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 | |
d4c19fe8 | 1793 | const char * const leaveit = /* set of acceptably-backslashed characters */ |
10edeb5d JH |
1794 | (const char *) |
1795 | (PL_lex_inpat | |
81714fb9 | 1796 | ? "\\.^$@AGZdDwWsSbBpPXC+*?|()-Nnrktfeaxcz0123456789[{]} \t\n\r\f\v#" |
10edeb5d | 1797 | : ""); |
79072805 | 1798 | |
2b9d42f0 NIS |
1799 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
1800 | /* If we are doing a trans and we know we want UTF8 set expectation */ | |
1801 | has_utf8 = PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF); | |
1802 | this_utf8 = PL_sublex_info.sub_op->op_private & (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
1803 | } | |
1804 | ||
1805 | ||
79072805 | 1806 | while (s < send || dorange) { |
02aa26ce | 1807 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 1808 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 1809 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 1810 | if (dorange) { |
1ba5c669 JH |
1811 | I32 i; /* current expanded character */ |
1812 | I32 min; /* first character in range */ | |
1813 | I32 max; /* last character in range */ | |
02aa26ce | 1814 | |
e294cc5d JH |
1815 | #ifdef EBCDIC |
1816 | UV uvmax = 0; | |
1817 | #endif | |
1818 | ||
1819 | if (has_utf8 | |
1820 | #ifdef EBCDIC | |
1821 | && !native_range | |
1822 | #endif | |
1823 | ) { | |
9d4ba2ae | 1824 | char * const c = (char*)utf8_hop((U8*)d, -1); |
8973db79 JH |
1825 | char *e = d++; |
1826 | while (e-- > c) | |
1827 | *(e + 1) = *e; | |
25716404 | 1828 | *c = (char)UTF_TO_NATIVE(0xff); |
8973db79 JH |
1829 | /* mark the range as done, and continue */ |
1830 | dorange = FALSE; | |
1831 | didrange = TRUE; | |
1832 | continue; | |
1833 | } | |
2b9d42f0 | 1834 | |
95a20fc0 | 1835 | i = d - SvPVX_const(sv); /* remember current offset */ |
e294cc5d JH |
1836 | #ifdef EBCDIC |
1837 | SvGROW(sv, | |
1838 | SvLEN(sv) + (has_utf8 ? | |
1839 | (512 - UTF_CONTINUATION_MARK + | |
1840 | UNISKIP(0x100)) | |
1841 | : 256)); | |
1842 | /* How many two-byte within 0..255: 128 in UTF-8, | |
1843 | * 96 in UTF-8-mod. */ | |
1844 | #else | |
9cbb5ea2 | 1845 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
e294cc5d | 1846 | #endif |
9cbb5ea2 | 1847 | d = SvPVX(sv) + i; /* refresh d after realloc */ |
e294cc5d JH |
1848 | #ifdef EBCDIC |
1849 | if (has_utf8) { | |
1850 | int j; | |
1851 | for (j = 0; j <= 1; j++) { | |
1852 | char * const c = (char*)utf8_hop((U8*)d, -1); | |
1853 | const UV uv = utf8n_to_uvchr((U8*)c, d - c, NULL, 0); | |
1854 | if (j) | |
1855 | min = (U8)uv; | |
1856 | else if (uv < 256) | |
1857 | max = (U8)uv; | |
1858 | else { | |
1859 | max = (U8)0xff; /* only to \xff */ | |
1860 | uvmax = uv; /* \x{100} to uvmax */ | |
1861 | } | |
1862 | d = c; /* eat endpoint chars */ | |
1863 | } | |
1864 | } | |
1865 | else { | |
1866 | #endif | |
1867 | d -= 2; /* eat the first char and the - */ | |
1868 | min = (U8)*d; /* first char in range */ | |
1869 | max = (U8)d[1]; /* last char in range */ | |
1870 | #ifdef EBCDIC | |
1871 | } | |
1872 | #endif | |
8ada0baa | 1873 | |
c2e66d9e | 1874 | if (min > max) { |
01ec43d0 | 1875 | Perl_croak(aTHX_ |
d1573ac7 | 1876 | "Invalid range \"%c-%c\" in transliteration operator", |
1ba5c669 | 1877 | (char)min, (char)max); |
c2e66d9e GS |
1878 | } |
1879 | ||
c7f1f016 | 1880 | #ifdef EBCDIC |
4c3a8340 TS |
1881 | if (literal_endpoint == 2 && |
1882 | ((isLOWER(min) && isLOWER(max)) || | |
1883 | (isUPPER(min) && isUPPER(max)))) { | |
8ada0baa JH |
1884 | if (isLOWER(min)) { |
1885 | for (i = min; i <= max; i++) | |
1886 | if (isLOWER(i)) | |
db42d148 | 1887 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1888 | } else { |
1889 | for (i = min; i <= max; i++) | |
1890 | if (isUPPER(i)) | |
db42d148 | 1891 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1892 | } |
1893 | } | |
1894 | else | |
1895 | #endif | |
1896 | for (i = min; i <= max; i++) | |
e294cc5d JH |
1897 | #ifdef EBCDIC |
1898 | if (has_utf8) { | |
1899 | const U8 ch = (U8)NATIVE_TO_UTF(i); | |
1900 | if (UNI_IS_INVARIANT(ch)) | |
1901 | *d++ = (U8)i; | |
1902 | else { | |
1903 | *d++ = (U8)UTF8_EIGHT_BIT_HI(ch); | |
1904 | *d++ = (U8)UTF8_EIGHT_BIT_LO(ch); | |
1905 | } | |
1906 | } | |
1907 | else | |
1908 | #endif | |
1909 | *d++ = (char)i; | |
1910 | ||
1911 | #ifdef EBCDIC | |
1912 | if (uvmax) { | |
1913 | d = (char*)uvchr_to_utf8((U8*)d, 0x100); | |
1914 | if (uvmax > 0x101) | |
1915 | *d++ = (char)UTF_TO_NATIVE(0xff); | |
1916 | if (uvmax > 0x100) | |
1917 | d = (char*)uvchr_to_utf8((U8*)d, uvmax); | |
1918 | } | |
1919 | #endif | |
02aa26ce NT |
1920 | |
1921 | /* mark the range as done, and continue */ | |
79072805 | 1922 | dorange = FALSE; |
01ec43d0 | 1923 | didrange = TRUE; |
4c3a8340 TS |
1924 | #ifdef EBCDIC |
1925 | literal_endpoint = 0; | |
1926 | #endif | |
79072805 | 1927 | continue; |
4e553d73 | 1928 | } |
02aa26ce NT |
1929 | |
1930 | /* range begins (ignore - as first or last char) */ | |
79072805 | 1931 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 1932 | if (didrange) { |
1fafa243 | 1933 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 1934 | } |
e294cc5d JH |
1935 | if (has_utf8 |
1936 | #ifdef EBCDIC | |
1937 | && !native_range | |
1938 | #endif | |
1939 | ) { | |
25716404 | 1940 | *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
1941 | s++; |
1942 | continue; | |
1943 | } | |
79072805 LW |
1944 | dorange = TRUE; |
1945 | s++; | |
01ec43d0 GS |
1946 | } |
1947 | else { | |
1948 | didrange = FALSE; | |
4c3a8340 TS |
1949 | #ifdef EBCDIC |
1950 | literal_endpoint = 0; | |
e294cc5d | 1951 | native_range = TRUE; |
4c3a8340 | 1952 | #endif |
01ec43d0 | 1953 | } |
79072805 | 1954 | } |
02aa26ce NT |
1955 | |
1956 | /* if we get here, we're not doing a transliteration */ | |
1957 | ||
0f5d15d6 IZ |
1958 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
1959 | except for the last char, which will be done separately. */ | |
3280af22 | 1960 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 | 1961 | if (s[2] == '#') { |
e994fd66 | 1962 | while (s+1 < send && *s != ')') |
db42d148 | 1963 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
155aba94 GS |
1964 | } |
1965 | else if (s[2] == '{' /* This should match regcomp.c */ | |
1966 | || ((s[2] == 'p' || s[2] == '?') && s[3] == '{')) | |
1967 | { | |
cc6b7395 | 1968 | I32 count = 1; |
0f5d15d6 | 1969 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
1970 | char c; |
1971 | ||
d9f97599 GS |
1972 | while (count && (c = *regparse)) { |
1973 | if (c == '\\' && regparse[1]) | |
1974 | regparse++; | |
4e553d73 | 1975 | else if (c == '{') |
cc6b7395 | 1976 | count++; |
4e553d73 | 1977 | else if (c == '}') |
cc6b7395 | 1978 | count--; |
d9f97599 | 1979 | regparse++; |
cc6b7395 | 1980 | } |
e994fd66 | 1981 | if (*regparse != ')') |
5bdf89e7 | 1982 | regparse--; /* Leave one char for continuation. */ |
0f5d15d6 | 1983 | while (s < regparse) |
db42d148 | 1984 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
cc6b7395 | 1985 | } |
748a9306 | 1986 | } |
02aa26ce NT |
1987 | |
1988 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
1989 | else if (*s == '#' && PL_lex_inpat && |
1990 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 | 1991 | while (s+1 < send && *s != '\n') |
db42d148 | 1992 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
748a9306 | 1993 | } |
02aa26ce | 1994 | |
5d1d4326 | 1995 | /* check for embedded arrays |
da6eedaa | 1996 | (@foo, @::foo, @'foo, @{foo}, @$foo, @+, @-) |
5d1d4326 | 1997 | */ |
1749ea0d TS |
1998 | else if (*s == '@' && s[1]) { |
1999 | if (isALNUM_lazy_if(s+1,UTF)) | |
2000 | break; | |
2001 | if (strchr(":'{$", s[1])) | |
2002 | break; | |
2003 | if (!PL_lex_inpat && (s[1] == '+' || s[1] == '-')) | |
2004 | break; /* in regexp, neither @+ nor @- are interpolated */ | |
2005 | } | |
02aa26ce NT |
2006 | |
2007 | /* check for embedded scalars. only stop if we're sure it's a | |
2008 | variable. | |
2009 | */ | |
79072805 | 2010 | else if (*s == '$') { |
3280af22 | 2011 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 2012 | break; |
6002328a | 2013 | if (s + 1 < send && !strchr("()| \r\n\t", s[1])) |
79072805 LW |
2014 | break; /* in regexp, $ might be tail anchor */ |
2015 | } | |
02aa26ce | 2016 | |
2b9d42f0 NIS |
2017 | /* End of else if chain - OP_TRANS rejoin rest */ |
2018 | ||
02aa26ce | 2019 | /* backslashes */ |
79072805 LW |
2020 | if (*s == '\\' && s+1 < send) { |
2021 | s++; | |
02aa26ce NT |
2022 | |
2023 | /* some backslashes we leave behind */ | |
c9f97d15 | 2024 | if (*leaveit && *s && strchr(leaveit, *s)) { |
db42d148 NIS |
2025 | *d++ = NATIVE_TO_NEED(has_utf8,'\\'); |
2026 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
79072805 LW |
2027 | continue; |
2028 | } | |
02aa26ce NT |
2029 | |
2030 | /* deprecate \1 in strings and substitution replacements */ | |
3280af22 | 2031 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 2032 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 2033 | { |
599cee73 | 2034 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 2035 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s); |
79072805 LW |
2036 | *--s = '$'; |
2037 | break; | |
2038 | } | |
02aa26ce NT |
2039 | |
2040 | /* string-change backslash escapes */ | |
3280af22 | 2041 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
2042 | --s; |
2043 | break; | |
2044 | } | |
02aa26ce NT |
2045 | |
2046 | /* if we get here, it's either a quoted -, or a digit */ | |
79072805 | 2047 | switch (*s) { |
02aa26ce NT |
2048 | |
2049 | /* quoted - in transliterations */ | |
79072805 | 2050 | case '-': |
3280af22 | 2051 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
2052 | *d++ = *s++; |
2053 | continue; | |
2054 | } | |
2055 | /* FALL THROUGH */ | |
2056 | default: | |
11b8faa4 | 2057 | { |
86f97054 | 2058 | if ((isALPHA(*s) || isDIGIT(*s)) && |
041457d9 | 2059 | ckWARN(WARN_MISC)) |
9014280d | 2060 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
e294cc5d JH |
2061 | "Unrecognized escape \\%c passed through", |
2062 | *s); | |
11b8faa4 | 2063 | /* default action is to copy the quoted character */ |
f9a63242 | 2064 | goto default_action; |
11b8faa4 | 2065 | } |
02aa26ce NT |
2066 | |
2067 | /* \132 indicates an octal constant */ | |
79072805 LW |
2068 | case '0': case '1': case '2': case '3': |
2069 | case '4': case '5': case '6': case '7': | |
ba210ebe | 2070 | { |
53305cf1 NC |
2071 | I32 flags = 0; |
2072 | STRLEN len = 3; | |
2073 | uv = grok_oct(s, &len, &flags, NULL); | |
ba210ebe JH |
2074 | s += len; |
2075 | } | |
012bcf8d | 2076 | goto NUM_ESCAPE_INSERT; |
02aa26ce NT |
2077 | |
2078 | /* \x24 indicates a hex constant */ | |
79072805 | 2079 | case 'x': |
a0ed51b3 LW |
2080 | ++s; |
2081 | if (*s == '{') { | |
9d4ba2ae | 2082 | char* const e = strchr(s, '}'); |
a4c04bdc NC |
2083 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
2084 | PERL_SCAN_DISALLOW_PREFIX; | |
53305cf1 | 2085 | STRLEN len; |
355860ce | 2086 | |
53305cf1 | 2087 | ++s; |
adaeee49 | 2088 | if (!e) { |
a0ed51b3 | 2089 | yyerror("Missing right brace on \\x{}"); |
355860ce | 2090 | continue; |
ba210ebe | 2091 | } |
53305cf1 NC |
2092 | len = e - s; |
2093 | uv = grok_hex(s, &len, &flags, NULL); | |
ba210ebe | 2094 | s = e + 1; |
a0ed51b3 LW |
2095 | } |
2096 | else { | |
ba210ebe | 2097 | { |
53305cf1 | 2098 | STRLEN len = 2; |
a4c04bdc | 2099 | I32 flags = PERL_SCAN_DISALLOW_PREFIX; |
53305cf1 | 2100 | uv = grok_hex(s, &len, &flags, NULL); |
ba210ebe JH |
2101 | s += len; |
2102 | } | |
012bcf8d GS |
2103 | } |
2104 | ||
2105 | NUM_ESCAPE_INSERT: | |
2106 | /* Insert oct or hex escaped character. | |
301d3d20 | 2107 | * There will always enough room in sv since such |
db42d148 | 2108 | * escapes will be longer than any UTF-8 sequence |
301d3d20 | 2109 | * they can end up as. */ |
ba7cea30 | 2110 | |
c7f1f016 NIS |
2111 | /* We need to map to chars to ASCII before doing the tests |
2112 | to cover EBCDIC | |
2113 | */ | |
c4d5f83a | 2114 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(uv))) { |
9aa983d2 | 2115 | if (!has_utf8 && uv > 255) { |
301d3d20 JH |
2116 | /* Might need to recode whatever we have |
2117 | * accumulated so far if it contains any | |
2118 | * hibit chars. | |
2119 | * | |
2120 | * (Can't we keep track of that and avoid | |
2121 | * this rescan? --jhi) | |
012bcf8d | 2122 | */ |
c7f1f016 | 2123 | int hicount = 0; |
63cd0674 NIS |
2124 | U8 *c; |
2125 | for (c = (U8 *) SvPVX(sv); c < (U8 *)d; c++) { | |
c4d5f83a | 2126 | if (!NATIVE_IS_INVARIANT(*c)) { |
012bcf8d | 2127 | hicount++; |
db42d148 | 2128 | } |
012bcf8d | 2129 | } |
63cd0674 | 2130 | if (hicount) { |
9d4ba2ae | 2131 | const STRLEN offset = d - SvPVX_const(sv); |
db42d148 NIS |
2132 | U8 *src, *dst; |
2133 | d = SvGROW(sv, SvLEN(sv) + hicount + 1) + offset; | |
2134 | src = (U8 *)d - 1; | |
2135 | dst = src+hicount; | |
2136 | d += hicount; | |
cfd0369c | 2137 | while (src >= (const U8 *)SvPVX_const(sv)) { |
c4d5f83a | 2138 | if (!NATIVE_IS_INVARIANT(*src)) { |
9d4ba2ae | 2139 | const U8 ch = NATIVE_TO_ASCII(*src); |
eb160463 GS |
2140 | *dst-- = (U8)UTF8_EIGHT_BIT_LO(ch); |
2141 | *dst-- = (U8)UTF8_EIGHT_BIT_HI(ch); | |
012bcf8d GS |
2142 | } |
2143 | else { | |
63cd0674 | 2144 | *dst-- = *src; |
012bcf8d | 2145 | } |
c7f1f016 | 2146 | src--; |
012bcf8d GS |
2147 | } |
2148 | } | |
2149 | } | |
2150 | ||
9aa983d2 | 2151 | if (has_utf8 || uv > 255) { |
9041c2e3 | 2152 | d = (char*)uvchr_to_utf8((U8*)d, uv); |
4e553d73 | 2153 | has_utf8 = TRUE; |
f9a63242 JH |
2154 | if (PL_lex_inwhat == OP_TRANS && |
2155 | PL_sublex_info.sub_op) { | |
2156 | PL_sublex_info.sub_op->op_private |= | |
2157 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
2158 | : OPpTRANS_TO_UTF); | |
f9a63242 | 2159 | } |
e294cc5d JH |
2160 | #ifdef EBCDIC |
2161 | if (uv > 255 && !dorange) | |
2162 | native_range = FALSE; | |
2163 | #endif | |
012bcf8d | 2164 | } |
a0ed51b3 | 2165 | else { |
012bcf8d | 2166 | *d++ = (char)uv; |
a0ed51b3 | 2167 | } |
012bcf8d GS |
2168 | } |
2169 | else { | |
c4d5f83a | 2170 | *d++ = (char) uv; |
a0ed51b3 | 2171 | } |
79072805 | 2172 | continue; |
02aa26ce | 2173 | |
b239daa5 | 2174 | /* \N{LATIN SMALL LETTER A} is a named character */ |
4a2d328f | 2175 | case 'N': |
55eda711 | 2176 | ++s; |
423cee85 JH |
2177 | if (*s == '{') { |
2178 | char* e = strchr(s, '}'); | |
155aba94 | 2179 | SV *res; |
423cee85 | 2180 | STRLEN len; |
cfd0369c | 2181 | const char *str; |
fc8cd66c | 2182 | SV *type; |
4e553d73 | 2183 | |
423cee85 | 2184 | if (!e) { |
5777a3f7 | 2185 | yyerror("Missing right brace on \\N{}"); |
423cee85 JH |
2186 | e = s - 1; |
2187 | goto cont_scan; | |
2188 | } | |
dbc0d4f2 JH |
2189 | if (e > s + 2 && s[1] == 'U' && s[2] == '+') { |
2190 | /* \N{U+...} */ | |
2191 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | | |
2192 | PERL_SCAN_DISALLOW_PREFIX; | |
2193 | s += 3; | |
2194 | len = e - s; | |
2195 | uv = grok_hex(s, &len, &flags, NULL); | |
b57a0404 JH |
2196 | if ( e > s && len != (STRLEN)(e - s) ) { |
2197 | uv = 0xFFFD; | |
fc8cd66c | 2198 | } |
dbc0d4f2 JH |
2199 | s = e + 1; |
2200 | goto NUM_ESCAPE_INSERT; | |
2201 | } | |
55eda711 | 2202 | res = newSVpvn(s + 1, e - s - 1); |
fc8cd66c | 2203 | type = newSVpvn(s - 2,e - s + 3); |
bd61b366 | 2204 | res = new_constant( NULL, 0, "charnames", |
fc8cd66c YO |
2205 | res, NULL, SvPVX(type) ); |
2206 | SvREFCNT_dec(type); | |
f9a63242 JH |
2207 | if (has_utf8) |
2208 | sv_utf8_upgrade(res); | |
cfd0369c | 2209 | str = SvPV_const(res,len); |
1c47067b JH |
2210 | #ifdef EBCDIC_NEVER_MIND |
2211 | /* charnames uses pack U and that has been | |
2212 | * recently changed to do the below uni->native | |
2213 | * mapping, so this would be redundant (and wrong, | |
2214 | * the code point would be doubly converted). | |
2215 | * But leave this in just in case the pack U change | |
2216 | * gets revoked, but the semantics is still | |
2217 | * desireable for charnames. --jhi */ | |
cddc7ef4 | 2218 | { |
cfd0369c | 2219 | UV uv = utf8_to_uvchr((const U8*)str, 0); |
cddc7ef4 JH |
2220 | |
2221 | if (uv < 0x100) { | |
89ebb4a3 | 2222 | U8 tmpbuf[UTF8_MAXBYTES+1], *d; |
cddc7ef4 JH |
2223 | |
2224 | d = uvchr_to_utf8(tmpbuf, UNI_TO_NATIVE(uv)); | |
2225 | sv_setpvn(res, (char *)tmpbuf, d - tmpbuf); | |
cfd0369c | 2226 | str = SvPV_const(res, len); |
cddc7ef4 JH |
2227 | } |
2228 | } | |
2229 | #endif | |
89491803 | 2230 | if (!has_utf8 && SvUTF8(res)) { |
9d4ba2ae | 2231 | const char * const ostart = SvPVX_const(sv); |
f08d6ad9 GS |
2232 | SvCUR_set(sv, d - ostart); |
2233 | SvPOK_on(sv); | |
e4f3eed8 | 2234 | *d = '\0'; |
f08d6ad9 | 2235 | sv_utf8_upgrade(sv); |
d2f449dd | 2236 | /* this just broke our allocation above... */ |
eb160463 | 2237 | SvGROW(sv, (STRLEN)(send - start)); |
f08d6ad9 | 2238 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 2239 | has_utf8 = TRUE; |
f08d6ad9 | 2240 | } |
eb160463 | 2241 | if (len > (STRLEN)(e - s + 4)) { /* I _guess_ 4 is \N{} --jhi */ |
9d4ba2ae | 2242 | const char * const odest = SvPVX_const(sv); |
423cee85 | 2243 | |
8973db79 | 2244 | SvGROW(sv, (SvLEN(sv) + len - (e - s + 4))); |
423cee85 JH |
2245 | d = SvPVX(sv) + (d - odest); |
2246 | } | |
e294cc5d JH |
2247 | #ifdef EBCDIC |
2248 | if (!dorange) | |
2249 | native_range = FALSE; /* \N{} is guessed to be Unicode */ | |
2250 | #endif | |
423cee85 JH |
2251 | Copy(str, d, len, char); |
2252 | d += len; | |
2253 | SvREFCNT_dec(res); | |
2254 | cont_scan: | |
2255 | s = e + 1; | |
2256 | } | |
2257 | else | |
5777a3f7 | 2258 | yyerror("Missing braces on \\N{}"); |
423cee85 JH |
2259 | continue; |
2260 | ||
02aa26ce | 2261 | /* \c is a control character */ |
79072805 LW |
2262 | case 'c': |
2263 | s++; | |
961ce445 | 2264 | if (s < send) { |
ba210ebe | 2265 | U8 c = *s++; |
c7f1f016 NIS |
2266 | #ifdef EBCDIC |
2267 | if (isLOWER(c)) | |
2268 | c = toUPPER(c); | |
2269 | #endif | |
db42d148 | 2270 | *d++ = NATIVE_TO_NEED(has_utf8,toCTRL(c)); |
ba210ebe | 2271 | } |
961ce445 RGS |
2272 | else { |
2273 | yyerror("Missing control char name in \\c"); | |
2274 | } | |
79072805 | 2275 | continue; |
02aa26ce NT |
2276 | |
2277 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 | 2278 | case 'b': |
db42d148 | 2279 | *d++ = NATIVE_TO_NEED(has_utf8,'\b'); |
79072805 LW |
2280 | break; |
2281 | case 'n': | |
db42d148 | 2282 | *d++ = NATIVE_TO_NEED(has_utf8,'\n'); |
79072805 LW |
2283 | break; |
2284 | case 'r': | |
db42d148 | 2285 | *d++ = NATIVE_TO_NEED(has_utf8,'\r'); |
79072805 LW |
2286 | break; |
2287 | case 'f': | |
db42d148 | 2288 | *d++ = NATIVE_TO_NEED(has_utf8,'\f'); |
79072805 LW |
2289 | break; |
2290 | case 't': | |
db42d148 | 2291 | *d++ = NATIVE_TO_NEED(has_utf8,'\t'); |
79072805 | 2292 | break; |
34a3fe2a | 2293 | case 'e': |
db42d148 | 2294 | *d++ = ASCII_TO_NEED(has_utf8,'\033'); |
34a3fe2a PP |
2295 | break; |
2296 | case 'a': | |
db42d148 | 2297 | *d++ = ASCII_TO_NEED(has_utf8,'\007'); |
79072805 | 2298 | break; |
02aa26ce NT |
2299 | } /* end switch */ |
2300 | ||
79072805 LW |
2301 | s++; |
2302 | continue; | |
02aa26ce | 2303 | } /* end if (backslash) */ |
4c3a8340 TS |
2304 | #ifdef EBCDIC |
2305 | else | |
2306 | literal_endpoint++; | |
2307 | #endif | |
02aa26ce | 2308 | |
f9a63242 | 2309 | default_action: |
2b9d42f0 NIS |
2310 | /* If we started with encoded form, or already know we want it |
2311 | and then encode the next character */ | |
2312 | if ((has_utf8 || this_utf8) && !NATIVE_IS_INVARIANT((U8)(*s))) { | |
2313 | STRLEN len = 1; | |
5f66b61c AL |
2314 | const UV nextuv = (this_utf8) ? utf8n_to_uvchr((U8*)s, send - s, &len, 0) : (UV) ((U8) *s); |
2315 | const STRLEN need = UNISKIP(NATIVE_TO_UNI(nextuv)); | |
2b9d42f0 NIS |
2316 | s += len; |
2317 | if (need > len) { | |
2318 | /* encoded value larger than old, need extra space (NOTE: SvCUR() not set here) */ | |
9d4ba2ae | 2319 | const STRLEN off = d - SvPVX_const(sv); |
2b9d42f0 NIS |
2320 | d = SvGROW(sv, SvLEN(sv) + (need-len)) + off; |
2321 | } | |
5f66b61c | 2322 | d = (char*)uvchr_to_utf8((U8*)d, nextuv); |
2b9d42f0 | 2323 | has_utf8 = TRUE; |
e294cc5d JH |
2324 | #ifdef EBCDIC |
2325 | if (uv > 255 && !dorange) | |
2326 | native_range = FALSE; | |
2327 | #endif | |
2b9d42f0 NIS |
2328 | } |
2329 | else { | |
2330 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
2331 | } | |
02aa26ce NT |
2332 | } /* while loop to process each character */ |
2333 | ||
2334 | /* terminate the string and set up the sv */ | |
79072805 | 2335 | *d = '\0'; |
95a20fc0 | 2336 | SvCUR_set(sv, d - SvPVX_const(sv)); |
2b9d42f0 | 2337 | if (SvCUR(sv) >= SvLEN(sv)) |
d0063567 | 2338 | Perl_croak(aTHX_ "panic: constant overflowed allocated space"); |
2b9d42f0 | 2339 | |
79072805 | 2340 | SvPOK_on(sv); |
9f4817db | 2341 | if (PL_encoding && !has_utf8) { |
d0063567 DK |
2342 | sv_recode_to_utf8(sv, PL_encoding); |
2343 | if (SvUTF8(sv)) | |
2344 | has_utf8 = TRUE; | |
9f4817db | 2345 | } |
2b9d42f0 | 2346 | if (has_utf8) { |
7e2040f0 | 2347 | SvUTF8_on(sv); |
2b9d42f0 | 2348 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
d0063567 | 2349 | PL_sublex_info.sub_op->op_private |= |
2b9d42f0 NIS |
2350 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); |
2351 | } | |
2352 | } | |
79072805 | 2353 | |
02aa26ce | 2354 | /* shrink the sv if we allocated more than we used */ |
79072805 | 2355 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
1da4ca5f | 2356 | SvPV_shrink_to_cur(sv); |
79072805 | 2357 | } |
02aa26ce | 2358 | |
9b599b2a | 2359 | /* return the substring (via yylval) only if we parsed anything */ |
3280af22 NIS |
2360 | if (s > PL_bufptr) { |
2361 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) | |
10edeb5d JH |
2362 | sv = new_constant(start, s - start, |
2363 | (const char *)(PL_lex_inpat ? "qr" : "q"), | |
a0714e2c | 2364 | sv, NULL, |
10edeb5d JH |
2365 | (const char *) |
2366 | (( PL_lex_inwhat == OP_TRANS | |
2367 | ? "tr" | |
2368 | : ( (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) | |
2369 | ? "s" | |
2370 | : "qq")))); | |
79072805 | 2371 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 2372 | } else |
8990e307 | 2373 | SvREFCNT_dec(sv); |
79072805 LW |
2374 | return s; |
2375 | } | |
2376 | ||
ffb4593c NT |
2377 | /* S_intuit_more |
2378 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
2379 | * FALSE otherwise. | |
ffb4593c NT |
2380 | * |
2381 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
2382 | * | |
2383 | * ->[ and ->{ return TRUE | |
2384 | * { and [ outside a pattern are always subscripts, so return TRUE | |
2385 | * if we're outside a pattern and it's not { or [, then return FALSE | |
2386 | * if we're in a pattern and the first char is a { | |
2387 | * {4,5} (any digits around the comma) returns FALSE | |
2388 | * if we're in a pattern and the first char is a [ | |
2389 | * [] returns FALSE | |
2390 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
2391 | * character class or not. It has to deal with things like | |
2392 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
2393 | * anything else returns TRUE | |
2394 | */ | |
2395 | ||
9cbb5ea2 GS |
2396 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
2397 | ||
76e3520e | 2398 | STATIC int |
cea2e8a9 | 2399 | S_intuit_more(pTHX_ register char *s) |
79072805 | 2400 | { |
97aff369 | 2401 | dVAR; |
3280af22 | 2402 | if (PL_lex_brackets) |
79072805 LW |
2403 | return TRUE; |
2404 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
2405 | return TRUE; | |
2406 | if (*s != '{' && *s != '[') | |
2407 | return FALSE; | |
3280af22 | 2408 | if (!PL_lex_inpat) |
79072805 LW |
2409 | return TRUE; |
2410 | ||
2411 | /* In a pattern, so maybe we have {n,m}. */ | |
2412 | if (*s == '{') { | |
2413 | s++; | |
2414 | if (!isDIGIT(*s)) | |
2415 | return TRUE; | |
2416 | while (isDIGIT(*s)) | |
2417 | s++; | |
2418 | if (*s == ',') | |
2419 | s++; | |
2420 | while (isDIGIT(*s)) | |
2421 | s++; | |
2422 | if (*s == '}') | |
2423 | return FALSE; | |
2424 | return TRUE; | |
2425 | ||
2426 | } | |
2427 | ||
2428 | /* On the other hand, maybe we have a character class */ | |
2429 | ||
2430 | s++; | |
2431 | if (*s == ']' || *s == '^') | |
2432 | return FALSE; | |
2433 | else { | |
ffb4593c | 2434 | /* this is terrifying, and it works */ |
79072805 LW |
2435 | int weight = 2; /* let's weigh the evidence */ |
2436 | char seen[256]; | |
f27ffc4a | 2437 | unsigned char un_char = 255, last_un_char; |
9d4ba2ae | 2438 | const char * const send = strchr(s,']'); |
3280af22 | 2439 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
2440 | |
2441 | if (!send) /* has to be an expression */ | |
2442 | return TRUE; | |
2443 | ||
2444 | Zero(seen,256,char); | |
2445 | if (*s == '$') | |
2446 | weight -= 3; | |
2447 | else if (isDIGIT(*s)) { | |
2448 | if (s[1] != ']') { | |
2449 | if (isDIGIT(s[1]) && s[2] == ']') | |
2450 | weight -= 10; | |
2451 | } | |
2452 | else | |
2453 | weight -= 100; | |
2454 | } | |
2455 | for (; s < send; s++) { | |
2456 | last_un_char = un_char; | |
2457 | un_char = (unsigned char)*s; | |
2458 | switch (*s) { | |
2459 | case '@': | |
2460 | case '&': | |
2461 | case '$': | |
2462 | weight -= seen[un_char] * 10; | |
7e2040f0 | 2463 | if (isALNUM_lazy_if(s+1,UTF)) { |
90e5519e | 2464 | int len; |
8903cb82 | 2465 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
90e5519e NC |
2466 | len = (int)strlen(tmpbuf); |
2467 | if (len > 1 && gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PV)) | |
79072805 LW |
2468 | weight -= 100; |
2469 | else | |
2470 | weight -= 10; | |
2471 | } | |
2472 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
2473 | strchr("[#!%*<>()-=",s[1])) { |
2474 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
2475 | weight -= 10; |
2476 | else | |
2477 | weight -= 1; | |
2478 | } | |
2479 | break; | |
2480 | case '\\': | |
2481 | un_char = 254; | |
2482 | if (s[1]) { | |
93a17b20 | 2483 | if (strchr("wds]",s[1])) |
79072805 | 2484 | weight += 100; |
10edeb5d | 2485 | else if (seen[(U8)'\''] || seen[(U8)'"']) |
79072805 | 2486 | weight += 1; |
93a17b20 | 2487 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
2488 | weight += 40; |
2489 | else if (isDIGIT(s[1])) { | |
2490 | weight += 40; | |
2491 | while (s[1] && isDIGIT(s[1])) | |
2492 | s++; | |
2493 | } | |
2494 | } | |
2495 | else | |
2496 | weight += 100; | |
2497 | break; | |
2498 | case '-': | |
2499 | if (s[1] == '\\') | |
2500 | weight += 50; | |
93a17b20 | 2501 | if (strchr("aA01! ",last_un_char)) |
79072805 | 2502 | weight += 30; |
93a17b20 | 2503 | if (strchr("zZ79~",s[1])) |
79072805 | 2504 | weight += 30; |
f27ffc4a GS |
2505 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
2506 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
2507 | break; |
2508 | default: | |
3792a11b NC |
2509 | if (!isALNUM(last_un_char) |
2510 | && !(last_un_char == '$' || last_un_char == '@' | |
2511 | || last_un_char == '&') | |
2512 | && isALPHA(*s) && s[1] && isALPHA(s[1])) { | |
79072805 LW |
2513 | char *d = tmpbuf; |
2514 | while (isALPHA(*s)) | |
2515 | *d++ = *s++; | |
2516 | *d = '\0'; | |
5458a98a | 2517 | if (keyword(tmpbuf, d - tmpbuf, 0)) |
79072805 LW |
2518 | weight -= 150; |
2519 | } | |
2520 | if (un_char == last_un_char + 1) | |
2521 | weight += 5; | |
2522 | weight -= seen[un_char]; | |
2523 | break; | |
2524 | } | |
2525 | seen[un_char]++; | |
2526 | } | |
2527 | if (weight >= 0) /* probably a character class */ | |
2528 | return FALSE; | |
2529 | } | |
2530 | ||
2531 | return TRUE; | |
2532 | } | |
ffed7fef | 2533 | |
ffb4593c NT |
2534 | /* |
2535 | * S_intuit_method | |
2536 | * | |
2537 | * Does all the checking to disambiguate | |
2538 | * foo bar | |
2539 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
2540 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
2541 | * | |
2542 | * First argument is the stuff after the first token, e.g. "bar". | |
2543 | * | |
2544 | * Not a method if bar is a filehandle. | |
2545 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
2546 | * Not a method if it's really "Foo $bar" | |
2547 | * Method if it's "foo $bar" | |
2548 | * Not a method if it's really "print foo $bar" | |
2549 | * Method if it's really "foo package::" (interpreted as package->foo) | |
8f8cf39c | 2550 | * Not a method if bar is known to be a subroutine ("sub bar; foo bar") |
3cb0bbe5 | 2551 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
2552 | * => |
2553 | */ | |
2554 | ||
76e3520e | 2555 | STATIC int |
62d55b22 | 2556 | S_intuit_method(pTHX_ char *start, GV *gv, CV *cv) |
a0d0e21e | 2557 | { |
97aff369 | 2558 | dVAR; |
a0d0e21e | 2559 | char *s = start + (*start == '$'); |
3280af22 | 2560 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
2561 | STRLEN len; |
2562 | GV* indirgv; | |
5db06880 NC |
2563 | #ifdef PERL_MAD |
2564 | int soff; | |
2565 | #endif | |
a0d0e21e LW |
2566 | |
2567 | if (gv) { | |
62d55b22 | 2568 | if (SvTYPE(gv) == SVt_PVGV && GvIO(gv)) |
a0d0e21e | 2569 | return 0; |
62d55b22 NC |
2570 | if (cv) { |
2571 | if (SvPOK(cv)) { | |
2572 | const char *proto = SvPVX_const(cv); | |
2573 | if (proto) { | |
2574 | if (*proto == ';') | |
2575 | proto++; | |
2576 | if (*proto == '*') | |
2577 | return 0; | |
2578 | } | |
b6c543e3 IZ |
2579 | } |
2580 | } else | |
c35e046a | 2581 | gv = NULL; |
a0d0e21e | 2582 | } |
8903cb82 | 2583 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
2584 | /* start is the beginning of the possible filehandle/object, |
2585 | * and s is the end of it | |
2586 | * tmpbuf is a copy of it | |
2587 | */ | |
2588 | ||
a0d0e21e | 2589 | if (*start == '$') { |
3280af22 | 2590 | if (gv || PL_last_lop_op == OP_PRINT || isUPPER(*PL_tokenbuf)) |
a0d0e21e | 2591 | return 0; |
5db06880 NC |
2592 | #ifdef PERL_MAD |
2593 | len = start - SvPVX(PL_linestr); | |
2594 | #endif | |
29595ff2 | 2595 | s = PEEKSPACE(s); |
f0092767 | 2596 | #ifdef PERL_MAD |
5db06880 NC |
2597 | start = SvPVX(PL_linestr) + len; |
2598 | #endif | |
3280af22 NIS |
2599 | PL_bufptr = start; |
2600 | PL_expect = XREF; | |
a0d0e21e LW |
2601 | return *s == '(' ? FUNCMETH : METHOD; |
2602 | } | |
5458a98a | 2603 | if (!keyword(tmpbuf, len, 0)) { |
c3e0f903 GS |
2604 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
2605 | len -= 2; | |
2606 | tmpbuf[len] = '\0'; | |
5db06880 NC |
2607 | #ifdef PERL_MAD |
2608 | soff = s - SvPVX(PL_linestr); | |
2609 | #endif | |
c3e0f903 GS |
2610 | goto bare_package; |
2611 | } | |
90e5519e | 2612 | indirgv = gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PVCV); |
8ebc5c01 | 2613 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
2614 | return 0; |
2615 | /* filehandle or package name makes it a method */ | |
89bfa8cd | 2616 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) { |
5db06880 NC |
2617 | #ifdef PERL_MAD |
2618 | soff = s - SvPVX(PL_linestr); | |
2619 | #endif | |
29595ff2 | 2620 | s = PEEKSPACE(s); |
3280af22 | 2621 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 2622 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 2623 | bare_package: |
cd81e915 | 2624 | start_force(PL_curforce); |
9ded7720 | 2625 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, |
79cb57f6 | 2626 | newSVpvn(tmpbuf,len)); |
9ded7720 | 2627 | NEXTVAL_NEXTTOKE.opval->op_private = OPpCONST_BARE; |
5db06880 NC |
2628 | if (PL_madskills) |
2629 | curmad('X', newSVpvn(start,SvPVX(PL_linestr) + soff - start)); | |
3280af22 | 2630 | PL_expect = XTERM; |
a0d0e21e | 2631 | force_next(WORD); |
3280af22 | 2632 | PL_bufptr = s; |
5db06880 NC |
2633 | #ifdef PERL_MAD |
2634 | PL_bufptr = SvPVX(PL_linestr) + soff; /* restart before space */ | |
2635 | #endif | |
a0d0e21e LW |
2636 | return *s == '(' ? FUNCMETH : METHOD; |
2637 | } | |
2638 | } | |
2639 | return 0; | |
2640 | } | |
2641 | ||
ffb4593c NT |
2642 | /* |
2643 | * S_incl_perldb | |
2644 | * Return a string of Perl code to load the debugger. If PERL5DB | |
2645 | * is set, it will return the contents of that, otherwise a | |
2646 | * compile-time require of perl5db.pl. | |
2647 | */ | |
2648 | ||
bfed75c6 | 2649 | STATIC const char* |
cea2e8a9 | 2650 | S_incl_perldb(pTHX) |
a0d0e21e | 2651 | { |
97aff369 | 2652 | dVAR; |
3280af22 | 2653 | if (PL_perldb) { |
9d4ba2ae | 2654 | const char * const pdb = PerlEnv_getenv("PERL5DB"); |
a0d0e21e LW |
2655 | |
2656 | if (pdb) | |
2657 | return pdb; | |
93189314 | 2658 | SETERRNO(0,SS_NORMAL); |
a0d0e21e LW |
2659 | return "BEGIN { require 'perl5db.pl' }"; |
2660 | } | |
2661 | return ""; | |
2662 | } | |
2663 | ||
2664 | ||
16d20bd9 | 2665 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 2666 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
2667 | * Note that the filter function only applies to the current source file |
2668 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
2669 | * | |
2670 | * The datasv parameter (which may be NULL) can be used to pass | |
2671 | * private data to this instance of the filter. The filter function | |
2672 | * can recover the SV using the FILTER_DATA macro and use it to | |
2673 | * store private buffers and state information. | |
2674 | * | |
2675 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 2676 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 2677 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
2678 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
2679 | * private use must be set using malloc'd pointers. | |
2680 | */ | |
16d20bd9 AD |
2681 | |
2682 | SV * | |
864dbfa3 | 2683 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 2684 | { |
97aff369 | 2685 | dVAR; |
f4c556ac | 2686 | if (!funcp) |
a0714e2c | 2687 | return NULL; |
f4c556ac | 2688 | |
3280af22 NIS |
2689 | if (!PL_rsfp_filters) |
2690 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 2691 | if (!datasv) |
561b68a9 | 2692 | datasv = newSV(0); |
862a34c6 | 2693 | SvUPGRADE(datasv, SVt_PVIO); |
8141890a | 2694 | IoANY(datasv) = FPTR2DPTR(void *, funcp); /* stash funcp into spare field */ |
e0c19803 | 2695 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac | 2696 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
55662e27 JH |
2697 | FPTR2DPTR(void *, IoANY(datasv)), |
2698 | SvPV_nolen(datasv))); | |
3280af22 NIS |
2699 | av_unshift(PL_rsfp_filters, 1); |
2700 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
2701 | return(datasv); |
2702 | } | |
4e553d73 | 2703 | |
16d20bd9 AD |
2704 | |
2705 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 2706 | void |
864dbfa3 | 2707 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 2708 | { |
97aff369 | 2709 | dVAR; |
e0c19803 | 2710 | SV *datasv; |
24801a4b | 2711 | |
33073adb | 2712 | #ifdef DEBUGGING |
55662e27 JH |
2713 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", |
2714 | FPTR2DPTR(void*, funcp))); | |
33073adb | 2715 | #endif |
3280af22 | 2716 | if (!PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
2717 | return; |
2718 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 2719 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
8141890a | 2720 | if (IoANY(datasv) == FPTR2DPTR(void *, funcp)) { |
e0c19803 | 2721 | IoFLAGS(datasv) &= ~IOf_FAKE_DIRP; |
4755096e | 2722 | IoANY(datasv) = (void *)NULL; |
3280af22 | 2723 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 2724 | |
16d20bd9 AD |
2725 | return; |
2726 | } | |
2727 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 2728 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
2729 | } |
2730 | ||
2731 | ||
1de9afcd RGS |
2732 | /* Invoke the idxth filter function for the current rsfp. */ |
2733 | /* maxlen 0 = read one text line */ | |
16d20bd9 | 2734 | I32 |
864dbfa3 | 2735 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
a0d0e21e | 2736 | { |
97aff369 | 2737 | dVAR; |
16d20bd9 AD |
2738 | filter_t funcp; |
2739 | SV *datasv = NULL; | |
f482118e NC |
2740 | /* This API is bad. It should have been using unsigned int for maxlen. |
2741 | Not sure if we want to change the API, but if not we should sanity | |
2742 | check the value here. */ | |
39cd7a59 NC |
2743 | const unsigned int correct_length |
2744 | = maxlen < 0 ? | |
2745 | #ifdef PERL_MICRO | |
2746 | 0x7FFFFFFF | |
2747 | #else | |
2748 | INT_MAX | |
2749 | #endif | |
2750 | : maxlen; | |
e50aee73 | 2751 | |
3280af22 | 2752 | if (!PL_rsfp_filters) |
16d20bd9 | 2753 | return -1; |
1de9afcd | 2754 | if (idx > AvFILLp(PL_rsfp_filters)) { /* Any more filters? */ |
16d20bd9 AD |
2755 | /* Provide a default input filter to make life easy. */ |
2756 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
2757 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2758 | "filter_read %d: from rsfp\n", idx)); | |
f482118e | 2759 | if (correct_length) { |
16d20bd9 AD |
2760 | /* Want a block */ |
2761 | int len ; | |
f54cb97a | 2762 | const int old_len = SvCUR(buf_sv); |
16d20bd9 AD |
2763 | |
2764 | /* ensure buf_sv is large enough */ | |
f482118e NC |
2765 | SvGROW(buf_sv, (STRLEN)(old_len + correct_length)) ; |
2766 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, | |
2767 | correct_length)) <= 0) { | |
3280af22 | 2768 | if (PerlIO_error(PL_rsfp)) |
37120919 AD |
2769 | return -1; /* error */ |
2770 | else | |
2771 | return 0 ; /* end of file */ | |
2772 | } | |
16d20bd9 AD |
2773 | SvCUR_set(buf_sv, old_len + len) ; |
2774 | } else { | |
2775 | /* Want a line */ | |
3280af22 NIS |
2776 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
2777 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
2778 | return -1; /* error */ |
2779 | else | |
2780 | return 0 ; /* end of file */ | |
2781 | } | |
16d20bd9 AD |
2782 | } |
2783 | return SvCUR(buf_sv); | |
2784 | } | |
2785 | /* Skip this filter slot if filter has been deleted */ | |
1de9afcd | 2786 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef) { |
f4c556ac GS |
2787 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2788 | "filter_read %d: skipped (filter deleted)\n", | |
2789 | idx)); | |
f482118e | 2790 | return FILTER_READ(idx+1, buf_sv, correct_length); /* recurse */ |
16d20bd9 AD |
2791 | } |
2792 | /* Get function pointer hidden within datasv */ | |
8141890a | 2793 | funcp = DPTR2FPTR(filter_t, IoANY(datasv)); |
f4c556ac GS |
2794 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2795 | "filter_read %d: via function %p (%s)\n", | |
ca0270c4 | 2796 | idx, (void*)datasv, SvPV_nolen_const(datasv))); |
16d20bd9 AD |
2797 | /* Call function. The function is expected to */ |
2798 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 2799 | /* Return: <0:error, =0:eof, >0:not eof */ |
f482118e | 2800 | return (*funcp)(aTHX_ idx, buf_sv, correct_length); |
16d20bd9 AD |
2801 | } |
2802 | ||
76e3520e | 2803 | STATIC char * |
cea2e8a9 | 2804 | S_filter_gets(pTHX_ register SV *sv, register PerlIO *fp, STRLEN append) |
16d20bd9 | 2805 | { |
97aff369 | 2806 | dVAR; |
c39cd008 | 2807 | #ifdef PERL_CR_FILTER |
3280af22 | 2808 | if (!PL_rsfp_filters) { |
c39cd008 | 2809 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
2810 | } |
2811 | #endif | |
3280af22 | 2812 | if (PL_rsfp_filters) { |
55497cff | 2813 | if (!append) |
2814 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
2815 | if (FILTER_READ(0, sv, 0) > 0) |
2816 | return ( SvPVX(sv) ) ; | |
2817 | else | |
bd61b366 | 2818 | return NULL ; |
16d20bd9 | 2819 | } |
9d116dd7 | 2820 | else |
fd049845 | 2821 | return (sv_gets(sv, fp, append)); |
a0d0e21e LW |
2822 | } |
2823 | ||
01ec43d0 | 2824 | STATIC HV * |
7fc63493 | 2825 | S_find_in_my_stash(pTHX_ const char *pkgname, I32 len) |
def3634b | 2826 | { |
97aff369 | 2827 | dVAR; |
def3634b GS |
2828 | GV *gv; |
2829 | ||
01ec43d0 | 2830 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
2831 | return PL_curstash; |
2832 | ||
2833 | if (len > 2 && | |
2834 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
90e5519e | 2835 | (gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVHV))) |
01ec43d0 GS |
2836 | { |
2837 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
2838 | } |
2839 | ||
2840 | /* use constant CLASS => 'MyClass' */ | |
c35e046a AL |
2841 | gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVCV); |
2842 | if (gv && GvCV(gv)) { | |
2843 | SV * const sv = cv_const_sv(GvCV(gv)); | |
2844 | if (sv) | |
83003860 | 2845 | pkgname = SvPV_nolen_const(sv); |
def3634b GS |
2846 | } |
2847 | ||
2848 | return gv_stashpv(pkgname, FALSE); | |
2849 | } | |
a0d0e21e | 2850 | |
5db06880 NC |
2851 | #ifdef PERL_MAD |
2852 | /* | |
2853 | * Perl_madlex | |
2854 | * The intent of this yylex wrapper is to minimize the changes to the | |
2855 | * tokener when we aren't interested in collecting madprops. It remains | |
2856 | * to be seen how successful this strategy will be... | |
2857 | */ | |
2858 | ||
2859 | int | |
2860 | Perl_madlex(pTHX) | |
2861 | { | |
2862 | int optype; | |
2863 | char *s = PL_bufptr; | |
2864 | ||
cd81e915 NC |
2865 | /* make sure PL_thiswhite is initialized */ |
2866 | PL_thiswhite = 0; | |
2867 | PL_thismad = 0; | |
5db06880 | 2868 | |
cd81e915 | 2869 | /* just do what yylex would do on pending identifier; leave PL_thiswhite alone */ |
5db06880 NC |
2870 | if (PL_pending_ident) |
2871 | return S_pending_ident(aTHX); | |
2872 | ||
2873 | /* previous token ate up our whitespace? */ | |
cd81e915 NC |
2874 | if (!PL_lasttoke && PL_nextwhite) { |
2875 | PL_thiswhite = PL_nextwhite; | |
2876 | PL_nextwhite = 0; | |
5db06880 NC |
2877 | } |
2878 | ||
2879 | /* isolate the token, and figure out where it is without whitespace */ | |
cd81e915 NC |
2880 | PL_realtokenstart = -1; |
2881 | PL_thistoken = 0; | |
5db06880 NC |
2882 | optype = yylex(); |
2883 | s = PL_bufptr; | |
cd81e915 | 2884 | assert(PL_curforce < 0); |
5db06880 | 2885 | |
cd81e915 NC |
2886 | if (!PL_thismad || PL_thismad->mad_key == '^') { /* not forced already? */ |
2887 | if (!PL_thistoken) { | |
2888 | if (PL_realtokenstart < 0 || !CopLINE(PL_curcop)) | |
6b29d1f5 | 2889 | PL_thistoken = newSVpvs(""); |
5db06880 | 2890 | else { |
c35e046a | 2891 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 | 2892 | PL_thistoken = newSVpvn(tstart, s - tstart); |
5db06880 NC |
2893 | } |
2894 | } | |
cd81e915 NC |
2895 | if (PL_thismad) /* install head */ |
2896 | CURMAD('X', PL_thistoken); | |
5db06880 NC |
2897 | } |
2898 | ||
2899 | /* last whitespace of a sublex? */ | |
cd81e915 NC |
2900 | if (optype == ')' && PL_endwhite) { |
2901 | CURMAD('X', PL_endwhite); | |
5db06880 NC |
2902 | } |
2903 | ||
cd81e915 | 2904 | if (!PL_thismad) { |
5db06880 NC |
2905 | |
2906 | /* if no whitespace and we're at EOF, bail. Otherwise fake EOF below. */ | |
cd81e915 NC |
2907 | if (!PL_thiswhite && !PL_endwhite && !optype) { |
2908 | sv_free(PL_thistoken); | |
2909 | PL_thistoken = 0; | |
5db06880 NC |
2910 | return 0; |
2911 | } | |
2912 | ||
2913 | /* put off final whitespace till peg */ | |
2914 | if (optype == ';' && !PL_rsfp) { | |
cd81e915 NC |
2915 | PL_nextwhite = PL_thiswhite; |
2916 | PL_thiswhite = 0; | |
5db06880 | 2917 | } |
cd81e915 NC |
2918 | else if (PL_thisopen) { |
2919 | CURMAD('q', PL_thisopen); | |
2920 | if (PL_thistoken) | |
2921 | sv_free(PL_thistoken); | |
2922 | PL_thistoken = 0; | |
5db06880 NC |
2923 | } |
2924 | else { | |
2925 | /* Store actual token text as madprop X */ | |
cd81e915 | 2926 | CURMAD('X', PL_thistoken); |
5db06880 NC |
2927 | } |
2928 | ||
cd81e915 | 2929 | if (PL_thiswhite) { |
5db06880 | 2930 | /* add preceding whitespace as madprop _ */ |
cd81e915 | 2931 | CURMAD('_', PL_thiswhite); |
5db06880 NC |
2932 | } |
2933 | ||
cd81e915 | 2934 | if (PL_thisstuff) { |
5db06880 | 2935 | /* add quoted material as madprop = */ |
cd81e915 | 2936 | CURMAD('=', PL_thisstuff); |
5db06880 NC |
2937 | } |
2938 | ||
cd81e915 | 2939 | if (PL_thisclose) { |
5db06880 | 2940 | /* add terminating quote as madprop Q */ |
cd81e915 | 2941 | CURMAD('Q', PL_thisclose); |
5db06880 NC |
2942 | } |
2943 | } | |
2944 | ||
2945 | /* special processing based on optype */ | |
2946 | ||
2947 | switch (optype) { | |
2948 | ||
2949 | /* opval doesn't need a TOKEN since it can already store mp */ | |
2950 | case WORD: | |
2951 | case METHOD: | |
2952 | case FUNCMETH: | |
2953 | case THING: | |
2954 | case PMFUNC: | |
2955 | case PRIVATEREF: | |
2956 | case FUNC0SUB: | |
2957 | case UNIOPSUB: | |
2958 | case LSTOPSUB: | |
2959 | if (yylval.opval) | |
cd81e915 NC |
2960 | append_madprops(PL_thismad, yylval.opval, 0); |
2961 | PL_thismad = 0; | |
5db06880 NC |
2962 | return optype; |
2963 | ||
2964 | /* fake EOF */ | |
2965 | case 0: | |
2966 | optype = PEG; | |
cd81e915 NC |
2967 | if (PL_endwhite) { |
2968 | addmad(newMADsv('p', PL_endwhite), &PL_thismad, 0); | |
2969 | PL_endwhite = 0; | |
5db06880 NC |
2970 | } |
2971 | break; | |
2972 | ||
2973 | case ']': | |
2974 | case '}': | |
cd81e915 | 2975 | if (PL_faketokens) |
5db06880 NC |
2976 | break; |
2977 | /* remember any fake bracket that lexer is about to discard */ | |
2978 | if (PL_lex_brackets == 1 && | |
2979 | ((expectation)PL_lex_brackstack[0] & XFAKEBRACK)) | |
2980 | { | |
2981 | s = PL_bufptr; | |
