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" }, | |
c35e046a | 301 | { 0, TOKENTYPE_NONE, NULL } |
bbf60fe6 DM |
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; |
c35e046a AL |
432 | for (t = PL_oldoldbufptr; (isALNUM_lazy_if(t,UTF) || *t == ':'); t++) |
433 | NOOP; | |
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 { |
c35e046a AL |
740 | t = s; |
741 | while (!isSPACE(*t)) | |
742 | t++; | |
73659bf1 | 743 | e = t; |
463ee0b2 | 744 | } |
bf4acbe4 | 745 | while (SPACE_OR_TAB(*e) || *e == '\r' || *e == '\f') |
73659bf1 GS |
746 | e++; |
747 | if (*e != '\n' && *e != '\0') | |
748 | return; /* false alarm */ | |
749 | ||
463ee0b2 LW |
750 | ch = *t; |
751 | *t = '\0'; | |
f4dd75d9 | 752 | if (t - s > 0) { |
8a5ee598 | 753 | #ifndef USE_ITHREADS |
c4420975 | 754 | const char * const cf = CopFILE(PL_curcop); |
42d9b98d NC |
755 | STRLEN tmplen = cf ? strlen(cf) : 0; |
756 | if (tmplen > 7 && strnEQ(cf, "(eval ", 6)) { | |
e66cf94c RGS |
757 | /* must copy *{"::_<(eval N)[oldfilename:L]"} |
758 | * to *{"::_<newfilename"} */ | |
759 | char smallbuf[256], smallbuf2[256]; | |
760 | char *tmpbuf, *tmpbuf2; | |
8a5ee598 | 761 | GV **gvp, *gv2; |
e66cf94c RGS |
762 | STRLEN tmplen2 = strlen(s); |
763 | if (tmplen + 3 < sizeof smallbuf) | |
764 | tmpbuf = smallbuf; | |
765 | else | |
766 | Newx(tmpbuf, tmplen + 3, char); | |
767 | if (tmplen2 + 3 < sizeof smallbuf2) | |
768 | tmpbuf2 = smallbuf2; | |
769 | else | |
770 | Newx(tmpbuf2, tmplen2 + 3, char); | |
771 | tmpbuf[0] = tmpbuf2[0] = '_'; | |
772 | tmpbuf[1] = tmpbuf2[1] = '<'; | |
773 | memcpy(tmpbuf + 2, cf, ++tmplen); | |
774 | memcpy(tmpbuf2 + 2, s, ++tmplen2); | |
775 | ++tmplen; ++tmplen2; | |
8a5ee598 RGS |
776 | gvp = (GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, FALSE); |
777 | if (gvp) { | |
778 | gv2 = *(GV**)hv_fetch(PL_defstash, tmpbuf2, tmplen2, TRUE); | |
779 | if (!isGV(gv2)) | |
780 | gv_init(gv2, PL_defstash, tmpbuf2, tmplen2, FALSE); | |
781 | /* adjust ${"::_<newfilename"} to store the new file name */ | |
782 | GvSV(gv2) = newSVpvn(tmpbuf2 + 2, tmplen2 - 2); | |
783 | GvHV(gv2) = (HV*)SvREFCNT_inc(GvHV(*gvp)); | |
784 | GvAV(gv2) = (AV*)SvREFCNT_inc(GvAV(*gvp)); | |
785 | } | |
e66cf94c RGS |
786 | if (tmpbuf != smallbuf) Safefree(tmpbuf); |
787 | if (tmpbuf2 != smallbuf2) Safefree(tmpbuf2); | |
788 | } | |
8a5ee598 | 789 | #endif |
05ec9bb3 | 790 | CopFILE_free(PL_curcop); |
57843af0 | 791 | CopFILE_set(PL_curcop, s); |
f4dd75d9 | 792 | } |
463ee0b2 | 793 | *t = ch; |
57843af0 | 794 | CopLINE_set(PL_curcop, atoi(n)-1); |
463ee0b2 LW |
795 | } |
796 | ||
29595ff2 | 797 | #ifdef PERL_MAD |
cd81e915 | 798 | /* skip space before PL_thistoken */ |
29595ff2 NC |
799 | |
800 | STATIC char * | |
801 | S_skipspace0(pTHX_ register char *s) | |
802 | { | |
803 | s = skipspace(s); | |
804 | if (!PL_madskills) | |
805 | return s; | |
cd81e915 NC |
806 | if (PL_skipwhite) { |
807 | if (!PL_thiswhite) | |
808 | PL_thiswhite = newSVpvn("",0); | |
809 | sv_catsv(PL_thiswhite, PL_skipwhite); | |
810 | sv_free(PL_skipwhite); | |
811 | PL_skipwhite = 0; | |
812 | } | |
813 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
29595ff2 NC |
814 | return s; |
815 | } | |
816 | ||
cd81e915 | 817 | /* skip space after PL_thistoken */ |
29595ff2 NC |
818 | |
819 | STATIC char * | |
820 | S_skipspace1(pTHX_ register char *s) | |
821 | { | |
d4c19fe8 | 822 | const char *start = s; |
29595ff2 NC |
823 | I32 startoff = start - SvPVX(PL_linestr); |
824 | ||
825 | s = skipspace(s); | |
826 | if (!PL_madskills) | |
827 | return s; | |
828 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 829 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 830 | const char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
831 | PL_thistoken = newSVpvn(tstart, start - tstart); |
832 | } | |
833 | PL_realtokenstart = -1; | |
834 | if (PL_skipwhite) { | |
835 | if (!PL_nextwhite) | |
836 | PL_nextwhite = newSVpvn("",0); | |
837 | sv_catsv(PL_nextwhite, PL_skipwhite); | |
838 | sv_free(PL_skipwhite); | |
839 | PL_skipwhite = 0; | |
29595ff2 NC |
840 | } |
841 | return s; | |
842 | } | |
843 | ||
844 | STATIC char * | |
845 | S_skipspace2(pTHX_ register char *s, SV **svp) | |
846 | { | |
c35e046a AL |
847 | char *start; |
848 | const I32 bufptroff = PL_bufptr - SvPVX(PL_linestr); | |
849 | const I32 startoff = s - SvPVX(PL_linestr); | |
850 | ||
29595ff2 NC |
851 | s = skipspace(s); |
852 | PL_bufptr = SvPVX(PL_linestr) + bufptroff; | |
853 | if (!PL_madskills || !svp) | |
854 | return s; | |
855 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 856 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 857 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
858 | PL_thistoken = newSVpvn(tstart, start - tstart); |
859 | PL_realtokenstart = -1; | |
29595ff2 | 860 | } |
cd81e915 | 861 | if (PL_skipwhite) { |
29595ff2 NC |
862 | if (!*svp) |
863 | *svp = newSVpvn("",0); | |
cd81e915 NC |
864 | sv_setsv(*svp, PL_skipwhite); |
865 | sv_free(PL_skipwhite); | |
866 | PL_skipwhite = 0; | |
29595ff2 NC |
867 | } |
868 | ||
869 | return s; | |
870 | } | |
871 | #endif | |
872 | ||
ffb4593c NT |
873 | /* |
874 | * S_skipspace | |
875 | * Called to gobble the appropriate amount and type of whitespace. | |
876 | * Skips comments as well. | |
877 | */ | |
878 | ||
76e3520e | 879 | STATIC char * |
cea2e8a9 | 880 | S_skipspace(pTHX_ register char *s) |
a687059c | 881 | { |
97aff369 | 882 | dVAR; |
5db06880 NC |
883 | #ifdef PERL_MAD |
884 | int curoff; | |
885 | int startoff = s - SvPVX(PL_linestr); | |
886 | ||
cd81e915 NC |
887 | if (PL_skipwhite) { |
888 | sv_free(PL_skipwhite); | |
889 | PL_skipwhite = 0; | |
5db06880 NC |
890 | } |
891 | #endif | |
892 | ||
3280af22 | 893 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
bf4acbe4 | 894 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
463ee0b2 | 895 | s++; |
5db06880 NC |
896 | #ifdef PERL_MAD |
897 | goto done; | |
898 | #else | |
463ee0b2 | 899 | return s; |
5db06880 | 900 | #endif |
463ee0b2 LW |
901 | } |
902 | for (;;) { | |
fd049845 | 903 | STRLEN prevlen; |
09bef843 | 904 | SSize_t oldprevlen, oldoldprevlen; |
9c5ffd7c | 905 | SSize_t oldloplen = 0, oldunilen = 0; |
60e6418e GS |
906 | while (s < PL_bufend && isSPACE(*s)) { |
907 | if (*s++ == '\n' && PL_in_eval && !PL_rsfp) | |
908 | incline(s); | |
909 | } | |
ffb4593c NT |
910 | |
911 | /* comment */ | |
3280af22 NIS |
912 | if (s < PL_bufend && *s == '#') { |
913 | while (s < PL_bufend && *s != '\n') | |
463ee0b2 | 914 | s++; |
60e6418e | 915 | if (s < PL_bufend) { |
463ee0b2 | 916 | s++; |
60e6418e GS |
917 | if (PL_in_eval && !PL_rsfp) { |
918 | incline(s); | |
919 | continue; | |
920 | } | |
921 | } | |
463ee0b2 | 922 | } |
ffb4593c NT |
923 | |
924 | /* only continue to recharge the buffer if we're at the end | |
925 | * of the buffer, we're not reading from a source filter, and | |
926 | * we're in normal lexing mode | |
927 | */ | |
09bef843 SB |
928 | if (s < PL_bufend || !PL_rsfp || PL_sublex_info.sub_inwhat || |
929 | PL_lex_state == LEX_FORMLINE) | |
5db06880 NC |
930 | #ifdef PERL_MAD |
931 | goto done; | |
932 | #else | |
463ee0b2 | 933 | return s; |
5db06880 | 934 | #endif |
ffb4593c NT |
935 | |
936 | /* try to recharge the buffer */ | |
5db06880 NC |
937 | #ifdef PERL_MAD |
938 | curoff = s - SvPVX(PL_linestr); | |
939 | #endif | |
940 | ||
9cbb5ea2 | 941 | if ((s = filter_gets(PL_linestr, PL_rsfp, |
bd61b366 | 942 | (prevlen = SvCUR(PL_linestr)))) == NULL) |
9cbb5ea2 | 943 | { |
5db06880 NC |
944 | #ifdef PERL_MAD |
945 | if (PL_madskills && curoff != startoff) { | |
cd81e915 NC |
946 | if (!PL_skipwhite) |
947 | PL_skipwhite = newSVpvn("",0); | |
948 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, | |
5db06880 NC |
949 | curoff - startoff); |
950 | } | |
951 | ||
952 | /* mustn't throw out old stuff yet if madpropping */ | |
953 | SvCUR(PL_linestr) = curoff; | |
954 | s = SvPVX(PL_linestr) + curoff; | |
955 | *s = 0; | |
956 | if (curoff && s[-1] == '\n') | |
957 | s[-1] = ' '; | |
958 | #endif | |
959 | ||
9cbb5ea2 | 960 | /* end of file. Add on the -p or -n magic */ |
cd81e915 | 961 | /* XXX these shouldn't really be added here, can't set PL_faketokens */ |
01a19ab0 | 962 | if (PL_minus_p) { |
5db06880 NC |
963 | #ifdef PERL_MAD |
964 | sv_catpv(PL_linestr, | |
965 | ";}continue{print or die qq(-p destination: $!\\n);}"); | |
966 | #else | |
01a19ab0 NC |
967 | sv_setpv(PL_linestr, |
968 | ";}continue{print or die qq(-p destination: $!\\n);}"); | |
5db06880 | 969 | #endif |
3280af22 | 970 | PL_minus_n = PL_minus_p = 0; |
a0d0e21e | 971 | } |
01a19ab0 | 972 | else if (PL_minus_n) { |
5db06880 NC |
973 | #ifdef PERL_MAD |
974 | sv_catpvn(PL_linestr, ";}", 2); | |
975 | #else | |
01a19ab0 | 976 | sv_setpvn(PL_linestr, ";}", 2); |
5db06880 | 977 | #endif |
01a19ab0 NC |
978 | PL_minus_n = 0; |
979 | } | |
a0d0e21e | 980 | else |
5db06880 NC |
981 | #ifdef PERL_MAD |
982 | sv_catpvn(PL_linestr,";", 1); | |
983 | #else | |
4147a61b | 984 | sv_setpvn(PL_linestr,";", 1); |
5db06880 | 985 | #endif |
ffb4593c NT |
986 | |
987 | /* reset variables for next time we lex */ | |
9cbb5ea2 | 988 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart |
89122651 NC |
989 | = SvPVX(PL_linestr) |
990 | #ifdef PERL_MAD | |
991 | + curoff | |
992 | #endif | |
993 | ; | |
3280af22 | 994 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 995 | PL_last_lop = PL_last_uni = NULL; |
ffb4593c NT |
996 | |
997 | /* Close the filehandle. Could be from -P preprocessor, | |
998 | * STDIN, or a regular file. If we were reading code from | |
999 | * STDIN (because the commandline held no -e or filename) | |
1000 | * then we don't close it, we reset it so the code can | |
1001 | * read from STDIN too. | |
1002 | */ | |
1003 | ||
3280af22 NIS |
1004 | if (PL_preprocess && !PL_in_eval) |
1005 | (void)PerlProc_pclose(PL_rsfp); | |
1006 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) | |
1007 | PerlIO_clearerr(PL_rsfp); | |
8990e307 | 1008 | else |
3280af22 | 1009 | (void)PerlIO_close(PL_rsfp); |
4608196e | 1010 | PL_rsfp = NULL; |
463ee0b2 LW |
1011 | return s; |
1012 | } | |
ffb4593c NT |
1013 | |
1014 | /* not at end of file, so we only read another line */ | |
09bef843 SB |
1015 | /* make corresponding updates to old pointers, for yyerror() */ |
1016 | oldprevlen = PL_oldbufptr - PL_bufend; | |
1017 | oldoldprevlen = PL_oldoldbufptr - PL_bufend; | |
1018 | if (PL_last_uni) | |
1019 | oldunilen = PL_last_uni - PL_bufend; | |
1020 | if (PL_last_lop) | |
1021 | oldloplen = PL_last_lop - PL_bufend; | |
3280af22 NIS |
1022 | PL_linestart = PL_bufptr = s + prevlen; |
1023 | PL_bufend = s + SvCUR(PL_linestr); | |
1024 | s = PL_bufptr; | |
09bef843 SB |
1025 | PL_oldbufptr = s + oldprevlen; |
1026 | PL_oldoldbufptr = s + oldoldprevlen; | |
1027 | if (PL_last_uni) | |
1028 | PL_last_uni = s + oldunilen; | |
1029 | if (PL_last_lop) | |
1030 | PL_last_lop = s + oldloplen; | |
a0d0e21e | 1031 | incline(s); |
ffb4593c NT |
1032 | |
1033 | /* debugger active and we're not compiling the debugger code, | |
1034 | * so store the line into the debugger's array of lines | |
1035 | */ | |
3280af22 | 1036 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
561b68a9 | 1037 | SV * const sv = newSV(0); |
8990e307 LW |
1038 | |
1039 | sv_upgrade(sv, SVt_PVMG); | |
3280af22 | 1040 | sv_setpvn(sv,PL_bufptr,PL_bufend-PL_bufptr); |
0ac0412a | 1041 | (void)SvIOK_on(sv); |
45977657 | 1042 | SvIV_set(sv, 0); |
36c7798d | 1043 | av_store(CopFILEAVx(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
8990e307 | 1044 | } |
463ee0b2 | 1045 | } |
5db06880 NC |
1046 | |
1047 | #ifdef PERL_MAD | |
1048 | done: | |
1049 | if (PL_madskills) { | |
cd81e915 NC |
1050 | if (!PL_skipwhite) |
1051 | PL_skipwhite = newSVpvn("",0); | |
5db06880 NC |
1052 | curoff = s - SvPVX(PL_linestr); |
1053 | if (curoff - startoff) | |
cd81e915 | 1054 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, |
5db06880 NC |
1055 | curoff - startoff); |
1056 | } | |
1057 | return s; | |
1058 | #endif | |
a687059c | 1059 | } |
378cc40b | 1060 | |
ffb4593c NT |
1061 | /* |
1062 | * S_check_uni | |
1063 | * Check the unary operators to ensure there's no ambiguity in how they're | |
1064 | * used. An ambiguous piece of code would be: | |
1065 | * rand + 5 | |
1066 | * This doesn't mean rand() + 5. Because rand() is a unary operator, | |
1067 | * the +5 is its argument. | |
1068 | */ | |
1069 | ||
76e3520e | 1070 | STATIC void |
cea2e8a9 | 1071 | S_check_uni(pTHX) |
ba106d47 | 1072 | { |
97aff369 | 1073 | dVAR; |
d4c19fe8 AL |
1074 | const char *s; |
1075 | const char *t; | |
2f3197b3 | 1076 | |
3280af22 | 1077 | if (PL_oldoldbufptr != PL_last_uni) |
2f3197b3 | 1078 | return; |
3280af22 NIS |
1079 | while (isSPACE(*PL_last_uni)) |
1080 | PL_last_uni++; | |
c35e046a AL |
1081 | s = PL_last_uni; |
1082 | while (isALNUM_lazy_if(s,UTF) || *s == '-') | |
1083 | s++; | |
3280af22 | 1084 | if ((t = strchr(s, '(')) && t < PL_bufptr) |
a0d0e21e | 1085 | return; |
6136c704 | 1086 | |
0453d815 | 1087 | if (ckWARN_d(WARN_AMBIGUOUS)){ |
9014280d | 1088 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
32d45c1d NC |
1089 | "Warning: Use of \"%.*s\" without parentheses is ambiguous", |
1090 | (int)(s - PL_last_uni), PL_last_uni); | |
0453d815 | 1091 | } |
2f3197b3 LW |
1092 | } |
1093 | ||
ffb4593c NT |
1094 | /* |
1095 | * LOP : macro to build a list operator. Its behaviour has been replaced | |
1096 | * with a subroutine, S_lop() for which LOP is just another name. | |
1097 | */ | |
1098 | ||
a0d0e21e LW |
1099 | #define LOP(f,x) return lop(f,x,s) |
1100 | ||
ffb4593c NT |
1101 | /* |
1102 | * S_lop | |
1103 | * Build a list operator (or something that might be one). The rules: | |
1104 | * - if we have a next token, then it's a list operator [why?] | |
1105 | * - if the next thing is an opening paren, then it's a function | |
1106 | * - else it's a list operator | |
1107 | */ | |
1108 | ||
76e3520e | 1109 | STATIC I32 |
a0be28da | 1110 | S_lop(pTHX_ I32 f, int x, char *s) |
ffed7fef | 1111 | { |
97aff369 | 1112 | dVAR; |
79072805 | 1113 | yylval.ival = f; |
35c8bce7 | 1114 | CLINE; |
3280af22 NIS |
1115 | PL_expect = x; |
1116 | PL_bufptr = s; | |
1117 | PL_last_lop = PL_oldbufptr; | |
eb160463 | 1118 | PL_last_lop_op = (OPCODE)f; |
5db06880 NC |
1119 | #ifdef PERL_MAD |
1120 | if (PL_lasttoke) | |
1121 | return REPORT(LSTOP); | |
1122 | #else | |
3280af22 | 1123 | if (PL_nexttoke) |
bbf60fe6 | 1124 | return REPORT(LSTOP); |
5db06880 | 1125 | #endif |
79072805 | 1126 | if (*s == '(') |
bbf60fe6 | 1127 | return REPORT(FUNC); |
29595ff2 | 1128 | s = PEEKSPACE(s); |
79072805 | 1129 | if (*s == '(') |
bbf60fe6 | 1130 | return REPORT(FUNC); |
79072805 | 1131 | else |
bbf60fe6 | 1132 | return REPORT(LSTOP); |
79072805 LW |
1133 | } |
1134 | ||
5db06880 NC |
1135 | #ifdef PERL_MAD |
1136 | /* | |
1137 | * S_start_force | |
1138 | * Sets up for an eventual force_next(). start_force(0) basically does | |
1139 | * an unshift, while start_force(-1) does a push. yylex removes items | |
1140 | * on the "pop" end. | |
1141 | */ | |
1142 | ||
1143 | STATIC void | |
1144 | S_start_force(pTHX_ int where) | |
1145 | { | |
1146 | int i; | |
1147 | ||
cd81e915 | 1148 | if (where < 0) /* so people can duplicate start_force(PL_curforce) */ |
5db06880 | 1149 | where = PL_lasttoke; |
cd81e915 NC |
1150 | assert(PL_curforce < 0 || PL_curforce == where); |
1151 | if (PL_curforce != where) { | |
5db06880 NC |
1152 | for (i = PL_lasttoke; i > where; --i) { |
1153 | PL_nexttoke[i] = PL_nexttoke[i-1]; | |
1154 | } | |
1155 | PL_lasttoke++; | |
1156 | } | |
cd81e915 | 1157 | if (PL_curforce < 0) /* in case of duplicate start_force() */ |
5db06880 | 1158 | Zero(&PL_nexttoke[where], 1, NEXTTOKE); |
cd81e915 NC |
1159 | PL_curforce = where; |
1160 | if (PL_nextwhite) { | |
5db06880 NC |
1161 | if (PL_madskills) |
1162 | curmad('^', newSVpvn("",0)); | |
cd81e915 | 1163 | CURMAD('_', PL_nextwhite); |
5db06880 NC |
1164 | } |
1165 | } | |
1166 | ||
1167 | STATIC void | |
1168 | S_curmad(pTHX_ char slot, SV *sv) | |
1169 | { | |
1170 | MADPROP **where; | |
1171 | ||
1172 | if (!sv) | |
1173 | return; | |
cd81e915 NC |
1174 | if (PL_curforce < 0) |
1175 | where = &PL_thismad; | |
5db06880 | 1176 | else |
cd81e915 | 1177 | where = &PL_nexttoke[PL_curforce].next_mad; |
5db06880 | 1178 | |
cd81e915 | 1179 | if (PL_faketokens) |
5db06880 NC |
1180 | sv_setpvn(sv, "", 0); |
1181 | else { | |
1182 | if (!IN_BYTES) { | |
1183 | if (UTF && is_utf8_string((U8*)SvPVX(sv), SvCUR(sv))) | |
1184 | SvUTF8_on(sv); | |
1185 | else if (PL_encoding) { | |
1186 | sv_recode_to_utf8(sv, PL_encoding); | |
1187 | } | |
1188 | } | |
1189 | } | |
1190 | ||
1191 | /* keep a slot open for the head of the list? */ | |
1192 | if (slot != '_' && *where && (*where)->mad_key == '^') { | |
1193 | (*where)->mad_key = slot; | |
1194 | sv_free((*where)->mad_val); | |
1195 | (*where)->mad_val = (void*)sv; | |
1196 | } | |
1197 | else | |
1198 | addmad(newMADsv(slot, sv), where, 0); | |
1199 | } | |
1200 | #else | |
b3f24c00 MHM |
1201 | # define start_force(where) NOOP |
1202 | # define curmad(slot, sv) NOOP | |
5db06880 NC |
1203 | #endif |
1204 | ||
ffb4593c NT |
1205 | /* |
1206 | * S_force_next | |
9cbb5ea2 | 1207 | * When the lexer realizes it knows the next token (for instance, |
ffb4593c | 1208 | * it is reordering tokens for the parser) then it can call S_force_next |
9cbb5ea2 | 1209 | * to know what token to return the next time the lexer is called. Caller |
5db06880 NC |
1210 | * will need to set PL_nextval[] (or PL_nexttoke[].next_val with PERL_MAD), |
1211 | * and possibly PL_expect to ensure the lexer handles the token correctly. | |
ffb4593c NT |
1212 | */ |
1213 | ||
4e553d73 | 1214 | STATIC void |
cea2e8a9 | 1215 | S_force_next(pTHX_ I32 type) |
79072805 | 1216 | { |
97aff369 | 1217 | dVAR; |
5db06880 | 1218 | #ifdef PERL_MAD |
cd81e915 | 1219 | if (PL_curforce < 0) |
5db06880 | 1220 | start_force(PL_lasttoke); |
cd81e915 | 1221 | PL_nexttoke[PL_curforce].next_type = type; |
5db06880 NC |
1222 | if (PL_lex_state != LEX_KNOWNEXT) |
1223 | PL_lex_defer = PL_lex_state; | |
1224 | PL_lex_state = LEX_KNOWNEXT; | |
1225 | PL_lex_expect = PL_expect; | |
cd81e915 | 1226 | PL_curforce = -1; |
5db06880 | 1227 | #else |
3280af22 NIS |
1228 | PL_nexttype[PL_nexttoke] = type; |
1229 | PL_nexttoke++; | |
1230 | if (PL_lex_state != LEX_KNOWNEXT) { | |
1231 | PL_lex_defer = PL_lex_state; | |
1232 | PL_lex_expect = PL_expect; | |
1233 | PL_lex_state = LEX_KNOWNEXT; | |
79072805 | 1234 | } |
5db06880 | 1235 | #endif |
79072805 LW |
1236 | } |
1237 | ||
d0a148a6 NC |
1238 | STATIC SV * |
1239 | S_newSV_maybe_utf8(pTHX_ const char *start, STRLEN len) | |
1240 | { | |
97aff369 | 1241 | dVAR; |
9d4ba2ae | 1242 | SV * const sv = newSVpvn(start,len); |
bfed75c6 | 1243 | if (UTF && !IN_BYTES && is_utf8_string((const U8*)start, len)) |
d0a148a6 NC |
1244 | SvUTF8_on(sv); |
1245 | return sv; | |
1246 | } | |
1247 | ||
ffb4593c NT |
1248 | /* |
1249 | * S_force_word | |
1250 | * When the lexer knows the next thing is a word (for instance, it has | |
1251 | * just seen -> and it knows that the next char is a word char, then | |
1252 | * it calls S_force_word to stick the next word into the PL_next lookahead. | |
1253 | * | |
1254 | * Arguments: | |
b1b65b59 | 1255 | * char *start : buffer position (must be within PL_linestr) |
ffb4593c NT |
1256 | * int token : PL_next will be this type of bare word (e.g., METHOD,WORD) |
1257 | * int check_keyword : if true, Perl checks to make sure the word isn't | |
1258 | * a keyword (do this if the word is a label, e.g. goto FOO) | |
1259 | * int allow_pack : if true, : characters will also be allowed (require, | |
1260 | * use, etc. do this) | |
9cbb5ea2 | 1261 | * int allow_initial_tick : used by the "sub" lexer only. |
ffb4593c NT |
1262 | */ |
1263 | ||
76e3520e | 1264 | STATIC char * |
cea2e8a9 | 1265 | S_force_word(pTHX_ register char *start, int token, int check_keyword, int allow_pack, int allow_initial_tick) |
79072805 | 1266 | { |
97aff369 | 1267 | dVAR; |
463ee0b2 LW |
1268 | register char *s; |
1269 | STRLEN len; | |
4e553d73 | 1270 | |
29595ff2 | 1271 | start = SKIPSPACE1(start); |
463ee0b2 | 1272 | s = start; |
7e2040f0 | 1273 | if (isIDFIRST_lazy_if(s,UTF) || |
a0d0e21e | 1274 | (allow_pack && *s == ':') || |
15f0808c | 1275 | (allow_initial_tick && *s == '\'') ) |
a0d0e21e | 1276 | { |
3280af22 NIS |
1277 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, allow_pack, &len); |
1278 | if (check_keyword && keyword(PL_tokenbuf, len)) | |
463ee0b2 | 1279 | return start; |
cd81e915 | 1280 | start_force(PL_curforce); |
5db06880 NC |
1281 | if (PL_madskills) |
1282 | curmad('X', newSVpvn(start,s-start)); | |
463ee0b2 | 1283 | if (token == METHOD) { |
29595ff2 | 1284 | s = SKIPSPACE1(s); |
463ee0b2 | 1285 | if (*s == '(') |
3280af22 | 1286 | PL_expect = XTERM; |
463ee0b2 | 1287 | else { |
3280af22 | 1288 | PL_expect = XOPERATOR; |
463ee0b2 | 1289 | } |
79072805 | 1290 | } |
9ded7720 | 1291 | NEXTVAL_NEXTTOKE.opval |
d0a148a6 NC |
1292 | = (OP*)newSVOP(OP_CONST,0, |
1293 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
9ded7720 | 1294 | NEXTVAL_NEXTTOKE.opval->op_private |= OPpCONST_BARE; |
79072805 LW |
1295 | force_next(token); |
1296 | } | |
1297 | return s; | |
1298 | } | |
1299 | ||
ffb4593c NT |
1300 | /* |
1301 | * S_force_ident | |
9cbb5ea2 | 1302 | * Called when the lexer wants $foo *foo &foo etc, but the program |
ffb4593c NT |
1303 | * text only contains the "foo" portion. The first argument is a pointer |
1304 | * to the "foo", and the second argument is the type symbol to prefix. | |
1305 | * Forces the next token to be a "WORD". | |
9cbb5ea2 | 1306 | * Creates the symbol if it didn't already exist (via gv_fetchpv()). |
ffb4593c NT |
1307 | */ |
1308 | ||
76e3520e | 1309 | STATIC void |
bfed75c6 | 1310 | S_force_ident(pTHX_ register const char *s, int kind) |
79072805 | 1311 | { |
97aff369 | 1312 | dVAR; |
c35e046a | 1313 | if (*s) { |
90e5519e NC |
1314 | const STRLEN len = strlen(s); |
1315 | OP* const o = (OP*)newSVOP(OP_CONST, 0, newSVpvn(s, len)); | |
cd81e915 | 1316 | start_force(PL_curforce); |
9ded7720 | 1317 | NEXTVAL_NEXTTOKE.opval = o; |
79072805 | 1318 | force_next(WORD); |
748a9306 | 1319 | if (kind) { |
11343788 | 1320 | o->op_private = OPpCONST_ENTERED; |
55497cff | 1321 | /* XXX see note in pp_entereval() for why we forgo typo |
1322 | warnings if the symbol must be introduced in an eval. | |
1323 | GSAR 96-10-12 */ | |
90e5519e NC |
1324 | gv_fetchpvn_flags(s, len, |
1325 | PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) | |
1326 | : GV_ADD, | |
1327 | kind == '$' ? SVt_PV : | |
1328 | kind == '@' ? SVt_PVAV : | |
1329 | kind == '%' ? SVt_PVHV : | |
a0d0e21e | 1330 | SVt_PVGV |
90e5519e | 1331 | ); |
748a9306 | 1332 | } |
79072805 LW |
1333 | } |
1334 | } | |
1335 | ||
1571675a GS |
1336 | NV |
1337 | Perl_str_to_version(pTHX_ SV *sv) | |
1338 | { | |
1339 | NV retval = 0.0; | |
1340 | NV nshift = 1.0; | |
1341 | STRLEN len; | |
cfd0369c | 1342 | const char *start = SvPV_const(sv,len); |
9d4ba2ae | 1343 | const char * const end = start + len; |
504618e9 | 1344 | const bool utf = SvUTF8(sv) ? TRUE : FALSE; |
1571675a | 1345 | while (start < end) { |
ba210ebe | 1346 | STRLEN skip; |
1571675a GS |
1347 | UV n; |
1348 | if (utf) | |
9041c2e3 | 1349 | n = utf8n_to_uvchr((U8*)start, len, &skip, 0); |
1571675a GS |
1350 | else { |
1351 | n = *(U8*)start; | |
1352 | skip = 1; | |
1353 | } | |
1354 | retval += ((NV)n)/nshift; | |
1355 | start += skip; | |
1356 | nshift *= 1000; | |
1357 | } | |
1358 | return retval; | |
1359 | } | |
1360 | ||
4e553d73 | 1361 | /* |
ffb4593c NT |
1362 | * S_force_version |
1363 | * Forces the next token to be a version number. | |
e759cc13 RGS |
1364 | * If the next token appears to be an invalid version number, (e.g. "v2b"), |
1365 | * and if "guessing" is TRUE, then no new token is created (and the caller | |
1366 | * must use an alternative parsing method). | |
ffb4593c NT |
1367 | */ |
1368 | ||
76e3520e | 1369 | STATIC char * |
e759cc13 | 1370 | S_force_version(pTHX_ char *s, int guessing) |
89bfa8cd | 1371 | { |
97aff369 | 1372 | dVAR; |
5f66b61c | 1373 | OP *version = NULL; |
44dcb63b | 1374 | char *d; |
5db06880 NC |
1375 | #ifdef PERL_MAD |
1376 | I32 startoff = s - SvPVX(PL_linestr); | |
1377 | #endif | |
89bfa8cd | 1378 | |
29595ff2 | 1379 | s = SKIPSPACE1(s); |
89bfa8cd | 1380 | |
44dcb63b | 1381 | d = s; |
dd629d5b | 1382 | if (*d == 'v') |
44dcb63b | 1383 | d++; |
44dcb63b | 1384 | if (isDIGIT(*d)) { |
e759cc13 RGS |
1385 | while (isDIGIT(*d) || *d == '_' || *d == '.') |
1386 | d++; | |
5db06880 NC |
1387 | #ifdef PERL_MAD |
1388 | if (PL_madskills) { | |
cd81e915 | 1389 | start_force(PL_curforce); |
5db06880 NC |
1390 | curmad('X', newSVpvn(s,d-s)); |
1391 | } | |
1392 | #endif | |
9f3d182e | 1393 | if (*d == ';' || isSPACE(*d) || *d == '}' || !*d) { |
dd629d5b | 1394 | SV *ver; |
b73d6f50 | 1395 | s = scan_num(s, &yylval); |
89bfa8cd | 1396 | version = yylval.opval; |
dd629d5b GS |
1397 | ver = cSVOPx(version)->op_sv; |
1398 | if (SvPOK(ver) && !SvNIOK(ver)) { | |
862a34c6 | 1399 | SvUPGRADE(ver, SVt_PVNV); |
9d6ce603 | 1400 | SvNV_set(ver, str_to_version(ver)); |
1571675a | 1401 | SvNOK_on(ver); /* hint that it is a version */ |
44dcb63b | 1402 | } |
89bfa8cd | 1403 | } |
5db06880 NC |
1404 | else if (guessing) { |
1405 | #ifdef PERL_MAD | |
1406 | if (PL_madskills) { | |
cd81e915 NC |
1407 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1408 | PL_nextwhite = 0; | |
5db06880 NC |
1409 | s = SvPVX(PL_linestr) + startoff; |
1410 | } | |
1411 | #endif | |
e759cc13 | 1412 | return s; |
5db06880 | 1413 | } |
89bfa8cd | 1414 | } |
1415 | ||
5db06880 NC |
1416 | #ifdef PERL_MAD |
1417 | if (PL_madskills && !version) { | |
cd81e915 NC |
1418 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1419 | PL_nextwhite = 0; | |
5db06880 NC |
1420 | s = SvPVX(PL_linestr) + startoff; |
1421 | } | |
1422 | #endif | |
89bfa8cd | 1423 | /* NOTE: The parser sees the package name and the VERSION swapped */ |
cd81e915 | 1424 | start_force(PL_curforce); |
9ded7720 | 1425 | NEXTVAL_NEXTTOKE.opval = version; |
4e553d73 | 1426 | force_next(WORD); |
89bfa8cd | 1427 | |
e759cc13 | 1428 | return s; |
89bfa8cd | 1429 | } |
1430 | ||
ffb4593c NT |
1431 | /* |
1432 | * S_tokeq | |
1433 | * Tokenize a quoted string passed in as an SV. It finds the next | |
1434 | * chunk, up to end of string or a backslash. It may make a new | |
1435 | * SV containing that chunk (if HINT_NEW_STRING is on). It also | |
1436 | * turns \\ into \. | |
1437 | */ | |
1438 | ||
76e3520e | 1439 | STATIC SV * |
cea2e8a9 | 1440 | S_tokeq(pTHX_ SV *sv) |
79072805 | 1441 | { |
97aff369 | 1442 | dVAR; |
79072805 LW |
1443 | register char *s; |
1444 | register char *send; | |
1445 | register char *d; | |
b3ac6de7 IZ |
1446 | STRLEN len = 0; |
1447 | SV *pv = sv; | |
79072805 LW |
1448 | |
1449 | if (!SvLEN(sv)) | |
b3ac6de7 | 1450 | goto finish; |
79072805 | 1451 | |
a0d0e21e | 1452 | s = SvPV_force(sv, len); |
21a311ee | 1453 | if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) |
b3ac6de7 | 1454 | goto finish; |
463ee0b2 | 1455 | send = s + len; |
79072805 LW |
1456 | while (s < send && *s != '\\') |
1457 | s++; | |
1458 | if (s == send) | |
b3ac6de7 | 1459 | goto finish; |
79072805 | 1460 | d = s; |
be4731d2 | 1461 | if ( PL_hints & HINT_NEW_STRING ) { |
95a20fc0 | 1462 | pv = sv_2mortal(newSVpvn(SvPVX_const(pv), len)); |
be4731d2 NIS |
1463 | if (SvUTF8(sv)) |
1464 | SvUTF8_on(pv); | |
1465 | } | |
79072805 LW |
1466 | while (s < send) { |
1467 | if (*s == '\\') { | |
a0d0e21e | 1468 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
1469 | s++; /* all that, just for this */ |
1470 | } | |
1471 | *d++ = *s++; | |
1472 | } | |
1473 | *d = '\0'; | |
95a20fc0 | 1474 | SvCUR_set(sv, d - SvPVX_const(sv)); |
b3ac6de7 | 1475 | finish: |
3280af22 | 1476 | if ( PL_hints & HINT_NEW_STRING ) |
b3ac6de7 | 1477 | return new_constant(NULL, 0, "q", sv, pv, "q"); |
79072805 LW |
1478 | return sv; |
1479 | } | |
1480 | ||
ffb4593c NT |
1481 | /* |
1482 | * Now come three functions related to double-quote context, | |
1483 | * S_sublex_start, S_sublex_push, and S_sublex_done. They're used when | |
1484 | * converting things like "\u\Lgnat" into ucfirst(lc("gnat")). They | |
1485 | * interact with PL_lex_state, and create fake ( ... ) argument lists | |
1486 | * to handle functions and concatenation. | |
1487 | * They assume that whoever calls them will be setting up a fake | |
1488 | * join call, because each subthing puts a ',' after it. This lets | |
1489 | * "lower \luPpEr" | |
1490 | * become | |
1491 | * join($, , 'lower ', lcfirst( 'uPpEr', ) ,) | |
1492 | * | |
1493 | * (I'm not sure whether the spurious commas at the end of lcfirst's | |
1494 | * arguments and join's arguments are created or not). | |
1495 | */ | |
1496 | ||
1497 | /* | |
1498 | * S_sublex_start | |
1499 | * Assumes that yylval.ival is the op we're creating (e.g. OP_LCFIRST). | |
1500 | * | |
1501 | * Pattern matching will set PL_lex_op to the pattern-matching op to | |
1502 | * make (we return THING if yylval.ival is OP_NULL, PMFUNC otherwise). | |
1503 | * | |
1504 | * OP_CONST and OP_READLINE are easy--just make the new op and return. | |
1505 | * | |
1506 | * Everything else becomes a FUNC. | |
1507 | * | |
1508 | * Sets PL_lex_state to LEX_INTERPPUSH unless (ival was OP_NULL or we | |
1509 | * had an OP_CONST or OP_READLINE). This just sets us up for a | |
1510 | * call to S_sublex_push(). | |
1511 | */ | |
1512 | ||
76e3520e | 1513 | STATIC I32 |
cea2e8a9 | 1514 | S_sublex_start(pTHX) |
79072805 | 1515 | { |
97aff369 | 1516 | dVAR; |
0d46e09a | 1517 | register const I32 op_type = yylval.ival; |
79072805 LW |
1518 | |
1519 | if (op_type == OP_NULL) { | |
3280af22 | 1520 | yylval.opval = PL_lex_op; |
5f66b61c | 1521 | PL_lex_op = NULL; |
79072805 LW |
1522 | return THING; |
1523 | } | |
1524 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
3280af22 | 1525 | SV *sv = tokeq(PL_lex_stuff); |
b3ac6de7 IZ |
1526 | |
1527 | if (SvTYPE(sv) == SVt_PVIV) { | |
1528 | /* Overloaded constants, nothing fancy: Convert to SVt_PV: */ | |
1529 | STRLEN len; | |
96a5add6 | 1530 | const char * const p = SvPV_const(sv, len); |
f54cb97a | 1531 | SV * const nsv = newSVpvn(p, len); |
01ec43d0 GS |
1532 | if (SvUTF8(sv)) |
1533 | SvUTF8_on(nsv); | |
b3ac6de7 IZ |
1534 | SvREFCNT_dec(sv); |
1535 | sv = nsv; | |
4e553d73 | 1536 | } |
b3ac6de7 | 1537 | yylval.opval = (OP*)newSVOP(op_type, 0, sv); |
a0714e2c | 1538 | PL_lex_stuff = NULL; |
6f33ba73 RGS |
1539 | /* Allow <FH> // "foo" */ |
1540 | if (op_type == OP_READLINE) | |
1541 | PL_expect = XTERMORDORDOR; | |
79072805 LW |
1542 | return THING; |
1543 | } | |
1544 | ||
3280af22 NIS |
1545 | PL_sublex_info.super_state = PL_lex_state; |
1546 | PL_sublex_info.sub_inwhat = op_type; | |
1547 | PL_sublex_info.sub_op = PL_lex_op; | |
1548 | PL_lex_state = LEX_INTERPPUSH; | |
55497cff | 1549 | |
3280af22 NIS |
1550 | PL_expect = XTERM; |
1551 | if (PL_lex_op) { | |
1552 | yylval.opval = PL_lex_op; | |
5f66b61c | 1553 | PL_lex_op = NULL; |
55497cff | 1554 | return PMFUNC; |
1555 | } | |
1556 | else | |
1557 | return FUNC; | |
1558 | } | |
1559 | ||
ffb4593c NT |
1560 | /* |
1561 | * S_sublex_push | |
1562 | * Create a new scope to save the lexing state. The scope will be | |
1563 | * ended in S_sublex_done. Returns a '(', starting the function arguments | |
1564 | * to the uc, lc, etc. found before. | |
1565 | * Sets PL_lex_state to LEX_INTERPCONCAT. | |
1566 | */ | |
1567 | ||
76e3520e | 1568 | STATIC I32 |
cea2e8a9 | 1569 | S_sublex_push(pTHX) |
55497cff | 1570 | { |
27da23d5 | 1571 | dVAR; |
f46d017c | 1572 | ENTER; |
55497cff | 1573 | |
3280af22 NIS |
1574 | PL_lex_state = PL_sublex_info.super_state; |
1575 | SAVEI32(PL_lex_dojoin); | |
1576 | SAVEI32(PL_lex_brackets); | |
3280af22 NIS |
1577 | SAVEI32(PL_lex_casemods); |
1578 | SAVEI32(PL_lex_starts); | |
1579 | SAVEI32(PL_lex_state); | |
7766f137 | 1580 | SAVEVPTR(PL_lex_inpat); |
3280af22 | 1581 | SAVEI32(PL_lex_inwhat); |
57843af0 | 1582 | SAVECOPLINE(PL_curcop); |
3280af22 | 1583 | SAVEPPTR(PL_bufptr); |
8452ff4b | 1584 | SAVEPPTR(PL_bufend); |
3280af22 NIS |
1585 | SAVEPPTR(PL_oldbufptr); |
1586 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
1587 | SAVEPPTR(PL_last_lop); |
1588 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
1589 | SAVEPPTR(PL_linestart); |
1590 | SAVESPTR(PL_linestr); | |
8edd5f42 RGS |
1591 | SAVEGENERICPV(PL_lex_brackstack); |
1592 | SAVEGENERICPV(PL_lex_casestack); | |
3280af22 NIS |
1593 | |
1594 | PL_linestr = PL_lex_stuff; | |
a0714e2c | 1595 | PL_lex_stuff = NULL; |
3280af22 | 1596 | |
9cbb5ea2 GS |
1597 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart |
1598 | = SvPVX(PL_linestr); | |
3280af22 | 1599 | PL_bufend += SvCUR(PL_linestr); |
bd61b366 | 1600 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1601 | SAVEFREESV(PL_linestr); |
1602 | ||
1603 | PL_lex_dojoin = FALSE; | |
1604 | PL_lex_brackets = 0; | |
a02a5408 JC |
1605 | Newx(PL_lex_brackstack, 120, char); |
1606 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
1607 | PL_lex_casemods = 0; |
1608 | *PL_lex_casestack = '\0'; | |
1609 | PL_lex_starts = 0; | |
1610 | PL_lex_state = LEX_INTERPCONCAT; | |
eb160463 | 1611 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 NIS |
1612 | |
1613 | PL_lex_inwhat = PL_sublex_info.sub_inwhat; | |
1614 | if (PL_lex_inwhat == OP_MATCH || PL_lex_inwhat == OP_QR || PL_lex_inwhat == OP_SUBST) | |
1615 | PL_lex_inpat = PL_sublex_info.sub_op; | |
79072805 | 1616 | else |
5f66b61c | 1617 | PL_lex_inpat = NULL; |
79072805 | 1618 | |
55497cff | 1619 | return '('; |
79072805 LW |
1620 | } |
1621 | ||
ffb4593c NT |
1622 | /* |
1623 | * S_sublex_done | |
1624 | * Restores lexer state after a S_sublex_push. | |
1625 | */ | |
1626 | ||
76e3520e | 1627 | STATIC I32 |
cea2e8a9 | 1628 | S_sublex_done(pTHX) |
79072805 | 1629 | { |
27da23d5 | 1630 | dVAR; |
3280af22 | 1631 | if (!PL_lex_starts++) { |
396482e1 | 1632 | SV * const sv = newSVpvs(""); |
9aa983d2 JH |
1633 | if (SvUTF8(PL_linestr)) |
1634 | SvUTF8_on(sv); | |
3280af22 | 1635 | PL_expect = XOPERATOR; |
9aa983d2 | 1636 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
79072805 LW |
1637 | return THING; |
1638 | } | |
1639 | ||
3280af22 NIS |
1640 | if (PL_lex_casemods) { /* oops, we've got some unbalanced parens */ |
1641 | PL_lex_state = LEX_INTERPCASEMOD; | |
cea2e8a9 | 1642 | return yylex(); |
79072805 LW |
1643 | } |
1644 | ||
ffb4593c | 1645 | /* Is there a right-hand side to take care of? (s//RHS/ or tr//RHS/) */ |
3280af22 NIS |
1646 | if (PL_lex_repl && (PL_lex_inwhat == OP_SUBST || PL_lex_inwhat == OP_TRANS)) { |
1647 | PL_linestr = PL_lex_repl; | |
1648 | PL_lex_inpat = 0; | |
1649 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
1650 | PL_bufend += SvCUR(PL_linestr); | |
bd61b366 | 1651 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1652 | SAVEFREESV(PL_linestr); |
1653 | PL_lex_dojoin = FALSE; | |
1654 | PL_lex_brackets = 0; | |
3280af22 NIS |
1655 | PL_lex_casemods = 0; |
1656 | *PL_lex_casestack = '\0'; | |
1657 | PL_lex_starts = 0; | |
25da4f38 | 1658 | if (SvEVALED(PL_lex_repl)) { |
3280af22 NIS |
1659 | PL_lex_state = LEX_INTERPNORMAL; |
1660 | PL_lex_starts++; | |
e9fa98b2 HS |
1661 | /* we don't clear PL_lex_repl here, so that we can check later |
1662 | whether this is an evalled subst; that means we rely on the | |
1663 | logic to ensure sublex_done() is called again only via the | |
1664 | branch (in yylex()) that clears PL_lex_repl, else we'll loop */ | |
79072805 | 1665 | } |
e9fa98b2 | 1666 | else { |
3280af22 | 1667 | PL_lex_state = LEX_INTERPCONCAT; |
a0714e2c | 1668 | PL_lex_repl = NULL; |
e9fa98b2 | 1669 | } |
79072805 | 1670 | return ','; |
ffed7fef LW |
1671 | } |
1672 | else { | |
5db06880 NC |
1673 | #ifdef PERL_MAD |
1674 | if (PL_madskills) { | |
cd81e915 NC |
1675 | if (PL_thiswhite) { |
1676 | if (!PL_endwhite) | |
1677 | PL_endwhite = newSVpvn("",0); | |
1678 | sv_catsv(PL_endwhite, PL_thiswhite); | |
1679 | PL_thiswhite = 0; | |
1680 | } | |
1681 | if (PL_thistoken) | |
1682 | sv_setpvn(PL_thistoken,"",0); | |
5db06880 | 1683 | else |
cd81e915 | 1684 | PL_realtokenstart = -1; |
5db06880 NC |
1685 | } |
1686 | #endif | |
f46d017c | 1687 | LEAVE; |
3280af22 NIS |
1688 | PL_bufend = SvPVX(PL_linestr); |
1689 | PL_bufend += SvCUR(PL_linestr); | |
1690 | PL_expect = XOPERATOR; | |
09bef843 | 1691 | PL_sublex_info.sub_inwhat = 0; |
79072805 | 1692 | return ')'; |
ffed7fef LW |
1693 | } |
1694 | } | |
1695 | ||
02aa26ce NT |
1696 | /* |
1697 | scan_const | |
1698 | ||
1699 | Extracts a pattern, double-quoted string, or transliteration. This | |
1700 | is terrifying code. | |
1701 | ||
3280af22 NIS |
1702 | It looks at lex_inwhat and PL_lex_inpat to find out whether it's |
1703 | processing a pattern (PL_lex_inpat is true), a transliteration | |
02aa26ce NT |
1704 | (lex_inwhat & OP_TRANS is true), or a double-quoted string. |
1705 | ||
9b599b2a GS |
1706 | Returns a pointer to the character scanned up to. Iff this is |
1707 | advanced from the start pointer supplied (ie if anything was | |
1708 | successfully parsed), will leave an OP for the substring scanned | |
1709 | in yylval. Caller must intuit reason for not parsing further | |
1710 | by looking at the next characters herself. | |
1711 | ||
02aa26ce NT |
1712 | In patterns: |
1713 | backslashes: | |
1714 | double-quoted style: \r and \n | |
1715 | regexp special ones: \D \s | |
1716 | constants: \x3 | |
1717 | backrefs: \1 (deprecated in substitution replacements) | |
1718 | case and quoting: \U \Q \E | |
1719 | stops on @ and $, but not for $ as tail anchor | |
1720 | ||
1721 | In transliterations: | |
1722 | characters are VERY literal, except for - not at the start or end | |
1723 | of the string, which indicates a range. scan_const expands the | |
1724 | range to the full set of intermediate characters. | |
1725 | ||
1726 | In double-quoted strings: | |
1727 | backslashes: | |
1728 | double-quoted style: \r and \n | |
1729 | constants: \x3 | |
1730 | backrefs: \1 (deprecated) | |
1731 | case and quoting: \U \Q \E | |
1732 | stops on @ and $ | |
1733 | ||
1734 | scan_const does *not* construct ops to handle interpolated strings. | |
1735 | It stops processing as soon as it finds an embedded $ or @ variable | |
1736 | and leaves it to the caller to work out what's going on. | |
1737 | ||
da6eedaa | 1738 | @ in pattern could be: @foo, @{foo}, @$foo, @'foo, @::foo. |
02aa26ce NT |
1739 | |
1740 | $ in pattern could be $foo or could be tail anchor. Assumption: | |
1741 | it's a tail anchor if $ is the last thing in the string, or if it's | |
1742 | followed by one of ")| \n\t" | |
1743 | ||
1744 | \1 (backreferences) are turned into $1 | |
1745 | ||
1746 | The structure of the code is | |
1747 | while (there's a character to process) { | |
1748 | handle transliteration ranges | |
1749 | skip regexp comments | |
1750 | skip # initiated comments in //x patterns | |
1751 | check for embedded @foo | |
1752 | check for embedded scalars | |
1753 | if (backslash) { | |
1754 | leave intact backslashes from leave (below) | |
1755 | deprecate \1 in strings and sub replacements | |
1756 | handle string-changing backslashes \l \U \Q \E, etc. | |
1757 | switch (what was escaped) { | |
1758 | handle - in a transliteration (becomes a literal -) | |
1759 | handle \132 octal characters | |
1760 | handle 0x15 hex characters | |
1761 | handle \cV (control V) | |
1762 | handle printf backslashes (\f, \r, \n, etc) | |
1763 | } (end switch) | |
1764 | } (end if backslash) | |
1765 | } (end while character to read) | |
4e553d73 | 1766 | |
02aa26ce NT |
1767 | */ |
1768 | ||
76e3520e | 1769 | STATIC char * |
cea2e8a9 | 1770 | S_scan_const(pTHX_ char *start) |
79072805 | 1771 | { |
97aff369 | 1772 | dVAR; |
3280af22 | 1773 | register char *send = PL_bufend; /* end of the constant */ |
561b68a9 | 1774 | SV *sv = newSV(send - start); /* sv for the constant */ |
02aa26ce NT |
1775 | register char *s = start; /* start of the constant */ |
1776 | register char *d = SvPVX(sv); /* destination for copies */ | |
1777 | bool dorange = FALSE; /* are we in a translit range? */ | |
c2e66d9e | 1778 | bool didrange = FALSE; /* did we just finish a range? */ |
2b9d42f0 NIS |
1779 | I32 has_utf8 = FALSE; /* Output constant is UTF8 */ |
1780 | I32 this_utf8 = UTF; /* The source string is assumed to be UTF8 */ | |
012bcf8d | 1781 | UV uv; |
4c3a8340 TS |
1782 | #ifdef EBCDIC |
1783 | UV literal_endpoint = 0; | |
1784 | #endif | |
012bcf8d | 1785 | |
d4c19fe8 | 1786 | const char * const leaveit = /* set of acceptably-backslashed characters */ |
3280af22 | 1787 | PL_lex_inpat |
b6d5fef8 | 1788 | ? "\\.^$@AGZdDwWsSbBpPXC+*?|()-nrtfeaxz0123456789[{]} \t\n\r\f\v#" |
9b599b2a | 1789 | : ""; |
79072805 | 1790 | |
2b9d42f0 NIS |
1791 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
1792 | /* If we are doing a trans and we know we want UTF8 set expectation */ | |
1793 | has_utf8 = PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF); | |
1794 | this_utf8 = PL_sublex_info.sub_op->op_private & (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
1795 | } | |
1796 | ||
1797 | ||
79072805 | 1798 | while (s < send || dorange) { |
02aa26ce | 1799 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 1800 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 1801 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 1802 | if (dorange) { |
1ba5c669 JH |
1803 | I32 i; /* current expanded character */ |
1804 | I32 min; /* first character in range */ | |
1805 | I32 max; /* last character in range */ | |
02aa26ce | 1806 | |
2b9d42f0 | 1807 | if (has_utf8) { |
9d4ba2ae | 1808 | char * const c = (char*)utf8_hop((U8*)d, -1); |
8973db79 JH |
1809 | char *e = d++; |
1810 | while (e-- > c) | |
1811 | *(e + 1) = *e; | |
25716404 | 1812 | *c = (char)UTF_TO_NATIVE(0xff); |
8973db79 JH |
1813 | /* mark the range as done, and continue */ |
1814 | dorange = FALSE; | |
1815 | didrange = TRUE; | |
1816 | continue; | |
1817 | } | |
2b9d42f0 | 1818 | |
95a20fc0 | 1819 | i = d - SvPVX_const(sv); /* remember current offset */ |
9cbb5ea2 GS |
1820 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
1821 | d = SvPVX(sv) + i; /* refresh d after realloc */ | |
02aa26ce NT |
1822 | d -= 2; /* eat the first char and the - */ |
1823 | ||
8ada0baa JH |
1824 | min = (U8)*d; /* first char in range */ |
1825 | max = (U8)d[1]; /* last char in range */ | |
1826 | ||
c2e66d9e | 1827 | if (min > max) { |
01ec43d0 | 1828 | Perl_croak(aTHX_ |
d1573ac7 | 1829 | "Invalid range \"%c-%c\" in transliteration operator", |
1ba5c669 | 1830 | (char)min, (char)max); |
c2e66d9e GS |
1831 | } |
1832 | ||
c7f1f016 | 1833 | #ifdef EBCDIC |
4c3a8340 TS |
1834 | if (literal_endpoint == 2 && |
1835 | ((isLOWER(min) && isLOWER(max)) || | |
1836 | (isUPPER(min) && isUPPER(max)))) { | |
8ada0baa JH |
1837 | if (isLOWER(min)) { |
1838 | for (i = min; i <= max; i++) | |
1839 | if (isLOWER(i)) | |
db42d148 | 1840 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1841 | } else { |
1842 | for (i = min; i <= max; i++) | |
1843 | if (isUPPER(i)) | |
db42d148 | 1844 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1845 | } |
1846 | } | |
1847 | else | |
1848 | #endif | |
1849 | for (i = min; i <= max; i++) | |
eb160463 | 1850 | *d++ = (char)i; |
02aa26ce NT |
1851 | |
1852 | /* mark the range as done, and continue */ | |
79072805 | 1853 | dorange = FALSE; |
01ec43d0 | 1854 | didrange = TRUE; |
4c3a8340 TS |
1855 | #ifdef EBCDIC |
1856 | literal_endpoint = 0; | |
1857 | #endif | |
79072805 | 1858 | continue; |
4e553d73 | 1859 | } |
02aa26ce NT |
1860 | |
1861 | /* range begins (ignore - as first or last char) */ | |
79072805 | 1862 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 1863 | if (didrange) { |
1fafa243 | 1864 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 1865 | } |
2b9d42f0 | 1866 | if (has_utf8) { |
25716404 | 1867 | *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
1868 | s++; |
1869 | continue; | |
1870 | } | |
79072805 LW |
1871 | dorange = TRUE; |
1872 | s++; | |
01ec43d0 GS |
1873 | } |
1874 | else { | |
1875 | didrange = FALSE; | |
4c3a8340 TS |
1876 | #ifdef EBCDIC |
1877 | literal_endpoint = 0; | |
1878 | #endif | |
01ec43d0 | 1879 | } |
79072805 | 1880 | } |
02aa26ce NT |
1881 | |
1882 | /* if we get here, we're not doing a transliteration */ | |
1883 | ||
0f5d15d6 IZ |
1884 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
1885 | except for the last char, which will be done separately. */ | |
3280af22 | 1886 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 | 1887 | if (s[2] == '#') { |
e994fd66 | 1888 | while (s+1 < send && *s != ')') |
db42d148 | 1889 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
155aba94 GS |
1890 | } |
1891 | else if (s[2] == '{' /* This should match regcomp.c */ | |
1892 | || ((s[2] == 'p' || s[2] == '?') && s[3] == '{')) | |
1893 | { | |
cc6b7395 | 1894 | I32 count = 1; |
0f5d15d6 | 1895 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
1896 | char c; |
1897 | ||
d9f97599 GS |
1898 | while (count && (c = *regparse)) { |
1899 | if (c == '\\' && regparse[1]) | |
1900 | regparse++; | |
4e553d73 | 1901 | else if (c == '{') |
cc6b7395 | 1902 | count++; |
4e553d73 | 1903 | else if (c == '}') |
cc6b7395 | 1904 | count--; |
d9f97599 | 1905 | regparse++; |
cc6b7395 | 1906 | } |
e994fd66 | 1907 | if (*regparse != ')') |
5bdf89e7 | 1908 | regparse--; /* Leave one char for continuation. */ |
0f5d15d6 | 1909 | while (s < regparse) |
db42d148 | 1910 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
cc6b7395 | 1911 | } |
748a9306 | 1912 | } |
02aa26ce NT |
1913 | |
1914 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
1915 | else if (*s == '#' && PL_lex_inpat && |
1916 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 | 1917 | while (s+1 < send && *s != '\n') |
db42d148 | 1918 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
748a9306 | 1919 | } |
02aa26ce | 1920 | |
5d1d4326 | 1921 | /* check for embedded arrays |
da6eedaa | 1922 | (@foo, @::foo, @'foo, @{foo}, @$foo, @+, @-) |
5d1d4326 | 1923 | */ |
7e2040f0 | 1924 | else if (*s == '@' && s[1] |
5d1d4326 | 1925 | && (isALNUM_lazy_if(s+1,UTF) || strchr(":'{$+-", s[1]))) |
79072805 | 1926 | break; |
02aa26ce NT |
1927 | |
1928 | /* check for embedded scalars. only stop if we're sure it's a | |
1929 | variable. | |
1930 | */ | |
79072805 | 1931 | else if (*s == '$') { |
3280af22 | 1932 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 1933 | break; |
6002328a | 1934 | if (s + 1 < send && !strchr("()| \r\n\t", s[1])) |
79072805 LW |
1935 | break; /* in regexp, $ might be tail anchor */ |
1936 | } | |
02aa26ce | 1937 | |
2b9d42f0 NIS |
1938 | /* End of else if chain - OP_TRANS rejoin rest */ |
1939 | ||
02aa26ce | 1940 | /* backslashes */ |
79072805 LW |
1941 | if (*s == '\\' && s+1 < send) { |
1942 | s++; | |
02aa26ce NT |
1943 | |
1944 | /* some backslashes we leave behind */ | |
c9f97d15 | 1945 | if (*leaveit && *s && strchr(leaveit, *s)) { |
db42d148 NIS |
1946 | *d++ = NATIVE_TO_NEED(has_utf8,'\\'); |
1947 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
79072805 LW |
1948 | continue; |
1949 | } | |
02aa26ce NT |
1950 | |
1951 | /* deprecate \1 in strings and substitution replacements */ | |
3280af22 | 1952 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 1953 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 1954 | { |
599cee73 | 1955 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 1956 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s); |
79072805 LW |
1957 | *--s = '$'; |
1958 | break; | |
1959 | } | |
02aa26ce NT |
1960 | |
1961 | /* string-change backslash escapes */ | |
3280af22 | 1962 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
1963 | --s; |
1964 | break; | |
1965 | } | |
02aa26ce NT |
1966 | |
1967 | /* if we get here, it's either a quoted -, or a digit */ | |
79072805 | 1968 | switch (*s) { |
02aa26ce NT |
1969 | |
1970 | /* quoted - in transliterations */ | |
79072805 | 1971 | case '-': |
3280af22 | 1972 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
1973 | *d++ = *s++; |
1974 | continue; | |
1975 | } | |
1976 | /* FALL THROUGH */ | |
1977 | default: | |
11b8faa4 | 1978 | { |
86f97054 | 1979 | if ((isALPHA(*s) || isDIGIT(*s)) && |
041457d9 | 1980 | ckWARN(WARN_MISC)) |
9014280d | 1981 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
11b8faa4 JH |
1982 | "Unrecognized escape \\%c passed through", |
1983 | *s); | |
1984 | /* default action is to copy the quoted character */ | |
f9a63242 | 1985 | goto default_action; |
11b8faa4 | 1986 | } |
02aa26ce NT |
1987 | |
1988 | /* \132 indicates an octal constant */ | |
79072805 LW |
1989 | case '0': case '1': case '2': case '3': |
1990 | case '4': case '5': case '6': case '7': | |
ba210ebe | 1991 | { |
53305cf1 NC |
1992 | I32 flags = 0; |
1993 | STRLEN len = 3; | |
1994 | uv = grok_oct(s, &len, &flags, NULL); | |
ba210ebe JH |
1995 | s += len; |
1996 | } | |
012bcf8d | 1997 | goto NUM_ESCAPE_INSERT; |
02aa26ce NT |
1998 | |
1999 | /* \x24 indicates a hex constant */ | |
79072805 | 2000 | case 'x': |
a0ed51b3 LW |
2001 | ++s; |
2002 | if (*s == '{') { | |
9d4ba2ae | 2003 | char* const e = strchr(s, '}'); |
a4c04bdc NC |
