Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* toke.c |
a687059c | 2 | * |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
6ef55633 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 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 | |
eb0d8d16 NC |
26 | #define new_constant(a,b,c,d,e,f,g) \ |
27 | S_new_constant(aTHX_ a,b,STR_WITH_LEN(c),d,e,f, g) | |
28 | ||
6154021b | 29 | #define pl_yylval (PL_parser->yylval) |
d3b6f988 | 30 | |
acdf0a21 DM |
31 | /* YYINITDEPTH -- initial size of the parser's stacks. */ |
32 | #define YYINITDEPTH 200 | |
33 | ||
199e78b7 DM |
34 | /* XXX temporary backwards compatibility */ |
35 | #define PL_lex_brackets (PL_parser->lex_brackets) | |
36 | #define PL_lex_brackstack (PL_parser->lex_brackstack) | |
37 | #define PL_lex_casemods (PL_parser->lex_casemods) | |
38 | #define PL_lex_casestack (PL_parser->lex_casestack) | |
39 | #define PL_lex_defer (PL_parser->lex_defer) | |
40 | #define PL_lex_dojoin (PL_parser->lex_dojoin) | |
41 | #define PL_lex_expect (PL_parser->lex_expect) | |
42 | #define PL_lex_formbrack (PL_parser->lex_formbrack) | |
43 | #define PL_lex_inpat (PL_parser->lex_inpat) | |
44 | #define PL_lex_inwhat (PL_parser->lex_inwhat) | |
45 | #define PL_lex_op (PL_parser->lex_op) | |
46 | #define PL_lex_repl (PL_parser->lex_repl) | |
47 | #define PL_lex_starts (PL_parser->lex_starts) | |
48 | #define PL_lex_stuff (PL_parser->lex_stuff) | |
49 | #define PL_multi_start (PL_parser->multi_start) | |
50 | #define PL_multi_open (PL_parser->multi_open) | |
51 | #define PL_multi_close (PL_parser->multi_close) | |
52 | #define PL_pending_ident (PL_parser->pending_ident) | |
53 | #define PL_preambled (PL_parser->preambled) | |
54 | #define PL_sublex_info (PL_parser->sublex_info) | |
bdc0bf6f | 55 | #define PL_linestr (PL_parser->linestr) |
c2598295 DM |
56 | #define PL_expect (PL_parser->expect) |
57 | #define PL_copline (PL_parser->copline) | |
f06b5848 DM |
58 | #define PL_bufptr (PL_parser->bufptr) |
59 | #define PL_oldbufptr (PL_parser->oldbufptr) | |
60 | #define PL_oldoldbufptr (PL_parser->oldoldbufptr) | |
61 | #define PL_linestart (PL_parser->linestart) | |
62 | #define PL_bufend (PL_parser->bufend) | |
63 | #define PL_last_uni (PL_parser->last_uni) | |
64 | #define PL_last_lop (PL_parser->last_lop) | |
65 | #define PL_last_lop_op (PL_parser->last_lop_op) | |
bc177e6b | 66 | #define PL_lex_state (PL_parser->lex_state) |
2f9285f8 | 67 | #define PL_rsfp (PL_parser->rsfp) |
5486870f | 68 | #define PL_rsfp_filters (PL_parser->rsfp_filters) |
12bd6ede DM |
69 | #define PL_in_my (PL_parser->in_my) |
70 | #define PL_in_my_stash (PL_parser->in_my_stash) | |
14047fc9 | 71 | #define PL_tokenbuf (PL_parser->tokenbuf) |
670a9cb2 | 72 | #define PL_multi_end (PL_parser->multi_end) |
13765c85 | 73 | #define PL_error_count (PL_parser->error_count) |
199e78b7 DM |
74 | |
75 | #ifdef PERL_MAD | |
76 | # define PL_endwhite (PL_parser->endwhite) | |
77 | # define PL_faketokens (PL_parser->faketokens) | |
78 | # define PL_lasttoke (PL_parser->lasttoke) | |
79 | # define PL_nextwhite (PL_parser->nextwhite) | |
80 | # define PL_realtokenstart (PL_parser->realtokenstart) | |
81 | # define PL_skipwhite (PL_parser->skipwhite) | |
82 | # define PL_thisclose (PL_parser->thisclose) | |
83 | # define PL_thismad (PL_parser->thismad) | |
84 | # define PL_thisopen (PL_parser->thisopen) | |
85 | # define PL_thisstuff (PL_parser->thisstuff) | |
86 | # define PL_thistoken (PL_parser->thistoken) | |
87 | # define PL_thiswhite (PL_parser->thiswhite) | |
fb205e7a DM |
88 | # define PL_thiswhite (PL_parser->thiswhite) |
89 | # define PL_nexttoke (PL_parser->nexttoke) | |
90 | # define PL_curforce (PL_parser->curforce) | |
91 | #else | |
92 | # define PL_nexttoke (PL_parser->nexttoke) | |
93 | # define PL_nexttype (PL_parser->nexttype) | |
94 | # define PL_nextval (PL_parser->nextval) | |
199e78b7 DM |
95 | #endif |
96 | ||
3cbf51f5 DM |
97 | static int |
98 | S_pending_ident(pTHX); | |
199e78b7 | 99 | |
0bd48802 | 100 | static const char ident_too_long[] = "Identifier too long"; |
c445ea15 | 101 | static const char commaless_variable_list[] = "comma-less variable list"; |
8903cb82 | 102 | |
6e3aabd6 | 103 | #ifndef PERL_NO_UTF16_FILTER |
acfe0abc GS |
104 | static I32 utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen); |
105 | static I32 utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen); | |
6e3aabd6 | 106 | #endif |
51371543 | 107 | |
29595ff2 | 108 | #ifdef PERL_MAD |
29595ff2 | 109 | # define CURMAD(slot,sv) if (PL_madskills) { curmad(slot,sv); sv = 0; } |
cd81e915 | 110 | # define NEXTVAL_NEXTTOKE PL_nexttoke[PL_curforce].next_val |
9ded7720 | 111 | #else |
5db06880 | 112 | # define CURMAD(slot,sv) |
9ded7720 | 113 | # define NEXTVAL_NEXTTOKE PL_nextval[PL_nexttoke] |
29595ff2 NC |
114 | #endif |
115 | ||
9059aa12 LW |
116 | #define XFAKEBRACK 128 |
117 | #define XENUMMASK 127 | |
118 | ||
39e02b42 JH |
119 | #ifdef USE_UTF8_SCRIPTS |
120 | # define UTF (!IN_BYTES) | |
2b9d42f0 | 121 | #else |
746b446a | 122 | # define UTF ((PL_linestr && DO_UTF8(PL_linestr)) || (PL_hints & HINT_UTF8)) |
2b9d42f0 | 123 | #endif |
a0ed51b3 | 124 | |
61f0cdd9 | 125 | /* In variables named $^X, these are the legal values for X. |
2b92dfce GS |
126 | * 1999-02-27 mjd-perl-patch@plover.com */ |
127 | #define isCONTROLVAR(x) (isUPPER(x) || strchr("[\\]^_?", (x))) | |
128 | ||
bf4acbe4 GS |
129 | /* On MacOS, respect nonbreaking spaces */ |
130 | #ifdef MACOS_TRADITIONAL | |
131 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\312'||(c)=='\t') | |
132 | #else | |
133 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\t') | |
134 | #endif | |
135 | ||
ffb4593c NT |
136 | /* LEX_* are values for PL_lex_state, the state of the lexer. |
137 | * They are arranged oddly so that the guard on the switch statement | |
79072805 LW |
138 | * can get by with a single comparison (if the compiler is smart enough). |
139 | */ | |
140 | ||
fb73857a | 141 | /* #define LEX_NOTPARSING 11 is done in perl.h. */ |
142 | ||
b6007c36 DM |
143 | #define LEX_NORMAL 10 /* normal code (ie not within "...") */ |
144 | #define LEX_INTERPNORMAL 9 /* code within a string, eg "$foo[$x+1]" */ | |
145 | #define LEX_INTERPCASEMOD 8 /* expecting a \U, \Q or \E etc */ | |
146 | #define LEX_INTERPPUSH 7 /* starting a new sublex parse level */ | |
147 | #define LEX_INTERPSTART 6 /* expecting the start of a $var */ | |
148 | ||
149 | /* at end of code, eg "$x" followed by: */ | |
150 | #define LEX_INTERPEND 5 /* ... eg not one of [, { or -> */ | |
151 | #define LEX_INTERPENDMAYBE 4 /* ... eg one of [, { or -> */ | |
152 | ||
153 | #define LEX_INTERPCONCAT 3 /* expecting anything, eg at start of | |
154 | string or after \E, $foo, etc */ | |
155 | #define LEX_INTERPCONST 2 /* NOT USED */ | |
156 | #define LEX_FORMLINE 1 /* expecting a format line */ | |
157 | #define LEX_KNOWNEXT 0 /* next token known; just return it */ | |
158 | ||
79072805 | 159 | |
bbf60fe6 | 160 | #ifdef DEBUGGING |
27da23d5 | 161 | static const char* const lex_state_names[] = { |
bbf60fe6 DM |
162 | "KNOWNEXT", |
163 | "FORMLINE", | |
164 | "INTERPCONST", | |
165 | "INTERPCONCAT", | |
166 | "INTERPENDMAYBE", | |
167 | "INTERPEND", | |
168 | "INTERPSTART", | |
169 | "INTERPPUSH", | |
170 | "INTERPCASEMOD", | |
171 | "INTERPNORMAL", | |
172 | "NORMAL" | |
173 | }; | |
174 | #endif | |
175 | ||
79072805 LW |
176 | #ifdef ff_next |
177 | #undef ff_next | |
d48672a2 LW |
178 | #endif |
179 | ||
79072805 | 180 | #include "keywords.h" |
fe14fcc3 | 181 | |
ffb4593c NT |
182 | /* CLINE is a macro that ensures PL_copline has a sane value */ |
183 | ||
ae986130 LW |
184 | #ifdef CLINE |
185 | #undef CLINE | |
186 | #endif | |
57843af0 | 187 | #define CLINE (PL_copline = (CopLINE(PL_curcop) < PL_copline ? CopLINE(PL_curcop) : PL_copline)) |
3280af22 | 188 | |
5db06880 | 189 | #ifdef PERL_MAD |
29595ff2 NC |
190 | # define SKIPSPACE0(s) skipspace0(s) |
191 | # define SKIPSPACE1(s) skipspace1(s) | |
192 | # define SKIPSPACE2(s,tsv) skipspace2(s,&tsv) | |
193 | # define PEEKSPACE(s) skipspace2(s,0) | |
194 | #else | |
195 | # define SKIPSPACE0(s) skipspace(s) | |
196 | # define SKIPSPACE1(s) skipspace(s) | |
197 | # define SKIPSPACE2(s,tsv) skipspace(s) | |
198 | # define PEEKSPACE(s) skipspace(s) | |
199 | #endif | |
200 | ||
ffb4593c NT |
201 | /* |
202 | * Convenience functions to return different tokens and prime the | |
9cbb5ea2 | 203 | * lexer for the next token. They all take an argument. |
ffb4593c NT |
204 | * |
205 | * TOKEN : generic token (used for '(', DOLSHARP, etc) | |
206 | * OPERATOR : generic operator | |
207 | * AOPERATOR : assignment operator | |
208 | * PREBLOCK : beginning the block after an if, while, foreach, ... | |
209 | * PRETERMBLOCK : beginning a non-code-defining {} block (eg, hash ref) | |
210 | * PREREF : *EXPR where EXPR is not a simple identifier | |
211 | * TERM : expression term | |
212 | * LOOPX : loop exiting command (goto, last, dump, etc) | |
213 | * FTST : file test operator | |
214 | * FUN0 : zero-argument function | |
2d2e263d | 215 | * FUN1 : not used, except for not, which isn't a UNIOP |
ffb4593c NT |
216 | * BOop : bitwise or or xor |
217 | * BAop : bitwise and | |
218 | * SHop : shift operator | |
219 | * PWop : power operator | |
9cbb5ea2 | 220 | * PMop : pattern-matching operator |
ffb4593c NT |
221 | * Aop : addition-level operator |
222 | * Mop : multiplication-level operator | |
223 | * Eop : equality-testing operator | |
e5edeb50 | 224 | * Rop : relational operator <= != gt |
ffb4593c NT |
225 | * |
226 | * Also see LOP and lop() below. | |
227 | */ | |
228 | ||
998054bd | 229 | #ifdef DEBUGGING /* Serve -DT. */ |
f5bd084c | 230 | # define REPORT(retval) tokereport((I32)retval) |
998054bd | 231 | #else |
bbf60fe6 | 232 | # define REPORT(retval) (retval) |
998054bd SC |
233 | #endif |
234 | ||
bbf60fe6 DM |
235 | #define TOKEN(retval) return ( PL_bufptr = s, REPORT(retval)) |
236 | #define OPERATOR(retval) return (PL_expect = XTERM, PL_bufptr = s, REPORT(retval)) | |
237 | #define AOPERATOR(retval) return ao((PL_expect = XTERM, PL_bufptr = s, REPORT(retval))) | |
238 | #define PREBLOCK(retval) return (PL_expect = XBLOCK,PL_bufptr = s, REPORT(retval)) | |
239 | #define PRETERMBLOCK(retval) return (PL_expect = XTERMBLOCK,PL_bufptr = s, REPORT(retval)) | |
240 | #define PREREF(retval) return (PL_expect = XREF,PL_bufptr = s, REPORT(retval)) | |
241 | #define TERM(retval) return (CLINE, PL_expect = XOPERATOR, PL_bufptr = s, REPORT(retval)) | |
6154021b RGS |
242 | #define LOOPX(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)LOOPEX)) |
243 | #define FTST(f) return (pl_yylval.ival=f, PL_expect=XTERMORDORDOR, PL_bufptr=s, REPORT((int)UNIOP)) | |
244 | #define FUN0(f) return (pl_yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC0)) | |
245 | #define FUN1(f) return (pl_yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC1)) | |
246 | #define BOop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITOROP))) | |
247 | #define BAop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)BITANDOP))) | |
248 | #define SHop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)SHIFTOP))) | |
249 | #define PWop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)POWOP))) | |
250 | #define PMop(f) return(pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MATCHOP)) | |
251 | #define Aop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)ADDOP))) | |
252 | #define Mop(f) return ao((pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)MULOP))) | |
253 | #define Eop(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)EQOP)) | |
254 | #define Rop(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)RELOP)) | |
2f3197b3 | 255 | |
a687059c LW |
256 | /* This bit of chicanery makes a unary function followed by |
257 | * a parenthesis into a function with one argument, highest precedence. | |
6f33ba73 RGS |
258 | * The UNIDOR macro is for unary functions that can be followed by the // |
259 | * operator (such as C<shift // 0>). | |
a687059c | 260 | */ |
376fcdbf | 261 | #define UNI2(f,x) { \ |
6154021b | 262 | pl_yylval.ival = f; \ |
376fcdbf AL |
263 | PL_expect = x; \ |
264 | PL_bufptr = s; \ | |
265 | PL_last_uni = PL_oldbufptr; \ | |
266 | PL_last_lop_op = f; \ | |
267 | if (*s == '(') \ | |
268 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 269 | s = PEEKSPACE(s); \ |
376fcdbf AL |
270 | return REPORT( *s=='(' ? (int)FUNC1 : (int)UNIOP ); \ |
271 | } | |
6f33ba73 RGS |
272 | #define UNI(f) UNI2(f,XTERM) |
273 | #define UNIDOR(f) UNI2(f,XTERMORDORDOR) | |
a687059c | 274 | |
376fcdbf | 275 | #define UNIBRACK(f) { \ |
6154021b | 276 | pl_yylval.ival = f; \ |
376fcdbf AL |
277 | PL_bufptr = s; \ |
278 | PL_last_uni = PL_oldbufptr; \ | |
279 | if (*s == '(') \ | |
280 | return REPORT( (int)FUNC1 ); \ | |
29595ff2 | 281 | s = PEEKSPACE(s); \ |
376fcdbf AL |
282 | return REPORT( (*s == '(') ? (int)FUNC1 : (int)UNIOP ); \ |
283 | } | |
79072805 | 284 | |
9f68db38 | 285 | /* grandfather return to old style */ |
6154021b | 286 | #define OLDLOP(f) return(pl_yylval.ival=f,PL_expect = XTERM,PL_bufptr = s,(int)LSTOP) |
79072805 | 287 | |
8fa7f367 JH |
288 | #ifdef DEBUGGING |
289 | ||
6154021b | 290 | /* how to interpret the pl_yylval associated with the token */ |
bbf60fe6 DM |
291 | enum token_type { |
292 | TOKENTYPE_NONE, | |
293 | TOKENTYPE_IVAL, | |
6154021b | 294 | TOKENTYPE_OPNUM, /* pl_yylval.ival contains an opcode number */ |
bbf60fe6 DM |
295 | TOKENTYPE_PVAL, |
296 | TOKENTYPE_OPVAL, | |
297 | TOKENTYPE_GVVAL | |
298 | }; | |
299 | ||
6d4a66ac NC |
300 | static struct debug_tokens { |
301 | const int token; | |
302 | enum token_type type; | |
303 | const char *name; | |
304 | } const debug_tokens[] = | |
9041c2e3 | 305 | { |
bbf60fe6 DM |
306 | { ADDOP, TOKENTYPE_OPNUM, "ADDOP" }, |
307 | { ANDAND, TOKENTYPE_NONE, "ANDAND" }, | |
308 | { ANDOP, TOKENTYPE_NONE, "ANDOP" }, | |
309 | { ANONSUB, TOKENTYPE_IVAL, "ANONSUB" }, | |
310 | { ARROW, TOKENTYPE_NONE, "ARROW" }, | |
311 | { ASSIGNOP, TOKENTYPE_OPNUM, "ASSIGNOP" }, | |
312 | { BITANDOP, TOKENTYPE_OPNUM, "BITANDOP" }, | |
313 | { BITOROP, TOKENTYPE_OPNUM, "BITOROP" }, | |
314 | { COLONATTR, TOKENTYPE_NONE, "COLONATTR" }, | |
315 | { CONTINUE, TOKENTYPE_NONE, "CONTINUE" }, | |
0d863452 | 316 | { DEFAULT, TOKENTYPE_NONE, "DEFAULT" }, |
bbf60fe6 DM |
317 | { DO, TOKENTYPE_NONE, "DO" }, |
318 | { DOLSHARP, TOKENTYPE_NONE, "DOLSHARP" }, | |
319 | { DORDOR, TOKENTYPE_NONE, "DORDOR" }, | |
320 | { DOROP, TOKENTYPE_OPNUM, "DOROP" }, | |
321 | { DOTDOT, TOKENTYPE_IVAL, "DOTDOT" }, | |
322 | { ELSE, TOKENTYPE_NONE, "ELSE" }, | |
323 | { ELSIF, TOKENTYPE_IVAL, "ELSIF" }, | |
324 | { EQOP, TOKENTYPE_OPNUM, "EQOP" }, | |
325 | { FOR, TOKENTYPE_IVAL, "FOR" }, | |
326 | { FORMAT, TOKENTYPE_NONE, "FORMAT" }, | |
327 | { FUNC, TOKENTYPE_OPNUM, "FUNC" }, | |
328 | { FUNC0, TOKENTYPE_OPNUM, "FUNC0" }, | |
329 | { FUNC0SUB, TOKENTYPE_OPVAL, "FUNC0SUB" }, | |
330 | { FUNC1, TOKENTYPE_OPNUM, "FUNC1" }, | |
331 | { FUNCMETH, TOKENTYPE_OPVAL, "FUNCMETH" }, | |
0d863452 | 332 | { GIVEN, TOKENTYPE_IVAL, "GIVEN" }, |
bbf60fe6 DM |
333 | { HASHBRACK, TOKENTYPE_NONE, "HASHBRACK" }, |
334 | { IF, TOKENTYPE_IVAL, "IF" }, | |
335 | { LABEL, TOKENTYPE_PVAL, "LABEL" }, | |
336 | { LOCAL, TOKENTYPE_IVAL, "LOCAL" }, | |
337 | { LOOPEX, TOKENTYPE_OPNUM, "LOOPEX" }, | |
338 | { LSTOP, TOKENTYPE_OPNUM, "LSTOP" }, | |
339 | { LSTOPSUB, TOKENTYPE_OPVAL, "LSTOPSUB" }, | |
340 | { MATCHOP, TOKENTYPE_OPNUM, "MATCHOP" }, | |
341 | { METHOD, TOKENTYPE_OPVAL, "METHOD" }, | |
342 | { MULOP, TOKENTYPE_OPNUM, "MULOP" }, | |
343 | { MY, TOKENTYPE_IVAL, "MY" }, | |
344 | { MYSUB, TOKENTYPE_NONE, "MYSUB" }, | |
345 | { NOAMP, TOKENTYPE_NONE, "NOAMP" }, | |
346 | { NOTOP, TOKENTYPE_NONE, "NOTOP" }, | |
347 | { OROP, TOKENTYPE_IVAL, "OROP" }, | |
348 | { OROR, TOKENTYPE_NONE, "OROR" }, | |
349 | { PACKAGE, TOKENTYPE_NONE, "PACKAGE" }, | |
350 | { PMFUNC, TOKENTYPE_OPVAL, "PMFUNC" }, | |
351 | { POSTDEC, TOKENTYPE_NONE, "POSTDEC" }, | |
352 | { POSTINC, TOKENTYPE_NONE, "POSTINC" }, | |
353 | { POWOP, TOKENTYPE_OPNUM, "POWOP" }, | |
354 | { PREDEC, TOKENTYPE_NONE, "PREDEC" }, | |
355 | { PREINC, TOKENTYPE_NONE, "PREINC" }, | |
356 | { PRIVATEREF, TOKENTYPE_OPVAL, "PRIVATEREF" }, | |
357 | { REFGEN, TOKENTYPE_NONE, "REFGEN" }, | |
358 | { RELOP, TOKENTYPE_OPNUM, "RELOP" }, | |
359 | { SHIFTOP, TOKENTYPE_OPNUM, "SHIFTOP" }, | |
360 | { SUB, TOKENTYPE_NONE, "SUB" }, | |
361 | { THING, TOKENTYPE_OPVAL, "THING" }, | |
362 | { UMINUS, TOKENTYPE_NONE, "UMINUS" }, | |
363 | { UNIOP, TOKENTYPE_OPNUM, "UNIOP" }, | |
364 | { UNIOPSUB, TOKENTYPE_OPVAL, "UNIOPSUB" }, | |
365 | { UNLESS, TOKENTYPE_IVAL, "UNLESS" }, | |
366 | { UNTIL, TOKENTYPE_IVAL, "UNTIL" }, | |
367 | { USE, TOKENTYPE_IVAL, "USE" }, | |
0d863452 | 368 | { WHEN, TOKENTYPE_IVAL, "WHEN" }, |
bbf60fe6 DM |
369 | { WHILE, TOKENTYPE_IVAL, "WHILE" }, |
370 | { WORD, TOKENTYPE_OPVAL, "WORD" }, | |
c35e046a | 371 | { 0, TOKENTYPE_NONE, NULL } |
bbf60fe6 DM |
372 | }; |
373 | ||
6154021b | 374 | /* dump the returned token in rv, plus any optional arg in pl_yylval */ |
998054bd | 375 | |
bbf60fe6 | 376 | STATIC int |
f5bd084c | 377 | S_tokereport(pTHX_ I32 rv) |
bbf60fe6 | 378 | { |
97aff369 | 379 | dVAR; |
bbf60fe6 | 380 | if (DEBUG_T_TEST) { |
bd61b366 | 381 | const char *name = NULL; |
bbf60fe6 | 382 | enum token_type type = TOKENTYPE_NONE; |
f54cb97a | 383 | const struct debug_tokens *p; |
396482e1 | 384 | SV* const report = newSVpvs("<== "); |
bbf60fe6 | 385 | |
f54cb97a | 386 | for (p = debug_tokens; p->token; p++) { |
bbf60fe6 DM |
387 | if (p->token == (int)rv) { |
388 | name = p->name; | |
389 | type = p->type; | |
390 | break; | |
391 | } | |
392 | } | |
393 | if (name) | |
54667de8 | 394 | Perl_sv_catpv(aTHX_ report, name); |
bbf60fe6 DM |
395 | else if ((char)rv > ' ' && (char)rv < '~') |
396 | Perl_sv_catpvf(aTHX_ report, "'%c'", (char)rv); | |
397 | else if (!rv) | |
396482e1 | 398 | sv_catpvs(report, "EOF"); |
bbf60fe6 DM |
399 | else |
400 | Perl_sv_catpvf(aTHX_ report, "?? %"IVdf, (IV)rv); | |
401 | switch (type) { | |
402 | case TOKENTYPE_NONE: | |
403 | case TOKENTYPE_GVVAL: /* doesn't appear to be used */ | |
404 | break; | |
405 | case TOKENTYPE_IVAL: | |
6154021b | 406 | Perl_sv_catpvf(aTHX_ report, "(ival=%"IVdf")", (IV)pl_yylval.ival); |
bbf60fe6 DM |
407 | break; |
408 | case TOKENTYPE_OPNUM: | |
409 | Perl_sv_catpvf(aTHX_ report, "(ival=op_%s)", | |
6154021b | 410 | PL_op_name[pl_yylval.ival]); |
bbf60fe6 DM |
411 | break; |
412 | case TOKENTYPE_PVAL: | |
6154021b | 413 | Perl_sv_catpvf(aTHX_ report, "(pval=\"%s\")", pl_yylval.pval); |
bbf60fe6 DM |
414 | break; |
415 | case TOKENTYPE_OPVAL: | |
6154021b | 416 | if (pl_yylval.opval) { |
401441c0 | 417 | Perl_sv_catpvf(aTHX_ report, "(opval=op_%s)", |
6154021b RGS |
418 | PL_op_name[pl_yylval.opval->op_type]); |
419 | if (pl_yylval.opval->op_type == OP_CONST) { | |
b6007c36 | 420 | Perl_sv_catpvf(aTHX_ report, " %s", |
6154021b | 421 | SvPEEK(cSVOPx_sv(pl_yylval.opval))); |
b6007c36 DM |
422 | } |
423 | ||
424 | } | |
401441c0 | 425 | else |
396482e1 | 426 | sv_catpvs(report, "(opval=null)"); |
bbf60fe6 DM |
427 | break; |
428 | } | |
b6007c36 | 429 | PerlIO_printf(Perl_debug_log, "### %s\n\n", SvPV_nolen_const(report)); |
bbf60fe6 DM |
430 | }; |
431 | return (int)rv; | |
998054bd SC |
432 | } |
433 | ||
b6007c36 DM |
434 | |
435 | /* print the buffer with suitable escapes */ | |
436 | ||
437 | STATIC void | |
438 | S_printbuf(pTHX_ const char* fmt, const char* s) | |
439 | { | |
396482e1 | 440 | SV* const tmp = newSVpvs(""); |
b6007c36 DM |
441 | PerlIO_printf(Perl_debug_log, fmt, pv_display(tmp, s, strlen(s), 0, 60)); |
442 | SvREFCNT_dec(tmp); | |
443 | } | |
444 | ||
8fa7f367 JH |
445 | #endif |
446 | ||
ffb4593c NT |
447 | /* |
448 | * S_ao | |
449 | * | |
c963b151 BD |
450 | * This subroutine detects &&=, ||=, and //= and turns an ANDAND, OROR or DORDOR |
451 | * into an OP_ANDASSIGN, OP_ORASSIGN, or OP_DORASSIGN | |
ffb4593c NT |
452 | */ |
453 | ||
76e3520e | 454 | STATIC int |
cea2e8a9 | 455 | S_ao(pTHX_ int toketype) |
a0d0e21e | 456 | { |
97aff369 | 457 | dVAR; |
3280af22 NIS |
458 | if (*PL_bufptr == '=') { |
459 | PL_bufptr++; | |
a0d0e21e | 460 | if (toketype == ANDAND) |
6154021b | 461 | pl_yylval.ival = OP_ANDASSIGN; |
a0d0e21e | 462 | else if (toketype == OROR) |
6154021b | 463 | pl_yylval.ival = OP_ORASSIGN; |
c963b151 | 464 | else if (toketype == DORDOR) |
6154021b | 465 | pl_yylval.ival = OP_DORASSIGN; |
a0d0e21e LW |
466 | toketype = ASSIGNOP; |
467 | } | |
468 | return toketype; | |
469 | } | |
470 | ||
ffb4593c NT |
471 | /* |
472 | * S_no_op | |
473 | * When Perl expects an operator and finds something else, no_op | |
474 | * prints the warning. It always prints "<something> found where | |
475 | * operator expected. It prints "Missing semicolon on previous line?" | |
476 | * if the surprise occurs at the start of the line. "do you need to | |
477 | * predeclare ..." is printed out for code like "sub bar; foo bar $x" | |
478 | * where the compiler doesn't know if foo is a method call or a function. | |
479 | * It prints "Missing operator before end of line" if there's nothing | |
480 | * after the missing operator, or "... before <...>" if there is something | |
481 | * after the missing operator. | |
482 | */ | |
483 | ||
76e3520e | 484 | STATIC void |
bfed75c6 | 485 | S_no_op(pTHX_ const char *what, char *s) |
463ee0b2 | 486 | { |
97aff369 | 487 | dVAR; |
9d4ba2ae AL |
488 | char * const oldbp = PL_bufptr; |
489 | const bool is_first = (PL_oldbufptr == PL_linestart); | |
68dc0745 | 490 | |
1189a94a GS |
491 | if (!s) |
492 | s = oldbp; | |
07c798fb | 493 | else |
1189a94a | 494 | PL_bufptr = s; |
cea2e8a9 | 495 | yywarn(Perl_form(aTHX_ "%s found where operator expected", what)); |
56da5a46 RGS |
496 | if (ckWARN_d(WARN_SYNTAX)) { |
497 | if (is_first) | |
498 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
499 | "\t(Missing semicolon on previous line?)\n"); | |
500 | else if (PL_oldoldbufptr && isIDFIRST_lazy_if(PL_oldoldbufptr,UTF)) { | |
f54cb97a | 501 | const char *t; |
c35e046a AL |
502 | for (t = PL_oldoldbufptr; (isALNUM_lazy_if(t,UTF) || *t == ':'); t++) |
503 | NOOP; | |
56da5a46 RGS |
504 | if (t < PL_bufptr && isSPACE(*t)) |
505 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
506 | "\t(Do you need to predeclare %.*s?)\n", | |
551405c4 | 507 | (int)(t - PL_oldoldbufptr), PL_oldoldbufptr); |
56da5a46 RGS |
508 | } |
509 | else { | |
510 | assert(s >= oldbp); | |
511 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
551405c4 | 512 | "\t(Missing operator before %.*s?)\n", (int)(s - oldbp), oldbp); |
56da5a46 | 513 | } |
07c798fb | 514 | } |
3280af22 | 515 | PL_bufptr = oldbp; |
8990e307 LW |
516 | } |
517 | ||
ffb4593c NT |
518 | /* |
519 | * S_missingterm | |
520 | * Complain about missing quote/regexp/heredoc terminator. | |
d4c19fe8 | 521 | * If it's called with NULL then it cauterizes the line buffer. |
ffb4593c NT |
522 | * If we're in a delimited string and the delimiter is a control |
523 | * character, it's reformatted into a two-char sequence like ^C. | |
524 | * This is fatal. | |
525 | */ | |
526 | ||
76e3520e | 527 | STATIC void |
cea2e8a9 | 528 | S_missingterm(pTHX_ char *s) |
8990e307 | 529 | { |
97aff369 | 530 | dVAR; |
8990e307 LW |
531 | char tmpbuf[3]; |
532 | char q; | |
533 | if (s) { | |
9d4ba2ae | 534 | char * const nl = strrchr(s,'\n'); |
d2719217 | 535 | if (nl) |
8990e307 LW |
536 | *nl = '\0'; |
537 | } | |
9d116dd7 JH |
538 | else if ( |
539 | #ifdef EBCDIC | |
540 | iscntrl(PL_multi_close) | |
541 | #else | |
542 | PL_multi_close < 32 || PL_multi_close == 127 | |
543 | #endif | |
544 | ) { | |
8990e307 | 545 | *tmpbuf = '^'; |
585ec06d | 546 | tmpbuf[1] = (char)toCTRL(PL_multi_close); |
8990e307 LW |
547 | tmpbuf[2] = '\0'; |
548 | s = tmpbuf; | |
549 | } | |
550 | else { | |
eb160463 | 551 | *tmpbuf = (char)PL_multi_close; |
8990e307 LW |
552 | tmpbuf[1] = '\0'; |
553 | s = tmpbuf; | |
554 | } | |
555 | q = strchr(s,'"') ? '\'' : '"'; | |
cea2e8a9 | 556 | Perl_croak(aTHX_ "Can't find string terminator %c%s%c anywhere before EOF",q,s,q); |
463ee0b2 | 557 | } |
79072805 | 558 | |
ef89dcc3 | 559 | #define FEATURE_IS_ENABLED(name) \ |
0d863452 | 560 | ((0 != (PL_hints & HINT_LOCALIZE_HH)) \ |
89529cee | 561 | && S_feature_is_enabled(aTHX_ STR_WITH_LEN(name))) |
4a731d7b NC |
562 | /* The longest string we pass in. */ |
563 | #define MAX_FEATURE_LEN (sizeof("switch")-1) | |
564 | ||
0d863452 RH |
565 | /* |
566 | * S_feature_is_enabled | |
567 | * Check whether the named feature is enabled. | |
568 | */ | |
569 | STATIC bool | |
d4c19fe8 | 570 | S_feature_is_enabled(pTHX_ const char *name, STRLEN namelen) |
0d863452 | 571 | { |
97aff369 | 572 | dVAR; |
0d863452 | 573 | HV * const hinthv = GvHV(PL_hintgv); |
4a731d7b NC |
574 | char he_name[8 + MAX_FEATURE_LEN] = "feature_"; |
575 | assert(namelen <= MAX_FEATURE_LEN); | |
576 | memcpy(&he_name[8], name, namelen); | |
d4c19fe8 | 577 | |
7b9ef140 | 578 | return (hinthv && hv_exists(hinthv, he_name, 8 + namelen)); |
0d863452 RH |
579 | } |
580 | ||
ffb4593c NT |
581 | /* |
582 | * Perl_deprecate | |
ffb4593c NT |
583 | */ |
584 | ||
79072805 | 585 | void |
bfed75c6 | 586 | Perl_deprecate(pTHX_ const char *s) |
a0d0e21e | 587 | { |
599cee73 | 588 | if (ckWARN(WARN_DEPRECATED)) |
9014280d | 589 | Perl_warner(aTHX_ packWARN(WARN_DEPRECATED), "Use of %s is deprecated", s); |
a0d0e21e LW |
590 | } |
591 | ||
12bcd1a6 | 592 | void |
bfed75c6 | 593 | Perl_deprecate_old(pTHX_ const char *s) |
12bcd1a6 PM |
594 | { |
595 | /* This function should NOT be called for any new deprecated warnings */ | |
596 | /* Use Perl_deprecate instead */ | |
597 | /* */ | |
598 | /* It is here to maintain backward compatibility with the pre-5.8 */ | |
599 | /* warnings category hierarchy. The "deprecated" category used to */ | |
600 | /* live under the "syntax" category. It is now a top-level category */ | |
601 | /* in its own right. */ | |
602 | ||
603 | if (ckWARN2(WARN_DEPRECATED, WARN_SYNTAX)) | |
bfed75c6 | 604 | Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX), |
12bcd1a6 PM |
605 | "Use of %s is deprecated", s); |
606 | } | |
607 | ||
ffb4593c | 608 | /* |
9cbb5ea2 GS |
609 | * experimental text filters for win32 carriage-returns, utf16-to-utf8 and |
610 | * utf16-to-utf8-reversed. | |
ffb4593c NT |
611 | */ |
612 | ||
c39cd008 GS |
613 | #ifdef PERL_CR_FILTER |
614 | static void | |
615 | strip_return(SV *sv) | |
616 | { | |
95a20fc0 | 617 | register const char *s = SvPVX_const(sv); |
9d4ba2ae | 618 | register const char * const e = s + SvCUR(sv); |
c39cd008 GS |
619 | /* outer loop optimized to do nothing if there are no CR-LFs */ |
620 | while (s < e) { | |
621 | if (*s++ == '\r' && *s == '\n') { | |
622 | /* hit a CR-LF, need to copy the rest */ | |
623 | register char *d = s - 1; | |
624 | *d++ = *s++; | |
625 | while (s < e) { | |
626 | if (*s == '\r' && s[1] == '\n') | |
627 | s++; | |
628 | *d++ = *s++; | |
629 | } | |
630 | SvCUR(sv) -= s - d; | |
631 | return; | |
632 | } | |
633 | } | |
634 | } | |
a868473f | 635 | |
76e3520e | 636 | STATIC I32 |
c39cd008 | 637 | S_cr_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
a868473f | 638 | { |
f54cb97a | 639 | const I32 count = FILTER_READ(idx+1, sv, maxlen); |
c39cd008 GS |
640 | if (count > 0 && !maxlen) |
641 | strip_return(sv); | |
642 | return count; | |
a868473f NIS |
643 | } |
644 | #endif | |
645 | ||
199e78b7 DM |
646 | |
647 | ||
ffb4593c NT |
648 | /* |
649 | * Perl_lex_start | |
5486870f | 650 | * |
e3abe207 | 651 | * Create a parser object and initialise its parser and lexer fields |
5486870f DM |
652 | * |
653 | * rsfp is the opened file handle to read from (if any), | |
654 | * | |
655 | * line holds any initial content already read from the file (or in | |
656 | * the case of no file, such as an eval, the whole contents); | |
657 | * | |
658 | * new_filter indicates that this is a new file and it shouldn't inherit | |
659 | * the filters from the current parser (ie require). | |
ffb4593c NT |
660 | */ |
661 | ||
a0d0e21e | 662 | void |
5486870f | 663 | Perl_lex_start(pTHX_ SV *line, PerlIO *rsfp, bool new_filter) |
79072805 | 664 | { |
97aff369 | 665 | dVAR; |
6ef55633 | 666 | const char *s = NULL; |
8990e307 | 667 | STRLEN len; |
5486870f | 668 | yy_parser *parser, *oparser; |
acdf0a21 DM |
669 | |
670 | /* create and initialise a parser */ | |
671 | ||
199e78b7 | 672 | Newxz(parser, 1, yy_parser); |
5486870f | 673 | parser->old_parser = oparser = PL_parser; |
acdf0a21 DM |
674 | PL_parser = parser; |
675 | ||
676 | Newx(parser->stack, YYINITDEPTH, yy_stack_frame); | |
677 | parser->ps = parser->stack; | |
678 | parser->stack_size = YYINITDEPTH; | |
679 | ||
680 | parser->stack->state = 0; | |
681 | parser->yyerrstatus = 0; | |
682 | parser->yychar = YYEMPTY; /* Cause a token to be read. */ | |
683 | ||
e3abe207 DM |
684 | /* on scope exit, free this parser and restore any outer one */ |
685 | SAVEPARSER(parser); | |
7c4baf47 | 686 | parser->saved_curcop = PL_curcop; |
e3abe207 | 687 | |
acdf0a21 | 688 | /* initialise lexer state */ |
8990e307 | 689 | |
fb205e7a DM |
690 | #ifdef PERL_MAD |
691 | parser->curforce = -1; | |
692 | #else | |
693 | parser->nexttoke = 0; | |
694 | #endif | |
c2598295 | 695 | parser->copline = NOLINE; |
5afb0a62 | 696 | parser->lex_state = LEX_NORMAL; |
c2598295 | 697 | parser->expect = XSTATE; |
2f9285f8 | 698 | parser->rsfp = rsfp; |
56b27c9a | 699 | parser->rsfp_filters = (new_filter || !oparser) ? newAV() |
5486870f | 700 | : (AV*)SvREFCNT_inc(oparser->rsfp_filters); |
2f9285f8 | 701 | |
199e78b7 DM |
702 | Newx(parser->lex_brackstack, 120, char); |
703 | Newx(parser->lex_casestack, 12, char); | |
704 | *parser->lex_casestack = '\0'; | |
02b34bbe | 705 | |
10efb74f NC |
706 | if (line) { |
707 | s = SvPV_const(line, len); | |
708 | } else { | |
709 | len = 0; | |
710 | } | |
bdc0bf6f | 711 | |
10efb74f | 712 | if (!len) { |
bdc0bf6f | 713 | parser->linestr = newSVpvs("\n;"); |
10efb74f | 714 | } else if (SvREADONLY(line) || s[len-1] != ';') { |
bdc0bf6f | 715 | parser->linestr = newSVsv(line); |
10efb74f | 716 | if (s[len-1] != ';') |
bdc0bf6f | 717 | sv_catpvs(parser->linestr, "\n;"); |
6c5ce11d NC |
718 | } else { |
719 | SvTEMP_off(line); | |
720 | SvREFCNT_inc_simple_void_NN(line); | |
bdc0bf6f | 721 | parser->linestr = line; |
8990e307 | 722 | } |
f06b5848 DM |
723 | parser->oldoldbufptr = |
724 | parser->oldbufptr = | |
725 | parser->bufptr = | |
726 | parser->linestart = SvPVX(parser->linestr); | |
727 | parser->bufend = parser->bufptr + SvCUR(parser->linestr); | |
728 | parser->last_lop = parser->last_uni = NULL; | |
79072805 | 729 | } |
a687059c | 730 | |
e3abe207 DM |
731 | |
732 | /* delete a parser object */ | |
733 | ||
734 | void | |
735 | Perl_parser_free(pTHX_ const yy_parser *parser) | |
736 | { | |
7c4baf47 | 737 | PL_curcop = parser->saved_curcop; |
bdc0bf6f DM |
738 | SvREFCNT_dec(parser->linestr); |
739 | ||
2f9285f8 DM |
740 | if (parser->rsfp == PerlIO_stdin()) |
741 | PerlIO_clearerr(parser->rsfp); | |
742 | else if (parser->rsfp && parser->old_parser | |
743 | && parser->rsfp != parser->old_parser->rsfp) | |
744 | PerlIO_close(parser->rsfp); | |
5486870f | 745 | SvREFCNT_dec(parser->rsfp_filters); |
2f9285f8 | 746 | |
e3abe207 DM |
747 | Safefree(parser->stack); |
748 | Safefree(parser->lex_brackstack); | |
749 | Safefree(parser->lex_casestack); | |
750 | PL_parser = parser->old_parser; | |
751 | Safefree(parser); | |
752 | } | |
753 | ||
754 | ||
ffb4593c NT |
755 | /* |
756 | * Perl_lex_end | |
9cbb5ea2 GS |
757 | * Finalizer for lexing operations. Must be called when the parser is |
758 | * done with the lexer. | |
ffb4593c NT |
759 | */ |
760 | ||
463ee0b2 | 761 | void |
864dbfa3 | 762 | Perl_lex_end(pTHX) |
463ee0b2 | 763 | { |
97aff369 | 764 | dVAR; |
3280af22 | 765 | PL_doextract = FALSE; |
463ee0b2 LW |
766 | } |
767 | ||
ffb4593c NT |
768 | /* |
769 | * S_incline | |
770 | * This subroutine has nothing to do with tilting, whether at windmills | |
771 | * or pinball tables. Its name is short for "increment line". It | |
57843af0 | 772 | * increments the current line number in CopLINE(PL_curcop) and checks |
ffb4593c | 773 | * to see whether the line starts with a comment of the form |
9cbb5ea2 GS |
774 | * # line 500 "foo.pm" |
775 | * If so, it sets the current line number and file to the values in the comment. | |
ffb4593c NT |
776 | */ |
777 | ||
76e3520e | 778 | STATIC void |
d9095cec | 779 | S_incline(pTHX_ const char *s) |
463ee0b2 | 780 | { |
97aff369 | 781 | dVAR; |
d9095cec NC |
782 | const char *t; |
783 | const char *n; | |
784 | const char *e; | |
463ee0b2 | 785 | |
57843af0 | 786 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
787 | if (*s++ != '#') |
788 | return; | |
d4c19fe8 AL |
789 | while (SPACE_OR_TAB(*s)) |
790 | s++; | |
73659bf1 GS |
791 | if (strnEQ(s, "line", 4)) |
792 | s += 4; | |
793 | else | |
794 | return; | |
084592ab | 795 | if (SPACE_OR_TAB(*s)) |
73659bf1 | 796 | s++; |
4e553d73 | 797 | else |
73659bf1 | 798 | return; |
d4c19fe8 AL |
799 | while (SPACE_OR_TAB(*s)) |
800 | s++; | |
463ee0b2 LW |
801 | if (!isDIGIT(*s)) |
802 | return; | |
d4c19fe8 | 803 | |
463ee0b2 LW |
804 | n = s; |
805 | while (isDIGIT(*s)) | |
806 | s++; | |
bf4acbe4 | 807 | while (SPACE_OR_TAB(*s)) |
463ee0b2 | 808 | s++; |
73659bf1 | 809 | if (*s == '"' && (t = strchr(s+1, '"'))) { |
463ee0b2 | 810 | s++; |
73659bf1 GS |
811 | e = t + 1; |
812 | } | |
463ee0b2 | 813 | else { |
c35e046a AL |
814 | t = s; |
815 | while (!isSPACE(*t)) | |
816 | t++; | |
73659bf1 | 817 | e = t; |
463ee0b2 | 818 | } |
bf4acbe4 | 819 | while (SPACE_OR_TAB(*e) || *e == '\r' || *e == '\f') |
73659bf1 GS |
820 | e++; |
821 | if (*e != '\n' && *e != '\0') | |
822 | return; /* false alarm */ | |
823 | ||
f4dd75d9 | 824 | if (t - s > 0) { |
d9095cec | 825 | const STRLEN len = t - s; |
8a5ee598 | 826 | #ifndef USE_ITHREADS |
19bad673 NC |
827 | SV *const temp_sv = CopFILESV(PL_curcop); |
828 | const char *cf; | |
829 | STRLEN tmplen; | |
830 | ||
831 | if (temp_sv) { | |
832 | cf = SvPVX(temp_sv); | |
833 | tmplen = SvCUR(temp_sv); | |
834 | } else { | |
835 | cf = NULL; | |
836 | tmplen = 0; | |
837 | } | |
838 | ||
42d9b98d | 839 | if (tmplen > 7 && strnEQ(cf, "(eval ", 6)) { |
e66cf94c RGS |
840 | /* must copy *{"::_<(eval N)[oldfilename:L]"} |
841 | * to *{"::_<newfilename"} */ | |
44867030 NC |
842 | /* However, the long form of evals is only turned on by the |
843 | debugger - usually they're "(eval %lu)" */ | |
844 | char smallbuf[128]; | |
845 | char *tmpbuf; | |
846 | GV **gvp; | |
d9095cec | 847 | STRLEN tmplen2 = len; |
798b63bc | 848 | if (tmplen + 2 <= sizeof smallbuf) |
e66cf94c RGS |
849 | tmpbuf = smallbuf; |
850 | else | |
2ae0db35 | 851 | Newx(tmpbuf, tmplen + 2, char); |
44867030 NC |
852 | tmpbuf[0] = '_'; |
853 | tmpbuf[1] = '<'; | |
2ae0db35 | 854 | memcpy(tmpbuf + 2, cf, tmplen); |
44867030 | 855 | tmplen += 2; |
8a5ee598 RGS |
856 | gvp = (GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, FALSE); |
857 | if (gvp) { | |
44867030 NC |
858 | char *tmpbuf2; |
859 | GV *gv2; | |
860 | ||
861 | if (tmplen2 + 2 <= sizeof smallbuf) | |
862 | tmpbuf2 = smallbuf; | |
863 | else | |
864 | Newx(tmpbuf2, tmplen2 + 2, char); | |
865 | ||
866 | if (tmpbuf2 != smallbuf || tmpbuf != smallbuf) { | |
867 | /* Either they malloc'd it, or we malloc'd it, | |
868 | so no prefix is present in ours. */ | |
869 | tmpbuf2[0] = '_'; | |
870 | tmpbuf2[1] = '<'; | |
871 | } | |
872 | ||
873 | memcpy(tmpbuf2 + 2, s, tmplen2); | |
874 | tmplen2 += 2; | |
875 | ||
8a5ee598 | 876 | gv2 = *(GV**)hv_fetch(PL_defstash, tmpbuf2, tmplen2, TRUE); |
e5527e4b | 877 | if (!isGV(gv2)) { |
8a5ee598 | 878 | gv_init(gv2, PL_defstash, tmpbuf2, tmplen2, FALSE); |
e5527e4b RGS |
879 | /* adjust ${"::_<newfilename"} to store the new file name */ |
880 | GvSV(gv2) = newSVpvn(tmpbuf2 + 2, tmplen2 - 2); | |
881 | GvHV(gv2) = (HV*)SvREFCNT_inc(GvHV(*gvp)); | |
882 | GvAV(gv2) = (AV*)SvREFCNT_inc(GvAV(*gvp)); | |
883 | } | |
44867030 NC |
884 | |
885 | if (tmpbuf2 != smallbuf) Safefree(tmpbuf2); | |
8a5ee598 | 886 | } |
e66cf94c | 887 | if (tmpbuf != smallbuf) Safefree(tmpbuf); |
e66cf94c | 888 | } |
8a5ee598 | 889 | #endif |
05ec9bb3 | 890 | CopFILE_free(PL_curcop); |
d9095cec | 891 | CopFILE_setn(PL_curcop, s, len); |
f4dd75d9 | 892 | } |
57843af0 | 893 | CopLINE_set(PL_curcop, atoi(n)-1); |
463ee0b2 LW |
894 | } |
895 | ||
29595ff2 | 896 | #ifdef PERL_MAD |
cd81e915 | 897 | /* skip space before PL_thistoken */ |
29595ff2 NC |
898 | |
899 | STATIC char * | |
900 | S_skipspace0(pTHX_ register char *s) | |
901 | { | |
902 | s = skipspace(s); | |
903 | if (!PL_madskills) | |
904 | return s; | |
cd81e915 NC |
905 | if (PL_skipwhite) { |
906 | if (!PL_thiswhite) | |
6b29d1f5 | 907 | PL_thiswhite = newSVpvs(""); |
cd81e915 NC |
908 | sv_catsv(PL_thiswhite, PL_skipwhite); |
909 | sv_free(PL_skipwhite); | |
910 | PL_skipwhite = 0; | |
911 | } | |
912 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
29595ff2 NC |
913 | return s; |
914 | } | |
915 | ||
cd81e915 | 916 | /* skip space after PL_thistoken */ |
29595ff2 NC |
917 | |
918 | STATIC char * | |
919 | S_skipspace1(pTHX_ register char *s) | |
920 | { | |
d4c19fe8 | 921 | const char *start = s; |
29595ff2 NC |
922 | I32 startoff = start - SvPVX(PL_linestr); |
923 | ||
924 | s = skipspace(s); | |
925 | if (!PL_madskills) | |
926 | return s; | |
927 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 928 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 929 | const char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
930 | PL_thistoken = newSVpvn(tstart, start - tstart); |
931 | } | |
932 | PL_realtokenstart = -1; | |
933 | if (PL_skipwhite) { | |
934 | if (!PL_nextwhite) | |
6b29d1f5 | 935 | PL_nextwhite = newSVpvs(""); |
cd81e915 NC |
936 | sv_catsv(PL_nextwhite, PL_skipwhite); |
937 | sv_free(PL_skipwhite); | |
938 | PL_skipwhite = 0; | |
29595ff2 NC |
939 | } |
940 | return s; | |
941 | } | |
942 | ||
943 | STATIC char * | |
944 | S_skipspace2(pTHX_ register char *s, SV **svp) | |
945 | { | |
c35e046a AL |
946 | char *start; |
947 | const I32 bufptroff = PL_bufptr - SvPVX(PL_linestr); | |
948 | const I32 startoff = s - SvPVX(PL_linestr); | |
949 | ||
29595ff2 NC |
950 | s = skipspace(s); |
951 | PL_bufptr = SvPVX(PL_linestr) + bufptroff; | |
952 | if (!PL_madskills || !svp) | |
953 | return s; | |
954 | start = SvPVX(PL_linestr) + startoff; | |
cd81e915 | 955 | if (!PL_thistoken && PL_realtokenstart >= 0) { |
d4c19fe8 | 956 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 NC |
957 | PL_thistoken = newSVpvn(tstart, start - tstart); |
958 | PL_realtokenstart = -1; | |
29595ff2 | 959 | } |
cd81e915 | 960 | if (PL_skipwhite) { |
29595ff2 | 961 | if (!*svp) |
6b29d1f5 | 962 | *svp = newSVpvs(""); |
cd81e915 NC |
963 | sv_setsv(*svp, PL_skipwhite); |
964 | sv_free(PL_skipwhite); | |
965 | PL_skipwhite = 0; | |
29595ff2 NC |
966 | } |
967 | ||
968 | return s; | |
969 | } | |
970 | #endif | |
971 | ||
80a702cd | 972 | STATIC void |
5fa550fb | 973 | S_update_debugger_info(pTHX_ SV *orig_sv, const char *buf, STRLEN len) |
80a702cd RGS |
974 | { |
975 | AV *av = CopFILEAVx(PL_curcop); | |
976 | if (av) { | |
b9f83d2f | 977 | SV * const sv = newSV_type(SVt_PVMG); |
5fa550fb NC |
978 | if (orig_sv) |
979 | sv_setsv(sv, orig_sv); | |
980 | else | |
981 | sv_setpvn(sv, buf, len); | |
80a702cd RGS |
982 | (void)SvIOK_on(sv); |
983 | SvIV_set(sv, 0); | |
984 | av_store(av, (I32)CopLINE(PL_curcop), sv); | |
985 | } | |
986 | } | |
987 | ||
ffb4593c NT |
988 | /* |
989 | * S_skipspace | |
990 | * Called to gobble the appropriate amount and type of whitespace. | |
991 | * Skips comments as well. | |
992 | */ | |
993 | ||
76e3520e | 994 | STATIC char * |
cea2e8a9 | 995 | S_skipspace(pTHX_ register char *s) |
a687059c | 996 | { |
97aff369 | 997 | dVAR; |
5db06880 NC |
998 | #ifdef PERL_MAD |
999 | int curoff; | |
1000 | int startoff = s - SvPVX(PL_linestr); | |
1001 | ||
cd81e915 NC |
1002 | if (PL_skipwhite) { |
1003 | sv_free(PL_skipwhite); | |
1004 | PL_skipwhite = 0; | |
5db06880 NC |
1005 | } |
1006 | #endif | |
1007 | ||
3280af22 | 1008 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
bf4acbe4 | 1009 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
463ee0b2 | 1010 | s++; |
5db06880 NC |
1011 | #ifdef PERL_MAD |
1012 | goto done; | |
1013 | #else | |
463ee0b2 | 1014 | return s; |
5db06880 | 1015 | #endif |
463ee0b2 LW |
1016 | } |
1017 | for (;;) { | |
fd049845 | 1018 | STRLEN prevlen; |
09bef843 | 1019 | SSize_t oldprevlen, oldoldprevlen; |
9c5ffd7c | 1020 | SSize_t oldloplen = 0, oldunilen = 0; |
60e6418e GS |
1021 | while (s < PL_bufend && isSPACE(*s)) { |
1022 | if (*s++ == '\n' && PL_in_eval && !PL_rsfp) | |
1023 | incline(s); | |
1024 | } | |
ffb4593c NT |
1025 | |
1026 | /* comment */ | |
3280af22 NIS |
1027 | if (s < PL_bufend && *s == '#') { |
1028 | while (s < PL_bufend && *s != '\n') | |
463ee0b2 | 1029 | s++; |
60e6418e | 1030 | if (s < PL_bufend) { |
463ee0b2 | 1031 | s++; |
60e6418e GS |
1032 | if (PL_in_eval && !PL_rsfp) { |
1033 | incline(s); | |
1034 | continue; | |
1035 | } | |
1036 | } | |
463ee0b2 | 1037 | } |
ffb4593c NT |
1038 | |
1039 | /* only continue to recharge the buffer if we're at the end | |
1040 | * of the buffer, we're not reading from a source filter, and | |
1041 | * we're in normal lexing mode | |
1042 | */ | |
09bef843 SB |
1043 | if (s < PL_bufend || !PL_rsfp || PL_sublex_info.sub_inwhat || |
1044 | PL_lex_state == LEX_FORMLINE) | |
5db06880 NC |
1045 | #ifdef PERL_MAD |
1046 | goto done; | |
1047 | #else | |
463ee0b2 | 1048 | return s; |
5db06880 | 1049 | #endif |
ffb4593c NT |
1050 | |
1051 | /* try to recharge the buffer */ | |
5db06880 NC |
1052 | #ifdef PERL_MAD |
1053 | curoff = s - SvPVX(PL_linestr); | |
