Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* toke.c |
a687059c | 2 | * |
e6906430 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
29652248 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 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 | |
d3b6f988 GS |
26 | #define yychar PL_yychar |
27 | #define yylval PL_yylval | |
28 | ||
a00f3e00 AL |
29 | static char const ident_too_long[] = "Identifier too long"; |
30 | static char const c_without_g[] = "Use of /c modifier is meaningless without /g"; | |
31 | static char const c_in_subst[] = "Use of /c modifier is meaningless in s///"; | |
8903cb82 | 32 | |
acfe0abc | 33 | static void restore_rsfp(pTHX_ void *f); |
6e3aabd6 | 34 | #ifndef PERL_NO_UTF16_FILTER |
acfe0abc GS |
35 | static I32 utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen); |
36 | static I32 utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen); | |
6e3aabd6 | 37 | #endif |
51371543 | 38 | |
9059aa12 LW |
39 | #define XFAKEBRACK 128 |
40 | #define XENUMMASK 127 | |
41 | ||
39e02b42 JH |
42 | #ifdef USE_UTF8_SCRIPTS |
43 | # define UTF (!IN_BYTES) | |
2b9d42f0 | 44 | #else |
746b446a | 45 | # define UTF ((PL_linestr && DO_UTF8(PL_linestr)) || (PL_hints & HINT_UTF8)) |
2b9d42f0 | 46 | #endif |
a0ed51b3 | 47 | |
61f0cdd9 | 48 | /* In variables named $^X, these are the legal values for X. |
2b92dfce GS |
49 | * 1999-02-27 mjd-perl-patch@plover.com */ |
50 | #define isCONTROLVAR(x) (isUPPER(x) || strchr("[\\]^_?", (x))) | |
51 | ||
bf4acbe4 GS |
52 | /* On MacOS, respect nonbreaking spaces */ |
53 | #ifdef MACOS_TRADITIONAL | |
54 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\312'||(c)=='\t') | |
55 | #else | |
56 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\t') | |
57 | #endif | |
58 | ||
ffb4593c NT |
59 | /* LEX_* are values for PL_lex_state, the state of the lexer. |
60 | * They are arranged oddly so that the guard on the switch statement | |
79072805 LW |
61 | * can get by with a single comparison (if the compiler is smart enough). |
62 | */ | |
63 | ||
fb73857a | 64 | /* #define LEX_NOTPARSING 11 is done in perl.h. */ |
65 | ||
55497cff | 66 | #define LEX_NORMAL 10 |
67 | #define LEX_INTERPNORMAL 9 | |
68 | #define LEX_INTERPCASEMOD 8 | |
69 | #define LEX_INTERPPUSH 7 | |
70 | #define LEX_INTERPSTART 6 | |
71 | #define LEX_INTERPEND 5 | |
72 | #define LEX_INTERPENDMAYBE 4 | |
73 | #define LEX_INTERPCONCAT 3 | |
74 | #define LEX_INTERPCONST 2 | |
75 | #define LEX_FORMLINE 1 | |
76 | #define LEX_KNOWNEXT 0 | |
79072805 | 77 | |
f31bfe61 | 78 | #ifdef DEBUGGING |
a00f3e00 | 79 | static char const* lex_state_names[] = { |
f31bfe61 NC |
80 | "KNOWNEXT", |
81 | "FORMLINE", | |
82 | "INTERPCONST", | |
83 | "INTERPCONCAT", | |
84 | "INTERPENDMAYBE", | |
85 | "INTERPEND", | |
86 | "INTERPSTART", | |
87 | "INTERPPUSH", | |
88 | "INTERPCASEMOD", | |
89 | "INTERPNORMAL", | |
90 | "NORMAL" | |
91 | }; | |
92 | #endif | |
93 | ||
79072805 LW |
94 | #ifdef ff_next |
95 | #undef ff_next | |
d48672a2 LW |
96 | #endif |
97 | ||
a1a0e61e | 98 | #ifdef USE_PURE_BISON |
dba4d153 JH |
99 | # ifndef YYMAXLEVEL |
100 | # define YYMAXLEVEL 100 | |
101 | # endif | |
20141f0e IRC |
102 | YYSTYPE* yylval_pointer[YYMAXLEVEL]; |
103 | int* yychar_pointer[YYMAXLEVEL]; | |
6f202aea | 104 | int yyactlevel = -1; |
22c35a8c GS |
105 | # undef yylval |
106 | # undef yychar | |
20141f0e IRC |
107 | # define yylval (*yylval_pointer[yyactlevel]) |
108 | # define yychar (*yychar_pointer[yyactlevel]) | |
109 | # define PERL_YYLEX_PARAM yylval_pointer[yyactlevel],yychar_pointer[yyactlevel] | |
4e553d73 | 110 | # undef yylex |
dba4d153 | 111 | # define yylex() Perl_yylex_r(aTHX_ yylval_pointer[yyactlevel],yychar_pointer[yyactlevel]) |
a1a0e61e TD |
112 | #endif |
113 | ||
79072805 | 114 | #include "keywords.h" |
fe14fcc3 | 115 | |
ffb4593c NT |
116 | /* CLINE is a macro that ensures PL_copline has a sane value */ |
117 | ||
ae986130 LW |
118 | #ifdef CLINE |
119 | #undef CLINE | |
120 | #endif | |
57843af0 | 121 | #define CLINE (PL_copline = (CopLINE(PL_curcop) < PL_copline ? CopLINE(PL_curcop) : PL_copline)) |
3280af22 | 122 | |
cf011bf2 NC |
123 | /* According to some strict interpretations of ANSI C89 one cannot |
124 | * cast void pointers to code pointers or vice versa (as filter_add(), | |
125 | * filter_del(), and filter_read() will want to do). We should still | |
126 | * be able to use a union for sneaky "casting". */ | |
127 | typedef union { | |
128 | XPVIO* iop; | |
129 | filter_t filter; | |
130 | } xpvio_filter_u; | |
131 | ||
ffb4593c NT |
132 | /* |
133 | * Convenience functions to return different tokens and prime the | |
9cbb5ea2 | 134 | * lexer for the next token. They all take an argument. |
ffb4593c NT |
135 | * |
136 | * TOKEN : generic token (used for '(', DOLSHARP, etc) | |
137 | * OPERATOR : generic operator | |
138 | * AOPERATOR : assignment operator | |
139 | * PREBLOCK : beginning the block after an if, while, foreach, ... | |
140 | * PRETERMBLOCK : beginning a non-code-defining {} block (eg, hash ref) | |
141 | * PREREF : *EXPR where EXPR is not a simple identifier | |
142 | * TERM : expression term | |
143 | * LOOPX : loop exiting command (goto, last, dump, etc) | |
144 | * FTST : file test operator | |
145 | * FUN0 : zero-argument function | |
2d2e263d | 146 | * FUN1 : not used, except for not, which isn't a UNIOP |
ffb4593c NT |
147 | * BOop : bitwise or or xor |
148 | * BAop : bitwise and | |
149 | * SHop : shift operator | |
150 | * PWop : power operator | |
9cbb5ea2 | 151 | * PMop : pattern-matching operator |
ffb4593c NT |
152 | * Aop : addition-level operator |
153 | * Mop : multiplication-level operator | |
154 | * Eop : equality-testing operator | |
e5edeb50 | 155 | * Rop : relational operator <= != gt |
ffb4593c NT |
156 | * |
157 | * Also see LOP and lop() below. | |
158 | */ | |
159 | ||
998054bd | 160 | #ifdef DEBUGGING /* Serve -DT. */ |
f31bfe61 | 161 | # define REPORT(retval) tokereport(s,(int)retval) |
998054bd | 162 | #else |
f31bfe61 | 163 | # define REPORT(retval) (retval) |
998054bd SC |
164 | #endif |
165 | ||
f31bfe61 NC |
166 | #define TOKEN(retval) return ( PL_bufptr = s, REPORT(retval)) |
167 | #define OPERATOR(retval) return (PL_expect = XTERM, PL_bufptr = s, REPORT(retval)) | |
168 | #define AOPERATOR(retval) return ao((PL_expect = XTERM, PL_bufptr = s, REPORT(retval))) | |
169 | #define PREBLOCK(retval) return (PL_expect = XBLOCK,PL_bufptr = s, REPORT(retval)) | |
170 | #define PRETERMBLOCK(retval) return (PL_expect = XTERMBLOCK,PL_bufptr = s, REPORT(retval)) | |
171 | #define PREREF(retval) return (PL_expect = XREF,PL_bufptr = s, REPORT(retval)) | |
172 | #define TERM(retval) return (CLINE, PL_expect = XOPERATOR, PL_bufptr = s, REPORT(retval)) | |
173 | #define LOOPX(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)LOOPEX)) | |
174 | #define FTST(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)UNIOP)) | |
175 | #define FUN0(f) return (yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC0)) | |
176 | #define FUN1(f) return (yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC1)) | |
177 | #define BOop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITOROP))) | |
178 | #define BAop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITANDOP))) | |
179 | #define SHop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)SHIFTOP))) | |
180 | #define PWop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)POWOP))) | |
181 | #define PMop(f) return(yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MATCHOP)) | |
182 | #define Aop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)ADDOP))) | |
183 | #define Mop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MULOP))) | |
184 | #define Eop(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)EQOP)) | |
185 | #define Rop(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)RELOP)) | |
2f3197b3 | 186 | |
a687059c LW |
187 | /* This bit of chicanery makes a unary function followed by |
188 | * a parenthesis into a function with one argument, highest precedence. | |
189 | */ | |
2f3197b3 | 190 | #define UNI(f) return(yylval.ival = f, \ |
3280af22 NIS |
191 | PL_expect = XTERM, \ |
192 | PL_bufptr = s, \ | |
193 | PL_last_uni = PL_oldbufptr, \ | |
194 | PL_last_lop_op = f, \ | |
f31bfe61 NC |
195 | REPORT( \ |
196 | (*s == '(' || (s = skipspace(s), *s == '(') \ | |
197 | ? (int)FUNC1 : (int)UNIOP))) | |
a687059c | 198 | |
f31bfe61 NC |
199 | #define UNIBRACK(f) return ( \ |
200 | yylval.ival = f, \ | |
3280af22 NIS |
201 | PL_bufptr = s, \ |
202 | PL_last_uni = PL_oldbufptr, \ | |
f31bfe61 NC |
203 | REPORT( \ |
204 | (*s == '(' || (s = skipspace(s), *s == '(') \ | |
205 | ? (int)FUNC1 : (int)UNIOP))) | |
79072805 | 206 | |
9f68db38 | 207 | /* grandfather return to old style */ |
3280af22 | 208 | #define OLDLOP(f) return(yylval.ival=f,PL_expect = XTERM,PL_bufptr = s,(int)LSTOP) |
79072805 | 209 | |
8fa7f367 JH |
210 | #ifdef DEBUGGING |
211 | ||
f31bfe61 NC |
212 | /* how to interpret the yylval associated with the token */ |
213 | enum token_type { | |
214 | TOKENTYPE_NONE, | |
215 | TOKENTYPE_IVAL, | |
216 | TOKENTYPE_OPNUM, /* yylval.ival contains an opcode number */ | |
217 | TOKENTYPE_PVAL, | |
218 | TOKENTYPE_OPVAL, | |
219 | TOKENTYPE_GVVAL | |
220 | }; | |
221 | ||
a00f3e00 | 222 | static struct debug_tokens { const int token, type; const char *name; } debug_tokens[] = |
9041c2e3 | 223 | { |
f31bfe61 NC |
224 | { ADDOP, TOKENTYPE_OPNUM, "ADDOP" }, |
225 | { ANDAND, TOKENTYPE_NONE, "ANDAND" }, | |
226 | { ANDOP, TOKENTYPE_NONE, "ANDOP" }, | |
227 | { ANONSUB, TOKENTYPE_IVAL, "ANONSUB" }, | |
228 | { ARROW, TOKENTYPE_NONE, "ARROW" }, | |
229 | { ASSIGNOP, TOKENTYPE_OPNUM, "ASSIGNOP" }, | |
230 | { BITANDOP, TOKENTYPE_OPNUM, "BITANDOP" }, | |
231 | { BITOROP, TOKENTYPE_OPNUM, "BITOROP" }, | |
232 | { COLONATTR, TOKENTYPE_NONE, "COLONATTR" }, | |
233 | { CONTINUE, TOKENTYPE_NONE, "CONTINUE" }, | |
234 | { DO, TOKENTYPE_NONE, "DO" }, | |
235 | { DOLSHARP, TOKENTYPE_NONE, "DOLSHARP" }, | |
236 | { DOTDOT, TOKENTYPE_IVAL, "DOTDOT" }, | |
237 | { ELSE, TOKENTYPE_NONE, "ELSE" }, | |
238 | { ELSIF, TOKENTYPE_IVAL, "ELSIF" }, | |
239 | { EQOP, TOKENTYPE_OPNUM, "EQOP" }, | |
240 | { FOR, TOKENTYPE_IVAL, "FOR" }, | |
241 | { FORMAT, TOKENTYPE_NONE, "FORMAT" }, | |
242 | { FUNC, TOKENTYPE_OPNUM, "FUNC" }, | |
243 | { FUNC0, TOKENTYPE_OPNUM, "FUNC0" }, | |
244 | { FUNC0SUB, TOKENTYPE_OPVAL, "FUNC0SUB" }, | |
245 | { FUNC1, TOKENTYPE_OPNUM, "FUNC1" }, | |
246 | { FUNCMETH, TOKENTYPE_OPVAL, "FUNCMETH" }, | |
247 | { HASHBRACK, TOKENTYPE_NONE, "HASHBRACK" }, | |
248 | { IF, TOKENTYPE_IVAL, "IF" }, | |
249 | { LABEL, TOKENTYPE_PVAL, "LABEL" }, | |
250 | { LOCAL, TOKENTYPE_IVAL, "LOCAL" }, | |
251 | { LOOPEX, TOKENTYPE_OPNUM, "LOOPEX" }, | |
252 | { LSTOP, TOKENTYPE_OPNUM, "LSTOP" }, | |
253 | { LSTOPSUB, TOKENTYPE_OPVAL, "LSTOPSUB" }, | |
254 | { MATCHOP, TOKENTYPE_OPNUM, "MATCHOP" }, | |
255 | { METHOD, TOKENTYPE_OPVAL, "METHOD" }, | |
256 | { MULOP, TOKENTYPE_OPNUM, "MULOP" }, | |
257 | { MY, TOKENTYPE_IVAL, "MY" }, | |
258 | { MYSUB, TOKENTYPE_NONE, "MYSUB" }, | |
259 | { NOAMP, TOKENTYPE_NONE, "NOAMP" }, | |
260 | { NOTOP, TOKENTYPE_NONE, "NOTOP" }, | |
261 | { OROP, TOKENTYPE_IVAL, "OROP" }, | |
262 | { OROR, TOKENTYPE_NONE, "OROR" }, | |
263 | { PACKAGE, TOKENTYPE_NONE, "PACKAGE" }, | |
264 | { PMFUNC, TOKENTYPE_OPVAL, "PMFUNC" }, | |
265 | { POSTDEC, TOKENTYPE_NONE, "POSTDEC" }, | |
266 | { POSTINC, TOKENTYPE_NONE, "POSTINC" }, | |
267 | { POWOP, TOKENTYPE_OPNUM, "POWOP" }, | |
268 | { PREDEC, TOKENTYPE_NONE, "PREDEC" }, | |
269 | { PREINC, TOKENTYPE_NONE, "PREINC" }, | |
270 | { PRIVATEREF, TOKENTYPE_OPVAL, "PRIVATEREF" }, | |
271 | { REFGEN, TOKENTYPE_NONE, "REFGEN" }, | |
272 | { RELOP, TOKENTYPE_OPNUM, "RELOP" }, | |
273 | { SHIFTOP, TOKENTYPE_OPNUM, "SHIFTOP" }, | |
274 | { SUB, TOKENTYPE_NONE, "SUB" }, | |
275 | { THING, TOKENTYPE_OPVAL, "THING" }, | |
276 | { UMINUS, TOKENTYPE_NONE, "UMINUS" }, | |
277 | { UNIOP, TOKENTYPE_OPNUM, "UNIOP" }, | |
278 | { UNIOPSUB, TOKENTYPE_OPVAL, "UNIOPSUB" }, | |
279 | { UNLESS, TOKENTYPE_IVAL, "UNLESS" }, | |
280 | { UNTIL, TOKENTYPE_IVAL, "UNTIL" }, | |
281 | { USE, TOKENTYPE_IVAL, "USE" }, | |
282 | { WHILE, TOKENTYPE_IVAL, "WHILE" }, | |
283 | { WORD, TOKENTYPE_OPVAL, "WORD" }, | |
284 | { 0, TOKENTYPE_NONE, 0 } | |
285 | }; | |
286 | ||
287 | /* dump the returned token in rv, plus any optional arg in yylval */ | |
998054bd | 288 | |
f31bfe61 | 289 | STATIC int |
a00f3e00 | 290 | S_tokereport(pTHX_ const char* s, I32 rv) |
f31bfe61 NC |
291 | { |
292 | if (DEBUG_T_TEST) { | |
a00f3e00 | 293 | const char *name = Nullch; |
f31bfe61 | 294 | enum token_type type = TOKENTYPE_NONE; |
24c2fff4 | 295 | const struct debug_tokens *p; |
a00f3e00 | 296 | SV* report = newSVpvn("<== ", 4); |
f31bfe61 NC |
297 | |
298 | for (p = debug_tokens; p->token; p++) { | |
299 | if (p->token == (int)rv) { | |
300 | name = p->name; | |
301 | type = p->type; | |
302 | break; | |
303 | } | |
304 | } | |
305 | if (name) | |
306 | Perl_sv_catpvf(aTHX_ report, "%s", name); | |
307 | else if ((char)rv > ' ' && (char)rv < '~') | |
308 | Perl_sv_catpvf(aTHX_ report, "'%c'", (char)rv); | |
309 | else if (!rv) | |
310 | Perl_sv_catpvf(aTHX_ report, "EOF"); | |
311 | else | |
312 | Perl_sv_catpvf(aTHX_ report, "?? %"IVdf, (IV)rv); | |
313 | switch (type) { | |
314 | case TOKENTYPE_NONE: | |
315 | case TOKENTYPE_GVVAL: /* doesn't appear to be used */ | |
316 | break; | |
317 | case TOKENTYPE_IVAL: | |
318 | Perl_sv_catpvf(aTHX_ report, "(ival=%"IVdf")", yylval.ival); | |
319 | break; | |
320 | case TOKENTYPE_OPNUM: | |
321 | Perl_sv_catpvf(aTHX_ report, "(ival=op_%s)", | |
322 | PL_op_name[yylval.ival]); | |
323 | break; | |
324 | case TOKENTYPE_PVAL: | |
325 | Perl_sv_catpvf(aTHX_ report, "(pval=\"%s\")", yylval.pval); | |
326 | break; | |
327 | case TOKENTYPE_OPVAL: | |
c870331e NC |
328 | if (yylval.opval) |
329 | Perl_sv_catpvf(aTHX_ report, "(opval=op_%s)", | |
f31bfe61 | 330 | PL_op_name[yylval.opval->op_type]); |
c870331e NC |
331 | else |
332 | Perl_sv_catpv(aTHX_ report, "(opval=null)"); | |
f31bfe61 NC |
333 | break; |
334 | } | |
335 | Perl_sv_catpvf(aTHX_ report, " at line %d [", CopLINE(PL_curcop)); | |
998054bd SC |
336 | if (s - PL_bufptr > 0) |
337 | sv_catpvn(report, PL_bufptr, s - PL_bufptr); | |
338 | else { | |
339 | if (PL_oldbufptr && *PL_oldbufptr) | |
340 | sv_catpv(report, PL_tokenbuf); | |
341 | } | |
f31bfe61 NC |
342 | PerlIO_printf(Perl_debug_log, "### %s]\n", SvPV_nolen(report)); |
343 | }; | |
344 | return (int)rv; | |
998054bd SC |
345 | } |
346 | ||
8fa7f367 JH |
347 | #endif |
348 | ||
ffb4593c NT |
349 | /* |
350 | * S_ao | |
351 | * | |
352 | * This subroutine detects &&= and ||= and turns an ANDAND or OROR | |
353 | * into an OP_ANDASSIGN or OP_ORASSIGN | |
354 | */ | |
355 | ||
76e3520e | 356 | STATIC int |
cea2e8a9 | 357 | S_ao(pTHX_ int toketype) |
a0d0e21e | 358 | { |
3280af22 NIS |
359 | if (*PL_bufptr == '=') { |
360 | PL_bufptr++; | |
a0d0e21e LW |
361 | if (toketype == ANDAND) |
362 | yylval.ival = OP_ANDASSIGN; | |
363 | else if (toketype == OROR) | |
364 | yylval.ival = OP_ORASSIGN; | |
365 | toketype = ASSIGNOP; | |
366 | } | |
367 | return toketype; | |
368 | } | |
369 | ||
ffb4593c NT |
370 | /* |
371 | * S_no_op | |
372 | * When Perl expects an operator and finds something else, no_op | |
373 | * prints the warning. It always prints "<something> found where | |
374 | * operator expected. It prints "Missing semicolon on previous line?" | |
375 | * if the surprise occurs at the start of the line. "do you need to | |
376 | * predeclare ..." is printed out for code like "sub bar; foo bar $x" | |
377 | * where the compiler doesn't know if foo is a method call or a function. | |
378 | * It prints "Missing operator before end of line" if there's nothing | |
379 | * after the missing operator, or "... before <...>" if there is something | |
380 | * after the missing operator. | |
381 | */ | |
382 | ||
76e3520e | 383 | STATIC void |
a00f3e00 | 384 | S_no_op(pTHX_ const char *what, char *s) |
463ee0b2 | 385 | { |
3280af22 NIS |
386 | char *oldbp = PL_bufptr; |
387 | bool is_first = (PL_oldbufptr == PL_linestart); | |
68dc0745 | 388 | |
1189a94a GS |
389 | if (!s) |
390 | s = oldbp; | |
07c798fb | 391 | else |
1189a94a | 392 | PL_bufptr = s; |
cea2e8a9 | 393 | yywarn(Perl_form(aTHX_ "%s found where operator expected", what)); |
c77beb56 NC |
394 | if (ckWARN_d(WARN_SYNTAX)) { |
395 | if (is_first) | |
396 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
397 | "\t(Missing semicolon on previous line?)\n"); | |
398 | else if (PL_oldoldbufptr && isIDFIRST_lazy_if(PL_oldoldbufptr,UTF)) { | |
24c2fff4 | 399 | const char *t; |
c77beb56 NC |
400 | for (t = PL_oldoldbufptr; *t && (isALNUM_lazy_if(t,UTF) || *t == ':'); t++) ; |
401 | if (t < PL_bufptr && isSPACE(*t)) | |
402 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
403 | "\t(Do you need to predeclare %.*s?)\n", | |
404 | t - PL_oldoldbufptr, PL_oldoldbufptr); | |
405 | } | |
406 | else { | |
407 | assert(s >= oldbp); | |
408 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
409 | "\t(Missing operator before %.*s?)\n", s - oldbp, oldbp); | |
410 | } | |
07c798fb | 411 | } |
3280af22 | 412 | PL_bufptr = oldbp; |
8990e307 LW |
413 | } |
414 | ||
ffb4593c NT |
415 | /* |
416 | * S_missingterm | |
417 | * Complain about missing quote/regexp/heredoc terminator. | |
418 | * If it's called with (char *)NULL then it cauterizes the line buffer. | |
419 | * If we're in a delimited string and the delimiter is a control | |
420 | * character, it's reformatted into a two-char sequence like ^C. | |
421 | * This is fatal. | |
422 | */ | |
423 | ||
76e3520e | 424 | STATIC void |
cea2e8a9 | 425 | S_missingterm(pTHX_ char *s) |
8990e307 LW |
426 | { |
427 | char tmpbuf[3]; | |
428 | char q; | |
429 | if (s) { | |
430 | char *nl = strrchr(s,'\n'); | |
d2719217 | 431 | if (nl) |
8990e307 LW |
432 | *nl = '\0'; |
433 | } | |
9d116dd7 JH |
434 | else if ( |
435 | #ifdef EBCDIC | |
436 | iscntrl(PL_multi_close) | |
437 | #else | |
438 | PL_multi_close < 32 || PL_multi_close == 127 | |
439 | #endif | |
440 | ) { | |
8990e307 | 441 | *tmpbuf = '^'; |
3280af22 | 442 | tmpbuf[1] = toCTRL(PL_multi_close); |
8990e307 LW |
443 | tmpbuf[2] = '\0'; |
444 | s = tmpbuf; | |
445 | } | |
446 | else { | |
eb160463 | 447 | *tmpbuf = (char)PL_multi_close; |
8990e307 LW |
448 | tmpbuf[1] = '\0'; |
449 | s = tmpbuf; | |
450 | } | |
451 | q = strchr(s,'"') ? '\'' : '"'; | |
cea2e8a9 | 452 | Perl_croak(aTHX_ "Can't find string terminator %c%s%c anywhere before EOF",q,s,q); |
463ee0b2 | 453 | } |
79072805 | 454 | |
ffb4593c NT |
455 | /* |
456 | * Perl_deprecate | |
ffb4593c NT |
457 | */ |
458 | ||
79072805 | 459 | void |
864dbfa3 | 460 | Perl_deprecate(pTHX_ char *s) |
a0d0e21e | 461 | { |
599cee73 | 462 | if (ckWARN(WARN_DEPRECATED)) |
9014280d | 463 | Perl_warner(aTHX_ packWARN(WARN_DEPRECATED), "Use of %s is deprecated", s); |
a0d0e21e LW |
464 | } |
465 | ||
12bcd1a6 PM |
466 | void |
467 | Perl_deprecate_old(pTHX_ char *s) | |
468 | { | |
469 | /* This function should NOT be called for any new deprecated warnings */ | |
470 | /* Use Perl_deprecate instead */ | |
471 | /* */ | |
472 | /* It is here to maintain backward compatibility with the pre-5.8 */ | |
473 | /* warnings category hierarchy. The "deprecated" category used to */ | |
474 | /* live under the "syntax" category. It is now a top-level category */ | |
475 | /* in its own right. */ | |
476 | ||
477 | if (ckWARN2(WARN_DEPRECATED, WARN_SYNTAX)) | |
a00f3e00 | 478 | Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX), |
12bcd1a6 PM |
479 | "Use of %s is deprecated", s); |
480 | } | |
481 | ||
ffb4593c NT |
482 | /* |
483 | * depcom | |
9cbb5ea2 | 484 | * Deprecate a comma-less variable list. |
ffb4593c NT |
485 | */ |
486 | ||
76e3520e | 487 | STATIC void |
cea2e8a9 | 488 | S_depcom(pTHX) |
a0d0e21e | 489 | { |
12bcd1a6 | 490 | deprecate_old("comma-less variable list"); |
a0d0e21e LW |
491 | } |
492 | ||
ffb4593c | 493 | /* |
9cbb5ea2 GS |
494 | * experimental text filters for win32 carriage-returns, utf16-to-utf8 and |
495 | * utf16-to-utf8-reversed. | |
ffb4593c NT |
496 | */ |
497 | ||
c39cd008 GS |
498 | #ifdef PERL_CR_FILTER |
499 | static void | |
500 | strip_return(SV *sv) | |
501 | { | |
5e7e76a3 | 502 | register const char *s = SvPVX_const(sv); |
24c2fff4 | 503 | register const char *e = s + SvCUR(sv); |
c39cd008 GS |
504 | /* outer loop optimized to do nothing if there are no CR-LFs */ |
505 | while (s < e) { | |
506 | if (*s++ == '\r' && *s == '\n') { | |
507 | /* hit a CR-LF, need to copy the rest */ | |
508 | register char *d = s - 1; | |
509 | *d++ = *s++; | |
510 | while (s < e) { | |
511 | if (*s == '\r' && s[1] == '\n') | |
512 | s++; | |
513 | *d++ = *s++; | |
514 | } | |
515 | SvCUR(sv) -= s - d; | |
516 | return; | |
517 | } | |
518 | } | |
519 | } | |
a868473f | 520 | |
76e3520e | 521 | STATIC I32 |
c39cd008 | 522 | S_cr_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
a868473f | 523 | { |
24c2fff4 | 524 | const I32 count = FILTER_READ(idx+1, sv, maxlen); |
c39cd008 GS |
525 | if (count > 0 && !maxlen) |
526 | strip_return(sv); | |
527 | return count; | |
a868473f NIS |
528 | } |
529 | #endif | |
530 | ||
ffb4593c NT |
531 | /* |
532 | * Perl_lex_start | |
9cbb5ea2 GS |
533 | * Initialize variables. Uses the Perl save_stack to save its state (for |
534 | * recursive calls to the parser). | |
ffb4593c NT |
535 | */ |
536 | ||
a0d0e21e | 537 | void |
864dbfa3 | 538 | Perl_lex_start(pTHX_ SV *line) |
79072805 | 539 | { |
8990e307 LW |
540 | char *s; |
541 | STRLEN len; | |
542 | ||
3280af22 NIS |
543 | SAVEI32(PL_lex_dojoin); |
544 | SAVEI32(PL_lex_brackets); | |
3280af22 NIS |
545 | SAVEI32(PL_lex_casemods); |
546 | SAVEI32(PL_lex_starts); | |
547 | SAVEI32(PL_lex_state); | |
7766f137 | 548 | SAVEVPTR(PL_lex_inpat); |
3280af22 | 549 | SAVEI32(PL_lex_inwhat); |
18b09519 GS |
550 | if (PL_lex_state == LEX_KNOWNEXT) { |
551 | I32 toke = PL_nexttoke; | |
552 | while (--toke >= 0) { | |
553 | SAVEI32(PL_nexttype[toke]); | |
554 | SAVEVPTR(PL_nextval[toke]); | |
555 | } | |
556 | SAVEI32(PL_nexttoke); | |
18b09519 | 557 | } |
57843af0 | 558 | SAVECOPLINE(PL_curcop); |
3280af22 NIS |
559 | SAVEPPTR(PL_bufptr); |
560 | SAVEPPTR(PL_bufend); | |
561 | SAVEPPTR(PL_oldbufptr); | |
562 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
563 | SAVEPPTR(PL_last_lop); |
564 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
565 | SAVEPPTR(PL_linestart); |
566 | SAVESPTR(PL_linestr); | |
bda19f49 JH |
567 | SAVEGENERICPV(PL_lex_brackstack); |
568 | SAVEGENERICPV(PL_lex_casestack); | |
c76ac1ee | 569 | SAVEDESTRUCTOR_X(restore_rsfp, PL_rsfp); |
3280af22 NIS |
570 | SAVESPTR(PL_lex_stuff); |
571 | SAVEI32(PL_lex_defer); | |
09bef843 | 572 | SAVEI32(PL_sublex_info.sub_inwhat); |
3280af22 | 573 | SAVESPTR(PL_lex_repl); |
bebdddfc GS |
574 | SAVEINT(PL_expect); |
575 | SAVEINT(PL_lex_expect); | |
3280af22 NIS |
576 | |
577 | PL_lex_state = LEX_NORMAL; | |
578 | PL_lex_defer = 0; | |
579 | PL_expect = XSTATE; | |
580 | PL_lex_brackets = 0; | |
3280af22 NIS |
581 | New(899, PL_lex_brackstack, 120, char); |
582 | New(899, PL_lex_casestack, 12, char); | |
3280af22 NIS |
583 | PL_lex_casemods = 0; |
584 | *PL_lex_casestack = '\0'; | |
585 | PL_lex_dojoin = 0; | |
586 | PL_lex_starts = 0; | |
587 | PL_lex_stuff = Nullsv; | |
588 | PL_lex_repl = Nullsv; | |
589 | PL_lex_inpat = 0; | |
76be56bc | 590 | PL_nexttoke = 0; |
3280af22 | 591 | PL_lex_inwhat = 0; |
09bef843 | 592 | PL_sublex_info.sub_inwhat = 0; |
3280af22 NIS |
593 | PL_linestr = line; |
594 | if (SvREADONLY(PL_linestr)) | |
595 | PL_linestr = sv_2mortal(newSVsv(PL_linestr)); | |
596 | s = SvPV(PL_linestr, len); | |
6f27f9a7 | 597 | if (!len || s[len-1] != ';') { |
3280af22 NIS |
598 | if (!(SvFLAGS(PL_linestr) & SVs_TEMP)) |
599 | PL_linestr = sv_2mortal(newSVsv(PL_linestr)); | |
600 | sv_catpvn(PL_linestr, "\n;", 2); | |
8990e307 | 601 | } |
3280af22 NIS |
602 | SvTEMP_off(PL_linestr); |
603 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
604 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); | |
207e3d1a | 605 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 | 606 | PL_rsfp = 0; |
79072805 | 607 | } |
a687059c | 608 | |
ffb4593c NT |
609 | /* |
610 | * Perl_lex_end | |
9cbb5ea2 GS |
611 | * Finalizer for lexing operations. Must be called when the parser is |
612 | * done with the lexer. | |
ffb4593c NT |
613 | */ |
614 | ||
463ee0b2 | 615 | void |
864dbfa3 | 616 | Perl_lex_end(pTHX) |
463ee0b2 | 617 | { |
3280af22 | 618 | PL_doextract = FALSE; |
463ee0b2 LW |
619 | } |
620 | ||
ffb4593c NT |
621 | /* |
622 | * S_incline | |
623 | * This subroutine has nothing to do with tilting, whether at windmills | |
624 | * or pinball tables. Its name is short for "increment line". It | |
57843af0 | 625 | * increments the current line number in CopLINE(PL_curcop) and checks |
ffb4593c | 626 | * to see whether the line starts with a comment of the form |
9cbb5ea2 GS |
627 | * # line 500 "foo.pm" |
628 | * If so, it sets the current line number and file to the values in the comment. | |
ffb4593c NT |
629 | */ |
630 | ||
76e3520e | 631 | STATIC void |
cea2e8a9 | 632 | S_incline(pTHX_ char *s) |
463ee0b2 LW |
633 | { |
634 | char *t; | |
635 | char *n; | |
73659bf1 | 636 | char *e; |
463ee0b2 | 637 | char ch; |
463ee0b2 | 638 | |
57843af0 | 639 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
640 | if (*s++ != '#') |
641 | return; | |
bf4acbe4 | 642 | while (SPACE_OR_TAB(*s)) s++; |
73659bf1 GS |
643 | if (strnEQ(s, "line", 4)) |
644 | s += 4; | |
645 | else | |
646 | return; | |
084592ab | 647 | if (SPACE_OR_TAB(*s)) |
73659bf1 | 648 | s++; |
4e553d73 | 649 | else |
73659bf1 | 650 | return; |
bf4acbe4 | 651 | while (SPACE_OR_TAB(*s)) s++; |
463ee0b2 LW |
652 | if (!isDIGIT(*s)) |
653 | return; | |
654 | n = s; | |
655 | while (isDIGIT(*s)) | |
656 | s++; | |
bf4acbe4 | 657 | while (SPACE_OR_TAB(*s)) |
463ee0b2 | 658 | s++; |
73659bf1 | 659 | if (*s == '"' && (t = strchr(s+1, '"'))) { |
463ee0b2 | 660 | s++; |
73659bf1 GS |
661 | e = t + 1; |
662 | } | |
463ee0b2 | 663 | else { |
463ee0b2 | 664 | for (t = s; !isSPACE(*t); t++) ; |
73659bf1 | 665 | e = t; |
463ee0b2 | 666 | } |
bf4acbe4 | 667 | while (SPACE_OR_TAB(*e) || *e == '\r' || *e == '\f') |
73659bf1 GS |
668 | e++; |
669 | if (*e != '\n' && *e != '\0') | |
670 | return; /* false alarm */ | |
671 | ||
463ee0b2 LW |
672 | ch = *t; |
673 | *t = '\0'; | |
f4dd75d9 | 674 | if (t - s > 0) { |
05ec9bb3 | 675 | CopFILE_free(PL_curcop); |
57843af0 | 676 | CopFILE_set(PL_curcop, s); |
f4dd75d9 | 677 | } |
463ee0b2 | 678 | *t = ch; |
57843af0 | 679 | CopLINE_set(PL_curcop, atoi(n)-1); |
463ee0b2 LW |
680 | } |
681 | ||
ffb4593c NT |
682 | /* |
683 | * S_skipspace | |
684 | * Called to gobble the appropriate amount and type of whitespace. | |
685 | * Skips comments as well. | |
686 | */ | |
687 | ||
76e3520e | 688 | STATIC char * |
cea2e8a9 | 689 | S_skipspace(pTHX_ register char *s) |
a687059c | 690 | { |
3280af22 | 691 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
bf4acbe4 | 692 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
463ee0b2 LW |
693 | s++; |
694 | return s; | |
695 | } | |
696 | for (;;) { | |
fd049845 | 697 | STRLEN prevlen; |
09bef843 | 698 | SSize_t oldprevlen, oldoldprevlen; |
9c5ffd7c | 699 | SSize_t oldloplen = 0, oldunilen = 0; |
60e6418e GS |
700 | while (s < PL_bufend && isSPACE(*s)) { |
701 | if (*s++ == '\n' && PL_in_eval && !PL_rsfp) | |
702 | incline(s); | |
703 | } | |
ffb4593c NT |
704 | |
705 | /* comment */ | |
3280af22 NIS |
706 | if (s < PL_bufend && *s == '#') { |
707 | while (s < PL_bufend && *s != '\n') | |
463ee0b2 | 708 | s++; |
60e6418e | 709 | if (s < PL_bufend) { |
463ee0b2 | 710 | s++; |
60e6418e GS |
711 | if (PL_in_eval && !PL_rsfp) { |
712 | incline(s); | |
713 | continue; | |
714 | } | |
715 | } | |
463ee0b2 | 716 | } |
ffb4593c NT |
717 | |
718 | /* only continue to recharge the buffer if we're at the end | |
719 | * of the buffer, we're not reading from a source filter, and | |
720 | * we're in normal lexing mode | |
721 | */ | |
09bef843 SB |
722 | if (s < PL_bufend || !PL_rsfp || PL_sublex_info.sub_inwhat || |
723 | PL_lex_state == LEX_FORMLINE) | |
463ee0b2 | 724 | return s; |
ffb4593c NT |
725 | |
726 | /* try to recharge the buffer */ | |
9cbb5ea2 GS |
727 | if ((s = filter_gets(PL_linestr, PL_rsfp, |
728 | (prevlen = SvCUR(PL_linestr)))) == Nullch) | |
729 | { | |
730 | /* end of file. Add on the -p or -n magic */ | |
29652248 NC |
731 | if (PL_minus_p) { |
732 | sv_setpv(PL_linestr, | |
733 | ";}continue{print or die qq(-p destination: $!\\n);}"); | |
3280af22 | 734 | PL_minus_n = PL_minus_p = 0; |
a0d0e21e | 735 | } |
29652248 NC |
736 | else if (PL_minus_n) { |
737 | sv_setpvn(PL_linestr, ";}", 2); | |
738 | PL_minus_n = 0; | |
739 | } | |
a0d0e21e | 740 | else |
29652248 | 741 | sv_setpvn(PL_linestr,";", 1); |
ffb4593c NT |
742 | |
743 | /* reset variables for next time we lex */ | |
9cbb5ea2 GS |
744 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart |
745 | = SvPVX(PL_linestr); | |
3280af22 | 746 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
207e3d1a | 747 | PL_last_lop = PL_last_uni = Nullch; |
ffb4593c NT |
748 | |
749 | /* Close the filehandle. Could be from -P preprocessor, | |
750 | * STDIN, or a regular file. If we were reading code from | |
751 | * STDIN (because the commandline held no -e or filename) | |
752 | * then we don't close it, we reset it so the code can | |
753 | * read from STDIN too. | |
754 | */ | |
755 | ||
3280af22 NIS |
756 | if (PL_preprocess && !PL_in_eval) |
757 | (void)PerlProc_pclose(PL_rsfp); | |
758 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) | |
759 | PerlIO_clearerr(PL_rsfp); | |
8990e307 | 760 | else |
3280af22 NIS |
761 | (void)PerlIO_close(PL_rsfp); |
762 | PL_rsfp = Nullfp; | |
463ee0b2 LW |
763 | return s; |
764 | } | |
ffb4593c NT |
765 | |
766 | /* not at end of file, so we only read another line */ | |
09bef843 SB |
767 | /* make corresponding updates to old pointers, for yyerror() */ |
768 | oldprevlen = PL_oldbufptr - PL_bufend; | |
769 | oldoldprevlen = PL_oldoldbufptr - PL_bufend; | |
770 | if (PL_last_uni) | |
771 | oldunilen = PL_last_uni - PL_bufend; | |
772 | if (PL_last_lop) | |
773 | oldloplen = PL_last_lop - PL_bufend; | |
3280af22 NIS |
774 | PL_linestart = PL_bufptr = s + prevlen; |
775 | PL_bufend = s + SvCUR(PL_linestr); | |
776 | s = PL_bufptr; | |
09bef843 SB |
777 | PL_oldbufptr = s + oldprevlen; |
778 | PL_oldoldbufptr = s + oldoldprevlen; | |
779 | if (PL_last_uni) | |
780 | PL_last_uni = s + oldunilen; | |
781 | if (PL_last_lop) | |
782 | PL_last_lop = s + oldloplen; | |
a0d0e21e | 783 | incline(s); |
ffb4593c NT |
784 | |
785 | /* debugger active and we're not compiling the debugger code, | |
786 | * so store the line into the debugger's array of lines | |
787 | */ | |
3280af22 | 788 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
8990e307 LW |
789 | SV *sv = NEWSV(85,0); |
790 | ||
791 | sv_upgrade(sv, SVt_PVMG); | |
3280af22 | 792 | sv_setpvn(sv,PL_bufptr,PL_bufend-PL_bufptr); |
0ac0412a | 793 | (void)SvIOK_on(sv); |
0da6cfda | 794 | SvIV_set(sv, 0); |
57843af0 | 795 | av_store(CopFILEAV(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
8990e307 | 796 | } |
463ee0b2 | 797 | } |
a687059c | 798 | } |
378cc40b | 799 | |
ffb4593c NT |
800 | /* |
801 | * S_check_uni | |
802 | * Check the unary operators to ensure there's no ambiguity in how they're | |
803 | * used. An ambiguous piece of code would be: | |
804 | * rand + 5 | |
805 | * This doesn't mean rand() + 5. Because rand() is a unary operator, | |
806 | * the +5 is its argument. | |
807 | */ | |
808 | ||
76e3520e | 809 | STATIC void |
cea2e8a9 | 810 | S_check_uni(pTHX) |
ba106d47 | 811 | { |
2f3197b3 | 812 | char *s; |
a0d0e21e | 813 | char *t; |
2f3197b3 | 814 | |
3280af22 | 815 | if (PL_oldoldbufptr != PL_last_uni) |
2f3197b3 | 816 | return; |
3280af22 NIS |
817 | while (isSPACE(*PL_last_uni)) |
818 | PL_last_uni++; | |
7e2040f0 | 819 | for (s = PL_last_uni; isALNUM_lazy_if(s,UTF) || *s == '-'; s++) ; |
3280af22 | 820 | if ((t = strchr(s, '(')) && t < PL_bufptr) |
a0d0e21e | 821 | return; |
0453d815 | 822 | if (ckWARN_d(WARN_AMBIGUOUS)){ |
f248d071 | 823 | char ch = *s; |
0453d815 | 824 | *s = '\0'; |
9014280d | 825 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
219ef941 | 826 | "Warning: Use of \"%s\" without parentheses is ambiguous", |
0453d815 PM |
827 | PL_last_uni); |
828 | *s = ch; | |
829 | } | |
2f3197b3 LW |
830 | } |
831 | ||
ffb4593c NT |
832 | /* |
833 | * LOP : macro to build a list operator. Its behaviour has been replaced | |
834 | * with a subroutine, S_lop() for which LOP is just another name. | |
835 | */ | |
836 | ||
a0d0e21e LW |
837 | #define LOP(f,x) return lop(f,x,s) |
838 | ||
ffb4593c NT |
839 | /* |
840 | * S_lop | |
841 | * Build a list operator (or something that might be one). The rules: | |
842 | * - if we have a next token, then it's a list operator [why?] | |
843 | * - if the next thing is an opening paren, then it's a function | |
844 | * - else it's a list operator | |
845 | */ | |
846 | ||
76e3520e | 847 | STATIC I32 |
a0be28da | 848 | S_lop(pTHX_ I32 f, int x, char *s) |
ffed7fef | 849 | { |
79072805 | 850 | yylval.ival = f; |
35c8bce7 | 851 | CLINE; |
3280af22 NIS |
852 | PL_expect = x; |
853 | PL_bufptr = s; | |
854 | PL_last_lop = PL_oldbufptr; | |
eb160463 | 855 | PL_last_lop_op = (OPCODE)f; |
3280af22 | 856 | if (PL_nexttoke) |
f31bfe61 | 857 | return REPORT(LSTOP); |
79072805 | 858 | if (*s == '(') |
f31bfe61 | 859 | return REPORT(FUNC); |
79072805 LW |
860 | s = skipspace(s); |
861 | if (*s == '(') | |
f31bfe61 | 862 | return REPORT(FUNC); |
79072805 | 863 | else |
f31bfe61 | 864 | return REPORT(LSTOP); |
79072805 LW |
865 | } |
866 | ||
ffb4593c NT |
867 | /* |
868 | * S_force_next | |
9cbb5ea2 | 869 | * When the lexer realizes it knows the next token (for instance, |
ffb4593c | 870 | * it is reordering tokens for the parser) then it can call S_force_next |
9cbb5ea2 GS |
871 | * to know what token to return the next time the lexer is called. Caller |
872 | * will need to set PL_nextval[], and possibly PL_expect to ensure the lexer | |
873 | * handles the token correctly. | |
ffb4593c NT |
874 | */ |
875 | ||
4e553d73 | 876 | STATIC void |
cea2e8a9 | 877 | S_force_next(pTHX_ I32 type) |
79072805 | 878 | { |
3280af22 NIS |
879 | PL_nexttype[PL_nexttoke] = type; |
880 | PL_nexttoke++; | |
881 | if (PL_lex_state != LEX_KNOWNEXT) { | |
882 | PL_lex_defer = PL_lex_state; | |
883 | PL_lex_expect = PL_expect; | |
884 | PL_lex_state = LEX_KNOWNEXT; | |
79072805 LW |
885 | } |
886 | } | |
887 | ||
ffb4593c NT |
888 | /* |
889 | * S_force_word | |
890 | * When the lexer knows the next thing is a word (for instance, it has | |
891 | * just seen -> and it knows that the next char is a word char, then | |
892 | * it calls S_force_word to stick the next word into the PL_next lookahead. | |
893 | * | |
894 | * Arguments: | |
b1b65b59 | 895 | * char *start : buffer position (must be within PL_linestr) |
ffb4593c NT |
896 | * int token : PL_next will be this type of bare word (e.g., METHOD,WORD) |
897 | * int check_keyword : if true, Perl checks to make sure the word isn't | |
898 | * a keyword (do this if the word is a label, e.g. goto FOO) | |
899 | * int allow_pack : if true, : characters will also be allowed (require, | |
900 | * use, etc. do this) | |
9cbb5ea2 | 901 | * int allow_initial_tick : used by the "sub" lexer only. |
ffb4593c NT |
902 | */ |
903 | ||
76e3520e | 904 | STATIC char * |
cea2e8a9 | 905 | S_force_word(pTHX_ register char *start, int token, int check_keyword, int allow_pack, int allow_initial_tick) |
79072805 | 906 | { |
463ee0b2 LW |
907 | register char *s; |
908 | STRLEN len; | |
4e553d73 | 909 | |
463ee0b2 LW |
910 | start = skipspace(start); |
911 | s = start; | |
7e2040f0 | 912 | if (isIDFIRST_lazy_if(s,UTF) || |
a0d0e21e | 913 | (allow_pack && *s == ':') || |
15f0808c | 914 | (allow_initial_tick && *s == '\'') ) |
a0d0e21e | 915 | { |
3280af22 NIS |
916 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, allow_pack, &len); |
917 | if (check_keyword && keyword(PL_tokenbuf, len)) | |
463ee0b2 LW |
918 | return start; |
919 | if (token == METHOD) { | |
920 | s = skipspace(s); | |
921 | if (*s == '(') | |
3280af22 | 922 | PL_expect = XTERM; |
463ee0b2 | 923 | else { |
3280af22 | 924 | PL_expect = XOPERATOR; |
463ee0b2 | 925 | } |
79072805 | 926 | } |
3280af22 NIS |
927 | PL_nextval[PL_nexttoke].opval = (OP*)newSVOP(OP_CONST,0, newSVpv(PL_tokenbuf,0)); |
928 | PL_nextval[PL_nexttoke].opval->op_private |= OPpCONST_BARE; | |
c3a25dff JH |
929 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
930 | SvUTF8_on(((SVOP*)PL_nextval[PL_nexttoke].opval)->op_sv); | |
79072805 LW |
931 | force_next(token); |
932 | } | |
933 | return s; | |
934 | } | |
935 | ||
ffb4593c NT |
936 | /* |
937 | * S_force_ident | |
9cbb5ea2 | 938 | * Called when the lexer wants $foo *foo &foo etc, but the program |
ffb4593c NT |
939 | * text only contains the "foo" portion. The first argument is a pointer |
940 | * to the "foo", and the second argument is the type symbol to prefix. | |
941 | * Forces the next token to be a "WORD". | |
9cbb5ea2 | 942 | * Creates the symbol if it didn't already exist (via gv_fetchpv()). |
ffb4593c NT |
943 | */ |
944 | ||
76e3520e | 945 | STATIC void |
a00f3e00 | 946 | S_force_ident(pTHX_ register const char *s, int kind) |
79072805 LW |
947 | { |
948 | if (s && *s) { | |
a00f3e00 | 949 | OP* const o = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0)); |
3280af22 | 950 | PL_nextval[PL_nexttoke].opval = o; |
79072805 | 951 | force_next(WORD); |
748a9306 | 952 | if (kind) { |
11343788 | 953 | o->op_private = OPpCONST_ENTERED; |
55497cff | 954 | /* XXX see note in pp_entereval() for why we forgo typo |
955 | warnings if the symbol must be introduced in an eval. | |
956 | GSAR 96-10-12 */ | |
3280af22 | 957 | gv_fetchpv(s, PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : TRUE, |
a0d0e21e LW |
958 | kind == '$' ? SVt_PV : |
959 | kind == '@' ? SVt_PVAV : | |
960 | kind == '%' ? SVt_PVHV : | |
961 | SVt_PVGV | |
962 | ); | |
748a9306 | 963 | } |
79072805 LW |
964 | } |
965 | } | |
966 | ||
1571675a GS |
967 | NV |
968 | Perl_str_to_version(pTHX_ SV *sv) | |
969 | { | |
970 | NV retval = 0.0; | |
971 | NV nshift = 1.0; | |
972 | STRLEN len; | |
24c2fff4 NC |
973 | const char *start = SvPVx(sv,len); |
974 | const char *end = start + len; | |
3aa33fe5 | 975 | bool utf = SvUTF8(sv) ? TRUE : FALSE; |
1571675a | 976 | while (start < end) { |
ba210ebe | 977 | STRLEN skip; |
1571675a GS |
978 | UV n; |
979 | if (utf) | |
9041c2e3 | 980 | n = utf8n_to_uvchr((U8*)start, len, &skip, 0); |
1571675a GS |
981 | else { |
982 | n = *(U8*)start; | |
983 | skip = 1; | |
984 | } | |
985 | retval += ((NV)n)/nshift; | |
986 | start += skip; | |
987 | nshift *= 1000; | |
988 | } | |
989 | return retval; | |
990 | } | |
991 | ||
4e553d73 | 992 | /* |
ffb4593c NT |
993 | * S_force_version |
994 | * Forces the next token to be a version number. | |
e759cc13 RGS |
995 | * If the next token appears to be an invalid version number, (e.g. "v2b"), |
996 | * and if "guessing" is TRUE, then no new token is created (and the caller | |
997 | * must use an alternative parsing method). | |
ffb4593c NT |
998 | */ |
999 | ||
76e3520e | 1000 | STATIC char * |
e759cc13 | 1001 | S_force_version(pTHX_ char *s, int guessing) |
89bfa8cd | 1002 | { |
1003 | OP *version = Nullop; | |
44dcb63b | 1004 | char *d; |
89bfa8cd | 1005 | |
1006 | s = skipspace(s); | |
1007 | ||
44dcb63b | 1008 | d = s; |
dd629d5b | 1009 | if (*d == 'v') |
44dcb63b | 1010 | d++; |
44dcb63b | 1011 | if (isDIGIT(*d)) { |
e759cc13 RGS |
1012 | while (isDIGIT(*d) || *d == '_' || *d == '.') |
1013 | d++; | |
9f3d182e | 1014 | if (*d == ';' || isSPACE(*d) || *d == '}' || !*d) { |
dd629d5b | 1015 | SV *ver; |
b73d6f50 | 1016 | s = scan_num(s, &yylval); |
89bfa8cd | 1017 | version = yylval.opval; |
dd629d5b GS |
1018 | ver = cSVOPx(version)->op_sv; |
1019 | if (SvPOK(ver) && !SvNIOK(ver)) { | |
155aba94 | 1020 | (void)SvUPGRADE(ver, SVt_PVNV); |
0da6cfda | 1021 | SvNV_set(ver, str_to_version(ver)); |
1571675a | 1022 | SvNOK_on(ver); /* hint that it is a version */ |
44dcb63b | 1023 | } |
89bfa8cd | 1024 | } |
e759cc13 RGS |
1025 | else if (guessing) |
1026 | return s; | |
89bfa8cd | 1027 | } |
1028 | ||
1029 | /* NOTE: The parser sees the package name and the VERSION swapped */ | |
3280af22 | 1030 | PL_nextval[PL_nexttoke].opval = version; |
4e553d73 | 1031 | force_next(WORD); |
89bfa8cd | 1032 | |
e759cc13 | 1033 | return s; |
89bfa8cd | 1034 | } |
1035 | ||
ffb4593c NT |
1036 | /* |
1037 | * S_tokeq | |
1038 | * Tokenize a quoted string passed in as an SV. It finds the next | |
1039 | * chunk, up to end of string or a backslash. It may make a new | |
1040 | * SV containing that chunk (if HINT_NEW_STRING is on). It also | |
1041 | * turns \\ into \. | |
1042 | */ | |
1043 | ||
76e3520e | 1044 | STATIC SV * |
cea2e8a9 | 1045 | S_tokeq(pTHX_ SV *sv) |
79072805 LW |
1046 | { |
1047 | register char *s; | |
1048 | register char *send; | |
1049 | register char *d; | |
b3ac6de7 IZ |
1050 | STRLEN len = 0; |
1051 | SV *pv = sv; | |
79072805 LW |
1052 | |
1053 | if (!SvLEN(sv)) | |
b3ac6de7 | 1054 | goto finish; |
79072805 | 1055 | |
a0d0e21e | 1056 | s = SvPV_force(sv, len); |
21a311ee | 1057 | if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) |
b3ac6de7 | 1058 | goto finish; |
463ee0b2 | 1059 | send = s + len; |
79072805 LW |
1060 | while (s < send && *s != '\\') |
1061 | s++; | |
1062 | if (s == send) | |
b3ac6de7 | 1063 | goto finish; |
79072805 | 1064 | d = s; |
be4731d2 | 1065 | if ( PL_hints & HINT_NEW_STRING ) { |
5e7e76a3 | 1066 | pv = sv_2mortal(newSVpvn(SvPVX_const(pv), len)); |
be4731d2 NIS |
1067 | if (SvUTF8(sv)) |
1068 | SvUTF8_on(pv); | |
1069 | } | |
79072805 LW |
1070 | while (s < send) { |
1071 | if (*s == '\\') { | |
a0d0e21e | 1072 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
1073 | s++; /* all that, just for this */ |
1074 | } | |
1075 | *d++ = *s++; | |
1076 | } | |
1077 | *d = '\0'; | |
5e7e76a3 | 1078 | SvCUR_set(sv, d - SvPVX_const(sv)); |
b3ac6de7 | 1079 | finish: |
3280af22 | 1080 | if ( PL_hints & HINT_NEW_STRING ) |
b3ac6de7 | 1081 | return new_constant(NULL, 0, "q", sv, pv, "q"); |
79072805 LW |
1082 | return sv; |
1083 | } | |
1084 | ||
ffb4593c NT |
1085 | /* |
1086 | * Now come three functions related to double-quote context, | |
1087 | * S_sublex_start, S_sublex_push, and S_sublex_done. They're used when | |
1088 | * converting things like "\u\Lgnat" into ucfirst(lc("gnat")). They | |
1089 | * interact with PL_lex_state, and create fake ( ... ) argument lists | |
1090 | * to handle functions and concatenation. | |
1091 | * They assume that whoever calls them will be setting up a fake | |
1092 | * join call, because each subthing puts a ',' after it. This lets | |
1093 | * "lower \luPpEr" | |
1094 | * become | |
1095 | * join($, , 'lower ', lcfirst( 'uPpEr', ) ,) | |
1096 | * | |
1097 | * (I'm not sure whether the spurious commas at the end of lcfirst's | |
1098 | * arguments and join's arguments are created or not). | |
1099 | */ | |
1100 | ||
1101 | /* | |
1102 | * S_sublex_start | |
1103 | * Assumes that yylval.ival is the op we're creating (e.g. OP_LCFIRST). | |
1104 | * | |
1105 | * Pattern matching will set PL_lex_op to the pattern-matching op to | |
1106 | * make (we return THING if yylval.ival is OP_NULL, PMFUNC otherwise). | |
1107 | * | |
1108 | * OP_CONST and OP_READLINE are easy--just make the new op and return. | |
1109 | * | |
1110 | * Everything else becomes a FUNC. | |
1111 | * | |
1112 | * Sets PL_lex_state to LEX_INTERPPUSH unless (ival was OP_NULL or we | |
1113 | * had an OP_CONST or OP_READLINE). This just sets us up for a | |
1114 | * call to S_sublex_push(). | |
1115 | */ | |
1116 | ||
76e3520e | 1117 | STATIC I32 |
cea2e8a9 | 1118 | S_sublex_start(pTHX) |
79072805 | 1119 | { |
24c2fff4 | 1120 | const register I32 op_type = yylval.ival; |
79072805 LW |
1121 | |
1122 | if (op_type == OP_NULL) { | |
3280af22 NIS |
1123 | yylval.opval = PL_lex_op; |
1124 | PL_lex_op = Nullop; | |
79072805 LW |
1125 | return THING; |
1126 | } | |
1127 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
3280af22 | 1128 | SV *sv = tokeq(PL_lex_stuff); |
b3ac6de7 IZ |
1129 | |
1130 | if (SvTYPE(sv) == SVt_PVIV) { | |
1131 | /* Overloaded constants, nothing fancy: Convert to SVt_PV: */ | |
1132 | STRLEN len; | |
24c2fff4 NC |
1133 | const char *p = SvPV(sv, len); |
1134 | SV * const nsv = newSVpvn(p, len); | |
01ec43d0 GS |
1135 | if (SvUTF8(sv)) |
1136 | SvUTF8_on(nsv); | |
b3ac6de7 IZ |
1137 | SvREFCNT_dec(sv); |
1138 | sv = nsv; | |
4e553d73 | 1139 | } |
b3ac6de7 | 1140 | yylval.opval = (OP*)newSVOP(op_type, 0, sv); |
3280af22 | 1141 | PL_lex_stuff = Nullsv; |
79072805 LW |
1142 | return THING; |
1143 | } | |
1144 | ||
3280af22 NIS |
1145 | PL_sublex_info.super_state = PL_lex_state; |
1146 | PL_sublex_info.sub_inwhat = op_type; | |
1147 | PL_sublex_info.sub_op = PL_lex_op; | |
1148 | PL_lex_state = LEX_INTERPPUSH; | |
55497cff | 1149 | |
3280af22 NIS |
1150 | PL_expect = XTERM; |
1151 | if (PL_lex_op) { | |
1152 | yylval.opval = PL_lex_op; | |
1153 | PL_lex_op = Nullop; | |