2004 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
2005 | PERL_SCAN_DISALLOW_PREFIX; | |
53305cf1 | 2006 | STRLEN len; |
355860ce | 2007 | |
53305cf1 | 2008 | ++s; |
adaeee49 | 2009 | if (!e) { |
a0ed51b3 | 2010 | yyerror("Missing right brace on \\x{}"); |
355860ce | 2011 | continue; |
ba210ebe | 2012 | } |
53305cf1 NC |
2013 | len = e - s; |
2014 | uv = grok_hex(s, &len, &flags, NULL); | |
ba210ebe | 2015 | s = e + 1; |
a0ed51b3 LW |
2016 | } |
2017 | else { | |
ba210ebe | 2018 | { |
53305cf1 | 2019 | STRLEN len = 2; |
a4c04bdc | 2020 | I32 flags = PERL_SCAN_DISALLOW_PREFIX; |
53305cf1 | 2021 | uv = grok_hex(s, &len, &flags, NULL); |
ba210ebe JH |
2022 | s += len; |
2023 | } | |
012bcf8d GS |
2024 | } |
2025 | ||
2026 | NUM_ESCAPE_INSERT: | |
2027 | /* Insert oct or hex escaped character. | |
301d3d20 | 2028 | * There will always enough room in sv since such |
db42d148 | 2029 | * escapes will be longer than any UTF-8 sequence |
301d3d20 | 2030 | * they can end up as. */ |
ba7cea30 | 2031 | |
c7f1f016 NIS |
2032 | /* We need to map to chars to ASCII before doing the tests |
2033 | to cover EBCDIC | |
2034 | */ | |
c4d5f83a | 2035 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(uv))) { |
9aa983d2 | 2036 | if (!has_utf8 && uv > 255) { |
301d3d20 JH |
2037 | /* Might need to recode whatever we have |
2038 | * accumulated so far if it contains any | |
2039 | * hibit chars. | |
2040 | * | |
2041 | * (Can't we keep track of that and avoid | |
2042 | * this rescan? --jhi) | |
012bcf8d | 2043 | */ |
c7f1f016 | 2044 | int hicount = 0; |
63cd0674 NIS |
2045 | U8 *c; |
2046 | for (c = (U8 *) SvPVX(sv); c < (U8 *)d; c++) { | |
c4d5f83a | 2047 | if (!NATIVE_IS_INVARIANT(*c)) { |
012bcf8d | 2048 | hicount++; |
db42d148 | 2049 | } |
012bcf8d | 2050 | } |
63cd0674 | 2051 | if (hicount) { |
9d4ba2ae | 2052 | const STRLEN offset = d - SvPVX_const(sv); |
db42d148 NIS |
2053 | U8 *src, *dst; |
2054 | d = SvGROW(sv, SvLEN(sv) + hicount + 1) + offset; | |
2055 | src = (U8 *)d - 1; | |
2056 | dst = src+hicount; | |
2057 | d += hicount; | |
cfd0369c | 2058 | while (src >= (const U8 *)SvPVX_const(sv)) { |
c4d5f83a | 2059 | if (!NATIVE_IS_INVARIANT(*src)) { |
9d4ba2ae | 2060 | const U8 ch = NATIVE_TO_ASCII(*src); |
eb160463 GS |
2061 | *dst-- = (U8)UTF8_EIGHT_BIT_LO(ch); |
2062 | *dst-- = (U8)UTF8_EIGHT_BIT_HI(ch); | |
012bcf8d GS |
2063 | } |
2064 | else { | |
63cd0674 | 2065 | *dst-- = *src; |
012bcf8d | 2066 | } |
c7f1f016 | 2067 | src--; |
012bcf8d GS |
2068 | } |
2069 | } | |
2070 | } | |
2071 | ||
9aa983d2 | 2072 | if (has_utf8 || uv > 255) { |
9041c2e3 | 2073 | d = (char*)uvchr_to_utf8((U8*)d, uv); |
4e553d73 | 2074 | has_utf8 = TRUE; |
f9a63242 JH |
2075 | if (PL_lex_inwhat == OP_TRANS && |
2076 | PL_sublex_info.sub_op) { | |
2077 | PL_sublex_info.sub_op->op_private |= | |
2078 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
2079 | : OPpTRANS_TO_UTF); | |
f9a63242 | 2080 | } |
012bcf8d | 2081 | } |
a0ed51b3 | 2082 | else { |
012bcf8d | 2083 | *d++ = (char)uv; |
a0ed51b3 | 2084 | } |
012bcf8d GS |
2085 | } |
2086 | else { | |
c4d5f83a | 2087 | *d++ = (char) uv; |
a0ed51b3 | 2088 | } |
79072805 | 2089 | continue; |
02aa26ce | 2090 | |
b239daa5 | 2091 | /* \N{LATIN SMALL LETTER A} is a named character */ |
4a2d328f | 2092 | case 'N': |
55eda711 | 2093 | ++s; |
423cee85 JH |
2094 | if (*s == '{') { |
2095 | char* e = strchr(s, '}'); | |
155aba94 | 2096 | SV *res; |
423cee85 | 2097 | STRLEN len; |
cfd0369c | 2098 | const char *str; |
4e553d73 | 2099 | |
423cee85 | 2100 | if (!e) { |
5777a3f7 | 2101 | yyerror("Missing right brace on \\N{}"); |
423cee85 JH |
2102 | e = s - 1; |
2103 | goto cont_scan; | |
2104 | } | |
dbc0d4f2 JH |
2105 | if (e > s + 2 && s[1] == 'U' && s[2] == '+') { |
2106 | /* \N{U+...} */ | |
2107 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | | |
2108 | PERL_SCAN_DISALLOW_PREFIX; | |
2109 | s += 3; | |
2110 | len = e - s; | |
2111 | uv = grok_hex(s, &len, &flags, NULL); | |
2112 | s = e + 1; | |
2113 | goto NUM_ESCAPE_INSERT; | |
2114 | } | |
55eda711 | 2115 | res = newSVpvn(s + 1, e - s - 1); |
bd61b366 | 2116 | res = new_constant( NULL, 0, "charnames", |
a0714e2c | 2117 | res, NULL, "\\N{...}" ); |
f9a63242 JH |
2118 | if (has_utf8) |
2119 | sv_utf8_upgrade(res); | |
cfd0369c | 2120 | str = SvPV_const(res,len); |
1c47067b JH |
2121 | #ifdef EBCDIC_NEVER_MIND |
2122 | /* charnames uses pack U and that has been | |
2123 | * recently changed to do the below uni->native | |
2124 | * mapping, so this would be redundant (and wrong, | |
2125 | * the code point would be doubly converted). | |
2126 | * But leave this in just in case the pack U change | |
2127 | * gets revoked, but the semantics is still | |
2128 | * desireable for charnames. --jhi */ | |
cddc7ef4 | 2129 | { |
cfd0369c | 2130 | UV uv = utf8_to_uvchr((const U8*)str, 0); |
cddc7ef4 JH |
2131 | |
2132 | if (uv < 0x100) { | |
89ebb4a3 | 2133 | U8 tmpbuf[UTF8_MAXBYTES+1], *d; |
cddc7ef4 JH |
2134 | |
2135 | d = uvchr_to_utf8(tmpbuf, UNI_TO_NATIVE(uv)); | |
2136 | sv_setpvn(res, (char *)tmpbuf, d - tmpbuf); | |
cfd0369c | 2137 | str = SvPV_const(res, len); |
cddc7ef4 JH |
2138 | } |
2139 | } | |
2140 | #endif | |
89491803 | 2141 | if (!has_utf8 && SvUTF8(res)) { |
9d4ba2ae | 2142 | const char * const ostart = SvPVX_const(sv); |
f08d6ad9 GS |
2143 | SvCUR_set(sv, d - ostart); |
2144 | SvPOK_on(sv); | |
e4f3eed8 | 2145 | *d = '\0'; |
f08d6ad9 | 2146 | sv_utf8_upgrade(sv); |
d2f449dd | 2147 | /* this just broke our allocation above... */ |
eb160463 | 2148 | SvGROW(sv, (STRLEN)(send - start)); |
f08d6ad9 | 2149 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 2150 | has_utf8 = TRUE; |
f08d6ad9 | 2151 | } |
eb160463 | 2152 | if (len > (STRLEN)(e - s + 4)) { /* I _guess_ 4 is \N{} --jhi */ |
9d4ba2ae | 2153 | const char * const odest = SvPVX_const(sv); |
423cee85 | 2154 | |
8973db79 | 2155 | SvGROW(sv, (SvLEN(sv) + len - (e - s + 4))); |
423cee85 JH |
2156 | d = SvPVX(sv) + (d - odest); |
2157 | } | |
2158 | Copy(str, d, len, char); | |
2159 | d += len; | |
2160 | SvREFCNT_dec(res); | |
2161 | cont_scan: | |
2162 | s = e + 1; | |
2163 | } | |
2164 | else | |
5777a3f7 | 2165 | yyerror("Missing braces on \\N{}"); |
423cee85 JH |
2166 | continue; |
2167 | ||
02aa26ce | 2168 | /* \c is a control character */ |
79072805 LW |
2169 | case 'c': |
2170 | s++; | |
961ce445 | 2171 | if (s < send) { |
ba210ebe | 2172 | U8 c = *s++; |
c7f1f016 NIS |
2173 | #ifdef EBCDIC |
2174 | if (isLOWER(c)) | |
2175 | c = toUPPER(c); | |
2176 | #endif | |
db42d148 | 2177 | *d++ = NATIVE_TO_NEED(has_utf8,toCTRL(c)); |
ba210ebe | 2178 | } |
961ce445 RGS |
2179 | else { |
2180 | yyerror("Missing control char name in \\c"); | |
2181 | } | |
79072805 | 2182 | continue; |
02aa26ce NT |
2183 | |
2184 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 | 2185 | case 'b': |
db42d148 | 2186 | *d++ = NATIVE_TO_NEED(has_utf8,'\b'); |
79072805 LW |
2187 | break; |
2188 | case 'n': | |
db42d148 | 2189 | *d++ = NATIVE_TO_NEED(has_utf8,'\n'); |
79072805 LW |
2190 | break; |
2191 | case 'r': | |
db42d148 | 2192 | *d++ = NATIVE_TO_NEED(has_utf8,'\r'); |
79072805 LW |
2193 | break; |
2194 | case 'f': | |
db42d148 | 2195 | *d++ = NATIVE_TO_NEED(has_utf8,'\f'); |
79072805 LW |
2196 | break; |
2197 | case 't': | |
db42d148 | 2198 | *d++ = NATIVE_TO_NEED(has_utf8,'\t'); |
79072805 | 2199 | break; |
34a3fe2a | 2200 | case 'e': |
db42d148 | 2201 | *d++ = ASCII_TO_NEED(has_utf8,'\033'); |
34a3fe2a PP |
2202 | break; |
2203 | case 'a': | |
db42d148 | 2204 | *d++ = ASCII_TO_NEED(has_utf8,'\007'); |
79072805 | 2205 | break; |
02aa26ce NT |
2206 | } /* end switch */ |
2207 | ||
79072805 LW |
2208 | s++; |
2209 | continue; | |
02aa26ce | 2210 | } /* end if (backslash) */ |
4c3a8340 TS |
2211 | #ifdef EBCDIC |
2212 | else | |
2213 | literal_endpoint++; | |
2214 | #endif | |
02aa26ce | 2215 | |
f9a63242 | 2216 | default_action: |
2b9d42f0 NIS |
2217 | /* If we started with encoded form, or already know we want it |
2218 | and then encode the next character */ | |
2219 | if ((has_utf8 || this_utf8) && !NATIVE_IS_INVARIANT((U8)(*s))) { | |
2220 | STRLEN len = 1; | |
5f66b61c AL |
2221 | const UV nextuv = (this_utf8) ? utf8n_to_uvchr((U8*)s, send - s, &len, 0) : (UV) ((U8) *s); |
2222 | const STRLEN need = UNISKIP(NATIVE_TO_UNI(nextuv)); | |
2b9d42f0 NIS |
2223 | s += len; |
2224 | if (need > len) { | |
2225 | /* encoded value larger than old, need extra space (NOTE: SvCUR() not set here) */ | |
9d4ba2ae | 2226 | const STRLEN off = d - SvPVX_const(sv); |
2b9d42f0 NIS |
2227 | d = SvGROW(sv, SvLEN(sv) + (need-len)) + off; |
2228 | } | |
5f66b61c | 2229 | d = (char*)uvchr_to_utf8((U8*)d, nextuv); |
2b9d42f0 NIS |
2230 | has_utf8 = TRUE; |
2231 | } | |
2232 | else { | |
2233 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
2234 | } | |
02aa26ce NT |
2235 | } /* while loop to process each character */ |
2236 | ||
2237 | /* terminate the string and set up the sv */ | |
79072805 | 2238 | *d = '\0'; |
95a20fc0 | 2239 | SvCUR_set(sv, d - SvPVX_const(sv)); |
2b9d42f0 | 2240 | if (SvCUR(sv) >= SvLEN(sv)) |
d0063567 | 2241 | Perl_croak(aTHX_ "panic: constant overflowed allocated space"); |
2b9d42f0 | 2242 | |
79072805 | 2243 | SvPOK_on(sv); |
9f4817db | 2244 | if (PL_encoding && !has_utf8) { |
d0063567 DK |
2245 | sv_recode_to_utf8(sv, PL_encoding); |
2246 | if (SvUTF8(sv)) | |
2247 | has_utf8 = TRUE; | |
9f4817db | 2248 | } |
2b9d42f0 | 2249 | if (has_utf8) { |
7e2040f0 | 2250 | SvUTF8_on(sv); |
2b9d42f0 | 2251 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
d0063567 | 2252 | PL_sublex_info.sub_op->op_private |= |
2b9d42f0 NIS |
2253 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); |
2254 | } | |
2255 | } | |
79072805 | 2256 | |
02aa26ce | 2257 | /* shrink the sv if we allocated more than we used */ |
79072805 | 2258 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
1da4ca5f | 2259 | SvPV_shrink_to_cur(sv); |
79072805 | 2260 | } |
02aa26ce | 2261 | |
9b599b2a | 2262 | /* return the substring (via yylval) only if we parsed anything */ |
3280af22 NIS |
2263 | if (s > PL_bufptr) { |
2264 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) | |
4e553d73 | 2265 | sv = new_constant(start, s - start, (PL_lex_inpat ? "qr" : "q"), |
a0714e2c | 2266 | sv, NULL, |
4e553d73 | 2267 | ( PL_lex_inwhat == OP_TRANS |
b3ac6de7 | 2268 | ? "tr" |
3280af22 | 2269 | : ( (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) |
b3ac6de7 IZ |
2270 | ? "s" |
2271 | : "qq"))); | |
79072805 | 2272 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 2273 | } else |
8990e307 | 2274 | SvREFCNT_dec(sv); |
79072805 LW |
2275 | return s; |
2276 | } | |
2277 | ||
ffb4593c NT |
2278 | /* S_intuit_more |
2279 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
2280 | * FALSE otherwise. | |
ffb4593c NT |
2281 | * |
2282 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
2283 | * | |
2284 | * ->[ and ->{ return TRUE | |
2285 | * { and [ outside a pattern are always subscripts, so return TRUE | |
2286 | * if we're outside a pattern and it's not { or [, then return FALSE | |
2287 | * if we're in a pattern and the first char is a { | |
2288 | * {4,5} (any digits around the comma) returns FALSE | |
2289 | * if we're in a pattern and the first char is a [ | |
2290 | * [] returns FALSE | |
2291 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
2292 | * character class or not. It has to deal with things like | |
2293 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
2294 | * anything else returns TRUE | |
2295 | */ | |
2296 | ||
9cbb5ea2 GS |
2297 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
2298 | ||
76e3520e | 2299 | STATIC int |
cea2e8a9 | 2300 | S_intuit_more(pTHX_ register char *s) |
79072805 | 2301 | { |
97aff369 | 2302 | dVAR; |
3280af22 | 2303 | if (PL_lex_brackets) |
79072805 LW |
2304 | return TRUE; |
2305 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
2306 | return TRUE; | |
2307 | if (*s != '{' && *s != '[') | |
2308 | return FALSE; | |
3280af22 | 2309 | if (!PL_lex_inpat) |
79072805 LW |
2310 | return TRUE; |
2311 | ||
2312 | /* In a pattern, so maybe we have {n,m}. */ | |
2313 | if (*s == '{') { | |
2314 | s++; | |
2315 | if (!isDIGIT(*s)) | |
2316 | return TRUE; | |
2317 | while (isDIGIT(*s)) | |
2318 | s++; | |
2319 | if (*s == ',') | |
2320 | s++; | |
2321 | while (isDIGIT(*s)) | |
2322 | s++; | |
2323 | if (*s == '}') | |
2324 | return FALSE; | |
2325 | return TRUE; | |
2326 | ||
2327 | } | |
2328 | ||
2329 | /* On the other hand, maybe we have a character class */ | |
2330 | ||
2331 | s++; | |
2332 | if (*s == ']' || *s == '^') | |
2333 | return FALSE; | |
2334 | else { | |
ffb4593c | 2335 | /* this is terrifying, and it works */ |
79072805 LW |
2336 | int weight = 2; /* let's weigh the evidence */ |
2337 | char seen[256]; | |
f27ffc4a | 2338 | unsigned char un_char = 255, last_un_char; |
9d4ba2ae | 2339 | const char * const send = strchr(s,']'); |
3280af22 | 2340 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
2341 | |
2342 | if (!send) /* has to be an expression */ | |
2343 | return TRUE; | |
2344 | ||
2345 | Zero(seen,256,char); | |
2346 | if (*s == '$') | |
2347 | weight -= 3; | |
2348 | else if (isDIGIT(*s)) { | |
2349 | if (s[1] != ']') { | |
2350 | if (isDIGIT(s[1]) && s[2] == ']') | |
2351 | weight -= 10; | |
2352 | } | |
2353 | else | |
2354 | weight -= 100; | |
2355 | } | |
2356 | for (; s < send; s++) { | |
2357 | last_un_char = un_char; | |
2358 | un_char = (unsigned char)*s; | |
2359 | switch (*s) { | |
2360 | case '@': | |
2361 | case '&': | |
2362 | case '$': | |
2363 | weight -= seen[un_char] * 10; | |
7e2040f0 | 2364 | if (isALNUM_lazy_if(s+1,UTF)) { |
90e5519e | 2365 | int len; |
8903cb82 | 2366 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
90e5519e NC |
2367 | len = (int)strlen(tmpbuf); |
2368 | if (len > 1 && gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PV)) | |
79072805 LW |
2369 | weight -= 100; |
2370 | else | |
2371 | weight -= 10; | |
2372 | } | |
2373 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
2374 | strchr("[#!%*<>()-=",s[1])) { |
2375 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
2376 | weight -= 10; |
2377 | else | |
2378 | weight -= 1; | |
2379 | } | |
2380 | break; | |
2381 | case '\\': | |
2382 | un_char = 254; | |
2383 | if (s[1]) { | |
93a17b20 | 2384 | if (strchr("wds]",s[1])) |
79072805 LW |
2385 | weight += 100; |
2386 | else if (seen['\''] || seen['"']) | |
2387 | weight += 1; | |
93a17b20 | 2388 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
2389 | weight += 40; |
2390 | else if (isDIGIT(s[1])) { | |
2391 | weight += 40; | |
2392 | while (s[1] && isDIGIT(s[1])) | |
2393 | s++; | |
2394 | } | |
2395 | } | |
2396 | else | |
2397 | weight += 100; | |
2398 | break; | |
2399 | case '-': | |
2400 | if (s[1] == '\\') | |
2401 | weight += 50; | |
93a17b20 | 2402 | if (strchr("aA01! ",last_un_char)) |
79072805 | 2403 | weight += 30; |
93a17b20 | 2404 | if (strchr("zZ79~",s[1])) |
79072805 | 2405 | weight += 30; |
f27ffc4a GS |
2406 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
2407 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
2408 | break; |
2409 | default: | |
3792a11b NC |
2410 | if (!isALNUM(last_un_char) |
2411 | && !(last_un_char == '$' || last_un_char == '@' | |
2412 | || last_un_char == '&') | |
2413 | && isALPHA(*s) && s[1] && isALPHA(s[1])) { | |
79072805 LW |
2414 | char *d = tmpbuf; |
2415 | while (isALPHA(*s)) | |
2416 | *d++ = *s++; | |
2417 | *d = '\0'; | |
2418 | if (keyword(tmpbuf, d - tmpbuf)) | |
2419 | weight -= 150; | |
2420 | } | |
2421 | if (un_char == last_un_char + 1) | |
2422 | weight += 5; | |
2423 | weight -= seen[un_char]; | |
2424 | break; | |
2425 | } | |
2426 | seen[un_char]++; | |
2427 | } | |
2428 | if (weight >= 0) /* probably a character class */ | |
2429 | return FALSE; | |
2430 | } | |
2431 | ||
2432 | return TRUE; | |
2433 | } | |
ffed7fef | 2434 | |
ffb4593c NT |
2435 | /* |
2436 | * S_intuit_method | |
2437 | * | |
2438 | * Does all the checking to disambiguate | |
2439 | * foo bar | |
2440 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
2441 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
2442 | * | |
2443 | * First argument is the stuff after the first token, e.g. "bar". | |
2444 | * | |
2445 | * Not a method if bar is a filehandle. | |
2446 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
2447 | * Not a method if it's really "Foo $bar" | |
2448 | * Method if it's "foo $bar" | |
2449 | * Not a method if it's really "print foo $bar" | |
2450 | * Method if it's really "foo package::" (interpreted as package->foo) | |
8f8cf39c | 2451 | * Not a method if bar is known to be a subroutine ("sub bar; foo bar") |
3cb0bbe5 | 2452 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
2453 | * => |
2454 | */ | |
2455 | ||
76e3520e | 2456 | STATIC int |
62d55b22 | 2457 | S_intuit_method(pTHX_ char *start, GV *gv, CV *cv) |
a0d0e21e | 2458 | { |
97aff369 | 2459 | dVAR; |
a0d0e21e | 2460 | char *s = start + (*start == '$'); |
3280af22 | 2461 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
2462 | STRLEN len; |
2463 | GV* indirgv; | |
5db06880 NC |
2464 | #ifdef PERL_MAD |
2465 | int soff; | |
2466 | #endif | |
a0d0e21e LW |
2467 | |
2468 | if (gv) { | |
62d55b22 | 2469 | if (SvTYPE(gv) == SVt_PVGV && GvIO(gv)) |
a0d0e21e | 2470 | return 0; |
62d55b22 NC |
2471 | if (cv) { |
2472 | if (SvPOK(cv)) { | |
2473 | const char *proto = SvPVX_const(cv); | |
2474 | if (proto) { | |
2475 | if (*proto == ';') | |
2476 | proto++; | |
2477 | if (*proto == '*') | |
2478 | return 0; | |
2479 | } | |
b6c543e3 IZ |
2480 | } |
2481 | } else | |
c35e046a | 2482 | gv = NULL; |
a0d0e21e | 2483 | } |
8903cb82 | 2484 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
2485 | /* start is the beginning of the possible filehandle/object, |
2486 | * and s is the end of it | |
2487 | * tmpbuf is a copy of it | |
2488 | */ | |
2489 | ||
a0d0e21e | 2490 | if (*start == '$') { |
3280af22 | 2491 | if (gv || PL_last_lop_op == OP_PRINT || isUPPER(*PL_tokenbuf)) |
a0d0e21e | 2492 | return 0; |
5db06880 NC |
2493 | #ifdef PERL_MAD |
2494 | len = start - SvPVX(PL_linestr); | |
2495 | #endif | |
29595ff2 | 2496 | s = PEEKSPACE(s); |
5db06880 NC |
2497 | #ifdef PERLMAD |
2498 | start = SvPVX(PL_linestr) + len; | |
2499 | #endif | |
3280af22 NIS |
2500 | PL_bufptr = start; |
2501 | PL_expect = XREF; | |
a0d0e21e LW |
2502 | return *s == '(' ? FUNCMETH : METHOD; |
2503 | } | |
2504 | if (!keyword(tmpbuf, len)) { | |
c3e0f903 GS |
2505 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
2506 | len -= 2; | |
2507 | tmpbuf[len] = '\0'; | |
5db06880 NC |
2508 | #ifdef PERL_MAD |
2509 | soff = s - SvPVX(PL_linestr); | |
2510 | #endif | |
c3e0f903 GS |
2511 | goto bare_package; |
2512 | } | |
90e5519e | 2513 | indirgv = gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PVCV); |
8ebc5c01 | 2514 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
2515 | return 0; |
2516 | /* filehandle or package name makes it a method */ | |
89bfa8cd | 2517 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) { |
5db06880 NC |
2518 | #ifdef PERL_MAD |
2519 | soff = s - SvPVX(PL_linestr); | |
2520 | #endif | |
29595ff2 | 2521 | s = PEEKSPACE(s); |
3280af22 | 2522 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 2523 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 2524 | bare_package: |
cd81e915 | 2525 | start_force(PL_curforce); |
9ded7720 | 2526 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, |
79cb57f6 | 2527 | newSVpvn(tmpbuf,len)); |
9ded7720 | 2528 | NEXTVAL_NEXTTOKE.opval->op_private = OPpCONST_BARE; |
5db06880 NC |
2529 | if (PL_madskills) |
2530 | curmad('X', newSVpvn(start,SvPVX(PL_linestr) + soff - start)); | |
3280af22 | 2531 | PL_expect = XTERM; |
a0d0e21e | 2532 | force_next(WORD); |
3280af22 | 2533 | PL_bufptr = s; |
5db06880 NC |
2534 | #ifdef PERL_MAD |
2535 | PL_bufptr = SvPVX(PL_linestr) + soff; /* restart before space */ | |
2536 | #endif | |
a0d0e21e LW |
2537 | return *s == '(' ? FUNCMETH : METHOD; |
2538 | } | |
2539 | } | |
2540 | return 0; | |
2541 | } | |
2542 | ||
ffb4593c NT |
2543 | /* |
2544 | * S_incl_perldb | |
2545 | * Return a string of Perl code to load the debugger. If PERL5DB | |
2546 | * is set, it will return the contents of that, otherwise a | |
2547 | * compile-time require of perl5db.pl. | |
2548 | */ | |
2549 | ||
bfed75c6 | 2550 | STATIC const char* |
cea2e8a9 | 2551 | S_incl_perldb(pTHX) |
a0d0e21e | 2552 | { |
97aff369 | 2553 | dVAR; |
3280af22 | 2554 | if (PL_perldb) { |
9d4ba2ae | 2555 | const char * const pdb = PerlEnv_getenv("PERL5DB"); |
a0d0e21e LW |
2556 | |
2557 | if (pdb) | |
2558 | return pdb; | |
93189314 | 2559 | SETERRNO(0,SS_NORMAL); |
a0d0e21e LW |
2560 | return "BEGIN { require 'perl5db.pl' }"; |
2561 | } | |
2562 | return ""; | |
2563 | } | |
2564 | ||
2565 | ||
16d20bd9 | 2566 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 2567 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
2568 | * Note that the filter function only applies to the current source file |
2569 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
2570 | * | |
2571 | * The datasv parameter (which may be NULL) can be used to pass | |
2572 | * private data to this instance of the filter. The filter function | |
2573 | * can recover the SV using the FILTER_DATA macro and use it to | |
2574 | * store private buffers and state information. | |
2575 | * | |
2576 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 2577 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 2578 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
2579 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
2580 | * private use must be set using malloc'd pointers. | |
2581 | */ | |
16d20bd9 AD |
2582 | |
2583 | SV * | |
864dbfa3 | 2584 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 2585 | { |
97aff369 | 2586 | dVAR; |
f4c556ac | 2587 | if (!funcp) |
a0714e2c | 2588 | return NULL; |
f4c556ac | 2589 | |
3280af22 NIS |
2590 | if (!PL_rsfp_filters) |
2591 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 2592 | if (!datasv) |
561b68a9 | 2593 | datasv = newSV(0); |
862a34c6 | 2594 | SvUPGRADE(datasv, SVt_PVIO); |
8141890a | 2595 | IoANY(datasv) = FPTR2DPTR(void *, funcp); /* stash funcp into spare field */ |
e0c19803 | 2596 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac | 2597 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
55662e27 JH |
2598 | FPTR2DPTR(void *, IoANY(datasv)), |
2599 | SvPV_nolen(datasv))); | |
3280af22 NIS |
2600 | av_unshift(PL_rsfp_filters, 1); |
2601 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
2602 | return(datasv); |
2603 | } | |
4e553d73 | 2604 | |
16d20bd9 AD |
2605 | |
2606 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 2607 | void |
864dbfa3 | 2608 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 2609 | { |
97aff369 | 2610 | dVAR; |
e0c19803 | 2611 | SV *datasv; |
24801a4b | 2612 | |
33073adb | 2613 | #ifdef DEBUGGING |
55662e27 JH |
2614 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", |
2615 | FPTR2DPTR(void*, funcp))); | |
33073adb | 2616 | #endif |
3280af22 | 2617 | if (!PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
2618 | return; |
2619 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 2620 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
8141890a | 2621 | if (IoANY(datasv) == FPTR2DPTR(void *, funcp)) { |
e0c19803 | 2622 | IoFLAGS(datasv) &= ~IOf_FAKE_DIRP; |
4755096e | 2623 | IoANY(datasv) = (void *)NULL; |
3280af22 | 2624 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 2625 | |
16d20bd9 AD |
2626 | return; |
2627 | } | |
2628 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 2629 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
2630 | } |
2631 | ||
2632 | ||
1de9afcd RGS |
2633 | /* Invoke the idxth filter function for the current rsfp. */ |
2634 | /* maxlen 0 = read one text line */ | |
16d20bd9 | 2635 | I32 |
864dbfa3 | 2636 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
a0d0e21e | 2637 | { |
97aff369 | 2638 | dVAR; |
16d20bd9 AD |
2639 | filter_t funcp; |
2640 | SV *datasv = NULL; | |
f482118e NC |
2641 | /* This API is bad. It should have been using unsigned int for maxlen. |
2642 | Not sure if we want to change the API, but if not we should sanity | |
2643 | check the value here. */ | |
39cd7a59 NC |
2644 | const unsigned int correct_length |
2645 | = maxlen < 0 ? | |
2646 | #ifdef PERL_MICRO | |
2647 | 0x7FFFFFFF | |
2648 | #else | |
2649 | INT_MAX | |
2650 | #endif | |
2651 | : maxlen; | |
e50aee73 | 2652 | |
3280af22 | 2653 | if (!PL_rsfp_filters) |
16d20bd9 | 2654 | return -1; |
1de9afcd | 2655 | if (idx > AvFILLp(PL_rsfp_filters)) { /* Any more filters? */ |
16d20bd9 AD |
2656 | /* Provide a default input filter to make life easy. */ |
2657 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
2658 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2659 | "filter_read %d: from rsfp\n", idx)); | |
f482118e | 2660 | if (correct_length) { |
16d20bd9 AD |
2661 | /* Want a block */ |
2662 | int len ; | |
f54cb97a | 2663 | const int old_len = SvCUR(buf_sv); |
16d20bd9 AD |
2664 | |
2665 | /* ensure buf_sv is large enough */ | |
f482118e NC |
2666 | SvGROW(buf_sv, (STRLEN)(old_len + correct_length)) ; |
2667 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, | |
2668 | correct_length)) <= 0) { | |
3280af22 | 2669 | if (PerlIO_error(PL_rsfp)) |
37120919 AD |
2670 | return -1; /* error */ |
2671 | else | |
2672 | return 0 ; /* end of file */ | |
2673 | } | |
16d20bd9 AD |
2674 | SvCUR_set(buf_sv, old_len + len) ; |
2675 | } else { | |
2676 | /* Want a line */ | |
3280af22 NIS |
2677 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
2678 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
2679 | return -1; /* error */ |
2680 | else | |
2681 | return 0 ; /* end of file */ | |
2682 | } | |
16d20bd9 AD |
2683 | } |
2684 | return SvCUR(buf_sv); | |
2685 | } | |
2686 | /* Skip this filter slot if filter has been deleted */ | |
1de9afcd | 2687 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef) { |
f4c556ac GS |
2688 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2689 | "filter_read %d: skipped (filter deleted)\n", | |
2690 | idx)); | |
f482118e | 2691 | return FILTER_READ(idx+1, buf_sv, correct_length); /* recurse */ |
16d20bd9 AD |
2692 | } |
2693 | /* Get function pointer hidden within datasv */ | |
8141890a | 2694 | funcp = DPTR2FPTR(filter_t, IoANY(datasv)); |
f4c556ac GS |
2695 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2696 | "filter_read %d: via function %p (%s)\n", | |
ca0270c4 | 2697 | idx, (void*)datasv, SvPV_nolen_const(datasv))); |
16d20bd9 AD |
2698 | /* Call function. The function is expected to */ |
2699 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 2700 | /* Return: <0:error, =0:eof, >0:not eof */ |
f482118e | 2701 | return (*funcp)(aTHX_ idx, buf_sv, correct_length); |
16d20bd9 AD |
2702 | } |
2703 | ||
76e3520e | 2704 | STATIC char * |
cea2e8a9 | 2705 | S_filter_gets(pTHX_ register SV *sv, register PerlIO *fp, STRLEN append) |
16d20bd9 | 2706 | { |
97aff369 | 2707 | dVAR; |
c39cd008 | 2708 | #ifdef PERL_CR_FILTER |
3280af22 | 2709 | if (!PL_rsfp_filters) { |
c39cd008 | 2710 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
2711 | } |
2712 | #endif | |
3280af22 | 2713 | if (PL_rsfp_filters) { |
55497cff | 2714 | if (!append) |
2715 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
2716 | if (FILTER_READ(0, sv, 0) > 0) |
2717 | return ( SvPVX(sv) ) ; | |
2718 | else | |
bd61b366 | 2719 | return NULL ; |
16d20bd9 | 2720 | } |
9d116dd7 | 2721 | else |
fd049845 | 2722 | return (sv_gets(sv, fp, append)); |
a0d0e21e LW |
2723 | } |
2724 | ||
01ec43d0 | 2725 | STATIC HV * |
7fc63493 | 2726 | S_find_in_my_stash(pTHX_ const char *pkgname, I32 len) |
def3634b | 2727 | { |
97aff369 | 2728 | dVAR; |
def3634b GS |
2729 | GV *gv; |
2730 | ||
01ec43d0 | 2731 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
2732 | return PL_curstash; |
2733 | ||
2734 | if (len > 2 && | |
2735 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
90e5519e | 2736 | (gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVHV))) |
01ec43d0 GS |
2737 | { |
2738 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
2739 | } |
2740 | ||
2741 | /* use constant CLASS => 'MyClass' */ | |
c35e046a AL |
2742 | gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVCV); |
2743 | if (gv && GvCV(gv)) { | |
2744 | SV * const sv = cv_const_sv(GvCV(gv)); | |
2745 | if (sv) | |
83003860 | 2746 | pkgname = SvPV_nolen_const(sv); |
def3634b GS |
2747 | } |
2748 | ||
2749 | return gv_stashpv(pkgname, FALSE); | |
2750 | } | |
a0d0e21e | 2751 | |
5db06880 NC |
2752 | #ifdef PERL_MAD |
2753 | /* | |
2754 | * Perl_madlex | |
2755 | * The intent of this yylex wrapper is to minimize the changes to the | |
2756 | * tokener when we aren't interested in collecting madprops. It remains | |
2757 | * to be seen how successful this strategy will be... | |
2758 | */ | |
2759 | ||
2760 | int | |
2761 | Perl_madlex(pTHX) | |
2762 | { | |
2763 | int optype; | |
2764 | char *s = PL_bufptr; | |
2765 | ||
cd81e915 NC |
2766 | /* make sure PL_thiswhite is initialized */ |
2767 | PL_thiswhite = 0; | |
2768 | PL_thismad = 0; | |
5db06880 | 2769 | |
cd81e915 | 2770 | /* just do what yylex would do on pending identifier; leave PL_thiswhite alone */ |
5db06880 NC |
2771 | if (PL_pending_ident) |
2772 | return S_pending_ident(aTHX); | |
2773 | ||
2774 | /* previous token ate up our whitespace? */ | |
cd81e915 NC |
2775 | if (!PL_lasttoke && PL_nextwhite) { |
2776 | PL_thiswhite = PL_nextwhite; | |
2777 | PL_nextwhite = 0; | |
5db06880 NC |
2778 | } |
2779 | ||
2780 | /* isolate the token, and figure out where it is without whitespace */ | |
cd81e915 NC |
2781 | PL_realtokenstart = -1; |
2782 | PL_thistoken = 0; | |
5db06880 NC |
2783 | optype = yylex(); |
2784 | s = PL_bufptr; | |
cd81e915 | 2785 | assert(PL_curforce < 0); |
5db06880 | 2786 | |
cd81e915 NC |
2787 | if (!PL_thismad || PL_thismad->mad_key == '^') { /* not forced already? */ |
2788 | if (!PL_thistoken) { | |
2789 | if (PL_realtokenstart < 0 || !CopLINE(PL_curcop)) | |
2790 | PL_thistoken = newSVpvn("",0); | |
5db06880 | 2791 | else { |
c35e046a | 2792 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 | 2793 | PL_thistoken = newSVpvn(tstart, s - tstart); |
5db06880 NC |
2794 | } |
2795 | } | |
cd81e915 NC |
2796 | if (PL_thismad) /* install head */ |
2797 | CURMAD('X', PL_thistoken); | |
5db06880 NC |
2798 | } |
2799 | ||
2800 | /* last whitespace of a sublex? */ | |
cd81e915 NC |
2801 | if (optype == ')' && PL_endwhite) { |
2802 | CURMAD('X', PL_endwhite); | |
5db06880 NC |
2803 | } |
2804 | ||
cd81e915 | 2805 | if (!PL_thismad) { |
5db06880 NC |
2806 | |
2807 | /* if no whitespace and we're at EOF, bail. Otherwise fake EOF below. */ | |
cd81e915 NC |
2808 | if (!PL_thiswhite && !PL_endwhite && !optype) { |
2809 | sv_free(PL_thistoken); | |
2810 | PL_thistoken = 0; | |
5db06880 NC |
2811 | return 0; |
2812 | } | |
2813 | ||
2814 | /* put off final whitespace till peg */ | |
2815 | if (optype == ';' && !PL_rsfp) { | |
cd81e915 NC |
2816 | PL_nextwhite = PL_thiswhite; |
2817 | PL_thiswhite = 0; | |
5db06880 | 2818 | } |
cd81e915 NC |
2819 | else if (PL_thisopen) { |
2820 | CURMAD('q', PL_thisopen); | |
2821 | if (PL_thistoken) | |
2822 | sv_free(PL_thistoken); | |
2823 | PL_thistoken = 0; | |
5db06880 NC |
2824 | } |
2825 | else { | |
2826 | /* Store actual token text as madprop X */ | |
cd81e915 | 2827 | CURMAD('X', PL_thistoken); |
5db06880 NC |
2828 | } |
2829 | ||
cd81e915 | 2830 | if (PL_thiswhite) { |
5db06880 | 2831 | /* add preceding whitespace as madprop _ */ |
cd81e915 | 2832 | CURMAD('_', PL_thiswhite); |
5db06880 NC |
2833 | } |
2834 | ||
cd81e915 | 2835 | if (PL_thisstuff) { |
5db06880 | 2836 | /* add quoted material as madprop = */ |
cd81e915 | 2837 | CURMAD('=', PL_thisstuff); |
5db06880 NC |
2838 | } |
2839 | ||
cd81e915 | 2840 | if (PL_thisclose) { |
5db06880 | 2841 | /* add terminating quote as madprop Q */ |
cd81e915 | 2842 | CURMAD('Q', PL_thisclose); |
5db06880 NC |
2843 | } |
2844 | } | |
2845 | ||
2846 | /* special processing based on optype */ | |
2847 | ||
2848 | switch (optype) { | |
2849 | ||
2850 | /* opval doesn't need a TOKEN since it can already store mp */ | |
2851 | case WORD: | |
2852 | case METHOD: | |
2853 | case FUNCMETH: | |
2854 | case THING: | |
2855 | case PMFUNC: | |
2856 | case PRIVATEREF: | |
2857 | case FUNC0SUB: | |
2858 | case UNIOPSUB: | |
2859 | case LSTOPSUB: | |
2860 | if (yylval.opval) | |
cd81e915 NC |
2861 | append_madprops(PL_thismad, yylval.opval, 0); |
2862 | PL_thismad = 0; | |
5db06880 NC |
2863 | return optype; |
2864 | ||
2865 | /* fake EOF */ | |
2866 | case 0: | |
2867 | optype = PEG; | |
cd81e915 NC |
2868 | if (PL_endwhite) { |
2869 | addmad(newMADsv('p', PL_endwhite), &PL_thismad, 0); | |
2870 | PL_endwhite = 0; | |
5db06880 NC |
2871 | } |
2872 | break; | |
2873 | ||
2874 | case ']': | |
2875 | case '}': | |
cd81e915 | 2876 | if (PL_faketokens) |
5db06880 NC |
2877 | break; |
2878 | /* remember any fake bracket that lexer is about to discard */ | |
2879 | if (PL_lex_brackets == 1 && | |
2880 | ((expectation)PL_lex_brackstack[0] & XFAKEBRACK)) | |
2881 | { | |
2882 | s = PL_bufptr; | |
2883 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
2884 | s++; | |
2885 | if (*s == '}') { | |
cd81e915 NC |
2886 | PL_thiswhite = newSVpvn(PL_bufptr, ++s - PL_bufptr); |
2887 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
2888 | PL_thiswhite = 0; | |
5db06880 NC |
2889 | PL_bufptr = s - 1; |
2890 | break; /* don't bother looking for trailing comment */ | |
2891 | } | |
2892 | else | |
2893 | s = PL_bufptr; | |
2894 | } | |
2895 | if (optype == ']') | |
2896 | break; | |
2897 | /* FALLTHROUGH */ | |
2898 | ||
2899 | /* attach a trailing comment to its statement instead of next token */ | |
2900 | case ';': | |
cd81e915 | 2901 | if (PL_faketokens) |
5db06880 NC |
2902 | break; |
2903 | if (PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == optype) { | |
2904 | s = PL_bufptr; | |
2905 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
2906 | s++; | |
2907 | if (*s == '\n' || *s == '#') { | |
2908 | while (s < PL_bufend && *s != '\n') | |
2909 | s++; | |
2910 | if (s < PL_bufend) | |
2911 | s++; | |
cd81e915 NC |
2912 | PL_thiswhite = newSVpvn(PL_bufptr, s - PL_bufptr); |
2913 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
2914 | PL_thiswhite = 0; | |
5db06880 NC |
2915 | PL_bufptr = s; |
2916 | } | |
2917 | } | |
2918 | break; | |
2919 | ||
2920 | /* pval */ | |
2921 | case LABEL: | |
2922 | break; | |
2923 | ||
2924 | /* ival */ | |
2925 | default: | |
2926 | break; | |
2927 | ||
2928 | } | |
2929 | ||
2930 | /* Create new token struct. Note: opvals return early above. */ | |
cd81e915 NC |
2931 | yylval.tkval = newTOKEN(optype, yylval, PL_thismad); |
2932 | PL_thismad = 0; | |
5db06880 NC |
2933 | return optype; |
2934 | } | |
2935 | #endif | |
2936 | ||
468aa647 | 2937 | STATIC char * |
cc6ed77d | 2938 | S_tokenize_use(pTHX_ int is_use, char *s) { |
97aff369 | 2939 | dVAR; |
468aa647 RGS |
2940 | if (PL_expect != XSTATE) |
2941 | yyerror(Perl_form(aTHX_ "\"%s\" not allowed in expression", | |
2942 | is_use ? "use" : "no")); | |
29595ff2 | 2943 | s = SKIPSPACE1(s); |
468aa647 RGS |
2944 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { |
2945 | s = force_version(s, TRUE); | |
29595ff2 | 2946 | if (*s == ';' || (s = SKIPSPACE1(s), *s == ';')) { |
cd81e915 | 2947 | start_force(PL_curforce); |
9ded7720 | 2948 | NEXTVAL_NEXTTOKE.opval = NULL; |
468aa647 RGS |
2949 | force_next(WORD); |
2950 | } | |
2951 | else if (*s == 'v') { | |
2952 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
2953 | s = force_version(s, FALSE); | |
2954 | } | |
2955 | } | |
2956 | else { | |
2957 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
2958 | s = force_version(s, FALSE); | |
2959 | } | |
2960 | yylval.ival = is_use; | |
2961 | return s; | |
2962 | } | |
748a9306 | 2963 | #ifdef DEBUGGING |
27da23d5 | 2964 | static const char* const exp_name[] = |
09bef843 | 2965 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
27308ded | 2966 | "ATTRTERM", "TERMBLOCK", "TERMORDORDOR" |
09bef843 | 2967 | }; |
748a9306 | 2968 | #endif |
463ee0b2 | 2969 | |
02aa26ce NT |
2970 | /* |
2971 | yylex | |
2972 | ||
2973 | Works out what to call the token just pulled out of the input | |
2974 | stream. The yacc parser takes care of taking the ops we return and | |
2975 | stitching them into a tree. | |
2976 | ||
2977 | Returns: | |
2978 | PRIVATEREF | |
2979 | ||
2980 | Structure: | |
2981 | if read an identifier | |
2982 | if we're in a my declaration | |
2983 | croak if they tried to say my($foo::bar) | |
2984 | build the ops for a my() declaration | |
2985 | if it's an access to a my() variable | |
2986 | are we in a sort block? | |
2987 | croak if my($a); $a <=> $b | |
2988 | build ops for access to a my() variable | |
2989 | if in a dq string, and they've said @foo and we can't find @foo | |
2990 | croak | |
2991 | build ops for a bareword | |
2992 | if we already built the token before, use it. | |
2993 | */ | |
2994 | ||
20141f0e | 2995 | |
dba4d153 JH |
2996 | #ifdef __SC__ |
2997 | #pragma segment Perl_yylex | |
2998 | #endif | |
dba4d153 | 2999 | int |
dba4d153 | 3000 | Perl_yylex(pTHX) |
20141f0e | 3001 | { |
97aff369 | 3002 | dVAR; |
3afc138a | 3003 | register char *s = PL_bufptr; |
378cc40b | 3004 | register char *d; |
463ee0b2 | 3005 | STRLEN len; |
aa7440fb | 3006 | bool bof = FALSE; |
a687059c | 3007 | |
bbf60fe6 | 3008 | DEBUG_T( { |
396482e1 | 3009 | SV* tmp = newSVpvs(""); |
b6007c36 DM |
3010 | PerlIO_printf(Perl_debug_log, "### %"IVdf":LEX_%s/X%s %s\n", |
3011 | (IV)CopLINE(PL_curcop), | |
3012 | lex_state_names[PL_lex_state], | |
3013 | exp_name[PL_expect], | |
3014 | pv_display(tmp, s, strlen(s), 0, 60)); | |
3015 | SvREFCNT_dec(tmp); | |
bbf60fe6 | 3016 | } ); |
02aa26ce | 3017 | /* check if there's an identifier for us to look at */ |
ba979b31 | 3018 | if (PL_pending_ident) |
bbf60fe6 | 3019 | return REPORT(S_pending_ident(aTHX)); |
bbce6d69 | 3020 | |
02aa26ce NT |
3021 | /* no identifier pending identification */ |
3022 | ||
3280af22 | 3023 | switch (PL_lex_state) { |
79072805 LW |
3024 | #ifdef COMMENTARY |
3025 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
3026 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
3027 | break; | |
3028 | #endif | |
3029 | ||
09bef843 | 3030 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 3031 | case LEX_KNOWNEXT: |
5db06880 NC |
3032 | #ifdef PERL_MAD |
3033 | PL_lasttoke--; | |
3034 | yylval = PL_nexttoke[PL_lasttoke].next_val; | |
3035 | if (PL_madskills) { | |
cd81e915 | 3036 | PL_thismad = PL_nexttoke[PL_lasttoke].next_mad; |
5db06880 | 3037 | PL_nexttoke[PL_lasttoke].next_mad = 0; |
cd81e915 NC |
3038 | if (PL_thismad && PL_thismad->mad_key == '_') { |
3039 | PL_thiswhite = (SV*)PL_thismad->mad_val; | |
3040 | PL_thismad->mad_val = 0; | |
3041 | mad_free(PL_thismad); | |
3042 | PL_thismad = 0; | |
5db06880 NC |
3043 | } |
3044 | } | |
3045 | if (!PL_lasttoke) { | |
3046 | PL_lex_state = PL_lex_defer; | |
3047 | PL_expect = PL_lex_expect; | |
3048 | PL_lex_defer = LEX_NORMAL; | |
3049 | if (!PL_nexttoke[PL_lasttoke].next_type) | |
3050 | return yylex(); | |
3051 | } | |
3052 | #else | |
3280af22 | 3053 | PL_nexttoke--; |
5db06880 | 3054 | yylval = PL_nextval[PL_nexttoke]; |
3280af22 NIS |
3055 | if (!PL_nexttoke) { |
3056 | PL_lex_state = PL_lex_defer; | |
3057 | PL_expect = PL_lex_expect; | |
3058 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 3059 | } |
5db06880 NC |
3060 | #endif |
3061 | #ifdef PERL_MAD | |
3062 | /* FIXME - can these be merged? */ | |
3063 | return(PL_nexttoke[PL_lasttoke].next_type); | |
3064 | #else | |
bbf60fe6 | 3065 | return REPORT(PL_nexttype[PL_nexttoke]); |
5db06880 | 3066 | #endif |
79072805 | 3067 | |
02aa26ce | 3068 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 3069 | when we get here, PL_bufptr is at the \ |
02aa26ce | 3070 | */ |
79072805 LW |
3071 | case LEX_INTERPCASEMOD: |
3072 | #ifdef DEBUGGING | |
3280af22 | 3073 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 3074 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 3075 | #endif |
02aa26ce | 3076 | /* handle \E or end of string */ |
3280af22 | 3077 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
02aa26ce | 3078 | /* if at a \E */ |
3280af22 | 3079 | if (PL_lex_casemods) { |
f54cb97a | 3080 | const char oldmod = PL_lex_casestack[--PL_lex_casemods]; |
3280af22 | 3081 | PL_lex_casestack[PL_lex_casemods] = '\0'; |
02aa26ce | 3082 | |
3792a11b NC |
3083 | if (PL_bufptr != PL_bufend |
3084 | && (oldmod == 'L' || oldmod == 'U' || oldmod == 'Q')) { | |
3280af22 NIS |
3085 | PL_bufptr += 2; |
3086 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3087 | #ifdef PERL_MAD |
3088 | if (PL_madskills) | |
cd81e915 | 3089 | PL_thistoken = newSVpvn("\\E",2); |
5db06880 | 3090 | #endif |
a0d0e21e | 3091 | } |
bbf60fe6 | 3092 | return REPORT(')'); |
79072805 | 3093 | } |
5db06880 NC |
3094 | #ifdef PERL_MAD |
3095 | while (PL_bufptr != PL_bufend && | |
3096 | PL_bufptr[0] == '\\' && PL_bufptr[1] == 'E') { | |
cd81e915 NC |
3097 | if (!PL_thiswhite) |
3098 | PL_thiswhite = newSVpvn("",0); | |
3099 | sv_catpvn(PL_thiswhite, PL_bufptr, 2); | |
5db06880 NC |
3100 | PL_bufptr += 2; |
3101 | } | |
3102 | #else | |
3280af22 NIS |
3103 | if (PL_bufptr != PL_bufend) |
3104 | PL_bufptr += 2; | |
5db06880 | 3105 | #endif |
3280af22 | 3106 | PL_lex_state = LEX_INTERPCONCAT; |
cea2e8a9 | 3107 | return yylex(); |
79072805 LW |
3108 | } |
3109 | else { | |
607df283 | 3110 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3111 | "### Saw case modifier\n"); }); |
3280af22 | 3112 | s = PL_bufptr + 1; |
6e909404 | 3113 | if (s[1] == '\\' && s[2] == 'E') { |
5db06880 | 3114 | #ifdef PERL_MAD |
cd81e915 NC |
3115 | if (!PL_thiswhite) |
3116 | PL_thiswhite = newSVpvn("",0); | |
3117 | sv_catpvn(PL_thiswhite, PL_bufptr, 4); | |
5db06880 | 3118 | #endif |
89122651 | 3119 | PL_bufptr = s + 3; |
6e909404 JH |
3120 | PL_lex_state = LEX_INTERPCONCAT; |
3121 | return yylex(); | |
a0d0e21e | 3122 | } |
6e909404 | 3123 | else { |
90771dc0 | 3124 | I32 tmp; |
5db06880 NC |
3125 | if (!PL_madskills) /* when just compiling don't need correct */ |
3126 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
3127 | tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */ | |
3792a11b | 3128 | if ((*s == 'L' || *s == 'U') && |
6e909404 JH |
3129 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) { |
3130 | PL_lex_casestack[--PL_lex_casemods] = '\0'; | |
bbf60fe6 | 3131 | return REPORT(')'); |
6e909404 JH |
3132 | } |
3133 | if (PL_lex_casemods > 10) | |
3134 | Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
3135 | PL_lex_casestack[PL_lex_casemods++] = *s; | |
3136 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
3137 | PL_lex_state = LEX_INTERPCONCAT; | |
cd81e915 | 3138 | start_force(PL_curforce); |
9ded7720 | 3139 | NEXTVAL_NEXTTOKE.ival = 0; |
6e909404 | 3140 | force_next('('); |
cd81e915 | 3141 | start_force(PL_curforce); |
6e909404 | 3142 | if (*s == 'l') |
9ded7720 | 3143 | NEXTVAL_NEXTTOKE.ival = OP_LCFIRST; |
6e909404 | 3144 | else if (*s == 'u') |
9ded7720 | 3145 | NEXTVAL_NEXTTOKE.ival = OP_UCFIRST; |
6e909404 | 3146 | else if (*s == 'L') |
9ded7720 | 3147 | NEXTVAL_NEXTTOKE.ival = OP_LC; |
6e909404 | 3148 | else if (*s == 'U') |
9ded7720 | 3149 | NEXTVAL_NEXTTOKE.ival = OP_UC; |
6e909404 | 3150 | else if (*s == 'Q') |
9ded7720 | 3151 | NEXTVAL_NEXTTOKE.ival = OP_QUOTEMETA; |
6e909404 JH |
3152 | else |
3153 | Perl_croak(aTHX_ "panic: yylex"); | |
5db06880 | 3154 | if (PL_madskills) { |
d4c19fe8 | 3155 | SV* const tmpsv = newSVpvn("",0); |
5db06880 NC |
3156 | Perl_sv_catpvf(aTHX_ tmpsv, "\\%c", *s); |
3157 | curmad('_', tmpsv); | |
3158 | } | |
6e909404 | 3159 | PL_bufptr = s + 1; |
a0d0e21e | 3160 | } |
79072805 | 3161 | force_next(FUNC); |
3280af22 NIS |
3162 | if (PL_lex_starts) { |
3163 | s = PL_bufptr; | |
3164 | PL_lex_starts = 0; | |
5db06880 NC |
3165 | #ifdef PERL_MAD |
3166 | if (PL_madskills) { | |
cd81e915 NC |
3167 | if (PL_thistoken) |
3168 | sv_free(PL_thistoken); | |
3169 | PL_thistoken = newSVpvn("",0); | |
5db06880 NC |
3170 | } |
3171 | #endif | |
131b3ad0 DM |
3172 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3173 | if (PL_lex_casemods == 1 && PL_lex_inpat) | |
3174 | OPERATOR(','); | |
3175 | else | |
3176 | Aop(OP_CONCAT); | |
79072805 LW |
3177 | } |
3178 | else | |
cea2e8a9 | 3179 | return yylex(); |
79072805 LW |
3180 | } |
3181 | ||
55497cff | 3182 | case LEX_INTERPPUSH: |
bbf60fe6 | 3183 | return REPORT(sublex_push()); |
55497cff | 3184 | |
79072805 | 3185 | case LEX_INTERPSTART: |
3280af22 | 3186 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3187 | return REPORT(sublex_done()); |
607df283 | 3188 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3189 | "### Interpolated variable\n"); }); |
3280af22 NIS |
3190 | PL_expect = XTERM; |
3191 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
3192 | PL_lex_state = LEX_INTERPNORMAL; | |
3193 | if (PL_lex_dojoin) { | |
cd81e915 | 3194 | start_force(PL_curforce); |
9ded7720 | 3195 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3196 | force_next(','); |
cd81e915 | 3197 | start_force(PL_curforce); |
a0d0e21e | 3198 | force_ident("\"", '$'); |
cd81e915 | 3199 | start_force(PL_curforce); |
9ded7720 | 3200 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3201 | force_next('$'); |
cd81e915 | 3202 | start_force(PL_curforce); |
9ded7720 | 3203 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3204 | force_next('('); |
cd81e915 | 3205 | start_force(PL_curforce); |
9ded7720 | 3206 | NEXTVAL_NEXTTOKE.ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
3207 | force_next(FUNC); |
3208 | } | |
3280af22 NIS |
3209 | if (PL_lex_starts++) { |
3210 | s = PL_bufptr; | |
5db06880 NC |
3211 | #ifdef PERL_MAD |
3212 | if (PL_madskills) { | |
cd81e915 NC |
3213 | if (PL_thistoken) |
3214 | sv_free(PL_thistoken); | |
3215 | PL_thistoken = newSVpvn("",0); | |
5db06880 NC |
3216 | } |
3217 | #endif | |
131b3ad0 DM |
3218 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3219 | if (!PL_lex_casemods && PL_lex_inpat) | |
3220 | OPERATOR(','); | |
3221 | else | |
3222 | Aop(OP_CONCAT); | |
79072805 | 3223 | } |
cea2e8a9 | 3224 | return yylex(); |
79072805 LW |
3225 | |
3226 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
3227 | if (intuit_more(PL_bufptr)) { |
3228 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
3229 | break; |
3230 | } | |
3231 | /* FALL THROUGH */ | |
3232 | ||
3233 | case LEX_INTERPEND: | |
3280af22 NIS |
3234 | if (PL_lex_dojoin) { |
3235 | PL_lex_dojoin = FALSE; | |
3236 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3237 | #ifdef PERL_MAD |
3238 | if (PL_madskills) { | |
cd81e915 NC |
3239 | if (PL_thistoken) |
3240 | sv_free(PL_thistoken); | |
3241 | PL_thistoken = newSVpvn("",0); | |
5db06880 NC |
3242 | } |
3243 | #endif | |
bbf60fe6 | 3244 | return REPORT(')'); |
79072805 | 3245 | } |
43a16006 | 3246 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 3247 | && SvEVALED(PL_lex_repl)) |
43a16006 | 3248 | { |
e9fa98b2 | 3249 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 3250 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
a0714e2c | 3251 | PL_lex_repl = NULL; |
e9fa98b2 | 3252 | } |
79072805 LW |
3253 | /* FALLTHROUGH */ |
3254 | case LEX_INTERPCONCAT: | |
3255 | #ifdef DEBUGGING | |
3280af22 | 3256 | if (PL_lex_brackets) |
cea2e8a9 | 3257 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 3258 | #endif |
3280af22 | 3259 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3260 | return REPORT(sublex_done()); |
79072805 | 3261 | |
3280af22 NIS |
3262 | if (SvIVX(PL_linestr) == '\'') { |
3263 | SV *sv = newSVsv(PL_linestr); | |
3264 | if (!PL_lex_inpat) | |
76e3520e | 3265 | sv = tokeq(sv); |
3280af22 | 3266 | else if ( PL_hints & HINT_NEW_RE ) |
b3ac6de7 | 3267 | sv = new_constant(NULL, 0, "qr", sv, sv, "q"); |
79072805 | 3268 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 3269 | s = PL_bufend; |
79072805 LW |
3270 | } |
3271 | else { | |
3280af22 | 3272 | s = scan_const(PL_bufptr); |
79072805 | 3273 | if (*s == '\\') |
3280af22 | 3274 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 3275 | else |
3280af22 | 3276 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
3277 | } |
3278 | ||
3280af22 | 3279 | if (s != PL_bufptr) { |
cd81e915 | 3280 | start_force(PL_curforce); |
5db06880 NC |
3281 | if (PL_madskills) { |
3282 | curmad('X', newSVpvn(PL_bufptr,s-PL_bufptr)); | |
3283 | } | |
9ded7720 | 3284 | NEXTVAL_NEXTTOKE = yylval; |
3280af22 | 3285 | PL_expect = XTERM; |
79072805 | 3286 | force_next(THING); |
131b3ad0 | 3287 | if (PL_lex_starts++) { |
5db06880 NC |
3288 | #ifdef PERL_MAD |
3289 | if (PL_madskills) { | |
cd81e915 NC |
3290 | if (PL_thistoken) |
3291 | sv_free(PL_thistoken); | |
3292 | PL_thistoken = newSVpvn("",0); | |
5db06880 NC |
3293 | } |
3294 | #endif | |
131b3ad0 DM |
3295 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3296 | if (!PL_lex_casemods && PL_lex_inpat) | |
3297 | OPERATOR(','); | |
3298 | else | |
3299 | Aop(OP_CONCAT); | |
3300 | } | |
79072805 | 3301 | else { |
3280af22 | 3302 | PL_bufptr = s; |
cea2e8a9 | 3303 | return yylex(); |
79072805 LW |
3304 | } |