1054 | #endif | |
1055 | ||
9cbb5ea2 | 1056 | if ((s = filter_gets(PL_linestr, PL_rsfp, |
bd61b366 | 1057 | (prevlen = SvCUR(PL_linestr)))) == NULL) |
9cbb5ea2 | 1058 | { |
5db06880 NC |
1059 | #ifdef PERL_MAD |
1060 | if (PL_madskills && curoff != startoff) { | |
cd81e915 | 1061 | if (!PL_skipwhite) |
6b29d1f5 | 1062 | PL_skipwhite = newSVpvs(""); |
cd81e915 | 1063 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, |
5db06880 NC |
1064 | curoff - startoff); |
1065 | } | |
1066 | ||
1067 | /* mustn't throw out old stuff yet if madpropping */ | |
1068 | SvCUR(PL_linestr) = curoff; | |
1069 | s = SvPVX(PL_linestr) + curoff; | |
1070 | *s = 0; | |
1071 | if (curoff && s[-1] == '\n') | |
1072 | s[-1] = ' '; | |
1073 | #endif | |
1074 | ||
9cbb5ea2 | 1075 | /* end of file. Add on the -p or -n magic */ |
cd81e915 | 1076 | /* XXX these shouldn't really be added here, can't set PL_faketokens */ |
01a19ab0 | 1077 | if (PL_minus_p) { |
5db06880 | 1078 | #ifdef PERL_MAD |
6502358f | 1079 | sv_catpvs(PL_linestr, |
5db06880 NC |
1080 | ";}continue{print or die qq(-p destination: $!\\n);}"); |
1081 | #else | |
6502358f | 1082 | sv_setpvs(PL_linestr, |
01a19ab0 | 1083 | ";}continue{print or die qq(-p destination: $!\\n);}"); |
5db06880 | 1084 | #endif |
3280af22 | 1085 | PL_minus_n = PL_minus_p = 0; |
a0d0e21e | 1086 | } |
01a19ab0 | 1087 | else if (PL_minus_n) { |
5db06880 NC |
1088 | #ifdef PERL_MAD |
1089 | sv_catpvn(PL_linestr, ";}", 2); | |
1090 | #else | |
01a19ab0 | 1091 | sv_setpvn(PL_linestr, ";}", 2); |
5db06880 | 1092 | #endif |
01a19ab0 NC |
1093 | PL_minus_n = 0; |
1094 | } | |
a0d0e21e | 1095 | else |
5db06880 NC |
1096 | #ifdef PERL_MAD |
1097 | sv_catpvn(PL_linestr,";", 1); | |
1098 | #else | |
4147a61b | 1099 | sv_setpvn(PL_linestr,";", 1); |
5db06880 | 1100 | #endif |
ffb4593c NT |
1101 | |
1102 | /* reset variables for next time we lex */ | |
9cbb5ea2 | 1103 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart |
89122651 NC |
1104 | = SvPVX(PL_linestr) |
1105 | #ifdef PERL_MAD | |
1106 | + curoff | |
1107 | #endif | |
1108 | ; | |
3280af22 | 1109 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 1110 | PL_last_lop = PL_last_uni = NULL; |
ffb4593c | 1111 | |
4c84d7f2 | 1112 | /* Close the filehandle. Could be from |
ffb4593c NT |
1113 | * STDIN, or a regular file. If we were reading code from |
1114 | * STDIN (because the commandline held no -e or filename) | |
1115 | * then we don't close it, we reset it so the code can | |
1116 | * read from STDIN too. | |
1117 | */ | |
1118 | ||
4c84d7f2 | 1119 | if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
3280af22 | 1120 | PerlIO_clearerr(PL_rsfp); |
8990e307 | 1121 | else |
3280af22 | 1122 | (void)PerlIO_close(PL_rsfp); |
4608196e | 1123 | PL_rsfp = NULL; |
463ee0b2 LW |
1124 | return s; |
1125 | } | |
ffb4593c NT |
1126 | |
1127 | /* not at end of file, so we only read another line */ | |
09bef843 SB |
1128 | /* make corresponding updates to old pointers, for yyerror() */ |
1129 | oldprevlen = PL_oldbufptr - PL_bufend; | |
1130 | oldoldprevlen = PL_oldoldbufptr - PL_bufend; | |
1131 | if (PL_last_uni) | |
1132 | oldunilen = PL_last_uni - PL_bufend; | |
1133 | if (PL_last_lop) | |
1134 | oldloplen = PL_last_lop - PL_bufend; | |
3280af22 NIS |
1135 | PL_linestart = PL_bufptr = s + prevlen; |
1136 | PL_bufend = s + SvCUR(PL_linestr); | |
1137 | s = PL_bufptr; | |
09bef843 SB |
1138 | PL_oldbufptr = s + oldprevlen; |
1139 | PL_oldoldbufptr = s + oldoldprevlen; | |
1140 | if (PL_last_uni) | |
1141 | PL_last_uni = s + oldunilen; | |
1142 | if (PL_last_lop) | |
1143 | PL_last_lop = s + oldloplen; | |
a0d0e21e | 1144 | incline(s); |
ffb4593c NT |
1145 | |
1146 | /* debugger active and we're not compiling the debugger code, | |
1147 | * so store the line into the debugger's array of lines | |
1148 | */ | |
80a702cd | 1149 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 1150 | update_debugger_info(NULL, PL_bufptr, PL_bufend - PL_bufptr); |
463ee0b2 | 1151 | } |
5db06880 NC |
1152 | |
1153 | #ifdef PERL_MAD | |
1154 | done: | |
1155 | if (PL_madskills) { | |
cd81e915 | 1156 | if (!PL_skipwhite) |
6b29d1f5 | 1157 | PL_skipwhite = newSVpvs(""); |
5db06880 NC |
1158 | curoff = s - SvPVX(PL_linestr); |
1159 | if (curoff - startoff) | |
cd81e915 | 1160 | sv_catpvn(PL_skipwhite, SvPVX(PL_linestr) + startoff, |
5db06880 NC |
1161 | curoff - startoff); |
1162 | } | |
1163 | return s; | |
1164 | #endif | |
a687059c | 1165 | } |
378cc40b | 1166 | |
ffb4593c NT |
1167 | /* |
1168 | * S_check_uni | |
1169 | * Check the unary operators to ensure there's no ambiguity in how they're | |
1170 | * used. An ambiguous piece of code would be: | |
1171 | * rand + 5 | |
1172 | * This doesn't mean rand() + 5. Because rand() is a unary operator, | |
1173 | * the +5 is its argument. | |
1174 | */ | |
1175 | ||
76e3520e | 1176 | STATIC void |
cea2e8a9 | 1177 | S_check_uni(pTHX) |
ba106d47 | 1178 | { |
97aff369 | 1179 | dVAR; |
d4c19fe8 AL |
1180 | const char *s; |
1181 | const char *t; | |
2f3197b3 | 1182 | |
3280af22 | 1183 | if (PL_oldoldbufptr != PL_last_uni) |
2f3197b3 | 1184 | return; |
3280af22 NIS |
1185 | while (isSPACE(*PL_last_uni)) |
1186 | PL_last_uni++; | |
c35e046a AL |
1187 | s = PL_last_uni; |
1188 | while (isALNUM_lazy_if(s,UTF) || *s == '-') | |
1189 | s++; | |
3280af22 | 1190 | if ((t = strchr(s, '(')) && t < PL_bufptr) |
a0d0e21e | 1191 | return; |
6136c704 | 1192 | |
0453d815 | 1193 | if (ckWARN_d(WARN_AMBIGUOUS)){ |
9014280d | 1194 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
32d45c1d NC |
1195 | "Warning: Use of \"%.*s\" without parentheses is ambiguous", |
1196 | (int)(s - PL_last_uni), PL_last_uni); | |
0453d815 | 1197 | } |
2f3197b3 LW |
1198 | } |
1199 | ||
ffb4593c NT |
1200 | /* |
1201 | * LOP : macro to build a list operator. Its behaviour has been replaced | |
1202 | * with a subroutine, S_lop() for which LOP is just another name. | |
1203 | */ | |
1204 | ||
a0d0e21e LW |
1205 | #define LOP(f,x) return lop(f,x,s) |
1206 | ||
ffb4593c NT |
1207 | /* |
1208 | * S_lop | |
1209 | * Build a list operator (or something that might be one). The rules: | |
1210 | * - if we have a next token, then it's a list operator [why?] | |
1211 | * - if the next thing is an opening paren, then it's a function | |
1212 | * - else it's a list operator | |
1213 | */ | |
1214 | ||
76e3520e | 1215 | STATIC I32 |
a0be28da | 1216 | S_lop(pTHX_ I32 f, int x, char *s) |
ffed7fef | 1217 | { |
97aff369 | 1218 | dVAR; |
6154021b | 1219 | pl_yylval.ival = f; |
35c8bce7 | 1220 | CLINE; |
3280af22 NIS |
1221 | PL_expect = x; |
1222 | PL_bufptr = s; | |
1223 | PL_last_lop = PL_oldbufptr; | |
eb160463 | 1224 | PL_last_lop_op = (OPCODE)f; |
5db06880 NC |
1225 | #ifdef PERL_MAD |
1226 | if (PL_lasttoke) | |
1227 | return REPORT(LSTOP); | |
1228 | #else | |
3280af22 | 1229 | if (PL_nexttoke) |
bbf60fe6 | 1230 | return REPORT(LSTOP); |
5db06880 | 1231 | #endif |
79072805 | 1232 | if (*s == '(') |
bbf60fe6 | 1233 | return REPORT(FUNC); |
29595ff2 | 1234 | s = PEEKSPACE(s); |
79072805 | 1235 | if (*s == '(') |
bbf60fe6 | 1236 | return REPORT(FUNC); |
79072805 | 1237 | else |
bbf60fe6 | 1238 | return REPORT(LSTOP); |
79072805 LW |
1239 | } |
1240 | ||
5db06880 NC |
1241 | #ifdef PERL_MAD |
1242 | /* | |
1243 | * S_start_force | |
1244 | * Sets up for an eventual force_next(). start_force(0) basically does | |
1245 | * an unshift, while start_force(-1) does a push. yylex removes items | |
1246 | * on the "pop" end. | |
1247 | */ | |
1248 | ||
1249 | STATIC void | |
1250 | S_start_force(pTHX_ int where) | |
1251 | { | |
1252 | int i; | |
1253 | ||
cd81e915 | 1254 | if (where < 0) /* so people can duplicate start_force(PL_curforce) */ |
5db06880 | 1255 | where = PL_lasttoke; |
cd81e915 NC |
1256 | assert(PL_curforce < 0 || PL_curforce == where); |
1257 | if (PL_curforce != where) { | |
5db06880 NC |
1258 | for (i = PL_lasttoke; i > where; --i) { |
1259 | PL_nexttoke[i] = PL_nexttoke[i-1]; | |
1260 | } | |
1261 | PL_lasttoke++; | |
1262 | } | |
cd81e915 | 1263 | if (PL_curforce < 0) /* in case of duplicate start_force() */ |
5db06880 | 1264 | Zero(&PL_nexttoke[where], 1, NEXTTOKE); |
cd81e915 NC |
1265 | PL_curforce = where; |
1266 | if (PL_nextwhite) { | |
5db06880 | 1267 | if (PL_madskills) |
6b29d1f5 | 1268 | curmad('^', newSVpvs("")); |
cd81e915 | 1269 | CURMAD('_', PL_nextwhite); |
5db06880 NC |
1270 | } |
1271 | } | |
1272 | ||
1273 | STATIC void | |
1274 | S_curmad(pTHX_ char slot, SV *sv) | |
1275 | { | |
1276 | MADPROP **where; | |
1277 | ||
1278 | if (!sv) | |
1279 | return; | |
cd81e915 NC |
1280 | if (PL_curforce < 0) |
1281 | where = &PL_thismad; | |
5db06880 | 1282 | else |
cd81e915 | 1283 | where = &PL_nexttoke[PL_curforce].next_mad; |
5db06880 | 1284 | |
cd81e915 | 1285 | if (PL_faketokens) |
5db06880 NC |
1286 | sv_setpvn(sv, "", 0); |
1287 | else { | |
1288 | if (!IN_BYTES) { | |
1289 | if (UTF && is_utf8_string((U8*)SvPVX(sv), SvCUR(sv))) | |
1290 | SvUTF8_on(sv); | |
1291 | else if (PL_encoding) { | |
1292 | sv_recode_to_utf8(sv, PL_encoding); | |
1293 | } | |
1294 | } | |
1295 | } | |
1296 | ||
1297 | /* keep a slot open for the head of the list? */ | |
1298 | if (slot != '_' && *where && (*where)->mad_key == '^') { | |
1299 | (*where)->mad_key = slot; | |
035e2bcc | 1300 | sv_free((SV*)((*where)->mad_val)); |
5db06880 NC |
1301 | (*where)->mad_val = (void*)sv; |
1302 | } | |
1303 | else | |
1304 | addmad(newMADsv(slot, sv), where, 0); | |
1305 | } | |
1306 | #else | |
b3f24c00 MHM |
1307 | # define start_force(where) NOOP |
1308 | # define curmad(slot, sv) NOOP | |
5db06880 NC |
1309 | #endif |
1310 | ||
ffb4593c NT |
1311 | /* |
1312 | * S_force_next | |
9cbb5ea2 | 1313 | * When the lexer realizes it knows the next token (for instance, |
ffb4593c | 1314 | * it is reordering tokens for the parser) then it can call S_force_next |
9cbb5ea2 | 1315 | * to know what token to return the next time the lexer is called. Caller |
5db06880 NC |
1316 | * will need to set PL_nextval[] (or PL_nexttoke[].next_val with PERL_MAD), |
1317 | * and possibly PL_expect to ensure the lexer handles the token correctly. | |
ffb4593c NT |
1318 | */ |
1319 | ||
4e553d73 | 1320 | STATIC void |
cea2e8a9 | 1321 | S_force_next(pTHX_ I32 type) |
79072805 | 1322 | { |
97aff369 | 1323 | dVAR; |
5db06880 | 1324 | #ifdef PERL_MAD |
cd81e915 | 1325 | if (PL_curforce < 0) |
5db06880 | 1326 | start_force(PL_lasttoke); |
cd81e915 | 1327 | PL_nexttoke[PL_curforce].next_type = type; |
5db06880 NC |
1328 | if (PL_lex_state != LEX_KNOWNEXT) |
1329 | PL_lex_defer = PL_lex_state; | |
1330 | PL_lex_state = LEX_KNOWNEXT; | |
1331 | PL_lex_expect = PL_expect; | |
cd81e915 | 1332 | PL_curforce = -1; |
5db06880 | 1333 | #else |
3280af22 NIS |
1334 | PL_nexttype[PL_nexttoke] = type; |
1335 | PL_nexttoke++; | |
1336 | if (PL_lex_state != LEX_KNOWNEXT) { | |
1337 | PL_lex_defer = PL_lex_state; | |
1338 | PL_lex_expect = PL_expect; | |
1339 | PL_lex_state = LEX_KNOWNEXT; | |
79072805 | 1340 | } |
5db06880 | 1341 | #endif |
79072805 LW |
1342 | } |
1343 | ||
d0a148a6 NC |
1344 | STATIC SV * |
1345 | S_newSV_maybe_utf8(pTHX_ const char *start, STRLEN len) | |
1346 | { | |
97aff369 | 1347 | dVAR; |
740cce10 NC |
1348 | SV * const sv = newSVpvn_utf8(start, len, |
1349 | UTF && !IN_BYTES | |
1350 | && is_utf8_string((const U8*)start, len)); | |
d0a148a6 NC |
1351 | return sv; |
1352 | } | |
1353 | ||
ffb4593c NT |
1354 | /* |
1355 | * S_force_word | |
1356 | * When the lexer knows the next thing is a word (for instance, it has | |
1357 | * just seen -> and it knows that the next char is a word char, then | |
02b34bbe DM |
1358 | * it calls S_force_word to stick the next word into the PL_nexttoke/val |
1359 | * lookahead. | |
ffb4593c NT |
1360 | * |
1361 | * Arguments: | |
b1b65b59 | 1362 | * char *start : buffer position (must be within PL_linestr) |
02b34bbe | 1363 | * int token : PL_next* will be this type of bare word (e.g., METHOD,WORD) |
ffb4593c NT |
1364 | * int check_keyword : if true, Perl checks to make sure the word isn't |
1365 | * a keyword (do this if the word is a label, e.g. goto FOO) | |
1366 | * int allow_pack : if true, : characters will also be allowed (require, | |
1367 | * use, etc. do this) | |
9cbb5ea2 | 1368 | * int allow_initial_tick : used by the "sub" lexer only. |
ffb4593c NT |
1369 | */ |
1370 | ||
76e3520e | 1371 | STATIC char * |
cea2e8a9 | 1372 | S_force_word(pTHX_ register char *start, int token, int check_keyword, int allow_pack, int allow_initial_tick) |
79072805 | 1373 | { |
97aff369 | 1374 | dVAR; |
463ee0b2 LW |
1375 | register char *s; |
1376 | STRLEN len; | |
4e553d73 | 1377 | |
29595ff2 | 1378 | start = SKIPSPACE1(start); |
463ee0b2 | 1379 | s = start; |
7e2040f0 | 1380 | if (isIDFIRST_lazy_if(s,UTF) || |
a0d0e21e | 1381 | (allow_pack && *s == ':') || |
15f0808c | 1382 | (allow_initial_tick && *s == '\'') ) |
a0d0e21e | 1383 | { |
3280af22 | 1384 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, allow_pack, &len); |
5458a98a | 1385 | if (check_keyword && keyword(PL_tokenbuf, len, 0)) |
463ee0b2 | 1386 | return start; |
cd81e915 | 1387 | start_force(PL_curforce); |
5db06880 NC |
1388 | if (PL_madskills) |
1389 | curmad('X', newSVpvn(start,s-start)); | |
463ee0b2 | 1390 | if (token == METHOD) { |
29595ff2 | 1391 | s = SKIPSPACE1(s); |
463ee0b2 | 1392 | if (*s == '(') |
3280af22 | 1393 | PL_expect = XTERM; |
463ee0b2 | 1394 | else { |
3280af22 | 1395 | PL_expect = XOPERATOR; |
463ee0b2 | 1396 | } |
79072805 | 1397 | } |
e74e6b3d | 1398 | if (PL_madskills) |
63575281 | 1399 | curmad('g', newSVpvs( "forced" )); |
9ded7720 | 1400 | NEXTVAL_NEXTTOKE.opval |
d0a148a6 NC |
1401 | = (OP*)newSVOP(OP_CONST,0, |
1402 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
9ded7720 | 1403 | NEXTVAL_NEXTTOKE.opval->op_private |= OPpCONST_BARE; |
79072805 LW |
1404 | force_next(token); |
1405 | } | |
1406 | return s; | |
1407 | } | |
1408 | ||
ffb4593c NT |
1409 | /* |
1410 | * S_force_ident | |
9cbb5ea2 | 1411 | * Called when the lexer wants $foo *foo &foo etc, but the program |
ffb4593c NT |
1412 | * text only contains the "foo" portion. The first argument is a pointer |
1413 | * to the "foo", and the second argument is the type symbol to prefix. | |
1414 | * Forces the next token to be a "WORD". | |
9cbb5ea2 | 1415 | * Creates the symbol if it didn't already exist (via gv_fetchpv()). |
ffb4593c NT |
1416 | */ |
1417 | ||
76e3520e | 1418 | STATIC void |
bfed75c6 | 1419 | S_force_ident(pTHX_ register const char *s, int kind) |
79072805 | 1420 | { |
97aff369 | 1421 | dVAR; |
c35e046a | 1422 | if (*s) { |
90e5519e NC |
1423 | const STRLEN len = strlen(s); |
1424 | OP* const o = (OP*)newSVOP(OP_CONST, 0, newSVpvn(s, len)); | |
cd81e915 | 1425 | start_force(PL_curforce); |
9ded7720 | 1426 | NEXTVAL_NEXTTOKE.opval = o; |
79072805 | 1427 | force_next(WORD); |
748a9306 | 1428 | if (kind) { |
11343788 | 1429 | o->op_private = OPpCONST_ENTERED; |
55497cff | 1430 | /* XXX see note in pp_entereval() for why we forgo typo |
1431 | warnings if the symbol must be introduced in an eval. | |
1432 | GSAR 96-10-12 */ | |
90e5519e NC |
1433 | gv_fetchpvn_flags(s, len, |
1434 | PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) | |
1435 | : GV_ADD, | |
1436 | kind == '$' ? SVt_PV : | |
1437 | kind == '@' ? SVt_PVAV : | |
1438 | kind == '%' ? SVt_PVHV : | |
a0d0e21e | 1439 | SVt_PVGV |
90e5519e | 1440 | ); |
748a9306 | 1441 | } |
79072805 LW |
1442 | } |
1443 | } | |
1444 | ||
1571675a GS |
1445 | NV |
1446 | Perl_str_to_version(pTHX_ SV *sv) | |
1447 | { | |
1448 | NV retval = 0.0; | |
1449 | NV nshift = 1.0; | |
1450 | STRLEN len; | |
cfd0369c | 1451 | const char *start = SvPV_const(sv,len); |
9d4ba2ae | 1452 | const char * const end = start + len; |
504618e9 | 1453 | const bool utf = SvUTF8(sv) ? TRUE : FALSE; |
1571675a | 1454 | while (start < end) { |
ba210ebe | 1455 | STRLEN skip; |
1571675a GS |
1456 | UV n; |
1457 | if (utf) | |
9041c2e3 | 1458 | n = utf8n_to_uvchr((U8*)start, len, &skip, 0); |
1571675a GS |
1459 | else { |
1460 | n = *(U8*)start; | |
1461 | skip = 1; | |
1462 | } | |
1463 | retval += ((NV)n)/nshift; | |
1464 | start += skip; | |
1465 | nshift *= 1000; | |
1466 | } | |
1467 | return retval; | |
1468 | } | |
1469 | ||
4e553d73 | 1470 | /* |
ffb4593c NT |
1471 | * S_force_version |
1472 | * Forces the next token to be a version number. | |
e759cc13 RGS |
1473 | * If the next token appears to be an invalid version number, (e.g. "v2b"), |
1474 | * and if "guessing" is TRUE, then no new token is created (and the caller | |
1475 | * must use an alternative parsing method). | |
ffb4593c NT |
1476 | */ |
1477 | ||
76e3520e | 1478 | STATIC char * |
e759cc13 | 1479 | S_force_version(pTHX_ char *s, int guessing) |
89bfa8cd | 1480 | { |
97aff369 | 1481 | dVAR; |
5f66b61c | 1482 | OP *version = NULL; |
44dcb63b | 1483 | char *d; |
5db06880 NC |
1484 | #ifdef PERL_MAD |
1485 | I32 startoff = s - SvPVX(PL_linestr); | |
1486 | #endif | |
89bfa8cd | 1487 | |
29595ff2 | 1488 | s = SKIPSPACE1(s); |
89bfa8cd | 1489 | |
44dcb63b | 1490 | d = s; |
dd629d5b | 1491 | if (*d == 'v') |
44dcb63b | 1492 | d++; |
44dcb63b | 1493 | if (isDIGIT(*d)) { |
e759cc13 RGS |
1494 | while (isDIGIT(*d) || *d == '_' || *d == '.') |
1495 | d++; | |
5db06880 NC |
1496 | #ifdef PERL_MAD |
1497 | if (PL_madskills) { | |
cd81e915 | 1498 | start_force(PL_curforce); |
5db06880 NC |
1499 | curmad('X', newSVpvn(s,d-s)); |
1500 | } | |
1501 | #endif | |
9f3d182e | 1502 | if (*d == ';' || isSPACE(*d) || *d == '}' || !*d) { |
dd629d5b | 1503 | SV *ver; |
6154021b RGS |
1504 | s = scan_num(s, &pl_yylval); |
1505 | version = pl_yylval.opval; | |
dd629d5b GS |
1506 | ver = cSVOPx(version)->op_sv; |
1507 | if (SvPOK(ver) && !SvNIOK(ver)) { | |
862a34c6 | 1508 | SvUPGRADE(ver, SVt_PVNV); |
9d6ce603 | 1509 | SvNV_set(ver, str_to_version(ver)); |
1571675a | 1510 | SvNOK_on(ver); /* hint that it is a version */ |
44dcb63b | 1511 | } |
89bfa8cd | 1512 | } |
5db06880 NC |
1513 | else if (guessing) { |
1514 | #ifdef PERL_MAD | |
1515 | if (PL_madskills) { | |
cd81e915 NC |
1516 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1517 | PL_nextwhite = 0; | |
5db06880 NC |
1518 | s = SvPVX(PL_linestr) + startoff; |
1519 | } | |
1520 | #endif | |
e759cc13 | 1521 | return s; |
5db06880 | 1522 | } |
89bfa8cd | 1523 | } |
1524 | ||
5db06880 NC |
1525 | #ifdef PERL_MAD |
1526 | if (PL_madskills && !version) { | |
cd81e915 NC |
1527 | sv_free(PL_nextwhite); /* let next token collect whitespace */ |
1528 | PL_nextwhite = 0; | |
5db06880 NC |
1529 | s = SvPVX(PL_linestr) + startoff; |
1530 | } | |
1531 | #endif | |
89bfa8cd | 1532 | /* NOTE: The parser sees the package name and the VERSION swapped */ |
cd81e915 | 1533 | start_force(PL_curforce); |
9ded7720 | 1534 | NEXTVAL_NEXTTOKE.opval = version; |
4e553d73 | 1535 | force_next(WORD); |
89bfa8cd | 1536 | |
e759cc13 | 1537 | return s; |
89bfa8cd | 1538 | } |
1539 | ||
ffb4593c NT |
1540 | /* |
1541 | * S_tokeq | |
1542 | * Tokenize a quoted string passed in as an SV. It finds the next | |
1543 | * chunk, up to end of string or a backslash. It may make a new | |
1544 | * SV containing that chunk (if HINT_NEW_STRING is on). It also | |
1545 | * turns \\ into \. | |
1546 | */ | |
1547 | ||
76e3520e | 1548 | STATIC SV * |
cea2e8a9 | 1549 | S_tokeq(pTHX_ SV *sv) |
79072805 | 1550 | { |
97aff369 | 1551 | dVAR; |
79072805 LW |
1552 | register char *s; |
1553 | register char *send; | |
1554 | register char *d; | |
b3ac6de7 IZ |
1555 | STRLEN len = 0; |
1556 | SV *pv = sv; | |
79072805 LW |
1557 | |
1558 | if (!SvLEN(sv)) | |
b3ac6de7 | 1559 | goto finish; |
79072805 | 1560 | |
a0d0e21e | 1561 | s = SvPV_force(sv, len); |
21a311ee | 1562 | if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) |
b3ac6de7 | 1563 | goto finish; |
463ee0b2 | 1564 | send = s + len; |
79072805 LW |
1565 | while (s < send && *s != '\\') |
1566 | s++; | |
1567 | if (s == send) | |
b3ac6de7 | 1568 | goto finish; |
79072805 | 1569 | d = s; |
be4731d2 | 1570 | if ( PL_hints & HINT_NEW_STRING ) { |
59cd0e26 | 1571 | pv = newSVpvn_flags(SvPVX_const(pv), len, SVs_TEMP | SvUTF8(sv)); |
be4731d2 | 1572 | } |
79072805 LW |
1573 | while (s < send) { |
1574 | if (*s == '\\') { | |
a0d0e21e | 1575 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
1576 | s++; /* all that, just for this */ |
1577 | } | |
1578 | *d++ = *s++; | |
1579 | } | |
1580 | *d = '\0'; | |
95a20fc0 | 1581 | SvCUR_set(sv, d - SvPVX_const(sv)); |
b3ac6de7 | 1582 | finish: |
3280af22 | 1583 | if ( PL_hints & HINT_NEW_STRING ) |
eb0d8d16 | 1584 | return new_constant(NULL, 0, "q", sv, pv, "q", 1); |
79072805 LW |
1585 | return sv; |
1586 | } | |
1587 | ||
ffb4593c NT |
1588 | /* |
1589 | * Now come three functions related to double-quote context, | |
1590 | * S_sublex_start, S_sublex_push, and S_sublex_done. They're used when | |
1591 | * converting things like "\u\Lgnat" into ucfirst(lc("gnat")). They | |
1592 | * interact with PL_lex_state, and create fake ( ... ) argument lists | |
1593 | * to handle functions and concatenation. | |
1594 | * They assume that whoever calls them will be setting up a fake | |
1595 | * join call, because each subthing puts a ',' after it. This lets | |
1596 | * "lower \luPpEr" | |
1597 | * become | |
1598 | * join($, , 'lower ', lcfirst( 'uPpEr', ) ,) | |
1599 | * | |
1600 | * (I'm not sure whether the spurious commas at the end of lcfirst's | |
1601 | * arguments and join's arguments are created or not). | |
1602 | */ | |
1603 | ||
1604 | /* | |
1605 | * S_sublex_start | |
6154021b | 1606 | * Assumes that pl_yylval.ival is the op we're creating (e.g. OP_LCFIRST). |
ffb4593c NT |
1607 | * |
1608 | * Pattern matching will set PL_lex_op to the pattern-matching op to | |
6154021b | 1609 | * make (we return THING if pl_yylval.ival is OP_NULL, PMFUNC otherwise). |
ffb4593c NT |
1610 | * |
1611 | * OP_CONST and OP_READLINE are easy--just make the new op and return. | |
1612 | * | |
1613 | * Everything else becomes a FUNC. | |
1614 | * | |
1615 | * Sets PL_lex_state to LEX_INTERPPUSH unless (ival was OP_NULL or we | |
1616 | * had an OP_CONST or OP_READLINE). This just sets us up for a | |
1617 | * call to S_sublex_push(). | |
1618 | */ | |
1619 | ||
76e3520e | 1620 | STATIC I32 |
cea2e8a9 | 1621 | S_sublex_start(pTHX) |
79072805 | 1622 | { |
97aff369 | 1623 | dVAR; |
6154021b | 1624 | register const I32 op_type = pl_yylval.ival; |
79072805 LW |
1625 | |
1626 | if (op_type == OP_NULL) { | |
6154021b | 1627 | pl_yylval.opval = PL_lex_op; |
5f66b61c | 1628 | PL_lex_op = NULL; |
79072805 LW |
1629 | return THING; |
1630 | } | |
1631 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
3280af22 | 1632 | SV *sv = tokeq(PL_lex_stuff); |
b3ac6de7 IZ |
1633 | |
1634 | if (SvTYPE(sv) == SVt_PVIV) { | |
1635 | /* Overloaded constants, nothing fancy: Convert to SVt_PV: */ | |
1636 | STRLEN len; | |
96a5add6 | 1637 | const char * const p = SvPV_const(sv, len); |
740cce10 | 1638 | SV * const nsv = newSVpvn_flags(p, len, SvUTF8(sv)); |
b3ac6de7 IZ |
1639 | SvREFCNT_dec(sv); |
1640 | sv = nsv; | |
4e553d73 | 1641 | } |
6154021b | 1642 | pl_yylval.opval = (OP*)newSVOP(op_type, 0, sv); |
a0714e2c | 1643 | PL_lex_stuff = NULL; |
6f33ba73 RGS |
1644 | /* Allow <FH> // "foo" */ |
1645 | if (op_type == OP_READLINE) | |
1646 | PL_expect = XTERMORDORDOR; | |
79072805 LW |
1647 | return THING; |
1648 | } | |
e3f73d4e RGS |
1649 | else if (op_type == OP_BACKTICK && PL_lex_op) { |
1650 | /* readpipe() vas overriden */ | |
1651 | cSVOPx(cLISTOPx(cUNOPx(PL_lex_op)->op_first)->op_first->op_sibling)->op_sv = tokeq(PL_lex_stuff); | |
6154021b | 1652 | pl_yylval.opval = PL_lex_op; |
9b201d7d | 1653 | PL_lex_op = NULL; |
e3f73d4e RGS |
1654 | PL_lex_stuff = NULL; |
1655 | return THING; | |
1656 | } | |
79072805 | 1657 | |
3280af22 | 1658 | PL_sublex_info.super_state = PL_lex_state; |
eac04b2e | 1659 | PL_sublex_info.sub_inwhat = (U16)op_type; |
3280af22 NIS |
1660 | PL_sublex_info.sub_op = PL_lex_op; |
1661 | PL_lex_state = LEX_INTERPPUSH; | |
55497cff | 1662 | |
3280af22 NIS |
1663 | PL_expect = XTERM; |
1664 | if (PL_lex_op) { | |
6154021b | 1665 | pl_yylval.opval = PL_lex_op; |
5f66b61c | 1666 | PL_lex_op = NULL; |
55497cff | 1667 | return PMFUNC; |
1668 | } | |
1669 | else | |
1670 | return FUNC; | |
1671 | } | |
1672 | ||
ffb4593c NT |
1673 | /* |
1674 | * S_sublex_push | |
1675 | * Create a new scope to save the lexing state. The scope will be | |
1676 | * ended in S_sublex_done. Returns a '(', starting the function arguments | |
1677 | * to the uc, lc, etc. found before. | |
1678 | * Sets PL_lex_state to LEX_INTERPCONCAT. | |
1679 | */ | |
1680 | ||
76e3520e | 1681 | STATIC I32 |
cea2e8a9 | 1682 | S_sublex_push(pTHX) |
55497cff | 1683 | { |
27da23d5 | 1684 | dVAR; |
f46d017c | 1685 | ENTER; |
55497cff | 1686 | |
3280af22 | 1687 | PL_lex_state = PL_sublex_info.super_state; |
651b5b28 | 1688 | SAVEBOOL(PL_lex_dojoin); |
3280af22 | 1689 | SAVEI32(PL_lex_brackets); |
3280af22 NIS |
1690 | SAVEI32(PL_lex_casemods); |
1691 | SAVEI32(PL_lex_starts); | |
651b5b28 | 1692 | SAVEI8(PL_lex_state); |
7766f137 | 1693 | SAVEVPTR(PL_lex_inpat); |
98246f1e | 1694 | SAVEI16(PL_lex_inwhat); |
57843af0 | 1695 | SAVECOPLINE(PL_curcop); |
3280af22 | 1696 | SAVEPPTR(PL_bufptr); |
8452ff4b | 1697 | SAVEPPTR(PL_bufend); |
3280af22 NIS |
1698 | SAVEPPTR(PL_oldbufptr); |
1699 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
1700 | SAVEPPTR(PL_last_lop); |
1701 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
1702 | SAVEPPTR(PL_linestart); |
1703 | SAVESPTR(PL_linestr); | |
8edd5f42 RGS |
1704 | SAVEGENERICPV(PL_lex_brackstack); |
1705 | SAVEGENERICPV(PL_lex_casestack); | |
3280af22 NIS |
1706 | |
1707 | PL_linestr = PL_lex_stuff; | |
a0714e2c | 1708 | PL_lex_stuff = NULL; |
3280af22 | 1709 | |
9cbb5ea2 GS |
1710 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart |
1711 | = SvPVX(PL_linestr); | |
3280af22 | 1712 | PL_bufend += SvCUR(PL_linestr); |
bd61b366 | 1713 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1714 | SAVEFREESV(PL_linestr); |
1715 | ||
1716 | PL_lex_dojoin = FALSE; | |
1717 | PL_lex_brackets = 0; | |
a02a5408 JC |
1718 | Newx(PL_lex_brackstack, 120, char); |
1719 | Newx(PL_lex_casestack, 12, char); | |
3280af22 NIS |
1720 | PL_lex_casemods = 0; |
1721 | *PL_lex_casestack = '\0'; | |
1722 | PL_lex_starts = 0; | |
1723 | PL_lex_state = LEX_INTERPCONCAT; | |
eb160463 | 1724 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 NIS |
1725 | |
1726 | PL_lex_inwhat = PL_sublex_info.sub_inwhat; | |
1727 | if (PL_lex_inwhat == OP_MATCH || PL_lex_inwhat == OP_QR || PL_lex_inwhat == OP_SUBST) | |
1728 | PL_lex_inpat = PL_sublex_info.sub_op; | |
79072805 | 1729 | else |
5f66b61c | 1730 | PL_lex_inpat = NULL; |
79072805 | 1731 | |
55497cff | 1732 | return '('; |
79072805 LW |
1733 | } |
1734 | ||
ffb4593c NT |
1735 | /* |
1736 | * S_sublex_done | |
1737 | * Restores lexer state after a S_sublex_push. | |
1738 | */ | |
1739 | ||
76e3520e | 1740 | STATIC I32 |
cea2e8a9 | 1741 | S_sublex_done(pTHX) |
79072805 | 1742 | { |
27da23d5 | 1743 | dVAR; |
3280af22 | 1744 | if (!PL_lex_starts++) { |
396482e1 | 1745 | SV * const sv = newSVpvs(""); |
9aa983d2 JH |
1746 | if (SvUTF8(PL_linestr)) |
1747 | SvUTF8_on(sv); | |
3280af22 | 1748 | PL_expect = XOPERATOR; |
6154021b | 1749 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
79072805 LW |
1750 | return THING; |
1751 | } | |
1752 | ||
3280af22 NIS |
1753 | if (PL_lex_casemods) { /* oops, we've got some unbalanced parens */ |
1754 | PL_lex_state = LEX_INTERPCASEMOD; | |
cea2e8a9 | 1755 | return yylex(); |
79072805 LW |
1756 | } |
1757 | ||
ffb4593c | 1758 | /* Is there a right-hand side to take care of? (s//RHS/ or tr//RHS/) */ |
3280af22 NIS |
1759 | if (PL_lex_repl && (PL_lex_inwhat == OP_SUBST || PL_lex_inwhat == OP_TRANS)) { |
1760 | PL_linestr = PL_lex_repl; | |
1761 | PL_lex_inpat = 0; | |
1762 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
1763 | PL_bufend += SvCUR(PL_linestr); | |
bd61b366 | 1764 | PL_last_lop = PL_last_uni = NULL; |
3280af22 NIS |
1765 | SAVEFREESV(PL_linestr); |
1766 | PL_lex_dojoin = FALSE; | |
1767 | PL_lex_brackets = 0; | |
3280af22 NIS |
1768 | PL_lex_casemods = 0; |
1769 | *PL_lex_casestack = '\0'; | |
1770 | PL_lex_starts = 0; | |
25da4f38 | 1771 | if (SvEVALED(PL_lex_repl)) { |
3280af22 NIS |
1772 | PL_lex_state = LEX_INTERPNORMAL; |
1773 | PL_lex_starts++; | |
e9fa98b2 HS |
1774 | /* we don't clear PL_lex_repl here, so that we can check later |
1775 | whether this is an evalled subst; that means we rely on the | |
1776 | logic to ensure sublex_done() is called again only via the | |
1777 | branch (in yylex()) that clears PL_lex_repl, else we'll loop */ | |
79072805 | 1778 | } |
e9fa98b2 | 1779 | else { |
3280af22 | 1780 | PL_lex_state = LEX_INTERPCONCAT; |
a0714e2c | 1781 | PL_lex_repl = NULL; |
e9fa98b2 | 1782 | } |
79072805 | 1783 | return ','; |
ffed7fef LW |
1784 | } |
1785 | else { | |
5db06880 NC |
1786 | #ifdef PERL_MAD |
1787 | if (PL_madskills) { | |
cd81e915 NC |
1788 | if (PL_thiswhite) { |
1789 | if (!PL_endwhite) | |
6b29d1f5 | 1790 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
1791 | sv_catsv(PL_endwhite, PL_thiswhite); |
1792 | PL_thiswhite = 0; | |
1793 | } | |
1794 | if (PL_thistoken) | |
1795 | sv_setpvn(PL_thistoken,"",0); | |
5db06880 | 1796 | else |
cd81e915 | 1797 | PL_realtokenstart = -1; |
5db06880 NC |
1798 | } |
1799 | #endif | |
f46d017c | 1800 | LEAVE; |
3280af22 NIS |
1801 | PL_bufend = SvPVX(PL_linestr); |
1802 | PL_bufend += SvCUR(PL_linestr); | |
1803 | PL_expect = XOPERATOR; | |
09bef843 | 1804 | PL_sublex_info.sub_inwhat = 0; |
79072805 | 1805 | return ')'; |
ffed7fef LW |
1806 | } |
1807 | } | |
1808 | ||
02aa26ce NT |
1809 | /* |
1810 | scan_const | |
1811 | ||
1812 | Extracts a pattern, double-quoted string, or transliteration. This | |
1813 | is terrifying code. | |
1814 | ||
94def140 | 1815 | It looks at PL_lex_inwhat and PL_lex_inpat to find out whether it's |
3280af22 | 1816 | processing a pattern (PL_lex_inpat is true), a transliteration |
94def140 | 1817 | (PL_lex_inwhat == OP_TRANS is true), or a double-quoted string. |
02aa26ce | 1818 | |
94def140 TS |
1819 | Returns a pointer to the character scanned up to. If this is |
1820 | advanced from the start pointer supplied (i.e. if anything was | |
9b599b2a | 1821 | successfully parsed), will leave an OP for the substring scanned |
6154021b | 1822 | in pl_yylval. Caller must intuit reason for not parsing further |
9b599b2a GS |
1823 | by looking at the next characters herself. |
1824 | ||
02aa26ce NT |
1825 | In patterns: |
1826 | backslashes: | |
1827 | double-quoted style: \r and \n | |
1828 | regexp special ones: \D \s | |
94def140 TS |
1829 | constants: \x31 |
1830 | backrefs: \1 | |
02aa26ce NT |
1831 | case and quoting: \U \Q \E |
1832 | stops on @ and $, but not for $ as tail anchor | |
1833 | ||
1834 | In transliterations: | |
1835 | characters are VERY literal, except for - not at the start or end | |
94def140 TS |
1836 | of the string, which indicates a range. If the range is in bytes, |
1837 | scan_const expands the range to the full set of intermediate | |
1838 | characters. If the range is in utf8, the hyphen is replaced with | |
1839 | a certain range mark which will be handled by pmtrans() in op.c. | |
02aa26ce NT |
1840 | |
1841 | In double-quoted strings: | |
1842 | backslashes: | |
1843 | double-quoted style: \r and \n | |
94def140 TS |
1844 | constants: \x31 |
1845 | deprecated backrefs: \1 (in substitution replacements) | |
02aa26ce NT |
1846 | case and quoting: \U \Q \E |
1847 | stops on @ and $ | |
1848 | ||
1849 | scan_const does *not* construct ops to handle interpolated strings. | |
1850 | It stops processing as soon as it finds an embedded $ or @ variable | |
1851 | and leaves it to the caller to work out what's going on. | |
1852 | ||
94def140 TS |
1853 | embedded arrays (whether in pattern or not) could be: |
1854 | @foo, @::foo, @'foo, @{foo}, @$foo, @+, @-. | |
1855 | ||
1856 | $ in double-quoted strings must be the symbol of an embedded scalar. | |
02aa26ce NT |
1857 | |
1858 | $ in pattern could be $foo or could be tail anchor. Assumption: | |
1859 | it's a tail anchor if $ is the last thing in the string, or if it's | |
94def140 | 1860 | followed by one of "()| \r\n\t" |
02aa26ce NT |
1861 | |
1862 | \1 (backreferences) are turned into $1 | |
1863 | ||
1864 | The structure of the code is | |
1865 | while (there's a character to process) { | |
94def140 TS |
1866 | handle transliteration ranges |
1867 | skip regexp comments /(?#comment)/ and codes /(?{code})/ | |
1868 | skip #-initiated comments in //x patterns | |
1869 | check for embedded arrays | |
02aa26ce NT |
1870 | check for embedded scalars |
1871 | if (backslash) { | |
94def140 TS |
1872 | leave intact backslashes from leaveit (below) |
1873 | deprecate \1 in substitution replacements | |
02aa26ce NT |
1874 | handle string-changing backslashes \l \U \Q \E, etc. |
1875 | switch (what was escaped) { | |
94def140 TS |
1876 | handle \- in a transliteration (becomes a literal -) |
1877 | handle \132 (octal characters) | |
1878 | handle \x15 and \x{1234} (hex characters) | |
1879 | handle \N{name} (named characters) | |
1880 | handle \cV (control characters) | |
1881 | handle printf-style backslashes (\f, \r, \n, etc) | |
02aa26ce NT |
1882 | } (end switch) |
1883 | } (end if backslash) | |
1884 | } (end while character to read) | |
4e553d73 | 1885 | |
02aa26ce NT |
1886 | */ |
1887 | ||
76e3520e | 1888 | STATIC char * |
cea2e8a9 | 1889 | S_scan_const(pTHX_ char *start) |
79072805 | 1890 | { |
97aff369 | 1891 | dVAR; |
3280af22 | 1892 | register char *send = PL_bufend; /* end of the constant */ |
561b68a9 | 1893 | SV *sv = newSV(send - start); /* sv for the constant */ |
02aa26ce NT |
1894 | register char *s = start; /* start of the constant */ |
1895 | register char *d = SvPVX(sv); /* destination for copies */ | |
1896 | bool dorange = FALSE; /* are we in a translit range? */ | |
c2e66d9e | 1897 | bool didrange = FALSE; /* did we just finish a range? */ |
2b9d42f0 NIS |
1898 | I32 has_utf8 = FALSE; /* Output constant is UTF8 */ |
1899 | I32 this_utf8 = UTF; /* The source string is assumed to be UTF8 */ | |
012bcf8d | 1900 | UV uv; |
4c3a8340 TS |
1901 | #ifdef EBCDIC |
1902 | UV literal_endpoint = 0; | |
e294cc5d | 1903 | bool native_range = TRUE; /* turned to FALSE if the first endpoint is Unicode. */ |
4c3a8340 | 1904 | #endif |
012bcf8d | 1905 | |
2b9d42f0 NIS |
1906 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
1907 | /* If we are doing a trans and we know we want UTF8 set expectation */ | |
1908 | has_utf8 = PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF); | |
1909 | this_utf8 = PL_sublex_info.sub_op->op_private & (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
1910 | } | |
1911 | ||
1912 | ||
79072805 | 1913 | while (s < send || dorange) { |
02aa26ce | 1914 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 1915 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 1916 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 1917 | if (dorange) { |
1ba5c669 JH |
1918 | I32 i; /* current expanded character */ |
1919 | I32 min; /* first character in range */ | |
1920 | I32 max; /* last character in range */ | |
02aa26ce | 1921 | |
e294cc5d JH |
1922 | #ifdef EBCDIC |
1923 | UV uvmax = 0; | |
1924 | #endif | |
1925 | ||
1926 | if (has_utf8 | |
1927 | #ifdef EBCDIC | |
1928 | && !native_range | |
1929 | #endif | |
1930 | ) { | |
9d4ba2ae | 1931 | char * const c = (char*)utf8_hop((U8*)d, -1); |
8973db79 JH |
1932 | char *e = d++; |
1933 | while (e-- > c) | |
1934 | *(e + 1) = *e; | |
25716404 | 1935 | *c = (char)UTF_TO_NATIVE(0xff); |
8973db79 JH |
1936 | /* mark the range as done, and continue */ |
1937 | dorange = FALSE; | |
1938 | didrange = TRUE; | |
1939 | continue; | |
1940 | } | |
2b9d42f0 | 1941 | |
95a20fc0 | 1942 | i = d - SvPVX_const(sv); /* remember current offset */ |
e294cc5d JH |
1943 | #ifdef EBCDIC |
1944 | SvGROW(sv, | |
1945 | SvLEN(sv) + (has_utf8 ? | |
1946 | (512 - UTF_CONTINUATION_MARK + | |
1947 | UNISKIP(0x100)) | |
1948 | : 256)); | |
1949 | /* How many two-byte within 0..255: 128 in UTF-8, | |
1950 | * 96 in UTF-8-mod. */ | |
1951 | #else | |
9cbb5ea2 | 1952 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
e294cc5d | 1953 | #endif |
9cbb5ea2 | 1954 | d = SvPVX(sv) + i; /* refresh d after realloc */ |
e294cc5d JH |
1955 | #ifdef EBCDIC |
1956 | if (has_utf8) { | |
1957 | int j; | |
1958 | for (j = 0; j <= 1; j++) { | |
1959 | char * const c = (char*)utf8_hop((U8*)d, -1); | |
1960 | const UV uv = utf8n_to_uvchr((U8*)c, d - c, NULL, 0); | |
1961 | if (j) | |
1962 | min = (U8)uv; | |
1963 | else if (uv < 256) | |
1964 | max = (U8)uv; | |
1965 | else { | |
1966 | max = (U8)0xff; /* only to \xff */ | |
1967 | uvmax = uv; /* \x{100} to uvmax */ | |
1968 | } | |
1969 | d = c; /* eat endpoint chars */ | |
1970 | } | |
1971 | } | |
1972 | else { | |
1973 | #endif | |
1974 | d -= 2; /* eat the first char and the - */ | |
1975 | min = (U8)*d; /* first char in range */ | |
1976 | max = (U8)d[1]; /* last char in range */ | |
1977 | #ifdef EBCDIC | |
1978 | } | |
1979 | #endif | |
8ada0baa | 1980 | |
c2e66d9e | 1981 | if (min > max) { |
01ec43d0 | 1982 | Perl_croak(aTHX_ |
d1573ac7 | 1983 | "Invalid range \"%c-%c\" in transliteration operator", |
1ba5c669 | 1984 | (char)min, (char)max); |
c2e66d9e GS |
1985 | } |
1986 | ||
c7f1f016 | 1987 | #ifdef EBCDIC |
4c3a8340 TS |
1988 | if (literal_endpoint == 2 && |
1989 | ((isLOWER(min) && isLOWER(max)) || | |
1990 | (isUPPER(min) && isUPPER(max)))) { | |
8ada0baa JH |
1991 | if (isLOWER(min)) { |
1992 | for (i = min; i <= max; i++) | |
1993 | if (isLOWER(i)) | |
db42d148 | 1994 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1995 | } else { |
1996 | for (i = min; i <= max; i++) | |
1997 | if (isUPPER(i)) | |
db42d148 | 1998 | *d++ = NATIVE_TO_NEED(has_utf8,i); |
8ada0baa JH |
1999 | } |
2000 | } | |
2001 | else | |
2002 | #endif | |
2003 | for (i = min; i <= max; i++) | |
e294cc5d JH |
2004 | #ifdef EBCDIC |
2005 | if (has_utf8) { | |
2006 | const U8 ch = (U8)NATIVE_TO_UTF(i); | |
2007 | if (UNI_IS_INVARIANT(ch)) | |
2008 | *d++ = (U8)i; | |
2009 | else { | |
2010 | *d++ = (U8)UTF8_EIGHT_BIT_HI(ch); | |
2011 | *d++ = (U8)UTF8_EIGHT_BIT_LO(ch); | |
2012 | } | |
2013 | } | |
2014 | else | |
2015 | #endif | |
2016 | *d++ = (char)i; | |
2017 | ||
2018 | #ifdef EBCDIC | |
2019 | if (uvmax) { | |
2020 | d = (char*)uvchr_to_utf8((U8*)d, 0x100); | |
2021 | if (uvmax > 0x101) | |
2022 | *d++ = (char)UTF_TO_NATIVE(0xff); | |
2023 | if (uvmax > 0x100) | |
2024 | d = (char*)uvchr_to_utf8((U8*)d, uvmax); | |
2025 | } | |
2026 | #endif | |
02aa26ce NT |
2027 | |
2028 | /* mark the range as done, and continue */ | |
79072805 | 2029 | dorange = FALSE; |
01ec43d0 | 2030 | didrange = TRUE; |
4c3a8340 TS |
2031 | #ifdef EBCDIC |
2032 | literal_endpoint = 0; | |
2033 | #endif | |
79072805 | 2034 | continue; |
4e553d73 | 2035 | } |
02aa26ce NT |
2036 | |
2037 | /* range begins (ignore - as first or last char) */ | |
79072805 | 2038 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 2039 | if (didrange) { |
1fafa243 | 2040 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 2041 | } |
e294cc5d JH |
2042 | if (has_utf8 |
2043 | #ifdef EBCDIC | |
2044 | && !native_range | |
2045 | #endif | |
2046 | ) { | |
25716404 | 2047 | *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
2048 | s++; |
2049 | continue; | |
2050 | } | |
79072805 LW |
2051 | dorange = TRUE; |
2052 | s++; | |
01ec43d0 GS |
2053 | } |
2054 | else { | |
2055 | didrange = FALSE; | |
4c3a8340 TS |
2056 | #ifdef EBCDIC |
2057 | literal_endpoint = 0; | |
e294cc5d | 2058 | native_range = TRUE; |
4c3a8340 | 2059 | #endif |
01ec43d0 | 2060 | } |
79072805 | 2061 | } |
02aa26ce NT |
2062 | |
2063 | /* if we get here, we're not doing a transliteration */ | |
2064 | ||
0f5d15d6 IZ |
2065 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
2066 | except for the last char, which will be done separately. */ | |
3280af22 | 2067 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 | 2068 | if (s[2] == '#') { |
e994fd66 | 2069 | while (s+1 < send && *s != ')') |
db42d148 | 2070 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
155aba94 GS |
2071 | } |
2072 | else if (s[2] == '{' /* This should match regcomp.c */ | |
67edc0c9 | 2073 | || (s[2] == '?' && s[3] == '{')) |
155aba94 | 2074 | { |
cc6b7395 | 2075 | I32 count = 1; |
0f5d15d6 | 2076 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
2077 | char c; |
2078 | ||
d9f97599 GS |
2079 | while (count && (c = *regparse)) { |
2080 | if (c == '\\' && regparse[1]) | |
2081 | regparse++; | |
4e553d73 | 2082 | else if (c == '{') |
cc6b7395 | 2083 | count++; |
4e553d73 | 2084 | else if (c == '}') |
cc6b7395 | 2085 | count--; |
d9f97599 | 2086 | regparse++; |
cc6b7395 | 2087 | } |
e994fd66 | 2088 | if (*regparse != ')') |
5bdf89e7 | 2089 | regparse--; /* Leave one char for continuation. */ |
0f5d15d6 | 2090 | while (s < regparse) |
db42d148 | 2091 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
cc6b7395 | 2092 | } |
748a9306 | 2093 | } |
02aa26ce NT |
2094 | |
2095 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
2096 | else if (*s == '#' && PL_lex_inpat && |
2097 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 | 2098 | while (s+1 < send && *s != '\n') |
db42d148 | 2099 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); |
748a9306 | 2100 | } |
02aa26ce | 2101 | |
5d1d4326 | 2102 | /* check for embedded arrays |
da6eedaa | 2103 | (@foo, @::foo, @'foo, @{foo}, @$foo, @+, @-) |
5d1d4326 | 2104 | */ |
1749ea0d TS |
2105 | else if (*s == '@' && s[1]) { |
2106 | if (isALNUM_lazy_if(s+1,UTF)) | |
2107 | break; | |
2108 | if (strchr(":'{$", s[1])) | |
2109 | break; | |
2110 | if (!PL_lex_inpat && (s[1] == '+' || s[1] == '-')) | |
