Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* toke.c |
a687059c | 2 | * |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
b94e2f88 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others |
a687059c | 5 | * |
d48672a2 LW |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. | |
378cc40b | 8 | * |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
12 | * "It all comes from here, the stench and the peril." --Frodo | |
378cc40b LW |
13 | */ |
14 | ||
9cbb5ea2 GS |
15 | /* |
16 | * This file is the lexer for Perl. It's closely linked to the | |
4e553d73 | 17 | * parser, perly.y. |
ffb4593c NT |
18 | * |
19 | * The main routine is yylex(), which returns the next token. | |
20 | */ | |
21 | ||
378cc40b | 22 | #include "EXTERN.h" |
864dbfa3 | 23 | #define PERL_IN_TOKE_C |
378cc40b | 24 | #include "perl.h" |
378cc40b | 25 | |
12fbd33b DM |
26 | #define yychar (*PL_yycharp) |
27 | #define yylval (*PL_yylvalp) | |
d3b6f988 | 28 | |
0bd48802 | 29 | static const char ident_too_long[] = "Identifier too long"; |
c445ea15 | 30 | static const char commaless_variable_list[] = "comma-less variable list"; |
8903cb82 | 31 | |
acfe0abc | 32 | static void restore_rsfp(pTHX_ void *f); |
6e3aabd6 | 33 | #ifndef PERL_NO_UTF16_FILTER |
acfe0abc GS |
34 | static I32 utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen); |
35 | static I32 utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen); | |
6e3aabd6 | 36 | #endif |
51371543 | 37 | |
29595ff2 | 38 | #ifdef PERL_MAD |
29595ff2 | 39 | # define CURMAD(slot,sv) if (PL_madskills) { curmad(slot,sv); sv = 0; } |
cd81e915 | 40 | # define NEXTVAL_NEXTTOKE PL_nexttoke[PL_curforce].next_val |
9ded7720 | 41 | #else |
5db06880 | 42 | # define CURMAD(slot,sv) |
9ded7720 | 43 | # define NEXTVAL_NEXTTOKE PL_nextval[PL_nexttoke] |
29595ff2 NC |
44 | #endif |
45 | ||
9059aa12 LW |
46 | #define XFAKEBRACK 128 |
47 | #define XENUMMASK 127 | |
48 | ||
39e02b42 JH |
49 | #ifdef USE_UTF8_SCRIPTS |
50 | # define UTF (!IN_BYTES) | |
2b9d42f0 | 51 | #else |
746b446a | 52 | # define UTF ((PL_linestr && DO_UTF8(PL_linestr)) || (PL_hints & HINT_UTF8)) |
2b9d42f0 | 53 | #endif |
a0ed51b3 | 54 | |
61f0cdd9 | 55 | /* In variables named $^X, these are the legal values for X. |
2b92dfce GS |
56 | * 1999-02-27 mjd-perl-patch@plover.com */ |
57 | #define isCONTROLVAR(x) (isUPPER(x) || strchr("[\\]^_?", (x))) | |
58 | ||
bf4acbe4 GS |
59 | /* On MacOS, respect nonbreaking spaces */ |
60 | #ifdef MACOS_TRADITIONAL | |
61 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\312'||(c)=='\t') | |
62 | #else | |
63 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\t') | |
64 | #endif | |
65 | ||
ffb4593c NT |
66 | /* LEX_* are values for PL_lex_state, the state of the lexer. |
67 | * They are arranged oddly so that the guard on the switch statement | |
79072805 LW |
68 | * can get by with a single comparison (if the compiler is smart enough). |
69 | */ | |
70 | ||
fb73857a | 71 | /* #define LEX_NOTPARSING 11 is done in perl.h. */ |
72 | ||
b6007c36 DM |
73 | #define LEX_NORMAL 10 /* normal code (ie not within "...") */ |
74 | #define LEX_INTERPNORMAL 9 /* code within a string, eg "$foo[$x+1]" */ | |
75 | #define LEX_INTERPCASEMOD 8 /* expecting a \U, \Q or \E etc */ | |
76 | #define LEX_INTERPPUSH 7 /* starting a new sublex parse level */ | |
77 | #define LEX_INTERPSTART 6 /* expecting the start of a $var */ | |
78 | ||
79 | /* at end of code, eg "$x" followed by: */ | |
80 | #define LEX_INTERPEND 5 /* ... eg not one of [, { or -> */ | |
81 | #define LEX_INTERPENDMAYBE 4 /* ... eg one of [, { or -> */ | |
82 | ||
83 | #define LEX_INTERPCONCAT 3 /* expecting anything, eg at start of | |
84 | string or after \E, $foo, etc */ | |
85 | #define LEX_INTERPCONST 2 /* NOT USED */ | |
86 | #define LEX_FORMLINE 1 /* expecting a format line */ | |
87 | #define LEX_KNOWNEXT 0 /* next token known; just return it */ | |
88 | ||
79072805 | 89 | |
bbf60fe6 | 90 | #ifdef DEBUGGING |
27da23d5 | 91 | static const char* const lex_state_names[] = { |
bbf60fe6 DM |
92 | "KNOWNEXT", |
93 | "FORMLINE", | |
94 | "INTERPCONST", | |
95 | "INTERPCONCAT", | |
96 | "INTERPENDMAYBE", | |
97 | "INTERPEND", | |
98 | "INTERPSTART", | |
99 | "INTERPPUSH", | |
100 | "INTERPCASEMOD", | |
101 | "INTERPNORMAL", | |
102 | "NORMAL" | |
103 | }; | |
104 | #endif | |
105 | ||
79072805 LW |
106 | #ifdef ff_next |
107 | #undef ff_next | |
d48672a2 LW |
108 | #endif |
109 | ||
79072805 | 110 | #include "keywords.h" |
fe14fcc3 | 111 | |
ffb4593c NT |
112 | /* CLINE is a macro that ensures PL_copline has a sane value */ |
113 | ||
ae986130 LW |
114 | #ifdef CLINE |
115 | #undef CLINE | |
116 | #endif | |
57843af0 | 117 | #define CLINE (PL_copline = (CopLINE(PL_curcop) < PL_copline ? CopLINE(PL_curcop) : PL_copline)) |
3280af22 | 118 | |
5db06880 | 119 | #ifdef PERL_MAD |
29595ff2 NC |
120 | # define SKIPSPACE0(s) skipspace0(s) |
121 | # define SKIPSPACE1(s) skipspace1(s) | |
122 | # define SKIPSPACE2(s,tsv) skipspace2(s,&tsv) | |
123 | # define PEEKSPACE(s) skipspace2(s,0) | |
124 | #else | |
125 | # define SKIPSPACE0(s) skipspace(s) | |
126 | # define SKIPSPACE1(s) skipspace(s) | |
127 | # define SKIPSPACE2(s,tsv) skipspace(s) | |
128 | # define PEEKSPACE(s) skipspace(s) | |
129 | #endif | |
130 | ||
ffb4593c NT |
131 | /* |
132 | * Convenience functions to return different tokens and prime the | |
9cbb5ea2 | 133 | * lexer for the next token. They all take an argument. |
ffb4593c NT |
134 | * |
135 | * TOKEN : generic token (used for '(', DOLSHARP, etc) | |
136 | * OPERATOR : generic operator | |
137 | * AOPERATOR : assignment operator | |
138 | * PREBLOCK : beginning the block after an if, while, foreach, ... | |
139 | * PRETERMBLOCK : beginning a non-code-defining {} block (eg, hash ref) | |
140 | * PREREF : *EXPR where EXPR is not a simple identifier | |
141 | * TERM : expression term | |
142 | * LOOPX : loop exiting command (goto, last, dump, etc) | |
143 | * FTST : file test operator | |
144 | * FUN0 : zero-argument function | |
2d2e263d | 145 | * FUN1 : not used, except for not, which isn't a UNIOP |
ffb4593c NT |
146 | * BOop : bitwise or or xor |
147 | * BAop : bitwise and | |
148 | * SHop : shift operator | |
149 | * PWop : power operator | |
9cbb5ea2 | 150 | * PMop : pattern-matching operator |
ffb4593c NT |
151 | * Aop : addition-level operator |
152 | * Mop : multiplication-level operator | |
153 | * Eop : equality-testing operator | |
e5edeb50 | 154 | * Rop : relational operator <= != gt |
ffb4593c NT |
155 | * |
156 | * Also see LOP and lop() below. | |
157 | */ | |
158 | ||
998054bd | 159 | #ifdef DEBUGGING /* Serve -DT. */ |
f5bd084c | 160 | # define REPORT(retval) tokereport((I32)retval) |
998054bd | 161 | #else |
bbf60fe6 | 162 | # define REPORT(retval) (retval) |
998054bd SC |
163 | #endif |
164 | ||
bbf60fe6 DM |
165 | #define TOKEN(retval) return ( PL_bufptr = s, REPORT(retval)) |
166 | #define OPERATOR(retval) return (PL_expect = XTERM, PL_bufptr = s, REPORT(retval)) | |
167 | #define AOPERATOR(retval) return ao((PL_expect = XTERM, PL_bufptr = s, REPORT(retval))) | |
168 | #define PREBLOCK(retval) return (PL_expect = XBLOCK,PL_bufptr = s, REPORT(retval)) | |
169 | #define PRETERMBLOCK(retval) return (PL_expect = XTERMBLOCK,PL_bufptr = s, REPORT(retval)) | |
170 | #define PREREF(retval) return (PL_expect = XREF,PL_bufptr = s, REPORT(retval)) | |
171 | #define TERM(retval) return (CLINE, PL_expect = XOPERATOR, PL_bufptr = s, REPORT(retval)) | |
172 | #define LOOPX(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)LOOPEX)) | |
173 | #define FTST(f) return (yylval.ival=f, PL_expect=XTERMORDORDOR, PL_bufptr=s, REPORT((int)UNIOP)) | |
174 | #define FUN0(f) return (yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC0)) | |
175 | #define FUN1(f) return (yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC1)) | |
176 | #define BOop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITOROP))) | |
177 | #define BAop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITANDOP))) | |
178 | #define SHop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)SHIFTOP))) | |
179 | #define PWop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)POWOP))) | |
180 | #define PMop(f) return(yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MATCHOP)) | |
181 | #define Aop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)ADDOP))) | |
182 | #define Mop(f) return ao((yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MULOP))) | |
183 | #define Eop(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)EQOP)) | |
184 | #define Rop(f) return (yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)RELOP)) | |
2f3197b3 | 185 | |
a687059c LW |
186 | /* This bit of chicanery makes a unary function followed by |
187 | * a parenthesis into a function with one argument, highest precedence. | |
6f33ba73 RGS |
188 | * The UNIDOR macro is for unary functions that can be followed by the // |
189 | * operator (such as C<shift // 0>). | |
a687059c | 190 | */ |
376fcdbf AL |
191 | #define UNI2(f,x) { \ |
192 | yylval.ival = f; \ | |
193 | PL_expect = x; \ | |
194 | PL_bufptr = s; \ | |
195 | PL_last_uni = PL_oldbufptr; \ | |
196 | PL_last_lop_op = f; \ | |
197 | if (*s == '(') \ | |
198 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 199 | s = PEEKSPACE(s); \ |
376fcdbf AL |
200 | return REPORT( *s=='(' ? (int)FUNC1 : (int)UNIOP ); \ |
201 | } | |
6f33ba73 RGS |
202 | #define UNI(f) UNI2(f,XTERM) |
203 | #define UNIDOR(f) UNI2(f,XTERMORDORDOR) | |
a687059c | 204 | |
376fcdbf AL |
205 | #define UNIBRACK(f) { \ |
206 | yylval.ival = f; \ | |
207 | PL_bufptr = s; \ | |
208 | PL_last_uni = PL_oldbufptr; \ | |
209 | if (*s == '(') \ | |
210 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 211 | s = PEEKSPACE(s); \ |
376fcdbf AL |
212 | return REPORT( (*s == '(') ? (int)FUNC1 : (int)UNIOP ); \ |
213 | } | |
79072805 | 214 | |
9f68db38 | 215 | /* grandfather return to old style */ |
3280af22 | 216 | #define OLDLOP(f) return(yylval.ival=f,PL_expect = XTERM,PL_bufptr = s,(int)LSTOP) |
79072805 | 217 | |
8fa7f367 JH |
218 | #ifdef DEBUGGING |
219 | ||
bbf60fe6 DM |
220 | /* how to interpret the yylval associated with the token */ |
221 | enum token_type { | |
222 | TOKENTYPE_NONE, | |
223 | TOKENTYPE_IVAL, | |
224 | TOKENTYPE_OPNUM, /* yylval.ival contains an opcode number */ | |
225 | TOKENTYPE_PVAL, | |
226 | TOKENTYPE_OPVAL, | |
227 | TOKENTYPE_GVVAL | |
228 | }; | |
229 | ||
6d4a66ac NC |
230 | static struct debug_tokens { |
231 | const int token; | |
232 | enum token_type type; | |
233 | const char *name; | |
234 | } const debug_tokens[] = | |
9041c2e3 | 235 | { |
bbf60fe6 DM |
236 | { ADDOP, TOKENTYPE_OPNUM, "ADDOP" }, |
237 | { ANDAND, TOKENTYPE_NONE, "ANDAND" }, | |
238 | { ANDOP, TOKENTYPE_NONE, "ANDOP" }, | |
239 | { ANONSUB, TOKENTYPE_IVAL, "ANONSUB" }, | |
240 | { ARROW, TOKENTYPE_NONE, "ARROW" }, | |
241 | { ASSIGNOP, TOKENTYPE_OPNUM, "ASSIGNOP" }, | |
242 | { BITANDOP, TOKENTYPE_OPNUM, "BITANDOP" }, | |
243 | { BITOROP, TOKENTYPE_OPNUM, "BITOROP" }, | |
244 | { COLONATTR, TOKENTYPE_NONE, "COLONATTR" }, | |
245 | { CONTINUE, TOKENTYPE_NONE, "CONTINUE" }, | |
0d863452 | 246 | { DEFAULT, TOKENTYPE_NONE, "DEFAULT" }, |
bbf60fe6 DM |
247 | { DO, TOKENTYPE_NONE, "DO" }, |
248 | { DOLSHARP, TOKENTYPE_NONE, "DOLSHARP" }, | |
249 | { DORDOR, TOKENTYPE_NONE, "DORDOR" }, | |
250 | { DOROP, TOKENTYPE_OPNUM, "DOROP" }, | |
251 | { DOTDOT, TOKENTYPE_IVAL, "DOTDOT" }, | |
252 | { ELSE, TOKENTYPE_NONE, "ELSE" }, | |
253 | { ELSIF, TOKENTYPE_IVAL, "ELSIF" }, | |
254 | { EQOP, TOKENTYPE_OPNUM, "EQOP" }, | |
255 | { FOR, TOKENTYPE_IVAL, "FOR" }, | |
256 | { FORMAT, TOKENTYPE_NONE, "FORMAT" }, | |
257 | { FUNC, TOKENTYPE_OPNUM, "FUNC" }, | |
258 | { FUNC0, TOKENTYPE_OPNUM, "FUNC0" }, | |
259 | { FUNC0SUB, TOKENTYPE_OPVAL, "FUNC0SUB" }, | |
260 | { FUNC1, TOKENTYPE_OPNUM, "FUNC1" }, | |
261 | { FUNCMETH, TOKENTYPE_OPVAL, "FUNCMETH" }, | |
0d863452 | 262 | { GIVEN, TOKENTYPE_IVAL, "GIVEN" }, |
bbf60fe6 DM |
263 | { HASHBRACK, TOKENTYPE_NONE, "HASHBRACK" }, |
264 | { IF, TOKENTYPE_IVAL, "IF" }, | |
265 | { LABEL, TOKENTYPE_PVAL, "LABEL" }, | |
266 | { LOCAL, TOKENTYPE_IVAL, "LOCAL" }, | |
267 | { LOOPEX, TOKENTYPE_OPNUM, "LOOPEX" }, | |
268 | { LSTOP, TOKENTYPE_OPNUM, "LSTOP" }, | |
269 | { LSTOPSUB, TOKENTYPE_OPVAL, "LSTOPSUB" }, | |
270 | { MATCHOP, TOKENTYPE_OPNUM, "MATCHOP" }, | |
271 | { METHOD, TOKENTYPE_OPVAL, "METHOD" }, | |
272 | { MULOP, TOKENTYPE_OPNUM, "MULOP" }, | |
273 | { MY, TOKENTYPE_IVAL, "MY" }, | |
274 | { MYSUB, TOKENTYPE_NONE, "MYSUB" }, | |
275 | { NOAMP, TOKENTYPE_NONE, "NOAMP" }, | |
276 | { NOTOP, TOKENTYPE_NONE, "NOTOP" }, | |
277 | { OROP, TOKENTYPE_IVAL, "OROP" }, | |
278 | { OROR, TOKENTYPE_NONE, "OROR" }, | |
279 | { PACKAGE, TOKENTYPE_NONE, "PACKAGE" }, | |
280 | { PMFUNC, TOKENTYPE_OPVAL, "PMFUNC" }, | |
281 | { POSTDEC, TOKENTYPE_NONE, "POSTDEC" }, | |
282 | { POSTINC, TOKENTYPE_NONE, "POSTINC" }, | |
283 | { POWOP, TOKENTYPE_OPNUM, "POWOP" }, | |
284 | { PREDEC, TOKENTYPE_NONE, "PREDEC" }, | |
285 | { PREINC, TOKENTYPE_NONE, "PREINC" }, | |
286 | { PRIVATEREF, TOKENTYPE_OPVAL, "PRIVATEREF" }, | |
287 | { REFGEN, TOKENTYPE_NONE, "REFGEN" }, | |
288 | { RELOP, TOKENTYPE_OPNUM, "RELOP" }, | |
289 | { SHIFTOP, TOKENTYPE_OPNUM, "SHIFTOP" }, | |
290 | { SUB, TOKENTYPE_NONE, "SUB" }, | |
291 | { THING, TOKENTYPE_OPVAL, "THING" }, | |
292 | { UMINUS, TOKENTYPE_NONE, "UMINUS" }, | |
293 | { UNIOP, TOKENTYPE_OPNUM, "UNIOP" }, | |
294 | { UNIOPSUB, TOKENTYPE_OPVAL, "UNIOPSUB" }, | |
295 | { UNLESS, TOKENTYPE_IVAL, "UNLESS" }, | |
296 | { UNTIL, TOKENTYPE_IVAL, "UNTIL" }, | |
297 | { USE, TOKENTYPE_IVAL, "USE" }, | |
0d863452 | 298 | { WHEN, TOKENTYPE_IVAL, "WHEN" }, |
bbf60fe6 DM |
299 | { WHILE, TOKENTYPE_IVAL, "WHILE" }, |
300 | { WORD, TOKENTYPE_OPVAL, "WORD" }, | |
c35e046a | 301 | { 0, TOKENTYPE_NONE, NULL } |
bbf60fe6 DM |
302 | }; |
303 | ||
304 | /* dump the returned token in rv, plus any optional arg in yylval */ | |
998054bd | 305 | |
bbf60fe6 | 306 | STATIC int |
f5bd084c | 307 | S_tokereport(pTHX_ I32 rv) |
bbf60fe6 | 308 | { |
97aff369 | 309 | dVAR; |
bbf60fe6 | 310 | if (DEBUG_T_TEST) { |
bd61b366 | 311 | const char *name = NULL; |
bbf60fe6 | 312 | enum token_type type = TOKENTYPE_NONE; |
f54cb97a | 313 | const struct debug_tokens *p; |
396482e1 | 314 | SV* const report = newSVpvs("<== "); |
bbf60fe6 | 315 | |
f54cb97a | 316 | for (p = debug_tokens; p->token; p++) { |
bbf60fe6 DM |
317 | if (p->token == (int)rv) { |
318 | name = p->name; | |
319 | type = p->type; | |
320 | break; | |
321 | } | |
322 | } | |
323 | if (name) | |
54667de8 | 324 | Perl_sv_catpv(aTHX_ report, name); |
bbf60fe6 DM |
325 | else if ((char)rv > ' ' && (char)rv < '~') |
326 | Perl_sv_catpvf(aTHX_ report, "'%c'", (char)rv); | |
327 | else if (!rv) | |
396482e1 | 328 | sv_catpvs(report, "EOF"); |
bbf60fe6 DM |
329 | else |
330 | Perl_sv_catpvf(aTHX_ report, "?? %"IVdf, (IV)rv); | |
331 | switch (type) { | |
332 | case TOKENTYPE_NONE: | |
333 | case TOKENTYPE_GVVAL: /* doesn't appear to be used */ | |
334 | break; | |
335 | case TOKENTYPE_IVAL: | |
e4584336 | 336 | Perl_sv_catpvf(aTHX_ report, "(ival=%"IVdf")", (IV)yylval.ival); |
bbf60fe6 DM |
337 | break; |
338 | case TOKENTYPE_OPNUM: | |
339 | Perl_sv_catpvf(aTHX_ report, "(ival=op_%s)", | |
340 | PL_op_name[yylval.ival]); | |
341 | break; | |
342 | case TOKENTYPE_PVAL: | |
343 | Perl_sv_catpvf(aTHX_ report, "(pval=\"%s\")", yylval.pval); | |
344 | break; | |
345 | case TOKENTYPE_OPVAL: | |
b6007c36 | 346 | if (yylval.opval) { |
401441c0 | 347 | Perl_sv_catpvf(aTHX_ report, "(opval=op_%s)", |
bbf60fe6 | 348 | PL_op_name[yylval.opval->op_type]); |
b6007c36 DM |
349 | if (yylval.opval->op_type == OP_CONST) { |
350 | Perl_sv_catpvf(aTHX_ report, " %s", | |
351 | SvPEEK(cSVOPx_sv(yylval.opval))); | |
352 | } | |
353 | ||
354 | } | |
401441c0 | 355 | else |
396482e1 | 356 | sv_catpvs(report, "(opval=null)"); |
bbf60fe6 DM |
357 | break; |
358 | } | |
b6007c36 | 359 | PerlIO_printf(Perl_debug_log, "### %s\n\n", SvPV_nolen_const(report)); |
bbf60fe6 DM |
360 | }; |
361 | return (int)rv; | |
998054bd SC |
362 | } |
363 | ||
b6007c36 DM |
364 | |
365 | /* print the buffer with suitable escapes */ | |
366 | ||
367 | STATIC void | |
368 | S_printbuf(pTHX_ const char* fmt, const char* s) | |
369 | { | |
396482e1 | 370 | SV* const tmp = newSVpvs(""); |
b6007c36 DM |
371 | PerlIO_printf(Perl_debug_log, fmt, pv_display(tmp, s, strlen(s), 0, 60)); |
372 | SvREFCNT_dec(tmp); | |
373 | } | |
374 | ||
8fa7f367 JH |
375 | #endif |
376 | ||
ffb4593c NT |
377 | /* |
378 | * S_ao | |
379 | * | |
c963b151 BD |
380 | * This subroutine detects &&=, ||=, and //= and turns an ANDAND, OROR or DORDOR |
381 | * into an OP_ANDASSIGN, OP_ORASSIGN, or OP_DORASSIGN | |
ffb4593c NT |
382 | */ |
383 | ||
76e3520e | 384 | STATIC int |
cea2e8a9 | 385 | S_ao(pTHX_ int toketype) |
a0d0e21e | 386 | { |
97aff369 | 387 | dVAR; |
3280af22 NIS |
388 | if (*PL_bufptr == '=') { |
389 | PL_bufptr++; | |
a0d0e21e LW |
390 | if (toketype == ANDAND) |
391 | yylval.ival = OP_ANDASSIGN; | |
392 | else if (toketype == OROR) | |
393 | yylval.ival = OP_ORASSIGN; | |
c963b151 BD |
394 | else if (toketype == DORDOR) |
395 | yylval.ival = OP_DORASSIGN; | |
a0d0e21e LW |
396 | toketype = ASSIGNOP; |
397 | } | |
398 | return toketype; | |
399 | } | |
400 | ||
ffb4593c NT |
401 | /* |
402 | * S_no_op | |
403 | * When Perl expects an operator and finds something else, no_op | |
404 | * prints the warning. It always prints "<something> found where | |
405 | * operator expected. It prints "Missing semicolon on previous line?" | |
406 | * if the surprise occurs at the start of the line. "do you need to | |
407 | * predeclare ..." is printed out for code like "sub bar; foo bar $x" | |
408 | * where the compiler doesn't know if foo is a method call or a function. | |
409 | * It prints "Missing operator before end of line" if there's nothing | |
410 | * after the missing operator, or "... before <...>" if there is something | |
411 | * after the missing operator. | |
412 | */ | |
413 | ||
76e3520e | 414 | STATIC void |
bfed75c6 | 415 | S_no_op(pTHX_ const char *what, char *s) |
463ee0b2 | 416 | { |
97aff369 | 417 | dVAR; |
9d4ba2ae AL |
418 | char * const oldbp = PL_bufptr; |
419 | const bool is_first = (PL_oldbufptr == PL_linestart); | |
68dc0745 | 420 | |
1189a94a GS |
421 | if (!s) |
422 | s = oldbp; | |
07c798fb | 423 | else |
1189a94a | 424 | PL_bufptr = s; |
cea2e8a9 | 425 | yywarn(Perl_form(aTHX_ "%s found where operator expected", what)); |
56da5a46 RGS |
426 | if (ckWARN_d(WARN_SYNTAX)) { |
427 | if (is_first) | |
428 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
429 | "\t(Missing semicolon on previous line?)\n"); | |
430 | else if (PL_oldoldbufptr && isIDFIRST_lazy_if(PL_oldoldbufptr,UTF)) { | |
f54cb97a | 431 | const char *t; |
c35e046a AL |
432 | for (t = PL_oldoldbufptr; (isALNUM_lazy_if(t,UTF) || *t == ':'); t++) |
433 | NOOP; | |
56da5a46 RGS |
434 | if (t < PL_bufptr && isSPACE(*t)) |
435 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
436 | "\t(Do you need to predeclare %.*s?)\n", | |
551405c4 | 437 | (int)(t - PL_oldoldbufptr), PL_oldoldbufptr); |
56da5a46 RGS |
438 | } |
439 | else { | |
440 | assert(s >= oldbp); | |
441 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
551405c4 | 442 | "\t(Missing operator before %.*s?)\n", (int)(s - oldbp), oldbp); |
56da5a46 | 443 | } |
07c798fb | 444 | } |
3280af22 | 445 | PL_bufptr = oldbp; |
8990e307 LW |
446 | } |
447 | ||
ffb4593c NT |
448 | /* |
449 | * S_missingterm | |
450 | * Complain about missing quote/regexp/heredoc terminator. | |
d4c19fe8 | 451 | * If it's called with NULL then it cauterizes the line buffer. |
ffb4593c NT |
452 | * If we're in a delimited string and the delimiter is a control |
453 | * character, it's reformatted into a two-char sequence like ^C. | |
454 | * This is fatal. | |
455 | */ | |
456 | ||
76e3520e | 457 | STATIC void |
cea2e8a9 | 458 | S_missingterm(pTHX_ char *s) |
8990e307 | 459 | { |
97aff369 | 460 | dVAR; |
8990e307 LW |
461 | char tmpbuf[3]; |
462 | char q; | |
463 | if (s) { | |
9d4ba2ae | 464 | char * const nl = strrchr(s,'\n'); |
d2719217 | 465 | if (nl) |
8990e307 LW |
466 | *nl = '\0'; |
467 | } | |
9d116dd7 JH |
468 | else if ( |
469 | #ifdef EBCDIC | |
470 | iscntrl(PL_multi_close) | |
471 | #else | |
472 | PL_multi_close < 32 || PL_multi_close == 127 | |
473 | #endif | |
474 | ) { | |
8990e307 | 475 | *tmpbuf = '^'; |
585ec06d | 476 | tmpbuf[1] = (char)toCTRL(PL_multi_close); |
8990e307 LW |
477 | tmpbuf[2] = '\0'; |
478 | s = tmpbuf; | |
479 | } | |
480 | else { | |
eb160463 | 481 | *tmpbuf = (char)PL_multi_close; |
8990e307 LW |
482 | tmpbuf[1] = '\0'; |
483 | s = tmpbuf; | |
484 | } | |
485 | q = strchr(s,'"') ? '\'' : '"'; | |
cea2e8a9 | 486 | Perl_croak(aTHX_ "Can't find string terminator %c%s%c anywhere before EOF",q,s,q); |
463ee0b2 | 487 | } |
79072805 | 488 | |
ef89dcc3 | 489 | #define FEATURE_IS_ENABLED(name) \ |
0d863452 | 490 | ((0 != (PL_hints & HINT_LOCALIZE_HH)) \ |
89529cee | 491 | && S_feature_is_enabled(aTHX_ STR_WITH_LEN(name))) |
0d863452 RH |
492 | /* |
493 | * S_feature_is_enabled | |
494 | * Check whether the named feature is enabled. | |
495 | */ | |
496 | STATIC bool | |
d4c19fe8 | 497 | S_feature_is_enabled(pTHX_ const char *name, STRLEN namelen) |
0d863452 | 498 | { |
97aff369 | 499 | dVAR; |
0d863452 | 500 | HV * const hinthv = GvHV(PL_hintgv); |
7b9ef140 | 501 | char he_name[32] = "feature_"; |
6fca0082 | 502 | (void) my_strlcpy(&he_name[8], name, 24); |
d4c19fe8 | 503 | |
7b9ef140 | 504 | return (hinthv && hv_exists(hinthv, he_name, 8 + namelen)); |
0d863452 RH |
505 | } |
506 | ||
ffb4593c NT |
507 | /* |
508 | * Perl_deprecate | |
ffb4593c NT |
509 | */ |
510 | ||
79072805 | 511 | void |
bfed75c6 | 512 | Perl_deprecate(pTHX_ const char *s) |
a0d0e21e | 513 | { |
599cee73 | 514 | if (ckWARN(WARN_DEPRECATED)) |
9014280d | 515 | Perl_warner(aTHX_ packWARN(WARN_DEPRECATED), "Use of %s is deprecated", s); |
a0d0e21e LW |
516 | } |
517 | ||
12bcd1a6 | 518 | void |
bfed75c6 | 519 | Perl_deprecate_old(pTHX_ const char *s) |
12bcd1a6 PM |
520 | { |
521 | /* This function should NOT be called for any new deprecated warnings */ | |
522 | /* Use Perl_deprecate instead */ | |
523 | /* */ | |
524 | /* It is here to maintain backward compatibility with the pre-5.8 */ | |
525 | /* warnings category hierarchy. The "deprecated" category used to */ | |
526 | /* live under the "syntax" category. It is now a top-level category */ | |
527 | /* in its own right. */ | |
528 | ||
529 | if (ckWARN2(WARN_DEPRECATED, WARN_SYNTAX)) | |
bfed75c6 | 530 | Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX), |
12bcd1a6 PM |
531 | "Use of %s is deprecated", s); |
532 | } | |
533 | ||
ffb4593c | 534 | /* |
9cbb5ea2 GS |
535 | * experimental text filters for win32 carriage-returns, utf16-to-utf8 and |
536 | * utf16-to-utf8-reversed. | |
ffb4593c NT |
537 | */ |
538 | ||
c39cd008 GS |
539 | #ifdef PERL_CR_FILTER |
540 | static void | |
541 | strip_return(SV *sv) | |
542 | { | |
95a20fc0 | 543 | register const char *s = SvPVX_const(sv); |
9d4ba2ae | 544 | register const char * const e = s + SvCUR(sv); |
c39cd008 GS |
545 | /* outer loop optimized to do nothing if there are no CR-LFs */ |
546 | while (s < e) { | |
547 | if (*s++ == '\r' && *s == '\n') { | |
548 | /* hit a CR-LF, need to copy the rest */ | |
549 | register char *d = s - 1; | |
550 | *d++ = *s++; | |
551 | while (s < e) { | |
552 | if (*s == '\r' && s[1] == '\n') | |
553 | s++; | |
554 | *d++ = *s++; | |
555 | } | |
556 | SvCUR(sv) -= s - d; | |
557 | return; | |
558 | } | |
559 | } | |
560 | } | |
a868473f | 561 | |
76e3520e | 562 | STATIC I32 |
c39cd008 | 563 | S_cr_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
a868473f | 564 | { |
f54cb97a | 565 | const I32 count = FILTER_READ(idx+1, sv, maxlen); |
c39cd008 GS |
566 | if (count > 0 && !maxlen) |
567 | strip_return(sv); | |
568 | return count; | |
a868473f NIS |
569 | } |
570 | #endif | |
571 | ||
ffb4593c NT |
572 | /* |
573 | * Perl_lex_start | |
9cbb5ea2 GS |
574 | * Initialize variables. Uses the Perl save_stack to save its state (for |
575 | * recursive calls to the parser). | |
ffb4593c NT |
576 | */ |
577 | ||
a0d0e21e | 578 | void |
864dbfa3 | 579 | Perl_lex_start(pTHX_ SV *line) |
79072805 | 580 | { |
97aff369 | 581 | dVAR; |
cfd0369c | 582 | const char *s; |
8990e307 LW |
583 | STRLEN len; |
584 | ||
3280af22 NIS |
585 | SAVEI32(PL_lex_dojoin); |
586 | SAVEI32(PL_lex_brackets); | |
3280af22 NIS |
587 | SAVEI32(PL_lex_casemods); |
588 | SAVEI32(PL_lex_starts); | |
589 | SAVEI32(PL_lex_state); | |
7766f137 | 590 | SAVEVPTR(PL_lex_inpat); |
3280af22 | 591 | SAVEI32(PL_lex_inwhat); |
5db06880 NC |
592 | #ifdef PERL_MAD |
593 | if (PL_lex_state == LEX_KNOWNEXT) { | |
594 | I32 toke = PL_lasttoke; | |
595 | while (--toke >= 0) { | |
596 | SAVEI32(PL_nexttoke[toke].next_type); | |
597 | SAVEVPTR(PL_nexttoke[toke].next_val); | |
598 | if (PL_madskills) | |
599 | SAVEVPTR(PL_nexttoke[toke].next_mad); | |
600 | } | |
601 | SAVEI32(PL_lasttoke); | |
602 | } | |
603 | if (PL_madskills) { | |
cd81e915 NC |
604 | SAVESPTR(PL_thistoken); |
605 | SAVESPTR(PL_thiswhite); | |
606 | SAVESPTR(PL_nextwhite); | |
607 | SAVESPTR(PL_thisopen); | |
608 | SAVESPTR(PL_thisclose); | |
609 | SAVESPTR(PL_thisstuff); | |
610 | SAVEVPTR(PL_thismad); | |
611 | SAVEI32(PL_realtokenstart); | |
612 | SAVEI32(PL_faketokens); | |
613 | } | |
614 | SAVEI32(PL_curforce); | |
5db06880 | 615 | #else |
18b09519 GS |
616 | if (PL_lex_state == LEX_KNOWNEXT) { |
617 | I32 toke = PL_nexttoke; | |
618 | while (--toke >= 0) { | |
619 | SAVEI32(PL_nexttype[toke]); | |
620 | SAVEVPTR(PL_nextval[toke]); | |
621 | } | |
622 | SAVEI32(PL_nexttoke); | |
18b09519 | 623 | } |
5db06880 | 624 | #endif |
57843af0 | 625 | SAVECOPLINE(PL_curcop); |
3280af22 NIS |
626 | SAVEPPTR(PL_bufptr); |
627 | SAVEPPTR(PL_bufend); | |
628 | SAVEPPTR(PL_oldbufptr); | |
629 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
630 | SAVEPPTR(PL_last_lop); |
631 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
632 | SAVEPPTR(PL_linestart); |
633 | SAVESPTR(PL_linestr); | |
8edd5f42 RGS |
634 | SAVEGENERICPV(PL_lex_brackstack); |
635 | SAVEGENERICPV(PL_lex_casestack); | |
c76ac1ee | 636 | SAVEDESTRUCTOR_X(restore_rsfp, PL_rsfp); |
3280af22 NIS |
637 | SAVESPTR(PL_lex_stuff); |
638 | SAVEI32(PL_lex_defer); | |
09bef843 | 639 | SAVEI32(PL_sublex_info.sub_inwhat); |
3280af22 | 640 | SAVESPTR(PL_lex_repl); |
bebdddfc GS |
641 | SAVEINT(PL_expect); |
642 | SAVEINT(PL_lex_expect); | |
3280af22 NIS |
643 | |
644 | PL_lex_state = LEX_NORMAL; | |
645 | PL_lex_defer = 0; | |
646 | PL_expect = XSTATE; | |
647 | PL_lex_brackets = 0; | |
a02a5408 JC |
648 | Newx(PL_lex_brackstack, 120, char); |
649 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
650 | PL_lex_casemods = 0; |
651 | *PL_lex_casestack = '\0'; | |
652 | PL_lex_dojoin = 0; | |
653 | PL_lex_starts = 0; | |
a0714e2c SS |
654 | PL_lex_stuff = NULL; |
655 | PL_lex_repl = NULL; | |
3280af22 | 656 | PL_lex_inpat = 0; |
5db06880 NC |
657 | #ifdef PERL_MAD |
658 | PL_lasttoke = 0; | |
659 | #else | |
76be56bc | 660 | PL_nexttoke = 0; |
5db06880 | 661 | #endif |
3280af22 | 662 | PL_lex_inwhat = 0; |
09bef843 | 663 | PL_sublex_info.sub_inwhat = 0; |
3280af22 NIS |
664 | PL_linestr = line; |
665 | if (SvREADONLY(PL_linestr)) | |
666 | PL_linestr = sv_2mortal(newSVsv(PL_linestr)); | |
cfd0369c | 667 | s = SvPV_const(PL_linestr, len); |
6f27f9a7 | 668 | if (!len || s[len-1] != ';') { |
3280af22 NIS |
669 | if (!(SvFLAGS(PL_linestr) & SVs_TEMP)) |
670 | PL_linestr = sv_2mortal(newSVsv(PL_linestr)); | |
396482e1 | 671 | sv_catpvs(PL_linestr, "\n;"); |
8990e307 | 672 | } |
3280af22 NIS |
673 | SvTEMP_off(PL_linestr); |
674 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
675 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); | |
bd61b366 | 676 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 677 | PL_rsfp = 0; |
79072805 | 678 | } |
a687059c | 679 | |
ffb4593c NT |
680 | /* |
681 | * Perl_lex_end | |
9cbb5ea2 GS |
682 | * Finalizer for lexing operations. Must be called when the parser is |
683 | * done with the lexer. | |
ffb4593c NT |
684 | */ |
685 | ||
463ee0b2 | 686 | void |
864dbfa3 | 687 | Perl_lex_end(pTHX) |
463ee0b2 | 688 | { |
97aff369 | 689 | dVAR; |
3280af22 | 690 | PL_doextract = FALSE; |
463ee0b2 LW |
691 | } |
692 | ||
ffb4593c NT |
693 | /* |
694 | * S_incline | |
695 | * This subroutine has nothing to do with tilting, whether at windmills | |
696 | * or pinball tables. Its name is short for "increment line". It | |
57843af0 | 697 | * increments the current line number in CopLINE(PL_curcop) and checks |
ffb4593c | 698 | * to see whether the line starts with a comment of the form |
9cbb5ea2 GS |
699 | * # line 500 "foo.pm" |
700 | * If so, it sets the current line number and file to the values in the comment. | |
ffb4593c NT |
701 | */ |
702 | ||
76e3520e | 703 | STATIC void |
cea2e8a9 | 704 | S_incline(pTHX_ char *s) |
463ee0b2 | 705 | { |
97aff369 | 706 | dVAR; |
463ee0b2 LW |
707 | char *t; |
708 | char *n; | |
73659bf1 | 709 | char *e; |
463ee0b2 | 710 | char ch; |
463ee0b2 | 711 | |
57843af0 | 712 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
713 | if (*s++ != '#') |
714 | return; | |
d4c19fe8 AL |
715 | while (SPACE_OR_TAB(*s)) |
716 | s++; | |
73659bf1 GS |
717 | if (strnEQ(s, "line", 4)) |
718 | s += 4; | |
719 | else | |
720 | return; | |
084592ab | 721 | if (SPACE_OR_TAB(*s)) |
73659bf1 | 722 | s++; |
4e553d73 | 723 | else |
73659bf1 | 724 | return; |
d4c19fe8 AL |
725 | while (SPACE_OR_TAB(*s)) |
726 | s++; | |
463ee0b2 LW |
727 | if (!isDIGIT(*s)) |
728 | return; | |
d4c19fe8 | 729 | |
463ee0b2 LW |
730 | n = s; |
731 | while (isDIGIT(*s)) | |
732 | s++; | |
bf4acbe4 | 733 | while (SPACE_OR_TAB(*s)) |
463ee0b2 | 734 | s++; |
73659bf1 | 735 | if (*s == '"' && (t = strchr(s+1, '"'))) { |
463ee0b2 | 736 | s++; |
73659bf1 GS |
737 | e = t + 1; |
738 | } | |
463ee0b2 | 739 | else { |
c35e046a AL |
740 | t = s; |
741 | while (!isSPACE(*t)) | |
742 | t++; | |
73659bf1 | 743 | e = t; |
463ee0b2 | 744 | } |
bf4acbe4 | 745 | while (SPACE_OR_TAB(*e) || *e == '\r' || *e == '\f') |
73659bf1 GS |
746 | e++; |
747 | if (*e != '\n' && *e != '\0') | |
748 | return; /* false alarm */ | |
749 | ||
463ee0b2 LW |
750 | ch = *t; |
751 | *t = '\0'; | |
f4dd75d9 | 752 | if (t - s > 0) { |
8a5ee598 | 753 | #ifndef USE_ITHREADS |
c4420975 | 754 | const char * const cf = CopFILE(PL_curcop); |
42d9b98d NC |
755 | STRLEN tmplen = cf ? strlen(cf) : 0; |
756 | if (tmplen > 7 && strnEQ(cf, "(eval ", 6)) { | |
e66cf94c RGS |
757 | /* must copy *{"::_<(eval N)[oldfilename:L]"} |
758 | * to *{"::_<newfilename"} */ | |
759 | char smallbuf[256], smallbuf2[256]; | |
760 | char *tmpbuf, *tmpbuf2; | |
8a5ee598 | 761 | GV **gvp, *gv2; |
e66cf94c RGS |
762 | STRLEN tmplen2 = strlen(s); |
763 | if (tmplen + 3 < sizeof smallbuf) | |
764 | tmpbuf = smallbuf; | |
765 | else | |
766 | Newx(tmpbuf, tmplen + 3, char); | |
767 | if (tmplen2 + 3 < sizeof smallbuf2) | |
768 | tmpbuf2 = smallbuf2; | |
769 | else | |
770 | Newx(tmpbuf2, tmplen2 + 3, char); | |
771 | tmpbuf[0] = tmpbuf2[0] = '_'; | |
772 | tmpbuf[1] = tmpbuf2[1] = '<'; | |
773 | memcpy(tmpbuf + 2, cf, ++tmplen); | |
774 | memcpy(tmpbuf2 + 2, s, ++tmplen2); | |
775 | ++tmplen; ++tmplen2; | |
8a5ee598 RGS |
776 | gvp = (GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, FALSE); |
777 | if (gvp) { | |
778 | gv2 = *(GV**)hv_fetch(PL_defstash, tmpbuf2, tmplen2, TRUE); | |
779 | if (!isGV(gv2)) | |
780 | gv_init(gv2, PL_defstash, tmpbuf2, tmplen2, FALSE); | |
781 | /* adjust ${"::_<newfilename"} to store the new file name */ | |
782 | GvSV(gv2) = newSVpvn(tmpbuf2 + 2, tmplen2 - 2); | |
783 | GvHV(gv2) = (HV*)SvREFCNT_inc(GvHV(*gvp)); | |
784 | GvAV(gv2) = (AV*)SvREFCNT_inc(GvAV(*gvp)); | |
785 | } | |
e66cf94c RGS |
786 | if (tmpbuf != smallbuf) Safefree(tmpbuf); |
787 | if (tmpbuf2 != smallbuf2) Safefree(tmpbuf2); | |
788 | } | |
8a5ee598 | 789 | #endif |
05ec9bb3 | 790 | CopFILE_free(PL_curcop); |
57843af0 | 791 | CopFILE_set(PL_curcop, s); |
f4dd75d9 | 792 | } |
463ee0b2 | 793 | *t = ch; |
57843af0 | 794 | CopLINE_set(PL_curcop, atoi(n)-1); |
463ee0b2 LW |
795 | } |
796 | ||
29595ff2 | 797 | #ifdef PERL_MAD |
cd81e915 | 798 | /* skip space before PL_thistoken */ |
29595ff2 NC |
799 | |
800 | STATIC char * | |
801 | S_skipspace0(pTHX_ register char *s) | |
802 | { | |
803 | s = skipspace(s); | |
804 | if (!PL_madskills) | |
805 | return s; | |
cd81e915 NC |
806 | if (PL_skipwhite) { |
807 | if (!PL_thiswhite) | |
6b29d1f5 | 808 | PL_thiswhite = newSVpvs(""); |
cd81e915 NC |
809 | sv_catsv(PL_thiswhite, PL_skipwhite); |
810 | sv_free(PL_skipwhite); | |
811 | PL_skipwhite = 0; | |
812 | } | |
813 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
29595ff2 NC |
814 | return s; |
815 | } | |
816 | ||
cd81e915 | 817 | /* skip space after PL_thistoken */ |
29595ff2 NC |
818 | |
819 | STATIC char * | |
820 | S_skipspace1(pTHX_ register char *s) | |
821 | { | |
d4c19fe8 | 822 | const char *start = s; |
29595ff2 NC |
823 | I32 startoff = start - SvPVX(PL_linestr); |
824 | ||
825 | s = skipspace(s); | |
826 | if (!PL_madskills) | |
827 | return s; | |
828 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 829 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 830 | const char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
831 | PL_thistoken = newSVpvn(tstart, start - tstart); |
832 | } | |
833 | PL_realtokenstart = -1; | |
834 | if (PL_skipwhite) { | |
835 | if (!PL_nextwhite) | |
6b29d1f5 | 836 | PL_nextwhite = newSVpvs(""); |
cd81e915 NC |
837 | sv_catsv(PL_nextwhite, PL_skipwhite); |
838 | sv_free(PL_skipwhite); | |
839 | PL_skipwhite = 0; | |
29595ff2 NC |
840 | } |
841 | return s; | |
842 | } | |
843 | ||
844 | STATIC char * | |
845 | S_skipspace2(pTHX_ register char *s, SV **svp) | |
846 | { | |
c35e046a AL |
847 | char *start; |
848 | const I32 bufptroff = PL_bufptr - SvPVX(PL_linestr); | |
849 | const I32 startoff = s - SvPVX(PL_linestr); | |
850 | ||
29595ff2 NC |
851 | s = skipspace(s); |
852 | PL_bufptr = SvPVX(PL_linestr) + bufptroff; | |
853 | if (!PL_madskills || !svp) | |
854 | return s; | |
855 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 856 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 857 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
858 | PL_thistoken = newSVpvn(tstart, start - tstart); |
859 | PL_realtokenstart = -1; | |
29595ff2 | 860 | } |
cd81e915 | 861 | if (PL_skipwhite) { |
29595ff2 | 862 | if (!*svp) |
6b29d1f5 | 863 | *svp = newSVpvs(""); |
cd81e915 NC |
864 | sv_setsv(*svp, PL_skipwhite); |
865 | sv_free(PL_skipwhite); | |
866 | PL_skipwhite = 0; | |
29595ff2 NC |
867 | } |
868 | ||
869 | return s; | |
870 | } | |
871 | #endif | |
872 | ||
ffb4593c NT |
873 | /* |
874 | * S_skipspace | |
875 | * Called to gobble the appropriate amount and type of whitespace. | |
876 | * Skips comments as well. | |
877 | */ | |
878 | ||
76e3520e | 879 | STATIC char * |
cea2e8a9 | 880 | S_skipspace(pTHX_ register char *s) |
a687059c | 881 | { |
97aff369 | 882 | dVAR; |
5db06880 NC |
883 | #ifdef PERL_MAD |
884 | int curoff; | |
885 | int startoff = s - SvPVX(PL_linestr); | |
886 | ||
cd81e915 NC |
887 | if (PL_skipwhite) { |
888 | sv_free(PL_skipwhite); | |
889 | PL_skipwhite = 0; | |
5db06880 NC |
890 | } |
891 | #endif | |
892 | ||
3280af22 | 893 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
bf4acbe4 | 894 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
463ee0b2 | 895 | s++; |
5db06880 NC |
896 | #ifdef PERL_MAD |
897 | goto done; | |
898 | #else | |
463ee0b2 | 899 | return s; |
5db06880 | 900 | #endif |
463ee0b2 LW |
901 | } |
902 | for (;;) { | |
fd049845 | 903 | STRLEN prevlen; |
09bef843 | 904 | SSize_t oldprevlen, oldoldprevlen; |
9c5ffd7c | 905 | SSize_t oldloplen = 0, oldunilen = 0; |
60e6418e GS |
906 | while (s < PL_bufend && isSPACE(*s)) { |
907 | if (*s++ == '\n' && PL_in_eval && !PL_rsfp) | |
908 | incline(s); | |
909 | } | |
ffb4593c NT |
910 | |
911 | /* comment */ | |
3280af22 NIS |
912 | if (s < PL_bufend && *s == '#') { |
913 | while (s < PL_bufend && *s != '\n') | |
463ee0b2 | 914 | s++; |
60e6418e | 915 | if (s < PL_bufend) { |
463ee0b2 | 916 | s++; |
60e6418e GS |
917 | if (PL_in_eval && !PL_rsfp) { |
918 | incline(s); | |
919 | continue; | |
920 | } | |
921 | } | |
463ee0b2 | 922 | } |
ffb4593c NT |
923 | |
924 | /* only continue to recharge the buffer if we're at the end | |
925 | * of the buffer, we're not reading from a source filter, and | |
926 | * we're in normal lexing mode | |
927 | */ | |
09bef843 SB |
928 | if (s < PL_bufend || !PL_rsfp || PL_sublex_info.sub_inwhat || |
929 | PL_lex_state == LEX_FORMLINE) | |
5db06880 NC |
930 | #ifdef PERL_MAD |
931 | goto done; | |
932 | #else | |
463ee0b2 | 933 | return s; |
5db06880 | 934 | #endif |
ffb4593c NT |
935 | |
936 | /* try to recharge the buffer */ | |
5db06880 NC |
937 | #ifdef PERL_MAD |
938 | curoff = s - SvPVX(PL_linestr); | |
939 | #endif | |
940 | ||
9cbb5ea2 | 941 | if ((s = filter_gets(PL_linestr, PL_rsfp, |
bd61b366 | 942 | (prevlen = SvCUR(PL_linestr)))) == NULL) |
9cbb5ea2 | 943 | { |
5db06880 NC |
944 | #ifdef PERL_MAD |
945 | if (PL_madskills && curoff != startoff) { | |
cd81e915 | 946 | if (!PL_skipwhite) |
6b29d1f5 | 947 | PL_skipwhite = newSVpvs(""); |
cd81e915 | 948 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, |
5db06880 NC |
949 | curoff - startoff); |
950 | } | |
951 | ||
952 | /* mustn't throw out old stuff yet if madpropping */ | |
953 | SvCUR(PL_linestr) = curoff; | |
954 | s = SvPVX(PL_linestr) + curoff; | |
955 | *s = 0; | |
956 | if (curoff && s[-1] == '\n') | |
957 | s[-1] = ' '; | |
958 | #endif | |
959 | ||
9cbb5ea2 | 960 | /* end of file. Add on the -p or -n magic */ |
cd81e915 | 961 | /* XXX these shouldn't really be added here, can't set PL_faketokens */ |
01a19ab0 | 962 | if (PL_minus_p) { |
5db06880 NC |
963 | #ifdef PERL_MAD |
964 | sv_catpv(PL_linestr, | |
965 | ";}continue{print or die qq(-p destination: $!\\n);}"); | |
966 | #else | |
01a19ab0 NC |
967 | sv_setpv(PL_linestr, |
968 | ";}continue{print or die qq(-p destination: $!\\n);}"); | |
5db06880 | 969 | #endif |
3280af22 | 970 | PL_minus_n = PL_minus_p = 0; |
a0d0e21e | 971 | } |
01a19ab0 | 972 | else if (PL_minus_n) { |
5db06880 NC |
973 | #ifdef PERL_MAD |
974 | sv_catpvn(PL_linestr, ";}", 2); | |
975 | #else | |
01a19ab0 | 976 | sv_setpvn(PL_linestr, ";}", 2); |
5db06880 | 977 | #endif |
01a19ab0 NC |
978 | PL_minus_n = 0; |
979 | } | |
a0d0e21e | 980 | else |
5db06880 NC |
981 | #ifdef PERL_MAD |
982 | sv_catpvn(PL_linestr,";", 1); | |
983 | #else | |
4147a61b | 984 | sv_setpvn(PL_linestr,";", 1); |
5db06880 | 985 | #endif |
ffb4593c NT |
986 | |
987 | /* reset variables for next time we lex */ | |
9cbb5ea2 | 988 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart |
89122651 NC |
989 | = SvPVX(PL_linestr) |
990 | #ifdef PERL_MAD | |
991 | + curoff | |
992 | #endif | |
993 | ; | |
3280af22 | 994 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 995 | PL_last_lop = PL_last_uni = NULL; |
ffb4593c NT |
996 | |
997 | /* Close the filehandle. Could be from -P preprocessor, | |
998 | * STDIN, or a regular file. If we were reading code from | |
999 | * STDIN (because the commandline held no -e or filename) | |
1000 | * then we don't close it, we reset it so the code can | |
1001 | * read from STDIN too. | |
1002 | */ | |
1003 | ||
3280af22 NIS |
1004 | if (PL_preprocess && !PL_in_eval) |
1005 | (void)PerlProc_pclose(PL_rsfp); | |
1006 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) | |
1007 | PerlIO_clearerr(PL_rsfp); | |
8990e307 | 1008 | else |
3280af22 | 1009 | (void)PerlIO_close(PL_rsfp); |
4608196e | 1010 | PL_rsfp = NULL; |
463ee0b2 LW |
1011 | return s; |
1012 | } | |
ffb4593c NT |
1013 | |
1014 | /* not at end of file, so we only read another line */ | |
09bef843 SB |
1015 | /* make corresponding updates to old pointers, for yyerror() */ |
1016 | oldprevlen = PL_oldbufptr - PL_bufend; | |
1017 | oldoldprevlen = PL_oldoldbufptr - PL_bufend; | |
1018 | if (PL_last_uni) | |
1019 | oldunilen = PL_last_uni - PL_bufend; | |
1020 | if (PL_last_lop) | |
1021 | oldloplen = PL_last_lop - PL_bufend; | |
3280af22 NIS |
1022 | PL_linestart = PL_bufptr = s + prevlen; |
1023 | PL_bufend = s + SvCUR(PL_linestr); | |
1024 | s = PL_bufptr; | |
09bef843 SB |
1025 | PL_oldbufptr = s + oldprevlen; |
1026 | PL_oldoldbufptr = s + oldoldprevlen; | |
1027 | if (PL_last_uni) | |
1028 | PL_last_uni = s + oldunilen; | |
1029 | if (PL_last_lop) | |
1030 | PL_last_lop = s + oldloplen; | |
a0d0e21e | 1031 | incline(s); |
ffb4593c NT |
1032 | |
1033 | /* debugger active and we're not compiling the debugger code, | |
1034 | * so store the line into the debugger's array of lines | |
1035 | */ | |
3280af22 | 1036 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
561b68a9 | 1037 | SV * const sv = newSV(0); |
8990e307 LW |
1038 | |
1039 | sv_upgrade(sv, SVt_PVMG); | |
3280af22 | 1040 | sv_setpvn(sv,PL_bufptr,PL_bufend-PL_bufptr); |
0ac0412a | 1041 | (void)SvIOK_on(sv); |
45977657 | 1042 | SvIV_set(sv, 0); |
36c7798d | 1043 | av_store(CopFILEAVx(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
8990e307 | 1044 | } |
463ee0b2 | 1045 | } |
5db06880 NC |
1046 | |
1047 | #ifdef PERL_MAD | |
1048 | done: | |
1049 | if (PL_madskills) { | |
cd81e915 | 1050 | if (!PL_skipwhite) |
6b29d1f5 | 1051 | PL_skipwhite = newSVpvs(""); |
5db06880 NC |
1052 | curoff = s - SvPVX(PL_linestr); |
1053 | if (curoff - startoff) | |
cd81e915 | 1054 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, |
5db06880 NC |
1055 | curoff - startoff); |
1056 | } | |
1057 | return s; | |
1058 | #endif | |
a687059c | 1059 | } |
378cc40b | 1060 | |
ffb4593c NT |
1061 | /* |
1062 | * S_check_uni | |
1063 | * Check the unary operators to ensure there's no ambiguity in how they're | |
1064 | * used. An ambiguous piece of code would be: | |
1065 | * rand + 5 | |
1066 | * This doesn't mean rand() + 5. Because rand() is a unary operator, | |
1067 | * the +5 is its argument. | |
1068 | */ | |
1069 | ||
76e3520e | 1070 | STATIC void |
cea2e8a9 | 1071 | S_check_uni(pTHX) |
ba106d47 | 1072 | { |
97aff369 | 1073 | dVAR; |
d4c19fe8 AL |
1074 | const char *s; |
1075 | const char *t; | |
2f3197b3 | 1076 | |
3280af22 | 1077 | if (PL_oldoldbufptr != PL_last_uni) |
2f3197b3 | 1078 | return; |
3280af22 NIS |
1079 | while (isSPACE(*PL_last_uni)) |
1080 | PL_last_uni++; | |
c35e046a AL |
1081 | s = PL_last_uni; |
1082 | while (isALNUM_lazy_if(s,UTF) || *s == '-') | |
1083 | s++; | |
3280af22 | 1084 | if ((t = strchr(s, '(')) && t < PL_bufptr) |
a0d0e21e | 1085 | return; |
6136c704 | 1086 | |
0453d815 | 1087 | if (ckWARN_d(WARN_AMBIGUOUS)){ |
9014280d | 1088 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
32d45c1d NC |
1089 | "Warning: Use of \"%.*s\" without parentheses is ambiguous", |
1090 | (int)(s - PL_last_uni), PL_last_uni); | |
0453d815 | 1091 | } |
2f3197b3 LW |
1092 | } |
1093 | ||
ffb4593c NT |
1094 | /* |
1095 | * LOP : macro to build a list operator. Its behaviour has been replaced | |
1096 | * with a subroutine, S_lop() for which LOP is just another name. | |
1097 | */ | |
1098 | ||
a0d0e21e LW |
1099 | #define LOP(f,x) return lop(f,x,s) |
1100 | ||
ffb4593c NT |
1101 | /* |
1102 | * S_lop | |
1103 | * Build a list operator (or something that might be one). The rules: | |
1104 | * - if we have a next token, then it's a list operator [why?] | |
1105 | * - if the next thing is an opening paren, then it's a function | |
1106 | * - else it's a list operator | |
1107 | */ | |
1108 | ||
76e3520e | 1109 | STATIC I32 |
a0be28da | 1110 | S_lop(pTHX_ I32 f, int x, char *s) |
ffed7fef | 1111 | { |
97aff369 | 1112 | dVAR; |
79072805 | 1113 | yylval.ival = f; |
35c8bce7 | 1114 | CLINE; |
3280af22 NIS |
1115 | PL_expect = x; |
1116 | PL_bufptr = s; | |
1117 | PL_last_lop = PL_oldbufptr; | |
eb160463 | 1118 | PL_last_lop_op = (OPCODE)f; |
5db06880 NC |
1119 | #ifdef PERL_MAD |
1120 | if (PL_lasttoke) | |
1121 | return REPORT(LSTOP); | |
1122 | #else | |
3280af22 | 1123 | if (PL_nexttoke) |
bbf60fe6 | 1124 | return REPORT(LSTOP); |
5db06880 | 1125 | #endif |
79072805 | 1126 | if (*s == '(') |
bbf60fe6 | 1127 | return REPORT(FUNC); |
29595ff2 | 1128 | s = PEEKSPACE(s); |
79072805 | 1129 | if (*s == '(') |
bbf60fe6 | 1130 | return REPORT(FUNC); |
79072805 | 1131 | else |
bbf60fe6 | 1132 | return REPORT(LSTOP); |
79072805 LW |
1133 | } |
1134 | ||
5db06880 NC |
1135 | #ifdef PERL_MAD |
1136 | /* | |
1137 | * S_start_force | |
1138 | * Sets up for an eventual force_next(). start_force(0) basically does | |
1139 | * an unshift, while start_force(-1) does a push. yylex removes items | |
1140 | * on the "pop" end. | |
1141 | */ | |
1142 | ||
1143 | STATIC void | |
1144 | S_start_force(pTHX_ int where) | |
1145 | { | |
1146 | int i; | |
1147 | ||
cd81e915 | 1148 | if (where < 0) /* so people can duplicate start_force(PL_curforce) */ |
5db06880 | 1149 | where = PL_lasttoke; |
cd81e915 NC |
1150 | assert(PL_curforce < 0 || PL_curforce == where); |
1151 | if (PL_curforce != where) { | |
5db06880 NC |
1152 | for (i = PL_lasttoke; i > where; --i) { |
1153 | PL_nexttoke[i] = PL_nexttoke[i-1]; | |
1154 | } | |
1155 | PL_lasttoke++; | |
1156 | } | |
cd81e915 | 1157 | if (PL_curforce < 0) /* in case of duplicate start_force() */ |
5db06880 | 1158 | Zero(&PL_nexttoke[where], 1, NEXTTOKE); |
cd81e915 NC |
1159 | PL_curforce = where; |
1160 | if (PL_nextwhite) { | |
5db06880 | 1161 | if (PL_madskills) |
6b29d1f5 | 1162 | curmad('^', newSVpvs("")); |
cd81e915 | 1163 | CURMAD('_', PL_nextwhite); |
5db06880 NC |
1164 | } |
1165 | } | |
1166 | ||
1167 | STATIC void | |
1168 | S_curmad(pTHX_ char slot, SV *sv) | |
1169 | { | |
1170 | MADPROP **where; | |
1171 | ||
1172 | if (!sv) | |
1173 | return; | |
cd81e915 NC |
1174 | if (PL_curforce < 0) |
1175 | where = &PL_thismad; | |
5db06880 | 1176 | else |
cd81e915 | 1177 | where = &PL_nexttoke[PL_curforce].next_mad; |
5db06880 | 1178 | |
cd81e915 | 1179 | if (PL_faketokens) |
5db06880 NC |
1180 | sv_setpvn(sv, "", 0); |
1181 | else { | |
1182 | if (!IN_BYTES) { | |
1183 | if (UTF && is_utf8_string((U8*)SvPVX(sv), SvCUR(sv))) | |
1184 | SvUTF8_on(sv); | |
1185 | else if (PL_encoding) { | |
1186 | sv_recode_to_utf8(sv, PL_encoding); | |
1187 | } | |
1188 | } | |
1189 | } | |
1190 | ||
1191 | /* keep a slot open for the head of the list? */ | |
1192 | if (slot != '_' && *where && (*where)->mad_key == '^') { | |
1193 | (*where)->mad_key = slot; | |
1194 | sv_free((*where)->mad_val); | |
1195 | (*where)->mad_val = (void*)sv; | |
1196 | } | |
1197 | else | |
1198 | addmad(newMADsv(slot, sv), where, 0); | |
1199 | } | |
1200 | #else | |
b3f24c00 MHM |
1201 | # define start_force(where) NOOP |
1202 | # define curmad(slot, sv) NOOP | |
5db06880 NC |
1203 | #endif |
1204 | ||
ffb4593c NT |
1205 | /* |
1206 | * S_force_next | |
9cbb5ea2 | 1207 | * When the lexer realizes it knows the next token (for instance, |
ffb4593c | 1208 | * it is reordering tokens for the parser) then it can call S_force_next |
9cbb5ea2 | 1209 | * to know what token to return the next time the lexer is called. Caller |
5db06880 NC |
1210 | * will need to set PL_nextval[] (or PL_nexttoke[].next_val with PERL_MAD), |
1211 | * and possibly PL_expect to ensure the lexer handles the token correctly. | |
ffb4593c NT |
1212 | */ |
1213 | ||
4e553d73 | 1214 | STATIC void |
cea2e8a9 | 1215 | S_force_next(pTHX_ I32 type) |
79072805 | 1216 | { |
97aff369 | 1217 | dVAR; |
5db06880 | 1218 | #ifdef PERL_MAD |
cd81e915 | 1219 | if (PL_curforce < 0) |
5db06880 | 1220 | start_force(PL_lasttoke); |
cd81e915 | 1221 | PL_nexttoke[PL_curforce].next_type = type; |
5db06880 NC |
1222 | if (PL_lex_state != LEX_KNOWNEXT) |
1223 | PL_lex_defer = PL_lex_state; | |
1224 | PL_lex_state = LEX_KNOWNEXT; | |
1225 | PL_lex_expect = PL_expect; | |
cd81e915 | 1226 | PL_curforce = -1; |
5db06880 | 1227 | #else |
3280af22 NIS |
1228 | PL_nexttype[PL_nexttoke] = type; |
1229 | PL_nexttoke++; | |
1230 | if (PL_lex_state != LEX_KNOWNEXT) { | |
1231 | PL_lex_defer = PL_lex_state; | |
1232 | PL_lex_expect = PL_expect; | |
1233 | PL_lex_state = LEX_KNOWNEXT; | |
79072805 | 1234 | } |
5db06880 | 1235 | #endif |
79072805 LW |
1236 | } |
1237 | ||
d0a148a6 NC |
1238 | STATIC SV * |
1239 | S_newSV_maybe_utf8(pTHX_ const char *start, STRLEN len) | |
1240 | { | |
97aff369 | 1241 | dVAR; |
9d4ba2ae | 1242 | SV * const sv = newSVpvn(start,len); |
bfed75c6 | 1243 | if (UTF && !IN_BYTES && is_utf8_string((const U8*)start, len)) |
d0a148a6 NC |
1244 | SvUTF8_on(sv); |
1245 | return sv; | |
1246 | } | |
1247 | ||
ffb4593c NT |
1248 | /* |
1249 | * S_force_word | |
1250 | * When the lexer knows the next thing is a word (for instance, it has | |
1251 | * just seen -> and it knows that the next char is a word char, then | |
1252 | * it calls S_force_word to stick the next word into the PL_next lookahead. | |
1253 | * | |
1254 | * Arguments: | |
b1b65b59 | 1255 | * char *start : buffer position (must be within PL_linestr) |
ffb4593c NT |
1256 | * int token : PL_next will be this type of bare word (e.g., METHOD,WORD) |
1257 | * int check_keyword : if true, Perl checks to make sure the word isn't | |
1258 | * a keyword (do this if the word is a label, e.g. goto FOO) | |
1259 | * int allow_pack : if true, : characters will also be allowed (require, | |
1260 | * use, etc. do this) | |
9cbb5ea2 | 1261 | * int allow_initial_tick : used by the "sub" lexer only. |
ffb4593c NT |
1262 | */ |
1263 | ||
76e3520e | 1264 | STATIC char * |
cea2e8a9 | 1265 | S_force_word(pTHX_ register char *start, int token, int check_keyword, int allow_pack, int allow_initial_tick) |
79072805 | 1266 | { |
97aff369 | 1267 | dVAR; |
463ee0b2 LW |
1268 | register char *s; |
1269 | STRLEN len; | |
4e553d73 | 1270 | |
29595ff2 | 1271 | start = SKIPSPACE1(start); |
463ee0b2 | 1272 | s = start; |
7e2040f0 | 1273 | if (isIDFIRST_lazy_if(s,UTF) || |
a0d0e21e | 1274 | (allow_pack && *s == ':') || |
15f0808c | 1275 | (allow_initial_tick && *s == '\'') ) |
a0d0e21e | 1276 | { |
3280af22 | 1277 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, allow_pack, &len); |
5458a98a | 1278 | if (check_keyword && keyword(PL_tokenbuf, len, 0)) |
463ee0b2 | 1279 | return start; |
cd81e915 | 1280 | start_force(PL_curforce); |
5db06880 NC |
1281 | if (PL_madskills) |
1282 | curmad('X', newSVpvn(start,s-start)); | |
463ee0b2 | 1283 | if (token == METHOD) { |
29595ff2 | 1284 | s = SKIPSPACE1(s); |
463ee0b2 | 1285 | if (*s == '(') |
3280af22 | 1286 | PL_expect = XTERM; |
463ee0b2 | 1287 | else { |
3280af22 | 1288 | PL_expect = XOPERATOR; |
463ee0b2 | 1289 | } |
79072805 | 1290 | } |
9ded7720 | 1291 | NEXTVAL_NEXTTOKE.opval |
d0a148a6 NC |
1292 | = (OP*)newSVOP(OP_CONST,0, |
1293 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
9ded7720 | 1294 | NEXTVAL_NEXTTOKE.opval->op_private |= OPpCONST_BARE; |
79072805 LW |
1295 | force_next(token); |
1296 | } | |
1297 | return s; | |
1298 | } | |
1299 | ||
ffb4593c NT |
1300 | /* |
1301 | * S_force_ident | |
9cbb5ea2 | 1302 | * Called when the lexer wants $foo *foo &foo etc, but the program |
ffb4593c NT |
1303 | * text only contains the "foo" portion. The first argument is a pointer |
1304 | * to the "foo", and the second argument is the type symbol to prefix. | |
1305 | * Forces the next token to be a "WORD". | |
9cbb5ea2 | 1306 | * Creates the symbol if it didn't already exist (via gv_fetchpv()). |
ffb4593c NT |
1307 | */ |
1308 | ||
76e3520e | 1309 | STATIC void |
bfed75c6 | 1310 | S_force_ident(pTHX_ register const char *s, int kind) |
79072805 | 1311 | { |
97aff369 | 1312 | dVAR; |
c35e046a | 1313 | if (*s) { |
90e5519e NC |
1314 | const STRLEN len = strlen(s); |
1315 | OP* const o = (OP*)newSVOP(OP_CONST, 0, newSVpvn(s, len)); | |
cd81e915 | 1316 | start_force(PL_curforce); |
9ded7720 | 1317 | NEXTVAL_NEXTTOKE.opval = o; |
79072805 | 1318 | force_next(WORD); |
748a9306 | 1319 | if (kind) { |
11343788 | 1320 | o->op_private = OPpCONST_ENTERED; |
55497cff | 1321 | /* XXX see note in pp_entereval() for why we forgo typo |
1322 | warnings if the symbol must be introduced in an eval. | |
1323 | GSAR 96-10-12 */ | |
90e5519e NC |
1324 | gv_fetchpvn_flags(s, len, |
1325 | PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) | |
1326 | : GV_ADD, | |
1327 | kind == '$' ? SVt_PV : | |
1328 | kind == '@' ? SVt_PVAV : | |
1329 | kind == '%' ? SVt_PVHV : | |
a0d0e21e | 1330 | SVt_PVGV |
90e5519e | 1331 | ); |
748a9306 | 1332 | } |
79072805 LW |
1333 | } |
1334 | } | |
1335 | ||
1571675a GS |
1336 | NV |
1337 | Perl_str_to_version(pTHX_ SV *sv) | |
1338 | { | |
1339 | NV retval = 0.0; | |
1340 | NV nshift = 1.0; | |
1341 | STRLEN len; | |
cfd0369c | 1342 | const char *start = SvPV_const(sv,len); |
9d4ba2ae | 1343 | const char * const end = start + len; |
504618e9 | 1344 | const bool utf = SvUTF8(sv) ? TRUE : FALSE; |
1571675a | 1345 | while (start < end) { |
ba210ebe | 1346 | STRLEN skip; |
1571675a GS |
1347 | UV n; |
1348 | if (utf) | |
9041c2e3 | 1349 | n = utf8n_to_uvchr((U8*)start, len, &skip, 0); |
1571675a GS |
1350 | else { |
1351 | n = *(U8*)start; | |
1352 | skip = 1; | |
1353 | } | |
1354 | retval += ((NV)n)/nshift; | |
1355 | start += skip; | |
1356 | nshift *= 1000; | |
1357 | } | |
1358 | return retval; | |
1359 | } | |
1360 | ||
4e553d73 | 1361 | /* |
ffb4593c NT |
1362 | * S_force_version |
1363 | * Forces the next token to be a version number. | |
e759cc13 RGS |
1364 | * If the next token appears to be an invalid version number, (e.g. "v2b"), |
1365 | * and if "guessing" is TRUE, then no new token is created (and the caller | |