3305 | } | |
3306 | ||
cea2e8a9 | 3307 | return yylex(); |
a0d0e21e | 3308 | case LEX_FORMLINE: |
3280af22 NIS |
3309 | PL_lex_state = LEX_NORMAL; |
3310 | s = scan_formline(PL_bufptr); | |
3311 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
3312 | goto rightbracket; |
3313 | OPERATOR(';'); | |
79072805 LW |
3314 | } |
3315 | ||
3280af22 NIS |
3316 | s = PL_bufptr; |
3317 | PL_oldoldbufptr = PL_oldbufptr; | |
3318 | PL_oldbufptr = s; | |
463ee0b2 LW |
3319 | |
3320 | retry: | |
5db06880 | 3321 | #ifdef PERL_MAD |
cd81e915 NC |
3322 | if (PL_thistoken) { |
3323 | sv_free(PL_thistoken); | |
3324 | PL_thistoken = 0; | |
5db06880 | 3325 | } |
cd81e915 | 3326 | PL_realtokenstart = s - SvPVX(PL_linestr); /* assume but undo on ws */ |
5db06880 | 3327 | #endif |
378cc40b LW |
3328 | switch (*s) { |
3329 | default: | |
7e2040f0 | 3330 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 3331 | goto keylookup; |
cea2e8a9 | 3332 | Perl_croak(aTHX_ "Unrecognized character \\x%02X", *s & 255); |
e929a76b LW |
3333 | case 4: |
3334 | case 26: | |
3335 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 3336 | case 0: |
5db06880 NC |
3337 | #ifdef PERL_MAD |
3338 | if (PL_madskills) | |
cd81e915 | 3339 | PL_faketokens = 0; |
5db06880 | 3340 | #endif |
3280af22 NIS |
3341 | if (!PL_rsfp) { |
3342 | PL_last_uni = 0; | |
3343 | PL_last_lop = 0; | |
c5ee2135 | 3344 | if (PL_lex_brackets) { |
0bd48802 AL |
3345 | yyerror(PL_lex_formbrack |
3346 | ? "Format not terminated" | |
3347 | : "Missing right curly or square bracket"); | |
c5ee2135 | 3348 | } |
4e553d73 | 3349 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 3350 | "### Tokener got EOF\n"); |
5f80b19c | 3351 | } ); |
79072805 | 3352 | TOKEN(0); |
463ee0b2 | 3353 | } |
3280af22 | 3354 | if (s++ < PL_bufend) |
a687059c | 3355 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
3356 | PL_last_uni = 0; |
3357 | PL_last_lop = 0; | |
3358 | if (!PL_in_eval && !PL_preambled) { | |
3359 | PL_preambled = TRUE; | |
5db06880 NC |
3360 | #ifdef PERL_MAD |
3361 | if (PL_madskills) | |
cd81e915 | 3362 | PL_faketokens = 1; |
5db06880 | 3363 | #endif |
3280af22 NIS |
3364 | sv_setpv(PL_linestr,incl_perldb()); |
3365 | if (SvCUR(PL_linestr)) | |
396482e1 | 3366 | sv_catpvs(PL_linestr,";"); |
3280af22 NIS |
3367 | if (PL_preambleav){ |
3368 | while(AvFILLp(PL_preambleav) >= 0) { | |
3369 | SV *tmpsv = av_shift(PL_preambleav); | |
3370 | sv_catsv(PL_linestr, tmpsv); | |
396482e1 | 3371 | sv_catpvs(PL_linestr, ";"); |
91b7def8 | 3372 | sv_free(tmpsv); |
3373 | } | |
3280af22 NIS |
3374 | sv_free((SV*)PL_preambleav); |
3375 | PL_preambleav = NULL; | |
91b7def8 | 3376 | } |
3280af22 | 3377 | if (PL_minus_n || PL_minus_p) { |
396482e1 | 3378 | sv_catpvs(PL_linestr, "LINE: while (<>) {"); |
3280af22 | 3379 | if (PL_minus_l) |
396482e1 | 3380 | sv_catpvs(PL_linestr,"chomp;"); |
3280af22 | 3381 | if (PL_minus_a) { |
3280af22 | 3382 | if (PL_minus_F) { |
3792a11b NC |
3383 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
3384 | || *PL_splitstr == '"') | |
3280af22 | 3385 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 3386 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 3387 | else { |
c8ef6a4b NC |
3388 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
3389 | bytes can be used as quoting characters. :-) */ | |
dd374669 | 3390 | const char *splits = PL_splitstr; |
91d456ae | 3391 | sv_catpvs(PL_linestr, "our @F=split(q\0"); |
48c4c863 NC |
3392 | do { |
3393 | /* Need to \ \s */ | |
dd374669 AL |
3394 | if (*splits == '\\') |
3395 | sv_catpvn(PL_linestr, splits, 1); | |
3396 | sv_catpvn(PL_linestr, splits, 1); | |
3397 | } while (*splits++); | |
48c4c863 NC |
3398 | /* This loop will embed the trailing NUL of |
3399 | PL_linestr as the last thing it does before | |
3400 | terminating. */ | |
396482e1 | 3401 | sv_catpvs(PL_linestr, ");"); |
54310121 | 3402 | } |
2304df62 AD |
3403 | } |
3404 | else | |
396482e1 | 3405 | sv_catpvs(PL_linestr,"our @F=split(' ');"); |
2304df62 | 3406 | } |
79072805 | 3407 | } |
bc9b29db | 3408 | if (PL_minus_E) |
396482e1 GA |
3409 | sv_catpvs(PL_linestr,"use feature ':5.10';"); |
3410 | sv_catpvs(PL_linestr, "\n"); | |
3280af22 NIS |
3411 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3412 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3413 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3414 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
561b68a9 | 3415 | SV * const sv = newSV(0); |
a0d0e21e LW |
3416 | |
3417 | sv_upgrade(sv, SVt_PVMG); | |
3280af22 | 3418 | sv_setsv(sv,PL_linestr); |
0ac0412a | 3419 | (void)SvIOK_on(sv); |
45977657 | 3420 | SvIV_set(sv, 0); |
36c7798d | 3421 | av_store(CopFILEAVx(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
a0d0e21e | 3422 | } |
79072805 | 3423 | goto retry; |
a687059c | 3424 | } |
e929a76b | 3425 | do { |
aa7440fb | 3426 | bof = PL_rsfp ? TRUE : FALSE; |
bd61b366 | 3427 | if ((s = filter_gets(PL_linestr, PL_rsfp, 0)) == NULL) { |
7e28d3af | 3428 | fake_eof: |
5db06880 | 3429 | #ifdef PERL_MAD |
cd81e915 | 3430 | PL_realtokenstart = -1; |
5db06880 | 3431 | #endif |
7e28d3af JH |
3432 | if (PL_rsfp) { |
3433 | if (PL_preprocess && !PL_in_eval) | |
3434 | (void)PerlProc_pclose(PL_rsfp); | |
3435 | else if ((PerlIO *)PL_rsfp == PerlIO_stdin()) | |
3436 | PerlIO_clearerr(PL_rsfp); | |
3437 | else | |
3438 | (void)PerlIO_close(PL_rsfp); | |
4608196e | 3439 | PL_rsfp = NULL; |
7e28d3af JH |
3440 | PL_doextract = FALSE; |
3441 | } | |
3442 | if (!PL_in_eval && (PL_minus_n || PL_minus_p)) { | |
5db06880 NC |
3443 | #ifdef PERL_MAD |
3444 | if (PL_madskills) | |
cd81e915 | 3445 | PL_faketokens = 1; |
5db06880 | 3446 | #endif |
a23c4656 NC |
3447 | sv_setpv(PL_linestr,PL_minus_p |
3448 | ? ";}continue{print;}" : ";}"); | |
7e28d3af JH |
3449 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3450 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3451 | PL_last_lop = PL_last_uni = NULL; |
7e28d3af JH |
3452 | PL_minus_n = PL_minus_p = 0; |
3453 | goto retry; | |
3454 | } | |
3455 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
bd61b366 | 3456 | PL_last_lop = PL_last_uni = NULL; |
c69006e4 | 3457 | sv_setpvn(PL_linestr,"",0); |
7e28d3af JH |
3458 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ |
3459 | } | |
7aa207d6 JH |
3460 | /* If it looks like the start of a BOM or raw UTF-16, |
3461 | * check if it in fact is. */ | |
3462 | else if (bof && | |
3463 | (*s == 0 || | |
3464 | *(U8*)s == 0xEF || | |
3465 | *(U8*)s >= 0xFE || | |
3466 | s[1] == 0)) { | |
226017aa | 3467 | #ifdef PERLIO_IS_STDIO |
e3f494f1 JH |
3468 | # ifdef __GNU_LIBRARY__ |
3469 | # if __GNU_LIBRARY__ == 1 /* Linux glibc5 */ | |
226017aa DD |
3470 | # define FTELL_FOR_PIPE_IS_BROKEN |
3471 | # endif | |
e3f494f1 JH |
3472 | # else |
3473 | # ifdef __GLIBC__ | |
3474 | # if __GLIBC__ == 1 /* maybe some glibc5 release had it like this? */ | |
3475 | # define FTELL_FOR_PIPE_IS_BROKEN | |
3476 | # endif | |
3477 | # endif | |
226017aa DD |
3478 | # endif |
3479 | #endif | |
3480 | #ifdef FTELL_FOR_PIPE_IS_BROKEN | |
3481 | /* This loses the possibility to detect the bof | |
3482 | * situation on perl -P when the libc5 is being used. | |
3483 | * Workaround? Maybe attach some extra state to PL_rsfp? | |
3484 | */ | |
3485 | if (!PL_preprocess) | |
7e28d3af | 3486 | bof = PerlIO_tell(PL_rsfp) == SvCUR(PL_linestr); |
226017aa | 3487 | #else |
eb160463 | 3488 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
226017aa | 3489 | #endif |
7e28d3af | 3490 | if (bof) { |
3280af22 | 3491 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 3492 | s = swallow_bom((U8*)s); |
e929a76b | 3493 | } |
378cc40b | 3494 | } |
3280af22 | 3495 | if (PL_doextract) { |
a0d0e21e | 3496 | /* Incest with pod. */ |
5db06880 NC |
3497 | #ifdef PERL_MAD |
3498 | if (PL_madskills) | |
cd81e915 | 3499 | sv_catsv(PL_thiswhite, PL_linestr); |
5db06880 | 3500 | #endif |
a0d0e21e | 3501 | if (*s == '=' && strnEQ(s, "=cut", 4)) { |
c69006e4 | 3502 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3503 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3504 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3505 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3506 | PL_doextract = FALSE; |
a0d0e21e | 3507 | } |
4e553d73 | 3508 | } |
463ee0b2 | 3509 | incline(s); |
3280af22 NIS |
3510 | } while (PL_doextract); |
3511 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
3512 | if (PERLDB_LINE && PL_curstash != PL_debstash) { | |
561b68a9 | 3513 | SV * const sv = newSV(0); |
a687059c | 3514 | |
93a17b20 | 3515 | sv_upgrade(sv, SVt_PVMG); |
3280af22 | 3516 | sv_setsv(sv,PL_linestr); |
0ac0412a | 3517 | (void)SvIOK_on(sv); |
45977657 | 3518 | SvIV_set(sv, 0); |
36c7798d | 3519 | av_store(CopFILEAVx(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
a687059c | 3520 | } |
3280af22 | 3521 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 3522 | PL_last_lop = PL_last_uni = NULL; |
57843af0 | 3523 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 3524 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 3525 | s++; |
a0d0e21e | 3526 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 3527 | s++; |
5db06880 NC |
3528 | #ifdef PERL_MAD |
3529 | if (PL_madskills) | |
cd81e915 | 3530 | PL_thiswhite = newSVpvn(PL_linestart, s - PL_linestart); |
5db06880 | 3531 | #endif |
bd61b366 | 3532 | d = NULL; |
3280af22 | 3533 | if (!PL_in_eval) { |
44a8e56a | 3534 | if (*s == '#' && *(s+1) == '!') |
3535 | d = s + 2; | |
3536 | #ifdef ALTERNATE_SHEBANG | |
3537 | else { | |
bfed75c6 | 3538 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 3539 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
3540 | d = s + (sizeof(as) - 1); | |
3541 | } | |
3542 | #endif /* ALTERNATE_SHEBANG */ | |
3543 | } | |
3544 | if (d) { | |
b8378b72 | 3545 | char *ipath; |
774d564b | 3546 | char *ipathend; |
b8378b72 | 3547 | |
774d564b | 3548 | while (isSPACE(*d)) |
b8378b72 CS |
3549 | d++; |
3550 | ipath = d; | |
774d564b | 3551 | while (*d && !isSPACE(*d)) |
3552 | d++; | |
3553 | ipathend = d; | |
3554 | ||
3555 | #ifdef ARG_ZERO_IS_SCRIPT | |
3556 | if (ipathend > ipath) { | |
3557 | /* | |
3558 | * HP-UX (at least) sets argv[0] to the script name, | |
3559 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
3560 | * at least, set argv[0] to the basename of the Perl | |
3561 | * interpreter. So, having found "#!", we'll set it right. | |
3562 | */ | |
fafc274c NC |
3563 | SV * const x = GvSV(gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, |
3564 | SVt_PV)); /* $^X */ | |
774d564b | 3565 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 3566 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 3567 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 3568 | SvSETMAGIC(x); |
3569 | } | |
556c1dec JH |
3570 | else { |
3571 | STRLEN blen; | |
3572 | STRLEN llen; | |
cfd0369c | 3573 | const char *bstart = SvPV_const(CopFILESV(PL_curcop),blen); |
9d4ba2ae | 3574 | const char * const lstart = SvPV_const(x,llen); |
556c1dec JH |
3575 | if (llen < blen) { |
3576 | bstart += blen - llen; | |
3577 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
3578 | sv_setpvn(x, ipath, ipathend - ipath); | |
3579 | SvSETMAGIC(x); | |
3580 | } | |
3581 | } | |
3582 | } | |
774d564b | 3583 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 3584 | } |
774d564b | 3585 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
3586 | |
3587 | /* | |
3588 | * Look for options. | |
3589 | */ | |
748a9306 | 3590 | d = instr(s,"perl -"); |
84e30d1a | 3591 | if (!d) { |
748a9306 | 3592 | d = instr(s,"perl"); |
84e30d1a GS |
3593 | #if defined(DOSISH) |
3594 | /* avoid getting into infinite loops when shebang | |
3595 | * line contains "Perl" rather than "perl" */ | |
3596 | if (!d) { | |
3597 | for (d = ipathend-4; d >= ipath; --d) { | |
3598 | if ((*d == 'p' || *d == 'P') | |
3599 | && !ibcmp(d, "perl", 4)) | |
3600 | { | |
3601 | break; | |
3602 | } | |
3603 | } | |
3604 | if (d < ipath) | |
bd61b366 | 3605 | d = NULL; |
84e30d1a GS |
3606 | } |
3607 | #endif | |
3608 | } | |
44a8e56a | 3609 | #ifdef ALTERNATE_SHEBANG |
3610 | /* | |
3611 | * If the ALTERNATE_SHEBANG on this system starts with a | |
3612 | * character that can be part of a Perl expression, then if | |
3613 | * we see it but not "perl", we're probably looking at the | |
3614 | * start of Perl code, not a request to hand off to some | |
3615 | * other interpreter. Similarly, if "perl" is there, but | |
3616 | * not in the first 'word' of the line, we assume the line | |
3617 | * contains the start of the Perl program. | |
44a8e56a | 3618 | */ |
3619 | if (d && *s != '#') { | |
f54cb97a | 3620 | const char *c = ipath; |
44a8e56a | 3621 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
3622 | c++; | |
3623 | if (c < d) | |
bd61b366 | 3624 | d = NULL; /* "perl" not in first word; ignore */ |
44a8e56a | 3625 | else |
3626 | *s = '#'; /* Don't try to parse shebang line */ | |
3627 | } | |
774d564b | 3628 | #endif /* ALTERNATE_SHEBANG */ |
bf4acbe4 | 3629 | #ifndef MACOS_TRADITIONAL |
748a9306 | 3630 | if (!d && |
44a8e56a | 3631 | *s == '#' && |
774d564b | 3632 | ipathend > ipath && |
3280af22 | 3633 | !PL_minus_c && |
748a9306 | 3634 | !instr(s,"indir") && |
3280af22 | 3635 | instr(PL_origargv[0],"perl")) |
748a9306 | 3636 | { |
27da23d5 | 3637 | dVAR; |
9f68db38 | 3638 | char **newargv; |
9f68db38 | 3639 | |
774d564b | 3640 | *ipathend = '\0'; |
3641 | s = ipathend + 1; | |
3280af22 | 3642 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 3643 | s++; |
3280af22 | 3644 | if (s < PL_bufend) { |
a02a5408 | 3645 | Newxz(newargv,PL_origargc+3,char*); |
9f68db38 | 3646 | newargv[1] = s; |
3280af22 | 3647 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
3648 | s++; |
3649 | *s = '\0'; | |
3280af22 | 3650 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
3651 | } |
3652 | else | |
3280af22 | 3653 | newargv = PL_origargv; |
774d564b | 3654 | newargv[0] = ipath; |
b35112e7 | 3655 | PERL_FPU_PRE_EXEC |
b4748376 | 3656 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
b35112e7 | 3657 | PERL_FPU_POST_EXEC |
cea2e8a9 | 3658 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 3659 | } |
bf4acbe4 | 3660 | #endif |
748a9306 | 3661 | if (d) { |
c35e046a AL |
3662 | while (*d && !isSPACE(*d)) |
3663 | d++; | |
3664 | while (SPACE_OR_TAB(*d)) | |
3665 | d++; | |
748a9306 LW |
3666 | |
3667 | if (*d++ == '-') { | |
f54cb97a | 3668 | const bool switches_done = PL_doswitches; |
fb993905 GA |
3669 | const U32 oldpdb = PL_perldb; |
3670 | const bool oldn = PL_minus_n; | |
3671 | const bool oldp = PL_minus_p; | |
3672 | ||
8cc95fdb | 3673 | do { |
3ffe3ee4 | 3674 | if (*d == 'M' || *d == 'm' || *d == 'C') { |
9d4ba2ae | 3675 | const char * const m = d; |
d4c19fe8 AL |
3676 | while (*d && !isSPACE(*d)) |
3677 | d++; | |
cea2e8a9 | 3678 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
8cc95fdb | 3679 | (int)(d - m), m); |
3680 | } | |
97bd5664 | 3681 | d = moreswitches(d); |
8cc95fdb | 3682 | } while (d); |
f0b2cf55 YST |
3683 | if (PL_doswitches && !switches_done) { |
3684 | int argc = PL_origargc; | |
3685 | char **argv = PL_origargv; | |
3686 | do { | |
3687 | argc--,argv++; | |
3688 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
3689 | init_argv_symbols(argc,argv); | |
3690 | } | |
155aba94 GS |
3691 | if ((PERLDB_LINE && !oldpdb) || |
3692 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) | |
b084f20b | 3693 | /* if we have already added "LINE: while (<>) {", |
3694 | we must not do it again */ | |
748a9306 | 3695 | { |
c69006e4 | 3696 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3697 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3698 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3699 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3700 | PL_preambled = FALSE; |
84902520 | 3701 | if (PERLDB_LINE) |
3280af22 | 3702 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
3703 | goto retry; |
3704 | } | |
a0d0e21e | 3705 | } |
79072805 | 3706 | } |
9f68db38 | 3707 | } |
79072805 | 3708 | } |
3280af22 NIS |
3709 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3710 | PL_bufptr = s; | |
3711 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3712 | return yylex(); |
ae986130 | 3713 | } |
378cc40b | 3714 | goto retry; |
4fdae800 | 3715 | case '\r': |
6a27c188 | 3716 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 3717 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 3718 | Perl_croak(aTHX_ |
cc507455 | 3719 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 3720 | #endif |
4fdae800 | 3721 | case ' ': case '\t': case '\f': case 013: |
bf4acbe4 GS |
3722 | #ifdef MACOS_TRADITIONAL |
3723 | case '\312': | |
3724 | #endif | |
5db06880 | 3725 | #ifdef PERL_MAD |
cd81e915 | 3726 | PL_realtokenstart = -1; |
5db06880 NC |
3727 | s = SKIPSPACE0(s); |
3728 | #else | |
378cc40b | 3729 | s++; |
5db06880 | 3730 | #endif |
378cc40b | 3731 | goto retry; |
378cc40b | 3732 | case '#': |
e929a76b | 3733 | case '\n': |
5db06880 | 3734 | #ifdef PERL_MAD |
cd81e915 | 3735 | PL_realtokenstart = -1; |
5db06880 | 3736 | if (PL_madskills) |
cd81e915 | 3737 | PL_faketokens = 0; |
5db06880 | 3738 | #endif |
3280af22 | 3739 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
3740 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
3741 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
3742 | CopLINE_dec(PL_curcop); | |
3743 | incline(s); | |
3744 | } | |
5db06880 NC |
3745 | if (PL_madskills && !PL_lex_formbrack && !PL_in_eval) { |
3746 | s = SKIPSPACE0(s); | |
3747 | if (!PL_in_eval || PL_rsfp) | |
3748 | incline(s); | |
3749 | } | |
3750 | else { | |
3751 | d = s; | |
3752 | while (d < PL_bufend && *d != '\n') | |
3753 | d++; | |
3754 | if (d < PL_bufend) | |
3755 | d++; | |
3756 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
3757 | Perl_croak(aTHX_ "panic: input overflow"); | |
3758 | #ifdef PERL_MAD | |
3759 | if (PL_madskills) | |
cd81e915 | 3760 | PL_thiswhite = newSVpvn(s, d - s); |
5db06880 NC |
3761 | #endif |
3762 | s = d; | |
3763 | incline(s); | |
3764 | } | |
3280af22 NIS |
3765 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3766 | PL_bufptr = s; | |
3767 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3768 | return yylex(); |
a687059c | 3769 | } |
378cc40b | 3770 | } |
a687059c | 3771 | else { |
5db06880 NC |
3772 | #ifdef PERL_MAD |
3773 | if (PL_madskills && CopLINE(PL_curcop) >= 1 && !PL_lex_formbrack) { | |
3774 | if (CopLINE(PL_curcop) == 1 && s[0] == '#' && s[1] == '!') { | |
cd81e915 | 3775 | PL_faketokens = 0; |
5db06880 NC |
3776 | s = SKIPSPACE0(s); |
3777 | TOKEN(PEG); /* make sure any #! line is accessible */ | |
3778 | } | |
3779 | s = SKIPSPACE0(s); | |
3780 | } | |
3781 | else { | |
3782 | /* if (PL_madskills && PL_lex_formbrack) { */ | |
3783 | d = s; | |
3784 | while (d < PL_bufend && *d != '\n') | |
3785 | d++; | |
3786 | if (d < PL_bufend) | |
3787 | d++; | |
3788 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
3789 | Perl_croak(aTHX_ "panic: input overflow"); | |
3790 | if (PL_madskills && CopLINE(PL_curcop) >= 1) { | |
cd81e915 NC |
3791 | if (!PL_thiswhite) |
3792 | PL_thiswhite = newSVpvn("",0); | |
5db06880 | 3793 | if (CopLINE(PL_curcop) == 1) { |
cd81e915 NC |
3794 | sv_setpvn(PL_thiswhite, "", 0); |
3795 | PL_faketokens = 0; | |
5db06880 | 3796 | } |
cd81e915 | 3797 | sv_catpvn(PL_thiswhite, s, d - s); |
5db06880 NC |
3798 | } |
3799 | s = d; | |
3800 | /* } | |
3801 | *s = '\0'; | |
3802 | PL_bufend = s; */ | |
3803 | } | |
3804 | #else | |
378cc40b | 3805 | *s = '\0'; |
3280af22 | 3806 | PL_bufend = s; |
5db06880 | 3807 | #endif |
a687059c | 3808 | } |
378cc40b LW |
3809 | goto retry; |
3810 | case '-': | |
79072805 | 3811 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 | 3812 | I32 ftst = 0; |
90771dc0 | 3813 | char tmp; |
e5edeb50 | 3814 | |
378cc40b | 3815 | s++; |
3280af22 | 3816 | PL_bufptr = s; |
748a9306 LW |
3817 | tmp = *s++; |
3818 | ||
bf4acbe4 | 3819 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
3820 | s++; |
3821 | ||
3822 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 3823 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
931e0695 | 3824 | DEBUG_T( { printbuf("### Saw unary minus before =>, forcing word %s\n", s); } ); |
748a9306 LW |
3825 | OPERATOR('-'); /* unary minus */ |
3826 | } | |
3280af22 | 3827 | PL_last_uni = PL_oldbufptr; |
748a9306 | 3828 | switch (tmp) { |
e5edeb50 JH |
3829 | case 'r': ftst = OP_FTEREAD; break; |
3830 | case 'w': ftst = OP_FTEWRITE; break; | |
3831 | case 'x': ftst = OP_FTEEXEC; break; | |
3832 | case 'o': ftst = OP_FTEOWNED; break; | |
3833 | case 'R': ftst = OP_FTRREAD; break; | |
3834 | case 'W': ftst = OP_FTRWRITE; break; | |
3835 | case 'X': ftst = OP_FTREXEC; break; | |
3836 | case 'O': ftst = OP_FTROWNED; break; | |
3837 | case 'e': ftst = OP_FTIS; break; | |
3838 | case 'z': ftst = OP_FTZERO; break; | |
3839 | case 's': ftst = OP_FTSIZE; break; | |
3840 | case 'f': ftst = OP_FTFILE; break; | |
3841 | case 'd': ftst = OP_FTDIR; break; | |
3842 | case 'l': ftst = OP_FTLINK; break; | |
3843 | case 'p': ftst = OP_FTPIPE; break; | |
3844 | case 'S': ftst = OP_FTSOCK; break; | |
3845 | case 'u': ftst = OP_FTSUID; break; | |
3846 | case 'g': ftst = OP_FTSGID; break; | |
3847 | case 'k': ftst = OP_FTSVTX; break; | |
3848 | case 'b': ftst = OP_FTBLK; break; | |
3849 | case 'c': ftst = OP_FTCHR; break; | |
3850 | case 't': ftst = OP_FTTTY; break; | |
3851 | case 'T': ftst = OP_FTTEXT; break; | |
3852 | case 'B': ftst = OP_FTBINARY; break; | |
3853 | case 'M': case 'A': case 'C': | |
fafc274c | 3854 | gv_fetchpvs("\024", GV_ADD|GV_NOTQUAL, SVt_PV); |
e5edeb50 JH |
3855 | switch (tmp) { |
3856 | case 'M': ftst = OP_FTMTIME; break; | |
3857 | case 'A': ftst = OP_FTATIME; break; | |
3858 | case 'C': ftst = OP_FTCTIME; break; | |
3859 | default: break; | |
3860 | } | |
3861 | break; | |
378cc40b | 3862 | default: |
378cc40b LW |
3863 | break; |
3864 | } | |
e5edeb50 | 3865 | if (ftst) { |
eb160463 | 3866 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 3867 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a18d764d | 3868 | "### Saw file test %c\n", (int)tmp); |
5f80b19c | 3869 | } ); |
e5edeb50 JH |
3870 | FTST(ftst); |
3871 | } | |
3872 | else { | |
3873 | /* Assume it was a minus followed by a one-letter named | |
3874 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 3875 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
17ad61e0 | 3876 | "### '-%c' looked like a file test but was not\n", |
4fccd7c6 | 3877 | (int) tmp); |
5f80b19c | 3878 | } ); |
3cf7b4c4 | 3879 | s = --PL_bufptr; |
e5edeb50 | 3880 | } |
378cc40b | 3881 | } |
90771dc0 NC |
3882 | { |
3883 | const char tmp = *s++; | |
3884 | if (*s == tmp) { | |
3885 | s++; | |
3886 | if (PL_expect == XOPERATOR) | |
3887 | TERM(POSTDEC); | |
3888 | else | |
3889 | OPERATOR(PREDEC); | |
3890 | } | |
3891 | else if (*s == '>') { | |
3892 | s++; | |
29595ff2 | 3893 | s = SKIPSPACE1(s); |
90771dc0 NC |
3894 | if (isIDFIRST_lazy_if(s,UTF)) { |
3895 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); | |
3896 | TOKEN(ARROW); | |
3897 | } | |
3898 | else if (*s == '$') | |
3899 | OPERATOR(ARROW); | |
3900 | else | |
3901 | TERM(ARROW); | |
3902 | } | |
3280af22 | 3903 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
3904 | Aop(OP_SUBTRACT); |
3905 | else { | |
3906 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
3907 | check_uni(); | |
3908 | OPERATOR('-'); /* unary minus */ | |
79072805 | 3909 | } |
2f3197b3 | 3910 | } |
79072805 | 3911 | |
378cc40b | 3912 | case '+': |
90771dc0 NC |
3913 | { |
3914 | const char tmp = *s++; | |
3915 | if (*s == tmp) { | |
3916 | s++; | |
3917 | if (PL_expect == XOPERATOR) | |
3918 | TERM(POSTINC); | |
3919 | else | |
3920 | OPERATOR(PREINC); | |
3921 | } | |
3280af22 | 3922 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
3923 | Aop(OP_ADD); |
3924 | else { | |
3925 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
3926 | check_uni(); | |
3927 | OPERATOR('+'); | |
3928 | } | |
2f3197b3 | 3929 | } |
a687059c | 3930 | |
378cc40b | 3931 | case '*': |
3280af22 NIS |
3932 | if (PL_expect != XOPERATOR) { |
3933 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
3934 | PL_expect = XOPERATOR; | |
3935 | force_ident(PL_tokenbuf, '*'); | |
3936 | if (!*PL_tokenbuf) | |
a0d0e21e | 3937 | PREREF('*'); |
79072805 | 3938 | TERM('*'); |
a687059c | 3939 | } |
79072805 LW |
3940 | s++; |
3941 | if (*s == '*') { | |
a687059c | 3942 | s++; |
79072805 | 3943 | PWop(OP_POW); |
a687059c | 3944 | } |
79072805 LW |
3945 | Mop(OP_MULTIPLY); |
3946 | ||
378cc40b | 3947 | case '%': |
3280af22 | 3948 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 3949 | ++s; |
3950 | Mop(OP_MODULO); | |
a687059c | 3951 | } |
3280af22 NIS |
3952 | PL_tokenbuf[0] = '%'; |
3953 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, TRUE); | |
3954 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 3955 | PREREF('%'); |
a687059c | 3956 | } |
3280af22 | 3957 | PL_pending_ident = '%'; |
bbce6d69 | 3958 | TERM('%'); |
a687059c | 3959 | |
378cc40b | 3960 | case '^': |
79072805 | 3961 | s++; |
a0d0e21e | 3962 | BOop(OP_BIT_XOR); |
79072805 | 3963 | case '[': |
3280af22 | 3964 | PL_lex_brackets++; |
79072805 | 3965 | /* FALL THROUGH */ |
378cc40b | 3966 | case '~': |
0d863452 RH |
3967 | if (s[1] == '~' |
3968 | && (PL_expect == XOPERATOR || PL_expect == XTERMORDORDOR) | |
ef89dcc3 | 3969 | && FEATURE_IS_ENABLED("~~")) |
0d863452 RH |
3970 | { |
3971 | s += 2; | |
3972 | Eop(OP_SMARTMATCH); | |
3973 | } | |
378cc40b | 3974 | case ',': |
90771dc0 NC |
3975 | { |
3976 | const char tmp = *s++; | |
3977 | OPERATOR(tmp); | |
3978 | } | |
a0d0e21e LW |
3979 | case ':': |
3980 | if (s[1] == ':') { | |
3981 | len = 0; | |
0bfa2a8a | 3982 | goto just_a_word_zero_gv; |
a0d0e21e LW |
3983 | } |
3984 | s++; | |
09bef843 SB |
3985 | switch (PL_expect) { |
3986 | OP *attrs; | |
5db06880 NC |
3987 | #ifdef PERL_MAD |
3988 | I32 stuffstart; | |
3989 | #endif | |
09bef843 SB |
3990 | case XOPERATOR: |
3991 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
3992 | break; | |
3993 | PL_bufptr = s; /* update in case we back off */ | |
3994 | goto grabattrs; | |
3995 | case XATTRBLOCK: | |
3996 | PL_expect = XBLOCK; | |
3997 | goto grabattrs; | |
3998 | case XATTRTERM: | |
3999 | PL_expect = XTERMBLOCK; | |
4000 | grabattrs: | |
5db06880 NC |
4001 | #ifdef PERL_MAD |
4002 | stuffstart = s - SvPVX(PL_linestr) - 1; | |
4003 | #endif | |
29595ff2 | 4004 | s = PEEKSPACE(s); |
5f66b61c | 4005 | attrs = NULL; |
7e2040f0 | 4006 | while (isIDFIRST_lazy_if(s,UTF)) { |
90771dc0 | 4007 | I32 tmp; |
5cc237b8 | 4008 | SV *sv; |
09bef843 | 4009 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
f9829d6b GS |
4010 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len))) { |
4011 | if (tmp < 0) tmp = -tmp; | |
4012 | switch (tmp) { | |
4013 | case KEY_or: | |
4014 | case KEY_and: | |
c963b151 | 4015 | case KEY_err: |
f9829d6b GS |
4016 | case KEY_for: |
4017 | case KEY_unless: | |
4018 | case KEY_if: | |
4019 | case KEY_while: | |
4020 | case KEY_until: | |
4021 | goto got_attrs; | |
4022 | default: | |
4023 | break; | |
4024 | } | |
4025 | } | |
5cc237b8 | 4026 | sv = newSVpvn(s, len); |
09bef843 SB |
4027 | if (*d == '(') { |
4028 | d = scan_str(d,TRUE,TRUE); | |
4029 | if (!d) { | |
09bef843 SB |
4030 | /* MUST advance bufptr here to avoid bogus |
4031 | "at end of line" context messages from yyerror(). | |
4032 | */ | |
4033 | PL_bufptr = s + len; | |
4034 | yyerror("Unterminated attribute parameter in attribute list"); | |
4035 | if (attrs) | |
4036 | op_free(attrs); | |
5cc237b8 | 4037 | sv_free(sv); |
bbf60fe6 | 4038 | return REPORT(0); /* EOF indicator */ |
09bef843 SB |
4039 | } |
4040 | } | |
4041 | if (PL_lex_stuff) { | |
09bef843 SB |
4042 | sv_catsv(sv, PL_lex_stuff); |
4043 | attrs = append_elem(OP_LIST, attrs, | |
4044 | newSVOP(OP_CONST, 0, sv)); | |
4045 | SvREFCNT_dec(PL_lex_stuff); | |
a0714e2c | 4046 | PL_lex_stuff = NULL; |
09bef843 SB |
4047 | } |
4048 | else { | |
5cc237b8 BS |
4049 | if (len == 6 && strnEQ(SvPVX(sv), "unique", len)) { |
4050 | sv_free(sv); | |
1108974d | 4051 | if (PL_in_my == KEY_our) { |
371fce9b DM |
4052 | #ifdef USE_ITHREADS |
4053 | GvUNIQUE_on(cGVOPx_gv(yylval.opval)); | |
4054 | #else | |
1108974d | 4055 | /* skip to avoid loading attributes.pm */ |
371fce9b | 4056 | #endif |
df9a6019 | 4057 | deprecate(":unique"); |
1108974d | 4058 | } |
bfed75c6 | 4059 | else |
371fce9b DM |
4060 | Perl_croak(aTHX_ "The 'unique' attribute may only be applied to 'our' variables"); |
4061 | } | |
4062 | ||
d3cea301 SB |
4063 | /* NOTE: any CV attrs applied here need to be part of |
4064 | the CVf_BUILTIN_ATTRS define in cv.h! */ | |
5cc237b8 BS |
4065 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "lvalue", len)) { |
4066 | sv_free(sv); | |
78f9721b | 4067 | CvLVALUE_on(PL_compcv); |
5cc237b8 BS |
4068 | } |
4069 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "locked", len)) { | |
4070 | sv_free(sv); | |
78f9721b | 4071 | CvLOCKED_on(PL_compcv); |
5cc237b8 BS |
4072 | } |
4073 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "method", len)) { | |
4074 | sv_free(sv); | |
78f9721b | 4075 | CvMETHOD_on(PL_compcv); |
5cc237b8 BS |
4076 | } |
4077 | else if (!PL_in_my && len == 9 && strnEQ(SvPVX(sv), "assertion", len)) { | |
4078 | sv_free(sv); | |
06492da6 | 4079 | CvASSERTION_on(PL_compcv); |
5cc237b8 | 4080 | } |
78f9721b SM |
4081 | /* After we've set the flags, it could be argued that |
4082 | we don't need to do the attributes.pm-based setting | |
4083 | process, and shouldn't bother appending recognized | |
d3cea301 SB |
4084 | flags. To experiment with that, uncomment the |
4085 | following "else". (Note that's already been | |
4086 | uncommented. That keeps the above-applied built-in | |
4087 | attributes from being intercepted (and possibly | |
4088 | rejected) by a package's attribute routines, but is | |
4089 | justified by the performance win for the common case | |
4090 | of applying only built-in attributes.) */ | |
0256094b | 4091 | else |
78f9721b SM |
4092 | attrs = append_elem(OP_LIST, attrs, |
4093 | newSVOP(OP_CONST, 0, | |
5cc237b8 | 4094 | sv)); |
09bef843 | 4095 | } |
29595ff2 | 4096 | s = PEEKSPACE(d); |
0120eecf | 4097 | if (*s == ':' && s[1] != ':') |
29595ff2 | 4098 | s = PEEKSPACE(s+1); |
0120eecf GS |
4099 | else if (s == d) |
4100 | break; /* require real whitespace or :'s */ | |
29595ff2 | 4101 | /* XXX losing whitespace on sequential attributes here */ |
09bef843 | 4102 | } |
90771dc0 NC |
4103 | { |
4104 | const char tmp | |
4105 | = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ | |
4106 | if (*s != ';' && *s != '}' && *s != tmp | |
4107 | && (tmp != '=' || *s != ')')) { | |
4108 | const char q = ((*s == '\'') ? '"' : '\''); | |
4109 | /* If here for an expression, and parsed no attrs, back | |
4110 | off. */ | |
4111 | if (tmp == '=' && !attrs) { | |
4112 | s = PL_bufptr; | |
4113 | break; | |
4114 | } | |
4115 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
4116 | context messages from yyerror(). | |
4117 | */ | |
4118 | PL_bufptr = s; | |
4119 | yyerror( *s | |
4120 | ? Perl_form(aTHX_ "Invalid separator character " | |
4121 | "%c%c%c in attribute list", q, *s, q) | |
4122 | : "Unterminated attribute list" ); | |
4123 | if (attrs) | |
4124 | op_free(attrs); | |
4125 | OPERATOR(':'); | |
09bef843 | 4126 | } |
09bef843 | 4127 | } |
f9829d6b | 4128 | got_attrs: |
09bef843 | 4129 | if (attrs) { |
cd81e915 | 4130 | start_force(PL_curforce); |
9ded7720 | 4131 | NEXTVAL_NEXTTOKE.opval = attrs; |
cd81e915 | 4132 | CURMAD('_', PL_nextwhite); |
89122651 | 4133 | force_next(THING); |
5db06880 NC |
4134 | } |
4135 | #ifdef PERL_MAD | |
4136 | if (PL_madskills) { | |
cd81e915 | 4137 | PL_thistoken = newSVpvn(SvPVX(PL_linestr) + stuffstart, |
5db06880 | 4138 | (s - SvPVX(PL_linestr)) - stuffstart); |
09bef843 | 4139 | } |
5db06880 | 4140 | #endif |
09bef843 SB |
4141 | TOKEN(COLONATTR); |
4142 | } | |
a0d0e21e | 4143 | OPERATOR(':'); |
8990e307 LW |
4144 | case '(': |
4145 | s++; | |
3280af22 NIS |
4146 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
4147 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 4148 | else |
3280af22 | 4149 | PL_expect = XTERM; |
29595ff2 | 4150 | s = SKIPSPACE1(s); |
a0d0e21e | 4151 | TOKEN('('); |
378cc40b | 4152 | case ';': |
f4dd75d9 | 4153 | CLINE; |
90771dc0 NC |
4154 | { |
4155 | const char tmp = *s++; | |
4156 | OPERATOR(tmp); | |
4157 | } | |
378cc40b | 4158 | case ')': |
90771dc0 NC |
4159 | { |
4160 | const char tmp = *s++; | |
29595ff2 | 4161 | s = SKIPSPACE1(s); |
90771dc0 NC |
4162 | if (*s == '{') |
4163 | PREBLOCK(tmp); | |
4164 | TERM(tmp); | |
4165 | } | |
79072805 LW |
4166 | case ']': |
4167 | s++; | |
3280af22 | 4168 | if (PL_lex_brackets <= 0) |
d98d5fff | 4169 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 4170 | else |
3280af22 NIS |
4171 | --PL_lex_brackets; |
4172 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4173 | if (PL_lex_brackets == 0) { | |
a0d0e21e | 4174 | if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>')) |
3280af22 | 4175 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4176 | } |
4177 | } | |
4633a7c4 | 4178 | TERM(']'); |
79072805 LW |
4179 | case '{': |
4180 | leftbracket: | |
79072805 | 4181 | s++; |
3280af22 | 4182 | if (PL_lex_brackets > 100) { |
8edd5f42 | 4183 | Renew(PL_lex_brackstack, PL_lex_brackets + 10, char); |
8990e307 | 4184 | } |
3280af22 | 4185 | switch (PL_expect) { |
a0d0e21e | 4186 | case XTERM: |
3280af22 | 4187 | if (PL_lex_formbrack) { |
a0d0e21e LW |
4188 | s--; |
4189 | PRETERMBLOCK(DO); | |
4190 | } | |
3280af22 NIS |
4191 | if (PL_oldoldbufptr == PL_last_lop) |
4192 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4193 | else |
3280af22 | 4194 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 4195 | OPERATOR(HASHBRACK); |
a0d0e21e | 4196 | case XOPERATOR: |
bf4acbe4 | 4197 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 4198 | s++; |
44a8e56a | 4199 | d = s; |
3280af22 NIS |
4200 | PL_tokenbuf[0] = '\0'; |
4201 | if (d < PL_bufend && *d == '-') { | |
4202 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 4203 | d++; |
bf4acbe4 | 4204 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 4205 | d++; |
4206 | } | |
7e2040f0 | 4207 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 4208 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 4209 | FALSE, &len); |
bf4acbe4 | 4210 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
4211 | d++; |
4212 | if (*d == '}') { | |
f54cb97a | 4213 | const char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 4214 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
4215 | if (minus) | |
4216 | force_next('-'); | |
748a9306 LW |
4217 | } |
4218 | } | |
4219 | /* FALL THROUGH */ | |
09bef843 | 4220 | case XATTRBLOCK: |
748a9306 | 4221 | case XBLOCK: |
3280af22 NIS |
4222 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
4223 | PL_expect = XSTATE; | |
a0d0e21e | 4224 | break; |
09bef843 | 4225 | case XATTRTERM: |
a0d0e21e | 4226 | case XTERMBLOCK: |
3280af22 NIS |
4227 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
4228 | PL_expect = XSTATE; | |
a0d0e21e LW |
4229 | break; |
4230 | default: { | |
f54cb97a | 4231 | const char *t; |
3280af22 NIS |
4232 | if (PL_oldoldbufptr == PL_last_lop) |
4233 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4234 | else |
3280af22 | 4235 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
29595ff2 | 4236 | s = SKIPSPACE1(s); |
8452ff4b SB |
4237 | if (*s == '}') { |
4238 | if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) { | |
4239 | PL_expect = XTERM; | |
4240 | /* This hack is to get the ${} in the message. */ | |
4241 | PL_bufptr = s+1; | |
4242 | yyerror("syntax error"); | |
4243 | break; | |
4244 | } | |
a0d0e21e | 4245 | OPERATOR(HASHBRACK); |
8452ff4b | 4246 | } |
b8a4b1be GS |
4247 | /* This hack serves to disambiguate a pair of curlies |
4248 | * as being a block or an anon hash. Normally, expectation | |
4249 | * determines that, but in cases where we're not in a | |
4250 | * position to expect anything in particular (like inside | |
4251 | * eval"") we have to resolve the ambiguity. This code | |
4252 | * covers the case where the first term in the curlies is a | |
4253 | * quoted string. Most other cases need to be explicitly | |
a0288114 | 4254 | * disambiguated by prepending a "+" before the opening |
b8a4b1be GS |
4255 | * curly in order to force resolution as an anon hash. |
4256 | * | |
4257 | * XXX should probably propagate the outer expectation | |
4258 | * into eval"" to rely less on this hack, but that could | |
4259 | * potentially break current behavior of eval"". | |
4260 | * GSAR 97-07-21 | |
4261 | */ | |
4262 | t = s; | |
4263 | if (*s == '\'' || *s == '"' || *s == '`') { | |
4264 | /* common case: get past first string, handling escapes */ | |
3280af22 | 4265 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
4266 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
4267 | t++; | |
4268 | t++; | |
a0d0e21e | 4269 | } |
b8a4b1be | 4270 | else if (*s == 'q') { |
3280af22 | 4271 | if (++t < PL_bufend |
b8a4b1be | 4272 | && (!isALNUM(*t) |
3280af22 | 4273 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
4274 | && !isALNUM(*t)))) |
4275 | { | |
abc667d1 | 4276 | /* skip q//-like construct */ |
f54cb97a | 4277 | const char *tmps; |
b8a4b1be GS |
4278 | char open, close, term; |
4279 | I32 brackets = 1; | |
4280 | ||
3280af22 | 4281 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be | 4282 | t++; |
abc667d1 DM |
4283 | /* check for q => */ |
4284 | if (t+1 < PL_bufend && t[0] == '=' && t[1] == '>') { | |
4285 | OPERATOR(HASHBRACK); | |
4286 | } | |
b8a4b1be GS |
4287 | term = *t; |
4288 | open = term; | |
4289 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
4290 | term = tmps[5]; | |
4291 | close = term; | |
4292 | if (open == close) | |
3280af22 NIS |
4293 | for (t++; t < PL_bufend; t++) { |
4294 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 4295 | t++; |
6d07e5e9 | 4296 | else if (*t == open) |
b8a4b1be GS |
4297 | break; |
4298 | } | |
abc667d1 | 4299 | else { |
3280af22 NIS |
4300 | for (t++; t < PL_bufend; t++) { |
4301 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 4302 | t++; |
6d07e5e9 | 4303 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
4304 | break; |
4305 | else if (*t == open) | |
4306 | brackets++; | |
4307 | } | |
abc667d1 DM |
4308 | } |
4309 | t++; | |
b8a4b1be | 4310 | } |
abc667d1 DM |
4311 | else |
4312 | /* skip plain q word */ | |
4313 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) | |
4314 | t += UTF8SKIP(t); | |
a0d0e21e | 4315 | } |
7e2040f0 | 4316 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 4317 | t += UTF8SKIP(t); |
7e2040f0 | 4318 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 4319 | t += UTF8SKIP(t); |
a0d0e21e | 4320 | } |
3280af22 | 4321 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 4322 | t++; |
b8a4b1be GS |
4323 | /* if comma follows first term, call it an anon hash */ |
4324 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 4325 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 4326 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 4327 | OPERATOR(HASHBRACK); |
3280af22 | 4328 | if (PL_expect == XREF) |
4e4e412b | 4329 | PL_expect = XTERM; |
a0d0e21e | 4330 | else { |
3280af22 NIS |
4331 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
4332 | PL_expect = XSTATE; | |
a0d0e21e | 4333 | } |
8990e307 | 4334 | } |
a0d0e21e | 4335 | break; |
463ee0b2 | 4336 | } |
57843af0 | 4337 | yylval.ival = CopLINE(PL_curcop); |
79072805 | 4338 | if (isSPACE(*s) || *s == '#') |
3280af22 | 4339 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 4340 | TOKEN('{'); |
378cc40b | 4341 | case '}': |
79072805 LW |
4342 | rightbracket: |
4343 | s++; | |
3280af22 | 4344 | if (PL_lex_brackets <= 0) |
d98d5fff | 4345 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 4346 | else |
3280af22 | 4347 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 4348 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
4349 | PL_lex_formbrack = 0; |
4350 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4351 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
4352 | if (PL_expect & XFAKEBRACK) { |
4353 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
4354 | PL_lex_state = LEX_INTERPEND; |
4355 | PL_bufptr = s; | |
5db06880 NC |
4356 | #if 0 |
4357 | if (PL_madskills) { | |
cd81e915 NC |
4358 | if (!PL_thiswhite) |
4359 | PL_thiswhite = newSVpvn("",0); | |
4360 | sv_catpvn(PL_thiswhite,"}",1); | |
5db06880 NC |
4361 | } |
4362 | #endif | |
cea2e8a9 | 4363 | return yylex(); /* ignore fake brackets */ |
79072805 | 4364 | } |
fa83b5b6 | 4365 | if (*s == '-' && s[1] == '>') |
3280af22 | 4366 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 4367 | else if (*s != '[' && *s != '{') |
3280af22 | 4368 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4369 | } |
4370 | } | |
9059aa12 LW |
4371 | if (PL_expect & XFAKEBRACK) { |
4372 | PL_expect &= XENUMMASK; | |
3280af22 | 4373 | PL_bufptr = s; |
cea2e8a9 | 4374 | return yylex(); /* ignore fake brackets */ |
748a9306 | 4375 | } |
cd81e915 | 4376 | start_force(PL_curforce); |
5db06880 NC |
4377 | if (PL_madskills) { |
4378 | curmad('X', newSVpvn(s-1,1)); | |
cd81e915 | 4379 | CURMAD('_', PL_thiswhite); |
5db06880 | 4380 | } |
79072805 | 4381 | force_next('}'); |
5db06880 | 4382 | #ifdef PERL_MAD |
cd81e915 NC |
4383 | if (!PL_thistoken) |
4384 | PL_thistoken = newSVpvn("",0); | |
5db06880 | 4385 | #endif |
79072805 | 4386 | TOKEN(';'); |
378cc40b LW |
4387 | case '&': |
4388 | s++; | |
90771dc0 | 4389 | if (*s++ == '&') |
a0d0e21e | 4390 | AOPERATOR(ANDAND); |
378cc40b | 4391 | s--; |
3280af22 | 4392 | if (PL_expect == XOPERATOR) { |
041457d9 DM |
4393 | if (PL_bufptr == PL_linestart && ckWARN(WARN_SEMICOLON) |
4394 | && isIDFIRST_lazy_if(s,UTF)) | |
7e2040f0 | 4395 | { |
57843af0 | 4396 | CopLINE_dec(PL_curcop); |
9014280d | 4397 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 4398 | CopLINE_inc(PL_curcop); |
463ee0b2 | 4399 | } |
79072805 | 4400 | BAop(OP_BIT_AND); |
463ee0b2 | 4401 | } |
79072805 | 4402 | |
3280af22 NIS |
4403 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
4404 | if (*PL_tokenbuf) { | |
4405 | PL_expect = XOPERATOR; | |
4406 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 4407 | } |
79072805 LW |
4408 | else |
4409 | PREREF('&'); | |
c07a80fd | 4410 | yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
4411 | TERM('&'); |
4412 | ||
378cc40b LW |
4413 | case '|': |
4414 | s++; | |
90771dc0 | 4415 | if (*s++ == '|') |
a0d0e21e | 4416 | AOPERATOR(OROR); |
378cc40b | 4417 | s--; |
79072805 | 4418 | BOop(OP_BIT_OR); |
378cc40b LW |
4419 | case '=': |
4420 | s++; | |
748a9306 | 4421 | { |
90771dc0 NC |
4422 | const char tmp = *s++; |
4423 | if (tmp == '=') | |
4424 | Eop(OP_EQ); | |
4425 | if (tmp == '>') | |
4426 | OPERATOR(','); | |
4427 | if (tmp == '~') | |
4428 | PMop(OP_MATCH); | |
4429 | if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX) | |
4430 | && strchr("+-*/%.^&|<",tmp)) | |
4431 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4432 | "Reversed %c= operator",(int)tmp); | |
4433 | s--; | |
4434 | if (PL_expect == XSTATE && isALPHA(tmp) && | |
4435 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
4436 | { | |
4437 | if (PL_in_eval && !PL_rsfp) { | |
4438 | d = PL_bufend; | |
4439 | while (s < d) { | |
4440 | if (*s++ == '\n') { | |
4441 | incline(s); | |
4442 | if (strnEQ(s,"=cut",4)) { | |
4443 | s = strchr(s,'\n'); | |
4444 | if (s) | |
4445 | s++; | |
4446 | else | |
4447 | s = d; | |
4448 | incline(s); | |
4449 | goto retry; | |
4450 | } | |
4451 | } | |
a5f75d66 | 4452 | } |
90771dc0 | 4453 | goto retry; |
a5f75d66 | 4454 | } |
5db06880 NC |
4455 | #ifdef PERL_MAD |
4456 | if (PL_madskills) { | |
cd81e915 NC |
4457 | if (!PL_thiswhite) |
4458 | PL_thiswhite = newSVpvn("",0); | |
4459 | sv_catpvn(PL_thiswhite, PL_linestart, | |
5db06880 NC |
4460 | PL_bufend - PL_linestart); |
4461 | } | |
4462 | #endif | |
90771dc0 NC |
4463 | s = PL_bufend; |
4464 | PL_doextract = TRUE; | |
4465 | goto retry; | |
a5f75d66 | 4466 | } |
a0d0e21e | 4467 | } |
3280af22 | 4468 | if (PL_lex_brackets < PL_lex_formbrack) { |
c35e046a | 4469 | const char *t = s; |
51882d45 | 4470 | #ifdef PERL_STRICT_CR |
c35e046a | 4471 | while (SPACE_OR_TAB(*t)) |
51882d45 | 4472 | #else |
c35e046a | 4473 | while (SPACE_OR_TAB(*t) || *t == '\r') |
51882d45 | 4474 | #endif |
c35e046a | 4475 | t++; |
a0d0e21e LW |
4476 | if (*t == '\n' || *t == '#') { |
4477 | s--; | |
3280af22 | 4478 | PL_expect = XBLOCK; |
a0d0e21e LW |
4479 | goto leftbracket; |
4480 | } | |
79072805 | 4481 | } |
a0d0e21e LW |
4482 | yylval.ival = 0; |
4483 | OPERATOR(ASSIGNOP); | |
378cc40b LW |
4484 | case '!': |
4485 | s++; | |
90771dc0 NC |
4486 | { |
4487 | const char tmp = *s++; | |
4488 | if (tmp == '=') { | |
4489 | /* was this !=~ where !~ was meant? | |
4490 | * warn on m:!=~\s+([/?]|[msy]\W|tr\W): */ | |
4491 | ||
4492 | if (*s == '~' && ckWARN(WARN_SYNTAX)) { | |
4493 | const char *t = s+1; | |
4494 | ||
4495 | while (t < PL_bufend && isSPACE(*t)) | |
4496 | ++t; | |
4497 | ||
4498 | if (*t == '/' || *t == '?' || | |
4499 | ((*t == 'm' || *t == 's' || *t == 'y') | |
4500 | && !isALNUM(t[1])) || | |
4501 | (*t == 't' && t[1] == 'r' && !isALNUM(t[2]))) | |
4502 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4503 | "!=~ should be !~"); | |
4504 | } | |
4505 | Eop(OP_NE); | |
4506 | } | |
4507 | if (tmp == '~') | |
4508 | PMop(OP_NOT); | |
4509 | } | |
378cc40b LW |
4510 | s--; |
4511 | OPERATOR('!'); | |
4512 | case '<': | |
3280af22 | 4513 | if (PL_expect != XOPERATOR) { |
93a17b20 | 4514 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 4515 | check_uni(); |
79072805 LW |
4516 | if (s[1] == '<') |
4517 | s = scan_heredoc(s); | |
4518 | else | |
4519 | s = scan_inputsymbol(s); | |
4520 | TERM(sublex_start()); | |
378cc40b LW |
4521 | } |
4522 | s++; | |
90771dc0 NC |
4523 | { |
4524 | char tmp = *s++; | |
4525 | if (tmp == '<') | |
4526 | SHop(OP_LEFT_SHIFT); | |
4527 | if (tmp == '=') { | |
4528 | tmp = *s++; | |
4529 | if (tmp == '>') | |
4530 | Eop(OP_NCMP); | |
4531 | s--; | |
4532 | Rop(OP_LE); | |
4533 | } | |
395c3793 | 4534 | } |
378cc40b | 4535 | s--; |
79072805 | 4536 | Rop(OP_LT); |
378cc40b LW |
4537 | case '>': |
4538 | s++; | |
90771dc0 NC |
4539 | { |
4540 | const char tmp = *s++; | |
4541 | if (tmp == '>') | |
4542 | SHop(OP_RIGHT_SHIFT); | |
d4c19fe8 | 4543 | else if (tmp == '=') |
90771dc0 NC |
4544 | Rop(OP_GE); |
4545 | } | |
378cc40b | 4546 | s--; |
79072805 | 4547 | Rop(OP_GT); |
378cc40b LW |
4548 | |
4549 | case '$': | |
bbce6d69 | 4550 | CLINE; |
4551 | ||
3280af22 NIS |
4552 | if (PL_expect == XOPERATOR) { |
4553 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4554 | PL_expect = XTERM; | |
c445ea15 | 4555 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4556 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4557 | } |
8990e307 | 4558 | } |
a0d0e21e | 4559 | |
7e2040f0 | 4560 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-", s[2]))) { |
3280af22 | 4561 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
4562 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
4563 | sizeof PL_tokenbuf - 1, FALSE); | |
4564 | if (PL_expect == XOPERATOR) | |
4565 | no_op("Array length", s); | |
3280af22 | 4566 | if (!PL_tokenbuf[1]) |
a0d0e21e | 4567 | PREREF(DOLSHARP); |
3280af22 NIS |
4568 | PL_expect = XOPERATOR; |
4569 | PL_pending_ident = '#'; | |
463ee0b2 | 4570 | TOKEN(DOLSHARP); |
79072805 | 4571 | } |
bbce6d69 | 4572 | |
3280af22 | 4573 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
4574 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
4575 | sizeof PL_tokenbuf - 1, FALSE); | |
4576 | if (PL_expect == XOPERATOR) | |
4577 | no_op("Scalar", s); | |
3280af22 NIS |
4578 | if (!PL_tokenbuf[1]) { |
4579 | if (s == PL_bufend) | |
bbce6d69 | 4580 | yyerror("Final $ should be \\$ or $name"); |
4581 | PREREF('$'); | |
8990e307 | 4582 | } |
a0d0e21e | 4583 | |
bbce6d69 | 4584 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 4585 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
bbce6d69 | 4586 | yylval.opval = newSVOP(OP_CONST, 0, |
fc15ae8f | 4587 | newSViv(CopARYBASE_get(&PL_compiling))); |
bbce6d69 | 4588 | yylval.opval->op_private = OPpCONST_ARYBASE; |
4589 | TERM(THING); | |
4590 | } | |
4591 | ||
ff68c719 | 4592 | d = s; |
90771dc0 NC |
4593 | { |
4594 | const char tmp = *s; | |
4595 | if (PL_lex_state == LEX_NORMAL) | |
29595ff2 | 4596 | s = SKIPSPACE1(s); |
ff68c719 | 4597 | |
90771dc0 NC |
4598 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) |
4599 | && intuit_more(s)) { | |
4600 | if (*s == '[') { | |
4601 | PL_tokenbuf[0] = '@'; | |
4602 | if (ckWARN(WARN_SYNTAX)) { | |
c35e046a AL |
4603 | char *t = s+1; |
4604 | ||
4605 | while (isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$') | |
4606 | t++; | |
90771dc0 | 4607 | if (*t++ == ',') { |
29595ff2 | 4608 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
90771dc0 NC |
4609 | while (t < PL_bufend && *t != ']') |
4610 | t++; | |
9014280d | 4611 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
90771dc0 | 4612 | "Multidimensional syntax %.*s not supported", |
36c7798d | 4613 | (int)((t - PL_bufptr) + 1), PL_bufptr); |