2982 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
2983 | s++; | |
2984 | if (*s == '}') { | |
cd81e915 NC |
2985 | PL_thiswhite = newSVpvn(PL_bufptr, ++s - PL_bufptr); |
2986 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
2987 | PL_thiswhite = 0; | |
5db06880 NC |
2988 | PL_bufptr = s - 1; |
2989 | break; /* don't bother looking for trailing comment */ | |
2990 | } | |
2991 | else | |
2992 | s = PL_bufptr; | |
2993 | } | |
2994 | if (optype == ']') | |
2995 | break; | |
2996 | /* FALLTHROUGH */ | |
2997 | ||
2998 | /* attach a trailing comment to its statement instead of next token */ | |
2999 | case ';': | |
cd81e915 | 3000 | if (PL_faketokens) |
5db06880 NC |
3001 | break; |
3002 | if (PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == optype) { | |
3003 | s = PL_bufptr; | |
3004 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
3005 | s++; | |
3006 | if (*s == '\n' || *s == '#') { | |
3007 | while (s < PL_bufend && *s != '\n') | |
3008 | s++; | |
3009 | if (s < PL_bufend) | |
3010 | s++; | |
cd81e915 NC |
3011 | PL_thiswhite = newSVpvn(PL_bufptr, s - PL_bufptr); |
3012 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3013 | PL_thiswhite = 0; | |
5db06880 NC |
3014 | PL_bufptr = s; |
3015 | } | |
3016 | } | |
3017 | break; | |
3018 | ||
3019 | /* pval */ | |
3020 | case LABEL: | |
3021 | break; | |
3022 | ||
3023 | /* ival */ | |
3024 | default: | |
3025 | break; | |
3026 | ||
3027 | } | |
3028 | ||
3029 | /* Create new token struct. Note: opvals return early above. */ | |
cd81e915 NC |
3030 | yylval.tkval = newTOKEN(optype, yylval, PL_thismad); |
3031 | PL_thismad = 0; | |
5db06880 NC |
3032 | return optype; |
3033 | } | |
3034 | #endif | |
3035 | ||
468aa647 | 3036 | STATIC char * |
cc6ed77d | 3037 | S_tokenize_use(pTHX_ int is_use, char *s) { |
97aff369 | 3038 | dVAR; |
468aa647 RGS |
3039 | if (PL_expect != XSTATE) |
3040 | yyerror(Perl_form(aTHX_ "\"%s\" not allowed in expression", | |
3041 | is_use ? "use" : "no")); | |
29595ff2 | 3042 | s = SKIPSPACE1(s); |
468aa647 RGS |
3043 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { |
3044 | s = force_version(s, TRUE); | |
29595ff2 | 3045 | if (*s == ';' || (s = SKIPSPACE1(s), *s == ';')) { |
cd81e915 | 3046 | start_force(PL_curforce); |
9ded7720 | 3047 | NEXTVAL_NEXTTOKE.opval = NULL; |
468aa647 RGS |
3048 | force_next(WORD); |
3049 | } | |
3050 | else if (*s == 'v') { | |
3051 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3052 | s = force_version(s, FALSE); | |
3053 | } | |
3054 | } | |
3055 | else { | |
3056 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3057 | s = force_version(s, FALSE); | |
3058 | } | |
3059 | yylval.ival = is_use; | |
3060 | return s; | |
3061 | } | |
748a9306 | 3062 | #ifdef DEBUGGING |
27da23d5 | 3063 | static const char* const exp_name[] = |
09bef843 | 3064 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
27308ded | 3065 | "ATTRTERM", "TERMBLOCK", "TERMORDORDOR" |
09bef843 | 3066 | }; |
748a9306 | 3067 | #endif |
463ee0b2 | 3068 | |
02aa26ce NT |
3069 | /* |
3070 | yylex | |
3071 | ||
3072 | Works out what to call the token just pulled out of the input | |
3073 | stream. The yacc parser takes care of taking the ops we return and | |
3074 | stitching them into a tree. | |
3075 | ||
3076 | Returns: | |
3077 | PRIVATEREF | |
3078 | ||
3079 | Structure: | |
3080 | if read an identifier | |
3081 | if we're in a my declaration | |
3082 | croak if they tried to say my($foo::bar) | |
3083 | build the ops for a my() declaration | |
3084 | if it's an access to a my() variable | |
3085 | are we in a sort block? | |
3086 | croak if my($a); $a <=> $b | |
3087 | build ops for access to a my() variable | |
3088 | if in a dq string, and they've said @foo and we can't find @foo | |
3089 | croak | |
3090 | build ops for a bareword | |
3091 | if we already built the token before, use it. | |
3092 | */ | |
3093 | ||
20141f0e | 3094 | |
dba4d153 JH |
3095 | #ifdef __SC__ |
3096 | #pragma segment Perl_yylex | |
3097 | #endif | |
dba4d153 | 3098 | int |
dba4d153 | 3099 | Perl_yylex(pTHX) |
20141f0e | 3100 | { |
97aff369 | 3101 | dVAR; |
3afc138a | 3102 | register char *s = PL_bufptr; |
378cc40b | 3103 | register char *d; |
463ee0b2 | 3104 | STRLEN len; |
aa7440fb | 3105 | bool bof = FALSE; |
a687059c | 3106 | |
10edeb5d JH |
3107 | /* orig_keyword, gvp, and gv are initialized here because |
3108 | * jump to the label just_a_word_zero can bypass their | |
3109 | * initialization later. */ | |
3110 | I32 orig_keyword = 0; | |
3111 | GV *gv = NULL; | |
3112 | GV **gvp = NULL; | |
3113 | ||
bbf60fe6 | 3114 | DEBUG_T( { |
396482e1 | 3115 | SV* tmp = newSVpvs(""); |
b6007c36 DM |
3116 | PerlIO_printf(Perl_debug_log, "### %"IVdf":LEX_%s/X%s %s\n", |
3117 | (IV)CopLINE(PL_curcop), | |
3118 | lex_state_names[PL_lex_state], | |
3119 | exp_name[PL_expect], | |
3120 | pv_display(tmp, s, strlen(s), 0, 60)); | |
3121 | SvREFCNT_dec(tmp); | |
bbf60fe6 | 3122 | } ); |
02aa26ce | 3123 | /* check if there's an identifier for us to look at */ |
ba979b31 | 3124 | if (PL_pending_ident) |
bbf60fe6 | 3125 | return REPORT(S_pending_ident(aTHX)); |
bbce6d69 | 3126 | |
02aa26ce NT |
3127 | /* no identifier pending identification */ |
3128 | ||
3280af22 | 3129 | switch (PL_lex_state) { |
79072805 LW |
3130 | #ifdef COMMENTARY |
3131 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
3132 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
3133 | break; | |
3134 | #endif | |
3135 | ||
09bef843 | 3136 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 3137 | case LEX_KNOWNEXT: |
5db06880 NC |
3138 | #ifdef PERL_MAD |
3139 | PL_lasttoke--; | |
3140 | yylval = PL_nexttoke[PL_lasttoke].next_val; | |
3141 | if (PL_madskills) { | |
cd81e915 | 3142 | PL_thismad = PL_nexttoke[PL_lasttoke].next_mad; |
5db06880 | 3143 | PL_nexttoke[PL_lasttoke].next_mad = 0; |
cd81e915 NC |
3144 | if (PL_thismad && PL_thismad->mad_key == '_') { |
3145 | PL_thiswhite = (SV*)PL_thismad->mad_val; | |
3146 | PL_thismad->mad_val = 0; | |
3147 | mad_free(PL_thismad); | |
3148 | PL_thismad = 0; | |
5db06880 NC |
3149 | } |
3150 | } | |
3151 | if (!PL_lasttoke) { | |
3152 | PL_lex_state = PL_lex_defer; | |
3153 | PL_expect = PL_lex_expect; | |
3154 | PL_lex_defer = LEX_NORMAL; | |
3155 | if (!PL_nexttoke[PL_lasttoke].next_type) | |
3156 | return yylex(); | |
3157 | } | |
3158 | #else | |
3280af22 | 3159 | PL_nexttoke--; |
5db06880 | 3160 | yylval = PL_nextval[PL_nexttoke]; |
3280af22 NIS |
3161 | if (!PL_nexttoke) { |
3162 | PL_lex_state = PL_lex_defer; | |
3163 | PL_expect = PL_lex_expect; | |
3164 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 3165 | } |
5db06880 NC |
3166 | #endif |
3167 | #ifdef PERL_MAD | |
3168 | /* FIXME - can these be merged? */ | |
3169 | return(PL_nexttoke[PL_lasttoke].next_type); | |
3170 | #else | |
bbf60fe6 | 3171 | return REPORT(PL_nexttype[PL_nexttoke]); |
5db06880 | 3172 | #endif |
79072805 | 3173 | |
02aa26ce | 3174 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 3175 | when we get here, PL_bufptr is at the \ |
02aa26ce | 3176 | */ |
79072805 LW |
3177 | case LEX_INTERPCASEMOD: |
3178 | #ifdef DEBUGGING | |
3280af22 | 3179 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 3180 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 3181 | #endif |
02aa26ce | 3182 | /* handle \E or end of string */ |
3280af22 | 3183 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
02aa26ce | 3184 | /* if at a \E */ |
3280af22 | 3185 | if (PL_lex_casemods) { |
f54cb97a | 3186 | const char oldmod = PL_lex_casestack[--PL_lex_casemods]; |
3280af22 | 3187 | PL_lex_casestack[PL_lex_casemods] = '\0'; |
02aa26ce | 3188 | |
3792a11b NC |
3189 | if (PL_bufptr != PL_bufend |
3190 | && (oldmod == 'L' || oldmod == 'U' || oldmod == 'Q')) { | |
3280af22 NIS |
3191 | PL_bufptr += 2; |
3192 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3193 | #ifdef PERL_MAD |
3194 | if (PL_madskills) | |
6b29d1f5 | 3195 | PL_thistoken = newSVpvs("\\E"); |
5db06880 | 3196 | #endif |
a0d0e21e | 3197 | } |
bbf60fe6 | 3198 | return REPORT(')'); |
79072805 | 3199 | } |
5db06880 NC |
3200 | #ifdef PERL_MAD |
3201 | while (PL_bufptr != PL_bufend && | |
3202 | PL_bufptr[0] == '\\' && PL_bufptr[1] == 'E') { | |
cd81e915 | 3203 | if (!PL_thiswhite) |
6b29d1f5 | 3204 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3205 | sv_catpvn(PL_thiswhite, PL_bufptr, 2); |
5db06880 NC |
3206 | PL_bufptr += 2; |
3207 | } | |
3208 | #else | |
3280af22 NIS |
3209 | if (PL_bufptr != PL_bufend) |
3210 | PL_bufptr += 2; | |
5db06880 | 3211 | #endif |
3280af22 | 3212 | PL_lex_state = LEX_INTERPCONCAT; |
cea2e8a9 | 3213 | return yylex(); |
79072805 LW |
3214 | } |
3215 | else { | |
607df283 | 3216 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3217 | "### Saw case modifier\n"); }); |
3280af22 | 3218 | s = PL_bufptr + 1; |
6e909404 | 3219 | if (s[1] == '\\' && s[2] == 'E') { |
5db06880 | 3220 | #ifdef PERL_MAD |
cd81e915 | 3221 | if (!PL_thiswhite) |
6b29d1f5 | 3222 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3223 | sv_catpvn(PL_thiswhite, PL_bufptr, 4); |
5db06880 | 3224 | #endif |
89122651 | 3225 | PL_bufptr = s + 3; |
6e909404 JH |
3226 | PL_lex_state = LEX_INTERPCONCAT; |
3227 | return yylex(); | |
a0d0e21e | 3228 | } |
6e909404 | 3229 | else { |
90771dc0 | 3230 | I32 tmp; |
5db06880 NC |
3231 | if (!PL_madskills) /* when just compiling don't need correct */ |
3232 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
3233 | tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */ | |
3792a11b | 3234 | if ((*s == 'L' || *s == 'U') && |
6e909404 JH |
3235 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) { |
3236 | PL_lex_casestack[--PL_lex_casemods] = '\0'; | |
bbf60fe6 | 3237 | return REPORT(')'); |
6e909404 JH |
3238 | } |
3239 | if (PL_lex_casemods > 10) | |
3240 | Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
3241 | PL_lex_casestack[PL_lex_casemods++] = *s; | |
3242 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
3243 | PL_lex_state = LEX_INTERPCONCAT; | |
cd81e915 | 3244 | start_force(PL_curforce); |
9ded7720 | 3245 | NEXTVAL_NEXTTOKE.ival = 0; |
6e909404 | 3246 | force_next('('); |
cd81e915 | 3247 | start_force(PL_curforce); |
6e909404 | 3248 | if (*s == 'l') |
9ded7720 | 3249 | NEXTVAL_NEXTTOKE.ival = OP_LCFIRST; |
6e909404 | 3250 | else if (*s == 'u') |
9ded7720 | 3251 | NEXTVAL_NEXTTOKE.ival = OP_UCFIRST; |
6e909404 | 3252 | else if (*s == 'L') |
9ded7720 | 3253 | NEXTVAL_NEXTTOKE.ival = OP_LC; |
6e909404 | 3254 | else if (*s == 'U') |
9ded7720 | 3255 | NEXTVAL_NEXTTOKE.ival = OP_UC; |
6e909404 | 3256 | else if (*s == 'Q') |
9ded7720 | 3257 | NEXTVAL_NEXTTOKE.ival = OP_QUOTEMETA; |
6e909404 JH |
3258 | else |
3259 | Perl_croak(aTHX_ "panic: yylex"); | |
5db06880 | 3260 | if (PL_madskills) { |
6b29d1f5 | 3261 | SV* const tmpsv = newSVpvs(""); |
5db06880 NC |
3262 | Perl_sv_catpvf(aTHX_ tmpsv, "\\%c", *s); |
3263 | curmad('_', tmpsv); | |
3264 | } | |
6e909404 | 3265 | PL_bufptr = s + 1; |
a0d0e21e | 3266 | } |
79072805 | 3267 | force_next(FUNC); |
3280af22 NIS |
3268 | if (PL_lex_starts) { |
3269 | s = PL_bufptr; | |
3270 | PL_lex_starts = 0; | |
5db06880 NC |
3271 | #ifdef PERL_MAD |
3272 | if (PL_madskills) { | |
cd81e915 NC |
3273 | if (PL_thistoken) |
3274 | sv_free(PL_thistoken); | |
6b29d1f5 | 3275 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3276 | } |
3277 | #endif | |
131b3ad0 DM |
3278 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3279 | if (PL_lex_casemods == 1 && PL_lex_inpat) | |
3280 | OPERATOR(','); | |
3281 | else | |
3282 | Aop(OP_CONCAT); | |
79072805 LW |
3283 | } |
3284 | else | |
cea2e8a9 | 3285 | return yylex(); |
79072805 LW |
3286 | } |
3287 | ||
55497cff | 3288 | case LEX_INTERPPUSH: |
bbf60fe6 | 3289 | return REPORT(sublex_push()); |
55497cff | 3290 | |
79072805 | 3291 | case LEX_INTERPSTART: |
3280af22 | 3292 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3293 | return REPORT(sublex_done()); |
607df283 | 3294 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3295 | "### Interpolated variable\n"); }); |
3280af22 NIS |
3296 | PL_expect = XTERM; |
3297 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
3298 | PL_lex_state = LEX_INTERPNORMAL; | |
3299 | if (PL_lex_dojoin) { | |
cd81e915 | 3300 | start_force(PL_curforce); |
9ded7720 | 3301 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3302 | force_next(','); |
cd81e915 | 3303 | start_force(PL_curforce); |
a0d0e21e | 3304 | force_ident("\"", '$'); |
cd81e915 | 3305 | start_force(PL_curforce); |
9ded7720 | 3306 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3307 | force_next('$'); |
cd81e915 | 3308 | start_force(PL_curforce); |
9ded7720 | 3309 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3310 | force_next('('); |
cd81e915 | 3311 | start_force(PL_curforce); |
9ded7720 | 3312 | NEXTVAL_NEXTTOKE.ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
3313 | force_next(FUNC); |
3314 | } | |
3280af22 NIS |
3315 | if (PL_lex_starts++) { |
3316 | s = PL_bufptr; | |
5db06880 NC |
3317 | #ifdef PERL_MAD |
3318 | if (PL_madskills) { | |
cd81e915 NC |
3319 | if (PL_thistoken) |
3320 | sv_free(PL_thistoken); | |
6b29d1f5 | 3321 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3322 | } |
3323 | #endif | |
131b3ad0 DM |
3324 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3325 | if (!PL_lex_casemods && PL_lex_inpat) | |
3326 | OPERATOR(','); | |
3327 | else | |
3328 | Aop(OP_CONCAT); | |
79072805 | 3329 | } |
cea2e8a9 | 3330 | return yylex(); |
79072805 LW |
3331 | |
3332 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
3333 | if (intuit_more(PL_bufptr)) { |
3334 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
3335 | break; |
3336 | } | |
3337 | /* FALL THROUGH */ | |
3338 | ||
3339 | case LEX_INTERPEND: | |
3280af22 NIS |
3340 | if (PL_lex_dojoin) { |
3341 | PL_lex_dojoin = FALSE; | |
3342 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3343 | #ifdef PERL_MAD |
3344 | if (PL_madskills) { | |
cd81e915 NC |
3345 | if (PL_thistoken) |
3346 | sv_free(PL_thistoken); | |
6b29d1f5 | 3347 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3348 | } |
3349 | #endif | |
bbf60fe6 | 3350 | return REPORT(')'); |
79072805 | 3351 | } |
43a16006 | 3352 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 3353 | && SvEVALED(PL_lex_repl)) |
43a16006 | 3354 | { |
e9fa98b2 | 3355 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 3356 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
a0714e2c | 3357 | PL_lex_repl = NULL; |
e9fa98b2 | 3358 | } |
79072805 LW |
3359 | /* FALLTHROUGH */ |
3360 | case LEX_INTERPCONCAT: | |
3361 | #ifdef DEBUGGING | |
3280af22 | 3362 | if (PL_lex_brackets) |
cea2e8a9 | 3363 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 3364 | #endif |
3280af22 | 3365 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3366 | return REPORT(sublex_done()); |
79072805 | 3367 | |
3280af22 NIS |
3368 | if (SvIVX(PL_linestr) == '\'') { |
3369 | SV *sv = newSVsv(PL_linestr); | |
3370 | if (!PL_lex_inpat) | |
76e3520e | 3371 | sv = tokeq(sv); |
3280af22 | 3372 | else if ( PL_hints & HINT_NEW_RE ) |
b3ac6de7 | 3373 | sv = new_constant(NULL, 0, "qr", sv, sv, "q"); |
79072805 | 3374 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 3375 | s = PL_bufend; |
79072805 LW |
3376 | } |
3377 | else { | |
3280af22 | 3378 | s = scan_const(PL_bufptr); |
79072805 | 3379 | if (*s == '\\') |
3280af22 | 3380 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 3381 | else |
3280af22 | 3382 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
3383 | } |
3384 | ||
3280af22 | 3385 | if (s != PL_bufptr) { |
cd81e915 | 3386 | start_force(PL_curforce); |
5db06880 NC |
3387 | if (PL_madskills) { |
3388 | curmad('X', newSVpvn(PL_bufptr,s-PL_bufptr)); | |
3389 | } | |
9ded7720 | 3390 | NEXTVAL_NEXTTOKE = yylval; |
3280af22 | 3391 | PL_expect = XTERM; |
79072805 | 3392 | force_next(THING); |
131b3ad0 | 3393 | if (PL_lex_starts++) { |
5db06880 NC |
3394 | #ifdef PERL_MAD |
3395 | if (PL_madskills) { | |
cd81e915 NC |
3396 | if (PL_thistoken) |
3397 | sv_free(PL_thistoken); | |
6b29d1f5 | 3398 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3399 | } |
3400 | #endif | |
131b3ad0 DM |
3401 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3402 | if (!PL_lex_casemods && PL_lex_inpat) | |
3403 | OPERATOR(','); | |
3404 | else | |
3405 | Aop(OP_CONCAT); | |
3406 | } | |
79072805 | 3407 | else { |
3280af22 | 3408 | PL_bufptr = s; |
cea2e8a9 | 3409 | return yylex(); |
79072805 LW |
3410 | } |
3411 | } | |
3412 | ||
cea2e8a9 | 3413 | return yylex(); |
a0d0e21e | 3414 | case LEX_FORMLINE: |
3280af22 NIS |
3415 | PL_lex_state = LEX_NORMAL; |
3416 | s = scan_formline(PL_bufptr); | |
3417 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
3418 | goto rightbracket; |
3419 | OPERATOR(';'); | |
79072805 LW |
3420 | } |
3421 | ||
3280af22 NIS |
3422 | s = PL_bufptr; |
3423 | PL_oldoldbufptr = PL_oldbufptr; | |
3424 | PL_oldbufptr = s; | |
463ee0b2 LW |
3425 | |
3426 | retry: | |
5db06880 | 3427 | #ifdef PERL_MAD |
cd81e915 NC |
3428 | if (PL_thistoken) { |
3429 | sv_free(PL_thistoken); | |
3430 | PL_thistoken = 0; | |
5db06880 | 3431 | } |
cd81e915 | 3432 | PL_realtokenstart = s - SvPVX(PL_linestr); /* assume but undo on ws */ |
5db06880 | 3433 | #endif |
378cc40b LW |
3434 | switch (*s) { |
3435 | default: | |
7e2040f0 | 3436 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 3437 | goto keylookup; |
cea2e8a9 | 3438 | Perl_croak(aTHX_ "Unrecognized character \\x%02X", *s & 255); |
e929a76b LW |
3439 | case 4: |
3440 | case 26: | |
3441 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 3442 | case 0: |
5db06880 NC |
3443 | #ifdef PERL_MAD |
3444 | if (PL_madskills) | |
cd81e915 | 3445 | PL_faketokens = 0; |
5db06880 | 3446 | #endif |
3280af22 NIS |
3447 | if (!PL_rsfp) { |
3448 | PL_last_uni = 0; | |
3449 | PL_last_lop = 0; | |
c5ee2135 | 3450 | if (PL_lex_brackets) { |
10edeb5d JH |
3451 | yyerror((const char *) |
3452 | (PL_lex_formbrack | |
3453 | ? "Format not terminated" | |
3454 | : "Missing right curly or square bracket")); | |
c5ee2135 | 3455 | } |
4e553d73 | 3456 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 3457 | "### Tokener got EOF\n"); |
5f80b19c | 3458 | } ); |
79072805 | 3459 | TOKEN(0); |
463ee0b2 | 3460 | } |
3280af22 | 3461 | if (s++ < PL_bufend) |
a687059c | 3462 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
3463 | PL_last_uni = 0; |
3464 | PL_last_lop = 0; | |
3465 | if (!PL_in_eval && !PL_preambled) { | |
3466 | PL_preambled = TRUE; | |
5db06880 NC |
3467 | #ifdef PERL_MAD |
3468 | if (PL_madskills) | |
cd81e915 | 3469 | PL_faketokens = 1; |
5db06880 | 3470 | #endif |
3280af22 NIS |
3471 | sv_setpv(PL_linestr,incl_perldb()); |
3472 | if (SvCUR(PL_linestr)) | |
396482e1 | 3473 | sv_catpvs(PL_linestr,";"); |
3280af22 NIS |
3474 | if (PL_preambleav){ |
3475 | while(AvFILLp(PL_preambleav) >= 0) { | |
3476 | SV *tmpsv = av_shift(PL_preambleav); | |
3477 | sv_catsv(PL_linestr, tmpsv); | |
396482e1 | 3478 | sv_catpvs(PL_linestr, ";"); |
91b7def8 | 3479 | sv_free(tmpsv); |
3480 | } | |
3280af22 NIS |
3481 | sv_free((SV*)PL_preambleav); |
3482 | PL_preambleav = NULL; | |
91b7def8 | 3483 | } |
3280af22 | 3484 | if (PL_minus_n || PL_minus_p) { |
396482e1 | 3485 | sv_catpvs(PL_linestr, "LINE: while (<>) {"); |
3280af22 | 3486 | if (PL_minus_l) |
396482e1 | 3487 | sv_catpvs(PL_linestr,"chomp;"); |
3280af22 | 3488 | if (PL_minus_a) { |
3280af22 | 3489 | if (PL_minus_F) { |
3792a11b NC |
3490 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
3491 | || *PL_splitstr == '"') | |
3280af22 | 3492 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 3493 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 3494 | else { |
c8ef6a4b NC |
3495 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
3496 | bytes can be used as quoting characters. :-) */ | |
dd374669 | 3497 | const char *splits = PL_splitstr; |
91d456ae | 3498 | sv_catpvs(PL_linestr, "our @F=split(q\0"); |
48c4c863 NC |
3499 | do { |
3500 | /* Need to \ \s */ | |
dd374669 AL |
3501 | if (*splits == '\\') |
3502 | sv_catpvn(PL_linestr, splits, 1); | |
3503 | sv_catpvn(PL_linestr, splits, 1); | |
3504 | } while (*splits++); | |
48c4c863 NC |
3505 | /* This loop will embed the trailing NUL of |
3506 | PL_linestr as the last thing it does before | |
3507 | terminating. */ | |
396482e1 | 3508 | sv_catpvs(PL_linestr, ");"); |
54310121 | 3509 | } |
2304df62 AD |
3510 | } |
3511 | else | |
396482e1 | 3512 | sv_catpvs(PL_linestr,"our @F=split(' ');"); |
2304df62 | 3513 | } |
79072805 | 3514 | } |
bc9b29db | 3515 | if (PL_minus_E) |
396482e1 GA |
3516 | sv_catpvs(PL_linestr,"use feature ':5.10';"); |
3517 | sv_catpvs(PL_linestr, "\n"); | |
3280af22 NIS |
3518 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3519 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3520 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3521 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
561b68a9 | 3522 | SV * const sv = newSV(0); |
a0d0e21e LW |
3523 | |
3524 | sv_upgrade(sv, SVt_PVMG); | |
3280af22 | 3525 | sv_setsv(sv,PL_linestr); |
0ac0412a | 3526 | (void)SvIOK_on(sv); |
45977657 | 3527 | SvIV_set(sv, 0); |
36c7798d | 3528 | av_store(CopFILEAVx(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
a0d0e21e | 3529 | } |
79072805 | 3530 | goto retry; |
a687059c | 3531 | } |
e929a76b | 3532 | do { |
aa7440fb | 3533 | bof = PL_rsfp ? TRUE : FALSE; |
bd61b366 | 3534 | if ((s = filter_gets(PL_linestr, PL_rsfp, 0)) == NULL) { |
7e28d3af | 3535 | fake_eof: |
5db06880 | 3536 | #ifdef PERL_MAD |
cd81e915 | 3537 | PL_realtokenstart = -1; |
5db06880 | 3538 | #endif |
7e28d3af JH |
3539 | if (PL_rsfp) { |
3540 | if (PL_preprocess && !PL_in_eval) | |
3541 | (void)PerlProc_pclose(PL_rsfp); | |
3542 | else if ((PerlIO *)PL_rsfp == PerlIO_stdin()) | |
3543 | PerlIO_clearerr(PL_rsfp); | |
3544 | else | |
3545 | (void)PerlIO_close(PL_rsfp); | |
4608196e | 3546 | PL_rsfp = NULL; |
7e28d3af JH |
3547 | PL_doextract = FALSE; |
3548 | } | |
3549 | if (!PL_in_eval && (PL_minus_n || PL_minus_p)) { | |
5db06880 NC |
3550 | #ifdef PERL_MAD |
3551 | if (PL_madskills) | |
cd81e915 | 3552 | PL_faketokens = 1; |
5db06880 | 3553 | #endif |
10edeb5d JH |
3554 | sv_setpv(PL_linestr, |
3555 | (const char *) | |
3556 | (PL_minus_p | |
3557 | ? ";}continue{print;}" : ";}")); | |
7e28d3af JH |
3558 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3559 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3560 | PL_last_lop = PL_last_uni = NULL; |
7e28d3af JH |
3561 | PL_minus_n = PL_minus_p = 0; |
3562 | goto retry; | |
3563 | } | |
3564 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
bd61b366 | 3565 | PL_last_lop = PL_last_uni = NULL; |
c69006e4 | 3566 | sv_setpvn(PL_linestr,"",0); |
7e28d3af JH |
3567 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ |
3568 | } | |
7aa207d6 JH |
3569 | /* If it looks like the start of a BOM or raw UTF-16, |
3570 | * check if it in fact is. */ | |
3571 | else if (bof && | |
3572 | (*s == 0 || | |
3573 | *(U8*)s == 0xEF || | |
3574 | *(U8*)s >= 0xFE || | |
3575 | s[1] == 0)) { | |
226017aa | 3576 | #ifdef PERLIO_IS_STDIO |
e3f494f1 JH |
3577 | # ifdef __GNU_LIBRARY__ |
3578 | # if __GNU_LIBRARY__ == 1 /* Linux glibc5 */ | |
226017aa DD |
3579 | # define FTELL_FOR_PIPE_IS_BROKEN |
3580 | # endif | |
e3f494f1 JH |
3581 | # else |
3582 | # ifdef __GLIBC__ | |
3583 | # if __GLIBC__ == 1 /* maybe some glibc5 release had it like this? */ | |
3584 | # define FTELL_FOR_PIPE_IS_BROKEN | |
3585 | # endif | |
3586 | # endif | |
226017aa DD |
3587 | # endif |
3588 | #endif | |
3589 | #ifdef FTELL_FOR_PIPE_IS_BROKEN | |
3590 | /* This loses the possibility to detect the bof | |
3591 | * situation on perl -P when the libc5 is being used. | |
3592 | * Workaround? Maybe attach some extra state to PL_rsfp? | |
3593 | */ | |
3594 | if (!PL_preprocess) | |
7e28d3af | 3595 | bof = PerlIO_tell(PL_rsfp) == SvCUR(PL_linestr); |
226017aa | 3596 | #else |
eb160463 | 3597 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
226017aa | 3598 | #endif |
7e28d3af | 3599 | if (bof) { |
3280af22 | 3600 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 3601 | s = swallow_bom((U8*)s); |
e929a76b | 3602 | } |
378cc40b | 3603 | } |
3280af22 | 3604 | if (PL_doextract) { |
a0d0e21e | 3605 | /* Incest with pod. */ |
5db06880 NC |
3606 | #ifdef PERL_MAD |
3607 | if (PL_madskills) | |
cd81e915 | 3608 | sv_catsv(PL_thiswhite, PL_linestr); |
5db06880 | 3609 | #endif |
a0d0e21e | 3610 | if (*s == '=' && strnEQ(s, "=cut", 4)) { |
c69006e4 | 3611 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3612 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3613 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3614 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3615 | PL_doextract = FALSE; |
a0d0e21e | 3616 | } |
4e553d73 | 3617 | } |
463ee0b2 | 3618 | incline(s); |
3280af22 NIS |
3619 | } while (PL_doextract); |
3620 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
3621 | if (PERLDB_LINE && PL_curstash != PL_debstash) { | |
561b68a9 | 3622 | SV * const sv = newSV(0); |
a687059c | 3623 | |
93a17b20 | 3624 | sv_upgrade(sv, SVt_PVMG); |
3280af22 | 3625 | sv_setsv(sv,PL_linestr); |
0ac0412a | 3626 | (void)SvIOK_on(sv); |
45977657 | 3627 | SvIV_set(sv, 0); |
36c7798d | 3628 | av_store(CopFILEAVx(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
a687059c | 3629 | } |
3280af22 | 3630 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 3631 | PL_last_lop = PL_last_uni = NULL; |
57843af0 | 3632 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 3633 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 3634 | s++; |
a0d0e21e | 3635 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 3636 | s++; |
5db06880 NC |
3637 | #ifdef PERL_MAD |
3638 | if (PL_madskills) | |
cd81e915 | 3639 | PL_thiswhite = newSVpvn(PL_linestart, s - PL_linestart); |
5db06880 | 3640 | #endif |
bd61b366 | 3641 | d = NULL; |
3280af22 | 3642 | if (!PL_in_eval) { |
44a8e56a | 3643 | if (*s == '#' && *(s+1) == '!') |
3644 | d = s + 2; | |
3645 | #ifdef ALTERNATE_SHEBANG | |
3646 | else { | |
bfed75c6 | 3647 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 3648 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
3649 | d = s + (sizeof(as) - 1); | |
3650 | } | |
3651 | #endif /* ALTERNATE_SHEBANG */ | |
3652 | } | |
3653 | if (d) { | |
b8378b72 | 3654 | char *ipath; |
774d564b | 3655 | char *ipathend; |
b8378b72 | 3656 | |
774d564b | 3657 | while (isSPACE(*d)) |
b8378b72 CS |
3658 | d++; |
3659 | ipath = d; | |
774d564b | 3660 | while (*d && !isSPACE(*d)) |
3661 | d++; | |
3662 | ipathend = d; | |
3663 | ||
3664 | #ifdef ARG_ZERO_IS_SCRIPT | |
3665 | if (ipathend > ipath) { | |
3666 | /* | |
3667 | * HP-UX (at least) sets argv[0] to the script name, | |
3668 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
3669 | * at least, set argv[0] to the basename of the Perl | |
3670 | * interpreter. So, having found "#!", we'll set it right. | |
3671 | */ | |
fafc274c NC |
3672 | SV * const x = GvSV(gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, |
3673 | SVt_PV)); /* $^X */ | |
774d564b | 3674 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 3675 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 3676 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 3677 | SvSETMAGIC(x); |
3678 | } | |
556c1dec JH |
3679 | else { |
3680 | STRLEN blen; | |
3681 | STRLEN llen; | |
cfd0369c | 3682 | const char *bstart = SvPV_const(CopFILESV(PL_curcop),blen); |
9d4ba2ae | 3683 | const char * const lstart = SvPV_const(x,llen); |
556c1dec JH |
3684 | if (llen < blen) { |
3685 | bstart += blen - llen; | |
3686 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
3687 | sv_setpvn(x, ipath, ipathend - ipath); | |
3688 | SvSETMAGIC(x); | |
3689 | } | |
3690 | } | |
3691 | } | |
774d564b | 3692 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 3693 | } |
774d564b | 3694 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
3695 | |
3696 | /* | |
3697 | * Look for options. | |
3698 | */ | |
748a9306 | 3699 | d = instr(s,"perl -"); |
84e30d1a | 3700 | if (!d) { |
748a9306 | 3701 | d = instr(s,"perl"); |
84e30d1a GS |
3702 | #if defined(DOSISH) |
3703 | /* avoid getting into infinite loops when shebang | |
3704 | * line contains "Perl" rather than "perl" */ | |
3705 | if (!d) { | |
3706 | for (d = ipathend-4; d >= ipath; --d) { | |
3707 | if ((*d == 'p' || *d == 'P') | |
3708 | && !ibcmp(d, "perl", 4)) | |
3709 | { | |
3710 | break; | |
3711 | } | |
3712 | } | |
3713 | if (d < ipath) | |
bd61b366 | 3714 | d = NULL; |
84e30d1a GS |
3715 | } |
3716 | #endif | |
3717 | } | |
44a8e56a | 3718 | #ifdef ALTERNATE_SHEBANG |
3719 | /* | |
3720 | * If the ALTERNATE_SHEBANG on this system starts with a | |
3721 | * character that can be part of a Perl expression, then if | |
3722 | * we see it but not "perl", we're probably looking at the | |
3723 | * start of Perl code, not a request to hand off to some | |
3724 | * other interpreter. Similarly, if "perl" is there, but | |
3725 | * not in the first 'word' of the line, we assume the line | |
3726 | * contains the start of the Perl program. | |
44a8e56a | 3727 | */ |
3728 | if (d && *s != '#') { | |
f54cb97a | 3729 | const char *c = ipath; |
44a8e56a | 3730 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
3731 | c++; | |
3732 | if (c < d) | |
bd61b366 | 3733 | d = NULL; /* "perl" not in first word; ignore */ |
44a8e56a | 3734 | else |
3735 | *s = '#'; /* Don't try to parse shebang line */ | |
3736 | } | |
774d564b | 3737 | #endif /* ALTERNATE_SHEBANG */ |
bf4acbe4 | 3738 | #ifndef MACOS_TRADITIONAL |
748a9306 | 3739 | if (!d && |
44a8e56a | 3740 | *s == '#' && |
774d564b | 3741 | ipathend > ipath && |
3280af22 | 3742 | !PL_minus_c && |
748a9306 | 3743 | !instr(s,"indir") && |
3280af22 | 3744 | instr(PL_origargv[0],"perl")) |
748a9306 | 3745 | { |
27da23d5 | 3746 | dVAR; |
9f68db38 | 3747 | char **newargv; |
9f68db38 | 3748 | |
774d564b | 3749 | *ipathend = '\0'; |
3750 | s = ipathend + 1; | |
3280af22 | 3751 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 3752 | s++; |
3280af22 | 3753 | if (s < PL_bufend) { |
a02a5408 | 3754 | Newxz(newargv,PL_origargc+3,char*); |
9f68db38 | 3755 | newargv[1] = s; |
3280af22 | 3756 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
3757 | s++; |
3758 | *s = '\0'; | |
3280af22 | 3759 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
3760 | } |
3761 | else | |
3280af22 | 3762 | newargv = PL_origargv; |
774d564b | 3763 | newargv[0] = ipath; |
b35112e7 | 3764 | PERL_FPU_PRE_EXEC |
b4748376 | 3765 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
b35112e7 | 3766 | PERL_FPU_POST_EXEC |
cea2e8a9 | 3767 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 3768 | } |
bf4acbe4 | 3769 | #endif |
748a9306 | 3770 | if (d) { |
c35e046a AL |
3771 | while (*d && !isSPACE(*d)) |
3772 | d++; | |
3773 | while (SPACE_OR_TAB(*d)) | |
3774 | d++; | |
748a9306 LW |
3775 | |
3776 | if (*d++ == '-') { | |
f54cb97a | 3777 | const bool switches_done = PL_doswitches; |
fb993905 GA |
3778 | const U32 oldpdb = PL_perldb; |
3779 | const bool oldn = PL_minus_n; | |
3780 | const bool oldp = PL_minus_p; | |
3781 | ||
8cc95fdb | 3782 | do { |
3ffe3ee4 | 3783 | if (*d == 'M' || *d == 'm' || *d == 'C') { |
9d4ba2ae | 3784 | const char * const m = d; |
d4c19fe8 AL |
3785 | while (*d && !isSPACE(*d)) |
3786 | d++; | |
cea2e8a9 | 3787 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
8cc95fdb | 3788 | (int)(d - m), m); |
3789 | } | |
97bd5664 | 3790 | d = moreswitches(d); |
8cc95fdb | 3791 | } while (d); |
f0b2cf55 YST |
3792 | if (PL_doswitches && !switches_done) { |
3793 | int argc = PL_origargc; | |
3794 | char **argv = PL_origargv; | |
3795 | do { | |
3796 | argc--,argv++; | |
3797 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
3798 | init_argv_symbols(argc,argv); | |
3799 | } | |
155aba94 GS |
3800 | if ((PERLDB_LINE && !oldpdb) || |
3801 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) | |
b084f20b | 3802 | /* if we have already added "LINE: while (<>) {", |
3803 | we must not do it again */ | |
748a9306 | 3804 | { |
c69006e4 | 3805 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3806 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3807 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3808 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3809 | PL_preambled = FALSE; |
84902520 | 3810 | if (PERLDB_LINE) |
3280af22 | 3811 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
3812 | goto retry; |
3813 | } | |
a0d0e21e | 3814 | } |
79072805 | 3815 | } |
9f68db38 | 3816 | } |
79072805 | 3817 | } |
3280af22 NIS |
3818 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3819 | PL_bufptr = s; | |
3820 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3821 | return yylex(); |
ae986130 | 3822 | } |
378cc40b | 3823 | goto retry; |
4fdae800 | 3824 | case '\r': |
6a27c188 | 3825 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 3826 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 3827 | Perl_croak(aTHX_ |
cc507455 | 3828 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 3829 | #endif |
4fdae800 | 3830 | case ' ': case '\t': case '\f': case 013: |
bf4acbe4 GS |
3831 | #ifdef MACOS_TRADITIONAL |
3832 | case '\312': | |
3833 | #endif | |
5db06880 | 3834 | #ifdef PERL_MAD |
cd81e915 | 3835 | PL_realtokenstart = -1; |
5db06880 NC |
3836 | s = SKIPSPACE0(s); |
3837 | #else | |
378cc40b | 3838 | s++; |
5db06880 | 3839 | #endif |
378cc40b | 3840 | goto retry; |
378cc40b | 3841 | case '#': |
e929a76b | 3842 | case '\n': |
5db06880 | 3843 | #ifdef PERL_MAD |
cd81e915 | 3844 | PL_realtokenstart = -1; |
5db06880 | 3845 | if (PL_madskills) |
cd81e915 | 3846 | PL_faketokens = 0; |
5db06880 | 3847 | #endif |
3280af22 | 3848 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
3849 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
3850 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
3851 | CopLINE_dec(PL_curcop); | |
3852 | incline(s); | |
3853 | } | |
5db06880 NC |
3854 | if (PL_madskills && !PL_lex_formbrack && !PL_in_eval) { |
3855 | s = SKIPSPACE0(s); | |
3856 | if (!PL_in_eval || PL_rsfp) | |
3857 | incline(s); | |
3858 | } | |
3859 | else { | |
3860 | d = s; | |
3861 | while (d < PL_bufend && *d != '\n') | |
3862 | d++; | |
3863 | if (d < PL_bufend) | |
3864 | d++; | |
3865 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
3866 | Perl_croak(aTHX_ "panic: input overflow"); | |
3867 | #ifdef PERL_MAD | |
3868 | if (PL_madskills) | |
cd81e915 | 3869 | PL_thiswhite = newSVpvn(s, d - s); |
5db06880 NC |
3870 | #endif |
3871 | s = d; | |
3872 | incline(s); | |
3873 | } | |
3280af22 NIS |
3874 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3875 | PL_bufptr = s; | |
3876 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3877 | return yylex(); |
a687059c | 3878 | } |
378cc40b | 3879 | } |
a687059c | 3880 | else { |
5db06880 NC |
3881 | #ifdef PERL_MAD |
3882 | if (PL_madskills && CopLINE(PL_curcop) >= 1 && !PL_lex_formbrack) { | |
3883 | if (CopLINE(PL_curcop) == 1 && s[0] == '#' && s[1] == '!') { | |
cd81e915 | 3884 | PL_faketokens = 0; |
5db06880 NC |
3885 | s = SKIPSPACE0(s); |
3886 | TOKEN(PEG); /* make sure any #! line is accessible */ | |
3887 | } | |
3888 | s = SKIPSPACE0(s); | |
3889 | } | |
3890 | else { | |
3891 | /* if (PL_madskills && PL_lex_formbrack) { */ | |
3892 | d = s; | |
3893 | while (d < PL_bufend && *d != '\n') | |
3894 | d++; | |
3895 | if (d < PL_bufend) | |
3896 | d++; | |
3897 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
3898 | Perl_croak(aTHX_ "panic: input overflow"); | |
3899 | if (PL_madskills && CopLINE(PL_curcop) >= 1) { | |
cd81e915 | 3900 | if (!PL_thiswhite) |
6b29d1f5 | 3901 | PL_thiswhite = newSVpvs(""); |
5db06880 | 3902 | if (CopLINE(PL_curcop) == 1) { |
cd81e915 NC |
3903 | sv_setpvn(PL_thiswhite, "", 0); |
3904 | PL_faketokens = 0; | |
5db06880 | 3905 | } |
cd81e915 | 3906 | sv_catpvn(PL_thiswhite, s, d - s); |
5db06880 NC |
3907 | } |
3908 | s = d; | |
3909 | /* } | |
3910 | *s = '\0'; | |
3911 | PL_bufend = s; */ | |
3912 | } | |
3913 | #else | |
378cc40b | 3914 | *s = '\0'; |
3280af22 | 3915 | PL_bufend = s; |
5db06880 | 3916 | #endif |
a687059c | 3917 | } |
378cc40b LW |
3918 | goto retry; |
3919 | case '-': | |
79072805 | 3920 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 | 3921 | I32 ftst = 0; |
90771dc0 | 3922 | char tmp; |
e5edeb50 | 3923 | |
378cc40b | 3924 | s++; |
3280af22 | 3925 | PL_bufptr = s; |
748a9306 LW |
3926 | tmp = *s++; |
3927 | ||
bf4acbe4 | 3928 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
3929 | s++; |
3930 | ||
3931 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 3932 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
931e0695 | 3933 | DEBUG_T( { printbuf("### Saw unary minus before =>, forcing word %s\n", s); } ); |
748a9306 LW |
3934 | OPERATOR('-'); /* unary minus */ |
3935 | } | |
3280af22 | 3936 | PL_last_uni = PL_oldbufptr; |
748a9306 | 3937 | switch (tmp) { |
e5edeb50 JH |
3938 | case 'r': ftst = OP_FTEREAD; break; |
3939 | case 'w': ftst = OP_FTEWRITE; break; | |
3940 | case 'x': ftst = OP_FTEEXEC; break; | |
3941 | case 'o': ftst = OP_FTEOWNED; break; | |
3942 | case 'R': ftst = OP_FTRREAD; break; | |
3943 | case 'W': ftst = OP_FTRWRITE; break; | |
3944 | case 'X': ftst = OP_FTREXEC; break; | |
3945 | case 'O': ftst = OP_FTROWNED; break; | |
3946 | case 'e': ftst = OP_FTIS; break; | |
3947 | case 'z': ftst = OP_FTZERO; break; | |
3948 | case 's': ftst = OP_FTSIZE; break; | |
3949 | case 'f': ftst = OP_FTFILE; break; | |
3950 | case 'd': ftst = OP_FTDIR; break; | |
3951 | case 'l': ftst = OP_FTLINK; break; | |
3952 | case 'p': ftst = OP_FTPIPE; break; | |
3953 | case 'S': ftst = OP_FTSOCK; break; | |
3954 | case 'u': ftst = OP_FTSUID; break; | |
3955 | case 'g': ftst = OP_FTSGID; break; | |
3956 | case 'k': ftst = OP_FTSVTX; break; | |
3957 | case 'b': ftst = OP_FTBLK; break; | |
3958 | case 'c': ftst = OP_FTCHR; break; | |
3959 | case 't': ftst = OP_FTTTY; break; | |
3960 | case 'T': ftst = OP_FTTEXT; break; | |
3961 | case 'B': ftst = OP_FTBINARY; break; | |
3962 | case 'M': case 'A': case 'C': | |
fafc274c | 3963 | gv_fetchpvs("\024", GV_ADD|GV_NOTQUAL, SVt_PV); |
e5edeb50 JH |
3964 | switch (tmp) { |
3965 | case 'M': ftst = OP_FTMTIME; break; | |
3966 | case 'A': ftst = OP_FTATIME; break; | |
3967 | case 'C': ftst = OP_FTCTIME; break; | |
3968 | default: break; | |
3969 | } | |
3970 | break; | |
378cc40b | 3971 | default: |
378cc40b LW |
3972 | break; |
3973 | } | |
e5edeb50 | 3974 | if (ftst) { |
eb160463 | 3975 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 3976 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a18d764d | 3977 | "### Saw file test %c\n", (int)tmp); |
5f80b19c | 3978 | } ); |
e5edeb50 JH |
3979 | FTST(ftst); |
3980 | } | |
3981 | else { | |
3982 | /* Assume it was a minus followed by a one-letter named | |
3983 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 3984 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
17ad61e0 | 3985 | "### '-%c' looked like a file test but was not\n", |
4fccd7c6 | 3986 | (int) tmp); |
5f80b19c | 3987 | } ); |
3cf7b4c4 | 3988 | s = --PL_bufptr; |
e5edeb50 | 3989 | } |
378cc40b | 3990 | } |
90771dc0 NC |
3991 | { |
3992 | const char tmp = *s++; | |
3993 | if (*s == tmp) { | |
3994 | s++; | |
3995 | if (PL_expect == XOPERATOR) | |
3996 | TERM(POSTDEC); | |
3997 | else | |
3998 | OPERATOR(PREDEC); | |
3999 | } | |
4000 | else if (*s == '>') { | |
4001 | s++; | |
29595ff2 | 4002 | s = SKIPSPACE1(s); |
90771dc0 NC |
4003 | if (isIDFIRST_lazy_if(s,UTF)) { |
4004 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); | |
4005 | TOKEN(ARROW); | |
4006 | } | |
4007 | else if (*s == '$') | |
4008 | OPERATOR(ARROW); | |
4009 | else | |
4010 | TERM(ARROW); | |
4011 | } | |
3280af22 | 4012 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4013 | Aop(OP_SUBTRACT); |
4014 | else { | |
4015 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4016 | check_uni(); | |
4017 | OPERATOR('-'); /* unary minus */ | |
79072805 | 4018 | } |
2f3197b3 | 4019 | } |
79072805 | 4020 | |
378cc40b | 4021 | case '+': |
90771dc0 NC |
4022 | { |
4023 | const char tmp = *s++; | |
4024 | if (*s == tmp) { | |
4025 | s++; | |
4026 | if (PL_expect == XOPERATOR) | |
4027 | TERM(POSTINC); | |
4028 | else | |
4029 | OPERATOR(PREINC); | |
4030 | } | |
3280af22 | 4031 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4032 | Aop(OP_ADD); |
4033 | else { | |
4034 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4035 | check_uni(); | |
4036 | OPERATOR('+'); | |
4037 | } | |
2f3197b3 | 4038 | } |
a687059c | 4039 | |
378cc40b | 4040 | case '*': |
3280af22 NIS |
4041 | if (PL_expect != XOPERATOR) { |
4042 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
4043 | PL_expect = XOPERATOR; | |
4044 | force_ident(PL_tokenbuf, '*'); | |
4045 | if (!*PL_tokenbuf) | |
a0d0e21e | 4046 | PREREF('*'); |
79072805 | 4047 | TERM('*'); |
a687059c | 4048 | } |
79072805 LW |
4049 | s++; |
4050 | if (*s == '*') { | |
a687059c | 4051 | s++; |
79072805 | 4052 | PWop(OP_POW); |
a687059c | 4053 | } |
79072805 LW |
4054 | Mop(OP_MULTIPLY); |
4055 | ||
378cc40b | 4056 | case '%': |
3280af22 | 4057 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 4058 | ++s; |
4059 | Mop(OP_MODULO); | |
a687059c | 4060 | } |
3280af22 NIS |
4061 | PL_tokenbuf[0] = '%'; |
4062 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, TRUE); | |
4063 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 4064 | PREREF('%'); |
a687059c | 4065 | } |
3280af22 | 4066 | PL_pending_ident = '%'; |
bbce6d69 | 4067 | TERM('%'); |
a687059c | 4068 | |
378cc40b | 4069 | case '^': |
79072805 | 4070 | s++; |
a0d0e21e | 4071 | BOop(OP_BIT_XOR); |
79072805 | 4072 | case '[': |
3280af22 | 4073 | PL_lex_brackets++; |
79072805 | 4074 | /* FALL THROUGH */ |
378cc40b | 4075 | case '~': |
0d863452 RH |
4076 | if (s[1] == '~' |
4077 | && (PL_expect == XOPERATOR || PL_expect == XTERMORDORDOR) | |
ef89dcc3 | 4078 | && FEATURE_IS_ENABLED("~~")) |
0d863452 RH |
4079 | { |
4080 | s += 2; | |
4081 | Eop(OP_SMARTMATCH); | |
4082 | } | |
378cc40b | 4083 | case ',': |
90771dc0 NC |
4084 | { |
4085 | const char tmp = *s++; | |
4086 | OPERATOR(tmp); | |
4087 | } | |
a0d0e21e LW |
4088 | case ':': |
4089 | if (s[1] == ':') { | |
4090 | len = 0; | |
0bfa2a8a | 4091 | goto just_a_word_zero_gv; |
a0d0e21e LW |
4092 | } |
4093 | s++; | |
09bef843 SB |
4094 | switch (PL_expect) { |
4095 | OP *attrs; | |
5db06880 NC |
4096 | #ifdef PERL_MAD |
4097 | I32 stuffstart; | |
4098 | #endif | |
09bef843 SB |
4099 | case XOPERATOR: |
4100 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
4101 | break; | |
4102 | PL_bufptr = s; /* update in case we back off */ | |
4103 | goto grabattrs; | |
4104 | case XATTRBLOCK: | |
4105 | PL_expect = XBLOCK; | |
4106 | goto grabattrs; | |
4107 | case XATTRTERM: | |
4108 | PL_expect = XTERMBLOCK; | |
4109 | grabattrs: | |
5db06880 NC |
4110 | #ifdef PERL_MAD |
4111 | stuffstart = s - SvPVX(PL_linestr) - 1; | |
4112 | #endif | |
29595ff2 | 4113 | s = PEEKSPACE(s); |
5f66b61c | 4114 | attrs = NULL; |
7e2040f0 | 4115 | while (isIDFIRST_lazy_if(s,UTF)) { |
90771dc0 | 4116 | I32 tmp; |
5cc237b8 | 4117 | SV *sv; |
09bef843 | 4118 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 4119 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len, 0))) { |
f9829d6b GS |
4120 | if (tmp < 0) tmp = -tmp; |
4121 | switch (tmp) { | |
4122 | case KEY_or: | |
4123 | case KEY_and: | |
c963b151 | 4124 | case KEY_err: |
f9829d6b GS |
4125 | case KEY_for: |
4126 | case KEY_unless: | |
4127 | case KEY_if: | |
4128 | case KEY_while: | |
4129 | case KEY_until: | |
4130 | goto got_attrs; | |
4131 | default: | |
4132 | break; | |
4133 | } | |
4134 | } | |
5cc237b8 | 4135 | sv = newSVpvn(s, len); |
09bef843 SB |
4136 | if (*d == '(') { |
4137 | d = scan_str(d,TRUE,TRUE); | |
4138 | if (!d) { | |
09bef843 SB |
4139 | /* MUST advance bufptr here to avoid bogus |
4140 | "at end of line" context messages from yyerror(). | |
4141 | */ | |
4142 | PL_bufptr = s + len; | |
4143 | yyerror("Unterminated attribute parameter in attribute list"); | |
4144 | if (attrs) | |
4145 | op_free(attrs); | |
5cc237b8 | 4146 | sv_free(sv); |
bbf60fe6 | 4147 | return REPORT(0); /* EOF indicator */ |
09bef843 SB |
4148 | } |
4149 | } | |
4150 | if (PL_lex_stuff) { | |
09bef843 SB |
4151 | sv_catsv(sv, PL_lex_stuff); |
4152 | attrs = append_elem(OP_LIST, attrs, | |
4153 | newSVOP(OP_CONST, 0, sv)); | |
4154 | SvREFCNT_dec(PL_lex_stuff); | |
a0714e2c | 4155 | PL_lex_stuff = NULL; |
09bef843 SB |
4156 | } |
4157 | else { | |
5cc237b8 BS |
4158 | if (len == 6 && strnEQ(SvPVX(sv), "unique", len)) { |
4159 | sv_free(sv); | |
1108974d | 4160 | if (PL_in_my == KEY_our) { |
371fce9b DM |
4161 | #ifdef USE_ITHREADS |
4162 | GvUNIQUE_on(cGVOPx_gv(yylval.opval)); | |
4163 | #else | |