55497cff | 1154 | return PMFUNC; |
1155 | } | |
1156 | else | |
1157 | return FUNC; | |
1158 | } | |
1159 | ||
ffb4593c NT |
1160 | /* |
1161 | * S_sublex_push | |
1162 | * Create a new scope to save the lexing state. The scope will be | |
1163 | * ended in S_sublex_done. Returns a '(', starting the function arguments | |
1164 | * to the uc, lc, etc. found before. | |
1165 | * Sets PL_lex_state to LEX_INTERPCONCAT. | |
1166 | */ | |
1167 | ||
76e3520e | 1168 | STATIC I32 |
cea2e8a9 | 1169 | S_sublex_push(pTHX) |
55497cff | 1170 | { |
f46d017c | 1171 | ENTER; |
55497cff | 1172 | |
3280af22 NIS |
1173 | PL_lex_state = PL_sublex_info.super_state; |
1174 | SAVEI32(PL_lex_dojoin); | |
1175 | SAVEI32(PL_lex_brackets); | |
3280af22 NIS |
1176 | SAVEI32(PL_lex_casemods); |
1177 | SAVEI32(PL_lex_starts); | |
1178 | SAVEI32(PL_lex_state); | |
7766f137 | 1179 | SAVEVPTR(PL_lex_inpat); |
3280af22 | 1180 | SAVEI32(PL_lex_inwhat); |
57843af0 | 1181 | SAVECOPLINE(PL_curcop); |
3280af22 | 1182 | SAVEPPTR(PL_bufptr); |
8452ff4b | 1183 | SAVEPPTR(PL_bufend); |
3280af22 NIS |
1184 | SAVEPPTR(PL_oldbufptr); |
1185 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
1186 | SAVEPPTR(PL_last_lop); |
1187 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
1188 | SAVEPPTR(PL_linestart); |
1189 | SAVESPTR(PL_linestr); | |
bda19f49 JH |
1190 | SAVEGENERICPV(PL_lex_brackstack); |
1191 | SAVEGENERICPV(PL_lex_casestack); | |
3280af22 NIS |
1192 | |
1193 | PL_linestr = PL_lex_stuff; | |
1194 | PL_lex_stuff = Nullsv; | |
1195 | ||
9cbb5ea2 GS |
1196 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart |
1197 | = SvPVX(PL_linestr); | |
3280af22 | 1198 | PL_bufend += SvCUR(PL_linestr); |
207e3d1a | 1199 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 NIS |
1200 | SAVEFREESV(PL_linestr); |
1201 | ||
1202 | PL_lex_dojoin = FALSE; | |
1203 | PL_lex_brackets = 0; | |
3280af22 NIS |
1204 | New(899, PL_lex_brackstack, 120, char); |
1205 | New(899, PL_lex_casestack, 12, char); | |
3280af22 NIS |
1206 | PL_lex_casemods = 0; |
1207 | *PL_lex_casestack = '\0'; | |
1208 | PL_lex_starts = 0; | |
1209 | PL_lex_state = LEX_INTERPCONCAT; | |
eb160463 | 1210 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 NIS |
1211 | |
1212 | PL_lex_inwhat = PL_sublex_info.sub_inwhat; | |
1213 | if (PL_lex_inwhat == OP_MATCH || PL_lex_inwhat == OP_QR || PL_lex_inwhat == OP_SUBST) | |
1214 | PL_lex_inpat = PL_sublex_info.sub_op; | |
79072805 | 1215 | else |
3280af22 | 1216 | PL_lex_inpat = Nullop; |
79072805 | 1217 | |
55497cff | 1218 | return '('; |
79072805 LW |
1219 | } |
1220 | ||
ffb4593c NT |
1221 | /* |
1222 | * S_sublex_done | |
1223 | * Restores lexer state after a S_sublex_push. | |
1224 | */ | |
1225 | ||
76e3520e | 1226 | STATIC I32 |
cea2e8a9 | 1227 | S_sublex_done(pTHX) |
79072805 | 1228 | { |
3280af22 | 1229 | if (!PL_lex_starts++) { |
9aa983d2 JH |
1230 | SV *sv = newSVpvn("",0); |
1231 | if (SvUTF8(PL_linestr)) | |
1232 | SvUTF8_on(sv); | |
3280af22 | 1233 | PL_expect = XOPERATOR; |
9aa983d2 | 1234 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
79072805 LW |
1235 | return THING; |
1236 | } | |
1237 | ||
3280af22 NIS |
1238 | if (PL_lex_casemods) { /* oops, we've got some unbalanced parens */ |
1239 | PL_lex_state = LEX_INTERPCASEMOD; | |
cea2e8a9 | 1240 | return yylex(); |
79072805 LW |
1241 | } |
1242 | ||
ffb4593c | 1243 | /* Is there a right-hand side to take care of? (s//RHS/ or tr//RHS/) */ |
3280af22 NIS |
1244 | if (PL_lex_repl && (PL_lex_inwhat == OP_SUBST || PL_lex_inwhat == OP_TRANS)) { |
1245 | PL_linestr = PL_lex_repl; | |
1246 | PL_lex_inpat = 0; | |
1247 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
1248 | PL_bufend += SvCUR(PL_linestr); | |
207e3d1a | 1249 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 NIS |
1250 | SAVEFREESV(PL_linestr); |
1251 | PL_lex_dojoin = FALSE; | |
1252 | PL_lex_brackets = 0; | |
3280af22 NIS |
1253 | PL_lex_casemods = 0; |
1254 | *PL_lex_casestack = '\0'; | |
1255 | PL_lex_starts = 0; | |
25da4f38 | 1256 | if (SvEVALED(PL_lex_repl)) { |
3280af22 NIS |
1257 | PL_lex_state = LEX_INTERPNORMAL; |
1258 | PL_lex_starts++; | |
e9fa98b2 HS |
1259 | /* we don't clear PL_lex_repl here, so that we can check later |
1260 | whether this is an evalled subst; that means we rely on the | |
1261 | logic to ensure sublex_done() is called again only via the | |
1262 | branch (in yylex()) that clears PL_lex_repl, else we'll loop */ | |
79072805 | 1263 | } |
e9fa98b2 | 1264 | else { |
3280af22 | 1265 | PL_lex_state = LEX_INTERPCONCAT; |
e9fa98b2 HS |
1266 | PL_lex_repl = Nullsv; |
1267 | } | |
79072805 | 1268 | return ','; |
ffed7fef LW |
1269 | } |
1270 | else { | |
f46d017c | 1271 | LEAVE; |
3280af22 NIS |
1272 | PL_bufend = SvPVX(PL_linestr); |
1273 | PL_bufend += SvCUR(PL_linestr); | |
1274 | PL_expect = XOPERATOR; | |
09bef843 | 1275 | PL_sublex_info.sub_inwhat = 0; |
79072805 | 1276 | return ')'; |
ffed7fef LW |
1277 | } |
1278 | } | |
1279 | ||
02aa26ce NT |
1280 | /* |
1281 | scan_const | |
1282 | ||
1283 | Extracts a pattern, double-quoted string, or transliteration. This | |
1284 | is terrifying code. | |
1285 | ||
3280af22 NIS |
1286 | It looks at lex_inwhat and PL_lex_inpat to find out whether it's |
1287 | processing a pattern (PL_lex_inpat is true), a transliteration | |
02aa26ce NT |
1288 | (lex_inwhat & OP_TRANS is true), or a double-quoted string. |
1289 | ||
9b599b2a GS |
1290 | Returns a pointer to the character scanned up to. Iff this is |
1291 | advanced from the start pointer supplied (ie if anything was | |
1292 | successfully parsed), will leave an OP for the substring scanned | |
1293 | in yylval. Caller must intuit reason for not parsing further | |
1294 | by looking at the next characters herself. | |
1295 | ||
02aa26ce NT |
1296 | In patterns: |
1297 | backslashes: | |
1298 | double-quoted style: \r and \n | |
1299 | regexp special ones: \D \s | |
1300 | constants: \x3 | |
1301 | backrefs: \1 (deprecated in substitution replacements) | |
1302 | case and quoting: \U \Q \E | |
1303 | stops on @ and $, but not for $ as tail anchor | |
1304 | ||
1305 | In transliterations: | |
1306 | characters are VERY literal, except for - not at the start or end | |
1307 | of the string, which indicates a range. scan_const expands the | |
1308 | range to the full set of intermediate characters. | |
1309 | ||
1310 | In double-quoted strings: | |
1311 | backslashes: | |
1312 | double-quoted style: \r and \n | |
1313 | constants: \x3 | |
1314 | backrefs: \1 (deprecated) | |
1315 | case and quoting: \U \Q \E | |
1316 | stops on @ and $ | |
1317 | ||
1318 | scan_const does *not* construct ops to handle interpolated strings. | |
1319 | It stops processing as soon as it finds an embedded $ or @ variable | |
1320 | and leaves it to the caller to work out what's going on. | |
1321 | ||
da6eedaa | 1322 | @ in pattern could be: @foo, @{foo}, @$foo, @'foo, @::foo. |
02aa26ce NT |
1323 | |
1324 | $ in pattern could be $foo or could be tail anchor. Assumption: | |
1325 | it's a tail anchor if $ is the last thing in the string, or if it's | |
1326 | followed by one of ")| \n\t" | |
1327 | ||
1328 | \1 (backreferences) are turned into $1 | |
1329 | ||
1330 | The structure of the code is | |
1331 | while (there's a character to process) { | |
1332 | handle transliteration ranges | |
1333 | skip regexp comments | |
1334 | skip # initiated comments in //x patterns | |
1335 | check for embedded @foo | |
1336 | check for embedded scalars | |
1337 | if (backslash) { | |
1338 | leave intact backslashes from leave (below) | |
1339 | deprecate \1 in strings and sub replacements | |
1340 | handle string-changing backslashes \l \U \Q \E, etc. | |
1341 | switch (what was escaped) { | |
1342 | handle - in a transliteration (becomes a literal -) | |
1343 | handle \132 octal characters | |
1344 | handle 0x15 hex characters | |
1345 | handle \cV (control V) | |
1346 | handle printf backslashes (\f, \r, \n, etc) | |
1347 | } (end switch) | |
1348 | } (end if backslash) | |
1349 | } (end while character to read) | |
4e553d73 | 1350 | |
02aa26ce NT |
1351 | */ |
1352 | ||
76e3520e | 1353 | STATIC char * |
cea2e8a9 | 1354 | S_scan_const(pTHX_ char *start) |
79072805 | 1355 | { |
3280af22 | 1356 | register char *send = PL_bufend; /* end of the constant */ |
02aa26ce NT |
1357 | SV *sv = NEWSV(93, send - start); /* sv for the constant */ |
1358 | register char *s = start; /* start of the constant */ | |
1359 | register char *d = SvPVX(sv); /* destination for copies */ | |
1360 | bool dorange = FALSE; /* are we in a translit range? */ | |
c2e66d9e | 1361 | bool didrange = FALSE; /* did we just finish a range? */ |
2b9d42f0 NIS |
1362 | I32 has_utf8 = FALSE; /* Output constant is UTF8 */ |
1363 | I32 this_utf8 = UTF; /* The source string is assumed to be UTF8 */ | |
012bcf8d GS |
1364 | UV uv; |
1365 | ||
dff6d3cd | 1366 | const char *leaveit = /* set of acceptably-backslashed characters */ |
3280af22 | 1367 | PL_lex_inpat |
b035a42e | 1368 | ? "\\.^$@AGZdDwWsSbBpPXC+*?|()-nrtfeaxz0123456789[{]} \t\n\r\f\v#" |
9b599b2a | 1369 | : ""; |
79072805 | 1370 | |
2b9d42f0 NIS |
1371 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
1372 | /* If we are doing a trans and we know we want UTF8 set expectation */ | |
1373 | has_utf8 = PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF); | |
1374 | this_utf8 = PL_sublex_info.sub_op->op_private & (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
1375 | } | |
1376 | ||
1377 | ||
79072805 | 1378 | while (s < send || dorange) { |
02aa26ce | 1379 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 1380 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 1381 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 1382 | if (dorange) { |
1ba5c669 JH |
1383 | I32 i; /* current expanded character */ |
1384 | I32 min; /* first character in range */ | |
1385 | I32 max; /* last character in range */ | |
02aa26ce | 1386 | |
2b9d42f0 | 1387 | if (has_utf8) { |
8973db79 JH |
1388 | char *c = (char*)utf8_hop((U8*)d, -1); |
1389 | char *e = d++; | |
1390 | while (e-- > c) | |
1391 | *(e + 1) = *e; | |
25716404 | 1392 | *c = (char)UTF_TO_NATIVE(0xff); |
8973db79 JH |
1393 | /* mark the range as done, and continue */ |
1394 | dorange = FALSE; | |
1395 | didrange = TRUE; | |
1396 | continue; | |
1397 | } | |
2b9d42f0 | 1398 | |
5e7e76a3 | 1399 | i = d - SvPVX_const(sv); /* remember current offset */ |
9cbb5ea2 GS |
1400 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
1401 | d = SvPVX(sv) + i; /* refresh d after realloc */ | |
02aa26ce NT |
1402 | d -= 2; /* eat the first char and the - */ |
1403 | ||
8ada0baa JH |
1404 | min = (U8)*d; /* first char in range */ |
1405 | max = (U8)d[1]; /* last char in range */ | |
1406 | ||
c2e66d9e | 1407 | if (min > max) { |
01ec43d0 | 1408 | Perl_croak(aTHX_ |
5b7ea690 | 1409 | "Invalid range \"%c-%c\" in transliteration operator", |
1ba5c669 | 1410 | (char)min, (char)max); |
c2e66d9e GS |
1411 | } |
1412 | ||
c7f1f016 | 1413 | #ifdef EBCDIC |
8ada0baa JH |
1414 | if ((isLOWER(min) && isLOWER(max)) || |
1415 | (isUPPER(min) && isUPPER(max))) { | |
1416 | if (isLOWER(min)) { | |
1417 | for (i = min; i <= max; i++) | |
1418 | if (isLOWER(i)) | |
db42d148 | 1419 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1420 | } else { |
1421 | for (i = min; i <= max; i++) | |
1422 | if (isUPPER(i)) | |
db42d148 | 1423 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1424 | } |
1425 | } | |
1426 | else | |
1427 | #endif | |
1428 | for (i = min; i <= max; i++) | |
eb160463 | 1429 | *d++ = (char)i; |
02aa26ce NT |
1430 | |
1431 | /* mark the range as done, and continue */ | |
79072805 | 1432 | dorange = FALSE; |
01ec43d0 | 1433 | didrange = TRUE; |
79072805 | 1434 | continue; |
4e553d73 | 1435 | } |
02aa26ce NT |
1436 | |
1437 | /* range begins (ignore - as first or last char) */ | |
79072805 | 1438 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 1439 | if (didrange) { |
1fafa243 | 1440 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 1441 | } |
2b9d42f0 | 1442 | if (has_utf8) { |
25716404 | 1443 | *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
1444 | s++; |
1445 | continue; | |
1446 | } | |
79072805 LW |
1447 | dorange = TRUE; |
1448 | s++; | |
01ec43d0 GS |
1449 | } |
1450 | else { | |
1451 | didrange = FALSE; | |
1452 | } | |
79072805 | 1453 | } |
02aa26ce NT |
1454 | |
1455 | /* if we get here, we're not doing a transliteration */ | |
1456 | ||
0f5d15d6 IZ |
1457 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
1458 | except for the last char, which will be done separately. */ | |
3280af22 | 1459 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 | 1460 | if (s[2] == '#') { |
a00160b9 | 1461 | while (s+1 < send && *s != ')') |
db42d148 | 1462 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
155aba94 GS |
1463 | } |
1464 | else if (s[2] == '{' /* This should match regcomp.c */ | |
1465 | || ((s[2] == 'p' || s[2] == '?') && s[3] == '{')) | |
1466 | { | |
cc6b7395 | 1467 | I32 count = 1; |
0f5d15d6 | 1468 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
1469 | char c; |
1470 | ||
d9f97599 GS |
1471 | while (count && (c = *regparse)) { |
1472 | if (c == '\\' && regparse[1]) | |
1473 | regparse++; | |
4e553d73 | 1474 | else if (c == '{') |
cc6b7395 | 1475 | count++; |
4e553d73 | 1476 | else if (c == '}') |
cc6b7395 | 1477 | count--; |
d9f97599 | 1478 | regparse++; |
cc6b7395 | 1479 | } |
a00160b9 | 1480 | if (*regparse != ')') |
5bdf89e7 | 1481 | regparse--; /* Leave one char for continuation. */ |
0f5d15d6 | 1482 | while (s < regparse) |
db42d148 | 1483 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
cc6b7395 | 1484 | } |
748a9306 | 1485 | } |
02aa26ce NT |
1486 | |
1487 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
1488 | else if (*s == '#' && PL_lex_inpat && |
1489 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 | 1490 | while (s+1 < send && *s != '\n') |
db42d148 | 1491 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
748a9306 | 1492 | } |
02aa26ce | 1493 | |
5d1d4326 | 1494 | /* check for embedded arrays |
da6eedaa | 1495 | (@foo, @::foo, @'foo, @{foo}, @$foo, @+, @-) |
5d1d4326 | 1496 | */ |
7e2040f0 | 1497 | else if (*s == '@' && s[1] |
5d1d4326 | 1498 | && (isALNUM_lazy_if(s+1,UTF) || strchr(":'{$+-", s[1]))) |
79072805 | 1499 | break; |
02aa26ce NT |
1500 | |
1501 | /* check for embedded scalars. only stop if we're sure it's a | |
1502 | variable. | |
1503 | */ | |
79072805 | 1504 | else if (*s == '$') { |
3280af22 | 1505 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 1506 | break; |
6002328a | 1507 | if (s + 1 < send && !strchr("()| \r\n\t", s[1])) |
79072805 LW |
1508 | break; /* in regexp, $ might be tail anchor */ |
1509 | } | |
02aa26ce | 1510 | |
2b9d42f0 NIS |
1511 | /* End of else if chain - OP_TRANS rejoin rest */ |
1512 | ||
02aa26ce | 1513 | /* backslashes */ |
79072805 LW |
1514 | if (*s == '\\' && s+1 < send) { |
1515 | s++; | |
02aa26ce NT |
1516 | |
1517 | /* some backslashes we leave behind */ | |
c9f97d15 | 1518 | if (*leaveit && *s && strchr(leaveit, *s)) { |
db42d148 NIS |
1519 | *d++ = NATIVE_TO_NEED(has_utf8,'\\'); |
1520 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
79072805 LW |
1521 | continue; |
1522 | } | |
02aa26ce NT |
1523 | |
1524 | /* deprecate \1 in strings and substitution replacements */ | |
3280af22 | 1525 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 1526 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 1527 | { |
599cee73 | 1528 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 1529 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s); |
79072805 LW |
1530 | *--s = '$'; |
1531 | break; | |
1532 | } | |
02aa26ce NT |
1533 | |
1534 | /* string-change backslash escapes */ | |
3280af22 | 1535 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
1536 | --s; |
1537 | break; | |
1538 | } | |
02aa26ce NT |
1539 | |
1540 | /* if we get here, it's either a quoted -, or a digit */ | |
79072805 | 1541 | switch (*s) { |
02aa26ce NT |
1542 | |
1543 | /* quoted - in transliterations */ | |
79072805 | 1544 | case '-': |
3280af22 | 1545 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
1546 | *d++ = *s++; |
1547 | continue; | |
1548 | } | |
1549 | /* FALL THROUGH */ | |
1550 | default: | |
11b8faa4 | 1551 | { |
707afd92 | 1552 | if (ckWARN(WARN_MISC) && |
a00f3e00 | 1553 | isALNUM(*s) && |
707afd92 | 1554 | *s != '_') |
9014280d | 1555 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
11b8faa4 JH |
1556 | "Unrecognized escape \\%c passed through", |
1557 | *s); | |
1558 | /* default action is to copy the quoted character */ | |
f9a63242 | 1559 | goto default_action; |
11b8faa4 | 1560 | } |
02aa26ce NT |
1561 | |
1562 | /* \132 indicates an octal constant */ | |
79072805 LW |
1563 | case '0': case '1': case '2': case '3': |
1564 | case '4': case '5': case '6': case '7': | |
ba210ebe | 1565 | { |
53305cf1 NC |
1566 | I32 flags = 0; |
1567 | STRLEN len = 3; | |
1568 | uv = grok_oct(s, &len, &flags, NULL); | |
ba210ebe JH |
1569 | s += len; |
1570 | } | |
012bcf8d | 1571 | goto NUM_ESCAPE_INSERT; |
02aa26ce NT |
1572 | |
1573 | /* \x24 indicates a hex constant */ | |
79072805 | 1574 | case 'x': |
a0ed51b3 LW |
1575 | ++s; |
1576 | if (*s == '{') { | |
1577 | char* e = strchr(s, '}'); | |
a4c04bdc NC |
1578 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
1579 | PERL_SCAN_DISALLOW_PREFIX; | |
53305cf1 | 1580 | STRLEN len; |
355860ce | 1581 | |
53305cf1 | 1582 | ++s; |
adaeee49 | 1583 | if (!e) { |
a0ed51b3 | 1584 | yyerror("Missing right brace on \\x{}"); |
355860ce | 1585 | continue; |
ba210ebe | 1586 | } |
53305cf1 NC |
1587 | len = e - s; |
1588 | uv = grok_hex(s, &len, &flags, NULL); | |
ba210ebe | 1589 | s = e + 1; |
a0ed51b3 LW |
1590 | } |
1591 | else { | |
ba210ebe | 1592 | { |
53305cf1 | 1593 | STRLEN len = 2; |
a4c04bdc | 1594 | I32 flags = PERL_SCAN_DISALLOW_PREFIX; |
53305cf1 | 1595 | uv = grok_hex(s, &len, &flags, NULL); |
ba210ebe JH |
1596 | s += len; |
1597 | } | |
012bcf8d GS |
1598 | } |
1599 | ||
1600 | NUM_ESCAPE_INSERT: | |
1601 | /* Insert oct or hex escaped character. | |
301d3d20 | 1602 | * There will always enough room in sv since such |
db42d148 | 1603 | * escapes will be longer than any UTF-8 sequence |
301d3d20 | 1604 | * they can end up as. */ |
ba7cea30 | 1605 | |
c7f1f016 NIS |
1606 | /* We need to map to chars to ASCII before doing the tests |
1607 | to cover EBCDIC | |
1608 | */ | |
c4d5f83a | 1609 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(uv))) { |
9aa983d2 | 1610 | if (!has_utf8 && uv > 255) { |
301d3d20 JH |
1611 | /* Might need to recode whatever we have |
1612 | * accumulated so far if it contains any | |
1613 | * hibit chars. | |
1614 | * | |
1615 | * (Can't we keep track of that and avoid | |
1616 | * this rescan? --jhi) | |
012bcf8d | 1617 | */ |
c7f1f016 | 1618 | int hicount = 0; |
63cd0674 NIS |
1619 | U8 *c; |
1620 | for (c = (U8 *) SvPVX(sv); c < (U8 *)d; c++) { | |
c4d5f83a | 1621 | if (!NATIVE_IS_INVARIANT(*c)) { |
012bcf8d | 1622 | hicount++; |
db42d148 | 1623 | } |
012bcf8d | 1624 | } |
63cd0674 | 1625 | if (hicount) { |
5e7e76a3 | 1626 | STRLEN offset = d - SvPVX_const(sv); |
db42d148 NIS |
1627 | U8 *src, *dst; |
1628 | d = SvGROW(sv, SvLEN(sv) + hicount + 1) + offset; | |
1629 | src = (U8 *)d - 1; | |
1630 | dst = src+hicount; | |
1631 | d += hicount; | |
1632 | while (src >= (U8 *)SvPVX(sv)) { | |
c4d5f83a | 1633 | if (!NATIVE_IS_INVARIANT(*src)) { |
63cd0674 | 1634 | U8 ch = NATIVE_TO_ASCII(*src); |
eb160463 GS |
1635 | *dst-- = (U8)UTF8_EIGHT_BIT_LO(ch); |
1636 | *dst-- = (U8)UTF8_EIGHT_BIT_HI(ch); | |
012bcf8d GS |
1637 | } |
1638 | else { | |
63cd0674 | 1639 | *dst-- = *src; |
012bcf8d | 1640 | } |
c7f1f016 | 1641 | src--; |
012bcf8d GS |
1642 | } |
1643 | } | |
1644 | } | |
1645 | ||
9aa983d2 | 1646 | if (has_utf8 || uv > 255) { |
9041c2e3 | 1647 | d = (char*)uvchr_to_utf8((U8*)d, uv); |
4e553d73 | 1648 | has_utf8 = TRUE; |
f9a63242 JH |
1649 | if (PL_lex_inwhat == OP_TRANS && |
1650 | PL_sublex_info.sub_op) { | |
1651 | PL_sublex_info.sub_op->op_private |= | |
1652 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
1653 | : OPpTRANS_TO_UTF); | |
f9a63242 | 1654 | } |
012bcf8d | 1655 | } |
a0ed51b3 | 1656 | else { |
012bcf8d | 1657 | *d++ = (char)uv; |
a0ed51b3 | 1658 | } |
012bcf8d GS |
1659 | } |
1660 | else { | |
c4d5f83a | 1661 | *d++ = (char) uv; |
a0ed51b3 | 1662 | } |
79072805 | 1663 | continue; |
02aa26ce | 1664 | |
b239daa5 | 1665 | /* \N{LATIN SMALL LETTER A} is a named character */ |
4a2d328f | 1666 | case 'N': |
55eda711 | 1667 | ++s; |
423cee85 JH |
1668 | if (*s == '{') { |
1669 | char* e = strchr(s, '}'); | |
155aba94 | 1670 | SV *res; |
423cee85 JH |
1671 | STRLEN len; |
1672 | char *str; | |
4e553d73 | 1673 | |
423cee85 | 1674 | if (!e) { |
5777a3f7 | 1675 | yyerror("Missing right brace on \\N{}"); |
423cee85 JH |
1676 | e = s - 1; |
1677 | goto cont_scan; | |
1678 | } | |
dbc0d4f2 JH |
1679 | if (e > s + 2 && s[1] == 'U' && s[2] == '+') { |
1680 | /* \N{U+...} */ | |
1681 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | | |
1682 | PERL_SCAN_DISALLOW_PREFIX; | |
1683 | s += 3; | |
1684 | len = e - s; | |
1685 | uv = grok_hex(s, &len, &flags, NULL); | |
1686 | s = e + 1; | |
1687 | goto NUM_ESCAPE_INSERT; | |
1688 | } | |
55eda711 JH |
1689 | res = newSVpvn(s + 1, e - s - 1); |
1690 | res = new_constant( Nullch, 0, "charnames", | |
1691 | res, Nullsv, "\\N{...}" ); | |
f9a63242 JH |
1692 | if (has_utf8) |
1693 | sv_utf8_upgrade(res); | |
423cee85 | 1694 | str = SvPV(res,len); |
1c47067b JH |
1695 | #ifdef EBCDIC_NEVER_MIND |
1696 | /* charnames uses pack U and that has been | |
1697 | * recently changed to do the below uni->native | |
1698 | * mapping, so this would be redundant (and wrong, | |
1699 | * the code point would be doubly converted). | |
1700 | * But leave this in just in case the pack U change | |
1701 | * gets revoked, but the semantics is still | |
1702 | * desireable for charnames. --jhi */ | |
cddc7ef4 JH |
1703 | { |
1704 | UV uv = utf8_to_uvchr((U8*)str, 0); | |
1705 | ||
1706 | if (uv < 0x100) { | |
a2a469f9 | 1707 | U8 tmpbuf[UTF8_MAXBYTES+1], *d; |
cddc7ef4 JH |
1708 | |
1709 | d = uvchr_to_utf8(tmpbuf, UNI_TO_NATIVE(uv)); | |
1710 | sv_setpvn(res, (char *)tmpbuf, d - tmpbuf); | |
1711 | str = SvPV(res, len); | |
1712 | } | |
1713 | } | |
1714 | #endif | |
89491803 | 1715 | if (!has_utf8 && SvUTF8(res)) { |
5e7e76a3 | 1716 | const char *ostart = SvPVX_const(sv); |
f08d6ad9 GS |
1717 | SvCUR_set(sv, d - ostart); |
1718 | SvPOK_on(sv); | |
e4f3eed8 | 1719 | *d = '\0'; |
f08d6ad9 | 1720 | sv_utf8_upgrade(sv); |
d2f449dd | 1721 | /* this just broke our allocation above... */ |
eb160463 | 1722 | SvGROW(sv, (STRLEN)(send - start)); |
f08d6ad9 | 1723 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 1724 | has_utf8 = TRUE; |
f08d6ad9 | 1725 | } |
eb160463 | 1726 | if (len > (STRLEN)(e - s + 4)) { /* I _guess_ 4 is \N{} --jhi */ |
5e7e76a3 | 1727 | const char *odest = SvPVX_const(sv); |
423cee85 | 1728 | |
8973db79 | 1729 | SvGROW(sv, (SvLEN(sv) + len - (e - s + 4))); |
423cee85 JH |
1730 | d = SvPVX(sv) + (d - odest); |
1731 | } | |
1732 | Copy(str, d, len, char); | |
1733 | d += len; | |
1734 | SvREFCNT_dec(res); | |
1735 | cont_scan: | |
1736 | s = e + 1; | |
1737 | } | |
1738 | else | |
5777a3f7 | 1739 | yyerror("Missing braces on \\N{}"); |
423cee85 JH |
1740 | continue; |
1741 | ||
02aa26ce | 1742 | /* \c is a control character */ |
79072805 LW |
1743 | case 'c': |
1744 | s++; | |
7223e9d8 | 1745 | if (s < send) { |
ba210ebe | 1746 | U8 c = *s++; |
c7f1f016 NIS |
1747 | #ifdef EBCDIC |
1748 | if (isLOWER(c)) | |
1749 | c = toUPPER(c); | |
1750 | #endif | |
db42d148 | 1751 | *d++ = NATIVE_TO_NEED(has_utf8,toCTRL(c)); |
ba210ebe | 1752 | } |
7223e9d8 JH |
1753 | else { |
1754 | yyerror("Missing control char name in \\c"); | |
1755 | } | |
79072805 | 1756 | continue; |
02aa26ce NT |
1757 | |
1758 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 | 1759 | case 'b': |
db42d148 | 1760 | *d++ = NATIVE_TO_NEED(has_utf8,'\b'); |
79072805 LW |
1761 | break; |
1762 | case 'n': | |
db42d148 | 1763 | *d++ = NATIVE_TO_NEED(has_utf8,'\n'); |
79072805 LW |
1764 | break; |
1765 | case 'r': | |
db42d148 | 1766 | *d++ = NATIVE_TO_NEED(has_utf8,'\r'); |
79072805 LW |
1767 | break; |
1768 | case 'f': | |
db42d148 | 1769 | *d++ = NATIVE_TO_NEED(has_utf8,'\f'); |
79072805 LW |
1770 | break; |
1771 | case 't': | |
db42d148 | 1772 | *d++ = NATIVE_TO_NEED(has_utf8,'\t'); |
79072805 | 1773 | break; |
34a3fe2a | 1774 | case 'e': |
db42d148 | 1775 | *d++ = ASCII_TO_NEED(has_utf8,'\033'); |
34a3fe2a PP |
1776 | break; |
1777 | case 'a': | |
db42d148 | 1778 | *d++ = ASCII_TO_NEED(has_utf8,'\007'); |
79072805 | 1779 | break; |
02aa26ce NT |
1780 | } /* end switch */ |
1781 | ||
79072805 LW |
1782 | s++; |
1783 | continue; | |
02aa26ce NT |
1784 | } /* end if (backslash) */ |
1785 | ||
f9a63242 | 1786 | default_action: |
2b9d42f0 NIS |
1787 | /* If we started with encoded form, or already know we want it |
1788 | and then encode the next character */ | |
1789 | if ((has_utf8 || this_utf8) && !NATIVE_IS_INVARIANT((U8)(*s))) { | |
1790 | STRLEN len = 1; | |
1791 | UV uv = (this_utf8) ? utf8n_to_uvchr((U8*)s, send - s, &len, 0) : (UV) ((U8) *s); | |
1792 | STRLEN need = UNISKIP(NATIVE_TO_UNI(uv)); | |
1793 | s += len; | |
1794 | if (need > len) { | |
1795 | /* encoded value larger than old, need extra space (NOTE: SvCUR() not set here) */ | |
5e7e76a3 | 1796 | STRLEN off = d - SvPVX_const(sv); |
2b9d42f0 NIS |
1797 | d = SvGROW(sv, SvLEN(sv) + (need-len)) + off; |
1798 | } | |
1799 | d = (char*)uvchr_to_utf8((U8*)d, uv); | |
1800 | has_utf8 = TRUE; | |
1801 | } | |
1802 | else { | |
1803 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
1804 | } | |
02aa26ce NT |
1805 | } /* while loop to process each character */ |
1806 | ||
1807 | /* terminate the string and set up the sv */ | |
79072805 | 1808 | *d = '\0'; |
5e7e76a3 | 1809 | SvCUR_set(sv, d - SvPVX_const(sv)); |
2b9d42f0 | 1810 | if (SvCUR(sv) >= SvLEN(sv)) |
5b7ea690 | 1811 | Perl_croak(aTHX_ "panic: constant overflowed allocated space"); |
2b9d42f0 | 1812 | |
79072805 | 1813 | SvPOK_on(sv); |
9f4817db | 1814 | if (PL_encoding && !has_utf8) { |
5b7ea690 JH |
1815 | sv_recode_to_utf8(sv, PL_encoding); |
1816 | if (SvUTF8(sv)) | |
1817 | has_utf8 = TRUE; | |
9f4817db | 1818 | } |
2b9d42f0 | 1819 | if (has_utf8) { |
7e2040f0 | 1820 | SvUTF8_on(sv); |
2b9d42f0 | 1821 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
5b7ea690 | 1822 | PL_sublex_info.sub_op->op_private |= |
2b9d42f0 NIS |
1823 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); |
1824 | } | |
1825 | } | |
79072805 | 1826 | |
02aa26ce | 1827 | /* shrink the sv if we allocated more than we used */ |
79072805 | 1828 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
ea5389ca | 1829 | SvPV_shrink_to_cur(sv); |
79072805 | 1830 | } |
02aa26ce | 1831 | |
9b599b2a | 1832 | /* return the substring (via yylval) only if we parsed anything */ |
3280af22 NIS |
1833 | if (s > PL_bufptr) { |
1834 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) | |
4e553d73 | 1835 | sv = new_constant(start, s - start, (PL_lex_inpat ? "qr" : "q"), |
b3ac6de7 | 1836 | sv, Nullsv, |
4e553d73 | 1837 | ( PL_lex_inwhat == OP_TRANS |
b3ac6de7 | 1838 | ? "tr" |
3280af22 | 1839 | : ( (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) |
b3ac6de7 IZ |
1840 | ? "s" |
1841 | : "qq"))); | |
79072805 | 1842 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 1843 | } else |
8990e307 | 1844 | SvREFCNT_dec(sv); |
79072805 LW |
1845 | return s; |
1846 | } | |
1847 | ||
ffb4593c NT |
1848 | /* S_intuit_more |
1849 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
1850 | * FALSE otherwise. | |
ffb4593c NT |
1851 | * |
1852 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
1853 | * | |
1854 | * ->[ and ->{ return TRUE | |
1855 | * { and [ outside a pattern are always subscripts, so return TRUE | |
1856 | * if we're outside a pattern and it's not { or [, then return FALSE | |
1857 | * if we're in a pattern and the first char is a { | |
1858 | * {4,5} (any digits around the comma) returns FALSE | |
1859 | * if we're in a pattern and the first char is a [ | |
1860 | * [] returns FALSE | |
1861 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
1862 | * character class or not. It has to deal with things like | |
1863 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
1864 | * anything else returns TRUE | |
1865 | */ | |
1866 | ||
9cbb5ea2 GS |
1867 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
1868 | ||
76e3520e | 1869 | STATIC int |
cea2e8a9 | 1870 | S_intuit_more(pTHX_ register char *s) |
79072805 | 1871 | { |
3280af22 | 1872 | if (PL_lex_brackets) |
79072805 LW |
1873 | return TRUE; |
1874 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
1875 | return TRUE; | |
1876 | if (*s != '{' && *s != '[') | |
1877 | return FALSE; | |
3280af22 | 1878 | if (!PL_lex_inpat) |
79072805 LW |
1879 | return TRUE; |
1880 | ||
1881 | /* In a pattern, so maybe we have {n,m}. */ | |
1882 | if (*s == '{') { | |
1883 | s++; | |
1884 | if (!isDIGIT(*s)) | |
1885 | return TRUE; | |
1886 | while (isDIGIT(*s)) | |
1887 | s++; | |
1888 | if (*s == ',') | |
1889 | s++; | |
1890 | while (isDIGIT(*s)) | |
1891 | s++; | |
1892 | if (*s == '}') | |
1893 | return FALSE; | |
1894 | return TRUE; | |
1895 | ||
1896 | } | |
1897 | ||
1898 | /* On the other hand, maybe we have a character class */ | |
1899 | ||
1900 | s++; | |
1901 | if (*s == ']' || *s == '^') | |
1902 | return FALSE; | |
1903 | else { | |
ffb4593c | 1904 | /* this is terrifying, and it works */ |
79072805 LW |
1905 | int weight = 2; /* let's weigh the evidence */ |
1906 | char seen[256]; | |
f27ffc4a | 1907 | unsigned char un_char = 255, last_un_char; |
24c2fff4 | 1908 | const char *send = strchr(s,']'); |
3280af22 | 1909 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
1910 | |
1911 | if (!send) /* has to be an expression */ | |
1912 | return TRUE; | |
1913 | ||
1914 | Zero(seen,256,char); | |
1915 | if (*s == '$') | |
1916 | weight -= 3; | |
1917 | else if (isDIGIT(*s)) { | |
1918 | if (s[1] != ']') { | |
1919 | if (isDIGIT(s[1]) && s[2] == ']') | |
1920 | weight -= 10; | |
1921 | } | |
1922 | else | |
1923 | weight -= 100; | |
1924 | } | |
1925 | for (; s < send; s++) { | |
1926 | last_un_char = un_char; | |
1927 | un_char = (unsigned char)*s; | |
1928 | switch (*s) { | |
1929 | case '@': | |
1930 | case '&': | |
1931 | case '$': | |
1932 | weight -= seen[un_char] * 10; | |
7e2040f0 | 1933 | if (isALNUM_lazy_if(s+1,UTF)) { |
8903cb82 | 1934 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
a0d0e21e | 1935 | if ((int)strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE, SVt_PV)) |
79072805 LW |
1936 | weight -= 100; |
1937 | else | |
1938 | weight -= 10; | |
1939 | } | |
1940 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
1941 | strchr("[#!%*<>()-=",s[1])) { |
1942 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
1943 | weight -= 10; |
1944 | else | |
1945 | weight -= 1; | |
1946 | } | |
1947 | break; | |
1948 | case '\\': | |
1949 | un_char = 254; | |
1950 | if (s[1]) { | |
93a17b20 | 1951 | if (strchr("wds]",s[1])) |
79072805 LW |
1952 | weight += 100; |
1953 | else if (seen['\''] || seen['"']) | |
1954 | weight += 1; | |
93a17b20 | 1955 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
1956 | weight += 40; |
1957 | else if (isDIGIT(s[1])) { | |
1958 | weight += 40; | |
1959 | while (s[1] && isDIGIT(s[1])) | |
1960 | s++; | |
1961 | } | |
1962 | } | |
1963 | else | |
1964 | weight += 100; | |
1965 | break; | |
1966 | case '-': | |
1967 | if (s[1] == '\\') | |
1968 | weight += 50; | |
93a17b20 | 1969 | if (strchr("aA01! ",last_un_char)) |
79072805 | 1970 | weight += 30; |
93a17b20 | 1971 | if (strchr("zZ79~",s[1])) |
79072805 | 1972 | weight += 30; |
f27ffc4a GS |
1973 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
1974 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
1975 | break; |
1976 | default: | |
3c71ae1e NC |
1977 | if (!isALNUM(last_un_char) |
1978 | && !(last_un_char == '$' || last_un_char == '@' | |
1979 | || last_un_char == '&') | |
1980 | && isALPHA(*s) && s[1] && isALPHA(s[1])) { | |
79072805 LW |
1981 | char *d = tmpbuf; |
1982 | while (isALPHA(*s)) | |
1983 | *d++ = *s++; | |
1984 | *d = '\0'; | |
1985 | if (keyword(tmpbuf, d - tmpbuf)) | |
1986 | weight -= 150; | |
1987 | } | |
1988 | if (un_char == last_un_char + 1) | |
1989 | weight += 5; | |
1990 | weight -= seen[un_char]; | |
1991 | break; | |
1992 | } | |
1993 | seen[un_char]++; | |
1994 | } | |
1995 | if (weight >= 0) /* probably a character class */ | |
1996 | return FALSE; | |
1997 | } | |
1998 | ||
1999 | return TRUE; | |
2000 | } | |
ffed7fef | 2001 | |
ffb4593c NT |
2002 | /* |
2003 | * S_intuit_method | |
2004 | * | |
2005 | * Does all the checking to disambiguate | |
2006 | * foo bar | |
2007 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
2008 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
2009 | * | |
2010 | * First argument is the stuff after the first token, e.g. "bar". | |
2011 | * | |
2012 | * Not a method if bar is a filehandle. | |
2013 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
2014 | * Not a method if it's really "Foo $bar" | |
2015 | * Method if it's "foo $bar" | |
2016 | * Not a method if it's really "print foo $bar" | |
2017 | * Method if it's really "foo package::" (interpreted as package->foo) | |
8f8cf39c | 2018 | * Not a method if bar is known to be a subroutine ("sub bar; foo bar") |
3cb0bbe5 | 2019 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
2020 | * => |
2021 | */ | |
2022 | ||
76e3520e | 2023 | STATIC int |
cea2e8a9 | 2024 | S_intuit_method(pTHX_ char *start, GV *gv) |
a0d0e21e LW |
2025 | { |
2026 | char *s = start + (*start == '$'); | |
3280af22 | 2027 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
2028 | STRLEN len; |
2029 | GV* indirgv; | |
2030 | ||
2031 | if (gv) { | |
b6c543e3 | 2032 | CV *cv; |
a0d0e21e LW |
2033 | if (GvIO(gv)) |
2034 | return 0; | |
b6c543e3 | 2035 | if ((cv = GvCVu(gv))) { |
5e7e76a3 | 2036 | const char *proto = SvPVX_const(cv); |
b6c543e3 IZ |
2037 | if (proto) { |
2038 | if (*proto == ';') | |
2039 | proto++; | |
2040 | if (*proto == '*') | |
2041 | return 0; | |
2042 | } | |
2043 | } else | |
a0d0e21e LW |
2044 | gv = 0; |
2045 | } | |
8903cb82 | 2046 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
2047 | /* start is the beginning of the possible filehandle/object, |
2048 | * and s is the end of it | |
2049 | * tmpbuf is a copy of it | |
2050 | */ | |
2051 | ||
a0d0e21e | 2052 | if (*start == '$') { |
3280af22 | 2053 | if (gv || PL_last_lop_op == OP_PRINT || isUPPER(*PL_tokenbuf)) |
a0d0e21e LW |
2054 | return 0; |
2055 | s = skipspace(s); | |
3280af22 NIS |
2056 | PL_bufptr = start; |
2057 | PL_expect = XREF; | |
a0d0e21e LW |
2058 | return *s == '(' ? FUNCMETH : METHOD; |
2059 | } | |
2060 | if (!keyword(tmpbuf, len)) { | |
c3e0f903 GS |
2061 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
2062 | len -= 2; | |
2063 | tmpbuf[len] = '\0'; | |
2064 | goto bare_package; | |
2065 | } | |
2066 | indirgv = gv_fetchpv(tmpbuf, FALSE, SVt_PVCV); | |
8ebc5c01 | 2067 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
2068 | return 0; |
2069 | /* filehandle or package name makes it a method */ | |
89bfa8cd | 2070 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) { |
a0d0e21e | 2071 | s = skipspace(s); |
3280af22 | 2072 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 2073 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 2074 | bare_package: |
3280af22 | 2075 | PL_nextval[PL_nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, |
79cb57f6 | 2076 | newSVpvn(tmpbuf,len)); |
3280af22 NIS |
2077 | PL_nextval[PL_nexttoke].opval->op_private = OPpCONST_BARE; |
2078 | PL_expect = XTERM; | |
a0d0e21e | 2079 | force_next(WORD); |
3280af22 | 2080 | PL_bufptr = s; |
a0d0e21e LW |
2081 | return *s == '(' ? FUNCMETH : METHOD; |
2082 | } | |
2083 | } | |
2084 | return 0; | |
2085 | } | |
2086 | ||
ffb4593c NT |
2087 | /* |
2088 | * S_incl_perldb | |
2089 | * Return a string of Perl code to load the debugger. If PERL5DB | |
2090 | * is set, it will return the contents of that, otherwise a | |
2091 | * compile-time require of perl5db.pl. | |
2092 | */ | |
2093 | ||
a00f3e00 | 2094 | STATIC const char* |
cea2e8a9 | 2095 | S_incl_perldb(pTHX) |
a0d0e21e | 2096 | { |
3280af22 | 2097 | if (PL_perldb) { |
a00f3e00 | 2098 | const char *pdb = PerlEnv_getenv("PERL5DB"); |
a0d0e21e LW |
2099 | |
2100 | if (pdb) | |
2101 | return pdb; | |
5b7ea690 | 2102 | SETERRNO(0,SS_NORMAL); |
a0d0e21e LW |
2103 | return "BEGIN { require 'perl5db.pl' }"; |
2104 | } | |
2105 | return ""; | |
2106 | } | |
2107 | ||
2108 | ||
16d20bd9 | 2109 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 2110 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
2111 | * Note that the filter function only applies to the current source file |
2112 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
2113 | * | |
2114 | * The datasv parameter (which may be NULL) can be used to pass | |
2115 | * private data to this instance of the filter. The filter function | |
2116 | * can recover the SV using the FILTER_DATA macro and use it to | |
2117 | * store private buffers and state information. | |
2118 | * | |
2119 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 2120 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 2121 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
2122 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
2123 | * private use must be set using malloc'd pointers. | |
2124 | */ | |
16d20bd9 AD |
2125 | |
2126 | SV * | |
864dbfa3 | 2127 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 2128 | { |
cf011bf2 NC |
2129 | xpvio_filter_u u; |
2130 | ||
f4c556ac GS |
2131 | if (!funcp) |
2132 | return Nullsv; | |
2133 | ||
3280af22 NIS |
2134 | if (!PL_rsfp_filters) |
2135 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 2136 | if (!datasv) |
8c52afec | 2137 | datasv = NEWSV(255,0); |
d2e2df35 | 2138 | (void)SvUPGRADE(datasv, SVt_PVIO); |
cf011bf2 NC |
2139 | u.filter = funcp; |
2140 | IoANY(datasv) = u.iop; /* stash funcp into spare field */ | |
e0c19803 | 2141 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac | 2142 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
fe5a182c | 2143 | (void*)funcp, SvPV_nolen(datasv))); |
3280af22 NIS |
2144 | av_unshift(PL_rsfp_filters, 1); |
2145 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
2146 | return(datasv); |
2147 | } | |
4e553d73 | 2148 | |
16d20bd9 AD |
2149 | |
2150 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 2151 | void |
864dbfa3 | 2152 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 2153 | { |
e0c19803 | 2154 | SV *datasv; |
cf011bf2 NC |
2155 | xpvio_filter_u u; |
2156 | ||
fe5a182c | 2157 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", (void*)funcp)); |
3280af22 | 2158 | if (!PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
2159 | return; |
2160 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 2161 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
cf011bf2 NC |
2162 | u.iop = IoANY(datasv); |
2163 | if (u.filter == funcp) { | |
e0c19803 | 2164 | IoFLAGS(datasv) &= ~IOf_FAKE_DIRP; |
4755096e | 2165 | IoANY(datasv) = (void *)NULL; |
3280af22 | 2166 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 2167 | |
16d20bd9 AD |
2168 | return; |
2169 | } | |
2170 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 2171 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
2172 | } |
2173 | ||
2174 | ||
6dc97886 NC |
2175 | /* Invoke the idxth filter function for the current rsfp. */ |
2176 | /* maxlen 0 = read one text line */ | |
16d20bd9 | 2177 | I32 |
864dbfa3 | 2178 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
a0d0e21e | 2179 | { |
16d20bd9 AD |
2180 | filter_t funcp; |
2181 | SV *datasv = NULL; | |
cf011bf2 | 2182 | xpvio_filter_u u; |
e50aee73 | 2183 | |
3280af22 | 2184 | if (!PL_rsfp_filters) |
16d20bd9 | 2185 | return -1; |
6dc97886 | 2186 | if (idx > AvFILLp(PL_rsfp_filters)) { /* Any more filters? */ |
16d20bd9 AD |
2187 | /* Provide a default input filter to make life easy. */ |
2188 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
2189 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2190 | "filter_read %d: from rsfp\n", idx)); | |
4e553d73 | 2191 | if (maxlen) { |
16d20bd9 AD |
2192 | /* Want a block */ |
2193 | int len ; | |
24c2fff4 | 2194 | const int old_len = SvCUR(buf_sv); |
16d20bd9 AD |
2195 | |
2196 | /* ensure buf_sv is large enough */ | |
eb160463 | 2197 | SvGROW(buf_sv, (STRLEN)(old_len + maxlen)) ; |
3280af22 NIS |
2198 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, maxlen)) <= 0){ |
2199 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
2200 | return -1; /* error */ |
2201 | else | |
2202 | return 0 ; /* end of file */ | |
2203 | } | |
16d20bd9 AD |
2204 | SvCUR_set(buf_sv, old_len + len) ; |
2205 | } else { | |
2206 | /* Want a line */ | |
3280af22 NIS |
2207 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
2208 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
2209 | return -1; /* error */ |
2210 | else | |
2211 | return 0 ; /* end of file */ | |
2212 | } | |
16d20bd9 AD |
2213 | } |
2214 | return SvCUR(buf_sv); | |
2215 | } | |
2216 | /* Skip this filter slot if filter has been deleted */ | |
6dc97886 | 2217 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef) { |
f4c556ac GS |
2218 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2219 | "filter_read %d: skipped (filter deleted)\n", | |
2220 | idx)); | |
16d20bd9 AD |
2221 | return FILTER_READ(idx+1, buf_sv, maxlen); /* recurse */ |
2222 | } | |
2223 | /* Get function pointer hidden within datasv */ | |
cf011bf2 NC |
2224 | u.iop = IoANY(datasv); |
2225 | funcp = u.filter; | |
f4c556ac GS |
2226 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2227 | "filter_read %d: via function %p (%s)\n", | |
fe5a182c | 2228 | idx, (void*)funcp, SvPV_nolen(datasv))); |
16d20bd9 AD |
2229 | /* Call function. The function is expected to */ |
2230 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 2231 | /* Return: <0:error, =0:eof, >0:not eof */ |
acfe0abc | 2232 | return (*funcp)(aTHX_ idx, buf_sv, maxlen); |
16d20bd9 AD |
2233 | } |
2234 | ||
76e3520e | 2235 | STATIC char * |
cea2e8a9 | 2236 | S_filter_gets(pTHX_ register SV *sv, register PerlIO *fp, STRLEN append) |
16d20bd9 | 2237 | { |
c39cd008 | 2238 | #ifdef PERL_CR_FILTER |
3280af22 | 2239 | if (!PL_rsfp_filters) { |
c39cd008 | 2240 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
2241 | } |
2242 | #endif | |
3280af22 | 2243 | if (PL_rsfp_filters) { |
55497cff | 2244 | if (!append) |
2245 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
2246 | if (FILTER_READ(0, sv, 0) > 0) |
2247 | return ( SvPVX(sv) ) ; | |
2248 | else | |
2249 | return Nullch ; | |
2250 | } | |
9d116dd7 | 2251 | else |
fd049845 | 2252 | return (sv_gets(sv, fp, append)); |
a0d0e21e LW |
2253 | } |
2254 | ||
01ec43d0 | 2255 | STATIC HV * |
1f49be52 | 2256 | S_find_in_my_stash(pTHX_ const char *pkgname, I32 len) |
def3634b GS |
2257 | { |
2258 | GV *gv; | |
2259 | ||
01ec43d0 | 2260 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
2261 | return PL_curstash; |
2262 | ||
2263 | if (len > 2 && | |
2264 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
01ec43d0 GS |
2265 | (gv = gv_fetchpv(pkgname, FALSE, SVt_PVHV))) |
2266 | { | |
2267 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
2268 | } |
2269 | ||
2270 | /* use constant CLASS => 'MyClass' */ | |
2271 | if ((gv = gv_fetchpv(pkgname, FALSE, SVt_PVCV))) { | |
2272 | SV *sv; | |
2273 | if (GvCV(gv) && (sv = cv_const_sv(GvCV(gv)))) { | |
2274 | pkgname = SvPV_nolen(sv); | |
2275 | } | |
2276 | } | |
2277 | ||
2278 | return gv_stashpv(pkgname, FALSE); | |
2279 | } | |
a0d0e21e | 2280 | |
748a9306 | 2281 | #ifdef DEBUGGING |
a00f3e00 | 2282 | static char const* exp_name[] = |
09bef843 SB |
2283 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
2284 | "ATTRTERM", "TERMBLOCK" | |
2285 | }; | |
748a9306 | 2286 | #endif |
463ee0b2 | 2287 | |
02aa26ce NT |
2288 | /* |
2289 | yylex | |
2290 | ||
2291 | Works out what to call the token just pulled out of the input | |
2292 | stream. The yacc parser takes care of taking the ops we return and | |
2293 | stitching them into a tree. | |
2294 | ||
2295 | Returns: | |
2296 | PRIVATEREF | |
2297 | ||
2298 | Structure: | |
2299 | if read an identifier | |
2300 | if we're in a my declaration | |
2301 | croak if they tried to say my($foo::bar) | |
2302 | build the ops for a my() declaration | |
2303 | if it's an access to a my() variable | |
2304 | are we in a sort block? | |
2305 | croak if my($a); $a <=> $b | |
2306 | build ops for access to a my() variable | |
2307 | if in a dq string, and they've said @foo and we can't find @foo | |
2308 | croak | |
2309 | build ops for a bareword | |
2310 | if we already built the token before, use it. | |
2311 | */ | |
2312 | ||
dba4d153 | 2313 | #ifdef USE_PURE_BISON |
864dbfa3 | 2314 | int |
dba4d153 | 2315 | Perl_yylex_r(pTHX_ YYSTYPE *lvalp, int *lcharp) |
378cc40b | 2316 | { |
20141f0e IRC |
2317 | int r; |
2318 | ||
6f202aea | 2319 | yyactlevel++; |
20141f0e IRC |
2320 | yylval_pointer[yyactlevel] = lvalp; |
2321 | yychar_pointer[yyactlevel] = lcharp; | |
b73d6f50 IRC |
2322 | if (yyactlevel >= YYMAXLEVEL) |