90771dc0 | 4614 | } |
748a9306 | 4615 | } |
93a17b20 | 4616 | } |
90771dc0 NC |
4617 | else if (*s == '{') { |
4618 | char *t; | |
4619 | PL_tokenbuf[0] = '%'; | |
4620 | if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX) | |
4621 | && (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
4622 | { | |
4623 | char tmpbuf[sizeof PL_tokenbuf]; | |
c35e046a AL |
4624 | do { |
4625 | t++; | |
4626 | } while (isSPACE(*t)); | |
90771dc0 | 4627 | if (isIDFIRST_lazy_if(t,UTF)) { |
5f66b61c | 4628 | STRLEN dummylen; |
90771dc0 | 4629 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, |
5f66b61c | 4630 | &dummylen); |
c35e046a AL |
4631 | while (isSPACE(*t)) |
4632 | t++; | |
90771dc0 NC |
4633 | if (*t == ';' && get_cv(tmpbuf, FALSE)) |
4634 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4635 | "You need to quote \"%s\"", | |
4636 | tmpbuf); | |
4637 | } | |
4638 | } | |
4639 | } | |
93a17b20 | 4640 | } |
bbce6d69 | 4641 | |
90771dc0 NC |
4642 | PL_expect = XOPERATOR; |
4643 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { | |
4644 | const bool islop = (PL_last_lop == PL_oldoldbufptr); | |
4645 | if (!islop || PL_last_lop_op == OP_GREPSTART) | |
4646 | PL_expect = XOPERATOR; | |
4647 | else if (strchr("$@\"'`q", *s)) | |
4648 | PL_expect = XTERM; /* e.g. print $fh "foo" */ | |
4649 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) | |
4650 | PL_expect = XTERM; /* e.g. print $fh &sub */ | |
4651 | else if (isIDFIRST_lazy_if(s,UTF)) { | |
4652 | char tmpbuf[sizeof PL_tokenbuf]; | |
4653 | int t2; | |
4654 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
4655 | if ((t2 = keyword(tmpbuf, len))) { | |
4656 | /* binary operators exclude handle interpretations */ | |
4657 | switch (t2) { | |
4658 | case -KEY_x: | |
4659 | case -KEY_eq: | |
4660 | case -KEY_ne: | |
4661 | case -KEY_gt: | |
4662 | case -KEY_lt: | |
4663 | case -KEY_ge: | |
4664 | case -KEY_le: | |
4665 | case -KEY_cmp: | |
4666 | break; | |
4667 | default: | |
4668 | PL_expect = XTERM; /* e.g. print $fh length() */ | |
4669 | break; | |
4670 | } | |
4671 | } | |
4672 | else { | |
4673 | PL_expect = XTERM; /* e.g. print $fh subr() */ | |
84902520 TB |
4674 | } |
4675 | } | |
90771dc0 NC |
4676 | else if (isDIGIT(*s)) |
4677 | PL_expect = XTERM; /* e.g. print $fh 3 */ | |
4678 | else if (*s == '.' && isDIGIT(s[1])) | |
4679 | PL_expect = XTERM; /* e.g. print $fh .3 */ | |
4680 | else if ((*s == '?' || *s == '-' || *s == '+') | |
4681 | && !isSPACE(s[1]) && s[1] != '=') | |
4682 | PL_expect = XTERM; /* e.g. print $fh -1 */ | |
4683 | else if (*s == '/' && !isSPACE(s[1]) && s[1] != '=' | |
4684 | && s[1] != '/') | |
4685 | PL_expect = XTERM; /* e.g. print $fh /.../ | |
4686 | XXX except DORDOR operator | |
4687 | */ | |
4688 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) | |
4689 | && s[2] != '=') | |
4690 | PL_expect = XTERM; /* print $fh <<"EOF" */ | |
93a17b20 | 4691 | } |
bbce6d69 | 4692 | } |
3280af22 | 4693 | PL_pending_ident = '$'; |
79072805 | 4694 | TOKEN('$'); |
378cc40b LW |
4695 | |
4696 | case '@': | |
3280af22 | 4697 | if (PL_expect == XOPERATOR) |
bbce6d69 | 4698 | no_op("Array", s); |
3280af22 NIS |
4699 | PL_tokenbuf[0] = '@'; |
4700 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
4701 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 4702 | PREREF('@'); |
4703 | } | |
3280af22 | 4704 | if (PL_lex_state == LEX_NORMAL) |
29595ff2 | 4705 | s = SKIPSPACE1(s); |
3280af22 | 4706 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 4707 | if (*s == '{') |
3280af22 | 4708 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
4709 | |
4710 | /* Warn about @ where they meant $. */ | |
041457d9 DM |
4711 | if (*s == '[' || *s == '{') { |
4712 | if (ckWARN(WARN_SYNTAX)) { | |
f54cb97a | 4713 | const char *t = s + 1; |
7e2040f0 | 4714 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
4715 | t++; |
4716 | if (*t == '}' || *t == ']') { | |
4717 | t++; | |
29595ff2 | 4718 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
9014280d | 4719 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 4720 | "Scalar value %.*s better written as $%.*s", |
36c7798d DM |
4721 | (int)(t-PL_bufptr), PL_bufptr, |
4722 | (int)(t-PL_bufptr-1), PL_bufptr+1); | |
a0d0e21e | 4723 | } |
93a17b20 LW |
4724 | } |
4725 | } | |
463ee0b2 | 4726 | } |
3280af22 | 4727 | PL_pending_ident = '@'; |
79072805 | 4728 | TERM('@'); |
378cc40b | 4729 | |
c963b151 | 4730 | case '/': /* may be division, defined-or, or pattern */ |
6f33ba73 RGS |
4731 | if (PL_expect == XTERMORDORDOR && s[1] == '/') { |
4732 | s += 2; | |
4733 | AOPERATOR(DORDOR); | |
4734 | } | |
c963b151 BD |
4735 | case '?': /* may either be conditional or pattern */ |
4736 | if(PL_expect == XOPERATOR) { | |
90771dc0 | 4737 | char tmp = *s++; |
c963b151 BD |
4738 | if(tmp == '?') { |
4739 | OPERATOR('?'); | |
4740 | } | |
4741 | else { | |
4742 | tmp = *s++; | |
4743 | if(tmp == '/') { | |
4744 | /* A // operator. */ | |
4745 | AOPERATOR(DORDOR); | |
4746 | } | |
4747 | else { | |
4748 | s--; | |
4749 | Mop(OP_DIVIDE); | |
4750 | } | |
4751 | } | |
4752 | } | |
4753 | else { | |
4754 | /* Disable warning on "study /blah/" */ | |
4755 | if (PL_oldoldbufptr == PL_last_uni | |
4756 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
4757 | || memNE(PL_last_uni, "study", 5) | |
4758 | || isALNUM_lazy_if(PL_last_uni+5,UTF) | |
4759 | )) | |
4760 | check_uni(); | |
4761 | s = scan_pat(s,OP_MATCH); | |
4762 | TERM(sublex_start()); | |
4763 | } | |
378cc40b LW |
4764 | |
4765 | case '.': | |
51882d45 GS |
4766 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
4767 | #ifdef PERL_STRICT_CR | |
4768 | && s[1] == '\n' | |
4769 | #else | |
4770 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
4771 | #endif | |
4772 | && (s == PL_linestart || s[-1] == '\n') ) | |
4773 | { | |
3280af22 NIS |
4774 | PL_lex_formbrack = 0; |
4775 | PL_expect = XSTATE; | |
79072805 LW |
4776 | goto rightbracket; |
4777 | } | |
3280af22 | 4778 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
90771dc0 | 4779 | char tmp = *s++; |
a687059c LW |
4780 | if (*s == tmp) { |
4781 | s++; | |
2f3197b3 LW |
4782 | if (*s == tmp) { |
4783 | s++; | |
79072805 | 4784 | yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
4785 | } |
4786 | else | |
79072805 | 4787 | yylval.ival = 0; |
378cc40b | 4788 | OPERATOR(DOTDOT); |
a687059c | 4789 | } |
3280af22 | 4790 | if (PL_expect != XOPERATOR) |
2f3197b3 | 4791 | check_uni(); |
79072805 | 4792 | Aop(OP_CONCAT); |
378cc40b LW |
4793 | } |
4794 | /* FALL THROUGH */ | |
4795 | case '0': case '1': case '2': case '3': case '4': | |
4796 | case '5': case '6': case '7': case '8': case '9': | |
b73d6f50 | 4797 | s = scan_num(s, &yylval); |
931e0695 | 4798 | DEBUG_T( { printbuf("### Saw number in %s\n", s); } ); |
3280af22 | 4799 | if (PL_expect == XOPERATOR) |
8990e307 | 4800 | no_op("Number",s); |
79072805 LW |
4801 | TERM(THING); |
4802 | ||
4803 | case '\'': | |
5db06880 | 4804 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 4805 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
4806 | if (PL_expect == XOPERATOR) { |
4807 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4808 | PL_expect = XTERM; | |
c445ea15 | 4809 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4810 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4811 | } |
463ee0b2 | 4812 | else |
8990e307 | 4813 | no_op("String",s); |
463ee0b2 | 4814 | } |
79072805 | 4815 | if (!s) |
d4c19fe8 | 4816 | missingterm(NULL); |
79072805 LW |
4817 | yylval.ival = OP_CONST; |
4818 | TERM(sublex_start()); | |
4819 | ||
4820 | case '"': | |
5db06880 | 4821 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 4822 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
4823 | if (PL_expect == XOPERATOR) { |
4824 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4825 | PL_expect = XTERM; | |
c445ea15 | 4826 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4827 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4828 | } |
463ee0b2 | 4829 | else |
8990e307 | 4830 | no_op("String",s); |
463ee0b2 | 4831 | } |
79072805 | 4832 | if (!s) |
d4c19fe8 | 4833 | missingterm(NULL); |
4633a7c4 | 4834 | yylval.ival = OP_CONST; |
cfd0369c NC |
4835 | /* FIXME. I think that this can be const if char *d is replaced by |
4836 | more localised variables. */ | |
3280af22 | 4837 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
63cd0674 | 4838 | if (*d == '$' || *d == '@' || *d == '\\' || !UTF8_IS_INVARIANT((U8)*d)) { |
4633a7c4 LW |
4839 | yylval.ival = OP_STRINGIFY; |
4840 | break; | |
4841 | } | |
4842 | } | |
79072805 LW |
4843 | TERM(sublex_start()); |
4844 | ||
4845 | case '`': | |
5db06880 | 4846 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 4847 | DEBUG_T( { printbuf("### Saw backtick string before %s\n", s); } ); |
3280af22 | 4848 | if (PL_expect == XOPERATOR) |
8990e307 | 4849 | no_op("Backticks",s); |
79072805 | 4850 | if (!s) |
d4c19fe8 | 4851 | missingterm(NULL); |
79072805 LW |
4852 | yylval.ival = OP_BACKTICK; |
4853 | set_csh(); | |
4854 | TERM(sublex_start()); | |
4855 | ||
4856 | case '\\': | |
4857 | s++; | |
041457d9 | 4858 | if (PL_lex_inwhat && isDIGIT(*s) && ckWARN(WARN_SYNTAX)) |
9014280d | 4859 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression", |
599cee73 | 4860 | *s, *s); |
3280af22 | 4861 | if (PL_expect == XOPERATOR) |
8990e307 | 4862 | no_op("Backslash",s); |
79072805 LW |
4863 | OPERATOR(REFGEN); |
4864 | ||
a7cb1f99 | 4865 | case 'v': |
e526c9e6 | 4866 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
f54cb97a | 4867 | char *start = s + 2; |
dd629d5b | 4868 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
4869 | start++; |
4870 | if (*start == '.' && isDIGIT(start[1])) { | |
b73d6f50 | 4871 | s = scan_num(s, &yylval); |
a7cb1f99 GS |
4872 | TERM(THING); |
4873 | } | |
e526c9e6 | 4874 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
6f33ba73 RGS |
4875 | else if (!isALPHA(*start) && (PL_expect == XTERM |
4876 | || PL_expect == XREF || PL_expect == XSTATE | |
4877 | || PL_expect == XTERMORDORDOR)) { | |
d4c19fe8 | 4878 | /* XXX Use gv_fetchpvn rather than stomping on a const string */ |
f54cb97a | 4879 | const char c = *start; |
e526c9e6 GS |
4880 | GV *gv; |
4881 | *start = '\0'; | |
f776e3cd | 4882 | gv = gv_fetchpv(s, 0, SVt_PVCV); |
e526c9e6 GS |
4883 | *start = c; |
4884 | if (!gv) { | |
b73d6f50 | 4885 | s = scan_num(s, &yylval); |
e526c9e6 GS |
4886 | TERM(THING); |
4887 | } | |
4888 | } | |
a7cb1f99 GS |
4889 | } |
4890 | goto keylookup; | |
79072805 | 4891 | case 'x': |
3280af22 | 4892 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
4893 | s++; |
4894 | Mop(OP_REPEAT); | |
2f3197b3 | 4895 | } |
79072805 LW |
4896 | goto keylookup; |
4897 | ||
378cc40b | 4898 | case '_': |
79072805 LW |
4899 | case 'a': case 'A': |
4900 | case 'b': case 'B': | |
4901 | case 'c': case 'C': | |
4902 | case 'd': case 'D': | |
4903 | case 'e': case 'E': | |
4904 | case 'f': case 'F': | |
4905 | case 'g': case 'G': | |
4906 | case 'h': case 'H': | |
4907 | case 'i': case 'I': | |
4908 | case 'j': case 'J': | |
4909 | case 'k': case 'K': | |
4910 | case 'l': case 'L': | |
4911 | case 'm': case 'M': | |
4912 | case 'n': case 'N': | |
4913 | case 'o': case 'O': | |
4914 | case 'p': case 'P': | |
4915 | case 'q': case 'Q': | |
4916 | case 'r': case 'R': | |
4917 | case 's': case 'S': | |
4918 | case 't': case 'T': | |
4919 | case 'u': case 'U': | |
a7cb1f99 | 4920 | case 'V': |
79072805 LW |
4921 | case 'w': case 'W': |
4922 | case 'X': | |
4923 | case 'y': case 'Y': | |
4924 | case 'z': case 'Z': | |
4925 | ||
49dc05e3 | 4926 | keylookup: { |
90771dc0 | 4927 | I32 tmp; |
0bfa2a8a | 4928 | I32 orig_keyword = 0; |
cbbf8932 AL |
4929 | GV *gv = NULL; |
4930 | GV **gvp = NULL; | |
49dc05e3 | 4931 | |
3280af22 NIS |
4932 | PL_bufptr = s; |
4933 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 4934 | |
4935 | /* Some keywords can be followed by any delimiter, including ':' */ | |
155aba94 GS |
4936 | tmp = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
4937 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || | |
4938 | (PL_tokenbuf[0] == 'q' && | |
4939 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 4940 | |
4941 | /* x::* is just a word, unless x is "CORE" */ | |
3280af22 | 4942 | if (!tmp && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
4943 | goto just_a_word; |
4944 | ||
3643fb5f | 4945 | d = s; |
3280af22 | 4946 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
4947 | d++; /* no comments skipped here, or s### is misparsed */ |
4948 | ||
4949 | /* Is this a label? */ | |
3280af22 NIS |
4950 | if (!tmp && PL_expect == XSTATE |
4951 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
8ebc5c01 | 4952 | s = d + 1; |
3280af22 | 4953 | yylval.pval = savepv(PL_tokenbuf); |
8ebc5c01 | 4954 | CLINE; |
4955 | TOKEN(LABEL); | |
3643fb5f CS |
4956 | } |
4957 | ||
4958 | /* Check for keywords */ | |
3280af22 | 4959 | tmp = keyword(PL_tokenbuf, len); |
748a9306 LW |
4960 | |
4961 | /* Is this a word before a => operator? */ | |
1c3923b3 | 4962 | if (*d == '=' && d[1] == '>') { |
748a9306 | 4963 | CLINE; |
d0a148a6 NC |
4964 | yylval.opval |
4965 | = (OP*)newSVOP(OP_CONST, 0, | |
4966 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
748a9306 LW |
4967 | yylval.opval->op_private = OPpCONST_BARE; |
4968 | TERM(WORD); | |
4969 | } | |
4970 | ||
a0d0e21e | 4971 | if (tmp < 0) { /* second-class keyword? */ |
cbbf8932 AL |
4972 | GV *ogv = NULL; /* override (winner) */ |
4973 | GV *hgv = NULL; /* hidden (loser) */ | |
3280af22 | 4974 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 4975 | CV *cv; |
90e5519e | 4976 | if ((gv = gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVCV)) && |
56f7f34b CS |
4977 | (cv = GvCVu(gv))) |
4978 | { | |
4979 | if (GvIMPORTED_CV(gv)) | |
4980 | ogv = gv; | |
4981 | else if (! CvMETHOD(cv)) | |
4982 | hgv = gv; | |
4983 | } | |
4984 | if (!ogv && | |
3280af22 NIS |
4985 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
4986 | (gv = *gvp) != (GV*)&PL_sv_undef && | |
56f7f34b CS |
4987 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
4988 | { | |
4989 | ogv = gv; | |
4990 | } | |
4991 | } | |
4992 | if (ogv) { | |
30fe34ed | 4993 | orig_keyword = tmp; |
56f7f34b | 4994 | tmp = 0; /* overridden by import or by GLOBAL */ |
6e7b2336 GS |
4995 | } |
4996 | else if (gv && !gvp | |
4997 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
d0456cad | 4998 | && GvCVu(gv) |
017a3ce5 | 4999 | && !hv_fetchs(GvHVn(PL_incgv), "Thread.pm", FALSE)) |
6e7b2336 GS |
5000 | { |
5001 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 5002 | } |
56f7f34b CS |
5003 | else { /* no override */ |
5004 | tmp = -tmp; | |
ac206dc8 | 5005 | if (tmp == KEY_dump && ckWARN(WARN_MISC)) { |
9014280d | 5006 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
ac206dc8 RGS |
5007 | "dump() better written as CORE::dump()"); |
5008 | } | |
a0714e2c | 5009 | gv = NULL; |
56f7f34b | 5010 | gvp = 0; |
041457d9 DM |
5011 | if (hgv && tmp != KEY_x && tmp != KEY_CORE |
5012 | && ckWARN(WARN_AMBIGUOUS)) /* never ambiguous */ | |
9014280d | 5013 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 5014 | "Ambiguous call resolved as CORE::%s(), %s", |
2f3ca594 | 5015 | GvENAME(hgv), "qualify as such or use &"); |
49dc05e3 | 5016 | } |
a0d0e21e LW |
5017 | } |
5018 | ||
5019 | reserved_word: | |
5020 | switch (tmp) { | |
79072805 LW |
5021 | |
5022 | default: /* not a keyword */ | |
0bfa2a8a NC |
5023 | /* Trade off - by using this evil construction we can pull the |
5024 | variable gv into the block labelled keylookup. If not, then | |
5025 | we have to give it function scope so that the goto from the | |
5026 | earlier ':' case doesn't bypass the initialisation. */ | |
5027 | if (0) { | |
5028 | just_a_word_zero_gv: | |
5029 | gv = NULL; | |
5030 | gvp = NULL; | |
8bee0991 | 5031 | orig_keyword = 0; |
0bfa2a8a | 5032 | } |
93a17b20 | 5033 | just_a_word: { |
96e4d5b1 | 5034 | SV *sv; |
ce29ac45 | 5035 | int pkgname = 0; |
f54cb97a | 5036 | const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
5069cc75 | 5037 | CV *cv; |
5db06880 | 5038 | #ifdef PERL_MAD |
cd81e915 | 5039 | SV *nextPL_nextwhite = 0; |
5db06880 NC |
5040 | #endif |
5041 | ||
8990e307 LW |
5042 | |
5043 | /* Get the rest if it looks like a package qualifier */ | |
5044 | ||
155aba94 | 5045 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 5046 | STRLEN morelen; |
3280af22 | 5047 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
5048 | TRUE, &morelen); |
5049 | if (!morelen) | |
cea2e8a9 | 5050 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 5051 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 5052 | len += morelen; |
ce29ac45 | 5053 | pkgname = 1; |
a0d0e21e | 5054 | } |
8990e307 | 5055 | |
3280af22 NIS |
5056 | if (PL_expect == XOPERATOR) { |
5057 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 5058 | CopLINE_dec(PL_curcop); |
9014280d | 5059 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 5060 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
5061 | } |
5062 | else | |
54310121 | 5063 | no_op("Bareword",s); |
463ee0b2 | 5064 | } |
8990e307 | 5065 | |
c3e0f903 GS |
5066 | /* Look for a subroutine with this name in current package, |
5067 | unless name is "Foo::", in which case Foo is a bearword | |
5068 | (and a package name). */ | |
5069 | ||
5db06880 | 5070 | if (len > 2 && !PL_madskills && |
3280af22 | 5071 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 5072 | { |
f776e3cd | 5073 | if (ckWARN(WARN_BAREWORD) |
90e5519e | 5074 | && ! gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVHV)) |
9014280d | 5075 | Perl_warner(aTHX_ packWARN(WARN_BAREWORD), |
599cee73 | 5076 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 5077 | PL_tokenbuf); |
c3e0f903 | 5078 | len -= 2; |
3280af22 | 5079 | PL_tokenbuf[len] = '\0'; |
a0714e2c | 5080 | gv = NULL; |
c3e0f903 GS |
5081 | gvp = 0; |
5082 | } | |
5083 | else { | |
62d55b22 NC |
5084 | if (!gv) { |
5085 | /* Mustn't actually add anything to a symbol table. | |
5086 | But also don't want to "initialise" any placeholder | |
5087 | constants that might already be there into full | |
5088 | blown PVGVs with attached PVCV. */ | |
90e5519e NC |
5089 | gv = gv_fetchpvn_flags(PL_tokenbuf, len, |
5090 | GV_NOADD_NOINIT, SVt_PVCV); | |
62d55b22 | 5091 | } |
b3d904f3 | 5092 | len = 0; |
c3e0f903 GS |
5093 | } |
5094 | ||
5095 | /* if we saw a global override before, get the right name */ | |
8990e307 | 5096 | |
49dc05e3 | 5097 | if (gvp) { |
396482e1 | 5098 | sv = newSVpvs("CORE::GLOBAL::"); |
3280af22 | 5099 | sv_catpv(sv,PL_tokenbuf); |
49dc05e3 | 5100 | } |
8a7a129d NC |
5101 | else { |
5102 | /* If len is 0, newSVpv does strlen(), which is correct. | |
5103 | If len is non-zero, then it will be the true length, | |
5104 | and so the scalar will be created correctly. */ | |
5105 | sv = newSVpv(PL_tokenbuf,len); | |
5106 | } | |
5db06880 | 5107 | #ifdef PERL_MAD |
cd81e915 NC |
5108 | if (PL_madskills && !PL_thistoken) { |
5109 | char *start = SvPVX(PL_linestr) + PL_realtokenstart; | |
5110 | PL_thistoken = newSVpv(start,s - start); | |
5111 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
5112 | } |
5113 | #endif | |
8990e307 | 5114 | |
a0d0e21e LW |
5115 | /* Presume this is going to be a bareword of some sort. */ |
5116 | ||
5117 | CLINE; | |
49dc05e3 | 5118 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
a0d0e21e | 5119 | yylval.opval->op_private = OPpCONST_BARE; |
8f8cf39c JH |
5120 | /* UTF-8 package name? */ |
5121 | if (UTF && !IN_BYTES && | |
95a20fc0 | 5122 | is_utf8_string((U8*)SvPVX_const(sv), SvCUR(sv))) |
8f8cf39c | 5123 | SvUTF8_on(sv); |
a0d0e21e | 5124 | |
c3e0f903 GS |
5125 | /* And if "Foo::", then that's what it certainly is. */ |
5126 | ||
5127 | if (len) | |
5128 | goto safe_bareword; | |
5129 | ||
5069cc75 NC |
5130 | /* Do the explicit type check so that we don't need to force |
5131 | the initialisation of the symbol table to have a real GV. | |
5132 | Beware - gv may not really be a PVGV, cv may not really be | |
5133 | a PVCV, (because of the space optimisations that gv_init | |
5134 | understands) But they're true if for this symbol there is | |
5135 | respectively a typeglob and a subroutine. | |
5136 | */ | |
5137 | cv = gv ? ((SvTYPE(gv) == SVt_PVGV) | |
5138 | /* Real typeglob, so get the real subroutine: */ | |
5139 | ? GvCVu(gv) | |
5140 | /* A proxy for a subroutine in this package? */ | |
5141 | : SvOK(gv) ? (CV *) gv : NULL) | |
5142 | : NULL; | |
5143 | ||
8990e307 LW |
5144 | /* See if it's the indirect object for a list operator. */ |
5145 | ||
3280af22 NIS |
5146 | if (PL_oldoldbufptr && |
5147 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
5148 | (PL_oldoldbufptr == PL_last_lop |
5149 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 5150 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
5151 | (PL_expect == XREF || |
5152 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 5153 | { |
748a9306 LW |
5154 | bool immediate_paren = *s == '('; |
5155 | ||
a0d0e21e | 5156 | /* (Now we can afford to cross potential line boundary.) */ |
cd81e915 | 5157 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5db06880 | 5158 | #ifdef PERL_MAD |
cd81e915 | 5159 | PL_nextwhite = nextPL_nextwhite; /* assume no & deception */ |
5db06880 | 5160 | #endif |
a0d0e21e LW |
5161 | |
5162 | /* Two barewords in a row may indicate method call. */ | |
5163 | ||
62d55b22 NC |
5164 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && |
5165 | (tmp = intuit_method(s, gv, cv))) | |
bbf60fe6 | 5166 | return REPORT(tmp); |
a0d0e21e LW |
5167 | |
5168 | /* If not a declared subroutine, it's an indirect object. */ | |
5169 | /* (But it's an indir obj regardless for sort.) */ | |
7294df96 | 5170 | /* Also, if "_" follows a filetest operator, it's a bareword */ |
a0d0e21e | 5171 | |
7294df96 RGS |
5172 | if ( |
5173 | ( !immediate_paren && (PL_last_lop_op == OP_SORT || | |
5069cc75 | 5174 | ((!gv || !cv) && |
a9ef352a | 5175 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 5176 | PL_last_lop_op != OP_GREPSTART)))) |
7294df96 RGS |
5177 | || (PL_tokenbuf[0] == '_' && PL_tokenbuf[1] == '\0' |
5178 | && ((PL_opargs[PL_last_lop_op] & OA_CLASS_MASK) == OA_FILESTATOP)) | |
5179 | ) | |
a9ef352a | 5180 | { |
3280af22 | 5181 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 5182 | goto bareword; |
93a17b20 LW |
5183 | } |
5184 | } | |
8990e307 | 5185 | |
3280af22 | 5186 | PL_expect = XOPERATOR; |
5db06880 NC |
5187 | #ifdef PERL_MAD |
5188 | if (isSPACE(*s)) | |
cd81e915 NC |
5189 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5190 | PL_nextwhite = nextPL_nextwhite; | |
5db06880 | 5191 | #else |
8990e307 | 5192 | s = skipspace(s); |
5db06880 | 5193 | #endif |
1c3923b3 GS |
5194 | |
5195 | /* Is this a word before a => operator? */ | |
ce29ac45 | 5196 | if (*s == '=' && s[1] == '>' && !pkgname) { |
1c3923b3 GS |
5197 | CLINE; |
5198 | sv_setpv(((SVOP*)yylval.opval)->op_sv, PL_tokenbuf); | |
0064a8a9 | 5199 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
7948272d | 5200 | SvUTF8_on(((SVOP*)yylval.opval)->op_sv); |
1c3923b3 GS |
5201 | TERM(WORD); |
5202 | } | |
5203 | ||
5204 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 5205 | if (*s == '(') { |
79072805 | 5206 | CLINE; |
5069cc75 | 5207 | if (cv) { |
c35e046a AL |
5208 | d = s + 1; |
5209 | while (SPACE_OR_TAB(*d)) | |
5210 | d++; | |
62d55b22 | 5211 | if (*d == ')' && (sv = gv_const_sv(gv))) { |
96e4d5b1 | 5212 | s = d + 1; |
5db06880 NC |
5213 | #ifdef PERL_MAD |
5214 | if (PL_madskills) { | |
cd81e915 NC |
5215 | char *par = SvPVX(PL_linestr) + PL_realtokenstart; |
5216 | sv_catpvn(PL_thistoken, par, s - par); | |
5217 | if (PL_nextwhite) { | |
5218 | sv_free(PL_nextwhite); | |
5219 | PL_nextwhite = 0; | |
5db06880 NC |
5220 | } |
5221 | } | |
5222 | #endif | |
96e4d5b1 | 5223 | goto its_constant; |
5224 | } | |
5225 | } | |
5db06880 NC |
5226 | #ifdef PERL_MAD |
5227 | if (PL_madskills) { | |
cd81e915 NC |
5228 | PL_nextwhite = PL_thiswhite; |
5229 | PL_thiswhite = 0; | |
5db06880 | 5230 | } |
cd81e915 | 5231 | start_force(PL_curforce); |
5db06880 | 5232 | #endif |
9ded7720 | 5233 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 5234 | PL_expect = XOPERATOR; |
5db06880 NC |
5235 | #ifdef PERL_MAD |
5236 | if (PL_madskills) { | |
cd81e915 NC |
5237 | PL_nextwhite = nextPL_nextwhite; |
5238 | curmad('X', PL_thistoken); | |
5239 | PL_thistoken = newSVpvn("",0); | |
5db06880 NC |
5240 | } |
5241 | #endif | |
93a17b20 | 5242 | force_next(WORD); |
c07a80fd | 5243 | yylval.ival = 0; |
463ee0b2 | 5244 | TOKEN('&'); |
79072805 | 5245 | } |
93a17b20 | 5246 | |
a0d0e21e | 5247 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 5248 | |
62d55b22 | 5249 | if ((*s == '$' || *s == '{') && (!gv || !cv)) { |
3280af22 NIS |
5250 | PL_last_lop = PL_oldbufptr; |
5251 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 5252 | PREBLOCK(METHOD); |
463ee0b2 LW |
5253 | } |
5254 | ||
8990e307 LW |
5255 | /* If followed by a bareword, see if it looks like indir obj. */ |
5256 | ||
30fe34ed RGS |
5257 | if (!orig_keyword |
5258 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
62d55b22 | 5259 | && (tmp = intuit_method(s, gv, cv))) |
bbf60fe6 | 5260 | return REPORT(tmp); |
93a17b20 | 5261 | |
8990e307 LW |
5262 | /* Not a method, so call it a subroutine (if defined) */ |
5263 | ||
5069cc75 | 5264 | if (cv) { |
0453d815 | 5265 | if (lastchar == '-' && ckWARN_d(WARN_AMBIGUOUS)) |
9014280d | 5266 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5267 | "Ambiguous use of -%s resolved as -&%s()", |
3280af22 | 5268 | PL_tokenbuf, PL_tokenbuf); |
89bfa8cd | 5269 | /* Check for a constant sub */ |
62d55b22 | 5270 | if ((sv = gv_const_sv(gv))) { |
96e4d5b1 | 5271 | its_constant: |
5272 | SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv); | |
b37c2d43 | 5273 | ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc_simple(sv); |
96e4d5b1 | 5274 | yylval.opval->op_private = 0; |
5275 | TOKEN(WORD); | |
89bfa8cd | 5276 | } |
5277 | ||
a5f75d66 | 5278 | /* Resolve to GV now. */ |
62d55b22 | 5279 | if (SvTYPE(gv) != SVt_PVGV) { |
b3d904f3 | 5280 | gv = gv_fetchpv(PL_tokenbuf, 0, SVt_PVCV); |
62d55b22 NC |
5281 | assert (SvTYPE(gv) == SVt_PVGV); |
5282 | /* cv must have been some sort of placeholder, so | |
5283 | now needs replacing with a real code reference. */ | |
5284 | cv = GvCV(gv); | |
5285 | } | |
5286 | ||
a5f75d66 AD |
5287 | op_free(yylval.opval); |
5288 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
9675f7ac | 5289 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
7a52d87a | 5290 | PL_last_lop = PL_oldbufptr; |
bf848113 | 5291 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 | 5292 | /* Is there a prototype? */ |
5db06880 NC |
5293 | if ( |
5294 | #ifdef PERL_MAD | |
5295 | cv && | |
5296 | #endif | |
5297 | SvPOK(cv)) { | |
5f66b61c AL |
5298 | STRLEN protolen; |
5299 | const char *proto = SvPV_const((SV*)cv, protolen); | |
5300 | if (!protolen) | |
4633a7c4 | 5301 | TERM(FUNC0SUB); |
770526c1 | 5302 | if (*proto == '$' && proto[1] == '\0') |
4633a7c4 | 5303 | OPERATOR(UNIOPSUB); |
0f5d0394 AE |
5304 | while (*proto == ';') |
5305 | proto++; | |
7a52d87a | 5306 | if (*proto == '&' && *s == '{') { |
bfed75c6 | 5307 | sv_setpv(PL_subname, PL_curstash ? |
c99da370 | 5308 | "__ANON__" : "__ANON__::__ANON__"); |
4633a7c4 LW |
5309 | PREBLOCK(LSTOPSUB); |
5310 | } | |
a9ef352a | 5311 | } |
5db06880 NC |
5312 | #ifdef PERL_MAD |
5313 | { | |
5314 | if (PL_madskills) { | |
cd81e915 NC |
5315 | PL_nextwhite = PL_thiswhite; |
5316 | PL_thiswhite = 0; | |
5db06880 | 5317 | } |
cd81e915 | 5318 | start_force(PL_curforce); |
5db06880 NC |
5319 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
5320 | PL_expect = XTERM; | |
5321 | if (PL_madskills) { | |
cd81e915 NC |
5322 | PL_nextwhite = nextPL_nextwhite; |
5323 | curmad('X', PL_thistoken); | |
5324 | PL_thistoken = newSVpvn("",0); | |
5db06880 NC |
5325 | } |
5326 | force_next(WORD); | |
5327 | TOKEN(NOAMP); | |
5328 | } | |
5329 | } | |
5330 | ||
5331 | /* Guess harder when madskills require "best effort". */ | |
5332 | if (PL_madskills && (!gv || !GvCVu(gv))) { | |
5333 | int probable_sub = 0; | |
5334 | if (strchr("\"'`$@%0123456789!*+{[<", *s)) | |
5335 | probable_sub = 1; | |
5336 | else if (isALPHA(*s)) { | |
5337 | char tmpbuf[1024]; | |
5338 | STRLEN tmplen; | |
5339 | d = s; | |
5340 | d = scan_word(d, tmpbuf, sizeof tmpbuf, TRUE, &tmplen); | |
5341 | if (!keyword(tmpbuf,tmplen)) | |
5342 | probable_sub = 1; | |
5343 | else { | |
5344 | while (d < PL_bufend && isSPACE(*d)) | |
5345 | d++; | |
5346 | if (*d == '=' && d[1] == '>') | |
5347 | probable_sub = 1; | |
5348 | } | |
5349 | } | |
5350 | if (probable_sub) { | |
5351 | gv = gv_fetchpv(PL_tokenbuf, TRUE, SVt_PVCV); | |
5352 | op_free(yylval.opval); | |
5353 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
5354 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; | |
5355 | PL_last_lop = PL_oldbufptr; | |
5356 | PL_last_lop_op = OP_ENTERSUB; | |
cd81e915 NC |
5357 | PL_nextwhite = PL_thiswhite; |
5358 | PL_thiswhite = 0; | |
5359 | start_force(PL_curforce); | |
5db06880 NC |
5360 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
5361 | PL_expect = XTERM; | |
cd81e915 NC |
5362 | PL_nextwhite = nextPL_nextwhite; |
5363 | curmad('X', PL_thistoken); | |
5364 | PL_thistoken = newSVpvn("",0); | |
5db06880 NC |
5365 | force_next(WORD); |
5366 | TOKEN(NOAMP); | |
5367 | } | |
5368 | #else | |
9ded7720 | 5369 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 5370 | PL_expect = XTERM; |
8990e307 LW |
5371 | force_next(WORD); |
5372 | TOKEN(NOAMP); | |
5db06880 | 5373 | #endif |
8990e307 | 5374 | } |
748a9306 | 5375 | |
8990e307 LW |
5376 | /* Call it a bare word */ |
5377 | ||
5603f27d GS |
5378 | if (PL_hints & HINT_STRICT_SUBS) |
5379 | yylval.opval->op_private |= OPpCONST_STRICT; | |
5380 | else { | |
5381 | bareword: | |
041457d9 DM |
5382 | if (lastchar != '-') { |
5383 | if (ckWARN(WARN_RESERVED)) { | |
c35e046a AL |
5384 | d = PL_tokenbuf; |
5385 | while (isLOWER(*d)) | |
5386 | d++; | |
238ae712 | 5387 | if (!*d && !gv_stashpv(PL_tokenbuf,FALSE)) |
9014280d | 5388 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
5389 | PL_tokenbuf); |
5390 | } | |
748a9306 LW |
5391 | } |
5392 | } | |
c3e0f903 GS |
5393 | |
5394 | safe_bareword: | |
3792a11b NC |
5395 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&') |
5396 | && ckWARN_d(WARN_AMBIGUOUS)) { | |
9014280d | 5397 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5398 | "Operator or semicolon missing before %c%s", |
3280af22 | 5399 | lastchar, PL_tokenbuf); |
9014280d | 5400 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5401 | "Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
5402 | lastchar, lastchar); |
5403 | } | |
93a17b20 | 5404 | TOKEN(WORD); |
79072805 | 5405 | } |
79072805 | 5406 | |
68dc0745 | 5407 | case KEY___FILE__: |
46fc3d4c | 5408 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 5409 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 5410 | TERM(THING); |
5411 | ||
79072805 | 5412 | case KEY___LINE__: |
cf2093f6 | 5413 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 5414 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 5415 | TERM(THING); |
68dc0745 | 5416 | |
5417 | case KEY___PACKAGE__: | |
5418 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, | |
3280af22 | 5419 | (PL_curstash |
5aaec2b4 | 5420 | ? newSVhek(HvNAME_HEK(PL_curstash)) |
3280af22 | 5421 | : &PL_sv_undef)); |
79072805 | 5422 | TERM(THING); |
79072805 | 5423 | |
e50aee73 | 5424 | case KEY___DATA__: |
79072805 LW |
5425 | case KEY___END__: { |
5426 | GV *gv; | |
3280af22 | 5427 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
bfed75c6 | 5428 | const char *pname = "main"; |
3280af22 | 5429 | if (PL_tokenbuf[2] == 'D') |
bfcb3514 | 5430 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
f776e3cd NC |
5431 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD, |
5432 | SVt_PVIO); | |
a5f75d66 | 5433 | GvMULTI_on(gv); |
79072805 | 5434 | if (!GvIO(gv)) |
a0d0e21e | 5435 | GvIOp(gv) = newIO(); |
3280af22 | 5436 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
5437 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
5438 | { | |
f54cb97a | 5439 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
5440 | fcntl(fd,F_SETFD,fd >= 3); |
5441 | } | |
79072805 | 5442 | #endif |
fd049845 | 5443 | /* Mark this internal pseudo-handle as clean */ |
5444 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
3280af22 | 5445 | if (PL_preprocess) |
50952442 | 5446 | IoTYPE(GvIOp(gv)) = IoTYPE_PIPE; |
3280af22 | 5447 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 5448 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 5449 | else |
50952442 | 5450 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
5451 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
5452 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 5453 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 5454 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
5455 | if (PL_bufend-PL_bufptr > 2 |
5456 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
5457 | { |
5458 | Off_t loc = 0; | |
50952442 | 5459 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
5460 | loc = PerlIO_tell(PL_rsfp); |
5461 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
5462 | } | |
2986a63f JH |
5463 | #ifdef NETWARE |
5464 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
5465 | #else | |
c39cd008 | 5466 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 5467 | #endif /* NETWARE */ |
1143fce0 JH |
5468 | #ifdef PERLIO_IS_STDIO /* really? */ |
5469 | # if defined(__BORLANDC__) | |
cb359b41 JH |
5470 | /* XXX see note in do_binmode() */ |
5471 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
5472 | # endif |
5473 | #endif | |
c39cd008 GS |
5474 | if (loc > 0) |
5475 | PerlIO_seek(PL_rsfp, loc, 0); | |
5476 | } | |
5477 | } | |
5478 | #endif | |
7948272d | 5479 | #ifdef PERLIO_LAYERS |
52d2e0f4 JH |
5480 | if (!IN_BYTES) { |
5481 | if (UTF) | |
5482 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
5483 | else if (PL_encoding) { | |
5484 | SV *name; | |
5485 | dSP; | |
5486 | ENTER; | |
5487 | SAVETMPS; | |
5488 | PUSHMARK(sp); | |
5489 | EXTEND(SP, 1); | |
5490 | XPUSHs(PL_encoding); | |
5491 | PUTBACK; | |
5492 | call_method("name", G_SCALAR); | |
5493 | SPAGAIN; | |
5494 | name = POPs; | |
5495 | PUTBACK; | |
bfed75c6 | 5496 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
52d2e0f4 | 5497 | Perl_form(aTHX_ ":encoding(%"SVf")", |
95b63a38 | 5498 | (void*)name)); |
52d2e0f4 JH |
5499 | FREETMPS; |
5500 | LEAVE; | |
5501 | } | |
5502 | } | |
7948272d | 5503 | #endif |
5db06880 NC |
5504 | #ifdef PERL_MAD |
5505 | if (PL_madskills) { | |
cd81e915 NC |
5506 | if (PL_realtokenstart >= 0) { |
5507 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; | |
5508 | if (!PL_endwhite) | |
5509 | PL_endwhite = newSVpvn("",0); | |
5510 | sv_catsv(PL_endwhite, PL_thiswhite); | |
5511 | PL_thiswhite = 0; | |
5512 | sv_catpvn(PL_endwhite, tstart, PL_bufend - tstart); | |
5513 | PL_realtokenstart = -1; | |
5db06880 | 5514 | } |
cd81e915 NC |
5515 | while ((s = filter_gets(PL_endwhite, PL_rsfp, |
5516 | SvCUR(PL_endwhite))) != Nullch) ; | |
5db06880 NC |
5517 | } |
5518 | #endif | |
4608196e | 5519 | PL_rsfp = NULL; |
79072805 LW |
5520 | } |
5521 | goto fake_eof; | |
e929a76b | 5522 | } |
de3bb511 | 5523 | |
8990e307 | 5524 | case KEY_AUTOLOAD: |
ed6116ce | 5525 | case KEY_DESTROY: |
79072805 | 5526 | case KEY_BEGIN: |
7d30b5c4 | 5527 | case KEY_CHECK: |
7d07dbc2 | 5528 | case KEY_INIT: |
7d30b5c4 | 5529 | case KEY_END: |
3280af22 NIS |
5530 | if (PL_expect == XSTATE) { |
5531 | s = PL_bufptr; | |
93a17b20 | 5532 | goto really_sub; |
79072805 LW |
5533 | } |
5534 | goto just_a_word; | |
5535 | ||
a0d0e21e LW |
5536 | case KEY_CORE: |
5537 | if (*s == ':' && s[1] == ':') { | |
5538 | s += 2; | |
748a9306 | 5539 | d = s; |
3280af22 | 5540 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
6798c92b GS |
5541 | if (!(tmp = keyword(PL_tokenbuf, len))) |
5542 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); | |
a0d0e21e LW |
5543 | if (tmp < 0) |
5544 | tmp = -tmp; | |
850e8516 | 5545 | else if (tmp == KEY_require || tmp == KEY_do) |
a72a1c8b | 5546 | /* that's a way to remember we saw "CORE::" */ |
850e8516 | 5547 | orig_keyword = tmp; |
a0d0e21e LW |
5548 | goto reserved_word; |
5549 | } | |
5550 | goto just_a_word; | |
5551 | ||
463ee0b2 LW |
5552 | case KEY_abs: |
5553 | UNI(OP_ABS); | |
5554 | ||
79072805 LW |
5555 | case KEY_alarm: |
5556 | UNI(OP_ALARM); | |
5557 | ||
5558 | case KEY_accept: | |
a0d0e21e | 5559 | LOP(OP_ACCEPT,XTERM); |
79072805 | 5560 | |
463ee0b2 LW |
5561 | case KEY_and: |
5562 | OPERATOR(ANDOP); | |
5563 | ||
79072805 | 5564 | case KEY_atan2: |
a0d0e21e | 5565 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 5566 | |
79072805 | 5567 | case KEY_bind: |
a0d0e21e | 5568 | LOP(OP_BIND,XTERM); |
79072805 LW |
5569 | |
5570 | case KEY_binmode: | |
1c1fc3ea | 5571 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
5572 | |
5573 | case KEY_bless: | |
a0d0e21e | 5574 | LOP(OP_BLESS,XTERM); |
79072805 | 5575 | |
0d863452 RH |
5576 | case KEY_break: |
5577 | FUN0(OP_BREAK); | |
5578 | ||
79072805 LW |
5579 | case KEY_chop: |
5580 | UNI(OP_CHOP); | |
5581 | ||
5582 | case KEY_continue: | |
0d863452 RH |
5583 | /* When 'use switch' is in effect, continue has a dual |
5584 | life as a control operator. */ | |
5585 | { | |
ef89dcc3 | 5586 | if (!FEATURE_IS_ENABLED("switch")) |
0d863452 RH |
5587 | PREBLOCK(CONTINUE); |
5588 | else { | |
5589 | /* We have to disambiguate the two senses of | |
5590 | "continue". If the next token is a '{' then | |
5591 | treat it as the start of a continue block; | |
5592 | otherwise treat it as a control operator. | |
5593 | */ | |
5594 | s = skipspace(s); | |
5595 | if (*s == '{') | |
79072805 | 5596 | PREBLOCK(CONTINUE); |
0d863452 RH |
5597 | else |
5598 | FUN0(OP_CONTINUE); | |
5599 | } | |
5600 | } | |
79072805 LW |
5601 | |
5602 | case KEY_chdir: | |
fafc274c NC |
5603 | /* may use HOME */ |
5604 | (void)gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV); | |
79072805 LW |
5605 | UNI(OP_CHDIR); |
5606 | ||
5607 | case KEY_close: | |
5608 | UNI(OP_CLOSE); | |
5609 | ||
5610 | case KEY_closedir: | |
5611 | UNI(OP_CLOSEDIR); | |
5612 | ||
5613 | case KEY_cmp: | |
5614 | Eop(OP_SCMP); | |
5615 | ||
5616 | case KEY_caller: | |
5617 | UNI(OP_CALLER); | |
5618 | ||
5619 | case KEY_crypt: | |
5620 | #ifdef FCRYPT | |
f4c556ac GS |
5621 | if (!PL_cryptseen) { |
5622 | PL_cryptseen = TRUE; | |
de3bb511 | 5623 | init_des(); |
f4c556ac | 5624 | } |
a687059c | 5625 | #endif |
a0d0e21e | 5626 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
5627 | |
5628 | case KEY_chmod: | |
a0d0e21e | 5629 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
5630 | |
5631 | case KEY_chown: | |
a0d0e21e | 5632 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
5633 | |
5634 | case KEY_connect: | |
a0d0e21e | 5635 | LOP(OP_CONNECT,XTERM); |
79072805 | 5636 | |
463ee0b2 LW |
5637 | case KEY_chr: |
5638 | UNI(OP_CHR); | |
5639 | ||
79072805 LW |
5640 | case KEY_cos: |
5641 | UNI(OP_COS); | |
5642 | ||
5643 | case KEY_chroot: | |
5644 | UNI(OP_CHROOT); | |
5645 | ||
0d863452 RH |
5646 | case KEY_default: |
5647 | PREBLOCK(DEFAULT); | |
5648 | ||
79072805 | 5649 | case KEY_do: |
29595ff2 | 5650 | s = SKIPSPACE1(s); |
79072805 | 5651 | if (*s == '{') |
a0d0e21e | 5652 | PRETERMBLOCK(DO); |
79072805 | 5653 | if (*s != '\'') |
89c5585f | 5654 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
850e8516 RGS |
5655 | if (orig_keyword == KEY_do) { |
5656 | orig_keyword = 0; | |
5657 | yylval.ival = 1; | |
5658 | } | |
5659 | else | |
5660 | yylval.ival = 0; | |
378cc40b | 5661 | OPERATOR(DO); |
79072805 LW |
5662 | |
5663 | case KEY_die: | |
3280af22 | 5664 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 5665 | LOP(OP_DIE,XTERM); |
79072805 LW |
5666 | |
5667 | case KEY_defined: | |
5668 | UNI(OP_DEFINED); | |
5669 | ||
5670 | case KEY_delete: | |
a0d0e21e | 5671 | UNI(OP_DELETE); |
79072805 LW |
5672 | |
5673 | case KEY_dbmopen: | |
5c1737d1 | 5674 | gv_fetchpvs("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
a0d0e21e | 5675 | LOP(OP_DBMOPEN,XTERM); |
79072805 LW |
5676 | |
5677 | case KEY_dbmclose: | |
5678 | UNI(OP_DBMCLOSE); | |
5679 | ||
5680 | case KEY_dump: | |
a0d0e21e | 5681 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5682 | LOOPX(OP_DUMP); |
5683 | ||
5684 | case KEY_else: | |
5685 | PREBLOCK(ELSE); | |
5686 | ||
5687 | case KEY_elsif: | |
57843af0 | 5688 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5689 | OPERATOR(ELSIF); |
5690 | ||
5691 | case KEY_eq: | |
5692 | Eop(OP_SEQ); | |
5693 | ||
a0d0e21e LW |
5694 | case KEY_exists: |
5695 | UNI(OP_EXISTS); | |
4e553d73 | 5696 | |
79072805 | 5697 | case KEY_exit: |
5db06880 NC |
5698 | if (PL_madskills) |
5699 | UNI(OP_INT); | |
79072805 LW |
5700 | UNI(OP_EXIT); |
5701 | ||
5702 | case KEY_eval: | |
29595ff2 | 5703 | s = SKIPSPACE1(s); |
3280af22 | 5704 | PL_expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 5705 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
5706 | |
5707 | case KEY_eof: | |
5708 | UNI(OP_EOF); | |
5709 | ||
c963b151 BD |
5710 | case KEY_err: |
5711 | OPERATOR(DOROP); | |
5712 | ||
79072805 LW |
5713 | case KEY_exp: |
5714 | UNI(OP_EXP); | |
5715 | ||
5716 | case KEY_each: | |
5717 | UNI(OP_EACH); | |
5718 | ||
5719 | case KEY_exec: | |
5720 | set_csh(); | |
a0d0e21e | 5721 | LOP(OP_EXEC,XREF); |
79072805 LW |
5722 | |
5723 | case KEY_endhostent: | |
5724 | FUN0(OP_EHOSTENT); | |
5725 | ||
5726 | case KEY_endnetent: | |
5727 | FUN0(OP_ENETENT); | |
5728 | ||
5729 | case KEY_endservent: | |
5730 | FUN0(OP_ESERVENT); | |
5731 | ||
5732 | case KEY_endprotoent: | |
5733 | FUN0(OP_EPROTOENT); | |
5734 | ||
5735 | case KEY_endpwent: | |
5736 | FUN0(OP_EPWENT); | |
5737 | ||
5738 | case KEY_endgrent: | |
5739 | FUN0(OP_EGRENT); | |
5740 | ||
5741 | case KEY_for: | |
5742 | case KEY_foreach: | |
57843af0 | 5743 | yylval.ival = CopLINE(PL_curcop); |
29595ff2 | 5744 | s = SKIPSPACE1(s); |
7e2040f0 | 5745 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 5746 | char *p = s; |
5db06880 NC |
5747 | #ifdef PERL_MAD |
5748 | int soff = s - SvPVX(PL_linestr); /* for skipspace realloc */ | |
5749 | #endif | |
5750 | ||
3280af22 | 5751 | if ((PL_bufend - p) >= 3 && |
55497cff | 5752 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
5753 | p += 2; | |
77ca0c92 LW |
5754 | else if ((PL_bufend - p) >= 4 && |
5755 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
5756 | p += 3; | |
29595ff2 | 5757 | p = PEEKSPACE(p); |
7e2040f0 | 5758 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
5759 | p = scan_ident(p, PL_bufend, |
5760 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
29595ff2 | 5761 | p = PEEKSPACE(p); |
77ca0c92 LW |
5762 | } |
5763 | if (*p != '$') | |
cea2e8a9 | 5764 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
5db06880 NC |
5765 | #ifdef PERL_MAD |
5766 | s = SvPVX(PL_linestr) + soff; | |
5767 | #endif | |
55497cff | 5768 | } |
79072805 LW |
5769 | OPERATOR(FOR); |
5770 | ||
5771 | case KEY_formline: | |
a0d0e21e | 5772 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
5773 | |
5774 | case KEY_fork: | |
5775 | FUN0(OP_FORK); | |
5776 | ||
5777 | case KEY_fcntl: | |
a0d0e21e | 5778 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
5779 | |
5780 | case KEY_fileno: | |
5781 | UNI(OP_FILENO); | |
5782 | ||
5783 | case KEY_flock: | |
a0d0e21e | 5784 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
5785 | |
5786 | case KEY_gt: | |
5787 | Rop(OP_SGT); | |
5788 | ||
5789 | case KEY_ge: | |
5790 | Rop(OP_SGE); | |
5791 | ||
5792 | case KEY_grep: | |
2c38e13d | 5793 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
5794 | |
5795 | case KEY_goto: | |
a0d0e21e | 5796 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5797 | LOOPX(OP_GOTO); |
5798 | ||
5799 | case KEY_gmtime: | |
5800 | UNI(OP_GMTIME); | |
5801 | ||
5802 | case KEY_getc: | |
6f33ba73 | 5803 | UNIDOR(OP_GETC); |
79072805 LW |
5804 | |
5805 | case KEY_getppid: | |
5806 | FUN0(OP_GETPPID); | |
5807 | ||
5808 | case KEY_getpgrp: | |
5809 | UNI(OP_GETPGRP); | |
5810 | ||
5811 | case KEY_getpriority: | |
a0d0e21e | 5812 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
5813 | |
5814 | case KEY_getprotobyname: | |
5815 | UNI(OP_GPBYNAME); | |
5816 | ||
5817 | case KEY_getprotobynumber: | |
a0d0e21e | 5818 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
5819 | |
5820 | case KEY_getprotoent: | |
5821 | FUN0(OP_GPROTOENT); | |
5822 | ||
5823 | case KEY_getpwent: | |
5824 | FUN0(OP_GPWENT); | |
5825 | ||
5826 | case KEY_getpwnam: | |
ff68c719 | 5827 | UNI(OP_GPWNAM); |
79072805 LW |
5828 | |
5829 | case KEY_getpwuid: | |
ff68c719 | 5830 | UNI(OP_GPWUID); |
79072805 LW |
5831 | |
5832 | case KEY_getpeername: | |
5833 | UNI(OP_GETPEERNAME); | |
5834 | ||
5835 | case KEY_gethostbyname: | |
5836 | UNI(OP_GHBYNAME); | |
5837 | ||
5838 | case KEY_gethostbyaddr: | |
a0d0e21e | 5839 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
5840 | |
5841 | case KEY_gethostent: | |
5842 | FUN0(OP_GHOSTENT); | |
5843 | ||
5844 | case KEY_getnetbyname: | |
5845 | UNI(OP_GNBYNAME); | |
5846 | ||
5847 | case KEY_getnetbyaddr: | |
a0d0e21e | 5848 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
5849 | |
5850 | case KEY_getnetent: | |
5851 | FUN0(OP_GNETENT); | |
5852 | ||
5853 | case KEY_getservbyname: | |
a0d0e21e | 5854 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
5855 | |
5856 | case KEY_getservbyport: | |
a0d0e21e | 5857 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
5858 | |
5859 | case KEY_getservent: | |
5860 | FUN0(OP_GSERVENT); | |
5861 | ||
5862 | case KEY_getsockname: | |
5863 | UNI(OP_GETSOCKNAME); | |
5864 | ||
5865 | case KEY_getsockopt: | |
a0d0e21e | 5866 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
5867 | |
5868 | case KEY_getgrent: | |
5869 | FUN0(OP_GGRENT); | |
5870 | ||
5871 | case KEY_getgrnam: | |
ff68c719 | 5872 | UNI(OP_GGRNAM); |
79072805 LW |
5873 | |
5874 | case KEY_getgrgid: | |
ff68c719 | 5875 | UNI(OP_GGRGID); |
79072805 LW |
5876 | |
5877 | case KEY_getlogin: | |
5878 | FUN0(OP_GETLOGIN); | |
5879 | ||
0d863452 RH |
5880 | case KEY_given: |
5881 | yylval.ival = CopLINE(PL_curcop); | |
5882 | OPERATOR(GIVEN); | |
5883 | ||
93a17b20 | 5884 | case KEY_glob: |
a0d0e21e LW |
5885 | set_csh(); |
5886 | LOP(OP_GLOB,XTERM); | |
93a17b20 | 5887 | |
79072805 LW |
5888 | case KEY_hex: |
5889 | UNI(OP_HEX); | |
5890 | ||
5891 | case KEY_if: | |
57843af0 | 5892 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5893 | OPERATOR(IF); |
5894 | ||
5895 | case KEY_index: | |
a0d0e21e | 5896 | LOP(OP_INDEX,XTERM); |
79072805 LW |
5897 | |
5898 | case KEY_int: | |
5899 | UNI(OP_INT); | |
5900 | ||
5901 | case KEY_ioctl: | |
a0d0e21e | 5902 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
5903 | |
5904 | case KEY_join: | |
a0d0e21e | 5905 | LOP(OP_JOIN,XTERM); |
79072805 LW |
5906 | |
5907 | case KEY_keys: | |
5908 | UNI(OP_KEYS); | |
5909 | ||
5910 | case KEY_kill: | |
a0d0e21e | 5911 | LOP(OP_KILL,XTERM); |
79072805 LW |
5912 | |
5913 | case KEY_last: | |
a0d0e21e | 5914 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 5915 | LOOPX(OP_LAST); |
4e553d73 | 5916 | |
79072805 LW |
5917 | case KEY_lc: |
5918 | UNI(OP_LC); | |
5919 | ||
5920 | case KEY_lcfirst: | |
5921 | UNI(OP_LCFIRST); | |
5922 | ||
5923 | case KEY_local: | |
09bef843 | 5924 | yylval.ival = 0; |
79072805 LW |
5925 | OPERATOR(LOCAL); |
5926 | ||
5927 | case KEY_length: | |
5928 | UNI(OP_LENGTH); | |
5929 | ||
5930 | case KEY_lt: | |
5931 | Rop(OP_SLT); | |
5932 | ||
5933 | case KEY_le: | |
5934 | Rop(OP_SLE); | |
5935 | ||
5936 | case KEY_localtime: | |
5937 | UNI(OP_LOCALTIME); | |
5938 | ||
5939 | case KEY_log: | |
5940 | UNI(OP_LOG); | |
5941 | ||
5942 | case KEY_link: | |
a0d0e21e | 5943 | LOP(OP_LINK,XTERM); |
79072805 LW |
5944 | |
5945 | case KEY_listen: | |
a0d0e21e | 5946 | LOP(OP_LISTEN,XTERM); |
79072805 | 5947 | |
c0329465 MB |
5948 | case KEY_lock: |
5949 | UNI(OP_LOCK); | |
5950 | ||
79072805 LW |
5951 | case KEY_lstat: |
5952 | UNI(OP_LSTAT); | |
5953 | ||
5954 | case KEY_m: | |
8782bef2 | 5955 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
5956 | TERM(sublex_start()); |
5957 | ||
a0d0e21e | 5958 | case KEY_map: |
2c38e13d | 5959 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 5960 | |
79072805 | 5961 | case KEY_mkdir: |
a0d0e21e | 5962 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
5963 | |
5964 | case KEY_msgctl: | |
a0d0e21e | 5965 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
5966 | |
5967 | case KEY_msgget: | |
a0d0e21e | 5968 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
5969 | |
5970 | case KEY_msgrcv: | |
a0d0e21e | 5971 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
5972 | |
5973 | case KEY_msgsnd: | |
a0d0e21e | 5974 | LOP(OP_MSGSND,XTERM); |
79072805 | 5975 | |
77ca0c92 | 5976 | case KEY_our: |
93a17b20 | 5977 | case KEY_my: |
952306ac | 5978 | case KEY_state: |
77ca0c92 | 5979 | PL_in_my = tmp; |
29595ff2 | 5980 | s = SKIPSPACE1(s); |
7e2040f0 | 5981 | if (isIDFIRST_lazy_if(s,UTF)) { |
5db06880 NC |
5982 | #ifdef PERL_MAD |
5983 | char* start = s; | |
5984 | #endif | |