2111 | break; /* in regexp, neither @+ nor @- are interpolated */ | |
2112 | } | |
02aa26ce NT |
2113 | |
2114 | /* check for embedded scalars. only stop if we're sure it's a | |
2115 | variable. | |
2116 | */ | |
79072805 | 2117 | else if (*s == '$') { |
3280af22 | 2118 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 2119 | break; |
6002328a | 2120 | if (s + 1 < send && !strchr("()| \r\n\t", s[1])) |
79072805 LW |
2121 | break; /* in regexp, $ might be tail anchor */ |
2122 | } | |
02aa26ce | 2123 | |
2b9d42f0 NIS |
2124 | /* End of else if chain - OP_TRANS rejoin rest */ |
2125 | ||
02aa26ce | 2126 | /* backslashes */ |
79072805 LW |
2127 | if (*s == '\\' && s+1 < send) { |
2128 | s++; | |
02aa26ce | 2129 | |
02aa26ce | 2130 | /* deprecate \1 in strings and substitution replacements */ |
3280af22 | 2131 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 2132 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 2133 | { |
599cee73 | 2134 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 2135 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s); |
79072805 LW |
2136 | *--s = '$'; |
2137 | break; | |
2138 | } | |
02aa26ce NT |
2139 | |
2140 | /* string-change backslash escapes */ | |
3280af22 | 2141 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
2142 | --s; |
2143 | break; | |
2144 | } | |
cc74c5bd TS |
2145 | /* skip any other backslash escapes in a pattern */ |
2146 | else if (PL_lex_inpat) { | |
2147 | *d++ = NATIVE_TO_NEED(has_utf8,'\\'); | |
2148 | goto default_action; | |
2149 | } | |
02aa26ce NT |
2150 | |
2151 | /* if we get here, it's either a quoted -, or a digit */ | |
79072805 | 2152 | switch (*s) { |
02aa26ce NT |
2153 | |
2154 | /* quoted - in transliterations */ | |
79072805 | 2155 | case '-': |
3280af22 | 2156 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
2157 | *d++ = *s++; |
2158 | continue; | |
2159 | } | |
2160 | /* FALL THROUGH */ | |
2161 | default: | |
11b8faa4 | 2162 | { |
86f97054 | 2163 | if ((isALPHA(*s) || isDIGIT(*s)) && |
041457d9 | 2164 | ckWARN(WARN_MISC)) |
9014280d | 2165 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
e294cc5d JH |
2166 | "Unrecognized escape \\%c passed through", |
2167 | *s); | |
11b8faa4 | 2168 | /* default action is to copy the quoted character */ |
f9a63242 | 2169 | goto default_action; |
11b8faa4 | 2170 | } |
02aa26ce NT |
2171 | |
2172 | /* \132 indicates an octal constant */ | |
79072805 LW |
2173 | case '0': case '1': case '2': case '3': |
2174 | case '4': case '5': case '6': case '7': | |
ba210ebe | 2175 | { |
53305cf1 NC |
2176 | I32 flags = 0; |
2177 | STRLEN len = 3; | |
2178 | uv = grok_oct(s, &len, &flags, NULL); | |
ba210ebe JH |
2179 | s += len; |
2180 | } | |
012bcf8d | 2181 | goto NUM_ESCAPE_INSERT; |
02aa26ce NT |
2182 | |
2183 | /* \x24 indicates a hex constant */ | |
79072805 | 2184 | case 'x': |
a0ed51b3 LW |
2185 | ++s; |
2186 | if (*s == '{') { | |
9d4ba2ae | 2187 | char* const e = strchr(s, '}'); |
a4c04bdc NC |
2188 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | |
2189 | PERL_SCAN_DISALLOW_PREFIX; | |
53305cf1 | 2190 | STRLEN len; |
355860ce | 2191 | |
53305cf1 | 2192 | ++s; |
adaeee49 | 2193 | if (!e) { |
a0ed51b3 | 2194 | yyerror("Missing right brace on \\x{}"); |
355860ce | 2195 | continue; |
ba210ebe | 2196 | } |
53305cf1 NC |
2197 | len = e - s; |
2198 | uv = grok_hex(s, &len, &flags, NULL); | |
ba210ebe | 2199 | s = e + 1; |
a0ed51b3 LW |
2200 | } |
2201 | else { | |
ba210ebe | 2202 | { |
53305cf1 | 2203 | STRLEN len = 2; |
a4c04bdc | 2204 | I32 flags = PERL_SCAN_DISALLOW_PREFIX; |
53305cf1 | 2205 | uv = grok_hex(s, &len, &flags, NULL); |
ba210ebe JH |
2206 | s += len; |
2207 | } | |
012bcf8d GS |
2208 | } |
2209 | ||
2210 | NUM_ESCAPE_INSERT: | |
2211 | /* Insert oct or hex escaped character. | |
301d3d20 | 2212 | * There will always enough room in sv since such |
db42d148 | 2213 | * escapes will be longer than any UTF-8 sequence |
301d3d20 | 2214 | * they can end up as. */ |
ba7cea30 | 2215 | |
c7f1f016 NIS |
2216 | /* We need to map to chars to ASCII before doing the tests |
2217 | to cover EBCDIC | |
2218 | */ | |
c4d5f83a | 2219 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(uv))) { |
9aa983d2 | 2220 | if (!has_utf8 && uv > 255) { |
301d3d20 JH |
2221 | /* Might need to recode whatever we have |
2222 | * accumulated so far if it contains any | |
2223 | * hibit chars. | |
2224 | * | |
2225 | * (Can't we keep track of that and avoid | |
2226 | * this rescan? --jhi) | |
012bcf8d | 2227 | */ |
c7f1f016 | 2228 | int hicount = 0; |
63cd0674 NIS |
2229 | U8 *c; |
2230 | for (c = (U8 *) SvPVX(sv); c < (U8 *)d; c++) { | |
c4d5f83a | 2231 | if (!NATIVE_IS_INVARIANT(*c)) { |
012bcf8d | 2232 | hicount++; |
db42d148 | 2233 | } |
012bcf8d | 2234 | } |
63cd0674 | 2235 | if (hicount) { |
9d4ba2ae | 2236 | const STRLEN offset = d - SvPVX_const(sv); |
db42d148 NIS |
2237 | U8 *src, *dst; |
2238 | d = SvGROW(sv, SvLEN(sv) + hicount + 1) + offset; | |
2239 | src = (U8 *)d - 1; | |
2240 | dst = src+hicount; | |
2241 | d += hicount; | |
cfd0369c | 2242 | while (src >= (const U8 *)SvPVX_const(sv)) { |
c4d5f83a | 2243 | if (!NATIVE_IS_INVARIANT(*src)) { |
9d4ba2ae | 2244 | const U8 ch = NATIVE_TO_ASCII(*src); |
eb160463 GS |
2245 | *dst-- = (U8)UTF8_EIGHT_BIT_LO(ch); |
2246 | *dst-- = (U8)UTF8_EIGHT_BIT_HI(ch); | |
012bcf8d GS |
2247 | } |
2248 | else { | |
63cd0674 | 2249 | *dst-- = *src; |
012bcf8d | 2250 | } |
c7f1f016 | 2251 | src--; |
012bcf8d GS |
2252 | } |
2253 | } | |
2254 | } | |
2255 | ||
9aa983d2 | 2256 | if (has_utf8 || uv > 255) { |
9041c2e3 | 2257 | d = (char*)uvchr_to_utf8((U8*)d, uv); |
4e553d73 | 2258 | has_utf8 = TRUE; |
f9a63242 JH |
2259 | if (PL_lex_inwhat == OP_TRANS && |
2260 | PL_sublex_info.sub_op) { | |
2261 | PL_sublex_info.sub_op->op_private |= | |
2262 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
2263 | : OPpTRANS_TO_UTF); | |
f9a63242 | 2264 | } |
e294cc5d JH |
2265 | #ifdef EBCDIC |
2266 | if (uv > 255 && !dorange) | |
2267 | native_range = FALSE; | |
2268 | #endif | |
012bcf8d | 2269 | } |
a0ed51b3 | 2270 | else { |
012bcf8d | 2271 | *d++ = (char)uv; |
a0ed51b3 | 2272 | } |
012bcf8d GS |
2273 | } |
2274 | else { | |
c4d5f83a | 2275 | *d++ = (char) uv; |
a0ed51b3 | 2276 | } |
79072805 | 2277 | continue; |
02aa26ce | 2278 | |
b239daa5 | 2279 | /* \N{LATIN SMALL LETTER A} is a named character */ |
4a2d328f | 2280 | case 'N': |
55eda711 | 2281 | ++s; |
423cee85 JH |
2282 | if (*s == '{') { |
2283 | char* e = strchr(s, '}'); | |
155aba94 | 2284 | SV *res; |
423cee85 | 2285 | STRLEN len; |
cfd0369c | 2286 | const char *str; |
4e553d73 | 2287 | |
423cee85 | 2288 | if (!e) { |
5777a3f7 | 2289 | yyerror("Missing right brace on \\N{}"); |
423cee85 JH |
2290 | e = s - 1; |
2291 | goto cont_scan; | |
2292 | } | |
dbc0d4f2 JH |
2293 | if (e > s + 2 && s[1] == 'U' && s[2] == '+') { |
2294 | /* \N{U+...} */ | |
2295 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES | | |
2296 | PERL_SCAN_DISALLOW_PREFIX; | |
2297 | s += 3; | |
2298 | len = e - s; | |
2299 | uv = grok_hex(s, &len, &flags, NULL); | |
b57a0404 JH |
2300 | if ( e > s && len != (STRLEN)(e - s) ) { |
2301 | uv = 0xFFFD; | |
fc8cd66c | 2302 | } |
dbc0d4f2 JH |
2303 | s = e + 1; |
2304 | goto NUM_ESCAPE_INSERT; | |
2305 | } | |
55eda711 | 2306 | res = newSVpvn(s + 1, e - s - 1); |
bd61b366 | 2307 | res = new_constant( NULL, 0, "charnames", |
eb0d8d16 | 2308 | res, NULL, s - 2, e - s + 3 ); |
f9a63242 JH |
2309 | if (has_utf8) |
2310 | sv_utf8_upgrade(res); | |
cfd0369c | 2311 | str = SvPV_const(res,len); |
1c47067b JH |
2312 | #ifdef EBCDIC_NEVER_MIND |
2313 | /* charnames uses pack U and that has been | |
2314 | * recently changed to do the below uni->native | |
2315 | * mapping, so this would be redundant (and wrong, | |
2316 | * the code point would be doubly converted). | |
2317 | * But leave this in just in case the pack U change | |
2318 | * gets revoked, but the semantics is still | |
2319 | * desireable for charnames. --jhi */ | |
cddc7ef4 | 2320 | { |
cfd0369c | 2321 | UV uv = utf8_to_uvchr((const U8*)str, 0); |
cddc7ef4 JH |
2322 | |
2323 | if (uv < 0x100) { | |
89ebb4a3 | 2324 | U8 tmpbuf[UTF8_MAXBYTES+1], *d; |
cddc7ef4 JH |
2325 | |
2326 | d = uvchr_to_utf8(tmpbuf, UNI_TO_NATIVE(uv)); | |
2327 | sv_setpvn(res, (char *)tmpbuf, d - tmpbuf); | |
cfd0369c | 2328 | str = SvPV_const(res, len); |
cddc7ef4 JH |
2329 | } |
2330 | } | |
2331 | #endif | |
89491803 | 2332 | if (!has_utf8 && SvUTF8(res)) { |
9d4ba2ae | 2333 | const char * const ostart = SvPVX_const(sv); |
f08d6ad9 GS |
2334 | SvCUR_set(sv, d - ostart); |
2335 | SvPOK_on(sv); | |
e4f3eed8 | 2336 | *d = '\0'; |
f08d6ad9 | 2337 | sv_utf8_upgrade(sv); |
d2f449dd | 2338 | /* this just broke our allocation above... */ |
eb160463 | 2339 | SvGROW(sv, (STRLEN)(send - start)); |
f08d6ad9 | 2340 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 2341 | has_utf8 = TRUE; |
f08d6ad9 | 2342 | } |
eb160463 | 2343 | if (len > (STRLEN)(e - s + 4)) { /* I _guess_ 4 is \N{} --jhi */ |
9d4ba2ae | 2344 | const char * const odest = SvPVX_const(sv); |
423cee85 | 2345 | |
8973db79 | 2346 | SvGROW(sv, (SvLEN(sv) + len - (e - s + 4))); |
423cee85 JH |
2347 | d = SvPVX(sv) + (d - odest); |
2348 | } | |
e294cc5d JH |
2349 | #ifdef EBCDIC |
2350 | if (!dorange) | |
2351 | native_range = FALSE; /* \N{} is guessed to be Unicode */ | |
2352 | #endif | |
423cee85 JH |
2353 | Copy(str, d, len, char); |
2354 | d += len; | |
2355 | SvREFCNT_dec(res); | |
2356 | cont_scan: | |
2357 | s = e + 1; | |
2358 | } | |
2359 | else | |
5777a3f7 | 2360 | yyerror("Missing braces on \\N{}"); |
423cee85 JH |
2361 | continue; |
2362 | ||
02aa26ce | 2363 | /* \c is a control character */ |
79072805 LW |
2364 | case 'c': |
2365 | s++; | |
961ce445 | 2366 | if (s < send) { |
ba210ebe | 2367 | U8 c = *s++; |
c7f1f016 NIS |
2368 | #ifdef EBCDIC |
2369 | if (isLOWER(c)) | |
2370 | c = toUPPER(c); | |
2371 | #endif | |
db42d148 | 2372 | *d++ = NATIVE_TO_NEED(has_utf8,toCTRL(c)); |
ba210ebe | 2373 | } |
961ce445 RGS |
2374 | else { |
2375 | yyerror("Missing control char name in \\c"); | |
2376 | } | |
79072805 | 2377 | continue; |
02aa26ce NT |
2378 | |
2379 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 | 2380 | case 'b': |
db42d148 | 2381 | *d++ = NATIVE_TO_NEED(has_utf8,'\b'); |
79072805 LW |
2382 | break; |
2383 | case 'n': | |
db42d148 | 2384 | *d++ = NATIVE_TO_NEED(has_utf8,'\n'); |
79072805 LW |
2385 | break; |
2386 | case 'r': | |
db42d148 | 2387 | *d++ = NATIVE_TO_NEED(has_utf8,'\r'); |
79072805 LW |
2388 | break; |
2389 | case 'f': | |
db42d148 | 2390 | *d++ = NATIVE_TO_NEED(has_utf8,'\f'); |
79072805 LW |
2391 | break; |
2392 | case 't': | |
db42d148 | 2393 | *d++ = NATIVE_TO_NEED(has_utf8,'\t'); |
79072805 | 2394 | break; |
34a3fe2a | 2395 | case 'e': |
db42d148 | 2396 | *d++ = ASCII_TO_NEED(has_utf8,'\033'); |
34a3fe2a PP |
2397 | break; |
2398 | case 'a': | |
db42d148 | 2399 | *d++ = ASCII_TO_NEED(has_utf8,'\007'); |
79072805 | 2400 | break; |
02aa26ce NT |
2401 | } /* end switch */ |
2402 | ||
79072805 LW |
2403 | s++; |
2404 | continue; | |
02aa26ce | 2405 | } /* end if (backslash) */ |
4c3a8340 TS |
2406 | #ifdef EBCDIC |
2407 | else | |
2408 | literal_endpoint++; | |
2409 | #endif | |
02aa26ce | 2410 | |
f9a63242 | 2411 | default_action: |
2b9d42f0 NIS |
2412 | /* If we started with encoded form, or already know we want it |
2413 | and then encode the next character */ | |
2414 | if ((has_utf8 || this_utf8) && !NATIVE_IS_INVARIANT((U8)(*s))) { | |
2415 | STRLEN len = 1; | |
5f66b61c AL |
2416 | const UV nextuv = (this_utf8) ? utf8n_to_uvchr((U8*)s, send - s, &len, 0) : (UV) ((U8) *s); |
2417 | const STRLEN need = UNISKIP(NATIVE_TO_UNI(nextuv)); | |
2b9d42f0 NIS |
2418 | s += len; |
2419 | if (need > len) { | |
2420 | /* encoded value larger than old, need extra space (NOTE: SvCUR() not set here) */ | |
9d4ba2ae | 2421 | const STRLEN off = d - SvPVX_const(sv); |
2b9d42f0 NIS |
2422 | d = SvGROW(sv, SvLEN(sv) + (need-len)) + off; |
2423 | } | |
5f66b61c | 2424 | d = (char*)uvchr_to_utf8((U8*)d, nextuv); |
2b9d42f0 | 2425 | has_utf8 = TRUE; |
e294cc5d JH |
2426 | #ifdef EBCDIC |
2427 | if (uv > 255 && !dorange) | |
2428 | native_range = FALSE; | |
2429 | #endif | |
2b9d42f0 NIS |
2430 | } |
2431 | else { | |
2432 | *d++ = NATIVE_TO_NEED(has_utf8,*s++); | |
2433 | } | |
02aa26ce NT |
2434 | } /* while loop to process each character */ |
2435 | ||
2436 | /* terminate the string and set up the sv */ | |
79072805 | 2437 | *d = '\0'; |
95a20fc0 | 2438 | SvCUR_set(sv, d - SvPVX_const(sv)); |
2b9d42f0 | 2439 | if (SvCUR(sv) >= SvLEN(sv)) |
d0063567 | 2440 | Perl_croak(aTHX_ "panic: constant overflowed allocated space"); |
2b9d42f0 | 2441 | |
79072805 | 2442 | SvPOK_on(sv); |
9f4817db | 2443 | if (PL_encoding && !has_utf8) { |
d0063567 DK |
2444 | sv_recode_to_utf8(sv, PL_encoding); |
2445 | if (SvUTF8(sv)) | |
2446 | has_utf8 = TRUE; | |
9f4817db | 2447 | } |
2b9d42f0 | 2448 | if (has_utf8) { |
7e2040f0 | 2449 | SvUTF8_on(sv); |
2b9d42f0 | 2450 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
d0063567 | 2451 | PL_sublex_info.sub_op->op_private |= |
2b9d42f0 NIS |
2452 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); |
2453 | } | |
2454 | } | |
79072805 | 2455 | |
02aa26ce | 2456 | /* shrink the sv if we allocated more than we used */ |
79072805 | 2457 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
1da4ca5f | 2458 | SvPV_shrink_to_cur(sv); |
79072805 | 2459 | } |
02aa26ce | 2460 | |
6154021b | 2461 | /* return the substring (via pl_yylval) only if we parsed anything */ |
3280af22 | 2462 | if (s > PL_bufptr) { |
eb0d8d16 NC |
2463 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) { |
2464 | const char *const key = PL_lex_inpat ? "qr" : "q"; | |
2465 | const STRLEN keylen = PL_lex_inpat ? 2 : 1; | |
2466 | const char *type; | |
2467 | STRLEN typelen; | |
2468 | ||
2469 | if (PL_lex_inwhat == OP_TRANS) { | |
2470 | type = "tr"; | |
2471 | typelen = 2; | |
2472 | } else if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) { | |
2473 | type = "s"; | |
2474 | typelen = 1; | |
2475 | } else { | |
2476 | type = "qq"; | |
2477 | typelen = 2; | |
2478 | } | |
2479 | ||
2480 | sv = S_new_constant(aTHX_ start, s - start, key, keylen, sv, NULL, | |
2481 | type, typelen); | |
2482 | } | |
6154021b | 2483 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 2484 | } else |
8990e307 | 2485 | SvREFCNT_dec(sv); |
79072805 LW |
2486 | return s; |
2487 | } | |
2488 | ||
ffb4593c NT |
2489 | /* S_intuit_more |
2490 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
2491 | * FALSE otherwise. | |
ffb4593c NT |
2492 | * |
2493 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
2494 | * | |
2495 | * ->[ and ->{ return TRUE | |
2496 | * { and [ outside a pattern are always subscripts, so return TRUE | |
2497 | * if we're outside a pattern and it's not { or [, then return FALSE | |
2498 | * if we're in a pattern and the first char is a { | |
2499 | * {4,5} (any digits around the comma) returns FALSE | |
2500 | * if we're in a pattern and the first char is a [ | |
2501 | * [] returns FALSE | |
2502 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
2503 | * character class or not. It has to deal with things like | |
2504 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
2505 | * anything else returns TRUE | |
2506 | */ | |
2507 | ||
9cbb5ea2 GS |
2508 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
2509 | ||
76e3520e | 2510 | STATIC int |
cea2e8a9 | 2511 | S_intuit_more(pTHX_ register char *s) |
79072805 | 2512 | { |
97aff369 | 2513 | dVAR; |
3280af22 | 2514 | if (PL_lex_brackets) |
79072805 LW |
2515 | return TRUE; |
2516 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
2517 | return TRUE; | |
2518 | if (*s != '{' && *s != '[') | |
2519 | return FALSE; | |
3280af22 | 2520 | if (!PL_lex_inpat) |
79072805 LW |
2521 | return TRUE; |
2522 | ||
2523 | /* In a pattern, so maybe we have {n,m}. */ | |
2524 | if (*s == '{') { | |
2525 | s++; | |
2526 | if (!isDIGIT(*s)) | |
2527 | return TRUE; | |
2528 | while (isDIGIT(*s)) | |
2529 | s++; | |
2530 | if (*s == ',') | |
2531 | s++; | |
2532 | while (isDIGIT(*s)) | |
2533 | s++; | |
2534 | if (*s == '}') | |
2535 | return FALSE; | |
2536 | return TRUE; | |
2537 | ||
2538 | } | |
2539 | ||
2540 | /* On the other hand, maybe we have a character class */ | |
2541 | ||
2542 | s++; | |
2543 | if (*s == ']' || *s == '^') | |
2544 | return FALSE; | |
2545 | else { | |
ffb4593c | 2546 | /* this is terrifying, and it works */ |
79072805 LW |
2547 | int weight = 2; /* let's weigh the evidence */ |
2548 | char seen[256]; | |
f27ffc4a | 2549 | unsigned char un_char = 255, last_un_char; |
9d4ba2ae | 2550 | const char * const send = strchr(s,']'); |
3280af22 | 2551 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
2552 | |
2553 | if (!send) /* has to be an expression */ | |
2554 | return TRUE; | |
2555 | ||
2556 | Zero(seen,256,char); | |
2557 | if (*s == '$') | |
2558 | weight -= 3; | |
2559 | else if (isDIGIT(*s)) { | |
2560 | if (s[1] != ']') { | |
2561 | if (isDIGIT(s[1]) && s[2] == ']') | |
2562 | weight -= 10; | |
2563 | } | |
2564 | else | |
2565 | weight -= 100; | |
2566 | } | |
2567 | for (; s < send; s++) { | |
2568 | last_un_char = un_char; | |
2569 | un_char = (unsigned char)*s; | |
2570 | switch (*s) { | |
2571 | case '@': | |
2572 | case '&': | |
2573 | case '$': | |
2574 | weight -= seen[un_char] * 10; | |
7e2040f0 | 2575 | if (isALNUM_lazy_if(s+1,UTF)) { |
90e5519e | 2576 | int len; |
8903cb82 | 2577 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
90e5519e NC |
2578 | len = (int)strlen(tmpbuf); |
2579 | if (len > 1 && gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PV)) | |
79072805 LW |
2580 | weight -= 100; |
2581 | else | |
2582 | weight -= 10; | |
2583 | } | |
2584 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
2585 | strchr("[#!%*<>()-=",s[1])) { |
2586 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
2587 | weight -= 10; |
2588 | else | |
2589 | weight -= 1; | |
2590 | } | |
2591 | break; | |
2592 | case '\\': | |
2593 | un_char = 254; | |
2594 | if (s[1]) { | |
93a17b20 | 2595 | if (strchr("wds]",s[1])) |
79072805 | 2596 | weight += 100; |
10edeb5d | 2597 | else if (seen[(U8)'\''] || seen[(U8)'"']) |
79072805 | 2598 | weight += 1; |
93a17b20 | 2599 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
2600 | weight += 40; |
2601 | else if (isDIGIT(s[1])) { | |
2602 | weight += 40; | |
2603 | while (s[1] && isDIGIT(s[1])) | |
2604 | s++; | |
2605 | } | |
2606 | } | |
2607 | else | |
2608 | weight += 100; | |
2609 | break; | |
2610 | case '-': | |
2611 | if (s[1] == '\\') | |
2612 | weight += 50; | |
93a17b20 | 2613 | if (strchr("aA01! ",last_un_char)) |
79072805 | 2614 | weight += 30; |
93a17b20 | 2615 | if (strchr("zZ79~",s[1])) |
79072805 | 2616 | weight += 30; |
f27ffc4a GS |
2617 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
2618 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
2619 | break; |
2620 | default: | |
3792a11b NC |
2621 | if (!isALNUM(last_un_char) |
2622 | && !(last_un_char == '$' || last_un_char == '@' | |
2623 | || last_un_char == '&') | |
2624 | && isALPHA(*s) && s[1] && isALPHA(s[1])) { | |
79072805 LW |
2625 | char *d = tmpbuf; |
2626 | while (isALPHA(*s)) | |
2627 | *d++ = *s++; | |
2628 | *d = '\0'; | |
5458a98a | 2629 | if (keyword(tmpbuf, d - tmpbuf, 0)) |
79072805 LW |
2630 | weight -= 150; |
2631 | } | |
2632 | if (un_char == last_un_char + 1) | |
2633 | weight += 5; | |
2634 | weight -= seen[un_char]; | |
2635 | break; | |
2636 | } | |
2637 | seen[un_char]++; | |
2638 | } | |
2639 | if (weight >= 0) /* probably a character class */ | |
2640 | return FALSE; | |
2641 | } | |
2642 | ||
2643 | return TRUE; | |
2644 | } | |
ffed7fef | 2645 | |
ffb4593c NT |
2646 | /* |
2647 | * S_intuit_method | |
2648 | * | |
2649 | * Does all the checking to disambiguate | |
2650 | * foo bar | |
2651 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
2652 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
2653 | * | |
2654 | * First argument is the stuff after the first token, e.g. "bar". | |
2655 | * | |
2656 | * Not a method if bar is a filehandle. | |
2657 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
2658 | * Not a method if it's really "Foo $bar" | |
2659 | * Method if it's "foo $bar" | |
2660 | * Not a method if it's really "print foo $bar" | |
2661 | * Method if it's really "foo package::" (interpreted as package->foo) | |
8f8cf39c | 2662 | * Not a method if bar is known to be a subroutine ("sub bar; foo bar") |
3cb0bbe5 | 2663 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
2664 | * => |
2665 | */ | |
2666 | ||
76e3520e | 2667 | STATIC int |
62d55b22 | 2668 | S_intuit_method(pTHX_ char *start, GV *gv, CV *cv) |
a0d0e21e | 2669 | { |
97aff369 | 2670 | dVAR; |
a0d0e21e | 2671 | char *s = start + (*start == '$'); |
3280af22 | 2672 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
2673 | STRLEN len; |
2674 | GV* indirgv; | |
5db06880 NC |
2675 | #ifdef PERL_MAD |
2676 | int soff; | |
2677 | #endif | |
a0d0e21e LW |
2678 | |
2679 | if (gv) { | |
62d55b22 | 2680 | if (SvTYPE(gv) == SVt_PVGV && GvIO(gv)) |
a0d0e21e | 2681 | return 0; |
62d55b22 NC |
2682 | if (cv) { |
2683 | if (SvPOK(cv)) { | |
2684 | const char *proto = SvPVX_const(cv); | |
2685 | if (proto) { | |
2686 | if (*proto == ';') | |
2687 | proto++; | |
2688 | if (*proto == '*') | |
2689 | return 0; | |
2690 | } | |
b6c543e3 IZ |
2691 | } |
2692 | } else | |
c35e046a | 2693 | gv = NULL; |
a0d0e21e | 2694 | } |
8903cb82 | 2695 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
2696 | /* start is the beginning of the possible filehandle/object, |
2697 | * and s is the end of it | |
2698 | * tmpbuf is a copy of it | |
2699 | */ | |
2700 | ||
a0d0e21e | 2701 | if (*start == '$') { |
3ef1310e RGS |
2702 | if (gv || PL_last_lop_op == OP_PRINT || PL_last_lop_op == OP_SAY || |
2703 | isUPPER(*PL_tokenbuf)) | |
a0d0e21e | 2704 | return 0; |
5db06880 NC |
2705 | #ifdef PERL_MAD |
2706 | len = start - SvPVX(PL_linestr); | |
2707 | #endif | |
29595ff2 | 2708 | s = PEEKSPACE(s); |
f0092767 | 2709 | #ifdef PERL_MAD |
5db06880 NC |
2710 | start = SvPVX(PL_linestr) + len; |
2711 | #endif | |
3280af22 NIS |
2712 | PL_bufptr = start; |
2713 | PL_expect = XREF; | |
a0d0e21e LW |
2714 | return *s == '(' ? FUNCMETH : METHOD; |
2715 | } | |
5458a98a | 2716 | if (!keyword(tmpbuf, len, 0)) { |
c3e0f903 GS |
2717 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
2718 | len -= 2; | |
2719 | tmpbuf[len] = '\0'; | |
5db06880 NC |
2720 | #ifdef PERL_MAD |
2721 | soff = s - SvPVX(PL_linestr); | |
2722 | #endif | |
c3e0f903 GS |
2723 | goto bare_package; |
2724 | } | |
90e5519e | 2725 | indirgv = gv_fetchpvn_flags(tmpbuf, len, 0, SVt_PVCV); |
8ebc5c01 | 2726 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
2727 | return 0; |
2728 | /* filehandle or package name makes it a method */ | |
da51bb9b | 2729 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, 0)) { |
5db06880 NC |
2730 | #ifdef PERL_MAD |
2731 | soff = s - SvPVX(PL_linestr); | |
2732 | #endif | |
29595ff2 | 2733 | s = PEEKSPACE(s); |
3280af22 | 2734 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 2735 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 2736 | bare_package: |
cd81e915 | 2737 | start_force(PL_curforce); |
9ded7720 | 2738 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, |
79cb57f6 | 2739 | newSVpvn(tmpbuf,len)); |
9ded7720 | 2740 | NEXTVAL_NEXTTOKE.opval->op_private = OPpCONST_BARE; |
5db06880 NC |
2741 | if (PL_madskills) |
2742 | curmad('X', newSVpvn(start,SvPVX(PL_linestr) + soff - start)); | |
3280af22 | 2743 | PL_expect = XTERM; |
a0d0e21e | 2744 | force_next(WORD); |
3280af22 | 2745 | PL_bufptr = s; |
5db06880 NC |
2746 | #ifdef PERL_MAD |
2747 | PL_bufptr = SvPVX(PL_linestr) + soff; /* restart before space */ | |
2748 | #endif | |
a0d0e21e LW |
2749 | return *s == '(' ? FUNCMETH : METHOD; |
2750 | } | |
2751 | } | |
2752 | return 0; | |
2753 | } | |
2754 | ||
16d20bd9 | 2755 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 2756 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
2757 | * Note that the filter function only applies to the current source file |
2758 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
2759 | * | |
2760 | * The datasv parameter (which may be NULL) can be used to pass | |
2761 | * private data to this instance of the filter. The filter function | |
2762 | * can recover the SV using the FILTER_DATA macro and use it to | |
2763 | * store private buffers and state information. | |
2764 | * | |
2765 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 2766 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 2767 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
2768 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
2769 | * private use must be set using malloc'd pointers. | |
2770 | */ | |
16d20bd9 AD |
2771 | |
2772 | SV * | |
864dbfa3 | 2773 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 2774 | { |
97aff369 | 2775 | dVAR; |
f4c556ac | 2776 | if (!funcp) |
a0714e2c | 2777 | return NULL; |
f4c556ac | 2778 | |
5486870f DM |
2779 | if (!PL_parser) |
2780 | return NULL; | |
2781 | ||
3280af22 NIS |
2782 | if (!PL_rsfp_filters) |
2783 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 2784 | if (!datasv) |
561b68a9 | 2785 | datasv = newSV(0); |
862a34c6 | 2786 | SvUPGRADE(datasv, SVt_PVIO); |
8141890a | 2787 | IoANY(datasv) = FPTR2DPTR(void *, funcp); /* stash funcp into spare field */ |
e0c19803 | 2788 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac | 2789 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
55662e27 JH |
2790 | FPTR2DPTR(void *, IoANY(datasv)), |
2791 | SvPV_nolen(datasv))); | |
3280af22 NIS |
2792 | av_unshift(PL_rsfp_filters, 1); |
2793 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
2794 | return(datasv); |
2795 | } | |
4e553d73 | 2796 | |
16d20bd9 AD |
2797 | |
2798 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 2799 | void |
864dbfa3 | 2800 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 2801 | { |
97aff369 | 2802 | dVAR; |
e0c19803 | 2803 | SV *datasv; |
24801a4b | 2804 | |
33073adb | 2805 | #ifdef DEBUGGING |
55662e27 JH |
2806 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", |
2807 | FPTR2DPTR(void*, funcp))); | |
33073adb | 2808 | #endif |
5486870f | 2809 | if (!PL_parser || !PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
2810 | return; |
2811 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 2812 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
8141890a | 2813 | if (IoANY(datasv) == FPTR2DPTR(void *, funcp)) { |
e0c19803 | 2814 | IoFLAGS(datasv) &= ~IOf_FAKE_DIRP; |
4755096e | 2815 | IoANY(datasv) = (void *)NULL; |
3280af22 | 2816 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 2817 | |
16d20bd9 AD |
2818 | return; |
2819 | } | |
2820 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 2821 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
2822 | } |
2823 | ||
2824 | ||
1de9afcd RGS |
2825 | /* Invoke the idxth filter function for the current rsfp. */ |
2826 | /* maxlen 0 = read one text line */ | |
16d20bd9 | 2827 | I32 |
864dbfa3 | 2828 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
a0d0e21e | 2829 | { |
97aff369 | 2830 | dVAR; |
16d20bd9 AD |
2831 | filter_t funcp; |
2832 | SV *datasv = NULL; | |
f482118e NC |
2833 | /* This API is bad. It should have been using unsigned int for maxlen. |
2834 | Not sure if we want to change the API, but if not we should sanity | |
2835 | check the value here. */ | |
39cd7a59 NC |
2836 | const unsigned int correct_length |
2837 | = maxlen < 0 ? | |
2838 | #ifdef PERL_MICRO | |
2839 | 0x7FFFFFFF | |
2840 | #else | |
2841 | INT_MAX | |
2842 | #endif | |
2843 | : maxlen; | |
e50aee73 | 2844 | |
5486870f | 2845 | if (!PL_parser || !PL_rsfp_filters) |
16d20bd9 | 2846 | return -1; |
1de9afcd | 2847 | if (idx > AvFILLp(PL_rsfp_filters)) { /* Any more filters? */ |
16d20bd9 AD |
2848 | /* Provide a default input filter to make life easy. */ |
2849 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
2850 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2851 | "filter_read %d: from rsfp\n", idx)); | |
f482118e | 2852 | if (correct_length) { |
16d20bd9 AD |
2853 | /* Want a block */ |
2854 | int len ; | |
f54cb97a | 2855 | const int old_len = SvCUR(buf_sv); |
16d20bd9 AD |
2856 | |
2857 | /* ensure buf_sv is large enough */ | |
f482118e NC |
2858 | SvGROW(buf_sv, (STRLEN)(old_len + correct_length)) ; |
2859 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, | |
2860 | correct_length)) <= 0) { | |
3280af22 | 2861 | if (PerlIO_error(PL_rsfp)) |
37120919 AD |
2862 | return -1; /* error */ |
2863 | else | |
2864 | return 0 ; /* end of file */ | |
2865 | } | |
16d20bd9 AD |
2866 | SvCUR_set(buf_sv, old_len + len) ; |
2867 | } else { | |
2868 | /* Want a line */ | |
3280af22 NIS |
2869 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
2870 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
2871 | return -1; /* error */ |
2872 | else | |
2873 | return 0 ; /* end of file */ | |
2874 | } | |
16d20bd9 AD |
2875 | } |
2876 | return SvCUR(buf_sv); | |
2877 | } | |
2878 | /* Skip this filter slot if filter has been deleted */ | |
1de9afcd | 2879 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef) { |
f4c556ac GS |
2880 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2881 | "filter_read %d: skipped (filter deleted)\n", | |
2882 | idx)); | |
f482118e | 2883 | return FILTER_READ(idx+1, buf_sv, correct_length); /* recurse */ |
16d20bd9 AD |
2884 | } |
2885 | /* Get function pointer hidden within datasv */ | |
8141890a | 2886 | funcp = DPTR2FPTR(filter_t, IoANY(datasv)); |
f4c556ac GS |
2887 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2888 | "filter_read %d: via function %p (%s)\n", | |
ca0270c4 | 2889 | idx, (void*)datasv, SvPV_nolen_const(datasv))); |
16d20bd9 AD |
2890 | /* Call function. The function is expected to */ |
2891 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 2892 | /* Return: <0:error, =0:eof, >0:not eof */ |
f482118e | 2893 | return (*funcp)(aTHX_ idx, buf_sv, correct_length); |
16d20bd9 AD |
2894 | } |
2895 | ||
76e3520e | 2896 | STATIC char * |
cea2e8a9 | 2897 | S_filter_gets(pTHX_ register SV *sv, register PerlIO *fp, STRLEN append) |
16d20bd9 | 2898 | { |
97aff369 | 2899 | dVAR; |
c39cd008 | 2900 | #ifdef PERL_CR_FILTER |
3280af22 | 2901 | if (!PL_rsfp_filters) { |
c39cd008 | 2902 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
2903 | } |
2904 | #endif | |
3280af22 | 2905 | if (PL_rsfp_filters) { |
55497cff | 2906 | if (!append) |
2907 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
2908 | if (FILTER_READ(0, sv, 0) > 0) |
2909 | return ( SvPVX(sv) ) ; | |
2910 | else | |
bd61b366 | 2911 | return NULL ; |
16d20bd9 | 2912 | } |
9d116dd7 | 2913 | else |
fd049845 | 2914 | return (sv_gets(sv, fp, append)); |
a0d0e21e LW |
2915 | } |
2916 | ||
01ec43d0 | 2917 | STATIC HV * |
9bde8eb0 | 2918 | S_find_in_my_stash(pTHX_ const char *pkgname, STRLEN len) |
def3634b | 2919 | { |
97aff369 | 2920 | dVAR; |
def3634b GS |
2921 | GV *gv; |
2922 | ||
01ec43d0 | 2923 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
2924 | return PL_curstash; |
2925 | ||
2926 | if (len > 2 && | |
2927 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
90e5519e | 2928 | (gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVHV))) |
01ec43d0 GS |
2929 | { |
2930 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
2931 | } |
2932 | ||
2933 | /* use constant CLASS => 'MyClass' */ | |
c35e046a AL |
2934 | gv = gv_fetchpvn_flags(pkgname, len, 0, SVt_PVCV); |
2935 | if (gv && GvCV(gv)) { | |
2936 | SV * const sv = cv_const_sv(GvCV(gv)); | |
2937 | if (sv) | |
9bde8eb0 | 2938 | pkgname = SvPV_const(sv, len); |
def3634b GS |
2939 | } |
2940 | ||
9bde8eb0 | 2941 | return gv_stashpvn(pkgname, len, 0); |
def3634b | 2942 | } |
a0d0e21e | 2943 | |
e3f73d4e RGS |
2944 | /* |
2945 | * S_readpipe_override | |
2946 | * Check whether readpipe() is overriden, and generates the appropriate | |
2947 | * optree, provided sublex_start() is called afterwards. | |
2948 | */ | |
2949 | STATIC void | |
1d51329b | 2950 | S_readpipe_override(pTHX) |
e3f73d4e RGS |
2951 | { |
2952 | GV **gvp; | |
2953 | GV *gv_readpipe = gv_fetchpvs("readpipe", GV_NOTQUAL, SVt_PVCV); | |
6154021b | 2954 | pl_yylval.ival = OP_BACKTICK; |
e3f73d4e RGS |
2955 | if ((gv_readpipe |
2956 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe)) | |
2957 | || | |
2958 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readpipe", FALSE)) | |
d5e716f5 | 2959 | && (gv_readpipe = *gvp) && isGV_with_GP(gv_readpipe) |
e3f73d4e RGS |
2960 | && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe))) |
2961 | { | |
2962 | PL_lex_op = (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
2963 | append_elem(OP_LIST, | |
2964 | newSVOP(OP_CONST, 0, &PL_sv_undef), /* value will be read later */ | |
2965 | newCVREF(0, newGVOP(OP_GV, 0, gv_readpipe)))); | |
2966 | } | |
e3f73d4e RGS |
2967 | } |
2968 | ||
5db06880 NC |
2969 | #ifdef PERL_MAD |
2970 | /* | |
2971 | * Perl_madlex | |
2972 | * The intent of this yylex wrapper is to minimize the changes to the | |
2973 | * tokener when we aren't interested in collecting madprops. It remains | |
2974 | * to be seen how successful this strategy will be... | |
2975 | */ | |
2976 | ||
2977 | int | |
2978 | Perl_madlex(pTHX) | |
2979 | { | |
2980 | int optype; | |
2981 | char *s = PL_bufptr; | |
2982 | ||
cd81e915 NC |
2983 | /* make sure PL_thiswhite is initialized */ |
2984 | PL_thiswhite = 0; | |
2985 | PL_thismad = 0; | |
5db06880 | 2986 | |
cd81e915 | 2987 | /* just do what yylex would do on pending identifier; leave PL_thiswhite alone */ |
5db06880 NC |
2988 | if (PL_pending_ident) |
2989 | return S_pending_ident(aTHX); | |
2990 | ||
2991 | /* previous token ate up our whitespace? */ | |
cd81e915 NC |
2992 | if (!PL_lasttoke && PL_nextwhite) { |
2993 | PL_thiswhite = PL_nextwhite; | |
2994 | PL_nextwhite = 0; | |
5db06880 NC |
2995 | } |
2996 | ||
2997 | /* isolate the token, and figure out where it is without whitespace */ | |
cd81e915 NC |
2998 | PL_realtokenstart = -1; |
2999 | PL_thistoken = 0; | |
5db06880 NC |
3000 | optype = yylex(); |
3001 | s = PL_bufptr; | |
cd81e915 | 3002 | assert(PL_curforce < 0); |
5db06880 | 3003 | |
cd81e915 NC |
3004 | if (!PL_thismad || PL_thismad->mad_key == '^') { /* not forced already? */ |
3005 | if (!PL_thistoken) { | |
3006 | if (PL_realtokenstart < 0 || !CopLINE(PL_curcop)) | |
6b29d1f5 | 3007 | PL_thistoken = newSVpvs(""); |
5db06880 | 3008 | else { |
c35e046a | 3009 | char * const tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
cd81e915 | 3010 | PL_thistoken = newSVpvn(tstart, s - tstart); |
5db06880 NC |
3011 | } |
3012 | } | |
cd81e915 NC |
3013 | if (PL_thismad) /* install head */ |
3014 | CURMAD('X', PL_thistoken); | |
5db06880 NC |
3015 | } |
3016 | ||
3017 | /* last whitespace of a sublex? */ | |
cd81e915 NC |
3018 | if (optype == ')' && PL_endwhite) { |
3019 | CURMAD('X', PL_endwhite); | |
5db06880 NC |
3020 | } |
3021 | ||
cd81e915 | 3022 | if (!PL_thismad) { |
5db06880 NC |
3023 | |
3024 | /* if no whitespace and we're at EOF, bail. Otherwise fake EOF below. */ | |
cd81e915 NC |
3025 | if (!PL_thiswhite && !PL_endwhite && !optype) { |
3026 | sv_free(PL_thistoken); | |
3027 | PL_thistoken = 0; | |
5db06880 NC |
3028 | return 0; |
3029 | } | |
3030 | ||
3031 | /* put off final whitespace till peg */ | |
3032 | if (optype == ';' && !PL_rsfp) { | |
cd81e915 NC |
3033 | PL_nextwhite = PL_thiswhite; |
3034 | PL_thiswhite = 0; | |
5db06880 | 3035 | } |
cd81e915 NC |
3036 | else if (PL_thisopen) { |
3037 | CURMAD('q', PL_thisopen); | |
3038 | if (PL_thistoken) | |
3039 | sv_free(PL_thistoken); | |
3040 | PL_thistoken = 0; | |
5db06880 NC |
3041 | } |
3042 | else { | |
3043 | /* Store actual token text as madprop X */ | |
cd81e915 | 3044 | CURMAD('X', PL_thistoken); |
5db06880 NC |
3045 | } |
3046 | ||
cd81e915 | 3047 | if (PL_thiswhite) { |
5db06880 | 3048 | /* add preceding whitespace as madprop _ */ |
cd81e915 | 3049 | CURMAD('_', PL_thiswhite); |
5db06880 NC |
3050 | } |
3051 | ||
cd81e915 | 3052 | if (PL_thisstuff) { |
5db06880 | 3053 | /* add quoted material as madprop = */ |
cd81e915 | 3054 | CURMAD('=', PL_thisstuff); |
5db06880 NC |
3055 | } |
3056 | ||
cd81e915 | 3057 | if (PL_thisclose) { |
5db06880 | 3058 | /* add terminating quote as madprop Q */ |
cd81e915 | 3059 | CURMAD('Q', PL_thisclose); |
5db06880 NC |
3060 | } |
3061 | } | |
3062 | ||
3063 | /* special processing based on optype */ | |
3064 | ||
3065 | switch (optype) { | |
3066 | ||
3067 | /* opval doesn't need a TOKEN since it can already store mp */ | |
3068 | case WORD: | |
3069 | case METHOD: | |
3070 | case FUNCMETH: | |
3071 | case THING: | |
3072 | case PMFUNC: | |
3073 | case PRIVATEREF: | |
3074 | case FUNC0SUB: | |
3075 | case UNIOPSUB: | |
3076 | case LSTOPSUB: | |
6154021b RGS |
3077 | if (pl_yylval.opval) |
3078 | append_madprops(PL_thismad, pl_yylval.opval, 0); | |
cd81e915 | 3079 | PL_thismad = 0; |
5db06880 NC |
3080 | return optype; |
3081 | ||
3082 | /* fake EOF */ | |
3083 | case 0: | |
3084 | optype = PEG; | |
cd81e915 NC |
3085 | if (PL_endwhite) { |
3086 | addmad(newMADsv('p', PL_endwhite), &PL_thismad, 0); | |
3087 | PL_endwhite = 0; | |
5db06880 NC |
3088 | } |
3089 | break; | |
3090 | ||
3091 | case ']': | |
3092 | case '}': | |
cd81e915 | 3093 | if (PL_faketokens) |
5db06880 NC |
3094 | break; |
3095 | /* remember any fake bracket that lexer is about to discard */ | |
3096 | if (PL_lex_brackets == 1 && | |
3097 | ((expectation)PL_lex_brackstack[0] & XFAKEBRACK)) | |
3098 | { | |
3099 | s = PL_bufptr; | |
3100 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
3101 | s++; | |
3102 | if (*s == '}') { | |
cd81e915 NC |
3103 | PL_thiswhite = newSVpvn(PL_bufptr, ++s - PL_bufptr); |
3104 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3105 | PL_thiswhite = 0; | |
5db06880 NC |
3106 | PL_bufptr = s - 1; |
3107 | break; /* don't bother looking for trailing comment */ | |
3108 | } | |
3109 | else | |
3110 | s = PL_bufptr; | |
3111 | } | |
3112 | if (optype == ']') | |
3113 | break; | |
3114 | /* FALLTHROUGH */ | |
3115 | ||
3116 | /* attach a trailing comment to its statement instead of next token */ | |
3117 | case ';': | |
cd81e915 | 3118 | if (PL_faketokens) |
5db06880 NC |
3119 | break; |
3120 | if (PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == optype) { | |
3121 | s = PL_bufptr; | |
3122 | while (s < PL_bufend && (*s == ' ' || *s == '\t')) | |
3123 | s++; | |
3124 | if (*s == '\n' || *s == '#') { | |
3125 | while (s < PL_bufend && *s != '\n') | |
3126 | s++; | |
3127 | if (s < PL_bufend) | |
3128 | s++; | |
cd81e915 NC |
3129 | PL_thiswhite = newSVpvn(PL_bufptr, s - PL_bufptr); |
3130 | addmad(newMADsv('#', PL_thiswhite), &PL_thismad, 0); | |
3131 | PL_thiswhite = 0; | |
5db06880 NC |
3132 | PL_bufptr = s; |
3133 | } | |
3134 | } | |
3135 | break; | |
3136 | ||
3137 | /* pval */ | |
3138 | case LABEL: | |
3139 | break; | |
3140 | ||
3141 | /* ival */ | |
3142 | default: | |
3143 | break; | |
3144 | ||
3145 | } | |
3146 | ||
3147 | /* Create new token struct. Note: opvals return early above. */ | |
6154021b | 3148 | pl_yylval.tkval = newTOKEN(optype, pl_yylval, PL_thismad); |
cd81e915 | 3149 | PL_thismad = 0; |
5db06880 NC |
3150 | return optype; |
3151 | } | |
3152 | #endif | |
3153 | ||
468aa647 | 3154 | STATIC char * |
cc6ed77d | 3155 | S_tokenize_use(pTHX_ int is_use, char *s) { |
97aff369 | 3156 | dVAR; |
468aa647 RGS |
3157 | if (PL_expect != XSTATE) |
3158 | yyerror(Perl_form(aTHX_ "\"%s\" not allowed in expression", | |
3159 | is_use ? "use" : "no")); | |
29595ff2 | 3160 | s = SKIPSPACE1(s); |
468aa647 RGS |
3161 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { |
3162 | s = force_version(s, TRUE); | |
29595ff2 | 3163 | if (*s == ';' || (s = SKIPSPACE1(s), *s == ';')) { |
cd81e915 | 3164 | start_force(PL_curforce); |
9ded7720 | 3165 | NEXTVAL_NEXTTOKE.opval = NULL; |
468aa647 RGS |
3166 | force_next(WORD); |
3167 | } | |
3168 | else if (*s == 'v') { | |
3169 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3170 | s = force_version(s, FALSE); | |
3171 | } | |
3172 | } | |
3173 | else { | |
3174 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3175 | s = force_version(s, FALSE); | |
3176 | } | |
6154021b | 3177 | pl_yylval.ival = is_use; |
468aa647 RGS |
3178 | return s; |
3179 | } | |
748a9306 | 3180 | #ifdef DEBUGGING |
27da23d5 | 3181 | static const char* const exp_name[] = |
09bef843 | 3182 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
27308ded | 3183 | "ATTRTERM", "TERMBLOCK", "TERMORDORDOR" |
09bef843 | 3184 | }; |
748a9306 | 3185 | #endif |
463ee0b2 | 3186 | |
02aa26ce NT |
3187 | /* |
3188 | yylex | |
3189 | ||
3190 | Works out what to call the token just pulled out of the input | |
3191 | stream. The yacc parser takes care of taking the ops we return and | |
3192 | stitching them into a tree. | |
3193 | ||
3194 | Returns: | |
3195 | PRIVATEREF | |
3196 | ||
3197 | Structure: | |
3198 | if read an identifier | |
3199 | if we're in a my declaration | |
3200 | croak if they tried to say my($foo::bar) | |
3201 | build the ops for a my() declaration | |
3202 | if it's an access to a my() variable | |
3203 | are we in a sort block? | |
3204 | croak if my($a); $a <=> $b | |
3205 | build ops for access to a my() variable | |
3206 | if in a dq string, and they've said @foo and we can't find @foo | |
3207 | croak | |
3208 | build ops for a bareword | |
3209 | if we already built the token before, use it. | |
3210 | */ | |
3211 | ||
20141f0e | 3212 | |
dba4d153 JH |
3213 | #ifdef __SC__ |
3214 | #pragma segment Perl_yylex | |
3215 | #endif | |
dba4d153 | 3216 | int |
dba4d153 | 3217 | Perl_yylex(pTHX) |
20141f0e | 3218 | { |
97aff369 | 3219 | dVAR; |