1366 | * must use an alternative parsing method). | |
ffb4593c NT |
1367 | */ |
1368 | ||
76e3520e | 1369 | STATIC char * |
e759cc13 | 1370 | S_force_version(pTHX_ char *s, int guessing) |
89bfa8cd | 1371 | { |
97aff369 | 1372 | dVAR; |
5f66b61c | 1373 | OP *version = NULL; |
44dcb63b | 1374 | char *d; |
5db06880 NC |
1375 | #ifdef PERL_MAD |
1376 | I32 startoff = s - SvPVX(PL_linestr); | |
1377 | #endif | |
89bfa8cd | 1378 | |
29595ff2 | 1379 | s = SKIPSPACE1(s); |
89bfa8cd | 1380 | |
44dcb63b | 1381 | d = s; |
dd629d5b | 1382 | if (*d == 'v') |
44dcb63b | 1383 | d++; |
44dcb63b | 1384 | if (isDIGIT(*d)) { |
e759cc13 RGS |
1385 | while (isDIGIT(*d) || *d == '_' || *d == '.') |
1386 | d++; | |
5db06880 NC |
1387 | #ifdef PERL_MAD |
1388 | if (PL_madskills) { | |
cd81e915 | 1389 | start_force(PL_curforce); |
5db06880 NC |
1390 | curmad('X', newSVpvn(s,d-s)); |
1391 | } | |
1392 | #endif | |
9f3d182e | 1393 | if (*d == ';' || isSPACE(*d) || *d == '}' || !*d) { |
dd629d5b | 1394 | SV *ver; |
b73d6f50 | 1395 | s = scan_num(s, &yylval); |
89bfa8cd | 1396 | version = yylval.opval; |
dd629d5b GS |
1397 | ver = cSVOPx(version)->op_sv; |
1398 | if (SvPOK(ver) && !SvNIOK(ver)) { | |
862a34c6 | 1399 | SvUPGRADE(ver, SVt_PVNV); |
9d6ce603 | 1400 | SvNV_set(ver, str_to_version(ver)); |
1571675a | 1401 | SvNOK_on(ver); /* hint that it is a version */ |
44dcb63b | 1402 | } |
89bfa8cd | 1403 | } |
5db06880 NC |
1404 | else if (guessing) { |
1405 | #ifdef PERL_MAD | |
1406 | if (PL_madskills) { | |
cd81e915 NC |
1407 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1408 | PL_nextwhite = 0; | |
5db06880 NC |
1409 | s = SvPVX(PL_linestr) + startoff; |
1410 | } | |
1411 | #endif | |
e759cc13 | 1412 | return s; |
5db06880 | 1413 | } |
89bfa8cd | 1414 | } |
1415 | ||
5db06880 NC |
1416 | #ifdef PERL_MAD |
1417 | if (PL_madskills && !version) { | |
cd81e915 NC |
1418 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1419 | PL_nextwhite = 0; | |
5db06880 NC |
1420 | s = SvPVX(PL_linestr) + startoff; |
1421 | } | |
1422 | #endif | |
89bfa8cd | 1423 | /* NOTE: The parser sees the package name and the VERSION swapped */ |
cd81e915 | 1424 | start_force(PL_curforce); |
9ded7720 | 1425 | NEXTVAL_NEXTTOKE.opval = version; |
4e553d73 | 1426 | force_next(WORD); |
89bfa8cd | 1427 | |
e759cc13 | 1428 | return s; |
89bfa8cd | 1429 | } |
1430 | ||
ffb4593c NT |
1431 | /* |
1432 | * S_tokeq | |
1433 | * Tokenize a quoted string passed in as an SV. It finds the next | |
1434 | * chunk, up to end of string or a backslash. It may make a new | |
1435 | * SV containing that chunk (if HINT_NEW_STRING is on). It also | |
1436 | * turns \\ into \. | |
1437 | */ | |
1438 | ||
76e3520e | 1439 | STATIC SV * |
cea2e8a9 | 1440 | S_tokeq(pTHX_ SV *sv) |
79072805 | 1441 | { |
97aff369 | 1442 | dVAR; |
79072805 LW |
1443 | register char *s; |
1444 | register char *send; | |
1445 | register char *d; | |
b3ac6de7 IZ |
1446 | STRLEN len = 0; |
1447 | SV *pv = sv; | |
79072805 LW |
1448 | |
1449 | if (!SvLEN(sv)) | |
b3ac6de7 | 1450 | goto finish; |
79072805 | 1451 | |
a0d0e21e | 1452 | s = SvPV_force(sv, len); |
21a311ee | 1453 | if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) |
b3ac6de7 | 1454 | goto finish; |
463ee0b2 | 1455 | send = s + len; |
79072805 LW |
1456 | while (s < send && *s != '\\') |
1457 | s++; | |
1458 | if (s == send) | |
b3ac6de7 | 1459 | goto finish; |
79072805 | 1460 | d = s; |
be4731d2 | 1461 | if ( PL_hints & HINT_NEW_STRING ) { |
95a20fc0 | 1462 | pv = sv_2mortal(newSVpvn(SvPVX_const(pv), len)); |
be4731d2 NIS |
1463 | if (SvUTF8(sv)) |
1464 | SvUTF8_on(pv); | |
1465 | } | |
79072805 LW |
1466 | while (s < send) { |
1467 | if (*s == '\\') { | |
a0d0e21e | 1468 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
1469 | s++; /* all that, just for this */ |
1470 | } | |
1471 | *d++ = *s++; | |
1472 | } | |
1473 | *d = '\0'; | |
95a20fc0 | 1474 | SvCUR_set(sv, d - SvPVX_const(sv)); |
b3ac6de7 | 1475 | finish: |
3280af22 | 1476 | if ( PL_hints & HINT_NEW_STRING ) |
b3ac6de7 | 1477 | return new_constant(NULL, 0, "q", sv, pv, "q"); |
79072805 LW |
1478 | return sv; |
1479 | } | |
1480 | ||
ffb4593c NT |
1481 | /* |
1482 | * Now come three functions related to double-quote context, | |
1483 | * S_sublex_start, S_sublex_push, and S_sublex_done. They're used when | |
1484 | * converting things like "\u\Lgnat" into ucfirst(lc("gnat")). They | |
1485 | * interact with PL_lex_state, and create fake ( ... ) argument lists | |
1486 | * to handle functions and concatenation. | |
1487 | * They assume that whoever calls them will be setting up a fake | |
1488 | * join call, because each subthing puts a ',' after it. This lets | |
1489 | * "lower \luPpEr" | |
1490 | * become | |
1491 | * join($, , 'lower ', lcfirst( 'uPpEr', ) ,) | |
1492 | * | |
1493 | * (I'm not sure whether the spurious commas at the end of lcfirst's | |
1494 | * arguments and join's arguments are created or not). | |
1495 | */ | |
1496 | ||
1497 | /* | |
1498 | * S_sublex_start | |
1499 | * Assumes that yylval.ival is the op we're creating (e.g. OP_LCFIRST). | |
1500 | * | |
1501 | * Pattern matching will set PL_lex_op to the pattern-matching op to | |
1502 | * make (we return THING if yylval.ival is OP_NULL, PMFUNC otherwise). | |
1503 | * | |
1504 | * OP_CONST and OP_READLINE are easy--just make the new op and return. | |
1505 | * | |
1506 | * Everything else becomes a FUNC. | |
1507 | * | |
1508 | * Sets PL_lex_state to LEX_INTERPPUSH unless (ival was OP_NULL or we | |
1509 | * had an OP_CONST or OP_READLINE). This just sets us up for a | |
1510 | * call to S_sublex_push(). | |
1511 | */ | |
1512 | ||
76e3520e | 1513 | STATIC I32 |
cea2e8a9 | 1514 | S_sublex_start(pTHX) |
79072805 | 1515 | { |
97aff369 | 1516 | dVAR; |
0d46e09a | 1517 | register const I32 op_type = yylval.ival; |
79072805 LW |
1518 | |
1519 | if (op_type == OP_NULL) { | |
3280af22 | 1520 | yylval.opval = PL_lex_op; |
5f66b61c | 1521 | PL_lex_op = NULL; |
79072805 LW |
1522 | return THING; |
1523 | } | |
1524 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
3280af22 | 1525 | SV *sv = tokeq(PL_lex_stuff); |
b3ac6de7 IZ |
1526 | |
1527 | if (SvTYPE(sv) == SVt_PVIV) { | |
1528 | /* Overloaded constants, nothing fancy: Convert to SVt_PV: */ | |
1529 | STRLEN len; | |
96a5add6 | 1530 | const char * const p = SvPV_const(sv, len); |
f54cb97a | 1531 | SV * const nsv = newSVpvn(p, len); |
01ec43d0 GS |
1532 | if (SvUTF8(sv)) |
1533 | SvUTF8_on(nsv); | |
b3ac6de7 IZ |
1534 | SvREFCNT_dec(sv); |
1535 | sv = nsv; | |
4e553d73 | 1536 | } |
b3ac6de7 | 1537 | yylval.opval = (OP*)newSVOP(op_type, 0, sv); |
a0714e2c | 1538 | PL_lex_stuff = NULL; |
6f33ba73 RGS |
1539 | /* Allow <FH> // "foo" */ |
1540 | if (op_type == OP_READLINE) | |
1541 | PL_expect = XTERMORDORDOR; | |
79072805 LW |
1542 | return THING; |
1543 | } | |
1544 | ||
3280af22 NIS |
1545 | PL_sublex_info.super_state = PL_lex_state; |
1546 | PL_sublex_info.sub_inwhat = op_type; | |
1547 | PL_sublex_info.sub_op = PL_lex_op; | |
1548 | PL_lex_state = LEX_INTERPPUSH; | |
55497cff | 1549 | |
3280af22 NIS |
1550 | PL_expect = XTERM; |
1551 | if (PL_lex_op) { | |
1552 | yylval.opval = PL_lex_op; | |
5f66b61c | 1553 | PL_lex_op = NULL; |
55497cff | 1554 | return PMFUNC; |
1555 | } | |
1556 | else | |
1557 | return FUNC; | |
1558 | } | |
1559 | ||
ffb4593c NT |
1560 | /* |
1561 | * S_sublex_push | |
1562 | * Create a new scope to save the lexing state. The scope will be | |
1563 | * ended in S_sublex_done. Returns a '(', starting the function arguments | |
1564 | * to the uc, lc, etc. found before. | |
1565 | * Sets PL_lex_state to LEX_INTERPCONCAT. | |
1566 | */ | |
1567 | ||
76e3520e | 1568 | STATIC I32 |
cea2e8a9 | 1569 | S_sublex_push(pTHX) |
55497cff | 1570 | { |
27da23d5 | 1571 | dVAR; |
f46d017c | 1572 | ENTER; |
55497cff | 1573 | |
3280af22 NIS |
1574 | PL_lex_state = PL_sublex_info.super_state; |
1575 | SAVEI32(PL_lex_dojoin); | |
1576 | SAVEI32(PL_lex_brackets); | |
3280af22 NIS |
1577 | SAVEI32(PL_lex_casemods); |
1578 | SAVEI32(PL_lex_starts); | |
1579 | SAVEI32(PL_lex_state); | |
7766f137 | 1580 | SAVEVPTR(PL_lex_inpat); |
3280af22 | 1581 | SAVEI32(PL_lex_inwhat); |
57843af0 | 1582 | SAVECOPLINE(PL_curcop); |
3280af22 | 1583 | SAVEPPTR(PL_bufptr); |
8452ff4b | 1584 | SAVEPPTR(PL_bufend); |
3280af22 NIS |
1585 | SAVEPPTR(PL_oldbufptr); |
1586 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
1587 | SAVEPPTR(PL_last_lop); |
1588 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
1589 | SAVEPPTR(PL_linestart); |
1590 | SAVESPTR(PL_linestr); | |
8edd5f42 RGS |
1591 | SAVEGENERICPV(PL_lex_brackstack); |
1592 | SAVEGENERICPV(PL_lex_casestack); | |
3280af22 NIS |
1593 | |
1594 | PL_linestr = PL_lex_stuff; | |
a0714e2c | 1595 | PL_lex_stuff = NULL; |
3280af22 | 1596 | |
9cbb5ea2 GS |
1597 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart |
1598 | = SvPVX(PL_linestr); | |
3280af22 | 1599 | PL_bufend += SvCUR(PL_linestr); |
bd61b366 | 1600 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1601 | SAVEFREESV(PL_linestr); |
1602 | ||
1603 | PL_lex_dojoin = FALSE; | |
1604 | PL_lex_brackets = 0; | |
a02a5408 JC |
1605 | Newx(PL_lex_brackstack, 120, char); |
1606 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
1607 | PL_lex_casemods = 0; |
1608 | *PL_lex_casestack = '\0'; | |
1609 | PL_lex_starts = 0; | |
1610 | PL_lex_state = LEX_INTERPCONCAT; | |
eb160463 | 1611 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 NIS |
1612 | |
1613 | PL_lex_inwhat = PL_sublex_info.sub_inwhat; | |
1614 | if (PL_lex_inwhat == OP_MATCH || PL_lex_inwhat == OP_QR || PL_lex_inwhat == OP_SUBST) | |
1615 | PL_lex_inpat = PL_sublex_info.sub_op; | |
79072805 | 1616 | else |
5f66b61c | 1617 | PL_lex_inpat = NULL; |
79072805 | 1618 | |
55497cff | 1619 | return '('; |
79072805 LW |
1620 | } |
1621 | ||
ffb4593c NT |
1622 | /* |
1623 | * S_sublex_done | |
1624 | * Restores lexer state after a S_sublex_push. | |
1625 | */ | |
1626 | ||
76e3520e | 1627 | STATIC I32 |
cea2e8a9 | 1628 | S_sublex_done(pTHX) |
79072805 | 1629 | { |
27da23d5 | 1630 | dVAR; |
3280af22 | 1631 | if (!PL_lex_starts++) { |
396482e1 | 1632 | SV * const sv = newSVpvs(""); |
9aa983d2 JH |
1633 | if (SvUTF8(PL_linestr)) |
1634 | SvUTF8_on(sv); | |
3280af22 | 1635 | PL_expect = XOPERATOR; |
9aa983d2 | 1636 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
79072805 LW |
1637 | return THING; |
1638 | } | |
1639 | ||
3280af22 NIS |
1640 | if (PL_lex_casemods) { /* oops, we've got some unbalanced parens */ |
1641 | PL_lex_state = LEX_INTERPCASEMOD; | |
cea2e8a9 | 1642 | return yylex(); |
79072805 LW |
1643 | } |
1644 | ||
ffb4593c | 1645 | /* Is there a right-hand side to take care of? (s//RHS/ or tr//RHS/) */ |
3280af22 NIS |
1646 | if (PL_lex_repl && (PL_lex_inwhat == OP_SUBST || PL_lex_inwhat == OP_TRANS)) { |
1647 | PL_linestr = PL_lex_repl; | |
1648 | PL_lex_inpat = 0; | |
1649 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
1650 | PL_bufend += SvCUR(PL_linestr); | |
bd61b366 | 1651 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1652 | SAVEFREESV(PL_linestr); |
1653 | PL_lex_dojoin = FALSE; | |
1654 | PL_lex_brackets = 0; | |
3280af22 NIS |
1655 | PL_lex_casemods = 0; |
1656 | *PL_lex_casestack = '\0'; | |
1657 | PL_lex_starts = 0; | |
25da4f38 | 1658 | if (SvEVALED(PL_lex_repl)) { |
3280af22 NIS |
1659 | PL_lex_state = LEX_INTERPNORMAL; |
1660 | PL_lex_starts++; | |
e9fa98b2 HS |
1661 | /* we don't clear PL_lex_repl here, so that we can check later |
1662 | whether this is an evalled subst; that means we rely on the | |
1663 | logic to ensure sublex_done() is called again only via the | |
1664 | branch (in yylex()) that clears PL_lex_repl, else we'll loop */ | |
79072805 | 1665 | } |
e9fa98b2 | 1666 | else { |
3280af22 | 1667 | PL_lex_state = LEX_INTERPCONCAT; |
a0714e2c | 1668 | PL_lex_repl = NULL; |
e9fa98b2 | 1669 | } |
79072805 | 1670 | return ','; |
ffed7fef LW |
1671 | } |
1672 | else { | |
5db06880 NC |
1673 | #ifdef PERL_MAD |
1674 | if (PL_madskills) { | |
cd81e915 NC |
1675 | if (PL_thiswhite) { |
1676 | if (!PL_endwhite) | |
6b29d1f5 | 1677 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
1678 | sv_catsv(PL_endwhite, PL_thiswhite); |
1679 | PL_thiswhite = 0; | |
1680 | } | |
1681 | if (PL_thistoken) | |
1682 | sv_setpvn(PL_thistoken,"",0); | |
5db06880 | 1683 | else |
cd81e915 | 1684 | PL_realtokenstart = -1; |
5db06880 NC |
1685 | } |
1686 | #endif | |
f46d017c | 1687 | LEAVE; |
3280af22 NIS |
1688 | PL_bufend = SvPVX(PL_linestr); |
1689 | PL_bufend += SvCUR(PL_linestr); | |
1690 | PL_expect = XOPERATOR; | |
09bef843 | 1691 | PL_sublex_info.sub_inwhat = 0; |
79072805 | 1692 | return ')'; |
ffed7fef LW |
1693 | } |
1694 | } | |
1695 | ||
02aa26ce NT |
1696 | /* |
1697 | scan_const | |
1698 | ||
1699 | Extracts a pattern, double-quoted string, or transliteration. This | |
1700 | is terrifying code. | |
1701 | ||
94def140 | 1702 | It looks at PL_lex_inwhat and PL_lex_inpat to find out whether it's |
3280af22 | 1703 | processing a pattern (PL_lex_inpat is true), a transliteration |
94def140 | 1704 | (PL_lex_inwhat == OP_TRANS is true), or a double-quoted string. |
02aa26ce | 1705 | |
94def140 TS |
1706 | Returns a pointer to the character scanned up to. If this is |
1707 | advanced from the start pointer supplied (i.e. if anything was | |
9b599b2a GS |
1708 | successfully parsed), will leave an OP for the substring scanned |
1709 | in yylval. Caller must intuit reason for not parsing further | |
1710 | by looking at the next characters herself. | |
1711 | ||
02aa26ce NT |
1712 | In patterns: |
1713 | backslashes: | |
1714 | double-quoted style: \r and \n | |
1715 | regexp special ones: \D \s | |
94def140 TS |
1716 | constants: \x31 |
1717 | backrefs: \1 | |
02aa26ce NT |
1718 | case and quoting: \U \Q \E |
1719 | stops on @ and $, but not for $ as tail anchor | |
1720 | ||
1721 | In transliterations: | |
1722 | characters are VERY literal, except for - not at the start or end | |
94def140 TS |
1723 | of the string, which indicates a range. If the range is in bytes, |
1724 | scan_const expands the range to the full set of intermediate | |
1725 | characters. If the range is in utf8, the hyphen is replaced with | |
1726 | a certain range mark which will be handled by pmtrans() in op.c. | |
02aa26ce NT |
1727 | |
1728 | In double-quoted strings: | |
1729 | backslashes: | |
1730 | double-quoted style: \r and \n | |
94def140 TS |
1731 | constants: \x31 |
1732 | deprecated backrefs: \1 (in substitution replacements) | |
02aa26ce NT |
1733 | case and quoting: \U \Q \E |
1734 | stops on @ and $ | |
1735 | ||
1736 | scan_const does *not* construct ops to handle interpolated strings. | |
1737 | It stops processing as soon as it finds an embedded $ or @ variable | |
1738 | and leaves it to the caller to work out what's going on. | |
1739 | ||
94def140 TS |
1740 | embedded arrays (whether in pattern or not) could be: |
1741 | @foo, @::foo, @'foo, @{foo}, @$foo, @+, @-. | |
1742 | ||
1743 | $ in double-quoted strings must be the symbol of an embedded scalar. | |
02aa26ce NT |
1744 | |
1745 | $ in pattern could be $foo or could be tail anchor. Assumption: | |
1746 | it's a tail anchor if $ is the last thing in the string, or if it's | |
94def140 | 1747 | followed by one of "()| \r\n\t" |
02aa26ce NT |
1748 | |
1749 | \1 (backreferences) are turned into $1 | |
1750 | ||
1751 | The structure of the code is | |
1752 | while (there's a character to process) { | |
94def140 TS |
1753 | handle transliteration ranges |
1754 | skip regexp comments /(?#comment)/ and codes /(?{code})/ | |
1755 | skip #-initiated comments in //x patterns | |
1756 | check for embedded arrays | |
02aa26ce NT |
1757 | check for embedded scalars |
1758 | if (backslash) { | |
94def140 TS |
1759 | leave intact backslashes from leaveit (below) |
1760 | deprecate \1 in substitution replacements | |
02aa26ce NT |
1761 | handle string-changing backslashes \l \U \Q \E, etc. |
1762 | switch (what was escaped) { | |
94def140 TS |
1763 | handle \- in a transliteration (becomes a literal -) |
1764 | handle \132 (octal characters) | |
1765 | handle \x15 and \x{1234} (hex characters) | |
1766 | handle \N{name} (named characters) | |
1767 | handle \cV (control characters) | |
1768 | handle printf-style backslashes (\f, \r, \n, etc) | |
02aa26ce NT |
1769 | } (end switch) |
1770 | } (end if backslash) | |
1771 | } (end while character to read) | |
4e553d73 | 1772 | |
02aa26ce NT |
1773 | */ |
1774 | ||
76e3520e | 1775 | STATIC char * |
cea2e8a9 | 1776 | S_scan_const(pTHX_ char *start) |
79072805 | 1777 | { |
97aff369 | 1778 | dVAR; |
3280af22 | 1779 | register char *send = PL_bufend; /* end of the constant */ |
561b68a9 | 1780 | SV *sv = newSV(send - start); /* sv for the constant */ |
02aa26ce NT |
1781 | register char *s = start; /* start of the constant */ |
1782 | register char *d = SvPVX(sv); /* destination for copies */ | |
1783 | bool dorange = FALSE; /* are we in a translit range? */ | |
c2e66d9e | 1784 | bool didrange = FALSE; /* did we just finish a range? */ |
2b9d42f0 NIS |
1785 | I32 has_utf8 = FALSE; /* Output constant is UTF8 */ |
1786 | I32 this_utf8 = UTF; /* The source string is assumed to be UTF8 */ | |
012bcf8d | 1787 | UV uv; |
4c3a8340 TS |
1788 | #ifdef EBCDIC |
1789 | UV literal_endpoint = 0; | |
e294cc5d | 1790 | bool native_range = TRUE; /* turned to FALSE if the first endpoint is Unicode. */ |
4c3a8340 | 1791 | #endif |
012bcf8d | 1792 | |
2b9d42f0 NIS |
1793 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
1794 | /* If we are doing a trans and we know we want UTF8 set expectation */ | |
1795 | has_utf8 = PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF); | |
1796 | this_utf8 = PL_sublex_info.sub_op->op_private & (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
1797 | } | |
1798 | ||
1799 | ||
79072805 | 1800 | while (s < send || dorange) { |
02aa26ce | 1801 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 1802 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 1803 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 1804 | if (dorange) { |
1ba5c669 JH |
1805 | I32 i; /* current expanded character */ |
1806 | I32 min; /* first character in range */ | |
1807 | I32 max; /* last character in range */ | |
02aa26ce | 1808 | |
e294cc5d JH |
1809 | #ifdef EBCDIC |
1810 | UV uvmax = 0; | |
1811 | #endif | |
1812 | ||
1813 | if (has_utf8 | |
1814 | #ifdef EBCDIC | |
1815 | && !native_range | |
1816 | #endif | |
1817 | ) { | |
9d4ba2ae | 1818 | char * const c = (char*)utf8_hop((U8*)d, -1); |
8973db79 JH |
1819 | char *e = d++; |
1820 | while (e-- > c) | |
1821 | *(e + 1) = *e; | |
25716404 | 1822 | *c = (char)UTF_TO_NATIVE(0xff); |
8973db79 JH |
1823 | /* mark the range as done, and continue */ |
1824 | dorange = FALSE; | |
1825 | didrange = TRUE; | |
1826 | continue; | |
1827 | } | |
2b9d42f0 | 1828 | |
95a20fc0 | 1829 | i = d - SvPVX_const(sv); /* remember current offset */ |
e294cc5d JH |
1830 | #ifdef EBCDIC |
1831 | SvGROW(sv, | |
1832 | SvLEN(sv) + (has_utf8 ? | |
1833 | (512 - UTF_CONTINUATION_MARK + | |
1834 | UNISKIP(0x100)) | |
1835 | : 256)); | |
1836 | /* How many two-byte within 0..255: 128 in UTF-8, | |
1837 | * 96 in UTF-8-mod. */ | |
1838 | #else | |
9cbb5ea2 | 1839 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
e294cc5d | 1840 | #endif |
9cbb5ea2 | 1841 | d = SvPVX(sv) + i; /* refresh d after realloc */ |
e294cc5d JH |
1842 | #ifdef EBCDIC |
1843 | if (has_utf8) { | |
1844 | int j; | |
1845 | for (j = 0; j <= 1; j++) { | |
1846 | char * const c = (char*)utf8_hop((U8*)d, -1); | |
1847 | const UV uv = utf8n_to_uvchr((U8*)c, d - c, NULL, 0); | |
1848 | if (j) | |
1849 | min = (U8)uv; | |
1850 | else if (uv < 256) | |
1851 | max = (U8)uv; | |
1852 | else { | |
1853 | max = (U8)0xff; /* only to \xff */ | |
1854 | uvmax = uv; /* \x{100} to uvmax */ | |
1855 | } | |
1856 | d = c; /* eat endpoint chars */ | |
1857 | } | |
1858 | } | |
1859 | else { | |
1860 | #endif | |
1861 | d -= 2; /* eat the first char and the - */ | |
1862 | min = (U8)*d; /* first char in range */ | |
1863 | max = (U8)d[1]; /* last char in range */ | |
1864 | #ifdef EBCDIC | |
1865 | } | |
1866 | #endif | |
8ada0baa | 1867 | |
c2e66d9e | 1868 | if (min > max) { |
01ec43d0 | 1869 | Perl_croak(aTHX_ |
d1573ac7 | 1870 | "Invalid range \"%c-%c\" in transliteration operator", |
1ba5c669 | 1871 | (char)min, (char)max); |
c2e66d9e GS |
1872 | } |
1873 | ||
c7f1f016 | 1874 | #ifdef EBCDIC |
4c3a8340 TS |
1875 | if (literal_endpoint == 2 && |
1876 | ((isLOWER(min) && isLOWER(max)) || | |
1877 | (isUPPER(min) && isUPPER(max)))) { | |
8ada0baa JH |
1878 | if (isLOWER(min)) { |
1879 | for (i = min; i <= max; i++) | |
1880 | if (isLOWER(i)) | |
db42d148 | 1881 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1882 | } else { |
1883 | for (i = min; i <= max; i++) | |
1884 | if (isUPPER(i)) | |
db42d148 | 1885 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1886 | } |
1887 | } | |
1888 | else | |
1889 | #endif | |
1890 | for (i = min; i <= max; i++) | |
e294cc5d JH |
1891 | #ifdef EBCDIC |
1892 | if (has_utf8) { | |
1893 | const U8 ch = (U8)NATIVE_TO_UTF(i); | |
1894 | if (UNI_IS_INVARIANT(ch)) | |
1895 | *d++ = (U8)i; | |
1896 | else { | |
1897 | *d++ = (U8)UTF8_EIGHT_BIT_HI(ch); | |
1898 | *d++ = (U8)UTF8_EIGHT_BIT_LO(ch); | |
1899 | } | |
1900 | } | |
1901 | else | |
1902 | #endif | |
1903 | *d++ = (char)i; | |
1904 | ||
1905 | #ifdef EBCDIC | |
1906 | if (uvmax) { | |
1907 | d = (char*)uvchr_to_utf8((U8*)d, 0x100); | |
1908 | if (uvmax > 0x101) | |
1909 | *d++ = (char)UTF_TO_NATIVE(0xff); | |
1910 | if (uvmax > 0x100) | |
1911 | d = (char*)uvchr_to_utf8((U8*)d, uvmax); | |
1912 | } | |
1913 | #endif | |
02aa26ce NT |
1914 | |
1915 | /* mark the range as done, and continue */ | |
79072805 | 1916 | dorange = FALSE; |
01ec43d0 | 1917 | didrange = TRUE; |
4c3a8340 TS |
1918 | #ifdef EBCDIC |
1919 | literal_endpoint = 0; | |
1920 | #endif | |
79072805 | 1921 | continue; |
4e553d73 | 1922 | } |
02aa26ce NT |
1923 | |
1924 | /* range begins (ignore - as first or last char) */ | |
79072805 | 1925 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 1926 | if (didrange) { |
1fafa243 | 1927 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 1928 | } |
e294cc5d JH |
1929 | if (has_utf8 |
1930 | #ifdef EBCDIC | |
1931 | && !native_range | |
1932 | #endif | |
1933 | ) { | |
25716404 | 1934 | *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
1935 | s++; |
1936 | continue; | |
1937 | } | |
79072805 LW |
1938 | dorange = TRUE; |
1939 | s++; | |
01ec43d0 GS |
1940 | } |
1941 | else { | |
1942 | didrange = FALSE; | |
4c3a8340 TS |
1943 | #ifdef EBCDIC |
1944 | literal_endpoint = 0; | |
e294cc5d | 1945 | native_range = TRUE; |
4c3a8340 | 1946 | #endif |
01ec43d0 | 1947 | } |
79072805 | 1948 | } |
02aa26ce NT |
1949 | |
1950 | /* if we get here, we're not doing a transliteration */ | |
1951 | ||
0f5d15d6 IZ |
1952 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
1953 | except for the last char, which will be done separately. */ | |
3280af22 | 1954 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 | 1955 | if (s[2] == '#') { |
e994fd66 | 1956 | while (s+1 < send && *s != ')') |
db42d148 | 1957 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
155aba94 GS |
1958 | } |
1959 | else if (s[2] == '{' /* This should match regcomp.c */ | |
1960 | || ((s[2] == 'p' || s[2] == '?') && s[3] == '{')) | |
1961 | { | |
cc6b7395 | 1962 | I32 count = 1; |
0f5d15d6 | 1963 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
1964 | char c; |
1965 | ||
d9f97599 GS |
1966 | while (count && (c = *regparse)) { |
1967 | if (c == '\\' && regparse[1]) | |
1968 | regparse++; | |
4e553d73 | 1969 | else if (c == '{') |
cc6b7395 | 1970 | count++; |
4e553d73 | 1971 | else if (c == '}') |
cc6b7395 | 1972 | count--; |
d9f97599 | 1973 | regparse++; |
cc6b7395 | 1974 | } |
e994fd66 | 1975 | if (*regparse != ')') |
5bdf89e7 | 1976 | regparse--; /* Leave one char for continuation. */ |
0f5d15d6 | 1977 | while (s < regparse) |
db42d148 | 1978 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
cc6b7395 | 1979 | } |
748a9306 | 1980 | } |
02aa26ce NT |
1981 | |
1982 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
1983 | else if (*s == '#' && PL_lex_inpat && |
1984 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 | 1985 | while (s+1 < send && *s != '\n') |
db42d148 | 1986 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
748a9306 | 1987 | } |
02aa26ce | 1988 | |
5d1d4326 | 1989 | /* check for embedded arrays |
da6eedaa | 1990 | (@foo, @::foo, @'foo, @{foo}, @$foo, @+, @-) |
5d1d4326 | 1991 | */ |
1749ea0d TS |
1992 | else if (*s == '@' && s[1]) { |
1993 | if (isALNUM_lazy_if(s+1,UTF)) | |
1994 | break; | |
1995 | if (strchr(":'{$", s[1])) | |
1996 | break; | |
1997 | if (!PL_lex_inpat && (s[1] == '+' || s[1] == '-')) | |
1998 | break; /* in regexp, neither @+ nor @- are interpolated */ | |
1999 | } | |
02aa26ce NT |
2000 | |
2001 | /* check for embedded scalars. only stop if we're sure it's a | |
2002 | variable. | |
2003 | */ | |
79072805 | 2004 | else if (*s == '$') { |
3280af22 | 2005 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 2006 | break; |
6002328a | 2007 | if (s + 1 < send && !strchr("()| \r\n\t", s[1])) |
79072805 LW |
2008 | break; /* in regexp, $ might be tail anchor */ |
2009 | } | |
02aa26ce | 2010 | |
2b9d42f0 NIS |
2011 | /* End of else if chain - OP_TRANS rejoin rest */ |
2012 | ||
02aa26ce | 2013 | /* backslashes */ |
79072805 LW |
2014 | if (*s == '\\' && s+1 < send) { |
2015 | s++; | |
02aa26ce | 2016 | |
02aa26ce | 2017 | /* deprecate \1 in strings and substitution replacements */ |
3280af22 | 2018 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 2019 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 2020 | { |
599cee73 | 2021 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 2022 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s); |
79072805 LW |
2023 | *--s = '$'; |
2024 | break; | |
2025 | } | |
02aa26ce NT |
2026 | |
2027 | /* string-change backslash escapes */ | |
3280af22 | 2028 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
2029 | --s; |
2030 | break; | |
2031 | } | |
cc74c5bd TS |
2032 | /* skip any other backslash escapes in a pattern */ |
2033 | else if (PL_lex_inpat) { | |
2034 | *d++ = NATIVE_TO_NEED(has_utf8,'\\'); | |
2035 | goto default_action; | |
2036 | } | |
02aa26ce NT |
2037 | |
2038 | /* if we get here, it's either a quoted -, or a digit */ | |
79072805 | 2039 | switch (*s) { |
02aa26ce NT |
2040 | |
2041 | /* quoted - in transliterations */ | |
79072805 | 2042 | case '-': |
3280af22 | 2043 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
2044 | *d++ = *s++; |
2045 | continue; | |
2046 | } | |
2047 | /* FALL THROUGH */ | |
2048 | default: | |
11b8faa4 | 2049 | { |
86f97054 | 2050 | if ((isALPHA(*s) || isDIGIT(*s)) && |
041457d9 | 2051 | ckWARN(WARN_MISC)) |
9014280d | 2052 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
e294cc5d JH |
2053 | "Unrecognized escape \\%c passed through", |
2054 | *s); | |
11b8faa4 | 2055 | /* default action is to copy the quoted character */ |
f9a63242 | 2056 | goto default_action; |
11b8faa4 | 2057 | } |
02aa26ce NT |
2058 | |
2059 | /* \132 indicates an octal constant */ | |
79072805 LW |
2060 | case '0': case '1': case '2': case '3': |
2061 | case '4': case '5': case '6': case '7': | |
ba210ebe | 2062 | { |
53305cf1 NC |
2063 | I32 flags = 0; |
2064 | STRLEN len = 3; | |
2065 | uv = grok_oct(s, &len, &flags, NULL); | |
ba210ebe JH |
2066 | s += len; |
2067 | } | |
012bcf8d | 2068 | goto NUM_ESCAPE_INSERT; |
02aa26ce NT |
2069 | |
2070 | /* \x24 indicates a hex constant */ | |
79072805 | 2071 | case 'x': |
a0ed51b3 LW |
2072 | ++s; |
2073 | if (*s == '{') { | |
9d4ba2ae | 2074 | char* const e = strchr(s, '}'); |
a4c04bdc NC |
2075 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
2076 | PERL_SCAN_DISALLOW_PREFIX; | |
53305cf1 | 2077 | STRLEN len; |
355860ce | 2078 | |
53305cf1 | 2079 | ++s; |
adaeee49 | 2080 | if (!e) { |
a0ed51b3 | 2081 | yyerror("Missing right brace on \\x{}"); |
355860ce | 2082 | continue; |
ba210ebe | 2083 | } |
53305cf1 NC |
2084 | len = e - s; |
2085 | uv = grok_hex(s, &len, &flags, NULL); | |
ba210ebe | 2086 | s = e + 1; |
a0ed51b3 LW |
2087 | } |
2088 | else { | |
ba210ebe | 2089 | { |
53305cf1 | 2090 | STRLEN len = 2; |
a4c04bdc | 2091 | I32 flags = PERL_SCAN_DISALLOW_PREFIX; |
53305cf1 | 2092 | uv = grok_hex(s, &len, &flags, NULL); |
ba210ebe JH |
2093 | s += len; |
2094 | } | |
012bcf8d GS |
2095 | } |
2096 | ||
2097 | NUM_ESCAPE_INSERT: | |
2098 | /* Insert oct or hex escaped character. | |
301d3d20 | 2099 | * There will always enough room in sv since such |
db42d148 | 2100 | * escapes will be longer than any UTF-8 sequence |
301d3d20 | 2101 | * they can end up as. */ |
ba7cea30 | 2102 | |
c7f1f016 NIS |
2103 | /* We need to map to chars to ASCII before doing the tests |
2104 | to cover EBCDIC | |
2105 | */ | |
c4d5f83a | 2106 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(uv))) { |
9aa983d2 | 2107 | if (!has_utf8 && uv > 255) { |
301d3d20 JH |
2108 | /* Might need to recode whatever we have |
2109 | * accumulated so far if it contains any | |
2110 | * hibit chars. | |
2111 | * | |
2112 | * (Can't we keep track of that and avoid | |
2113 | * this rescan? --jhi) | |
012bcf8d | 2114 | */ |
c7f1f016 | 2115 | int hicount = 0; |
63cd0674 NIS |
2116 | U8 *c; |
2117 | for (c = (U8 *) SvPVX(sv); c < (U8 *)d; c++) { | |
c4d5f83a | 2118 | if (!NATIVE_IS_INVARIANT(*c)) { |
012bcf8d | 2119 | hicount++; |
db42d148 | 2120 | } |
012bcf8d | 2121 | } |
63cd0674 | 2122 | if (hicount) { |
9d4ba2ae | 2123 | const STRLEN offset = d - SvPVX_const(sv); |
db42d148 NIS |
2124 | U8 *src, *dst; |
2125 | d = SvGROW(sv, SvLEN(sv) + hicount + 1) + offset; | |
2126 | src = (U8 *)d - 1; | |
2127 | dst = src+hicount; | |
2128 | d += hicount; | |
cfd0369c | 2129 | while (src >= (const U8 *)SvPVX_const(sv)) { |
c4d5f83a | 2130 | if (!NATIVE_IS_INVARIANT(*src)) { |
9d4ba2ae | 2131 | const U8 ch = NATIVE_TO_ASCII(*src); |
eb160463 GS |
2132 | *dst-- = (U8)UTF8_EIGHT_BIT_LO(ch); |
2133 | *dst-- = (U8)UTF8_EIGHT_BIT_HI(ch); | |
012bcf8d GS |
2134 | } |
2135 | else { | |
63cd0674 | 2136 | *dst-- = *src; |
012bcf8d | 2137 | } |
c7f1f016 | 2138 | src--; |
012bcf8d GS |
2139 | } |
2140 | } | |
2141 | } | |
2142 | ||
9aa983d2 | 2143 | if (has_utf8 || uv > 255) { |
9041c2e3 | 2144 | d = (char*)uvchr_to_utf8((U8*)d, uv); |
4e553d73 | 2145 | has_utf8 = TRUE; |
f9a63242 JH |
2146 | if (PL_lex_inwhat == OP_TRANS && |
2147 | PL_sublex_info.sub_op) { | |
2148 | PL_sublex_info.sub_op->op_private |= | |
2149 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
2150 | : OPpTRANS_TO_UTF); | |
f9a63242 | 2151 | } |
e294cc5d JH |
2152 | #ifdef EBCDIC |
2153 | if (uv > 255 && !dorange) | |
2154 | native_range = FALSE; | |
2155 | #endif | |
012bcf8d | 2156 | } |
a0ed51b3 | 2157 | else { |
012bcf8d | 2158 | *d++ = (char)uv; |
a0ed51b3 | 2159 | } |
012bcf8d GS |
2160 | } |
2161 | else { | |
c4d5f83a | 2162 | *d++ = (char) uv; |
a0ed51b3 | 2163 | } |
79072805 | 2164 | continue; |
02aa26ce | 2165 | |
b239daa5 | 2166 | /* \N{LATIN SMALL LETTER A} is a named character */ |
4a2d328f | 2167 | case 'N': |
55eda711 | 2168 | ++s; |
423cee85 JH |
2169 | if (*s == '{') { |
2170 | char* e = strchr(s, '}'); | |
155aba94 | 2171 | SV *res; |
423cee85 | 2172 | STRLEN len; |
cfd0369c | 2173 | const char *str; |
fc8cd66c | 2174 | SV *type; |
4e553d73 | 2175 | |
423cee85 | 2176 | if (!e) { |
5777a3f7 | 2177 | yyerror("Missing right brace on \\N{}"); |
423cee85 JH |
2178 | e = s - 1; |
2179 | goto cont_scan; | |
2180 | } | |
dbc0d4f2 JH |
2181 | if (e > s + 2 && s[1] == 'U' && s[2] == '+') { |
2182 | /* \N{U+...} */ | |
2183 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | | |
2184 | PERL_SCAN_DISALLOW_PREFIX; | |
2185 | s += 3; | |
2186 | len = e - s; | |
2187 | uv = grok_hex(s, &len, &flags, NULL); | |
b57a0404 JH |
2188 | if ( e > s && len != (STRLEN)(e - s) ) { |
2189 | uv = 0xFFFD; | |
fc8cd66c | 2190 | } |
dbc0d4f2 JH |
2191 | s = e + 1; |
2192 | goto NUM_ESCAPE_INSERT; | |
2193 | } | |
55eda711 | 2194 | res = newSVpvn(s + 1, e - s - 1); |
fc8cd66c | 2195 | type = newSVpvn(s - 2,e - s + 3); |
bd61b366 | 2196 | res = new_constant( NULL, 0, "charnames", |
fc8cd66c YO |
2197 | res, NULL, SvPVX(type) ); |
2198 | SvREFCNT_dec(type); | |
f9a63242 JH |
2199 | if (has_utf8) |
2200 | sv_utf8_upgrade(res); | |
cfd0369c | 2201 | str = SvPV_const(res,len); |
1c47067b JH |
2202 | #ifdef EBCDIC_NEVER_MIND |
2203 | /* charnames uses pack U and that has been | |
2204 | * recently changed to do the below uni->native | |
2205 | * mapping, so this would be redundant (and wrong, | |
2206 | * the code point would be doubly converted). | |
2207 | * But leave this in just in case the pack U change | |
2208 | * gets revoked, but the semantics is still | |
2209 | * desireable for charnames. --jhi */ | |
cddc7ef4 | 2210 | { |
cfd0369c | 2211 | UV uv = utf8_to_uvchr((const U8*)str, 0); |
cddc7ef4 JH |
2212 | |
2213 | if (uv < 0x100) { | |
89ebb4a3 | 2214 | U8 tmpbuf[UTF8_MAXBYTES+1], *d; |
cddc7ef4 JH |
2215 | |
2216 | d = uvchr_to_utf8(tmpbuf, UNI_TO_NATIVE(uv)); | |
2217 | sv_setpvn(res, (char *)tmpbuf, d - tmpbuf); | |
cfd0369c | 2218 | str = SvPV_const(res, len); |
cddc7ef4 JH |
2219 | } |
2220 | } | |
2221 | #endif | |
89491803 | 2222 | if (!has_utf8 && SvUTF8(res)) { |
9d4ba2ae | 2223 | const char * const ostart = SvPVX_const(sv); |
f08d6ad9 GS |
2224 | SvCUR_set(sv, d - ostart); |
2225 | SvPOK_on(sv); | |
e4f3eed8 | 2226 | *d = '\0'; |
f08d6ad9 | 2227 | sv_utf8_upgrade(sv); |
d2f449dd | 2228 | /* this just broke our allocation above... */ |
eb160463 | 2229 | SvGROW(sv, (STRLEN)(send - start)); |
f08d6ad9 | 2230 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 2231 | has_utf8 = TRUE; |
f08d6ad9 | 2232 | } |
eb160463 | 2233 | if (len > (STRLEN)(e - s + 4)) { /* I _guess_ 4 is \N{} --jhi */ |
9d4ba2ae | 2234 | const char * const odest = SvPVX_const(sv); |
423cee85 | 2235 | |
8973db79 | 2236 | SvGROW(sv, (SvLEN(sv) + len - (e - s + 4))); |
423cee85 JH |
2237 | d = SvPVX(sv) + (d - odest); |
2238 | } | |
e294cc5d JH |
2239 | #ifdef EBCDIC |
2240 | if (!dorange) | |
2241 | native_range = FALSE; /* \N{} is guessed to be Unicode */ | |
2242 | #endif | |
423cee85 JH |
2243 | Copy(str, d, len, char); |
2244 | d += len; | |
2245 | SvREFCNT_dec(res); | |
2246 | cont_scan: | |
2247 | s = e + 1; | |
2248 | } | |
2249 | else | |
5777a3f7 | 2250 | yyerror("Missing braces on \\N{}"); |
423cee85 JH |
2251 | continue; |
2252 | ||
02aa26ce | 2253 | /* \c is a control character */ |
79072805 LW |
2254 | case 'c': |
2255 | s++; | |
961ce445 | 2256 | if (s < send) { |
ba210ebe | 2257 | U8 c = *s++; |
c7f1f016 NIS |
2258 | #ifdef EBCDIC |
2259 | if (isLOWER(c)) | |
2260 | c = toUPPER(c); | |
2261 | #endif | |
db42d148 | 2262 | *d++ = NATIVE_TO_NEED(has_utf8,toCTRL(c)); |
ba210ebe | 2263 | } |
961ce445 RGS |
2264 | else { |
2265 | yyerror("Missing control char name in \\c"); | |
2266 | } | |
79072805 | 2267 | continue; |
02aa26ce NT |
2268 | |
2269 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 | 2270 | case 'b': |
db42d148 | 2271 | *d++ = NATIVE_TO_NEED(has_utf8,'\b'); |
79072805 LW |
2272 | break; |
2273 | case 'n': | |
db42d148 | 2274 | *d++ = NATIVE_TO_NEED(has_utf8,'\n'); |
79072805 LW |
2275 | break; |
2276 | case 'r': | |
db42d148 | 2277 | *d++ = NATIVE_TO_NEED(has_utf8,'\r'); |
79072805 LW |
2278 | break; |
2279 | case 'f': | |
db42d148 | 2280 | *d++ = NATIVE_TO_NEED(has_utf8,'\f'); |
79072805 LW |
2281 | break; |
2282 | case 't': | |
db42d148 | 2283 | *d++ = NATIVE_TO_NEED(has_utf8,'\t'); |
79072805 | 2284 | break; |
34a3fe2a | 2285 | case 'e': |
db42d148 | 2286 | *d++ = ASCII_TO_NEED(has_utf8,'\033'); |
34a3fe2a PP |
2287 | break; |
2288 | case 'a': | |
db42d148 | 2289 | *d++ = ASCII_TO_NEED(has_utf8,'\007'); |
79072805 | 2290 | break; |
02aa26ce NT |
2291 | } /* end switch */ |
2292 | ||
79072805 LW |
2293 | s++; |
2294 | continue; | |
02aa26ce | 2295 | } /* end if (backslash) */ |
4c3a8340 TS |
2296 | #ifdef EBCDIC |
2297 | else | |
2298 | literal_endpoint++; | |
2299 | #endif | |
02aa26ce | 2300 | |
f9a63242 | 2301 | default_action: |
2b9d42f0 NIS |
2302 | /* If we started with encoded form, or already know we want it |
2303 | and then encode the next character */ | |
2304 | if ((has_utf8 || this_utf8) && !NATIVE_IS_INVARIANT((U8)(*s))) { | |
2305 | STRLEN len = 1; | |
5f66b61c AL |
2306 | const UV nextuv = (this_utf8) ? utf8n_to_uvchr((U8*)s, send - s, &len, 0) : (UV) ((U8) *s); |
2307 | const STRLEN need = UNISKIP(NATIVE_TO_UNI(nextuv)); | |
2b9d42f0 NIS |
2308 | s += len; |
2309 | if (need > len) { | |
2310 | /* encoded value larger than old, need extra space (NOTE: SvCUR() not set here) */ | |
9d4ba2ae | 2311 | const STRLEN off = d - SvPVX_const(sv); |
2b9d42f0 NIS |
2312 | d = SvGROW(sv, SvLEN(sv) + (need-len)) + off; |
2313 | } | |
5f66b61c | 2314 | d = (char*)uvchr_to_utf8((U8*)d, nextuv); |
2b9d42f0 | 2315 | has_utf8 = TRUE; |
e294cc5d JH |
2316 | #ifdef EBCDIC |
2317 | if (uv > 255 && !dorange) | |
2318 | native_range = FALSE; | |
2319 | #endif | |
2b9d42f0 NIS |
2320 | } |
2321 | else { | |
2322 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
2323 | } | |
02aa26ce NT |
2324 | } /* while loop to process each character */ |
2325 | ||
2326 | /* terminate the string and set up the sv */ | |
79072805 | 2327 | *d = '\0'; |
95a20fc0 | 2328 | SvCUR_set(sv, d - SvPVX_const(sv)); |
2b9d42f0 | 2329 | if (SvCUR(sv) >= SvLEN(sv)) |
d0063567 | 2330 | Perl_croak(aTHX_ "panic: constant overflowed allocated space"); |
2b9d42f0 | 2331 | |
79072805 | 2332 | SvPOK_on(sv); |
9f4817db | 2333 | if (PL_encoding && !has_utf8) { |
d0063567 DK |
2334 | sv_recode_to_utf8(sv, PL_encoding); |
2335 | if (SvUTF8(sv)) | |
2336 | has_utf8 = TRUE; | |
9f4817db | 2337 | } |
2b9d42f0 | 2338 | if (has_utf8) { |
7e2040f0 | 2339 | SvUTF8_on(sv); |
2b9d42f0 | 2340 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
d0063567 | 2341 | PL_sublex_info.sub_op->op_private |= |
2b9d42f0 NIS |
2342 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); |
2343 | } | |
2344 | } | |
79072805 | 2345 | |
02aa26ce | 2346 | /* shrink the sv if we allocated more than we used */ |
79072805 | 2347 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
1da4ca5f | 2348 | SvPV_shrink_to_cur(sv); |
79072805 | 2349 | } |
02aa26ce | 2350 | |
9b599b2a | 2351 | /* return the substring (via yylval) only if we parsed anything */ |
3280af22 NIS |
2352 | if (s > PL_bufptr) { |
2353 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) | |
10edeb5d JH |
2354 | sv = new_constant(start, s - start, |
2355 | (const char *)(PL_lex_inpat ? "qr" : "q"), | |
a0714e2c | 2356 | sv, NULL, |
10edeb5d JH |
2357 | (const char *) |
2358 | (( PL_lex_inwhat == OP_TRANS | |
2359 | ? "tr" | |
2360 | : ( (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) | |
2361 | ? "s" | |
2362 | : "qq")))); | |
79072805 | 2363 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 2364 | } else |
8990e307 | 2365 | SvREFCNT_dec(sv); |
79072805 LW |
2366 | return s; |
2367 | } | |
2368 | ||
ffb4593c NT |
2369 | /* S_intuit_more |
2370 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
2371 | * FALSE otherwise. | |
ffb4593c NT |
2372 | * |
2373 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
2374 | * | |
2375 | * ->[ and ->{ return TRUE | |
2376 | * { and [ outside a pattern are always subscripts, so return TRUE | |
2377 | * if we're outside a pattern and it's not { or [, then return FALSE | |
2378 | * if we're in a pattern and the first char is a { | |
2379 | * {4,5} (any digits around the comma) returns FALSE | |
2380 | * if we're in a pattern and the first char is a [ | |
2381 | * [] returns FALSE | |
2382 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
2383 | * character class or not. It has to deal with things like | |
2384 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
2385 | * anything else returns TRUE | |
2386 | */ | |
2387 | ||
9cbb5ea2 GS |
2388 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
2389 | ||
76e3520e | 2390 | STATIC int |
cea2e8a9 | 2391 | S_intuit_more(pTHX_ register char *s) |
79072805 | 2392 | { |
97aff369 | 2393 | dVAR; |
3280af22 | 2394 | if (PL_lex_brackets) |
79072805 LW |
2395 | return TRUE; |
2396 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
2397 | return TRUE; | |
2398 | if (*s != '{' && *s != '[') | |
2399 | return FALSE; | |
3280af22 | 2400 | if (!PL_lex_inpat) |
79072805 LW |
2401 | return TRUE; |
2402 | ||
2403 | /* In a pattern, so maybe we have {n,m}. */ | |
2404 | if (*s == '{') { | |
2405 | s++; | |
2406 | if (!isDIGIT(*s)) | |
2407 | return TRUE; | |
2408 | while (isDIGIT(*s)) | |
2409 | s++; | |
2410 | if (*s == ',') | |
2411 | s++; | |
2412 | while (isDIGIT(*s)) | |
2413 | s++; | |
2414 | if (*s == '}') | |
2415 | return FALSE; | |
2416 | return TRUE; | |
2417 | ||
2418 | } | |
2419 | ||
2420 | /* On the other hand, maybe we have a character class */ | |
2421 | ||
2422 | s++; | |
2423 | if (*s == ']' || *s == '^') | |
2424 | return FALSE; | |
2425 | else { | |
ffb4593c | 2426 | /* this is terrifying, and it works */ |
79072805 LW |
2427 | int weight = 2; /* let's weigh the evidence */ |
2428 | char seen[256]; | |
f27ffc4a | 2429 | unsigned char un_char = 255, last_un_char; |
9d4ba2ae | 2430 | const char * const send = strchr(s,']'); |
3280af22 | 2431 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
2432 | |
2433 | if (!send) /* has to be an expression */ | |
2434 | return TRUE; | |
2435 | ||
2436 | Zero(seen,256,char); | |
2437 | if (*s == '$') | |
2438 | weight -= 3; | |
2439 | else if (isDIGIT(*s)) { | |
2440 | if (s[1] != ']') { | |
2441 | if (isDIGIT(s[1]) && s[2] == ']') | |
2442 | weight -= 10; | |
2443 | } | |
2444 | else | |
2445 | weight -= 100; | |
2446 | } | |
2447 | for (; s < send; s++) { | |
2448 | last_un_char = un_char; | |
2449 | un_char = (unsigned char)*s; | |
2450 | switch (*s) { | |
2451 | case '@': | |
2452 | case '&': | |
2453 | case '$': | |
2454 | weight -= seen[un_char] * 10; | |
7e2040f0 | 2455 | if (isALNUM_lazy_if(s+1,UTF)) { |
90e5519e | 2456 | int len; |
8903cb82 | 2457 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
90e5519e NC |
2458 | len = (int)strlen(tmpbuf); |
2459 | if (len > 1 && gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PV)) | |
79072805 LW |
2460 | weight -= 100; |
2461 | else | |
2462 | weight -= 10; | |
2463 | } | |
2464 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
2465 | strchr("[#!%*<>()-=",s[1])) { |
2466 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
2467 | weight -= 10; |
2468 | else | |
2469 | weight -= 1; | |
2470 | } | |
2471 | break; | |
2472 | case '\\': | |
2473 | un_char = 254; | |
2474 | if (s[1]) { | |
93a17b20 | 2475 | if (strchr("wds]",s[1])) |
79072805 | 2476 | weight += 100; |
10edeb5d | 2477 | else if (seen[(U8)'\''] || seen[(U8)'"']) |
79072805 | 2478 | weight += 1; |
93a17b20 | 2479 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
2480 | weight += 40; |
2481 | else if (isDIGIT(s[1])) { | |
2482 | weight += 40; | |
2483 | while (s[1] && isDIGIT(s[1])) | |
2484 | s++; | |
2485 | } | |
2486 | } | |
2487 | else | |
2488 | weight += 100; | |
2489 | break; | |
2490 | case '-': | |
2491 | if (s[1] == '\\') | |
2492 | weight += 50; | |
93a17b20 | 2493 | if (strchr("aA01! ",last_un_char)) |
79072805 | 2494 | weight += 30; |
93a17b20 | 2495 | if (strchr("zZ79~",s[1])) |
79072805 | 2496 | weight += 30; |
f27ffc4a GS |
2497 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
2498 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
2499 | break; |
2500 | default: | |
3792a11b NC |
2501 | if (!isALNUM(last_un_char) |
2502 | && !(last_un_char == '$' || last_un_char == '@' | |
2503 | || last_un_char == '&') | |
2504 | && isALPHA(*s) && s[1] && isALPHA(s[1])) { | |
79072805 LW |
2505 | char *d = tmpbuf; |
2506 | while (isALPHA(*s)) | |
2507 | *d++ = *s++; | |
2508 | *d = '\0'; | |
5458a98a | 2509 | if (keyword(tmpbuf, d - tmpbuf, 0)) |
79072805 LW |
2510 | weight -= 150; |
2511 | } | |
2512 | if (un_char == last_un_char + 1) | |
2513 | weight += 5; | |
2514 | weight -= seen[un_char]; | |
2515 | break; | |
2516 | } | |
2517 | seen[un_char]++; | |
2518 | } | |
2519 | if (weight >= 0) /* probably a character class */ | |
2520 | return FALSE; | |
2521 | } | |
2522 | ||
2523 | return TRUE; | |
2524 | } | |
ffed7fef | 2525 | |
ffb4593c NT |
2526 | /* |
2527 | * S_intuit_method | |
2528 | * | |
2529 | * Does all the checking to disambiguate | |
2530 | * foo bar | |
2531 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
2532 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
2533 | * | |
2534 | * First argument is the stuff after the first token, e.g. "bar". | |
2535 | * | |
2536 | * Not a method if bar is a filehandle. | |
2537 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
2538 | * Not a method if it's really "Foo $bar" | |
2539 | * Method if it's "foo $bar" | |
2540 | * Not a method if it's really "print foo $bar" | |
2541 | * Method if it's really "foo package::" (interpreted as package->foo) | |
8f8cf39c | 2542 | * Not a method if bar is known to be a subroutine ("sub bar; foo bar") |
3cb0bbe5 | 2543 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
2544 | * => |
2545 | */ | |
2546 | ||
76e3520e | 2547 | STATIC int |
62d55b22 | 2548 | S_intuit_method(pTHX_ char *start, GV *gv, CV *cv) |
a0d0e21e | 2549 | { |
97aff369 | 2550 | dVAR; |
a0d0e21e | 2551 | char *s = start + (*start == '$'); |
3280af22 | 2552 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
2553 | STRLEN len; |
2554 | GV* indirgv; | |
5db06880 NC |
2555 | #ifdef PERL_MAD |
2556 | int soff; | |
2557 | #endif | |
a0d0e21e LW |
2558 | |
2559 | if (gv) { | |
62d55b22 | 2560 | if (SvTYPE(gv) == SVt_PVGV && GvIO(gv)) |
a0d0e21e | 2561 | return 0; |
62d55b22 NC |
2562 | if (cv) { |
2563 | if (SvPOK(cv)) { | |
2564 | const char *proto = SvPVX_const(cv); | |
2565 | if (proto) { | |
2566 | if (*proto == ';') | |
2567 | proto++; | |
2568 | if (*proto == '*') | |
2569 | return 0; | |
2570 | } | |
b6c543e3 IZ |
2571 | } |
2572 | } else | |
c35e046a | 2573 | gv = NULL; |
a0d0e21e | 2574 | } |
8903cb82 | 2575 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
2576 | /* start is the beginning of the possible filehandle/object, |
2577 | * and s is the end of it | |
2578 | * tmpbuf is a copy of it | |
2579 | */ | |
2580 | ||
a0d0e21e | 2581 | if (*start == '$') { |
3280af22 | 2582 | if (gv || PL_last_lop_op == OP_PRINT || isUPPER(*PL_tokenbuf)) |
a0d0e21e | 2583 | return 0; |
5db06880 NC |
2584 | #ifdef PERL_MAD |
2585 | len = start - SvPVX(PL_linestr); | |
2586 | #endif | |
29595ff2 | 2587 | s = PEEKSPACE(s); |
f0092767 | 2588 | #ifdef PERL_MAD |
5db06880 NC |
2589 | start = SvPVX(PL_linestr) + len; |
2590 | #endif | |
3280af22 NIS |
2591 | PL_bufptr = start; |
2592 | PL_expect = XREF; | |
a0d0e21e LW |
2593 | return *s == '(' ? FUNCMETH : METHOD; |
2594 | } | |
5458a98a | 2595 | if (!keyword(tmpbuf, len, 0)) { |
c3e0f903 GS |
2596 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
2597 | len -= 2; | |
2598 | tmpbuf[len] = '\0'; | |
5db06880 NC |
2599 | #ifdef PERL_MAD |
2600 | soff = s - SvPVX(PL_linestr); | |
2601 | #endif | |
c3e0f903 GS |
2602 | goto bare_package; |
2603 | } | |
90e5519e | 2604 | indirgv = gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PVCV); |
8ebc5c01 | 2605 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
2606 | return 0; |
2607 | /* filehandle or package name makes it a method */ | |
89bfa8cd | 2608 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) { |
5db06880 NC |
2609 | #ifdef PERL_MAD |
2610 | soff = s - SvPVX(PL_linestr); | |
2611 | #endif | |
29595ff2 | 2612 | s = PEEKSPACE(s); |
3280af22 | 2613 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 2614 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 2615 | bare_package: |
cd81e915 | 2616 | start_force(PL_curforce); |
9ded7720 | 2617 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, |
79cb57f6 | 2618 | newSVpvn(tmpbuf,len)); |
9ded7720 | 2619 | NEXTVAL_NEXTTOKE.opval->op_private = OPpCONST_BARE; |
5db06880 NC |
2620 | if (PL_madskills) |
2621 | curmad('X', newSVpvn(start,SvPVX(PL_linestr) + soff - start)); | |
3280af22 | 2622 | PL_expect = XTERM; |
a0d0e21e | 2623 | force_next(WORD); |
3280af22 | 2624 | PL_bufptr = s; |
5db06880 NC |
2625 | #ifdef PERL_MAD |
2626 | PL_bufptr = SvPVX(PL_linestr) + soff; /* restart before space */ | |
2627 | #endif | |
a0d0e21e LW |
2628 | return *s == '(' ? FUNCMETH : METHOD; |
2629 | } | |
2630 | } | |
2631 | return 0; | |
2632 | } | |
2633 | ||
ffb4593c NT |
2634 | /* |
2635 | * S_incl_perldb | |
2636 | * Return a string of Perl code to load the debugger. If PERL5DB | |
2637 | * is set, it will return the contents of that, otherwise a | |
2638 | * compile-time require of perl5db.pl. | |
2639 | */ | |
2640 | ||
bfed75c6 | 2641 | STATIC const char* |
cea2e8a9 | 2642 | S_incl_perldb(pTHX) |
a0d0e21e | 2643 | { |
97aff369 | 2644 | dVAR; |
3280af22 | 2645 | if (PL_perldb) { |
9d4ba2ae | 2646 | const char * const pdb = PerlEnv_getenv("PERL5DB"); |
a0d0e21e LW |
2647 | |
2648 | if (pdb) | |
2649 | return pdb; | |
93189314 | 2650 | SETERRNO(0,SS_NORMAL); |
a0d0e21e LW |
2651 | return "BEGIN { require 'perl5db.pl' }"; |
2652 | } | |
2653 | return ""; | |
2654 | } | |
2655 | ||
2656 | ||
16d20bd9 | 2657 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 2658 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
2659 | * Note that the filter function only applies to the current source file |
2660 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
2661 | * | |
2662 | * The datasv parameter (which may be NULL) can be used to pass | |
2663 | * private data to this instance of the filter. The filter function | |
2664 | * can recover the SV using the FILTER_DATA macro and use it to | |
2665 | * store private buffers and state information. | |
2666 | * | |
2667 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 2668 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 2669 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
2670 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
2671 | * private use must be set using malloc'd pointers. | |
2672 | */ | |
16d20bd9 AD |
2673 | |
2674 | SV * | |
864dbfa3 | 2675 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 2676 | { |
97aff369 | 2677 | dVAR; |
f4c556ac | 2678 | if (!funcp) |
a0714e2c | 2679 | return NULL; |
f4c556ac | 2680 | |
3280af22 NIS |
2681 | if (!PL_rsfp_filters) |
2682 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 2683 | if (!datasv) |
561b68a9 | 2684 | datasv = newSV(0); |
862a34c6 | 2685 | SvUPGRADE(datasv, SVt_PVIO); |
8141890a | 2686 | IoANY(datasv) = FPTR2DPTR(void *, funcp); /* stash funcp into spare field */ |
e0c19803 | 2687 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac | 2688 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
55662e27 JH |
2689 | FPTR2DPTR(void *, IoANY(datasv)), |
2690 | SvPV_nolen(datasv))); | |
3280af22 NIS |
2691 | av_unshift(PL_rsfp_filters, 1); |
2692 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
2693 | return(datasv); |
2694 | } | |
4e553d73 | 2695 | |
16d20bd9 AD |
2696 | |
2697 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 2698 | void |
864dbfa3 | 2699 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 2700 | { |
97aff369 | 2701 | dVAR; |
e0c19803 | 2702 | SV *datasv; |
24801a4b | 2703 | |
33073adb | 2704 | #ifdef DEBUGGING |
55662e27 JH |
2705 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", |
2706 | FPTR2DPTR(void*, funcp))); | |
33073adb | 2707 | #endif |
3280af22 | 2708 | if (!PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
2709 | return; |
2710 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 2711 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
8141890a | 2712 | if (IoANY(datasv) == FPTR2DPTR(void *, funcp)) { |
e0c19803 | 2713 | IoFLAGS(datasv) &= ~IOf_FAKE_DIRP; |
4755096e | 2714 | IoANY(datasv) = (void *)NULL; |
3280af22 | 2715 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 2716 | |
16d20bd9 AD |
2717 | return; |
2718 | } | |
2719 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 2720 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
2721 | } |
2722 | ||
2723 | ||
1de9afcd RGS |
2724 | /* Invoke the idxth filter function for the current rsfp. */ |
2725 | /* maxlen 0 = read one text line */ | |
16d20bd9 | 2726 | I32 |
864dbfa3 | 2727 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
a0d0e21e | 2728 | { |
97aff369 | 2729 | dVAR; |
16d20bd9 AD |
2730 | filter_t funcp; |
2731 | SV *datasv = NULL; | |
f482118e NC |
2732 | /* This API is bad. It should have been using unsigned int for maxlen. |
2733 | Not sure if we want to change the API, but if not we should sanity | |
2734 | check the value here. */ | |
39cd7a59 NC |
2735 | const unsigned int correct_length |
2736 | = maxlen < 0 ? | |
2737 | #ifdef PERL_MICRO | |
2738 | 0x7FFFFFFF | |
2739 | #else | |
2740 | INT_MAX | |
2741 | #endif | |
2742 | : maxlen; | |
e50aee73 | 2743 | |
3280af22 | 2744 | if (!PL_rsfp_filters) |
16d20bd9 | 2745 | return -1; |
1de9afcd | 2746 | if (idx > AvFILLp(PL_rsfp_filters)) { /* Any more filters? */ |
16d20bd9 AD |
2747 | /* Provide a default input filter to make life easy. */ |
2748 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
2749 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2750 | "filter_read %d: from rsfp\n", idx)); | |
f482118e | 2751 | if (correct_length) { |
16d20bd9 AD |
2752 | /* Want a block */ |
2753 | int len ; | |
f54cb97a | 2754 | const int old_len = SvCUR(buf_sv); |
16d20bd9 AD |
2755 | |
2756 | /* ensure buf_sv is large enough */ | |
f482118e NC |
