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 | 501 | char he_name[32] = "feature_"; |
6fca0082 | 502 | (void) my_strlcpy(&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 | 664 | PL_linestr = line; |
cfd0369c | 665 | s = SvPV_const(PL_linestr, len); |
0eb20fa2 DM |
666 | if (SvREADONLY(PL_linestr) || !len || s[len-1] != ';') { |
667 | PL_linestr = sv_2mortal(len ? newSVsv(PL_linestr) : newSVpvn(s, 0)); | |
668 | if (!len || s[len-1] != ';') | |
669 | sv_catpvs(PL_linestr, "\n;"); | |
8990e307 | 670 | } |
3280af22 NIS |
671 | SvTEMP_off(PL_linestr); |
672 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
673 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); | |
bd61b366 | 674 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 675 | PL_rsfp = 0; |
79072805 | 676 | } |
a687059c | 677 | |
ffb4593c NT |
678 | /* |
679 | * Perl_lex_end | |
9cbb5ea2 GS |
680 | * Finalizer for lexing operations. Must be called when the parser is |
681 | * done with the lexer. | |
ffb4593c NT |
682 | */ |
683 | ||
463ee0b2 | 684 | void |
864dbfa3 | 685 | Perl_lex_end(pTHX) |
463ee0b2 | 686 | { |
97aff369 | 687 | dVAR; |
3280af22 | 688 | PL_doextract = FALSE; |
463ee0b2 LW |
689 | } |
690 | ||
ffb4593c NT |
691 | /* |
692 | * S_incline | |
693 | * This subroutine has nothing to do with tilting, whether at windmills | |
694 | * or pinball tables. Its name is short for "increment line". It | |
57843af0 | 695 | * increments the current line number in CopLINE(PL_curcop) and checks |
ffb4593c | 696 | * to see whether the line starts with a comment of the form |
9cbb5ea2 GS |
697 | * # line 500 "foo.pm" |
698 | * If so, it sets the current line number and file to the values in the comment. | |
ffb4593c NT |
699 | */ |
700 | ||
76e3520e | 701 | STATIC void |
cea2e8a9 | 702 | S_incline(pTHX_ char *s) |
463ee0b2 | 703 | { |
97aff369 | 704 | dVAR; |
463ee0b2 LW |
705 | char *t; |
706 | char *n; | |
73659bf1 | 707 | char *e; |
463ee0b2 | 708 | char ch; |
463ee0b2 | 709 | |
57843af0 | 710 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
711 | if (*s++ != '#') |
712 | return; | |
d4c19fe8 AL |
713 | while (SPACE_OR_TAB(*s)) |
714 | s++; | |
73659bf1 GS |
715 | if (strnEQ(s, "line", 4)) |
716 | s += 4; | |
717 | else | |
718 | return; | |
084592ab | 719 | if (SPACE_OR_TAB(*s)) |
73659bf1 | 720 | s++; |
4e553d73 | 721 | else |
73659bf1 | 722 | return; |
d4c19fe8 AL |
723 | while (SPACE_OR_TAB(*s)) |
724 | s++; | |
463ee0b2 LW |
725 | if (!isDIGIT(*s)) |
726 | return; | |
d4c19fe8 | 727 | |
463ee0b2 LW |
728 | n = s; |
729 | while (isDIGIT(*s)) | |
730 | s++; | |
bf4acbe4 | 731 | while (SPACE_OR_TAB(*s)) |
463ee0b2 | 732 | s++; |
73659bf1 | 733 | if (*s == '"' && (t = strchr(s+1, '"'))) { |
463ee0b2 | 734 | s++; |
73659bf1 GS |
735 | e = t + 1; |
736 | } | |
463ee0b2 | 737 | else { |
c35e046a AL |
738 | t = s; |
739 | while (!isSPACE(*t)) | |
740 | t++; | |
73659bf1 | 741 | e = t; |
463ee0b2 | 742 | } |
bf4acbe4 | 743 | while (SPACE_OR_TAB(*e) || *e == '\r' || *e == '\f') |
73659bf1 GS |
744 | e++; |
745 | if (*e != '\n' && *e != '\0') | |
746 | return; /* false alarm */ | |
747 | ||
463ee0b2 LW |
748 | ch = *t; |
749 | *t = '\0'; | |
f4dd75d9 | 750 | if (t - s > 0) { |
8a5ee598 | 751 | #ifndef USE_ITHREADS |
c4420975 | 752 | const char * const cf = CopFILE(PL_curcop); |
42d9b98d NC |
753 | STRLEN tmplen = cf ? strlen(cf) : 0; |
754 | if (tmplen > 7 && strnEQ(cf, "(eval ", 6)) { | |
e66cf94c RGS |
755 | /* must copy *{"::_<(eval N)[oldfilename:L]"} |
756 | * to *{"::_<newfilename"} */ | |
757 | char smallbuf[256], smallbuf2[256]; | |
758 | char *tmpbuf, *tmpbuf2; | |
8a5ee598 | 759 | GV **gvp, *gv2; |
e66cf94c RGS |
760 | STRLEN tmplen2 = strlen(s); |
761 | if (tmplen + 3 < sizeof smallbuf) | |
762 | tmpbuf = smallbuf; | |
763 | else | |
764 | Newx(tmpbuf, tmplen + 3, char); | |
765 | if (tmplen2 + 3 < sizeof smallbuf2) | |
766 | tmpbuf2 = smallbuf2; | |
767 | else | |
768 | Newx(tmpbuf2, tmplen2 + 3, char); | |
769 | tmpbuf[0] = tmpbuf2[0] = '_'; | |
770 | tmpbuf[1] = tmpbuf2[1] = '<'; | |
771 | memcpy(tmpbuf + 2, cf, ++tmplen); | |
772 | memcpy(tmpbuf2 + 2, s, ++tmplen2); | |
773 | ++tmplen; ++tmplen2; | |
8a5ee598 RGS |
774 | gvp = (GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, FALSE); |
775 | if (gvp) { | |
776 | gv2 = *(GV**)hv_fetch(PL_defstash, tmpbuf2, tmplen2, TRUE); | |
e5527e4b | 777 | if (!isGV(gv2)) { |
8a5ee598 | 778 | gv_init(gv2, PL_defstash, tmpbuf2, tmplen2, FALSE); |
e5527e4b RGS |
779 | /* adjust ${"::_<newfilename"} to store the new file name */ |
780 | GvSV(gv2) = newSVpvn(tmpbuf2 + 2, tmplen2 - 2); | |
781 | GvHV(gv2) = (HV*)SvREFCNT_inc(GvHV(*gvp)); | |
782 | GvAV(gv2) = (AV*)SvREFCNT_inc(GvAV(*gvp)); | |
783 | } | |
8a5ee598 | 784 | } |
e66cf94c RGS |
785 | if (tmpbuf != smallbuf) Safefree(tmpbuf); |
786 | if (tmpbuf2 != smallbuf2) Safefree(tmpbuf2); | |
787 | } | |
8a5ee598 | 788 | #endif |
05ec9bb3 | 789 | CopFILE_free(PL_curcop); |
57843af0 | 790 | CopFILE_set(PL_curcop, s); |
f4dd75d9 | 791 | } |
463ee0b2 | 792 | *t = ch; |
57843af0 | 793 | CopLINE_set(PL_curcop, atoi(n)-1); |
463ee0b2 LW |
794 | } |
795 | ||
29595ff2 | 796 | #ifdef PERL_MAD |
cd81e915 | 797 | /* skip space before PL_thistoken */ |
29595ff2 NC |
798 | |
799 | STATIC char * | |
800 | S_skipspace0(pTHX_ register char *s) | |
801 | { | |
802 | s = skipspace(s); | |
803 | if (!PL_madskills) | |
804 | return s; | |
cd81e915 NC |
805 | if (PL_skipwhite) { |
806 | if (!PL_thiswhite) | |
6b29d1f5 | 807 | PL_thiswhite = newSVpvs(""); |
cd81e915 NC |
808 | sv_catsv(PL_thiswhite, PL_skipwhite); |
809 | sv_free(PL_skipwhite); | |
810 | PL_skipwhite = 0; | |
811 | } | |
812 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
29595ff2 NC |
813 | return s; |
814 | } | |
815 | ||
cd81e915 | 816 | /* skip space after PL_thistoken */ |
29595ff2 NC |
817 | |
818 | STATIC char * | |
819 | S_skipspace1(pTHX_ register char *s) | |
820 | { | |
d4c19fe8 | 821 | const char *start = s; |
29595ff2 NC |
822 | I32 startoff = start - SvPVX(PL_linestr); |
823 | ||
824 | s = skipspace(s); | |
825 | if (!PL_madskills) | |
826 | return s; | |
827 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 828 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 829 | const char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
830 | PL_thistoken = newSVpvn(tstart, start - tstart); |
831 | } | |
832 | PL_realtokenstart = -1; | |
833 | if (PL_skipwhite) { | |
834 | if (!PL_nextwhite) | |
6b29d1f5 | 835 | PL_nextwhite = newSVpvs(""); |
cd81e915 NC |
836 | sv_catsv(PL_nextwhite, PL_skipwhite); |
837 | sv_free(PL_skipwhite); | |
838 | PL_skipwhite = 0; | |
29595ff2 NC |
839 | } |
840 | return s; | |
841 | } | |
842 | ||
843 | STATIC char * | |
844 | S_skipspace2(pTHX_ register char *s, SV **svp) | |
845 | { | |
c35e046a AL |
846 | char *start; |
847 | const I32 bufptroff = PL_bufptr - SvPVX(PL_linestr); | |
848 | const I32 startoff = s - SvPVX(PL_linestr); | |
849 | ||
29595ff2 NC |
850 | s = skipspace(s); |
851 | PL_bufptr = SvPVX(PL_linestr) + bufptroff; | |
852 | if (!PL_madskills || !svp) | |
853 | return s; | |
854 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 855 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 856 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
857 | PL_thistoken = newSVpvn(tstart, start - tstart); |
858 | PL_realtokenstart = -1; | |
29595ff2 | 859 | } |
cd81e915 | 860 | if (PL_skipwhite) { |
29595ff2 | 861 | if (!*svp) |
6b29d1f5 | 862 | *svp = newSVpvs(""); |
cd81e915 NC |
863 | sv_setsv(*svp, PL_skipwhite); |
864 | sv_free(PL_skipwhite); | |
865 | PL_skipwhite = 0; | |
29595ff2 NC |
866 | } |
867 | ||
868 | return s; | |
869 | } | |
870 | #endif | |
871 | ||
80a702cd RGS |
872 | STATIC void |
873 | S_update_debugger_info_pv(pTHX_ const char *buf, STRLEN len) | |
874 | { | |
875 | AV *av = CopFILEAVx(PL_curcop); | |
876 | if (av) { | |
877 | SV * const sv = newSV(0); | |
878 | sv_upgrade(sv, SVt_PVMG); | |
879 | sv_setpvn(sv, buf, len); | |
880 | (void)SvIOK_on(sv); | |
881 | SvIV_set(sv, 0); | |
882 | av_store(av, (I32)CopLINE(PL_curcop), sv); | |
883 | } | |
884 | } | |
885 | ||
886 | STATIC void | |
887 | S_update_debugger_info_sv(pTHX_ SV *orig_sv) | |
888 | { | |
889 | AV *av = CopFILEAVx(PL_curcop); | |
890 | if (av) { | |
891 | SV * const sv = newSV(0); | |
892 | sv_upgrade(sv, SVt_PVMG); | |
893 | sv_setsv(sv, orig_sv); | |
894 | (void)SvIOK_on(sv); | |
895 | SvIV_set(sv, 0); | |
896 | av_store(av, (I32)CopLINE(PL_curcop), sv); | |
897 | } | |
898 | } | |
899 | ||
ffb4593c NT |
900 | /* |
901 | * S_skipspace | |
902 | * Called to gobble the appropriate amount and type of whitespace. | |
903 | * Skips comments as well. | |
904 | */ | |
905 | ||
76e3520e | 906 | STATIC char * |
cea2e8a9 | 907 | S_skipspace(pTHX_ register char *s) |
a687059c | 908 | { |
97aff369 | 909 | dVAR; |
5db06880 NC |
910 | #ifdef PERL_MAD |
911 | int curoff; | |
912 | int startoff = s - SvPVX(PL_linestr); | |
913 | ||
cd81e915 NC |
914 | if (PL_skipwhite) { |
915 | sv_free(PL_skipwhite); | |
916 | PL_skipwhite = 0; | |
5db06880 NC |
917 | } |
918 | #endif | |
919 | ||
3280af22 | 920 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
bf4acbe4 | 921 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
463ee0b2 | 922 | s++; |
5db06880 NC |
923 | #ifdef PERL_MAD |
924 | goto done; | |
925 | #else | |
463ee0b2 | 926 | return s; |
5db06880 | 927 | #endif |
463ee0b2 LW |
928 | } |
929 | for (;;) { | |
fd049845 | 930 | STRLEN prevlen; |
09bef843 | 931 | SSize_t oldprevlen, oldoldprevlen; |
9c5ffd7c | 932 | SSize_t oldloplen = 0, oldunilen = 0; |
60e6418e GS |
933 | while (s < PL_bufend && isSPACE(*s)) { |
934 | if (*s++ == '\n' && PL_in_eval && !PL_rsfp) | |
935 | incline(s); | |
936 | } | |
ffb4593c NT |
937 | |
938 | /* comment */ | |
3280af22 NIS |
939 | if (s < PL_bufend && *s == '#') { |
940 | while (s < PL_bufend && *s != '\n') | |
463ee0b2 | 941 | s++; |
60e6418e | 942 | if (s < PL_bufend) { |
463ee0b2 | 943 | s++; |
60e6418e GS |
944 | if (PL_in_eval && !PL_rsfp) { |
945 | incline(s); | |
946 | continue; | |
947 | } | |
948 | } | |
463ee0b2 | 949 | } |
ffb4593c NT |
950 | |
951 | /* only continue to recharge the buffer if we're at the end | |
952 | * of the buffer, we're not reading from a source filter, and | |
953 | * we're in normal lexing mode | |
954 | */ | |
09bef843 SB |
955 | if (s < PL_bufend || !PL_rsfp || PL_sublex_info.sub_inwhat || |
956 | PL_lex_state == LEX_FORMLINE) | |
5db06880 NC |
957 | #ifdef PERL_MAD |
958 | goto done; | |
959 | #else | |
463ee0b2 | 960 | return s; |
5db06880 | 961 | #endif |
ffb4593c NT |
962 | |
963 | /* try to recharge the buffer */ | |
5db06880 NC |
964 | #ifdef PERL_MAD |
965 | curoff = s - SvPVX(PL_linestr); | |
966 | #endif | |
967 | ||
9cbb5ea2 | 968 | if ((s = filter_gets(PL_linestr, PL_rsfp, |
bd61b366 | 969 | (prevlen = SvCUR(PL_linestr)))) == NULL) |
9cbb5ea2 | 970 | { |
5db06880 NC |
971 | #ifdef PERL_MAD |
972 | if (PL_madskills && curoff != startoff) { | |
cd81e915 | 973 | if (!PL_skipwhite) |
6b29d1f5 | 974 | PL_skipwhite = newSVpvs(""); |
cd81e915 | 975 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, |
5db06880 NC |
976 | curoff - startoff); |
977 | } | |
978 | ||
979 | /* mustn't throw out old stuff yet if madpropping */ | |
980 | SvCUR(PL_linestr) = curoff; | |
981 | s = SvPVX(PL_linestr) + curoff; | |
982 | *s = 0; | |
983 | if (curoff && s[-1] == '\n') | |
984 | s[-1] = ' '; | |
985 | #endif | |
986 | ||
9cbb5ea2 | 987 | /* end of file. Add on the -p or -n magic */ |
cd81e915 | 988 | /* XXX these shouldn't really be added here, can't set PL_faketokens */ |
01a19ab0 | 989 | if (PL_minus_p) { |
5db06880 NC |
990 | #ifdef PERL_MAD |
991 | sv_catpv(PL_linestr, | |
992 | ";}continue{print or die qq(-p destination: $!\\n);}"); | |
993 | #else | |
01a19ab0 NC |
994 | sv_setpv(PL_linestr, |
995 | ";}continue{print or die qq(-p destination: $!\\n);}"); | |
5db06880 | 996 | #endif |
3280af22 | 997 | PL_minus_n = PL_minus_p = 0; |
a0d0e21e | 998 | } |
01a19ab0 | 999 | else if (PL_minus_n) { |
5db06880 NC |
1000 | #ifdef PERL_MAD |
1001 | sv_catpvn(PL_linestr, ";}", 2); | |
1002 | #else | |
01a19ab0 | 1003 | sv_setpvn(PL_linestr, ";}", 2); |
5db06880 | 1004 | #endif |
01a19ab0 NC |
1005 | PL_minus_n = 0; |
1006 | } | |
a0d0e21e | 1007 | else |
5db06880 NC |
1008 | #ifdef PERL_MAD |
1009 | sv_catpvn(PL_linestr,";", 1); | |
1010 | #else | |
4147a61b | 1011 | sv_setpvn(PL_linestr,";", 1); |
5db06880 | 1012 | #endif |
ffb4593c NT |
1013 | |
1014 | /* reset variables for next time we lex */ | |
9cbb5ea2 | 1015 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart |
89122651 NC |
1016 | = SvPVX(PL_linestr) |
1017 | #ifdef PERL_MAD | |
1018 | + curoff | |
1019 | #endif | |
1020 | ; | |
3280af22 | 1021 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 1022 | PL_last_lop = PL_last_uni = NULL; |
ffb4593c NT |
1023 | |
1024 | /* Close the filehandle. Could be from -P preprocessor, | |
1025 | * STDIN, or a regular file. If we were reading code from | |
1026 | * STDIN (because the commandline held no -e or filename) | |
1027 | * then we don't close it, we reset it so the code can | |
1028 | * read from STDIN too. | |
1029 | */ | |
1030 | ||
3280af22 NIS |
1031 | if (PL_preprocess && !PL_in_eval) |
1032 | (void)PerlProc_pclose(PL_rsfp); | |
1033 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) | |
1034 | PerlIO_clearerr(PL_rsfp); | |
8990e307 | 1035 | else |
3280af22 | 1036 | (void)PerlIO_close(PL_rsfp); |
4608196e | 1037 | PL_rsfp = NULL; |
463ee0b2 LW |
1038 | return s; |
1039 | } | |
ffb4593c NT |
1040 | |
1041 | /* not at end of file, so we only read another line */ | |
09bef843 SB |
1042 | /* make corresponding updates to old pointers, for yyerror() */ |
1043 | oldprevlen = PL_oldbufptr - PL_bufend; | |
1044 | oldoldprevlen = PL_oldoldbufptr - PL_bufend; | |
1045 | if (PL_last_uni) | |
1046 | oldunilen = PL_last_uni - PL_bufend; | |
1047 | if (PL_last_lop) | |
1048 | oldloplen = PL_last_lop - PL_bufend; | |
3280af22 NIS |
1049 | PL_linestart = PL_bufptr = s + prevlen; |
1050 | PL_bufend = s + SvCUR(PL_linestr); | |
1051 | s = PL_bufptr; | |
09bef843 SB |
1052 | PL_oldbufptr = s + oldprevlen; |
1053 | PL_oldoldbufptr = s + oldoldprevlen; | |
1054 | if (PL_last_uni) | |
1055 | PL_last_uni = s + oldunilen; | |
1056 | if (PL_last_lop) | |
1057 | PL_last_lop = s + oldloplen; | |
a0d0e21e | 1058 | incline(s); |
ffb4593c NT |
1059 | |
1060 | /* debugger active and we're not compiling the debugger code, | |
1061 | * so store the line into the debugger's array of lines | |
1062 | */ | |
80a702cd RGS |
1063 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
1064 | update_debugger_info_pv(PL_bufptr, PL_bufend - PL_bufptr); | |
463ee0b2 | 1065 | } |
5db06880 NC |
1066 | |
1067 | #ifdef PERL_MAD | |
1068 | done: | |
1069 | if (PL_madskills) { | |
cd81e915 | 1070 | if (!PL_skipwhite) |
6b29d1f5 | 1071 | PL_skipwhite = newSVpvs(""); |
5db06880 NC |
1072 | curoff = s - SvPVX(PL_linestr); |
1073 | if (curoff - startoff) | |
cd81e915 | 1074 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, |
5db06880 NC |
1075 | curoff - startoff); |
1076 | } | |
1077 | return s; | |
1078 | #endif | |
a687059c | 1079 | } |
378cc40b | 1080 | |
ffb4593c NT |
1081 | /* |
1082 | * S_check_uni | |
1083 | * Check the unary operators to ensure there's no ambiguity in how they're | |
1084 | * used. An ambiguous piece of code would be: | |
1085 | * rand + 5 | |
1086 | * This doesn't mean rand() + 5. Because rand() is a unary operator, | |
1087 | * the +5 is its argument. | |
1088 | */ | |
1089 | ||
76e3520e | 1090 | STATIC void |
cea2e8a9 | 1091 | S_check_uni(pTHX) |
ba106d47 | 1092 | { |
97aff369 | 1093 | dVAR; |
d4c19fe8 AL |
1094 | const char *s; |
1095 | const char *t; | |
2f3197b3 | 1096 | |
3280af22 | 1097 | if (PL_oldoldbufptr != PL_last_uni) |
2f3197b3 | 1098 | return; |
3280af22 NIS |
1099 | while (isSPACE(*PL_last_uni)) |
1100 | PL_last_uni++; | |
c35e046a AL |
1101 | s = PL_last_uni; |
1102 | while (isALNUM_lazy_if(s,UTF) || *s == '-') | |
1103 | s++; | |
3280af22 | 1104 | if ((t = strchr(s, '(')) && t < PL_bufptr) |
a0d0e21e | 1105 | return; |
6136c704 | 1106 | |
0453d815 | 1107 | if (ckWARN_d(WARN_AMBIGUOUS)){ |
9014280d | 1108 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
32d45c1d NC |
1109 | "Warning: Use of \"%.*s\" without parentheses is ambiguous", |
1110 | (int)(s - PL_last_uni), PL_last_uni); | |
0453d815 | 1111 | } |
2f3197b3 LW |
1112 | } |
1113 | ||
ffb4593c NT |
1114 | /* |
1115 | * LOP : macro to build a list operator. Its behaviour has been replaced | |
1116 | * with a subroutine, S_lop() for which LOP is just another name. | |
1117 | */ | |
1118 | ||
a0d0e21e LW |
1119 | #define LOP(f,x) return lop(f,x,s) |
1120 | ||
ffb4593c NT |
1121 | /* |
1122 | * S_lop | |
1123 | * Build a list operator (or something that might be one). The rules: | |
1124 | * - if we have a next token, then it's a list operator [why?] | |
1125 | * - if the next thing is an opening paren, then it's a function | |
1126 | * - else it's a list operator | |
1127 | */ | |
1128 | ||
76e3520e | 1129 | STATIC I32 |
a0be28da | 1130 | S_lop(pTHX_ I32 f, int x, char *s) |
ffed7fef | 1131 | { |
97aff369 | 1132 | dVAR; |
79072805 | 1133 | yylval.ival = f; |
35c8bce7 | 1134 | CLINE; |
3280af22 NIS |
1135 | PL_expect = x; |
1136 | PL_bufptr = s; | |
1137 | PL_last_lop = PL_oldbufptr; | |
eb160463 | 1138 | PL_last_lop_op = (OPCODE)f; |
5db06880 NC |
1139 | #ifdef PERL_MAD |
1140 | if (PL_lasttoke) | |
1141 | return REPORT(LSTOP); | |
1142 | #else | |
3280af22 | 1143 | if (PL_nexttoke) |
bbf60fe6 | 1144 | return REPORT(LSTOP); |
5db06880 | 1145 | #endif |
79072805 | 1146 | if (*s == '(') |
bbf60fe6 | 1147 | return REPORT(FUNC); |
29595ff2 | 1148 | s = PEEKSPACE(s); |
79072805 | 1149 | if (*s == '(') |
bbf60fe6 | 1150 | return REPORT(FUNC); |
79072805 | 1151 | else |
bbf60fe6 | 1152 | return REPORT(LSTOP); |
79072805 LW |
1153 | } |
1154 | ||
5db06880 NC |
1155 | #ifdef PERL_MAD |
1156 | /* | |
1157 | * S_start_force | |
1158 | * Sets up for an eventual force_next(). start_force(0) basically does | |
1159 | * an unshift, while start_force(-1) does a push. yylex removes items | |
1160 | * on the "pop" end. | |
1161 | */ | |
1162 | ||
1163 | STATIC void | |
1164 | S_start_force(pTHX_ int where) | |
1165 | { | |
1166 | int i; | |
1167 | ||
cd81e915 | 1168 | if (where < 0) /* so people can duplicate start_force(PL_curforce) */ |
5db06880 | 1169 | where = PL_lasttoke; |
cd81e915 NC |
1170 | assert(PL_curforce < 0 || PL_curforce == where); |
1171 | if (PL_curforce != where) { | |
5db06880 NC |
1172 | for (i = PL_lasttoke; i > where; --i) { |
1173 | PL_nexttoke[i] = PL_nexttoke[i-1]; | |
1174 | } | |
1175 | PL_lasttoke++; | |
1176 | } | |
cd81e915 | 1177 | if (PL_curforce < 0) /* in case of duplicate start_force() */ |
5db06880 | 1178 | Zero(&PL_nexttoke[where], 1, NEXTTOKE); |
cd81e915 NC |
1179 | PL_curforce = where; |
1180 | if (PL_nextwhite) { | |
5db06880 | 1181 | if (PL_madskills) |
6b29d1f5 | 1182 | curmad('^', newSVpvs("")); |
cd81e915 | 1183 | CURMAD('_', PL_nextwhite); |
5db06880 NC |
1184 | } |
1185 | } | |
1186 | ||
1187 | STATIC void | |
1188 | S_curmad(pTHX_ char slot, SV *sv) | |
1189 | { | |
1190 | MADPROP **where; | |
1191 | ||
1192 | if (!sv) | |
1193 | return; | |
cd81e915 NC |
1194 | if (PL_curforce < 0) |
1195 | where = &PL_thismad; | |
5db06880 | 1196 | else |
cd81e915 | 1197 | where = &PL_nexttoke[PL_curforce].next_mad; |
5db06880 | 1198 | |
cd81e915 | 1199 | if (PL_faketokens) |
5db06880 NC |
1200 | sv_setpvn(sv, "", 0); |
1201 | else { | |
1202 | if (!IN_BYTES) { | |
1203 | if (UTF && is_utf8_string((U8*)SvPVX(sv), SvCUR(sv))) | |
1204 | SvUTF8_on(sv); | |
1205 | else if (PL_encoding) { | |
1206 | sv_recode_to_utf8(sv, PL_encoding); | |
1207 | } | |
1208 | } | |
1209 | } | |
1210 | ||
1211 | /* keep a slot open for the head of the list? */ | |
1212 | if (slot != '_' && *where && (*where)->mad_key == '^') { | |
1213 | (*where)->mad_key = slot; | |
1214 | sv_free((*where)->mad_val); | |
1215 | (*where)->mad_val = (void*)sv; | |
1216 | } | |
1217 | else | |
1218 | addmad(newMADsv(slot, sv), where, 0); | |
1219 | } | |
1220 | #else | |
b3f24c00 MHM |
1221 | # define start_force(where) NOOP |
1222 | # define curmad(slot, sv) NOOP | |
5db06880 NC |
1223 | #endif |
1224 | ||
ffb4593c NT |
1225 | /* |
1226 | * S_force_next | |
9cbb5ea2 | 1227 | * When the lexer realizes it knows the next token (for instance, |
ffb4593c | 1228 | * it is reordering tokens for the parser) then it can call S_force_next |
9cbb5ea2 | 1229 | * to know what token to return the next time the lexer is called. Caller |
5db06880 NC |
1230 | * will need to set PL_nextval[] (or PL_nexttoke[].next_val with PERL_MAD), |
1231 | * and possibly PL_expect to ensure the lexer handles the token correctly. | |
ffb4593c NT |
1232 | */ |
1233 | ||
4e553d73 | 1234 | STATIC void |
cea2e8a9 | 1235 | S_force_next(pTHX_ I32 type) |
79072805 | 1236 | { |
97aff369 | 1237 | dVAR; |
5db06880 | 1238 | #ifdef PERL_MAD |
cd81e915 | 1239 | if (PL_curforce < 0) |
5db06880 | 1240 | start_force(PL_lasttoke); |
cd81e915 | 1241 | PL_nexttoke[PL_curforce].next_type = type; |
5db06880 NC |
1242 | if (PL_lex_state != LEX_KNOWNEXT) |
1243 | PL_lex_defer = PL_lex_state; | |
1244 | PL_lex_state = LEX_KNOWNEXT; | |
1245 | PL_lex_expect = PL_expect; | |
cd81e915 | 1246 | PL_curforce = -1; |
5db06880 | 1247 | #else |
3280af22 NIS |
1248 | PL_nexttype[PL_nexttoke] = type; |
1249 | PL_nexttoke++; | |
1250 | if (PL_lex_state != LEX_KNOWNEXT) { | |
1251 | PL_lex_defer = PL_lex_state; | |
1252 | PL_lex_expect = PL_expect; | |
1253 | PL_lex_state = LEX_KNOWNEXT; | |
79072805 | 1254 | } |
5db06880 | 1255 | #endif |
79072805 LW |
1256 | } |
1257 | ||
d0a148a6 NC |
1258 | STATIC SV * |
1259 | S_newSV_maybe_utf8(pTHX_ const char *start, STRLEN len) | |
1260 | { | |
97aff369 | 1261 | dVAR; |
9d4ba2ae | 1262 | SV * const sv = newSVpvn(start,len); |
bfed75c6 | 1263 | if (UTF && !IN_BYTES && is_utf8_string((const U8*)start, len)) |
d0a148a6 NC |
1264 | SvUTF8_on(sv); |
1265 | return sv; | |
1266 | } | |
1267 | ||
ffb4593c NT |
1268 | /* |
1269 | * S_force_word | |
1270 | * When the lexer knows the next thing is a word (for instance, it has | |
1271 | * just seen -> and it knows that the next char is a word char, then | |
1272 | * it calls S_force_word to stick the next word into the PL_next lookahead. | |
1273 | * | |
1274 | * Arguments: | |
b1b65b59 | 1275 | * char *start : buffer position (must be within PL_linestr) |
ffb4593c NT |
1276 | * int token : PL_next will be this type of bare word (e.g., METHOD,WORD) |
1277 | * int check_keyword : if true, Perl checks to make sure the word isn't | |
1278 | * a keyword (do this if the word is a label, e.g. goto FOO) | |
1279 | * int allow_pack : if true, : characters will also be allowed (require, | |
1280 | * use, etc. do this) | |
9cbb5ea2 | 1281 | * int allow_initial_tick : used by the "sub" lexer only. |
ffb4593c NT |
1282 | */ |
1283 | ||
76e3520e | 1284 | STATIC char * |
cea2e8a9 | 1285 | S_force_word(pTHX_ register char *start, int token, int check_keyword, int allow_pack, int allow_initial_tick) |
79072805 | 1286 | { |
97aff369 | 1287 | dVAR; |
463ee0b2 LW |
1288 | register char *s; |
1289 | STRLEN len; | |
4e553d73 | 1290 | |
29595ff2 | 1291 | start = SKIPSPACE1(start); |
463ee0b2 | 1292 | s = start; |
7e2040f0 | 1293 | if (isIDFIRST_lazy_if(s,UTF) || |
a0d0e21e | 1294 | (allow_pack && *s == ':') || |
15f0808c | 1295 | (allow_initial_tick && *s == '\'') ) |
a0d0e21e | 1296 | { |
3280af22 | 1297 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, allow_pack, &len); |
5458a98a | 1298 | if (check_keyword && keyword(PL_tokenbuf, len, 0)) |
463ee0b2 | 1299 | return start; |
cd81e915 | 1300 | start_force(PL_curforce); |
5db06880 NC |
1301 | if (PL_madskills) |
1302 | curmad('X', newSVpvn(start,s-start)); | |
463ee0b2 | 1303 | if (token == METHOD) { |
29595ff2 | 1304 | s = SKIPSPACE1(s); |
463ee0b2 | 1305 | if (*s == '(') |
3280af22 | 1306 | PL_expect = XTERM; |
463ee0b2 | 1307 | else { |
3280af22 | 1308 | PL_expect = XOPERATOR; |
463ee0b2 | 1309 | } |
79072805 | 1310 | } |
9ded7720 | 1311 | NEXTVAL_NEXTTOKE.opval |
d0a148a6 NC |
1312 | = (OP*)newSVOP(OP_CONST,0, |
1313 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
9ded7720 | 1314 | NEXTVAL_NEXTTOKE.opval->op_private |= OPpCONST_BARE; |
79072805 LW |
1315 | force_next(token); |
1316 | } | |
1317 | return s; | |
1318 | } | |
1319 | ||
ffb4593c NT |
1320 | /* |
1321 | * S_force_ident | |
9cbb5ea2 | 1322 | * Called when the lexer wants $foo *foo &foo etc, but the program |
ffb4593c NT |
1323 | * text only contains the "foo" portion. The first argument is a pointer |
1324 | * to the "foo", and the second argument is the type symbol to prefix. | |
1325 | * Forces the next token to be a "WORD". | |
9cbb5ea2 | 1326 | * Creates the symbol if it didn't already exist (via gv_fetchpv()). |
ffb4593c NT |
1327 | */ |
1328 | ||
76e3520e | 1329 | STATIC void |
bfed75c6 | 1330 | S_force_ident(pTHX_ register const char *s, int kind) |
79072805 | 1331 | { |
97aff369 | 1332 | dVAR; |
c35e046a | 1333 | if (*s) { |
90e5519e NC |
1334 | const STRLEN len = strlen(s); |
1335 | OP* const o = (OP*)newSVOP(OP_CONST, 0, newSVpvn(s, len)); | |
cd81e915 | 1336 | start_force(PL_curforce); |
9ded7720 | 1337 | NEXTVAL_NEXTTOKE.opval = o; |
79072805 | 1338 | force_next(WORD); |
748a9306 | 1339 | if (kind) { |
11343788 | 1340 | o->op_private = OPpCONST_ENTERED; |
55497cff | 1341 | /* XXX see note in pp_entereval() for why we forgo typo |
1342 | warnings if the symbol must be introduced in an eval. | |
1343 | GSAR 96-10-12 */ | |
90e5519e NC |
1344 | gv_fetchpvn_flags(s, len, |
1345 | PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) | |
1346 | : GV_ADD, | |
1347 | kind == '$' ? SVt_PV : | |
1348 | kind == '@' ? SVt_PVAV : | |
1349 | kind == '%' ? SVt_PVHV : | |
a0d0e21e | 1350 | SVt_PVGV |
90e5519e | 1351 | ); |
748a9306 | 1352 | } |
79072805 LW |
1353 | } |
1354 | } | |
1355 | ||
1571675a GS |
1356 | NV |
1357 | Perl_str_to_version(pTHX_ SV *sv) | |
1358 | { | |
1359 | NV retval = 0.0; | |
1360 | NV nshift = 1.0; | |
1361 | STRLEN len; | |
cfd0369c | 1362 | const char *start = SvPV_const(sv,len); |
9d4ba2ae | 1363 | const char * const end = start + len; |
504618e9 | 1364 | const bool utf = SvUTF8(sv) ? TRUE : FALSE; |
1571675a | 1365 | while (start < end) { |
ba210ebe | 1366 | STRLEN skip; |
1571675a GS |
1367 | UV n; |
1368 | if (utf) | |
9041c2e3 | 1369 | n = utf8n_to_uvchr((U8*)start, len, &skip, 0); |
1571675a GS |
1370 | else { |
1371 | n = *(U8*)start; | |
1372 | skip = 1; | |
1373 | } | |
1374 | retval += ((NV)n)/nshift; | |
1375 | start += skip; | |
1376 | nshift *= 1000; | |
1377 | } | |
1378 | return retval; | |
1379 | } | |
1380 | ||
4e553d73 | 1381 | /* |
ffb4593c NT |
1382 | * S_force_version |
1383 | * Forces the next token to be a version number. | |
e759cc13 RGS |
1384 | * If the next token appears to be an invalid version number, (e.g. "v2b"), |
1385 | * and if "guessing" is TRUE, then no new token is created (and the caller | |
1386 | * must use an alternative parsing method). | |
ffb4593c NT |
1387 | */ |
1388 | ||
76e3520e | 1389 | STATIC char * |
e759cc13 | 1390 | S_force_version(pTHX_ char *s, int guessing) |
89bfa8cd | 1391 | { |
97aff369 | 1392 | dVAR; |
5f66b61c | 1393 | OP *version = NULL; |
44dcb63b | 1394 | char *d; |
5db06880 NC |
1395 | #ifdef PERL_MAD |
1396 | I32 startoff = s - SvPVX(PL_linestr); | |
1397 | #endif | |
89bfa8cd | 1398 | |
29595ff2 | 1399 | s = SKIPSPACE1(s); |
89bfa8cd | 1400 | |
44dcb63b | 1401 | d = s; |
dd629d5b | 1402 | if (*d == 'v') |
44dcb63b | 1403 | d++; |
44dcb63b | 1404 | if (isDIGIT(*d)) { |
e759cc13 RGS |
1405 | while (isDIGIT(*d) || *d == '_' || *d == '.') |
1406 | d++; | |
5db06880 NC |
1407 | #ifdef PERL_MAD |
1408 | if (PL_madskills) { | |
cd81e915 | 1409 | start_force(PL_curforce); |
5db06880 NC |
1410 | curmad('X', newSVpvn(s,d-s)); |
1411 | } | |
1412 | #endif | |
9f3d182e | 1413 | if (*d == ';' || isSPACE(*d) || *d == '}' || !*d) { |
dd629d5b | 1414 | SV *ver; |
b73d6f50 | 1415 | s = scan_num(s, &yylval); |
89bfa8cd | 1416 | version = yylval.opval; |
dd629d5b GS |
1417 | ver = cSVOPx(version)->op_sv; |
1418 | if (SvPOK(ver) && !SvNIOK(ver)) { | |
862a34c6 | 1419 | SvUPGRADE(ver, SVt_PVNV); |
9d6ce603 | 1420 | SvNV_set(ver, str_to_version(ver)); |
1571675a | 1421 | SvNOK_on(ver); /* hint that it is a version */ |
44dcb63b | 1422 | } |
89bfa8cd | 1423 | } |
5db06880 NC |
1424 | else if (guessing) { |
1425 | #ifdef PERL_MAD | |
1426 | if (PL_madskills) { | |
cd81e915 NC |
1427 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1428 | PL_nextwhite = 0; | |
5db06880 NC |
1429 | s = SvPVX(PL_linestr) + startoff; |
1430 | } | |
1431 | #endif | |
e759cc13 | 1432 | return s; |
5db06880 | 1433 | } |
89bfa8cd | 1434 | } |
1435 | ||
5db06880 NC |
1436 | #ifdef PERL_MAD |
1437 | if (PL_madskills && !version) { | |
cd81e915 NC |
1438 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1439 | PL_nextwhite = 0; | |
5db06880 NC |
1440 | s = SvPVX(PL_linestr) + startoff; |
1441 | } | |
1442 | #endif | |
89bfa8cd | 1443 | /* NOTE: The parser sees the package name and the VERSION swapped */ |
cd81e915 | 1444 | start_force(PL_curforce); |
9ded7720 | 1445 | NEXTVAL_NEXTTOKE.opval = version; |
4e553d73 | 1446 | force_next(WORD); |
89bfa8cd | 1447 | |
e759cc13 | 1448 | return s; |
89bfa8cd | 1449 | } |
1450 | ||
ffb4593c NT |
1451 | /* |
1452 | * S_tokeq | |
1453 | * Tokenize a quoted string passed in as an SV. It finds the next | |
1454 | * chunk, up to end of string or a backslash. It may make a new | |
1455 | * SV containing that chunk (if HINT_NEW_STRING is on). It also | |
1456 | * turns \\ into \. | |
1457 | */ | |
1458 | ||
76e3520e | 1459 | STATIC SV * |
cea2e8a9 | 1460 | S_tokeq(pTHX_ SV *sv) |
79072805 | 1461 | { |
97aff369 | 1462 | dVAR; |
79072805 LW |
1463 | register char *s; |
1464 | register char *send; | |
1465 | register char *d; | |
b3ac6de7 IZ |
1466 | STRLEN len = 0; |
1467 | SV *pv = sv; | |
79072805 LW |
1468 | |
1469 | if (!SvLEN(sv)) | |
b3ac6de7 | 1470 | goto finish; |
79072805 | 1471 | |
a0d0e21e | 1472 | s = SvPV_force(sv, len); |
21a311ee | 1473 | if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) |
b3ac6de7 | 1474 | goto finish; |
463ee0b2 | 1475 | send = s + len; |
79072805 LW |
1476 | while (s < send && *s != '\\') |
1477 | s++; | |
1478 | if (s == send) | |
b3ac6de7 | 1479 | goto finish; |
79072805 | 1480 | d = s; |
be4731d2 | 1481 | if ( PL_hints & HINT_NEW_STRING ) { |
95a20fc0 | 1482 | pv = sv_2mortal(newSVpvn(SvPVX_const(pv), len)); |
be4731d2 NIS |
1483 | if (SvUTF8(sv)) |
1484 | SvUTF8_on(pv); | |
1485 | } | |
79072805 LW |
1486 | while (s < send) { |
1487 | if (*s == '\\') { | |
a0d0e21e | 1488 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
1489 | s++; /* all that, just for this */ |
1490 | } | |
1491 | *d++ = *s++; | |
1492 | } | |
1493 | *d = '\0'; | |
95a20fc0 | 1494 | SvCUR_set(sv, d - SvPVX_const(sv)); |
b3ac6de7 | 1495 | finish: |
3280af22 | 1496 | if ( PL_hints & HINT_NEW_STRING ) |
b3ac6de7 | 1497 | return new_constant(NULL, 0, "q", sv, pv, "q"); |
79072805 LW |
1498 | return sv; |
1499 | } | |
1500 | ||
ffb4593c NT |
1501 | /* |
1502 | * Now come three functions related to double-quote context, | |
1503 | * S_sublex_start, S_sublex_push, and S_sublex_done. They're used when | |
1504 | * converting things like "\u\Lgnat" into ucfirst(lc("gnat")). They | |
1505 | * interact with PL_lex_state, and create fake ( ... ) argument lists | |
1506 | * to handle functions and concatenation. | |
1507 | * They assume that whoever calls them will be setting up a fake | |
1508 | * join call, because each subthing puts a ',' after it. This lets | |
1509 | * "lower \luPpEr" | |
1510 | * become | |
1511 | * join($, , 'lower ', lcfirst( 'uPpEr', ) ,) | |
1512 | * | |
1513 | * (I'm not sure whether the spurious commas at the end of lcfirst's | |
1514 | * arguments and join's arguments are created or not). | |
1515 | */ | |
1516 | ||
1517 | /* | |
1518 | * S_sublex_start | |
1519 | * Assumes that yylval.ival is the op we're creating (e.g. OP_LCFIRST). | |
1520 | * | |
1521 | * Pattern matching will set PL_lex_op to the pattern-matching op to | |
1522 | * make (we return THING if yylval.ival is OP_NULL, PMFUNC otherwise). | |
1523 | * | |
1524 | * OP_CONST and OP_READLINE are easy--just make the new op and return. | |
1525 | * | |
1526 | * Everything else becomes a FUNC. | |
1527 | * | |
1528 | * Sets PL_lex_state to LEX_INTERPPUSH unless (ival was OP_NULL or we | |
1529 | * had an OP_CONST or OP_READLINE). This just sets us up for a | |
1530 | * call to S_sublex_push(). | |
1531 | */ | |
1532 | ||
76e3520e | 1533 | STATIC I32 |
cea2e8a9 | 1534 | S_sublex_start(pTHX) |
79072805 | 1535 | { |
97aff369 | 1536 | dVAR; |
0d46e09a | 1537 | register const I32 op_type = yylval.ival; |
79072805 LW |
1538 | |
1539 | if (op_type == OP_NULL) { | |
3280af22 | 1540 | yylval.opval = PL_lex_op; |
5f66b61c | 1541 | PL_lex_op = NULL; |
79072805 LW |
1542 | return THING; |
1543 | } | |
1544 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
3280af22 | 1545 | SV *sv = tokeq(PL_lex_stuff); |
b3ac6de7 IZ |
1546 | |
1547 | if (SvTYPE(sv) == SVt_PVIV) { | |
1548 | /* Overloaded constants, nothing fancy: Convert to SVt_PV: */ | |
1549 | STRLEN len; | |
96a5add6 | 1550 | const char * const p = SvPV_const(sv, len); |
f54cb97a | 1551 | SV * const nsv = newSVpvn(p, len); |
01ec43d0 GS |
1552 | if (SvUTF8(sv)) |
1553 | SvUTF8_on(nsv); | |
b3ac6de7 IZ |
1554 | SvREFCNT_dec(sv); |
1555 | sv = nsv; | |
4e553d73 | 1556 | } |
b3ac6de7 | 1557 | yylval.opval = (OP*)newSVOP(op_type, 0, sv); |
a0714e2c | 1558 | PL_lex_stuff = NULL; |
6f33ba73 RGS |
1559 | /* Allow <FH> // "foo" */ |
1560 | if (op_type == OP_READLINE) | |
1561 | PL_expect = XTERMORDORDOR; | |
79072805 LW |
1562 | return THING; |
1563 | } | |
e3f73d4e RGS |
1564 | else if (op_type == OP_BACKTICK && PL_lex_op) { |
1565 | /* readpipe() vas overriden */ | |
1566 | cSVOPx(cLISTOPx(cUNOPx(PL_lex_op)->op_first)->op_first->op_sibling)->op_sv = tokeq(PL_lex_stuff); | |
1567 | yylval.opval = PL_lex_op; | |
9b201d7d | 1568 | PL_lex_op = NULL; |
e3f73d4e RGS |
1569 | PL_lex_stuff = NULL; |
1570 | return THING; | |
1571 | } | |
79072805 | 1572 | |
3280af22 NIS |
1573 | PL_sublex_info.super_state = PL_lex_state; |
1574 | PL_sublex_info.sub_inwhat = op_type; | |
1575 | PL_sublex_info.sub_op = PL_lex_op; | |
1576 | PL_lex_state = LEX_INTERPPUSH; | |
55497cff | 1577 | |
3280af22 NIS |
1578 | PL_expect = XTERM; |
1579 | if (PL_lex_op) { | |
1580 | yylval.opval = PL_lex_op; | |
5f66b61c | 1581 | PL_lex_op = NULL; |
55497cff | 1582 | return PMFUNC; |
1583 | } | |
1584 | else | |
1585 | return FUNC; | |
1586 | } | |
1587 | ||
ffb4593c NT |
1588 | /* |
1589 | * S_sublex_push | |
1590 | * Create a new scope to save the lexing state. The scope will be | |
1591 | * ended in S_sublex_done. Returns a '(', starting the function arguments | |
1592 | * to the uc, lc, etc. found before. | |
1593 | * Sets PL_lex_state to LEX_INTERPCONCAT. | |
1594 | */ | |
1595 | ||
76e3520e | 1596 | STATIC I32 |
cea2e8a9 | 1597 | S_sublex_push(pTHX) |
55497cff | 1598 | { |
27da23d5 | 1599 | dVAR; |
f46d017c | 1600 | ENTER; |
55497cff | 1601 | |
3280af22 NIS |
1602 | PL_lex_state = PL_sublex_info.super_state; |
1603 | SAVEI32(PL_lex_dojoin); | |
1604 | SAVEI32(PL_lex_brackets); | |
3280af22 NIS |
1605 | SAVEI32(PL_lex_casemods); |
1606 | SAVEI32(PL_lex_starts); | |
1607 | SAVEI32(PL_lex_state); | |
7766f137 | 1608 | SAVEVPTR(PL_lex_inpat); |
3280af22 | 1609 | SAVEI32(PL_lex_inwhat); |
57843af0 | 1610 | SAVECOPLINE(PL_curcop); |
3280af22 | 1611 | SAVEPPTR(PL_bufptr); |
8452ff4b | 1612 | SAVEPPTR(PL_bufend); |
3280af22 NIS |
1613 | SAVEPPTR(PL_oldbufptr); |
1614 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
1615 | SAVEPPTR(PL_last_lop); |
1616 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
1617 | SAVEPPTR(PL_linestart); |
1618 | SAVESPTR(PL_linestr); | |
8edd5f42 RGS |
1619 | SAVEGENERICPV(PL_lex_brackstack); |
1620 | SAVEGENERICPV(PL_lex_casestack); | |
3280af22 NIS |
1621 | |
1622 | PL_linestr = PL_lex_stuff; | |
a0714e2c | 1623 | PL_lex_stuff = NULL; |
3280af22 | 1624 | |
9cbb5ea2 GS |
1625 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart |
1626 | = SvPVX(PL_linestr); | |
3280af22 | 1627 | PL_bufend += SvCUR(PL_linestr); |
bd61b366 | 1628 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1629 | SAVEFREESV(PL_linestr); |
1630 | ||
1631 | PL_lex_dojoin = FALSE; | |
1632 | PL_lex_brackets = 0; | |
a02a5408 JC |
1633 | Newx(PL_lex_brackstack, 120, char); |
1634 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
1635 | PL_lex_casemods = 0; |
1636 | *PL_lex_casestack = '\0'; | |
1637 | PL_lex_starts = 0; | |
1638 | PL_lex_state = LEX_INTERPCONCAT; | |
eb160463 | 1639 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 NIS |
1640 | |
1641 | PL_lex_inwhat = PL_sublex_info.sub_inwhat; | |
1642 | if (PL_lex_inwhat == OP_MATCH || PL_lex_inwhat == OP_QR || PL_lex_inwhat == OP_SUBST) | |
1643 | PL_lex_inpat = PL_sublex_info.sub_op; | |
79072805 | 1644 | else |
5f66b61c | 1645 | PL_lex_inpat = NULL; |
79072805 | 1646 | |
55497cff | 1647 | return '('; |
79072805 LW |
1648 | } |
1649 | ||
ffb4593c NT |
1650 | /* |
1651 | * S_sublex_done | |
1652 | * Restores lexer state after a S_sublex_push. | |
1653 | */ | |
1654 | ||
76e3520e | 1655 | STATIC I32 |
cea2e8a9 | 1656 | S_sublex_done(pTHX) |
79072805 | 1657 | { |
27da23d5 | 1658 | dVAR; |
3280af22 | 1659 | if (!PL_lex_starts++) { |
396482e1 | 1660 | SV * const sv = newSVpvs(""); |
9aa983d2 JH |
1661 | if (SvUTF8(PL_linestr)) |
1662 | SvUTF8_on(sv); | |
3280af22 | 1663 | PL_expect = XOPERATOR; |
9aa983d2 | 1664 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
79072805 LW |
1665 | return THING; |
1666 | } | |
1667 | ||
3280af22 NIS |
1668 | if (PL_lex_casemods) { /* oops, we've got some unbalanced parens */ |
1669 | PL_lex_state = LEX_INTERPCASEMOD; | |
cea2e8a9 | 1670 | return yylex(); |
79072805 LW |
1671 | } |
1672 | ||
ffb4593c | 1673 | /* Is there a right-hand side to take care of? (s//RHS/ or tr//RHS/) */ |
3280af22 NIS |
1674 | if (PL_lex_repl && (PL_lex_inwhat == OP_SUBST || PL_lex_inwhat == OP_TRANS)) { |
1675 | PL_linestr = PL_lex_repl; | |
1676 | PL_lex_inpat = 0; | |
1677 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
1678 | PL_bufend += SvCUR(PL_linestr); | |
bd61b366 | 1679 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1680 | SAVEFREESV(PL_linestr); |
1681 | PL_lex_dojoin = FALSE; | |
1682 | PL_lex_brackets = 0; | |
3280af22 NIS |
1683 | PL_lex_casemods = 0; |
1684 | *PL_lex_casestack = '\0'; | |
1685 | PL_lex_starts = 0; | |
25da4f38 | 1686 | if (SvEVALED(PL_lex_repl)) { |
3280af22 NIS |
1687 | PL_lex_state = LEX_INTERPNORMAL; |
1688 | PL_lex_starts++; | |
e9fa98b2 HS |
1689 | /* we don't clear PL_lex_repl here, so that we can check later |
1690 | whether this is an evalled subst; that means we rely on the | |
1691 | logic to ensure sublex_done() is called again only via the | |
1692 | branch (in yylex()) that clears PL_lex_repl, else we'll loop */ | |
79072805 | 1693 | } |
e9fa98b2 | 1694 | else { |
3280af22 | 1695 | PL_lex_state = LEX_INTERPCONCAT; |
a0714e2c | 1696 | PL_lex_repl = NULL; |
e9fa98b2 | 1697 | } |
79072805 | 1698 | return ','; |
ffed7fef LW |
1699 | } |
1700 | else { | |
5db06880 NC |
1701 | #ifdef PERL_MAD |
1702 | if (PL_madskills) { | |
cd81e915 NC |
1703 | if (PL_thiswhite) { |
1704 | if (!PL_endwhite) | |
6b29d1f5 | 1705 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
1706 | sv_catsv(PL_endwhite, PL_thiswhite); |
1707 | PL_thiswhite = 0; | |
1708 | } | |
1709 | if (PL_thistoken) | |
1710 | sv_setpvn(PL_thistoken,"",0); | |
5db06880 | 1711 | else |
cd81e915 | 1712 | PL_realtokenstart = -1; |
5db06880 NC |
1713 | } |
1714 | #endif | |
f46d017c | 1715 | LEAVE; |
3280af22 NIS |
1716 | PL_bufend = SvPVX(PL_linestr); |
1717 | PL_bufend += SvCUR(PL_linestr); | |
1718 | PL_expect = XOPERATOR; | |
09bef843 | 1719 | PL_sublex_info.sub_inwhat = 0; |
79072805 | 1720 | return ')'; |
ffed7fef LW |
1721 | } |
1722 | } | |
1723 | ||
02aa26ce NT |
1724 | /* |
1725 | scan_const | |
1726 | ||
1727 | Extracts a pattern, double-quoted string, or transliteration. This | |
1728 | is terrifying code. | |
1729 | ||
94def140 | 1730 | It looks at PL_lex_inwhat and PL_lex_inpat to find out whether it's |
3280af22 | 1731 | processing a pattern (PL_lex_inpat is true), a transliteration |
94def140 | 1732 | (PL_lex_inwhat == OP_TRANS is true), or a double-quoted string. |
02aa26ce | 1733 | |
94def140 TS |
1734 | Returns a pointer to the character scanned up to. If this is |
1735 | advanced from the start pointer supplied (i.e. if anything was | |
9b599b2a GS |
1736 | successfully parsed), will leave an OP for the substring scanned |
1737 | in yylval. Caller must intuit reason for not parsing further | |
1738 | by looking at the next characters herself. | |
1739 | ||
02aa26ce NT |
1740 | In patterns: |
1741 | backslashes: | |
1742 | double-quoted style: \r and \n | |
1743 | regexp special ones: \D \s | |
94def140 TS |
1744 | constants: \x31 |
1745 | backrefs: \1 | |
02aa26ce NT |
1746 | case and quoting: \U \Q \E |
1747 | stops on @ and $, but not for $ as tail anchor | |
1748 | ||
1749 | In transliterations: | |
1750 | characters are VERY literal, except for - not at the start or end | |
94def140 TS |
1751 | of the string, which indicates a range. If the range is in bytes, |
1752 | scan_const expands the range to the full set of intermediate | |
1753 | characters. If the range is in utf8, the hyphen is replaced with | |
1754 | a certain range mark which will be handled by pmtrans() in op.c. | |
02aa26ce NT |
1755 | |
1756 | In double-quoted strings: | |
1757 | backslashes: | |
1758 | double-quoted style: \r and \n | |
94def140 TS |
1759 | constants: \x31 |
1760 | deprecated backrefs: \1 (in substitution replacements) | |
02aa26ce NT |
1761 | case and quoting: \U \Q \E |
1762 | stops on @ and $ | |
1763 | ||
1764 | scan_const does *not* construct ops to handle interpolated strings. | |
1765 | It stops processing as soon as it finds an embedded $ or @ variable | |
1766 | and leaves it to the caller to work out what's going on. | |
1767 | ||
94def140 TS |
1768 | embedded arrays (whether in pattern or not) could be: |
1769 | @foo, @::foo, @'foo, @{foo}, @$foo, @+, @-. | |
1770 | ||
1771 | $ in double-quoted strings must be the symbol of an embedded scalar. | |
02aa26ce NT |
1772 | |
1773 | $ in pattern could be $foo or could be tail anchor. Assumption: | |
1774 | it's a tail anchor if $ is the last thing in the string, or if it's | |
94def140 | 1775 | followed by one of "()| \r\n\t" |
02aa26ce NT |
1776 | |
1777 | \1 (backreferences) are turned into $1 | |
1778 | ||
1779 | The structure of the code is | |
1780 | while (there's a character to process) { | |
94def140 TS |
1781 | handle transliteration ranges |
1782 | skip regexp comments /(?#comment)/ and codes /(?{code})/ | |
1783 | skip #-initiated comments in //x patterns | |
1784 | check for embedded arrays | |
02aa26ce NT |
1785 | check for embedded scalars |
1786 | if (backslash) { | |
94def140 TS |
1787 | leave intact backslashes from leaveit (below) |
1788 | deprecate \1 in substitution replacements | |
02aa26ce NT |
1789 | handle string-changing backslashes \l \U \Q \E, etc. |
1790 | switch (what was escaped) { | |
94def140 TS |
1791 | handle \- in a transliteration (becomes a literal -) |
1792 | handle \132 (octal characters) | |
1793 | handle \x15 and \x{1234} (hex characters) | |
1794 | handle \N{name} (named characters) | |
1795 | handle \cV (control characters) | |
1796 | handle printf-style backslashes (\f, \r, \n, etc) | |
02aa26ce NT |
1797 | } (end switch) |
1798 | } (end if backslash) | |
1799 | } (end while character to read) | |
4e553d73 | 1800 | |
02aa26ce NT |
1801 | */ |
1802 | ||
76e3520e | 1803 | STATIC char * |
cea2e8a9 | 1804 | S_scan_const(pTHX_ char *start) |
79072805 | 1805 | { |
97aff369 | 1806 | dVAR; |
3280af22 | 1807 | register char *send = PL_bufend; /* end of the constant */ |
561b68a9 | 1808 | SV *sv = newSV(send - start); /* sv for the constant */ |
02aa26ce NT |
1809 | register char *s = start; /* start of the constant */ |
1810 | register char *d = SvPVX(sv); /* destination for copies */ | |
1811 | bool dorange = FALSE; /* are we in a translit range? */ | |
c2e66d9e | 1812 | bool didrange = FALSE; /* did we just finish a range? */ |
2b9d42f0 NIS |
1813 | I32 has_utf8 = FALSE; /* Output constant is UTF8 */ |
1814 | I32 this_utf8 = UTF; /* The source string is assumed to be UTF8 */ | |
012bcf8d | 1815 | UV uv; |
4c3a8340 TS |
1816 | #ifdef EBCDIC |
1817 | UV literal_endpoint = 0; | |
e294cc5d | 1818 | bool native_range = TRUE; /* turned to FALSE if the first endpoint is Unicode. */ |
4c3a8340 | 1819 | #endif |
012bcf8d | 1820 | |
2b9d42f0 NIS |
1821 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
1822 | /* If we are doing a trans and we know we want UTF8 set expectation */ | |
1823 | has_utf8 = PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF); | |
1824 | this_utf8 = PL_sublex_info.sub_op->op_private & (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
1825 | } | |
1826 | ||
1827 | ||
79072805 | 1828 | while (s < send || dorange) { |
02aa26ce | 1829 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 1830 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 1831 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 1832 | if (dorange) { |
1ba5c669 JH |
1833 | I32 i; /* current expanded character */ |
1834 | I32 min; /* first character in range */ | |
1835 | I32 max; /* last character in range */ | |
02aa26ce | 1836 | |
e294cc5d JH |
1837 | #ifdef EBCDIC |
1838 | UV uvmax = 0; | |
1839 | #endif | |
1840 | ||
1841 | if (has_utf8 | |
1842 | #ifdef EBCDIC | |
1843 | && !native_range | |
1844 | #endif | |
1845 | ) { | |
9d4ba2ae | 1846 | char * const c = (char*)utf8_hop((U8*)d, -1); |
8973db79 JH |
1847 | char *e = d++; |
1848 | while (e-- > c) | |
1849 | *(e + 1) = *e; | |
25716404 | 1850 | *c = (char)UTF_TO_NATIVE(0xff); |
8973db79 JH |
1851 | /* mark the range as done, and continue */ |
1852 | dorange = FALSE; | |
1853 | didrange = TRUE; | |
1854 | continue; | |
1855 | } | |
2b9d42f0 | 1856 | |
95a20fc0 | 1857 | i = d - SvPVX_const(sv); /* remember current offset */ |
e294cc5d JH |
1858 | #ifdef EBCDIC |
1859 | SvGROW(sv, | |
1860 | SvLEN(sv) + (has_utf8 ? | |
1861 | (512 - UTF_CONTINUATION_MARK + | |
1862 | UNISKIP(0x100)) | |
1863 | : 256)); | |
1864 | /* How many two-byte within 0..255: 128 in UTF-8, | |
1865 | * 96 in UTF-8-mod. */ | |
1866 | #else | |
9cbb5ea2 | 1867 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
e294cc5d | 1868 | #endif |
9cbb5ea2 | 1869 | d = SvPVX(sv) + i; /* refresh d after realloc */ |
e294cc5d JH |
1870 | #ifdef EBCDIC |
1871 | if (has_utf8) { | |
1872 | int j; | |
1873 | for (j = 0; j <= 1; j++) { | |
1874 | char * const c = (char*)utf8_hop((U8*)d, -1); | |
1875 | const UV uv = utf8n_to_uvchr((U8*)c, d - c, NULL, 0); | |
1876 | if (j) | |
1877 | min = (U8)uv; | |
1878 | else if (uv < 256) | |
1879 | max = (U8)uv; | |
1880 | else { | |
1881 | max = (U8)0xff; /* only to \xff */ | |
1882 | uvmax = uv; /* \x{100} to uvmax */ | |
1883 | } | |
1884 | d = c; /* eat endpoint chars */ | |
1885 | } | |
1886 | } | |
1887 | else { | |
1888 | #endif | |
1889 | d -= 2; /* eat the first char and the - */ | |
1890 | min = (U8)*d; /* first char in range */ | |
1891 | max = (U8)d[1]; /* last char in range */ | |
1892 | #ifdef EBCDIC | |
1893 | } | |
1894 | #endif | |
8ada0baa | 1895 | |
c2e66d9e | 1896 | if (min > max) { |
01ec43d0 | 1897 | Perl_croak(aTHX_ |
d1573ac7 | 1898 | "Invalid range \"%c-%c\" in transliteration operator", |
1ba5c669 | 1899 | (char)min, (char)max); |
c2e66d9e GS |
1900 | } |
1901 | ||
c7f1f016 | 1902 | #ifdef EBCDIC |
4c3a8340 TS |
1903 | if (literal_endpoint == 2 && |
1904 | ((isLOWER(min) && isLOWER(max)) || | |
1905 | (isUPPER(min) && isUPPER(max)))) { | |
8ada0baa JH |
1906 | if (isLOWER(min)) { |
1907 | for (i = min; i <= max; i++) | |
1908 | if (isLOWER(i)) | |
db42d148 | 1909 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1910 | } else { |
1911 | for (i = min; i <= max; i++) | |
1912 | if (isUPPER(i)) | |
db42d148 | 1913 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1914 | } |
1915 | } | |
1916 | else | |
1917 | #endif | |
1918 | for (i = min; i <= max; i++) | |
e294cc5d JH |
1919 | #ifdef EBCDIC |
1920 | if (has_utf8) { | |
1921 | const U8 ch = (U8)NATIVE_TO_UTF(i); | |
1922 | if (UNI_IS_INVARIANT(ch)) | |
1923 | *d++ = (U8)i; | |
1924 | else { | |
1925 | *d++ = (U8)UTF8_EIGHT_BIT_HI(ch); | |
1926 | *d++ = (U8)UTF8_EIGHT_BIT_LO(ch); | |
1927 | } | |
1928 | } | |
1929 | else | |
1930 | #endif | |
1931 | *d++ = (char)i; | |
1932 | ||
1933 | #ifdef EBCDIC | |
1934 | if (uvmax) { | |
1935 | d = (char*)uvchr_to_utf8((U8*)d, 0x100); | |
1936 | if (uvmax > 0x101) | |
1937 | *d++ = (char)UTF_TO_NATIVE(0xff); | |
1938 | if (uvmax > 0x100) | |
1939 | d = (char*)uvchr_to_utf8((U8*)d, uvmax); | |
1940 | } | |
1941 | #endif | |
02aa26ce NT |
1942 | |
1943 | /* mark the range as done, and continue */ | |
79072805 | 1944 | dorange = FALSE; |
01ec43d0 | 1945 | didrange = TRUE; |
4c3a8340 TS |
1946 | #ifdef EBCDIC |
1947 | literal_endpoint = 0; | |
1948 | #endif | |
79072805 | 1949 | continue; |
4e553d73 | 1950 | } |
02aa26ce NT |
1951 | |
1952 | /* range begins (ignore - as first or last char) */ | |
79072805 | 1953 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 1954 | if (didrange) { |
1fafa243 | 1955 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 1956 | } |
e294cc5d JH |
1957 | if (has_utf8 |
1958 | #ifdef EBCDIC | |
1959 | && !native_range | |
1960 | #endif | |
1961 | ) { | |
25716404 | 1962 | *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
1963 | s++; |
1964 | continue; | |
1965 | } | |
79072805 LW |
1966 | dorange = TRUE; |
1967 | s++; | |
01ec43d0 GS |
1968 | } |
1969 | else { | |
1970 | didrange = FALSE; | |
4c3a8340 TS |
1971 | #ifdef EBCDIC |
1972 | literal_endpoint = 0; | |
e294cc5d | 1973 | native_range = TRUE; |
4c3a8340 | 1974 | #endif |
01ec43d0 | 1975 | } |
79072805 | 1976 | } |
02aa26ce NT |
1977 | |
1978 | /* if we get here, we're not doing a transliteration */ | |
1979 | ||
0f5d15d6 IZ |
1980 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
