149 | sv_catpvs(sym, "::"); |
f558d5af JH |
11150 | sv_catpv(sym, d+1); |
11151 | d = SvPVX(sym); | |
11152 | goto intro_sym; | |
11153 | } | |
11154 | else { | |
6136c704 | 11155 | OP * const o = newOP(OP_PADSV, 0); |
f558d5af | 11156 | o->op_targ = tmp; |
9b3023bc RGS |
11157 | PL_lex_op = readline_overriden |
11158 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11159 | append_elem(OP_LIST, o, | |
11160 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
11161 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 11162 | } |
a0d0e21e LW |
11163 | } |
11164 | else { | |
f558d5af JH |
11165 | GV *gv; |
11166 | ++d; | |
11167 | intro_sym: | |
11168 | gv = gv_fetchpv(d, | |
11169 | (PL_in_eval | |
11170 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 11171 | : GV_ADDMULTI), |
f558d5af | 11172 | SVt_PV); |
9b3023bc RGS |
11173 | PL_lex_op = readline_overriden |
11174 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11175 | append_elem(OP_LIST, | |
11176 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
11177 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11178 | : (OP*)newUNOP(OP_READLINE, 0, | |
11179 | newUNOP(OP_RV2SV, 0, | |
11180 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 11181 | } |
7c6fadd6 RGS |
11182 | if (!readline_overriden) |
11183 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
f5284f61 | 11184 | /* we created the ops in PL_lex_op, so make yylval.ival a null op */ |
79072805 LW |
11185 | yylval.ival = OP_NULL; |
11186 | } | |
02aa26ce NT |
11187 | |
11188 | /* If it's none of the above, it must be a literal filehandle | |
11189 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 11190 | else { |
6136c704 | 11191 | GV * const gv = gv_fetchpv(d, GV_ADD, SVt_PVIO); |
9b3023bc RGS |
11192 | PL_lex_op = readline_overriden |
11193 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11194 | append_elem(OP_LIST, | |
11195 | newGVOP(OP_GV, 0, gv), | |
11196 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11197 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
79072805 LW |
11198 | yylval.ival = OP_NULL; |
11199 | } | |
11200 | } | |
02aa26ce | 11201 | |
79072805 LW |
11202 | return s; |
11203 | } | |
11204 | ||
02aa26ce NT |
11205 | |
11206 | /* scan_str | |
11207 | takes: start position in buffer | |
09bef843 SB |
11208 | keep_quoted preserve \ on the embedded delimiter(s) |
11209 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
11210 | returns: position to continue reading from buffer |
11211 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
11212 | updates the read buffer. | |
11213 | ||
11214 | This subroutine pulls a string out of the input. It is called for: | |
11215 | q single quotes q(literal text) | |
11216 | ' single quotes 'literal text' | |
11217 | qq double quotes qq(interpolate $here please) | |
11218 | " double quotes "interpolate $here please" | |
11219 | qx backticks qx(/bin/ls -l) | |
11220 | ` backticks `/bin/ls -l` | |
11221 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
11222 | m// regexp match m/this/ | |
11223 | s/// regexp substitute s/this/that/ | |
11224 | tr/// string transliterate tr/this/that/ | |
11225 | y/// string transliterate y/this/that/ | |
11226 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 11227 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
11228 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
11229 | ||
11230 | In most of these cases (all but <>, patterns and transliterate) | |
11231 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
11232 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
11233 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
11234 | calls scan_str(). | |
4e553d73 | 11235 | |
02aa26ce NT |
11236 | It skips whitespace before the string starts, and treats the first |
11237 | character as the delimiter. If the delimiter is one of ([{< then | |
11238 | the corresponding "close" character )]}> is used as the closing | |
11239 | delimiter. It allows quoting of delimiters, and if the string has | |
11240 | balanced delimiters ([{<>}]) it allows nesting. | |
11241 | ||
37fd879b HS |
11242 | On success, the SV with the resulting string is put into lex_stuff or, |
11243 | if that is already non-NULL, into lex_repl. The second case occurs only | |
11244 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
11245 | For convenience, the terminating delimiter character is stuffed into | |
11246 | SvIVX of the SV. | |
02aa26ce NT |
11247 | */ |
11248 | ||
76e3520e | 11249 | STATIC char * |
09bef843 | 11250 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 11251 | { |
97aff369 | 11252 | dVAR; |
02aa26ce NT |
11253 | SV *sv; /* scalar value: string */ |
11254 | char *tmps; /* temp string, used for delimiter matching */ | |
11255 | register char *s = start; /* current position in the buffer */ | |
11256 | register char term; /* terminating character */ | |
11257 | register char *to; /* current position in the sv's data */ | |
11258 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 11259 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
220e2d4e | 11260 | I32 termcode; /* terminating char. code */ |
89ebb4a3 | 11261 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
220e2d4e IH |
11262 | STRLEN termlen; /* length of terminating string */ |
11263 | char *last = NULL; /* last position for nesting bracket */ | |
5db06880 NC |
11264 | #ifdef PERL_MAD |
11265 | int stuffstart; | |
11266 | char *tstart; | |
11267 | #endif | |
02aa26ce NT |
11268 | |
11269 | /* skip space before the delimiter */ | |
29595ff2 NC |
11270 | if (isSPACE(*s)) { |
11271 | s = PEEKSPACE(s); | |
11272 | } | |
02aa26ce | 11273 | |
5db06880 | 11274 | #ifdef PERL_MAD |
cd81e915 NC |
11275 | if (PL_realtokenstart >= 0) { |
11276 | stuffstart = PL_realtokenstart; | |
11277 | PL_realtokenstart = -1; | |
5db06880 NC |
11278 | } |
11279 | else | |
11280 | stuffstart = start - SvPVX(PL_linestr); | |
11281 | #endif | |
02aa26ce | 11282 | /* mark where we are, in case we need to report errors */ |
79072805 | 11283 | CLINE; |
02aa26ce NT |
11284 | |
11285 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 11286 | term = *s; |
220e2d4e IH |
11287 | if (!UTF) { |
11288 | termcode = termstr[0] = term; | |
11289 | termlen = 1; | |
11290 | } | |
11291 | else { | |
f3b9ce0f | 11292 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
220e2d4e IH |
11293 | Copy(s, termstr, termlen, U8); |
11294 | if (!UTF8_IS_INVARIANT(term)) | |
11295 | has_utf8 = TRUE; | |
11296 | } | |
b1c7b182 | 11297 | |
02aa26ce | 11298 | /* mark where we are */ |
57843af0 | 11299 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 11300 | PL_multi_open = term; |
02aa26ce NT |
11301 | |
11302 | /* find corresponding closing delimiter */ | |
93a17b20 | 11303 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
220e2d4e IH |