2323 | Perl_croak(aTHX_ "panic: YYMAXLEVEL"); | |
20141f0e | 2324 | |
dba4d153 | 2325 | r = Perl_yylex(aTHX); |
20141f0e | 2326 | |
d8ae6756 IRC |
2327 | if (yyactlevel > 0) |
2328 | yyactlevel--; | |
20141f0e IRC |
2329 | |
2330 | return r; | |
2331 | } | |
dba4d153 | 2332 | #endif |
20141f0e | 2333 | |
dba4d153 JH |
2334 | #ifdef __SC__ |
2335 | #pragma segment Perl_yylex | |
2336 | #endif | |
dba4d153 | 2337 | int |
dba4d153 | 2338 | Perl_yylex(pTHX) |
20141f0e | 2339 | { |
c870331e | 2340 | register char *s = PL_bufptr; |
378cc40b | 2341 | register char *d; |
79072805 | 2342 | register I32 tmp; |
463ee0b2 | 2343 | STRLEN len; |
161b471a NIS |
2344 | GV *gv = Nullgv; |
2345 | GV **gvp = 0; | |
aa7440fb | 2346 | bool bof = FALSE; |
bda19f49 | 2347 | I32 orig_keyword = 0; |
a687059c | 2348 | |
f31bfe61 NC |
2349 | DEBUG_T( { |
2350 | PerlIO_printf(Perl_debug_log, "### LEX_%s\n", | |
2351 | lex_state_names[PL_lex_state]); | |
2352 | } ); | |
02aa26ce | 2353 | /* check if there's an identifier for us to look at */ |
ba979b31 | 2354 | if (PL_pending_ident) |
f31bfe61 | 2355 | return REPORT(S_pending_ident(aTHX)); |
bbce6d69 | 2356 | |
02aa26ce NT |
2357 | /* no identifier pending identification */ |
2358 | ||
3280af22 | 2359 | switch (PL_lex_state) { |
79072805 LW |
2360 | #ifdef COMMENTARY |
2361 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
2362 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
2363 | break; | |
2364 | #endif | |
2365 | ||
09bef843 | 2366 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 2367 | case LEX_KNOWNEXT: |
3280af22 NIS |
2368 | PL_nexttoke--; |
2369 | yylval = PL_nextval[PL_nexttoke]; | |
2370 | if (!PL_nexttoke) { | |
2371 | PL_lex_state = PL_lex_defer; | |
2372 | PL_expect = PL_lex_expect; | |
2373 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 2374 | } |
607df283 | 2375 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
4659c93f | 2376 | "### Next token after '%s' was known, type %"IVdf"\n", PL_bufptr, |
5f80b19c | 2377 | (IV)PL_nexttype[PL_nexttoke]); }); |
607df283 | 2378 | |
f31bfe61 | 2379 | return REPORT(PL_nexttype[PL_nexttoke]); |
79072805 | 2380 | |
02aa26ce | 2381 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 2382 | when we get here, PL_bufptr is at the \ |
02aa26ce | 2383 | */ |
79072805 LW |
2384 | case LEX_INTERPCASEMOD: |
2385 | #ifdef DEBUGGING | |
3280af22 | 2386 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 2387 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 2388 | #endif |
02aa26ce | 2389 | /* handle \E or end of string */ |
3280af22 | 2390 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
02aa26ce | 2391 | /* if at a \E */ |
3280af22 | 2392 | if (PL_lex_casemods) { |
24c2fff4 | 2393 | const char oldmod = PL_lex_casestack[--PL_lex_casemods]; |
3280af22 | 2394 | PL_lex_casestack[PL_lex_casemods] = '\0'; |
02aa26ce | 2395 | |
3c71ae1e NC |
2396 | if (PL_bufptr != PL_bufend |
2397 | && (oldmod == 'L' || oldmod == 'U' || oldmod == 'Q')) { | |
3280af22 NIS |
2398 | PL_bufptr += 2; |
2399 | PL_lex_state = LEX_INTERPCONCAT; | |
a0d0e21e | 2400 | } |
f31bfe61 | 2401 | return REPORT(')'); |
79072805 | 2402 | } |
3280af22 NIS |
2403 | if (PL_bufptr != PL_bufend) |
2404 | PL_bufptr += 2; | |
2405 | PL_lex_state = LEX_INTERPCONCAT; | |
cea2e8a9 | 2406 | return yylex(); |
79072805 LW |
2407 | } |
2408 | else { | |
607df283 | 2409 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
5f80b19c | 2410 | "### Saw case modifier at '%s'\n", PL_bufptr); }); |
3280af22 | 2411 | s = PL_bufptr + 1; |
2ea5368e JH |
2412 | if (s[1] == '\\' && s[2] == 'E') { |
2413 | PL_bufptr = s + 3; | |
2414 | PL_lex_state = LEX_INTERPCONCAT; | |
2415 | return yylex(); | |
a0d0e21e | 2416 | } |
2ea5368e JH |
2417 | else { |
2418 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
2419 | tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */ | |
3c71ae1e | 2420 | if ((*s == 'L' || *s == 'U') && |
2ea5368e JH |
2421 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) { |
2422 | PL_lex_casestack[--PL_lex_casemods] = '\0'; | |
f31bfe61 | 2423 | return REPORT(')'); |
2ea5368e JH |
2424 | } |
2425 | if (PL_lex_casemods > 10) | |
2426 | Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
2427 | PL_lex_casestack[PL_lex_casemods++] = *s; | |
2428 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
2429 | PL_lex_state = LEX_INTERPCONCAT; | |
2430 | PL_nextval[PL_nexttoke].ival = 0; | |
2431 | force_next('('); | |
2432 | if (*s == 'l') | |
2433 | PL_nextval[PL_nexttoke].ival = OP_LCFIRST; | |
2434 | else if (*s == 'u') | |
2435 | PL_nextval[PL_nexttoke].ival = OP_UCFIRST; | |
2436 | else if (*s == 'L') | |
2437 | PL_nextval[PL_nexttoke].ival = OP_LC; | |
2438 | else if (*s == 'U') | |
2439 | PL_nextval[PL_nexttoke].ival = OP_UC; | |
2440 | else if (*s == 'Q') | |
2441 | PL_nextval[PL_nexttoke].ival = OP_QUOTEMETA; | |
2442 | else | |
2443 | Perl_croak(aTHX_ "panic: yylex"); | |
2444 | PL_bufptr = s + 1; | |
a0d0e21e | 2445 | } |
79072805 | 2446 | force_next(FUNC); |
3280af22 NIS |
2447 | if (PL_lex_starts) { |
2448 | s = PL_bufptr; | |
2449 | PL_lex_starts = 0; | |
79072805 LW |
2450 | Aop(OP_CONCAT); |
2451 | } | |
2452 | else | |
cea2e8a9 | 2453 | return yylex(); |
79072805 LW |
2454 | } |
2455 | ||
55497cff | 2456 | case LEX_INTERPPUSH: |
f31bfe61 | 2457 | return REPORT(sublex_push()); |
55497cff | 2458 | |
79072805 | 2459 | case LEX_INTERPSTART: |
3280af22 | 2460 | if (PL_bufptr == PL_bufend) |
f31bfe61 | 2461 | return REPORT(sublex_done()); |
607df283 | 2462 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
5f80b19c | 2463 | "### Interpolated variable at '%s'\n", PL_bufptr); }); |
3280af22 NIS |
2464 | PL_expect = XTERM; |
2465 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
2466 | PL_lex_state = LEX_INTERPNORMAL; | |
2467 | if (PL_lex_dojoin) { | |
2468 | PL_nextval[PL_nexttoke].ival = 0; | |
79072805 | 2469 | force_next(','); |
4d1ff10f | 2470 | #ifdef USE_5005THREADS |
533c011a NIS |
2471 | PL_nextval[PL_nexttoke].opval = newOP(OP_THREADSV, 0); |
2472 | PL_nextval[PL_nexttoke].opval->op_targ = find_threadsv("\""); | |
554b3eca MB |
2473 | force_next(PRIVATEREF); |
2474 | #else | |
a0d0e21e | 2475 | force_ident("\"", '$'); |
4d1ff10f | 2476 | #endif /* USE_5005THREADS */ |
3280af22 | 2477 | PL_nextval[PL_nexttoke].ival = 0; |
79072805 | 2478 | force_next('$'); |
3280af22 | 2479 | PL_nextval[PL_nexttoke].ival = 0; |
79072805 | 2480 | force_next('('); |
3280af22 | 2481 | PL_nextval[PL_nexttoke].ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
2482 | force_next(FUNC); |
2483 | } | |
3280af22 NIS |
2484 | if (PL_lex_starts++) { |
2485 | s = PL_bufptr; | |
79072805 LW |
2486 | Aop(OP_CONCAT); |
2487 | } | |
cea2e8a9 | 2488 | return yylex(); |
79072805 LW |
2489 | |
2490 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
2491 | if (intuit_more(PL_bufptr)) { |
2492 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
2493 | break; |
2494 | } | |
2495 | /* FALL THROUGH */ | |
2496 | ||
2497 | case LEX_INTERPEND: | |
3280af22 NIS |
2498 | if (PL_lex_dojoin) { |
2499 | PL_lex_dojoin = FALSE; | |
2500 | PL_lex_state = LEX_INTERPCONCAT; | |
f31bfe61 | 2501 | return REPORT(')'); |
79072805 | 2502 | } |
43a16006 | 2503 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 2504 | && SvEVALED(PL_lex_repl)) |
43a16006 | 2505 | { |
e9fa98b2 | 2506 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 2507 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
e9fa98b2 HS |
2508 | PL_lex_repl = Nullsv; |
2509 | } | |
79072805 LW |
2510 | /* FALLTHROUGH */ |
2511 | case LEX_INTERPCONCAT: | |
2512 | #ifdef DEBUGGING | |
3280af22 | 2513 | if (PL_lex_brackets) |
cea2e8a9 | 2514 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 2515 | #endif |
3280af22 | 2516 | if (PL_bufptr == PL_bufend) |
f31bfe61 | 2517 | return REPORT(sublex_done()); |
79072805 | 2518 | |
3280af22 NIS |
2519 | if (SvIVX(PL_linestr) == '\'') { |
2520 | SV *sv = newSVsv(PL_linestr); | |
2521 | if (!PL_lex_inpat) | |
76e3520e | 2522 | sv = tokeq(sv); |
3280af22 | 2523 | else if ( PL_hints & HINT_NEW_RE ) |
b3ac6de7 | 2524 | sv = new_constant(NULL, 0, "qr", sv, sv, "q"); |
79072805 | 2525 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 2526 | s = PL_bufend; |
79072805 LW |
2527 | } |
2528 | else { | |
3280af22 | 2529 | s = scan_const(PL_bufptr); |
79072805 | 2530 | if (*s == '\\') |
3280af22 | 2531 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 2532 | else |
3280af22 | 2533 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
2534 | } |
2535 | ||
3280af22 NIS |
2536 | if (s != PL_bufptr) { |
2537 | PL_nextval[PL_nexttoke] = yylval; | |
2538 | PL_expect = XTERM; | |
79072805 | 2539 | force_next(THING); |
3280af22 | 2540 | if (PL_lex_starts++) |
79072805 LW |
2541 | Aop(OP_CONCAT); |
2542 | else { | |
3280af22 | 2543 | PL_bufptr = s; |
cea2e8a9 | 2544 | return yylex(); |
79072805 LW |
2545 | } |
2546 | } | |
2547 | ||
cea2e8a9 | 2548 | return yylex(); |
a0d0e21e | 2549 | case LEX_FORMLINE: |
3280af22 NIS |
2550 | PL_lex_state = LEX_NORMAL; |
2551 | s = scan_formline(PL_bufptr); | |
2552 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
2553 | goto rightbracket; |
2554 | OPERATOR(';'); | |
79072805 LW |
2555 | } |
2556 | ||
3280af22 NIS |
2557 | s = PL_bufptr; |
2558 | PL_oldoldbufptr = PL_oldbufptr; | |
2559 | PL_oldbufptr = s; | |
607df283 | 2560 | DEBUG_T( { |
f31bfe61 | 2561 | PerlIO_printf(Perl_debug_log, "### Tokener expecting %s at [%s]\n", |
bf49b057 | 2562 | exp_name[PL_expect], s); |
5f80b19c | 2563 | } ); |
463ee0b2 LW |
2564 | |
2565 | retry: | |
378cc40b LW |
2566 | switch (*s) { |
2567 | default: | |
7e2040f0 | 2568 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 2569 | goto keylookup; |
cea2e8a9 | 2570 | Perl_croak(aTHX_ "Unrecognized character \\x%02X", *s & 255); |
e929a76b LW |
2571 | case 4: |
2572 | case 26: | |
2573 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 2574 | case 0: |
3280af22 NIS |
2575 | if (!PL_rsfp) { |
2576 | PL_last_uni = 0; | |
2577 | PL_last_lop = 0; | |
9dea3e30 WL |
2578 | if (PL_lex_brackets) { |
2579 | if (PL_lex_formbrack) | |
2580 | yyerror("Format not terminated"); | |
2581 | else | |
2582 | yyerror("Missing right curly or square bracket"); | |
2583 | } | |
4e553d73 | 2584 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 2585 | "### Tokener got EOF\n"); |
5f80b19c | 2586 | } ); |
79072805 | 2587 | TOKEN(0); |
463ee0b2 | 2588 | } |
3280af22 | 2589 | if (s++ < PL_bufend) |
a687059c | 2590 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
2591 | PL_last_uni = 0; |
2592 | PL_last_lop = 0; | |
2593 | if (!PL_in_eval && !PL_preambled) { | |
2594 | PL_preambled = TRUE; | |
2595 | sv_setpv(PL_linestr,incl_perldb()); | |
2596 | if (SvCUR(PL_linestr)) | |
29652248 | 2597 | sv_catpvn(PL_linestr,";", 1); |
3280af22 NIS |
2598 | if (PL_preambleav){ |
2599 | while(AvFILLp(PL_preambleav) >= 0) { | |
2600 | SV *tmpsv = av_shift(PL_preambleav); | |
2601 | sv_catsv(PL_linestr, tmpsv); | |
29652248 | 2602 | sv_catpvn(PL_linestr, ";", 1); |
91b7def8 | 2603 | sv_free(tmpsv); |
2604 | } | |
3280af22 NIS |
2605 | sv_free((SV*)PL_preambleav); |
2606 | PL_preambleav = NULL; | |
91b7def8 | 2607 | } |
3280af22 NIS |
2608 | if (PL_minus_n || PL_minus_p) { |
2609 | sv_catpv(PL_linestr, "LINE: while (<>) {"); | |
2610 | if (PL_minus_l) | |
2611 | sv_catpv(PL_linestr,"chomp;"); | |
2612 | if (PL_minus_a) { | |
3280af22 | 2613 | if (PL_minus_F) { |
3c71ae1e NC |
2614 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
2615 | || *PL_splitstr == '"') | |
3280af22 | 2616 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 2617 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 2618 | else { |
6155262a NC |
2619 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
2620 | bytes can be used as quoting characters. :-) */ | |
2621 | /* The count here deliberately includes the NUL | |
2622 | that terminates the C string constant. This | |
2623 | embeds the opening NUL into the string. */ | |
0473add9 | 2624 | const char *splits = PL_splitstr; |
6155262a | 2625 | sv_catpvn(PL_linestr, "our @F=split(q", 15); |
6155262a NC |
2626 | do { |
2627 | /* Need to \ \s */ | |
0473add9 AL |
2628 | if (*splits == '\\') |
2629 | sv_catpvn(PL_linestr, splits, 1); | |
2630 | sv_catpvn(PL_linestr, splits, 1); | |
2631 | } while (*splits++); | |
6155262a NC |
2632 | /* This loop will embed the trailing NUL of |
2633 | PL_linestr as the last thing it does before | |
2634 | terminating. */ | |
2635 | sv_catpvn(PL_linestr, ");", 2); | |
54310121 | 2636 | } |
2304df62 AD |
2637 | } |
2638 | else | |
75c72d73 | 2639 | sv_catpv(PL_linestr,"our @F=split(' ');"); |
2304df62 | 2640 | } |
79072805 | 2641 | } |
29652248 | 2642 | sv_catpvn(PL_linestr, "\n", 1); |
3280af22 NIS |
2643 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
2644 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 2645 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 | 2646 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
a0d0e21e LW |
2647 | SV *sv = NEWSV(85,0); |
2648 | ||
2649 | sv_upgrade(sv, SVt_PVMG); | |
3280af22 | 2650 | sv_setsv(sv,PL_linestr); |
0ac0412a | 2651 | (void)SvIOK_on(sv); |
0da6cfda | 2652 | SvIV_set(sv, 0); |
57843af0 | 2653 | av_store(CopFILEAV(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
a0d0e21e | 2654 | } |
79072805 | 2655 | goto retry; |
a687059c | 2656 | } |
e929a76b | 2657 | do { |
aa7440fb | 2658 | bof = PL_rsfp ? TRUE : FALSE; |
7e28d3af JH |
2659 | if ((s = filter_gets(PL_linestr, PL_rsfp, 0)) == Nullch) { |
2660 | fake_eof: | |
2661 | if (PL_rsfp) { | |
2662 | if (PL_preprocess && !PL_in_eval) | |
2663 | (void)PerlProc_pclose(PL_rsfp); | |
2664 | else if ((PerlIO *)PL_rsfp == PerlIO_stdin()) | |
2665 | PerlIO_clearerr(PL_rsfp); | |
2666 | else | |
2667 | (void)PerlIO_close(PL_rsfp); | |
2668 | PL_rsfp = Nullfp; | |
2669 | PL_doextract = FALSE; | |
2670 | } | |
2671 | if (!PL_in_eval && (PL_minus_n || PL_minus_p)) { | |
29652248 NC |
2672 | sv_setpv(PL_linestr,PL_minus_p |
2673 | ? ";}continue{print;}" : ";}"); | |
7e28d3af JH |
2674 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
2675 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 2676 | PL_last_lop = PL_last_uni = Nullch; |
7e28d3af JH |
2677 | PL_minus_n = PL_minus_p = 0; |
2678 | goto retry; | |
2679 | } | |
2680 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
207e3d1a | 2681 | PL_last_lop = PL_last_uni = Nullch; |
2a8de9e2 | 2682 | sv_setpvn(PL_linestr,"",0); |
7e28d3af JH |
2683 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ |
2684 | } | |
92a78a40 JH |
2685 | /* If it looks like the start of a BOM or raw UTF-16, |
2686 | * check if it in fact is. */ | |
2687 | else if (bof && | |
2688 | (*s == 0 || | |
2689 | *(U8*)s == 0xEF || | |
2690 | *(U8*)s >= 0xFE || | |
2691 | s[1] == 0)) { | |
226017aa | 2692 | #ifdef PERLIO_IS_STDIO |
e3f494f1 JH |
2693 | # ifdef __GNU_LIBRARY__ |
2694 | # if __GNU_LIBRARY__ == 1 /* Linux glibc5 */ | |
226017aa DD |
2695 | # define FTELL_FOR_PIPE_IS_BROKEN |
2696 | # endif | |
e3f494f1 JH |
2697 | # else |
2698 | # ifdef __GLIBC__ | |
2699 | # if __GLIBC__ == 1 /* maybe some glibc5 release had it like this? */ | |
2700 | # define FTELL_FOR_PIPE_IS_BROKEN | |
2701 | # endif | |
2702 | # endif | |
226017aa DD |
2703 | # endif |
2704 | #endif | |
2705 | #ifdef FTELL_FOR_PIPE_IS_BROKEN | |
2706 | /* This loses the possibility to detect the bof | |
2707 | * situation on perl -P when the libc5 is being used. | |
2708 | * Workaround? Maybe attach some extra state to PL_rsfp? | |
2709 | */ | |
2710 | if (!PL_preprocess) | |
7e28d3af | 2711 | bof = PerlIO_tell(PL_rsfp) == SvCUR(PL_linestr); |
226017aa | 2712 | #else |
eb160463 | 2713 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
226017aa | 2714 | #endif |
7e28d3af | 2715 | if (bof) { |
3280af22 | 2716 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 2717 | s = swallow_bom((U8*)s); |
e929a76b | 2718 | } |
378cc40b | 2719 | } |
3280af22 | 2720 | if (PL_doextract) { |
a0d0e21e LW |
2721 | /* Incest with pod. */ |
2722 | if (*s == '=' && strnEQ(s, "=cut", 4)) { | |
2a8de9e2 | 2723 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
2724 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
2725 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 2726 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 | 2727 | PL_doextract = FALSE; |
a0d0e21e | 2728 | } |
4e553d73 | 2729 | } |
463ee0b2 | 2730 | incline(s); |
3280af22 NIS |
2731 | } while (PL_doextract); |
2732 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
2733 | if (PERLDB_LINE && PL_curstash != PL_debstash) { | |
79072805 | 2734 | SV *sv = NEWSV(85,0); |
a687059c | 2735 | |
93a17b20 | 2736 | sv_upgrade(sv, SVt_PVMG); |
3280af22 | 2737 | sv_setsv(sv,PL_linestr); |
0ac0412a | 2738 | (void)SvIOK_on(sv); |
0da6cfda | 2739 | SvIV_set(sv, 0); |
57843af0 | 2740 | av_store(CopFILEAV(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
a687059c | 2741 | } |
3280af22 | 2742 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
207e3d1a | 2743 | PL_last_lop = PL_last_uni = Nullch; |
57843af0 | 2744 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 2745 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 2746 | s++; |
a0d0e21e | 2747 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 2748 | s++; |
44a8e56a | 2749 | d = Nullch; |
3280af22 | 2750 | if (!PL_in_eval) { |
44a8e56a | 2751 | if (*s == '#' && *(s+1) == '!') |
2752 | d = s + 2; | |
2753 | #ifdef ALTERNATE_SHEBANG | |
2754 | else { | |
a00f3e00 | 2755 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 2756 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
2757 | d = s + (sizeof(as) - 1); | |
2758 | } | |
2759 | #endif /* ALTERNATE_SHEBANG */ | |
2760 | } | |
2761 | if (d) { | |
b8378b72 | 2762 | char *ipath; |
774d564b | 2763 | char *ipathend; |
b8378b72 | 2764 | |
774d564b | 2765 | while (isSPACE(*d)) |
b8378b72 CS |
2766 | d++; |
2767 | ipath = d; | |
774d564b | 2768 | while (*d && !isSPACE(*d)) |
2769 | d++; | |
2770 | ipathend = d; | |
2771 | ||
2772 | #ifdef ARG_ZERO_IS_SCRIPT | |
2773 | if (ipathend > ipath) { | |
2774 | /* | |
2775 | * HP-UX (at least) sets argv[0] to the script name, | |
2776 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
2777 | * at least, set argv[0] to the basename of the Perl | |
2778 | * interpreter. So, having found "#!", we'll set it right. | |
2779 | */ | |
ee2f7564 | 2780 | SV *x = GvSV(gv_fetchpv("\030", TRUE, SVt_PV)); /* $^X */ |
774d564b | 2781 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 2782 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 2783 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 2784 | SvSETMAGIC(x); |
2785 | } | |
556c1dec JH |
2786 | else { |
2787 | STRLEN blen; | |
2788 | STRLEN llen; | |
24c2fff4 NC |
2789 | const char *bstart = SvPV(CopFILESV(PL_curcop),blen); |
2790 | const char *lstart = SvPV(x,llen); | |
556c1dec JH |
2791 | if (llen < blen) { |
2792 | bstart += blen - llen; | |
2793 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
2794 | sv_setpvn(x, ipath, ipathend - ipath); | |
2795 | SvSETMAGIC(x); | |
2796 | } | |
2797 | } | |
2798 | } | |
774d564b | 2799 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 2800 | } |
774d564b | 2801 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
2802 | |
2803 | /* | |
2804 | * Look for options. | |
2805 | */ | |
748a9306 | 2806 | d = instr(s,"perl -"); |
84e30d1a | 2807 | if (!d) { |
748a9306 | 2808 | d = instr(s,"perl"); |
84e30d1a GS |
2809 | #if defined(DOSISH) |
2810 | /* avoid getting into infinite loops when shebang | |
2811 | * line contains "Perl" rather than "perl" */ | |
2812 | if (!d) { | |
2813 | for (d = ipathend-4; d >= ipath; --d) { | |
2814 | if ((*d == 'p' || *d == 'P') | |
2815 | && !ibcmp(d, "perl", 4)) | |
2816 | { | |
2817 | break; | |
2818 | } | |
2819 | } | |
2820 | if (d < ipath) | |
2821 | d = Nullch; | |
2822 | } | |
2823 | #endif | |
2824 | } | |
44a8e56a | 2825 | #ifdef ALTERNATE_SHEBANG |
2826 | /* | |
2827 | * If the ALTERNATE_SHEBANG on this system starts with a | |
2828 | * character that can be part of a Perl expression, then if | |
2829 | * we see it but not "perl", we're probably looking at the | |
2830 | * start of Perl code, not a request to hand off to some | |
2831 | * other interpreter. Similarly, if "perl" is there, but | |
2832 | * not in the first 'word' of the line, we assume the line | |
2833 | * contains the start of the Perl program. | |
44a8e56a | 2834 | */ |
2835 | if (d && *s != '#') { | |
24c2fff4 | 2836 | const char *c = ipath; |
44a8e56a | 2837 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
2838 | c++; | |
2839 | if (c < d) | |
2840 | d = Nullch; /* "perl" not in first word; ignore */ | |
2841 | else | |
2842 | *s = '#'; /* Don't try to parse shebang line */ | |
2843 | } | |
774d564b | 2844 | #endif /* ALTERNATE_SHEBANG */ |
bf4acbe4 | 2845 | #ifndef MACOS_TRADITIONAL |
748a9306 | 2846 | if (!d && |
44a8e56a | 2847 | *s == '#' && |
774d564b | 2848 | ipathend > ipath && |
3280af22 | 2849 | !PL_minus_c && |
748a9306 | 2850 | !instr(s,"indir") && |
3280af22 | 2851 | instr(PL_origargv[0],"perl")) |
748a9306 | 2852 | { |
9f68db38 | 2853 | char **newargv; |
9f68db38 | 2854 | |
774d564b | 2855 | *ipathend = '\0'; |
2856 | s = ipathend + 1; | |
3280af22 | 2857 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 2858 | s++; |
3280af22 NIS |
2859 | if (s < PL_bufend) { |
2860 | Newz(899,newargv,PL_origargc+3,char*); | |
9f68db38 | 2861 | newargv[1] = s; |
3280af22 | 2862 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
2863 | s++; |
2864 | *s = '\0'; | |
3280af22 | 2865 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
2866 | } |
2867 | else | |
3280af22 | 2868 | newargv = PL_origargv; |
774d564b | 2869 | newargv[0] = ipath; |
629185f5 | 2870 | PERL_FPU_PRE_EXEC |
b4748376 | 2871 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
629185f5 | 2872 | PERL_FPU_POST_EXEC |
cea2e8a9 | 2873 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 2874 | } |
bf4acbe4 | 2875 | #endif |
748a9306 | 2876 | if (d) { |
24c2fff4 NC |
2877 | const U32 oldpdb = PL_perldb; |
2878 | const bool oldn = PL_minus_n; | |
2879 | const bool oldp = PL_minus_p; | |
748a9306 LW |
2880 | |
2881 | while (*d && !isSPACE(*d)) d++; | |
bf4acbe4 | 2882 | while (SPACE_OR_TAB(*d)) d++; |
748a9306 LW |
2883 | |
2884 | if (*d++ == '-') { | |
24c2fff4 | 2885 | const bool switches_done = PL_doswitches; |
8cc95fdb | 2886 | do { |
7f8d406d | 2887 | if (*d == 'M' || *d == 'm') { |
24c2fff4 | 2888 | const char *m = d; |
8cc95fdb | 2889 | while (*d && !isSPACE(*d)) d++; |
cea2e8a9 | 2890 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
8cc95fdb | 2891 | (int)(d - m), m); |
2892 | } | |
2893 | d = moreswitches(d); | |
2894 | } while (d); | |
f824e39a JH |
2895 | if (PL_doswitches && !switches_done) { |
2896 | int argc = PL_origargc; | |
2897 | char **argv = PL_origargv; | |
2898 | do { | |
2899 | argc--,argv++; | |
2900 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
2901 | init_argv_symbols(argc,argv); | |
2902 | } | |
155aba94 GS |
2903 | if ((PERLDB_LINE && !oldpdb) || |
2904 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) | |
b084f20b | 2905 | /* if we have already added "LINE: while (<>) {", |
2906 | we must not do it again */ | |
748a9306 | 2907 | { |
2a8de9e2 | 2908 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
2909 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
2910 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 2911 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 | 2912 | PL_preambled = FALSE; |
84902520 | 2913 | if (PERLDB_LINE) |
3280af22 | 2914 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
2915 | goto retry; |
2916 | } | |
a11ec5a9 RGS |
2917 | if (PL_doswitches && !switches_done) { |
2918 | int argc = PL_origargc; | |
2919 | char **argv = PL_origargv; | |
2920 | do { | |
2921 | argc--,argv++; | |
2922 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
2923 | init_argv_symbols(argc,argv); | |
2924 | } | |
a0d0e21e | 2925 | } |
79072805 | 2926 | } |
9f68db38 | 2927 | } |
79072805 | 2928 | } |
3280af22 NIS |
2929 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
2930 | PL_bufptr = s; | |
2931 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 2932 | return yylex(); |
ae986130 | 2933 | } |
378cc40b | 2934 | goto retry; |
4fdae800 | 2935 | case '\r': |
6a27c188 | 2936 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 2937 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 2938 | Perl_croak(aTHX_ |
cc507455 | 2939 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 2940 | #endif |
4fdae800 | 2941 | case ' ': case '\t': case '\f': case 013: |
bf4acbe4 GS |
2942 | #ifdef MACOS_TRADITIONAL |
2943 | case '\312': | |
2944 | #endif | |
378cc40b LW |
2945 | s++; |
2946 | goto retry; | |
378cc40b | 2947 | case '#': |
e929a76b | 2948 | case '\n': |
3280af22 | 2949 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
2950 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
2951 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
2952 | CopLINE_dec(PL_curcop); | |
2953 | incline(s); | |
2954 | } | |
3280af22 | 2955 | d = PL_bufend; |
a687059c | 2956 | while (s < d && *s != '\n') |
378cc40b | 2957 | s++; |
0f85fab0 | 2958 | if (s < d) |
378cc40b | 2959 | s++; |
78c267c1 | 2960 | else if (s > d) /* Found by Ilya: feed random input to Perl. */ |
a8406387 | 2961 | Perl_croak(aTHX_ "panic: input overflow"); |
463ee0b2 | 2962 | incline(s); |
3280af22 NIS |
2963 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
2964 | PL_bufptr = s; | |
2965 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 2966 | return yylex(); |
a687059c | 2967 | } |
378cc40b | 2968 | } |
a687059c | 2969 | else { |
378cc40b | 2970 | *s = '\0'; |
3280af22 | 2971 | PL_bufend = s; |
a687059c | 2972 | } |
378cc40b LW |
2973 | goto retry; |
2974 | case '-': | |
79072805 | 2975 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 JH |
2976 | I32 ftst = 0; |
2977 | ||
378cc40b | 2978 | s++; |
3280af22 | 2979 | PL_bufptr = s; |
748a9306 LW |
2980 | tmp = *s++; |
2981 | ||
bf4acbe4 | 2982 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
2983 | s++; |
2984 | ||
2985 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 2986 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
4e553d73 | 2987 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 2988 | "### Saw unary minus before =>, forcing word '%s'\n", s); |
5f80b19c | 2989 | } ); |
748a9306 LW |
2990 | OPERATOR('-'); /* unary minus */ |
2991 | } | |
3280af22 | 2992 | PL_last_uni = PL_oldbufptr; |
748a9306 | 2993 | switch (tmp) { |
e5edeb50 JH |
2994 | case 'r': ftst = OP_FTEREAD; break; |
2995 | case 'w': ftst = OP_FTEWRITE; break; | |
2996 | case 'x': ftst = OP_FTEEXEC; break; | |
2997 | case 'o': ftst = OP_FTEOWNED; break; | |
2998 | case 'R': ftst = OP_FTRREAD; break; | |
2999 | case 'W': ftst = OP_FTRWRITE; break; | |
3000 | case 'X': ftst = OP_FTREXEC; break; | |
3001 | case 'O': ftst = OP_FTROWNED; break; | |
3002 | case 'e': ftst = OP_FTIS; break; | |
3003 | case 'z': ftst = OP_FTZERO; break; | |
3004 | case 's': ftst = OP_FTSIZE; break; | |
3005 | case 'f': ftst = OP_FTFILE; break; | |
3006 | case 'd': ftst = OP_FTDIR; break; | |
3007 | case 'l': ftst = OP_FTLINK; break; | |
3008 | case 'p': ftst = OP_FTPIPE; break; | |
3009 | case 'S': ftst = OP_FTSOCK; break; | |
3010 | case 'u': ftst = OP_FTSUID; break; | |
3011 | case 'g': ftst = OP_FTSGID; break; | |
3012 | case 'k': ftst = OP_FTSVTX; break; | |
3013 | case 'b': ftst = OP_FTBLK; break; | |
3014 | case 'c': ftst = OP_FTCHR; break; | |
3015 | case 't': ftst = OP_FTTTY; break; | |
3016 | case 'T': ftst = OP_FTTEXT; break; | |
3017 | case 'B': ftst = OP_FTBINARY; break; | |
3018 | case 'M': case 'A': case 'C': | |
3019 | gv_fetchpv("\024",TRUE, SVt_PV); | |
3020 | switch (tmp) { | |
3021 | case 'M': ftst = OP_FTMTIME; break; | |
3022 | case 'A': ftst = OP_FTATIME; break; | |
3023 | case 'C': ftst = OP_FTCTIME; break; | |
3024 | default: break; | |
3025 | } | |
3026 | break; | |
378cc40b | 3027 | default: |
378cc40b LW |
3028 | break; |
3029 | } | |
e5edeb50 | 3030 | if (ftst) { |
eb160463 | 3031 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 3032 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
0844c848 | 3033 | "### Saw file test %c\n", (int)ftst); |
5f80b19c | 3034 | } ); |
e5edeb50 JH |
3035 | FTST(ftst); |
3036 | } | |
3037 | else { | |
3038 | /* Assume it was a minus followed by a one-letter named | |
3039 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 3040 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a8eb0fba | 3041 | "### '-%c' looked like a file test but was not\n", |
6155262a | 3042 | (int) tmp); |
5f80b19c | 3043 | } ); |
f050833e | 3044 | s = --PL_bufptr; |
e5edeb50 | 3045 | } |
378cc40b | 3046 | } |
a687059c LW |
3047 | tmp = *s++; |
3048 | if (*s == tmp) { | |
3049 | s++; | |
3280af22 | 3050 | if (PL_expect == XOPERATOR) |
79072805 LW |
3051 | TERM(POSTDEC); |
3052 | else | |
3053 | OPERATOR(PREDEC); | |
3054 | } | |
3055 | else if (*s == '>') { | |
3056 | s++; | |
3057 | s = skipspace(s); | |
7e2040f0 | 3058 | if (isIDFIRST_lazy_if(s,UTF)) { |
a0d0e21e | 3059 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); |
463ee0b2 | 3060 | TOKEN(ARROW); |
79072805 | 3061 | } |
748a9306 LW |
3062 | else if (*s == '$') |
3063 | OPERATOR(ARROW); | |
463ee0b2 | 3064 | else |
748a9306 | 3065 | TERM(ARROW); |
a687059c | 3066 | } |
3280af22 | 3067 | if (PL_expect == XOPERATOR) |
79072805 LW |
3068 | Aop(OP_SUBTRACT); |
3069 | else { | |
3280af22 | 3070 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) |
2f3197b3 | 3071 | check_uni(); |
79072805 | 3072 | OPERATOR('-'); /* unary minus */ |
2f3197b3 | 3073 | } |
79072805 | 3074 | |
378cc40b | 3075 | case '+': |
a687059c LW |
3076 | tmp = *s++; |
3077 | if (*s == tmp) { | |
378cc40b | 3078 | s++; |
3280af22 | 3079 | if (PL_expect == XOPERATOR) |
79072805 LW |
3080 | TERM(POSTINC); |
3081 | else | |
3082 | OPERATOR(PREINC); | |
378cc40b | 3083 | } |
3280af22 | 3084 | if (PL_expect == XOPERATOR) |
79072805 LW |
3085 | Aop(OP_ADD); |
3086 | else { | |
3280af22 | 3087 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) |
2f3197b3 | 3088 | check_uni(); |
a687059c | 3089 | OPERATOR('+'); |
2f3197b3 | 3090 | } |
a687059c | 3091 | |
378cc40b | 3092 | case '*': |
3280af22 NIS |
3093 | if (PL_expect != XOPERATOR) { |
3094 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
3095 | PL_expect = XOPERATOR; | |
3096 | force_ident(PL_tokenbuf, '*'); | |
3097 | if (!*PL_tokenbuf) | |
a0d0e21e | 3098 | PREREF('*'); |
79072805 | 3099 | TERM('*'); |
a687059c | 3100 | } |
79072805 LW |
3101 | s++; |
3102 | if (*s == '*') { | |
a687059c | 3103 | s++; |
79072805 | 3104 | PWop(OP_POW); |
a687059c | 3105 | } |
79072805 LW |
3106 | Mop(OP_MULTIPLY); |
3107 | ||
378cc40b | 3108 | case '%': |
3280af22 | 3109 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 3110 | ++s; |
3111 | Mop(OP_MODULO); | |
a687059c | 3112 | } |
3280af22 NIS |
3113 | PL_tokenbuf[0] = '%'; |
3114 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, TRUE); | |
3115 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 3116 | PREREF('%'); |
a687059c | 3117 | } |
3280af22 | 3118 | PL_pending_ident = '%'; |
bbce6d69 | 3119 | TERM('%'); |
a687059c | 3120 | |
378cc40b | 3121 | case '^': |
79072805 | 3122 | s++; |
a0d0e21e | 3123 | BOop(OP_BIT_XOR); |
79072805 | 3124 | case '[': |
3280af22 | 3125 | PL_lex_brackets++; |
79072805 | 3126 | /* FALL THROUGH */ |
378cc40b | 3127 | case '~': |
378cc40b | 3128 | case ',': |
378cc40b LW |
3129 | tmp = *s++; |
3130 | OPERATOR(tmp); | |
a0d0e21e LW |
3131 | case ':': |
3132 | if (s[1] == ':') { | |
3133 | len = 0; | |
3134 | goto just_a_word; | |
3135 | } | |
3136 | s++; | |
09bef843 SB |
3137 | switch (PL_expect) { |
3138 | OP *attrs; | |
3139 | case XOPERATOR: | |
3140 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
3141 | break; | |
3142 | PL_bufptr = s; /* update in case we back off */ | |
3143 | goto grabattrs; | |
3144 | case XATTRBLOCK: | |
3145 | PL_expect = XBLOCK; | |
3146 | goto grabattrs; | |
3147 | case XATTRTERM: | |
3148 | PL_expect = XTERMBLOCK; | |
3149 | grabattrs: | |
3150 | s = skipspace(s); | |
3151 | attrs = Nullop; | |
7e2040f0 | 3152 | while (isIDFIRST_lazy_if(s,UTF)) { |
09bef843 | 3153 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
f9829d6b GS |
3154 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len))) { |
3155 | if (tmp < 0) tmp = -tmp; | |
3156 | switch (tmp) { | |
3157 | case KEY_or: | |
3158 | case KEY_and: | |
3159 | case KEY_for: | |
3160 | case KEY_unless: | |
3161 | case KEY_if: | |
3162 | case KEY_while: | |
3163 | case KEY_until: | |
3164 | goto got_attrs; | |
3165 | default: | |
3166 | break; | |
3167 | } | |
3168 | } | |
09bef843 SB |
3169 | if (*d == '(') { |
3170 | d = scan_str(d,TRUE,TRUE); | |
3171 | if (!d) { | |
09bef843 SB |
3172 | /* MUST advance bufptr here to avoid bogus |
3173 | "at end of line" context messages from yyerror(). | |
3174 | */ | |
3175 | PL_bufptr = s + len; | |
3176 | yyerror("Unterminated attribute parameter in attribute list"); | |
3177 | if (attrs) | |
3178 | op_free(attrs); | |
f31bfe61 | 3179 | return REPORT(0); /* EOF indicator */ |
09bef843 SB |
3180 | } |
3181 | } | |
3182 | if (PL_lex_stuff) { | |
3183 | SV *sv = newSVpvn(s, len); | |
3184 | sv_catsv(sv, PL_lex_stuff); | |
3185 | attrs = append_elem(OP_LIST, attrs, | |
3186 | newSVOP(OP_CONST, 0, sv)); | |
3187 | SvREFCNT_dec(PL_lex_stuff); | |
3188 | PL_lex_stuff = Nullsv; | |
3189 | } | |
3190 | else { | |
7a3458b7 NC |
3191 | if (len == 6 && strnEQ(s, "unique", len)) { |
3192 | if (PL_in_my == KEY_our) | |
3193 | #ifdef USE_ITHREADS | |
3194 | GvUNIQUE_on(cGVOPx_gv(yylval.opval)); | |
3195 | #else | |
3196 | ; /* skip to avoid loading attributes.pm */ | |
3197 | #endif | |
a00f3e00 | 3198 | else |
7a3458b7 NC |
3199 | Perl_croak(aTHX_ "The 'unique' attribute may only be applied to 'our' variables"); |
3200 | } | |
3201 | ||
d3cea301 SB |
3202 | /* NOTE: any CV attrs applied here need to be part of |
3203 | the CVf_BUILTIN_ATTRS define in cv.h! */ | |
7a3458b7 | 3204 | else if (!PL_in_my && len == 6 && strnEQ(s, "lvalue", len)) |
78f9721b SM |
3205 | CvLVALUE_on(PL_compcv); |
3206 | else if (!PL_in_my && len == 6 && strnEQ(s, "locked", len)) | |
3207 | CvLOCKED_on(PL_compcv); | |
3208 | else if (!PL_in_my && len == 6 && strnEQ(s, "method", len)) | |
3209 | CvMETHOD_on(PL_compcv); | |
3210 | /* After we've set the flags, it could be argued that | |
3211 | we don't need to do the attributes.pm-based setting | |
3212 | process, and shouldn't bother appending recognized | |
d3cea301 SB |
3213 | flags. To experiment with that, uncomment the |
3214 | following "else". (Note that's already been | |
3215 | uncommented. That keeps the above-applied built-in | |
3216 | attributes from being intercepted (and possibly | |
3217 | rejected) by a package's attribute routines, but is | |
3218 | justified by the performance win for the common case | |
3219 | of applying only built-in attributes.) */ | |
0256094b | 3220 | else |
78f9721b SM |
3221 | attrs = append_elem(OP_LIST, attrs, |
3222 | newSVOP(OP_CONST, 0, | |
3223 | newSVpvn(s, len))); | |
09bef843 SB |
3224 | } |
3225 | s = skipspace(d); | |
0120eecf | 3226 | if (*s == ':' && s[1] != ':') |
09bef843 | 3227 | s = skipspace(s+1); |
0120eecf GS |
3228 | else if (s == d) |
3229 | break; /* require real whitespace or :'s */ | |
09bef843 | 3230 | } |
f9829d6b | 3231 | tmp = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ |
5b7ea690 | 3232 | if (*s != ';' && *s != '}' && *s != tmp && (tmp != '=' || *s != ')')) { |
24c2fff4 | 3233 | const char q = ((*s == '\'') ? '"' : '\''); |
09bef843 SB |
3234 | /* If here for an expression, and parsed no attrs, back off. */ |
3235 | if (tmp == '=' && !attrs) { | |
3236 | s = PL_bufptr; | |
3237 | break; | |
3238 | } | |
3239 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
3240 | context messages from yyerror(). | |
3241 | */ | |
3242 | PL_bufptr = s; | |
3243 | if (!*s) | |
3244 | yyerror("Unterminated attribute list"); | |
3245 | else | |
3246 | yyerror(Perl_form(aTHX_ "Invalid separator character %c%c%c in attribute list", | |
3247 | q, *s, q)); | |
3248 | if (attrs) | |
3249 | op_free(attrs); | |
3250 | OPERATOR(':'); | |
3251 | } | |
f9829d6b | 3252 | got_attrs: |
09bef843 SB |
3253 | if (attrs) { |
3254 | PL_nextval[PL_nexttoke].opval = attrs; | |
3255 | force_next(THING); | |
3256 | } | |
3257 | TOKEN(COLONATTR); | |
3258 | } | |
a0d0e21e | 3259 | OPERATOR(':'); |
8990e307 LW |
3260 | case '(': |
3261 | s++; | |
3280af22 NIS |
3262 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
3263 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 3264 | else |
3280af22 | 3265 | PL_expect = XTERM; |
ec2e9529 | 3266 | s = skipspace(s); |
a0d0e21e | 3267 | TOKEN('('); |
378cc40b | 3268 | case ';': |
f4dd75d9 | 3269 | CLINE; |
378cc40b LW |
3270 | tmp = *s++; |
3271 | OPERATOR(tmp); | |
3272 | case ')': | |
378cc40b | 3273 | tmp = *s++; |
16d20bd9 AD |
3274 | s = skipspace(s); |
3275 | if (*s == '{') | |
3276 | PREBLOCK(tmp); | |
378cc40b | 3277 | TERM(tmp); |
79072805 LW |
3278 | case ']': |
3279 | s++; | |
3280af22 | 3280 | if (PL_lex_brackets <= 0) |
d98d5fff | 3281 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 3282 | else |
3280af22 NIS |
3283 | --PL_lex_brackets; |
3284 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
3285 | if (PL_lex_brackets == 0) { | |
a0d0e21e | 3286 | if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>')) |
3280af22 | 3287 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
3288 | } |
3289 | } | |
4633a7c4 | 3290 | TERM(']'); |
79072805 LW |
3291 | case '{': |
3292 | leftbracket: | |
79072805 | 3293 | s++; |
3280af22 | 3294 | if (PL_lex_brackets > 100) { |
bda19f49 | 3295 | Renew(PL_lex_brackstack, PL_lex_brackets + 10, char); |
8990e307 | 3296 | } |
3280af22 | 3297 | switch (PL_expect) { |
a0d0e21e | 3298 | case XTERM: |
3280af22 | 3299 | if (PL_lex_formbrack) { |
a0d0e21e LW |
3300 | s--; |
3301 | PRETERMBLOCK(DO); | |
3302 | } | |
3280af22 NIS |
3303 | if (PL_oldoldbufptr == PL_last_lop) |
3304 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 3305 | else |
3280af22 | 3306 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 3307 | OPERATOR(HASHBRACK); |
a0d0e21e | 3308 | case XOPERATOR: |
bf4acbe4 | 3309 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 3310 | s++; |
44a8e56a | 3311 | d = s; |
3280af22 NIS |
3312 | PL_tokenbuf[0] = '\0'; |
3313 | if (d < PL_bufend && *d == '-') { | |
3314 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 3315 | d++; |
bf4acbe4 | 3316 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 3317 | d++; |
3318 | } | |
7e2040f0 | 3319 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 3320 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 3321 | FALSE, &len); |
bf4acbe4 | 3322 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
3323 | d++; |
3324 | if (*d == '}') { | |
24c2fff4 | 3325 | const char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 3326 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
3327 | if (minus) | |
3328 | force_next('-'); | |
748a9306 LW |
3329 | } |
3330 | } | |
3331 | /* FALL THROUGH */ | |
09bef843 | 3332 | case XATTRBLOCK: |
748a9306 | 3333 | case XBLOCK: |
3280af22 NIS |
3334 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
3335 | PL_expect = XSTATE; | |
a0d0e21e | 3336 | break; |
09bef843 | 3337 | case XATTRTERM: |
a0d0e21e | 3338 | case XTERMBLOCK: |
3280af22 NIS |
3339 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
3340 | PL_expect = XSTATE; | |
a0d0e21e LW |
3341 | break; |
3342 | default: { | |
24c2fff4 | 3343 | const char *t; |
3280af22 NIS |
3344 | if (PL_oldoldbufptr == PL_last_lop) |
3345 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 3346 | else |
3280af22 | 3347 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
a0d0e21e | 3348 | s = skipspace(s); |
8452ff4b SB |
3349 | if (*s == '}') { |
3350 | if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) { | |
3351 | PL_expect = XTERM; | |
3352 | /* This hack is to get the ${} in the message. */ | |
3353 | PL_bufptr = s+1; | |
3354 | yyerror("syntax error"); | |
3355 | break; | |
3356 | } | |
a0d0e21e | 3357 | OPERATOR(HASHBRACK); |
8452ff4b | 3358 | } |
b8a4b1be GS |
3359 | /* This hack serves to disambiguate a pair of curlies |
3360 | * as being a block or an anon hash. Normally, expectation | |
3361 | * determines that, but in cases where we're not in a | |
3362 | * position to expect anything in particular (like inside | |
3363 | * eval"") we have to resolve the ambiguity. This code | |
3364 | * covers the case where the first term in the curlies is a | |
3365 | * quoted string. Most other cases need to be explicitly | |
3366 | * disambiguated by prepending a `+' before the opening | |
3367 | * curly in order to force resolution as an anon hash. | |
3368 | * | |
3369 | * XXX should probably propagate the outer expectation | |
3370 | * into eval"" to rely less on this hack, but that could | |
3371 | * potentially break current behavior of eval"". | |
3372 | * GSAR 97-07-21 | |
3373 | */ | |
3374 | t = s; | |
3375 | if (*s == '\'' || *s == '"' || *s == '`') { | |
3376 | /* common case: get past first string, handling escapes */ | |
3280af22 | 3377 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
3378 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
3379 | t++; | |
3380 | t++; | |
a0d0e21e | 3381 | } |
b8a4b1be | 3382 | else if (*s == 'q') { |
3280af22 | 3383 | if (++t < PL_bufend |
b8a4b1be | 3384 | && (!isALNUM(*t) |
3280af22 | 3385 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
3386 | && !isALNUM(*t)))) |
3387 | { | |
e3b9cd39 | 3388 | /* skip q//-like construct */ |
24c2fff4 | 3389 | const char *tmps; |
b8a4b1be GS |
3390 | char open, close, term; |
3391 | I32 brackets = 1; | |
3392 | ||
3280af22 | 3393 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be | 3394 | t++; |
e3b9cd39 JH |
3395 | /* check for q => */ |
3396 | if (t+1 < PL_bufend && t[0] == '=' && t[1] == '>') { | |
3397 | OPERATOR(HASHBRACK); | |
3398 | } | |
b8a4b1be GS |
3399 | term = *t; |
3400 | open = term; | |
3401 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
3402 | term = tmps[5]; | |
3403 | close = term; | |
3404 | if (open == close) | |
3280af22 NIS |
3405 | for (t++; t < PL_bufend; t++) { |
3406 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 3407 | t++; |
6d07e5e9 | 3408 | else if (*t == open) |
b8a4b1be GS |
3409 | break; |
3410 | } | |
e3b9cd39 | 3411 | else { |
3280af22 NIS |
3412 | for (t++; t < PL_bufend; t++) { |
3413 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 3414 | t++; |
6d07e5e9 | 3415 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
3416 | break; |
3417 | else if (*t == open) | |
3418 | brackets++; | |
3419 | } | |
e3b9cd39 JH |
3420 | } |
3421 | t++; | |
b8a4b1be | 3422 | } |
e3b9cd39 JH |
3423 | else |
3424 | /* skip plain q word */ | |
3425 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) | |
3426 | t += UTF8SKIP(t); | |
a0d0e21e | 3427 | } |
7e2040f0 | 3428 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 3429 | t += UTF8SKIP(t); |
7e2040f0 | 3430 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 3431 | t += UTF8SKIP(t); |
a0d0e21e | 3432 | } |
3280af22 | 3433 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 3434 | t++; |
b8a4b1be GS |
3435 | /* if comma follows first term, call it an anon hash */ |
3436 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 3437 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 3438 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 3439 | OPERATOR(HASHBRACK); |
3280af22 | 3440 | if (PL_expect == XREF) |
4e4e412b | 3441 | PL_expect = XTERM; |
a0d0e21e | 3442 | else { |
3280af22 NIS |
3443 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
3444 | PL_expect = XSTATE; | |
a0d0e21e | 3445 | } |
8990e307 | 3446 | } |
a0d0e21e | 3447 | break; |
463ee0b2 | 3448 | } |
57843af0 | 3449 | yylval.ival = CopLINE(PL_curcop); |
79072805 | 3450 | if (isSPACE(*s) || *s == '#') |
3280af22 | 3451 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 3452 | TOKEN('{'); |
378cc40b | 3453 | case '}': |
79072805 LW |
3454 | rightbracket: |
3455 | s++; | |
3280af22 | 3456 | if (PL_lex_brackets <= 0) |
d98d5fff | 3457 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 3458 | else |
3280af22 | 3459 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 3460 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
3461 | PL_lex_formbrack = 0; |
3462 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
3463 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
3464 | if (PL_expect & XFAKEBRACK) { |
3465 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
3466 | PL_lex_state = LEX_INTERPEND; |
3467 | PL_bufptr = s; | |
cea2e8a9 | 3468 | return yylex(); /* ignore fake brackets */ |
79072805 | 3469 | } |
fa83b5b6 | 3470 | if (*s == '-' && s[1] == '>') |
3280af22 | 3471 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 3472 | else if (*s != '[' && *s != '{') |
3280af22 | 3473 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
3474 | } |
3475 | } | |
9059aa12 LW |
3476 | if (PL_expect & XFAKEBRACK) { |
3477 | PL_expect &= XENUMMASK; | |
3280af22 | 3478 | PL_bufptr = s; |
cea2e8a9 | 3479 | return yylex(); /* ignore fake brackets */ |
748a9306 | 3480 | } |