1981 | except for the last char, which will be done separately. */ | |
3280af22 | 1982 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 | 1983 | if (s[2] == '#') { |
e994fd66 | 1984 | while (s+1 < send && *s != ')') |
db42d148 | 1985 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
155aba94 GS |
1986 | } |
1987 | else if (s[2] == '{' /* This should match regcomp.c */ | |
1988 | || ((s[2] == 'p' || s[2] == '?') && s[3] == '{')) | |
1989 | { | |
cc6b7395 | 1990 | I32 count = 1; |
0f5d15d6 | 1991 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
1992 | char c; |
1993 | ||
d9f97599 GS |
1994 | while (count && (c = *regparse)) { |
1995 | if (c == '\\' && regparse[1]) | |
1996 | regparse++; | |
4e553d73 | 1997 | else if (c == '{') |
cc6b7395 | 1998 | count++; |
4e553d73 | 1999 | else if (c == '}') |
cc6b7395 | 2000 | count--; |
d9f97599 | 2001 | regparse++; |
cc6b7395 | 2002 | } |
e994fd66 | 2003 | if (*regparse != ')') |
5bdf89e7 | 2004 | regparse--; /* Leave one char for continuation. */ |
0f5d15d6 | 2005 | while (s < regparse) |
db42d148 | 2006 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
cc6b7395 | 2007 | } |
748a9306 | 2008 | } |
02aa26ce NT |
2009 | |
2010 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
2011 | else if (*s == '#' && PL_lex_inpat && |
2012 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 | 2013 | while (s+1 < send && *s != '\n') |
db42d148 | 2014 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
748a9306 | 2015 | } |
02aa26ce | 2016 | |
5d1d4326 | 2017 | /* check for embedded arrays |
da6eedaa | 2018 | (@foo, @::foo, @'foo, @{foo}, @$foo, @+, @-) |
5d1d4326 | 2019 | */ |
1749ea0d TS |
2020 | else if (*s == '@' && s[1]) { |
2021 | if (isALNUM_lazy_if(s+1,UTF)) | |
2022 | break; | |
2023 | if (strchr(":'{$", s[1])) | |
2024 | break; | |
2025 | if (!PL_lex_inpat && (s[1] == '+' || s[1] == '-')) | |
2026 | break; /* in regexp, neither @+ nor @- are interpolated */ | |
2027 | } | |
02aa26ce NT |
2028 | |
2029 | /* check for embedded scalars. only stop if we're sure it's a | |
2030 | variable. | |
2031 | */ | |
79072805 | 2032 | else if (*s == '$') { |
3280af22 | 2033 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 2034 | break; |
6002328a | 2035 | if (s + 1 < send && !strchr("()| \r\n\t", s[1])) |
79072805 LW |
2036 | break; /* in regexp, $ might be tail anchor */ |
2037 | } | |
02aa26ce | 2038 | |
2b9d42f0 NIS |
2039 | /* End of else if chain - OP_TRANS rejoin rest */ |
2040 | ||
02aa26ce | 2041 | /* backslashes */ |
79072805 LW |
2042 | if (*s == '\\' && s+1 < send) { |
2043 | s++; | |
02aa26ce | 2044 | |
02aa26ce | 2045 | /* deprecate \1 in strings and substitution replacements */ |
3280af22 | 2046 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 2047 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 2048 | { |
599cee73 | 2049 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 2050 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s); |
79072805 LW |
2051 | *--s = '$'; |
2052 | break; | |
2053 | } | |
02aa26ce NT |
2054 | |
2055 | /* string-change backslash escapes */ | |
3280af22 | 2056 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
2057 | --s; |
2058 | break; | |
2059 | } | |
cc74c5bd TS |
2060 | /* skip any other backslash escapes in a pattern */ |
2061 | else if (PL_lex_inpat) { | |
2062 | *d++ = NATIVE_TO_NEED(has_utf8,'\\'); | |
2063 | goto default_action; | |
2064 | } | |
02aa26ce NT |
2065 | |
2066 | /* if we get here, it's either a quoted -, or a digit */ | |
79072805 | 2067 | switch (*s) { |
02aa26ce NT |
2068 | |
2069 | /* quoted - in transliterations */ | |
79072805 | 2070 | case '-': |
3280af22 | 2071 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
2072 | *d++ = *s++; |
2073 | continue; | |
2074 | } | |
2075 | /* FALL THROUGH */ | |
2076 | default: | |
11b8faa4 | 2077 | { |
86f97054 | 2078 | if ((isALPHA(*s) || isDIGIT(*s)) && |
041457d9 | 2079 | ckWARN(WARN_MISC)) |
9014280d | 2080 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
e294cc5d JH |
2081 | "Unrecognized escape \\%c passed through", |
2082 | *s); | |
11b8faa4 | 2083 | /* default action is to copy the quoted character */ |
f9a63242 | 2084 | goto default_action; |
11b8faa4 | 2085 | } |
02aa26ce NT |
2086 | |
2087 | /* \132 indicates an octal constant */ | |
79072805 LW |
2088 | case '0': case '1': case '2': case '3': |
2089 | case '4': case '5': case '6': case '7': | |
ba210ebe | 2090 | { |
53305cf1 NC |
2091 | I32 flags = 0; |
2092 | STRLEN len = 3; | |
2093 | uv = grok_oct(s, &len, &flags, NULL); | |
ba210ebe JH |
2094 | s += len; |
2095 | } | |
012bcf8d | 2096 | goto NUM_ESCAPE_INSERT; |
02aa26ce NT |
2097 | |
2098 | /* \x24 indicates a hex constant */ | |
79072805 | 2099 | case 'x': |
a0ed51b3 LW |
2100 | ++s; |
2101 | if (*s == '{') { | |
9d4ba2ae | 2102 | char* const e = strchr(s, '}'); |
a4c04bdc NC |
2103 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
2104 | PERL_SCAN_DISALLOW_PREFIX; | |
53305cf1 | 2105 | STRLEN len; |
355860ce | 2106 | |
53305cf1 | 2107 | ++s; |
adaeee49 | 2108 | if (!e) { |
a0ed51b3 | 2109 | yyerror("Missing right brace on \\x{}"); |
355860ce | 2110 | continue; |
ba210ebe | 2111 | } |
53305cf1 NC |
2112 | len = e - s; |
2113 | uv = grok_hex(s, &len, &flags, NULL); | |
ba210ebe | 2114 | s = e + 1; |
a0ed51b3 LW |
2115 | } |
2116 | else { | |
ba210ebe | 2117 | { |
53305cf1 | 2118 | STRLEN len = 2; |
a4c04bdc | 2119 | I32 flags = PERL_SCAN_DISALLOW_PREFIX; |
53305cf1 | 2120 | uv = grok_hex(s, &len, &flags, NULL); |
ba210ebe JH |
2121 | s += len; |
2122 | } | |
012bcf8d GS |
2123 | } |
2124 | ||
2125 | NUM_ESCAPE_INSERT: | |
2126 | /* Insert oct or hex escaped character. | |
301d3d20 | 2127 | * There will always enough room in sv since such |
db42d148 | 2128 | * escapes will be longer than any UTF-8 sequence |
301d3d20 | 2129 | * they can end up as. */ |
ba7cea30 | 2130 | |
c7f1f016 NIS |
2131 | /* We need to map to chars to ASCII before doing the tests |
2132 | to cover EBCDIC | |
2133 | */ | |
c4d5f83a | 2134 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(uv))) { |
9aa983d2 | 2135 | if (!has_utf8 && uv > 255) { |
301d3d20 JH |
2136 | /* Might need to recode whatever we have |
2137 | * accumulated so far if it contains any | |
2138 | * hibit chars. | |
2139 | * | |
2140 | * (Can't we keep track of that and avoid | |
2141 | * this rescan? --jhi) | |
012bcf8d | 2142 | */ |
c7f1f016 | 2143 | int hicount = 0; |
63cd0674 NIS |
2144 | U8 *c; |
2145 | for (c = (U8 *) SvPVX(sv); c < (U8 *)d; c++) { | |
c4d5f83a | 2146 | if (!NATIVE_IS_INVARIANT(*c)) { |
012bcf8d | 2147 | hicount++; |
db42d148 | 2148 | } |
012bcf8d | 2149 | } |
63cd0674 | 2150 | if (hicount) { |
9d4ba2ae | 2151 | const STRLEN offset = d - SvPVX_const(sv); |
db42d148 NIS |
2152 | U8 *src, *dst; |
2153 | d = SvGROW(sv, SvLEN(sv) + hicount + 1) + offset; | |
2154 | src = (U8 *)d - 1; | |
2155 | dst = src+hicount; | |
2156 | d += hicount; | |
cfd0369c | 2157 | while (src >= (const U8 *)SvPVX_const(sv)) { |
c4d5f83a | 2158 | if (!NATIVE_IS_INVARIANT(*src)) { |
9d4ba2ae | 2159 | const U8 ch = NATIVE_TO_ASCII(*src); |
eb160463 GS |
2160 | *dst-- = (U8)UTF8_EIGHT_BIT_LO(ch); |
2161 | *dst-- = (U8)UTF8_EIGHT_BIT_HI(ch); | |
012bcf8d GS |
2162 | } |
2163 | else { | |
63cd0674 | 2164 | *dst-- = *src; |
012bcf8d | 2165 | } |
c7f1f016 | 2166 | src--; |
012bcf8d GS |
2167 | } |
2168 | } | |
2169 | } | |
2170 | ||
9aa983d2 | 2171 | if (has_utf8 || uv > 255) { |
9041c2e3 | 2172 | d = (char*)uvchr_to_utf8((U8*)d, uv); |
4e553d73 | 2173 | has_utf8 = TRUE; |
f9a63242 JH |
2174 | if (PL_lex_inwhat == OP_TRANS && |
2175 | PL_sublex_info.sub_op) { | |
2176 | PL_sublex_info.sub_op->op_private |= | |
2177 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
2178 | : OPpTRANS_TO_UTF); | |
f9a63242 | 2179 | } |
e294cc5d JH |
2180 | #ifdef EBCDIC |
2181 | if (uv > 255 && !dorange) | |
2182 | native_range = FALSE; | |
2183 | #endif | |
012bcf8d | 2184 | } |
a0ed51b3 | 2185 | else { |
012bcf8d | 2186 | *d++ = (char)uv; |
a0ed51b3 | 2187 | } |
012bcf8d GS |
2188 | } |
2189 | else { | |
c4d5f83a | 2190 | *d++ = (char) uv; |
a0ed51b3 | 2191 | } |
79072805 | 2192 | continue; |
02aa26ce | 2193 | |
b239daa5 | 2194 | /* \N{LATIN SMALL LETTER A} is a named character */ |
4a2d328f | 2195 | case 'N': |
55eda711 | 2196 | ++s; |
423cee85 JH |
2197 | if (*s == '{') { |
2198 | char* e = strchr(s, '}'); | |
155aba94 | 2199 | SV *res; |
423cee85 | 2200 | STRLEN len; |
cfd0369c | 2201 | const char *str; |
fc8cd66c | 2202 | SV *type; |
4e553d73 | 2203 | |
423cee85 | 2204 | if (!e) { |
5777a3f7 | 2205 | yyerror("Missing right brace on \\N{}"); |
423cee85 JH |
2206 | e = s - 1; |
2207 | goto cont_scan; | |
2208 | } | |
dbc0d4f2 JH |
2209 | if (e > s + 2 && s[1] == 'U' && s[2] == '+') { |
2210 | /* \N{U+...} */ | |
2211 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | | |
2212 | PERL_SCAN_DISALLOW_PREFIX; | |
2213 | s += 3; | |
2214 | len = e - s; | |
2215 | uv = grok_hex(s, &len, &flags, NULL); | |
b57a0404 JH |
2216 | if ( e > s && len != (STRLEN)(e - s) ) { |
2217 | uv = 0xFFFD; | |
fc8cd66c | 2218 | } |
dbc0d4f2 JH |
2219 | s = e + 1; |
2220 | goto NUM_ESCAPE_INSERT; | |
2221 | } | |
55eda711 | 2222 | res = newSVpvn(s + 1, e - s - 1); |
fc8cd66c | 2223 | type = newSVpvn(s - 2,e - s + 3); |
bd61b366 | 2224 | res = new_constant( NULL, 0, "charnames", |
fc8cd66c YO |
2225 | res, NULL, SvPVX(type) ); |
2226 | SvREFCNT_dec(type); | |
f9a63242 JH |
2227 | if (has_utf8) |
2228 | sv_utf8_upgrade(res); | |
cfd0369c | 2229 | str = SvPV_const(res,len); |
1c47067b JH |
2230 | #ifdef EBCDIC_NEVER_MIND |
2231 | /* charnames uses pack U and that has been | |
2232 | * recently changed to do the below uni->native | |
2233 | * mapping, so this would be redundant (and wrong, | |
2234 | * the code point would be doubly converted). | |
2235 | * But leave this in just in case the pack U change | |
2236 | * gets revoked, but the semantics is still | |
2237 | * desireable for charnames. --jhi */ | |
cddc7ef4 | 2238 | { |
cfd0369c | 2239 | UV uv = utf8_to_uvchr((const U8*)str, 0); |
cddc7ef4 JH |
2240 | |
2241 | if (uv < 0x100) { | |
89ebb4a3 | 2242 | U8 tmpbuf[UTF8_MAXBYTES+1], *d; |
cddc7ef4 JH |
2243 | |
2244 | d = uvchr_to_utf8(tmpbuf, UNI_TO_NATIVE(uv)); | |
2245 | sv_setpvn(res, (char *)tmpbuf, d - tmpbuf); | |
cfd0369c | 2246 | str = SvPV_const(res, len); |
cddc7ef4 JH |
2247 | } |
2248 | } | |
2249 | #endif | |
89491803 | 2250 | if (!has_utf8 && SvUTF8(res)) { |
9d4ba2ae | 2251 | const char * const ostart = SvPVX_const(sv); |
f08d6ad9 GS |
2252 | SvCUR_set(sv, d - ostart); |
2253 | SvPOK_on(sv); | |
e4f3eed8 | 2254 | *d = '\0'; |
f08d6ad9 | 2255 | sv_utf8_upgrade(sv); |
d2f449dd | 2256 | /* this just broke our allocation above... */ |
eb160463 | 2257 | SvGROW(sv, (STRLEN)(send - start)); |
f08d6ad9 | 2258 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 2259 | has_utf8 = TRUE; |
f08d6ad9 | 2260 | } |
eb160463 | 2261 | if (len > (STRLEN)(e - s + 4)) { /* I _guess_ 4 is \N{} --jhi */ |
9d4ba2ae | 2262 | const char * const odest = SvPVX_const(sv); |
423cee85 | 2263 | |
8973db79 | 2264 | SvGROW(sv, (SvLEN(sv) + len - (e - s + 4))); |
423cee85 JH |
2265 | d = SvPVX(sv) + (d - odest); |
2266 | } | |
e294cc5d JH |
2267 | #ifdef EBCDIC |
2268 | if (!dorange) | |
2269 | native_range = FALSE; /* \N{} is guessed to be Unicode */ | |
2270 | #endif | |
423cee85 JH |
2271 | Copy(str, d, len, char); |
2272 | d += len; | |
2273 | SvREFCNT_dec(res); | |
2274 | cont_scan: | |
2275 | s = e + 1; | |
2276 | } | |
2277 | else | |
5777a3f7 | 2278 | yyerror("Missing braces on \\N{}"); |
423cee85 JH |
2279 | continue; |
2280 | ||
02aa26ce | 2281 | /* \c is a control character */ |
79072805 LW |
2282 | case 'c': |
2283 | s++; | |
961ce445 | 2284 | if (s < send) { |
ba210ebe | 2285 | U8 c = *s++; |
c7f1f016 NIS |
2286 | #ifdef EBCDIC |
2287 | if (isLOWER(c)) | |
2288 | c = toUPPER(c); | |
2289 | #endif | |
db42d148 | 2290 | *d++ = NATIVE_TO_NEED(has_utf8,toCTRL(c)); |
ba210ebe | 2291 | } |
961ce445 RGS |
2292 | else { |
2293 | yyerror("Missing control char name in \\c"); | |
2294 | } | |
79072805 | 2295 | continue; |
02aa26ce NT |
2296 | |
2297 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 | 2298 | case 'b': |
db42d148 | 2299 | *d++ = NATIVE_TO_NEED(has_utf8,'\b'); |
79072805 LW |
2300 | break; |
2301 | case 'n': | |
db42d148 | 2302 | *d++ = NATIVE_TO_NEED(has_utf8,'\n'); |
79072805 LW |
2303 | break; |
2304 | case 'r': | |
db42d148 | 2305 | *d++ = NATIVE_TO_NEED(has_utf8,'\r'); |
79072805 LW |
2306 | break; |
2307 | case 'f': | |
db42d148 | 2308 | *d++ = NATIVE_TO_NEED(has_utf8,'\f'); |
79072805 LW |
2309 | break; |
2310 | case 't': | |
db42d148 | 2311 | *d++ = NATIVE_TO_NEED(has_utf8,'\t'); |
79072805 | 2312 | break; |
34a3fe2a | 2313 | case 'e': |
db42d148 | 2314 | *d++ = ASCII_TO_NEED(has_utf8,'\033'); |
34a3fe2a PP |
2315 | break; |
2316 | case 'a': | |
db42d148 | 2317 | *d++ = ASCII_TO_NEED(has_utf8,'\007'); |
79072805 | 2318 | break; |
02aa26ce NT |
2319 | } /* end switch */ |
2320 | ||
79072805 LW |
2321 | s++; |
2322 | continue; | |
02aa26ce | 2323 | } /* end if (backslash) */ |
4c3a8340 TS |
2324 | #ifdef EBCDIC |
2325 | else | |
2326 | literal_endpoint++; | |
2327 | #endif | |
02aa26ce | 2328 | |
f9a63242 | 2329 | default_action: |
2b9d42f0 NIS |
2330 | /* If we started with encoded form, or already know we want it |
2331 | and then encode the next character */ | |
2332 | if ((has_utf8 || this_utf8) && !NATIVE_IS_INVARIANT((U8)(*s))) { | |
2333 | STRLEN len = 1; | |
5f66b61c AL |
2334 | const UV nextuv = (this_utf8) ? utf8n_to_uvchr((U8*)s, send - s, &len, 0) : (UV) ((U8) *s); |
2335 | const STRLEN need = UNISKIP(NATIVE_TO_UNI(nextuv)); | |
2b9d42f0 NIS |
2336 | s += len; |
2337 | if (need > len) { | |
2338 | /* encoded value larger than old, need extra space (NOTE: SvCUR() not set here) */ | |
9d4ba2ae | 2339 | const STRLEN off = d - SvPVX_const(sv); |
2b9d42f0 NIS |
2340 | d = SvGROW(sv, SvLEN(sv) + (need-len)) + off; |
2341 | } | |
5f66b61c | 2342 | d = (char*)uvchr_to_utf8((U8*)d, nextuv); |
2b9d42f0 | 2343 | has_utf8 = TRUE; |
e294cc5d JH |
2344 | #ifdef EBCDIC |
2345 | if (uv > 255 && !dorange) | |
2346 | native_range = FALSE; | |
2347 | #endif | |
2b9d42f0 NIS |
2348 | } |
2349 | else { | |
2350 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
2351 | } | |
02aa26ce NT |
2352 | } /* while loop to process each character */ |
2353 | ||
2354 | /* terminate the string and set up the sv */ | |
79072805 | 2355 | *d = '\0'; |
95a20fc0 | 2356 | SvCUR_set(sv, d - SvPVX_const(sv)); |
2b9d42f0 | 2357 | if (SvCUR(sv) >= SvLEN(sv)) |
d0063567 | 2358 | Perl_croak(aTHX_ "panic: constant overflowed allocated space"); |
2b9d42f0 | 2359 | |
79072805 | 2360 | SvPOK_on(sv); |
9f4817db | 2361 | if (PL_encoding && !has_utf8) { |
d0063567 DK |
2362 | sv_recode_to_utf8(sv, PL_encoding); |
2363 | if (SvUTF8(sv)) | |
2364 | has_utf8 = TRUE; | |
9f4817db | 2365 | } |
2b9d42f0 | 2366 | if (has_utf8) { |
7e2040f0 | 2367 | SvUTF8_on(sv); |
2b9d42f0 | 2368 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
d0063567 | 2369 | PL_sublex_info.sub_op->op_private |= |
2b9d42f0 NIS |
2370 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); |
2371 | } | |
2372 | } | |
79072805 | 2373 | |
02aa26ce | 2374 | /* shrink the sv if we allocated more than we used */ |
79072805 | 2375 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
1da4ca5f | 2376 | SvPV_shrink_to_cur(sv); |
79072805 | 2377 | } |
02aa26ce | 2378 | |
9b599b2a | 2379 | /* return the substring (via yylval) only if we parsed anything */ |
3280af22 NIS |
2380 | if (s > PL_bufptr) { |
2381 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) | |
10edeb5d JH |
2382 | sv = new_constant(start, s - start, |
2383 | (const char *)(PL_lex_inpat ? "qr" : "q"), | |
a0714e2c | 2384 | sv, NULL, |
10edeb5d JH |
2385 | (const char *) |
2386 | (( PL_lex_inwhat == OP_TRANS | |
2387 | ? "tr" | |
2388 | : ( (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) | |
2389 | ? "s" | |
2390 | : "qq")))); | |
79072805 | 2391 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 2392 | } else |
8990e307 | 2393 | SvREFCNT_dec(sv); |
79072805 LW |
2394 | return s; |
2395 | } | |
2396 | ||
ffb4593c NT |
2397 | /* S_intuit_more |
2398 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
2399 | * FALSE otherwise. | |
ffb4593c NT |
2400 | * |
2401 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
2402 | * | |
2403 | * ->[ and ->{ return TRUE | |
2404 | * { and [ outside a pattern are always subscripts, so return TRUE | |
2405 | * if we're outside a pattern and it's not { or [, then return FALSE | |
2406 | * if we're in a pattern and the first char is a { | |
2407 | * {4,5} (any digits around the comma) returns FALSE | |
2408 | * if we're in a pattern and the first char is a [ | |
2409 | * [] returns FALSE | |
2410 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
2411 | * character class or not. It has to deal with things like | |
2412 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
2413 | * anything else returns TRUE | |
2414 | */ | |
2415 | ||
9cbb5ea2 GS |
2416 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
2417 | ||
76e3520e | 2418 | STATIC int |
cea2e8a9 | 2419 | S_intuit_more(pTHX_ register char *s) |
79072805 | 2420 | { |
97aff369 | 2421 | dVAR; |
3280af22 | 2422 | if (PL_lex_brackets) |
79072805 LW |
2423 | return TRUE; |
2424 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
2425 | return TRUE; | |
2426 | if (*s != '{' && *s != '[') | |
2427 | return FALSE; | |
3280af22 | 2428 | if (!PL_lex_inpat) |
79072805 LW |
2429 | return TRUE; |
2430 | ||
2431 | /* In a pattern, so maybe we have {n,m}. */ | |
2432 | if (*s == '{') { | |
2433 | s++; | |
2434 | if (!isDIGIT(*s)) | |
2435 | return TRUE; | |
2436 | while (isDIGIT(*s)) | |
2437 | s++; | |
2438 | if (*s == ',') | |
2439 | s++; | |
2440 | while (isDIGIT(*s)) | |
2441 | s++; | |
2442 | if (*s == '}') | |
2443 | return FALSE; | |
2444 | return TRUE; | |
2445 | ||
2446 | } | |
2447 | ||
2448 | /* On the other hand, maybe we have a character class */ | |
2449 | ||
2450 | s++; | |
2451 | if (*s == ']' || *s == '^') | |
2452 | return FALSE; | |
2453 | else { | |
ffb4593c | 2454 | /* this is terrifying, and it works */ |
79072805 LW |
2455 | int weight = 2; /* let's weigh the evidence */ |
2456 | char seen[256]; | |
f27ffc4a | 2457 | unsigned char un_char = 255, last_un_char; |
9d4ba2ae | 2458 | const char * const send = strchr(s,']'); |
3280af22 | 2459 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
2460 | |
2461 | if (!send) /* has to be an expression */ | |
2462 | return TRUE; | |
2463 | ||
2464 | Zero(seen,256,char); | |
2465 | if (*s == '$') | |
2466 | weight -= 3; | |
2467 | else if (isDIGIT(*s)) { | |
2468 | if (s[1] != ']') { | |
2469 | if (isDIGIT(s[1]) && s[2] == ']') | |
2470 | weight -= 10; | |
2471 | } | |
2472 | else | |
2473 | weight -= 100; | |
2474 | } | |
2475 | for (; s < send; s++) { | |
2476 | last_un_char = un_char; | |
2477 | un_char = (unsigned char)*s; | |
2478 | switch (*s) { | |
2479 | case '@': | |
2480 | case '&': | |
2481 | case '$': | |
2482 | weight -= seen[un_char] * 10; | |
7e2040f0 | 2483 | if (isALNUM_lazy_if(s+1,UTF)) { |
90e5519e | 2484 | int len; |
8903cb82 | 2485 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
90e5519e NC |
2486 | len = (int)strlen(tmpbuf); |
2487 | if (len > 1 && gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PV)) | |
79072805 LW |
2488 | weight -= 100; |
2489 | else | |
2490 | weight -= 10; | |
2491 | } | |
2492 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
2493 | strchr("[#!%*<>()-=",s[1])) { |
2494 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
2495 | weight -= 10; |
2496 | else | |
2497 | weight -= 1; | |
2498 | } | |
2499 | break; | |
2500 | case '\\': | |
2501 | un_char = 254; | |
2502 | if (s[1]) { | |
93a17b20 | 2503 | if (strchr("wds]",s[1])) |
79072805 | 2504 | weight += 100; |
10edeb5d | 2505 | else if (seen[(U8)'\''] || seen[(U8)'"']) |
79072805 | 2506 | weight += 1; |
93a17b20 | 2507 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
2508 | weight += 40; |
2509 | else if (isDIGIT(s[1])) { | |
2510 | weight += 40; | |
2511 | while (s[1] && isDIGIT(s[1])) | |
2512 | s++; | |
2513 | } | |
2514 | } | |
2515 | else | |
2516 | weight += 100; | |
2517 | break; | |
2518 | case '-': | |
2519 | if (s[1] == '\\') | |
2520 | weight += 50; | |
93a17b20 | 2521 | if (strchr("aA01! ",last_un_char)) |
79072805 | 2522 | weight += 30; |
93a17b20 | 2523 | if (strchr("zZ79~",s[1])) |
79072805 | 2524 | weight += 30; |
f27ffc4a GS |
2525 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
2526 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
2527 | break; |
2528 | default: | |
3792a11b NC |
2529 | if (!isALNUM(last_un_char) |
2530 | && !(last_un_char == '$' || last_un_char == '@' | |
2531 | || last_un_char == '&') | |
2532 | && isALPHA(*s) && s[1] && isALPHA(s[1])) { | |
79072805 LW |
2533 | char *d = tmpbuf; |
2534 | while (isALPHA(*s)) | |
2535 | *d++ = *s++; | |
2536 | *d = '\0'; | |
5458a98a | 2537 | if (keyword(tmpbuf, d - tmpbuf, 0)) |
79072805 LW |
2538 | weight -= 150; |
2539 | } | |
2540 | if (un_char == last_un_char + 1) | |
2541 | weight += 5; | |
2542 | weight -= seen[un_char]; | |
2543 | break; | |
2544 | } | |
2545 | seen[un_char]++; | |
2546 | } | |
2547 | if (weight >= 0) /* probably a character class */ | |
2548 | return FALSE; | |
2549 | } | |
2550 | ||
2551 | return TRUE; | |
2552 | } | |
ffed7fef | 2553 | |
ffb4593c NT |
2554 | /* |
2555 | * S_intuit_method | |
2556 | * | |
2557 | * Does all the checking to disambiguate | |
2558 | * foo bar | |
2559 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
2560 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
2561 | * | |
2562 | * First argument is the stuff after the first token, e.g. "bar". | |
2563 | * | |
2564 | * Not a method if bar is a filehandle. | |
2565 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
2566 | * Not a method if it's really "Foo $bar" | |
2567 | * Method if it's "foo $bar" | |
2568 | * Not a method if it's really "print foo $bar" | |
2569 | * Method if it's really "foo package::" (interpreted as package->foo) | |
8f8cf39c | 2570 | * Not a method if bar is known to be a subroutine ("sub bar; foo bar") |
3cb0bbe5 | 2571 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
2572 | * => |
2573 | */ | |
2574 | ||
76e3520e | 2575 | STATIC int |
62d55b22 | 2576 | S_intuit_method(pTHX_ char *start, GV *gv, CV *cv) |
a0d0e21e | 2577 | { |
97aff369 | 2578 | dVAR; |
a0d0e21e | 2579 | char *s = start + (*start == '$'); |
3280af22 | 2580 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
2581 | STRLEN len; |
2582 | GV* indirgv; | |
5db06880 NC |
2583 | #ifdef PERL_MAD |
2584 | int soff; | |
2585 | #endif | |
a0d0e21e LW |
2586 | |
2587 | if (gv) { | |
62d55b22 | 2588 | if (SvTYPE(gv) == SVt_PVGV && GvIO(gv)) |
a0d0e21e | 2589 | return 0; |
62d55b22 NC |
2590 | if (cv) { |
2591 | if (SvPOK(cv)) { | |
2592 | const char *proto = SvPVX_const(cv); | |
2593 | if (proto) { | |
2594 | if (*proto == ';') | |
2595 | proto++; | |
2596 | if (*proto == '*') | |
2597 | return 0; | |
2598 | } | |
b6c543e3 IZ |
2599 | } |
2600 | } else | |
c35e046a | 2601 | gv = NULL; |
a0d0e21e | 2602 | } |
8903cb82 | 2603 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
2604 | /* start is the beginning of the possible filehandle/object, |
2605 | * and s is the end of it | |
2606 | * tmpbuf is a copy of it | |
2607 | */ | |
2608 | ||
a0d0e21e | 2609 | if (*start == '$') { |
3280af22 | 2610 | if (gv || PL_last_lop_op == OP_PRINT || isUPPER(*PL_tokenbuf)) |
a0d0e21e | 2611 | return 0; |
5db06880 NC |
2612 | #ifdef PERL_MAD |
2613 | len = start - SvPVX(PL_linestr); | |
2614 | #endif | |
29595ff2 | 2615 | s = PEEKSPACE(s); |
f0092767 | 2616 | #ifdef PERL_MAD |
5db06880 NC |
2617 | start = SvPVX(PL_linestr) + len; |
2618 | #endif | |
3280af22 NIS |
2619 | PL_bufptr = start; |
2620 | PL_expect = XREF; | |
a0d0e21e LW |
2621 | return *s == '(' ? FUNCMETH : METHOD; |
2622 | } | |
5458a98a | 2623 | if (!keyword(tmpbuf, len, 0)) { |
c3e0f903 GS |
2624 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
2625 | len -= 2; | |
2626 | tmpbuf[len] = '\0'; | |
5db06880 NC |
2627 | #ifdef PERL_MAD |
2628 | soff = s - SvPVX(PL_linestr); | |
2629 | #endif | |
c3e0f903 GS |
2630 | goto bare_package; |
2631 | } | |
90e5519e | 2632 | indirgv = gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PVCV); |
8ebc5c01 | 2633 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
2634 | return 0; |
2635 | /* filehandle or package name makes it a method */ | |
89bfa8cd | 2636 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) { |
5db06880 NC |
2637 | #ifdef PERL_MAD |
2638 | soff = s - SvPVX(PL_linestr); | |
2639 | #endif | |
29595ff2 | 2640 | s = PEEKSPACE(s); |
3280af22 | 2641 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 2642 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 2643 | bare_package: |
cd81e915 | 2644 | start_force(PL_curforce); |
9ded7720 | 2645 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, |
79cb57f6 | 2646 | newSVpvn(tmpbuf,len)); |
9ded7720 | 2647 | NEXTVAL_NEXTTOKE.opval->op_private = OPpCONST_BARE; |
5db06880 NC |
2648 | if (PL_madskills) |
2649 | curmad('X', newSVpvn(start,SvPVX(PL_linestr) + soff - start)); | |
3280af22 | 2650 | PL_expect = XTERM; |
a0d0e21e | 2651 | force_next(WORD); |
3280af22 | 2652 | PL_bufptr = s; |
5db06880 NC |
2653 | #ifdef PERL_MAD |
2654 | PL_bufptr = SvPVX(PL_linestr) + soff; /* restart before space */ | |
2655 | #endif | |
a0d0e21e LW |
2656 | return *s == '(' ? FUNCMETH : METHOD; |
2657 | } | |
2658 | } | |
2659 | return 0; | |
2660 | } | |
2661 | ||
ffb4593c NT |
2662 | /* |
2663 | * S_incl_perldb | |
2664 | * Return a string of Perl code to load the debugger. If PERL5DB | |
2665 | * is set, it will return the contents of that, otherwise a | |
2666 | * compile-time require of perl5db.pl. | |
2667 | */ | |
2668 | ||
bfed75c6 | 2669 | STATIC const char* |
cea2e8a9 | 2670 | S_incl_perldb(pTHX) |
a0d0e21e | 2671 | { |
97aff369 | 2672 | dVAR; |
3280af22 | 2673 | if (PL_perldb) { |
9d4ba2ae | 2674 | const char * const pdb = PerlEnv_getenv("PERL5DB"); |
a0d0e21e LW |
2675 | |
2676 | if (pdb) | |
2677 | return pdb; | |
93189314 | 2678 | SETERRNO(0,SS_NORMAL); |
a0d0e21e LW |
2679 | return "BEGIN { require 'perl5db.pl' }"; |
2680 | } | |
2681 | return ""; | |
2682 | } | |
2683 | ||
2684 | ||
16d20bd9 | 2685 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 2686 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
2687 | * Note that the filter function only applies to the current source file |
2688 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
2689 | * | |
2690 | * The datasv parameter (which may be NULL) can be used to pass | |
2691 | * private data to this instance of the filter. The filter function | |
2692 | * can recover the SV using the FILTER_DATA macro and use it to | |
2693 | * store private buffers and state information. | |
2694 | * | |
2695 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 2696 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 2697 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
2698 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
2699 | * private use must be set using malloc'd pointers. | |
2700 | */ | |
16d20bd9 AD |
2701 | |
2702 | SV * | |
864dbfa3 | 2703 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 2704 | { |
97aff369 | 2705 | dVAR; |
f4c556ac | 2706 | if (!funcp) |
a0714e2c | 2707 | return NULL; |
f4c556ac | 2708 | |
3280af22 NIS |
2709 | if (!PL_rsfp_filters) |
2710 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 2711 | if (!datasv) |
561b68a9 | 2712 | datasv = newSV(0); |
862a34c6 | 2713 | SvUPGRADE(datasv, SVt_PVIO); |
8141890a | 2714 | IoANY(datasv) = FPTR2DPTR(void *, funcp); /* stash funcp into spare field */ |
e0c19803 | 2715 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac | 2716 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
55662e27 JH |
2717 | FPTR2DPTR(void *, IoANY(datasv)), |
2718 | SvPV_nolen(datasv))); | |
3280af22 NIS |
2719 | av_unshift(PL_rsfp_filters, 1); |
2720 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
2721 | return(datasv); |
2722 | } | |
4e553d73 | 2723 | |
16d20bd9 AD |
2724 | |
2725 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 2726 | void |
864dbfa3 | 2727 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 2728 | { |
97aff369 | 2729 | dVAR; |
e0c19803 | 2730 | SV *datasv; |
24801a4b | 2731 | |
33073adb | 2732 | #ifdef DEBUGGING |
55662e27 JH |
2733 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", |
2734 | FPTR2DPTR(void*, funcp))); | |
33073adb | 2735 | #endif |
3280af22 | 2736 | if (!PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
2737 | return; |
2738 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 2739 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
8141890a | 2740 | if (IoANY(datasv) == FPTR2DPTR(void *, funcp)) { |
e0c19803 | 2741 | IoFLAGS(datasv) &= ~IOf_FAKE_DIRP; |
4755096e | 2742 | IoANY(datasv) = (void *)NULL; |
3280af22 | 2743 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 2744 | |
16d20bd9 AD |
2745 | return; |
2746 | } | |
2747 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 2748 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
2749 | } |
2750 | ||
2751 | ||
1de9afcd RGS |
2752 | /* Invoke the idxth filter function for the current rsfp. */ |
2753 | /* maxlen 0 = read one text line */ | |
16d20bd9 | 2754 | I32 |
864dbfa3 | 2755 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
a0d0e21e | 2756 | { |
97aff369 | 2757 | dVAR; |
16d20bd9 AD |
2758 | filter_t funcp; |
2759 | SV *datasv = NULL; | |
f482118e NC |
2760 | /* This API is bad. It should have been using unsigned int for maxlen. |
2761 | Not sure if we want to change the API, but if not we should sanity | |
2762 | check the value here. */ | |
39cd7a59 NC |
2763 | const unsigned int correct_length |
2764 | = maxlen < 0 ? | |
2765 | #ifdef PERL_MICRO | |
2766 | 0x7FFFFFFF | |
2767 | #else | |
2768 | INT_MAX | |
2769 | #endif | |
2770 | : maxlen; | |
e50aee73 | 2771 | |
3280af22 | 2772 | if (!PL_rsfp_filters) |
16d20bd9 | 2773 | return -1; |
1de9afcd | 2774 | if (idx > AvFILLp(PL_rsfp_filters)) { /* Any more filters? */ |
16d20bd9 AD |
2775 | /* Provide a default input filter to make life easy. */ |
2776 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
2777 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2778 | "filter_read %d: from rsfp\n", idx)); | |
f482118e | 2779 | if (correct_length) { |
16d20bd9 AD |
2780 | /* Want a block */ |
2781 | int len ; | |
f54cb97a | 2782 | const int old_len = SvCUR(buf_sv); |
16d20bd9 AD |
2783 | |
2784 | /* ensure buf_sv is large enough */ | |
f482118e NC |
2785 | SvGROW(buf_sv, (STRLEN)(old_len + correct_length)) ; |
2786 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, | |
2787 | correct_length)) <= 0) { | |
3280af22 | 2788 | if (PerlIO_error(PL_rsfp)) |
37120919 AD |
2789 | return -1; /* error */ |
2790 | else | |
2791 | return 0 ; /* end of file */ | |
2792 | } | |
16d20bd9 AD |
2793 | SvCUR_set(buf_sv, old_len + len) ; |
2794 | } else { | |
2795 | /* Want a line */ | |
3280af22 NIS |
2796 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
2797 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
2798 | return -1; /* error */ |
2799 | else | |
2800 | return 0 ; /* end of file */ | |
2801 | } | |
16d20bd9 AD |
2802 | } |
2803 | return SvCUR(buf_sv); | |
2804 | } | |
2805 | /* Skip this filter slot if filter has been deleted */ | |
1de9afcd | 2806 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef) { |
f4c556ac GS |
2807 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2808 | "filter_read %d: skipped (filter deleted)\n", | |
2809 | idx)); | |
f482118e | 2810 | return FILTER_READ(idx+1, buf_sv, correct_length); /* recurse */ |
16d20bd9 AD |
2811 | } |
2812 | /* Get function pointer hidden within datasv */ | |
8141890a | 2813 | funcp = DPTR2FPTR(filter_t, IoANY(datasv)); |
f4c556ac GS |
2814 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2815 | "filter_read %d: via function %p (%s)\n", | |
ca0270c4 | 2816 | idx, (void*)datasv, SvPV_nolen_const(datasv))); |
16d20bd9 AD |
2817 | /* Call function. The function is expected to */ |
2818 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 2819 | /* Return: <0:error, =0:eof, >0:not eof */ |
f482118e | 2820 | return (*funcp)(aTHX_ idx, buf_sv, correct_length); |
16d20bd9 AD |
2821 | } |
2822 | ||
76e3520e | 2823 | STATIC char * |
cea2e8a9 | 2824 | S_filter_gets(pTHX_ register SV *sv, register PerlIO *fp, STRLEN append) |
16d20bd9 | 2825 | { |
97aff369 | 2826 | dVAR; |
c39cd008 | 2827 | #ifdef PERL_CR_FILTER |
3280af22 | 2828 | if (!PL_rsfp_filters) { |
c39cd008 | 2829 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
2830 | } |
2831 | #endif | |
3280af22 | 2832 | if (PL_rsfp_filters) { |
55497cff | 2833 | if (!append) |
2834 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
2835 | if (FILTER_READ(0, sv, 0) > 0) |
2836 | return ( SvPVX(sv) ) ; | |
2837 | else | |
bd61b366 | 2838 | return NULL ; |
16d20bd9 | 2839 | } |
9d116dd7 | 2840 | else |
fd049845 | 2841 | return (sv_gets(sv, fp, append)); |
a0d0e21e LW |
2842 | } |
2843 | ||
01ec43d0 | 2844 | STATIC HV * |
7fc63493 | 2845 | S_find_in_my_stash(pTHX_ const char *pkgname, I32 len) |
def3634b | 2846 | { |
97aff369 | 2847 | dVAR; |
def3634b GS |
2848 | GV *gv; |
2849 | ||
01ec43d0 | 2850 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
2851 | return PL_curstash; |
2852 | ||
2853 | if (len > 2 && | |
2854 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
90e5519e | 2855 | (gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVHV))) |
01ec43d0 GS |
2856 | { |
2857 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
2858 | } |
2859 | ||
2860 | /* use constant CLASS => 'MyClass' */ | |
c35e046a AL |
2861 | gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVCV); |
2862 | if (gv && GvCV(gv)) { | |
2863 | SV * const sv = cv_const_sv(GvCV(gv)); | |
2864 | if (sv) | |
83003860 | 2865 | pkgname = SvPV_nolen_const(sv); |
def3634b GS |
2866 | } |
2867 | ||
2868 | return gv_stashpv(pkgname, FALSE); | |
2869 | } | |
a0d0e21e | 2870 | |
e3f73d4e RGS |
2871 | /* |
2872 | * S_readpipe_override | |
2873 | * Check whether readpipe() is overriden, and generates the appropriate | |
2874 | * optree, provided sublex_start() is called afterwards. | |
2875 | */ | |
2876 | STATIC void | |
1d51329b | 2877 | S_readpipe_override(pTHX) |
e3f73d4e RGS |
2878 | { |
2879 | GV **gvp; | |
2880 | GV *gv_readpipe = gv_fetchpvs("readpipe", GV_NOTQUAL, SVt_PVCV); | |
2881 | yylval.ival = OP_BACKTICK; | |
2882 | if ((gv_readpipe | |
2883 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe)) | |
2884 | || | |
2885 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readpipe", FALSE)) | |
2886 | && (gv_readpipe = *gvp) != (GV*)&PL_sv_undef | |
2887 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe))) | |
2888 | { | |
2889 | PL_lex_op = (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2890 | append_elem(OP_LIST, | |
2891 | newSVOP(OP_CONST, 0, &PL_sv_undef), /* value will be read later */ | |
2892 | newCVREF(0, newGVOP(OP_GV, 0, gv_readpipe)))); | |
2893 | } | |
2894 | else { | |
2895 | set_csh(); | |
2896 | } | |
2897 | } | |
2898 | ||
5db06880 NC |
2899 | #ifdef PERL_MAD |
2900 | /* | |
2901 | * Perl_madlex | |
2902 | * The intent of this yylex wrapper is to minimize the changes to the | |
2903 | * tokener when we aren't interested in collecting madprops. It remains | |
2904 | * to be seen how successful this strategy will be... | |
2905 | */ | |
2906 | ||
2907 | int | |
2908 | Perl_madlex(pTHX) | |
2909 | { | |
2910 | int optype; | |
2911 | char *s = PL_bufptr; | |
2912 | ||
cd81e915 NC |
2913 | /* make sure PL_thiswhite is initialized */ |
2914 | PL_thiswhite = 0; | |
2915 | PL_thismad = 0; | |
5db06880 | 2916 | |
cd81e915 | 2917 | /* just do what yylex would do on pending identifier; leave PL_thiswhite alone */ |
5db06880 NC |
2918 | if (PL_pending_ident) |
2919 | return S_pending_ident(aTHX); | |
2920 | ||
2921 | /* previous token ate up our whitespace? */ | |
cd81e915 NC |
2922 | if (!PL_lasttoke && PL_nextwhite) { |
2923 | PL_thiswhite = PL_nextwhite; | |
2924 | PL_nextwhite = 0; | |
5db06880 NC |
2925 | } |
2926 | ||
2927 | /* isolate the token, and figure out where it is without whitespace */ | |
cd81e915 NC |
2928 | PL_realtokenstart = -1; |
2929 | PL_thistoken = 0; | |
5db06880 NC |
2930 | optype = yylex(); |
2931 | s = PL_bufptr; | |
cd81e915 | 2932 | assert(PL_curforce < 0); |
5db06880 | 2933 | |
cd81e915 NC |
2934 | if (!PL_thismad || PL_thismad->mad_key == '^') { /* not forced already? */ |
2935 | if (!PL_thistoken) { | |
2936 | if (PL_realtokenstart < 0 || !CopLINE(PL_curcop)) | |
6b29d1f5 | 2937 | PL_thistoken = newSVpvs(""); |
5db06880 | 2938 | else { |
c35e046a | 2939 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 | 2940 | PL_thistoken = newSVpvn(tstart, s - tstart); |
5db06880 NC |
2941 | } |
2942 | } | |
cd81e915 NC |
2943 | if (PL_thismad) /* install head */ |
2944 | CURMAD('X', PL_thistoken); | |
5db06880 NC |
2945 | } |
2946 | ||
2947 | /* last whitespace of a sublex? */ | |
cd81e915 NC |
2948 | if (optype == ')' && PL_endwhite) { |
2949 | CURMAD('X', PL_endwhite); | |
5db06880 NC |
2950 | } |
2951 | ||
cd81e915 | 2952 | if (!PL_thismad) { |
5db06880 NC |
2953 | |
2954 | /* if no whitespace and we're at EOF, bail. Otherwise fake EOF below. */ | |
cd81e915 NC |
2955 | if (!PL_thiswhite && !PL_endwhite && !optype) { |
2956 | sv_free(PL_thistoken); | |
2957 | PL_thistoken = 0; | |
5db06880 NC |
2958 | return 0; |
2959 | } | |
2960 | ||
2961 | /* put off final whitespace till peg */ | |
2962 | if (optype == ';' && !PL_rsfp) { | |
cd81e915 NC |
2963 | PL_nextwhite = PL_thiswhite; |
2964 | PL_thiswhite = 0; | |
5db06880 | 2965 | } |
cd81e915 NC |
2966 | else if (PL_thisopen) { |
2967 | CURMAD('q', PL_thisopen); | |
2968 | if (PL_thistoken) | |
2969 | sv_free(PL_thistoken); | |
2970 | PL_thistoken = 0; | |
5db06880 NC |
2971 | } |
2972 | else { | |
2973 | /* Store actual token text as madprop X */ | |
cd81e915 | 2974 | CURMAD('X', PL_thistoken); |
5db06880 NC |
2975 | } |
2976 | ||
cd81e915 | 2977 | if (PL_thiswhite) { |
5db06880 | 2978 | /* add preceding whitespace as madprop _ */ |
cd81e915 | 2979 | CURMAD('_', PL_thiswhite); |
5db06880 NC |
2980 | } |
2981 | ||
cd81e915 | 2982 | if (PL_thisstuff) { |
5db06880 | 2983 | /* add quoted material as madprop = */ |
cd81e915 | 2984 | CURMAD('=', PL_thisstuff); |
5db06880 NC |
2985 | } |
2986 | ||
cd81e915 | 2987 | if (PL_thisclose) { |
5db06880 | 2988 | /* add terminating quote as madprop Q */ |
cd81e915 | 2989 | CURMAD('Q', PL_thisclose); |
5db06880 NC |
2990 | } |
2991 | } | |
2992 | ||
2993 | /* special processing based on optype */ | |
2994 | ||
2995 | switch (optype) { | |
2996 | ||
2997 | /* opval doesn't need a TOKEN since it can already store mp */ | |
2998 | case WORD: | |
2999 | case METHOD: | |
3000 | case FUNCMETH: | |
3001 | case THING: | |
3002 | case PMFUNC: | |
3003 | case PRIVATEREF: | |
3004 | case FUNC0SUB: | |
3005 | case UNIOPSUB: | |
3006 | case LSTOPSUB: | |
3007 | if (yylval.opval) | |
cd81e915 NC |
3008 | append_madprops(PL_thismad, yylval.opval, 0); |
3009 | PL_thismad = 0; | |
5db06880 NC |
3010 | return optype; |
3011 | ||
3012 | /* fake EOF */ | |
3013 | case 0: | |
3014 | optype = PEG; | |
cd81e915 NC |
3015 | if (PL_endwhite) { |
3016 | addmad(newMADsv('p', PL_endwhite), &PL_thismad, 0); | |
3017 | PL_endwhite = 0; | |
5db06880 NC |
3018 | } |
3019 | break; | |
3020 | ||
3021 | case ']': | |
3022 | case '}': | |
cd81e915 | 3023 | if (PL_faketokens) |
5db06880 NC |
3024 | break; |
3025 | /* remember any fake bracket that lexer is about to discard */ | |
3026 | if (PL_lex_brackets == 1 && | |
3027 | ((expectation)PL_lex_brackstack[0] & XFAKEBRACK)) | |
3028 | { | |
3029 | s = PL_bufptr; | |
3030 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
3031 | s++; | |
3032 | if (*s == '}') { | |
cd81e915 NC |
3033 | PL_thiswhite = newSVpvn(PL_bufptr, ++s - PL_bufptr); |
3034 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3035 | PL_thiswhite = 0; | |
5db06880 NC |
3036 | PL_bufptr = s - 1; |
3037 | break; /* don't bother looking for trailing comment */ | |
3038 | } | |
3039 | else | |
3040 | s = PL_bufptr; | |
3041 | } | |
3042 | if (optype == ']') | |
3043 | break; | |
3044 | /* FALLTHROUGH */ | |
3045 | ||
3046 | /* attach a trailing comment to its statement instead of next token */ | |
3047 | case ';': | |
cd81e915 | 3048 | if (PL_faketokens) |
5db06880 NC |
3049 | break; |
3050 | if (PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == optype) { | |
3051 | s = PL_bufptr; | |
3052 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
3053 | s++; | |
3054 | if (*s == '\n' || *s == '#') { | |
3055 | while (s < PL_bufend && *s != '\n') | |
3056 | s++; | |
3057 | if (s < PL_bufend) | |
3058 | s++; | |
cd81e915 NC |
3059 | PL_thiswhite = newSVpvn(PL_bufptr, s - PL_bufptr); |
3060 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3061 | PL_thiswhite = 0; | |
5db06880 NC |
3062 | PL_bufptr = s; |
3063 | } | |
3064 | } | |
3065 | break; | |
3066 | ||
3067 | /* pval */ | |
3068 | case LABEL: | |
3069 | break; | |
3070 | ||
3071 | /* ival */ | |
3072 | default: | |
3073 | break; | |
3074 | ||
3075 | } | |
3076 | ||
3077 | /* Create new token struct. Note: opvals return early above. */ | |
cd81e915 NC |
3078 | yylval.tkval = newTOKEN(optype, yylval, PL_thismad); |
3079 | PL_thismad = 0; | |
5db06880 NC |
3080 | return optype; |
3081 | } | |
3082 | #endif | |
3083 | ||
468aa647 | 3084 | STATIC char * |
cc6ed77d | 3085 | S_tokenize_use(pTHX_ int is_use, char *s) { |
97aff369 | 3086 | dVAR; |
468aa647 RGS |
3087 | if (PL_expect != XSTATE) |
3088 | yyerror(Perl_form(aTHX_ "\"%s\" not allowed in expression", | |
3089 | is_use ? "use" : "no")); | |
29595ff2 | 3090 | s = SKIPSPACE1(s); |
468aa647 RGS |
3091 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { |
3092 | s = force_version(s, TRUE); | |
29595ff2 | 3093 | if (*s == ';' || (s = SKIPSPACE1(s), *s == ';')) { |
cd81e915 | 3094 | start_force(PL_curforce); |
9ded7720 | 3095 | NEXTVAL_NEXTTOKE.opval = NULL; |
468aa647 RGS |
3096 | force_next(WORD); |
3097 | } | |
3098 | else if (*s == 'v') { | |
3099 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3100 | s = force_version(s, FALSE); | |
3101 | } | |
3102 | } | |
3103 | else { | |
3104 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3105 | s = force_version(s, FALSE); | |
3106 | } | |
3107 | yylval.ival = is_use; | |
3108 | return s; | |
3109 | } | |
748a9306 | 3110 | #ifdef DEBUGGING |
27da23d5 | 3111 | static const char* const exp_name[] = |
09bef843 | 3112 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
27308ded | 3113 | "ATTRTERM", "TERMBLOCK", "TERMORDORDOR" |
09bef843 | 3114 | }; |
748a9306 | 3115 | #endif |
463ee0b2 | 3116 | |
02aa26ce NT |
3117 | /* |
3118 | yylex | |
3119 | ||
3120 | Works out what to call the token just pulled out of the input | |
3121 | stream. The yacc parser takes care of taking the ops we return and | |
3122 | stitching them into a tree. | |
3123 | ||
3124 | Returns: | |
3125 | PRIVATEREF | |
3126 | ||
3127 | Structure: | |
3128 | if read an identifier | |
3129 | if we're in a my declaration | |
3130 | croak if they tried to say my($foo::bar) | |
3131 | build the ops for a my() declaration | |
3132 | if it's an access to a my() variable | |
3133 | are we in a sort block? | |
3134 | croak if my($a); $a <=> $b | |
3135 | build ops for access to a my() variable | |
3136 | if in a dq string, and they've said @foo and we can't find @foo | |
3137 | croak | |
3138 | build ops for a bareword | |
3139 | if we already built the token before, use it. | |
3140 | */ | |
3141 | ||
20141f0e | 3142 | |
dba4d153 JH |
3143 | #ifdef __SC__ |
3144 | #pragma segment Perl_yylex | |
3145 | #endif | |
dba4d153 | 3146 | int |
dba4d153 | 3147 | Perl_yylex(pTHX) |
20141f0e | 3148 | { |
97aff369 | 3149 | dVAR; |
3afc138a | 3150 | register char *s = PL_bufptr; |
378cc40b | 3151 | register char *d; |
463ee0b2 | 3152 | STRLEN len; |
aa7440fb | 3153 | bool bof = FALSE; |
a687059c | 3154 | |
10edeb5d JH |
3155 | /* orig_keyword, gvp, and gv are initialized here because |
3156 | * jump to the label just_a_word_zero can bypass their | |
3157 | * initialization later. */ | |
3158 | I32 orig_keyword = 0; | |
3159 | GV *gv = NULL; | |
3160 | GV **gvp = NULL; | |
3161 | ||
bbf60fe6 | 3162 | DEBUG_T( { |
396482e1 | 3163 | SV* tmp = newSVpvs(""); |
b6007c36 DM |
3164 | PerlIO_printf(Perl_debug_log, "### %"IVdf":LEX_%s/X%s %s\n", |
3165 | (IV)CopLINE(PL_curcop), | |
3166 | lex_state_names[PL_lex_state], | |
3167 | exp_name[PL_expect], | |
3168 | pv_display(tmp, s, strlen(s), 0, 60)); | |
3169 | SvREFCNT_dec(tmp); | |
bbf60fe6 | 3170 | } ); |
02aa26ce | 3171 | /* check if there's an identifier for us to look at */ |
ba979b31 | 3172 | if (PL_pending_ident) |
bbf60fe6 | 3173 | return REPORT(S_pending_ident(aTHX)); |
bbce6d69 | 3174 | |
02aa26ce NT |
3175 | /* no identifier pending identification */ |
3176 | ||
3280af22 | 3177 | switch (PL_lex_state) { |
79072805 LW |
3178 | #ifdef COMMENTARY |
3179 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
3180 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
3181 | break; | |
3182 | #endif | |
3183 | ||
09bef843 | 3184 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 3185 | case LEX_KNOWNEXT: |
5db06880 NC |
3186 | #ifdef PERL_MAD |
3187 | PL_lasttoke--; | |
3188 | yylval = PL_nexttoke[PL_lasttoke].next_val; | |
3189 | if (PL_madskills) { | |
cd81e915 | 3190 | PL_thismad = PL_nexttoke[PL_lasttoke].next_mad; |
5db06880 | 3191 | PL_nexttoke[PL_lasttoke].next_mad = 0; |
cd81e915 NC |
3192 | if (PL_thismad && PL_thismad->mad_key == '_') { |
3193 | PL_thiswhite = (SV*)PL_thismad->mad_val; | |
3194 | PL_thismad->mad_val = 0; | |
3195 | mad_free(PL_thismad); | |
3196 | PL_thismad = 0; | |
5db06880 NC |
3197 | } |
3198 | } | |
3199 | if (!PL_lasttoke) { | |
3200 | PL_lex_state = PL_lex_defer; | |
3201 | PL_expect = PL_lex_expect; | |
3202 | PL_lex_defer = LEX_NORMAL; | |
3203 | if (!PL_nexttoke[PL_lasttoke].next_type) | |
3204 | return yylex(); | |
3205 | } | |
3206 | #else | |
3280af22 | 3207 | PL_nexttoke--; |
5db06880 | 3208 | yylval = PL_nextval[PL_nexttoke]; |
3280af22 NIS |
3209 | if (!PL_nexttoke) { |
3210 | PL_lex_state = PL_lex_defer; | |
3211 | PL_expect = PL_lex_expect; | |
3212 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 3213 | } |
5db06880 NC |
3214 | #endif |
3215 | #ifdef PERL_MAD | |
3216 | /* FIXME - can these be merged? */ | |
3217 | return(PL_nexttoke[PL_lasttoke].next_type); | |
3218 | #else | |
bbf60fe6 | 3219 | return REPORT(PL_nexttype[PL_nexttoke]); |
5db06880 | 3220 | #endif |
79072805 | 3221 | |
02aa26ce | 3222 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 3223 | when we get here, PL_bufptr is at the \ |
02aa26ce | 3224 | */ |
79072805 LW |
3225 | case LEX_INTERPCASEMOD: |
3226 | #ifdef DEBUGGING | |
3280af22 | 3227 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 3228 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 3229 | #endif |
02aa26ce | 3230 | /* handle \E or end of string */ |
3280af22 | 3231 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
02aa26ce | 3232 | /* if at a \E */ |
3280af22 | 3233 | if (PL_lex_casemods) { |
f54cb97a | 3234 | const char oldmod = PL_lex_casestack[--PL_lex_casemods]; |
3280af22 | 3235 | PL_lex_casestack[PL_lex_casemods] = '\0'; |
02aa26ce | 3236 | |
3792a11b NC |
3237 | if (PL_bufptr != PL_bufend |
3238 | && (oldmod == 'L' || oldmod == 'U' || oldmod == 'Q')) { | |
3280af22 NIS |
3239 | PL_bufptr += 2; |
3240 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3241 | #ifdef PERL_MAD |
3242 | if (PL_madskills) | |
6b29d1f5 | 3243 | PL_thistoken = newSVpvs("\\E"); |
5db06880 | 3244 | #endif |
a0d0e21e | 3245 | } |
bbf60fe6 | 3246 | return REPORT(')'); |
79072805 | 3247 | } |
5db06880 NC |
3248 | #ifdef PERL_MAD |
3249 | while (PL_bufptr != PL_bufend && | |
3250 | PL_bufptr[0] == '\\' && PL_bufptr[1] == 'E') { | |
cd81e915 | 3251 | if (!PL_thiswhite) |
6b29d1f5 | 3252 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3253 | sv_catpvn(PL_thiswhite, PL_bufptr, 2); |
5db06880 NC |
3254 | PL_bufptr += 2; |
3255 | } | |
3256 | #else | |
3280af22 NIS |
3257 | if (PL_bufptr != PL_bufend) |
3258 | PL_bufptr += 2; | |
5db06880 | 3259 | #endif |
3280af22 | 3260 | PL_lex_state = LEX_INTERPCONCAT; |
cea2e8a9 | 3261 | return yylex(); |
79072805 LW |
3262 | } |
3263 | else { | |
607df283 | 3264 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3265 | "### Saw case modifier\n"); }); |
3280af22 | 3266 | s = PL_bufptr + 1; |
6e909404 | 3267 | if (s[1] == '\\' && s[2] == 'E') { |
5db06880 | 3268 | #ifdef PERL_MAD |
cd81e915 | 3269 | if (!PL_thiswhite) |
6b29d1f5 | 3270 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3271 | sv_catpvn(PL_thiswhite, PL_bufptr, 4); |
5db06880 | 3272 | #endif |
89122651 | 3273 | PL_bufptr = s + 3; |
6e909404 JH |
3274 | PL_lex_state = LEX_INTERPCONCAT; |
3275 | return yylex(); | |
a0d0e21e | 3276 | } |
6e909404 | 3277 | else { |
90771dc0 | 3278 | I32 tmp; |
5db06880 NC |
3279 | if (!PL_madskills) /* when just compiling don't need correct */ |
3280 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
3281 | tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */ | |
3792a11b | 3282 | if ((*s == 'L' || *s == 'U') && |
6e909404 JH |
3283 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) { |
3284 | PL_lex_casestack[--PL_lex_casemods] = '\0'; | |
bbf60fe6 | 3285 | return REPORT(')'); |
6e909404 JH |
3286 | } |
3287 | if (PL_lex_casemods > 10) | |
3288 | Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
3289 | PL_lex_casestack[PL_lex_casemods++] = *s; | |
3290 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
3291 | PL_lex_state = LEX_INTERPCONCAT; | |
cd81e915 | 3292 | start_force(PL_curforce); |
9ded7720 | 3293 | NEXTVAL_NEXTTOKE.ival = 0; |
6e909404 | 3294 | force_next('('); |
cd81e915 | 3295 | start_force(PL_curforce); |
6e909404 | 3296 | if (*s == 'l') |
9ded7720 | 3297 | NEXTVAL_NEXTTOKE.ival = OP_LCFIRST; |
6e909404 | 3298 | else if (*s == 'u') |
9ded7720 | 3299 | NEXTVAL_NEXTTOKE.ival = OP_UCFIRST; |
6e909404 | 3300 | else if (*s == 'L') |
9ded7720 | 3301 | NEXTVAL_NEXTTOKE.ival = OP_LC; |