1108974d | 4164 | /* skip to avoid loading attributes.pm */ |
371fce9b | 4165 | #endif |
df9a6019 | 4166 | deprecate(":unique"); |
1108974d | 4167 | } |
bfed75c6 | 4168 | else |
371fce9b DM |
4169 | Perl_croak(aTHX_ "The 'unique' attribute may only be applied to 'our' variables"); |
4170 | } | |
4171 | ||
d3cea301 SB |
4172 | /* NOTE: any CV attrs applied here need to be part of |
4173 | the CVf_BUILTIN_ATTRS define in cv.h! */ | |
5cc237b8 BS |
4174 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "lvalue", len)) { |
4175 | sv_free(sv); | |
78f9721b | 4176 | CvLVALUE_on(PL_compcv); |
5cc237b8 BS |
4177 | } |
4178 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "locked", len)) { | |
4179 | sv_free(sv); | |
78f9721b | 4180 | CvLOCKED_on(PL_compcv); |
5cc237b8 BS |
4181 | } |
4182 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "method", len)) { | |
4183 | sv_free(sv); | |
78f9721b | 4184 | CvMETHOD_on(PL_compcv); |
5cc237b8 BS |
4185 | } |
4186 | else if (!PL_in_my && len == 9 && strnEQ(SvPVX(sv), "assertion", len)) { | |
4187 | sv_free(sv); | |
06492da6 | 4188 | CvASSERTION_on(PL_compcv); |
5cc237b8 | 4189 | } |
78f9721b SM |
4190 | /* After we've set the flags, it could be argued that |
4191 | we don't need to do the attributes.pm-based setting | |
4192 | process, and shouldn't bother appending recognized | |
d3cea301 SB |
4193 | flags. To experiment with that, uncomment the |
4194 | following "else". (Note that's already been | |
4195 | uncommented. That keeps the above-applied built-in | |
4196 | attributes from being intercepted (and possibly | |
4197 | rejected) by a package's attribute routines, but is | |
4198 | justified by the performance win for the common case | |
4199 | of applying only built-in attributes.) */ | |
0256094b | 4200 | else |
78f9721b SM |
4201 | attrs = append_elem(OP_LIST, attrs, |
4202 | newSVOP(OP_CONST, 0, | |
5cc237b8 | 4203 | sv)); |
09bef843 | 4204 | } |
29595ff2 | 4205 | s = PEEKSPACE(d); |
0120eecf | 4206 | if (*s == ':' && s[1] != ':') |
29595ff2 | 4207 | s = PEEKSPACE(s+1); |
0120eecf GS |
4208 | else if (s == d) |
4209 | break; /* require real whitespace or :'s */ | |
29595ff2 | 4210 | /* XXX losing whitespace on sequential attributes here */ |
09bef843 | 4211 | } |
90771dc0 NC |
4212 | { |
4213 | const char tmp | |
4214 | = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ | |
4215 | if (*s != ';' && *s != '}' && *s != tmp | |
4216 | && (tmp != '=' || *s != ')')) { | |
4217 | const char q = ((*s == '\'') ? '"' : '\''); | |
4218 | /* If here for an expression, and parsed no attrs, back | |
4219 | off. */ | |
4220 | if (tmp == '=' && !attrs) { | |
4221 | s = PL_bufptr; | |
4222 | break; | |
4223 | } | |
4224 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
4225 | context messages from yyerror(). | |
4226 | */ | |
4227 | PL_bufptr = s; | |
10edeb5d JH |
4228 | yyerror( (const char *) |
4229 | (*s | |
4230 | ? Perl_form(aTHX_ "Invalid separator character " | |
4231 | "%c%c%c in attribute list", q, *s, q) | |
4232 | : "Unterminated attribute list" ) ); | |
90771dc0 NC |
4233 | if (attrs) |
4234 | op_free(attrs); | |
4235 | OPERATOR(':'); | |
09bef843 | 4236 | } |
09bef843 | 4237 | } |
f9829d6b | 4238 | got_attrs: |
09bef843 | 4239 | if (attrs) { |
cd81e915 | 4240 | start_force(PL_curforce); |
9ded7720 | 4241 | NEXTVAL_NEXTTOKE.opval = attrs; |
cd81e915 | 4242 | CURMAD('_', PL_nextwhite); |
89122651 | 4243 | force_next(THING); |
5db06880 NC |
4244 | } |
4245 | #ifdef PERL_MAD | |
4246 | if (PL_madskills) { | |
cd81e915 | 4247 | PL_thistoken = newSVpvn(SvPVX(PL_linestr) + stuffstart, |
5db06880 | 4248 | (s - SvPVX(PL_linestr)) - stuffstart); |
09bef843 | 4249 | } |
5db06880 | 4250 | #endif |
09bef843 SB |
4251 | TOKEN(COLONATTR); |
4252 | } | |
a0d0e21e | 4253 | OPERATOR(':'); |
8990e307 LW |
4254 | case '(': |
4255 | s++; | |
3280af22 NIS |
4256 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
4257 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 4258 | else |
3280af22 | 4259 | PL_expect = XTERM; |
29595ff2 | 4260 | s = SKIPSPACE1(s); |
a0d0e21e | 4261 | TOKEN('('); |
378cc40b | 4262 | case ';': |
f4dd75d9 | 4263 | CLINE; |
90771dc0 NC |
4264 | { |
4265 | const char tmp = *s++; | |
4266 | OPERATOR(tmp); | |
4267 | } | |
378cc40b | 4268 | case ')': |
90771dc0 NC |
4269 | { |
4270 | const char tmp = *s++; | |
29595ff2 | 4271 | s = SKIPSPACE1(s); |
90771dc0 NC |
4272 | if (*s == '{') |
4273 | PREBLOCK(tmp); | |
4274 | TERM(tmp); | |
4275 | } | |
79072805 LW |
4276 | case ']': |
4277 | s++; | |
3280af22 | 4278 | if (PL_lex_brackets <= 0) |
d98d5fff | 4279 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 4280 | else |
3280af22 NIS |
4281 | --PL_lex_brackets; |
4282 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4283 | if (PL_lex_brackets == 0) { | |
a0d0e21e | 4284 | if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>')) |
3280af22 | 4285 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4286 | } |
4287 | } | |
4633a7c4 | 4288 | TERM(']'); |
79072805 LW |
4289 | case '{': |
4290 | leftbracket: | |
79072805 | 4291 | s++; |
3280af22 | 4292 | if (PL_lex_brackets > 100) { |
8edd5f42 | 4293 | Renew(PL_lex_brackstack, PL_lex_brackets + 10, char); |
8990e307 | 4294 | } |
3280af22 | 4295 | switch (PL_expect) { |
a0d0e21e | 4296 | case XTERM: |
3280af22 | 4297 | if (PL_lex_formbrack) { |
a0d0e21e LW |
4298 | s--; |
4299 | PRETERMBLOCK(DO); | |
4300 | } | |
3280af22 NIS |
4301 | if (PL_oldoldbufptr == PL_last_lop) |
4302 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4303 | else |
3280af22 | 4304 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 4305 | OPERATOR(HASHBRACK); |
a0d0e21e | 4306 | case XOPERATOR: |
bf4acbe4 | 4307 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 4308 | s++; |
44a8e56a | 4309 | d = s; |
3280af22 NIS |
4310 | PL_tokenbuf[0] = '\0'; |
4311 | if (d < PL_bufend && *d == '-') { | |
4312 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 4313 | d++; |
bf4acbe4 | 4314 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 4315 | d++; |
4316 | } | |
7e2040f0 | 4317 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 4318 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 4319 | FALSE, &len); |
bf4acbe4 | 4320 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
4321 | d++; |
4322 | if (*d == '}') { | |
f54cb97a | 4323 | const char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 4324 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
4325 | if (minus) | |
4326 | force_next('-'); | |
748a9306 LW |
4327 | } |
4328 | } | |
4329 | /* FALL THROUGH */ | |
09bef843 | 4330 | case XATTRBLOCK: |
748a9306 | 4331 | case XBLOCK: |
3280af22 NIS |
4332 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
4333 | PL_expect = XSTATE; | |
a0d0e21e | 4334 | break; |
09bef843 | 4335 | case XATTRTERM: |
a0d0e21e | 4336 | case XTERMBLOCK: |
3280af22 NIS |
4337 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
4338 | PL_expect = XSTATE; | |
a0d0e21e LW |
4339 | break; |
4340 | default: { | |
f54cb97a | 4341 | const char *t; |
3280af22 NIS |
4342 | if (PL_oldoldbufptr == PL_last_lop) |
4343 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4344 | else |
3280af22 | 4345 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
29595ff2 | 4346 | s = SKIPSPACE1(s); |
8452ff4b SB |
4347 | if (*s == '}') { |
4348 | if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) { | |
4349 | PL_expect = XTERM; | |
4350 | /* This hack is to get the ${} in the message. */ | |
4351 | PL_bufptr = s+1; | |
4352 | yyerror("syntax error"); | |
4353 | break; | |
4354 | } | |
a0d0e21e | 4355 | OPERATOR(HASHBRACK); |
8452ff4b | 4356 | } |
b8a4b1be GS |
4357 | /* This hack serves to disambiguate a pair of curlies |
4358 | * as being a block or an anon hash. Normally, expectation | |
4359 | * determines that, but in cases where we're not in a | |
4360 | * position to expect anything in particular (like inside | |
4361 | * eval"") we have to resolve the ambiguity. This code | |
4362 | * covers the case where the first term in the curlies is a | |
4363 | * quoted string. Most other cases need to be explicitly | |
a0288114 | 4364 | * disambiguated by prepending a "+" before the opening |
b8a4b1be GS |
4365 | * curly in order to force resolution as an anon hash. |
4366 | * | |
4367 | * XXX should probably propagate the outer expectation | |
4368 | * into eval"" to rely less on this hack, but that could | |
4369 | * potentially break current behavior of eval"". | |
4370 | * GSAR 97-07-21 | |
4371 | */ | |
4372 | t = s; | |
4373 | if (*s == '\'' || *s == '"' || *s == '`') { | |
4374 | /* common case: get past first string, handling escapes */ | |
3280af22 | 4375 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
4376 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
4377 | t++; | |
4378 | t++; | |
a0d0e21e | 4379 | } |
b8a4b1be | 4380 | else if (*s == 'q') { |
3280af22 | 4381 | if (++t < PL_bufend |
b8a4b1be | 4382 | && (!isALNUM(*t) |
3280af22 | 4383 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
4384 | && !isALNUM(*t)))) |
4385 | { | |
abc667d1 | 4386 | /* skip q//-like construct */ |
f54cb97a | 4387 | const char *tmps; |
b8a4b1be GS |
4388 | char open, close, term; |
4389 | I32 brackets = 1; | |
4390 | ||
3280af22 | 4391 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be | 4392 | t++; |
abc667d1 DM |
4393 | /* check for q => */ |
4394 | if (t+1 < PL_bufend && t[0] == '=' && t[1] == '>') { | |
4395 | OPERATOR(HASHBRACK); | |
4396 | } | |
b8a4b1be GS |
4397 | term = *t; |
4398 | open = term; | |
4399 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
4400 | term = tmps[5]; | |
4401 | close = term; | |
4402 | if (open == close) | |
3280af22 NIS |
4403 | for (t++; t < PL_bufend; t++) { |
4404 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 4405 | t++; |
6d07e5e9 | 4406 | else if (*t == open) |
b8a4b1be GS |
4407 | break; |
4408 | } | |
abc667d1 | 4409 | else { |
3280af22 NIS |
4410 | for (t++; t < PL_bufend; t++) { |
4411 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 4412 | t++; |
6d07e5e9 | 4413 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
4414 | break; |
4415 | else if (*t == open) | |
4416 | brackets++; | |
4417 | } | |
abc667d1 DM |
4418 | } |
4419 | t++; | |
b8a4b1be | 4420 | } |
abc667d1 DM |
4421 | else |
4422 | /* skip plain q word */ | |
4423 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) | |
4424 | t += UTF8SKIP(t); | |
a0d0e21e | 4425 | } |
7e2040f0 | 4426 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 4427 | t += UTF8SKIP(t); |
7e2040f0 | 4428 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 4429 | t += UTF8SKIP(t); |
a0d0e21e | 4430 | } |
3280af22 | 4431 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 4432 | t++; |
b8a4b1be GS |
4433 | /* if comma follows first term, call it an anon hash */ |
4434 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 4435 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 4436 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 4437 | OPERATOR(HASHBRACK); |
3280af22 | 4438 | if (PL_expect == XREF) |
4e4e412b | 4439 | PL_expect = XTERM; |
a0d0e21e | 4440 | else { |
3280af22 NIS |
4441 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
4442 | PL_expect = XSTATE; | |
a0d0e21e | 4443 | } |
8990e307 | 4444 | } |
a0d0e21e | 4445 | break; |
463ee0b2 | 4446 | } |
57843af0 | 4447 | yylval.ival = CopLINE(PL_curcop); |
79072805 | 4448 | if (isSPACE(*s) || *s == '#') |
3280af22 | 4449 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 4450 | TOKEN('{'); |
378cc40b | 4451 | case '}': |
79072805 LW |
4452 | rightbracket: |
4453 | s++; | |
3280af22 | 4454 | if (PL_lex_brackets <= 0) |
d98d5fff | 4455 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 4456 | else |
3280af22 | 4457 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 4458 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
4459 | PL_lex_formbrack = 0; |
4460 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4461 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
4462 | if (PL_expect & XFAKEBRACK) { |
4463 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
4464 | PL_lex_state = LEX_INTERPEND; |
4465 | PL_bufptr = s; | |
5db06880 NC |
4466 | #if 0 |
4467 | if (PL_madskills) { | |
cd81e915 | 4468 | if (!PL_thiswhite) |
6b29d1f5 | 4469 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4470 | sv_catpvn(PL_thiswhite,"}",1); |
5db06880 NC |
4471 | } |
4472 | #endif | |
cea2e8a9 | 4473 | return yylex(); /* ignore fake brackets */ |
79072805 | 4474 | } |
fa83b5b6 | 4475 | if (*s == '-' && s[1] == '>') |
3280af22 | 4476 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 4477 | else if (*s != '[' && *s != '{') |
3280af22 | 4478 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4479 | } |
4480 | } | |
9059aa12 LW |
4481 | if (PL_expect & XFAKEBRACK) { |
4482 | PL_expect &= XENUMMASK; | |
3280af22 | 4483 | PL_bufptr = s; |
cea2e8a9 | 4484 | return yylex(); /* ignore fake brackets */ |
748a9306 | 4485 | } |
cd81e915 | 4486 | start_force(PL_curforce); |
5db06880 NC |
4487 | if (PL_madskills) { |
4488 | curmad('X', newSVpvn(s-1,1)); | |
cd81e915 | 4489 | CURMAD('_', PL_thiswhite); |
5db06880 | 4490 | } |
79072805 | 4491 | force_next('}'); |
5db06880 | 4492 | #ifdef PERL_MAD |
cd81e915 | 4493 | if (!PL_thistoken) |
6b29d1f5 | 4494 | PL_thistoken = newSVpvs(""); |
5db06880 | 4495 | #endif |
79072805 | 4496 | TOKEN(';'); |
378cc40b LW |
4497 | case '&': |
4498 | s++; | |
90771dc0 | 4499 | if (*s++ == '&') |
a0d0e21e | 4500 | AOPERATOR(ANDAND); |
378cc40b | 4501 | s--; |
3280af22 | 4502 | if (PL_expect == XOPERATOR) { |
041457d9 DM |
4503 | if (PL_bufptr == PL_linestart && ckWARN(WARN_SEMICOLON) |
4504 | && isIDFIRST_lazy_if(s,UTF)) | |
7e2040f0 | 4505 | { |
57843af0 | 4506 | CopLINE_dec(PL_curcop); |
9014280d | 4507 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 4508 | CopLINE_inc(PL_curcop); |
463ee0b2 | 4509 | } |
79072805 | 4510 | BAop(OP_BIT_AND); |
463ee0b2 | 4511 | } |
79072805 | 4512 | |
3280af22 NIS |
4513 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
4514 | if (*PL_tokenbuf) { | |
4515 | PL_expect = XOPERATOR; | |
4516 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 4517 | } |
79072805 LW |
4518 | else |
4519 | PREREF('&'); | |
c07a80fd | 4520 | yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
4521 | TERM('&'); |
4522 | ||
378cc40b LW |
4523 | case '|': |
4524 | s++; | |
90771dc0 | 4525 | if (*s++ == '|') |
a0d0e21e | 4526 | AOPERATOR(OROR); |
378cc40b | 4527 | s--; |
79072805 | 4528 | BOop(OP_BIT_OR); |
378cc40b LW |
4529 | case '=': |
4530 | s++; | |
748a9306 | 4531 | { |
90771dc0 NC |
4532 | const char tmp = *s++; |
4533 | if (tmp == '=') | |
4534 | Eop(OP_EQ); | |
4535 | if (tmp == '>') | |
4536 | OPERATOR(','); | |
4537 | if (tmp == '~') | |
4538 | PMop(OP_MATCH); | |
4539 | if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX) | |
4540 | && strchr("+-*/%.^&|<",tmp)) | |
4541 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4542 | "Reversed %c= operator",(int)tmp); | |
4543 | s--; | |
4544 | if (PL_expect == XSTATE && isALPHA(tmp) && | |
4545 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
4546 | { | |
4547 | if (PL_in_eval && !PL_rsfp) { | |
4548 | d = PL_bufend; | |
4549 | while (s < d) { | |
4550 | if (*s++ == '\n') { | |
4551 | incline(s); | |
4552 | if (strnEQ(s,"=cut",4)) { | |
4553 | s = strchr(s,'\n'); | |
4554 | if (s) | |
4555 | s++; | |
4556 | else | |
4557 | s = d; | |
4558 | incline(s); | |
4559 | goto retry; | |
4560 | } | |
4561 | } | |
a5f75d66 | 4562 | } |
90771dc0 | 4563 | goto retry; |
a5f75d66 | 4564 | } |
5db06880 NC |
4565 | #ifdef PERL_MAD |
4566 | if (PL_madskills) { | |
cd81e915 | 4567 | if (!PL_thiswhite) |
6b29d1f5 | 4568 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4569 | sv_catpvn(PL_thiswhite, PL_linestart, |
5db06880 NC |
4570 | PL_bufend - PL_linestart); |
4571 | } | |
4572 | #endif | |
90771dc0 NC |
4573 | s = PL_bufend; |
4574 | PL_doextract = TRUE; | |
4575 | goto retry; | |
a5f75d66 | 4576 | } |
a0d0e21e | 4577 | } |
3280af22 | 4578 | if (PL_lex_brackets < PL_lex_formbrack) { |
c35e046a | 4579 | const char *t = s; |
51882d45 | 4580 | #ifdef PERL_STRICT_CR |
c35e046a | 4581 | while (SPACE_OR_TAB(*t)) |
51882d45 | 4582 | #else |
c35e046a | 4583 | while (SPACE_OR_TAB(*t) || *t == '\r') |
51882d45 | 4584 | #endif |
c35e046a | 4585 | t++; |
a0d0e21e LW |
4586 | if (*t == '\n' || *t == '#') { |
4587 | s--; | |
3280af22 | 4588 | PL_expect = XBLOCK; |
a0d0e21e LW |
4589 | goto leftbracket; |
4590 | } | |
79072805 | 4591 | } |
a0d0e21e LW |
4592 | yylval.ival = 0; |
4593 | OPERATOR(ASSIGNOP); | |
378cc40b LW |
4594 | case '!': |
4595 | s++; | |
90771dc0 NC |
4596 | { |
4597 | const char tmp = *s++; | |
4598 | if (tmp == '=') { | |
4599 | /* was this !=~ where !~ was meant? | |
4600 | * warn on m:!=~\s+([/?]|[msy]\W|tr\W): */ | |
4601 | ||
4602 | if (*s == '~' && ckWARN(WARN_SYNTAX)) { | |
4603 | const char *t = s+1; | |
4604 | ||
4605 | while (t < PL_bufend && isSPACE(*t)) | |
4606 | ++t; | |
4607 | ||
4608 | if (*t == '/' || *t == '?' || | |
4609 | ((*t == 'm' || *t == 's' || *t == 'y') | |
4610 | && !isALNUM(t[1])) || | |
4611 | (*t == 't' && t[1] == 'r' && !isALNUM(t[2]))) | |
4612 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4613 | "!=~ should be !~"); | |
4614 | } | |
4615 | Eop(OP_NE); | |
4616 | } | |
4617 | if (tmp == '~') | |
4618 | PMop(OP_NOT); | |
4619 | } | |
378cc40b LW |
4620 | s--; |
4621 | OPERATOR('!'); | |
4622 | case '<': | |
3280af22 | 4623 | if (PL_expect != XOPERATOR) { |
93a17b20 | 4624 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 4625 | check_uni(); |
79072805 LW |
4626 | if (s[1] == '<') |
4627 | s = scan_heredoc(s); | |
4628 | else | |
4629 | s = scan_inputsymbol(s); | |
4630 | TERM(sublex_start()); | |
378cc40b LW |
4631 | } |
4632 | s++; | |
90771dc0 NC |
4633 | { |
4634 | char tmp = *s++; | |
4635 | if (tmp == '<') | |
4636 | SHop(OP_LEFT_SHIFT); | |
4637 | if (tmp == '=') { | |
4638 | tmp = *s++; | |
4639 | if (tmp == '>') | |
4640 | Eop(OP_NCMP); | |
4641 | s--; | |
4642 | Rop(OP_LE); | |
4643 | } | |
395c3793 | 4644 | } |
378cc40b | 4645 | s--; |
79072805 | 4646 | Rop(OP_LT); |
378cc40b LW |
4647 | case '>': |
4648 | s++; | |
90771dc0 NC |
4649 | { |
4650 | const char tmp = *s++; | |
4651 | if (tmp == '>') | |
4652 | SHop(OP_RIGHT_SHIFT); | |
d4c19fe8 | 4653 | else if (tmp == '=') |
90771dc0 NC |
4654 | Rop(OP_GE); |
4655 | } | |
378cc40b | 4656 | s--; |
79072805 | 4657 | Rop(OP_GT); |
378cc40b LW |
4658 | |
4659 | case '$': | |
bbce6d69 | 4660 | CLINE; |
4661 | ||
3280af22 NIS |
4662 | if (PL_expect == XOPERATOR) { |
4663 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4664 | PL_expect = XTERM; | |
c445ea15 | 4665 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4666 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4667 | } |
8990e307 | 4668 | } |
a0d0e21e | 4669 | |
7e2040f0 | 4670 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-", s[2]))) { |
3280af22 | 4671 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
4672 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
4673 | sizeof PL_tokenbuf - 1, FALSE); | |
4674 | if (PL_expect == XOPERATOR) | |
4675 | no_op("Array length", s); | |
3280af22 | 4676 | if (!PL_tokenbuf[1]) |
a0d0e21e | 4677 | PREREF(DOLSHARP); |
3280af22 NIS |
4678 | PL_expect = XOPERATOR; |
4679 | PL_pending_ident = '#'; | |
463ee0b2 | 4680 | TOKEN(DOLSHARP); |
79072805 | 4681 | } |
bbce6d69 | 4682 | |
3280af22 | 4683 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
4684 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
4685 | sizeof PL_tokenbuf - 1, FALSE); | |
4686 | if (PL_expect == XOPERATOR) | |
4687 | no_op("Scalar", s); | |
3280af22 NIS |
4688 | if (!PL_tokenbuf[1]) { |
4689 | if (s == PL_bufend) | |
bbce6d69 | 4690 | yyerror("Final $ should be \\$ or $name"); |
4691 | PREREF('$'); | |
8990e307 | 4692 | } |
a0d0e21e | 4693 | |
bbce6d69 | 4694 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 4695 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
bbce6d69 | 4696 | yylval.opval = newSVOP(OP_CONST, 0, |
fc15ae8f | 4697 | newSViv(CopARYBASE_get(&PL_compiling))); |
bbce6d69 | 4698 | yylval.opval->op_private = OPpCONST_ARYBASE; |
4699 | TERM(THING); | |
4700 | } | |
4701 | ||
ff68c719 | 4702 | d = s; |
90771dc0 NC |
4703 | { |
4704 | const char tmp = *s; | |
4705 | if (PL_lex_state == LEX_NORMAL) | |
29595ff2 | 4706 | s = SKIPSPACE1(s); |
ff68c719 | 4707 | |
90771dc0 NC |
4708 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) |
4709 | && intuit_more(s)) { | |
4710 | if (*s == '[') { | |
4711 | PL_tokenbuf[0] = '@'; | |
4712 | if (ckWARN(WARN_SYNTAX)) { | |
c35e046a AL |
4713 | char *t = s+1; |
4714 | ||
4715 | while (isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$') | |
4716 | t++; | |
90771dc0 | 4717 | if (*t++ == ',') { |
29595ff2 | 4718 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
90771dc0 NC |
4719 | while (t < PL_bufend && *t != ']') |
4720 | t++; | |
9014280d | 4721 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
90771dc0 | 4722 | "Multidimensional syntax %.*s not supported", |
36c7798d | 4723 | (int)((t - PL_bufptr) + 1), PL_bufptr); |
90771dc0 | 4724 | } |
748a9306 | 4725 | } |
93a17b20 | 4726 | } |
90771dc0 NC |
4727 | else if (*s == '{') { |
4728 | char *t; | |
4729 | PL_tokenbuf[0] = '%'; | |
4730 | if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX) | |
4731 | && (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
4732 | { | |
4733 | char tmpbuf[sizeof PL_tokenbuf]; | |
c35e046a AL |
4734 | do { |
4735 | t++; | |
4736 | } while (isSPACE(*t)); | |
90771dc0 | 4737 | if (isIDFIRST_lazy_if(t,UTF)) { |
5f66b61c | 4738 | STRLEN dummylen; |
90771dc0 | 4739 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, |
5f66b61c | 4740 | &dummylen); |
c35e046a AL |
4741 | while (isSPACE(*t)) |
4742 | t++; | |
90771dc0 NC |
4743 | if (*t == ';' && get_cv(tmpbuf, FALSE)) |
4744 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4745 | "You need to quote \"%s\"", | |
4746 | tmpbuf); | |
4747 | } | |
4748 | } | |
4749 | } | |
93a17b20 | 4750 | } |
bbce6d69 | 4751 | |
90771dc0 NC |
4752 | PL_expect = XOPERATOR; |
4753 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { | |
4754 | const bool islop = (PL_last_lop == PL_oldoldbufptr); | |
4755 | if (!islop || PL_last_lop_op == OP_GREPSTART) | |
4756 | PL_expect = XOPERATOR; | |
4757 | else if (strchr("$@\"'`q", *s)) | |
4758 | PL_expect = XTERM; /* e.g. print $fh "foo" */ | |
4759 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) | |
4760 | PL_expect = XTERM; /* e.g. print $fh &sub */ | |
4761 | else if (isIDFIRST_lazy_if(s,UTF)) { | |
4762 | char tmpbuf[sizeof PL_tokenbuf]; | |
4763 | int t2; | |
4764 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
5458a98a | 4765 | if ((t2 = keyword(tmpbuf, len, 0))) { |
90771dc0 NC |
4766 | /* binary operators exclude handle interpretations */ |
4767 | switch (t2) { | |
4768 | case -KEY_x: | |
4769 | case -KEY_eq: | |
4770 | case -KEY_ne: | |
4771 | case -KEY_gt: | |
4772 | case -KEY_lt: | |
4773 | case -KEY_ge: | |
4774 | case -KEY_le: | |
4775 | case -KEY_cmp: | |
4776 | break; | |
4777 | default: | |
4778 | PL_expect = XTERM; /* e.g. print $fh length() */ | |
4779 | break; | |
4780 | } | |
4781 | } | |
4782 | else { | |
4783 | PL_expect = XTERM; /* e.g. print $fh subr() */ | |
84902520 TB |
4784 | } |
4785 | } | |
90771dc0 NC |
4786 | else if (isDIGIT(*s)) |
4787 | PL_expect = XTERM; /* e.g. print $fh 3 */ | |
4788 | else if (*s == '.' && isDIGIT(s[1])) | |
4789 | PL_expect = XTERM; /* e.g. print $fh .3 */ | |
4790 | else if ((*s == '?' || *s == '-' || *s == '+') | |
4791 | && !isSPACE(s[1]) && s[1] != '=') | |
4792 | PL_expect = XTERM; /* e.g. print $fh -1 */ | |
4793 | else if (*s == '/' && !isSPACE(s[1]) && s[1] != '=' | |
4794 | && s[1] != '/') | |
4795 | PL_expect = XTERM; /* e.g. print $fh /.../ | |
4796 | XXX except DORDOR operator | |
4797 | */ | |
4798 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) | |
4799 | && s[2] != '=') | |
4800 | PL_expect = XTERM; /* print $fh <<"EOF" */ | |
93a17b20 | 4801 | } |
bbce6d69 | 4802 | } |
3280af22 | 4803 | PL_pending_ident = '$'; |
79072805 | 4804 | TOKEN('$'); |
378cc40b LW |
4805 | |
4806 | case '@': | |
3280af22 | 4807 | if (PL_expect == XOPERATOR) |
bbce6d69 | 4808 | no_op("Array", s); |
3280af22 NIS |
4809 | PL_tokenbuf[0] = '@'; |
4810 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
4811 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 4812 | PREREF('@'); |
4813 | } | |
3280af22 | 4814 | if (PL_lex_state == LEX_NORMAL) |
29595ff2 | 4815 | s = SKIPSPACE1(s); |
3280af22 | 4816 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 4817 | if (*s == '{') |
3280af22 | 4818 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
4819 | |
4820 | /* Warn about @ where they meant $. */ | |
041457d9 DM |
4821 | if (*s == '[' || *s == '{') { |
4822 | if (ckWARN(WARN_SYNTAX)) { | |
f54cb97a | 4823 | const char *t = s + 1; |
7e2040f0 | 4824 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
4825 | t++; |
4826 | if (*t == '}' || *t == ']') { | |
4827 | t++; | |
29595ff2 | 4828 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
9014280d | 4829 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 4830 | "Scalar value %.*s better written as $%.*s", |
36c7798d DM |
4831 | (int)(t-PL_bufptr), PL_bufptr, |
4832 | (int)(t-PL_bufptr-1), PL_bufptr+1); | |
a0d0e21e | 4833 | } |
93a17b20 LW |
4834 | } |
4835 | } | |
463ee0b2 | 4836 | } |
3280af22 | 4837 | PL_pending_ident = '@'; |
79072805 | 4838 | TERM('@'); |
378cc40b | 4839 | |
c963b151 | 4840 | case '/': /* may be division, defined-or, or pattern */ |
6f33ba73 RGS |
4841 | if (PL_expect == XTERMORDORDOR && s[1] == '/') { |
4842 | s += 2; | |
4843 | AOPERATOR(DORDOR); | |
4844 | } | |
c963b151 BD |
4845 | case '?': /* may either be conditional or pattern */ |
4846 | if(PL_expect == XOPERATOR) { | |
90771dc0 | 4847 | char tmp = *s++; |
c963b151 BD |
4848 | if(tmp == '?') { |
4849 | OPERATOR('?'); | |
4850 | } | |
4851 | else { | |
4852 | tmp = *s++; | |
4853 | if(tmp == '/') { | |
4854 | /* A // operator. */ | |
4855 | AOPERATOR(DORDOR); | |
4856 | } | |
4857 | else { | |
4858 | s--; | |
4859 | Mop(OP_DIVIDE); | |
4860 | } | |
4861 | } | |
4862 | } | |
4863 | else { | |
4864 | /* Disable warning on "study /blah/" */ | |
4865 | if (PL_oldoldbufptr == PL_last_uni | |
4866 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
4867 | || memNE(PL_last_uni, "study", 5) | |
4868 | || isALNUM_lazy_if(PL_last_uni+5,UTF) | |
4869 | )) | |
4870 | check_uni(); | |
4871 | s = scan_pat(s,OP_MATCH); | |
4872 | TERM(sublex_start()); | |
4873 | } | |
378cc40b LW |
4874 | |
4875 | case '.': | |
51882d45 GS |
4876 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
4877 | #ifdef PERL_STRICT_CR | |
4878 | && s[1] == '\n' | |
4879 | #else | |
4880 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
4881 | #endif | |
4882 | && (s == PL_linestart || s[-1] == '\n') ) | |
4883 | { | |
3280af22 NIS |
4884 | PL_lex_formbrack = 0; |
4885 | PL_expect = XSTATE; | |
79072805 LW |
4886 | goto rightbracket; |
4887 | } | |
3280af22 | 4888 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
90771dc0 | 4889 | char tmp = *s++; |
a687059c LW |
4890 | if (*s == tmp) { |
4891 | s++; | |
2f3197b3 LW |
4892 | if (*s == tmp) { |
4893 | s++; | |
79072805 | 4894 | yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
4895 | } |
4896 | else | |
79072805 | 4897 | yylval.ival = 0; |
378cc40b | 4898 | OPERATOR(DOTDOT); |
a687059c | 4899 | } |
3280af22 | 4900 | if (PL_expect != XOPERATOR) |
2f3197b3 | 4901 | check_uni(); |
79072805 | 4902 | Aop(OP_CONCAT); |
378cc40b LW |
4903 | } |
4904 | /* FALL THROUGH */ | |
4905 | case '0': case '1': case '2': case '3': case '4': | |
4906 | case '5': case '6': case '7': case '8': case '9': | |
b73d6f50 | 4907 | s = scan_num(s, &yylval); |
931e0695 | 4908 | DEBUG_T( { printbuf("### Saw number in %s\n", s); } ); |
3280af22 | 4909 | if (PL_expect == XOPERATOR) |
8990e307 | 4910 | no_op("Number",s); |
79072805 LW |
4911 | TERM(THING); |
4912 | ||
4913 | case '\'': | |
5db06880 | 4914 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 4915 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
4916 | if (PL_expect == XOPERATOR) { |
4917 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4918 | PL_expect = XTERM; | |
c445ea15 | 4919 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4920 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4921 | } |
463ee0b2 | 4922 | else |
8990e307 | 4923 | no_op("String",s); |
463ee0b2 | 4924 | } |
79072805 | 4925 | if (!s) |
d4c19fe8 | 4926 | missingterm(NULL); |
79072805 LW |
4927 | yylval.ival = OP_CONST; |
4928 | TERM(sublex_start()); | |
4929 | ||
4930 | case '"': | |
5db06880 | 4931 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 4932 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
4933 | if (PL_expect == XOPERATOR) { |
4934 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4935 | PL_expect = XTERM; | |
c445ea15 | 4936 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4937 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4938 | } |
463ee0b2 | 4939 | else |
8990e307 | 4940 | no_op("String",s); |
463ee0b2 | 4941 | } |
79072805 | 4942 | if (!s) |
d4c19fe8 | 4943 | missingterm(NULL); |
4633a7c4 | 4944 | yylval.ival = OP_CONST; |
cfd0369c NC |
4945 | /* FIXME. I think that this can be const if char *d is replaced by |
4946 | more localised variables. */ | |
3280af22 | 4947 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
63cd0674 | 4948 | if (*d == '$' || *d == '@' || *d == '\\' || !UTF8_IS_INVARIANT((U8)*d)) { |
4633a7c4 LW |
4949 | yylval.ival = OP_STRINGIFY; |
4950 | break; | |
4951 | } | |
4952 | } | |
79072805 LW |
4953 | TERM(sublex_start()); |
4954 | ||
4955 | case '`': | |
5db06880 | 4956 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 4957 | DEBUG_T( { printbuf("### Saw backtick string before %s\n", s); } ); |
3280af22 | 4958 | if (PL_expect == XOPERATOR) |
8990e307 | 4959 | no_op("Backticks",s); |
79072805 | 4960 | if (!s) |
d4c19fe8 | 4961 | missingterm(NULL); |
79072805 LW |
4962 | yylval.ival = OP_BACKTICK; |
4963 | set_csh(); | |
4964 | TERM(sublex_start()); | |
4965 | ||
4966 | case '\\': | |
4967 | s++; | |
041457d9 | 4968 | if (PL_lex_inwhat && isDIGIT(*s) && ckWARN(WARN_SYNTAX)) |
9014280d | 4969 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression", |
599cee73 | 4970 | *s, *s); |
3280af22 | 4971 | if (PL_expect == XOPERATOR) |
8990e307 | 4972 | no_op("Backslash",s); |
79072805 LW |
4973 | OPERATOR(REFGEN); |
4974 | ||
a7cb1f99 | 4975 | case 'v': |
e526c9e6 | 4976 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
f54cb97a | 4977 | char *start = s + 2; |
dd629d5b | 4978 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
4979 | start++; |
4980 | if (*start == '.' && isDIGIT(start[1])) { | |
b73d6f50 | 4981 | s = scan_num(s, &yylval); |
a7cb1f99 GS |
4982 | TERM(THING); |
4983 | } | |
e526c9e6 | 4984 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
6f33ba73 RGS |
4985 | else if (!isALPHA(*start) && (PL_expect == XTERM |
4986 | || PL_expect == XREF || PL_expect == XSTATE | |
4987 | || PL_expect == XTERMORDORDOR)) { | |
d4c19fe8 | 4988 | /* XXX Use gv_fetchpvn rather than stomping on a const string */ |
f54cb97a | 4989 | const char c = *start; |
e526c9e6 GS |
4990 | GV *gv; |
4991 | *start = '\0'; | |
f776e3cd | 4992 | gv = gv_fetchpv(s, 0, SVt_PVCV); |
e526c9e6 GS |
4993 | *start = c; |
4994 | if (!gv) { | |
b73d6f50 | 4995 | s = scan_num(s, &yylval); |
e526c9e6 GS |
4996 | TERM(THING); |
4997 | } | |
4998 | } | |
a7cb1f99 GS |
4999 | } |
5000 | goto keylookup; | |
79072805 | 5001 | case 'x': |
3280af22 | 5002 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
5003 | s++; |
5004 | Mop(OP_REPEAT); | |
2f3197b3 | 5005 | } |
79072805 LW |
5006 | goto keylookup; |
5007 | ||
378cc40b | 5008 | case '_': |
79072805 LW |
5009 | case 'a': case 'A': |
5010 | case 'b': case 'B': | |
5011 | case 'c': case 'C': | |
5012 | case 'd': case 'D': | |
5013 | case 'e': case 'E': | |
5014 | case 'f': case 'F': | |
5015 | case 'g': case 'G': | |
5016 | case 'h': case 'H': | |
5017 | case 'i': case 'I': | |
5018 | case 'j': case 'J': | |
5019 | case 'k': case 'K': | |
5020 | case 'l': case 'L': | |
5021 | case 'm': case 'M': | |
5022 | case 'n': case 'N': | |
5023 | case 'o': case 'O': | |
5024 | case 'p': case 'P': | |
5025 | case 'q': case 'Q': | |
5026 | case 'r': case 'R': | |
5027 | case 's': case 'S': | |
5028 | case 't': case 'T': | |
5029 | case 'u': case 'U': | |
a7cb1f99 | 5030 | case 'V': |
79072805 LW |
5031 | case 'w': case 'W': |
5032 | case 'X': | |
5033 | case 'y': case 'Y': | |
5034 | case 'z': case 'Z': | |
5035 | ||
49dc05e3 | 5036 | keylookup: { |
90771dc0 | 5037 | I32 tmp; |
10edeb5d JH |
5038 | |
5039 | orig_keyword = 0; | |
5040 | gv = NULL; | |
5041 | gvp = NULL; | |
49dc05e3 | 5042 | |
3280af22 NIS |
5043 | PL_bufptr = s; |
5044 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 5045 | |
5046 | /* Some keywords can be followed by any delimiter, including ':' */ | |
155aba94 GS |
5047 | tmp = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
5048 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || | |
5049 | (PL_tokenbuf[0] == 'q' && | |
5050 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 5051 | |
5052 | /* x::* is just a word, unless x is "CORE" */ | |
3280af22 | 5053 | if (!tmp && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
5054 | goto just_a_word; |
5055 | ||
3643fb5f | 5056 | d = s; |
3280af22 | 5057 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
5058 | d++; /* no comments skipped here, or s### is misparsed */ |
5059 | ||
5060 | /* Is this a label? */ | |
3280af22 NIS |
5061 | if (!tmp && PL_expect == XSTATE |
5062 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
8ebc5c01 | 5063 | s = d + 1; |
3280af22 | 5064 | yylval.pval = savepv(PL_tokenbuf); |
8ebc5c01 | 5065 | CLINE; |
5066 | TOKEN(LABEL); | |
3643fb5f CS |
5067 | } |
5068 | ||
5069 | /* Check for keywords */ | |
5458a98a | 5070 | tmp = keyword(PL_tokenbuf, len, 0); |
748a9306 LW |
5071 | |
5072 | /* Is this a word before a => operator? */ | |
1c3923b3 | 5073 | if (*d == '=' && d[1] == '>') { |
748a9306 | 5074 | CLINE; |
d0a148a6 NC |
5075 | yylval.opval |
5076 | = (OP*)newSVOP(OP_CONST, 0, | |
5077 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
748a9306 LW |
5078 | yylval.opval->op_private = OPpCONST_BARE; |
5079 | TERM(WORD); | |
5080 | } | |
5081 | ||
a0d0e21e | 5082 | if (tmp < 0) { /* second-class keyword? */ |
cbbf8932 AL |
5083 | GV *ogv = NULL; /* override (winner) */ |
5084 | GV *hgv = NULL; /* hidden (loser) */ | |
3280af22 | 5085 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 5086 | CV *cv; |
90e5519e | 5087 | if ((gv = gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVCV)) && |
56f7f34b CS |
5088 | (cv = GvCVu(gv))) |
5089 | { | |
5090 | if (GvIMPORTED_CV(gv)) | |
5091 | ogv = gv; | |
5092 | else if (! CvMETHOD(cv)) | |
5093 | hgv = gv; | |
5094 | } | |
5095 | if (!ogv && | |
3280af22 NIS |
5096 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
5097 | (gv = *gvp) != (GV*)&PL_sv_undef && | |
56f7f34b CS |
5098 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
5099 | { | |
5100 | ogv = gv; | |
5101 | } | |
5102 | } | |
5103 | if (ogv) { | |
30fe34ed | 5104 | orig_keyword = tmp; |
56f7f34b | 5105 | tmp = 0; /* overridden by import or by GLOBAL */ |
6e7b2336 GS |
5106 | } |
5107 | else if (gv && !gvp | |
5108 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
d0456cad | 5109 | && GvCVu(gv) |
017a3ce5 | 5110 | && !hv_fetchs(GvHVn(PL_incgv), "Thread.pm", FALSE)) |
6e7b2336 GS |
5111 | { |
5112 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 5113 | } |
56f7f34b CS |
5114 | else { /* no override */ |
5115 | tmp = -tmp; | |
ac206dc8 | 5116 | if (tmp == KEY_dump && ckWARN(WARN_MISC)) { |
9014280d | 5117 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
ac206dc8 RGS |
5118 | "dump() better written as CORE::dump()"); |
5119 | } | |
a0714e2c | 5120 | gv = NULL; |
56f7f34b | 5121 | gvp = 0; |
041457d9 DM |
5122 | if (hgv && tmp != KEY_x && tmp != KEY_CORE |
5123 | && ckWARN(WARN_AMBIGUOUS)) /* never ambiguous */ | |
9014280d | 5124 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 5125 | "Ambiguous call resolved as CORE::%s(), %s", |
2f3ca594 | 5126 | GvENAME(hgv), "qualify as such or use &"); |
49dc05e3 | 5127 | } |
a0d0e21e LW |
5128 | } |
5129 | ||
5130 | reserved_word: | |
5131 | switch (tmp) { | |
79072805 LW |
5132 | |
5133 | default: /* not a keyword */ | |
0bfa2a8a NC |
5134 | /* Trade off - by using this evil construction we can pull the |
5135 | variable gv into the block labelled keylookup. If not, then | |
5136 | we have to give it function scope so that the goto from the | |
5137 | earlier ':' case doesn't bypass the initialisation. */ | |
5138 | if (0) { | |
5139 | just_a_word_zero_gv: | |
5140 | gv = NULL; | |
5141 | gvp = NULL; | |
8bee0991 | 5142 | orig_keyword = 0; |
0bfa2a8a | 5143 | } |
93a17b20 | 5144 | just_a_word: { |
96e4d5b1 | 5145 | SV *sv; |
ce29ac45 | 5146 | int pkgname = 0; |
f54cb97a | 5147 | const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
5069cc75 | 5148 | CV *cv; |
5db06880 | 5149 | #ifdef PERL_MAD |
cd81e915 | 5150 | SV *nextPL_nextwhite = 0; |
5db06880 NC |
5151 | #endif |
5152 | ||
8990e307 LW |
5153 | |
5154 | /* Get the rest if it looks like a package qualifier */ | |
5155 | ||
155aba94 | 5156 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 5157 | STRLEN morelen; |
3280af22 | 5158 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
5159 | TRUE, &morelen); |
5160 | if (!morelen) | |
cea2e8a9 | 5161 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 5162 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 5163 | len += morelen; |
ce29ac45 | 5164 | pkgname = 1; |
a0d0e21e | 5165 | } |
8990e307 | 5166 | |
3280af22 NIS |
5167 | if (PL_expect == XOPERATOR) { |
5168 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 5169 | CopLINE_dec(PL_curcop); |
9014280d | 5170 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 5171 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
5172 | } |
5173 | else | |
54310121 | 5174 | no_op("Bareword",s); |
463ee0b2 | 5175 | } |
8990e307 | 5176 | |
c3e0f903 GS |
5177 | /* Look for a subroutine with this name in current package, |
5178 | unless name is "Foo::", in which case Foo is a bearword | |
5179 | (and a package name). */ | |
5180 | ||
5db06880 | 5181 | if (len > 2 && !PL_madskills && |
3280af22 | 5182 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 5183 | { |
f776e3cd | 5184 | if (ckWARN(WARN_BAREWORD) |
90e5519e | 5185 | && ! gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVHV)) |
9014280d | 5186 | Perl_warner(aTHX_ packWARN(WARN_BAREWORD), |
599cee73 | 5187 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 5188 | PL_tokenbuf); |
c3e0f903 | 5189 | len -= 2; |
3280af22 | 5190 | PL_tokenbuf[len] = '\0'; |
a0714e2c | 5191 | gv = NULL; |
c3e0f903 GS |
5192 | gvp = 0; |
5193 | } | |
5194 | else { | |
62d55b22 NC |
5195 | if (!gv) { |
5196 | /* Mustn't actually add anything to a symbol table. | |
5197 | But also don't want to "initialise" any placeholder | |
5198 | constants that might already be there into full | |
5199 | blown PVGVs with attached PVCV. */ | |
90e5519e NC |
5200 | gv = gv_fetchpvn_flags(PL_tokenbuf, len, |
5201 | GV_NOADD_NOINIT, SVt_PVCV); | |
62d55b22 | 5202 | } |
b3d904f3 | 5203 | len = 0; |
c3e0f903 GS |
5204 | } |
5205 | ||
5206 | /* if we saw a global override before, get the right name */ | |
8990e307 | 5207 | |
49dc05e3 | 5208 | if (gvp) { |
396482e1 | 5209 | sv = newSVpvs("CORE::GLOBAL::"); |
3280af22 | 5210 | sv_catpv(sv,PL_tokenbuf); |
49dc05e3 | 5211 | } |
8a7a129d NC |
5212 | else { |
5213 | /* If len is 0, newSVpv does strlen(), which is correct. | |
5214 | If len is non-zero, then it will be the true length, | |
5215 | and so the scalar will be created correctly. */ | |
5216 | sv = newSVpv(PL_tokenbuf,len); | |
5217 | } | |
5db06880 | 5218 | #ifdef PERL_MAD |
cd81e915 NC |
5219 | if (PL_madskills && !PL_thistoken) { |
5220 | char *start = SvPVX(PL_linestr) + PL_realtokenstart; | |
5221 | PL_thistoken = newSVpv(start,s - start); | |
5222 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
5223 | } |
5224 | #endif | |
8990e307 | 5225 | |
a0d0e21e LW |
5226 | /* Presume this is going to be a bareword of some sort. */ |
5227 | ||
5228 | CLINE; | |
49dc05e3 | 5229 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
a0d0e21e | 5230 | yylval.opval->op_private = OPpCONST_BARE; |
8f8cf39c JH |
5231 | /* UTF-8 package name? */ |
5232 | if (UTF && !IN_BYTES && | |
95a20fc0 | 5233 | is_utf8_string((U8*)SvPVX_const(sv), SvCUR(sv))) |
8f8cf39c | 5234 | SvUTF8_on(sv); |
a0d0e21e | 5235 | |
c3e0f903 GS |
5236 | /* And if "Foo::", then that's what it certainly is. */ |
5237 | ||
5238 | if (len) | |
5239 | goto safe_bareword; | |
5240 | ||
5069cc75 NC |
5241 | /* Do the explicit type check so that we don't need to force |
5242 | the initialisation of the symbol table to have a real GV. | |
5243 | Beware - gv may not really be a PVGV, cv may not really be | |
5244 | a PVCV, (because of the space optimisations that gv_init | |
5245 | understands) But they're true if for this symbol there is | |
5246 | respectively a typeglob and a subroutine. | |
5247 | */ | |
5248 | cv = gv ? ((SvTYPE(gv) == SVt_PVGV) | |
5249 | /* Real typeglob, so get the real subroutine: */ | |
5250 | ? GvCVu(gv) | |
5251 | /* A proxy for a subroutine in this package? */ | |
5252 | : SvOK(gv) ? (CV *) gv : NULL) | |
5253 | : NULL; | |
5254 | ||
8990e307 LW |
5255 | /* See if it's the indirect object for a list operator. */ |
5256 | ||
3280af22 NIS |
5257 | if (PL_oldoldbufptr && |
5258 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
5259 | (PL_oldoldbufptr == PL_last_lop |
5260 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 5261 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
5262 | (PL_expect == XREF || |
5263 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 5264 | { |
748a9306 LW |
5265 | bool immediate_paren = *s == '('; |
5266 | ||
a0d0e21e | 5267 | /* (Now we can afford to cross potential line boundary.) */ |
cd81e915 | 5268 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5db06880 | 5269 | #ifdef PERL_MAD |
cd81e915 | 5270 | PL_nextwhite = nextPL_nextwhite; /* assume no & deception */ |
5db06880 | 5271 | #endif |
a0d0e21e LW |
5272 | |
5273 | /* Two barewords in a row may indicate method call. */ | |
5274 | ||
62d55b22 NC |
5275 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && |
5276 | (tmp = intuit_method(s, gv, cv))) | |
bbf60fe6 | 5277 | return REPORT(tmp); |
a0d0e21e LW |
5278 | |
5279 | /* If not a declared subroutine, it's an indirect object. */ | |
5280 | /* (But it's an indir obj regardless for sort.) */ | |
7294df96 | 5281 | /* Also, if "_" follows a filetest operator, it's a bareword */ |
a0d0e21e | 5282 | |
7294df96 RGS |
5283 | if ( |
5284 | ( !immediate_paren && (PL_last_lop_op == OP_SORT || | |
5069cc75 | 5285 | ((!gv || !cv) && |
a9ef352a | 5286 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 5287 | PL_last_lop_op != OP_GREPSTART)))) |
7294df96 RGS |
5288 | || (PL_tokenbuf[0] == '_' && PL_tokenbuf[1] == '\0' |
5289 | && ((PL_opargs[PL_last_lop_op] & OA_CLASS_MASK) == OA_FILESTATOP)) | |
5290 | ) | |
a9ef352a | 5291 | { |
3280af22 | 5292 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 5293 | goto bareword; |
93a17b20 LW |
5294 | } |
5295 | } | |
8990e307 | 5296 | |
3280af22 | 5297 | PL_expect = XOPERATOR; |
5db06880 NC |
5298 | #ifdef PERL_MAD |
5299 | if (isSPACE(*s)) | |
cd81e915 NC |
5300 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5301 | PL_nextwhite = nextPL_nextwhite; | |
5db06880 | 5302 | #else |
8990e307 | 5303 | s = skipspace(s); |
5db06880 | 5304 | #endif |
1c3923b3 GS |
5305 | |
5306 | /* Is this a word before a => operator? */ | |
ce29ac45 | 5307 | if (*s == '=' && s[1] == '>' && !pkgname) { |
1c3923b3 GS |
5308 | CLINE; |
5309 | sv_setpv(((SVOP*)yylval.opval)->op_sv, PL_tokenbuf); | |
0064a8a9 | 5310 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
7948272d | 5311 | SvUTF8_on(((SVOP*)yylval.opval)->op_sv); |
1c3923b3 GS |
5312 | TERM(WORD); |
5313 | } | |
5314 | ||
5315 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 5316 | if (*s == '(') { |
79072805 | 5317 | CLINE; |
5069cc75 | 5318 | if (cv) { |
c35e046a AL |
5319 | d = s + 1; |
5320 | while (SPACE_OR_TAB(*d)) | |
5321 | d++; | |
62d55b22 | 5322 | if (*d == ')' && (sv = gv_const_sv(gv))) { |
96e4d5b1 | 5323 | s = d + 1; |
5db06880 NC |
5324 | #ifdef PERL_MAD |
5325 | if (PL_madskills) { | |
cd81e915 NC |
5326 | char *par = SvPVX(PL_linestr) + PL_realtokenstart; |
5327 | sv_catpvn(PL_thistoken, par, s - par); | |