11304 | termcode = termstr[0] = term = tmps[5]; |
11305 | ||
3280af22 | 11306 | PL_multi_close = term; |
79072805 | 11307 | |
561b68a9 SH |
11308 | /* create a new SV to hold the contents. 79 is the SV's initial length. |
11309 | What a random number. */ | |
11310 | sv = newSV(79); | |
ed6116ce | 11311 | sv_upgrade(sv, SVt_PVIV); |
45977657 | 11312 | SvIV_set(sv, termcode); |
a0d0e21e | 11313 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
11314 | |
11315 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 11316 | if (keep_delims) |
220e2d4e IH |
11317 | sv_catpvn(sv, s, termlen); |
11318 | s += termlen; | |
5db06880 NC |
11319 | #ifdef PERL_MAD |
11320 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11321 | if (!PL_thisopen && !keep_delims) { |
11322 | PL_thisopen = newSVpvn(tstart, s - tstart); | |
5db06880 NC |
11323 | stuffstart = s - SvPVX(PL_linestr); |
11324 | } | |
11325 | #endif | |
93a17b20 | 11326 | for (;;) { |
220e2d4e IH |
11327 | if (PL_encoding && !UTF) { |
11328 | bool cont = TRUE; | |
11329 | ||
11330 | while (cont) { | |
95a20fc0 | 11331 | int offset = s - SvPVX_const(PL_linestr); |
66a1b24b | 11332 | const bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f3b9ce0f | 11333 | &offset, (char*)termstr, termlen); |
6136c704 AL |
11334 | const char * const ns = SvPVX_const(PL_linestr) + offset; |
11335 | char * const svlast = SvEND(sv) - 1; | |
220e2d4e IH |
11336 | |
11337 | for (; s < ns; s++) { | |
11338 | if (*s == '\n' && !PL_rsfp) | |
11339 | CopLINE_inc(PL_curcop); | |
11340 | } | |
11341 | if (!found) | |
11342 | goto read_more_line; | |
11343 | else { | |
11344 | /* handle quoted delimiters */ | |
52327caf | 11345 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
f54cb97a | 11346 | const char *t; |
95a20fc0 | 11347 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
220e2d4e IH |
11348 | t--; |
11349 | if ((svlast-1 - t) % 2) { | |
11350 | if (!keep_quoted) { | |
11351 | *(svlast-1) = term; | |
11352 | *svlast = '\0'; | |
11353 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11354 | } | |
11355 | continue; | |
11356 | } | |
11357 | } | |
11358 | if (PL_multi_open == PL_multi_close) { | |
11359 | cont = FALSE; | |
11360 | } | |
11361 | else { | |
f54cb97a AL |
11362 | const char *t; |
11363 | char *w; | |
220e2d4e IH |
11364 | if (!last) |
11365 | last = SvPVX(sv); | |
f54cb97a | 11366 | for (t = w = last; t < svlast; w++, t++) { |
220e2d4e IH |
11367 | /* At here, all closes are "was quoted" one, |
11368 | so we don't check PL_multi_close. */ | |
11369 | if (*t == '\\') { | |
11370 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
11371 | t++; | |
11372 | else | |
11373 | *w++ = *t++; | |
11374 | } | |
11375 | else if (*t == PL_multi_open) | |
11376 | brackets++; | |
11377 | ||
11378 | *w = *t; | |
11379 | } | |
11380 | if (w < t) { | |
11381 | *w++ = term; | |
11382 | *w = '\0'; | |
95a20fc0 | 11383 | SvCUR_set(sv, w - SvPVX_const(sv)); |
220e2d4e IH |
11384 | } |
11385 | last = w; | |
11386 | if (--brackets <= 0) | |
11387 | cont = FALSE; | |
11388 | } | |
11389 | } | |
11390 | } | |
11391 | if (!keep_delims) { | |
11392 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11393 | *SvEND(sv) = '\0'; | |
11394 | } | |
11395 | break; | |
11396 | } | |
11397 | ||
02aa26ce | 11398 | /* extend sv if need be */ |
3280af22 | 11399 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 11400 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 11401 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 11402 | |
02aa26ce | 11403 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
11404 | if (PL_multi_open == PL_multi_close) { |
11405 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 11406 | /* embedded newlines increment the current line number */ |
3280af22 | 11407 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11408 | CopLINE_inc(PL_curcop); |
02aa26ce | 11409 | /* handle quoted delimiters */ |
3280af22 | 11410 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 11411 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 11412 | s++; |
02aa26ce | 11413 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
11414 | else |
11415 | *to++ = *s++; | |
11416 | } | |
02aa26ce NT |
11417 | /* terminate when run out of buffer (the for() condition), or |
11418 | have found the terminator */ | |
220e2d4e IH |
11419 | else if (*s == term) { |
11420 | if (termlen == 1) | |
11421 | break; | |
f3b9ce0f | 11422 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
220e2d4e IH |
11423 | break; |
11424 | } | |
63cd0674 | 11425 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11426 | has_utf8 = TRUE; |
93a17b20 LW |
11427 | *to = *s; |
11428 | } | |
11429 | } | |
02aa26ce NT |
11430 | |
11431 | /* if the terminator isn't the same as the start character (e.g., | |
11432 | matched brackets), we have to allow more in the quoting, and | |
11433 | be prepared for nested brackets. | |
11434 | */ | |
93a17b20 | 11435 | else { |
02aa26ce | 11436 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 11437 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 11438 | /* embedded newlines increment the line count */ |
3280af22 | 11439 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11440 | CopLINE_inc(PL_curcop); |
02aa26ce | 11441 | /* backslashes can escape the open or closing characters */ |
3280af22 | 11442 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
11443 | if (!keep_quoted && |
11444 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
11445 | s++; |
11446 | else | |
11447 | *to++ = *s++; | |
11448 | } | |
02aa26ce | 11449 | /* allow nested opens and closes */ |
3280af22 | 11450 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 11451 | break; |
3280af22 | 11452 | else if (*s == PL_multi_open) |
93a17b20 | 11453 | brackets++; |
63cd0674 | 11454 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11455 | has_utf8 = TRUE; |
93a17b20 LW |
11456 | *to = *s; |
11457 | } | |
11458 | } | |
02aa26ce | 11459 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 11460 | *to = '\0'; |
95a20fc0 | 11461 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 11462 | |
02aa26ce NT |
11463 | /* |
11464 | * this next chunk reads more into the buffer if we're not done yet | |
11465 | */ | |
11466 | ||
b1c7b182 GS |
11467 | if (s < PL_bufend) |
11468 | break; /* handle case where we are done yet :-) */ | |
79072805 | 11469 | |
6a27c188 | 11470 | #ifndef PERL_STRICT_CR |
95a20fc0 | 11471 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
11472 | if ((to[-2] == '\r' && to[-1] == '\n') || |
11473 | (to[-2] == '\n' && to[-1] == '\r')) | |
11474 | { | |
f63a84b2 LW |
11475 | to[-2] = '\n'; |
11476 | to--; | |
95a20fc0 | 11477 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
11478 | } |
11479 | else if (to[-1] == '\r') | |
11480 | to[-1] = '\n'; | |
11481 | } | |