79072805 LW |
3481 | force_next('}'); |
3482 | TOKEN(';'); | |
378cc40b LW |
3483 | case '&': |
3484 | s++; | |
3485 | tmp = *s++; | |
3486 | if (tmp == '&') | |
a0d0e21e | 3487 | AOPERATOR(ANDAND); |
378cc40b | 3488 | s--; |
3280af22 | 3489 | if (PL_expect == XOPERATOR) { |
7e2040f0 GS |
3490 | if (ckWARN(WARN_SEMICOLON) |
3491 | && isIDFIRST_lazy_if(s,UTF) && PL_bufptr == PL_linestart) | |
3492 | { | |
57843af0 | 3493 | CopLINE_dec(PL_curcop); |
9014280d | 3494 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 3495 | CopLINE_inc(PL_curcop); |
463ee0b2 | 3496 | } |
79072805 | 3497 | BAop(OP_BIT_AND); |
463ee0b2 | 3498 | } |
79072805 | 3499 | |
3280af22 NIS |
3500 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
3501 | if (*PL_tokenbuf) { | |
3502 | PL_expect = XOPERATOR; | |
3503 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 3504 | } |
79072805 LW |
3505 | else |
3506 | PREREF('&'); | |
c07a80fd | 3507 | yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
3508 | TERM('&'); |
3509 | ||
378cc40b LW |
3510 | case '|': |
3511 | s++; | |
3512 | tmp = *s++; | |
3513 | if (tmp == '|') | |
a0d0e21e | 3514 | AOPERATOR(OROR); |
378cc40b | 3515 | s--; |
79072805 | 3516 | BOop(OP_BIT_OR); |
378cc40b LW |
3517 | case '=': |
3518 | s++; | |
3519 | tmp = *s++; | |
3520 | if (tmp == '=') | |
79072805 LW |
3521 | Eop(OP_EQ); |
3522 | if (tmp == '>') | |
3523 | OPERATOR(','); | |
378cc40b | 3524 | if (tmp == '~') |
79072805 | 3525 | PMop(OP_MATCH); |
599cee73 | 3526 | if (ckWARN(WARN_SYNTAX) && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp)) |
9014280d | 3527 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Reversed %c= operator",(int)tmp); |
378cc40b | 3528 | s--; |
3280af22 NIS |
3529 | if (PL_expect == XSTATE && isALPHA(tmp) && |
3530 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
748a9306 | 3531 | { |
3280af22 NIS |
3532 | if (PL_in_eval && !PL_rsfp) { |
3533 | d = PL_bufend; | |
a5f75d66 AD |
3534 | while (s < d) { |
3535 | if (*s++ == '\n') { | |
3536 | incline(s); | |
3537 | if (strnEQ(s,"=cut",4)) { | |
3538 | s = strchr(s,'\n'); | |
3539 | if (s) | |
3540 | s++; | |
3541 | else | |
3542 | s = d; | |
3543 | incline(s); | |
3544 | goto retry; | |
3545 | } | |
3546 | } | |
3547 | } | |
3548 | goto retry; | |
3549 | } | |
3280af22 NIS |
3550 | s = PL_bufend; |
3551 | PL_doextract = TRUE; | |
a0d0e21e LW |
3552 | goto retry; |
3553 | } | |
3280af22 | 3554 | if (PL_lex_brackets < PL_lex_formbrack) { |
24c2fff4 | 3555 | const char *t; |
51882d45 | 3556 | #ifdef PERL_STRICT_CR |
bf4acbe4 | 3557 | for (t = s; SPACE_OR_TAB(*t); t++) ; |
51882d45 | 3558 | #else |
bf4acbe4 | 3559 | for (t = s; SPACE_OR_TAB(*t) || *t == '\r'; t++) ; |
51882d45 | 3560 | #endif |
a0d0e21e LW |
3561 | if (*t == '\n' || *t == '#') { |
3562 | s--; | |
3280af22 | 3563 | PL_expect = XBLOCK; |
a0d0e21e LW |
3564 | goto leftbracket; |
3565 | } | |
79072805 | 3566 | } |
a0d0e21e LW |
3567 | yylval.ival = 0; |
3568 | OPERATOR(ASSIGNOP); | |
378cc40b LW |
3569 | case '!': |
3570 | s++; | |
3571 | tmp = *s++; | |
3572 | if (tmp == '=') | |
79072805 | 3573 | Eop(OP_NE); |
378cc40b | 3574 | if (tmp == '~') |
79072805 | 3575 | PMop(OP_NOT); |
378cc40b LW |
3576 | s--; |
3577 | OPERATOR('!'); | |
3578 | case '<': | |
3280af22 | 3579 | if (PL_expect != XOPERATOR) { |
93a17b20 | 3580 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 3581 | check_uni(); |
79072805 LW |
3582 | if (s[1] == '<') |
3583 | s = scan_heredoc(s); | |
3584 | else | |
3585 | s = scan_inputsymbol(s); | |
3586 | TERM(sublex_start()); | |
378cc40b LW |
3587 | } |
3588 | s++; | |
3589 | tmp = *s++; | |
3590 | if (tmp == '<') | |
79072805 | 3591 | SHop(OP_LEFT_SHIFT); |
395c3793 LW |
3592 | if (tmp == '=') { |
3593 | tmp = *s++; | |
3594 | if (tmp == '>') | |
79072805 | 3595 | Eop(OP_NCMP); |
395c3793 | 3596 | s--; |
79072805 | 3597 | Rop(OP_LE); |
395c3793 | 3598 | } |
378cc40b | 3599 | s--; |
79072805 | 3600 | Rop(OP_LT); |
378cc40b LW |
3601 | case '>': |
3602 | s++; | |
3603 | tmp = *s++; | |
3604 | if (tmp == '>') | |
79072805 | 3605 | SHop(OP_RIGHT_SHIFT); |
378cc40b | 3606 | if (tmp == '=') |
79072805 | 3607 | Rop(OP_GE); |
378cc40b | 3608 | s--; |
79072805 | 3609 | Rop(OP_GT); |
378cc40b LW |
3610 | |
3611 | case '$': | |
bbce6d69 | 3612 | CLINE; |
3613 | ||
3280af22 NIS |
3614 | if (PL_expect == XOPERATOR) { |
3615 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
3616 | PL_expect = XTERM; | |
a0d0e21e | 3617 | depcom(); |
f31bfe61 | 3618 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 3619 | } |
8990e307 | 3620 | } |
a0d0e21e | 3621 | |
7e2040f0 | 3622 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-", s[2]))) { |
3280af22 | 3623 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
3624 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
3625 | sizeof PL_tokenbuf - 1, FALSE); | |
3626 | if (PL_expect == XOPERATOR) | |
3627 | no_op("Array length", s); | |
3280af22 | 3628 | if (!PL_tokenbuf[1]) |
a0d0e21e | 3629 | PREREF(DOLSHARP); |
3280af22 NIS |
3630 | PL_expect = XOPERATOR; |
3631 | PL_pending_ident = '#'; | |
463ee0b2 | 3632 | TOKEN(DOLSHARP); |
79072805 | 3633 | } |
bbce6d69 | 3634 | |
3280af22 | 3635 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
3636 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
3637 | sizeof PL_tokenbuf - 1, FALSE); | |
3638 | if (PL_expect == XOPERATOR) | |
3639 | no_op("Scalar", s); | |
3280af22 NIS |
3640 | if (!PL_tokenbuf[1]) { |
3641 | if (s == PL_bufend) | |
bbce6d69 | 3642 | yyerror("Final $ should be \\$ or $name"); |
3643 | PREREF('$'); | |
8990e307 | 3644 | } |
a0d0e21e | 3645 | |
bbce6d69 | 3646 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 3647 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
bbce6d69 | 3648 | yylval.opval = newSVOP(OP_CONST, 0, |
b448e4fe | 3649 | newSViv(PL_compiling.cop_arybase)); |
bbce6d69 | 3650 | yylval.opval->op_private = OPpCONST_ARYBASE; |
3651 | TERM(THING); | |
3652 | } | |
3653 | ||
ff68c719 | 3654 | d = s; |
69d2bceb | 3655 | tmp = (I32)*s; |
3280af22 | 3656 | if (PL_lex_state == LEX_NORMAL) |
ff68c719 | 3657 | s = skipspace(s); |
3658 | ||
3280af22 | 3659 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 3660 | char *t; |
3661 | if (*s == '[') { | |
3280af22 | 3662 | PL_tokenbuf[0] = '@'; |
599cee73 | 3663 | if (ckWARN(WARN_SYNTAX)) { |
bbce6d69 | 3664 | for(t = s + 1; |
7e2040f0 | 3665 | isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$'; |
bbce6d69 | 3666 | t++) ; |
a0d0e21e | 3667 | if (*t++ == ',') { |
3280af22 NIS |
3668 | PL_bufptr = skipspace(PL_bufptr); |
3669 | while (t < PL_bufend && *t != ']') | |
bbce6d69 | 3670 | t++; |
9014280d | 3671 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 PM |
3672 | "Multidimensional syntax %.*s not supported", |
3673 | (t - PL_bufptr) + 1, PL_bufptr); | |
a0d0e21e LW |
3674 | } |
3675 | } | |
bbce6d69 | 3676 | } |
3677 | else if (*s == '{') { | |
3280af22 | 3678 | PL_tokenbuf[0] = '%'; |
599cee73 | 3679 | if (ckWARN(WARN_SYNTAX) && strEQ(PL_tokenbuf+1, "SIG") && |
bbce6d69 | 3680 | (t = strchr(s, '}')) && (t = strchr(t, '='))) |
3681 | { | |
3280af22 | 3682 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e | 3683 | for (t++; isSPACE(*t); t++) ; |
7e2040f0 | 3684 | if (isIDFIRST_lazy_if(t,UTF)) { |
24c2fff4 | 3685 | STRLEN len; |
8903cb82 | 3686 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, &len); |
59a6d928 | 3687 | for (; isSPACE(*t); t++) ; |
864dbfa3 | 3688 | if (*t == ';' && get_cv(tmpbuf, FALSE)) |
9014280d | 3689 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 3690 | "You need to quote \"%s\"", tmpbuf); |
748a9306 | 3691 | } |
93a17b20 LW |
3692 | } |
3693 | } | |
2f3197b3 | 3694 | } |
bbce6d69 | 3695 | |
3280af22 | 3696 | PL_expect = XOPERATOR; |
69d2bceb | 3697 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { |
24c2fff4 | 3698 | const bool islop = (PL_last_lop == PL_oldoldbufptr); |
3280af22 NIS |
3699 | if (!islop || PL_last_lop_op == OP_GREPSTART) |
3700 | PL_expect = XOPERATOR; | |
bbce6d69 | 3701 | else if (strchr("$@\"'`q", *s)) |
3280af22 | 3702 | PL_expect = XTERM; /* e.g. print $fh "foo" */ |
7e2040f0 | 3703 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) |
3280af22 | 3704 | PL_expect = XTERM; /* e.g. print $fh &sub */ |
7e2040f0 | 3705 | else if (isIDFIRST_lazy_if(s,UTF)) { |
3280af22 | 3706 | char tmpbuf[sizeof PL_tokenbuf]; |
8903cb82 | 3707 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
155aba94 | 3708 | if ((tmp = keyword(tmpbuf, len))) { |
84902520 TB |
3709 | /* binary operators exclude handle interpretations */ |
3710 | switch (tmp) { | |
3711 | case -KEY_x: | |
3712 | case -KEY_eq: | |
3713 | case -KEY_ne: | |
3714 | case -KEY_gt: | |
3715 | case -KEY_lt: | |
3716 | case -KEY_ge: | |
3717 | case -KEY_le: | |
3718 | case -KEY_cmp: | |
3719 | break; | |
3720 | default: | |
3280af22 | 3721 | PL_expect = XTERM; /* e.g. print $fh length() */ |
84902520 TB |
3722 | break; |
3723 | } | |
3724 | } | |
68dc0745 | 3725 | else { |
70cc50ef | 3726 | PL_expect = XTERM; /* e.g. print $fh subr() */ |
93a17b20 | 3727 | } |
93a17b20 | 3728 | } |
bbce6d69 | 3729 | else if (isDIGIT(*s)) |
3280af22 | 3730 | PL_expect = XTERM; /* e.g. print $fh 3 */ |
bbce6d69 | 3731 | else if (*s == '.' && isDIGIT(s[1])) |
3280af22 | 3732 | PL_expect = XTERM; /* e.g. print $fh .3 */ |
3c71ae1e NC |
3733 | else if ((*s == '?' || *s == '-' || *s == '+') |
3734 | && !isSPACE(s[1]) && s[1] != '=') | |
3280af22 | 3735 | PL_expect = XTERM; /* e.g. print $fh -1 */ |
e0587a03 | 3736 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) && s[2] != '=') |
3280af22 | 3737 | PL_expect = XTERM; /* print $fh <<"EOF" */ |
bbce6d69 | 3738 | } |
3280af22 | 3739 | PL_pending_ident = '$'; |
79072805 | 3740 | TOKEN('$'); |
378cc40b LW |
3741 | |
3742 | case '@': | |
3280af22 | 3743 | if (PL_expect == XOPERATOR) |
bbce6d69 | 3744 | no_op("Array", s); |
3280af22 NIS |
3745 | PL_tokenbuf[0] = '@'; |
3746 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
3747 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 3748 | PREREF('@'); |
3749 | } | |
3280af22 | 3750 | if (PL_lex_state == LEX_NORMAL) |
ff68c719 | 3751 | s = skipspace(s); |
3280af22 | 3752 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 3753 | if (*s == '{') |
3280af22 | 3754 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
3755 | |
3756 | /* Warn about @ where they meant $. */ | |
599cee73 | 3757 | if (ckWARN(WARN_SYNTAX)) { |
a0d0e21e | 3758 | if (*s == '[' || *s == '{') { |
24c2fff4 | 3759 | const char *t = s + 1; |
7e2040f0 | 3760 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
3761 | t++; |
3762 | if (*t == '}' || *t == ']') { | |
3763 | t++; | |
3280af22 | 3764 | PL_bufptr = skipspace(PL_bufptr); |
9014280d | 3765 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 3766 | "Scalar value %.*s better written as $%.*s", |
3280af22 | 3767 | t-PL_bufptr, PL_bufptr, t-PL_bufptr-1, PL_bufptr+1); |
a0d0e21e | 3768 | } |
93a17b20 LW |
3769 | } |
3770 | } | |
463ee0b2 | 3771 | } |
3280af22 | 3772 | PL_pending_ident = '@'; |
79072805 | 3773 | TERM('@'); |
378cc40b LW |
3774 | |
3775 | case '/': /* may either be division or pattern */ | |
3776 | case '?': /* may either be conditional or pattern */ | |
3280af22 | 3777 | if (PL_expect != XOPERATOR) { |
c277df42 | 3778 | /* Disable warning on "study /blah/" */ |
4e553d73 NIS |
3779 | if (PL_oldoldbufptr == PL_last_uni |
3780 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
7e2040f0 GS |
3781 | || memNE(PL_last_uni, "study", 5) |
3782 | || isALNUM_lazy_if(PL_last_uni+5,UTF))) | |
c277df42 | 3783 | check_uni(); |
8782bef2 | 3784 | s = scan_pat(s,OP_MATCH); |
79072805 | 3785 | TERM(sublex_start()); |
378cc40b LW |
3786 | } |
3787 | tmp = *s++; | |
a687059c | 3788 | if (tmp == '/') |
79072805 | 3789 | Mop(OP_DIVIDE); |
378cc40b LW |
3790 | OPERATOR(tmp); |
3791 | ||
3792 | case '.': | |
51882d45 GS |
3793 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
3794 | #ifdef PERL_STRICT_CR | |
3795 | && s[1] == '\n' | |
3796 | #else | |
3797 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
3798 | #endif | |
3799 | && (s == PL_linestart || s[-1] == '\n') ) | |
3800 | { | |
3280af22 NIS |
3801 | PL_lex_formbrack = 0; |
3802 | PL_expect = XSTATE; | |
79072805 LW |
3803 | goto rightbracket; |
3804 | } | |
3280af22 | 3805 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
378cc40b | 3806 | tmp = *s++; |
a687059c LW |
3807 | if (*s == tmp) { |
3808 | s++; | |
2f3197b3 LW |
3809 | if (*s == tmp) { |
3810 | s++; | |
79072805 | 3811 | yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
3812 | } |
3813 | else | |
79072805 | 3814 | yylval.ival = 0; |
378cc40b | 3815 | OPERATOR(DOTDOT); |
a687059c | 3816 | } |
3280af22 | 3817 | if (PL_expect != XOPERATOR) |
2f3197b3 | 3818 | check_uni(); |
79072805 | 3819 | Aop(OP_CONCAT); |
378cc40b LW |
3820 | } |
3821 | /* FALL THROUGH */ | |
3822 | case '0': case '1': case '2': case '3': case '4': | |
3823 | case '5': case '6': case '7': case '8': case '9': | |
b73d6f50 | 3824 | s = scan_num(s, &yylval); |
4e553d73 | 3825 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
33426ec1 | 3826 | "### Saw number before '%s'\n", s); |
5f80b19c | 3827 | } ); |
3280af22 | 3828 | if (PL_expect == XOPERATOR) |
8990e307 | 3829 | no_op("Number",s); |
79072805 LW |
3830 | TERM(THING); |
3831 | ||
3832 | case '\'': | |
09bef843 | 3833 | s = scan_str(s,FALSE,FALSE); |
4e553d73 | 3834 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
207e3d1a | 3835 | "### Saw string before '%s'\n", s); |
5f80b19c | 3836 | } ); |
3280af22 NIS |
3837 | if (PL_expect == XOPERATOR) { |
3838 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
3839 | PL_expect = XTERM; | |
a0d0e21e | 3840 | depcom(); |
f31bfe61 | 3841 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 3842 | } |
463ee0b2 | 3843 | else |
8990e307 | 3844 | no_op("String",s); |
463ee0b2 | 3845 | } |
79072805 | 3846 | if (!s) |
85e6fe83 | 3847 | missingterm((char*)0); |
79072805 LW |
3848 | yylval.ival = OP_CONST; |
3849 | TERM(sublex_start()); | |
3850 | ||
3851 | case '"': | |
09bef843 | 3852 | s = scan_str(s,FALSE,FALSE); |
4e553d73 | 3853 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
207e3d1a | 3854 | "### Saw string before '%s'\n", s); |
5f80b19c | 3855 | } ); |
3280af22 NIS |
3856 | if (PL_expect == XOPERATOR) { |
3857 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
3858 | PL_expect = XTERM; | |
a0d0e21e | 3859 | depcom(); |
f31bfe61 | 3860 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 3861 | } |
463ee0b2 | 3862 | else |
8990e307 | 3863 | no_op("String",s); |
463ee0b2 | 3864 | } |
79072805 | 3865 | if (!s) |
85e6fe83 | 3866 | missingterm((char*)0); |
4633a7c4 | 3867 | yylval.ival = OP_CONST; |
3280af22 | 3868 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
63cd0674 | 3869 | if (*d == '$' || *d == '@' || *d == '\\' || !UTF8_IS_INVARIANT((U8)*d)) { |
4633a7c4 LW |
3870 | yylval.ival = OP_STRINGIFY; |
3871 | break; | |
3872 | } | |
3873 | } | |
79072805 LW |
3874 | TERM(sublex_start()); |
3875 | ||
3876 | case '`': | |
09bef843 | 3877 | s = scan_str(s,FALSE,FALSE); |
4e553d73 | 3878 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
207e3d1a | 3879 | "### Saw backtick string before '%s'\n", s); |
5f80b19c | 3880 | } ); |
3280af22 | 3881 | if (PL_expect == XOPERATOR) |
8990e307 | 3882 | no_op("Backticks",s); |
79072805 | 3883 | if (!s) |
85e6fe83 | 3884 | missingterm((char*)0); |
79072805 LW |
3885 | yylval.ival = OP_BACKTICK; |
3886 | set_csh(); | |
3887 | TERM(sublex_start()); | |
3888 | ||
3889 | case '\\': | |
3890 | s++; | |
599cee73 | 3891 | if (ckWARN(WARN_SYNTAX) && PL_lex_inwhat && isDIGIT(*s)) |
9014280d | 3892 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression", |
599cee73 | 3893 | *s, *s); |
3280af22 | 3894 | if (PL_expect == XOPERATOR) |
8990e307 | 3895 | no_op("Backslash",s); |
79072805 LW |
3896 | OPERATOR(REFGEN); |
3897 | ||
a7cb1f99 | 3898 | case 'v': |
e526c9e6 | 3899 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
24c2fff4 | 3900 | char *start = s + 2; |
dd629d5b | 3901 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
3902 | start++; |
3903 | if (*start == '.' && isDIGIT(start[1])) { | |
b73d6f50 | 3904 | s = scan_num(s, &yylval); |
a7cb1f99 GS |
3905 | TERM(THING); |
3906 | } | |
e526c9e6 | 3907 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
62ec34bd | 3908 | else if (!isALPHA(*start) && (PL_expect == XTERM || PL_expect == XREF || PL_expect == XSTATE)) { |
24c2fff4 | 3909 | const char c = *start; |
e526c9e6 GS |
3910 | GV *gv; |
3911 | *start = '\0'; | |
3912 | gv = gv_fetchpv(s, FALSE, SVt_PVCV); | |
3913 | *start = c; | |
3914 | if (!gv) { | |
b73d6f50 | 3915 | s = scan_num(s, &yylval); |
e526c9e6 GS |
3916 | TERM(THING); |
3917 | } | |
3918 | } | |
a7cb1f99 GS |
3919 | } |
3920 | goto keylookup; | |
79072805 | 3921 | case 'x': |
3280af22 | 3922 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
3923 | s++; |
3924 | Mop(OP_REPEAT); | |
2f3197b3 | 3925 | } |
79072805 LW |
3926 | goto keylookup; |
3927 | ||
378cc40b | 3928 | case '_': |
79072805 LW |
3929 | case 'a': case 'A': |
3930 | case 'b': case 'B': | |
3931 | case 'c': case 'C': | |
3932 | case 'd': case 'D': | |
3933 | case 'e': case 'E': | |
3934 | case 'f': case 'F': | |
3935 | case 'g': case 'G': | |
3936 | case 'h': case 'H': | |
3937 | case 'i': case 'I': | |
3938 | case 'j': case 'J': | |
3939 | case 'k': case 'K': | |
3940 | case 'l': case 'L': | |
3941 | case 'm': case 'M': | |
3942 | case 'n': case 'N': | |
3943 | case 'o': case 'O': | |
3944 | case 'p': case 'P': | |
3945 | case 'q': case 'Q': | |
3946 | case 'r': case 'R': | |
3947 | case 's': case 'S': | |
3948 | case 't': case 'T': | |
3949 | case 'u': case 'U': | |
a7cb1f99 | 3950 | case 'V': |
79072805 LW |
3951 | case 'w': case 'W': |
3952 | case 'X': | |
3953 | case 'y': case 'Y': | |
3954 | case 'z': case 'Z': | |
3955 | ||
49dc05e3 | 3956 | keylookup: { |
bda19f49 | 3957 | orig_keyword = 0; |
161b471a NIS |
3958 | gv = Nullgv; |
3959 | gvp = 0; | |
49dc05e3 | 3960 | |
3280af22 NIS |
3961 | PL_bufptr = s; |
3962 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 3963 | |
3964 | /* Some keywords can be followed by any delimiter, including ':' */ | |
155aba94 GS |
3965 | tmp = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
3966 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || | |
3967 | (PL_tokenbuf[0] == 'q' && | |
3968 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 3969 | |
3970 | /* x::* is just a word, unless x is "CORE" */ | |
3280af22 | 3971 | if (!tmp && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
3972 | goto just_a_word; |
3973 | ||
3643fb5f | 3974 | d = s; |
3280af22 | 3975 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
3976 | d++; /* no comments skipped here, or s### is misparsed */ |
3977 | ||
3978 | /* Is this a label? */ | |
3280af22 NIS |
3979 | if (!tmp && PL_expect == XSTATE |
3980 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
8ebc5c01 | 3981 | s = d + 1; |
3280af22 | 3982 | yylval.pval = savepv(PL_tokenbuf); |
8ebc5c01 | 3983 | CLINE; |
3984 | TOKEN(LABEL); | |
3643fb5f CS |
3985 | } |
3986 | ||
3987 | /* Check for keywords */ | |
3280af22 | 3988 | tmp = keyword(PL_tokenbuf, len); |
748a9306 LW |
3989 | |
3990 | /* Is this a word before a => operator? */ | |
1c3923b3 | 3991 | if (*d == '=' && d[1] == '>') { |
748a9306 | 3992 | CLINE; |
3280af22 | 3993 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf,0)); |
748a9306 | 3994 | yylval.opval->op_private = OPpCONST_BARE; |
0064a8a9 | 3995 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
7948272d | 3996 | SvUTF8_on(((SVOP*)yylval.opval)->op_sv); |
748a9306 LW |
3997 | TERM(WORD); |
3998 | } | |
3999 | ||
a0d0e21e | 4000 | if (tmp < 0) { /* second-class keyword? */ |
56f7f34b CS |
4001 | GV *ogv = Nullgv; /* override (winner) */ |
4002 | GV *hgv = Nullgv; /* hidden (loser) */ | |
3280af22 | 4003 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 4004 | CV *cv; |
3280af22 | 4005 | if ((gv = gv_fetchpv(PL_tokenbuf, FALSE, SVt_PVCV)) && |
56f7f34b CS |
4006 | (cv = GvCVu(gv))) |
4007 | { | |
4008 | if (GvIMPORTED_CV(gv)) | |
4009 | ogv = gv; | |
4010 | else if (! CvMETHOD(cv)) | |
4011 | hgv = gv; | |
4012 | } | |
4013 | if (!ogv && | |
3280af22 NIS |
4014 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
4015 | (gv = *gvp) != (GV*)&PL_sv_undef && | |
56f7f34b CS |
4016 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
4017 | { | |
4018 | ogv = gv; | |
4019 | } | |
4020 | } | |
4021 | if (ogv) { | |
5b7ea690 | 4022 | orig_keyword = tmp; |
56f7f34b | 4023 | tmp = 0; /* overridden by import or by GLOBAL */ |
6e7b2336 GS |
4024 | } |
4025 | else if (gv && !gvp | |
4026 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
d0456cad | 4027 | && GvCVu(gv) |
3280af22 | 4028 | && !hv_fetch(GvHVn(PL_incgv), "Thread.pm", 9, FALSE)) |
6e7b2336 GS |
4029 | { |
4030 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 4031 | } |
56f7f34b CS |
4032 | else { /* no override */ |
4033 | tmp = -tmp; | |
ac206dc8 | 4034 | if (tmp == KEY_dump && ckWARN(WARN_MISC)) { |
9014280d | 4035 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
ac206dc8 RGS |
4036 | "dump() better written as CORE::dump()"); |
4037 | } | |
56f7f34b CS |
4038 | gv = Nullgv; |
4039 | gvp = 0; | |
4944e2f7 GS |
4040 | if (ckWARN(WARN_AMBIGUOUS) && hgv |
4041 | && tmp != KEY_x && tmp != KEY_CORE) /* never ambiguous */ | |
9014280d | 4042 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 4043 | "Ambiguous call resolved as CORE::%s(), %s", |
2f3ca594 | 4044 | GvENAME(hgv), "qualify as such or use &"); |
49dc05e3 | 4045 | } |
a0d0e21e LW |
4046 | } |
4047 | ||
4048 | reserved_word: | |
4049 | switch (tmp) { | |
79072805 LW |
4050 | |
4051 | default: /* not a keyword */ | |
93a17b20 | 4052 | just_a_word: { |
96e4d5b1 | 4053 | SV *sv; |
ce29ac45 | 4054 | int pkgname = 0; |
24c2fff4 | 4055 | const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
8990e307 LW |
4056 | |
4057 | /* Get the rest if it looks like a package qualifier */ | |
4058 | ||
155aba94 | 4059 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 4060 | STRLEN morelen; |
3280af22 | 4061 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
4062 | TRUE, &morelen); |
4063 | if (!morelen) | |
cea2e8a9 | 4064 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 4065 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 4066 | len += morelen; |
ce29ac45 | 4067 | pkgname = 1; |
a0d0e21e | 4068 | } |
8990e307 | 4069 | |
3280af22 NIS |
4070 | if (PL_expect == XOPERATOR) { |
4071 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 4072 | CopLINE_dec(PL_curcop); |
9014280d | 4073 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 4074 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
4075 | } |
4076 | else | |
54310121 | 4077 | no_op("Bareword",s); |
463ee0b2 | 4078 | } |
8990e307 | 4079 | |
c3e0f903 GS |
4080 | /* Look for a subroutine with this name in current package, |
4081 | unless name is "Foo::", in which case Foo is a bearword | |
4082 | (and a package name). */ | |
4083 | ||
4084 | if (len > 2 && | |
3280af22 | 4085 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 4086 | { |
e476b1b5 | 4087 | if (ckWARN(WARN_BAREWORD) && ! gv_fetchpv(PL_tokenbuf, FALSE, SVt_PVHV)) |
9014280d | 4088 | Perl_warner(aTHX_ packWARN(WARN_BAREWORD), |
599cee73 | 4089 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 4090 | PL_tokenbuf); |
c3e0f903 | 4091 | len -= 2; |
3280af22 | 4092 | PL_tokenbuf[len] = '\0'; |
c3e0f903 GS |
4093 | gv = Nullgv; |
4094 | gvp = 0; | |
4095 | } | |
4096 | else { | |
4097 | len = 0; | |
4098 | if (!gv) | |
3280af22 | 4099 | gv = gv_fetchpv(PL_tokenbuf, FALSE, SVt_PVCV); |
c3e0f903 GS |
4100 | } |
4101 | ||
4102 | /* if we saw a global override before, get the right name */ | |
8990e307 | 4103 | |
49dc05e3 | 4104 | if (gvp) { |
79cb57f6 | 4105 | sv = newSVpvn("CORE::GLOBAL::",14); |
3280af22 | 4106 | sv_catpv(sv,PL_tokenbuf); |
49dc05e3 | 4107 | } |
04851bb3 NC |
4108 | else { |
4109 | /* If len is 0, newSVpv does strlen(), which is correct. | |
4110 | If len is non-zero, then it will be the true length, | |
4111 | and so the scalar will be created correctly. */ | |
4112 | sv = newSVpv(PL_tokenbuf,len); | |
4113 | } | |
8990e307 | 4114 | |
a0d0e21e LW |
4115 | /* Presume this is going to be a bareword of some sort. */ |
4116 | ||
4117 | CLINE; | |
49dc05e3 | 4118 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
a0d0e21e | 4119 | yylval.opval->op_private = OPpCONST_BARE; |
8f8cf39c JH |
4120 | /* UTF-8 package name? */ |
4121 | if (UTF && !IN_BYTES && | |
5e7e76a3 | 4122 | is_utf8_string((U8*)SvPVX_const(sv), SvCUR(sv))) |
8f8cf39c | 4123 | SvUTF8_on(sv); |
a0d0e21e | 4124 | |
c3e0f903 GS |
4125 | /* And if "Foo::", then that's what it certainly is. */ |
4126 | ||
4127 | if (len) | |
4128 | goto safe_bareword; | |
4129 | ||
8990e307 LW |
4130 | /* See if it's the indirect object for a list operator. */ |
4131 | ||
3280af22 NIS |
4132 | if (PL_oldoldbufptr && |
4133 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
4134 | (PL_oldoldbufptr == PL_last_lop |
4135 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 4136 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
4137 | (PL_expect == XREF || |
4138 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 4139 | { |
748a9306 LW |
4140 | bool immediate_paren = *s == '('; |
4141 | ||
a0d0e21e LW |
4142 | /* (Now we can afford to cross potential line boundary.) */ |
4143 | s = skipspace(s); | |
4144 | ||
4145 | /* Two barewords in a row may indicate method call. */ | |
4146 | ||
7e2040f0 | 4147 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && (tmp=intuit_method(s,gv))) |
f31bfe61 | 4148 | return REPORT(tmp); |
a0d0e21e LW |
4149 | |
4150 | /* If not a declared subroutine, it's an indirect object. */ | |
4151 | /* (But it's an indir obj regardless for sort.) */ | |
4152 | ||
7948272d | 4153 | if ( !immediate_paren && (PL_last_lop_op == OP_SORT || |
f0670693 | 4154 | ((!gv || !GvCVu(gv)) && |
a9ef352a | 4155 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 4156 | PL_last_lop_op != OP_GREPSTART)))) |
a9ef352a | 4157 | { |
3280af22 | 4158 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 4159 | goto bareword; |
93a17b20 LW |
4160 | } |
4161 | } | |
8990e307 | 4162 | |
3280af22 | 4163 | PL_expect = XOPERATOR; |
8990e307 | 4164 | s = skipspace(s); |
1c3923b3 GS |
4165 | |
4166 | /* Is this a word before a => operator? */ | |
ce29ac45 | 4167 | if (*s == '=' && s[1] == '>' && !pkgname) { |
1c3923b3 GS |
4168 | CLINE; |
4169 | sv_setpv(((SVOP*)yylval.opval)->op_sv, PL_tokenbuf); | |
0064a8a9 | 4170 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
7948272d | 4171 | SvUTF8_on(((SVOP*)yylval.opval)->op_sv); |
1c3923b3 GS |
4172 | TERM(WORD); |
4173 | } | |
4174 | ||
4175 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 4176 | if (*s == '(') { |
79072805 | 4177 | CLINE; |
96e4d5b1 | 4178 | if (gv && GvCVu(gv)) { |
bf4acbe4 | 4179 | for (d = s + 1; SPACE_OR_TAB(*d); d++) ; |
7a52d87a | 4180 | if (*d == ')' && (sv = cv_const_sv(GvCV(gv)))) { |
96e4d5b1 | 4181 | s = d + 1; |
4182 | goto its_constant; | |
4183 | } | |
4184 | } | |
3280af22 NIS |
4185 | PL_nextval[PL_nexttoke].opval = yylval.opval; |
4186 | PL_expect = XOPERATOR; | |
93a17b20 | 4187 | force_next(WORD); |
c07a80fd | 4188 | yylval.ival = 0; |
463ee0b2 | 4189 | TOKEN('&'); |
79072805 | 4190 | } |
93a17b20 | 4191 | |
a0d0e21e | 4192 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 4193 | |
8ebc5c01 | 4194 | if ((*s == '$' || *s == '{') && (!gv || !GvCVu(gv))) { |
3280af22 NIS |
4195 | PL_last_lop = PL_oldbufptr; |
4196 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 4197 | PREBLOCK(METHOD); |
463ee0b2 LW |
4198 | } |
4199 | ||
8990e307 LW |
4200 | /* If followed by a bareword, see if it looks like indir obj. */ |
4201 | ||
5b7ea690 JH |
4202 | if (!orig_keyword |
4203 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
4204 | && (tmp = intuit_method(s,gv))) | |
f31bfe61 | 4205 | return REPORT(tmp); |
93a17b20 | 4206 | |
8990e307 LW |
4207 | /* Not a method, so call it a subroutine (if defined) */ |
4208 | ||
8ebc5c01 | 4209 | if (gv && GvCVu(gv)) { |
46fc3d4c | 4210 | CV* cv; |
0453d815 | 4211 | if (lastchar == '-' && ckWARN_d(WARN_AMBIGUOUS)) |
9014280d | 4212 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 4213 | "Ambiguous use of -%s resolved as -&%s()", |
3280af22 | 4214 | PL_tokenbuf, PL_tokenbuf); |
89bfa8cd | 4215 | /* Check for a constant sub */ |
46fc3d4c | 4216 | cv = GvCV(gv); |
96e4d5b1 | 4217 | if ((sv = cv_const_sv(cv))) { |
4218 | its_constant: | |
4219 | SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv); | |
4220 | ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc(sv); | |
4221 | yylval.opval->op_private = 0; | |
4222 | TOKEN(WORD); | |
89bfa8cd | 4223 | } |
4224 | ||
a5f75d66 AD |
4225 | /* Resolve to GV now. */ |
4226 | op_free(yylval.opval); | |
4227 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
9675f7ac | 4228 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
7a52d87a | 4229 | PL_last_lop = PL_oldbufptr; |
bf848113 | 4230 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 LW |
4231 | /* Is there a prototype? */ |
4232 | if (SvPOK(cv)) { | |
4233 | STRLEN len; | |
7a52d87a | 4234 | char *proto = SvPV((SV*)cv, len); |
4633a7c4 LW |
4235 | if (!len) |
4236 | TERM(FUNC0SUB); | |
29652248 | 4237 | if (*proto == '$' && proto[1] == '\0') |
4633a7c4 | 4238 | OPERATOR(UNIOPSUB); |
750300e4 JH |
4239 | while (*proto == ';') |
4240 | proto++; | |
7a52d87a | 4241 | if (*proto == '&' && *s == '{') { |
a00f3e00 | 4242 | sv_setpv(PL_subname, PL_curstash ? |
c99da370 | 4243 | "__ANON__" : "__ANON__::__ANON__"); |
4633a7c4 LW |
4244 | PREBLOCK(LSTOPSUB); |
4245 | } | |
a9ef352a | 4246 | } |
3280af22 NIS |
4247 | PL_nextval[PL_nexttoke].opval = yylval.opval; |
4248 | PL_expect = XTERM; | |
8990e307 LW |
4249 | force_next(WORD); |
4250 | TOKEN(NOAMP); | |
4251 | } | |
748a9306 | 4252 | |
8990e307 LW |
4253 | /* Call it a bare word */ |
4254 | ||
5603f27d GS |
4255 | if (PL_hints & HINT_STRICT_SUBS) |
4256 | yylval.opval->op_private |= OPpCONST_STRICT; | |
4257 | else { | |
4258 | bareword: | |
4259 | if (ckWARN(WARN_RESERVED)) { | |
4260 | if (lastchar != '-') { | |
4261 | for (d = PL_tokenbuf; *d && isLOWER(*d); d++) ; | |
238ae712 | 4262 | if (!*d && !gv_stashpv(PL_tokenbuf,FALSE)) |
9014280d | 4263 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
4264 | PL_tokenbuf); |
4265 | } | |
748a9306 LW |
4266 | } |
4267 | } | |
c3e0f903 GS |
4268 | |
4269 | safe_bareword: | |
3c71ae1e NC |
4270 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&') |
4271 | && ckWARN_d(WARN_AMBIGUOUS)) { | |
9014280d | 4272 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 4273 | "Operator or semicolon missing before %c%s", |
3280af22 | 4274 | lastchar, PL_tokenbuf); |
9014280d | 4275 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 4276 | "Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
4277 | lastchar, lastchar); |
4278 | } | |
93a17b20 | 4279 | TOKEN(WORD); |
79072805 | 4280 | } |
79072805 | 4281 | |
68dc0745 | 4282 | case KEY___FILE__: |
46fc3d4c | 4283 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 4284 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 4285 | TERM(THING); |
4286 | ||
79072805 | 4287 | case KEY___LINE__: |
cf2093f6 | 4288 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 4289 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 4290 | TERM(THING); |
68dc0745 | 4291 | |
4292 | case KEY___PACKAGE__: | |
4293 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, | |
3280af22 | 4294 | (PL_curstash |
26ab6a78 | 4295 | ? newSVpv(HvNAME_get(PL_curstash), 0) |
3280af22 | 4296 | : &PL_sv_undef)); |
79072805 | 4297 | TERM(THING); |
79072805 | 4298 | |
e50aee73 | 4299 | case KEY___DATA__: |
79072805 LW |
4300 | case KEY___END__: { |
4301 | GV *gv; | |
79072805 LW |
4302 | |
4303 | /*SUPPRESS 560*/ | |
3280af22 | 4304 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
a00f3e00 | 4305 | const char *pname = "main"; |
3280af22 | 4306 | if (PL_tokenbuf[2] == 'D') |
26ab6a78 | 4307 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
cea2e8a9 | 4308 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), TRUE, SVt_PVIO); |
a5f75d66 | 4309 | GvMULTI_on(gv); |
79072805 | 4310 | if (!GvIO(gv)) |
a0d0e21e | 4311 | GvIOp(gv) = newIO(); |
3280af22 | 4312 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
4313 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
4314 | { | |
24c2fff4 | 4315 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
4316 | fcntl(fd,F_SETFD,fd >= 3); |
4317 | } | |
79072805 | 4318 | #endif |
fd049845 | 4319 | /* Mark this internal pseudo-handle as clean */ |
4320 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
3280af22 | 4321 | if (PL_preprocess) |
50952442 | 4322 | IoTYPE(GvIOp(gv)) = IoTYPE_PIPE; |
3280af22 | 4323 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 4324 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 4325 | else |
50952442 | 4326 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
4327 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
4328 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 4329 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 4330 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
4331 | if (PL_bufend-PL_bufptr > 2 |
4332 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
4333 | { |
4334 | Off_t loc = 0; | |
50952442 | 4335 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
4336 | loc = PerlIO_tell(PL_rsfp); |
4337 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
4338 | } | |
2986a63f JH |
4339 | #ifdef NETWARE |
4340 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
4341 | #else | |
c39cd008 | 4342 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 4343 | #endif /* NETWARE */ |
1143fce0 JH |
4344 | #ifdef PERLIO_IS_STDIO /* really? */ |
4345 | # if defined(__BORLANDC__) | |
cb359b41 JH |
4346 | /* XXX see note in do_binmode() */ |
4347 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
4348 | # endif |
4349 | #endif | |
c39cd008 GS |
4350 | if (loc > 0) |
4351 | PerlIO_seek(PL_rsfp, loc, 0); | |
4352 | } | |
4353 | } | |
4354 | #endif | |
7948272d | 4355 | #ifdef PERLIO_LAYERS |
d34f9d2e JH |
4356 | if (!IN_BYTES) { |
4357 | if (UTF) | |
4358 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
4359 | else if (PL_encoding) { | |
4360 | SV *name; | |
4361 | dSP; | |
4362 | ENTER; | |
4363 | SAVETMPS; | |
4364 | PUSHMARK(sp); | |
4365 | EXTEND(SP, 1); | |
4366 | XPUSHs(PL_encoding); | |
4367 | PUTBACK; | |
4368 | call_method("name", G_SCALAR); | |
4369 | SPAGAIN; | |
4370 | name = POPs; | |
4371 | PUTBACK; | |
a00f3e00 | 4372 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
d34f9d2e JH |
4373 | Perl_form(aTHX_ ":encoding(%"SVf")", |
4374 | name)); | |
4375 | FREETMPS; | |
4376 | LEAVE; | |
4377 | } | |
4378 | } | |
7948272d | 4379 | #endif |
3280af22 | 4380 | PL_rsfp = Nullfp; |
79072805 LW |
4381 | } |
4382 | goto fake_eof; | |
e929a76b | 4383 | } |
de3bb511 | 4384 | |
8990e307 | 4385 | case KEY_AUTOLOAD: |
ed6116ce | 4386 | case KEY_DESTROY: |
79072805 | 4387 | case KEY_BEGIN: |
7d30b5c4 | 4388 | case KEY_CHECK: |
7d07dbc2 | 4389 | case KEY_INIT: |
7d30b5c4 | 4390 | case KEY_END: |
3280af22 NIS |
4391 | if (PL_expect == XSTATE) { |
4392 | s = PL_bufptr; | |
93a17b20 | 4393 | goto really_sub; |
79072805 LW |
4394 | } |
4395 | goto just_a_word; | |
4396 | ||
a0d0e21e LW |
4397 | case KEY_CORE: |
4398 | if (*s == ':' && s[1] == ':') { | |
4399 | s += 2; | |
748a9306 | 4400 | d = s; |
3280af22 | 4401 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
6798c92b GS |
4402 | if (!(tmp = keyword(PL_tokenbuf, len))) |
4403 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); | |
a0d0e21e LW |
4404 | if (tmp < 0) |
4405 | tmp = -tmp; | |
4406 | goto reserved_word; | |
4407 | } | |
4408 | goto just_a_word; | |
4409 | ||
463ee0b2 LW |
4410 | case KEY_abs: |
4411 | UNI(OP_ABS); | |
4412 | ||
79072805 LW |
4413 | case KEY_alarm: |
4414 | UNI(OP_ALARM); | |
4415 | ||
4416 | case KEY_accept: | |
a0d0e21e | 4417 | LOP(OP_ACCEPT,XTERM); |
79072805 | 4418 | |
463ee0b2 LW |
4419 | case KEY_and: |
4420 | OPERATOR(ANDOP); | |
4421 | ||
79072805 | 4422 | case KEY_atan2: |
a0d0e21e | 4423 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 4424 | |
79072805 | 4425 | case KEY_bind: |
a0d0e21e | 4426 | LOP(OP_BIND,XTERM); |
79072805 LW |
4427 | |
4428 | case KEY_binmode: | |
1c1fc3ea | 4429 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
4430 | |
4431 | case KEY_bless: | |
a0d0e21e | 4432 | LOP(OP_BLESS,XTERM); |
79072805 LW |
4433 | |
4434 | case KEY_chop: | |
4435 | UNI(OP_CHOP); | |
4436 | ||
4437 | case KEY_continue: | |
4438 | PREBLOCK(CONTINUE); | |
4439 | ||
4440 | case KEY_chdir: | |
85e6fe83 | 4441 | (void)gv_fetchpv("ENV",TRUE, SVt_PVHV); /* may use HOME */ |
79072805 LW |
4442 | UNI(OP_CHDIR); |
4443 | ||
4444 | case KEY_close: | |
4445 | UNI(OP_CLOSE); | |
4446 | ||
4447 | case KEY_closedir: | |
4448 | UNI(OP_CLOSEDIR); | |
4449 | ||
4450 | case KEY_cmp: | |
4451 | Eop(OP_SCMP); | |
4452 | ||
4453 | case KEY_caller: | |
4454 | UNI(OP_CALLER); | |
4455 | ||
4456 | case KEY_crypt: | |
4457 | #ifdef FCRYPT | |
f4c556ac GS |
4458 | if (!PL_cryptseen) { |
4459 | PL_cryptseen = TRUE; | |
de3bb511 | 4460 | init_des(); |
f4c556ac | 4461 | } |
a687059c | 4462 | #endif |
a0d0e21e | 4463 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
4464 | |
4465 | case KEY_chmod: | |
a0d0e21e | 4466 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
4467 | |
4468 | case KEY_chown: | |
a0d0e21e | 4469 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
4470 | |
4471 | case KEY_connect: | |
a0d0e21e | 4472 | LOP(OP_CONNECT,XTERM); |
79072805 | 4473 | |
463ee0b2 LW |
4474 | case KEY_chr: |
4475 | UNI(OP_CHR); | |
4476 | ||
79072805 LW |
4477 | case KEY_cos: |
4478 | UNI(OP_COS); | |
4479 | ||
4480 | case KEY_chroot: | |
4481 | UNI(OP_CHROOT); | |
4482 | ||
4483 | case KEY_do: | |
4484 | s = skipspace(s); | |
4485 | if (*s == '{') | |
a0d0e21e | 4486 | PRETERMBLOCK(DO); |
79072805 | 4487 | if (*s != '\'') |
89c5585f | 4488 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
378cc40b | 4489 | OPERATOR(DO); |
79072805 LW |
4490 | |
4491 | case KEY_die: | |
3280af22 | 4492 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 4493 | LOP(OP_DIE,XTERM); |
79072805 LW |
4494 | |
4495 | case KEY_defined: | |
4496 | UNI(OP_DEFINED); | |
4497 | ||
4498 | case KEY_delete: | |
a0d0e21e | 4499 | UNI(OP_DELETE); |
79072805 LW |
4500 | |
4501 | case KEY_dbmopen: | |
a0d0e21e LW |
4502 | gv_fetchpv("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
4503 | LOP(OP_DBMOPEN,XTERM); | |
79072805 LW |
4504 | |
4505 | case KEY_dbmclose: | |
4506 | UNI(OP_DBMCLOSE); | |
4507 | ||
4508 | case KEY_dump: | |
a0d0e21e | 4509 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
4510 | LOOPX(OP_DUMP); |
4511 | ||
4512 | case KEY_else: | |
4513 | PREBLOCK(ELSE); | |
4514 | ||
4515 | case KEY_elsif: | |
57843af0 | 4516 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
4517 | OPERATOR(ELSIF); |
4518 | ||
4519 | case KEY_eq: | |
4520 | Eop(OP_SEQ); | |
4521 | ||
a0d0e21e LW |
4522 | case KEY_exists: |
4523 | UNI(OP_EXISTS); | |
4e553d73 | 4524 | |
79072805 LW |
4525 | case KEY_exit: |
4526 | UNI(OP_EXIT); | |
4527 | ||
4528 | case KEY_eval: | |
79072805 | 4529 | s = skipspace(s); |
3280af22 | 4530 | PL_expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 4531 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
4532 | |
4533 | case KEY_eof: | |
4534 | UNI(OP_EOF); | |
4535 | ||
4536 | case KEY_exp: | |
4537 | UNI(OP_EXP); | |
4538 | ||
4539 | case KEY_each: | |
4540 | UNI(OP_EACH); | |
4541 | ||
4542 | case KEY_exec: | |
4543 | set_csh(); | |
a0d0e21e | 4544 | LOP(OP_EXEC,XREF); |
79072805 LW |
4545 | |
4546 | case KEY_endhostent: | |
4547 | FUN0(OP_EHOSTENT); | |
4548 | ||
4549 | case KEY_endnetent: | |
4550 | FUN0(OP_ENETENT); | |
4551 | ||
4552 | case KEY_endservent: | |
4553 | FUN0(OP_ESERVENT); | |
4554 | ||
4555 | case KEY_endprotoent: | |
4556 | FUN0(OP_EPROTOENT); | |
4557 | ||
4558 | case KEY_endpwent: | |
4559 | FUN0(OP_EPWENT); | |
4560 | ||
4561 | case KEY_endgrent: | |
4562 | FUN0(OP_EGRENT); | |
4563 | ||
4564 | case KEY_for: | |
4565 | case KEY_foreach: | |
57843af0 | 4566 | yylval.ival = CopLINE(PL_curcop); |
55497cff | 4567 | s = skipspace(s); |
7e2040f0 | 4568 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 4569 | char *p = s; |
3280af22 | 4570 | if ((PL_bufend - p) >= 3 && |
55497cff | 4571 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
4572 | p += 2; | |
77ca0c92 LW |
4573 | else if ((PL_bufend - p) >= 4 && |
4574 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
4575 | p += 3; | |
55497cff | 4576 | p = skipspace(p); |
7e2040f0 | 4577 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
4578 | p = scan_ident(p, PL_bufend, |
4579 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
4580 | p = skipspace(p); | |
4581 | } | |
4582 | if (*p != '$') | |
cea2e8a9 | 4583 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
55497cff | 4584 | } |
79072805 LW |
4585 | OPERATOR(FOR); |
4586 | ||
4587 | case KEY_formline: | |
a0d0e21e | 4588 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
4589 | |
4590 | case KEY_fork: | |
4591 | FUN0(OP_FORK); | |
4592 | ||
4593 | case KEY_fcntl: | |
a0d0e21e | 4594 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
4595 | |
4596 | case KEY_fileno: | |
4597 | UNI(OP_FILENO); | |
4598 | ||
4599 | case KEY_flock: | |
a0d0e21e | 4600 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
4601 | |
4602 | case KEY_gt: | |
4603 | Rop(OP_SGT); | |
4604 | ||
4605 | case KEY_ge: | |
4606 | Rop(OP_SGE); | |
4607 | ||
4608 | case KEY_grep: | |
2c38e13d | 4609 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
4610 | |
4611 | case KEY_goto: | |
a0d0e21e | 4612 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
4613 | LOOPX(OP_GOTO); |
4614 | ||
4615 | case KEY_gmtime: | |
4616 | UNI(OP_GMTIME); | |
4617 | ||
4618 | case KEY_getc: | |
4619 | UNI(OP_GETC); | |
4620 | ||
4621 | case KEY_getppid: | |
4622 | FUN0(OP_GETPPID); | |
4623 | ||
4624 | case KEY_getpgrp: | |
4625 | UNI(OP_GETPGRP); | |
4626 | ||
4627 | case KEY_getpriority: | |
a0d0e21e | 4628 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
4629 | |
4630 | case KEY_getprotobyname: | |
4631 | UNI(OP_GPBYNAME); | |
4632 | ||
4633 | case KEY_getprotobynumber: | |
a0d0e21e | 4634 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
4635 | |
4636 | case KEY_getprotoent: | |
4637 | FUN0(OP_GPROTOENT); | |
4638 | ||
4639 | case KEY_getpwent: | |
4640 | FUN0(OP_GPWENT); | |
4641 | ||
4642 | case KEY_getpwnam: | |
ff68c719 | 4643 | UNI(OP_GPWNAM); |
79072805 LW |
4644 | |
4645 | case KEY_getpwuid: | |
ff68c719 | 4646 | UNI(OP_GPWUID); |
79072805 LW |
4647 | |
4648 | case KEY_getpeername: | |
4649 | UNI(OP_GETPEERNAME); | |
4650 | ||
4651 | case KEY_gethostbyname: | |
4652 | UNI(OP_GHBYNAME); | |
4653 | ||
4654 | case KEY_gethostbyaddr: | |
a0d0e21e | 4655 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
4656 | |
4657 | case KEY_gethostent: | |
4658 | FUN0(OP_GHOSTENT); | |
4659 | ||
4660 | case KEY_getnetbyname: | |
4661 | UNI(OP_GNBYNAME); | |
4662 | ||
4663 | case KEY_getnetbyaddr: | |
a0d0e21e | 4664 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
4665 | |
4666 | case KEY_getnetent: | |
4667 | FUN0(OP_GNETENT); | |
4668 | ||
4669 | case KEY_getservbyname: | |
a0d0e21e | 4670 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
4671 | |
4672 | case KEY_getservbyport: | |
a0d0e21e | 4673 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
4674 | |
4675 | case KEY_getservent: | |
4676 | FUN0(OP_GSERVENT); | |
4677 | ||
4678 | case KEY_getsockname: | |
4679 | UNI(OP_GETSOCKNAME); | |
4680 | ||
4681 | case KEY_getsockopt: | |
a0d0e21e | 4682 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
4683 | |
4684 | case KEY_getgrent: | |
4685 | FUN0(OP_GGRENT); | |
4686 | ||
4687 | case KEY_getgrnam: | |
ff68c719 | 4688 | UNI(OP_GGRNAM); |
79072805 LW |
4689 | |
4690 | case KEY_getgrgid: | |
ff68c719 | 4691 | UNI(OP_GGRGID); |
79072805 LW |
4692 | |
4693 | case KEY_getlogin: | |
4694 | FUN0(OP_GETLOGIN); | |
4695 | ||
93a17b20 | 4696 | case KEY_glob: |
a0d0e21e LW |
4697 | set_csh(); |
4698 | LOP(OP_GLOB,XTERM); | |
93a17b20 | 4699 | |
79072805 LW |
4700 | case KEY_hex: |
4701 | UNI(OP_HEX); | |
4702 | ||
4703 | case KEY_if: | |
57843af0 | 4704 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
4705 | OPERATOR(IF); |
4706 | ||
4707 | case KEY_index: | |
a0d0e21e | 4708 | LOP(OP_INDEX,XTERM); |
79072805 LW |
4709 | |
4710 | case KEY_int: | |
4711 | UNI(OP_INT); | |
4712 | ||
4713 | case KEY_ioctl: | |
a0d0e21e | 4714 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
4715 | |
4716 | case KEY_join: | |
a0d0e21e | 4717 | LOP(OP_JOIN,XTERM); |
79072805 LW |
4718 | |
4719 | case KEY_keys: | |
4720 | UNI(OP_KEYS); | |
4721 | ||
4722 | case KEY_kill: | |
a0d0e21e | 4723 | LOP(OP_KILL,XTERM); |
79072805 LW |
4724 | |
4725 | case KEY_last: | |
a0d0e21e | 4726 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 4727 | LOOPX(OP_LAST); |
4e553d73 | 4728 | |
79072805 LW |
4729 | case KEY_lc: |
4730 | UNI(OP_LC); | |
4731 | ||
4732 | case KEY_lcfirst: | |
4733 | UNI(OP_LCFIRST); | |
4734 | ||