5328 | if (PL_nextwhite) { | |
5329 | sv_free(PL_nextwhite); | |
5330 | PL_nextwhite = 0; | |
5db06880 NC |
5331 | } |
5332 | } | |
5333 | #endif | |
96e4d5b1 | 5334 | goto its_constant; |
5335 | } | |
5336 | } | |
5db06880 NC |
5337 | #ifdef PERL_MAD |
5338 | if (PL_madskills) { | |
cd81e915 NC |
5339 | PL_nextwhite = PL_thiswhite; |
5340 | PL_thiswhite = 0; | |
5db06880 | 5341 | } |
cd81e915 | 5342 | start_force(PL_curforce); |
5db06880 | 5343 | #endif |
9ded7720 | 5344 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 5345 | PL_expect = XOPERATOR; |
5db06880 NC |
5346 | #ifdef PERL_MAD |
5347 | if (PL_madskills) { | |
cd81e915 NC |
5348 | PL_nextwhite = nextPL_nextwhite; |
5349 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5350 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5351 | } |
5352 | #endif | |
93a17b20 | 5353 | force_next(WORD); |
c07a80fd | 5354 | yylval.ival = 0; |
463ee0b2 | 5355 | TOKEN('&'); |
79072805 | 5356 | } |
93a17b20 | 5357 | |
a0d0e21e | 5358 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 5359 | |
62d55b22 | 5360 | if ((*s == '$' || *s == '{') && (!gv || !cv)) { |
3280af22 NIS |
5361 | PL_last_lop = PL_oldbufptr; |
5362 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 5363 | PREBLOCK(METHOD); |
463ee0b2 LW |
5364 | } |
5365 | ||
8990e307 LW |
5366 | /* If followed by a bareword, see if it looks like indir obj. */ |
5367 | ||
30fe34ed RGS |
5368 | if (!orig_keyword |
5369 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
62d55b22 | 5370 | && (tmp = intuit_method(s, gv, cv))) |
bbf60fe6 | 5371 | return REPORT(tmp); |
93a17b20 | 5372 | |
8990e307 LW |
5373 | /* Not a method, so call it a subroutine (if defined) */ |
5374 | ||
5069cc75 | 5375 | if (cv) { |
0453d815 | 5376 | if (lastchar == '-' && ckWARN_d(WARN_AMBIGUOUS)) |
9014280d | 5377 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5378 | "Ambiguous use of -%s resolved as -&%s()", |
3280af22 | 5379 | PL_tokenbuf, PL_tokenbuf); |
89bfa8cd | 5380 | /* Check for a constant sub */ |
62d55b22 | 5381 | if ((sv = gv_const_sv(gv))) { |
96e4d5b1 | 5382 | its_constant: |
5383 | SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv); | |
b37c2d43 | 5384 | ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc_simple(sv); |
96e4d5b1 | 5385 | yylval.opval->op_private = 0; |
5386 | TOKEN(WORD); | |
89bfa8cd | 5387 | } |
5388 | ||
a5f75d66 | 5389 | /* Resolve to GV now. */ |
62d55b22 | 5390 | if (SvTYPE(gv) != SVt_PVGV) { |
b3d904f3 | 5391 | gv = gv_fetchpv(PL_tokenbuf, 0, SVt_PVCV); |
62d55b22 NC |
5392 | assert (SvTYPE(gv) == SVt_PVGV); |
5393 | /* cv must have been some sort of placeholder, so | |
5394 | now needs replacing with a real code reference. */ | |
5395 | cv = GvCV(gv); | |
5396 | } | |
5397 | ||
a5f75d66 AD |
5398 | op_free(yylval.opval); |
5399 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
9675f7ac | 5400 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
7a52d87a | 5401 | PL_last_lop = PL_oldbufptr; |
bf848113 | 5402 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 | 5403 | /* Is there a prototype? */ |
5db06880 NC |
5404 | if ( |
5405 | #ifdef PERL_MAD | |
5406 | cv && | |
5407 | #endif | |
5408 | SvPOK(cv)) { | |
5f66b61c AL |
5409 | STRLEN protolen; |
5410 | const char *proto = SvPV_const((SV*)cv, protolen); | |
5411 | if (!protolen) | |
4633a7c4 | 5412 | TERM(FUNC0SUB); |
770526c1 | 5413 | if (*proto == '$' && proto[1] == '\0') |
4633a7c4 | 5414 | OPERATOR(UNIOPSUB); |
0f5d0394 AE |
5415 | while (*proto == ';') |
5416 | proto++; | |
7a52d87a | 5417 | if (*proto == '&' && *s == '{') { |
10edeb5d JH |
5418 | sv_setpv(PL_subname, |
5419 | (const char *) | |
5420 | (PL_curstash ? | |
5421 | "__ANON__" : "__ANON__::__ANON__")); | |
4633a7c4 LW |
5422 | PREBLOCK(LSTOPSUB); |
5423 | } | |
a9ef352a | 5424 | } |
5db06880 NC |
5425 | #ifdef PERL_MAD |
5426 | { | |
5427 | if (PL_madskills) { | |
cd81e915 NC |
5428 | PL_nextwhite = PL_thiswhite; |
5429 | PL_thiswhite = 0; | |
5db06880 | 5430 | } |
cd81e915 | 5431 | start_force(PL_curforce); |
5db06880 NC |
5432 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
5433 | PL_expect = XTERM; | |
5434 | if (PL_madskills) { | |
cd81e915 NC |
5435 | PL_nextwhite = nextPL_nextwhite; |
5436 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5437 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5438 | } |
5439 | force_next(WORD); | |
5440 | TOKEN(NOAMP); | |
5441 | } | |
5442 | } | |
5443 | ||
5444 | /* Guess harder when madskills require "best effort". */ | |
5445 | if (PL_madskills && (!gv || !GvCVu(gv))) { | |
5446 | int probable_sub = 0; | |
5447 | if (strchr("\"'`$@%0123456789!*+{[<", *s)) | |
5448 | probable_sub = 1; | |
5449 | else if (isALPHA(*s)) { | |
5450 | char tmpbuf[1024]; | |
5451 | STRLEN tmplen; | |
5452 | d = s; | |
5453 | d = scan_word(d, tmpbuf, sizeof tmpbuf, TRUE, &tmplen); | |
5458a98a | 5454 | if (!keyword(tmpbuf, tmplen, 0)) |
5db06880 NC |
5455 | probable_sub = 1; |
5456 | else { | |
5457 | while (d < PL_bufend && isSPACE(*d)) | |
5458 | d++; | |
5459 | if (*d == '=' && d[1] == '>') | |
5460 | probable_sub = 1; | |
5461 | } | |
5462 | } | |
5463 | if (probable_sub) { | |
5464 | gv = gv_fetchpv(PL_tokenbuf, TRUE, SVt_PVCV); | |
5465 | op_free(yylval.opval); | |
5466 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
5467 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; | |
5468 | PL_last_lop = PL_oldbufptr; | |
5469 | PL_last_lop_op = OP_ENTERSUB; | |
cd81e915 NC |
5470 | PL_nextwhite = PL_thiswhite; |
5471 | PL_thiswhite = 0; | |
5472 | start_force(PL_curforce); | |
5db06880 NC |
5473 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
5474 | PL_expect = XTERM; | |
cd81e915 NC |
5475 | PL_nextwhite = nextPL_nextwhite; |
5476 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5477 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5478 | force_next(WORD); |
5479 | TOKEN(NOAMP); | |
5480 | } | |
5481 | #else | |
9ded7720 | 5482 | NEXTVAL_NEXTTOKE.opval = yylval.opval; |
3280af22 | 5483 | PL_expect = XTERM; |
8990e307 LW |
5484 | force_next(WORD); |
5485 | TOKEN(NOAMP); | |
5db06880 | 5486 | #endif |
8990e307 | 5487 | } |
748a9306 | 5488 | |
8990e307 LW |
5489 | /* Call it a bare word */ |
5490 | ||
5603f27d GS |
5491 | if (PL_hints & HINT_STRICT_SUBS) |
5492 | yylval.opval->op_private |= OPpCONST_STRICT; | |
5493 | else { | |
5494 | bareword: | |
041457d9 DM |
5495 | if (lastchar != '-') { |
5496 | if (ckWARN(WARN_RESERVED)) { | |
c35e046a AL |
5497 | d = PL_tokenbuf; |
5498 | while (isLOWER(*d)) | |
5499 | d++; | |
238ae712 | 5500 | if (!*d && !gv_stashpv(PL_tokenbuf,FALSE)) |
9014280d | 5501 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
5502 | PL_tokenbuf); |
5503 | } | |
748a9306 LW |
5504 | } |
5505 | } | |
c3e0f903 GS |
5506 | |
5507 | safe_bareword: | |
3792a11b NC |
5508 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&') |
5509 | && ckWARN_d(WARN_AMBIGUOUS)) { | |
9014280d | 5510 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5511 | "Operator or semicolon missing before %c%s", |
3280af22 | 5512 | lastchar, PL_tokenbuf); |
9014280d | 5513 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5514 | "Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
5515 | lastchar, lastchar); |
5516 | } | |
93a17b20 | 5517 | TOKEN(WORD); |
79072805 | 5518 | } |
79072805 | 5519 | |
68dc0745 | 5520 | case KEY___FILE__: |
46fc3d4c | 5521 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 5522 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 5523 | TERM(THING); |
5524 | ||
79072805 | 5525 | case KEY___LINE__: |
cf2093f6 | 5526 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 5527 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 5528 | TERM(THING); |
68dc0745 | 5529 | |
5530 | case KEY___PACKAGE__: | |
5531 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, | |
3280af22 | 5532 | (PL_curstash |
5aaec2b4 | 5533 | ? newSVhek(HvNAME_HEK(PL_curstash)) |
3280af22 | 5534 | : &PL_sv_undef)); |
79072805 | 5535 | TERM(THING); |
79072805 | 5536 | |
e50aee73 | 5537 | case KEY___DATA__: |
79072805 LW |
5538 | case KEY___END__: { |
5539 | GV *gv; | |
3280af22 | 5540 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
bfed75c6 | 5541 | const char *pname = "main"; |
3280af22 | 5542 | if (PL_tokenbuf[2] == 'D') |
bfcb3514 | 5543 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
f776e3cd NC |
5544 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD, |
5545 | SVt_PVIO); | |
a5f75d66 | 5546 | GvMULTI_on(gv); |
79072805 | 5547 | if (!GvIO(gv)) |
a0d0e21e | 5548 | GvIOp(gv) = newIO(); |
3280af22 | 5549 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
5550 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
5551 | { | |
f54cb97a | 5552 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
5553 | fcntl(fd,F_SETFD,fd >= 3); |
5554 | } | |
79072805 | 5555 | #endif |
fd049845 | 5556 | /* Mark this internal pseudo-handle as clean */ |
5557 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
3280af22 | 5558 | if (PL_preprocess) |
50952442 | 5559 | IoTYPE(GvIOp(gv)) = IoTYPE_PIPE; |
3280af22 | 5560 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 5561 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 5562 | else |
50952442 | 5563 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
5564 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
5565 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 5566 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 5567 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
5568 | if (PL_bufend-PL_bufptr > 2 |
5569 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
5570 | { |
5571 | Off_t loc = 0; | |
50952442 | 5572 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
5573 | loc = PerlIO_tell(PL_rsfp); |
5574 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
5575 | } | |
2986a63f JH |
5576 | #ifdef NETWARE |
5577 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
5578 | #else | |
c39cd008 | 5579 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 5580 | #endif /* NETWARE */ |
1143fce0 JH |
5581 | #ifdef PERLIO_IS_STDIO /* really? */ |
5582 | # if defined(__BORLANDC__) | |
cb359b41 JH |
5583 | /* XXX see note in do_binmode() */ |
5584 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
5585 | # endif |
5586 | #endif | |
c39cd008 GS |
5587 | if (loc > 0) |
5588 | PerlIO_seek(PL_rsfp, loc, 0); | |
5589 | } | |
5590 | } | |
5591 | #endif | |
7948272d | 5592 | #ifdef PERLIO_LAYERS |
52d2e0f4 JH |
5593 | if (!IN_BYTES) { |
5594 | if (UTF) | |
5595 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
5596 | else if (PL_encoding) { | |
5597 | SV *name; | |
5598 | dSP; | |
5599 | ENTER; | |
5600 | SAVETMPS; | |
5601 | PUSHMARK(sp); | |
5602 | EXTEND(SP, 1); | |
5603 | XPUSHs(PL_encoding); | |
5604 | PUTBACK; | |
5605 | call_method("name", G_SCALAR); | |
5606 | SPAGAIN; | |
5607 | name = POPs; | |
5608 | PUTBACK; | |
bfed75c6 | 5609 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
52d2e0f4 | 5610 | Perl_form(aTHX_ ":encoding(%"SVf")", |
95b63a38 | 5611 | (void*)name)); |
52d2e0f4 JH |
5612 | FREETMPS; |
5613 | LEAVE; | |
5614 | } | |
5615 | } | |
7948272d | 5616 | #endif |
5db06880 NC |
5617 | #ifdef PERL_MAD |
5618 | if (PL_madskills) { | |
cd81e915 NC |
5619 | if (PL_realtokenstart >= 0) { |
5620 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; | |
5621 | if (!PL_endwhite) | |
6b29d1f5 | 5622 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
5623 | sv_catsv(PL_endwhite, PL_thiswhite); |
5624 | PL_thiswhite = 0; | |
5625 | sv_catpvn(PL_endwhite, tstart, PL_bufend - tstart); | |
5626 | PL_realtokenstart = -1; | |
5db06880 | 5627 | } |
cd81e915 NC |
5628 | while ((s = filter_gets(PL_endwhite, PL_rsfp, |
5629 | SvCUR(PL_endwhite))) != Nullch) ; | |
5db06880 NC |
5630 | } |
5631 | #endif | |
4608196e | 5632 | PL_rsfp = NULL; |
79072805 LW |
5633 | } |
5634 | goto fake_eof; | |
e929a76b | 5635 | } |
de3bb511 | 5636 | |
8990e307 | 5637 | case KEY_AUTOLOAD: |
ed6116ce | 5638 | case KEY_DESTROY: |
79072805 | 5639 | case KEY_BEGIN: |
7d30b5c4 | 5640 | case KEY_CHECK: |
7d07dbc2 | 5641 | case KEY_INIT: |
7d30b5c4 | 5642 | case KEY_END: |
3280af22 NIS |
5643 | if (PL_expect == XSTATE) { |
5644 | s = PL_bufptr; | |
93a17b20 | 5645 | goto really_sub; |
79072805 LW |
5646 | } |
5647 | goto just_a_word; | |
5648 | ||
a0d0e21e LW |
5649 | case KEY_CORE: |
5650 | if (*s == ':' && s[1] == ':') { | |
5651 | s += 2; | |
748a9306 | 5652 | d = s; |
3280af22 | 5653 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 5654 | if (!(tmp = keyword(PL_tokenbuf, len, 0))) |
6798c92b | 5655 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); |
a0d0e21e LW |
5656 | if (tmp < 0) |
5657 | tmp = -tmp; | |
850e8516 | 5658 | else if (tmp == KEY_require || tmp == KEY_do) |
a72a1c8b | 5659 | /* that's a way to remember we saw "CORE::" */ |
850e8516 | 5660 | orig_keyword = tmp; |
a0d0e21e LW |
5661 | goto reserved_word; |
5662 | } | |
5663 | goto just_a_word; | |
5664 | ||
463ee0b2 LW |
5665 | case KEY_abs: |
5666 | UNI(OP_ABS); | |
5667 | ||
79072805 LW |
5668 | case KEY_alarm: |
5669 | UNI(OP_ALARM); | |
5670 | ||
5671 | case KEY_accept: | |
a0d0e21e | 5672 | LOP(OP_ACCEPT,XTERM); |
79072805 | 5673 | |
463ee0b2 LW |
5674 | case KEY_and: |
5675 | OPERATOR(ANDOP); | |
5676 | ||
79072805 | 5677 | case KEY_atan2: |
a0d0e21e | 5678 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 5679 | |
79072805 | 5680 | case KEY_bind: |
a0d0e21e | 5681 | LOP(OP_BIND,XTERM); |
79072805 LW |
5682 | |
5683 | case KEY_binmode: | |
1c1fc3ea | 5684 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
5685 | |
5686 | case KEY_bless: | |
a0d0e21e | 5687 | LOP(OP_BLESS,XTERM); |
79072805 | 5688 | |
0d863452 RH |
5689 | case KEY_break: |
5690 | FUN0(OP_BREAK); | |
5691 | ||
79072805 LW |
5692 | case KEY_chop: |
5693 | UNI(OP_CHOP); | |
5694 | ||
5695 | case KEY_continue: | |
0d863452 RH |
5696 | /* When 'use switch' is in effect, continue has a dual |
5697 | life as a control operator. */ | |
5698 | { | |
ef89dcc3 | 5699 | if (!FEATURE_IS_ENABLED("switch")) |
0d863452 RH |
5700 | PREBLOCK(CONTINUE); |
5701 | else { | |
5702 | /* We have to disambiguate the two senses of | |
5703 | "continue". If the next token is a '{' then | |
5704 | treat it as the start of a continue block; | |
5705 | otherwise treat it as a control operator. | |
5706 | */ | |
5707 | s = skipspace(s); | |
5708 | if (*s == '{') | |
79072805 | 5709 | PREBLOCK(CONTINUE); |
0d863452 RH |
5710 | else |
5711 | FUN0(OP_CONTINUE); | |
5712 | } | |
5713 | } | |
79072805 LW |
5714 | |
5715 | case KEY_chdir: | |
fafc274c NC |
5716 | /* may use HOME */ |
5717 | (void)gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV); | |
79072805 LW |
5718 | UNI(OP_CHDIR); |
5719 | ||
5720 | case KEY_close: | |
5721 | UNI(OP_CLOSE); | |
5722 | ||
5723 | case KEY_closedir: | |
5724 | UNI(OP_CLOSEDIR); | |
5725 | ||
5726 | case KEY_cmp: | |
5727 | Eop(OP_SCMP); | |
5728 | ||
5729 | case KEY_caller: | |
5730 | UNI(OP_CALLER); | |
5731 | ||
5732 | case KEY_crypt: | |
5733 | #ifdef FCRYPT | |
f4c556ac GS |
5734 | if (!PL_cryptseen) { |
5735 | PL_cryptseen = TRUE; | |
de3bb511 | 5736 | init_des(); |
f4c556ac | 5737 | } |
a687059c | 5738 | #endif |
a0d0e21e | 5739 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
5740 | |
5741 | case KEY_chmod: | |
a0d0e21e | 5742 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
5743 | |
5744 | case KEY_chown: | |
a0d0e21e | 5745 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
5746 | |
5747 | case KEY_connect: | |
a0d0e21e | 5748 | LOP(OP_CONNECT,XTERM); |
79072805 | 5749 | |
463ee0b2 LW |
5750 | case KEY_chr: |
5751 | UNI(OP_CHR); | |
5752 | ||
79072805 LW |
5753 | case KEY_cos: |
5754 | UNI(OP_COS); | |
5755 | ||
5756 | case KEY_chroot: | |
5757 | UNI(OP_CHROOT); | |
5758 | ||
0d863452 RH |
5759 | case KEY_default: |
5760 | PREBLOCK(DEFAULT); | |
5761 | ||
79072805 | 5762 | case KEY_do: |
29595ff2 | 5763 | s = SKIPSPACE1(s); |
79072805 | 5764 | if (*s == '{') |
a0d0e21e | 5765 | PRETERMBLOCK(DO); |
79072805 | 5766 | if (*s != '\'') |
89c5585f | 5767 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
850e8516 RGS |
5768 | if (orig_keyword == KEY_do) { |
5769 | orig_keyword = 0; | |
5770 | yylval.ival = 1; | |
5771 | } | |
5772 | else | |
5773 | yylval.ival = 0; | |
378cc40b | 5774 | OPERATOR(DO); |
79072805 LW |
5775 | |
5776 | case KEY_die: | |
3280af22 | 5777 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 5778 | LOP(OP_DIE,XTERM); |
79072805 LW |
5779 | |
5780 | case KEY_defined: | |
5781 | UNI(OP_DEFINED); | |
5782 | ||
5783 | case KEY_delete: | |
a0d0e21e | 5784 | UNI(OP_DELETE); |
79072805 LW |
5785 | |
5786 | case KEY_dbmopen: | |
5c1737d1 | 5787 | gv_fetchpvs("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
a0d0e21e | 5788 | LOP(OP_DBMOPEN,XTERM); |
79072805 LW |
5789 | |
5790 | case KEY_dbmclose: | |
5791 | UNI(OP_DBMCLOSE); | |
5792 | ||
5793 | case KEY_dump: | |
a0d0e21e | 5794 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5795 | LOOPX(OP_DUMP); |
5796 | ||
5797 | case KEY_else: | |
5798 | PREBLOCK(ELSE); | |
5799 | ||
5800 | case KEY_elsif: | |
57843af0 | 5801 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5802 | OPERATOR(ELSIF); |
5803 | ||
5804 | case KEY_eq: | |
5805 | Eop(OP_SEQ); | |
5806 | ||
a0d0e21e LW |
5807 | case KEY_exists: |
5808 | UNI(OP_EXISTS); | |
4e553d73 | 5809 | |
79072805 | 5810 | case KEY_exit: |
5db06880 NC |
5811 | if (PL_madskills) |
5812 | UNI(OP_INT); | |
79072805 LW |
5813 | UNI(OP_EXIT); |
5814 | ||
5815 | case KEY_eval: | |
29595ff2 | 5816 | s = SKIPSPACE1(s); |
3280af22 | 5817 | PL_expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 5818 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
5819 | |
5820 | case KEY_eof: | |
5821 | UNI(OP_EOF); | |
5822 | ||
c963b151 BD |
5823 | case KEY_err: |
5824 | OPERATOR(DOROP); | |
5825 | ||
79072805 LW |
5826 | case KEY_exp: |
5827 | UNI(OP_EXP); | |
5828 | ||
5829 | case KEY_each: | |
5830 | UNI(OP_EACH); | |
5831 | ||
5832 | case KEY_exec: | |
5833 | set_csh(); | |
a0d0e21e | 5834 | LOP(OP_EXEC,XREF); |
79072805 LW |
5835 | |
5836 | case KEY_endhostent: | |
5837 | FUN0(OP_EHOSTENT); | |
5838 | ||
5839 | case KEY_endnetent: | |
5840 | FUN0(OP_ENETENT); | |
5841 | ||
5842 | case KEY_endservent: | |
5843 | FUN0(OP_ESERVENT); | |
5844 | ||
5845 | case KEY_endprotoent: | |
5846 | FUN0(OP_EPROTOENT); | |
5847 | ||
5848 | case KEY_endpwent: | |
5849 | FUN0(OP_EPWENT); | |
5850 | ||
5851 | case KEY_endgrent: | |
5852 | FUN0(OP_EGRENT); | |
5853 | ||
5854 | case KEY_for: | |
5855 | case KEY_foreach: | |
57843af0 | 5856 | yylval.ival = CopLINE(PL_curcop); |
29595ff2 | 5857 | s = SKIPSPACE1(s); |
7e2040f0 | 5858 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 5859 | char *p = s; |
5db06880 NC |
5860 | #ifdef PERL_MAD |
5861 | int soff = s - SvPVX(PL_linestr); /* for skipspace realloc */ | |
5862 | #endif | |
5863 | ||
3280af22 | 5864 | if ((PL_bufend - p) >= 3 && |
55497cff | 5865 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
5866 | p += 2; | |
77ca0c92 LW |
5867 | else if ((PL_bufend - p) >= 4 && |
5868 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
5869 | p += 3; | |
29595ff2 | 5870 | p = PEEKSPACE(p); |
7e2040f0 | 5871 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
5872 | p = scan_ident(p, PL_bufend, |
5873 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
29595ff2 | 5874 | p = PEEKSPACE(p); |
77ca0c92 LW |
5875 | } |
5876 | if (*p != '$') | |
cea2e8a9 | 5877 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
5db06880 NC |
5878 | #ifdef PERL_MAD |
5879 | s = SvPVX(PL_linestr) + soff; | |
5880 | #endif | |
55497cff | 5881 | } |
79072805 LW |
5882 | OPERATOR(FOR); |
5883 | ||
5884 | case KEY_formline: | |
a0d0e21e | 5885 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
5886 | |
5887 | case KEY_fork: | |
5888 | FUN0(OP_FORK); | |
5889 | ||
5890 | case KEY_fcntl: | |
a0d0e21e | 5891 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
5892 | |
5893 | case KEY_fileno: | |
5894 | UNI(OP_FILENO); | |
5895 | ||
5896 | case KEY_flock: | |
a0d0e21e | 5897 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
5898 | |
5899 | case KEY_gt: | |
5900 | Rop(OP_SGT); | |
5901 | ||
5902 | case KEY_ge: | |
5903 | Rop(OP_SGE); | |
5904 | ||
5905 | case KEY_grep: | |
2c38e13d | 5906 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
5907 | |
5908 | case KEY_goto: | |
a0d0e21e | 5909 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5910 | LOOPX(OP_GOTO); |
5911 | ||
5912 | case KEY_gmtime: | |
5913 | UNI(OP_GMTIME); | |
5914 | ||
5915 | case KEY_getc: | |
6f33ba73 | 5916 | UNIDOR(OP_GETC); |
79072805 LW |
5917 | |
5918 | case KEY_getppid: | |
5919 | FUN0(OP_GETPPID); | |
5920 | ||
5921 | case KEY_getpgrp: | |
5922 | UNI(OP_GETPGRP); | |
5923 | ||
5924 | case KEY_getpriority: | |
a0d0e21e | 5925 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
5926 | |
5927 | case KEY_getprotobyname: | |
5928 | UNI(OP_GPBYNAME); | |
5929 | ||
5930 | case KEY_getprotobynumber: | |
a0d0e21e | 5931 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
5932 | |
5933 | case KEY_getprotoent: | |
5934 | FUN0(OP_GPROTOENT); | |
5935 | ||
5936 | case KEY_getpwent: | |
5937 | FUN0(OP_GPWENT); | |
5938 | ||
5939 | case KEY_getpwnam: | |
ff68c719 | 5940 | UNI(OP_GPWNAM); |
79072805 LW |
5941 | |
5942 | case KEY_getpwuid: | |
ff68c719 | 5943 | UNI(OP_GPWUID); |
79072805 LW |
5944 | |
5945 | case KEY_getpeername: | |
5946 | UNI(OP_GETPEERNAME); | |
5947 | ||
5948 | case KEY_gethostbyname: | |
5949 | UNI(OP_GHBYNAME); | |
5950 | ||
5951 | case KEY_gethostbyaddr: | |
a0d0e21e | 5952 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
5953 | |
5954 | case KEY_gethostent: | |
5955 | FUN0(OP_GHOSTENT); | |
5956 | ||
5957 | case KEY_getnetbyname: | |
5958 | UNI(OP_GNBYNAME); | |
5959 | ||
5960 | case KEY_getnetbyaddr: | |
a0d0e21e | 5961 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
5962 | |
5963 | case KEY_getnetent: | |
5964 | FUN0(OP_GNETENT); | |
5965 | ||
5966 | case KEY_getservbyname: | |
a0d0e21e | 5967 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
5968 | |
5969 | case KEY_getservbyport: | |
a0d0e21e | 5970 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
5971 | |
5972 | case KEY_getservent: | |
5973 | FUN0(OP_GSERVENT); | |
5974 | ||
5975 | case KEY_getsockname: | |
5976 | UNI(OP_GETSOCKNAME); | |
5977 | ||
5978 | case KEY_getsockopt: | |
a0d0e21e | 5979 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
5980 | |
5981 | case KEY_getgrent: | |
5982 | FUN0(OP_GGRENT); | |
5983 | ||
5984 | case KEY_getgrnam: | |
ff68c719 | 5985 | UNI(OP_GGRNAM); |
79072805 LW |
5986 | |
5987 | case KEY_getgrgid: | |
ff68c719 | 5988 | UNI(OP_GGRGID); |
79072805 LW |
5989 | |
5990 | case KEY_getlogin: | |
5991 | FUN0(OP_GETLOGIN); | |
5992 | ||
0d863452 RH |
5993 | case KEY_given: |
5994 | yylval.ival = CopLINE(PL_curcop); | |
5995 | OPERATOR(GIVEN); | |
5996 | ||
93a17b20 | 5997 | case KEY_glob: |
a0d0e21e LW |
5998 | set_csh(); |
5999 | LOP(OP_GLOB,XTERM); | |
93a17b20 | 6000 | |
79072805 LW |
6001 | case KEY_hex: |
6002 | UNI(OP_HEX); | |
6003 | ||
6004 | case KEY_if: | |
57843af0 | 6005 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6006 | OPERATOR(IF); |
6007 | ||
6008 | case KEY_index: | |
a0d0e21e | 6009 | LOP(OP_INDEX,XTERM); |
79072805 LW |
6010 | |
6011 | case KEY_int: | |
6012 | UNI(OP_INT); | |
6013 | ||
6014 | case KEY_ioctl: | |
a0d0e21e | 6015 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
6016 | |
6017 | case KEY_join: | |
a0d0e21e | 6018 | LOP(OP_JOIN,XTERM); |
79072805 LW |
6019 | |
6020 | case KEY_keys: | |
6021 | UNI(OP_KEYS); | |
6022 | ||
6023 | case KEY_kill: | |
a0d0e21e | 6024 | LOP(OP_KILL,XTERM); |
79072805 LW |
6025 | |
6026 | case KEY_last: | |
a0d0e21e | 6027 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 6028 | LOOPX(OP_LAST); |
4e553d73 | 6029 | |
79072805 LW |
6030 | case KEY_lc: |
6031 | UNI(OP_LC); | |
6032 | ||
6033 | case KEY_lcfirst: | |
6034 | UNI(OP_LCFIRST); | |
6035 | ||
6036 | case KEY_local: | |
09bef843 | 6037 | yylval.ival = 0; |
79072805 LW |
6038 | OPERATOR(LOCAL); |
6039 | ||
6040 | case KEY_length: | |
6041 | UNI(OP_LENGTH); | |
6042 | ||
6043 | case KEY_lt: | |
6044 | Rop(OP_SLT); | |
6045 | ||
6046 | case KEY_le: | |
6047 | Rop(OP_SLE); | |
6048 | ||
6049 | case KEY_localtime: | |
6050 | UNI(OP_LOCALTIME); | |
6051 | ||
6052 | case KEY_log: | |
6053 | UNI(OP_LOG); | |
6054 | ||
6055 | case KEY_link: | |
a0d0e21e | 6056 | LOP(OP_LINK,XTERM); |
79072805 LW |
6057 | |
6058 | case KEY_listen: | |
a0d0e21e | 6059 | LOP(OP_LISTEN,XTERM); |
79072805 | 6060 | |
c0329465 MB |
6061 | case KEY_lock: |
6062 | UNI(OP_LOCK); | |
6063 | ||
79072805 LW |
6064 | case KEY_lstat: |
6065 | UNI(OP_LSTAT); | |
6066 | ||
6067 | case KEY_m: | |
8782bef2 | 6068 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
6069 | TERM(sublex_start()); |
6070 | ||
a0d0e21e | 6071 | case KEY_map: |
2c38e13d | 6072 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 6073 | |
79072805 | 6074 | case KEY_mkdir: |
a0d0e21e | 6075 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
6076 | |
6077 | case KEY_msgctl: | |
a0d0e21e | 6078 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
6079 | |
6080 | case KEY_msgget: | |
a0d0e21e | 6081 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
6082 | |
6083 | case KEY_msgrcv: | |
a0d0e21e | 6084 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
6085 | |
6086 | case KEY_msgsnd: | |
a0d0e21e | 6087 | LOP(OP_MSGSND,XTERM); |
79072805 | 6088 | |
77ca0c92 | 6089 | case KEY_our: |
93a17b20 | 6090 | case KEY_my: |
952306ac | 6091 | case KEY_state: |
77ca0c92 | 6092 | PL_in_my = tmp; |
29595ff2 | 6093 | s = SKIPSPACE1(s); |
7e2040f0 | 6094 | if (isIDFIRST_lazy_if(s,UTF)) { |
5db06880 NC |
6095 | #ifdef PERL_MAD |
6096 | char* start = s; | |
6097 | #endif | |
3280af22 | 6098 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
6099 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
6100 | goto really_sub; | |
def3634b | 6101 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 6102 | if (!PL_in_my_stash) { |
c750a3ec | 6103 | char tmpbuf[1024]; |
3280af22 | 6104 | PL_bufptr = s; |
d9fad198 | 6105 | my_snprintf(tmpbuf, sizeof(tmpbuf), "No such class %.1000s", PL_tokenbuf); |
c750a3ec MB |
6106 | yyerror(tmpbuf); |
6107 | } | |
5db06880 NC |
6108 | #ifdef PERL_MAD |
6109 | if (PL_madskills) { /* just add type to declarator token */ | |
cd81e915 NC |
6110 | sv_catsv(PL_thistoken, PL_nextwhite); |
6111 | PL_nextwhite = 0; | |
6112 | sv_catpvn(PL_thistoken, start, s - start); | |
5db06880 NC |
6113 | } |
6114 | #endif | |
c750a3ec | 6115 | } |
09bef843 | 6116 | yylval.ival = 1; |
55497cff | 6117 | OPERATOR(MY); |
93a17b20 | 6118 | |
79072805 | 6119 | case KEY_next: |
a0d0e21e | 6120 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6121 | LOOPX(OP_NEXT); |
6122 | ||
6123 | case KEY_ne: | |
6124 | Eop(OP_SNE); | |
6125 | ||
a0d0e21e | 6126 | case KEY_no: |
468aa647 | 6127 | s = tokenize_use(0, s); |
a0d0e21e LW |
6128 | OPERATOR(USE); |
6129 | ||
6130 | case KEY_not: | |
29595ff2 | 6131 | if (*s == '(' || (s = SKIPSPACE1(s), *s == '(')) |
2d2e263d LW |
6132 | FUN1(OP_NOT); |
6133 | else | |
6134 | OPERATOR(NOTOP); | |
a0d0e21e | 6135 | |
79072805 | 6136 | case KEY_open: |
29595ff2 | 6137 | s = SKIPSPACE1(s); |
7e2040f0 | 6138 | if (isIDFIRST_lazy_if(s,UTF)) { |
f54cb97a | 6139 | const char *t; |
c35e046a AL |
6140 | for (d = s; isALNUM_lazy_if(d,UTF);) |
6141 | d++; | |
6142 | for (t=d; isSPACE(*t);) | |
6143 | t++; | |
e2ab214b | 6144 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) |
66fbe8fb HS |
6145 | /* [perl #16184] */ |
6146 | && !(t[0] == '=' && t[1] == '>') | |
6147 | ) { | |
5f66b61c | 6148 | int parms_len = (int)(d-s); |
9014280d | 6149 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 6150 | "Precedence problem: open %.*s should be open(%.*s)", |
5f66b61c | 6151 | parms_len, s, parms_len, s); |
66fbe8fb | 6152 | } |
93a17b20 | 6153 | } |
a0d0e21e | 6154 | LOP(OP_OPEN,XTERM); |
79072805 | 6155 | |
463ee0b2 | 6156 | case KEY_or: |
a0d0e21e | 6157 | yylval.ival = OP_OR; |
463ee0b2 LW |
6158 | OPERATOR(OROP); |
6159 | ||
79072805 LW |
6160 | case KEY_ord: |
6161 | UNI(OP_ORD); | |
6162 | ||
6163 | case KEY_oct: | |
6164 | UNI(OP_OCT); | |
6165 | ||
6166 | case KEY_opendir: | |
a0d0e21e | 6167 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
6168 | |
6169 | case KEY_print: | |
3280af22 | 6170 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6171 | LOP(OP_PRINT,XREF); |
79072805 LW |
6172 | |
6173 | case KEY_printf: | |
3280af22 | 6174 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6175 | LOP(OP_PRTF,XREF); |
79072805 | 6176 | |
c07a80fd | 6177 | case KEY_prototype: |
6178 | UNI(OP_PROTOTYPE); | |
6179 | ||
79072805 | 6180 | case KEY_push: |
a0d0e21e | 6181 | LOP(OP_PUSH,XTERM); |
79072805 LW |
6182 | |
6183 | case KEY_pop: | |
6f33ba73 | 6184 | UNIDOR(OP_POP); |
79072805 | 6185 | |
a0d0e21e | 6186 | case KEY_pos: |
6f33ba73 | 6187 | UNIDOR(OP_POS); |
4e553d73 | 6188 | |
79072805 | 6189 | case KEY_pack: |
a0d0e21e | 6190 | LOP(OP_PACK,XTERM); |
79072805 LW |
6191 | |
6192 | case KEY_package: | |
a0d0e21e | 6193 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
6194 | OPERATOR(PACKAGE); |
6195 | ||
6196 | case KEY_pipe: | |
a0d0e21e | 6197 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
6198 | |
6199 | case KEY_q: | |
5db06880 | 6200 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6201 | if (!s) |
d4c19fe8 | 6202 | missingterm(NULL); |
79072805 LW |
6203 | yylval.ival = OP_CONST; |
6204 | TERM(sublex_start()); | |
6205 | ||
a0d0e21e LW |
6206 | case KEY_quotemeta: |
6207 | UNI(OP_QUOTEMETA); | |
6208 | ||
8990e307 | 6209 | case KEY_qw: |
5db06880 | 6210 | s = scan_str(s,!!PL_madskills,FALSE); |
8990e307 | 6211 | if (!s) |
d4c19fe8 | 6212 | missingterm(NULL); |
3480a8d2 | 6213 | PL_expect = XOPERATOR; |
8127e0e3 GS |
6214 | force_next(')'); |
6215 | if (SvCUR(PL_lex_stuff)) { | |
5f66b61c | 6216 | OP *words = NULL; |
8127e0e3 | 6217 | int warned = 0; |
3280af22 | 6218 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 6219 | while (len) { |
d4c19fe8 AL |
6220 | for (; isSPACE(*d) && len; --len, ++d) |
6221 | /**/; | |
8127e0e3 | 6222 | if (len) { |
d4c19fe8 | 6223 | SV *sv; |
f54cb97a | 6224 | const char *b = d; |
e476b1b5 | 6225 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
6226 | for (; !isSPACE(*d) && len; --len, ++d) { |
6227 | if (*d == ',') { | |
9014280d | 6228 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6229 | "Possible attempt to separate words with commas"); |
6230 | ++warned; | |
6231 | } | |
6232 | else if (*d == '#') { | |
9014280d | 6233 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6234 | "Possible attempt to put comments in qw() list"); |
6235 | ++warned; | |
6236 | } | |
6237 | } | |
6238 | } | |
6239 | else { | |
d4c19fe8 AL |
6240 | for (; !isSPACE(*d) && len; --len, ++d) |
6241 | /**/; | |
8127e0e3 | 6242 | } |
7948272d NIS |
6243 | sv = newSVpvn(b, d-b); |
6244 | if (DO_UTF8(PL_lex_stuff)) | |
6245 | SvUTF8_on(sv); | |
8127e0e3 | 6246 | words = append_elem(OP_LIST, words, |
7948272d | 6247 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 6248 | } |
6249 | } | |
8127e0e3 | 6250 | if (words) { |
cd81e915 | 6251 | start_force(PL_curforce); |
9ded7720 | 6252 | NEXTVAL_NEXTTOKE.opval = words; |
8127e0e3 GS |
6253 | force_next(THING); |
6254 | } | |
55497cff | 6255 | } |
37fd879b | 6256 | if (PL_lex_stuff) { |
8127e0e3 | 6257 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 6258 | PL_lex_stuff = NULL; |
37fd879b | 6259 | } |
3280af22 | 6260 | PL_expect = XTERM; |
8127e0e3 | 6261 | TOKEN('('); |
8990e307 | 6262 | |
79072805 | 6263 | case KEY_qq: |
5db06880 | 6264 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6265 | if (!s) |
d4c19fe8 | 6266 | missingterm(NULL); |
a0d0e21e | 6267 | yylval.ival = OP_STRINGIFY; |
3280af22 | 6268 | if (SvIVX(PL_lex_stuff) == '\'') |
45977657 | 6269 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
6270 | TERM(sublex_start()); |
6271 | ||
8782bef2 GB |
6272 | case KEY_qr: |
6273 | s = scan_pat(s,OP_QR); | |
6274 | TERM(sublex_start()); | |
6275 | ||
79072805 | 6276 | case KEY_qx: |
5db06880 | 6277 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6278 | if (!s) |
d4c19fe8 | 6279 | missingterm(NULL); |
79072805 LW |
6280 | yylval.ival = OP_BACKTICK; |
6281 | set_csh(); | |
6282 | TERM(sublex_start()); | |
6283 | ||
6284 | case KEY_return: | |
6285 | OLDLOP(OP_RETURN); | |
6286 | ||
6287 | case KEY_require: | |
29595ff2 | 6288 | s = SKIPSPACE1(s); |
e759cc13 RGS |
6289 | if (isDIGIT(*s)) { |
6290 | s = force_version(s, FALSE); | |
a7cb1f99 | 6291 | } |
e759cc13 RGS |
6292 | else if (*s != 'v' || !isDIGIT(s[1]) |
6293 | || (s = force_version(s, TRUE), *s == 'v')) | |
6294 | { | |
a7cb1f99 GS |
6295 | *PL_tokenbuf = '\0'; |
6296 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 6297 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
a7cb1f99 GS |
6298 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), TRUE); |
6299 | else if (*s == '<') | |
6300 | yyerror("<> should be quotes"); | |
6301 | } | |
a72a1c8b RGS |
6302 | if (orig_keyword == KEY_require) { |
6303 | orig_keyword = 0; | |
6304 | yylval.ival = 1; | |
6305 | } | |
6306 | else | |
6307 | yylval.ival = 0; | |
6308 | PL_expect = XTERM; | |
6309 | PL_bufptr = s; | |
6310 | PL_last_uni = PL_oldbufptr; | |
6311 | PL_last_lop_op = OP_REQUIRE; | |
6312 | s = skipspace(s); | |
6313 | return REPORT( (int)REQUIRE ); | |
79072805 LW |
6314 | |
6315 | case KEY_reset: | |
6316 | UNI(OP_RESET); | |
6317 | ||
6318 | case KEY_redo: | |
a0d0e21e | 6319 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6320 | LOOPX(OP_REDO); |
6321 | ||
6322 | case KEY_rename: | |
a0d0e21e | 6323 | LOP(OP_RENAME,XTERM); |
79072805 LW |
6324 | |
6325 | case KEY_rand: | |
6326 | UNI(OP_RAND); | |
6327 | ||
6328 | case KEY_rmdir: | |
6329 | UNI(OP_RMDIR); | |
6330 | ||
6331 | case KEY_rindex: | |
a0d0e21e | 6332 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
6333 | |
6334 | case KEY_read: | |
a0d0e21e | 6335 | LOP(OP_READ,XTERM); |
79072805 LW |
6336 | |
6337 | case KEY_readdir: | |
6338 | UNI(OP_READDIR); | |
6339 | ||
93a17b20 LW |
6340 | case KEY_readline: |
6341 | set_csh(); | |
6f33ba73 | 6342 | UNIDOR(OP_READLINE); |
93a17b20 LW |
6343 | |
6344 | case KEY_readpipe: | |
6345 | set_csh(); | |
6346 | UNI(OP_BACKTICK); | |
6347 | ||
79072805 LW |
6348 | case KEY_rewinddir: |
6349 | UNI(OP_REWINDDIR); | |
6350 | ||
6351 | case KEY_recv: | |
a0d0e21e | 6352 | LOP(OP_RECV,XTERM); |
79072805 LW |
6353 | |
6354 | case KEY_reverse: | |
a0d0e21e | 6355 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
6356 | |
6357 | case KEY_readlink: | |
6f33ba73 | 6358 | UNIDOR(OP_READLINK); |
79072805 LW |
6359 | |
6360 | case KEY_ref: | |
6361 | UNI(OP_REF); | |
6362 | ||
6363 | case KEY_s: | |
6364 | s = scan_subst(s); | |
6365 | if (yylval.opval) | |
6366 | TERM(sublex_start()); | |
6367 | else | |
6368 | TOKEN(1); /* force error */ | |
6369 | ||
0d863452 RH |
6370 | case KEY_say: |
6371 | checkcomma(s,PL_tokenbuf,"filehandle"); | |
6372 | LOP(OP_SAY,XREF); | |
6373 | ||
a0d0e21e LW |
6374 | case KEY_chomp: |
6375 | UNI(OP_CHOMP); | |
4e553d73 | 6376 | |
79072805 LW |
6377 | case KEY_scalar: |
6378 | UNI(OP_SCALAR); | |
6379 | ||
6380 | case KEY_select: | |
a0d0e21e | 6381 | LOP(OP_SELECT,XTERM); |
79072805 LW |
6382 | |
6383 | case KEY_seek: | |
a0d0e21e | 6384 | LOP(OP_SEEK,XTERM); |
79072805 LW |
6385 | |
6386 | case KEY_semctl: | |
a0d0e21e | 6387 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
6388 | |
6389 | case KEY_semget: | |
a0d0e21e | 6390 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
6391 | |
6392 | case KEY_semop: | |
a0d0e21e | 6393 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
6394 | |
6395 | case KEY_send: | |
a0d0e21e | 6396 | LOP(OP_SEND,XTERM); |
79072805 LW |
6397 | |
6398 | case KEY_setpgrp: | |
a0d0e21e | 6399 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
6400 | |
6401 | case KEY_setpriority: | |
a0d0e21e | 6402 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
6403 | |
6404 | case KEY_sethostent: | |
ff68c719 | 6405 | UNI(OP_SHOSTENT); |
79072805 LW |
6406 | |
6407 | case KEY_setnetent: | |
ff68c719 | 6408 | UNI(OP_SNETENT); |
79072805 LW |
6409 | |
6410 | case KEY_setservent: | |
ff68c719 | 6411 | UNI(OP_SSERVENT); |
79072805 LW |
6412 | |
6413 | case KEY_setprotoent: | |
ff68c719 | 6414 | UNI(OP_SPROTOENT); |
79072805 LW |
6415 | |
6416 | case KEY_setpwent: | |
6417 | FUN0(OP_SPWENT); | |
6418 | ||
6419 | case KEY_setgrent: | |
6420 | FUN0(OP_SGRENT); | |
6421 | ||
6422 | case KEY_seekdir: | |
a0d0e21e | 6423 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
6424 | |
6425 | case KEY_setsockopt: | |
a0d0e21e | 6426 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
6427 | |
6428 | case KEY_shift: | |
6f33ba73 | 6429 | UNIDOR(OP_SHIFT); |
79072805 LW |
6430 | |
6431 | case KEY_shmctl: | |
a0d0e21e | 6432 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
6433 | |
6434 | case KEY_shmget: | |
a0d0e21e | 6435 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
6436 | |
6437 | case KEY_shmread: | |
a0d0e21e | 6438 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
6439 | |
6440 | case KEY_shmwrite: | |
a0d0e21e | 6441 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
6442 | |
6443 | case KEY_shutdown: | |
a0d0e21e | 6444 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
6445 | |
6446 | case KEY_sin: | |
6447 | UNI(OP_SIN); | |
6448 | ||
6449 | case KEY_sleep: | |
6450 | UNI(OP_SLEEP); | |
6451 | ||
6452 | case KEY_socket: | |
a0d0e21e | 6453 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
6454 | |
6455 | case KEY_socketpair: | |
a0d0e21e | 6456 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
6457 | |
6458 | case KEY_sort: | |
3280af22 | 6459 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
29595ff2 | 6460 | s = SKIPSPACE1(s); |
79072805 | 6461 | if (*s == ';' || *s == ')') /* probably a close */ |
cea2e8a9 | 6462 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 6463 | PL_expect = XTERM; |
15f0808c | 6464 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 6465 | LOP(OP_SORT,XREF); |
79072805 LW |
6466 | |
6467 | case KEY_split: | |
a0d0e21e | 6468 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
6469 | |
6470 | case KEY_sprintf: | |
a0d0e21e | 6471 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
6472 | |
6473 | case KEY_splice: | |
a0d0e21e | 6474 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
6475 | |
6476 | case KEY_sqrt: | |
6477 | UNI(OP_SQRT); | |
6478 | ||
6479 | case KEY_srand: | |
6480 | UNI(OP_SRAND); | |
6481 | ||
6482 | case KEY_stat: | |
6483 | UNI(OP_STAT); | |
6484 | ||
6485 | case KEY_study: | |
79072805 LW |
6486 | UNI(OP_STUDY); |
6487 | ||
6488 | case KEY_substr: | |
a0d0e21e | 6489 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
6490 | |
6491 | case KEY_format: | |
6492 | case KEY_sub: | |
93a17b20 | 6493 | really_sub: |
09bef843 | 6494 | { |
3280af22 | 6495 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 6496 | SSize_t tboffset = 0; |
09bef843 | 6497 | expectation attrful; |
28cc6278 | 6498 | bool have_name, have_proto; |
f54cb97a | 6499 | const int key = tmp; |
09bef843 | 6500 | |
5db06880 NC |
6501 | #ifdef PERL_MAD |
6502 | SV *tmpwhite = 0; | |
6503 | ||
cd81e915 | 6504 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
5db06880 | 6505 | SV *subtoken = newSVpvn(tstart, s - tstart); |
cd81e915 | 6506 | PL_thistoken = 0; |
5db06880 NC |
6507 | |
6508 | d = s; | |
6509 | s = SKIPSPACE2(s,tmpwhite); | |
6510 | #else | |
09bef843 | 6511 | s = skipspace(s); |
5db06880 | 6512 | #endif |
09bef843 | 6513 | |
7e2040f0 | 6514 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
6515 | (*s == ':' && s[1] == ':')) |
6516 | { | |
5db06880 NC |
6517 | #ifdef PERL_MAD |
6518 | SV *nametoke; | |
6519 | #endif | |
6520 | ||
09bef843 SB |
6521 | PL_expect = XBLOCK; |
6522 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
6523 | /* remember buffer pos'n for later force_word */ |
6524 | tboffset = s - PL_oldbufptr; | |
09bef843 | 6525 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5db06880 NC |
6526 | #ifdef PERL_MAD |
6527 | if (PL_madskills) | |
6528 | nametoke = newSVpvn(s, d - s); | |
6529 | #endif | |
09bef843 SB |
6530 | if (strchr(tmpbuf, ':')) |
6531 | sv_setpv(PL_subname, tmpbuf); | |
6532 | else { | |
6533 | sv_setsv(PL_subname,PL_curstname); | |
396482e1 | 6534 | sv_catpvs(PL_subname,"::"); |
09bef843 SB |
6535 | sv_catpvn(PL_subname,tmpbuf,len); |
6536 | } | |
09bef843 | 6537 | have_name = TRUE; |
5db06880 NC |
6538 | |
6539 | #ifdef PERL_MAD | |
6540 | ||
6541 | start_force(0); | |
6542 | CURMAD('X', nametoke); | |
6543 | CURMAD('_', tmpwhite); | |
6544 | (void) force_word(PL_oldbufptr + tboffset, WORD, | |
6545 | FALSE, TRUE, TRUE); | |
6546 | ||
6547 | s = SKIPSPACE2(d,tmpwhite); | |
6548 | #else | |
6549 | s = skipspace(d); | |
6550 | #endif | |
09bef843 | 6551 | } |
463ee0b2 | 6552 | else { |
09bef843 SB |
6553 | if (key == KEY_my) |
6554 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
6555 | PL_expect = XTERMBLOCK; | |
6556 | attrful = XATTRTERM; | |
c69006e4 | 6557 | sv_setpvn(PL_subname,"?",1); |
09bef843 | 6558 | have_name = FALSE; |
463ee0b2 | 6559 | } |
4633a7c4 | 6560 | |
09bef843 SB |
6561 | if (key == KEY_format) { |
6562 | if (*s == '=') | |
6563 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5db06880 | 6564 | #ifdef PERL_MAD |
cd81e915 | 6565 | PL_thistoken = subtoken; |
5db06880 NC |
6566 | s = d; |
6567 | #else | |
09bef843 | 6568 | if (have_name) |
b1b65b59 JH |
6569 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6570 | FALSE, TRUE, TRUE); | |
5db06880 | 6571 | #endif |
09bef843 SB |
6572 | OPERATOR(FORMAT); |
6573 | } | |
79072805 | 6574 | |
09bef843 SB |
6575 | /* Look for a prototype */ |
6576 | if (*s == '(') { | |
09bef843 | 6577 | |
5db06880 | 6578 | s = scan_str(s,!!PL_madskills,FALSE); |
37fd879b | 6579 | if (!s) |
09bef843 | 6580 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 6581 | /* strip spaces and check for bad characters */ |
09bef843 SB |
6582 | d = SvPVX(PL_lex_stuff); |
6583 | tmp = 0; | |
28cc6278 RGS |
6584 | { |
6585 | char *p; | |
6586 | bool bad_proto = FALSE; | |
6587 | const bool warnsyntax = ckWARN(WARN_SYNTAX); | |
6588 | for (p = d; *p; ++p) { | |
6589 | if (!isSPACE(*p)) { | |
6590 | d[tmp++] = *p; | |
6591 | if (warnsyntax && !strchr("$@%*;[]&\\", *p)) | |
6592 | bad_proto = TRUE; | |
6593 | } | |
d37a9538 | 6594 | } |
28cc6278 RGS |
6595 | d[tmp] = '\0'; |
6596 | if (bad_proto) | |
6597 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
6598 | "Illegal character in prototype for %"SVf" : %s", | |
6599 | (void*)PL_subname, d); | |
09bef843 | 6600 | } |
b162af07 | 6601 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 6602 | have_proto = TRUE; |
68dc0745 | 6603 | |
5db06880 NC |
6604 | #ifdef PERL_MAD |
6605 | start_force(0); | |
cd81e915 | 6606 | CURMAD('q', PL_thisopen); |
5db06880 | 6607 | CURMAD('_', tmpwhite); |
cd81e915 NC |
6608 | CURMAD('=', PL_thisstuff); |
6609 | CURMAD('Q', PL_thisclose); | |
5db06880 NC |
6610 | NEXTVAL_NEXTTOKE.opval = |
6611 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
6612 | PL_lex_stuff = Nullsv; | |
6613 | force_next(THING); | |
6614 | ||
6615 | s = SKIPSPACE2(s,tmpwhite); | |
6616 | #else | |
09bef843 | 6617 | s = skipspace(s); |
5db06880 | 6618 | #endif |
4633a7c4 | 6619 | } |
09bef843 SB |
6620 | else |
6621 | have_proto = FALSE; | |
6622 | ||
6623 | if (*s == ':' && s[1] != ':') | |
6624 | PL_expect = attrful; | |
8e742a20 MHM |
6625 | else if (*s != '{' && key == KEY_sub) { |
6626 | if (!have_name) | |
6627 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
6628 | else if (*s != ';') | |
95b63a38 | 6629 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, (void*)PL_subname); |
8e742a20 | 6630 | } |
09bef843 | 6631 | |
5db06880 NC |
6632 | #ifdef PERL_MAD |
6633 | start_force(0); | |
6634 | if (tmpwhite) { | |
6635 | if (PL_madskills) | |
6b29d1f5 | 6636 | curmad('^', newSVpvs("")); |
5db06880 NC |
6637 | CURMAD('_', tmpwhite); |
6638 | } | |
6639 | force_next(0); | |
6640 | ||
cd81e915 | 6641 | PL_thistoken = subtoken; |
5db06880 | 6642 | #else |
09bef843 | 6643 | if (have_proto) { |
9ded7720 | 6644 | NEXTVAL_NEXTTOKE.opval = |
b1b65b59 | 6645 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); |
a0714e2c | 6646 | PL_lex_stuff = NULL; |
09bef843 | 6647 | force_next(THING); |
68dc0745 | 6648 | } |
5db06880 | 6649 | #endif |
09bef843 | 6650 | if (!have_name) { |
c99da370 | 6651 | sv_setpv(PL_subname, |
10edeb5d JH |
6652 | (const char *) |
6653 | (PL_curstash ? "__ANON__" : "__ANON__::__ANON__")); | |
09bef843 | 6654 | TOKEN(ANONSUB); |
4633a7c4 | 6655 | } |