6e909404 | 3302 | else if (*s == 'U') |
9ded7720 | 3303 | NEXTVAL_NEXTTOKE.ival = OP_UC; |
6e909404 | 3304 | else if (*s == 'Q') |
9ded7720 | 3305 | NEXTVAL_NEXTTOKE.ival = OP_QUOTEMETA; |
6e909404 JH |
3306 | else |
3307 | Perl_croak(aTHX_ "panic: yylex"); | |
5db06880 | 3308 | if (PL_madskills) { |
6b29d1f5 | 3309 | SV* const tmpsv = newSVpvs(""); |
5db06880 NC |
3310 | Perl_sv_catpvf(aTHX_ tmpsv, "\\%c", *s); |
3311 | curmad('_', tmpsv); | |
3312 | } | |
6e909404 | 3313 | PL_bufptr = s + 1; |
a0d0e21e | 3314 | } |
79072805 | 3315 | force_next(FUNC); |
3280af22 NIS |
3316 | if (PL_lex_starts) { |
3317 | s = PL_bufptr; | |
3318 | PL_lex_starts = 0; | |
5db06880 NC |
3319 | #ifdef PERL_MAD |
3320 | if (PL_madskills) { | |
cd81e915 NC |
3321 | if (PL_thistoken) |
3322 | sv_free(PL_thistoken); | |
6b29d1f5 | 3323 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3324 | } |
3325 | #endif | |
131b3ad0 DM |
3326 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3327 | if (PL_lex_casemods == 1 && PL_lex_inpat) | |
3328 | OPERATOR(','); | |
3329 | else | |
3330 | Aop(OP_CONCAT); | |
79072805 LW |
3331 | } |
3332 | else | |
cea2e8a9 | 3333 | return yylex(); |
79072805 LW |
3334 | } |
3335 | ||
55497cff | 3336 | case LEX_INTERPPUSH: |
bbf60fe6 | 3337 | return REPORT(sublex_push()); |
55497cff | 3338 | |
79072805 | 3339 | case LEX_INTERPSTART: |
3280af22 | 3340 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3341 | return REPORT(sublex_done()); |
607df283 | 3342 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3343 | "### Interpolated variable\n"); }); |
3280af22 NIS |
3344 | PL_expect = XTERM; |
3345 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
3346 | PL_lex_state = LEX_INTERPNORMAL; | |
3347 | if (PL_lex_dojoin) { | |
cd81e915 | 3348 | start_force(PL_curforce); |
9ded7720 | 3349 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3350 | force_next(','); |
cd81e915 | 3351 | start_force(PL_curforce); |
a0d0e21e | 3352 | force_ident("\"", '$'); |
cd81e915 | 3353 | start_force(PL_curforce); |
9ded7720 | 3354 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3355 | force_next('$'); |
cd81e915 | 3356 | start_force(PL_curforce); |
9ded7720 | 3357 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3358 | force_next('('); |
cd81e915 | 3359 | start_force(PL_curforce); |
9ded7720 | 3360 | NEXTVAL_NEXTTOKE.ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
3361 | force_next(FUNC); |
3362 | } | |
3280af22 NIS |
3363 | if (PL_lex_starts++) { |
3364 | s = PL_bufptr; | |
5db06880 NC |
3365 | #ifdef PERL_MAD |
3366 | if (PL_madskills) { | |
cd81e915 NC |
3367 | if (PL_thistoken) |
3368 | sv_free(PL_thistoken); | |
6b29d1f5 | 3369 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3370 | } |
3371 | #endif | |
131b3ad0 DM |
3372 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3373 | if (!PL_lex_casemods && PL_lex_inpat) | |
3374 | OPERATOR(','); | |
3375 | else | |
3376 | Aop(OP_CONCAT); | |
79072805 | 3377 | } |
cea2e8a9 | 3378 | return yylex(); |
79072805 LW |
3379 | |
3380 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
3381 | if (intuit_more(PL_bufptr)) { |
3382 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
3383 | break; |
3384 | } | |
3385 | /* FALL THROUGH */ | |
3386 | ||
3387 | case LEX_INTERPEND: | |
3280af22 NIS |
3388 | if (PL_lex_dojoin) { |
3389 | PL_lex_dojoin = FALSE; | |
3390 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3391 | #ifdef PERL_MAD |
3392 | if (PL_madskills) { | |
cd81e915 NC |
3393 | if (PL_thistoken) |
3394 | sv_free(PL_thistoken); | |
6b29d1f5 | 3395 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3396 | } |
3397 | #endif | |
bbf60fe6 | 3398 | return REPORT(')'); |
79072805 | 3399 | } |
43a16006 | 3400 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 3401 | && SvEVALED(PL_lex_repl)) |
43a16006 | 3402 | { |
e9fa98b2 | 3403 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 3404 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
a0714e2c | 3405 | PL_lex_repl = NULL; |
e9fa98b2 | 3406 | } |
79072805 LW |
3407 | /* FALLTHROUGH */ |
3408 | case LEX_INTERPCONCAT: | |
3409 | #ifdef DEBUGGING | |
3280af22 | 3410 | if (PL_lex_brackets) |
cea2e8a9 | 3411 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 3412 | #endif |
3280af22 | 3413 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3414 | return REPORT(sublex_done()); |
79072805 | 3415 | |
3280af22 NIS |
3416 | if (SvIVX(PL_linestr) == '\'') { |
3417 | SV *sv = newSVsv(PL_linestr); | |
3418 | if (!PL_lex_inpat) | |
76e3520e | 3419 | sv = tokeq(sv); |
3280af22 | 3420 | else if ( PL_hints & HINT_NEW_RE ) |
b3ac6de7 | 3421 | sv = new_constant(NULL, 0, "qr", sv, sv, "q"); |
79072805 | 3422 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 3423 | s = PL_bufend; |
79072805 LW |
3424 | } |
3425 | else { | |
3280af22 | 3426 | s = scan_const(PL_bufptr); |
79072805 | 3427 | if (*s == '\\') |
3280af22 | 3428 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 3429 | else |
3280af22 | 3430 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
3431 | } |
3432 | ||
3280af22 | 3433 | if (s != PL_bufptr) { |
cd81e915 | 3434 | start_force(PL_curforce); |
5db06880 NC |
3435 | if (PL_madskills) { |
3436 | curmad('X', newSVpvn(PL_bufptr,s-PL_bufptr)); | |
3437 | } | |
9ded7720 | 3438 | NEXTVAL_NEXTTOKE = yylval; |
3280af22 | 3439 | PL_expect = XTERM; |
79072805 | 3440 | force_next(THING); |
131b3ad0 | 3441 | if (PL_lex_starts++) { |
5db06880 NC |
3442 | #ifdef PERL_MAD |
3443 | if (PL_madskills) { | |
cd81e915 NC |
3444 | if (PL_thistoken) |
3445 | sv_free(PL_thistoken); | |
6b29d1f5 | 3446 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3447 | } |
3448 | #endif | |
131b3ad0 DM |
3449 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3450 | if (!PL_lex_casemods && PL_lex_inpat) | |
3451 | OPERATOR(','); | |
3452 | else | |
3453 | Aop(OP_CONCAT); | |
3454 | } | |
79072805 | 3455 | else { |
3280af22 | 3456 | PL_bufptr = s; |
cea2e8a9 | 3457 | return yylex(); |
79072805 LW |
3458 | } |
3459 | } | |
3460 | ||
cea2e8a9 | 3461 | return yylex(); |
a0d0e21e | 3462 | case LEX_FORMLINE: |
3280af22 NIS |
3463 | PL_lex_state = LEX_NORMAL; |
3464 | s = scan_formline(PL_bufptr); | |
3465 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
3466 | goto rightbracket; |
3467 | OPERATOR(';'); | |
79072805 LW |
3468 | } |
3469 | ||
3280af22 NIS |
3470 | s = PL_bufptr; |
3471 | PL_oldoldbufptr = PL_oldbufptr; | |
3472 | PL_oldbufptr = s; | |
463ee0b2 LW |
3473 | |
3474 | retry: | |
5db06880 | 3475 | #ifdef PERL_MAD |
cd81e915 NC |
3476 | if (PL_thistoken) { |
3477 | sv_free(PL_thistoken); | |
3478 | PL_thistoken = 0; | |
5db06880 | 3479 | } |
cd81e915 | 3480 | PL_realtokenstart = s - SvPVX(PL_linestr); /* assume but undo on ws */ |
5db06880 | 3481 | #endif |
378cc40b LW |
3482 | switch (*s) { |
3483 | default: | |
7e2040f0 | 3484 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 3485 | goto keylookup; |
cea2e8a9 | 3486 | Perl_croak(aTHX_ "Unrecognized character \\x%02X", *s & 255); |
e929a76b LW |
3487 | case 4: |
3488 | case 26: | |
3489 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 3490 | case 0: |
5db06880 NC |
3491 | #ifdef PERL_MAD |
3492 | if (PL_madskills) | |
cd81e915 | 3493 | PL_faketokens = 0; |
5db06880 | 3494 | #endif |
3280af22 NIS |
3495 | if (!PL_rsfp) { |
3496 | PL_last_uni = 0; | |
3497 | PL_last_lop = 0; | |
c5ee2135 | 3498 | if (PL_lex_brackets) { |
10edeb5d JH |
3499 | yyerror((const char *) |
3500 | (PL_lex_formbrack | |
3501 | ? "Format not terminated" | |
3502 | : "Missing right curly or square bracket")); | |
c5ee2135 | 3503 | } |
4e553d73 | 3504 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 3505 | "### Tokener got EOF\n"); |
5f80b19c | 3506 | } ); |
79072805 | 3507 | TOKEN(0); |
463ee0b2 | 3508 | } |
3280af22 | 3509 | if (s++ < PL_bufend) |
a687059c | 3510 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
3511 | PL_last_uni = 0; |
3512 | PL_last_lop = 0; | |
3513 | if (!PL_in_eval && !PL_preambled) { | |
3514 | PL_preambled = TRUE; | |
5db06880 NC |
3515 | #ifdef PERL_MAD |
3516 | if (PL_madskills) | |
cd81e915 | 3517 | PL_faketokens = 1; |
5db06880 | 3518 | #endif |
3280af22 NIS |
3519 | sv_setpv(PL_linestr,incl_perldb()); |
3520 | if (SvCUR(PL_linestr)) | |
396482e1 | 3521 | sv_catpvs(PL_linestr,";"); |
3280af22 NIS |
3522 | if (PL_preambleav){ |
3523 | while(AvFILLp(PL_preambleav) >= 0) { | |
3524 | SV *tmpsv = av_shift(PL_preambleav); | |
3525 | sv_catsv(PL_linestr, tmpsv); | |
396482e1 | 3526 | sv_catpvs(PL_linestr, ";"); |
91b7def8 | 3527 | sv_free(tmpsv); |
3528 | } | |
3280af22 NIS |
3529 | sv_free((SV*)PL_preambleav); |
3530 | PL_preambleav = NULL; | |
91b7def8 | 3531 | } |
3280af22 | 3532 | if (PL_minus_n || PL_minus_p) { |
396482e1 | 3533 | sv_catpvs(PL_linestr, "LINE: while (<>) {"); |
3280af22 | 3534 | if (PL_minus_l) |
396482e1 | 3535 | sv_catpvs(PL_linestr,"chomp;"); |
3280af22 | 3536 | if (PL_minus_a) { |
3280af22 | 3537 | if (PL_minus_F) { |
3792a11b NC |
3538 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
3539 | || *PL_splitstr == '"') | |
3280af22 | 3540 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 3541 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 3542 | else { |
c8ef6a4b NC |
3543 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
3544 | bytes can be used as quoting characters. :-) */ | |
dd374669 | 3545 | const char *splits = PL_splitstr; |
91d456ae | 3546 | sv_catpvs(PL_linestr, "our @F=split(q\0"); |
48c4c863 NC |
3547 | do { |
3548 | /* Need to \ \s */ | |
dd374669 AL |
3549 | if (*splits == '\\') |
3550 | sv_catpvn(PL_linestr, splits, 1); | |
3551 | sv_catpvn(PL_linestr, splits, 1); | |
3552 | } while (*splits++); | |
48c4c863 NC |
3553 | /* This loop will embed the trailing NUL of |
3554 | PL_linestr as the last thing it does before | |
3555 | terminating. */ | |
396482e1 | 3556 | sv_catpvs(PL_linestr, ");"); |
54310121 | 3557 | } |
2304df62 AD |
3558 | } |
3559 | else | |
396482e1 | 3560 | sv_catpvs(PL_linestr,"our @F=split(' ');"); |
2304df62 | 3561 | } |
79072805 | 3562 | } |
bc9b29db | 3563 | if (PL_minus_E) |
396482e1 GA |
3564 | sv_catpvs(PL_linestr,"use feature ':5.10';"); |
3565 | sv_catpvs(PL_linestr, "\n"); | |
3280af22 NIS |
3566 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3567 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3568 | PL_last_lop = PL_last_uni = NULL; |
80a702cd RGS |
3569 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
3570 | update_debugger_info_sv(PL_linestr); | |
79072805 | 3571 | goto retry; |
a687059c | 3572 | } |
e929a76b | 3573 | do { |
aa7440fb | 3574 | bof = PL_rsfp ? TRUE : FALSE; |
bd61b366 | 3575 | if ((s = filter_gets(PL_linestr, PL_rsfp, 0)) == NULL) { |
7e28d3af | 3576 | fake_eof: |
5db06880 | 3577 | #ifdef PERL_MAD |
cd81e915 | 3578 | PL_realtokenstart = -1; |
5db06880 | 3579 | #endif |
7e28d3af JH |
3580 | if (PL_rsfp) { |
3581 | if (PL_preprocess && !PL_in_eval) | |
3582 | (void)PerlProc_pclose(PL_rsfp); | |
3583 | else if ((PerlIO *)PL_rsfp == PerlIO_stdin()) | |
3584 | PerlIO_clearerr(PL_rsfp); | |
3585 | else | |
3586 | (void)PerlIO_close(PL_rsfp); | |
4608196e | 3587 | PL_rsfp = NULL; |
7e28d3af JH |
3588 | PL_doextract = FALSE; |
3589 | } | |
3590 | if (!PL_in_eval && (PL_minus_n || PL_minus_p)) { | |
5db06880 NC |
3591 | #ifdef PERL_MAD |
3592 | if (PL_madskills) | |
cd81e915 | 3593 | PL_faketokens = 1; |
5db06880 | 3594 | #endif |
10edeb5d JH |
3595 | sv_setpv(PL_linestr, |
3596 | (const char *) | |
3597 | (PL_minus_p | |
3598 | ? ";}continue{print;}" : ";}")); | |
7e28d3af JH |
3599 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3600 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3601 | PL_last_lop = PL_last_uni = NULL; |
7e28d3af JH |
3602 | PL_minus_n = PL_minus_p = 0; |
3603 | goto retry; | |
3604 | } | |
3605 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
bd61b366 | 3606 | PL_last_lop = PL_last_uni = NULL; |
c69006e4 | 3607 | sv_setpvn(PL_linestr,"",0); |
7e28d3af JH |
3608 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ |
3609 | } | |
7aa207d6 JH |
3610 | /* If it looks like the start of a BOM or raw UTF-16, |
3611 | * check if it in fact is. */ | |
3612 | else if (bof && | |
3613 | (*s == 0 || | |
3614 | *(U8*)s == 0xEF || | |
3615 | *(U8*)s >= 0xFE || | |
3616 | s[1] == 0)) { | |
226017aa | 3617 | #ifdef PERLIO_IS_STDIO |
e3f494f1 JH |
3618 | # ifdef __GNU_LIBRARY__ |
3619 | # if __GNU_LIBRARY__ == 1 /* Linux glibc5 */ | |
226017aa DD |
3620 | # define FTELL_FOR_PIPE_IS_BROKEN |
3621 | # endif | |
e3f494f1 JH |
3622 | # else |
3623 | # ifdef __GLIBC__ | |
3624 | # if __GLIBC__ == 1 /* maybe some glibc5 release had it like this? */ | |
3625 | # define FTELL_FOR_PIPE_IS_BROKEN | |
3626 | # endif | |
3627 | # endif | |
226017aa DD |
3628 | # endif |
3629 | #endif | |
3630 | #ifdef FTELL_FOR_PIPE_IS_BROKEN | |
3631 | /* This loses the possibility to detect the bof | |
3632 | * situation on perl -P when the libc5 is being used. | |
3633 | * Workaround? Maybe attach some extra state to PL_rsfp? | |
3634 | */ | |
3635 | if (!PL_preprocess) | |
7e28d3af | 3636 | bof = PerlIO_tell(PL_rsfp) == SvCUR(PL_linestr); |
226017aa | 3637 | #else |
eb160463 | 3638 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
226017aa | 3639 | #endif |
7e28d3af | 3640 | if (bof) { |
3280af22 | 3641 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 3642 | s = swallow_bom((U8*)s); |
e929a76b | 3643 | } |
378cc40b | 3644 | } |
3280af22 | 3645 | if (PL_doextract) { |
a0d0e21e | 3646 | /* Incest with pod. */ |
5db06880 NC |
3647 | #ifdef PERL_MAD |
3648 | if (PL_madskills) | |
cd81e915 | 3649 | sv_catsv(PL_thiswhite, PL_linestr); |
5db06880 | 3650 | #endif |
a0d0e21e | 3651 | if (*s == '=' && strnEQ(s, "=cut", 4)) { |
c69006e4 | 3652 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3653 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3654 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3655 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3656 | PL_doextract = FALSE; |
a0d0e21e | 3657 | } |
4e553d73 | 3658 | } |
463ee0b2 | 3659 | incline(s); |
3280af22 NIS |
3660 | } while (PL_doextract); |
3661 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
80a702cd RGS |
3662 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
3663 | update_debugger_info_sv(PL_linestr); | |
3280af22 | 3664 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 3665 | PL_last_lop = PL_last_uni = NULL; |
57843af0 | 3666 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 3667 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 3668 | s++; |
a0d0e21e | 3669 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 3670 | s++; |
5db06880 NC |
3671 | #ifdef PERL_MAD |
3672 | if (PL_madskills) | |
cd81e915 | 3673 | PL_thiswhite = newSVpvn(PL_linestart, s - PL_linestart); |
5db06880 | 3674 | #endif |
bd61b366 | 3675 | d = NULL; |
3280af22 | 3676 | if (!PL_in_eval) { |
44a8e56a | 3677 | if (*s == '#' && *(s+1) == '!') |
3678 | d = s + 2; | |
3679 | #ifdef ALTERNATE_SHEBANG | |
3680 | else { | |
bfed75c6 | 3681 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 3682 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
3683 | d = s + (sizeof(as) - 1); | |
3684 | } | |
3685 | #endif /* ALTERNATE_SHEBANG */ | |
3686 | } | |
3687 | if (d) { | |
b8378b72 | 3688 | char *ipath; |
774d564b | 3689 | char *ipathend; |
b8378b72 | 3690 | |
774d564b | 3691 | while (isSPACE(*d)) |
b8378b72 CS |
3692 | d++; |
3693 | ipath = d; | |
774d564b | 3694 | while (*d && !isSPACE(*d)) |
3695 | d++; | |
3696 | ipathend = d; | |
3697 | ||
3698 | #ifdef ARG_ZERO_IS_SCRIPT | |
3699 | if (ipathend > ipath) { | |
3700 | /* | |
3701 | * HP-UX (at least) sets argv[0] to the script name, | |
3702 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
3703 | * at least, set argv[0] to the basename of the Perl | |
3704 | * interpreter. So, having found "#!", we'll set it right. | |
3705 | */ | |
fafc274c NC |
3706 | SV * const x = GvSV(gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, |
3707 | SVt_PV)); /* $^X */ | |
774d564b | 3708 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 3709 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 3710 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 3711 | SvSETMAGIC(x); |
3712 | } | |
556c1dec JH |
3713 | else { |
3714 | STRLEN blen; | |
3715 | STRLEN llen; | |
cfd0369c | 3716 | const char *bstart = SvPV_const(CopFILESV(PL_curcop),blen); |
9d4ba2ae | 3717 | const char * const lstart = SvPV_const(x,llen); |
556c1dec JH |
3718 | if (llen < blen) { |
3719 | bstart += blen - llen; | |
3720 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
3721 | sv_setpvn(x, ipath, ipathend - ipath); | |
3722 | SvSETMAGIC(x); | |
3723 | } | |
3724 | } | |
3725 | } | |
774d564b | 3726 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 3727 | } |
774d564b | 3728 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
3729 | |
3730 | /* | |
3731 | * Look for options. | |
3732 | */ | |
748a9306 | 3733 | d = instr(s,"perl -"); |
84e30d1a | 3734 | if (!d) { |
748a9306 | 3735 | d = instr(s,"perl"); |
84e30d1a GS |
3736 | #if defined(DOSISH) |
3737 | /* avoid getting into infinite loops when shebang | |
3738 | * line contains "Perl" rather than "perl" */ | |
3739 | if (!d) { | |
3740 | for (d = ipathend-4; d >= ipath; --d) { | |
3741 | if ((*d == 'p' || *d == 'P') | |
3742 | && !ibcmp(d, "perl", 4)) | |
3743 | { | |
3744 | break; | |
3745 | } | |
3746 | } | |
3747 | if (d < ipath) | |
bd61b366 | 3748 | d = NULL; |
84e30d1a GS |
3749 | } |
3750 | #endif | |
3751 | } | |
44a8e56a | 3752 | #ifdef ALTERNATE_SHEBANG |
3753 | /* | |
3754 | * If the ALTERNATE_SHEBANG on this system starts with a | |
3755 | * character that can be part of a Perl expression, then if | |
3756 | * we see it but not "perl", we're probably looking at the | |
3757 | * start of Perl code, not a request to hand off to some | |
3758 | * other interpreter. Similarly, if "perl" is there, but | |
3759 | * not in the first 'word' of the line, we assume the line | |
3760 | * contains the start of the Perl program. | |
44a8e56a | 3761 | */ |
3762 | if (d && *s != '#') { | |
f54cb97a | 3763 | const char *c = ipath; |
44a8e56a | 3764 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
3765 | c++; | |
3766 | if (c < d) | |
bd61b366 | 3767 | d = NULL; /* "perl" not in first word; ignore */ |
44a8e56a | 3768 | else |
3769 | *s = '#'; /* Don't try to parse shebang line */ | |
3770 | } | |
774d564b | 3771 | #endif /* ALTERNATE_SHEBANG */ |
bf4acbe4 | 3772 | #ifndef MACOS_TRADITIONAL |
748a9306 | 3773 | if (!d && |
44a8e56a | 3774 | *s == '#' && |
774d564b | 3775 | ipathend > ipath && |
3280af22 | 3776 | !PL_minus_c && |
748a9306 | 3777 | !instr(s,"indir") && |
3280af22 | 3778 | instr(PL_origargv[0],"perl")) |
748a9306 | 3779 | { |
27da23d5 | 3780 | dVAR; |
9f68db38 | 3781 | char **newargv; |
9f68db38 | 3782 | |
774d564b | 3783 | *ipathend = '\0'; |
3784 | s = ipathend + 1; | |
3280af22 | 3785 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 3786 | s++; |
3280af22 | 3787 | if (s < PL_bufend) { |
a02a5408 | 3788 | Newxz(newargv,PL_origargc+3,char*); |
9f68db38 | 3789 | newargv[1] = s; |
3280af22 | 3790 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
3791 | s++; |
3792 | *s = '\0'; | |
3280af22 | 3793 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
3794 | } |
3795 | else | |
3280af22 | 3796 | newargv = PL_origargv; |
774d564b | 3797 | newargv[0] = ipath; |
b35112e7 | 3798 | PERL_FPU_PRE_EXEC |
b4748376 | 3799 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
b35112e7 | 3800 | PERL_FPU_POST_EXEC |
cea2e8a9 | 3801 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 3802 | } |
bf4acbe4 | 3803 | #endif |
748a9306 | 3804 | if (d) { |
c35e046a AL |
3805 | while (*d && !isSPACE(*d)) |
3806 | d++; | |
3807 | while (SPACE_OR_TAB(*d)) | |
3808 | d++; | |
748a9306 LW |
3809 | |
3810 | if (*d++ == '-') { | |
f54cb97a | 3811 | const bool switches_done = PL_doswitches; |
fb993905 GA |
3812 | const U32 oldpdb = PL_perldb; |
3813 | const bool oldn = PL_minus_n; | |
3814 | const bool oldp = PL_minus_p; | |
3815 | ||
8cc95fdb | 3816 | do { |
3ffe3ee4 | 3817 | if (*d == 'M' || *d == 'm' || *d == 'C') { |
9d4ba2ae | 3818 | const char * const m = d; |
d4c19fe8 AL |
3819 | while (*d && !isSPACE(*d)) |
3820 | d++; | |
cea2e8a9 | 3821 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
8cc95fdb | 3822 | (int)(d - m), m); |
3823 | } | |
97bd5664 | 3824 | d = moreswitches(d); |
8cc95fdb | 3825 | } while (d); |
f0b2cf55 YST |
3826 | if (PL_doswitches && !switches_done) { |
3827 | int argc = PL_origargc; | |
3828 | char **argv = PL_origargv; | |
3829 | do { | |
3830 | argc--,argv++; | |
3831 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
3832 | init_argv_symbols(argc,argv); | |
3833 | } | |
155aba94 GS |
3834 | if ((PERLDB_LINE && !oldpdb) || |
3835 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) | |
b084f20b | 3836 | /* if we have already added "LINE: while (<>) {", |
3837 | we must not do it again */ | |
748a9306 | 3838 | { |
c69006e4 | 3839 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3840 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3841 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3842 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3843 | PL_preambled = FALSE; |
84902520 | 3844 | if (PERLDB_LINE) |
3280af22 | 3845 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
3846 | goto retry; |
3847 | } | |
a0d0e21e | 3848 | } |
79072805 | 3849 | } |
9f68db38 | 3850 | } |
79072805 | 3851 | } |
3280af22 NIS |
3852 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3853 | PL_bufptr = s; | |
3854 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3855 | return yylex(); |
ae986130 | 3856 | } |
378cc40b | 3857 | goto retry; |
4fdae800 | 3858 | case '\r': |
6a27c188 | 3859 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 3860 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 3861 | Perl_croak(aTHX_ |
cc507455 | 3862 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 3863 | #endif |
4fdae800 | 3864 | case ' ': case '\t': case '\f': case 013: |
bf4acbe4 GS |
3865 | #ifdef MACOS_TRADITIONAL |
3866 | case '\312': | |
3867 | #endif | |
5db06880 | 3868 | #ifdef PERL_MAD |
cd81e915 | 3869 | PL_realtokenstart = -1; |
5db06880 NC |
3870 | s = SKIPSPACE0(s); |
3871 | #else | |
378cc40b | 3872 | s++; |
5db06880 | 3873 | #endif |
378cc40b | 3874 | goto retry; |
378cc40b | 3875 | case '#': |
e929a76b | 3876 | case '\n': |
5db06880 | 3877 | #ifdef PERL_MAD |
cd81e915 | 3878 | PL_realtokenstart = -1; |
5db06880 | 3879 | if (PL_madskills) |
cd81e915 | 3880 | PL_faketokens = 0; |
5db06880 | 3881 | #endif |
3280af22 | 3882 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
3883 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
3884 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
3885 | CopLINE_dec(PL_curcop); | |
3886 | incline(s); | |
3887 | } | |
5db06880 NC |
3888 | if (PL_madskills && !PL_lex_formbrack && !PL_in_eval) { |
3889 | s = SKIPSPACE0(s); | |
3890 | if (!PL_in_eval || PL_rsfp) | |
3891 | incline(s); | |
3892 | } | |
3893 | else { | |
3894 | d = s; | |
3895 | while (d < PL_bufend && *d != '\n') | |
3896 | d++; | |
3897 | if (d < PL_bufend) | |
3898 | d++; | |
3899 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
3900 | Perl_croak(aTHX_ "panic: input overflow"); | |
3901 | #ifdef PERL_MAD | |
3902 | if (PL_madskills) | |
cd81e915 | 3903 | PL_thiswhite = newSVpvn(s, d - s); |
5db06880 NC |
3904 | #endif |
3905 | s = d; | |
3906 | incline(s); | |
3907 | } | |
3280af22 NIS |
3908 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3909 | PL_bufptr = s; | |
3910 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3911 | return yylex(); |
a687059c | 3912 | } |
378cc40b | 3913 | } |
a687059c | 3914 | else { |
5db06880 NC |
3915 | #ifdef PERL_MAD |
3916 | if (PL_madskills && CopLINE(PL_curcop) >= 1 && !PL_lex_formbrack) { | |
3917 | if (CopLINE(PL_curcop) == 1 && s[0] == '#' && s[1] == '!') { | |
cd81e915 | 3918 | PL_faketokens = 0; |
5db06880 NC |
3919 | s = SKIPSPACE0(s); |
3920 | TOKEN(PEG); /* make sure any #! line is accessible */ | |
3921 | } | |
3922 | s = SKIPSPACE0(s); | |
3923 | } | |
3924 | else { | |
3925 | /* if (PL_madskills && PL_lex_formbrack) { */ | |
3926 | d = s; | |
3927 | while (d < PL_bufend && *d != '\n') | |
3928 | d++; | |
3929 | if (d < PL_bufend) | |
3930 | d++; | |
3931 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
3932 | Perl_croak(aTHX_ "panic: input overflow"); | |
3933 | if (PL_madskills && CopLINE(PL_curcop) >= 1) { | |
cd81e915 | 3934 | if (!PL_thiswhite) |
6b29d1f5 | 3935 | PL_thiswhite = newSVpvs(""); |
5db06880 | 3936 | if (CopLINE(PL_curcop) == 1) { |
cd81e915 NC |
3937 | sv_setpvn(PL_thiswhite, "", 0); |
3938 | PL_faketokens = 0; | |
5db06880 | 3939 | } |
cd81e915 | 3940 | sv_catpvn(PL_thiswhite, s, d - s); |
5db06880 NC |
3941 | } |
3942 | s = d; | |
3943 | /* } | |
3944 | *s = '\0'; | |
3945 | PL_bufend = s; */ | |
3946 | } | |
3947 | #else | |
378cc40b | 3948 | *s = '\0'; |
3280af22 | 3949 | PL_bufend = s; |
5db06880 | 3950 | #endif |
a687059c | 3951 | } |
378cc40b LW |
3952 | goto retry; |
3953 | case '-': | |
79072805 | 3954 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 | 3955 | I32 ftst = 0; |
90771dc0 | 3956 | char tmp; |
e5edeb50 | 3957 | |
378cc40b | 3958 | s++; |
3280af22 | 3959 | PL_bufptr = s; |
748a9306 LW |
3960 | tmp = *s++; |
3961 | ||
bf4acbe4 | 3962 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
3963 | s++; |
3964 | ||
3965 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 3966 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
931e0695 | 3967 | DEBUG_T( { printbuf("### Saw unary minus before =>, forcing word %s\n", s); } ); |
748a9306 LW |
3968 | OPERATOR('-'); /* unary minus */ |
3969 | } | |
3280af22 | 3970 | PL_last_uni = PL_oldbufptr; |
748a9306 | 3971 | switch (tmp) { |
e5edeb50 JH |
3972 | case 'r': ftst = OP_FTEREAD; break; |
3973 | case 'w': ftst = OP_FTEWRITE; break; | |
3974 | case 'x': ftst = OP_FTEEXEC; break; | |
3975 | case 'o': ftst = OP_FTEOWNED; break; | |
3976 | case 'R': ftst = OP_FTRREAD; break; | |
3977 | case 'W': ftst = OP_FTRWRITE; break; | |
3978 | case 'X': ftst = OP_FTREXEC; break; | |
3979 | case 'O': ftst = OP_FTROWNED; break; | |
3980 | case 'e': ftst = OP_FTIS; break; | |
3981 | case 'z': ftst = OP_FTZERO; break; | |
3982 | case 's': ftst = OP_FTSIZE; break; | |
3983 | case 'f': ftst = OP_FTFILE; break; | |
3984 | case 'd': ftst = OP_FTDIR; break; | |
3985 | case 'l': ftst = OP_FTLINK; break; | |
3986 | case 'p': ftst = OP_FTPIPE; break; | |
3987 | case 'S': ftst = OP_FTSOCK; break; | |
3988 | case 'u': ftst = OP_FTSUID; break; | |
3989 | case 'g': ftst = OP_FTSGID; break; | |
3990 | case 'k': ftst = OP_FTSVTX; break; | |
3991 | case 'b': ftst = OP_FTBLK; break; | |
3992 | case 'c': ftst = OP_FTCHR; break; | |
3993 | case 't': ftst = OP_FTTTY; break; | |
3994 | case 'T': ftst = OP_FTTEXT; break; | |
3995 | case 'B': ftst = OP_FTBINARY; break; | |
3996 | case 'M': case 'A': case 'C': | |
fafc274c | 3997 | gv_fetchpvs("\024", GV_ADD|GV_NOTQUAL, SVt_PV); |
e5edeb50 JH |
3998 | switch (tmp) { |
3999 | case 'M': ftst = OP_FTMTIME; break; | |
4000 | case 'A': ftst = OP_FTATIME; break; | |
4001 | case 'C': ftst = OP_FTCTIME; break; | |
4002 | default: break; | |
4003 | } | |
4004 | break; | |
378cc40b | 4005 | default: |
378cc40b LW |
4006 | break; |
4007 | } | |
e5edeb50 | 4008 | if (ftst) { |
eb160463 | 4009 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 4010 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a18d764d | 4011 | "### Saw file test %c\n", (int)tmp); |
5f80b19c | 4012 | } ); |
e5edeb50 JH |
4013 | FTST(ftst); |
4014 | } | |
4015 | else { | |
4016 | /* Assume it was a minus followed by a one-letter named | |
4017 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 4018 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
17ad61e0 | 4019 | "### '-%c' looked like a file test but was not\n", |
4fccd7c6 | 4020 | (int) tmp); |
5f80b19c | 4021 | } ); |
3cf7b4c4 | 4022 | s = --PL_bufptr; |
e5edeb50 | 4023 | } |
378cc40b | 4024 | } |
90771dc0 NC |
4025 | { |
4026 | const char tmp = *s++; | |
4027 | if (*s == tmp) { | |
4028 | s++; | |
4029 | if (PL_expect == XOPERATOR) | |
4030 | TERM(POSTDEC); | |
4031 | else | |
4032 | OPERATOR(PREDEC); | |
4033 | } | |
4034 | else if (*s == '>') { | |
4035 | s++; | |
29595ff2 | 4036 | s = SKIPSPACE1(s); |
90771dc0 NC |
4037 | if (isIDFIRST_lazy_if(s,UTF)) { |
4038 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); | |
4039 | TOKEN(ARROW); | |
4040 | } | |
4041 | else if (*s == '$') | |
4042 | OPERATOR(ARROW); | |
4043 | else | |
4044 | TERM(ARROW); | |
4045 | } | |
3280af22 | 4046 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4047 | Aop(OP_SUBTRACT); |
4048 | else { | |
4049 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4050 | check_uni(); | |
4051 | OPERATOR('-'); /* unary minus */ | |
79072805 | 4052 | } |
2f3197b3 | 4053 | } |
79072805 | 4054 | |
378cc40b | 4055 | case '+': |
90771dc0 NC |
4056 | { |
4057 | const char tmp = *s++; | |
4058 | if (*s == tmp) { | |
4059 | s++; | |
4060 | if (PL_expect == XOPERATOR) | |
4061 | TERM(POSTINC); | |
4062 | else | |
4063 | OPERATOR(PREINC); | |
4064 | } | |
3280af22 | 4065 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4066 | Aop(OP_ADD); |
4067 | else { | |
4068 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4069 | check_uni(); | |
4070 | OPERATOR('+'); | |
4071 | } | |
2f3197b3 | 4072 | } |
a687059c | 4073 | |
378cc40b | 4074 | case '*': |
3280af22 NIS |
4075 | if (PL_expect != XOPERATOR) { |
4076 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
4077 | PL_expect = XOPERATOR; | |
4078 | force_ident(PL_tokenbuf, '*'); | |
4079 | if (!*PL_tokenbuf) | |
a0d0e21e | 4080 | PREREF('*'); |
79072805 | 4081 | TERM('*'); |
a687059c | 4082 | } |
79072805 LW |
4083 | s++; |
4084 | if (*s == '*') { | |
a687059c | 4085 | s++; |
79072805 | 4086 | PWop(OP_POW); |
a687059c | 4087 | } |
79072805 LW |
4088 | Mop(OP_MULTIPLY); |
4089 | ||
378cc40b | 4090 | case '%': |
3280af22 | 4091 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 4092 | ++s; |
4093 | Mop(OP_MODULO); | |
a687059c | 4094 | } |
3280af22 NIS |
4095 | PL_tokenbuf[0] = '%'; |
4096 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, TRUE); | |
4097 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 4098 | PREREF('%'); |
a687059c | 4099 | } |
3280af22 | 4100 | PL_pending_ident = '%'; |
bbce6d69 | 4101 | TERM('%'); |
a687059c | 4102 | |
378cc40b | 4103 | case '^': |
79072805 | 4104 | s++; |
a0d0e21e | 4105 | BOop(OP_BIT_XOR); |
79072805 | 4106 | case '[': |
3280af22 | 4107 | PL_lex_brackets++; |
79072805 | 4108 | /* FALL THROUGH */ |
378cc40b | 4109 | case '~': |
0d863452 RH |
4110 | if (s[1] == '~' |
4111 | && (PL_expect == XOPERATOR || PL_expect == XTERMORDORDOR) | |
ef89dcc3 | 4112 | && FEATURE_IS_ENABLED("~~")) |
0d863452 RH |
4113 | { |
4114 | s += 2; | |
4115 | Eop(OP_SMARTMATCH); | |
4116 | } | |
378cc40b | 4117 | case ',': |
90771dc0 NC |
4118 | { |
4119 | const char tmp = *s++; | |
4120 | OPERATOR(tmp); | |
4121 | } | |
a0d0e21e LW |
4122 | case ':': |
4123 | if (s[1] == ':') { | |
4124 | len = 0; | |
0bfa2a8a | 4125 | goto just_a_word_zero_gv; |
a0d0e21e LW |
4126 | } |
4127 | s++; | |
09bef843 SB |
4128 | switch (PL_expect) { |
4129 | OP *attrs; | |
5db06880 NC |
4130 | #ifdef PERL_MAD |
4131 | I32 stuffstart; | |
4132 | #endif | |
09bef843 SB |
4133 | case XOPERATOR: |
4134 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
4135 | break; | |
4136 | PL_bufptr = s; /* update in case we back off */ | |
4137 | goto grabattrs; | |
4138 | case XATTRBLOCK: | |
4139 | PL_expect = XBLOCK; | |
4140 | goto grabattrs; | |
4141 | case XATTRTERM: | |
4142 | PL_expect = XTERMBLOCK; | |
4143 | grabattrs: | |
5db06880 NC |
4144 | #ifdef PERL_MAD |
4145 | stuffstart = s - SvPVX(PL_linestr) - 1; | |
4146 | #endif | |
29595ff2 | 4147 | s = PEEKSPACE(s); |
5f66b61c | 4148 | attrs = NULL; |
7e2040f0 | 4149 | while (isIDFIRST_lazy_if(s,UTF)) { |
90771dc0 | 4150 | I32 tmp; |
5cc237b8 | 4151 | SV *sv; |
09bef843 | 4152 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 4153 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len, 0))) { |
f9829d6b GS |
4154 | if (tmp < 0) tmp = -tmp; |
4155 | switch (tmp) { | |
4156 | case KEY_or: | |
4157 | case KEY_and: | |
c963b151 | 4158 | case KEY_err: |
f9829d6b GS |
4159 | case KEY_for: |
4160 | case KEY_unless: | |
4161 | case KEY_if: | |
4162 | case KEY_while: | |
4163 | case KEY_until: | |
4164 | goto got_attrs; | |
4165 | default: | |
4166 | break; | |
4167 | } | |
4168 | } | |
5cc237b8 | 4169 | sv = newSVpvn(s, len); |
09bef843 SB |
4170 | if (*d == '(') { |
4171 | d = scan_str(d,TRUE,TRUE); | |
4172 | if (!d) { | |
09bef843 SB |
4173 | /* MUST advance bufptr here to avoid bogus |
4174 | "at end of line" context messages from yyerror(). | |
4175 | */ | |
4176 | PL_bufptr = s + len; | |
4177 | yyerror("Unterminated attribute parameter in attribute list"); | |
4178 | if (attrs) | |
4179 | op_free(attrs); | |
5cc237b8 | 4180 | sv_free(sv); |
bbf60fe6 | 4181 | return REPORT(0); /* EOF indicator */ |
09bef843 SB |
4182 | } |
4183 | } | |
4184 | if (PL_lex_stuff) { | |
09bef843 SB |
4185 | sv_catsv(sv, PL_lex_stuff); |
4186 | attrs = append_elem(OP_LIST, attrs, | |
4187 | newSVOP(OP_CONST, 0, sv)); | |
4188 | SvREFCNT_dec(PL_lex_stuff); | |
a0714e2c | 4189 | PL_lex_stuff = NULL; |
09bef843 SB |
4190 | } |
4191 | else { | |
5cc237b8 BS |
4192 | if (len == 6 && strnEQ(SvPVX(sv), "unique", len)) { |
4193 | sv_free(sv); | |
1108974d | 4194 | if (PL_in_my == KEY_our) { |
371fce9b DM |
4195 | #ifdef USE_ITHREADS |
4196 | GvUNIQUE_on(cGVOPx_gv(yylval.opval)); | |
4197 | #else | |
1108974d | 4198 | /* skip to avoid loading attributes.pm */ |
371fce9b | 4199 | #endif |
df9a6019 | 4200 | deprecate(":unique"); |
1108974d | 4201 | } |
bfed75c6 | 4202 | else |
371fce9b DM |
4203 | Perl_croak(aTHX_ "The 'unique' attribute may only be applied to 'our' variables"); |
4204 | } | |
4205 | ||
d3cea301 SB |
4206 | /* NOTE: any CV attrs applied here need to be part of |
4207 | the CVf_BUILTIN_ATTRS define in cv.h! */ | |
5cc237b8 BS |
4208 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "lvalue", len)) { |
4209 | sv_free(sv); | |
78f9721b | 4210 | CvLVALUE_on(PL_compcv); |
5cc237b8 BS |
4211 | } |
4212 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "locked", len)) { | |
4213 | sv_free(sv); | |
78f9721b | 4214 | CvLOCKED_on(PL_compcv); |
5cc237b8 BS |
4215 | } |
4216 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "method", len)) { | |
4217 | sv_free(sv); | |
78f9721b | 4218 | CvMETHOD_on(PL_compcv); |
5cc237b8 BS |
4219 | } |
4220 | else if (!PL_in_my && len == 9 && strnEQ(SvPVX(sv), "assertion", len)) { | |
4221 | sv_free(sv); | |
06492da6 | 4222 | CvASSERTION_on(PL_compcv); |
5cc237b8 | 4223 | } |
78f9721b SM |
4224 | /* After we've set the flags, it could be argued that |
4225 | we don't need to do the attributes.pm-based setting | |
4226 | process, and shouldn't bother appending recognized | |
d3cea301 SB |
4227 | flags. To experiment with that, uncomment the |
4228 | following "else". (Note that's already been | |
4229 | uncommented. That keeps the above-applied built-in | |
4230 | attributes from being intercepted (and possibly | |
4231 | rejected) by a package's attribute routines, but is | |
4232 | justified by the performance win for the common case | |
4233 | of applying only built-in attributes.) */ | |
0256094b | 4234 | else |
78f9721b SM |
4235 | attrs = append_elem(OP_LIST, attrs, |
4236 | newSVOP(OP_CONST, 0, | |
5cc237b8 | 4237 | sv)); |
09bef843 | 4238 | } |
29595ff2 | 4239 | s = PEEKSPACE(d); |
0120eecf | 4240 | if (*s == ':' && s[1] != ':') |
29595ff2 | 4241 | s = PEEKSPACE(s+1); |
0120eecf GS |
4242 | else if (s == d) |
4243 | break; /* require real whitespace or :'s */ | |
29595ff2 | 4244 | /* XXX losing whitespace on sequential attributes here */ |
09bef843 | 4245 | } |
90771dc0 NC |
4246 | { |
4247 | const char tmp | |
4248 | = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ | |
4249 | if (*s != ';' && *s != '}' && *s != tmp | |
4250 | && (tmp != '=' || *s != ')')) { | |
4251 | const char q = ((*s == '\'') ? '"' : '\''); | |
4252 | /* If here for an expression, and parsed no attrs, back | |
4253 | off. */ | |
4254 | if (tmp == '=' && !attrs) { | |
4255 | s = PL_bufptr; | |
4256 | break; | |
4257 | } | |
4258 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
4259 | context messages from yyerror(). | |
4260 | */ | |
4261 | PL_bufptr = s; | |
10edeb5d JH |
4262 | yyerror( (const char *) |
4263 | (*s | |
4264 | ? Perl_form(aTHX_ "Invalid separator character " | |
4265 | "%c%c%c in attribute list", q, *s, q) | |
4266 | : "Unterminated attribute list" ) ); | |
90771dc0 NC |
4267 | if (attrs) |
4268 | op_free(attrs); | |
4269 | OPERATOR(':'); | |
09bef843 | 4270 | } |
09bef843 | 4271 | } |
f9829d6b | 4272 | got_attrs: |
09bef843 | 4273 | if (attrs) { |
cd81e915 | 4274 | start_force(PL_curforce); |
9ded7720 | 4275 | NEXTVAL_NEXTTOKE.opval = attrs; |
cd81e915 | 4276 | CURMAD('_', PL_nextwhite); |
89122651 | 4277 | force_next(THING); |
5db06880 NC |
4278 | } |
4279 | #ifdef PERL_MAD | |
4280 | if (PL_madskills) { | |
cd81e915 | 4281 | PL_thistoken = newSVpvn(SvPVX(PL_linestr) + stuffstart, |
5db06880 | 4282 | (s - SvPVX(PL_linestr)) - stuffstart); |
09bef843 | 4283 | } |
5db06880 | 4284 | #endif |
09bef843 SB |
4285 | TOKEN(COLONATTR); |
4286 | } | |
a0d0e21e | 4287 | OPERATOR(':'); |
8990e307 LW |
4288 | case '(': |
4289 | s++; | |
3280af22 NIS |
4290 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
4291 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 4292 | else |
3280af22 | 4293 | PL_expect = XTERM; |
29595ff2 | 4294 | s = SKIPSPACE1(s); |
a0d0e21e | 4295 | TOKEN('('); |
378cc40b | 4296 | case ';': |
f4dd75d9 | 4297 | CLINE; |
90771dc0 NC |
4298 | { |
4299 | const char tmp = *s++; | |
4300 | OPERATOR(tmp); | |
4301 | } | |
378cc40b | 4302 | case ')': |
90771dc0 NC |
4303 | { |
4304 | const char tmp = *s++; | |
29595ff2 | 4305 | s = SKIPSPACE1(s); |
90771dc0 NC |
4306 | if (*s == '{') |
4307 | PREBLOCK(tmp); | |
4308 | TERM(tmp); | |
4309 | } | |
79072805 LW |
4310 | case ']': |
4311 | s++; | |
3280af22 | 4312 | if (PL_lex_brackets <= 0) |
d98d5fff | 4313 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 4314 | else |
3280af22 NIS |
4315 | --PL_lex_brackets; |
4316 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4317 | if (PL_lex_brackets == 0) { | |
a0d0e21e | 4318 | if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>')) |
3280af22 | 4319 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4320 | } |
4321 | } | |
4633a7c4 | 4322 | TERM(']'); |
79072805 LW |
4323 | case '{': |
4324 | leftbracket: | |
79072805 | 4325 | s++; |
3280af22 | 4326 | if (PL_lex_brackets > 100) { |
8edd5f42 | 4327 | Renew(PL_lex_brackstack, PL_lex_brackets + 10, char); |
8990e307 | 4328 | } |
3280af22 | 4329 | switch (PL_expect) { |
a0d0e21e | 4330 | case XTERM: |
3280af22 | 4331 | if (PL_lex_formbrack) { |
a0d0e21e LW |
4332 | s--; |
4333 | PRETERMBLOCK(DO); | |
4334 | } | |
3280af22 NIS |
4335 | if (PL_oldoldbufptr == PL_last_lop) |
4336 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4337 | else |
3280af22 | 4338 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 4339 | OPERATOR(HASHBRACK); |
a0d0e21e | 4340 | case XOPERATOR: |
bf4acbe4 | 4341 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 4342 | s++; |
44a8e56a | 4343 | d = s; |
3280af22 NIS |
4344 | PL_tokenbuf[0] = '\0'; |
4345 | if (d < PL_bufend && *d == '-') { | |
4346 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 4347 | d++; |
bf4acbe4 | 4348 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 4349 | d++; |
4350 | } | |
7e2040f0 | 4351 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 4352 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 4353 | FALSE, &len); |
bf4acbe4 | 4354 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
4355 | d++; |
4356 | if (*d == '}') { | |
f54cb97a | 4357 | const char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 4358 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
4359 | if (minus) | |
4360 | force_next('-'); | |
748a9306 LW |
4361 | } |
4362 | } | |
4363 | /* FALL THROUGH */ | |
09bef843 | 4364 | case XATTRBLOCK: |
748a9306 | 4365 | case XBLOCK: |
3280af22 NIS |
4366 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
4367 | PL_expect = XSTATE; | |
a0d0e21e | 4368 | break; |
09bef843 | 4369 | case XATTRTERM: |
a0d0e21e | 4370 | case XTERMBLOCK: |
3280af22 NIS |
4371 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
4372 | PL_expect = XSTATE; | |
a0d0e21e LW |
4373 | break; |
4374 | default: { | |
f54cb97a | 4375 | const char *t; |
3280af22 NIS |
4376 | if (PL_oldoldbufptr == PL_last_lop) |
4377 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4378 | else |
3280af22 | 4379 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
29595ff2 | 4380 | s = SKIPSPACE1(s); |
8452ff4b SB |
4381 | if (*s == '}') { |
4382 | if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) { | |
4383 | PL_expect = XTERM; | |
4384 | /* This hack is to get the ${} in the message. */ | |
4385 | PL_bufptr = s+1; | |
4386 | yyerror("syntax error"); | |
4387 | break; | |
4388 | } | |
a0d0e21e | 4389 | OPERATOR(HASHBRACK); |
8452ff4b | 4390 | } |
b8a4b1be GS |
4391 | /* This hack serves to disambiguate a pair of curlies |
4392 | * as being a block or an anon hash. Normally, expectation | |
4393 | * determines that, but in cases where we're not in a | |
4394 | * position to expect anything in particular (like inside | |
4395 | * eval"") we have to resolve the ambiguity. This code | |
4396 | * covers the case where the first term in the curlies is a | |
4397 | * quoted string. Most other cases need to be explicitly | |
a0288114 | 4398 | * disambiguated by prepending a "+" before the opening |
b8a4b1be GS |
4399 | * curly in order to force resolution as an anon hash. |
4400 | * | |
4401 | * XXX should probably propagate the outer expectation | |
4402 | * into eval"" to rely less on this hack, but that could | |
4403 | * potentially break current behavior of eval"". | |
4404 | * GSAR 97-07-21 | |
4405 | */ | |
4406 | t = s; | |
4407 | if (*s == '\'' || *s == '"' || *s == '`') { | |
4408 | /* common case: get past first string, handling escapes */ | |
3280af22 | 4409 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
4410 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
4411 | t++; | |
4412 | t++; | |
a0d0e21e | 4413 | } |
b8a4b1be | 4414 | else if (*s == 'q') { |
3280af22 | 4415 | if (++t < PL_bufend |
b8a4b1be | 4416 | && (!isALNUM(*t) |
3280af22 | 4417 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
4418 | && !isALNUM(*t)))) |
4419 | { | |
abc667d1 | 4420 | /* skip q//-like construct */ |
f54cb97a | 4421 | const char *tmps; |
b8a4b1be GS |
4422 | char open, close, term; |
4423 | I32 brackets = 1; | |
4424 | ||
3280af22 | 4425 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be | 4426 | t++; |
abc667d1 DM |
4427 | /* check for q => */ |
4428 | if (t+1 < PL_bufend && t[0] == '=' && t[1] == '>') { | |
4429 | OPERATOR(HASHBRACK); | |
4430 | } | |
b8a4b1be GS |
4431 | term = *t; |
4432 | open = term; | |
4433 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
4434 | term = tmps[5]; | |
4435 | close = term; | |
4436 | if (open == close) | |
3280af22 NIS |
4437 | for (t++; t < PL_bufend; t++) { |
4438 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 4439 | t++; |
6d07e5e9 | 4440 | else if (*t == open) |
b8a4b1be GS |
4441 | break; |
4442 | } | |
abc667d1 | 4443 | else { |
3280af22 NIS |
4444 | for (t++; t < PL_bufend; t++) { |
4445 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 4446 | t++; |
6d07e5e9 | 4447 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
4448 | break; |
4449 | else if (*t == open) | |
4450 | brackets++; | |
4451 | } | |
abc667d1 DM |
4452 | } |
4453 | t++; | |
b8a4b1be | 4454 | } |
abc667d1 DM |
4455 | else |
4456 | /* skip plain q word */ | |
4457 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) | |
4458 | t += UTF8SKIP(t); | |
a0d0e21e | 4459 | } |
7e2040f0 | 4460 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 4461 | t += UTF8SKIP(t); |
7e2040f0 | 4462 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 4463 | t += UTF8SKIP(t); |
a0d0e21e | 4464 | } |
3280af22 | 4465 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 4466 | t++; |
b8a4b1be GS |
4467 | /* if comma follows first term, call it an anon hash */ |
4468 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 4469 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 4470 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 4471 | OPERATOR(HASHBRACK); |
3280af22 | 4472 | if (PL_expect == XREF) |
4e4e412b | 4473 | PL_expect = XTERM; |
a0d0e21e | 4474 | else { |
3280af22 NIS |
4475 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
4476 | PL_expect = XSTATE; | |
a0d0e21e | 4477 | } |
8990e307 | 4478 | } |
a0d0e21e | 4479 | break; |
463ee0b2 | 4480 | } |
57843af0 | 4481 | yylval.ival = CopLINE(PL_curcop); |
79072805 | 4482 | if (isSPACE(*s) || *s == '#') |
3280af22 | 4483 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 4484 | TOKEN('{'); |
378cc40b | 4485 | case '}': |
79072805 LW |
4486 | rightbracket: |
4487 | s++; | |
3280af22 | 4488 | if (PL_lex_brackets <= 0) |
d98d5fff | 4489 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 4490 | else |
3280af22 | 4491 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 4492 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
4493 | PL_lex_formbrack = 0; |
4494 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4495 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
4496 | if (PL_expect & XFAKEBRACK) { |
4497 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
4498 | PL_lex_state = LEX_INTERPEND; |
4499 | PL_bufptr = s; | |
5db06880 NC |
4500 | #if 0 |
4501 | if (PL_madskills) { | |
cd81e915 | 4502 | if (!PL_thiswhite) |
6b29d1f5 | 4503 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4504 | sv_catpvn(PL_thiswhite,"}",1); |
5db06880 NC |
4505 | } |
4506 | #endif | |
cea2e8a9 | 4507 | return yylex(); /* ignore fake brackets */ |
79072805 | 4508 | } |
fa83b5b6 | 4509 | if (*s == '-' && s[1] == '>') |
3280af22 | 4510 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 4511 | else if (*s != '[' && *s != '{') |
3280af22 | 4512 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4513 | } |
4514 | } | |
9059aa12 LW |
4515 | if (PL_expect & XFAKEBRACK) { |
4516 | PL_expect &= XENUMMASK; | |
3280af22 | 4517 | PL_bufptr = s; |
cea2e8a9 | 4518 | return yylex(); /* ignore fake brackets */ |
748a9306 | 4519 | } |
cd81e915 | 4520 | start_force(PL_curforce); |
5db06880 NC |
4521 | if (PL_madskills) { |
4522 | curmad('X', newSVpvn(s-1,1)); | |
cd81e915 | 4523 | CURMAD('_', PL_thiswhite); |
5db06880 | 4524 | } |
79072805 | 4525 | force_next('}'); |
5db06880 | 4526 | #ifdef PERL_MAD |
cd81e915 | 4527 | if (!PL_thistoken) |
6b29d1f5 | 4528 | PL_thistoken = newSVpvs(""); |
5db06880 | 4529 | #endif |
79072805 | 4530 | TOKEN(';'); |
378cc40b LW |
4531 | case '&': |
4532 | s++; | |
90771dc0 | 4533 | if (*s++ == '&') |
a0d0e21e | 4534 | AOPERATOR(ANDAND); |
378cc40b | 4535 | s--; |
3280af22 | 4536 | if (PL_expect == XOPERATOR) { |
041457d9 DM |
4537 | if (PL_bufptr == PL_linestart && ckWARN(WARN_SEMICOLON) |
4538 | && isIDFIRST_lazy_if(s,UTF)) | |
7e2040f0 | 4539 | { |
57843af0 | 4540 | CopLINE_dec(PL_curcop); |
9014280d | 4541 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 4542 | CopLINE_inc(PL_curcop); |
463ee0b2 | 4543 | } |
79072805 | 4544 | BAop(OP_BIT_AND); |
463ee0b2 | 4545 | } |
79072805 | 4546 | |
3280af22 NIS |
4547 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
4548 | if (*PL_tokenbuf) { | |
4549 | PL_expect = XOPERATOR; | |
4550 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 4551 | } |
79072805 LW |
4552 | else |
4553 | PREREF('&'); | |
c07a80fd | 4554 | yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
4555 | TERM('&'); |
4556 | ||
378cc40b LW |
4557 | case '|': |
4558 | s++; | |
90771dc0 | 4559 | if (*s++ == '|') |
a0d0e21e | 4560 | AOPERATOR(OROR); |
378cc40b | 4561 | s--; |
79072805 | 4562 | BOop(OP_BIT_OR); |
378cc40b LW |
4563 | case '=': |
4564 | s++; | |
748a9306 | 4565 | { |
90771dc0 NC |
4566 | const char tmp = *s++; |
4567 | if (tmp == '=') | |
4568 | Eop(OP_EQ); | |
4569 | if (tmp == '>') | |
4570 | OPERATOR(','); | |
4571 | if (tmp == '~') | |
4572 | PMop(OP_MATCH); | |
4573 | if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX) | |
4574 | && strchr("+-*/%.^&|<",tmp)) | |
4575 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4576 | "Reversed %c= operator",(int)tmp); | |
4577 | s--; | |
4578 | if (PL_expect == XSTATE && isALPHA(tmp) && | |
4579 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
4580 | { | |
4581 | if (PL_in_eval && !PL_rsfp) { | |
4582 | d = PL_bufend; | |
4583 | while (s < d) { | |
4584 | if (*s++ == '\n') { | |
4585 | incline(s); | |
4586 | if (strnEQ(s,"=cut",4)) { | |
4587 | s = strchr(s,'\n'); | |
4588 | if (s) | |
4589 | s++; | |
4590 | else | |
4591 | s = d; | |
4592 | incline(s); | |
4593 | goto retry; | |
4594 | } | |
4595 | } | |
a5f75d66 | 4596 | } |
90771dc0 | 4597 | goto retry; |
a5f75d66 | 4598 | } |
5db06880 NC |
4599 | #ifdef PERL_MAD |
4600 | if (PL_madskills) { | |
cd81e915 | 4601 | if (!PL_thiswhite) |
6b29d1f5 | 4602 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4603 | sv_catpvn(PL_thiswhite, PL_linestart, |
5db06880 NC |
4604 | PL_bufend - PL_linestart); |
4605 | } | |
4606 | #endif | |
90771dc0 NC |
4607 | s = PL_bufend; |
4608 | PL_doextract = TRUE; | |
4609 | goto retry; | |
a5f75d66 | 4610 | } |
a0d0e21e | 4611 | } |
3280af22 | 4612 | if (PL_lex_brackets < PL_lex_formbrack) { |
c35e046a | 4613 | const char *t = s; |
51882d45 | 4614 | #ifdef PERL_STRICT_CR |
c35e046a | 4615 | while (SPACE_OR_TAB(*t)) |
51882d45 | 4616 | #else |
c35e046a | 4617 | while (SPACE_OR_TAB(*t) || *t == '\r') |
51882d45 | 4618 | #endif |
c35e046a | 4619 | t++; |
a0d0e21e LW |
4620 | if (*t == '\n' || *t == '#') { |
4621 | s--; | |
3280af22 | 4622 | PL_expect = XBLOCK; |
a0d0e21e LW |
4623 | goto leftbracket; |
4624 | } | |
79072805 | 4625 | } |
a0d0e21e LW |
4626 | yylval.ival = 0; |
4627 | OPERATOR(ASSIGNOP); | |
378cc40b LW |
4628 | case '!': |
4629 | s++; | |