3280af22 | 5985 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
5986 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
5987 | goto really_sub; | |
def3634b | 5988 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 5989 | if (!PL_in_my_stash) { |
c750a3ec | 5990 | char tmpbuf[1024]; |
3280af22 | 5991 | PL_bufptr = s; |
d9fad198 | 5992 | my_snprintf(tmpbuf, sizeof(tmpbuf), "No such class %.1000s", PL_tokenbuf); |
c750a3ec MB |
5993 | yyerror(tmpbuf); |
5994 | } | |
5db06880 NC |
5995 | #ifdef PERL_MAD |
5996 | if (PL_madskills) { /* just add type to declarator token */ | |
cd81e915 NC |
5997 | sv_catsv(PL_thistoken, PL_nextwhite); |
5998 | PL_nextwhite = 0; | |
5999 | sv_catpvn(PL_thistoken, start, s - start); | |
5db06880 NC |
6000 | } |
6001 | #endif | |
c750a3ec | 6002 | } |
09bef843 | 6003 | yylval.ival = 1; |
55497cff | 6004 | OPERATOR(MY); |
93a17b20 | 6005 | |
79072805 | 6006 | case KEY_next: |
a0d0e21e | 6007 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6008 | LOOPX(OP_NEXT); |
6009 | ||
6010 | case KEY_ne: | |
6011 | Eop(OP_SNE); | |
6012 | ||
a0d0e21e | 6013 | case KEY_no: |
468aa647 | 6014 | s = tokenize_use(0, s); |
a0d0e21e LW |
6015 | OPERATOR(USE); |
6016 | ||
6017 | case KEY_not: | |
29595ff2 | 6018 | if (*s == '(' || (s = SKIPSPACE1(s), *s == '(')) |
2d2e263d LW |
6019 | FUN1(OP_NOT); |
6020 | else | |
6021 | OPERATOR(NOTOP); | |
a0d0e21e | 6022 | |
79072805 | 6023 | case KEY_open: |
29595ff2 | 6024 | s = SKIPSPACE1(s); |
7e2040f0 | 6025 | if (isIDFIRST_lazy_if(s,UTF)) { |
f54cb97a | 6026 | const char *t; |
c35e046a AL |
6027 | for (d = s; isALNUM_lazy_if(d,UTF);) |
6028 | d++; | |
6029 | for (t=d; isSPACE(*t);) | |
6030 | t++; | |
e2ab214b | 6031 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) |
66fbe8fb HS |
6032 | /* [perl #16184] */ |
6033 | && !(t[0] == '=' && t[1] == '>') | |
6034 | ) { | |
5f66b61c | 6035 | int parms_len = (int)(d-s); |
9014280d | 6036 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 6037 | "Precedence problem: open %.*s should be open(%.*s)", |
5f66b61c | 6038 | parms_len, s, parms_len, s); |
66fbe8fb | 6039 | } |
93a17b20 | 6040 | } |
a0d0e21e | 6041 | LOP(OP_OPEN,XTERM); |
79072805 | 6042 | |
463ee0b2 | 6043 | case KEY_or: |
a0d0e21e | 6044 | yylval.ival = OP_OR; |
463ee0b2 LW |
6045 | OPERATOR(OROP); |
6046 | ||
79072805 LW |
6047 | case KEY_ord: |
6048 | UNI(OP_ORD); | |
6049 | ||
6050 | case KEY_oct: | |
6051 | UNI(OP_OCT); | |
6052 | ||
6053 | case KEY_opendir: | |
a0d0e21e | 6054 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
6055 | |
6056 | case KEY_print: | |
3280af22 | 6057 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6058 | LOP(OP_PRINT,XREF); |
79072805 LW |
6059 | |
6060 | case KEY_printf: | |
3280af22 | 6061 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6062 | LOP(OP_PRTF,XREF); |
79072805 | 6063 | |
c07a80fd | 6064 | case KEY_prototype: |
6065 | UNI(OP_PROTOTYPE); | |
6066 | ||
79072805 | 6067 | case KEY_push: |
a0d0e21e | 6068 | LOP(OP_PUSH,XTERM); |
79072805 LW |
6069 | |
6070 | case KEY_pop: | |
6f33ba73 | 6071 | UNIDOR(OP_POP); |
79072805 | 6072 | |
a0d0e21e | 6073 | case KEY_pos: |
6f33ba73 | 6074 | UNIDOR(OP_POS); |
4e553d73 | 6075 | |
79072805 | 6076 | case KEY_pack: |
a0d0e21e | 6077 | LOP(OP_PACK,XTERM); |
79072805 LW |
6078 | |
6079 | case KEY_package: | |
a0d0e21e | 6080 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
6081 | OPERATOR(PACKAGE); |
6082 | ||
6083 | case KEY_pipe: | |
a0d0e21e | 6084 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
6085 | |
6086 | case KEY_q: | |
5db06880 | 6087 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6088 | if (!s) |
d4c19fe8 | 6089 | missingterm(NULL); |
79072805 LW |
6090 | yylval.ival = OP_CONST; |
6091 | TERM(sublex_start()); | |
6092 | ||
a0d0e21e LW |
6093 | case KEY_quotemeta: |
6094 | UNI(OP_QUOTEMETA); | |
6095 | ||
8990e307 | 6096 | case KEY_qw: |
5db06880 | 6097 | s = scan_str(s,!!PL_madskills,FALSE); |
8990e307 | 6098 | if (!s) |
d4c19fe8 | 6099 | missingterm(NULL); |
3480a8d2 | 6100 | PL_expect = XOPERATOR; |
8127e0e3 GS |
6101 | force_next(')'); |
6102 | if (SvCUR(PL_lex_stuff)) { | |
5f66b61c | 6103 | OP *words = NULL; |
8127e0e3 | 6104 | int warned = 0; |
3280af22 | 6105 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 6106 | while (len) { |
d4c19fe8 AL |
6107 | for (; isSPACE(*d) && len; --len, ++d) |
6108 | /**/; | |
8127e0e3 | 6109 | if (len) { |
d4c19fe8 | 6110 | SV *sv; |
f54cb97a | 6111 | const char *b = d; |
e476b1b5 | 6112 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
6113 | for (; !isSPACE(*d) && len; --len, ++d) { |
6114 | if (*d == ',') { | |
9014280d | 6115 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6116 | "Possible attempt to separate words with commas"); |
6117 | ++warned; | |
6118 | } | |
6119 | else if (*d == '#') { | |
9014280d | 6120 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6121 | "Possible attempt to put comments in qw() list"); |
6122 | ++warned; | |
6123 | } | |
6124 | } | |
6125 | } | |
6126 | else { | |
d4c19fe8 AL |
6127 | for (; !isSPACE(*d) && len; --len, ++d) |
6128 | /**/; | |
8127e0e3 | 6129 | } |
7948272d NIS |
6130 | sv = newSVpvn(b, d-b); |
6131 | if (DO_UTF8(PL_lex_stuff)) | |
6132 | SvUTF8_on(sv); | |
8127e0e3 | 6133 | words = append_elem(OP_LIST, words, |
7948272d | 6134 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 6135 | } |
6136 | } | |
8127e0e3 | 6137 | if (words) { |
cd81e915 | 6138 | start_force(PL_curforce); |
9ded7720 | 6139 | NEXTVAL_NEXTTOKE.opval = words; |
8127e0e3 GS |
6140 | force_next(THING); |
6141 | } | |
55497cff | 6142 | } |
37fd879b | 6143 | if (PL_lex_stuff) { |
8127e0e3 | 6144 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 6145 | PL_lex_stuff = NULL; |
37fd879b | 6146 | } |
3280af22 | 6147 | PL_expect = XTERM; |
8127e0e3 | 6148 | TOKEN('('); |
8990e307 | 6149 | |
79072805 | 6150 | case KEY_qq: |
5db06880 | 6151 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6152 | if (!s) |
d4c19fe8 | 6153 | missingterm(NULL); |
a0d0e21e | 6154 | yylval.ival = OP_STRINGIFY; |
3280af22 | 6155 | if (SvIVX(PL_lex_stuff) == '\'') |
45977657 | 6156 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
6157 | TERM(sublex_start()); |
6158 | ||
8782bef2 GB |
6159 | case KEY_qr: |
6160 | s = scan_pat(s,OP_QR); | |
6161 | TERM(sublex_start()); | |
6162 | ||
79072805 | 6163 | case KEY_qx: |
5db06880 | 6164 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6165 | if (!s) |
d4c19fe8 | 6166 | missingterm(NULL); |
79072805 LW |
6167 | yylval.ival = OP_BACKTICK; |
6168 | set_csh(); | |
6169 | TERM(sublex_start()); | |
6170 | ||
6171 | case KEY_return: | |
6172 | OLDLOP(OP_RETURN); | |
6173 | ||
6174 | case KEY_require: | |
29595ff2 | 6175 | s = SKIPSPACE1(s); |
e759cc13 RGS |
6176 | if (isDIGIT(*s)) { |
6177 | s = force_version(s, FALSE); | |
a7cb1f99 | 6178 | } |
e759cc13 RGS |
6179 | else if (*s != 'v' || !isDIGIT(s[1]) |
6180 | || (s = force_version(s, TRUE), *s == 'v')) | |
6181 | { | |
a7cb1f99 GS |
6182 | *PL_tokenbuf = '\0'; |
6183 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 6184 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
a7cb1f99 GS |
6185 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), TRUE); |
6186 | else if (*s == '<') | |
6187 | yyerror("<> should be quotes"); | |
6188 | } | |
a72a1c8b RGS |
6189 | if (orig_keyword == KEY_require) { |
6190 | orig_keyword = 0; | |
6191 | yylval.ival = 1; | |
6192 | } | |
6193 | else | |
6194 | yylval.ival = 0; | |
6195 | PL_expect = XTERM; | |
6196 | PL_bufptr = s; | |
6197 | PL_last_uni = PL_oldbufptr; | |
6198 | PL_last_lop_op = OP_REQUIRE; | |
6199 | s = skipspace(s); | |
6200 | return REPORT( (int)REQUIRE ); | |
79072805 LW |
6201 | |
6202 | case KEY_reset: | |
6203 | UNI(OP_RESET); | |
6204 | ||
6205 | case KEY_redo: | |
a0d0e21e | 6206 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6207 | LOOPX(OP_REDO); |
6208 | ||
6209 | case KEY_rename: | |
a0d0e21e | 6210 | LOP(OP_RENAME,XTERM); |
79072805 LW |
6211 | |
6212 | case KEY_rand: | |
6213 | UNI(OP_RAND); | |
6214 | ||
6215 | case KEY_rmdir: | |
6216 | UNI(OP_RMDIR); | |
6217 | ||
6218 | case KEY_rindex: | |
a0d0e21e | 6219 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
6220 | |
6221 | case KEY_read: | |
a0d0e21e | 6222 | LOP(OP_READ,XTERM); |
79072805 LW |
6223 | |
6224 | case KEY_readdir: | |
6225 | UNI(OP_READDIR); | |
6226 | ||
93a17b20 LW |
6227 | case KEY_readline: |
6228 | set_csh(); | |
6f33ba73 | 6229 | UNIDOR(OP_READLINE); |
93a17b20 LW |
6230 | |
6231 | case KEY_readpipe: | |
6232 | set_csh(); | |
6233 | UNI(OP_BACKTICK); | |
6234 | ||
79072805 LW |
6235 | case KEY_rewinddir: |
6236 | UNI(OP_REWINDDIR); | |
6237 | ||
6238 | case KEY_recv: | |
a0d0e21e | 6239 | LOP(OP_RECV,XTERM); |
79072805 LW |
6240 | |
6241 | case KEY_reverse: | |
a0d0e21e | 6242 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
6243 | |
6244 | case KEY_readlink: | |
6f33ba73 | 6245 | UNIDOR(OP_READLINK); |
79072805 LW |
6246 | |
6247 | case KEY_ref: | |
6248 | UNI(OP_REF); | |
6249 | ||
6250 | case KEY_s: | |
6251 | s = scan_subst(s); | |
6252 | if (yylval.opval) | |
6253 | TERM(sublex_start()); | |
6254 | else | |
6255 | TOKEN(1); /* force error */ | |
6256 | ||
0d863452 RH |
6257 | case KEY_say: |
6258 | checkcomma(s,PL_tokenbuf,"filehandle"); | |
6259 | LOP(OP_SAY,XREF); | |
6260 | ||
a0d0e21e LW |
6261 | case KEY_chomp: |
6262 | UNI(OP_CHOMP); | |
4e553d73 | 6263 | |
79072805 LW |
6264 | case KEY_scalar: |
6265 | UNI(OP_SCALAR); | |
6266 | ||
6267 | case KEY_select: | |
a0d0e21e | 6268 | LOP(OP_SELECT,XTERM); |
79072805 LW |
6269 | |
6270 | case KEY_seek: | |
a0d0e21e | 6271 | LOP(OP_SEEK,XTERM); |
79072805 LW |
6272 | |
6273 | case KEY_semctl: | |
a0d0e21e | 6274 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
6275 | |
6276 | case KEY_semget: | |
a0d0e21e | 6277 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
6278 | |
6279 | case KEY_semop: | |
a0d0e21e | 6280 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
6281 | |
6282 | case KEY_send: | |
a0d0e21e | 6283 | LOP(OP_SEND,XTERM); |
79072805 LW |
6284 | |
6285 | case KEY_setpgrp: | |
a0d0e21e | 6286 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
6287 | |
6288 | case KEY_setpriority: | |
a0d0e21e | 6289 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
6290 | |
6291 | case KEY_sethostent: | |
ff68c719 | 6292 | UNI(OP_SHOSTENT); |
79072805 LW |
6293 | |
6294 | case KEY_setnetent: | |
ff68c719 | 6295 | UNI(OP_SNETENT); |
79072805 LW |
6296 | |
6297 | case KEY_setservent: | |
ff68c719 | 6298 | UNI(OP_SSERVENT); |
79072805 LW |
6299 | |
6300 | case KEY_setprotoent: | |
ff68c719 | 6301 | UNI(OP_SPROTOENT); |
79072805 LW |
6302 | |
6303 | case KEY_setpwent: | |
6304 | FUN0(OP_SPWENT); | |
6305 | ||
6306 | case KEY_setgrent: | |
6307 | FUN0(OP_SGRENT); | |
6308 | ||
6309 | case KEY_seekdir: | |
a0d0e21e | 6310 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
6311 | |
6312 | case KEY_setsockopt: | |
a0d0e21e | 6313 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
6314 | |
6315 | case KEY_shift: | |
6f33ba73 | 6316 | UNIDOR(OP_SHIFT); |
79072805 LW |
6317 | |
6318 | case KEY_shmctl: | |
a0d0e21e | 6319 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
6320 | |
6321 | case KEY_shmget: | |
a0d0e21e | 6322 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
6323 | |
6324 | case KEY_shmread: | |
a0d0e21e | 6325 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
6326 | |
6327 | case KEY_shmwrite: | |
a0d0e21e | 6328 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
6329 | |
6330 | case KEY_shutdown: | |
a0d0e21e | 6331 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
6332 | |
6333 | case KEY_sin: | |
6334 | UNI(OP_SIN); | |
6335 | ||
6336 | case KEY_sleep: | |
6337 | UNI(OP_SLEEP); | |
6338 | ||
6339 | case KEY_socket: | |
a0d0e21e | 6340 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
6341 | |
6342 | case KEY_socketpair: | |
a0d0e21e | 6343 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
6344 | |
6345 | case KEY_sort: | |
3280af22 | 6346 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
29595ff2 | 6347 | s = SKIPSPACE1(s); |
79072805 | 6348 | if (*s == ';' || *s == ')') /* probably a close */ |
cea2e8a9 | 6349 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 6350 | PL_expect = XTERM; |
15f0808c | 6351 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 6352 | LOP(OP_SORT,XREF); |
79072805 LW |
6353 | |
6354 | case KEY_split: | |
a0d0e21e | 6355 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
6356 | |
6357 | case KEY_sprintf: | |
a0d0e21e | 6358 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
6359 | |
6360 | case KEY_splice: | |
a0d0e21e | 6361 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
6362 | |
6363 | case KEY_sqrt: | |
6364 | UNI(OP_SQRT); | |
6365 | ||
6366 | case KEY_srand: | |
6367 | UNI(OP_SRAND); | |
6368 | ||
6369 | case KEY_stat: | |
6370 | UNI(OP_STAT); | |
6371 | ||
6372 | case KEY_study: | |
79072805 LW |
6373 | UNI(OP_STUDY); |
6374 | ||
6375 | case KEY_substr: | |
a0d0e21e | 6376 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
6377 | |
6378 | case KEY_format: | |
6379 | case KEY_sub: | |
93a17b20 | 6380 | really_sub: |
09bef843 | 6381 | { |
3280af22 | 6382 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 6383 | SSize_t tboffset = 0; |
09bef843 | 6384 | expectation attrful; |
d731386a | 6385 | bool have_name, have_proto, bad_proto; |
f54cb97a | 6386 | const int key = tmp; |
09bef843 | 6387 | |
5db06880 NC |
6388 | #ifdef PERL_MAD |
6389 | SV *tmpwhite = 0; | |
6390 | ||
cd81e915 | 6391 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
5db06880 | 6392 | SV *subtoken = newSVpvn(tstart, s - tstart); |
cd81e915 | 6393 | PL_thistoken = 0; |
5db06880 NC |
6394 | |
6395 | d = s; | |
6396 | s = SKIPSPACE2(s,tmpwhite); | |
6397 | #else | |
09bef843 | 6398 | s = skipspace(s); |
5db06880 | 6399 | #endif |
09bef843 | 6400 | |
7e2040f0 | 6401 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
6402 | (*s == ':' && s[1] == ':')) |
6403 | { | |
5db06880 NC |
6404 | #ifdef PERL_MAD |
6405 | SV *nametoke; | |
6406 | #endif | |
6407 | ||
09bef843 SB |
6408 | PL_expect = XBLOCK; |
6409 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
6410 | /* remember buffer pos'n for later force_word */ |
6411 | tboffset = s - PL_oldbufptr; | |
09bef843 | 6412 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5db06880 NC |
6413 | #ifdef PERL_MAD |
6414 | if (PL_madskills) | |
6415 | nametoke = newSVpvn(s, d - s); | |
6416 | #endif | |
09bef843 SB |
6417 | if (strchr(tmpbuf, ':')) |
6418 | sv_setpv(PL_subname, tmpbuf); | |
6419 | else { | |
6420 | sv_setsv(PL_subname,PL_curstname); | |
396482e1 | 6421 | sv_catpvs(PL_subname,"::"); |
09bef843 SB |
6422 | sv_catpvn(PL_subname,tmpbuf,len); |
6423 | } | |
09bef843 | 6424 | have_name = TRUE; |
5db06880 NC |
6425 | |
6426 | #ifdef PERL_MAD | |
6427 | ||
6428 | start_force(0); | |
6429 | CURMAD('X', nametoke); | |
6430 | CURMAD('_', tmpwhite); | |
6431 | (void) force_word(PL_oldbufptr + tboffset, WORD, | |
6432 | FALSE, TRUE, TRUE); | |
6433 | ||
6434 | s = SKIPSPACE2(d,tmpwhite); | |
6435 | #else | |
6436 | s = skipspace(d); | |
6437 | #endif | |
09bef843 | 6438 | } |
463ee0b2 | 6439 | else { |
09bef843 SB |
6440 | if (key == KEY_my) |
6441 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
6442 | PL_expect = XTERMBLOCK; | |
6443 | attrful = XATTRTERM; | |
c69006e4 | 6444 | sv_setpvn(PL_subname,"?",1); |
09bef843 | 6445 | have_name = FALSE; |
463ee0b2 | 6446 | } |
4633a7c4 | 6447 | |
09bef843 SB |
6448 | if (key == KEY_format) { |
6449 | if (*s == '=') | |
6450 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5db06880 | 6451 | #ifdef PERL_MAD |
cd81e915 | 6452 | PL_thistoken = subtoken; |
5db06880 NC |
6453 | s = d; |
6454 | #else | |
09bef843 | 6455 | if (have_name) |
b1b65b59 JH |
6456 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6457 | FALSE, TRUE, TRUE); | |
5db06880 | 6458 | #endif |
09bef843 SB |
6459 | OPERATOR(FORMAT); |
6460 | } | |
79072805 | 6461 | |
09bef843 SB |
6462 | /* Look for a prototype */ |
6463 | if (*s == '(') { | |
6464 | char *p; | |
6465 | ||
5db06880 | 6466 | s = scan_str(s,!!PL_madskills,FALSE); |
37fd879b | 6467 | if (!s) |
09bef843 | 6468 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 6469 | /* strip spaces and check for bad characters */ |
09bef843 SB |
6470 | d = SvPVX(PL_lex_stuff); |
6471 | tmp = 0; | |
d731386a | 6472 | bad_proto = FALSE; |
09bef843 | 6473 | for (p = d; *p; ++p) { |
d37a9538 | 6474 | if (!isSPACE(*p)) { |
09bef843 | 6475 | d[tmp++] = *p; |
d37a9538 ST |
6476 | if (!strchr("$@%*;[]&\\", *p)) |
6477 | bad_proto = TRUE; | |
6478 | } | |
09bef843 SB |
6479 | } |
6480 | d[tmp] = '\0'; | |
420cdfc1 | 6481 | if (bad_proto && ckWARN(WARN_SYNTAX)) |
9014280d | 6482 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
35c1215d | 6483 | "Illegal character in prototype for %"SVf" : %s", |
95b63a38 | 6484 | (void*)PL_subname, d); |
b162af07 | 6485 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 6486 | have_proto = TRUE; |
68dc0745 | 6487 | |
5db06880 NC |
6488 | #ifdef PERL_MAD |
6489 | start_force(0); | |
cd81e915 | 6490 | CURMAD('q', PL_thisopen); |
5db06880 | 6491 | CURMAD('_', tmpwhite); |
cd81e915 NC |
6492 | CURMAD('=', PL_thisstuff); |
6493 | CURMAD('Q', PL_thisclose); | |
5db06880 NC |
6494 | NEXTVAL_NEXTTOKE.opval = |
6495 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
6496 | PL_lex_stuff = Nullsv; | |
6497 | force_next(THING); | |
6498 | ||
6499 | s = SKIPSPACE2(s,tmpwhite); | |
6500 | #else | |
09bef843 | 6501 | s = skipspace(s); |
5db06880 | 6502 | #endif |
4633a7c4 | 6503 | } |
09bef843 SB |
6504 | else |
6505 | have_proto = FALSE; | |
6506 | ||
6507 | if (*s == ':' && s[1] != ':') | |
6508 | PL_expect = attrful; | |
8e742a20 MHM |
6509 | else if (*s != '{' && key == KEY_sub) { |
6510 | if (!have_name) | |
6511 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
6512 | else if (*s != ';') | |
95b63a38 | 6513 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, (void*)PL_subname); |
8e742a20 | 6514 | } |
09bef843 | 6515 | |
5db06880 NC |
6516 | #ifdef PERL_MAD |
6517 | start_force(0); | |
6518 | if (tmpwhite) { | |
6519 | if (PL_madskills) | |
6520 | curmad('^', newSVpvn("",0)); | |
6521 | CURMAD('_', tmpwhite); | |
6522 | } | |
6523 | force_next(0); | |
6524 | ||
cd81e915 | 6525 | PL_thistoken = subtoken; |
5db06880 | 6526 | #else |
09bef843 | 6527 | if (have_proto) { |
9ded7720 | 6528 | NEXTVAL_NEXTTOKE.opval = |
b1b65b59 | 6529 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); |
a0714e2c | 6530 | PL_lex_stuff = NULL; |
09bef843 | 6531 | force_next(THING); |
68dc0745 | 6532 | } |
5db06880 | 6533 | #endif |
09bef843 | 6534 | if (!have_name) { |
c99da370 JH |
6535 | sv_setpv(PL_subname, |
6536 | PL_curstash ? "__ANON__" : "__ANON__::__ANON__"); | |
09bef843 | 6537 | TOKEN(ANONSUB); |
4633a7c4 | 6538 | } |
5db06880 | 6539 | #ifndef PERL_MAD |
b1b65b59 JH |
6540 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6541 | FALSE, TRUE, TRUE); | |
5db06880 | 6542 | #endif |
09bef843 SB |
6543 | if (key == KEY_my) |
6544 | TOKEN(MYSUB); | |
6545 | TOKEN(SUB); | |
4633a7c4 | 6546 | } |
79072805 LW |
6547 | |
6548 | case KEY_system: | |
6549 | set_csh(); | |
a0d0e21e | 6550 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
6551 | |
6552 | case KEY_symlink: | |
a0d0e21e | 6553 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
6554 | |
6555 | case KEY_syscall: | |
a0d0e21e | 6556 | LOP(OP_SYSCALL,XTERM); |
79072805 | 6557 | |
c07a80fd | 6558 | case KEY_sysopen: |
6559 | LOP(OP_SYSOPEN,XTERM); | |
6560 | ||
137443ea | 6561 | case KEY_sysseek: |
6562 | LOP(OP_SYSSEEK,XTERM); | |
6563 | ||
79072805 | 6564 | case KEY_sysread: |
a0d0e21e | 6565 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
6566 | |
6567 | case KEY_syswrite: | |
a0d0e21e | 6568 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
6569 | |
6570 | case KEY_tr: | |
6571 | s = scan_trans(s); | |
6572 | TERM(sublex_start()); | |
6573 | ||
6574 | case KEY_tell: | |
6575 | UNI(OP_TELL); | |
6576 | ||
6577 | case KEY_telldir: | |
6578 | UNI(OP_TELLDIR); | |
6579 | ||
463ee0b2 | 6580 | case KEY_tie: |
a0d0e21e | 6581 | LOP(OP_TIE,XTERM); |
463ee0b2 | 6582 | |
c07a80fd | 6583 | case KEY_tied: |
6584 | UNI(OP_TIED); | |
6585 | ||
79072805 LW |
6586 | case KEY_time: |
6587 | FUN0(OP_TIME); | |
6588 | ||
6589 | case KEY_times: | |
6590 | FUN0(OP_TMS); | |
6591 | ||
6592 | case KEY_truncate: | |
a0d0e21e | 6593 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
6594 | |
6595 | case KEY_uc: | |
6596 | UNI(OP_UC); | |
6597 | ||
6598 | case KEY_ucfirst: | |
6599 | UNI(OP_UCFIRST); | |
6600 | ||
463ee0b2 LW |
6601 | case KEY_untie: |
6602 | UNI(OP_UNTIE); | |
6603 | ||
79072805 | 6604 | case KEY_until: |
57843af0 | 6605 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6606 | OPERATOR(UNTIL); |
6607 | ||
6608 | case KEY_unless: | |
57843af0 | 6609 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6610 | OPERATOR(UNLESS); |
6611 | ||
6612 | case KEY_unlink: | |
a0d0e21e | 6613 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
6614 | |
6615 | case KEY_undef: | |
6f33ba73 | 6616 | UNIDOR(OP_UNDEF); |
79072805 LW |
6617 | |
6618 | case KEY_unpack: | |
a0d0e21e | 6619 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
6620 | |
6621 | case KEY_utime: | |
a0d0e21e | 6622 | LOP(OP_UTIME,XTERM); |
79072805 LW |
6623 | |
6624 | case KEY_umask: | |
6f33ba73 | 6625 | UNIDOR(OP_UMASK); |
79072805 LW |
6626 | |
6627 | case KEY_unshift: | |
a0d0e21e LW |
6628 | LOP(OP_UNSHIFT,XTERM); |
6629 | ||
6630 | case KEY_use: | |
468aa647 | 6631 | s = tokenize_use(1, s); |
a0d0e21e | 6632 | OPERATOR(USE); |
79072805 LW |
6633 | |
6634 | case KEY_values: | |
6635 | UNI(OP_VALUES); | |
6636 | ||
6637 | case KEY_vec: | |
a0d0e21e | 6638 | LOP(OP_VEC,XTERM); |
79072805 | 6639 | |
0d863452 RH |
6640 | case KEY_when: |
6641 | yylval.ival = CopLINE(PL_curcop); | |
6642 | OPERATOR(WHEN); | |
6643 | ||
79072805 | 6644 | case KEY_while: |
57843af0 | 6645 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6646 | OPERATOR(WHILE); |
6647 | ||
6648 | case KEY_warn: | |
3280af22 | 6649 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 6650 | LOP(OP_WARN,XTERM); |
79072805 LW |
6651 | |
6652 | case KEY_wait: | |
6653 | FUN0(OP_WAIT); | |
6654 | ||
6655 | case KEY_waitpid: | |
a0d0e21e | 6656 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
6657 | |
6658 | case KEY_wantarray: | |
6659 | FUN0(OP_WANTARRAY); | |
6660 | ||
6661 | case KEY_write: | |
9d116dd7 JH |
6662 | #ifdef EBCDIC |
6663 | { | |
df3728a2 JH |
6664 | char ctl_l[2]; |
6665 | ctl_l[0] = toCTRL('L'); | |
6666 | ctl_l[1] = '\0'; | |
fafc274c | 6667 | gv_fetchpvn_flags(ctl_l, 1, GV_ADD|GV_NOTQUAL, SVt_PV); |
9d116dd7 JH |
6668 | } |
6669 | #else | |
fafc274c NC |
6670 | /* Make sure $^L is defined */ |
6671 | gv_fetchpvs("\f", GV_ADD|GV_NOTQUAL, SVt_PV); | |
9d116dd7 | 6672 | #endif |
79072805 LW |
6673 | UNI(OP_ENTERWRITE); |
6674 | ||
6675 | case KEY_x: | |
3280af22 | 6676 | if (PL_expect == XOPERATOR) |
79072805 LW |
6677 | Mop(OP_REPEAT); |
6678 | check_uni(); | |
6679 | goto just_a_word; | |
6680 | ||
a0d0e21e LW |
6681 | case KEY_xor: |
6682 | yylval.ival = OP_XOR; | |
6683 | OPERATOR(OROP); | |
6684 | ||
79072805 LW |
6685 | case KEY_y: |
6686 | s = scan_trans(s); | |
6687 | TERM(sublex_start()); | |
6688 | } | |
49dc05e3 | 6689 | }} |
79072805 | 6690 | } |
bf4acbe4 GS |
6691 | #ifdef __SC__ |
6692 | #pragma segment Main | |
6693 | #endif | |
79072805 | 6694 | |
e930465f JH |
6695 | static int |
6696 | S_pending_ident(pTHX) | |
8eceec63 | 6697 | { |
97aff369 | 6698 | dVAR; |
8eceec63 | 6699 | register char *d; |
bbd11bfc | 6700 | PADOFFSET tmp = 0; |
8eceec63 SC |
6701 | /* pit holds the identifier we read and pending_ident is reset */ |
6702 | char pit = PL_pending_ident; | |
6703 | PL_pending_ident = 0; | |
6704 | ||
cd81e915 | 6705 | /* PL_realtokenstart = realtokenend = PL_bufptr - SvPVX(PL_linestr); */ |
8eceec63 | 6706 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 6707 | "### Pending identifier '%s'\n", PL_tokenbuf); }); |
8eceec63 SC |
6708 | |
6709 | /* if we're in a my(), we can't allow dynamics here. | |
6710 | $foo'bar has already been turned into $foo::bar, so | |
6711 | just check for colons. | |
6712 | ||
6713 | if it's a legal name, the OP is a PADANY. | |
6714 | */ | |
6715 | if (PL_in_my) { | |
6716 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
6717 | if (strchr(PL_tokenbuf,':')) | |
6718 | yyerror(Perl_form(aTHX_ "No package name allowed for " | |
6719 | "variable %s in \"our\"", | |
6720 | PL_tokenbuf)); | |
dd2155a4 | 6721 | tmp = allocmy(PL_tokenbuf); |
8eceec63 SC |
6722 | } |
6723 | else { | |
6724 | if (strchr(PL_tokenbuf,':')) | |
952306ac RGS |
6725 | yyerror(Perl_form(aTHX_ PL_no_myglob, |
6726 | PL_in_my == KEY_my ? "my" : "state", PL_tokenbuf)); | |
8eceec63 SC |
6727 | |
6728 | yylval.opval = newOP(OP_PADANY, 0); | |
dd2155a4 | 6729 | yylval.opval->op_targ = allocmy(PL_tokenbuf); |
8eceec63 SC |
6730 | return PRIVATEREF; |
6731 | } | |
6732 | } | |
6733 | ||
6734 | /* | |
6735 | build the ops for accesses to a my() variable. | |
6736 | ||
6737 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
6738 | then used in a comparison. This catches most, but not | |
6739 | all cases. For instance, it catches | |
6740 | sort { my($a); $a <=> $b } | |
6741 | but not | |
6742 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
6743 | (although why you'd do that is anyone's guess). | |
6744 | */ | |
6745 | ||
6746 | if (!strchr(PL_tokenbuf,':')) { | |
8716503d DM |
6747 | if (!PL_in_my) |
6748 | tmp = pad_findmy(PL_tokenbuf); | |
6749 | if (tmp != NOT_IN_PAD) { | |
8eceec63 | 6750 | /* might be an "our" variable" */ |
00b1698f | 6751 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
8eceec63 | 6752 | /* build ops for a bareword */ |
b64e5050 AL |
6753 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
6754 | HEK * const stashname = HvNAME_HEK(stash); | |
6755 | SV * const sym = newSVhek(stashname); | |
396482e1 | 6756 | sv_catpvs(sym, "::"); |
8eceec63 SC |
6757 | sv_catpv(sym, PL_tokenbuf+1); |
6758 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); | |
6759 | yylval.opval->op_private = OPpCONST_ENTERED; | |
7a5fd60d | 6760 | gv_fetchsv(sym, |
8eceec63 SC |
6761 | (PL_in_eval |
6762 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 6763 | : GV_ADDMULTI |
8eceec63 SC |
6764 | ), |
6765 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
6766 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
6767 | : SVt_PVHV)); | |
6768 | return WORD; | |
6769 | } | |
6770 | ||
6771 | /* if it's a sort block and they're naming $a or $b */ | |
6772 | if (PL_last_lop_op == OP_SORT && | |
6773 | PL_tokenbuf[0] == '$' && | |
6774 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
6775 | && !PL_tokenbuf[2]) | |
6776 | { | |
6777 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
6778 | d < PL_bufend && *d != '\n'; | |
6779 | d++) | |
6780 | { | |
6781 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
6782 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
6783 | PL_tokenbuf); | |
6784 | } | |
6785 | } | |
6786 | } | |
6787 | ||
6788 | yylval.opval = newOP(OP_PADANY, 0); | |
6789 | yylval.opval->op_targ = tmp; | |
6790 | return PRIVATEREF; | |
6791 | } | |
6792 | } | |
6793 | ||
6794 | /* | |
6795 | Whine if they've said @foo in a doublequoted string, | |
6796 | and @foo isn't a variable we can find in the symbol | |
6797 | table. | |
6798 | */ | |
6799 | if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
f776e3cd | 6800 | GV *gv = gv_fetchpv(PL_tokenbuf+1, 0, SVt_PVAV); |
8eceec63 SC |
6801 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
6802 | && ckWARN(WARN_AMBIGUOUS)) | |
6803 | { | |
6804 | /* Downgraded from fatal to warning 20000522 mjd */ | |
9014280d | 6805 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
8eceec63 SC |
6806 | "Possible unintended interpolation of %s in string", |
6807 | PL_tokenbuf); | |
6808 | } | |
6809 | } | |
6810 | ||
6811 | /* build ops for a bareword */ | |
6812 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf+1, 0)); | |
6813 | yylval.opval->op_private = OPpCONST_ENTERED; | |
adc51b97 RGS |
6814 | gv_fetchpv( |
6815 | PL_tokenbuf+1, | |
d6069db2 RGS |
6816 | /* If the identifier refers to a stash, don't autovivify it. |
6817 | * Change 24660 had the side effect of causing symbol table | |
6818 | * hashes to always be defined, even if they were freshly | |
6819 | * created and the only reference in the entire program was | |
6820 | * the single statement with the defined %foo::bar:: test. | |
6821 | * It appears that all code in the wild doing this actually | |
6822 | * wants to know whether sub-packages have been loaded, so | |
6823 | * by avoiding auto-vivifying symbol tables, we ensure that | |
6824 | * defined %foo::bar:: continues to be false, and the existing | |
6825 | * tests still give the expected answers, even though what | |
6826 | * they're actually testing has now changed subtly. | |
6827 | */ | |
6828 | (*PL_tokenbuf == '%' && *(d = PL_tokenbuf + strlen(PL_tokenbuf) - 1) == ':' && d[-1] == ':' | |
6829 | ? 0 | |
6830 | : PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD), | |
adc51b97 RGS |
6831 | ((PL_tokenbuf[0] == '$') ? SVt_PV |
6832 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
6833 | : SVt_PVHV)); | |
8eceec63 SC |
6834 | return WORD; |
6835 | } | |
6836 | ||
4c3bbe0f MHM |
6837 | /* |
6838 | * The following code was generated by perl_keyword.pl. | |
6839 | */ | |
e2e1dd5a | 6840 | |
79072805 | 6841 | I32 |
672994ce | 6842 | Perl_keyword (pTHX_ const char *name, I32 len) |
4c3bbe0f | 6843 | { |
952306ac | 6844 | dVAR; |
4c3bbe0f MHM |
6845 | switch (len) |
6846 | { | |
6847 | case 1: /* 5 tokens of length 1 */ | |
6848 | switch (name[0]) | |
e2e1dd5a | 6849 | { |
4c3bbe0f MHM |
6850 | case 'm': |
6851 | { /* m */ | |
6852 | return KEY_m; | |
6853 | } | |
6854 | ||
4c3bbe0f MHM |
6855 | case 'q': |
6856 | { /* q */ | |
6857 | return KEY_q; | |
6858 | } | |
6859 | ||
4c3bbe0f MHM |
6860 | case 's': |
6861 | { /* s */ | |
6862 | return KEY_s; | |
6863 | } | |
6864 | ||
4c3bbe0f MHM |
6865 | case 'x': |
6866 | { /* x */ | |
6867 | return -KEY_x; | |
6868 | } | |
6869 | ||
4c3bbe0f MHM |
6870 | case 'y': |
6871 | { /* y */ | |
6872 | return KEY_y; | |
6873 | } | |
6874 | ||
4c3bbe0f MHM |
6875 | default: |
6876 | goto unknown; | |
e2e1dd5a | 6877 | } |
4c3bbe0f MHM |
6878 | |
6879 | case 2: /* 18 tokens of length 2 */ | |
6880 | switch (name[0]) | |
e2e1dd5a | 6881 | { |
4c3bbe0f MHM |
6882 | case 'd': |
6883 | if (name[1] == 'o') | |
6884 | { /* do */ | |
6885 | return KEY_do; | |
6886 | } | |
6887 | ||
6888 | goto unknown; | |
6889 | ||
6890 | case 'e': | |
6891 | if (name[1] == 'q') | |
6892 | { /* eq */ | |
6893 | return -KEY_eq; | |
6894 | } | |
6895 | ||
6896 | goto unknown; | |
6897 | ||
6898 | case 'g': | |
6899 | switch (name[1]) | |
6900 | { | |
6901 | case 'e': | |
6902 | { /* ge */ | |
6903 | return -KEY_ge; | |
6904 | } | |
6905 | ||
4c3bbe0f MHM |
6906 | case 't': |
6907 | { /* gt */ | |
6908 | return -KEY_gt; | |
6909 | } | |
6910 | ||
4c3bbe0f MHM |
6911 | default: |
6912 | goto unknown; | |
6913 | } | |
6914 | ||
6915 | case 'i': | |
6916 | if (name[1] == 'f') | |
6917 | { /* if */ | |
6918 | return KEY_if; | |
6919 | } | |
6920 | ||
6921 | goto unknown; | |
6922 | ||
6923 | case 'l': | |
6924 | switch (name[1]) | |
6925 | { | |
6926 | case 'c': | |
6927 | { /* lc */ | |
6928 | return -KEY_lc; | |
6929 | } | |
6930 | ||
4c3bbe0f MHM |
6931 | case 'e': |
6932 | { /* le */ | |
6933 | return -KEY_le; | |
6934 | } | |
6935 | ||
4c3bbe0f MHM |
6936 | case 't': |
6937 | { /* lt */ | |
6938 | return -KEY_lt; | |
6939 | } | |
6940 | ||
4c3bbe0f MHM |
6941 | default: |
6942 | goto unknown; | |
6943 | } | |
6944 | ||
6945 | case 'm': | |
6946 | if (name[1] == 'y') | |
6947 | { /* my */ | |
6948 | return KEY_my; | |
6949 | } | |
6950 | ||
6951 | goto unknown; | |
6952 | ||
6953 | case 'n': | |
6954 | switch (name[1]) | |
6955 | { | |
6956 | case 'e': | |
6957 | { /* ne */ | |
6958 | return -KEY_ne; | |
6959 | } | |
6960 | ||
4c3bbe0f MHM |
6961 | case 'o': |
6962 | { /* no */ | |
6963 | return KEY_no; | |
6964 | } | |
6965 | ||
4c3bbe0f MHM |
6966 | default: |
6967 | goto unknown; | |
6968 | } | |
6969 | ||
6970 | case 'o': | |
6971 | if (name[1] == 'r') | |
6972 | { /* or */ | |
6973 | return -KEY_or; | |
6974 | } | |
6975 | ||
6976 | goto unknown; | |
6977 | ||
6978 | case 'q': | |
6979 | switch (name[1]) | |
6980 | { | |
6981 | case 'q': | |
6982 | { /* qq */ | |
6983 | return KEY_qq; | |
6984 | } | |
6985 | ||
4c3bbe0f MHM |
6986 | case 'r': |
6987 | { /* qr */ | |
6988 | return KEY_qr; | |
6989 | } | |
6990 | ||
4c3bbe0f MHM |
6991 | case 'w': |
6992 | { /* qw */ | |
6993 | return KEY_qw; | |
6994 | } | |
6995 | ||
4c3bbe0f MHM |
6996 | case 'x': |
6997 | { /* qx */ | |
6998 | return KEY_qx; | |
6999 | } | |
7000 | ||
4c3bbe0f MHM |
7001 | default: |
7002 | goto unknown; | |
7003 | } | |
7004 | ||
7005 | case 't': | |
7006 | if (name[1] == 'r') | |
7007 | { /* tr */ | |
7008 | return KEY_tr; | |
7009 | } | |
7010 | ||
7011 | goto unknown; | |
7012 | ||
7013 | case 'u': | |
7014 | if (name[1] == 'c') | |
7015 | { /* uc */ | |
7016 | return -KEY_uc; | |
7017 | } | |
7018 | ||
7019 | goto unknown; | |
7020 | ||
7021 | default: | |
7022 | goto unknown; | |
e2e1dd5a | 7023 | } |
4c3bbe0f | 7024 | |
0d863452 | 7025 | case 3: /* 29 tokens of length 3 */ |
4c3bbe0f | 7026 | switch (name[0]) |
e2e1dd5a | 7027 | { |
4c3bbe0f MHM |
7028 | case 'E': |
7029 | if (name[1] == 'N' && | |
7030 | name[2] == 'D') | |
7031 | { /* END */ | |
7032 | return KEY_END; | |
7033 | } | |
7034 | ||
7035 | goto unknown; | |
7036 | ||
7037 | case 'a': | |
7038 | switch (name[1]) | |
7039 | { | |
7040 | case 'b': | |
7041 | if (name[2] == 's') | |
7042 | { /* abs */ | |
7043 | return -KEY_abs; | |
7044 | } | |
7045 | ||
7046 | goto unknown; | |
7047 | ||
7048 | case 'n': | |
7049 | if (name[2] == 'd') | |
7050 | { /* and */ | |
7051 | return -KEY_and; | |
7052 | } | |
7053 | ||
7054 | goto unknown; | |
7055 | ||
7056 | default: | |
7057 | goto unknown; | |
7058 | } | |
7059 | ||
7060 | case 'c': | |
7061 | switch (name[1]) | |
7062 | { | |
7063 | case 'h': | |
7064 | if (name[2] == 'r') | |
7065 | { /* chr */ | |
7066 | return -KEY_chr; | |
7067 | } | |
7068 | ||
7069 | goto unknown; | |
7070 | ||
7071 | case 'm': | |
7072 | if (name[2] == 'p') | |
7073 | { /* cmp */ | |
7074 | return -KEY_cmp; | |
7075 | } | |
7076 | ||
7077 | goto unknown; | |
7078 | ||
7079 | case 'o': | |
7080 | if (name[2] == 's') | |
7081 | { /* cos */ | |
7082 | return -KEY_cos; | |
7083 | } | |
7084 | ||
7085 | goto unknown; | |
7086 | ||
7087 | default: | |
7088 | goto unknown; | |
7089 | } | |
7090 | ||
7091 | case 'd': | |
7092 | if (name[1] == 'i' && | |
7093 | name[2] == 'e') | |
7094 | { /* die */ | |
7095 | return -KEY_die; | |
7096 | } | |
7097 | ||
7098 | goto unknown; | |
7099 | ||
7100 | case 'e': | |
7101 | switch (name[1]) | |
7102 | { | |
7103 | case 'o': | |
7104 | if (name[2] == 'f') | |
7105 | { /* eof */ | |
7106 | return -KEY_eof; | |
7107 | } | |
7108 | ||
7109 | goto unknown; | |
7110 | ||
7111 | case 'r': | |
7112 | if (name[2] == 'r') | |
7113 | { /* err */ | |
ef89dcc3 | 7114 | return (FEATURE_IS_ENABLED("err") ? -KEY_err : 0); |
4c3bbe0f MHM |
7115 | } |
7116 | ||
7117 | goto unknown; | |
7118 | ||
7119 | case 'x': | |
7120 | if (name[2] == 'p') | |
7121 | { /* exp */ | |
7122 | return -KEY_exp; | |
7123 | } | |
7124 | ||
7125 | goto unknown; | |
7126 | ||
7127 | default: | |
7128 | goto unknown; | |
7129 | } | |
7130 | ||
7131 | case 'f': | |
7132 | if (name[1] == 'o' && | |
7133 | name[2] == 'r') | |
7134 | { /* for */ | |
7135 | return KEY_for; | |
7136 | } | |
7137 | ||
7138 | goto unknown; | |
7139 | ||
7140 | case 'h': | |
7141 | if (name[1] == 'e' && | |
7142 | name[2] == 'x') | |
7143 | { /* hex */ | |
7144 | return -KEY_hex; | |
7145 | } | |
7146 | ||
7147 | goto unknown; | |
7148 | ||
7149 | case 'i': | |
7150 | if (name[1] == 'n' && | |
7151 | name[2] == 't') | |
7152 | { /* int */ | |
7153 | return -KEY_int; | |
7154 | } | |
7155 | ||
7156 | goto unknown; | |
7157 | ||
7158 | case 'l': | |
7159 | if (name[1] == 'o' && | |
7160 | name[2] == 'g') | |
7161 | { /* log */ | |
7162 | return -KEY_log; | |
7163 | } | |
7164 | ||
7165 | goto unknown; | |
7166 | ||
7167 | case 'm': | |
7168 | if (name[1] == 'a' && | |
7169 | name[2] == 'p') | |
7170 | { /* map */ | |
7171 | return KEY_map; | |
7172 | } | |
7173 | ||
7174 | goto unknown; | |
7175 | ||
7176 | case 'n': | |
7177 | if (name[1] == 'o' && | |
7178 | name[2] == 't') | |
7179 | { /* not */ | |
7180 | return -KEY_not; | |
7181 | } | |
7182 | ||
7183 | goto unknown; | |
7184 | ||
7185 | case 'o': | |
7186 | switch (name[1]) | |
7187 | { | |
7188 | case 'c': | |
7189 | if (name[2] == 't') | |
7190 | { /* oct */ | |
7191 | return -KEY_oct; | |
7192 | } | |
7193 | ||
7194 | goto unknown; | |
7195 | ||
7196 | case 'r': | |
7197 | if (name[2] == 'd') | |
7198 | { /* ord */ | |
7199 | return -KEY_ord; | |
7200 | } | |
7201 | ||
7202 | goto unknown; | |
7203 | ||
7204 | case 'u': | |
7205 | if (name[2] == 'r') | |
7206 | { /* our */ | |
7207 | return KEY_our; | |
7208 | } | |
7209 | ||
7210 | goto unknown; | |
7211 | ||
7212 | default: | |
7213 | goto unknown; | |
7214 | } | |
7215 | ||
7216 | case 'p': | |
7217 | if (name[1] == 'o') | |
7218 | { | |
7219 | switch (name[2]) | |
7220 | { | |
7221 | case 'p': | |
7222 | { /* pop */ | |
7223 | return -KEY_pop; | |
7224 | } | |
7225 | ||
4c3bbe0f MHM |
7226 | case 's': |
7227 | { /* pos */ | |
7228 | return KEY_pos; | |
7229 | } | |
7230 | ||
4c3bbe0f MHM |
7231 | default: |
7232 | goto unknown; | |
7233 | } | |
7234 | } | |
7235 | ||
7236 | goto unknown; | |
7237 | ||
7238 | case 'r': | |
7239 | if (name[1] == 'e' && | |
7240 | name[2] == 'f') | |
7241 | { /* ref */ | |
7242 | return -KEY_ref; | |
7243 | } | |
7244 | ||
7245 | goto unknown; | |
7246 | ||
7247 | case 's': | |
7248 | switch (name[1]) | |
7249 | { | |
0d863452 RH |
7250 | case 'a': |
7251 | if (name[2] == 'y') | |
7252 | { /* say */ | |
ef89dcc3 | 7253 | return (FEATURE_IS_ENABLED("say") ? -KEY_say : 0); |
0d863452 RH |
7254 | } |
7255 | ||
7256 | goto unknown; | |
7257 | ||
4c3bbe0f MHM |
7258 | case 'i': |
7259 | if (name[2] == 'n') | |
7260 | { /* sin */ | |
7261 | return -KEY_sin; | |
7262 | } | |
7263 | ||
7264 | goto unknown; | |
7265 | ||
7266 | case 'u': | |
7267 | if (name[2] == 'b') | |
7268 | { /* sub */ | |
7269 | return KEY_sub; | |
7270 | } | |
7271 | ||
7272 | goto unknown; | |
7273 | ||
7274 | default: | |
7275 | goto unknown; | |
7276 | } | |
7277 | ||
7278 | case 't': | |
7279 | if (name[1] == 'i' && | |
7280 | name[2] == 'e') | |
7281 | { /* tie */ | |
7282 | return KEY_tie; | |
7283 | } | |
7284 | ||
7285 | goto unknown; | |
7286 | ||
7287 | case 'u': | |
7288 | if (name[1] == 's' && | |
7289 | name[2] == 'e') | |
7290 | { /* use */ | |
7291 | return KEY_use; | |
7292 | } | |
7293 | ||
7294 | goto unknown; | |
7295 | ||
7296 | case 'v': | |
7297 | if (name[1] == 'e' && | |
7298 | name[2] == 'c') | |
7299 | { /* vec */ | |
7300 | return -KEY_vec; | |
7301 | } | |
7302 | ||
7303 | goto unknown; | |
7304 | ||
7305 | case 'x': | |
7306 | if (name[1] == 'o' && | |
7307 | name[2] == 'r') | |
7308 | { /* xor */ | |
7309 | return -KEY_xor; | |
7310 | } | |
7311 | ||
7312 | goto unknown; | |
7313 | ||
7314 | default: | |
7315 | goto unknown; | |
e2e1dd5a | 7316 | } |
4c3bbe0f | 7317 | |
0d863452 | 7318 | case 4: /* 41 tokens of length 4 */ |
4c3bbe0f | 7319 | switch (name[0]) |
e2e1dd5a | 7320 | { |
4c3bbe0f MHM |
7321 | case 'C': |
7322 | if (name[1] == 'O' && | |
7323 | name[2] == 'R' && | |
7324 | name[3] == 'E') | |
7325 | { /* CORE */ | |
7326 | return -KEY_CORE; | |
7327 | } | |
7328 | ||
7329 | goto unknown; | |
7330 | ||
7331 | case 'I': | |
7332 | if (name[1] == 'N' && | |
7333 | name[2] == 'I' && | |
7334 | name[3] == 'T') | |
7335 | { /* INIT */ | |
7336 | return KEY_INIT; | |
7337 | } | |
7338 | ||
7339 | goto unknown; | |
7340 | ||
7341 | case 'b': | |
7342 | if (name[1] == 'i' && | |
7343 | name[2] == 'n' && | |
7344 | name[3] == 'd') | |
7345 | { /* bind */ | |
7346 | return -KEY_bind; | |
7347 | } | |
7348 | ||
7349 | goto unknown; | |
7350 | ||
7351 | case 'c': | |
7352 | if (name[1] == 'h' && | |
7353 | name[2] == 'o' && | |
7354 | name[3] == 'p') | |
7355 | { /* chop */ | |
7356 | return -KEY_chop; | |
7357 | } | |
7358 | ||
7359 | goto unknown; | |
7360 | ||
7361 | case 'd': | |
7362 | if (name[1] == 'u' && | |
7363 | name[2] == 'm' && | |
7364 | name[3] == 'p') | |
7365 | { /* dump */ | |
7366 | return -KEY_dump; | |
7367 | } | |
7368 | ||
7369 | goto unknown; | |
7370 | ||
7371 | case 'e': | |
7372 | switch (name[1]) | |
7373 | { | |
7374 | case 'a': | |
7375 | if (name[2] == 'c' && | |
7376 | name[3] == 'h') | |
7377 | { /* each */ | |
7378 | return -KEY_each; | |
7379 | } | |
7380 | ||
7381 | goto unknown; | |
7382 | ||
7383 | case 'l': | |
7384 | if (name[2] == 's' && | |
7385 | name[3] == 'e') | |
7386 | { /* else */ | |
7387 | return KEY_else; | |
7388 | } | |
7389 | ||
7390 | goto unknown; | |
7391 | ||
7392 | case 'v': | |
7393 | if (name[2] == 'a' && | |
7394 | name[3] == 'l') | |
7395 | { /* eval */ | |
7396 | return KEY_eval; | |
7397 | } | |
7398 | ||
7399 | goto unknown; | |
7400 | ||
7401 | case 'x': | |
7402 | switch (name[2]) | |
7403 | { | |
7404 | case 'e': | |
7405 | if (name[3] == 'c') | |
7406 | { /* exec */ | |
7407 | return -KEY_exec; | |
7408 | } | |
7409 | ||
7410 | goto unknown; | |
7411 | ||
7412 | case 'i': | |
7413 | if (name[3] == 't') | |
7414 | { /* exit */ | |
7415 | return -KEY_exit; | |
7416 | } | |
7417 | ||
7418 | goto unknown; | |
7419 | ||
7420 | default: | |
7421 | goto unknown; | |
7422 | } | |
7423 | ||
7424 | default: | |
7425 | goto unknown; | |
7426 | } | |
7427 | ||
7428 | case 'f': | |
7429 | if (name[1] == 'o' && | |
7430 | name[2] == 'r' && | |
7431 | name[3] == 'k') | |
7432 | { /* fork */ | |
7433 | return -KEY_fork; | |
7434 | } | |
7435 | ||
7436 | goto unknown; | |
7437 | ||
7438 | case 'g': | |
7439 | switch (name[1]) | |
7440 | { | |
7441 | case 'e': | |
7442 | if (name[2] == 't' && | |
7443 | name[3] == 'c') | |
7444 | { /* getc */ | |
7445 | return -KEY_getc; | |
7446 | } | |
7447 | ||
7448 | goto unknown; | |
7449 | ||
7450 | case 'l': | |
7451 | if (name[2] == 'o' && | |
7452 | name[3] == 'b') | |
7453 | { /* glob */ | |
7454 | return KEY_glob; | |
7455 | } | |
7456 | ||
7457 | goto unknown; | |
7458 | ||
7459 | case 'o': | |
7460 | if (name[2] == 't' && | |
7461 | name[3] == 'o') | |
7462 | { /* goto */ | |
7463 | return KEY_goto; | |
7464 | } | |
7465 | ||
7466 | goto unknown; | |
7467 | ||
7468 | case 'r': | |
7469 | if (name[2] == 'e' && | |
7470 | name[3] == 'p') | |
7471 | { /* grep */ | |
7472 | return KEY_grep; | |
7473 | } | |
7474 | ||
7475 | goto unknown; | |
7476 | ||
7477 | default: | |
7478 | goto unknown; | |
7479 | } | |
7480 | ||
7481 | case 'j': | |
7482 | if (name[1] == 'o' && | |
7483 | name[2] == 'i' && | |
7484 | name[3] == 'n') | |
7485 | { /* join */ | |
7486 | return -KEY_join; | |
7487 | } | |
7488 | ||
7489 | goto unknown; | |
7490 | ||
7491 | case 'k': | |
7492 | switch (name[1]) | |
7493 | { | |
7494 | case 'e': | |
7495 | if (name[2] == 'y' && | |
7496 | name[3] == 's') | |
7497 | { /* keys */ | |
7498 | return -KEY_keys; | |
7499 | } | |
7500 | ||
7501 | goto unknown; | |
7502 | ||
7503 | case 'i': | |
7504 | if (name[2] == 'l' && | |
7505 | name[3] == 'l') | |
7506 | { /* kill */ | |
7507 | return -KEY_kill; | |
7508 | } | |
7509 | ||
7510 | goto unknown; | |
7511 | ||
7512 | default: | |
7513 | goto unknown; | |
7514 | } | |
7515 | ||
7516 | case 'l': | |
7517 | switch (name[1]) | |
7518 | { | |
7519 | case 'a': | |
7520 | if (name[2] == 's' && | |
7521 | name[3] == 't') | |
7522 | { /* last */ | |
7523 | return KEY_last; | |
7524 | } | |
7525 | ||
7526 | goto unknown; | |
7527 | ||
7528 | case 'i': | |
7529 | if (name[2] == 'n' && | |
7530 | name[3] == 'k') | |
7531 | { /* link */ | |
7532 | return -KEY_link; | |
7533 | } | |
7534 | ||
7535 | goto unknown; | |
7536 | ||
7537 | case 'o': | |
7538 | if (name[2] == 'c' && | |
7539 | name[3] == 'k') | |
7540 | { /* lock */ | |
7541 | return -KEY_lock; | |
7542 | } | |
7543 | ||
7544 | goto unknown; | |
7545 | ||
7546 | default: | |
7547 | goto unknown; | |
7548 | } | |
7549 | ||
7550 | case 'n': | |
7551 | if (name[1] == 'e' && | |
7552 | name[2] == 'x' && | |
7553 | name[3] == 't') | |
7554 | { /* next */ | |
7555 | return KEY_next; | |
7556 | } | |
7557 | ||
7558 | goto unknown; | |
7559 | ||
7560 | case 'o': | |
7561 | if (name[1] == 'p' && | |
7562 | name[2] == 'e' && | |
7563 | name[3] == 'n') | |
7564 | { /* open */ | |
7565 | return -KEY_open; | |
7566 | } | |
7567 | ||
7568 | goto unknown; | |
7569 | ||
7570 | case 'p': | |
7571 | switch (name[1]) | |
7572 | { | |
7573 | case 'a': | |
7574 | if (name[2] == 'c' && | |
7575 | name[3] == 'k') | |
7576 | { /* pack */ | |
7577 | return -KEY_pack; | |
7578 | } | |
7579 | ||
7580 | goto unknown; | |
7581 | ||
7582 | case 'i': | |
7583 | if (name[2] == 'p' && | |
7584 | name[3] == 'e') | |
7585 | { /* pipe */ | |
7586 | return -KEY_pipe; | |
7587 | } | |
7588 | ||
7589 | goto unknown; | |
7590 | ||
7591 | case 'u': | |
7592 | if (name[2] == 's' && | |
7593 | name[3] == 'h') | |
7594 | { /* push */ | |
7595 | return -KEY_push; | |
7596 | } | |
7597 | ||
7598 | goto unknown; | |
7599 | ||
7600 | default: | |
7601 | goto unknown; | |
7602 | } | |
7603 | ||
7604 | case 'r': | |
7605 | switch (name[1]) | |
7606 | { | |
7607 | case 'a': | |
7608 | if (name[2] == 'n' && | |
7609 | name[3] == 'd') | |
7610 | { /* rand */ | |
7611 | return -KEY_rand; | |
7612 | } | |
7613 | ||
7614 | goto unknown; | |
7615 | ||
7616 | case 'e': | |
7617 | switch (name[2]) | |
7618 | { | |
7619 | case 'a': | |
7620 | if (name[3] == 'd') | |
7621 | { /* read */ | |
7622 | return -KEY_read; | |
7623 | } | |
7624 | ||
7625 | goto unknown; | |
7626 | ||
7627 | case 'c': | |
7628 | if (name[3] == 'v') | |
7629 | { /* recv */ | |
7630 | return -KEY_recv; | |
7631 | } | |
7632 | ||
7633 | goto unknown; | |
7634 | ||
7635 | case 'd': | |
7636 | if (name[3] == 'o') | |
7637 | { /* redo */ | |
7638 | return KEY_redo; | |
7639 | } | |
7640 | ||
7641 | goto unknown; | |
7642 | ||
7643 | default: | |
7644 | goto unknown; | |
7645 | } | |
7646 | ||
7647 | default: | |
7648 | goto unknown; | |
7649 | } | |
7650 | ||
7651 | case 's': | |
7652 | switch (name[1]) | |
7653 | { | |
7654 | case 'e': | |
7655 | switch (name[2]) | |
7656 | { | |
7657 | case 'e': | |
7658 | if (name[3] == 'k') | |
7659 | { /* seek */ | |
7660 | return -KEY_seek; | |
7661 | } | |
7662 | ||
7663 | goto unknown; | |
7664 | ||
7665 | case 'n': | |
7666 | if (name[3] == 'd') | |
7667 | { /* send */ | |
7668 | return -KEY_send; | |
7669 | } | |
7670 | ||
7671 | goto unknown; | |
7672 | ||
7673 | default: | |
7674 | goto unknown; | |
7675 | } | |
7676 | ||
7677 | case 'o': | |
7678 | if (name[2] == 'r' && | |
7679 | name[3] == 't') | |
7680 | { /* sort */ | |
7681 | return KEY_sort; | |
7682 | } | |
7683 | ||
7684 | goto unknown; | |
7685 | ||
7686 | case 'q': | |
7687 | if (name[2] == 'r' && | |
7688 | name[3] == 't') | |
7689 | { /* sqrt */ | |
7690 | return -KEY_sqrt; | |
7691 | } | |
7692 | ||
7693 | goto unknown; | |
7694 | ||
7695 | case 't': | |
7696 | if (name[2] == 'a' && | |
7697 | name[3] == 't') | |
7698 | { /* stat */ | |
7699 | return -KEY_stat; | |
7700 | } | |
7701 | ||
7702 | goto unknown; | |
7703 | ||
7704 | default: | |
7705 | goto unknown; | |
7706 | } | |
7707 | ||
7708 | case 't': | |
7709 | switch (name[1]) | |
7710 | { | |
7711 | case 'e': | |
7712 | if (name[2] == 'l' && | |
7713 | name[3] == 'l') | |
7714 | { /* tell */ | |
7715 | return -KEY_tell; | |
7716 | } | |
7717 | ||
7718 | goto unknown; | |
7719 | ||
7720 | case 'i': | |
7721 | switch (name[2]) | |
7722 | { | |
7723 | case 'e': | |
7724 | if (name[3] == 'd') | |
7725 | { /* tied */ | |
7726 | return KEY_tied; | |
7727 | } | |
7728 | ||
7729 | goto unknown; | |
7730 | ||
7731 | case 'm': | |
7732 | if (name[3] == 'e') | |
7733 | { /* time */ | |
7734 | return -KEY_time; | |
7735 | } | |
7736 | ||
7737 | goto unknown; | |
7738 | ||
7739 | default: | |
7740 | goto unknown; | |
7741 | } | |
7742 | ||
7743 | default: | |
7744 | goto unknown; | |
7745 | } | |
7746 | ||
7747 | case 'w': | |
0d863452 | 7748 | switch (name[1]) |
4c3bbe0f | 7749 | { |
0d863452 | 7750 | case 'a': |
952306ac RGS |
7751 | switch (name[2]) |
7752 | { | |
7753 | case 'i': | |
7754 | if (name[3] == 't') | |
7755 | { /* wait */ | |
7756 | return -KEY_wait; | |
7757 | } | |
4c3bbe0f | 7758 | |
952306ac | 7759 | goto unknown; |
4c3bbe0f | 7760 | |
952306ac RGS |
7761 | case 'r': |
7762 | if (name[3] == 'n') | |
7763 | { /* warn */ | |
7764 | return -KEY_warn; | |
7765 | } | |
4c3bbe0f | 7766 | |
952306ac | 7767 | goto unknown; |
4c3bbe0f | 7768 | |
952306ac RGS |
7769 | default: |
7770 | goto unknown; | |
7771 | } | |
0d863452 RH |
7772 | |
7773 | case 'h': | |
7774 | if (name[2] == 'e' && | |
7775 | name[3] == 'n') | |
7776 | { /* when */ | |