5db06880 | 6656 | #ifndef PERL_MAD |
b1b65b59 JH |
6657 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6658 | FALSE, TRUE, TRUE); | |
5db06880 | 6659 | #endif |
09bef843 SB |
6660 | if (key == KEY_my) |
6661 | TOKEN(MYSUB); | |
6662 | TOKEN(SUB); | |
4633a7c4 | 6663 | } |
79072805 LW |
6664 | |
6665 | case KEY_system: | |
6666 | set_csh(); | |
a0d0e21e | 6667 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
6668 | |
6669 | case KEY_symlink: | |
a0d0e21e | 6670 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
6671 | |
6672 | case KEY_syscall: | |
a0d0e21e | 6673 | LOP(OP_SYSCALL,XTERM); |
79072805 | 6674 | |
c07a80fd | 6675 | case KEY_sysopen: |
6676 | LOP(OP_SYSOPEN,XTERM); | |
6677 | ||
137443ea | 6678 | case KEY_sysseek: |
6679 | LOP(OP_SYSSEEK,XTERM); | |
6680 | ||
79072805 | 6681 | case KEY_sysread: |
a0d0e21e | 6682 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
6683 | |
6684 | case KEY_syswrite: | |
a0d0e21e | 6685 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
6686 | |
6687 | case KEY_tr: | |
6688 | s = scan_trans(s); | |
6689 | TERM(sublex_start()); | |
6690 | ||
6691 | case KEY_tell: | |
6692 | UNI(OP_TELL); | |
6693 | ||
6694 | case KEY_telldir: | |
6695 | UNI(OP_TELLDIR); | |
6696 | ||
463ee0b2 | 6697 | case KEY_tie: |
a0d0e21e | 6698 | LOP(OP_TIE,XTERM); |
463ee0b2 | 6699 | |
c07a80fd | 6700 | case KEY_tied: |
6701 | UNI(OP_TIED); | |
6702 | ||
79072805 LW |
6703 | case KEY_time: |
6704 | FUN0(OP_TIME); | |
6705 | ||
6706 | case KEY_times: | |
6707 | FUN0(OP_TMS); | |
6708 | ||
6709 | case KEY_truncate: | |
a0d0e21e | 6710 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
6711 | |
6712 | case KEY_uc: | |
6713 | UNI(OP_UC); | |
6714 | ||
6715 | case KEY_ucfirst: | |
6716 | UNI(OP_UCFIRST); | |
6717 | ||
463ee0b2 LW |
6718 | case KEY_untie: |
6719 | UNI(OP_UNTIE); | |
6720 | ||
79072805 | 6721 | case KEY_until: |
57843af0 | 6722 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6723 | OPERATOR(UNTIL); |
6724 | ||
6725 | case KEY_unless: | |
57843af0 | 6726 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6727 | OPERATOR(UNLESS); |
6728 | ||
6729 | case KEY_unlink: | |
a0d0e21e | 6730 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
6731 | |
6732 | case KEY_undef: | |
6f33ba73 | 6733 | UNIDOR(OP_UNDEF); |
79072805 LW |
6734 | |
6735 | case KEY_unpack: | |
a0d0e21e | 6736 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
6737 | |
6738 | case KEY_utime: | |
a0d0e21e | 6739 | LOP(OP_UTIME,XTERM); |
79072805 LW |
6740 | |
6741 | case KEY_umask: | |
6f33ba73 | 6742 | UNIDOR(OP_UMASK); |
79072805 LW |
6743 | |
6744 | case KEY_unshift: | |
a0d0e21e LW |
6745 | LOP(OP_UNSHIFT,XTERM); |
6746 | ||
6747 | case KEY_use: | |
468aa647 | 6748 | s = tokenize_use(1, s); |
a0d0e21e | 6749 | OPERATOR(USE); |
79072805 LW |
6750 | |
6751 | case KEY_values: | |
6752 | UNI(OP_VALUES); | |
6753 | ||
6754 | case KEY_vec: | |
a0d0e21e | 6755 | LOP(OP_VEC,XTERM); |
79072805 | 6756 | |
0d863452 RH |
6757 | case KEY_when: |
6758 | yylval.ival = CopLINE(PL_curcop); | |
6759 | OPERATOR(WHEN); | |
6760 | ||
79072805 | 6761 | case KEY_while: |
57843af0 | 6762 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6763 | OPERATOR(WHILE); |
6764 | ||
6765 | case KEY_warn: | |
3280af22 | 6766 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 6767 | LOP(OP_WARN,XTERM); |
79072805 LW |
6768 | |
6769 | case KEY_wait: | |
6770 | FUN0(OP_WAIT); | |
6771 | ||
6772 | case KEY_waitpid: | |
a0d0e21e | 6773 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
6774 | |
6775 | case KEY_wantarray: | |
6776 | FUN0(OP_WANTARRAY); | |
6777 | ||
6778 | case KEY_write: | |
9d116dd7 JH |
6779 | #ifdef EBCDIC |
6780 | { | |
df3728a2 JH |
6781 | char ctl_l[2]; |
6782 | ctl_l[0] = toCTRL('L'); | |
6783 | ctl_l[1] = '\0'; | |
fafc274c | 6784 | gv_fetchpvn_flags(ctl_l, 1, GV_ADD|GV_NOTQUAL, SVt_PV); |
9d116dd7 JH |
6785 | } |
6786 | #else | |
fafc274c NC |
6787 | /* Make sure $^L is defined */ |
6788 | gv_fetchpvs("\f", GV_ADD|GV_NOTQUAL, SVt_PV); | |
9d116dd7 | 6789 | #endif |
79072805 LW |
6790 | UNI(OP_ENTERWRITE); |
6791 | ||
6792 | case KEY_x: | |
3280af22 | 6793 | if (PL_expect == XOPERATOR) |
79072805 LW |
6794 | Mop(OP_REPEAT); |
6795 | check_uni(); | |
6796 | goto just_a_word; | |
6797 | ||
a0d0e21e LW |
6798 | case KEY_xor: |
6799 | yylval.ival = OP_XOR; | |
6800 | OPERATOR(OROP); | |
6801 | ||
79072805 LW |
6802 | case KEY_y: |
6803 | s = scan_trans(s); | |
6804 | TERM(sublex_start()); | |
6805 | } | |
49dc05e3 | 6806 | }} |
79072805 | 6807 | } |
bf4acbe4 GS |
6808 | #ifdef __SC__ |
6809 | #pragma segment Main | |
6810 | #endif | |
79072805 | 6811 | |
e930465f JH |
6812 | static int |
6813 | S_pending_ident(pTHX) | |
8eceec63 | 6814 | { |
97aff369 | 6815 | dVAR; |
8eceec63 | 6816 | register char *d; |
bbd11bfc | 6817 | PADOFFSET tmp = 0; |
8eceec63 SC |
6818 | /* pit holds the identifier we read and pending_ident is reset */ |
6819 | char pit = PL_pending_ident; | |
6820 | PL_pending_ident = 0; | |
6821 | ||
cd81e915 | 6822 | /* PL_realtokenstart = realtokenend = PL_bufptr - SvPVX(PL_linestr); */ |
8eceec63 | 6823 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 6824 | "### Pending identifier '%s'\n", PL_tokenbuf); }); |
8eceec63 SC |
6825 | |
6826 | /* if we're in a my(), we can't allow dynamics here. | |
6827 | $foo'bar has already been turned into $foo::bar, so | |
6828 | just check for colons. | |
6829 | ||
6830 | if it's a legal name, the OP is a PADANY. | |
6831 | */ | |
6832 | if (PL_in_my) { | |
6833 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
6834 | if (strchr(PL_tokenbuf,':')) | |
6835 | yyerror(Perl_form(aTHX_ "No package name allowed for " | |
6836 | "variable %s in \"our\"", | |
6837 | PL_tokenbuf)); | |
dd2155a4 | 6838 | tmp = allocmy(PL_tokenbuf); |
8eceec63 SC |
6839 | } |
6840 | else { | |
6841 | if (strchr(PL_tokenbuf,':')) | |
952306ac RGS |
6842 | yyerror(Perl_form(aTHX_ PL_no_myglob, |
6843 | PL_in_my == KEY_my ? "my" : "state", PL_tokenbuf)); | |
8eceec63 SC |
6844 | |
6845 | yylval.opval = newOP(OP_PADANY, 0); | |
dd2155a4 | 6846 | yylval.opval->op_targ = allocmy(PL_tokenbuf); |
8eceec63 SC |
6847 | return PRIVATEREF; |
6848 | } | |
6849 | } | |
6850 | ||
6851 | /* | |
6852 | build the ops for accesses to a my() variable. | |
6853 | ||
6854 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
6855 | then used in a comparison. This catches most, but not | |
6856 | all cases. For instance, it catches | |
6857 | sort { my($a); $a <=> $b } | |
6858 | but not | |
6859 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
6860 | (although why you'd do that is anyone's guess). | |
6861 | */ | |
6862 | ||
6863 | if (!strchr(PL_tokenbuf,':')) { | |
8716503d DM |
6864 | if (!PL_in_my) |
6865 | tmp = pad_findmy(PL_tokenbuf); | |
6866 | if (tmp != NOT_IN_PAD) { | |
8eceec63 | 6867 | /* might be an "our" variable" */ |
00b1698f | 6868 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
8eceec63 | 6869 | /* build ops for a bareword */ |
b64e5050 AL |
6870 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
6871 | HEK * const stashname = HvNAME_HEK(stash); | |
6872 | SV * const sym = newSVhek(stashname); | |
396482e1 | 6873 | sv_catpvs(sym, "::"); |
8eceec63 SC |
6874 | sv_catpv(sym, PL_tokenbuf+1); |
6875 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); | |
6876 | yylval.opval->op_private = OPpCONST_ENTERED; | |
7a5fd60d | 6877 | gv_fetchsv(sym, |
8eceec63 SC |
6878 | (PL_in_eval |
6879 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 6880 | : GV_ADDMULTI |
8eceec63 SC |
6881 | ), |
6882 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
6883 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
6884 | : SVt_PVHV)); | |
6885 | return WORD; | |
6886 | } | |
6887 | ||
6888 | /* if it's a sort block and they're naming $a or $b */ | |
6889 | if (PL_last_lop_op == OP_SORT && | |
6890 | PL_tokenbuf[0] == '$' && | |
6891 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
6892 | && !PL_tokenbuf[2]) | |
6893 | { | |
6894 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
6895 | d < PL_bufend && *d != '\n'; | |
6896 | d++) | |
6897 | { | |
6898 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
6899 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
6900 | PL_tokenbuf); | |
6901 | } | |
6902 | } | |
6903 | } | |
6904 | ||
6905 | yylval.opval = newOP(OP_PADANY, 0); | |
6906 | yylval.opval->op_targ = tmp; | |
6907 | return PRIVATEREF; | |
6908 | } | |
6909 | } | |
6910 | ||
6911 | /* | |
6912 | Whine if they've said @foo in a doublequoted string, | |
6913 | and @foo isn't a variable we can find in the symbol | |
6914 | table. | |
6915 | */ | |
6916 | if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
f776e3cd | 6917 | GV *gv = gv_fetchpv(PL_tokenbuf+1, 0, SVt_PVAV); |
8eceec63 SC |
6918 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
6919 | && ckWARN(WARN_AMBIGUOUS)) | |
6920 | { | |
6921 | /* Downgraded from fatal to warning 20000522 mjd */ | |
9014280d | 6922 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
8eceec63 SC |
6923 | "Possible unintended interpolation of %s in string", |
6924 | PL_tokenbuf); | |
6925 | } | |
6926 | } | |
6927 | ||
6928 | /* build ops for a bareword */ | |
6929 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf+1, 0)); | |
6930 | yylval.opval->op_private = OPpCONST_ENTERED; | |
adc51b97 RGS |
6931 | gv_fetchpv( |
6932 | PL_tokenbuf+1, | |
d6069db2 RGS |
6933 | /* If the identifier refers to a stash, don't autovivify it. |
6934 | * Change 24660 had the side effect of causing symbol table | |
6935 | * hashes to always be defined, even if they were freshly | |
6936 | * created and the only reference in the entire program was | |
6937 | * the single statement with the defined %foo::bar:: test. | |
6938 | * It appears that all code in the wild doing this actually | |
6939 | * wants to know whether sub-packages have been loaded, so | |
6940 | * by avoiding auto-vivifying symbol tables, we ensure that | |
6941 | * defined %foo::bar:: continues to be false, and the existing | |
6942 | * tests still give the expected answers, even though what | |
6943 | * they're actually testing has now changed subtly. | |
6944 | */ | |
6945 | (*PL_tokenbuf == '%' && *(d = PL_tokenbuf + strlen(PL_tokenbuf) - 1) == ':' && d[-1] == ':' | |
6946 | ? 0 | |
6947 | : PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD), | |
adc51b97 RGS |
6948 | ((PL_tokenbuf[0] == '$') ? SVt_PV |
6949 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
6950 | : SVt_PVHV)); | |
8eceec63 SC |
6951 | return WORD; |
6952 | } | |
6953 | ||
4c3bbe0f MHM |
6954 | /* |
6955 | * The following code was generated by perl_keyword.pl. | |
6956 | */ | |
e2e1dd5a | 6957 | |
79072805 | 6958 | I32 |
5458a98a | 6959 | Perl_keyword (pTHX_ const char *name, I32 len, bool all_keywords) |
4c3bbe0f | 6960 | { |
952306ac | 6961 | dVAR; |
4c3bbe0f MHM |
6962 | switch (len) |
6963 | { | |
6964 | case 1: /* 5 tokens of length 1 */ | |
6965 | switch (name[0]) | |
e2e1dd5a | 6966 | { |
4c3bbe0f MHM |
6967 | case 'm': |
6968 | { /* m */ | |
6969 | return KEY_m; | |
6970 | } | |
6971 | ||
4c3bbe0f MHM |
6972 | case 'q': |
6973 | { /* q */ | |
6974 | return KEY_q; | |
6975 | } | |
6976 | ||
4c3bbe0f MHM |
6977 | case 's': |
6978 | { /* s */ | |
6979 | return KEY_s; | |
6980 | } | |
6981 | ||
4c3bbe0f MHM |
6982 | case 'x': |
6983 | { /* x */ | |
6984 | return -KEY_x; | |
6985 | } | |
6986 | ||
4c3bbe0f MHM |
6987 | case 'y': |
6988 | { /* y */ | |
6989 | return KEY_y; | |
6990 | } | |
6991 | ||
4c3bbe0f MHM |
6992 | default: |
6993 | goto unknown; | |
e2e1dd5a | 6994 | } |
4c3bbe0f MHM |
6995 | |
6996 | case 2: /* 18 tokens of length 2 */ | |
6997 | switch (name[0]) | |
e2e1dd5a | 6998 | { |
4c3bbe0f MHM |
6999 | case 'd': |
7000 | if (name[1] == 'o') | |
7001 | { /* do */ | |
7002 | return KEY_do; | |
7003 | } | |
7004 | ||
7005 | goto unknown; | |
7006 | ||
7007 | case 'e': | |
7008 | if (name[1] == 'q') | |
7009 | { /* eq */ | |
7010 | return -KEY_eq; | |
7011 | } | |
7012 | ||
7013 | goto unknown; | |
7014 | ||
7015 | case 'g': | |
7016 | switch (name[1]) | |
7017 | { | |
7018 | case 'e': | |
7019 | { /* ge */ | |
7020 | return -KEY_ge; | |
7021 | } | |
7022 | ||
4c3bbe0f MHM |
7023 | case 't': |
7024 | { /* gt */ | |
7025 | return -KEY_gt; | |
7026 | } | |
7027 | ||
4c3bbe0f MHM |
7028 | default: |
7029 | goto unknown; | |
7030 | } | |
7031 | ||
7032 | case 'i': | |
7033 | if (name[1] == 'f') | |
7034 | { /* if */ | |
7035 | return KEY_if; | |
7036 | } | |
7037 | ||
7038 | goto unknown; | |
7039 | ||
7040 | case 'l': | |
7041 | switch (name[1]) | |
7042 | { | |
7043 | case 'c': | |
7044 | { /* lc */ | |
7045 | return -KEY_lc; | |
7046 | } | |
7047 | ||
4c3bbe0f MHM |
7048 | case 'e': |
7049 | { /* le */ | |
7050 | return -KEY_le; | |
7051 | } | |
7052 | ||
4c3bbe0f MHM |
7053 | case 't': |
7054 | { /* lt */ | |
7055 | return -KEY_lt; | |
7056 | } | |
7057 | ||
4c3bbe0f MHM |
7058 | default: |
7059 | goto unknown; | |
7060 | } | |
7061 | ||
7062 | case 'm': | |
7063 | if (name[1] == 'y') | |
7064 | { /* my */ | |
7065 | return KEY_my; | |
7066 | } | |
7067 | ||
7068 | goto unknown; | |
7069 | ||
7070 | case 'n': | |
7071 | switch (name[1]) | |
7072 | { | |
7073 | case 'e': | |
7074 | { /* ne */ | |
7075 | return -KEY_ne; | |
7076 | } | |
7077 | ||
4c3bbe0f MHM |
7078 | case 'o': |
7079 | { /* no */ | |
7080 | return KEY_no; | |
7081 | } | |
7082 | ||
4c3bbe0f MHM |
7083 | default: |
7084 | goto unknown; | |
7085 | } | |
7086 | ||
7087 | case 'o': | |
7088 | if (name[1] == 'r') | |
7089 | { /* or */ | |
7090 | return -KEY_or; | |
7091 | } | |
7092 | ||
7093 | goto unknown; | |
7094 | ||
7095 | case 'q': | |
7096 | switch (name[1]) | |
7097 | { | |
7098 | case 'q': | |
7099 | { /* qq */ | |
7100 | return KEY_qq; | |
7101 | } | |
7102 | ||
4c3bbe0f MHM |
7103 | case 'r': |
7104 | { /* qr */ | |
7105 | return KEY_qr; | |
7106 | } | |
7107 | ||
4c3bbe0f MHM |
7108 | case 'w': |
7109 | { /* qw */ | |
7110 | return KEY_qw; | |
7111 | } | |
7112 | ||
4c3bbe0f MHM |
7113 | case 'x': |
7114 | { /* qx */ | |
7115 | return KEY_qx; | |
7116 | } | |
7117 | ||
4c3bbe0f MHM |
7118 | default: |
7119 | goto unknown; | |
7120 | } | |
7121 | ||
7122 | case 't': | |
7123 | if (name[1] == 'r') | |
7124 | { /* tr */ | |
7125 | return KEY_tr; | |
7126 | } | |
7127 | ||
7128 | goto unknown; | |
7129 | ||
7130 | case 'u': | |
7131 | if (name[1] == 'c') | |
7132 | { /* uc */ | |
7133 | return -KEY_uc; | |
7134 | } | |
7135 | ||
7136 | goto unknown; | |
7137 | ||
7138 | default: | |
7139 | goto unknown; | |
e2e1dd5a | 7140 | } |
4c3bbe0f | 7141 | |
0d863452 | 7142 | case 3: /* 29 tokens of length 3 */ |
4c3bbe0f | 7143 | switch (name[0]) |
e2e1dd5a | 7144 | { |
4c3bbe0f MHM |
7145 | case 'E': |
7146 | if (name[1] == 'N' && | |
7147 | name[2] == 'D') | |
7148 | { /* END */ | |
7149 | return KEY_END; | |
7150 | } | |
7151 | ||
7152 | goto unknown; | |
7153 | ||
7154 | case 'a': | |
7155 | switch (name[1]) | |
7156 | { | |
7157 | case 'b': | |
7158 | if (name[2] == 's') | |
7159 | { /* abs */ | |
7160 | return -KEY_abs; | |
7161 | } | |
7162 | ||
7163 | goto unknown; | |
7164 | ||
7165 | case 'n': | |
7166 | if (name[2] == 'd') | |
7167 | { /* and */ | |
7168 | return -KEY_and; | |
7169 | } | |
7170 | ||
7171 | goto unknown; | |
7172 | ||
7173 | default: | |
7174 | goto unknown; | |
7175 | } | |
7176 | ||
7177 | case 'c': | |
7178 | switch (name[1]) | |
7179 | { | |
7180 | case 'h': | |
7181 | if (name[2] == 'r') | |
7182 | { /* chr */ | |
7183 | return -KEY_chr; | |
7184 | } | |
7185 | ||
7186 | goto unknown; | |
7187 | ||
7188 | case 'm': | |
7189 | if (name[2] == 'p') | |
7190 | { /* cmp */ | |
7191 | return -KEY_cmp; | |
7192 | } | |
7193 | ||
7194 | goto unknown; | |
7195 | ||
7196 | case 'o': | |
7197 | if (name[2] == 's') | |
7198 | { /* cos */ | |
7199 | return -KEY_cos; | |
7200 | } | |
7201 | ||
7202 | goto unknown; | |
7203 | ||
7204 | default: | |
7205 | goto unknown; | |
7206 | } | |
7207 | ||
7208 | case 'd': | |
7209 | if (name[1] == 'i' && | |
7210 | name[2] == 'e') | |
7211 | { /* die */ | |
7212 | return -KEY_die; | |
7213 | } | |
7214 | ||
7215 | goto unknown; | |
7216 | ||
7217 | case 'e': | |
7218 | switch (name[1]) | |
7219 | { | |
7220 | case 'o': | |
7221 | if (name[2] == 'f') | |
7222 | { /* eof */ | |
7223 | return -KEY_eof; | |
7224 | } | |
7225 | ||
7226 | goto unknown; | |
7227 | ||
7228 | case 'r': | |
7229 | if (name[2] == 'r') | |
7230 | { /* err */ | |
5458a98a | 7231 | return (all_keywords || FEATURE_IS_ENABLED("err") ? -KEY_err : 0); |
4c3bbe0f MHM |
7232 | } |
7233 | ||
7234 | goto unknown; | |
7235 | ||
7236 | case 'x': | |
7237 | if (name[2] == 'p') | |
7238 | { /* exp */ | |
7239 | return -KEY_exp; | |
7240 | } | |
7241 | ||
7242 | goto unknown; | |
7243 | ||
7244 | default: | |
7245 | goto unknown; | |
7246 | } | |
7247 | ||
7248 | case 'f': | |
7249 | if (name[1] == 'o' && | |
7250 | name[2] == 'r') | |
7251 | { /* for */ | |
7252 | return KEY_for; | |
7253 | } | |
7254 | ||
7255 | goto unknown; | |
7256 | ||
7257 | case 'h': | |
7258 | if (name[1] == 'e' && | |
7259 | name[2] == 'x') | |
7260 | { /* hex */ | |
7261 | return -KEY_hex; | |
7262 | } | |
7263 | ||
7264 | goto unknown; | |
7265 | ||
7266 | case 'i': | |
7267 | if (name[1] == 'n' && | |
7268 | name[2] == 't') | |
7269 | { /* int */ | |
7270 | return -KEY_int; | |
7271 | } | |
7272 | ||
7273 | goto unknown; | |
7274 | ||
7275 | case 'l': | |
7276 | if (name[1] == 'o' && | |
7277 | name[2] == 'g') | |
7278 | { /* log */ | |
7279 | return -KEY_log; | |
7280 | } | |
7281 | ||
7282 | goto unknown; | |
7283 | ||
7284 | case 'm': | |
7285 | if (name[1] == 'a' && | |
7286 | name[2] == 'p') | |
7287 | { /* map */ | |
7288 | return KEY_map; | |
7289 | } | |
7290 | ||
7291 | goto unknown; | |
7292 | ||
7293 | case 'n': | |
7294 | if (name[1] == 'o' && | |
7295 | name[2] == 't') | |
7296 | { /* not */ | |
7297 | return -KEY_not; | |
7298 | } | |
7299 | ||
7300 | goto unknown; | |
7301 | ||
7302 | case 'o': | |
7303 | switch (name[1]) | |
7304 | { | |
7305 | case 'c': | |
7306 | if (name[2] == 't') | |
7307 | { /* oct */ | |
7308 | return -KEY_oct; | |
7309 | } | |
7310 | ||
7311 | goto unknown; | |
7312 | ||
7313 | case 'r': | |
7314 | if (name[2] == 'd') | |
7315 | { /* ord */ | |
7316 | return -KEY_ord; | |
7317 | } | |
7318 | ||
7319 | goto unknown; | |
7320 | ||
7321 | case 'u': | |
7322 | if (name[2] == 'r') | |
7323 | { /* our */ | |
7324 | return KEY_our; | |
7325 | } | |
7326 | ||
7327 | goto unknown; | |
7328 | ||
7329 | default: | |
7330 | goto unknown; | |
7331 | } | |
7332 | ||
7333 | case 'p': | |
7334 | if (name[1] == 'o') | |
7335 | { | |
7336 | switch (name[2]) | |
7337 | { | |
7338 | case 'p': | |
7339 | { /* pop */ | |
7340 | return -KEY_pop; | |
7341 | } | |
7342 | ||
4c3bbe0f MHM |
7343 | case 's': |
7344 | { /* pos */ | |
7345 | return KEY_pos; | |
7346 | } | |
7347 | ||
4c3bbe0f MHM |
7348 | default: |
7349 | goto unknown; | |
7350 | } | |
7351 | } | |
7352 | ||
7353 | goto unknown; | |
7354 | ||
7355 | case 'r': | |
7356 | if (name[1] == 'e' && | |
7357 | name[2] == 'f') | |
7358 | { /* ref */ | |
7359 | return -KEY_ref; | |
7360 | } | |
7361 | ||
7362 | goto unknown; | |
7363 | ||
7364 | case 's': | |
7365 | switch (name[1]) | |
7366 | { | |
0d863452 RH |
7367 | case 'a': |
7368 | if (name[2] == 'y') | |
7369 | { /* say */ | |
5458a98a | 7370 | return (all_keywords || FEATURE_IS_ENABLED("say") ? -KEY_say : 0); |
0d863452 RH |
7371 | } |
7372 | ||
7373 | goto unknown; | |
7374 | ||
4c3bbe0f MHM |
7375 | case 'i': |
7376 | if (name[2] == 'n') | |
7377 | { /* sin */ | |
7378 | return -KEY_sin; | |
7379 | } | |
7380 | ||
7381 | goto unknown; | |
7382 | ||
7383 | case 'u': | |
7384 | if (name[2] == 'b') | |
7385 | { /* sub */ | |
7386 | return KEY_sub; | |
7387 | } | |
7388 | ||
7389 | goto unknown; | |
7390 | ||
7391 | default: | |
7392 | goto unknown; | |
7393 | } | |
7394 | ||
7395 | case 't': | |
7396 | if (name[1] == 'i' && | |
7397 | name[2] == 'e') | |
7398 | { /* tie */ | |
7399 | return KEY_tie; | |
7400 | } | |
7401 | ||
7402 | goto unknown; | |
7403 | ||
7404 | case 'u': | |
7405 | if (name[1] == 's' && | |
7406 | name[2] == 'e') | |
7407 | { /* use */ | |
7408 | return KEY_use; | |
7409 | } | |
7410 | ||
7411 | goto unknown; | |
7412 | ||
7413 | case 'v': | |
7414 | if (name[1] == 'e' && | |
7415 | name[2] == 'c') | |
7416 | { /* vec */ | |
7417 | return -KEY_vec; | |
7418 | } | |
7419 | ||
7420 | goto unknown; | |
7421 | ||
7422 | case 'x': | |
7423 | if (name[1] == 'o' && | |
7424 | name[2] == 'r') | |
7425 | { /* xor */ | |
7426 | return -KEY_xor; | |
7427 | } | |
7428 | ||
7429 | goto unknown; | |
7430 | ||
7431 | default: | |
7432 | goto unknown; | |
e2e1dd5a | 7433 | } |
4c3bbe0f | 7434 | |
0d863452 | 7435 | case 4: /* 41 tokens of length 4 */ |
4c3bbe0f | 7436 | switch (name[0]) |
e2e1dd5a | 7437 | { |
4c3bbe0f MHM |
7438 | case 'C': |
7439 | if (name[1] == 'O' && | |
7440 | name[2] == 'R' && | |
7441 | name[3] == 'E') | |
7442 | { /* CORE */ | |
7443 | return -KEY_CORE; | |
7444 | } | |
7445 | ||
7446 | goto unknown; | |
7447 | ||
7448 | case 'I': | |
7449 | if (name[1] == 'N' && | |
7450 | name[2] == 'I' && | |
7451 | name[3] == 'T') | |
7452 | { /* INIT */ | |
7453 | return KEY_INIT; | |
7454 | } | |
7455 | ||
7456 | goto unknown; | |
7457 | ||
7458 | case 'b': | |
7459 | if (name[1] == 'i' && | |
7460 | name[2] == 'n' && | |
7461 | name[3] == 'd') | |
7462 | { /* bind */ | |
7463 | return -KEY_bind; | |
7464 | } | |
7465 | ||
7466 | goto unknown; | |
7467 | ||
7468 | case 'c': | |
7469 | if (name[1] == 'h' && | |
7470 | name[2] == 'o' && | |
7471 | name[3] == 'p') | |
7472 | { /* chop */ | |
7473 | return -KEY_chop; | |
7474 | } | |
7475 | ||
7476 | goto unknown; | |
7477 | ||
7478 | case 'd': | |
7479 | if (name[1] == 'u' && | |
7480 | name[2] == 'm' && | |
7481 | name[3] == 'p') | |
7482 | { /* dump */ | |
7483 | return -KEY_dump; | |
7484 | } | |
7485 | ||
7486 | goto unknown; | |
7487 | ||
7488 | case 'e': | |
7489 | switch (name[1]) | |
7490 | { | |
7491 | case 'a': | |
7492 | if (name[2] == 'c' && | |
7493 | name[3] == 'h') | |
7494 | { /* each */ | |
7495 | return -KEY_each; | |
7496 | } | |
7497 | ||
7498 | goto unknown; | |
7499 | ||
7500 | case 'l': | |
7501 | if (name[2] == 's' && | |
7502 | name[3] == 'e') | |
7503 | { /* else */ | |
7504 | return KEY_else; | |
7505 | } | |
7506 | ||
7507 | goto unknown; | |
7508 | ||
7509 | case 'v': | |
7510 | if (name[2] == 'a' && | |
7511 | name[3] == 'l') | |
7512 | { /* eval */ | |
7513 | return KEY_eval; | |
7514 | } | |
7515 | ||
7516 | goto unknown; | |
7517 | ||
7518 | case 'x': | |
7519 | switch (name[2]) | |
7520 | { | |
7521 | case 'e': | |
7522 | if (name[3] == 'c') | |
7523 | { /* exec */ | |
7524 | return -KEY_exec; | |
7525 | } | |
7526 | ||
7527 | goto unknown; | |
7528 | ||
7529 | case 'i': | |
7530 | if (name[3] == 't') | |
7531 | { /* exit */ | |
7532 | return -KEY_exit; | |
7533 | } | |
7534 | ||
7535 | goto unknown; | |
7536 | ||
7537 | default: | |
7538 | goto unknown; | |
7539 | } | |
7540 | ||
7541 | default: | |
7542 | goto unknown; | |
7543 | } | |
7544 | ||
7545 | case 'f': | |
7546 | if (name[1] == 'o' && | |
7547 | name[2] == 'r' && | |
7548 | name[3] == 'k') | |
7549 | { /* fork */ | |
7550 | return -KEY_fork; | |
7551 | } | |
7552 | ||
7553 | goto unknown; | |
7554 | ||
7555 | case 'g': | |
7556 | switch (name[1]) | |
7557 | { | |
7558 | case 'e': | |
7559 | if (name[2] == 't' && | |
7560 | name[3] == 'c') | |
7561 | { /* getc */ | |
7562 | return -KEY_getc; | |
7563 | } | |
7564 | ||
7565 | goto unknown; | |
7566 | ||
7567 | case 'l': | |
7568 | if (name[2] == 'o' && | |
7569 | name[3] == 'b') | |
7570 | { /* glob */ | |
7571 | return KEY_glob; | |
7572 | } | |
7573 | ||
7574 | goto unknown; | |
7575 | ||
7576 | case 'o': | |
7577 | if (name[2] == 't' && | |
7578 | name[3] == 'o') | |
7579 | { /* goto */ | |
7580 | return KEY_goto; | |
7581 | } | |
7582 | ||
7583 | goto unknown; | |
7584 | ||
7585 | case 'r': | |
7586 | if (name[2] == 'e' && | |
7587 | name[3] == 'p') | |
7588 | { /* grep */ | |
7589 | return KEY_grep; | |
7590 | } | |
7591 | ||
7592 | goto unknown; | |
7593 | ||
7594 | default: | |
7595 | goto unknown; | |
7596 | } | |
7597 | ||
7598 | case 'j': | |
7599 | if (name[1] == 'o' && | |
7600 | name[2] == 'i' && | |
7601 | name[3] == 'n') | |
7602 | { /* join */ | |
7603 | return -KEY_join; | |
7604 | } | |
7605 | ||
7606 | goto unknown; | |
7607 | ||
7608 | case 'k': | |
7609 | switch (name[1]) | |
7610 | { | |
7611 | case 'e': | |
7612 | if (name[2] == 'y' && | |
7613 | name[3] == 's') | |
7614 | { /* keys */ | |
7615 | return -KEY_keys; | |
7616 | } | |
7617 | ||
7618 | goto unknown; | |
7619 | ||
7620 | case 'i': | |
7621 | if (name[2] == 'l' && | |
7622 | name[3] == 'l') | |
7623 | { /* kill */ | |
7624 | return -KEY_kill; | |
7625 | } | |
7626 | ||
7627 | goto unknown; | |
7628 | ||
7629 | default: | |
7630 | goto unknown; | |
7631 | } | |
7632 | ||
7633 | case 'l': | |
7634 | switch (name[1]) | |
7635 | { | |
7636 | case 'a': | |
7637 | if (name[2] == 's' && | |
7638 | name[3] == 't') | |
7639 | { /* last */ | |
7640 | return KEY_last; | |
7641 | } | |
7642 | ||
7643 | goto unknown; | |
7644 | ||
7645 | case 'i': | |
7646 | if (name[2] == 'n' && | |
7647 | name[3] == 'k') | |
7648 | { /* link */ | |
7649 | return -KEY_link; | |
7650 | } | |
7651 | ||
7652 | goto unknown; | |
7653 | ||
7654 | case 'o': | |
7655 | if (name[2] == 'c' && | |
7656 | name[3] == 'k') | |
7657 | { /* lock */ | |
7658 | return -KEY_lock; | |
7659 | } | |
7660 | ||
7661 | goto unknown; | |
7662 | ||
7663 | default: | |
7664 | goto unknown; | |
7665 | } | |
7666 | ||
7667 | case 'n': | |
7668 | if (name[1] == 'e' && | |
7669 | name[2] == 'x' && | |
7670 | name[3] == 't') | |
7671 | { /* next */ | |
7672 | return KEY_next; | |
7673 | } | |
7674 | ||
7675 | goto unknown; | |
7676 | ||
7677 | case 'o': | |
7678 | if (name[1] == 'p' && | |
7679 | name[2] == 'e' && | |
7680 | name[3] == 'n') | |
7681 | { /* open */ | |
7682 | return -KEY_open; | |
7683 | } | |
7684 | ||
7685 | goto unknown; | |
7686 | ||
7687 | case 'p': | |
7688 | switch (name[1]) | |
7689 | { | |
7690 | case 'a': | |
7691 | if (name[2] == 'c' && | |
7692 | name[3] == 'k') | |
7693 | { /* pack */ | |
7694 | return -KEY_pack; | |
7695 | } | |
7696 | ||
7697 | goto unknown; | |
7698 | ||
7699 | case 'i': | |
7700 | if (name[2] == 'p' && | |
7701 | name[3] == 'e') | |
7702 | { /* pipe */ | |
7703 | return -KEY_pipe; | |
7704 | } | |
7705 | ||
7706 | goto unknown; | |
7707 | ||
7708 | case 'u': | |
7709 | if (name[2] == 's' && | |
7710 | name[3] == 'h') | |
7711 | { /* push */ | |
7712 | return -KEY_push; | |
7713 | } | |
7714 | ||
7715 | goto unknown; | |
7716 | ||
7717 | default: | |
7718 | goto unknown; | |
7719 | } | |
7720 | ||
7721 | case 'r': | |
7722 | switch (name[1]) | |
7723 | { | |
7724 | case 'a': | |
7725 | if (name[2] == 'n' && | |
7726 | name[3] == 'd') | |
7727 | { /* rand */ | |
7728 | return -KEY_rand; | |
7729 | } | |
7730 | ||
7731 | goto unknown; | |
7732 | ||
7733 | case 'e': | |
7734 | switch (name[2]) | |
7735 | { | |
7736 | case 'a': | |
7737 | if (name[3] == 'd') | |
7738 | { /* read */ | |
7739 | return -KEY_read; | |
7740 | } | |
7741 | ||
7742 | goto unknown; | |
7743 | ||
7744 | case 'c': | |
7745 | if (name[3] == 'v') | |
7746 | { /* recv */ | |
7747 | return -KEY_recv; | |
7748 | } | |
7749 | ||
7750 | goto unknown; | |
7751 | ||
7752 | case 'd': | |
7753 | if (name[3] == 'o') | |
7754 | { /* redo */ | |
7755 | return KEY_redo; | |
7756 | } | |
7757 | ||
7758 | goto unknown; | |
7759 | ||
7760 | default: | |
7761 | goto unknown; | |
7762 | } | |
7763 | ||
7764 | default: | |
7765 | goto unknown; | |
7766 | } | |
7767 | ||
7768 | case 's': | |
7769 | switch (name[1]) | |
7770 | { | |
7771 | case 'e': | |
7772 | switch (name[2]) | |
7773 | { | |
7774 | case 'e': | |
7775 | if (name[3] == 'k') | |
7776 | { /* seek */ | |
7777 | return -KEY_seek; | |
7778 | } | |
7779 | ||
7780 | goto unknown; | |
7781 | ||
7782 | case 'n': | |
7783 | if (name[3] == 'd') | |
7784 | { /* send */ | |
7785 | return -KEY_send; | |
7786 | } | |
7787 | ||
7788 | goto unknown; | |
7789 | ||
7790 | default: | |
7791 | goto unknown; | |
7792 | } | |
7793 | ||
7794 | case 'o': | |
7795 | if (name[2] == 'r' && | |
7796 | name[3] == 't') | |
7797 | { /* sort */ | |
7798 | return KEY_sort; | |
7799 | } | |
7800 | ||
7801 | goto unknown; | |
7802 | ||
7803 | case 'q': | |
7804 | if (name[2] == 'r' && | |
7805 | name[3] == 't') | |
7806 | { /* sqrt */ | |
7807 | return -KEY_sqrt; | |
7808 | } | |
7809 | ||
7810 | goto unknown; | |
7811 | ||
7812 | case 't': | |
7813 | if (name[2] == 'a' && | |
7814 | name[3] == 't') | |
7815 | { /* stat */ | |
7816 | return -KEY_stat; | |
7817 | } | |
7818 | ||
7819 | goto unknown; | |
7820 | ||
7821 | default: | |
7822 | goto unknown; | |
7823 | } | |
7824 | ||
7825 | case 't': | |
7826 | switch (name[1]) | |
7827 | { | |
7828 | case 'e': | |
7829 | if (name[2] == 'l' && | |
7830 | name[3] == 'l') | |
7831 | { /* tell */ | |
7832 | return -KEY_tell; | |
7833 | } | |
7834 | ||
7835 | goto unknown; | |
7836 | ||
7837 | case 'i': | |
7838 | switch (name[2]) | |
7839 | { | |
7840 | case 'e': | |
7841 | if (name[3] == 'd') | |
7842 | { /* tied */ | |
7843 | return KEY_tied; | |
7844 | } | |
7845 | ||
7846 | goto unknown; | |
7847 | ||
7848 | case 'm': | |
7849 | if (name[3] == 'e') | |
7850 | { /* time */ | |
7851 | return -KEY_time; | |
7852 | } | |
7853 | ||
7854 | goto unknown; | |
7855 | ||
7856 | default: | |
7857 | goto unknown; | |
7858 | } | |
7859 | ||
7860 | default: | |
7861 | goto unknown; | |
7862 | } | |
7863 | ||
7864 | case 'w': | |
0d863452 | 7865 | switch (name[1]) |
4c3bbe0f | 7866 | { |
0d863452 | 7867 | case 'a': |
952306ac RGS |
7868 | switch (name[2]) |
7869 | { | |
7870 | case 'i': | |
7871 | if (name[3] == 't') | |
7872 | { /* wait */ | |
7873 | return -KEY_wait; | |
7874 | } | |
4c3bbe0f | 7875 | |
952306ac | 7876 | goto unknown; |
4c3bbe0f | 7877 | |
952306ac RGS |
7878 | case 'r': |
7879 | if (name[3] == 'n') | |
7880 | { /* warn */ | |
7881 | return -KEY_warn; | |
7882 | } | |
4c3bbe0f | 7883 | |
952306ac | 7884 | goto unknown; |
4c3bbe0f | 7885 | |
952306ac RGS |
7886 | default: |
7887 | goto unknown; | |
7888 | } | |
0d863452 RH |
7889 | |
7890 | case 'h': | |
7891 | if (name[2] == 'e' && | |
7892 | name[3] == 'n') | |
7893 | { /* when */ | |
5458a98a | 7894 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_when : 0); |
952306ac | 7895 | } |
4c3bbe0f | 7896 | |
952306ac | 7897 | goto unknown; |
4c3bbe0f | 7898 | |
952306ac RGS |
7899 | default: |
7900 | goto unknown; | |
7901 | } | |
4c3bbe0f | 7902 | |
0d863452 RH |
7903 | default: |
7904 | goto unknown; | |
7905 | } | |
7906 | ||
952306ac | 7907 | case 5: /* 39 tokens of length 5 */ |
4c3bbe0f | 7908 | switch (name[0]) |
e2e1dd5a | 7909 | { |
4c3bbe0f MHM |
7910 | case 'B': |
7911 | if (name[1] == 'E' && | |
7912 | name[2] == 'G' && | |
7913 | name[3] == 'I' && | |
7914 | name[4] == 'N') | |
7915 | { /* BEGIN */ | |
7916 | return KEY_BEGIN; | |
7917 | } | |
7918 | ||
7919 | goto unknown; | |
7920 | ||
7921 | case 'C': | |
7922 | if (name[1] == 'H' && | |
7923 | name[2] == 'E' && | |
7924 | name[3] == 'C' && | |
7925 | name[4] == 'K') | |
7926 | { /* CHECK */ | |
7927 | return KEY_CHECK; | |
7928 | } | |
7929 | ||
7930 | goto unknown; | |
7931 | ||
7932 | case 'a': | |
7933 | switch (name[1]) | |
7934 | { | |
7935 | case 'l': | |
7936 | if (name[2] == 'a' && | |
7937 | name[3] == 'r' && | |
7938 | name[4] == 'm') | |
7939 | { /* alarm */ | |
7940 | return -KEY_alarm; | |
7941 | } | |
7942 | ||
7943 | goto unknown; | |
7944 | ||
7945 | case 't': | |
7946 | if (name[2] == 'a' && | |
7947 | name[3] == 'n' && | |
7948 | name[4] == '2') | |
7949 | { /* atan2 */ | |
7950 | return -KEY_atan2; | |
7951 | } | |
7952 | ||
7953 | goto unknown; | |
7954 | ||
7955 | default: | |
7956 | goto unknown; | |
7957 | } | |
7958 | ||
7959 | case 'b': | |
0d863452 RH |
7960 | switch (name[1]) |
7961 | { | |
7962 | case 'l': | |
7963 | if (name[2] == 'e' && | |
952306ac RGS |
7964 | name[3] == 's' && |
7965 | name[4] == 's') | |
7966 | { /* bless */ | |
7967 | return -KEY_bless; | |
7968 | } | |
4c3bbe0f | 7969 | |
952306ac | 7970 | goto unknown; |
4c3bbe0f | 7971 | |
0d863452 RH |
7972 | case 'r': |
7973 | if (name[2] == 'e' && | |
7974 | name[3] == 'a' && | |
7975 | name[4] == 'k') | |
7976 | { /* break */ | |
5458a98a | 7977 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? -KEY_break : 0); |
0d863452 RH |
7978 | } |
7979 | ||
7980 | goto unknown; | |
7981 | ||
7982 | default: | |
7983 | goto unknown; | |
7984 | } | |
7985 | ||
4c3bbe0f MHM |
7986 | case 'c': |
7987 | switch (name[1]) | |
7988 | { | |
7989 | case 'h': | |
7990 | switch (name[2]) | |
7991 | { | |
7992 | case 'd': | |
7993 | if (name[3] == 'i' && | |
7994 | name[4] == 'r') | |
7995 | { /* chdir */ | |
7996 | return -KEY_chdir; | |
7997 | } | |
7998 | ||
7999 | goto unknown; | |
8000 | ||
8001 | case 'm': | |
8002 | if (name[3] == 'o' && | |
8003 | name[4] == 'd') | |
8004 | { /* chmod */ | |
8005 | return -KEY_chmod; | |
8006 | } | |
8007 | ||
8008 | goto unknown; | |
8009 | ||
8010 | case 'o': | |
8011 | switch (name[3]) | |
8012 | { | |
8013 | case 'm': | |
8014 | if (name[4] == 'p') | |
8015 | { /* chomp */ | |
8016 | return -KEY_chomp; | |
8017 | } | |
8018 | ||
8019 | goto unknown; | |
8020 | ||
8021 | case 'w': | |
8022 | if (name[4] == 'n') | |
8023 | { /* chown */ | |
8024 | return -KEY_chown; | |
8025 | } | |
8026 | ||
8027 | goto unknown; | |
8028 | ||
8029 | default: | |
8030 | goto unknown; | |
8031 | } | |
8032 | ||
8033 | default: | |
8034 | goto unknown; | |
8035 | } | |
8036 | ||
8037 | case 'l': | |
8038 | if (name[2] == 'o' && | |
8039 | name[3] == 's' && | |
8040 | name[4] == 'e') | |
8041 | { /* close */ | |
8042 | return -KEY_close; | |
8043 | } | |
8044 | ||
8045 | goto unknown; | |
8046 | ||
8047 | case 'r': | |
8048 | if (name[2] == 'y' && | |
8049 | name[3] == 'p' && | |
8050 | name[4] == 't') | |
8051 | { /* crypt */ | |
8052 | return -KEY_crypt; | |
8053 | } | |
8054 | ||
8055 | goto unknown; | |
8056 | ||
8057 | default: | |
8058 | goto unknown; | |
8059 | } | |
8060 | ||
8061 | case 'e': | |
8062 | if (name[1] == 'l' && | |
8063 | name[2] == 's' && | |
8064 | name[3] == 'i' && | |
8065 | name[4] == 'f') | |
8066 | { /* elsif */ | |
8067 | return KEY_elsif; | |
8068 | } | |
8069 | ||
8070 | goto unknown; | |
8071 | ||
8072 | case 'f': | |
8073 | switch (name[1]) | |
8074 | { | |
8075 | case 'c': | |
8076 | if (name[2] == 'n' && | |
8077 | name[3] == 't' && | |
8078 | name[4] == 'l') | |
8079 | { /* fcntl */ | |
8080 | return -KEY_fcntl; | |
8081 | } | |
8082 | ||
8083 | goto unknown; | |
8084 | ||
8085 | case 'l': | |
8086 | if (name[2] == 'o' && | |
8087 | name[3] == 'c' && | |
8088 | name[4] == 'k') | |
8089 | { /* flock */ | |
8090 | return -KEY_flock; | |
8091 | } | |
8092 | ||
8093 | goto unknown; | |
8094 | ||
8095 | default: | |
8096 | goto unknown; | |
8097 | } | |
8098 | ||
0d863452 RH |
8099 | case 'g': |
8100 | if (name[1] == 'i' && | |
8101 | name[2] == 'v' && | |
8102 | name[3] == 'e' && | |
8103 | name[4] == 'n') | |
8104 | { /* given */ | |
5458a98a | 8105 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_given : 0); |
0d863452 RH |
8106 | } |
8107 | ||
8108 | goto unknown; | |
8109 | ||
4c3bbe0f MHM |
8110 | case 'i': |
8111 | switch (name[1]) | |
8112 | { | |
8113 | case 'n': | |
8114 | if (name[2] == 'd' && | |
8115 | name[3] == 'e' && | |
8116 | name[4] == 'x') | |
8117 | { /* index */ | |
8118 | return -KEY_index; | |
8119 | } | |
8120 | ||
8121 | goto unknown; | |
8122 | ||
8123 | case 'o': | |
8124 | if (name[2] == 'c' && | |
8125 | name[3] == 't' && | |
8126 | name[4] == 'l') | |
8127 | { /* ioctl */ | |
8128 | return -KEY_ioctl; | |
8129 | } | |
8130 | ||
8131 | goto unknown; | |
8132 | ||
8133 | default: | |
8134 | goto unknown; | |
8135 | } | |
8136 | ||
8137 | case 'l': | |
8138 | switch (name[1]) | |
8139 | { | |
8140 | case 'o': | |
8141 | if (name[2] == 'c' && | |
8142 | name[3] == 'a' && | |
8143 | name[4] == 'l') | |
8144 | { /* local */ | |
8145 | return KEY_local; | |
8146 | } | |
8147 | ||
8148 | goto unknown; | |
8149 | ||
8150 | case 's': | |
8151 | if (name[2] == 't' && | |
8152 | name[3] == 'a' && | |
8153 | name[4] == 't') | |
8154 | { /* lstat */ | |
8155 | return -KEY_lstat; | |
8156 | } | |
8157 | ||
8158 | goto unknown; | |
8159 | ||
8160 | default: | |
8161 | goto unknown; | |
8162 | } | |
8163 | ||
8164 | case 'm': | |
8165 | if (name[1] == 'k' && | |
8166 | name[2] == 'd' && | |
8167 | name[3] == 'i' && | |
8168 | name[4] == 'r') | |
8169 | { /* mkdir */ | |
8170 | return -KEY_mkdir; | |
8171 | } | |
8172 | ||
8173 | goto unknown; | |
8174 | ||
8175 | case 'p': | |
8176 | if (name[1] == 'r' && | |
8177 | name[2] == 'i' && | |
8178 | name[3] == 'n' && | |
8179 | name[4] == 't') | |
8180 | { /* print */ | |
8181 | return KEY_print; | |
8182 | } | |
8183 | ||
8184 | goto unknown; | |
8185 | ||
8186 | case 'r': | |
8187 | switch (name[1]) | |
8188 | { | |
8189 | case 'e': | |
8190 | if (name[2] == 's' && | |
8191 | name[3] == 'e' && | |
8192 | name[4] == 't') | |
8193 | { /* reset */ | |
8194 | return -KEY_reset; | |
8195 | } | |
8196 | ||
8197 | goto unknown; | |
8198 | ||
8199 | case 'm': | |
8200 | if (name[2] == 'd' && | |
8201 | name[3] == 'i' && | |
8202 | name[4] == 'r') | |
8203 | { /* rmdir */ | |
8204 | return -KEY_rmdir; | |
8205 | } | |
8206 | ||
8207 | goto unknown; | |
8208 | ||
8209 | default: | |
8210 | goto unknown; | |
8211 | } | |
8212 | ||
8213 | case 's': | |
8214 | switch (name[1]) | |
8215 | { | |
8216 | case 'e': | |
8217 | if (name[2] == 'm' && | |
8218 | name[3] == 'o' && | |
8219 | name[4] == 'p') | |
8220 | { /* semop */ | |
8221 | return -KEY_semop; | |
8222 | } | |
8223 | ||
8224 | goto unknown; | |
8225 | ||
8226 | case 'h': | |
8227 | if (name[2] == 'i' && | |
8228 | name[3] == 'f' && | |
8229 | name[4] == 't') | |
8230 | { /* shift */ | |
8231 | return -KEY_shift; | |
8232 | } | |
8233 | ||
8234 | goto unknown; | |
8235 | ||
8236 | case 'l': | |
8237 | if (name[2] == 'e' && | |
8238 | name[3] == 'e' && | |
8239 | name[4] == 'p') | |
8240 | { /* sleep */ | |
8241 | return -KEY_sleep; | |
8242 | } | |
8243 | ||
8244 | goto unknown; | |
8245 | ||
8246 | case 'p': | |
8247 | if (name[2] == 'l' && | |
8248 | name[3] == 'i' && | |
8249 | name[4] == 't') | |
8250 | { /* split */ | |
8251 | return KEY_split; | |
8252 | } | |
8253 | ||
8254 | goto unknown; | |
8255 | ||
8256 | case 'r': | |
8257 | if (name[2] == 'a' && | |
8258 | name[3] == 'n' && | |
8259 | name[4] == 'd') | |
8260 | { /* srand */ | |
8261 | return -KEY_srand; | |
8262 | } | |
8263 | ||
8264 | goto unknown; | |
8265 | ||
8266 | case 't': | |
952306ac RGS |
8267 | switch (name[2]) |
8268 | { | |
8269 | case 'a': | |
8270 | if (name[3] == 't' && | |
8271 | name[4] == 'e') | |
8272 | { /* state */ | |
5458a98a | 8273 | return (all_keywords || FEATURE_IS_ENABLED("state") ? KEY_state : 0); |
952306ac | 8274 | } |
4c3bbe0f | 8275 | |
952306ac RGS |
8276 | goto unknown; |
8277 | ||
8278 | case 'u': | |
8279 | if (name[3] == 'd' && | |
8280 | name[4] == 'y') | |
8281 | { /* study */ | |
8282 | return KEY_study; | |
8283 | } | |
8284 | ||
8285 | goto unknown; | |
8286 | ||
8287 | default: | |
8288 | goto unknown; | |
8289 | } | |
4c3bbe0f MHM |
8290 | |
8291 | default: | |
8292 | goto unknown; | |
8293 | } | |
8294 | ||
8295 | case 't': | |
8296 | if (name[1] == 'i' && | |
8297 | name[2] == 'm' && | |
8298 | name[3] == 'e' && | |
8299 | name[4] == 's') | |
8300 | { /* times */ | |
8301 | return -KEY_times; | |
8302 | } | |
8303 | ||
8304 | goto unknown; | |
8305 | ||
8306 | case 'u': | |
8307 | switch (name[1]) | |
8308 | { | |
8309 | case 'm': | |
8310 | if (name[2] == 'a' && | |
8311 | name[3] == 's' && | |
8312 | name[4] == 'k') | |
8313 | { /* umask */ | |
8314 | return -KEY_umask; | |
8315 | } | |
8316 | ||
8317 | goto unknown; | |
8318 | ||
8319 | case 'n': | |
8320 | switch (name[2]) | |
8321 | { | |
8322 | case 'd': | |
8323 | if (name[3] == 'e' && | |
8324 | name[4] == 'f') | |
8325 | { /* undef */ | |
8326 | return KEY_undef; | |
8327 | } | |
8328 | ||
8329 | goto unknown; | |
8330 | ||
8331 | case 't': | |
8332 | if (name[3] == 'i') | |
8333 | { | |
8334 | switch (name[4]) | |
8335 | { | |
8336 | case 'e': | |
8337 | { /* untie */ | |
8338 | return KEY_untie; | |
8339 | } | |
8340 | ||
4c3bbe0f MHM |
8341 | case 'l': |
8342 | { /* until */ | |
8343 | return KEY_until; | |
8344 | } | |
8345 | ||
4c3bbe0f MHM |
8346 | default: |
8347 | goto unknown; | |
8348 | } | |
8349 | } | |
8350 | ||
8351 | goto unknown; | |
8352 | ||
8353 | default: | |
8354 | goto unknown; | |
8355 | } | |
8356 | ||
8357 | case 't': | |
8358 | if (name[2] == 'i' && | |
8359 | name[3] == 'm' && | |
8360 | name[4] == 'e') | |
8361 | { /* utime */ | |
8362 | return -KEY_utime; | |
8363 | } | |
8364 | ||
8365 | goto unknown; | |
8366 | ||
8367 | default: | |
8368 | goto unknown; | |
8369 | } | |
8370 | ||
8371 | case 'w': | |
8372 | switch (name[1]) | |
8373 | { | |
8374 | case 'h': | |
8375 | if (name[2] == 'i' && | |
8376 | name[3] == 'l' && | |
8377 | name[4] == 'e') | |
8378 | { /* while */ | |
8379 | return KEY_while; | |
8380 | } | |
8381 | ||
8382 | goto unknown; | |
8383 | ||
8384 | case 'r': | |
8385 | if (name[2] == 'i' && | |
8386 | name[3] == 't' && | |
8387 | name[4] == 'e') | |
8388 | { /* write */ | |
8389 | return -KEY_write; | |
8390 | } | |
8391 | ||
8392 | goto unknown; | |
8393 | ||
8394 | default: | |
8395 | goto unknown; | |
8396 | } | |
8397 | ||
8398 | default: | |
8399 | goto unknown; | |
e2e1dd5a | 8400 | } |
4c3bbe0f MHM |
8401 | |
8402 | case 6: /* 33 tokens of length 6 */ | |
8403 | switch (name[0]) | |
8404 | { | |
8405 | case 'a': | |
8406 | if (name[1] == 'c' && | |
8407 | name[2] == 'c' && | |
8408 | name[3] == 'e' && | |
8409 | name[4] == 'p' && | |
8410 | name[5] == 't') | |
8411 | { /* accept */ | |
8412 | return -KEY_accept; | |
8413 | } | |
8414 | ||
8415 | goto unknown; | |
8416 | ||
8417 | case 'c': | |
8418 | switch (name[1]) | |
8419 | { | |
8420 | case 'a': | |
8421 | if (name[2] == 'l' && | |
8422 | name[3] == 'l' && | |
8423 | name[4] == 'e' && | |
8424 | name[5] == 'r') | |
8425 | { /* caller */ | |
8426 | return -KEY_caller; | |
8427 | } | |
8428 | ||
8429 | goto unknown; | |
8430 | ||
8431 | case 'h': | |
8432 | if (name[2] == 'r' && | |
8433 | name[3] == 'o' && | |
8434 | name[4] == 'o' && | |
8435 | name[5] == 't') | |
8436 | { /* chroot */ | |
8437 | return -KEY_chroot; | |
8438 | } | |
8439 | ||
8440 | goto unknown; | |
8441 | ||
8442 | default: | |
8443 | goto unknown; | |
8444 | } | |
8445 | ||
8446 | case 'd': | |
8447 | if (name[1] == 'e' && | |
8448 | name[2] == 'l' && | |
8449 | name[3] == 'e' && | |
8450 | name[4] == 't' && | |
8451 | name[5] == 'e') | |
8452 | { /* delete */ | |
8453 | return KEY_delete; | |
8454 | } | |
8455 | ||
8456 | goto unknown; | |
8457 | ||
8458 | case 'e': | |
8459 | switch (name[1]) | |
8460 | { | |
8461 | case 'l': | |
8462 | if (name[2] == 's' && | |
8463 | name[3] == 'e' && | |
8464 | name[4] == 'i' && | |
8465 | name[5] == 'f') | |
8466 | { /* elseif */ | |
8467 | if(ckWARN_d(WARN_SYNTAX)) | |
8468 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); | |
8469 | } | |
8470 | ||
8471 | goto unknown; | |
8472 | ||
8473 | case 'x': | |
8474 | if (name[2] == 'i' && | |
8475 | name[3] == 's' && | |
8476 | name[4] == 't' && | |
8477 | name[5] == 's') | |
8478 | { /* exists */ | |
8479 | return KEY_exists; | |
8480 | } | |
8481 | ||
8482 | goto unknown; | |
8483 | ||
8484 | default: | |
8485 | goto unknown; | |
8486 | } | |
8487 | ||
8488 | case 'f': | |
8489 | switch (name[1]) | |
8490 | { | |
8491 | case 'i': | |
8492 | if (name[2] == 'l' && | |
8493 | name[3] == 'e' && | |
8494 | name[4] == 'n' && | |
8495 | name[5] == 'o') | |
8496 | { /* fileno */ | |
8497 | return -KEY_fileno; | |
8498 | } | |
8499 | ||
8500 | goto unknown; | |
8501 | ||
8502 | case 'o': | |
8503 | if (name[2] == 'r' && | |
8504 | name[3] == 'm' && | |
8505 | name[4] == 'a' && | |
8506 | name[5] == 't') | |
8507 | { /* format */ | |
8508 | return KEY_format; | |
8509 | } | |
8510 | ||
8511 | goto unknown; | |
8512 | ||
8513 | default: | |
8514 | goto unknown; | |
8515 | } | |
8516 | ||
8517 | case 'g': | |
8518 | if (name[1] == 'm' && | |
8519 | name[2] == 't' && | |
8520 | name[3] == 'i' && | |
8521 | name[4] == 'm' && | |
8522 | name[5] == 'e') | |
8523 | { /* gmtime */ | |
8524 | return -KEY_gmtime; | |
8525 | } | |
8526 | ||
8527 | goto unknown; | |
8528 | ||
8529 | case 'l': | |
8530 | switch (name[1]) | |
8531 | { | |