90771dc0 NC |
4630 | { |
4631 | const char tmp = *s++; | |
4632 | if (tmp == '=') { | |
4633 | /* was this !=~ where !~ was meant? | |
4634 | * warn on m:!=~\s+([/?]|[msy]\W|tr\W): */ | |
4635 | ||
4636 | if (*s == '~' && ckWARN(WARN_SYNTAX)) { | |
4637 | const char *t = s+1; | |
4638 | ||
4639 | while (t < PL_bufend && isSPACE(*t)) | |
4640 | ++t; | |
4641 | ||
4642 | if (*t == '/' || *t == '?' || | |
4643 | ((*t == 'm' || *t == 's' || *t == 'y') | |
4644 | && !isALNUM(t[1])) || | |
4645 | (*t == 't' && t[1] == 'r' && !isALNUM(t[2]))) | |
4646 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4647 | "!=~ should be !~"); | |
4648 | } | |
4649 | Eop(OP_NE); | |
4650 | } | |
4651 | if (tmp == '~') | |
4652 | PMop(OP_NOT); | |
4653 | } | |
378cc40b LW |
4654 | s--; |
4655 | OPERATOR('!'); | |
4656 | case '<': | |
3280af22 | 4657 | if (PL_expect != XOPERATOR) { |
93a17b20 | 4658 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 4659 | check_uni(); |
79072805 LW |
4660 | if (s[1] == '<') |
4661 | s = scan_heredoc(s); | |
4662 | else | |
4663 | s = scan_inputsymbol(s); | |
4664 | TERM(sublex_start()); | |
378cc40b LW |
4665 | } |
4666 | s++; | |
90771dc0 NC |
4667 | { |
4668 | char tmp = *s++; | |
4669 | if (tmp == '<') | |
4670 | SHop(OP_LEFT_SHIFT); | |
4671 | if (tmp == '=') { | |
4672 | tmp = *s++; | |
4673 | if (tmp == '>') | |
4674 | Eop(OP_NCMP); | |
4675 | s--; | |
4676 | Rop(OP_LE); | |
4677 | } | |
395c3793 | 4678 | } |
378cc40b | 4679 | s--; |
79072805 | 4680 | Rop(OP_LT); |
378cc40b LW |
4681 | case '>': |
4682 | s++; | |
90771dc0 NC |
4683 | { |
4684 | const char tmp = *s++; | |
4685 | if (tmp == '>') | |
4686 | SHop(OP_RIGHT_SHIFT); | |
d4c19fe8 | 4687 | else if (tmp == '=') |
90771dc0 NC |
4688 | Rop(OP_GE); |
4689 | } | |
378cc40b | 4690 | s--; |
79072805 | 4691 | Rop(OP_GT); |
378cc40b LW |
4692 | |
4693 | case '$': | |
bbce6d69 | 4694 | CLINE; |
4695 | ||
3280af22 NIS |
4696 | if (PL_expect == XOPERATOR) { |
4697 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4698 | PL_expect = XTERM; | |
c445ea15 | 4699 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4700 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4701 | } |
8990e307 | 4702 | } |
a0d0e21e | 4703 | |
7e2040f0 | 4704 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-", s[2]))) { |
3280af22 | 4705 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
4706 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
4707 | sizeof PL_tokenbuf - 1, FALSE); | |
4708 | if (PL_expect == XOPERATOR) | |
4709 | no_op("Array length", s); | |
3280af22 | 4710 | if (!PL_tokenbuf[1]) |
a0d0e21e | 4711 | PREREF(DOLSHARP); |
3280af22 NIS |
4712 | PL_expect = XOPERATOR; |
4713 | PL_pending_ident = '#'; | |
463ee0b2 | 4714 | TOKEN(DOLSHARP); |
79072805 | 4715 | } |
bbce6d69 | 4716 | |
3280af22 | 4717 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
4718 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
4719 | sizeof PL_tokenbuf - 1, FALSE); | |
4720 | if (PL_expect == XOPERATOR) | |
4721 | no_op("Scalar", s); | |
3280af22 NIS |
4722 | if (!PL_tokenbuf[1]) { |
4723 | if (s == PL_bufend) | |
bbce6d69 | 4724 | yyerror("Final $ should be \\$ or $name"); |
4725 | PREREF('$'); | |
8990e307 | 4726 | } |
a0d0e21e | 4727 | |
bbce6d69 | 4728 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 4729 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
bbce6d69 | 4730 | yylval.opval = newSVOP(OP_CONST, 0, |
fc15ae8f | 4731 | newSViv(CopARYBASE_get(&PL_compiling))); |
bbce6d69 | 4732 | yylval.opval->op_private = OPpCONST_ARYBASE; |
4733 | TERM(THING); | |
4734 | } | |
4735 | ||
ff68c719 | 4736 | d = s; |
90771dc0 NC |
4737 | { |
4738 | const char tmp = *s; | |
4739 | if (PL_lex_state == LEX_NORMAL) | |
29595ff2 | 4740 | s = SKIPSPACE1(s); |
ff68c719 | 4741 | |
90771dc0 NC |
4742 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) |
4743 | && intuit_more(s)) { | |
4744 | if (*s == '[') { | |
4745 | PL_tokenbuf[0] = '@'; | |
4746 | if (ckWARN(WARN_SYNTAX)) { | |
c35e046a AL |
4747 | char *t = s+1; |
4748 | ||
4749 | while (isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$') | |
4750 | t++; | |
90771dc0 | 4751 | if (*t++ == ',') { |
29595ff2 | 4752 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
90771dc0 NC |
4753 | while (t < PL_bufend && *t != ']') |
4754 | t++; | |
9014280d | 4755 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
90771dc0 | 4756 | "Multidimensional syntax %.*s not supported", |
36c7798d | 4757 | (int)((t - PL_bufptr) + 1), PL_bufptr); |
90771dc0 | 4758 | } |
748a9306 | 4759 | } |
93a17b20 | 4760 | } |
90771dc0 NC |
4761 | else if (*s == '{') { |
4762 | char *t; | |
4763 | PL_tokenbuf[0] = '%'; | |
4764 | if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX) | |
4765 | && (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
4766 | { | |
4767 | char tmpbuf[sizeof PL_tokenbuf]; | |
c35e046a AL |
4768 | do { |
4769 | t++; | |
4770 | } while (isSPACE(*t)); | |
90771dc0 | 4771 | if (isIDFIRST_lazy_if(t,UTF)) { |
5f66b61c | 4772 | STRLEN dummylen; |
90771dc0 | 4773 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, |
5f66b61c | 4774 | &dummylen); |
c35e046a AL |
4775 | while (isSPACE(*t)) |
4776 | t++; | |
90771dc0 NC |
4777 | if (*t == ';' && get_cv(tmpbuf, FALSE)) |
4778 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4779 | "You need to quote \"%s\"", | |
4780 | tmpbuf); | |
4781 | } | |
4782 | } | |
4783 | } | |
93a17b20 | 4784 | } |
bbce6d69 | 4785 | |
90771dc0 NC |
4786 | PL_expect = XOPERATOR; |
4787 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { | |
4788 | const bool islop = (PL_last_lop == PL_oldoldbufptr); | |
4789 | if (!islop || PL_last_lop_op == OP_GREPSTART) | |
4790 | PL_expect = XOPERATOR; | |
4791 | else if (strchr("$@\"'`q", *s)) | |
4792 | PL_expect = XTERM; /* e.g. print $fh "foo" */ | |
4793 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) | |
4794 | PL_expect = XTERM; /* e.g. print $fh &sub */ | |
4795 | else if (isIDFIRST_lazy_if(s,UTF)) { | |
4796 | char tmpbuf[sizeof PL_tokenbuf]; | |
4797 | int t2; | |
4798 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
5458a98a | 4799 | if ((t2 = keyword(tmpbuf, len, 0))) { |
90771dc0 NC |
4800 | /* binary operators exclude handle interpretations */ |
4801 | switch (t2) { | |
4802 | case -KEY_x: | |
4803 | case -KEY_eq: | |
4804 | case -KEY_ne: | |
4805 | case -KEY_gt: | |
4806 | case -KEY_lt: | |
4807 | case -KEY_ge: | |
4808 | case -KEY_le: | |
4809 | case -KEY_cmp: | |
4810 | break; | |
4811 | default: | |
4812 | PL_expect = XTERM; /* e.g. print $fh length() */ | |
4813 | break; | |
4814 | } | |
4815 | } | |
4816 | else { | |
4817 | PL_expect = XTERM; /* e.g. print $fh subr() */ | |
84902520 TB |
4818 | } |
4819 | } | |
90771dc0 NC |
4820 | else if (isDIGIT(*s)) |
4821 | PL_expect = XTERM; /* e.g. print $fh 3 */ | |
4822 | else if (*s == '.' && isDIGIT(s[1])) | |
4823 | PL_expect = XTERM; /* e.g. print $fh .3 */ | |
4824 | else if ((*s == '?' || *s == '-' || *s == '+') | |
4825 | && !isSPACE(s[1]) && s[1] != '=') | |
4826 | PL_expect = XTERM; /* e.g. print $fh -1 */ | |
4827 | else if (*s == '/' && !isSPACE(s[1]) && s[1] != '=' | |
4828 | && s[1] != '/') | |
4829 | PL_expect = XTERM; /* e.g. print $fh /.../ | |
4830 | XXX except DORDOR operator | |
4831 | */ | |
4832 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) | |
4833 | && s[2] != '=') | |
4834 | PL_expect = XTERM; /* print $fh <<"EOF" */ | |
93a17b20 | 4835 | } |
bbce6d69 | 4836 | } |
3280af22 | 4837 | PL_pending_ident = '$'; |
79072805 | 4838 | TOKEN('$'); |
378cc40b LW |
4839 | |
4840 | case '@': | |
3280af22 | 4841 | if (PL_expect == XOPERATOR) |
bbce6d69 | 4842 | no_op("Array", s); |
3280af22 NIS |
4843 | PL_tokenbuf[0] = '@'; |
4844 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
4845 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 4846 | PREREF('@'); |
4847 | } | |
3280af22 | 4848 | if (PL_lex_state == LEX_NORMAL) |
29595ff2 | 4849 | s = SKIPSPACE1(s); |
3280af22 | 4850 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 4851 | if (*s == '{') |
3280af22 | 4852 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
4853 | |
4854 | /* Warn about @ where they meant $. */ | |
041457d9 DM |
4855 | if (*s == '[' || *s == '{') { |
4856 | if (ckWARN(WARN_SYNTAX)) { | |
f54cb97a | 4857 | const char *t = s + 1; |
7e2040f0 | 4858 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
4859 | t++; |
4860 | if (*t == '}' || *t == ']') { | |
4861 | t++; | |
29595ff2 | 4862 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
9014280d | 4863 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 4864 | "Scalar value %.*s better written as $%.*s", |
36c7798d DM |
4865 | (int)(t-PL_bufptr), PL_bufptr, |
4866 | (int)(t-PL_bufptr-1), PL_bufptr+1); | |
a0d0e21e | 4867 | } |
93a17b20 LW |
4868 | } |
4869 | } | |
463ee0b2 | 4870 | } |
3280af22 | 4871 | PL_pending_ident = '@'; |
79072805 | 4872 | TERM('@'); |
378cc40b | 4873 | |
c963b151 | 4874 | case '/': /* may be division, defined-or, or pattern */ |
6f33ba73 RGS |
4875 | if (PL_expect == XTERMORDORDOR && s[1] == '/') { |
4876 | s += 2; | |
4877 | AOPERATOR(DORDOR); | |
4878 | } | |
c963b151 BD |
4879 | case '?': /* may either be conditional or pattern */ |
4880 | if(PL_expect == XOPERATOR) { | |
90771dc0 | 4881 | char tmp = *s++; |
c963b151 BD |
4882 | if(tmp == '?') { |
4883 | OPERATOR('?'); | |
4884 | } | |
4885 | else { | |
4886 | tmp = *s++; | |
4887 | if(tmp == '/') { | |
4888 | /* A // operator. */ | |
4889 | AOPERATOR(DORDOR); | |
4890 | } | |
4891 | else { | |
4892 | s--; | |
4893 | Mop(OP_DIVIDE); | |
4894 | } | |
4895 | } | |
4896 | } | |
4897 | else { | |
4898 | /* Disable warning on "study /blah/" */ | |
4899 | if (PL_oldoldbufptr == PL_last_uni | |
4900 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
4901 | || memNE(PL_last_uni, "study", 5) | |
4902 | || isALNUM_lazy_if(PL_last_uni+5,UTF) | |
4903 | )) | |
4904 | check_uni(); | |
4905 | s = scan_pat(s,OP_MATCH); | |
4906 | TERM(sublex_start()); | |
4907 | } | |
378cc40b LW |
4908 | |
4909 | case '.': | |
51882d45 GS |
4910 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
4911 | #ifdef PERL_STRICT_CR | |
4912 | && s[1] == '\n' | |
4913 | #else | |
4914 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
4915 | #endif | |
4916 | && (s == PL_linestart || s[-1] == '\n') ) | |
4917 | { | |
3280af22 NIS |
4918 | PL_lex_formbrack = 0; |
4919 | PL_expect = XSTATE; | |
79072805 LW |
4920 | goto rightbracket; |
4921 | } | |
3280af22 | 4922 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
90771dc0 | 4923 | char tmp = *s++; |
a687059c LW |
4924 | if (*s == tmp) { |
4925 | s++; | |
2f3197b3 LW |
4926 | if (*s == tmp) { |
4927 | s++; | |
79072805 | 4928 | yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
4929 | } |
4930 | else | |
79072805 | 4931 | yylval.ival = 0; |
378cc40b | 4932 | OPERATOR(DOTDOT); |
a687059c | 4933 | } |
3280af22 | 4934 | if (PL_expect != XOPERATOR) |
2f3197b3 | 4935 | check_uni(); |
79072805 | 4936 | Aop(OP_CONCAT); |
378cc40b LW |
4937 | } |
4938 | /* FALL THROUGH */ | |
4939 | case '0': case '1': case '2': case '3': case '4': | |
4940 | case '5': case '6': case '7': case '8': case '9': | |
b73d6f50 | 4941 | s = scan_num(s, &yylval); |
931e0695 | 4942 | DEBUG_T( { printbuf("### Saw number in %s\n", s); } ); |
3280af22 | 4943 | if (PL_expect == XOPERATOR) |
8990e307 | 4944 | no_op("Number",s); |
79072805 LW |
4945 | TERM(THING); |
4946 | ||
4947 | case '\'': | |
5db06880 | 4948 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 4949 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
4950 | if (PL_expect == XOPERATOR) { |
4951 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4952 | PL_expect = XTERM; | |
c445ea15 | 4953 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4954 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4955 | } |
463ee0b2 | 4956 | else |
8990e307 | 4957 | no_op("String",s); |
463ee0b2 | 4958 | } |
79072805 | 4959 | if (!s) |
d4c19fe8 | 4960 | missingterm(NULL); |
79072805 LW |
4961 | yylval.ival = OP_CONST; |
4962 | TERM(sublex_start()); | |
4963 | ||
4964 | case '"': | |
5db06880 | 4965 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 4966 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
4967 | if (PL_expect == XOPERATOR) { |
4968 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4969 | PL_expect = XTERM; | |
c445ea15 | 4970 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4971 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4972 | } |
463ee0b2 | 4973 | else |
8990e307 | 4974 | no_op("String",s); |
463ee0b2 | 4975 | } |
79072805 | 4976 | if (!s) |
d4c19fe8 | 4977 | missingterm(NULL); |
4633a7c4 | 4978 | yylval.ival = OP_CONST; |
cfd0369c NC |
4979 | /* FIXME. I think that this can be const if char *d is replaced by |
4980 | more localised variables. */ | |
3280af22 | 4981 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
63cd0674 | 4982 | if (*d == '$' || *d == '@' || *d == '\\' || !UTF8_IS_INVARIANT((U8)*d)) { |
4633a7c4 LW |
4983 | yylval.ival = OP_STRINGIFY; |
4984 | break; | |
4985 | } | |
4986 | } | |
79072805 LW |
4987 | TERM(sublex_start()); |
4988 | ||
4989 | case '`': | |
5db06880 | 4990 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 4991 | DEBUG_T( { printbuf("### Saw backtick string before %s\n", s); } ); |
3280af22 | 4992 | if (PL_expect == XOPERATOR) |
8990e307 | 4993 | no_op("Backticks",s); |
79072805 | 4994 | if (!s) |
d4c19fe8 | 4995 | missingterm(NULL); |
9b201d7d | 4996 | readpipe_override(); |
79072805 LW |
4997 | TERM(sublex_start()); |
4998 | ||
4999 | case '\\': | |
5000 | s++; | |
041457d9 | 5001 | if (PL_lex_inwhat && isDIGIT(*s) && ckWARN(WARN_SYNTAX)) |
9014280d | 5002 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression", |
599cee73 | 5003 | *s, *s); |
3280af22 | 5004 | if (PL_expect == XOPERATOR) |
8990e307 | 5005 | no_op("Backslash",s); |
79072805 LW |
5006 | OPERATOR(REFGEN); |
5007 | ||
a7cb1f99 | 5008 | case 'v': |
e526c9e6 | 5009 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
f54cb97a | 5010 | char *start = s + 2; |
dd629d5b | 5011 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
5012 | start++; |
5013 | if (*start == '.' && isDIGIT(start[1])) { | |
b73d6f50 | 5014 | s = scan_num(s, &yylval); |
a7cb1f99 GS |
5015 | TERM(THING); |
5016 | } | |
e526c9e6 | 5017 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
6f33ba73 RGS |
5018 | else if (!isALPHA(*start) && (PL_expect == XTERM |
5019 | || PL_expect == XREF || PL_expect == XSTATE | |
5020 | || PL_expect == XTERMORDORDOR)) { | |
d4c19fe8 | 5021 | /* XXX Use gv_fetchpvn rather than stomping on a const string */ |
f54cb97a | 5022 | const char c = *start; |
e526c9e6 GS |
5023 | GV *gv; |
5024 | *start = '\0'; | |
f776e3cd | 5025 | gv = gv_fetchpv(s, 0, SVt_PVCV); |
e526c9e6 GS |
5026 | *start = c; |
5027 | if (!gv) { | |
b73d6f50 | 5028 | s = scan_num(s, &yylval); |
e526c9e6 GS |
5029 | TERM(THING); |
5030 | } | |
5031 | } | |
a7cb1f99 GS |
5032 | } |
5033 | goto keylookup; | |
79072805 | 5034 | case 'x': |
3280af22 | 5035 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
5036 | s++; |
5037 | Mop(OP_REPEAT); | |
2f3197b3 | 5038 | } |
79072805 LW |
5039 | goto keylookup; |
5040 | ||
378cc40b | 5041 | case '_': |
79072805 LW |
5042 | case 'a': case 'A': |
5043 | case 'b': case 'B': | |
5044 | case 'c': case 'C': | |
5045 | case 'd': case 'D': | |
5046 | case 'e': case 'E': | |
5047 | case 'f': case 'F': | |
5048 | case 'g': case 'G': | |
5049 | case 'h': case 'H': | |
5050 | case 'i': case 'I': | |
5051 | case 'j': case 'J': | |
5052 | case 'k': case 'K': | |
5053 | case 'l': case 'L': | |
5054 | case 'm': case 'M': | |
5055 | case 'n': case 'N': | |
5056 | case 'o': case 'O': | |
5057 | case 'p': case 'P': | |
5058 | case 'q': case 'Q': | |
5059 | case 'r': case 'R': | |
5060 | case 's': case 'S': | |
5061 | case 't': case 'T': | |
5062 | case 'u': case 'U': | |
a7cb1f99 | 5063 | case 'V': |
79072805 LW |
5064 | case 'w': case 'W': |
5065 | case 'X': | |
5066 | case 'y': case 'Y': | |
5067 | case 'z': case 'Z': | |
5068 | ||
49dc05e3 | 5069 | keylookup: { |
90771dc0 | 5070 | I32 tmp; |
10edeb5d JH |
5071 | |
5072 | orig_keyword = 0; | |
5073 | gv = NULL; | |
5074 | gvp = NULL; | |
49dc05e3 | 5075 | |
3280af22 NIS |
5076 | PL_bufptr = s; |
5077 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 5078 | |
5079 | /* Some keywords can be followed by any delimiter, including ':' */ | |
155aba94 GS |
5080 | tmp = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
5081 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || | |
5082 | (PL_tokenbuf[0] == 'q' && | |
5083 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 5084 | |
5085 | /* x::* is just a word, unless x is "CORE" */ | |
3280af22 | 5086 | if (!tmp && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
5087 | goto just_a_word; |
5088 | ||
3643fb5f | 5089 | d = s; |
3280af22 | 5090 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
5091 | d++; /* no comments skipped here, or s### is misparsed */ |
5092 | ||
5093 | /* Is this a label? */ | |
3280af22 NIS |
5094 | if (!tmp && PL_expect == XSTATE |
5095 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
8ebc5c01 | 5096 | s = d + 1; |
3280af22 | 5097 | yylval.pval = savepv(PL_tokenbuf); |
8ebc5c01 | 5098 | CLINE; |
5099 | TOKEN(LABEL); | |
3643fb5f CS |
5100 | } |
5101 | ||
5102 | /* Check for keywords */ | |
5458a98a | 5103 | tmp = keyword(PL_tokenbuf, len, 0); |
748a9306 LW |
5104 | |
5105 | /* Is this a word before a => operator? */ | |
1c3923b3 | 5106 | if (*d == '=' && d[1] == '>') { |
748a9306 | 5107 | CLINE; |
d0a148a6 NC |
5108 | yylval.opval |
5109 | = (OP*)newSVOP(OP_CONST, 0, | |
5110 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
748a9306 LW |
5111 | yylval.opval->op_private = OPpCONST_BARE; |
5112 | TERM(WORD); | |
5113 | } | |
5114 | ||
a0d0e21e | 5115 | if (tmp < 0) { /* second-class keyword? */ |
cbbf8932 AL |
5116 | GV *ogv = NULL; /* override (winner) */ |
5117 | GV *hgv = NULL; /* hidden (loser) */ | |
3280af22 | 5118 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 5119 | CV *cv; |
90e5519e | 5120 | if ((gv = gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVCV)) && |
56f7f34b CS |
5121 | (cv = GvCVu(gv))) |
5122 | { | |
5123 | if (GvIMPORTED_CV(gv)) | |
5124 | ogv = gv; | |
5125 | else if (! CvMETHOD(cv)) | |
5126 | hgv = gv; | |
5127 | } | |
5128 | if (!ogv && | |
3280af22 NIS |
5129 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
5130 | (gv = *gvp) != (GV*)&PL_sv_undef && | |
56f7f34b CS |
5131 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
5132 | { | |
5133 | ogv = gv; | |
5134 | } | |
5135 | } | |
5136 | if (ogv) { | |
30fe34ed | 5137 | orig_keyword = tmp; |
56f7f34b | 5138 | tmp = 0; /* overridden by import or by GLOBAL */ |
6e7b2336 GS |
5139 | } |
5140 | else if (gv && !gvp | |
5141 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
d0456cad | 5142 | && GvCVu(gv) |
017a3ce5 | 5143 | && !hv_fetchs(GvHVn(PL_incgv), "Thread.pm", FALSE)) |
6e7b2336 GS |
5144 | { |
5145 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 5146 | } |
56f7f34b CS |
5147 | else { /* no override */ |
5148 | tmp = -tmp; | |
ac206dc8 | 5149 | if (tmp == KEY_dump && ckWARN(WARN_MISC)) { |
9014280d | 5150 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
ac206dc8 RGS |
5151 | "dump() better written as CORE::dump()"); |
5152 | } | |
a0714e2c | 5153 | gv = NULL; |
56f7f34b | 5154 | gvp = 0; |
041457d9 DM |
5155 | if (hgv && tmp != KEY_x && tmp != KEY_CORE |
5156 | && ckWARN(WARN_AMBIGUOUS)) /* never ambiguous */ | |
9014280d | 5157 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 5158 | "Ambiguous call resolved as CORE::%s(), %s", |
2f3ca594 | 5159 | GvENAME(hgv), "qualify as such or use &"); |
49dc05e3 | 5160 | } |
a0d0e21e LW |
5161 | } |
5162 | ||
5163 | reserved_word: | |
5164 | switch (tmp) { | |
79072805 LW |
5165 | |
5166 | default: /* not a keyword */ | |
0bfa2a8a NC |
5167 | /* Trade off - by using this evil construction we can pull the |
5168 | variable gv into the block labelled keylookup. If not, then | |
5169 | we have to give it function scope so that the goto from the | |
5170 | earlier ':' case doesn't bypass the initialisation. */ | |
5171 | if (0) { | |
5172 | just_a_word_zero_gv: | |
5173 | gv = NULL; | |
5174 | gvp = NULL; | |
8bee0991 | 5175 | orig_keyword = 0; |
0bfa2a8a | 5176 | } |
93a17b20 | 5177 | just_a_word: { |
96e4d5b1 | 5178 | SV *sv; |
ce29ac45 | 5179 | int pkgname = 0; |
f54cb97a | 5180 | const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
5069cc75 | 5181 | CV *cv; |
5db06880 | 5182 | #ifdef PERL_MAD |
cd81e915 | 5183 | SV *nextPL_nextwhite = 0; |
5db06880 NC |
5184 | #endif |
5185 | ||
8990e307 LW |
5186 | |
5187 | /* Get the rest if it looks like a package qualifier */ | |
5188 | ||
155aba94 | 5189 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 5190 | STRLEN morelen; |
3280af22 | 5191 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
5192 | TRUE, &morelen); |
5193 | if (!morelen) | |
cea2e8a9 | 5194 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 5195 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 5196 | len += morelen; |
ce29ac45 | 5197 | pkgname = 1; |
a0d0e21e | 5198 | } |
8990e307 | 5199 | |
3280af22 NIS |
5200 | if (PL_expect == XOPERATOR) { |
5201 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 5202 | CopLINE_dec(PL_curcop); |
9014280d | 5203 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 5204 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
5205 | } |
5206 | else | |
54310121 | 5207 | no_op("Bareword",s); |
463ee0b2 | 5208 | } |
8990e307 | 5209 | |
c3e0f903 GS |
5210 | /* Look for a subroutine with this name in current package, |
5211 | unless name is "Foo::", in which case Foo is a bearword | |
5212 | (and a package name). */ | |
5213 | ||
5db06880 | 5214 | if (len > 2 && !PL_madskills && |
3280af22 | 5215 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 5216 | { |
f776e3cd | 5217 | if (ckWARN(WARN_BAREWORD) |
90e5519e | 5218 | && ! gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVHV)) |
9014280d | 5219 | Perl_warner(aTHX_ packWARN(WARN_BAREWORD), |
599cee73 | 5220 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 5221 | PL_tokenbuf); |
c3e0f903 | 5222 | len -= 2; |
3280af22 | 5223 | PL_tokenbuf[len] = '\0'; |
a0714e2c | 5224 | gv = NULL; |
c3e0f903 GS |
5225 | gvp = 0; |
5226 | } | |
5227 | else { | |
62d55b22 NC |
5228 | if (!gv) { |
5229 | /* Mustn't actually add anything to a symbol table. | |
5230 | But also don't want to "initialise" any placeholder | |
5231 | constants that might already be there into full | |
5232 | blown PVGVs with attached PVCV. */ | |
90e5519e NC |
5233 | gv = gv_fetchpvn_flags(PL_tokenbuf, len, |
5234 | GV_NOADD_NOINIT, SVt_PVCV); | |
62d55b22 | 5235 | } |
b3d904f3 | 5236 | len = 0; |
c3e0f903 GS |
5237 | } |
5238 | ||
5239 | /* if we saw a global override before, get the right name */ | |
8990e307 | 5240 | |
49dc05e3 | 5241 | if (gvp) { |
396482e1 | 5242 | sv = newSVpvs("CORE::GLOBAL::"); |
3280af22 | 5243 | sv_catpv(sv,PL_tokenbuf); |
49dc05e3 | 5244 | } |
8a7a129d NC |
5245 | else { |
5246 | /* If len is 0, newSVpv does strlen(), which is correct. | |
5247 | If len is non-zero, then it will be the true length, | |
5248 | and so the scalar will be created correctly. */ | |
5249 | sv = newSVpv(PL_tokenbuf,len); | |
5250 | } | |
5db06880 | 5251 | #ifdef PERL_MAD |
cd81e915 NC |
5252 | if (PL_madskills && !PL_thistoken) { |
5253 | char *start = SvPVX(PL_linestr) + PL_realtokenstart; | |
5254 | PL_thistoken = newSVpv(start,s - start); | |
5255 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
5256 | } |
5257 | #endif | |
8990e307 | 5258 | |
a0d0e21e LW |
5259 | /* Presume this is going to be a bareword of some sort. */ |
5260 | ||
5261 | CLINE; | |
49dc05e3 | 5262 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
a0d0e21e | 5263 | yylval.opval->op_private = OPpCONST_BARE; |
8f8cf39c JH |
5264 | /* UTF-8 package name? */ |
5265 | if (UTF && !IN_BYTES && | |
95a20fc0 | 5266 | is_utf8_string((U8*)SvPVX_const(sv), SvCUR(sv))) |
8f8cf39c | 5267 | SvUTF8_on(sv); |
a0d0e21e | 5268 | |
c3e0f903 GS |
5269 | /* And if "Foo::", then that's what it certainly is. */ |
5270 | ||
5271 | if (len) | |
5272 | goto safe_bareword; | |
5273 | ||
5069cc75 NC |
5274 | /* Do the explicit type check so that we don't need to force |
5275 | the initialisation of the symbol table to have a real GV. | |
5276 | Beware - gv may not really be a PVGV, cv may not really be | |
5277 | a PVCV, (because of the space optimisations that gv_init | |
5278 | understands) But they're true if for this symbol there is | |
5279 | respectively a typeglob and a subroutine. | |
5280 | */ | |
5281 | cv = gv ? ((SvTYPE(gv) == SVt_PVGV) | |
5282 | /* Real typeglob, so get the real subroutine: */ | |
5283 | ? GvCVu(gv) | |
5284 | /* A proxy for a subroutine in this package? */ | |
5285 | : SvOK(gv) ? (CV *) gv : NULL) | |
5286 | : NULL; | |
5287 | ||
8990e307 LW |
5288 | /* See if it's the indirect object for a list operator. */ |
5289 | ||
3280af22 NIS |
5290 | if (PL_oldoldbufptr && |
5291 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
5292 | (PL_oldoldbufptr == PL_last_lop |
5293 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 5294 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
5295 | (PL_expect == XREF || |
5296 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 5297 | { |
748a9306 LW |
5298 | bool immediate_paren = *s == '('; |
5299 | ||
a0d0e21e | 5300 | /* (Now we can afford to cross potential line boundary.) */ |
cd81e915 | 5301 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5db06880 | 5302 | #ifdef PERL_MAD |
cd81e915 | 5303 | PL_nextwhite = nextPL_nextwhite; /* assume no & deception */ |
5db06880 | 5304 | #endif |
a0d0e21e LW |
5305 | |
5306 | /* Two barewords in a row may indicate method call. */ | |
5307 | ||
62d55b22 NC |
5308 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && |
5309 | (tmp = intuit_method(s, gv, cv))) | |
bbf60fe6 | 5310 | return REPORT(tmp); |
a0d0e21e LW |
5311 | |
5312 | /* If not a declared subroutine, it's an indirect object. */ | |
5313 | /* (But it's an indir obj regardless for sort.) */ | |
7294df96 | 5314 | /* Also, if "_" follows a filetest operator, it's a bareword */ |
a0d0e21e | 5315 | |
7294df96 RGS |
5316 | if ( |
5317 | ( !immediate_paren && (PL_last_lop_op == OP_SORT || | |
5069cc75 | 5318 | ((!gv || !cv) && |
a9ef352a | 5319 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 5320 | PL_last_lop_op != OP_GREPSTART)))) |
7294df96 RGS |
5321 | || (PL_tokenbuf[0] == '_' && PL_tokenbuf[1] == '\0' |
5322 | && ((PL_opargs[PL_last_lop_op] & OA_CLASS_MASK) == OA_FILESTATOP)) | |
5323 | ) | |
a9ef352a | 5324 | { |
3280af22 | 5325 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 5326 | goto bareword; |
93a17b20 LW |
5327 | } |
5328 | } | |
8990e307 | 5329 | |
3280af22 | 5330 | PL_expect = XOPERATOR; |
5db06880 NC |
5331 | #ifdef PERL_MAD |
5332 | if (isSPACE(*s)) | |
cd81e915 NC |
5333 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5334 | PL_nextwhite = nextPL_nextwhite; | |
5db06880 | 5335 | #else |
8990e307 | 5336 | s = skipspace(s); |
5db06880 | 5337 | #endif |
1c3923b3 GS |
5338 | |
5339 | /* Is this a word before a => operator? */ | |
ce29ac45 | 5340 | if (*s == '=' && s[1] == '>' && !pkgname) { |
1c3923b3 GS |
5341 | CLINE; |
5342 | sv_setpv(((SVOP*)yylval.opval)->op_sv, PL_tokenbuf); | |
0064a8a9 | 5343 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
7948272d | 5344 | SvUTF8_on(((SVOP*)yylval.opval)->op_sv); |
1c3923b3 GS |
5345 | TERM(WORD); |
5346 | } | |
5347 | ||
5348 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 5349 | if (*s == '(') { |
79072805 | 5350 | CLINE; |
5069cc75 | 5351 | if (cv) { |
c35e046a AL |
5352 | d = s + 1; |
5353 | while (SPACE_OR_TAB(*d)) | |
5354 | d++; | |
62d55b22 | 5355 | if (*d == ')' && (sv = gv_const_sv(gv))) { |
96e4d5b1 | 5356 | s = d + 1; |
5db06880 NC |
5357 | #ifdef PERL_MAD |
5358 | if (PL_madskills) { | |
cd81e915 NC |
5359 | char *par = SvPVX(PL_linestr) + PL_realtokenstart; |
5360 | sv_catpvn(PL_thistoken, par, s - par); | |
5361 | if (PL_nextwhite) { | |
5362 | sv_free(PL_nextwhite); | |
5363 | PL_nextwhite = 0; | |
5db06880 NC |
5364 | } |
5365 | } | |
5366 | #endif | |
96e4d5b1 | 5367 | goto its_constant; |
5368 | } | |
5369 | } | |
5db06880 NC |
5370 | #ifdef PERL_MAD |
5371 | if (PL_madskills) { | |
cd81e915 NC |
5372 | PL_nextwhite = PL_thiswhite; |
5373 | PL_thiswhite = 0; | |
5db06880 | 5374 | } |
cd81e915 | 5375 | start_force(PL_curforce); |
5db06880 | 5376 | #endif |
9ded7720 | 5377 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 5378 | PL_expect = XOPERATOR; |
5db06880 NC |
5379 | #ifdef PERL_MAD |
5380 | if (PL_madskills) { | |
cd81e915 NC |
5381 | PL_nextwhite = nextPL_nextwhite; |
5382 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5383 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5384 | } |
5385 | #endif | |
93a17b20 | 5386 | force_next(WORD); |
c07a80fd | 5387 | yylval.ival = 0; |
463ee0b2 | 5388 | TOKEN('&'); |
79072805 | 5389 | } |
93a17b20 | 5390 | |
a0d0e21e | 5391 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 5392 | |
62d55b22 | 5393 | if ((*s == '$' || *s == '{') && (!gv || !cv)) { |
3280af22 NIS |
5394 | PL_last_lop = PL_oldbufptr; |
5395 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 5396 | PREBLOCK(METHOD); |
463ee0b2 LW |
5397 | } |
5398 | ||
8990e307 LW |
5399 | /* If followed by a bareword, see if it looks like indir obj. */ |
5400 | ||
30fe34ed RGS |
5401 | if (!orig_keyword |
5402 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
62d55b22 | 5403 | && (tmp = intuit_method(s, gv, cv))) |
bbf60fe6 | 5404 | return REPORT(tmp); |
93a17b20 | 5405 | |
8990e307 LW |
5406 | /* Not a method, so call it a subroutine (if defined) */ |
5407 | ||
5069cc75 | 5408 | if (cv) { |
0453d815 | 5409 | if (lastchar == '-' && ckWARN_d(WARN_AMBIGUOUS)) |
9014280d | 5410 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5411 | "Ambiguous use of -%s resolved as -&%s()", |
3280af22 | 5412 | PL_tokenbuf, PL_tokenbuf); |
89bfa8cd | 5413 | /* Check for a constant sub */ |
62d55b22 | 5414 | if ((sv = gv_const_sv(gv))) { |
96e4d5b1 | 5415 | its_constant: |
5416 | SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv); | |
b37c2d43 | 5417 | ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc_simple(sv); |
96e4d5b1 | 5418 | yylval.opval->op_private = 0; |
5419 | TOKEN(WORD); | |
89bfa8cd | 5420 | } |
5421 | ||
a5f75d66 | 5422 | /* Resolve to GV now. */ |
62d55b22 | 5423 | if (SvTYPE(gv) != SVt_PVGV) { |
b3d904f3 | 5424 | gv = gv_fetchpv(PL_tokenbuf, 0, SVt_PVCV); |
62d55b22 NC |
5425 | assert (SvTYPE(gv) == SVt_PVGV); |
5426 | /* cv must have been some sort of placeholder, so | |
5427 | now needs replacing with a real code reference. */ | |
5428 | cv = GvCV(gv); | |
5429 | } | |
5430 | ||
a5f75d66 AD |
5431 | op_free(yylval.opval); |
5432 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
9675f7ac | 5433 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
7a52d87a | 5434 | PL_last_lop = PL_oldbufptr; |
bf848113 | 5435 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 | 5436 | /* Is there a prototype? */ |
5db06880 NC |
5437 | if ( |
5438 | #ifdef PERL_MAD | |
5439 | cv && | |
5440 | #endif | |
d9f2850e RGS |
5441 | SvPOK(cv)) |
5442 | { | |
5f66b61c AL |
5443 | STRLEN protolen; |
5444 | const char *proto = SvPV_const((SV*)cv, protolen); | |
5445 | if (!protolen) | |
4633a7c4 | 5446 | TERM(FUNC0SUB); |
8c28b960 | 5447 | if ((*proto == '$' || *proto == '_') && proto[1] == '\0') |
4633a7c4 | 5448 | OPERATOR(UNIOPSUB); |
0f5d0394 AE |
5449 | while (*proto == ';') |
5450 | proto++; | |
7a52d87a | 5451 | if (*proto == '&' && *s == '{') { |
10edeb5d JH |
5452 | sv_setpv(PL_subname, |
5453 | (const char *) | |
5454 | (PL_curstash ? | |
5455 | "__ANON__" : "__ANON__::__ANON__")); | |
4633a7c4 LW |
5456 | PREBLOCK(LSTOPSUB); |
5457 | } | |
a9ef352a | 5458 | } |
5db06880 NC |
5459 | #ifdef PERL_MAD |
5460 | { | |
5461 | if (PL_madskills) { | |
cd81e915 NC |
5462 | PL_nextwhite = PL_thiswhite; |
5463 | PL_thiswhite = 0; | |
5db06880 | 5464 | } |
cd81e915 | 5465 | start_force(PL_curforce); |
5db06880 NC |
5466 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
5467 | PL_expect = XTERM; | |
5468 | if (PL_madskills) { | |
cd81e915 NC |
5469 | PL_nextwhite = nextPL_nextwhite; |
5470 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5471 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5472 | } |
5473 | force_next(WORD); | |
5474 | TOKEN(NOAMP); | |
5475 | } | |
5476 | } | |
5477 | ||
5478 | /* Guess harder when madskills require "best effort". */ | |
5479 | if (PL_madskills && (!gv || !GvCVu(gv))) { | |
5480 | int probable_sub = 0; | |
5481 | if (strchr("\"'`$@%0123456789!*+{[<", *s)) | |
5482 | probable_sub = 1; | |
5483 | else if (isALPHA(*s)) { | |
5484 | char tmpbuf[1024]; | |
5485 | STRLEN tmplen; | |
5486 | d = s; | |
5487 | d = scan_word(d, tmpbuf, sizeof tmpbuf, TRUE, &tmplen); | |
5458a98a | 5488 | if (!keyword(tmpbuf, tmplen, 0)) |
5db06880 NC |
5489 | probable_sub = 1; |
5490 | else { | |
5491 | while (d < PL_bufend && isSPACE(*d)) | |
5492 | d++; | |
5493 | if (*d == '=' && d[1] == '>') | |
5494 | probable_sub = 1; | |
5495 | } | |
5496 | } | |
5497 | if (probable_sub) { | |
5498 | gv = gv_fetchpv(PL_tokenbuf, TRUE, SVt_PVCV); | |
5499 | op_free(yylval.opval); | |
5500 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
5501 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; | |
5502 | PL_last_lop = PL_oldbufptr; | |
5503 | PL_last_lop_op = OP_ENTERSUB; | |
cd81e915 NC |
5504 | PL_nextwhite = PL_thiswhite; |
5505 | PL_thiswhite = 0; | |
5506 | start_force(PL_curforce); | |
5db06880 NC |
5507 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
5508 | PL_expect = XTERM; | |
cd81e915 NC |
5509 | PL_nextwhite = nextPL_nextwhite; |
5510 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5511 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5512 | force_next(WORD); |
5513 | TOKEN(NOAMP); | |
5514 | } | |
5515 | #else | |
9ded7720 | 5516 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 5517 | PL_expect = XTERM; |
8990e307 LW |
5518 | force_next(WORD); |
5519 | TOKEN(NOAMP); | |
5db06880 | 5520 | #endif |
8990e307 | 5521 | } |
748a9306 | 5522 | |
8990e307 LW |
5523 | /* Call it a bare word */ |
5524 | ||
5603f27d GS |
5525 | if (PL_hints & HINT_STRICT_SUBS) |
5526 | yylval.opval->op_private |= OPpCONST_STRICT; | |
5527 | else { | |
5528 | bareword: | |
041457d9 DM |
5529 | if (lastchar != '-') { |
5530 | if (ckWARN(WARN_RESERVED)) { | |
c35e046a AL |
5531 | d = PL_tokenbuf; |
5532 | while (isLOWER(*d)) | |
5533 | d++; | |
238ae712 | 5534 | if (!*d && !gv_stashpv(PL_tokenbuf,FALSE)) |
9014280d | 5535 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
5536 | PL_tokenbuf); |
5537 | } | |
748a9306 LW |
5538 | } |
5539 | } | |
c3e0f903 GS |
5540 | |
5541 | safe_bareword: | |
3792a11b NC |
5542 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&') |
5543 | && ckWARN_d(WARN_AMBIGUOUS)) { | |
9014280d | 5544 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5545 | "Operator or semicolon missing before %c%s", |
3280af22 | 5546 | lastchar, PL_tokenbuf); |
9014280d | 5547 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5548 | "Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
5549 | lastchar, lastchar); |
5550 | } | |
93a17b20 | 5551 | TOKEN(WORD); |
79072805 | 5552 | } |
79072805 | 5553 | |
68dc0745 | 5554 | case KEY___FILE__: |
46fc3d4c | 5555 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 5556 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 5557 | TERM(THING); |
5558 | ||
79072805 | 5559 | case KEY___LINE__: |
cf2093f6 | 5560 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 5561 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 5562 | TERM(THING); |
68dc0745 | 5563 | |
5564 | case KEY___PACKAGE__: | |
5565 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, | |
3280af22 | 5566 | (PL_curstash |
5aaec2b4 | 5567 | ? newSVhek(HvNAME_HEK(PL_curstash)) |
3280af22 | 5568 | : &PL_sv_undef)); |
79072805 | 5569 | TERM(THING); |
79072805 | 5570 | |
e50aee73 | 5571 | case KEY___DATA__: |
79072805 LW |
5572 | case KEY___END__: { |
5573 | GV *gv; | |
3280af22 | 5574 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
bfed75c6 | 5575 | const char *pname = "main"; |
3280af22 | 5576 | if (PL_tokenbuf[2] == 'D') |
bfcb3514 | 5577 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
f776e3cd NC |
5578 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD, |
5579 | SVt_PVIO); | |
a5f75d66 | 5580 | GvMULTI_on(gv); |
79072805 | 5581 | if (!GvIO(gv)) |
a0d0e21e | 5582 | GvIOp(gv) = newIO(); |
3280af22 | 5583 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
5584 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
5585 | { | |
f54cb97a | 5586 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
5587 | fcntl(fd,F_SETFD,fd >= 3); |
5588 | } | |
79072805 | 5589 | #endif |
fd049845 | 5590 | /* Mark this internal pseudo-handle as clean */ |
5591 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
3280af22 | 5592 | if (PL_preprocess) |
50952442 | 5593 | IoTYPE(GvIOp(gv)) = IoTYPE_PIPE; |
3280af22 | 5594 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 5595 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 5596 | else |
50952442 | 5597 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
5598 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
5599 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 5600 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 5601 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
5602 | if (PL_bufend-PL_bufptr > 2 |
5603 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
5604 | { |
5605 | Off_t loc = 0; | |
50952442 | 5606 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
5607 | loc = PerlIO_tell(PL_rsfp); |
5608 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
5609 | } | |
2986a63f JH |
5610 | #ifdef NETWARE |
5611 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
5612 | #else | |
c39cd008 | 5613 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 5614 | #endif /* NETWARE */ |
1143fce0 JH |
5615 | #ifdef PERLIO_IS_STDIO /* really? */ |
5616 | # if defined(__BORLANDC__) | |
cb359b41 JH |
5617 | /* XXX see note in do_binmode() */ |
5618 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
5619 | # endif |
5620 | #endif | |
c39cd008 GS |
5621 | if (loc > 0) |
5622 | PerlIO_seek(PL_rsfp, loc, 0); | |
5623 | } | |
5624 | } | |
5625 | #endif | |
7948272d | 5626 | #ifdef PERLIO_LAYERS |
52d2e0f4 JH |
5627 | if (!IN_BYTES) { |
5628 | if (UTF) | |
5629 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
5630 | else if (PL_encoding) { | |
5631 | SV *name; | |
5632 | dSP; | |
5633 | ENTER; | |
5634 | SAVETMPS; | |
5635 | PUSHMARK(sp); | |
5636 | EXTEND(SP, 1); | |
5637 | XPUSHs(PL_encoding); | |
5638 | PUTBACK; | |
5639 | call_method("name", G_SCALAR); | |
5640 | SPAGAIN; | |
5641 | name = POPs; | |
5642 | PUTBACK; | |
bfed75c6 | 5643 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
52d2e0f4 | 5644 | Perl_form(aTHX_ ":encoding(%"SVf")", |
95b63a38 | 5645 | (void*)name)); |
52d2e0f4 JH |
5646 | FREETMPS; |
5647 | LEAVE; | |
5648 | } | |
5649 | } | |
7948272d | 5650 | #endif |
5db06880 NC |
5651 | #ifdef PERL_MAD |
5652 | if (PL_madskills) { | |
cd81e915 NC |
5653 | if (PL_realtokenstart >= 0) { |
5654 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; | |
5655 | if (!PL_endwhite) | |
6b29d1f5 | 5656 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
5657 | sv_catsv(PL_endwhite, PL_thiswhite); |
5658 | PL_thiswhite = 0; | |
5659 | sv_catpvn(PL_endwhite, tstart, PL_bufend - tstart); | |
5660 | PL_realtokenstart = -1; | |
5db06880 | 5661 | } |
cd81e915 NC |
5662 | while ((s = filter_gets(PL_endwhite, PL_rsfp, |
5663 | SvCUR(PL_endwhite))) != Nullch) ; | |
5db06880 NC |
5664 | } |
5665 | #endif | |
4608196e | 5666 | PL_rsfp = NULL; |
79072805 LW |
5667 | } |
5668 | goto fake_eof; | |
e929a76b | 5669 | } |
de3bb511 | 5670 | |
8990e307 | 5671 | case KEY_AUTOLOAD: |
ed6116ce | 5672 | case KEY_DESTROY: |
79072805 | 5673 | case KEY_BEGIN: |
3c10abe3 | 5674 | case KEY_UNITCHECK: |
7d30b5c4 | 5675 | case KEY_CHECK: |
7d07dbc2 | 5676 | case KEY_INIT: |
7d30b5c4 | 5677 | case KEY_END: |
3280af22 NIS |
5678 | if (PL_expect == XSTATE) { |
5679 | s = PL_bufptr; | |
93a17b20 | 5680 | goto really_sub; |
79072805 LW |
5681 | } |
5682 | goto just_a_word; | |
5683 | ||
a0d0e21e LW |
5684 | case KEY_CORE: |
5685 | if (*s == ':' && s[1] == ':') { | |
5686 | s += 2; | |
748a9306 | 5687 | d = s; |
3280af22 | 5688 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 5689 | if (!(tmp = keyword(PL_tokenbuf, len, 0))) |
6798c92b | 5690 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); |
a0d0e21e LW |
5691 | if (tmp < 0) |
5692 | tmp = -tmp; | |
850e8516 | 5693 | else if (tmp == KEY_require || tmp == KEY_do) |
a72a1c8b | 5694 | /* that's a way to remember we saw "CORE::" */ |
850e8516 | 5695 | orig_keyword = tmp; |
a0d0e21e LW |
5696 | goto reserved_word; |
5697 | } | |
5698 | goto just_a_word; | |
5699 | ||
463ee0b2 LW |
5700 | case KEY_abs: |
5701 | UNI(OP_ABS); | |
5702 | ||
79072805 LW |
5703 | case KEY_alarm: |
5704 | UNI(OP_ALARM); | |
5705 | ||
5706 | case KEY_accept: | |
a0d0e21e | 5707 | LOP(OP_ACCEPT,XTERM); |
79072805 | 5708 | |
463ee0b2 LW |
5709 | case KEY_and: |
5710 | OPERATOR(ANDOP); | |
5711 | ||
79072805 | 5712 | case KEY_atan2: |
a0d0e21e | 5713 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 5714 | |
79072805 | 5715 | case KEY_bind: |
a0d0e21e | 5716 | LOP(OP_BIND,XTERM); |
79072805 LW |
5717 | |
5718 | case KEY_binmode: | |
1c1fc3ea | 5719 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
5720 | |
5721 | case KEY_bless: | |
a0d0e21e | 5722 | LOP(OP_BLESS,XTERM); |
79072805 | 5723 | |
0d863452 RH |
5724 | case KEY_break: |
5725 | FUN0(OP_BREAK); | |
5726 | ||
79072805 LW |
5727 | case KEY_chop: |
5728 | UNI(OP_CHOP); | |
5729 | ||
5730 | case KEY_continue: | |
0d863452 RH |
5731 | /* When 'use switch' is in effect, continue has a dual |
5732 | life as a control operator. */ | |
5733 | { | |
ef89dcc3 | 5734 | if (!FEATURE_IS_ENABLED("switch")) |
0d863452 RH |
5735 | PREBLOCK(CONTINUE); |
5736 | else { | |
5737 | /* We have to disambiguate the two senses of | |
5738 | "continue". If the next token is a '{' then | |
5739 | treat it as the start of a continue block; | |
5740 | otherwise treat it as a control operator. | |
5741 | */ | |
5742 | s = skipspace(s); | |
5743 | if (*s == '{') | |
79072805 | 5744 | PREBLOCK(CONTINUE); |
0d863452 RH |
5745 | else |
5746 | FUN0(OP_CONTINUE); | |
5747 | } | |
5748 | } | |
79072805 LW |
5749 | |
5750 | case KEY_chdir: | |
fafc274c NC |
5751 | /* may use HOME */ |
5752 | (void)gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV); | |
79072805 LW |
5753 | UNI(OP_CHDIR); |
5754 | ||
5755 | case KEY_close: | |
5756 | UNI(OP_CLOSE); | |
5757 | ||
5758 | case KEY_closedir: | |
5759 | UNI(OP_CLOSEDIR); | |
5760 | ||
5761 | case KEY_cmp: | |
5762 | Eop(OP_SCMP); | |
5763 | ||
5764 | case KEY_caller: | |
5765 | UNI(OP_CALLER); | |
5766 | ||
5767 | case KEY_crypt: | |
5768 | #ifdef FCRYPT | |
f4c556ac GS |
5769 | if (!PL_cryptseen) { |
5770 | PL_cryptseen = TRUE; | |
de3bb511 | 5771 | init_des(); |
f4c556ac | 5772 | } |
a687059c | 5773 | #endif |
a0d0e21e | 5774 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
5775 | |
5776 | case KEY_chmod: | |
a0d0e21e | 5777 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
5778 | |
5779 | case KEY_chown: | |
a0d0e21e | 5780 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
5781 | |
5782 | case KEY_connect: | |
a0d0e21e | 5783 | LOP(OP_CONNECT,XTERM); |
79072805 | 5784 | |
463ee0b2 LW |
5785 | case KEY_chr: |
5786 | UNI(OP_CHR); | |
5787 | ||
79072805 LW |
5788 | case KEY_cos: |
5789 | UNI(OP_COS); | |
5790 | ||
5791 | case KEY_chroot: | |
5792 | UNI(OP_CHROOT); | |
5793 | ||
0d863452 RH |
5794 | case KEY_default: |
5795 | PREBLOCK(DEFAULT); | |
5796 | ||
79072805 | 5797 | case KEY_do: |
29595ff2 | 5798 | s = SKIPSPACE1(s); |
79072805 | 5799 | if (*s == '{') |
a0d0e21e | 5800 | PRETERMBLOCK(DO); |
79072805 | 5801 | if (*s != '\'') |
89c5585f | 5802 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
850e8516 RGS |
5803 | if (orig_keyword == KEY_do) { |
5804 | orig_keyword = 0; | |
5805 | yylval.ival = 1; | |
5806 | } | |
5807 | else | |
5808 | yylval.ival = 0; | |
378cc40b | 5809 | OPERATOR(DO); |
79072805 LW |
5810 | |
5811 | case KEY_die: | |
3280af22 | 5812 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 5813 | LOP(OP_DIE,XTERM); |
79072805 LW |
5814 | |
5815 | case KEY_defined: | |
5816 | UNI(OP_DEFINED); | |
5817 | ||
5818 | case KEY_delete: | |
a0d0e21e | 5819 | UNI(OP_DELETE); |
79072805 LW |
5820 | |
5821 | case KEY_dbmopen: | |
5c1737d1 | 5822 | gv_fetchpvs("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
a0d0e21e | 5823 | LOP(OP_DBMOPEN,XTERM); |
79072805 LW |
5824 | |
5825 | case KEY_dbmclose: | |
5826 | UNI(OP_DBMCLOSE); | |
5827 | ||
5828 | case KEY_dump: | |
a0d0e21e | 5829 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5830 | LOOPX(OP_DUMP); |
5831 | ||
5832 | case KEY_else: | |
5833 | PREBLOCK(ELSE); | |
5834 | ||
5835 | case KEY_elsif: | |
57843af0 | 5836 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5837 | OPERATOR(ELSIF); |
5838 | ||
5839 | case KEY_eq: | |
5840 | Eop(OP_SEQ); | |
5841 | ||
a0d0e21e LW |
5842 | case KEY_exists: |
5843 | UNI(OP_EXISTS); | |
4e553d73 | 5844 | |
79072805 | 5845 | case KEY_exit: |
5db06880 NC |
5846 | if (PL_madskills) |
5847 | UNI(OP_INT); | |
79072805 LW |
5848 | UNI(OP_EXIT); |
5849 | ||
5850 | case KEY_eval: | |
29595ff2 | 5851 | s = SKIPSPACE1(s); |
3280af22 | 5852 | PL_expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 5853 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
5854 | |
5855 | case KEY_eof: | |
5856 | UNI(OP_EOF); | |
5857 | ||
c963b151 BD |
5858 | case KEY_err: |
5859 | OPERATOR(DOROP); | |
5860 | ||
79072805 LW |
5861 | case KEY_exp: |
5862 | UNI(OP_EXP); | |
5863 | ||
5864 | case KEY_each: | |
5865 | UNI(OP_EACH); | |
5866 | ||
5867 | case KEY_exec: | |
5868 | set_csh(); | |
a0d0e21e | 5869 | LOP(OP_EXEC,XREF); |
79072805 LW |
5870 | |
5871 | case KEY_endhostent: | |
5872 | FUN0(OP_EHOSTENT); | |
5873 | ||
5874 | case KEY_endnetent: | |
5875 | FUN0(OP_ENETENT); | |
5876 | ||
5877 | case KEY_endservent: | |
5878 | FUN0(OP_ESERVENT); | |
5879 | ||
5880 | case KEY_endprotoent: | |
5881 | FUN0(OP_EPROTOENT); | |
5882 | ||
5883 | case KEY_endpwent: | |
5884 | FUN0(OP_EPWENT); | |
5885 | ||
5886 | case KEY_endgrent: | |
5887 | FUN0(OP_EGRENT); | |
5888 | ||
5889 | case KEY_for: | |
5890 | case KEY_foreach: | |
57843af0 | 5891 | yylval.ival = CopLINE(PL_curcop); |
29595ff2 | 5892 | s = SKIPSPACE1(s); |
7e2040f0 | 5893 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 5894 | char *p = s; |
5db06880 NC |
5895 | #ifdef PERL_MAD |
5896 | int soff = s - SvPVX(PL_linestr); /* for skipspace realloc */ | |
5897 | #endif | |
5898 | ||
3280af22 | 5899 | if ((PL_bufend - p) >= 3 && |
55497cff | 5900 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
5901 | p += 2; | |
77ca0c92 LW |
5902 | else if ((PL_bufend - p) >= 4 && |
5903 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
5904 | p += 3; | |
29595ff2 | 5905 | p = PEEKSPACE(p); |
7e2040f0 | 5906 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
5907 | p = scan_ident(p, PL_bufend, |
5908 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
29595ff2 | 5909 | p = PEEKSPACE(p); |
77ca0c92 LW |
5910 | } |
5911 | if (*p != '$') | |
cea2e8a9 | 5912 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
5db06880 NC |
5913 | #ifdef PERL_MAD |
5914 | s = SvPVX(PL_linestr) + soff; | |
5915 | #endif | |
55497cff | 5916 | } |
79072805 LW |
5917 | OPERATOR(FOR); |
5918 | ||
5919 | case KEY_formline: | |
a0d0e21e | 5920 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
5921 | |
5922 | case KEY_fork: | |
5923 | FUN0(OP_FORK); | |
5924 | ||
5925 | case KEY_fcntl: | |
a0d0e21e | 5926 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
5927 | |
5928 | case KEY_fileno: | |
5929 | UNI(OP_FILENO); | |
5930 | ||
5931 | case KEY_flock: | |
a0d0e21e | 5932 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
5933 | |
5934 | case KEY_gt: | |
5935 | Rop(OP_SGT); | |
5936 | ||
5937 | case KEY_ge: | |
5938 | Rop(OP_SGE); | |
5939 | ||
5940 | case KEY_grep: | |
2c38e13d | 5941 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
5942 | |
5943 | case KEY_goto: | |
a0d0e21e | 5944 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5945 | LOOPX(OP_GOTO); |
5946 | ||
5947 | case KEY_gmtime: | |
5948 | UNI(OP_GMTIME); | |
5949 | ||
5950 | case KEY_getc: | |
6f33ba73 | 5951 | UNIDOR(OP_GETC); |
79072805 LW |
5952 | |
5953 | case KEY_getppid: | |
5954 | FUN0(OP_GETPPID); | |
5955 | ||
5956 | case KEY_getpgrp: | |
5957 | UNI(OP_GETPGRP); | |
5958 | ||
5959 | case KEY_getpriority: | |
a0d0e21e | 5960 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
5961 | |
5962 | case KEY_getprotobyname: | |
5963 | UNI(OP_GPBYNAME); | |
5964 | ||
5965 | case KEY_getprotobynumber: | |
a0d0e21e | 5966 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
5967 | |
5968 | case KEY_getprotoent: | |
5969 | FUN0(OP_GPROTOENT); | |
5970 | ||
5971 | case KEY_getpwent: | |
5972 | FUN0(OP_GPWENT); | |
5973 | ||
5974 | case KEY_getpwnam: | |
ff68c719 | 5975 | UNI(OP_GPWNAM); |
79072805 LW |
5976 | |
5977 | case KEY_getpwuid: | |
ff68c719 | 5978 | UNI(OP_GPWUID); |
79072805 LW |
5979 | |
5980 | case KEY_getpeername: | |
5981 | UNI(OP_GETPEERNAME); | |
5982 | ||
5983 | case KEY_gethostbyname: | |
5984 | UNI(OP_GHBYNAME); | |
5985 | ||
5986 | case KEY_gethostbyaddr: | |
a0d0e21e | 5987 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
5988 | |
5989 | case KEY_gethostent: | |
5990 | FUN0(OP_GHOSTENT); | |
5991 | ||
5992 | case KEY_getnetbyname: | |
5993 | UNI(OP_GNBYNAME); | |
5994 | ||
5995 | case KEY_getnetbyaddr: | |
a0d0e21e | 5996 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
5997 | |
5998 | case KEY_getnetent: | |
5999 | FUN0(OP_GNETENT); | |
6000 | ||
6001 | case KEY_getservbyname: | |
a0d0e21e | 6002 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
6003 | |
6004 | case KEY_getservbyport: | |
a0d0e21e | 6005 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