ef89dcc3 | 7777 | return (FEATURE_IS_ENABLED("switch") ? KEY_when : 0); |
952306ac | 7778 | } |
4c3bbe0f | 7779 | |
952306ac | 7780 | goto unknown; |
4c3bbe0f | 7781 | |
952306ac RGS |
7782 | default: |
7783 | goto unknown; | |
7784 | } | |
4c3bbe0f | 7785 | |
0d863452 RH |
7786 | default: |
7787 | goto unknown; | |
7788 | } | |
7789 | ||
952306ac | 7790 | case 5: /* 39 tokens of length 5 */ |
4c3bbe0f | 7791 | switch (name[0]) |
e2e1dd5a | 7792 | { |
4c3bbe0f MHM |
7793 | case 'B': |
7794 | if (name[1] == 'E' && | |
7795 | name[2] == 'G' && | |
7796 | name[3] == 'I' && | |
7797 | name[4] == 'N') | |
7798 | { /* BEGIN */ | |
7799 | return KEY_BEGIN; | |
7800 | } | |
7801 | ||
7802 | goto unknown; | |
7803 | ||
7804 | case 'C': | |
7805 | if (name[1] == 'H' && | |
7806 | name[2] == 'E' && | |
7807 | name[3] == 'C' && | |
7808 | name[4] == 'K') | |
7809 | { /* CHECK */ | |
7810 | return KEY_CHECK; | |
7811 | } | |
7812 | ||
7813 | goto unknown; | |
7814 | ||
7815 | case 'a': | |
7816 | switch (name[1]) | |
7817 | { | |
7818 | case 'l': | |
7819 | if (name[2] == 'a' && | |
7820 | name[3] == 'r' && | |
7821 | name[4] == 'm') | |
7822 | { /* alarm */ | |
7823 | return -KEY_alarm; | |
7824 | } | |
7825 | ||
7826 | goto unknown; | |
7827 | ||
7828 | case 't': | |
7829 | if (name[2] == 'a' && | |
7830 | name[3] == 'n' && | |
7831 | name[4] == '2') | |
7832 | { /* atan2 */ | |
7833 | return -KEY_atan2; | |
7834 | } | |
7835 | ||
7836 | goto unknown; | |
7837 | ||
7838 | default: | |
7839 | goto unknown; | |
7840 | } | |
7841 | ||
7842 | case 'b': | |
0d863452 RH |
7843 | switch (name[1]) |
7844 | { | |
7845 | case 'l': | |
7846 | if (name[2] == 'e' && | |
952306ac RGS |
7847 | name[3] == 's' && |
7848 | name[4] == 's') | |
7849 | { /* bless */ | |
7850 | return -KEY_bless; | |
7851 | } | |
4c3bbe0f | 7852 | |
952306ac | 7853 | goto unknown; |
4c3bbe0f | 7854 | |
0d863452 RH |
7855 | case 'r': |
7856 | if (name[2] == 'e' && | |
7857 | name[3] == 'a' && | |
7858 | name[4] == 'k') | |
7859 | { /* break */ | |
ef89dcc3 | 7860 | return (FEATURE_IS_ENABLED("switch") ? -KEY_break : 0); |
0d863452 RH |
7861 | } |
7862 | ||
7863 | goto unknown; | |
7864 | ||
7865 | default: | |
7866 | goto unknown; | |
7867 | } | |
7868 | ||
4c3bbe0f MHM |
7869 | case 'c': |
7870 | switch (name[1]) | |
7871 | { | |
7872 | case 'h': | |
7873 | switch (name[2]) | |
7874 | { | |
7875 | case 'd': | |
7876 | if (name[3] == 'i' && | |
7877 | name[4] == 'r') | |
7878 | { /* chdir */ | |
7879 | return -KEY_chdir; | |
7880 | } | |
7881 | ||
7882 | goto unknown; | |
7883 | ||
7884 | case 'm': | |
7885 | if (name[3] == 'o' && | |
7886 | name[4] == 'd') | |
7887 | { /* chmod */ | |
7888 | return -KEY_chmod; | |
7889 | } | |
7890 | ||
7891 | goto unknown; | |
7892 | ||
7893 | case 'o': | |
7894 | switch (name[3]) | |
7895 | { | |
7896 | case 'm': | |
7897 | if (name[4] == 'p') | |
7898 | { /* chomp */ | |
7899 | return -KEY_chomp; | |
7900 | } | |
7901 | ||
7902 | goto unknown; | |
7903 | ||
7904 | case 'w': | |
7905 | if (name[4] == 'n') | |
7906 | { /* chown */ | |
7907 | return -KEY_chown; | |
7908 | } | |
7909 | ||
7910 | goto unknown; | |
7911 | ||
7912 | default: | |
7913 | goto unknown; | |
7914 | } | |
7915 | ||
7916 | default: | |
7917 | goto unknown; | |
7918 | } | |
7919 | ||
7920 | case 'l': | |
7921 | if (name[2] == 'o' && | |
7922 | name[3] == 's' && | |
7923 | name[4] == 'e') | |
7924 | { /* close */ | |
7925 | return -KEY_close; | |
7926 | } | |
7927 | ||
7928 | goto unknown; | |
7929 | ||
7930 | case 'r': | |
7931 | if (name[2] == 'y' && | |
7932 | name[3] == 'p' && | |
7933 | name[4] == 't') | |
7934 | { /* crypt */ | |
7935 | return -KEY_crypt; | |
7936 | } | |
7937 | ||
7938 | goto unknown; | |
7939 | ||
7940 | default: | |
7941 | goto unknown; | |
7942 | } | |
7943 | ||
7944 | case 'e': | |
7945 | if (name[1] == 'l' && | |
7946 | name[2] == 's' && | |
7947 | name[3] == 'i' && | |
7948 | name[4] == 'f') | |
7949 | { /* elsif */ | |
7950 | return KEY_elsif; | |
7951 | } | |
7952 | ||
7953 | goto unknown; | |
7954 | ||
7955 | case 'f': | |
7956 | switch (name[1]) | |
7957 | { | |
7958 | case 'c': | |
7959 | if (name[2] == 'n' && | |
7960 | name[3] == 't' && | |
7961 | name[4] == 'l') | |
7962 | { /* fcntl */ | |
7963 | return -KEY_fcntl; | |
7964 | } | |
7965 | ||
7966 | goto unknown; | |
7967 | ||
7968 | case 'l': | |
7969 | if (name[2] == 'o' && | |
7970 | name[3] == 'c' && | |
7971 | name[4] == 'k') | |
7972 | { /* flock */ | |
7973 | return -KEY_flock; | |
7974 | } | |
7975 | ||
7976 | goto unknown; | |
7977 | ||
7978 | default: | |
7979 | goto unknown; | |
7980 | } | |
7981 | ||
0d863452 RH |
7982 | case 'g': |
7983 | if (name[1] == 'i' && | |
7984 | name[2] == 'v' && | |
7985 | name[3] == 'e' && | |
7986 | name[4] == 'n') | |
7987 | { /* given */ | |
ef89dcc3 | 7988 | return (FEATURE_IS_ENABLED("switch") ? KEY_given : 0); |
0d863452 RH |
7989 | } |
7990 | ||
7991 | goto unknown; | |
7992 | ||
4c3bbe0f MHM |
7993 | case 'i': |
7994 | switch (name[1]) | |
7995 | { | |
7996 | case 'n': | |
7997 | if (name[2] == 'd' && | |
7998 | name[3] == 'e' && | |
7999 | name[4] == 'x') | |
8000 | { /* index */ | |
8001 | return -KEY_index; | |
8002 | } | |
8003 | ||
8004 | goto unknown; | |
8005 | ||
8006 | case 'o': | |
8007 | if (name[2] == 'c' && | |
8008 | name[3] == 't' && | |
8009 | name[4] == 'l') | |
8010 | { /* ioctl */ | |
8011 | return -KEY_ioctl; | |
8012 | } | |
8013 | ||
8014 | goto unknown; | |
8015 | ||
8016 | default: | |
8017 | goto unknown; | |
8018 | } | |
8019 | ||
8020 | case 'l': | |
8021 | switch (name[1]) | |
8022 | { | |
8023 | case 'o': | |
8024 | if (name[2] == 'c' && | |
8025 | name[3] == 'a' && | |
8026 | name[4] == 'l') | |
8027 | { /* local */ | |
8028 | return KEY_local; | |
8029 | } | |
8030 | ||
8031 | goto unknown; | |
8032 | ||
8033 | case 's': | |
8034 | if (name[2] == 't' && | |
8035 | name[3] == 'a' && | |
8036 | name[4] == 't') | |
8037 | { /* lstat */ | |
8038 | return -KEY_lstat; | |
8039 | } | |
8040 | ||
8041 | goto unknown; | |
8042 | ||
8043 | default: | |
8044 | goto unknown; | |
8045 | } | |
8046 | ||
8047 | case 'm': | |
8048 | if (name[1] == 'k' && | |
8049 | name[2] == 'd' && | |
8050 | name[3] == 'i' && | |
8051 | name[4] == 'r') | |
8052 | { /* mkdir */ | |
8053 | return -KEY_mkdir; | |
8054 | } | |
8055 | ||
8056 | goto unknown; | |
8057 | ||
8058 | case 'p': | |
8059 | if (name[1] == 'r' && | |
8060 | name[2] == 'i' && | |
8061 | name[3] == 'n' && | |
8062 | name[4] == 't') | |
8063 | { /* print */ | |
8064 | return KEY_print; | |
8065 | } | |
8066 | ||
8067 | goto unknown; | |
8068 | ||
8069 | case 'r': | |
8070 | switch (name[1]) | |
8071 | { | |
8072 | case 'e': | |
8073 | if (name[2] == 's' && | |
8074 | name[3] == 'e' && | |
8075 | name[4] == 't') | |
8076 | { /* reset */ | |
8077 | return -KEY_reset; | |
8078 | } | |
8079 | ||
8080 | goto unknown; | |
8081 | ||
8082 | case 'm': | |
8083 | if (name[2] == 'd' && | |
8084 | name[3] == 'i' && | |
8085 | name[4] == 'r') | |
8086 | { /* rmdir */ | |
8087 | return -KEY_rmdir; | |
8088 | } | |
8089 | ||
8090 | goto unknown; | |
8091 | ||
8092 | default: | |
8093 | goto unknown; | |
8094 | } | |
8095 | ||
8096 | case 's': | |
8097 | switch (name[1]) | |
8098 | { | |
8099 | case 'e': | |
8100 | if (name[2] == 'm' && | |
8101 | name[3] == 'o' && | |
8102 | name[4] == 'p') | |
8103 | { /* semop */ | |
8104 | return -KEY_semop; | |
8105 | } | |
8106 | ||
8107 | goto unknown; | |
8108 | ||
8109 | case 'h': | |
8110 | if (name[2] == 'i' && | |
8111 | name[3] == 'f' && | |
8112 | name[4] == 't') | |
8113 | { /* shift */ | |
8114 | return -KEY_shift; | |
8115 | } | |
8116 | ||
8117 | goto unknown; | |
8118 | ||
8119 | case 'l': | |
8120 | if (name[2] == 'e' && | |
8121 | name[3] == 'e' && | |
8122 | name[4] == 'p') | |
8123 | { /* sleep */ | |
8124 | return -KEY_sleep; | |
8125 | } | |
8126 | ||
8127 | goto unknown; | |
8128 | ||
8129 | case 'p': | |
8130 | if (name[2] == 'l' && | |
8131 | name[3] == 'i' && | |
8132 | name[4] == 't') | |
8133 | { /* split */ | |
8134 | return KEY_split; | |
8135 | } | |
8136 | ||
8137 | goto unknown; | |
8138 | ||
8139 | case 'r': | |
8140 | if (name[2] == 'a' && | |
8141 | name[3] == 'n' && | |
8142 | name[4] == 'd') | |
8143 | { /* srand */ | |
8144 | return -KEY_srand; | |
8145 | } | |
8146 | ||
8147 | goto unknown; | |
8148 | ||
8149 | case 't': | |
952306ac RGS |
8150 | switch (name[2]) |
8151 | { | |
8152 | case 'a': | |
8153 | if (name[3] == 't' && | |
8154 | name[4] == 'e') | |
8155 | { /* state */ | |
712d05cf | 8156 | return (FEATURE_IS_ENABLED("state") ? KEY_state : 0); |
952306ac | 8157 | } |
4c3bbe0f | 8158 | |
952306ac RGS |
8159 | goto unknown; |
8160 | ||
8161 | case 'u': | |
8162 | if (name[3] == 'd' && | |
8163 | name[4] == 'y') | |
8164 | { /* study */ | |
8165 | return KEY_study; | |
8166 | } | |
8167 | ||
8168 | goto unknown; | |
8169 | ||
8170 | default: | |
8171 | goto unknown; | |
8172 | } | |
4c3bbe0f MHM |
8173 | |
8174 | default: | |
8175 | goto unknown; | |
8176 | } | |
8177 | ||
8178 | case 't': | |
8179 | if (name[1] == 'i' && | |
8180 | name[2] == 'm' && | |
8181 | name[3] == 'e' && | |
8182 | name[4] == 's') | |
8183 | { /* times */ | |
8184 | return -KEY_times; | |
8185 | } | |
8186 | ||
8187 | goto unknown; | |
8188 | ||
8189 | case 'u': | |
8190 | switch (name[1]) | |
8191 | { | |
8192 | case 'm': | |
8193 | if (name[2] == 'a' && | |
8194 | name[3] == 's' && | |
8195 | name[4] == 'k') | |
8196 | { /* umask */ | |
8197 | return -KEY_umask; | |
8198 | } | |
8199 | ||
8200 | goto unknown; | |
8201 | ||
8202 | case 'n': | |
8203 | switch (name[2]) | |
8204 | { | |
8205 | case 'd': | |
8206 | if (name[3] == 'e' && | |
8207 | name[4] == 'f') | |
8208 | { /* undef */ | |
8209 | return KEY_undef; | |
8210 | } | |
8211 | ||
8212 | goto unknown; | |
8213 | ||
8214 | case 't': | |
8215 | if (name[3] == 'i') | |
8216 | { | |
8217 | switch (name[4]) | |
8218 | { | |
8219 | case 'e': | |
8220 | { /* untie */ | |
8221 | return KEY_untie; | |
8222 | } | |
8223 | ||
4c3bbe0f MHM |
8224 | case 'l': |
8225 | { /* until */ | |
8226 | return KEY_until; | |
8227 | } | |
8228 | ||
4c3bbe0f MHM |
8229 | default: |
8230 | goto unknown; | |
8231 | } | |
8232 | } | |
8233 | ||
8234 | goto unknown; | |
8235 | ||
8236 | default: | |
8237 | goto unknown; | |
8238 | } | |
8239 | ||
8240 | case 't': | |
8241 | if (name[2] == 'i' && | |
8242 | name[3] == 'm' && | |
8243 | name[4] == 'e') | |
8244 | { /* utime */ | |
8245 | return -KEY_utime; | |
8246 | } | |
8247 | ||
8248 | goto unknown; | |
8249 | ||
8250 | default: | |
8251 | goto unknown; | |
8252 | } | |
8253 | ||
8254 | case 'w': | |
8255 | switch (name[1]) | |
8256 | { | |
8257 | case 'h': | |
8258 | if (name[2] == 'i' && | |
8259 | name[3] == 'l' && | |
8260 | name[4] == 'e') | |
8261 | { /* while */ | |
8262 | return KEY_while; | |
8263 | } | |
8264 | ||
8265 | goto unknown; | |
8266 | ||
8267 | case 'r': | |
8268 | if (name[2] == 'i' && | |
8269 | name[3] == 't' && | |
8270 | name[4] == 'e') | |
8271 | { /* write */ | |
8272 | return -KEY_write; | |
8273 | } | |
8274 | ||
8275 | goto unknown; | |
8276 | ||
8277 | default: | |
8278 | goto unknown; | |
8279 | } | |
8280 | ||
8281 | default: | |
8282 | goto unknown; | |
e2e1dd5a | 8283 | } |
4c3bbe0f MHM |
8284 | |
8285 | case 6: /* 33 tokens of length 6 */ | |
8286 | switch (name[0]) | |
8287 | { | |
8288 | case 'a': | |
8289 | if (name[1] == 'c' && | |
8290 | name[2] == 'c' && | |
8291 | name[3] == 'e' && | |
8292 | name[4] == 'p' && | |
8293 | name[5] == 't') | |
8294 | { /* accept */ | |
8295 | return -KEY_accept; | |
8296 | } | |
8297 | ||
8298 | goto unknown; | |
8299 | ||
8300 | case 'c': | |
8301 | switch (name[1]) | |
8302 | { | |
8303 | case 'a': | |
8304 | if (name[2] == 'l' && | |
8305 | name[3] == 'l' && | |
8306 | name[4] == 'e' && | |
8307 | name[5] == 'r') | |
8308 | { /* caller */ | |
8309 | return -KEY_caller; | |
8310 | } | |
8311 | ||
8312 | goto unknown; | |
8313 | ||
8314 | case 'h': | |
8315 | if (name[2] == 'r' && | |
8316 | name[3] == 'o' && | |
8317 | name[4] == 'o' && | |
8318 | name[5] == 't') | |
8319 | { /* chroot */ | |
8320 | return -KEY_chroot; | |
8321 | } | |
8322 | ||
8323 | goto unknown; | |
8324 | ||
8325 | default: | |
8326 | goto unknown; | |
8327 | } | |
8328 | ||
8329 | case 'd': | |
8330 | if (name[1] == 'e' && | |
8331 | name[2] == 'l' && | |
8332 | name[3] == 'e' && | |
8333 | name[4] == 't' && | |
8334 | name[5] == 'e') | |
8335 | { /* delete */ | |
8336 | return KEY_delete; | |
8337 | } | |
8338 | ||
8339 | goto unknown; | |
8340 | ||
8341 | case 'e': | |
8342 | switch (name[1]) | |
8343 | { | |
8344 | case 'l': | |
8345 | if (name[2] == 's' && | |
8346 | name[3] == 'e' && | |
8347 | name[4] == 'i' && | |
8348 | name[5] == 'f') | |
8349 | { /* elseif */ | |
8350 | if(ckWARN_d(WARN_SYNTAX)) | |
8351 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); | |
8352 | } | |
8353 | ||
8354 | goto unknown; | |
8355 | ||
8356 | case 'x': | |
8357 | if (name[2] == 'i' && | |
8358 | name[3] == 's' && | |
8359 | name[4] == 't' && | |
8360 | name[5] == 's') | |
8361 | { /* exists */ | |
8362 | return KEY_exists; | |
8363 | } | |
8364 | ||
8365 | goto unknown; | |
8366 | ||
8367 | default: | |
8368 | goto unknown; | |
8369 | } | |
8370 | ||
8371 | case 'f': | |
8372 | switch (name[1]) | |
8373 | { | |
8374 | case 'i': | |
8375 | if (name[2] == 'l' && | |
8376 | name[3] == 'e' && | |
8377 | name[4] == 'n' && | |
8378 | name[5] == 'o') | |
8379 | { /* fileno */ | |
8380 | return -KEY_fileno; | |
8381 | } | |
8382 | ||
8383 | goto unknown; | |
8384 | ||
8385 | case 'o': | |
8386 | if (name[2] == 'r' && | |
8387 | name[3] == 'm' && | |
8388 | name[4] == 'a' && | |
8389 | name[5] == 't') | |
8390 | { /* format */ | |
8391 | return KEY_format; | |
8392 | } | |
8393 | ||
8394 | goto unknown; | |
8395 | ||
8396 | default: | |
8397 | goto unknown; | |
8398 | } | |
8399 | ||
8400 | case 'g': | |
8401 | if (name[1] == 'm' && | |
8402 | name[2] == 't' && | |
8403 | name[3] == 'i' && | |
8404 | name[4] == 'm' && | |
8405 | name[5] == 'e') | |
8406 | { /* gmtime */ | |
8407 | return -KEY_gmtime; | |
8408 | } | |
8409 | ||
8410 | goto unknown; | |
8411 | ||
8412 | case 'l': | |
8413 | switch (name[1]) | |
8414 | { | |
8415 | case 'e': | |
8416 | if (name[2] == 'n' && | |
8417 | name[3] == 'g' && | |
8418 | name[4] == 't' && | |
8419 | name[5] == 'h') | |
8420 | { /* length */ | |
8421 | return -KEY_length; | |
8422 | } | |
8423 | ||
8424 | goto unknown; | |
8425 | ||
8426 | case 'i': | |
8427 | if (name[2] == 's' && | |
8428 | name[3] == 't' && | |
8429 | name[4] == 'e' && | |
8430 | name[5] == 'n') | |
8431 | { /* listen */ | |
8432 | return -KEY_listen; | |
8433 | } | |
8434 | ||
8435 | goto unknown; | |
8436 | ||
8437 | default: | |
8438 | goto unknown; | |
8439 | } | |
8440 | ||
8441 | case 'm': | |
8442 | if (name[1] == 's' && | |
8443 | name[2] == 'g') | |
8444 | { | |
8445 | switch (name[3]) | |
8446 | { | |
8447 | case 'c': | |
8448 | if (name[4] == 't' && | |
8449 | name[5] == 'l') | |
8450 | { /* msgctl */ | |
8451 | return -KEY_msgctl; | |
8452 | } | |
8453 | ||
8454 | goto unknown; | |
8455 | ||
8456 | case 'g': | |
8457 | if (name[4] == 'e' && | |
8458 | name[5] == 't') | |
8459 | { /* msgget */ | |
8460 | return -KEY_msgget; | |
8461 | } | |
8462 | ||
8463 | goto unknown; | |
8464 | ||
8465 | case 'r': | |
8466 | if (name[4] == 'c' && | |
8467 | name[5] == 'v') | |
8468 | { /* msgrcv */ | |
8469 | return -KEY_msgrcv; | |
8470 | } | |
8471 | ||
8472 | goto unknown; | |
8473 | ||
8474 | case 's': | |
8475 | if (name[4] == 'n' && | |
8476 | name[5] == 'd') | |
8477 | { /* msgsnd */ | |
8478 | return -KEY_msgsnd; | |
8479 | } | |
8480 | ||
8481 | goto unknown; | |
8482 | ||
8483 | default: | |
8484 | goto unknown; | |
8485 | } | |
8486 | } | |
8487 | ||
8488 | goto unknown; | |
8489 | ||
8490 | case 'p': | |
8491 | if (name[1] == 'r' && | |
8492 | name[2] == 'i' && | |
8493 | name[3] == 'n' && | |
8494 | name[4] == 't' && | |
8495 | name[5] == 'f') | |
8496 | { /* printf */ | |
8497 | return KEY_printf; | |
8498 | } | |
8499 | ||
8500 | goto unknown; | |
8501 | ||
8502 | case 'r': | |
8503 | switch (name[1]) | |
8504 | { | |
8505 | case 'e': | |
8506 | switch (name[2]) | |
8507 | { | |
8508 | case 'n': | |
8509 | if (name[3] == 'a' && | |
8510 | name[4] == 'm' && | |
8511 | name[5] == 'e') | |
8512 | { /* rename */ | |
8513 | return -KEY_rename; | |
8514 | } | |
8515 | ||
8516 | goto unknown; | |
8517 | ||
8518 | case 't': | |
8519 | if (name[3] == 'u' && | |
8520 | name[4] == 'r' && | |
8521 | name[5] == 'n') | |
8522 | { /* return */ | |
8523 | return KEY_return; | |
8524 | } | |
8525 | ||
8526 | goto unknown; | |
8527 | ||
8528 | default: | |
8529 | goto unknown; | |
8530 | } | |
8531 | ||
8532 | case 'i': | |
8533 | if (name[2] == 'n' && | |
8534 | name[3] == 'd' && | |
8535 | name[4] == 'e' && | |
8536 | name[5] == 'x') | |
8537 | { /* rindex */ | |
8538 | return -KEY_rindex; | |
8539 | } | |
8540 | ||
8541 | goto unknown; | |
8542 | ||
8543 | default: | |
8544 | goto unknown; | |
8545 | } | |
8546 | ||
8547 | case 's': | |
8548 | switch (name[1]) | |
8549 | { | |
8550 | case 'c': | |
8551 | if (name[2] == 'a' && | |
8552 | name[3] == 'l' && | |
8553 | name[4] == 'a' && | |
8554 | name[5] == 'r') | |
8555 | { /* scalar */ | |
8556 | return KEY_scalar; | |
8557 | } | |
8558 | ||
8559 | goto unknown; | |
8560 | ||
8561 | case 'e': | |
8562 | switch (name[2]) | |
8563 | { | |
8564 | case 'l': | |
8565 | if (name[3] == 'e' && | |
8566 | name[4] == 'c' && | |
8567 | name[5] == 't') | |
8568 | { /* select */ | |
8569 | return -KEY_select; | |
8570 | } | |
8571 | ||
8572 | goto unknown; | |
8573 | ||
8574 | case 'm': | |
8575 | switch (name[3]) | |
8576 | { | |
8577 | case 'c': | |
8578 | if (name[4] == 't' && | |
8579 | name[5] == 'l') | |
8580 | { /* semctl */ | |
8581 | return -KEY_semctl; | |
8582 | } | |
8583 | ||
8584 | goto unknown; | |
8585 | ||
8586 | case 'g': | |
8587 | if (name[4] == 'e' && | |
8588 | name[5] == 't') | |
8589 | { /* semget */ | |
8590 | return -KEY_semget; | |
8591 | } | |
8592 | ||
8593 | goto unknown; | |
8594 | ||
8595 | default: | |
8596 | goto unknown; | |
8597 | } | |
8598 | ||
8599 | default: | |
8600 | goto unknown; | |
8601 | } | |
8602 | ||
8603 | case 'h': | |
8604 | if (name[2] == 'm') | |
8605 | { | |
8606 | switch (name[3]) | |
8607 | { | |
8608 | case 'c': | |
8609 | if (name[4] == 't' && | |
8610 | name[5] == 'l') | |
8611 | { /* shmctl */ | |
8612 | return -KEY_shmctl; | |
8613 | } | |
8614 | ||
8615 | goto unknown; | |
8616 | ||
8617 | case 'g': | |
8618 | if (name[4] == 'e' && | |
8619 | name[5] == 't') | |
8620 | { /* shmget */ | |
8621 | return -KEY_shmget; | |
8622 | } | |
8623 | ||
8624 | goto unknown; | |
8625 | ||
8626 | default: | |
8627 | goto unknown; | |
8628 | } | |
8629 | } | |
8630 | ||
8631 | goto unknown; | |
8632 | ||
8633 | case 'o': | |
8634 | if (name[2] == 'c' && | |
8635 | name[3] == 'k' && | |
8636 | name[4] == 'e' && | |
8637 | name[5] == 't') | |
8638 | { /* socket */ | |
8639 | return -KEY_socket; | |
8640 | } | |
8641 | ||
8642 | goto unknown; | |
8643 | ||
8644 | case 'p': | |
8645 | if (name[2] == 'l' && | |
8646 | name[3] == 'i' && | |
8647 | name[4] == 'c' && | |
8648 | name[5] == 'e') | |
8649 | { /* splice */ | |
8650 | return -KEY_splice; | |
8651 | } | |
8652 | ||
8653 | goto unknown; | |
8654 | ||
8655 | case 'u': | |
8656 | if (name[2] == 'b' && | |
8657 | name[3] == 's' && | |
8658 | name[4] == 't' && | |
8659 | name[5] == 'r') | |
8660 | { /* substr */ | |
8661 | return -KEY_substr; | |
8662 | } | |
8663 | ||
8664 | goto unknown; | |
8665 | ||
8666 | case 'y': | |
8667 | if (name[2] == 's' && | |
8668 | name[3] == 't' && | |
8669 | name[4] == 'e' && | |
8670 | name[5] == 'm') | |
8671 | { /* system */ | |
8672 | return -KEY_system; | |
8673 | } | |
8674 | ||
8675 | goto unknown; | |
8676 | ||
8677 | default: | |
8678 | goto unknown; | |
8679 | } | |
8680 | ||
8681 | case 'u': | |
8682 | if (name[1] == 'n') | |
8683 | { | |
8684 | switch (name[2]) | |
8685 | { | |
8686 | case 'l': | |
8687 | switch (name[3]) | |
8688 | { | |
8689 | case 'e': | |
8690 | if (name[4] == 's' && | |
8691 | name[5] == 's') | |
8692 | { /* unless */ | |
8693 | return KEY_unless; | |
8694 | } | |
8695 | ||
8696 | goto unknown; | |
8697 | ||
8698 | case 'i': | |
8699 | if (name[4] == 'n' && | |
8700 | name[5] == 'k') | |
8701 | { /* unlink */ | |
8702 | return -KEY_unlink; | |
8703 | } | |
8704 | ||
8705 | goto unknown; | |
8706 | ||
8707 | default: | |
8708 | goto unknown; | |
8709 | } | |
8710 | ||
8711 | case 'p': | |
8712 | if (name[3] == 'a' && | |
8713 | name[4] == 'c' && | |
8714 | name[5] == 'k') | |
8715 | { /* unpack */ | |
8716 | return -KEY_unpack; | |
8717 | } | |
8718 | ||
8719 | goto unknown; | |
8720 | ||
8721 | default: | |
8722 | goto unknown; | |
8723 | } | |
8724 | } | |
8725 | ||
8726 | goto unknown; | |
8727 | ||
8728 | case 'v': | |
8729 | if (name[1] == 'a' && | |
8730 | name[2] == 'l' && | |
8731 | name[3] == 'u' && | |
8732 | name[4] == 'e' && | |
8733 | name[5] == 's') | |
8734 | { /* values */ | |
8735 | return -KEY_values; | |
8736 | } | |
8737 | ||
8738 | goto unknown; | |
8739 | ||
8740 | default: | |
8741 | goto unknown; | |
e2e1dd5a | 8742 | } |
4c3bbe0f | 8743 | |
0d863452 | 8744 | case 7: /* 29 tokens of length 7 */ |
4c3bbe0f MHM |
8745 | switch (name[0]) |
8746 | { | |
8747 | case 'D': | |
8748 | if (name[1] == 'E' && | |
8749 | name[2] == 'S' && | |
8750 | name[3] == 'T' && | |
8751 | name[4] == 'R' && | |
8752 | name[5] == 'O' && | |
8753 | name[6] == 'Y') | |
8754 | { /* DESTROY */ | |
8755 | return KEY_DESTROY; | |
8756 | } | |
8757 | ||
8758 | goto unknown; | |
8759 | ||
8760 | case '_': | |
8761 | if (name[1] == '_' && | |
8762 | name[2] == 'E' && | |
8763 | name[3] == 'N' && | |
8764 | name[4] == 'D' && | |
8765 | name[5] == '_' && | |
8766 | name[6] == '_') | |
8767 | { /* __END__ */ | |
8768 | return KEY___END__; | |
8769 | } | |
8770 | ||
8771 | goto unknown; | |
8772 | ||
8773 | case 'b': | |
8774 | if (name[1] == 'i' && | |
8775 | name[2] == 'n' && | |
8776 | name[3] == 'm' && | |
8777 | name[4] == 'o' && | |
8778 | name[5] == 'd' && | |
8779 | name[6] == 'e') | |
8780 | { /* binmode */ | |
8781 | return -KEY_binmode; | |
8782 | } | |
8783 | ||
8784 | goto unknown; | |
8785 | ||
8786 | case 'c': | |
8787 | if (name[1] == 'o' && | |
8788 | name[2] == 'n' && | |
8789 | name[3] == 'n' && | |
8790 | name[4] == 'e' && | |
8791 | name[5] == 'c' && | |
8792 | name[6] == 't') | |
8793 | { /* connect */ | |
8794 | return -KEY_connect; | |
8795 | } | |
8796 | ||
8797 | goto unknown; | |
8798 | ||
8799 | case 'd': | |
8800 | switch (name[1]) | |
8801 | { | |
8802 | case 'b': | |
8803 | if (name[2] == 'm' && | |
8804 | name[3] == 'o' && | |
8805 | name[4] == 'p' && | |
8806 | name[5] == 'e' && | |
8807 | name[6] == 'n') | |
8808 | { /* dbmopen */ | |
8809 | return -KEY_dbmopen; | |
8810 | } | |
8811 | ||
8812 | goto unknown; | |
8813 | ||
8814 | case 'e': | |
0d863452 RH |
8815 | if (name[2] == 'f') |
8816 | { | |
8817 | switch (name[3]) | |
8818 | { | |
8819 | case 'a': | |
8820 | if (name[4] == 'u' && | |
8821 | name[5] == 'l' && | |
8822 | name[6] == 't') | |
8823 | { /* default */ | |
ef89dcc3 | 8824 | return (FEATURE_IS_ENABLED("switch") ? KEY_default : 0); |
0d863452 RH |
8825 | } |
8826 | ||
8827 | goto unknown; | |
8828 | ||
8829 | case 'i': | |
8830 | if (name[4] == 'n' && | |
952306ac RGS |
8831 | name[5] == 'e' && |
8832 | name[6] == 'd') | |
8833 | { /* defined */ | |
8834 | return KEY_defined; | |
8835 | } | |
4c3bbe0f | 8836 | |
952306ac | 8837 | goto unknown; |
4c3bbe0f | 8838 | |
952306ac RGS |
8839 | default: |
8840 | goto unknown; | |
8841 | } | |
0d863452 RH |
8842 | } |
8843 | ||
8844 | goto unknown; | |
8845 | ||
8846 | default: | |
8847 | goto unknown; | |
8848 | } | |
4c3bbe0f MHM |
8849 | |
8850 | case 'f': | |
8851 | if (name[1] == 'o' && | |
8852 | name[2] == 'r' && | |
8853 | name[3] == 'e' && | |
8854 | name[4] == 'a' && | |
8855 | name[5] == 'c' && | |
8856 | name[6] == 'h') | |
8857 | { /* foreach */ | |
8858 | return KEY_foreach; | |
8859 | } | |
8860 | ||
8861 | goto unknown; | |
8862 | ||
8863 | case 'g': | |
8864 | if (name[1] == 'e' && | |
8865 | name[2] == 't' && | |
8866 | name[3] == 'p') | |
8867 | { | |
8868 | switch (name[4]) | |
8869 | { | |
8870 | case 'g': | |
8871 | if (name[5] == 'r' && | |
8872 | name[6] == 'p') | |
8873 | { /* getpgrp */ | |
8874 | return -KEY_getpgrp; | |
8875 | } | |
8876 | ||
8877 | goto unknown; | |
8878 | ||
8879 | case 'p': | |
8880 | if (name[5] == 'i' && | |
8881 | name[6] == 'd') | |
8882 | { /* getppid */ | |
8883 | return -KEY_getppid; | |
8884 | } | |
8885 | ||
8886 | goto unknown; | |
8887 | ||
8888 | default: | |
8889 | goto unknown; | |
8890 | } | |
8891 | } | |
8892 | ||
8893 | goto unknown; | |
8894 | ||
8895 | case 'l': | |
8896 | if (name[1] == 'c' && | |
8897 | name[2] == 'f' && | |
8898 | name[3] == 'i' && | |
8899 | name[4] == 'r' && | |
8900 | name[5] == 's' && | |
8901 | name[6] == 't') | |
8902 | { /* lcfirst */ | |
8903 | return -KEY_lcfirst; | |
8904 | } | |
8905 | ||
8906 | goto unknown; | |
8907 | ||
8908 | case 'o': | |
8909 | if (name[1] == 'p' && | |
8910 | name[2] == 'e' && | |
8911 | name[3] == 'n' && | |
8912 | name[4] == 'd' && | |
8913 | name[5] == 'i' && | |
8914 | name[6] == 'r') | |
8915 | { /* opendir */ | |
8916 | return -KEY_opendir; | |
8917 | } | |
8918 | ||
8919 | goto unknown; | |
8920 | ||
8921 | case 'p': | |
8922 | if (name[1] == 'a' && | |
8923 | name[2] == 'c' && | |
8924 | name[3] == 'k' && | |
8925 | name[4] == 'a' && | |
8926 | name[5] == 'g' && | |
8927 | name[6] == 'e') | |
8928 | { /* package */ | |
8929 | return KEY_package; | |
8930 | } | |
8931 | ||
8932 | goto unknown; | |
8933 | ||
8934 | case 'r': | |
8935 | if (name[1] == 'e') | |
8936 | { | |
8937 | switch (name[2]) | |
8938 | { | |
8939 | case 'a': | |
8940 | if (name[3] == 'd' && | |
8941 | name[4] == 'd' && | |
8942 | name[5] == 'i' && | |
8943 | name[6] == 'r') | |
8944 | { /* readdir */ | |
8945 | return -KEY_readdir; | |
8946 | } | |
8947 | ||
8948 | goto unknown; | |
8949 | ||
8950 | case 'q': | |
8951 | if (name[3] == 'u' && | |
8952 | name[4] == 'i' && | |
8953 | name[5] == 'r' && | |
8954 | name[6] == 'e') | |
8955 | { /* require */ | |
8956 | return KEY_require; | |
8957 | } | |
8958 | ||
8959 | goto unknown; | |
8960 | ||
8961 | case 'v': | |
8962 | if (name[3] == 'e' && | |
8963 | name[4] == 'r' && | |
8964 | name[5] == 's' && | |
8965 | name[6] == 'e') | |
8966 | { /* reverse */ | |
8967 | return -KEY_reverse; | |
8968 | } | |
8969 | ||
8970 | goto unknown; | |
8971 | ||
8972 | default: | |
8973 | goto unknown; | |
8974 | } | |
8975 | } | |
8976 | ||
8977 | goto unknown; | |
8978 | ||
8979 | case 's': | |
8980 | switch (name[1]) | |
8981 | { | |
8982 | case 'e': | |
8983 | switch (name[2]) | |
8984 | { | |
8985 | case 'e': | |
8986 | if (name[3] == 'k' && | |
8987 | name[4] == 'd' && | |
8988 | name[5] == 'i' && | |
8989 | name[6] == 'r') | |
8990 | { /* seekdir */ | |
8991 | return -KEY_seekdir; | |
8992 | } | |
8993 | ||
8994 | goto unknown; | |
8995 | ||
8996 | case 't': | |
8997 | if (name[3] == 'p' && | |
8998 | name[4] == 'g' && | |
8999 | name[5] == 'r' && | |
9000 | name[6] == 'p') | |
9001 | { /* setpgrp */ | |
9002 | return -KEY_setpgrp; | |
9003 | } | |
9004 | ||
9005 | goto unknown; | |
9006 | ||
9007 | default: | |
9008 | goto unknown; | |
9009 | } | |
9010 | ||
9011 | case 'h': | |
9012 | if (name[2] == 'm' && | |
9013 | name[3] == 'r' && | |
9014 | name[4] == 'e' && | |
9015 | name[5] == 'a' && | |
9016 | name[6] == 'd') | |
9017 | { /* shmread */ | |
9018 | return -KEY_shmread; | |
9019 | } | |
9020 | ||
9021 | goto unknown; | |
9022 | ||
9023 | case 'p': | |
9024 | if (name[2] == 'r' && | |
9025 | name[3] == 'i' && | |
9026 | name[4] == 'n' && | |
9027 | name[5] == 't' && | |
9028 | name[6] == 'f') | |
9029 | { /* sprintf */ | |
9030 | return -KEY_sprintf; | |
9031 | } | |
9032 | ||
9033 | goto unknown; | |
9034 | ||
9035 | case 'y': | |
9036 | switch (name[2]) | |
9037 | { | |
9038 | case 'm': | |
9039 | if (name[3] == 'l' && | |
9040 | name[4] == 'i' && | |
9041 | name[5] == 'n' && | |
9042 | name[6] == 'k') | |
9043 | { /* symlink */ | |
9044 | return -KEY_symlink; | |
9045 | } | |
9046 | ||
9047 | goto unknown; | |
9048 | ||
9049 | case 's': | |
9050 | switch (name[3]) | |
9051 | { | |
9052 | case 'c': | |
9053 | if (name[4] == 'a' && | |
9054 | name[5] == 'l' && | |
9055 | name[6] == 'l') | |
9056 | { /* syscall */ | |
9057 | return -KEY_syscall; | |
9058 | } | |
9059 | ||
9060 | goto unknown; | |
9061 | ||
9062 | case 'o': | |
9063 | if (name[4] == 'p' && | |
9064 | name[5] == 'e' && | |
9065 | name[6] == 'n') | |
9066 | { /* sysopen */ | |
9067 | return -KEY_sysopen; | |
9068 | } | |
9069 | ||
9070 | goto unknown; | |
9071 | ||
9072 | case 'r': | |
9073 | if (name[4] == 'e' && | |
9074 | name[5] == 'a' && | |
9075 | name[6] == 'd') | |
9076 | { /* sysread */ | |
9077 | return -KEY_sysread; | |
9078 | } | |
9079 | ||
9080 | goto unknown; | |
9081 | ||
9082 | case 's': | |
9083 | if (name[4] == 'e' && | |
9084 | name[5] == 'e' && | |
9085 | name[6] == 'k') | |
9086 | { /* sysseek */ | |
9087 | return -KEY_sysseek; | |
9088 | } | |
9089 | ||
9090 | goto unknown; | |
9091 | ||
9092 | default: | |
9093 | goto unknown; | |
9094 | } | |
9095 | ||
9096 | default: | |
9097 | goto unknown; | |
9098 | } | |
9099 | ||
9100 | default: | |
9101 | goto unknown; | |
9102 | } | |
9103 | ||
9104 | case 't': | |
9105 | if (name[1] == 'e' && | |
9106 | name[2] == 'l' && | |
9107 | name[3] == 'l' && | |
9108 | name[4] == 'd' && | |
9109 | name[5] == 'i' && | |
9110 | name[6] == 'r') | |
9111 | { /* telldir */ | |
9112 | return -KEY_telldir; | |
9113 | } | |
9114 | ||
9115 | goto unknown; | |
9116 | ||
9117 | case 'u': | |
9118 | switch (name[1]) | |
9119 | { | |
9120 | case 'c': | |
9121 | if (name[2] == 'f' && | |
9122 | name[3] == 'i' && | |
9123 | name[4] == 'r' && | |
9124 | name[5] == 's' && | |
9125 | name[6] == 't') | |
9126 | { /* ucfirst */ | |
9127 | return -KEY_ucfirst; | |
9128 | } | |
9129 | ||
9130 | goto unknown; | |
9131 | ||
9132 | case 'n': | |
9133 | if (name[2] == 's' && | |
9134 | name[3] == 'h' && | |
9135 | name[4] == 'i' && | |
9136 | name[5] == 'f' && | |
9137 | name[6] == 't') | |
9138 | { /* unshift */ | |
9139 | return -KEY_unshift; | |
9140 | } | |
9141 | ||
9142 | goto unknown; | |
9143 | ||
9144 | default: | |
9145 | goto unknown; | |
9146 | } | |
9147 | ||
9148 | case 'w': | |
9149 | if (name[1] == 'a' && | |
9150 | name[2] == 'i' && | |
9151 | name[3] == 't' && | |
9152 | name[4] == 'p' && | |
9153 | name[5] == 'i' && | |
9154 | name[6] == 'd') | |
9155 | { /* waitpid */ | |
9156 | return -KEY_waitpid; | |
9157 | } | |
9158 | ||
9159 | goto unknown; | |
9160 | ||
9161 | default: | |
9162 | goto unknown; | |
9163 | } | |
9164 | ||
9165 | case 8: /* 26 tokens of length 8 */ | |
9166 | switch (name[0]) | |
9167 | { | |
9168 | case 'A': | |
9169 | if (name[1] == 'U' && | |
9170 | name[2] == 'T' && | |
9171 | name[3] == 'O' && | |
9172 | name[4] == 'L' && | |
9173 | name[5] == 'O' && | |
9174 | name[6] == 'A' && | |
9175 | name[7] == 'D') | |
9176 | { /* AUTOLOAD */ | |
9177 | return KEY_AUTOLOAD; | |
9178 | } | |
9179 | ||
9180 | goto unknown; | |
9181 | ||
9182 | case '_': | |
9183 | if (name[1] == '_') | |
9184 | { | |
9185 | switch (name[2]) | |
9186 | { | |
9187 | case 'D': | |
9188 | if (name[3] == 'A' && | |
9189 | name[4] == 'T' && | |
9190 | name[5] == 'A' && | |
9191 | name[6] == '_' && | |
9192 | name[7] == '_') | |
9193 | { /* __DATA__ */ | |
9194 | return KEY___DATA__; | |
9195 | } | |
9196 | ||
9197 | goto unknown; | |
9198 | ||
9199 | case 'F': | |
9200 | if (name[3] == 'I' && | |
9201 | name[4] == 'L' && | |
9202 | name[5] == 'E' && | |
9203 | name[6] == '_' && | |
9204 | name[7] == '_') | |
9205 | { /* __FILE__ */ | |
9206 | return -KEY___FILE__; | |
9207 | } | |
9208 | ||
9209 | goto unknown; | |
9210 | ||
9211 | case 'L': | |
9212 | if (name[3] == 'I' && | |
9213 | name[4] == 'N' && | |
9214 | name[5] == 'E' && | |
9215 | name[6] == '_' && | |
9216 | name[7] == '_') | |
9217 | { /* __LINE__ */ | |
9218 | return -KEY___LINE__; | |
9219 | } | |
9220 | ||
9221 | goto unknown; | |
9222 | ||
9223 | default: | |
9224 | goto unknown; | |
9225 | } | |
9226 | } | |
9227 | ||
9228 | goto unknown; | |
9229 | ||
9230 | case 'c': | |
9231 | switch (name[1]) | |
9232 | { | |
9233 | case 'l': | |
9234 | if (name[2] == 'o' && | |
9235 | name[3] == 's' && | |
9236 | name[4] == 'e' && | |
9237 | name[5] == 'd' && | |
9238 | name[6] == 'i' && | |
9239 | name[7] == 'r') | |
9240 | { /* closedir */ | |
9241 | return -KEY_closedir; | |
9242 | } | |
9243 | ||
9244 | goto unknown; | |
9245 | ||
9246 | case 'o': | |
9247 | if (name[2] == 'n' && | |
9248 | name[3] == 't' && | |
9249 | name[4] == 'i' && | |
9250 | name[5] == 'n' && | |
9251 | name[6] == 'u' && | |
9252 | name[7] == 'e') | |
9253 | { /* continue */ | |
9254 | return -KEY_continue; | |
9255 | } | |
9256 | ||
9257 | goto unknown; | |
9258 | ||
9259 | default: | |
9260 | goto unknown; | |
9261 | } | |
9262 | ||
9263 | case 'd': | |
9264 | if (name[1] == 'b' && | |
9265 | name[2] == 'm' && | |
9266 | name[3] == 'c' && | |
9267 | name[4] == 'l' && | |
9268 | name[5] == 'o' && | |
9269 | name[6] == 's' && | |
9270 | name[7] == 'e') | |
9271 | { /* dbmclose */ | |
9272 | return -KEY_dbmclose; | |
9273 | } | |
9274 | ||
9275 | goto unknown; | |
9276 | ||
9277 | case 'e': | |
9278 | if (name[1] == 'n' && | |
9279 | name[2] == 'd') | |
9280 | { | |
9281 | switch (name[3]) | |
9282 | { | |
9283 | case 'g': | |
9284 | if (name[4] == 'r' && | |
9285 | name[5] == 'e' && | |
9286 | name[6] == 'n' && | |
9287 | name[7] == 't') | |
9288 | { /* endgrent */ | |
9289 | return -KEY_endgrent; | |
9290 | } | |
9291 | ||
9292 | goto unknown; | |
9293 | ||
9294 | case 'p': | |
9295 | if (name[4] == 'w' && | |
9296 | name[5] == 'e' && | |
9297 | name[6] == 'n' && | |
9298 | name[7] == 't') | |
9299 | { /* endpwent */ | |
9300 | return -KEY_endpwent; | |
9301 | } | |
9302 | ||
9303 | goto unknown; | |
9304 | ||
9305 | default: | |
9306 | goto unknown; | |
9307 | } | |
9308 | } | |
9309 | ||
9310 | goto unknown; | |
9311 | ||
9312 | case 'f': | |
9313 | if (name[1] == 'o' && | |
9314 | name[2] == 'r' && | |
9315 | name[3] == 'm' && | |
9316 | name[4] == 'l' && | |
9317 | name[5] == 'i' && | |
9318 | name[6] == 'n' && | |
9319 | name[7] == 'e') | |
9320 | { /* formline */ | |
9321 | return -KEY_formline; | |
9322 | } | |
9323 | ||
9324 | goto unknown; | |
9325 | ||
9326 | case 'g': | |
9327 | if (name[1] == 'e' && | |
9328 | name[2] == 't') | |
9329 | { | |
9330 | switch (name[3]) | |
9331 | { | |
9332 | case 'g': | |
9333 | if (name[4] == 'r') | |
9334 | { | |
9335 | switch (name[5]) | |
9336 | { | |
9337 | case 'e': | |
9338 | if (name[6] == 'n' && | |
9339 | name[7] == 't') | |
9340 | { /* getgrent */ | |
9341 | return -KEY_getgrent; | |
9342 | } | |
9343 | ||
9344 | goto unknown; | |
9345 | ||
9346 | case 'g': | |
9347 | if (name[6] == 'i' && | |
9348 | name[7] == 'd') | |
9349 | { /* getgrgid */ | |
9350 | return -KEY_getgrgid; | |
9351 | } | |
9352 | ||
9353 | goto unknown; | |
9354 | ||
9355 | case 'n': | |
9356 | if (name[6] == 'a' && | |
9357 | name[7] == 'm') | |
9358 | { /* getgrnam */ | |
9359 | return -KEY_getgrnam; | |
9360 | } | |
9361 | ||
9362 | goto unknown; | |
9363 | ||
9364 | default: | |
9365 | goto unknown; | |
9366 | } | |
9367 | } | |
9368 | ||
9369 | goto unknown; | |
9370 | ||
9371 | case 'l': | |
9372 | if (name[4] == 'o' && | |
9373 | name[5] == 'g' && | |
9374 | name[6] == 'i' && | |
9375 | name[7] == 'n') | |
9376 | { /* getlogin */ | |
9377 | return -KEY_getlogin; | |
9378 | } | |
9379 | ||
9380 | goto unknown; | |
9381 | ||
9382 | case 'p': | |
9383 | if (name[4] == 'w') | |
9384 | { | |
9385 | switch (name[5]) | |
9386 | { | |
9387 | case 'e': | |
9388 | if (name[6] == 'n' && | |
9389 | name[7] == 't') | |
9390 | { /* getpwent */ | |
9391 | return -KEY_getpwent; | |
9392 | } | |
9393 | ||
9394 | goto unknown; | |
9395 | ||
9396 | case 'n': | |
9397 | if (name[6] == 'a' && | |
9398 | name[7] == 'm') | |
9399 | { /* getpwnam */ | |
9400 | return -KEY_getpwnam; | |
9401 | } | |
9402 | ||
9403 | goto unknown; | |
9404 | ||
9405 | case 'u': | |
9406 | if (name[6] == 'i' && | |
9407 | name[7] == 'd') | |
9408 | { /* getpwuid */ | |
9409 | return -KEY_getpwuid; | |
9410 | } | |
9411 | ||
9412 | goto unknown; | |
9413 | ||
9414 | default: | |
9415 | goto unknown; | |
9416 | } | |
9417 | } | |
9418 | ||
9419 | goto unknown; | |
9420 | ||
9421 | default: | |
9422 | goto unknown; | |
9423 | } | |
9424 | } | |
9425 | ||
9426 | goto unknown; | |
9427 | ||
9428 | case 'r': | |
9429 | if (name[1] == 'e' && | |
9430 | name[2] == 'a' && | |
9431 | name[3] == 'd') | |
9432 | { | |
9433 | switch (name[4]) | |
9434 | { | |
9435 | case 'l': | |
9436 | if (name[5] == 'i' && | |
9437 | name[6] == 'n') | |
9438 | { | |
9439 | switch (name[7]) | |
9440 | { | |
9441 | case 'e': | |
9442 | { /* readline */ | |
9443 | return -KEY_readline; | |
9444 | } | |
9445 | ||
4c3bbe0f MHM |
9446 | case 'k': |
9447 | { /* readlink */ | |
9448 | return -KEY_readlink; | |
9449 | } | |
9450 | ||
4c3bbe0f MHM |
9451 | default: |
9452 | goto unknown; | |
9453 | } | |
9454 | } | |
9455 | ||
9456 | goto unknown; | |
9457 | ||
9458 | case 'p': | |
9459 | if (name[5] == 'i' && | |
9460 | name[6] == 'p' && | |
9461 | name[7] == 'e') | |
9462 | { /* readpipe */ | |
9463 | return -KEY_readpipe; | |
9464 | } | |
9465 | ||
9466 | goto unknown; | |
9467 | ||
9468 | default: | |
9469 | goto unknown; | |
9470 | } | |
9471 | } | |
9472 | ||
9473 | goto unknown; | |
9474 | ||
9475 | case 's': | |
9476 | switch (name[1]) | |
9477 | { | |
9478 | case 'e': | |
9479 | if (name[2] == 't') | |
9480 | { | |
9481 | switch (name[3]) | |
9482 | { | |
9483 | case 'g': | |
9484 | if (name[4] == 'r' && | |
9485 | name[5] == 'e' && | |
9486 | name[6] == 'n' && | |
9487 | name[7] == 't') | |
9488 | { /* setgrent */ | |
9489 | return -KEY_setgrent; | |
9490 | } | |
9491 | ||
9492 | goto unknown; | |
9493 | ||
9494 | case 'p': | |
9495 | if (name[4] == 'w' && | |
9496 | name[5] == 'e' && | |
9497 | name[6] == 'n' && | |
9498 | name[7] == 't') | |
9499 | { /* setpwent */ | |
9500 | return -KEY_setpwent; | |
9501 | } | |
9502 | ||
9503 | goto unknown; | |
9504 | ||
9505 | default: | |
9506 | goto unknown; | |
9507 | } | |
9508 | } | |
9509 | ||
9510 | goto unknown; | |
9511 | ||
9512 | case 'h': | |
9513 | switch (name[2]) | |
9514 | { | |
9515 | case 'm': | |
9516 | if (name[3] == 'w' && | |
9517 | name[4] == 'r' && | |
9518 | name[5] == 'i' && | |
9519 | name[6] == 't' && | |
9520 | name[7] == 'e') | |
9521 | { /* shmwrite */ | |
9522 | return -KEY_shmwrite; | |
9523 | } | |
9524 | ||
9525 | goto unknown; | |
9526 | ||
9527 | case 'u': | |
9528 | if (name[3] == 't' && | |
9529 | name[4] == 'd' && | |
9530 | name[5] == 'o' && | |
9531 | name[6] == 'w' && | |
9532 | name[7] == 'n') | |
9533 | { /* shutdown */ | |
9534 | return -KEY_shutdown; | |
9535 | } | |
9536 | ||
9537 | goto unknown; | |
9538 | ||
9539 | default: | |
9540 | goto unknown; | |
9541 | } | |
9542 | ||
9543 | case 'y': | |
9544 | if (name[2] == 's' && | |
9545 | name[3] == 'w' && | |
9546 | name[4] == 'r' && | |
9547 | name[5] == 'i' && | |
9548 | name[6] == 't' && | |
9549 | name[7] == 'e') | |
9550 | { /* syswrite */ | |
9551 | return -KEY_syswrite; | |
9552 | } | |
9553 | ||
9554 | goto unknown; | |
9555 | ||
9556 | default: | |
9557 | goto unknown; | |
9558 | } | |
9559 | ||
9560 | case 't': | |
9561 | if (name[1] == 'r' && | |
9562 | name[2] == 'u' && | |
9563 | name[3] == 'n' && | |
9564 | name[4] == 'c' && | |
9565 | name[5] == 'a' && | |
9566 | name[6] == 't' && | |
9567 | name[7] == 'e') | |
9568 | { /* truncate */ | |
9569 | return -KEY_truncate; | |
9570 | } | |
9571 | ||
9572 | goto unknown; | |
9573 | ||
9574 | default: | |
9575 | goto unknown; | |
9576 | } | |
9577 | ||
9578 | case 9: /* 8 tokens of length 9 */ | |
9579 | switch (name[0]) | |
9580 | { | |
9581 | case 'e': | |
9582 | if (name[1] == 'n' && | |
9583 | name[2] == 'd' && | |
9584 | name[3] == 'n' && | |
9585 | name[4] == 'e' && | |
9586 | name[5] == 't' && | |
9587 | name[6] == 'e' && | |
9588 | name[7] == 'n' && | |
9589 | name[8] == 't') | |
9590 | { /* endnetent */ | |
9591 | return -KEY_endnetent; | |
9592 | } | |
9593 | ||
9594 | goto unknown; | |
9595 | ||
9596 | case 'g': | |
9597 | if (name[1] == 'e' && | |
9598 | name[2] == 't' && | |
9599 | name[3] == 'n' && | |
9600 | name[4] == 'e' && | |
9601 | name[5] == 't' && | |
9602 | name[6] == 'e' && | |
9603 | name[7] == 'n' && | |
9604 | name[8] == 't') | |
9605 | { /* getnetent */ | |
9606 | return -KEY_getnetent; | |
9607 | } | |
9608 | ||
9609 | goto unknown; | |
9610 | ||
9611 | case 'l': | |
9612 | if (name[1] == 'o' && | |
9613 | name[2] == 'c' && | |
9614 | name[3] == 'a' && | |
9615 | name[4] == 'l' && | |
9616 | name[5] == 't' && | |
9617 | name[6] == 'i' && | |
9618 | name[7] == 'm' && | |
9619 | name[8] == 'e') | |
9620 | { /* localtime */ | |
9621 | return -KEY_localtime; | |
9622 | } | |
9623 | ||
9624 | goto unknown; | |
9625 | ||
9626 | case 'p': | |
9627 | if (name[1] == 'r' && | |
9628 | name[2] == 'o' && | |
9629 | name[3] == 't' && | |
9630 | name[4] == 'o' && | |
9631 | name[5] == 't' && | |
9632 | name[6] == 'y' && | |
9633 | name[7] == 'p' && | |
9634 | name[8] == 'e') | |
9635 | { /* prototype */ | |
9636 | return KEY_prototype; | |
9637 | } | |
9638 | ||
9639 | goto unknown; | |
9640 | ||
9641 | case 'q': | |
9642 | if (name[1] == 'u' && | |
9643 | name[2] == 'o' && | |
9644 | name[3] == 't' && | |
9645 | name[4] == 'e' && | |
9646 | name[5] == 'm' && | |
9647 | name[6] == 'e' && | |
9648 | name[7] == 't' && | |
9649 | name[8] == 'a') | |
9650 | { /* quotemeta */ | |
9651 | return -KEY_quotemeta; | |
9652 | } | |
9653 | ||
9654 | goto unknown; | |
9655 | ||
9656 | case 'r': | |
9657 | if (name[1] == 'e' && | |
9658 | name[2] == 'w' && | |
9659 | name[3] == 'i' && | |
9660 | name[4] == 'n' && | |
9661 | name[5] == 'd' && | |
9662 | name[6] == 'd' && | |
9663 | name[7] == 'i' && | |
9664 | name[8] == 'r') | |
9665 | { /* rewinddir */ | |
9666 | return -KEY_rewinddir; | |
9667 | } | |
9668 | ||
9669 | goto unknown; | |
9670 | ||
9671 | case 's': | |
9672 | if (name[1] == 'e' && | |
9673 | name[2] == 't' && | |
9674 | name[3] == 'n' && | |
9675 | name[4] == 'e' && | |
9676 | name[5] == 't' && | |
9677 | name[6] == 'e' && | |
9678 | name[7] == 'n' && | |
9679 | name[8] == 't') | |
9680 | { /* setnetent */ | |
9681 | return -KEY_setnetent; | |
9682 | } | |
9683 | ||
9684 | goto unknown; | |
9685 | ||
9686 | case 'w': | |
9687 | if (name[1] == 'a' && | |
9688 | name[2] == 'n' && | |
9689 | name[3] == 't' && | |
9690 | name[4] == 'a' && | |
9691 | name[5] == 'r' && | |
9692 | name[6] == 'r' && | |
9693 | name[7] == 'a' && | |
9694 | name[8] == 'y') | |
9695 | { /* wantarray */ | |
9696 | return -KEY_wantarray; | |
9697 | } | |
9698 | ||
9699 | goto unknown; | |
9700 | ||
9701 | default: | |
9702 | goto unknown; | |
9703 | } | |
9704 | ||
9705 | case 10: /* 9 tokens of length 10 */ | |
9706 | switch (name[0]) | |
9707 | { | |
9708 | case 'e': | |
9709 | if (name[1] == 'n' && | |
9710 | name[2] == 'd') | |
9711 | { | |
9712 | switch (name[3]) | |
9713 | { | |
9714 | case 'h': | |
9715 | if (name[4] == 'o' && | |
9716 | name[5] == 's' && | |
9717 | name[6] == 't' && | |
9718 | name[7] == 'e' && | |
9719 | name[8] == 'n' && | |
9720 | name[9] == 't') | |
9721 | { /* endhostent */ | |
9722 | return -KEY_endhostent; | |
9723 | } | |
9724 | ||
9725 | goto unknown; | |
9726 | ||
9727 | case 's': | |
9728 | if (name[4] == 'e' && | |
9729 | name[5] == 'r' && | |
9730 | name[6] == 'v' && | |
9731 | name[7] == 'e' && | |
9732 | name[8] == 'n' && | |
9733 | name[9] == 't') | |
9734 | { /* endservent */ | |
9735 | return -KEY_endservent; | |
9736 | } | |
9737 | ||
9738 | goto unknown; | |
9739 | ||
9740 | default: | |
9741 | goto unknown; | |
9742 | } | |
9743 | } | |
9744 | ||
9745 | goto unknown; | |
9746 | ||
9747 | case 'g': | |
9748 | if (name[1] == 'e' && | |
9749 | name[2] == 't') | |
9750 | { | |
9751 | switch (name[3]) | |
9752 | { | |
9753 | case 'h': | |
9754 | if (name[4] == 'o' && | |
9755 | name[5] == 's' && | |
9756 | name[6] == 't' && | |
9757 | name[7] == 'e' && | |
9758 | name[8] == 'n' && | |
9759 | name[9] == 't') | |
9760 | { /* gethostent */ | |
9761 | return -KEY_gethostent; | |
9762 | } | |
9763 | ||
9764 | goto unknown; | |
9765 | ||
9766 | case 's': | |
9767 | switch (name[4]) | |
9768 | { | |
9769 | case 'e': | |
9770 | if (name[5] == 'r' && | |
9771 | name[6] == 'v' && | |
9772 | name[7] == 'e' && | |
9773 | name[8] == 'n' && | |
9774 | name[9] == 't') | |
9775 | { /* getservent */ | |
9776 | return -KEY_getservent; | |
9777 | } | |
9778 | ||
9779 | goto unknown; | |
9780 | ||
9781 | case 'o': | |
9782 | if (name[5] == 'c' && | |
9783 | name[6] == 'k' && | |
9784 | name[7] == 'o' && | |
9785 | name[8] == 'p' && | |
9786 | name[9] == 't') | |
9787 | { /* getsockopt */ | |
9788 | return -KEY_getsockopt; | |
9789 | } | |
9790 | ||
9791 | goto unknown; | |
9792 | ||
9793 | default: | |
9794 | goto unknown; | |
9795 | } | |
9796 | ||
9797 | default: | |
9798 | goto unknown; | |
9799 | } | |
9800 | } | |
9801 | ||
9802 | goto unknown; | |
9803 | ||
9804 | case 's': | |
9805 | switch (name[1]) | |
9806 | { | |
9807 | case 'e': | |
9808 | if (name[2] == 't') | |
9809 | { | |
9810 | switch (name[3]) | |
9811 | { | |
9812 | case 'h': | |
9813 | if (name[4] == 'o' && | |
9814 | name[5] == 's' && | |
9815 | name[6] == 't' && | |
9816 | name[7] == 'e' && | |
9817 | name[8] == 'n' && | |
9818 | name[9] == 't') | |
9819 | { /* sethostent */ | |
9820 | return -KEY_sethostent; | |
9821 | } | |
9822 | ||
9823 | goto unknown; | |
9824 | ||
9825 | case 's': | |
9826 | switch (name[4]) | |
9827 | { | |
9828 | case 'e': | |
9829 | if (name[5] == 'r' && | |
9830 | name[6] == 'v' && | |
9831 | name[7] == 'e' && | |
9832 | name[8] == 'n' && | |
9833 | name[9] == 't') | |
9834 | { /* setservent */ | |
9835 | return -KEY_setservent; | |
9836 | } | |
9837 | ||
9838 | goto unknown; | |
9839 | ||
9840 | case 'o': | |
9841 | if (name[5] == 'c' && | |
9842 | name[6] == 'k' && | |
9843 | name[7] == 'o' && | |
9844 | name[8] == 'p' && | |
9845 | name[9] == 't') | |
9846 | { /* setsockopt */ | |
9847 | return -KEY_setsockopt; | |
9848 | } | |
9849 | ||
9850 | goto unknown; | |
9851 | ||
9852 | default: | |
9853 | goto unknown; | |
9854 | } | |
9855 | ||
9856 | default: | |
9857 | goto unknown; | |
9858 | } | |
9859 | } | |
9860 | ||
9861 | goto unknown; | |
9862 | ||
9863 | case 'o': | |
9864 | if (name[2] == 'c' && | |
9865 | name[3] == 'k' && | |
9866 | name[4] == 'e' && | |
9867 | name[5] == 't' && | |
9868 | name[6] == 'p' && | |
9869 | name[7] == 'a' && | |
9870 | name[8] == 'i' && | |
9871 | name[9] == 'r') | |
9872 | { /* socketpair */ | |
9873 | return -KEY_socketpair; | |
9874 | } | |
9875 | ||
9876 | goto unknown; | |
9877 | ||
9878 | default: | |
9879 | goto unknown; | |
9880 | } | |
9881 | ||
9882 | default: | |
9883 | goto unknown; | |
e2e1dd5a | 9884 | } |
4c3bbe0f MHM |
9885 | |
9886 | case 11: /* 8 tokens of length 11 */ | |
9887 | switch (name[0]) | |
9888 | { | |
9889 | case '_': | |
9890 | if (name[1] == '_' && | |
9891 | name[2] == 'P' && | |
9892 | name[3] == 'A' && | |
9893 | name[4] == 'C' && | |
9894 | name[5] == 'K' && | |
9895 | name[6] == 'A' && | |
9896 | name[7] == 'G' && | |
9897 | name[8] == 'E' && | |
9898 | name[9] == '_' && | |
9899 | name[10] == '_') | |
9900 | { /* __PACKAGE__ */ | |
9901 | return -KEY___PACKAGE__; | |
9902 | } | |
9903 | ||
9904 | goto unknown; | |
9905 | ||
9906 | case 'e': | |
9907 | if (name[1] == 'n' && | |
9908 | name[2] == 'd' && | |
9909 | name[3] == 'p' && | |
9910 | name[4] == 'r' && | |
9911 | name[5] == 'o' && | |
9912 | name[6] == 't' && | |
9913 | name[7] == 'o' && | |
9914 | name[8] == 'e' && | |
9915 | name[9] == 'n' && | |
9916 | name[10] == 't') | |
9917 | { /* endprotoent */ | |
9918 | return -KEY_endprotoent; | |
9919 | } | |
9920 | ||
9921 | goto unknown; | |
9922 | ||
9923 | case 'g': | |
9924 | if (name[1] == 'e' && | |
9925 | name[2] == 't') | |
9926 | { | |
9927 | switch (name[3]) | |
9928 | { | |
9929 | case 'p': | |
9930 | switch (name[4]) | |
9931 | { | |
9932 | case 'e': | |
9933 | if (name[5] == 'e' && | |
9934 | name[6] == 'r' && | |
9935 | name[7] == 'n' && | |
9936 | name[8] == 'a' && | |
9937 | name[9] == 'm' && | |
9938 | name[10] == 'e') | |
9939 | { /* getpeername */ | |
9940 | return -KEY_getpeername; | |
9941 | } | |
9942 | ||
9943 | goto unknown; | |
9944 | ||
9945 | case 'r': | |
9946 | switch (name[5]) | |
9947 | { | |
9948 | case 'i': | |
9949 | if (name[6] == 'o' && | |
9950 | name[7] == 'r' && | |
9951 | name[8] == 'i' && | |
9952 | name[9] == 't' && | |
9953 | name[10] == 'y') | |
9954 | { /* getpriority */ | |
9955 | return -KEY_getpriority; | |
9956 | } | |
9957 | ||
9958 | goto unknown; | |
9959 | ||
9960 | case 'o': | |
9961 | if (name[6] == 't' && | |
9962 | name[7] == 'o' && | |