8532 | case 'e': | |
8533 | if (name[2] == 'n' && | |
8534 | name[3] == 'g' && | |
8535 | name[4] == 't' && | |
8536 | name[5] == 'h') | |
8537 | { /* length */ | |
8538 | return -KEY_length; | |
8539 | } | |
8540 | ||
8541 | goto unknown; | |
8542 | ||
8543 | case 'i': | |
8544 | if (name[2] == 's' && | |
8545 | name[3] == 't' && | |
8546 | name[4] == 'e' && | |
8547 | name[5] == 'n') | |
8548 | { /* listen */ | |
8549 | return -KEY_listen; | |
8550 | } | |
8551 | ||
8552 | goto unknown; | |
8553 | ||
8554 | default: | |
8555 | goto unknown; | |
8556 | } | |
8557 | ||
8558 | case 'm': | |
8559 | if (name[1] == 's' && | |
8560 | name[2] == 'g') | |
8561 | { | |
8562 | switch (name[3]) | |
8563 | { | |
8564 | case 'c': | |
8565 | if (name[4] == 't' && | |
8566 | name[5] == 'l') | |
8567 | { /* msgctl */ | |
8568 | return -KEY_msgctl; | |
8569 | } | |
8570 | ||
8571 | goto unknown; | |
8572 | ||
8573 | case 'g': | |
8574 | if (name[4] == 'e' && | |
8575 | name[5] == 't') | |
8576 | { /* msgget */ | |
8577 | return -KEY_msgget; | |
8578 | } | |
8579 | ||
8580 | goto unknown; | |
8581 | ||
8582 | case 'r': | |
8583 | if (name[4] == 'c' && | |
8584 | name[5] == 'v') | |
8585 | { /* msgrcv */ | |
8586 | return -KEY_msgrcv; | |
8587 | } | |
8588 | ||
8589 | goto unknown; | |
8590 | ||
8591 | case 's': | |
8592 | if (name[4] == 'n' && | |
8593 | name[5] == 'd') | |
8594 | { /* msgsnd */ | |
8595 | return -KEY_msgsnd; | |
8596 | } | |
8597 | ||
8598 | goto unknown; | |
8599 | ||
8600 | default: | |
8601 | goto unknown; | |
8602 | } | |
8603 | } | |
8604 | ||
8605 | goto unknown; | |
8606 | ||
8607 | case 'p': | |
8608 | if (name[1] == 'r' && | |
8609 | name[2] == 'i' && | |
8610 | name[3] == 'n' && | |
8611 | name[4] == 't' && | |
8612 | name[5] == 'f') | |
8613 | { /* printf */ | |
8614 | return KEY_printf; | |
8615 | } | |
8616 | ||
8617 | goto unknown; | |
8618 | ||
8619 | case 'r': | |
8620 | switch (name[1]) | |
8621 | { | |
8622 | case 'e': | |
8623 | switch (name[2]) | |
8624 | { | |
8625 | case 'n': | |
8626 | if (name[3] == 'a' && | |
8627 | name[4] == 'm' && | |
8628 | name[5] == 'e') | |
8629 | { /* rename */ | |
8630 | return -KEY_rename; | |
8631 | } | |
8632 | ||
8633 | goto unknown; | |
8634 | ||
8635 | case 't': | |
8636 | if (name[3] == 'u' && | |
8637 | name[4] == 'r' && | |
8638 | name[5] == 'n') | |
8639 | { /* return */ | |
8640 | return KEY_return; | |
8641 | } | |
8642 | ||
8643 | goto unknown; | |
8644 | ||
8645 | default: | |
8646 | goto unknown; | |
8647 | } | |
8648 | ||
8649 | case 'i': | |
8650 | if (name[2] == 'n' && | |
8651 | name[3] == 'd' && | |
8652 | name[4] == 'e' && | |
8653 | name[5] == 'x') | |
8654 | { /* rindex */ | |
8655 | return -KEY_rindex; | |
8656 | } | |
8657 | ||
8658 | goto unknown; | |
8659 | ||
8660 | default: | |
8661 | goto unknown; | |
8662 | } | |
8663 | ||
8664 | case 's': | |
8665 | switch (name[1]) | |
8666 | { | |
8667 | case 'c': | |
8668 | if (name[2] == 'a' && | |
8669 | name[3] == 'l' && | |
8670 | name[4] == 'a' && | |
8671 | name[5] == 'r') | |
8672 | { /* scalar */ | |
8673 | return KEY_scalar; | |
8674 | } | |
8675 | ||
8676 | goto unknown; | |
8677 | ||
8678 | case 'e': | |
8679 | switch (name[2]) | |
8680 | { | |
8681 | case 'l': | |
8682 | if (name[3] == 'e' && | |
8683 | name[4] == 'c' && | |
8684 | name[5] == 't') | |
8685 | { /* select */ | |
8686 | return -KEY_select; | |
8687 | } | |
8688 | ||
8689 | goto unknown; | |
8690 | ||
8691 | case 'm': | |
8692 | switch (name[3]) | |
8693 | { | |
8694 | case 'c': | |
8695 | if (name[4] == 't' && | |
8696 | name[5] == 'l') | |
8697 | { /* semctl */ | |
8698 | return -KEY_semctl; | |
8699 | } | |
8700 | ||
8701 | goto unknown; | |
8702 | ||
8703 | case 'g': | |
8704 | if (name[4] == 'e' && | |
8705 | name[5] == 't') | |
8706 | { /* semget */ | |
8707 | return -KEY_semget; | |
8708 | } | |
8709 | ||
8710 | goto unknown; | |
8711 | ||
8712 | default: | |
8713 | goto unknown; | |
8714 | } | |
8715 | ||
8716 | default: | |
8717 | goto unknown; | |
8718 | } | |
8719 | ||
8720 | case 'h': | |
8721 | if (name[2] == 'm') | |
8722 | { | |
8723 | switch (name[3]) | |
8724 | { | |
8725 | case 'c': | |
8726 | if (name[4] == 't' && | |
8727 | name[5] == 'l') | |
8728 | { /* shmctl */ | |
8729 | return -KEY_shmctl; | |
8730 | } | |
8731 | ||
8732 | goto unknown; | |
8733 | ||
8734 | case 'g': | |
8735 | if (name[4] == 'e' && | |
8736 | name[5] == 't') | |
8737 | { /* shmget */ | |
8738 | return -KEY_shmget; | |
8739 | } | |
8740 | ||
8741 | goto unknown; | |
8742 | ||
8743 | default: | |
8744 | goto unknown; | |
8745 | } | |
8746 | } | |
8747 | ||
8748 | goto unknown; | |
8749 | ||
8750 | case 'o': | |
8751 | if (name[2] == 'c' && | |
8752 | name[3] == 'k' && | |
8753 | name[4] == 'e' && | |
8754 | name[5] == 't') | |
8755 | { /* socket */ | |
8756 | return -KEY_socket; | |
8757 | } | |
8758 | ||
8759 | goto unknown; | |
8760 | ||
8761 | case 'p': | |
8762 | if (name[2] == 'l' && | |
8763 | name[3] == 'i' && | |
8764 | name[4] == 'c' && | |
8765 | name[5] == 'e') | |
8766 | { /* splice */ | |
8767 | return -KEY_splice; | |
8768 | } | |
8769 | ||
8770 | goto unknown; | |
8771 | ||
8772 | case 'u': | |
8773 | if (name[2] == 'b' && | |
8774 | name[3] == 's' && | |
8775 | name[4] == 't' && | |
8776 | name[5] == 'r') | |
8777 | { /* substr */ | |
8778 | return -KEY_substr; | |
8779 | } | |
8780 | ||
8781 | goto unknown; | |
8782 | ||
8783 | case 'y': | |
8784 | if (name[2] == 's' && | |
8785 | name[3] == 't' && | |
8786 | name[4] == 'e' && | |
8787 | name[5] == 'm') | |
8788 | { /* system */ | |
8789 | return -KEY_system; | |
8790 | } | |
8791 | ||
8792 | goto unknown; | |
8793 | ||
8794 | default: | |
8795 | goto unknown; | |
8796 | } | |
8797 | ||
8798 | case 'u': | |
8799 | if (name[1] == 'n') | |
8800 | { | |
8801 | switch (name[2]) | |
8802 | { | |
8803 | case 'l': | |
8804 | switch (name[3]) | |
8805 | { | |
8806 | case 'e': | |
8807 | if (name[4] == 's' && | |
8808 | name[5] == 's') | |
8809 | { /* unless */ | |
8810 | return KEY_unless; | |
8811 | } | |
8812 | ||
8813 | goto unknown; | |
8814 | ||
8815 | case 'i': | |
8816 | if (name[4] == 'n' && | |
8817 | name[5] == 'k') | |
8818 | { /* unlink */ | |
8819 | return -KEY_unlink; | |
8820 | } | |
8821 | ||
8822 | goto unknown; | |
8823 | ||
8824 | default: | |
8825 | goto unknown; | |
8826 | } | |
8827 | ||
8828 | case 'p': | |
8829 | if (name[3] == 'a' && | |
8830 | name[4] == 'c' && | |
8831 | name[5] == 'k') | |
8832 | { /* unpack */ | |
8833 | return -KEY_unpack; | |
8834 | } | |
8835 | ||
8836 | goto unknown; | |
8837 | ||
8838 | default: | |
8839 | goto unknown; | |
8840 | } | |
8841 | } | |
8842 | ||
8843 | goto unknown; | |
8844 | ||
8845 | case 'v': | |
8846 | if (name[1] == 'a' && | |
8847 | name[2] == 'l' && | |
8848 | name[3] == 'u' && | |
8849 | name[4] == 'e' && | |
8850 | name[5] == 's') | |
8851 | { /* values */ | |
8852 | return -KEY_values; | |
8853 | } | |
8854 | ||
8855 | goto unknown; | |
8856 | ||
8857 | default: | |
8858 | goto unknown; | |
e2e1dd5a | 8859 | } |
4c3bbe0f | 8860 | |
0d863452 | 8861 | case 7: /* 29 tokens of length 7 */ |
4c3bbe0f MHM |
8862 | switch (name[0]) |
8863 | { | |
8864 | case 'D': | |
8865 | if (name[1] == 'E' && | |
8866 | name[2] == 'S' && | |
8867 | name[3] == 'T' && | |
8868 | name[4] == 'R' && | |
8869 | name[5] == 'O' && | |
8870 | name[6] == 'Y') | |
8871 | { /* DESTROY */ | |
8872 | return KEY_DESTROY; | |
8873 | } | |
8874 | ||
8875 | goto unknown; | |
8876 | ||
8877 | case '_': | |
8878 | if (name[1] == '_' && | |
8879 | name[2] == 'E' && | |
8880 | name[3] == 'N' && | |
8881 | name[4] == 'D' && | |
8882 | name[5] == '_' && | |
8883 | name[6] == '_') | |
8884 | { /* __END__ */ | |
8885 | return KEY___END__; | |
8886 | } | |
8887 | ||
8888 | goto unknown; | |
8889 | ||
8890 | case 'b': | |
8891 | if (name[1] == 'i' && | |
8892 | name[2] == 'n' && | |
8893 | name[3] == 'm' && | |
8894 | name[4] == 'o' && | |
8895 | name[5] == 'd' && | |
8896 | name[6] == 'e') | |
8897 | { /* binmode */ | |
8898 | return -KEY_binmode; | |
8899 | } | |
8900 | ||
8901 | goto unknown; | |
8902 | ||
8903 | case 'c': | |
8904 | if (name[1] == 'o' && | |
8905 | name[2] == 'n' && | |
8906 | name[3] == 'n' && | |
8907 | name[4] == 'e' && | |
8908 | name[5] == 'c' && | |
8909 | name[6] == 't') | |
8910 | { /* connect */ | |
8911 | return -KEY_connect; | |
8912 | } | |
8913 | ||
8914 | goto unknown; | |
8915 | ||
8916 | case 'd': | |
8917 | switch (name[1]) | |
8918 | { | |
8919 | case 'b': | |
8920 | if (name[2] == 'm' && | |
8921 | name[3] == 'o' && | |
8922 | name[4] == 'p' && | |
8923 | name[5] == 'e' && | |
8924 | name[6] == 'n') | |
8925 | { /* dbmopen */ | |
8926 | return -KEY_dbmopen; | |
8927 | } | |
8928 | ||
8929 | goto unknown; | |
8930 | ||
8931 | case 'e': | |
0d863452 RH |
8932 | if (name[2] == 'f') |
8933 | { | |
8934 | switch (name[3]) | |
8935 | { | |
8936 | case 'a': | |
8937 | if (name[4] == 'u' && | |
8938 | name[5] == 'l' && | |
8939 | name[6] == 't') | |
8940 | { /* default */ | |
5458a98a | 8941 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_default : 0); |
0d863452 RH |
8942 | } |
8943 | ||
8944 | goto unknown; | |
8945 | ||
8946 | case 'i': | |
8947 | if (name[4] == 'n' && | |
952306ac RGS |
8948 | name[5] == 'e' && |
8949 | name[6] == 'd') | |
8950 | { /* defined */ | |
8951 | return KEY_defined; | |
8952 | } | |
4c3bbe0f | 8953 | |
952306ac | 8954 | goto unknown; |
4c3bbe0f | 8955 | |
952306ac RGS |
8956 | default: |
8957 | goto unknown; | |
8958 | } | |
0d863452 RH |
8959 | } |
8960 | ||
8961 | goto unknown; | |
8962 | ||
8963 | default: | |
8964 | goto unknown; | |
8965 | } | |
4c3bbe0f MHM |
8966 | |
8967 | case 'f': | |
8968 | if (name[1] == 'o' && | |
8969 | name[2] == 'r' && | |
8970 | name[3] == 'e' && | |
8971 | name[4] == 'a' && | |
8972 | name[5] == 'c' && | |
8973 | name[6] == 'h') | |
8974 | { /* foreach */ | |
8975 | return KEY_foreach; | |
8976 | } | |
8977 | ||
8978 | goto unknown; | |
8979 | ||
8980 | case 'g': | |
8981 | if (name[1] == 'e' && | |
8982 | name[2] == 't' && | |
8983 | name[3] == 'p') | |
8984 | { | |
8985 | switch (name[4]) | |
8986 | { | |
8987 | case 'g': | |
8988 | if (name[5] == 'r' && | |
8989 | name[6] == 'p') | |
8990 | { /* getpgrp */ | |
8991 | return -KEY_getpgrp; | |
8992 | } | |
8993 | ||
8994 | goto unknown; | |
8995 | ||
8996 | case 'p': | |
8997 | if (name[5] == 'i' && | |
8998 | name[6] == 'd') | |
8999 | { /* getppid */ | |
9000 | return -KEY_getppid; | |
9001 | } | |
9002 | ||
9003 | goto unknown; | |
9004 | ||
9005 | default: | |
9006 | goto unknown; | |
9007 | } | |
9008 | } | |
9009 | ||
9010 | goto unknown; | |
9011 | ||
9012 | case 'l': | |
9013 | if (name[1] == 'c' && | |
9014 | name[2] == 'f' && | |
9015 | name[3] == 'i' && | |
9016 | name[4] == 'r' && | |
9017 | name[5] == 's' && | |
9018 | name[6] == 't') | |
9019 | { /* lcfirst */ | |
9020 | return -KEY_lcfirst; | |
9021 | } | |
9022 | ||
9023 | goto unknown; | |
9024 | ||
9025 | case 'o': | |
9026 | if (name[1] == 'p' && | |
9027 | name[2] == 'e' && | |
9028 | name[3] == 'n' && | |
9029 | name[4] == 'd' && | |
9030 | name[5] == 'i' && | |
9031 | name[6] == 'r') | |
9032 | { /* opendir */ | |
9033 | return -KEY_opendir; | |
9034 | } | |
9035 | ||
9036 | goto unknown; | |
9037 | ||
9038 | case 'p': | |
9039 | if (name[1] == 'a' && | |
9040 | name[2] == 'c' && | |
9041 | name[3] == 'k' && | |
9042 | name[4] == 'a' && | |
9043 | name[5] == 'g' && | |
9044 | name[6] == 'e') | |
9045 | { /* package */ | |
9046 | return KEY_package; | |
9047 | } | |
9048 | ||
9049 | goto unknown; | |
9050 | ||
9051 | case 'r': | |
9052 | if (name[1] == 'e') | |
9053 | { | |
9054 | switch (name[2]) | |
9055 | { | |
9056 | case 'a': | |
9057 | if (name[3] == 'd' && | |
9058 | name[4] == 'd' && | |
9059 | name[5] == 'i' && | |
9060 | name[6] == 'r') | |
9061 | { /* readdir */ | |
9062 | return -KEY_readdir; | |
9063 | } | |
9064 | ||
9065 | goto unknown; | |
9066 | ||
9067 | case 'q': | |
9068 | if (name[3] == 'u' && | |
9069 | name[4] == 'i' && | |
9070 | name[5] == 'r' && | |
9071 | name[6] == 'e') | |
9072 | { /* require */ | |
9073 | return KEY_require; | |
9074 | } | |
9075 | ||
9076 | goto unknown; | |
9077 | ||
9078 | case 'v': | |
9079 | if (name[3] == 'e' && | |
9080 | name[4] == 'r' && | |
9081 | name[5] == 's' && | |
9082 | name[6] == 'e') | |
9083 | { /* reverse */ | |
9084 | return -KEY_reverse; | |
9085 | } | |
9086 | ||
9087 | goto unknown; | |
9088 | ||
9089 | default: | |
9090 | goto unknown; | |
9091 | } | |
9092 | } | |
9093 | ||
9094 | goto unknown; | |
9095 | ||
9096 | case 's': | |
9097 | switch (name[1]) | |
9098 | { | |
9099 | case 'e': | |
9100 | switch (name[2]) | |
9101 | { | |
9102 | case 'e': | |
9103 | if (name[3] == 'k' && | |
9104 | name[4] == 'd' && | |
9105 | name[5] == 'i' && | |
9106 | name[6] == 'r') | |
9107 | { /* seekdir */ | |
9108 | return -KEY_seekdir; | |
9109 | } | |
9110 | ||
9111 | goto unknown; | |
9112 | ||
9113 | case 't': | |
9114 | if (name[3] == 'p' && | |
9115 | name[4] == 'g' && | |
9116 | name[5] == 'r' && | |
9117 | name[6] == 'p') | |
9118 | { /* setpgrp */ | |
9119 | return -KEY_setpgrp; | |
9120 | } | |
9121 | ||
9122 | goto unknown; | |
9123 | ||
9124 | default: | |
9125 | goto unknown; | |
9126 | } | |
9127 | ||
9128 | case 'h': | |
9129 | if (name[2] == 'm' && | |
9130 | name[3] == 'r' && | |
9131 | name[4] == 'e' && | |
9132 | name[5] == 'a' && | |
9133 | name[6] == 'd') | |
9134 | { /* shmread */ | |
9135 | return -KEY_shmread; | |
9136 | } | |
9137 | ||
9138 | goto unknown; | |
9139 | ||
9140 | case 'p': | |
9141 | if (name[2] == 'r' && | |
9142 | name[3] == 'i' && | |
9143 | name[4] == 'n' && | |
9144 | name[5] == 't' && | |
9145 | name[6] == 'f') | |
9146 | { /* sprintf */ | |
9147 | return -KEY_sprintf; | |
9148 | } | |
9149 | ||
9150 | goto unknown; | |
9151 | ||
9152 | case 'y': | |
9153 | switch (name[2]) | |
9154 | { | |
9155 | case 'm': | |
9156 | if (name[3] == 'l' && | |
9157 | name[4] == 'i' && | |
9158 | name[5] == 'n' && | |
9159 | name[6] == 'k') | |
9160 | { /* symlink */ | |
9161 | return -KEY_symlink; | |
9162 | } | |
9163 | ||
9164 | goto unknown; | |
9165 | ||
9166 | case 's': | |
9167 | switch (name[3]) | |
9168 | { | |
9169 | case 'c': | |
9170 | if (name[4] == 'a' && | |
9171 | name[5] == 'l' && | |
9172 | name[6] == 'l') | |
9173 | { /* syscall */ | |
9174 | return -KEY_syscall; | |
9175 | } | |
9176 | ||
9177 | goto unknown; | |
9178 | ||
9179 | case 'o': | |
9180 | if (name[4] == 'p' && | |
9181 | name[5] == 'e' && | |
9182 | name[6] == 'n') | |
9183 | { /* sysopen */ | |
9184 | return -KEY_sysopen; | |
9185 | } | |
9186 | ||
9187 | goto unknown; | |
9188 | ||
9189 | case 'r': | |
9190 | if (name[4] == 'e' && | |
9191 | name[5] == 'a' && | |
9192 | name[6] == 'd') | |
9193 | { /* sysread */ | |
9194 | return -KEY_sysread; | |
9195 | } | |
9196 | ||
9197 | goto unknown; | |
9198 | ||
9199 | case 's': | |
9200 | if (name[4] == 'e' && | |
9201 | name[5] == 'e' && | |
9202 | name[6] == 'k') | |
9203 | { /* sysseek */ | |
9204 | return -KEY_sysseek; | |
9205 | } | |
9206 | ||
9207 | goto unknown; | |
9208 | ||
9209 | default: | |
9210 | goto unknown; | |
9211 | } | |
9212 | ||
9213 | default: | |
9214 | goto unknown; | |
9215 | } | |
9216 | ||
9217 | default: | |
9218 | goto unknown; | |
9219 | } | |
9220 | ||
9221 | case 't': | |
9222 | if (name[1] == 'e' && | |
9223 | name[2] == 'l' && | |
9224 | name[3] == 'l' && | |
9225 | name[4] == 'd' && | |
9226 | name[5] == 'i' && | |
9227 | name[6] == 'r') | |
9228 | { /* telldir */ | |
9229 | return -KEY_telldir; | |
9230 | } | |
9231 | ||
9232 | goto unknown; | |
9233 | ||
9234 | case 'u': | |
9235 | switch (name[1]) | |
9236 | { | |
9237 | case 'c': | |
9238 | if (name[2] == 'f' && | |
9239 | name[3] == 'i' && | |
9240 | name[4] == 'r' && | |
9241 | name[5] == 's' && | |
9242 | name[6] == 't') | |
9243 | { /* ucfirst */ | |
9244 | return -KEY_ucfirst; | |
9245 | } | |
9246 | ||
9247 | goto unknown; | |
9248 | ||
9249 | case 'n': | |
9250 | if (name[2] == 's' && | |
9251 | name[3] == 'h' && | |
9252 | name[4] == 'i' && | |
9253 | name[5] == 'f' && | |
9254 | name[6] == 't') | |
9255 | { /* unshift */ | |
9256 | return -KEY_unshift; | |
9257 | } | |
9258 | ||
9259 | goto unknown; | |
9260 | ||
9261 | default: | |
9262 | goto unknown; | |
9263 | } | |
9264 | ||
9265 | case 'w': | |
9266 | if (name[1] == 'a' && | |
9267 | name[2] == 'i' && | |
9268 | name[3] == 't' && | |
9269 | name[4] == 'p' && | |
9270 | name[5] == 'i' && | |
9271 | name[6] == 'd') | |
9272 | { /* waitpid */ | |
9273 | return -KEY_waitpid; | |
9274 | } | |
9275 | ||
9276 | goto unknown; | |
9277 | ||
9278 | default: | |
9279 | goto unknown; | |
9280 | } | |
9281 | ||
9282 | case 8: /* 26 tokens of length 8 */ | |
9283 | switch (name[0]) | |
9284 | { | |
9285 | case 'A': | |
9286 | if (name[1] == 'U' && | |
9287 | name[2] == 'T' && | |
9288 | name[3] == 'O' && | |
9289 | name[4] == 'L' && | |
9290 | name[5] == 'O' && | |
9291 | name[6] == 'A' && | |
9292 | name[7] == 'D') | |
9293 | { /* AUTOLOAD */ | |
9294 | return KEY_AUTOLOAD; | |
9295 | } | |
9296 | ||
9297 | goto unknown; | |
9298 | ||
9299 | case '_': | |
9300 | if (name[1] == '_') | |
9301 | { | |
9302 | switch (name[2]) | |
9303 | { | |
9304 | case 'D': | |
9305 | if (name[3] == 'A' && | |
9306 | name[4] == 'T' && | |
9307 | name[5] == 'A' && | |
9308 | name[6] == '_' && | |
9309 | name[7] == '_') | |
9310 | { /* __DATA__ */ | |
9311 | return KEY___DATA__; | |
9312 | } | |
9313 | ||
9314 | goto unknown; | |
9315 | ||
9316 | case 'F': | |
9317 | if (name[3] == 'I' && | |
9318 | name[4] == 'L' && | |
9319 | name[5] == 'E' && | |
9320 | name[6] == '_' && | |
9321 | name[7] == '_') | |
9322 | { /* __FILE__ */ | |
9323 | return -KEY___FILE__; | |
9324 | } | |
9325 | ||
9326 | goto unknown; | |
9327 | ||
9328 | case 'L': | |
9329 | if (name[3] == 'I' && | |
9330 | name[4] == 'N' && | |
9331 | name[5] == 'E' && | |
9332 | name[6] == '_' && | |
9333 | name[7] == '_') | |
9334 | { /* __LINE__ */ | |
9335 | return -KEY___LINE__; | |
9336 | } | |
9337 | ||
9338 | goto unknown; | |
9339 | ||
9340 | default: | |
9341 | goto unknown; | |
9342 | } | |
9343 | } | |
9344 | ||
9345 | goto unknown; | |
9346 | ||
9347 | case 'c': | |
9348 | switch (name[1]) | |
9349 | { | |
9350 | case 'l': | |
9351 | if (name[2] == 'o' && | |
9352 | name[3] == 's' && | |
9353 | name[4] == 'e' && | |
9354 | name[5] == 'd' && | |
9355 | name[6] == 'i' && | |
9356 | name[7] == 'r') | |
9357 | { /* closedir */ | |
9358 | return -KEY_closedir; | |
9359 | } | |
9360 | ||
9361 | goto unknown; | |
9362 | ||
9363 | case 'o': | |
9364 | if (name[2] == 'n' && | |
9365 | name[3] == 't' && | |
9366 | name[4] == 'i' && | |
9367 | name[5] == 'n' && | |
9368 | name[6] == 'u' && | |
9369 | name[7] == 'e') | |
9370 | { /* continue */ | |
9371 | return -KEY_continue; | |
9372 | } | |
9373 | ||
9374 | goto unknown; | |
9375 | ||
9376 | default: | |
9377 | goto unknown; | |
9378 | } | |
9379 | ||
9380 | case 'd': | |
9381 | if (name[1] == 'b' && | |
9382 | name[2] == 'm' && | |
9383 | name[3] == 'c' && | |
9384 | name[4] == 'l' && | |
9385 | name[5] == 'o' && | |
9386 | name[6] == 's' && | |
9387 | name[7] == 'e') | |
9388 | { /* dbmclose */ | |
9389 | return -KEY_dbmclose; | |
9390 | } | |
9391 | ||
9392 | goto unknown; | |
9393 | ||
9394 | case 'e': | |
9395 | if (name[1] == 'n' && | |
9396 | name[2] == 'd') | |
9397 | { | |
9398 | switch (name[3]) | |
9399 | { | |
9400 | case 'g': | |
9401 | if (name[4] == 'r' && | |
9402 | name[5] == 'e' && | |
9403 | name[6] == 'n' && | |
9404 | name[7] == 't') | |
9405 | { /* endgrent */ | |
9406 | return -KEY_endgrent; | |
9407 | } | |
9408 | ||
9409 | goto unknown; | |
9410 | ||
9411 | case 'p': | |
9412 | if (name[4] == 'w' && | |
9413 | name[5] == 'e' && | |
9414 | name[6] == 'n' && | |
9415 | name[7] == 't') | |
9416 | { /* endpwent */ | |
9417 | return -KEY_endpwent; | |
9418 | } | |
9419 | ||
9420 | goto unknown; | |
9421 | ||
9422 | default: | |
9423 | goto unknown; | |
9424 | } | |
9425 | } | |
9426 | ||
9427 | goto unknown; | |
9428 | ||
9429 | case 'f': | |
9430 | if (name[1] == 'o' && | |
9431 | name[2] == 'r' && | |
9432 | name[3] == 'm' && | |
9433 | name[4] == 'l' && | |
9434 | name[5] == 'i' && | |
9435 | name[6] == 'n' && | |
9436 | name[7] == 'e') | |
9437 | { /* formline */ | |
9438 | return -KEY_formline; | |
9439 | } | |
9440 | ||
9441 | goto unknown; | |
9442 | ||
9443 | case 'g': | |
9444 | if (name[1] == 'e' && | |
9445 | name[2] == 't') | |
9446 | { | |
9447 | switch (name[3]) | |
9448 | { | |
9449 | case 'g': | |
9450 | if (name[4] == 'r') | |
9451 | { | |
9452 | switch (name[5]) | |
9453 | { | |
9454 | case 'e': | |
9455 | if (name[6] == 'n' && | |
9456 | name[7] == 't') | |
9457 | { /* getgrent */ | |
9458 | return -KEY_getgrent; | |
9459 | } | |
9460 | ||
9461 | goto unknown; | |
9462 | ||
9463 | case 'g': | |
9464 | if (name[6] == 'i' && | |
9465 | name[7] == 'd') | |
9466 | { /* getgrgid */ | |
9467 | return -KEY_getgrgid; | |
9468 | } | |
9469 | ||
9470 | goto unknown; | |
9471 | ||
9472 | case 'n': | |
9473 | if (name[6] == 'a' && | |
9474 | name[7] == 'm') | |
9475 | { /* getgrnam */ | |
9476 | return -KEY_getgrnam; | |
9477 | } | |
9478 | ||
9479 | goto unknown; | |
9480 | ||
9481 | default: | |
9482 | goto unknown; | |
9483 | } | |
9484 | } | |
9485 | ||
9486 | goto unknown; | |
9487 | ||
9488 | case 'l': | |
9489 | if (name[4] == 'o' && | |
9490 | name[5] == 'g' && | |
9491 | name[6] == 'i' && | |
9492 | name[7] == 'n') | |
9493 | { /* getlogin */ | |
9494 | return -KEY_getlogin; | |
9495 | } | |
9496 | ||
9497 | goto unknown; | |
9498 | ||
9499 | case 'p': | |
9500 | if (name[4] == 'w') | |
9501 | { | |
9502 | switch (name[5]) | |
9503 | { | |
9504 | case 'e': | |
9505 | if (name[6] == 'n' && | |
9506 | name[7] == 't') | |
9507 | { /* getpwent */ | |
9508 | return -KEY_getpwent; | |
9509 | } | |
9510 | ||
9511 | goto unknown; | |
9512 | ||
9513 | case 'n': | |
9514 | if (name[6] == 'a' && | |
9515 | name[7] == 'm') | |
9516 | { /* getpwnam */ | |
9517 | return -KEY_getpwnam; | |
9518 | } | |
9519 | ||
9520 | goto unknown; | |
9521 | ||
9522 | case 'u': | |
9523 | if (name[6] == 'i' && | |
9524 | name[7] == 'd') | |
9525 | { /* getpwuid */ | |
9526 | return -KEY_getpwuid; | |
9527 | } | |
9528 | ||
9529 | goto unknown; | |
9530 | ||
9531 | default: | |
9532 | goto unknown; | |
9533 | } | |
9534 | } | |
9535 | ||
9536 | goto unknown; | |
9537 | ||
9538 | default: | |
9539 | goto unknown; | |
9540 | } | |
9541 | } | |
9542 | ||
9543 | goto unknown; | |
9544 | ||
9545 | case 'r': | |
9546 | if (name[1] == 'e' && | |
9547 | name[2] == 'a' && | |
9548 | name[3] == 'd') | |
9549 | { | |
9550 | switch (name[4]) | |
9551 | { | |
9552 | case 'l': | |
9553 | if (name[5] == 'i' && | |
9554 | name[6] == 'n') | |
9555 | { | |
9556 | switch (name[7]) | |
9557 | { | |
9558 | case 'e': | |
9559 | { /* readline */ | |
9560 | return -KEY_readline; | |
9561 | } | |
9562 | ||
4c3bbe0f MHM |
9563 | case 'k': |
9564 | { /* readlink */ | |
9565 | return -KEY_readlink; | |
9566 | } | |
9567 | ||
4c3bbe0f MHM |
9568 | default: |
9569 | goto unknown; | |
9570 | } | |
9571 | } | |
9572 | ||
9573 | goto unknown; | |
9574 | ||
9575 | case 'p': | |
9576 | if (name[5] == 'i' && | |
9577 | name[6] == 'p' && | |
9578 | name[7] == 'e') | |
9579 | { /* readpipe */ | |
9580 | return -KEY_readpipe; | |
9581 | } | |
9582 | ||
9583 | goto unknown; | |
9584 | ||
9585 | default: | |
9586 | goto unknown; | |
9587 | } | |
9588 | } | |
9589 | ||
9590 | goto unknown; | |
9591 | ||
9592 | case 's': | |
9593 | switch (name[1]) | |
9594 | { | |
9595 | case 'e': | |
9596 | if (name[2] == 't') | |
9597 | { | |
9598 | switch (name[3]) | |
9599 | { | |
9600 | case 'g': | |
9601 | if (name[4] == 'r' && | |
9602 | name[5] == 'e' && | |
9603 | name[6] == 'n' && | |
9604 | name[7] == 't') | |
9605 | { /* setgrent */ | |
9606 | return -KEY_setgrent; | |
9607 | } | |
9608 | ||
9609 | goto unknown; | |
9610 | ||
9611 | case 'p': | |
9612 | if (name[4] == 'w' && | |
9613 | name[5] == 'e' && | |
9614 | name[6] == 'n' && | |
9615 | name[7] == 't') | |
9616 | { /* setpwent */ | |
9617 | return -KEY_setpwent; | |
9618 | } | |
9619 | ||
9620 | goto unknown; | |
9621 | ||
9622 | default: | |
9623 | goto unknown; | |
9624 | } | |
9625 | } | |
9626 | ||
9627 | goto unknown; | |
9628 | ||
9629 | case 'h': | |
9630 | switch (name[2]) | |
9631 | { | |
9632 | case 'm': | |
9633 | if (name[3] == 'w' && | |
9634 | name[4] == 'r' && | |
9635 | name[5] == 'i' && | |
9636 | name[6] == 't' && | |
9637 | name[7] == 'e') | |
9638 | { /* shmwrite */ | |
9639 | return -KEY_shmwrite; | |
9640 | } | |
9641 | ||
9642 | goto unknown; | |
9643 | ||
9644 | case 'u': | |
9645 | if (name[3] == 't' && | |
9646 | name[4] == 'd' && | |
9647 | name[5] == 'o' && | |
9648 | name[6] == 'w' && | |
9649 | name[7] == 'n') | |
9650 | { /* shutdown */ | |
9651 | return -KEY_shutdown; | |
9652 | } | |
9653 | ||
9654 | goto unknown; | |
9655 | ||
9656 | default: | |
9657 | goto unknown; | |
9658 | } | |
9659 | ||
9660 | case 'y': | |
9661 | if (name[2] == 's' && | |
9662 | name[3] == 'w' && | |
9663 | name[4] == 'r' && | |
9664 | name[5] == 'i' && | |
9665 | name[6] == 't' && | |
9666 | name[7] == 'e') | |
9667 | { /* syswrite */ | |
9668 | return -KEY_syswrite; | |
9669 | } | |
9670 | ||
9671 | goto unknown; | |
9672 | ||
9673 | default: | |
9674 | goto unknown; | |
9675 | } | |
9676 | ||
9677 | case 't': | |
9678 | if (name[1] == 'r' && | |
9679 | name[2] == 'u' && | |
9680 | name[3] == 'n' && | |
9681 | name[4] == 'c' && | |
9682 | name[5] == 'a' && | |
9683 | name[6] == 't' && | |
9684 | name[7] == 'e') | |
9685 | { /* truncate */ | |
9686 | return -KEY_truncate; | |
9687 | } | |
9688 | ||
9689 | goto unknown; | |
9690 | ||
9691 | default: | |
9692 | goto unknown; | |
9693 | } | |
9694 | ||
9695 | case 9: /* 8 tokens of length 9 */ | |
9696 | switch (name[0]) | |
9697 | { | |
9698 | case 'e': | |
9699 | if (name[1] == 'n' && | |
9700 | name[2] == 'd' && | |
9701 | name[3] == 'n' && | |
9702 | name[4] == 'e' && | |
9703 | name[5] == 't' && | |
9704 | name[6] == 'e' && | |
9705 | name[7] == 'n' && | |
9706 | name[8] == 't') | |
9707 | { /* endnetent */ | |
9708 | return -KEY_endnetent; | |
9709 | } | |
9710 | ||
9711 | goto unknown; | |
9712 | ||
9713 | case 'g': | |
9714 | if (name[1] == 'e' && | |
9715 | name[2] == 't' && | |
9716 | name[3] == 'n' && | |
9717 | name[4] == 'e' && | |
9718 | name[5] == 't' && | |
9719 | name[6] == 'e' && | |
9720 | name[7] == 'n' && | |
9721 | name[8] == 't') | |
9722 | { /* getnetent */ | |
9723 | return -KEY_getnetent; | |
9724 | } | |
9725 | ||
9726 | goto unknown; | |
9727 | ||
9728 | case 'l': | |
9729 | if (name[1] == 'o' && | |
9730 | name[2] == 'c' && | |
9731 | name[3] == 'a' && | |
9732 | name[4] == 'l' && | |
9733 | name[5] == 't' && | |
9734 | name[6] == 'i' && | |
9735 | name[7] == 'm' && | |
9736 | name[8] == 'e') | |
9737 | { /* localtime */ | |
9738 | return -KEY_localtime; | |
9739 | } | |
9740 | ||
9741 | goto unknown; | |
9742 | ||
9743 | case 'p': | |
9744 | if (name[1] == 'r' && | |
9745 | name[2] == 'o' && | |
9746 | name[3] == 't' && | |
9747 | name[4] == 'o' && | |
9748 | name[5] == 't' && | |
9749 | name[6] == 'y' && | |
9750 | name[7] == 'p' && | |
9751 | name[8] == 'e') | |
9752 | { /* prototype */ | |
9753 | return KEY_prototype; | |
9754 | } | |
9755 | ||
9756 | goto unknown; | |
9757 | ||
9758 | case 'q': | |
9759 | if (name[1] == 'u' && | |
9760 | name[2] == 'o' && | |
9761 | name[3] == 't' && | |
9762 | name[4] == 'e' && | |
9763 | name[5] == 'm' && | |
9764 | name[6] == 'e' && | |
9765 | name[7] == 't' && | |
9766 | name[8] == 'a') | |
9767 | { /* quotemeta */ | |
9768 | return -KEY_quotemeta; | |
9769 | } | |
9770 | ||
9771 | goto unknown; | |
9772 | ||
9773 | case 'r': | |
9774 | if (name[1] == 'e' && | |
9775 | name[2] == 'w' && | |
9776 | name[3] == 'i' && | |
9777 | name[4] == 'n' && | |
9778 | name[5] == 'd' && | |
9779 | name[6] == 'd' && | |
9780 | name[7] == 'i' && | |
9781 | name[8] == 'r') | |
9782 | { /* rewinddir */ | |
9783 | return -KEY_rewinddir; | |
9784 | } | |
9785 | ||
9786 | goto unknown; | |
9787 | ||
9788 | case 's': | |
9789 | if (name[1] == 'e' && | |
9790 | name[2] == 't' && | |
9791 | name[3] == 'n' && | |
9792 | name[4] == 'e' && | |
9793 | name[5] == 't' && | |
9794 | name[6] == 'e' && | |
9795 | name[7] == 'n' && | |
9796 | name[8] == 't') | |
9797 | { /* setnetent */ | |
9798 | return -KEY_setnetent; | |
9799 | } | |
9800 | ||
9801 | goto unknown; | |
9802 | ||
9803 | case 'w': | |
9804 | if (name[1] == 'a' && | |
9805 | name[2] == 'n' && | |
9806 | name[3] == 't' && | |
9807 | name[4] == 'a' && | |
9808 | name[5] == 'r' && | |
9809 | name[6] == 'r' && | |
9810 | name[7] == 'a' && | |
9811 | name[8] == 'y') | |
9812 | { /* wantarray */ | |
9813 | return -KEY_wantarray; | |
9814 | } | |
9815 | ||
9816 | goto unknown; | |
9817 | ||
9818 | default: | |
9819 | goto unknown; | |
9820 | } | |
9821 | ||
9822 | case 10: /* 9 tokens of length 10 */ | |
9823 | switch (name[0]) | |
9824 | { | |
9825 | case 'e': | |
9826 | if (name[1] == 'n' && | |
9827 | name[2] == 'd') | |
9828 | { | |
9829 | switch (name[3]) | |
9830 | { | |
9831 | case 'h': | |
9832 | if (name[4] == 'o' && | |
9833 | name[5] == 's' && | |
9834 | name[6] == 't' && | |
9835 | name[7] == 'e' && | |
9836 | name[8] == 'n' && | |
9837 | name[9] == 't') | |
9838 | { /* endhostent */ | |
9839 | return -KEY_endhostent; | |
9840 | } | |
9841 | ||
9842 | goto unknown; | |
9843 | ||
9844 | case 's': | |
9845 | if (name[4] == 'e' && | |
9846 | name[5] == 'r' && | |
9847 | name[6] == 'v' && | |
9848 | name[7] == 'e' && | |
9849 | name[8] == 'n' && | |
9850 | name[9] == 't') | |
9851 | { /* endservent */ | |
9852 | return -KEY_endservent; | |
9853 | } | |
9854 | ||
9855 | goto unknown; | |
9856 | ||
9857 | default: | |
9858 | goto unknown; | |
9859 | } | |
9860 | } | |
9861 | ||
9862 | goto unknown; | |
9863 | ||
9864 | case 'g': | |
9865 | if (name[1] == 'e' && | |
9866 | name[2] == 't') | |
9867 | { | |
9868 | switch (name[3]) | |
9869 | { | |
9870 | case 'h': | |
9871 | if (name[4] == 'o' && | |
9872 | name[5] == 's' && | |
9873 | name[6] == 't' && | |
9874 | name[7] == 'e' && | |
9875 | name[8] == 'n' && | |
9876 | name[9] == 't') | |
9877 | { /* gethostent */ | |
9878 | return -KEY_gethostent; | |
9879 | } | |
9880 | ||
9881 | goto unknown; | |
9882 | ||
9883 | case 's': | |
9884 | switch (name[4]) | |
9885 | { | |
9886 | case 'e': | |
9887 | if (name[5] == 'r' && | |
9888 | name[6] == 'v' && | |
9889 | name[7] == 'e' && | |
9890 | name[8] == 'n' && | |
9891 | name[9] == 't') | |
9892 | { /* getservent */ | |
9893 | return -KEY_getservent; | |
9894 | } | |
9895 | ||
9896 | goto unknown; | |
9897 | ||
9898 | case 'o': | |
9899 | if (name[5] == 'c' && | |
9900 | name[6] == 'k' && | |
9901 | name[7] == 'o' && | |
9902 | name[8] == 'p' && | |
9903 | name[9] == 't') | |
9904 | { /* getsockopt */ | |
9905 | return -KEY_getsockopt; | |
9906 | } | |
9907 | ||
9908 | goto unknown; | |
9909 | ||
9910 | default: | |
9911 | goto unknown; | |
9912 | } | |
9913 | ||
9914 | default: | |
9915 | goto unknown; | |
9916 | } | |
9917 | } | |
9918 | ||
9919 | goto unknown; | |
9920 | ||
9921 | case 's': | |
9922 | switch (name[1]) | |
9923 | { | |
9924 | case 'e': | |
9925 | if (name[2] == 't') | |
9926 | { | |
9927 | switch (name[3]) | |
9928 | { | |
9929 | case 'h': | |
9930 | if (name[4] == 'o' && | |
9931 | name[5] == 's' && | |
9932 | name[6] == 't' && | |
9933 | name[7] == 'e' && | |
9934 | name[8] == 'n' && | |
9935 | name[9] == 't') | |
9936 | { /* sethostent */ | |
9937 | return -KEY_sethostent; | |
9938 | } | |
9939 | ||
9940 | goto unknown; | |
9941 | ||
9942 | case 's': | |
9943 | switch (name[4]) | |
9944 | { | |
9945 | case 'e': | |
9946 | if (name[5] == 'r' && | |
9947 | name[6] == 'v' && | |
9948 | name[7] == 'e' && | |
9949 | name[8] == 'n' && | |
9950 | name[9] == 't') | |
9951 | { /* setservent */ | |
9952 | return -KEY_setservent; | |
9953 | } | |
9954 | ||
9955 | goto unknown; | |
9956 | ||
9957 | case 'o': | |
9958 | if (name[5] == 'c' && | |
9959 | name[6] == 'k' && | |
9960 | name[7] == 'o' && | |
9961 | name[8] == 'p' && | |
9962 | name[9] == 't') | |
9963 | { /* setsockopt */ | |
9964 | return -KEY_setsockopt; | |
9965 | } | |
9966 | ||
9967 | goto unknown; | |
9968 | ||
9969 | default: | |
9970 | goto unknown; | |
9971 | } | |
9972 | ||
9973 | default: | |
9974 | goto unknown; | |
9975 | } | |
9976 | } | |
9977 | ||
9978 | goto unknown; | |
9979 | ||
9980 | case 'o': | |
9981 | if (name[2] == 'c' && | |
9982 | name[3] == 'k' && | |
9983 | name[4] == 'e' && | |
9984 | name[5] == 't' && | |
9985 | name[6] == 'p' && | |
9986 | name[7] == 'a' && | |
9987 | name[8] == 'i' && | |
9988 | name[9] == 'r') | |
9989 | { /* socketpair */ | |
9990 | return -KEY_socketpair; | |
9991 | } | |
9992 | ||
9993 | goto unknown; | |
9994 | ||
9995 | default: | |
9996 | goto unknown; | |
9997 | } | |
9998 | ||
9999 | default: | |
10000 | goto unknown; | |
e2e1dd5a | 10001 | } |
4c3bbe0f MHM |
10002 | |
10003 | case 11: /* 8 tokens of length 11 */ | |
10004 | switch (name[0]) | |
10005 | { | |
10006 | case '_': | |
10007 | if (name[1] == '_' && | |
10008 | name[2] == 'P' && | |
10009 | name[3] == 'A' && | |
10010 | name[4] == 'C' && | |
10011 | name[5] == 'K' && | |
10012 | name[6] == 'A' && | |
10013 | name[7] == 'G' && | |
10014 | name[8] == 'E' && | |
10015 | name[9] == '_' && | |
10016 | name[10] == '_') | |
10017 | { /* __PACKAGE__ */ | |
10018 | return -KEY___PACKAGE__; | |
10019 | } | |
10020 | ||
10021 | goto unknown; | |
10022 | ||
10023 | case 'e': | |
10024 | if (name[1] == 'n' && | |
10025 | name[2] == 'd' && | |
10026 | name[3] == 'p' && | |
10027 | name[4] == 'r' && | |
10028 | name[5] == 'o' && | |
10029 | name[6] == 't' && | |
10030 | name[7] == 'o' && | |
10031 | name[8] == 'e' && | |
10032 | name[9] == 'n' && | |
10033 | name[10] == 't') | |
10034 | { /* endprotoent */ | |
10035 | return -KEY_endprotoent; | |
10036 | } | |
10037 | ||
10038 | goto unknown; | |
10039 | ||
10040 | case 'g': | |
10041 | if (name[1] == 'e' && | |
10042 | name[2] == 't') | |
10043 | { | |
10044 | switch (name[3]) | |
10045 | { | |
10046 | case 'p': | |
10047 | switch (name[4]) | |
10048 | { | |
10049 | case 'e': | |
10050 | if (name[5] == 'e' && | |
10051 | name[6] == 'r' && | |
10052 | name[7] == 'n' && | |
10053 | name[8] == 'a' && | |
10054 | name[9] == 'm' && | |
10055 | name[10] == 'e') | |
10056 | { /* getpeername */ | |
10057 | return -KEY_getpeername; | |
10058 | } | |
10059 | ||
10060 | goto unknown; | |
10061 | ||
10062 | case 'r': | |
10063 | switch (name[5]) | |
10064 | { | |
10065 | case 'i': | |
10066 | if (name[6] == 'o' && | |
10067 | name[7] == 'r' && | |
10068 | name[8] == 'i' && | |
10069 | name[9] == 't' && | |
10070 | name[10] == 'y') | |
10071 | { /* getpriority */ | |
10072 | return -KEY_getpriority; | |
10073 | } | |
10074 | ||
10075 | goto unknown; | |
10076 | ||
10077 | case 'o': | |
10078 | if (name[6] == 't' && | |
10079 | name[7] == 'o' && | |
10080 | name[8] == 'e' && | |
10081 | name[9] == 'n' && | |
10082 | name[10] == 't') | |
10083 | { /* getprotoent */ | |
10084 | return -KEY_getprotoent; | |
10085 | } | |
10086 | ||
10087 | goto unknown; | |
10088 | ||
10089 | default: | |
10090 | goto unknown; | |
10091 | } | |
10092 | ||
10093 | default: | |
10094 | goto unknown; | |
10095 | } | |
10096 | ||
10097 | case 's': | |
10098 | if (name[4] == 'o' && | |
10099 | name[5] == 'c' && | |
10100 | name[6] == 'k' && | |
10101 | name[7] == 'n' && | |
10102 | name[8] == 'a' && | |
10103 | name[9] == 'm' && | |
10104 | name[10] == 'e') | |
10105 | { /* getsockname */ | |
10106 | return -KEY_getsockname; | |
10107 | } | |
10108 | ||
10109 | goto unknown; | |
10110 | ||
10111 | default: | |
10112 | goto unknown; | |
10113 | } | |
10114 | } | |
10115 | ||
10116 | goto unknown; | |
10117 | ||
10118 | case 's': | |
10119 | if (name[1] == 'e' && | |
10120 | name[2] == 't' && | |
10121 | name[3] == 'p' && | |
10122 | name[4] == 'r') | |
10123 | { | |
10124 | switch (name[5]) | |
10125 | { | |
10126 | case 'i': | |
10127 | if (name[6] == 'o' && | |
10128 | name[7] == 'r' && | |
10129 | name[8] == 'i' && | |
10130 | name[9] == 't' && | |
10131 | name[10] == 'y') | |
10132 | { /* setpriority */ | |
10133 | return -KEY_setpriority; | |
10134 | } | |
10135 | ||
10136 | goto unknown; | |
10137 | ||
10138 | case 'o': | |
10139 | if (name[6] == 't' && | |
10140 | name[7] == 'o' && | |
10141 | name[8] == 'e' && | |
10142 | name[9] == 'n' && | |
10143 | name[10] == 't') | |
10144 | { /* setprotoent */ | |
10145 | return -KEY_setprotoent; | |
10146 | } | |
10147 | ||
10148 | goto unknown; | |
10149 | ||
10150 | default: | |
10151 | goto unknown; | |
10152 | } | |
10153 | } | |
10154 | ||
10155 | goto unknown; | |
10156 | ||
10157 | default: | |
10158 | goto unknown; | |
e2e1dd5a | 10159 | } |
4c3bbe0f MHM |
10160 | |
10161 | case 12: /* 2 tokens of length 12 */ | |
10162 | if (name[0] == 'g' && | |
10163 | name[1] == 'e' && | |
10164 | name[2] == 't' && | |
10165 | name[3] == 'n' && | |
10166 | name[4] == 'e' && | |
10167 | name[5] == 't' && | |
10168 | name[6] == 'b' && | |
10169 | name[7] == 'y') | |
10170 | { | |
10171 | switch (name[8]) | |
10172 | { | |
10173 | case 'a': | |
10174 | if (name[9] == 'd' && | |
10175 | name[10] == 'd' && | |
10176 | name[11] == 'r') | |
10177 | { /* getnetbyaddr */ | |
10178 | return -KEY_getnetbyaddr; | |
10179 | } | |
10180 | ||
10181 | goto unknown; | |
10182 | ||
10183 | case 'n': | |
10184 | if (name[9] == 'a' && | |
10185 | name[10] == 'm' && | |
10186 | name[11] == 'e') | |
10187 | { /* getnetbyname */ | |
10188 | return -KEY_getnetbyname; | |
10189 | } | |
10190 | ||
10191 | goto unknown; | |
10192 | ||
10193 | default: | |
10194 | goto unknown; | |
10195 | } | |
e2e1dd5a | 10196 | } |
4c3bbe0f MHM |
10197 | |
10198 | goto unknown; | |
10199 | ||
10200 | case 13: /* 4 tokens of length 13 */ | |
10201 | if (name[0] == 'g' && | |
10202 | name[1] == 'e' && | |
10203 | name[2] == 't') | |
10204 | { | |
10205 | switch (name[3]) | |
10206 | { | |
10207 | case 'h': | |
10208 | if (name[4] == 'o' && | |
10209 | name[5] == 's' && | |
10210 | name[6] == 't' && | |
10211 | name[7] == 'b' && | |
10212 | name[8] == 'y') | |
10213 | { | |
10214 | switch (name[9]) | |
10215 | { | |
10216 | case 'a': | |
10217 | if (name[10] == 'd' && | |
10218 | name[11] == 'd' && | |
10219 | name[12] == 'r') | |
10220 | { /* gethostbyaddr */ | |
10221 | return -KEY_gethostbyaddr; | |
10222 | } | |
10223 | ||
10224 | goto unknown; | |
10225 | ||
10226 | case 'n': | |
10227 | if (name[10] == 'a' && | |
10228 | name[11] == 'm' && | |
10229 | name[12] == 'e') | |
10230 | { /* gethostbyname */ | |
10231 | return -KEY_gethostbyname; | |
10232 | } | |
10233 | ||
10234 | goto unknown; | |
10235 | ||
10236 | default: | |
10237 | goto unknown; | |
10238 | } | |
10239 | } | |
10240 | ||
10241 | goto unknown; | |
10242 | ||
10243 | case 's': | |
10244 | if (name[4] == 'e' && | |
10245 | name[5] == 'r' && | |
10246 | name[6] == 'v' && | |
10247 | name[7] == 'b' && | |
10248 | name[8] == 'y') | |
10249 | { | |
10250 | switch (name[9]) | |
10251 | { | |
10252 | case 'n': | |
10253 | if (name[10] == 'a' && | |
10254 | name[11] == 'm' && | |
10255 | name[12] == 'e') | |
10256 | { /* getservbyname */ | |
10257 | return -KEY_getservbyname; | |
10258 | } | |
10259 | ||
10260 | goto unknown; | |
10261 | ||
10262 | case 'p': | |
10263 | if (name[10] == 'o' && | |
10264 | name[11] == 'r' && | |
10265 | name[12] == 't') | |
10266 | { /* getservbyport */ | |
10267 | return -KEY_getservbyport; | |
10268 | } | |
10269 | ||
10270 | goto unknown; | |
10271 | ||
10272 | default: | |
10273 | goto unknown; | |
10274 | } | |
10275 | } | |
10276 | ||
10277 | goto unknown; | |
10278 | ||
10279 | default: | |
10280 | goto unknown; | |
10281 | } | |
e2e1dd5a | 10282 | } |
4c3bbe0f MHM |
10283 | |
10284 | goto unknown; | |
10285 | ||
10286 | case 14: /* 1 tokens of length 14 */ | |
10287 | if (name[0] == 'g' && | |
10288 | name[1] == 'e' && | |
10289 | name[2] == 't' && | |
10290 | name[3] == 'p' && | |
10291 | name[4] == 'r' && | |
10292 | name[5] == 'o' && | |
10293 | name[6] == 't' && | |
10294 | name[7] == 'o' && | |
10295 | name[8] == 'b' && | |
10296 | name[9] == 'y' && | |
10297 | name[10] == 'n' && | |
10298 | name[11] == 'a' && | |
10299 | name[12] == 'm' && | |
10300 | name[13] == 'e') | |
10301 | { /* getprotobyname */ | |
10302 | return -KEY_getprotobyname; | |
10303 | } | |
10304 | ||
10305 | goto unknown; | |
10306 | ||
10307 | case 16: /* 1 tokens of length 16 */ | |
10308 | if (name[0] == 'g' && | |
10309 | name[1] == 'e' && | |
10310 | name[2] == 't' && | |
10311 | name[3] == 'p' && | |
10312 | name[4] == 'r' && | |
10313 | name[5] == 'o' && | |
10314 | name[6] == 't' && | |
10315 | name[7] == 'o' && | |
10316 | name[8] == 'b' && | |
10317 | name[9] == 'y' && | |
10318 | name[10] == 'n' && | |
10319 | name[11] == 'u' && | |
10320 | name[12] == 'm' && | |
10321 | name[13] == 'b' && | |
10322 | name[14] == 'e' && | |
10323 | name[15] == 'r') | |
10324 | { /* getprotobynumber */ | |
10325 | return -KEY_getprotobynumber; | |
10326 | } | |
10327 | ||
10328 | goto unknown; | |
10329 | ||
10330 | default: | |
10331 | goto unknown; | |
e2e1dd5a | 10332 | } |
4c3bbe0f MHM |
10333 | |
10334 | unknown: | |
e2e1dd5a | 10335 | return 0; |
a687059c LW |
10336 | } |
10337 | ||
76e3520e | 10338 | STATIC void |
c94115d8 | 10339 | S_checkcomma(pTHX_ const char *s, const char *name, const char *what) |
a687059c | 10340 | { |
97aff369 | 10341 | dVAR; |
2f3197b3 | 10342 | |
d008e5eb | 10343 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
10344 | if (ckWARN(WARN_SYNTAX)) { |
10345 | int level = 1; | |
26ff0806 | 10346 | const char *w; |
d008e5eb GS |
10347 | for (w = s+2; *w && level; w++) { |
10348 | if (*w == '(') | |
10349 | ++level; | |
10350 | else if (*w == ')') | |
10351 | --level; | |
10352 | } | |
888fea98 NC |
10353 | while (isSPACE(*w)) |
10354 | ++w; | |
d008e5eb | 10355 | if (!*w || !strchr(";|})]oaiuw!=", *w)) /* an advisory hack only... */ |
9014280d | 10356 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 10357 | "%s (...) interpreted as function",name); |
d008e5eb | 10358 | } |
2f3197b3 | 10359 | } |
3280af22 | 10360 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 10361 | s++; |
a687059c LW |
10362 | if (*s == '(') |
10363 | s++; | |
3280af22 | 10364 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10365 | s++; |
7e2040f0 | 10366 | if (isIDFIRST_lazy_if(s,UTF)) { |
26ff0806 | 10367 | const char * const w = s++; |
7e2040f0 | 10368 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 10369 | s++; |
3280af22 | 10370 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10371 | s++; |
e929a76b | 10372 | if (*s == ',') { |
c94115d8 | 10373 | GV* gv; |
5458a98a | 10374 | if (keyword(w, s - w, 0)) |
e929a76b | 10375 | return; |
c94115d8 NC |
10376 | |
10377 | gv = gv_fetchpvn_flags(w, s - w, 0, SVt_PVCV); | |
10378 | if (gv && GvCVu(gv)) | |
abbb3198 | 10379 | return; |
cea2e8a9 | 10380 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
10381 | } |
10382 | } | |
10383 | } | |
10384 | ||
423cee85 JH |
10385 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
10386 | Best used as sv=new_constant(..., sv, ...). | |
10387 | If s, pv are NULL, calls subroutine with one argument, | |
10388 | and type is used with error messages only. */ | |
10389 | ||
b3ac6de7 | 10390 | STATIC SV * |
7fc63493 | 10391 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, SV *sv, SV *pv, |
9b0e499b | 10392 | const char *type) |
b3ac6de7 | 10393 | { |
27da23d5 | 10394 | dVAR; dSP; |
890ce7af | 10395 | HV * const table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 10396 | SV *res; |
b3ac6de7 IZ |
10397 | SV **cvp; |
10398 | SV *cv, *typesv; | |
89e33a05 | 10399 | const char *why1 = "", *why2 = "", *why3 = ""; |
4e553d73 | 10400 | |
f0af216f | 10401 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
10402 | SV *msg; |
10403 | ||
10edeb5d JH |
10404 | why2 = (const char *) |
10405 | (strEQ(key,"charnames") | |
10406 | ? "(possibly a missing \"use charnames ...\")" | |
10407 | : ""); | |
4e553d73 | 10408 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
10409 | (type ? type: "undef"), why2); |
10410 | ||
10411 | /* This is convoluted and evil ("goto considered harmful") | |
10412 | * but I do not understand the intricacies of all the different | |
10413 | * failure modes of %^H in here. The goal here is to make | |
10414 | * the most probable error message user-friendly. --jhi */ | |
10415 | ||
10416 | goto msgdone; | |
10417 | ||
423cee85 | 10418 | report: |