6006 | |
6007 | case KEY_getservent: | |
6008 | FUN0(OP_GSERVENT); | |
6009 | ||
6010 | case KEY_getsockname: | |
6011 | UNI(OP_GETSOCKNAME); | |
6012 | ||
6013 | case KEY_getsockopt: | |
a0d0e21e | 6014 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
6015 | |
6016 | case KEY_getgrent: | |
6017 | FUN0(OP_GGRENT); | |
6018 | ||
6019 | case KEY_getgrnam: | |
ff68c719 | 6020 | UNI(OP_GGRNAM); |
79072805 LW |
6021 | |
6022 | case KEY_getgrgid: | |
ff68c719 | 6023 | UNI(OP_GGRGID); |
79072805 LW |
6024 | |
6025 | case KEY_getlogin: | |
6026 | FUN0(OP_GETLOGIN); | |
6027 | ||
0d863452 RH |
6028 | case KEY_given: |
6029 | yylval.ival = CopLINE(PL_curcop); | |
6030 | OPERATOR(GIVEN); | |
6031 | ||
93a17b20 | 6032 | case KEY_glob: |
a0d0e21e LW |
6033 | set_csh(); |
6034 | LOP(OP_GLOB,XTERM); | |
93a17b20 | 6035 | |
79072805 LW |
6036 | case KEY_hex: |
6037 | UNI(OP_HEX); | |
6038 | ||
6039 | case KEY_if: | |
57843af0 | 6040 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6041 | OPERATOR(IF); |
6042 | ||
6043 | case KEY_index: | |
a0d0e21e | 6044 | LOP(OP_INDEX,XTERM); |
79072805 LW |
6045 | |
6046 | case KEY_int: | |
6047 | UNI(OP_INT); | |
6048 | ||
6049 | case KEY_ioctl: | |
a0d0e21e | 6050 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
6051 | |
6052 | case KEY_join: | |
a0d0e21e | 6053 | LOP(OP_JOIN,XTERM); |
79072805 LW |
6054 | |
6055 | case KEY_keys: | |
6056 | UNI(OP_KEYS); | |
6057 | ||
6058 | case KEY_kill: | |
a0d0e21e | 6059 | LOP(OP_KILL,XTERM); |
79072805 LW |
6060 | |
6061 | case KEY_last: | |
a0d0e21e | 6062 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 6063 | LOOPX(OP_LAST); |
4e553d73 | 6064 | |
79072805 LW |
6065 | case KEY_lc: |
6066 | UNI(OP_LC); | |
6067 | ||
6068 | case KEY_lcfirst: | |
6069 | UNI(OP_LCFIRST); | |
6070 | ||
6071 | case KEY_local: | |
09bef843 | 6072 | yylval.ival = 0; |
79072805 LW |
6073 | OPERATOR(LOCAL); |
6074 | ||
6075 | case KEY_length: | |
6076 | UNI(OP_LENGTH); | |
6077 | ||
6078 | case KEY_lt: | |
6079 | Rop(OP_SLT); | |
6080 | ||
6081 | case KEY_le: | |
6082 | Rop(OP_SLE); | |
6083 | ||
6084 | case KEY_localtime: | |
6085 | UNI(OP_LOCALTIME); | |
6086 | ||
6087 | case KEY_log: | |
6088 | UNI(OP_LOG); | |
6089 | ||
6090 | case KEY_link: | |
a0d0e21e | 6091 | LOP(OP_LINK,XTERM); |
79072805 LW |
6092 | |
6093 | case KEY_listen: | |
a0d0e21e | 6094 | LOP(OP_LISTEN,XTERM); |
79072805 | 6095 | |
c0329465 MB |
6096 | case KEY_lock: |
6097 | UNI(OP_LOCK); | |
6098 | ||
79072805 LW |
6099 | case KEY_lstat: |
6100 | UNI(OP_LSTAT); | |
6101 | ||
6102 | case KEY_m: | |
8782bef2 | 6103 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
6104 | TERM(sublex_start()); |
6105 | ||
a0d0e21e | 6106 | case KEY_map: |
2c38e13d | 6107 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 6108 | |
79072805 | 6109 | case KEY_mkdir: |
a0d0e21e | 6110 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
6111 | |
6112 | case KEY_msgctl: | |
a0d0e21e | 6113 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
6114 | |
6115 | case KEY_msgget: | |
a0d0e21e | 6116 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
6117 | |
6118 | case KEY_msgrcv: | |
a0d0e21e | 6119 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
6120 | |
6121 | case KEY_msgsnd: | |
a0d0e21e | 6122 | LOP(OP_MSGSND,XTERM); |
79072805 | 6123 | |
77ca0c92 | 6124 | case KEY_our: |
93a17b20 | 6125 | case KEY_my: |
952306ac | 6126 | case KEY_state: |
77ca0c92 | 6127 | PL_in_my = tmp; |
29595ff2 | 6128 | s = SKIPSPACE1(s); |
7e2040f0 | 6129 | if (isIDFIRST_lazy_if(s,UTF)) { |
5db06880 NC |
6130 | #ifdef PERL_MAD |
6131 | char* start = s; | |
6132 | #endif | |
3280af22 | 6133 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
6134 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
6135 | goto really_sub; | |
def3634b | 6136 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 6137 | if (!PL_in_my_stash) { |
c750a3ec | 6138 | char tmpbuf[1024]; |
3280af22 | 6139 | PL_bufptr = s; |
d9fad198 | 6140 | my_snprintf(tmpbuf, sizeof(tmpbuf), "No such class %.1000s", PL_tokenbuf); |
c750a3ec MB |
6141 | yyerror(tmpbuf); |
6142 | } | |
5db06880 NC |
6143 | #ifdef PERL_MAD |
6144 | if (PL_madskills) { /* just add type to declarator token */ | |
cd81e915 NC |
6145 | sv_catsv(PL_thistoken, PL_nextwhite); |
6146 | PL_nextwhite = 0; | |
6147 | sv_catpvn(PL_thistoken, start, s - start); | |
5db06880 NC |
6148 | } |
6149 | #endif | |
c750a3ec | 6150 | } |
09bef843 | 6151 | yylval.ival = 1; |
55497cff | 6152 | OPERATOR(MY); |
93a17b20 | 6153 | |
79072805 | 6154 | case KEY_next: |
a0d0e21e | 6155 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6156 | LOOPX(OP_NEXT); |
6157 | ||
6158 | case KEY_ne: | |
6159 | Eop(OP_SNE); | |
6160 | ||
a0d0e21e | 6161 | case KEY_no: |
468aa647 | 6162 | s = tokenize_use(0, s); |
a0d0e21e LW |
6163 | OPERATOR(USE); |
6164 | ||
6165 | case KEY_not: | |
29595ff2 | 6166 | if (*s == '(' || (s = SKIPSPACE1(s), *s == '(')) |
2d2e263d LW |
6167 | FUN1(OP_NOT); |
6168 | else | |
6169 | OPERATOR(NOTOP); | |
a0d0e21e | 6170 | |
79072805 | 6171 | case KEY_open: |
29595ff2 | 6172 | s = SKIPSPACE1(s); |
7e2040f0 | 6173 | if (isIDFIRST_lazy_if(s,UTF)) { |
f54cb97a | 6174 | const char *t; |
c35e046a AL |
6175 | for (d = s; isALNUM_lazy_if(d,UTF);) |
6176 | d++; | |
6177 | for (t=d; isSPACE(*t);) | |
6178 | t++; | |
e2ab214b | 6179 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) |
66fbe8fb HS |
6180 | /* [perl #16184] */ |
6181 | && !(t[0] == '=' && t[1] == '>') | |
6182 | ) { | |
5f66b61c | 6183 | int parms_len = (int)(d-s); |
9014280d | 6184 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 6185 | "Precedence problem: open %.*s should be open(%.*s)", |
5f66b61c | 6186 | parms_len, s, parms_len, s); |
66fbe8fb | 6187 | } |
93a17b20 | 6188 | } |
a0d0e21e | 6189 | LOP(OP_OPEN,XTERM); |
79072805 | 6190 | |
463ee0b2 | 6191 | case KEY_or: |
a0d0e21e | 6192 | yylval.ival = OP_OR; |
463ee0b2 LW |
6193 | OPERATOR(OROP); |
6194 | ||
79072805 LW |
6195 | case KEY_ord: |
6196 | UNI(OP_ORD); | |
6197 | ||
6198 | case KEY_oct: | |
6199 | UNI(OP_OCT); | |
6200 | ||
6201 | case KEY_opendir: | |
a0d0e21e | 6202 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
6203 | |
6204 | case KEY_print: | |
3280af22 | 6205 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6206 | LOP(OP_PRINT,XREF); |
79072805 LW |
6207 | |
6208 | case KEY_printf: | |
3280af22 | 6209 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6210 | LOP(OP_PRTF,XREF); |
79072805 | 6211 | |
c07a80fd | 6212 | case KEY_prototype: |
6213 | UNI(OP_PROTOTYPE); | |
6214 | ||
79072805 | 6215 | case KEY_push: |
a0d0e21e | 6216 | LOP(OP_PUSH,XTERM); |
79072805 LW |
6217 | |
6218 | case KEY_pop: | |
6f33ba73 | 6219 | UNIDOR(OP_POP); |
79072805 | 6220 | |
a0d0e21e | 6221 | case KEY_pos: |
6f33ba73 | 6222 | UNIDOR(OP_POS); |
4e553d73 | 6223 | |
79072805 | 6224 | case KEY_pack: |
a0d0e21e | 6225 | LOP(OP_PACK,XTERM); |
79072805 LW |
6226 | |
6227 | case KEY_package: | |
a0d0e21e | 6228 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
6229 | OPERATOR(PACKAGE); |
6230 | ||
6231 | case KEY_pipe: | |
a0d0e21e | 6232 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
6233 | |
6234 | case KEY_q: | |
5db06880 | 6235 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6236 | if (!s) |
d4c19fe8 | 6237 | missingterm(NULL); |
79072805 LW |
6238 | yylval.ival = OP_CONST; |
6239 | TERM(sublex_start()); | |
6240 | ||
a0d0e21e LW |
6241 | case KEY_quotemeta: |
6242 | UNI(OP_QUOTEMETA); | |
6243 | ||
8990e307 | 6244 | case KEY_qw: |
5db06880 | 6245 | s = scan_str(s,!!PL_madskills,FALSE); |
8990e307 | 6246 | if (!s) |
d4c19fe8 | 6247 | missingterm(NULL); |
3480a8d2 | 6248 | PL_expect = XOPERATOR; |
8127e0e3 GS |
6249 | force_next(')'); |
6250 | if (SvCUR(PL_lex_stuff)) { | |
5f66b61c | 6251 | OP *words = NULL; |
8127e0e3 | 6252 | int warned = 0; |
3280af22 | 6253 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 6254 | while (len) { |
d4c19fe8 AL |
6255 | for (; isSPACE(*d) && len; --len, ++d) |
6256 | /**/; | |
8127e0e3 | 6257 | if (len) { |
d4c19fe8 | 6258 | SV *sv; |
f54cb97a | 6259 | const char *b = d; |
e476b1b5 | 6260 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
6261 | for (; !isSPACE(*d) && len; --len, ++d) { |
6262 | if (*d == ',') { | |
9014280d | 6263 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6264 | "Possible attempt to separate words with commas"); |
6265 | ++warned; | |
6266 | } | |
6267 | else if (*d == '#') { | |
9014280d | 6268 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6269 | "Possible attempt to put comments in qw() list"); |
6270 | ++warned; | |
6271 | } | |
6272 | } | |
6273 | } | |
6274 | else { | |
d4c19fe8 AL |
6275 | for (; !isSPACE(*d) && len; --len, ++d) |
6276 | /**/; | |
8127e0e3 | 6277 | } |
7948272d NIS |
6278 | sv = newSVpvn(b, d-b); |
6279 | if (DO_UTF8(PL_lex_stuff)) | |
6280 | SvUTF8_on(sv); | |
8127e0e3 | 6281 | words = append_elem(OP_LIST, words, |
7948272d | 6282 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 6283 | } |
6284 | } | |
8127e0e3 | 6285 | if (words) { |
cd81e915 | 6286 | start_force(PL_curforce); |
9ded7720 | 6287 | NEXTVAL_NEXTTOKE.opval = words; |
8127e0e3 GS |
6288 | force_next(THING); |
6289 | } | |
55497cff | 6290 | } |
37fd879b | 6291 | if (PL_lex_stuff) { |
8127e0e3 | 6292 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 6293 | PL_lex_stuff = NULL; |
37fd879b | 6294 | } |
3280af22 | 6295 | PL_expect = XTERM; |
8127e0e3 | 6296 | TOKEN('('); |
8990e307 | 6297 | |
79072805 | 6298 | case KEY_qq: |
5db06880 | 6299 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6300 | if (!s) |
d4c19fe8 | 6301 | missingterm(NULL); |
a0d0e21e | 6302 | yylval.ival = OP_STRINGIFY; |
3280af22 | 6303 | if (SvIVX(PL_lex_stuff) == '\'') |
45977657 | 6304 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
6305 | TERM(sublex_start()); |
6306 | ||
8782bef2 GB |
6307 | case KEY_qr: |
6308 | s = scan_pat(s,OP_QR); | |
6309 | TERM(sublex_start()); | |
6310 | ||
79072805 | 6311 | case KEY_qx: |
5db06880 | 6312 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6313 | if (!s) |
d4c19fe8 | 6314 | missingterm(NULL); |
9b201d7d | 6315 | readpipe_override(); |
79072805 LW |
6316 | TERM(sublex_start()); |
6317 | ||
6318 | case KEY_return: | |
6319 | OLDLOP(OP_RETURN); | |
6320 | ||
6321 | case KEY_require: | |
29595ff2 | 6322 | s = SKIPSPACE1(s); |
e759cc13 RGS |
6323 | if (isDIGIT(*s)) { |
6324 | s = force_version(s, FALSE); | |
a7cb1f99 | 6325 | } |
e759cc13 RGS |
6326 | else if (*s != 'v' || !isDIGIT(s[1]) |
6327 | || (s = force_version(s, TRUE), *s == 'v')) | |
6328 | { | |
a7cb1f99 GS |
6329 | *PL_tokenbuf = '\0'; |
6330 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 6331 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
a7cb1f99 GS |
6332 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), TRUE); |
6333 | else if (*s == '<') | |
6334 | yyerror("<> should be quotes"); | |
6335 | } | |
a72a1c8b RGS |
6336 | if (orig_keyword == KEY_require) { |
6337 | orig_keyword = 0; | |
6338 | yylval.ival = 1; | |
6339 | } | |
6340 | else | |
6341 | yylval.ival = 0; | |
6342 | PL_expect = XTERM; | |
6343 | PL_bufptr = s; | |
6344 | PL_last_uni = PL_oldbufptr; | |
6345 | PL_last_lop_op = OP_REQUIRE; | |
6346 | s = skipspace(s); | |
6347 | return REPORT( (int)REQUIRE ); | |
79072805 LW |
6348 | |
6349 | case KEY_reset: | |
6350 | UNI(OP_RESET); | |
6351 | ||
6352 | case KEY_redo: | |
a0d0e21e | 6353 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6354 | LOOPX(OP_REDO); |
6355 | ||
6356 | case KEY_rename: | |
a0d0e21e | 6357 | LOP(OP_RENAME,XTERM); |
79072805 LW |
6358 | |
6359 | case KEY_rand: | |
6360 | UNI(OP_RAND); | |
6361 | ||
6362 | case KEY_rmdir: | |
6363 | UNI(OP_RMDIR); | |
6364 | ||
6365 | case KEY_rindex: | |
a0d0e21e | 6366 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
6367 | |
6368 | case KEY_read: | |
a0d0e21e | 6369 | LOP(OP_READ,XTERM); |
79072805 LW |
6370 | |
6371 | case KEY_readdir: | |
6372 | UNI(OP_READDIR); | |
6373 | ||
93a17b20 LW |
6374 | case KEY_readline: |
6375 | set_csh(); | |
6f33ba73 | 6376 | UNIDOR(OP_READLINE); |
93a17b20 LW |
6377 | |
6378 | case KEY_readpipe: | |
6379 | set_csh(); | |
6380 | UNI(OP_BACKTICK); | |
6381 | ||
79072805 LW |
6382 | case KEY_rewinddir: |
6383 | UNI(OP_REWINDDIR); | |
6384 | ||
6385 | case KEY_recv: | |
a0d0e21e | 6386 | LOP(OP_RECV,XTERM); |
79072805 LW |
6387 | |
6388 | case KEY_reverse: | |
a0d0e21e | 6389 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
6390 | |
6391 | case KEY_readlink: | |
6f33ba73 | 6392 | UNIDOR(OP_READLINK); |
79072805 LW |
6393 | |
6394 | case KEY_ref: | |
6395 | UNI(OP_REF); | |
6396 | ||
6397 | case KEY_s: | |
6398 | s = scan_subst(s); | |
6399 | if (yylval.opval) | |
6400 | TERM(sublex_start()); | |
6401 | else | |
6402 | TOKEN(1); /* force error */ | |
6403 | ||
0d863452 RH |
6404 | case KEY_say: |
6405 | checkcomma(s,PL_tokenbuf,"filehandle"); | |
6406 | LOP(OP_SAY,XREF); | |
6407 | ||
a0d0e21e LW |
6408 | case KEY_chomp: |
6409 | UNI(OP_CHOMP); | |
4e553d73 | 6410 | |
79072805 LW |
6411 | case KEY_scalar: |
6412 | UNI(OP_SCALAR); | |
6413 | ||
6414 | case KEY_select: | |
a0d0e21e | 6415 | LOP(OP_SELECT,XTERM); |
79072805 LW |
6416 | |
6417 | case KEY_seek: | |
a0d0e21e | 6418 | LOP(OP_SEEK,XTERM); |
79072805 LW |
6419 | |
6420 | case KEY_semctl: | |
a0d0e21e | 6421 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
6422 | |
6423 | case KEY_semget: | |
a0d0e21e | 6424 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
6425 | |
6426 | case KEY_semop: | |
a0d0e21e | 6427 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
6428 | |
6429 | case KEY_send: | |
a0d0e21e | 6430 | LOP(OP_SEND,XTERM); |
79072805 LW |
6431 | |
6432 | case KEY_setpgrp: | |
a0d0e21e | 6433 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
6434 | |
6435 | case KEY_setpriority: | |
a0d0e21e | 6436 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
6437 | |
6438 | case KEY_sethostent: | |
ff68c719 | 6439 | UNI(OP_SHOSTENT); |
79072805 LW |
6440 | |
6441 | case KEY_setnetent: | |
ff68c719 | 6442 | UNI(OP_SNETENT); |
79072805 LW |
6443 | |
6444 | case KEY_setservent: | |
ff68c719 | 6445 | UNI(OP_SSERVENT); |
79072805 LW |
6446 | |
6447 | case KEY_setprotoent: | |
ff68c719 | 6448 | UNI(OP_SPROTOENT); |
79072805 LW |
6449 | |
6450 | case KEY_setpwent: | |
6451 | FUN0(OP_SPWENT); | |
6452 | ||
6453 | case KEY_setgrent: | |
6454 | FUN0(OP_SGRENT); | |
6455 | ||
6456 | case KEY_seekdir: | |
a0d0e21e | 6457 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
6458 | |
6459 | case KEY_setsockopt: | |
a0d0e21e | 6460 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
6461 | |
6462 | case KEY_shift: | |
6f33ba73 | 6463 | UNIDOR(OP_SHIFT); |
79072805 LW |
6464 | |
6465 | case KEY_shmctl: | |
a0d0e21e | 6466 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
6467 | |
6468 | case KEY_shmget: | |
a0d0e21e | 6469 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
6470 | |
6471 | case KEY_shmread: | |
a0d0e21e | 6472 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
6473 | |
6474 | case KEY_shmwrite: | |
a0d0e21e | 6475 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
6476 | |
6477 | case KEY_shutdown: | |
a0d0e21e | 6478 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
6479 | |
6480 | case KEY_sin: | |
6481 | UNI(OP_SIN); | |
6482 | ||
6483 | case KEY_sleep: | |
6484 | UNI(OP_SLEEP); | |
6485 | ||
6486 | case KEY_socket: | |
a0d0e21e | 6487 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
6488 | |
6489 | case KEY_socketpair: | |
a0d0e21e | 6490 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
6491 | |
6492 | case KEY_sort: | |
3280af22 | 6493 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
29595ff2 | 6494 | s = SKIPSPACE1(s); |
79072805 | 6495 | if (*s == ';' || *s == ')') /* probably a close */ |
cea2e8a9 | 6496 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 6497 | PL_expect = XTERM; |
15f0808c | 6498 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 6499 | LOP(OP_SORT,XREF); |
79072805 LW |
6500 | |
6501 | case KEY_split: | |
a0d0e21e | 6502 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
6503 | |
6504 | case KEY_sprintf: | |
a0d0e21e | 6505 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
6506 | |
6507 | case KEY_splice: | |
a0d0e21e | 6508 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
6509 | |
6510 | case KEY_sqrt: | |
6511 | UNI(OP_SQRT); | |
6512 | ||
6513 | case KEY_srand: | |
6514 | UNI(OP_SRAND); | |
6515 | ||
6516 | case KEY_stat: | |
6517 | UNI(OP_STAT); | |
6518 | ||
6519 | case KEY_study: | |
79072805 LW |
6520 | UNI(OP_STUDY); |
6521 | ||
6522 | case KEY_substr: | |
a0d0e21e | 6523 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
6524 | |
6525 | case KEY_format: | |
6526 | case KEY_sub: | |
93a17b20 | 6527 | really_sub: |
09bef843 | 6528 | { |
3280af22 | 6529 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 6530 | SSize_t tboffset = 0; |
09bef843 | 6531 | expectation attrful; |
28cc6278 | 6532 | bool have_name, have_proto; |
f54cb97a | 6533 | const int key = tmp; |
09bef843 | 6534 | |
5db06880 NC |
6535 | #ifdef PERL_MAD |
6536 | SV *tmpwhite = 0; | |
6537 | ||
cd81e915 | 6538 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
5db06880 | 6539 | SV *subtoken = newSVpvn(tstart, s - tstart); |
cd81e915 | 6540 | PL_thistoken = 0; |
5db06880 NC |
6541 | |
6542 | d = s; | |
6543 | s = SKIPSPACE2(s,tmpwhite); | |
6544 | #else | |
09bef843 | 6545 | s = skipspace(s); |
5db06880 | 6546 | #endif |
09bef843 | 6547 | |
7e2040f0 | 6548 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
6549 | (*s == ':' && s[1] == ':')) |
6550 | { | |
5db06880 NC |
6551 | #ifdef PERL_MAD |
6552 | SV *nametoke; | |
6553 | #endif | |
6554 | ||
09bef843 SB |
6555 | PL_expect = XBLOCK; |
6556 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
6557 | /* remember buffer pos'n for later force_word */ |
6558 | tboffset = s - PL_oldbufptr; | |
09bef843 | 6559 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5db06880 NC |
6560 | #ifdef PERL_MAD |
6561 | if (PL_madskills) | |
6562 | nametoke = newSVpvn(s, d - s); | |
6563 | #endif | |
09bef843 SB |
6564 | if (strchr(tmpbuf, ':')) |
6565 | sv_setpv(PL_subname, tmpbuf); | |
6566 | else { | |
6567 | sv_setsv(PL_subname,PL_curstname); | |
396482e1 | 6568 | sv_catpvs(PL_subname,"::"); |
09bef843 SB |
6569 | sv_catpvn(PL_subname,tmpbuf,len); |
6570 | } | |
09bef843 | 6571 | have_name = TRUE; |
5db06880 NC |
6572 | |
6573 | #ifdef PERL_MAD | |
6574 | ||
6575 | start_force(0); | |
6576 | CURMAD('X', nametoke); | |
6577 | CURMAD('_', tmpwhite); | |
6578 | (void) force_word(PL_oldbufptr + tboffset, WORD, | |
6579 | FALSE, TRUE, TRUE); | |
6580 | ||
6581 | s = SKIPSPACE2(d,tmpwhite); | |
6582 | #else | |
6583 | s = skipspace(d); | |
6584 | #endif | |
09bef843 | 6585 | } |
463ee0b2 | 6586 | else { |
09bef843 SB |
6587 | if (key == KEY_my) |
6588 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
6589 | PL_expect = XTERMBLOCK; | |
6590 | attrful = XATTRTERM; | |
c69006e4 | 6591 | sv_setpvn(PL_subname,"?",1); |
09bef843 | 6592 | have_name = FALSE; |
463ee0b2 | 6593 | } |
4633a7c4 | 6594 | |
09bef843 SB |
6595 | if (key == KEY_format) { |
6596 | if (*s == '=') | |
6597 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5db06880 | 6598 | #ifdef PERL_MAD |
cd81e915 | 6599 | PL_thistoken = subtoken; |
5db06880 NC |
6600 | s = d; |
6601 | #else | |
09bef843 | 6602 | if (have_name) |
b1b65b59 JH |
6603 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6604 | FALSE, TRUE, TRUE); | |
5db06880 | 6605 | #endif |
09bef843 SB |
6606 | OPERATOR(FORMAT); |
6607 | } | |
79072805 | 6608 | |
09bef843 SB |
6609 | /* Look for a prototype */ |
6610 | if (*s == '(') { | |
d9f2850e RGS |
6611 | char *p; |
6612 | bool bad_proto = FALSE; | |
6613 | const bool warnsyntax = ckWARN(WARN_SYNTAX); | |
09bef843 | 6614 | |
5db06880 | 6615 | s = scan_str(s,!!PL_madskills,FALSE); |
37fd879b | 6616 | if (!s) |
09bef843 | 6617 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 6618 | /* strip spaces and check for bad characters */ |
09bef843 SB |
6619 | d = SvPVX(PL_lex_stuff); |
6620 | tmp = 0; | |
d9f2850e RGS |
6621 | for (p = d; *p; ++p) { |
6622 | if (!isSPACE(*p)) { | |
6623 | d[tmp++] = *p; | |
b13fd70a | 6624 | if (warnsyntax && !strchr("$@%*;[]&\\_", *p)) |
d9f2850e | 6625 | bad_proto = TRUE; |
d37a9538 | 6626 | } |
09bef843 | 6627 | } |
d9f2850e RGS |
6628 | d[tmp] = '\0'; |
6629 | if (bad_proto) | |
6630 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
6631 | "Illegal character in prototype for %"SVf" : %s", | |
6632 | (void*)PL_subname, d); | |
b162af07 | 6633 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 6634 | have_proto = TRUE; |
68dc0745 | 6635 | |
5db06880 NC |
6636 | #ifdef PERL_MAD |
6637 | start_force(0); | |
cd81e915 | 6638 | CURMAD('q', PL_thisopen); |
5db06880 | 6639 | CURMAD('_', tmpwhite); |
cd81e915 NC |
6640 | CURMAD('=', PL_thisstuff); |
6641 | CURMAD('Q', PL_thisclose); | |
5db06880 NC |
6642 | NEXTVAL_NEXTTOKE.opval = |
6643 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
6644 | PL_lex_stuff = Nullsv; | |
6645 | force_next(THING); | |
6646 | ||
6647 | s = SKIPSPACE2(s,tmpwhite); | |
6648 | #else | |
09bef843 | 6649 | s = skipspace(s); |
5db06880 | 6650 | #endif |
4633a7c4 | 6651 | } |
09bef843 SB |
6652 | else |
6653 | have_proto = FALSE; | |
6654 | ||
6655 | if (*s == ':' && s[1] != ':') | |
6656 | PL_expect = attrful; | |
8e742a20 MHM |
6657 | else if (*s != '{' && key == KEY_sub) { |
6658 | if (!have_name) | |
6659 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
6660 | else if (*s != ';') | |
95b63a38 | 6661 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, (void*)PL_subname); |
8e742a20 | 6662 | } |
09bef843 | 6663 | |
5db06880 NC |
6664 | #ifdef PERL_MAD |
6665 | start_force(0); | |
6666 | if (tmpwhite) { | |
6667 | if (PL_madskills) | |
6b29d1f5 | 6668 | curmad('^', newSVpvs("")); |
5db06880 NC |
6669 | CURMAD('_', tmpwhite); |
6670 | } | |
6671 | force_next(0); | |
6672 | ||
cd81e915 | 6673 | PL_thistoken = subtoken; |
5db06880 | 6674 | #else |
09bef843 | 6675 | if (have_proto) { |
9ded7720 | 6676 | NEXTVAL_NEXTTOKE.opval = |
b1b65b59 | 6677 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); |
a0714e2c | 6678 | PL_lex_stuff = NULL; |
09bef843 | 6679 | force_next(THING); |
68dc0745 | 6680 | } |
5db06880 | 6681 | #endif |
09bef843 | 6682 | if (!have_name) { |
c99da370 | 6683 | sv_setpv(PL_subname, |
10edeb5d JH |
6684 | (const char *) |
6685 | (PL_curstash ? "__ANON__" : "__ANON__::__ANON__")); | |
09bef843 | 6686 | TOKEN(ANONSUB); |
4633a7c4 | 6687 | } |
5db06880 | 6688 | #ifndef PERL_MAD |
b1b65b59 JH |
6689 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6690 | FALSE, TRUE, TRUE); | |
5db06880 | 6691 | #endif |
09bef843 SB |
6692 | if (key == KEY_my) |
6693 | TOKEN(MYSUB); | |
6694 | TOKEN(SUB); | |
4633a7c4 | 6695 | } |
79072805 LW |
6696 | |
6697 | case KEY_system: | |
6698 | set_csh(); | |
a0d0e21e | 6699 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
6700 | |
6701 | case KEY_symlink: | |
a0d0e21e | 6702 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
6703 | |
6704 | case KEY_syscall: | |
a0d0e21e | 6705 | LOP(OP_SYSCALL,XTERM); |
79072805 | 6706 | |
c07a80fd | 6707 | case KEY_sysopen: |
6708 | LOP(OP_SYSOPEN,XTERM); | |
6709 | ||
137443ea | 6710 | case KEY_sysseek: |
6711 | LOP(OP_SYSSEEK,XTERM); | |
6712 | ||
79072805 | 6713 | case KEY_sysread: |
a0d0e21e | 6714 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
6715 | |
6716 | case KEY_syswrite: | |
a0d0e21e | 6717 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
6718 | |
6719 | case KEY_tr: | |
6720 | s = scan_trans(s); | |
6721 | TERM(sublex_start()); | |
6722 | ||
6723 | case KEY_tell: | |
6724 | UNI(OP_TELL); | |
6725 | ||
6726 | case KEY_telldir: | |
6727 | UNI(OP_TELLDIR); | |
6728 | ||
463ee0b2 | 6729 | case KEY_tie: |
a0d0e21e | 6730 | LOP(OP_TIE,XTERM); |
463ee0b2 | 6731 | |
c07a80fd | 6732 | case KEY_tied: |
6733 | UNI(OP_TIED); | |
6734 | ||
79072805 LW |
6735 | case KEY_time: |
6736 | FUN0(OP_TIME); | |
6737 | ||
6738 | case KEY_times: | |
6739 | FUN0(OP_TMS); | |
6740 | ||
6741 | case KEY_truncate: | |
a0d0e21e | 6742 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
6743 | |
6744 | case KEY_uc: | |
6745 | UNI(OP_UC); | |
6746 | ||
6747 | case KEY_ucfirst: | |
6748 | UNI(OP_UCFIRST); | |
6749 | ||
463ee0b2 LW |
6750 | case KEY_untie: |
6751 | UNI(OP_UNTIE); | |
6752 | ||
79072805 | 6753 | case KEY_until: |
57843af0 | 6754 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6755 | OPERATOR(UNTIL); |
6756 | ||
6757 | case KEY_unless: | |
57843af0 | 6758 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6759 | OPERATOR(UNLESS); |
6760 | ||
6761 | case KEY_unlink: | |
a0d0e21e | 6762 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
6763 | |
6764 | case KEY_undef: | |
6f33ba73 | 6765 | UNIDOR(OP_UNDEF); |
79072805 LW |
6766 | |
6767 | case KEY_unpack: | |
a0d0e21e | 6768 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
6769 | |
6770 | case KEY_utime: | |
a0d0e21e | 6771 | LOP(OP_UTIME,XTERM); |
79072805 LW |
6772 | |
6773 | case KEY_umask: | |
6f33ba73 | 6774 | UNIDOR(OP_UMASK); |
79072805 LW |
6775 | |
6776 | case KEY_unshift: | |
a0d0e21e LW |
6777 | LOP(OP_UNSHIFT,XTERM); |
6778 | ||
6779 | case KEY_use: | |
468aa647 | 6780 | s = tokenize_use(1, s); |
a0d0e21e | 6781 | OPERATOR(USE); |
79072805 LW |
6782 | |
6783 | case KEY_values: | |
6784 | UNI(OP_VALUES); | |
6785 | ||
6786 | case KEY_vec: | |
a0d0e21e | 6787 | LOP(OP_VEC,XTERM); |
79072805 | 6788 | |
0d863452 RH |
6789 | case KEY_when: |
6790 | yylval.ival = CopLINE(PL_curcop); | |
6791 | OPERATOR(WHEN); | |
6792 | ||
79072805 | 6793 | case KEY_while: |
57843af0 | 6794 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6795 | OPERATOR(WHILE); |
6796 | ||
6797 | case KEY_warn: | |
3280af22 | 6798 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 6799 | LOP(OP_WARN,XTERM); |
79072805 LW |
6800 | |
6801 | case KEY_wait: | |
6802 | FUN0(OP_WAIT); | |
6803 | ||
6804 | case KEY_waitpid: | |
a0d0e21e | 6805 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
6806 | |
6807 | case KEY_wantarray: | |
6808 | FUN0(OP_WANTARRAY); | |
6809 | ||
6810 | case KEY_write: | |
9d116dd7 JH |
6811 | #ifdef EBCDIC |
6812 | { | |
df3728a2 JH |
6813 | char ctl_l[2]; |
6814 | ctl_l[0] = toCTRL('L'); | |
6815 | ctl_l[1] = '\0'; | |
fafc274c | 6816 | gv_fetchpvn_flags(ctl_l, 1, GV_ADD|GV_NOTQUAL, SVt_PV); |
9d116dd7 JH |
6817 | } |
6818 | #else | |
fafc274c NC |
6819 | /* Make sure $^L is defined */ |
6820 | gv_fetchpvs("\f", GV_ADD|GV_NOTQUAL, SVt_PV); | |
9d116dd7 | 6821 | #endif |
79072805 LW |
6822 | UNI(OP_ENTERWRITE); |
6823 | ||
6824 | case KEY_x: | |
3280af22 | 6825 | if (PL_expect == XOPERATOR) |
79072805 LW |
6826 | Mop(OP_REPEAT); |
6827 | check_uni(); | |
6828 | goto just_a_word; | |
6829 | ||
a0d0e21e LW |
6830 | case KEY_xor: |
6831 | yylval.ival = OP_XOR; | |
6832 | OPERATOR(OROP); | |
6833 | ||
79072805 LW |
6834 | case KEY_y: |
6835 | s = scan_trans(s); | |
6836 | TERM(sublex_start()); | |
6837 | } | |
49dc05e3 | 6838 | }} |
79072805 | 6839 | } |
bf4acbe4 GS |
6840 | #ifdef __SC__ |
6841 | #pragma segment Main | |
6842 | #endif | |
79072805 | 6843 | |
e930465f JH |
6844 | static int |
6845 | S_pending_ident(pTHX) | |
8eceec63 | 6846 | { |
97aff369 | 6847 | dVAR; |
8eceec63 | 6848 | register char *d; |
bbd11bfc | 6849 | PADOFFSET tmp = 0; |
8eceec63 SC |
6850 | /* pit holds the identifier we read and pending_ident is reset */ |
6851 | char pit = PL_pending_ident; | |
6852 | PL_pending_ident = 0; | |
6853 | ||
cd81e915 | 6854 | /* PL_realtokenstart = realtokenend = PL_bufptr - SvPVX(PL_linestr); */ |
8eceec63 | 6855 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 6856 | "### Pending identifier '%s'\n", PL_tokenbuf); }); |
8eceec63 SC |
6857 | |
6858 | /* if we're in a my(), we can't allow dynamics here. | |
6859 | $foo'bar has already been turned into $foo::bar, so | |
6860 | just check for colons. | |
6861 | ||
6862 | if it's a legal name, the OP is a PADANY. | |
6863 | */ | |
6864 | if (PL_in_my) { | |
6865 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
6866 | if (strchr(PL_tokenbuf,':')) | |
6867 | yyerror(Perl_form(aTHX_ "No package name allowed for " | |
6868 | "variable %s in \"our\"", | |
6869 | PL_tokenbuf)); | |
dd2155a4 | 6870 | tmp = allocmy(PL_tokenbuf); |
8eceec63 SC |
6871 | } |
6872 | else { | |
6873 | if (strchr(PL_tokenbuf,':')) | |
952306ac RGS |
6874 | yyerror(Perl_form(aTHX_ PL_no_myglob, |
6875 | PL_in_my == KEY_my ? "my" : "state", PL_tokenbuf)); | |
8eceec63 SC |
6876 | |
6877 | yylval.opval = newOP(OP_PADANY, 0); | |
dd2155a4 | 6878 | yylval.opval->op_targ = allocmy(PL_tokenbuf); |
8eceec63 SC |
6879 | return PRIVATEREF; |
6880 | } | |
6881 | } | |
6882 | ||
6883 | /* | |
6884 | build the ops for accesses to a my() variable. | |
6885 | ||
6886 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
6887 | then used in a comparison. This catches most, but not | |
6888 | all cases. For instance, it catches | |
6889 | sort { my($a); $a <=> $b } | |
6890 | but not | |
6891 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
6892 | (although why you'd do that is anyone's guess). | |
6893 | */ | |
6894 | ||
6895 | if (!strchr(PL_tokenbuf,':')) { | |
8716503d DM |
6896 | if (!PL_in_my) |
6897 | tmp = pad_findmy(PL_tokenbuf); | |
6898 | if (tmp != NOT_IN_PAD) { | |
8eceec63 | 6899 | /* might be an "our" variable" */ |
00b1698f | 6900 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
8eceec63 | 6901 | /* build ops for a bareword */ |
b64e5050 AL |
6902 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
6903 | HEK * const stashname = HvNAME_HEK(stash); | |
6904 | SV * const sym = newSVhek(stashname); | |
396482e1 | 6905 | sv_catpvs(sym, "::"); |
8eceec63 SC |
6906 | sv_catpv(sym, PL_tokenbuf+1); |
6907 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); | |
6908 | yylval.opval->op_private = OPpCONST_ENTERED; | |
7a5fd60d | 6909 | gv_fetchsv(sym, |
8eceec63 SC |
6910 | (PL_in_eval |
6911 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 6912 | : GV_ADDMULTI |
8eceec63 SC |
6913 | ), |
6914 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
6915 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
6916 | : SVt_PVHV)); | |
6917 | return WORD; | |
6918 | } | |
6919 | ||
6920 | /* if it's a sort block and they're naming $a or $b */ | |
6921 | if (PL_last_lop_op == OP_SORT && | |
6922 | PL_tokenbuf[0] == '$' && | |
6923 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
6924 | && !PL_tokenbuf[2]) | |
6925 | { | |
6926 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
6927 | d < PL_bufend && *d != '\n'; | |
6928 | d++) | |
6929 | { | |
6930 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
6931 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
6932 | PL_tokenbuf); | |
6933 | } | |
6934 | } | |
6935 | } | |
6936 | ||
6937 | yylval.opval = newOP(OP_PADANY, 0); | |
6938 | yylval.opval->op_targ = tmp; | |
6939 | return PRIVATEREF; | |
6940 | } | |
6941 | } | |
6942 | ||
6943 | /* | |
6944 | Whine if they've said @foo in a doublequoted string, | |
6945 | and @foo isn't a variable we can find in the symbol | |
6946 | table. | |
6947 | */ | |
6948 | if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
f776e3cd | 6949 | GV *gv = gv_fetchpv(PL_tokenbuf+1, 0, SVt_PVAV); |
8eceec63 SC |
6950 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
6951 | && ckWARN(WARN_AMBIGUOUS)) | |
6952 | { | |
6953 | /* Downgraded from fatal to warning 20000522 mjd */ | |
9014280d | 6954 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
8eceec63 SC |
6955 | "Possible unintended interpolation of %s in string", |
6956 | PL_tokenbuf); | |
6957 | } | |
6958 | } | |
6959 | ||
6960 | /* build ops for a bareword */ | |
6961 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf+1, 0)); | |
6962 | yylval.opval->op_private = OPpCONST_ENTERED; | |
adc51b97 RGS |
6963 | gv_fetchpv( |
6964 | PL_tokenbuf+1, | |
d6069db2 RGS |
6965 | /* If the identifier refers to a stash, don't autovivify it. |
6966 | * Change 24660 had the side effect of causing symbol table | |
6967 | * hashes to always be defined, even if they were freshly | |
6968 | * created and the only reference in the entire program was | |
6969 | * the single statement with the defined %foo::bar:: test. | |
6970 | * It appears that all code in the wild doing this actually | |
6971 | * wants to know whether sub-packages have been loaded, so | |
6972 | * by avoiding auto-vivifying symbol tables, we ensure that | |
6973 | * defined %foo::bar:: continues to be false, and the existing | |
6974 | * tests still give the expected answers, even though what | |
6975 | * they're actually testing has now changed subtly. | |
6976 | */ | |
6977 | (*PL_tokenbuf == '%' && *(d = PL_tokenbuf + strlen(PL_tokenbuf) - 1) == ':' && d[-1] == ':' | |
6978 | ? 0 | |
6979 | : PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD), | |
adc51b97 RGS |
6980 | ((PL_tokenbuf[0] == '$') ? SVt_PV |
6981 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
6982 | : SVt_PVHV)); | |
8eceec63 SC |
6983 | return WORD; |
6984 | } | |
6985 | ||
4c3bbe0f MHM |
6986 | /* |
6987 | * The following code was generated by perl_keyword.pl. | |
6988 | */ | |
e2e1dd5a | 6989 | |
79072805 | 6990 | I32 |
5458a98a | 6991 | Perl_keyword (pTHX_ const char *name, I32 len, bool all_keywords) |
4c3bbe0f | 6992 | { |
952306ac | 6993 | dVAR; |
4c3bbe0f MHM |
6994 | switch (len) |
6995 | { | |
6996 | case 1: /* 5 tokens of length 1 */ | |
6997 | switch (name[0]) | |
e2e1dd5a | 6998 | { |
4c3bbe0f MHM |
6999 | case 'm': |
7000 | { /* m */ | |
7001 | return KEY_m; | |
7002 | } | |
7003 | ||
4c3bbe0f MHM |
7004 | case 'q': |
7005 | { /* q */ | |
7006 | return KEY_q; | |
7007 | } | |
7008 | ||
4c3bbe0f MHM |
7009 | case 's': |
7010 | { /* s */ | |
7011 | return KEY_s; | |
7012 | } | |
7013 | ||
4c3bbe0f MHM |
7014 | case 'x': |
7015 | { /* x */ | |
7016 | return -KEY_x; | |
7017 | } | |
7018 | ||
4c3bbe0f MHM |
7019 | case 'y': |
7020 | { /* y */ | |
7021 | return KEY_y; | |
7022 | } | |
7023 | ||
4c3bbe0f MHM |
7024 | default: |
7025 | goto unknown; | |
e2e1dd5a | 7026 | } |
4c3bbe0f MHM |
7027 | |
7028 | case 2: /* 18 tokens of length 2 */ | |
7029 | switch (name[0]) | |
e2e1dd5a | 7030 | { |
4c3bbe0f MHM |
7031 | case 'd': |
7032 | if (name[1] == 'o') | |
7033 | { /* do */ | |
7034 | return KEY_do; | |
7035 | } | |
7036 | ||
7037 | goto unknown; | |
7038 | ||
7039 | case 'e': | |
7040 | if (name[1] == 'q') | |
7041 | { /* eq */ | |
7042 | return -KEY_eq; | |
7043 | } | |
7044 | ||
7045 | goto unknown; | |
7046 | ||
7047 | case 'g': | |
7048 | switch (name[1]) | |
7049 | { | |
7050 | case 'e': | |
7051 | { /* ge */ | |
7052 | return -KEY_ge; | |
7053 | } | |
7054 | ||
4c3bbe0f MHM |
7055 | case 't': |
7056 | { /* gt */ | |
7057 | return -KEY_gt; | |
7058 | } | |
7059 | ||
4c3bbe0f MHM |
7060 | default: |
7061 | goto unknown; | |
7062 | } | |
7063 | ||
7064 | case 'i': | |
7065 | if (name[1] == 'f') | |
7066 | { /* if */ | |
7067 | return KEY_if; | |
7068 | } | |
7069 | ||
7070 | goto unknown; | |
7071 | ||
7072 | case 'l': | |
7073 | switch (name[1]) | |
7074 | { | |
7075 | case 'c': | |
7076 | { /* lc */ | |
7077 | return -KEY_lc; | |
7078 | } | |
7079 | ||
4c3bbe0f MHM |
7080 | case 'e': |
7081 | { /* le */ | |
7082 | return -KEY_le; | |
7083 | } | |
7084 | ||
4c3bbe0f MHM |
7085 | case 't': |
7086 | { /* lt */ | |
7087 | return -KEY_lt; | |
7088 | } | |
7089 | ||
4c3bbe0f MHM |
7090 | default: |
7091 | goto unknown; | |
7092 | } | |
7093 | ||
7094 | case 'm': | |
7095 | if (name[1] == 'y') | |
7096 | { /* my */ | |
7097 | return KEY_my; | |
7098 | } | |
7099 | ||
7100 | goto unknown; | |
7101 | ||
7102 | case 'n': | |
7103 | switch (name[1]) | |
7104 | { | |
7105 | case 'e': | |
7106 | { /* ne */ | |
7107 | return -KEY_ne; | |
7108 | } | |
7109 | ||
4c3bbe0f MHM |
7110 | case 'o': |
7111 | { /* no */ | |
7112 | return KEY_no; | |
7113 | } | |
7114 | ||
4c3bbe0f MHM |
7115 | default: |
7116 | goto unknown; | |
7117 | } | |
7118 | ||
7119 | case 'o': | |
7120 | if (name[1] == 'r') | |
7121 | { /* or */ | |
7122 | return -KEY_or; | |
7123 | } | |
7124 | ||
7125 | goto unknown; | |
7126 | ||
7127 | case 'q': | |
7128 | switch (name[1]) | |
7129 | { | |
7130 | case 'q': | |
7131 | { /* qq */ | |
7132 | return KEY_qq; | |
7133 | } | |
7134 | ||
4c3bbe0f MHM |
7135 | case 'r': |
7136 | { /* qr */ | |
7137 | return KEY_qr; | |
7138 | } | |
7139 | ||
4c3bbe0f MHM |
7140 | case 'w': |
7141 | { /* qw */ | |
7142 | return KEY_qw; | |
7143 | } | |
7144 | ||
4c3bbe0f MHM |
7145 | case 'x': |
7146 | { /* qx */ | |
7147 | return KEY_qx; | |
7148 | } | |
7149 | ||
4c3bbe0f MHM |
7150 | default: |
7151 | goto unknown; | |
7152 | } | |
7153 | ||
7154 | case 't': | |
7155 | if (name[1] == 'r') | |
7156 | { /* tr */ | |
7157 | return KEY_tr; | |
7158 | } | |
7159 | ||
7160 | goto unknown; | |
7161 | ||
7162 | case 'u': | |
7163 | if (name[1] == 'c') | |
7164 | { /* uc */ | |
7165 | return -KEY_uc; | |
7166 | } | |
7167 | ||
7168 | goto unknown; | |
7169 | ||
7170 | default: | |
7171 | goto unknown; | |
e2e1dd5a | 7172 | } |
4c3bbe0f | 7173 | |
0d863452 | 7174 | case 3: /* 29 tokens of length 3 */ |
4c3bbe0f | 7175 | switch (name[0]) |
e2e1dd5a | 7176 | { |
4c3bbe0f MHM |
7177 | case 'E': |
7178 | if (name[1] == 'N' && | |
7179 | name[2] == 'D') | |
7180 | { /* END */ | |
7181 | return KEY_END; | |
7182 | } | |
7183 | ||
7184 | goto unknown; | |
7185 | ||
7186 | case 'a': | |
7187 | switch (name[1]) | |
7188 | { | |
7189 | case 'b': | |
7190 | if (name[2] == 's') | |
7191 | { /* abs */ | |
7192 | return -KEY_abs; | |
7193 | } | |
7194 | ||
7195 | goto unknown; | |
7196 | ||
7197 | case 'n': | |
7198 | if (name[2] == 'd') | |
7199 | { /* and */ | |
7200 | return -KEY_and; | |
7201 | } | |
7202 | ||
7203 | goto unknown; | |
7204 | ||
7205 | default: | |
7206 | goto unknown; | |
7207 | } | |
7208 | ||
7209 | case 'c': | |
7210 | switch (name[1]) | |
7211 | { | |
7212 | case 'h': | |
7213 | if (name[2] == 'r') | |
7214 | { /* chr */ | |
7215 | return -KEY_chr; | |
7216 | } | |
7217 | ||
7218 | goto unknown; | |
7219 | ||
7220 | case 'm': | |
7221 | if (name[2] == 'p') | |
7222 | { /* cmp */ | |
7223 | return -KEY_cmp; | |
7224 | } | |
7225 | ||
7226 | goto unknown; | |
7227 | ||
7228 | case 'o': | |
7229 | if (name[2] == 's') | |
7230 | { /* cos */ | |
7231 | return -KEY_cos; | |
7232 | } | |
7233 | ||
7234 | goto unknown; | |
7235 | ||
7236 | default: | |
7237 | goto unknown; | |
7238 | } | |
7239 | ||
7240 | case 'd': | |
7241 | if (name[1] == 'i' && | |
7242 | name[2] == 'e') | |
7243 | { /* die */ | |
7244 | return -KEY_die; | |
7245 | } | |
7246 | ||
7247 | goto unknown; | |
7248 | ||
7249 | case 'e': | |
7250 | switch (name[1]) | |
7251 | { | |
7252 | case 'o': | |
7253 | if (name[2] == 'f') | |
7254 | { /* eof */ | |
7255 | return -KEY_eof; | |
7256 | } | |
7257 | ||
7258 | goto unknown; | |
7259 | ||
7260 | case 'r': | |
7261 | if (name[2] == 'r') | |
7262 | { /* err */ | |
5458a98a | 7263 | return (all_keywords || FEATURE_IS_ENABLED("err") ? -KEY_err : 0); |
4c3bbe0f MHM |
7264 | } |
7265 | ||
7266 | goto unknown; | |
7267 | ||
7268 | case 'x': | |
7269 | if (name[2] == 'p') | |
7270 | { /* exp */ | |
7271 | return -KEY_exp; | |
7272 | } | |
7273 | ||
7274 | goto unknown; | |
7275 | ||
7276 | default: | |
7277 | goto unknown; | |
7278 | } | |
7279 | ||
7280 | case 'f': | |
7281 | if (name[1] == 'o' && | |
7282 | name[2] == 'r') | |
7283 | { /* for */ | |
7284 | return KEY_for; | |
7285 | } | |
7286 | ||
7287 | goto unknown; | |
7288 | ||
7289 | case 'h': | |
7290 | if (name[1] == 'e' && | |
7291 | name[2] == 'x') | |
7292 | { /* hex */ | |
7293 | return -KEY_hex; | |
7294 | } | |
7295 | ||
7296 | goto unknown; | |
7297 | ||
7298 | case 'i': | |
7299 | if (name[1] == 'n' && | |
7300 | name[2] == 't') | |
7301 | { /* int */ | |
7302 | return -KEY_int; | |
7303 | } | |
7304 | ||
7305 | goto unknown; | |
7306 | ||
7307 | case 'l': | |
7308 | if (name[1] == 'o' && | |
7309 | name[2] == 'g') | |
7310 | { /* log */ | |
7311 | return -KEY_log; | |
7312 | } | |
7313 | ||
7314 | goto unknown; | |
7315 | ||
7316 | case 'm': | |
7317 | if (name[1] == 'a' && | |
7318 | name[2] == 'p') | |
7319 | { /* map */ | |
7320 | return KEY_map; | |
7321 | } | |
7322 | ||
7323 | goto unknown; | |
7324 | ||
7325 | case 'n': | |
7326 | if (name[1] == 'o' && | |
7327 | name[2] == 't') | |
7328 | { /* not */ | |
7329 | return -KEY_not; | |
7330 | } | |
7331 | ||
7332 | goto unknown; | |
7333 | ||
7334 | case 'o': | |
7335 | switch (name[1]) | |
7336 | { | |
7337 | case 'c': | |
7338 | if (name[2] == 't') | |
7339 | { /* oct */ | |
7340 | return -KEY_oct; | |
7341 | } | |
7342 | ||
7343 | goto unknown; | |
7344 | ||
7345 | case 'r': | |
7346 | if (name[2] == 'd') | |
7347 | { /* ord */ | |
7348 | return -KEY_ord; | |
7349 | } | |
7350 | ||
7351 | goto unknown; | |
7352 | ||
7353 | case 'u': | |
7354 | if (name[2] == 'r') | |
7355 | { /* our */ | |
7356 | return KEY_our; | |
7357 | } | |
7358 | ||
7359 | goto unknown; | |
7360 | ||
7361 | default: | |
7362 | goto unknown; | |
7363 | } | |
7364 | ||
7365 | case 'p': | |
7366 | if (name[1] == 'o') | |
7367 | { | |
7368 | switch (name[2]) | |
7369 | { | |
7370 | case 'p': | |
7371 | { /* pop */ | |
7372 | return -KEY_pop; | |
7373 | } | |
7374 | ||
4c3bbe0f MHM |
7375 | case 's': |
7376 | { /* pos */ | |
7377 | return KEY_pos; | |
7378 | } | |
7379 | ||
4c3bbe0f MHM |
7380 | default: |
7381 | goto unknown; | |
7382 | } | |
7383 | } | |
7384 | ||
7385 | goto unknown; | |
7386 | ||
7387 | case 'r': | |
7388 | if (name[1] == 'e' && | |
7389 | name[2] == 'f') | |
7390 | { /* ref */ | |
7391 | return -KEY_ref; | |
7392 | } | |
7393 | ||
7394 | goto unknown; | |
7395 | ||
7396 | case 's': | |
7397 | switch (name[1]) | |
7398 | { | |
0d863452 RH |
7399 | case 'a': |
7400 | if (name[2] == 'y') | |
7401 | { /* say */ | |
e3e804c9 | 7402 | return (all_keywords || FEATURE_IS_ENABLED("say") ? KEY_say : 0); |
0d863452 RH |
7403 | } |
7404 | ||
7405 | goto unknown; | |
7406 | ||
4c3bbe0f MHM |
7407 | case 'i': |
7408 | if (name[2] == 'n') | |
7409 | { /* sin */ | |
7410 | return -KEY_sin; | |
7411 | } | |
7412 | ||
7413 | goto unknown; | |
7414 | ||
7415 | case 'u': | |
7416 | if (name[2] == 'b') | |
7417 | { /* sub */ | |
7418 | return KEY_sub; | |
7419 | } | |
7420 | ||
7421 | goto unknown; | |
7422 | ||
7423 | default: | |
7424 | goto unknown; | |
7425 | } | |
7426 | ||
7427 | case 't': | |
7428 | if (name[1] == 'i' && | |
7429 | name[2] == 'e') | |
7430 | { /* tie */ | |
7431 | return KEY_tie; | |
7432 | } | |
7433 | ||
7434 | goto unknown; | |
7435 | ||
7436 | case 'u': | |
7437 | if (name[1] == 's' && | |
7438 | name[2] == 'e') | |
7439 | { /* use */ | |
7440 | return KEY_use; | |
7441 | } | |
7442 | ||
7443 | goto unknown; | |
7444 | ||
7445 | case 'v': | |
7446 | if (name[1] == 'e' && | |
7447 | name[2] == 'c') | |
7448 | { /* vec */ | |
7449 | return -KEY_vec; | |
7450 | } | |
7451 | ||
7452 | goto unknown; | |
7453 | ||
7454 | case 'x': | |
7455 | if (name[1] == 'o' && | |
7456 | name[2] == 'r') | |
7457 | { /* xor */ | |
7458 | return -KEY_xor; | |
7459 | } | |
7460 | ||
7461 | goto unknown; | |
7462 | ||
7463 | default: | |
7464 | goto unknown; | |
e2e1dd5a | 7465 | } |
4c3bbe0f | 7466 | |
0d863452 | 7467 | case 4: /* 41 tokens of length 4 */ |
4c3bbe0f | 7468 | switch (name[0]) |
e2e1dd5a | 7469 | { |
4c3bbe0f MHM |
7470 | case 'C': |
7471 | if (name[1] == 'O' && | |
7472 | name[2] == 'R' && | |
7473 | name[3] == 'E') | |
7474 | { /* CORE */ | |
7475 | return -KEY_CORE; | |
7476 | } | |
7477 | ||
7478 | goto unknown; | |
7479 | ||
7480 | case 'I': | |
7481 | if (name[1] == 'N' && | |
7482 | name[2] == 'I' && | |
7483 | name[3] == 'T') | |
7484 | { /* INIT */ | |
7485 | return KEY_INIT; | |
7486 | } | |
7487 | ||
7488 | goto unknown; | |
7489 | ||
7490 | case 'b': | |
7491 | if (name[1] == 'i' && | |
7492 | name[2] == 'n' && | |
7493 | name[3] == 'd') | |
7494 | { /* bind */ | |
7495 | return -KEY_bind; | |
7496 | } | |
7497 | ||
7498 | goto unknown; | |
7499 | ||
7500 | case 'c': | |
7501 | if (name[1] == 'h' && | |
7502 | name[2] == 'o' && | |
7503 | name[3] == 'p') | |
7504 | { /* chop */ | |
7505 | return -KEY_chop; | |
7506 | } | |
7507 | ||
7508 | goto unknown; | |
7509 | ||
7510 | case 'd': | |
7511 | if (name[1] == 'u' && | |
7512 | name[2] == 'm' && | |
7513 | name[3] == 'p') | |
7514 | { /* dump */ | |
7515 | return -KEY_dump; | |
7516 | } | |
7517 | ||
7518 | goto unknown; | |
7519 | ||
7520 | case 'e': | |
7521 | switch (name[1]) | |
7522 | { | |
7523 | case 'a': | |
7524 | if (name[2] == 'c' && | |
7525 | name[3] == 'h') | |
7526 | { /* each */ | |
7527 | return -KEY_each; | |
7528 | } | |
7529 | ||
7530 | goto unknown; | |
7531 | ||
7532 | case 'l': | |
7533 | if (name[2] == 's' && | |
7534 | name[3] == 'e') | |
7535 | { /* else */ | |
7536 | return KEY_else; | |
7537 | } | |
7538 | ||
7539 | goto unknown; | |
7540 | ||
7541 | case 'v': | |
7542 | if (name[2] == 'a' && | |
7543 | name[3] == 'l') | |
7544 | { /* eval */ | |
7545 | return KEY_eval; | |
7546 | } | |
7547 | ||
7548 | goto unknown; | |
7549 | ||
7550 | case 'x': | |
7551 | switch (name[2]) | |
7552 | { | |
7553 | case 'e': | |
7554 | if (name[3] == 'c') | |
7555 | { /* exec */ | |
7556 | return -KEY_exec; | |
7557 | } | |
7558 | ||
7559 | goto unknown; | |
7560 | ||
7561 | case 'i': | |
7562 | if (name[3] == 't') | |
7563 | { /* exit */ | |
7564 | return -KEY_exit; | |
7565 | } | |
7566 | ||
7567 | goto unknown; | |
7568 | ||
7569 | default: | |
7570 | goto unknown; | |
7571 | } | |
7572 | ||
7573 | default: | |
7574 | goto unknown; | |
7575 | } | |
7576 | ||
7577 | case 'f': | |
7578 | if (name[1] == 'o' && | |
7579 | name[2] == 'r' && | |
7580 | name[3] == 'k') | |
7581 | { /* fork */ | |
7582 | return -KEY_fork; | |
7583 | } | |
7584 | ||
7585 | goto unknown; | |
7586 | ||
7587 | case 'g': | |
7588 | switch (name[1]) | |
7589 | { | |
7590 | case 'e': | |
7591 | if (name[2] == 't' && | |
7592 | name[3] == 'c') | |
7593 | { /* getc */ | |
7594 | return -KEY_getc; | |
7595 | } | |
7596 | ||
7597 | goto unknown; | |
7598 | ||
7599 | case 'l': | |
7600 | if (name[2] == 'o' && | |
7601 | name[3] == 'b') | |
7602 | { /* glob */ | |
7603 | return KEY_glob; | |
7604 | } | |
7605 | ||
7606 | goto unknown; | |
7607 | ||
7608 | case 'o': | |
7609 | if (name[2] == 't' && | |
7610 | name[3] == 'o') | |
7611 | { /* goto */ | |
7612 | return KEY_goto; | |
7613 | } | |
7614 | ||
7615 | goto unknown; | |
7616 | ||
7617 | case 'r': | |
7618 | if (name[2] == 'e' && | |
7619 | name[3] == 'p') | |
7620 | { /* grep */ | |
7621 | return KEY_grep; | |
7622 | } | |
7623 | ||
7624 | goto unknown; | |
7625 | ||
7626 | default: | |
7627 | goto unknown; | |
7628 | } | |
7629 | ||
7630 | case 'j': | |
7631 | if (name[1] == 'o' && | |
7632 | name[2] == 'i' && | |
7633 | name[3] == 'n') | |
7634 | { /* join */ | |
7635 | return -KEY_join; | |
7636 | } | |
7637 | ||
7638 | goto unknown; | |
7639 | ||
7640 | case 'k': | |
7641 | switch (name[1]) | |
7642 | { | |
7643 | case 'e': | |
7644 | if (name[2] == 'y' && | |
7645 | name[3] == 's') | |
7646 | { /* keys */ | |
7647 | return -KEY_keys; | |
7648 | } | |
7649 | ||
7650 | goto unknown; | |
7651 | ||
7652 | case 'i': | |
7653 | if (name[2] == 'l' && | |
7654 | name[3] == 'l') | |
7655 | { /* kill */ | |
7656 | return -KEY_kill; | |
7657 | } | |
7658 | ||
7659 | goto unknown; | |
7660 | ||
7661 | default: | |
7662 | goto unknown; | |
7663 | } | |
7664 | ||
7665 | case 'l': | |
7666 | switch (name[1]) | |
7667 | { | |
7668 | case 'a': | |
7669 | if (name[2] == 's' && | |
7670 | name[3] == 't') | |
7671 | { /* last */ | |
7672 | return KEY_last; | |
7673 | } | |
7674 | ||
7675 | goto unknown; | |
7676 | ||
7677 | case 'i': | |
7678 | if (name[2] == 'n' && | |
7679 | name[3] == 'k') | |
7680 | { /* link */ | |
7681 | return -KEY_link; | |
7682 | } | |
7683 | ||
7684 | goto unknown; | |
7685 | ||
7686 | case 'o': | |
7687 | if (name[2] == 'c' && | |
7688 | name[3] == 'k') | |
7689 | { /* lock */ | |
7690 | return -KEY_lock; | |
7691 | } | |
7692 | ||
7693 | goto unknown; | |
7694 | ||
7695 | default: | |
7696 | goto unknown; | |
7697 | } | |
7698 | ||
7699 | case 'n': | |
7700 | if (name[1] == 'e' && | |
7701 | name[2] == 'x' && | |
7702 | name[3] == 't') | |
7703 | { /* next */ | |
7704 | return KEY_next; | |
7705 | } | |
7706 | ||
7707 | goto unknown; | |
7708 | ||
7709 | case 'o': | |
7710 | if (name[1] == 'p' && | |
7711 | name[2] == 'e' && | |
7712 | name[3] == 'n') | |
7713 | { /* open */ | |
7714 | return -KEY_open; | |
7715 | } | |
7716 | ||
7717 | goto unknown; | |
7718 | ||
7719 | case 'p': | |
7720 | switch (name[1]) | |
7721 | { | |
7722 | case 'a': | |
7723 | if (name[2] == 'c' && | |
7724 | name[3] == 'k') | |
7725 | { /* pack */ | |
7726 | return -KEY_pack; | |
7727 | } | |
7728 | ||
7729 | goto unknown; | |
7730 | ||
7731 | case 'i': | |
7732 | if (name[2] == 'p' && | |
7733 | name[3] == 'e') | |
7734 | { /* pipe */ | |
7735 | return -KEY_pipe; | |
7736 | } | |
7737 | ||
7738 | goto unknown; | |
7739 | ||
7740 | case 'u': | |
7741 | if (name[2] == 's' && | |
7742 | name[3] == 'h') | |
7743 | { /* push */ | |
7744 | return -KEY_push; | |
7745 | } | |
7746 | ||
7747 | goto unknown; | |
7748 | ||
7749 | default: | |
7750 | goto unknown; | |
7751 | } | |
7752 | ||
7753 | case 'r': | |
7754 | switch (name[1]) | |
7755 | { | |
7756 | case 'a': | |
7757 | if (name[2] == 'n' && | |
7758 | name[3] == 'd') | |
7759 | { /* rand */ | |
7760 | return -KEY_rand; | |
7761 | } | |
7762 | ||
7763 | goto unknown; | |
7764 | ||
7765 | case 'e': | |
7766 | switch (name[2]) | |
7767 | { | |
7768 | case 'a': | |
7769 | if (name[3] == 'd') | |
7770 | { /* read */ | |
7771 | return -KEY_read; | |
7772 | } | |
7773 | ||
7774 | goto unknown; | |
7775 | ||
7776 | case 'c': | |
7777 | if (name[3] == 'v') | |
7778 | { /* recv */ | |
7779 | return -KEY_recv; | |
7780 | } | |
7781 | ||
7782 | goto unknown; | |
7783 | ||
7784 | case 'd': | |
7785 | if (name[3] == 'o') | |
7786 | { /* redo */ | |
7787 | return KEY_redo; | |
7788 | } | |
7789 | ||
7790 | goto unknown; | |
7791 | ||
7792 | default: | |
7793 | goto unknown; | |
7794 | } | |
7795 | ||
7796 | default: | |
7797 | goto unknown; | |
7798 | } | |
7799 | ||
7800 | case 's': | |