2757 | SvGROW(buf_sv, (STRLEN)(old_len + correct_length)) ; |
2758 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, | |
2759 | correct_length)) <= 0) { | |
3280af22 | 2760 | if (PerlIO_error(PL_rsfp)) |
37120919 AD |
2761 | return -1; /* error */ |
2762 | else | |
2763 | return 0 ; /* end of file */ | |
2764 | } | |
16d20bd9 AD |
2765 | SvCUR_set(buf_sv, old_len + len) ; |
2766 | } else { | |
2767 | /* Want a line */ | |
3280af22 NIS |
2768 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
2769 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
2770 | return -1; /* error */ |
2771 | else | |
2772 | return 0 ; /* end of file */ | |
2773 | } | |
16d20bd9 AD |
2774 | } |
2775 | return SvCUR(buf_sv); | |
2776 | } | |
2777 | /* Skip this filter slot if filter has been deleted */ | |
1de9afcd | 2778 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef) { |
f4c556ac GS |
2779 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2780 | "filter_read %d: skipped (filter deleted)\n", | |
2781 | idx)); | |
f482118e | 2782 | return FILTER_READ(idx+1, buf_sv, correct_length); /* recurse */ |
16d20bd9 AD |
2783 | } |
2784 | /* Get function pointer hidden within datasv */ | |
8141890a | 2785 | funcp = DPTR2FPTR(filter_t, IoANY(datasv)); |
f4c556ac GS |
2786 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2787 | "filter_read %d: via function %p (%s)\n", | |
ca0270c4 | 2788 | idx, (void*)datasv, SvPV_nolen_const(datasv))); |
16d20bd9 AD |
2789 | /* Call function. The function is expected to */ |
2790 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 2791 | /* Return: <0:error, =0:eof, >0:not eof */ |
f482118e | 2792 | return (*funcp)(aTHX_ idx, buf_sv, correct_length); |
16d20bd9 AD |
2793 | } |
2794 | ||
76e3520e | 2795 | STATIC char * |
cea2e8a9 | 2796 | S_filter_gets(pTHX_ register SV *sv, register PerlIO *fp, STRLEN append) |
16d20bd9 | 2797 | { |
97aff369 | 2798 | dVAR; |
c39cd008 | 2799 | #ifdef PERL_CR_FILTER |
3280af22 | 2800 | if (!PL_rsfp_filters) { |
c39cd008 | 2801 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
2802 | } |
2803 | #endif | |
3280af22 | 2804 | if (PL_rsfp_filters) { |
55497cff | 2805 | if (!append) |
2806 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
2807 | if (FILTER_READ(0, sv, 0) > 0) |
2808 | return ( SvPVX(sv) ) ; | |
2809 | else | |
bd61b366 | 2810 | return NULL ; |
16d20bd9 | 2811 | } |
9d116dd7 | 2812 | else |
fd049845 | 2813 | return (sv_gets(sv, fp, append)); |
a0d0e21e LW |
2814 | } |
2815 | ||
01ec43d0 | 2816 | STATIC HV * |
7fc63493 | 2817 | S_find_in_my_stash(pTHX_ const char *pkgname, I32 len) |
def3634b | 2818 | { |
97aff369 | 2819 | dVAR; |
def3634b GS |
2820 | GV *gv; |
2821 | ||
01ec43d0 | 2822 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
2823 | return PL_curstash; |
2824 | ||
2825 | if (len > 2 && | |
2826 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
90e5519e | 2827 | (gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVHV))) |
01ec43d0 GS |
2828 | { |
2829 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
2830 | } |
2831 | ||
2832 | /* use constant CLASS => 'MyClass' */ | |
c35e046a AL |
2833 | gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVCV); |
2834 | if (gv && GvCV(gv)) { | |
2835 | SV * const sv = cv_const_sv(GvCV(gv)); | |
2836 | if (sv) | |
83003860 | 2837 | pkgname = SvPV_nolen_const(sv); |
def3634b GS |
2838 | } |
2839 | ||
2840 | return gv_stashpv(pkgname, FALSE); | |
2841 | } | |
a0d0e21e | 2842 | |
5db06880 NC |
2843 | #ifdef PERL_MAD |
2844 | /* | |
2845 | * Perl_madlex | |
2846 | * The intent of this yylex wrapper is to minimize the changes to the | |
2847 | * tokener when we aren't interested in collecting madprops. It remains | |
2848 | * to be seen how successful this strategy will be... | |
2849 | */ | |
2850 | ||
2851 | int | |
2852 | Perl_madlex(pTHX) | |
2853 | { | |
2854 | int optype; | |
2855 | char *s = PL_bufptr; | |
2856 | ||
cd81e915 NC |
2857 | /* make sure PL_thiswhite is initialized */ |
2858 | PL_thiswhite = 0; | |
2859 | PL_thismad = 0; | |
5db06880 | 2860 | |
cd81e915 | 2861 | /* just do what yylex would do on pending identifier; leave PL_thiswhite alone */ |
5db06880 NC |
2862 | if (PL_pending_ident) |
2863 | return S_pending_ident(aTHX); | |
2864 | ||
2865 | /* previous token ate up our whitespace? */ | |
cd81e915 NC |
2866 | if (!PL_lasttoke && PL_nextwhite) { |
2867 | PL_thiswhite = PL_nextwhite; | |
2868 | PL_nextwhite = 0; | |
5db06880 NC |
2869 | } |
2870 | ||
2871 | /* isolate the token, and figure out where it is without whitespace */ | |
cd81e915 NC |
2872 | PL_realtokenstart = -1; |
2873 | PL_thistoken = 0; | |
5db06880 NC |
2874 | optype = yylex(); |
2875 | s = PL_bufptr; | |
cd81e915 | 2876 | assert(PL_curforce < 0); |
5db06880 | 2877 | |
cd81e915 NC |
2878 | if (!PL_thismad || PL_thismad->mad_key == '^') { /* not forced already? */ |
2879 | if (!PL_thistoken) { | |
2880 | if (PL_realtokenstart < 0 || !CopLINE(PL_curcop)) | |
6b29d1f5 | 2881 | PL_thistoken = newSVpvs(""); |
5db06880 | 2882 | else { |
c35e046a | 2883 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 | 2884 | PL_thistoken = newSVpvn(tstart, s - tstart); |
5db06880 NC |
2885 | } |
2886 | } | |
cd81e915 NC |
2887 | if (PL_thismad) /* install head */ |
2888 | CURMAD('X', PL_thistoken); | |
5db06880 NC |
2889 | } |
2890 | ||
2891 | /* last whitespace of a sublex? */ | |
cd81e915 NC |
2892 | if (optype == ')' && PL_endwhite) { |
2893 | CURMAD('X', PL_endwhite); | |
5db06880 NC |
2894 | } |
2895 | ||
cd81e915 | 2896 | if (!PL_thismad) { |
5db06880 NC |
2897 | |
2898 | /* if no whitespace and we're at EOF, bail. Otherwise fake EOF below. */ | |
cd81e915 NC |
2899 | if (!PL_thiswhite && !PL_endwhite && !optype) { |
2900 | sv_free(PL_thistoken); | |
2901 | PL_thistoken = 0; | |
5db06880 NC |
2902 | return 0; |
2903 | } | |
2904 | ||
2905 | /* put off final whitespace till peg */ | |
2906 | if (optype == ';' && !PL_rsfp) { | |
cd81e915 NC |
2907 | PL_nextwhite = PL_thiswhite; |
2908 | PL_thiswhite = 0; | |
5db06880 | 2909 | } |
cd81e915 NC |
2910 | else if (PL_thisopen) { |
2911 | CURMAD('q', PL_thisopen); | |
2912 | if (PL_thistoken) | |
2913 | sv_free(PL_thistoken); | |
2914 | PL_thistoken = 0; | |
5db06880 NC |
2915 | } |
2916 | else { | |
2917 | /* Store actual token text as madprop X */ | |
cd81e915 | 2918 | CURMAD('X', PL_thistoken); |
5db06880 NC |
2919 | } |
2920 | ||
cd81e915 | 2921 | if (PL_thiswhite) { |
5db06880 | 2922 | /* add preceding whitespace as madprop _ */ |
cd81e915 | 2923 | CURMAD('_', PL_thiswhite); |
5db06880 NC |
2924 | } |
2925 | ||
cd81e915 | 2926 | if (PL_thisstuff) { |
5db06880 | 2927 | /* add quoted material as madprop = */ |
cd81e915 | 2928 | CURMAD('=', PL_thisstuff); |
5db06880 NC |
2929 | } |
2930 | ||
cd81e915 | 2931 | if (PL_thisclose) { |
5db06880 | 2932 | /* add terminating quote as madprop Q */ |
cd81e915 | 2933 | CURMAD('Q', PL_thisclose); |
5db06880 NC |
2934 | } |
2935 | } | |
2936 | ||
2937 | /* special processing based on optype */ | |
2938 | ||
2939 | switch (optype) { | |
2940 | ||
2941 | /* opval doesn't need a TOKEN since it can already store mp */ | |
2942 | case WORD: | |
2943 | case METHOD: | |
2944 | case FUNCMETH: | |
2945 | case THING: | |
2946 | case PMFUNC: | |
2947 | case PRIVATEREF: | |
2948 | case FUNC0SUB: | |
2949 | case UNIOPSUB: | |
2950 | case LSTOPSUB: | |
2951 | if (yylval.opval) | |
cd81e915 NC |
2952 | append_madprops(PL_thismad, yylval.opval, 0); |
2953 | PL_thismad = 0; | |
5db06880 NC |
2954 | return optype; |
2955 | ||
2956 | /* fake EOF */ | |
2957 | case 0: | |
2958 | optype = PEG; | |
cd81e915 NC |
2959 | if (PL_endwhite) { |
2960 | addmad(newMADsv('p', PL_endwhite), &PL_thismad, 0); | |
2961 | PL_endwhite = 0; | |
5db06880 NC |
2962 | } |
2963 | break; | |
2964 | ||
2965 | case ']': | |
2966 | case '}': | |
cd81e915 | 2967 | if (PL_faketokens) |
5db06880 NC |
2968 | break; |
2969 | /* remember any fake bracket that lexer is about to discard */ | |
2970 | if (PL_lex_brackets == 1 && | |
2971 | ((expectation)PL_lex_brackstack[0] & XFAKEBRACK)) | |
2972 | { | |
2973 | s = PL_bufptr; | |
2974 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
2975 | s++; | |
2976 | if (*s == '}') { | |
cd81e915 NC |
2977 | PL_thiswhite = newSVpvn(PL_bufptr, ++s - PL_bufptr); |
2978 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
2979 | PL_thiswhite = 0; | |
5db06880 NC |
2980 | PL_bufptr = s - 1; |
2981 | break; /* don't bother looking for trailing comment */ | |
2982 | } | |
2983 | else | |
2984 | s = PL_bufptr; | |
2985 | } | |
2986 | if (optype == ']') | |
2987 | break; | |
2988 | /* FALLTHROUGH */ | |
2989 | ||
2990 | /* attach a trailing comment to its statement instead of next token */ | |
2991 | case ';': | |
cd81e915 | 2992 | if (PL_faketokens) |
5db06880 NC |
2993 | break; |
2994 | if (PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == optype) { | |
2995 | s = PL_bufptr; | |
2996 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
2997 | s++; | |
2998 | if (*s == '\n' || *s == '#') { | |
2999 | while (s < PL_bufend && *s != '\n') | |
3000 | s++; | |
3001 | if (s < PL_bufend) | |
3002 | s++; | |
cd81e915 NC |
3003 | PL_thiswhite = newSVpvn(PL_bufptr, s - PL_bufptr); |
3004 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3005 | PL_thiswhite = 0; | |
5db06880 NC |
3006 | PL_bufptr = s; |
3007 | } | |
3008 | } | |
3009 | break; | |
3010 | ||
3011 | /* pval */ | |
3012 | case LABEL: | |
3013 | break; | |
3014 | ||
3015 | /* ival */ | |
3016 | default: | |
3017 | break; | |
3018 | ||
3019 | } | |
3020 | ||
3021 | /* Create new token struct. Note: opvals return early above. */ | |
cd81e915 NC |
3022 | yylval.tkval = newTOKEN(optype, yylval, PL_thismad); |
3023 | PL_thismad = 0; | |
5db06880 NC |
3024 | return optype; |
3025 | } | |
3026 | #endif | |
3027 | ||
468aa647 | 3028 | STATIC char * |
cc6ed77d | 3029 | S_tokenize_use(pTHX_ int is_use, char *s) { |
97aff369 | 3030 | dVAR; |
468aa647 RGS |
3031 | if (PL_expect != XSTATE) |
3032 | yyerror(Perl_form(aTHX_ "\"%s\" not allowed in expression", | |
3033 | is_use ? "use" : "no")); | |
29595ff2 | 3034 | s = SKIPSPACE1(s); |
468aa647 RGS |
3035 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { |
3036 | s = force_version(s, TRUE); | |
29595ff2 | 3037 | if (*s == ';' || (s = SKIPSPACE1(s), *s == ';')) { |
cd81e915 | 3038 | start_force(PL_curforce); |
9ded7720 | 3039 | NEXTVAL_NEXTTOKE.opval = NULL; |
468aa647 RGS |
3040 | force_next(WORD); |
3041 | } | |
3042 | else if (*s == 'v') { | |
3043 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3044 | s = force_version(s, FALSE); | |
3045 | } | |
3046 | } | |
3047 | else { | |
3048 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3049 | s = force_version(s, FALSE); | |
3050 | } | |
3051 | yylval.ival = is_use; | |
3052 | return s; | |
3053 | } | |
748a9306 | 3054 | #ifdef DEBUGGING |
27da23d5 | 3055 | static const char* const exp_name[] = |
09bef843 | 3056 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
27308ded | 3057 | "ATTRTERM", "TERMBLOCK", "TERMORDORDOR" |
09bef843 | 3058 | }; |
748a9306 | 3059 | #endif |
463ee0b2 | 3060 | |
02aa26ce NT |
3061 | /* |
3062 | yylex | |
3063 | ||
3064 | Works out what to call the token just pulled out of the input | |
3065 | stream. The yacc parser takes care of taking the ops we return and | |
3066 | stitching them into a tree. | |
3067 | ||
3068 | Returns: | |
3069 | PRIVATEREF | |
3070 | ||
3071 | Structure: | |
3072 | if read an identifier | |
3073 | if we're in a my declaration | |
3074 | croak if they tried to say my($foo::bar) | |
3075 | build the ops for a my() declaration | |
3076 | if it's an access to a my() variable | |
3077 | are we in a sort block? | |
3078 | croak if my($a); $a <=> $b | |
3079 | build ops for access to a my() variable | |
3080 | if in a dq string, and they've said @foo and we can't find @foo | |
3081 | croak | |
3082 | build ops for a bareword | |
3083 | if we already built the token before, use it. | |
3084 | */ | |
3085 | ||
20141f0e | 3086 | |
dba4d153 JH |
3087 | #ifdef __SC__ |
3088 | #pragma segment Perl_yylex | |
3089 | #endif | |
dba4d153 | 3090 | int |
dba4d153 | 3091 | Perl_yylex(pTHX) |
20141f0e | 3092 | { |
97aff369 | 3093 | dVAR; |
3afc138a | 3094 | register char *s = PL_bufptr; |
378cc40b | 3095 | register char *d; |
463ee0b2 | 3096 | STRLEN len; |
aa7440fb | 3097 | bool bof = FALSE; |
a687059c | 3098 | |
10edeb5d JH |
3099 | /* orig_keyword, gvp, and gv are initialized here because |
3100 | * jump to the label just_a_word_zero can bypass their | |
3101 | * initialization later. */ | |
3102 | I32 orig_keyword = 0; | |
3103 | GV *gv = NULL; | |
3104 | GV **gvp = NULL; | |
3105 | ||
bbf60fe6 | 3106 | DEBUG_T( { |
396482e1 | 3107 | SV* tmp = newSVpvs(""); |
b6007c36 DM |
3108 | PerlIO_printf(Perl_debug_log, "### %"IVdf":LEX_%s/X%s %s\n", |
3109 | (IV)CopLINE(PL_curcop), | |
3110 | lex_state_names[PL_lex_state], | |
3111 | exp_name[PL_expect], | |
3112 | pv_display(tmp, s, strlen(s), 0, 60)); | |
3113 | SvREFCNT_dec(tmp); | |
bbf60fe6 | 3114 | } ); |
02aa26ce | 3115 | /* check if there's an identifier for us to look at */ |
ba979b31 | 3116 | if (PL_pending_ident) |
bbf60fe6 | 3117 | return REPORT(S_pending_ident(aTHX)); |
bbce6d69 | 3118 | |
02aa26ce NT |
3119 | /* no identifier pending identification */ |
3120 | ||
3280af22 | 3121 | switch (PL_lex_state) { |
79072805 LW |
3122 | #ifdef COMMENTARY |
3123 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
3124 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
3125 | break; | |
3126 | #endif | |
3127 | ||
09bef843 | 3128 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 3129 | case LEX_KNOWNEXT: |
5db06880 NC |
3130 | #ifdef PERL_MAD |
3131 | PL_lasttoke--; | |
3132 | yylval = PL_nexttoke[PL_lasttoke].next_val; | |
3133 | if (PL_madskills) { | |
cd81e915 | 3134 | PL_thismad = PL_nexttoke[PL_lasttoke].next_mad; |
5db06880 | 3135 | PL_nexttoke[PL_lasttoke].next_mad = 0; |
cd81e915 NC |
3136 | if (PL_thismad && PL_thismad->mad_key == '_') { |
3137 | PL_thiswhite = (SV*)PL_thismad->mad_val; | |
3138 | PL_thismad->mad_val = 0; | |
3139 | mad_free(PL_thismad); | |
3140 | PL_thismad = 0; | |
5db06880 NC |
3141 | } |
3142 | } | |
3143 | if (!PL_lasttoke) { | |
3144 | PL_lex_state = PL_lex_defer; | |
3145 | PL_expect = PL_lex_expect; | |
3146 | PL_lex_defer = LEX_NORMAL; | |
3147 | if (!PL_nexttoke[PL_lasttoke].next_type) | |
3148 | return yylex(); | |
3149 | } | |
3150 | #else | |
3280af22 | 3151 | PL_nexttoke--; |
5db06880 | 3152 | yylval = PL_nextval[PL_nexttoke]; |
3280af22 NIS |
3153 | if (!PL_nexttoke) { |
3154 | PL_lex_state = PL_lex_defer; | |
3155 | PL_expect = PL_lex_expect; | |
3156 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 3157 | } |
5db06880 NC |
3158 | #endif |
3159 | #ifdef PERL_MAD | |
3160 | /* FIXME - can these be merged? */ | |
3161 | return(PL_nexttoke[PL_lasttoke].next_type); | |
3162 | #else | |
bbf60fe6 | 3163 | return REPORT(PL_nexttype[PL_nexttoke]); |
5db06880 | 3164 | #endif |
79072805 | 3165 | |
02aa26ce | 3166 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 3167 | when we get here, PL_bufptr is at the \ |
02aa26ce | 3168 | */ |
79072805 LW |
3169 | case LEX_INTERPCASEMOD: |
3170 | #ifdef DEBUGGING | |
3280af22 | 3171 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 3172 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 3173 | #endif |
02aa26ce | 3174 | /* handle \E or end of string */ |
3280af22 | 3175 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
02aa26ce | 3176 | /* if at a \E */ |
3280af22 | 3177 | if (PL_lex_casemods) { |
f54cb97a | 3178 | const char oldmod = PL_lex_casestack[--PL_lex_casemods]; |
3280af22 | 3179 | PL_lex_casestack[PL_lex_casemods] = '\0'; |
02aa26ce | 3180 | |
3792a11b NC |
3181 | if (PL_bufptr != PL_bufend |
3182 | && (oldmod == 'L' || oldmod == 'U' || oldmod == 'Q')) { | |
3280af22 NIS |
3183 | PL_bufptr += 2; |
3184 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3185 | #ifdef PERL_MAD |
3186 | if (PL_madskills) | |
6b29d1f5 | 3187 | PL_thistoken = newSVpvs("\\E"); |
5db06880 | 3188 | #endif |
a0d0e21e | 3189 | } |
bbf60fe6 | 3190 | return REPORT(')'); |
79072805 | 3191 | } |
5db06880 NC |
3192 | #ifdef PERL_MAD |
3193 | while (PL_bufptr != PL_bufend && | |
3194 | PL_bufptr[0] == '\\' && PL_bufptr[1] == 'E') { | |
cd81e915 | 3195 | if (!PL_thiswhite) |
6b29d1f5 | 3196 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3197 | sv_catpvn(PL_thiswhite, PL_bufptr, 2); |
5db06880 NC |
3198 | PL_bufptr += 2; |
3199 | } | |
3200 | #else | |
3280af22 NIS |
3201 | if (PL_bufptr != PL_bufend) |
3202 | PL_bufptr += 2; | |
5db06880 | 3203 | #endif |
3280af22 | 3204 | PL_lex_state = LEX_INTERPCONCAT; |
cea2e8a9 | 3205 | return yylex(); |
79072805 LW |
3206 | } |
3207 | else { | |
607df283 | 3208 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3209 | "### Saw case modifier\n"); }); |
3280af22 | 3210 | s = PL_bufptr + 1; |
6e909404 | 3211 | if (s[1] == '\\' && s[2] == 'E') { |
5db06880 | 3212 | #ifdef PERL_MAD |
cd81e915 | 3213 | if (!PL_thiswhite) |
6b29d1f5 | 3214 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3215 | sv_catpvn(PL_thiswhite, PL_bufptr, 4); |
5db06880 | 3216 | #endif |
89122651 | 3217 | PL_bufptr = s + 3; |
6e909404 JH |
3218 | PL_lex_state = LEX_INTERPCONCAT; |
3219 | return yylex(); | |
a0d0e21e | 3220 | } |
6e909404 | 3221 | else { |
90771dc0 | 3222 | I32 tmp; |
5db06880 NC |
3223 | if (!PL_madskills) /* when just compiling don't need correct */ |
3224 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
3225 | tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */ | |
3792a11b | 3226 | if ((*s == 'L' || *s == 'U') && |
6e909404 JH |
3227 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) { |
3228 | PL_lex_casestack[--PL_lex_casemods] = '\0'; | |
bbf60fe6 | 3229 | return REPORT(')'); |
6e909404 JH |
3230 | } |
3231 | if (PL_lex_casemods > 10) | |
3232 | Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
3233 | PL_lex_casestack[PL_lex_casemods++] = *s; | |
3234 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
3235 | PL_lex_state = LEX_INTERPCONCAT; | |
cd81e915 | 3236 | start_force(PL_curforce); |
9ded7720 | 3237 | NEXTVAL_NEXTTOKE.ival = 0; |
6e909404 | 3238 | force_next('('); |
cd81e915 | 3239 | start_force(PL_curforce); |
6e909404 | 3240 | if (*s == 'l') |
9ded7720 | 3241 | NEXTVAL_NEXTTOKE.ival = OP_LCFIRST; |
6e909404 | 3242 | else if (*s == 'u') |
9ded7720 | 3243 | NEXTVAL_NEXTTOKE.ival = OP_UCFIRST; |
6e909404 | 3244 | else if (*s == 'L') |
9ded7720 | 3245 | NEXTVAL_NEXTTOKE.ival = OP_LC; |
6e909404 | 3246 | else if (*s == 'U') |
9ded7720 | 3247 | NEXTVAL_NEXTTOKE.ival = OP_UC; |
6e909404 | 3248 | else if (*s == 'Q') |
9ded7720 | 3249 | NEXTVAL_NEXTTOKE.ival = OP_QUOTEMETA; |
6e909404 JH |
3250 | else |
3251 | Perl_croak(aTHX_ "panic: yylex"); | |
5db06880 | 3252 | if (PL_madskills) { |
6b29d1f5 | 3253 | SV* const tmpsv = newSVpvs(""); |
5db06880 NC |
3254 | Perl_sv_catpvf(aTHX_ tmpsv, "\\%c", *s); |
3255 | curmad('_', tmpsv); | |
3256 | } | |
6e909404 | 3257 | PL_bufptr = s + 1; |
a0d0e21e | 3258 | } |
79072805 | 3259 | force_next(FUNC); |
3280af22 NIS |
3260 | if (PL_lex_starts) { |
3261 | s = PL_bufptr; | |
3262 | PL_lex_starts = 0; | |
5db06880 NC |
3263 | #ifdef PERL_MAD |
3264 | if (PL_madskills) { | |
cd81e915 NC |
3265 | if (PL_thistoken) |
3266 | sv_free(PL_thistoken); | |
6b29d1f5 | 3267 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3268 | } |
3269 | #endif | |
131b3ad0 DM |
3270 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3271 | if (PL_lex_casemods == 1 && PL_lex_inpat) | |
3272 | OPERATOR(','); | |
3273 | else | |
3274 | Aop(OP_CONCAT); | |
79072805 LW |
3275 | } |
3276 | else | |
cea2e8a9 | 3277 | return yylex(); |
79072805 LW |
3278 | } |
3279 | ||
55497cff | 3280 | case LEX_INTERPPUSH: |
bbf60fe6 | 3281 | return REPORT(sublex_push()); |
55497cff | 3282 | |
79072805 | 3283 | case LEX_INTERPSTART: |
3280af22 | 3284 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3285 | return REPORT(sublex_done()); |
607df283 | 3286 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3287 | "### Interpolated variable\n"); }); |
3280af22 NIS |
3288 | PL_expect = XTERM; |
3289 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
3290 | PL_lex_state = LEX_INTERPNORMAL; | |
3291 | if (PL_lex_dojoin) { | |
cd81e915 | 3292 | start_force(PL_curforce); |
9ded7720 | 3293 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3294 | force_next(','); |
cd81e915 | 3295 | start_force(PL_curforce); |
a0d0e21e | 3296 | force_ident("\"", '$'); |
cd81e915 | 3297 | start_force(PL_curforce); |
9ded7720 | 3298 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3299 | force_next('$'); |
cd81e915 | 3300 | start_force(PL_curforce); |
9ded7720 | 3301 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3302 | force_next('('); |
cd81e915 | 3303 | start_force(PL_curforce); |
9ded7720 | 3304 | NEXTVAL_NEXTTOKE.ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
3305 | force_next(FUNC); |
3306 | } | |
3280af22 NIS |
3307 | if (PL_lex_starts++) { |
3308 | s = PL_bufptr; | |
5db06880 NC |
3309 | #ifdef PERL_MAD |
3310 | if (PL_madskills) { | |
cd81e915 NC |
3311 | if (PL_thistoken) |
3312 | sv_free(PL_thistoken); | |
6b29d1f5 | 3313 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3314 | } |
3315 | #endif | |
131b3ad0 DM |
3316 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3317 | if (!PL_lex_casemods && PL_lex_inpat) | |
3318 | OPERATOR(','); | |
3319 | else | |
3320 | Aop(OP_CONCAT); | |
79072805 | 3321 | } |
cea2e8a9 | 3322 | return yylex(); |
79072805 LW |
3323 | |
3324 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
3325 | if (intuit_more(PL_bufptr)) { |
3326 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
3327 | break; |
3328 | } | |
3329 | /* FALL THROUGH */ | |
3330 | ||
3331 | case LEX_INTERPEND: | |
3280af22 NIS |
3332 | if (PL_lex_dojoin) { |
3333 | PL_lex_dojoin = FALSE; | |
3334 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3335 | #ifdef PERL_MAD |
3336 | if (PL_madskills) { | |
cd81e915 NC |
3337 | if (PL_thistoken) |
3338 | sv_free(PL_thistoken); | |
6b29d1f5 | 3339 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3340 | } |
3341 | #endif | |
bbf60fe6 | 3342 | return REPORT(')'); |
79072805 | 3343 | } |
43a16006 | 3344 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 3345 | && SvEVALED(PL_lex_repl)) |
43a16006 | 3346 | { |
e9fa98b2 | 3347 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 3348 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
a0714e2c | 3349 | PL_lex_repl = NULL; |
e9fa98b2 | 3350 | } |
79072805 LW |
3351 | /* FALLTHROUGH */ |
3352 | case LEX_INTERPCONCAT: | |
3353 | #ifdef DEBUGGING | |
3280af22 | 3354 | if (PL_lex_brackets) |
cea2e8a9 | 3355 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 3356 | #endif |
3280af22 | 3357 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3358 | return REPORT(sublex_done()); |
79072805 | 3359 | |
3280af22 NIS |
3360 | if (SvIVX(PL_linestr) == '\'') { |
3361 | SV *sv = newSVsv(PL_linestr); | |
3362 | if (!PL_lex_inpat) | |
76e3520e | 3363 | sv = tokeq(sv); |
3280af22 | 3364 | else if ( PL_hints & HINT_NEW_RE ) |
b3ac6de7 | 3365 | sv = new_constant(NULL, 0, "qr", sv, sv, "q"); |
79072805 | 3366 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 3367 | s = PL_bufend; |
79072805 LW |
3368 | } |
3369 | else { | |
3280af22 | 3370 | s = scan_const(PL_bufptr); |
79072805 | 3371 | if (*s == '\\') |
3280af22 | 3372 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 3373 | else |
3280af22 | 3374 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
3375 | } |
3376 | ||
3280af22 | 3377 | if (s != PL_bufptr) { |
cd81e915 | 3378 | start_force(PL_curforce); |
5db06880 NC |
3379 | if (PL_madskills) { |
3380 | curmad('X', newSVpvn(PL_bufptr,s-PL_bufptr)); | |
3381 | } | |
9ded7720 | 3382 | NEXTVAL_NEXTTOKE = yylval; |
3280af22 | 3383 | PL_expect = XTERM; |
79072805 | 3384 | force_next(THING); |
131b3ad0 | 3385 | if (PL_lex_starts++) { |
5db06880 NC |
3386 | #ifdef PERL_MAD |
3387 | if (PL_madskills) { | |
cd81e915 NC |
3388 | if (PL_thistoken) |
3389 | sv_free(PL_thistoken); | |
6b29d1f5 | 3390 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3391 | } |
3392 | #endif | |
131b3ad0 DM |
3393 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3394 | if (!PL_lex_casemods && PL_lex_inpat) | |
3395 | OPERATOR(','); | |
3396 | else | |
3397 | Aop(OP_CONCAT); | |
3398 | } | |
79072805 | 3399 | else { |
3280af22 | 3400 | PL_bufptr = s; |
cea2e8a9 | 3401 | return yylex(); |
79072805 LW |
3402 | } |
3403 | } | |
3404 | ||
cea2e8a9 | 3405 | return yylex(); |
a0d0e21e | 3406 | case LEX_FORMLINE: |
3280af22 NIS |
3407 | PL_lex_state = LEX_NORMAL; |
3408 | s = scan_formline(PL_bufptr); | |
3409 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
3410 | goto rightbracket; |
3411 | OPERATOR(';'); | |
79072805 LW |
3412 | } |
3413 | ||
3280af22 NIS |
3414 | s = PL_bufptr; |
3415 | PL_oldoldbufptr = PL_oldbufptr; | |
3416 | PL_oldbufptr = s; | |
463ee0b2 LW |
3417 | |
3418 | retry: | |
5db06880 | 3419 | #ifdef PERL_MAD |
cd81e915 NC |
3420 | if (PL_thistoken) { |
3421 | sv_free(PL_thistoken); | |
3422 | PL_thistoken = 0; | |
5db06880 | 3423 | } |
cd81e915 | 3424 | PL_realtokenstart = s - SvPVX(PL_linestr); /* assume but undo on ws */ |
5db06880 | 3425 | #endif |
378cc40b LW |
3426 | switch (*s) { |
3427 | default: | |
7e2040f0 | 3428 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 3429 | goto keylookup; |
cea2e8a9 | 3430 | Perl_croak(aTHX_ "Unrecognized character \\x%02X", *s & 255); |
e929a76b LW |
3431 | case 4: |
3432 | case 26: | |
3433 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 3434 | case 0: |
5db06880 NC |
3435 | #ifdef PERL_MAD |
3436 | if (PL_madskills) | |
cd81e915 | 3437 | PL_faketokens = 0; |
5db06880 | 3438 | #endif |
3280af22 NIS |
3439 | if (!PL_rsfp) { |
3440 | PL_last_uni = 0; | |
3441 | PL_last_lop = 0; | |
c5ee2135 | 3442 | if (PL_lex_brackets) { |
10edeb5d JH |
3443 | yyerror((const char *) |
3444 | (PL_lex_formbrack | |
3445 | ? "Format not terminated" | |
3446 | : "Missing right curly or square bracket")); | |
c5ee2135 | 3447 | } |
4e553d73 | 3448 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 3449 | "### Tokener got EOF\n"); |
5f80b19c | 3450 | } ); |
79072805 | 3451 | TOKEN(0); |
463ee0b2 | 3452 | } |
3280af22 | 3453 | if (s++ < PL_bufend) |
a687059c | 3454 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
3455 | PL_last_uni = 0; |
3456 | PL_last_lop = 0; | |
3457 | if (!PL_in_eval && !PL_preambled) { | |
3458 | PL_preambled = TRUE; | |
5db06880 NC |
3459 | #ifdef PERL_MAD |
3460 | if (PL_madskills) | |
cd81e915 | 3461 | PL_faketokens = 1; |
5db06880 | 3462 | #endif |
3280af22 NIS |
3463 | sv_setpv(PL_linestr,incl_perldb()); |
3464 | if (SvCUR(PL_linestr)) | |
396482e1 | 3465 | sv_catpvs(PL_linestr,";"); |
3280af22 NIS |
3466 | if (PL_preambleav){ |
3467 | while(AvFILLp(PL_preambleav) >= 0) { | |
3468 | SV *tmpsv = av_shift(PL_preambleav); | |
3469 | sv_catsv(PL_linestr, tmpsv); | |
396482e1 | 3470 | sv_catpvs(PL_linestr, ";"); |
91b7def8 | 3471 | sv_free(tmpsv); |
3472 | } | |
3280af22 NIS |
3473 | sv_free((SV*)PL_preambleav); |
3474 | PL_preambleav = NULL; | |
91b7def8 | 3475 | } |
3280af22 | 3476 | if (PL_minus_n || PL_minus_p) { |
396482e1 | 3477 | sv_catpvs(PL_linestr, "LINE: while (<>) {"); |
3280af22 | 3478 | if (PL_minus_l) |
396482e1 | 3479 | sv_catpvs(PL_linestr,"chomp;"); |
3280af22 | 3480 | if (PL_minus_a) { |
3280af22 | 3481 | if (PL_minus_F) { |
3792a11b NC |
3482 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
3483 | || *PL_splitstr == '"') | |
3280af22 | 3484 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 3485 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 3486 | else { |
c8ef6a4b NC |
3487 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
3488 | bytes can be used as quoting characters. :-) */ | |
dd374669 | 3489 | const char *splits = PL_splitstr; |
91d456ae | 3490 | sv_catpvs(PL_linestr, "our @F=split(q\0"); |
48c4c863 NC |
3491 | do { |
3492 | /* Need to \ \s */ | |
dd374669 AL |
3493 | if (*splits == '\\') |
3494 | sv_catpvn(PL_linestr, splits, 1); | |
3495 | sv_catpvn(PL_linestr, splits, 1); | |
3496 | } while (*splits++); | |
48c4c863 NC |
3497 | /* This loop will embed the trailing NUL of |
3498 | PL_linestr as the last thing it does before | |
3499 | terminating. */ | |
396482e1 | 3500 | sv_catpvs(PL_linestr, ");"); |
54310121 | 3501 | } |
2304df62 AD |
3502 | } |
3503 | else | |
396482e1 | 3504 | sv_catpvs(PL_linestr,"our @F=split(' ');"); |
2304df62 | 3505 | } |
79072805 | 3506 | } |
bc9b29db | 3507 | if (PL_minus_E) |
396482e1 GA |
3508 | sv_catpvs(PL_linestr,"use feature ':5.10';"); |
3509 | sv_catpvs(PL_linestr, "\n"); | |
3280af22 NIS |
3510 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3511 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3512 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3513 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
561b68a9 | 3514 | SV * const sv = newSV(0); |
a0d0e21e LW |
3515 | |
3516 | sv_upgrade(sv, SVt_PVMG); | |
3280af22 | 3517 | sv_setsv(sv,PL_linestr); |
0ac0412a | 3518 | (void)SvIOK_on(sv); |
45977657 | 3519 | SvIV_set(sv, 0); |
36c7798d | 3520 | av_store(CopFILEAVx(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
a0d0e21e | 3521 | } |
79072805 | 3522 | goto retry; |
a687059c | 3523 | } |
e929a76b | 3524 | do { |
aa7440fb | 3525 | bof = PL_rsfp ? TRUE : FALSE; |
bd61b366 | 3526 | if ((s = filter_gets(PL_linestr, PL_rsfp, 0)) == NULL) { |
7e28d3af | 3527 | fake_eof: |
5db06880 | 3528 | #ifdef PERL_MAD |
cd81e915 | 3529 | PL_realtokenstart = -1; |
5db06880 | 3530 | #endif |
7e28d3af JH |
3531 | if (PL_rsfp) { |
3532 | if (PL_preprocess && !PL_in_eval) | |
3533 | (void)PerlProc_pclose(PL_rsfp); | |
3534 | else if ((PerlIO *)PL_rsfp == PerlIO_stdin()) | |
3535 | PerlIO_clearerr(PL_rsfp); | |
3536 | else | |
3537 | (void)PerlIO_close(PL_rsfp); | |
4608196e | 3538 | PL_rsfp = NULL; |
7e28d3af JH |
3539 | PL_doextract = FALSE; |
3540 | } | |
3541 | if (!PL_in_eval && (PL_minus_n || PL_minus_p)) { | |
5db06880 NC |
3542 | #ifdef PERL_MAD |
3543 | if (PL_madskills) | |
cd81e915 | 3544 | PL_faketokens = 1; |
5db06880 | 3545 | #endif |
10edeb5d JH |
3546 | sv_setpv(PL_linestr, |
3547 | (const char *) | |
3548 | (PL_minus_p | |
3549 | ? ";}continue{print;}" : ";}")); | |
7e28d3af JH |
3550 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3551 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3552 | PL_last_lop = PL_last_uni = NULL; |
7e28d3af JH |
3553 | PL_minus_n = PL_minus_p = 0; |
3554 | goto retry; | |
3555 | } | |
3556 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
bd61b366 | 3557 | PL_last_lop = PL_last_uni = NULL; |
c69006e4 | 3558 | sv_setpvn(PL_linestr,"",0); |
7e28d3af JH |
3559 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ |
3560 | } | |
7aa207d6 JH |
3561 | /* If it looks like the start of a BOM or raw UTF-16, |
3562 | * check if it in fact is. */ | |
3563 | else if (bof && | |
3564 | (*s == 0 || | |
3565 | *(U8*)s == 0xEF || | |
3566 | *(U8*)s >= 0xFE || | |
3567 | s[1] == 0)) { | |
226017aa | 3568 | #ifdef PERLIO_IS_STDIO |
e3f494f1 JH |
3569 | # ifdef __GNU_LIBRARY__ |
3570 | # if __GNU_LIBRARY__ == 1 /* Linux glibc5 */ | |
226017aa DD |
3571 | # define FTELL_FOR_PIPE_IS_BROKEN |
3572 | # endif | |
e3f494f1 JH |
3573 | # else |
3574 | # ifdef __GLIBC__ | |
3575 | # if __GLIBC__ == 1 /* maybe some glibc5 release had it like this? */ | |
3576 | # define FTELL_FOR_PIPE_IS_BROKEN | |
3577 | # endif | |
3578 | # endif | |
226017aa DD |
3579 | # endif |
3580 | #endif | |
3581 | #ifdef FTELL_FOR_PIPE_IS_BROKEN | |
3582 | /* This loses the possibility to detect the bof | |
3583 | * situation on perl -P when the libc5 is being used. | |
3584 | * Workaround? Maybe attach some extra state to PL_rsfp? | |
3585 | */ | |
3586 | if (!PL_preprocess) | |
7e28d3af | 3587 | bof = PerlIO_tell(PL_rsfp) == SvCUR(PL_linestr); |
226017aa | 3588 | #else |
eb160463 | 3589 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
226017aa | 3590 | #endif |
7e28d3af | 3591 | if (bof) { |
3280af22 | 3592 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 3593 | s = swallow_bom((U8*)s); |
e929a76b | 3594 | } |
378cc40b | 3595 | } |
3280af22 | 3596 | if (PL_doextract) { |
a0d0e21e | 3597 | /* Incest with pod. */ |
5db06880 NC |
3598 | #ifdef PERL_MAD |
3599 | if (PL_madskills) | |
cd81e915 | 3600 | sv_catsv(PL_thiswhite, PL_linestr); |
5db06880 | 3601 | #endif |
a0d0e21e | 3602 | if (*s == '=' && strnEQ(s, "=cut", 4)) { |
c69006e4 | 3603 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3604 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3605 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3606 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3607 | PL_doextract = FALSE; |
a0d0e21e | 3608 | } |
4e553d73 | 3609 | } |
463ee0b2 | 3610 | incline(s); |
3280af22 NIS |
3611 | } while (PL_doextract); |
3612 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
3613 | if (PERLDB_LINE && PL_curstash != PL_debstash) { | |
561b68a9 | 3614 | SV * const sv = newSV(0); |
a687059c | 3615 | |
93a17b20 | 3616 | sv_upgrade(sv, SVt_PVMG); |
3280af22 | 3617 | sv_setsv(sv,PL_linestr); |
0ac0412a | 3618 | (void)SvIOK_on(sv); |
45977657 | 3619 | SvIV_set(sv, 0); |
36c7798d | 3620 | av_store(CopFILEAVx(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
a687059c | 3621 | } |
3280af22 | 3622 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 3623 | PL_last_lop = PL_last_uni = NULL; |
57843af0 | 3624 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 3625 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 3626 | s++; |
a0d0e21e | 3627 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 3628 | s++; |
5db06880 NC |
3629 | #ifdef PERL_MAD |
3630 | if (PL_madskills) | |
cd81e915 | 3631 | PL_thiswhite = newSVpvn(PL_linestart, s - PL_linestart); |
5db06880 | 3632 | #endif |
bd61b366 | 3633 | d = NULL; |
3280af22 | 3634 | if (!PL_in_eval) { |
44a8e56a | 3635 | if (*s == '#' && *(s+1) == '!') |
3636 | d = s + 2; | |
3637 | #ifdef ALTERNATE_SHEBANG | |
3638 | else { | |
bfed75c6 | 3639 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 3640 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
3641 | d = s + (sizeof(as) - 1); | |
3642 | } | |
3643 | #endif /* ALTERNATE_SHEBANG */ | |
3644 | } | |
3645 | if (d) { | |
b8378b72 | 3646 | char *ipath; |
774d564b | 3647 | char *ipathend; |
b8378b72 | 3648 | |
774d564b | 3649 | while (isSPACE(*d)) |
b8378b72 CS |
3650 | d++; |
3651 | ipath = d; | |
774d564b | 3652 | while (*d && !isSPACE(*d)) |
3653 | d++; | |
3654 | ipathend = d; | |
3655 | ||
3656 | #ifdef ARG_ZERO_IS_SCRIPT | |
3657 | if (ipathend > ipath) { | |
3658 | /* | |
3659 | * HP-UX (at least) sets argv[0] to the script name, | |
3660 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
3661 | * at least, set argv[0] to the basename of the Perl | |
3662 | * interpreter. So, having found "#!", we'll set it right. | |
3663 | */ | |
fafc274c NC |
3664 | SV * const x = GvSV(gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, |
3665 | SVt_PV)); /* $^X */ | |
774d564b | 3666 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 3667 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 3668 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 3669 | SvSETMAGIC(x); |
3670 | } | |
556c1dec JH |
3671 | else { |
3672 | STRLEN blen; | |
3673 | STRLEN llen; | |
cfd0369c | 3674 | const char *bstart = SvPV_const(CopFILESV(PL_curcop),blen); |
9d4ba2ae | 3675 | const char * const lstart = SvPV_const(x,llen); |
556c1dec JH |
3676 | if (llen < blen) { |
3677 | bstart += blen - llen; | |
3678 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
3679 | sv_setpvn(x, ipath, ipathend - ipath); | |
3680 | SvSETMAGIC(x); | |
3681 | } | |
3682 | } | |
3683 | } | |
774d564b | 3684 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 3685 | } |
774d564b | 3686 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
3687 | |
3688 | /* | |
3689 | * Look for options. | |
3690 | */ | |
748a9306 | 3691 | d = instr(s,"perl -"); |
84e30d1a | 3692 | if (!d) { |
748a9306 | 3693 | d = instr(s,"perl"); |
84e30d1a GS |
3694 | #if defined(DOSISH) |
3695 | /* avoid getting into infinite loops when shebang | |
3696 | * line contains "Perl" rather than "perl" */ | |
3697 | if (!d) { | |
3698 | for (d = ipathend-4; d >= ipath; --d) { | |
3699 | if ((*d == 'p' || *d == 'P') | |
3700 | && !ibcmp(d, "perl", 4)) | |
3701 | { | |
3702 | break; | |
3703 | } | |
3704 | } | |
3705 | if (d < ipath) | |
bd61b366 | 3706 | d = NULL; |
84e30d1a GS |
3707 | } |
3708 | #endif | |
3709 | } | |
44a8e56a | 3710 | #ifdef ALTERNATE_SHEBANG |
3711 | /* | |
3712 | * If the ALTERNATE_SHEBANG on this system starts with a | |
3713 | * character that can be part of a Perl expression, then if | |
3714 | * we see it but not "perl", we're probably looking at the | |
3715 | * start of Perl code, not a request to hand off to some | |
3716 | * other interpreter. Similarly, if "perl" is there, but | |
3717 | * not in the first 'word' of the line, we assume the line | |
3718 | * contains the start of the Perl program. | |
44a8e56a | 3719 | */ |
3720 | if (d && *s != '#') { | |
f54cb97a | 3721 | const char *c = ipath; |
44a8e56a | 3722 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
3723 | c++; | |
3724 | if (c < d) | |
bd61b366 | 3725 | d = NULL; /* "perl" not in first word; ignore */ |
44a8e56a | 3726 | else |
3727 | *s = '#'; /* Don't try to parse shebang line */ | |
3728 | } | |
774d564b | 3729 | #endif /* ALTERNATE_SHEBANG */ |
bf4acbe4 | 3730 | #ifndef MACOS_TRADITIONAL |
748a9306 | 3731 | if (!d && |
44a8e56a | 3732 | *s == '#' && |
774d564b | 3733 | ipathend > ipath && |
3280af22 | 3734 | !PL_minus_c && |
748a9306 | 3735 | !instr(s,"indir") && |
3280af22 | 3736 | instr(PL_origargv[0],"perl")) |
748a9306 | 3737 | { |
27da23d5 | 3738 | dVAR; |
9f68db38 | 3739 | char **newargv; |
9f68db38 | 3740 | |
774d564b | 3741 | *ipathend = '\0'; |
3742 | s = ipathend + 1; | |
3280af22 | 3743 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 3744 | s++; |
3280af22 | 3745 | if (s < PL_bufend) { |
a02a5408 | 3746 | Newxz(newargv,PL_origargc+3,char*); |
9f68db38 | 3747 | newargv[1] = s; |
3280af22 | 3748 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
3749 | s++; |
3750 | *s = '\0'; | |
3280af22 | 3751 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
3752 | } |
3753 | else | |
3280af22 | 3754 | newargv = PL_origargv; |
774d564b | 3755 | newargv[0] = ipath; |
b35112e7 | 3756 | PERL_FPU_PRE_EXEC |
b4748376 | 3757 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
b35112e7 | 3758 | PERL_FPU_POST_EXEC |
cea2e8a9 | 3759 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 3760 | } |
bf4acbe4 | 3761 | #endif |
748a9306 | 3762 | if (d) { |
c35e046a AL |
3763 | while (*d && !isSPACE(*d)) |
3764 | d++; | |
3765 | while (SPACE_OR_TAB(*d)) | |
3766 | d++; | |
748a9306 LW |
3767 | |
3768 | if (*d++ == '-') { | |
f54cb97a | 3769 | const bool switches_done = PL_doswitches; |
fb993905 GA |
3770 | const U32 oldpdb = PL_perldb; |
3771 | const bool oldn = PL_minus_n; | |
3772 | const bool oldp = PL_minus_p; | |
3773 | ||
8cc95fdb | 3774 | do { |
3ffe3ee4 | 3775 | if (*d == 'M' || *d == 'm' || *d == 'C') { |
9d4ba2ae | 3776 | const char * const m = d; |
d4c19fe8 AL |
3777 | while (*d && !isSPACE(*d)) |
3778 | d++; | |
cea2e8a9 | 3779 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
8cc95fdb | 3780 | (int)(d - m), m); |
3781 | } | |
97bd5664 | 3782 | d = moreswitches(d); |
8cc95fdb | 3783 | } while (d); |
f0b2cf55 YST |
3784 | if (PL_doswitches && !switches_done) { |
3785 | int argc = PL_origargc; | |
3786 | char **argv = PL_origargv; | |
3787 | do { | |
3788 | argc--,argv++; | |
3789 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
3790 | init_argv_symbols(argc,argv); | |
3791 | } | |
155aba94 GS |
3792 | if ((PERLDB_LINE && !oldpdb) || |
3793 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) | |
b084f20b | 3794 | /* if we have already added "LINE: while (<>) {", |
3795 | we must not do it again */ | |
748a9306 | 3796 | { |
c69006e4 | 3797 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3798 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3799 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3800 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3801 | PL_preambled = FALSE; |
84902520 | 3802 | if (PERLDB_LINE) |
3280af22 | 3803 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
3804 | goto retry; |
3805 | } | |
a0d0e21e | 3806 | } |
79072805 | 3807 | } |
9f68db38 | 3808 | } |
79072805 | 3809 | } |
3280af22 NIS |
3810 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3811 | PL_bufptr = s; | |
3812 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3813 | return yylex(); |
ae986130 | 3814 | } |
378cc40b | 3815 | goto retry; |
4fdae800 | 3816 | case '\r': |
6a27c188 | 3817 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 3818 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 3819 | Perl_croak(aTHX_ |
cc507455 | 3820 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 3821 | #endif |
4fdae800 | 3822 | case ' ': case '\t': case '\f': case 013: |
bf4acbe4 GS |
3823 | #ifdef MACOS_TRADITIONAL |
3824 | case '\312': | |
3825 | #endif | |
5db06880 | 3826 | #ifdef PERL_MAD |
cd81e915 | 3827 | PL_realtokenstart = -1; |
5db06880 NC |
3828 | s = SKIPSPACE0(s); |
3829 | #else | |
378cc40b | 3830 | s++; |
5db06880 | 3831 | #endif |
378cc40b | 3832 | goto retry; |
378cc40b | 3833 | case '#': |
e929a76b | 3834 | case '\n': |
5db06880 | 3835 | #ifdef PERL_MAD |
cd81e915 | 3836 | PL_realtokenstart = -1; |
5db06880 | 3837 | if (PL_madskills) |
cd81e915 | 3838 | PL_faketokens = 0; |
5db06880 | 3839 | #endif |
3280af22 | 3840 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
3841 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
3842 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
3843 | CopLINE_dec(PL_curcop); | |
3844 | incline(s); | |
3845 | } | |
5db06880 NC |
3846 | if (PL_madskills && !PL_lex_formbrack && !PL_in_eval) { |
3847 | s = SKIPSPACE0(s); | |
3848 | if (!PL_in_eval || PL_rsfp) | |
3849 | incline(s); | |
3850 | } | |
3851 | else { | |
3852 | d = s; | |
3853 | while (d < PL_bufend && *d != '\n') | |
3854 | d++; | |
3855 | if (d < PL_bufend) | |
3856 | d++; | |
3857 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
3858 | Perl_croak(aTHX_ "panic: input overflow"); | |
3859 | #ifdef PERL_MAD | |
3860 | if (PL_madskills) | |
cd81e915 | 3861 | PL_thiswhite = newSVpvn(s, d - s); |
5db06880 NC |
3862 | #endif |
3863 | s = d; | |
3864 | incline(s); | |
3865 | } | |
3280af22 NIS |
3866 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3867 | PL_bufptr = s; | |
3868 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3869 | return yylex(); |
a687059c | 3870 | } |
378cc40b | 3871 | } |
a687059c | 3872 | else { |
5db06880 NC |
3873 | #ifdef PERL_MAD |
3874 | if (PL_madskills && CopLINE(PL_curcop) >= 1 && !PL_lex_formbrack) { | |
3875 | if (CopLINE(PL_curcop) == 1 && s[0] == '#' && s[1] == '!') { | |
cd81e915 | 3876 | PL_faketokens = 0; |
5db06880 NC |
3877 | s = SKIPSPACE0(s); |
3878 | TOKEN(PEG); /* make sure any #! line is accessible */ | |
3879 | } | |
3880 | s = SKIPSPACE0(s); | |
3881 | } | |
3882 | else { | |
3883 | /* if (PL_madskills && PL_lex_formbrack) { */ | |
3884 | d = s; | |
3885 | while (d < PL_bufend && *d != '\n') | |
3886 | d++; | |
3887 | if (d < PL_bufend) | |
3888 | d++; | |
3889 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
3890 | Perl_croak(aTHX_ "panic: input overflow"); | |
3891 | if (PL_madskills && CopLINE(PL_curcop) >= 1) { | |
cd81e915 | 3892 | if (!PL_thiswhite) |
6b29d1f5 | 3893 | PL_thiswhite = newSVpvs(""); |
5db06880 | 3894 | if (CopLINE(PL_curcop) == 1) { |
cd81e915 NC |
3895 | sv_setpvn(PL_thiswhite, "", 0); |
3896 | PL_faketokens = 0; | |
5db06880 | 3897 | } |
cd81e915 | 3898 | sv_catpvn(PL_thiswhite, s, d - s); |
5db06880 NC |
3899 | } |
3900 | s = d; | |
3901 | /* } | |
3902 | *s = '\0'; | |
3903 | PL_bufend = s; */ | |
3904 | } | |
3905 | #else | |
378cc40b | 3906 | *s = '\0'; |
3280af22 | 3907 | PL_bufend = s; |
5db06880 | 3908 | #endif |
a687059c | 3909 | } |
378cc40b LW |
3910 | goto retry; |
3911 | case '-': | |
79072805 | 3912 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 | 3913 | I32 ftst = 0; |
90771dc0 | 3914 | char tmp; |
e5edeb50 | 3915 | |
378cc40b | 3916 | s++; |
3280af22 | 3917 | PL_bufptr = s; |
748a9306 LW |
3918 | tmp = *s++; |
3919 | ||
bf4acbe4 | 3920 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
3921 | s++; |
3922 | ||
3923 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 3924 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
931e0695 | 3925 | DEBUG_T( { printbuf("### Saw unary minus before =>, forcing word %s\n", s); } ); |
748a9306 LW |
3926 | OPERATOR('-'); /* unary minus */ |
3927 | } | |
3280af22 | 3928 | PL_last_uni = PL_oldbufptr; |
748a9306 | 3929 | switch (tmp) { |
e5edeb50 JH |
3930 | case 'r': ftst = OP_FTEREAD; break; |
3931 | case 'w': ftst = OP_FTEWRITE; break; | |
3932 | case 'x': ftst = OP_FTEEXEC; break; | |
3933 | case 'o': ftst = OP_FTEOWNED; break; | |
3934 | case 'R': ftst = OP_FTRREAD; break; | |
3935 | case 'W': ftst = OP_FTRWRITE; break; | |
3936 | case 'X': ftst = OP_FTREXEC; break; | |
3937 | case 'O': ftst = OP_FTROWNED; break; | |
3938 | case 'e': ftst = OP_FTIS; break; | |
3939 | case 'z': ftst = OP_FTZERO; break; | |
3940 | case 's': ftst = OP_FTSIZE; break; | |
3941 | case 'f': ftst = OP_FTFILE; break; | |
3942 | case 'd': ftst = OP_FTDIR; break; | |
3943 | case 'l': ftst = OP_FTLINK; break; | |
3944 | case 'p': ftst = OP_FTPIPE; break; | |
3945 | case 'S': ftst = OP_FTSOCK; break; | |
3946 | case 'u': ftst = OP_FTSUID; break; | |
3947 | case 'g': ftst = OP_FTSGID; break; | |
3948 | case 'k': ftst = OP_FTSVTX; break; | |
3949 | case 'b': ftst = OP_FTBLK; break; | |
3950 | case 'c': ftst = OP_FTCHR; break; | |
3951 | case 't': ftst = OP_FTTTY; break; | |
3952 | case 'T': ftst = OP_FTTEXT; break; | |
3953 | case 'B': ftst = OP_FTBINARY; break; | |
3954 | case 'M': case 'A': case 'C': | |
fafc274c | 3955 | gv_fetchpvs("\024", GV_ADD|GV_NOTQUAL, SVt_PV); |
e5edeb50 JH |
3956 | switch (tmp) { |
3957 | case 'M': ftst = OP_FTMTIME; break; | |
3958 | case 'A': ftst = OP_FTATIME; break; | |
3959 | case 'C': ftst = OP_FTCTIME; break; | |
3960 | default: break; | |
3961 | } | |
3962 | break; | |
378cc40b | 3963 | default: |
378cc40b LW |
3964 | break; |
3965 | } | |
e5edeb50 | 3966 | if (ftst) { |
eb160463 | 3967 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 3968 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a18d764d | 3969 | "### Saw file test %c\n", (int)tmp); |
5f80b19c | 3970 | } ); |
e5edeb50 JH |
3971 | FTST(ftst); |
3972 | } | |
3973 | else { | |
3974 | /* Assume it was a minus followed by a one-letter named | |
3975 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 3976 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
17ad61e0 | 3977 | "### '-%c' looked like a file test but was not\n", |
4fccd7c6 | 3978 | (int) tmp); |
5f80b19c | 3979 | } ); |
3cf7b4c4 | 3980 | s = --PL_bufptr; |
e5edeb50 | 3981 | } |
378cc40b | 3982 | } |
90771dc0 NC |
3983 | { |
3984 | const char tmp = *s++; | |
3985 | if (*s == tmp) { | |
3986 | s++; | |
3987 | if (PL_expect == XOPERATOR) | |
3988 | TERM(POSTDEC); | |
3989 | else | |
3990 | OPERATOR(PREDEC); | |
3991 | } | |
3992 | else if (*s == '>') { | |
3993 | s++; | |
29595ff2 | 3994 | s = SKIPSPACE1(s); |
90771dc0 NC |
3995 | if (isIDFIRST_lazy_if(s,UTF)) { |
3996 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); | |
3997 | TOKEN(ARROW); | |
3998 | } | |
3999 | else if (*s == '$') | |
4000 | OPERATOR(ARROW); | |
4001 | else | |
4002 | TERM(ARROW); | |
4003 | } | |
3280af22 | 4004 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4005 | Aop(OP_SUBTRACT); |
4006 | else { | |
4007 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4008 | check_uni(); | |
4009 | OPERATOR('-'); /* unary minus */ | |
79072805 | 4010 | } |
2f3197b3 | 4011 | } |
79072805 | 4012 | |
378cc40b | 4013 | case '+': |
90771dc0 NC |
4014 | { |
4015 | const char tmp = *s++; | |
4016 | if (*s == tmp) { | |
4017 | s++; | |
4018 | if (PL_expect == XOPERATOR) | |
4019 | TERM(POSTINC); | |
4020 | else | |
4021 | OPERATOR(PREINC); | |
4022 | } | |
3280af22 | 4023 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4024 | Aop(OP_ADD); |
4025 | else { | |
4026 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4027 | check_uni(); | |
4028 | OPERATOR('+'); | |
4029 | } | |
2f3197b3 | 4030 | } |
a687059c | 4031 | |
378cc40b | 4032 | case '*': |
3280af22 NIS |
4033 | if (PL_expect != XOPERATOR) { |
4034 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
4035 | PL_expect = XOPERATOR; | |
4036 | force_ident(PL_tokenbuf, '*'); | |
4037 | if (!*PL_tokenbuf) | |
a0d0e21e | 4038 | PREREF('*'); |
79072805 | 4039 | TERM('*'); |
a687059c | 4040 | } |
79072805 LW |
4041 | s++; |
4042 | if (*s == '*') { | |
a687059c | 4043 | s++; |
79072805 | 4044 | PWop(OP_POW); |
a687059c | 4045 | } |
79072805 LW |
4046 | Mop(OP_MULTIPLY); |
4047 | ||
378cc40b | 4048 | case '%': |
3280af22 | 4049 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 4050 | ++s; |
4051 | Mop(OP_MODULO); | |
a687059c | 4052 | } |
3280af22 NIS |
4053 | PL_tokenbuf[0] = '%'; |
4054 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, TRUE); | |
4055 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 4056 | PREREF('%'); |
a687059c | 4057 | } |
3280af22 | 4058 | PL_pending_ident = '%'; |
bbce6d69 | 4059 | TERM('%'); |
a687059c | 4060 | |
378cc40b | 4061 | case '^': |
79072805 | 4062 | s++; |
a0d0e21e | 4063 | BOop(OP_BIT_XOR); |
79072805 | 4064 | case '[': |
3280af22 | 4065 | PL_lex_brackets++; |
79072805 | 4066 | /* FALL THROUGH */ |
378cc40b | 4067 | case '~': |
0d863452 RH |
4068 | if (s[1] == '~' |
4069 | && (PL_expect == XOPERATOR || PL_expect == XTERMORDORDOR) | |
ef89dcc3 | 4070 | && FEATURE_IS_ENABLED("~~")) |
0d863452 RH |
4071 | { |
4072 | s += 2; | |
4073 | Eop(OP_SMARTMATCH); | |
4074 | } | |
378cc40b | 4075 | case ',': |
90771dc0 NC |
4076 | { |
4077 | const char tmp = *s++; | |
4078 | OPERATOR(tmp); | |
4079 | } | |
a0d0e21e LW |
4080 | case ':': |
4081 | if (s[1] == ':') { | |
4082 | len = 0; | |
0bfa2a8a | 4083 | goto just_a_word_zero_gv; |
a0d0e21e LW |
4084 | } |
4085 | s++; | |
09bef843 SB |
4086 | switch (PL_expect) { |
4087 | OP *attrs; | |
5db06880 NC |
4088 | #ifdef PERL_MAD |
4089 | I32 stuffstart; | |
4090 | #endif | |
09bef843 SB |
4091 | case XOPERATOR: |
4092 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
4093 | break; | |
4094 | PL_bufptr = s; /* update in case we back off */ | |
4095 | goto grabattrs; | |
4096 | case XATTRBLOCK: | |
4097 | PL_expect = XBLOCK; | |
4098 | goto grabattrs; | |
4099 | case XATTRTERM: | |
4100 | PL_expect = XTERMBLOCK; | |
4101 | grabattrs: | |
5db06880 NC |
4102 | #ifdef PERL_MAD |
4103 | stuffstart = s - SvPVX(PL_linestr) - 1; | |
4104 | #endif | |
29595ff2 | 4105 | s = PEEKSPACE(s); |
5f66b61c | 4106 | attrs = NULL; |
7e2040f0 | 4107 | while (isIDFIRST_lazy_if(s,UTF)) { |
90771dc0 | 4108 | I32 tmp; |
5cc237b8 | 4109 | SV *sv; |
09bef843 | 4110 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 4111 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len, 0))) { |
f9829d6b GS |
4112 | if (tmp < 0) tmp = -tmp; |
4113 | switch (tmp) { | |
4114 | case KEY_or: | |
4115 | case KEY_and: | |
c963b151 | 4116 | case KEY_err: |
f9829d6b GS |
4117 | case KEY_for: |
4118 | case KEY_unless: | |
4119 | case KEY_if: | |
4120 | case KEY_while: | |
4121 | case KEY_until: | |
4122 | goto got_attrs; | |
4123 | default: | |
4124 | break; | |
4125 | } | |
4126 | } | |
5cc237b8 | 4127 | sv = newSVpvn(s, len); |
09bef843 SB |
4128 | if (*d == '(') { |
4129 | d = scan_str(d,TRUE,TRUE); | |
4130 | if (!d) { | |
09bef843 SB |
4131 | /* MUST advance bufptr here to avoid bogus |
4132 | "at end of line" context messages from yyerror(). | |
4133 | */ | |
4134 | PL_bufptr = s + len; | |
4135 | yyerror("Unterminated attribute parameter in attribute list"); | |
4136 | if (attrs) | |
4137 | op_free(attrs); | |
5cc237b8 | 4138 | sv_free(sv); |
bbf60fe6 | 4139 | return REPORT(0); /* EOF indicator */ |
09bef843 SB |
4140 | } |
4141 | } | |
4142 | if (PL_lex_stuff) { | |
09bef843 SB |
4143 | sv_catsv(sv, PL_lex_stuff); |
4144 | attrs = append_elem(OP_LIST, attrs, | |
4145 | newSVOP(OP_CONST, 0, sv)); | |
4146 | SvREFCNT_dec(PL_lex_stuff); | |
a0714e2c | 4147 | PL_lex_stuff = NULL; |
09bef843 SB |
4148 | } |
4149 | else { | |
5cc237b8 BS |
4150 | if (len == 6 && strnEQ(SvPVX(sv), "unique", len)) { |
4151 | sv_free(sv); | |
1108974d | 4152 | if (PL_in_my == KEY_our) { |
371fce9b DM |
4153 | #ifdef USE_ITHREADS |
4154 | GvUNIQUE_on(cGVOPx_gv(yylval.opval)); | |
4155 | #else | |
1108974d | 4156 | /* skip to avoid loading attributes.pm */ |
371fce9b | 4157 | #endif |
df9a6019 | 4158 | deprecate(":unique"); |
1108974d | 4159 | } |
bfed75c6 | 4160 | else |
371fce9b DM |
4161 | Perl_croak(aTHX_ "The 'unique' attribute may only be applied to 'our' variables"); |
4162 | } | |
4163 | ||
d3cea301 SB |
4164 | /* NOTE: any CV attrs applied here need to be part of |
4165 | the CVf_BUILTIN_ATTRS define in cv.h! */ | |
5cc237b8 BS |
4166 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "lvalue", len)) { |
4167 | sv_free(sv); | |
78f9721b | 4168 | CvLVALUE_on(PL_compcv); |
5cc237b8 BS |
4169 | } |
4170 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "locked", len)) { | |
4171 | sv_free(sv); | |
78f9721b | 4172 | CvLOCKED_on(PL_compcv); |
5cc237b8 BS |
4173 | } |
4174 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "method", len)) { | |