4735 | case KEY_local: | |
09bef843 | 4736 | yylval.ival = 0; |
79072805 LW |
4737 | OPERATOR(LOCAL); |
4738 | ||
4739 | case KEY_length: | |
4740 | UNI(OP_LENGTH); | |
4741 | ||
4742 | case KEY_lt: | |
4743 | Rop(OP_SLT); | |
4744 | ||
4745 | case KEY_le: | |
4746 | Rop(OP_SLE); | |
4747 | ||
4748 | case KEY_localtime: | |
4749 | UNI(OP_LOCALTIME); | |
4750 | ||
4751 | case KEY_log: | |
4752 | UNI(OP_LOG); | |
4753 | ||
4754 | case KEY_link: | |
a0d0e21e | 4755 | LOP(OP_LINK,XTERM); |
79072805 LW |
4756 | |
4757 | case KEY_listen: | |
a0d0e21e | 4758 | LOP(OP_LISTEN,XTERM); |
79072805 | 4759 | |
c0329465 MB |
4760 | case KEY_lock: |
4761 | UNI(OP_LOCK); | |
4762 | ||
79072805 LW |
4763 | case KEY_lstat: |
4764 | UNI(OP_LSTAT); | |
4765 | ||
4766 | case KEY_m: | |
8782bef2 | 4767 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
4768 | TERM(sublex_start()); |
4769 | ||
a0d0e21e | 4770 | case KEY_map: |
2c38e13d | 4771 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 4772 | |
79072805 | 4773 | case KEY_mkdir: |
a0d0e21e | 4774 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
4775 | |
4776 | case KEY_msgctl: | |
a0d0e21e | 4777 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
4778 | |
4779 | case KEY_msgget: | |
a0d0e21e | 4780 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
4781 | |
4782 | case KEY_msgrcv: | |
a0d0e21e | 4783 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
4784 | |
4785 | case KEY_msgsnd: | |
a0d0e21e | 4786 | LOP(OP_MSGSND,XTERM); |
79072805 | 4787 | |
77ca0c92 | 4788 | case KEY_our: |
93a17b20 | 4789 | case KEY_my: |
77ca0c92 | 4790 | PL_in_my = tmp; |
c750a3ec | 4791 | s = skipspace(s); |
7e2040f0 | 4792 | if (isIDFIRST_lazy_if(s,UTF)) { |
3280af22 | 4793 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
4794 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
4795 | goto really_sub; | |
def3634b | 4796 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 4797 | if (!PL_in_my_stash) { |
c750a3ec | 4798 | char tmpbuf[1024]; |
3280af22 NIS |
4799 | PL_bufptr = s; |
4800 | sprintf(tmpbuf, "No such class %.1000s", PL_tokenbuf); | |
c750a3ec MB |
4801 | yyerror(tmpbuf); |
4802 | } | |
4803 | } | |
09bef843 | 4804 | yylval.ival = 1; |
55497cff | 4805 | OPERATOR(MY); |
93a17b20 | 4806 | |
79072805 | 4807 | case KEY_next: |
a0d0e21e | 4808 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
4809 | LOOPX(OP_NEXT); |
4810 | ||
4811 | case KEY_ne: | |
4812 | Eop(OP_SNE); | |
4813 | ||
a0d0e21e | 4814 | case KEY_no: |
3280af22 | 4815 | if (PL_expect != XSTATE) |
a0d0e21e LW |
4816 | yyerror("\"no\" not allowed in expression"); |
4817 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
e759cc13 | 4818 | s = force_version(s, FALSE); |
a0d0e21e LW |
4819 | yylval.ival = 0; |
4820 | OPERATOR(USE); | |
4821 | ||
4822 | case KEY_not: | |
2d2e263d LW |
4823 | if (*s == '(' || (s = skipspace(s), *s == '(')) |
4824 | FUN1(OP_NOT); | |
4825 | else | |
4826 | OPERATOR(NOTOP); | |
a0d0e21e | 4827 | |
79072805 | 4828 | case KEY_open: |
93a17b20 | 4829 | s = skipspace(s); |
7e2040f0 | 4830 | if (isIDFIRST_lazy_if(s,UTF)) { |
24c2fff4 | 4831 | const char *t; |
7e2040f0 | 4832 | for (d = s; isALNUM_lazy_if(d,UTF); d++) ; |
b035a42e NC |
4833 | for (t=d; *t && isSPACE(*t); t++) ; |
4834 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) | |
5b7ea690 JH |
4835 | /* [perl #16184] */ |
4836 | && !(t[0] == '=' && t[1] == '>') | |
4837 | ) { | |
9014280d | 4838 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 4839 | "Precedence problem: open %.*s should be open(%.*s)", |
5b7ea690 JH |
4840 | d - s, s, d - s, s); |
4841 | } | |
93a17b20 | 4842 | } |
a0d0e21e | 4843 | LOP(OP_OPEN,XTERM); |
79072805 | 4844 | |
463ee0b2 | 4845 | case KEY_or: |
a0d0e21e | 4846 | yylval.ival = OP_OR; |
463ee0b2 LW |
4847 | OPERATOR(OROP); |
4848 | ||
79072805 LW |
4849 | case KEY_ord: |
4850 | UNI(OP_ORD); | |
4851 | ||
4852 | case KEY_oct: | |
4853 | UNI(OP_OCT); | |
4854 | ||
4855 | case KEY_opendir: | |
a0d0e21e | 4856 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
4857 | |
4858 | case KEY_print: | |
3280af22 | 4859 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 4860 | LOP(OP_PRINT,XREF); |
79072805 LW |
4861 | |
4862 | case KEY_printf: | |
3280af22 | 4863 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 4864 | LOP(OP_PRTF,XREF); |
79072805 | 4865 | |
c07a80fd | 4866 | case KEY_prototype: |
4867 | UNI(OP_PROTOTYPE); | |
4868 | ||
79072805 | 4869 | case KEY_push: |
a0d0e21e | 4870 | LOP(OP_PUSH,XTERM); |
79072805 LW |
4871 | |
4872 | case KEY_pop: | |
4873 | UNI(OP_POP); | |
4874 | ||
a0d0e21e LW |
4875 | case KEY_pos: |
4876 | UNI(OP_POS); | |
4e553d73 | 4877 | |
79072805 | 4878 | case KEY_pack: |
a0d0e21e | 4879 | LOP(OP_PACK,XTERM); |
79072805 LW |
4880 | |
4881 | case KEY_package: | |
a0d0e21e | 4882 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
4883 | OPERATOR(PACKAGE); |
4884 | ||
4885 | case KEY_pipe: | |
a0d0e21e | 4886 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
4887 | |
4888 | case KEY_q: | |
09bef843 | 4889 | s = scan_str(s,FALSE,FALSE); |
79072805 | 4890 | if (!s) |
85e6fe83 | 4891 | missingterm((char*)0); |
79072805 LW |
4892 | yylval.ival = OP_CONST; |
4893 | TERM(sublex_start()); | |
4894 | ||
a0d0e21e LW |
4895 | case KEY_quotemeta: |
4896 | UNI(OP_QUOTEMETA); | |
4897 | ||
8990e307 | 4898 | case KEY_qw: |
09bef843 | 4899 | s = scan_str(s,FALSE,FALSE); |
8990e307 | 4900 | if (!s) |
85e6fe83 | 4901 | missingterm((char*)0); |
8127e0e3 GS |
4902 | force_next(')'); |
4903 | if (SvCUR(PL_lex_stuff)) { | |
4904 | OP *words = Nullop; | |
4905 | int warned = 0; | |
3280af22 | 4906 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 4907 | while (len) { |
7948272d | 4908 | SV *sv; |
8127e0e3 GS |
4909 | for (; isSPACE(*d) && len; --len, ++d) ; |
4910 | if (len) { | |
24c2fff4 | 4911 | const char *b = d; |
e476b1b5 | 4912 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
4913 | for (; !isSPACE(*d) && len; --len, ++d) { |
4914 | if (*d == ',') { | |
9014280d | 4915 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
4916 | "Possible attempt to separate words with commas"); |
4917 | ++warned; | |
4918 | } | |
4919 | else if (*d == '#') { | |
9014280d | 4920 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
4921 | "Possible attempt to put comments in qw() list"); |
4922 | ++warned; | |
4923 | } | |
4924 | } | |
4925 | } | |
4926 | else { | |
4927 | for (; !isSPACE(*d) && len; --len, ++d) ; | |
4928 | } | |
7948272d NIS |
4929 | sv = newSVpvn(b, d-b); |
4930 | if (DO_UTF8(PL_lex_stuff)) | |
4931 | SvUTF8_on(sv); | |
8127e0e3 | 4932 | words = append_elem(OP_LIST, words, |
7948272d | 4933 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 4934 | } |
4935 | } | |
8127e0e3 GS |
4936 | if (words) { |
4937 | PL_nextval[PL_nexttoke].opval = words; | |
4938 | force_next(THING); | |
4939 | } | |
55497cff | 4940 | } |
37fd879b | 4941 | if (PL_lex_stuff) { |
8127e0e3 | 4942 | SvREFCNT_dec(PL_lex_stuff); |
37fd879b HS |
4943 | PL_lex_stuff = Nullsv; |
4944 | } | |
3280af22 | 4945 | PL_expect = XTERM; |
8127e0e3 | 4946 | TOKEN('('); |
8990e307 | 4947 | |
79072805 | 4948 | case KEY_qq: |
09bef843 | 4949 | s = scan_str(s,FALSE,FALSE); |
79072805 | 4950 | if (!s) |
85e6fe83 | 4951 | missingterm((char*)0); |
a0d0e21e | 4952 | yylval.ival = OP_STRINGIFY; |
3280af22 | 4953 | if (SvIVX(PL_lex_stuff) == '\'') |
0da6cfda | 4954 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
4955 | TERM(sublex_start()); |
4956 | ||
8782bef2 GB |
4957 | case KEY_qr: |
4958 | s = scan_pat(s,OP_QR); | |
4959 | TERM(sublex_start()); | |
4960 | ||
79072805 | 4961 | case KEY_qx: |
09bef843 | 4962 | s = scan_str(s,FALSE,FALSE); |
79072805 | 4963 | if (!s) |
85e6fe83 | 4964 | missingterm((char*)0); |
79072805 LW |
4965 | yylval.ival = OP_BACKTICK; |
4966 | set_csh(); | |
4967 | TERM(sublex_start()); | |
4968 | ||
4969 | case KEY_return: | |
4970 | OLDLOP(OP_RETURN); | |
4971 | ||
4972 | case KEY_require: | |
a7cb1f99 | 4973 | s = skipspace(s); |
e759cc13 RGS |
4974 | if (isDIGIT(*s)) { |
4975 | s = force_version(s, FALSE); | |
a7cb1f99 | 4976 | } |
e759cc13 RGS |
4977 | else if (*s != 'v' || !isDIGIT(s[1]) |
4978 | || (s = force_version(s, TRUE), *s == 'v')) | |
4979 | { | |
a7cb1f99 GS |
4980 | *PL_tokenbuf = '\0'; |
4981 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 4982 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
a7cb1f99 GS |
4983 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), TRUE); |
4984 | else if (*s == '<') | |
4985 | yyerror("<> should be quotes"); | |
4986 | } | |
463ee0b2 | 4987 | UNI(OP_REQUIRE); |
79072805 LW |
4988 | |
4989 | case KEY_reset: | |
4990 | UNI(OP_RESET); | |
4991 | ||
4992 | case KEY_redo: | |
a0d0e21e | 4993 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
4994 | LOOPX(OP_REDO); |
4995 | ||
4996 | case KEY_rename: | |
a0d0e21e | 4997 | LOP(OP_RENAME,XTERM); |
79072805 LW |
4998 | |
4999 | case KEY_rand: | |
5000 | UNI(OP_RAND); | |
5001 | ||
5002 | case KEY_rmdir: | |
5003 | UNI(OP_RMDIR); | |
5004 | ||
5005 | case KEY_rindex: | |
a0d0e21e | 5006 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
5007 | |
5008 | case KEY_read: | |
a0d0e21e | 5009 | LOP(OP_READ,XTERM); |
79072805 LW |
5010 | |
5011 | case KEY_readdir: | |
5012 | UNI(OP_READDIR); | |
5013 | ||
93a17b20 LW |
5014 | case KEY_readline: |
5015 | set_csh(); | |
5016 | UNI(OP_READLINE); | |
5017 | ||
5018 | case KEY_readpipe: | |
5019 | set_csh(); | |
5020 | UNI(OP_BACKTICK); | |
5021 | ||
79072805 LW |
5022 | case KEY_rewinddir: |
5023 | UNI(OP_REWINDDIR); | |
5024 | ||
5025 | case KEY_recv: | |
a0d0e21e | 5026 | LOP(OP_RECV,XTERM); |
79072805 LW |
5027 | |
5028 | case KEY_reverse: | |
a0d0e21e | 5029 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
5030 | |
5031 | case KEY_readlink: | |
5032 | UNI(OP_READLINK); | |
5033 | ||
5034 | case KEY_ref: | |
5035 | UNI(OP_REF); | |
5036 | ||
5037 | case KEY_s: | |
5038 | s = scan_subst(s); | |
5039 | if (yylval.opval) | |
5040 | TERM(sublex_start()); | |
5041 | else | |
5042 | TOKEN(1); /* force error */ | |
5043 | ||
a0d0e21e LW |
5044 | case KEY_chomp: |
5045 | UNI(OP_CHOMP); | |
4e553d73 | 5046 | |
79072805 LW |
5047 | case KEY_scalar: |
5048 | UNI(OP_SCALAR); | |
5049 | ||
5050 | case KEY_select: | |
a0d0e21e | 5051 | LOP(OP_SELECT,XTERM); |
79072805 LW |
5052 | |
5053 | case KEY_seek: | |
a0d0e21e | 5054 | LOP(OP_SEEK,XTERM); |
79072805 LW |
5055 | |
5056 | case KEY_semctl: | |
a0d0e21e | 5057 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
5058 | |
5059 | case KEY_semget: | |
a0d0e21e | 5060 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
5061 | |
5062 | case KEY_semop: | |
a0d0e21e | 5063 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
5064 | |
5065 | case KEY_send: | |
a0d0e21e | 5066 | LOP(OP_SEND,XTERM); |
79072805 LW |
5067 | |
5068 | case KEY_setpgrp: | |
a0d0e21e | 5069 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
5070 | |
5071 | case KEY_setpriority: | |
a0d0e21e | 5072 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
5073 | |
5074 | case KEY_sethostent: | |
ff68c719 | 5075 | UNI(OP_SHOSTENT); |
79072805 LW |
5076 | |
5077 | case KEY_setnetent: | |
ff68c719 | 5078 | UNI(OP_SNETENT); |
79072805 LW |
5079 | |
5080 | case KEY_setservent: | |
ff68c719 | 5081 | UNI(OP_SSERVENT); |
79072805 LW |
5082 | |
5083 | case KEY_setprotoent: | |
ff68c719 | 5084 | UNI(OP_SPROTOENT); |
79072805 LW |
5085 | |
5086 | case KEY_setpwent: | |
5087 | FUN0(OP_SPWENT); | |
5088 | ||
5089 | case KEY_setgrent: | |
5090 | FUN0(OP_SGRENT); | |
5091 | ||
5092 | case KEY_seekdir: | |
a0d0e21e | 5093 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
5094 | |
5095 | case KEY_setsockopt: | |
a0d0e21e | 5096 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
5097 | |
5098 | case KEY_shift: | |
5099 | UNI(OP_SHIFT); | |
5100 | ||
5101 | case KEY_shmctl: | |
a0d0e21e | 5102 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
5103 | |
5104 | case KEY_shmget: | |
a0d0e21e | 5105 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
5106 | |
5107 | case KEY_shmread: | |
a0d0e21e | 5108 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
5109 | |
5110 | case KEY_shmwrite: | |
a0d0e21e | 5111 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
5112 | |
5113 | case KEY_shutdown: | |
a0d0e21e | 5114 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
5115 | |
5116 | case KEY_sin: | |
5117 | UNI(OP_SIN); | |
5118 | ||
5119 | case KEY_sleep: | |
5120 | UNI(OP_SLEEP); | |
5121 | ||
5122 | case KEY_socket: | |
a0d0e21e | 5123 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
5124 | |
5125 | case KEY_socketpair: | |
a0d0e21e | 5126 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
5127 | |
5128 | case KEY_sort: | |
3280af22 | 5129 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
79072805 LW |
5130 | s = skipspace(s); |
5131 | if (*s == ';' || *s == ')') /* probably a close */ | |
cea2e8a9 | 5132 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 5133 | PL_expect = XTERM; |
15f0808c | 5134 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 5135 | LOP(OP_SORT,XREF); |
79072805 LW |
5136 | |
5137 | case KEY_split: | |
a0d0e21e | 5138 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
5139 | |
5140 | case KEY_sprintf: | |
a0d0e21e | 5141 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
5142 | |
5143 | case KEY_splice: | |
a0d0e21e | 5144 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
5145 | |
5146 | case KEY_sqrt: | |
5147 | UNI(OP_SQRT); | |
5148 | ||
5149 | case KEY_srand: | |
5150 | UNI(OP_SRAND); | |
5151 | ||
5152 | case KEY_stat: | |
5153 | UNI(OP_STAT); | |
5154 | ||
5155 | case KEY_study: | |
79072805 LW |
5156 | UNI(OP_STUDY); |
5157 | ||
5158 | case KEY_substr: | |
a0d0e21e | 5159 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
5160 | |
5161 | case KEY_format: | |
5162 | case KEY_sub: | |
93a17b20 | 5163 | really_sub: |
09bef843 | 5164 | { |
3280af22 | 5165 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 5166 | SSize_t tboffset = 0; |
09bef843 | 5167 | expectation attrful; |
d731386a | 5168 | bool have_name, have_proto, bad_proto; |
24c2fff4 | 5169 | const int key = tmp; |
09bef843 SB |
5170 | |
5171 | s = skipspace(s); | |
5172 | ||
7e2040f0 | 5173 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
5174 | (*s == ':' && s[1] == ':')) |
5175 | { | |
5176 | PL_expect = XBLOCK; | |
5177 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
5178 | /* remember buffer pos'n for later force_word */ |
5179 | tboffset = s - PL_oldbufptr; | |
09bef843 SB |
5180 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5181 | if (strchr(tmpbuf, ':')) | |
5182 | sv_setpv(PL_subname, tmpbuf); | |
5183 | else { | |
5184 | sv_setsv(PL_subname,PL_curstname); | |
5185 | sv_catpvn(PL_subname,"::",2); | |
5186 | sv_catpvn(PL_subname,tmpbuf,len); | |
5187 | } | |
5188 | s = skipspace(d); | |
5189 | have_name = TRUE; | |
5190 | } | |
463ee0b2 | 5191 | else { |
09bef843 SB |
5192 | if (key == KEY_my) |
5193 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
5194 | PL_expect = XTERMBLOCK; | |
5195 | attrful = XATTRTERM; | |
2a8de9e2 | 5196 | sv_setpvn(PL_subname,"?",1); |
09bef843 | 5197 | have_name = FALSE; |
463ee0b2 | 5198 | } |
4633a7c4 | 5199 | |
09bef843 SB |
5200 | if (key == KEY_format) { |
5201 | if (*s == '=') | |
5202 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5203 | if (have_name) | |
b1b65b59 JH |
5204 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
5205 | FALSE, TRUE, TRUE); | |
09bef843 SB |
5206 | OPERATOR(FORMAT); |
5207 | } | |
79072805 | 5208 | |
09bef843 SB |
5209 | /* Look for a prototype */ |
5210 | if (*s == '(') { | |
5211 | char *p; | |
5212 | ||
5213 | s = scan_str(s,FALSE,FALSE); | |
37fd879b | 5214 | if (!s) |
09bef843 | 5215 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 5216 | /* strip spaces and check for bad characters */ |
09bef843 SB |
5217 | d = SvPVX(PL_lex_stuff); |
5218 | tmp = 0; | |
d731386a | 5219 | bad_proto = FALSE; |
09bef843 | 5220 | for (p = d; *p; ++p) { |
d37a9538 | 5221 | if (!isSPACE(*p)) { |
09bef843 | 5222 | d[tmp++] = *p; |
d37a9538 ST |
5223 | if (!strchr("$@%*;[]&\\", *p)) |
5224 | bad_proto = TRUE; | |
5225 | } | |
09bef843 SB |
5226 | } |
5227 | d[tmp] = '\0'; | |
420cdfc1 | 5228 | if (bad_proto && ckWARN(WARN_SYNTAX)) |
9014280d | 5229 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
c293eb2b NC |
5230 | "Illegal character in prototype for %"SVf" : %s", |
5231 | PL_subname, d); | |
a8dc4fe8 | 5232 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 5233 | have_proto = TRUE; |
68dc0745 | 5234 | |
09bef843 | 5235 | s = skipspace(s); |
4633a7c4 | 5236 | } |
09bef843 SB |
5237 | else |
5238 | have_proto = FALSE; | |
5239 | ||
5240 | if (*s == ':' && s[1] != ':') | |
5241 | PL_expect = attrful; | |
60e3e0e4 NC |
5242 | else if (*s != '{' && key == KEY_sub) { |
5243 | if (!have_name) | |
5244 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
5245 | else if (*s != ';') | |
5246 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, PL_subname); | |
5247 | } | |
09bef843 SB |
5248 | |
5249 | if (have_proto) { | |
b1b65b59 JH |
5250 | PL_nextval[PL_nexttoke].opval = |
5251 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
09bef843 SB |
5252 | PL_lex_stuff = Nullsv; |
5253 | force_next(THING); | |
68dc0745 | 5254 | } |
09bef843 | 5255 | if (!have_name) { |
c99da370 JH |
5256 | sv_setpv(PL_subname, |
5257 | PL_curstash ? "__ANON__" : "__ANON__::__ANON__"); | |
09bef843 | 5258 | TOKEN(ANONSUB); |
4633a7c4 | 5259 | } |
b1b65b59 JH |
5260 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
5261 | FALSE, TRUE, TRUE); | |
09bef843 SB |
5262 | if (key == KEY_my) |
5263 | TOKEN(MYSUB); | |
5264 | TOKEN(SUB); | |
4633a7c4 | 5265 | } |
79072805 LW |
5266 | |
5267 | case KEY_system: | |
5268 | set_csh(); | |
a0d0e21e | 5269 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
5270 | |
5271 | case KEY_symlink: | |
a0d0e21e | 5272 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
5273 | |
5274 | case KEY_syscall: | |
a0d0e21e | 5275 | LOP(OP_SYSCALL,XTERM); |
79072805 | 5276 | |
c07a80fd | 5277 | case KEY_sysopen: |
5278 | LOP(OP_SYSOPEN,XTERM); | |
5279 | ||
137443ea | 5280 | case KEY_sysseek: |
5281 | LOP(OP_SYSSEEK,XTERM); | |
5282 | ||
79072805 | 5283 | case KEY_sysread: |
a0d0e21e | 5284 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
5285 | |
5286 | case KEY_syswrite: | |
a0d0e21e | 5287 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
5288 | |
5289 | case KEY_tr: | |
5290 | s = scan_trans(s); | |
5291 | TERM(sublex_start()); | |
5292 | ||
5293 | case KEY_tell: | |
5294 | UNI(OP_TELL); | |
5295 | ||
5296 | case KEY_telldir: | |
5297 | UNI(OP_TELLDIR); | |
5298 | ||
463ee0b2 | 5299 | case KEY_tie: |
a0d0e21e | 5300 | LOP(OP_TIE,XTERM); |
463ee0b2 | 5301 | |
c07a80fd | 5302 | case KEY_tied: |
5303 | UNI(OP_TIED); | |
5304 | ||
79072805 LW |
5305 | case KEY_time: |
5306 | FUN0(OP_TIME); | |
5307 | ||
5308 | case KEY_times: | |
5309 | FUN0(OP_TMS); | |
5310 | ||
5311 | case KEY_truncate: | |
a0d0e21e | 5312 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
5313 | |
5314 | case KEY_uc: | |
5315 | UNI(OP_UC); | |
5316 | ||
5317 | case KEY_ucfirst: | |
5318 | UNI(OP_UCFIRST); | |
5319 | ||
463ee0b2 LW |
5320 | case KEY_untie: |
5321 | UNI(OP_UNTIE); | |
5322 | ||
79072805 | 5323 | case KEY_until: |
57843af0 | 5324 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5325 | OPERATOR(UNTIL); |
5326 | ||
5327 | case KEY_unless: | |
57843af0 | 5328 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5329 | OPERATOR(UNLESS); |
5330 | ||
5331 | case KEY_unlink: | |
a0d0e21e | 5332 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
5333 | |
5334 | case KEY_undef: | |
5335 | UNI(OP_UNDEF); | |
5336 | ||
5337 | case KEY_unpack: | |
a0d0e21e | 5338 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
5339 | |
5340 | case KEY_utime: | |
a0d0e21e | 5341 | LOP(OP_UTIME,XTERM); |
79072805 LW |
5342 | |
5343 | case KEY_umask: | |
5344 | UNI(OP_UMASK); | |
5345 | ||
5346 | case KEY_unshift: | |
a0d0e21e LW |
5347 | LOP(OP_UNSHIFT,XTERM); |
5348 | ||
5349 | case KEY_use: | |
3280af22 | 5350 | if (PL_expect != XSTATE) |
a0d0e21e | 5351 | yyerror("\"use\" not allowed in expression"); |
89bfa8cd | 5352 | s = skipspace(s); |
a7cb1f99 | 5353 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { |
e759cc13 | 5354 | s = force_version(s, TRUE); |
a7cb1f99 | 5355 | if (*s == ';' || (s = skipspace(s), *s == ';')) { |
3280af22 | 5356 | PL_nextval[PL_nexttoke].opval = Nullop; |
89bfa8cd | 5357 | force_next(WORD); |
5358 | } | |
e759cc13 RGS |
5359 | else if (*s == 'v') { |
5360 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
5361 | s = force_version(s, FALSE); | |
5362 | } | |
89bfa8cd | 5363 | } |
5364 | else { | |
5365 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
e759cc13 | 5366 | s = force_version(s, FALSE); |
89bfa8cd | 5367 | } |
a0d0e21e LW |
5368 | yylval.ival = 1; |
5369 | OPERATOR(USE); | |
79072805 LW |
5370 | |
5371 | case KEY_values: | |
5372 | UNI(OP_VALUES); | |
5373 | ||
5374 | case KEY_vec: | |
a0d0e21e | 5375 | LOP(OP_VEC,XTERM); |
79072805 LW |
5376 | |
5377 | case KEY_while: | |
57843af0 | 5378 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5379 | OPERATOR(WHILE); |
5380 | ||
5381 | case KEY_warn: | |
3280af22 | 5382 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 5383 | LOP(OP_WARN,XTERM); |
79072805 LW |
5384 | |
5385 | case KEY_wait: | |
5386 | FUN0(OP_WAIT); | |
5387 | ||
5388 | case KEY_waitpid: | |
a0d0e21e | 5389 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
5390 | |
5391 | case KEY_wantarray: | |
5392 | FUN0(OP_WANTARRAY); | |
5393 | ||
5394 | case KEY_write: | |
9d116dd7 JH |
5395 | #ifdef EBCDIC |
5396 | { | |
df3728a2 JH |
5397 | char ctl_l[2]; |
5398 | ctl_l[0] = toCTRL('L'); | |
5399 | ctl_l[1] = '\0'; | |
9d116dd7 JH |
5400 | gv_fetchpv(ctl_l,TRUE, SVt_PV); |
5401 | } | |
5402 | #else | |
5403 | gv_fetchpv("\f",TRUE, SVt_PV); /* Make sure $^L is defined */ | |
5404 | #endif | |
79072805 LW |
5405 | UNI(OP_ENTERWRITE); |
5406 | ||
5407 | case KEY_x: | |
3280af22 | 5408 | if (PL_expect == XOPERATOR) |
79072805 LW |
5409 | Mop(OP_REPEAT); |
5410 | check_uni(); | |
5411 | goto just_a_word; | |
5412 | ||
a0d0e21e LW |
5413 | case KEY_xor: |
5414 | yylval.ival = OP_XOR; | |
5415 | OPERATOR(OROP); | |
5416 | ||
79072805 LW |
5417 | case KEY_y: |
5418 | s = scan_trans(s); | |
5419 | TERM(sublex_start()); | |
5420 | } | |
49dc05e3 | 5421 | }} |
79072805 | 5422 | } |
bf4acbe4 GS |
5423 | #ifdef __SC__ |
5424 | #pragma segment Main | |
5425 | #endif | |
79072805 | 5426 | |
e930465f JH |
5427 | static int |
5428 | S_pending_ident(pTHX) | |
8eceec63 SC |
5429 | { |
5430 | register char *d; | |
f8cf5370 | 5431 | register I32 tmp = 0; |
8eceec63 SC |
5432 | /* pit holds the identifier we read and pending_ident is reset */ |
5433 | char pit = PL_pending_ident; | |
5434 | PL_pending_ident = 0; | |
5435 | ||
5436 | DEBUG_T({ PerlIO_printf(Perl_debug_log, | |
5437 | "### Tokener saw identifier '%s'\n", PL_tokenbuf); }); | |
5438 | ||
5439 | /* if we're in a my(), we can't allow dynamics here. | |
5440 | $foo'bar has already been turned into $foo::bar, so | |
5441 | just check for colons. | |
5442 | ||
5443 | if it's a legal name, the OP is a PADANY. | |
5444 | */ | |
5445 | if (PL_in_my) { | |
5446 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
5447 | if (strchr(PL_tokenbuf,':')) | |
5448 | yyerror(Perl_form(aTHX_ "No package name allowed for " | |
5449 | "variable %s in \"our\"", | |
5450 | PL_tokenbuf)); | |
9755d405 | 5451 | tmp = allocmy(PL_tokenbuf); |
8eceec63 SC |
5452 | } |
5453 | else { | |
5454 | if (strchr(PL_tokenbuf,':')) | |
5455 | yyerror(Perl_form(aTHX_ PL_no_myglob,PL_tokenbuf)); | |
5456 | ||
5457 | yylval.opval = newOP(OP_PADANY, 0); | |
9755d405 | 5458 | yylval.opval->op_targ = allocmy(PL_tokenbuf); |
8eceec63 SC |
5459 | return PRIVATEREF; |
5460 | } | |
5461 | } | |
5462 | ||
5463 | /* | |
5464 | build the ops for accesses to a my() variable. | |
5465 | ||
5466 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
5467 | then used in a comparison. This catches most, but not | |
5468 | all cases. For instance, it catches | |
5469 | sort { my($a); $a <=> $b } | |
5470 | but not | |
5471 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
5472 | (although why you'd do that is anyone's guess). | |
5473 | */ | |
5474 | ||
5475 | if (!strchr(PL_tokenbuf,':')) { | |
4d1ff10f | 5476 | #ifdef USE_5005THREADS |
8eceec63 SC |
5477 | /* Check for single character per-thread SVs */ |
5478 | if (PL_tokenbuf[0] == '$' && PL_tokenbuf[2] == '\0' | |
5479 | && !isALPHA(PL_tokenbuf[1]) /* Rule out obvious non-threadsvs */ | |
5480 | && (tmp = find_threadsv(&PL_tokenbuf[1])) != NOT_IN_PAD) | |
5481 | { | |
5482 | yylval.opval = newOP(OP_THREADSV, 0); | |
5483 | yylval.opval->op_targ = tmp; | |
5484 | return PRIVATEREF; | |
5485 | } | |
4d1ff10f | 5486 | #endif /* USE_5005THREADS */ |
d7afa7f5 JH |
5487 | if (!PL_in_my) |
5488 | tmp = pad_findmy(PL_tokenbuf); | |
5489 | if (tmp != NOT_IN_PAD) { | |
8eceec63 | 5490 | /* might be an "our" variable" */ |
9755d405 | 5491 | if (PAD_COMPNAME_FLAGS(tmp) & SVpad_OUR) { |
8eceec63 | 5492 | /* build ops for a bareword */ |
26ab6a78 | 5493 | SV *sym = newSVpv(HvNAME_get(PAD_COMPNAME_OURSTASH(tmp)), 0); |
8eceec63 SC |
5494 | sv_catpvn(sym, "::", 2); |
5495 | sv_catpv(sym, PL_tokenbuf+1); | |
5496 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); | |
5497 | yylval.opval->op_private = OPpCONST_ENTERED; | |
5498 | gv_fetchpv(SvPVX(sym), | |
5499 | (PL_in_eval | |
5500 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 5501 | : GV_ADDMULTI |
8eceec63 SC |
5502 | ), |
5503 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
5504 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
5505 | : SVt_PVHV)); | |
5506 | return WORD; | |
5507 | } | |
5508 | ||
5509 | /* if it's a sort block and they're naming $a or $b */ | |
5510 | if (PL_last_lop_op == OP_SORT && | |
5511 | PL_tokenbuf[0] == '$' && | |
5512 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
5513 | && !PL_tokenbuf[2]) | |
5514 | { | |
5515 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
5516 | d < PL_bufend && *d != '\n'; | |
5517 | d++) | |
5518 | { | |
5519 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
5520 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
5521 | PL_tokenbuf); | |
5522 | } | |
5523 | } | |
5524 | } | |
5525 | ||
5526 | yylval.opval = newOP(OP_PADANY, 0); | |
5527 | yylval.opval->op_targ = tmp; | |
5528 | return PRIVATEREF; | |
5529 | } | |
5530 | } | |
5531 | ||
5532 | /* | |
5533 | Whine if they've said @foo in a doublequoted string, | |
5534 | and @foo isn't a variable we can find in the symbol | |
5535 | table. | |
5536 | */ | |
5537 | if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
5538 | GV *gv = gv_fetchpv(PL_tokenbuf+1, FALSE, SVt_PVAV); | |
5539 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) | |
5540 | && ckWARN(WARN_AMBIGUOUS)) | |
5541 | { | |
5542 | /* Downgraded from fatal to warning 20000522 mjd */ | |
9014280d | 5543 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
8eceec63 SC |
5544 | "Possible unintended interpolation of %s in string", |
5545 | PL_tokenbuf); | |
5546 | } | |
5547 | } | |
5548 | ||
5549 | /* build ops for a bareword */ | |
5550 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf+1, 0)); | |
5551 | yylval.opval->op_private = OPpCONST_ENTERED; | |
5552 | gv_fetchpv(PL_tokenbuf+1, PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : TRUE, | |
5553 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
5554 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
5555 | : SVt_PVHV)); | |
5556 | return WORD; | |
5557 | } | |
5558 | ||
64446b2f NC |
5559 | /* |
5560 | * The following code was generated by perl_keyword.pl. | |
5561 | */ | |
5562 | ||
79072805 | 5563 | I32 |
64446b2f | 5564 | Perl_keyword (pTHX_ char *name, I32 len) |
79072805 | 5565 | { |
64446b2f NC |
5566 | switch (len) |
5567 | { | |
5568 | case 1: /* 5 tokens of length 1 */ | |
5569 | switch (name[0]) | |
5570 | { | |
5571 | case 'm': | |
5572 | { /* m */ | |
5573 | return KEY_m; | |
5574 | } | |
5575 | ||
64446b2f NC |
5576 | case 'q': |
5577 | { /* q */ | |
5578 | return KEY_q; | |
5579 | } | |
5580 | ||
64446b2f NC |
5581 | case 's': |
5582 | { /* s */ | |
5583 | return KEY_s; | |
5584 | } | |
5585 | ||
64446b2f NC |
5586 | case 'x': |
5587 | { /* x */ | |
5588 | return -KEY_x; | |
5589 | } | |
5590 | ||
64446b2f NC |
5591 | case 'y': |
5592 | { /* y */ | |
5593 | return KEY_y; | |
5594 | } | |
5595 | ||
64446b2f NC |
5596 | default: |
5597 | goto unknown; | |
5598 | } | |
5599 | ||
5600 | case 2: /* 18 tokens of length 2 */ | |
5601 | switch (name[0]) | |
5602 | { | |
5603 | case 'd': | |
5604 | if (name[1] == 'o') | |
5605 | { /* do */ | |
5606 | return KEY_do; | |
5607 | } | |
5608 | ||
5609 | goto unknown; | |
5610 | ||
5611 | case 'e': | |
5612 | if (name[1] == 'q') | |
5613 | { /* eq */ | |
5614 | return -KEY_eq; | |
5615 | } | |
5616 | ||
5617 | goto unknown; | |
5618 | ||
5619 | case 'g': | |
5620 | switch (name[1]) | |
5621 | { | |
5622 | case 'e': | |
5623 | { /* ge */ | |
5624 | return -KEY_ge; | |
5625 | } | |
5626 | ||
64446b2f NC |
5627 | case 't': |
5628 | { /* gt */ | |
5629 | return -KEY_gt; | |
5630 | } | |
5631 | ||
64446b2f NC |
5632 | default: |
5633 | goto unknown; | |
5634 | } | |
5635 | ||
5636 | case 'i': | |
5637 | if (name[1] == 'f') | |
5638 | { /* if */ | |
5639 | return KEY_if; | |
5640 | } | |
5641 | ||
5642 | goto unknown; | |
5643 | ||
5644 | case 'l': | |
5645 | switch (name[1]) | |
5646 | { | |
5647 | case 'c': | |
5648 | { /* lc */ | |
5649 | return -KEY_lc; | |
5650 | } | |
5651 | ||
64446b2f NC |
5652 | case 'e': |
5653 | { /* le */ | |
5654 | return -KEY_le; | |
5655 | } | |
5656 | ||
64446b2f NC |
5657 | case 't': |
5658 | { /* lt */ | |
5659 | return -KEY_lt; | |
5660 | } | |
5661 | ||
64446b2f NC |
5662 | default: |
5663 | goto unknown; | |
5664 | } | |
5665 | ||
5666 | case 'm': | |
5667 | if (name[1] == 'y') | |
5668 | { /* my */ | |
5669 | return KEY_my; | |
5670 | } | |
5671 | ||
5672 | goto unknown; | |
5673 | ||
5674 | case 'n': | |
5675 | switch (name[1]) | |
5676 | { | |
5677 | case 'e': | |
5678 | { /* ne */ | |
5679 | return -KEY_ne; | |
5680 | } | |
5681 | ||
64446b2f NC |
5682 | case 'o': |
5683 | { /* no */ | |
5684 | return KEY_no; | |
5685 | } | |
5686 | ||
64446b2f NC |
5687 | default: |
5688 | goto unknown; | |
5689 | } | |
5690 | ||
5691 | case 'o': | |
5692 | if (name[1] == 'r') | |
5693 | { /* or */ | |
5694 | return -KEY_or; | |
5695 | } | |
5696 | ||
5697 | goto unknown; | |
5698 | ||
5699 | case 'q': | |
5700 | switch (name[1]) | |
5701 | { | |
5702 | case 'q': | |
5703 | { /* qq */ | |
5704 | return KEY_qq; | |
5705 | } | |
5706 | ||
64446b2f NC |
5707 | case 'r': |
5708 | { /* qr */ | |
5709 | return KEY_qr; | |
5710 | } | |
5711 | ||
64446b2f NC |
5712 | case 'w': |
5713 | { /* qw */ | |
5714 | return KEY_qw; | |
5715 | } | |
5716 | ||
64446b2f NC |
5717 | case 'x': |
5718 | { /* qx */ | |
5719 | return KEY_qx; | |
5720 | } | |
5721 | ||
64446b2f NC |
5722 | default: |
5723 | goto unknown; | |
5724 | } | |
5725 | ||
5726 | case 't': | |
5727 | if (name[1] == 'r') | |
5728 | { /* tr */ | |
5729 | return KEY_tr; | |
5730 | } | |
5731 | ||
5732 | goto unknown; | |
5733 | ||
5734 | case 'u': | |
5735 | if (name[1] == 'c') | |
5736 | { /* uc */ | |
5737 | return -KEY_uc; | |
5738 | } | |
5739 | ||
5740 | goto unknown; | |
5741 | ||
5742 | default: | |
5743 | goto unknown; | |
5744 | } | |
5745 | ||
5746 | case 3: /* 27 tokens of length 3 */ | |
5747 | switch (name[0]) | |
5748 | { | |
5749 | case 'E': | |
5750 | if (name[1] == 'N' && | |
5751 | name[2] == 'D') | |
5752 | { /* END */ | |
5753 | return KEY_END; | |
5754 | } | |
5755 | ||
5756 | goto unknown; | |
5757 | ||
5758 | case 'a': | |
5759 | switch (name[1]) | |
5760 | { | |
5761 | case 'b': | |
5762 | if (name[2] == 's') | |
5763 | { /* abs */ | |
5764 | return -KEY_abs; | |
5765 | } | |
5766 | ||
5767 | goto unknown; | |
5768 | ||
5769 | case 'n': | |
5770 | if (name[2] == 'd') | |
5771 | { /* and */ | |
5772 | return -KEY_and; | |
5773 | } | |
5774 | ||
5775 | goto unknown; | |
5776 | ||
5777 | default: | |
5778 | goto unknown; | |
5779 | } | |
5780 | ||
5781 | case 'c': | |
5782 | switch (name[1]) | |
5783 | { | |
5784 | case 'h': | |
5785 | if (name[2] == 'r') | |
5786 | { /* chr */ | |
5787 | return -KEY_chr; | |
5788 | } | |
5789 | ||
5790 | goto unknown; | |
5791 | ||
5792 | case 'm': | |
5793 | if (name[2] == 'p') | |
5794 | { /* cmp */ | |
5795 | return -KEY_cmp; | |
5796 | } | |
5797 | ||
5798 | goto unknown; | |
5799 | ||
5800 | case 'o': | |
5801 | if (name[2] == 's') | |
5802 | { /* cos */ | |
5803 | return -KEY_cos; | |
5804 | } | |
5805 | ||
5806 | goto unknown; | |
5807 | ||
5808 | default: | |
5809 | goto unknown; | |
5810 | } | |
5811 | ||
5812 | case 'd': | |
5813 | if (name[1] == 'i' && | |
5814 | name[2] == 'e') | |
5815 | { /* die */ | |
5816 | return -KEY_die; | |
5817 | } | |
5818 | ||
5819 | goto unknown; | |
5820 | ||
5821 | case 'e': | |
5822 | switch (name[1]) | |
5823 | { | |
5824 | case 'o': | |
5825 | if (name[2] == 'f') | |
5826 | { /* eof */ | |
5827 | return -KEY_eof; | |
5828 | } | |
5829 | ||
5830 | goto unknown; | |
5831 | ||
5832 | case 'x': | |
5833 | if (name[2] == 'p') | |
5834 | { /* exp */ | |
5835 | return -KEY_exp; | |
5836 | } | |
5837 | ||
5838 | goto unknown; | |
5839 | ||
5840 | default: | |
5841 | goto unknown; | |
5842 | } | |
5843 | ||
5844 | case 'f': | |
5845 | if (name[1] == 'o' && | |
5846 | name[2] == 'r') | |
5847 | { /* for */ | |
5848 | return KEY_for; | |
5849 | } | |
5850 | ||
5851 | goto unknown; | |
5852 | ||
5853 | case 'h': | |
5854 | if (name[1] == 'e' && | |
5855 | name[2] == 'x') | |
5856 | { /* hex */ | |
5857 | return -KEY_hex; | |
5858 | } | |
5859 | ||
5860 | goto unknown; | |
5861 | ||
5862 | case 'i': | |
5863 | if (name[1] == 'n' && | |
5864 | name[2] == 't') | |
5865 | { /* int */ | |
5866 | return -KEY_int; | |
5867 | } | |
5868 | ||
5869 | goto unknown; | |
5870 | ||
5871 | case 'l': | |
5872 | if (name[1] == 'o' && | |
5873 | name[2] == 'g') | |
5874 | { /* log */ | |
5875 | return -KEY_log; | |
5876 | } | |
5877 | ||
5878 | goto unknown; | |
5879 | ||
5880 | case 'm': | |
5881 | if (name[1] == 'a' && | |
5882 | name[2] == 'p') | |
5883 | { /* map */ | |
5884 | return KEY_map; | |
5885 | } | |
5886 | ||
5887 | goto unknown; | |
5888 | ||
5889 | case 'n': | |
5890 | if (name[1] == 'o' && | |
5891 | name[2] == 't') | |
5892 | { /* not */ | |
5893 | return -KEY_not; | |
5894 | } | |
5895 | ||
5896 | goto unknown; | |
5897 | ||
5898 | case 'o': | |
5899 | switch (name[1]) | |
5900 | { | |
5901 | case 'c': | |
5902 | if (name[2] == 't') | |
5903 | { /* oct */ | |
5904 | return -KEY_oct; | |
5905 | } | |
5906 | ||
5907 | goto unknown; | |
5908 | ||
5909 | case 'r': | |
5910 | if (name[2] == 'd') | |
5911 | { /* ord */ | |
5912 | return -KEY_ord; | |
5913 | } | |
5914 | ||
5915 | goto unknown; | |
5916 | ||
5917 | case 'u': | |
5918 | if (name[2] == 'r') | |
5919 | { /* our */ | |
5920 | return KEY_our; | |
5921 | } | |
5922 | ||
5923 | goto unknown; | |
5924 | ||
5925 | default: | |
5926 | goto unknown; | |
5927 | } | |
5928 | ||
5929 | case 'p': | |
5930 | if (name[1] == 'o') | |
5931 | { | |
5932 | switch (name[2]) | |
5933 | { | |
5934 | case 'p': | |
5935 | { /* pop */ | |
5936 | return -KEY_pop; | |
5937 | } | |
5938 | ||
64446b2f NC |
5939 | case 's': |
5940 | { /* pos */ | |
5941 | return KEY_pos; | |
5942 | } | |
5943 | ||
64446b2f NC |
5944 | default: |
5945 | goto unknown; | |
5946 | } | |
5947 | } | |
5948 | ||
5949 | goto unknown; | |
5950 | ||
5951 | case 'r': | |
5952 | if (name[1] == 'e' && | |
5953 | name[2] == 'f') | |
5954 | { /* ref */ | |
5955 | return -KEY_ref; | |
5956 | } | |
5957 | ||
5958 | goto unknown; | |
5959 | ||
5960 | case 's': | |
5961 | switch (name[1]) | |
5962 | { | |
5963 | case 'i': | |
5964 | if (name[2] == 'n') | |
5965 | { /* sin */ | |
5966 | return -KEY_sin; | |
5967 | } | |
5968 | ||
5969 | goto unknown; | |
5970 | ||
5971 | case 'u': | |
5972 | if (name[2] == 'b') | |
5973 | { /* sub */ | |
5974 | return KEY_sub; | |
5975 | } | |
5976 | ||
5977 | goto unknown; | |
5978 | ||
5979 | default: | |
5980 | goto unknown; | |
5981 | } | |
5982 | ||
5983 | case 't': | |
5984 | if (name[1] == 'i' && | |
5985 | name[2] == 'e') | |
5986 | { /* tie */ | |
5987 | return KEY_tie; | |
5988 | } | |
5989 | ||
5990 | goto unknown; | |
5991 | ||
5992 | case 'u': | |
5993 | if (name[1] == 's' && | |
5994 | name[2] == 'e') | |
5995 | { /* use */ | |
5996 | return KEY_use; | |
5997 | } | |
5998 | ||
5999 | goto unknown; | |
6000 | ||
6001 | case 'v': | |
6002 | if (name[1] == 'e' && | |
6003 | name[2] == 'c') | |
6004 | { /* vec */ | |
6005 | return -KEY_vec; | |
6006 | } | |
6007 | ||
6008 | goto unknown; | |
6009 | ||
6010 | case 'x': | |
6011 | if (name[1] == 'o' && | |
6012 | name[2] == 'r') | |
6013 | { /* xor */ | |
6014 | return -KEY_xor; | |
6015 | } | |
6016 | ||
6017 | goto unknown; | |
6018 | ||
6019 | default: | |
6020 | goto unknown; | |
6021 | } | |
6022 | ||
6023 | case 4: /* 40 tokens of length 4 */ | |
6024 | switch (name[0]) | |
6025 | { | |
6026 | case 'C': | |
6027 | if (name[1] == 'O' && | |
6028 | name[2] == 'R' && | |
6029 | name[3] == 'E') | |
6030 | { /* CORE */ | |
6031 | return -KEY_CORE; | |
6032 | } | |
6033 | ||
6034 | goto unknown; | |
6035 | ||
6036 | case 'I': | |
6037 | if (name[1] == 'N' && | |
6038 | name[2] == 'I' && | |
6039 | name[3] == 'T') | |
6040 | { /* INIT */ | |
6041 | return KEY_INIT; | |
6042 | } | |
6043 | ||
6044 | goto unknown; | |
6045 | ||
6046 | case 'b': | |
6047 | if (name[1] == 'i' && | |
6048 | name[2] == 'n' && | |
6049 | name[3] == 'd') | |
6050 | { /* bind */ | |
6051 | return -KEY_bind; | |
6052 | } | |
6053 | ||
6054 | goto unknown; | |
6055 | ||
6056 | case 'c': | |
6057 | if (name[1] == 'h' && | |
6058 | name[2] == 'o' && | |
6059 | name[3] == 'p') | |
6060 | { /* chop */ | |
6061 | return -KEY_chop; | |
6062 | } | |
6063 | ||
6064 | goto unknown; | |
6065 | ||
6066 | case 'd': | |
6067 | if (name[1] == 'u' && | |
6068 | name[2] == 'm' && | |
6069 | name[3] == 'p') | |
6070 | { /* dump */ | |
6071 | return -KEY_dump; | |
6072 | } | |
6073 | ||
6074 | goto unknown; | |
6075 | ||
6076 | case 'e': | |
6077 | switch (name[1]) | |
6078 | { | |
6079 | case 'a': | |
6080 | if (name[2] == 'c' && | |
6081 | name[3] == 'h') | |
6082 | { /* each */ | |
6083 | return -KEY_each; | |
6084 | } | |
6085 | ||
6086 | goto unknown; | |
6087 | ||
6088 | case 'l': | |
6089 | if (name[2] == 's' && | |
6090 | name[3] == 'e') | |
6091 | { /* else */ | |
6092 | return KEY_else; | |
6093 | } | |
6094 | ||
6095 | goto unknown; | |
6096 | ||
6097 | case 'v': | |
6098 | if (name[2] == 'a' && | |
6099 | name[3] == 'l') | |
6100 | { /* eval */ | |
6101 | return KEY_eval; | |
6102 | } | |
6103 | ||
6104 | goto unknown; | |
6105 | ||
6106 | case 'x': | |
6107 | switch (name[2]) | |
6108 | { | |
6109 | case 'e': | |
6110 | if (name[3] == 'c') | |
6111 | { /* exec */ | |
6112 | return -KEY_exec; | |
6113 | } | |
6114 | ||
6115 | goto unknown; | |
6116 | ||
6117 | case 'i': | |
6118 | if (name[3] == 't') | |
6119 | { /* exit */ | |
6120 | return -KEY_exit; | |
6121 | } | |
6122 | ||
6123 | goto unknown; | |
6124 | ||
6125 | default: | |
6126 | goto unknown; | |
6127 | } | |
6128 | ||
6129 | default: | |
6130 | goto unknown; | |
6131 | } | |
6132 | ||
6133 | case 'f': | |
6134 | if (name[1] == 'o' && | |
6135 | name[2] == 'r' && | |
6136 | name[3] == 'k') | |
6137 | { /* fork */ | |
6138 | return -KEY_fork; | |
6139 | } | |
6140 | ||
6141 | goto unknown; | |
6142 | ||
6143 | case 'g': | |
6144 | switch (name[1]) | |
6145 | { | |
6146 | case 'e': | |
6147 | if (name[2] == 't' && | |
6148 | name[3] == 'c') | |
6149 | { /* getc */ | |
6150 | return -KEY_getc; | |
6151 | } | |
6152 | ||
6153 | goto unknown; | |
6154 | ||
6155 | case 'l': | |
6156 | if (name[2] == 'o' && | |
6157 | name[3] == 'b') | |
6158 | { /* glob */ | |
6159 | return KEY_glob; | |
6160 | } | |
6161 | ||
6162 | goto unknown; | |
6163 | ||
6164 | case 'o': | |
6165 | if (name[2] == 't' && | |
6166 | name[3] == 'o') | |
6167 | { /* goto */ | |
6168 | return KEY_goto; | |
6169 | } | |
6170 | ||
6171 | goto unknown; | |
6172 | ||
6173 | case 'r': | |
6174 | if (name[2] == 'e' && | |
6175 | name[3] == 'p') | |
6176 | { /* grep */ | |
6177 | return KEY_grep; | |
6178 | } | |
6179 | ||
6180 | goto unknown; | |
6181 | ||
6182 | default: | |
6183 | goto unknown; | |
6184 | } | |
6185 | ||
6186 | case 'j': | |
6187 | if (name[1] == 'o' && | |
6188 | name[2] == 'i' && | |
6189 | name[3] == 'n') | |
6190 | { /* join */ | |
6191 | return -KEY_join; | |
6192 | } | |
6193 | ||
6194 | goto unknown; | |
6195 | ||
6196 | case 'k': | |
6197 | switch (name[1]) | |
6198 | { | |
6199 | case 'e': | |
6200 | if (name[2] == 'y' && | |
6201 | name[3] == 's') | |
6202 | { /* keys */ | |
6203 | return -KEY_keys; | |
6204 | } | |
6205 | ||
6206 | goto unknown; | |
6207 | ||
6208 | case 'i': | |
6209 | if (name[2] == 'l' && | |
6210 | name[3] == 'l') | |
6211 | { /* kill */ | |
6212 | return -KEY_kill; | |
6213 | } | |
6214 | ||
6215 | goto unknown; | |
6216 | ||
6217 | default: | |
6218 | goto unknown; | |
6219 | } | |
6220 | ||
6221 | case 'l': | |
6222 | switch (name[1]) | |
6223 | { | |
6224 | case 'a': | |
6225 | if (name[2] == 's' && | |
6226 | name[3] == 't') | |
6227 | { /* last */ | |
6228 | return KEY_last; | |
6229 | } | |
6230 | ||
6231 | goto unknown; | |
6232 | ||
6233 | case 'i': | |
6234 | if (name[2] == 'n' && | |
6235 | name[3] == 'k') | |
6236 | { /* link */ | |
6237 | return -KEY_link; | |
6238 | } | |
6239 | ||
6240 | goto unknown; | |
6241 | ||
6242 | case 'o': | |
6243 | if (name[2] == 'c' && | |
6244 | name[3] == 'k') | |
6245 | { /* lock */ | |
6246 | return -KEY_lock; | |
6247 | } | |
6248 | ||
6249 | goto unknown; | |
6250 | ||
6251 | default: | |
6252 | goto unknown; | |
6253 | } | |
6254 | ||
6255 | case 'n': | |
6256 | if (name[1] == 'e' && | |
6257 | name[2] == 'x' && | |
6258 | name[3] == 't') | |
6259 | { /* next */ | |
6260 | return KEY_next; | |
6261 | } | |
6262 | ||
6263 | goto unknown; | |
6264 | ||
6265 | case 'o': | |
6266 | if (name[1] == 'p' && | |
6267 | name[2] == 'e' && | |
6268 | name[3] == 'n') | |
6269 | { /* open */ | |
6270 | return -KEY_open; | |
6271 | } | |
6272 | ||
6273 | goto unknown; | |
6274 | ||
6275 | case 'p': | |
6276 | switch (name[1]) | |
6277 | { | |
6278 | case 'a': | |
6279 | if (name[2] == 'c' && | |
6280 | name[3] == 'k') | |
6281 | { /* pack */ | |
6282 | return -KEY_pack; | |
6283 | } | |
6284 | ||
6285 | goto unknown; | |
6286 | ||
6287 | case 'i': | |
6288 | if (name[2] == 'p' && | |
6289 | name[3] == 'e') | |
6290 | { /* pipe */ | |
6291 | return -KEY_pipe; | |
6292 | } | |
6293 | ||
6294 | goto unknown; | |
6295 | ||
6296 | case 'u': | |
6297 | if (name[2] == 's' && | |
6298 | name[3] == 'h') | |
6299 | { /* push */ | |
6300 | return -KEY_push; | |
6301 | } | |
6302 | ||
6303 | goto unknown; | |
6304 | ||
6305 | default: | |
6306 | goto unknown; | |
6307 | } | |
6308 | ||
6309 | case 'r': | |
6310 | switch (name[1]) | |
6311 | { | |
6312 | case 'a': | |
6313 | if (name[2] == 'n' && | |
6314 | name[3] == 'd') | |
6315 | { /* rand */ | |
6316 | return -KEY_rand; | |
6317 | } | |
6318 | ||
6319 | goto unknown; | |
6320 | ||
6321 | case 'e': | |
6322 | switch (name[2]) | |
6323 | { | |
6324 | case 'a': | |
6325 | if (name[3] == 'd') | |
6326 | { /* read */ | |
6327 | return -KEY_read; | |
6328 | } | |
6329 | ||
6330 | goto unknown; | |
6331 | ||
6332 | case 'c': | |
6333 | if (name[3] == 'v') | |
6334 | { /* recv */ | |
6335 | return -KEY_recv; | |
6336 | } | |
6337 | ||
6338 | goto unknown; | |
6339 | ||
6340 | case 'd': | |
6341 | if (name[3] == 'o') | |
6342 | { /* redo */ | |
6343 | return KEY_redo; | |
6344 | } | |
6345 | ||
6346 | goto unknown; | |
6347 | ||
6348 | default: | |
6349 | goto unknown; | |
6350 | } | |
6351 | ||
6352 | default: | |
6353 | goto unknown; | |
6354 | } | |
6355 | ||
6356 | case 's': | |
6357 | switch (name[1]) | |
6358 | { | |
6359 | case 'e': | |
6360 | switch (name[2]) | |
6361 | { | |
6362 | case 'e': | |
6363 | if (name[3] == 'k') | |
6364 | { /* seek */ | |
6365 | return -KEY_seek; | |
6366 | } | |
6367 | ||
6368 | goto unknown; | |
6369 | ||
6370 | case 'n': | |
6371 | if (name[3] == 'd') | |
6372 | { /* send */ | |
6373 | return -KEY_send; | |
6374 | } | |
6375 | ||
6376 | goto unknown; | |
6377 | ||
6378 | default: | |
6379 | goto unknown; | |
6380 | } | |
6381 | ||
6382 | case 'o': | |
6383 | if (name[2] == 'r' && | |
6384 | name[3] == 't') | |
6385 | { /* sort */ | |
6386 | return KEY_sort; | |
6387 | } | |
6388 | ||
6389 | goto unknown; | |
6390 | ||
6391 | case 'q': | |
6392 | if (name[2] == 'r' && | |
6393 | name[3] == 't') | |
6394 | { /* sqrt */ | |
6395 | return -KEY_sqrt; | |
6396 | } | |
6397 | ||
6398 | goto unknown; | |
6399 | ||
6400 | case 't': | |
6401 | if (name[2] == 'a' && | |
6402 | name[3] == 't') | |
6403 | { /* stat */ | |
6404 | return -KEY_stat; | |
6405 | } | |
6406 | ||
6407 | goto unknown; | |
6408 | ||
6409 | default: | |
6410 | goto unknown; | |
6411 | } | |
6412 | ||
6413 | case 't': | |