7801 | switch (name[1]) | |
7802 | { | |
7803 | case 'e': | |
7804 | switch (name[2]) | |
7805 | { | |
7806 | case 'e': | |
7807 | if (name[3] == 'k') | |
7808 | { /* seek */ | |
7809 | return -KEY_seek; | |
7810 | } | |
7811 | ||
7812 | goto unknown; | |
7813 | ||
7814 | case 'n': | |
7815 | if (name[3] == 'd') | |
7816 | { /* send */ | |
7817 | return -KEY_send; | |
7818 | } | |
7819 | ||
7820 | goto unknown; | |
7821 | ||
7822 | default: | |
7823 | goto unknown; | |
7824 | } | |
7825 | ||
7826 | case 'o': | |
7827 | if (name[2] == 'r' && | |
7828 | name[3] == 't') | |
7829 | { /* sort */ | |
7830 | return KEY_sort; | |
7831 | } | |
7832 | ||
7833 | goto unknown; | |
7834 | ||
7835 | case 'q': | |
7836 | if (name[2] == 'r' && | |
7837 | name[3] == 't') | |
7838 | { /* sqrt */ | |
7839 | return -KEY_sqrt; | |
7840 | } | |
7841 | ||
7842 | goto unknown; | |
7843 | ||
7844 | case 't': | |
7845 | if (name[2] == 'a' && | |
7846 | name[3] == 't') | |
7847 | { /* stat */ | |
7848 | return -KEY_stat; | |
7849 | } | |
7850 | ||
7851 | goto unknown; | |
7852 | ||
7853 | default: | |
7854 | goto unknown; | |
7855 | } | |
7856 | ||
7857 | case 't': | |
7858 | switch (name[1]) | |
7859 | { | |
7860 | case 'e': | |
7861 | if (name[2] == 'l' && | |
7862 | name[3] == 'l') | |
7863 | { /* tell */ | |
7864 | return -KEY_tell; | |
7865 | } | |
7866 | ||
7867 | goto unknown; | |
7868 | ||
7869 | case 'i': | |
7870 | switch (name[2]) | |
7871 | { | |
7872 | case 'e': | |
7873 | if (name[3] == 'd') | |
7874 | { /* tied */ | |
7875 | return KEY_tied; | |
7876 | } | |
7877 | ||
7878 | goto unknown; | |
7879 | ||
7880 | case 'm': | |
7881 | if (name[3] == 'e') | |
7882 | { /* time */ | |
7883 | return -KEY_time; | |
7884 | } | |
7885 | ||
7886 | goto unknown; | |
7887 | ||
7888 | default: | |
7889 | goto unknown; | |
7890 | } | |
7891 | ||
7892 | default: | |
7893 | goto unknown; | |
7894 | } | |
7895 | ||
7896 | case 'w': | |
0d863452 | 7897 | switch (name[1]) |
4c3bbe0f | 7898 | { |
0d863452 | 7899 | case 'a': |
952306ac RGS |
7900 | switch (name[2]) |
7901 | { | |
7902 | case 'i': | |
7903 | if (name[3] == 't') | |
7904 | { /* wait */ | |
7905 | return -KEY_wait; | |
7906 | } | |
4c3bbe0f | 7907 | |
952306ac | 7908 | goto unknown; |
4c3bbe0f | 7909 | |
952306ac RGS |
7910 | case 'r': |
7911 | if (name[3] == 'n') | |
7912 | { /* warn */ | |
7913 | return -KEY_warn; | |
7914 | } | |
4c3bbe0f | 7915 | |
952306ac | 7916 | goto unknown; |
4c3bbe0f | 7917 | |
952306ac RGS |
7918 | default: |
7919 | goto unknown; | |
7920 | } | |
0d863452 RH |
7921 | |
7922 | case 'h': | |
7923 | if (name[2] == 'e' && | |
7924 | name[3] == 'n') | |
7925 | { /* when */ | |
5458a98a | 7926 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_when : 0); |
952306ac | 7927 | } |
4c3bbe0f | 7928 | |
952306ac | 7929 | goto unknown; |
4c3bbe0f | 7930 | |
952306ac RGS |
7931 | default: |
7932 | goto unknown; | |
7933 | } | |
4c3bbe0f | 7934 | |
0d863452 RH |
7935 | default: |
7936 | goto unknown; | |
7937 | } | |
7938 | ||
952306ac | 7939 | case 5: /* 39 tokens of length 5 */ |
4c3bbe0f | 7940 | switch (name[0]) |
e2e1dd5a | 7941 | { |
4c3bbe0f MHM |
7942 | case 'B': |
7943 | if (name[1] == 'E' && | |
7944 | name[2] == 'G' && | |
7945 | name[3] == 'I' && | |
7946 | name[4] == 'N') | |
7947 | { /* BEGIN */ | |
7948 | return KEY_BEGIN; | |
7949 | } | |
7950 | ||
7951 | goto unknown; | |
7952 | ||
7953 | case 'C': | |
7954 | if (name[1] == 'H' && | |
7955 | name[2] == 'E' && | |
7956 | name[3] == 'C' && | |
7957 | name[4] == 'K') | |
7958 | { /* CHECK */ | |
7959 | return KEY_CHECK; | |
7960 | } | |
7961 | ||
7962 | goto unknown; | |
7963 | ||
7964 | case 'a': | |
7965 | switch (name[1]) | |
7966 | { | |
7967 | case 'l': | |
7968 | if (name[2] == 'a' && | |
7969 | name[3] == 'r' && | |
7970 | name[4] == 'm') | |
7971 | { /* alarm */ | |
7972 | return -KEY_alarm; | |
7973 | } | |
7974 | ||
7975 | goto unknown; | |
7976 | ||
7977 | case 't': | |
7978 | if (name[2] == 'a' && | |
7979 | name[3] == 'n' && | |
7980 | name[4] == '2') | |
7981 | { /* atan2 */ | |
7982 | return -KEY_atan2; | |
7983 | } | |
7984 | ||
7985 | goto unknown; | |
7986 | ||
7987 | default: | |
7988 | goto unknown; | |
7989 | } | |
7990 | ||
7991 | case 'b': | |
0d863452 RH |
7992 | switch (name[1]) |
7993 | { | |
7994 | case 'l': | |
7995 | if (name[2] == 'e' && | |
952306ac RGS |
7996 | name[3] == 's' && |
7997 | name[4] == 's') | |
7998 | { /* bless */ | |
7999 | return -KEY_bless; | |
8000 | } | |
4c3bbe0f | 8001 | |
952306ac | 8002 | goto unknown; |
4c3bbe0f | 8003 | |
0d863452 RH |
8004 | case 'r': |
8005 | if (name[2] == 'e' && | |
8006 | name[3] == 'a' && | |
8007 | name[4] == 'k') | |
8008 | { /* break */ | |
5458a98a | 8009 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? -KEY_break : 0); |
0d863452 RH |
8010 | } |
8011 | ||
8012 | goto unknown; | |
8013 | ||
8014 | default: | |
8015 | goto unknown; | |
8016 | } | |
8017 | ||
4c3bbe0f MHM |
8018 | case 'c': |
8019 | switch (name[1]) | |
8020 | { | |
8021 | case 'h': | |
8022 | switch (name[2]) | |
8023 | { | |
8024 | case 'd': | |
8025 | if (name[3] == 'i' && | |
8026 | name[4] == 'r') | |
8027 | { /* chdir */ | |
8028 | return -KEY_chdir; | |
8029 | } | |
8030 | ||
8031 | goto unknown; | |
8032 | ||
8033 | case 'm': | |
8034 | if (name[3] == 'o' && | |
8035 | name[4] == 'd') | |
8036 | { /* chmod */ | |
8037 | return -KEY_chmod; | |
8038 | } | |
8039 | ||
8040 | goto unknown; | |
8041 | ||
8042 | case 'o': | |
8043 | switch (name[3]) | |
8044 | { | |
8045 | case 'm': | |
8046 | if (name[4] == 'p') | |
8047 | { /* chomp */ | |
8048 | return -KEY_chomp; | |
8049 | } | |
8050 | ||
8051 | goto unknown; | |
8052 | ||
8053 | case 'w': | |
8054 | if (name[4] == 'n') | |
8055 | { /* chown */ | |
8056 | return -KEY_chown; | |
8057 | } | |
8058 | ||
8059 | goto unknown; | |
8060 | ||
8061 | default: | |
8062 | goto unknown; | |
8063 | } | |
8064 | ||
8065 | default: | |
8066 | goto unknown; | |
8067 | } | |
8068 | ||
8069 | case 'l': | |
8070 | if (name[2] == 'o' && | |
8071 | name[3] == 's' && | |
8072 | name[4] == 'e') | |
8073 | { /* close */ | |
8074 | return -KEY_close; | |
8075 | } | |
8076 | ||
8077 | goto unknown; | |
8078 | ||
8079 | case 'r': | |
8080 | if (name[2] == 'y' && | |
8081 | name[3] == 'p' && | |
8082 | name[4] == 't') | |
8083 | { /* crypt */ | |
8084 | return -KEY_crypt; | |
8085 | } | |
8086 | ||
8087 | goto unknown; | |
8088 | ||
8089 | default: | |
8090 | goto unknown; | |
8091 | } | |
8092 | ||
8093 | case 'e': | |
8094 | if (name[1] == 'l' && | |
8095 | name[2] == 's' && | |
8096 | name[3] == 'i' && | |
8097 | name[4] == 'f') | |
8098 | { /* elsif */ | |
8099 | return KEY_elsif; | |
8100 | } | |
8101 | ||
8102 | goto unknown; | |
8103 | ||
8104 | case 'f': | |
8105 | switch (name[1]) | |
8106 | { | |
8107 | case 'c': | |
8108 | if (name[2] == 'n' && | |
8109 | name[3] == 't' && | |
8110 | name[4] == 'l') | |
8111 | { /* fcntl */ | |
8112 | return -KEY_fcntl; | |
8113 | } | |
8114 | ||
8115 | goto unknown; | |
8116 | ||
8117 | case 'l': | |
8118 | if (name[2] == 'o' && | |
8119 | name[3] == 'c' && | |
8120 | name[4] == 'k') | |
8121 | { /* flock */ | |
8122 | return -KEY_flock; | |
8123 | } | |
8124 | ||
8125 | goto unknown; | |
8126 | ||
8127 | default: | |
8128 | goto unknown; | |
8129 | } | |
8130 | ||
0d863452 RH |
8131 | case 'g': |
8132 | if (name[1] == 'i' && | |
8133 | name[2] == 'v' && | |
8134 | name[3] == 'e' && | |
8135 | name[4] == 'n') | |
8136 | { /* given */ | |
5458a98a | 8137 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_given : 0); |
0d863452 RH |
8138 | } |
8139 | ||
8140 | goto unknown; | |
8141 | ||
4c3bbe0f MHM |
8142 | case 'i': |
8143 | switch (name[1]) | |
8144 | { | |
8145 | case 'n': | |
8146 | if (name[2] == 'd' && | |
8147 | name[3] == 'e' && | |
8148 | name[4] == 'x') | |
8149 | { /* index */ | |
8150 | return -KEY_index; | |
8151 | } | |
8152 | ||
8153 | goto unknown; | |
8154 | ||
8155 | case 'o': | |
8156 | if (name[2] == 'c' && | |
8157 | name[3] == 't' && | |
8158 | name[4] == 'l') | |
8159 | { /* ioctl */ | |
8160 | return -KEY_ioctl; | |
8161 | } | |
8162 | ||
8163 | goto unknown; | |
8164 | ||
8165 | default: | |
8166 | goto unknown; | |
8167 | } | |
8168 | ||
8169 | case 'l': | |
8170 | switch (name[1]) | |
8171 | { | |
8172 | case 'o': | |
8173 | if (name[2] == 'c' && | |
8174 | name[3] == 'a' && | |
8175 | name[4] == 'l') | |
8176 | { /* local */ | |
8177 | return KEY_local; | |
8178 | } | |
8179 | ||
8180 | goto unknown; | |
8181 | ||
8182 | case 's': | |
8183 | if (name[2] == 't' && | |
8184 | name[3] == 'a' && | |
8185 | name[4] == 't') | |
8186 | { /* lstat */ | |
8187 | return -KEY_lstat; | |
8188 | } | |
8189 | ||
8190 | goto unknown; | |
8191 | ||
8192 | default: | |
8193 | goto unknown; | |
8194 | } | |
8195 | ||
8196 | case 'm': | |
8197 | if (name[1] == 'k' && | |
8198 | name[2] == 'd' && | |
8199 | name[3] == 'i' && | |
8200 | name[4] == 'r') | |
8201 | { /* mkdir */ | |
8202 | return -KEY_mkdir; | |
8203 | } | |
8204 | ||
8205 | goto unknown; | |
8206 | ||
8207 | case 'p': | |
8208 | if (name[1] == 'r' && | |
8209 | name[2] == 'i' && | |
8210 | name[3] == 'n' && | |
8211 | name[4] == 't') | |
8212 | { /* print */ | |
8213 | return KEY_print; | |
8214 | } | |
8215 | ||
8216 | goto unknown; | |
8217 | ||
8218 | case 'r': | |
8219 | switch (name[1]) | |
8220 | { | |
8221 | case 'e': | |
8222 | if (name[2] == 's' && | |
8223 | name[3] == 'e' && | |
8224 | name[4] == 't') | |
8225 | { /* reset */ | |
8226 | return -KEY_reset; | |
8227 | } | |
8228 | ||
8229 | goto unknown; | |
8230 | ||
8231 | case 'm': | |
8232 | if (name[2] == 'd' && | |
8233 | name[3] == 'i' && | |
8234 | name[4] == 'r') | |
8235 | { /* rmdir */ | |
8236 | return -KEY_rmdir; | |
8237 | } | |
8238 | ||
8239 | goto unknown; | |
8240 | ||
8241 | default: | |
8242 | goto unknown; | |
8243 | } | |
8244 | ||
8245 | case 's': | |
8246 | switch (name[1]) | |
8247 | { | |
8248 | case 'e': | |
8249 | if (name[2] == 'm' && | |
8250 | name[3] == 'o' && | |
8251 | name[4] == 'p') | |
8252 | { /* semop */ | |
8253 | return -KEY_semop; | |
8254 | } | |
8255 | ||
8256 | goto unknown; | |
8257 | ||
8258 | case 'h': | |
8259 | if (name[2] == 'i' && | |
8260 | name[3] == 'f' && | |
8261 | name[4] == 't') | |
8262 | { /* shift */ | |
8263 | return -KEY_shift; | |
8264 | } | |
8265 | ||
8266 | goto unknown; | |
8267 | ||
8268 | case 'l': | |
8269 | if (name[2] == 'e' && | |
8270 | name[3] == 'e' && | |
8271 | name[4] == 'p') | |
8272 | { /* sleep */ | |
8273 | return -KEY_sleep; | |
8274 | } | |
8275 | ||
8276 | goto unknown; | |
8277 | ||
8278 | case 'p': | |
8279 | if (name[2] == 'l' && | |
8280 | name[3] == 'i' && | |
8281 | name[4] == 't') | |
8282 | { /* split */ | |
8283 | return KEY_split; | |
8284 | } | |
8285 | ||
8286 | goto unknown; | |
8287 | ||
8288 | case 'r': | |
8289 | if (name[2] == 'a' && | |
8290 | name[3] == 'n' && | |
8291 | name[4] == 'd') | |
8292 | { /* srand */ | |
8293 | return -KEY_srand; | |
8294 | } | |
8295 | ||
8296 | goto unknown; | |
8297 | ||
8298 | case 't': | |
952306ac RGS |
8299 | switch (name[2]) |
8300 | { | |
8301 | case 'a': | |
8302 | if (name[3] == 't' && | |
8303 | name[4] == 'e') | |
8304 | { /* state */ | |
5458a98a | 8305 | return (all_keywords || FEATURE_IS_ENABLED("state") ? KEY_state : 0); |
952306ac | 8306 | } |
4c3bbe0f | 8307 | |
952306ac RGS |
8308 | goto unknown; |
8309 | ||
8310 | case 'u': | |
8311 | if (name[3] == 'd' && | |
8312 | name[4] == 'y') | |
8313 | { /* study */ | |
8314 | return KEY_study; | |
8315 | } | |
8316 | ||
8317 | goto unknown; | |
8318 | ||
8319 | default: | |
8320 | goto unknown; | |
8321 | } | |
4c3bbe0f MHM |
8322 | |
8323 | default: | |
8324 | goto unknown; | |
8325 | } | |
8326 | ||
8327 | case 't': | |
8328 | if (name[1] == 'i' && | |
8329 | name[2] == 'm' && | |
8330 | name[3] == 'e' && | |
8331 | name[4] == 's') | |
8332 | { /* times */ | |
8333 | return -KEY_times; | |
8334 | } | |
8335 | ||
8336 | goto unknown; | |
8337 | ||
8338 | case 'u': | |
8339 | switch (name[1]) | |
8340 | { | |
8341 | case 'm': | |
8342 | if (name[2] == 'a' && | |
8343 | name[3] == 's' && | |
8344 | name[4] == 'k') | |
8345 | { /* umask */ | |
8346 | return -KEY_umask; | |
8347 | } | |
8348 | ||
8349 | goto unknown; | |
8350 | ||
8351 | case 'n': | |
8352 | switch (name[2]) | |
8353 | { | |
8354 | case 'd': | |
8355 | if (name[3] == 'e' && | |
8356 | name[4] == 'f') | |
8357 | { /* undef */ | |
8358 | return KEY_undef; | |
8359 | } | |
8360 | ||
8361 | goto unknown; | |
8362 | ||
8363 | case 't': | |
8364 | if (name[3] == 'i') | |
8365 | { | |
8366 | switch (name[4]) | |
8367 | { | |
8368 | case 'e': | |
8369 | { /* untie */ | |
8370 | return KEY_untie; | |
8371 | } | |
8372 | ||
4c3bbe0f MHM |
8373 | case 'l': |
8374 | { /* until */ | |
8375 | return KEY_until; | |
8376 | } | |
8377 | ||
4c3bbe0f MHM |
8378 | default: |
8379 | goto unknown; | |
8380 | } | |
8381 | } | |
8382 | ||
8383 | goto unknown; | |
8384 | ||
8385 | default: | |
8386 | goto unknown; | |
8387 | } | |
8388 | ||
8389 | case 't': | |
8390 | if (name[2] == 'i' && | |
8391 | name[3] == 'm' && | |
8392 | name[4] == 'e') | |
8393 | { /* utime */ | |
8394 | return -KEY_utime; | |
8395 | } | |
8396 | ||
8397 | goto unknown; | |
8398 | ||
8399 | default: | |
8400 | goto unknown; | |
8401 | } | |
8402 | ||
8403 | case 'w': | |
8404 | switch (name[1]) | |
8405 | { | |
8406 | case 'h': | |
8407 | if (name[2] == 'i' && | |
8408 | name[3] == 'l' && | |
8409 | name[4] == 'e') | |
8410 | { /* while */ | |
8411 | return KEY_while; | |
8412 | } | |
8413 | ||
8414 | goto unknown; | |
8415 | ||
8416 | case 'r': | |
8417 | if (name[2] == 'i' && | |
8418 | name[3] == 't' && | |
8419 | name[4] == 'e') | |
8420 | { /* write */ | |
8421 | return -KEY_write; | |
8422 | } | |
8423 | ||
8424 | goto unknown; | |
8425 | ||
8426 | default: | |
8427 | goto unknown; | |
8428 | } | |
8429 | ||
8430 | default: | |
8431 | goto unknown; | |
e2e1dd5a | 8432 | } |
4c3bbe0f MHM |
8433 | |
8434 | case 6: /* 33 tokens of length 6 */ | |
8435 | switch (name[0]) | |
8436 | { | |
8437 | case 'a': | |
8438 | if (name[1] == 'c' && | |
8439 | name[2] == 'c' && | |
8440 | name[3] == 'e' && | |
8441 | name[4] == 'p' && | |
8442 | name[5] == 't') | |
8443 | { /* accept */ | |
8444 | return -KEY_accept; | |
8445 | } | |
8446 | ||
8447 | goto unknown; | |
8448 | ||
8449 | case 'c': | |
8450 | switch (name[1]) | |
8451 | { | |
8452 | case 'a': | |
8453 | if (name[2] == 'l' && | |
8454 | name[3] == 'l' && | |
8455 | name[4] == 'e' && | |
8456 | name[5] == 'r') | |
8457 | { /* caller */ | |
8458 | return -KEY_caller; | |
8459 | } | |
8460 | ||
8461 | goto unknown; | |
8462 | ||
8463 | case 'h': | |
8464 | if (name[2] == 'r' && | |
8465 | name[3] == 'o' && | |
8466 | name[4] == 'o' && | |
8467 | name[5] == 't') | |
8468 | { /* chroot */ | |
8469 | return -KEY_chroot; | |
8470 | } | |
8471 | ||
8472 | goto unknown; | |
8473 | ||
8474 | default: | |
8475 | goto unknown; | |
8476 | } | |
8477 | ||
8478 | case 'd': | |
8479 | if (name[1] == 'e' && | |
8480 | name[2] == 'l' && | |
8481 | name[3] == 'e' && | |
8482 | name[4] == 't' && | |
8483 | name[5] == 'e') | |
8484 | { /* delete */ | |
8485 | return KEY_delete; | |
8486 | } | |
8487 | ||
8488 | goto unknown; | |
8489 | ||
8490 | case 'e': | |
8491 | switch (name[1]) | |
8492 | { | |
8493 | case 'l': | |
8494 | if (name[2] == 's' && | |
8495 | name[3] == 'e' && | |
8496 | name[4] == 'i' && | |
8497 | name[5] == 'f') | |
8498 | { /* elseif */ | |
8499 | if(ckWARN_d(WARN_SYNTAX)) | |
8500 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); | |
8501 | } | |
8502 | ||
8503 | goto unknown; | |
8504 | ||
8505 | case 'x': | |
8506 | if (name[2] == 'i' && | |
8507 | name[3] == 's' && | |
8508 | name[4] == 't' && | |
8509 | name[5] == 's') | |
8510 | { /* exists */ | |
8511 | return KEY_exists; | |
8512 | } | |
8513 | ||
8514 | goto unknown; | |
8515 | ||
8516 | default: | |
8517 | goto unknown; | |
8518 | } | |
8519 | ||
8520 | case 'f': | |
8521 | switch (name[1]) | |
8522 | { | |
8523 | case 'i': | |
8524 | if (name[2] == 'l' && | |
8525 | name[3] == 'e' && | |
8526 | name[4] == 'n' && | |
8527 | name[5] == 'o') | |
8528 | { /* fileno */ | |
8529 | return -KEY_fileno; | |
8530 | } | |
8531 | ||
8532 | goto unknown; | |
8533 | ||
8534 | case 'o': | |
8535 | if (name[2] == 'r' && | |
8536 | name[3] == 'm' && | |
8537 | name[4] == 'a' && | |
8538 | name[5] == 't') | |
8539 | { /* format */ | |
8540 | return KEY_format; | |
8541 | } | |
8542 | ||
8543 | goto unknown; | |
8544 | ||
8545 | default: | |
8546 | goto unknown; | |
8547 | } | |
8548 | ||
8549 | case 'g': | |
8550 | if (name[1] == 'm' && | |
8551 | name[2] == 't' && | |
8552 | name[3] == 'i' && | |
8553 | name[4] == 'm' && | |
8554 | name[5] == 'e') | |
8555 | { /* gmtime */ | |
8556 | return -KEY_gmtime; | |
8557 | } | |
8558 | ||
8559 | goto unknown; | |
8560 | ||
8561 | case 'l': | |
8562 | switch (name[1]) | |
8563 | { | |
8564 | case 'e': | |
8565 | if (name[2] == 'n' && | |
8566 | name[3] == 'g' && | |
8567 | name[4] == 't' && | |
8568 | name[5] == 'h') | |
8569 | { /* length */ | |
8570 | return -KEY_length; | |
8571 | } | |
8572 | ||
8573 | goto unknown; | |
8574 | ||
8575 | case 'i': | |
8576 | if (name[2] == 's' && | |
8577 | name[3] == 't' && | |
8578 | name[4] == 'e' && | |
8579 | name[5] == 'n') | |
8580 | { /* listen */ | |
8581 | return -KEY_listen; | |
8582 | } | |
8583 | ||
8584 | goto unknown; | |
8585 | ||
8586 | default: | |
8587 | goto unknown; | |
8588 | } | |
8589 | ||
8590 | case 'm': | |
8591 | if (name[1] == 's' && | |
8592 | name[2] == 'g') | |
8593 | { | |
8594 | switch (name[3]) | |
8595 | { | |
8596 | case 'c': | |
8597 | if (name[4] == 't' && | |
8598 | name[5] == 'l') | |
8599 | { /* msgctl */ | |
8600 | return -KEY_msgctl; | |
8601 | } | |
8602 | ||
8603 | goto unknown; | |
8604 | ||
8605 | case 'g': | |
8606 | if (name[4] == 'e' && | |
8607 | name[5] == 't') | |
8608 | { /* msgget */ | |
8609 | return -KEY_msgget; | |
8610 | } | |
8611 | ||
8612 | goto unknown; | |
8613 | ||
8614 | case 'r': | |
8615 | if (name[4] == 'c' && | |
8616 | name[5] == 'v') | |
8617 | { /* msgrcv */ | |
8618 | return -KEY_msgrcv; | |
8619 | } | |
8620 | ||
8621 | goto unknown; | |
8622 | ||
8623 | case 's': | |
8624 | if (name[4] == 'n' && | |
8625 | name[5] == 'd') | |
8626 | { /* msgsnd */ | |
8627 | return -KEY_msgsnd; | |
8628 | } | |
8629 | ||
8630 | goto unknown; | |
8631 | ||
8632 | default: | |
8633 | goto unknown; | |
8634 | } | |
8635 | } | |
8636 | ||
8637 | goto unknown; | |
8638 | ||
8639 | case 'p': | |
8640 | if (name[1] == 'r' && | |
8641 | name[2] == 'i' && | |
8642 | name[3] == 'n' && | |
8643 | name[4] == 't' && | |
8644 | name[5] == 'f') | |
8645 | { /* printf */ | |
8646 | return KEY_printf; | |
8647 | } | |
8648 | ||
8649 | goto unknown; | |
8650 | ||
8651 | case 'r': | |
8652 | switch (name[1]) | |
8653 | { | |
8654 | case 'e': | |
8655 | switch (name[2]) | |
8656 | { | |
8657 | case 'n': | |
8658 | if (name[3] == 'a' && | |
8659 | name[4] == 'm' && | |
8660 | name[5] == 'e') | |
8661 | { /* rename */ | |
8662 | return -KEY_rename; | |
8663 | } | |
8664 | ||
8665 | goto unknown; | |
8666 | ||
8667 | case 't': | |
8668 | if (name[3] == 'u' && | |
8669 | name[4] == 'r' && | |
8670 | name[5] == 'n') | |
8671 | { /* return */ | |
8672 | return KEY_return; | |
8673 | } | |
8674 | ||
8675 | goto unknown; | |
8676 | ||
8677 | default: | |
8678 | goto unknown; | |
8679 | } | |
8680 | ||
8681 | case 'i': | |
8682 | if (name[2] == 'n' && | |
8683 | name[3] == 'd' && | |
8684 | name[4] == 'e' && | |
8685 | name[5] == 'x') | |
8686 | { /* rindex */ | |
8687 | return -KEY_rindex; | |
8688 | } | |
8689 | ||
8690 | goto unknown; | |
8691 | ||
8692 | default: | |
8693 | goto unknown; | |
8694 | } | |
8695 | ||
8696 | case 's': | |
8697 | switch (name[1]) | |
8698 | { | |
8699 | case 'c': | |
8700 | if (name[2] == 'a' && | |
8701 | name[3] == 'l' && | |
8702 | name[4] == 'a' && | |
8703 | name[5] == 'r') | |
8704 | { /* scalar */ | |
8705 | return KEY_scalar; | |
8706 | } | |
8707 | ||
8708 | goto unknown; | |
8709 | ||
8710 | case 'e': | |
8711 | switch (name[2]) | |
8712 | { | |
8713 | case 'l': | |
8714 | if (name[3] == 'e' && | |
8715 | name[4] == 'c' && | |
8716 | name[5] == 't') | |
8717 | { /* select */ | |
8718 | return -KEY_select; | |
8719 | } | |
8720 | ||
8721 | goto unknown; | |
8722 | ||
8723 | case 'm': | |
8724 | switch (name[3]) | |
8725 | { | |
8726 | case 'c': | |
8727 | if (name[4] == 't' && | |
8728 | name[5] == 'l') | |
8729 | { /* semctl */ | |
8730 | return -KEY_semctl; | |
8731 | } | |
8732 | ||
8733 | goto unknown; | |
8734 | ||
8735 | case 'g': | |
8736 | if (name[4] == 'e' && | |
8737 | name[5] == 't') | |
8738 | { /* semget */ | |
8739 | return -KEY_semget; | |
8740 | } | |
8741 | ||
8742 | goto unknown; | |
8743 | ||
8744 | default: | |
8745 | goto unknown; | |
8746 | } | |
8747 | ||
8748 | default: | |
8749 | goto unknown; | |
8750 | } | |
8751 | ||
8752 | case 'h': | |
8753 | if (name[2] == 'm') | |
8754 | { | |
8755 | switch (name[3]) | |
8756 | { | |
8757 | case 'c': | |
8758 | if (name[4] == 't' && | |
8759 | name[5] == 'l') | |
8760 | { /* shmctl */ | |
8761 | return -KEY_shmctl; | |
8762 | } | |
8763 | ||
8764 | goto unknown; | |
8765 | ||
8766 | case 'g': | |
8767 | if (name[4] == 'e' && | |
8768 | name[5] == 't') | |
8769 | { /* shmget */ | |
8770 | return -KEY_shmget; | |
8771 | } | |
8772 | ||
8773 | goto unknown; | |
8774 | ||
8775 | default: | |
8776 | goto unknown; | |
8777 | } | |
8778 | } | |
8779 | ||
8780 | goto unknown; | |
8781 | ||
8782 | case 'o': | |
8783 | if (name[2] == 'c' && | |
8784 | name[3] == 'k' && | |
8785 | name[4] == 'e' && | |
8786 | name[5] == 't') | |
8787 | { /* socket */ | |
8788 | return -KEY_socket; | |
8789 | } | |
8790 | ||
8791 | goto unknown; | |
8792 | ||
8793 | case 'p': | |
8794 | if (name[2] == 'l' && | |
8795 | name[3] == 'i' && | |
8796 | name[4] == 'c' && | |
8797 | name[5] == 'e') | |
8798 | { /* splice */ | |
8799 | return -KEY_splice; | |
8800 | } | |
8801 | ||
8802 | goto unknown; | |
8803 | ||
8804 | case 'u': | |
8805 | if (name[2] == 'b' && | |
8806 | name[3] == 's' && | |
8807 | name[4] == 't' && | |
8808 | name[5] == 'r') | |
8809 | { /* substr */ | |
8810 | return -KEY_substr; | |
8811 | } | |
8812 | ||
8813 | goto unknown; | |
8814 | ||
8815 | case 'y': | |
8816 | if (name[2] == 's' && | |
8817 | name[3] == 't' && | |
8818 | name[4] == 'e' && | |
8819 | name[5] == 'm') | |
8820 | { /* system */ | |
8821 | return -KEY_system; | |
8822 | } | |
8823 | ||
8824 | goto unknown; | |
8825 | ||
8826 | default: | |
8827 | goto unknown; | |
8828 | } | |
8829 | ||
8830 | case 'u': | |
8831 | if (name[1] == 'n') | |
8832 | { | |
8833 | switch (name[2]) | |
8834 | { | |
8835 | case 'l': | |
8836 | switch (name[3]) | |
8837 | { | |
8838 | case 'e': | |
8839 | if (name[4] == 's' && | |
8840 | name[5] == 's') | |
8841 | { /* unless */ | |
8842 | return KEY_unless; | |
8843 | } | |
8844 | ||
8845 | goto unknown; | |
8846 | ||
8847 | case 'i': | |
8848 | if (name[4] == 'n' && | |
8849 | name[5] == 'k') | |
8850 | { /* unlink */ | |
8851 | return -KEY_unlink; | |
8852 | } | |
8853 | ||
8854 | goto unknown; | |
8855 | ||
8856 | default: | |
8857 | goto unknown; | |
8858 | } | |
8859 | ||
8860 | case 'p': | |
8861 | if (name[3] == 'a' && | |
8862 | name[4] == 'c' && | |
8863 | name[5] == 'k') | |
8864 | { /* unpack */ | |
8865 | return -KEY_unpack; | |
8866 | } | |
8867 | ||
8868 | goto unknown; | |
8869 | ||
8870 | default: | |
8871 | goto unknown; | |
8872 | } | |
8873 | } | |
8874 | ||
8875 | goto unknown; | |
8876 | ||
8877 | case 'v': | |
8878 | if (name[1] == 'a' && | |
8879 | name[2] == 'l' && | |
8880 | name[3] == 'u' && | |
8881 | name[4] == 'e' && | |
8882 | name[5] == 's') | |
8883 | { /* values */ | |
8884 | return -KEY_values; | |
8885 | } | |
8886 | ||
8887 | goto unknown; | |
8888 | ||
8889 | default: | |
8890 | goto unknown; | |
e2e1dd5a | 8891 | } |
4c3bbe0f | 8892 | |
0d863452 | 8893 | case 7: /* 29 tokens of length 7 */ |
4c3bbe0f MHM |
8894 | switch (name[0]) |
8895 | { | |
8896 | case 'D': | |
8897 | if (name[1] == 'E' && | |
8898 | name[2] == 'S' && | |
8899 | name[3] == 'T' && | |
8900 | name[4] == 'R' && | |
8901 | name[5] == 'O' && | |
8902 | name[6] == 'Y') | |
8903 | { /* DESTROY */ | |
8904 | return KEY_DESTROY; | |
8905 | } | |
8906 | ||
8907 | goto unknown; | |
8908 | ||
8909 | case '_': | |
8910 | if (name[1] == '_' && | |
8911 | name[2] == 'E' && | |
8912 | name[3] == 'N' && | |
8913 | name[4] == 'D' && | |
8914 | name[5] == '_' && | |
8915 | name[6] == '_') | |
8916 | { /* __END__ */ | |
8917 | return KEY___END__; | |
8918 | } | |
8919 | ||
8920 | goto unknown; | |
8921 | ||
8922 | case 'b': | |
8923 | if (name[1] == 'i' && | |
8924 | name[2] == 'n' && | |
8925 | name[3] == 'm' && | |
8926 | name[4] == 'o' && | |
8927 | name[5] == 'd' && | |
8928 | name[6] == 'e') | |
8929 | { /* binmode */ | |
8930 | return -KEY_binmode; | |
8931 | } | |
8932 | ||
8933 | goto unknown; | |
8934 | ||
8935 | case 'c': | |
8936 | if (name[1] == 'o' && | |
8937 | name[2] == 'n' && | |
8938 | name[3] == 'n' && | |
8939 | name[4] == 'e' && | |
8940 | name[5] == 'c' && | |
8941 | name[6] == 't') | |
8942 | { /* connect */ | |
8943 | return -KEY_connect; | |
8944 | } | |
8945 | ||
8946 | goto unknown; | |
8947 | ||
8948 | case 'd': | |
8949 | switch (name[1]) | |
8950 | { | |
8951 | case 'b': | |
8952 | if (name[2] == 'm' && | |
8953 | name[3] == 'o' && | |
8954 | name[4] == 'p' && | |
8955 | name[5] == 'e' && | |
8956 | name[6] == 'n') | |
8957 | { /* dbmopen */ | |
8958 | return -KEY_dbmopen; | |
8959 | } | |
8960 | ||
8961 | goto unknown; | |
8962 | ||
8963 | case 'e': | |
0d863452 RH |
8964 | if (name[2] == 'f') |
8965 | { | |
8966 | switch (name[3]) | |
8967 | { | |
8968 | case 'a': | |
8969 | if (name[4] == 'u' && | |
8970 | name[5] == 'l' && | |
8971 | name[6] == 't') | |
8972 | { /* default */ | |
5458a98a | 8973 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_default : 0); |
0d863452 RH |
8974 | } |
8975 | ||
8976 | goto unknown; | |
8977 | ||
8978 | case 'i': | |
8979 | if (name[4] == 'n' && | |
952306ac RGS |
8980 | name[5] == 'e' && |
8981 | name[6] == 'd') | |
8982 | { /* defined */ | |
8983 | return KEY_defined; | |
8984 | } | |
4c3bbe0f | 8985 | |
952306ac | 8986 | goto unknown; |
4c3bbe0f | 8987 | |
952306ac RGS |
8988 | default: |
8989 | goto unknown; | |
8990 | } | |
0d863452 RH |
8991 | } |
8992 | ||
8993 | goto unknown; | |
8994 | ||
8995 | default: | |
8996 | goto unknown; | |
8997 | } | |
4c3bbe0f MHM |
8998 | |
8999 | case 'f': | |
9000 | if (name[1] == 'o' && | |
9001 | name[2] == 'r' && | |
9002 | name[3] == 'e' && | |
9003 | name[4] == 'a' && | |
9004 | name[5] == 'c' && | |
9005 | name[6] == 'h') | |
9006 | { /* foreach */ | |
9007 | return KEY_foreach; | |
9008 | } | |
9009 | ||
9010 | goto unknown; | |
9011 | ||
9012 | case 'g': | |
9013 | if (name[1] == 'e' && | |
9014 | name[2] == 't' && | |
9015 | name[3] == 'p') | |
9016 | { | |
9017 | switch (name[4]) | |
9018 | { | |
9019 | case 'g': | |
9020 | if (name[5] == 'r' && | |
9021 | name[6] == 'p') | |
9022 | { /* getpgrp */ | |
9023 | return -KEY_getpgrp; | |
9024 | } | |
9025 | ||
9026 | goto unknown; | |
9027 | ||
9028 | case 'p': | |
9029 | if (name[5] == 'i' && | |
9030 | name[6] == 'd') | |
9031 | { /* getppid */ | |
9032 | return -KEY_getppid; | |
9033 | } | |
9034 | ||
9035 | goto unknown; | |
9036 | ||
9037 | default: | |
9038 | goto unknown; | |
9039 | } | |
9040 | } | |
9041 | ||
9042 | goto unknown; | |
9043 | ||
9044 | case 'l': | |
9045 | if (name[1] == 'c' && | |
9046 | name[2] == 'f' && | |
9047 | name[3] == 'i' && | |
9048 | name[4] == 'r' && | |
9049 | name[5] == 's' && | |
9050 | name[6] == 't') | |
9051 | { /* lcfirst */ | |
9052 | return -KEY_lcfirst; | |
9053 | } | |
9054 | ||
9055 | goto unknown; | |
9056 | ||
9057 | case 'o': | |
9058 | if (name[1] == 'p' && | |
9059 | name[2] == 'e' && | |
9060 | name[3] == 'n' && | |
9061 | name[4] == 'd' && | |
9062 | name[5] == 'i' && | |
9063 | name[6] == 'r') | |
9064 | { /* opendir */ | |
9065 | return -KEY_opendir; | |
9066 | } | |
9067 | ||
9068 | goto unknown; | |
9069 | ||
9070 | case 'p': | |
9071 | if (name[1] == 'a' && | |
9072 | name[2] == 'c' && | |
9073 | name[3] == 'k' && | |
9074 | name[4] == 'a' && | |
9075 | name[5] == 'g' && | |
9076 | name[6] == 'e') | |
9077 | { /* package */ | |
9078 | return KEY_package; | |
9079 | } | |
9080 | ||
9081 | goto unknown; | |
9082 | ||
9083 | case 'r': | |
9084 | if (name[1] == 'e') | |
9085 | { | |
9086 | switch (name[2]) | |
9087 | { | |
9088 | case 'a': | |
9089 | if (name[3] == 'd' && | |
9090 | name[4] == 'd' && | |
9091 | name[5] == 'i' && | |
9092 | name[6] == 'r') | |
9093 | { /* readdir */ | |
9094 | return -KEY_readdir; | |
9095 | } | |
9096 | ||
9097 | goto unknown; | |
9098 | ||
9099 | case 'q': | |
9100 | if (name[3] == 'u' && | |
9101 | name[4] == 'i' && | |
9102 | name[5] == 'r' && | |
9103 | name[6] == 'e') | |
9104 | { /* require */ | |
9105 | return KEY_require; | |
9106 | } | |
9107 | ||
9108 | goto unknown; | |
9109 | ||
9110 | case 'v': | |
9111 | if (name[3] == 'e' && | |
9112 | name[4] == 'r' && | |
9113 | name[5] == 's' && | |
9114 | name[6] == 'e') | |
9115 | { /* reverse */ | |
9116 | return -KEY_reverse; | |
9117 | } | |
9118 | ||
9119 | goto unknown; | |
9120 | ||
9121 | default: | |
9122 | goto unknown; | |
9123 | } | |
9124 | } | |
9125 | ||
9126 | goto unknown; | |
9127 | ||
9128 | case 's': | |
9129 | switch (name[1]) | |
9130 | { | |
9131 | case 'e': | |
9132 | switch (name[2]) | |
9133 | { | |
9134 | case 'e': | |
9135 | if (name[3] == 'k' && | |
9136 | name[4] == 'd' && | |
9137 | name[5] == 'i' && | |
9138 | name[6] == 'r') | |
9139 | { /* seekdir */ | |
9140 | return -KEY_seekdir; | |
9141 | } | |
9142 | ||
9143 | goto unknown; | |
9144 | ||
9145 | case 't': | |
9146 | if (name[3] == 'p' && | |
9147 | name[4] == 'g' && | |
9148 | name[5] == 'r' && | |
9149 | name[6] == 'p') | |
9150 | { /* setpgrp */ | |
9151 | return -KEY_setpgrp; | |
9152 | } | |
9153 | ||
9154 | goto unknown; | |
9155 | ||
9156 | default: | |
9157 | goto unknown; | |
9158 | } | |
9159 | ||
9160 | case 'h': | |
9161 | if (name[2] == 'm' && | |
9162 | name[3] == 'r' && | |
9163 | name[4] == 'e' && | |
9164 | name[5] == 'a' && | |
9165 | name[6] == 'd') | |
9166 | { /* shmread */ | |
9167 | return -KEY_shmread; | |
9168 | } | |
9169 | ||
9170 | goto unknown; | |
9171 | ||
9172 | case 'p': | |
9173 | if (name[2] == 'r' && | |
9174 | name[3] == 'i' && | |
9175 | name[4] == 'n' && | |
9176 | name[5] == 't' && | |
9177 | name[6] == 'f') | |
9178 | { /* sprintf */ | |
9179 | return -KEY_sprintf; | |
9180 | } | |
9181 | ||
9182 | goto unknown; | |
9183 | ||
9184 | case 'y': | |
9185 | switch (name[2]) | |
9186 | { | |
9187 | case 'm': | |
9188 | if (name[3] == 'l' && | |
9189 | name[4] == 'i' && | |
9190 | name[5] == 'n' && | |
9191 | name[6] == 'k') | |
9192 | { /* symlink */ | |
9193 | return -KEY_symlink; | |
9194 | } | |
9195 | ||
9196 | goto unknown; | |
9197 | ||
9198 | case 's': | |
9199 | switch (name[3]) | |
9200 | { | |
9201 | case 'c': | |
9202 | if (name[4] == 'a' && | |
9203 | name[5] == 'l' && | |
9204 | name[6] == 'l') | |
9205 | { /* syscall */ | |
9206 | return -KEY_syscall; | |
9207 | } | |
9208 | ||
9209 | goto unknown; | |
9210 | ||
9211 | case 'o': | |
9212 | if (name[4] == 'p' && | |
9213 | name[5] == 'e' && | |
9214 | name[6] == 'n') | |
9215 | { /* sysopen */ | |
9216 | return -KEY_sysopen; | |
9217 | } | |
9218 | ||
9219 | goto unknown; | |
9220 | ||
9221 | case 'r': | |
9222 | if (name[4] == 'e' && | |
9223 | name[5] == 'a' && | |
9224 | name[6] == 'd') | |
9225 | { /* sysread */ | |
9226 | return -KEY_sysread; | |
9227 | } | |
9228 | ||
9229 | goto unknown; | |
9230 | ||
9231 | case 's': | |
9232 | if (name[4] == 'e' && | |
9233 | name[5] == 'e' && | |
9234 | name[6] == 'k') | |
9235 | { /* sysseek */ | |
9236 | return -KEY_sysseek; | |
9237 | } | |
9238 | ||
9239 | goto unknown; | |
9240 | ||
9241 | default: | |
9242 | goto unknown; | |
9243 | } | |
9244 | ||
9245 | default: | |
9246 | goto unknown; | |
9247 | } | |
9248 | ||
9249 | default: | |
9250 | goto unknown; | |
9251 | } | |
9252 | ||
9253 | case 't': | |
9254 | if (name[1] == 'e' && | |
9255 | name[2] == 'l' && | |
9256 | name[3] == 'l' && | |
9257 | name[4] == 'd' && | |
9258 | name[5] == 'i' && | |
9259 | name[6] == 'r') | |
9260 | { /* telldir */ | |
9261 | return -KEY_telldir; | |
9262 | } | |
9263 | ||
9264 | goto unknown; | |
9265 | ||
9266 | case 'u': | |
9267 | switch (name[1]) | |
9268 | { | |
9269 | case 'c': | |
9270 | if (name[2] == 'f' && | |
9271 | name[3] == 'i' && | |
9272 | name[4] == 'r' && | |
9273 | name[5] == 's' && | |
9274 | name[6] == 't') | |
9275 | { /* ucfirst */ | |
9276 | return -KEY_ucfirst; | |
9277 | } | |
9278 | ||
9279 | goto unknown; | |
9280 | ||
9281 | case 'n': | |
9282 | if (name[2] == 's' && | |
9283 | name[3] == 'h' && | |
9284 | name[4] == 'i' && | |
9285 | name[5] == 'f' && | |
9286 | name[6] == 't') | |
9287 | { /* unshift */ | |
9288 | return -KEY_unshift; | |
9289 | } | |
9290 | ||
9291 | goto unknown; | |
9292 | ||
9293 | default: | |
9294 | goto unknown; | |
9295 | } | |
9296 | ||
9297 | case 'w': | |
9298 | if (name[1] == 'a' && | |
9299 | name[2] == 'i' && | |
9300 | name[3] == 't' && | |
9301 | name[4] == 'p' && | |
9302 | name[5] == 'i' && | |
9303 | name[6] == 'd') | |
9304 | { /* waitpid */ | |
9305 | return -KEY_waitpid; | |
9306 | } | |
9307 | ||
9308 | goto unknown; | |
9309 | ||
9310 | default: | |
9311 | goto unknown; | |
9312 | } | |
9313 | ||
9314 | case 8: /* 26 tokens of length 8 */ | |
9315 | switch (name[0]) | |
9316 | { | |
9317 | case 'A': | |
9318 | if (name[1] == 'U' && | |
9319 | name[2] == 'T' && | |
9320 | name[3] == 'O' && | |
9321 | name[4] == 'L' && | |
9322 | name[5] == 'O' && | |
9323 | name[6] == 'A' && | |
9324 | name[7] == 'D') | |
9325 | { /* AUTOLOAD */ | |
9326 | return KEY_AUTOLOAD; | |
9327 | } | |
9328 | ||
9329 | goto unknown; | |
9330 | ||
9331 | case '_': | |
9332 | if (name[1] == '_') | |
9333 | { | |
9334 | switch (name[2]) | |
9335 | { | |
9336 | case 'D': | |
9337 | if (name[3] == 'A' && | |
9338 | name[4] == 'T' && | |
9339 | name[5] == 'A' && | |
9340 | name[6] == '_' && | |
9341 | name[7] == '_') | |
9342 | { /* __DATA__ */ | |
9343 | return KEY___DATA__; | |
9344 | } | |
9345 | ||
9346 | goto unknown; | |
9347 | ||
9348 | case 'F': | |
9349 | if (name[3] == 'I' && | |
9350 | name[4] == 'L' && | |
9351 | name[5] == 'E' && | |
9352 | name[6] == '_' && | |
9353 | name[7] == '_') | |
9354 | { /* __FILE__ */ | |
9355 | return -KEY___FILE__; | |
9356 | } | |
9357 | ||
9358 | goto unknown; | |
9359 | ||
9360 | case 'L': | |
9361 | if (name[3] == 'I' && | |
9362 | name[4] == 'N' && | |
9363 | name[5] == 'E' && | |
9364 | name[6] == '_' && | |
9365 | name[7] == '_') | |
9366 | { /* __LINE__ */ | |
9367 | return -KEY___LINE__; | |
9368 | } | |
9369 | ||
9370 | goto unknown; | |
9371 | ||
9372 | default: | |
9373 | goto unknown; | |
9374 | } | |
9375 | } | |
9376 | ||
9377 | goto unknown; | |
9378 | ||
9379 | case 'c': | |
9380 | switch (name[1]) | |
9381 | { | |
9382 | case 'l': | |
9383 | if (name[2] == 'o' && | |
9384 | name[3] == 's' && | |
9385 | name[4] == 'e' && | |
9386 | name[5] == 'd' && | |
9387 | name[6] == 'i' && | |
9388 | name[7] == 'r') | |
9389 | { /* closedir */ | |
9390 | return -KEY_closedir; | |
9391 | } | |
9392 | ||
9393 | goto unknown; | |
9394 | ||
9395 | case 'o': | |
9396 | if (name[2] == 'n' && | |
9397 | name[3] == 't' && | |
9398 | name[4] == 'i' && | |
9399 | name[5] == 'n' && | |
9400 | name[6] == 'u' && | |
9401 | name[7] == 'e') | |
9402 | { /* continue */ | |
9403 | return -KEY_continue; | |
9404 | } | |
9405 | ||
9406 | goto unknown; | |
9407 | ||
9408 | default: | |
9409 | goto unknown; | |
9410 | } | |
9411 | ||
9412 | case 'd': | |
9413 | if (name[1] == 'b' && | |
9414 | name[2] == 'm' && | |
9415 | name[3] == 'c' && | |
9416 | name[4] == 'l' && | |
9417 | name[5] == 'o' && | |
9418 | name[6] == 's' && | |
9419 | name[7] == 'e') | |
9420 | { /* dbmclose */ | |
9421 | return -KEY_dbmclose; | |
9422 | } | |
9423 | ||
9424 | goto unknown; | |
9425 | ||
9426 | case 'e': | |
9427 | if (name[1] == 'n' && | |
9428 | name[2] == 'd') | |
9429 | { | |
9430 | switch (name[3]) | |
9431 | { | |
9432 | case 'g': | |
9433 | if (name[4] == 'r' && | |
9434 | name[5] == 'e' && | |
9435 | name[6] == 'n' && | |
9436 | name[7] == 't') | |
9437 | { /* endgrent */ | |
9438 | return -KEY_endgrent; | |
9439 | } | |
9440 | ||
9441 | goto unknown; | |
9442 | ||
9443 | case 'p': | |
9444 | if (name[4] == 'w' && | |
9445 | name[5] == 'e' && | |
9446 | name[6] == 'n' && | |
9447 | name[7] == 't') | |
9448 | { /* endpwent */ | |
9449 | return -KEY_endpwent; | |
9450 | } | |
9451 | ||
9452 | goto unknown; | |
9453 | ||
9454 | default: | |
9455 | goto unknown; | |
9456 | } | |
9457 | } | |
9458 | ||
9459 | goto unknown; | |
9460 | ||
9461 | case 'f': | |
9462 | if (name[1] == 'o' && | |
9463 | name[2] == 'r' && | |
9464 | name[3] == 'm' && | |
9465 | name[4] == 'l' && | |
9466 | name[5] == 'i' && | |
9467 | name[6] == 'n' && | |
9468 | name[7] == 'e') | |
9469 | { /* formline */ | |
9470 | return -KEY_formline; | |
9471 | } | |
9472 | ||
9473 | goto unknown; | |
9474 | ||
9475 | case 'g': | |
9476 | if (name[1] == 'e' && | |
9477 | name[2] == 't') | |
9478 | { | |
9479 | switch (name[3]) | |
9480 | { | |
9481 | case 'g': | |
9482 | if (name[4] == 'r') | |
9483 | { | |
9484 | switch (name[5]) | |
9485 | { | |
9486 | case 'e': | |
9487 | if (name[6] == 'n' && | |
9488 | name[7] == 't') | |
9489 | { /* getgrent */ | |
9490 | return -KEY_getgrent; | |
9491 | } | |
9492 | ||
9493 | goto unknown; | |
9494 | ||
9495 | case 'g': | |
9496 | if (name[6] == 'i' && | |
9497 | name[7] == 'd') | |
9498 | { /* getgrgid */ | |
9499 | return -KEY_getgrgid; | |
9500 | } | |
9501 | ||
9502 | goto unknown; | |
9503 | ||
9504 | case 'n': | |
9505 | if (name[6] == 'a' && | |
9506 | name[7] == 'm') | |
9507 | { /* getgrnam */ | |
9508 | return -KEY_getgrnam; | |
9509 | } | |
9510 | ||
9511 | goto unknown; | |
9512 | ||
9513 | default: | |
9514 | goto unknown; | |
9515 | } | |
9516 | } | |
9517 | ||
9518 | goto unknown; | |
9519 | ||
9520 | case 'l': | |
9521 | if (name[4] == 'o' && | |
9522 | name[5] == 'g' && | |
9523 | name[6] == 'i' && | |
9524 | name[7] == 'n') | |
9525 | { /* getlogin */ | |
9526 | return -KEY_getlogin; | |
9527 | } | |
9528 | ||
9529 | goto unknown; | |
9530 | ||
9531 | case 'p': | |
9532 | if (name[4] == 'w') | |
9533 | { | |
9534 | switch (name[5]) | |
9535 | { | |
9536 | case 'e': | |
9537 | if (name[6] == 'n' && | |
9538 | name[7] == 't') | |
9539 | { /* getpwent */ | |
9540 | return -KEY_getpwent; | |
9541 | } | |
9542 | ||
9543 | goto unknown; | |
9544 | ||
9545 | case 'n': | |
9546 | if (name[6] == 'a' && | |
9547 | name[7] == 'm') | |
9548 | { /* getpwnam */ | |
9549 | return -KEY_getpwnam; | |
9550 | } | |
9551 | ||
9552 | goto unknown; | |
9553 | ||
9554 | case 'u': | |
9555 | if (name[6] == 'i' && | |
9556 | name[7] == 'd') | |
9557 | { /* getpwuid */ | |
9558 | return -KEY_getpwuid; | |
9559 | } | |
9560 | ||
9561 | goto unknown; | |
9562 | ||
9563 | default: | |
9564 | goto unknown; | |
9565 | } | |
9566 | } | |
9567 | ||
9568 | goto unknown; | |
9569 | ||
9570 | default: | |
9571 | goto unknown; | |
9572 | } | |
9573 | } | |
9574 | ||
9575 | goto unknown; | |
9576 | ||
9577 | case 'r': | |
9578 | if (name[1] == 'e' && | |
9579 | name[2] == 'a' && | |
9580 | name[3] == 'd') | |
9581 | { | |
9582 | switch (name[4]) | |
9583 | { | |
9584 | case 'l': | |
9585 | if (name[5] == 'i' && | |
9586 | name[6] == 'n') | |
9587 | { | |
9588 | switch (name[7]) | |
9589 | { | |
9590 | case 'e': | |
9591 | { /* readline */ | |
9592 | return -KEY_readline; | |
9593 | } | |
9594 | ||
4c3bbe0f MHM |
9595 | case 'k': |
9596 | { /* readlink */ | |
9597 | return -KEY_readlink; | |
9598 | } | |
9599 | ||
4c3bbe0f MHM |
9600 | default: |
9601 | goto unknown; | |
9602 | } | |
9603 | } | |
9604 | ||
9605 | goto unknown; | |
9606 | ||
9607 | case 'p': | |
9608 | if (name[5] == 'i' && | |
9609 | name[6] == 'p' && | |
9610 | name[7] == 'e') | |
9611 | { /* readpipe */ | |
9612 | return -KEY_readpipe; | |
9613 | } | |
9614 | ||
9615 | goto unknown; | |
9616 | ||
9617 | default: | |
9618 | goto unknown; | |
9619 | } | |
9620 | } | |
9621 | ||
9622 | goto unknown; | |
9623 | ||
9624 | case 's': | |
9625 | switch (name[1]) | |
9626 | { | |
9627 | case 'e': | |
9628 | if (name[2] == 't') | |
9629 | { | |
9630 | switch (name[3]) | |
9631 | { | |
9632 | case 'g': | |
9633 | if (name[4] == 'r' && | |
9634 | name[5] == 'e' && | |
9635 | name[6] == 'n' && | |
9636 | name[7] == 't') | |
9637 | { /* setgrent */ | |
9638 | return -KEY_setgrent; | |
9639 | } | |
9640 | ||
9641 | goto unknown; | |
9642 | ||
9643 | case 'p': | |
9644 | if (name[4] == 'w' && | |
9645 | name[5] == 'e' && | |
9646 | name[6] == 'n' && | |
9647 | name[7] == 't') | |
9648 | { /* setpwent */ | |
9649 | return -KEY_setpwent; | |
9650 | } | |
9651 | ||
9652 | goto unknown; | |
9653 | ||
9654 | default: | |
9655 | goto unknown; | |
9656 | } | |
9657 | } | |
9658 | ||
9659 | goto unknown; | |
9660 | ||
9661 | case 'h': | |
9662 | switch (name[2]) | |
9663 | { | |
9664 | case 'm': | |
9665 | if (name[3] == 'w' && | |
9666 | name[4] == 'r' && | |
9667 | name[5] == 'i' && | |
9668 | name[6] == 't' && | |
9669 | name[7] == 'e') | |
9670 | { /* shmwrite */ | |
9671 | return -KEY_shmwrite; | |
9672 | } | |
9673 | ||
9674 | goto unknown; | |
9675 | ||
9676 | case 'u': | |
9677 | if (name[3] == 't' && | |
9678 | name[4] == 'd' && | |
9679 | name[5] == 'o' && | |
9680 | name[6] == 'w' && | |
9681 | name[7] == 'n') | |
9682 | { /* shutdown */ | |
9683 | return -KEY_shutdown; | |
9684 | } | |
9685 | ||
9686 | goto unknown; | |
9687 | ||
9688 | default: | |
9689 | goto unknown; | |
9690 | } | |
9691 | ||
9692 | case 'y': | |
9693 | if (name[2] == 's' && | |
9694 | name[3] == 'w' && | |
9695 | name[4] == 'r' && | |
9696 | name[5] == 'i' && | |
9697 | name[6] == 't' && | |
9698 | name[7] == 'e') | |
9699 | { /* syswrite */ | |
9700 | return -KEY_syswrite; | |
9701 | } | |
9702 | ||
9703 | goto unknown; | |
9704 | ||
9705 | default: | |
9706 | goto unknown; | |
9707 | } | |
9708 | ||
9709 | case 't': | |
9710 | if (name[1] == 'r' && | |
9711 | name[2] == 'u' && | |
9712 | name[3] == 'n' && | |
9713 | name[4] == 'c' && | |
9714 | name[5] == 'a' && | |
9715 | name[6] == 't' && | |
9716 | name[7] == 'e') | |
9717 | { /* truncate */ | |
9718 | return -KEY_truncate; | |
9719 | } | |
9720 | ||
9721 | goto unknown; | |
9722 | ||
9723 | default: | |
9724 | goto unknown; | |
9725 | } | |
9726 | ||
3c10abe3 | 9727 | case 9: /* 9 tokens of length 9 */ |
4c3bbe0f MHM |
9728 | switch (name[0]) |
9729 | { | |
3c10abe3 AG |
9730 | case 'U': |
9731 | if (name[1] == 'N' && | |
9732 | name[2] == 'I' && | |
9733 | name[3] == 'T' && | |
9734 | name[4] == 'C' && | |
9735 | name[5] == 'H' && | |
9736 | name[6] == 'E' && | |
9737 | name[7] == 'C' && | |
9738 | name[8] == 'K') | |
9739 | { /* UNITCHECK */ | |
9740 | return KEY_UNITCHECK; | |
9741 | } | |
9742 | ||
9743 | goto unknown; | |
9744 | ||
4c3bbe0f MHM |
9745 | case 'e': |
9746 | if (name[1] == 'n' && | |
9747 | name[2] == 'd' && | |
9748 | name[3] == 'n' && | |
9749 | name[4] == 'e' && | |
9750 | name[5] == 't' && | |
9751 | name[6] == 'e' && | |
9752 | name[7] == 'n' && | |
9753 | name[8] == 't') | |
9754 | { /* endnetent */ | |
9755 | return -KEY_endnetent; | |
9756 | } | |
9757 | ||
9758 | goto unknown; | |
9759 | ||
9760 | case 'g': | |
9761 | if (name[1] == 'e' && | |
9762 | name[2] == 't' && | |
9763 | name[3] == 'n' && | |
9764 | name[4] == 'e' && | |
9765 | name[5] == 't' && | |
9766 | name[6] == 'e' && | |
9767 | name[7] == 'n' && | |
9768 | name[8] == 't') | |
9769 | { /* getnetent */ | |
9770 | return -KEY_getnetent; | |
9771 | } | |
9772 | ||
9773 | goto unknown; | |
9774 | ||
9775 | case 'l': | |
9776 | if (name[1] == 'o' && | |
9777 | name[2] == 'c' && | |
9778 | name[3] == 'a' && | |
9779 | name[4] == 'l' && | |
9780 | name[5] == 't' && | |
9781 | name[6] == 'i' && | |
9782 | name[7] == 'm' && | |
9783 | name[8] == 'e') | |
9784 | { /* localtime */ | |
9785 | return -KEY_localtime; | |
9786 | } | |
9787 | ||
9788 | goto unknown; | |
9789 | ||
9790 | case 'p': | |
9791 | if (name[1] == 'r' && | |
9792 | name[2] == 'o' && | |
9793 | name[3] == 't' && | |
9794 | name[4] == 'o' && | |
9795 | name[5] == 't' && | |
9796 | name[6] == 'y' && | |
9797 | name[7] == 'p' && | |
9798 | name[8] == 'e') | |
9799 | { /* prototype */ | |
9800 | return KEY_prototype; | |
9801 | } | |
9802 | ||
9803 | goto unknown; | |
9804 | ||
9805 | case 'q': | |
9806 | if (name[1] == 'u' && | |
9807 | name[2] == 'o' && | |
9808 | name[3] == 't' && | |
9809 | name[4] == 'e' && | |
9810 | name[5] == 'm' && | |
9811 | name[6] == 'e' && | |
9812 | name[7] == 't' && | |
9813 | name[8] == 'a') | |
9814 | { /* quotemeta */ | |
9815 | return -KEY_quotemeta; | |
9816 | } | |
9817 | ||
9818 | goto unknown; | |
9819 | ||
9820 | case 'r': | |
9821 | if (name[1] == 'e' && | |
9822 | name[2] == 'w' && | |
9823 | name[3] == 'i' && | |
9824 | name[4] == 'n' && | |
9825 | name[5] == 'd' && | |
9826 | name[6] == 'd' && | |
9827 | name[7] == 'i' && | |
9828 | name[8] == 'r') | |
9829 | { /* rewinddir */ | |
9830 | return -KEY_rewinddir; | |
9831 | } | |
9832 | ||
9833 | goto unknown; | |
9834 | ||
9835 | case 's': | |
9836 | if (name[1] == 'e' && | |
9837 | name[2] == 't' && | |
9838 | name[3] == 'n' && | |
9839 | name[4] == 'e' && | |
9840 | name[5] == 't' && | |
9841 | name[6] == 'e' && | |
9842 | name[7] == 'n' && | |
9843 | name[8] == 't') | |
9844 | { /* setnetent */ | |
9845 | return -KEY_setnetent; | |
9846 | } | |
9847 | ||
9848 | goto unknown; | |
9849 | ||
9850 | case 'w': | |
9851 | if (name[1] == 'a' && | |
9852 | name[2] == 'n' && | |
9853 | name[3] == 't' && | |
9854 | name[4] == 'a' && | |
9855 | name[5] == 'r' && | |
9856 | name[6] == 'r' && | |
9857 | name[7] == 'a' && | |
9858 | name[8] == 'y') | |
9859 | { /* wantarray */ | |
9860 | return -KEY_wantarray; | |
9861 | } | |
9862 | ||
9863 | goto unknown; | |
9864 | ||
9865 | default: | |
9866 | goto unknown; | |
9867 | } | |
9868 | ||
9869 | case 10: /* 9 tokens of length 10 */ | |
9870 | switch (name[0]) | |
9871 | { | |
9872 | case 'e': | |
9873 | if (name[1] == 'n' && | |
9874 | name[2] == 'd') | |
9875 | { | |
9876 | switch (name[3]) | |
9877 | { | |
9878 | case 'h': | |
9879 | if (name[4] == 'o' && | |
9880 | name[5] == 's' && | |
9881 | name[6] == 't' && | |
9882 | name[7] == 'e' && | |
9883 | name[8] == 'n' && | |
9884 | name[9] == 't') | |
9885 | { /* endhostent */ | |
9886 | return -KEY_endhostent; | |
9887 | } | |
9888 | ||
9889 | goto unknown; | |
9890 | ||
9891 | case 's': | |
9892 | if (name[4] == 'e' && | |
9893 | name[5] == 'r' && | |
9894 | name[6] == 'v' && | |
9895 | name[7] == 'e' && | |
9896 | name[8] == 'n' && | |
9897 | name[9] == 't') | |
9898 | { /* endservent */ | |
9899 | return -KEY_endservent; | |
9900 | } | |
9901 | ||
9902 | goto unknown; | |
9903 | ||
9904 | default: | |
9905 | goto unknown; | |
9906 | } | |
9907 | } | |
9908 | ||
9909 | goto unknown; | |
9910 | ||
9911 | case 'g': | |
9912 | if (name[1] == 'e' && | |
9913 | name[2] == 't') | |
9914 | { | |
9915 | switch (name[3]) | |
9916 | { | |
9917 | case 'h': | |
9918 | if (name[4] == 'o' && | |
9919 | name[5] == 's' && | |
9920 | name[6] == 't' && | |
9921 | name[7] == 'e' && | |
9922 | name[8] == 'n' && | |
9923 | name[9] == 't') | |
9924 | { /* gethostent */ | |
9925 | return -KEY_gethostent; | |
9926 | } | |
9927 | ||
9928 | goto unknown; | |
9929 | ||
9930 | case 's': | |
9931 | switch (name[4]) | |
9932 | { | |
9933 | case 'e': | |
9934 | if (name[5] == 'r' && | |
9935 | name[6] == 'v' && | |
9936 | name[7] == 'e' && | |
9937 | name[8] == 'n' && | |
9938 | name[9] == 't') | |
9939 | { /* getservent */ | |
9940 | return -KEY_getservent; | |
9941 | } | |
9942 | ||
9943 | goto unknown; | |
9944 | ||
9945 | case 'o': | |
9946 | if (name[5] == 'c' && | |
9947 | name[6] == 'k' && | |
9948 | name[7] == 'o' && | |
9949 | name[8] == 'p' && | |
9950 | name[9] == 't') | |
9951 | { /* getsockopt */ | |
9952 | return -KEY_getsockopt; | |
9953 | } | |
9954 | ||
9955 | goto unknown; | |
9956 | ||
9957 | default: | |
9958 | goto unknown; | |
9959 | } | |
9960 | ||
9961 | default: | |
9962 | goto unknown; | |
9963 | } | |
9964 | } | |
9965 | ||
9966 | goto unknown; | |
9967 | ||
9968 | case 's': | |
9969 | switch (name[1]) | |
9970 | { | |
9971 | case 'e': | |
9972 | if (name[2] == 't') | |
9973 | { | |
9974 | switch (name[3]) | |
9975 | { | |
9976 | case 'h': | |
9977 | if (name[4] == 'o' && | |
9978 | name[5] == 's' && | |
9979 | name[6] == 't' && | |
9980 | name[7] == 'e' && | |
9981 | name[8] == 'n' && | |
9982 | name[9] == 't') | |
9983 | { /* sethostent */ | |
9984 | return -KEY_sethostent; | |
9985 | } | |
9986 | ||
9987 | goto unknown; | |
9988 | ||
9989 | case 's': | |
9990 | switch (name[4]) | |
9991 | { | |
9992 | case 'e': | |
9993 | if (name[5] == 'r' && | |
9994 | name[6] == 'v' && | |
9995 | name[7] == 'e' && | |
9996 | name[8] == 'n' && | |
9997 | name[9] == 't') | |
9998 | { /* setservent */ | |
9999 | return -KEY_setservent; | |
10000 | } | |
10001 | ||
10002 | goto unknown; | |
10003 | ||
10004 | case 'o': | |
10005 | if (name[5] == 'c' && | |
10006 | name[6] == 'k' && | |
10007 | name[7] == 'o' && | |
10008 | name[8] == 'p' && | |
10009 | name[9] == 't') | |
10010 | { /* setsockopt */ | |
10011 | return -KEY_setsockopt; | |
10012 | } | |
10013 | ||
10014 | goto unknown; | |
10015 | ||
10016 | default: | |
10017 | goto unknown; | |
10018 | } | |
10019 | ||
10020 | default: | |
10021 | goto unknown; | |
10022 | } | |
10023 | } | |
10024 | ||
10025 | goto unknown; | |
10026 | ||
10027 | case 'o': | |
10028 | if (name[2] == 'c' && | |
10029 | name[3] == 'k' && | |
10030 | name[4] == 'e' && | |
10031 | name[5] == 't' && | |
10032 | name[6] == 'p' && | |
10033 | name[7] == 'a' && | |
10034 | name[8] == 'i' && | |
10035 | name[9] == 'r') | |
10036 | { /* socketpair */ | |
10037 | return -KEY_socketpair; | |
10038 | } | |
10039 | ||