9963 | name[8] == 'e' && | |
9964 | name[9] == 'n' && | |
9965 | name[10] == 't') | |
9966 | { /* getprotoent */ | |
9967 | return -KEY_getprotoent; | |
9968 | } | |
9969 | ||
9970 | goto unknown; | |
9971 | ||
9972 | default: | |
9973 | goto unknown; | |
9974 | } | |
9975 | ||
9976 | default: | |
9977 | goto unknown; | |
9978 | } | |
9979 | ||
9980 | case 's': | |
9981 | if (name[4] == 'o' && | |
9982 | name[5] == 'c' && | |
9983 | name[6] == 'k' && | |
9984 | name[7] == 'n' && | |
9985 | name[8] == 'a' && | |
9986 | name[9] == 'm' && | |
9987 | name[10] == 'e') | |
9988 | { /* getsockname */ | |
9989 | return -KEY_getsockname; | |
9990 | } | |
9991 | ||
9992 | goto unknown; | |
9993 | ||
9994 | default: | |
9995 | goto unknown; | |
9996 | } | |
9997 | } | |
9998 | ||
9999 | goto unknown; | |
10000 | ||
10001 | case 's': | |
10002 | if (name[1] == 'e' && | |
10003 | name[2] == 't' && | |
10004 | name[3] == 'p' && | |
10005 | name[4] == 'r') | |
10006 | { | |
10007 | switch (name[5]) | |
10008 | { | |
10009 | case 'i': | |
10010 | if (name[6] == 'o' && | |
10011 | name[7] == 'r' && | |
10012 | name[8] == 'i' && | |
10013 | name[9] == 't' && | |
10014 | name[10] == 'y') | |
10015 | { /* setpriority */ | |
10016 | return -KEY_setpriority; | |
10017 | } | |
10018 | ||
10019 | goto unknown; | |
10020 | ||
10021 | case 'o': | |
10022 | if (name[6] == 't' && | |
10023 | name[7] == 'o' && | |
10024 | name[8] == 'e' && | |
10025 | name[9] == 'n' && | |
10026 | name[10] == 't') | |
10027 | { /* setprotoent */ | |
10028 | return -KEY_setprotoent; | |
10029 | } | |
10030 | ||
10031 | goto unknown; | |
10032 | ||
10033 | default: | |
10034 | goto unknown; | |
10035 | } | |
10036 | } | |
10037 | ||
10038 | goto unknown; | |
10039 | ||
10040 | default: | |
10041 | goto unknown; | |
e2e1dd5a | 10042 | } |
4c3bbe0f MHM |
10043 | |
10044 | case 12: /* 2 tokens of length 12 */ | |
10045 | if (name[0] == 'g' && | |
10046 | name[1] == 'e' && | |
10047 | name[2] == 't' && | |
10048 | name[3] == 'n' && | |
10049 | name[4] == 'e' && | |
10050 | name[5] == 't' && | |
10051 | name[6] == 'b' && | |
10052 | name[7] == 'y') | |
10053 | { | |
10054 | switch (name[8]) | |
10055 | { | |
10056 | case 'a': | |
10057 | if (name[9] == 'd' && | |
10058 | name[10] == 'd' && | |
10059 | name[11] == 'r') | |
10060 | { /* getnetbyaddr */ | |
10061 | return -KEY_getnetbyaddr; | |
10062 | } | |
10063 | ||
10064 | goto unknown; | |
10065 | ||
10066 | case 'n': | |
10067 | if (name[9] == 'a' && | |
10068 | name[10] == 'm' && | |
10069 | name[11] == 'e') | |
10070 | { /* getnetbyname */ | |
10071 | return -KEY_getnetbyname; | |
10072 | } | |
10073 | ||
10074 | goto unknown; | |
10075 | ||
10076 | default: | |
10077 | goto unknown; | |
10078 | } | |
e2e1dd5a | 10079 | } |
4c3bbe0f MHM |
10080 | |
10081 | goto unknown; | |
10082 | ||
10083 | case 13: /* 4 tokens of length 13 */ | |
10084 | if (name[0] == 'g' && | |
10085 | name[1] == 'e' && | |
10086 | name[2] == 't') | |
10087 | { | |
10088 | switch (name[3]) | |
10089 | { | |
10090 | case 'h': | |
10091 | if (name[4] == 'o' && | |
10092 | name[5] == 's' && | |
10093 | name[6] == 't' && | |
10094 | name[7] == 'b' && | |
10095 | name[8] == 'y') | |
10096 | { | |
10097 | switch (name[9]) | |
10098 | { | |
10099 | case 'a': | |
10100 | if (name[10] == 'd' && | |
10101 | name[11] == 'd' && | |
10102 | name[12] == 'r') | |
10103 | { /* gethostbyaddr */ | |
10104 | return -KEY_gethostbyaddr; | |
10105 | } | |
10106 | ||
10107 | goto unknown; | |
10108 | ||
10109 | case 'n': | |
10110 | if (name[10] == 'a' && | |
10111 | name[11] == 'm' && | |
10112 | name[12] == 'e') | |
10113 | { /* gethostbyname */ | |
10114 | return -KEY_gethostbyname; | |
10115 | } | |
10116 | ||
10117 | goto unknown; | |
10118 | ||
10119 | default: | |
10120 | goto unknown; | |
10121 | } | |
10122 | } | |
10123 | ||
10124 | goto unknown; | |
10125 | ||
10126 | case 's': | |
10127 | if (name[4] == 'e' && | |
10128 | name[5] == 'r' && | |
10129 | name[6] == 'v' && | |
10130 | name[7] == 'b' && | |
10131 | name[8] == 'y') | |
10132 | { | |
10133 | switch (name[9]) | |
10134 | { | |
10135 | case 'n': | |
10136 | if (name[10] == 'a' && | |
10137 | name[11] == 'm' && | |
10138 | name[12] == 'e') | |
10139 | { /* getservbyname */ | |
10140 | return -KEY_getservbyname; | |
10141 | } | |
10142 | ||
10143 | goto unknown; | |
10144 | ||
10145 | case 'p': | |
10146 | if (name[10] == 'o' && | |
10147 | name[11] == 'r' && | |
10148 | name[12] == 't') | |
10149 | { /* getservbyport */ | |
10150 | return -KEY_getservbyport; | |
10151 | } | |
10152 | ||
10153 | goto unknown; | |
10154 | ||
10155 | default: | |
10156 | goto unknown; | |
10157 | } | |
10158 | } | |
10159 | ||
10160 | goto unknown; | |
10161 | ||
10162 | default: | |
10163 | goto unknown; | |
10164 | } | |
e2e1dd5a | 10165 | } |
4c3bbe0f MHM |
10166 | |
10167 | goto unknown; | |
10168 | ||
10169 | case 14: /* 1 tokens of length 14 */ | |
10170 | if (name[0] == 'g' && | |
10171 | name[1] == 'e' && | |
10172 | name[2] == 't' && | |
10173 | name[3] == 'p' && | |
10174 | name[4] == 'r' && | |
10175 | name[5] == 'o' && | |
10176 | name[6] == 't' && | |
10177 | name[7] == 'o' && | |
10178 | name[8] == 'b' && | |
10179 | name[9] == 'y' && | |
10180 | name[10] == 'n' && | |
10181 | name[11] == 'a' && | |
10182 | name[12] == 'm' && | |
10183 | name[13] == 'e') | |
10184 | { /* getprotobyname */ | |
10185 | return -KEY_getprotobyname; | |
10186 | } | |
10187 | ||
10188 | goto unknown; | |
10189 | ||
10190 | case 16: /* 1 tokens of length 16 */ | |
10191 | if (name[0] == 'g' && | |
10192 | name[1] == 'e' && | |
10193 | name[2] == 't' && | |
10194 | name[3] == 'p' && | |
10195 | name[4] == 'r' && | |
10196 | name[5] == 'o' && | |
10197 | name[6] == 't' && | |
10198 | name[7] == 'o' && | |
10199 | name[8] == 'b' && | |
10200 | name[9] == 'y' && | |
10201 | name[10] == 'n' && | |
10202 | name[11] == 'u' && | |
10203 | name[12] == 'm' && | |
10204 | name[13] == 'b' && | |
10205 | name[14] == 'e' && | |
10206 | name[15] == 'r') | |
10207 | { /* getprotobynumber */ | |
10208 | return -KEY_getprotobynumber; | |
10209 | } | |
10210 | ||
10211 | goto unknown; | |
10212 | ||
10213 | default: | |
10214 | goto unknown; | |
e2e1dd5a | 10215 | } |
4c3bbe0f MHM |
10216 | |
10217 | unknown: | |
e2e1dd5a | 10218 | return 0; |
a687059c LW |
10219 | } |
10220 | ||
76e3520e | 10221 | STATIC void |
c94115d8 | 10222 | S_checkcomma(pTHX_ const char *s, const char *name, const char *what) |
a687059c | 10223 | { |
97aff369 | 10224 | dVAR; |
2f3197b3 | 10225 | |
d008e5eb | 10226 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
10227 | if (ckWARN(WARN_SYNTAX)) { |
10228 | int level = 1; | |
26ff0806 | 10229 | const char *w; |
d008e5eb GS |
10230 | for (w = s+2; *w && level; w++) { |
10231 | if (*w == '(') | |
10232 | ++level; | |
10233 | else if (*w == ')') | |
10234 | --level; | |
10235 | } | |
888fea98 NC |
10236 | while (isSPACE(*w)) |
10237 | ++w; | |
d008e5eb | 10238 | if (!*w || !strchr(";|})]oaiuw!=", *w)) /* an advisory hack only... */ |
9014280d | 10239 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 10240 | "%s (...) interpreted as function",name); |
d008e5eb | 10241 | } |
2f3197b3 | 10242 | } |
3280af22 | 10243 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 10244 | s++; |
a687059c LW |
10245 | if (*s == '(') |
10246 | s++; | |
3280af22 | 10247 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10248 | s++; |
7e2040f0 | 10249 | if (isIDFIRST_lazy_if(s,UTF)) { |
26ff0806 | 10250 | const char * const w = s++; |
7e2040f0 | 10251 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 10252 | s++; |
3280af22 | 10253 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10254 | s++; |
e929a76b | 10255 | if (*s == ',') { |
c94115d8 NC |
10256 | GV* gv; |
10257 | if (keyword(w, s - w)) | |
e929a76b | 10258 | return; |
c94115d8 NC |
10259 | |
10260 | gv = gv_fetchpvn_flags(w, s - w, 0, SVt_PVCV); | |
10261 | if (gv && GvCVu(gv)) | |
abbb3198 | 10262 | return; |
cea2e8a9 | 10263 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
10264 | } |
10265 | } | |
10266 | } | |
10267 | ||
423cee85 JH |
10268 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
10269 | Best used as sv=new_constant(..., sv, ...). | |
10270 | If s, pv are NULL, calls subroutine with one argument, | |
10271 | and type is used with error messages only. */ | |
10272 | ||
b3ac6de7 | 10273 | STATIC SV * |
7fc63493 | 10274 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, SV *sv, SV *pv, |
9b0e499b | 10275 | const char *type) |
b3ac6de7 | 10276 | { |
27da23d5 | 10277 | dVAR; dSP; |
890ce7af | 10278 | HV * const table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 10279 | SV *res; |
b3ac6de7 IZ |
10280 | SV **cvp; |
10281 | SV *cv, *typesv; | |
89e33a05 | 10282 | const char *why1 = "", *why2 = "", *why3 = ""; |
4e553d73 | 10283 | |
f0af216f | 10284 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
10285 | SV *msg; |
10286 | ||
f0af216f | 10287 | why2 = strEQ(key,"charnames") |
41ab332f | 10288 | ? "(possibly a missing \"use charnames ...\")" |
f0af216f | 10289 | : ""; |
4e553d73 | 10290 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
10291 | (type ? type: "undef"), why2); |
10292 | ||
10293 | /* This is convoluted and evil ("goto considered harmful") | |
10294 | * but I do not understand the intricacies of all the different | |
10295 | * failure modes of %^H in here. The goal here is to make | |
10296 | * the most probable error message user-friendly. --jhi */ | |
10297 | ||
10298 | goto msgdone; | |
10299 | ||
423cee85 | 10300 | report: |
4e553d73 | 10301 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 10302 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 10303 | msgdone: |
95a20fc0 | 10304 | yyerror(SvPVX_const(msg)); |
423cee85 JH |
10305 | SvREFCNT_dec(msg); |
10306 | return sv; | |
10307 | } | |
b3ac6de7 IZ |
10308 | cvp = hv_fetch(table, key, strlen(key), FALSE); |
10309 | if (!cvp || !SvOK(*cvp)) { | |
423cee85 JH |
10310 | why1 = "$^H{"; |
10311 | why2 = key; | |
f0af216f | 10312 | why3 = "} is not defined"; |
423cee85 | 10313 | goto report; |
b3ac6de7 IZ |
10314 | } |
10315 | sv_2mortal(sv); /* Parent created it permanently */ | |
10316 | cv = *cvp; | |
423cee85 JH |
10317 | if (!pv && s) |
10318 | pv = sv_2mortal(newSVpvn(s, len)); | |
10319 | if (type && pv) | |
10320 | typesv = sv_2mortal(newSVpv(type, 0)); | |
b3ac6de7 | 10321 | else |
423cee85 | 10322 | typesv = &PL_sv_undef; |
4e553d73 | 10323 | |
e788e7d3 | 10324 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
10325 | ENTER ; |
10326 | SAVETMPS; | |
4e553d73 | 10327 | |
423cee85 | 10328 | PUSHMARK(SP) ; |
a5845cb7 | 10329 | EXTEND(sp, 3); |
423cee85 JH |
10330 | if (pv) |
10331 | PUSHs(pv); | |
b3ac6de7 | 10332 | PUSHs(sv); |
423cee85 JH |
10333 | if (pv) |
10334 | PUSHs(typesv); | |
b3ac6de7 | 10335 | PUTBACK; |
423cee85 | 10336 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 10337 | |
423cee85 | 10338 | SPAGAIN ; |
4e553d73 | 10339 | |
423cee85 | 10340 | /* Check the eval first */ |
9b0e499b | 10341 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
396482e1 | 10342 | sv_catpvs(ERRSV, "Propagated"); |
8b6b16e7 | 10343 | yyerror(SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */ |
e1f15930 | 10344 | (void)POPs; |
b37c2d43 | 10345 | res = SvREFCNT_inc_simple(sv); |
423cee85 JH |
10346 | } |
10347 | else { | |
10348 | res = POPs; | |
b37c2d43 | 10349 | SvREFCNT_inc_simple_void(res); |
423cee85 | 10350 | } |
4e553d73 | 10351 | |
423cee85 JH |
10352 | PUTBACK ; |
10353 | FREETMPS ; | |
10354 | LEAVE ; | |
b3ac6de7 | 10355 | POPSTACK; |
4e553d73 | 10356 | |
b3ac6de7 | 10357 | if (!SvOK(res)) { |
423cee85 JH |
10358 | why1 = "Call to &{$^H{"; |
10359 | why2 = key; | |
f0af216f | 10360 | why3 = "}} did not return a defined value"; |
423cee85 JH |
10361 | sv = res; |
10362 | goto report; | |
9b0e499b | 10363 | } |
423cee85 | 10364 | |
9b0e499b | 10365 | return res; |
b3ac6de7 | 10366 | } |
4e553d73 | 10367 | |
d0a148a6 NC |
10368 | /* Returns a NUL terminated string, with the length of the string written to |
10369 | *slp | |
10370 | */ | |
76e3520e | 10371 | STATIC char * |
cea2e8a9 | 10372 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 | 10373 | { |
97aff369 | 10374 | dVAR; |
463ee0b2 | 10375 | register char *d = dest; |
890ce7af | 10376 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
463ee0b2 | 10377 | for (;;) { |
8903cb82 | 10378 | if (d >= e) |
cea2e8a9 | 10379 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10380 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10381 | *d++ = *s++; |
c35e046a | 10382 | else if (allow_package && (*s == '\'') && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10383 | *d++ = ':'; |
10384 | *d++ = ':'; | |
10385 | s++; | |
10386 | } | |
c35e046a | 10387 | else if (allow_package && (s[0] == ':') && (s[1] == ':') && (s[2] != '$')) { |
463ee0b2 LW |
10388 | *d++ = *s++; |
10389 | *d++ = *s++; | |
10390 | } | |
fd400ab9 | 10391 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10392 | char *t = s + UTF8SKIP(s); |
c35e046a | 10393 | size_t len; |
fd400ab9 | 10394 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 | 10395 | t += UTF8SKIP(t); |
c35e046a AL |
10396 | len = t - s; |
10397 | if (d + len > e) | |
cea2e8a9 | 10398 | Perl_croak(aTHX_ ident_too_long); |
c35e046a AL |
10399 | Copy(s, d, len, char); |
10400 | d += len; | |
a0ed51b3 LW |
10401 | s = t; |
10402 | } | |
463ee0b2 LW |
10403 | else { |
10404 | *d = '\0'; | |
10405 | *slp = d - dest; | |
10406 | return s; | |
e929a76b | 10407 | } |
378cc40b LW |
10408 | } |
10409 | } | |
10410 | ||
76e3520e | 10411 | STATIC char * |
f54cb97a | 10412 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b | 10413 | { |
97aff369 | 10414 | dVAR; |
6136c704 | 10415 | char *bracket = NULL; |
748a9306 | 10416 | char funny = *s++; |
6136c704 AL |
10417 | register char *d = dest; |
10418 | register char * const e = d + destlen + 3; /* two-character token, ending NUL */ | |
378cc40b | 10419 | |
a0d0e21e | 10420 | if (isSPACE(*s)) |
29595ff2 | 10421 | s = PEEKSPACE(s); |
de3bb511 | 10422 | if (isDIGIT(*s)) { |
8903cb82 | 10423 | while (isDIGIT(*s)) { |
10424 | if (d >= e) | |
cea2e8a9 | 10425 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 10426 | *d++ = *s++; |
8903cb82 | 10427 | } |
378cc40b LW |
10428 | } |
10429 | else { | |
463ee0b2 | 10430 | for (;;) { |
8903cb82 | 10431 | if (d >= e) |
cea2e8a9 | 10432 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10433 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10434 | *d++ = *s++; |
7e2040f0 | 10435 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10436 | *d++ = ':'; |
10437 | *d++ = ':'; | |
10438 | s++; | |
10439 | } | |
a0d0e21e | 10440 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
10441 | *d++ = *s++; |
10442 | *d++ = *s++; | |
10443 | } | |
fd400ab9 | 10444 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10445 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 10446 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
10447 | t += UTF8SKIP(t); |
10448 | if (d + (t - s) > e) | |
cea2e8a9 | 10449 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
10450 | Copy(s, d, t - s, char); |
10451 | d += t - s; | |
10452 | s = t; | |
10453 | } | |
463ee0b2 LW |
10454 | else |
10455 | break; | |
10456 | } | |
378cc40b LW |
10457 | } |
10458 | *d = '\0'; | |
10459 | d = dest; | |
79072805 | 10460 | if (*d) { |
3280af22 NIS |
10461 | if (PL_lex_state != LEX_NORMAL) |
10462 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 10463 | return s; |
378cc40b | 10464 | } |
748a9306 | 10465 | if (*s == '$' && s[1] && |
3792a11b | 10466 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 10467 | { |
4810e5ec | 10468 | return s; |
5cd24f17 | 10469 | } |
79072805 LW |
10470 | if (*s == '{') { |
10471 | bracket = s; | |
10472 | s++; | |
10473 | } | |
10474 | else if (ck_uni) | |
10475 | check_uni(); | |
93a17b20 | 10476 | if (s < send) |
79072805 LW |
10477 | *d = *s++; |
10478 | d[1] = '\0'; | |
2b92dfce | 10479 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 10480 | *d = toCTRL(*s); |
10481 | s++; | |
de3bb511 | 10482 | } |
79072805 | 10483 | if (bracket) { |
748a9306 | 10484 | if (isSPACE(s[-1])) { |
fa83b5b6 | 10485 | while (s < send) { |
f54cb97a | 10486 | const char ch = *s++; |
bf4acbe4 | 10487 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 10488 | *d = ch; |
10489 | break; | |
10490 | } | |
10491 | } | |
748a9306 | 10492 | } |
7e2040f0 | 10493 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 10494 | d++; |
a0ed51b3 | 10495 | if (UTF) { |
6136c704 AL |
10496 | char *end = s; |
10497 | while ((end < send && isALNUM_lazy_if(end,UTF)) || *end == ':') { | |
10498 | end += UTF8SKIP(end); | |
10499 | while (end < send && UTF8_IS_CONTINUED(*end) && is_utf8_mark((U8*)end)) | |
10500 | end += UTF8SKIP(end); | |
a0ed51b3 | 10501 | } |
6136c704 AL |
10502 | Copy(s, d, end - s, char); |
10503 | d += end - s; | |
10504 | s = end; | |
a0ed51b3 LW |
10505 | } |
10506 | else { | |
2b92dfce | 10507 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 10508 | *d++ = *s++; |
2b92dfce | 10509 | if (d >= e) |
cea2e8a9 | 10510 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 10511 | } |
79072805 | 10512 | *d = '\0'; |
c35e046a AL |
10513 | while (s < send && SPACE_OR_TAB(*s)) |
10514 | s++; | |
ff68c719 | 10515 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
599cee73 | 10516 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest)) { |
c35e046a | 10517 | const char * const brack = (*s == '[') ? "[...]" : "{...}"; |
9014280d | 10518 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 10519 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
10520 | funny, dest, brack, funny, dest, brack); |
10521 | } | |
79072805 | 10522 | bracket++; |
a0be28da | 10523 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
10524 | return s; |
10525 | } | |
4e553d73 NIS |
10526 | } |
10527 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
10528 | * 1999-02-27 mjd-perl-patch@plover.com */ |
10529 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
10530 | && isALNUM(*s)) | |
10531 | { | |
10532 | d++; | |
10533 | while (isALNUM(*s) && d < e) { | |
10534 | *d++ = *s++; | |
10535 | } | |
10536 | if (d >= e) | |
cea2e8a9 | 10537 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 10538 | *d = '\0'; |
79072805 LW |
10539 | } |
10540 | if (*s == '}') { | |
10541 | s++; | |
7df0d042 | 10542 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 10543 | PL_lex_state = LEX_INTERPEND; |
7df0d042 AE |
10544 | PL_expect = XREF; |
10545 | } | |
d008e5eb | 10546 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 10547 | if (ckWARN(WARN_AMBIGUOUS) && |
864dbfa3 | 10548 | (keyword(dest, d - dest) || get_cv(dest, FALSE))) |
d008e5eb | 10549 | { |
c35e046a AL |
10550 | if (funny == '#') |
10551 | funny = '@'; | |
9014280d | 10552 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
10553 | "Ambiguous use of %c{%s} resolved to %c%s", |
10554 | funny, dest, funny, dest); | |
10555 | } | |
10556 | } | |
79072805 LW |
10557 | } |
10558 | else { | |
10559 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 10560 | *dest = '\0'; |
79072805 LW |
10561 | } |
10562 | } | |
3280af22 NIS |
10563 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
10564 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
10565 | return s; |
10566 | } | |
10567 | ||
cea2e8a9 | 10568 | void |
2b36a5a0 | 10569 | Perl_pmflag(pTHX_ U32* pmfl, int ch) |
a0d0e21e | 10570 | { |
96a5add6 | 10571 | PERL_UNUSED_CONTEXT; |
bbce6d69 | 10572 | if (ch == 'i') |
a0d0e21e | 10573 | *pmfl |= PMf_FOLD; |
a0d0e21e LW |
10574 | else if (ch == 'g') |
10575 | *pmfl |= PMf_GLOBAL; | |
c90c0ff4 | 10576 | else if (ch == 'c') |
10577 | *pmfl |= PMf_CONTINUE; | |
a0d0e21e LW |
10578 | else if (ch == 'o') |
10579 | *pmfl |= PMf_KEEP; | |
10580 | else if (ch == 'm') | |
10581 | *pmfl |= PMf_MULTILINE; | |
10582 | else if (ch == 's') | |
10583 | *pmfl |= PMf_SINGLELINE; | |
10584 | else if (ch == 'x') | |
10585 | *pmfl |= PMf_EXTENDED; | |
10586 | } | |
378cc40b | 10587 | |
76e3520e | 10588 | STATIC char * |
cea2e8a9 | 10589 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 10590 | { |
97aff369 | 10591 | dVAR; |
79072805 | 10592 | PMOP *pm; |
5db06880 | 10593 | char *s = scan_str(start,!!PL_madskills,FALSE); |
6136c704 | 10594 | const char * const valid_flags = (type == OP_QR) ? "iomsx" : "iogcmsx"; |
5db06880 NC |
10595 | #ifdef PERL_MAD |
10596 | char *modstart; | |
10597 | #endif | |
10598 | ||
378cc40b | 10599 | |
25c09cbf | 10600 | if (!s) { |
6136c704 | 10601 | const char * const delimiter = skipspace(start); |
25c09cbf SF |
10602 | Perl_croak(aTHX_ *delimiter == '?' |
10603 | ? "Search pattern not terminated or ternary operator parsed as search pattern" | |
10604 | : "Search pattern not terminated" ); | |
10605 | } | |
bbce6d69 | 10606 | |
8782bef2 | 10607 | pm = (PMOP*)newPMOP(type, 0); |
3280af22 | 10608 | if (PL_multi_open == '?') |
79072805 | 10609 | pm->op_pmflags |= PMf_ONCE; |
5db06880 NC |
10610 | #ifdef PERL_MAD |
10611 | modstart = s; | |
10612 | #endif | |
6136c704 AL |
10613 | while (*s && strchr(valid_flags, *s)) |
10614 | pmflag(&pm->op_pmflags,*s++); | |
5db06880 NC |
10615 | #ifdef PERL_MAD |
10616 | if (PL_madskills && modstart != s) { | |
10617 | SV* tmptoken = newSVpvn(modstart, s - modstart); | |
10618 | append_madprops(newMADPROP('m', MAD_SV, tmptoken, 0), (OP*)pm, 0); | |
10619 | } | |
10620 | #endif | |
4ac733c9 | 10621 | /* issue a warning if /c is specified,but /g is not */ |
041457d9 DM |
10622 | if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL) |
10623 | && ckWARN(WARN_REGEXP)) | |
4ac733c9 | 10624 | { |
0bd48802 | 10625 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless without /g" ); |
4ac733c9 MJD |
10626 | } |
10627 | ||
4633a7c4 | 10628 | pm->op_pmpermflags = pm->op_pmflags; |
bbce6d69 | 10629 | |
3280af22 | 10630 | PL_lex_op = (OP*)pm; |
79072805 | 10631 | yylval.ival = OP_MATCH; |
378cc40b LW |
10632 | return s; |
10633 | } | |
10634 | ||
76e3520e | 10635 | STATIC char * |
cea2e8a9 | 10636 | S_scan_subst(pTHX_ char *start) |
79072805 | 10637 | { |
27da23d5 | 10638 | dVAR; |
a0d0e21e | 10639 | register char *s; |
79072805 | 10640 | register PMOP *pm; |
4fdae800 | 10641 | I32 first_start; |
79072805 | 10642 | I32 es = 0; |
5db06880 NC |
10643 | #ifdef PERL_MAD |
10644 | char *modstart; | |
10645 | #endif | |
79072805 | 10646 | |
79072805 LW |
10647 | yylval.ival = OP_NULL; |
10648 | ||
5db06880 | 10649 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 10650 | |
37fd879b | 10651 | if (!s) |
cea2e8a9 | 10652 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 10653 | |
3280af22 | 10654 | if (s[-1] == PL_multi_open) |
79072805 | 10655 | s--; |
5db06880 NC |
10656 | #ifdef PERL_MAD |
10657 | if (PL_madskills) { | |
cd81e915 NC |
10658 | CURMAD('q', PL_thisopen); |
10659 | CURMAD('_', PL_thiswhite); | |
10660 | CURMAD('E', PL_thisstuff); | |
10661 | CURMAD('Q', PL_thisclose); | |
10662 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
10663 | } |
10664 | #endif | |
79072805 | 10665 | |
3280af22 | 10666 | first_start = PL_multi_start; |
5db06880 | 10667 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 10668 | if (!s) { |
37fd879b | 10669 | if (PL_lex_stuff) { |
3280af22 | 10670 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 10671 | PL_lex_stuff = NULL; |
37fd879b | 10672 | } |
cea2e8a9 | 10673 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 10674 | } |
3280af22 | 10675 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 10676 | |
79072805 | 10677 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
5db06880 NC |
10678 | |
10679 | #ifdef PERL_MAD | |
10680 | if (PL_madskills) { | |
cd81e915 NC |
10681 | CURMAD('z', PL_thisopen); |
10682 | CURMAD('R', PL_thisstuff); | |
10683 | CURMAD('Z', PL_thisclose); | |
5db06880 NC |
10684 | } |
10685 | modstart = s; | |
10686 | #endif | |
10687 | ||
48c036b1 | 10688 | while (*s) { |
a687059c LW |
10689 | if (*s == 'e') { |
10690 | s++; | |
2f3197b3 | 10691 | es++; |
a687059c | 10692 | } |
b3eb6a9b | 10693 | else if (strchr("iogcmsx", *s)) |
a0d0e21e | 10694 | pmflag(&pm->op_pmflags,*s++); |
48c036b1 GS |
10695 | else |
10696 | break; | |
378cc40b | 10697 | } |
79072805 | 10698 | |
5db06880 NC |
10699 | #ifdef PERL_MAD |
10700 | if (PL_madskills) { | |
10701 | if (modstart != s) | |
10702 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
10703 | append_madprops(PL_thismad, (OP*)pm, 0); |
10704 | PL_thismad = 0; | |
5db06880 NC |
10705 | } |
10706 | #endif | |
0bd48802 AL |
10707 | if ((pm->op_pmflags & PMf_CONTINUE) && ckWARN(WARN_REGEXP)) { |
10708 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" ); | |
4ac733c9 MJD |
10709 | } |
10710 | ||
79072805 | 10711 | if (es) { |
6136c704 AL |
10712 | SV * const repl = newSVpvs(""); |
10713 | ||
0244c3a4 GS |
10714 | PL_sublex_info.super_bufptr = s; |
10715 | PL_sublex_info.super_bufend = PL_bufend; | |
10716 | PL_multi_end = 0; | |
79072805 | 10717 | pm->op_pmflags |= PMf_EVAL; |
463ee0b2 | 10718 | while (es-- > 0) |
a0d0e21e | 10719 | sv_catpv(repl, es ? "eval " : "do "); |
6f43d98f | 10720 | sv_catpvs(repl, "{"); |
3280af22 | 10721 | sv_catsv(repl, PL_lex_repl); |
9badc361 RGS |
10722 | if (strchr(SvPVX(PL_lex_repl), '#')) |
10723 | sv_catpvs(repl, "\n"); | |
10724 | sv_catpvs(repl, "}"); | |
25da4f38 | 10725 | SvEVALED_on(repl); |
3280af22 NIS |
10726 | SvREFCNT_dec(PL_lex_repl); |
10727 | PL_lex_repl = repl; | |
378cc40b | 10728 | } |
79072805 | 10729 | |
4633a7c4 | 10730 | pm->op_pmpermflags = pm->op_pmflags; |
3280af22 | 10731 | PL_lex_op = (OP*)pm; |
79072805 | 10732 | yylval.ival = OP_SUBST; |
378cc40b LW |
10733 | return s; |
10734 | } | |
10735 | ||
76e3520e | 10736 | STATIC char * |
cea2e8a9 | 10737 | S_scan_trans(pTHX_ char *start) |
378cc40b | 10738 | { |
97aff369 | 10739 | dVAR; |
a0d0e21e | 10740 | register char* s; |
11343788 | 10741 | OP *o; |
79072805 LW |
10742 | short *tbl; |
10743 | I32 squash; | |
a0ed51b3 | 10744 | I32 del; |
79072805 | 10745 | I32 complement; |
5db06880 NC |
10746 | #ifdef PERL_MAD |
10747 | char *modstart; | |
10748 | #endif | |
79072805 LW |
10749 | |
10750 | yylval.ival = OP_NULL; | |
10751 | ||
5db06880 | 10752 | s = scan_str(start,!!PL_madskills,FALSE); |
37fd879b | 10753 | if (!s) |
cea2e8a9 | 10754 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
5db06880 | 10755 | |
3280af22 | 10756 | if (s[-1] == PL_multi_open) |
2f3197b3 | 10757 | s--; |
5db06880 NC |
10758 | #ifdef PERL_MAD |
10759 | if (PL_madskills) { | |
cd81e915 NC |
10760 | CURMAD('q', PL_thisopen); |
10761 | CURMAD('_', PL_thiswhite); | |
10762 | CURMAD('E', PL_thisstuff); | |
10763 | CURMAD('Q', PL_thisclose); | |
10764 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
10765 | } |
10766 | #endif | |
2f3197b3 | 10767 | |
5db06880 | 10768 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 10769 | if (!s) { |
37fd879b | 10770 | if (PL_lex_stuff) { |
3280af22 | 10771 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 10772 | PL_lex_stuff = NULL; |
37fd879b | 10773 | } |
cea2e8a9 | 10774 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 10775 | } |
5db06880 | 10776 | if (PL_madskills) { |
cd81e915 NC |
10777 | CURMAD('z', PL_thisopen); |
10778 | CURMAD('R', PL_thisstuff); | |
10779 | CURMAD('Z', PL_thisclose); | |
5db06880 | 10780 | } |
79072805 | 10781 | |
a0ed51b3 | 10782 | complement = del = squash = 0; |
5db06880 NC |
10783 | #ifdef PERL_MAD |
10784 | modstart = s; | |
10785 | #endif | |
7a1e2023 NC |
10786 | while (1) { |
10787 | switch (*s) { | |
10788 | case 'c': | |
79072805 | 10789 | complement = OPpTRANS_COMPLEMENT; |
7a1e2023 NC |
10790 | break; |
10791 | case 'd': | |
a0ed51b3 | 10792 | del = OPpTRANS_DELETE; |
7a1e2023 NC |
10793 | break; |
10794 | case 's': | |
79072805 | 10795 | squash = OPpTRANS_SQUASH; |
7a1e2023 NC |
10796 | break; |
10797 | default: | |
10798 | goto no_more; | |
10799 | } | |
395c3793 LW |
10800 | s++; |
10801 | } | |
7a1e2023 | 10802 | no_more: |
8973db79 | 10803 | |
a02a5408 | 10804 | Newx(tbl, complement&&!del?258:256, short); |
8973db79 | 10805 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
59f00321 RGS |
10806 | o->op_private &= ~OPpTRANS_ALL; |
10807 | o->op_private |= del|squash|complement| | |
7948272d NIS |
10808 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| |
10809 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 10810 | |
3280af22 | 10811 | PL_lex_op = o; |
79072805 | 10812 | yylval.ival = OP_TRANS; |
5db06880 NC |
10813 | |
10814 | #ifdef PERL_MAD | |
10815 | if (PL_madskills) { | |
10816 | if (modstart != s) | |
10817 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
10818 | append_madprops(PL_thismad, o, 0); |
10819 | PL_thismad = 0; | |
5db06880 NC |
10820 | } |
10821 | #endif | |
10822 | ||
79072805 LW |
10823 | return s; |
10824 | } | |
10825 | ||
76e3520e | 10826 | STATIC char * |
cea2e8a9 | 10827 | S_scan_heredoc(pTHX_ register char *s) |
79072805 | 10828 | { |
97aff369 | 10829 | dVAR; |
79072805 LW |
10830 | SV *herewas; |
10831 | I32 op_type = OP_SCALAR; | |
10832 | I32 len; | |
10833 | SV *tmpstr; | |
10834 | char term; | |
73d840c0 | 10835 | const char *found_newline; |
79072805 | 10836 | register char *d; |
fc36a67e | 10837 | register char *e; |
4633a7c4 | 10838 | char *peek; |
f54cb97a | 10839 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
5db06880 NC |
10840 | #ifdef PERL_MAD |
10841 | I32 stuffstart = s - SvPVX(PL_linestr); | |
10842 | char *tstart; | |
10843 | ||
cd81e915 | 10844 | PL_realtokenstart = -1; |
5db06880 | 10845 | #endif |
79072805 LW |
10846 | |
10847 | s += 2; | |
3280af22 NIS |
10848 | d = PL_tokenbuf; |
10849 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 10850 | if (!outer) |
79072805 | 10851 | *d++ = '\n'; |
c35e046a AL |
10852 | peek = s; |
10853 | while (SPACE_OR_TAB(*peek)) | |
10854 | peek++; | |
3792a11b | 10855 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 10856 | s = peek; |
79072805 | 10857 | term = *s++; |
3280af22 | 10858 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 10859 | d += len; |
3280af22 | 10860 | if (s < PL_bufend) |
79072805 | 10861 | s++; |
79072805 LW |
10862 | } |
10863 | else { | |
10864 | if (*s == '\\') | |
10865 | s++, term = '\''; | |
10866 | else | |
10867 | term = '"'; | |
7e2040f0 | 10868 | if (!isALNUM_lazy_if(s,UTF)) |
12bcd1a6 | 10869 | deprecate_old("bare << to mean <<\"\""); |
7e2040f0 | 10870 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 10871 | if (d < e) |
10872 | *d++ = *s; | |
10873 | } | |
10874 | } | |
3280af22 | 10875 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 10876 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
10877 | *d++ = '\n'; |
10878 | *d = '\0'; | |
3280af22 | 10879 | len = d - PL_tokenbuf; |
5db06880 NC |
10880 | |
10881 | #ifdef PERL_MAD | |
10882 | if (PL_madskills) { | |
10883 | tstart = PL_tokenbuf + !outer; | |
cd81e915 | 10884 | PL_thisclose = newSVpvn(tstart, len - !outer); |
5db06880 | 10885 | tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 | 10886 | PL_thisopen = newSVpvn(tstart, s - tstart); |
5db06880 NC |
10887 | stuffstart = s - SvPVX(PL_linestr); |
10888 | } | |
10889 | #endif | |
6a27c188 | 10890 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
10891 | d = strchr(s, '\r'); |
10892 | if (d) { | |
b464bac0 | 10893 | char * const olds = s; |
f63a84b2 | 10894 | s = d; |
3280af22 | 10895 | while (s < PL_bufend) { |
f63a84b2 LW |
10896 | if (*s == '\r') { |
10897 | *d++ = '\n'; | |
10898 | if (*++s == '\n') | |
10899 | s++; | |
10900 | } | |
10901 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
10902 | *d++ = *s++; | |
10903 | s++; | |
10904 | } | |
10905 | else | |
10906 | *d++ = *s++; | |
10907 | } | |
10908 | *d = '\0'; | |
3280af22 | 10909 | PL_bufend = d; |
95a20fc0 | 10910 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
10911 | s = olds; |
10912 | } | |
10913 | #endif | |
5db06880 NC |
10914 | #ifdef PERL_MAD |
10915 | found_newline = 0; | |
10916 | #endif | |
e81b0615 | 10917 | if ( outer || !(found_newline = memchr(s, '\n', PL_bufend - s)) ) { |
73d840c0 AL |
10918 | herewas = newSVpvn(s,PL_bufend-s); |
10919 | } | |
10920 | else { | |
5db06880 NC |
10921 | #ifdef PERL_MAD |
10922 | herewas = newSVpvn(s-1,found_newline-s+1); | |
10923 | #else | |
73d840c0 AL |
10924 | s--; |
10925 | herewas = newSVpvn(s,found_newline-s); | |
5db06880 | 10926 | #endif |
73d840c0 | 10927 | } |
5db06880 NC |
10928 | #ifdef PERL_MAD |
10929 | if (PL_madskills) { | |
10930 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
10931 | if (PL_thisstuff) |
10932 | sv_catpvn(PL_thisstuff, tstart, s - tstart); | |
5db06880 | 10933 | else |
cd81e915 | 10934 | PL_thisstuff = newSVpvn(tstart, s - tstart); |
5db06880 NC |
10935 | } |
10936 | #endif | |
79072805 | 10937 | s += SvCUR(herewas); |
748a9306 | 10938 | |
5db06880 NC |
10939 | #ifdef PERL_MAD |
10940 | stuffstart = s - SvPVX(PL_linestr); | |
10941 | ||
10942 | if (found_newline) | |
10943 | s--; | |
10944 | #endif | |
10945 | ||
561b68a9 | 10946 | tmpstr = newSV(79); |
748a9306 LW |
10947 | sv_upgrade(tmpstr, SVt_PVIV); |
10948 | if (term == '\'') { | |
79072805 | 10949 | op_type = OP_CONST; |
45977657 | 10950 | SvIV_set(tmpstr, -1); |
748a9306 LW |
10951 | } |
10952 | else if (term == '`') { | |
79072805 | 10953 | op_type = OP_BACKTICK; |
45977657 | 10954 | SvIV_set(tmpstr, '\\'); |
748a9306 | 10955 | } |
79072805 LW |
10956 | |
10957 | CLINE; | |
57843af0 | 10958 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
10959 | PL_multi_open = PL_multi_close = '<'; |
10960 | term = *PL_tokenbuf; | |
0244c3a4 | 10961 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
6136c704 AL |
10962 | char * const bufptr = PL_sublex_info.super_bufptr; |
10963 | char * const bufend = PL_sublex_info.super_bufend; | |
b464bac0 | 10964 | char * const olds = s - SvCUR(herewas); |
0244c3a4 GS |
10965 | s = strchr(bufptr, '\n'); |
10966 | if (!s) | |
10967 | s = bufend; | |
10968 | d = s; | |
10969 | while (s < bufend && | |
10970 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
10971 | if (*s++ == '\n') | |
57843af0 | 10972 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
10973 | } |
10974 | if (s >= bufend) { | |
eb160463 | 10975 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
10976 | missingterm(PL_tokenbuf); |
10977 | } | |
10978 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
10979 | sv_setpvn(tmpstr,d+1,s-d); | |
10980 | s += len - 1; | |
10981 | sv_catpvn(herewas,s,bufend-s); | |
95a20fc0 | 10982 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
10983 | |
10984 | s = olds; | |
10985 | goto retval; | |
10986 | } | |
10987 | else if (!outer) { | |
79072805 | 10988 | d = s; |
3280af22 NIS |
10989 | while (s < PL_bufend && |
10990 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 10991 | if (*s++ == '\n') |
57843af0 | 10992 | CopLINE_inc(PL_curcop); |
79072805 | 10993 | } |
3280af22 | 10994 | if (s >= PL_bufend) { |
eb160463 | 10995 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 10996 | missingterm(PL_tokenbuf); |
79072805 LW |
10997 | } |
10998 | sv_setpvn(tmpstr,d+1,s-d); | |
5db06880 NC |
10999 | #ifdef PERL_MAD |
11000 | if (PL_madskills) { | |
cd81e915 NC |
11001 | if (PL_thisstuff) |
11002 | sv_catpvn(PL_thisstuff, d + 1, s - d); | |
5db06880 | 11003 | else |
cd81e915 | 11004 | PL_thisstuff = newSVpvn(d + 1, s - d); |
5db06880 NC |
11005 | stuffstart = s - SvPVX(PL_linestr); |
11006 | } | |
11007 | #endif | |
79072805 | 11008 | s += len - 1; |
57843af0 | 11009 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 11010 | |
3280af22 NIS |
11011 | sv_catpvn(herewas,s,PL_bufend-s); |
11012 | sv_setsv(PL_linestr,herewas); | |
11013 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
11014 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11015 | PL_last_lop = PL_last_uni = NULL; |
79072805 LW |
11016 | } |
11017 | else | |
11018 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
3280af22 | 11019 | while (s >= PL_bufend) { /* multiple line string? */ |
5db06880 NC |
11020 | #ifdef PERL_MAD |
11021 | if (PL_madskills) { | |
11022 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11023 | if (PL_thisstuff) |
11024 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11025 | else |
cd81e915 | 11026 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11027 | } |
11028 | #endif | |
fd2d0953 | 11029 | if (!outer || |
3280af22 | 11030 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { |
eb160463 | 11031 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11032 | missingterm(PL_tokenbuf); |
79072805 | 11033 | } |
5db06880 NC |
11034 | #ifdef PERL_MAD |
11035 | stuffstart = s - SvPVX(PL_linestr); | |
11036 | #endif | |
57843af0 | 11037 | CopLINE_inc(PL_curcop); |
3280af22 | 11038 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 11039 | PL_last_lop = PL_last_uni = NULL; |
6a27c188 | 11040 | #ifndef PERL_STRICT_CR |
3280af22 | 11041 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
11042 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
11043 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 11044 | { |
3280af22 NIS |
11045 | PL_bufend[-2] = '\n'; |
11046 | PL_bufend--; | |
95a20fc0 | 11047 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 11048 | } |
3280af22 NIS |
11049 | else if (PL_bufend[-1] == '\r') |
11050 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11051 | } |
3280af22 NIS |
11052 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
11053 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11054 | #endif |
3280af22 | 11055 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
561b68a9 | 11056 | SV * const sv = newSV(0); |
79072805 | 11057 | |
93a17b20 | 11058 | sv_upgrade(sv, SVt_PVMG); |
3280af22 | 11059 | sv_setsv(sv,PL_linestr); |
0ac0412a | 11060 | (void)SvIOK_on(sv); |
45977657 | 11061 | SvIV_set(sv, 0); |
36c7798d | 11062 | av_store(CopFILEAVx(PL_curcop), (I32)CopLINE(PL_curcop),sv); |
79072805 | 11063 | } |
3280af22 | 11064 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
95a20fc0 | 11065 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
1de9afcd | 11066 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
11067 | sv_catsv(PL_linestr,herewas); |
11068 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
1de9afcd | 11069 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
11070 | } |
11071 | else { | |
3280af22 NIS |
11072 | s = PL_bufend; |
11073 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
11074 | } |
11075 | } | |
79072805 | 11076 | s++; |
0244c3a4 | 11077 | retval: |
57843af0 | 11078 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 11079 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
1da4ca5f | 11080 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 11081 | } |
8990e307 | 11082 | SvREFCNT_dec(herewas); |
2f31ce75 | 11083 | if (!IN_BYTES) { |
95a20fc0 | 11084 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
2f31ce75 JH |
11085 | SvUTF8_on(tmpstr); |
11086 | else if (PL_encoding) | |
11087 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
11088 | } | |
3280af22 | 11089 | PL_lex_stuff = tmpstr; |
79072805 LW |
11090 | yylval.ival = op_type; |
11091 | return s; | |
11092 | } | |
11093 | ||
02aa26ce NT |
11094 | /* scan_inputsymbol |
11095 | takes: current position in input buffer | |
11096 | returns: new position in input buffer | |
11097 | side-effects: yylval and lex_op are set. | |
11098 | ||
11099 | This code handles: | |
11100 | ||
11101 | <> read from ARGV | |
11102 | <FH> read from filehandle | |
11103 | <pkg::FH> read from package qualified filehandle | |
11104 | <pkg'FH> read from package qualified filehandle | |
11105 | <$fh> read from filehandle in $fh | |
11106 | <*.h> filename glob | |
11107 | ||
11108 | */ | |
11109 | ||
76e3520e | 11110 | STATIC char * |
cea2e8a9 | 11111 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 11112 | { |
97aff369 | 11113 | dVAR; |
02aa26ce | 11114 | register char *s = start; /* current position in buffer */ |
1b420867 | 11115 | char *end; |
79072805 LW |
11116 | I32 len; |
11117 | ||
6136c704 AL |
11118 | char *d = PL_tokenbuf; /* start of temp holding space */ |
11119 | const char * const e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
11120 | ||
1b420867 GS |
11121 | end = strchr(s, '\n'); |
11122 | if (!end) | |
11123 | end = PL_bufend; | |
11124 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
11125 | |
11126 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 11127 | or if it didn't end, or if we see a newline |
02aa26ce NT |
11128 | */ |
11129 | ||
bb7a0f54 | 11130 | if (len >= (I32)sizeof PL_tokenbuf) |
cea2e8a9 | 11131 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 11132 | if (s >= end) |
cea2e8a9 | 11133 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 11134 | |
fc36a67e | 11135 | s++; |
02aa26ce NT |
11136 | |
11137 | /* check for <$fh> | |
11138 | Remember, only scalar variables are interpreted as filehandles by | |
11139 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
11140 | treated as a glob() call. | |
11141 | This code makes use of the fact that except for the $ at the front, | |
11142 | a scalar variable and a filehandle look the same. | |
11143 | */ | |
4633a7c4 | 11144 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
11145 | |
11146 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 11147 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 11148 | d++; |
02aa26ce NT |
11149 | |
11150 | /* If we've tried to read what we allow filehandles to look like, and | |
11151 | there's still text left, then it must be a glob() and not a getline. | |
11152 | Use scan_str to pull out the stuff between the <> and treat it | |
11153 | as nothing more than a string. | |
11154 | */ | |
11155 | ||
3280af22 | 11156 | if (d - PL_tokenbuf != len) { |
79072805 LW |
11157 | yylval.ival = OP_GLOB; |
11158 | set_csh(); | |
5db06880 | 11159 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 11160 | if (!s) |
cea2e8a9 | 11161 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
11162 | return s; |
11163 | } | |
395c3793 | 11164 | else { |
9b3023bc | 11165 | bool readline_overriden = FALSE; |
6136c704 | 11166 | GV *gv_readline; |
9b3023bc | 11167 | GV **gvp; |
02aa26ce | 11168 | /* we're in a filehandle read situation */ |
3280af22 | 11169 | d = PL_tokenbuf; |
02aa26ce NT |
11170 | |
11171 | /* turn <> into <ARGV> */ | |
79072805 | 11172 | if (!len) |
689badd5 | 11173 | Copy("ARGV",d,5,char); |
02aa26ce | 11174 | |
9b3023bc | 11175 | /* Check whether readline() is overriden */ |
fafc274c | 11176 | gv_readline = gv_fetchpvs("readline", GV_NOTQUAL, SVt_PVCV); |
6136c704 | 11177 | if ((gv_readline |
ba979b31 | 11178 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) |
9b3023bc | 11179 | || |
017a3ce5 | 11180 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE)) |
9b3023bc | 11181 | && (gv_readline = *gvp) != (GV*)&PL_sv_undef |
ba979b31 | 11182 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
11183 | readline_overriden = TRUE; |
11184 | ||
02aa26ce NT |
11185 | /* if <$fh>, create the ops to turn the variable into a |
11186 | filehandle | |
11187 | */ | |
79072805 | 11188 | if (*d == '$') { |
02aa26ce NT |
11189 | /* try to find it in the pad for this block, otherwise find |
11190 | add symbol table ops | |
11191 | */ | |
bbd11bfc AL |
11192 | const PADOFFSET tmp = pad_findmy(d); |
11193 | if (tmp != NOT_IN_PAD) { | |
00b1698f | 11194 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
6136c704 AL |
11195 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
11196 | HEK * const stashname = HvNAME_HEK(stash); | |
11197 | SV * const sym = sv_2mortal(newSVhek(stashname)); | |
396482e1 | 11198 | sv_catpvs(sym, "::"); |
f558d5af JH |
11199 | sv_catpv(sym, d+1); |
11200 | d = SvPVX(sym); | |
11201 | goto intro_sym; | |
11202 | } | |
11203 | else { | |
6136c704 | 11204 | OP * const o = newOP(OP_PADSV, 0); |
f558d5af | 11205 | o->op_targ = tmp; |
9b3023bc RGS |
11206 | PL_lex_op = readline_overriden |
11207 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11208 | append_elem(OP_LIST, o, | |
11209 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
11210 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 11211 | } |
a0d0e21e LW |
11212 | } |
11213 | else { | |
f558d5af JH |
11214 | GV *gv; |
11215 | ++d; | |
11216 | intro_sym: | |
11217 | gv = gv_fetchpv(d, | |
11218 | (PL_in_eval | |
11219 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 11220 | : GV_ADDMULTI), |
f558d5af | 11221 | SVt_PV); |
9b3023bc RGS |
11222 | PL_lex_op = readline_overriden |
11223 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11224 | append_elem(OP_LIST, | |
11225 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
11226 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11227 | : (OP*)newUNOP(OP_READLINE, 0, | |
11228 | newUNOP(OP_RV2SV, 0, | |
11229 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 11230 | } |
7c6fadd6 RGS |
11231 | if (!readline_overriden) |
11232 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
f5284f61 | 11233 | /* we created the ops in PL_lex_op, so make yylval.ival a null op */ |
79072805 LW |
11234 | yylval.ival = OP_NULL; |
11235 | } | |
02aa26ce NT |
11236 | |
11237 | /* If it's none of the above, it must be a literal filehandle | |
11238 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 11239 | else { |
6136c704 | 11240 | GV * const gv = gv_fetchpv(d, GV_ADD, SVt_PVIO); |
9b3023bc RGS |
11241 | PL_lex_op = readline_overriden |
11242 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11243 | append_elem(OP_LIST, | |
11244 | newGVOP(OP_GV, 0, gv), | |
11245 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11246 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
79072805 LW |
11247 | yylval.ival = OP_NULL; |
11248 | } | |
11249 | } | |
02aa26ce | 11250 | |
79072805 LW |
11251 | return s; |
11252 | } | |
11253 | ||
02aa26ce NT |
11254 | |
11255 | /* scan_str | |
11256 | takes: start position in buffer | |
09bef843 SB |
11257 | keep_quoted preserve \ on the embedded delimiter(s) |
11258 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
11259 | returns: position to continue reading from buffer |
11260 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
11261 | updates the read buffer. | |
11262 | ||
11263 | This subroutine pulls a string out of the input. It is called for: | |
11264 | q single quotes q(literal text) | |
11265 | ' single quotes 'literal text' | |
11266 | qq double quotes qq(interpolate $here please) | |
11267 | " double quotes "interpolate $here please" | |
11268 | qx backticks qx(/bin/ls -l) | |
11269 | ` backticks `/bin/ls -l` | |
11270 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
11271 | m// regexp match m/this/ | |
11272 | s/// regexp substitute s/this/that/ | |
11273 | tr/// string transliterate tr/this/that/ | |
11274 | y/// string transliterate y/this/that/ | |
11275 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 11276 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
11277 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
11278 | ||
11279 | In most of these cases (all but <>, patterns and transliterate) | |
11280 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
11281 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
11282 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
11283 | calls scan_str(). | |
4e553d73 | 11284 | |
02aa26ce NT |
11285 | It skips whitespace before the string starts, and treats the first |
11286 | character as the delimiter. If the delimiter is one of ([{< then | |
11287 | the corresponding "close" character )]}> is used as the closing | |
11288 | delimiter. It allows quoting of delimiters, and if the string has | |
11289 | balanced delimiters ([{<>}]) it allows nesting. | |
11290 | ||
37fd879b HS |
11291 | On success, the SV with the resulting string is put into lex_stuff or, |
11292 | if that is already non-NULL, into lex_repl. The second case occurs only | |
11293 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
11294 | For convenience, the terminating delimiter character is stuffed into | |
11295 | SvIVX of the SV. | |
02aa26ce NT |
11296 | */ |
11297 | ||
76e3520e | 11298 | STATIC char * |
09bef843 | 11299 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 11300 | { |
97aff369 | 11301 | dVAR; |
02aa26ce NT |
11302 | SV *sv; /* scalar value: string */ |
11303 | char *tmps; /* temp string, used for delimiter matching */ | |
11304 | register char *s = start; /* current position in the buffer */ | |
11305 | register char term; /* terminating character */ | |
11306 | register char *to; /* current position in the sv's data */ | |
11307 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 11308 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
220e2d4e | 11309 | I32 termcode; /* terminating char. code */ |
89ebb4a3 | 11310 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
220e2d4e IH |
11311 | STRLEN termlen; /* length of terminating string */ |
11312 | char *last = NULL; /* last position for nesting bracket */ | |
5db06880 NC |
11313 | #ifdef PERL_MAD |
11314 | int stuffstart; | |
11315 | char *tstart; | |
11316 | #endif | |
02aa26ce NT |
11317 | |
11318 | /* skip space before the delimiter */ | |
29595ff2 NC |
11319 | if (isSPACE(*s)) { |
11320 | s = PEEKSPACE(s); | |