4175 | sv_free(sv); | |
78f9721b | 4176 | CvMETHOD_on(PL_compcv); |
5cc237b8 BS |
4177 | } |
4178 | else if (!PL_in_my && len == 9 && strnEQ(SvPVX(sv), "assertion", len)) { | |
4179 | sv_free(sv); | |
06492da6 | 4180 | CvASSERTION_on(PL_compcv); |
5cc237b8 | 4181 | } |
78f9721b SM |
4182 | /* After we've set the flags, it could be argued that |
4183 | we don't need to do the attributes.pm-based setting | |
4184 | process, and shouldn't bother appending recognized | |
d3cea301 SB |
4185 | flags. To experiment with that, uncomment the |
4186 | following "else". (Note that's already been | |
4187 | uncommented. That keeps the above-applied built-in | |
4188 | attributes from being intercepted (and possibly | |
4189 | rejected) by a package's attribute routines, but is | |
4190 | justified by the performance win for the common case | |
4191 | of applying only built-in attributes.) */ | |
0256094b | 4192 | else |
78f9721b SM |
4193 | attrs = append_elem(OP_LIST, attrs, |
4194 | newSVOP(OP_CONST, 0, | |
5cc237b8 | 4195 | sv)); |
09bef843 | 4196 | } |
29595ff2 | 4197 | s = PEEKSPACE(d); |
0120eecf | 4198 | if (*s == ':' && s[1] != ':') |
29595ff2 | 4199 | s = PEEKSPACE(s+1); |
0120eecf GS |
4200 | else if (s == d) |
4201 | break; /* require real whitespace or :'s */ | |
29595ff2 | 4202 | /* XXX losing whitespace on sequential attributes here */ |
09bef843 | 4203 | } |
90771dc0 NC |
4204 | { |
4205 | const char tmp | |
4206 | = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ | |
4207 | if (*s != ';' && *s != '}' && *s != tmp | |
4208 | && (tmp != '=' || *s != ')')) { | |
4209 | const char q = ((*s == '\'') ? '"' : '\''); | |
4210 | /* If here for an expression, and parsed no attrs, back | |
4211 | off. */ | |
4212 | if (tmp == '=' && !attrs) { | |
4213 | s = PL_bufptr; | |
4214 | break; | |
4215 | } | |
4216 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
4217 | context messages from yyerror(). | |
4218 | */ | |
4219 | PL_bufptr = s; | |
10edeb5d JH |
4220 | yyerror( (const char *) |
4221 | (*s | |
4222 | ? Perl_form(aTHX_ "Invalid separator character " | |
4223 | "%c%c%c in attribute list", q, *s, q) | |
4224 | : "Unterminated attribute list" ) ); | |
90771dc0 NC |
4225 | if (attrs) |
4226 | op_free(attrs); | |
4227 | OPERATOR(':'); | |
09bef843 | 4228 | } |
09bef843 | 4229 | } |
f9829d6b | 4230 | got_attrs: |
09bef843 | 4231 | if (attrs) { |
cd81e915 | 4232 | start_force(PL_curforce); |
9ded7720 | 4233 | NEXTVAL_NEXTTOKE.opval = attrs; |
cd81e915 | 4234 | CURMAD('_', PL_nextwhite); |
89122651 | 4235 | force_next(THING); |
5db06880 NC |
4236 | } |
4237 | #ifdef PERL_MAD | |
4238 | if (PL_madskills) { | |
cd81e915 | 4239 | PL_thistoken = newSVpvn(SvPVX(PL_linestr) + stuffstart, |
5db06880 | 4240 | (s - SvPVX(PL_linestr)) - stuffstart); |
09bef843 | 4241 | } |
5db06880 | 4242 | #endif |
09bef843 SB |
4243 | TOKEN(COLONATTR); |
4244 | } | |
a0d0e21e | 4245 | OPERATOR(':'); |
8990e307 LW |
4246 | case '(': |
4247 | s++; | |
3280af22 NIS |
4248 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
4249 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 4250 | else |
3280af22 | 4251 | PL_expect = XTERM; |
29595ff2 | 4252 | s = SKIPSPACE1(s); |
a0d0e21e | 4253 | TOKEN('('); |
378cc40b | 4254 | case ';': |
f4dd75d9 | 4255 | CLINE; |
90771dc0 NC |
4256 | { |
4257 | const char tmp = *s++; | |
4258 | OPERATOR(tmp); | |
4259 | } | |
378cc40b | 4260 | case ')': |
90771dc0 NC |
4261 | { |
4262 | const char tmp = *s++; | |
29595ff2 | 4263 | s = SKIPSPACE1(s); |
90771dc0 NC |
4264 | if (*s == '{') |
4265 | PREBLOCK(tmp); | |
4266 | TERM(tmp); | |
4267 | } | |
79072805 LW |
4268 | case ']': |
4269 | s++; | |
3280af22 | 4270 | if (PL_lex_brackets <= 0) |
d98d5fff | 4271 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 4272 | else |
3280af22 NIS |
4273 | --PL_lex_brackets; |
4274 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4275 | if (PL_lex_brackets == 0) { | |
a0d0e21e | 4276 | if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>')) |
3280af22 | 4277 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4278 | } |
4279 | } | |
4633a7c4 | 4280 | TERM(']'); |
79072805 LW |
4281 | case '{': |
4282 | leftbracket: | |
79072805 | 4283 | s++; |
3280af22 | 4284 | if (PL_lex_brackets > 100) { |
8edd5f42 | 4285 | Renew(PL_lex_brackstack, PL_lex_brackets + 10, char); |
8990e307 | 4286 | } |
3280af22 | 4287 | switch (PL_expect) { |
a0d0e21e | 4288 | case XTERM: |
3280af22 | 4289 | if (PL_lex_formbrack) { |
a0d0e21e LW |
4290 | s--; |
4291 | PRETERMBLOCK(DO); | |
4292 | } | |
3280af22 NIS |
4293 | if (PL_oldoldbufptr == PL_last_lop) |
4294 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4295 | else |
3280af22 | 4296 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 4297 | OPERATOR(HASHBRACK); |
a0d0e21e | 4298 | case XOPERATOR: |
bf4acbe4 | 4299 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 4300 | s++; |
44a8e56a | 4301 | d = s; |
3280af22 NIS |
4302 | PL_tokenbuf[0] = '\0'; |
4303 | if (d < PL_bufend && *d == '-') { | |
4304 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 4305 | d++; |
bf4acbe4 | 4306 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 4307 | d++; |
4308 | } | |
7e2040f0 | 4309 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 4310 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 4311 | FALSE, &len); |
bf4acbe4 | 4312 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
4313 | d++; |
4314 | if (*d == '}') { | |
f54cb97a | 4315 | const char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 4316 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
4317 | if (minus) | |
4318 | force_next('-'); | |
748a9306 LW |
4319 | } |
4320 | } | |
4321 | /* FALL THROUGH */ | |
09bef843 | 4322 | case XATTRBLOCK: |
748a9306 | 4323 | case XBLOCK: |
3280af22 NIS |
4324 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
4325 | PL_expect = XSTATE; | |
a0d0e21e | 4326 | break; |
09bef843 | 4327 | case XATTRTERM: |
a0d0e21e | 4328 | case XTERMBLOCK: |
3280af22 NIS |
4329 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
4330 | PL_expect = XSTATE; | |
a0d0e21e LW |
4331 | break; |
4332 | default: { | |
f54cb97a | 4333 | const char *t; |
3280af22 NIS |
4334 | if (PL_oldoldbufptr == PL_last_lop) |
4335 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4336 | else |
3280af22 | 4337 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
29595ff2 | 4338 | s = SKIPSPACE1(s); |
8452ff4b SB |
4339 | if (*s == '}') { |
4340 | if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) { | |
4341 | PL_expect = XTERM; | |
4342 | /* This hack is to get the ${} in the message. */ | |
4343 | PL_bufptr = s+1; | |
4344 | yyerror("syntax error"); | |
4345 | break; | |
4346 | } | |
a0d0e21e | 4347 | OPERATOR(HASHBRACK); |
8452ff4b | 4348 | } |
b8a4b1be GS |
4349 | /* This hack serves to disambiguate a pair of curlies |
4350 | * as being a block or an anon hash. Normally, expectation | |
4351 | * determines that, but in cases where we're not in a | |
4352 | * position to expect anything in particular (like inside | |
4353 | * eval"") we have to resolve the ambiguity. This code | |
4354 | * covers the case where the first term in the curlies is a | |
4355 | * quoted string. Most other cases need to be explicitly | |
a0288114 | 4356 | * disambiguated by prepending a "+" before the opening |
b8a4b1be GS |
4357 | * curly in order to force resolution as an anon hash. |
4358 | * | |
4359 | * XXX should probably propagate the outer expectation | |
4360 | * into eval"" to rely less on this hack, but that could | |
4361 | * potentially break current behavior of eval"". | |
4362 | * GSAR 97-07-21 | |
4363 | */ | |
4364 | t = s; | |
4365 | if (*s == '\'' || *s == '"' || *s == '`') { | |
4366 | /* common case: get past first string, handling escapes */ | |
3280af22 | 4367 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
4368 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
4369 | t++; | |
4370 | t++; | |
a0d0e21e | 4371 | } |
b8a4b1be | 4372 | else if (*s == 'q') { |
3280af22 | 4373 | if (++t < PL_bufend |
b8a4b1be | 4374 | && (!isALNUM(*t) |
3280af22 | 4375 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
4376 | && !isALNUM(*t)))) |
4377 | { | |
abc667d1 | 4378 | /* skip q//-like construct */ |
f54cb97a | 4379 | const char *tmps; |
b8a4b1be GS |
4380 | char open, close, term; |
4381 | I32 brackets = 1; | |
4382 | ||
3280af22 | 4383 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be | 4384 | t++; |
abc667d1 DM |
4385 | /* check for q => */ |
4386 | if (t+1 < PL_bufend && t[0] == '=' && t[1] == '>') { | |
4387 | OPERATOR(HASHBRACK); | |
4388 | } | |
b8a4b1be GS |
4389 | term = *t; |
4390 | open = term; | |
4391 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
4392 | term = tmps[5]; | |
4393 | close = term; | |
4394 | if (open == close) | |
3280af22 NIS |
4395 | for (t++; t < PL_bufend; t++) { |
4396 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 4397 | t++; |
6d07e5e9 | 4398 | else if (*t == open) |
b8a4b1be GS |
4399 | break; |
4400 | } | |
abc667d1 | 4401 | else { |
3280af22 NIS |
4402 | for (t++; t < PL_bufend; t++) { |
4403 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 4404 | t++; |
6d07e5e9 | 4405 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
4406 | break; |
4407 | else if (*t == open) | |
4408 | brackets++; | |
4409 | } | |
abc667d1 DM |
4410 | } |
4411 | t++; | |
b8a4b1be | 4412 | } |
abc667d1 DM |
4413 | else |
4414 | /* skip plain q word */ | |
4415 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) | |
4416 | t += UTF8SKIP(t); | |
a0d0e21e | 4417 | } |
7e2040f0 | 4418 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 4419 | t += UTF8SKIP(t); |
7e2040f0 | 4420 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 4421 | t += UTF8SKIP(t); |
a0d0e21e | 4422 | } |
3280af22 | 4423 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 4424 | t++; |
b8a4b1be GS |
4425 | /* if comma follows first term, call it an anon hash */ |
4426 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 4427 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 4428 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 4429 | OPERATOR(HASHBRACK); |
3280af22 | 4430 | if (PL_expect == XREF) |
4e4e412b | 4431 | PL_expect = XTERM; |
a0d0e21e | 4432 | else { |
3280af22 NIS |
4433 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
4434 | PL_expect = XSTATE; | |
a0d0e21e | 4435 | } |
8990e307 | 4436 | } |
a0d0e21e | 4437 | break; |
463ee0b2 | 4438 | } |
57843af0 | 4439 | yylval.ival = CopLINE(PL_curcop); |
79072805 | 4440 | if (isSPACE(*s) || *s == '#') |
3280af22 | 4441 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 4442 | TOKEN('{'); |
378cc40b | 4443 | case '}': |
79072805 LW |
4444 | rightbracket: |
4445 | s++; | |
3280af22 | 4446 | if (PL_lex_brackets <= 0) |
d98d5fff | 4447 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 4448 | else |
3280af22 | 4449 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 4450 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
4451 | PL_lex_formbrack = 0; |
4452 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4453 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
4454 | if (PL_expect & XFAKEBRACK) { |
4455 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
4456 | PL_lex_state = LEX_INTERPEND; |
4457 | PL_bufptr = s; | |
5db06880 NC |
4458 | #if 0 |
4459 | if (PL_madskills) { | |
cd81e915 | 4460 | if (!PL_thiswhite) |
6b29d1f5 | 4461 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4462 | sv_catpvn(PL_thiswhite,"}",1); |
5db06880 NC |
4463 | } |
4464 | #endif | |
cea2e8a9 | 4465 | return yylex(); /* ignore fake brackets */ |
79072805 | 4466 | } |
fa83b5b6 | 4467 | if (*s == '-' && s[1] == '>') |
3280af22 | 4468 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 4469 | else if (*s != '[' && *s != '{') |
3280af22 | 4470 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4471 | } |
4472 | } | |
9059aa12 LW |
4473 | if (PL_expect & XFAKEBRACK) { |
4474 | PL_expect &= XENUMMASK; | |
3280af22 | 4475 | PL_bufptr = s; |
cea2e8a9 | 4476 | return yylex(); /* ignore fake brackets */ |
748a9306 | 4477 | } |
cd81e915 | 4478 | start_force(PL_curforce); |
5db06880 NC |
4479 | if (PL_madskills) { |
4480 | curmad('X', newSVpvn(s-1,1)); | |
cd81e915 | 4481 | CURMAD('_', PL_thiswhite); |
5db06880 | 4482 | } |
79072805 | 4483 | force_next('}'); |
5db06880 | 4484 | #ifdef PERL_MAD |
cd81e915 | 4485 | if (!PL_thistoken) |
6b29d1f5 | 4486 | PL_thistoken = newSVpvs(""); |
5db06880 | 4487 | #endif |
79072805 | 4488 | TOKEN(';'); |
378cc40b LW |
4489 | case '&': |
4490 | s++; | |
90771dc0 | 4491 | if (*s++ == '&') |
a0d0e21e | 4492 | AOPERATOR(ANDAND); |
378cc40b | 4493 | s--; |
3280af22 | 4494 | if (PL_expect == XOPERATOR) { |
041457d9 DM |
4495 | if (PL_bufptr == PL_linestart && ckWARN(WARN_SEMICOLON) |
4496 | && isIDFIRST_lazy_if(s,UTF)) | |
7e2040f0 | 4497 | { |
57843af0 | 4498 | CopLINE_dec(PL_curcop); |
9014280d | 4499 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 4500 | CopLINE_inc(PL_curcop); |
463ee0b2 | 4501 | } |
79072805 | 4502 | BAop(OP_BIT_AND); |
463ee0b2 | 4503 | } |
79072805 | 4504 | |
3280af22 NIS |
4505 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
4506 | if (*PL_tokenbuf) { | |
4507 | PL_expect = XOPERATOR; | |
4508 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 4509 | } |
79072805 LW |
4510 | else |
4511 | PREREF('&'); | |
c07a80fd | 4512 | yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
4513 | TERM('&'); |
4514 | ||
378cc40b LW |
4515 | case '|': |
4516 | s++; | |
90771dc0 | 4517 | if (*s++ == '|') |
a0d0e21e | 4518 | AOPERATOR(OROR); |
378cc40b | 4519 | s--; |
79072805 | 4520 | BOop(OP_BIT_OR); |
378cc40b LW |
4521 | case '=': |
4522 | s++; | |
748a9306 | 4523 | { |
90771dc0 NC |
4524 | const char tmp = *s++; |
4525 | if (tmp == '=') | |
4526 | Eop(OP_EQ); | |
4527 | if (tmp == '>') | |
4528 | OPERATOR(','); | |
4529 | if (tmp == '~') | |
4530 | PMop(OP_MATCH); | |
4531 | if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX) | |
4532 | && strchr("+-*/%.^&|<",tmp)) | |
4533 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4534 | "Reversed %c= operator",(int)tmp); | |
4535 | s--; | |
4536 | if (PL_expect == XSTATE && isALPHA(tmp) && | |
4537 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
4538 | { | |
4539 | if (PL_in_eval && !PL_rsfp) { | |
4540 | d = PL_bufend; | |
4541 | while (s < d) { | |
4542 | if (*s++ == '\n') { | |
4543 | incline(s); | |
4544 | if (strnEQ(s,"=cut",4)) { | |
4545 | s = strchr(s,'\n'); | |
4546 | if (s) | |
4547 | s++; | |
4548 | else | |
4549 | s = d; | |
4550 | incline(s); | |
4551 | goto retry; | |
4552 | } | |
4553 | } | |
a5f75d66 | 4554 | } |
90771dc0 | 4555 | goto retry; |
a5f75d66 | 4556 | } |
5db06880 NC |
4557 | #ifdef PERL_MAD |
4558 | if (PL_madskills) { | |
cd81e915 | 4559 | if (!PL_thiswhite) |
6b29d1f5 | 4560 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4561 | sv_catpvn(PL_thiswhite, PL_linestart, |
5db06880 NC |
4562 | PL_bufend - PL_linestart); |
4563 | } | |
4564 | #endif | |
90771dc0 NC |
4565 | s = PL_bufend; |
4566 | PL_doextract = TRUE; | |
4567 | goto retry; | |
a5f75d66 | 4568 | } |
a0d0e21e | 4569 | } |
3280af22 | 4570 | if (PL_lex_brackets < PL_lex_formbrack) { |
c35e046a | 4571 | const char *t = s; |
51882d45 | 4572 | #ifdef PERL_STRICT_CR |
c35e046a | 4573 | while (SPACE_OR_TAB(*t)) |
51882d45 | 4574 | #else |
c35e046a | 4575 | while (SPACE_OR_TAB(*t) || *t == '\r') |
51882d45 | 4576 | #endif |
c35e046a | 4577 | t++; |
a0d0e21e LW |
4578 | if (*t == '\n' || *t == '#') { |
4579 | s--; | |
3280af22 | 4580 | PL_expect = XBLOCK; |
a0d0e21e LW |
4581 | goto leftbracket; |
4582 | } | |
79072805 | 4583 | } |
a0d0e21e LW |
4584 | yylval.ival = 0; |
4585 | OPERATOR(ASSIGNOP); | |
378cc40b LW |
4586 | case '!': |
4587 | s++; | |
90771dc0 NC |
4588 | { |
4589 | const char tmp = *s++; | |
4590 | if (tmp == '=') { | |
4591 | /* was this !=~ where !~ was meant? | |
4592 | * warn on m:!=~\s+([/?]|[msy]\W|tr\W): */ | |
4593 | ||
4594 | if (*s == '~' && ckWARN(WARN_SYNTAX)) { | |
4595 | const char *t = s+1; | |
4596 | ||
4597 | while (t < PL_bufend && isSPACE(*t)) | |
4598 | ++t; | |
4599 | ||
4600 | if (*t == '/' || *t == '?' || | |
4601 | ((*t == 'm' || *t == 's' || *t == 'y') | |
4602 | && !isALNUM(t[1])) || | |
4603 | (*t == 't' && t[1] == 'r' && !isALNUM(t[2]))) | |
4604 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4605 | "!=~ should be !~"); | |
4606 | } | |
4607 | Eop(OP_NE); | |
4608 | } | |
4609 | if (tmp == '~') | |
4610 | PMop(OP_NOT); | |
4611 | } | |
378cc40b LW |
4612 | s--; |
4613 | OPERATOR('!'); | |
4614 | case '<': | |
3280af22 | 4615 | if (PL_expect != XOPERATOR) { |
93a17b20 | 4616 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 4617 | check_uni(); |
79072805 LW |
4618 | if (s[1] == '<') |
4619 | s = scan_heredoc(s); | |
4620 | else | |
4621 | s = scan_inputsymbol(s); | |
4622 | TERM(sublex_start()); | |
378cc40b LW |
4623 | } |
4624 | s++; | |
90771dc0 NC |
4625 | { |
4626 | char tmp = *s++; | |
4627 | if (tmp == '<') | |
4628 | SHop(OP_LEFT_SHIFT); | |
4629 | if (tmp == '=') { | |
4630 | tmp = *s++; | |
4631 | if (tmp == '>') | |
4632 | Eop(OP_NCMP); | |
4633 | s--; | |
4634 | Rop(OP_LE); | |
4635 | } | |
395c3793 | 4636 | } |
378cc40b | 4637 | s--; |
79072805 | 4638 | Rop(OP_LT); |
378cc40b LW |
4639 | case '>': |
4640 | s++; | |
90771dc0 NC |
4641 | { |
4642 | const char tmp = *s++; | |
4643 | if (tmp == '>') | |
4644 | SHop(OP_RIGHT_SHIFT); | |
d4c19fe8 | 4645 | else if (tmp == '=') |
90771dc0 NC |
4646 | Rop(OP_GE); |
4647 | } | |
378cc40b | 4648 | s--; |
79072805 | 4649 | Rop(OP_GT); |
378cc40b LW |
4650 | |
4651 | case '$': | |
bbce6d69 | 4652 | CLINE; |
4653 | ||
3280af22 NIS |
4654 | if (PL_expect == XOPERATOR) { |
4655 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4656 | PL_expect = XTERM; | |
c445ea15 | 4657 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4658 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4659 | } |
8990e307 | 4660 | } |
a0d0e21e | 4661 | |
7e2040f0 | 4662 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-", s[2]))) { |
3280af22 | 4663 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
4664 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
4665 | sizeof PL_tokenbuf - 1, FALSE); | |
4666 | if (PL_expect == XOPERATOR) | |
4667 | no_op("Array length", s); | |
3280af22 | 4668 | if (!PL_tokenbuf[1]) |
a0d0e21e | 4669 | PREREF(DOLSHARP); |
3280af22 NIS |
4670 | PL_expect = XOPERATOR; |
4671 | PL_pending_ident = '#'; | |
463ee0b2 | 4672 | TOKEN(DOLSHARP); |
79072805 | 4673 | } |
bbce6d69 | 4674 | |
3280af22 | 4675 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
4676 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
4677 | sizeof PL_tokenbuf - 1, FALSE); | |
4678 | if (PL_expect == XOPERATOR) | |
4679 | no_op("Scalar", s); | |
3280af22 NIS |
4680 | if (!PL_tokenbuf[1]) { |
4681 | if (s == PL_bufend) | |
bbce6d69 | 4682 | yyerror("Final $ should be \\$ or $name"); |
4683 | PREREF('$'); | |
8990e307 | 4684 | } |
a0d0e21e | 4685 | |
bbce6d69 | 4686 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 4687 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
bbce6d69 | 4688 | yylval.opval = newSVOP(OP_CONST, 0, |
fc15ae8f | 4689 | newSViv(CopARYBASE_get(&PL_compiling))); |
bbce6d69 | 4690 | yylval.opval->op_private = OPpCONST_ARYBASE; |
4691 | TERM(THING); | |
4692 | } | |
4693 | ||
ff68c719 | 4694 | d = s; |
90771dc0 NC |
4695 | { |
4696 | const char tmp = *s; | |
4697 | if (PL_lex_state == LEX_NORMAL) | |
29595ff2 | 4698 | s = SKIPSPACE1(s); |
ff68c719 | 4699 | |
90771dc0 NC |
4700 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) |
4701 | && intuit_more(s)) { | |
4702 | if (*s == '[') { | |
4703 | PL_tokenbuf[0] = '@'; | |
4704 | if (ckWARN(WARN_SYNTAX)) { | |
c35e046a AL |
4705 | char *t = s+1; |
4706 | ||
4707 | while (isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$') | |
4708 | t++; | |
90771dc0 | 4709 | if (*t++ == ',') { |
29595ff2 | 4710 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
90771dc0 NC |
4711 | while (t < PL_bufend && *t != ']') |
4712 | t++; | |
9014280d | 4713 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
90771dc0 | 4714 | "Multidimensional syntax %.*s not supported", |
36c7798d | 4715 | (int)((t - PL_bufptr) + 1), PL_bufptr); |
90771dc0 | 4716 | } |
748a9306 | 4717 | } |
93a17b20 | 4718 | } |
90771dc0 NC |
4719 | else if (*s == '{') { |
4720 | char *t; | |
4721 | PL_tokenbuf[0] = '%'; | |
4722 | if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX) | |
4723 | && (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
4724 | { | |
4725 | char tmpbuf[sizeof PL_tokenbuf]; | |
c35e046a AL |
4726 | do { |
4727 | t++; | |
4728 | } while (isSPACE(*t)); | |
90771dc0 | 4729 | if (isIDFIRST_lazy_if(t,UTF)) { |
5f66b61c | 4730 | STRLEN dummylen; |
90771dc0 | 4731 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, |
5f66b61c | 4732 | &dummylen); |
c35e046a AL |
4733 | while (isSPACE(*t)) |
4734 | t++; | |
90771dc0 NC |
4735 | if (*t == ';' && get_cv(tmpbuf, FALSE)) |
4736 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4737 | "You need to quote \"%s\"", | |
4738 | tmpbuf); | |
4739 | } | |
4740 | } | |
4741 | } | |
93a17b20 | 4742 | } |
bbce6d69 | 4743 | |
90771dc0 NC |
4744 | PL_expect = XOPERATOR; |
4745 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { | |
4746 | const bool islop = (PL_last_lop == PL_oldoldbufptr); | |
4747 | if (!islop || PL_last_lop_op == OP_GREPSTART) | |
4748 | PL_expect = XOPERATOR; | |
4749 | else if (strchr("$@\"'`q", *s)) | |
4750 | PL_expect = XTERM; /* e.g. print $fh "foo" */ | |
4751 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) | |
4752 | PL_expect = XTERM; /* e.g. print $fh &sub */ | |
4753 | else if (isIDFIRST_lazy_if(s,UTF)) { | |
4754 | char tmpbuf[sizeof PL_tokenbuf]; | |
4755 | int t2; | |
4756 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
5458a98a | 4757 | if ((t2 = keyword(tmpbuf, len, 0))) { |
90771dc0 NC |
4758 | /* binary operators exclude handle interpretations */ |
4759 | switch (t2) { | |
4760 | case -KEY_x: | |
4761 | case -KEY_eq: | |
4762 | case -KEY_ne: | |
4763 | case -KEY_gt: | |
4764 | case -KEY_lt: | |
4765 | case -KEY_ge: | |
4766 | case -KEY_le: | |
4767 | case -KEY_cmp: | |
4768 | break; | |
4769 | default: | |
4770 | PL_expect = XTERM; /* e.g. print $fh length() */ | |
4771 | break; | |
4772 | } | |
4773 | } | |
4774 | else { | |
4775 | PL_expect = XTERM; /* e.g. print $fh subr() */ | |
84902520 TB |
4776 | } |
4777 | } | |
90771dc0 NC |
4778 | else if (isDIGIT(*s)) |
4779 | PL_expect = XTERM; /* e.g. print $fh 3 */ | |
4780 | else if (*s == '.' && isDIGIT(s[1])) | |
4781 | PL_expect = XTERM; /* e.g. print $fh .3 */ | |
4782 | else if ((*s == '?' || *s == '-' || *s == '+') | |
4783 | && !isSPACE(s[1]) && s[1] != '=') | |
4784 | PL_expect = XTERM; /* e.g. print $fh -1 */ | |
4785 | else if (*s == '/' && !isSPACE(s[1]) && s[1] != '=' | |
4786 | && s[1] != '/') | |
4787 | PL_expect = XTERM; /* e.g. print $fh /.../ | |
4788 | XXX except DORDOR operator | |
4789 | */ | |
4790 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) | |
4791 | && s[2] != '=') | |
4792 | PL_expect = XTERM; /* print $fh <<"EOF" */ | |
93a17b20 | 4793 | } |
bbce6d69 | 4794 | } |
3280af22 | 4795 | PL_pending_ident = '$'; |
79072805 | 4796 | TOKEN('$'); |
378cc40b LW |
4797 | |
4798 | case '@': | |
3280af22 | 4799 | if (PL_expect == XOPERATOR) |
bbce6d69 | 4800 | no_op("Array", s); |
3280af22 NIS |
4801 | PL_tokenbuf[0] = '@'; |
4802 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
4803 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 4804 | PREREF('@'); |
4805 | } | |
3280af22 | 4806 | if (PL_lex_state == LEX_NORMAL) |
29595ff2 | 4807 | s = SKIPSPACE1(s); |
3280af22 | 4808 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 4809 | if (*s == '{') |
3280af22 | 4810 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
4811 | |
4812 | /* Warn about @ where they meant $. */ | |
041457d9 DM |
4813 | if (*s == '[' || *s == '{') { |
4814 | if (ckWARN(WARN_SYNTAX)) { | |
f54cb97a | 4815 | const char *t = s + 1; |
7e2040f0 | 4816 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
4817 | t++; |
4818 | if (*t == '}' || *t == ']') { | |
4819 | t++; | |
29595ff2 | 4820 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
9014280d | 4821 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 4822 | "Scalar value %.*s better written as $%.*s", |
36c7798d DM |
4823 | (int)(t-PL_bufptr), PL_bufptr, |
4824 | (int)(t-PL_bufptr-1), PL_bufptr+1); | |
a0d0e21e | 4825 | } |
93a17b20 LW |
4826 | } |
4827 | } | |
463ee0b2 | 4828 | } |
3280af22 | 4829 | PL_pending_ident = '@'; |
79072805 | 4830 | TERM('@'); |
378cc40b | 4831 | |
c963b151 | 4832 | case '/': /* may be division, defined-or, or pattern */ |
6f33ba73 RGS |
4833 | if (PL_expect == XTERMORDORDOR && s[1] == '/') { |
4834 | s += 2; | |
4835 | AOPERATOR(DORDOR); | |
4836 | } | |
c963b151 BD |
4837 | case '?': /* may either be conditional or pattern */ |
4838 | if(PL_expect == XOPERATOR) { | |
90771dc0 | 4839 | char tmp = *s++; |
c963b151 BD |
4840 | if(tmp == '?') { |
4841 | OPERATOR('?'); | |
4842 | } | |
4843 | else { | |
4844 | tmp = *s++; | |
4845 | if(tmp == '/') { | |
4846 | /* A // operator. */ | |
4847 | AOPERATOR(DORDOR); | |
4848 | } | |
4849 | else { | |
4850 | s--; | |
4851 | Mop(OP_DIVIDE); | |
4852 | } | |
4853 | } | |
4854 | } | |
4855 | else { | |
4856 | /* Disable warning on "study /blah/" */ | |
4857 | if (PL_oldoldbufptr == PL_last_uni | |
4858 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
4859 | || memNE(PL_last_uni, "study", 5) | |
4860 | || isALNUM_lazy_if(PL_last_uni+5,UTF) | |
4861 | )) | |
4862 | check_uni(); | |
4863 | s = scan_pat(s,OP_MATCH); | |
4864 | TERM(sublex_start()); | |
4865 | } | |
378cc40b LW |
4866 | |
4867 | case '.': | |
51882d45 GS |
4868 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
4869 | #ifdef PERL_STRICT_CR | |
4870 | && s[1] == '\n' | |
4871 | #else | |
4872 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
4873 | #endif | |
4874 | && (s == PL_linestart || s[-1] == '\n') ) | |
4875 | { | |
3280af22 NIS |
4876 | PL_lex_formbrack = 0; |
4877 | PL_expect = XSTATE; | |
79072805 LW |
4878 | goto rightbracket; |
4879 | } | |
3280af22 | 4880 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
90771dc0 | 4881 | char tmp = *s++; |
a687059c LW |
4882 | if (*s == tmp) { |
4883 | s++; | |
2f3197b3 LW |
4884 | if (*s == tmp) { |
4885 | s++; | |
79072805 | 4886 | yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
4887 | } |
4888 | else | |
79072805 | 4889 | yylval.ival = 0; |
378cc40b | 4890 | OPERATOR(DOTDOT); |
a687059c | 4891 | } |
3280af22 | 4892 | if (PL_expect != XOPERATOR) |
2f3197b3 | 4893 | check_uni(); |
79072805 | 4894 | Aop(OP_CONCAT); |
378cc40b LW |
4895 | } |
4896 | /* FALL THROUGH */ | |
4897 | case '0': case '1': case '2': case '3': case '4': | |
4898 | case '5': case '6': case '7': case '8': case '9': | |
b73d6f50 | 4899 | s = scan_num(s, &yylval); |
931e0695 | 4900 | DEBUG_T( { printbuf("### Saw number in %s\n", s); } ); |
3280af22 | 4901 | if (PL_expect == XOPERATOR) |
8990e307 | 4902 | no_op("Number",s); |
79072805 LW |
4903 | TERM(THING); |
4904 | ||
4905 | case '\'': | |
5db06880 | 4906 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 4907 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
4908 | if (PL_expect == XOPERATOR) { |
4909 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4910 | PL_expect = XTERM; | |
c445ea15 | 4911 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4912 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4913 | } |
463ee0b2 | 4914 | else |
8990e307 | 4915 | no_op("String",s); |
463ee0b2 | 4916 | } |
79072805 | 4917 | if (!s) |
d4c19fe8 | 4918 | missingterm(NULL); |
79072805 LW |
4919 | yylval.ival = OP_CONST; |
4920 | TERM(sublex_start()); | |
4921 | ||
4922 | case '"': | |
5db06880 | 4923 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 4924 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
4925 | if (PL_expect == XOPERATOR) { |
4926 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4927 | PL_expect = XTERM; | |
c445ea15 | 4928 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4929 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4930 | } |
463ee0b2 | 4931 | else |
8990e307 | 4932 | no_op("String",s); |
463ee0b2 | 4933 | } |
79072805 | 4934 | if (!s) |
d4c19fe8 | 4935 | missingterm(NULL); |
4633a7c4 | 4936 | yylval.ival = OP_CONST; |
cfd0369c NC |
4937 | /* FIXME. I think that this can be const if char *d is replaced by |
4938 | more localised variables. */ | |
3280af22 | 4939 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
63cd0674 | 4940 | if (*d == '$' || *d == '@' || *d == '\\' || !UTF8_IS_INVARIANT((U8)*d)) { |
4633a7c4 LW |
4941 | yylval.ival = OP_STRINGIFY; |
4942 | break; | |
4943 | } | |
4944 | } | |
79072805 LW |
4945 | TERM(sublex_start()); |
4946 | ||
4947 | case '`': | |
5db06880 | 4948 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 4949 | DEBUG_T( { printbuf("### Saw backtick string before %s\n", s); } ); |
3280af22 | 4950 | if (PL_expect == XOPERATOR) |
8990e307 | 4951 | no_op("Backticks",s); |
79072805 | 4952 | if (!s) |
d4c19fe8 | 4953 | missingterm(NULL); |
79072805 LW |
4954 | yylval.ival = OP_BACKTICK; |
4955 | set_csh(); | |
4956 | TERM(sublex_start()); | |
4957 | ||
4958 | case '\\': | |
4959 | s++; | |
041457d9 | 4960 | if (PL_lex_inwhat && isDIGIT(*s) && ckWARN(WARN_SYNTAX)) |
9014280d | 4961 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression", |
599cee73 | 4962 | *s, *s); |
3280af22 | 4963 | if (PL_expect == XOPERATOR) |
8990e307 | 4964 | no_op("Backslash",s); |
79072805 LW |
4965 | OPERATOR(REFGEN); |
4966 | ||
a7cb1f99 | 4967 | case 'v': |
e526c9e6 | 4968 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
f54cb97a | 4969 | char *start = s + 2; |
dd629d5b | 4970 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
4971 | start++; |
4972 | if (*start == '.' && isDIGIT(start[1])) { | |
b73d6f50 | 4973 | s = scan_num(s, &yylval); |
a7cb1f99 GS |
4974 | TERM(THING); |
4975 | } | |
e526c9e6 | 4976 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
6f33ba73 RGS |
4977 | else if (!isALPHA(*start) && (PL_expect == XTERM |
4978 | || PL_expect == XREF || PL_expect == XSTATE | |
4979 | || PL_expect == XTERMORDORDOR)) { | |
d4c19fe8 | 4980 | /* XXX Use gv_fetchpvn rather than stomping on a const string */ |
f54cb97a | 4981 | const char c = *start; |
e526c9e6 GS |
4982 | GV *gv; |
4983 | *start = '\0'; | |
f776e3cd | 4984 | gv = gv_fetchpv(s, 0, SVt_PVCV); |
e526c9e6 GS |
4985 | *start = c; |
4986 | if (!gv) { | |
b73d6f50 | 4987 | s = scan_num(s, &yylval); |
e526c9e6 GS |
4988 | TERM(THING); |
4989 | } | |
4990 | } | |
a7cb1f99 GS |
4991 | } |
4992 | goto keylookup; | |
79072805 | 4993 | case 'x': |
3280af22 | 4994 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
4995 | s++; |
4996 | Mop(OP_REPEAT); | |
2f3197b3 | 4997 | } |
79072805 LW |
4998 | goto keylookup; |
4999 | ||
378cc40b | 5000 | case '_': |
79072805 LW |
5001 | case 'a': case 'A': |
5002 | case 'b': case 'B': | |
5003 | case 'c': case 'C': | |
5004 | case 'd': case 'D': | |
5005 | case 'e': case 'E': | |
5006 | case 'f': case 'F': | |
5007 | case 'g': case 'G': | |
5008 | case 'h': case 'H': | |
5009 | case 'i': case 'I': | |
5010 | case 'j': case 'J': | |
5011 | case 'k': case 'K': | |
5012 | case 'l': case 'L': | |
5013 | case 'm': case 'M': | |
5014 | case 'n': case 'N': | |
5015 | case 'o': case 'O': | |
5016 | case 'p': case 'P': | |
5017 | case 'q': case 'Q': | |
5018 | case 'r': case 'R': | |
5019 | case 's': case 'S': | |
5020 | case 't': case 'T': | |
5021 | case 'u': case 'U': | |
a7cb1f99 | 5022 | case 'V': |
79072805 LW |
5023 | case 'w': case 'W': |
5024 | case 'X': | |
5025 | case 'y': case 'Y': | |
5026 | case 'z': case 'Z': | |
5027 | ||
49dc05e3 | 5028 | keylookup: { |
90771dc0 | 5029 | I32 tmp; |
10edeb5d JH |
5030 | |
5031 | orig_keyword = 0; | |
5032 | gv = NULL; | |
5033 | gvp = NULL; | |
49dc05e3 | 5034 | |
3280af22 NIS |
5035 | PL_bufptr = s; |
5036 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 5037 | |
5038 | /* Some keywords can be followed by any delimiter, including ':' */ | |
155aba94 GS |
5039 | tmp = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
5040 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || | |
5041 | (PL_tokenbuf[0] == 'q' && | |
5042 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 5043 | |
5044 | /* x::* is just a word, unless x is "CORE" */ | |
3280af22 | 5045 | if (!tmp && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
5046 | goto just_a_word; |
5047 | ||
3643fb5f | 5048 | d = s; |
3280af22 | 5049 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
5050 | d++; /* no comments skipped here, or s### is misparsed */ |
5051 | ||
5052 | /* Is this a label? */ | |
3280af22 NIS |
5053 | if (!tmp && PL_expect == XSTATE |
5054 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
8ebc5c01 | 5055 | s = d + 1; |
3280af22 | 5056 | yylval.pval = savepv(PL_tokenbuf); |
8ebc5c01 | 5057 | CLINE; |
5058 | TOKEN(LABEL); | |
3643fb5f CS |
5059 | } |
5060 | ||
5061 | /* Check for keywords */ | |
5458a98a | 5062 | tmp = keyword(PL_tokenbuf, len, 0); |
748a9306 LW |
5063 | |
5064 | /* Is this a word before a => operator? */ | |
1c3923b3 | 5065 | if (*d == '=' && d[1] == '>') { |
748a9306 | 5066 | CLINE; |
d0a148a6 NC |
5067 | yylval.opval |
5068 | = (OP*)newSVOP(OP_CONST, 0, | |
5069 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
748a9306 LW |
5070 | yylval.opval->op_private = OPpCONST_BARE; |
5071 | TERM(WORD); | |
5072 | } | |
5073 | ||
a0d0e21e | 5074 | if (tmp < 0) { /* second-class keyword? */ |
cbbf8932 AL |
5075 | GV *ogv = NULL; /* override (winner) */ |
5076 | GV *hgv = NULL; /* hidden (loser) */ | |
3280af22 | 5077 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 5078 | CV *cv; |
90e5519e | 5079 | if ((gv = gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVCV)) && |
56f7f34b CS |
5080 | (cv = GvCVu(gv))) |
5081 | { | |
5082 | if (GvIMPORTED_CV(gv)) | |
5083 | ogv = gv; | |
5084 | else if (! CvMETHOD(cv)) | |
5085 | hgv = gv; | |
5086 | } | |
5087 | if (!ogv && | |
3280af22 NIS |
5088 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
5089 | (gv = *gvp) != (GV*)&PL_sv_undef && | |
56f7f34b CS |
5090 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
5091 | { | |
5092 | ogv = gv; | |
5093 | } | |
5094 | } | |
5095 | if (ogv) { | |
30fe34ed | 5096 | orig_keyword = tmp; |
56f7f34b | 5097 | tmp = 0; /* overridden by import or by GLOBAL */ |
6e7b2336 GS |
5098 | } |
5099 | else if (gv && !gvp | |
5100 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
d0456cad | 5101 | && GvCVu(gv) |
017a3ce5 | 5102 | && !hv_fetchs(GvHVn(PL_incgv), "Thread.pm", FALSE)) |
6e7b2336 GS |
5103 | { |
5104 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 5105 | } |
56f7f34b CS |
5106 | else { /* no override */ |
5107 | tmp = -tmp; | |
ac206dc8 | 5108 | if (tmp == KEY_dump && ckWARN(WARN_MISC)) { |
9014280d | 5109 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
ac206dc8 RGS |
5110 | "dump() better written as CORE::dump()"); |
5111 | } | |
a0714e2c | 5112 | gv = NULL; |
56f7f34b | 5113 | gvp = 0; |
041457d9 DM |
5114 | if (hgv && tmp != KEY_x && tmp != KEY_CORE |
5115 | && ckWARN(WARN_AMBIGUOUS)) /* never ambiguous */ | |
9014280d | 5116 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 5117 | "Ambiguous call resolved as CORE::%s(), %s", |
2f3ca594 | 5118 | GvENAME(hgv), "qualify as such or use &"); |
49dc05e3 | 5119 | } |
a0d0e21e LW |
5120 | } |
5121 | ||
5122 | reserved_word: | |
5123 | switch (tmp) { | |
79072805 LW |
5124 | |
5125 | default: /* not a keyword */ | |
0bfa2a8a NC |
5126 | /* Trade off - by using this evil construction we can pull the |
5127 | variable gv into the block labelled keylookup. If not, then | |
5128 | we have to give it function scope so that the goto from the | |
5129 | earlier ':' case doesn't bypass the initialisation. */ | |
5130 | if (0) { | |
5131 | just_a_word_zero_gv: | |
5132 | gv = NULL; | |
5133 | gvp = NULL; | |
8bee0991 | 5134 | orig_keyword = 0; |
0bfa2a8a | 5135 | } |
93a17b20 | 5136 | just_a_word: { |
96e4d5b1 | 5137 | SV *sv; |
ce29ac45 | 5138 | int pkgname = 0; |
f54cb97a | 5139 | const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
5069cc75 | 5140 | CV *cv; |
5db06880 | 5141 | #ifdef PERL_MAD |
cd81e915 | 5142 | SV *nextPL_nextwhite = 0; |
5db06880 NC |
5143 | #endif |
5144 | ||
8990e307 LW |
5145 | |
5146 | /* Get the rest if it looks like a package qualifier */ | |
5147 | ||
155aba94 | 5148 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 5149 | STRLEN morelen; |
3280af22 | 5150 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
5151 | TRUE, &morelen); |
5152 | if (!morelen) | |
cea2e8a9 | 5153 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 5154 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 5155 | len += morelen; |
ce29ac45 | 5156 | pkgname = 1; |
a0d0e21e | 5157 | } |
8990e307 | 5158 | |
3280af22 NIS |
5159 | if (PL_expect == XOPERATOR) { |
5160 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 5161 | CopLINE_dec(PL_curcop); |
9014280d | 5162 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 5163 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
5164 | } |
5165 | else | |
54310121 | 5166 | no_op("Bareword",s); |
463ee0b2 | 5167 | } |
8990e307 | 5168 | |
c3e0f903 GS |
5169 | /* Look for a subroutine with this name in current package, |
5170 | unless name is "Foo::", in which case Foo is a bearword | |
5171 | (and a package name). */ | |
5172 | ||
5db06880 | 5173 | if (len > 2 && !PL_madskills && |
3280af22 | 5174 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 5175 | { |
f776e3cd | 5176 | if (ckWARN(WARN_BAREWORD) |
90e5519e | 5177 | && ! gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVHV)) |
9014280d | 5178 | Perl_warner(aTHX_ packWARN(WARN_BAREWORD), |
599cee73 | 5179 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 5180 | PL_tokenbuf); |
c3e0f903 | 5181 | len -= 2; |
3280af22 | 5182 | PL_tokenbuf[len] = '\0'; |
a0714e2c | 5183 | gv = NULL; |
c3e0f903 GS |
5184 | gvp = 0; |
5185 | } | |
5186 | else { | |
62d55b22 NC |
5187 | if (!gv) { |
5188 | /* Mustn't actually add anything to a symbol table. | |
5189 | But also don't want to "initialise" any placeholder | |
5190 | constants that might already be there into full | |
5191 | blown PVGVs with attached PVCV. */ | |
90e5519e NC |
5192 | gv = gv_fetchpvn_flags(PL_tokenbuf, len, |
5193 | GV_NOADD_NOINIT, SVt_PVCV); | |
62d55b22 | 5194 | } |
b3d904f3 | 5195 | len = 0; |
c3e0f903 GS |
5196 | } |
5197 | ||
5198 | /* if we saw a global override before, get the right name */ | |
8990e307 | 5199 | |
49dc05e3 | 5200 | if (gvp) { |
396482e1 | 5201 | sv = newSVpvs("CORE::GLOBAL::"); |
3280af22 | 5202 | sv_catpv(sv,PL_tokenbuf); |
49dc05e3 | 5203 | } |
8a7a129d NC |
5204 | else { |
5205 | /* If len is 0, newSVpv does strlen(), which is correct. | |
5206 | If len is non-zero, then it will be the true length, | |
5207 | and so the scalar will be created correctly. */ | |
5208 | sv = newSVpv(PL_tokenbuf,len); | |
5209 | } | |
5db06880 | 5210 | #ifdef PERL_MAD |
cd81e915 NC |
5211 | if (PL_madskills && !PL_thistoken) { |
5212 | char *start = SvPVX(PL_linestr) + PL_realtokenstart; | |
5213 | PL_thistoken = newSVpv(start,s - start); | |
5214 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
5215 | } |
5216 | #endif | |
8990e307 | 5217 | |
a0d0e21e LW |
5218 | /* Presume this is going to be a bareword of some sort. */ |
5219 | ||
5220 | CLINE; | |
49dc05e3 | 5221 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
a0d0e21e | 5222 | yylval.opval->op_private = OPpCONST_BARE; |
8f8cf39c JH |
5223 | /* UTF-8 package name? */ |
5224 | if (UTF && !IN_BYTES && | |
95a20fc0 | 5225 | is_utf8_string((U8*)SvPVX_const(sv), SvCUR(sv))) |
8f8cf39c | 5226 | SvUTF8_on(sv); |
a0d0e21e | 5227 | |
c3e0f903 GS |
5228 | /* And if "Foo::", then that's what it certainly is. */ |
5229 | ||
5230 | if (len) | |
5231 | goto safe_bareword; | |
5232 | ||
5069cc75 NC |
5233 | /* Do the explicit type check so that we don't need to force |
5234 | the initialisation of the symbol table to have a real GV. | |
5235 | Beware - gv may not really be a PVGV, cv may not really be | |
5236 | a PVCV, (because of the space optimisations that gv_init | |
5237 | understands) But they're true if for this symbol there is | |
5238 | respectively a typeglob and a subroutine. | |
5239 | */ | |
5240 | cv = gv ? ((SvTYPE(gv) == SVt_PVGV) | |
5241 | /* Real typeglob, so get the real subroutine: */ | |
5242 | ? GvCVu(gv) | |
5243 | /* A proxy for a subroutine in this package? */ | |
5244 | : SvOK(gv) ? (CV *) gv : NULL) | |
5245 | : NULL; | |
5246 | ||
8990e307 LW |
5247 | /* See if it's the indirect object for a list operator. */ |
5248 | ||
3280af22 NIS |
5249 | if (PL_oldoldbufptr && |
5250 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
5251 | (PL_oldoldbufptr == PL_last_lop |
5252 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 5253 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
5254 | (PL_expect == XREF || |
5255 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 5256 | { |
748a9306 LW |
5257 | bool immediate_paren = *s == '('; |
5258 | ||
a0d0e21e | 5259 | /* (Now we can afford to cross potential line boundary.) */ |
cd81e915 | 5260 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5db06880 | 5261 | #ifdef PERL_MAD |
cd81e915 | 5262 | PL_nextwhite = nextPL_nextwhite; /* assume no & deception */ |
5db06880 | 5263 | #endif |
a0d0e21e LW |
5264 | |
5265 | /* Two barewords in a row may indicate method call. */ | |
5266 | ||
62d55b22 NC |
5267 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && |
5268 | (tmp = intuit_method(s, gv, cv))) | |
bbf60fe6 | 5269 | return REPORT(tmp); |
a0d0e21e LW |
5270 | |
5271 | /* If not a declared subroutine, it's an indirect object. */ | |
5272 | /* (But it's an indir obj regardless for sort.) */ | |
7294df96 | 5273 | /* Also, if "_" follows a filetest operator, it's a bareword */ |
a0d0e21e | 5274 | |
7294df96 RGS |
5275 | if ( |
5276 | ( !immediate_paren && (PL_last_lop_op == OP_SORT || | |
5069cc75 | 5277 | ((!gv || !cv) && |
a9ef352a | 5278 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 5279 | PL_last_lop_op != OP_GREPSTART)))) |
7294df96 RGS |
5280 | || (PL_tokenbuf[0] == '_' && PL_tokenbuf[1] == '\0' |
5281 | && ((PL_opargs[PL_last_lop_op] & OA_CLASS_MASK) == OA_FILESTATOP)) | |
5282 | ) | |
a9ef352a | 5283 | { |
3280af22 | 5284 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 5285 | goto bareword; |
93a17b20 LW |
5286 | } |
5287 | } | |
8990e307 | 5288 | |
3280af22 | 5289 | PL_expect = XOPERATOR; |
5db06880 NC |
5290 | #ifdef PERL_MAD |
5291 | if (isSPACE(*s)) | |
cd81e915 NC |
5292 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5293 | PL_nextwhite = nextPL_nextwhite; | |
5db06880 | 5294 | #else |
8990e307 | 5295 | s = skipspace(s); |
5db06880 | 5296 | #endif |
1c3923b3 GS |
5297 | |
5298 | /* Is this a word before a => operator? */ | |
ce29ac45 | 5299 | if (*s == '=' && s[1] == '>' && !pkgname) { |
1c3923b3 GS |
5300 | CLINE; |
5301 | sv_setpv(((SVOP*)yylval.opval)->op_sv, PL_tokenbuf); | |
0064a8a9 | 5302 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
7948272d | 5303 | SvUTF8_on(((SVOP*)yylval.opval)->op_sv); |
1c3923b3 GS |
5304 | TERM(WORD); |
5305 | } | |
5306 | ||
5307 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 5308 | if (*s == '(') { |
79072805 | 5309 | CLINE; |
5069cc75 | 5310 | if (cv) { |
c35e046a AL |
5311 | d = s + 1; |
5312 | while (SPACE_OR_TAB(*d)) | |
5313 | d++; | |
62d55b22 | 5314 | if (*d == ')' && (sv = gv_const_sv(gv))) { |
96e4d5b1 | 5315 | s = d + 1; |
5db06880 NC |
5316 | #ifdef PERL_MAD |
5317 | if (PL_madskills) { | |
cd81e915 NC |
5318 | char *par = SvPVX(PL_linestr) + PL_realtokenstart; |
5319 | sv_catpvn(PL_thistoken, par, s - par); | |
5320 | if (PL_nextwhite) { | |
5321 | sv_free(PL_nextwhite); | |
5322 | PL_nextwhite = 0; | |
5db06880 NC |
5323 | } |
5324 | } | |
5325 | #endif | |
96e4d5b1 | 5326 | goto its_constant; |
5327 | } | |
5328 | } | |
5db06880 NC |
5329 | #ifdef PERL_MAD |
5330 | if (PL_madskills) { | |
cd81e915 NC |
5331 | PL_nextwhite = PL_thiswhite; |
5332 | PL_thiswhite = 0; | |
5db06880 | 5333 | } |
cd81e915 | 5334 | start_force(PL_curforce); |
5db06880 | 5335 | #endif |
9ded7720 | 5336 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 5337 | PL_expect = XOPERATOR; |
5db06880 NC |
5338 | #ifdef PERL_MAD |
5339 | if (PL_madskills) { | |
cd81e915 NC |
5340 | PL_nextwhite = nextPL_nextwhite; |
5341 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5342 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5343 | } |
5344 | #endif | |
93a17b20 | 5345 | force_next(WORD); |
c07a80fd | 5346 | yylval.ival = 0; |
463ee0b2 | 5347 | TOKEN('&'); |
79072805 | 5348 | } |
93a17b20 | 5349 | |
a0d0e21e | 5350 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 5351 | |
62d55b22 | 5352 | if ((*s == '$' || *s == '{') && (!gv || !cv)) { |
3280af22 NIS |
5353 | PL_last_lop = PL_oldbufptr; |
5354 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 5355 | PREBLOCK(METHOD); |
463ee0b2 LW |
5356 | } |
5357 | ||
8990e307 LW |
5358 | /* If followed by a bareword, see if it looks like indir obj. */ |
5359 | ||
30fe34ed RGS |
5360 | if (!orig_keyword |
5361 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
62d55b22 | 5362 | && (tmp = intuit_method(s, gv, cv))) |
bbf60fe6 | 5363 | return REPORT(tmp); |
93a17b20 | 5364 | |
8990e307 LW |
5365 | /* Not a method, so call it a subroutine (if defined) */ |
5366 | ||
5069cc75 | 5367 | if (cv) { |
0453d815 | 5368 | if (lastchar == '-' && ckWARN_d(WARN_AMBIGUOUS)) |
9014280d | 5369 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5370 | "Ambiguous use of -%s resolved as -&%s()", |
3280af22 | 5371 | PL_tokenbuf, PL_tokenbuf); |
89bfa8cd | 5372 | /* Check for a constant sub */ |
62d55b22 | 5373 | if ((sv = gv_const_sv(gv))) { |
96e4d5b1 | 5374 | its_constant: |
5375 | SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv); | |
b37c2d43 | 5376 | ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc_simple(sv); |
96e4d5b1 | 5377 | yylval.opval->op_private = 0; |
5378 | TOKEN(WORD); | |
89bfa8cd | 5379 | } |
5380 | ||
a5f75d66 | 5381 | /* Resolve to GV now. */ |
62d55b22 | 5382 | if (SvTYPE(gv) != SVt_PVGV) { |
b3d904f3 | 5383 | gv = gv_fetchpv(PL_tokenbuf, 0, SVt_PVCV); |
62d55b22 NC |
5384 | assert (SvTYPE(gv) == SVt_PVGV); |
5385 | /* cv must have been some sort of placeholder, so | |
5386 | now needs replacing with a real code reference. */ | |
5387 | cv = GvCV(gv); | |
5388 | } | |
5389 | ||
a5f75d66 AD |
5390 | op_free(yylval.opval); |
5391 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
9675f7ac | 5392 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
7a52d87a | 5393 | PL_last_lop = PL_oldbufptr; |
bf848113 | 5394 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 | 5395 | /* Is there a prototype? */ |
5db06880 NC |
5396 | if ( |
5397 | #ifdef PERL_MAD | |
5398 | cv && | |
5399 | #endif | |
d9f2850e RGS |
5400 | SvPOK(cv)) |
5401 | { | |
5f66b61c AL |
5402 | STRLEN protolen; |
5403 | const char *proto = SvPV_const((SV*)cv, protolen); | |
5404 | if (!protolen) | |
4633a7c4 | 5405 | TERM(FUNC0SUB); |
8c28b960 | 5406 | if ((*proto == '$' || *proto == '_') && proto[1] == '\0') |
4633a7c4 | 5407 | OPERATOR(UNIOPSUB); |
0f5d0394 AE |
5408 | while (*proto == ';') |
5409 | proto++; | |
7a52d87a | 5410 | if (*proto == '&' && *s == '{') { |
10edeb5d JH |
5411 | sv_setpv(PL_subname, |
5412 | (const char *) | |
5413 | (PL_curstash ? | |
5414 | "__ANON__" : "__ANON__::__ANON__")); | |
4633a7c4 LW |
5415 | PREBLOCK(LSTOPSUB); |
5416 | } | |
a9ef352a | 5417 | } |
5db06880 NC |
5418 | #ifdef PERL_MAD |
5419 | { | |
5420 | if (PL_madskills) { | |
cd81e915 NC |
5421 | PL_nextwhite = PL_thiswhite; |
5422 | PL_thiswhite = 0; | |
5db06880 | 5423 | } |
cd81e915 | 5424 | start_force(PL_curforce); |
5db06880 NC |
5425 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
5426 | PL_expect = XTERM; | |
5427 | if (PL_madskills) { | |
cd81e915 NC |
5428 | PL_nextwhite = nextPL_nextwhite; |
5429 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5430 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5431 | } |
5432 | force_next(WORD); | |
5433 | TOKEN(NOAMP); | |
5434 | } | |
5435 | } | |
5436 | ||
5437 | /* Guess harder when madskills require "best effort". */ | |
5438 | if (PL_madskills && (!gv || !GvCVu(gv))) { | |
5439 | int probable_sub = 0; | |
5440 | if (strchr("\"'`$@%0123456789!*+{[<", *s)) | |
5441 | probable_sub = 1; | |
5442 | else if (isALPHA(*s)) { | |
5443 | char tmpbuf[1024]; | |
5444 | STRLEN tmplen; | |
5445 | d = s; | |
5446 | d = scan_word(d, tmpbuf, sizeof tmpbuf, TRUE, &tmplen); | |
5458a98a | 5447 | if (!keyword(tmpbuf, tmplen, 0)) |
5db06880 NC |
5448 | probable_sub = 1; |
5449 | else { | |
5450 | while (d < PL_bufend && isSPACE(*d)) | |
5451 | d++; | |
5452 | if (*d == '=' && d[1] == '>') | |
5453 | probable_sub = 1; | |
5454 | } | |
5455 | } | |
5456 | if (probable_sub) { | |
5457 | gv = gv_fetchpv(PL_tokenbuf, TRUE, SVt_PVCV); | |
5458 | op_free(yylval.opval); | |
5459 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
5460 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; | |
5461 | PL_last_lop = PL_oldbufptr; | |
5462 | PL_last_lop_op = OP_ENTERSUB; | |
cd81e915 NC |
5463 | PL_nextwhite = PL_thiswhite; |
5464 | PL_thiswhite = 0; | |
5465 | start_force(PL_curforce); | |
5db06880 NC |
5466 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
5467 | PL_expect = XTERM; | |
cd81e915 NC |
5468 | PL_nextwhite = nextPL_nextwhite; |
5469 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5470 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5471 | force_next(WORD); |
5472 | TOKEN(NOAMP); | |
5473 | } | |
5474 | #else | |
9ded7720 | 5475 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 5476 | PL_expect = XTERM; |
8990e307 LW |
5477 | force_next(WORD); |
5478 | TOKEN(NOAMP); | |
5db06880 | 5479 | #endif |
8990e307 | 5480 | } |
748a9306 | 5481 | |
8990e307 LW |
5482 | /* Call it a bare word */ |
5483 | ||
5603f27d GS |
5484 | if (PL_hints & HINT_STRICT_SUBS) |
5485 | yylval.opval->op_private |= OPpCONST_STRICT; | |
5486 | else { | |
5487 | bareword: | |
041457d9 DM |
5488 | if (lastchar != '-') { |
5489 | if (ckWARN(WARN_RESERVED)) { | |
c35e046a AL |
5490 | d = PL_tokenbuf; |
5491 | while (isLOWER(*d)) | |
5492 | d++; | |
238ae712 | 5493 | if (!*d && !gv_stashpv(PL_tokenbuf,FALSE)) |
9014280d | 5494 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
5495 | PL_tokenbuf); |
5496 | } | |
748a9306 LW |
5497 | } |
5498 | } | |
c3e0f903 GS |
5499 | |
5500 | safe_bareword: | |
3792a11b NC |
5501 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&') |
5502 | && ckWARN_d(WARN_AMBIGUOUS)) { | |
9014280d | 5503 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5504 | "Operator or semicolon missing before %c%s", |
3280af22 | 5505 | lastchar, PL_tokenbuf); |
9014280d | 5506 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5507 | "Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
5508 | lastchar, lastchar); |
5509 | } | |
93a17b20 | 5510 | TOKEN(WORD); |
79072805 | 5511 | } |
79072805 | 5512 | |
68dc0745 | 5513 | case KEY___FILE__: |
46fc3d4c | 5514 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 5515 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 5516 | TERM(THING); |
5517 | ||
79072805 | 5518 | case KEY___LINE__: |
cf2093f6 | 5519 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 5520 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 5521 | TERM(THING); |
68dc0745 | 5522 | |
5523 | case KEY___PACKAGE__: | |
5524 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, | |
3280af22 | 5525 | (PL_curstash |
5aaec2b4 | 5526 | ? newSVhek(HvNAME_HEK(PL_curstash)) |
3280af22 | 5527 | : &PL_sv_undef)); |
79072805 | 5528 | TERM(THING); |
79072805 | 5529 | |
e50aee73 | 5530 | case KEY___DATA__: |
79072805 LW |
5531 | case KEY___END__: { |
5532 | GV *gv; | |
3280af22 | 5533 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
bfed75c6 | 5534 | const char *pname = "main"; |
3280af22 | 5535 | if (PL_tokenbuf[2] == 'D') |
bfcb3514 | 5536 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
f776e3cd NC |
5537 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD, |
5538 | SVt_PVIO); | |
a5f75d66 | 5539 | GvMULTI_on(gv); |
79072805 | 5540 | if (!GvIO(gv)) |
a0d0e21e | 5541 | GvIOp(gv) = newIO(); |
3280af22 | 5542 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
5543 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
5544 | { | |
f54cb97a | 5545 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
5546 | fcntl(fd,F_SETFD,fd >= 3); |
5547 | } | |
79072805 | 5548 | #endif |
fd049845 | 5549 | /* Mark this internal pseudo-handle as clean */ |
5550 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
3280af22 | 5551 | if (PL_preprocess) |
50952442 | 5552 | IoTYPE(GvIOp(gv)) = IoTYPE_PIPE; |
3280af22 | 5553 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 5554 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 5555 | else |
50952442 | 5556 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
5557 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
5558 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 5559 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 5560 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
5561 | if (PL_bufend-PL_bufptr > 2 |
5562 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
5563 | { |
5564 | Off_t loc = 0; | |