3afc138a | 3220 | register char *s = PL_bufptr; |
378cc40b | 3221 | register char *d; |
463ee0b2 | 3222 | STRLEN len; |
aa7440fb | 3223 | bool bof = FALSE; |
a687059c | 3224 | |
10edeb5d JH |
3225 | /* orig_keyword, gvp, and gv are initialized here because |
3226 | * jump to the label just_a_word_zero can bypass their | |
3227 | * initialization later. */ | |
3228 | I32 orig_keyword = 0; | |
3229 | GV *gv = NULL; | |
3230 | GV **gvp = NULL; | |
3231 | ||
bbf60fe6 | 3232 | DEBUG_T( { |
396482e1 | 3233 | SV* tmp = newSVpvs(""); |
b6007c36 DM |
3234 | PerlIO_printf(Perl_debug_log, "### %"IVdf":LEX_%s/X%s %s\n", |
3235 | (IV)CopLINE(PL_curcop), | |
3236 | lex_state_names[PL_lex_state], | |
3237 | exp_name[PL_expect], | |
3238 | pv_display(tmp, s, strlen(s), 0, 60)); | |
3239 | SvREFCNT_dec(tmp); | |
bbf60fe6 | 3240 | } ); |
02aa26ce | 3241 | /* check if there's an identifier for us to look at */ |
ba979b31 | 3242 | if (PL_pending_ident) |
bbf60fe6 | 3243 | return REPORT(S_pending_ident(aTHX)); |
bbce6d69 | 3244 | |
02aa26ce NT |
3245 | /* no identifier pending identification */ |
3246 | ||
3280af22 | 3247 | switch (PL_lex_state) { |
79072805 LW |
3248 | #ifdef COMMENTARY |
3249 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
3250 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
3251 | break; | |
3252 | #endif | |
3253 | ||
09bef843 | 3254 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 3255 | case LEX_KNOWNEXT: |
5db06880 NC |
3256 | #ifdef PERL_MAD |
3257 | PL_lasttoke--; | |
6154021b | 3258 | pl_yylval = PL_nexttoke[PL_lasttoke].next_val; |
5db06880 | 3259 | if (PL_madskills) { |
cd81e915 | 3260 | PL_thismad = PL_nexttoke[PL_lasttoke].next_mad; |
5db06880 | 3261 | PL_nexttoke[PL_lasttoke].next_mad = 0; |
cd81e915 NC |
3262 | if (PL_thismad && PL_thismad->mad_key == '_') { |
3263 | PL_thiswhite = (SV*)PL_thismad->mad_val; | |
3264 | PL_thismad->mad_val = 0; | |
3265 | mad_free(PL_thismad); | |
3266 | PL_thismad = 0; | |
5db06880 NC |
3267 | } |
3268 | } | |
3269 | if (!PL_lasttoke) { | |
3270 | PL_lex_state = PL_lex_defer; | |
3271 | PL_expect = PL_lex_expect; | |
3272 | PL_lex_defer = LEX_NORMAL; | |
3273 | if (!PL_nexttoke[PL_lasttoke].next_type) | |
3274 | return yylex(); | |
3275 | } | |
3276 | #else | |
3280af22 | 3277 | PL_nexttoke--; |
6154021b | 3278 | pl_yylval = PL_nextval[PL_nexttoke]; |
3280af22 NIS |
3279 | if (!PL_nexttoke) { |
3280 | PL_lex_state = PL_lex_defer; | |
3281 | PL_expect = PL_lex_expect; | |
3282 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 3283 | } |
5db06880 NC |
3284 | #endif |
3285 | #ifdef PERL_MAD | |
3286 | /* FIXME - can these be merged? */ | |
3287 | return(PL_nexttoke[PL_lasttoke].next_type); | |
3288 | #else | |
bbf60fe6 | 3289 | return REPORT(PL_nexttype[PL_nexttoke]); |
5db06880 | 3290 | #endif |
79072805 | 3291 | |
02aa26ce | 3292 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 3293 | when we get here, PL_bufptr is at the \ |
02aa26ce | 3294 | */ |
79072805 LW |
3295 | case LEX_INTERPCASEMOD: |
3296 | #ifdef DEBUGGING | |
3280af22 | 3297 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 3298 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 3299 | #endif |
02aa26ce | 3300 | /* handle \E or end of string */ |
3280af22 | 3301 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
02aa26ce | 3302 | /* if at a \E */ |
3280af22 | 3303 | if (PL_lex_casemods) { |
f54cb97a | 3304 | const char oldmod = PL_lex_casestack[--PL_lex_casemods]; |
3280af22 | 3305 | PL_lex_casestack[PL_lex_casemods] = '\0'; |
02aa26ce | 3306 | |
3792a11b NC |
3307 | if (PL_bufptr != PL_bufend |
3308 | && (oldmod == 'L' || oldmod == 'U' || oldmod == 'Q')) { | |
3280af22 NIS |
3309 | PL_bufptr += 2; |
3310 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3311 | #ifdef PERL_MAD |
3312 | if (PL_madskills) | |
6b29d1f5 | 3313 | PL_thistoken = newSVpvs("\\E"); |
5db06880 | 3314 | #endif |
a0d0e21e | 3315 | } |
bbf60fe6 | 3316 | return REPORT(')'); |
79072805 | 3317 | } |
5db06880 NC |
3318 | #ifdef PERL_MAD |
3319 | while (PL_bufptr != PL_bufend && | |
3320 | PL_bufptr[0] == '\\' && PL_bufptr[1] == 'E') { | |
cd81e915 | 3321 | if (!PL_thiswhite) |
6b29d1f5 | 3322 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3323 | sv_catpvn(PL_thiswhite, PL_bufptr, 2); |
5db06880 NC |
3324 | PL_bufptr += 2; |
3325 | } | |
3326 | #else | |
3280af22 NIS |
3327 | if (PL_bufptr != PL_bufend) |
3328 | PL_bufptr += 2; | |
5db06880 | 3329 | #endif |
3280af22 | 3330 | PL_lex_state = LEX_INTERPCONCAT; |
cea2e8a9 | 3331 | return yylex(); |
79072805 LW |
3332 | } |
3333 | else { | |
607df283 | 3334 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3335 | "### Saw case modifier\n"); }); |
3280af22 | 3336 | s = PL_bufptr + 1; |
6e909404 | 3337 | if (s[1] == '\\' && s[2] == 'E') { |
5db06880 | 3338 | #ifdef PERL_MAD |
cd81e915 | 3339 | if (!PL_thiswhite) |
6b29d1f5 | 3340 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 3341 | sv_catpvn(PL_thiswhite, PL_bufptr, 4); |
5db06880 | 3342 | #endif |
89122651 | 3343 | PL_bufptr = s + 3; |
6e909404 JH |
3344 | PL_lex_state = LEX_INTERPCONCAT; |
3345 | return yylex(); | |
a0d0e21e | 3346 | } |
6e909404 | 3347 | else { |
90771dc0 | 3348 | I32 tmp; |
5db06880 NC |
3349 | if (!PL_madskills) /* when just compiling don't need correct */ |
3350 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
3351 | tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */ | |
3792a11b | 3352 | if ((*s == 'L' || *s == 'U') && |
6e909404 JH |
3353 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) { |
3354 | PL_lex_casestack[--PL_lex_casemods] = '\0'; | |
bbf60fe6 | 3355 | return REPORT(')'); |
6e909404 JH |
3356 | } |
3357 | if (PL_lex_casemods > 10) | |
3358 | Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
3359 | PL_lex_casestack[PL_lex_casemods++] = *s; | |
3360 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
3361 | PL_lex_state = LEX_INTERPCONCAT; | |
cd81e915 | 3362 | start_force(PL_curforce); |
9ded7720 | 3363 | NEXTVAL_NEXTTOKE.ival = 0; |
6e909404 | 3364 | force_next('('); |
cd81e915 | 3365 | start_force(PL_curforce); |
6e909404 | 3366 | if (*s == 'l') |
9ded7720 | 3367 | NEXTVAL_NEXTTOKE.ival = OP_LCFIRST; |
6e909404 | 3368 | else if (*s == 'u') |
9ded7720 | 3369 | NEXTVAL_NEXTTOKE.ival = OP_UCFIRST; |
6e909404 | 3370 | else if (*s == 'L') |
9ded7720 | 3371 | NEXTVAL_NEXTTOKE.ival = OP_LC; |
6e909404 | 3372 | else if (*s == 'U') |
9ded7720 | 3373 | NEXTVAL_NEXTTOKE.ival = OP_UC; |
6e909404 | 3374 | else if (*s == 'Q') |
9ded7720 | 3375 | NEXTVAL_NEXTTOKE.ival = OP_QUOTEMETA; |
6e909404 JH |
3376 | else |
3377 | Perl_croak(aTHX_ "panic: yylex"); | |
5db06880 | 3378 | if (PL_madskills) { |
a5849ce5 NC |
3379 | SV* const tmpsv = newSVpvs("\\ "); |
3380 | /* replace the space with the character we want to escape | |
3381 | */ | |
3382 | SvPVX(tmpsv)[1] = *s; | |
5db06880 NC |
3383 | curmad('_', tmpsv); |
3384 | } | |
6e909404 | 3385 | PL_bufptr = s + 1; |
a0d0e21e | 3386 | } |
79072805 | 3387 | force_next(FUNC); |
3280af22 NIS |
3388 | if (PL_lex_starts) { |
3389 | s = PL_bufptr; | |
3390 | PL_lex_starts = 0; | |
5db06880 NC |
3391 | #ifdef PERL_MAD |
3392 | if (PL_madskills) { | |
cd81e915 NC |
3393 | if (PL_thistoken) |
3394 | sv_free(PL_thistoken); | |
6b29d1f5 | 3395 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3396 | } |
3397 | #endif | |
131b3ad0 DM |
3398 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3399 | if (PL_lex_casemods == 1 && PL_lex_inpat) | |
3400 | OPERATOR(','); | |
3401 | else | |
3402 | Aop(OP_CONCAT); | |
79072805 LW |
3403 | } |
3404 | else | |
cea2e8a9 | 3405 | return yylex(); |
79072805 LW |
3406 | } |
3407 | ||
55497cff | 3408 | case LEX_INTERPPUSH: |
bbf60fe6 | 3409 | return REPORT(sublex_push()); |
55497cff | 3410 | |
79072805 | 3411 | case LEX_INTERPSTART: |
3280af22 | 3412 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3413 | return REPORT(sublex_done()); |
607df283 | 3414 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 3415 | "### Interpolated variable\n"); }); |
3280af22 NIS |
3416 | PL_expect = XTERM; |
3417 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
3418 | PL_lex_state = LEX_INTERPNORMAL; | |
3419 | if (PL_lex_dojoin) { | |
cd81e915 | 3420 | start_force(PL_curforce); |
9ded7720 | 3421 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3422 | force_next(','); |
cd81e915 | 3423 | start_force(PL_curforce); |
a0d0e21e | 3424 | force_ident("\"", '$'); |
cd81e915 | 3425 | start_force(PL_curforce); |
9ded7720 | 3426 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3427 | force_next('$'); |
cd81e915 | 3428 | start_force(PL_curforce); |
9ded7720 | 3429 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 | 3430 | force_next('('); |
cd81e915 | 3431 | start_force(PL_curforce); |
9ded7720 | 3432 | NEXTVAL_NEXTTOKE.ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
3433 | force_next(FUNC); |
3434 | } | |
3280af22 NIS |
3435 | if (PL_lex_starts++) { |
3436 | s = PL_bufptr; | |
5db06880 NC |
3437 | #ifdef PERL_MAD |
3438 | if (PL_madskills) { | |
cd81e915 NC |
3439 | if (PL_thistoken) |
3440 | sv_free(PL_thistoken); | |
6b29d1f5 | 3441 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3442 | } |
3443 | #endif | |
131b3ad0 DM |
3444 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3445 | if (!PL_lex_casemods && PL_lex_inpat) | |
3446 | OPERATOR(','); | |
3447 | else | |
3448 | Aop(OP_CONCAT); | |
79072805 | 3449 | } |
cea2e8a9 | 3450 | return yylex(); |
79072805 LW |
3451 | |
3452 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
3453 | if (intuit_more(PL_bufptr)) { |
3454 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
3455 | break; |
3456 | } | |
3457 | /* FALL THROUGH */ | |
3458 | ||
3459 | case LEX_INTERPEND: | |
3280af22 NIS |
3460 | if (PL_lex_dojoin) { |
3461 | PL_lex_dojoin = FALSE; | |
3462 | PL_lex_state = LEX_INTERPCONCAT; | |
5db06880 NC |
3463 | #ifdef PERL_MAD |
3464 | if (PL_madskills) { | |
cd81e915 NC |
3465 | if (PL_thistoken) |
3466 | sv_free(PL_thistoken); | |
6b29d1f5 | 3467 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3468 | } |
3469 | #endif | |
bbf60fe6 | 3470 | return REPORT(')'); |
79072805 | 3471 | } |
43a16006 | 3472 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 3473 | && SvEVALED(PL_lex_repl)) |
43a16006 | 3474 | { |
e9fa98b2 | 3475 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 3476 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
a0714e2c | 3477 | PL_lex_repl = NULL; |
e9fa98b2 | 3478 | } |
79072805 LW |
3479 | /* FALLTHROUGH */ |
3480 | case LEX_INTERPCONCAT: | |
3481 | #ifdef DEBUGGING | |
3280af22 | 3482 | if (PL_lex_brackets) |
cea2e8a9 | 3483 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 3484 | #endif |
3280af22 | 3485 | if (PL_bufptr == PL_bufend) |
bbf60fe6 | 3486 | return REPORT(sublex_done()); |
79072805 | 3487 | |
3280af22 NIS |
3488 | if (SvIVX(PL_linestr) == '\'') { |
3489 | SV *sv = newSVsv(PL_linestr); | |
3490 | if (!PL_lex_inpat) | |
76e3520e | 3491 | sv = tokeq(sv); |
3280af22 | 3492 | else if ( PL_hints & HINT_NEW_RE ) |
eb0d8d16 | 3493 | sv = new_constant(NULL, 0, "qr", sv, sv, "q", 1); |
6154021b | 3494 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 3495 | s = PL_bufend; |
79072805 LW |
3496 | } |
3497 | else { | |
3280af22 | 3498 | s = scan_const(PL_bufptr); |
79072805 | 3499 | if (*s == '\\') |
3280af22 | 3500 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 3501 | else |
3280af22 | 3502 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
3503 | } |
3504 | ||
3280af22 | 3505 | if (s != PL_bufptr) { |
cd81e915 | 3506 | start_force(PL_curforce); |
5db06880 NC |
3507 | if (PL_madskills) { |
3508 | curmad('X', newSVpvn(PL_bufptr,s-PL_bufptr)); | |
3509 | } | |
6154021b | 3510 | NEXTVAL_NEXTTOKE = pl_yylval; |
3280af22 | 3511 | PL_expect = XTERM; |
79072805 | 3512 | force_next(THING); |
131b3ad0 | 3513 | if (PL_lex_starts++) { |
5db06880 NC |
3514 | #ifdef PERL_MAD |
3515 | if (PL_madskills) { | |
cd81e915 NC |
3516 | if (PL_thistoken) |
3517 | sv_free(PL_thistoken); | |
6b29d1f5 | 3518 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
3519 | } |
3520 | #endif | |
131b3ad0 DM |
3521 | /* commas only at base level: /$a\Ub$c/ => ($a,uc(b.$c)) */ |
3522 | if (!PL_lex_casemods && PL_lex_inpat) | |
3523 | OPERATOR(','); | |
3524 | else | |
3525 | Aop(OP_CONCAT); | |
3526 | } | |
79072805 | 3527 | else { |
3280af22 | 3528 | PL_bufptr = s; |
cea2e8a9 | 3529 | return yylex(); |
79072805 LW |
3530 | } |
3531 | } | |
3532 | ||
cea2e8a9 | 3533 | return yylex(); |
a0d0e21e | 3534 | case LEX_FORMLINE: |
3280af22 NIS |
3535 | PL_lex_state = LEX_NORMAL; |
3536 | s = scan_formline(PL_bufptr); | |
3537 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
3538 | goto rightbracket; |
3539 | OPERATOR(';'); | |
79072805 LW |
3540 | } |
3541 | ||
3280af22 NIS |
3542 | s = PL_bufptr; |
3543 | PL_oldoldbufptr = PL_oldbufptr; | |
3544 | PL_oldbufptr = s; | |
463ee0b2 LW |
3545 | |
3546 | retry: | |
5db06880 | 3547 | #ifdef PERL_MAD |
cd81e915 NC |
3548 | if (PL_thistoken) { |
3549 | sv_free(PL_thistoken); | |
3550 | PL_thistoken = 0; | |
5db06880 | 3551 | } |
cd81e915 | 3552 | PL_realtokenstart = s - SvPVX(PL_linestr); /* assume but undo on ws */ |
5db06880 | 3553 | #endif |
378cc40b LW |
3554 | switch (*s) { |
3555 | default: | |
7e2040f0 | 3556 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 3557 | goto keylookup; |
987a03fc | 3558 | len = UTF ? Perl_utf8_length(aTHX_ (U8 *) PL_linestart, (U8 *) s) : (STRLEN) (s - PL_linestart); |
356c7adf | 3559 | Perl_croak(aTHX_ "Unrecognized character \\x%02X in column %d", *s & 255, (int) len + 1); |
e929a76b LW |
3560 | case 4: |
3561 | case 26: | |
3562 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 3563 | case 0: |
5db06880 NC |
3564 | #ifdef PERL_MAD |
3565 | if (PL_madskills) | |
cd81e915 | 3566 | PL_faketokens = 0; |
5db06880 | 3567 | #endif |
3280af22 NIS |
3568 | if (!PL_rsfp) { |
3569 | PL_last_uni = 0; | |
3570 | PL_last_lop = 0; | |
c5ee2135 | 3571 | if (PL_lex_brackets) { |
10edeb5d JH |
3572 | yyerror((const char *) |
3573 | (PL_lex_formbrack | |
3574 | ? "Format not terminated" | |
3575 | : "Missing right curly or square bracket")); | |
c5ee2135 | 3576 | } |
4e553d73 | 3577 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 | 3578 | "### Tokener got EOF\n"); |
5f80b19c | 3579 | } ); |
79072805 | 3580 | TOKEN(0); |
463ee0b2 | 3581 | } |
3280af22 | 3582 | if (s++ < PL_bufend) |
a687059c | 3583 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
3584 | PL_last_uni = 0; |
3585 | PL_last_lop = 0; | |
3586 | if (!PL_in_eval && !PL_preambled) { | |
3587 | PL_preambled = TRUE; | |
5db06880 NC |
3588 | #ifdef PERL_MAD |
3589 | if (PL_madskills) | |
cd81e915 | 3590 | PL_faketokens = 1; |
5db06880 | 3591 | #endif |
5ab7ff98 NC |
3592 | if (PL_perldb) { |
3593 | /* Generate a string of Perl code to load the debugger. | |
3594 | * If PERL5DB is set, it will return the contents of that, | |
3595 | * otherwise a compile-time require of perl5db.pl. */ | |
3596 | ||
3597 | const char * const pdb = PerlEnv_getenv("PERL5DB"); | |
3598 | ||
3599 | if (pdb) { | |
3600 | sv_setpv(PL_linestr, pdb); | |
3601 | sv_catpvs(PL_linestr,";"); | |
3602 | } else { | |
3603 | SETERRNO(0,SS_NORMAL); | |
3604 | sv_setpvs(PL_linestr, "BEGIN { require 'perl5db.pl' };"); | |
3605 | } | |
3606 | } else | |
3607 | sv_setpvs(PL_linestr,""); | |
c62eb204 NC |
3608 | if (PL_preambleav) { |
3609 | SV **svp = AvARRAY(PL_preambleav); | |
3610 | SV **const end = svp + AvFILLp(PL_preambleav); | |
3611 | while(svp <= end) { | |
3612 | sv_catsv(PL_linestr, *svp); | |
3613 | ++svp; | |
396482e1 | 3614 | sv_catpvs(PL_linestr, ";"); |
91b7def8 | 3615 | } |
3280af22 NIS |
3616 | sv_free((SV*)PL_preambleav); |
3617 | PL_preambleav = NULL; | |
91b7def8 | 3618 | } |
3280af22 | 3619 | if (PL_minus_n || PL_minus_p) { |
396482e1 | 3620 | sv_catpvs(PL_linestr, "LINE: while (<>) {"); |
3280af22 | 3621 | if (PL_minus_l) |
396482e1 | 3622 | sv_catpvs(PL_linestr,"chomp;"); |
3280af22 | 3623 | if (PL_minus_a) { |
3280af22 | 3624 | if (PL_minus_F) { |
3792a11b NC |
3625 | if ((*PL_splitstr == '/' || *PL_splitstr == '\'' |
3626 | || *PL_splitstr == '"') | |
3280af22 | 3627 | && strchr(PL_splitstr + 1, *PL_splitstr)) |
3db68c4c | 3628 | Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s);", PL_splitstr); |
54310121 | 3629 | else { |
c8ef6a4b NC |
3630 | /* "q\0${splitstr}\0" is legal perl. Yes, even NUL |
3631 | bytes can be used as quoting characters. :-) */ | |
dd374669 | 3632 | const char *splits = PL_splitstr; |
91d456ae | 3633 | sv_catpvs(PL_linestr, "our @F=split(q\0"); |
48c4c863 NC |
3634 | do { |
3635 | /* Need to \ \s */ | |
dd374669 AL |
3636 | if (*splits == '\\') |
3637 | sv_catpvn(PL_linestr, splits, 1); | |
3638 | sv_catpvn(PL_linestr, splits, 1); | |
3639 | } while (*splits++); | |
48c4c863 NC |
3640 | /* This loop will embed the trailing NUL of |
3641 | PL_linestr as the last thing it does before | |
3642 | terminating. */ | |
396482e1 | 3643 | sv_catpvs(PL_linestr, ");"); |
54310121 | 3644 | } |
2304df62 AD |
3645 | } |
3646 | else | |
396482e1 | 3647 | sv_catpvs(PL_linestr,"our @F=split(' ');"); |
2304df62 | 3648 | } |
79072805 | 3649 | } |
bc9b29db | 3650 | if (PL_minus_E) |
2cd48dfd NC |
3651 | sv_catpvs(PL_linestr, |
3652 | "use feature ':5." STRINGIFY(PERL_VERSION) "';"); | |
396482e1 | 3653 | sv_catpvs(PL_linestr, "\n"); |
3280af22 NIS |
3654 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3655 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3656 | PL_last_lop = PL_last_uni = NULL; |
80a702cd | 3657 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 3658 | update_debugger_info(PL_linestr, NULL, 0); |
79072805 | 3659 | goto retry; |
a687059c | 3660 | } |
e929a76b | 3661 | do { |
aa7440fb | 3662 | bof = PL_rsfp ? TRUE : FALSE; |
bd61b366 | 3663 | if ((s = filter_gets(PL_linestr, PL_rsfp, 0)) == NULL) { |
7e28d3af | 3664 | fake_eof: |
5db06880 | 3665 | #ifdef PERL_MAD |
cd81e915 | 3666 | PL_realtokenstart = -1; |
5db06880 | 3667 | #endif |
7e28d3af | 3668 | if (PL_rsfp) { |
4c84d7f2 | 3669 | if ((PerlIO *)PL_rsfp == PerlIO_stdin()) |
7e28d3af JH |
3670 | PerlIO_clearerr(PL_rsfp); |
3671 | else | |
3672 | (void)PerlIO_close(PL_rsfp); | |
4608196e | 3673 | PL_rsfp = NULL; |
7e28d3af JH |
3674 | PL_doextract = FALSE; |
3675 | } | |
3676 | if (!PL_in_eval && (PL_minus_n || PL_minus_p)) { | |
5db06880 NC |
3677 | #ifdef PERL_MAD |
3678 | if (PL_madskills) | |
cd81e915 | 3679 | PL_faketokens = 1; |
5db06880 | 3680 | #endif |
49a54bbe NC |
3681 | if (PL_minus_p) |
3682 | sv_setpvs(PL_linestr, ";}continue{print;}"); | |
3683 | else | |
3684 | sv_setpvs(PL_linestr, ";}"); | |
7e28d3af JH |
3685 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3686 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3687 | PL_last_lop = PL_last_uni = NULL; |
7e28d3af JH |
3688 | PL_minus_n = PL_minus_p = 0; |
3689 | goto retry; | |
3690 | } | |
3691 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
bd61b366 | 3692 | PL_last_lop = PL_last_uni = NULL; |
c69006e4 | 3693 | sv_setpvn(PL_linestr,"",0); |
7e28d3af JH |
3694 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ |
3695 | } | |
7aa207d6 JH |
3696 | /* If it looks like the start of a BOM or raw UTF-16, |
3697 | * check if it in fact is. */ | |
3698 | else if (bof && | |
3699 | (*s == 0 || | |
3700 | *(U8*)s == 0xEF || | |
3701 | *(U8*)s >= 0xFE || | |
3702 | s[1] == 0)) { | |
226017aa | 3703 | #ifdef PERLIO_IS_STDIO |
e3f494f1 JH |
3704 | # ifdef __GNU_LIBRARY__ |
3705 | # if __GNU_LIBRARY__ == 1 /* Linux glibc5 */ | |
226017aa DD |
3706 | # define FTELL_FOR_PIPE_IS_BROKEN |
3707 | # endif | |
e3f494f1 JH |
3708 | # else |
3709 | # ifdef __GLIBC__ | |
3710 | # if __GLIBC__ == 1 /* maybe some glibc5 release had it like this? */ | |
3711 | # define FTELL_FOR_PIPE_IS_BROKEN | |
3712 | # endif | |
3713 | # endif | |
226017aa DD |
3714 | # endif |
3715 | #endif | |
eb160463 | 3716 | bof = PerlIO_tell(PL_rsfp) == (Off_t)SvCUR(PL_linestr); |
7e28d3af | 3717 | if (bof) { |
3280af22 | 3718 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 3719 | s = swallow_bom((U8*)s); |
e929a76b | 3720 | } |
378cc40b | 3721 | } |
3280af22 | 3722 | if (PL_doextract) { |
a0d0e21e | 3723 | /* Incest with pod. */ |
5db06880 NC |
3724 | #ifdef PERL_MAD |
3725 | if (PL_madskills) | |
cd81e915 | 3726 | sv_catsv(PL_thiswhite, PL_linestr); |
5db06880 | 3727 | #endif |
01a57ef7 | 3728 | if (*s == '=' && strnEQ(s, "=cut", 4) && !isALPHA(s[4])) { |
c69006e4 | 3729 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3730 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3731 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3732 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3733 | PL_doextract = FALSE; |
a0d0e21e | 3734 | } |
4e553d73 | 3735 | } |
463ee0b2 | 3736 | incline(s); |
3280af22 NIS |
3737 | } while (PL_doextract); |
3738 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
80a702cd | 3739 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 3740 | update_debugger_info(PL_linestr, NULL, 0); |
3280af22 | 3741 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 3742 | PL_last_lop = PL_last_uni = NULL; |
57843af0 | 3743 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 3744 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 3745 | s++; |
a0d0e21e | 3746 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 3747 | s++; |
5db06880 NC |
3748 | #ifdef PERL_MAD |
3749 | if (PL_madskills) | |
cd81e915 | 3750 | PL_thiswhite = newSVpvn(PL_linestart, s - PL_linestart); |
5db06880 | 3751 | #endif |
bd61b366 | 3752 | d = NULL; |
3280af22 | 3753 | if (!PL_in_eval) { |
44a8e56a | 3754 | if (*s == '#' && *(s+1) == '!') |
3755 | d = s + 2; | |
3756 | #ifdef ALTERNATE_SHEBANG | |
3757 | else { | |
bfed75c6 | 3758 | static char const as[] = ALTERNATE_SHEBANG; |
44a8e56a | 3759 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) |
3760 | d = s + (sizeof(as) - 1); | |
3761 | } | |
3762 | #endif /* ALTERNATE_SHEBANG */ | |
3763 | } | |
3764 | if (d) { | |
b8378b72 | 3765 | char *ipath; |
774d564b | 3766 | char *ipathend; |
b8378b72 | 3767 | |
774d564b | 3768 | while (isSPACE(*d)) |
b8378b72 CS |
3769 | d++; |
3770 | ipath = d; | |
774d564b | 3771 | while (*d && !isSPACE(*d)) |
3772 | d++; | |
3773 | ipathend = d; | |
3774 | ||
3775 | #ifdef ARG_ZERO_IS_SCRIPT | |
3776 | if (ipathend > ipath) { | |
3777 | /* | |
3778 | * HP-UX (at least) sets argv[0] to the script name, | |
3779 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
3780 | * at least, set argv[0] to the basename of the Perl | |
3781 | * interpreter. So, having found "#!", we'll set it right. | |
3782 | */ | |
fafc274c NC |
3783 | SV * const x = GvSV(gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, |
3784 | SVt_PV)); /* $^X */ | |
774d564b | 3785 | assert(SvPOK(x) || SvGMAGICAL(x)); |
cc49e20b | 3786 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 3787 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 3788 | SvSETMAGIC(x); |
3789 | } | |
556c1dec JH |
3790 | else { |
3791 | STRLEN blen; | |
3792 | STRLEN llen; | |
cfd0369c | 3793 | const char *bstart = SvPV_const(CopFILESV(PL_curcop),blen); |
9d4ba2ae | 3794 | const char * const lstart = SvPV_const(x,llen); |
556c1dec JH |
3795 | if (llen < blen) { |
3796 | bstart += blen - llen; | |
3797 | if (strnEQ(bstart, lstart, llen) && bstart[-1] == '/') { | |
3798 | sv_setpvn(x, ipath, ipathend - ipath); | |
3799 | SvSETMAGIC(x); | |
3800 | } | |
3801 | } | |
3802 | } | |
774d564b | 3803 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 3804 | } |
774d564b | 3805 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
3806 | |
3807 | /* | |
3808 | * Look for options. | |
3809 | */ | |
748a9306 | 3810 | d = instr(s,"perl -"); |
84e30d1a | 3811 | if (!d) { |
748a9306 | 3812 | d = instr(s,"perl"); |
84e30d1a GS |
3813 | #if defined(DOSISH) |
3814 | /* avoid getting into infinite loops when shebang | |
3815 | * line contains "Perl" rather than "perl" */ | |
3816 | if (!d) { | |
3817 | for (d = ipathend-4; d >= ipath; --d) { | |
3818 | if ((*d == 'p' || *d == 'P') | |
3819 | && !ibcmp(d, "perl", 4)) | |
3820 | { | |
3821 | break; | |
3822 | } | |
3823 | } | |
3824 | if (d < ipath) | |
bd61b366 | 3825 | d = NULL; |
84e30d1a GS |
3826 | } |
3827 | #endif | |
3828 | } | |
44a8e56a | 3829 | #ifdef ALTERNATE_SHEBANG |
3830 | /* | |
3831 | * If the ALTERNATE_SHEBANG on this system starts with a | |
3832 | * character that can be part of a Perl expression, then if | |
3833 | * we see it but not "perl", we're probably looking at the | |
3834 | * start of Perl code, not a request to hand off to some | |
3835 | * other interpreter. Similarly, if "perl" is there, but | |
3836 | * not in the first 'word' of the line, we assume the line | |
3837 | * contains the start of the Perl program. | |
44a8e56a | 3838 | */ |
3839 | if (d && *s != '#') { | |
f54cb97a | 3840 | const char *c = ipath; |
44a8e56a | 3841 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
3842 | c++; | |
3843 | if (c < d) | |
bd61b366 | 3844 | d = NULL; /* "perl" not in first word; ignore */ |
44a8e56a | 3845 | else |
3846 | *s = '#'; /* Don't try to parse shebang line */ | |
3847 | } | |
774d564b | 3848 | #endif /* ALTERNATE_SHEBANG */ |
bf4acbe4 | 3849 | #ifndef MACOS_TRADITIONAL |
748a9306 | 3850 | if (!d && |
44a8e56a | 3851 | *s == '#' && |
774d564b | 3852 | ipathend > ipath && |
3280af22 | 3853 | !PL_minus_c && |
748a9306 | 3854 | !instr(s,"indir") && |
3280af22 | 3855 | instr(PL_origargv[0],"perl")) |
748a9306 | 3856 | { |
27da23d5 | 3857 | dVAR; |
9f68db38 | 3858 | char **newargv; |
9f68db38 | 3859 | |
774d564b | 3860 | *ipathend = '\0'; |
3861 | s = ipathend + 1; | |
3280af22 | 3862 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 3863 | s++; |
3280af22 | 3864 | if (s < PL_bufend) { |
a02a5408 | 3865 | Newxz(newargv,PL_origargc+3,char*); |
9f68db38 | 3866 | newargv[1] = s; |
3280af22 | 3867 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
3868 | s++; |
3869 | *s = '\0'; | |
3280af22 | 3870 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
3871 | } |
3872 | else | |
3280af22 | 3873 | newargv = PL_origargv; |
774d564b | 3874 | newargv[0] = ipath; |
b35112e7 | 3875 | PERL_FPU_PRE_EXEC |
b4748376 | 3876 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
b35112e7 | 3877 | PERL_FPU_POST_EXEC |
cea2e8a9 | 3878 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 3879 | } |
bf4acbe4 | 3880 | #endif |
748a9306 | 3881 | if (d) { |
c35e046a AL |
3882 | while (*d && !isSPACE(*d)) |
3883 | d++; | |
3884 | while (SPACE_OR_TAB(*d)) | |
3885 | d++; | |
748a9306 LW |
3886 | |
3887 | if (*d++ == '-') { | |
f54cb97a | 3888 | const bool switches_done = PL_doswitches; |
fb993905 GA |
3889 | const U32 oldpdb = PL_perldb; |
3890 | const bool oldn = PL_minus_n; | |
3891 | const bool oldp = PL_minus_p; | |
c7030b81 | 3892 | const char *d1 = d; |
fb993905 | 3893 | |
8cc95fdb | 3894 | do { |
c7030b81 NC |
3895 | if (*d1 == 'M' || *d1 == 'm' || *d1 == 'C') { |
3896 | const char * const m = d1; | |
3897 | while (*d1 && !isSPACE(*d1)) | |
3898 | d1++; | |
cea2e8a9 | 3899 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
c7030b81 | 3900 | (int)(d1 - m), m); |
8cc95fdb | 3901 | } |
c7030b81 NC |
3902 | d1 = moreswitches(d1); |
3903 | } while (d1); | |
f0b2cf55 YST |
3904 | if (PL_doswitches && !switches_done) { |
3905 | int argc = PL_origargc; | |
3906 | char **argv = PL_origargv; | |
3907 | do { | |
3908 | argc--,argv++; | |
3909 | } while (argc && argv[0][0] == '-' && argv[0][1]); | |
3910 | init_argv_symbols(argc,argv); | |
3911 | } | |
155aba94 GS |
3912 | if ((PERLDB_LINE && !oldpdb) || |
3913 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) | |
b084f20b | 3914 | /* if we have already added "LINE: while (<>) {", |
3915 | we must not do it again */ | |
748a9306 | 3916 | { |
c69006e4 | 3917 | sv_setpvn(PL_linestr, "", 0); |
3280af22 NIS |
3918 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); |
3919 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 3920 | PL_last_lop = PL_last_uni = NULL; |
3280af22 | 3921 | PL_preambled = FALSE; |
84902520 | 3922 | if (PERLDB_LINE) |
3280af22 | 3923 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
3924 | goto retry; |
3925 | } | |
a0d0e21e | 3926 | } |
79072805 | 3927 | } |
9f68db38 | 3928 | } |
79072805 | 3929 | } |
3280af22 NIS |
3930 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3931 | PL_bufptr = s; | |
3932 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3933 | return yylex(); |
ae986130 | 3934 | } |
378cc40b | 3935 | goto retry; |
4fdae800 | 3936 | case '\r': |
6a27c188 | 3937 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 3938 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 3939 | Perl_croak(aTHX_ |
cc507455 | 3940 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 3941 | #endif |
4fdae800 | 3942 | case ' ': case '\t': case '\f': case 013: |
bf4acbe4 GS |
3943 | #ifdef MACOS_TRADITIONAL |
3944 | case '\312': | |
3945 | #endif | |
5db06880 | 3946 | #ifdef PERL_MAD |
cd81e915 | 3947 | PL_realtokenstart = -1; |
ac372eb8 RD |
3948 | if (!PL_thiswhite) |
3949 | PL_thiswhite = newSVpvs(""); | |
3950 | sv_catpvn(PL_thiswhite, s, 1); | |
5db06880 | 3951 | #endif |
ac372eb8 | 3952 | s++; |
378cc40b | 3953 | goto retry; |
378cc40b | 3954 | case '#': |
e929a76b | 3955 | case '\n': |
5db06880 | 3956 | #ifdef PERL_MAD |
cd81e915 | 3957 | PL_realtokenstart = -1; |
5db06880 | 3958 | if (PL_madskills) |
cd81e915 | 3959 | PL_faketokens = 0; |
5db06880 | 3960 | #endif |
3280af22 | 3961 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
3962 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
3963 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
3964 | CopLINE_dec(PL_curcop); | |
3965 | incline(s); | |
3966 | } | |
5db06880 NC |
3967 | if (PL_madskills && !PL_lex_formbrack && !PL_in_eval) { |
3968 | s = SKIPSPACE0(s); | |
3969 | if (!PL_in_eval || PL_rsfp) | |
3970 | incline(s); | |
3971 | } | |
3972 | else { | |
3973 | d = s; | |
3974 | while (d < PL_bufend && *d != '\n') | |
3975 | d++; | |
3976 | if (d < PL_bufend) | |
3977 | d++; | |
3978 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
3979 | Perl_croak(aTHX_ "panic: input overflow"); | |
3980 | #ifdef PERL_MAD | |
3981 | if (PL_madskills) | |
cd81e915 | 3982 | PL_thiswhite = newSVpvn(s, d - s); |
5db06880 NC |
3983 | #endif |
3984 | s = d; | |
3985 | incline(s); | |
3986 | } | |
3280af22 NIS |
3987 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
3988 | PL_bufptr = s; | |
3989 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 3990 | return yylex(); |
a687059c | 3991 | } |
378cc40b | 3992 | } |
a687059c | 3993 | else { |
5db06880 NC |
3994 | #ifdef PERL_MAD |
3995 | if (PL_madskills && CopLINE(PL_curcop) >= 1 && !PL_lex_formbrack) { | |
3996 | if (CopLINE(PL_curcop) == 1 && s[0] == '#' && s[1] == '!') { | |
cd81e915 | 3997 | PL_faketokens = 0; |
5db06880 NC |
3998 | s = SKIPSPACE0(s); |
3999 | TOKEN(PEG); /* make sure any #! line is accessible */ | |
4000 | } | |
4001 | s = SKIPSPACE0(s); | |
4002 | } | |
4003 | else { | |
4004 | /* if (PL_madskills && PL_lex_formbrack) { */ | |
4005 | d = s; | |
4006 | while (d < PL_bufend && *d != '\n') | |
4007 | d++; | |
4008 | if (d < PL_bufend) | |
4009 | d++; | |
4010 | else if (d > PL_bufend) /* Found by Ilya: feed random input to Perl. */ | |
4011 | Perl_croak(aTHX_ "panic: input overflow"); | |
4012 | if (PL_madskills && CopLINE(PL_curcop) >= 1) { | |
cd81e915 | 4013 | if (!PL_thiswhite) |
6b29d1f5 | 4014 | PL_thiswhite = newSVpvs(""); |
5db06880 | 4015 | if (CopLINE(PL_curcop) == 1) { |
cd81e915 NC |
4016 | sv_setpvn(PL_thiswhite, "", 0); |
4017 | PL_faketokens = 0; | |
5db06880 | 4018 | } |
cd81e915 | 4019 | sv_catpvn(PL_thiswhite, s, d - s); |
5db06880 NC |
4020 | } |
4021 | s = d; | |
4022 | /* } | |
4023 | *s = '\0'; | |
4024 | PL_bufend = s; */ | |
4025 | } | |
4026 | #else | |
378cc40b | 4027 | *s = '\0'; |
3280af22 | 4028 | PL_bufend = s; |
5db06880 | 4029 | #endif |
a687059c | 4030 | } |
378cc40b LW |
4031 | goto retry; |
4032 | case '-': | |
79072805 | 4033 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 | 4034 | I32 ftst = 0; |
90771dc0 | 4035 | char tmp; |
e5edeb50 | 4036 | |
378cc40b | 4037 | s++; |
3280af22 | 4038 | PL_bufptr = s; |
748a9306 LW |
4039 | tmp = *s++; |
4040 | ||
bf4acbe4 | 4041 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
4042 | s++; |
4043 | ||
4044 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 4045 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
931e0695 | 4046 | DEBUG_T( { printbuf("### Saw unary minus before =>, forcing word %s\n", s); } ); |
748a9306 LW |
4047 | OPERATOR('-'); /* unary minus */ |
4048 | } | |
3280af22 | 4049 | PL_last_uni = PL_oldbufptr; |
748a9306 | 4050 | switch (tmp) { |
e5edeb50 JH |
4051 | case 'r': ftst = OP_FTEREAD; break; |
4052 | case 'w': ftst = OP_FTEWRITE; break; | |
4053 | case 'x': ftst = OP_FTEEXEC; break; | |
4054 | case 'o': ftst = OP_FTEOWNED; break; | |
4055 | case 'R': ftst = OP_FTRREAD; break; | |
4056 | case 'W': ftst = OP_FTRWRITE; break; | |
4057 | case 'X': ftst = OP_FTREXEC; break; | |
4058 | case 'O': ftst = OP_FTROWNED; break; | |
4059 | case 'e': ftst = OP_FTIS; break; | |
4060 | case 'z': ftst = OP_FTZERO; break; | |
4061 | case 's': ftst = OP_FTSIZE; break; | |
4062 | case 'f': ftst = OP_FTFILE; break; | |
4063 | case 'd': ftst = OP_FTDIR; break; | |
4064 | case 'l': ftst = OP_FTLINK; break; | |
4065 | case 'p': ftst = OP_FTPIPE; break; | |
4066 | case 'S': ftst = OP_FTSOCK; break; | |
4067 | case 'u': ftst = OP_FTSUID; break; | |
4068 | case 'g': ftst = OP_FTSGID; break; | |
4069 | case 'k': ftst = OP_FTSVTX; break; | |
4070 | case 'b': ftst = OP_FTBLK; break; | |
4071 | case 'c': ftst = OP_FTCHR; break; | |
4072 | case 't': ftst = OP_FTTTY; break; | |
4073 | case 'T': ftst = OP_FTTEXT; break; | |
4074 | case 'B': ftst = OP_FTBINARY; break; | |
4075 | case 'M': case 'A': case 'C': | |
fafc274c | 4076 | gv_fetchpvs("\024", GV_ADD|GV_NOTQUAL, SVt_PV); |
e5edeb50 JH |
4077 | switch (tmp) { |
4078 | case 'M': ftst = OP_FTMTIME; break; | |
4079 | case 'A': ftst = OP_FTATIME; break; | |
4080 | case 'C': ftst = OP_FTCTIME; break; | |
4081 | default: break; | |
4082 | } | |
4083 | break; | |
378cc40b | 4084 | default: |
378cc40b LW |
4085 | break; |
4086 | } | |
e5edeb50 | 4087 | if (ftst) { |
eb160463 | 4088 | PL_last_lop_op = (OPCODE)ftst; |
4e553d73 | 4089 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
a18d764d | 4090 | "### Saw file test %c\n", (int)tmp); |
5f80b19c | 4091 | } ); |
e5edeb50 JH |
4092 | FTST(ftst); |
4093 | } | |
4094 | else { | |
4095 | /* Assume it was a minus followed by a one-letter named | |
4096 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 4097 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
17ad61e0 | 4098 | "### '-%c' looked like a file test but was not\n", |
4fccd7c6 | 4099 | (int) tmp); |
5f80b19c | 4100 | } ); |
3cf7b4c4 | 4101 | s = --PL_bufptr; |
e5edeb50 | 4102 | } |
378cc40b | 4103 | } |
90771dc0 NC |
4104 | { |
4105 | const char tmp = *s++; | |
4106 | if (*s == tmp) { | |
4107 | s++; | |
4108 | if (PL_expect == XOPERATOR) | |
4109 | TERM(POSTDEC); | |
4110 | else | |
4111 | OPERATOR(PREDEC); | |
4112 | } | |
4113 | else if (*s == '>') { | |
4114 | s++; | |
29595ff2 | 4115 | s = SKIPSPACE1(s); |
90771dc0 NC |
4116 | if (isIDFIRST_lazy_if(s,UTF)) { |
4117 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); | |
4118 | TOKEN(ARROW); | |
4119 | } | |
4120 | else if (*s == '$') | |
4121 | OPERATOR(ARROW); | |
4122 | else | |
4123 | TERM(ARROW); | |
4124 | } | |
3280af22 | 4125 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4126 | Aop(OP_SUBTRACT); |
4127 | else { | |
4128 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4129 | check_uni(); | |
4130 | OPERATOR('-'); /* unary minus */ | |
79072805 | 4131 | } |
2f3197b3 | 4132 | } |
79072805 | 4133 | |
378cc40b | 4134 | case '+': |
90771dc0 NC |
4135 | { |
4136 | const char tmp = *s++; | |
4137 | if (*s == tmp) { | |
4138 | s++; | |
4139 | if (PL_expect == XOPERATOR) | |
4140 | TERM(POSTINC); | |
4141 | else | |
4142 | OPERATOR(PREINC); | |
4143 | } | |
3280af22 | 4144 | if (PL_expect == XOPERATOR) |
90771dc0 NC |
4145 | Aop(OP_ADD); |
4146 | else { | |
4147 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) | |
4148 | check_uni(); | |
4149 | OPERATOR('+'); | |
4150 | } | |
2f3197b3 | 4151 | } |
a687059c | 4152 | |
378cc40b | 4153 | case '*': |
3280af22 NIS |
4154 | if (PL_expect != XOPERATOR) { |
4155 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
4156 | PL_expect = XOPERATOR; | |
4157 | force_ident(PL_tokenbuf, '*'); | |
4158 | if (!*PL_tokenbuf) | |
a0d0e21e | 4159 | PREREF('*'); |
79072805 | 4160 | TERM('*'); |
a687059c | 4161 | } |
79072805 LW |
4162 | s++; |
4163 | if (*s == '*') { | |
a687059c | 4164 | s++; |
79072805 | 4165 | PWop(OP_POW); |
a687059c | 4166 | } |
79072805 LW |
4167 | Mop(OP_MULTIPLY); |
4168 | ||
378cc40b | 4169 | case '%': |
3280af22 | 4170 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 4171 | ++s; |
4172 | Mop(OP_MODULO); | |
a687059c | 4173 | } |
3280af22 | 4174 | PL_tokenbuf[0] = '%'; |
e8ae98db RGS |
4175 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
4176 | sizeof PL_tokenbuf - 1, FALSE); | |
3280af22 | 4177 | if (!PL_tokenbuf[1]) { |
bbce6d69 | 4178 | PREREF('%'); |
a687059c | 4179 | } |
3280af22 | 4180 | PL_pending_ident = '%'; |
bbce6d69 | 4181 | TERM('%'); |
a687059c | 4182 | |
378cc40b | 4183 | case '^': |
79072805 | 4184 | s++; |
a0d0e21e | 4185 | BOop(OP_BIT_XOR); |
79072805 | 4186 | case '[': |
3280af22 | 4187 | PL_lex_brackets++; |
79072805 | 4188 | /* FALL THROUGH */ |
378cc40b | 4189 | case '~': |
0d863452 | 4190 | if (s[1] == '~' |
3e7dd34d | 4191 | && (PL_expect == XOPERATOR || PL_expect == XTERMORDORDOR)) |
0d863452 RH |
4192 | { |
4193 | s += 2; | |
4194 | Eop(OP_SMARTMATCH); | |
4195 | } | |
378cc40b | 4196 | case ',': |
90771dc0 NC |
4197 | { |
4198 | const char tmp = *s++; | |
4199 | OPERATOR(tmp); | |
4200 | } | |
a0d0e21e LW |
4201 | case ':': |
4202 | if (s[1] == ':') { | |
4203 | len = 0; | |
0bfa2a8a | 4204 | goto just_a_word_zero_gv; |
a0d0e21e LW |
4205 | } |
4206 | s++; | |
09bef843 SB |
4207 | switch (PL_expect) { |
4208 | OP *attrs; | |
5db06880 NC |
4209 | #ifdef PERL_MAD |
4210 | I32 stuffstart; | |
4211 | #endif | |
09bef843 SB |
4212 | case XOPERATOR: |
4213 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
4214 | break; | |
4215 | PL_bufptr = s; /* update in case we back off */ | |
4216 | goto grabattrs; | |
4217 | case XATTRBLOCK: | |
4218 | PL_expect = XBLOCK; | |
4219 | goto grabattrs; | |
4220 | case XATTRTERM: | |
4221 | PL_expect = XTERMBLOCK; | |
4222 | grabattrs: | |
5db06880 NC |
4223 | #ifdef PERL_MAD |
4224 | stuffstart = s - SvPVX(PL_linestr) - 1; | |
4225 | #endif | |
29595ff2 | 4226 | s = PEEKSPACE(s); |
5f66b61c | 4227 | attrs = NULL; |
7e2040f0 | 4228 | while (isIDFIRST_lazy_if(s,UTF)) { |
90771dc0 | 4229 | I32 tmp; |
5cc237b8 | 4230 | SV *sv; |
09bef843 | 4231 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 4232 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len, 0))) { |
f9829d6b GS |
4233 | if (tmp < 0) tmp = -tmp; |
4234 | switch (tmp) { | |
4235 | case KEY_or: | |
4236 | case KEY_and: | |
4237 | case KEY_for: | |
4238 | case KEY_unless: | |
4239 | case KEY_if: | |
4240 | case KEY_while: | |
4241 | case KEY_until: | |
4242 | goto got_attrs; | |
4243 | default: | |
4244 | break; | |
4245 | } | |
4246 | } | |
5cc237b8 | 4247 | sv = newSVpvn(s, len); |
09bef843 SB |
4248 | if (*d == '(') { |
4249 | d = scan_str(d,TRUE,TRUE); | |
4250 | if (!d) { | |
09bef843 SB |
4251 | /* MUST advance bufptr here to avoid bogus |
4252 | "at end of line" context messages from yyerror(). | |
4253 | */ | |
4254 | PL_bufptr = s + len; | |
4255 | yyerror("Unterminated attribute parameter in attribute list"); | |
4256 | if (attrs) | |
4257 | op_free(attrs); | |
5cc237b8 | 4258 | sv_free(sv); |
bbf60fe6 | 4259 | return REPORT(0); /* EOF indicator */ |
09bef843 SB |
4260 | } |
4261 | } | |
4262 | if (PL_lex_stuff) { | |
09bef843 SB |
4263 | sv_catsv(sv, PL_lex_stuff); |
4264 | attrs = append_elem(OP_LIST, attrs, | |
4265 | newSVOP(OP_CONST, 0, sv)); | |
4266 | SvREFCNT_dec(PL_lex_stuff); | |
a0714e2c | 4267 | PL_lex_stuff = NULL; |
09bef843 SB |
4268 | } |
4269 | else { | |
5cc237b8 BS |
4270 | if (len == 6 && strnEQ(SvPVX(sv), "unique", len)) { |
4271 | sv_free(sv); | |
1108974d | 4272 | if (PL_in_my == KEY_our) { |
371fce9b | 4273 | #ifdef USE_ITHREADS |
6154021b | 4274 | GvUNIQUE_on(cGVOPx_gv(pl_yylval.opval)); |
371fce9b | 4275 | #else |
1108974d | 4276 | /* skip to avoid loading attributes.pm */ |
371fce9b | 4277 | #endif |
df9a6019 | 4278 | deprecate(":unique"); |
1108974d | 4279 | } |
bfed75c6 | 4280 | else |
371fce9b DM |
4281 | Perl_croak(aTHX_ "The 'unique' attribute may only be applied to 'our' variables"); |
4282 | } | |
4283 | ||
d3cea301 SB |
4284 | /* NOTE: any CV attrs applied here need to be part of |
4285 | the CVf_BUILTIN_ATTRS define in cv.h! */ | |
5cc237b8 BS |
4286 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "lvalue", len)) { |
4287 | sv_free(sv); | |
78f9721b | 4288 | CvLVALUE_on(PL_compcv); |
5cc237b8 BS |
4289 | } |
4290 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "locked", len)) { | |
4291 | sv_free(sv); | |
78f9721b | 4292 | CvLOCKED_on(PL_compcv); |
5cc237b8 BS |
4293 | } |
4294 | else if (!PL_in_my && len == 6 && strnEQ(SvPVX(sv), "method", len)) { | |
4295 | sv_free(sv); | |
78f9721b | 4296 | CvMETHOD_on(PL_compcv); |
5cc237b8 | 4297 | } |
78f9721b SM |
4298 | /* After we've set the flags, it could be argued that |
4299 | we don't need to do the attributes.pm-based setting | |
4300 | process, and shouldn't bother appending recognized | |
d3cea301 SB |
4301 | flags. To experiment with that, uncomment the |