95a20fc0 | 11482 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
11483 | to[-1] = '\n'; |
11484 | #endif | |
11485 | ||
220e2d4e | 11486 | read_more_line: |
02aa26ce NT |
11487 | /* if we're out of file, or a read fails, bail and reset the current |
11488 | line marker so we can report where the unterminated string began | |
11489 | */ | |
5db06880 NC |
11490 | #ifdef PERL_MAD |
11491 | if (PL_madskills) { | |
11492 | char *tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11493 | if (PL_thisstuff) |
11494 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11495 | else |
cd81e915 | 11496 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11497 | } |
11498 | #endif | |
3280af22 NIS |
11499 | if (!PL_rsfp || |
11500 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { | |
c07a80fd | 11501 | sv_free(sv); |
eb160463 | 11502 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
bd61b366 | 11503 | return NULL; |
79072805 | 11504 | } |
5db06880 NC |
11505 | #ifdef PERL_MAD |
11506 | stuffstart = 0; | |
11507 | #endif | |
02aa26ce | 11508 | /* we read a line, so increment our line counter */ |
57843af0 | 11509 | CopLINE_inc(PL_curcop); |
a0ed51b3 | 11510 | |
02aa26ce | 11511 | /* update debugger info */ |
3280af22 | 11512 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
5f66b61c | 11513 | SV * const line_sv = newSV(0); |
79072805 | 11514 | |
5f66b61c AL |
11515 | sv_upgrade(line_sv, SVt_PVMG); |
11516 | sv_setsv(line_sv,PL_linestr); | |
11517 | (void)SvIOK_on(line_sv); | |
11518 | SvIV_set(line_sv, 0); | |
11519 | av_store(CopFILEAVx(PL_curcop), (I32)CopLINE(PL_curcop), line_sv); | |
395c3793 | 11520 | } |
a0ed51b3 | 11521 | |
3280af22 NIS |
11522 | /* having changed the buffer, we must update PL_bufend */ |
11523 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11524 | PL_last_lop = PL_last_uni = NULL; |
378cc40b | 11525 | } |
4e553d73 | 11526 | |
02aa26ce NT |
11527 | /* at this point, we have successfully read the delimited string */ |
11528 | ||
220e2d4e | 11529 | if (!PL_encoding || UTF) { |
5db06880 NC |
11530 | #ifdef PERL_MAD |
11531 | if (PL_madskills) { | |
11532 | char *tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11533 | if (PL_thisstuff) |
11534 | sv_catpvn(PL_thisstuff, tstart, s - tstart); | |
5db06880 | 11535 | else |
cd81e915 NC |
11536 | PL_thisstuff = newSVpvn(tstart, s - tstart); |
11537 | if (!PL_thisclose && !keep_delims) | |
11538 | PL_thisclose = newSVpvn(s,termlen); | |
5db06880 NC |
11539 | } |
11540 | #endif | |
11541 | ||
220e2d4e IH |
11542 | if (keep_delims) |
11543 | sv_catpvn(sv, s, termlen); | |
11544 | s += termlen; | |
11545 | } | |
5db06880 NC |
11546 | #ifdef PERL_MAD |
11547 | else { | |
11548 | if (PL_madskills) { | |
11549 | char *tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11550 | if (PL_thisstuff) |
11551 | sv_catpvn(PL_thisstuff, tstart, s - tstart - termlen); | |
5db06880 | 11552 | else |
cd81e915 NC |
11553 | PL_thisstuff = newSVpvn(tstart, s - tstart - termlen); |
11554 | if (!PL_thisclose && !keep_delims) | |
11555 | PL_thisclose = newSVpvn(s - termlen,termlen); | |
5db06880 NC |
11556 | } |
11557 | } | |
11558 | #endif | |
220e2d4e | 11559 | if (has_utf8 || PL_encoding) |
b1c7b182 | 11560 | SvUTF8_on(sv); |
d0063567 | 11561 | |
57843af0 | 11562 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
11563 | |
11564 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
11565 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
11566 | SvLEN_set(sv, SvCUR(sv) + 1); | |
b7e9a5c2 | 11567 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 11568 | } |
02aa26ce NT |
11569 | |
11570 | /* decide whether this is the first or second quoted string we've read | |
11571 | for this op | |
11572 | */ | |
4e553d73 | 11573 | |
3280af22 NIS |
11574 | if (PL_lex_stuff) |
11575 | PL_lex_repl = sv; | |
79072805 | 11576 | else |
3280af22 | 11577 | PL_lex_stuff = sv; |
378cc40b LW |
11578 | return s; |
11579 | } | |
11580 | ||
02aa26ce NT |
11581 | /* |
11582 | scan_num | |
11583 | takes: pointer to position in buffer | |
11584 | returns: pointer to new position in buffer | |
11585 | side-effects: builds ops for the constant in yylval.op | |
11586 | ||
11587 | Read a number in any of the formats that Perl accepts: | |
11588 | ||
7fd134d9 JH |
11589 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
11590 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
11591 | 0b[01](_?[01])* |
11592 | 0[0-7](_?[0-7])* | |
11593 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 11594 | |
3280af22 | 11595 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
11596 | thing it reads. |
11597 | ||
11598 | If it reads a number without a decimal point or an exponent, it will | |
11599 | try converting the number to an integer and see if it can do so | |
11600 | without loss of precision. | |
11601 | */ | |
4e553d73 | 11602 | |
378cc40b | 11603 | char * |
bfed75c6 | 11604 | Perl_scan_num(pTHX_ const char *start, YYSTYPE* lvalp) |
378cc40b | 11605 | { |
97aff369 | 11606 | dVAR; |
bfed75c6 | 11607 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
11608 | register char *d; /* destination in temp buffer */ |
11609 | register char *e; /* end of temp buffer */ | |
86554af2 | 11610 | NV nv; /* number read, as a double */ |
a0714e2c | 11611 | SV *sv = NULL; /* place to put the converted number */ |
a86a20aa | 11612 | bool floatit; /* boolean: int or float? */ |
cbbf8932 | 11613 | const char *lastub = NULL; /* position of last underbar */ |
bfed75c6 | 11614 | static char const number_too_long[] = "Number too long"; |
378cc40b | 11615 | |
02aa26ce NT |
11616 | /* We use the first character to decide what type of number this is */ |
11617 | ||
378cc40b | 11618 | switch (*s) { |
79072805 | 11619 | default: |
cea2e8a9 | 11620 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 11621 | |
02aa26ce | 11622 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 11623 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
11624 | case '0': |
11625 | { | |
02aa26ce NT |
11626 | /* variables: |
11627 | u holds the "number so far" | |
4f19785b WSI |
11628 | shift the power of 2 of the base |
11629 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
11630 | overflowed was the number more than we can hold? |
11631 | ||
11632 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
11633 | we in octal/hex/binary?" indicator to disallow hex characters |
11634 | when in octal mode. | |
02aa26ce | 11635 | */ |
9e24b6e2 JH |
11636 | NV n = 0.0; |
11637 | UV u = 0; | |
79072805 | 11638 | I32 shift; |
9e24b6e2 | 11639 | bool overflowed = FALSE; |
61f33854 | 11640 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
27da23d5 JH |
11641 | static const NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
11642 | static const char* const bases[5] = | |
11643 | { "", "binary", "", "octal", "hexadecimal" }; | |