50952442 | 5565 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
5566 | loc = PerlIO_tell(PL_rsfp); |
5567 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
5568 | } | |
2986a63f JH |
5569 | #ifdef NETWARE |
5570 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
5571 | #else | |
c39cd008 | 5572 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 5573 | #endif /* NETWARE */ |
1143fce0 JH |
5574 | #ifdef PERLIO_IS_STDIO /* really? */ |
5575 | # if defined(__BORLANDC__) | |
cb359b41 JH |
5576 | /* XXX see note in do_binmode() */ |
5577 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
5578 | # endif |
5579 | #endif | |
c39cd008 GS |
5580 | if (loc > 0) |
5581 | PerlIO_seek(PL_rsfp, loc, 0); | |
5582 | } | |
5583 | } | |
5584 | #endif | |
7948272d | 5585 | #ifdef PERLIO_LAYERS |
52d2e0f4 JH |
5586 | if (!IN_BYTES) { |
5587 | if (UTF) | |
5588 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
5589 | else if (PL_encoding) { | |
5590 | SV *name; | |
5591 | dSP; | |
5592 | ENTER; | |
5593 | SAVETMPS; | |
5594 | PUSHMARK(sp); | |
5595 | EXTEND(SP, 1); | |
5596 | XPUSHs(PL_encoding); | |
5597 | PUTBACK; | |
5598 | call_method("name", G_SCALAR); | |
5599 | SPAGAIN; | |
5600 | name = POPs; | |
5601 | PUTBACK; | |
bfed75c6 | 5602 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
52d2e0f4 | 5603 | Perl_form(aTHX_ ":encoding(%"SVf")", |
95b63a38 | 5604 | (void*)name)); |
52d2e0f4 JH |
5605 | FREETMPS; |
5606 | LEAVE; | |
5607 | } | |
5608 | } | |
7948272d | 5609 | #endif |
5db06880 NC |
5610 | #ifdef PERL_MAD |
5611 | if (PL_madskills) { | |
cd81e915 NC |
5612 | if (PL_realtokenstart >= 0) { |
5613 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; | |
5614 | if (!PL_endwhite) | |
6b29d1f5 | 5615 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
5616 | sv_catsv(PL_endwhite, PL_thiswhite); |
5617 | PL_thiswhite = 0; | |
5618 | sv_catpvn(PL_endwhite, tstart, PL_bufend - tstart); | |
5619 | PL_realtokenstart = -1; | |
5db06880 | 5620 | } |
cd81e915 NC |
5621 | while ((s = filter_gets(PL_endwhite, PL_rsfp, |
5622 | SvCUR(PL_endwhite))) != Nullch) ; | |
5db06880 NC |
5623 | } |
5624 | #endif | |
4608196e | 5625 | PL_rsfp = NULL; |
79072805 LW |
5626 | } |
5627 | goto fake_eof; | |
e929a76b | 5628 | } |
de3bb511 | 5629 | |
8990e307 | 5630 | case KEY_AUTOLOAD: |
ed6116ce | 5631 | case KEY_DESTROY: |
79072805 | 5632 | case KEY_BEGIN: |
3c10abe3 | 5633 | case KEY_UNITCHECK: |
7d30b5c4 | 5634 | case KEY_CHECK: |
7d07dbc2 | 5635 | case KEY_INIT: |
7d30b5c4 | 5636 | case KEY_END: |
3280af22 NIS |
5637 | if (PL_expect == XSTATE) { |
5638 | s = PL_bufptr; | |
93a17b20 | 5639 | goto really_sub; |
79072805 LW |
5640 | } |
5641 | goto just_a_word; | |
5642 | ||
a0d0e21e LW |
5643 | case KEY_CORE: |
5644 | if (*s == ':' && s[1] == ':') { | |
5645 | s += 2; | |
748a9306 | 5646 | d = s; |
3280af22 | 5647 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 5648 | if (!(tmp = keyword(PL_tokenbuf, len, 0))) |
6798c92b | 5649 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); |
a0d0e21e LW |
5650 | if (tmp < 0) |
5651 | tmp = -tmp; | |
850e8516 | 5652 | else if (tmp == KEY_require || tmp == KEY_do) |
a72a1c8b | 5653 | /* that's a way to remember we saw "CORE::" */ |
850e8516 | 5654 | orig_keyword = tmp; |
a0d0e21e LW |
5655 | goto reserved_word; |
5656 | } | |
5657 | goto just_a_word; | |
5658 | ||
463ee0b2 LW |
5659 | case KEY_abs: |
5660 | UNI(OP_ABS); | |
5661 | ||
79072805 LW |
5662 | case KEY_alarm: |
5663 | UNI(OP_ALARM); | |
5664 | ||
5665 | case KEY_accept: | |
a0d0e21e | 5666 | LOP(OP_ACCEPT,XTERM); |
79072805 | 5667 | |
463ee0b2 LW |
5668 | case KEY_and: |
5669 | OPERATOR(ANDOP); | |
5670 | ||
79072805 | 5671 | case KEY_atan2: |
a0d0e21e | 5672 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 5673 | |
79072805 | 5674 | case KEY_bind: |
a0d0e21e | 5675 | LOP(OP_BIND,XTERM); |
79072805 LW |
5676 | |
5677 | case KEY_binmode: | |
1c1fc3ea | 5678 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
5679 | |
5680 | case KEY_bless: | |
a0d0e21e | 5681 | LOP(OP_BLESS,XTERM); |
79072805 | 5682 | |
0d863452 RH |
5683 | case KEY_break: |
5684 | FUN0(OP_BREAK); | |
5685 | ||
79072805 LW |
5686 | case KEY_chop: |
5687 | UNI(OP_CHOP); | |
5688 | ||
5689 | case KEY_continue: | |
0d863452 RH |
5690 | /* When 'use switch' is in effect, continue has a dual |
5691 | life as a control operator. */ | |
5692 | { | |
ef89dcc3 | 5693 | if (!FEATURE_IS_ENABLED("switch")) |
0d863452 RH |
5694 | PREBLOCK(CONTINUE); |
5695 | else { | |
5696 | /* We have to disambiguate the two senses of | |
5697 | "continue". If the next token is a '{' then | |
5698 | treat it as the start of a continue block; | |
5699 | otherwise treat it as a control operator. | |
5700 | */ | |
5701 | s = skipspace(s); | |
5702 | if (*s == '{') | |
79072805 | 5703 | PREBLOCK(CONTINUE); |
0d863452 RH |
5704 | else |
5705 | FUN0(OP_CONTINUE); | |
5706 | } | |
5707 | } | |
79072805 LW |
5708 | |
5709 | case KEY_chdir: | |
fafc274c NC |
5710 | /* may use HOME */ |
5711 | (void)gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV); | |
79072805 LW |
5712 | UNI(OP_CHDIR); |
5713 | ||
5714 | case KEY_close: | |
5715 | UNI(OP_CLOSE); | |
5716 | ||
5717 | case KEY_closedir: | |
5718 | UNI(OP_CLOSEDIR); | |
5719 | ||
5720 | case KEY_cmp: | |
5721 | Eop(OP_SCMP); | |
5722 | ||
5723 | case KEY_caller: | |
5724 | UNI(OP_CALLER); | |
5725 | ||
5726 | case KEY_crypt: | |
5727 | #ifdef FCRYPT | |
f4c556ac GS |
5728 | if (!PL_cryptseen) { |
5729 | PL_cryptseen = TRUE; | |
de3bb511 | 5730 | init_des(); |
f4c556ac | 5731 | } |
a687059c | 5732 | #endif |
a0d0e21e | 5733 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
5734 | |
5735 | case KEY_chmod: | |
a0d0e21e | 5736 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
5737 | |
5738 | case KEY_chown: | |
a0d0e21e | 5739 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
5740 | |
5741 | case KEY_connect: | |
a0d0e21e | 5742 | LOP(OP_CONNECT,XTERM); |
79072805 | 5743 | |
463ee0b2 LW |
5744 | case KEY_chr: |
5745 | UNI(OP_CHR); | |
5746 | ||
79072805 LW |
5747 | case KEY_cos: |
5748 | UNI(OP_COS); | |
5749 | ||
5750 | case KEY_chroot: | |
5751 | UNI(OP_CHROOT); | |
5752 | ||
0d863452 RH |
5753 | case KEY_default: |
5754 | PREBLOCK(DEFAULT); | |
5755 | ||
79072805 | 5756 | case KEY_do: |
29595ff2 | 5757 | s = SKIPSPACE1(s); |
79072805 | 5758 | if (*s == '{') |
a0d0e21e | 5759 | PRETERMBLOCK(DO); |
79072805 | 5760 | if (*s != '\'') |
89c5585f | 5761 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
850e8516 RGS |
5762 | if (orig_keyword == KEY_do) { |
5763 | orig_keyword = 0; | |
5764 | yylval.ival = 1; | |
5765 | } | |
5766 | else | |
5767 | yylval.ival = 0; | |
378cc40b | 5768 | OPERATOR(DO); |
79072805 LW |
5769 | |
5770 | case KEY_die: | |
3280af22 | 5771 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 5772 | LOP(OP_DIE,XTERM); |
79072805 LW |
5773 | |
5774 | case KEY_defined: | |
5775 | UNI(OP_DEFINED); | |
5776 | ||
5777 | case KEY_delete: | |
a0d0e21e | 5778 | UNI(OP_DELETE); |
79072805 LW |
5779 | |
5780 | case KEY_dbmopen: | |
5c1737d1 | 5781 | gv_fetchpvs("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
a0d0e21e | 5782 | LOP(OP_DBMOPEN,XTERM); |
79072805 LW |
5783 | |
5784 | case KEY_dbmclose: | |
5785 | UNI(OP_DBMCLOSE); | |
5786 | ||
5787 | case KEY_dump: | |
a0d0e21e | 5788 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5789 | LOOPX(OP_DUMP); |
5790 | ||
5791 | case KEY_else: | |
5792 | PREBLOCK(ELSE); | |
5793 | ||
5794 | case KEY_elsif: | |
57843af0 | 5795 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5796 | OPERATOR(ELSIF); |
5797 | ||
5798 | case KEY_eq: | |
5799 | Eop(OP_SEQ); | |
5800 | ||
a0d0e21e LW |
5801 | case KEY_exists: |
5802 | UNI(OP_EXISTS); | |
4e553d73 | 5803 | |
79072805 | 5804 | case KEY_exit: |
5db06880 NC |
5805 | if (PL_madskills) |
5806 | UNI(OP_INT); | |
79072805 LW |
5807 | UNI(OP_EXIT); |
5808 | ||
5809 | case KEY_eval: | |
29595ff2 | 5810 | s = SKIPSPACE1(s); |
3280af22 | 5811 | PL_expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 5812 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
5813 | |
5814 | case KEY_eof: | |
5815 | UNI(OP_EOF); | |
5816 | ||
c963b151 BD |
5817 | case KEY_err: |
5818 | OPERATOR(DOROP); | |
5819 | ||
79072805 LW |
5820 | case KEY_exp: |
5821 | UNI(OP_EXP); | |
5822 | ||
5823 | case KEY_each: | |
5824 | UNI(OP_EACH); | |
5825 | ||
5826 | case KEY_exec: | |
5827 | set_csh(); | |
a0d0e21e | 5828 | LOP(OP_EXEC,XREF); |
79072805 LW |
5829 | |
5830 | case KEY_endhostent: | |
5831 | FUN0(OP_EHOSTENT); | |
5832 | ||
5833 | case KEY_endnetent: | |
5834 | FUN0(OP_ENETENT); | |
5835 | ||
5836 | case KEY_endservent: | |
5837 | FUN0(OP_ESERVENT); | |
5838 | ||
5839 | case KEY_endprotoent: | |
5840 | FUN0(OP_EPROTOENT); | |
5841 | ||
5842 | case KEY_endpwent: | |
5843 | FUN0(OP_EPWENT); | |
5844 | ||
5845 | case KEY_endgrent: | |
5846 | FUN0(OP_EGRENT); | |
5847 | ||
5848 | case KEY_for: | |
5849 | case KEY_foreach: | |
57843af0 | 5850 | yylval.ival = CopLINE(PL_curcop); |
29595ff2 | 5851 | s = SKIPSPACE1(s); |
7e2040f0 | 5852 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 5853 | char *p = s; |
5db06880 NC |
5854 | #ifdef PERL_MAD |
5855 | int soff = s - SvPVX(PL_linestr); /* for skipspace realloc */ | |
5856 | #endif | |
5857 | ||
3280af22 | 5858 | if ((PL_bufend - p) >= 3 && |
55497cff | 5859 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
5860 | p += 2; | |
77ca0c92 LW |
5861 | else if ((PL_bufend - p) >= 4 && |
5862 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
5863 | p += 3; | |
29595ff2 | 5864 | p = PEEKSPACE(p); |
7e2040f0 | 5865 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
5866 | p = scan_ident(p, PL_bufend, |
5867 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
29595ff2 | 5868 | p = PEEKSPACE(p); |
77ca0c92 LW |
5869 | } |
5870 | if (*p != '$') | |
cea2e8a9 | 5871 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
5db06880 NC |
5872 | #ifdef PERL_MAD |
5873 | s = SvPVX(PL_linestr) + soff; | |
5874 | #endif | |
55497cff | 5875 | } |
79072805 LW |
5876 | OPERATOR(FOR); |
5877 | ||
5878 | case KEY_formline: | |
a0d0e21e | 5879 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
5880 | |
5881 | case KEY_fork: | |
5882 | FUN0(OP_FORK); | |
5883 | ||
5884 | case KEY_fcntl: | |
a0d0e21e | 5885 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
5886 | |
5887 | case KEY_fileno: | |
5888 | UNI(OP_FILENO); | |
5889 | ||
5890 | case KEY_flock: | |
a0d0e21e | 5891 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
5892 | |
5893 | case KEY_gt: | |
5894 | Rop(OP_SGT); | |
5895 | ||
5896 | case KEY_ge: | |
5897 | Rop(OP_SGE); | |
5898 | ||
5899 | case KEY_grep: | |
2c38e13d | 5900 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
5901 | |
5902 | case KEY_goto: | |
a0d0e21e | 5903 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5904 | LOOPX(OP_GOTO); |
5905 | ||
5906 | case KEY_gmtime: | |
5907 | UNI(OP_GMTIME); | |
5908 | ||
5909 | case KEY_getc: | |
6f33ba73 | 5910 | UNIDOR(OP_GETC); |
79072805 LW |
5911 | |
5912 | case KEY_getppid: | |
5913 | FUN0(OP_GETPPID); | |
5914 | ||
5915 | case KEY_getpgrp: | |
5916 | UNI(OP_GETPGRP); | |
5917 | ||
5918 | case KEY_getpriority: | |
a0d0e21e | 5919 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
5920 | |
5921 | case KEY_getprotobyname: | |
5922 | UNI(OP_GPBYNAME); | |
5923 | ||
5924 | case KEY_getprotobynumber: | |
a0d0e21e | 5925 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
5926 | |
5927 | case KEY_getprotoent: | |
5928 | FUN0(OP_GPROTOENT); | |
5929 | ||
5930 | case KEY_getpwent: | |
5931 | FUN0(OP_GPWENT); | |
5932 | ||
5933 | case KEY_getpwnam: | |
ff68c719 | 5934 | UNI(OP_GPWNAM); |
79072805 LW |
5935 | |
5936 | case KEY_getpwuid: | |
ff68c719 | 5937 | UNI(OP_GPWUID); |
79072805 LW |
5938 | |
5939 | case KEY_getpeername: | |
5940 | UNI(OP_GETPEERNAME); | |
5941 | ||
5942 | case KEY_gethostbyname: | |
5943 | UNI(OP_GHBYNAME); | |
5944 | ||
5945 | case KEY_gethostbyaddr: | |
a0d0e21e | 5946 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
5947 | |
5948 | case KEY_gethostent: | |
5949 | FUN0(OP_GHOSTENT); | |
5950 | ||
5951 | case KEY_getnetbyname: | |
5952 | UNI(OP_GNBYNAME); | |
5953 | ||
5954 | case KEY_getnetbyaddr: | |
a0d0e21e | 5955 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
5956 | |
5957 | case KEY_getnetent: | |
5958 | FUN0(OP_GNETENT); | |
5959 | ||
5960 | case KEY_getservbyname: | |
a0d0e21e | 5961 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
5962 | |
5963 | case KEY_getservbyport: | |
a0d0e21e | 5964 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
5965 | |
5966 | case KEY_getservent: | |
5967 | FUN0(OP_GSERVENT); | |
5968 | ||
5969 | case KEY_getsockname: | |
5970 | UNI(OP_GETSOCKNAME); | |
5971 | ||
5972 | case KEY_getsockopt: | |
a0d0e21e | 5973 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
5974 | |
5975 | case KEY_getgrent: | |
5976 | FUN0(OP_GGRENT); | |
5977 | ||
5978 | case KEY_getgrnam: | |
ff68c719 | 5979 | UNI(OP_GGRNAM); |
79072805 LW |
5980 | |
5981 | case KEY_getgrgid: | |
ff68c719 | 5982 | UNI(OP_GGRGID); |
79072805 LW |
5983 | |
5984 | case KEY_getlogin: | |
5985 | FUN0(OP_GETLOGIN); | |
5986 | ||
0d863452 RH |
5987 | case KEY_given: |
5988 | yylval.ival = CopLINE(PL_curcop); | |
5989 | OPERATOR(GIVEN); | |
5990 | ||
93a17b20 | 5991 | case KEY_glob: |
a0d0e21e LW |
5992 | set_csh(); |
5993 | LOP(OP_GLOB,XTERM); | |
93a17b20 | 5994 | |
79072805 LW |
5995 | case KEY_hex: |
5996 | UNI(OP_HEX); | |
5997 | ||
5998 | case KEY_if: | |
57843af0 | 5999 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6000 | OPERATOR(IF); |
6001 | ||
6002 | case KEY_index: | |
a0d0e21e | 6003 | LOP(OP_INDEX,XTERM); |
79072805 LW |
6004 | |
6005 | case KEY_int: | |
6006 | UNI(OP_INT); | |
6007 | ||
6008 | case KEY_ioctl: | |
a0d0e21e | 6009 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
6010 | |
6011 | case KEY_join: | |
a0d0e21e | 6012 | LOP(OP_JOIN,XTERM); |
79072805 LW |
6013 | |
6014 | case KEY_keys: | |
6015 | UNI(OP_KEYS); | |
6016 | ||
6017 | case KEY_kill: | |
a0d0e21e | 6018 | LOP(OP_KILL,XTERM); |
79072805 LW |
6019 | |
6020 | case KEY_last: | |
a0d0e21e | 6021 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 6022 | LOOPX(OP_LAST); |
4e553d73 | 6023 | |
79072805 LW |
6024 | case KEY_lc: |
6025 | UNI(OP_LC); | |
6026 | ||
6027 | case KEY_lcfirst: | |
6028 | UNI(OP_LCFIRST); | |
6029 | ||
6030 | case KEY_local: | |
09bef843 | 6031 | yylval.ival = 0; |
79072805 LW |
6032 | OPERATOR(LOCAL); |
6033 | ||
6034 | case KEY_length: | |
6035 | UNI(OP_LENGTH); | |
6036 | ||
6037 | case KEY_lt: | |
6038 | Rop(OP_SLT); | |
6039 | ||
6040 | case KEY_le: | |
6041 | Rop(OP_SLE); | |
6042 | ||
6043 | case KEY_localtime: | |
6044 | UNI(OP_LOCALTIME); | |
6045 | ||
6046 | case KEY_log: | |
6047 | UNI(OP_LOG); | |
6048 | ||
6049 | case KEY_link: | |
a0d0e21e | 6050 | LOP(OP_LINK,XTERM); |
79072805 LW |
6051 | |
6052 | case KEY_listen: | |
a0d0e21e | 6053 | LOP(OP_LISTEN,XTERM); |
79072805 | 6054 | |
c0329465 MB |
6055 | case KEY_lock: |
6056 | UNI(OP_LOCK); | |
6057 | ||
79072805 LW |
6058 | case KEY_lstat: |
6059 | UNI(OP_LSTAT); | |
6060 | ||
6061 | case KEY_m: | |
8782bef2 | 6062 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
6063 | TERM(sublex_start()); |
6064 | ||
a0d0e21e | 6065 | case KEY_map: |
2c38e13d | 6066 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 6067 | |
79072805 | 6068 | case KEY_mkdir: |
a0d0e21e | 6069 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
6070 | |
6071 | case KEY_msgctl: | |
a0d0e21e | 6072 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
6073 | |
6074 | case KEY_msgget: | |
a0d0e21e | 6075 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
6076 | |
6077 | case KEY_msgrcv: | |
a0d0e21e | 6078 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
6079 | |
6080 | case KEY_msgsnd: | |
a0d0e21e | 6081 | LOP(OP_MSGSND,XTERM); |
79072805 | 6082 | |
77ca0c92 | 6083 | case KEY_our: |
93a17b20 | 6084 | case KEY_my: |
952306ac | 6085 | case KEY_state: |
77ca0c92 | 6086 | PL_in_my = tmp; |
29595ff2 | 6087 | s = SKIPSPACE1(s); |
7e2040f0 | 6088 | if (isIDFIRST_lazy_if(s,UTF)) { |
5db06880 NC |
6089 | #ifdef PERL_MAD |
6090 | char* start = s; | |
6091 | #endif | |
3280af22 | 6092 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
6093 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
6094 | goto really_sub; | |
def3634b | 6095 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 6096 | if (!PL_in_my_stash) { |
c750a3ec | 6097 | char tmpbuf[1024]; |
3280af22 | 6098 | PL_bufptr = s; |
d9fad198 | 6099 | my_snprintf(tmpbuf, sizeof(tmpbuf), "No such class %.1000s", PL_tokenbuf); |
c750a3ec MB |
6100 | yyerror(tmpbuf); |
6101 | } | |
5db06880 NC |
6102 | #ifdef PERL_MAD |
6103 | if (PL_madskills) { /* just add type to declarator token */ | |
cd81e915 NC |
6104 | sv_catsv(PL_thistoken, PL_nextwhite); |
6105 | PL_nextwhite = 0; | |
6106 | sv_catpvn(PL_thistoken, start, s - start); | |
5db06880 NC |
6107 | } |
6108 | #endif | |
c750a3ec | 6109 | } |
09bef843 | 6110 | yylval.ival = 1; |
55497cff | 6111 | OPERATOR(MY); |
93a17b20 | 6112 | |
79072805 | 6113 | case KEY_next: |
a0d0e21e | 6114 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6115 | LOOPX(OP_NEXT); |
6116 | ||
6117 | case KEY_ne: | |
6118 | Eop(OP_SNE); | |
6119 | ||
a0d0e21e | 6120 | case KEY_no: |
468aa647 | 6121 | s = tokenize_use(0, s); |
a0d0e21e LW |
6122 | OPERATOR(USE); |
6123 | ||
6124 | case KEY_not: | |
29595ff2 | 6125 | if (*s == '(' || (s = SKIPSPACE1(s), *s == '(')) |
2d2e263d LW |
6126 | FUN1(OP_NOT); |
6127 | else | |
6128 | OPERATOR(NOTOP); | |
a0d0e21e | 6129 | |
79072805 | 6130 | case KEY_open: |
29595ff2 | 6131 | s = SKIPSPACE1(s); |
7e2040f0 | 6132 | if (isIDFIRST_lazy_if(s,UTF)) { |
f54cb97a | 6133 | const char *t; |
c35e046a AL |
6134 | for (d = s; isALNUM_lazy_if(d,UTF);) |
6135 | d++; | |
6136 | for (t=d; isSPACE(*t);) | |
6137 | t++; | |
e2ab214b | 6138 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) |
66fbe8fb HS |
6139 | /* [perl #16184] */ |
6140 | && !(t[0] == '=' && t[1] == '>') | |
6141 | ) { | |
5f66b61c | 6142 | int parms_len = (int)(d-s); |
9014280d | 6143 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 6144 | "Precedence problem: open %.*s should be open(%.*s)", |
5f66b61c | 6145 | parms_len, s, parms_len, s); |
66fbe8fb | 6146 | } |
93a17b20 | 6147 | } |
a0d0e21e | 6148 | LOP(OP_OPEN,XTERM); |
79072805 | 6149 | |
463ee0b2 | 6150 | case KEY_or: |
a0d0e21e | 6151 | yylval.ival = OP_OR; |
463ee0b2 LW |
6152 | OPERATOR(OROP); |
6153 | ||
79072805 LW |
6154 | case KEY_ord: |
6155 | UNI(OP_ORD); | |
6156 | ||
6157 | case KEY_oct: | |
6158 | UNI(OP_OCT); | |
6159 | ||
6160 | case KEY_opendir: | |
a0d0e21e | 6161 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
6162 | |
6163 | case KEY_print: | |
3280af22 | 6164 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6165 | LOP(OP_PRINT,XREF); |
79072805 LW |
6166 | |
6167 | case KEY_printf: | |
3280af22 | 6168 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6169 | LOP(OP_PRTF,XREF); |
79072805 | 6170 | |
c07a80fd | 6171 | case KEY_prototype: |
6172 | UNI(OP_PROTOTYPE); | |
6173 | ||
79072805 | 6174 | case KEY_push: |
a0d0e21e | 6175 | LOP(OP_PUSH,XTERM); |
79072805 LW |
6176 | |
6177 | case KEY_pop: | |
6f33ba73 | 6178 | UNIDOR(OP_POP); |
79072805 | 6179 | |
a0d0e21e | 6180 | case KEY_pos: |
6f33ba73 | 6181 | UNIDOR(OP_POS); |
4e553d73 | 6182 | |
79072805 | 6183 | case KEY_pack: |
a0d0e21e | 6184 | LOP(OP_PACK,XTERM); |
79072805 LW |
6185 | |
6186 | case KEY_package: | |
a0d0e21e | 6187 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
6188 | OPERATOR(PACKAGE); |
6189 | ||
6190 | case KEY_pipe: | |
a0d0e21e | 6191 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
6192 | |
6193 | case KEY_q: | |
5db06880 | 6194 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6195 | if (!s) |
d4c19fe8 | 6196 | missingterm(NULL); |
79072805 LW |
6197 | yylval.ival = OP_CONST; |
6198 | TERM(sublex_start()); | |
6199 | ||
a0d0e21e LW |
6200 | case KEY_quotemeta: |
6201 | UNI(OP_QUOTEMETA); | |
6202 | ||
8990e307 | 6203 | case KEY_qw: |
5db06880 | 6204 | s = scan_str(s,!!PL_madskills,FALSE); |
8990e307 | 6205 | if (!s) |
d4c19fe8 | 6206 | missingterm(NULL); |
3480a8d2 | 6207 | PL_expect = XOPERATOR; |
8127e0e3 GS |
6208 | force_next(')'); |
6209 | if (SvCUR(PL_lex_stuff)) { | |
5f66b61c | 6210 | OP *words = NULL; |
8127e0e3 | 6211 | int warned = 0; |
3280af22 | 6212 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 6213 | while (len) { |
d4c19fe8 AL |
6214 | for (; isSPACE(*d) && len; --len, ++d) |
6215 | /**/; | |
8127e0e3 | 6216 | if (len) { |
d4c19fe8 | 6217 | SV *sv; |
f54cb97a | 6218 | const char *b = d; |
e476b1b5 | 6219 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
6220 | for (; !isSPACE(*d) && len; --len, ++d) { |
6221 | if (*d == ',') { | |
9014280d | 6222 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6223 | "Possible attempt to separate words with commas"); |
6224 | ++warned; | |
6225 | } | |
6226 | else if (*d == '#') { | |
9014280d | 6227 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6228 | "Possible attempt to put comments in qw() list"); |
6229 | ++warned; | |
6230 | } | |
6231 | } | |
6232 | } | |
6233 | else { | |
d4c19fe8 AL |
6234 | for (; !isSPACE(*d) && len; --len, ++d) |
6235 | /**/; | |
8127e0e3 | 6236 | } |
7948272d NIS |
6237 | sv = newSVpvn(b, d-b); |
6238 | if (DO_UTF8(PL_lex_stuff)) | |
6239 | SvUTF8_on(sv); | |
8127e0e3 | 6240 | words = append_elem(OP_LIST, words, |
7948272d | 6241 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 6242 | } |
6243 | } | |
8127e0e3 | 6244 | if (words) { |
cd81e915 | 6245 | start_force(PL_curforce); |
9ded7720 | 6246 | NEXTVAL_NEXTTOKE.opval = words; |
8127e0e3 GS |
6247 | force_next(THING); |
6248 | } | |
55497cff | 6249 | } |
37fd879b | 6250 | if (PL_lex_stuff) { |
8127e0e3 | 6251 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 6252 | PL_lex_stuff = NULL; |
37fd879b | 6253 | } |
3280af22 | 6254 | PL_expect = XTERM; |
8127e0e3 | 6255 | TOKEN('('); |
8990e307 | 6256 | |
79072805 | 6257 | case KEY_qq: |
5db06880 | 6258 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6259 | if (!s) |
d4c19fe8 | 6260 | missingterm(NULL); |
a0d0e21e | 6261 | yylval.ival = OP_STRINGIFY; |
3280af22 | 6262 | if (SvIVX(PL_lex_stuff) == '\'') |
45977657 | 6263 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
6264 | TERM(sublex_start()); |
6265 | ||
8782bef2 GB |
6266 | case KEY_qr: |
6267 | s = scan_pat(s,OP_QR); | |
6268 | TERM(sublex_start()); | |
6269 | ||
79072805 | 6270 | case KEY_qx: |
5db06880 | 6271 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6272 | if (!s) |
d4c19fe8 | 6273 | missingterm(NULL); |
79072805 LW |
6274 | yylval.ival = OP_BACKTICK; |
6275 | set_csh(); | |
6276 | TERM(sublex_start()); | |
6277 | ||
6278 | case KEY_return: | |
6279 | OLDLOP(OP_RETURN); | |
6280 | ||
6281 | case KEY_require: | |
29595ff2 | 6282 | s = SKIPSPACE1(s); |
e759cc13 RGS |
6283 | if (isDIGIT(*s)) { |
6284 | s = force_version(s, FALSE); | |
a7cb1f99 | 6285 | } |
e759cc13 RGS |
6286 | else if (*s != 'v' || !isDIGIT(s[1]) |
6287 | || (s = force_version(s, TRUE), *s == 'v')) | |
6288 | { | |
a7cb1f99 GS |
6289 | *PL_tokenbuf = '\0'; |
6290 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 6291 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
a7cb1f99 GS |
6292 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), TRUE); |
6293 | else if (*s == '<') | |
6294 | yyerror("<> should be quotes"); | |
6295 | } | |
a72a1c8b RGS |
6296 | if (orig_keyword == KEY_require) { |
6297 | orig_keyword = 0; | |
6298 | yylval.ival = 1; | |
6299 | } | |
6300 | else | |
6301 | yylval.ival = 0; | |
6302 | PL_expect = XTERM; | |
6303 | PL_bufptr = s; | |
6304 | PL_last_uni = PL_oldbufptr; | |
6305 | PL_last_lop_op = OP_REQUIRE; | |
6306 | s = skipspace(s); | |
6307 | return REPORT( (int)REQUIRE ); | |
79072805 LW |
6308 | |
6309 | case KEY_reset: | |
6310 | UNI(OP_RESET); | |
6311 | ||
6312 | case KEY_redo: | |
a0d0e21e | 6313 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6314 | LOOPX(OP_REDO); |
6315 | ||
6316 | case KEY_rename: | |
a0d0e21e | 6317 | LOP(OP_RENAME,XTERM); |
79072805 LW |
6318 | |
6319 | case KEY_rand: | |
6320 | UNI(OP_RAND); | |
6321 | ||
6322 | case KEY_rmdir: | |
6323 | UNI(OP_RMDIR); | |
6324 | ||
6325 | case KEY_rindex: | |
a0d0e21e | 6326 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
6327 | |
6328 | case KEY_read: | |
a0d0e21e | 6329 | LOP(OP_READ,XTERM); |
79072805 LW |
6330 | |
6331 | case KEY_readdir: | |
6332 | UNI(OP_READDIR); | |
6333 | ||
93a17b20 LW |
6334 | case KEY_readline: |
6335 | set_csh(); | |
6f33ba73 | 6336 | UNIDOR(OP_READLINE); |
93a17b20 LW |
6337 | |
6338 | case KEY_readpipe: | |
6339 | set_csh(); | |
6340 | UNI(OP_BACKTICK); | |
6341 | ||
79072805 LW |
6342 | case KEY_rewinddir: |
6343 | UNI(OP_REWINDDIR); | |
6344 | ||
6345 | case KEY_recv: | |
a0d0e21e | 6346 | LOP(OP_RECV,XTERM); |
79072805 LW |
6347 | |
6348 | case KEY_reverse: | |
a0d0e21e | 6349 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
6350 | |
6351 | case KEY_readlink: | |
6f33ba73 | 6352 | UNIDOR(OP_READLINK); |
79072805 LW |
6353 | |
6354 | case KEY_ref: | |
6355 | UNI(OP_REF); | |
6356 | ||
6357 | case KEY_s: | |
6358 | s = scan_subst(s); | |
6359 | if (yylval.opval) | |
6360 | TERM(sublex_start()); | |
6361 | else | |
6362 | TOKEN(1); /* force error */ | |
6363 | ||
0d863452 RH |
6364 | case KEY_say: |
6365 | checkcomma(s,PL_tokenbuf,"filehandle"); | |
6366 | LOP(OP_SAY,XREF); | |
6367 | ||
a0d0e21e LW |
6368 | case KEY_chomp: |
6369 | UNI(OP_CHOMP); | |
4e553d73 | 6370 | |
79072805 LW |
6371 | case KEY_scalar: |
6372 | UNI(OP_SCALAR); | |
6373 | ||
6374 | case KEY_select: | |
a0d0e21e | 6375 | LOP(OP_SELECT,XTERM); |
79072805 LW |
6376 | |
6377 | case KEY_seek: | |
a0d0e21e | 6378 | LOP(OP_SEEK,XTERM); |
79072805 LW |
6379 | |
6380 | case KEY_semctl: | |
a0d0e21e | 6381 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
6382 | |
6383 | case KEY_semget: | |
a0d0e21e | 6384 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
6385 | |
6386 | case KEY_semop: | |
a0d0e21e | 6387 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
6388 | |
6389 | case KEY_send: | |
a0d0e21e | 6390 | LOP(OP_SEND,XTERM); |
79072805 LW |
6391 | |
6392 | case KEY_setpgrp: | |
a0d0e21e | 6393 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
6394 | |
6395 | case KEY_setpriority: | |
a0d0e21e | 6396 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
6397 | |
6398 | case KEY_sethostent: | |
ff68c719 | 6399 | UNI(OP_SHOSTENT); |
79072805 LW |
6400 | |
6401 | case KEY_setnetent: | |
ff68c719 | 6402 | UNI(OP_SNETENT); |
79072805 LW |
6403 | |
6404 | case KEY_setservent: | |
ff68c719 | 6405 | UNI(OP_SSERVENT); |
79072805 LW |
6406 | |
6407 | case KEY_setprotoent: | |
ff68c719 | 6408 | UNI(OP_SPROTOENT); |
79072805 LW |
6409 | |
6410 | case KEY_setpwent: | |
6411 | FUN0(OP_SPWENT); | |
6412 | ||
6413 | case KEY_setgrent: | |
6414 | FUN0(OP_SGRENT); | |
6415 | ||
6416 | case KEY_seekdir: | |
a0d0e21e | 6417 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
6418 | |
6419 | case KEY_setsockopt: | |
a0d0e21e | 6420 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
6421 | |
6422 | case KEY_shift: | |
6f33ba73 | 6423 | UNIDOR(OP_SHIFT); |
79072805 LW |
6424 | |
6425 | case KEY_shmctl: | |
a0d0e21e | 6426 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
6427 | |
6428 | case KEY_shmget: | |
a0d0e21e | 6429 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
6430 | |
6431 | case KEY_shmread: | |
a0d0e21e | 6432 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
6433 | |
6434 | case KEY_shmwrite: | |
a0d0e21e | 6435 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
6436 | |
6437 | case KEY_shutdown: | |
a0d0e21e | 6438 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
6439 | |
6440 | case KEY_sin: | |
6441 | UNI(OP_SIN); | |
6442 | ||
6443 | case KEY_sleep: | |
6444 | UNI(OP_SLEEP); | |
6445 | ||
6446 | case KEY_socket: | |
a0d0e21e | 6447 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
6448 | |
6449 | case KEY_socketpair: | |
a0d0e21e | 6450 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
6451 | |
6452 | case KEY_sort: | |
3280af22 | 6453 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
29595ff2 | 6454 | s = SKIPSPACE1(s); |
79072805 | 6455 | if (*s == ';' || *s == ')') /* probably a close */ |
cea2e8a9 | 6456 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 6457 | PL_expect = XTERM; |
15f0808c | 6458 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 6459 | LOP(OP_SORT,XREF); |
79072805 LW |
6460 | |
6461 | case KEY_split: | |
a0d0e21e | 6462 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
6463 | |
6464 | case KEY_sprintf: | |
a0d0e21e | 6465 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
6466 | |
6467 | case KEY_splice: | |
a0d0e21e | 6468 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
6469 | |
6470 | case KEY_sqrt: | |
6471 | UNI(OP_SQRT); | |
6472 | ||
6473 | case KEY_srand: | |
6474 | UNI(OP_SRAND); | |
6475 | ||
6476 | case KEY_stat: | |
6477 | UNI(OP_STAT); | |
6478 | ||
6479 | case KEY_study: | |
79072805 LW |
6480 | UNI(OP_STUDY); |
6481 | ||
6482 | case KEY_substr: | |
a0d0e21e | 6483 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
6484 | |
6485 | case KEY_format: | |
6486 | case KEY_sub: | |
93a17b20 | 6487 | really_sub: |
09bef843 | 6488 | { |
3280af22 | 6489 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 6490 | SSize_t tboffset = 0; |
09bef843 | 6491 | expectation attrful; |
28cc6278 | 6492 | bool have_name, have_proto; |
f54cb97a | 6493 | const int key = tmp; |
09bef843 | 6494 | |
5db06880 NC |
6495 | #ifdef PERL_MAD |
6496 | SV *tmpwhite = 0; | |
6497 | ||
cd81e915 | 6498 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
5db06880 | 6499 | SV *subtoken = newSVpvn(tstart, s - tstart); |
cd81e915 | 6500 | PL_thistoken = 0; |
5db06880 NC |
6501 | |
6502 | d = s; | |
6503 | s = SKIPSPACE2(s,tmpwhite); | |
6504 | #else | |
09bef843 | 6505 | s = skipspace(s); |
5db06880 | 6506 | #endif |
09bef843 | 6507 | |
7e2040f0 | 6508 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
6509 | (*s == ':' && s[1] == ':')) |
6510 | { | |
5db06880 NC |
6511 | #ifdef PERL_MAD |
6512 | SV *nametoke; | |
6513 | #endif | |
6514 | ||
09bef843 SB |
6515 | PL_expect = XBLOCK; |
6516 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
6517 | /* remember buffer pos'n for later force_word */ |
6518 | tboffset = s - PL_oldbufptr; | |
09bef843 | 6519 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5db06880 NC |
6520 | #ifdef PERL_MAD |
6521 | if (PL_madskills) | |
6522 | nametoke = newSVpvn(s, d - s); | |
6523 | #endif | |
09bef843 SB |
6524 | if (strchr(tmpbuf, ':')) |
6525 | sv_setpv(PL_subname, tmpbuf); | |
6526 | else { | |
6527 | sv_setsv(PL_subname,PL_curstname); | |
396482e1 | 6528 | sv_catpvs(PL_subname,"::"); |
09bef843 SB |
6529 | sv_catpvn(PL_subname,tmpbuf,len); |
6530 | } | |
09bef843 | 6531 | have_name = TRUE; |
5db06880 NC |
6532 | |
6533 | #ifdef PERL_MAD | |
6534 | ||
6535 | start_force(0); | |
6536 | CURMAD('X', nametoke); | |
6537 | CURMAD('_', tmpwhite); | |
6538 | (void) force_word(PL_oldbufptr + tboffset, WORD, | |
6539 | FALSE, TRUE, TRUE); | |
6540 | ||
6541 | s = SKIPSPACE2(d,tmpwhite); | |
6542 | #else | |
6543 | s = skipspace(d); | |
6544 | #endif | |
09bef843 | 6545 | } |
463ee0b2 | 6546 | else { |
09bef843 SB |
6547 | if (key == KEY_my) |
6548 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
6549 | PL_expect = XTERMBLOCK; | |
6550 | attrful = XATTRTERM; | |
c69006e4 | 6551 | sv_setpvn(PL_subname,"?",1); |
09bef843 | 6552 | have_name = FALSE; |
463ee0b2 | 6553 | } |
4633a7c4 | 6554 | |
09bef843 SB |
6555 | if (key == KEY_format) { |
6556 | if (*s == '=') | |
6557 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5db06880 | 6558 | #ifdef PERL_MAD |
cd81e915 | 6559 | PL_thistoken = subtoken; |
5db06880 NC |
6560 | s = d; |
6561 | #else | |
09bef843 | 6562 | if (have_name) |
b1b65b59 JH |
6563 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6564 | FALSE, TRUE, TRUE); | |
5db06880 | 6565 | #endif |
09bef843 SB |
6566 | OPERATOR(FORMAT); |
6567 | } | |
79072805 | 6568 | |
09bef843 SB |
6569 | /* Look for a prototype */ |
6570 | if (*s == '(') { | |
d9f2850e RGS |
6571 | char *p; |
6572 | bool bad_proto = FALSE; | |
6573 | const bool warnsyntax = ckWARN(WARN_SYNTAX); | |
09bef843 | 6574 | |
5db06880 | 6575 | s = scan_str(s,!!PL_madskills,FALSE); |
37fd879b | 6576 | if (!s) |
09bef843 | 6577 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 6578 | /* strip spaces and check for bad characters */ |
09bef843 SB |
6579 | d = SvPVX(PL_lex_stuff); |
6580 | tmp = 0; | |
d9f2850e RGS |
6581 | for (p = d; *p; ++p) { |
6582 | if (!isSPACE(*p)) { | |
6583 | d[tmp++] = *p; | |
b13fd70a | 6584 | if (warnsyntax && !strchr("$@%*;[]&\\_", *p)) |
d9f2850e | 6585 | bad_proto = TRUE; |
d37a9538 | 6586 | } |
09bef843 | 6587 | } |
d9f2850e RGS |
6588 | d[tmp] = '\0'; |
6589 | if (bad_proto) | |
6590 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
6591 | "Illegal character in prototype for %"SVf" : %s", | |
6592 | (void*)PL_subname, d); | |
b162af07 | 6593 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 6594 | have_proto = TRUE; |
68dc0745 | 6595 | |
5db06880 NC |
6596 | #ifdef PERL_MAD |
6597 | start_force(0); | |
cd81e915 | 6598 | CURMAD('q', PL_thisopen); |
5db06880 | 6599 | CURMAD('_', tmpwhite); |
cd81e915 NC |
6600 | CURMAD('=', PL_thisstuff); |
6601 | CURMAD('Q', PL_thisclose); | |
5db06880 NC |
6602 | NEXTVAL_NEXTTOKE.opval = |
6603 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
6604 | PL_lex_stuff = Nullsv; | |
6605 | force_next(THING); | |
6606 | ||
6607 | s = SKIPSPACE2(s,tmpwhite); | |
6608 | #else | |
09bef843 | 6609 | s = skipspace(s); |
5db06880 | 6610 | #endif |
4633a7c4 | 6611 | } |
09bef843 SB |
6612 | else |
6613 | have_proto = FALSE; | |
6614 | ||
6615 | if (*s == ':' && s[1] != ':') | |
6616 | PL_expect = attrful; | |
8e742a20 MHM |
6617 | else if (*s != '{' && key == KEY_sub) { |
6618 | if (!have_name) | |
6619 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
6620 | else if (*s != ';') | |
95b63a38 | 6621 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, (void*)PL_subname); |
8e742a20 | 6622 | } |
09bef843 | 6623 | |
5db06880 NC |
6624 | #ifdef PERL_MAD |
6625 | start_force(0); | |
6626 | if (tmpwhite) { | |
6627 | if (PL_madskills) | |
6b29d1f5 | 6628 | curmad('^', newSVpvs("")); |
5db06880 NC |
6629 | CURMAD('_', tmpwhite); |
6630 | } | |
6631 | force_next(0); | |
6632 | ||
cd81e915 | 6633 | PL_thistoken = subtoken; |
5db06880 | 6634 | #else |
09bef843 | 6635 | if (have_proto) { |
9ded7720 | 6636 | NEXTVAL_NEXTTOKE.opval = |
b1b65b59 | 6637 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); |
a0714e2c | 6638 | PL_lex_stuff = NULL; |
09bef843 | 6639 | force_next(THING); |
68dc0745 | 6640 | } |
5db06880 | 6641 | #endif |
09bef843 | 6642 | if (!have_name) { |
c99da370 | 6643 | sv_setpv(PL_subname, |
10edeb5d JH |
6644 | (const char *) |
6645 | (PL_curstash ? "__ANON__" : "__ANON__::__ANON__")); | |
09bef843 | 6646 | TOKEN(ANONSUB); |
4633a7c4 | 6647 | } |
5db06880 | 6648 | #ifndef PERL_MAD |
b1b65b59 JH |
6649 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6650 | FALSE, TRUE, TRUE); | |
5db06880 | 6651 | #endif |
09bef843 SB |
6652 | if (key == KEY_my) |
6653 | TOKEN(MYSUB); | |
6654 | TOKEN(SUB); | |
4633a7c4 | 6655 | } |
79072805 LW |
6656 | |
6657 | case KEY_system: | |
6658 | set_csh(); | |
a0d0e21e | 6659 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
6660 | |
6661 | case KEY_symlink: | |
a0d0e21e | 6662 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
6663 | |
6664 | case KEY_syscall: | |
a0d0e21e | 6665 | LOP(OP_SYSCALL,XTERM); |
79072805 | 6666 | |
c07a80fd | 6667 | case KEY_sysopen: |
6668 | LOP(OP_SYSOPEN,XTERM); | |
6669 | ||
137443ea | 6670 | case KEY_sysseek: |
6671 | LOP(OP_SYSSEEK,XTERM); | |
6672 | ||
79072805 | 6673 | case KEY_sysread: |
a0d0e21e | 6674 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
6675 | |
6676 | case KEY_syswrite: | |
a0d0e21e | 6677 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
6678 | |
6679 | case KEY_tr: | |
6680 | s = scan_trans(s); | |
6681 | TERM(sublex_start()); | |
6682 | ||
6683 | case KEY_tell: | |
6684 | UNI(OP_TELL); | |
6685 | ||
6686 | case KEY_telldir: | |
6687 | UNI(OP_TELLDIR); | |
6688 | ||
463ee0b2 | 6689 | case KEY_tie: |
a0d0e21e | 6690 | LOP(OP_TIE,XTERM); |
463ee0b2 | 6691 | |
c07a80fd | 6692 | case KEY_tied: |
6693 | UNI(OP_TIED); | |
6694 | ||
79072805 LW |
6695 | case KEY_time: |
6696 | FUN0(OP_TIME); | |
6697 | ||
6698 | case KEY_times: | |
6699 | FUN0(OP_TMS); | |
6700 | ||
6701 | case KEY_truncate: | |
a0d0e21e | 6702 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
6703 | |
6704 | case KEY_uc: | |
6705 | UNI(OP_UC); | |
6706 | ||
6707 | case KEY_ucfirst: | |
6708 | UNI(OP_UCFIRST); | |
6709 | ||
463ee0b2 LW |
6710 | case KEY_untie: |
6711 | UNI(OP_UNTIE); | |
6712 | ||
79072805 | 6713 | case KEY_until: |
57843af0 | 6714 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6715 | OPERATOR(UNTIL); |
6716 | ||
6717 | case KEY_unless: | |
57843af0 | 6718 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6719 | OPERATOR(UNLESS); |
6720 | ||
6721 | case KEY_unlink: | |
a0d0e21e | 6722 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
6723 | |
6724 | case KEY_undef: | |
6f33ba73 | 6725 | UNIDOR(OP_UNDEF); |
79072805 LW |
6726 | |
6727 | case KEY_unpack: | |
a0d0e21e | 6728 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
6729 | |
6730 | case KEY_utime: | |
a0d0e21e | 6731 | LOP(OP_UTIME,XTERM); |
79072805 LW |
6732 | |
6733 | case KEY_umask: | |
6f33ba73 | 6734 | UNIDOR(OP_UMASK); |
79072805 LW |
6735 | |
6736 | case KEY_unshift: | |
a0d0e21e LW |
6737 | LOP(OP_UNSHIFT,XTERM); |
6738 | ||
6739 | case KEY_use: | |
468aa647 | 6740 | s = tokenize_use(1, s); |
a0d0e21e | 6741 | OPERATOR(USE); |
79072805 LW |
6742 | |
6743 | case KEY_values: | |
6744 | UNI(OP_VALUES); | |
6745 | ||
6746 | case KEY_vec: | |
a0d0e21e | 6747 | LOP(OP_VEC,XTERM); |
79072805 | 6748 | |
0d863452 RH |
6749 | case KEY_when: |
6750 | yylval.ival = CopLINE(PL_curcop); | |
6751 | OPERATOR(WHEN); | |
6752 | ||
79072805 | 6753 | case KEY_while: |
57843af0 | 6754 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6755 | OPERATOR(WHILE); |
6756 | ||
6757 | case KEY_warn: | |
3280af22 | 6758 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 6759 | LOP(OP_WARN,XTERM); |
79072805 LW |
6760 | |
6761 | case KEY_wait: | |
6762 | FUN0(OP_WAIT); | |
6763 | ||
6764 | case KEY_waitpid: | |
a0d0e21e | 6765 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
6766 | |
6767 | case KEY_wantarray: | |
6768 | FUN0(OP_WANTARRAY); | |
6769 | ||
6770 | case KEY_write: | |
9d116dd7 JH |
6771 | #ifdef EBCDIC |
6772 | { | |
df3728a2 JH |
6773 | char ctl_l[2]; |
6774 | ctl_l[0] = toCTRL('L'); | |
6775 | ctl_l[1] = '\0'; | |
fafc274c | 6776 | gv_fetchpvn_flags(ctl_l, 1, GV_ADD|GV_NOTQUAL, SVt_PV); |
9d116dd7 JH |
6777 | } |
6778 | #else | |
fafc274c NC |
6779 | /* Make sure $^L is defined */ |
6780 | gv_fetchpvs("\f", GV_ADD|GV_NOTQUAL, SVt_PV); | |
9d116dd7 | 6781 | #endif |
79072805 LW |
6782 | UNI(OP_ENTERWRITE); |
6783 | ||
6784 | case KEY_x: | |
3280af22 | 6785 | if (PL_expect == XOPERATOR) |
79072805 LW |
6786 | Mop(OP_REPEAT); |
6787 | check_uni(); | |
6788 | goto just_a_word; | |
6789 | ||
a0d0e21e LW |
6790 | case KEY_xor: |
6791 | yylval.ival = OP_XOR; | |
6792 | OPERATOR(OROP); | |
6793 | ||
79072805 LW |
6794 | case KEY_y: |
6795 | s = scan_trans(s); | |
6796 | TERM(sublex_start()); | |
6797 | } | |
49dc05e3 | 6798 | }} |
79072805 | 6799 | } |
bf4acbe4 GS |
6800 | #ifdef __SC__ |
6801 | #pragma segment Main | |
6802 | #endif | |
79072805 | 6803 | |
e930465f JH |
6804 | static int |
6805 | S_pending_ident(pTHX) | |
8eceec63 | 6806 | { |
97aff369 | 6807 | dVAR; |
8eceec63 | 6808 | register char *d; |
bbd11bfc | 6809 | PADOFFSET tmp = 0; |
8eceec63 SC |
6810 | /* pit holds the identifier we read and pending_ident is reset */ |
6811 | char pit = PL_pending_ident; | |
6812 | PL_pending_ident = 0; | |
6813 | ||
cd81e915 | 6814 | /* PL_realtokenstart = realtokenend = PL_bufptr - SvPVX(PL_linestr); */ |
8eceec63 | 6815 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 6816 | "### Pending identifier '%s'\n", PL_tokenbuf); }); |
8eceec63 SC |
6817 | |
6818 | /* if we're in a my(), we can't allow dynamics here. | |
6819 | $foo'bar has already been turned into $foo::bar, so | |
6820 | just check for colons. | |
6821 | ||
6822 | if it's a legal name, the OP is a PADANY. | |
6823 | */ | |
6824 | if (PL_in_my) { | |
6825 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
6826 | if (strchr(PL_tokenbuf,':')) | |
6827 | yyerror(Perl_form(aTHX_ "No package name allowed for " | |
6828 | "variable %s in \"our\"", | |
6829 | PL_tokenbuf)); | |
dd2155a4 | 6830 | tmp = allocmy(PL_tokenbuf); |
8eceec63 SC |
6831 | } |
6832 | else { | |
6833 | if (strchr(PL_tokenbuf,':')) | |
952306ac RGS |
6834 | yyerror(Perl_form(aTHX_ PL_no_myglob, |
6835 | PL_in_my == KEY_my ? "my" : "state", PL_tokenbuf)); | |
8eceec63 SC |
6836 | |
6837 | yylval.opval = newOP(OP_PADANY, 0); | |
dd2155a4 | 6838 | yylval.opval->op_targ = allocmy(PL_tokenbuf); |
8eceec63 SC |
6839 | return PRIVATEREF; |
6840 | } | |
6841 | } | |
6842 | ||
6843 | /* | |
6844 | build the ops for accesses to a my() variable. | |
6845 | ||
6846 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
6847 | then used in a comparison. This catches most, but not | |
6848 | all cases. For instance, it catches | |
6849 | sort { my($a); $a <=> $b } | |
6850 | but not | |
6851 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
6852 | (although why you'd do that is anyone's guess). | |
6853 | */ | |
6854 | ||
6855 | if (!strchr(PL_tokenbuf,':')) { | |
8716503d DM |
6856 | if (!PL_in_my) |
6857 | tmp = pad_findmy(PL_tokenbuf); | |
6858 | if (tmp != NOT_IN_PAD) { | |
8eceec63 | 6859 | /* might be an "our" variable" */ |
00b1698f | 6860 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
8eceec63 | 6861 | /* build ops for a bareword */ |
b64e5050 AL |
6862 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
6863 | HEK * const stashname = HvNAME_HEK(stash); | |
6864 | SV * const sym = newSVhek(stashname); | |
396482e1 | 6865 | sv_catpvs(sym, "::"); |
8eceec63 SC |
6866 | sv_catpv(sym, PL_tokenbuf+1); |
6867 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); | |
6868 | yylval.opval->op_private = OPpCONST_ENTERED; | |
7a5fd60d | 6869 | gv_fetchsv(sym, |
8eceec63 SC |
6870 | (PL_in_eval |
6871 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 6872 | : GV_ADDMULTI |
8eceec63 SC |
6873 | ), |
6874 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
6875 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
6876 | : SVt_PVHV)); | |
6877 | return WORD; | |
6878 | } | |
6879 | ||
6880 | /* if it's a sort block and they're naming $a or $b */ | |
6881 | if (PL_last_lop_op == OP_SORT && | |
6882 | PL_tokenbuf[0] == '$' && | |
6883 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
6884 | && !PL_tokenbuf[2]) | |
6885 | { | |
6886 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
6887 | d < PL_bufend && *d != '\n'; | |
6888 | d++) | |
6889 | { | |
6890 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
6891 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
6892 | PL_tokenbuf); | |
6893 | } | |
6894 | } | |
6895 | } | |
6896 | ||
6897 | yylval.opval = newOP(OP_PADANY, 0); | |
6898 | yylval.opval->op_targ = tmp; | |
6899 | return PRIVATEREF; | |
6900 | } | |
6901 | } | |
6902 | ||
6903 | /* | |
6904 | Whine if they've said @foo in a doublequoted string, | |
6905 | and @foo isn't a variable we can find in the symbol | |
6906 | table. | |
6907 | */ | |
6908 | if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
f776e3cd | 6909 | GV *gv = gv_fetchpv(PL_tokenbuf+1, 0, SVt_PVAV); |
8eceec63 SC |
6910 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
6911 | && ckWARN(WARN_AMBIGUOUS)) | |
6912 | { | |
6913 | /* Downgraded from fatal to warning 20000522 mjd */ | |
9014280d | 6914 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
8eceec63 SC |
6915 | "Possible unintended interpolation of %s in string", |
6916 | PL_tokenbuf); | |
6917 | } | |
6918 | } | |
6919 | ||
6920 | /* build ops for a bareword */ | |
6921 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf+1, 0)); | |
6922 | yylval.opval->op_private = OPpCONST_ENTERED; | |
adc51b97 RGS |
6923 | gv_fetchpv( |
6924 | PL_tokenbuf+1, | |
d6069db2 RGS |
6925 | /* If the identifier refers to a stash, don't autovivify it. |
6926 | * Change 24660 had the side effect of causing symbol table | |
6927 | * hashes to always be defined, even if they were freshly | |
6928 | * created and the only reference in the entire program was | |
6929 | * the single statement with the defined %foo::bar:: test. | |
6930 | * It appears that all code in the wild doing this actually | |
6931 | * wants to know whether sub-packages have been loaded, so | |
6932 | * by avoiding auto-vivifying symbol tables, we ensure that | |
6933 | * defined %foo::bar:: continues to be false, and the existing | |
6934 | * tests still give the expected answers, even though what | |
6935 | * they're actually testing has now changed subtly. | |
6936 | */ | |
6937 | (*PL_tokenbuf == '%' && *(d = PL_tokenbuf + strlen(PL_tokenbuf) - 1) == ':' && d[-1] == ':' | |
6938 | ? 0 | |
6939 | : PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD), | |
adc51b97 RGS |
6940 | ((PL_tokenbuf[0] == '$') ? SVt_PV |
6941 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
6942 | : SVt_PVHV)); | |
8eceec63 SC |
6943 | return WORD; |
6944 | } | |
6945 | ||
4c3bbe0f MHM |
6946 | /* |
6947 | * The following code was generated by perl_keyword.pl. | |
6948 | */ | |
e2e1dd5a | 6949 | |
79072805 | 6950 | I32 |
5458a98a | 6951 | Perl_keyword (pTHX_ const char *name, I32 len, bool all_keywords) |
4c3bbe0f | 6952 | { |
952306ac | 6953 | dVAR; |
4c3bbe0f MHM |
6954 | switch (len) |
6955 | { | |
6956 | case 1: /* 5 tokens of length 1 */ | |
6957 | switch (name[0]) | |
e2e1dd5a | 6958 | { |
4c3bbe0f MHM |
6959 | case 'm': |
6960 | { /* m */ | |
6961 | return KEY_m; | |
6962 | } | |
6963 | ||
4c3bbe0f MHM |
6964 | case 'q': |
6965 | { /* q */ | |
6966 | return KEY_q; | |
6967 | } | |
6968 | ||
4c3bbe0f MHM |
6969 | case 's': |
6970 | { /* s */ | |
6971 | return KEY_s; | |
6972 | } | |
6973 | ||
4c3bbe0f MHM |
6974 | case 'x': |
6975 | { /* x */ | |
6976 | return -KEY_x; | |
6977 | } | |
6978 | ||
4c3bbe0f MHM |
6979 | case 'y': |
6980 | { /* y */ | |
6981 | return KEY_y; | |
6982 | } | |
6983 | ||
4c3bbe0f MHM |
6984 | default: |
6985 | goto unknown; | |
e2e1dd5a | 6986 | } |
4c3bbe0f MHM |
6987 | |
6988 | case 2: /* 18 tokens of length 2 */ | |
6989 | switch (name[0]) | |
e2e1dd5a | 6990 | { |
4c3bbe0f MHM |
6991 | case 'd': |
6992 | if (name[1] == 'o') | |
6993 | { /* do */ | |
6994 | return KEY_do; | |
6995 | } | |
6996 | ||
6997 | goto unknown; | |
6998 | ||
6999 | case 'e': | |
7000 | if (name[1] == 'q') | |
7001 | { /* eq */ | |
7002 | return -KEY_eq; | |
7003 | } | |
7004 | ||
7005 | goto unknown; | |
7006 | ||
7007 | case 'g': | |
7008 | switch (name[1]) | |
7009 | { | |
7010 | case 'e': | |
7011 | { /* ge */ | |
7012 | return -KEY_ge; | |
7013 | } | |
7014 | ||
4c3bbe0f MHM |
7015 | case 't': |
7016 | { /* gt */ | |
7017 | return -KEY_gt; | |
7018 | } | |
7019 | ||
4c3bbe0f MHM |
7020 | default: |
7021 | goto unknown; | |
7022 | } | |
7023 | ||
7024 | case 'i': | |
7025 | if (name[1] == 'f') | |
7026 | { /* if */ | |
7027 | return KEY_if; | |
7028 | } | |
7029 | ||
7030 | goto unknown; | |
7031 | ||
7032 | case 'l': | |
7033 | switch (name[1]) | |
7034 | { | |
7035 | case 'c': | |
7036 | { /* lc */ | |
7037 | return -KEY_lc; | |
7038 | } | |
7039 | ||
4c3bbe0f MHM |
7040 | case 'e': |
7041 | { /* le */ | |
7042 | return -KEY_le; | |
7043 | } | |
7044 | ||
4c3bbe0f MHM |
7045 | case 't': |
7046 | { /* lt */ | |
7047 | return -KEY_lt; | |
7048 | } | |
7049 | ||
4c3bbe0f MHM |
7050 | default: |
7051 | goto unknown; | |
7052 | } | |
7053 | ||
7054 | case 'm': | |
7055 | if (name[1] == 'y') | |
7056 | { /* my */ | |
7057 | return KEY_my; | |
7058 | } | |
7059 | ||
7060 | goto unknown; | |
7061 | ||
7062 | case 'n': | |
7063 | switch (name[1]) | |
7064 | { | |
7065 | case 'e': | |
7066 | { /* ne */ | |
7067 | return -KEY_ne; | |
7068 | } | |
7069 | ||
4c3bbe0f MHM |
7070 | case 'o': |
7071 | { /* no */ | |
7072 | return KEY_no; | |
7073 | } | |
7074 | ||
4c3bbe0f MHM |
7075 | default: |
7076 | goto unknown; | |
7077 | } | |
7078 | ||
7079 | case 'o': | |
7080 | if (name[1] == 'r') | |
7081 | { /* or */ | |
7082 | return -KEY_or; | |
7083 | } | |
7084 | ||
7085 | goto unknown; | |
7086 | ||
7087 | case 'q': | |
7088 | switch (name[1]) | |
7089 | { | |
7090 | case 'q': | |
7091 | { /* qq */ | |
7092 | return KEY_qq; | |
7093 | } | |
7094 | ||
4c3bbe0f MHM |
7095 | case 'r': |
7096 | { /* qr */ | |
7097 | return KEY_qr; | |
7098 | } | |
7099 | ||
4c3bbe0f MHM |
7100 | case 'w': |
7101 | { /* qw */ | |
7102 | return KEY_qw; | |
7103 | } | |
7104 | ||
4c3bbe0f MHM |
7105 | case 'x': |
7106 | { /* qx */ | |
7107 | return KEY_qx; | |
7108 | } | |
7109 | ||
4c3bbe0f MHM |
7110 | default: |
7111 | goto unknown; | |
7112 | } | |
7113 | ||
7114 | case 't': | |
7115 | if (name[1] == 'r') | |
7116 | { /* tr */ | |
7117 | return KEY_tr; | |
7118 | } | |
7119 | ||
7120 | goto unknown; | |
7121 | ||
7122 | case 'u': | |
7123 | if (name[1] == 'c') | |
7124 | { /* uc */ | |
7125 | return -KEY_uc; | |
7126 | } | |
7127 | ||
7128 | goto unknown; | |
7129 | ||
7130 | default: | |
7131 | goto unknown; | |
e2e1dd5a | 7132 | } |
4c3bbe0f | 7133 | |
0d863452 | 7134 | case 3: /* 29 tokens of length 3 */ |
4c3bbe0f | 7135 | switch (name[0]) |
e2e1dd5a | 7136 | { |
4c3bbe0f MHM |
7137 | case 'E': |
7138 | if (name[1] == 'N' && | |
7139 | name[2] == 'D') | |
7140 | { /* END */ | |
7141 | return KEY_END; | |
7142 | } | |
7143 | ||
7144 | goto unknown; | |
7145 | ||
7146 | case 'a': | |
7147 | switch (name[1]) | |
7148 | { | |
7149 | case 'b': | |
7150 | if (name[2] == 's') | |
7151 | { /* abs */ | |
7152 | return -KEY_abs; | |
7153 | } | |
7154 | ||
7155 | goto unknown; | |
7156 | ||
7157 | case 'n': | |
7158 | if (name[2] == 'd') | |
7159 | { /* and */ | |
7160 | return -KEY_and; | |
7161 | } | |
7162 | ||
7163 | goto unknown; | |
7164 | ||
7165 | default: | |
7166 | goto unknown; | |
7167 | } | |
7168 | ||
7169 | case 'c': | |
7170 | switch (name[1]) | |
7171 | { | |
7172 | case 'h': | |
7173 | if (name[2] == 'r') | |
7174 | { /* chr */ | |
7175 | return -KEY_chr; | |
7176 | } | |
7177 | ||
7178 | goto unknown; | |
7179 | ||
7180 | case 'm': | |
7181 | if (name[2] == 'p') | |
7182 | { /* cmp */ | |
7183 | return -KEY_cmp; | |
7184 | } | |
7185 | ||
7186 | goto unknown; | |
7187 | ||
7188 | case 'o': | |
7189 | if (name[2] == 's') | |
7190 | { /* cos */ | |
7191 | return -KEY_cos; | |
7192 | } | |
7193 | ||
7194 | goto unknown; | |
7195 | ||
7196 | default: | |
7197 | goto unknown; | |
7198 | } | |
7199 | ||
7200 | case 'd': | |
7201 | if (name[1] == 'i' && | |
7202 | name[2] == 'e') | |
7203 | { /* die */ | |
7204 | return -KEY_die; | |
7205 | } | |
7206 | ||
7207 | goto unknown; | |
7208 | ||
7209 | case 'e': | |
7210 | switch (name[1]) | |
7211 | { | |
7212 | case 'o': | |
7213 | if (name[2] == 'f') | |
7214 | { /* eof */ | |
7215 | return -KEY_eof; | |
7216 | } | |
7217 | ||
7218 | goto unknown; | |
7219 | ||
7220 | case 'r': | |
7221 | if (name[2] == 'r') | |
7222 | { /* err */ | |
5458a98a | 7223 | return (all_keywords || FEATURE_IS_ENABLED("err") ? -KEY_err : 0); |
4c3bbe0f MHM |
7224 | } |
7225 | ||
7226 | goto unknown; | |
7227 | ||
7228 | case 'x': | |
7229 | if (name[2] == 'p') | |
7230 | { /* exp */ | |
7231 | return -KEY_exp; | |
7232 | } | |
7233 | ||
7234 | goto unknown; | |
7235 | ||
7236 | default: | |
7237 | goto unknown; | |
7238 | } | |
7239 | ||
7240 | case 'f': | |
7241 | if (name[1] == 'o' && | |
7242 | name[2] == 'r') | |
7243 | { /* for */ | |
7244 | return KEY_for; | |
7245 | } | |
7246 | ||
7247 | goto unknown; | |
7248 | ||
7249 | case 'h': | |
7250 | if (name[1] == 'e' && | |
7251 | name[2] == 'x') | |
7252 | { /* hex */ | |
7253 | return -KEY_hex; | |
7254 | } | |
7255 | ||
7256 | goto unknown; | |
7257 | ||
7258 | case 'i': | |
7259 | if (name[1] == 'n' && | |
7260 | name[2] == 't') | |
7261 | { /* int */ | |
7262 | return -KEY_int; | |
7263 | } | |
7264 | ||
7265 | goto unknown; | |
7266 | ||
7267 | case 'l': | |
7268 | if (name[1] == 'o' && | |
7269 | name[2] == 'g') | |
7270 | { /* log */ | |
7271 | return -KEY_log; | |
7272 | } | |
7273 | ||
7274 | goto unknown; | |
7275 | ||
7276 | case 'm': | |
7277 | if (name[1] == 'a' && | |
7278 | name[2] == 'p') | |
7279 | { /* map */ | |
7280 | return KEY_map; | |
7281 | } | |
7282 | ||
7283 | goto unknown; | |
7284 | ||
7285 | case 'n': | |
7286 | if (name[1] == 'o' && | |
7287 | name[2] == 't') | |
7288 | { /* not */ | |
7289 | return -KEY_not; | |
7290 | } | |
7291 | ||
7292 | goto unknown; | |
7293 | ||
7294 | case 'o': | |
7295 | switch (name[1]) | |
7296 | { | |
7297 | case 'c': | |
7298 | if (name[2] == 't') | |
7299 | { /* oct */ | |
7300 | return -KEY_oct; | |
7301 | } | |
7302 | ||
7303 | goto unknown; | |
7304 | ||
7305 | case 'r': | |
7306 | if (name[2] == 'd') | |
7307 | { /* ord */ | |
7308 | return -KEY_ord; | |
7309 | } | |
7310 | ||
7311 | goto unknown; | |
7312 | ||
7313 | case 'u': | |
7314 | if (name[2] == 'r') | |
7315 | { /* our */ | |
7316 | return KEY_our; | |
7317 | } | |
7318 | ||
7319 | goto unknown; | |