4302 | following "else". (Note that's already been | |
4303 | uncommented. That keeps the above-applied built-in | |
4304 | attributes from being intercepted (and possibly | |
4305 | rejected) by a package's attribute routines, but is | |
4306 | justified by the performance win for the common case | |
4307 | of applying only built-in attributes.) */ | |
0256094b | 4308 | else |
78f9721b SM |
4309 | attrs = append_elem(OP_LIST, attrs, |
4310 | newSVOP(OP_CONST, 0, | |
5cc237b8 | 4311 | sv)); |
09bef843 | 4312 | } |
29595ff2 | 4313 | s = PEEKSPACE(d); |
0120eecf | 4314 | if (*s == ':' && s[1] != ':') |
29595ff2 | 4315 | s = PEEKSPACE(s+1); |
0120eecf GS |
4316 | else if (s == d) |
4317 | break; /* require real whitespace or :'s */ | |
29595ff2 | 4318 | /* XXX losing whitespace on sequential attributes here */ |
09bef843 | 4319 | } |
90771dc0 NC |
4320 | { |
4321 | const char tmp | |
4322 | = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ | |
4323 | if (*s != ';' && *s != '}' && *s != tmp | |
4324 | && (tmp != '=' || *s != ')')) { | |
4325 | const char q = ((*s == '\'') ? '"' : '\''); | |
4326 | /* If here for an expression, and parsed no attrs, back | |
4327 | off. */ | |
4328 | if (tmp == '=' && !attrs) { | |
4329 | s = PL_bufptr; | |
4330 | break; | |
4331 | } | |
4332 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
4333 | context messages from yyerror(). | |
4334 | */ | |
4335 | PL_bufptr = s; | |
10edeb5d JH |
4336 | yyerror( (const char *) |
4337 | (*s | |
4338 | ? Perl_form(aTHX_ "Invalid separator character " | |
4339 | "%c%c%c in attribute list", q, *s, q) | |
4340 | : "Unterminated attribute list" ) ); | |
90771dc0 NC |
4341 | if (attrs) |
4342 | op_free(attrs); | |
4343 | OPERATOR(':'); | |
09bef843 | 4344 | } |
09bef843 | 4345 | } |
f9829d6b | 4346 | got_attrs: |
09bef843 | 4347 | if (attrs) { |
cd81e915 | 4348 | start_force(PL_curforce); |
9ded7720 | 4349 | NEXTVAL_NEXTTOKE.opval = attrs; |
cd81e915 | 4350 | CURMAD('_', PL_nextwhite); |
89122651 | 4351 | force_next(THING); |
5db06880 NC |
4352 | } |
4353 | #ifdef PERL_MAD | |
4354 | if (PL_madskills) { | |
cd81e915 | 4355 | PL_thistoken = newSVpvn(SvPVX(PL_linestr) + stuffstart, |
5db06880 | 4356 | (s - SvPVX(PL_linestr)) - stuffstart); |
09bef843 | 4357 | } |
5db06880 | 4358 | #endif |
09bef843 SB |
4359 | TOKEN(COLONATTR); |
4360 | } | |
a0d0e21e | 4361 | OPERATOR(':'); |
8990e307 LW |
4362 | case '(': |
4363 | s++; | |
3280af22 NIS |
4364 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
4365 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 4366 | else |
3280af22 | 4367 | PL_expect = XTERM; |
29595ff2 | 4368 | s = SKIPSPACE1(s); |
a0d0e21e | 4369 | TOKEN('('); |
378cc40b | 4370 | case ';': |
f4dd75d9 | 4371 | CLINE; |
90771dc0 NC |
4372 | { |
4373 | const char tmp = *s++; | |
4374 | OPERATOR(tmp); | |
4375 | } | |
378cc40b | 4376 | case ')': |
90771dc0 NC |
4377 | { |
4378 | const char tmp = *s++; | |
29595ff2 | 4379 | s = SKIPSPACE1(s); |
90771dc0 NC |
4380 | if (*s == '{') |
4381 | PREBLOCK(tmp); | |
4382 | TERM(tmp); | |
4383 | } | |
79072805 LW |
4384 | case ']': |
4385 | s++; | |
3280af22 | 4386 | if (PL_lex_brackets <= 0) |
d98d5fff | 4387 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 4388 | else |
3280af22 NIS |
4389 | --PL_lex_brackets; |
4390 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4391 | if (PL_lex_brackets == 0) { | |
02255c60 FC |
4392 | if (*s == '-' && s[1] == '>') |
4393 | PL_lex_state = LEX_INTERPENDMAYBE; | |
4394 | else if (*s != '[' && *s != '{') | |
3280af22 | 4395 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4396 | } |
4397 | } | |
4633a7c4 | 4398 | TERM(']'); |
79072805 LW |
4399 | case '{': |
4400 | leftbracket: | |
79072805 | 4401 | s++; |
3280af22 | 4402 | if (PL_lex_brackets > 100) { |
8edd5f42 | 4403 | Renew(PL_lex_brackstack, PL_lex_brackets + 10, char); |
8990e307 | 4404 | } |
3280af22 | 4405 | switch (PL_expect) { |
a0d0e21e | 4406 | case XTERM: |
3280af22 | 4407 | if (PL_lex_formbrack) { |
a0d0e21e LW |
4408 | s--; |
4409 | PRETERMBLOCK(DO); | |
4410 | } | |
3280af22 NIS |
4411 | if (PL_oldoldbufptr == PL_last_lop) |
4412 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4413 | else |
3280af22 | 4414 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 4415 | OPERATOR(HASHBRACK); |
a0d0e21e | 4416 | case XOPERATOR: |
bf4acbe4 | 4417 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 4418 | s++; |
44a8e56a | 4419 | d = s; |
3280af22 NIS |
4420 | PL_tokenbuf[0] = '\0'; |
4421 | if (d < PL_bufend && *d == '-') { | |
4422 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 4423 | d++; |
bf4acbe4 | 4424 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 4425 | d++; |
4426 | } | |
7e2040f0 | 4427 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 4428 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 4429 | FALSE, &len); |
bf4acbe4 | 4430 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
4431 | d++; |
4432 | if (*d == '}') { | |
f54cb97a | 4433 | const char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 4434 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
4435 | if (minus) | |
4436 | force_next('-'); | |
748a9306 LW |
4437 | } |
4438 | } | |
4439 | /* FALL THROUGH */ | |
09bef843 | 4440 | case XATTRBLOCK: |
748a9306 | 4441 | case XBLOCK: |
3280af22 NIS |
4442 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
4443 | PL_expect = XSTATE; | |
a0d0e21e | 4444 | break; |
09bef843 | 4445 | case XATTRTERM: |
a0d0e21e | 4446 | case XTERMBLOCK: |
3280af22 NIS |
4447 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
4448 | PL_expect = XSTATE; | |
a0d0e21e LW |
4449 | break; |
4450 | default: { | |
f54cb97a | 4451 | const char *t; |
3280af22 NIS |
4452 | if (PL_oldoldbufptr == PL_last_lop) |
4453 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 4454 | else |
3280af22 | 4455 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
29595ff2 | 4456 | s = SKIPSPACE1(s); |
8452ff4b SB |
4457 | if (*s == '}') { |
4458 | if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) { | |
4459 | PL_expect = XTERM; | |
4460 | /* This hack is to get the ${} in the message. */ | |
4461 | PL_bufptr = s+1; | |
4462 | yyerror("syntax error"); | |
4463 | break; | |
4464 | } | |
a0d0e21e | 4465 | OPERATOR(HASHBRACK); |
8452ff4b | 4466 | } |
b8a4b1be GS |
4467 | /* This hack serves to disambiguate a pair of curlies |
4468 | * as being a block or an anon hash. Normally, expectation | |
4469 | * determines that, but in cases where we're not in a | |
4470 | * position to expect anything in particular (like inside | |
4471 | * eval"") we have to resolve the ambiguity. This code | |
4472 | * covers the case where the first term in the curlies is a | |
4473 | * quoted string. Most other cases need to be explicitly | |
a0288114 | 4474 | * disambiguated by prepending a "+" before the opening |
b8a4b1be GS |
4475 | * curly in order to force resolution as an anon hash. |
4476 | * | |
4477 | * XXX should probably propagate the outer expectation | |
4478 | * into eval"" to rely less on this hack, but that could | |
4479 | * potentially break current behavior of eval"". | |
4480 | * GSAR 97-07-21 | |
4481 | */ | |
4482 | t = s; | |
4483 | if (*s == '\'' || *s == '"' || *s == '`') { | |
4484 | /* common case: get past first string, handling escapes */ | |
3280af22 | 4485 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
4486 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
4487 | t++; | |
4488 | t++; | |
a0d0e21e | 4489 | } |
b8a4b1be | 4490 | else if (*s == 'q') { |
3280af22 | 4491 | if (++t < PL_bufend |
b8a4b1be | 4492 | && (!isALNUM(*t) |
3280af22 | 4493 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
4494 | && !isALNUM(*t)))) |
4495 | { | |
abc667d1 | 4496 | /* skip q//-like construct */ |
f54cb97a | 4497 | const char *tmps; |
b8a4b1be GS |
4498 | char open, close, term; |
4499 | I32 brackets = 1; | |
4500 | ||
3280af22 | 4501 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be | 4502 | t++; |
abc667d1 DM |
4503 | /* check for q => */ |
4504 | if (t+1 < PL_bufend && t[0] == '=' && t[1] == '>') { | |
4505 | OPERATOR(HASHBRACK); | |
4506 | } | |
b8a4b1be GS |
4507 | term = *t; |
4508 | open = term; | |
4509 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
4510 | term = tmps[5]; | |
4511 | close = term; | |
4512 | if (open == close) | |
3280af22 NIS |
4513 | for (t++; t < PL_bufend; t++) { |
4514 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 4515 | t++; |
6d07e5e9 | 4516 | else if (*t == open) |
b8a4b1be GS |
4517 | break; |
4518 | } | |
abc667d1 | 4519 | else { |
3280af22 NIS |
4520 | for (t++; t < PL_bufend; t++) { |
4521 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 4522 | t++; |
6d07e5e9 | 4523 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
4524 | break; |
4525 | else if (*t == open) | |
4526 | brackets++; | |
4527 | } | |
abc667d1 DM |
4528 | } |
4529 | t++; | |
b8a4b1be | 4530 | } |
abc667d1 DM |
4531 | else |
4532 | /* skip plain q word */ | |
4533 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) | |
4534 | t += UTF8SKIP(t); | |
a0d0e21e | 4535 | } |
7e2040f0 | 4536 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 4537 | t += UTF8SKIP(t); |
7e2040f0 | 4538 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 4539 | t += UTF8SKIP(t); |
a0d0e21e | 4540 | } |
3280af22 | 4541 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 4542 | t++; |
b8a4b1be GS |
4543 | /* if comma follows first term, call it an anon hash */ |
4544 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 4545 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 4546 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 4547 | OPERATOR(HASHBRACK); |
3280af22 | 4548 | if (PL_expect == XREF) |
4e4e412b | 4549 | PL_expect = XTERM; |
a0d0e21e | 4550 | else { |
3280af22 NIS |
4551 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
4552 | PL_expect = XSTATE; | |
a0d0e21e | 4553 | } |
8990e307 | 4554 | } |
a0d0e21e | 4555 | break; |
463ee0b2 | 4556 | } |
6154021b | 4557 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 | 4558 | if (isSPACE(*s) || *s == '#') |
3280af22 | 4559 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 4560 | TOKEN('{'); |
378cc40b | 4561 | case '}': |
79072805 LW |
4562 | rightbracket: |
4563 | s++; | |
3280af22 | 4564 | if (PL_lex_brackets <= 0) |
d98d5fff | 4565 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 4566 | else |
3280af22 | 4567 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 4568 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
4569 | PL_lex_formbrack = 0; |
4570 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
4571 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
4572 | if (PL_expect & XFAKEBRACK) { |
4573 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
4574 | PL_lex_state = LEX_INTERPEND; |
4575 | PL_bufptr = s; | |
5db06880 NC |
4576 | #if 0 |
4577 | if (PL_madskills) { | |
cd81e915 | 4578 | if (!PL_thiswhite) |
6b29d1f5 | 4579 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4580 | sv_catpvn(PL_thiswhite,"}",1); |
5db06880 NC |
4581 | } |
4582 | #endif | |
cea2e8a9 | 4583 | return yylex(); /* ignore fake brackets */ |
79072805 | 4584 | } |
fa83b5b6 | 4585 | if (*s == '-' && s[1] == '>') |
3280af22 | 4586 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 4587 | else if (*s != '[' && *s != '{') |
3280af22 | 4588 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
4589 | } |
4590 | } | |
9059aa12 LW |
4591 | if (PL_expect & XFAKEBRACK) { |
4592 | PL_expect &= XENUMMASK; | |
3280af22 | 4593 | PL_bufptr = s; |
cea2e8a9 | 4594 | return yylex(); /* ignore fake brackets */ |
748a9306 | 4595 | } |
cd81e915 | 4596 | start_force(PL_curforce); |
5db06880 NC |
4597 | if (PL_madskills) { |
4598 | curmad('X', newSVpvn(s-1,1)); | |
cd81e915 | 4599 | CURMAD('_', PL_thiswhite); |
5db06880 | 4600 | } |
79072805 | 4601 | force_next('}'); |
5db06880 | 4602 | #ifdef PERL_MAD |
cd81e915 | 4603 | if (!PL_thistoken) |
6b29d1f5 | 4604 | PL_thistoken = newSVpvs(""); |
5db06880 | 4605 | #endif |
79072805 | 4606 | TOKEN(';'); |
378cc40b LW |
4607 | case '&': |
4608 | s++; | |
90771dc0 | 4609 | if (*s++ == '&') |
a0d0e21e | 4610 | AOPERATOR(ANDAND); |
378cc40b | 4611 | s--; |
3280af22 | 4612 | if (PL_expect == XOPERATOR) { |
041457d9 DM |
4613 | if (PL_bufptr == PL_linestart && ckWARN(WARN_SEMICOLON) |
4614 | && isIDFIRST_lazy_if(s,UTF)) | |
7e2040f0 | 4615 | { |
57843af0 | 4616 | CopLINE_dec(PL_curcop); |
9014280d | 4617 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 4618 | CopLINE_inc(PL_curcop); |
463ee0b2 | 4619 | } |
79072805 | 4620 | BAop(OP_BIT_AND); |
463ee0b2 | 4621 | } |
79072805 | 4622 | |
3280af22 NIS |
4623 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
4624 | if (*PL_tokenbuf) { | |
4625 | PL_expect = XOPERATOR; | |
4626 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 4627 | } |
79072805 LW |
4628 | else |
4629 | PREREF('&'); | |
6154021b | 4630 | pl_yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
4631 | TERM('&'); |
4632 | ||
378cc40b LW |
4633 | case '|': |
4634 | s++; | |
90771dc0 | 4635 | if (*s++ == '|') |
a0d0e21e | 4636 | AOPERATOR(OROR); |
378cc40b | 4637 | s--; |
79072805 | 4638 | BOop(OP_BIT_OR); |
378cc40b LW |
4639 | case '=': |
4640 | s++; | |
748a9306 | 4641 | { |
90771dc0 NC |
4642 | const char tmp = *s++; |
4643 | if (tmp == '=') | |
4644 | Eop(OP_EQ); | |
4645 | if (tmp == '>') | |
4646 | OPERATOR(','); | |
4647 | if (tmp == '~') | |
4648 | PMop(OP_MATCH); | |
4649 | if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX) | |
4650 | && strchr("+-*/%.^&|<",tmp)) | |
4651 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4652 | "Reversed %c= operator",(int)tmp); | |
4653 | s--; | |
4654 | if (PL_expect == XSTATE && isALPHA(tmp) && | |
4655 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
4656 | { | |
4657 | if (PL_in_eval && !PL_rsfp) { | |
4658 | d = PL_bufend; | |
4659 | while (s < d) { | |
4660 | if (*s++ == '\n') { | |
4661 | incline(s); | |
4662 | if (strnEQ(s,"=cut",4)) { | |
4663 | s = strchr(s,'\n'); | |
4664 | if (s) | |
4665 | s++; | |
4666 | else | |
4667 | s = d; | |
4668 | incline(s); | |
4669 | goto retry; | |
4670 | } | |
4671 | } | |
a5f75d66 | 4672 | } |
90771dc0 | 4673 | goto retry; |
a5f75d66 | 4674 | } |
5db06880 NC |
4675 | #ifdef PERL_MAD |
4676 | if (PL_madskills) { | |
cd81e915 | 4677 | if (!PL_thiswhite) |
6b29d1f5 | 4678 | PL_thiswhite = newSVpvs(""); |
cd81e915 | 4679 | sv_catpvn(PL_thiswhite, PL_linestart, |
5db06880 NC |
4680 | PL_bufend - PL_linestart); |
4681 | } | |
4682 | #endif | |
90771dc0 NC |
4683 | s = PL_bufend; |
4684 | PL_doextract = TRUE; | |
4685 | goto retry; | |
a5f75d66 | 4686 | } |
a0d0e21e | 4687 | } |
3280af22 | 4688 | if (PL_lex_brackets < PL_lex_formbrack) { |
c35e046a | 4689 | const char *t = s; |
51882d45 | 4690 | #ifdef PERL_STRICT_CR |
c35e046a | 4691 | while (SPACE_OR_TAB(*t)) |
51882d45 | 4692 | #else |
c35e046a | 4693 | while (SPACE_OR_TAB(*t) || *t == '\r') |
51882d45 | 4694 | #endif |
c35e046a | 4695 | t++; |
a0d0e21e LW |
4696 | if (*t == '\n' || *t == '#') { |
4697 | s--; | |
3280af22 | 4698 | PL_expect = XBLOCK; |
a0d0e21e LW |
4699 | goto leftbracket; |
4700 | } | |
79072805 | 4701 | } |
6154021b | 4702 | pl_yylval.ival = 0; |
a0d0e21e | 4703 | OPERATOR(ASSIGNOP); |
378cc40b LW |
4704 | case '!': |
4705 | s++; | |
90771dc0 NC |
4706 | { |
4707 | const char tmp = *s++; | |
4708 | if (tmp == '=') { | |
4709 | /* was this !=~ where !~ was meant? | |
4710 | * warn on m:!=~\s+([/?]|[msy]\W|tr\W): */ | |
4711 | ||
4712 | if (*s == '~' && ckWARN(WARN_SYNTAX)) { | |
4713 | const char *t = s+1; | |
4714 | ||
4715 | while (t < PL_bufend && isSPACE(*t)) | |
4716 | ++t; | |
4717 | ||
4718 | if (*t == '/' || *t == '?' || | |
4719 | ((*t == 'm' || *t == 's' || *t == 'y') | |
4720 | && !isALNUM(t[1])) || | |
4721 | (*t == 't' && t[1] == 'r' && !isALNUM(t[2]))) | |
4722 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
4723 | "!=~ should be !~"); | |
4724 | } | |
4725 | Eop(OP_NE); | |
4726 | } | |
4727 | if (tmp == '~') | |
4728 | PMop(OP_NOT); | |
4729 | } | |
378cc40b LW |
4730 | s--; |
4731 | OPERATOR('!'); | |
4732 | case '<': | |
3280af22 | 4733 | if (PL_expect != XOPERATOR) { |
93a17b20 | 4734 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 4735 | check_uni(); |
79072805 LW |
4736 | if (s[1] == '<') |
4737 | s = scan_heredoc(s); | |
4738 | else | |
4739 | s = scan_inputsymbol(s); | |
4740 | TERM(sublex_start()); | |
378cc40b LW |
4741 | } |
4742 | s++; | |
90771dc0 NC |
4743 | { |
4744 | char tmp = *s++; | |
4745 | if (tmp == '<') | |
4746 | SHop(OP_LEFT_SHIFT); | |
4747 | if (tmp == '=') { | |
4748 | tmp = *s++; | |
4749 | if (tmp == '>') | |
4750 | Eop(OP_NCMP); | |
4751 | s--; | |
4752 | Rop(OP_LE); | |
4753 | } | |
395c3793 | 4754 | } |
378cc40b | 4755 | s--; |
79072805 | 4756 | Rop(OP_LT); |
378cc40b LW |
4757 | case '>': |
4758 | s++; | |
90771dc0 NC |
4759 | { |
4760 | const char tmp = *s++; | |
4761 | if (tmp == '>') | |
4762 | SHop(OP_RIGHT_SHIFT); | |
d4c19fe8 | 4763 | else if (tmp == '=') |
90771dc0 NC |
4764 | Rop(OP_GE); |
4765 | } | |
378cc40b | 4766 | s--; |
79072805 | 4767 | Rop(OP_GT); |
378cc40b LW |
4768 | |
4769 | case '$': | |
bbce6d69 | 4770 | CLINE; |
4771 | ||
3280af22 NIS |
4772 | if (PL_expect == XOPERATOR) { |
4773 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
4774 | PL_expect = XTERM; | |
c445ea15 | 4775 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 4776 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 4777 | } |
8990e307 | 4778 | } |
a0d0e21e | 4779 | |
7e2040f0 | 4780 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-", s[2]))) { |
3280af22 | 4781 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
4782 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
4783 | sizeof PL_tokenbuf - 1, FALSE); | |
4784 | if (PL_expect == XOPERATOR) | |
4785 | no_op("Array length", s); | |
3280af22 | 4786 | if (!PL_tokenbuf[1]) |
a0d0e21e | 4787 | PREREF(DOLSHARP); |
3280af22 NIS |
4788 | PL_expect = XOPERATOR; |
4789 | PL_pending_ident = '#'; | |
463ee0b2 | 4790 | TOKEN(DOLSHARP); |
79072805 | 4791 | } |
bbce6d69 | 4792 | |
3280af22 | 4793 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
4794 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
4795 | sizeof PL_tokenbuf - 1, FALSE); | |
4796 | if (PL_expect == XOPERATOR) | |
4797 | no_op("Scalar", s); | |
3280af22 NIS |
4798 | if (!PL_tokenbuf[1]) { |
4799 | if (s == PL_bufend) | |
bbce6d69 | 4800 | yyerror("Final $ should be \\$ or $name"); |
4801 | PREREF('$'); | |
8990e307 | 4802 | } |
a0d0e21e | 4803 | |
bbce6d69 | 4804 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 4805 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
6154021b | 4806 | pl_yylval.opval = newSVOP(OP_CONST, 0, |
fc15ae8f | 4807 | newSViv(CopARYBASE_get(&PL_compiling))); |
6154021b | 4808 | pl_yylval.opval->op_private = OPpCONST_ARYBASE; |
bbce6d69 | 4809 | TERM(THING); |
4810 | } | |
4811 | ||
ff68c719 | 4812 | d = s; |
90771dc0 NC |
4813 | { |
4814 | const char tmp = *s; | |
4815 | if (PL_lex_state == LEX_NORMAL) | |
29595ff2 | 4816 | s = SKIPSPACE1(s); |
ff68c719 | 4817 | |
90771dc0 NC |
4818 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) |
4819 | && intuit_more(s)) { | |
4820 | if (*s == '[') { | |
4821 | PL_tokenbuf[0] = '@'; | |
4822 | if (ckWARN(WARN_SYNTAX)) { | |
c35e046a AL |
4823 | char *t = s+1; |
4824 | ||
4825 | while (isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$') | |
4826 | t++; | |
90771dc0 | 4827 | if (*t++ == ',') { |
29595ff2 | 4828 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
90771dc0 NC |
4829 | while (t < PL_bufend && *t != ']') |
4830 | t++; | |
9014280d | 4831 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
90771dc0 | 4832 | "Multidimensional syntax %.*s not supported", |
36c7798d | 4833 | (int)((t - PL_bufptr) + 1), PL_bufptr); |
90771dc0 | 4834 | } |
748a9306 | 4835 | } |
93a17b20 | 4836 | } |
90771dc0 NC |
4837 | else if (*s == '{') { |
4838 | char *t; | |
4839 | PL_tokenbuf[0] = '%'; | |
4840 | if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX) | |
4841 | && (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
4842 | { | |
4843 | char tmpbuf[sizeof PL_tokenbuf]; | |
c35e046a AL |
4844 | do { |
4845 | t++; | |
4846 | } while (isSPACE(*t)); | |
90771dc0 | 4847 | if (isIDFIRST_lazy_if(t,UTF)) { |
780a5241 | 4848 | STRLEN len; |
90771dc0 | 4849 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, |
780a5241 | 4850 | &len); |
c35e046a AL |
4851 | while (isSPACE(*t)) |
4852 | t++; | |
780a5241 | 4853 | if (*t == ';' && get_cvn_flags(tmpbuf, len, 0)) |
90771dc0 NC |
4854 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
4855 | "You need to quote \"%s\"", | |
4856 | tmpbuf); | |
4857 | } | |
4858 | } | |
4859 | } | |
93a17b20 | 4860 | } |
bbce6d69 | 4861 | |
90771dc0 NC |
4862 | PL_expect = XOPERATOR; |
4863 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { | |
4864 | const bool islop = (PL_last_lop == PL_oldoldbufptr); | |
4865 | if (!islop || PL_last_lop_op == OP_GREPSTART) | |
4866 | PL_expect = XOPERATOR; | |
4867 | else if (strchr("$@\"'`q", *s)) | |
4868 | PL_expect = XTERM; /* e.g. print $fh "foo" */ | |
4869 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) | |
4870 | PL_expect = XTERM; /* e.g. print $fh &sub */ | |
4871 | else if (isIDFIRST_lazy_if(s,UTF)) { | |
4872 | char tmpbuf[sizeof PL_tokenbuf]; | |
4873 | int t2; | |
4874 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
5458a98a | 4875 | if ((t2 = keyword(tmpbuf, len, 0))) { |
90771dc0 NC |
4876 | /* binary operators exclude handle interpretations */ |
4877 | switch (t2) { | |
4878 | case -KEY_x: | |
4879 | case -KEY_eq: | |
4880 | case -KEY_ne: | |
4881 | case -KEY_gt: | |
4882 | case -KEY_lt: | |
4883 | case -KEY_ge: | |
4884 | case -KEY_le: | |
4885 | case -KEY_cmp: | |
4886 | break; | |
4887 | default: | |
4888 | PL_expect = XTERM; /* e.g. print $fh length() */ | |
4889 | break; | |
4890 | } | |
4891 | } | |
4892 | else { | |
4893 | PL_expect = XTERM; /* e.g. print $fh subr() */ | |
84902520 TB |
4894 | } |
4895 | } | |
90771dc0 NC |
4896 | else if (isDIGIT(*s)) |
4897 | PL_expect = XTERM; /* e.g. print $fh 3 */ | |
4898 | else if (*s == '.' && isDIGIT(s[1])) | |
4899 | PL_expect = XTERM; /* e.g. print $fh .3 */ | |
4900 | else if ((*s == '?' || *s == '-' || *s == '+') | |
4901 | && !isSPACE(s[1]) && s[1] != '=') | |
4902 | PL_expect = XTERM; /* e.g. print $fh -1 */ | |
4903 | else if (*s == '/' && !isSPACE(s[1]) && s[1] != '=' | |
4904 | && s[1] != '/') | |
4905 | PL_expect = XTERM; /* e.g. print $fh /.../ | |
4906 | XXX except DORDOR operator | |
4907 | */ | |
4908 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) | |
4909 | && s[2] != '=') | |
4910 | PL_expect = XTERM; /* print $fh <<"EOF" */ | |
93a17b20 | 4911 | } |
bbce6d69 | 4912 | } |
3280af22 | 4913 | PL_pending_ident = '$'; |
79072805 | 4914 | TOKEN('$'); |
378cc40b LW |
4915 | |
4916 | case '@': | |
3280af22 | 4917 | if (PL_expect == XOPERATOR) |
bbce6d69 | 4918 | no_op("Array", s); |
3280af22 NIS |
4919 | PL_tokenbuf[0] = '@'; |
4920 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
4921 | if (!PL_tokenbuf[1]) { | |
bbce6d69 | 4922 | PREREF('@'); |
4923 | } | |
3280af22 | 4924 | if (PL_lex_state == LEX_NORMAL) |
29595ff2 | 4925 | s = SKIPSPACE1(s); |
3280af22 | 4926 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 4927 | if (*s == '{') |
3280af22 | 4928 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
4929 | |
4930 | /* Warn about @ where they meant $. */ | |
041457d9 DM |
4931 | if (*s == '[' || *s == '{') { |
4932 | if (ckWARN(WARN_SYNTAX)) { | |
f54cb97a | 4933 | const char *t = s + 1; |
7e2040f0 | 4934 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
4935 | t++; |
4936 | if (*t == '}' || *t == ']') { | |
4937 | t++; | |
29595ff2 | 4938 | PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */ |
9014280d | 4939 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
599cee73 | 4940 | "Scalar value %.*s better written as $%.*s", |
36c7798d DM |
4941 | (int)(t-PL_bufptr), PL_bufptr, |
4942 | (int)(t-PL_bufptr-1), PL_bufptr+1); | |
a0d0e21e | 4943 | } |
93a17b20 LW |
4944 | } |
4945 | } | |
463ee0b2 | 4946 | } |
3280af22 | 4947 | PL_pending_ident = '@'; |
79072805 | 4948 | TERM('@'); |
378cc40b | 4949 | |
c963b151 | 4950 | case '/': /* may be division, defined-or, or pattern */ |
6f33ba73 RGS |
4951 | if (PL_expect == XTERMORDORDOR && s[1] == '/') { |
4952 | s += 2; | |
4953 | AOPERATOR(DORDOR); | |
4954 | } | |
c963b151 BD |
4955 | case '?': /* may either be conditional or pattern */ |
4956 | if(PL_expect == XOPERATOR) { | |
90771dc0 | 4957 | char tmp = *s++; |
c963b151 BD |
4958 | if(tmp == '?') { |
4959 | OPERATOR('?'); | |
4960 | } | |
4961 | else { | |
4962 | tmp = *s++; | |
4963 | if(tmp == '/') { | |
4964 | /* A // operator. */ | |
4965 | AOPERATOR(DORDOR); | |
4966 | } | |
4967 | else { | |
4968 | s--; | |
4969 | Mop(OP_DIVIDE); | |
4970 | } | |
4971 | } | |
4972 | } | |
4973 | else { | |
4974 | /* Disable warning on "study /blah/" */ | |
4975 | if (PL_oldoldbufptr == PL_last_uni | |
4976 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
4977 | || memNE(PL_last_uni, "study", 5) | |
4978 | || isALNUM_lazy_if(PL_last_uni+5,UTF) | |
4979 | )) | |
4980 | check_uni(); | |
4981 | s = scan_pat(s,OP_MATCH); | |
4982 | TERM(sublex_start()); | |
4983 | } | |
378cc40b LW |
4984 | |
4985 | case '.': | |
51882d45 GS |
4986 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
4987 | #ifdef PERL_STRICT_CR | |
4988 | && s[1] == '\n' | |
4989 | #else | |
4990 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
4991 | #endif | |
4992 | && (s == PL_linestart || s[-1] == '\n') ) | |
4993 | { | |
3280af22 NIS |
4994 | PL_lex_formbrack = 0; |
4995 | PL_expect = XSTATE; | |
79072805 LW |
4996 | goto rightbracket; |
4997 | } | |
3280af22 | 4998 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
90771dc0 | 4999 | char tmp = *s++; |
a687059c LW |
5000 | if (*s == tmp) { |
5001 | s++; | |
2f3197b3 LW |
5002 | if (*s == tmp) { |
5003 | s++; | |
6154021b | 5004 | pl_yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
5005 | } |
5006 | else | |
6154021b | 5007 | pl_yylval.ival = 0; |
378cc40b | 5008 | OPERATOR(DOTDOT); |
a687059c | 5009 | } |
3280af22 | 5010 | if (PL_expect != XOPERATOR) |
2f3197b3 | 5011 | check_uni(); |
79072805 | 5012 | Aop(OP_CONCAT); |
378cc40b LW |
5013 | } |
5014 | /* FALL THROUGH */ | |
5015 | case '0': case '1': case '2': case '3': case '4': | |
5016 | case '5': case '6': case '7': case '8': case '9': | |
6154021b | 5017 | s = scan_num(s, &pl_yylval); |
931e0695 | 5018 | DEBUG_T( { printbuf("### Saw number in %s\n", s); } ); |
3280af22 | 5019 | if (PL_expect == XOPERATOR) |
8990e307 | 5020 | no_op("Number",s); |
79072805 LW |
5021 | TERM(THING); |
5022 | ||
5023 | case '\'': | |
5db06880 | 5024 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5025 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
5026 | if (PL_expect == XOPERATOR) { |
5027 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
5028 | PL_expect = XTERM; | |
c445ea15 | 5029 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 5030 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 5031 | } |
463ee0b2 | 5032 | else |
8990e307 | 5033 | no_op("String",s); |
463ee0b2 | 5034 | } |
79072805 | 5035 | if (!s) |
d4c19fe8 | 5036 | missingterm(NULL); |
6154021b | 5037 | pl_yylval.ival = OP_CONST; |
79072805 LW |
5038 | TERM(sublex_start()); |
5039 | ||
5040 | case '"': | |
5db06880 | 5041 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5042 | DEBUG_T( { printbuf("### Saw string before %s\n", s); } ); |
3280af22 NIS |
5043 | if (PL_expect == XOPERATOR) { |
5044 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
5045 | PL_expect = XTERM; | |
c445ea15 | 5046 | deprecate_old(commaless_variable_list); |
bbf60fe6 | 5047 | return REPORT(','); /* grandfather non-comma-format format */ |
a0d0e21e | 5048 | } |
463ee0b2 | 5049 | else |
8990e307 | 5050 | no_op("String",s); |
463ee0b2 | 5051 | } |
79072805 | 5052 | if (!s) |
d4c19fe8 | 5053 | missingterm(NULL); |
6154021b | 5054 | pl_yylval.ival = OP_CONST; |
cfd0369c NC |
5055 | /* FIXME. I think that this can be const if char *d is replaced by |
5056 | more localised variables. */ | |
3280af22 | 5057 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
63cd0674 | 5058 | if (*d == '$' || *d == '@' || *d == '\\' || !UTF8_IS_INVARIANT((U8)*d)) { |
6154021b | 5059 | pl_yylval.ival = OP_STRINGIFY; |
4633a7c4 LW |
5060 | break; |
5061 | } | |
5062 | } | |
79072805 LW |
5063 | TERM(sublex_start()); |
5064 | ||
5065 | case '`': | |
5db06880 | 5066 | s = scan_str(s,!!PL_madskills,FALSE); |
931e0695 | 5067 | DEBUG_T( { printbuf("### Saw backtick string before %s\n", s); } ); |
3280af22 | 5068 | if (PL_expect == XOPERATOR) |
8990e307 | 5069 | no_op("Backticks",s); |
79072805 | 5070 | if (!s) |
d4c19fe8 | 5071 | missingterm(NULL); |
9b201d7d | 5072 | readpipe_override(); |
79072805 LW |
5073 | TERM(sublex_start()); |
5074 | ||
5075 | case '\\': | |
5076 | s++; | |
041457d9 | 5077 | if (PL_lex_inwhat && isDIGIT(*s) && ckWARN(WARN_SYNTAX)) |
9014280d | 5078 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression", |
599cee73 | 5079 | *s, *s); |
3280af22 | 5080 | if (PL_expect == XOPERATOR) |
8990e307 | 5081 | no_op("Backslash",s); |
79072805 LW |
5082 | OPERATOR(REFGEN); |
5083 | ||
a7cb1f99 | 5084 | case 'v': |
e526c9e6 | 5085 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
f54cb97a | 5086 | char *start = s + 2; |
dd629d5b | 5087 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
5088 | start++; |
5089 | if (*start == '.' && isDIGIT(start[1])) { | |
6154021b | 5090 | s = scan_num(s, &pl_yylval); |
a7cb1f99 GS |
5091 | TERM(THING); |
5092 | } | |
e526c9e6 | 5093 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
6f33ba73 RGS |
5094 | else if (!isALPHA(*start) && (PL_expect == XTERM |
5095 | || PL_expect == XREF || PL_expect == XSTATE | |
5096 | || PL_expect == XTERMORDORDOR)) { | |
9bde8eb0 | 5097 | GV *const gv = gv_fetchpvn_flags(s, start - s, 0, SVt_PVCV); |
e526c9e6 | 5098 | if (!gv) { |
6154021b | 5099 | s = scan_num(s, &pl_yylval); |
e526c9e6 GS |
5100 | TERM(THING); |
5101 | } | |
5102 | } | |
a7cb1f99 GS |
5103 | } |
5104 | goto keylookup; | |
79072805 | 5105 | case 'x': |
3280af22 | 5106 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
5107 | s++; |
5108 | Mop(OP_REPEAT); | |
2f3197b3 | 5109 | } |
79072805 LW |
5110 | goto keylookup; |
5111 | ||
378cc40b | 5112 | case '_': |
79072805 LW |
5113 | case 'a': case 'A': |
5114 | case 'b': case 'B': | |
5115 | case 'c': case 'C': | |
5116 | case 'd': case 'D': | |
5117 | case 'e': case 'E': | |
5118 | case 'f': case 'F': | |
5119 | case 'g': case 'G': | |
5120 | case 'h': case 'H': | |
5121 | case 'i': case 'I': | |
5122 | case 'j': case 'J': | |
5123 | case 'k': case 'K': | |
5124 | case 'l': case 'L': | |
5125 | case 'm': case 'M': | |
5126 | case 'n': case 'N': | |
5127 | case 'o': case 'O': | |
5128 | case 'p': case 'P': | |
5129 | case 'q': case 'Q': | |
5130 | case 'r': case 'R': | |
5131 | case 's': case 'S': | |
5132 | case 't': case 'T': | |
5133 | case 'u': case 'U': | |
a7cb1f99 | 5134 | case 'V': |
79072805 LW |
5135 | case 'w': case 'W': |
5136 | case 'X': | |
5137 | case 'y': case 'Y': | |
5138 | case 'z': case 'Z': | |
5139 | ||
49dc05e3 | 5140 | keylookup: { |
90771dc0 | 5141 | I32 tmp; |
10edeb5d JH |
5142 | |
5143 | orig_keyword = 0; | |
5144 | gv = NULL; | |
5145 | gvp = NULL; | |
49dc05e3 | 5146 | |
3280af22 NIS |
5147 | PL_bufptr = s; |
5148 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 5149 | |
5150 | /* Some keywords can be followed by any delimiter, including ':' */ | |
155aba94 GS |
5151 | tmp = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
5152 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || | |
5153 | (PL_tokenbuf[0] == 'q' && | |
5154 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 5155 | |
5156 | /* x::* is just a word, unless x is "CORE" */ | |
3280af22 | 5157 | if (!tmp && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
5158 | goto just_a_word; |
5159 | ||
3643fb5f | 5160 | d = s; |
3280af22 | 5161 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
5162 | d++; /* no comments skipped here, or s### is misparsed */ |
5163 | ||
5164 | /* Is this a label? */ | |
3280af22 NIS |
5165 | if (!tmp && PL_expect == XSTATE |
5166 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
8ebc5c01 | 5167 | s = d + 1; |
6154021b | 5168 | pl_yylval.pval = CopLABEL_alloc(PL_tokenbuf); |
8ebc5c01 | 5169 | CLINE; |
5170 | TOKEN(LABEL); | |
3643fb5f CS |
5171 | } |
5172 | ||
5173 | /* Check for keywords */ | |
5458a98a | 5174 | tmp = keyword(PL_tokenbuf, len, 0); |
748a9306 LW |
5175 | |
5176 | /* Is this a word before a => operator? */ | |
1c3923b3 | 5177 | if (*d == '=' && d[1] == '>') { |
748a9306 | 5178 | CLINE; |
6154021b | 5179 | pl_yylval.opval |
d0a148a6 NC |
5180 | = (OP*)newSVOP(OP_CONST, 0, |
5181 | S_newSV_maybe_utf8(aTHX_ PL_tokenbuf, len)); | |
6154021b | 5182 | pl_yylval.opval->op_private = OPpCONST_BARE; |
748a9306 LW |
5183 | TERM(WORD); |
5184 | } | |
5185 | ||
a0d0e21e | 5186 | if (tmp < 0) { /* second-class keyword? */ |
cbbf8932 AL |
5187 | GV *ogv = NULL; /* override (winner) */ |
5188 | GV *hgv = NULL; /* hidden (loser) */ | |
3280af22 | 5189 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 5190 | CV *cv; |
90e5519e | 5191 | if ((gv = gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVCV)) && |
56f7f34b CS |
5192 | (cv = GvCVu(gv))) |
5193 | { | |
5194 | if (GvIMPORTED_CV(gv)) | |
5195 | ogv = gv; | |
5196 | else if (! CvMETHOD(cv)) | |
5197 | hgv = gv; | |
5198 | } | |
5199 | if (!ogv && | |
3280af22 | 5200 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
9e0d86f8 | 5201 | (gv = *gvp) && isGV_with_GP(gv) && |
56f7f34b CS |
5202 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
5203 | { | |
5204 | ogv = gv; | |
5205 | } | |
5206 | } | |
5207 | if (ogv) { | |
30fe34ed | 5208 | orig_keyword = tmp; |
56f7f34b | 5209 | tmp = 0; /* overridden by import or by GLOBAL */ |
6e7b2336 GS |
5210 | } |
5211 | else if (gv && !gvp | |
5212 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
47f9f84c | 5213 | && GvCVu(gv)) |
6e7b2336 GS |
5214 | { |
5215 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 5216 | } |
56f7f34b CS |
5217 | else { /* no override */ |
5218 | tmp = -tmp; | |
ac206dc8 | 5219 | if (tmp == KEY_dump && ckWARN(WARN_MISC)) { |
9014280d | 5220 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
ac206dc8 RGS |
5221 | "dump() better written as CORE::dump()"); |
5222 | } | |
a0714e2c | 5223 | gv = NULL; |
56f7f34b | 5224 | gvp = 0; |
041457d9 DM |
5225 | if (hgv && tmp != KEY_x && tmp != KEY_CORE |
5226 | && ckWARN(WARN_AMBIGUOUS)) /* never ambiguous */ | |
9014280d | 5227 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 5228 | "Ambiguous call resolved as CORE::%s(), %s", |
2f3ca594 | 5229 | GvENAME(hgv), "qualify as such or use &"); |
49dc05e3 | 5230 | } |
a0d0e21e LW |
5231 | } |
5232 | ||
5233 | reserved_word: | |
5234 | switch (tmp) { | |
79072805 LW |
5235 | |
5236 | default: /* not a keyword */ | |
0bfa2a8a NC |
5237 | /* Trade off - by using this evil construction we can pull the |
5238 | variable gv into the block labelled keylookup. If not, then | |
5239 | we have to give it function scope so that the goto from the | |
5240 | earlier ':' case doesn't bypass the initialisation. */ | |
5241 | if (0) { | |
5242 | just_a_word_zero_gv: | |
5243 | gv = NULL; | |
5244 | gvp = NULL; | |
8bee0991 | 5245 | orig_keyword = 0; |
0bfa2a8a | 5246 | } |
93a17b20 | 5247 | just_a_word: { |
96e4d5b1 | 5248 | SV *sv; |
ce29ac45 | 5249 | int pkgname = 0; |
f54cb97a | 5250 | const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
5069cc75 | 5251 | CV *cv; |
5db06880 | 5252 | #ifdef PERL_MAD |
cd81e915 | 5253 | SV *nextPL_nextwhite = 0; |
5db06880 NC |
5254 | #endif |
5255 | ||
8990e307 LW |
5256 | |
5257 | /* Get the rest if it looks like a package qualifier */ | |
5258 | ||
155aba94 | 5259 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 5260 | STRLEN morelen; |
3280af22 | 5261 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
5262 | TRUE, &morelen); |
5263 | if (!morelen) | |
cea2e8a9 | 5264 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 5265 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 5266 | len += morelen; |
ce29ac45 | 5267 | pkgname = 1; |
a0d0e21e | 5268 | } |
8990e307 | 5269 | |
3280af22 NIS |
5270 | if (PL_expect == XOPERATOR) { |
5271 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 5272 | CopLINE_dec(PL_curcop); |
9014280d | 5273 | Perl_warner(aTHX_ packWARN(WARN_SEMICOLON), PL_warn_nosemi); |
57843af0 | 5274 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
5275 | } |
5276 | else | |
54310121 | 5277 | no_op("Bareword",s); |
463ee0b2 | 5278 | } |
8990e307 | 5279 | |
c3e0f903 GS |
5280 | /* Look for a subroutine with this name in current package, |
5281 | unless name is "Foo::", in which case Foo is a bearword | |
5282 | (and a package name). */ | |
5283 | ||
5db06880 | 5284 | if (len > 2 && !PL_madskills && |
3280af22 | 5285 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 5286 | { |
f776e3cd | 5287 | if (ckWARN(WARN_BAREWORD) |
90e5519e | 5288 | && ! gv_fetchpvn_flags(PL_tokenbuf, len, 0, SVt_PVHV)) |
9014280d | 5289 | Perl_warner(aTHX_ packWARN(WARN_BAREWORD), |
599cee73 | 5290 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 5291 | PL_tokenbuf); |
c3e0f903 | 5292 | len -= 2; |
3280af22 | 5293 | PL_tokenbuf[len] = '\0'; |
a0714e2c | 5294 | gv = NULL; |
c3e0f903 GS |
5295 | gvp = 0; |
5296 | } | |
5297 | else { | |
62d55b22 NC |
5298 | if (!gv) { |
5299 | /* Mustn't actually add anything to a symbol table. | |
5300 | But also don't want to "initialise" any placeholder | |
5301 | constants that might already be there into full | |
5302 | blown PVGVs with attached PVCV. */ | |
90e5519e NC |
5303 | gv = gv_fetchpvn_flags(PL_tokenbuf, len, |
5304 | GV_NOADD_NOINIT, SVt_PVCV); | |
62d55b22 | 5305 | } |
b3d904f3 | 5306 | len = 0; |
c3e0f903 GS |
5307 | } |
5308 | ||
5309 | /* if we saw a global override before, get the right name */ | |
8990e307 | 5310 | |
49dc05e3 | 5311 | if (gvp) { |
396482e1 | 5312 | sv = newSVpvs("CORE::GLOBAL::"); |
3280af22 | 5313 | sv_catpv(sv,PL_tokenbuf); |
49dc05e3 | 5314 | } |
8a7a129d NC |
5315 | else { |
5316 | /* If len is 0, newSVpv does strlen(), which is correct. | |
5317 | If len is non-zero, then it will be the true length, | |
5318 | and so the scalar will be created correctly. */ | |
5319 | sv = newSVpv(PL_tokenbuf,len); | |
5320 | } | |
5db06880 | 5321 | #ifdef PERL_MAD |
cd81e915 NC |
5322 | if (PL_madskills && !PL_thistoken) { |
5323 | char *start = SvPVX(PL_linestr) + PL_realtokenstart; | |
9ff8e806 | 5324 | PL_thistoken = newSVpvn(start,s - start); |
cd81e915 | 5325 | PL_realtokenstart = s - SvPVX(PL_linestr); |
5db06880 NC |
5326 | } |
5327 | #endif | |
8990e307 | 5328 | |
a0d0e21e LW |
5329 | /* Presume this is going to be a bareword of some sort. */ |
5330 | ||
5331 | CLINE; | |
6154021b RGS |
5332 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
5333 | pl_yylval.opval->op_private = OPpCONST_BARE; | |
8f8cf39c JH |
5334 | /* UTF-8 package name? */ |
5335 | if (UTF && !IN_BYTES && | |
95a20fc0 | 5336 | is_utf8_string((U8*)SvPVX_const(sv), SvCUR(sv))) |
8f8cf39c | 5337 | SvUTF8_on(sv); |
a0d0e21e | 5338 | |
c3e0f903 GS |
5339 | /* And if "Foo::", then that's what it certainly is. */ |
5340 | ||
5341 | if (len) | |
5342 | goto safe_bareword; | |
5343 | ||
5069cc75 NC |
5344 | /* Do the explicit type check so that we don't need to force |
5345 | the initialisation of the symbol table to have a real GV. | |
5346 | Beware - gv may not really be a PVGV, cv may not really be | |
5347 | a PVCV, (because of the space optimisations that gv_init | |
5348 | understands) But they're true if for this symbol there is | |
5349 | respectively a typeglob and a subroutine. | |
5350 | */ | |
5351 | cv = gv ? ((SvTYPE(gv) == SVt_PVGV) | |
5352 | /* Real typeglob, so get the real subroutine: */ | |
5353 | ? GvCVu(gv) | |
5354 | /* A proxy for a subroutine in this package? */ | |
5355 | : SvOK(gv) ? (CV *) gv : NULL) | |
5356 | : NULL; | |
5357 | ||
8990e307 LW |
5358 | /* See if it's the indirect object for a list operator. */ |
5359 | ||
3280af22 NIS |
5360 | if (PL_oldoldbufptr && |
5361 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
5362 | (PL_oldoldbufptr == PL_last_lop |
5363 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 5364 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
5365 | (PL_expect == XREF || |
5366 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 5367 | { |
748a9306 LW |
5368 | bool immediate_paren = *s == '('; |
5369 | ||
a0d0e21e | 5370 | /* (Now we can afford to cross potential line boundary.) */ |
cd81e915 | 5371 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5db06880 | 5372 | #ifdef PERL_MAD |
cd81e915 | 5373 | PL_nextwhite = nextPL_nextwhite; /* assume no & deception */ |
5db06880 | 5374 | #endif |
a0d0e21e LW |
5375 | |
5376 | /* Two barewords in a row may indicate method call. */ | |
5377 | ||
62d55b22 NC |
5378 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && |
5379 | (tmp = intuit_method(s, gv, cv))) | |
bbf60fe6 | 5380 | return REPORT(tmp); |
a0d0e21e LW |
5381 | |
5382 | /* If not a declared subroutine, it's an indirect object. */ | |
5383 | /* (But it's an indir obj regardless for sort.) */ | |
7294df96 | 5384 | /* Also, if "_" follows a filetest operator, it's a bareword */ |
a0d0e21e | 5385 | |
7294df96 RGS |
5386 | if ( |
5387 | ( !immediate_paren && (PL_last_lop_op == OP_SORT || | |
5069cc75 | 5388 | ((!gv || !cv) && |
a9ef352a | 5389 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 5390 | PL_last_lop_op != OP_GREPSTART)))) |
7294df96 RGS |