11644 | static const char* const Bases[5] = | |
11645 | { "", "Binary", "", "Octal", "Hexadecimal" }; | |
11646 | static const char* const maxima[5] = | |
11647 | { "", | |
11648 | "0b11111111111111111111111111111111", | |
11649 | "", | |
11650 | "037777777777", | |
11651 | "0xffffffff" }; | |
bfed75c6 | 11652 | const char *base, *Base, *max; |
378cc40b | 11653 | |
02aa26ce | 11654 | /* check for hex */ |
378cc40b LW |
11655 | if (s[1] == 'x') { |
11656 | shift = 4; | |
11657 | s += 2; | |
61f33854 | 11658 | just_zero = FALSE; |
4f19785b WSI |
11659 | } else if (s[1] == 'b') { |
11660 | shift = 1; | |
11661 | s += 2; | |
61f33854 | 11662 | just_zero = FALSE; |
378cc40b | 11663 | } |
02aa26ce | 11664 | /* check for a decimal in disguise */ |
b78218b7 | 11665 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 11666 | goto decimal; |
02aa26ce | 11667 | /* so it must be octal */ |
928753ea | 11668 | else { |
378cc40b | 11669 | shift = 3; |
928753ea JH |
11670 | s++; |
11671 | } | |
11672 | ||
11673 | if (*s == '_') { | |
11674 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11675 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11676 | "Misplaced _ in number"); |
11677 | lastub = s++; | |
11678 | } | |
9e24b6e2 JH |
11679 | |
11680 | base = bases[shift]; | |
11681 | Base = Bases[shift]; | |
11682 | max = maxima[shift]; | |
02aa26ce | 11683 | |
4f19785b | 11684 | /* read the rest of the number */ |
378cc40b | 11685 | for (;;) { |
9e24b6e2 | 11686 | /* x is used in the overflow test, |
893fe2c2 | 11687 | b is the digit we're adding on. */ |
9e24b6e2 | 11688 | UV x, b; |
55497cff | 11689 | |
378cc40b | 11690 | switch (*s) { |
02aa26ce NT |
11691 | |
11692 | /* if we don't mention it, we're done */ | |
378cc40b LW |
11693 | default: |
11694 | goto out; | |
02aa26ce | 11695 | |
928753ea | 11696 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 11697 | case '_': |
041457d9 | 11698 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 11699 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11700 | "Misplaced _ in number"); |
11701 | lastub = s++; | |
de3bb511 | 11702 | break; |
02aa26ce NT |
11703 | |
11704 | /* 8 and 9 are not octal */ | |
378cc40b | 11705 | case '8': case '9': |
4f19785b | 11706 | if (shift == 3) |
cea2e8a9 | 11707 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 11708 | /* FALL THROUGH */ |
02aa26ce NT |
11709 | |
11710 | /* octal digits */ | |
4f19785b | 11711 | case '2': case '3': case '4': |
378cc40b | 11712 | case '5': case '6': case '7': |
4f19785b | 11713 | if (shift == 1) |
cea2e8a9 | 11714 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
11715 | /* FALL THROUGH */ |
11716 | ||
11717 | case '0': case '1': | |
02aa26ce | 11718 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 11719 | goto digit; |
02aa26ce NT |
11720 | |
11721 | /* hex digits */ | |
378cc40b LW |
11722 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
11723 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 11724 | /* make sure they said 0x */ |
378cc40b LW |
11725 | if (shift != 4) |
11726 | goto out; | |
55497cff | 11727 | b = (*s++ & 7) + 9; |
02aa26ce NT |
11728 | |
11729 | /* Prepare to put the digit we have onto the end | |
11730 | of the number so far. We check for overflows. | |
11731 | */ | |
11732 | ||
55497cff | 11733 | digit: |
61f33854 | 11734 | just_zero = FALSE; |
9e24b6e2 JH |
11735 | if (!overflowed) { |
11736 | x = u << shift; /* make room for the digit */ | |
11737 | ||
11738 | if ((x >> shift) != u | |
11739 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
11740 | overflowed = TRUE; |
11741 | n = (NV) u; | |
767a6a26 | 11742 | if (ckWARN_d(WARN_OVERFLOW)) |
9014280d | 11743 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), |
9e24b6e2 JH |
11744 | "Integer overflow in %s number", |
11745 | base); | |
11746 | } else | |
11747 | u = x | b; /* add the digit to the end */ | |
11748 | } | |
11749 | if (overflowed) { | |
11750 | n *= nvshift[shift]; | |
11751 | /* If an NV has not enough bits in its | |
11752 | * mantissa to represent an UV this summing of | |
11753 | * small low-order numbers is a waste of time | |
11754 | * (because the NV cannot preserve the | |
11755 | * low-order bits anyway): we could just | |
11756 | * remember when did we overflow and in the | |
11757 | * end just multiply n by the right | |
11758 | * amount. */ | |
11759 | n += (NV) b; | |
55497cff | 11760 | } |
378cc40b LW |
11761 | break; |
11762 | } | |
11763 | } | |
02aa26ce NT |
11764 | |
11765 | /* if we get here, we had success: make a scalar value from | |
11766 | the number. | |
11767 | */ | |
378cc40b | 11768 | out: |
928753ea JH |
11769 | |
11770 | /* final misplaced underbar check */ | |
11771 | if (s[-1] == '_') { | |
11772 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11773 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
11774 | } |
11775 | ||
561b68a9 | 11776 | sv = newSV(0); |
9e24b6e2 | 11777 | if (overflowed) { |
041457d9 | 11778 | if (n > 4294967295.0 && ckWARN(WARN_PORTABLE)) |
9014280d | 11779 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
11780 | "%s number > %s non-portable", |
11781 | Base, max); | |
11782 | sv_setnv(sv, n); | |
11783 | } | |
11784 | else { | |
15041a67 | 11785 | #if UVSIZE > 4 |
041457d9 | 11786 | if (u > 0xffffffff && ckWARN(WARN_PORTABLE)) |
9014280d | 11787 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
11788 | "%s number > %s non-portable", |
11789 | Base, max); | |
2cc4c2dc | 11790 | #endif |
9e24b6e2 JH |
11791 | sv_setuv(sv, u); |
11792 | } | |
61f33854 | 11793 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
bfed75c6 | 11794 | sv = new_constant(start, s - start, "integer", |
a0714e2c | 11795 | sv, NULL, NULL); |
61f33854 | 11796 | else if (PL_hints & HINT_NEW_BINARY) |
a0714e2c | 11797 | sv = new_constant(start, s - start, "binary", sv, NULL, NULL); |
378cc40b LW |
11798 | } |
11799 | break; | |
02aa26ce NT |
11800 | |
11801 | /* | |
11802 | handle decimal numbers. | |
11803 | we're also sent here when we read a 0 as the first digit | |
11804 | */ | |
378cc40b LW |
11805 | case '1': case '2': case '3': case '4': case '5': |
11806 | case '6': case '7': case '8': case '9': case '.': | |
11807 | decimal: | |
3280af22 NIS |
11808 | d = PL_tokenbuf; |
11809 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 11810 | floatit = FALSE; |
02aa26ce NT |
11811 | |
11812 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 11813 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 11814 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
11815 | if -w is on |
11816 | */ | |
93a17b20 | 11817 | if (*s == '_') { |
041457d9 | 11818 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 11819 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11820 | "Misplaced _ in number"); |
11821 | lastub = s++; | |
93a17b20 | 11822 | } |
fc36a67e | 11823 | else { |