7320 | ||
7321 | default: | |
7322 | goto unknown; | |
7323 | } | |
7324 | ||
7325 | case 'p': | |
7326 | if (name[1] == 'o') | |
7327 | { | |
7328 | switch (name[2]) | |
7329 | { | |
7330 | case 'p': | |
7331 | { /* pop */ | |
7332 | return -KEY_pop; | |
7333 | } | |
7334 | ||
4c3bbe0f MHM |
7335 | case 's': |
7336 | { /* pos */ | |
7337 | return KEY_pos; | |
7338 | } | |
7339 | ||
4c3bbe0f MHM |
7340 | default: |
7341 | goto unknown; | |
7342 | } | |
7343 | } | |
7344 | ||
7345 | goto unknown; | |
7346 | ||
7347 | case 'r': | |
7348 | if (name[1] == 'e' && | |
7349 | name[2] == 'f') | |
7350 | { /* ref */ | |
7351 | return -KEY_ref; | |
7352 | } | |
7353 | ||
7354 | goto unknown; | |
7355 | ||
7356 | case 's': | |
7357 | switch (name[1]) | |
7358 | { | |
0d863452 RH |
7359 | case 'a': |
7360 | if (name[2] == 'y') | |
7361 | { /* say */ | |
5458a98a | 7362 | return (all_keywords || FEATURE_IS_ENABLED("say") ? -KEY_say : 0); |
0d863452 RH |
7363 | } |
7364 | ||
7365 | goto unknown; | |
7366 | ||
4c3bbe0f MHM |
7367 | case 'i': |
7368 | if (name[2] == 'n') | |
7369 | { /* sin */ | |
7370 | return -KEY_sin; | |
7371 | } | |
7372 | ||
7373 | goto unknown; | |
7374 | ||
7375 | case 'u': | |
7376 | if (name[2] == 'b') | |
7377 | { /* sub */ | |
7378 | return KEY_sub; | |
7379 | } | |
7380 | ||
7381 | goto unknown; | |
7382 | ||
7383 | default: | |
7384 | goto unknown; | |
7385 | } | |
7386 | ||
7387 | case 't': | |
7388 | if (name[1] == 'i' && | |
7389 | name[2] == 'e') | |
7390 | { /* tie */ | |
7391 | return KEY_tie; | |
7392 | } | |
7393 | ||
7394 | goto unknown; | |
7395 | ||
7396 | case 'u': | |
7397 | if (name[1] == 's' && | |
7398 | name[2] == 'e') | |
7399 | { /* use */ | |
7400 | return KEY_use; | |
7401 | } | |
7402 | ||
7403 | goto unknown; | |
7404 | ||
7405 | case 'v': | |
7406 | if (name[1] == 'e' && | |
7407 | name[2] == 'c') | |
7408 | { /* vec */ | |
7409 | return -KEY_vec; | |
7410 | } | |
7411 | ||
7412 | goto unknown; | |
7413 | ||
7414 | case 'x': | |
7415 | if (name[1] == 'o' && | |
7416 | name[2] == 'r') | |
7417 | { /* xor */ | |
7418 | return -KEY_xor; | |
7419 | } | |
7420 | ||
7421 | goto unknown; | |
7422 | ||
7423 | default: | |
7424 | goto unknown; | |
e2e1dd5a | 7425 | } |
4c3bbe0f | 7426 | |
0d863452 | 7427 | case 4: /* 41 tokens of length 4 */ |
4c3bbe0f | 7428 | switch (name[0]) |
e2e1dd5a | 7429 | { |
4c3bbe0f MHM |
7430 | case 'C': |
7431 | if (name[1] == 'O' && | |
7432 | name[2] == 'R' && | |
7433 | name[3] == 'E') | |
7434 | { /* CORE */ | |
7435 | return -KEY_CORE; | |
7436 | } | |
7437 | ||
7438 | goto unknown; | |
7439 | ||
7440 | case 'I': | |
7441 | if (name[1] == 'N' && | |
7442 | name[2] == 'I' && | |
7443 | name[3] == 'T') | |
7444 | { /* INIT */ | |
7445 | return KEY_INIT; | |
7446 | } | |
7447 | ||
7448 | goto unknown; | |
7449 | ||
7450 | case 'b': | |
7451 | if (name[1] == 'i' && | |
7452 | name[2] == 'n' && | |
7453 | name[3] == 'd') | |
7454 | { /* bind */ | |
7455 | return -KEY_bind; | |
7456 | } | |
7457 | ||
7458 | goto unknown; | |
7459 | ||
7460 | case 'c': | |
7461 | if (name[1] == 'h' && | |
7462 | name[2] == 'o' && | |
7463 | name[3] == 'p') | |
7464 | { /* chop */ | |
7465 | return -KEY_chop; | |
7466 | } | |
7467 | ||
7468 | goto unknown; | |
7469 | ||
7470 | case 'd': | |
7471 | if (name[1] == 'u' && | |
7472 | name[2] == 'm' && | |
7473 | name[3] == 'p') | |
7474 | { /* dump */ | |
7475 | return -KEY_dump; | |
7476 | } | |
7477 | ||
7478 | goto unknown; | |
7479 | ||
7480 | case 'e': | |
7481 | switch (name[1]) | |
7482 | { | |
7483 | case 'a': | |
7484 | if (name[2] == 'c' && | |
7485 | name[3] == 'h') | |
7486 | { /* each */ | |
7487 | return -KEY_each; | |
7488 | } | |
7489 | ||
7490 | goto unknown; | |
7491 | ||
7492 | case 'l': | |
7493 | if (name[2] == 's' && | |
7494 | name[3] == 'e') | |
7495 | { /* else */ | |
7496 | return KEY_else; | |
7497 | } | |
7498 | ||
7499 | goto unknown; | |
7500 | ||
7501 | case 'v': | |
7502 | if (name[2] == 'a' && | |
7503 | name[3] == 'l') | |
7504 | { /* eval */ | |
7505 | return KEY_eval; | |
7506 | } | |
7507 | ||
7508 | goto unknown; | |
7509 | ||
7510 | case 'x': | |
7511 | switch (name[2]) | |
7512 | { | |
7513 | case 'e': | |
7514 | if (name[3] == 'c') | |
7515 | { /* exec */ | |
7516 | return -KEY_exec; | |
7517 | } | |
7518 | ||
7519 | goto unknown; | |
7520 | ||
7521 | case 'i': | |
7522 | if (name[3] == 't') | |
7523 | { /* exit */ | |
7524 | return -KEY_exit; | |
7525 | } | |
7526 | ||
7527 | goto unknown; | |
7528 | ||
7529 | default: | |
7530 | goto unknown; | |
7531 | } | |
7532 | ||
7533 | default: | |
7534 | goto unknown; | |
7535 | } | |
7536 | ||
7537 | case 'f': | |
7538 | if (name[1] == 'o' && | |
7539 | name[2] == 'r' && | |
7540 | name[3] == 'k') | |
7541 | { /* fork */ | |
7542 | return -KEY_fork; | |
7543 | } | |
7544 | ||
7545 | goto unknown; | |
7546 | ||
7547 | case 'g': | |
7548 | switch (name[1]) | |
7549 | { | |
7550 | case 'e': | |
7551 | if (name[2] == 't' && | |
7552 | name[3] == 'c') | |
7553 | { /* getc */ | |
7554 | return -KEY_getc; | |
7555 | } | |
7556 | ||
7557 | goto unknown; | |
7558 | ||
7559 | case 'l': | |
7560 | if (name[2] == 'o' && | |
7561 | name[3] == 'b') | |
7562 | { /* glob */ | |
7563 | return KEY_glob; | |
7564 | } | |
7565 | ||
7566 | goto unknown; | |
7567 | ||
7568 | case 'o': | |
7569 | if (name[2] == 't' && | |
7570 | name[3] == 'o') | |
7571 | { /* goto */ | |
7572 | return KEY_goto; | |
7573 | } | |
7574 | ||
7575 | goto unknown; | |
7576 | ||
7577 | case 'r': | |
7578 | if (name[2] == 'e' && | |
7579 | name[3] == 'p') | |
7580 | { /* grep */ | |
7581 | return KEY_grep; | |
7582 | } | |
7583 | ||
7584 | goto unknown; | |
7585 | ||
7586 | default: | |
7587 | goto unknown; | |
7588 | } | |
7589 | ||
7590 | case 'j': | |
7591 | if (name[1] == 'o' && | |
7592 | name[2] == 'i' && | |
7593 | name[3] == 'n') | |
7594 | { /* join */ | |
7595 | return -KEY_join; | |
7596 | } | |
7597 | ||
7598 | goto unknown; | |
7599 | ||
7600 | case 'k': | |
7601 | switch (name[1]) | |
7602 | { | |
7603 | case 'e': | |
7604 | if (name[2] == 'y' && | |
7605 | name[3] == 's') | |
7606 | { /* keys */ | |
7607 | return -KEY_keys; | |
7608 | } | |
7609 | ||
7610 | goto unknown; | |
7611 | ||
7612 | case 'i': | |
7613 | if (name[2] == 'l' && | |
7614 | name[3] == 'l') | |
7615 | { /* kill */ | |
7616 | return -KEY_kill; | |
7617 | } | |
7618 | ||
7619 | goto unknown; | |
7620 | ||
7621 | default: | |
7622 | goto unknown; | |
7623 | } | |
7624 | ||
7625 | case 'l': | |
7626 | switch (name[1]) | |
7627 | { | |
7628 | case 'a': | |
7629 | if (name[2] == 's' && | |
7630 | name[3] == 't') | |
7631 | { /* last */ | |
7632 | return KEY_last; | |
7633 | } | |
7634 | ||
7635 | goto unknown; | |
7636 | ||
7637 | case 'i': | |
7638 | if (name[2] == 'n' && | |
7639 | name[3] == 'k') | |
7640 | { /* link */ | |
7641 | return -KEY_link; | |
7642 | } | |
7643 | ||
7644 | goto unknown; | |
7645 | ||
7646 | case 'o': | |
7647 | if (name[2] == 'c' && | |
7648 | name[3] == 'k') | |
7649 | { /* lock */ | |
7650 | return -KEY_lock; | |
7651 | } | |
7652 | ||
7653 | goto unknown; | |
7654 | ||
7655 | default: | |
7656 | goto unknown; | |
7657 | } | |
7658 | ||
7659 | case 'n': | |
7660 | if (name[1] == 'e' && | |
7661 | name[2] == 'x' && | |
7662 | name[3] == 't') | |
7663 | { /* next */ | |
7664 | return KEY_next; | |
7665 | } | |
7666 | ||
7667 | goto unknown; | |
7668 | ||
7669 | case 'o': | |
7670 | if (name[1] == 'p' && | |
7671 | name[2] == 'e' && | |
7672 | name[3] == 'n') | |
7673 | { /* open */ | |
7674 | return -KEY_open; | |
7675 | } | |
7676 | ||
7677 | goto unknown; | |
7678 | ||
7679 | case 'p': | |
7680 | switch (name[1]) | |
7681 | { | |
7682 | case 'a': | |
7683 | if (name[2] == 'c' && | |
7684 | name[3] == 'k') | |
7685 | { /* pack */ | |
7686 | return -KEY_pack; | |
7687 | } | |
7688 | ||
7689 | goto unknown; | |
7690 | ||
7691 | case 'i': | |
7692 | if (name[2] == 'p' && | |
7693 | name[3] == 'e') | |
7694 | { /* pipe */ | |
7695 | return -KEY_pipe; | |
7696 | } | |
7697 | ||
7698 | goto unknown; | |
7699 | ||
7700 | case 'u': | |
7701 | if (name[2] == 's' && | |
7702 | name[3] == 'h') | |
7703 | { /* push */ | |
7704 | return -KEY_push; | |
7705 | } | |
7706 | ||
7707 | goto unknown; | |
7708 | ||
7709 | default: | |
7710 | goto unknown; | |
7711 | } | |
7712 | ||
7713 | case 'r': | |
7714 | switch (name[1]) | |
7715 | { | |
7716 | case 'a': | |
7717 | if (name[2] == 'n' && | |
7718 | name[3] == 'd') | |
7719 | { /* rand */ | |
7720 | return -KEY_rand; | |
7721 | } | |
7722 | ||
7723 | goto unknown; | |
7724 | ||
7725 | case 'e': | |
7726 | switch (name[2]) | |
7727 | { | |
7728 | case 'a': | |
7729 | if (name[3] == 'd') | |
7730 | { /* read */ | |
7731 | return -KEY_read; | |
7732 | } | |
7733 | ||
7734 | goto unknown; | |
7735 | ||
7736 | case 'c': | |
7737 | if (name[3] == 'v') | |
7738 | { /* recv */ | |
7739 | return -KEY_recv; | |
7740 | } | |
7741 | ||
7742 | goto unknown; | |
7743 | ||
7744 | case 'd': | |
7745 | if (name[3] == 'o') | |
7746 | { /* redo */ | |
7747 | return KEY_redo; | |
7748 | } | |
7749 | ||
7750 | goto unknown; | |
7751 | ||
7752 | default: | |
7753 | goto unknown; | |
7754 | } | |
7755 | ||
7756 | default: | |
7757 | goto unknown; | |
7758 | } | |
7759 | ||
7760 | case 's': | |
7761 | switch (name[1]) | |
7762 | { | |
7763 | case 'e': | |
7764 | switch (name[2]) | |
7765 | { | |
7766 | case 'e': | |
7767 | if (name[3] == 'k') | |
7768 | { /* seek */ | |
7769 | return -KEY_seek; | |
7770 | } | |
7771 | ||
7772 | goto unknown; | |
7773 | ||
7774 | case 'n': | |
7775 | if (name[3] == 'd') | |
7776 | { /* send */ | |
7777 | return -KEY_send; | |
7778 | } | |
7779 | ||
7780 | goto unknown; | |
7781 | ||
7782 | default: | |
7783 | goto unknown; | |
7784 | } | |
7785 | ||
7786 | case 'o': | |
7787 | if (name[2] == 'r' && | |
7788 | name[3] == 't') | |
7789 | { /* sort */ | |
7790 | return KEY_sort; | |
7791 | } | |
7792 | ||
7793 | goto unknown; | |
7794 | ||
7795 | case 'q': | |
7796 | if (name[2] == 'r' && | |
7797 | name[3] == 't') | |
7798 | { /* sqrt */ | |
7799 | return -KEY_sqrt; | |
7800 | } | |
7801 | ||
7802 | goto unknown; | |
7803 | ||
7804 | case 't': | |
7805 | if (name[2] == 'a' && | |
7806 | name[3] == 't') | |
7807 | { /* stat */ | |
7808 | return -KEY_stat; | |
7809 | } | |
7810 | ||
7811 | goto unknown; | |
7812 | ||
7813 | default: | |
7814 | goto unknown; | |
7815 | } | |
7816 | ||
7817 | case 't': | |
7818 | switch (name[1]) | |
7819 | { | |
7820 | case 'e': | |
7821 | if (name[2] == 'l' && | |
7822 | name[3] == 'l') | |
7823 | { /* tell */ | |
7824 | return -KEY_tell; | |
7825 | } | |
7826 | ||
7827 | goto unknown; | |
7828 | ||
7829 | case 'i': | |
7830 | switch (name[2]) | |
7831 | { | |
7832 | case 'e': | |
7833 | if (name[3] == 'd') | |
7834 | { /* tied */ | |
7835 | return KEY_tied; | |
7836 | } | |
7837 | ||
7838 | goto unknown; | |
7839 | ||
7840 | case 'm': | |
7841 | if (name[3] == 'e') | |
7842 | { /* time */ | |
7843 | return -KEY_time; | |
7844 | } | |
7845 | ||
7846 | goto unknown; | |
7847 | ||
7848 | default: | |
7849 | goto unknown; | |
7850 | } | |
7851 | ||
7852 | default: | |
7853 | goto unknown; | |
7854 | } | |
7855 | ||
7856 | case 'w': | |
0d863452 | 7857 | switch (name[1]) |
4c3bbe0f | 7858 | { |
0d863452 | 7859 | case 'a': |
952306ac RGS |
7860 | switch (name[2]) |
7861 | { | |
7862 | case 'i': | |
7863 | if (name[3] == 't') | |
7864 | { /* wait */ | |
7865 | return -KEY_wait; | |
7866 | } | |
4c3bbe0f | 7867 | |
952306ac | 7868 | goto unknown; |
4c3bbe0f | 7869 | |
952306ac RGS |
7870 | case 'r': |
7871 | if (name[3] == 'n') | |
7872 | { /* warn */ | |
7873 | return -KEY_warn; | |
7874 | } | |
4c3bbe0f | 7875 | |
952306ac | 7876 | goto unknown; |
4c3bbe0f | 7877 | |
952306ac RGS |
7878 | default: |
7879 | goto unknown; | |
7880 | } | |
0d863452 RH |
7881 | |
7882 | case 'h': | |
7883 | if (name[2] == 'e' && | |
7884 | name[3] == 'n') | |
7885 | { /* when */ | |
5458a98a | 7886 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_when : 0); |
952306ac | 7887 | } |
4c3bbe0f | 7888 | |
952306ac | 7889 | goto unknown; |
4c3bbe0f | 7890 | |
952306ac RGS |
7891 | default: |
7892 | goto unknown; | |
7893 | } | |
4c3bbe0f | 7894 | |
0d863452 RH |
7895 | default: |
7896 | goto unknown; | |
7897 | } | |
7898 | ||
952306ac | 7899 | case 5: /* 39 tokens of length 5 */ |
4c3bbe0f | 7900 | switch (name[0]) |
e2e1dd5a | 7901 | { |
4c3bbe0f MHM |
7902 | case 'B': |
7903 | if (name[1] == 'E' && | |
7904 | name[2] == 'G' && | |
7905 | name[3] == 'I' && | |
7906 | name[4] == 'N') | |
7907 | { /* BEGIN */ | |
7908 | return KEY_BEGIN; | |
7909 | } | |
7910 | ||
7911 | goto unknown; | |
7912 | ||
7913 | case 'C': | |
7914 | if (name[1] == 'H' && | |
7915 | name[2] == 'E' && | |
7916 | name[3] == 'C' && | |
7917 | name[4] == 'K') | |
7918 | { /* CHECK */ | |
7919 | return KEY_CHECK; | |
7920 | } | |
7921 | ||
7922 | goto unknown; | |
7923 | ||
7924 | case 'a': | |
7925 | switch (name[1]) | |
7926 | { | |
7927 | case 'l': | |
7928 | if (name[2] == 'a' && | |
7929 | name[3] == 'r' && | |
7930 | name[4] == 'm') | |
7931 | { /* alarm */ | |
7932 | return -KEY_alarm; | |
7933 | } | |
7934 | ||
7935 | goto unknown; | |
7936 | ||
7937 | case 't': | |
7938 | if (name[2] == 'a' && | |
7939 | name[3] == 'n' && | |
7940 | name[4] == '2') | |
7941 | { /* atan2 */ | |
7942 | return -KEY_atan2; | |
7943 | } | |
7944 | ||
7945 | goto unknown; | |
7946 | ||
7947 | default: | |
7948 | goto unknown; | |
7949 | } | |
7950 | ||
7951 | case 'b': | |
0d863452 RH |
7952 | switch (name[1]) |
7953 | { | |
7954 | case 'l': | |
7955 | if (name[2] == 'e' && | |
952306ac RGS |
7956 | name[3] == 's' && |
7957 | name[4] == 's') | |
7958 | { /* bless */ | |
7959 | return -KEY_bless; | |
7960 | } | |
4c3bbe0f | 7961 | |
952306ac | 7962 | goto unknown; |
4c3bbe0f | 7963 | |
0d863452 RH |
7964 | case 'r': |
7965 | if (name[2] == 'e' && | |
7966 | name[3] == 'a' && | |
7967 | name[4] == 'k') | |
7968 | { /* break */ | |
5458a98a | 7969 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? -KEY_break : 0); |
0d863452 RH |
7970 | } |
7971 | ||
7972 | goto unknown; | |
7973 | ||
7974 | default: | |
7975 | goto unknown; | |
7976 | } | |
7977 | ||
4c3bbe0f MHM |
7978 | case 'c': |
7979 | switch (name[1]) | |
7980 | { | |
7981 | case 'h': | |
7982 | switch (name[2]) | |
7983 | { | |
7984 | case 'd': | |
7985 | if (name[3] == 'i' && | |
7986 | name[4] == 'r') | |
7987 | { /* chdir */ | |
7988 | return -KEY_chdir; | |
7989 | } | |
7990 | ||
7991 | goto unknown; | |
7992 | ||
7993 | case 'm': | |
7994 | if (name[3] == 'o' && | |
7995 | name[4] == 'd') | |
7996 | { /* chmod */ | |
7997 | return -KEY_chmod; | |
7998 | } | |
7999 | ||
8000 | goto unknown; | |
8001 | ||
8002 | case 'o': | |
8003 | switch (name[3]) | |
8004 | { | |
8005 | case 'm': | |
8006 | if (name[4] == 'p') | |
8007 | { /* chomp */ | |
8008 | return -KEY_chomp; | |
8009 | } | |
8010 | ||
8011 | goto unknown; | |
8012 | ||
8013 | case 'w': | |
8014 | if (name[4] == 'n') | |
8015 | { /* chown */ | |
8016 | return -KEY_chown; | |
8017 | } | |
8018 | ||
8019 | goto unknown; | |
8020 | ||
8021 | default: | |
8022 | goto unknown; | |
8023 | } | |
8024 | ||
8025 | default: | |
8026 | goto unknown; | |
8027 | } | |
8028 | ||
8029 | case 'l': | |
8030 | if (name[2] == 'o' && | |
8031 | name[3] == 's' && | |
8032 | name[4] == 'e') | |
8033 | { /* close */ | |
8034 | return -KEY_close; | |
8035 | } | |
8036 | ||
8037 | goto unknown; | |
8038 | ||
8039 | case 'r': | |
8040 | if (name[2] == 'y' && | |
8041 | name[3] == 'p' && | |
8042 | name[4] == 't') | |
8043 | { /* crypt */ | |
8044 | return -KEY_crypt; | |
8045 | } | |
8046 | ||
8047 | goto unknown; | |
8048 | ||
8049 | default: | |
8050 | goto unknown; | |
8051 | } | |
8052 | ||
8053 | case 'e': | |
8054 | if (name[1] == 'l' && | |
8055 | name[2] == 's' && | |
8056 | name[3] == 'i' && | |
8057 | name[4] == 'f') | |
8058 | { /* elsif */ | |
8059 | return KEY_elsif; | |
8060 | } | |
8061 | ||
8062 | goto unknown; | |
8063 | ||
8064 | case 'f': | |
8065 | switch (name[1]) | |
8066 | { | |
8067 | case 'c': | |
8068 | if (name[2] == 'n' && | |
8069 | name[3] == 't' && | |
8070 | name[4] == 'l') | |
8071 | { /* fcntl */ | |
8072 | return -KEY_fcntl; | |
8073 | } | |
8074 | ||
8075 | goto unknown; | |
8076 | ||
8077 | case 'l': | |
8078 | if (name[2] == 'o' && | |
8079 | name[3] == 'c' && | |
8080 | name[4] == 'k') | |
8081 | { /* flock */ | |
8082 | return -KEY_flock; | |
8083 | } | |
8084 | ||
8085 | goto unknown; | |
8086 | ||
8087 | default: | |
8088 | goto unknown; | |
8089 | } | |
8090 | ||
0d863452 RH |
8091 | case 'g': |
8092 | if (name[1] == 'i' && | |
8093 | name[2] == 'v' && | |
8094 | name[3] == 'e' && | |
8095 | name[4] == 'n') | |
8096 | { /* given */ | |
5458a98a | 8097 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_given : 0); |
0d863452 RH |
8098 | } |
8099 | ||
8100 | goto unknown; | |
8101 | ||
4c3bbe0f MHM |
8102 | case 'i': |
8103 | switch (name[1]) | |
8104 | { | |
8105 | case 'n': | |
8106 | if (name[2] == 'd' && | |
8107 | name[3] == 'e' && | |
8108 | name[4] == 'x') | |
8109 | { /* index */ | |
8110 | return -KEY_index; | |
8111 | } | |
8112 | ||
8113 | goto unknown; | |
8114 | ||
8115 | case 'o': | |
8116 | if (name[2] == 'c' && | |
8117 | name[3] == 't' && | |
8118 | name[4] == 'l') | |
8119 | { /* ioctl */ | |
8120 | return -KEY_ioctl; | |
8121 | } | |
8122 | ||
8123 | goto unknown; | |
8124 | ||
8125 | default: | |
8126 | goto unknown; | |
8127 | } | |
8128 | ||
8129 | case 'l': | |
8130 | switch (name[1]) | |
8131 | { | |
8132 | case 'o': | |
8133 | if (name[2] == 'c' && | |
8134 | name[3] == 'a' && | |
8135 | name[4] == 'l') | |
8136 | { /* local */ | |
8137 | return KEY_local; | |
8138 | } | |
8139 | ||
8140 | goto unknown; | |
8141 | ||
8142 | case 's': | |
8143 | if (name[2] == 't' && | |
8144 | name[3] == 'a' && | |
8145 | name[4] == 't') | |
8146 | { /* lstat */ | |
8147 | return -KEY_lstat; | |
8148 | } | |
8149 | ||
8150 | goto unknown; | |
8151 | ||
8152 | default: | |
8153 | goto unknown; | |
8154 | } | |
8155 | ||
8156 | case 'm': | |
8157 | if (name[1] == 'k' && | |
8158 | name[2] == 'd' && | |
8159 | name[3] == 'i' && | |
8160 | name[4] == 'r') | |
8161 | { /* mkdir */ | |
8162 | return -KEY_mkdir; | |
8163 | } | |
8164 | ||
8165 | goto unknown; | |
8166 | ||
8167 | case 'p': | |
8168 | if (name[1] == 'r' && | |
8169 | name[2] == 'i' && | |
8170 | name[3] == 'n' && | |
8171 | name[4] == 't') | |
8172 | { /* print */ | |
8173 | return KEY_print; | |
8174 | } | |
8175 | ||
8176 | goto unknown; | |
8177 | ||
8178 | case 'r': | |
8179 | switch (name[1]) | |
8180 | { | |
8181 | case 'e': | |
8182 | if (name[2] == 's' && | |
8183 | name[3] == 'e' && | |
8184 | name[4] == 't') | |
8185 | { /* reset */ | |
8186 | return -KEY_reset; | |
8187 | } | |
8188 | ||
8189 | goto unknown; | |
8190 | ||
8191 | case 'm': | |
8192 | if (name[2] == 'd' && | |
8193 | name[3] == 'i' && | |
8194 | name[4] == 'r') | |
8195 | { /* rmdir */ | |
8196 | return -KEY_rmdir; | |
8197 | } | |
8198 | ||
8199 | goto unknown; | |
8200 | ||
8201 | default: | |
8202 | goto unknown; | |
8203 | } | |
8204 | ||
8205 | case 's': | |
8206 | switch (name[1]) | |
8207 | { | |
8208 | case 'e': | |
8209 | if (name[2] == 'm' && | |
8210 | name[3] == 'o' && | |
8211 | name[4] == 'p') | |
8212 | { /* semop */ | |
8213 | return -KEY_semop; | |
8214 | } | |
8215 | ||
8216 | goto unknown; | |
8217 | ||
8218 | case 'h': | |
8219 | if (name[2] == 'i' && | |
8220 | name[3] == 'f' && | |
8221 | name[4] == 't') | |
8222 | { /* shift */ | |
8223 | return -KEY_shift; | |
8224 | } | |
8225 | ||
8226 | goto unknown; | |
8227 | ||
8228 | case 'l': | |
8229 | if (name[2] == 'e' && | |
8230 | name[3] == 'e' && | |
8231 | name[4] == 'p') | |
8232 | { /* sleep */ | |
8233 | return -KEY_sleep; | |
8234 | } | |
8235 | ||
8236 | goto unknown; | |
8237 | ||
8238 | case 'p': | |
8239 | if (name[2] == 'l' && | |
8240 | name[3] == 'i' && | |
8241 | name[4] == 't') | |
8242 | { /* split */ | |
8243 | return KEY_split; | |
8244 | } | |
8245 | ||
8246 | goto unknown; | |
8247 | ||
8248 | case 'r': | |
8249 | if (name[2] == 'a' && | |
8250 | name[3] == 'n' && | |
8251 | name[4] == 'd') | |
8252 | { /* srand */ | |
8253 | return -KEY_srand; | |
8254 | } | |
8255 | ||
8256 | goto unknown; | |
8257 | ||
8258 | case 't': | |
952306ac RGS |
8259 | switch (name[2]) |
8260 | { | |
8261 | case 'a': | |
8262 | if (name[3] == 't' && | |
8263 | name[4] == 'e') | |
8264 | { /* state */ | |
5458a98a | 8265 | return (all_keywords || FEATURE_IS_ENABLED("state") ? KEY_state : 0); |
952306ac | 8266 | } |
4c3bbe0f | 8267 | |
952306ac RGS |
8268 | goto unknown; |
8269 | ||
8270 | case 'u': | |
8271 | if (name[3] == 'd' && | |
8272 | name[4] == 'y') | |
8273 | { /* study */ | |
8274 | return KEY_study; | |
8275 | } | |
8276 | ||
8277 | goto unknown; | |
8278 | ||
8279 | default: | |
8280 | goto unknown; | |
8281 | } | |
4c3bbe0f MHM |
8282 | |
8283 | default: | |
8284 | goto unknown; | |
8285 | } | |
8286 | ||
8287 | case 't': | |
8288 | if (name[1] == 'i' && | |
8289 | name[2] == 'm' && | |
8290 | name[3] == 'e' && | |
8291 | name[4] == 's') | |
8292 | { /* times */ | |
8293 | return -KEY_times; | |
8294 | } | |
8295 | ||
8296 | goto unknown; | |
8297 | ||
8298 | case 'u': | |
8299 | switch (name[1]) | |
8300 | { | |
8301 | case 'm': | |
8302 | if (name[2] == 'a' && | |
8303 | name[3] == 's' && | |
8304 | name[4] == 'k') | |
8305 | { /* umask */ | |
8306 | return -KEY_umask; | |
8307 | } | |
8308 | ||
8309 | goto unknown; | |
8310 | ||
8311 | case 'n': | |
8312 | switch (name[2]) | |
8313 | { | |
8314 | case 'd': | |
8315 | if (name[3] == 'e' && | |
8316 | name[4] == 'f') | |
8317 | { /* undef */ | |
8318 | return KEY_undef; | |
8319 | } | |
8320 | ||
8321 | goto unknown; | |
8322 | ||
8323 | case 't': | |
8324 | if (name[3] == 'i') | |
8325 | { | |
8326 | switch (name[4]) | |
8327 | { | |
8328 | case 'e': | |
8329 | { /* untie */ | |
8330 | return KEY_untie; | |
8331 | } | |
8332 | ||
4c3bbe0f MHM |
8333 | case 'l': |
8334 | { /* until */ | |
8335 | return KEY_until; | |
8336 | } | |
8337 | ||
4c3bbe0f MHM |
8338 | default: |
8339 | goto unknown; | |
8340 | } | |
8341 | } | |
8342 | ||
8343 | goto unknown; | |
8344 | ||
8345 | default: | |
8346 | goto unknown; | |
8347 | } | |
8348 | ||
8349 | case 't': | |
8350 | if (name[2] == 'i' && | |
8351 | name[3] == 'm' && | |
8352 | name[4] == 'e') | |
8353 | { /* utime */ | |
8354 | return -KEY_utime; | |
8355 | } | |
8356 | ||
8357 | goto unknown; | |
8358 | ||
8359 | default: | |
8360 | goto unknown; | |
8361 | } | |
8362 | ||
8363 | case 'w': | |
8364 | switch (name[1]) | |
8365 | { | |
8366 | case 'h': | |
8367 | if (name[2] == 'i' && | |
8368 | name[3] == 'l' && | |
8369 | name[4] == 'e') | |
8370 | { /* while */ | |
8371 | return KEY_while; | |
8372 | } | |
8373 | ||
8374 | goto unknown; | |
8375 | ||
8376 | case 'r': | |
8377 | if (name[2] == 'i' && | |
8378 | name[3] == 't' && | |
8379 | name[4] == 'e') | |
8380 | { /* write */ | |
8381 | return -KEY_write; | |
8382 | } | |
8383 | ||
8384 | goto unknown; | |
8385 | ||
8386 | default: | |
8387 | goto unknown; | |
8388 | } | |
8389 | ||
8390 | default: | |
8391 | goto unknown; | |
e2e1dd5a | 8392 | } |
4c3bbe0f MHM |
8393 | |
8394 | case 6: /* 33 tokens of length 6 */ | |
8395 | switch (name[0]) | |
8396 | { | |
8397 | case 'a': | |
8398 | if (name[1] == 'c' && | |
8399 | name[2] == 'c' && | |
8400 | name[3] == 'e' && | |
8401 | name[4] == 'p' && | |
8402 | name[5] == 't') | |
8403 | { /* accept */ | |
8404 | return -KEY_accept; | |
8405 | } | |
8406 | ||
8407 | goto unknown; | |
8408 | ||
8409 | case 'c': | |
8410 | switch (name[1]) | |
8411 | { | |
8412 | case 'a': | |
8413 | if (name[2] == 'l' && | |
8414 | name[3] == 'l' && | |
8415 | name[4] == 'e' && | |
8416 | name[5] == 'r') | |
8417 | { /* caller */ | |
8418 | return -KEY_caller; | |
8419 | } | |
8420 | ||
8421 | goto unknown; | |
8422 | ||
8423 | case 'h': | |
8424 | if (name[2] == 'r' && | |
8425 | name[3] == 'o' && | |
8426 | name[4] == 'o' && | |
8427 | name[5] == 't') | |
8428 | { /* chroot */ | |
8429 | return -KEY_chroot; | |
8430 | } | |
8431 | ||
8432 | goto unknown; | |
8433 | ||
8434 | default: | |
8435 | goto unknown; | |
8436 | } | |
8437 | ||
8438 | case 'd': | |
8439 | if (name[1] == 'e' && | |
8440 | name[2] == 'l' && | |
8441 | name[3] == 'e' && | |
8442 | name[4] == 't' && | |
8443 | name[5] == 'e') | |
8444 | { /* delete */ | |
8445 | return KEY_delete; | |
8446 | } | |
8447 | ||
8448 | goto unknown; | |
8449 | ||
8450 | case 'e': | |
8451 | switch (name[1]) | |
8452 | { | |
8453 | case 'l': | |
8454 | if (name[2] == 's' && | |
8455 | name[3] == 'e' && | |
8456 | name[4] == 'i' && | |
8457 | name[5] == 'f') | |
8458 | { /* elseif */ | |
8459 | if(ckWARN_d(WARN_SYNTAX)) | |
8460 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); | |
8461 | } | |
8462 | ||
8463 | goto unknown; | |
8464 | ||
8465 | case 'x': | |
8466 | if (name[2] == 'i' && | |
8467 | name[3] == 's' && | |
8468 | name[4] == 't' && | |
8469 | name[5] == 's') | |
8470 | { /* exists */ | |
8471 | return KEY_exists; | |
8472 | } | |
8473 | ||
8474 | goto unknown; | |
8475 | ||
8476 | default: | |
8477 | goto unknown; | |
8478 | } | |
8479 | ||
8480 | case 'f': | |
8481 | switch (name[1]) | |
8482 | { | |
8483 | case 'i': | |
8484 | if (name[2] == 'l' && | |
8485 | name[3] == 'e' && | |
8486 | name[4] == 'n' && | |
8487 | name[5] == 'o') | |
8488 | { /* fileno */ | |
8489 | return -KEY_fileno; | |
8490 | } | |
8491 | ||
8492 | goto unknown; | |
8493 | ||
8494 | case 'o': | |
8495 | if (name[2] == 'r' && | |
8496 | name[3] == 'm' && | |
8497 | name[4] == 'a' && | |
8498 | name[5] == 't') | |
8499 | { /* format */ | |
8500 | return KEY_format; | |
8501 | } | |
8502 | ||
8503 | goto unknown; | |
8504 | ||
8505 | default: | |
8506 | goto unknown; | |
8507 | } | |
8508 | ||
8509 | case 'g': | |
8510 | if (name[1] == 'm' && | |
8511 | name[2] == 't' && | |
8512 | name[3] == 'i' && | |
8513 | name[4] == 'm' && | |
8514 | name[5] == 'e') | |
8515 | { /* gmtime */ | |
8516 | return -KEY_gmtime; | |
8517 | } | |
8518 | ||
8519 | goto unknown; | |
8520 | ||
8521 | case 'l': | |
8522 | switch (name[1]) | |
8523 | { | |
8524 | case 'e': | |
8525 | if (name[2] == 'n' && | |
8526 | name[3] == 'g' && | |
8527 | name[4] == 't' && | |
8528 | name[5] == 'h') | |
8529 | { /* length */ | |
8530 | return -KEY_length; | |
8531 | } | |
8532 | ||
8533 | goto unknown; | |
8534 | ||
8535 | case 'i': | |
8536 | if (name[2] == 's' && | |
8537 | name[3] == 't' && | |
8538 | name[4] == 'e' && | |
8539 | name[5] == 'n') | |
8540 | { /* listen */ | |
8541 | return -KEY_listen; | |
8542 | } | |
8543 | ||
8544 | goto unknown; | |
8545 | ||
8546 | default: | |
8547 | goto unknown; | |
8548 | } | |
8549 | ||
8550 | case 'm': | |
8551 | if (name[1] == 's' && | |
8552 | name[2] == 'g') | |
8553 | { | |
8554 | switch (name[3]) | |
8555 | { | |
8556 | case 'c': | |
8557 | if (name[4] == 't' && | |
8558 | name[5] == 'l') | |
8559 | { /* msgctl */ | |
8560 | return -KEY_msgctl; | |
8561 | } | |
8562 | ||
8563 | goto unknown; | |
8564 | ||
8565 | case 'g': | |
8566 | if (name[4] == 'e' && | |
8567 | name[5] == 't') | |
8568 | { /* msgget */ | |
8569 | return -KEY_msgget; | |
8570 | } | |
8571 | ||
8572 | goto unknown; | |
8573 | ||
8574 | case 'r': | |
8575 | if (name[4] == 'c' && | |
8576 | name[5] == 'v') | |
8577 | { /* msgrcv */ | |
8578 | return -KEY_msgrcv; | |
8579 | } | |
8580 | ||
8581 | goto unknown; | |
8582 | ||
8583 | case 's': | |
8584 | if (name[4] == 'n' && | |
8585 | name[5] == 'd') | |
8586 | { /* msgsnd */ | |
8587 | return -KEY_msgsnd; | |
8588 | } | |
8589 | ||
8590 | goto unknown; | |
8591 | ||
8592 | default: | |
8593 | goto unknown; | |
8594 | } | |
8595 | } | |
8596 | ||
8597 | goto unknown; | |
8598 | ||
8599 | case 'p': | |
8600 | if (name[1] == 'r' && | |
8601 | name[2] == 'i' && | |
8602 | name[3] == 'n' && | |
8603 | name[4] == 't' && | |
8604 | name[5] == 'f') | |
8605 | { /* printf */ | |
8606 | return KEY_printf; | |
8607 | } | |
8608 | ||
8609 | goto unknown; | |
8610 | ||
8611 | case 'r': | |
8612 | switch (name[1]) | |
8613 | { | |
8614 | case 'e': | |
8615 | switch (name[2]) | |
8616 | { | |
8617 | case 'n': | |
8618 | if (name[3] == 'a' && | |
8619 | name[4] == 'm' && | |
8620 | name[5] == 'e') | |
8621 | { /* rename */ | |
8622 | return -KEY_rename; | |
8623 | } | |
8624 | ||
8625 | goto unknown; | |
8626 | ||
8627 | case 't': | |
8628 | if (name[3] == 'u' && | |
8629 | name[4] == 'r' && | |
8630 | name[5] == 'n') | |
8631 | { /* return */ | |
8632 | return KEY_return; | |
8633 | } | |
8634 | ||
8635 | goto unknown; | |
8636 | ||
8637 | default: | |
8638 | goto unknown; | |
8639 | } | |
8640 | ||
8641 | case 'i': | |
8642 | if (name[2] == 'n' && | |
8643 | name[3] == 'd' && | |
8644 | name[4] == 'e' && | |
8645 | name[5] == 'x') | |
8646 | { /* rindex */ | |
8647 | return -KEY_rindex; | |
8648 | } | |
8649 | ||
8650 | goto unknown; | |
8651 | ||
8652 | default: | |
8653 | goto unknown; | |
8654 | } | |
8655 | ||
8656 | case 's': | |
8657 | switch (name[1]) | |
8658 | { | |
8659 | case 'c': | |
8660 | if (name[2] == 'a' && | |
8661 | name[3] == 'l' && | |
8662 | name[4] == 'a' && | |
8663 | name[5] == 'r') | |
8664 | { /* scalar */ | |
8665 | return KEY_scalar; | |
8666 | } | |
8667 | ||
8668 | goto unknown; | |
8669 | ||
8670 | case 'e': | |
8671 | switch (name[2]) | |
8672 | { | |
8673 | case 'l': | |
8674 | if (name[3] == 'e' && | |
8675 | name[4] == 'c' && | |
8676 | name[5] == 't') | |
8677 | { /* select */ | |
8678 | return -KEY_select; | |
8679 | } | |
8680 | ||
8681 | goto unknown; | |
8682 | ||
8683 | case 'm': | |
8684 | switch (name[3]) | |
8685 | { | |
8686 | case 'c': | |
8687 | if (name[4] == 't' && | |
8688 | name[5] == 'l') | |
8689 | { /* semctl */ | |
8690 | return -KEY_semctl; | |
8691 | } | |
8692 | ||
8693 | goto unknown; | |
8694 | ||
8695 | case 'g': | |
8696 | if (name[4] == 'e' && | |
8697 | name[5] == 't') | |
8698 | { /* semget */ | |
8699 | return -KEY_semget; | |
8700 | } | |
8701 | ||
8702 | goto unknown; | |
8703 | ||
8704 | default: | |
8705 | goto unknown; | |
8706 | } | |
8707 | ||
8708 | default: | |
8709 | goto unknown; | |
8710 | } | |
8711 | ||
8712 | case 'h': | |
8713 | if (name[2] == 'm') | |
8714 | { | |
8715 | switch (name[3]) | |
8716 | { | |
8717 | case 'c': | |
8718 | if (name[4] == 't' && | |
8719 | name[5] == 'l') | |
8720 | { /* shmctl */ | |
8721 | return -KEY_shmctl; | |
8722 | } | |
8723 | ||
8724 | goto unknown; | |
8725 | ||
8726 | case 'g': | |
8727 | if (name[4] == 'e' && | |
8728 | name[5] == 't') | |
8729 | { /* shmget */ | |
8730 | return -KEY_shmget; | |
8731 | } | |
8732 | ||
8733 | goto unknown; | |
8734 | ||
8735 | default: | |
8736 | goto unknown; | |
8737 | } | |
8738 | } | |
8739 | ||
8740 | goto unknown; | |
8741 | ||
8742 | case 'o': | |
8743 | if (name[2] == 'c' && | |
8744 | name[3] == 'k' && | |
8745 | name[4] == 'e' && | |
8746 | name[5] == 't') | |
8747 | { /* socket */ | |
8748 | return -KEY_socket; | |
8749 | } | |
8750 | ||
8751 | goto unknown; | |
8752 | ||
8753 | case 'p': | |
8754 | if (name[2] == 'l' && | |
8755 | name[3] == 'i' && | |
8756 | name[4] == 'c' && | |
8757 | name[5] == 'e') | |
8758 | { /* splice */ | |
8759 | return -KEY_splice; | |
8760 | } | |
8761 | ||
8762 | goto unknown; | |
8763 | ||
8764 | case 'u': | |
8765 | if (name[2] == 'b' && | |
8766 | name[3] == 's' && | |
8767 | name[4] == 't' && | |
8768 | name[5] == 'r') | |
8769 | { /* substr */ | |
8770 | return -KEY_substr; | |
8771 | } | |
8772 | ||
8773 | goto unknown; | |
8774 | ||
8775 | case 'y': | |
8776 | if (name[2] == 's' && | |
8777 | name[3] == 't' && | |
8778 | name[4] == 'e' && | |
8779 | name[5] == 'm') | |
8780 | { /* system */ | |
8781 | return -KEY_system; | |
8782 | } | |
8783 | ||
8784 | goto unknown; | |
8785 | ||
8786 | default: | |
8787 | goto unknown; | |
8788 | } | |
8789 | ||
8790 | case 'u': | |
8791 | if (name[1] == 'n') | |
8792 | { | |
8793 | switch (name[2]) | |
8794 | { | |
8795 | case 'l': | |
8796 | switch (name[3]) | |
8797 | { | |
8798 | case 'e': | |
8799 | if (name[4] == 's' && | |
8800 | name[5] == 's') | |
8801 | { /* unless */ | |
8802 | return KEY_unless; | |
8803 | } | |
8804 | ||
8805 | goto unknown; | |
8806 | ||
8807 | case 'i': | |
8808 | if (name[4] == 'n' && | |
8809 | name[5] == 'k') | |
8810 | { /* unlink */ | |
8811 | return -KEY_unlink; | |
8812 | } | |
8813 | ||
8814 | goto unknown; | |
8815 | ||
8816 | default: | |
8817 | goto unknown; | |
8818 | } | |
8819 | ||
8820 | case 'p': | |
8821 | if (name[3] == 'a' && | |
8822 | name[4] == 'c' && | |
8823 | name[5] == 'k') | |
8824 | { /* unpack */ | |
8825 | return -KEY_unpack; | |
8826 | } | |
8827 | ||
8828 | goto unknown; | |
8829 | ||
8830 | default: | |
8831 | goto unknown; | |
8832 | } | |
8833 | } | |
8834 | ||
8835 | goto unknown; | |
8836 | ||
8837 | case 'v': | |
8838 | if (name[1] == 'a' && | |
8839 | name[2] == 'l' && | |
8840 | name[3] == 'u' && | |
8841 | name[4] == 'e' && | |
8842 | name[5] == 's') | |
8843 | { /* values */ | |
8844 | return -KEY_values; | |
8845 | } | |
8846 | ||
8847 | goto unknown; | |
8848 | ||
8849 | default: | |
8850 | goto unknown; | |
e2e1dd5a | 8851 | } |
4c3bbe0f | 8852 | |
0d863452 | 8853 | case 7: /* 29 tokens of length 7 */ |
4c3bbe0f MHM |
8854 | switch (name[0]) |
8855 | { | |
8856 | case 'D': | |
8857 | if (name[1] == 'E' && | |
8858 | name[2] == 'S' && | |
8859 | name[3] == 'T' && | |
8860 | name[4] == 'R' && | |
8861 | name[5] == 'O' && | |
8862 | name[6] == 'Y') | |
8863 | { /* DESTROY */ | |
8864 | return KEY_DESTROY; | |
8865 | } | |
8866 | ||
8867 | goto unknown; | |
8868 | ||
8869 | case '_': | |
8870 | if (name[1] == '_' && | |
8871 | name[2] == 'E' && | |
8872 | name[3] == 'N' && | |
8873 | name[4] == 'D' && | |
8874 | name[5] == '_' && | |
8875 | name[6] == '_') | |
8876 | { /* __END__ */ | |
8877 | return KEY___END__; | |
8878 | } | |
8879 | ||
8880 | goto unknown; | |
8881 | ||
8882 | case 'b': | |
8883 | if (name[1] == 'i' && | |
8884 | name[2] == 'n' && | |
8885 | name[3] == 'm' && | |
8886 | name[4] == 'o' && | |
8887 | name[5] == 'd' && | |
8888 | name[6] == 'e') | |
8889 | { /* binmode */ | |
8890 | return -KEY_binmode; | |
8891 | } | |
8892 | ||
8893 | goto unknown; | |
8894 | ||
8895 | case 'c': | |
8896 | if (name[1] == 'o' && | |
8897 | name[2] == 'n' && | |
8898 | name[3] == 'n' && | |
8899 | name[4] == 'e' && | |
8900 | name[5] == 'c' && | |
8901 | name[6] == 't') | |
8902 | { /* connect */ | |
8903 | return -KEY_connect; | |
8904 | } | |
8905 | ||
8906 | goto unknown; | |
8907 | ||
8908 | case 'd': | |
8909 | switch (name[1]) | |
8910 | { | |
8911 | case 'b': | |
8912 | if (name[2] == 'm' && | |
8913 | name[3] == 'o' && | |
8914 | name[4] == 'p' && | |
8915 | name[5] == 'e' && | |
8916 | name[6] == 'n') | |
8917 | { /* dbmopen */ | |
8918 | return -KEY_dbmopen; | |
8919 | } | |
8920 | ||
8921 | goto unknown; | |
8922 | ||
8923 | case 'e': | |
0d863452 RH |
8924 | if (name[2] == 'f') |
8925 | { | |
8926 | switch (name[3]) | |
8927 | { | |
8928 | case 'a': | |
8929 | if (name[4] == 'u' && | |
8930 | name[5] == 'l' && | |
8931 | name[6] == 't') | |
8932 | { /* default */ | |
5458a98a | 8933 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_default : 0); |
0d863452 RH |
8934 | } |
8935 | ||
8936 | goto unknown; | |
8937 | ||
8938 | case 'i': | |
8939 | if (name[4] == 'n' && | |
952306ac RGS |
8940 | name[5] == 'e' && |
8941 | name[6] == 'd') | |
8942 | { /* defined */ | |
8943 | return KEY_defined; | |
8944 | } | |
4c3bbe0f | 8945 | |
952306ac | 8946 | goto unknown; |
4c3bbe0f | 8947 | |
952306ac RGS |
8948 | default: |
8949 | goto unknown; | |
8950 | } | |
0d863452 RH |
8951 | } |
8952 | ||
8953 | goto unknown; | |
8954 | ||
8955 | default: | |
8956 | goto unknown; | |
8957 | } | |
4c3bbe0f MHM |
8958 | |
8959 | case 'f': | |
8960 | if (name[1] == 'o' && | |
8961 | name[2] == 'r' && | |
8962 | name[3] == 'e' && | |
8963 | name[4] == 'a' && | |
8964 | name[5] == 'c' && | |
8965 | name[6] == 'h') | |
8966 | { /* foreach */ | |
8967 | return KEY_foreach; | |
8968 | } | |
8969 | ||
8970 | goto unknown; | |
8971 | ||
8972 | case 'g': | |
8973 | if (name[1] == 'e' && | |
8974 | name[2] == 't' && | |
8975 | name[3] == 'p') | |
8976 | { | |
8977 | switch (name[4]) | |
8978 | { | |
8979 | case 'g': | |
8980 | if (name[5] == 'r' && | |
8981 | name[6] == 'p') | |
8982 | { /* getpgrp */ | |
8983 | return -KEY_getpgrp; | |
8984 | } | |
8985 | ||
8986 | goto unknown; | |
8987 | ||
8988 | case 'p': | |
8989 | if (name[5] == 'i' && | |
8990 | name[6] == 'd') | |
8991 | { /* getppid */ | |
8992 | return -KEY_getppid; | |
8993 | } | |
8994 | ||
8995 | goto unknown; | |
8996 | ||
8997 | default: | |
8998 | goto unknown; | |
8999 | } | |
9000 | } | |
9001 | ||
9002 | goto unknown; | |
9003 | ||
9004 | case 'l': | |
9005 | if (name[1] == 'c' && | |
9006 | name[2] == 'f' && | |
9007 | name[3] == 'i' && | |
9008 | name[4] == 'r' && | |
9009 | name[5] == 's' && | |
9010 | name[6] == 't') | |
9011 | { /* lcfirst */ | |
9012 | return -KEY_lcfirst; | |
9013 | } | |
9014 | ||
9015 | goto unknown; | |
9016 | ||
9017 | case 'o': | |
9018 | if (name[1] == 'p' && | |
9019 | name[2] == 'e' && | |
9020 | name[3] == 'n' && | |
9021 | name[4] == 'd' && | |
9022 | name[5] == 'i' && | |
9023 | name[6] == 'r') | |
9024 | { /* opendir */ | |
9025 | return -KEY_opendir; | |
9026 | } | |
9027 | ||
9028 | goto unknown; | |
9029 | ||
9030 | case 'p': | |
9031 | if (name[1] == 'a' && | |
9032 | name[2] == 'c' && | |
9033 | name[3] == 'k' && | |
9034 | name[4] == 'a' && | |
9035 | name[5] == 'g' && | |
9036 | name[6] == 'e') | |
9037 | { /* package */ | |
9038 | return KEY_package; | |
9039 | } | |
9040 | ||
9041 | goto unknown; | |
9042 | ||
9043 | case 'r': | |
9044 | if (name[1] == 'e') | |
9045 | { | |
9046 | switch (name[2]) | |
9047 | { | |
9048 | case 'a': | |
9049 | if (name[3] == 'd' && | |
9050 | name[4] == 'd' && | |
9051 | name[5] == 'i' && | |
9052 | name[6] == 'r') | |
9053 | { /* readdir */ | |
9054 | return -KEY_readdir; | |
9055 | } | |
9056 | ||
9057 | goto unknown; | |
9058 | ||
9059 | case 'q': | |
9060 | if (name[3] == 'u' && | |
9061 | name[4] == 'i' && | |
9062 | name[5] == 'r' && | |
9063 | name[6] == 'e') | |
9064 | { /* require */ | |
9065 | return KEY_require; | |
9066 | } | |
9067 | ||
9068 | goto unknown; | |
9069 | ||
9070 | case 'v': | |
9071 | if (name[3] == 'e' && | |
9072 | name[4] == 'r' && | |
9073 | name[5] == 's' && | |
9074 | name[6] == 'e') | |
9075 | { /* reverse */ | |
9076 | return -KEY_reverse; | |
9077 | } | |
9078 | ||
9079 | goto unknown; | |
9080 | ||
9081 | default: | |
9082 | goto unknown; | |
9083 | } | |
9084 | } | |
9085 | ||
9086 | goto unknown; | |
9087 | ||
9088 | case 's': | |
9089 | switch (name[1]) | |
9090 | { | |
9091 | case 'e': | |
9092 | switch (name[2]) | |
9093 | { | |
9094 | case 'e': | |
9095 | if (name[3] == 'k' && | |
9096 | name[4] == 'd' && | |
9097 | name[5] == 'i' && | |
9098 | name[6] == 'r') | |
9099 | { /* seekdir */ | |
9100 | return -KEY_seekdir; | |
9101 | } | |
9102 | ||
9103 | goto unknown; | |
9104 | ||
9105 | case 't': | |
9106 | if (name[3] == 'p' && | |
9107 | name[4] == 'g' && | |
9108 | name[5] == 'r' && | |
9109 | name[6] == 'p') | |
9110 | { /* setpgrp */ | |
9111 | return -KEY_setpgrp; | |
9112 | } | |
9113 | ||
9114 | goto unknown; | |
9115 | ||
9116 | default: | |
9117 | goto unknown; | |
9118 | } | |
9119 | ||
9120 | case 'h': | |
9121 | if (name[2] == 'm' && | |
9122 | name[3] == 'r' && | |
9123 | name[4] == 'e' && | |
9124 | name[5] == 'a' && | |
9125 | name[6] == 'd') | |
9126 | { /* shmread */ | |
9127 | return -KEY_shmread; | |
9128 | } | |
9129 | ||
9130 | goto unknown; | |
9131 | ||
9132 | case 'p': | |
9133 | if (name[2] == 'r' && | |
9134 | name[3] == 'i' && | |
9135 | name[4] == 'n' && | |
9136 | name[5] == 't' && | |
9137 | name[6] == 'f') | |
9138 | { /* sprintf */ | |
9139 | return -KEY_sprintf; | |
9140 | } | |
9141 | ||
9142 | goto unknown; | |
9143 | ||
9144 | case 'y': | |
9145 | switch (name[2]) | |
9146 | { | |
9147 | case 'm': | |
9148 | if (name[3] == 'l' && | |
9149 | name[4] == 'i' && | |
9150 | name[5] == 'n' && | |
9151 | name[6] == 'k') | |
9152 | { /* symlink */ | |
9153 | return -KEY_symlink; | |
9154 | } | |
9155 | ||
9156 | goto unknown; | |
9157 | ||
9158 | case 's': | |
9159 | switch (name[3]) | |
9160 | { | |
9161 | case 'c': | |
9162 | if (name[4] == 'a' && | |
9163 | name[5] == 'l' && | |
9164 | name[6] == 'l') | |
9165 | { /* syscall */ | |
9166 | return -KEY_syscall; | |
9167 | } | |
9168 | ||
9169 | goto unknown; | |
9170 | ||
9171 | case 'o': | |
9172 | if (name[4] == 'p' && | |
9173 | name[5] == 'e' && | |
9174 | name[6] == 'n') | |
9175 | { /* sysopen */ | |
9176 | return -KEY_sysopen; | |
9177 | } | |
9178 | ||
9179 | goto unknown; | |
9180 | ||
9181 | case 'r': | |
9182 | if (name[4] == 'e' && | |
9183 | name[5] == 'a' && | |
9184 | name[6] == 'd') | |
9185 | { /* sysread */ | |
9186 | return -KEY_sysread; | |
9187 | } | |
9188 | ||
9189 | goto unknown; | |
9190 | ||
9191 | case 's': | |
9192 | if (name[4] == 'e' && | |
9193 | name[5] == 'e' && | |
9194 | name[6] == 'k') | |
9195 | { /* sysseek */ | |
9196 | return -KEY_sysseek; | |
9197 | } | |
9198 | ||
9199 | goto unknown; | |
9200 | ||
9201 | default: | |
9202 | goto unknown; | |
9203 | } | |
9204 | ||
9205 | default: | |
9206 | goto unknown; | |
9207 | } | |
9208 | ||
9209 | default: | |
9210 | goto unknown; | |
9211 | } | |
9212 | ||
9213 | case 't': | |
9214 | if (name[1] == 'e' && | |
9215 | name[2] == 'l' && | |
9216 | name[3] == 'l' && | |
9217 | name[4] == 'd' && | |
9218 | name[5] == 'i' && | |
9219 | name[6] == 'r') | |
9220 | { /* telldir */ | |
9221 | return -KEY_telldir; | |
9222 | } | |
9223 | ||
9224 | goto unknown; | |
9225 | ||
9226 | case 'u': | |
9227 | switch (name[1]) | |
9228 | { | |
9229 | case 'c': | |
9230 | if (name[2] == 'f' && | |
9231 | name[3] == 'i' && | |
9232 | name[4] == 'r' && | |
9233 | name[5] == 's' && | |
9234 | name[6] == 't') | |
9235 | { /* ucfirst */ | |
9236 | return -KEY_ucfirst; | |
9237 | } | |
9238 | ||
9239 | goto unknown; | |
9240 | ||
9241 | case 'n': | |
9242 | if (name[2] == 's' && | |
9243 | name[3] == 'h' && | |
9244 | name[4] == 'i' && | |
9245 | name[5] == 'f' && | |
9246 | name[6] == 't') | |
9247 | { /* unshift */ | |
9248 | return -KEY_unshift; | |
9249 | } | |
9250 | ||
9251 | goto unknown; | |
9252 | ||
9253 | default: | |
9254 | goto unknown; | |
9255 | } | |
9256 | ||
9257 | case 'w': | |
9258 | if (name[1] == 'a' && | |
9259 | name[2] == 'i' && | |
9260 | name[3] == 't' && | |
9261 | name[4] == 'p' && | |
9262 | name[5] == 'i' && | |
9263 | name[6] == 'd') | |
9264 | { /* waitpid */ | |
9265 | return -KEY_waitpid; | |
9266 | } | |
9267 | ||
9268 | goto unknown; | |
9269 | ||
9270 | default: | |
9271 | goto unknown; | |
9272 | } | |
9273 | ||
9274 | case 8: /* 26 tokens of length 8 */ | |
9275 | switch (name[0]) | |
9276 | { | |
9277 | case 'A': | |
9278 | if (name[1] == 'U' && | |
9279 | name[2] == 'T' && | |
9280 | name[3] == 'O' && | |
9281 | name[4] == 'L' && | |
9282 | name[5] == 'O' && | |
9283 | name[6] == 'A' && | |
9284 | name[7] == 'D') | |
9285 | { /* AUTOLOAD */ | |
9286 | return KEY_AUTOLOAD; | |
9287 | } | |
9288 | ||
9289 | goto unknown; | |
9290 | ||
9291 | case '_': | |
9292 | if (name[1] == '_') | |
9293 | { | |
9294 | switch (name[2]) | |
9295 | { | |
9296 | case 'D': | |
9297 | if (name[3] == 'A' && | |
9298 | name[4] == 'T' && | |
9299 | name[5] == 'A' && | |
9300 | name[6] == '_' && | |
9301 | name[7] == '_') | |
9302 | { /* __DATA__ */ | |
9303 | return KEY___DATA__; | |
9304 | } | |
9305 | ||
9306 | goto unknown; | |
9307 | ||
9308 | case 'F': | |
9309 | if (name[3] == 'I' && | |
9310 | name[4] == 'L' && | |
9311 | name[5] == 'E' && | |
9312 | name[6] == '_' && | |
9313 | name[7] == '_') | |
9314 | { /* __FILE__ */ | |
9315 | return -KEY___FILE__; | |
9316 | } | |
9317 | ||
9318 | goto unknown; | |
9319 | ||
9320 | case 'L': | |
9321 | if (name[3] == 'I' && | |
9322 | name[4] == 'N' && | |
9323 | name[5] == 'E' && | |
9324 | name[6] == '_' && | |
9325 | name[7] == '_') | |
9326 | { /* __LINE__ */ | |
9327 | return -KEY___LINE__; | |
9328 | } | |
9329 | ||
9330 | goto unknown; | |
9331 | ||
9332 | default: | |
9333 | goto unknown; | |
9334 | } | |
9335 | } | |
9336 | ||
9337 | goto unknown; | |
9338 | ||
9339 | case 'c': | |
9340 | switch (name[1]) | |
9341 | { | |
9342 | case 'l': | |
9343 | if (name[2] == 'o' && | |
9344 | name[3] == 's' && | |
9345 | name[4] == 'e' && | |
9346 | name[5] == 'd' && | |
9347 | name[6] == 'i' && | |
9348 | name[7] == 'r') | |
9349 | { /* closedir */ | |
9350 | return -KEY_closedir; | |
9351 | } | |
9352 | ||
9353 | goto unknown; | |
9354 | ||
9355 | case 'o': | |
9356 | if (name[2] == 'n' && | |
9357 | name[3] == 't' && | |
9358 | name[4] == 'i' && | |
9359 | name[5] == 'n' && | |
9360 | name[6] == 'u' && | |
9361 | name[7] == 'e') | |
9362 | { /* continue */ | |
9363 | return -KEY_continue; | |
9364 | } | |
9365 | ||
9366 | goto unknown; | |
9367 | ||
9368 | default: | |
9369 | goto unknown; | |
9370 | } | |
9371 | ||
9372 | case 'd': | |
9373 | if (name[1] == 'b' && | |
9374 | name[2] == 'm' && | |
9375 | name[3] == 'c' && | |
9376 | name[4] == 'l' && | |
9377 | name[5] == 'o' && | |
9378 | name[6] == 's' && | |
9379 | name[7] == 'e') | |
9380 | { /* dbmclose */ | |
9381 | return -KEY_dbmclose; | |
9382 | } | |
9383 | ||
9384 | goto unknown; | |
9385 | ||
9386 | case 'e': | |
9387 | if (name[1] == 'n' && | |
9388 | name[2] == 'd') | |
9389 | { | |
9390 | switch (name[3]) | |
9391 | { | |
9392 | case 'g': | |
9393 | if (name[4] == 'r' && | |
9394 | name[5] == 'e' && | |
9395 | name[6] == 'n' && | |
9396 | name[7] == 't') | |
9397 | { /* endgrent */ | |
9398 | return -KEY_endgrent; | |
9399 | } | |
9400 | ||
9401 | goto unknown; | |
9402 | ||
9403 | case 'p': | |
9404 | if (name[4] == 'w' && | |
9405 | name[5] == 'e' && | |
9406 | name[6] == 'n' && | |
9407 | name[7] == 't') | |
9408 | { /* endpwent */ | |
9409 | return -KEY_endpwent; | |
9410 | } | |
9411 | ||
9412 | goto unknown; | |
9413 | ||
9414 | default: | |
9415 | goto unknown; | |
9416 | } | |
9417 | } | |
9418 | ||
9419 | goto unknown; | |
9420 | ||
9421 | case 'f': | |
9422 | if (name[1] == 'o' && | |
9423 | name[2] == 'r' && | |
9424 | name[3] == 'm' && | |
9425 | name[4] == 'l' && | |
9426 | name[5] == 'i' && | |
9427 | name[6] == 'n' && | |
9428 | name[7] == 'e') | |
9429 | { /* formline */ | |
9430 | return -KEY_formline; | |
9431 | } | |
9432 | ||
9433 | goto unknown; | |
9434 | ||
9435 | case 'g': | |
9436 | if (name[1] == 'e' && | |
9437 | name[2] == 't') | |
9438 | { | |
9439 | switch (name[3]) | |
9440 | { | |
9441 | case 'g': | |
9442 | if (name[4] == 'r') | |
9443 | { | |
9444 | switch (name[5]) | |
9445 | { | |
9446 | case 'e': | |
9447 | if (name[6] == 'n' && | |
9448 | name[7] == 't') | |
9449 | { /* getgrent */ | |
9450 | return -KEY_getgrent; | |
9451 | } | |
9452 | ||
9453 | goto unknown; | |
9454 | ||
9455 | case 'g': | |
9456 | if (name[6] == 'i' && | |
9457 | name[7] == 'd') | |
9458 | { /* getgrgid */ | |
9459 | return -KEY_getgrgid; | |
9460 | } | |
9461 | ||
9462 | goto unknown; | |
9463 | ||
9464 | case 'n': | |
9465 | if (name[6] == 'a' && | |
9466 | name[7] == 'm') | |
9467 | { /* getgrnam */ | |
9468 | return -KEY_getgrnam; | |
9469 | } | |
9470 | ||
9471 | goto unknown; | |
9472 | ||
9473 | default: | |
9474 | goto unknown; | |
9475 | } | |
9476 | } | |
9477 | ||
9478 | goto unknown; | |
9479 | ||
9480 | case 'l': | |
9481 | if (name[4] == 'o' && | |
9482 | name[5] == 'g' && | |
9483 | name[6] == 'i' && | |
9484 | name[7] == 'n') | |
9485 | { /* getlogin */ | |
9486 | return -KEY_getlogin; | |
9487 | } | |
9488 | ||
9489 | goto unknown; | |
9490 | ||
9491 | case 'p': | |
9492 | if (name[4] == 'w') | |
9493 | { | |
9494 | switch (name[5]) | |
9495 | { | |
9496 | case 'e': | |
9497 | if (name[6] == 'n' && | |
9498 | name[7] == 't') | |
9499 | { /* getpwent */ | |
9500 | return -KEY_getpwent; | |
9501 | } | |
9502 | ||
9503 | goto unknown; | |
9504 | ||
9505 | case 'n': | |
9506 | if (name[6] == 'a' && | |
9507 | name[7] == 'm') | |
9508 | { /* getpwnam */ | |
9509 | return -KEY_getpwnam; | |
9510 | } | |
9511 | ||
9512 | goto unknown; | |
9513 | ||
9514 | case 'u': | |
9515 | if (name[6] == 'i' && | |
9516 | name[7] == 'd') | |
9517 | { /* getpwuid */ | |
9518 | return -KEY_getpwuid; | |
9519 | } | |
9520 | ||
9521 | goto unknown; | |
9522 | ||
9523 | default: | |
9524 | goto unknown; | |
9525 | } | |
9526 | } | |
9527 | ||
9528 | goto unknown; | |
9529 | ||
9530 | default: | |
9531 | goto unknown; | |
9532 | } | |
9533 | } | |
9534 | ||
9535 | goto unknown; | |
9536 | ||
9537 | case 'r': | |
9538 | if (name[1] == 'e' && | |
9539 | name[2] == 'a' && | |
9540 | name[3] == 'd') | |
9541 | { | |
9542 | switch (name[4]) | |
9543 | { | |
9544 | case 'l': | |
9545 | if (name[5] == 'i' && | |
9546 | name[6] == 'n') | |
9547 | { | |
9548 | switch (name[7]) | |
9549 | { | |
9550 | case 'e': | |
9551 | { /* readline */ | |
9552 | return -KEY_readline; | |
9553 | } | |
9554 | ||
4c3bbe0f MHM |
9555 | case 'k': |
9556 | { /* readlink */ | |
9557 | return -KEY_readlink; | |
9558 | } | |
9559 | ||
4c3bbe0f MHM |
9560 | default: |
9561 | goto unknown; | |
9562 | } | |
9563 | } | |
9564 | ||
9565 | goto unknown; | |
9566 | ||
9567 | case 'p': | |
9568 | if (name[5] == 'i' && | |
9569 | name[6] == 'p' && | |
9570 | name[7] == 'e') | |
9571 | { /* readpipe */ | |
9572 | return -KEY_readpipe; | |
9573 | } | |
9574 | ||
9575 | goto unknown; | |
9576 | ||
9577 | default: | |
9578 | goto unknown; | |
9579 | } | |
9580 | } | |
9581 | ||
9582 | goto unknown; | |
9583 | ||
9584 | case 's': | |
9585 | switch (name[1]) | |
9586 | { | |
9587 | case 'e': | |
9588 | if (name[2] == 't') | |
9589 | { | |
9590 | switch (name[3]) | |
9591 | { | |
9592 | case 'g': | |
9593 | if (name[4] == 'r' && | |
9594 | name[5] == 'e' && | |
9595 | name[6] == 'n' && | |
9596 | name[7] == 't') | |
9597 | { /* setgrent */ | |
9598 | return -KEY_setgrent; | |
9599 | } | |
9600 | ||
9601 | goto unknown; | |
9602 | ||
9603 | case 'p': | |
9604 | if (name[4] == 'w' && | |
9605 | name[5] == 'e' && | |
9606 | name[6] == 'n' && | |
9607 | name[7] == 't') | |
9608 | { /* setpwent */ | |
9609 | return -KEY_setpwent; | |
9610 | } | |
9611 | ||
9612 | goto unknown; | |
9613 | ||
9614 | default: | |
9615 | goto unknown; | |
9616 | } | |
9617 | } | |
9618 | ||
9619 | goto unknown; | |
9620 | ||
9621 | case 'h': | |
9622 | switch (name[2]) | |
9623 | { | |
9624 | case 'm': | |
9625 | if (name[3] == 'w' && | |
9626 | name[4] == 'r' && | |
9627 | name[5] == 'i' && | |
9628 | name[6] == 't' && | |
9629 | name[7] == 'e') | |
9630 | { /* shmwrite */ | |
9631 | return -KEY_shmwrite; | |
9632 | } | |
9633 | ||
9634 | goto unknown; | |
9635 | ||
9636 | case 'u': | |
9637 | if (name[3] == 't' && | |
9638 | name[4] == 'd' && | |
9639 | name[5] == 'o' && | |
9640 | name[6] == 'w' && | |
9641 | name[7] == 'n') | |
9642 | { /* shutdown */ | |
9643 | return -KEY_shutdown; | |
9644 | } | |
9645 | ||
9646 | goto unknown; | |
9647 | ||
9648 | default: | |
9649 | goto unknown; | |
9650 | } | |
9651 | ||
9652 | case 'y': | |
9653 | if (name[2] == 's' && | |
9654 | name[3] == 'w' && | |
9655 | name[4] == 'r' && | |
9656 | name[5] == 'i' && | |
9657 | name[6] == 't' && | |
9658 | name[7] == 'e') | |
9659 | { /* syswrite */ | |
9660 | return -KEY_syswrite; | |
9661 | } | |
9662 | ||
9663 | goto unknown; | |
9664 | ||
9665 | default: | |
9666 | goto unknown; | |
9667 | } | |
9668 | ||
9669 | case 't': | |
9670 | if (name[1] == 'r' && | |
9671 | name[2] == 'u' && | |
9672 | name[3] == 'n' && | |
9673 | name[4] == 'c' && | |
9674 | name[5] == 'a' && | |
9675 | name[6] == 't' && | |
9676 | name[7] == 'e') | |
9677 | { /* truncate */ | |
9678 | return -KEY_truncate; | |
9679 | } | |
9680 | ||
9681 | goto unknown; | |
9682 | ||
9683 | default: | |
9684 | goto unknown; | |
9685 | } | |
9686 | ||
3c10abe3 | 9687 | case 9: /* 9 tokens of length 9 */ |
4c3bbe0f MHM |
9688 | switch (name[0]) |
9689 | { | |
3c10abe3 AG |
9690 | case 'U': |
9691 | if (name[1] == 'N' && | |
9692 | name[2] == 'I' && | |
9693 | name[3] == 'T' && | |
9694 | name[4] == 'C' && | |
9695 | name[5] == 'H' && | |
9696 | name[6] == 'E' && | |
9697 | name[7] == 'C' && | |
9698 | name[8] == 'K') | |
9699 | { /* UNITCHECK */ | |
9700 | return KEY_UNITCHECK; | |
9701 | } | |
9702 | ||
9703 | goto unknown; | |
9704 | ||
4c3bbe0f MHM |
9705 | case 'e': |
9706 | if (name[1] == 'n' && | |
9707 | name[2] == 'd' && | |
9708 | name[3] == 'n' && | |
9709 | name[4] == 'e' && | |
9710 | name[5] == 't' && | |
9711 | name[6] == 'e' && | |
9712 | name[7] == 'n' && | |
9713 | name[8] == 't') | |
9714 | { /* endnetent */ | |
9715 | return -KEY_endnetent; | |
9716 | } | |
9717 | ||
9718 | goto unknown; | |
9719 | ||
9720 | case 'g': | |
9721 | if (name[1] == 'e' && | |
9722 | name[2] == 't' && | |
9723 | name[3] == 'n' && | |
9724 | name[4] == 'e' && | |
9725 | name[5] == 't' && | |
9726 | name[6] == 'e' && | |
9727 | name[7] == 'n' && | |
9728 | name[8] == 't') | |
9729 | { /* getnetent */ | |
9730 | return -KEY_getnetent; | |
9731 | } | |
9732 | ||
9733 | goto unknown; | |
9734 | ||
9735 | case 'l': | |
9736 | if (name[1] == 'o' && | |
9737 | name[2] == 'c' && | |
9738 | name[3] == 'a' && | |
9739 | name[4] == 'l' && | |
9740 | name[5] == 't' && | |
9741 | name[6] == 'i' && | |
9742 | name[7] == 'm' && | |
9743 | name[8] == 'e') | |
9744 | { /* localtime */ | |