6414 | switch (name[1]) | |
6415 | { | |
6416 | case 'e': | |
6417 | if (name[2] == 'l' && | |
6418 | name[3] == 'l') | |
6419 | { /* tell */ | |
6420 | return -KEY_tell; | |
6421 | } | |
6422 | ||
6423 | goto unknown; | |
6424 | ||
6425 | case 'i': | |
6426 | switch (name[2]) | |
6427 | { | |
6428 | case 'e': | |
6429 | if (name[3] == 'd') | |
6430 | { /* tied */ | |
6431 | return KEY_tied; | |
6432 | } | |
6433 | ||
6434 | goto unknown; | |
6435 | ||
6436 | case 'm': | |
6437 | if (name[3] == 'e') | |
6438 | { /* time */ | |
6439 | return -KEY_time; | |
6440 | } | |
6441 | ||
6442 | goto unknown; | |
6443 | ||
6444 | default: | |
6445 | goto unknown; | |
6446 | } | |
6447 | ||
6448 | default: | |
6449 | goto unknown; | |
6450 | } | |
6451 | ||
6452 | case 'w': | |
6453 | if (name[1] == 'a') | |
6454 | { | |
6455 | switch (name[2]) | |
6456 | { | |
6457 | case 'i': | |
6458 | if (name[3] == 't') | |
6459 | { /* wait */ | |
6460 | return -KEY_wait; | |
6461 | } | |
6462 | ||
6463 | goto unknown; | |
6464 | ||
6465 | case 'r': | |
6466 | if (name[3] == 'n') | |
6467 | { /* warn */ | |
6468 | return -KEY_warn; | |
6469 | } | |
6470 | ||
6471 | goto unknown; | |
6472 | ||
6473 | default: | |
6474 | goto unknown; | |
6475 | } | |
6476 | } | |
6477 | ||
6478 | goto unknown; | |
6479 | ||
6480 | default: | |
6481 | goto unknown; | |
6482 | } | |
6483 | ||
6484 | case 5: /* 36 tokens of length 5 */ | |
6485 | switch (name[0]) | |
6486 | { | |
6487 | case 'B': | |
6488 | if (name[1] == 'E' && | |
6489 | name[2] == 'G' && | |
6490 | name[3] == 'I' && | |
6491 | name[4] == 'N') | |
6492 | { /* BEGIN */ | |
6493 | return KEY_BEGIN; | |
6494 | } | |
6495 | ||
6496 | goto unknown; | |
6497 | ||
6498 | case 'C': | |
6499 | if (name[1] == 'H' && | |
6500 | name[2] == 'E' && | |
6501 | name[3] == 'C' && | |
6502 | name[4] == 'K') | |
6503 | { /* CHECK */ | |
6504 | return KEY_CHECK; | |
6505 | } | |
6506 | ||
6507 | goto unknown; | |
6508 | ||
6509 | case 'a': | |
6510 | switch (name[1]) | |
6511 | { | |
6512 | case 'l': | |
6513 | if (name[2] == 'a' && | |
6514 | name[3] == 'r' && | |
6515 | name[4] == 'm') | |
6516 | { /* alarm */ | |
6517 | return -KEY_alarm; | |
6518 | } | |
6519 | ||
6520 | goto unknown; | |
6521 | ||
6522 | case 't': | |
6523 | if (name[2] == 'a' && | |
6524 | name[3] == 'n' && | |
6525 | name[4] == '2') | |
6526 | { /* atan2 */ | |
6527 | return -KEY_atan2; | |
6528 | } | |
6529 | ||
6530 | goto unknown; | |
6531 | ||
6532 | default: | |
6533 | goto unknown; | |
6534 | } | |
6535 | ||
6536 | case 'b': | |
6537 | if (name[1] == 'l' && | |
6538 | name[2] == 'e' && | |
6539 | name[3] == 's' && | |
6540 | name[4] == 's') | |
6541 | { /* bless */ | |
6542 | return -KEY_bless; | |
6543 | } | |
6544 | ||
6545 | goto unknown; | |
6546 | ||
6547 | case 'c': | |
6548 | switch (name[1]) | |
6549 | { | |
6550 | case 'h': | |
6551 | switch (name[2]) | |
6552 | { | |
6553 | case 'd': | |
6554 | if (name[3] == 'i' && | |
6555 | name[4] == 'r') | |
6556 | { /* chdir */ | |
6557 | return -KEY_chdir; | |
6558 | } | |
6559 | ||
6560 | goto unknown; | |
6561 | ||
6562 | case 'm': | |
6563 | if (name[3] == 'o' && | |
6564 | name[4] == 'd') | |
6565 | { /* chmod */ | |
6566 | return -KEY_chmod; | |
6567 | } | |
6568 | ||
6569 | goto unknown; | |
6570 | ||
6571 | case 'o': | |
6572 | switch (name[3]) | |
6573 | { | |
6574 | case 'm': | |
6575 | if (name[4] == 'p') | |
6576 | { /* chomp */ | |
6577 | return -KEY_chomp; | |
6578 | } | |
6579 | ||
6580 | goto unknown; | |
6581 | ||
6582 | case 'w': | |
6583 | if (name[4] == 'n') | |
6584 | { /* chown */ | |
6585 | return -KEY_chown; | |
6586 | } | |
6587 | ||
6588 | goto unknown; | |
6589 | ||
6590 | default: | |
6591 | goto unknown; | |
6592 | } | |
6593 | ||
6594 | default: | |
6595 | goto unknown; | |
6596 | } | |
6597 | ||
6598 | case 'l': | |
6599 | if (name[2] == 'o' && | |
6600 | name[3] == 's' && | |
6601 | name[4] == 'e') | |
6602 | { /* close */ | |
6603 | return -KEY_close; | |
6604 | } | |
6605 | ||
6606 | goto unknown; | |
6607 | ||
6608 | case 'r': | |
6609 | if (name[2] == 'y' && | |
6610 | name[3] == 'p' && | |
6611 | name[4] == 't') | |
6612 | { /* crypt */ | |
6613 | return -KEY_crypt; | |
6614 | } | |
6615 | ||
6616 | goto unknown; | |
6617 | ||
6618 | default: | |
6619 | goto unknown; | |
6620 | } | |
6621 | ||
6622 | case 'e': | |
6623 | if (name[1] == 'l' && | |
6624 | name[2] == 's' && | |
6625 | name[3] == 'i' && | |
6626 | name[4] == 'f') | |
6627 | { /* elsif */ | |
6628 | return KEY_elsif; | |
6629 | } | |
6630 | ||
6631 | goto unknown; | |
6632 | ||
6633 | case 'f': | |
6634 | switch (name[1]) | |
6635 | { | |
6636 | case 'c': | |
6637 | if (name[2] == 'n' && | |
6638 | name[3] == 't' && | |
6639 | name[4] == 'l') | |
6640 | { /* fcntl */ | |
6641 | return -KEY_fcntl; | |
6642 | } | |
6643 | ||
6644 | goto unknown; | |
6645 | ||
6646 | case 'l': | |
6647 | if (name[2] == 'o' && | |
6648 | name[3] == 'c' && | |
6649 | name[4] == 'k') | |
6650 | { /* flock */ | |
6651 | return -KEY_flock; | |
6652 | } | |
6653 | ||
6654 | goto unknown; | |
6655 | ||
6656 | default: | |
6657 | goto unknown; | |
6658 | } | |
6659 | ||
6660 | case 'i': | |
6661 | switch (name[1]) | |
6662 | { | |
6663 | case 'n': | |
6664 | if (name[2] == 'd' && | |
6665 | name[3] == 'e' && | |
6666 | name[4] == 'x') | |
6667 | { /* index */ | |
6668 | return -KEY_index; | |
6669 | } | |
6670 | ||
6671 | goto unknown; | |
6672 | ||
6673 | case 'o': | |
6674 | if (name[2] == 'c' && | |
6675 | name[3] == 't' && | |
6676 | name[4] == 'l') | |
6677 | { /* ioctl */ | |
6678 | return -KEY_ioctl; | |
6679 | } | |
6680 | ||
6681 | goto unknown; | |
6682 | ||
6683 | default: | |
6684 | goto unknown; | |
6685 | } | |
6686 | ||
6687 | case 'l': | |
6688 | switch (name[1]) | |
6689 | { | |
6690 | case 'o': | |
6691 | if (name[2] == 'c' && | |
6692 | name[3] == 'a' && | |
6693 | name[4] == 'l') | |
6694 | { /* local */ | |
6695 | return KEY_local; | |
6696 | } | |
6697 | ||
6698 | goto unknown; | |
6699 | ||
6700 | case 's': | |
6701 | if (name[2] == 't' && | |
6702 | name[3] == 'a' && | |
6703 | name[4] == 't') | |
6704 | { /* lstat */ | |
6705 | return -KEY_lstat; | |
6706 | } | |
6707 | ||
6708 | goto unknown; | |
6709 | ||
6710 | default: | |
6711 | goto unknown; | |
6712 | } | |
6713 | ||
6714 | case 'm': | |
6715 | if (name[1] == 'k' && | |
6716 | name[2] == 'd' && | |
6717 | name[3] == 'i' && | |
6718 | name[4] == 'r') | |
6719 | { /* mkdir */ | |
6720 | return -KEY_mkdir; | |
6721 | } | |
6722 | ||
6723 | goto unknown; | |
6724 | ||
6725 | case 'p': | |
6726 | if (name[1] == 'r' && | |
6727 | name[2] == 'i' && | |
6728 | name[3] == 'n' && | |
6729 | name[4] == 't') | |
6730 | { /* print */ | |
6731 | return KEY_print; | |
6732 | } | |
6733 | ||
6734 | goto unknown; | |
6735 | ||
6736 | case 'r': | |
6737 | switch (name[1]) | |
6738 | { | |
6739 | case 'e': | |
6740 | if (name[2] == 's' && | |
6741 | name[3] == 'e' && | |
6742 | name[4] == 't') | |
6743 | { /* reset */ | |
6744 | return -KEY_reset; | |
6745 | } | |
6746 | ||
6747 | goto unknown; | |
6748 | ||
6749 | case 'm': | |
6750 | if (name[2] == 'd' && | |
6751 | name[3] == 'i' && | |
6752 | name[4] == 'r') | |
6753 | { /* rmdir */ | |
6754 | return -KEY_rmdir; | |
6755 | } | |
6756 | ||
6757 | goto unknown; | |
6758 | ||
6759 | default: | |
6760 | goto unknown; | |
6761 | } | |
6762 | ||
6763 | case 's': | |
6764 | switch (name[1]) | |
6765 | { | |
6766 | case 'e': | |
6767 | if (name[2] == 'm' && | |
6768 | name[3] == 'o' && | |
6769 | name[4] == 'p') | |
6770 | { /* semop */ | |
6771 | return -KEY_semop; | |
6772 | } | |
6773 | ||
6774 | goto unknown; | |
6775 | ||
6776 | case 'h': | |
6777 | if (name[2] == 'i' && | |
6778 | name[3] == 'f' && | |
6779 | name[4] == 't') | |
6780 | { /* shift */ | |
6781 | return -KEY_shift; | |
6782 | } | |
6783 | ||
6784 | goto unknown; | |
6785 | ||
6786 | case 'l': | |
6787 | if (name[2] == 'e' && | |
6788 | name[3] == 'e' && | |
6789 | name[4] == 'p') | |
6790 | { /* sleep */ | |
6791 | return -KEY_sleep; | |
6792 | } | |
6793 | ||
6794 | goto unknown; | |
6795 | ||
6796 | case 'p': | |
6797 | if (name[2] == 'l' && | |
6798 | name[3] == 'i' && | |
6799 | name[4] == 't') | |
6800 | { /* split */ | |
6801 | return KEY_split; | |
6802 | } | |
6803 | ||
6804 | goto unknown; | |
6805 | ||
6806 | case 'r': | |
6807 | if (name[2] == 'a' && | |
6808 | name[3] == 'n' && | |
6809 | name[4] == 'd') | |
6810 | { /* srand */ | |
6811 | return -KEY_srand; | |
6812 | } | |
6813 | ||
6814 | goto unknown; | |
6815 | ||
6816 | case 't': | |
6817 | if (name[2] == 'u' && | |
6818 | name[3] == 'd' && | |
6819 | name[4] == 'y') | |
6820 | { /* study */ | |
6821 | return KEY_study; | |
6822 | } | |
6823 | ||
6824 | goto unknown; | |
6825 | ||
6826 | default: | |
6827 | goto unknown; | |
6828 | } | |
6829 | ||
6830 | case 't': | |
6831 | if (name[1] == 'i' && | |
6832 | name[2] == 'm' && | |
6833 | name[3] == 'e' && | |
6834 | name[4] == 's') | |
6835 | { /* times */ | |
6836 | return -KEY_times; | |
6837 | } | |
6838 | ||
6839 | goto unknown; | |
6840 | ||
6841 | case 'u': | |
6842 | switch (name[1]) | |
6843 | { | |
6844 | case 'm': | |
6845 | if (name[2] == 'a' && | |
6846 | name[3] == 's' && | |
6847 | name[4] == 'k') | |
6848 | { /* umask */ | |
6849 | return -KEY_umask; | |
6850 | } | |
6851 | ||
6852 | goto unknown; | |
6853 | ||
6854 | case 'n': | |
6855 | switch (name[2]) | |
6856 | { | |
6857 | case 'd': | |
6858 | if (name[3] == 'e' && | |
6859 | name[4] == 'f') | |
6860 | { /* undef */ | |
6861 | return KEY_undef; | |
6862 | } | |
6863 | ||
6864 | goto unknown; | |
6865 | ||
6866 | case 't': | |
6867 | if (name[3] == 'i') | |
6868 | { | |
6869 | switch (name[4]) | |
6870 | { | |
6871 | case 'e': | |
6872 | { /* untie */ | |
6873 | return KEY_untie; | |
6874 | } | |
6875 | ||
64446b2f NC |
6876 | case 'l': |
6877 | { /* until */ | |
6878 | return KEY_until; | |
6879 | } | |
6880 | ||
64446b2f NC |
6881 | default: |
6882 | goto unknown; | |
6883 | } | |
6884 | } | |
6885 | ||
6886 | goto unknown; | |
6887 | ||
6888 | default: | |
6889 | goto unknown; | |
6890 | } | |
6891 | ||
6892 | case 't': | |
6893 | if (name[2] == 'i' && | |
6894 | name[3] == 'm' && | |
6895 | name[4] == 'e') | |
6896 | { /* utime */ | |
6897 | return -KEY_utime; | |
6898 | } | |
6899 | ||
6900 | goto unknown; | |
6901 | ||
6902 | default: | |
6903 | goto unknown; | |
6904 | } | |
6905 | ||
6906 | case 'w': | |
6907 | switch (name[1]) | |
6908 | { | |
6909 | case 'h': | |
6910 | if (name[2] == 'i' && | |
6911 | name[3] == 'l' && | |
6912 | name[4] == 'e') | |
6913 | { /* while */ | |
6914 | return KEY_while; | |
6915 | } | |
6916 | ||
6917 | goto unknown; | |
6918 | ||
6919 | case 'r': | |
6920 | if (name[2] == 'i' && | |
6921 | name[3] == 't' && | |
6922 | name[4] == 'e') | |
6923 | { /* write */ | |
6924 | return -KEY_write; | |
6925 | } | |
6926 | ||
6927 | goto unknown; | |
6928 | ||
6929 | default: | |
6930 | goto unknown; | |
6931 | } | |
6932 | ||
6933 | default: | |
6934 | goto unknown; | |
6935 | } | |
6936 | ||
6937 | case 6: /* 33 tokens of length 6 */ | |
6938 | switch (name[0]) | |
6939 | { | |
6940 | case 'a': | |
6941 | if (name[1] == 'c' && | |
6942 | name[2] == 'c' && | |
6943 | name[3] == 'e' && | |
6944 | name[4] == 'p' && | |
6945 | name[5] == 't') | |
6946 | { /* accept */ | |
6947 | return -KEY_accept; | |
6948 | } | |
6949 | ||
6950 | goto unknown; | |
6951 | ||
6952 | case 'c': | |
6953 | switch (name[1]) | |
6954 | { | |
6955 | case 'a': | |
6956 | if (name[2] == 'l' && | |
6957 | name[3] == 'l' && | |
6958 | name[4] == 'e' && | |
6959 | name[5] == 'r') | |
6960 | { /* caller */ | |
6961 | return -KEY_caller; | |
6962 | } | |
6963 | ||
6964 | goto unknown; | |
6965 | ||
6966 | case 'h': | |
6967 | if (name[2] == 'r' && | |
6968 | name[3] == 'o' && | |
6969 | name[4] == 'o' && | |
6970 | name[5] == 't') | |
6971 | { /* chroot */ | |
6972 | return -KEY_chroot; | |
6973 | } | |
6974 | ||
6975 | goto unknown; | |
6976 | ||
6977 | default: | |
6978 | goto unknown; | |
6979 | } | |
6980 | ||
6981 | case 'd': | |
6982 | if (name[1] == 'e' && | |
6983 | name[2] == 'l' && | |
6984 | name[3] == 'e' && | |
6985 | name[4] == 't' && | |
6986 | name[5] == 'e') | |
6987 | { /* delete */ | |
6988 | return KEY_delete; | |
6989 | } | |
6990 | ||
6991 | goto unknown; | |
6992 | ||
6993 | case 'e': | |
6994 | switch (name[1]) | |
6995 | { | |
6996 | case 'l': | |
6997 | if (name[2] == 's' && | |
6998 | name[3] == 'e' && | |
6999 | name[4] == 'i' && | |
7000 | name[5] == 'f') | |
7001 | { /* elseif */ | |
7002 | if(ckWARN_d(WARN_SYNTAX)) | |
7003 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); | |
7004 | } | |
7005 | ||
7006 | goto unknown; | |
7007 | ||
7008 | case 'x': | |
7009 | if (name[2] == 'i' && | |
7010 | name[3] == 's' && | |
7011 | name[4] == 't' && | |
7012 | name[5] == 's') | |
7013 | { /* exists */ | |
7014 | return KEY_exists; | |
7015 | } | |
7016 | ||
7017 | goto unknown; | |
7018 | ||
7019 | default: | |
7020 | goto unknown; | |
7021 | } | |
7022 | ||
7023 | case 'f': | |
7024 | switch (name[1]) | |
7025 | { | |
7026 | case 'i': | |
7027 | if (name[2] == 'l' && | |
7028 | name[3] == 'e' && | |
7029 | name[4] == 'n' && | |
7030 | name[5] == 'o') | |
7031 | { /* fileno */ | |
7032 | return -KEY_fileno; | |
7033 | } | |
7034 | ||
7035 | goto unknown; | |
7036 | ||
7037 | case 'o': | |
7038 | if (name[2] == 'r' && | |
7039 | name[3] == 'm' && | |
7040 | name[4] == 'a' && | |
7041 | name[5] == 't') | |
7042 | { /* format */ | |
7043 | return KEY_format; | |
7044 | } | |
7045 | ||
7046 | goto unknown; | |
7047 | ||
7048 | default: | |
7049 | goto unknown; | |
7050 | } | |
7051 | ||
7052 | case 'g': | |
7053 | if (name[1] == 'm' && | |
7054 | name[2] == 't' && | |
7055 | name[3] == 'i' && | |
7056 | name[4] == 'm' && | |
7057 | name[5] == 'e') | |
7058 | { /* gmtime */ | |
7059 | return -KEY_gmtime; | |
7060 | } | |
7061 | ||
7062 | goto unknown; | |
7063 | ||
7064 | case 'l': | |
7065 | switch (name[1]) | |
7066 | { | |
7067 | case 'e': | |
7068 | if (name[2] == 'n' && | |
7069 | name[3] == 'g' && | |
7070 | name[4] == 't' && | |
7071 | name[5] == 'h') | |
7072 | { /* length */ | |
7073 | return -KEY_length; | |
7074 | } | |
7075 | ||
7076 | goto unknown; | |
7077 | ||
7078 | case 'i': | |
7079 | if (name[2] == 's' && | |
7080 | name[3] == 't' && | |
7081 | name[4] == 'e' && | |
7082 | name[5] == 'n') | |
7083 | { /* listen */ | |
7084 | return -KEY_listen; | |
7085 | } | |
7086 | ||
7087 | goto unknown; | |
7088 | ||
7089 | default: | |
7090 | goto unknown; | |
7091 | } | |
7092 | ||
7093 | case 'm': | |
7094 | if (name[1] == 's' && | |
7095 | name[2] == 'g') | |
7096 | { | |
7097 | switch (name[3]) | |
7098 | { | |
7099 | case 'c': | |
7100 | if (name[4] == 't' && | |
7101 | name[5] == 'l') | |
7102 | { /* msgctl */ | |
7103 | return -KEY_msgctl; | |
7104 | } | |
7105 | ||
7106 | goto unknown; | |
7107 | ||
7108 | case 'g': | |
7109 | if (name[4] == 'e' && | |
7110 | name[5] == 't') | |
7111 | { /* msgget */ | |
7112 | return -KEY_msgget; | |
7113 | } | |
7114 | ||
7115 | goto unknown; | |
7116 | ||
7117 | case 'r': | |
7118 | if (name[4] == 'c' && | |
7119 | name[5] == 'v') | |
7120 | { /* msgrcv */ | |
7121 | return -KEY_msgrcv; | |
7122 | } | |
7123 | ||
7124 | goto unknown; | |
7125 | ||
7126 | case 's': | |
7127 | if (name[4] == 'n' && | |
7128 | name[5] == 'd') | |
7129 | { /* msgsnd */ | |
7130 | return -KEY_msgsnd; | |
7131 | } | |
7132 | ||
7133 | goto unknown; | |
7134 | ||
7135 | default: | |
7136 | goto unknown; | |
7137 | } | |
7138 | } | |
7139 | ||
7140 | goto unknown; | |
7141 | ||
7142 | case 'p': | |
7143 | if (name[1] == 'r' && | |
7144 | name[2] == 'i' && | |
7145 | name[3] == 'n' && | |
7146 | name[4] == 't' && | |
7147 | name[5] == 'f') | |
7148 | { /* printf */ | |
7149 | return KEY_printf; | |
7150 | } | |
7151 | ||
7152 | goto unknown; | |
7153 | ||
7154 | case 'r': | |
7155 | switch (name[1]) | |
7156 | { | |
7157 | case 'e': | |
7158 | switch (name[2]) | |
7159 | { | |
7160 | case 'n': | |
7161 | if (name[3] == 'a' && | |
7162 | name[4] == 'm' && | |
7163 | name[5] == 'e') | |
7164 | { /* rename */ | |
7165 | return -KEY_rename; | |
7166 | } | |
7167 | ||
7168 | goto unknown; | |
7169 | ||
7170 | case 't': | |
7171 | if (name[3] == 'u' && | |
7172 | name[4] == 'r' && | |
7173 | name[5] == 'n') | |
7174 | { /* return */ | |
7175 | return KEY_return; | |
7176 | } | |
7177 | ||
7178 | goto unknown; | |
7179 | ||
7180 | default: | |
7181 | goto unknown; | |
7182 | } | |
7183 | ||
7184 | case 'i': | |
7185 | if (name[2] == 'n' && | |
7186 | name[3] == 'd' && | |
7187 | name[4] == 'e' && | |
7188 | name[5] == 'x') | |
7189 | { /* rindex */ | |
7190 | return -KEY_rindex; | |
7191 | } | |
7192 | ||
7193 | goto unknown; | |
7194 | ||
7195 | default: | |
7196 | goto unknown; | |
7197 | } | |
7198 | ||
7199 | case 's': | |
7200 | switch (name[1]) | |
7201 | { | |
7202 | case 'c': | |
7203 | if (name[2] == 'a' && | |
7204 | name[3] == 'l' && | |
7205 | name[4] == 'a' && | |
7206 | name[5] == 'r') | |
7207 | { /* scalar */ | |
7208 | return KEY_scalar; | |
7209 | } | |
7210 | ||
7211 | goto unknown; | |
7212 | ||
7213 | case 'e': | |
7214 | switch (name[2]) | |
7215 | { | |
7216 | case 'l': | |
7217 | if (name[3] == 'e' && | |
7218 | name[4] == 'c' && | |
7219 | name[5] == 't') | |
7220 | { /* select */ | |
7221 | return -KEY_select; | |
7222 | } | |
7223 | ||
7224 | goto unknown; | |
7225 | ||
7226 | case 'm': | |
7227 | switch (name[3]) | |
7228 | { | |
7229 | case 'c': | |
7230 | if (name[4] == 't' && | |
7231 | name[5] == 'l') | |
7232 | { /* semctl */ | |
7233 | return -KEY_semctl; | |
7234 | } | |
7235 | ||
7236 | goto unknown; | |
7237 | ||
7238 | case 'g': | |
7239 | if (name[4] == 'e' && | |
7240 | name[5] == 't') | |
7241 | { /* semget */ | |
7242 | return -KEY_semget; | |
7243 | } | |
7244 | ||
7245 | goto unknown; | |
7246 | ||
7247 | default: | |
7248 | goto unknown; | |
7249 | } | |
7250 | ||
7251 | default: | |
7252 | goto unknown; | |
7253 | } | |
7254 | ||
7255 | case 'h': | |
7256 | if (name[2] == 'm') | |
7257 | { | |
7258 | switch (name[3]) | |
7259 | { | |
7260 | case 'c': | |
7261 | if (name[4] == 't' && | |
7262 | name[5] == 'l') | |
7263 | { /* shmctl */ | |
7264 | return -KEY_shmctl; | |
7265 | } | |
7266 | ||
7267 | goto unknown; | |
7268 | ||
7269 | case 'g': | |
7270 | if (name[4] == 'e' && | |
7271 | name[5] == 't') | |
7272 | { /* shmget */ | |
7273 | return -KEY_shmget; | |
7274 | } | |
7275 | ||
7276 | goto unknown; | |
7277 | ||
7278 | default: | |
7279 | goto unknown; | |
7280 | } | |
7281 | } | |
7282 | ||
7283 | goto unknown; | |
7284 | ||
7285 | case 'o': | |
7286 | if (name[2] == 'c' && | |
7287 | name[3] == 'k' && | |
7288 | name[4] == 'e' && | |
7289 | name[5] == 't') | |
7290 | { /* socket */ | |
7291 | return -KEY_socket; | |
7292 | } | |
7293 | ||
7294 | goto unknown; | |
7295 | ||
7296 | case 'p': | |
7297 | if (name[2] == 'l' && | |
7298 | name[3] == 'i' && | |
7299 | name[4] == 'c' && | |
7300 | name[5] == 'e') | |
7301 | { /* splice */ | |
7302 | return -KEY_splice; | |
7303 | } | |
7304 | ||
7305 | goto unknown; | |
7306 | ||
7307 | case 'u': | |
7308 | if (name[2] == 'b' && | |
7309 | name[3] == 's' && | |
7310 | name[4] == 't' && | |
7311 | name[5] == 'r') | |
7312 | { /* substr */ | |
7313 | return -KEY_substr; | |
7314 | } | |
7315 | ||
7316 | goto unknown; | |
7317 | ||
7318 | case 'y': | |
7319 | if (name[2] == 's' && | |
7320 | name[3] == 't' && | |
7321 | name[4] == 'e' && | |
7322 | name[5] == 'm') | |
7323 | { /* system */ | |
7324 | return -KEY_system; | |
7325 | } | |
7326 | ||
7327 | goto unknown; | |
7328 | ||
7329 | default: | |
7330 | goto unknown; | |
7331 | } | |
7332 | ||
7333 | case 'u': | |
7334 | if (name[1] == 'n') | |
7335 | { | |
7336 | switch (name[2]) | |
7337 | { | |
7338 | case 'l': | |
7339 | switch (name[3]) | |
7340 | { | |
7341 | case 'e': | |
7342 | if (name[4] == 's' && | |
7343 | name[5] == 's') | |
7344 | { /* unless */ | |
7345 | return KEY_unless; | |
7346 | } | |
7347 | ||
7348 | goto unknown; | |
7349 | ||
7350 | case 'i': | |
7351 | if (name[4] == 'n' && | |
7352 | name[5] == 'k') | |
7353 | { /* unlink */ | |
7354 | return -KEY_unlink; | |
7355 | } | |
7356 | ||
7357 | goto unknown; | |
7358 | ||
7359 | default: | |
7360 | goto unknown; | |
7361 | } | |
7362 | ||
7363 | case 'p': | |
7364 | if (name[3] == 'a' && | |
7365 | name[4] == 'c' && | |
7366 | name[5] == 'k') | |
7367 | { /* unpack */ | |
7368 | return -KEY_unpack; | |
7369 | } | |
7370 | ||
7371 | goto unknown; | |
7372 | ||
7373 | default: | |
7374 | goto unknown; | |
7375 | } | |
7376 | } | |
7377 | ||
7378 | goto unknown; | |
7379 | ||
7380 | case 'v': | |
7381 | if (name[1] == 'a' && | |
7382 | name[2] == 'l' && | |
7383 | name[3] == 'u' && | |
7384 | name[4] == 'e' && | |
7385 | name[5] == 's') | |
7386 | { /* values */ | |
7387 | return -KEY_values; | |
7388 | } | |
7389 | ||
7390 | goto unknown; | |
7391 | ||
7392 | default: | |
7393 | goto unknown; | |
7394 | } | |
7395 | ||
7396 | case 7: /* 28 tokens of length 7 */ | |
7397 | switch (name[0]) | |
7398 | { | |
7399 | case 'D': | |
7400 | if (name[1] == 'E' && | |
7401 | name[2] == 'S' && | |
7402 | name[3] == 'T' && | |
7403 | name[4] == 'R' && | |
7404 | name[5] == 'O' && | |
7405 | name[6] == 'Y') | |
7406 | { /* DESTROY */ | |
7407 | return KEY_DESTROY; | |
7408 | } | |
7409 | ||
7410 | goto unknown; | |
7411 | ||
7412 | case '_': | |
7413 | if (name[1] == '_' && | |
7414 | name[2] == 'E' && | |
7415 | name[3] == 'N' && | |
7416 | name[4] == 'D' && | |
7417 | name[5] == '_' && | |
7418 | name[6] == '_') | |
7419 | { /* __END__ */ | |
7420 | return KEY___END__; | |
7421 | } | |
7422 | ||
7423 | goto unknown; | |
7424 | ||
7425 | case 'b': | |
7426 | if (name[1] == 'i' && | |
7427 | name[2] == 'n' && | |
7428 | name[3] == 'm' && | |
7429 | name[4] == 'o' && | |
7430 | name[5] == 'd' && | |
7431 | name[6] == 'e') | |
7432 | { /* binmode */ | |
7433 | return -KEY_binmode; | |
7434 | } | |
7435 | ||
7436 | goto unknown; | |
7437 | ||
7438 | case 'c': | |
7439 | if (name[1] == 'o' && | |
7440 | name[2] == 'n' && | |
7441 | name[3] == 'n' && | |
7442 | name[4] == 'e' && | |
7443 | name[5] == 'c' && | |
7444 | name[6] == 't') | |
7445 | { /* connect */ | |
7446 | return -KEY_connect; | |
7447 | } | |
7448 | ||
7449 | goto unknown; | |
7450 | ||
7451 | case 'd': | |
7452 | switch (name[1]) | |
7453 | { | |
7454 | case 'b': | |
7455 | if (name[2] == 'm' && | |
7456 | name[3] == 'o' && | |
7457 | name[4] == 'p' && | |
7458 | name[5] == 'e' && | |
7459 | name[6] == 'n') | |
7460 | { /* dbmopen */ | |
7461 | return -KEY_dbmopen; | |
7462 | } | |
7463 | ||
7464 | goto unknown; | |
7465 | ||
7466 | case 'e': | |
7467 | if (name[2] == 'f' && | |
7468 | name[3] == 'i' && | |
7469 | name[4] == 'n' && | |
7470 | name[5] == 'e' && | |
7471 | name[6] == 'd') | |
7472 | { /* defined */ | |
7473 | return KEY_defined; | |
7474 | } | |
7475 | ||
7476 | goto unknown; | |
7477 | ||
7478 | default: | |
7479 | goto unknown; | |
7480 | } | |
7481 | ||
7482 | case 'f': | |
7483 | if (name[1] == 'o' && | |
7484 | name[2] == 'r' && | |
7485 | name[3] == 'e' && | |
7486 | name[4] == 'a' && | |
7487 | name[5] == 'c' && | |
7488 | name[6] == 'h') | |
7489 | { /* foreach */ | |
7490 | return KEY_foreach; | |
7491 | } | |
7492 | ||
7493 | goto unknown; | |
7494 | ||
7495 | case 'g': | |
7496 | if (name[1] == 'e' && | |
7497 | name[2] == 't' && | |
7498 | name[3] == 'p') | |
7499 | { | |
7500 | switch (name[4]) | |
7501 | { | |
7502 | case 'g': | |
7503 | if (name[5] == 'r' && | |
7504 | name[6] == 'p') | |
7505 | { /* getpgrp */ | |
7506 | return -KEY_getpgrp; | |
7507 | } | |
7508 | ||
7509 | goto unknown; | |
7510 | ||
7511 | case 'p': | |
7512 | if (name[5] == 'i' && | |
7513 | name[6] == 'd') | |
7514 | { /* getppid */ | |
7515 | return -KEY_getppid; | |
7516 | } | |
7517 | ||
7518 | goto unknown; | |
7519 | ||
7520 | default: | |
7521 | goto unknown; | |
7522 | } | |
7523 | } | |
7524 | ||
7525 | goto unknown; | |
7526 | ||
7527 | case 'l': | |
7528 | if (name[1] == 'c' && | |
7529 | name[2] == 'f' && | |
7530 | name[3] == 'i' && | |
7531 | name[4] == 'r' && | |
7532 | name[5] == 's' && | |
7533 | name[6] == 't') | |
7534 | { /* lcfirst */ | |
7535 | return -KEY_lcfirst; | |
7536 | } | |
7537 | ||
7538 | goto unknown; | |
7539 | ||
7540 | case 'o': | |
7541 | if (name[1] == 'p' && | |
7542 | name[2] == 'e' && | |
7543 | name[3] == 'n' && | |
7544 | name[4] == 'd' && | |
7545 | name[5] == 'i' && | |
7546 | name[6] == 'r') | |
7547 | { /* opendir */ | |
7548 | return -KEY_opendir; | |
7549 | } | |
7550 | ||
7551 | goto unknown; | |
7552 | ||
7553 | case 'p': | |
7554 | if (name[1] == 'a' && | |
7555 | name[2] == 'c' && | |
7556 | name[3] == 'k' && | |
7557 | name[4] == 'a' && | |
7558 | name[5] == 'g' && | |
7559 | name[6] == 'e') | |
7560 | { /* package */ | |
7561 | return KEY_package; | |
7562 | } | |
7563 | ||
7564 | goto unknown; | |
7565 | ||
7566 | case 'r': | |
7567 | if (name[1] == 'e') | |
7568 | { | |
7569 | switch (name[2]) | |
7570 | { | |
7571 | case 'a': | |
7572 | if (name[3] == 'd' && | |
7573 | name[4] == 'd' && | |
7574 | name[5] == 'i' && | |
7575 | name[6] == 'r') | |
7576 | { /* readdir */ | |
7577 | return -KEY_readdir; | |
7578 | } | |
7579 | ||
7580 | goto unknown; | |
7581 | ||
7582 | case 'q': | |
7583 | if (name[3] == 'u' && | |
7584 | name[4] == 'i' && | |
7585 | name[5] == 'r' && | |
7586 | name[6] == 'e') | |
7587 | { /* require */ | |
7588 | return KEY_require; | |
7589 | } | |
7590 | ||
7591 | goto unknown; | |
7592 | ||
7593 | case 'v': | |
7594 | if (name[3] == 'e' && | |
7595 | name[4] == 'r' && | |
7596 | name[5] == 's' && | |
7597 | name[6] == 'e') | |
7598 | { /* reverse */ | |
7599 | return -KEY_reverse; | |
7600 | } | |
7601 | ||
7602 | goto unknown; | |
7603 | ||
7604 | default: | |
7605 | goto unknown; | |
7606 | } | |
7607 | } | |
7608 | ||
7609 | goto unknown; | |
7610 | ||
7611 | case 's': | |
7612 | switch (name[1]) | |
7613 | { | |
7614 | case 'e': | |
7615 | switch (name[2]) | |
7616 | { | |
7617 | case 'e': | |
7618 | if (name[3] == 'k' && | |
7619 | name[4] == 'd' && | |
7620 | name[5] == 'i' && | |
7621 | name[6] == 'r') | |
7622 | { /* seekdir */ | |
7623 | return -KEY_seekdir; | |
7624 | } | |
7625 | ||
7626 | goto unknown; | |
7627 | ||
7628 | case 't': | |
7629 | if (name[3] == 'p' && | |
7630 | name[4] == 'g' && | |
7631 | name[5] == 'r' && | |
7632 | name[6] == 'p') | |
7633 | { /* setpgrp */ | |
7634 | return -KEY_setpgrp; | |
7635 | } | |
7636 | ||
7637 | goto unknown; | |
7638 | ||
7639 | default: | |
7640 | goto unknown; | |
7641 | } | |
7642 | ||
7643 | case 'h': | |
7644 | if (name[2] == 'm' && | |
7645 | name[3] == 'r' && | |
7646 | name[4] == 'e' && | |
7647 | name[5] == 'a' && | |
7648 | name[6] == 'd') | |
7649 | { /* shmread */ | |
7650 | return -KEY_shmread; | |
7651 | } | |
7652 | ||
7653 | goto unknown; | |
7654 | ||
7655 | case 'p': | |
7656 | if (name[2] == 'r' && | |
7657 | name[3] == 'i' && | |
7658 | name[4] == 'n' && | |
7659 | name[5] == 't' && | |
7660 | name[6] == 'f') | |
7661 | { /* sprintf */ | |
7662 | return -KEY_sprintf; | |
7663 | } | |
7664 | ||
7665 | goto unknown; | |
7666 | ||
7667 | case 'y': | |
7668 | switch (name[2]) | |
7669 | { | |
7670 | case 'm': | |
7671 | if (name[3] == 'l' && | |
7672 | name[4] == 'i' && | |
7673 | name[5] == 'n' && | |
7674 | name[6] == 'k') | |
7675 | { /* symlink */ | |
7676 | return -KEY_symlink; | |
7677 | } | |
7678 | ||
7679 | goto unknown; | |
7680 | ||
7681 | case 's': | |
7682 | switch (name[3]) | |
7683 | { | |
7684 | case 'c': | |
7685 | if (name[4] == 'a' && | |
7686 | name[5] == 'l' && | |
7687 | name[6] == 'l') | |
7688 | { /* syscall */ | |
7689 | return -KEY_syscall; | |
7690 | } | |
7691 | ||
7692 | goto unknown; | |
7693 | ||
7694 | case 'o': | |
7695 | if (name[4] == 'p' && | |
7696 | name[5] == 'e' && | |
7697 | name[6] == 'n') | |
7698 | { /* sysopen */ | |
7699 | return -KEY_sysopen; | |
7700 | } | |
7701 | ||
7702 | goto unknown; | |
7703 | ||
7704 | case 'r': | |
7705 | if (name[4] == 'e' && | |
7706 | name[5] == 'a' && | |
7707 | name[6] == 'd') | |
7708 | { /* sysread */ | |
7709 | return -KEY_sysread; | |
7710 | } | |
7711 | ||
7712 | goto unknown; | |
7713 | ||
7714 | case 's': | |
7715 | if (name[4] == 'e' && | |
7716 | name[5] == 'e' && | |
7717 | name[6] == 'k') | |
7718 | { /* sysseek */ | |
7719 | return -KEY_sysseek; | |
7720 | } | |
7721 | ||
7722 | goto unknown; | |
7723 | ||
7724 | default: | |
7725 | goto unknown; | |
7726 | } | |
7727 | ||
7728 | default: | |
7729 | goto unknown; | |
7730 | } | |
7731 | ||
7732 | default: | |
7733 | goto unknown; | |
7734 | } | |
7735 | ||
7736 | case 't': | |
7737 | if (name[1] == 'e' && | |
7738 | name[2] == 'l' && | |
7739 | name[3] == 'l' && | |
7740 | name[4] == 'd' && | |
7741 | name[5] == 'i' && | |
7742 | name[6] == 'r') | |
7743 | { /* telldir */ | |
7744 | return -KEY_telldir; | |
7745 | } | |
7746 | ||
7747 | goto unknown; | |
7748 | ||
7749 | case 'u': | |
7750 | switch (name[1]) | |
7751 | { | |
7752 | case 'c': | |
7753 | if (name[2] == 'f' && | |
7754 | name[3] == 'i' && | |
7755 | name[4] == 'r' && | |
7756 | name[5] == 's' && | |
7757 | name[6] == 't') | |
7758 | { /* ucfirst */ | |
7759 | return -KEY_ucfirst; | |
7760 | } | |
7761 | ||
7762 | goto unknown; | |
7763 | ||
7764 | case 'n': | |
7765 | if (name[2] == 's' && | |
7766 | name[3] == 'h' && | |
7767 | name[4] == 'i' && | |
7768 | name[5] == 'f' && | |
7769 | name[6] == 't') | |
7770 | { /* unshift */ | |
7771 | return -KEY_unshift; | |
7772 | } | |
7773 | ||
7774 | goto unknown; | |
7775 | ||
7776 | default: | |
7777 | goto unknown; | |
7778 | } | |
7779 | ||
7780 | case 'w': | |
7781 | if (name[1] == 'a' && | |
7782 | name[2] == 'i' && | |
7783 | name[3] == 't' && | |
7784 | name[4] == 'p' && | |
7785 | name[5] == 'i' && | |
7786 | name[6] == 'd') | |
7787 | { /* waitpid */ | |
7788 | return -KEY_waitpid; | |
7789 | } | |
7790 | ||
7791 | goto unknown; | |
7792 | ||
7793 | default: | |
7794 | goto unknown; | |
7795 | } | |
7796 | ||
7797 | case 8: /* 26 tokens of length 8 */ | |
7798 | switch (name[0]) | |
7799 | { | |
7800 | case 'A': | |
7801 | if (name[1] == 'U' && | |
7802 | name[2] == 'T' && | |
7803 | name[3] == 'O' && | |
7804 | name[4] == 'L' && | |
7805 | name[5] == 'O' && | |
7806 | name[6] == 'A' && | |
7807 | name[7] == 'D') | |
7808 | { /* AUTOLOAD */ | |
7809 | return KEY_AUTOLOAD; | |
7810 | } | |
7811 | ||
7812 | goto unknown; | |
7813 | ||
7814 | case '_': | |
7815 | if (name[1] == '_') | |
7816 | { | |
7817 | switch (name[2]) | |
7818 | { | |
7819 | case 'D': | |
7820 | if (name[3] == 'A' && | |
7821 | name[4] == 'T' && | |
7822 | name[5] == 'A' && | |
7823 | name[6] == '_' && | |
7824 | name[7] == '_') | |
7825 | { /* __DATA__ */ | |
7826 | return KEY___DATA__; | |
7827 | } | |
7828 | ||
7829 | goto unknown; | |
7830 | ||
7831 | case 'F': | |
7832 | if (name[3] == 'I' && | |
7833 | name[4] == 'L' && | |
7834 | name[5] == 'E' && | |
7835 | name[6] == '_' && | |
7836 | name[7] == '_') | |
7837 | { /* __FILE__ */ | |
7838 | return -KEY___FILE__; | |
7839 | } | |
7840 | ||
7841 | goto unknown; | |
7842 | ||
7843 | case 'L': | |
7844 | if (name[3] == 'I' && | |
7845 | name[4] == 'N' && | |
7846 | name[5] == 'E' && | |
7847 | name[6] == '_' && | |
7848 | name[7] == '_') | |
7849 | { /* __LINE__ */ | |
7850 | return -KEY___LINE__; | |
7851 | } | |
7852 | ||
7853 | goto unknown; | |
7854 | ||
7855 | default: | |
7856 | goto unknown; | |
7857 | } | |
7858 | } | |
7859 | ||
7860 | goto unknown; | |
7861 | ||
7862 | case 'c': | |
7863 | switch (name[1]) | |
7864 | { | |
7865 | case 'l': | |
7866 | if (name[2] == 'o' && | |
7867 | name[3] == 's' && | |
7868 | name[4] == 'e' && | |
7869 | name[5] == 'd' && | |
7870 | name[6] == 'i' && | |
7871 | name[7] == 'r') | |
7872 | { /* closedir */ | |
7873 | return -KEY_closedir; | |
7874 | } | |
7875 | ||
7876 | goto unknown; | |
7877 | ||
7878 | case 'o': | |
7879 | if (name[2] == 'n' && | |
7880 | name[3] == 't' && | |
7881 | name[4] == 'i' && | |
7882 | name[5] == 'n' && | |
7883 | name[6] == 'u' && | |
7884 | name[7] == 'e') | |
7885 | { /* continue */ | |
7886 | return -KEY_continue; | |
7887 | } | |
7888 | ||
7889 | goto unknown; | |
7890 | ||
7891 | default: | |
7892 | goto unknown; | |
7893 | } | |
7894 | ||
7895 | case 'd': | |
7896 | if (name[1] == 'b' && | |
7897 | name[2] == 'm' && | |
7898 | name[3] == 'c' && | |
7899 | name[4] == 'l' && | |
7900 | name[5] == 'o' && | |
7901 | name[6] == 's' && | |
7902 | name[7] == 'e') | |
7903 | { /* dbmclose */ | |
7904 | return -KEY_dbmclose; | |
7905 | } | |
7906 | ||
7907 | goto unknown; | |
7908 | ||
7909 | case 'e': | |
7910 | if (name[1] == 'n' && | |
7911 | name[2] == 'd') | |
7912 | { | |
7913 | switch (name[3]) | |
7914 | { | |
7915 | case 'g': | |
7916 | if (name[4] == 'r' && | |
7917 | name[5] == 'e' && | |
7918 | name[6] == 'n' && | |
7919 | name[7] == 't') | |
7920 | { /* endgrent */ | |
7921 | return -KEY_endgrent; | |
7922 | } | |
7923 | ||
7924 | goto unknown; | |
7925 | ||
7926 | case 'p': | |
7927 | if (name[4] == 'w' && | |
7928 | name[5] == 'e' && | |
7929 | name[6] == 'n' && | |
7930 | name[7] == 't') | |
7931 | { /* endpwent */ | |
7932 | return -KEY_endpwent; | |
7933 | } | |
7934 | ||
7935 | goto unknown; | |
7936 | ||
7937 | default: | |
7938 | goto unknown; | |
7939 | } | |
7940 | } | |
7941 | ||
7942 | goto unknown; | |
7943 | ||
7944 | case 'f': | |
7945 | if (name[1] == 'o' && | |
7946 | name[2] == 'r' && | |
7947 | name[3] == 'm' && | |
7948 | name[4] == 'l' && | |
7949 | name[5] == 'i' && | |
7950 | name[6] == 'n' && | |
7951 | name[7] == 'e') | |
7952 | { /* formline */ | |
7953 | return -KEY_formline; | |
7954 | } | |
7955 | ||
7956 | goto unknown; | |
7957 | ||
7958 | case 'g': | |
7959 | if (name[1] == 'e' && | |
7960 | name[2] == 't') | |
7961 | { | |
7962 | switch (name[3]) | |
7963 | { | |
7964 | case 'g': | |
7965 | if (name[4] == 'r') | |
7966 | { | |
7967 | switch (name[5]) | |
7968 | { | |
7969 | case 'e': | |
7970 | if (name[6] == 'n' && | |
7971 | name[7] == 't') | |
7972 | { /* getgrent */ | |
7973 | return -KEY_getgrent; | |
7974 | } | |
7975 | ||
7976 | goto unknown; | |
7977 | ||
7978 | case 'g': | |
7979 | if (name[6] == 'i' && | |
7980 | name[7] == 'd') | |
7981 | { /* getgrgid */ | |
7982 | return -KEY_getgrgid; | |
7983 | } | |
7984 | ||
7985 | goto unknown; | |
7986 | ||
7987 | case 'n': | |
7988 | if (name[6] == 'a' && | |
7989 | name[7] == 'm') | |
7990 | { /* getgrnam */ | |
7991 | return -KEY_getgrnam; | |
7992 | } | |
7993 | ||
7994 | goto unknown; | |
7995 | ||
7996 | default: | |
7997 | goto unknown; | |
7998 | } | |
7999 | } | |
8000 | ||
8001 | goto unknown; | |
8002 | ||
8003 | case 'l': | |
8004 | if (name[4] == 'o' && | |
8005 | name[5] == 'g' && | |
8006 | name[6] == 'i' && | |
8007 | name[7] == 'n') | |
8008 | { /* getlogin */ | |
8009 | return -KEY_getlogin; | |
8010 | } | |
8011 | ||
8012 | goto unknown; | |
8013 | ||
8014 | case 'p': | |
8015 | if (name[4] == 'w') | |
8016 | { | |
8017 | switch (name[5]) | |
8018 | { | |
8019 | case 'e': | |
8020 | if (name[6] == 'n' && | |
8021 | name[7] == 't') | |
8022 | { /* getpwent */ | |
8023 | return -KEY_getpwent; | |
8024 | } | |
8025 | ||
8026 | goto unknown; | |
8027 | ||
8028 | case 'n': | |
8029 | if (name[6] == 'a' && | |
8030 | name[7] == 'm') | |
8031 | { /* getpwnam */ | |
8032 | return -KEY_getpwnam; | |
8033 | } | |
8034 | ||
8035 | goto unknown; | |
8036 | ||
8037 | case 'u': | |
8038 | if (name[6] == 'i' && | |
8039 | name[7] == 'd') | |
8040 | { /* getpwuid */ | |
8041 | return -KEY_getpwuid; | |
8042 | } | |
8043 | ||
8044 | goto unknown; | |
8045 | ||
8046 | default: | |
8047 | goto unknown; | |
8048 | } | |
8049 | } | |
8050 | ||
8051 | goto unknown; | |
8052 | ||
8053 | default: | |
8054 | goto unknown; | |
8055 | } | |
8056 | } | |
8057 | ||
8058 | goto unknown; | |
8059 | ||
8060 | case 'r': | |
8061 | if (name[1] == 'e' && | |
8062 | name[2] == 'a' && | |
8063 | name[3] == 'd') | |
8064 | { | |
8065 | switch (name[4]) | |
8066 | { | |
8067 | case 'l': | |
8068 | if (name[5] == 'i' && | |
8069 | name[6] == 'n') | |
8070 | { | |
8071 | switch (name[7]) | |
8072 | { | |
8073 | case 'e': | |
8074 | { /* readline */ | |
8075 | return -KEY_readline; | |
8076 | } | |
8077 | ||
64446b2f NC |
8078 | case 'k': |
8079 | { /* readlink */ | |
8080 | return -KEY_readlink; | |
8081 | } | |
8082 | ||
64446b2f NC |
8083 | default: |
8084 | goto unknown; | |
8085 | } | |
8086 | } | |
8087 | ||
8088 | goto unknown; | |
8089 | ||
8090 | case 'p': | |
8091 | if (name[5] == 'i' && | |
8092 | name[6] == 'p' && | |
8093 | name[7] == 'e') | |
8094 | { /* readpipe */ | |
8095 | return -KEY_readpipe; | |
8096 | } | |
8097 | ||
8098 | goto unknown; | |
8099 | ||
8100 | default: | |
8101 | goto unknown; | |
8102 | } | |
8103 | } | |
8104 | ||
8105 | goto unknown; | |
8106 | ||
8107 | case 's': | |
8108 | switch (name[1]) | |
8109 | { | |
8110 | case 'e': | |
8111 | if (name[2] == 't') | |
8112 | { | |
8113 | switch (name[3]) | |
8114 | { | |
8115 | case 'g': | |
8116 | if (name[4] == 'r' && | |
8117 | name[5] == 'e' && | |
8118 | name[6] == 'n' && | |
8119 | name[7] == 't') | |
8120 | { /* setgrent */ | |
8121 | return -KEY_setgrent; | |
8122 | } | |
8123 | ||
8124 | goto unknown; | |
8125 | ||
8126 | case 'p': | |
8127 | if (name[4] == 'w' && | |
8128 | name[5] == 'e' && | |
8129 | name[6] == 'n' && | |
8130 | name[7] == 't') | |
8131 | { /* setpwent */ | |
8132 | return -KEY_setpwent; | |
8133 | } | |
8134 | ||
8135 | goto unknown; | |
8136 | ||
8137 | default: | |
8138 | goto unknown; | |
8139 | } | |
8140 | } | |
8141 | ||
8142 | goto unknown; | |
8143 | ||
8144 | case 'h': | |
8145 | switch (name[2]) | |
8146 | { | |
8147 | case 'm': | |
8148 | if (name[3] == 'w' && | |
8149 | name[4] == 'r' && | |
8150 | name[5] == 'i' && | |
8151 | name[6] == 't' && | |
8152 | name[7] == 'e') | |
8153 | { /* shmwrite */ | |
8154 | return -KEY_shmwrite; | |
8155 | } | |
8156 | ||
8157 | goto unknown; | |
8158 | ||
8159 | case 'u': | |
8160 | if (name[3] == 't' && | |
8161 | name[4] == 'd' && | |
8162 | name[5] == 'o' && | |
8163 | name[6] == 'w' && | |
8164 | name[7] == 'n') | |
8165 | { /* shutdown */ | |
8166 | return -KEY_shutdown; | |
8167 | } | |
8168 | ||
8169 | goto unknown; | |
8170 | ||
8171 | default: | |
8172 | goto unknown; | |
8173 | } | |
8174 | ||
8175 | case 'y': | |
8176 | if (name[2] == 's' && | |
8177 | name[3] == 'w' && | |
8178 | name[4] == 'r' && | |
8179 | name[5] == 'i' && | |
8180 | name[6] == 't' && | |
8181 | name[7] == 'e') | |
8182 | { /* syswrite */ | |
8183 | return -KEY_syswrite; | |
8184 | } | |
8185 | ||
8186 | goto unknown; | |
8187 | ||
8188 | default: | |
8189 | goto unknown; | |
8190 | } | |
8191 | ||
8192 | case 't': | |
8193 | if (name[1] == 'r' && | |
8194 | name[2] == 'u' && | |
8195 | name[3] == 'n' && | |
8196 | name[4] == 'c' && | |
8197 | name[5] == 'a' && | |
8198 | name[6] == 't' && | |
8199 | name[7] == 'e') | |
8200 | { /* truncate */ | |
8201 | return -KEY_truncate; | |
8202 | } | |
8203 | ||
8204 | goto unknown; | |
8205 | ||
8206 | default: | |
8207 | goto unknown; | |
8208 | } | |
8209 | ||
8210 | case 9: /* 8 tokens of length 9 */ | |
8211 | switch (name[0]) | |
8212 | { | |
8213 | case 'e': | |
8214 | if (name[1] == 'n' && | |
8215 | name[2] == 'd' && | |
8216 | name[3] == 'n' && | |
8217 | name[4] == 'e' && | |
8218 | name[5] == 't' && | |
8219 | name[6] == 'e' && | |
8220 | name[7] == 'n' && | |
8221 | name[8] == 't') | |
8222 | { /* endnetent */ | |
8223 | return -KEY_endnetent; | |
8224 | } | |
8225 | ||
8226 | goto unknown; | |
8227 | ||
8228 | case 'g': | |
8229 | if (name[1] == 'e' && | |
8230 | name[2] == 't' && | |
8231 | name[3] == 'n' && | |
8232 | name[4] == 'e' && | |
8233 | name[5] == 't' && | |
8234 | name[6] == 'e' && | |
8235 | name[7] == 'n' && | |
8236 | name[8] == 't') | |
8237 | { /* getnetent */ | |
8238 | return -KEY_getnetent; | |
8239 | } | |
8240 | ||
8241 | goto unknown; | |
8242 | ||
8243 | case 'l': | |
8244 | if (name[1] == 'o' && | |
8245 | name[2] == 'c' && | |
8246 | name[3] == 'a' && | |
8247 | name[4] == 'l' && | |
8248 | name[5] == 't' && | |
8249 | name[6] == 'i' && | |
8250 | name[7] == 'm' && | |
8251 | name[8] == 'e') | |
8252 | { /* localtime */ | |
8253 | return -KEY_localtime; | |
8254 | } | |
8255 | ||
8256 | goto unknown; | |
8257 | ||
8258 | case 'p': | |
8259 | if (name[1] == 'r' && | |
8260 | name[2] == 'o' && | |
8261 | name[3] == 't' && | |
8262 | name[4] == 'o' && | |
8263 | name[5] == 't' && | |
8264 | name[6] == 'y' && | |
8265 | name[7] == 'p' && | |
8266 | name[8] == 'e') | |
8267 | { /* prototype */ | |
8268 | return KEY_prototype; | |
8269 | } | |
8270 | ||
8271 | goto unknown; | |
8272 | ||
8273 | case 'q': | |
8274 | if (name[1] == 'u' && | |
8275 | name[2] == 'o' && | |
8276 | name[3] == 't' && | |
8277 | name[4] == 'e' && | |
8278 | name[5] == 'm' && | |
8279 | name[6] == 'e' && | |
8280 | name[7] == 't' && | |
8281 | name[8] == 'a') | |
8282 | { /* quotemeta */ | |
8283 | return -KEY_quotemeta; | |
8284 | } | |
8285 | ||
8286 | goto unknown; | |
8287 | ||
8288 | case 'r': | |
8289 | if (name[1] == 'e' && | |
8290 | name[2] == 'w' && | |
8291 | name[3] == 'i' && | |
8292 | name[4] == 'n' && | |
8293 | name[5] == 'd' && | |
8294 | name[6] == 'd' && | |
8295 | name[7] == 'i' && | |
8296 | name[8] == 'r') | |
8297 | { /* rewinddir */ | |
8298 | return -KEY_rewinddir; | |
8299 | } | |
8300 | ||
8301 | goto unknown; | |
8302 | ||
8303 | case 's': | |
8304 | if (name[1] == 'e' && | |
8305 | name[2] == 't' && | |
8306 | name[3] == 'n' && | |
8307 | name[4] == 'e' && | |
8308 | name[5] == 't' && | |
8309 | name[6] == 'e' && | |
8310 | name[7] == 'n' && | |
8311 | name[8] == 't') | |
8312 | { /* setnetent */ | |
8313 | return -KEY_setnetent; | |
8314 | } | |
8315 | ||
8316 | goto unknown; | |
8317 | ||
8318 | case 'w': | |
8319 | if (name[1] == 'a' && | |
8320 | name[2] == 'n' && | |
8321 | name[3] == 't' && | |
8322 | name[4] == 'a' && | |
8323 | name[5] == 'r' && | |
8324 | name[6] == 'r' && | |
8325 | name[7] == 'a' && | |
8326 | name[8] == 'y') | |
8327 | { /* wantarray */ | |
8328 | return -KEY_wantarray; | |
8329 | } | |
8330 | ||
8331 | goto unknown; | |
8332 | ||
8333 | default: | |
8334 | goto unknown; | |
8335 | } | |
8336 | ||
8337 | case 10: /* 9 tokens of length 10 */ | |
8338 | switch (name[0]) | |
8339 | { | |
8340 | case 'e': | |
8341 | if (name[1] == 'n' && | |
8342 | name[2] == 'd') | |
8343 | { | |
8344 | switch (name[3]) | |
8345 | { | |
8346 | case 'h': | |
8347 | if (name[4] == 'o' && | |
8348 | name[5] == 's' && | |
8349 | name[6] == 't' && | |
8350 | name[7] == 'e' && | |
8351 | name[8] == 'n' && | |
8352 | name[9] == 't') | |
8353 | { /* endhostent */ | |
8354 | return -KEY_endhostent; | |
8355 | } | |
8356 | ||
8357 | goto unknown; | |
8358 | ||
8359 | case 's': | |
8360 | if (name[4] == 'e' && | |
8361 | name[5] == 'r' && | |
8362 | name[6] == 'v' && | |
8363 | name[7] == 'e' && | |
8364 | name[8] == 'n' && | |
8365 | name[9] == 't') | |
8366 | { /* endservent */ | |
8367 | return -KEY_endservent; | |
8368 | } | |
8369 | ||
8370 | goto unknown; | |
8371 | ||
8372 | default: | |
8373 | goto unknown; | |
8374 | } | |
8375 | } | |
8376 | ||
8377 | goto unknown; | |
8378 | ||
8379 | case 'g': | |
8380 | if (name[1] == 'e' && | |
8381 | name[2] == 't') | |
8382 | { | |
8383 | switch (name[3]) | |
8384 | { | |
8385 | case 'h': | |
8386 | if (name[4] == 'o' && | |
8387 | name[5] == 's' && | |
8388 | name[6] == 't' && | |
8389 | name[7] == 'e' && | |
8390 | name[8] == 'n' && | |
8391 | name[9] == 't') | |
8392 | { /* gethostent */ | |
8393 | return -KEY_gethostent; | |
8394 | } | |
8395 | ||
8396 | goto unknown; | |
8397 | ||
8398 | case 's': | |
8399 | switch (name[4]) | |
8400 | { | |
8401 | case 'e': | |
8402 | if (name[5] == 'r' && | |
8403 | name[6] == 'v' && | |
8404 | name[7] == 'e' && | |
8405 | name[8] == 'n' && | |
8406 | name[9] == 't') | |
8407 | { /* getservent */ | |
8408 | return -KEY_getservent; | |
8409 | } | |
8410 | ||
8411 | goto unknown; | |
8412 | ||
8413 | case 'o': | |
8414 | if (name[5] == 'c' && | |
8415 | name[6] == 'k' && | |
8416 | name[7] == 'o' && | |
8417 | name[8] == 'p' && | |
8418 | name[9] == 't') | |
8419 | { /* getsockopt */ | |
8420 | return -KEY_getsockopt; | |
8421 | } | |
8422 | ||
8423 | goto unknown; | |
8424 | ||
8425 | default: | |
8426 | goto unknown; | |
8427 | } | |
8428 | ||
8429 | default: | |
8430 | goto unknown; | |
8431 | } | |
8432 | } | |
8433 | ||
8434 | goto unknown; | |
8435 | ||
8436 | case 's': | |
8437 | switch (name[1]) | |
8438 | { | |
8439 | case 'e': | |
8440 | if (name[2] == 't') | |
8441 | { | |
8442 | switch (name[3]) | |
8443 | { | |
8444 | case 'h': | |
8445 | if (name[4] == 'o' && | |
8446 | name[5] == 's' && | |
8447 | name[6] == 't' && | |
8448 | name[7] == 'e' && | |
8449 | name[8] == 'n' && | |
8450 | name[9] == 't') | |
8451 | { /* sethostent */ | |
8452 | return -KEY_sethostent; | |
8453 | } | |
8454 | ||
8455 | goto unknown; | |
8456 | ||
8457 | case 's': | |
8458 | switch (name[4]) | |
8459 | { | |
8460 | case 'e': | |
8461 | if (name[5] == 'r' && | |
8462 | name[6] == 'v' && | |