02aa26ce | 11824 | /* check for end of fixed-length buffer */ |
fc36a67e | 11825 | if (d >= e) |
cea2e8a9 | 11826 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 11827 | /* if we're ok, copy the character */ |
378cc40b | 11828 | *d++ = *s++; |
fc36a67e | 11829 | } |
378cc40b | 11830 | } |
02aa26ce NT |
11831 | |
11832 | /* final misplaced underbar check */ | |
928753ea | 11833 | if (lastub && s == lastub + 1) { |
d008e5eb | 11834 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 11835 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 11836 | } |
02aa26ce NT |
11837 | |
11838 | /* read a decimal portion if there is one. avoid | |
11839 | 3..5 being interpreted as the number 3. followed | |
11840 | by .5 | |
11841 | */ | |
2f3197b3 | 11842 | if (*s == '.' && s[1] != '.') { |
79072805 | 11843 | floatit = TRUE; |
378cc40b | 11844 | *d++ = *s++; |
02aa26ce | 11845 | |
928753ea JH |
11846 | if (*s == '_') { |
11847 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11848 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11849 | "Misplaced _ in number"); |
11850 | lastub = s; | |
11851 | } | |
11852 | ||
11853 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 11854 | */ |
fc36a67e | 11855 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 11856 | /* fixed length buffer check */ |
fc36a67e | 11857 | if (d >= e) |
cea2e8a9 | 11858 | Perl_croak(aTHX_ number_too_long); |
928753ea | 11859 | if (*s == '_') { |
041457d9 | 11860 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 11861 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11862 | "Misplaced _ in number"); |
11863 | lastub = s; | |
11864 | } | |
11865 | else | |
fc36a67e | 11866 | *d++ = *s; |
378cc40b | 11867 | } |
928753ea JH |
11868 | /* fractional part ending in underbar? */ |
11869 | if (s[-1] == '_') { | |
11870 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11871 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11872 | "Misplaced _ in number"); |
11873 | } | |
dd629d5b GS |
11874 | if (*s == '.' && isDIGIT(s[1])) { |
11875 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 11876 | s = start; |
dd629d5b GS |
11877 | goto vstring; |
11878 | } | |
378cc40b | 11879 | } |
02aa26ce NT |
11880 | |
11881 | /* read exponent part, if present */ | |
3792a11b | 11882 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
11883 | floatit = TRUE; |
11884 | s++; | |
02aa26ce NT |
11885 | |
11886 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 11887 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 11888 | |
7fd134d9 JH |
11889 | /* stray preinitial _ */ |
11890 | if (*s == '_') { | |
11891 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11892 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
11893 | "Misplaced _ in number"); |
11894 | lastub = s++; | |
11895 | } | |
11896 | ||
02aa26ce | 11897 | /* allow positive or negative exponent */ |
378cc40b LW |
11898 | if (*s == '+' || *s == '-') |
11899 | *d++ = *s++; | |
02aa26ce | 11900 | |
7fd134d9 JH |
11901 | /* stray initial _ */ |
11902 | if (*s == '_') { | |
11903 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11904 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
11905 | "Misplaced _ in number"); |
11906 | lastub = s++; | |
11907 | } | |
11908 | ||
7fd134d9 JH |
11909 | /* read digits of exponent */ |
11910 | while (isDIGIT(*s) || *s == '_') { | |
11911 | if (isDIGIT(*s)) { | |
11912 | if (d >= e) | |
11913 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 11914 | *d++ = *s++; |
7fd134d9 JH |
11915 | } |
11916 | else { | |
041457d9 DM |
11917 | if (((lastub && s == lastub + 1) || |
11918 | (!isDIGIT(s[1]) && s[1] != '_')) | |
11919 | && ckWARN(WARN_SYNTAX)) | |
9014280d | 11920 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 | 11921 | "Misplaced _ in number"); |
b3b48e3e | 11922 | lastub = s++; |
7fd134d9 | 11923 | } |
7fd134d9 | 11924 | } |
378cc40b | 11925 | } |
02aa26ce | 11926 | |
02aa26ce NT |
11927 | |
11928 | /* make an sv from the string */ | |
561b68a9 | 11929 | sv = newSV(0); |
097ee67d | 11930 | |
0b7fceb9 | 11931 | /* |
58bb9ec3 NC |
11932 | We try to do an integer conversion first if no characters |
11933 | indicating "float" have been found. | |
0b7fceb9 MU |
11934 | */ |
11935 | ||
11936 | if (!floatit) { | |
58bb9ec3 | 11937 | UV uv; |
6136c704 | 11938 | const int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); |
58bb9ec3 NC |
11939 | |
11940 | if (flags == IS_NUMBER_IN_UV) { | |
11941 | if (uv <= IV_MAX) | |
86554af2 | 11942 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 11943 | else |
c239479b | 11944 | sv_setuv(sv, uv); |
58bb9ec3 NC |
11945 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
11946 | if (uv <= (UV) IV_MIN) | |
11947 | sv_setiv(sv, -(IV)uv); | |
11948 | else | |
11949 | floatit = TRUE; | |
11950 | } else | |
11951 | floatit = TRUE; | |
11952 | } | |
0b7fceb9 | 11953 | if (floatit) { |
58bb9ec3 NC |
11954 | /* terminate the string */ |
11955 | *d = '\0'; | |
86554af2 JH |
11956 | nv = Atof(PL_tokenbuf); |
11957 | sv_setnv(sv, nv); | |
11958 | } | |
86554af2 | 11959 | |
b8403495 JH |
11960 | if ( floatit ? (PL_hints & HINT_NEW_FLOAT) : |
11961 | (PL_hints & HINT_NEW_INTEGER) ) | |
4e553d73 | 11962 | sv = new_constant(PL_tokenbuf, d - PL_tokenbuf, |
b8403495 | 11963 | (floatit ? "float" : "integer"), |
a0714e2c | 11964 | sv, NULL, NULL); |
378cc40b | 11965 | break; |
0b7fceb9 | 11966 | |
e312add1 | 11967 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 11968 | case 'v': |
dd629d5b | 11969 | vstring: |
561b68a9 | 11970 | sv = newSV(5); /* preallocate storage space */ |
b0f01acb | 11971 | s = scan_vstring(s,sv); |
a7cb1f99 | 11972 | break; |
79072805 | 11973 | } |
a687059c | 11974 | |
02aa26ce NT |
11975 | /* make the op for the constant and return */ |
11976 | ||
a86a20aa | 11977 | if (sv) |
b73d6f50 | 11978 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 11979 | else |
5f66b61c | 11980 | lvalp->opval = NULL; |
a687059c | 11981 | |
73d840c0 | 11982 | return (char *)s; |
378cc40b LW |
11983 | } |
11984 | ||
76e3520e | 11985 | STATIC char * |
cea2e8a9 | 11986 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 11987 | { |
97aff369 | 11988 | dVAR; |
79072805 | 11989 | register char *eol; |
378cc40b | 11990 | register char *t; |
6136c704 | 11991 | SV * const stuff = newSVpvs(""); |
79072805 | 11992 | bool needargs = FALSE; |
c5ee2135 | 11993 | bool eofmt = FALSE; |
5db06880 NC |
11994 | #ifdef PERL_MAD |
11995 | char *tokenstart = s; | |
11996 | SV* savewhite; | |
11997 | ||
11998 | if (PL_madskills) { | |
cd81e915 NC |
11999 | savewhite = PL_thiswhite; |
12000 | PL_thiswhite = 0; | |
5db06880 NC |
12001 | } |
12002 | #endif | |
378cc40b | 12003 | |
79072805 | 12004 | while (!needargs) { |
a1b95068 | 12005 | if (*s == '.') { |
51882d45 | 12006 | #ifdef PERL_STRICT_CR |