5391 | || (PL_tokenbuf[0] == '_' && PL_tokenbuf[1] == '\0' |
5392 | && ((PL_opargs[PL_last_lop_op] & OA_CLASS_MASK) == OA_FILESTATOP)) | |
5393 | ) | |
a9ef352a | 5394 | { |
3280af22 | 5395 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 5396 | goto bareword; |
93a17b20 LW |
5397 | } |
5398 | } | |
8990e307 | 5399 | |
3280af22 | 5400 | PL_expect = XOPERATOR; |
5db06880 NC |
5401 | #ifdef PERL_MAD |
5402 | if (isSPACE(*s)) | |
cd81e915 NC |
5403 | s = SKIPSPACE2(s,nextPL_nextwhite); |
5404 | PL_nextwhite = nextPL_nextwhite; | |
5db06880 | 5405 | #else |
8990e307 | 5406 | s = skipspace(s); |
5db06880 | 5407 | #endif |
1c3923b3 GS |
5408 | |
5409 | /* Is this a word before a => operator? */ | |
ce29ac45 | 5410 | if (*s == '=' && s[1] == '>' && !pkgname) { |
1c3923b3 | 5411 | CLINE; |
6154021b | 5412 | sv_setpv(((SVOP*)pl_yylval.opval)->op_sv, PL_tokenbuf); |
0064a8a9 | 5413 | if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len)) |
6154021b | 5414 | SvUTF8_on(((SVOP*)pl_yylval.opval)->op_sv); |
1c3923b3 GS |
5415 | TERM(WORD); |
5416 | } | |
5417 | ||
5418 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 5419 | if (*s == '(') { |
79072805 | 5420 | CLINE; |
5069cc75 | 5421 | if (cv) { |
c35e046a AL |
5422 | d = s + 1; |
5423 | while (SPACE_OR_TAB(*d)) | |
5424 | d++; | |
62d55b22 | 5425 | if (*d == ')' && (sv = gv_const_sv(gv))) { |
96e4d5b1 | 5426 | s = d + 1; |
c631f32b | 5427 | goto its_constant; |
96e4d5b1 | 5428 | } |
5429 | } | |
5db06880 NC |
5430 | #ifdef PERL_MAD |
5431 | if (PL_madskills) { | |
cd81e915 NC |
5432 | PL_nextwhite = PL_thiswhite; |
5433 | PL_thiswhite = 0; | |
5db06880 | 5434 | } |
cd81e915 | 5435 | start_force(PL_curforce); |
5db06880 | 5436 | #endif |
6154021b | 5437 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
3280af22 | 5438 | PL_expect = XOPERATOR; |
5db06880 NC |
5439 | #ifdef PERL_MAD |
5440 | if (PL_madskills) { | |
cd81e915 NC |
5441 | PL_nextwhite = nextPL_nextwhite; |
5442 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5443 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5444 | } |
5445 | #endif | |
93a17b20 | 5446 | force_next(WORD); |
6154021b | 5447 | pl_yylval.ival = 0; |
463ee0b2 | 5448 | TOKEN('&'); |
79072805 | 5449 | } |
93a17b20 | 5450 | |
a0d0e21e | 5451 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 5452 | |
62d55b22 | 5453 | if ((*s == '$' || *s == '{') && (!gv || !cv)) { |
3280af22 NIS |
5454 | PL_last_lop = PL_oldbufptr; |
5455 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 5456 | PREBLOCK(METHOD); |
463ee0b2 LW |
5457 | } |
5458 | ||
8990e307 LW |
5459 | /* If followed by a bareword, see if it looks like indir obj. */ |
5460 | ||
30fe34ed RGS |
5461 | if (!orig_keyword |
5462 | && (isIDFIRST_lazy_if(s,UTF) || *s == '$') | |
62d55b22 | 5463 | && (tmp = intuit_method(s, gv, cv))) |
bbf60fe6 | 5464 | return REPORT(tmp); |
93a17b20 | 5465 | |
8990e307 LW |
5466 | /* Not a method, so call it a subroutine (if defined) */ |
5467 | ||
5069cc75 | 5468 | if (cv) { |
0453d815 | 5469 | if (lastchar == '-' && ckWARN_d(WARN_AMBIGUOUS)) |
9014280d | 5470 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5471 | "Ambiguous use of -%s resolved as -&%s()", |
3280af22 | 5472 | PL_tokenbuf, PL_tokenbuf); |
89bfa8cd | 5473 | /* Check for a constant sub */ |
c631f32b | 5474 | if ((sv = gv_const_sv(gv))) { |
96e4d5b1 | 5475 | its_constant: |
6154021b RGS |
5476 | SvREFCNT_dec(((SVOP*)pl_yylval.opval)->op_sv); |
5477 | ((SVOP*)pl_yylval.opval)->op_sv = SvREFCNT_inc_simple(sv); | |
5478 | pl_yylval.opval->op_private = 0; | |
96e4d5b1 | 5479 | TOKEN(WORD); |
89bfa8cd | 5480 | } |
5481 | ||
a5f75d66 | 5482 | /* Resolve to GV now. */ |
62d55b22 | 5483 | if (SvTYPE(gv) != SVt_PVGV) { |
b3d904f3 | 5484 | gv = gv_fetchpv(PL_tokenbuf, 0, SVt_PVCV); |
62d55b22 NC |
5485 | assert (SvTYPE(gv) == SVt_PVGV); |
5486 | /* cv must have been some sort of placeholder, so | |
5487 | now needs replacing with a real code reference. */ | |
5488 | cv = GvCV(gv); | |
5489 | } | |
5490 | ||
6154021b RGS |
5491 | op_free(pl_yylval.opval); |
5492 | pl_yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
5493 | pl_yylval.opval->op_private |= OPpENTERSUB_NOPAREN; | |
7a52d87a | 5494 | PL_last_lop = PL_oldbufptr; |
bf848113 | 5495 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 | 5496 | /* Is there a prototype? */ |
5db06880 NC |
5497 | if ( |
5498 | #ifdef PERL_MAD | |
5499 | cv && | |
5500 | #endif | |
d9f2850e RGS |
5501 | SvPOK(cv)) |
5502 | { | |
5f66b61c AL |
5503 | STRLEN protolen; |
5504 | const char *proto = SvPV_const((SV*)cv, protolen); | |
5505 | if (!protolen) | |
4633a7c4 | 5506 | TERM(FUNC0SUB); |
8c28b960 | 5507 | if ((*proto == '$' || *proto == '_') && proto[1] == '\0') |
4633a7c4 | 5508 | OPERATOR(UNIOPSUB); |
0f5d0394 AE |
5509 | while (*proto == ';') |
5510 | proto++; | |
7a52d87a | 5511 | if (*proto == '&' && *s == '{') { |
49a54bbe NC |
5512 | if (PL_curstash) |
5513 | sv_setpvs(PL_subname, "__ANON__"); | |
5514 | else | |
5515 | sv_setpvs(PL_subname, "__ANON__::__ANON__"); | |
4633a7c4 LW |
5516 | PREBLOCK(LSTOPSUB); |
5517 | } | |
a9ef352a | 5518 | } |
5db06880 NC |
5519 | #ifdef PERL_MAD |
5520 | { | |
5521 | if (PL_madskills) { | |
cd81e915 NC |
5522 | PL_nextwhite = PL_thiswhite; |
5523 | PL_thiswhite = 0; | |
5db06880 | 5524 | } |
cd81e915 | 5525 | start_force(PL_curforce); |
6154021b | 5526 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
5db06880 NC |
5527 | PL_expect = XTERM; |
5528 | if (PL_madskills) { | |
cd81e915 NC |
5529 | PL_nextwhite = nextPL_nextwhite; |
5530 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5531 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5532 | } |
5533 | force_next(WORD); | |
5534 | TOKEN(NOAMP); | |
5535 | } | |
5536 | } | |
5537 | ||
5538 | /* Guess harder when madskills require "best effort". */ | |
5539 | if (PL_madskills && (!gv || !GvCVu(gv))) { | |
5540 | int probable_sub = 0; | |
5541 | if (strchr("\"'`$@%0123456789!*+{[<", *s)) | |
5542 | probable_sub = 1; | |
5543 | else if (isALPHA(*s)) { | |
5544 | char tmpbuf[1024]; | |
5545 | STRLEN tmplen; | |
5546 | d = s; | |
5547 | d = scan_word(d, tmpbuf, sizeof tmpbuf, TRUE, &tmplen); | |
5458a98a | 5548 | if (!keyword(tmpbuf, tmplen, 0)) |
5db06880 NC |
5549 | probable_sub = 1; |
5550 | else { | |
5551 | while (d < PL_bufend && isSPACE(*d)) | |
5552 | d++; | |
5553 | if (*d == '=' && d[1] == '>') | |
5554 | probable_sub = 1; | |
5555 | } | |
5556 | } | |
5557 | if (probable_sub) { | |
7a6d04f4 | 5558 | gv = gv_fetchpv(PL_tokenbuf, GV_ADD, SVt_PVCV); |
6154021b RGS |
5559 | op_free(pl_yylval.opval); |
5560 | pl_yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
5561 | pl_yylval.opval->op_private |= OPpENTERSUB_NOPAREN; | |
5db06880 NC |
5562 | PL_last_lop = PL_oldbufptr; |
5563 | PL_last_lop_op = OP_ENTERSUB; | |
cd81e915 NC |
5564 | PL_nextwhite = PL_thiswhite; |
5565 | PL_thiswhite = 0; | |
5566 | start_force(PL_curforce); | |
6154021b | 5567 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
5db06880 | 5568 | PL_expect = XTERM; |
cd81e915 NC |
5569 | PL_nextwhite = nextPL_nextwhite; |
5570 | curmad('X', PL_thistoken); | |
6b29d1f5 | 5571 | PL_thistoken = newSVpvs(""); |
5db06880 NC |
5572 | force_next(WORD); |
5573 | TOKEN(NOAMP); | |
5574 | } | |
5575 | #else | |
6154021b | 5576 | NEXTVAL_NEXTTOKE.opval = pl_yylval.opval; |
3280af22 | 5577 | PL_expect = XTERM; |
8990e307 LW |
5578 | force_next(WORD); |
5579 | TOKEN(NOAMP); | |
5db06880 | 5580 | #endif |
8990e307 | 5581 | } |
748a9306 | 5582 | |
8990e307 LW |
5583 | /* Call it a bare word */ |
5584 | ||
5603f27d | 5585 | if (PL_hints & HINT_STRICT_SUBS) |
6154021b | 5586 | pl_yylval.opval->op_private |= OPpCONST_STRICT; |
5603f27d GS |
5587 | else { |
5588 | bareword: | |
041457d9 DM |
5589 | if (lastchar != '-') { |
5590 | if (ckWARN(WARN_RESERVED)) { | |
c35e046a AL |
5591 | d = PL_tokenbuf; |
5592 | while (isLOWER(*d)) | |
5593 | d++; | |
da51bb9b | 5594 | if (!*d && !gv_stashpv(PL_tokenbuf, 0)) |
9014280d | 5595 | Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved, |
5603f27d GS |
5596 | PL_tokenbuf); |
5597 | } | |
748a9306 LW |
5598 | } |
5599 | } | |
c3e0f903 GS |
5600 | |
5601 | safe_bareword: | |
3792a11b NC |
5602 | if ((lastchar == '*' || lastchar == '%' || lastchar == '&') |
5603 | && ckWARN_d(WARN_AMBIGUOUS)) { | |
9014280d | 5604 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5605 | "Operator or semicolon missing before %c%s", |
3280af22 | 5606 | lastchar, PL_tokenbuf); |
9014280d | 5607 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
0453d815 | 5608 | "Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
5609 | lastchar, lastchar); |
5610 | } | |
93a17b20 | 5611 | TOKEN(WORD); |
79072805 | 5612 | } |
79072805 | 5613 | |
68dc0745 | 5614 | case KEY___FILE__: |
6154021b | 5615 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 5616 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 5617 | TERM(THING); |
5618 | ||
79072805 | 5619 | case KEY___LINE__: |
6154021b | 5620 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 5621 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 5622 | TERM(THING); |
68dc0745 | 5623 | |
5624 | case KEY___PACKAGE__: | |
6154021b | 5625 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
3280af22 | 5626 | (PL_curstash |
5aaec2b4 | 5627 | ? newSVhek(HvNAME_HEK(PL_curstash)) |
3280af22 | 5628 | : &PL_sv_undef)); |
79072805 | 5629 | TERM(THING); |
79072805 | 5630 | |
e50aee73 | 5631 | case KEY___DATA__: |
79072805 LW |
5632 | case KEY___END__: { |
5633 | GV *gv; | |
3280af22 | 5634 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
bfed75c6 | 5635 | const char *pname = "main"; |
3280af22 | 5636 | if (PL_tokenbuf[2] == 'D') |
bfcb3514 | 5637 | pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash); |
f776e3cd NC |
5638 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD, |
5639 | SVt_PVIO); | |
a5f75d66 | 5640 | GvMULTI_on(gv); |
79072805 | 5641 | if (!GvIO(gv)) |
a0d0e21e | 5642 | GvIOp(gv) = newIO(); |
3280af22 | 5643 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
5644 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
5645 | { | |
f54cb97a | 5646 | const int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
5647 | fcntl(fd,F_SETFD,fd >= 3); |
5648 | } | |
79072805 | 5649 | #endif |
fd049845 | 5650 | /* Mark this internal pseudo-handle as clean */ |
5651 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
4c84d7f2 | 5652 | if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 5653 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 5654 | else |
50952442 | 5655 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
5656 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
5657 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 5658 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 5659 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
5660 | if (PL_bufend-PL_bufptr > 2 |
5661 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
5662 | { |
5663 | Off_t loc = 0; | |
50952442 | 5664 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
5665 | loc = PerlIO_tell(PL_rsfp); |
5666 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
5667 | } | |
2986a63f JH |
5668 | #ifdef NETWARE |
5669 | if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) { | |
5670 | #else | |
c39cd008 | 5671 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { |
2986a63f | 5672 | #endif /* NETWARE */ |
1143fce0 JH |
5673 | #ifdef PERLIO_IS_STDIO /* really? */ |
5674 | # if defined(__BORLANDC__) | |
cb359b41 JH |
5675 | /* XXX see note in do_binmode() */ |
5676 | ((FILE*)PL_rsfp)->flags &= ~_F_BIN; | |
1143fce0 JH |
5677 | # endif |
5678 | #endif | |
c39cd008 GS |
5679 | if (loc > 0) |
5680 | PerlIO_seek(PL_rsfp, loc, 0); | |
5681 | } | |
5682 | } | |
5683 | #endif | |
7948272d | 5684 | #ifdef PERLIO_LAYERS |
52d2e0f4 JH |
5685 | if (!IN_BYTES) { |
5686 | if (UTF) | |
5687 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
5688 | else if (PL_encoding) { | |
5689 | SV *name; | |
5690 | dSP; | |
5691 | ENTER; | |
5692 | SAVETMPS; | |
5693 | PUSHMARK(sp); | |
5694 | EXTEND(SP, 1); | |
5695 | XPUSHs(PL_encoding); | |
5696 | PUTBACK; | |
5697 | call_method("name", G_SCALAR); | |
5698 | SPAGAIN; | |
5699 | name = POPs; | |
5700 | PUTBACK; | |
bfed75c6 | 5701 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, |
52d2e0f4 | 5702 | Perl_form(aTHX_ ":encoding(%"SVf")", |
be2597df | 5703 | SVfARG(name))); |
52d2e0f4 JH |
5704 | FREETMPS; |
5705 | LEAVE; | |
5706 | } | |
5707 | } | |
7948272d | 5708 | #endif |
5db06880 NC |
5709 | #ifdef PERL_MAD |
5710 | if (PL_madskills) { | |
cd81e915 NC |
5711 | if (PL_realtokenstart >= 0) { |
5712 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; | |
5713 | if (!PL_endwhite) | |
6b29d1f5 | 5714 | PL_endwhite = newSVpvs(""); |
cd81e915 NC |
5715 | sv_catsv(PL_endwhite, PL_thiswhite); |
5716 | PL_thiswhite = 0; | |
5717 | sv_catpvn(PL_endwhite, tstart, PL_bufend - tstart); | |
5718 | PL_realtokenstart = -1; | |
5db06880 | 5719 | } |
cd81e915 | 5720 | while ((s = filter_gets(PL_endwhite, PL_rsfp, |
1a9a51d4 | 5721 | SvCUR(PL_endwhite))) != NULL) ; |
5db06880 NC |
5722 | } |
5723 | #endif | |
4608196e | 5724 | PL_rsfp = NULL; |
79072805 LW |
5725 | } |
5726 | goto fake_eof; | |
e929a76b | 5727 | } |
de3bb511 | 5728 | |
8990e307 | 5729 | case KEY_AUTOLOAD: |
ed6116ce | 5730 | case KEY_DESTROY: |
79072805 | 5731 | case KEY_BEGIN: |
3c10abe3 | 5732 | case KEY_UNITCHECK: |
7d30b5c4 | 5733 | case KEY_CHECK: |
7d07dbc2 | 5734 | case KEY_INIT: |
7d30b5c4 | 5735 | case KEY_END: |
3280af22 NIS |
5736 | if (PL_expect == XSTATE) { |
5737 | s = PL_bufptr; | |
93a17b20 | 5738 | goto really_sub; |
79072805 LW |
5739 | } |
5740 | goto just_a_word; | |
5741 | ||
a0d0e21e LW |
5742 | case KEY_CORE: |
5743 | if (*s == ':' && s[1] == ':') { | |
5744 | s += 2; | |
748a9306 | 5745 | d = s; |
3280af22 | 5746 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
5458a98a | 5747 | if (!(tmp = keyword(PL_tokenbuf, len, 0))) |
6798c92b | 5748 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); |
a0d0e21e LW |
5749 | if (tmp < 0) |
5750 | tmp = -tmp; | |
850e8516 | 5751 | else if (tmp == KEY_require || tmp == KEY_do) |
a72a1c8b | 5752 | /* that's a way to remember we saw "CORE::" */ |
850e8516 | 5753 | orig_keyword = tmp; |
a0d0e21e LW |
5754 | goto reserved_word; |
5755 | } | |
5756 | goto just_a_word; | |
5757 | ||
463ee0b2 LW |
5758 | case KEY_abs: |
5759 | UNI(OP_ABS); | |
5760 | ||
79072805 LW |
5761 | case KEY_alarm: |
5762 | UNI(OP_ALARM); | |
5763 | ||
5764 | case KEY_accept: | |
a0d0e21e | 5765 | LOP(OP_ACCEPT,XTERM); |
79072805 | 5766 | |
463ee0b2 LW |
5767 | case KEY_and: |
5768 | OPERATOR(ANDOP); | |
5769 | ||
79072805 | 5770 | case KEY_atan2: |
a0d0e21e | 5771 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 5772 | |
79072805 | 5773 | case KEY_bind: |
a0d0e21e | 5774 | LOP(OP_BIND,XTERM); |
79072805 LW |
5775 | |
5776 | case KEY_binmode: | |
1c1fc3ea | 5777 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
5778 | |
5779 | case KEY_bless: | |
a0d0e21e | 5780 | LOP(OP_BLESS,XTERM); |
79072805 | 5781 | |
0d863452 RH |
5782 | case KEY_break: |
5783 | FUN0(OP_BREAK); | |
5784 | ||
79072805 LW |
5785 | case KEY_chop: |
5786 | UNI(OP_CHOP); | |
5787 | ||
5788 | case KEY_continue: | |
0d863452 RH |
5789 | /* When 'use switch' is in effect, continue has a dual |
5790 | life as a control operator. */ | |
5791 | { | |
ef89dcc3 | 5792 | if (!FEATURE_IS_ENABLED("switch")) |
0d863452 RH |
5793 | PREBLOCK(CONTINUE); |
5794 | else { | |
5795 | /* We have to disambiguate the two senses of | |
5796 | "continue". If the next token is a '{' then | |
5797 | treat it as the start of a continue block; | |
5798 | otherwise treat it as a control operator. | |
5799 | */ | |
5800 | s = skipspace(s); | |
5801 | if (*s == '{') | |
79072805 | 5802 | PREBLOCK(CONTINUE); |
0d863452 RH |
5803 | else |
5804 | FUN0(OP_CONTINUE); | |
5805 | } | |
5806 | } | |
79072805 LW |
5807 | |
5808 | case KEY_chdir: | |
fafc274c NC |
5809 | /* may use HOME */ |
5810 | (void)gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV); | |
79072805 LW |
5811 | UNI(OP_CHDIR); |
5812 | ||
5813 | case KEY_close: | |
5814 | UNI(OP_CLOSE); | |
5815 | ||
5816 | case KEY_closedir: | |
5817 | UNI(OP_CLOSEDIR); | |
5818 | ||
5819 | case KEY_cmp: | |
5820 | Eop(OP_SCMP); | |
5821 | ||
5822 | case KEY_caller: | |
5823 | UNI(OP_CALLER); | |
5824 | ||
5825 | case KEY_crypt: | |
5826 | #ifdef FCRYPT | |
f4c556ac GS |
5827 | if (!PL_cryptseen) { |
5828 | PL_cryptseen = TRUE; | |
de3bb511 | 5829 | init_des(); |
f4c556ac | 5830 | } |
a687059c | 5831 | #endif |
a0d0e21e | 5832 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
5833 | |
5834 | case KEY_chmod: | |
a0d0e21e | 5835 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
5836 | |
5837 | case KEY_chown: | |
a0d0e21e | 5838 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
5839 | |
5840 | case KEY_connect: | |
a0d0e21e | 5841 | LOP(OP_CONNECT,XTERM); |
79072805 | 5842 | |
463ee0b2 LW |
5843 | case KEY_chr: |
5844 | UNI(OP_CHR); | |
5845 | ||
79072805 LW |
5846 | case KEY_cos: |
5847 | UNI(OP_COS); | |
5848 | ||
5849 | case KEY_chroot: | |
5850 | UNI(OP_CHROOT); | |
5851 | ||
0d863452 RH |
5852 | case KEY_default: |
5853 | PREBLOCK(DEFAULT); | |
5854 | ||
79072805 | 5855 | case KEY_do: |
29595ff2 | 5856 | s = SKIPSPACE1(s); |
79072805 | 5857 | if (*s == '{') |
a0d0e21e | 5858 | PRETERMBLOCK(DO); |
79072805 | 5859 | if (*s != '\'') |
89c5585f | 5860 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
850e8516 RGS |
5861 | if (orig_keyword == KEY_do) { |
5862 | orig_keyword = 0; | |
6154021b | 5863 | pl_yylval.ival = 1; |
850e8516 RGS |
5864 | } |
5865 | else | |
6154021b | 5866 | pl_yylval.ival = 0; |
378cc40b | 5867 | OPERATOR(DO); |
79072805 LW |
5868 | |
5869 | case KEY_die: | |
3280af22 | 5870 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 5871 | LOP(OP_DIE,XTERM); |
79072805 LW |
5872 | |
5873 | case KEY_defined: | |
5874 | UNI(OP_DEFINED); | |
5875 | ||
5876 | case KEY_delete: | |
a0d0e21e | 5877 | UNI(OP_DELETE); |
79072805 LW |
5878 | |
5879 | case KEY_dbmopen: | |
5c1737d1 | 5880 | gv_fetchpvs("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
a0d0e21e | 5881 | LOP(OP_DBMOPEN,XTERM); |
79072805 LW |
5882 | |
5883 | case KEY_dbmclose: | |
5884 | UNI(OP_DBMCLOSE); | |
5885 | ||
5886 | case KEY_dump: | |
a0d0e21e | 5887 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5888 | LOOPX(OP_DUMP); |
5889 | ||
5890 | case KEY_else: | |
5891 | PREBLOCK(ELSE); | |
5892 | ||
5893 | case KEY_elsif: | |
6154021b | 5894 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5895 | OPERATOR(ELSIF); |
5896 | ||
5897 | case KEY_eq: | |
5898 | Eop(OP_SEQ); | |
5899 | ||
a0d0e21e LW |
5900 | case KEY_exists: |
5901 | UNI(OP_EXISTS); | |
4e553d73 | 5902 | |
79072805 | 5903 | case KEY_exit: |
5db06880 NC |
5904 | if (PL_madskills) |
5905 | UNI(OP_INT); | |
79072805 LW |
5906 | UNI(OP_EXIT); |
5907 | ||
5908 | case KEY_eval: | |
29595ff2 | 5909 | s = SKIPSPACE1(s); |
3280af22 | 5910 | PL_expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 5911 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
5912 | |
5913 | case KEY_eof: | |
5914 | UNI(OP_EOF); | |
5915 | ||
5916 | case KEY_exp: | |
5917 | UNI(OP_EXP); | |
5918 | ||
5919 | case KEY_each: | |
5920 | UNI(OP_EACH); | |
5921 | ||
5922 | case KEY_exec: | |
a0d0e21e | 5923 | LOP(OP_EXEC,XREF); |
79072805 LW |
5924 | |
5925 | case KEY_endhostent: | |
5926 | FUN0(OP_EHOSTENT); | |
5927 | ||
5928 | case KEY_endnetent: | |
5929 | FUN0(OP_ENETENT); | |
5930 | ||
5931 | case KEY_endservent: | |
5932 | FUN0(OP_ESERVENT); | |
5933 | ||
5934 | case KEY_endprotoent: | |
5935 | FUN0(OP_EPROTOENT); | |
5936 | ||
5937 | case KEY_endpwent: | |
5938 | FUN0(OP_EPWENT); | |
5939 | ||
5940 | case KEY_endgrent: | |
5941 | FUN0(OP_EGRENT); | |
5942 | ||
5943 | case KEY_for: | |
5944 | case KEY_foreach: | |
6154021b | 5945 | pl_yylval.ival = CopLINE(PL_curcop); |
29595ff2 | 5946 | s = SKIPSPACE1(s); |
7e2040f0 | 5947 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 5948 | char *p = s; |
5db06880 NC |
5949 | #ifdef PERL_MAD |
5950 | int soff = s - SvPVX(PL_linestr); /* for skipspace realloc */ | |
5951 | #endif | |
5952 | ||
3280af22 | 5953 | if ((PL_bufend - p) >= 3 && |
55497cff | 5954 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
5955 | p += 2; | |
77ca0c92 LW |
5956 | else if ((PL_bufend - p) >= 4 && |
5957 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
5958 | p += 3; | |
29595ff2 | 5959 | p = PEEKSPACE(p); |
7e2040f0 | 5960 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
5961 | p = scan_ident(p, PL_bufend, |
5962 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
29595ff2 | 5963 | p = PEEKSPACE(p); |
77ca0c92 LW |
5964 | } |
5965 | if (*p != '$') | |
cea2e8a9 | 5966 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
5db06880 NC |
5967 | #ifdef PERL_MAD |
5968 | s = SvPVX(PL_linestr) + soff; | |
5969 | #endif | |
55497cff | 5970 | } |
79072805 LW |
5971 | OPERATOR(FOR); |
5972 | ||
5973 | case KEY_formline: | |
a0d0e21e | 5974 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
5975 | |
5976 | case KEY_fork: | |
5977 | FUN0(OP_FORK); | |
5978 | ||
5979 | case KEY_fcntl: | |
a0d0e21e | 5980 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
5981 | |
5982 | case KEY_fileno: | |
5983 | UNI(OP_FILENO); | |
5984 | ||
5985 | case KEY_flock: | |
a0d0e21e | 5986 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
5987 | |
5988 | case KEY_gt: | |
5989 | Rop(OP_SGT); | |
5990 | ||
5991 | case KEY_ge: | |
5992 | Rop(OP_SGE); | |
5993 | ||
5994 | case KEY_grep: | |
2c38e13d | 5995 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
5996 | |
5997 | case KEY_goto: | |
a0d0e21e | 5998 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
5999 | LOOPX(OP_GOTO); |
6000 | ||
6001 | case KEY_gmtime: | |
6002 | UNI(OP_GMTIME); | |
6003 | ||
6004 | case KEY_getc: | |
6f33ba73 | 6005 | UNIDOR(OP_GETC); |
79072805 LW |
6006 | |
6007 | case KEY_getppid: | |
6008 | FUN0(OP_GETPPID); | |
6009 | ||
6010 | case KEY_getpgrp: | |
6011 | UNI(OP_GETPGRP); | |
6012 | ||
6013 | case KEY_getpriority: | |
a0d0e21e | 6014 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
6015 | |
6016 | case KEY_getprotobyname: | |
6017 | UNI(OP_GPBYNAME); | |
6018 | ||
6019 | case KEY_getprotobynumber: | |
a0d0e21e | 6020 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
6021 | |
6022 | case KEY_getprotoent: | |
6023 | FUN0(OP_GPROTOENT); | |
6024 | ||
6025 | case KEY_getpwent: | |
6026 | FUN0(OP_GPWENT); | |
6027 | ||
6028 | case KEY_getpwnam: | |
ff68c719 | 6029 | UNI(OP_GPWNAM); |
79072805 LW |
6030 | |
6031 | case KEY_getpwuid: | |
ff68c719 | 6032 | UNI(OP_GPWUID); |
79072805 LW |
6033 | |
6034 | case KEY_getpeername: | |
6035 | UNI(OP_GETPEERNAME); | |
6036 | ||
6037 | case KEY_gethostbyname: | |
6038 | UNI(OP_GHBYNAME); | |
6039 | ||
6040 | case KEY_gethostbyaddr: | |
a0d0e21e | 6041 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
6042 | |
6043 | case KEY_gethostent: | |
6044 | FUN0(OP_GHOSTENT); | |
6045 | ||
6046 | case KEY_getnetbyname: | |
6047 | UNI(OP_GNBYNAME); | |
6048 | ||
6049 | case KEY_getnetbyaddr: | |
a0d0e21e | 6050 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
6051 | |
6052 | case KEY_getnetent: | |
6053 | FUN0(OP_GNETENT); | |
6054 | ||
6055 | case KEY_getservbyname: | |
a0d0e21e | 6056 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
6057 | |
6058 | case KEY_getservbyport: | |
a0d0e21e | 6059 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
6060 | |
6061 | case KEY_getservent: | |
6062 | FUN0(OP_GSERVENT); | |
6063 | ||
6064 | case KEY_getsockname: | |
6065 | UNI(OP_GETSOCKNAME); | |
6066 | ||
6067 | case KEY_getsockopt: | |
a0d0e21e | 6068 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
6069 | |
6070 | case KEY_getgrent: | |
6071 | FUN0(OP_GGRENT); | |
6072 | ||
6073 | case KEY_getgrnam: | |
ff68c719 | 6074 | UNI(OP_GGRNAM); |
79072805 LW |
6075 | |
6076 | case KEY_getgrgid: | |
ff68c719 | 6077 | UNI(OP_GGRGID); |
79072805 LW |
6078 | |
6079 | case KEY_getlogin: | |
6080 | FUN0(OP_GETLOGIN); | |
6081 | ||
0d863452 | 6082 | case KEY_given: |
6154021b | 6083 | pl_yylval.ival = CopLINE(PL_curcop); |
0d863452 RH |
6084 | OPERATOR(GIVEN); |
6085 | ||
93a17b20 | 6086 | case KEY_glob: |
a0d0e21e | 6087 | LOP(OP_GLOB,XTERM); |
93a17b20 | 6088 | |
79072805 LW |
6089 | case KEY_hex: |
6090 | UNI(OP_HEX); | |
6091 | ||
6092 | case KEY_if: | |
6154021b | 6093 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6094 | OPERATOR(IF); |
6095 | ||
6096 | case KEY_index: | |
a0d0e21e | 6097 | LOP(OP_INDEX,XTERM); |
79072805 LW |
6098 | |
6099 | case KEY_int: | |
6100 | UNI(OP_INT); | |
6101 | ||
6102 | case KEY_ioctl: | |
a0d0e21e | 6103 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
6104 | |
6105 | case KEY_join: | |
a0d0e21e | 6106 | LOP(OP_JOIN,XTERM); |
79072805 LW |
6107 | |
6108 | case KEY_keys: | |
6109 | UNI(OP_KEYS); | |
6110 | ||
6111 | case KEY_kill: | |
a0d0e21e | 6112 | LOP(OP_KILL,XTERM); |
79072805 LW |
6113 | |
6114 | case KEY_last: | |
a0d0e21e | 6115 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 6116 | LOOPX(OP_LAST); |
4e553d73 | 6117 | |
79072805 LW |
6118 | case KEY_lc: |
6119 | UNI(OP_LC); | |
6120 | ||
6121 | case KEY_lcfirst: | |
6122 | UNI(OP_LCFIRST); | |
6123 | ||
6124 | case KEY_local: | |
6154021b | 6125 | pl_yylval.ival = 0; |
79072805 LW |
6126 | OPERATOR(LOCAL); |
6127 | ||
6128 | case KEY_length: | |
6129 | UNI(OP_LENGTH); | |
6130 | ||
6131 | case KEY_lt: | |
6132 | Rop(OP_SLT); | |
6133 | ||
6134 | case KEY_le: | |
6135 | Rop(OP_SLE); | |
6136 | ||
6137 | case KEY_localtime: | |
6138 | UNI(OP_LOCALTIME); | |
6139 | ||
6140 | case KEY_log: | |
6141 | UNI(OP_LOG); | |
6142 | ||
6143 | case KEY_link: | |
a0d0e21e | 6144 | LOP(OP_LINK,XTERM); |
79072805 LW |
6145 | |
6146 | case KEY_listen: | |
a0d0e21e | 6147 | LOP(OP_LISTEN,XTERM); |
79072805 | 6148 | |
c0329465 MB |
6149 | case KEY_lock: |
6150 | UNI(OP_LOCK); | |
6151 | ||
79072805 LW |
6152 | case KEY_lstat: |
6153 | UNI(OP_LSTAT); | |
6154 | ||
6155 | case KEY_m: | |
8782bef2 | 6156 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
6157 | TERM(sublex_start()); |
6158 | ||
a0d0e21e | 6159 | case KEY_map: |
2c38e13d | 6160 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 6161 | |
79072805 | 6162 | case KEY_mkdir: |
a0d0e21e | 6163 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
6164 | |
6165 | case KEY_msgctl: | |
a0d0e21e | 6166 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
6167 | |
6168 | case KEY_msgget: | |
a0d0e21e | 6169 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
6170 | |
6171 | case KEY_msgrcv: | |
a0d0e21e | 6172 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
6173 | |
6174 | case KEY_msgsnd: | |
a0d0e21e | 6175 | LOP(OP_MSGSND,XTERM); |
79072805 | 6176 | |
77ca0c92 | 6177 | case KEY_our: |
93a17b20 | 6178 | case KEY_my: |
952306ac | 6179 | case KEY_state: |
eac04b2e | 6180 | PL_in_my = (U16)tmp; |
29595ff2 | 6181 | s = SKIPSPACE1(s); |
7e2040f0 | 6182 | if (isIDFIRST_lazy_if(s,UTF)) { |
5db06880 NC |
6183 | #ifdef PERL_MAD |
6184 | char* start = s; | |
6185 | #endif | |
3280af22 | 6186 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
6187 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
6188 | goto really_sub; | |
def3634b | 6189 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 6190 | if (!PL_in_my_stash) { |
c750a3ec | 6191 | char tmpbuf[1024]; |
3280af22 | 6192 | PL_bufptr = s; |
d9fad198 | 6193 | my_snprintf(tmpbuf, sizeof(tmpbuf), "No such class %.1000s", PL_tokenbuf); |
c750a3ec MB |
6194 | yyerror(tmpbuf); |
6195 | } | |
5db06880 NC |
6196 | #ifdef PERL_MAD |
6197 | if (PL_madskills) { /* just add type to declarator token */ | |
cd81e915 NC |
6198 | sv_catsv(PL_thistoken, PL_nextwhite); |
6199 | PL_nextwhite = 0; | |
6200 | sv_catpvn(PL_thistoken, start, s - start); | |
5db06880 NC |
6201 | } |
6202 | #endif | |
c750a3ec | 6203 | } |
6154021b | 6204 | pl_yylval.ival = 1; |
55497cff | 6205 | OPERATOR(MY); |
93a17b20 | 6206 | |
79072805 | 6207 | case KEY_next: |
a0d0e21e | 6208 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6209 | LOOPX(OP_NEXT); |
6210 | ||
6211 | case KEY_ne: | |
6212 | Eop(OP_SNE); | |
6213 | ||
a0d0e21e | 6214 | case KEY_no: |
468aa647 | 6215 | s = tokenize_use(0, s); |
a0d0e21e LW |
6216 | OPERATOR(USE); |
6217 | ||
6218 | case KEY_not: | |
29595ff2 | 6219 | if (*s == '(' || (s = SKIPSPACE1(s), *s == '(')) |
2d2e263d LW |
6220 | FUN1(OP_NOT); |
6221 | else | |
6222 | OPERATOR(NOTOP); | |
a0d0e21e | 6223 | |
79072805 | 6224 | case KEY_open: |
29595ff2 | 6225 | s = SKIPSPACE1(s); |
7e2040f0 | 6226 | if (isIDFIRST_lazy_if(s,UTF)) { |
f54cb97a | 6227 | const char *t; |
c35e046a AL |
6228 | for (d = s; isALNUM_lazy_if(d,UTF);) |
6229 | d++; | |
6230 | for (t=d; isSPACE(*t);) | |
6231 | t++; | |
e2ab214b | 6232 | if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE) |
66fbe8fb HS |
6233 | /* [perl #16184] */ |
6234 | && !(t[0] == '=' && t[1] == '>') | |
6235 | ) { | |
5f66b61c | 6236 | int parms_len = (int)(d-s); |
9014280d | 6237 | Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE), |
0453d815 | 6238 | "Precedence problem: open %.*s should be open(%.*s)", |
5f66b61c | 6239 | parms_len, s, parms_len, s); |
66fbe8fb | 6240 | } |
93a17b20 | 6241 | } |
a0d0e21e | 6242 | LOP(OP_OPEN,XTERM); |
79072805 | 6243 | |
463ee0b2 | 6244 | case KEY_or: |
6154021b | 6245 | pl_yylval.ival = OP_OR; |
463ee0b2 LW |
6246 | OPERATOR(OROP); |
6247 | ||
79072805 LW |
6248 | case KEY_ord: |
6249 | UNI(OP_ORD); | |
6250 | ||
6251 | case KEY_oct: | |
6252 | UNI(OP_OCT); | |
6253 | ||
6254 | case KEY_opendir: | |
a0d0e21e | 6255 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
6256 | |
6257 | case KEY_print: | |
3280af22 | 6258 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6259 | LOP(OP_PRINT,XREF); |
79072805 LW |
6260 | |
6261 | case KEY_printf: | |
3280af22 | 6262 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 6263 | LOP(OP_PRTF,XREF); |
79072805 | 6264 | |
c07a80fd | 6265 | case KEY_prototype: |
6266 | UNI(OP_PROTOTYPE); | |
6267 | ||
79072805 | 6268 | case KEY_push: |
a0d0e21e | 6269 | LOP(OP_PUSH,XTERM); |
79072805 LW |
6270 | |
6271 | case KEY_pop: | |
6f33ba73 | 6272 | UNIDOR(OP_POP); |
79072805 | 6273 | |
a0d0e21e | 6274 | case KEY_pos: |
6f33ba73 | 6275 | UNIDOR(OP_POS); |
4e553d73 | 6276 | |
79072805 | 6277 | case KEY_pack: |
a0d0e21e | 6278 | LOP(OP_PACK,XTERM); |
79072805 LW |
6279 | |
6280 | case KEY_package: | |
a0d0e21e | 6281 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
6282 | OPERATOR(PACKAGE); |
6283 | ||
6284 | case KEY_pipe: | |
a0d0e21e | 6285 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
6286 | |
6287 | case KEY_q: | |
5db06880 | 6288 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6289 | if (!s) |
d4c19fe8 | 6290 | missingterm(NULL); |
6154021b | 6291 | pl_yylval.ival = OP_CONST; |
79072805 LW |
6292 | TERM(sublex_start()); |
6293 | ||
a0d0e21e LW |
6294 | case KEY_quotemeta: |
6295 | UNI(OP_QUOTEMETA); | |
6296 | ||
8990e307 | 6297 | case KEY_qw: |
5db06880 | 6298 | s = scan_str(s,!!PL_madskills,FALSE); |
8990e307 | 6299 | if (!s) |
d4c19fe8 | 6300 | missingterm(NULL); |
3480a8d2 | 6301 | PL_expect = XOPERATOR; |
8127e0e3 GS |
6302 | force_next(')'); |
6303 | if (SvCUR(PL_lex_stuff)) { | |
5f66b61c | 6304 | OP *words = NULL; |
8127e0e3 | 6305 | int warned = 0; |
3280af22 | 6306 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 6307 | while (len) { |
d4c19fe8 AL |
6308 | for (; isSPACE(*d) && len; --len, ++d) |
6309 | /**/; | |
8127e0e3 | 6310 | if (len) { |
d4c19fe8 | 6311 | SV *sv; |
f54cb97a | 6312 | const char *b = d; |
e476b1b5 | 6313 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
6314 | for (; !isSPACE(*d) && len; --len, ++d) { |
6315 | if (*d == ',') { | |
9014280d | 6316 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6317 | "Possible attempt to separate words with commas"); |
6318 | ++warned; | |
6319 | } | |
6320 | else if (*d == '#') { | |
9014280d | 6321 | Perl_warner(aTHX_ packWARN(WARN_QW), |
8127e0e3 GS |
6322 | "Possible attempt to put comments in qw() list"); |
6323 | ++warned; | |
6324 | } | |
6325 | } | |
6326 | } | |
6327 | else { | |
d4c19fe8 AL |
6328 | for (; !isSPACE(*d) && len; --len, ++d) |
6329 | /**/; | |
8127e0e3 | 6330 | } |
740cce10 | 6331 | sv = newSVpvn_utf8(b, d-b, DO_UTF8(PL_lex_stuff)); |
8127e0e3 | 6332 | words = append_elem(OP_LIST, words, |
7948272d | 6333 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 6334 | } |
6335 | } | |
8127e0e3 | 6336 | if (words) { |
cd81e915 | 6337 | start_force(PL_curforce); |
9ded7720 | 6338 | NEXTVAL_NEXTTOKE.opval = words; |
8127e0e3 GS |
6339 | force_next(THING); |
6340 | } | |
55497cff | 6341 | } |
37fd879b | 6342 | if (PL_lex_stuff) { |
8127e0e3 | 6343 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 6344 | PL_lex_stuff = NULL; |
37fd879b | 6345 | } |
3280af22 | 6346 | PL_expect = XTERM; |
8127e0e3 | 6347 | TOKEN('('); |
8990e307 | 6348 | |
79072805 | 6349 | case KEY_qq: |
5db06880 | 6350 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6351 | if (!s) |
d4c19fe8 | 6352 | missingterm(NULL); |
6154021b | 6353 | pl_yylval.ival = OP_STRINGIFY; |
3280af22 | 6354 | if (SvIVX(PL_lex_stuff) == '\'') |
45977657 | 6355 | SvIV_set(PL_lex_stuff, 0); /* qq'$foo' should intepolate */ |
79072805 LW |
6356 | TERM(sublex_start()); |
6357 | ||
8782bef2 GB |
6358 | case KEY_qr: |
6359 | s = scan_pat(s,OP_QR); | |
6360 | TERM(sublex_start()); | |
6361 | ||
79072805 | 6362 | case KEY_qx: |
5db06880 | 6363 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 6364 | if (!s) |
d4c19fe8 | 6365 | missingterm(NULL); |
9b201d7d | 6366 | readpipe_override(); |
79072805 LW |
6367 | TERM(sublex_start()); |
6368 | ||
6369 | case KEY_return: | |
6370 | OLDLOP(OP_RETURN); | |
6371 | ||
6372 | case KEY_require: | |
29595ff2 | 6373 | s = SKIPSPACE1(s); |
e759cc13 RGS |
6374 | if (isDIGIT(*s)) { |
6375 | s = force_version(s, FALSE); | |
a7cb1f99 | 6376 | } |
e759cc13 RGS |
6377 | else if (*s != 'v' || !isDIGIT(s[1]) |
6378 | || (s = force_version(s, TRUE), *s == 'v')) | |
6379 | { | |
a7cb1f99 GS |
6380 | *PL_tokenbuf = '\0'; |
6381 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 6382 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
da51bb9b | 6383 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), GV_ADD); |
a7cb1f99 GS |
6384 | else if (*s == '<') |
6385 | yyerror("<> should be quotes"); | |
6386 | } | |
a72a1c8b RGS |
6387 | if (orig_keyword == KEY_require) { |
6388 | orig_keyword = 0; | |
6154021b | 6389 | pl_yylval.ival = 1; |
a72a1c8b RGS |
6390 | } |
6391 | else | |
6154021b | 6392 | pl_yylval.ival = 0; |
a72a1c8b RGS |
6393 | PL_expect = XTERM; |
6394 | PL_bufptr = s; | |
6395 | PL_last_uni = PL_oldbufptr; | |
6396 | PL_last_lop_op = OP_REQUIRE; | |
6397 | s = skipspace(s); | |
6398 | return REPORT( (int)REQUIRE ); | |
79072805 LW |
6399 | |
6400 | case KEY_reset: | |
6401 | UNI(OP_RESET); | |
6402 | ||
6403 | case KEY_redo: | |
a0d0e21e | 6404 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
6405 | LOOPX(OP_REDO); |
6406 | ||
6407 | case KEY_rename: | |
a0d0e21e | 6408 | LOP(OP_RENAME,XTERM); |
79072805 LW |
6409 | |
6410 | case KEY_rand: | |
6411 | UNI(OP_RAND); | |
6412 | ||
6413 | case KEY_rmdir: | |
6414 | UNI(OP_RMDIR); | |
6415 | ||
6416 | case KEY_rindex: | |
a0d0e21e | 6417 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
6418 | |
6419 | case KEY_read: | |
a0d0e21e | 6420 | LOP(OP_READ,XTERM); |
79072805 LW |
6421 | |
6422 | case KEY_readdir: | |
6423 | UNI(OP_READDIR); | |
6424 | ||
93a17b20 | 6425 | case KEY_readline: |
6f33ba73 | 6426 | UNIDOR(OP_READLINE); |
93a17b20 LW |
6427 | |
6428 | case KEY_readpipe: | |
0858480c | 6429 | UNIDOR(OP_BACKTICK); |
93a17b20 | 6430 | |
79072805 LW |
6431 | case KEY_rewinddir: |
6432 | UNI(OP_REWINDDIR); | |
6433 | ||
6434 | case KEY_recv: | |
a0d0e21e | 6435 | LOP(OP_RECV,XTERM); |
79072805 LW |
6436 | |
6437 | case KEY_reverse: | |
a0d0e21e | 6438 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
6439 | |
6440 | case KEY_readlink: | |
6f33ba73 | 6441 | UNIDOR(OP_READLINK); |
79072805 LW |
6442 | |
6443 | case KEY_ref: | |
6444 | UNI(OP_REF); | |
6445 | ||
6446 | case KEY_s: | |
6447 | s = scan_subst(s); | |
6154021b | 6448 | if (pl_yylval.opval) |
79072805 LW |
6449 | TERM(sublex_start()); |
6450 | else | |
6451 | TOKEN(1); /* force error */ | |
6452 | ||
0d863452 RH |
6453 | case KEY_say: |
6454 | checkcomma(s,PL_tokenbuf,"filehandle"); | |
6455 | LOP(OP_SAY,XREF); | |
6456 | ||
a0d0e21e LW |
6457 | case KEY_chomp: |
6458 | UNI(OP_CHOMP); | |
4e553d73 | 6459 | |
79072805 LW |
6460 | case KEY_scalar: |
6461 | UNI(OP_SCALAR); | |
6462 | ||
6463 | case KEY_select: | |
a0d0e21e | 6464 | LOP(OP_SELECT,XTERM); |
79072805 LW |
6465 | |
6466 | case KEY_seek: | |
a0d0e21e | 6467 | LOP(OP_SEEK,XTERM); |
79072805 LW |
6468 | |
6469 | case KEY_semctl: | |
a0d0e21e | 6470 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
6471 | |
6472 | case KEY_semget: | |
a0d0e21e | 6473 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
6474 | |
6475 | case KEY_semop: | |
a0d0e21e | 6476 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
6477 | |
6478 | case KEY_send: | |
a0d0e21e | 6479 | LOP(OP_SEND,XTERM); |
79072805 LW |
6480 | |
6481 | case KEY_setpgrp: | |
a0d0e21e | 6482 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
6483 | |
6484 | case KEY_setpriority: | |
a0d0e21e | 6485 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
6486 | |
6487 | case KEY_sethostent: | |
ff68c719 | 6488 | UNI(OP_SHOSTENT); |
79072805 LW |
6489 | |
6490 | case KEY_setnetent: | |
ff68c719 | 6491 | UNI(OP_SNETENT); |
79072805 LW |
6492 | |
6493 | case KEY_setservent: | |
ff68c719 | 6494 | UNI(OP_SSERVENT); |
79072805 LW |
6495 | |
6496 | case KEY_setprotoent: | |
ff68c719 | 6497 | UNI(OP_SPROTOENT); |
79072805 LW |
6498 | |
6499 | case KEY_setpwent: | |
6500 | FUN0(OP_SPWENT); | |
6501 | ||
6502 | case KEY_setgrent: | |
6503 | FUN0(OP_SGRENT); | |
6504 | ||
6505 | case KEY_seekdir: | |
a0d0e21e | 6506 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
6507 | |
6508 | case KEY_setsockopt: | |
a0d0e21e | 6509 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
6510 | |
6511 | case KEY_shift: | |
6f33ba73 | 6512 | UNIDOR(OP_SHIFT); |
79072805 LW |
6513 | |
6514 | case KEY_shmctl: | |
a0d0e21e | 6515 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
6516 | |
6517 | case KEY_shmget: | |
a0d0e21e | 6518 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
6519 | |
6520 | case KEY_shmread: | |
a0d0e21e | 6521 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
6522 | |
6523 | case KEY_shmwrite: | |
a0d0e21e | 6524 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
6525 | |
6526 | case KEY_shutdown: | |
a0d0e21e | 6527 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
6528 | |
6529 | case KEY_sin: | |
6530 | UNI(OP_SIN); | |
6531 | ||
6532 | case KEY_sleep: | |
6533 | UNI(OP_SLEEP); | |
6534 | ||
6535 | case KEY_socket: | |
a0d0e21e | 6536 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
6537 | |
6538 | case KEY_socketpair: | |
a0d0e21e | 6539 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
6540 | |
6541 | case KEY_sort: | |
3280af22 | 6542 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
29595ff2 | 6543 | s = SKIPSPACE1(s); |
79072805 | 6544 | if (*s == ';' || *s == ')') /* probably a close */ |
cea2e8a9 | 6545 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 6546 | PL_expect = XTERM; |
15f0808c | 6547 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 6548 | LOP(OP_SORT,XREF); |
79072805 LW |
6549 | |
6550 | case KEY_split: | |
a0d0e21e | 6551 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
6552 | |
6553 | case KEY_sprintf: | |
a0d0e21e | 6554 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
6555 | |
6556 | case KEY_splice: | |
a0d0e21e | 6557 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
6558 | |
6559 | case KEY_sqrt: | |
6560 | UNI(OP_SQRT); | |
6561 | ||
6562 | case KEY_srand: | |
6563 | UNI(OP_SRAND); | |
6564 | ||
6565 | case KEY_stat: | |
6566 | UNI(OP_STAT); | |
6567 | ||
6568 | case KEY_study: | |
79072805 LW |
6569 | UNI(OP_STUDY); |
6570 | ||
6571 | case KEY_substr: | |
a0d0e21e | 6572 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
6573 | |
6574 | case KEY_format: | |
6575 | case KEY_sub: | |
93a17b20 | 6576 | really_sub: |
09bef843 | 6577 | { |
3280af22 | 6578 | char tmpbuf[sizeof PL_tokenbuf]; |
9c5ffd7c | 6579 | SSize_t tboffset = 0; |
09bef843 | 6580 | expectation attrful; |
28cc6278 | 6581 | bool have_name, have_proto; |
f54cb97a | 6582 | const int key = tmp; |
09bef843 | 6583 | |
5db06880 NC |
6584 | #ifdef PERL_MAD |
6585 | SV *tmpwhite = 0; | |
6586 | ||
cd81e915 | 6587 | char *tstart = SvPVX(PL_linestr) + PL_realtokenstart; |
5db06880 | 6588 | SV *subtoken = newSVpvn(tstart, s - tstart); |
cd81e915 | 6589 | PL_thistoken = 0; |
5db06880 NC |
6590 | |
6591 | d = s; | |
6592 | s = SKIPSPACE2(s,tmpwhite); | |
6593 | #else | |
09bef843 | 6594 | s = skipspace(s); |
5db06880 | 6595 | #endif |
09bef843 | 6596 | |
7e2040f0 | 6597 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
6598 | (*s == ':' && s[1] == ':')) |
6599 | { | |
5db06880 NC |
6600 | #ifdef PERL_MAD |
6601 | SV *nametoke; | |
6602 | #endif | |
6603 | ||
09bef843 SB |
6604 | PL_expect = XBLOCK; |
6605 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
6606 | /* remember buffer pos'n for later force_word */ |
6607 | tboffset = s - PL_oldbufptr; | |
09bef843 | 6608 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5db06880 NC |
6609 | #ifdef PERL_MAD |
6610 | if (PL_madskills) | |
6611 | nametoke = newSVpvn(s, d - s); | |
6612 | #endif | |
6502358f NC |
6613 | if (memchr(tmpbuf, ':', len)) |
6614 | sv_setpvn(PL_subname, tmpbuf, len); | |