4e553d73 | 10419 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 10420 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 10421 | msgdone: |
95a20fc0 | 10422 | yyerror(SvPVX_const(msg)); |
423cee85 JH |
10423 | SvREFCNT_dec(msg); |
10424 | return sv; | |
10425 | } | |
b3ac6de7 IZ |
10426 | cvp = hv_fetch(table, key, strlen(key), FALSE); |
10427 | if (!cvp || !SvOK(*cvp)) { | |
423cee85 JH |
10428 | why1 = "$^H{"; |
10429 | why2 = key; | |
f0af216f | 10430 | why3 = "} is not defined"; |
423cee85 | 10431 | goto report; |
b3ac6de7 IZ |
10432 | } |
10433 | sv_2mortal(sv); /* Parent created it permanently */ | |
10434 | cv = *cvp; | |
423cee85 JH |
10435 | if (!pv && s) |
10436 | pv = sv_2mortal(newSVpvn(s, len)); | |
10437 | if (type && pv) | |
10438 | typesv = sv_2mortal(newSVpv(type, 0)); | |
b3ac6de7 | 10439 | else |
423cee85 | 10440 | typesv = &PL_sv_undef; |
4e553d73 | 10441 | |
e788e7d3 | 10442 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
10443 | ENTER ; |
10444 | SAVETMPS; | |
4e553d73 | 10445 | |
423cee85 | 10446 | PUSHMARK(SP) ; |
a5845cb7 | 10447 | EXTEND(sp, 3); |
423cee85 JH |
10448 | if (pv) |
10449 | PUSHs(pv); | |
b3ac6de7 | 10450 | PUSHs(sv); |
423cee85 JH |
10451 | if (pv) |
10452 | PUSHs(typesv); | |
b3ac6de7 | 10453 | PUTBACK; |
423cee85 | 10454 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 10455 | |
423cee85 | 10456 | SPAGAIN ; |
4e553d73 | 10457 | |
423cee85 | 10458 | /* Check the eval first */ |
9b0e499b | 10459 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
396482e1 | 10460 | sv_catpvs(ERRSV, "Propagated"); |
8b6b16e7 | 10461 | yyerror(SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */ |
e1f15930 | 10462 | (void)POPs; |
b37c2d43 | 10463 | res = SvREFCNT_inc_simple(sv); |
423cee85 JH |
10464 | } |
10465 | else { | |
10466 | res = POPs; | |
b37c2d43 | 10467 | SvREFCNT_inc_simple_void(res); |
423cee85 | 10468 | } |
4e553d73 | 10469 | |
423cee85 JH |
10470 | PUTBACK ; |
10471 | FREETMPS ; | |
10472 | LEAVE ; | |
b3ac6de7 | 10473 | POPSTACK; |
4e553d73 | 10474 | |
b3ac6de7 | 10475 | if (!SvOK(res)) { |
423cee85 JH |
10476 | why1 = "Call to &{$^H{"; |
10477 | why2 = key; | |
f0af216f | 10478 | why3 = "}} did not return a defined value"; |
423cee85 JH |
10479 | sv = res; |
10480 | goto report; | |
9b0e499b | 10481 | } |
423cee85 | 10482 | |
9b0e499b | 10483 | return res; |
b3ac6de7 | 10484 | } |
4e553d73 | 10485 | |
d0a148a6 NC |
10486 | /* Returns a NUL terminated string, with the length of the string written to |
10487 | *slp | |
10488 | */ | |
76e3520e | 10489 | STATIC char * |
cea2e8a9 | 10490 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 | 10491 | { |
97aff369 | 10492 | dVAR; |
463ee0b2 | 10493 | register char *d = dest; |
890ce7af | 10494 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
463ee0b2 | 10495 | for (;;) { |
8903cb82 | 10496 | if (d >= e) |
cea2e8a9 | 10497 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10498 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10499 | *d++ = *s++; |
c35e046a | 10500 | else if (allow_package && (*s == '\'') && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10501 | *d++ = ':'; |
10502 | *d++ = ':'; | |
10503 | s++; | |
10504 | } | |
c35e046a | 10505 | else if (allow_package && (s[0] == ':') && (s[1] == ':') && (s[2] != '$')) { |
463ee0b2 LW |
10506 | *d++ = *s++; |
10507 | *d++ = *s++; | |
10508 | } | |
fd400ab9 | 10509 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10510 | char *t = s + UTF8SKIP(s); |
c35e046a | 10511 | size_t len; |
fd400ab9 | 10512 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 | 10513 | t += UTF8SKIP(t); |
c35e046a AL |
10514 | len = t - s; |
10515 | if (d + len > e) | |
cea2e8a9 | 10516 | Perl_croak(aTHX_ ident_too_long); |
c35e046a AL |
10517 | Copy(s, d, len, char); |
10518 | d += len; | |
a0ed51b3 LW |
10519 | s = t; |
10520 | } | |
463ee0b2 LW |
10521 | else { |
10522 | *d = '\0'; | |
10523 | *slp = d - dest; | |
10524 | return s; | |
e929a76b | 10525 | } |
378cc40b LW |
10526 | } |
10527 | } | |
10528 | ||
76e3520e | 10529 | STATIC char * |
f54cb97a | 10530 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b | 10531 | { |
97aff369 | 10532 | dVAR; |
6136c704 | 10533 | char *bracket = NULL; |
748a9306 | 10534 | char funny = *s++; |
6136c704 AL |
10535 | register char *d = dest; |
10536 | register char * const e = d + destlen + 3; /* two-character token, ending NUL */ | |
378cc40b | 10537 | |
a0d0e21e | 10538 | if (isSPACE(*s)) |
29595ff2 | 10539 | s = PEEKSPACE(s); |
de3bb511 | 10540 | if (isDIGIT(*s)) { |
8903cb82 | 10541 | while (isDIGIT(*s)) { |
10542 | if (d >= e) | |
cea2e8a9 | 10543 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 10544 | *d++ = *s++; |
8903cb82 | 10545 | } |
378cc40b LW |
10546 | } |
10547 | else { | |
463ee0b2 | 10548 | for (;;) { |
8903cb82 | 10549 | if (d >= e) |
cea2e8a9 | 10550 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10551 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10552 | *d++ = *s++; |
7e2040f0 | 10553 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10554 | *d++ = ':'; |
10555 | *d++ = ':'; | |
10556 | s++; | |
10557 | } | |
a0d0e21e | 10558 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
10559 | *d++ = *s++; |
10560 | *d++ = *s++; | |
10561 | } | |
fd400ab9 | 10562 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10563 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 10564 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
10565 | t += UTF8SKIP(t); |
10566 | if (d + (t - s) > e) | |
cea2e8a9 | 10567 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
10568 | Copy(s, d, t - s, char); |
10569 | d += t - s; | |
10570 | s = t; | |
10571 | } | |
463ee0b2 LW |
10572 | else |
10573 | break; | |
10574 | } | |
378cc40b LW |
10575 | } |
10576 | *d = '\0'; | |
10577 | d = dest; | |
79072805 | 10578 | if (*d) { |
3280af22 NIS |
10579 | if (PL_lex_state != LEX_NORMAL) |
10580 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 10581 | return s; |
378cc40b | 10582 | } |
748a9306 | 10583 | if (*s == '$' && s[1] && |
3792a11b | 10584 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 10585 | { |
4810e5ec | 10586 | return s; |
5cd24f17 | 10587 | } |
79072805 LW |
10588 | if (*s == '{') { |
10589 | bracket = s; | |
10590 | s++; | |
10591 | } | |
10592 | else if (ck_uni) | |
10593 | check_uni(); | |
93a17b20 | 10594 | if (s < send) |
79072805 LW |
10595 | *d = *s++; |
10596 | d[1] = '\0'; | |
2b92dfce | 10597 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 10598 | *d = toCTRL(*s); |
10599 | s++; | |
de3bb511 | 10600 | } |
79072805 | 10601 | if (bracket) { |
748a9306 | 10602 | if (isSPACE(s[-1])) { |
fa83b5b6 | 10603 | while (s < send) { |
f54cb97a | 10604 | const char ch = *s++; |
bf4acbe4 | 10605 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 10606 | *d = ch; |
10607 | break; | |
10608 | } | |
10609 | } | |
748a9306 | 10610 | } |
7e2040f0 | 10611 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 10612 | d++; |
a0ed51b3 | 10613 | if (UTF) { |
6136c704 AL |
10614 | char *end = s; |
10615 | while ((end < send && isALNUM_lazy_if(end,UTF)) || *end == ':') { | |
10616 | end += UTF8SKIP(end); | |
10617 | while (end < send && UTF8_IS_CONTINUED(*end) && is_utf8_mark((U8*)end)) | |
10618 | end += UTF8SKIP(end); | |
a0ed51b3 | 10619 | } |
6136c704 AL |
10620 | Copy(s, d, end - s, char); |
10621 | d += end - s; | |
10622 | s = end; | |
a0ed51b3 LW |
10623 | } |
10624 | else { | |
2b92dfce | 10625 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 10626 | *d++ = *s++; |
2b92dfce | 10627 | if (d >= e) |
cea2e8a9 | 10628 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 10629 | } |
79072805 | 10630 | *d = '\0'; |
c35e046a AL |
10631 | while (s < send && SPACE_OR_TAB(*s)) |
10632 | s++; | |
ff68c719 | 10633 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
5458a98a | 10634 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest, 0)) { |
10edeb5d JH |
10635 | const char * const brack = |
10636 | (const char *) | |
10637 | ((*s == '[') ? "[...]" : "{...}"); | |
9014280d | 10638 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 10639 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
10640 | funny, dest, brack, funny, dest, brack); |
10641 | } | |
79072805 | 10642 | bracket++; |
a0be28da | 10643 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
10644 | return s; |
10645 | } | |
4e553d73 NIS |
10646 | } |
10647 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
10648 | * 1999-02-27 mjd-perl-patch@plover.com */ |
10649 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
10650 | && isALNUM(*s)) | |
10651 | { | |
10652 | d++; | |
10653 | while (isALNUM(*s) && d < e) { | |
10654 | *d++ = *s++; | |
10655 | } | |
10656 | if (d >= e) | |
cea2e8a9 | 10657 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 10658 | *d = '\0'; |
79072805 LW |
10659 | } |
10660 | if (*s == '}') { | |
10661 | s++; | |
7df0d042 | 10662 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 10663 | PL_lex_state = LEX_INTERPEND; |
7df0d042 AE |
10664 | PL_expect = XREF; |
10665 | } | |
d008e5eb | 10666 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 10667 | if (ckWARN(WARN_AMBIGUOUS) && |
5458a98a | 10668 | (keyword(dest, d - dest, 0) || get_cv(dest, FALSE))) |
d008e5eb | 10669 | { |
c35e046a AL |
10670 | if (funny == '#') |
10671 | funny = '@'; | |
9014280d | 10672 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
10673 | "Ambiguous use of %c{%s} resolved to %c%s", |
10674 | funny, dest, funny, dest); | |
10675 | } | |
10676 | } | |
79072805 LW |
10677 | } |
10678 | else { | |
10679 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 10680 | *dest = '\0'; |
79072805 LW |
10681 | } |
10682 | } | |
3280af22 NIS |
10683 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
10684 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
10685 | return s; |
10686 | } | |
10687 | ||
cea2e8a9 | 10688 | void |
2b36a5a0 | 10689 | Perl_pmflag(pTHX_ U32* pmfl, int ch) |
a0d0e21e | 10690 | { |
96a5add6 | 10691 | PERL_UNUSED_CONTEXT; |
bbce6d69 | 10692 | if (ch == 'i') |
a0d0e21e | 10693 | *pmfl |= PMf_FOLD; |
a0d0e21e LW |
10694 | else if (ch == 'g') |
10695 | *pmfl |= PMf_GLOBAL; | |
c90c0ff4 | 10696 | else if (ch == 'c') |
10697 | *pmfl |= PMf_CONTINUE; | |
a0d0e21e LW |
10698 | else if (ch == 'o') |
10699 | *pmfl |= PMf_KEEP; | |
10700 | else if (ch == 'm') | |
10701 | *pmfl |= PMf_MULTILINE; | |
10702 | else if (ch == 's') | |
10703 | *pmfl |= PMf_SINGLELINE; | |
10704 | else if (ch == 'x') | |
10705 | *pmfl |= PMf_EXTENDED; | |
10706 | } | |
378cc40b | 10707 | |
76e3520e | 10708 | STATIC char * |
cea2e8a9 | 10709 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 10710 | { |
97aff369 | 10711 | dVAR; |
79072805 | 10712 | PMOP *pm; |
5db06880 | 10713 | char *s = scan_str(start,!!PL_madskills,FALSE); |
10edeb5d JH |
10714 | const char * const valid_flags = |
10715 | (const char *)((type == OP_QR) ? "iomsx" : "iogcmsx"); | |
5db06880 NC |
10716 | #ifdef PERL_MAD |
10717 | char *modstart; | |
10718 | #endif | |
10719 | ||
378cc40b | 10720 | |
25c09cbf | 10721 | if (!s) { |
6136c704 | 10722 | const char * const delimiter = skipspace(start); |
10edeb5d JH |
10723 | Perl_croak(aTHX_ |
10724 | (const char *) | |
10725 | (*delimiter == '?' | |
10726 | ? "Search pattern not terminated or ternary operator parsed as search pattern" | |
10727 | : "Search pattern not terminated" )); | |
25c09cbf | 10728 | } |
bbce6d69 | 10729 | |
8782bef2 | 10730 | pm = (PMOP*)newPMOP(type, 0); |
3280af22 | 10731 | if (PL_multi_open == '?') |
79072805 | 10732 | pm->op_pmflags |= PMf_ONCE; |
5db06880 NC |
10733 | #ifdef PERL_MAD |
10734 | modstart = s; | |
10735 | #endif | |
6136c704 AL |
10736 | while (*s && strchr(valid_flags, *s)) |
10737 | pmflag(&pm->op_pmflags,*s++); | |
5db06880 NC |
10738 | #ifdef PERL_MAD |
10739 | if (PL_madskills && modstart != s) { | |
10740 | SV* tmptoken = newSVpvn(modstart, s - modstart); | |
10741 | append_madprops(newMADPROP('m', MAD_SV, tmptoken, 0), (OP*)pm, 0); | |
10742 | } | |
10743 | #endif | |
4ac733c9 | 10744 | /* issue a warning if /c is specified,but /g is not */ |
041457d9 DM |
10745 | if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL) |
10746 | && ckWARN(WARN_REGEXP)) | |
4ac733c9 | 10747 | { |
0bd48802 | 10748 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless without /g" ); |
4ac733c9 MJD |
10749 | } |
10750 | ||
4633a7c4 | 10751 | pm->op_pmpermflags = pm->op_pmflags; |
bbce6d69 | 10752 | |
3280af22 | 10753 | PL_lex_op = (OP*)pm; |
79072805 | 10754 | yylval.ival = OP_MATCH; |
378cc40b LW |
10755 | return s; |
10756 | } | |
10757 | ||
76e3520e | 10758 | STATIC char * |
cea2e8a9 | 10759 | S_scan_subst(pTHX_ char *start) |
79072805 | 10760 | { |
27da23d5 | 10761 | dVAR; |
a0d0e21e | 10762 | register char *s; |
79072805 | 10763 | register PMOP *pm; |
4fdae800 | 10764 | I32 first_start; |
79072805 | 10765 | I32 es = 0; |
5db06880 NC |
10766 | #ifdef PERL_MAD |
10767 | char *modstart; | |
10768 | #endif | |
79072805 | 10769 | |
79072805 LW |
10770 | yylval.ival = OP_NULL; |
10771 | ||
5db06880 | 10772 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 10773 | |
37fd879b | 10774 | if (!s) |
cea2e8a9 | 10775 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 10776 | |
3280af22 | 10777 | if (s[-1] == PL_multi_open) |
79072805 | 10778 | s--; |
5db06880 NC |
10779 | #ifdef PERL_MAD |
10780 | if (PL_madskills) { | |
cd81e915 NC |
10781 | CURMAD('q', PL_thisopen); |
10782 | CURMAD('_', PL_thiswhite); | |
10783 | CURMAD('E', PL_thisstuff); | |
10784 | CURMAD('Q', PL_thisclose); | |
10785 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
10786 | } |
10787 | #endif | |
79072805 | 10788 | |
3280af22 | 10789 | first_start = PL_multi_start; |
5db06880 | 10790 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 10791 | if (!s) { |
37fd879b | 10792 | if (PL_lex_stuff) { |
3280af22 | 10793 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 10794 | PL_lex_stuff = NULL; |
37fd879b | 10795 | } |
cea2e8a9 | 10796 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 10797 | } |
3280af22 | 10798 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 10799 | |
79072805 | 10800 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
5db06880 NC |
10801 | |
10802 | #ifdef PERL_MAD | |
10803 | if (PL_madskills) { | |
cd81e915 NC |
10804 | CURMAD('z', PL_thisopen); |
10805 | CURMAD('R', PL_thisstuff); | |
10806 | CURMAD('Z', PL_thisclose); | |
5db06880 NC |
10807 | } |
10808 | modstart = s; | |
10809 | #endif | |
10810 | ||
48c036b1 | 10811 | while (*s) { |
a687059c LW |
10812 | if (*s == 'e') { |
10813 | s++; | |
2f3197b3 | 10814 | es++; |
a687059c | 10815 | } |
b3eb6a9b | 10816 | else if (strchr("iogcmsx", *s)) |
a0d0e21e | 10817 | pmflag(&pm->op_pmflags,*s++); |
48c036b1 GS |
10818 | else |
10819 | break; | |
378cc40b | 10820 | } |
79072805 | 10821 | |
5db06880 NC |
10822 | #ifdef PERL_MAD |
10823 | if (PL_madskills) { | |
10824 | if (modstart != s) | |
10825 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
10826 | append_madprops(PL_thismad, (OP*)pm, 0); |
10827 | PL_thismad = 0; | |
5db06880 NC |
10828 | } |
10829 | #endif | |
0bd48802 AL |
10830 | if ((pm->op_pmflags & PMf_CONTINUE) && ckWARN(WARN_REGEXP)) { |
10831 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" ); | |
4ac733c9 MJD |
10832 | } |
10833 | ||
79072805 | 10834 | if (es) { |
6136c704 AL |
10835 | SV * const repl = newSVpvs(""); |
10836 | ||
0244c3a4 GS |
10837 | PL_sublex_info.super_bufptr = s; |
10838 | PL_sublex_info.super_bufend = PL_bufend; | |
10839 | PL_multi_end = 0; | |
79072805 | 10840 | pm->op_pmflags |= PMf_EVAL; |
463ee0b2 | 10841 | while (es-- > 0) |
10edeb5d | 10842 | sv_catpv(repl, (const char *)(es ? "eval " : "do ")); |
6f43d98f | 10843 | sv_catpvs(repl, "{"); |
3280af22 | 10844 | sv_catsv(repl, PL_lex_repl); |
9badc361 RGS |
10845 | if (strchr(SvPVX(PL_lex_repl), '#')) |
10846 | sv_catpvs(repl, "\n"); | |
10847 | sv_catpvs(repl, "}"); | |
25da4f38 | 10848 | SvEVALED_on(repl); |
3280af22 NIS |
10849 | SvREFCNT_dec(PL_lex_repl); |
10850 | PL_lex_repl = repl; | |
378cc40b | 10851 | } |
79072805 | 10852 | |
4633a7c4 | 10853 | pm->op_pmpermflags = pm->op_pmflags; |
3280af22 | 10854 | PL_lex_op = (OP*)pm; |
79072805 | 10855 | yylval.ival = OP_SUBST; |
378cc40b LW |
10856 | return s; |
10857 | } | |
10858 | ||
76e3520e | 10859 | STATIC char * |
cea2e8a9 | 10860 | S_scan_trans(pTHX_ char *start) |
378cc40b | 10861 | { |
97aff369 | 10862 | dVAR; |
a0d0e21e | 10863 | register char* s; |
11343788 | 10864 | OP *o; |
79072805 LW |
10865 | short *tbl; |
10866 | I32 squash; | |
a0ed51b3 | 10867 | I32 del; |
79072805 | 10868 | I32 complement; |
5db06880 NC |
10869 | #ifdef PERL_MAD |
10870 | char *modstart; | |
10871 | #endif | |
79072805 LW |
10872 | |
10873 | yylval.ival = OP_NULL; | |
10874 | ||
5db06880 | 10875 | s = scan_str(start,!!PL_madskills,FALSE); |
37fd879b | 10876 | if (!s) |
cea2e8a9 | 10877 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
5db06880 | 10878 | |
3280af22 | 10879 | if (s[-1] == PL_multi_open) |
2f3197b3 | 10880 | s--; |
5db06880 NC |
10881 | #ifdef PERL_MAD |
10882 | if (PL_madskills) { | |
cd81e915 NC |
10883 | CURMAD('q', PL_thisopen); |
10884 | CURMAD('_', PL_thiswhite); | |
10885 | CURMAD('E', PL_thisstuff); | |
10886 | CURMAD('Q', PL_thisclose); | |
10887 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
10888 | } |
10889 | #endif | |
2f3197b3 | 10890 | |
5db06880 | 10891 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 10892 | if (!s) { |
37fd879b | 10893 | if (PL_lex_stuff) { |
3280af22 | 10894 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 10895 | PL_lex_stuff = NULL; |
37fd879b | 10896 | } |
cea2e8a9 | 10897 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 10898 | } |
5db06880 | 10899 | if (PL_madskills) { |
cd81e915 NC |
10900 | CURMAD('z', PL_thisopen); |
10901 | CURMAD('R', PL_thisstuff); | |
10902 | CURMAD('Z', PL_thisclose); | |
5db06880 | 10903 | } |
79072805 | 10904 | |
a0ed51b3 | 10905 | complement = del = squash = 0; |
5db06880 NC |
10906 | #ifdef PERL_MAD |
10907 | modstart = s; | |
10908 | #endif | |
7a1e2023 NC |
10909 | while (1) { |
10910 | switch (*s) { | |
10911 | case 'c': | |
79072805 | 10912 | complement = OPpTRANS_COMPLEMENT; |
7a1e2023 NC |
10913 | break; |
10914 | case 'd': | |
a0ed51b3 | 10915 | del = OPpTRANS_DELETE; |
7a1e2023 NC |
10916 | break; |
10917 | case 's': | |
79072805 | 10918 | squash = OPpTRANS_SQUASH; |
7a1e2023 NC |
10919 | break; |
10920 | default: | |
10921 | goto no_more; | |
10922 | } | |
395c3793 LW |
10923 | s++; |
10924 | } | |
7a1e2023 | 10925 | no_more: |
8973db79 | 10926 | |
a02a5408 | 10927 | Newx(tbl, complement&&!del?258:256, short); |
8973db79 | 10928 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
59f00321 RGS |
10929 | o->op_private &= ~OPpTRANS_ALL; |
10930 | o->op_private |= del|squash|complement| | |
7948272d NIS |
10931 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| |
10932 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 10933 | |
3280af22 | 10934 | PL_lex_op = o; |
79072805 | 10935 | yylval.ival = OP_TRANS; |
5db06880 NC |
10936 | |
10937 | #ifdef PERL_MAD | |
10938 | if (PL_madskills) { | |
10939 | if (modstart != s) | |
10940 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
10941 | append_madprops(PL_thismad, o, 0); |
10942 | PL_thismad = 0; | |
5db06880 NC |
10943 | } |
10944 | #endif | |
10945 | ||
79072805 LW |
10946 | return s; |
10947 | } | |
10948 | ||
76e3520e | 10949 | STATIC char * |
cea2e8a9 | 10950 | S_scan_heredoc(pTHX_ register char *s) |
79072805 | 10951 | { |
97aff369 | 10952 | dVAR; |
79072805 LW |
10953 | SV *herewas; |
10954 | I32 op_type = OP_SCALAR; | |
10955 | I32 len; | |
10956 | SV *tmpstr; | |
10957 | char term; | |
73d840c0 | 10958 | const char *found_newline; |
79072805 | 10959 | register char *d; |
fc36a67e | 10960 | register char *e; |
4633a7c4 | 10961 | char *peek; |
f54cb97a | 10962 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
5db06880 NC |
10963 | #ifdef PERL_MAD |
10964 | I32 stuffstart = s - SvPVX(PL_linestr); | |
10965 | char *tstart; | |
10966 | ||
cd81e915 | 10967 | PL_realtokenstart = -1; |
5db06880 | 10968 | #endif |
79072805 LW |
10969 | |
10970 | s += 2; | |
3280af22 NIS |
10971 | d = PL_tokenbuf; |
10972 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 10973 | if (!outer) |
79072805 | 10974 | *d++ = '\n'; |
c35e046a AL |
10975 | peek = s; |
10976 | while (SPACE_OR_TAB(*peek)) | |
10977 | peek++; | |
3792a11b | 10978 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 10979 | s = peek; |
79072805 | 10980 | term = *s++; |
3280af22 | 10981 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 10982 | d += len; |
3280af22 | 10983 | if (s < PL_bufend) |
79072805 | 10984 | s++; |
79072805 LW |
10985 | } |
10986 | else { | |
10987 | if (*s == '\\') | |
10988 | s++, term = '\''; | |
10989 | else | |
10990 | term = '"'; | |
7e2040f0 | 10991 | if (!isALNUM_lazy_if(s,UTF)) |
12bcd1a6 | 10992 | deprecate_old("bare << to mean <<\"\""); |
7e2040f0 | 10993 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 10994 | if (d < e) |
10995 | *d++ = *s; | |
10996 | } | |
10997 | } | |
3280af22 | 10998 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 10999 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
11000 | *d++ = '\n'; |
11001 | *d = '\0'; | |
3280af22 | 11002 | len = d - PL_tokenbuf; |
5db06880 NC |
11003 | |
11004 | #ifdef PERL_MAD | |
11005 | if (PL_madskills) { | |
11006 | tstart = PL_tokenbuf + !outer; | |
cd81e915 | 11007 | PL_thisclose = newSVpvn(tstart, len - !outer); |
5db06880 | 11008 | tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 | 11009 | PL_thisopen = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11010 | stuffstart = s - SvPVX(PL_linestr); |
11011 | } | |
11012 | #endif | |
6a27c188 | 11013 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
11014 | d = strchr(s, '\r'); |
11015 | if (d) { | |
b464bac0 | 11016 | char * const olds = s; |
f63a84b2 | 11017 | s = d; |
3280af22 | 11018 | while (s < PL_bufend) { |
f63a84b2 LW |
11019 | if (*s == '\r') { |
11020 | *d++ = '\n'; | |
11021 | if (*++s == '\n') | |
11022 | s++; | |
11023 | } | |
11024 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
11025 | *d++ = *s++; | |
11026 | s++; | |
11027 | } | |
11028 | else | |
11029 | *d++ = *s++; | |
11030 | } | |
11031 | *d = '\0'; | |
3280af22 | 11032 | PL_bufend = d; |
95a20fc0 | 11033 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
11034 | s = olds; |
11035 | } | |
11036 | #endif | |
5db06880 NC |
11037 | #ifdef PERL_MAD |
11038 | found_newline = 0; | |
11039 | #endif | |
10edeb5d | 11040 | if ( outer || !(found_newline = (char*)memchr((void*)s, '\n', PL_bufend - s)) ) { |
73d840c0 AL |
11041 | herewas = newSVpvn(s,PL_bufend-s); |
11042 | } | |
11043 | else { | |
5db06880 NC |
11044 | #ifdef PERL_MAD |
11045 | herewas = newSVpvn(s-1,found_newline-s+1); | |
11046 | #else | |
73d840c0 AL |
11047 | s--; |
11048 | herewas = newSVpvn(s,found_newline-s); | |
5db06880 | 11049 | #endif |
73d840c0 | 11050 | } |
5db06880 NC |
11051 | #ifdef PERL_MAD |
11052 | if (PL_madskills) { | |
11053 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11054 | if (PL_thisstuff) |
11055 | sv_catpvn(PL_thisstuff, tstart, s - tstart); | |
5db06880 | 11056 | else |
cd81e915 | 11057 | PL_thisstuff = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11058 | } |
11059 | #endif | |
79072805 | 11060 | s += SvCUR(herewas); |
748a9306 | 11061 | |
5db06880 NC |
11062 | #ifdef PERL_MAD |
11063 | stuffstart = s - SvPVX(PL_linestr); | |
11064 | ||
11065 | if (found_newline) | |
11066 | s--; | |
11067 | #endif | |
11068 | ||
561b68a9 | 11069 | tmpstr = newSV(79); |
748a9306 LW |
11070 | sv_upgrade(tmpstr, SVt_PVIV); |
11071 | if (term == '\'') { | |
79072805 | 11072 | op_type = OP_CONST; |
45977657 | 11073 | SvIV_set(tmpstr, -1); |
748a9306 LW |
11074 | } |
11075 | else if (term == '`') { | |
79072805 | 11076 | op_type = OP_BACKTICK; |
45977657 | 11077 | SvIV_set(tmpstr, '\\'); |
748a9306 | 11078 | } |
79072805 LW |
11079 | |
11080 | CLINE; | |
57843af0 | 11081 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
11082 | PL_multi_open = PL_multi_close = '<'; |
11083 | term = *PL_tokenbuf; | |
0244c3a4 | 11084 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
6136c704 AL |
11085 | char * const bufptr = PL_sublex_info.super_bufptr; |
11086 | char * const bufend = PL_sublex_info.super_bufend; | |
b464bac0 | 11087 | char * const olds = s - SvCUR(herewas); |
0244c3a4 GS |
11088 | s = strchr(bufptr, '\n'); |
11089 | if (!s) | |
11090 | s = bufend; | |
11091 | d = s; | |
11092 | while (s < bufend && | |
11093 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
11094 | if (*s++ == '\n') | |
57843af0 | 11095 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
11096 | } |
11097 | if (s >= bufend) { | |
eb160463 | 11098 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
11099 | missingterm(PL_tokenbuf); |
11100 | } | |
11101 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
11102 | sv_setpvn(tmpstr,d+1,s-d); | |
11103 | s += len - 1; | |
11104 | sv_catpvn(herewas,s,bufend-s); | |
95a20fc0 | 11105 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
11106 | |
11107 | s = olds; | |
11108 | goto retval; | |
11109 | } | |
11110 | else if (!outer) { | |
79072805 | 11111 | d = s; |
3280af22 NIS |
11112 | while (s < PL_bufend && |
11113 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 11114 | if (*s++ == '\n') |
57843af0 | 11115 | CopLINE_inc(PL_curcop); |
79072805 | 11116 | } |
3280af22 | 11117 | if (s >= PL_bufend) { |
eb160463 | 11118 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11119 | missingterm(PL_tokenbuf); |
79072805 LW |
11120 | } |
11121 | sv_setpvn(tmpstr,d+1,s-d); | |
5db06880 NC |
11122 | #ifdef PERL_MAD |
11123 | if (PL_madskills) { | |
cd81e915 NC |
11124 | if (PL_thisstuff) |
11125 | sv_catpvn(PL_thisstuff, d + 1, s - d); | |
5db06880 | 11126 | else |
cd81e915 | 11127 | PL_thisstuff = newSVpvn(d + 1, s - d); |
5db06880 NC |
11128 | stuffstart = s - SvPVX(PL_linestr); |
11129 | } | |
11130 | #endif | |
79072805 | 11131 | s += len - 1; |
57843af0 | 11132 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 11133 | |
3280af22 NIS |
11134 | sv_catpvn(herewas,s,PL_bufend-s); |
11135 | sv_setsv(PL_linestr,herewas); | |
11136 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
11137 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11138 | PL_last_lop = PL_last_uni = NULL; |
79072805 LW |
11139 | } |
11140 | else | |
11141 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
3280af22 | 11142 | while (s >= PL_bufend) { /* multiple line string? */ |
5db06880 NC |
11143 | #ifdef PERL_MAD |
11144 | if (PL_madskills) { | |
11145 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11146 | if (PL_thisstuff) |
11147 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11148 | else |
cd81e915 | 11149 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11150 | } |
11151 | #endif | |
fd2d0953 | 11152 | if (!outer || |
3280af22 | 11153 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { |
eb160463 | 11154 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11155 | missingterm(PL_tokenbuf); |
79072805 | 11156 | } |
5db06880 NC |
11157 | #ifdef PERL_MAD |
11158 | stuffstart = s - SvPVX(PL_linestr); | |
11159 | #endif | |
57843af0 | 11160 | CopLINE_inc(PL_curcop); |
3280af22 | 11161 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 11162 | PL_last_lop = PL_last_uni = NULL; |
6a27c188 | 11163 | #ifndef PERL_STRICT_CR |
3280af22 | 11164 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
11165 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
11166 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 11167 | { |
3280af22 NIS |
11168 | PL_bufend[-2] = '\n'; |
11169 | PL_bufend--; | |
95a20fc0 | 11170 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 11171 | } |
3280af22 NIS |
11172 | else if (PL_bufend[-1] == '\r') |
11173 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11174 | } |
3280af22 NIS |
11175 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
11176 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11177 | #endif |
3280af22 | 11178 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
561b68a9 | 11179 | SV * const sv = newSV(0); |
79072805 | 11180 | |
93a17b20 | 11181 | sv_upgrade(sv, SVt_PVMG); |
3280af22 | 11182 | sv_setsv(sv,PL_linestr); |
0ac0412a | 11183 | (void)SvIOK_on(sv); |
45977657 | 11184 | SvIV_set(sv, 0); |
36c7798d | 11185 | av_store(CopFILEAVx(PL_curcop), (I32)CopLINE(PL_curcop),sv); |
79072805 | 11186 | } |
3280af22 | 11187 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
95a20fc0 | 11188 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
1de9afcd | 11189 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
11190 | sv_catsv(PL_linestr,herewas); |
11191 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
1de9afcd | 11192 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
11193 | } |
11194 | else { | |
3280af22 NIS |
11195 | s = PL_bufend; |
11196 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
11197 | } |
11198 | } | |
79072805 | 11199 | s++; |
0244c3a4 | 11200 | retval: |
57843af0 | 11201 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 11202 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
1da4ca5f | 11203 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 11204 | } |
8990e307 | 11205 | SvREFCNT_dec(herewas); |
2f31ce75 | 11206 | if (!IN_BYTES) { |
95a20fc0 | 11207 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
2f31ce75 JH |
11208 | SvUTF8_on(tmpstr); |
11209 | else if (PL_encoding) | |
11210 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
11211 | } | |
3280af22 | 11212 | PL_lex_stuff = tmpstr; |
79072805 LW |
11213 | yylval.ival = op_type; |
11214 | return s; | |
11215 | } | |
11216 | ||
02aa26ce NT |
11217 | /* scan_inputsymbol |
11218 | takes: current position in input buffer | |
11219 | returns: new position in input buffer | |
11220 | side-effects: yylval and lex_op are set. | |
11221 | ||
11222 | This code handles: | |
11223 | ||
11224 | <> read from ARGV | |
11225 | <FH> read from filehandle | |
11226 | <pkg::FH> read from package qualified filehandle | |
11227 | <pkg'FH> read from package qualified filehandle | |
11228 | <$fh> read from filehandle in $fh | |
11229 | <*.h> filename glob | |
11230 | ||
11231 | */ | |
11232 | ||
76e3520e | 11233 | STATIC char * |
cea2e8a9 | 11234 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 11235 | { |
97aff369 | 11236 | dVAR; |
02aa26ce | 11237 | register char *s = start; /* current position in buffer */ |
1b420867 | 11238 | char *end; |
79072805 LW |
11239 | I32 len; |
11240 | ||
6136c704 AL |
11241 | char *d = PL_tokenbuf; /* start of temp holding space */ |
11242 | const char * const e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
11243 | ||
1b420867 GS |
11244 | end = strchr(s, '\n'); |
11245 | if (!end) | |
11246 | end = PL_bufend; | |
11247 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
11248 | |
11249 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 11250 | or if it didn't end, or if we see a newline |
02aa26ce NT |
11251 | */ |
11252 | ||
bb7a0f54 | 11253 | if (len >= (I32)sizeof PL_tokenbuf) |
cea2e8a9 | 11254 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 11255 | if (s >= end) |
cea2e8a9 | 11256 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 11257 | |
fc36a67e | 11258 | s++; |
02aa26ce NT |
11259 | |
11260 | /* check for <$fh> | |
11261 | Remember, only scalar variables are interpreted as filehandles by | |
11262 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
11263 | treated as a glob() call. | |
11264 | This code makes use of the fact that except for the $ at the front, | |
11265 | a scalar variable and a filehandle look the same. | |
11266 | */ | |
4633a7c4 | 11267 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
11268 | |
11269 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 11270 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 11271 | d++; |
02aa26ce NT |
11272 | |
11273 | /* If we've tried to read what we allow filehandles to look like, and | |
11274 | there's still text left, then it must be a glob() and not a getline. | |
11275 | Use scan_str to pull out the stuff between the <> and treat it | |
11276 | as nothing more than a string. | |
11277 | */ | |
11278 | ||
3280af22 | 11279 | if (d - PL_tokenbuf != len) { |
79072805 LW |
11280 | yylval.ival = OP_GLOB; |
11281 | set_csh(); | |
5db06880 | 11282 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 11283 | if (!s) |
cea2e8a9 | 11284 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
11285 | return s; |
11286 | } | |
395c3793 | 11287 | else { |
9b3023bc | 11288 | bool readline_overriden = FALSE; |
6136c704 | 11289 | GV *gv_readline; |
9b3023bc | 11290 | GV **gvp; |
02aa26ce | 11291 | /* we're in a filehandle read situation */ |
3280af22 | 11292 | d = PL_tokenbuf; |
02aa26ce NT |
11293 | |
11294 | /* turn <> into <ARGV> */ | |
79072805 | 11295 | if (!len) |
689badd5 | 11296 | Copy("ARGV",d,5,char); |
02aa26ce | 11297 | |
9b3023bc | 11298 | /* Check whether readline() is overriden */ |
fafc274c | 11299 | gv_readline = gv_fetchpvs("readline", GV_NOTQUAL, SVt_PVCV); |
6136c704 | 11300 | if ((gv_readline |
ba979b31 | 11301 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) |
9b3023bc | 11302 | || |
017a3ce5 | 11303 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE)) |
9b3023bc | 11304 | && (gv_readline = *gvp) != (GV*)&PL_sv_undef |
ba979b31 | 11305 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
11306 | readline_overriden = TRUE; |
11307 | ||
02aa26ce NT |
11308 | /* if <$fh>, create the ops to turn the variable into a |
11309 | filehandle | |
11310 | */ | |
79072805 | 11311 | if (*d == '$') { |
02aa26ce NT |
11312 | /* try to find it in the pad for this block, otherwise find |
11313 | add symbol table ops | |
11314 | */ | |
bbd11bfc AL |
11315 | const PADOFFSET tmp = pad_findmy(d); |
11316 | if (tmp != NOT_IN_PAD) { | |
00b1698f | 11317 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
6136c704 AL |
11318 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
11319 | HEK * const stashname = HvNAME_HEK(stash); | |
11320 | SV * const sym = sv_2mortal(newSVhek(stashname)); | |
396482e1 | 11321 | sv_catpvs(sym, "::"); |
f558d5af JH |
11322 | sv_catpv(sym, d+1); |
11323 | d = SvPVX(sym); | |
11324 | goto intro_sym; | |
11325 | } | |
11326 | else { | |
6136c704 | 11327 | OP * const o = newOP(OP_PADSV, 0); |
f558d5af | 11328 | o->op_targ = tmp; |
9b3023bc RGS |
11329 | PL_lex_op = readline_overriden |
11330 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11331 | append_elem(OP_LIST, o, | |
11332 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
11333 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 11334 | } |
a0d0e21e LW |
11335 | } |
11336 | else { | |
f558d5af JH |
11337 | GV *gv; |
11338 | ++d; | |
11339 | intro_sym: | |
11340 | gv = gv_fetchpv(d, | |
11341 | (PL_in_eval | |
11342 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 11343 | : GV_ADDMULTI), |
f558d5af | 11344 | SVt_PV); |
9b3023bc RGS |
11345 | PL_lex_op = readline_overriden |
11346 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11347 | append_elem(OP_LIST, | |
11348 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
11349 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11350 | : (OP*)newUNOP(OP_READLINE, 0, | |
11351 | newUNOP(OP_RV2SV, 0, | |
11352 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 11353 | } |
7c6fadd6 RGS |
11354 | if (!readline_overriden) |
11355 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
f5284f61 | 11356 | /* we created the ops in PL_lex_op, so make yylval.ival a null op */ |
79072805 LW |
11357 | yylval.ival = OP_NULL; |
11358 | } | |
02aa26ce NT |
11359 | |
11360 | /* If it's none of the above, it must be a literal filehandle | |
11361 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 11362 | else { |
6136c704 | 11363 | GV * const gv = gv_fetchpv(d, GV_ADD, SVt_PVIO); |
9b3023bc RGS |
11364 | PL_lex_op = readline_overriden |
11365 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11366 | append_elem(OP_LIST, | |
11367 | newGVOP(OP_GV, 0, gv), | |
11368 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11369 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
79072805 LW |
11370 | yylval.ival = OP_NULL; |
11371 | } | |
11372 | } | |
02aa26ce | 11373 | |
79072805 LW |
11374 | return s; |
11375 | } | |
11376 | ||
02aa26ce NT |
11377 | |
11378 | /* scan_str | |
11379 | takes: start position in buffer | |
09bef843 SB |
11380 | keep_quoted preserve \ on the embedded delimiter(s) |
11381 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
11382 | returns: position to continue reading from buffer |
11383 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
11384 | updates the read buffer. | |
11385 | ||
11386 | This subroutine pulls a string out of the input. It is called for: | |
11387 | q single quotes q(literal text) | |
11388 | ' single quotes 'literal text' | |
11389 | qq double quotes qq(interpolate $here please) | |
11390 | " double quotes "interpolate $here please" | |
11391 | qx backticks qx(/bin/ls -l) | |
11392 | ` backticks `/bin/ls -l` | |
11393 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
11394 | m// regexp match m/this/ | |
11395 | s/// regexp substitute s/this/that/ | |
11396 | tr/// string transliterate tr/this/that/ | |
11397 | y/// string transliterate y/this/that/ | |
11398 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 11399 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
11400 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
11401 | ||
11402 | In most of these cases (all but <>, patterns and transliterate) | |
11403 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
11404 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
11405 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
11406 | calls scan_str(). | |
4e553d73 | 11407 | |
02aa26ce NT |
11408 | It skips whitespace before the string starts, and treats the first |
11409 | character as the delimiter. If the delimiter is one of ([{< then | |
11410 | the corresponding "close" character )]}> is used as the closing | |
11411 | delimiter. It allows quoting of delimiters, and if the string has | |
11412 | balanced delimiters ([{<>}]) it allows nesting. | |
11413 | ||
37fd879b HS |
11414 | On success, the SV with the resulting string is put into lex_stuff or, |
11415 | if that is already non-NULL, into lex_repl. The second case occurs only | |
11416 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
11417 | For convenience, the terminating delimiter character is stuffed into | |
11418 | SvIVX of the SV. | |
02aa26ce NT |
11419 | */ |
11420 | ||
76e3520e | 11421 | STATIC char * |
09bef843 | 11422 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 11423 | { |
97aff369 | 11424 | dVAR; |
02aa26ce | 11425 | SV *sv; /* scalar value: string */ |
d3fcec1f | 11426 | const char *tmps; /* temp string, used for delimiter matching */ |
02aa26ce NT |
11427 | register char *s = start; /* current position in the buffer */ |
11428 | register char term; /* terminating character */ | |
11429 | register char *to; /* current position in the sv's data */ | |
11430 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 11431 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
220e2d4e | 11432 | I32 termcode; /* terminating char. code */ |
89ebb4a3 | 11433 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
220e2d4e IH |
11434 | STRLEN termlen; /* length of terminating string */ |
11435 | char *last = NULL; /* last position for nesting bracket */ | |
5db06880 NC |
11436 | #ifdef PERL_MAD |
11437 | int stuffstart; | |
11438 | char *tstart; | |
11439 | #endif | |
02aa26ce NT |
11440 | |
11441 | /* skip space before the delimiter */ | |
29595ff2 NC |
11442 | if (isSPACE(*s)) { |
11443 | s = PEEKSPACE(s); | |
11444 | } | |
02aa26ce | 11445 | |
5db06880 | 11446 | #ifdef PERL_MAD |
cd81e915 NC |
11447 | if (PL_realtokenstart >= 0) { |
11448 | stuffstart = PL_realtokenstart; | |
11449 | PL_realtokenstart = -1; | |
5db06880 NC |
11450 | } |
11451 | else | |
11452 | stuffstart = start - SvPVX(PL_linestr); | |
11453 | #endif | |
02aa26ce | 11454 | /* mark where we are, in case we need to report errors */ |
79072805 | 11455 | CLINE; |
02aa26ce NT |
11456 | |
11457 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 11458 | term = *s; |
220e2d4e IH |
11459 | if (!UTF) { |
11460 | termcode = termstr[0] = term; | |
11461 | termlen = 1; | |
11462 | } | |
11463 | else { | |
f3b9ce0f | 11464 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
220e2d4e IH |
11465 | Copy(s, termstr, termlen, U8); |
11466 | if (!UTF8_IS_INVARIANT(term)) | |
11467 | has_utf8 = TRUE; | |
11468 | } | |
b1c7b182 | 11469 | |
02aa26ce | 11470 | /* mark where we are */ |
57843af0 | 11471 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 11472 | PL_multi_open = term; |
02aa26ce NT |
11473 | |
11474 | /* find corresponding closing delimiter */ | |
93a17b20 | 11475 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
220e2d4e IH |
11476 | termcode = termstr[0] = term = tmps[5]; |
11477 | ||
3280af22 | 11478 | PL_multi_close = term; |
79072805 | 11479 | |
561b68a9 SH |
11480 | /* create a new SV to hold the contents. 79 is the SV's initial length. |
11481 | What a random number. */ | |
11482 | sv = newSV(79); | |
ed6116ce | 11483 | sv_upgrade(sv, SVt_PVIV); |
45977657 | 11484 | SvIV_set(sv, termcode); |
a0d0e21e | 11485 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
11486 | |
11487 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 11488 | if (keep_delims) |
220e2d4e IH |
11489 | sv_catpvn(sv, s, termlen); |
11490 | s += termlen; | |
5db06880 NC |
11491 | #ifdef PERL_MAD |
11492 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11493 | if (!PL_thisopen && !keep_delims) { |
11494 | PL_thisopen = newSVpvn(tstart, s - tstart); | |
5db06880 NC |
11495 | stuffstart = s - SvPVX(PL_linestr); |
11496 | } | |
11497 | #endif | |
93a17b20 | 11498 | for (;;) { |
220e2d4e IH |
11499 | if (PL_encoding && !UTF) { |
11500 | bool cont = TRUE; | |
11501 | ||
11502 | while (cont) { | |
95a20fc0 | 11503 | int offset = s - SvPVX_const(PL_linestr); |
66a1b24b | 11504 | const bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f3b9ce0f | 11505 | &offset, (char*)termstr, termlen); |
6136c704 AL |
11506 | const char * const ns = SvPVX_const(PL_linestr) + offset; |
11507 | char * const svlast = SvEND(sv) - 1; | |
220e2d4e IH |
11508 | |
11509 | for (; s < ns; s++) { | |
11510 | if (*s == '\n' && !PL_rsfp) | |
11511 | CopLINE_inc(PL_curcop); | |
11512 | } | |
11513 | if (!found) | |
11514 | goto read_more_line; | |
11515 | else { | |
11516 | /* handle quoted delimiters */ | |
52327caf | 11517 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
f54cb97a | 11518 | const char *t; |
95a20fc0 | 11519 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
220e2d4e IH |
11520 | t--; |
11521 | if ((svlast-1 - t) % 2) { | |
11522 | if (!keep_quoted) { | |
11523 | *(svlast-1) = term; | |
11524 | *svlast = '\0'; | |
11525 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11526 | } | |
11527 | continue; | |
11528 | } | |
11529 | } | |
11530 | if (PL_multi_open == PL_multi_close) { | |
11531 | cont = FALSE; | |
11532 | } | |
11533 | else { | |
f54cb97a AL |
11534 | const char *t; |
11535 | char *w; | |
220e2d4e IH |
11536 | if (!last) |
11537 | last = SvPVX(sv); | |
f54cb97a | 11538 | for (t = w = last; t < svlast; w++, t++) { |
220e2d4e IH |
11539 | /* At here, all closes are "was quoted" one, |
11540 | so we don't check PL_multi_close. */ | |
11541 | if (*t == '\\') { | |
11542 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
11543 | t++; | |
11544 | else | |
11545 | *w++ = *t++; | |
11546 | } | |
11547 | else if (*t == PL_multi_open) | |
11548 | brackets++; | |
11549 | ||
11550 | *w = *t; | |
11551 | } | |
11552 | if (w < t) { | |
11553 | *w++ = term; | |
11554 | *w = '\0'; | |
95a20fc0 | 11555 | SvCUR_set(sv, w - SvPVX_const(sv)); |
220e2d4e IH |
11556 | } |
11557 | last = w; | |
11558 | if (--brackets <= 0) | |
11559 | cont = FALSE; | |
11560 | } | |
11561 | } | |
11562 | } | |
11563 | if (!keep_delims) { | |
11564 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11565 | *SvEND(sv) = '\0'; | |
11566 | } | |
11567 | break; | |
11568 | } | |
11569 | ||
02aa26ce | 11570 | /* extend sv if need be */ |
3280af22 | 11571 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 11572 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 11573 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 11574 | |
02aa26ce | 11575 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
11576 | if (PL_multi_open == PL_multi_close) { |