bf4acbe4 | 12007 | for (t = s+1;SPACE_OR_TAB(*t); t++) ; |
51882d45 | 12008 | #else |
bf4acbe4 | 12009 | for (t = s+1;SPACE_OR_TAB(*t) || *t == '\r'; t++) ; |
51882d45 | 12010 | #endif |
c5ee2135 WL |
12011 | if (*t == '\n' || t == PL_bufend) { |
12012 | eofmt = TRUE; | |
79072805 | 12013 | break; |
c5ee2135 | 12014 | } |
79072805 | 12015 | } |
3280af22 | 12016 | if (PL_in_eval && !PL_rsfp) { |
07409e01 | 12017 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 12018 | if (!eol++) |
3280af22 | 12019 | eol = PL_bufend; |
0f85fab0 LW |
12020 | } |
12021 | else | |
3280af22 | 12022 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 12023 | if (*s != '#') { |
a0d0e21e LW |
12024 | for (t = s; t < eol; t++) { |
12025 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
12026 | needargs = FALSE; | |
12027 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 12028 | } |
a0d0e21e LW |
12029 | if (*t == '@' || *t == '^') |
12030 | needargs = TRUE; | |
378cc40b | 12031 | } |
7121b347 MG |
12032 | if (eol > s) { |
12033 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 12034 | #ifndef PERL_STRICT_CR |
7121b347 MG |
12035 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
12036 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
12037 | end[-2] = '\n'; | |
12038 | end[-1] = '\0'; | |
b162af07 | 12039 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 12040 | } |
2dc4c65b | 12041 | #endif |
7121b347 MG |
12042 | } |
12043 | else | |
12044 | break; | |
79072805 | 12045 | } |
95a20fc0 | 12046 | s = (char*)eol; |
3280af22 | 12047 | if (PL_rsfp) { |
5db06880 NC |
12048 | #ifdef PERL_MAD |
12049 | if (PL_madskills) { | |
cd81e915 NC |
12050 | if (PL_thistoken) |
12051 | sv_catpvn(PL_thistoken, tokenstart, PL_bufend - tokenstart); | |
5db06880 | 12052 | else |
cd81e915 | 12053 | PL_thistoken = newSVpvn(tokenstart, PL_bufend - tokenstart); |
5db06880 NC |
12054 | } |
12055 | #endif | |
3280af22 | 12056 | s = filter_gets(PL_linestr, PL_rsfp, 0); |
5db06880 NC |
12057 | #ifdef PERL_MAD |
12058 | tokenstart = PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
12059 | #else | |
3280af22 | 12060 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); |
5db06880 | 12061 | #endif |
3280af22 | 12062 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); |
bd61b366 | 12063 | PL_last_lop = PL_last_uni = NULL; |
79072805 | 12064 | if (!s) { |
3280af22 | 12065 | s = PL_bufptr; |
378cc40b LW |
12066 | break; |
12067 | } | |
378cc40b | 12068 | } |
463ee0b2 | 12069 | incline(s); |
79072805 | 12070 | } |
a0d0e21e LW |
12071 | enough: |
12072 | if (SvCUR(stuff)) { | |
3280af22 | 12073 | PL_expect = XTERM; |
79072805 | 12074 | if (needargs) { |
3280af22 | 12075 | PL_lex_state = LEX_NORMAL; |
cd81e915 | 12076 | start_force(PL_curforce); |
9ded7720 | 12077 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 LW |
12078 | force_next(','); |
12079 | } | |
a0d0e21e | 12080 | else |
3280af22 | 12081 | PL_lex_state = LEX_FORMLINE; |
1bd51a4c | 12082 | if (!IN_BYTES) { |
95a20fc0 | 12083 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
1bd51a4c IH |
12084 | SvUTF8_on(stuff); |
12085 | else if (PL_encoding) | |
12086 | sv_recode_to_utf8(stuff, PL_encoding); | |
12087 | } | |
cd81e915 | 12088 | start_force(PL_curforce); |
9ded7720 | 12089 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 12090 | force_next(THING); |
cd81e915 | 12091 | start_force(PL_curforce); |
9ded7720 | 12092 | NEXTVAL_NEXTTOKE.ival = OP_FORMLINE; |
79072805 | 12093 | force_next(LSTOP); |
378cc40b | 12094 | } |
79072805 | 12095 | else { |
8990e307 | 12096 | SvREFCNT_dec(stuff); |
c5ee2135 WL |
12097 | if (eofmt) |
12098 | PL_lex_formbrack = 0; | |
3280af22 | 12099 | PL_bufptr = s; |
79072805 | 12100 | } |
5db06880 NC |
12101 | #ifdef PERL_MAD |
12102 | if (PL_madskills) { | |
cd81e915 NC |
12103 | if (PL_thistoken) |
12104 | sv_catpvn(PL_thistoken, tokenstart, s - tokenstart); | |
5db06880 | 12105 | else |
cd81e915 NC |
12106 | PL_thistoken = newSVpvn(tokenstart, s - tokenstart); |
12107 | PL_thiswhite = savewhite; | |
5db06880 NC |
12108 | } |
12109 | #endif | |
79072805 | 12110 | return s; |
378cc40b | 12111 | } |
a687059c | 12112 | |
76e3520e | 12113 | STATIC void |
cea2e8a9 | 12114 | S_set_csh(pTHX) |
a687059c | 12115 | { |
ae986130 | 12116 | #ifdef CSH |
97aff369 | 12117 | dVAR; |
3280af22 NIS |
12118 | if (!PL_cshlen) |
12119 | PL_cshlen = strlen(PL_cshname); | |
5f66b61c | 12120 | #else |
b2675967 | 12121 | #if defined(USE_ITHREADS) |
96a5add6 | 12122 | PERL_UNUSED_CONTEXT; |
ae986130 | 12123 | #endif |
b2675967 | 12124 | #endif |
a687059c | 12125 | } |
463ee0b2 | 12126 | |
ba6d6ac9 | 12127 | I32 |
864dbfa3 | 12128 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 12129 | { |
97aff369 | 12130 | dVAR; |
a3b680e6 | 12131 | const I32 oldsavestack_ix = PL_savestack_ix; |
6136c704 | 12132 | CV* const outsidecv = PL_compcv; |
8990e307 | 12133 | |
3280af22 NIS |
12134 | if (PL_compcv) { |
12135 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 12136 | } |
7766f137 | 12137 | SAVEI32(PL_subline); |
3280af22 | 12138 | save_item(PL_subname); |
3280af22 | 12139 | SAVESPTR(PL_compcv); |
3280af22 | 12140 | |
561b68a9 | 12141 | PL_compcv = (CV*)newSV(0); |
3280af22 NIS |
12142 | sv_upgrade((SV *)PL_compcv, is_format ? SVt_PVFM : SVt_PVCV); |
12143 | CvFLAGS(PL_compcv) |= flags; | |
12144 | ||
57843af0 | 12145 | PL_subline = CopLINE(PL_curcop); |
dd2155a4 | 12146 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
b37c2d43 | 12147 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc_simple(outsidecv); |
a3985cdc | 12148 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
748a9306 | 12149 | |
8990e307 LW |
12150 | return oldsavestack_ix; |
12151 | } | |
12152 | ||
084592ab CN |
12153 | #ifdef __SC__ |
12154 | #pragma segment Perl_yylex | |
12155 | #endif | |
8990e307 | 12156 | int |
bfed75c6 | 12157 | Perl_yywarn(pTHX_ const char *s) |
8990e307 | 12158 | { |
97aff369 | 12159 | dVAR; |
faef0170 | 12160 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 12161 | yyerror(s); |
faef0170 | 12162 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 12163 | return 0; |
8990e307 LW |
12164 | } |
12165 | ||
12166 | int | |
bfed75c6 | 12167 | Perl_yyerror(pTHX_ const char *s) |
463ee0b2 | 12168 | { |
97aff369 | 12169 | dVAR; |
bfed75c6 AL |
12170 | const char *where = NULL; |
12171 | const char *context = NULL; | |
68dc0745 | 12172 | int contlen = -1; |
46fc3d4c | 12173 | SV *msg; |
463ee0b2 | 12174 | |
3280af22 | 12175 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 12176 | where = "at EOF"; |
8bcfe651 TM |
12177 | else if (PL_oldoldbufptr && PL_bufptr > PL_oldoldbufptr && |
12178 | PL_bufptr - PL_oldoldbufptr < 200 && PL_oldoldbufptr != PL_oldbufptr && | |
12179 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12180 | /* |
12181 | Only for NetWare: | |