10040 | goto unknown; | |
10041 | ||
10042 | default: | |
10043 | goto unknown; | |
10044 | } | |
10045 | ||
10046 | default: | |
10047 | goto unknown; | |
e2e1dd5a | 10048 | } |
4c3bbe0f MHM |
10049 | |
10050 | case 11: /* 8 tokens of length 11 */ | |
10051 | switch (name[0]) | |
10052 | { | |
10053 | case '_': | |
10054 | if (name[1] == '_' && | |
10055 | name[2] == 'P' && | |
10056 | name[3] == 'A' && | |
10057 | name[4] == 'C' && | |
10058 | name[5] == 'K' && | |
10059 | name[6] == 'A' && | |
10060 | name[7] == 'G' && | |
10061 | name[8] == 'E' && | |
10062 | name[9] == '_' && | |
10063 | name[10] == '_') | |
10064 | { /* __PACKAGE__ */ | |
10065 | return -KEY___PACKAGE__; | |
10066 | } | |
10067 | ||
10068 | goto unknown; | |
10069 | ||
10070 | case 'e': | |
10071 | if (name[1] == 'n' && | |
10072 | name[2] == 'd' && | |
10073 | name[3] == 'p' && | |
10074 | name[4] == 'r' && | |
10075 | name[5] == 'o' && | |
10076 | name[6] == 't' && | |
10077 | name[7] == 'o' && | |
10078 | name[8] == 'e' && | |
10079 | name[9] == 'n' && | |
10080 | name[10] == 't') | |
10081 | { /* endprotoent */ | |
10082 | return -KEY_endprotoent; | |
10083 | } | |
10084 | ||
10085 | goto unknown; | |
10086 | ||
10087 | case 'g': | |
10088 | if (name[1] == 'e' && | |
10089 | name[2] == 't') | |
10090 | { | |
10091 | switch (name[3]) | |
10092 | { | |
10093 | case 'p': | |
10094 | switch (name[4]) | |
10095 | { | |
10096 | case 'e': | |
10097 | if (name[5] == 'e' && | |
10098 | name[6] == 'r' && | |
10099 | name[7] == 'n' && | |
10100 | name[8] == 'a' && | |
10101 | name[9] == 'm' && | |
10102 | name[10] == 'e') | |
10103 | { /* getpeername */ | |
10104 | return -KEY_getpeername; | |
10105 | } | |
10106 | ||
10107 | goto unknown; | |
10108 | ||
10109 | case 'r': | |
10110 | switch (name[5]) | |
10111 | { | |
10112 | case 'i': | |
10113 | if (name[6] == 'o' && | |
10114 | name[7] == 'r' && | |
10115 | name[8] == 'i' && | |
10116 | name[9] == 't' && | |
10117 | name[10] == 'y') | |
10118 | { /* getpriority */ | |
10119 | return -KEY_getpriority; | |
10120 | } | |
10121 | ||
10122 | goto unknown; | |
10123 | ||
10124 | case 'o': | |
10125 | if (name[6] == 't' && | |
10126 | name[7] == 'o' && | |
10127 | name[8] == 'e' && | |
10128 | name[9] == 'n' && | |
10129 | name[10] == 't') | |
10130 | { /* getprotoent */ | |
10131 | return -KEY_getprotoent; | |
10132 | } | |
10133 | ||
10134 | goto unknown; | |
10135 | ||
10136 | default: | |
10137 | goto unknown; | |
10138 | } | |
10139 | ||
10140 | default: | |
10141 | goto unknown; | |
10142 | } | |
10143 | ||
10144 | case 's': | |
10145 | if (name[4] == 'o' && | |
10146 | name[5] == 'c' && | |
10147 | name[6] == 'k' && | |
10148 | name[7] == 'n' && | |
10149 | name[8] == 'a' && | |
10150 | name[9] == 'm' && | |
10151 | name[10] == 'e') | |
10152 | { /* getsockname */ | |
10153 | return -KEY_getsockname; | |
10154 | } | |
10155 | ||
10156 | goto unknown; | |
10157 | ||
10158 | default: | |
10159 | goto unknown; | |
10160 | } | |
10161 | } | |
10162 | ||
10163 | goto unknown; | |
10164 | ||
10165 | case 's': | |
10166 | if (name[1] == 'e' && | |
10167 | name[2] == 't' && | |
10168 | name[3] == 'p' && | |
10169 | name[4] == 'r') | |
10170 | { | |
10171 | switch (name[5]) | |
10172 | { | |
10173 | case 'i': | |
10174 | if (name[6] == 'o' && | |
10175 | name[7] == 'r' && | |
10176 | name[8] == 'i' && | |
10177 | name[9] == 't' && | |
10178 | name[10] == 'y') | |
10179 | { /* setpriority */ | |
10180 | return -KEY_setpriority; | |
10181 | } | |
10182 | ||
10183 | goto unknown; | |
10184 | ||
10185 | case 'o': | |
10186 | if (name[6] == 't' && | |
10187 | name[7] == 'o' && | |
10188 | name[8] == 'e' && | |
10189 | name[9] == 'n' && | |
10190 | name[10] == 't') | |
10191 | { /* setprotoent */ | |
10192 | return -KEY_setprotoent; | |
10193 | } | |
10194 | ||
10195 | goto unknown; | |
10196 | ||
10197 | default: | |
10198 | goto unknown; | |
10199 | } | |
10200 | } | |
10201 | ||
10202 | goto unknown; | |
10203 | ||
10204 | default: | |
10205 | goto unknown; | |
e2e1dd5a | 10206 | } |
4c3bbe0f MHM |
10207 | |
10208 | case 12: /* 2 tokens of length 12 */ | |
10209 | if (name[0] == 'g' && | |
10210 | name[1] == 'e' && | |
10211 | name[2] == 't' && | |
10212 | name[3] == 'n' && | |
10213 | name[4] == 'e' && | |
10214 | name[5] == 't' && | |
10215 | name[6] == 'b' && | |
10216 | name[7] == 'y') | |
10217 | { | |
10218 | switch (name[8]) | |
10219 | { | |
10220 | case 'a': | |
10221 | if (name[9] == 'd' && | |
10222 | name[10] == 'd' && | |
10223 | name[11] == 'r') | |
10224 | { /* getnetbyaddr */ | |
10225 | return -KEY_getnetbyaddr; | |
10226 | } | |
10227 | ||
10228 | goto unknown; | |
10229 | ||
10230 | case 'n': | |
10231 | if (name[9] == 'a' && | |
10232 | name[10] == 'm' && | |
10233 | name[11] == 'e') | |
10234 | { /* getnetbyname */ | |
10235 | return -KEY_getnetbyname; | |
10236 | } | |
10237 | ||
10238 | goto unknown; | |
10239 | ||
10240 | default: | |
10241 | goto unknown; | |
10242 | } | |
e2e1dd5a | 10243 | } |
4c3bbe0f MHM |
10244 | |
10245 | goto unknown; | |
10246 | ||
10247 | case 13: /* 4 tokens of length 13 */ | |
10248 | if (name[0] == 'g' && | |
10249 | name[1] == 'e' && | |
10250 | name[2] == 't') | |
10251 | { | |
10252 | switch (name[3]) | |
10253 | { | |
10254 | case 'h': | |
10255 | if (name[4] == 'o' && | |
10256 | name[5] == 's' && | |
10257 | name[6] == 't' && | |
10258 | name[7] == 'b' && | |
10259 | name[8] == 'y') | |
10260 | { | |
10261 | switch (name[9]) | |
10262 | { | |
10263 | case 'a': | |
10264 | if (name[10] == 'd' && | |
10265 | name[11] == 'd' && | |
10266 | name[12] == 'r') | |
10267 | { /* gethostbyaddr */ | |
10268 | return -KEY_gethostbyaddr; | |
10269 | } | |
10270 | ||
10271 | goto unknown; | |
10272 | ||
10273 | case 'n': | |
10274 | if (name[10] == 'a' && | |
10275 | name[11] == 'm' && | |
10276 | name[12] == 'e') | |
10277 | { /* gethostbyname */ | |
10278 | return -KEY_gethostbyname; | |
10279 | } | |
10280 | ||
10281 | goto unknown; | |
10282 | ||
10283 | default: | |
10284 | goto unknown; | |
10285 | } | |
10286 | } | |
10287 | ||
10288 | goto unknown; | |
10289 | ||
10290 | case 's': | |
10291 | if (name[4] == 'e' && | |
10292 | name[5] == 'r' && | |
10293 | name[6] == 'v' && | |
10294 | name[7] == 'b' && | |
10295 | name[8] == 'y') | |
10296 | { | |
10297 | switch (name[9]) | |
10298 | { | |
10299 | case 'n': | |
10300 | if (name[10] == 'a' && | |
10301 | name[11] == 'm' && | |
10302 | name[12] == 'e') | |
10303 | { /* getservbyname */ | |
10304 | return -KEY_getservbyname; | |
10305 | } | |
10306 | ||
10307 | goto unknown; | |
10308 | ||
10309 | case 'p': | |
10310 | if (name[10] == 'o' && | |
10311 | name[11] == 'r' && | |
10312 | name[12] == 't') | |
10313 | { /* getservbyport */ | |
10314 | return -KEY_getservbyport; | |
10315 | } | |
10316 | ||
10317 | goto unknown; | |
10318 | ||
10319 | default: | |
10320 | goto unknown; | |
10321 | } | |
10322 | } | |
10323 | ||
10324 | goto unknown; | |
10325 | ||
10326 | default: | |
10327 | goto unknown; | |
10328 | } | |
e2e1dd5a | 10329 | } |
4c3bbe0f MHM |
10330 | |
10331 | goto unknown; | |
10332 | ||
10333 | case 14: /* 1 tokens of length 14 */ | |
10334 | if (name[0] == 'g' && | |
10335 | name[1] == 'e' && | |
10336 | name[2] == 't' && | |
10337 | name[3] == 'p' && | |
10338 | name[4] == 'r' && | |
10339 | name[5] == 'o' && | |
10340 | name[6] == 't' && | |
10341 | name[7] == 'o' && | |
10342 | name[8] == 'b' && | |
10343 | name[9] == 'y' && | |
10344 | name[10] == 'n' && | |
10345 | name[11] == 'a' && | |
10346 | name[12] == 'm' && | |
10347 | name[13] == 'e') | |
10348 | { /* getprotobyname */ | |
10349 | return -KEY_getprotobyname; | |
10350 | } | |
10351 | ||
10352 | goto unknown; | |
10353 | ||
10354 | case 16: /* 1 tokens of length 16 */ | |
10355 | if (name[0] == 'g' && | |
10356 | name[1] == 'e' && | |
10357 | name[2] == 't' && | |
10358 | name[3] == 'p' && | |
10359 | name[4] == 'r' && | |
10360 | name[5] == 'o' && | |
10361 | name[6] == 't' && | |
10362 | name[7] == 'o' && | |
10363 | name[8] == 'b' && | |
10364 | name[9] == 'y' && | |
10365 | name[10] == 'n' && | |
10366 | name[11] == 'u' && | |
10367 | name[12] == 'm' && | |
10368 | name[13] == 'b' && | |
10369 | name[14] == 'e' && | |
10370 | name[15] == 'r') | |
10371 | { /* getprotobynumber */ | |
10372 | return -KEY_getprotobynumber; | |
10373 | } | |
10374 | ||
10375 | goto unknown; | |
10376 | ||
10377 | default: | |
10378 | goto unknown; | |
e2e1dd5a | 10379 | } |
4c3bbe0f MHM |
10380 | |
10381 | unknown: | |
e2e1dd5a | 10382 | return 0; |
a687059c LW |
10383 | } |
10384 | ||
76e3520e | 10385 | STATIC void |
c94115d8 | 10386 | S_checkcomma(pTHX_ const char *s, const char *name, const char *what) |
a687059c | 10387 | { |
97aff369 | 10388 | dVAR; |
2f3197b3 | 10389 | |
d008e5eb | 10390 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
10391 | if (ckWARN(WARN_SYNTAX)) { |
10392 | int level = 1; | |
26ff0806 | 10393 | const char *w; |
d008e5eb GS |
10394 | for (w = s+2; *w && level; w++) { |
10395 | if (*w == '(') | |
10396 | ++level; | |
10397 | else if (*w == ')') | |
10398 | --level; | |
10399 | } | |
888fea98 NC |
10400 | while (isSPACE(*w)) |
10401 | ++w; | |
d008e5eb | 10402 | if (!*w || !strchr(";|})]oaiuw!=", *w)) /* an advisory hack only... */ |
9014280d | 10403 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 10404 | "%s (...) interpreted as function",name); |
d008e5eb | 10405 | } |
2f3197b3 | 10406 | } |
3280af22 | 10407 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 10408 | s++; |
a687059c LW |
10409 | if (*s == '(') |
10410 | s++; | |
3280af22 | 10411 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10412 | s++; |
7e2040f0 | 10413 | if (isIDFIRST_lazy_if(s,UTF)) { |
26ff0806 | 10414 | const char * const w = s++; |
7e2040f0 | 10415 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 10416 | s++; |
3280af22 | 10417 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10418 | s++; |
e929a76b | 10419 | if (*s == ',') { |
c94115d8 | 10420 | GV* gv; |
5458a98a | 10421 | if (keyword(w, s - w, 0)) |
e929a76b | 10422 | return; |
c94115d8 NC |
10423 | |
10424 | gv = gv_fetchpvn_flags(w, s - w, 0, SVt_PVCV); | |
10425 | if (gv && GvCVu(gv)) | |
abbb3198 | 10426 | return; |
cea2e8a9 | 10427 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
10428 | } |
10429 | } | |
10430 | } | |
10431 | ||
423cee85 JH |
10432 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
10433 | Best used as sv=new_constant(..., sv, ...). | |
10434 | If s, pv are NULL, calls subroutine with one argument, | |
10435 | and type is used with error messages only. */ | |
10436 | ||
b3ac6de7 | 10437 | STATIC SV * |
7fc63493 | 10438 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, SV *sv, SV *pv, |
9b0e499b | 10439 | const char *type) |
b3ac6de7 | 10440 | { |
27da23d5 | 10441 | dVAR; dSP; |
890ce7af | 10442 | HV * const table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 10443 | SV *res; |
b3ac6de7 IZ |
10444 | SV **cvp; |
10445 | SV *cv, *typesv; | |
89e33a05 | 10446 | const char *why1 = "", *why2 = "", *why3 = ""; |
4e553d73 | 10447 | |
f0af216f | 10448 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
10449 | SV *msg; |
10450 | ||
10edeb5d JH |
10451 | why2 = (const char *) |
10452 | (strEQ(key,"charnames") | |
10453 | ? "(possibly a missing \"use charnames ...\")" | |
10454 | : ""); | |
4e553d73 | 10455 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
10456 | (type ? type: "undef"), why2); |
10457 | ||
10458 | /* This is convoluted and evil ("goto considered harmful") | |
10459 | * but I do not understand the intricacies of all the different | |
10460 | * failure modes of %^H in here. The goal here is to make | |
10461 | * the most probable error message user-friendly. --jhi */ | |
10462 | ||
10463 | goto msgdone; | |
10464 | ||
423cee85 | 10465 | report: |
4e553d73 | 10466 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 10467 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 10468 | msgdone: |
95a20fc0 | 10469 | yyerror(SvPVX_const(msg)); |
423cee85 JH |
10470 | SvREFCNT_dec(msg); |
10471 | return sv; | |
10472 | } | |
b3ac6de7 IZ |
10473 | cvp = hv_fetch(table, key, strlen(key), FALSE); |
10474 | if (!cvp || !SvOK(*cvp)) { | |
423cee85 JH |
10475 | why1 = "$^H{"; |
10476 | why2 = key; | |
f0af216f | 10477 | why3 = "} is not defined"; |
423cee85 | 10478 | goto report; |
b3ac6de7 IZ |
10479 | } |
10480 | sv_2mortal(sv); /* Parent created it permanently */ | |
10481 | cv = *cvp; | |
423cee85 JH |
10482 | if (!pv && s) |
10483 | pv = sv_2mortal(newSVpvn(s, len)); | |
10484 | if (type && pv) | |
10485 | typesv = sv_2mortal(newSVpv(type, 0)); | |
b3ac6de7 | 10486 | else |
423cee85 | 10487 | typesv = &PL_sv_undef; |
4e553d73 | 10488 | |
e788e7d3 | 10489 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
10490 | ENTER ; |
10491 | SAVETMPS; | |
4e553d73 | 10492 | |
423cee85 | 10493 | PUSHMARK(SP) ; |
a5845cb7 | 10494 | EXTEND(sp, 3); |
423cee85 JH |
10495 | if (pv) |
10496 | PUSHs(pv); | |
b3ac6de7 | 10497 | PUSHs(sv); |
423cee85 JH |
10498 | if (pv) |
10499 | PUSHs(typesv); | |
b3ac6de7 | 10500 | PUTBACK; |
423cee85 | 10501 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 10502 | |
423cee85 | 10503 | SPAGAIN ; |
4e553d73 | 10504 | |
423cee85 | 10505 | /* Check the eval first */ |
9b0e499b | 10506 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
396482e1 | 10507 | sv_catpvs(ERRSV, "Propagated"); |
8b6b16e7 | 10508 | yyerror(SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */ |
e1f15930 | 10509 | (void)POPs; |
b37c2d43 | 10510 | res = SvREFCNT_inc_simple(sv); |
423cee85 JH |
10511 | } |
10512 | else { | |
10513 | res = POPs; | |
b37c2d43 | 10514 | SvREFCNT_inc_simple_void(res); |
423cee85 | 10515 | } |
4e553d73 | 10516 | |
423cee85 JH |
10517 | PUTBACK ; |
10518 | FREETMPS ; | |
10519 | LEAVE ; | |
b3ac6de7 | 10520 | POPSTACK; |
4e553d73 | 10521 | |
b3ac6de7 | 10522 | if (!SvOK(res)) { |
423cee85 JH |
10523 | why1 = "Call to &{$^H{"; |
10524 | why2 = key; | |
f0af216f | 10525 | why3 = "}} did not return a defined value"; |
423cee85 JH |
10526 | sv = res; |
10527 | goto report; | |
9b0e499b | 10528 | } |
423cee85 | 10529 | |
9b0e499b | 10530 | return res; |
b3ac6de7 | 10531 | } |
4e553d73 | 10532 | |
d0a148a6 NC |
10533 | /* Returns a NUL terminated string, with the length of the string written to |
10534 | *slp | |
10535 | */ | |
76e3520e | 10536 | STATIC char * |
cea2e8a9 | 10537 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 | 10538 | { |
97aff369 | 10539 | dVAR; |
463ee0b2 | 10540 | register char *d = dest; |
890ce7af | 10541 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
463ee0b2 | 10542 | for (;;) { |
8903cb82 | 10543 | if (d >= e) |
cea2e8a9 | 10544 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10545 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10546 | *d++ = *s++; |
c35e046a | 10547 | else if (allow_package && (*s == '\'') && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10548 | *d++ = ':'; |
10549 | *d++ = ':'; | |
10550 | s++; | |
10551 | } | |
c35e046a | 10552 | else if (allow_package && (s[0] == ':') && (s[1] == ':') && (s[2] != '$')) { |
463ee0b2 LW |
10553 | *d++ = *s++; |
10554 | *d++ = *s++; | |
10555 | } | |
fd400ab9 | 10556 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10557 | char *t = s + UTF8SKIP(s); |
c35e046a | 10558 | size_t len; |
fd400ab9 | 10559 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 | 10560 | t += UTF8SKIP(t); |
c35e046a AL |
10561 | len = t - s; |
10562 | if (d + len > e) | |
cea2e8a9 | 10563 | Perl_croak(aTHX_ ident_too_long); |
c35e046a AL |
10564 | Copy(s, d, len, char); |
10565 | d += len; | |
a0ed51b3 LW |
10566 | s = t; |
10567 | } | |
463ee0b2 LW |
10568 | else { |
10569 | *d = '\0'; | |
10570 | *slp = d - dest; | |
10571 | return s; | |
e929a76b | 10572 | } |
378cc40b LW |
10573 | } |
10574 | } | |
10575 | ||
76e3520e | 10576 | STATIC char * |
f54cb97a | 10577 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b | 10578 | { |
97aff369 | 10579 | dVAR; |
6136c704 | 10580 | char *bracket = NULL; |
748a9306 | 10581 | char funny = *s++; |
6136c704 AL |
10582 | register char *d = dest; |
10583 | register char * const e = d + destlen + 3; /* two-character token, ending NUL */ | |
378cc40b | 10584 | |
a0d0e21e | 10585 | if (isSPACE(*s)) |
29595ff2 | 10586 | s = PEEKSPACE(s); |
de3bb511 | 10587 | if (isDIGIT(*s)) { |
8903cb82 | 10588 | while (isDIGIT(*s)) { |
10589 | if (d >= e) | |
cea2e8a9 | 10590 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 10591 | *d++ = *s++; |
8903cb82 | 10592 | } |
378cc40b LW |
10593 | } |
10594 | else { | |
463ee0b2 | 10595 | for (;;) { |
8903cb82 | 10596 | if (d >= e) |
cea2e8a9 | 10597 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10598 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10599 | *d++ = *s++; |
7e2040f0 | 10600 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10601 | *d++ = ':'; |
10602 | *d++ = ':'; | |
10603 | s++; | |
10604 | } | |
a0d0e21e | 10605 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
10606 | *d++ = *s++; |
10607 | *d++ = *s++; | |
10608 | } | |
fd400ab9 | 10609 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10610 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 10611 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
10612 | t += UTF8SKIP(t); |
10613 | if (d + (t - s) > e) | |
cea2e8a9 | 10614 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
10615 | Copy(s, d, t - s, char); |
10616 | d += t - s; | |
10617 | s = t; | |
10618 | } | |
463ee0b2 LW |
10619 | else |
10620 | break; | |
10621 | } | |
378cc40b LW |
10622 | } |
10623 | *d = '\0'; | |
10624 | d = dest; | |
79072805 | 10625 | if (*d) { |
3280af22 NIS |
10626 | if (PL_lex_state != LEX_NORMAL) |
10627 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 10628 | return s; |
378cc40b | 10629 | } |
748a9306 | 10630 | if (*s == '$' && s[1] && |
3792a11b | 10631 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 10632 | { |
4810e5ec | 10633 | return s; |
5cd24f17 | 10634 | } |
79072805 LW |
10635 | if (*s == '{') { |
10636 | bracket = s; | |
10637 | s++; | |
10638 | } | |
10639 | else if (ck_uni) | |
10640 | check_uni(); | |
93a17b20 | 10641 | if (s < send) |
79072805 LW |
10642 | *d = *s++; |
10643 | d[1] = '\0'; | |
2b92dfce | 10644 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 10645 | *d = toCTRL(*s); |
10646 | s++; | |
de3bb511 | 10647 | } |
79072805 | 10648 | if (bracket) { |
748a9306 | 10649 | if (isSPACE(s[-1])) { |
fa83b5b6 | 10650 | while (s < send) { |
f54cb97a | 10651 | const char ch = *s++; |
bf4acbe4 | 10652 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 10653 | *d = ch; |
10654 | break; | |
10655 | } | |
10656 | } | |
748a9306 | 10657 | } |
7e2040f0 | 10658 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 10659 | d++; |
a0ed51b3 | 10660 | if (UTF) { |
6136c704 AL |
10661 | char *end = s; |
10662 | while ((end < send && isALNUM_lazy_if(end,UTF)) || *end == ':') { | |
10663 | end += UTF8SKIP(end); | |
10664 | while (end < send && UTF8_IS_CONTINUED(*end) && is_utf8_mark((U8*)end)) | |
10665 | end += UTF8SKIP(end); | |
a0ed51b3 | 10666 | } |
6136c704 AL |
10667 | Copy(s, d, end - s, char); |
10668 | d += end - s; | |
10669 | s = end; | |
a0ed51b3 LW |
10670 | } |
10671 | else { | |
2b92dfce | 10672 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 10673 | *d++ = *s++; |
2b92dfce | 10674 | if (d >= e) |
cea2e8a9 | 10675 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 10676 | } |
79072805 | 10677 | *d = '\0'; |
c35e046a AL |
10678 | while (s < send && SPACE_OR_TAB(*s)) |
10679 | s++; | |
ff68c719 | 10680 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
5458a98a | 10681 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest, 0)) { |
10edeb5d JH |
10682 | const char * const brack = |
10683 | (const char *) | |
10684 | ((*s == '[') ? "[...]" : "{...}"); | |
9014280d | 10685 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 10686 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
10687 | funny, dest, brack, funny, dest, brack); |
10688 | } | |
79072805 | 10689 | bracket++; |
a0be28da | 10690 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
10691 | return s; |
10692 | } | |
4e553d73 NIS |
10693 | } |
10694 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
10695 | * 1999-02-27 mjd-perl-patch@plover.com */ |
10696 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
10697 | && isALNUM(*s)) | |
10698 | { | |
10699 | d++; | |
10700 | while (isALNUM(*s) && d < e) { | |
10701 | *d++ = *s++; | |
10702 | } | |
10703 | if (d >= e) | |
cea2e8a9 | 10704 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 10705 | *d = '\0'; |
79072805 LW |
10706 | } |
10707 | if (*s == '}') { | |
10708 | s++; | |
7df0d042 | 10709 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 10710 | PL_lex_state = LEX_INTERPEND; |
7df0d042 AE |
10711 | PL_expect = XREF; |
10712 | } | |
d008e5eb | 10713 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 10714 | if (ckWARN(WARN_AMBIGUOUS) && |
5458a98a | 10715 | (keyword(dest, d - dest, 0) || get_cv(dest, FALSE))) |
d008e5eb | 10716 | { |
c35e046a AL |
10717 | if (funny == '#') |
10718 | funny = '@'; | |
9014280d | 10719 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
10720 | "Ambiguous use of %c{%s} resolved to %c%s", |
10721 | funny, dest, funny, dest); | |
10722 | } | |
10723 | } | |
79072805 LW |
10724 | } |
10725 | else { | |
10726 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 10727 | *dest = '\0'; |
79072805 LW |
10728 | } |
10729 | } | |
3280af22 NIS |
10730 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
10731 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
10732 | return s; |
10733 | } | |
10734 | ||
cea2e8a9 | 10735 | void |
2b36a5a0 | 10736 | Perl_pmflag(pTHX_ U32* pmfl, int ch) |
a0d0e21e | 10737 | { |
96a5add6 | 10738 | PERL_UNUSED_CONTEXT; |
bbce6d69 | 10739 | if (ch == 'i') |
a0d0e21e | 10740 | *pmfl |= PMf_FOLD; |
a0d0e21e LW |
10741 | else if (ch == 'g') |
10742 | *pmfl |= PMf_GLOBAL; | |
c90c0ff4 | 10743 | else if (ch == 'c') |
10744 | *pmfl |= PMf_CONTINUE; | |
a0d0e21e LW |
10745 | else if (ch == 'o') |
10746 | *pmfl |= PMf_KEEP; | |
10747 | else if (ch == 'm') | |
10748 | *pmfl |= PMf_MULTILINE; | |
10749 | else if (ch == 's') | |
10750 | *pmfl |= PMf_SINGLELINE; | |
10751 | else if (ch == 'x') | |
10752 | *pmfl |= PMf_EXTENDED; | |
10753 | } | |
378cc40b | 10754 | |
76e3520e | 10755 | STATIC char * |
cea2e8a9 | 10756 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 10757 | { |
97aff369 | 10758 | dVAR; |
79072805 | 10759 | PMOP *pm; |
5db06880 | 10760 | char *s = scan_str(start,!!PL_madskills,FALSE); |
10edeb5d JH |
10761 | const char * const valid_flags = |
10762 | (const char *)((type == OP_QR) ? "iomsx" : "iogcmsx"); | |
5db06880 NC |
10763 | #ifdef PERL_MAD |
10764 | char *modstart; | |
10765 | #endif | |
10766 | ||
378cc40b | 10767 | |
25c09cbf | 10768 | if (!s) { |
6136c704 | 10769 | const char * const delimiter = skipspace(start); |
10edeb5d JH |
10770 | Perl_croak(aTHX_ |
10771 | (const char *) | |
10772 | (*delimiter == '?' | |
10773 | ? "Search pattern not terminated or ternary operator parsed as search pattern" | |
10774 | : "Search pattern not terminated" )); | |
25c09cbf | 10775 | } |
bbce6d69 | 10776 | |
8782bef2 | 10777 | pm = (PMOP*)newPMOP(type, 0); |
3280af22 | 10778 | if (PL_multi_open == '?') |
79072805 | 10779 | pm->op_pmflags |= PMf_ONCE; |
5db06880 NC |
10780 | #ifdef PERL_MAD |
10781 | modstart = s; | |
10782 | #endif | |
6136c704 AL |
10783 | while (*s && strchr(valid_flags, *s)) |
10784 | pmflag(&pm->op_pmflags,*s++); | |
5db06880 NC |
10785 | #ifdef PERL_MAD |
10786 | if (PL_madskills && modstart != s) { | |
10787 | SV* tmptoken = newSVpvn(modstart, s - modstart); | |
10788 | append_madprops(newMADPROP('m', MAD_SV, tmptoken, 0), (OP*)pm, 0); | |
10789 | } | |
10790 | #endif | |
4ac733c9 | 10791 | /* issue a warning if /c is specified,but /g is not */ |
041457d9 DM |
10792 | if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL) |
10793 | && ckWARN(WARN_REGEXP)) | |
4ac733c9 | 10794 | { |
0bd48802 | 10795 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless without /g" ); |
4ac733c9 MJD |
10796 | } |
10797 | ||
4633a7c4 | 10798 | pm->op_pmpermflags = pm->op_pmflags; |
bbce6d69 | 10799 | |
3280af22 | 10800 | PL_lex_op = (OP*)pm; |
79072805 | 10801 | yylval.ival = OP_MATCH; |
378cc40b LW |
10802 | return s; |
10803 | } | |
10804 | ||
76e3520e | 10805 | STATIC char * |
cea2e8a9 | 10806 | S_scan_subst(pTHX_ char *start) |
79072805 | 10807 | { |
27da23d5 | 10808 | dVAR; |
a0d0e21e | 10809 | register char *s; |
79072805 | 10810 | register PMOP *pm; |
4fdae800 | 10811 | I32 first_start; |
79072805 | 10812 | I32 es = 0; |
5db06880 NC |
10813 | #ifdef PERL_MAD |
10814 | char *modstart; | |
10815 | #endif | |
79072805 | 10816 | |
79072805 LW |
10817 | yylval.ival = OP_NULL; |
10818 | ||
5db06880 | 10819 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 10820 | |
37fd879b | 10821 | if (!s) |
cea2e8a9 | 10822 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 10823 | |
3280af22 | 10824 | if (s[-1] == PL_multi_open) |
79072805 | 10825 | s--; |
5db06880 NC |
10826 | #ifdef PERL_MAD |
10827 | if (PL_madskills) { | |
cd81e915 NC |
10828 | CURMAD('q', PL_thisopen); |
10829 | CURMAD('_', PL_thiswhite); | |
10830 | CURMAD('E', PL_thisstuff); | |
10831 | CURMAD('Q', PL_thisclose); | |
10832 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
10833 | } |
10834 | #endif | |
79072805 | 10835 | |
3280af22 | 10836 | first_start = PL_multi_start; |
5db06880 | 10837 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 10838 | if (!s) { |
37fd879b | 10839 | if (PL_lex_stuff) { |
3280af22 | 10840 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 10841 | PL_lex_stuff = NULL; |
37fd879b | 10842 | } |
cea2e8a9 | 10843 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 10844 | } |
3280af22 | 10845 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 10846 | |
79072805 | 10847 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
5db06880 NC |
10848 | |
10849 | #ifdef PERL_MAD | |
10850 | if (PL_madskills) { | |
cd81e915 NC |
10851 | CURMAD('z', PL_thisopen); |
10852 | CURMAD('R', PL_thisstuff); | |
10853 | CURMAD('Z', PL_thisclose); | |
5db06880 NC |
10854 | } |
10855 | modstart = s; | |
10856 | #endif | |
10857 | ||
48c036b1 | 10858 | while (*s) { |
a687059c LW |
10859 | if (*s == 'e') { |
10860 | s++; | |
2f3197b3 | 10861 | es++; |
a687059c | 10862 | } |
b3eb6a9b | 10863 | else if (strchr("iogcmsx", *s)) |
a0d0e21e | 10864 | pmflag(&pm->op_pmflags,*s++); |
48c036b1 GS |
10865 | else |
10866 | break; | |
378cc40b | 10867 | } |
79072805 | 10868 | |
5db06880 NC |
10869 | #ifdef PERL_MAD |
10870 | if (PL_madskills) { | |
10871 | if (modstart != s) | |
10872 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
10873 | append_madprops(PL_thismad, (OP*)pm, 0); |
10874 | PL_thismad = 0; | |
5db06880 NC |
10875 | } |
10876 | #endif | |
0bd48802 AL |
10877 | if ((pm->op_pmflags & PMf_CONTINUE) && ckWARN(WARN_REGEXP)) { |
10878 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" ); | |
4ac733c9 MJD |
10879 | } |
10880 | ||
79072805 | 10881 | if (es) { |
6136c704 AL |
10882 | SV * const repl = newSVpvs(""); |
10883 | ||
0244c3a4 GS |
10884 | PL_sublex_info.super_bufptr = s; |
10885 | PL_sublex_info.super_bufend = PL_bufend; | |
10886 | PL_multi_end = 0; | |
79072805 | 10887 | pm->op_pmflags |= PMf_EVAL; |
463ee0b2 | 10888 | while (es-- > 0) |
10edeb5d | 10889 | sv_catpv(repl, (const char *)(es ? "eval " : "do ")); |
6f43d98f | 10890 | sv_catpvs(repl, "{"); |
3280af22 | 10891 | sv_catsv(repl, PL_lex_repl); |
9badc361 RGS |
10892 | if (strchr(SvPVX(PL_lex_repl), '#')) |
10893 | sv_catpvs(repl, "\n"); | |
10894 | sv_catpvs(repl, "}"); | |
25da4f38 | 10895 | SvEVALED_on(repl); |
3280af22 NIS |
10896 | SvREFCNT_dec(PL_lex_repl); |
10897 | PL_lex_repl = repl; | |
378cc40b | 10898 | } |
79072805 | 10899 | |
4633a7c4 | 10900 | pm->op_pmpermflags = pm->op_pmflags; |
3280af22 | 10901 | PL_lex_op = (OP*)pm; |
79072805 | 10902 | yylval.ival = OP_SUBST; |
378cc40b LW |
10903 | return s; |
10904 | } | |
10905 | ||
76e3520e | 10906 | STATIC char * |
cea2e8a9 | 10907 | S_scan_trans(pTHX_ char *start) |
378cc40b | 10908 | { |
97aff369 | 10909 | dVAR; |
a0d0e21e | 10910 | register char* s; |
11343788 | 10911 | OP *o; |
79072805 LW |
10912 | short *tbl; |
10913 | I32 squash; | |
a0ed51b3 | 10914 | I32 del; |
79072805 | 10915 | I32 complement; |
5db06880 NC |
10916 | #ifdef PERL_MAD |
10917 | char *modstart; | |
10918 | #endif | |
79072805 LW |
10919 | |
10920 | yylval.ival = OP_NULL; | |
10921 | ||
5db06880 | 10922 | s = scan_str(start,!!PL_madskills,FALSE); |
37fd879b | 10923 | if (!s) |
cea2e8a9 | 10924 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
5db06880 | 10925 | |
3280af22 | 10926 | if (s[-1] == PL_multi_open) |
2f3197b3 | 10927 | s--; |
5db06880 NC |
10928 | #ifdef PERL_MAD |
10929 | if (PL_madskills) { | |
cd81e915 NC |
10930 | CURMAD('q', PL_thisopen); |
10931 | CURMAD('_', PL_thiswhite); | |
10932 | CURMAD('E', PL_thisstuff); | |
10933 | CURMAD('Q', PL_thisclose); | |
10934 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
10935 | } |
10936 | #endif | |
2f3197b3 | 10937 | |
5db06880 | 10938 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 10939 | if (!s) { |
37fd879b | 10940 | if (PL_lex_stuff) { |
3280af22 | 10941 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 10942 | PL_lex_stuff = NULL; |
37fd879b | 10943 | } |
cea2e8a9 | 10944 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 10945 | } |
5db06880 | 10946 | if (PL_madskills) { |
cd81e915 NC |
10947 | CURMAD('z', PL_thisopen); |
10948 | CURMAD('R', PL_thisstuff); | |
10949 | CURMAD('Z', PL_thisclose); | |
5db06880 | 10950 | } |
79072805 | 10951 | |
a0ed51b3 | 10952 | complement = del = squash = 0; |
5db06880 NC |
10953 | #ifdef PERL_MAD |
10954 | modstart = s; | |
10955 | #endif | |
7a1e2023 NC |
10956 | while (1) { |
10957 | switch (*s) { | |
10958 | case 'c': | |
79072805 | 10959 | complement = OPpTRANS_COMPLEMENT; |
7a1e2023 NC |
10960 | break; |
10961 | case 'd': | |
a0ed51b3 | 10962 | del = OPpTRANS_DELETE; |
7a1e2023 NC |
10963 | break; |
10964 | case 's': | |
79072805 | 10965 | squash = OPpTRANS_SQUASH; |
7a1e2023 NC |
10966 | break; |
10967 | default: | |
10968 | goto no_more; | |
10969 | } | |
395c3793 LW |
10970 | s++; |
10971 | } | |
7a1e2023 | 10972 | no_more: |
8973db79 | 10973 | |
a02a5408 | 10974 | Newx(tbl, complement&&!del?258:256, short); |
8973db79 | 10975 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
59f00321 RGS |
10976 | o->op_private &= ~OPpTRANS_ALL; |
10977 | o->op_private |= del|squash|complement| | |
7948272d NIS |
10978 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| |
10979 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 10980 | |
3280af22 | 10981 | PL_lex_op = o; |
79072805 | 10982 | yylval.ival = OP_TRANS; |
5db06880 NC |
10983 | |
10984 | #ifdef PERL_MAD | |
10985 | if (PL_madskills) { | |
10986 | if (modstart != s) | |
10987 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
10988 | append_madprops(PL_thismad, o, 0); |
10989 | PL_thismad = 0; | |
5db06880 NC |
10990 | } |
10991 | #endif | |
10992 | ||
79072805 LW |
10993 | return s; |
10994 | } | |
10995 | ||
76e3520e | 10996 | STATIC char * |
cea2e8a9 | 10997 | S_scan_heredoc(pTHX_ register char *s) |
79072805 | 10998 | { |
97aff369 | 10999 | dVAR; |
79072805 LW |
11000 | SV *herewas; |
11001 | I32 op_type = OP_SCALAR; | |
11002 | I32 len; | |
11003 | SV *tmpstr; | |
11004 | char term; | |
73d840c0 | 11005 | const char *found_newline; |
79072805 | 11006 | register char *d; |
fc36a67e | 11007 | register char *e; |
4633a7c4 | 11008 | char *peek; |
f54cb97a | 11009 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
5db06880 NC |
11010 | #ifdef PERL_MAD |
11011 | I32 stuffstart = s - SvPVX(PL_linestr); | |
11012 | char *tstart; | |
11013 | ||
cd81e915 | 11014 | PL_realtokenstart = -1; |
5db06880 | 11015 | #endif |
79072805 LW |
11016 | |
11017 | s += 2; | |
3280af22 NIS |
11018 | d = PL_tokenbuf; |
11019 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 11020 | if (!outer) |
79072805 | 11021 | *d++ = '\n'; |
c35e046a AL |
11022 | peek = s; |
11023 | while (SPACE_OR_TAB(*peek)) | |
11024 | peek++; | |
3792a11b | 11025 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 11026 | s = peek; |
79072805 | 11027 | term = *s++; |
3280af22 | 11028 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 11029 | d += len; |
3280af22 | 11030 | if (s < PL_bufend) |
79072805 | 11031 | s++; |
79072805 LW |
11032 | } |
11033 | else { | |
11034 | if (*s == '\\') | |
11035 | s++, term = '\''; | |
11036 | else | |
11037 | term = '"'; | |
7e2040f0 | 11038 | if (!isALNUM_lazy_if(s,UTF)) |
12bcd1a6 | 11039 | deprecate_old("bare << to mean <<\"\""); |
7e2040f0 | 11040 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 11041 | if (d < e) |
11042 | *d++ = *s; | |
11043 | } | |
11044 | } | |
3280af22 | 11045 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 11046 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
11047 | *d++ = '\n'; |
11048 | *d = '\0'; | |
3280af22 | 11049 | len = d - PL_tokenbuf; |
5db06880 NC |
11050 | |
11051 | #ifdef PERL_MAD | |
11052 | if (PL_madskills) { | |
11053 | tstart = PL_tokenbuf + !outer; | |
cd81e915 | 11054 | PL_thisclose = newSVpvn(tstart, len - !outer); |
5db06880 | 11055 | tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 | 11056 | PL_thisopen = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11057 | stuffstart = s - SvPVX(PL_linestr); |
11058 | } | |
11059 | #endif | |
6a27c188 | 11060 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
11061 | d = strchr(s, '\r'); |
11062 | if (d) { | |
b464bac0 | 11063 | char * const olds = s; |
f63a84b2 | 11064 | s = d; |
3280af22 | 11065 | while (s < PL_bufend) { |
f63a84b2 LW |
11066 | if (*s == '\r') { |
11067 | *d++ = '\n'; | |
11068 | if (*++s == '\n') | |
11069 | s++; | |
11070 | } | |
11071 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
11072 | *d++ = *s++; | |
11073 | s++; | |
11074 | } | |
11075 | else | |
11076 | *d++ = *s++; | |
11077 | } | |
11078 | *d = '\0'; | |
3280af22 | 11079 | PL_bufend = d; |
95a20fc0 | 11080 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
11081 | s = olds; |
11082 | } | |
11083 | #endif | |
5db06880 NC |
11084 | #ifdef PERL_MAD |
11085 | found_newline = 0; | |
11086 | #endif | |
10edeb5d | 11087 | if ( outer || !(found_newline = (char*)memchr((void*)s, '\n', PL_bufend - s)) ) { |
73d840c0 AL |
11088 | herewas = newSVpvn(s,PL_bufend-s); |
11089 | } | |
11090 | else { | |
5db06880 NC |
11091 | #ifdef PERL_MAD |
11092 | herewas = newSVpvn(s-1,found_newline-s+1); | |
11093 | #else | |
73d840c0 AL |
11094 | s--; |
11095 | herewas = newSVpvn(s,found_newline-s); | |
5db06880 | 11096 | #endif |
73d840c0 | 11097 | } |
5db06880 NC |
11098 | #ifdef PERL_MAD |
11099 | if (PL_madskills) { | |
11100 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11101 | if (PL_thisstuff) |
11102 | sv_catpvn(PL_thisstuff, tstart, s - tstart); | |
5db06880 | 11103 | else |
cd81e915 | 11104 | PL_thisstuff = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11105 | } |
11106 | #endif | |
79072805 | 11107 | s += SvCUR(herewas); |
748a9306 | 11108 | |
5db06880 NC |
11109 | #ifdef PERL_MAD |
11110 | stuffstart = s - SvPVX(PL_linestr); | |
11111 | ||
11112 | if (found_newline) | |
11113 | s--; | |
11114 | #endif | |
11115 | ||
561b68a9 | 11116 | tmpstr = newSV(79); |
748a9306 LW |
11117 | sv_upgrade(tmpstr, SVt_PVIV); |
11118 | if (term == '\'') { | |
79072805 | 11119 | op_type = OP_CONST; |
45977657 | 11120 | SvIV_set(tmpstr, -1); |
748a9306 LW |
11121 | } |
11122 | else if (term == '`') { | |
79072805 | 11123 | op_type = OP_BACKTICK; |
45977657 | 11124 | SvIV_set(tmpstr, '\\'); |
748a9306 | 11125 | } |
79072805 LW |
11126 | |
11127 | CLINE; | |
57843af0 | 11128 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
11129 | PL_multi_open = PL_multi_close = '<'; |
11130 | term = *PL_tokenbuf; | |
0244c3a4 | 11131 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
6136c704 AL |
11132 | char * const bufptr = PL_sublex_info.super_bufptr; |
11133 | char * const bufend = PL_sublex_info.super_bufend; | |
b464bac0 | 11134 | char * const olds = s - SvCUR(herewas); |
0244c3a4 GS |
11135 | s = strchr(bufptr, '\n'); |
11136 | if (!s) | |
11137 | s = bufend; | |
11138 | d = s; | |
11139 | while (s < bufend && | |
11140 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
11141 | if (*s++ == '\n') | |
57843af0 | 11142 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
11143 | } |
11144 | if (s >= bufend) { | |
eb160463 | 11145 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
11146 | missingterm(PL_tokenbuf); |
11147 | } | |
11148 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
11149 | sv_setpvn(tmpstr,d+1,s-d); | |
11150 | s += len - 1; | |
11151 | sv_catpvn(herewas,s,bufend-s); | |
95a20fc0 | 11152 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
11153 | |
11154 | s = olds; | |
11155 | goto retval; | |
11156 | } | |
11157 | else if (!outer) { | |
79072805 | 11158 | d = s; |
3280af22 NIS |
11159 | while (s < PL_bufend && |
11160 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 11161 | if (*s++ == '\n') |
57843af0 | 11162 | CopLINE_inc(PL_curcop); |
79072805 | 11163 | } |
3280af22 | 11164 | if (s >= PL_bufend) { |
eb160463 | 11165 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11166 | missingterm(PL_tokenbuf); |
79072805 LW |
11167 | } |
11168 | sv_setpvn(tmpstr,d+1,s-d); | |
5db06880 NC |
11169 | #ifdef PERL_MAD |
11170 | if (PL_madskills) { | |
cd81e915 NC |
11171 | if (PL_thisstuff) |
11172 | sv_catpvn(PL_thisstuff, d + 1, s - d); | |
5db06880 | 11173 | else |
cd81e915 | 11174 | PL_thisstuff = newSVpvn(d + 1, s - d); |
5db06880 NC |
11175 | stuffstart = s - SvPVX(PL_linestr); |
11176 | } | |
11177 | #endif | |
79072805 | 11178 | s += len - 1; |
57843af0 | 11179 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 11180 | |
3280af22 NIS |
11181 | sv_catpvn(herewas,s,PL_bufend-s); |
11182 | sv_setsv(PL_linestr,herewas); | |
11183 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
11184 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11185 | PL_last_lop = PL_last_uni = NULL; |
79072805 LW |
11186 | } |
11187 | else | |
11188 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
3280af22 | 11189 | while (s >= PL_bufend) { /* multiple line string? */ |
5db06880 NC |
11190 | #ifdef PERL_MAD |
11191 | if (PL_madskills) { | |
11192 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11193 | if (PL_thisstuff) |
11194 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11195 | else |
cd81e915 | 11196 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11197 | } |
11198 | #endif | |
fd2d0953 | 11199 | if (!outer || |
3280af22 | 11200 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { |
eb160463 | 11201 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11202 | missingterm(PL_tokenbuf); |
79072805 | 11203 | } |
5db06880 NC |
11204 | #ifdef PERL_MAD |
11205 | stuffstart = s - SvPVX(PL_linestr); | |
11206 | #endif | |
57843af0 | 11207 | CopLINE_inc(PL_curcop); |
3280af22 | 11208 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 11209 | PL_last_lop = PL_last_uni = NULL; |
6a27c188 | 11210 | #ifndef PERL_STRICT_CR |
3280af22 | 11211 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
11212 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
11213 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 11214 | { |
3280af22 NIS |
11215 | PL_bufend[-2] = '\n'; |
11216 | PL_bufend--; | |
95a20fc0 | 11217 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 11218 | } |
3280af22 NIS |
11219 | else if (PL_bufend[-1] == '\r') |
11220 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11221 | } |
3280af22 NIS |
11222 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
11223 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11224 | #endif |
80a702cd RGS |
11225 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
11226 | update_debugger_info_sv(PL_linestr); | |
3280af22 | 11227 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
95a20fc0 | 11228 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
1de9afcd | 11229 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
11230 | sv_catsv(PL_linestr,herewas); |
11231 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
1de9afcd | 11232 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
11233 | } |
11234 | else { | |
3280af22 NIS |
11235 | s = PL_bufend; |
11236 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
11237 | } |
11238 | } | |
79072805 | 11239 | s++; |
0244c3a4 | 11240 | retval: |
57843af0 | 11241 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 11242 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
1da4ca5f | 11243 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 11244 | } |
8990e307 | 11245 | SvREFCNT_dec(herewas); |
2f31ce75 | 11246 | if (!IN_BYTES) { |
95a20fc0 | 11247 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
2f31ce75 JH |
11248 | SvUTF8_on(tmpstr); |
11249 | else if (PL_encoding) | |
11250 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
11251 | } | |
3280af22 | 11252 | PL_lex_stuff = tmpstr; |
79072805 LW |
11253 | yylval.ival = op_type; |
11254 | return s; | |
11255 | } | |
11256 | ||
02aa26ce NT |
11257 | /* scan_inputsymbol |
11258 | takes: current position in input buffer | |
11259 | returns: new position in input buffer | |
11260 | side-effects: yylval and lex_op are set. | |
11261 | ||
11262 | This code handles: | |
11263 | ||
11264 | <> read from ARGV | |
11265 | <FH> read from filehandle | |
11266 | <pkg::FH> read from package qualified filehandle | |
11267 | <pkg'FH> read from package qualified filehandle | |
11268 | <$fh> read from filehandle in $fh | |
11269 | <*.h> filename glob | |
11270 | ||
11271 | */ | |
11272 | ||
76e3520e | 11273 | STATIC char * |
cea2e8a9 | 11274 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 11275 | { |
97aff369 | 11276 | dVAR; |
02aa26ce | 11277 | register char *s = start; /* current position in buffer */ |
1b420867 | 11278 | char *end; |
79072805 LW |
11279 | I32 len; |
11280 | ||
6136c704 AL |
11281 | char *d = PL_tokenbuf; /* start of temp holding space */ |
11282 | const char * const e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
11283 | ||
1b420867 GS |
11284 | end = strchr(s, '\n'); |
11285 | if (!end) | |
11286 | end = PL_bufend; | |
11287 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
11288 | |
11289 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 11290 | or if it didn't end, or if we see a newline |
02aa26ce NT |
11291 | */ |
11292 | ||
bb7a0f54 | 11293 | if (len >= (I32)sizeof PL_tokenbuf) |
cea2e8a9 | 11294 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 11295 | if (s >= end) |
cea2e8a9 | 11296 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 11297 | |
fc36a67e | 11298 | s++; |
02aa26ce NT |
11299 | |
11300 | /* check for <$fh> | |
11301 | Remember, only scalar variables are interpreted as filehandles by | |
11302 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
11303 | treated as a glob() call. | |
11304 | This code makes use of the fact that except for the $ at the front, | |
11305 | a scalar variable and a filehandle look the same. | |
11306 | */ | |
4633a7c4 | 11307 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
11308 | |
11309 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 11310 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 11311 | d++; |
02aa26ce NT |
11312 | |
11313 | /* If we've tried to read what we allow filehandles to look like, and | |
11314 | there's still text left, then it must be a glob() and not a getline. | |
11315 | Use scan_str to pull out the stuff between the <> and treat it | |
11316 | as nothing more than a string. | |
11317 | */ | |
11318 | ||
3280af22 | 11319 | if (d - PL_tokenbuf != len) { |
79072805 LW |
11320 | yylval.ival = OP_GLOB; |
11321 | set_csh(); | |
5db06880 | 11322 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 11323 | if (!s) |
cea2e8a9 | 11324 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
11325 | return s; |
11326 | } | |
395c3793 | 11327 | else { |
9b3023bc | 11328 | bool readline_overriden = FALSE; |
6136c704 | 11329 | GV *gv_readline; |
9b3023bc | 11330 | GV **gvp; |
02aa26ce | 11331 | /* we're in a filehandle read situation */ |
3280af22 | 11332 | d = PL_tokenbuf; |
02aa26ce NT |
11333 | |
11334 | /* turn <> into <ARGV> */ | |
79072805 | 11335 | if (!len) |
689badd5 | 11336 | Copy("ARGV",d,5,char); |
02aa26ce | 11337 | |
9b3023bc | 11338 | /* Check whether readline() is overriden */ |
fafc274c | 11339 | gv_readline = gv_fetchpvs("readline", GV_NOTQUAL, SVt_PVCV); |
6136c704 | 11340 | if ((gv_readline |
ba979b31 | 11341 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) |
9b3023bc | 11342 | || |
017a3ce5 | 11343 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE)) |
9b3023bc | 11344 | && (gv_readline = *gvp) != (GV*)&PL_sv_undef |
ba979b31 | 11345 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
11346 | readline_overriden = TRUE; |
11347 | ||
02aa26ce NT |
11348 | /* if <$fh>, create the ops to turn the variable into a |
11349 | filehandle | |
11350 | */ | |
79072805 | 11351 | if (*d == '$') { |
02aa26ce NT |
11352 | /* try to find it in the pad for this block, otherwise find |
11353 | add symbol table ops | |
11354 | */ | |
bbd11bfc AL |
11355 | const PADOFFSET tmp = pad_findmy(d); |
11356 | if (tmp != NOT_IN_PAD) { | |
00b1698f | 11357 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
6136c704 AL |
11358 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
11359 | HEK * const stashname = HvNAME_HEK(stash); | |
11360 | SV * const sym = sv_2mortal(newSVhek(stashname)); | |
396482e1 | 11361 | sv_catpvs(sym, "::"); |
f558d5af JH |
11362 | sv_catpv(sym, d+1); |
11363 | d = SvPVX(sym); | |
11364 | goto intro_sym; | |
11365 | } | |
11366 | else { | |
6136c704 | 11367 | OP * const o = newOP(OP_PADSV, 0); |
f558d5af | 11368 | o->op_targ = tmp; |
9b3023bc RGS |
11369 | PL_lex_op = readline_overriden |
11370 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11371 | append_elem(OP_LIST, o, | |
11372 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
11373 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 11374 | } |
a0d0e21e LW |
11375 | } |
11376 | else { | |
f558d5af JH |
11377 | GV *gv; |
11378 | ++d; | |
11379 | intro_sym: | |
11380 | gv = gv_fetchpv(d, | |
11381 | (PL_in_eval | |
11382 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 11383 | : GV_ADDMULTI), |
f558d5af | 11384 | SVt_PV); |
9b3023bc RGS |
11385 | PL_lex_op = readline_overriden |
11386 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11387 | append_elem(OP_LIST, | |
11388 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
11389 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11390 | : (OP*)newUNOP(OP_READLINE, 0, | |
11391 | newUNOP(OP_RV2SV, 0, | |
11392 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 11393 | } |
7c6fadd6 RGS |
11394 | if (!readline_overriden) |
11395 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
f5284f61 | 11396 | /* we created the ops in PL_lex_op, so make yylval.ival a null op */ |
79072805 LW |
11397 | yylval.ival = OP_NULL; |
11398 | } | |
02aa26ce NT |
11399 | |
11400 | /* If it's none of the above, it must be a literal filehandle | |
11401 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 11402 | else { |
6136c704 | 11403 | GV * const gv = gv_fetchpv(d, GV_ADD, SVt_PVIO); |
9b3023bc RGS |
11404 | PL_lex_op = readline_overriden |
11405 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11406 | append_elem(OP_LIST, | |
11407 | newGVOP(OP_GV, 0, gv), | |
11408 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11409 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
79072805 LW |
11410 | yylval.ival = OP_NULL; |
11411 | } | |
11412 | } | |
02aa26ce | 11413 | |
79072805 LW |
11414 | return s; |
11415 | } | |
11416 | ||
02aa26ce NT |
11417 | |
11418 | /* scan_str | |
11419 | takes: start position in buffer | |
09bef843 SB |
11420 | keep_quoted preserve \ on the embedded delimiter(s) |
11421 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
11422 | returns: position to continue reading from buffer |
11423 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
11424 | updates the read buffer. | |
11425 | ||
11426 | This subroutine pulls a string out of the input. It is called for: | |
11427 | q single quotes q(literal text) | |
11428 | ' single quotes 'literal text' | |
11429 | qq double quotes qq(interpolate $here please) | |
11430 | " double quotes "interpolate $here please" | |
11431 | qx backticks qx(/bin/ls -l) | |
11432 | ` backticks `/bin/ls -l` | |
11433 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
11434 | m// regexp match m/this/ | |
11435 | s/// regexp substitute s/this/that/ | |
11436 | tr/// string transliterate tr/this/that/ | |
11437 | y/// string transliterate y/this/that/ | |
11438 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 11439 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
11440 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
11441 | ||
11442 | In most of these cases (all but <>, patterns and transliterate) | |
11443 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
11444 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
11445 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
11446 | calls scan_str(). | |
4e553d73 | 11447 | |
02aa26ce NT |
11448 | It skips whitespace before the string starts, and treats the first |
11449 | character as the delimiter. If the delimiter is one of ([{< then | |
11450 | the corresponding "close" character )]}> is used as the closing | |
11451 | delimiter. It allows quoting of delimiters, and if the string has | |
11452 | balanced delimiters ([{<>}]) it allows nesting. | |
11453 | ||
37fd879b HS |
11454 | On success, the SV with the resulting string is put into lex_stuff or, |
11455 | if that is already non-NULL, into lex_repl. The second case occurs only | |
11456 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
11457 | For convenience, the terminating delimiter character is stuffed into | |
11458 | SvIVX of the SV. | |
02aa26ce NT |
11459 | */ |
11460 | ||
76e3520e | 11461 | STATIC char * |
09bef843 | 11462 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 11463 | { |