8463 | name[7] == 'e' && | |
8464 | name[8] == 'n' && | |
8465 | name[9] == 't') | |
8466 | { /* setservent */ | |
8467 | return -KEY_setservent; | |
8468 | } | |
8469 | ||
8470 | goto unknown; | |
8471 | ||
8472 | case 'o': | |
8473 | if (name[5] == 'c' && | |
8474 | name[6] == 'k' && | |
8475 | name[7] == 'o' && | |
8476 | name[8] == 'p' && | |
8477 | name[9] == 't') | |
8478 | { /* setsockopt */ | |
8479 | return -KEY_setsockopt; | |
8480 | } | |
8481 | ||
8482 | goto unknown; | |
8483 | ||
8484 | default: | |
8485 | goto unknown; | |
8486 | } | |
8487 | ||
8488 | default: | |
8489 | goto unknown; | |
8490 | } | |
8491 | } | |
8492 | ||
8493 | goto unknown; | |
8494 | ||
8495 | case 'o': | |
8496 | if (name[2] == 'c' && | |
8497 | name[3] == 'k' && | |
8498 | name[4] == 'e' && | |
8499 | name[5] == 't' && | |
8500 | name[6] == 'p' && | |
8501 | name[7] == 'a' && | |
8502 | name[8] == 'i' && | |
8503 | name[9] == 'r') | |
8504 | { /* socketpair */ | |
8505 | return -KEY_socketpair; | |
8506 | } | |
8507 | ||
8508 | goto unknown; | |
8509 | ||
8510 | default: | |
8511 | goto unknown; | |
8512 | } | |
8513 | ||
8514 | default: | |
8515 | goto unknown; | |
8516 | } | |
8517 | ||
8518 | case 11: /* 8 tokens of length 11 */ | |
8519 | switch (name[0]) | |
8520 | { | |
8521 | case '_': | |
8522 | if (name[1] == '_' && | |
8523 | name[2] == 'P' && | |
8524 | name[3] == 'A' && | |
8525 | name[4] == 'C' && | |
8526 | name[5] == 'K' && | |
8527 | name[6] == 'A' && | |
8528 | name[7] == 'G' && | |
8529 | name[8] == 'E' && | |
8530 | name[9] == '_' && | |
8531 | name[10] == '_') | |
8532 | { /* __PACKAGE__ */ | |
8533 | return -KEY___PACKAGE__; | |
8534 | } | |
8535 | ||
8536 | goto unknown; | |
8537 | ||
8538 | case 'e': | |
8539 | if (name[1] == 'n' && | |
8540 | name[2] == 'd' && | |
8541 | name[3] == 'p' && | |
8542 | name[4] == 'r' && | |
8543 | name[5] == 'o' && | |
8544 | name[6] == 't' && | |
8545 | name[7] == 'o' && | |
8546 | name[8] == 'e' && | |
8547 | name[9] == 'n' && | |
8548 | name[10] == 't') | |
8549 | { /* endprotoent */ | |
8550 | return -KEY_endprotoent; | |
8551 | } | |
8552 | ||
8553 | goto unknown; | |
8554 | ||
8555 | case 'g': | |
8556 | if (name[1] == 'e' && | |
8557 | name[2] == 't') | |
8558 | { | |
8559 | switch (name[3]) | |
8560 | { | |
8561 | case 'p': | |
8562 | switch (name[4]) | |
8563 | { | |
8564 | case 'e': | |
8565 | if (name[5] == 'e' && | |
8566 | name[6] == 'r' && | |
8567 | name[7] == 'n' && | |
8568 | name[8] == 'a' && | |
8569 | name[9] == 'm' && | |
8570 | name[10] == 'e') | |
8571 | { /* getpeername */ | |
8572 | return -KEY_getpeername; | |
8573 | } | |
8574 | ||
8575 | goto unknown; | |
8576 | ||
8577 | case 'r': | |
8578 | switch (name[5]) | |
8579 | { | |
8580 | case 'i': | |
8581 | if (name[6] == 'o' && | |
8582 | name[7] == 'r' && | |
8583 | name[8] == 'i' && | |
8584 | name[9] == 't' && | |
8585 | name[10] == 'y') | |
8586 | { /* getpriority */ | |
8587 | return -KEY_getpriority; | |
8588 | } | |
8589 | ||
8590 | goto unknown; | |
8591 | ||
8592 | case 'o': | |
8593 | if (name[6] == 't' && | |
8594 | name[7] == 'o' && | |
8595 | name[8] == 'e' && | |
8596 | name[9] == 'n' && | |
8597 | name[10] == 't') | |
8598 | { /* getprotoent */ | |
8599 | return -KEY_getprotoent; | |
8600 | } | |
8601 | ||
8602 | goto unknown; | |
8603 | ||
8604 | default: | |
8605 | goto unknown; | |
8606 | } | |
8607 | ||
8608 | default: | |
8609 | goto unknown; | |
8610 | } | |
8611 | ||
8612 | case 's': | |
8613 | if (name[4] == 'o' && | |
8614 | name[5] == 'c' && | |
8615 | name[6] == 'k' && | |
8616 | name[7] == 'n' && | |
8617 | name[8] == 'a' && | |
8618 | name[9] == 'm' && | |
8619 | name[10] == 'e') | |
8620 | { /* getsockname */ | |
8621 | return -KEY_getsockname; | |
8622 | } | |
8623 | ||
8624 | goto unknown; | |
8625 | ||
8626 | default: | |
8627 | goto unknown; | |
8628 | } | |
8629 | } | |
8630 | ||
8631 | goto unknown; | |
8632 | ||
8633 | case 's': | |
8634 | if (name[1] == 'e' && | |
8635 | name[2] == 't' && | |
8636 | name[3] == 'p' && | |
8637 | name[4] == 'r') | |
8638 | { | |
8639 | switch (name[5]) | |
8640 | { | |
8641 | case 'i': | |
8642 | if (name[6] == 'o' && | |
8643 | name[7] == 'r' && | |
8644 | name[8] == 'i' && | |
8645 | name[9] == 't' && | |
8646 | name[10] == 'y') | |
8647 | { /* setpriority */ | |
8648 | return -KEY_setpriority; | |
8649 | } | |
8650 | ||
8651 | goto unknown; | |
8652 | ||
8653 | case 'o': | |
8654 | if (name[6] == 't' && | |
8655 | name[7] == 'o' && | |
8656 | name[8] == 'e' && | |
8657 | name[9] == 'n' && | |
8658 | name[10] == 't') | |
8659 | { /* setprotoent */ | |
8660 | return -KEY_setprotoent; | |
8661 | } | |
8662 | ||
8663 | goto unknown; | |
8664 | ||
8665 | default: | |
8666 | goto unknown; | |
8667 | } | |
8668 | } | |
8669 | ||
8670 | goto unknown; | |
8671 | ||
8672 | default: | |
8673 | goto unknown; | |
8674 | } | |
8675 | ||
8676 | case 12: /* 2 tokens of length 12 */ | |
8677 | if (name[0] == 'g' && | |
8678 | name[1] == 'e' && | |
8679 | name[2] == 't' && | |
8680 | name[3] == 'n' && | |
8681 | name[4] == 'e' && | |
8682 | name[5] == 't' && | |
8683 | name[6] == 'b' && | |
8684 | name[7] == 'y') | |
8685 | { | |
8686 | switch (name[8]) | |
8687 | { | |
8688 | case 'a': | |
8689 | if (name[9] == 'd' && | |
8690 | name[10] == 'd' && | |
8691 | name[11] == 'r') | |
8692 | { /* getnetbyaddr */ | |
8693 | return -KEY_getnetbyaddr; | |
8694 | } | |
8695 | ||
8696 | goto unknown; | |
8697 | ||
8698 | case 'n': | |
8699 | if (name[9] == 'a' && | |
8700 | name[10] == 'm' && | |
8701 | name[11] == 'e') | |
8702 | { /* getnetbyname */ | |
8703 | return -KEY_getnetbyname; | |
8704 | } | |
8705 | ||
8706 | goto unknown; | |
8707 | ||
8708 | default: | |
8709 | goto unknown; | |
8710 | } | |
8711 | } | |
8712 | ||
8713 | goto unknown; | |
8714 | ||
8715 | case 13: /* 4 tokens of length 13 */ | |
8716 | if (name[0] == 'g' && | |
8717 | name[1] == 'e' && | |
8718 | name[2] == 't') | |
8719 | { | |
8720 | switch (name[3]) | |
8721 | { | |
8722 | case 'h': | |
8723 | if (name[4] == 'o' && | |
8724 | name[5] == 's' && | |
8725 | name[6] == 't' && | |
8726 | name[7] == 'b' && | |
8727 | name[8] == 'y') | |
8728 | { | |
8729 | switch (name[9]) | |
8730 | { | |
8731 | case 'a': | |
8732 | if (name[10] == 'd' && | |
8733 | name[11] == 'd' && | |
8734 | name[12] == 'r') | |
8735 | { /* gethostbyaddr */ | |
8736 | return -KEY_gethostbyaddr; | |
8737 | } | |
8738 | ||
8739 | goto unknown; | |
8740 | ||
8741 | case 'n': | |
8742 | if (name[10] == 'a' && | |
8743 | name[11] == 'm' && | |
8744 | name[12] == 'e') | |
8745 | { /* gethostbyname */ | |
8746 | return -KEY_gethostbyname; | |
8747 | } | |
8748 | ||
8749 | goto unknown; | |
8750 | ||
8751 | default: | |
8752 | goto unknown; | |
8753 | } | |
8754 | } | |
8755 | ||
8756 | goto unknown; | |
8757 | ||
8758 | case 's': | |
8759 | if (name[4] == 'e' && | |
8760 | name[5] == 'r' && | |
8761 | name[6] == 'v' && | |
8762 | name[7] == 'b' && | |
8763 | name[8] == 'y') | |
8764 | { | |
8765 | switch (name[9]) | |
8766 | { | |
8767 | case 'n': | |
8768 | if (name[10] == 'a' && | |
8769 | name[11] == 'm' && | |
8770 | name[12] == 'e') | |
8771 | { /* getservbyname */ | |
8772 | return -KEY_getservbyname; | |
8773 | } | |
8774 | ||
8775 | goto unknown; | |
8776 | ||
8777 | case 'p': | |
8778 | if (name[10] == 'o' && | |
8779 | name[11] == 'r' && | |
8780 | name[12] == 't') | |
8781 | { /* getservbyport */ | |
8782 | return -KEY_getservbyport; | |
8783 | } | |
8784 | ||
8785 | goto unknown; | |
8786 | ||
8787 | default: | |
8788 | goto unknown; | |
8789 | } | |
8790 | } | |
8791 | ||
8792 | goto unknown; | |
8793 | ||
8794 | default: | |
8795 | goto unknown; | |
8796 | } | |
8797 | } | |
8798 | ||
8799 | goto unknown; | |
8800 | ||
8801 | case 14: /* 1 tokens of length 14 */ | |
8802 | if (name[0] == 'g' && | |
8803 | name[1] == 'e' && | |
8804 | name[2] == 't' && | |
8805 | name[3] == 'p' && | |
8806 | name[4] == 'r' && | |
8807 | name[5] == 'o' && | |
8808 | name[6] == 't' && | |
8809 | name[7] == 'o' && | |
8810 | name[8] == 'b' && | |
8811 | name[9] == 'y' && | |
8812 | name[10] == 'n' && | |
8813 | name[11] == 'a' && | |
8814 | name[12] == 'm' && | |
8815 | name[13] == 'e') | |
8816 | { /* getprotobyname */ | |
8817 | return -KEY_getprotobyname; | |
8818 | } | |
8819 | ||
8820 | goto unknown; | |
8821 | ||
8822 | case 16: /* 1 tokens of length 16 */ | |
8823 | if (name[0] == 'g' && | |
8824 | name[1] == 'e' && | |
8825 | name[2] == 't' && | |
8826 | name[3] == 'p' && | |
8827 | name[4] == 'r' && | |
8828 | name[5] == 'o' && | |
8829 | name[6] == 't' && | |
8830 | name[7] == 'o' && | |
8831 | name[8] == 'b' && | |
8832 | name[9] == 'y' && | |
8833 | name[10] == 'n' && | |
8834 | name[11] == 'u' && | |
8835 | name[12] == 'm' && | |
8836 | name[13] == 'b' && | |
8837 | name[14] == 'e' && | |
8838 | name[15] == 'r') | |
8839 | { /* getprotobynumber */ | |
8840 | return -KEY_getprotobynumber; | |
8841 | } | |
8842 | ||
8843 | goto unknown; | |
8844 | ||
8845 | default: | |
8846 | goto unknown; | |
8847 | } | |
8848 | ||
8849 | unknown: | |
8850 | return 0; | |
a687059c LW |
8851 | } |
8852 | ||
76e3520e | 8853 | STATIC void |
24c2fff4 | 8854 | S_checkcomma(pTHX_ register char *s, const char *name, const char *what) |
a687059c | 8855 | { |
24c2fff4 | 8856 | const char *w; |
2f3197b3 | 8857 | |
d008e5eb | 8858 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
8859 | if (ckWARN(WARN_SYNTAX)) { |
8860 | int level = 1; | |
8861 | for (w = s+2; *w && level; w++) { | |
8862 | if (*w == '(') | |
8863 | ++level; | |
8864 | else if (*w == ')') | |
8865 | --level; | |
8866 | } | |
8867 | if (*w) | |
8868 | for (; *w && isSPACE(*w); w++) ; | |
8869 | if (!*w || !strchr(";|})]oaiuw!=", *w)) /* an advisory hack only... */ | |
9014280d | 8870 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 8871 | "%s (...) interpreted as function",name); |
d008e5eb | 8872 | } |
2f3197b3 | 8873 | } |
3280af22 | 8874 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 8875 | s++; |
a687059c LW |
8876 | if (*s == '(') |
8877 | s++; | |
3280af22 | 8878 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 8879 | s++; |
7e2040f0 | 8880 | if (isIDFIRST_lazy_if(s,UTF)) { |
2f3197b3 | 8881 | w = s++; |
7e2040f0 | 8882 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 8883 | s++; |
3280af22 | 8884 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 8885 | s++; |
e929a76b | 8886 | if (*s == ',') { |
463ee0b2 | 8887 | int kw; |
24c2fff4 | 8888 | *s = '\0'; /* XXX If we didn't do this, we could const a lot of toke.c */ |
864dbfa3 | 8889 | kw = keyword(w, s - w) || get_cv(w, FALSE) != 0; |
e929a76b | 8890 | *s = ','; |
463ee0b2 | 8891 | if (kw) |
e929a76b | 8892 | return; |
cea2e8a9 | 8893 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
8894 | } |
8895 | } | |
8896 | } | |
8897 | ||
423cee85 JH |
8898 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
8899 | Best used as sv=new_constant(..., sv, ...). | |
8900 | If s, pv are NULL, calls subroutine with one argument, | |
8901 | and type is used with error messages only. */ | |
8902 | ||
b3ac6de7 | 8903 | STATIC SV * |
1f49be52 | 8904 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, SV *sv, SV *pv, |
9b0e499b | 8905 | const char *type) |
b3ac6de7 | 8906 | { |
b3ac6de7 | 8907 | dSP; |
3280af22 | 8908 | HV *table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 8909 | SV *res; |
b3ac6de7 IZ |
8910 | SV **cvp; |
8911 | SV *cv, *typesv; | |
f0af216f | 8912 | const char *why1, *why2, *why3; |
4e553d73 | 8913 | |
f0af216f | 8914 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
8915 | SV *msg; |
8916 | ||
f0af216f | 8917 | why2 = strEQ(key,"charnames") |
41ab332f | 8918 | ? "(possibly a missing \"use charnames ...\")" |
f0af216f | 8919 | : ""; |
4e553d73 | 8920 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
8921 | (type ? type: "undef"), why2); |
8922 | ||
8923 | /* This is convoluted and evil ("goto considered harmful") | |
8924 | * but I do not understand the intricacies of all the different | |
8925 | * failure modes of %^H in here. The goal here is to make | |
8926 | * the most probable error message user-friendly. --jhi */ | |
8927 | ||
8928 | goto msgdone; | |
8929 | ||
423cee85 | 8930 | report: |
4e553d73 | 8931 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 8932 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 8933 | msgdone: |
5e7e76a3 | 8934 | yyerror(SvPVX_const(msg)); |
423cee85 JH |
8935 | SvREFCNT_dec(msg); |
8936 | return sv; | |
8937 | } | |
b3ac6de7 IZ |
8938 | cvp = hv_fetch(table, key, strlen(key), FALSE); |
8939 | if (!cvp || !SvOK(*cvp)) { | |
423cee85 JH |
8940 | why1 = "$^H{"; |
8941 | why2 = key; | |
f0af216f | 8942 | why3 = "} is not defined"; |
423cee85 | 8943 | goto report; |
b3ac6de7 IZ |
8944 | } |
8945 | sv_2mortal(sv); /* Parent created it permanently */ | |
8946 | cv = *cvp; | |
423cee85 JH |
8947 | if (!pv && s) |
8948 | pv = sv_2mortal(newSVpvn(s, len)); | |
8949 | if (type && pv) | |
8950 | typesv = sv_2mortal(newSVpv(type, 0)); | |
b3ac6de7 | 8951 | else |
423cee85 | 8952 | typesv = &PL_sv_undef; |
4e553d73 | 8953 | |
e788e7d3 | 8954 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
8955 | ENTER ; |
8956 | SAVETMPS; | |
4e553d73 | 8957 | |
423cee85 | 8958 | PUSHMARK(SP) ; |
a5845cb7 | 8959 | EXTEND(sp, 3); |
423cee85 JH |
8960 | if (pv) |
8961 | PUSHs(pv); | |
b3ac6de7 | 8962 | PUSHs(sv); |
423cee85 JH |
8963 | if (pv) |
8964 | PUSHs(typesv); | |
b3ac6de7 | 8965 | PUTBACK; |
423cee85 | 8966 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 8967 | |
423cee85 | 8968 | SPAGAIN ; |
4e553d73 | 8969 | |
423cee85 | 8970 | /* Check the eval first */ |
9b0e499b | 8971 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
423cee85 JH |
8972 | STRLEN n_a; |
8973 | sv_catpv(ERRSV, "Propagated"); | |
8974 | yyerror(SvPV(ERRSV, n_a)); /* Duplicates the message inside eval */ | |
e1f15930 | 8975 | (void)POPs; |
423cee85 JH |
8976 | res = SvREFCNT_inc(sv); |
8977 | } | |
8978 | else { | |
8979 | res = POPs; | |
e1f15930 | 8980 | (void)SvREFCNT_inc(res); |
423cee85 | 8981 | } |
4e553d73 | 8982 | |
423cee85 JH |
8983 | PUTBACK ; |
8984 | FREETMPS ; | |
8985 | LEAVE ; | |
b3ac6de7 | 8986 | POPSTACK; |
4e553d73 | 8987 | |
b3ac6de7 | 8988 | if (!SvOK(res)) { |
423cee85 JH |
8989 | why1 = "Call to &{$^H{"; |
8990 | why2 = key; | |
f0af216f | 8991 | why3 = "}} did not return a defined value"; |
423cee85 JH |
8992 | sv = res; |
8993 | goto report; | |
9b0e499b | 8994 | } |
423cee85 | 8995 | |
9b0e499b | 8996 | return res; |
b3ac6de7 | 8997 | } |
4e553d73 | 8998 | |
76e3520e | 8999 | STATIC char * |
cea2e8a9 | 9000 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 LW |
9001 | { |
9002 | register char *d = dest; | |
8903cb82 | 9003 | register char *e = d + destlen - 3; /* two-character token, ending NUL */ |
463ee0b2 | 9004 | for (;;) { |
8903cb82 | 9005 | if (d >= e) |
cea2e8a9 | 9006 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 9007 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 9008 | *d++ = *s++; |
7e2040f0 | 9009 | else if (*s == '\'' && allow_package && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
9010 | *d++ = ':'; |
9011 | *d++ = ':'; | |
9012 | s++; | |
9013 | } | |
c3e0f903 | 9014 | else if (*s == ':' && s[1] == ':' && allow_package && s[2] != '$') { |
463ee0b2 LW |
9015 | *d++ = *s++; |
9016 | *d++ = *s++; | |
9017 | } | |
fd400ab9 | 9018 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 9019 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 9020 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
9021 | t += UTF8SKIP(t); |
9022 | if (d + (t - s) > e) | |
cea2e8a9 | 9023 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
9024 | Copy(s, d, t - s, char); |
9025 | d += t - s; | |
9026 | s = t; | |
9027 | } | |
463ee0b2 LW |
9028 | else { |
9029 | *d = '\0'; | |
9030 | *slp = d - dest; | |
9031 | return s; | |
e929a76b | 9032 | } |
378cc40b LW |
9033 | } |
9034 | } | |
9035 | ||
76e3520e | 9036 | STATIC char * |
24c2fff4 | 9037 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b LW |
9038 | { |
9039 | register char *d; | |
8903cb82 | 9040 | register char *e; |
79072805 | 9041 | char *bracket = 0; |
748a9306 | 9042 | char funny = *s++; |
378cc40b | 9043 | |
a0d0e21e LW |
9044 | if (isSPACE(*s)) |
9045 | s = skipspace(s); | |
378cc40b | 9046 | d = dest; |
8903cb82 | 9047 | e = d + destlen - 3; /* two-character token, ending NUL */ |
de3bb511 | 9048 | if (isDIGIT(*s)) { |
8903cb82 | 9049 | while (isDIGIT(*s)) { |
9050 | if (d >= e) | |
cea2e8a9 | 9051 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 9052 | *d++ = *s++; |
8903cb82 | 9053 | } |
378cc40b LW |
9054 | } |
9055 | else { | |
463ee0b2 | 9056 | for (;;) { |
8903cb82 | 9057 | if (d >= e) |
cea2e8a9 | 9058 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 9059 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 9060 | *d++ = *s++; |
7e2040f0 | 9061 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
9062 | *d++ = ':'; |
9063 | *d++ = ':'; | |
9064 | s++; | |
9065 | } | |
a0d0e21e | 9066 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
9067 | *d++ = *s++; |
9068 | *d++ = *s++; | |
9069 | } | |
fd400ab9 | 9070 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 9071 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 9072 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
9073 | t += UTF8SKIP(t); |
9074 | if (d + (t - s) > e) | |
cea2e8a9 | 9075 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
9076 | Copy(s, d, t - s, char); |
9077 | d += t - s; | |
9078 | s = t; | |
9079 | } | |
463ee0b2 LW |
9080 | else |
9081 | break; | |
9082 | } | |
378cc40b LW |
9083 | } |
9084 | *d = '\0'; | |
9085 | d = dest; | |
79072805 | 9086 | if (*d) { |
3280af22 NIS |
9087 | if (PL_lex_state != LEX_NORMAL) |
9088 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 9089 | return s; |
378cc40b | 9090 | } |
748a9306 | 9091 | if (*s == '$' && s[1] && |
3c71ae1e | 9092 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 9093 | { |
4810e5ec | 9094 | return s; |
5cd24f17 | 9095 | } |
79072805 LW |
9096 | if (*s == '{') { |
9097 | bracket = s; | |
9098 | s++; | |
9099 | } | |
9100 | else if (ck_uni) | |
9101 | check_uni(); | |
93a17b20 | 9102 | if (s < send) |
79072805 LW |
9103 | *d = *s++; |
9104 | d[1] = '\0'; | |
2b92dfce | 9105 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 9106 | *d = toCTRL(*s); |
9107 | s++; | |
de3bb511 | 9108 | } |
79072805 | 9109 | if (bracket) { |
748a9306 | 9110 | if (isSPACE(s[-1])) { |
fa83b5b6 | 9111 | while (s < send) { |
24c2fff4 | 9112 | const char ch = *s++; |
bf4acbe4 | 9113 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 9114 | *d = ch; |
9115 | break; | |
9116 | } | |
9117 | } | |
748a9306 | 9118 | } |
7e2040f0 | 9119 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 9120 | d++; |
a0ed51b3 LW |
9121 | if (UTF) { |
9122 | e = s; | |
155aba94 | 9123 | while ((e < send && isALNUM_lazy_if(e,UTF)) || *e == ':') { |
a0ed51b3 | 9124 | e += UTF8SKIP(e); |
fd400ab9 | 9125 | while (e < send && UTF8_IS_CONTINUED(*e) && is_utf8_mark((U8*)e)) |
a0ed51b3 LW |
9126 | e += UTF8SKIP(e); |
9127 | } | |
9128 | Copy(s, d, e - s, char); | |
9129 | d += e - s; | |
9130 | s = e; | |
9131 | } | |
9132 | else { | |
2b92dfce | 9133 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 9134 | *d++ = *s++; |
2b92dfce | 9135 | if (d >= e) |
cea2e8a9 | 9136 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 9137 | } |
79072805 | 9138 | *d = '\0'; |
bf4acbe4 | 9139 | while (s < send && SPACE_OR_TAB(*s)) s++; |
ff68c719 | 9140 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
599cee73 | 9141 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest)) { |
dff6d3cd | 9142 | const char *brack = *s == '[' ? "[...]" : "{...}"; |
9014280d | 9143 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 9144 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
9145 | funny, dest, brack, funny, dest, brack); |
9146 | } | |
79072805 | 9147 | bracket++; |
a0be28da | 9148 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
9149 | return s; |
9150 | } | |
4e553d73 NIS |
9151 | } |
9152 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
9153 | * 1999-02-27 mjd-perl-patch@plover.com */ |
9154 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
9155 | && isALNUM(*s)) | |
9156 | { | |
9157 | d++; | |
9158 | while (isALNUM(*s) && d < e) { | |
9159 | *d++ = *s++; | |
9160 | } | |
9161 | if (d >= e) | |
cea2e8a9 | 9162 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 9163 | *d = '\0'; |
79072805 LW |
9164 | } |
9165 | if (*s == '}') { | |
9166 | s++; | |
5835a535 | 9167 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 9168 | PL_lex_state = LEX_INTERPEND; |
5835a535 JH |
9169 | PL_expect = XREF; |
9170 | } | |
748a9306 LW |
9171 | if (funny == '#') |
9172 | funny = '@'; | |
d008e5eb | 9173 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 9174 | if (ckWARN(WARN_AMBIGUOUS) && |
864dbfa3 | 9175 | (keyword(dest, d - dest) || get_cv(dest, FALSE))) |
d008e5eb | 9176 | { |
9014280d | 9177 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
9178 | "Ambiguous use of %c{%s} resolved to %c%s", |
9179 | funny, dest, funny, dest); | |
9180 | } | |
9181 | } | |
79072805 LW |
9182 | } |
9183 | else { | |
9184 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 9185 | *dest = '\0'; |
79072805 LW |
9186 | } |
9187 | } | |
3280af22 NIS |
9188 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
9189 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
9190 | return s; |
9191 | } | |
9192 | ||
cea2e8a9 | 9193 | void |
2b36a5a0 | 9194 | Perl_pmflag(pTHX_ U32* pmfl, int ch) |
a0d0e21e | 9195 | { |
bbce6d69 | 9196 | if (ch == 'i') |
a0d0e21e | 9197 | *pmfl |= PMf_FOLD; |
a0d0e21e LW |
9198 | else if (ch == 'g') |
9199 | *pmfl |= PMf_GLOBAL; | |
c90c0ff4 | 9200 | else if (ch == 'c') |
9201 | *pmfl |= PMf_CONTINUE; | |
a0d0e21e LW |
9202 | else if (ch == 'o') |
9203 | *pmfl |= PMf_KEEP; | |
9204 | else if (ch == 'm') | |
9205 | *pmfl |= PMf_MULTILINE; | |
9206 | else if (ch == 's') | |
9207 | *pmfl |= PMf_SINGLELINE; | |
9208 | else if (ch == 'x') | |
9209 | *pmfl |= PMf_EXTENDED; | |
9210 | } | |
378cc40b | 9211 | |
76e3520e | 9212 | STATIC char * |
cea2e8a9 | 9213 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 9214 | { |
79072805 | 9215 | PMOP *pm; |
24c2fff4 | 9216 | char *s = scan_str(start,FALSE,FALSE); |
378cc40b | 9217 | |
37fd879b | 9218 | if (!s) |
cea2e8a9 | 9219 | Perl_croak(aTHX_ "Search pattern not terminated"); |
bbce6d69 | 9220 | |
8782bef2 | 9221 | pm = (PMOP*)newPMOP(type, 0); |
3280af22 | 9222 | if (PL_multi_open == '?') |
79072805 | 9223 | pm->op_pmflags |= PMf_ONCE; |
8782bef2 GB |
9224 | if(type == OP_QR) { |
9225 | while (*s && strchr("iomsx", *s)) | |
9226 | pmflag(&pm->op_pmflags,*s++); | |
9227 | } | |
9228 | else { | |
9229 | while (*s && strchr("iogcmsx", *s)) | |
9230 | pmflag(&pm->op_pmflags,*s++); | |
9231 | } | |
4ac733c9 | 9232 | /* issue a warning if /c is specified,but /g is not */ |
a00f3e00 | 9233 | if (ckWARN(WARN_REGEXP) && |
4ac733c9 MJD |
9234 | (pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL)) |
9235 | { | |
9236 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), c_without_g); | |
9237 | } | |
9238 | ||
4633a7c4 | 9239 | pm->op_pmpermflags = pm->op_pmflags; |
bbce6d69 | 9240 | |
3280af22 | 9241 | PL_lex_op = (OP*)pm; |
79072805 | 9242 | yylval.ival = OP_MATCH; |
378cc40b LW |
9243 | return s; |
9244 | } | |
9245 | ||
76e3520e | 9246 | STATIC char * |
cea2e8a9 | 9247 | S_scan_subst(pTHX_ char *start) |
79072805 | 9248 | { |
a0d0e21e | 9249 | register char *s; |
79072805 | 9250 | register PMOP *pm; |
4fdae800 | 9251 | I32 first_start; |
79072805 LW |
9252 | I32 es = 0; |
9253 | ||
79072805 LW |
9254 | yylval.ival = OP_NULL; |
9255 | ||
09bef843 | 9256 | s = scan_str(start,FALSE,FALSE); |
79072805 | 9257 | |
37fd879b | 9258 | if (!s) |
cea2e8a9 | 9259 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 9260 | |
3280af22 | 9261 | if (s[-1] == PL_multi_open) |
79072805 LW |
9262 | s--; |
9263 | ||
3280af22 | 9264 | first_start = PL_multi_start; |
09bef843 | 9265 | s = scan_str(s,FALSE,FALSE); |
79072805 | 9266 | if (!s) { |
37fd879b | 9267 | if (PL_lex_stuff) { |
3280af22 | 9268 | SvREFCNT_dec(PL_lex_stuff); |
37fd879b HS |
9269 | PL_lex_stuff = Nullsv; |
9270 | } | |
cea2e8a9 | 9271 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 9272 | } |
3280af22 | 9273 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 9274 | |
79072805 | 9275 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
48c036b1 | 9276 | while (*s) { |
a687059c LW |
9277 | if (*s == 'e') { |
9278 | s++; | |
2f3197b3 | 9279 | es++; |
a687059c | 9280 | } |
b3eb6a9b | 9281 | else if (strchr("iogcmsx", *s)) |
a0d0e21e | 9282 | pmflag(&pm->op_pmflags,*s++); |
48c036b1 GS |
9283 | else |
9284 | break; | |
378cc40b | 9285 | } |
79072805 | 9286 | |
64e578a2 MJD |
9287 | /* /c is not meaningful with s/// */ |
9288 | if (ckWARN(WARN_REGEXP) && (pm->op_pmflags & PMf_CONTINUE)) | |
4ac733c9 | 9289 | { |
64e578a2 | 9290 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), c_in_subst); |
4ac733c9 MJD |
9291 | } |
9292 | ||
79072805 LW |
9293 | if (es) { |
9294 | SV *repl; | |
0244c3a4 GS |
9295 | PL_sublex_info.super_bufptr = s; |
9296 | PL_sublex_info.super_bufend = PL_bufend; | |
9297 | PL_multi_end = 0; | |
79072805 | 9298 | pm->op_pmflags |= PMf_EVAL; |
79cb57f6 | 9299 | repl = newSVpvn("",0); |
463ee0b2 | 9300 | while (es-- > 0) |
a0d0e21e | 9301 | sv_catpv(repl, es ? "eval " : "do "); |
79072805 | 9302 | sv_catpvn(repl, "{ ", 2); |
3280af22 | 9303 | sv_catsv(repl, PL_lex_repl); |
79072805 | 9304 | sv_catpvn(repl, " };", 2); |
25da4f38 | 9305 | SvEVALED_on(repl); |
3280af22 NIS |
9306 | SvREFCNT_dec(PL_lex_repl); |
9307 | PL_lex_repl = repl; | |
378cc40b | 9308 | } |
79072805 | 9309 | |
4633a7c4 | 9310 | pm->op_pmpermflags = pm->op_pmflags; |
3280af22 | 9311 | PL_lex_op = (OP*)pm; |
79072805 | 9312 | yylval.ival = OP_SUBST; |
378cc40b LW |
9313 | return s; |
9314 | } | |
9315 | ||
76e3520e | 9316 | STATIC char * |
cea2e8a9 | 9317 | S_scan_trans(pTHX_ char *start) |
378cc40b | 9318 | { |
a0d0e21e | 9319 | register char* s; |
11343788 | 9320 | OP *o; |
79072805 LW |
9321 | short *tbl; |
9322 | I32 squash; | |
a0ed51b3 | 9323 | I32 del; |
79072805 LW |
9324 | I32 complement; |
9325 | ||
9326 | yylval.ival = OP_NULL; | |
9327 | ||
09bef843 | 9328 | s = scan_str(start,FALSE,FALSE); |
37fd879b | 9329 | if (!s) |
cea2e8a9 | 9330 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
3280af22 | 9331 | if (s[-1] == PL_multi_open) |
2f3197b3 LW |
9332 | s--; |
9333 | ||
09bef843 | 9334 | s = scan_str(s,FALSE,FALSE); |
79072805 | 9335 | if (!s) { |
37fd879b | 9336 | if (PL_lex_stuff) { |
3280af22 | 9337 | SvREFCNT_dec(PL_lex_stuff); |
37fd879b HS |
9338 | PL_lex_stuff = Nullsv; |
9339 | } | |
cea2e8a9 | 9340 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 9341 | } |
79072805 | 9342 | |
a0ed51b3 | 9343 | complement = del = squash = 0; |
3c71ae1e NC |
9344 | while (1) { |
9345 | switch (*s) { | |
9346 | case 'c': | |
79072805 | 9347 | complement = OPpTRANS_COMPLEMENT; |
3c71ae1e NC |
9348 | break; |
9349 | case 'd': | |
a0ed51b3 | 9350 | del = OPpTRANS_DELETE; |
3c71ae1e NC |
9351 | break; |
9352 | case 's': | |
79072805 | 9353 | squash = OPpTRANS_SQUASH; |
3c71ae1e NC |
9354 | break; |
9355 | default: | |
9356 | goto no_more; | |
9357 | } | |
395c3793 LW |
9358 | s++; |
9359 | } | |
3c71ae1e | 9360 | no_more: |
8973db79 JH |
9361 | |
9362 | New(803, tbl, complement&&!del?258:256, short); | |
9363 | o = newPVOP(OP_TRANS, 0, (char*)tbl); | |
7948272d NIS |
9364 | o->op_private = del|squash|complement| |
9365 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| | |
9366 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 9367 | |
3280af22 | 9368 | PL_lex_op = o; |
79072805 LW |
9369 | yylval.ival = OP_TRANS; |
9370 | return s; | |
9371 | } | |
9372 | ||
76e3520e | 9373 | STATIC char * |
cea2e8a9 | 9374 | S_scan_heredoc(pTHX_ register char *s) |
79072805 LW |
9375 | { |
9376 | SV *herewas; | |
9377 | I32 op_type = OP_SCALAR; | |
9378 | I32 len; | |
9379 | SV *tmpstr; | |
9380 | char term; | |
e2b56717 AL |
9381 | const char newline[] = "\n"; |
9382 | const char *found_newline; | |
79072805 | 9383 | register char *d; |
fc36a67e | 9384 | register char *e; |
4633a7c4 | 9385 | char *peek; |
24c2fff4 | 9386 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
79072805 LW |
9387 | |
9388 | s += 2; | |
3280af22 NIS |
9389 | d = PL_tokenbuf; |
9390 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 9391 | if (!outer) |
79072805 | 9392 | *d++ = '\n'; |
bf4acbe4 | 9393 | for (peek = s; SPACE_OR_TAB(*peek); peek++) ; |
3c71ae1e | 9394 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 9395 | s = peek; |
79072805 | 9396 | term = *s++; |
3280af22 | 9397 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 9398 | d += len; |
3280af22 | 9399 | if (s < PL_bufend) |
79072805 | 9400 | s++; |
79072805 LW |
9401 | } |
9402 | else { | |
9403 | if (*s == '\\') | |
9404 | s++, term = '\''; | |
9405 | else | |
9406 | term = '"'; | |
7e2040f0 | 9407 | if (!isALNUM_lazy_if(s,UTF)) |
12bcd1a6 | 9408 | deprecate_old("bare << to mean <<\"\""); |
7e2040f0 | 9409 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 9410 | if (d < e) |
9411 | *d++ = *s; | |
9412 | } | |
9413 | } | |
3280af22 | 9414 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 9415 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
9416 | *d++ = '\n'; |
9417 | *d = '\0'; | |
3280af22 | 9418 | len = d - PL_tokenbuf; |
6a27c188 | 9419 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
9420 | d = strchr(s, '\r'); |
9421 | if (d) { | |
9422 | char *olds = s; | |
9423 | s = d; | |
3280af22 | 9424 | while (s < PL_bufend) { |
f63a84b2 LW |
9425 | if (*s == '\r') { |
9426 | *d++ = '\n'; | |
9427 | if (*++s == '\n') | |
9428 | s++; | |
9429 | } | |
9430 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
9431 | *d++ = *s++; | |
9432 | s++; | |
9433 | } | |
9434 | else | |
9435 | *d++ = *s++; | |
9436 | } | |
9437 | *d = '\0'; | |
3280af22 | 9438 | PL_bufend = d; |
5e7e76a3 | 9439 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
9440 | s = olds; |
9441 | } | |
9442 | #endif | |
e2b56717 AL |
9443 | if ( outer || !(found_newline = ninstr(s,PL_bufend,newline,newline+1)) ) { |
9444 | herewas = newSVpvn(s,PL_bufend-s); | |
9445 | } | |
9446 | else { | |
9447 | s--; | |
9448 | herewas = newSVpvn(s,found_newline-s); | |
9449 | } | |
79072805 | 9450 | s += SvCUR(herewas); |
748a9306 | 9451 | |
8d6dde3e | 9452 | tmpstr = NEWSV(87,79); |
748a9306 LW |
9453 | sv_upgrade(tmpstr, SVt_PVIV); |
9454 | if (term == '\'') { | |
79072805 | 9455 | op_type = OP_CONST; |
0da6cfda | 9456 | SvIV_set(tmpstr, -1); |
748a9306 LW |
9457 | } |
9458 | else if (term == '`') { | |
79072805 | 9459 | op_type = OP_BACKTICK; |
0da6cfda | 9460 | SvIV_set(tmpstr, '\\'); |
748a9306 | 9461 | } |
79072805 LW |
9462 | |
9463 | CLINE; | |
57843af0 | 9464 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
9465 | PL_multi_open = PL_multi_close = '<'; |
9466 | term = *PL_tokenbuf; | |
0244c3a4 GS |
9467 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
9468 | char *bufptr = PL_sublex_info.super_bufptr; | |
9469 | char *bufend = PL_sublex_info.super_bufend; | |
9470 | char *olds = s - SvCUR(herewas); | |
9471 | s = strchr(bufptr, '\n'); | |
9472 | if (!s) | |
9473 | s = bufend; | |
9474 | d = s; | |
9475 | while (s < bufend && | |
9476 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
9477 | if (*s++ == '\n') | |
57843af0 | 9478 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
9479 | } |
9480 | if (s >= bufend) { | |
eb160463 | 9481 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
9482 | missingterm(PL_tokenbuf); |
9483 | } | |
9484 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
9485 | sv_setpvn(tmpstr,d+1,s-d); | |
9486 | s += len - 1; | |
9487 | sv_catpvn(herewas,s,bufend-s); | |
5e7e76a3 | 9488 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
9489 | |
9490 | s = olds; | |
9491 | goto retval; | |
9492 | } | |
9493 | else if (!outer) { | |
79072805 | 9494 | d = s; |
3280af22 NIS |
9495 | while (s < PL_bufend && |
9496 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 9497 | if (*s++ == '\n') |
57843af0 | 9498 | CopLINE_inc(PL_curcop); |
79072805 | 9499 | } |
3280af22 | 9500 | if (s >= PL_bufend) { |
eb160463 | 9501 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 9502 | missingterm(PL_tokenbuf); |
79072805 LW |
9503 | } |
9504 | sv_setpvn(tmpstr,d+1,s-d); | |
9505 | s += len - 1; | |
57843af0 | 9506 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 9507 | |
3280af22 NIS |
9508 | sv_catpvn(herewas,s,PL_bufend-s); |
9509 | sv_setsv(PL_linestr,herewas); | |
9510 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
9511 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 9512 | PL_last_lop = PL_last_uni = Nullch; |
79072805 LW |
9513 | } |
9514 | else | |
9515 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
3280af22 | 9516 | while (s >= PL_bufend) { /* multiple line string? */ |
fd2d0953 | 9517 | if (!outer || |
3280af22 | 9518 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { |
eb160463 | 9519 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 9520 | missingterm(PL_tokenbuf); |
79072805 | 9521 | } |
57843af0 | 9522 | CopLINE_inc(PL_curcop); |
3280af22 | 9523 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
207e3d1a | 9524 | PL_last_lop = PL_last_uni = Nullch; |
6a27c188 | 9525 | #ifndef PERL_STRICT_CR |
3280af22 | 9526 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
9527 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
9528 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 9529 | { |
3280af22 NIS |
9530 | PL_bufend[-2] = '\n'; |
9531 | PL_bufend--; | |
5e7e76a3 | 9532 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 9533 | } |
3280af22 NIS |
9534 | else if (PL_bufend[-1] == '\r') |
9535 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 9536 | } |
3280af22 NIS |
9537 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
9538 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 9539 | #endif |
3280af22 | 9540 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
79072805 LW |
9541 | SV *sv = NEWSV(88,0); |
9542 | ||
93a17b20 | 9543 | sv_upgrade(sv, SVt_PVMG); |
3280af22 | 9544 | sv_setsv(sv,PL_linestr); |
0ac0412a | 9545 | (void)SvIOK_on(sv); |
0da6cfda | 9546 | SvIV_set(sv, 0); |
57843af0 | 9547 | av_store(CopFILEAV(PL_curcop), (I32)CopLINE(PL_curcop),sv); |
79072805 | 9548 | } |
3280af22 | 9549 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
5e7e76a3 | 9550 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
6dc97886 | 9551 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
9552 | sv_catsv(PL_linestr,herewas); |
9553 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
6dc97886 | 9554 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
9555 | } |
9556 | else { | |
3280af22 NIS |
9557 | s = PL_bufend; |
9558 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
9559 | } |
9560 | } | |
79072805 | 9561 | s++; |
0244c3a4 | 9562 | retval: |
57843af0 | 9563 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 9564 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
ea5389ca | 9565 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 9566 | } |
8990e307 | 9567 | SvREFCNT_dec(herewas); |
c0401c5d | 9568 | if (!IN_BYTES) { |
5e7e76a3 | 9569 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
c0401c5d JH |
9570 | SvUTF8_on(tmpstr); |
9571 | else if (PL_encoding) | |
9572 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
9573 | } | |
3280af22 | 9574 | PL_lex_stuff = tmpstr; |
79072805 LW |
9575 | yylval.ival = op_type; |
9576 | return s; | |
9577 | } | |
9578 | ||
02aa26ce NT |
9579 | /* scan_inputsymbol |
9580 | takes: current position in input buffer | |
9581 | returns: new position in input buffer | |
9582 | side-effects: yylval and lex_op are set. | |
9583 | ||
9584 | This code handles: | |
9585 | ||
9586 | <> read from ARGV | |
9587 | <FH> read from filehandle | |
9588 | <pkg::FH> read from package qualified filehandle | |
9589 | <pkg'FH> read from package qualified filehandle | |
9590 | <$fh> read from filehandle in $fh | |
9591 | <*.h> filename glob | |
9592 | ||
9593 | */ | |
9594 | ||
76e3520e | 9595 | STATIC char * |
cea2e8a9 | 9596 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 9597 | { |
02aa26ce | 9598 | register char *s = start; /* current position in buffer */ |
79072805 | 9599 | register char *d; |
fc36a67e | 9600 | register char *e; |
1b420867 | 9601 | char *end; |
79072805 LW |
9602 | I32 len; |
9603 | ||
3280af22 NIS |
9604 | d = PL_tokenbuf; /* start of temp holding space */ |
9605 | e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
1b420867 GS |
9606 | end = strchr(s, '\n'); |
9607 | if (!end) | |
9608 | end = PL_bufend; | |
9609 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
9610 | |
9611 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 9612 | or if it didn't end, or if we see a newline |
02aa26ce NT |
9613 | */ |
9614 | ||
3280af22 | 9615 | if (len >= sizeof PL_tokenbuf) |
cea2e8a9 | 9616 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 9617 | if (s >= end) |
cea2e8a9 | 9618 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 9619 | |
fc36a67e | 9620 | s++; |
02aa26ce NT |
9621 | |
9622 | /* check for <$fh> | |
9623 | Remember, only scalar variables are interpreted as filehandles by | |
9624 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
9625 | treated as a glob() call. | |
9626 | This code makes use of the fact that except for the $ at the front, | |
9627 | a scalar variable and a filehandle look the same. | |
9628 | */ | |
4633a7c4 | 9629 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
9630 | |
9631 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 9632 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 9633 | d++; |
02aa26ce NT |
9634 | |
9635 | /* If we've tried to read what we allow filehandles to look like, and | |
9636 | there's still text left, then it must be a glob() and not a getline. | |
9637 | Use scan_str to pull out the stuff between the <> and treat it | |
9638 | as nothing more than a string. | |
9639 | */ | |
9640 | ||
3280af22 | 9641 | if (d - PL_tokenbuf != len) { |
79072805 LW |
9642 | yylval.ival = OP_GLOB; |
9643 | set_csh(); | |
09bef843 | 9644 | s = scan_str(start,FALSE,FALSE); |
79072805 | 9645 | if (!s) |
cea2e8a9 | 9646 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
9647 | return s; |
9648 | } | |
395c3793 | 9649 | else { |
9b3023bc RGS |
9650 | bool readline_overriden = FALSE; |
9651 | GV *gv_readline = Nullgv; | |
9652 | GV **gvp; | |
02aa26ce | 9653 | /* we're in a filehandle read situation */ |
3280af22 | 9654 | d = PL_tokenbuf; |
02aa26ce NT |
9655 | |
9656 | /* turn <> into <ARGV> */ | |
79072805 | 9657 | if (!len) |
735fe74b | 9658 | Copy("ARGV",d,5,char); |
02aa26ce | 9659 | |
9b3023bc | 9660 | /* Check whether readline() is overriden */ |
ba979b31 NIS |
9661 | if (((gv_readline = gv_fetchpv("readline", FALSE, SVt_PVCV)) |
9662 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) | |
9b3023bc | 9663 | || |
ba979b31 | 9664 | ((gvp = (GV**)hv_fetch(PL_globalstash, "readline", 8, FALSE)) |
9b3023bc | 9665 | && (gv_readline = *gvp) != (GV*)&PL_sv_undef |
ba979b31 | 9666 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
9667 | readline_overriden = TRUE; |
9668 | ||
02aa26ce NT |
9669 | /* if <$fh>, create the ops to turn the variable into a |
9670 | filehandle | |
9671 | */ | |
79072805 | 9672 | if (*d == '$') { |
a0d0e21e | 9673 | I32 tmp; |
02aa26ce NT |
9674 | |
9675 | /* try to find it in the pad for this block, otherwise find | |
9676 | add symbol table ops | |
9677 | */ | |
11343788 | 9678 | if ((tmp = pad_findmy(d)) != NOT_IN_PAD) { |
9755d405 JH |
9679 | if (PAD_COMPNAME_FLAGS(tmp) & SVpad_OUR) { |
9680 | SV *sym = sv_2mortal( | |
26ab6a78 | 9681 | newSVpv(HvNAME_get(PAD_COMPNAME_OURSTASH(tmp)),0)); |
f558d5af JH |
9682 | sv_catpvn(sym, "::", 2); |
9683 | sv_catpv(sym, d+1); | |
9684 | d = SvPVX(sym); | |
9685 | goto intro_sym; | |
9686 | } | |
9687 | else { | |
9688 | OP *o = newOP(OP_PADSV, 0); | |
9689 | o->op_targ = tmp; | |
9b3023bc RGS |
9690 | PL_lex_op = readline_overriden |
9691 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
9692 | append_elem(OP_LIST, o, | |
9693 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
9694 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 9695 | } |
a0d0e21e LW |
9696 | } |
9697 | else { | |
f558d5af JH |
9698 | GV *gv; |
9699 | ++d; | |
9700 | intro_sym: | |
9701 | gv = gv_fetchpv(d, | |
9702 | (PL_in_eval | |
9703 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 9704 | : GV_ADDMULTI), |
f558d5af | 9705 | SVt_PV); |
9b3023bc RGS |
9706 | PL_lex_op = readline_overriden |
9707 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
9708 | append_elem(OP_LIST, | |
9709 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
9710 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
9711 | : (OP*)newUNOP(OP_READLINE, 0, | |
9712 | newUNOP(OP_RV2SV, 0, | |
9713 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 9714 | } |
7c6fadd6 RGS |
9715 | if (!readline_overriden) |
9716 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
f5284f61 | 9717 | /* we created the ops in PL_lex_op, so make yylval.ival a null op */ |
79072805 LW |
9718 | yylval.ival = OP_NULL; |
9719 | } | |
02aa26ce NT |
9720 | |
9721 | /* If it's none of the above, it must be a literal filehandle | |
9722 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 9723 | else { |
85e6fe83 | 9724 | GV *gv = gv_fetchpv(d,TRUE, SVt_PVIO); |
9b3023bc RGS |
9725 | PL_lex_op = readline_overriden |
9726 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
9727 | append_elem(OP_LIST, | |
9728 | newGVOP(OP_GV, 0, gv), | |
9729 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
9730 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
79072805 LW |
9731 | yylval.ival = OP_NULL; |
9732 | } | |
9733 | } | |
02aa26ce | 9734 | |
79072805 LW |
9735 | return s; |
9736 | } | |
9737 | ||
02aa26ce NT |
9738 | |
9739 | /* scan_str | |
9740 | takes: start position in buffer | |
09bef843 SB |
9741 | keep_quoted preserve \ on the embedded delimiter(s) |
9742 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
9743 | returns: position to continue reading from buffer |
9744 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
9745 | updates the read buffer. | |
9746 | ||
9747 | This subroutine pulls a string out of the input. It is called for: | |
9748 | q single quotes q(literal text) | |
9749 | ' single quotes 'literal text' | |
9750 | qq double quotes qq(interpolate $here please) | |
9751 | " double quotes "interpolate $here please" | |
9752 | qx backticks qx(/bin/ls -l) | |
9753 | ` backticks `/bin/ls -l` | |
9754 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
9755 | m// regexp match m/this/ | |
9756 | s/// regexp substitute s/this/that/ | |
9757 | tr/// string transliterate tr/this/that/ | |
9758 | y/// string transliterate y/this/that/ | |
9759 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 9760 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
9761 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
9762 | ||
9763 | In most of these cases (all but <>, patterns and transliterate) | |
9764 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
9765 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
9766 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
9767 | calls scan_str(). | |
4e553d73 | 9768 | |
02aa26ce NT |
9769 | It skips whitespace before the string starts, and treats the first |
9770 | character as the delimiter. If the delimiter is one of ([{< then | |
9771 | the corresponding "close" character )]}> is used as the closing | |
9772 | delimiter. It allows quoting of delimiters, and if the string has | |
9773 | balanced delimiters ([{<>}]) it allows nesting. | |
9774 | ||
37fd879b HS |
9775 | On success, the SV with the resulting string is put into lex_stuff or, |
9776 | if that is already non-NULL, into lex_repl. The second case occurs only | |
9777 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
9778 | For convenience, the terminating delimiter character is stuffed into | |
9779 | SvIVX of the SV. | |
02aa26ce NT |
9780 | */ |
9781 | ||
76e3520e | 9782 | STATIC char * |
09bef843 | 9783 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 9784 | { |
02aa26ce NT |
9785 | SV *sv; /* scalar value: string */ |
9786 | char *tmps; /* temp string, used for delimiter matching */ | |
9787 | register char *s = start; /* current position in the buffer */ | |
9788 | register char term; /* terminating character */ | |
9789 | register char *to; /* current position in the sv's data */ | |
9790 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 9791 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
975adce1 | 9792 | I32 termcode; /* terminating char. code */ |
a2a469f9 | 9793 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
975adce1 JH |
9794 | STRLEN termlen; /* length of terminating string */ |
9795 | char *last = NULL; /* last position for nesting bracket */ | |
02aa26ce NT |
9796 | |
9797 | /* skip space before the delimiter */ | |
fb73857a | 9798 | if (isSPACE(*s)) |
9799 | s = skipspace(s); | |
02aa26ce NT |
9800 | |