9745 | return -KEY_localtime; | |
9746 | } | |
9747 | ||
9748 | goto unknown; | |
9749 | ||
9750 | case 'p': | |
9751 | if (name[1] == 'r' && | |
9752 | name[2] == 'o' && | |
9753 | name[3] == 't' && | |
9754 | name[4] == 'o' && | |
9755 | name[5] == 't' && | |
9756 | name[6] == 'y' && | |
9757 | name[7] == 'p' && | |
9758 | name[8] == 'e') | |
9759 | { /* prototype */ | |
9760 | return KEY_prototype; | |
9761 | } | |
9762 | ||
9763 | goto unknown; | |
9764 | ||
9765 | case 'q': | |
9766 | if (name[1] == 'u' && | |
9767 | name[2] == 'o' && | |
9768 | name[3] == 't' && | |
9769 | name[4] == 'e' && | |
9770 | name[5] == 'm' && | |
9771 | name[6] == 'e' && | |
9772 | name[7] == 't' && | |
9773 | name[8] == 'a') | |
9774 | { /* quotemeta */ | |
9775 | return -KEY_quotemeta; | |
9776 | } | |
9777 | ||
9778 | goto unknown; | |
9779 | ||
9780 | case 'r': | |
9781 | if (name[1] == 'e' && | |
9782 | name[2] == 'w' && | |
9783 | name[3] == 'i' && | |
9784 | name[4] == 'n' && | |
9785 | name[5] == 'd' && | |
9786 | name[6] == 'd' && | |
9787 | name[7] == 'i' && | |
9788 | name[8] == 'r') | |
9789 | { /* rewinddir */ | |
9790 | return -KEY_rewinddir; | |
9791 | } | |
9792 | ||
9793 | goto unknown; | |
9794 | ||
9795 | case 's': | |
9796 | if (name[1] == 'e' && | |
9797 | name[2] == 't' && | |
9798 | name[3] == 'n' && | |
9799 | name[4] == 'e' && | |
9800 | name[5] == 't' && | |
9801 | name[6] == 'e' && | |
9802 | name[7] == 'n' && | |
9803 | name[8] == 't') | |
9804 | { /* setnetent */ | |
9805 | return -KEY_setnetent; | |
9806 | } | |
9807 | ||
9808 | goto unknown; | |
9809 | ||
9810 | case 'w': | |
9811 | if (name[1] == 'a' && | |
9812 | name[2] == 'n' && | |
9813 | name[3] == 't' && | |
9814 | name[4] == 'a' && | |
9815 | name[5] == 'r' && | |
9816 | name[6] == 'r' && | |
9817 | name[7] == 'a' && | |
9818 | name[8] == 'y') | |
9819 | { /* wantarray */ | |
9820 | return -KEY_wantarray; | |
9821 | } | |
9822 | ||
9823 | goto unknown; | |
9824 | ||
9825 | default: | |
9826 | goto unknown; | |
9827 | } | |
9828 | ||
9829 | case 10: /* 9 tokens of length 10 */ | |
9830 | switch (name[0]) | |
9831 | { | |
9832 | case 'e': | |
9833 | if (name[1] == 'n' && | |
9834 | name[2] == 'd') | |
9835 | { | |
9836 | switch (name[3]) | |
9837 | { | |
9838 | case 'h': | |
9839 | if (name[4] == 'o' && | |
9840 | name[5] == 's' && | |
9841 | name[6] == 't' && | |
9842 | name[7] == 'e' && | |
9843 | name[8] == 'n' && | |
9844 | name[9] == 't') | |
9845 | { /* endhostent */ | |
9846 | return -KEY_endhostent; | |
9847 | } | |
9848 | ||
9849 | goto unknown; | |
9850 | ||
9851 | case 's': | |
9852 | if (name[4] == 'e' && | |
9853 | name[5] == 'r' && | |
9854 | name[6] == 'v' && | |
9855 | name[7] == 'e' && | |
9856 | name[8] == 'n' && | |
9857 | name[9] == 't') | |
9858 | { /* endservent */ | |
9859 | return -KEY_endservent; | |
9860 | } | |
9861 | ||
9862 | goto unknown; | |
9863 | ||
9864 | default: | |
9865 | goto unknown; | |
9866 | } | |
9867 | } | |
9868 | ||
9869 | goto unknown; | |
9870 | ||
9871 | case 'g': | |
9872 | if (name[1] == 'e' && | |
9873 | name[2] == 't') | |
9874 | { | |
9875 | switch (name[3]) | |
9876 | { | |
9877 | case 'h': | |
9878 | if (name[4] == 'o' && | |
9879 | name[5] == 's' && | |
9880 | name[6] == 't' && | |
9881 | name[7] == 'e' && | |
9882 | name[8] == 'n' && | |
9883 | name[9] == 't') | |
9884 | { /* gethostent */ | |
9885 | return -KEY_gethostent; | |
9886 | } | |
9887 | ||
9888 | goto unknown; | |
9889 | ||
9890 | case 's': | |
9891 | switch (name[4]) | |
9892 | { | |
9893 | case 'e': | |
9894 | if (name[5] == 'r' && | |
9895 | name[6] == 'v' && | |
9896 | name[7] == 'e' && | |
9897 | name[8] == 'n' && | |
9898 | name[9] == 't') | |
9899 | { /* getservent */ | |
9900 | return -KEY_getservent; | |
9901 | } | |
9902 | ||
9903 | goto unknown; | |
9904 | ||
9905 | case 'o': | |
9906 | if (name[5] == 'c' && | |
9907 | name[6] == 'k' && | |
9908 | name[7] == 'o' && | |
9909 | name[8] == 'p' && | |
9910 | name[9] == 't') | |
9911 | { /* getsockopt */ | |
9912 | return -KEY_getsockopt; | |
9913 | } | |
9914 | ||
9915 | goto unknown; | |
9916 | ||
9917 | default: | |
9918 | goto unknown; | |
9919 | } | |
9920 | ||
9921 | default: | |
9922 | goto unknown; | |
9923 | } | |
9924 | } | |
9925 | ||
9926 | goto unknown; | |
9927 | ||
9928 | case 's': | |
9929 | switch (name[1]) | |
9930 | { | |
9931 | case 'e': | |
9932 | if (name[2] == 't') | |
9933 | { | |
9934 | switch (name[3]) | |
9935 | { | |
9936 | case 'h': | |
9937 | if (name[4] == 'o' && | |
9938 | name[5] == 's' && | |
9939 | name[6] == 't' && | |
9940 | name[7] == 'e' && | |
9941 | name[8] == 'n' && | |
9942 | name[9] == 't') | |
9943 | { /* sethostent */ | |
9944 | return -KEY_sethostent; | |
9945 | } | |
9946 | ||
9947 | goto unknown; | |
9948 | ||
9949 | case 's': | |
9950 | switch (name[4]) | |
9951 | { | |
9952 | case 'e': | |
9953 | if (name[5] == 'r' && | |
9954 | name[6] == 'v' && | |
9955 | name[7] == 'e' && | |
9956 | name[8] == 'n' && | |
9957 | name[9] == 't') | |
9958 | { /* setservent */ | |
9959 | return -KEY_setservent; | |
9960 | } | |
9961 | ||
9962 | goto unknown; | |
9963 | ||
9964 | case 'o': | |
9965 | if (name[5] == 'c' && | |
9966 | name[6] == 'k' && | |
9967 | name[7] == 'o' && | |
9968 | name[8] == 'p' && | |
9969 | name[9] == 't') | |
9970 | { /* setsockopt */ | |
9971 | return -KEY_setsockopt; | |
9972 | } | |
9973 | ||
9974 | goto unknown; | |
9975 | ||
9976 | default: | |
9977 | goto unknown; | |
9978 | } | |
9979 | ||
9980 | default: | |
9981 | goto unknown; | |
9982 | } | |
9983 | } | |
9984 | ||
9985 | goto unknown; | |
9986 | ||
9987 | case 'o': | |
9988 | if (name[2] == 'c' && | |
9989 | name[3] == 'k' && | |
9990 | name[4] == 'e' && | |
9991 | name[5] == 't' && | |
9992 | name[6] == 'p' && | |
9993 | name[7] == 'a' && | |
9994 | name[8] == 'i' && | |
9995 | name[9] == 'r') | |
9996 | { /* socketpair */ | |
9997 | return -KEY_socketpair; | |
9998 | } | |
9999 | ||
10000 | goto unknown; | |
10001 | ||
10002 | default: | |
10003 | goto unknown; | |
10004 | } | |
10005 | ||
10006 | default: | |
10007 | goto unknown; | |
e2e1dd5a | 10008 | } |
4c3bbe0f MHM |
10009 | |
10010 | case 11: /* 8 tokens of length 11 */ | |
10011 | switch (name[0]) | |
10012 | { | |
10013 | case '_': | |
10014 | if (name[1] == '_' && | |
10015 | name[2] == 'P' && | |
10016 | name[3] == 'A' && | |
10017 | name[4] == 'C' && | |
10018 | name[5] == 'K' && | |
10019 | name[6] == 'A' && | |
10020 | name[7] == 'G' && | |
10021 | name[8] == 'E' && | |
10022 | name[9] == '_' && | |
10023 | name[10] == '_') | |
10024 | { /* __PACKAGE__ */ | |
10025 | return -KEY___PACKAGE__; | |
10026 | } | |
10027 | ||
10028 | goto unknown; | |
10029 | ||
10030 | case 'e': | |
10031 | if (name[1] == 'n' && | |
10032 | name[2] == 'd' && | |
10033 | name[3] == 'p' && | |
10034 | name[4] == 'r' && | |
10035 | name[5] == 'o' && | |
10036 | name[6] == 't' && | |
10037 | name[7] == 'o' && | |
10038 | name[8] == 'e' && | |
10039 | name[9] == 'n' && | |
10040 | name[10] == 't') | |
10041 | { /* endprotoent */ | |
10042 | return -KEY_endprotoent; | |
10043 | } | |
10044 | ||
10045 | goto unknown; | |
10046 | ||
10047 | case 'g': | |
10048 | if (name[1] == 'e' && | |
10049 | name[2] == 't') | |
10050 | { | |
10051 | switch (name[3]) | |
10052 | { | |
10053 | case 'p': | |
10054 | switch (name[4]) | |
10055 | { | |
10056 | case 'e': | |
10057 | if (name[5] == 'e' && | |
10058 | name[6] == 'r' && | |
10059 | name[7] == 'n' && | |
10060 | name[8] == 'a' && | |
10061 | name[9] == 'm' && | |
10062 | name[10] == 'e') | |
10063 | { /* getpeername */ | |
10064 | return -KEY_getpeername; | |
10065 | } | |
10066 | ||
10067 | goto unknown; | |
10068 | ||
10069 | case 'r': | |
10070 | switch (name[5]) | |
10071 | { | |
10072 | case 'i': | |
10073 | if (name[6] == 'o' && | |
10074 | name[7] == 'r' && | |
10075 | name[8] == 'i' && | |
10076 | name[9] == 't' && | |
10077 | name[10] == 'y') | |
10078 | { /* getpriority */ | |
10079 | return -KEY_getpriority; | |
10080 | } | |
10081 | ||
10082 | goto unknown; | |
10083 | ||
10084 | case 'o': | |
10085 | if (name[6] == 't' && | |
10086 | name[7] == 'o' && | |
10087 | name[8] == 'e' && | |
10088 | name[9] == 'n' && | |
10089 | name[10] == 't') | |
10090 | { /* getprotoent */ | |
10091 | return -KEY_getprotoent; | |
10092 | } | |
10093 | ||
10094 | goto unknown; | |
10095 | ||
10096 | default: | |
10097 | goto unknown; | |
10098 | } | |
10099 | ||
10100 | default: | |
10101 | goto unknown; | |
10102 | } | |
10103 | ||
10104 | case 's': | |
10105 | if (name[4] == 'o' && | |
10106 | name[5] == 'c' && | |
10107 | name[6] == 'k' && | |
10108 | name[7] == 'n' && | |
10109 | name[8] == 'a' && | |
10110 | name[9] == 'm' && | |
10111 | name[10] == 'e') | |
10112 | { /* getsockname */ | |
10113 | return -KEY_getsockname; | |
10114 | } | |
10115 | ||
10116 | goto unknown; | |
10117 | ||
10118 | default: | |
10119 | goto unknown; | |
10120 | } | |
10121 | } | |
10122 | ||
10123 | goto unknown; | |
10124 | ||
10125 | case 's': | |
10126 | if (name[1] == 'e' && | |
10127 | name[2] == 't' && | |
10128 | name[3] == 'p' && | |
10129 | name[4] == 'r') | |
10130 | { | |
10131 | switch (name[5]) | |
10132 | { | |
10133 | case 'i': | |
10134 | if (name[6] == 'o' && | |
10135 | name[7] == 'r' && | |
10136 | name[8] == 'i' && | |
10137 | name[9] == 't' && | |
10138 | name[10] == 'y') | |
10139 | { /* setpriority */ | |
10140 | return -KEY_setpriority; | |
10141 | } | |
10142 | ||
10143 | goto unknown; | |
10144 | ||
10145 | case 'o': | |
10146 | if (name[6] == 't' && | |
10147 | name[7] == 'o' && | |
10148 | name[8] == 'e' && | |
10149 | name[9] == 'n' && | |
10150 | name[10] == 't') | |
10151 | { /* setprotoent */ | |
10152 | return -KEY_setprotoent; | |
10153 | } | |
10154 | ||
10155 | goto unknown; | |
10156 | ||
10157 | default: | |
10158 | goto unknown; | |
10159 | } | |
10160 | } | |
10161 | ||
10162 | goto unknown; | |
10163 | ||
10164 | default: | |
10165 | goto unknown; | |
e2e1dd5a | 10166 | } |
4c3bbe0f MHM |
10167 | |
10168 | case 12: /* 2 tokens of length 12 */ | |
10169 | if (name[0] == 'g' && | |
10170 | name[1] == 'e' && | |
10171 | name[2] == 't' && | |
10172 | name[3] == 'n' && | |
10173 | name[4] == 'e' && | |
10174 | name[5] == 't' && | |
10175 | name[6] == 'b' && | |
10176 | name[7] == 'y') | |
10177 | { | |
10178 | switch (name[8]) | |
10179 | { | |
10180 | case 'a': | |
10181 | if (name[9] == 'd' && | |
10182 | name[10] == 'd' && | |
10183 | name[11] == 'r') | |
10184 | { /* getnetbyaddr */ | |
10185 | return -KEY_getnetbyaddr; | |
10186 | } | |
10187 | ||
10188 | goto unknown; | |
10189 | ||
10190 | case 'n': | |
10191 | if (name[9] == 'a' && | |
10192 | name[10] == 'm' && | |
10193 | name[11] == 'e') | |
10194 | { /* getnetbyname */ | |
10195 | return -KEY_getnetbyname; | |
10196 | } | |
10197 | ||
10198 | goto unknown; | |
10199 | ||
10200 | default: | |
10201 | goto unknown; | |
10202 | } | |
e2e1dd5a | 10203 | } |
4c3bbe0f MHM |
10204 | |
10205 | goto unknown; | |
10206 | ||
10207 | case 13: /* 4 tokens of length 13 */ | |
10208 | if (name[0] == 'g' && | |
10209 | name[1] == 'e' && | |
10210 | name[2] == 't') | |
10211 | { | |
10212 | switch (name[3]) | |
10213 | { | |
10214 | case 'h': | |
10215 | if (name[4] == 'o' && | |
10216 | name[5] == 's' && | |
10217 | name[6] == 't' && | |
10218 | name[7] == 'b' && | |
10219 | name[8] == 'y') | |
10220 | { | |
10221 | switch (name[9]) | |
10222 | { | |
10223 | case 'a': | |
10224 | if (name[10] == 'd' && | |
10225 | name[11] == 'd' && | |
10226 | name[12] == 'r') | |
10227 | { /* gethostbyaddr */ | |
10228 | return -KEY_gethostbyaddr; | |
10229 | } | |
10230 | ||
10231 | goto unknown; | |
10232 | ||
10233 | case 'n': | |
10234 | if (name[10] == 'a' && | |
10235 | name[11] == 'm' && | |
10236 | name[12] == 'e') | |
10237 | { /* gethostbyname */ | |
10238 | return -KEY_gethostbyname; | |
10239 | } | |
10240 | ||
10241 | goto unknown; | |
10242 | ||
10243 | default: | |
10244 | goto unknown; | |
10245 | } | |
10246 | } | |
10247 | ||
10248 | goto unknown; | |
10249 | ||
10250 | case 's': | |
10251 | if (name[4] == 'e' && | |
10252 | name[5] == 'r' && | |
10253 | name[6] == 'v' && | |
10254 | name[7] == 'b' && | |
10255 | name[8] == 'y') | |
10256 | { | |
10257 | switch (name[9]) | |
10258 | { | |
10259 | case 'n': | |
10260 | if (name[10] == 'a' && | |
10261 | name[11] == 'm' && | |
10262 | name[12] == 'e') | |
10263 | { /* getservbyname */ | |
10264 | return -KEY_getservbyname; | |
10265 | } | |
10266 | ||
10267 | goto unknown; | |
10268 | ||
10269 | case 'p': | |
10270 | if (name[10] == 'o' && | |
10271 | name[11] == 'r' && | |
10272 | name[12] == 't') | |
10273 | { /* getservbyport */ | |
10274 | return -KEY_getservbyport; | |
10275 | } | |
10276 | ||
10277 | goto unknown; | |
10278 | ||
10279 | default: | |
10280 | goto unknown; | |
10281 | } | |
10282 | } | |
10283 | ||
10284 | goto unknown; | |
10285 | ||
10286 | default: | |
10287 | goto unknown; | |
10288 | } | |
e2e1dd5a | 10289 | } |
4c3bbe0f MHM |
10290 | |
10291 | goto unknown; | |
10292 | ||
10293 | case 14: /* 1 tokens of length 14 */ | |
10294 | if (name[0] == 'g' && | |
10295 | name[1] == 'e' && | |
10296 | name[2] == 't' && | |
10297 | name[3] == 'p' && | |
10298 | name[4] == 'r' && | |
10299 | name[5] == 'o' && | |
10300 | name[6] == 't' && | |
10301 | name[7] == 'o' && | |
10302 | name[8] == 'b' && | |
10303 | name[9] == 'y' && | |
10304 | name[10] == 'n' && | |
10305 | name[11] == 'a' && | |
10306 | name[12] == 'm' && | |
10307 | name[13] == 'e') | |
10308 | { /* getprotobyname */ | |
10309 | return -KEY_getprotobyname; | |
10310 | } | |
10311 | ||
10312 | goto unknown; | |
10313 | ||
10314 | case 16: /* 1 tokens of length 16 */ | |
10315 | if (name[0] == 'g' && | |
10316 | name[1] == 'e' && | |
10317 | name[2] == 't' && | |
10318 | name[3] == 'p' && | |
10319 | name[4] == 'r' && | |
10320 | name[5] == 'o' && | |
10321 | name[6] == 't' && | |
10322 | name[7] == 'o' && | |
10323 | name[8] == 'b' && | |
10324 | name[9] == 'y' && | |
10325 | name[10] == 'n' && | |
10326 | name[11] == 'u' && | |
10327 | name[12] == 'm' && | |
10328 | name[13] == 'b' && | |
10329 | name[14] == 'e' && | |
10330 | name[15] == 'r') | |
10331 | { /* getprotobynumber */ | |
10332 | return -KEY_getprotobynumber; | |
10333 | } | |
10334 | ||
10335 | goto unknown; | |
10336 | ||
10337 | default: | |
10338 | goto unknown; | |
e2e1dd5a | 10339 | } |
4c3bbe0f MHM |
10340 | |
10341 | unknown: | |
e2e1dd5a | 10342 | return 0; |
a687059c LW |
10343 | } |
10344 | ||
76e3520e | 10345 | STATIC void |
c94115d8 | 10346 | S_checkcomma(pTHX_ const char *s, const char *name, const char *what) |
a687059c | 10347 | { |
97aff369 | 10348 | dVAR; |
2f3197b3 | 10349 | |
d008e5eb | 10350 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
10351 | if (ckWARN(WARN_SYNTAX)) { |
10352 | int level = 1; | |
26ff0806 | 10353 | const char *w; |
d008e5eb GS |
10354 | for (w = s+2; *w && level; w++) { |
10355 | if (*w == '(') | |
10356 | ++level; | |
10357 | else if (*w == ')') | |
10358 | --level; | |
10359 | } | |
888fea98 NC |
10360 | while (isSPACE(*w)) |
10361 | ++w; | |
d008e5eb | 10362 | if (!*w || !strchr(";|})]oaiuw!=", *w)) /* an advisory hack only... */ |
9014280d | 10363 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 10364 | "%s (...) interpreted as function",name); |
d008e5eb | 10365 | } |
2f3197b3 | 10366 | } |
3280af22 | 10367 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 10368 | s++; |
a687059c LW |
10369 | if (*s == '(') |
10370 | s++; | |
3280af22 | 10371 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10372 | s++; |
7e2040f0 | 10373 | if (isIDFIRST_lazy_if(s,UTF)) { |
26ff0806 | 10374 | const char * const w = s++; |
7e2040f0 | 10375 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 10376 | s++; |
3280af22 | 10377 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10378 | s++; |
e929a76b | 10379 | if (*s == ',') { |
c94115d8 | 10380 | GV* gv; |
5458a98a | 10381 | if (keyword(w, s - w, 0)) |
e929a76b | 10382 | return; |
c94115d8 NC |
10383 | |
10384 | gv = gv_fetchpvn_flags(w, s - w, 0, SVt_PVCV); | |
10385 | if (gv && GvCVu(gv)) | |
abbb3198 | 10386 | return; |
cea2e8a9 | 10387 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
10388 | } |
10389 | } | |
10390 | } | |
10391 | ||
423cee85 JH |
10392 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
10393 | Best used as sv=new_constant(..., sv, ...). | |
10394 | If s, pv are NULL, calls subroutine with one argument, | |
10395 | and type is used with error messages only. */ | |
10396 | ||
b3ac6de7 | 10397 | STATIC SV * |
7fc63493 | 10398 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, SV *sv, SV *pv, |
9b0e499b | 10399 | const char *type) |
b3ac6de7 | 10400 | { |
27da23d5 | 10401 | dVAR; dSP; |
890ce7af | 10402 | HV * const table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 10403 | SV *res; |
b3ac6de7 IZ |
10404 | SV **cvp; |
10405 | SV *cv, *typesv; | |
89e33a05 | 10406 | const char *why1 = "", *why2 = "", *why3 = ""; |
4e553d73 | 10407 | |
f0af216f | 10408 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
10409 | SV *msg; |
10410 | ||
10edeb5d JH |
10411 | why2 = (const char *) |
10412 | (strEQ(key,"charnames") | |
10413 | ? "(possibly a missing \"use charnames ...\")" | |
10414 | : ""); | |
4e553d73 | 10415 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
10416 | (type ? type: "undef"), why2); |
10417 | ||
10418 | /* This is convoluted and evil ("goto considered harmful") | |
10419 | * but I do not understand the intricacies of all the different | |
10420 | * failure modes of %^H in here. The goal here is to make | |
10421 | * the most probable error message user-friendly. --jhi */ | |
10422 | ||
10423 | goto msgdone; | |
10424 | ||
423cee85 | 10425 | report: |
4e553d73 | 10426 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 10427 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 10428 | msgdone: |
95a20fc0 | 10429 | yyerror(SvPVX_const(msg)); |
423cee85 JH |
10430 | SvREFCNT_dec(msg); |
10431 | return sv; | |
10432 | } | |
b3ac6de7 IZ |
10433 | cvp = hv_fetch(table, key, strlen(key), FALSE); |
10434 | if (!cvp || !SvOK(*cvp)) { | |
423cee85 JH |
10435 | why1 = "$^H{"; |
10436 | why2 = key; | |
f0af216f | 10437 | why3 = "} is not defined"; |
423cee85 | 10438 | goto report; |
b3ac6de7 IZ |
10439 | } |
10440 | sv_2mortal(sv); /* Parent created it permanently */ | |
10441 | cv = *cvp; | |
423cee85 JH |
10442 | if (!pv && s) |
10443 | pv = sv_2mortal(newSVpvn(s, len)); | |
10444 | if (type && pv) | |
10445 | typesv = sv_2mortal(newSVpv(type, 0)); | |
b3ac6de7 | 10446 | else |
423cee85 | 10447 | typesv = &PL_sv_undef; |
4e553d73 | 10448 | |
e788e7d3 | 10449 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
10450 | ENTER ; |
10451 | SAVETMPS; | |
4e553d73 | 10452 | |
423cee85 | 10453 | PUSHMARK(SP) ; |
a5845cb7 | 10454 | EXTEND(sp, 3); |
423cee85 JH |
10455 | if (pv) |
10456 | PUSHs(pv); | |
b3ac6de7 | 10457 | PUSHs(sv); |
423cee85 JH |
10458 | if (pv) |
10459 | PUSHs(typesv); | |
b3ac6de7 | 10460 | PUTBACK; |
423cee85 | 10461 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 10462 | |
423cee85 | 10463 | SPAGAIN ; |
4e553d73 | 10464 | |
423cee85 | 10465 | /* Check the eval first */ |
9b0e499b | 10466 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
396482e1 | 10467 | sv_catpvs(ERRSV, "Propagated"); |
8b6b16e7 | 10468 | yyerror(SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */ |
e1f15930 | 10469 | (void)POPs; |
b37c2d43 | 10470 | res = SvREFCNT_inc_simple(sv); |
423cee85 JH |
10471 | } |
10472 | else { | |
10473 | res = POPs; | |
b37c2d43 | 10474 | SvREFCNT_inc_simple_void(res); |
423cee85 | 10475 | } |
4e553d73 | 10476 | |
423cee85 JH |
10477 | PUTBACK ; |
10478 | FREETMPS ; | |
10479 | LEAVE ; | |
b3ac6de7 | 10480 | POPSTACK; |
4e553d73 | 10481 | |
b3ac6de7 | 10482 | if (!SvOK(res)) { |
423cee85 JH |
10483 | why1 = "Call to &{$^H{"; |
10484 | why2 = key; | |
f0af216f | 10485 | why3 = "}} did not return a defined value"; |
423cee85 JH |
10486 | sv = res; |
10487 | goto report; | |
9b0e499b | 10488 | } |
423cee85 | 10489 | |
9b0e499b | 10490 | return res; |
b3ac6de7 | 10491 | } |
4e553d73 | 10492 | |
d0a148a6 NC |
10493 | /* Returns a NUL terminated string, with the length of the string written to |
10494 | *slp | |
10495 | */ | |
76e3520e | 10496 | STATIC char * |
cea2e8a9 | 10497 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 | 10498 | { |
97aff369 | 10499 | dVAR; |
463ee0b2 | 10500 | register char *d = dest; |
890ce7af | 10501 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
463ee0b2 | 10502 | for (;;) { |
8903cb82 | 10503 | if (d >= e) |
cea2e8a9 | 10504 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10505 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10506 | *d++ = *s++; |
c35e046a | 10507 | else if (allow_package && (*s == '\'') && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10508 | *d++ = ':'; |
10509 | *d++ = ':'; | |
10510 | s++; | |
10511 | } | |
c35e046a | 10512 | else if (allow_package && (s[0] == ':') && (s[1] == ':') && (s[2] != '$')) { |
463ee0b2 LW |
10513 | *d++ = *s++; |
10514 | *d++ = *s++; | |
10515 | } | |
fd400ab9 | 10516 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10517 | char *t = s + UTF8SKIP(s); |
c35e046a | 10518 | size_t len; |
fd400ab9 | 10519 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 | 10520 | t += UTF8SKIP(t); |
c35e046a AL |
10521 | len = t - s; |
10522 | if (d + len > e) | |
cea2e8a9 | 10523 | Perl_croak(aTHX_ ident_too_long); |
c35e046a AL |
10524 | Copy(s, d, len, char); |
10525 | d += len; | |
a0ed51b3 LW |
10526 | s = t; |
10527 | } | |
463ee0b2 LW |
10528 | else { |
10529 | *d = '\0'; | |
10530 | *slp = d - dest; | |
10531 | return s; | |
e929a76b | 10532 | } |
378cc40b LW |
10533 | } |
10534 | } | |
10535 | ||
76e3520e | 10536 | STATIC char * |
f54cb97a | 10537 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b | 10538 | { |
97aff369 | 10539 | dVAR; |
6136c704 | 10540 | char *bracket = NULL; |
748a9306 | 10541 | char funny = *s++; |
6136c704 AL |
10542 | register char *d = dest; |
10543 | register char * const e = d + destlen + 3; /* two-character token, ending NUL */ | |
378cc40b | 10544 | |
a0d0e21e | 10545 | if (isSPACE(*s)) |
29595ff2 | 10546 | s = PEEKSPACE(s); |
de3bb511 | 10547 | if (isDIGIT(*s)) { |
8903cb82 | 10548 | while (isDIGIT(*s)) { |
10549 | if (d >= e) | |
cea2e8a9 | 10550 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 10551 | *d++ = *s++; |
8903cb82 | 10552 | } |
378cc40b LW |
10553 | } |
10554 | else { | |
463ee0b2 | 10555 | for (;;) { |
8903cb82 | 10556 | if (d >= e) |
cea2e8a9 | 10557 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10558 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10559 | *d++ = *s++; |
7e2040f0 | 10560 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10561 | *d++ = ':'; |
10562 | *d++ = ':'; | |
10563 | s++; | |
10564 | } | |
a0d0e21e | 10565 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
10566 | *d++ = *s++; |
10567 | *d++ = *s++; | |
10568 | } | |
fd400ab9 | 10569 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10570 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 10571 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
10572 | t += UTF8SKIP(t); |
10573 | if (d + (t - s) > e) | |
cea2e8a9 | 10574 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
10575 | Copy(s, d, t - s, char); |
10576 | d += t - s; | |
10577 | s = t; | |
10578 | } | |
463ee0b2 LW |
10579 | else |
10580 | break; | |
10581 | } | |
378cc40b LW |
10582 | } |
10583 | *d = '\0'; | |
10584 | d = dest; | |
79072805 | 10585 | if (*d) { |
3280af22 NIS |
10586 | if (PL_lex_state != LEX_NORMAL) |
10587 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 10588 | return s; |
378cc40b | 10589 | } |
748a9306 | 10590 | if (*s == '$' && s[1] && |
3792a11b | 10591 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 10592 | { |
4810e5ec | 10593 | return s; |
5cd24f17 | 10594 | } |
79072805 LW |
10595 | if (*s == '{') { |
10596 | bracket = s; | |
10597 | s++; | |
10598 | } | |
10599 | else if (ck_uni) | |
10600 | check_uni(); | |
93a17b20 | 10601 | if (s < send) |
79072805 LW |
10602 | *d = *s++; |
10603 | d[1] = '\0'; | |
2b92dfce | 10604 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 10605 | *d = toCTRL(*s); |
10606 | s++; | |
de3bb511 | 10607 | } |
79072805 | 10608 | if (bracket) { |
748a9306 | 10609 | if (isSPACE(s[-1])) { |
fa83b5b6 | 10610 | while (s < send) { |
f54cb97a | 10611 | const char ch = *s++; |
bf4acbe4 | 10612 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 10613 | *d = ch; |
10614 | break; | |
10615 | } | |
10616 | } | |
748a9306 | 10617 | } |
7e2040f0 | 10618 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 10619 | d++; |
a0ed51b3 | 10620 | if (UTF) { |
6136c704 AL |
10621 | char *end = s; |
10622 | while ((end < send && isALNUM_lazy_if(end,UTF)) || *end == ':') { | |
10623 | end += UTF8SKIP(end); | |
10624 | while (end < send && UTF8_IS_CONTINUED(*end) && is_utf8_mark((U8*)end)) | |
10625 | end += UTF8SKIP(end); | |
a0ed51b3 | 10626 | } |
6136c704 AL |
10627 | Copy(s, d, end - s, char); |
10628 | d += end - s; | |
10629 | s = end; | |
a0ed51b3 LW |
10630 | } |
10631 | else { | |
2b92dfce | 10632 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 10633 | *d++ = *s++; |
2b92dfce | 10634 | if (d >= e) |
cea2e8a9 | 10635 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 10636 | } |
79072805 | 10637 | *d = '\0'; |
c35e046a AL |
10638 | while (s < send && SPACE_OR_TAB(*s)) |
10639 | s++; | |
ff68c719 | 10640 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
5458a98a | 10641 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest, 0)) { |
10edeb5d JH |
10642 | const char * const brack = |
10643 | (const char *) | |
10644 | ((*s == '[') ? "[...]" : "{...}"); | |
9014280d | 10645 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 10646 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
10647 | funny, dest, brack, funny, dest, brack); |
10648 | } | |
79072805 | 10649 | bracket++; |
a0be28da | 10650 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
10651 | return s; |
10652 | } | |
4e553d73 NIS |
10653 | } |
10654 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
10655 | * 1999-02-27 mjd-perl-patch@plover.com */ |
10656 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
10657 | && isALNUM(*s)) | |
10658 | { | |
10659 | d++; | |
10660 | while (isALNUM(*s) && d < e) { | |
10661 | *d++ = *s++; | |
10662 | } | |
10663 | if (d >= e) | |
cea2e8a9 | 10664 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 10665 | *d = '\0'; |
79072805 LW |
10666 | } |
10667 | if (*s == '}') { | |
10668 | s++; | |
7df0d042 | 10669 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 10670 | PL_lex_state = LEX_INTERPEND; |
7df0d042 AE |
10671 | PL_expect = XREF; |
10672 | } | |
d008e5eb | 10673 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 10674 | if (ckWARN(WARN_AMBIGUOUS) && |
5458a98a | 10675 | (keyword(dest, d - dest, 0) || get_cv(dest, FALSE))) |
d008e5eb | 10676 | { |
c35e046a AL |
10677 | if (funny == '#') |
10678 | funny = '@'; | |
9014280d | 10679 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
10680 | "Ambiguous use of %c{%s} resolved to %c%s", |
10681 | funny, dest, funny, dest); | |
10682 | } | |
10683 | } | |
79072805 LW |
10684 | } |
10685 | else { | |
10686 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 10687 | *dest = '\0'; |
79072805 LW |
10688 | } |
10689 | } | |
3280af22 NIS |
10690 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
10691 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
10692 | return s; |
10693 | } | |
10694 | ||
cea2e8a9 | 10695 | void |
2b36a5a0 | 10696 | Perl_pmflag(pTHX_ U32* pmfl, int ch) |
a0d0e21e | 10697 | { |
96a5add6 | 10698 | PERL_UNUSED_CONTEXT; |
bbce6d69 | 10699 | if (ch == 'i') |
a0d0e21e | 10700 | *pmfl |= PMf_FOLD; |
a0d0e21e LW |
10701 | else if (ch == 'g') |
10702 | *pmfl |= PMf_GLOBAL; | |
c90c0ff4 | 10703 | else if (ch == 'c') |
10704 | *pmfl |= PMf_CONTINUE; | |
a0d0e21e LW |
10705 | else if (ch == 'o') |
10706 | *pmfl |= PMf_KEEP; | |
10707 | else if (ch == 'm') | |
10708 | *pmfl |= PMf_MULTILINE; | |
10709 | else if (ch == 's') | |
10710 | *pmfl |= PMf_SINGLELINE; | |
10711 | else if (ch == 'x') | |
10712 | *pmfl |= PMf_EXTENDED; | |
10713 | } | |
378cc40b | 10714 | |
76e3520e | 10715 | STATIC char * |
cea2e8a9 | 10716 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 10717 | { |
97aff369 | 10718 | dVAR; |
79072805 | 10719 | PMOP *pm; |
5db06880 | 10720 | char *s = scan_str(start,!!PL_madskills,FALSE); |
10edeb5d JH |
10721 | const char * const valid_flags = |
10722 | (const char *)((type == OP_QR) ? "iomsx" : "iogcmsx"); | |
5db06880 NC |
10723 | #ifdef PERL_MAD |
10724 | char *modstart; | |
10725 | #endif | |
10726 | ||
378cc40b | 10727 | |
25c09cbf | 10728 | if (!s) { |
6136c704 | 10729 | const char * const delimiter = skipspace(start); |
10edeb5d JH |
10730 | Perl_croak(aTHX_ |
10731 | (const char *) | |
10732 | (*delimiter == '?' | |
10733 | ? "Search pattern not terminated or ternary operator parsed as search pattern" | |
10734 | : "Search pattern not terminated" )); | |
25c09cbf | 10735 | } |
bbce6d69 | 10736 | |
8782bef2 | 10737 | pm = (PMOP*)newPMOP(type, 0); |
3280af22 | 10738 | if (PL_multi_open == '?') |
79072805 | 10739 | pm->op_pmflags |= PMf_ONCE; |
5db06880 NC |
10740 | #ifdef PERL_MAD |
10741 | modstart = s; | |
10742 | #endif | |
6136c704 AL |
10743 | while (*s && strchr(valid_flags, *s)) |
10744 | pmflag(&pm->op_pmflags,*s++); | |
5db06880 NC |
10745 | #ifdef PERL_MAD |
10746 | if (PL_madskills && modstart != s) { | |
10747 | SV* tmptoken = newSVpvn(modstart, s - modstart); | |
10748 | append_madprops(newMADPROP('m', MAD_SV, tmptoken, 0), (OP*)pm, 0); | |
10749 | } | |
10750 | #endif | |
4ac733c9 | 10751 | /* issue a warning if /c is specified,but /g is not */ |
041457d9 DM |
10752 | if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL) |
10753 | && ckWARN(WARN_REGEXP)) | |
4ac733c9 | 10754 | { |
0bd48802 | 10755 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless without /g" ); |
4ac733c9 MJD |
10756 | } |
10757 | ||
4633a7c4 | 10758 | pm->op_pmpermflags = pm->op_pmflags; |
bbce6d69 | 10759 | |
3280af22 | 10760 | PL_lex_op = (OP*)pm; |
79072805 | 10761 | yylval.ival = OP_MATCH; |
378cc40b LW |
10762 | return s; |
10763 | } | |
10764 | ||
76e3520e | 10765 | STATIC char * |
cea2e8a9 | 10766 | S_scan_subst(pTHX_ char *start) |
79072805 | 10767 | { |
27da23d5 | 10768 | dVAR; |
a0d0e21e | 10769 | register char *s; |
79072805 | 10770 | register PMOP *pm; |
4fdae800 | 10771 | I32 first_start; |
79072805 | 10772 | I32 es = 0; |
5db06880 NC |
10773 | #ifdef PERL_MAD |
10774 | char *modstart; | |
10775 | #endif | |
79072805 | 10776 | |
79072805 LW |
10777 | yylval.ival = OP_NULL; |
10778 | ||
5db06880 | 10779 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 10780 | |
37fd879b | 10781 | if (!s) |
cea2e8a9 | 10782 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 10783 | |
3280af22 | 10784 | if (s[-1] == PL_multi_open) |
79072805 | 10785 | s--; |
5db06880 NC |
10786 | #ifdef PERL_MAD |
10787 | if (PL_madskills) { | |
cd81e915 NC |
10788 | CURMAD('q', PL_thisopen); |
10789 | CURMAD('_', PL_thiswhite); | |
10790 | CURMAD('E', PL_thisstuff); | |
10791 | CURMAD('Q', PL_thisclose); | |
10792 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
10793 | } |
10794 | #endif | |
79072805 | 10795 | |
3280af22 | 10796 | first_start = PL_multi_start; |
5db06880 | 10797 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 10798 | if (!s) { |
37fd879b | 10799 | if (PL_lex_stuff) { |
3280af22 | 10800 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 10801 | PL_lex_stuff = NULL; |
37fd879b | 10802 | } |
cea2e8a9 | 10803 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 10804 | } |
3280af22 | 10805 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 10806 | |
79072805 | 10807 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
5db06880 NC |
10808 | |
10809 | #ifdef PERL_MAD | |
10810 | if (PL_madskills) { | |
cd81e915 NC |
10811 | CURMAD('z', PL_thisopen); |
10812 | CURMAD('R', PL_thisstuff); | |
10813 | CURMAD('Z', PL_thisclose); | |
5db06880 NC |
10814 | } |
10815 | modstart = s; | |
10816 | #endif | |
10817 | ||
48c036b1 | 10818 | while (*s) { |
a687059c LW |
10819 | if (*s == 'e') { |
10820 | s++; | |
2f3197b3 | 10821 | es++; |
a687059c | 10822 | } |
b3eb6a9b | 10823 | else if (strchr("iogcmsx", *s)) |
a0d0e21e | 10824 | pmflag(&pm->op_pmflags,*s++); |
48c036b1 GS |
10825 | else |
10826 | break; | |
378cc40b | 10827 | } |
79072805 | 10828 | |
5db06880 NC |
10829 | #ifdef PERL_MAD |
10830 | if (PL_madskills) { | |
10831 | if (modstart != s) | |
10832 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
10833 | append_madprops(PL_thismad, (OP*)pm, 0); |
10834 | PL_thismad = 0; | |
5db06880 NC |
10835 | } |
10836 | #endif | |
0bd48802 AL |
10837 | if ((pm->op_pmflags & PMf_CONTINUE) && ckWARN(WARN_REGEXP)) { |
10838 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" ); | |
4ac733c9 MJD |
10839 | } |
10840 | ||
79072805 | 10841 | if (es) { |
6136c704 AL |
10842 | SV * const repl = newSVpvs(""); |
10843 | ||
0244c3a4 GS |
10844 | PL_sublex_info.super_bufptr = s; |
10845 | PL_sublex_info.super_bufend = PL_bufend; | |
10846 | PL_multi_end = 0; | |
79072805 | 10847 | pm->op_pmflags |= PMf_EVAL; |
463ee0b2 | 10848 | while (es-- > 0) |
10edeb5d | 10849 | sv_catpv(repl, (const char *)(es ? "eval " : "do ")); |
6f43d98f | 10850 | sv_catpvs(repl, "{"); |
3280af22 | 10851 | sv_catsv(repl, PL_lex_repl); |
9badc361 RGS |
10852 | if (strchr(SvPVX(PL_lex_repl), '#')) |
10853 | sv_catpvs(repl, "\n"); | |
10854 | sv_catpvs(repl, "}"); | |
25da4f38 | 10855 | SvEVALED_on(repl); |
3280af22 NIS |
10856 | SvREFCNT_dec(PL_lex_repl); |
10857 | PL_lex_repl = repl; | |
378cc40b | 10858 | } |
79072805 | 10859 | |
4633a7c4 | 10860 | pm->op_pmpermflags = pm->op_pmflags; |
3280af22 | 10861 | PL_lex_op = (OP*)pm; |
79072805 | 10862 | yylval.ival = OP_SUBST; |
378cc40b LW |
10863 | return s; |
10864 | } | |
10865 | ||
76e3520e | 10866 | STATIC char * |
cea2e8a9 | 10867 | S_scan_trans(pTHX_ char *start) |
378cc40b | 10868 | { |
97aff369 | 10869 | dVAR; |
a0d0e21e | 10870 | register char* s; |
11343788 | 10871 | OP *o; |
79072805 LW |
10872 | short *tbl; |
10873 | I32 squash; | |
a0ed51b3 | 10874 | I32 del; |
79072805 | 10875 | I32 complement; |
5db06880 NC |
10876 | #ifdef PERL_MAD |
10877 | char *modstart; | |
10878 | #endif | |
79072805 LW |
10879 | |
10880 | yylval.ival = OP_NULL; | |
10881 | ||
5db06880 | 10882 | s = scan_str(start,!!PL_madskills,FALSE); |
37fd879b | 10883 | if (!s) |
cea2e8a9 | 10884 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
5db06880 | 10885 | |
3280af22 | 10886 | if (s[-1] == PL_multi_open) |
2f3197b3 | 10887 | s--; |
5db06880 NC |
10888 | #ifdef PERL_MAD |
10889 | if (PL_madskills) { | |
cd81e915 NC |
10890 | CURMAD('q', PL_thisopen); |
10891 | CURMAD('_', PL_thiswhite); | |
10892 | CURMAD('E', PL_thisstuff); | |
10893 | CURMAD('Q', PL_thisclose); | |
10894 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
10895 | } |
10896 | #endif | |
2f3197b3 | 10897 | |
5db06880 | 10898 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 10899 | if (!s) { |
37fd879b | 10900 | if (PL_lex_stuff) { |
3280af22 | 10901 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 10902 | PL_lex_stuff = NULL; |
37fd879b | 10903 | } |
cea2e8a9 | 10904 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 10905 | } |
5db06880 | 10906 | if (PL_madskills) { |
cd81e915 NC |
10907 | CURMAD('z', PL_thisopen); |
10908 | CURMAD('R', PL_thisstuff); | |
10909 | CURMAD('Z', PL_thisclose); | |
5db06880 | 10910 | } |
79072805 | 10911 | |
a0ed51b3 | 10912 | complement = del = squash = 0; |
5db06880 NC |
10913 | #ifdef PERL_MAD |
10914 | modstart = s; | |
10915 | #endif | |
7a1e2023 NC |
10916 | while (1) { |
10917 | switch (*s) { | |
10918 | case 'c': | |
79072805 | 10919 | complement = OPpTRANS_COMPLEMENT; |
7a1e2023 NC |
10920 | break; |
10921 | case 'd': | |
a0ed51b3 | 10922 | del = OPpTRANS_DELETE; |
7a1e2023 NC |
10923 | break; |
10924 | case 's': | |
79072805 | 10925 | squash = OPpTRANS_SQUASH; |
7a1e2023 NC |
10926 | break; |
10927 | default: | |
10928 | goto no_more; | |
10929 | } | |
395c3793 LW |
10930 | s++; |
10931 | } | |
7a1e2023 | 10932 | no_more: |
8973db79 | 10933 | |
a02a5408 | 10934 | Newx(tbl, complement&&!del?258:256, short); |
8973db79 | 10935 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
59f00321 RGS |
10936 | o->op_private &= ~OPpTRANS_ALL; |
10937 | o->op_private |= del|squash|complement| | |
7948272d NIS |
10938 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| |
10939 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 10940 | |
3280af22 | 10941 | PL_lex_op = o; |
79072805 | 10942 | yylval.ival = OP_TRANS; |
5db06880 NC |
10943 | |
10944 | #ifdef PERL_MAD | |
10945 | if (PL_madskills) { | |
10946 | if (modstart != s) | |
10947 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
10948 | append_madprops(PL_thismad, o, 0); |
10949 | PL_thismad = 0; | |
5db06880 NC |
10950 | } |
10951 | #endif | |
10952 | ||
79072805 LW |
10953 | return s; |
10954 | } | |
10955 | ||
76e3520e | 10956 | STATIC char * |
cea2e8a9 | 10957 | S_scan_heredoc(pTHX_ register char *s) |
79072805 | 10958 | { |
97aff369 | 10959 | dVAR; |
79072805 LW |
10960 | SV *herewas; |
10961 | I32 op_type = OP_SCALAR; | |
10962 | I32 len; | |
10963 | SV *tmpstr; | |
10964 | char term; | |
73d840c0 | 10965 | const char *found_newline; |
79072805 | 10966 | register char *d; |
fc36a67e | 10967 | register char *e; |
4633a7c4 | 10968 | char *peek; |
f54cb97a | 10969 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
5db06880 NC |
10970 | #ifdef PERL_MAD |
10971 | I32 stuffstart = s - SvPVX(PL_linestr); | |
10972 | char *tstart; | |
10973 | ||
cd81e915 | 10974 | PL_realtokenstart = -1; |
5db06880 | 10975 | #endif |
79072805 LW |
10976 | |
10977 | s += 2; | |
3280af22 NIS |
10978 | d = PL_tokenbuf; |
10979 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 10980 | if (!outer) |
79072805 | 10981 | *d++ = '\n'; |
c35e046a AL |
10982 | peek = s; |
10983 | while (SPACE_OR_TAB(*peek)) | |
10984 | peek++; | |
3792a11b | 10985 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 10986 | s = peek; |
79072805 | 10987 | term = *s++; |
3280af22 | 10988 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 10989 | d += len; |
3280af22 | 10990 | if (s < PL_bufend) |
79072805 | 10991 | s++; |
79072805 LW |
10992 | } |
10993 | else { | |
10994 | if (*s == '\\') | |
10995 | s++, term = '\''; | |
10996 | else | |
10997 | term = '"'; | |
7e2040f0 | 10998 | if (!isALNUM_lazy_if(s,UTF)) |
12bcd1a6 | 10999 | deprecate_old("bare << to mean <<\"\""); |
7e2040f0 | 11000 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 11001 | if (d < e) |
11002 | *d++ = *s; | |
11003 | } | |
11004 | } | |
3280af22 | 11005 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 11006 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
11007 | *d++ = '\n'; |
11008 | *d = '\0'; | |
3280af22 | 11009 | len = d - PL_tokenbuf; |
5db06880 NC |
11010 | |
11011 | #ifdef PERL_MAD | |
11012 | if (PL_madskills) { | |
11013 | tstart = PL_tokenbuf + !outer; | |
cd81e915 | 11014 | PL_thisclose = newSVpvn(tstart, len - !outer); |
5db06880 | 11015 | tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 | 11016 | PL_thisopen = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11017 | stuffstart = s - SvPVX(PL_linestr); |
11018 | } | |
11019 | #endif | |
6a27c188 | 11020 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
11021 | d = strchr(s, '\r'); |
11022 | if (d) { | |
b464bac0 | 11023 | char * const olds = s; |
f63a84b2 | 11024 | s = d; |
3280af22 | 11025 | while (s < PL_bufend) { |
f63a84b2 LW |
11026 | if (*s == '\r') { |
11027 | *d++ = '\n'; | |
11028 | if (*++s == '\n') | |
11029 | s++; | |
11030 | } | |
11031 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
11032 | *d++ = *s++; | |
11033 | s++; | |
11034 | } | |
11035 | else | |
11036 | *d++ = *s++; | |
11037 | } | |
11038 | *d = '\0'; | |
3280af22 | 11039 | PL_bufend = d; |
95a20fc0 | 11040 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
11041 | s = olds; |
11042 | } | |
11043 | #endif | |
5db06880 NC |
11044 | #ifdef PERL_MAD |
11045 | found_newline = 0; | |
11046 | #endif | |
10edeb5d | 11047 | if ( outer || !(found_newline = (char*)memchr((void*)s, '\n', PL_bufend - s)) ) { |
73d840c0 AL |
11048 | herewas = newSVpvn(s,PL_bufend-s); |
11049 | } | |
11050 | else { | |
5db06880 NC |
11051 | #ifdef PERL_MAD |
11052 | herewas = newSVpvn(s-1,found_newline-s+1); | |
11053 | #else | |
73d840c0 AL |
11054 | s--; |
11055 | herewas = newSVpvn(s,found_newline-s); | |
5db06880 | 11056 | #endif |
73d840c0 | 11057 | } |
5db06880 NC |
11058 | #ifdef PERL_MAD |
11059 | if (PL_madskills) { | |
11060 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11061 | if (PL_thisstuff) |
11062 | sv_catpvn(PL_thisstuff, tstart, s - tstart); | |
5db06880 | 11063 | else |
cd81e915 | 11064 | PL_thisstuff = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11065 | } |
11066 | #endif | |
79072805 | 11067 | s += SvCUR(herewas); |
748a9306 | 11068 | |
5db06880 NC |
11069 | #ifdef PERL_MAD |
11070 | stuffstart = s - SvPVX(PL_linestr); | |
11071 | ||
11072 | if (found_newline) | |
11073 | s--; | |
11074 | #endif | |
11075 | ||
561b68a9 | 11076 | tmpstr = newSV(79); |
748a9306 LW |
11077 | sv_upgrade(tmpstr, SVt_PVIV); |
11078 | if (term == '\'') { | |
79072805 | 11079 | op_type = OP_CONST; |
45977657 | 11080 | SvIV_set(tmpstr, -1); |
748a9306 LW |
11081 | } |
11082 | else if (term == '`') { | |
79072805 | 11083 | op_type = OP_BACKTICK; |
45977657 | 11084 | SvIV_set(tmpstr, '\\'); |
748a9306 | 11085 | } |
79072805 LW |
11086 | |
11087 | CLINE; | |
57843af0 | 11088 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
11089 | PL_multi_open = PL_multi_close = '<'; |
11090 | term = *PL_tokenbuf; | |
0244c3a4 | 11091 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
6136c704 AL |
11092 | char * const bufptr = PL_sublex_info.super_bufptr; |
11093 | char * const bufend = PL_sublex_info.super_bufend; | |
b464bac0 | 11094 | char * const olds = s - SvCUR(herewas); |
0244c3a4 GS |
11095 | s = strchr(bufptr, '\n'); |
11096 | if (!s) | |
11097 | s = bufend; | |
11098 | d = s; | |
11099 | while (s < bufend && | |
11100 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
11101 | if (*s++ == '\n') | |
57843af0 | 11102 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
11103 | } |
11104 | if (s >= bufend) { | |
eb160463 | 11105 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
11106 | missingterm(PL_tokenbuf); |
11107 | } | |
11108 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
11109 | sv_setpvn(tmpstr,d+1,s-d); | |
11110 | s += len - 1; | |
11111 | sv_catpvn(herewas,s,bufend-s); | |
95a20fc0 | 11112 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
11113 | |
11114 | s = olds; | |
11115 | goto retval; | |
11116 | } | |
11117 | else if (!outer) { | |
79072805 | 11118 | d = s; |
3280af22 NIS |
11119 | while (s < PL_bufend && |
11120 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 11121 | if (*s++ == '\n') |
57843af0 | 11122 | CopLINE_inc(PL_curcop); |
79072805 | 11123 | } |
3280af22 | 11124 | if (s >= PL_bufend) { |
eb160463 | 11125 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11126 | missingterm(PL_tokenbuf); |
79072805 LW |
11127 | } |
11128 | sv_setpvn(tmpstr,d+1,s-d); | |
5db06880 NC |
11129 | #ifdef PERL_MAD |
11130 | if (PL_madskills) { | |
cd81e915 NC |
11131 | if (PL_thisstuff) |
11132 | sv_catpvn(PL_thisstuff, d + 1, s - d); | |
5db06880 | 11133 | else |
cd81e915 | 11134 | PL_thisstuff = newSVpvn(d + 1, s - d); |
5db06880 NC |
11135 | stuffstart = s - SvPVX(PL_linestr); |
11136 | } | |
11137 | #endif | |
79072805 | 11138 | s += len - 1; |
57843af0 | 11139 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 11140 | |
3280af22 NIS |
11141 | sv_catpvn(herewas,s,PL_bufend-s); |
11142 | sv_setsv(PL_linestr,herewas); | |
11143 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
11144 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11145 | PL_last_lop = PL_last_uni = NULL; |
79072805 LW |
11146 | } |
11147 | else | |
11148 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
3280af22 | 11149 | while (s >= PL_bufend) { /* multiple line string? */ |
5db06880 NC |
11150 | #ifdef PERL_MAD |
11151 | if (PL_madskills) { | |
11152 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11153 | if (PL_thisstuff) |
11154 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11155 | else |
cd81e915 | 11156 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11157 | } |
11158 | #endif | |
fd2d0953 | 11159 | if (!outer || |
3280af22 | 11160 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { |
eb160463 | 11161 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11162 | missingterm(PL_tokenbuf); |
79072805 | 11163 | } |
5db06880 NC |
11164 | #ifdef PERL_MAD |
11165 | stuffstart = s - SvPVX(PL_linestr); | |
11166 | #endif | |
57843af0 | 11167 | CopLINE_inc(PL_curcop); |
3280af22 | 11168 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 11169 | PL_last_lop = PL_last_uni = NULL; |
6a27c188 | 11170 | #ifndef PERL_STRICT_CR |
3280af22 | 11171 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
11172 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
11173 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 11174 | { |
3280af22 NIS |
11175 | PL_bufend[-2] = '\n'; |
11176 | PL_bufend--; | |
95a20fc0 | 11177 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 11178 | } |
3280af22 NIS |
11179 | else if (PL_bufend[-1] == '\r') |
11180 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11181 | } |
3280af22 NIS |
11182 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
11183 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11184 | #endif |
3280af22 | 11185 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
561b68a9 | 11186 | SV * const sv = newSV(0); |
79072805 | 11187 | |
93a17b20 | 11188 | sv_upgrade(sv, SVt_PVMG); |
3280af22 | 11189 | sv_setsv(sv,PL_linestr); |
0ac0412a | 11190 | (void)SvIOK_on(sv); |
45977657 | 11191 | SvIV_set(sv, 0); |
36c7798d | 11192 | av_store(CopFILEAVx(PL_curcop), (I32)CopLINE(PL_curcop),sv); |
79072805 | 11193 | } |
3280af22 | 11194 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
95a20fc0 | 11195 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
1de9afcd | 11196 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
11197 | sv_catsv(PL_linestr,herewas); |
11198 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
1de9afcd | 11199 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
11200 | } |
11201 | else { | |
3280af22 NIS |
11202 | s = PL_bufend; |
11203 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
11204 | } |
11205 | } | |
79072805 | 11206 | s++; |
0244c3a4 | 11207 | retval: |
57843af0 | 11208 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 11209 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
1da4ca5f | 11210 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 11211 | } |
8990e307 | 11212 | SvREFCNT_dec(herewas); |
2f31ce75 | 11213 | if (!IN_BYTES) { |
95a20fc0 | 11214 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
2f31ce75 JH |
11215 | SvUTF8_on(tmpstr); |
11216 | else if (PL_encoding) | |
11217 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
11218 | } | |
3280af22 | 11219 | PL_lex_stuff = tmpstr; |
79072805 LW |
11220 | yylval.ival = op_type; |
11221 | return s; | |
11222 | } | |
11223 | ||
02aa26ce NT |
11224 | /* scan_inputsymbol |
11225 | takes: current position in input buffer | |
11226 | returns: new position in input buffer | |
11227 | side-effects: yylval and lex_op are set. | |
11228 | ||
11229 | This code handles: | |
11230 | ||
11231 | <> read from ARGV | |
11232 | <FH> read from filehandle | |
11233 | <pkg::FH> read from package qualified filehandle | |
11234 | <pkg'FH> read from package qualified filehandle | |
11235 | <$fh> read from filehandle in $fh | |
11236 | <*.h> filename glob | |
11237 | ||
11238 | */ | |
11239 | ||
76e3520e | 11240 | STATIC char * |
cea2e8a9 | 11241 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 11242 | { |
97aff369 | 11243 | dVAR; |
02aa26ce | 11244 | register char *s = start; /* current position in buffer */ |
1b420867 | 11245 | char *end; |
79072805 LW |
11246 | I32 len; |
11247 | ||
6136c704 AL |
11248 | char *d = PL_tokenbuf; /* start of temp holding space */ |
11249 | const char * const e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
11250 | ||
1b420867 GS |
11251 | end = strchr(s, '\n'); |
11252 | if (!end) | |
11253 | end = PL_bufend; | |
11254 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
11255 | |
11256 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 11257 | or if it didn't end, or if we see a newline |
02aa26ce NT |
11258 | */ |
11259 | ||
bb7a0f54 | 11260 | if (len >= (I32)sizeof PL_tokenbuf) |
cea2e8a9 | 11261 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 11262 | if (s >= end) |
cea2e8a9 | 11263 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 11264 | |
fc36a67e | 11265 | s++; |
02aa26ce NT |
11266 | |
11267 | /* check for <$fh> | |
11268 | Remember, only scalar variables are interpreted as filehandles by | |
11269 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
11270 | treated as a glob() call. | |
11271 | This code makes use of the fact that except for the $ at the front, | |
11272 | a scalar variable and a filehandle look the same. | |
11273 | */ | |
4633a7c4 | 11274 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
11275 | |
11276 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 11277 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 11278 | d++; |
02aa26ce NT |
11279 | |
11280 | /* If we've tried to read what we allow filehandles to look like, and | |
11281 | there's still text left, then it must be a glob() and not a getline. | |
11282 | Use scan_str to pull out the stuff between the <> and treat it | |
11283 | as nothing more than a string. | |
11284 | */ | |
11285 | ||
3280af22 | 11286 | if (d - PL_tokenbuf != len) { |
79072805 LW |
11287 | yylval.ival = OP_GLOB; |
11288 | set_csh(); | |
5db06880 | 11289 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 11290 | if (!s) |
cea2e8a9 | 11291 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
11292 | return s; |
11293 | } | |
395c3793 | 11294 | else { |
9b3023bc | 11295 | bool readline_overriden = FALSE; |
6136c704 | 11296 | GV *gv_readline; |
9b3023bc | 11297 | GV **gvp; |
02aa26ce | 11298 | /* we're in a filehandle read situation */ |
3280af22 | 11299 | d = PL_tokenbuf; |
02aa26ce NT |
11300 | |
11301 | /* turn <> into <ARGV> */ | |
79072805 | 11302 | if (!len) |
689badd5 | 11303 | Copy("ARGV",d,5,char); |
02aa26ce | 11304 | |
9b3023bc | 11305 | /* Check whether readline() is overriden */ |
fafc274c | 11306 | gv_readline = gv_fetchpvs("readline", GV_NOTQUAL, SVt_PVCV); |
6136c704 | 11307 | if ((gv_readline |
ba979b31 | 11308 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) |
9b3023bc | 11309 | || |
017a3ce5 | 11310 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE)) |
9b3023bc | 11311 | && (gv_readline = *gvp) != (GV*)&PL_sv_undef |
ba979b31 | 11312 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
11313 | readline_overriden = TRUE; |
11314 | ||
02aa26ce NT |
11315 | /* if <$fh>, create the ops to turn the variable into a |
11316 | filehandle | |
11317 | */ | |
79072805 | 11318 | if (*d == '$') { |
02aa26ce NT |
11319 | /* try to find it in the pad for this block, otherwise find |
11320 | add symbol table ops | |
11321 | */ | |
bbd11bfc AL |
11322 | const PADOFFSET tmp = pad_findmy(d); |
11323 | if (tmp != NOT_IN_PAD) { | |
00b1698f | 11324 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
6136c704 AL |
11325 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
11326 | HEK * const stashname = HvNAME_HEK(stash); | |
11327 | SV * const sym = sv_2mortal(newSVhek(stashname)); | |
396482e1 | 11328 | sv_catpvs(sym, "::"); |
f558d5af JH |
11329 | sv_catpv(sym, d+1); |
11330 | d = SvPVX(sym); | |
11331 | goto intro_sym; | |
11332 | } | |
11333 | else { | |
6136c704 | 11334 | OP * const o = newOP(OP_PADSV, 0); |
f558d5af | 11335 | o->op_targ = tmp; |
9b3023bc RGS |
11336 | PL_lex_op = readline_overriden |
11337 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11338 | append_elem(OP_LIST, o, | |
11339 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
11340 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 11341 | } |
a0d0e21e LW |
11342 | } |
11343 | else { | |
f558d5af JH |
11344 | GV *gv; |
11345 | ++d; | |
11346 | intro_sym: | |
11347 | gv = gv_fetchpv(d, | |
11348 | (PL_in_eval | |
11349 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 11350 | : GV_ADDMULTI), |
f558d5af | 11351 | SVt_PV); |
9b3023bc RGS |
11352 | PL_lex_op = readline_overriden |
11353 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11354 | append_elem(OP_LIST, | |
11355 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
11356 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11357 | : (OP*)newUNOP(OP_READLINE, 0, | |
11358 | newUNOP(OP_RV2SV, 0, | |
11359 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 11360 | } |
7c6fadd6 RGS |
11361 | if (!readline_overriden) |
11362 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
f5284f61 | 11363 | /* we created the ops in PL_lex_op, so make yylval.ival a null op */ |
79072805 LW |
11364 | yylval.ival = OP_NULL; |
11365 | } | |
02aa26ce NT |
11366 | |
11367 | /* If it's none of the above, it must be a literal filehandle | |