09bef843 SB |
6615 | else { |
6616 | sv_setsv(PL_subname,PL_curstname); | |
396482e1 | 6617 | sv_catpvs(PL_subname,"::"); |
09bef843 SB |
6618 | sv_catpvn(PL_subname,tmpbuf,len); |
6619 | } | |
09bef843 | 6620 | have_name = TRUE; |
5db06880 NC |
6621 | |
6622 | #ifdef PERL_MAD | |
6623 | ||
6624 | start_force(0); | |
6625 | CURMAD('X', nametoke); | |
6626 | CURMAD('_', tmpwhite); | |
6627 | (void) force_word(PL_oldbufptr + tboffset, WORD, | |
6628 | FALSE, TRUE, TRUE); | |
6629 | ||
6630 | s = SKIPSPACE2(d,tmpwhite); | |
6631 | #else | |
6632 | s = skipspace(d); | |
6633 | #endif | |
09bef843 | 6634 | } |
463ee0b2 | 6635 | else { |
09bef843 SB |
6636 | if (key == KEY_my) |
6637 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
6638 | PL_expect = XTERMBLOCK; | |
6639 | attrful = XATTRTERM; | |
c69006e4 | 6640 | sv_setpvn(PL_subname,"?",1); |
09bef843 | 6641 | have_name = FALSE; |
463ee0b2 | 6642 | } |
4633a7c4 | 6643 | |
09bef843 SB |
6644 | if (key == KEY_format) { |
6645 | if (*s == '=') | |
6646 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5db06880 | 6647 | #ifdef PERL_MAD |
cd81e915 | 6648 | PL_thistoken = subtoken; |
5db06880 NC |
6649 | s = d; |
6650 | #else | |
09bef843 | 6651 | if (have_name) |
b1b65b59 JH |
6652 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6653 | FALSE, TRUE, TRUE); | |
5db06880 | 6654 | #endif |
09bef843 SB |
6655 | OPERATOR(FORMAT); |
6656 | } | |
79072805 | 6657 | |
09bef843 SB |
6658 | /* Look for a prototype */ |
6659 | if (*s == '(') { | |
d9f2850e RGS |
6660 | char *p; |
6661 | bool bad_proto = FALSE; | |
6662 | const bool warnsyntax = ckWARN(WARN_SYNTAX); | |
09bef843 | 6663 | |
5db06880 | 6664 | s = scan_str(s,!!PL_madskills,FALSE); |
37fd879b | 6665 | if (!s) |
09bef843 | 6666 | Perl_croak(aTHX_ "Prototype not terminated"); |
2f758a16 | 6667 | /* strip spaces and check for bad characters */ |
09bef843 SB |
6668 | d = SvPVX(PL_lex_stuff); |
6669 | tmp = 0; | |
d9f2850e RGS |
6670 | for (p = d; *p; ++p) { |
6671 | if (!isSPACE(*p)) { | |
6672 | d[tmp++] = *p; | |
b13fd70a | 6673 | if (warnsyntax && !strchr("$@%*;[]&\\_", *p)) |
d9f2850e | 6674 | bad_proto = TRUE; |
d37a9538 | 6675 | } |
09bef843 | 6676 | } |
d9f2850e RGS |
6677 | d[tmp] = '\0'; |
6678 | if (bad_proto) | |
6679 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), | |
6680 | "Illegal character in prototype for %"SVf" : %s", | |
be2597df | 6681 | SVfARG(PL_subname), d); |
b162af07 | 6682 | SvCUR_set(PL_lex_stuff, tmp); |
09bef843 | 6683 | have_proto = TRUE; |
68dc0745 | 6684 | |
5db06880 NC |
6685 | #ifdef PERL_MAD |
6686 | start_force(0); | |
cd81e915 | 6687 | CURMAD('q', PL_thisopen); |
5db06880 | 6688 | CURMAD('_', tmpwhite); |
cd81e915 NC |
6689 | CURMAD('=', PL_thisstuff); |
6690 | CURMAD('Q', PL_thisclose); | |
5db06880 NC |
6691 | NEXTVAL_NEXTTOKE.opval = |
6692 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
1a9a51d4 | 6693 | PL_lex_stuff = NULL; |
5db06880 NC |
6694 | force_next(THING); |
6695 | ||
6696 | s = SKIPSPACE2(s,tmpwhite); | |
6697 | #else | |
09bef843 | 6698 | s = skipspace(s); |
5db06880 | 6699 | #endif |
4633a7c4 | 6700 | } |
09bef843 SB |
6701 | else |
6702 | have_proto = FALSE; | |
6703 | ||
6704 | if (*s == ':' && s[1] != ':') | |
6705 | PL_expect = attrful; | |
8e742a20 MHM |
6706 | else if (*s != '{' && key == KEY_sub) { |
6707 | if (!have_name) | |
6708 | Perl_croak(aTHX_ "Illegal declaration of anonymous subroutine"); | |
6709 | else if (*s != ';') | |
be2597df | 6710 | Perl_croak(aTHX_ "Illegal declaration of subroutine %"SVf, SVfARG(PL_subname)); |
8e742a20 | 6711 | } |
09bef843 | 6712 | |
5db06880 NC |
6713 | #ifdef PERL_MAD |
6714 | start_force(0); | |
6715 | if (tmpwhite) { | |
6716 | if (PL_madskills) | |
6b29d1f5 | 6717 | curmad('^', newSVpvs("")); |
5db06880 NC |
6718 | CURMAD('_', tmpwhite); |
6719 | } | |
6720 | force_next(0); | |
6721 | ||
cd81e915 | 6722 | PL_thistoken = subtoken; |
5db06880 | 6723 | #else |
09bef843 | 6724 | if (have_proto) { |
9ded7720 | 6725 | NEXTVAL_NEXTTOKE.opval = |
b1b65b59 | 6726 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); |
a0714e2c | 6727 | PL_lex_stuff = NULL; |
09bef843 | 6728 | force_next(THING); |
68dc0745 | 6729 | } |
5db06880 | 6730 | #endif |
09bef843 | 6731 | if (!have_name) { |
49a54bbe NC |
6732 | if (PL_curstash) |
6733 | sv_setpvs(PL_subname, "__ANON__"); | |
6734 | else | |
6735 | sv_setpvs(PL_subname, "__ANON__::__ANON__"); | |
09bef843 | 6736 | TOKEN(ANONSUB); |
4633a7c4 | 6737 | } |
5db06880 | 6738 | #ifndef PERL_MAD |
b1b65b59 JH |
6739 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
6740 | FALSE, TRUE, TRUE); | |
5db06880 | 6741 | #endif |
09bef843 SB |
6742 | if (key == KEY_my) |
6743 | TOKEN(MYSUB); | |
6744 | TOKEN(SUB); | |
4633a7c4 | 6745 | } |
79072805 LW |
6746 | |
6747 | case KEY_system: | |
a0d0e21e | 6748 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
6749 | |
6750 | case KEY_symlink: | |
a0d0e21e | 6751 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
6752 | |
6753 | case KEY_syscall: | |
a0d0e21e | 6754 | LOP(OP_SYSCALL,XTERM); |
79072805 | 6755 | |
c07a80fd | 6756 | case KEY_sysopen: |
6757 | LOP(OP_SYSOPEN,XTERM); | |
6758 | ||
137443ea | 6759 | case KEY_sysseek: |
6760 | LOP(OP_SYSSEEK,XTERM); | |
6761 | ||
79072805 | 6762 | case KEY_sysread: |
a0d0e21e | 6763 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
6764 | |
6765 | case KEY_syswrite: | |
a0d0e21e | 6766 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
6767 | |
6768 | case KEY_tr: | |
6769 | s = scan_trans(s); | |
6770 | TERM(sublex_start()); | |
6771 | ||
6772 | case KEY_tell: | |
6773 | UNI(OP_TELL); | |
6774 | ||
6775 | case KEY_telldir: | |
6776 | UNI(OP_TELLDIR); | |
6777 | ||
463ee0b2 | 6778 | case KEY_tie: |
a0d0e21e | 6779 | LOP(OP_TIE,XTERM); |
463ee0b2 | 6780 | |
c07a80fd | 6781 | case KEY_tied: |
6782 | UNI(OP_TIED); | |
6783 | ||
79072805 LW |
6784 | case KEY_time: |
6785 | FUN0(OP_TIME); | |
6786 | ||
6787 | case KEY_times: | |
6788 | FUN0(OP_TMS); | |
6789 | ||
6790 | case KEY_truncate: | |
a0d0e21e | 6791 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
6792 | |
6793 | case KEY_uc: | |
6794 | UNI(OP_UC); | |
6795 | ||
6796 | case KEY_ucfirst: | |
6797 | UNI(OP_UCFIRST); | |
6798 | ||
463ee0b2 LW |
6799 | case KEY_untie: |
6800 | UNI(OP_UNTIE); | |
6801 | ||
79072805 | 6802 | case KEY_until: |
6154021b | 6803 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6804 | OPERATOR(UNTIL); |
6805 | ||
6806 | case KEY_unless: | |
6154021b | 6807 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6808 | OPERATOR(UNLESS); |
6809 | ||
6810 | case KEY_unlink: | |
a0d0e21e | 6811 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
6812 | |
6813 | case KEY_undef: | |
6f33ba73 | 6814 | UNIDOR(OP_UNDEF); |
79072805 LW |
6815 | |
6816 | case KEY_unpack: | |
a0d0e21e | 6817 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
6818 | |
6819 | case KEY_utime: | |
a0d0e21e | 6820 | LOP(OP_UTIME,XTERM); |
79072805 LW |
6821 | |
6822 | case KEY_umask: | |
6f33ba73 | 6823 | UNIDOR(OP_UMASK); |
79072805 LW |
6824 | |
6825 | case KEY_unshift: | |
a0d0e21e LW |
6826 | LOP(OP_UNSHIFT,XTERM); |
6827 | ||
6828 | case KEY_use: | |
468aa647 | 6829 | s = tokenize_use(1, s); |
a0d0e21e | 6830 | OPERATOR(USE); |
79072805 LW |
6831 | |
6832 | case KEY_values: | |
6833 | UNI(OP_VALUES); | |
6834 | ||
6835 | case KEY_vec: | |
a0d0e21e | 6836 | LOP(OP_VEC,XTERM); |
79072805 | 6837 | |
0d863452 | 6838 | case KEY_when: |
6154021b | 6839 | pl_yylval.ival = CopLINE(PL_curcop); |
0d863452 RH |
6840 | OPERATOR(WHEN); |
6841 | ||
79072805 | 6842 | case KEY_while: |
6154021b | 6843 | pl_yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
6844 | OPERATOR(WHILE); |
6845 | ||
6846 | case KEY_warn: | |
3280af22 | 6847 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 6848 | LOP(OP_WARN,XTERM); |
79072805 LW |
6849 | |
6850 | case KEY_wait: | |
6851 | FUN0(OP_WAIT); | |
6852 | ||
6853 | case KEY_waitpid: | |
a0d0e21e | 6854 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
6855 | |
6856 | case KEY_wantarray: | |
6857 | FUN0(OP_WANTARRAY); | |
6858 | ||
6859 | case KEY_write: | |
9d116dd7 JH |
6860 | #ifdef EBCDIC |
6861 | { | |
df3728a2 JH |
6862 | char ctl_l[2]; |
6863 | ctl_l[0] = toCTRL('L'); | |
6864 | ctl_l[1] = '\0'; | |
fafc274c | 6865 | gv_fetchpvn_flags(ctl_l, 1, GV_ADD|GV_NOTQUAL, SVt_PV); |
9d116dd7 JH |
6866 | } |
6867 | #else | |
fafc274c NC |
6868 | /* Make sure $^L is defined */ |
6869 | gv_fetchpvs("\f", GV_ADD|GV_NOTQUAL, SVt_PV); | |
9d116dd7 | 6870 | #endif |
79072805 LW |
6871 | UNI(OP_ENTERWRITE); |
6872 | ||
6873 | case KEY_x: | |
3280af22 | 6874 | if (PL_expect == XOPERATOR) |
79072805 LW |
6875 | Mop(OP_REPEAT); |
6876 | check_uni(); | |
6877 | goto just_a_word; | |
6878 | ||
a0d0e21e | 6879 | case KEY_xor: |
6154021b | 6880 | pl_yylval.ival = OP_XOR; |
a0d0e21e LW |
6881 | OPERATOR(OROP); |
6882 | ||
79072805 LW |
6883 | case KEY_y: |
6884 | s = scan_trans(s); | |
6885 | TERM(sublex_start()); | |
6886 | } | |
49dc05e3 | 6887 | }} |
79072805 | 6888 | } |
bf4acbe4 GS |
6889 | #ifdef __SC__ |
6890 | #pragma segment Main | |
6891 | #endif | |
79072805 | 6892 | |
e930465f JH |
6893 | static int |
6894 | S_pending_ident(pTHX) | |
8eceec63 | 6895 | { |
97aff369 | 6896 | dVAR; |
8eceec63 | 6897 | register char *d; |
bbd11bfc | 6898 | PADOFFSET tmp = 0; |
8eceec63 SC |
6899 | /* pit holds the identifier we read and pending_ident is reset */ |
6900 | char pit = PL_pending_ident; | |
9bde8eb0 NC |
6901 | const STRLEN tokenbuf_len = strlen(PL_tokenbuf); |
6902 | /* All routes through this function want to know if there is a colon. */ | |
c099d646 | 6903 | const char *const has_colon = (const char*) memchr (PL_tokenbuf, ':', tokenbuf_len); |
8eceec63 SC |
6904 | PL_pending_ident = 0; |
6905 | ||
cd81e915 | 6906 | /* PL_realtokenstart = realtokenend = PL_bufptr - SvPVX(PL_linestr); */ |
8eceec63 | 6907 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
b6007c36 | 6908 | "### Pending identifier '%s'\n", PL_tokenbuf); }); |
8eceec63 SC |
6909 | |
6910 | /* if we're in a my(), we can't allow dynamics here. | |
6911 | $foo'bar has already been turned into $foo::bar, so | |
6912 | just check for colons. | |
6913 | ||
6914 | if it's a legal name, the OP is a PADANY. | |
6915 | */ | |
6916 | if (PL_in_my) { | |
6917 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ | |
9bde8eb0 | 6918 | if (has_colon) |
8eceec63 SC |
6919 | yyerror(Perl_form(aTHX_ "No package name allowed for " |
6920 | "variable %s in \"our\"", | |
6921 | PL_tokenbuf)); | |
dd2155a4 | 6922 | tmp = allocmy(PL_tokenbuf); |
8eceec63 SC |
6923 | } |
6924 | else { | |
9bde8eb0 | 6925 | if (has_colon) |
952306ac RGS |
6926 | yyerror(Perl_form(aTHX_ PL_no_myglob, |
6927 | PL_in_my == KEY_my ? "my" : "state", PL_tokenbuf)); | |
8eceec63 | 6928 | |
6154021b RGS |
6929 | pl_yylval.opval = newOP(OP_PADANY, 0); |
6930 | pl_yylval.opval->op_targ = allocmy(PL_tokenbuf); | |
8eceec63 SC |
6931 | return PRIVATEREF; |
6932 | } | |
6933 | } | |
6934 | ||
6935 | /* | |
6936 | build the ops for accesses to a my() variable. | |
6937 | ||
6938 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
6939 | then used in a comparison. This catches most, but not | |
6940 | all cases. For instance, it catches | |
6941 | sort { my($a); $a <=> $b } | |
6942 | but not | |
6943 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
6944 | (although why you'd do that is anyone's guess). | |
6945 | */ | |
6946 | ||
9bde8eb0 | 6947 | if (!has_colon) { |
8716503d DM |
6948 | if (!PL_in_my) |
6949 | tmp = pad_findmy(PL_tokenbuf); | |
6950 | if (tmp != NOT_IN_PAD) { | |
8eceec63 | 6951 | /* might be an "our" variable" */ |
00b1698f | 6952 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
8eceec63 | 6953 | /* build ops for a bareword */ |
b64e5050 AL |
6954 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
6955 | HEK * const stashname = HvNAME_HEK(stash); | |
6956 | SV * const sym = newSVhek(stashname); | |
396482e1 | 6957 | sv_catpvs(sym, "::"); |
9bde8eb0 | 6958 | sv_catpvn(sym, PL_tokenbuf+1, tokenbuf_len - 1); |
6154021b RGS |
6959 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); |
6960 | pl_yylval.opval->op_private = OPpCONST_ENTERED; | |
7a5fd60d | 6961 | gv_fetchsv(sym, |
8eceec63 SC |
6962 | (PL_in_eval |
6963 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
700078d2 | 6964 | : GV_ADDMULTI |
8eceec63 SC |
6965 | ), |
6966 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
6967 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
6968 | : SVt_PVHV)); | |
6969 | return WORD; | |
6970 | } | |
6971 | ||
6972 | /* if it's a sort block and they're naming $a or $b */ | |
6973 | if (PL_last_lop_op == OP_SORT && | |
6974 | PL_tokenbuf[0] == '$' && | |
6975 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
6976 | && !PL_tokenbuf[2]) | |
6977 | { | |
6978 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; | |
6979 | d < PL_bufend && *d != '\n'; | |
6980 | d++) | |
6981 | { | |
6982 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
6983 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", | |
6984 | PL_tokenbuf); | |
6985 | } | |
6986 | } | |
6987 | } | |
6988 | ||
6154021b RGS |
6989 | pl_yylval.opval = newOP(OP_PADANY, 0); |
6990 | pl_yylval.opval->op_targ = tmp; | |
8eceec63 SC |
6991 | return PRIVATEREF; |
6992 | } | |
6993 | } | |
6994 | ||
6995 | /* | |
6996 | Whine if they've said @foo in a doublequoted string, | |
6997 | and @foo isn't a variable we can find in the symbol | |
6998 | table. | |
6999 | */ | |
7000 | if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { | |
9bde8eb0 NC |
7001 | GV *const gv = gv_fetchpvn_flags(PL_tokenbuf + 1, tokenbuf_len - 1, 0, |
7002 | SVt_PVAV); | |
8eceec63 | 7003 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
e879d94f RGS |
7004 | && ckWARN(WARN_AMBIGUOUS) |
7005 | /* DO NOT warn for @- and @+ */ | |
7006 | && !( PL_tokenbuf[2] == '\0' && | |
7007 | ( PL_tokenbuf[1] == '-' || PL_tokenbuf[1] == '+' )) | |
7008 | ) | |
8eceec63 SC |
7009 | { |
7010 | /* Downgraded from fatal to warning 20000522 mjd */ | |
9014280d | 7011 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
8eceec63 SC |
7012 | "Possible unintended interpolation of %s in string", |
7013 | PL_tokenbuf); | |
7014 | } | |
7015 | } | |
7016 | ||
7017 | /* build ops for a bareword */ | |
6154021b | 7018 | pl_yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpvn(PL_tokenbuf + 1, |
9bde8eb0 | 7019 | tokenbuf_len - 1)); |
6154021b | 7020 | pl_yylval.opval->op_private = OPpCONST_ENTERED; |
9bde8eb0 NC |
7021 | gv_fetchpvn_flags( |
7022 | PL_tokenbuf + 1, tokenbuf_len - 1, | |
d6069db2 RGS |
7023 | /* If the identifier refers to a stash, don't autovivify it. |
7024 | * Change 24660 had the side effect of causing symbol table | |
7025 | * hashes to always be defined, even if they were freshly | |
7026 | * created and the only reference in the entire program was | |
7027 | * the single statement with the defined %foo::bar:: test. | |
7028 | * It appears that all code in the wild doing this actually | |
7029 | * wants to know whether sub-packages have been loaded, so | |
7030 | * by avoiding auto-vivifying symbol tables, we ensure that | |
7031 | * defined %foo::bar:: continues to be false, and the existing | |
7032 | * tests still give the expected answers, even though what | |
7033 | * they're actually testing has now changed subtly. | |
7034 | */ | |
9bde8eb0 NC |
7035 | (*PL_tokenbuf == '%' |
7036 | && *(d = PL_tokenbuf + tokenbuf_len - 1) == ':' | |
7037 | && d[-1] == ':' | |
d6069db2 RGS |
7038 | ? 0 |
7039 | : PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD), | |
adc51b97 RGS |
7040 | ((PL_tokenbuf[0] == '$') ? SVt_PV |
7041 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
7042 | : SVt_PVHV)); | |
8eceec63 SC |
7043 | return WORD; |
7044 | } | |
7045 | ||
4c3bbe0f MHM |
7046 | /* |
7047 | * The following code was generated by perl_keyword.pl. | |
7048 | */ | |
e2e1dd5a | 7049 | |
79072805 | 7050 | I32 |
5458a98a | 7051 | Perl_keyword (pTHX_ const char *name, I32 len, bool all_keywords) |
4c3bbe0f | 7052 | { |
952306ac | 7053 | dVAR; |
4c3bbe0f MHM |
7054 | switch (len) |
7055 | { | |
7056 | case 1: /* 5 tokens of length 1 */ | |
7057 | switch (name[0]) | |
e2e1dd5a | 7058 | { |
4c3bbe0f MHM |
7059 | case 'm': |
7060 | { /* m */ | |
7061 | return KEY_m; | |
7062 | } | |
7063 | ||
4c3bbe0f MHM |
7064 | case 'q': |
7065 | { /* q */ | |
7066 | return KEY_q; | |
7067 | } | |
7068 | ||
4c3bbe0f MHM |
7069 | case 's': |
7070 | { /* s */ | |
7071 | return KEY_s; | |
7072 | } | |
7073 | ||
4c3bbe0f MHM |
7074 | case 'x': |
7075 | { /* x */ | |
7076 | return -KEY_x; | |
7077 | } | |
7078 | ||
4c3bbe0f MHM |
7079 | case 'y': |
7080 | { /* y */ | |
7081 | return KEY_y; | |
7082 | } | |
7083 | ||
4c3bbe0f MHM |
7084 | default: |
7085 | goto unknown; | |
e2e1dd5a | 7086 | } |
4c3bbe0f MHM |
7087 | |
7088 | case 2: /* 18 tokens of length 2 */ | |
7089 | switch (name[0]) | |
e2e1dd5a | 7090 | { |
4c3bbe0f MHM |
7091 | case 'd': |
7092 | if (name[1] == 'o') | |
7093 | { /* do */ | |
7094 | return KEY_do; | |
7095 | } | |
7096 | ||
7097 | goto unknown; | |
7098 | ||
7099 | case 'e': | |
7100 | if (name[1] == 'q') | |
7101 | { /* eq */ | |
7102 | return -KEY_eq; | |
7103 | } | |
7104 | ||
7105 | goto unknown; | |
7106 | ||
7107 | case 'g': | |
7108 | switch (name[1]) | |
7109 | { | |
7110 | case 'e': | |
7111 | { /* ge */ | |
7112 | return -KEY_ge; | |
7113 | } | |
7114 | ||
4c3bbe0f MHM |
7115 | case 't': |
7116 | { /* gt */ | |
7117 | return -KEY_gt; | |
7118 | } | |
7119 | ||
4c3bbe0f MHM |
7120 | default: |
7121 | goto unknown; | |
7122 | } | |
7123 | ||
7124 | case 'i': | |
7125 | if (name[1] == 'f') | |
7126 | { /* if */ | |
7127 | return KEY_if; | |
7128 | } | |
7129 | ||
7130 | goto unknown; | |
7131 | ||
7132 | case 'l': | |
7133 | switch (name[1]) | |
7134 | { | |
7135 | case 'c': | |
7136 | { /* lc */ | |
7137 | return -KEY_lc; | |
7138 | } | |
7139 | ||
4c3bbe0f MHM |
7140 | case 'e': |
7141 | { /* le */ | |
7142 | return -KEY_le; | |
7143 | } | |
7144 | ||
4c3bbe0f MHM |
7145 | case 't': |
7146 | { /* lt */ | |
7147 | return -KEY_lt; | |
7148 | } | |
7149 | ||
4c3bbe0f MHM |
7150 | default: |
7151 | goto unknown; | |
7152 | } | |
7153 | ||
7154 | case 'm': | |
7155 | if (name[1] == 'y') | |
7156 | { /* my */ | |
7157 | return KEY_my; | |
7158 | } | |
7159 | ||
7160 | goto unknown; | |
7161 | ||
7162 | case 'n': | |
7163 | switch (name[1]) | |
7164 | { | |
7165 | case 'e': | |
7166 | { /* ne */ | |
7167 | return -KEY_ne; | |
7168 | } | |
7169 | ||
4c3bbe0f MHM |
7170 | case 'o': |
7171 | { /* no */ | |
7172 | return KEY_no; | |
7173 | } | |
7174 | ||
4c3bbe0f MHM |
7175 | default: |
7176 | goto unknown; | |
7177 | } | |
7178 | ||
7179 | case 'o': | |
7180 | if (name[1] == 'r') | |
7181 | { /* or */ | |
7182 | return -KEY_or; | |
7183 | } | |
7184 | ||
7185 | goto unknown; | |
7186 | ||
7187 | case 'q': | |
7188 | switch (name[1]) | |
7189 | { | |
7190 | case 'q': | |
7191 | { /* qq */ | |
7192 | return KEY_qq; | |
7193 | } | |
7194 | ||
4c3bbe0f MHM |
7195 | case 'r': |
7196 | { /* qr */ | |
7197 | return KEY_qr; | |
7198 | } | |
7199 | ||
4c3bbe0f MHM |
7200 | case 'w': |
7201 | { /* qw */ | |
7202 | return KEY_qw; | |
7203 | } | |
7204 | ||
4c3bbe0f MHM |
7205 | case 'x': |
7206 | { /* qx */ | |
7207 | return KEY_qx; | |
7208 | } | |
7209 | ||
4c3bbe0f MHM |
7210 | default: |
7211 | goto unknown; | |
7212 | } | |
7213 | ||
7214 | case 't': | |
7215 | if (name[1] == 'r') | |
7216 | { /* tr */ | |
7217 | return KEY_tr; | |
7218 | } | |
7219 | ||
7220 | goto unknown; | |
7221 | ||
7222 | case 'u': | |
7223 | if (name[1] == 'c') | |
7224 | { /* uc */ | |
7225 | return -KEY_uc; | |
7226 | } | |
7227 | ||
7228 | goto unknown; | |
7229 | ||
7230 | default: | |
7231 | goto unknown; | |
e2e1dd5a | 7232 | } |
4c3bbe0f | 7233 | |
0d863452 | 7234 | case 3: /* 29 tokens of length 3 */ |
4c3bbe0f | 7235 | switch (name[0]) |
e2e1dd5a | 7236 | { |
4c3bbe0f MHM |
7237 | case 'E': |
7238 | if (name[1] == 'N' && | |
7239 | name[2] == 'D') | |
7240 | { /* END */ | |
7241 | return KEY_END; | |
7242 | } | |
7243 | ||
7244 | goto unknown; | |
7245 | ||
7246 | case 'a': | |
7247 | switch (name[1]) | |
7248 | { | |
7249 | case 'b': | |
7250 | if (name[2] == 's') | |
7251 | { /* abs */ | |
7252 | return -KEY_abs; | |
7253 | } | |
7254 | ||
7255 | goto unknown; | |
7256 | ||
7257 | case 'n': | |
7258 | if (name[2] == 'd') | |
7259 | { /* and */ | |
7260 | return -KEY_and; | |
7261 | } | |
7262 | ||
7263 | goto unknown; | |
7264 | ||
7265 | default: | |
7266 | goto unknown; | |
7267 | } | |
7268 | ||
7269 | case 'c': | |
7270 | switch (name[1]) | |
7271 | { | |
7272 | case 'h': | |
7273 | if (name[2] == 'r') | |
7274 | { /* chr */ | |
7275 | return -KEY_chr; | |
7276 | } | |
7277 | ||
7278 | goto unknown; | |
7279 | ||
7280 | case 'm': | |
7281 | if (name[2] == 'p') | |
7282 | { /* cmp */ | |
7283 | return -KEY_cmp; | |
7284 | } | |
7285 | ||
7286 | goto unknown; | |
7287 | ||
7288 | case 'o': | |
7289 | if (name[2] == 's') | |
7290 | { /* cos */ | |
7291 | return -KEY_cos; | |
7292 | } | |
7293 | ||
7294 | goto unknown; | |
7295 | ||
7296 | default: | |
7297 | goto unknown; | |
7298 | } | |
7299 | ||
7300 | case 'd': | |
7301 | if (name[1] == 'i' && | |
7302 | name[2] == 'e') | |
7303 | { /* die */ | |
7304 | return -KEY_die; | |
7305 | } | |
7306 | ||
7307 | goto unknown; | |
7308 | ||
7309 | case 'e': | |
7310 | switch (name[1]) | |
7311 | { | |
7312 | case 'o': | |
7313 | if (name[2] == 'f') | |
7314 | { /* eof */ | |
7315 | return -KEY_eof; | |
7316 | } | |
7317 | ||
7318 | goto unknown; | |
7319 | ||
4c3bbe0f MHM |
7320 | case 'x': |
7321 | if (name[2] == 'p') | |
7322 | { /* exp */ | |
7323 | return -KEY_exp; | |
7324 | } | |
7325 | ||
7326 | goto unknown; | |
7327 | ||
7328 | default: | |
7329 | goto unknown; | |
7330 | } | |
7331 | ||
7332 | case 'f': | |
7333 | if (name[1] == 'o' && | |
7334 | name[2] == 'r') | |
7335 | { /* for */ | |
7336 | return KEY_for; | |
7337 | } | |
7338 | ||
7339 | goto unknown; | |
7340 | ||
7341 | case 'h': | |
7342 | if (name[1] == 'e' && | |
7343 | name[2] == 'x') | |
7344 | { /* hex */ | |
7345 | return -KEY_hex; | |
7346 | } | |
7347 | ||
7348 | goto unknown; | |
7349 | ||
7350 | case 'i': | |
7351 | if (name[1] == 'n' && | |
7352 | name[2] == 't') | |
7353 | { /* int */ | |
7354 | return -KEY_int; | |
7355 | } | |
7356 | ||
7357 | goto unknown; | |
7358 | ||
7359 | case 'l': | |
7360 | if (name[1] == 'o' && | |
7361 | name[2] == 'g') | |
7362 | { /* log */ | |
7363 | return -KEY_log; | |
7364 | } | |
7365 | ||
7366 | goto unknown; | |
7367 | ||
7368 | case 'm': | |
7369 | if (name[1] == 'a' && | |
7370 | name[2] == 'p') | |
7371 | { /* map */ | |
7372 | return KEY_map; | |
7373 | } | |
7374 | ||
7375 | goto unknown; | |
7376 | ||
7377 | case 'n': | |
7378 | if (name[1] == 'o' && | |
7379 | name[2] == 't') | |
7380 | { /* not */ | |
7381 | return -KEY_not; | |
7382 | } | |
7383 | ||
7384 | goto unknown; | |
7385 | ||
7386 | case 'o': | |
7387 | switch (name[1]) | |
7388 | { | |
7389 | case 'c': | |
7390 | if (name[2] == 't') | |
7391 | { /* oct */ | |
7392 | return -KEY_oct; | |
7393 | } | |
7394 | ||
7395 | goto unknown; | |
7396 | ||
7397 | case 'r': | |
7398 | if (name[2] == 'd') | |
7399 | { /* ord */ | |
7400 | return -KEY_ord; | |
7401 | } | |
7402 | ||
7403 | goto unknown; | |
7404 | ||
7405 | case 'u': | |
7406 | if (name[2] == 'r') | |
7407 | { /* our */ | |
7408 | return KEY_our; | |
7409 | } | |
7410 | ||
7411 | goto unknown; | |
7412 | ||
7413 | default: | |
7414 | goto unknown; | |
7415 | } | |
7416 | ||
7417 | case 'p': | |
7418 | if (name[1] == 'o') | |
7419 | { | |
7420 | switch (name[2]) | |
7421 | { | |
7422 | case 'p': | |
7423 | { /* pop */ | |
7424 | return -KEY_pop; | |
7425 | } | |
7426 | ||
4c3bbe0f MHM |
7427 | case 's': |
7428 | { /* pos */ | |
7429 | return KEY_pos; | |
7430 | } | |
7431 | ||
4c3bbe0f MHM |
7432 | default: |
7433 | goto unknown; | |
7434 | } | |
7435 | } | |
7436 | ||
7437 | goto unknown; | |
7438 | ||
7439 | case 'r': | |
7440 | if (name[1] == 'e' && | |
7441 | name[2] == 'f') | |
7442 | { /* ref */ | |
7443 | return -KEY_ref; | |
7444 | } | |
7445 | ||
7446 | goto unknown; | |
7447 | ||
7448 | case 's': | |
7449 | switch (name[1]) | |
7450 | { | |
0d863452 RH |
7451 | case 'a': |
7452 | if (name[2] == 'y') | |
7453 | { /* say */ | |
e3e804c9 | 7454 | return (all_keywords || FEATURE_IS_ENABLED("say") ? KEY_say : 0); |
0d863452 RH |
7455 | } |
7456 | ||
7457 | goto unknown; | |
7458 | ||
4c3bbe0f MHM |
7459 | case 'i': |
7460 | if (name[2] == 'n') | |
7461 | { /* sin */ | |
7462 | return -KEY_sin; | |
7463 | } | |
7464 | ||
7465 | goto unknown; | |
7466 | ||
7467 | case 'u': | |
7468 | if (name[2] == 'b') | |
7469 | { /* sub */ | |
7470 | return KEY_sub; | |
7471 | } | |
7472 | ||
7473 | goto unknown; | |
7474 | ||
7475 | default: | |
7476 | goto unknown; | |
7477 | } | |
7478 | ||
7479 | case 't': | |
7480 | if (name[1] == 'i' && | |
7481 | name[2] == 'e') | |
7482 | { /* tie */ | |
7483 | return KEY_tie; | |
7484 | } | |
7485 | ||
7486 | goto unknown; | |
7487 | ||
7488 | case 'u': | |
7489 | if (name[1] == 's' && | |
7490 | name[2] == 'e') | |
7491 | { /* use */ | |
7492 | return KEY_use; | |
7493 | } | |
7494 | ||
7495 | goto unknown; | |
7496 | ||
7497 | case 'v': | |
7498 | if (name[1] == 'e' && | |
7499 | name[2] == 'c') | |
7500 | { /* vec */ | |
7501 | return -KEY_vec; | |
7502 | } | |
7503 | ||
7504 | goto unknown; | |
7505 | ||
7506 | case 'x': | |
7507 | if (name[1] == 'o' && | |
7508 | name[2] == 'r') | |
7509 | { /* xor */ | |
7510 | return -KEY_xor; | |
7511 | } | |
7512 | ||
7513 | goto unknown; | |
7514 | ||
7515 | default: | |
7516 | goto unknown; | |
e2e1dd5a | 7517 | } |
4c3bbe0f | 7518 | |
0d863452 | 7519 | case 4: /* 41 tokens of length 4 */ |
4c3bbe0f | 7520 | switch (name[0]) |
e2e1dd5a | 7521 | { |
4c3bbe0f MHM |
7522 | case 'C': |
7523 | if (name[1] == 'O' && | |
7524 | name[2] == 'R' && | |
7525 | name[3] == 'E') | |
7526 | { /* CORE */ | |
7527 | return -KEY_CORE; | |
7528 | } | |
7529 | ||
7530 | goto unknown; | |
7531 | ||
7532 | case 'I': | |
7533 | if (name[1] == 'N' && | |
7534 | name[2] == 'I' && | |
7535 | name[3] == 'T') | |
7536 | { /* INIT */ | |
7537 | return KEY_INIT; | |
7538 | } | |
7539 | ||
7540 | goto unknown; | |
7541 | ||
7542 | case 'b': | |
7543 | if (name[1] == 'i' && | |
7544 | name[2] == 'n' && | |
7545 | name[3] == 'd') | |
7546 | { /* bind */ | |
7547 | return -KEY_bind; | |
7548 | } | |
7549 | ||
7550 | goto unknown; | |
7551 | ||
7552 | case 'c': | |
7553 | if (name[1] == 'h' && | |
7554 | name[2] == 'o' && | |
7555 | name[3] == 'p') | |
7556 | { /* chop */ | |
7557 | return -KEY_chop; | |
7558 | } | |
7559 | ||
7560 | goto unknown; | |
7561 | ||
7562 | case 'd': | |
7563 | if (name[1] == 'u' && | |
7564 | name[2] == 'm' && | |
7565 | name[3] == 'p') | |
7566 | { /* dump */ | |
7567 | return -KEY_dump; | |
7568 | } | |
7569 | ||
7570 | goto unknown; | |
7571 | ||
7572 | case 'e': | |
7573 | switch (name[1]) | |
7574 | { | |
7575 | case 'a': | |
7576 | if (name[2] == 'c' && | |
7577 | name[3] == 'h') | |
7578 | { /* each */ | |
7579 | return -KEY_each; | |
7580 | } | |
7581 | ||
7582 | goto unknown; | |
7583 | ||
7584 | case 'l': | |
7585 | if (name[2] == 's' && | |
7586 | name[3] == 'e') | |
7587 | { /* else */ | |
7588 | return KEY_else; | |
7589 | } | |
7590 | ||
7591 | goto unknown; | |
7592 | ||
7593 | case 'v': | |
7594 | if (name[2] == 'a' && | |
7595 | name[3] == 'l') | |
7596 | { /* eval */ | |
7597 | return KEY_eval; | |
7598 | } | |
7599 | ||
7600 | goto unknown; | |
7601 | ||
7602 | case 'x': | |
7603 | switch (name[2]) | |
7604 | { | |
7605 | case 'e': | |
7606 | if (name[3] == 'c') | |
7607 | { /* exec */ | |
7608 | return -KEY_exec; | |
7609 | } | |
7610 | ||
7611 | goto unknown; | |
7612 | ||
7613 | case 'i': | |
7614 | if (name[3] == 't') | |
7615 | { /* exit */ | |
7616 | return -KEY_exit; | |
7617 | } | |
7618 | ||
7619 | goto unknown; | |
7620 | ||
7621 | default: | |
7622 | goto unknown; | |
7623 | } | |
7624 | ||
7625 | default: | |
7626 | goto unknown; | |
7627 | } | |
7628 | ||
7629 | case 'f': | |
7630 | if (name[1] == 'o' && | |
7631 | name[2] == 'r' && | |
7632 | name[3] == 'k') | |
7633 | { /* fork */ | |
7634 | return -KEY_fork; | |
7635 | } | |
7636 | ||
7637 | goto unknown; | |
7638 | ||
7639 | case 'g': | |
7640 | switch (name[1]) | |
7641 | { | |
7642 | case 'e': | |
7643 | if (name[2] == 't' && | |
7644 | name[3] == 'c') | |
7645 | { /* getc */ | |
7646 | return -KEY_getc; | |
7647 | } | |
7648 | ||
7649 | goto unknown; | |
7650 | ||
7651 | case 'l': | |
7652 | if (name[2] == 'o' && | |
7653 | name[3] == 'b') | |
7654 | { /* glob */ | |
7655 | return KEY_glob; | |
7656 | } | |
7657 | ||
7658 | goto unknown; | |
7659 | ||
7660 | case 'o': | |
7661 | if (name[2] == 't' && | |
7662 | name[3] == 'o') | |
7663 | { /* goto */ | |
7664 | return KEY_goto; | |
7665 | } | |
7666 | ||
7667 | goto unknown; | |
7668 | ||
7669 | case 'r': | |
7670 | if (name[2] == 'e' && | |
7671 | name[3] == 'p') | |
7672 | { /* grep */ | |
7673 | return KEY_grep; | |
7674 | } | |
7675 | ||
7676 | goto unknown; | |
7677 | ||
7678 | default: | |
7679 | goto unknown; | |
7680 | } | |
7681 | ||
7682 | case 'j': | |
7683 | if (name[1] == 'o' && | |
7684 | name[2] == 'i' && | |
7685 | name[3] == 'n') | |
7686 | { /* join */ | |
7687 | return -KEY_join; | |
7688 | } | |
7689 | ||
7690 | goto unknown; | |
7691 | ||
7692 | case 'k': | |
7693 | switch (name[1]) | |
7694 | { | |
7695 | case 'e': | |
7696 | if (name[2] == 'y' && | |
7697 | name[3] == 's') | |
7698 | { /* keys */ | |
7699 | return -KEY_keys; | |
7700 | } | |
7701 | ||
7702 | goto unknown; | |
7703 | ||
7704 | case 'i': | |
7705 | if (name[2] == 'l' && | |
7706 | name[3] == 'l') | |
7707 | { /* kill */ | |
7708 | return -KEY_kill; | |
7709 | } | |
7710 | ||
7711 | goto unknown; | |
7712 | ||
7713 | default: | |
7714 | goto unknown; | |
7715 | } | |
7716 | ||
7717 | case 'l': | |
7718 | switch (name[1]) | |
7719 | { | |
7720 | case 'a': | |
7721 | if (name[2] == 's' && | |
7722 | name[3] == 't') | |
7723 | { /* last */ | |
7724 | return KEY_last; | |
7725 | } | |
7726 | ||
7727 | goto unknown; | |
7728 | ||
7729 | case 'i': | |
7730 | if (name[2] == 'n' && | |
7731 | name[3] == 'k') | |
7732 | { /* link */ | |
7733 | return -KEY_link; | |
7734 | } | |
7735 | ||
7736 | goto unknown; | |
7737 | ||
7738 | case 'o': | |
7739 | if (name[2] == 'c' && | |
7740 | name[3] == 'k') | |
7741 | { /* lock */ | |
7742 | return -KEY_lock; | |
7743 | } | |
7744 | ||
7745 | goto unknown; | |
7746 | ||
7747 | default: | |
7748 | goto unknown; | |
7749 | } | |
7750 | ||
7751 | case 'n': | |
7752 | if (name[1] == 'e' && | |
7753 | name[2] == 'x' && | |
7754 | name[3] == 't') | |
7755 | { /* next */ | |
7756 | return KEY_next; | |
7757 | } | |
7758 | ||
7759 | goto unknown; | |
7760 | ||
7761 | case 'o': | |
7762 | if (name[1] == 'p' && | |
7763 | name[2] == 'e' && | |
7764 | name[3] == 'n') | |
7765 | { /* open */ | |
7766 | return -KEY_open; | |
7767 | } | |
7768 | ||
7769 | goto unknown; | |
7770 | ||
7771 | case 'p': | |
7772 | switch (name[1]) | |
7773 | { | |
7774 | case 'a': | |
7775 | if (name[2] == 'c' && | |
7776 | name[3] == 'k') | |
7777 | { /* pack */ | |
7778 | return -KEY_pack; | |
7779 | } | |
7780 | ||
7781 | goto unknown; | |
7782 | ||
7783 | case 'i': | |
7784 | if (name[2] == 'p' && | |
7785 | name[3] == 'e') | |
7786 | { /* pipe */ | |
7787 | return -KEY_pipe; | |
7788 | } | |
7789 | ||
7790 | goto unknown; | |
7791 | ||
7792 | case 'u': | |
7793 | if (name[2] == 's' && | |
7794 | name[3] == 'h') | |
7795 | { /* push */ | |
7796 | return -KEY_push; | |
7797 | } | |
7798 | ||
7799 | goto unknown; | |
7800 | ||
7801 | default: | |
7802 | goto unknown; | |
7803 | } | |
7804 | ||
7805 | case 'r': | |
7806 | switch (name[1]) | |
7807 | { | |
7808 | case 'a': | |
7809 | if (name[2] == 'n' && | |
7810 | name[3] == 'd') | |
7811 | { /* rand */ | |
7812 | return -KEY_rand; | |
7813 | } | |
7814 | ||
7815 | goto unknown; | |
7816 | ||
7817 | case 'e': | |
7818 | switch (name[2]) | |
7819 | { | |
7820 | case 'a': | |
7821 | if (name[3] == 'd') | |
7822 | { /* read */ | |
7823 | return -KEY_read; | |
7824 | } | |
7825 | ||
7826 | goto unknown; | |
7827 | ||
7828 | case 'c': | |
7829 | if (name[3] == 'v') | |
7830 | { /* recv */ | |
7831 | return -KEY_recv; | |
7832 | } | |
7833 | ||
7834 | goto unknown; | |
7835 | ||
7836 | case 'd': | |
7837 | if (name[3] == 'o') | |
7838 | { /* redo */ | |
7839 | return KEY_redo; | |
7840 | } | |
7841 | ||
7842 | goto unknown; | |
7843 | ||
7844 | default: | |
7845 | goto unknown; | |
7846 | } | |
7847 | ||
7848 | default: | |
7849 | goto unknown; | |
7850 | } | |
7851 | ||
7852 | case 's': | |
7853 | switch (name[1]) | |
7854 | { | |
7855 | case 'e': | |
7856 | switch (name[2]) | |
7857 | { | |
7858 | case 'e': | |
7859 | if (name[3] == 'k') | |
7860 | { /* seek */ | |
7861 | return -KEY_seek; | |
7862 | } | |
7863 | ||
7864 | goto unknown; | |
7865 | ||
7866 | case 'n': | |
7867 | if (name[3] == 'd') | |
7868 | { /* send */ | |
7869 | return -KEY_send; | |
7870 | } | |
7871 | ||
7872 | goto unknown; | |
7873 | ||
7874 | default: | |
7875 | goto unknown; | |
7876 | } | |
7877 | ||
7878 | case 'o': | |
7879 | if (name[2] == 'r' && | |
7880 | name[3] == 't') | |
7881 | { /* sort */ | |
7882 | return KEY_sort; | |
7883 | } | |
7884 | ||
7885 | goto unknown; | |
7886 | ||
7887 | case 'q': | |
7888 | if (name[2] == 'r' && | |
7889 | name[3] == 't') | |
7890 | { /* sqrt */ | |
7891 | return -KEY_sqrt; | |
7892 | } | |
7893 | ||
7894 | goto unknown; | |
7895 | ||
7896 | case 't': | |
7897 | if (name[2] == 'a' && | |
7898 | name[3] == 't') | |
7899 | { /* stat */ | |
7900 | return -KEY_stat; | |
7901 | } | |
7902 | ||
7903 | goto unknown; | |
7904 | ||
7905 | default: | |
7906 | goto unknown; | |
7907 | } | |
7908 | ||
7909 | case 't': | |
7910 | switch (name[1]) | |
7911 | { | |
7912 | case 'e': | |
7913 | if (name[2] == 'l' && | |
7914 | name[3] == 'l') | |
7915 | { /* tell */ | |
7916 | return -KEY_tell; | |
7917 | } | |
7918 | ||
7919 | goto unknown; | |
7920 | ||
7921 | case 'i': | |
7922 | switch (name[2]) | |
7923 | { | |
7924 | case 'e': | |
7925 | if (name[3] == 'd') | |
7926 | { /* tied */ | |
7927 | return KEY_tied; | |
7928 | } | |
7929 | ||
7930 | goto unknown; | |
7931 | ||
7932 | case 'm': | |
7933 | if (name[3] == 'e') | |
7934 | { /* time */ | |
7935 | return -KEY_time; | |
7936 | } | |
7937 | ||
7938 | goto unknown; | |
7939 | ||
7940 | default: | |
7941 | goto unknown; | |
7942 | } | |
7943 | ||
7944 | default: | |
7945 | goto unknown; | |
7946 | } | |
7947 | ||
7948 | case 'w': | |
0d863452 | 7949 | switch (name[1]) |
4c3bbe0f | 7950 | { |
0d863452 | 7951 | case 'a': |
952306ac RGS |
7952 | switch (name[2]) |
7953 | { | |
7954 | case 'i': | |
7955 | if (name[3] == 't') | |
7956 | { /* wait */ | |
7957 | return -KEY_wait; | |
7958 | } | |
4c3bbe0f | 7959 | |
952306ac | 7960 | goto unknown; |
4c3bbe0f | 7961 | |
952306ac RGS |
7962 | case 'r': |
7963 | if (name[3] == 'n') | |
7964 | { /* warn */ | |
7965 | return -KEY_warn; | |
7966 | } | |
4c3bbe0f | 7967 | |
952306ac | 7968 | goto unknown; |
4c3bbe0f | 7969 | |
952306ac RGS |
7970 | default: |
7971 | goto unknown; | |
7972 | } | |
0d863452 RH |
7973 | |
7974 | case 'h': | |
7975 | if (name[2] == 'e' && | |
7976 | name[3] == 'n') | |
7977 | { /* when */ | |
5458a98a | 7978 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_when : 0); |
952306ac | 7979 | } |
4c3bbe0f | 7980 | |
952306ac | 7981 | goto unknown; |
4c3bbe0f | 7982 | |
952306ac RGS |
7983 | default: |
7984 | goto unknown; | |
7985 | } | |
4c3bbe0f | 7986 | |
0d863452 RH |
7987 | default: |
7988 | goto unknown; | |
7989 | } | |
7990 | ||
952306ac | 7991 | case 5: /* 39 tokens of length 5 */ |
4c3bbe0f | 7992 | switch (name[0]) |
e2e1dd5a | 7993 | { |
4c3bbe0f MHM |
7994 | case 'B': |
7995 | if (name[1] == 'E' && | |
7996 | name[2] == 'G' && | |
7997 | name[3] == 'I' && | |
7998 | name[4] == 'N') | |
7999 | { /* BEGIN */ | |
8000 | return KEY_BEGIN; | |
8001 | } | |
8002 | ||
8003 | goto unknown; | |
8004 | ||
8005 | case 'C': | |
8006 | if (name[1] == 'H' && | |
8007 | name[2] == 'E' && | |
8008 | name[3] == 'C' && | |
8009 | name[4] == 'K') | |
8010 | { /* CHECK */ | |
8011 | return KEY_CHECK; | |
8012 | } | |
8013 | ||
8014 | goto unknown; | |
8015 | ||
8016 | case 'a': | |
8017 | switch (name[1]) | |
8018 | { | |
8019 | case 'l': | |
8020 | if (name[2] == 'a' && | |
8021 | name[3] == 'r' && | |
8022 | name[4] == 'm') | |
8023 | { /* alarm */ | |
8024 | return -KEY_alarm; | |
8025 | } | |
8026 | ||
8027 | goto unknown; | |
8028 | ||
8029 | case 't': | |
8030 | if (name[2] == 'a' && | |
8031 | name[3] == 'n' && | |
8032 | name[4] == '2') | |
8033 | { /* atan2 */ | |
8034 | return -KEY_atan2; | |
8035 | } | |
8036 | ||
8037 | goto unknown; | |
8038 | ||
8039 | default: | |
8040 | goto unknown; | |
8041 | } | |
8042 | ||
8043 | case 'b': | |
0d863452 RH |
8044 | switch (name[1]) |
8045 | { | |
8046 | case 'l': | |
8047 | if (name[2] == 'e' && | |
952306ac RGS |
8048 | name[3] == 's' && |
8049 | name[4] == 's') | |
8050 | { /* bless */ | |
8051 | return -KEY_bless; | |
8052 | } | |
4c3bbe0f | 8053 | |
952306ac | 8054 | goto unknown; |
4c3bbe0f | 8055 | |
0d863452 RH |
8056 | case 'r': |
8057 | if (name[2] == 'e' && | |
8058 | name[3] == 'a' && | |
8059 | name[4] == 'k') | |
8060 | { /* break */ | |
5458a98a | 8061 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? -KEY_break : 0); |
0d863452 RH |
8062 | } |
8063 | ||
8064 | goto unknown; | |
8065 | ||
8066 | default: | |
8067 | goto unknown; | |
8068 | } | |
8069 | ||
4c3bbe0f MHM |
8070 | case 'c': |
8071 | switch (name[1]) | |
8072 | { | |
8073 | case 'h': | |
8074 | switch (name[2]) | |
8075 | { | |
8076 | case 'd': | |
8077 | if (name[3] == 'i' && | |
8078 | name[4] == 'r') | |
8079 | { /* chdir */ | |
8080 | return -KEY_chdir; | |
8081 | } | |
8082 | ||
8083 | goto unknown; | |
8084 | ||
8085 | case 'm': | |
8086 | if (name[3] == 'o' && | |
8087 | name[4] == 'd') | |
8088 | { /* chmod */ | |
8089 | return -KEY_chmod; | |
8090 | } | |
8091 | ||
8092 | goto unknown; | |
8093 | ||
8094 | case 'o': | |
8095 | switch (name[3]) | |
8096 | { | |
8097 | case 'm': | |
8098 | if (name[4] == 'p') | |
8099 | { /* chomp */ | |
8100 | return -KEY_chomp; | |
8101 | } | |
8102 | ||
8103 | goto unknown; | |
8104 | ||
8105 | case 'w': | |
8106 | if (name[4] == 'n') | |
8107 | { /* chown */ | |
8108 | return -KEY_chown; | |
8109 | } | |
8110 | ||
8111 | goto unknown; | |
8112 | ||
8113 | default: | |
8114 | goto unknown; | |
8115 | } | |
8116 | ||
8117 | default: | |
8118 | goto unknown; | |
8119 | } | |
8120 | ||
8121 | case 'l': | |
8122 | if (name[2] == 'o' && | |
8123 | name[3] == 's' && | |
8124 | name[4] == 'e') | |
8125 | { /* close */ | |
8126 | return -KEY_close; | |
8127 | } | |
8128 | ||
8129 | goto unknown; | |
8130 | ||
8131 | case 'r': | |
8132 | if (name[2] == 'y' && | |
8133 | name[3] == 'p' && | |
8134 | name[4] == 't') | |
8135 | { /* crypt */ | |
8136 | return -KEY_crypt; | |
8137 | } | |
8138 | ||
8139 | goto unknown; | |
8140 | ||
8141 | default: | |
8142 | goto unknown; | |
8143 | } | |
8144 | ||
8145 | case 'e': | |
8146 | if (name[1] == 'l' && | |
8147 | name[2] == 's' && | |
8148 | name[3] == 'i' && | |
8149 | name[4] == 'f') | |
8150 | { /* elsif */ | |
8151 | return KEY_elsif; | |
8152 | } | |
8153 | ||
8154 | goto unknown; | |
8155 | ||
8156 | case 'f': | |
8157 | switch (name[1]) | |
8158 | { | |
8159 | case 'c': | |
8160 | if (name[2] == 'n' && | |
8161 | name[3] == 't' && | |
8162 | name[4] == 'l') | |
8163 | { /* fcntl */ | |
8164 | return -KEY_fcntl; | |
8165 | } | |
8166 | ||
8167 | goto unknown; | |
8168 | ||
8169 | case 'l': | |
8170 | if (name[2] == 'o' && | |
8171 | name[3] == 'c' && | |
8172 | name[4] == 'k') | |
8173 | { /* flock */ | |
8174 | return -KEY_flock; | |
8175 | } | |
8176 | ||
8177 | goto unknown; | |
8178 | ||
8179 | default: | |
8180 | goto unknown; | |
8181 | } | |
8182 | ||
0d863452 RH |
8183 | case 'g': |
8184 | if (name[1] == 'i' && | |
8185 | name[2] == 'v' && | |
8186 | name[3] == 'e' && | |
8187 | name[4] == 'n') | |
8188 | { /* given */ | |
5458a98a | 8189 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_given : 0); |
0d863452 RH |
8190 | } |
8191 | ||
8192 | goto unknown; | |
8193 | ||
4c3bbe0f MHM |
8194 | case 'i': |
8195 | switch (name[1]) | |
8196 | { | |
8197 | case 'n': | |
8198 | if (name[2] == 'd' && | |
8199 | name[3] == 'e' && | |
8200 | name[4] == 'x') | |
8201 | { /* index */ | |
8202 | return -KEY_index; | |
8203 | } | |
8204 | ||
8205 | goto unknown; | |
8206 | ||
8207 | case 'o': | |
8208 | if (name[2] == 'c' && | |
8209 | name[3] == 't' && | |
8210 | name[4] == 'l') | |
8211 | { /* ioctl */ | |
8212 | return -KEY_ioctl; | |
8213 | } | |
8214 | ||
8215 | goto unknown; | |
8216 | ||
8217 | default: | |
8218 | goto unknown; | |
8219 | } | |
8220 | ||
8221 | case 'l': | |
8222 | switch (name[1]) | |
8223 | { | |
8224 | case 'o': | |
8225 | if (name[2] == 'c' && | |
8226 | name[3] == 'a' && | |
8227 | name[4] == 'l') | |
8228 | { /* local */ | |
8229 | return KEY_local; | |
8230 | } | |
8231 | ||
8232 | goto unknown; | |
8233 | ||
8234 | case 's': | |
8235 | if (name[2] == 't' && | |
8236 | name[3] == 'a' && | |
8237 | name[4] == 't') | |
8238 | { /* lstat */ | |
8239 | return -KEY_lstat; | |
8240 | } | |
8241 | ||
8242 | goto unknown; | |
8243 | ||
8244 | default: | |
8245 | goto unknown; | |
8246 | } | |
8247 | ||
8248 | case 'm': | |
8249 | if (name[1] == 'k' && | |
8250 | name[2] == 'd' && | |
8251 | name[3] == 'i' && | |
8252 | name[4] == 'r') | |
8253 | { /* mkdir */ | |