9801 | /* mark where we are, in case we need to report errors */ | |
79072805 | 9802 | CLINE; |
02aa26ce NT |
9803 | |
9804 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 9805 | term = *s; |
975adce1 JH |
9806 | if (!UTF) { |
9807 | termcode = termstr[0] = term; | |
9808 | termlen = 1; | |
9809 | } | |
9810 | else { | |
f8cf5370 | 9811 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
975adce1 JH |
9812 | Copy(s, termstr, termlen, U8); |
9813 | if (!UTF8_IS_INVARIANT(term)) | |
9814 | has_utf8 = TRUE; | |
9815 | } | |
b1c7b182 | 9816 | |
02aa26ce | 9817 | /* mark where we are */ |
57843af0 | 9818 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 9819 | PL_multi_open = term; |
02aa26ce NT |
9820 | |
9821 | /* find corresponding closing delimiter */ | |
93a17b20 | 9822 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
975adce1 JH |
9823 | termcode = termstr[0] = term = tmps[5]; |
9824 | ||
3280af22 | 9825 | PL_multi_close = term; |
79072805 | 9826 | |
02aa26ce | 9827 | /* create a new SV to hold the contents. 87 is leak category, I'm |
8d6dde3e IZ |
9828 | assuming. 79 is the SV's initial length. What a random number. */ |
9829 | sv = NEWSV(87,79); | |
ed6116ce | 9830 | sv_upgrade(sv, SVt_PVIV); |
0da6cfda | 9831 | SvIV_set(sv, termcode); |
a0d0e21e | 9832 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
9833 | |
9834 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 9835 | if (keep_delims) |
975adce1 JH |
9836 | sv_catpvn(sv, s, termlen); |
9837 | s += termlen; | |
93a17b20 | 9838 | for (;;) { |
975adce1 JH |
9839 | if (PL_encoding && !UTF) { |
9840 | bool cont = TRUE; | |
9841 | ||
9842 | while (cont) { | |
5e7e76a3 | 9843 | int offset = s - SvPVX_const(PL_linestr); |
975adce1 | 9844 | bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f8cf5370 | 9845 | &offset, (char*)termstr, termlen); |
5e7e76a3 | 9846 | const char *ns = SvPVX_const(PL_linestr) + offset; |
975adce1 JH |
9847 | char *svlast = SvEND(sv) - 1; |
9848 | ||
9849 | for (; s < ns; s++) { | |
9850 | if (*s == '\n' && !PL_rsfp) | |
9851 | CopLINE_inc(PL_curcop); | |
9852 | } | |
9853 | if (!found) | |
9854 | goto read_more_line; | |
9855 | else { | |
9856 | /* handle quoted delimiters */ | |
bc636a03 | 9857 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
24c2fff4 | 9858 | const char *t; |
5e7e76a3 | 9859 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
975adce1 JH |
9860 | t--; |
9861 | if ((svlast-1 - t) % 2) { | |
9862 | if (!keep_quoted) { | |
9863 | *(svlast-1) = term; | |
9864 | *svlast = '\0'; | |
9865 | SvCUR_set(sv, SvCUR(sv) - 1); | |
9866 | } | |
9867 | continue; | |
9868 | } | |
9869 | } | |
9870 | if (PL_multi_open == PL_multi_close) { | |
9871 | cont = FALSE; | |
9872 | } | |
9873 | else { | |
24c2fff4 NC |
9874 | const char *t; |
9875 | char *w; | |
975adce1 JH |
9876 | if (!last) |
9877 | last = SvPVX(sv); | |
24c2fff4 | 9878 | for (t = w = last; t < svlast; w++, t++) { |
975adce1 JH |
9879 | /* At here, all closes are "was quoted" one, |
9880 | so we don't check PL_multi_close. */ | |
9881 | if (*t == '\\') { | |
9882 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
9883 | t++; | |
9884 | else | |
9885 | *w++ = *t++; | |
9886 | } | |
9887 | else if (*t == PL_multi_open) | |
9888 | brackets++; | |
9889 | ||
9890 | *w = *t; | |
9891 | } | |
9892 | if (w < t) { | |
9893 | *w++ = term; | |
9894 | *w = '\0'; | |
5e7e76a3 | 9895 | SvCUR_set(sv, w - SvPVX_const(sv)); |
975adce1 JH |
9896 | } |
9897 | last = w; | |
9898 | if (--brackets <= 0) | |
9899 | cont = FALSE; | |
9900 | } | |
9901 | } | |
9902 | } | |
9903 | if (!keep_delims) { | |
9904 | SvCUR_set(sv, SvCUR(sv) - 1); | |
9905 | *SvEND(sv) = '\0'; | |
9906 | } | |
9907 | break; | |
9908 | } | |
9909 | ||
02aa26ce | 9910 | /* extend sv if need be */ |
3280af22 | 9911 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 9912 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 9913 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 9914 | |
02aa26ce | 9915 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
9916 | if (PL_multi_open == PL_multi_close) { |
9917 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 9918 | /* embedded newlines increment the current line number */ |
3280af22 | 9919 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 9920 | CopLINE_inc(PL_curcop); |
02aa26ce | 9921 | /* handle quoted delimiters */ |
3280af22 | 9922 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 9923 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 9924 | s++; |
02aa26ce | 9925 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
9926 | else |
9927 | *to++ = *s++; | |
9928 | } | |
02aa26ce NT |
9929 | /* terminate when run out of buffer (the for() condition), or |
9930 | have found the terminator */ | |
975adce1 JH |
9931 | else if (*s == term) { |
9932 | if (termlen == 1) | |
9933 | break; | |
f8cf5370 | 9934 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
975adce1 JH |
9935 | break; |
9936 | } | |
63cd0674 | 9937 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 9938 | has_utf8 = TRUE; |
93a17b20 LW |
9939 | *to = *s; |
9940 | } | |
9941 | } | |
02aa26ce NT |
9942 | |
9943 | /* if the terminator isn't the same as the start character (e.g., | |
9944 | matched brackets), we have to allow more in the quoting, and | |
9945 | be prepared for nested brackets. | |
9946 | */ | |
93a17b20 | 9947 | else { |
02aa26ce | 9948 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 9949 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 9950 | /* embedded newlines increment the line count */ |
3280af22 | 9951 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 9952 | CopLINE_inc(PL_curcop); |
02aa26ce | 9953 | /* backslashes can escape the open or closing characters */ |
3280af22 | 9954 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
9955 | if (!keep_quoted && |
9956 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
9957 | s++; |
9958 | else | |
9959 | *to++ = *s++; | |
9960 | } | |
02aa26ce | 9961 | /* allow nested opens and closes */ |
3280af22 | 9962 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 9963 | break; |
3280af22 | 9964 | else if (*s == PL_multi_open) |
93a17b20 | 9965 | brackets++; |
63cd0674 | 9966 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 9967 | has_utf8 = TRUE; |
93a17b20 LW |
9968 | *to = *s; |
9969 | } | |
9970 | } | |
02aa26ce | 9971 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 9972 | *to = '\0'; |
5e7e76a3 | 9973 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 9974 | |
02aa26ce NT |
9975 | /* |
9976 | * this next chunk reads more into the buffer if we're not done yet | |
9977 | */ | |
9978 | ||
b1c7b182 GS |
9979 | if (s < PL_bufend) |
9980 | break; /* handle case where we are done yet :-) */ | |
79072805 | 9981 | |
6a27c188 | 9982 | #ifndef PERL_STRICT_CR |
5e7e76a3 | 9983 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
9984 | if ((to[-2] == '\r' && to[-1] == '\n') || |
9985 | (to[-2] == '\n' && to[-1] == '\r')) | |
9986 | { | |
f63a84b2 LW |
9987 | to[-2] = '\n'; |
9988 | to--; | |
5e7e76a3 | 9989 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
9990 | } |
9991 | else if (to[-1] == '\r') | |
9992 | to[-1] = '\n'; | |
9993 | } | |
5e7e76a3 | 9994 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
9995 | to[-1] = '\n'; |
9996 | #endif | |
9997 | ||
975adce1 | 9998 | read_more_line: |
02aa26ce NT |
9999 | /* if we're out of file, or a read fails, bail and reset the current |
10000 | line marker so we can report where the unterminated string began | |
10001 | */ | |
3280af22 NIS |
10002 | if (!PL_rsfp || |
10003 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { | |
c07a80fd | 10004 | sv_free(sv); |
eb160463 | 10005 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
79072805 LW |
10006 | return Nullch; |
10007 | } | |
02aa26ce | 10008 | /* we read a line, so increment our line counter */ |
57843af0 | 10009 | CopLINE_inc(PL_curcop); |
a0ed51b3 | 10010 | |
02aa26ce | 10011 | /* update debugger info */ |
3280af22 | 10012 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
79072805 LW |
10013 | SV *sv = NEWSV(88,0); |
10014 | ||
93a17b20 | 10015 | sv_upgrade(sv, SVt_PVMG); |
3280af22 | 10016 | sv_setsv(sv,PL_linestr); |
0ac0412a | 10017 | (void)SvIOK_on(sv); |
0da6cfda | 10018 | SvIV_set(sv, 0); |
57843af0 | 10019 | av_store(CopFILEAV(PL_curcop), (I32)CopLINE(PL_curcop), sv); |
395c3793 | 10020 | } |
a0ed51b3 | 10021 | |
3280af22 NIS |
10022 | /* having changed the buffer, we must update PL_bufend */ |
10023 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 10024 | PL_last_lop = PL_last_uni = Nullch; |
378cc40b | 10025 | } |
4e553d73 | 10026 | |
02aa26ce NT |
10027 | /* at this point, we have successfully read the delimited string */ |
10028 | ||
975adce1 JH |
10029 | if (!PL_encoding || UTF) { |
10030 | if (keep_delims) | |
10031 | sv_catpvn(sv, s, termlen); | |
10032 | s += termlen; | |
10033 | } | |
10034 | if (has_utf8 || PL_encoding) | |
b1c7b182 | 10035 | SvUTF8_on(sv); |
5b7ea690 | 10036 | |
57843af0 | 10037 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
10038 | |
10039 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
10040 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
10041 | SvLEN_set(sv, SvCUR(sv) + 1); | |
ea5389ca | 10042 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 10043 | } |
02aa26ce NT |
10044 | |
10045 | /* decide whether this is the first or second quoted string we've read | |
10046 | for this op | |
10047 | */ | |
4e553d73 | 10048 | |
3280af22 NIS |
10049 | if (PL_lex_stuff) |
10050 | PL_lex_repl = sv; | |
79072805 | 10051 | else |
3280af22 | 10052 | PL_lex_stuff = sv; |
378cc40b LW |
10053 | return s; |
10054 | } | |
10055 | ||
02aa26ce NT |
10056 | /* |
10057 | scan_num | |
10058 | takes: pointer to position in buffer | |
10059 | returns: pointer to new position in buffer | |
10060 | side-effects: builds ops for the constant in yylval.op | |
10061 | ||
10062 | Read a number in any of the formats that Perl accepts: | |
10063 | ||
7fd134d9 JH |
10064 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
10065 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
10066 | 0b[01](_?[01])* |
10067 | 0[0-7](_?[0-7])* | |
10068 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 10069 | |
3280af22 | 10070 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
10071 | thing it reads. |
10072 | ||
10073 | If it reads a number without a decimal point or an exponent, it will | |
10074 | try converting the number to an integer and see if it can do so | |
10075 | without loss of precision. | |
10076 | */ | |
4e553d73 | 10077 | |
378cc40b | 10078 | char * |
b73d6f50 | 10079 | Perl_scan_num(pTHX_ char *start, YYSTYPE* lvalp) |
378cc40b | 10080 | { |
a00f3e00 | 10081 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
10082 | register char *d; /* destination in temp buffer */ |
10083 | register char *e; /* end of temp buffer */ | |
86554af2 | 10084 | NV nv; /* number read, as a double */ |
a7cb1f99 | 10085 | SV *sv = Nullsv; /* place to put the converted number */ |
a86a20aa | 10086 | bool floatit; /* boolean: int or float? */ |
a00f3e00 AL |
10087 | const char *lastub = 0; /* position of last underbar */ |
10088 | static char const number_too_long[] = "Number too long"; | |
378cc40b | 10089 | |
02aa26ce NT |
10090 | /* We use the first character to decide what type of number this is */ |
10091 | ||
378cc40b | 10092 | switch (*s) { |
79072805 | 10093 | default: |
cea2e8a9 | 10094 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 10095 | |
02aa26ce | 10096 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 10097 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
10098 | case '0': |
10099 | { | |
02aa26ce NT |
10100 | /* variables: |
10101 | u holds the "number so far" | |
4f19785b WSI |
10102 | shift the power of 2 of the base |
10103 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
10104 | overflowed was the number more than we can hold? |
10105 | ||
10106 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
10107 | we in octal/hex/binary?" indicator to disallow hex characters |
10108 | when in octal mode. | |
02aa26ce | 10109 | */ |
9e24b6e2 JH |
10110 | NV n = 0.0; |
10111 | UV u = 0; | |
79072805 | 10112 | I32 shift; |
9e24b6e2 | 10113 | bool overflowed = FALSE; |
8ded1040 | 10114 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
9e24b6e2 | 10115 | static NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
a00f3e00 | 10116 | static char const* bases[5] = { "", "binary", "", "octal", |
9e24b6e2 | 10117 | "hexadecimal" }; |
a00f3e00 | 10118 | static char const* Bases[5] = { "", "Binary", "", "Octal", |
9e24b6e2 | 10119 | "Hexadecimal" }; |
a00f3e00 | 10120 | static char const *maxima[5] = { "", |
9e24b6e2 JH |
10121 | "0b11111111111111111111111111111111", |
10122 | "", | |
893fe2c2 | 10123 | "037777777777", |
9e24b6e2 | 10124 | "0xffffffff" }; |
a00f3e00 | 10125 | const char *base, *Base, *max; |
378cc40b | 10126 | |
02aa26ce | 10127 | /* check for hex */ |
378cc40b LW |
10128 | if (s[1] == 'x') { |
10129 | shift = 4; | |
10130 | s += 2; | |
8ded1040 | 10131 | just_zero = FALSE; |
4f19785b WSI |
10132 | } else if (s[1] == 'b') { |
10133 | shift = 1; | |
10134 | s += 2; | |
8ded1040 | 10135 | just_zero = FALSE; |
378cc40b | 10136 | } |
02aa26ce | 10137 | /* check for a decimal in disguise */ |
b78218b7 | 10138 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 10139 | goto decimal; |
02aa26ce | 10140 | /* so it must be octal */ |
928753ea | 10141 | else { |
378cc40b | 10142 | shift = 3; |
928753ea JH |
10143 | s++; |
10144 | } | |
10145 | ||
10146 | if (*s == '_') { | |
10147 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10148 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10149 | "Misplaced _ in number"); |
10150 | lastub = s++; | |
10151 | } | |
9e24b6e2 JH |
10152 | |
10153 | base = bases[shift]; | |
10154 | Base = Bases[shift]; | |
10155 | max = maxima[shift]; | |
02aa26ce | 10156 | |
4f19785b | 10157 | /* read the rest of the number */ |
378cc40b | 10158 | for (;;) { |
9e24b6e2 | 10159 | /* x is used in the overflow test, |
893fe2c2 | 10160 | b is the digit we're adding on. */ |
9e24b6e2 | 10161 | UV x, b; |
55497cff | 10162 | |
378cc40b | 10163 | switch (*s) { |
02aa26ce NT |
10164 | |
10165 | /* if we don't mention it, we're done */ | |
378cc40b LW |
10166 | default: |
10167 | goto out; | |
02aa26ce | 10168 | |
928753ea | 10169 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 10170 | case '_': |
928753ea | 10171 | if (ckWARN(WARN_SYNTAX) && lastub && s == lastub + 1) |
9014280d | 10172 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10173 | "Misplaced _ in number"); |
10174 | lastub = s++; | |
de3bb511 | 10175 | break; |
02aa26ce NT |
10176 | |
10177 | /* 8 and 9 are not octal */ | |
378cc40b | 10178 | case '8': case '9': |
4f19785b | 10179 | if (shift == 3) |
cea2e8a9 | 10180 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 10181 | /* FALL THROUGH */ |
02aa26ce NT |
10182 | |
10183 | /* octal digits */ | |
4f19785b | 10184 | case '2': case '3': case '4': |
378cc40b | 10185 | case '5': case '6': case '7': |
4f19785b | 10186 | if (shift == 1) |
cea2e8a9 | 10187 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
10188 | /* FALL THROUGH */ |
10189 | ||
10190 | case '0': case '1': | |
02aa26ce | 10191 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 10192 | goto digit; |
02aa26ce NT |
10193 | |
10194 | /* hex digits */ | |
378cc40b LW |
10195 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
10196 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 10197 | /* make sure they said 0x */ |
378cc40b LW |
10198 | if (shift != 4) |
10199 | goto out; | |
55497cff | 10200 | b = (*s++ & 7) + 9; |
02aa26ce NT |
10201 | |
10202 | /* Prepare to put the digit we have onto the end | |
10203 | of the number so far. We check for overflows. | |
10204 | */ | |
10205 | ||
55497cff | 10206 | digit: |
8ded1040 | 10207 | just_zero = FALSE; |
9e24b6e2 JH |
10208 | if (!overflowed) { |
10209 | x = u << shift; /* make room for the digit */ | |
10210 | ||
10211 | if ((x >> shift) != u | |
10212 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
10213 | overflowed = TRUE; |
10214 | n = (NV) u; | |
767a6a26 | 10215 | if (ckWARN_d(WARN_OVERFLOW)) |
9014280d | 10216 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), |
9e24b6e2 JH |
10217 | "Integer overflow in %s number", |
10218 | base); | |
10219 | } else | |
10220 | u = x | b; /* add the digit to the end */ | |
10221 | } | |
10222 | if (overflowed) { | |
10223 | n *= nvshift[shift]; | |
10224 | /* If an NV has not enough bits in its | |
10225 | * mantissa to represent an UV this summing of | |
10226 | * small low-order numbers is a waste of time | |
10227 | * (because the NV cannot preserve the | |
10228 | * low-order bits anyway): we could just | |
10229 | * remember when did we overflow and in the | |
10230 | * end just multiply n by the right | |
10231 | * amount. */ | |
10232 | n += (NV) b; | |
55497cff | 10233 | } |
378cc40b LW |
10234 | break; |
10235 | } | |
10236 | } | |
02aa26ce NT |
10237 | |
10238 | /* if we get here, we had success: make a scalar value from | |
10239 | the number. | |
10240 | */ | |
378cc40b | 10241 | out: |
928753ea JH |
10242 | |
10243 | /* final misplaced underbar check */ | |
10244 | if (s[-1] == '_') { | |
10245 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10246 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
10247 | } |
10248 | ||
79072805 | 10249 | sv = NEWSV(92,0); |
9e24b6e2 | 10250 | if (overflowed) { |
767a6a26 | 10251 | if (ckWARN(WARN_PORTABLE) && n > 4294967295.0) |
9014280d | 10252 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
10253 | "%s number > %s non-portable", |
10254 | Base, max); | |
10255 | sv_setnv(sv, n); | |
10256 | } | |
10257 | else { | |
15041a67 | 10258 | #if UVSIZE > 4 |
767a6a26 | 10259 | if (ckWARN(WARN_PORTABLE) && u > 0xffffffff) |
9014280d | 10260 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
10261 | "%s number > %s non-portable", |
10262 | Base, max); | |
2cc4c2dc | 10263 | #endif |
9e24b6e2 JH |
10264 | sv_setuv(sv, u); |
10265 | } | |
8ded1040 | 10266 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
a00f3e00 | 10267 | sv = new_constant(start, s - start, "integer", |
8ded1040 NC |
10268 | sv, Nullsv, NULL); |
10269 | else if (PL_hints & HINT_NEW_BINARY) | |
b3ac6de7 | 10270 | sv = new_constant(start, s - start, "binary", sv, Nullsv, NULL); |
378cc40b LW |
10271 | } |
10272 | break; | |
02aa26ce NT |
10273 | |
10274 | /* | |
10275 | handle decimal numbers. | |
10276 | we're also sent here when we read a 0 as the first digit | |
10277 | */ | |
378cc40b LW |
10278 | case '1': case '2': case '3': case '4': case '5': |
10279 | case '6': case '7': case '8': case '9': case '.': | |
10280 | decimal: | |
3280af22 NIS |
10281 | d = PL_tokenbuf; |
10282 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 10283 | floatit = FALSE; |
02aa26ce NT |
10284 | |
10285 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 10286 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 10287 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
10288 | if -w is on |
10289 | */ | |
93a17b20 | 10290 | if (*s == '_') { |
928753ea | 10291 | if (ckWARN(WARN_SYNTAX) && lastub && s == lastub + 1) |
9014280d | 10292 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10293 | "Misplaced _ in number"); |
10294 | lastub = s++; | |
93a17b20 | 10295 | } |
fc36a67e | 10296 | else { |
02aa26ce | 10297 | /* check for end of fixed-length buffer */ |
fc36a67e | 10298 | if (d >= e) |
cea2e8a9 | 10299 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 10300 | /* if we're ok, copy the character */ |
378cc40b | 10301 | *d++ = *s++; |
fc36a67e | 10302 | } |
378cc40b | 10303 | } |
02aa26ce NT |
10304 | |
10305 | /* final misplaced underbar check */ | |
928753ea | 10306 | if (lastub && s == lastub + 1) { |
d008e5eb | 10307 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 10308 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 10309 | } |
02aa26ce NT |
10310 | |
10311 | /* read a decimal portion if there is one. avoid | |
10312 | 3..5 being interpreted as the number 3. followed | |
10313 | by .5 | |
10314 | */ | |
2f3197b3 | 10315 | if (*s == '.' && s[1] != '.') { |
79072805 | 10316 | floatit = TRUE; |
378cc40b | 10317 | *d++ = *s++; |
02aa26ce | 10318 | |
928753ea JH |
10319 | if (*s == '_') { |
10320 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10321 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10322 | "Misplaced _ in number"); |
10323 | lastub = s; | |
10324 | } | |
10325 | ||
10326 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 10327 | */ |
fc36a67e | 10328 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 10329 | /* fixed length buffer check */ |
fc36a67e | 10330 | if (d >= e) |
cea2e8a9 | 10331 | Perl_croak(aTHX_ number_too_long); |
928753ea JH |
10332 | if (*s == '_') { |
10333 | if (ckWARN(WARN_SYNTAX) && lastub && s == lastub + 1) | |
9014280d | 10334 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10335 | "Misplaced _ in number"); |
10336 | lastub = s; | |
10337 | } | |
10338 | else | |
fc36a67e | 10339 | *d++ = *s; |
378cc40b | 10340 | } |
928753ea JH |
10341 | /* fractional part ending in underbar? */ |
10342 | if (s[-1] == '_') { | |
10343 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10344 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
10345 | "Misplaced _ in number"); |
10346 | } | |
dd629d5b GS |
10347 | if (*s == '.' && isDIGIT(s[1])) { |
10348 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 10349 | s = start; |
dd629d5b GS |
10350 | goto vstring; |
10351 | } | |
378cc40b | 10352 | } |
02aa26ce NT |
10353 | |
10354 | /* read exponent part, if present */ | |
3c71ae1e | 10355 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
10356 | floatit = TRUE; |
10357 | s++; | |
02aa26ce NT |
10358 | |
10359 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 10360 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 10361 | |
7fd134d9 JH |
10362 | /* stray preinitial _ */ |
10363 | if (*s == '_') { | |
10364 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10365 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
10366 | "Misplaced _ in number"); |
10367 | lastub = s++; | |
10368 | } | |
10369 | ||
02aa26ce | 10370 | /* allow positive or negative exponent */ |
378cc40b LW |
10371 | if (*s == '+' || *s == '-') |
10372 | *d++ = *s++; | |
02aa26ce | 10373 | |
7fd134d9 JH |
10374 | /* stray initial _ */ |
10375 | if (*s == '_') { | |
10376 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 10377 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
10378 | "Misplaced _ in number"); |
10379 | lastub = s++; | |
10380 | } | |
10381 | ||
7fd134d9 JH |
10382 | /* read digits of exponent */ |
10383 | while (isDIGIT(*s) || *s == '_') { | |
10384 | if (isDIGIT(*s)) { | |
10385 | if (d >= e) | |
10386 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 10387 | *d++ = *s++; |
7fd134d9 JH |
10388 | } |
10389 | else { | |
10390 | if (ckWARN(WARN_SYNTAX) && | |
10391 | ((lastub && s == lastub + 1) || | |
b3b48e3e | 10392 | (!isDIGIT(s[1]) && s[1] != '_'))) |
9014280d | 10393 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 | 10394 | "Misplaced _ in number"); |
b3b48e3e | 10395 | lastub = s++; |
7fd134d9 | 10396 | } |
7fd134d9 | 10397 | } |
378cc40b | 10398 | } |
02aa26ce | 10399 | |
02aa26ce NT |
10400 | |
10401 | /* make an sv from the string */ | |
79072805 | 10402 | sv = NEWSV(92,0); |
097ee67d | 10403 | |
0b7fceb9 | 10404 | /* |
58bb9ec3 NC |
10405 | We try to do an integer conversion first if no characters |
10406 | indicating "float" have been found. | |
0b7fceb9 MU |
10407 | */ |
10408 | ||
10409 | if (!floatit) { | |
58bb9ec3 NC |
10410 | UV uv; |
10411 | int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); | |
10412 | ||
10413 | if (flags == IS_NUMBER_IN_UV) { | |
10414 | if (uv <= IV_MAX) | |
86554af2 | 10415 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 10416 | else |
c239479b | 10417 | sv_setuv(sv, uv); |
58bb9ec3 NC |
10418 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
10419 | if (uv <= (UV) IV_MIN) | |
10420 | sv_setiv(sv, -(IV)uv); | |
10421 | else | |
10422 | floatit = TRUE; | |
10423 | } else | |
10424 | floatit = TRUE; | |
10425 | } | |
0b7fceb9 | 10426 | if (floatit) { |
58bb9ec3 NC |
10427 | /* terminate the string */ |
10428 | *d = '\0'; | |
86554af2 JH |
10429 | nv = Atof(PL_tokenbuf); |
10430 | sv_setnv(sv, nv); | |
10431 | } | |
86554af2 | 10432 | |
b8403495 JH |
10433 | if ( floatit ? (PL_hints & HINT_NEW_FLOAT) : |
10434 | (PL_hints & HINT_NEW_INTEGER) ) | |
4e553d73 | 10435 | sv = new_constant(PL_tokenbuf, d - PL_tokenbuf, |
b8403495 JH |
10436 | (floatit ? "float" : "integer"), |
10437 | sv, Nullsv, NULL); | |
378cc40b | 10438 | break; |
0b7fceb9 | 10439 | |
e312add1 | 10440 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 10441 | case 'v': |
dd629d5b | 10442 | vstring: |
f4758303 | 10443 | sv = NEWSV(92,5); /* preallocate storage space */ |
33426ec1 JH |
10444 | s = scan_vstring(s,sv); |
10445 | DEBUG_T( { PerlIO_printf(Perl_debug_log, | |
10446 | "### Saw v-string before '%s'\n", s); | |
10447 | } ); | |
a7cb1f99 | 10448 | break; |
79072805 | 10449 | } |
a687059c | 10450 | |
02aa26ce NT |
10451 | /* make the op for the constant and return */ |
10452 | ||
a86a20aa | 10453 | if (sv) |
b73d6f50 | 10454 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 10455 | else |
b73d6f50 | 10456 | lvalp->opval = Nullop; |
a687059c | 10457 | |
e2b56717 | 10458 | return (char *)s; |
378cc40b LW |
10459 | } |
10460 | ||
76e3520e | 10461 | STATIC char * |
cea2e8a9 | 10462 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 10463 | { |
79072805 | 10464 | register char *eol; |
378cc40b | 10465 | register char *t; |
79cb57f6 | 10466 | SV *stuff = newSVpvn("",0); |
79072805 | 10467 | bool needargs = FALSE; |
9dea3e30 | 10468 | bool eofmt = FALSE; |
378cc40b | 10469 | |
79072805 | 10470 | while (!needargs) { |
6a1959a6 | 10471 | if (*s == '.') { |
79072805 | 10472 | /*SUPPRESS 530*/ |
51882d45 | 10473 | #ifdef PERL_STRICT_CR |
bf4acbe4 | 10474 | for (t = s+1;SPACE_OR_TAB(*t); t++) ; |
51882d45 | 10475 | #else |
bf4acbe4 | 10476 | for (t = s+1;SPACE_OR_TAB(*t) || *t == '\r'; t++) ; |
51882d45 | 10477 | #endif |
9dea3e30 WL |
10478 | if (*t == '\n' || t == PL_bufend) { |
10479 | eofmt = TRUE; | |
79072805 | 10480 | break; |
9dea3e30 | 10481 | } |
79072805 | 10482 | } |
3280af22 | 10483 | if (PL_in_eval && !PL_rsfp) { |
206b424e | 10484 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 10485 | if (!eol++) |
3280af22 | 10486 | eol = PL_bufend; |
0f85fab0 LW |
10487 | } |
10488 | else | |
3280af22 | 10489 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 10490 | if (*s != '#') { |
a0d0e21e LW |
10491 | for (t = s; t < eol; t++) { |
10492 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
10493 | needargs = FALSE; | |
10494 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 10495 | } |
a0d0e21e LW |
10496 | if (*t == '@' || *t == '^') |
10497 | needargs = TRUE; | |
378cc40b | 10498 | } |
7121b347 MG |
10499 | if (eol > s) { |
10500 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 10501 | #ifndef PERL_STRICT_CR |
7121b347 MG |
10502 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
10503 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
10504 | end[-2] = '\n'; | |
10505 | end[-1] = '\0'; | |
a8dc4fe8 | 10506 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 10507 | } |
2dc4c65b | 10508 | #endif |
7121b347 MG |
10509 | } |
10510 | else | |
10511 | break; | |
79072805 | 10512 | } |
5e7e76a3 | 10513 | s = (char*)eol; |
3280af22 NIS |
10514 | if (PL_rsfp) { |
10515 | s = filter_gets(PL_linestr, PL_rsfp, 0); | |
10516 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
10517 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); | |
207e3d1a | 10518 | PL_last_lop = PL_last_uni = Nullch; |
79072805 | 10519 | if (!s) { |
3280af22 | 10520 | s = PL_bufptr; |
378cc40b LW |
10521 | break; |
10522 | } | |
378cc40b | 10523 | } |
463ee0b2 | 10524 | incline(s); |
79072805 | 10525 | } |
a0d0e21e LW |
10526 | enough: |
10527 | if (SvCUR(stuff)) { | |
3280af22 | 10528 | PL_expect = XTERM; |
79072805 | 10529 | if (needargs) { |
3280af22 NIS |
10530 | PL_lex_state = LEX_NORMAL; |
10531 | PL_nextval[PL_nexttoke].ival = 0; | |
79072805 LW |
10532 | force_next(','); |
10533 | } | |
a0d0e21e | 10534 | else |
3280af22 | 10535 | PL_lex_state = LEX_FORMLINE; |
d2aaa77e | 10536 | if (!IN_BYTES) { |
5e7e76a3 | 10537 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
d2aaa77e JH |
10538 | SvUTF8_on(stuff); |
10539 | else if (PL_encoding) | |
10540 | sv_recode_to_utf8(stuff, PL_encoding); | |
10541 | } | |
3280af22 | 10542 | PL_nextval[PL_nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 10543 | force_next(THING); |
3280af22 | 10544 | PL_nextval[PL_nexttoke].ival = OP_FORMLINE; |
79072805 | 10545 | force_next(LSTOP); |
378cc40b | 10546 | } |
79072805 | 10547 | else { |
8990e307 | 10548 | SvREFCNT_dec(stuff); |
9dea3e30 WL |
10549 | if (eofmt) |
10550 | PL_lex_formbrack = 0; | |
3280af22 | 10551 | PL_bufptr = s; |
79072805 LW |
10552 | } |
10553 | return s; | |
378cc40b | 10554 | } |
a687059c | 10555 | |
76e3520e | 10556 | STATIC void |
cea2e8a9 | 10557 | S_set_csh(pTHX) |
a687059c | 10558 | { |
ae986130 | 10559 | #ifdef CSH |
3280af22 NIS |
10560 | if (!PL_cshlen) |
10561 | PL_cshlen = strlen(PL_cshname); | |
ae986130 | 10562 | #endif |
a687059c | 10563 | } |
463ee0b2 | 10564 | |
ba6d6ac9 | 10565 | I32 |
864dbfa3 | 10566 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 10567 | { |
3280af22 NIS |
10568 | I32 oldsavestack_ix = PL_savestack_ix; |
10569 | CV* outsidecv = PL_compcv; | |
8990e307 | 10570 | |
3280af22 NIS |
10571 | if (PL_compcv) { |
10572 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 10573 | } |
7766f137 | 10574 | SAVEI32(PL_subline); |
3280af22 | 10575 | save_item(PL_subname); |
3280af22 | 10576 | SAVESPTR(PL_compcv); |
3280af22 NIS |
10577 | |
10578 | PL_compcv = (CV*)NEWSV(1104,0); | |
10579 | sv_upgrade((SV *)PL_compcv, is_format ? SVt_PVFM : SVt_PVCV); | |
10580 | CvFLAGS(PL_compcv) |= flags; | |
10581 | ||
57843af0 | 10582 | PL_subline = CopLINE(PL_curcop); |
9755d405 | 10583 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
3280af22 | 10584 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc(outsidecv); |
d7afa7f5 | 10585 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
4d1ff10f | 10586 | #ifdef USE_5005THREADS |
533c011a NIS |
10587 | CvOWNER(PL_compcv) = 0; |
10588 | New(666, CvMUTEXP(PL_compcv), 1, perl_mutex); | |
10589 | MUTEX_INIT(CvMUTEXP(PL_compcv)); | |
4d1ff10f | 10590 | #endif /* USE_5005THREADS */ |
748a9306 | 10591 | |
8990e307 LW |
10592 | return oldsavestack_ix; |
10593 | } | |
10594 | ||
084592ab CN |
10595 | #ifdef __SC__ |
10596 | #pragma segment Perl_yylex | |
10597 | #endif | |
8990e307 | 10598 | int |
864dbfa3 | 10599 | Perl_yywarn(pTHX_ char *s) |
8990e307 | 10600 | { |
faef0170 | 10601 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 10602 | yyerror(s); |
faef0170 | 10603 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 10604 | return 0; |
8990e307 LW |
10605 | } |
10606 | ||
10607 | int | |
864dbfa3 | 10608 | Perl_yyerror(pTHX_ char *s) |
463ee0b2 | 10609 | { |
a00f3e00 AL |
10610 | const char *where = NULL; |
10611 | const char *context = NULL; | |
68dc0745 | 10612 | int contlen = -1; |
46fc3d4c | 10613 | SV *msg; |
463ee0b2 | 10614 | |
3280af22 | 10615 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 10616 | where = "at EOF"; |
3280af22 NIS |
10617 | else if (PL_bufptr > PL_oldoldbufptr && PL_bufptr - PL_oldoldbufptr < 200 && |
10618 | PL_oldoldbufptr != PL_oldbufptr && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
10619 | /* |
10620 | Only for NetWare: | |
10621 | The code below is removed for NetWare because it abends/crashes on NetWare | |
10622 | when the script has error such as not having the closing quotes like: | |
10623 | if ($var eq "value) | |
10624 | Checking of white spaces is anyway done in NetWare code. | |
10625 | */ | |
10626 | #ifndef NETWARE | |
3280af22 NIS |
10627 | while (isSPACE(*PL_oldoldbufptr)) |
10628 | PL_oldoldbufptr++; | |
f355267c | 10629 | #endif |
3280af22 NIS |
10630 | context = PL_oldoldbufptr; |
10631 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 10632 | } |
3280af22 NIS |
10633 | else if (PL_bufptr > PL_oldbufptr && PL_bufptr - PL_oldbufptr < 200 && |
10634 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
10635 | /* |
10636 | Only for NetWare: | |
10637 | The code below is removed for NetWare because it abends/crashes on NetWare | |
10638 | when the script has error such as not having the closing quotes like: | |
10639 | if ($var eq "value) | |
10640 | Checking of white spaces is anyway done in NetWare code. | |
10641 | */ | |
10642 | #ifndef NETWARE | |
3280af22 NIS |
10643 | while (isSPACE(*PL_oldbufptr)) |
10644 | PL_oldbufptr++; | |
f355267c | 10645 | #endif |
3280af22 NIS |
10646 | context = PL_oldbufptr; |
10647 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
10648 | } |
10649 | else if (yychar > 255) | |
68dc0745 | 10650 | where = "next token ???"; |
cdfb297e GS |
10651 | #ifdef USE_PURE_BISON |
10652 | /* GNU Bison sets the value -2 */ | |
10653 | else if (yychar == -2) { | |
10654 | #else | |
463ee0b2 | 10655 | else if ((yychar & 127) == 127) { |
cdfb297e | 10656 | #endif |
3280af22 NIS |
10657 | if (PL_lex_state == LEX_NORMAL || |
10658 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 10659 | where = "at end of line"; |
3280af22 | 10660 | else if (PL_lex_inpat) |
68dc0745 | 10661 | where = "within pattern"; |
463ee0b2 | 10662 | else |
68dc0745 | 10663 | where = "within string"; |
463ee0b2 | 10664 | } |
46fc3d4c | 10665 | else { |
79cb57f6 | 10666 | SV *where_sv = sv_2mortal(newSVpvn("next char ", 10)); |
46fc3d4c | 10667 | if (yychar < 32) |
cea2e8a9 | 10668 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
46fc3d4c | 10669 | else if (isPRINT_LC(yychar)) |
cea2e8a9 | 10670 | Perl_sv_catpvf(aTHX_ where_sv, "%c", yychar); |
463ee0b2 | 10671 | else |
cea2e8a9 | 10672 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
5e7e76a3 | 10673 | where = SvPVX_const(where_sv); |
463ee0b2 | 10674 | } |
46fc3d4c | 10675 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 10676 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 10677 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 10678 | if (context) |
cea2e8a9 | 10679 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 10680 | else |
cea2e8a9 | 10681 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 10682 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 10683 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 10684 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 10685 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 10686 | PL_multi_end = 0; |
a0d0e21e | 10687 | } |
c77beb56 NC |
10688 | if (PL_in_eval & EVAL_WARNONLY && ckWARN_d(WARN_SYNTAX)) |
10689 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, msg); | |
463ee0b2 | 10690 | else |
5a844595 | 10691 | qerror(msg); |
c7d6bfb2 GS |
10692 | if (PL_error_count >= 10) { |
10693 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 10694 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
248c2a4d | 10695 | ERRSV, OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
10696 | else |
10697 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 10698 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 10699 | } |
3280af22 NIS |
10700 | PL_in_my = 0; |
10701 | PL_in_my_stash = Nullhv; | |
463ee0b2 LW |
10702 | return 0; |
10703 | } | |
084592ab CN |
10704 | #ifdef __SC__ |
10705 | #pragma segment Main | |
10706 | #endif | |
4e35701f | 10707 | |
b250498f | 10708 | STATIC char* |
3ae08724 | 10709 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 10710 | { |
24c2fff4 | 10711 | const STRLEN slen = SvCUR(PL_linestr); |
92a78a40 | 10712 | switch (s[0]) { |
4e553d73 NIS |
10713 | case 0xFF: |
10714 | if (s[1] == 0xFE) { | |
92a78a40 | 10715 | /* UTF-16 little-endian? (or UTF32-LE?) */ |
3ae08724 | 10716 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
92a78a40 | 10717 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-LE"); |
01ec43d0 | 10718 | #ifndef PERL_NO_UTF16_FILTER |
92a78a40 | 10719 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF16-LE script encoding (BOM)\n"); |
3ae08724 | 10720 | s += 2; |
92a78a40 | 10721 | utf16le: |
dea0fc0b JH |
10722 | if (PL_bufend > (char*)s) { |
10723 | U8 *news; | |
10724 | I32 newlen; | |
10725 | ||
10726 | filter_add(utf16rev_textfilter, NULL); | |
10727 | New(898, news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); | |
6dc97886 NC |
10728 | utf16_to_utf8_reversed(s, news, |
10729 | PL_bufend - (char*)s - 1, | |
10730 | &newlen); | |
92a78a40 | 10731 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
dea0fc0b | 10732 | Safefree(news); |
92a78a40 JH |
10733 | SvUTF8_on(PL_linestr); |
10734 | s = (U8*)SvPVX(PL_linestr); | |
10735 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
dea0fc0b | 10736 | } |
b250498f | 10737 | #else |
92a78a40 | 10738 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-LE"); |
b250498f | 10739 | #endif |
01ec43d0 GS |
10740 | } |
10741 | break; | |
78ae23f5 | 10742 | case 0xFE: |
92a78a40 | 10743 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 10744 | #ifndef PERL_NO_UTF16_FILTER |
92a78a40 | 10745 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b | 10746 | s += 2; |
92a78a40 | 10747 | utf16be: |
dea0fc0b JH |
10748 | if (PL_bufend > (char *)s) { |
10749 | U8 *news; | |
10750 | I32 newlen; | |
10751 | ||
10752 | filter_add(utf16_textfilter, NULL); | |
10753 | New(898, news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); | |
6dc97886 NC |
10754 | utf16_to_utf8(s, news, |
10755 | PL_bufend - (char*)s, | |
10756 | &newlen); | |
92a78a40 | 10757 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
dea0fc0b | 10758 | Safefree(news); |
92a78a40 JH |
10759 | SvUTF8_on(PL_linestr); |
10760 | s = (U8*)SvPVX(PL_linestr); | |
10761 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
dea0fc0b | 10762 | } |
b250498f | 10763 | #else |
92a78a40 | 10764 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-BE"); |
b250498f | 10765 | #endif |
01ec43d0 GS |
10766 | } |
10767 | break; | |
3ae08724 GS |
10768 | case 0xEF: |
10769 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
92a78a40 | 10770 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
10771 | s += 3; /* UTF-8 */ |
10772 | } | |
10773 | break; | |
10774 | case 0: | |
92a78a40 JH |
10775 | if (slen > 3) { |
10776 | if (s[1] == 0) { | |
10777 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
10778 | /* UTF-32 big-endian */ | |
10779 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-BE"); | |
10780 | } | |
10781 | } | |
10782 | else if (s[2] == 0 && s[3] != 0) { | |
10783 | /* Leading bytes | |
10784 | * 00 xx 00 xx | |
10785 | * are a good indicator of UTF-16BE. */ | |
10786 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); | |
10787 | goto utf16be; | |
10788 | } | |
01ec43d0 | 10789 | } |
92a78a40 JH |
10790 | default: |
10791 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
10792 | /* Leading bytes | |
10793 | * xx 00 xx 00 | |
10794 | * are a good indicator of UTF-16LE. */ | |
10795 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); | |
10796 | goto utf16le; | |
10797 | } | |
01ec43d0 | 10798 | } |
b8f84bb2 | 10799 | return (char*)s; |
b250498f | 10800 | } |
4755096e | 10801 | |
4755096e GS |
10802 | /* |
10803 | * restore_rsfp | |
10804 | * Restore a source filter. | |
10805 | */ | |
10806 | ||
10807 | static void | |
acfe0abc | 10808 | restore_rsfp(pTHX_ void *f) |
4755096e GS |
10809 | { |
10810 | PerlIO *fp = (PerlIO*)f; | |
10811 | ||
10812 | if (PL_rsfp == PerlIO_stdin()) | |
10813 | PerlIO_clearerr(PL_rsfp); | |
10814 | else if (PL_rsfp && (PL_rsfp != fp)) | |
10815 | PerlIO_close(PL_rsfp); | |
10816 | PL_rsfp = fp; | |
10817 | } | |
6e3aabd6 GS |
10818 | |
10819 | #ifndef PERL_NO_UTF16_FILTER | |
10820 | static I32 | |
acfe0abc | 10821 | utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 10822 | { |
24c2fff4 NC |
10823 | const STRLEN old = SvCUR(sv); |
10824 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
6dc97886 NC |
10825 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
10826 | "utf16_textfilter(%p): %d %d (%d)\n", | |
6155262a | 10827 | utf16_textfilter, idx, maxlen, (int) count)); |
6e3aabd6 GS |
10828 | if (count) { |
10829 | U8* tmps; | |
dea0fc0b | 10830 | I32 newlen; |
6e3aabd6 | 10831 | New(898, tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
5e7e76a3 SP |
10832 | Copy(SvPVX_const(sv), tmps, old, char); |
10833 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
6dc97886 NC |
10834 | SvCUR(sv) - old, &newlen); |
10835 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 10836 | } |
6dc97886 NC |
10837 | DEBUG_P({sv_dump(sv);}); |
10838 | return SvCUR(sv); | |
6e3aabd6 GS |
10839 | } |
10840 | ||
10841 | static I32 | |
acfe0abc | 10842 | utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 10843 | { |
24c2fff4 NC |
10844 | const STRLEN old = SvCUR(sv); |
10845 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
6dc97886 NC |
10846 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
10847 | "utf16rev_textfilter(%p): %d %d (%d)\n", | |
6155262a | 10848 | utf16rev_textfilter, idx, maxlen, (int) count)); |
6e3aabd6 GS |
10849 | if (count) { |
10850 | U8* tmps; | |
dea0fc0b | 10851 | I32 newlen; |
6e3aabd6 | 10852 | New(898, tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
5e7e76a3 SP |
10853 | Copy(SvPVX_const(sv), tmps, old, char); |
10854 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
6dc97886 NC |
10855 | SvCUR(sv) - old, &newlen); |
10856 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 10857 | } |
6dc97886 | 10858 | DEBUG_P({ sv_dump(sv); }); |
6e3aabd6 GS |
10859 | return count; |
10860 | } | |
10861 | #endif | |
9f4817db | 10862 | |
faa4807d JP |
10863 | /* |
10864 | Returns a pointer to the next character after the parsed | |
10865 | vstring, as well as updating the passed in sv. | |
10866 | ||
10867 | Function must be called like | |
10868 | ||
10869 | sv = NEWSV(92,5); | |
10870 | s = scan_vstring(s,sv); | |
10871 | ||
10872 | The sv should already be large enough to store the vstring | |
10873 | passed in, for performance reasons. | |
10874 | ||
10875 | */ | |
10876 | ||
10877 | char * | |
10878 | Perl_scan_vstring(pTHX_ char *s, SV *sv) | |
10879 | { | |
a00f3e00 AL |
10880 | const char *pos = s; |
10881 | const char *start = s; | |
37cd0abf | 10882 | if (*pos == 'v') pos++; /* get past 'v' */ |
bd4d542e JH |
10883 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
10884 | pos++; | |
faa4807d JP |
10885 | if ( *pos != '.') { |
10886 | /* this may not be a v-string if followed by => */ | |
a00f3e00 | 10887 | const char *next = pos; |
ac388100 JH |
10888 | while (next < PL_bufend && isSPACE(*next)) |
10889 | ++next; | |
10890 | if ((PL_bufend - next) >= 2 && *next == '=' && next[1] == '>' ) { | |
faa4807d JP |
10891 | /* return string not v-string */ |
10892 | sv_setpvn(sv,(char *)s,pos-s); | |
e2b56717 | 10893 | return (char *)pos; |
faa4807d JP |
10894 | } |
10895 | } | |
10896 | ||
10897 | if (!isALPHA(*pos)) { | |
10898 | UV rev; | |
a2a469f9 | 10899 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
faa4807d JP |
10900 | U8 *tmpend; |
10901 | ||
10902 | if (*s == 'v') s++; /* get past 'v' */ | |
10903 | ||
10904 | sv_setpvn(sv, "", 0); | |
10905 | ||
10906 | for (;;) { | |
10907 | rev = 0; | |
10908 | { | |
10909 | /* this is atoi() that tolerates underscores */ | |
a00f3e00 | 10910 | const char *end = pos; |
faa4807d JP |
10911 | UV mult = 1; |
10912 | while (--end >= s) { | |
10913 | UV orev; | |
10914 | if (*end == '_') | |
10915 | continue; | |
10916 | orev = rev; | |
10917 | rev += (*end - '0') * mult; | |
10918 | mult *= 10; | |
10919 | if (orev > rev && ckWARN_d(WARN_OVERFLOW)) | |
10920 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), | |
10921 | "Integer overflow in decimal number"); | |
10922 | } | |
10923 | } | |
10924 | #ifdef EBCDIC | |
10925 | if (rev > 0x7FFFFFFF) | |
10926 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
10927 | #endif | |
10928 | /* Append native character for the rev point */ | |
10929 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
10930 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
10931 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
10932 | SvUTF8_on(sv); | |
bd4d542e | 10933 | if (pos + 1 < PL_bufend && *pos == '.' && isDIGIT(pos[1])) |
faa4807d JP |
10934 | s = ++pos; |
10935 | else { | |
10936 | s = pos; | |
10937 | break; | |
10938 | } | |
bd4d542e | 10939 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
faa4807d JP |
10940 | pos++; |
10941 | } | |
10942 | SvPOK_on(sv); | |
10943 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
10944 | SvRMAGICAL_on(sv); | |
10945 | } | |
e2b56717 | 10946 | return (char *)s; |
faa4807d JP |
10947 | } |
10948 | ||
ea5389ca NC |
10949 | /* |
10950 | * Local variables: | |
10951 | * c-indentation-style: bsd | |
10952 | * c-basic-offset: 4 | |
10953 | * indent-tabs-mode: t | |
10954 | * End: | |
10955 | * | |
d8294a4d NC |
10956 | * ex: set ts=8 sts=4 sw=4 noet: |
10957 | */ |