11368 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 11369 | else { |
6136c704 | 11370 | GV * const gv = gv_fetchpv(d, GV_ADD, SVt_PVIO); |
9b3023bc RGS |
11371 | PL_lex_op = readline_overriden |
11372 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11373 | append_elem(OP_LIST, | |
11374 | newGVOP(OP_GV, 0, gv), | |
11375 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11376 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
79072805 LW |
11377 | yylval.ival = OP_NULL; |
11378 | } | |
11379 | } | |
02aa26ce | 11380 | |
79072805 LW |
11381 | return s; |
11382 | } | |
11383 | ||
02aa26ce NT |
11384 | |
11385 | /* scan_str | |
11386 | takes: start position in buffer | |
09bef843 SB |
11387 | keep_quoted preserve \ on the embedded delimiter(s) |
11388 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
11389 | returns: position to continue reading from buffer |
11390 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
11391 | updates the read buffer. | |
11392 | ||
11393 | This subroutine pulls a string out of the input. It is called for: | |
11394 | q single quotes q(literal text) | |
11395 | ' single quotes 'literal text' | |
11396 | qq double quotes qq(interpolate $here please) | |
11397 | " double quotes "interpolate $here please" | |
11398 | qx backticks qx(/bin/ls -l) | |
11399 | ` backticks `/bin/ls -l` | |
11400 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
11401 | m// regexp match m/this/ | |
11402 | s/// regexp substitute s/this/that/ | |
11403 | tr/// string transliterate tr/this/that/ | |
11404 | y/// string transliterate y/this/that/ | |
11405 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 11406 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
11407 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
11408 | ||
11409 | In most of these cases (all but <>, patterns and transliterate) | |
11410 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
11411 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
11412 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
11413 | calls scan_str(). | |
4e553d73 | 11414 | |
02aa26ce NT |
11415 | It skips whitespace before the string starts, and treats the first |
11416 | character as the delimiter. If the delimiter is one of ([{< then | |
11417 | the corresponding "close" character )]}> is used as the closing | |
11418 | delimiter. It allows quoting of delimiters, and if the string has | |
11419 | balanced delimiters ([{<>}]) it allows nesting. | |
11420 | ||
37fd879b HS |
11421 | On success, the SV with the resulting string is put into lex_stuff or, |
11422 | if that is already non-NULL, into lex_repl. The second case occurs only | |
11423 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
11424 | For convenience, the terminating delimiter character is stuffed into | |
11425 | SvIVX of the SV. | |
02aa26ce NT |
11426 | */ |
11427 | ||
76e3520e | 11428 | STATIC char * |
09bef843 | 11429 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 11430 | { |
97aff369 | 11431 | dVAR; |
02aa26ce | 11432 | SV *sv; /* scalar value: string */ |
d3fcec1f | 11433 | const char *tmps; /* temp string, used for delimiter matching */ |
02aa26ce NT |
11434 | register char *s = start; /* current position in the buffer */ |
11435 | register char term; /* terminating character */ | |
11436 | register char *to; /* current position in the sv's data */ | |
11437 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 11438 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
220e2d4e | 11439 | I32 termcode; /* terminating char. code */ |
89ebb4a3 | 11440 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
220e2d4e IH |
11441 | STRLEN termlen; /* length of terminating string */ |
11442 | char *last = NULL; /* last position for nesting bracket */ | |
5db06880 NC |
11443 | #ifdef PERL_MAD |
11444 | int stuffstart; | |
11445 | char *tstart; | |
11446 | #endif | |
02aa26ce NT |
11447 | |
11448 | /* skip space before the delimiter */ | |
29595ff2 NC |
11449 | if (isSPACE(*s)) { |
11450 | s = PEEKSPACE(s); | |
11451 | } | |
02aa26ce | 11452 | |
5db06880 | 11453 | #ifdef PERL_MAD |
cd81e915 NC |
11454 | if (PL_realtokenstart >= 0) { |
11455 | stuffstart = PL_realtokenstart; | |
11456 | PL_realtokenstart = -1; | |
5db06880 NC |
11457 | } |
11458 | else | |
11459 | stuffstart = start - SvPVX(PL_linestr); | |
11460 | #endif | |
02aa26ce | 11461 | /* mark where we are, in case we need to report errors */ |
79072805 | 11462 | CLINE; |
02aa26ce NT |
11463 | |
11464 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 11465 | term = *s; |
220e2d4e IH |
11466 | if (!UTF) { |
11467 | termcode = termstr[0] = term; | |
11468 | termlen = 1; | |
11469 | } | |
11470 | else { | |
f3b9ce0f | 11471 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
220e2d4e IH |
11472 | Copy(s, termstr, termlen, U8); |
11473 | if (!UTF8_IS_INVARIANT(term)) | |
11474 | has_utf8 = TRUE; | |
11475 | } | |
b1c7b182 | 11476 | |
02aa26ce | 11477 | /* mark where we are */ |
57843af0 | 11478 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 11479 | PL_multi_open = term; |
02aa26ce NT |
11480 | |
11481 | /* find corresponding closing delimiter */ | |
93a17b20 | 11482 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
220e2d4e IH |
11483 | termcode = termstr[0] = term = tmps[5]; |
11484 | ||
3280af22 | 11485 | PL_multi_close = term; |
79072805 | 11486 | |
561b68a9 SH |
11487 | /* create a new SV to hold the contents. 79 is the SV's initial length. |
11488 | What a random number. */ | |
11489 | sv = newSV(79); | |
ed6116ce | 11490 | sv_upgrade(sv, SVt_PVIV); |
45977657 | 11491 | SvIV_set(sv, termcode); |
a0d0e21e | 11492 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
11493 | |
11494 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 11495 | if (keep_delims) |
220e2d4e IH |
11496 | sv_catpvn(sv, s, termlen); |
11497 | s += termlen; | |
5db06880 NC |
11498 | #ifdef PERL_MAD |
11499 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11500 | if (!PL_thisopen && !keep_delims) { |
11501 | PL_thisopen = newSVpvn(tstart, s - tstart); | |
5db06880 NC |
11502 | stuffstart = s - SvPVX(PL_linestr); |
11503 | } | |
11504 | #endif | |
93a17b20 | 11505 | for (;;) { |
220e2d4e IH |
11506 | if (PL_encoding && !UTF) { |
11507 | bool cont = TRUE; | |
11508 | ||
11509 | while (cont) { | |
95a20fc0 | 11510 | int offset = s - SvPVX_const(PL_linestr); |
66a1b24b | 11511 | const bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f3b9ce0f | 11512 | &offset, (char*)termstr, termlen); |
6136c704 AL |
11513 | const char * const ns = SvPVX_const(PL_linestr) + offset; |
11514 | char * const svlast = SvEND(sv) - 1; | |
220e2d4e IH |
11515 | |
11516 | for (; s < ns; s++) { | |
11517 | if (*s == '\n' && !PL_rsfp) | |
11518 | CopLINE_inc(PL_curcop); | |
11519 | } | |
11520 | if (!found) | |
11521 | goto read_more_line; | |
11522 | else { | |
11523 | /* handle quoted delimiters */ | |
52327caf | 11524 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
f54cb97a | 11525 | const char *t; |
95a20fc0 | 11526 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
220e2d4e IH |
11527 | t--; |
11528 | if ((svlast-1 - t) % 2) { | |
11529 | if (!keep_quoted) { | |
11530 | *(svlast-1) = term; | |
11531 | *svlast = '\0'; | |
11532 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11533 | } | |
11534 | continue; | |
11535 | } | |
11536 | } | |
11537 | if (PL_multi_open == PL_multi_close) { | |
11538 | cont = FALSE; | |
11539 | } | |
11540 | else { | |
f54cb97a AL |
11541 | const char *t; |
11542 | char *w; | |
220e2d4e IH |
11543 | if (!last) |
11544 | last = SvPVX(sv); | |
f54cb97a | 11545 | for (t = w = last; t < svlast; w++, t++) { |
220e2d4e IH |
11546 | /* At here, all closes are "was quoted" one, |
11547 | so we don't check PL_multi_close. */ | |
11548 | if (*t == '\\') { | |
11549 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
11550 | t++; | |
11551 | else | |
11552 | *w++ = *t++; | |
11553 | } | |
11554 | else if (*t == PL_multi_open) | |
11555 | brackets++; | |
11556 | ||
11557 | *w = *t; | |
11558 | } | |
11559 | if (w < t) { | |
11560 | *w++ = term; | |
11561 | *w = '\0'; | |
95a20fc0 | 11562 | SvCUR_set(sv, w - SvPVX_const(sv)); |
220e2d4e IH |
11563 | } |
11564 | last = w; | |
11565 | if (--brackets <= 0) | |
11566 | cont = FALSE; | |
11567 | } | |
11568 | } | |
11569 | } | |
11570 | if (!keep_delims) { | |
11571 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11572 | *SvEND(sv) = '\0'; | |
11573 | } | |
11574 | break; | |
11575 | } | |
11576 | ||
02aa26ce | 11577 | /* extend sv if need be */ |
3280af22 | 11578 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 11579 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 11580 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 11581 | |
02aa26ce | 11582 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
11583 | if (PL_multi_open == PL_multi_close) { |
11584 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 11585 | /* embedded newlines increment the current line number */ |
3280af22 | 11586 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11587 | CopLINE_inc(PL_curcop); |
02aa26ce | 11588 | /* handle quoted delimiters */ |
3280af22 | 11589 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 11590 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 11591 | s++; |
02aa26ce | 11592 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
11593 | else |
11594 | *to++ = *s++; | |
11595 | } | |
02aa26ce NT |
11596 | /* terminate when run out of buffer (the for() condition), or |
11597 | have found the terminator */ | |
220e2d4e IH |
11598 | else if (*s == term) { |
11599 | if (termlen == 1) | |
11600 | break; | |
f3b9ce0f | 11601 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
220e2d4e IH |
11602 | break; |
11603 | } | |
63cd0674 | 11604 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11605 | has_utf8 = TRUE; |
93a17b20 LW |
11606 | *to = *s; |
11607 | } | |
11608 | } | |
02aa26ce NT |
11609 | |
11610 | /* if the terminator isn't the same as the start character (e.g., | |
11611 | matched brackets), we have to allow more in the quoting, and | |
11612 | be prepared for nested brackets. | |
11613 | */ | |
93a17b20 | 11614 | else { |
02aa26ce | 11615 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 11616 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 11617 | /* embedded newlines increment the line count */ |
3280af22 | 11618 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11619 | CopLINE_inc(PL_curcop); |
02aa26ce | 11620 | /* backslashes can escape the open or closing characters */ |
3280af22 | 11621 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
11622 | if (!keep_quoted && |
11623 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
11624 | s++; |
11625 | else | |
11626 | *to++ = *s++; | |
11627 | } | |
02aa26ce | 11628 | /* allow nested opens and closes */ |
3280af22 | 11629 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 11630 | break; |
3280af22 | 11631 | else if (*s == PL_multi_open) |
93a17b20 | 11632 | brackets++; |
63cd0674 | 11633 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11634 | has_utf8 = TRUE; |
93a17b20 LW |
11635 | *to = *s; |
11636 | } | |
11637 | } | |
02aa26ce | 11638 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 11639 | *to = '\0'; |
95a20fc0 | 11640 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 11641 | |
02aa26ce NT |
11642 | /* |
11643 | * this next chunk reads more into the buffer if we're not done yet | |
11644 | */ | |
11645 | ||
b1c7b182 GS |
11646 | if (s < PL_bufend) |
11647 | break; /* handle case where we are done yet :-) */ | |
79072805 | 11648 | |
6a27c188 | 11649 | #ifndef PERL_STRICT_CR |
95a20fc0 | 11650 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
11651 | if ((to[-2] == '\r' && to[-1] == '\n') || |
11652 | (to[-2] == '\n' && to[-1] == '\r')) | |
11653 | { | |
f63a84b2 LW |
11654 | to[-2] = '\n'; |
11655 | to--; | |
95a20fc0 | 11656 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
11657 | } |
11658 | else if (to[-1] == '\r') | |
11659 | to[-1] = '\n'; | |
11660 | } | |
95a20fc0 | 11661 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
11662 | to[-1] = '\n'; |
11663 | #endif | |
11664 | ||
220e2d4e | 11665 | read_more_line: |
02aa26ce NT |
11666 | /* if we're out of file, or a read fails, bail and reset the current |
11667 | line marker so we can report where the unterminated string began | |
11668 | */ | |
5db06880 NC |
11669 | #ifdef PERL_MAD |
11670 | if (PL_madskills) { | |
c35e046a | 11671 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 NC |
11672 | if (PL_thisstuff) |
11673 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11674 | else |
cd81e915 | 11675 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11676 | } |
11677 | #endif | |
3280af22 NIS |
11678 | if (!PL_rsfp || |
11679 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { | |
c07a80fd | 11680 | sv_free(sv); |
eb160463 | 11681 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
bd61b366 | 11682 | return NULL; |
79072805 | 11683 | } |
5db06880 NC |
11684 | #ifdef PERL_MAD |
11685 | stuffstart = 0; | |
11686 | #endif | |
02aa26ce | 11687 | /* we read a line, so increment our line counter */ |
57843af0 | 11688 | CopLINE_inc(PL_curcop); |
a0ed51b3 | 11689 | |
02aa26ce | 11690 | /* update debugger info */ |
3280af22 | 11691 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
5f66b61c | 11692 | SV * const line_sv = newSV(0); |
79072805 | 11693 | |
5f66b61c AL |
11694 | sv_upgrade(line_sv, SVt_PVMG); |
11695 | sv_setsv(line_sv,PL_linestr); | |
11696 | (void)SvIOK_on(line_sv); | |
11697 | SvIV_set(line_sv, 0); | |
11698 | av_store(CopFILEAVx(PL_curcop), (I32)CopLINE(PL_curcop), line_sv); | |
395c3793 | 11699 | } |
a0ed51b3 | 11700 | |
3280af22 NIS |
11701 | /* having changed the buffer, we must update PL_bufend */ |
11702 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11703 | PL_last_lop = PL_last_uni = NULL; |
378cc40b | 11704 | } |
4e553d73 | 11705 | |
02aa26ce NT |
11706 | /* at this point, we have successfully read the delimited string */ |
11707 | ||
220e2d4e | 11708 | if (!PL_encoding || UTF) { |
5db06880 NC |
11709 | #ifdef PERL_MAD |
11710 | if (PL_madskills) { | |
c35e046a AL |
11711 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
11712 | const int len = s - start; | |
cd81e915 | 11713 | if (PL_thisstuff) |
c35e046a | 11714 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11715 | else |
c35e046a | 11716 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11717 | if (!PL_thisclose && !keep_delims) |
11718 | PL_thisclose = newSVpvn(s,termlen); | |
5db06880 NC |
11719 | } |
11720 | #endif | |
11721 | ||
220e2d4e IH |
11722 | if (keep_delims) |
11723 | sv_catpvn(sv, s, termlen); | |
11724 | s += termlen; | |
11725 | } | |
5db06880 NC |
11726 | #ifdef PERL_MAD |
11727 | else { | |
11728 | if (PL_madskills) { | |
c35e046a AL |
11729 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
11730 | const int len = s - tstart - termlen; | |
cd81e915 | 11731 | if (PL_thisstuff) |
c35e046a | 11732 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11733 | else |
c35e046a | 11734 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11735 | if (!PL_thisclose && !keep_delims) |
11736 | PL_thisclose = newSVpvn(s - termlen,termlen); | |
5db06880 NC |
11737 | } |
11738 | } | |
11739 | #endif | |
220e2d4e | 11740 | if (has_utf8 || PL_encoding) |
b1c7b182 | 11741 | SvUTF8_on(sv); |
d0063567 | 11742 | |
57843af0 | 11743 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
11744 | |
11745 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
11746 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
11747 | SvLEN_set(sv, SvCUR(sv) + 1); | |
b7e9a5c2 | 11748 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 11749 | } |
02aa26ce NT |
11750 | |
11751 | /* decide whether this is the first or second quoted string we've read | |
11752 | for this op | |
11753 | */ | |
4e553d73 | 11754 | |
3280af22 NIS |
11755 | if (PL_lex_stuff) |
11756 | PL_lex_repl = sv; | |
79072805 | 11757 | else |
3280af22 | 11758 | PL_lex_stuff = sv; |
378cc40b LW |
11759 | return s; |
11760 | } | |
11761 | ||
02aa26ce NT |
11762 | /* |
11763 | scan_num | |
11764 | takes: pointer to position in buffer | |
11765 | returns: pointer to new position in buffer | |
11766 | side-effects: builds ops for the constant in yylval.op | |
11767 | ||
11768 | Read a number in any of the formats that Perl accepts: | |
11769 | ||
7fd134d9 JH |
11770 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
11771 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
11772 | 0b[01](_?[01])* |
11773 | 0[0-7](_?[0-7])* | |
11774 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 11775 | |
3280af22 | 11776 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
11777 | thing it reads. |
11778 | ||
11779 | If it reads a number without a decimal point or an exponent, it will | |
11780 | try converting the number to an integer and see if it can do so | |
11781 | without loss of precision. | |
11782 | */ | |
4e553d73 | 11783 | |
378cc40b | 11784 | char * |
bfed75c6 | 11785 | Perl_scan_num(pTHX_ const char *start, YYSTYPE* lvalp) |
378cc40b | 11786 | { |
97aff369 | 11787 | dVAR; |
bfed75c6 | 11788 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
11789 | register char *d; /* destination in temp buffer */ |
11790 | register char *e; /* end of temp buffer */ | |
86554af2 | 11791 | NV nv; /* number read, as a double */ |
a0714e2c | 11792 | SV *sv = NULL; /* place to put the converted number */ |
a86a20aa | 11793 | bool floatit; /* boolean: int or float? */ |
cbbf8932 | 11794 | const char *lastub = NULL; /* position of last underbar */ |
bfed75c6 | 11795 | static char const number_too_long[] = "Number too long"; |
378cc40b | 11796 | |
02aa26ce NT |
11797 | /* We use the first character to decide what type of number this is */ |
11798 | ||
378cc40b | 11799 | switch (*s) { |
79072805 | 11800 | default: |
cea2e8a9 | 11801 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 11802 | |
02aa26ce | 11803 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 11804 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
11805 | case '0': |
11806 | { | |
02aa26ce NT |
11807 | /* variables: |
11808 | u holds the "number so far" | |
4f19785b WSI |
11809 | shift the power of 2 of the base |
11810 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
11811 | overflowed was the number more than we can hold? |
11812 | ||
11813 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
11814 | we in octal/hex/binary?" indicator to disallow hex characters |
11815 | when in octal mode. | |
02aa26ce | 11816 | */ |
9e24b6e2 JH |
11817 | NV n = 0.0; |
11818 | UV u = 0; | |
79072805 | 11819 | I32 shift; |
9e24b6e2 | 11820 | bool overflowed = FALSE; |
61f33854 | 11821 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
27da23d5 JH |
11822 | static const NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
11823 | static const char* const bases[5] = | |
11824 | { "", "binary", "", "octal", "hexadecimal" }; | |
11825 | static const char* const Bases[5] = | |
11826 | { "", "Binary", "", "Octal", "Hexadecimal" }; | |
11827 | static const char* const maxima[5] = | |
11828 | { "", | |
11829 | "0b11111111111111111111111111111111", | |
11830 | "", | |
11831 | "037777777777", | |
11832 | "0xffffffff" }; | |
bfed75c6 | 11833 | const char *base, *Base, *max; |
378cc40b | 11834 | |
02aa26ce | 11835 | /* check for hex */ |
378cc40b LW |
11836 | if (s[1] == 'x') { |
11837 | shift = 4; | |
11838 | s += 2; | |
61f33854 | 11839 | just_zero = FALSE; |
4f19785b WSI |
11840 | } else if (s[1] == 'b') { |
11841 | shift = 1; | |
11842 | s += 2; | |
61f33854 | 11843 | just_zero = FALSE; |
378cc40b | 11844 | } |
02aa26ce | 11845 | /* check for a decimal in disguise */ |
b78218b7 | 11846 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 11847 | goto decimal; |
02aa26ce | 11848 | /* so it must be octal */ |
928753ea | 11849 | else { |
378cc40b | 11850 | shift = 3; |
928753ea JH |
11851 | s++; |
11852 | } | |
11853 | ||
11854 | if (*s == '_') { | |
11855 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11856 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11857 | "Misplaced _ in number"); |
11858 | lastub = s++; | |
11859 | } | |
9e24b6e2 JH |
11860 | |
11861 | base = bases[shift]; | |
11862 | Base = Bases[shift]; | |
11863 | max = maxima[shift]; | |
02aa26ce | 11864 | |
4f19785b | 11865 | /* read the rest of the number */ |
378cc40b | 11866 | for (;;) { |
9e24b6e2 | 11867 | /* x is used in the overflow test, |
893fe2c2 | 11868 | b is the digit we're adding on. */ |
9e24b6e2 | 11869 | UV x, b; |
55497cff | 11870 | |
378cc40b | 11871 | switch (*s) { |
02aa26ce NT |
11872 | |
11873 | /* if we don't mention it, we're done */ | |
378cc40b LW |
11874 | default: |
11875 | goto out; | |
02aa26ce | 11876 | |
928753ea | 11877 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 11878 | case '_': |
041457d9 | 11879 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 11880 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11881 | "Misplaced _ in number"); |
11882 | lastub = s++; | |
de3bb511 | 11883 | break; |
02aa26ce NT |
11884 | |
11885 | /* 8 and 9 are not octal */ | |
378cc40b | 11886 | case '8': case '9': |
4f19785b | 11887 | if (shift == 3) |
cea2e8a9 | 11888 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 11889 | /* FALL THROUGH */ |
02aa26ce NT |
11890 | |
11891 | /* octal digits */ | |
4f19785b | 11892 | case '2': case '3': case '4': |
378cc40b | 11893 | case '5': case '6': case '7': |
4f19785b | 11894 | if (shift == 1) |
cea2e8a9 | 11895 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
11896 | /* FALL THROUGH */ |
11897 | ||
11898 | case '0': case '1': | |
02aa26ce | 11899 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 11900 | goto digit; |
02aa26ce NT |
11901 | |
11902 | /* hex digits */ | |
378cc40b LW |
11903 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
11904 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 11905 | /* make sure they said 0x */ |
378cc40b LW |
11906 | if (shift != 4) |
11907 | goto out; | |
55497cff | 11908 | b = (*s++ & 7) + 9; |
02aa26ce NT |
11909 | |
11910 | /* Prepare to put the digit we have onto the end | |
11911 | of the number so far. We check for overflows. | |
11912 | */ | |
11913 | ||
55497cff | 11914 | digit: |
61f33854 | 11915 | just_zero = FALSE; |
9e24b6e2 JH |
11916 | if (!overflowed) { |
11917 | x = u << shift; /* make room for the digit */ | |
11918 | ||
11919 | if ((x >> shift) != u | |
11920 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
11921 | overflowed = TRUE; |
11922 | n = (NV) u; | |
767a6a26 | 11923 | if (ckWARN_d(WARN_OVERFLOW)) |
9014280d | 11924 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), |
9e24b6e2 JH |
11925 | "Integer overflow in %s number", |
11926 | base); | |
11927 | } else | |
11928 | u = x | b; /* add the digit to the end */ | |
11929 | } | |
11930 | if (overflowed) { | |
11931 | n *= nvshift[shift]; | |
11932 | /* If an NV has not enough bits in its | |
11933 | * mantissa to represent an UV this summing of | |
11934 | * small low-order numbers is a waste of time | |
11935 | * (because the NV cannot preserve the | |
11936 | * low-order bits anyway): we could just | |
11937 | * remember when did we overflow and in the | |
11938 | * end just multiply n by the right | |
11939 | * amount. */ | |
11940 | n += (NV) b; | |
55497cff | 11941 | } |
378cc40b LW |
11942 | break; |
11943 | } | |
11944 | } | |
02aa26ce NT |
11945 | |
11946 | /* if we get here, we had success: make a scalar value from | |
11947 | the number. | |
11948 | */ | |
378cc40b | 11949 | out: |
928753ea JH |
11950 | |
11951 | /* final misplaced underbar check */ | |
11952 | if (s[-1] == '_') { | |
11953 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11954 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
11955 | } |
11956 | ||
561b68a9 | 11957 | sv = newSV(0); |
9e24b6e2 | 11958 | if (overflowed) { |
041457d9 | 11959 | if (n > 4294967295.0 && ckWARN(WARN_PORTABLE)) |
9014280d | 11960 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
11961 | "%s number > %s non-portable", |
11962 | Base, max); | |
11963 | sv_setnv(sv, n); | |
11964 | } | |
11965 | else { | |
15041a67 | 11966 | #if UVSIZE > 4 |
041457d9 | 11967 | if (u > 0xffffffff && ckWARN(WARN_PORTABLE)) |
9014280d | 11968 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
11969 | "%s number > %s non-portable", |
11970 | Base, max); | |
2cc4c2dc | 11971 | #endif |
9e24b6e2 JH |
11972 | sv_setuv(sv, u); |
11973 | } | |
61f33854 | 11974 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
bfed75c6 | 11975 | sv = new_constant(start, s - start, "integer", |
a0714e2c | 11976 | sv, NULL, NULL); |
61f33854 | 11977 | else if (PL_hints & HINT_NEW_BINARY) |
a0714e2c | 11978 | sv = new_constant(start, s - start, "binary", sv, NULL, NULL); |
378cc40b LW |
11979 | } |
11980 | break; | |
02aa26ce NT |
11981 | |
11982 | /* | |
11983 | handle decimal numbers. | |
11984 | we're also sent here when we read a 0 as the first digit | |
11985 | */ | |
378cc40b LW |
11986 | case '1': case '2': case '3': case '4': case '5': |
11987 | case '6': case '7': case '8': case '9': case '.': | |
11988 | decimal: | |
3280af22 NIS |
11989 | d = PL_tokenbuf; |
11990 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 11991 | floatit = FALSE; |
02aa26ce NT |
11992 | |
11993 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 11994 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 11995 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
11996 | if -w is on |
11997 | */ | |
93a17b20 | 11998 | if (*s == '_') { |
041457d9 | 11999 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12000 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12001 | "Misplaced _ in number"); |
12002 | lastub = s++; | |
93a17b20 | 12003 | } |
fc36a67e | 12004 | else { |
02aa26ce | 12005 | /* check for end of fixed-length buffer */ |
fc36a67e | 12006 | if (d >= e) |
cea2e8a9 | 12007 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 12008 | /* if we're ok, copy the character */ |
378cc40b | 12009 | *d++ = *s++; |
fc36a67e | 12010 | } |
378cc40b | 12011 | } |
02aa26ce NT |
12012 | |
12013 | /* final misplaced underbar check */ | |
928753ea | 12014 | if (lastub && s == lastub + 1) { |
d008e5eb | 12015 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 12016 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 12017 | } |
02aa26ce NT |
12018 | |
12019 | /* read a decimal portion if there is one. avoid | |
12020 | 3..5 being interpreted as the number 3. followed | |
12021 | by .5 | |
12022 | */ | |
2f3197b3 | 12023 | if (*s == '.' && s[1] != '.') { |
79072805 | 12024 | floatit = TRUE; |
378cc40b | 12025 | *d++ = *s++; |
02aa26ce | 12026 | |
928753ea JH |
12027 | if (*s == '_') { |
12028 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12029 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12030 | "Misplaced _ in number"); |
12031 | lastub = s; | |
12032 | } | |
12033 | ||
12034 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 12035 | */ |
fc36a67e | 12036 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 12037 | /* fixed length buffer check */ |
fc36a67e | 12038 | if (d >= e) |
cea2e8a9 | 12039 | Perl_croak(aTHX_ number_too_long); |
928753ea | 12040 | if (*s == '_') { |
041457d9 | 12041 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12042 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12043 | "Misplaced _ in number"); |
12044 | lastub = s; | |
12045 | } | |
12046 | else | |
fc36a67e | 12047 | *d++ = *s; |
378cc40b | 12048 | } |
928753ea JH |
12049 | /* fractional part ending in underbar? */ |
12050 | if (s[-1] == '_') { | |
12051 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12052 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12053 | "Misplaced _ in number"); |
12054 | } | |
dd629d5b GS |
12055 | if (*s == '.' && isDIGIT(s[1])) { |
12056 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 12057 | s = start; |
dd629d5b GS |
12058 | goto vstring; |
12059 | } | |
378cc40b | 12060 | } |
02aa26ce NT |
12061 | |
12062 | /* read exponent part, if present */ | |
3792a11b | 12063 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
12064 | floatit = TRUE; |
12065 | s++; | |
02aa26ce NT |
12066 | |
12067 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 12068 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 12069 | |
7fd134d9 JH |
12070 | /* stray preinitial _ */ |
12071 | if (*s == '_') { | |
12072 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12073 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12074 | "Misplaced _ in number"); |
12075 | lastub = s++; | |
12076 | } | |
12077 | ||
02aa26ce | 12078 | /* allow positive or negative exponent */ |
378cc40b LW |
12079 | if (*s == '+' || *s == '-') |
12080 | *d++ = *s++; | |
02aa26ce | 12081 | |
7fd134d9 JH |
12082 | /* stray initial _ */ |
12083 | if (*s == '_') { | |
12084 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12085 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12086 | "Misplaced _ in number"); |
12087 | lastub = s++; | |
12088 | } | |
12089 | ||
7fd134d9 JH |
12090 | /* read digits of exponent */ |
12091 | while (isDIGIT(*s) || *s == '_') { | |
12092 | if (isDIGIT(*s)) { | |
12093 | if (d >= e) | |
12094 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 12095 | *d++ = *s++; |
7fd134d9 JH |
12096 | } |
12097 | else { | |
041457d9 DM |
12098 | if (((lastub && s == lastub + 1) || |
12099 | (!isDIGIT(s[1]) && s[1] != '_')) | |
12100 | && ckWARN(WARN_SYNTAX)) | |
9014280d | 12101 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 | 12102 | "Misplaced _ in number"); |
b3b48e3e | 12103 | lastub = s++; |
7fd134d9 | 12104 | } |
7fd134d9 | 12105 | } |
378cc40b | 12106 | } |
02aa26ce | 12107 | |
02aa26ce NT |
12108 | |
12109 | /* make an sv from the string */ | |
561b68a9 | 12110 | sv = newSV(0); |
097ee67d | 12111 | |
0b7fceb9 | 12112 | /* |
58bb9ec3 NC |
12113 | We try to do an integer conversion first if no characters |
12114 | indicating "float" have been found. | |
0b7fceb9 MU |
12115 | */ |
12116 | ||
12117 | if (!floatit) { | |
58bb9ec3 | 12118 | UV uv; |
6136c704 | 12119 | const int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); |
58bb9ec3 NC |
12120 | |
12121 | if (flags == IS_NUMBER_IN_UV) { | |
12122 | if (uv <= IV_MAX) | |
86554af2 | 12123 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 12124 | else |
c239479b | 12125 | sv_setuv(sv, uv); |
58bb9ec3 NC |
12126 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
12127 | if (uv <= (UV) IV_MIN) | |
12128 | sv_setiv(sv, -(IV)uv); | |
12129 | else | |
12130 | floatit = TRUE; | |
12131 | } else | |
12132 | floatit = TRUE; | |
12133 | } | |
0b7fceb9 | 12134 | if (floatit) { |
58bb9ec3 NC |
12135 | /* terminate the string */ |
12136 | *d = '\0'; | |
86554af2 JH |
12137 | nv = Atof(PL_tokenbuf); |
12138 | sv_setnv(sv, nv); | |
12139 | } | |
86554af2 | 12140 | |
b8403495 JH |
12141 | if ( floatit ? (PL_hints & HINT_NEW_FLOAT) : |
12142 | (PL_hints & HINT_NEW_INTEGER) ) | |
10edeb5d JH |
12143 | sv = new_constant(PL_tokenbuf, |
12144 | d - PL_tokenbuf, | |
12145 | (const char *) | |
b8403495 | 12146 | (floatit ? "float" : "integer"), |
a0714e2c | 12147 | sv, NULL, NULL); |
378cc40b | 12148 | break; |
0b7fceb9 | 12149 | |
e312add1 | 12150 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 12151 | case 'v': |
dd629d5b | 12152 | vstring: |
561b68a9 | 12153 | sv = newSV(5); /* preallocate storage space */ |
b0f01acb | 12154 | s = scan_vstring(s,sv); |
a7cb1f99 | 12155 | break; |
79072805 | 12156 | } |
a687059c | 12157 | |
02aa26ce NT |
12158 | /* make the op for the constant and return */ |
12159 | ||
a86a20aa | 12160 | if (sv) |
b73d6f50 | 12161 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 12162 | else |
5f66b61c | 12163 | lvalp->opval = NULL; |
a687059c | 12164 | |
73d840c0 | 12165 | return (char *)s; |
378cc40b LW |
12166 | } |
12167 | ||
76e3520e | 12168 | STATIC char * |
cea2e8a9 | 12169 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 12170 | { |
97aff369 | 12171 | dVAR; |
79072805 | 12172 | register char *eol; |
378cc40b | 12173 | register char *t; |
6136c704 | 12174 | SV * const stuff = newSVpvs(""); |
79072805 | 12175 | bool needargs = FALSE; |
c5ee2135 | 12176 | bool eofmt = FALSE; |
5db06880 NC |
12177 | #ifdef PERL_MAD |
12178 | char *tokenstart = s; | |
12179 | SV* savewhite; | |
12180 | ||
12181 | if (PL_madskills) { | |
cd81e915 NC |
12182 | savewhite = PL_thiswhite; |
12183 | PL_thiswhite = 0; | |
5db06880 NC |
12184 | } |
12185 | #endif | |
378cc40b | 12186 | |
79072805 | 12187 | while (!needargs) { |
a1b95068 | 12188 | if (*s == '.') { |
c35e046a | 12189 | t = s+1; |
51882d45 | 12190 | #ifdef PERL_STRICT_CR |
c35e046a AL |
12191 | while (SPACE_OR_TAB(*t)) |
12192 | t++; | |
51882d45 | 12193 | #else |
c35e046a AL |
12194 | while (SPACE_OR_TAB(*t) || *t == '\r') |
12195 | t++; | |
51882d45 | 12196 | #endif |
c5ee2135 WL |
12197 | if (*t == '\n' || t == PL_bufend) { |
12198 | eofmt = TRUE; | |
79072805 | 12199 | break; |
c5ee2135 | 12200 | } |
79072805 | 12201 | } |
3280af22 | 12202 | if (PL_in_eval && !PL_rsfp) { |
07409e01 | 12203 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 12204 | if (!eol++) |
3280af22 | 12205 | eol = PL_bufend; |
0f85fab0 LW |
12206 | } |
12207 | else | |
3280af22 | 12208 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 12209 | if (*s != '#') { |
a0d0e21e LW |
12210 | for (t = s; t < eol; t++) { |
12211 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
12212 | needargs = FALSE; | |
12213 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 12214 | } |
a0d0e21e LW |
12215 | if (*t == '@' || *t == '^') |
12216 | needargs = TRUE; | |
378cc40b | 12217 | } |
7121b347 MG |
12218 | if (eol > s) { |
12219 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 12220 | #ifndef PERL_STRICT_CR |
7121b347 MG |
12221 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
12222 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
12223 | end[-2] = '\n'; | |
12224 | end[-1] = '\0'; | |
b162af07 | 12225 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 12226 | } |
2dc4c65b | 12227 | #endif |
7121b347 MG |
12228 | } |
12229 | else | |
12230 | break; | |
79072805 | 12231 | } |
95a20fc0 | 12232 | s = (char*)eol; |
3280af22 | 12233 | if (PL_rsfp) { |
5db06880 NC |
12234 | #ifdef PERL_MAD |
12235 | if (PL_madskills) { | |
cd81e915 NC |
12236 | if (PL_thistoken) |
12237 | sv_catpvn(PL_thistoken, tokenstart, PL_bufend - tokenstart); | |
5db06880 | 12238 | else |
cd81e915 | 12239 | PL_thistoken = newSVpvn(tokenstart, PL_bufend - tokenstart); |
5db06880 NC |
12240 | } |
12241 | #endif | |
3280af22 | 12242 | s = filter_gets(PL_linestr, PL_rsfp, 0); |
5db06880 NC |
12243 | #ifdef PERL_MAD |
12244 | tokenstart = PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
12245 | #else | |
3280af22 | 12246 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); |
5db06880 | 12247 | #endif |
3280af22 | 12248 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); |
bd61b366 | 12249 | PL_last_lop = PL_last_uni = NULL; |
79072805 | 12250 | if (!s) { |
3280af22 | 12251 | s = PL_bufptr; |
378cc40b LW |
12252 | break; |
12253 | } | |
378cc40b | 12254 | } |
463ee0b2 | 12255 | incline(s); |
79072805 | 12256 | } |
a0d0e21e LW |
12257 | enough: |
12258 | if (SvCUR(stuff)) { | |
3280af22 | 12259 | PL_expect = XTERM; |
79072805 | 12260 | if (needargs) { |
3280af22 | 12261 | PL_lex_state = LEX_NORMAL; |
cd81e915 | 12262 | start_force(PL_curforce); |
9ded7720 | 12263 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 LW |
12264 | force_next(','); |
12265 | } | |
a0d0e21e | 12266 | else |
3280af22 | 12267 | PL_lex_state = LEX_FORMLINE; |
1bd51a4c | 12268 | if (!IN_BYTES) { |
95a20fc0 | 12269 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
1bd51a4c IH |
12270 | SvUTF8_on(stuff); |
12271 | else if (PL_encoding) | |
12272 | sv_recode_to_utf8(stuff, PL_encoding); | |
12273 | } | |
cd81e915 | 12274 | start_force(PL_curforce); |
9ded7720 | 12275 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 12276 | force_next(THING); |
cd81e915 | 12277 | start_force(PL_curforce); |
9ded7720 | 12278 | NEXTVAL_NEXTTOKE.ival = OP_FORMLINE; |
79072805 | 12279 | force_next(LSTOP); |
378cc40b | 12280 | } |
79072805 | 12281 | else { |
8990e307 | 12282 | SvREFCNT_dec(stuff); |
c5ee2135 WL |
12283 | if (eofmt) |
12284 | PL_lex_formbrack = 0; | |
3280af22 | 12285 | PL_bufptr = s; |
79072805 | 12286 | } |
5db06880 NC |
12287 | #ifdef PERL_MAD |
12288 | if (PL_madskills) { | |
cd81e915 NC |
12289 | if (PL_thistoken) |
12290 | sv_catpvn(PL_thistoken, tokenstart, s - tokenstart); | |
5db06880 | 12291 | else |
cd81e915 NC |
12292 | PL_thistoken = newSVpvn(tokenstart, s - tokenstart); |
12293 | PL_thiswhite = savewhite; | |
5db06880 NC |
12294 | } |
12295 | #endif | |
79072805 | 12296 | return s; |
378cc40b | 12297 | } |
a687059c | 12298 | |
76e3520e | 12299 | STATIC void |
cea2e8a9 | 12300 | S_set_csh(pTHX) |
a687059c | 12301 | { |
ae986130 | 12302 | #ifdef CSH |
97aff369 | 12303 | dVAR; |
3280af22 NIS |
12304 | if (!PL_cshlen) |
12305 | PL_cshlen = strlen(PL_cshname); | |
5f66b61c | 12306 | #else |
b2675967 | 12307 | #if defined(USE_ITHREADS) |
96a5add6 | 12308 | PERL_UNUSED_CONTEXT; |
ae986130 | 12309 | #endif |
b2675967 | 12310 | #endif |
a687059c | 12311 | } |
463ee0b2 | 12312 | |
ba6d6ac9 | 12313 | I32 |
864dbfa3 | 12314 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 12315 | { |
97aff369 | 12316 | dVAR; |
a3b680e6 | 12317 | const I32 oldsavestack_ix = PL_savestack_ix; |
6136c704 | 12318 | CV* const outsidecv = PL_compcv; |
8990e307 | 12319 | |
3280af22 NIS |
12320 | if (PL_compcv) { |
12321 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 12322 | } |
7766f137 | 12323 | SAVEI32(PL_subline); |
3280af22 | 12324 | save_item(PL_subname); |
3280af22 | 12325 | SAVESPTR(PL_compcv); |
3280af22 | 12326 | |
561b68a9 | 12327 | PL_compcv = (CV*)newSV(0); |
3280af22 NIS |
12328 | sv_upgrade((SV *)PL_compcv, is_format ? SVt_PVFM : SVt_PVCV); |
12329 | CvFLAGS(PL_compcv) |= flags; | |
12330 | ||
57843af0 | 12331 | PL_subline = CopLINE(PL_curcop); |
dd2155a4 | 12332 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
b37c2d43 | 12333 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc_simple(outsidecv); |
a3985cdc | 12334 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
748a9306 | 12335 | |
8990e307 LW |
12336 | return oldsavestack_ix; |
12337 | } | |
12338 | ||
084592ab CN |
12339 | #ifdef __SC__ |
12340 | #pragma segment Perl_yylex | |
12341 | #endif | |
8990e307 | 12342 | int |
bfed75c6 | 12343 | Perl_yywarn(pTHX_ const char *s) |
8990e307 | 12344 | { |
97aff369 | 12345 | dVAR; |
faef0170 | 12346 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 12347 | yyerror(s); |
faef0170 | 12348 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 12349 | return 0; |
8990e307 LW |
12350 | } |
12351 | ||
12352 | int | |
bfed75c6 | 12353 | Perl_yyerror(pTHX_ const char *s) |
463ee0b2 | 12354 | { |
97aff369 | 12355 | dVAR; |
bfed75c6 AL |
12356 | const char *where = NULL; |
12357 | const char *context = NULL; | |
68dc0745 | 12358 | int contlen = -1; |
46fc3d4c | 12359 | SV *msg; |
463ee0b2 | 12360 | |
3280af22 | 12361 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 12362 | where = "at EOF"; |
8bcfe651 TM |
12363 | else if (PL_oldoldbufptr && PL_bufptr > PL_oldoldbufptr && |
12364 | PL_bufptr - PL_oldoldbufptr < 200 && PL_oldoldbufptr != PL_oldbufptr && | |
12365 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12366 | /* |
12367 | Only for NetWare: | |
12368 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12369 | when the script has error such as not having the closing quotes like: | |
12370 | if ($var eq "value) | |
12371 | Checking of white spaces is anyway done in NetWare code. | |
12372 | */ | |
12373 | #ifndef NETWARE | |
3280af22 NIS |
12374 | while (isSPACE(*PL_oldoldbufptr)) |
12375 | PL_oldoldbufptr++; | |
f355267c | 12376 | #endif |
3280af22 NIS |
12377 | context = PL_oldoldbufptr; |
12378 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 12379 | } |
8bcfe651 TM |
12380 | else if (PL_oldbufptr && PL_bufptr > PL_oldbufptr && |
12381 | PL_bufptr - PL_oldbufptr < 200 && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12382 | /* |
12383 | Only for NetWare: | |
12384 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12385 | when the script has error such as not having the closing quotes like: | |
12386 | if ($var eq "value) | |
12387 | Checking of white spaces is anyway done in NetWare code. | |
12388 | */ | |
12389 | #ifndef NETWARE | |
3280af22 NIS |
12390 | while (isSPACE(*PL_oldbufptr)) |
12391 | PL_oldbufptr++; | |
f355267c | 12392 | #endif |
3280af22 NIS |
12393 | context = PL_oldbufptr; |
12394 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
12395 | } |
12396 | else if (yychar > 255) | |
68dc0745 | 12397 | where = "next token ???"; |
12fbd33b | 12398 | else if (yychar == -2) { /* YYEMPTY */ |
3280af22 NIS |
12399 | if (PL_lex_state == LEX_NORMAL || |
12400 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 12401 | where = "at end of line"; |
3280af22 | 12402 | else if (PL_lex_inpat) |
68dc0745 | 12403 | where = "within pattern"; |
463ee0b2 | 12404 | else |
68dc0745 | 12405 | where = "within string"; |
463ee0b2 | 12406 | } |
46fc3d4c | 12407 | else { |
6136c704 | 12408 | SV * const where_sv = sv_2mortal(newSVpvs("next char ")); |
46fc3d4c | 12409 | if (yychar < 32) |
cea2e8a9 | 12410 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
46fc3d4c | 12411 | else if (isPRINT_LC(yychar)) |
cea2e8a9 | 12412 | Perl_sv_catpvf(aTHX_ where_sv, "%c", yychar); |
463ee0b2 | 12413 | else |
cea2e8a9 | 12414 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
95a20fc0 | 12415 | where = SvPVX_const(where_sv); |
463ee0b2 | 12416 | } |
46fc3d4c | 12417 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 12418 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 12419 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 12420 | if (context) |
cea2e8a9 | 12421 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 12422 | else |
cea2e8a9 | 12423 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 12424 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 12425 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 12426 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 12427 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 12428 | PL_multi_end = 0; |
a0d0e21e | 12429 | } |
56da5a46 | 12430 | if (PL_in_eval & EVAL_WARNONLY && ckWARN_d(WARN_SYNTAX)) |
95b63a38 | 12431 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, (void*)msg); |
463ee0b2 | 12432 | else |
5a844595 | 12433 | qerror(msg); |
c7d6bfb2 GS |
12434 | if (PL_error_count >= 10) { |
12435 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 12436 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
95b63a38 | 12437 | (void*)ERRSV, OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
12438 | else |
12439 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 12440 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 12441 | } |
3280af22 | 12442 | PL_in_my = 0; |
5c284bb0 | 12443 | PL_in_my_stash = NULL; |
463ee0b2 LW |
12444 | return 0; |
12445 | } | |
084592ab CN |
12446 | #ifdef __SC__ |
12447 | #pragma segment Main | |
12448 | #endif | |
4e35701f | 12449 | |
b250498f | 12450 | STATIC char* |
3ae08724 | 12451 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 12452 | { |
97aff369 | 12453 | dVAR; |
f54cb97a | 12454 | const STRLEN slen = SvCUR(PL_linestr); |
7aa207d6 | 12455 | switch (s[0]) { |
4e553d73 NIS |
12456 | case 0xFF: |
12457 | if (s[1] == 0xFE) { | |
7aa207d6 | 12458 | /* UTF-16 little-endian? (or UTF32-LE?) */ |
3ae08724 | 12459 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
7aa207d6 | 12460 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-LE"); |
01ec43d0 | 12461 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12462 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF16-LE script encoding (BOM)\n"); |
3ae08724 | 12463 | s += 2; |
7aa207d6 | 12464 | utf16le: |
dea0fc0b JH |
12465 | if (PL_bufend > (char*)s) { |
12466 | U8 *news; | |
12467 | I32 newlen; | |
12468 | ||
12469 | filter_add(utf16rev_textfilter, NULL); | |
a02a5408 | 12470 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd | 12471 | utf16_to_utf8_reversed(s, news, |
aed58286 | 12472 | PL_bufend - (char*)s - 1, |
1de9afcd | 12473 | &newlen); |
7aa207d6 | 12474 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
5db06880 NC |
12475 | #ifdef PERL_MAD |
12476 | s = (U8*)SvPVX(PL_linestr); | |
12477 | Copy(news, s, newlen, U8); | |
12478 | s[newlen] = '\0'; | |
12479 | #endif | |
dea0fc0b | 12480 | Safefree(news); |
7aa207d6 JH |
12481 | SvUTF8_on(PL_linestr); |
12482 | s = (U8*)SvPVX(PL_linestr); | |
5db06880 NC |
12483 | #ifdef PERL_MAD |
12484 | /* FIXME - is this a general bug fix? */ | |
12485 | s[newlen] = '\0'; | |
12486 | #endif | |
7aa207d6 | 12487 | PL_bufend = SvPVX(PL_linestr) + newlen; |
dea0fc0b | 12488 | } |
b250498f | 12489 | #else |
7aa207d6 | 12490 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-LE"); |
b250498f | 12491 | #endif |
01ec43d0 GS |
12492 | } |
12493 | break; | |
78ae23f5 | 12494 | case 0xFE: |
7aa207d6 | 12495 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 12496 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12497 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b | 12498 | s += 2; |
7aa207d6 | 12499 | utf16be: |
dea0fc0b JH |
12500 | if (PL_bufend > (char *)s) { |
12501 | U8 *news; | |
12502 | I32 newlen; | |
12503 | ||
12504 | filter_add(utf16_textfilter, NULL); | |
a02a5408 | 12505 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd RGS |
12506 | utf16_to_utf8(s, news, |
12507 | PL_bufend - (char*)s, | |
12508 | &newlen); | |
7aa207d6 | 12509 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
dea0fc0b | 12510 | Safefree(news); |
7aa207d6 JH |
12511 | SvUTF8_on(PL_linestr); |
12512 | s = (U8*)SvPVX(PL_linestr); | |
12513 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
dea0fc0b | 12514 | } |
b250498f | 12515 | #else |
7aa207d6 | 12516 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-BE"); |
b250498f | 12517 | #endif |
01ec43d0 GS |
12518 | } |
12519 | break; | |
3ae08724 GS |
12520 | case 0xEF: |
12521 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
7aa207d6 | 12522 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
12523 | s += 3; /* UTF-8 */ |
12524 | } | |
12525 | break; | |
12526 | case 0: | |
7aa207d6 JH |
12527 | if (slen > 3) { |
12528 | if (s[1] == 0) { | |
12529 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
12530 | /* UTF-32 big-endian */ | |
12531 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-BE"); | |
12532 | } | |
12533 | } | |
12534 | else if (s[2] == 0 && s[3] != 0) { | |
12535 | /* Leading bytes | |
12536 | * 00 xx 00 xx | |
12537 | * are a good indicator of UTF-16BE. */ | |
12538 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); | |
12539 | goto utf16be; | |
12540 | } | |
01ec43d0 | 12541 | } |
e294cc5d JH |
12542 | #ifdef EBCDIC |
12543 | case 0xDD: | |
12544 | if (slen > 3 && s[1] == 0x73 && s[2] == 0x66 && s[3] == 0x73) { | |
12545 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); | |
12546 | s += 4; /* UTF-8 */ | |
12547 | } | |
12548 | break; | |
12549 | #endif | |
12550 | ||
7aa207d6 JH |
12551 | default: |
12552 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
12553 | /* Leading bytes | |
12554 | * xx 00 xx 00 | |
12555 | * are a good indicator of UTF-16LE. */ | |
12556 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); | |
12557 | goto utf16le; | |
12558 | } | |
01ec43d0 | 12559 | } |
b8f84bb2 | 12560 | return (char*)s; |
b250498f | 12561 | } |
4755096e | 12562 | |
4755096e GS |
12563 | /* |
12564 | * restore_rsfp | |
12565 | * Restore a source filter. | |
12566 | */ | |
12567 | ||
12568 | static void | |
acfe0abc | 12569 | restore_rsfp(pTHX_ void *f) |
4755096e | 12570 | { |
97aff369 | 12571 | dVAR; |
0bd48802 | 12572 | PerlIO * const fp = (PerlIO*)f; |
4755096e GS |
12573 | |
12574 | if (PL_rsfp == PerlIO_stdin()) | |
12575 | PerlIO_clearerr(PL_rsfp); | |
12576 | else if (PL_rsfp && (PL_rsfp != fp)) | |
12577 | PerlIO_close(PL_rsfp); | |
12578 | PL_rsfp = fp; | |
12579 | } | |
6e3aabd6 GS |
12580 | |
12581 | #ifndef PERL_NO_UTF16_FILTER | |
12582 | static I32 | |
acfe0abc | 12583 | utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12584 | { |
97aff369 | 12585 | dVAR; |
f54cb97a AL |
12586 | const STRLEN old = SvCUR(sv); |
12587 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12588 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12589 | "utf16_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12590 | FPTR2DPTR(void *, utf16_textfilter), |
12591 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12592 | if (count) { |
12593 | U8* tmps; | |
dea0fc0b | 12594 | I32 newlen; |
a02a5408 | 12595 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12596 | Copy(SvPVX_const(sv), tmps, old, char); |
12597 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12598 | SvCUR(sv) - old, &newlen); |
12599 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12600 | } |
1de9afcd RGS |
12601 | DEBUG_P({sv_dump(sv);}); |
12602 | return SvCUR(sv); | |
6e3aabd6 GS |
12603 | } |
12604 | ||
12605 | static I32 | |
acfe0abc | 12606 | utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12607 | { |
97aff369 | 12608 | dVAR; |
f54cb97a AL |
12609 | const STRLEN old = SvCUR(sv); |
12610 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12611 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12612 | "utf16rev_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12613 | FPTR2DPTR(void *, utf16rev_textfilter), |
12614 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12615 | if (count) { |
12616 | U8* tmps; | |
dea0fc0b | 12617 | I32 newlen; |
a02a5408 | 12618 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12619 | Copy(SvPVX_const(sv), tmps, old, char); |
12620 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12621 | SvCUR(sv) - old, &newlen); |
12622 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12623 | } |
1de9afcd | 12624 | DEBUG_P({ sv_dump(sv); }); |
6e3aabd6 GS |
12625 | return count; |
12626 | } | |
12627 | #endif | |
9f4817db | 12628 | |
f333445c JP |
12629 | /* |
12630 | Returns a pointer to the next character after the parsed | |
12631 | vstring, as well as updating the passed in sv. | |
12632 | ||
12633 | Function must be called like | |
12634 | ||
561b68a9 | 12635 | sv = newSV(5); |
f333445c JP |
12636 | s = scan_vstring(s,sv); |
12637 | ||
12638 | The sv should already be large enough to store the vstring | |
12639 | passed in, for performance reasons. | |
12640 | ||
12641 | */ | |
12642 | ||
12643 | char * | |
bfed75c6 | 12644 | Perl_scan_vstring(pTHX_ const char *s, SV *sv) |
f333445c | 12645 | { |
97aff369 | 12646 | dVAR; |
bfed75c6 AL |
12647 | const char *pos = s; |
12648 | const char *start = s; | |
f333445c | 12649 | if (*pos == 'v') pos++; /* get past 'v' */ |
3e884cbf JH |
12650 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
12651 | pos++; | |
f333445c JP |
12652 | if ( *pos != '.') { |
12653 | /* this may not be a v-string if followed by => */ | |
bfed75c6 | 12654 | const char *next = pos; |
8fc7bb1c SM |
12655 | while (next < PL_bufend && isSPACE(*next)) |
12656 | ++next; | |
12657 | if ((PL_bufend - next) >= 2 && *next == '=' && next[1] == '>' ) { | |
f333445c JP |
12658 | /* return string not v-string */ |
12659 | sv_setpvn(sv,(char *)s,pos-s); | |
73d840c0 | 12660 | return (char *)pos; |
f333445c JP |
12661 | } |
12662 | } | |
12663 | ||
12664 | if (!isALPHA(*pos)) { | |
89ebb4a3 | 12665 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
f333445c | 12666 | |
d4c19fe8 AL |
12667 | if (*s == 'v') |
12668 | s++; /* get past 'v' */ | |
f333445c JP |
12669 | |
12670 | sv_setpvn(sv, "", 0); | |
12671 | ||
12672 | for (;;) { | |
d4c19fe8 | 12673 | /* this is atoi() that tolerates underscores */ |
0bd48802 AL |
12674 | U8 *tmpend; |
12675 | UV rev = 0; | |
d4c19fe8 AL |
12676 | const char *end = pos; |
12677 | UV mult = 1; | |
12678 | while (--end >= s) { | |
12679 | if (*end != '_') { | |
12680 | const UV orev = rev; | |
f333445c JP |
12681 | rev += (*end - '0') * mult; |
12682 | mult *= 10; | |
12683 | if (orev > rev && ckWARN_d(WARN_OVERFLOW)) | |
12684 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), | |
12685 | "Integer overflow in decimal number"); | |
12686 | } | |
12687 | } | |
12688 | #ifdef EBCDIC | |
12689 | if (rev > 0x7FFFFFFF) | |
12690 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
12691 | #endif | |
12692 | /* Append native character for the rev point */ | |
12693 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
12694 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
12695 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
12696 | SvUTF8_on(sv); | |
3e884cbf | 12697 | if (pos + 1 < PL_bufend && *pos == '.' && isDIGIT(pos[1])) |
f333445c JP |
12698 | s = ++pos; |
12699 | else { | |
12700 | s = pos; | |
12701 | break; | |
12702 | } | |
3e884cbf | 12703 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
f333445c JP |
12704 | pos++; |
12705 | } | |
12706 | SvPOK_on(sv); | |
12707 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
12708 | SvRMAGICAL_on(sv); | |
12709 | } | |
73d840c0 | 12710 | return (char *)s; |
f333445c JP |
12711 | } |
12712 | ||
1da4ca5f NC |
12713 | /* |
12714 | * Local variables: | |
12715 | * c-indentation-style: bsd | |
12716 | * c-basic-offset: 4 | |
12717 | * indent-tabs-mode: t | |
12718 | * End: | |
12719 | * | |
37442d52 RGS |
12720 | * ex: set ts=8 sts=4 sw=4 noet: |
12721 | */ |