12182 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12183 | when the script has error such as not having the closing quotes like: | |
12184 | if ($var eq "value) | |
12185 | Checking of white spaces is anyway done in NetWare code. | |
12186 | */ | |
12187 | #ifndef NETWARE | |
3280af22 NIS |
12188 | while (isSPACE(*PL_oldoldbufptr)) |
12189 | PL_oldoldbufptr++; | |
f355267c | 12190 | #endif |
3280af22 NIS |
12191 | context = PL_oldoldbufptr; |
12192 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 12193 | } |
8bcfe651 TM |
12194 | else if (PL_oldbufptr && PL_bufptr > PL_oldbufptr && |
12195 | PL_bufptr - PL_oldbufptr < 200 && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12196 | /* |
12197 | Only for NetWare: | |
12198 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12199 | when the script has error such as not having the closing quotes like: | |
12200 | if ($var eq "value) | |
12201 | Checking of white spaces is anyway done in NetWare code. | |
12202 | */ | |
12203 | #ifndef NETWARE | |
3280af22 NIS |
12204 | while (isSPACE(*PL_oldbufptr)) |
12205 | PL_oldbufptr++; | |
f355267c | 12206 | #endif |
3280af22 NIS |
12207 | context = PL_oldbufptr; |
12208 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
12209 | } |
12210 | else if (yychar > 255) | |
68dc0745 | 12211 | where = "next token ???"; |
12fbd33b | 12212 | else if (yychar == -2) { /* YYEMPTY */ |
3280af22 NIS |
12213 | if (PL_lex_state == LEX_NORMAL || |
12214 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 12215 | where = "at end of line"; |
3280af22 | 12216 | else if (PL_lex_inpat) |
68dc0745 | 12217 | where = "within pattern"; |
463ee0b2 | 12218 | else |
68dc0745 | 12219 | where = "within string"; |
463ee0b2 | 12220 | } |
46fc3d4c | 12221 | else { |
6136c704 | 12222 | SV * const where_sv = sv_2mortal(newSVpvs("next char ")); |
46fc3d4c | 12223 | if (yychar < 32) |
cea2e8a9 | 12224 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
46fc3d4c | 12225 | else if (isPRINT_LC(yychar)) |
cea2e8a9 | 12226 | Perl_sv_catpvf(aTHX_ where_sv, "%c", yychar); |
463ee0b2 | 12227 | else |
cea2e8a9 | 12228 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
95a20fc0 | 12229 | where = SvPVX_const(where_sv); |
463ee0b2 | 12230 | } |
46fc3d4c | 12231 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 12232 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 12233 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 12234 | if (context) |
cea2e8a9 | 12235 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 12236 | else |
cea2e8a9 | 12237 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 12238 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 12239 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 12240 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 12241 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 12242 | PL_multi_end = 0; |
a0d0e21e | 12243 | } |
56da5a46 RGS |
12244 | if (PL_in_eval & EVAL_WARNONLY && ckWARN_d(WARN_SYNTAX)) |
12245 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, msg); | |
463ee0b2 | 12246 | else |
5a844595 | 12247 | qerror(msg); |
c7d6bfb2 GS |
12248 | if (PL_error_count >= 10) { |
12249 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 12250 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
248c2a4d | 12251 | ERRSV, OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
12252 | else |
12253 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 12254 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 12255 | } |
3280af22 | 12256 | PL_in_my = 0; |
5c284bb0 | 12257 | PL_in_my_stash = NULL; |
463ee0b2 LW |
12258 | return 0; |
12259 | } | |
084592ab CN |
12260 | #ifdef __SC__ |
12261 | #pragma segment Main | |
12262 | #endif | |
4e35701f | 12263 | |
b250498f | 12264 | STATIC char* |
3ae08724 | 12265 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 12266 | { |
97aff369 | 12267 | dVAR; |
f54cb97a | 12268 | const STRLEN slen = SvCUR(PL_linestr); |
7aa207d6 | 12269 | switch (s[0]) { |
4e553d73 NIS |
12270 | case 0xFF: |
12271 | if (s[1] == 0xFE) { | |
7aa207d6 | 12272 | /* UTF-16 little-endian? (or UTF32-LE?) */ |
3ae08724 | 12273 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
7aa207d6 | 12274 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-LE"); |
01ec43d0 | 12275 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12276 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF16-LE script encoding (BOM)\n"); |
3ae08724 | 12277 | s += 2; |
7aa207d6 | 12278 | utf16le: |
dea0fc0b JH |
12279 | if (PL_bufend > (char*)s) { |
12280 | U8 *news; | |
12281 | I32 newlen; | |
12282 | ||
12283 | filter_add(utf16rev_textfilter, NULL); | |
a02a5408 | 12284 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd RGS |
12285 | utf16_to_utf8_reversed(s, news, |
12286 | PL_bufend - (char*)s - 1, | |
12287 | &newlen); | |
7aa207d6 | 12288 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
5db06880 NC |
12289 | #ifdef PERL_MAD |
12290 | s = (U8*)SvPVX(PL_linestr); | |
12291 | Copy(news, s, newlen, U8); | |
12292 | s[newlen] = '\0'; | |
12293 | #endif | |
dea0fc0b | 12294 | Safefree(news); |
7aa207d6 JH |
12295 | SvUTF8_on(PL_linestr); |
12296 | s = (U8*)SvPVX(PL_linestr); | |
5db06880 NC |
12297 | #ifdef PERL_MAD |
12298 | /* FIXME - is this a general bug fix? */ | |
12299 | s[newlen] = '\0'; | |
12300 | #endif | |
7aa207d6 | 12301 | PL_bufend = SvPVX(PL_linestr) + newlen; |
dea0fc0b | 12302 | } |
b250498f | 12303 | #else |
7aa207d6 | 12304 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-LE"); |
b250498f | 12305 | #endif |
01ec43d0 GS |
12306 | } |
12307 | break; | |
78ae23f5 | 12308 | case 0xFE: |
7aa207d6 | 12309 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 12310 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12311 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b | 12312 | s += 2; |
7aa207d6 | 12313 | utf16be: |
dea0fc0b JH |
12314 | if (PL_bufend > (char *)s) { |
12315 | U8 *news; | |
12316 | I32 newlen; | |
12317 | ||
12318 | filter_add(utf16_textfilter, NULL); | |
a02a5408 | 12319 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd RGS |
12320 | utf16_to_utf8(s, news, |
12321 | PL_bufend - (char*)s, | |
12322 | &newlen); | |
7aa207d6 | 12323 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
dea0fc0b | 12324 | Safefree(news); |
7aa207d6 JH |
12325 | SvUTF8_on(PL_linestr); |
12326 | s = (U8*)SvPVX(PL_linestr); | |
12327 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
dea0fc0b | 12328 | } |
b250498f | 12329 | #else |
7aa207d6 | 12330 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-BE"); |
b250498f | 12331 | #endif |
01ec43d0 GS |
12332 | } |
12333 | break; | |
3ae08724 GS |
12334 | case 0xEF: |
12335 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
7aa207d6 | 12336 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
12337 | s += 3; /* UTF-8 */ |
12338 | } | |