11321 | } | |
02aa26ce | 11322 | |
5db06880 | 11323 | #ifdef PERL_MAD |
cd81e915 NC |
11324 | if (PL_realtokenstart >= 0) { |
11325 | stuffstart = PL_realtokenstart; | |
11326 | PL_realtokenstart = -1; | |
5db06880 NC |
11327 | } |
11328 | else | |
11329 | stuffstart = start - SvPVX(PL_linestr); | |
11330 | #endif | |
02aa26ce | 11331 | /* mark where we are, in case we need to report errors */ |
79072805 | 11332 | CLINE; |
02aa26ce NT |
11333 | |
11334 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 11335 | term = *s; |
220e2d4e IH |
11336 | if (!UTF) { |
11337 | termcode = termstr[0] = term; | |
11338 | termlen = 1; | |
11339 | } | |
11340 | else { | |
f3b9ce0f | 11341 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
220e2d4e IH |
11342 | Copy(s, termstr, termlen, U8); |
11343 | if (!UTF8_IS_INVARIANT(term)) | |
11344 | has_utf8 = TRUE; | |
11345 | } | |
b1c7b182 | 11346 | |
02aa26ce | 11347 | /* mark where we are */ |
57843af0 | 11348 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 11349 | PL_multi_open = term; |
02aa26ce NT |
11350 | |
11351 | /* find corresponding closing delimiter */ | |
93a17b20 | 11352 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
220e2d4e IH |
11353 | termcode = termstr[0] = term = tmps[5]; |
11354 | ||
3280af22 | 11355 | PL_multi_close = term; |
79072805 | 11356 | |
561b68a9 SH |
11357 | /* create a new SV to hold the contents. 79 is the SV's initial length. |
11358 | What a random number. */ | |
11359 | sv = newSV(79); | |
ed6116ce | 11360 | sv_upgrade(sv, SVt_PVIV); |
45977657 | 11361 | SvIV_set(sv, termcode); |
a0d0e21e | 11362 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
11363 | |
11364 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 11365 | if (keep_delims) |
220e2d4e IH |
11366 | sv_catpvn(sv, s, termlen); |
11367 | s += termlen; | |
5db06880 NC |
11368 | #ifdef PERL_MAD |
11369 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11370 | if (!PL_thisopen && !keep_delims) { |
11371 | PL_thisopen = newSVpvn(tstart, s - tstart); | |
5db06880 NC |
11372 | stuffstart = s - SvPVX(PL_linestr); |
11373 | } | |
11374 | #endif | |
93a17b20 | 11375 | for (;;) { |
220e2d4e IH |
11376 | if (PL_encoding && !UTF) { |
11377 | bool cont = TRUE; | |
11378 | ||
11379 | while (cont) { | |
95a20fc0 | 11380 | int offset = s - SvPVX_const(PL_linestr); |
66a1b24b | 11381 | const bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f3b9ce0f | 11382 | &offset, (char*)termstr, termlen); |
6136c704 AL |
11383 | const char * const ns = SvPVX_const(PL_linestr) + offset; |
11384 | char * const svlast = SvEND(sv) - 1; | |
220e2d4e IH |
11385 | |
11386 | for (; s < ns; s++) { | |
11387 | if (*s == '\n' && !PL_rsfp) | |
11388 | CopLINE_inc(PL_curcop); | |
11389 | } | |
11390 | if (!found) | |
11391 | goto read_more_line; | |
11392 | else { | |
11393 | /* handle quoted delimiters */ | |
52327caf | 11394 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
f54cb97a | 11395 | const char *t; |
95a20fc0 | 11396 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
220e2d4e IH |
11397 | t--; |
11398 | if ((svlast-1 - t) % 2) { | |
11399 | if (!keep_quoted) { | |
11400 | *(svlast-1) = term; | |
11401 | *svlast = '\0'; | |
11402 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11403 | } | |
11404 | continue; | |
11405 | } | |
11406 | } | |
11407 | if (PL_multi_open == PL_multi_close) { | |
11408 | cont = FALSE; | |
11409 | } | |
11410 | else { | |
f54cb97a AL |
11411 | const char *t; |
11412 | char *w; | |
220e2d4e IH |
11413 | if (!last) |
11414 | last = SvPVX(sv); | |
f54cb97a | 11415 | for (t = w = last; t < svlast; w++, t++) { |
220e2d4e IH |
11416 | /* At here, all closes are "was quoted" one, |
11417 | so we don't check PL_multi_close. */ | |
11418 | if (*t == '\\') { | |
11419 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
11420 | t++; | |
11421 | else | |
11422 | *w++ = *t++; | |
11423 | } | |
11424 | else if (*t == PL_multi_open) | |
11425 | brackets++; | |
11426 | ||
11427 | *w = *t; | |
11428 | } | |
11429 | if (w < t) { | |
11430 | *w++ = term; | |
11431 | *w = '\0'; | |
95a20fc0 | 11432 | SvCUR_set(sv, w - SvPVX_const(sv)); |
220e2d4e IH |
11433 | } |
11434 | last = w; | |
11435 | if (--brackets <= 0) | |
11436 | cont = FALSE; | |
11437 | } | |
11438 | } | |
11439 | } | |
11440 | if (!keep_delims) { | |
11441 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11442 | *SvEND(sv) = '\0'; | |
11443 | } | |
11444 | break; | |
11445 | } | |
11446 | ||
02aa26ce | 11447 | /* extend sv if need be */ |
3280af22 | 11448 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 11449 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 11450 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 11451 | |
02aa26ce | 11452 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
11453 | if (PL_multi_open == PL_multi_close) { |
11454 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 11455 | /* embedded newlines increment the current line number */ |
3280af22 | 11456 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11457 | CopLINE_inc(PL_curcop); |
02aa26ce | 11458 | /* handle quoted delimiters */ |
3280af22 | 11459 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 11460 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 11461 | s++; |
02aa26ce | 11462 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
11463 | else |
11464 | *to++ = *s++; | |
11465 | } | |
02aa26ce NT |
11466 | /* terminate when run out of buffer (the for() condition), or |
11467 | have found the terminator */ | |
220e2d4e IH |
11468 | else if (*s == term) { |
11469 | if (termlen == 1) | |
11470 | break; | |
f3b9ce0f | 11471 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
220e2d4e IH |
11472 | break; |
11473 | } | |
63cd0674 | 11474 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11475 | has_utf8 = TRUE; |
93a17b20 LW |
11476 | *to = *s; |
11477 | } | |
11478 | } | |
02aa26ce NT |
11479 | |
11480 | /* if the terminator isn't the same as the start character (e.g., | |
11481 | matched brackets), we have to allow more in the quoting, and | |
11482 | be prepared for nested brackets. | |
11483 | */ | |
93a17b20 | 11484 | else { |
02aa26ce | 11485 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 11486 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 11487 | /* embedded newlines increment the line count */ |
3280af22 | 11488 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11489 | CopLINE_inc(PL_curcop); |
02aa26ce | 11490 | /* backslashes can escape the open or closing characters */ |
3280af22 | 11491 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
11492 | if (!keep_quoted && |
11493 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
11494 | s++; |
11495 | else | |
11496 | *to++ = *s++; | |
11497 | } | |
02aa26ce | 11498 | /* allow nested opens and closes */ |
3280af22 | 11499 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 11500 | break; |
3280af22 | 11501 | else if (*s == PL_multi_open) |
93a17b20 | 11502 | brackets++; |
63cd0674 | 11503 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11504 | has_utf8 = TRUE; |
93a17b20 LW |
11505 | *to = *s; |
11506 | } | |
11507 | } | |
02aa26ce | 11508 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 11509 | *to = '\0'; |
95a20fc0 | 11510 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 11511 | |
02aa26ce NT |
11512 | /* |
11513 | * this next chunk reads more into the buffer if we're not done yet | |
11514 | */ | |
11515 | ||
b1c7b182 GS |
11516 | if (s < PL_bufend) |
11517 | break; /* handle case where we are done yet :-) */ | |
79072805 | 11518 | |
6a27c188 | 11519 | #ifndef PERL_STRICT_CR |
95a20fc0 | 11520 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
11521 | if ((to[-2] == '\r' && to[-1] == '\n') || |
11522 | (to[-2] == '\n' && to[-1] == '\r')) | |
11523 | { | |
f63a84b2 LW |
11524 | to[-2] = '\n'; |
11525 | to--; | |
95a20fc0 | 11526 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
11527 | } |
11528 | else if (to[-1] == '\r') | |
11529 | to[-1] = '\n'; | |
11530 | } | |
95a20fc0 | 11531 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
11532 | to[-1] = '\n'; |
11533 | #endif | |
11534 | ||
220e2d4e | 11535 | read_more_line: |
02aa26ce NT |
11536 | /* if we're out of file, or a read fails, bail and reset the current |
11537 | line marker so we can report where the unterminated string began | |
11538 | */ | |
5db06880 NC |
11539 | #ifdef PERL_MAD |
11540 | if (PL_madskills) { | |
c35e046a | 11541 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 NC |
11542 | if (PL_thisstuff) |
11543 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11544 | else |
cd81e915 | 11545 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11546 | } |
11547 | #endif | |
3280af22 NIS |
11548 | if (!PL_rsfp || |
11549 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { | |
c07a80fd | 11550 | sv_free(sv); |
eb160463 | 11551 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
bd61b366 | 11552 | return NULL; |
79072805 | 11553 | } |
5db06880 NC |
11554 | #ifdef PERL_MAD |
11555 | stuffstart = 0; | |
11556 | #endif | |
02aa26ce | 11557 | /* we read a line, so increment our line counter */ |
57843af0 | 11558 | CopLINE_inc(PL_curcop); |
a0ed51b3 | 11559 | |
02aa26ce | 11560 | /* update debugger info */ |
3280af22 | 11561 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
5f66b61c | 11562 | SV * const line_sv = newSV(0); |
79072805 | 11563 | |
5f66b61c AL |
11564 | sv_upgrade(line_sv, SVt_PVMG); |
11565 | sv_setsv(line_sv,PL_linestr); | |
11566 | (void)SvIOK_on(line_sv); | |
11567 | SvIV_set(line_sv, 0); | |
11568 | av_store(CopFILEAVx(PL_curcop), (I32)CopLINE(PL_curcop), line_sv); | |
395c3793 | 11569 | } |
a0ed51b3 | 11570 | |
3280af22 NIS |
11571 | /* having changed the buffer, we must update PL_bufend */ |
11572 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11573 | PL_last_lop = PL_last_uni = NULL; |
378cc40b | 11574 | } |
4e553d73 | 11575 | |
02aa26ce NT |
11576 | /* at this point, we have successfully read the delimited string */ |
11577 | ||
220e2d4e | 11578 | if (!PL_encoding || UTF) { |
5db06880 NC |
11579 | #ifdef PERL_MAD |
11580 | if (PL_madskills) { | |
c35e046a AL |
11581 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
11582 | const int len = s - start; | |
cd81e915 | 11583 | if (PL_thisstuff) |
c35e046a | 11584 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11585 | else |
c35e046a | 11586 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11587 | if (!PL_thisclose && !keep_delims) |
11588 | PL_thisclose = newSVpvn(s,termlen); | |
5db06880 NC |
11589 | } |
11590 | #endif | |
11591 | ||
220e2d4e IH |
11592 | if (keep_delims) |
11593 | sv_catpvn(sv, s, termlen); | |
11594 | s += termlen; | |
11595 | } | |
5db06880 NC |
11596 | #ifdef PERL_MAD |
11597 | else { | |
11598 | if (PL_madskills) { | |
c35e046a AL |
11599 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
11600 | const int len = s - tstart - termlen; | |
cd81e915 | 11601 | if (PL_thisstuff) |
c35e046a | 11602 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11603 | else |
c35e046a | 11604 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11605 | if (!PL_thisclose && !keep_delims) |
11606 | PL_thisclose = newSVpvn(s - termlen,termlen); | |
5db06880 NC |
11607 | } |
11608 | } | |
11609 | #endif | |
220e2d4e | 11610 | if (has_utf8 || PL_encoding) |
b1c7b182 | 11611 | SvUTF8_on(sv); |
d0063567 | 11612 | |
57843af0 | 11613 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
11614 | |
11615 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
11616 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
11617 | SvLEN_set(sv, SvCUR(sv) + 1); | |
b7e9a5c2 | 11618 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 11619 | } |
02aa26ce NT |
11620 | |
11621 | /* decide whether this is the first or second quoted string we've read | |
11622 | for this op | |
11623 | */ | |
4e553d73 | 11624 | |
3280af22 NIS |
11625 | if (PL_lex_stuff) |
11626 | PL_lex_repl = sv; | |
79072805 | 11627 | else |
3280af22 | 11628 | PL_lex_stuff = sv; |
378cc40b LW |
11629 | return s; |
11630 | } | |
11631 | ||
02aa26ce NT |
11632 | /* |
11633 | scan_num | |
11634 | takes: pointer to position in buffer | |
11635 | returns: pointer to new position in buffer | |
11636 | side-effects: builds ops for the constant in yylval.op | |
11637 | ||
11638 | Read a number in any of the formats that Perl accepts: | |
11639 | ||
7fd134d9 JH |
11640 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
11641 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
11642 | 0b[01](_?[01])* |
11643 | 0[0-7](_?[0-7])* | |
11644 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 11645 | |
3280af22 | 11646 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
11647 | thing it reads. |
11648 | ||
11649 | If it reads a number without a decimal point or an exponent, it will | |
11650 | try converting the number to an integer and see if it can do so | |
11651 | without loss of precision. | |
11652 | */ | |
4e553d73 | 11653 | |
378cc40b | 11654 | char * |
bfed75c6 | 11655 | Perl_scan_num(pTHX_ const char *start, YYSTYPE* lvalp) |
378cc40b | 11656 | { |
97aff369 | 11657 | dVAR; |
bfed75c6 | 11658 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
11659 | register char *d; /* destination in temp buffer */ |
11660 | register char *e; /* end of temp buffer */ | |
86554af2 | 11661 | NV nv; /* number read, as a double */ |
a0714e2c | 11662 | SV *sv = NULL; /* place to put the converted number */ |
a86a20aa | 11663 | bool floatit; /* boolean: int or float? */ |
cbbf8932 | 11664 | const char *lastub = NULL; /* position of last underbar */ |
bfed75c6 | 11665 | static char const number_too_long[] = "Number too long"; |
378cc40b | 11666 | |
02aa26ce NT |
11667 | /* We use the first character to decide what type of number this is */ |
11668 | ||
378cc40b | 11669 | switch (*s) { |
79072805 | 11670 | default: |
cea2e8a9 | 11671 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 11672 | |
02aa26ce | 11673 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 11674 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
11675 | case '0': |
11676 | { | |
02aa26ce NT |
11677 | /* variables: |
11678 | u holds the "number so far" | |
4f19785b WSI |
11679 | shift the power of 2 of the base |
11680 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
11681 | overflowed was the number more than we can hold? |
11682 | ||
11683 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
11684 | we in octal/hex/binary?" indicator to disallow hex characters |
11685 | when in octal mode. | |
02aa26ce | 11686 | */ |
9e24b6e2 JH |
11687 | NV n = 0.0; |
11688 | UV u = 0; | |
79072805 | 11689 | I32 shift; |
9e24b6e2 | 11690 | bool overflowed = FALSE; |
61f33854 | 11691 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
27da23d5 JH |
11692 | static const NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
11693 | static const char* const bases[5] = | |
11694 | { "", "binary", "", "octal", "hexadecimal" }; | |
11695 | static const char* const Bases[5] = | |
11696 | { "", "Binary", "", "Octal", "Hexadecimal" }; | |
11697 | static const char* const maxima[5] = | |
11698 | { "", | |
11699 | "0b11111111111111111111111111111111", | |
11700 | "", | |
11701 | "037777777777", | |
11702 | "0xffffffff" }; | |
bfed75c6 | 11703 | const char *base, *Base, *max; |
378cc40b | 11704 | |
02aa26ce | 11705 | /* check for hex */ |
378cc40b LW |
11706 | if (s[1] == 'x') { |
11707 | shift = 4; | |
11708 | s += 2; | |
61f33854 | 11709 | just_zero = FALSE; |
4f19785b WSI |
11710 | } else if (s[1] == 'b') { |
11711 | shift = 1; | |
11712 | s += 2; | |
61f33854 | 11713 | just_zero = FALSE; |
378cc40b | 11714 | } |
02aa26ce | 11715 | /* check for a decimal in disguise */ |
b78218b7 | 11716 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 11717 | goto decimal; |
02aa26ce | 11718 | /* so it must be octal */ |
928753ea | 11719 | else { |
378cc40b | 11720 | shift = 3; |
928753ea JH |
11721 | s++; |
11722 | } | |
11723 | ||
11724 | if (*s == '_') { | |
11725 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11726 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11727 | "Misplaced _ in number"); |
11728 | lastub = s++; | |
11729 | } | |
9e24b6e2 JH |
11730 | |
11731 | base = bases[shift]; | |
11732 | Base = Bases[shift]; | |
11733 | max = maxima[shift]; | |
02aa26ce | 11734 | |
4f19785b | 11735 | /* read the rest of the number */ |
378cc40b | 11736 | for (;;) { |
9e24b6e2 | 11737 | /* x is used in the overflow test, |
893fe2c2 | 11738 | b is the digit we're adding on. */ |
9e24b6e2 | 11739 | UV x, b; |
55497cff | 11740 | |
378cc40b | 11741 | switch (*s) { |
02aa26ce NT |
11742 | |
11743 | /* if we don't mention it, we're done */ | |
378cc40b LW |
11744 | default: |
11745 | goto out; | |
02aa26ce | 11746 | |
928753ea | 11747 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 11748 | case '_': |
041457d9 | 11749 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 11750 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11751 | "Misplaced _ in number"); |
11752 | lastub = s++; | |
de3bb511 | 11753 | break; |
02aa26ce NT |
11754 | |
11755 | /* 8 and 9 are not octal */ | |
378cc40b | 11756 | case '8': case '9': |
4f19785b | 11757 | if (shift == 3) |
cea2e8a9 | 11758 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 11759 | /* FALL THROUGH */ |
02aa26ce NT |
11760 | |
11761 | /* octal digits */ | |
4f19785b | 11762 | case '2': case '3': case '4': |
378cc40b | 11763 | case '5': case '6': case '7': |
4f19785b | 11764 | if (shift == 1) |
cea2e8a9 | 11765 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
11766 | /* FALL THROUGH */ |
11767 | ||
11768 | case '0': case '1': | |
02aa26ce | 11769 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 11770 | goto digit; |
02aa26ce NT |
11771 | |
11772 | /* hex digits */ | |
378cc40b LW |
11773 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
11774 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 11775 | /* make sure they said 0x */ |
378cc40b LW |
11776 | if (shift != 4) |
11777 | goto out; | |
55497cff | 11778 | b = (*s++ & 7) + 9; |
02aa26ce NT |
11779 | |
11780 | /* Prepare to put the digit we have onto the end | |
11781 | of the number so far. We check for overflows. | |
11782 | */ | |
11783 | ||
55497cff | 11784 | digit: |
61f33854 | 11785 | just_zero = FALSE; |
9e24b6e2 JH |
11786 | if (!overflowed) { |
11787 | x = u << shift; /* make room for the digit */ | |
11788 | ||
11789 | if ((x >> shift) != u | |
11790 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
11791 | overflowed = TRUE; |
11792 | n = (NV) u; | |
767a6a26 | 11793 | if (ckWARN_d(WARN_OVERFLOW)) |
9014280d | 11794 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), |
9e24b6e2 JH |
11795 | "Integer overflow in %s number", |
11796 | base); | |
11797 | } else | |
11798 | u = x | b; /* add the digit to the end */ | |
11799 | } | |
11800 | if (overflowed) { | |
11801 | n *= nvshift[shift]; | |
11802 | /* If an NV has not enough bits in its | |
11803 | * mantissa to represent an UV this summing of | |
11804 | * small low-order numbers is a waste of time | |
11805 | * (because the NV cannot preserve the | |
11806 | * low-order bits anyway): we could just | |
11807 | * remember when did we overflow and in the | |
11808 | * end just multiply n by the right | |
11809 | * amount. */ | |
11810 | n += (NV) b; | |
55497cff | 11811 | } |
378cc40b LW |
11812 | break; |
11813 | } | |
11814 | } | |
02aa26ce NT |
11815 | |
11816 | /* if we get here, we had success: make a scalar value from | |
11817 | the number. | |
11818 | */ | |
378cc40b | 11819 | out: |
928753ea JH |
11820 | |
11821 | /* final misplaced underbar check */ | |
11822 | if (s[-1] == '_') { | |
11823 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11824 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
11825 | } |
11826 | ||
561b68a9 | 11827 | sv = newSV(0); |
9e24b6e2 | 11828 | if (overflowed) { |
041457d9 | 11829 | if (n > 4294967295.0 && ckWARN(WARN_PORTABLE)) |
9014280d | 11830 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
11831 | "%s number > %s non-portable", |
11832 | Base, max); | |
11833 | sv_setnv(sv, n); | |
11834 | } | |
11835 | else { | |
15041a67 | 11836 | #if UVSIZE > 4 |
041457d9 | 11837 | if (u > 0xffffffff && ckWARN(WARN_PORTABLE)) |
9014280d | 11838 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
11839 | "%s number > %s non-portable", |
11840 | Base, max); | |
2cc4c2dc | 11841 | #endif |
9e24b6e2 JH |
11842 | sv_setuv(sv, u); |
11843 | } | |
61f33854 | 11844 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
bfed75c6 | 11845 | sv = new_constant(start, s - start, "integer", |
a0714e2c | 11846 | sv, NULL, NULL); |
61f33854 | 11847 | else if (PL_hints & HINT_NEW_BINARY) |
a0714e2c | 11848 | sv = new_constant(start, s - start, "binary", sv, NULL, NULL); |
378cc40b LW |
11849 | } |
11850 | break; | |
02aa26ce NT |
11851 | |
11852 | /* | |
11853 | handle decimal numbers. | |
11854 | we're also sent here when we read a 0 as the first digit | |
11855 | */ | |
378cc40b LW |
11856 | case '1': case '2': case '3': case '4': case '5': |
11857 | case '6': case '7': case '8': case '9': case '.': | |
11858 | decimal: | |
3280af22 NIS |
11859 | d = PL_tokenbuf; |
11860 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 11861 | floatit = FALSE; |
02aa26ce NT |
11862 | |
11863 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 11864 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 11865 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
11866 | if -w is on |
11867 | */ | |
93a17b20 | 11868 | if (*s == '_') { |
041457d9 | 11869 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 11870 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11871 | "Misplaced _ in number"); |
11872 | lastub = s++; | |
93a17b20 | 11873 | } |
fc36a67e | 11874 | else { |
02aa26ce | 11875 | /* check for end of fixed-length buffer */ |
fc36a67e | 11876 | if (d >= e) |
cea2e8a9 | 11877 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 11878 | /* if we're ok, copy the character */ |
378cc40b | 11879 | *d++ = *s++; |
fc36a67e | 11880 | } |
378cc40b | 11881 | } |
02aa26ce NT |
11882 | |
11883 | /* final misplaced underbar check */ | |
928753ea | 11884 | if (lastub && s == lastub + 1) { |
d008e5eb | 11885 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 11886 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 11887 | } |
02aa26ce NT |
11888 | |
11889 | /* read a decimal portion if there is one. avoid | |
11890 | 3..5 being interpreted as the number 3. followed | |
11891 | by .5 | |
11892 | */ | |
2f3197b3 | 11893 | if (*s == '.' && s[1] != '.') { |
79072805 | 11894 | floatit = TRUE; |
378cc40b | 11895 | *d++ = *s++; |
02aa26ce | 11896 | |
928753ea JH |
11897 | if (*s == '_') { |
11898 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11899 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11900 | "Misplaced _ in number"); |
11901 | lastub = s; | |
11902 | } | |
11903 | ||
11904 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 11905 | */ |
fc36a67e | 11906 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 11907 | /* fixed length buffer check */ |
fc36a67e | 11908 | if (d >= e) |
cea2e8a9 | 11909 | Perl_croak(aTHX_ number_too_long); |
928753ea | 11910 | if (*s == '_') { |
041457d9 | 11911 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 11912 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11913 | "Misplaced _ in number"); |
11914 | lastub = s; | |
11915 | } | |
11916 | else | |
fc36a67e | 11917 | *d++ = *s; |
378cc40b | 11918 | } |
928753ea JH |
11919 | /* fractional part ending in underbar? */ |
11920 | if (s[-1] == '_') { | |
11921 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11922 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11923 | "Misplaced _ in number"); |
11924 | } | |
dd629d5b GS |
11925 | if (*s == '.' && isDIGIT(s[1])) { |
11926 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 11927 | s = start; |
dd629d5b GS |
11928 | goto vstring; |
11929 | } | |
378cc40b | 11930 | } |
02aa26ce NT |
11931 | |
11932 | /* read exponent part, if present */ | |
3792a11b | 11933 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
11934 | floatit = TRUE; |
11935 | s++; | |
02aa26ce NT |
11936 | |
11937 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 11938 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 11939 | |
7fd134d9 JH |
11940 | /* stray preinitial _ */ |
11941 | if (*s == '_') { | |
11942 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11943 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
11944 | "Misplaced _ in number"); |
11945 | lastub = s++; | |
11946 | } | |
11947 | ||
02aa26ce | 11948 | /* allow positive or negative exponent */ |
378cc40b LW |
11949 | if (*s == '+' || *s == '-') |
11950 | *d++ = *s++; | |
02aa26ce | 11951 | |
7fd134d9 JH |
11952 | /* stray initial _ */ |
11953 | if (*s == '_') { | |
11954 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11955 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
11956 | "Misplaced _ in number"); |
11957 | lastub = s++; | |
11958 | } | |
11959 | ||
7fd134d9 JH |
11960 | /* read digits of exponent */ |
11961 | while (isDIGIT(*s) || *s == '_') { | |
11962 | if (isDIGIT(*s)) { | |
11963 | if (d >= e) | |
11964 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 11965 | *d++ = *s++; |
7fd134d9 JH |
11966 | } |
11967 | else { | |
041457d9 DM |
11968 | if (((lastub && s == lastub + 1) || |
11969 | (!isDIGIT(s[1]) && s[1] != '_')) | |
11970 | && ckWARN(WARN_SYNTAX)) | |
9014280d | 11971 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 | 11972 | "Misplaced _ in number"); |
b3b48e3e | 11973 | lastub = s++; |
7fd134d9 | 11974 | } |
7fd134d9 | 11975 | } |
378cc40b | 11976 | } |
02aa26ce | 11977 | |
02aa26ce NT |
11978 | |
11979 | /* make an sv from the string */ | |
561b68a9 | 11980 | sv = newSV(0); |
097ee67d | 11981 | |
0b7fceb9 | 11982 | /* |
58bb9ec3 NC |
11983 | We try to do an integer conversion first if no characters |
11984 | indicating "float" have been found. | |
0b7fceb9 MU |
11985 | */ |
11986 | ||
11987 | if (!floatit) { | |
58bb9ec3 | 11988 | UV uv; |
6136c704 | 11989 | const int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); |
58bb9ec3 NC |
11990 | |
11991 | if (flags == IS_NUMBER_IN_UV) { | |
11992 | if (uv <= IV_MAX) | |
86554af2 | 11993 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 11994 | else |
c239479b | 11995 | sv_setuv(sv, uv); |
58bb9ec3 NC |
11996 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
11997 | if (uv <= (UV) IV_MIN) | |
11998 | sv_setiv(sv, -(IV)uv); | |
11999 | else | |
12000 | floatit = TRUE; | |
12001 | } else | |
12002 | floatit = TRUE; | |
12003 | } | |
0b7fceb9 | 12004 | if (floatit) { |
58bb9ec3 NC |
12005 | /* terminate the string */ |
12006 | *d = '\0'; | |
86554af2 JH |
12007 | nv = Atof(PL_tokenbuf); |
12008 | sv_setnv(sv, nv); | |
12009 | } | |
86554af2 | 12010 | |
b8403495 JH |
12011 | if ( floatit ? (PL_hints & HINT_NEW_FLOAT) : |
12012 | (PL_hints & HINT_NEW_INTEGER) ) | |
4e553d73 | 12013 | sv = new_constant(PL_tokenbuf, d - PL_tokenbuf, |
b8403495 | 12014 | (floatit ? "float" : "integer"), |
a0714e2c | 12015 | sv, NULL, NULL); |
378cc40b | 12016 | break; |
0b7fceb9 | 12017 | |
e312add1 | 12018 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 12019 | case 'v': |
dd629d5b | 12020 | vstring: |
561b68a9 | 12021 | sv = newSV(5); /* preallocate storage space */ |
b0f01acb | 12022 | s = scan_vstring(s,sv); |
a7cb1f99 | 12023 | break; |
79072805 | 12024 | } |
a687059c | 12025 | |
02aa26ce NT |
12026 | /* make the op for the constant and return */ |
12027 | ||
a86a20aa | 12028 | if (sv) |
b73d6f50 | 12029 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 12030 | else |
5f66b61c | 12031 | lvalp->opval = NULL; |
a687059c | 12032 | |
73d840c0 | 12033 | return (char *)s; |
378cc40b LW |
12034 | } |
12035 | ||
76e3520e | 12036 | STATIC char * |
cea2e8a9 | 12037 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 12038 | { |
97aff369 | 12039 | dVAR; |
79072805 | 12040 | register char *eol; |
378cc40b | 12041 | register char *t; |
6136c704 | 12042 | SV * const stuff = newSVpvs(""); |
79072805 | 12043 | bool needargs = FALSE; |
c5ee2135 | 12044 | bool eofmt = FALSE; |
5db06880 NC |
12045 | #ifdef PERL_MAD |
12046 | char *tokenstart = s; | |
12047 | SV* savewhite; | |
12048 | ||
12049 | if (PL_madskills) { | |
cd81e915 NC |
12050 | savewhite = PL_thiswhite; |
12051 | PL_thiswhite = 0; | |
5db06880 NC |
12052 | } |
12053 | #endif | |
378cc40b | 12054 | |
79072805 | 12055 | while (!needargs) { |
a1b95068 | 12056 | if (*s == '.') { |
c35e046a | 12057 | t = s+1; |
51882d45 | 12058 | #ifdef PERL_STRICT_CR |
c35e046a AL |
12059 | while (SPACE_OR_TAB(*t)) |
12060 | t++; | |
51882d45 | 12061 | #else |
c35e046a AL |
12062 | while (SPACE_OR_TAB(*t) || *t == '\r') |
12063 | t++; | |
51882d45 | 12064 | #endif |
c5ee2135 WL |
12065 | if (*t == '\n' || t == PL_bufend) { |
12066 | eofmt = TRUE; | |
79072805 | 12067 | break; |
c5ee2135 | 12068 | } |
79072805 | 12069 | } |
3280af22 | 12070 | if (PL_in_eval && !PL_rsfp) { |
07409e01 | 12071 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 12072 | if (!eol++) |
3280af22 | 12073 | eol = PL_bufend; |
0f85fab0 LW |
12074 | } |
12075 | else | |
3280af22 | 12076 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 12077 | if (*s != '#') { |
a0d0e21e LW |
12078 | for (t = s; t < eol; t++) { |
12079 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
12080 | needargs = FALSE; | |
12081 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 12082 | } |
a0d0e21e LW |
12083 | if (*t == '@' || *t == '^') |
12084 | needargs = TRUE; | |
378cc40b | 12085 | } |
7121b347 MG |
12086 | if (eol > s) { |
12087 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 12088 | #ifndef PERL_STRICT_CR |
7121b347 MG |
12089 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
12090 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
12091 | end[-2] = '\n'; | |
12092 | end[-1] = '\0'; | |
b162af07 | 12093 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 12094 | } |
2dc4c65b | 12095 | #endif |
7121b347 MG |
12096 | } |
12097 | else | |
12098 | break; | |
79072805 | 12099 | } |
95a20fc0 | 12100 | s = (char*)eol; |
3280af22 | 12101 | if (PL_rsfp) { |
5db06880 NC |
12102 | #ifdef PERL_MAD |
12103 | if (PL_madskills) { | |
cd81e915 NC |
12104 | if (PL_thistoken) |
12105 | sv_catpvn(PL_thistoken, tokenstart, PL_bufend - tokenstart); | |
5db06880 | 12106 | else |
cd81e915 | 12107 | PL_thistoken = newSVpvn(tokenstart, PL_bufend - tokenstart); |
5db06880 NC |
12108 | } |
12109 | #endif | |
3280af22 | 12110 | s = filter_gets(PL_linestr, PL_rsfp, 0); |
5db06880 NC |
12111 | #ifdef PERL_MAD |
12112 | tokenstart = PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
12113 | #else | |
3280af22 | 12114 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); |
5db06880 | 12115 | #endif |
3280af22 | 12116 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); |
bd61b366 | 12117 | PL_last_lop = PL_last_uni = NULL; |
79072805 | 12118 | if (!s) { |
3280af22 | 12119 | s = PL_bufptr; |
378cc40b LW |
12120 | break; |
12121 | } | |
378cc40b | 12122 | } |
463ee0b2 | 12123 | incline(s); |
79072805 | 12124 | } |
a0d0e21e LW |
12125 | enough: |
12126 | if (SvCUR(stuff)) { | |
3280af22 | 12127 | PL_expect = XTERM; |
79072805 | 12128 | if (needargs) { |
3280af22 | 12129 | PL_lex_state = LEX_NORMAL; |
cd81e915 | 12130 | start_force(PL_curforce); |
9ded7720 | 12131 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 LW |
12132 | force_next(','); |
12133 | } | |
a0d0e21e | 12134 | else |
3280af22 | 12135 | PL_lex_state = LEX_FORMLINE; |
1bd51a4c | 12136 | if (!IN_BYTES) { |
95a20fc0 | 12137 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
1bd51a4c IH |
12138 | SvUTF8_on(stuff); |
12139 | else if (PL_encoding) | |
12140 | sv_recode_to_utf8(stuff, PL_encoding); | |
12141 | } | |
cd81e915 | 12142 | start_force(PL_curforce); |
9ded7720 | 12143 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 12144 | force_next(THING); |
cd81e915 | 12145 | start_force(PL_curforce); |
9ded7720 | 12146 | NEXTVAL_NEXTTOKE.ival = OP_FORMLINE; |
79072805 | 12147 | force_next(LSTOP); |
378cc40b | 12148 | } |
79072805 | 12149 | else { |
8990e307 | 12150 | SvREFCNT_dec(stuff); |
c5ee2135 WL |
12151 | if (eofmt) |
12152 | PL_lex_formbrack = 0; | |
3280af22 | 12153 | PL_bufptr = s; |
79072805 | 12154 | } |
5db06880 NC |
12155 | #ifdef PERL_MAD |
12156 | if (PL_madskills) { | |
cd81e915 NC |
12157 | if (PL_thistoken) |
12158 | sv_catpvn(PL_thistoken, tokenstart, s - tokenstart); | |
5db06880 | 12159 | else |
cd81e915 NC |
12160 | PL_thistoken = newSVpvn(tokenstart, s - tokenstart); |
12161 | PL_thiswhite = savewhite; | |
5db06880 NC |
12162 | } |
12163 | #endif | |
79072805 | 12164 | return s; |
378cc40b | 12165 | } |
a687059c | 12166 | |
76e3520e | 12167 | STATIC void |
cea2e8a9 | 12168 | S_set_csh(pTHX) |
a687059c | 12169 | { |
ae986130 | 12170 | #ifdef CSH |
97aff369 | 12171 | dVAR; |
3280af22 NIS |
12172 | if (!PL_cshlen) |
12173 | PL_cshlen = strlen(PL_cshname); | |
5f66b61c | 12174 | #else |
b2675967 | 12175 | #if defined(USE_ITHREADS) |
96a5add6 | 12176 | PERL_UNUSED_CONTEXT; |
ae986130 | 12177 | #endif |
b2675967 | 12178 | #endif |
a687059c | 12179 | } |
463ee0b2 | 12180 | |
ba6d6ac9 | 12181 | I32 |
864dbfa3 | 12182 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 12183 | { |
97aff369 | 12184 | dVAR; |
a3b680e6 | 12185 | const I32 oldsavestack_ix = PL_savestack_ix; |
6136c704 | 12186 | CV* const outsidecv = PL_compcv; |
8990e307 | 12187 | |
3280af22 NIS |
12188 | if (PL_compcv) { |
12189 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 12190 | } |
7766f137 | 12191 | SAVEI32(PL_subline); |
3280af22 | 12192 | save_item(PL_subname); |
3280af22 | 12193 | SAVESPTR(PL_compcv); |
3280af22 | 12194 | |
561b68a9 | 12195 | PL_compcv = (CV*)newSV(0); |
3280af22 NIS |
12196 | sv_upgrade((SV *)PL_compcv, is_format ? SVt_PVFM : SVt_PVCV); |
12197 | CvFLAGS(PL_compcv) |= flags; | |
12198 | ||
57843af0 | 12199 | PL_subline = CopLINE(PL_curcop); |
dd2155a4 | 12200 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
b37c2d43 | 12201 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc_simple(outsidecv); |
a3985cdc | 12202 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
748a9306 | 12203 | |
8990e307 LW |
12204 | return oldsavestack_ix; |
12205 | } | |
12206 | ||
084592ab CN |
12207 | #ifdef __SC__ |
12208 | #pragma segment Perl_yylex | |
12209 | #endif | |
8990e307 | 12210 | int |
bfed75c6 | 12211 | Perl_yywarn(pTHX_ const char *s) |
8990e307 | 12212 | { |
97aff369 | 12213 | dVAR; |
faef0170 | 12214 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 12215 | yyerror(s); |
faef0170 | 12216 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 12217 | return 0; |
8990e307 LW |
12218 | } |
12219 | ||
12220 | int | |
bfed75c6 | 12221 | Perl_yyerror(pTHX_ const char *s) |
463ee0b2 | 12222 | { |
97aff369 | 12223 | dVAR; |
bfed75c6 AL |
12224 | const char *where = NULL; |
12225 | const char *context = NULL; | |
68dc0745 | 12226 | int contlen = -1; |
46fc3d4c | 12227 | SV *msg; |
463ee0b2 | 12228 | |
3280af22 | 12229 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 12230 | where = "at EOF"; |
8bcfe651 TM |
12231 | else if (PL_oldoldbufptr && PL_bufptr > PL_oldoldbufptr && |
12232 | PL_bufptr - PL_oldoldbufptr < 200 && PL_oldoldbufptr != PL_oldbufptr && | |
12233 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12234 | /* |
12235 | Only for NetWare: | |
12236 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12237 | when the script has error such as not having the closing quotes like: | |
12238 | if ($var eq "value) | |
12239 | Checking of white spaces is anyway done in NetWare code. | |
12240 | */ | |
12241 | #ifndef NETWARE | |
3280af22 NIS |
12242 | while (isSPACE(*PL_oldoldbufptr)) |
12243 | PL_oldoldbufptr++; | |
f355267c | 12244 | #endif |
3280af22 NIS |
12245 | context = PL_oldoldbufptr; |
12246 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 12247 | } |
8bcfe651 TM |
12248 | else if (PL_oldbufptr && PL_bufptr > PL_oldbufptr && |
12249 | PL_bufptr - PL_oldbufptr < 200 && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12250 | /* |
12251 | Only for NetWare: | |
12252 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12253 | when the script has error such as not having the closing quotes like: | |
12254 | if ($var eq "value) | |
12255 | Checking of white spaces is anyway done in NetWare code. | |
12256 | */ | |
12257 | #ifndef NETWARE | |
3280af22 NIS |
12258 | while (isSPACE(*PL_oldbufptr)) |
12259 | PL_oldbufptr++; | |
f355267c | 12260 | #endif |
3280af22 NIS |
12261 | context = PL_oldbufptr; |
12262 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
12263 | } |
12264 | else if (yychar > 255) | |
68dc0745 | 12265 | where = "next token ???"; |
12fbd33b | 12266 | else if (yychar == -2) { /* YYEMPTY */ |
3280af22 NIS |
12267 | if (PL_lex_state == LEX_NORMAL || |
12268 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 12269 | where = "at end of line"; |
3280af22 | 12270 | else if (PL_lex_inpat) |
68dc0745 | 12271 | where = "within pattern"; |
463ee0b2 | 12272 | else |
68dc0745 | 12273 | where = "within string"; |
463ee0b2 | 12274 | } |
46fc3d4c | 12275 | else { |
6136c704 | 12276 | SV * const where_sv = sv_2mortal(newSVpvs("next char ")); |
46fc3d4c | 12277 | if (yychar < 32) |
cea2e8a9 | 12278 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
46fc3d4c | 12279 | else if (isPRINT_LC(yychar)) |
cea2e8a9 | 12280 | Perl_sv_catpvf(aTHX_ where_sv, "%c", yychar); |
463ee0b2 | 12281 | else |
cea2e8a9 | 12282 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
95a20fc0 | 12283 | where = SvPVX_const(where_sv); |
463ee0b2 | 12284 | } |
46fc3d4c | 12285 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 12286 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 12287 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 12288 | if (context) |
cea2e8a9 | 12289 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 12290 | else |
cea2e8a9 | 12291 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 12292 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 12293 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 12294 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 12295 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 12296 | PL_multi_end = 0; |
a0d0e21e | 12297 | } |
56da5a46 | 12298 | if (PL_in_eval & EVAL_WARNONLY && ckWARN_d(WARN_SYNTAX)) |
95b63a38 | 12299 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, (void*)msg); |
463ee0b2 | 12300 | else |
5a844595 | 12301 | qerror(msg); |
c7d6bfb2 GS |
12302 | if (PL_error_count >= 10) { |
12303 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 12304 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
95b63a38 | 12305 | (void*)ERRSV, OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
12306 | else |
12307 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 12308 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 12309 | } |
3280af22 | 12310 | PL_in_my = 0; |
5c284bb0 | 12311 | PL_in_my_stash = NULL; |
463ee0b2 LW |
12312 | return 0; |
12313 | } | |
084592ab CN |
12314 | #ifdef __SC__ |
12315 | #pragma segment Main | |
12316 | #endif | |
4e35701f | 12317 | |
b250498f | 12318 | STATIC char* |
3ae08724 | 12319 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 12320 | { |
97aff369 | 12321 | dVAR; |
f54cb97a | 12322 | const STRLEN slen = SvCUR(PL_linestr); |
7aa207d6 | 12323 | switch (s[0]) { |
4e553d73 NIS |
12324 | case 0xFF: |
12325 | if (s[1] == 0xFE) { | |
7aa207d6 | 12326 | /* UTF-16 little-endian? (or UTF32-LE?) */ |
3ae08724 | 12327 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
7aa207d6 | 12328 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-LE"); |
01ec43d0 | 12329 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12330 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF16-LE script encoding (BOM)\n"); |
3ae08724 | 12331 | s += 2; |
7aa207d6 | 12332 | utf16le: |
dea0fc0b JH |
12333 | if (PL_bufend > (char*)s) { |
12334 | U8 *news; | |
12335 | I32 newlen; | |
12336 | ||
12337 | filter_add(utf16rev_textfilter, NULL); | |
a02a5408 | 12338 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd RGS |
12339 | utf16_to_utf8_reversed(s, news, |
12340 | PL_bufend - (char*)s - 1, | |
12341 | &newlen); | |
7aa207d6 | 12342 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
5db06880 NC |
12343 | #ifdef PERL_MAD |
12344 | s = (U8*)SvPVX(PL_linestr); | |
12345 | Copy(news, s, newlen, U8); | |
12346 | s[newlen] = '\0'; | |
12347 | #endif | |
dea0fc0b | 12348 | Safefree(news); |
7aa207d6 JH |
12349 | SvUTF8_on(PL_linestr); |
12350 | s = (U8*)SvPVX(PL_linestr); | |
5db06880 NC |
12351 | #ifdef PERL_MAD |
12352 | /* FIXME - is this a general bug fix? */ | |
12353 | s[newlen] = '\0'; | |
12354 | #endif | |
7aa207d6 | 12355 | PL_bufend = SvPVX(PL_linestr) + newlen; |
dea0fc0b | 12356 | } |
b250498f | 12357 | #else |
7aa207d6 | 12358 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-LE"); |
b250498f | 12359 | #endif |
01ec43d0 GS |
12360 | } |
12361 | break; | |
78ae23f5 | 12362 | case 0xFE: |
7aa207d6 | 12363 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 12364 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12365 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b | 12366 | s += 2; |
7aa207d6 | 12367 | utf16be: |
dea0fc0b JH |
12368 | if (PL_bufend > (char *)s) { |
12369 | U8 *news; | |
12370 | I32 newlen; | |
12371 | ||
12372 | filter_add(utf16_textfilter, NULL); | |
a02a5408 | 12373 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd RGS |
12374 | utf16_to_utf8(s, news, |
12375 | PL_bufend - (char*)s, | |
12376 | &newlen); | |
7aa207d6 | 12377 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
dea0fc0b | 12378 | Safefree(news); |
7aa207d6 JH |
12379 | SvUTF8_on(PL_linestr); |
12380 | s = (U8*)SvPVX(PL_linestr); | |
12381 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
dea0fc0b | 12382 | } |
b250498f | 12383 | #else |
7aa207d6 | 12384 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-BE"); |
b250498f | 12385 | #endif |
01ec43d0 GS |
12386 | } |
12387 | break; | |
3ae08724 GS |
12388 | case 0xEF: |
12389 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
7aa207d6 | 12390 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
12391 | s += 3; /* UTF-8 */ |
12392 | } | |
12393 | break; | |
12394 | case 0: | |
7aa207d6 JH |
12395 | if (slen > 3) { |
12396 | if (s[1] == 0) { | |
12397 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
12398 | /* UTF-32 big-endian */ | |
12399 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-BE"); | |
12400 | } | |
12401 | } | |
12402 | else if (s[2] == 0 && s[3] != 0) { | |
12403 | /* Leading bytes | |
12404 | * 00 xx 00 xx | |
12405 | * are a good indicator of UTF-16BE. */ | |
12406 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); | |
12407 | goto utf16be; | |
12408 | } | |
01ec43d0 | 12409 | } |
7aa207d6 JH |
12410 | default: |
12411 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
12412 | /* Leading bytes | |
12413 | * xx 00 xx 00 | |
12414 | * are a good indicator of UTF-16LE. */ | |
12415 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); | |
12416 | goto utf16le; | |
12417 | } | |
01ec43d0 | 12418 | } |
b8f84bb2 | 12419 | return (char*)s; |
b250498f | 12420 | } |
4755096e | 12421 | |
4755096e GS |
12422 | /* |
12423 | * restore_rsfp | |
12424 | * Restore a source filter. | |
12425 | */ | |
12426 | ||
12427 | static void | |
acfe0abc | 12428 | restore_rsfp(pTHX_ void *f) |
4755096e | 12429 | { |
97aff369 | 12430 | dVAR; |
0bd48802 | 12431 | PerlIO * const fp = (PerlIO*)f; |
4755096e GS |
12432 | |
12433 | if (PL_rsfp == PerlIO_stdin()) | |
12434 | PerlIO_clearerr(PL_rsfp); | |
12435 | else if (PL_rsfp && (PL_rsfp != fp)) | |
12436 | PerlIO_close(PL_rsfp); | |
12437 | PL_rsfp = fp; | |
12438 | } | |
6e3aabd6 GS |
12439 | |
12440 | #ifndef PERL_NO_UTF16_FILTER | |
12441 | static I32 | |
acfe0abc | 12442 | utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12443 | { |
97aff369 | 12444 | dVAR; |
f54cb97a AL |
12445 | const STRLEN old = SvCUR(sv); |
12446 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12447 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12448 | "utf16_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12449 | FPTR2DPTR(void *, utf16_textfilter), |
12450 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12451 | if (count) { |
12452 | U8* tmps; | |
dea0fc0b | 12453 | I32 newlen; |
a02a5408 | 12454 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12455 | Copy(SvPVX_const(sv), tmps, old, char); |
12456 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12457 | SvCUR(sv) - old, &newlen); |
12458 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12459 | } |
1de9afcd RGS |
12460 | DEBUG_P({sv_dump(sv);}); |
12461 | return SvCUR(sv); | |
6e3aabd6 GS |
12462 | } |
12463 | ||
12464 | static I32 | |
acfe0abc | 12465 | utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12466 | { |
97aff369 | 12467 | dVAR; |
f54cb97a AL |
12468 | const STRLEN old = SvCUR(sv); |
12469 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12470 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12471 | "utf16rev_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12472 | FPTR2DPTR(void *, utf16rev_textfilter), |
12473 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12474 | if (count) { |
12475 | U8* tmps; | |
dea0fc0b | 12476 | I32 newlen; |
a02a5408 | 12477 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12478 | Copy(SvPVX_const(sv), tmps, old, char); |
12479 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12480 | SvCUR(sv) - old, &newlen); |
12481 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12482 | } |
1de9afcd | 12483 | DEBUG_P({ sv_dump(sv); }); |
6e3aabd6 GS |
12484 | return count; |
12485 | } | |
12486 | #endif | |
9f4817db | 12487 | |
f333445c JP |
12488 | /* |
12489 | Returns a pointer to the next character after the parsed | |
12490 | vstring, as well as updating the passed in sv. | |
12491 | ||
12492 | Function must be called like | |
12493 | ||
561b68a9 | 12494 | sv = newSV(5); |
f333445c JP |
12495 | s = scan_vstring(s,sv); |
12496 | ||
12497 | The sv should already be large enough to store the vstring | |
12498 | passed in, for performance reasons. | |
12499 | ||
12500 | */ | |
12501 | ||
12502 | char * | |
bfed75c6 | 12503 | Perl_scan_vstring(pTHX_ const char *s, SV *sv) |
f333445c | 12504 | { |
97aff369 | 12505 | dVAR; |
bfed75c6 AL |
12506 | const char *pos = s; |
12507 | const char *start = s; | |
f333445c | 12508 | if (*pos == 'v') pos++; /* get past 'v' */ |
3e884cbf JH |
12509 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
12510 | pos++; | |
f333445c JP |
12511 | if ( *pos != '.') { |
12512 | /* this may not be a v-string if followed by => */ | |
bfed75c6 | 12513 | const char *next = pos; |
8fc7bb1c SM |
12514 | while (next < PL_bufend && isSPACE(*next)) |
12515 | ++next; | |
12516 | if ((PL_bufend - next) >= 2 && *next == '=' && next[1] == '>' ) { | |
f333445c JP |
12517 | /* return string not v-string */ |
12518 | sv_setpvn(sv,(char *)s,pos-s); | |
73d840c0 | 12519 | return (char *)pos; |
f333445c JP |
12520 | } |
12521 | } | |
12522 | ||
12523 | if (!isALPHA(*pos)) { | |
89ebb4a3 | 12524 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
f333445c | 12525 | |
d4c19fe8 AL |
12526 | if (*s == 'v') |
12527 | s++; /* get past 'v' */ | |
f333445c JP |
12528 | |
12529 | sv_setpvn(sv, "", 0); | |
12530 | ||
12531 | for (;;) { | |
d4c19fe8 | 12532 | /* this is atoi() that tolerates underscores */ |
0bd48802 AL |
12533 | U8 *tmpend; |
12534 | UV rev = 0; | |
d4c19fe8 AL |
12535 | const char *end = pos; |
12536 | UV mult = 1; | |
12537 | while (--end >= s) { | |
12538 | if (*end != '_') { | |
12539 | const UV orev = rev; | |
f333445c JP |
12540 | rev += (*end - '0') * mult; |
12541 | mult *= 10; | |
12542 | if (orev > rev && ckWARN_d(WARN_OVERFLOW)) | |
12543 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), | |
12544 | "Integer overflow in decimal number"); | |
12545 | } | |
12546 | } | |
12547 | #ifdef EBCDIC | |
12548 | if (rev > 0x7FFFFFFF) | |
12549 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
12550 | #endif | |
12551 | /* Append native character for the rev point */ | |
12552 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
12553 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
12554 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
12555 | SvUTF8_on(sv); | |
3e884cbf | 12556 | if (pos + 1 < PL_bufend && *pos == '.' && isDIGIT(pos[1])) |
f333445c JP |
12557 | s = ++pos; |
12558 | else { | |
12559 | s = pos; | |
12560 | break; | |
12561 | } | |
3e884cbf | 12562 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
f333445c JP |
12563 | pos++; |
12564 | } | |
12565 | SvPOK_on(sv); | |
12566 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
12567 | SvRMAGICAL_on(sv); | |
12568 | } | |
73d840c0 | 12569 | return (char *)s; |
f333445c JP |
12570 | } |
12571 | ||
1da4ca5f NC |
12572 | /* |
12573 | * Local variables: | |
12574 | * c-indentation-style: bsd | |
12575 | * c-basic-offset: 4 | |
12576 | * indent-tabs-mode: t | |
12577 | * End: | |
12578 | * | |
37442d52 RGS |
12579 | * ex: set ts=8 sts=4 sw=4 noet: |
12580 | */ |