97aff369 | 11464 | dVAR; |
02aa26ce | 11465 | SV *sv; /* scalar value: string */ |
d3fcec1f | 11466 | const char *tmps; /* temp string, used for delimiter matching */ |
02aa26ce NT |
11467 | register char *s = start; /* current position in the buffer */ |
11468 | register char term; /* terminating character */ | |
11469 | register char *to; /* current position in the sv's data */ | |
11470 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 11471 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
220e2d4e | 11472 | I32 termcode; /* terminating char. code */ |
89ebb4a3 | 11473 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
220e2d4e | 11474 | STRLEN termlen; /* length of terminating string */ |
0331ef07 | 11475 | int last_off = 0; /* last position for nesting bracket */ |
5db06880 NC |
11476 | #ifdef PERL_MAD |
11477 | int stuffstart; | |
11478 | char *tstart; | |
11479 | #endif | |
02aa26ce NT |
11480 | |
11481 | /* skip space before the delimiter */ | |
29595ff2 NC |
11482 | if (isSPACE(*s)) { |
11483 | s = PEEKSPACE(s); | |
11484 | } | |
02aa26ce | 11485 | |
5db06880 | 11486 | #ifdef PERL_MAD |
cd81e915 NC |
11487 | if (PL_realtokenstart >= 0) { |
11488 | stuffstart = PL_realtokenstart; | |
11489 | PL_realtokenstart = -1; | |
5db06880 NC |
11490 | } |
11491 | else | |
11492 | stuffstart = start - SvPVX(PL_linestr); | |
11493 | #endif | |
02aa26ce | 11494 | /* mark where we are, in case we need to report errors */ |
79072805 | 11495 | CLINE; |
02aa26ce NT |
11496 | |
11497 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 11498 | term = *s; |
220e2d4e IH |
11499 | if (!UTF) { |
11500 | termcode = termstr[0] = term; | |
11501 | termlen = 1; | |
11502 | } | |
11503 | else { | |
f3b9ce0f | 11504 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
220e2d4e IH |
11505 | Copy(s, termstr, termlen, U8); |
11506 | if (!UTF8_IS_INVARIANT(term)) | |
11507 | has_utf8 = TRUE; | |
11508 | } | |
b1c7b182 | 11509 | |
02aa26ce | 11510 | /* mark where we are */ |
57843af0 | 11511 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 11512 | PL_multi_open = term; |
02aa26ce NT |
11513 | |
11514 | /* find corresponding closing delimiter */ | |
93a17b20 | 11515 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
220e2d4e IH |
11516 | termcode = termstr[0] = term = tmps[5]; |
11517 | ||
3280af22 | 11518 | PL_multi_close = term; |
79072805 | 11519 | |
561b68a9 SH |
11520 | /* create a new SV to hold the contents. 79 is the SV's initial length. |
11521 | What a random number. */ | |
11522 | sv = newSV(79); | |
ed6116ce | 11523 | sv_upgrade(sv, SVt_PVIV); |
45977657 | 11524 | SvIV_set(sv, termcode); |
a0d0e21e | 11525 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
11526 | |
11527 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 11528 | if (keep_delims) |
220e2d4e IH |
11529 | sv_catpvn(sv, s, termlen); |
11530 | s += termlen; | |
5db06880 NC |
11531 | #ifdef PERL_MAD |
11532 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11533 | if (!PL_thisopen && !keep_delims) { |
11534 | PL_thisopen = newSVpvn(tstart, s - tstart); | |
5db06880 NC |
11535 | stuffstart = s - SvPVX(PL_linestr); |
11536 | } | |
11537 | #endif | |
93a17b20 | 11538 | for (;;) { |
220e2d4e IH |
11539 | if (PL_encoding && !UTF) { |
11540 | bool cont = TRUE; | |
11541 | ||
11542 | while (cont) { | |
95a20fc0 | 11543 | int offset = s - SvPVX_const(PL_linestr); |
66a1b24b | 11544 | const bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f3b9ce0f | 11545 | &offset, (char*)termstr, termlen); |
6136c704 AL |
11546 | const char * const ns = SvPVX_const(PL_linestr) + offset; |
11547 | char * const svlast = SvEND(sv) - 1; | |
220e2d4e IH |
11548 | |
11549 | for (; s < ns; s++) { | |
11550 | if (*s == '\n' && !PL_rsfp) | |
11551 | CopLINE_inc(PL_curcop); | |
11552 | } | |
11553 | if (!found) | |
11554 | goto read_more_line; | |
11555 | else { | |
11556 | /* handle quoted delimiters */ | |
52327caf | 11557 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
f54cb97a | 11558 | const char *t; |
95a20fc0 | 11559 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
220e2d4e IH |
11560 | t--; |
11561 | if ((svlast-1 - t) % 2) { | |
11562 | if (!keep_quoted) { | |
11563 | *(svlast-1) = term; | |
11564 | *svlast = '\0'; | |
11565 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11566 | } | |
11567 | continue; | |
11568 | } | |
11569 | } | |
11570 | if (PL_multi_open == PL_multi_close) { | |
11571 | cont = FALSE; | |
11572 | } | |
11573 | else { | |
f54cb97a AL |
11574 | const char *t; |
11575 | char *w; | |
0331ef07 | 11576 | for (t = w = SvPVX(sv)+last_off; t < svlast; w++, t++) { |
220e2d4e IH |
11577 | /* At here, all closes are "was quoted" one, |
11578 | so we don't check PL_multi_close. */ | |
11579 | if (*t == '\\') { | |
11580 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
11581 | t++; | |
11582 | else | |
11583 | *w++ = *t++; | |
11584 | } | |
11585 | else if (*t == PL_multi_open) | |
11586 | brackets++; | |
11587 | ||
11588 | *w = *t; | |
11589 | } | |
11590 | if (w < t) { | |
11591 | *w++ = term; | |
11592 | *w = '\0'; | |
95a20fc0 | 11593 | SvCUR_set(sv, w - SvPVX_const(sv)); |
220e2d4e | 11594 | } |
0331ef07 | 11595 | last_off = w - SvPVX(sv); |
220e2d4e IH |
11596 | if (--brackets <= 0) |
11597 | cont = FALSE; | |
11598 | } | |
11599 | } | |
11600 | } | |
11601 | if (!keep_delims) { | |
11602 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11603 | *SvEND(sv) = '\0'; | |
11604 | } | |
11605 | break; | |
11606 | } | |
11607 | ||
02aa26ce | 11608 | /* extend sv if need be */ |
3280af22 | 11609 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 11610 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 11611 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 11612 | |
02aa26ce | 11613 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
11614 | if (PL_multi_open == PL_multi_close) { |
11615 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 11616 | /* embedded newlines increment the current line number */ |
3280af22 | 11617 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11618 | CopLINE_inc(PL_curcop); |
02aa26ce | 11619 | /* handle quoted delimiters */ |
3280af22 | 11620 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 11621 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 11622 | s++; |
02aa26ce | 11623 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
11624 | else |
11625 | *to++ = *s++; | |
11626 | } | |
02aa26ce NT |
11627 | /* terminate when run out of buffer (the for() condition), or |
11628 | have found the terminator */ | |
220e2d4e IH |
11629 | else if (*s == term) { |
11630 | if (termlen == 1) | |
11631 | break; | |
f3b9ce0f | 11632 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
220e2d4e IH |
11633 | break; |
11634 | } | |
63cd0674 | 11635 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11636 | has_utf8 = TRUE; |
93a17b20 LW |
11637 | *to = *s; |
11638 | } | |
11639 | } | |
02aa26ce NT |
11640 | |
11641 | /* if the terminator isn't the same as the start character (e.g., | |
11642 | matched brackets), we have to allow more in the quoting, and | |
11643 | be prepared for nested brackets. | |
11644 | */ | |
93a17b20 | 11645 | else { |
02aa26ce | 11646 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 11647 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 11648 | /* embedded newlines increment the line count */ |
3280af22 | 11649 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11650 | CopLINE_inc(PL_curcop); |
02aa26ce | 11651 | /* backslashes can escape the open or closing characters */ |
3280af22 | 11652 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
11653 | if (!keep_quoted && |
11654 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
11655 | s++; |
11656 | else | |
11657 | *to++ = *s++; | |
11658 | } | |
02aa26ce | 11659 | /* allow nested opens and closes */ |
3280af22 | 11660 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 11661 | break; |
3280af22 | 11662 | else if (*s == PL_multi_open) |
93a17b20 | 11663 | brackets++; |
63cd0674 | 11664 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11665 | has_utf8 = TRUE; |
93a17b20 LW |
11666 | *to = *s; |
11667 | } | |
11668 | } | |
02aa26ce | 11669 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 11670 | *to = '\0'; |
95a20fc0 | 11671 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 11672 | |
02aa26ce NT |
11673 | /* |
11674 | * this next chunk reads more into the buffer if we're not done yet | |
11675 | */ | |
11676 | ||
b1c7b182 GS |
11677 | if (s < PL_bufend) |
11678 | break; /* handle case where we are done yet :-) */ | |
79072805 | 11679 | |
6a27c188 | 11680 | #ifndef PERL_STRICT_CR |
95a20fc0 | 11681 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
11682 | if ((to[-2] == '\r' && to[-1] == '\n') || |
11683 | (to[-2] == '\n' && to[-1] == '\r')) | |
11684 | { | |
f63a84b2 LW |
11685 | to[-2] = '\n'; |
11686 | to--; | |
95a20fc0 | 11687 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
11688 | } |
11689 | else if (to[-1] == '\r') | |
11690 | to[-1] = '\n'; | |
11691 | } | |
95a20fc0 | 11692 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
11693 | to[-1] = '\n'; |
11694 | #endif | |
11695 | ||
220e2d4e | 11696 | read_more_line: |
02aa26ce NT |
11697 | /* if we're out of file, or a read fails, bail and reset the current |
11698 | line marker so we can report where the unterminated string began | |
11699 | */ | |
5db06880 NC |
11700 | #ifdef PERL_MAD |
11701 | if (PL_madskills) { | |
c35e046a | 11702 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 NC |
11703 | if (PL_thisstuff) |
11704 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11705 | else |
cd81e915 | 11706 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11707 | } |
11708 | #endif | |
3280af22 NIS |
11709 | if (!PL_rsfp || |
11710 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { | |
c07a80fd | 11711 | sv_free(sv); |
eb160463 | 11712 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
bd61b366 | 11713 | return NULL; |
79072805 | 11714 | } |
5db06880 NC |
11715 | #ifdef PERL_MAD |
11716 | stuffstart = 0; | |
11717 | #endif | |
02aa26ce | 11718 | /* we read a line, so increment our line counter */ |
57843af0 | 11719 | CopLINE_inc(PL_curcop); |
a0ed51b3 | 11720 | |
02aa26ce | 11721 | /* update debugger info */ |
80a702cd RGS |
11722 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
11723 | update_debugger_info_sv(PL_linestr); | |
a0ed51b3 | 11724 | |
3280af22 NIS |
11725 | /* having changed the buffer, we must update PL_bufend */ |
11726 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11727 | PL_last_lop = PL_last_uni = NULL; |
378cc40b | 11728 | } |
4e553d73 | 11729 | |
02aa26ce NT |
11730 | /* at this point, we have successfully read the delimited string */ |
11731 | ||
220e2d4e | 11732 | if (!PL_encoding || UTF) { |
5db06880 NC |
11733 | #ifdef PERL_MAD |
11734 | if (PL_madskills) { | |
c35e046a AL |
11735 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
11736 | const int len = s - start; | |
cd81e915 | 11737 | if (PL_thisstuff) |
c35e046a | 11738 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11739 | else |
c35e046a | 11740 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11741 | if (!PL_thisclose && !keep_delims) |
11742 | PL_thisclose = newSVpvn(s,termlen); | |
5db06880 NC |
11743 | } |
11744 | #endif | |
11745 | ||
220e2d4e IH |
11746 | if (keep_delims) |
11747 | sv_catpvn(sv, s, termlen); | |
11748 | s += termlen; | |
11749 | } | |
5db06880 NC |
11750 | #ifdef PERL_MAD |
11751 | else { | |
11752 | if (PL_madskills) { | |
c35e046a AL |
11753 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
11754 | const int len = s - tstart - termlen; | |
cd81e915 | 11755 | if (PL_thisstuff) |
c35e046a | 11756 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11757 | else |
c35e046a | 11758 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11759 | if (!PL_thisclose && !keep_delims) |
11760 | PL_thisclose = newSVpvn(s - termlen,termlen); | |
5db06880 NC |
11761 | } |
11762 | } | |
11763 | #endif | |
220e2d4e | 11764 | if (has_utf8 || PL_encoding) |
b1c7b182 | 11765 | SvUTF8_on(sv); |
d0063567 | 11766 | |
57843af0 | 11767 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
11768 | |
11769 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
11770 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
11771 | SvLEN_set(sv, SvCUR(sv) + 1); | |
b7e9a5c2 | 11772 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 11773 | } |
02aa26ce NT |
11774 | |
11775 | /* decide whether this is the first or second quoted string we've read | |
11776 | for this op | |
11777 | */ | |
4e553d73 | 11778 | |
3280af22 NIS |
11779 | if (PL_lex_stuff) |
11780 | PL_lex_repl = sv; | |
79072805 | 11781 | else |
3280af22 | 11782 | PL_lex_stuff = sv; |
378cc40b LW |
11783 | return s; |
11784 | } | |
11785 | ||
02aa26ce NT |
11786 | /* |
11787 | scan_num | |
11788 | takes: pointer to position in buffer | |
11789 | returns: pointer to new position in buffer | |
11790 | side-effects: builds ops for the constant in yylval.op | |
11791 | ||
11792 | Read a number in any of the formats that Perl accepts: | |
11793 | ||
7fd134d9 JH |
11794 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
11795 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
11796 | 0b[01](_?[01])* |
11797 | 0[0-7](_?[0-7])* | |
11798 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 11799 | |
3280af22 | 11800 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
11801 | thing it reads. |
11802 | ||
11803 | If it reads a number without a decimal point or an exponent, it will | |
11804 | try converting the number to an integer and see if it can do so | |
11805 | without loss of precision. | |
11806 | */ | |
4e553d73 | 11807 | |
378cc40b | 11808 | char * |
bfed75c6 | 11809 | Perl_scan_num(pTHX_ const char *start, YYSTYPE* lvalp) |
378cc40b | 11810 | { |
97aff369 | 11811 | dVAR; |
bfed75c6 | 11812 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
11813 | register char *d; /* destination in temp buffer */ |
11814 | register char *e; /* end of temp buffer */ | |
86554af2 | 11815 | NV nv; /* number read, as a double */ |
a0714e2c | 11816 | SV *sv = NULL; /* place to put the converted number */ |
a86a20aa | 11817 | bool floatit; /* boolean: int or float? */ |
cbbf8932 | 11818 | const char *lastub = NULL; /* position of last underbar */ |
bfed75c6 | 11819 | static char const number_too_long[] = "Number too long"; |
378cc40b | 11820 | |
02aa26ce NT |
11821 | /* We use the first character to decide what type of number this is */ |
11822 | ||
378cc40b | 11823 | switch (*s) { |
79072805 | 11824 | default: |
cea2e8a9 | 11825 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 11826 | |
02aa26ce | 11827 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 11828 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
11829 | case '0': |
11830 | { | |
02aa26ce NT |
11831 | /* variables: |
11832 | u holds the "number so far" | |
4f19785b WSI |
11833 | shift the power of 2 of the base |
11834 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
11835 | overflowed was the number more than we can hold? |
11836 | ||
11837 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
11838 | we in octal/hex/binary?" indicator to disallow hex characters |
11839 | when in octal mode. | |
02aa26ce | 11840 | */ |
9e24b6e2 JH |
11841 | NV n = 0.0; |
11842 | UV u = 0; | |
79072805 | 11843 | I32 shift; |
9e24b6e2 | 11844 | bool overflowed = FALSE; |
61f33854 | 11845 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
27da23d5 JH |
11846 | static const NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
11847 | static const char* const bases[5] = | |
11848 | { "", "binary", "", "octal", "hexadecimal" }; | |
11849 | static const char* const Bases[5] = | |
11850 | { "", "Binary", "", "Octal", "Hexadecimal" }; | |
11851 | static const char* const maxima[5] = | |
11852 | { "", | |
11853 | "0b11111111111111111111111111111111", | |
11854 | "", | |
11855 | "037777777777", | |
11856 | "0xffffffff" }; | |
bfed75c6 | 11857 | const char *base, *Base, *max; |
378cc40b | 11858 | |
02aa26ce | 11859 | /* check for hex */ |
378cc40b LW |
11860 | if (s[1] == 'x') { |
11861 | shift = 4; | |
11862 | s += 2; | |
61f33854 | 11863 | just_zero = FALSE; |
4f19785b WSI |
11864 | } else if (s[1] == 'b') { |
11865 | shift = 1; | |
11866 | s += 2; | |
61f33854 | 11867 | just_zero = FALSE; |
378cc40b | 11868 | } |
02aa26ce | 11869 | /* check for a decimal in disguise */ |
b78218b7 | 11870 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 11871 | goto decimal; |
02aa26ce | 11872 | /* so it must be octal */ |
928753ea | 11873 | else { |
378cc40b | 11874 | shift = 3; |
928753ea JH |
11875 | s++; |
11876 | } | |
11877 | ||
11878 | if (*s == '_') { | |
11879 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11880 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11881 | "Misplaced _ in number"); |
11882 | lastub = s++; | |
11883 | } | |
9e24b6e2 JH |
11884 | |
11885 | base = bases[shift]; | |
11886 | Base = Bases[shift]; | |
11887 | max = maxima[shift]; | |
02aa26ce | 11888 | |
4f19785b | 11889 | /* read the rest of the number */ |
378cc40b | 11890 | for (;;) { |
9e24b6e2 | 11891 | /* x is used in the overflow test, |
893fe2c2 | 11892 | b is the digit we're adding on. */ |
9e24b6e2 | 11893 | UV x, b; |
55497cff | 11894 | |
378cc40b | 11895 | switch (*s) { |
02aa26ce NT |
11896 | |
11897 | /* if we don't mention it, we're done */ | |
378cc40b LW |
11898 | default: |
11899 | goto out; | |
02aa26ce | 11900 | |
928753ea | 11901 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 11902 | case '_': |
041457d9 | 11903 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 11904 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11905 | "Misplaced _ in number"); |
11906 | lastub = s++; | |
de3bb511 | 11907 | break; |
02aa26ce NT |
11908 | |
11909 | /* 8 and 9 are not octal */ | |
378cc40b | 11910 | case '8': case '9': |
4f19785b | 11911 | if (shift == 3) |
cea2e8a9 | 11912 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 11913 | /* FALL THROUGH */ |
02aa26ce NT |
11914 | |
11915 | /* octal digits */ | |
4f19785b | 11916 | case '2': case '3': case '4': |
378cc40b | 11917 | case '5': case '6': case '7': |
4f19785b | 11918 | if (shift == 1) |
cea2e8a9 | 11919 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
11920 | /* FALL THROUGH */ |
11921 | ||
11922 | case '0': case '1': | |
02aa26ce | 11923 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 11924 | goto digit; |
02aa26ce NT |
11925 | |
11926 | /* hex digits */ | |
378cc40b LW |
11927 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
11928 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 11929 | /* make sure they said 0x */ |
378cc40b LW |
11930 | if (shift != 4) |
11931 | goto out; | |
55497cff | 11932 | b = (*s++ & 7) + 9; |
02aa26ce NT |
11933 | |
11934 | /* Prepare to put the digit we have onto the end | |
11935 | of the number so far. We check for overflows. | |
11936 | */ | |
11937 | ||
55497cff | 11938 | digit: |
61f33854 | 11939 | just_zero = FALSE; |
9e24b6e2 JH |
11940 | if (!overflowed) { |
11941 | x = u << shift; /* make room for the digit */ | |
11942 | ||
11943 | if ((x >> shift) != u | |
11944 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
11945 | overflowed = TRUE; |
11946 | n = (NV) u; | |
767a6a26 | 11947 | if (ckWARN_d(WARN_OVERFLOW)) |
9014280d | 11948 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), |
9e24b6e2 JH |
11949 | "Integer overflow in %s number", |
11950 | base); | |
11951 | } else | |
11952 | u = x | b; /* add the digit to the end */ | |
11953 | } | |
11954 | if (overflowed) { | |
11955 | n *= nvshift[shift]; | |
11956 | /* If an NV has not enough bits in its | |
11957 | * mantissa to represent an UV this summing of | |
11958 | * small low-order numbers is a waste of time | |
11959 | * (because the NV cannot preserve the | |
11960 | * low-order bits anyway): we could just | |
11961 | * remember when did we overflow and in the | |
11962 | * end just multiply n by the right | |
11963 | * amount. */ | |
11964 | n += (NV) b; | |
55497cff | 11965 | } |
378cc40b LW |
11966 | break; |
11967 | } | |
11968 | } | |
02aa26ce NT |
11969 | |
11970 | /* if we get here, we had success: make a scalar value from | |
11971 | the number. | |
11972 | */ | |
378cc40b | 11973 | out: |
928753ea JH |
11974 | |
11975 | /* final misplaced underbar check */ | |
11976 | if (s[-1] == '_') { | |
11977 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11978 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
11979 | } |
11980 | ||
561b68a9 | 11981 | sv = newSV(0); |
9e24b6e2 | 11982 | if (overflowed) { |
041457d9 | 11983 | if (n > 4294967295.0 && ckWARN(WARN_PORTABLE)) |
9014280d | 11984 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
11985 | "%s number > %s non-portable", |
11986 | Base, max); | |
11987 | sv_setnv(sv, n); | |
11988 | } | |
11989 | else { | |
15041a67 | 11990 | #if UVSIZE > 4 |
041457d9 | 11991 | if (u > 0xffffffff && ckWARN(WARN_PORTABLE)) |
9014280d | 11992 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
11993 | "%s number > %s non-portable", |
11994 | Base, max); | |
2cc4c2dc | 11995 | #endif |
9e24b6e2 JH |
11996 | sv_setuv(sv, u); |
11997 | } | |
61f33854 | 11998 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
bfed75c6 | 11999 | sv = new_constant(start, s - start, "integer", |
a0714e2c | 12000 | sv, NULL, NULL); |
61f33854 | 12001 | else if (PL_hints & HINT_NEW_BINARY) |
a0714e2c | 12002 | sv = new_constant(start, s - start, "binary", sv, NULL, NULL); |
378cc40b LW |
12003 | } |
12004 | break; | |
02aa26ce NT |
12005 | |
12006 | /* | |
12007 | handle decimal numbers. | |
12008 | we're also sent here when we read a 0 as the first digit | |
12009 | */ | |
378cc40b LW |
12010 | case '1': case '2': case '3': case '4': case '5': |
12011 | case '6': case '7': case '8': case '9': case '.': | |
12012 | decimal: | |
3280af22 NIS |
12013 | d = PL_tokenbuf; |
12014 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 12015 | floatit = FALSE; |
02aa26ce NT |
12016 | |
12017 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 12018 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 12019 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
12020 | if -w is on |
12021 | */ | |
93a17b20 | 12022 | if (*s == '_') { |
041457d9 | 12023 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12024 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12025 | "Misplaced _ in number"); |
12026 | lastub = s++; | |
93a17b20 | 12027 | } |
fc36a67e | 12028 | else { |
02aa26ce | 12029 | /* check for end of fixed-length buffer */ |
fc36a67e | 12030 | if (d >= e) |
cea2e8a9 | 12031 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 12032 | /* if we're ok, copy the character */ |
378cc40b | 12033 | *d++ = *s++; |
fc36a67e | 12034 | } |
378cc40b | 12035 | } |
02aa26ce NT |
12036 | |
12037 | /* final misplaced underbar check */ | |
928753ea | 12038 | if (lastub && s == lastub + 1) { |
d008e5eb | 12039 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 12040 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 12041 | } |
02aa26ce NT |
12042 | |
12043 | /* read a decimal portion if there is one. avoid | |
12044 | 3..5 being interpreted as the number 3. followed | |
12045 | by .5 | |
12046 | */ | |
2f3197b3 | 12047 | if (*s == '.' && s[1] != '.') { |
79072805 | 12048 | floatit = TRUE; |
378cc40b | 12049 | *d++ = *s++; |
02aa26ce | 12050 | |
928753ea JH |
12051 | if (*s == '_') { |
12052 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12053 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12054 | "Misplaced _ in number"); |
12055 | lastub = s; | |
12056 | } | |
12057 | ||
12058 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 12059 | */ |
fc36a67e | 12060 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 12061 | /* fixed length buffer check */ |
fc36a67e | 12062 | if (d >= e) |
cea2e8a9 | 12063 | Perl_croak(aTHX_ number_too_long); |
928753ea | 12064 | if (*s == '_') { |
041457d9 | 12065 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12066 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12067 | "Misplaced _ in number"); |
12068 | lastub = s; | |
12069 | } | |
12070 | else | |
fc36a67e | 12071 | *d++ = *s; |
378cc40b | 12072 | } |
928753ea JH |
12073 | /* fractional part ending in underbar? */ |
12074 | if (s[-1] == '_') { | |
12075 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12076 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12077 | "Misplaced _ in number"); |
12078 | } | |
dd629d5b GS |
12079 | if (*s == '.' && isDIGIT(s[1])) { |
12080 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 12081 | s = start; |
dd629d5b GS |
12082 | goto vstring; |
12083 | } | |
378cc40b | 12084 | } |
02aa26ce NT |
12085 | |
12086 | /* read exponent part, if present */ | |
3792a11b | 12087 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
12088 | floatit = TRUE; |
12089 | s++; | |
02aa26ce NT |
12090 | |
12091 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 12092 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 12093 | |
7fd134d9 JH |
12094 | /* stray preinitial _ */ |
12095 | if (*s == '_') { | |
12096 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12097 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12098 | "Misplaced _ in number"); |
12099 | lastub = s++; | |
12100 | } | |
12101 | ||
02aa26ce | 12102 | /* allow positive or negative exponent */ |
378cc40b LW |
12103 | if (*s == '+' || *s == '-') |
12104 | *d++ = *s++; | |
02aa26ce | 12105 | |
7fd134d9 JH |
12106 | /* stray initial _ */ |
12107 | if (*s == '_') { | |
12108 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12109 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12110 | "Misplaced _ in number"); |
12111 | lastub = s++; | |
12112 | } | |
12113 | ||
7fd134d9 JH |
12114 | /* read digits of exponent */ |
12115 | while (isDIGIT(*s) || *s == '_') { | |
12116 | if (isDIGIT(*s)) { | |
12117 | if (d >= e) | |
12118 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 12119 | *d++ = *s++; |
7fd134d9 JH |
12120 | } |
12121 | else { | |
041457d9 DM |
12122 | if (((lastub && s == lastub + 1) || |
12123 | (!isDIGIT(s[1]) && s[1] != '_')) | |
12124 | && ckWARN(WARN_SYNTAX)) | |
9014280d | 12125 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 | 12126 | "Misplaced _ in number"); |
b3b48e3e | 12127 | lastub = s++; |
7fd134d9 | 12128 | } |
7fd134d9 | 12129 | } |
378cc40b | 12130 | } |
02aa26ce | 12131 | |
02aa26ce NT |
12132 | |
12133 | /* make an sv from the string */ | |
561b68a9 | 12134 | sv = newSV(0); |
097ee67d | 12135 | |
0b7fceb9 | 12136 | /* |
58bb9ec3 NC |
12137 | We try to do an integer conversion first if no characters |
12138 | indicating "float" have been found. | |
0b7fceb9 MU |
12139 | */ |
12140 | ||
12141 | if (!floatit) { | |
58bb9ec3 | 12142 | UV uv; |
6136c704 | 12143 | const int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); |
58bb9ec3 NC |
12144 | |
12145 | if (flags == IS_NUMBER_IN_UV) { | |
12146 | if (uv <= IV_MAX) | |
86554af2 | 12147 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 12148 | else |
c239479b | 12149 | sv_setuv(sv, uv); |
58bb9ec3 NC |
12150 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
12151 | if (uv <= (UV) IV_MIN) | |
12152 | sv_setiv(sv, -(IV)uv); | |
12153 | else | |
12154 | floatit = TRUE; | |
12155 | } else | |
12156 | floatit = TRUE; | |
12157 | } | |
0b7fceb9 | 12158 | if (floatit) { |
58bb9ec3 NC |
12159 | /* terminate the string */ |
12160 | *d = '\0'; | |
86554af2 JH |
12161 | nv = Atof(PL_tokenbuf); |
12162 | sv_setnv(sv, nv); | |
12163 | } | |
86554af2 | 12164 | |
b8403495 JH |
12165 | if ( floatit ? (PL_hints & HINT_NEW_FLOAT) : |
12166 | (PL_hints & HINT_NEW_INTEGER) ) | |
10edeb5d JH |
12167 | sv = new_constant(PL_tokenbuf, |
12168 | d - PL_tokenbuf, | |
12169 | (const char *) | |
b8403495 | 12170 | (floatit ? "float" : "integer"), |
a0714e2c | 12171 | sv, NULL, NULL); |
378cc40b | 12172 | break; |
0b7fceb9 | 12173 | |
e312add1 | 12174 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 12175 | case 'v': |
dd629d5b | 12176 | vstring: |
561b68a9 | 12177 | sv = newSV(5); /* preallocate storage space */ |
b0f01acb | 12178 | s = scan_vstring(s,sv); |
a7cb1f99 | 12179 | break; |
79072805 | 12180 | } |
a687059c | 12181 | |
02aa26ce NT |
12182 | /* make the op for the constant and return */ |
12183 | ||
a86a20aa | 12184 | if (sv) |
b73d6f50 | 12185 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 12186 | else |
5f66b61c | 12187 | lvalp->opval = NULL; |
a687059c | 12188 | |
73d840c0 | 12189 | return (char *)s; |
378cc40b LW |
12190 | } |
12191 | ||
76e3520e | 12192 | STATIC char * |
cea2e8a9 | 12193 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 12194 | { |
97aff369 | 12195 | dVAR; |
79072805 | 12196 | register char *eol; |
378cc40b | 12197 | register char *t; |
6136c704 | 12198 | SV * const stuff = newSVpvs(""); |
79072805 | 12199 | bool needargs = FALSE; |
c5ee2135 | 12200 | bool eofmt = FALSE; |
5db06880 NC |
12201 | #ifdef PERL_MAD |
12202 | char *tokenstart = s; | |
12203 | SV* savewhite; | |
12204 | ||
12205 | if (PL_madskills) { | |
cd81e915 NC |
12206 | savewhite = PL_thiswhite; |
12207 | PL_thiswhite = 0; | |
5db06880 NC |
12208 | } |
12209 | #endif | |
378cc40b | 12210 | |
79072805 | 12211 | while (!needargs) { |
a1b95068 | 12212 | if (*s == '.') { |
c35e046a | 12213 | t = s+1; |
51882d45 | 12214 | #ifdef PERL_STRICT_CR |
c35e046a AL |
12215 | while (SPACE_OR_TAB(*t)) |
12216 | t++; | |
51882d45 | 12217 | #else |
c35e046a AL |
12218 | while (SPACE_OR_TAB(*t) || *t == '\r') |
12219 | t++; | |
51882d45 | 12220 | #endif |
c5ee2135 WL |
12221 | if (*t == '\n' || t == PL_bufend) { |
12222 | eofmt = TRUE; | |
79072805 | 12223 | break; |
c5ee2135 | 12224 | } |
79072805 | 12225 | } |
3280af22 | 12226 | if (PL_in_eval && !PL_rsfp) { |
07409e01 | 12227 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 12228 | if (!eol++) |
3280af22 | 12229 | eol = PL_bufend; |
0f85fab0 LW |
12230 | } |
12231 | else | |
3280af22 | 12232 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 12233 | if (*s != '#') { |
a0d0e21e LW |
12234 | for (t = s; t < eol; t++) { |
12235 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
12236 | needargs = FALSE; | |
12237 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 12238 | } |
a0d0e21e LW |
12239 | if (*t == '@' || *t == '^') |
12240 | needargs = TRUE; | |
378cc40b | 12241 | } |
7121b347 MG |
12242 | if (eol > s) { |
12243 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 12244 | #ifndef PERL_STRICT_CR |
7121b347 MG |
12245 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
12246 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
12247 | end[-2] = '\n'; | |
12248 | end[-1] = '\0'; | |
b162af07 | 12249 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 12250 | } |
2dc4c65b | 12251 | #endif |
7121b347 MG |
12252 | } |
12253 | else | |
12254 | break; | |
79072805 | 12255 | } |
95a20fc0 | 12256 | s = (char*)eol; |
3280af22 | 12257 | if (PL_rsfp) { |
5db06880 NC |
12258 | #ifdef PERL_MAD |
12259 | if (PL_madskills) { | |
cd81e915 NC |
12260 | if (PL_thistoken) |
12261 | sv_catpvn(PL_thistoken, tokenstart, PL_bufend - tokenstart); | |
5db06880 | 12262 | else |
cd81e915 | 12263 | PL_thistoken = newSVpvn(tokenstart, PL_bufend - tokenstart); |
5db06880 NC |
12264 | } |
12265 | #endif | |
3280af22 | 12266 | s = filter_gets(PL_linestr, PL_rsfp, 0); |
5db06880 NC |
12267 | #ifdef PERL_MAD |
12268 | tokenstart = PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
12269 | #else | |
3280af22 | 12270 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); |
5db06880 | 12271 | #endif |
3280af22 | 12272 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); |
bd61b366 | 12273 | PL_last_lop = PL_last_uni = NULL; |
79072805 | 12274 | if (!s) { |
3280af22 | 12275 | s = PL_bufptr; |
378cc40b LW |
12276 | break; |
12277 | } | |
378cc40b | 12278 | } |
463ee0b2 | 12279 | incline(s); |
79072805 | 12280 | } |
a0d0e21e LW |
12281 | enough: |
12282 | if (SvCUR(stuff)) { | |
3280af22 | 12283 | PL_expect = XTERM; |
79072805 | 12284 | if (needargs) { |
3280af22 | 12285 | PL_lex_state = LEX_NORMAL; |
cd81e915 | 12286 | start_force(PL_curforce); |
9ded7720 | 12287 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 LW |
12288 | force_next(','); |
12289 | } | |
a0d0e21e | 12290 | else |
3280af22 | 12291 | PL_lex_state = LEX_FORMLINE; |
1bd51a4c | 12292 | if (!IN_BYTES) { |
95a20fc0 | 12293 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
1bd51a4c IH |
12294 | SvUTF8_on(stuff); |
12295 | else if (PL_encoding) | |
12296 | sv_recode_to_utf8(stuff, PL_encoding); | |
12297 | } | |
cd81e915 | 12298 | start_force(PL_curforce); |
9ded7720 | 12299 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 12300 | force_next(THING); |
cd81e915 | 12301 | start_force(PL_curforce); |
9ded7720 | 12302 | NEXTVAL_NEXTTOKE.ival = OP_FORMLINE; |
79072805 | 12303 | force_next(LSTOP); |
378cc40b | 12304 | } |
79072805 | 12305 | else { |
8990e307 | 12306 | SvREFCNT_dec(stuff); |
c5ee2135 WL |
12307 | if (eofmt) |
12308 | PL_lex_formbrack = 0; | |
3280af22 | 12309 | PL_bufptr = s; |
79072805 | 12310 | } |
5db06880 NC |
12311 | #ifdef PERL_MAD |
12312 | if (PL_madskills) { | |
cd81e915 NC |
12313 | if (PL_thistoken) |
12314 | sv_catpvn(PL_thistoken, tokenstart, s - tokenstart); | |
5db06880 | 12315 | else |
cd81e915 NC |
12316 | PL_thistoken = newSVpvn(tokenstart, s - tokenstart); |
12317 | PL_thiswhite = savewhite; | |
5db06880 NC |
12318 | } |
12319 | #endif | |
79072805 | 12320 | return s; |
378cc40b | 12321 | } |
a687059c | 12322 | |
76e3520e | 12323 | STATIC void |
cea2e8a9 | 12324 | S_set_csh(pTHX) |
a687059c | 12325 | { |
ae986130 | 12326 | #ifdef CSH |
97aff369 | 12327 | dVAR; |
3280af22 NIS |
12328 | if (!PL_cshlen) |
12329 | PL_cshlen = strlen(PL_cshname); | |
5f66b61c | 12330 | #else |
b2675967 | 12331 | #if defined(USE_ITHREADS) |
96a5add6 | 12332 | PERL_UNUSED_CONTEXT; |
ae986130 | 12333 | #endif |
b2675967 | 12334 | #endif |
a687059c | 12335 | } |
463ee0b2 | 12336 | |
ba6d6ac9 | 12337 | I32 |
864dbfa3 | 12338 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 12339 | { |
97aff369 | 12340 | dVAR; |
a3b680e6 | 12341 | const I32 oldsavestack_ix = PL_savestack_ix; |
6136c704 | 12342 | CV* const outsidecv = PL_compcv; |
8990e307 | 12343 | |
3280af22 NIS |
12344 | if (PL_compcv) { |
12345 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 12346 | } |
7766f137 | 12347 | SAVEI32(PL_subline); |
3280af22 | 12348 | save_item(PL_subname); |
3280af22 | 12349 | SAVESPTR(PL_compcv); |
3280af22 | 12350 | |
561b68a9 | 12351 | PL_compcv = (CV*)newSV(0); |
3280af22 NIS |
12352 | sv_upgrade((SV *)PL_compcv, is_format ? SVt_PVFM : SVt_PVCV); |
12353 | CvFLAGS(PL_compcv) |= flags; | |
12354 | ||
57843af0 | 12355 | PL_subline = CopLINE(PL_curcop); |
dd2155a4 | 12356 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
b37c2d43 | 12357 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc_simple(outsidecv); |
a3985cdc | 12358 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
748a9306 | 12359 | |
8990e307 LW |
12360 | return oldsavestack_ix; |
12361 | } | |
12362 | ||
084592ab CN |
12363 | #ifdef __SC__ |
12364 | #pragma segment Perl_yylex | |
12365 | #endif | |
8990e307 | 12366 | int |
bfed75c6 | 12367 | Perl_yywarn(pTHX_ const char *s) |
8990e307 | 12368 | { |
97aff369 | 12369 | dVAR; |
faef0170 | 12370 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 12371 | yyerror(s); |
faef0170 | 12372 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 12373 | return 0; |
8990e307 LW |
12374 | } |
12375 | ||
12376 | int | |
bfed75c6 | 12377 | Perl_yyerror(pTHX_ const char *s) |
463ee0b2 | 12378 | { |
97aff369 | 12379 | dVAR; |
bfed75c6 AL |
12380 | const char *where = NULL; |
12381 | const char *context = NULL; | |
68dc0745 | 12382 | int contlen = -1; |
46fc3d4c | 12383 | SV *msg; |
463ee0b2 | 12384 | |
3280af22 | 12385 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 12386 | where = "at EOF"; |
8bcfe651 TM |
12387 | else if (PL_oldoldbufptr && PL_bufptr > PL_oldoldbufptr && |
12388 | PL_bufptr - PL_oldoldbufptr < 200 && PL_oldoldbufptr != PL_oldbufptr && | |
12389 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12390 | /* |
12391 | Only for NetWare: | |
12392 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12393 | when the script has error such as not having the closing quotes like: | |
12394 | if ($var eq "value) | |
12395 | Checking of white spaces is anyway done in NetWare code. | |
12396 | */ | |
12397 | #ifndef NETWARE | |
3280af22 NIS |
12398 | while (isSPACE(*PL_oldoldbufptr)) |
12399 | PL_oldoldbufptr++; | |
f355267c | 12400 | #endif |
3280af22 NIS |
12401 | context = PL_oldoldbufptr; |
12402 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 12403 | } |
8bcfe651 TM |
12404 | else if (PL_oldbufptr && PL_bufptr > PL_oldbufptr && |
12405 | PL_bufptr - PL_oldbufptr < 200 && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12406 | /* |
12407 | Only for NetWare: | |
12408 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12409 | when the script has error such as not having the closing quotes like: | |
12410 | if ($var eq "value) | |
12411 | Checking of white spaces is anyway done in NetWare code. | |
12412 | */ | |
12413 | #ifndef NETWARE | |
3280af22 NIS |
12414 | while (isSPACE(*PL_oldbufptr)) |
12415 | PL_oldbufptr++; | |
f355267c | 12416 | #endif |
3280af22 NIS |
12417 | context = PL_oldbufptr; |
12418 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
12419 | } |
12420 | else if (yychar > 255) | |
68dc0745 | 12421 | where = "next token ???"; |
12fbd33b | 12422 | else if (yychar == -2) { /* YYEMPTY */ |
3280af22 NIS |
12423 | if (PL_lex_state == LEX_NORMAL || |
12424 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 12425 | where = "at end of line"; |
3280af22 | 12426 | else if (PL_lex_inpat) |
68dc0745 | 12427 | where = "within pattern"; |
463ee0b2 | 12428 | else |
68dc0745 | 12429 | where = "within string"; |
463ee0b2 | 12430 | } |
46fc3d4c | 12431 | else { |
6136c704 | 12432 | SV * const where_sv = sv_2mortal(newSVpvs("next char ")); |
46fc3d4c | 12433 | if (yychar < 32) |
cea2e8a9 | 12434 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
46fc3d4c | 12435 | else if (isPRINT_LC(yychar)) |
cea2e8a9 | 12436 | Perl_sv_catpvf(aTHX_ where_sv, "%c", yychar); |
463ee0b2 | 12437 | else |
cea2e8a9 | 12438 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
95a20fc0 | 12439 | where = SvPVX_const(where_sv); |
463ee0b2 | 12440 | } |
46fc3d4c | 12441 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 12442 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 12443 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 12444 | if (context) |
cea2e8a9 | 12445 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 12446 | else |
cea2e8a9 | 12447 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 12448 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 12449 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 12450 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 12451 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 12452 | PL_multi_end = 0; |
a0d0e21e | 12453 | } |
56da5a46 | 12454 | if (PL_in_eval & EVAL_WARNONLY && ckWARN_d(WARN_SYNTAX)) |
95b63a38 | 12455 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, (void*)msg); |
463ee0b2 | 12456 | else |
5a844595 | 12457 | qerror(msg); |
c7d6bfb2 GS |
12458 | if (PL_error_count >= 10) { |
12459 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 12460 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
95b63a38 | 12461 | (void*)ERRSV, OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
12462 | else |
12463 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 12464 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 12465 | } |
3280af22 | 12466 | PL_in_my = 0; |
5c284bb0 | 12467 | PL_in_my_stash = NULL; |
463ee0b2 LW |
12468 | return 0; |
12469 | } | |
084592ab CN |
12470 | #ifdef __SC__ |
12471 | #pragma segment Main | |
12472 | #endif | |
4e35701f | 12473 | |
b250498f | 12474 | STATIC char* |
3ae08724 | 12475 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 12476 | { |
97aff369 | 12477 | dVAR; |
f54cb97a | 12478 | const STRLEN slen = SvCUR(PL_linestr); |
7aa207d6 | 12479 | switch (s[0]) { |
4e553d73 NIS |
12480 | case 0xFF: |
12481 | if (s[1] == 0xFE) { | |
7aa207d6 | 12482 | /* UTF-16 little-endian? (or UTF32-LE?) */ |
3ae08724 | 12483 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
7aa207d6 | 12484 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-LE"); |
01ec43d0 | 12485 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12486 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF16-LE script encoding (BOM)\n"); |
3ae08724 | 12487 | s += 2; |
7aa207d6 | 12488 | utf16le: |
dea0fc0b JH |
12489 | if (PL_bufend > (char*)s) { |
12490 | U8 *news; | |
12491 | I32 newlen; | |
12492 | ||
12493 | filter_add(utf16rev_textfilter, NULL); | |
a02a5408 | 12494 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd | 12495 | utf16_to_utf8_reversed(s, news, |
aed58286 | 12496 | PL_bufend - (char*)s - 1, |
1de9afcd | 12497 | &newlen); |
7aa207d6 | 12498 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
5db06880 NC |
12499 | #ifdef PERL_MAD |
12500 | s = (U8*)SvPVX(PL_linestr); | |
12501 | Copy(news, s, newlen, U8); | |
12502 | s[newlen] = '\0'; | |
12503 | #endif | |
dea0fc0b | 12504 | Safefree(news); |
7aa207d6 JH |
12505 | SvUTF8_on(PL_linestr); |
12506 | s = (U8*)SvPVX(PL_linestr); | |
5db06880 NC |
12507 | #ifdef PERL_MAD |
12508 | /* FIXME - is this a general bug fix? */ | |
12509 | s[newlen] = '\0'; | |
12510 | #endif | |
7aa207d6 | 12511 | PL_bufend = SvPVX(PL_linestr) + newlen; |
dea0fc0b | 12512 | } |
b250498f | 12513 | #else |
7aa207d6 | 12514 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-LE"); |
b250498f | 12515 | #endif |
01ec43d0 GS |
12516 | } |
12517 | break; | |
78ae23f5 | 12518 | case 0xFE: |
7aa207d6 | 12519 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 12520 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12521 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b | 12522 | s += 2; |
7aa207d6 | 12523 | utf16be: |
dea0fc0b JH |
12524 | if (PL_bufend > (char *)s) { |
12525 | U8 *news; | |
12526 | I32 newlen; | |
12527 | ||
12528 | filter_add(utf16_textfilter, NULL); | |
a02a5408 | 12529 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd RGS |
12530 | utf16_to_utf8(s, news, |
12531 | PL_bufend - (char*)s, | |
12532 | &newlen); | |
7aa207d6 | 12533 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
dea0fc0b | 12534 | Safefree(news); |
7aa207d6 JH |
12535 | SvUTF8_on(PL_linestr); |
12536 | s = (U8*)SvPVX(PL_linestr); | |
12537 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
dea0fc0b | 12538 | } |
b250498f | 12539 | #else |
7aa207d6 | 12540 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-BE"); |
b250498f | 12541 | #endif |
01ec43d0 GS |
12542 | } |
12543 | break; | |
3ae08724 GS |
12544 | case 0xEF: |
12545 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
7aa207d6 | 12546 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
12547 | s += 3; /* UTF-8 */ |
12548 | } | |
12549 | break; | |
12550 | case 0: | |
7aa207d6 JH |
12551 | if (slen > 3) { |
12552 | if (s[1] == 0) { | |
12553 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
12554 | /* UTF-32 big-endian */ | |
12555 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-BE"); | |
12556 | } | |
12557 | } | |
12558 | else if (s[2] == 0 && s[3] != 0) { | |
12559 | /* Leading bytes | |
12560 | * 00 xx 00 xx | |
12561 | * are a good indicator of UTF-16BE. */ | |
12562 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); | |
12563 | goto utf16be; | |
12564 | } | |
01ec43d0 | 12565 | } |
e294cc5d JH |
12566 | #ifdef EBCDIC |
12567 | case 0xDD: | |
12568 | if (slen > 3 && s[1] == 0x73 && s[2] == 0x66 && s[3] == 0x73) { | |
12569 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); | |
12570 | s += 4; /* UTF-8 */ | |
12571 | } | |
12572 | break; | |
12573 | #endif | |
12574 | ||
7aa207d6 JH |
12575 | default: |
12576 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
12577 | /* Leading bytes | |
12578 | * xx 00 xx 00 | |
12579 | * are a good indicator of UTF-16LE. */ | |
12580 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); | |
12581 | goto utf16le; | |
12582 | } | |
01ec43d0 | 12583 | } |
b8f84bb2 | 12584 | return (char*)s; |
b250498f | 12585 | } |
4755096e | 12586 | |
4755096e GS |
12587 | /* |
12588 | * restore_rsfp | |
12589 | * Restore a source filter. | |
12590 | */ | |
12591 | ||
12592 | static void | |
acfe0abc | 12593 | restore_rsfp(pTHX_ void *f) |
4755096e | 12594 | { |
97aff369 | 12595 | dVAR; |
0bd48802 | 12596 | PerlIO * const fp = (PerlIO*)f; |
4755096e GS |
12597 | |
12598 | if (PL_rsfp == PerlIO_stdin()) | |
12599 | PerlIO_clearerr(PL_rsfp); | |
12600 | else if (PL_rsfp && (PL_rsfp != fp)) | |
12601 | PerlIO_close(PL_rsfp); | |
12602 | PL_rsfp = fp; | |
12603 | } | |
6e3aabd6 GS |
12604 | |
12605 | #ifndef PERL_NO_UTF16_FILTER | |
12606 | static I32 | |
acfe0abc | 12607 | utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12608 | { |
97aff369 | 12609 | dVAR; |
f54cb97a AL |
12610 | const STRLEN old = SvCUR(sv); |
12611 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12612 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12613 | "utf16_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12614 | FPTR2DPTR(void *, utf16_textfilter), |
12615 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12616 | if (count) { |
12617 | U8* tmps; | |
dea0fc0b | 12618 | I32 newlen; |
a02a5408 | 12619 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12620 | Copy(SvPVX_const(sv), tmps, old, char); |
12621 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12622 | SvCUR(sv) - old, &newlen); |
12623 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12624 | } |
1de9afcd RGS |
12625 | DEBUG_P({sv_dump(sv);}); |
12626 | return SvCUR(sv); | |
6e3aabd6 GS |
12627 | } |
12628 | ||
12629 | static I32 | |
acfe0abc | 12630 | utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12631 | { |
97aff369 | 12632 | dVAR; |
f54cb97a AL |
12633 | const STRLEN old = SvCUR(sv); |
12634 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12635 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12636 | "utf16rev_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12637 | FPTR2DPTR(void *, utf16rev_textfilter), |
12638 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12639 | if (count) { |
12640 | U8* tmps; | |
dea0fc0b | 12641 | I32 newlen; |
a02a5408 | 12642 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12643 | Copy(SvPVX_const(sv), tmps, old, char); |
12644 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12645 | SvCUR(sv) - old, &newlen); |
12646 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12647 | } |
1de9afcd | 12648 | DEBUG_P({ sv_dump(sv); }); |
6e3aabd6 GS |
12649 | return count; |
12650 | } | |
12651 | #endif | |
9f4817db | 12652 | |
f333445c JP |
12653 | /* |
12654 | Returns a pointer to the next character after the parsed | |
12655 | vstring, as well as updating the passed in sv. | |
12656 | ||
12657 | Function must be called like | |
12658 | ||
561b68a9 | 12659 | sv = newSV(5); |
f333445c JP |
12660 | s = scan_vstring(s,sv); |
12661 | ||
12662 | The sv should already be large enough to store the vstring | |
12663 | passed in, for performance reasons. | |
12664 | ||
12665 | */ | |
12666 | ||
12667 | char * | |
bfed75c6 | 12668 | Perl_scan_vstring(pTHX_ const char *s, SV *sv) |
f333445c | 12669 | { |
97aff369 | 12670 | dVAR; |
bfed75c6 AL |
12671 | const char *pos = s; |
12672 | const char *start = s; | |
f333445c | 12673 | if (*pos == 'v') pos++; /* get past 'v' */ |
3e884cbf JH |
12674 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
12675 | pos++; | |
f333445c JP |
12676 | if ( *pos != '.') { |
12677 | /* this may not be a v-string if followed by => */ | |
bfed75c6 | 12678 | const char *next = pos; |
8fc7bb1c SM |
12679 | while (next < PL_bufend && isSPACE(*next)) |
12680 | ++next; | |
12681 | if ((PL_bufend - next) >= 2 && *next == '=' && next[1] == '>' ) { | |
f333445c JP |
12682 | /* return string not v-string */ |
12683 | sv_setpvn(sv,(char *)s,pos-s); | |
73d840c0 | 12684 | return (char *)pos; |
f333445c JP |
12685 | } |
12686 | } | |
12687 | ||
12688 | if (!isALPHA(*pos)) { | |
89ebb4a3 | 12689 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
f333445c | 12690 | |
d4c19fe8 AL |
12691 | if (*s == 'v') |
12692 | s++; /* get past 'v' */ | |
f333445c JP |
12693 | |
12694 | sv_setpvn(sv, "", 0); | |
12695 | ||
12696 | for (;;) { | |
d4c19fe8 | 12697 | /* this is atoi() that tolerates underscores */ |
0bd48802 AL |
12698 | U8 *tmpend; |
12699 | UV rev = 0; | |
d4c19fe8 AL |
12700 | const char *end = pos; |
12701 | UV mult = 1; | |
12702 | while (--end >= s) { | |
12703 | if (*end != '_') { | |
12704 | const UV orev = rev; | |
f333445c JP |
12705 | rev += (*end - '0') * mult; |
12706 | mult *= 10; | |
12707 | if (orev > rev && ckWARN_d(WARN_OVERFLOW)) | |
12708 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), | |
12709 | "Integer overflow in decimal number"); | |
12710 | } | |
12711 | } | |
12712 | #ifdef EBCDIC | |
12713 | if (rev > 0x7FFFFFFF) | |
12714 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
12715 | #endif | |
12716 | /* Append native character for the rev point */ | |
12717 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
12718 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
12719 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
12720 | SvUTF8_on(sv); | |
3e884cbf | 12721 | if (pos + 1 < PL_bufend && *pos == '.' && isDIGIT(pos[1])) |
f333445c JP |
12722 | s = ++pos; |
12723 | else { | |
12724 | s = pos; | |
12725 | break; | |
12726 | } | |
3e884cbf | 12727 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
f333445c JP |
12728 | pos++; |
12729 | } | |
12730 | SvPOK_on(sv); | |
12731 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
12732 | SvRMAGICAL_on(sv); | |
12733 | } | |
73d840c0 | 12734 | return (char *)s; |
f333445c JP |
12735 | } |
12736 | ||
1da4ca5f NC |
12737 | /* |
12738 | * Local variables: | |
12739 | * c-indentation-style: bsd | |
12740 | * c-basic-offset: 4 | |
12741 | * indent-tabs-mode: t | |
12742 | * End: | |
12743 | * | |
37442d52 RGS |
12744 | * ex: set ts=8 sts=4 sw=4 noet: |
12745 | */ |