11577 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 11578 | /* embedded newlines increment the current line number */ |
3280af22 | 11579 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11580 | CopLINE_inc(PL_curcop); |
02aa26ce | 11581 | /* handle quoted delimiters */ |
3280af22 | 11582 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 11583 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 11584 | s++; |
02aa26ce | 11585 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
11586 | else |
11587 | *to++ = *s++; | |
11588 | } | |
02aa26ce NT |
11589 | /* terminate when run out of buffer (the for() condition), or |
11590 | have found the terminator */ | |
220e2d4e IH |
11591 | else if (*s == term) { |
11592 | if (termlen == 1) | |
11593 | break; | |
f3b9ce0f | 11594 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
220e2d4e IH |
11595 | break; |
11596 | } | |
63cd0674 | 11597 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11598 | has_utf8 = TRUE; |
93a17b20 LW |
11599 | *to = *s; |
11600 | } | |
11601 | } | |
02aa26ce NT |
11602 | |
11603 | /* if the terminator isn't the same as the start character (e.g., | |
11604 | matched brackets), we have to allow more in the quoting, and | |
11605 | be prepared for nested brackets. | |
11606 | */ | |
93a17b20 | 11607 | else { |
02aa26ce | 11608 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 11609 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 11610 | /* embedded newlines increment the line count */ |
3280af22 | 11611 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11612 | CopLINE_inc(PL_curcop); |
02aa26ce | 11613 | /* backslashes can escape the open or closing characters */ |
3280af22 | 11614 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
11615 | if (!keep_quoted && |
11616 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
11617 | s++; |
11618 | else | |
11619 | *to++ = *s++; | |
11620 | } | |
02aa26ce | 11621 | /* allow nested opens and closes */ |
3280af22 | 11622 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 11623 | break; |
3280af22 | 11624 | else if (*s == PL_multi_open) |
93a17b20 | 11625 | brackets++; |
63cd0674 | 11626 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11627 | has_utf8 = TRUE; |
93a17b20 LW |
11628 | *to = *s; |
11629 | } | |
11630 | } | |
02aa26ce | 11631 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 11632 | *to = '\0'; |
95a20fc0 | 11633 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 11634 | |
02aa26ce NT |
11635 | /* |
11636 | * this next chunk reads more into the buffer if we're not done yet | |
11637 | */ | |
11638 | ||
b1c7b182 GS |
11639 | if (s < PL_bufend) |
11640 | break; /* handle case where we are done yet :-) */ | |
79072805 | 11641 | |
6a27c188 | 11642 | #ifndef PERL_STRICT_CR |
95a20fc0 | 11643 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
11644 | if ((to[-2] == '\r' && to[-1] == '\n') || |
11645 | (to[-2] == '\n' && to[-1] == '\r')) | |
11646 | { | |
f63a84b2 LW |
11647 | to[-2] = '\n'; |
11648 | to--; | |
95a20fc0 | 11649 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
11650 | } |
11651 | else if (to[-1] == '\r') | |
11652 | to[-1] = '\n'; | |
11653 | } | |
95a20fc0 | 11654 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
11655 | to[-1] = '\n'; |
11656 | #endif | |
11657 | ||
220e2d4e | 11658 | read_more_line: |
02aa26ce NT |
11659 | /* if we're out of file, or a read fails, bail and reset the current |
11660 | line marker so we can report where the unterminated string began | |
11661 | */ | |
5db06880 NC |
11662 | #ifdef PERL_MAD |
11663 | if (PL_madskills) { | |
c35e046a | 11664 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 NC |
11665 | if (PL_thisstuff) |
11666 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11667 | else |
cd81e915 | 11668 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11669 | } |
11670 | #endif | |
3280af22 NIS |
11671 | if (!PL_rsfp || |
11672 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { | |
c07a80fd | 11673 | sv_free(sv); |
eb160463 | 11674 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
bd61b366 | 11675 | return NULL; |
79072805 | 11676 | } |
5db06880 NC |
11677 | #ifdef PERL_MAD |
11678 | stuffstart = 0; | |
11679 | #endif | |
02aa26ce | 11680 | /* we read a line, so increment our line counter */ |
57843af0 | 11681 | CopLINE_inc(PL_curcop); |
a0ed51b3 | 11682 | |
02aa26ce | 11683 | /* update debugger info */ |
3280af22 | 11684 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
5f66b61c | 11685 | SV * const line_sv = newSV(0); |
79072805 | 11686 | |
5f66b61c AL |
11687 | sv_upgrade(line_sv, SVt_PVMG); |
11688 | sv_setsv(line_sv,PL_linestr); | |
11689 | (void)SvIOK_on(line_sv); | |
11690 | SvIV_set(line_sv, 0); | |
11691 | av_store(CopFILEAVx(PL_curcop), (I32)CopLINE(PL_curcop), line_sv); | |
395c3793 | 11692 | } |
a0ed51b3 | 11693 | |
3280af22 NIS |
11694 | /* having changed the buffer, we must update PL_bufend */ |
11695 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11696 | PL_last_lop = PL_last_uni = NULL; |
378cc40b | 11697 | } |
4e553d73 | 11698 | |
02aa26ce NT |
11699 | /* at this point, we have successfully read the delimited string */ |
11700 | ||
220e2d4e | 11701 | if (!PL_encoding || UTF) { |
5db06880 NC |
11702 | #ifdef PERL_MAD |
11703 | if (PL_madskills) { | |
c35e046a AL |
11704 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
11705 | const int len = s - start; | |
cd81e915 | 11706 | if (PL_thisstuff) |
c35e046a | 11707 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11708 | else |
c35e046a | 11709 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11710 | if (!PL_thisclose && !keep_delims) |
11711 | PL_thisclose = newSVpvn(s,termlen); | |
5db06880 NC |
11712 | } |
11713 | #endif | |
11714 | ||
220e2d4e IH |
11715 | if (keep_delims) |
11716 | sv_catpvn(sv, s, termlen); | |
11717 | s += termlen; | |
11718 | } | |
5db06880 NC |
11719 | #ifdef PERL_MAD |
11720 | else { | |
11721 | if (PL_madskills) { | |
c35e046a AL |
11722 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
11723 | const int len = s - tstart - termlen; | |
cd81e915 | 11724 | if (PL_thisstuff) |
c35e046a | 11725 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11726 | else |
c35e046a | 11727 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11728 | if (!PL_thisclose && !keep_delims) |
11729 | PL_thisclose = newSVpvn(s - termlen,termlen); | |
5db06880 NC |
11730 | } |
11731 | } | |
11732 | #endif | |
220e2d4e | 11733 | if (has_utf8 || PL_encoding) |
b1c7b182 | 11734 | SvUTF8_on(sv); |
d0063567 | 11735 | |
57843af0 | 11736 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
11737 | |
11738 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
11739 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
11740 | SvLEN_set(sv, SvCUR(sv) + 1); | |
b7e9a5c2 | 11741 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 11742 | } |
02aa26ce NT |
11743 | |
11744 | /* decide whether this is the first or second quoted string we've read | |
11745 | for this op | |
11746 | */ | |
4e553d73 | 11747 | |
3280af22 NIS |
11748 | if (PL_lex_stuff) |
11749 | PL_lex_repl = sv; | |
79072805 | 11750 | else |
3280af22 | 11751 | PL_lex_stuff = sv; |
378cc40b LW |
11752 | return s; |
11753 | } | |
11754 | ||
02aa26ce NT |
11755 | /* |
11756 | scan_num | |
11757 | takes: pointer to position in buffer | |
11758 | returns: pointer to new position in buffer | |
11759 | side-effects: builds ops for the constant in yylval.op | |
11760 | ||
11761 | Read a number in any of the formats that Perl accepts: | |
11762 | ||
7fd134d9 JH |
11763 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
11764 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
11765 | 0b[01](_?[01])* |
11766 | 0[0-7](_?[0-7])* | |
11767 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 11768 | |
3280af22 | 11769 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
11770 | thing it reads. |
11771 | ||
11772 | If it reads a number without a decimal point or an exponent, it will | |
11773 | try converting the number to an integer and see if it can do so | |
11774 | without loss of precision. | |
11775 | */ | |
4e553d73 | 11776 | |
378cc40b | 11777 | char * |
bfed75c6 | 11778 | Perl_scan_num(pTHX_ const char *start, YYSTYPE* lvalp) |
378cc40b | 11779 | { |
97aff369 | 11780 | dVAR; |
bfed75c6 | 11781 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
11782 | register char *d; /* destination in temp buffer */ |
11783 | register char *e; /* end of temp buffer */ | |
86554af2 | 11784 | NV nv; /* number read, as a double */ |
a0714e2c | 11785 | SV *sv = NULL; /* place to put the converted number */ |
a86a20aa | 11786 | bool floatit; /* boolean: int or float? */ |
cbbf8932 | 11787 | const char *lastub = NULL; /* position of last underbar */ |
bfed75c6 | 11788 | static char const number_too_long[] = "Number too long"; |
378cc40b | 11789 | |
02aa26ce NT |
11790 | /* We use the first character to decide what type of number this is */ |
11791 | ||
378cc40b | 11792 | switch (*s) { |
79072805 | 11793 | default: |
cea2e8a9 | 11794 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 11795 | |
02aa26ce | 11796 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 11797 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
11798 | case '0': |
11799 | { | |
02aa26ce NT |
11800 | /* variables: |
11801 | u holds the "number so far" | |
4f19785b WSI |
11802 | shift the power of 2 of the base |
11803 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
11804 | overflowed was the number more than we can hold? |
11805 | ||
11806 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
11807 | we in octal/hex/binary?" indicator to disallow hex characters |
11808 | when in octal mode. | |
02aa26ce | 11809 | */ |
9e24b6e2 JH |
11810 | NV n = 0.0; |
11811 | UV u = 0; | |
79072805 | 11812 | I32 shift; |
9e24b6e2 | 11813 | bool overflowed = FALSE; |
61f33854 | 11814 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
27da23d5 JH |
11815 | static const NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
11816 | static const char* const bases[5] = | |
11817 | { "", "binary", "", "octal", "hexadecimal" }; | |
11818 | static const char* const Bases[5] = | |
11819 | { "", "Binary", "", "Octal", "Hexadecimal" }; | |
11820 | static const char* const maxima[5] = | |
11821 | { "", | |
11822 | "0b11111111111111111111111111111111", | |
11823 | "", | |
11824 | "037777777777", | |
11825 | "0xffffffff" }; | |
bfed75c6 | 11826 | const char *base, *Base, *max; |
378cc40b | 11827 | |
02aa26ce | 11828 | /* check for hex */ |
378cc40b LW |
11829 | if (s[1] == 'x') { |
11830 | shift = 4; | |
11831 | s += 2; | |
61f33854 | 11832 | just_zero = FALSE; |
4f19785b WSI |
11833 | } else if (s[1] == 'b') { |
11834 | shift = 1; | |
11835 | s += 2; | |
61f33854 | 11836 | just_zero = FALSE; |
378cc40b | 11837 | } |
02aa26ce | 11838 | /* check for a decimal in disguise */ |
b78218b7 | 11839 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 11840 | goto decimal; |
02aa26ce | 11841 | /* so it must be octal */ |
928753ea | 11842 | else { |
378cc40b | 11843 | shift = 3; |
928753ea JH |
11844 | s++; |
11845 | } | |
11846 | ||
11847 | if (*s == '_') { | |
11848 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11849 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11850 | "Misplaced _ in number"); |
11851 | lastub = s++; | |
11852 | } | |
9e24b6e2 JH |
11853 | |
11854 | base = bases[shift]; | |
11855 | Base = Bases[shift]; | |
11856 | max = maxima[shift]; | |
02aa26ce | 11857 | |
4f19785b | 11858 | /* read the rest of the number */ |
378cc40b | 11859 | for (;;) { |
9e24b6e2 | 11860 | /* x is used in the overflow test, |
893fe2c2 | 11861 | b is the digit we're adding on. */ |
9e24b6e2 | 11862 | UV x, b; |
55497cff | 11863 | |
378cc40b | 11864 | switch (*s) { |
02aa26ce NT |
11865 | |
11866 | /* if we don't mention it, we're done */ | |
378cc40b LW |
11867 | default: |
11868 | goto out; | |
02aa26ce | 11869 | |
928753ea | 11870 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 11871 | case '_': |
041457d9 | 11872 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 11873 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11874 | "Misplaced _ in number"); |
11875 | lastub = s++; | |
de3bb511 | 11876 | break; |
02aa26ce NT |
11877 | |
11878 | /* 8 and 9 are not octal */ | |
378cc40b | 11879 | case '8': case '9': |
4f19785b | 11880 | if (shift == 3) |
cea2e8a9 | 11881 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 11882 | /* FALL THROUGH */ |
02aa26ce NT |
11883 | |
11884 | /* octal digits */ | |
4f19785b | 11885 | case '2': case '3': case '4': |
378cc40b | 11886 | case '5': case '6': case '7': |
4f19785b | 11887 | if (shift == 1) |
cea2e8a9 | 11888 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
11889 | /* FALL THROUGH */ |
11890 | ||
11891 | case '0': case '1': | |
02aa26ce | 11892 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 11893 | goto digit; |
02aa26ce NT |
11894 | |
11895 | /* hex digits */ | |
378cc40b LW |
11896 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
11897 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 11898 | /* make sure they said 0x */ |
378cc40b LW |
11899 | if (shift != 4) |
11900 | goto out; | |
55497cff | 11901 | b = (*s++ & 7) + 9; |
02aa26ce NT |
11902 | |
11903 | /* Prepare to put the digit we have onto the end | |
11904 | of the number so far. We check for overflows. | |
11905 | */ | |
11906 | ||
55497cff | 11907 | digit: |
61f33854 | 11908 | just_zero = FALSE; |
9e24b6e2 JH |
11909 | if (!overflowed) { |
11910 | x = u << shift; /* make room for the digit */ | |
11911 | ||
11912 | if ((x >> shift) != u | |
11913 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
11914 | overflowed = TRUE; |
11915 | n = (NV) u; | |
767a6a26 | 11916 | if (ckWARN_d(WARN_OVERFLOW)) |
9014280d | 11917 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), |
9e24b6e2 JH |
11918 | "Integer overflow in %s number", |
11919 | base); | |
11920 | } else | |
11921 | u = x | b; /* add the digit to the end */ | |
11922 | } | |
11923 | if (overflowed) { | |
11924 | n *= nvshift[shift]; | |
11925 | /* If an NV has not enough bits in its | |
11926 | * mantissa to represent an UV this summing of | |
11927 | * small low-order numbers is a waste of time | |
11928 | * (because the NV cannot preserve the | |
11929 | * low-order bits anyway): we could just | |
11930 | * remember when did we overflow and in the | |
11931 | * end just multiply n by the right | |
11932 | * amount. */ | |
11933 | n += (NV) b; | |
55497cff | 11934 | } |
378cc40b LW |
11935 | break; |
11936 | } | |
11937 | } | |
02aa26ce NT |
11938 | |
11939 | /* if we get here, we had success: make a scalar value from | |
11940 | the number. | |
11941 | */ | |
378cc40b | 11942 | out: |
928753ea JH |
11943 | |
11944 | /* final misplaced underbar check */ | |
11945 | if (s[-1] == '_') { | |
11946 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11947 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
11948 | } |
11949 | ||
561b68a9 | 11950 | sv = newSV(0); |
9e24b6e2 | 11951 | if (overflowed) { |
041457d9 | 11952 | if (n > 4294967295.0 && ckWARN(WARN_PORTABLE)) |
9014280d | 11953 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
11954 | "%s number > %s non-portable", |
11955 | Base, max); | |
11956 | sv_setnv(sv, n); | |
11957 | } | |
11958 | else { | |
15041a67 | 11959 | #if UVSIZE > 4 |
041457d9 | 11960 | if (u > 0xffffffff && ckWARN(WARN_PORTABLE)) |
9014280d | 11961 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
11962 | "%s number > %s non-portable", |
11963 | Base, max); | |
2cc4c2dc | 11964 | #endif |
9e24b6e2 JH |
11965 | sv_setuv(sv, u); |
11966 | } | |
61f33854 | 11967 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
bfed75c6 | 11968 | sv = new_constant(start, s - start, "integer", |
a0714e2c | 11969 | sv, NULL, NULL); |
61f33854 | 11970 | else if (PL_hints & HINT_NEW_BINARY) |
a0714e2c | 11971 | sv = new_constant(start, s - start, "binary", sv, NULL, NULL); |
378cc40b LW |
11972 | } |
11973 | break; | |
02aa26ce NT |
11974 | |
11975 | /* | |
11976 | handle decimal numbers. | |
11977 | we're also sent here when we read a 0 as the first digit | |
11978 | */ | |
378cc40b LW |
11979 | case '1': case '2': case '3': case '4': case '5': |
11980 | case '6': case '7': case '8': case '9': case '.': | |
11981 | decimal: | |
3280af22 NIS |
11982 | d = PL_tokenbuf; |
11983 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 11984 | floatit = FALSE; |
02aa26ce NT |
11985 | |
11986 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 11987 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 11988 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
11989 | if -w is on |
11990 | */ | |
93a17b20 | 11991 | if (*s == '_') { |
041457d9 | 11992 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 11993 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11994 | "Misplaced _ in number"); |
11995 | lastub = s++; | |
93a17b20 | 11996 | } |
fc36a67e | 11997 | else { |
02aa26ce | 11998 | /* check for end of fixed-length buffer */ |
fc36a67e | 11999 | if (d >= e) |
cea2e8a9 | 12000 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 12001 | /* if we're ok, copy the character */ |
378cc40b | 12002 | *d++ = *s++; |
fc36a67e | 12003 | } |
378cc40b | 12004 | } |
02aa26ce NT |
12005 | |
12006 | /* final misplaced underbar check */ | |
928753ea | 12007 | if (lastub && s == lastub + 1) { |
d008e5eb | 12008 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 12009 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 12010 | } |
02aa26ce NT |
12011 | |
12012 | /* read a decimal portion if there is one. avoid | |
12013 | 3..5 being interpreted as the number 3. followed | |
12014 | by .5 | |
12015 | */ | |
2f3197b3 | 12016 | if (*s == '.' && s[1] != '.') { |
79072805 | 12017 | floatit = TRUE; |
378cc40b | 12018 | *d++ = *s++; |
02aa26ce | 12019 | |
928753ea JH |
12020 | if (*s == '_') { |
12021 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12022 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12023 | "Misplaced _ in number"); |
12024 | lastub = s; | |
12025 | } | |
12026 | ||
12027 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 12028 | */ |
fc36a67e | 12029 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 12030 | /* fixed length buffer check */ |
fc36a67e | 12031 | if (d >= e) |
cea2e8a9 | 12032 | Perl_croak(aTHX_ number_too_long); |
928753ea | 12033 | if (*s == '_') { |
041457d9 | 12034 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12035 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12036 | "Misplaced _ in number"); |
12037 | lastub = s; | |
12038 | } | |
12039 | else | |
fc36a67e | 12040 | *d++ = *s; |
378cc40b | 12041 | } |
928753ea JH |
12042 | /* fractional part ending in underbar? */ |
12043 | if (s[-1] == '_') { | |
12044 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12045 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12046 | "Misplaced _ in number"); |
12047 | } | |
dd629d5b GS |
12048 | if (*s == '.' && isDIGIT(s[1])) { |
12049 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 12050 | s = start; |
dd629d5b GS |
12051 | goto vstring; |
12052 | } | |
378cc40b | 12053 | } |
02aa26ce NT |
12054 | |
12055 | /* read exponent part, if present */ | |
3792a11b | 12056 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
12057 | floatit = TRUE; |
12058 | s++; | |
02aa26ce NT |
12059 | |
12060 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 12061 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 12062 | |
7fd134d9 JH |
12063 | /* stray preinitial _ */ |
12064 | if (*s == '_') { | |
12065 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12066 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12067 | "Misplaced _ in number"); |
12068 | lastub = s++; | |
12069 | } | |
12070 | ||
02aa26ce | 12071 | /* allow positive or negative exponent */ |
378cc40b LW |
12072 | if (*s == '+' || *s == '-') |
12073 | *d++ = *s++; | |
02aa26ce | 12074 | |
7fd134d9 JH |
12075 | /* stray initial _ */ |
12076 | if (*s == '_') { | |
12077 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12078 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12079 | "Misplaced _ in number"); |
12080 | lastub = s++; | |
12081 | } | |
12082 | ||
7fd134d9 JH |
12083 | /* read digits of exponent */ |
12084 | while (isDIGIT(*s) || *s == '_') { | |
12085 | if (isDIGIT(*s)) { | |
12086 | if (d >= e) | |
12087 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 12088 | *d++ = *s++; |
7fd134d9 JH |
12089 | } |
12090 | else { | |
041457d9 DM |
12091 | if (((lastub && s == lastub + 1) || |
12092 | (!isDIGIT(s[1]) && s[1] != '_')) | |
12093 | && ckWARN(WARN_SYNTAX)) | |
9014280d | 12094 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 | 12095 | "Misplaced _ in number"); |
b3b48e3e | 12096 | lastub = s++; |
7fd134d9 | 12097 | } |
7fd134d9 | 12098 | } |
378cc40b | 12099 | } |
02aa26ce | 12100 | |
02aa26ce NT |
12101 | |
12102 | /* make an sv from the string */ | |
561b68a9 | 12103 | sv = newSV(0); |
097ee67d | 12104 | |
0b7fceb9 | 12105 | /* |
58bb9ec3 NC |
12106 | We try to do an integer conversion first if no characters |
12107 | indicating "float" have been found. | |
0b7fceb9 MU |
12108 | */ |
12109 | ||
12110 | if (!floatit) { | |
58bb9ec3 | 12111 | UV uv; |
6136c704 | 12112 | const int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); |
58bb9ec3 NC |
12113 | |
12114 | if (flags == IS_NUMBER_IN_UV) { | |
12115 | if (uv <= IV_MAX) | |
86554af2 | 12116 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 12117 | else |
c239479b | 12118 | sv_setuv(sv, uv); |
58bb9ec3 NC |
12119 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
12120 | if (uv <= (UV) IV_MIN) | |
12121 | sv_setiv(sv, -(IV)uv); | |
12122 | else | |
12123 | floatit = TRUE; | |
12124 | } else | |
12125 | floatit = TRUE; | |
12126 | } | |
0b7fceb9 | 12127 | if (floatit) { |
58bb9ec3 NC |
12128 | /* terminate the string */ |
12129 | *d = '\0'; | |
86554af2 JH |
12130 | nv = Atof(PL_tokenbuf); |
12131 | sv_setnv(sv, nv); | |
12132 | } | |
86554af2 | 12133 | |
b8403495 JH |
12134 | if ( floatit ? (PL_hints & HINT_NEW_FLOAT) : |
12135 | (PL_hints & HINT_NEW_INTEGER) ) | |
10edeb5d JH |
12136 | sv = new_constant(PL_tokenbuf, |
12137 | d - PL_tokenbuf, | |
12138 | (const char *) | |
b8403495 | 12139 | (floatit ? "float" : "integer"), |
a0714e2c | 12140 | sv, NULL, NULL); |
378cc40b | 12141 | break; |
0b7fceb9 | 12142 | |
e312add1 | 12143 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 12144 | case 'v': |
dd629d5b | 12145 | vstring: |
561b68a9 | 12146 | sv = newSV(5); /* preallocate storage space */ |
b0f01acb | 12147 | s = scan_vstring(s,sv); |
a7cb1f99 | 12148 | break; |
79072805 | 12149 | } |
a687059c | 12150 | |
02aa26ce NT |
12151 | /* make the op for the constant and return */ |
12152 | ||
a86a20aa | 12153 | if (sv) |
b73d6f50 | 12154 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 12155 | else |
5f66b61c | 12156 | lvalp->opval = NULL; |
a687059c | 12157 | |
73d840c0 | 12158 | return (char *)s; |
378cc40b LW |
12159 | } |
12160 | ||
76e3520e | 12161 | STATIC char * |
cea2e8a9 | 12162 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 12163 | { |
97aff369 | 12164 | dVAR; |
79072805 | 12165 | register char *eol; |
378cc40b | 12166 | register char *t; |
6136c704 | 12167 | SV * const stuff = newSVpvs(""); |
79072805 | 12168 | bool needargs = FALSE; |
c5ee2135 | 12169 | bool eofmt = FALSE; |
5db06880 NC |
12170 | #ifdef PERL_MAD |
12171 | char *tokenstart = s; | |
12172 | SV* savewhite; | |
12173 | ||
12174 | if (PL_madskills) { | |
cd81e915 NC |
12175 | savewhite = PL_thiswhite; |
12176 | PL_thiswhite = 0; | |
5db06880 NC |
12177 | } |
12178 | #endif | |
378cc40b | 12179 | |
79072805 | 12180 | while (!needargs) { |
a1b95068 | 12181 | if (*s == '.') { |
c35e046a | 12182 | t = s+1; |
51882d45 | 12183 | #ifdef PERL_STRICT_CR |
c35e046a AL |
12184 | while (SPACE_OR_TAB(*t)) |
12185 | t++; | |
51882d45 | 12186 | #else |
c35e046a AL |
12187 | while (SPACE_OR_TAB(*t) || *t == '\r') |
12188 | t++; | |
51882d45 | 12189 | #endif |
c5ee2135 WL |
12190 | if (*t == '\n' || t == PL_bufend) { |
12191 | eofmt = TRUE; | |
79072805 | 12192 | break; |
c5ee2135 | 12193 | } |
79072805 | 12194 | } |
3280af22 | 12195 | if (PL_in_eval && !PL_rsfp) { |
07409e01 | 12196 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 12197 | if (!eol++) |
3280af22 | 12198 | eol = PL_bufend; |
0f85fab0 LW |
12199 | } |
12200 | else | |
3280af22 | 12201 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 12202 | if (*s != '#') { |
a0d0e21e LW |
12203 | for (t = s; t < eol; t++) { |
12204 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
12205 | needargs = FALSE; | |
12206 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 12207 | } |
a0d0e21e LW |
12208 | if (*t == '@' || *t == '^') |
12209 | needargs = TRUE; | |
378cc40b | 12210 | } |
7121b347 MG |
12211 | if (eol > s) { |
12212 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 12213 | #ifndef PERL_STRICT_CR |
7121b347 MG |
12214 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
12215 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
12216 | end[-2] = '\n'; | |
12217 | end[-1] = '\0'; | |
b162af07 | 12218 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 12219 | } |
2dc4c65b | 12220 | #endif |
7121b347 MG |
12221 | } |
12222 | else | |
12223 | break; | |
79072805 | 12224 | } |
95a20fc0 | 12225 | s = (char*)eol; |
3280af22 | 12226 | if (PL_rsfp) { |
5db06880 NC |
12227 | #ifdef PERL_MAD |
12228 | if (PL_madskills) { | |
cd81e915 NC |
12229 | if (PL_thistoken) |
12230 | sv_catpvn(PL_thistoken, tokenstart, PL_bufend - tokenstart); | |
5db06880 | 12231 | else |
cd81e915 | 12232 | PL_thistoken = newSVpvn(tokenstart, PL_bufend - tokenstart); |
5db06880 NC |
12233 | } |
12234 | #endif | |
3280af22 | 12235 | s = filter_gets(PL_linestr, PL_rsfp, 0); |
5db06880 NC |
12236 | #ifdef PERL_MAD |
12237 | tokenstart = PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
12238 | #else | |
3280af22 | 12239 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); |
5db06880 | 12240 | #endif |
3280af22 | 12241 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); |
bd61b366 | 12242 | PL_last_lop = PL_last_uni = NULL; |
79072805 | 12243 | if (!s) { |
3280af22 | 12244 | s = PL_bufptr; |
378cc40b LW |
12245 | break; |
12246 | } | |
378cc40b | 12247 | } |
463ee0b2 | 12248 | incline(s); |
79072805 | 12249 | } |
a0d0e21e LW |
12250 | enough: |
12251 | if (SvCUR(stuff)) { | |
3280af22 | 12252 | PL_expect = XTERM; |
79072805 | 12253 | if (needargs) { |
3280af22 | 12254 | PL_lex_state = LEX_NORMAL; |
cd81e915 | 12255 | start_force(PL_curforce); |
9ded7720 | 12256 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 LW |
12257 | force_next(','); |
12258 | } | |
a0d0e21e | 12259 | else |
3280af22 | 12260 | PL_lex_state = LEX_FORMLINE; |
1bd51a4c | 12261 | if (!IN_BYTES) { |
95a20fc0 | 12262 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
1bd51a4c IH |
12263 | SvUTF8_on(stuff); |
12264 | else if (PL_encoding) | |
12265 | sv_recode_to_utf8(stuff, PL_encoding); | |
12266 | } | |
cd81e915 | 12267 | start_force(PL_curforce); |
9ded7720 | 12268 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 12269 | force_next(THING); |
cd81e915 | 12270 | start_force(PL_curforce); |
9ded7720 | 12271 | NEXTVAL_NEXTTOKE.ival = OP_FORMLINE; |
79072805 | 12272 | force_next(LSTOP); |
378cc40b | 12273 | } |
79072805 | 12274 | else { |
8990e307 | 12275 | SvREFCNT_dec(stuff); |
c5ee2135 WL |
12276 | if (eofmt) |
12277 | PL_lex_formbrack = 0; | |
3280af22 | 12278 | PL_bufptr = s; |
79072805 | 12279 | } |
5db06880 NC |
12280 | #ifdef PERL_MAD |
12281 | if (PL_madskills) { | |
cd81e915 NC |
12282 | if (PL_thistoken) |
12283 | sv_catpvn(PL_thistoken, tokenstart, s - tokenstart); | |
5db06880 | 12284 | else |
cd81e915 NC |
12285 | PL_thistoken = newSVpvn(tokenstart, s - tokenstart); |
12286 | PL_thiswhite = savewhite; | |
5db06880 NC |
12287 | } |
12288 | #endif | |
79072805 | 12289 | return s; |
378cc40b | 12290 | } |
a687059c | 12291 | |
76e3520e | 12292 | STATIC void |
cea2e8a9 | 12293 | S_set_csh(pTHX) |
a687059c | 12294 | { |
ae986130 | 12295 | #ifdef CSH |
97aff369 | 12296 | dVAR; |
3280af22 NIS |
12297 | if (!PL_cshlen) |
12298 | PL_cshlen = strlen(PL_cshname); | |
5f66b61c | 12299 | #else |
b2675967 | 12300 | #if defined(USE_ITHREADS) |
96a5add6 | 12301 | PERL_UNUSED_CONTEXT; |
ae986130 | 12302 | #endif |
b2675967 | 12303 | #endif |
a687059c | 12304 | } |
463ee0b2 | 12305 | |
ba6d6ac9 | 12306 | I32 |
864dbfa3 | 12307 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 12308 | { |
97aff369 | 12309 | dVAR; |
a3b680e6 | 12310 | const I32 oldsavestack_ix = PL_savestack_ix; |
6136c704 | 12311 | CV* const outsidecv = PL_compcv; |
8990e307 | 12312 | |
3280af22 NIS |
12313 | if (PL_compcv) { |
12314 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 12315 | } |
7766f137 | 12316 | SAVEI32(PL_subline); |
3280af22 | 12317 | save_item(PL_subname); |
3280af22 | 12318 | SAVESPTR(PL_compcv); |
3280af22 | 12319 | |
561b68a9 | 12320 | PL_compcv = (CV*)newSV(0); |
3280af22 NIS |
12321 | sv_upgrade((SV *)PL_compcv, is_format ? SVt_PVFM : SVt_PVCV); |
12322 | CvFLAGS(PL_compcv) |= flags; | |
12323 | ||
57843af0 | 12324 | PL_subline = CopLINE(PL_curcop); |
dd2155a4 | 12325 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
b37c2d43 | 12326 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc_simple(outsidecv); |
a3985cdc | 12327 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
748a9306 | 12328 | |
8990e307 LW |
12329 | return oldsavestack_ix; |
12330 | } | |
12331 | ||
084592ab CN |
12332 | #ifdef __SC__ |
12333 | #pragma segment Perl_yylex | |
12334 | #endif | |
8990e307 | 12335 | int |
bfed75c6 | 12336 | Perl_yywarn(pTHX_ const char *s) |
8990e307 | 12337 | { |
97aff369 | 12338 | dVAR; |
faef0170 | 12339 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 12340 | yyerror(s); |
faef0170 | 12341 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 12342 | return 0; |
8990e307 LW |
12343 | } |
12344 | ||
12345 | int | |
bfed75c6 | 12346 | Perl_yyerror(pTHX_ const char *s) |
463ee0b2 | 12347 | { |
97aff369 | 12348 | dVAR; |
bfed75c6 AL |
12349 | const char *where = NULL; |
12350 | const char *context = NULL; | |
68dc0745 | 12351 | int contlen = -1; |
46fc3d4c | 12352 | SV *msg; |
463ee0b2 | 12353 | |
3280af22 | 12354 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 12355 | where = "at EOF"; |
8bcfe651 TM |
12356 | else if (PL_oldoldbufptr && PL_bufptr > PL_oldoldbufptr && |
12357 | PL_bufptr - PL_oldoldbufptr < 200 && PL_oldoldbufptr != PL_oldbufptr && | |
12358 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12359 | /* |
12360 | Only for NetWare: | |
12361 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12362 | when the script has error such as not having the closing quotes like: | |
12363 | if ($var eq "value) | |
12364 | Checking of white spaces is anyway done in NetWare code. | |
12365 | */ | |
12366 | #ifndef NETWARE | |
3280af22 NIS |
12367 | while (isSPACE(*PL_oldoldbufptr)) |
12368 | PL_oldoldbufptr++; | |
f355267c | 12369 | #endif |
3280af22 NIS |
12370 | context = PL_oldoldbufptr; |
12371 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 12372 | } |
8bcfe651 TM |
12373 | else if (PL_oldbufptr && PL_bufptr > PL_oldbufptr && |
12374 | PL_bufptr - PL_oldbufptr < 200 && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12375 | /* |
12376 | Only for NetWare: | |
12377 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12378 | when the script has error such as not having the closing quotes like: | |
12379 | if ($var eq "value) | |
12380 | Checking of white spaces is anyway done in NetWare code. | |
12381 | */ | |
12382 | #ifndef NETWARE | |
3280af22 NIS |
12383 | while (isSPACE(*PL_oldbufptr)) |
12384 | PL_oldbufptr++; | |
f355267c | 12385 | #endif |
3280af22 NIS |
12386 | context = PL_oldbufptr; |
12387 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
12388 | } |
12389 | else if (yychar > 255) | |
68dc0745 | 12390 | where = "next token ???"; |
12fbd33b | 12391 | else if (yychar == -2) { /* YYEMPTY */ |
3280af22 NIS |
12392 | if (PL_lex_state == LEX_NORMAL || |
12393 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 12394 | where = "at end of line"; |
3280af22 | 12395 | else if (PL_lex_inpat) |
68dc0745 | 12396 | where = "within pattern"; |
463ee0b2 | 12397 | else |
68dc0745 | 12398 | where = "within string"; |
463ee0b2 | 12399 | } |
46fc3d4c | 12400 | else { |
6136c704 | 12401 | SV * const where_sv = sv_2mortal(newSVpvs("next char ")); |
46fc3d4c | 12402 | if (yychar < 32) |
cea2e8a9 | 12403 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
46fc3d4c | 12404 | else if (isPRINT_LC(yychar)) |
cea2e8a9 | 12405 | Perl_sv_catpvf(aTHX_ where_sv, "%c", yychar); |
463ee0b2 | 12406 | else |
cea2e8a9 | 12407 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
95a20fc0 | 12408 | where = SvPVX_const(where_sv); |
463ee0b2 | 12409 | } |
46fc3d4c | 12410 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 12411 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 12412 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 12413 | if (context) |
cea2e8a9 | 12414 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 12415 | else |
cea2e8a9 | 12416 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 12417 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 12418 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 12419 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 12420 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 12421 | PL_multi_end = 0; |
a0d0e21e | 12422 | } |
56da5a46 | 12423 | if (PL_in_eval & EVAL_WARNONLY && ckWARN_d(WARN_SYNTAX)) |
95b63a38 | 12424 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, (void*)msg); |
463ee0b2 | 12425 | else |
5a844595 | 12426 | qerror(msg); |
c7d6bfb2 GS |
12427 | if (PL_error_count >= 10) { |
12428 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 12429 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
95b63a38 | 12430 | (void*)ERRSV, OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
12431 | else |
12432 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 12433 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 12434 | } |
3280af22 | 12435 | PL_in_my = 0; |
5c284bb0 | 12436 | PL_in_my_stash = NULL; |
463ee0b2 LW |
12437 | return 0; |
12438 | } | |
084592ab CN |
12439 | #ifdef __SC__ |
12440 | #pragma segment Main | |
12441 | #endif | |
4e35701f | 12442 | |
b250498f | 12443 | STATIC char* |
3ae08724 | 12444 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 12445 | { |
97aff369 | 12446 | dVAR; |
f54cb97a | 12447 | const STRLEN slen = SvCUR(PL_linestr); |
7aa207d6 | 12448 | switch (s[0]) { |
4e553d73 NIS |
12449 | case 0xFF: |
12450 | if (s[1] == 0xFE) { | |
7aa207d6 | 12451 | /* UTF-16 little-endian? (or UTF32-LE?) */ |
3ae08724 | 12452 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
7aa207d6 | 12453 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-LE"); |
01ec43d0 | 12454 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12455 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF16-LE script encoding (BOM)\n"); |
3ae08724 | 12456 | s += 2; |
7aa207d6 | 12457 | utf16le: |
dea0fc0b JH |
12458 | if (PL_bufend > (char*)s) { |
12459 | U8 *news; | |
12460 | I32 newlen; | |
12461 | ||
12462 | filter_add(utf16rev_textfilter, NULL); | |
a02a5408 | 12463 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd | 12464 | utf16_to_utf8_reversed(s, news, |
aed58286 | 12465 | PL_bufend - (char*)s - 1, |
1de9afcd | 12466 | &newlen); |
7aa207d6 | 12467 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
5db06880 NC |
12468 | #ifdef PERL_MAD |
12469 | s = (U8*)SvPVX(PL_linestr); | |
12470 | Copy(news, s, newlen, U8); | |
12471 | s[newlen] = '\0'; | |
12472 | #endif | |
dea0fc0b | 12473 | Safefree(news); |
7aa207d6 JH |
12474 | SvUTF8_on(PL_linestr); |
12475 | s = (U8*)SvPVX(PL_linestr); | |
5db06880 NC |
12476 | #ifdef PERL_MAD |
12477 | /* FIXME - is this a general bug fix? */ | |
12478 | s[newlen] = '\0'; | |
12479 | #endif | |
7aa207d6 | 12480 | PL_bufend = SvPVX(PL_linestr) + newlen; |
dea0fc0b | 12481 | } |
b250498f | 12482 | #else |
7aa207d6 | 12483 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-LE"); |
b250498f | 12484 | #endif |
01ec43d0 GS |
12485 | } |
12486 | break; | |
78ae23f5 | 12487 | case 0xFE: |
7aa207d6 | 12488 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 12489 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12490 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b | 12491 | s += 2; |
7aa207d6 | 12492 | utf16be: |
dea0fc0b JH |
12493 | if (PL_bufend > (char *)s) { |
12494 | U8 *news; | |
12495 | I32 newlen; | |
12496 | ||
12497 | filter_add(utf16_textfilter, NULL); | |
a02a5408 | 12498 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd RGS |
12499 | utf16_to_utf8(s, news, |
12500 | PL_bufend - (char*)s, | |
12501 | &newlen); | |
7aa207d6 | 12502 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
dea0fc0b | 12503 | Safefree(news); |
7aa207d6 JH |
12504 | SvUTF8_on(PL_linestr); |
12505 | s = (U8*)SvPVX(PL_linestr); | |
12506 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
dea0fc0b | 12507 | } |
b250498f | 12508 | #else |
7aa207d6 | 12509 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-BE"); |
b250498f | 12510 | #endif |
01ec43d0 GS |
12511 | } |
12512 | break; | |
3ae08724 GS |
12513 | case 0xEF: |
12514 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
7aa207d6 | 12515 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
12516 | s += 3; /* UTF-8 */ |
12517 | } | |
12518 | break; | |
12519 | case 0: | |
7aa207d6 JH |
12520 | if (slen > 3) { |
12521 | if (s[1] == 0) { | |
12522 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
12523 | /* UTF-32 big-endian */ | |
12524 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-BE"); | |
12525 | } | |
12526 | } | |
12527 | else if (s[2] == 0 && s[3] != 0) { | |
12528 | /* Leading bytes | |
12529 | * 00 xx 00 xx | |
12530 | * are a good indicator of UTF-16BE. */ | |
12531 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); | |
12532 | goto utf16be; | |
12533 | } | |
01ec43d0 | 12534 | } |
e294cc5d JH |
12535 | #ifdef EBCDIC |
12536 | case 0xDD: | |
12537 | if (slen > 3 && s[1] == 0x73 && s[2] == 0x66 && s[3] == 0x73) { | |
12538 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); | |
12539 | s += 4; /* UTF-8 */ | |
12540 | } | |
12541 | break; | |
12542 | #endif | |
12543 | ||
7aa207d6 JH |
12544 | default: |
12545 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
12546 | /* Leading bytes | |
12547 | * xx 00 xx 00 | |
12548 | * are a good indicator of UTF-16LE. */ | |
12549 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); | |
12550 | goto utf16le; | |
12551 | } | |
01ec43d0 | 12552 | } |
b8f84bb2 | 12553 | return (char*)s; |
b250498f | 12554 | } |
4755096e | 12555 | |
4755096e GS |
12556 | /* |
12557 | * restore_rsfp | |
12558 | * Restore a source filter. | |
12559 | */ | |
12560 | ||
12561 | static void | |
acfe0abc | 12562 | restore_rsfp(pTHX_ void *f) |
4755096e | 12563 | { |
97aff369 | 12564 | dVAR; |
0bd48802 | 12565 | PerlIO * const fp = (PerlIO*)f; |
4755096e GS |
12566 | |
12567 | if (PL_rsfp == PerlIO_stdin()) | |
12568 | PerlIO_clearerr(PL_rsfp); | |
12569 | else if (PL_rsfp && (PL_rsfp != fp)) | |
12570 | PerlIO_close(PL_rsfp); | |
12571 | PL_rsfp = fp; | |
12572 | } | |
6e3aabd6 GS |
12573 | |
12574 | #ifndef PERL_NO_UTF16_FILTER | |
12575 | static I32 | |
acfe0abc | 12576 | utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12577 | { |
97aff369 | 12578 | dVAR; |
f54cb97a AL |
12579 | const STRLEN old = SvCUR(sv); |
12580 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12581 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12582 | "utf16_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12583 | FPTR2DPTR(void *, utf16_textfilter), |
12584 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12585 | if (count) { |
12586 | U8* tmps; | |
dea0fc0b | 12587 | I32 newlen; |
a02a5408 | 12588 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12589 | Copy(SvPVX_const(sv), tmps, old, char); |
12590 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12591 | SvCUR(sv) - old, &newlen); |
12592 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12593 | } |
1de9afcd RGS |
12594 | DEBUG_P({sv_dump(sv);}); |
12595 | return SvCUR(sv); | |
6e3aabd6 GS |
12596 | } |
12597 | ||
12598 | static I32 | |
acfe0abc | 12599 | utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12600 | { |
97aff369 | 12601 | dVAR; |
f54cb97a AL |
12602 | const STRLEN old = SvCUR(sv); |
12603 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12604 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12605 | "utf16rev_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12606 | FPTR2DPTR(void *, utf16rev_textfilter), |
12607 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12608 | if (count) { |
12609 | U8* tmps; | |
dea0fc0b | 12610 | I32 newlen; |
a02a5408 | 12611 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12612 | Copy(SvPVX_const(sv), tmps, old, char); |
12613 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12614 | SvCUR(sv) - old, &newlen); |
12615 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12616 | } |
1de9afcd | 12617 | DEBUG_P({ sv_dump(sv); }); |
6e3aabd6 GS |
12618 | return count; |
12619 | } | |
12620 | #endif | |
9f4817db | 12621 | |
f333445c JP |
12622 | /* |
12623 | Returns a pointer to the next character after the parsed | |
12624 | vstring, as well as updating the passed in sv. | |
12625 | ||
12626 | Function must be called like | |
12627 | ||
561b68a9 | 12628 | sv = newSV(5); |
f333445c JP |
12629 | s = scan_vstring(s,sv); |
12630 | ||
12631 | The sv should already be large enough to store the vstring | |
12632 | passed in, for performance reasons. | |
12633 | ||
12634 | */ | |
12635 | ||
12636 | char * | |
bfed75c6 | 12637 | Perl_scan_vstring(pTHX_ const char *s, SV *sv) |
f333445c | 12638 | { |
97aff369 | 12639 | dVAR; |
bfed75c6 AL |
12640 | const char *pos = s; |
12641 | const char *start = s; | |
f333445c | 12642 | if (*pos == 'v') pos++; /* get past 'v' */ |
3e884cbf JH |
12643 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
12644 | pos++; | |
f333445c JP |
12645 | if ( *pos != '.') { |
12646 | /* this may not be a v-string if followed by => */ | |
bfed75c6 | 12647 | const char *next = pos; |
8fc7bb1c SM |
12648 | while (next < PL_bufend && isSPACE(*next)) |
12649 | ++next; | |
12650 | if ((PL_bufend - next) >= 2 && *next == '=' && next[1] == '>' ) { | |
f333445c JP |
12651 | /* return string not v-string */ |
12652 | sv_setpvn(sv,(char *)s,pos-s); | |
73d840c0 | 12653 | return (char *)pos; |
f333445c JP |
12654 | } |
12655 | } | |
12656 | ||
12657 | if (!isALPHA(*pos)) { | |
89ebb4a3 | 12658 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
f333445c | 12659 | |
d4c19fe8 AL |
12660 | if (*s == 'v') |
12661 | s++; /* get past 'v' */ | |
f333445c JP |
12662 | |
12663 | sv_setpvn(sv, "", 0); | |
12664 | ||
12665 | for (;;) { | |
d4c19fe8 | 12666 | /* this is atoi() that tolerates underscores */ |
0bd48802 AL |
12667 | U8 *tmpend; |
12668 | UV rev = 0; | |
d4c19fe8 AL |
12669 | const char *end = pos; |
12670 | UV mult = 1; | |
12671 | while (--end >= s) { | |
12672 | if (*end != '_') { | |
12673 | const UV orev = rev; | |
f333445c JP |
12674 | rev += (*end - '0') * mult; |
12675 | mult *= 10; | |
12676 | if (orev > rev && ckWARN_d(WARN_OVERFLOW)) | |
12677 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), | |
12678 | "Integer overflow in decimal number"); | |
12679 | } | |
12680 | } | |
12681 | #ifdef EBCDIC | |
12682 | if (rev > 0x7FFFFFFF) | |
12683 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
12684 | #endif | |
12685 | /* Append native character for the rev point */ | |
12686 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
12687 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
12688 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
12689 | SvUTF8_on(sv); | |
3e884cbf | 12690 | if (pos + 1 < PL_bufend && *pos == '.' && isDIGIT(pos[1])) |
f333445c JP |
12691 | s = ++pos; |
12692 | else { | |
12693 | s = pos; | |
12694 | break; | |
12695 | } | |
3e884cbf | 12696 | while (pos < PL_bufend && (isDIGIT(*pos) || *pos == '_')) |
f333445c JP |
12697 | pos++; |
12698 | } | |
12699 | SvPOK_on(sv); | |
12700 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
12701 | SvRMAGICAL_on(sv); | |
12702 | } | |
73d840c0 | 12703 | return (char *)s; |
f333445c JP |
12704 | } |
12705 | ||
1da4ca5f NC |
12706 | /* |
12707 | * Local variables: | |
12708 | * c-indentation-style: bsd | |
12709 | * c-basic-offset: 4 | |
12710 | * indent-tabs-mode: t | |
12711 | * End: | |
12712 | * | |
37442d52 RGS |
12713 | * ex: set ts=8 sts=4 sw=4 noet: |
12714 | */ |