12339 | break; | |
12340 | case 0: | |
7aa207d6 JH |
12341 | if (slen > 3) { |
12342 | if (s[1] == 0) { | |
12343 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
12344 | /* UTF-32 big-endian */ | |
12345 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-BE"); | |
12346 | } | |
12347 | } | |
12348 | else if (s[2] == 0 && s[3] != 0) { | |
12349 | /* Leading bytes | |
12350 | * 00 xx 00 xx | |
12351 | * are a good indicator of UTF-16BE. */ | |
12352 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); | |
12353 | goto utf16be; | |
12354 | } | |
01ec43d0 | 12355 | } |
7aa207d6 JH |
12356 | default: |
12357 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
12358 | /* Leading bytes | |
12359 | * xx 00 xx 00 | |
12360 | * are a good indicator of UTF-16LE. */ | |
12361 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); | |
12362 | goto utf16le; | |
12363 | } | |
01ec43d0 | 12364 | } |
b8f84bb2 | 12365 | return (char*)s; |
b250498f | 12366 | } |
4755096e | 12367 | |
4755096e GS |
12368 | /* |
12369 | * restore_rsfp | |
12370 | * Restore a source filter. | |
12371 | */ | |
12372 | ||
12373 | static void | |
acfe0abc | 12374 | restore_rsfp(pTHX_ void *f) |
4755096e | 12375 | { |
97aff369 | 12376 | dVAR; |
0bd48802 | 12377 | PerlIO * const fp = (PerlIO*)f; |
4755096e GS |
12378 | |
12379 | if (PL_rsfp == PerlIO_stdin()) | |
12380 | PerlIO_clearerr(PL_rsfp); | |
12381 | else if (PL_rsfp && (PL_rsfp != fp)) | |
12382 | PerlIO_close(PL_rsfp); | |
12383 | PL_rsfp = fp; | |
12384 | } | |
6e3aabd6 GS |
12385 | |
12386 | #ifndef PERL_NO_UTF16_FILTER | |
12387 | static I32 | |
acfe0abc | 12388 | utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12389 | { |
97aff369 | 12390 | dVAR; |
f54cb97a AL |
12391 | const STRLEN old = SvCUR(sv); |
12392 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12393 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12394 | "utf16_textfilter(%p): %d %d (%d)\n", | |
4fccd7c6 | 12395 | utf16_textfilter, idx, maxlen, (int) count)); |
6e3aabd6 GS |
12396 | if (count) { |
12397 | U8* tmps; | |
dea0fc0b | 12398 | I32 newlen; |
a02a5408 | 12399 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12400 | Copy(SvPVX_const(sv), tmps, old, char); |
12401 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12402 | SvCUR(sv) - old, &newlen); |
12403 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12404 | } |
1de9afcd RGS |
12405 | DEBUG_P({sv_dump(sv);}); |
12406 | return SvCUR(sv); | |
6e3aabd6 GS |
12407 | } |
12408 | ||
12409 | static I32 | |
acfe0abc | 12410 | utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12411 | { |
97aff369 | 12412 | dVAR; |
f54cb97a AL |
12413 | const STRLEN old = SvCUR(sv); |
12414 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12415 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12416 | "utf16rev_textfilter(%p): %d %d (%d)\n", | |
4fccd7c6 | 12417 | utf16rev_textfilter, idx, maxlen, (int) count)); |
6e3aabd6 GS |
12418 | if (count) { |
12419 | U8* tmps; | |
dea0fc0b | 12420 | I32 newlen; |
a02a5408 | 12421 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12422 | Copy(SvPVX_const(sv), tmps, old, char); |
12423 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12424 | SvCUR(sv) - old, &newlen); |
12425 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12426 | } |
1de9afcd | 12427 | DEBUG_P({ sv_dump(sv); }); |
6e3aabd6 GS |
12428 | return count; |
12429 | } | |
12430 | #endif | |
9f4817db | 12431 | |
f333445c JP |
12432 | /* |
12433 | Returns a pointer to the next character after the parsed | |
12434 | vstring, as well as updating the passed in sv. | |
12435 | ||
12436 | Function must be called like | |
12437 | ||
561b68a9 | 12438 | sv = newSV(5); |
f333445c JP |
12439 | s = scan_vstring(s,sv); |
12440 | ||
12441 | The sv should already be large enough to store the vstring | |
12442 | passed in, for performance reasons. | |
12443 | ||
12444 | */ | |
12445 | ||
12446 | char * | |
bfed75c6 | 12447 | Perl_scan_vstring(pTHX_ const char *s, SV *sv) |
f333445c | 12448 | { |
97aff369 | 12449 | dVAR; |
bfed75c6 AL |
12450 | const char *pos = s; |
12451 | const char *start = s; | |
f333445c | 12452 | if (*pos == 'v') pos++; /* get past 'v' */ |
3e884cbf JH |
12453 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
12454 | pos++; | |
f333445c JP |
12455 | if ( *pos != '.') { |
12456 | /* this may not be a v-string if followed by => */ | |
bfed75c6 | 12457 | const char *next = pos; |
8fc7bb1c SM |
12458 | while (next < PL_bufend && isSPACE(*next)) |
12459 | ++next; | |
12460 | if ((PL_bufend - next) >= 2 && *next == '=' && next[1] == '>' ) { | |
f333445c JP |
12461 | /* return string not v-string */ |
12462 | sv_setpvn(sv,(char *)s,pos-s); | |
73d840c0 | 12463 | return (char *)pos; |
f333445c JP |
12464 | } |
12465 | } | |
12466 | ||
12467 | if (!isALPHA(*pos)) { | |
89ebb4a3 | 12468 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
f333445c | 12469 | |
d4c19fe8 AL |
12470 | if (*s == 'v') |
12471 | s++; /* get past 'v' */ | |
f333445c JP |
12472 | |
12473 | sv_setpvn(sv, "", 0); | |
12474 | ||
12475 | for (;;) { | |
d4c19fe8 | 12476 | /* this is atoi() that tolerates underscores */ |
0bd48802 AL |
12477 | U8 *tmpend; |
12478 | UV rev = 0; | |
d4c19fe8 AL |
12479 | const char *end = pos; |
12480 | UV mult = 1; | |
12481 | while (--end >= s) { | |
12482 | if (*end != '_') { | |
12483 | const UV orev = rev; | |
f333445c JP |
12484 | rev += (*end - '0') * mult; |
12485 | mult *= 10; | |
12486 | if (orev > rev && ckWARN_d(WARN_OVERFLOW)) | |
12487 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), | |
12488 | "Integer overflow in decimal number"); | |
12489 | } | |
12490 | } | |
12491 | #ifdef EBCDIC | |
12492 | if (rev > 0x7FFFFFFF) | |
12493 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
12494 | #endif | |
12495 | /* Append native character for the rev point */ | |
12496 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
12497 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
12498 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
12499 | SvUTF8_on(sv); | |
3e884cbf | 12500 | if (pos + 1 < PL_bufend && *pos == '.' && isDIGIT(pos[1])) |
f333445c JP |
12501 | s = ++pos; |
12502 | else { | |
12503 | s = pos; | |
12504 | break; | |
12505 | } | |
3e884cbf | 12506 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
f333445c JP |
12507 | pos++; |
12508 | } | |
12509 | SvPOK_on(sv); | |
12510 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
12511 | SvRMAGICAL_on(sv); | |
12512 | } | |
73d840c0 | 12513 | return (char *)s; |
f333445c JP |
12514 | } |
12515 | ||
1da4ca5f NC |
12516 | /* |
12517 | * Local variables: | |
12518 | * c-indentation-style: bsd | |
12519 | * c-basic-offset: 4 | |
12520 | * indent-tabs-mode: t | |
12521 | * End: | |
12522 | * | |
37442d52 RGS |
12523 | * ex: set ts=8 sts=4 sw=4 noet: |
12524 | */ |