8254 | return -KEY_mkdir; | |
8255 | } | |
8256 | ||
8257 | goto unknown; | |
8258 | ||
8259 | case 'p': | |
8260 | if (name[1] == 'r' && | |
8261 | name[2] == 'i' && | |
8262 | name[3] == 'n' && | |
8263 | name[4] == 't') | |
8264 | { /* print */ | |
8265 | return KEY_print; | |
8266 | } | |
8267 | ||
8268 | goto unknown; | |
8269 | ||
8270 | case 'r': | |
8271 | switch (name[1]) | |
8272 | { | |
8273 | case 'e': | |
8274 | if (name[2] == 's' && | |
8275 | name[3] == 'e' && | |
8276 | name[4] == 't') | |
8277 | { /* reset */ | |
8278 | return -KEY_reset; | |
8279 | } | |
8280 | ||
8281 | goto unknown; | |
8282 | ||
8283 | case 'm': | |
8284 | if (name[2] == 'd' && | |
8285 | name[3] == 'i' && | |
8286 | name[4] == 'r') | |
8287 | { /* rmdir */ | |
8288 | return -KEY_rmdir; | |
8289 | } | |
8290 | ||
8291 | goto unknown; | |
8292 | ||
8293 | default: | |
8294 | goto unknown; | |
8295 | } | |
8296 | ||
8297 | case 's': | |
8298 | switch (name[1]) | |
8299 | { | |
8300 | case 'e': | |
8301 | if (name[2] == 'm' && | |
8302 | name[3] == 'o' && | |
8303 | name[4] == 'p') | |
8304 | { /* semop */ | |
8305 | return -KEY_semop; | |
8306 | } | |
8307 | ||
8308 | goto unknown; | |
8309 | ||
8310 | case 'h': | |
8311 | if (name[2] == 'i' && | |
8312 | name[3] == 'f' && | |
8313 | name[4] == 't') | |
8314 | { /* shift */ | |
8315 | return -KEY_shift; | |
8316 | } | |
8317 | ||
8318 | goto unknown; | |
8319 | ||
8320 | case 'l': | |
8321 | if (name[2] == 'e' && | |
8322 | name[3] == 'e' && | |
8323 | name[4] == 'p') | |
8324 | { /* sleep */ | |
8325 | return -KEY_sleep; | |
8326 | } | |
8327 | ||
8328 | goto unknown; | |
8329 | ||
8330 | case 'p': | |
8331 | if (name[2] == 'l' && | |
8332 | name[3] == 'i' && | |
8333 | name[4] == 't') | |
8334 | { /* split */ | |
8335 | return KEY_split; | |
8336 | } | |
8337 | ||
8338 | goto unknown; | |
8339 | ||
8340 | case 'r': | |
8341 | if (name[2] == 'a' && | |
8342 | name[3] == 'n' && | |
8343 | name[4] == 'd') | |
8344 | { /* srand */ | |
8345 | return -KEY_srand; | |
8346 | } | |
8347 | ||
8348 | goto unknown; | |
8349 | ||
8350 | case 't': | |
952306ac RGS |
8351 | switch (name[2]) |
8352 | { | |
8353 | case 'a': | |
8354 | if (name[3] == 't' && | |
8355 | name[4] == 'e') | |
8356 | { /* state */ | |
5458a98a | 8357 | return (all_keywords || FEATURE_IS_ENABLED("state") ? KEY_state : 0); |
952306ac | 8358 | } |
4c3bbe0f | 8359 | |
952306ac RGS |
8360 | goto unknown; |
8361 | ||
8362 | case 'u': | |
8363 | if (name[3] == 'd' && | |
8364 | name[4] == 'y') | |
8365 | { /* study */ | |
8366 | return KEY_study; | |
8367 | } | |
8368 | ||
8369 | goto unknown; | |
8370 | ||
8371 | default: | |
8372 | goto unknown; | |
8373 | } | |
4c3bbe0f MHM |
8374 | |
8375 | default: | |
8376 | goto unknown; | |
8377 | } | |
8378 | ||
8379 | case 't': | |
8380 | if (name[1] == 'i' && | |
8381 | name[2] == 'm' && | |
8382 | name[3] == 'e' && | |
8383 | name[4] == 's') | |
8384 | { /* times */ | |
8385 | return -KEY_times; | |
8386 | } | |
8387 | ||
8388 | goto unknown; | |
8389 | ||
8390 | case 'u': | |
8391 | switch (name[1]) | |
8392 | { | |
8393 | case 'm': | |
8394 | if (name[2] == 'a' && | |
8395 | name[3] == 's' && | |
8396 | name[4] == 'k') | |
8397 | { /* umask */ | |
8398 | return -KEY_umask; | |
8399 | } | |
8400 | ||
8401 | goto unknown; | |
8402 | ||
8403 | case 'n': | |
8404 | switch (name[2]) | |
8405 | { | |
8406 | case 'd': | |
8407 | if (name[3] == 'e' && | |
8408 | name[4] == 'f') | |
8409 | { /* undef */ | |
8410 | return KEY_undef; | |
8411 | } | |
8412 | ||
8413 | goto unknown; | |
8414 | ||
8415 | case 't': | |
8416 | if (name[3] == 'i') | |
8417 | { | |
8418 | switch (name[4]) | |
8419 | { | |
8420 | case 'e': | |
8421 | { /* untie */ | |
8422 | return KEY_untie; | |
8423 | } | |
8424 | ||
4c3bbe0f MHM |
8425 | case 'l': |
8426 | { /* until */ | |
8427 | return KEY_until; | |
8428 | } | |
8429 | ||
4c3bbe0f MHM |
8430 | default: |
8431 | goto unknown; | |
8432 | } | |
8433 | } | |
8434 | ||
8435 | goto unknown; | |
8436 | ||
8437 | default: | |
8438 | goto unknown; | |
8439 | } | |
8440 | ||
8441 | case 't': | |
8442 | if (name[2] == 'i' && | |
8443 | name[3] == 'm' && | |
8444 | name[4] == 'e') | |
8445 | { /* utime */ | |
8446 | return -KEY_utime; | |
8447 | } | |
8448 | ||
8449 | goto unknown; | |
8450 | ||
8451 | default: | |
8452 | goto unknown; | |
8453 | } | |
8454 | ||
8455 | case 'w': | |
8456 | switch (name[1]) | |
8457 | { | |
8458 | case 'h': | |
8459 | if (name[2] == 'i' && | |
8460 | name[3] == 'l' && | |
8461 | name[4] == 'e') | |
8462 | { /* while */ | |
8463 | return KEY_while; | |
8464 | } | |
8465 | ||
8466 | goto unknown; | |
8467 | ||
8468 | case 'r': | |
8469 | if (name[2] == 'i' && | |
8470 | name[3] == 't' && | |
8471 | name[4] == 'e') | |
8472 | { /* write */ | |
8473 | return -KEY_write; | |
8474 | } | |
8475 | ||
8476 | goto unknown; | |
8477 | ||
8478 | default: | |
8479 | goto unknown; | |
8480 | } | |
8481 | ||
8482 | default: | |
8483 | goto unknown; | |
e2e1dd5a | 8484 | } |
4c3bbe0f MHM |
8485 | |
8486 | case 6: /* 33 tokens of length 6 */ | |
8487 | switch (name[0]) | |
8488 | { | |
8489 | case 'a': | |
8490 | if (name[1] == 'c' && | |
8491 | name[2] == 'c' && | |
8492 | name[3] == 'e' && | |
8493 | name[4] == 'p' && | |
8494 | name[5] == 't') | |
8495 | { /* accept */ | |
8496 | return -KEY_accept; | |
8497 | } | |
8498 | ||
8499 | goto unknown; | |
8500 | ||
8501 | case 'c': | |
8502 | switch (name[1]) | |
8503 | { | |
8504 | case 'a': | |
8505 | if (name[2] == 'l' && | |
8506 | name[3] == 'l' && | |
8507 | name[4] == 'e' && | |
8508 | name[5] == 'r') | |
8509 | { /* caller */ | |
8510 | return -KEY_caller; | |
8511 | } | |
8512 | ||
8513 | goto unknown; | |
8514 | ||
8515 | case 'h': | |
8516 | if (name[2] == 'r' && | |
8517 | name[3] == 'o' && | |
8518 | name[4] == 'o' && | |
8519 | name[5] == 't') | |
8520 | { /* chroot */ | |
8521 | return -KEY_chroot; | |
8522 | } | |
8523 | ||
8524 | goto unknown; | |
8525 | ||
8526 | default: | |
8527 | goto unknown; | |
8528 | } | |
8529 | ||
8530 | case 'd': | |
8531 | if (name[1] == 'e' && | |
8532 | name[2] == 'l' && | |
8533 | name[3] == 'e' && | |
8534 | name[4] == 't' && | |
8535 | name[5] == 'e') | |
8536 | { /* delete */ | |
8537 | return KEY_delete; | |
8538 | } | |
8539 | ||
8540 | goto unknown; | |
8541 | ||
8542 | case 'e': | |
8543 | switch (name[1]) | |
8544 | { | |
8545 | case 'l': | |
8546 | if (name[2] == 's' && | |
8547 | name[3] == 'e' && | |
8548 | name[4] == 'i' && | |
8549 | name[5] == 'f') | |
8550 | { /* elseif */ | |
8551 | if(ckWARN_d(WARN_SYNTAX)) | |
8552 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "elseif should be elsif"); | |
8553 | } | |
8554 | ||
8555 | goto unknown; | |
8556 | ||
8557 | case 'x': | |
8558 | if (name[2] == 'i' && | |
8559 | name[3] == 's' && | |
8560 | name[4] == 't' && | |
8561 | name[5] == 's') | |
8562 | { /* exists */ | |
8563 | return KEY_exists; | |
8564 | } | |
8565 | ||
8566 | goto unknown; | |
8567 | ||
8568 | default: | |
8569 | goto unknown; | |
8570 | } | |
8571 | ||
8572 | case 'f': | |
8573 | switch (name[1]) | |
8574 | { | |
8575 | case 'i': | |
8576 | if (name[2] == 'l' && | |
8577 | name[3] == 'e' && | |
8578 | name[4] == 'n' && | |
8579 | name[5] == 'o') | |
8580 | { /* fileno */ | |
8581 | return -KEY_fileno; | |
8582 | } | |
8583 | ||
8584 | goto unknown; | |
8585 | ||
8586 | case 'o': | |
8587 | if (name[2] == 'r' && | |
8588 | name[3] == 'm' && | |
8589 | name[4] == 'a' && | |
8590 | name[5] == 't') | |
8591 | { /* format */ | |
8592 | return KEY_format; | |
8593 | } | |
8594 | ||
8595 | goto unknown; | |
8596 | ||
8597 | default: | |
8598 | goto unknown; | |
8599 | } | |
8600 | ||
8601 | case 'g': | |
8602 | if (name[1] == 'm' && | |
8603 | name[2] == 't' && | |
8604 | name[3] == 'i' && | |
8605 | name[4] == 'm' && | |
8606 | name[5] == 'e') | |
8607 | { /* gmtime */ | |
8608 | return -KEY_gmtime; | |
8609 | } | |
8610 | ||
8611 | goto unknown; | |
8612 | ||
8613 | case 'l': | |
8614 | switch (name[1]) | |
8615 | { | |
8616 | case 'e': | |
8617 | if (name[2] == 'n' && | |
8618 | name[3] == 'g' && | |
8619 | name[4] == 't' && | |
8620 | name[5] == 'h') | |
8621 | { /* length */ | |
8622 | return -KEY_length; | |
8623 | } | |
8624 | ||
8625 | goto unknown; | |
8626 | ||
8627 | case 'i': | |
8628 | if (name[2] == 's' && | |
8629 | name[3] == 't' && | |
8630 | name[4] == 'e' && | |
8631 | name[5] == 'n') | |
8632 | { /* listen */ | |
8633 | return -KEY_listen; | |
8634 | } | |
8635 | ||
8636 | goto unknown; | |
8637 | ||
8638 | default: | |
8639 | goto unknown; | |
8640 | } | |
8641 | ||
8642 | case 'm': | |
8643 | if (name[1] == 's' && | |
8644 | name[2] == 'g') | |
8645 | { | |
8646 | switch (name[3]) | |
8647 | { | |
8648 | case 'c': | |
8649 | if (name[4] == 't' && | |
8650 | name[5] == 'l') | |
8651 | { /* msgctl */ | |
8652 | return -KEY_msgctl; | |
8653 | } | |
8654 | ||
8655 | goto unknown; | |
8656 | ||
8657 | case 'g': | |
8658 | if (name[4] == 'e' && | |
8659 | name[5] == 't') | |
8660 | { /* msgget */ | |
8661 | return -KEY_msgget; | |
8662 | } | |
8663 | ||
8664 | goto unknown; | |
8665 | ||
8666 | case 'r': | |
8667 | if (name[4] == 'c' && | |
8668 | name[5] == 'v') | |
8669 | { /* msgrcv */ | |
8670 | return -KEY_msgrcv; | |
8671 | } | |
8672 | ||
8673 | goto unknown; | |
8674 | ||
8675 | case 's': | |
8676 | if (name[4] == 'n' && | |
8677 | name[5] == 'd') | |
8678 | { /* msgsnd */ | |
8679 | return -KEY_msgsnd; | |
8680 | } | |
8681 | ||
8682 | goto unknown; | |
8683 | ||
8684 | default: | |
8685 | goto unknown; | |
8686 | } | |
8687 | } | |
8688 | ||
8689 | goto unknown; | |
8690 | ||
8691 | case 'p': | |
8692 | if (name[1] == 'r' && | |
8693 | name[2] == 'i' && | |
8694 | name[3] == 'n' && | |
8695 | name[4] == 't' && | |
8696 | name[5] == 'f') | |
8697 | { /* printf */ | |
8698 | return KEY_printf; | |
8699 | } | |
8700 | ||
8701 | goto unknown; | |
8702 | ||
8703 | case 'r': | |
8704 | switch (name[1]) | |
8705 | { | |
8706 | case 'e': | |
8707 | switch (name[2]) | |
8708 | { | |
8709 | case 'n': | |
8710 | if (name[3] == 'a' && | |
8711 | name[4] == 'm' && | |
8712 | name[5] == 'e') | |
8713 | { /* rename */ | |
8714 | return -KEY_rename; | |
8715 | } | |
8716 | ||
8717 | goto unknown; | |
8718 | ||
8719 | case 't': | |
8720 | if (name[3] == 'u' && | |
8721 | name[4] == 'r' && | |
8722 | name[5] == 'n') | |
8723 | { /* return */ | |
8724 | return KEY_return; | |
8725 | } | |
8726 | ||
8727 | goto unknown; | |
8728 | ||
8729 | default: | |
8730 | goto unknown; | |
8731 | } | |
8732 | ||
8733 | case 'i': | |
8734 | if (name[2] == 'n' && | |
8735 | name[3] == 'd' && | |
8736 | name[4] == 'e' && | |
8737 | name[5] == 'x') | |
8738 | { /* rindex */ | |
8739 | return -KEY_rindex; | |
8740 | } | |
8741 | ||
8742 | goto unknown; | |
8743 | ||
8744 | default: | |
8745 | goto unknown; | |
8746 | } | |
8747 | ||
8748 | case 's': | |
8749 | switch (name[1]) | |
8750 | { | |
8751 | case 'c': | |
8752 | if (name[2] == 'a' && | |
8753 | name[3] == 'l' && | |
8754 | name[4] == 'a' && | |
8755 | name[5] == 'r') | |
8756 | { /* scalar */ | |
8757 | return KEY_scalar; | |
8758 | } | |
8759 | ||
8760 | goto unknown; | |
8761 | ||
8762 | case 'e': | |
8763 | switch (name[2]) | |
8764 | { | |
8765 | case 'l': | |
8766 | if (name[3] == 'e' && | |
8767 | name[4] == 'c' && | |
8768 | name[5] == 't') | |
8769 | { /* select */ | |
8770 | return -KEY_select; | |
8771 | } | |
8772 | ||
8773 | goto unknown; | |
8774 | ||
8775 | case 'm': | |
8776 | switch (name[3]) | |
8777 | { | |
8778 | case 'c': | |
8779 | if (name[4] == 't' && | |
8780 | name[5] == 'l') | |
8781 | { /* semctl */ | |
8782 | return -KEY_semctl; | |
8783 | } | |
8784 | ||
8785 | goto unknown; | |
8786 | ||
8787 | case 'g': | |
8788 | if (name[4] == 'e' && | |
8789 | name[5] == 't') | |
8790 | { /* semget */ | |
8791 | return -KEY_semget; | |
8792 | } | |
8793 | ||
8794 | goto unknown; | |
8795 | ||
8796 | default: | |
8797 | goto unknown; | |
8798 | } | |
8799 | ||
8800 | default: | |
8801 | goto unknown; | |
8802 | } | |
8803 | ||
8804 | case 'h': | |
8805 | if (name[2] == 'm') | |
8806 | { | |
8807 | switch (name[3]) | |
8808 | { | |
8809 | case 'c': | |
8810 | if (name[4] == 't' && | |
8811 | name[5] == 'l') | |
8812 | { /* shmctl */ | |
8813 | return -KEY_shmctl; | |
8814 | } | |
8815 | ||
8816 | goto unknown; | |
8817 | ||
8818 | case 'g': | |
8819 | if (name[4] == 'e' && | |
8820 | name[5] == 't') | |
8821 | { /* shmget */ | |
8822 | return -KEY_shmget; | |
8823 | } | |
8824 | ||
8825 | goto unknown; | |
8826 | ||
8827 | default: | |
8828 | goto unknown; | |
8829 | } | |
8830 | } | |
8831 | ||
8832 | goto unknown; | |
8833 | ||
8834 | case 'o': | |
8835 | if (name[2] == 'c' && | |
8836 | name[3] == 'k' && | |
8837 | name[4] == 'e' && | |
8838 | name[5] == 't') | |
8839 | { /* socket */ | |
8840 | return -KEY_socket; | |
8841 | } | |
8842 | ||
8843 | goto unknown; | |
8844 | ||
8845 | case 'p': | |
8846 | if (name[2] == 'l' && | |
8847 | name[3] == 'i' && | |
8848 | name[4] == 'c' && | |
8849 | name[5] == 'e') | |
8850 | { /* splice */ | |
8851 | return -KEY_splice; | |
8852 | } | |
8853 | ||
8854 | goto unknown; | |
8855 | ||
8856 | case 'u': | |
8857 | if (name[2] == 'b' && | |
8858 | name[3] == 's' && | |
8859 | name[4] == 't' && | |
8860 | name[5] == 'r') | |
8861 | { /* substr */ | |
8862 | return -KEY_substr; | |
8863 | } | |
8864 | ||
8865 | goto unknown; | |
8866 | ||
8867 | case 'y': | |
8868 | if (name[2] == 's' && | |
8869 | name[3] == 't' && | |
8870 | name[4] == 'e' && | |
8871 | name[5] == 'm') | |
8872 | { /* system */ | |
8873 | return -KEY_system; | |
8874 | } | |
8875 | ||
8876 | goto unknown; | |
8877 | ||
8878 | default: | |
8879 | goto unknown; | |
8880 | } | |
8881 | ||
8882 | case 'u': | |
8883 | if (name[1] == 'n') | |
8884 | { | |
8885 | switch (name[2]) | |
8886 | { | |
8887 | case 'l': | |
8888 | switch (name[3]) | |
8889 | { | |
8890 | case 'e': | |
8891 | if (name[4] == 's' && | |
8892 | name[5] == 's') | |
8893 | { /* unless */ | |
8894 | return KEY_unless; | |
8895 | } | |
8896 | ||
8897 | goto unknown; | |
8898 | ||
8899 | case 'i': | |
8900 | if (name[4] == 'n' && | |
8901 | name[5] == 'k') | |
8902 | { /* unlink */ | |
8903 | return -KEY_unlink; | |
8904 | } | |
8905 | ||
8906 | goto unknown; | |
8907 | ||
8908 | default: | |
8909 | goto unknown; | |
8910 | } | |
8911 | ||
8912 | case 'p': | |
8913 | if (name[3] == 'a' && | |
8914 | name[4] == 'c' && | |
8915 | name[5] == 'k') | |
8916 | { /* unpack */ | |
8917 | return -KEY_unpack; | |
8918 | } | |
8919 | ||
8920 | goto unknown; | |
8921 | ||
8922 | default: | |
8923 | goto unknown; | |
8924 | } | |
8925 | } | |
8926 | ||
8927 | goto unknown; | |
8928 | ||
8929 | case 'v': | |
8930 | if (name[1] == 'a' && | |
8931 | name[2] == 'l' && | |
8932 | name[3] == 'u' && | |
8933 | name[4] == 'e' && | |
8934 | name[5] == 's') | |
8935 | { /* values */ | |
8936 | return -KEY_values; | |
8937 | } | |
8938 | ||
8939 | goto unknown; | |
8940 | ||
8941 | default: | |
8942 | goto unknown; | |
e2e1dd5a | 8943 | } |
4c3bbe0f | 8944 | |
0d863452 | 8945 | case 7: /* 29 tokens of length 7 */ |
4c3bbe0f MHM |
8946 | switch (name[0]) |
8947 | { | |
8948 | case 'D': | |
8949 | if (name[1] == 'E' && | |
8950 | name[2] == 'S' && | |
8951 | name[3] == 'T' && | |
8952 | name[4] == 'R' && | |
8953 | name[5] == 'O' && | |
8954 | name[6] == 'Y') | |
8955 | { /* DESTROY */ | |
8956 | return KEY_DESTROY; | |
8957 | } | |
8958 | ||
8959 | goto unknown; | |
8960 | ||
8961 | case '_': | |
8962 | if (name[1] == '_' && | |
8963 | name[2] == 'E' && | |
8964 | name[3] == 'N' && | |
8965 | name[4] == 'D' && | |
8966 | name[5] == '_' && | |
8967 | name[6] == '_') | |
8968 | { /* __END__ */ | |
8969 | return KEY___END__; | |
8970 | } | |
8971 | ||
8972 | goto unknown; | |
8973 | ||
8974 | case 'b': | |
8975 | if (name[1] == 'i' && | |
8976 | name[2] == 'n' && | |
8977 | name[3] == 'm' && | |
8978 | name[4] == 'o' && | |
8979 | name[5] == 'd' && | |
8980 | name[6] == 'e') | |
8981 | { /* binmode */ | |
8982 | return -KEY_binmode; | |
8983 | } | |
8984 | ||
8985 | goto unknown; | |
8986 | ||
8987 | case 'c': | |
8988 | if (name[1] == 'o' && | |
8989 | name[2] == 'n' && | |
8990 | name[3] == 'n' && | |
8991 | name[4] == 'e' && | |
8992 | name[5] == 'c' && | |
8993 | name[6] == 't') | |
8994 | { /* connect */ | |
8995 | return -KEY_connect; | |
8996 | } | |
8997 | ||
8998 | goto unknown; | |
8999 | ||
9000 | case 'd': | |
9001 | switch (name[1]) | |
9002 | { | |
9003 | case 'b': | |
9004 | if (name[2] == 'm' && | |
9005 | name[3] == 'o' && | |
9006 | name[4] == 'p' && | |
9007 | name[5] == 'e' && | |
9008 | name[6] == 'n') | |
9009 | { /* dbmopen */ | |
9010 | return -KEY_dbmopen; | |
9011 | } | |
9012 | ||
9013 | goto unknown; | |
9014 | ||
9015 | case 'e': | |
0d863452 RH |
9016 | if (name[2] == 'f') |
9017 | { | |
9018 | switch (name[3]) | |
9019 | { | |
9020 | case 'a': | |
9021 | if (name[4] == 'u' && | |
9022 | name[5] == 'l' && | |
9023 | name[6] == 't') | |
9024 | { /* default */ | |
5458a98a | 9025 | return (all_keywords || FEATURE_IS_ENABLED("switch") ? KEY_default : 0); |
0d863452 RH |
9026 | } |
9027 | ||
9028 | goto unknown; | |
9029 | ||
9030 | case 'i': | |
9031 | if (name[4] == 'n' && | |
952306ac RGS |
9032 | name[5] == 'e' && |
9033 | name[6] == 'd') | |
9034 | { /* defined */ | |
9035 | return KEY_defined; | |
9036 | } | |
4c3bbe0f | 9037 | |
952306ac | 9038 | goto unknown; |
4c3bbe0f | 9039 | |
952306ac RGS |
9040 | default: |
9041 | goto unknown; | |
9042 | } | |
0d863452 RH |
9043 | } |
9044 | ||
9045 | goto unknown; | |
9046 | ||
9047 | default: | |
9048 | goto unknown; | |
9049 | } | |
4c3bbe0f MHM |
9050 | |
9051 | case 'f': | |
9052 | if (name[1] == 'o' && | |
9053 | name[2] == 'r' && | |
9054 | name[3] == 'e' && | |
9055 | name[4] == 'a' && | |
9056 | name[5] == 'c' && | |
9057 | name[6] == 'h') | |
9058 | { /* foreach */ | |
9059 | return KEY_foreach; | |
9060 | } | |
9061 | ||
9062 | goto unknown; | |
9063 | ||
9064 | case 'g': | |
9065 | if (name[1] == 'e' && | |
9066 | name[2] == 't' && | |
9067 | name[3] == 'p') | |
9068 | { | |
9069 | switch (name[4]) | |
9070 | { | |
9071 | case 'g': | |
9072 | if (name[5] == 'r' && | |
9073 | name[6] == 'p') | |
9074 | { /* getpgrp */ | |
9075 | return -KEY_getpgrp; | |
9076 | } | |
9077 | ||
9078 | goto unknown; | |
9079 | ||
9080 | case 'p': | |
9081 | if (name[5] == 'i' && | |
9082 | name[6] == 'd') | |
9083 | { /* getppid */ | |
9084 | return -KEY_getppid; | |
9085 | } | |
9086 | ||
9087 | goto unknown; | |
9088 | ||
9089 | default: | |
9090 | goto unknown; | |
9091 | } | |
9092 | } | |
9093 | ||
9094 | goto unknown; | |
9095 | ||
9096 | case 'l': | |
9097 | if (name[1] == 'c' && | |
9098 | name[2] == 'f' && | |
9099 | name[3] == 'i' && | |
9100 | name[4] == 'r' && | |
9101 | name[5] == 's' && | |
9102 | name[6] == 't') | |
9103 | { /* lcfirst */ | |
9104 | return -KEY_lcfirst; | |
9105 | } | |
9106 | ||
9107 | goto unknown; | |
9108 | ||
9109 | case 'o': | |
9110 | if (name[1] == 'p' && | |
9111 | name[2] == 'e' && | |
9112 | name[3] == 'n' && | |
9113 | name[4] == 'd' && | |
9114 | name[5] == 'i' && | |
9115 | name[6] == 'r') | |
9116 | { /* opendir */ | |
9117 | return -KEY_opendir; | |
9118 | } | |
9119 | ||
9120 | goto unknown; | |
9121 | ||
9122 | case 'p': | |
9123 | if (name[1] == 'a' && | |
9124 | name[2] == 'c' && | |
9125 | name[3] == 'k' && | |
9126 | name[4] == 'a' && | |
9127 | name[5] == 'g' && | |
9128 | name[6] == 'e') | |
9129 | { /* package */ | |
9130 | return KEY_package; | |
9131 | } | |
9132 | ||
9133 | goto unknown; | |
9134 | ||
9135 | case 'r': | |
9136 | if (name[1] == 'e') | |
9137 | { | |
9138 | switch (name[2]) | |
9139 | { | |
9140 | case 'a': | |
9141 | if (name[3] == 'd' && | |
9142 | name[4] == 'd' && | |
9143 | name[5] == 'i' && | |
9144 | name[6] == 'r') | |
9145 | { /* readdir */ | |
9146 | return -KEY_readdir; | |
9147 | } | |
9148 | ||
9149 | goto unknown; | |
9150 | ||
9151 | case 'q': | |
9152 | if (name[3] == 'u' && | |
9153 | name[4] == 'i' && | |
9154 | name[5] == 'r' && | |
9155 | name[6] == 'e') | |
9156 | { /* require */ | |
9157 | return KEY_require; | |
9158 | } | |
9159 | ||
9160 | goto unknown; | |
9161 | ||
9162 | case 'v': | |
9163 | if (name[3] == 'e' && | |
9164 | name[4] == 'r' && | |
9165 | name[5] == 's' && | |
9166 | name[6] == 'e') | |
9167 | { /* reverse */ | |
9168 | return -KEY_reverse; | |
9169 | } | |
9170 | ||
9171 | goto unknown; | |
9172 | ||
9173 | default: | |
9174 | goto unknown; | |
9175 | } | |
9176 | } | |
9177 | ||
9178 | goto unknown; | |
9179 | ||
9180 | case 's': | |
9181 | switch (name[1]) | |
9182 | { | |
9183 | case 'e': | |
9184 | switch (name[2]) | |
9185 | { | |
9186 | case 'e': | |
9187 | if (name[3] == 'k' && | |
9188 | name[4] == 'd' && | |
9189 | name[5] == 'i' && | |
9190 | name[6] == 'r') | |
9191 | { /* seekdir */ | |
9192 | return -KEY_seekdir; | |
9193 | } | |
9194 | ||
9195 | goto unknown; | |
9196 | ||
9197 | case 't': | |
9198 | if (name[3] == 'p' && | |
9199 | name[4] == 'g' && | |
9200 | name[5] == 'r' && | |
9201 | name[6] == 'p') | |
9202 | { /* setpgrp */ | |
9203 | return -KEY_setpgrp; | |
9204 | } | |
9205 | ||
9206 | goto unknown; | |
9207 | ||
9208 | default: | |
9209 | goto unknown; | |
9210 | } | |
9211 | ||
9212 | case 'h': | |
9213 | if (name[2] == 'm' && | |
9214 | name[3] == 'r' && | |
9215 | name[4] == 'e' && | |
9216 | name[5] == 'a' && | |
9217 | name[6] == 'd') | |
9218 | { /* shmread */ | |
9219 | return -KEY_shmread; | |
9220 | } | |
9221 | ||
9222 | goto unknown; | |
9223 | ||
9224 | case 'p': | |
9225 | if (name[2] == 'r' && | |
9226 | name[3] == 'i' && | |
9227 | name[4] == 'n' && | |
9228 | name[5] == 't' && | |
9229 | name[6] == 'f') | |
9230 | { /* sprintf */ | |
9231 | return -KEY_sprintf; | |
9232 | } | |
9233 | ||
9234 | goto unknown; | |
9235 | ||
9236 | case 'y': | |
9237 | switch (name[2]) | |
9238 | { | |
9239 | case 'm': | |
9240 | if (name[3] == 'l' && | |
9241 | name[4] == 'i' && | |
9242 | name[5] == 'n' && | |
9243 | name[6] == 'k') | |
9244 | { /* symlink */ | |
9245 | return -KEY_symlink; | |
9246 | } | |
9247 | ||
9248 | goto unknown; | |
9249 | ||
9250 | case 's': | |
9251 | switch (name[3]) | |
9252 | { | |
9253 | case 'c': | |
9254 | if (name[4] == 'a' && | |
9255 | name[5] == 'l' && | |
9256 | name[6] == 'l') | |
9257 | { /* syscall */ | |
9258 | return -KEY_syscall; | |
9259 | } | |
9260 | ||
9261 | goto unknown; | |
9262 | ||
9263 | case 'o': | |
9264 | if (name[4] == 'p' && | |
9265 | name[5] == 'e' && | |
9266 | name[6] == 'n') | |
9267 | { /* sysopen */ | |
9268 | return -KEY_sysopen; | |
9269 | } | |
9270 | ||
9271 | goto unknown; | |
9272 | ||
9273 | case 'r': | |
9274 | if (name[4] == 'e' && | |
9275 | name[5] == 'a' && | |
9276 | name[6] == 'd') | |
9277 | { /* sysread */ | |
9278 | return -KEY_sysread; | |
9279 | } | |
9280 | ||
9281 | goto unknown; | |
9282 | ||
9283 | case 's': | |
9284 | if (name[4] == 'e' && | |
9285 | name[5] == 'e' && | |
9286 | name[6] == 'k') | |
9287 | { /* sysseek */ | |
9288 | return -KEY_sysseek; | |
9289 | } | |
9290 | ||
9291 | goto unknown; | |
9292 | ||
9293 | default: | |
9294 | goto unknown; | |
9295 | } | |
9296 | ||
9297 | default: | |
9298 | goto unknown; | |
9299 | } | |
9300 | ||
9301 | default: | |
9302 | goto unknown; | |
9303 | } | |
9304 | ||
9305 | case 't': | |
9306 | if (name[1] == 'e' && | |
9307 | name[2] == 'l' && | |
9308 | name[3] == 'l' && | |
9309 | name[4] == 'd' && | |
9310 | name[5] == 'i' && | |
9311 | name[6] == 'r') | |
9312 | { /* telldir */ | |
9313 | return -KEY_telldir; | |
9314 | } | |
9315 | ||
9316 | goto unknown; | |
9317 | ||
9318 | case 'u': | |
9319 | switch (name[1]) | |
9320 | { | |
9321 | case 'c': | |
9322 | if (name[2] == 'f' && | |
9323 | name[3] == 'i' && | |
9324 | name[4] == 'r' && | |
9325 | name[5] == 's' && | |
9326 | name[6] == 't') | |
9327 | { /* ucfirst */ | |
9328 | return -KEY_ucfirst; | |
9329 | } | |
9330 | ||
9331 | goto unknown; | |
9332 | ||
9333 | case 'n': | |
9334 | if (name[2] == 's' && | |
9335 | name[3] == 'h' && | |
9336 | name[4] == 'i' && | |
9337 | name[5] == 'f' && | |
9338 | name[6] == 't') | |
9339 | { /* unshift */ | |
9340 | return -KEY_unshift; | |
9341 | } | |
9342 | ||
9343 | goto unknown; | |
9344 | ||
9345 | default: | |
9346 | goto unknown; | |
9347 | } | |
9348 | ||
9349 | case 'w': | |
9350 | if (name[1] == 'a' && | |
9351 | name[2] == 'i' && | |
9352 | name[3] == 't' && | |
9353 | name[4] == 'p' && | |
9354 | name[5] == 'i' && | |
9355 | name[6] == 'd') | |
9356 | { /* waitpid */ | |
9357 | return -KEY_waitpid; | |
9358 | } | |
9359 | ||
9360 | goto unknown; | |
9361 | ||
9362 | default: | |
9363 | goto unknown; | |
9364 | } | |
9365 | ||
9366 | case 8: /* 26 tokens of length 8 */ | |
9367 | switch (name[0]) | |
9368 | { | |
9369 | case 'A': | |
9370 | if (name[1] == 'U' && | |
9371 | name[2] == 'T' && | |
9372 | name[3] == 'O' && | |
9373 | name[4] == 'L' && | |
9374 | name[5] == 'O' && | |
9375 | name[6] == 'A' && | |
9376 | name[7] == 'D') | |
9377 | { /* AUTOLOAD */ | |
9378 | return KEY_AUTOLOAD; | |
9379 | } | |
9380 | ||
9381 | goto unknown; | |
9382 | ||
9383 | case '_': | |
9384 | if (name[1] == '_') | |
9385 | { | |
9386 | switch (name[2]) | |
9387 | { | |
9388 | case 'D': | |
9389 | if (name[3] == 'A' && | |
9390 | name[4] == 'T' && | |
9391 | name[5] == 'A' && | |
9392 | name[6] == '_' && | |
9393 | name[7] == '_') | |
9394 | { /* __DATA__ */ | |
9395 | return KEY___DATA__; | |
9396 | } | |
9397 | ||
9398 | goto unknown; | |
9399 | ||
9400 | case 'F': | |
9401 | if (name[3] == 'I' && | |
9402 | name[4] == 'L' && | |
9403 | name[5] == 'E' && | |
9404 | name[6] == '_' && | |
9405 | name[7] == '_') | |
9406 | { /* __FILE__ */ | |
9407 | return -KEY___FILE__; | |
9408 | } | |
9409 | ||
9410 | goto unknown; | |
9411 | ||
9412 | case 'L': | |
9413 | if (name[3] == 'I' && | |
9414 | name[4] == 'N' && | |
9415 | name[5] == 'E' && | |
9416 | name[6] == '_' && | |
9417 | name[7] == '_') | |
9418 | { /* __LINE__ */ | |
9419 | return -KEY___LINE__; | |
9420 | } | |
9421 | ||
9422 | goto unknown; | |
9423 | ||
9424 | default: | |
9425 | goto unknown; | |
9426 | } | |
9427 | } | |
9428 | ||
9429 | goto unknown; | |
9430 | ||
9431 | case 'c': | |
9432 | switch (name[1]) | |
9433 | { | |
9434 | case 'l': | |
9435 | if (name[2] == 'o' && | |
9436 | name[3] == 's' && | |
9437 | name[4] == 'e' && | |
9438 | name[5] == 'd' && | |
9439 | name[6] == 'i' && | |
9440 | name[7] == 'r') | |
9441 | { /* closedir */ | |
9442 | return -KEY_closedir; | |
9443 | } | |
9444 | ||
9445 | goto unknown; | |
9446 | ||
9447 | case 'o': | |
9448 | if (name[2] == 'n' && | |
9449 | name[3] == 't' && | |
9450 | name[4] == 'i' && | |
9451 | name[5] == 'n' && | |
9452 | name[6] == 'u' && | |
9453 | name[7] == 'e') | |
9454 | { /* continue */ | |
9455 | return -KEY_continue; | |
9456 | } | |
9457 | ||
9458 | goto unknown; | |
9459 | ||
9460 | default: | |
9461 | goto unknown; | |
9462 | } | |
9463 | ||
9464 | case 'd': | |
9465 | if (name[1] == 'b' && | |
9466 | name[2] == 'm' && | |
9467 | name[3] == 'c' && | |
9468 | name[4] == 'l' && | |
9469 | name[5] == 'o' && | |
9470 | name[6] == 's' && | |
9471 | name[7] == 'e') | |
9472 | { /* dbmclose */ | |
9473 | return -KEY_dbmclose; | |
9474 | } | |
9475 | ||
9476 | goto unknown; | |
9477 | ||
9478 | case 'e': | |
9479 | if (name[1] == 'n' && | |
9480 | name[2] == 'd') | |
9481 | { | |
9482 | switch (name[3]) | |
9483 | { | |
9484 | case 'g': | |
9485 | if (name[4] == 'r' && | |
9486 | name[5] == 'e' && | |
9487 | name[6] == 'n' && | |
9488 | name[7] == 't') | |
9489 | { /* endgrent */ | |
9490 | return -KEY_endgrent; | |
9491 | } | |
9492 | ||
9493 | goto unknown; | |
9494 | ||
9495 | case 'p': | |
9496 | if (name[4] == 'w' && | |
9497 | name[5] == 'e' && | |
9498 | name[6] == 'n' && | |
9499 | name[7] == 't') | |
9500 | { /* endpwent */ | |
9501 | return -KEY_endpwent; | |
9502 | } | |
9503 | ||
9504 | goto unknown; | |
9505 | ||
9506 | default: | |
9507 | goto unknown; | |
9508 | } | |
9509 | } | |
9510 | ||
9511 | goto unknown; | |
9512 | ||
9513 | case 'f': | |
9514 | if (name[1] == 'o' && | |
9515 | name[2] == 'r' && | |
9516 | name[3] == 'm' && | |
9517 | name[4] == 'l' && | |
9518 | name[5] == 'i' && | |
9519 | name[6] == 'n' && | |
9520 | name[7] == 'e') | |
9521 | { /* formline */ | |
9522 | return -KEY_formline; | |
9523 | } | |
9524 | ||
9525 | goto unknown; | |
9526 | ||
9527 | case 'g': | |
9528 | if (name[1] == 'e' && | |
9529 | name[2] == 't') | |
9530 | { | |
9531 | switch (name[3]) | |
9532 | { | |
9533 | case 'g': | |
9534 | if (name[4] == 'r') | |
9535 | { | |
9536 | switch (name[5]) | |
9537 | { | |
9538 | case 'e': | |
9539 | if (name[6] == 'n' && | |
9540 | name[7] == 't') | |
9541 | { /* getgrent */ | |
9542 | return -KEY_getgrent; | |
9543 | } | |
9544 | ||
9545 | goto unknown; | |
9546 | ||
9547 | case 'g': | |
9548 | if (name[6] == 'i' && | |
9549 | name[7] == 'd') | |
9550 | { /* getgrgid */ | |
9551 | return -KEY_getgrgid; | |
9552 | } | |
9553 | ||
9554 | goto unknown; | |
9555 | ||
9556 | case 'n': | |
9557 | if (name[6] == 'a' && | |
9558 | name[7] == 'm') | |
9559 | { /* getgrnam */ | |
9560 | return -KEY_getgrnam; | |
9561 | } | |
9562 | ||
9563 | goto unknown; | |
9564 | ||
9565 | default: | |
9566 | goto unknown; | |
9567 | } | |
9568 | } | |
9569 | ||
9570 | goto unknown; | |
9571 | ||
9572 | case 'l': | |
9573 | if (name[4] == 'o' && | |
9574 | name[5] == 'g' && | |
9575 | name[6] == 'i' && | |
9576 | name[7] == 'n') | |
9577 | { /* getlogin */ | |
9578 | return -KEY_getlogin; | |
9579 | } | |
9580 | ||
9581 | goto unknown; | |
9582 | ||
9583 | case 'p': | |
9584 | if (name[4] == 'w') | |
9585 | { | |
9586 | switch (name[5]) | |
9587 | { | |
9588 | case 'e': | |
9589 | if (name[6] == 'n' && | |
9590 | name[7] == 't') | |
9591 | { /* getpwent */ | |
9592 | return -KEY_getpwent; | |
9593 | } | |
9594 | ||
9595 | goto unknown; | |
9596 | ||
9597 | case 'n': | |
9598 | if (name[6] == 'a' && | |
9599 | name[7] == 'm') | |
9600 | { /* getpwnam */ | |
9601 | return -KEY_getpwnam; | |
9602 | } | |
9603 | ||
9604 | goto unknown; | |
9605 | ||
9606 | case 'u': | |
9607 | if (name[6] == 'i' && | |
9608 | name[7] == 'd') | |
9609 | { /* getpwuid */ | |
9610 | return -KEY_getpwuid; | |
9611 | } | |
9612 | ||
9613 | goto unknown; | |
9614 | ||
9615 | default: | |
9616 | goto unknown; | |
9617 | } | |
9618 | } | |
9619 | ||
9620 | goto unknown; | |
9621 | ||
9622 | default: | |
9623 | goto unknown; | |
9624 | } | |
9625 | } | |
9626 | ||
9627 | goto unknown; | |
9628 | ||
9629 | case 'r': | |
9630 | if (name[1] == 'e' && | |
9631 | name[2] == 'a' && | |
9632 | name[3] == 'd') | |
9633 | { | |
9634 | switch (name[4]) | |
9635 | { | |
9636 | case 'l': | |
9637 | if (name[5] == 'i' && | |
9638 | name[6] == 'n') | |
9639 | { | |
9640 | switch (name[7]) | |
9641 | { | |
9642 | case 'e': | |
9643 | { /* readline */ | |
9644 | return -KEY_readline; | |
9645 | } | |
9646 | ||
4c3bbe0f MHM |
9647 | case 'k': |
9648 | { /* readlink */ | |
9649 | return -KEY_readlink; | |
9650 | } | |
9651 | ||
4c3bbe0f MHM |
9652 | default: |
9653 | goto unknown; | |
9654 | } | |
9655 | } | |
9656 | ||
9657 | goto unknown; | |
9658 | ||
9659 | case 'p': | |
9660 | if (name[5] == 'i' && | |
9661 | name[6] == 'p' && | |
9662 | name[7] == 'e') | |
9663 | { /* readpipe */ | |
9664 | return -KEY_readpipe; | |
9665 | } | |
9666 | ||
9667 | goto unknown; | |
9668 | ||
9669 | default: | |
9670 | goto unknown; | |
9671 | } | |
9672 | } | |
9673 | ||
9674 | goto unknown; | |
9675 | ||
9676 | case 's': | |
9677 | switch (name[1]) | |
9678 | { | |
9679 | case 'e': | |
9680 | if (name[2] == 't') | |
9681 | { | |
9682 | switch (name[3]) | |
9683 | { | |
9684 | case 'g': | |
9685 | if (name[4] == 'r' && | |
9686 | name[5] == 'e' && | |
9687 | name[6] == 'n' && | |
9688 | name[7] == 't') | |
9689 | { /* setgrent */ | |
9690 | return -KEY_setgrent; | |
9691 | } | |
9692 | ||
9693 | goto unknown; | |
9694 | ||
9695 | case 'p': | |
9696 | if (name[4] == 'w' && | |
9697 | name[5] == 'e' && | |
9698 | name[6] == 'n' && | |
9699 | name[7] == 't') | |
9700 | { /* setpwent */ | |
9701 | return -KEY_setpwent; | |
9702 | } | |
9703 | ||
9704 | goto unknown; | |
9705 | ||
9706 | default: | |
9707 | goto unknown; | |
9708 | } | |
9709 | } | |
9710 | ||
9711 | goto unknown; | |
9712 | ||
9713 | case 'h': | |
9714 | switch (name[2]) | |
9715 | { | |
9716 | case 'm': | |
9717 | if (name[3] == 'w' && | |
9718 | name[4] == 'r' && | |
9719 | name[5] == 'i' && | |
9720 | name[6] == 't' && | |
9721 | name[7] == 'e') | |
9722 | { /* shmwrite */ | |
9723 | return -KEY_shmwrite; | |
9724 | } | |
9725 | ||
9726 | goto unknown; | |
9727 | ||
9728 | case 'u': | |
9729 | if (name[3] == 't' && | |
9730 | name[4] == 'd' && | |
9731 | name[5] == 'o' && | |
9732 | name[6] == 'w' && | |
9733 | name[7] == 'n') | |
9734 | { /* shutdown */ | |
9735 | return -KEY_shutdown; | |
9736 | } | |
9737 | ||
9738 | goto unknown; | |
9739 | ||
9740 | default: | |
9741 | goto unknown; | |
9742 | } | |
9743 | ||
9744 | case 'y': | |
9745 | if (name[2] == 's' && | |
9746 | name[3] == 'w' && | |
9747 | name[4] == 'r' && | |
9748 | name[5] == 'i' && | |
9749 | name[6] == 't' && | |
9750 | name[7] == 'e') | |
9751 | { /* syswrite */ | |
9752 | return -KEY_syswrite; | |
9753 | } | |
9754 | ||
9755 | goto unknown; | |
9756 | ||
9757 | default: | |
9758 | goto unknown; | |
9759 | } | |
9760 | ||
9761 | case 't': | |
9762 | if (name[1] == 'r' && | |
9763 | name[2] == 'u' && | |
9764 | name[3] == 'n' && | |
9765 | name[4] == 'c' && | |
9766 | name[5] == 'a' && | |
9767 | name[6] == 't' && | |
9768 | name[7] == 'e') | |
9769 | { /* truncate */ | |
9770 | return -KEY_truncate; | |
9771 | } | |
9772 | ||
9773 | goto unknown; | |
9774 | ||
9775 | default: | |
9776 | goto unknown; | |
9777 | } | |
9778 | ||
3c10abe3 | 9779 | case 9: /* 9 tokens of length 9 */ |
4c3bbe0f MHM |
9780 | switch (name[0]) |
9781 | { | |
3c10abe3 AG |
9782 | case 'U': |
9783 | if (name[1] == 'N' && | |
9784 | name[2] == 'I' && | |
9785 | name[3] == 'T' && | |
9786 | name[4] == 'C' && | |
9787 | name[5] == 'H' && | |
9788 | name[6] == 'E' && | |
9789 | name[7] == 'C' && | |
9790 | name[8] == 'K') | |
9791 | { /* UNITCHECK */ | |
9792 | return KEY_UNITCHECK; | |
9793 | } | |
9794 | ||
9795 | goto unknown; | |
9796 | ||
4c3bbe0f MHM |
9797 | case 'e': |
9798 | if (name[1] == 'n' && | |
9799 | name[2] == 'd' && | |
9800 | name[3] == 'n' && | |
9801 | name[4] == 'e' && | |
9802 | name[5] == 't' && | |
9803 | name[6] == 'e' && | |
9804 | name[7] == 'n' && | |
9805 | name[8] == 't') | |
9806 | { /* endnetent */ | |
9807 | return -KEY_endnetent; | |
9808 | } | |
9809 | ||
9810 | goto unknown; | |
9811 | ||
9812 | case 'g': | |
9813 | if (name[1] == 'e' && | |
9814 | name[2] == 't' && | |
9815 | name[3] == 'n' && | |
9816 | name[4] == 'e' && | |
9817 | name[5] == 't' && | |
9818 | name[6] == 'e' && | |
9819 | name[7] == 'n' && | |
9820 | name[8] == 't') | |
9821 | { /* getnetent */ | |
9822 | return -KEY_getnetent; | |
9823 | } | |
9824 | ||
9825 | goto unknown; | |
9826 | ||
9827 | case 'l': | |
9828 | if (name[1] == 'o' && | |
9829 | name[2] == 'c' && | |
9830 | name[3] == 'a' && | |
9831 | name[4] == 'l' && | |
9832 | name[5] == 't' && | |
9833 | name[6] == 'i' && | |
9834 | name[7] == 'm' && | |
9835 | name[8] == 'e') | |
9836 | { /* localtime */ | |
9837 | return -KEY_localtime; | |
9838 | } | |
9839 | ||
9840 | goto unknown; | |
9841 | ||
9842 | case 'p': | |
9843 | if (name[1] == 'r' && | |
9844 | name[2] == 'o' && | |
9845 | name[3] == 't' && | |
9846 | name[4] == 'o' && | |
9847 | name[5] == 't' && | |
9848 | name[6] == 'y' && | |
9849 | name[7] == 'p' && | |
9850 | name[8] == 'e') | |
9851 | { /* prototype */ | |
9852 | return KEY_prototype; | |
9853 | } | |
9854 | ||
9855 | goto unknown; | |
9856 | ||
9857 | case 'q': | |
9858 | if (name[1] == 'u' && | |
9859 | name[2] == 'o' && | |
9860 | name[3] == 't' && | |
9861 | name[4] == 'e' && | |
9862 | name[5] == 'm' && | |
9863 | name[6] == 'e' && | |
9864 | name[7] == 't' && | |
9865 | name[8] == 'a') | |
9866 | { /* quotemeta */ | |
9867 | return -KEY_quotemeta; | |
9868 | } | |
9869 | ||
9870 | goto unknown; | |
9871 | ||
9872 | case 'r': | |
9873 | if (name[1] == 'e' && | |
9874 | name[2] == 'w' && | |
9875 | name[3] == 'i' && | |
9876 | name[4] == 'n' && | |
9877 | name[5] == 'd' && | |
9878 | name[6] == 'd' && | |
9879 | name[7] == 'i' && | |
9880 | name[8] == 'r') | |
9881 | { /* rewinddir */ | |
9882 | return -KEY_rewinddir; | |
9883 | } | |
9884 | ||
9885 | goto unknown; | |
9886 | ||
9887 | case 's': | |
9888 | if (name[1] == 'e' && | |
9889 | name[2] == 't' && | |
9890 | name[3] == 'n' && | |
9891 | name[4] == 'e' && | |
9892 | name[5] == 't' && | |
9893 | name[6] == 'e' && | |
9894 | name[7] == 'n' && | |
9895 | name[8] == 't') | |
9896 | { /* setnetent */ | |
9897 | return -KEY_setnetent; | |
9898 | } | |
9899 | ||
9900 | goto unknown; | |
9901 | ||
9902 | case 'w': | |
9903 | if (name[1] == 'a' && | |
9904 | name[2] == 'n' && | |
9905 | name[3] == 't' && | |
9906 | name[4] == 'a' && | |
9907 | name[5] == 'r' && | |
9908 | name[6] == 'r' && | |
9909 | name[7] == 'a' && | |
9910 | name[8] == 'y') | |
9911 | { /* wantarray */ | |
9912 | return -KEY_wantarray; | |
9913 | } | |
9914 | ||
9915 | goto unknown; | |
9916 | ||
9917 | default: | |
9918 | goto unknown; | |
9919 | } | |
9920 | ||
9921 | case 10: /* 9 tokens of length 10 */ | |
9922 | switch (name[0]) | |
9923 | { | |
9924 | case 'e': | |
9925 | if (name[1] == 'n' && | |
9926 | name[2] == 'd') | |
9927 | { | |
9928 | switch (name[3]) | |
9929 | { | |
9930 | case 'h': | |
9931 | if (name[4] == 'o' && | |
9932 | name[5] == 's' && | |
9933 | name[6] == 't' && | |
9934 | name[7] == 'e' && | |
9935 | name[8] == 'n' && | |
9936 | name[9] == 't') | |
9937 | { /* endhostent */ | |
9938 | return -KEY_endhostent; | |
9939 | } | |
9940 | ||
9941 | goto unknown; | |
9942 | ||
9943 | case 's': | |
9944 | if (name[4] == 'e' && | |
9945 | name[5] == 'r' && | |
9946 | name[6] == 'v' && | |
9947 | name[7] == 'e' && | |
9948 | name[8] == 'n' && | |
9949 | name[9] == 't') | |
9950 | { /* endservent */ | |
9951 | return -KEY_endservent; | |
9952 | } | |
9953 | ||
9954 | goto unknown; | |
9955 | ||
9956 | default: | |
9957 | goto unknown; | |
9958 | } | |
9959 | } | |
9960 | ||
9961 | goto unknown; | |
9962 | ||
9963 | case 'g': | |
9964 | if (name[1] == 'e' && | |
9965 | name[2] == 't') | |
9966 | { | |
9967 | switch (name[3]) | |
9968 | { | |
9969 | case 'h': | |
9970 | if (name[4] == 'o' && | |
9971 | name[5] == 's' && | |
9972 | name[6] == 't' && | |
9973 | name[7] == 'e' && | |
9974 | name[8] == 'n' && | |
9975 | name[9] == 't') | |
9976 | { /* gethostent */ | |
9977 | return -KEY_gethostent; | |
9978 | } | |
9979 | ||
9980 | goto unknown; | |
9981 | ||
9982 | case 's': | |
9983 | switch (name[4]) | |
9984 | { | |
9985 | case 'e': | |
9986 | if (name[5] == 'r' && | |
9987 | name[6] == 'v' && | |
9988 | name[7] == 'e' && | |
9989 | name[8] == 'n' && | |
9990 | name[9] == 't') | |
9991 | { /* getservent */ | |
9992 | return -KEY_getservent; | |
9993 | } | |
9994 | ||
9995 | goto unknown; | |
9996 | ||
9997 | case 'o': | |
9998 | if (name[5] == 'c' && | |
9999 | name[6] == 'k' && | |
10000 | name[7] == 'o' && | |
10001 | name[8] == 'p' && | |
10002 | name[9] == 't') | |
10003 | { /* getsockopt */ | |
10004 | return -KEY_getsockopt; | |
10005 | } | |
10006 | ||
10007 | goto unknown; | |
10008 | ||
10009 | default: | |
10010 | goto unknown; | |
10011 | } | |
10012 | ||
10013 | default: | |
10014 | goto unknown; | |
10015 | } | |
10016 | } | |
10017 | ||
10018 | goto unknown; | |
10019 | ||
10020 | case 's': | |
10021 | switch (name[1]) | |
10022 | { | |
10023 | case 'e': | |
10024 | if (name[2] == 't') | |
10025 | { | |
10026 | switch (name[3]) | |
10027 | { | |
10028 | case 'h': | |
10029 | if (name[4] == 'o' && | |
10030 | name[5] == 's' && | |
10031 | name[6] == 't' && | |
10032 | name[7] == 'e' && | |
10033 | name[8] == 'n' && | |
10034 | name[9] == 't') | |
10035 | { /* sethostent */ | |
10036 | return -KEY_sethostent; | |
10037 | } | |
10038 | ||
10039 | goto unknown; | |
10040 | ||
10041 | case 's': | |
10042 | switch (name[4]) | |
10043 | { | |
10044 | case 'e': | |
10045 | if (name[5] == 'r' && | |
10046 | name[6] == 'v' && | |
10047 | name[7] == 'e' && | |
10048 | name[8] == 'n' && | |
10049 | name[9] == 't') | |
10050 | { /* setservent */ | |
10051 | return -KEY_setservent; | |
10052 | } | |
10053 | ||
10054 | goto unknown; | |
10055 | ||
10056 | case 'o': | |
10057 | if (name[5] == 'c' && | |
10058 | name[6] == 'k' && | |
10059 | name[7] == 'o' && | |
10060 | name[8] == 'p' && | |
10061 | name[9] == 't') | |
10062 | { /* setsockopt */ | |
10063 | return -KEY_setsockopt; | |
10064 | } | |
10065 | ||
10066 | goto unknown; | |
10067 | ||
10068 | default: | |
10069 | goto unknown; | |
10070 | } | |
10071 | ||
10072 | default: | |
10073 | goto unknown; | |
10074 | } | |
10075 | } | |
10076 | ||
10077 | goto unknown; | |
10078 | ||
10079 | case 'o': | |
10080 | if (name[2] == 'c' && | |
10081 | name[3] == 'k' && | |
10082 | name[4] == 'e' && | |
10083 | name[5] == 't' && | |
10084 | name[6] == 'p' && | |
10085 | name[7] == 'a' && | |
10086 | name[8] == 'i' && | |
10087 | name[9] == 'r') | |
10088 | { /* socketpair */ | |
10089 | return -KEY_socketpair; | |
10090 | } | |
10091 | ||
10092 | goto unknown; | |
10093 | ||
10094 | default: | |
10095 | goto unknown; | |
10096 | } | |
10097 | ||
10098 | default: | |
10099 | goto unknown; | |
e2e1dd5a | 10100 | } |
4c3bbe0f MHM |
10101 | |
10102 | case 11: /* 8 tokens of length 11 */ | |
10103 | switch (name[0]) | |
10104 | { | |
10105 | case '_': | |
10106 | if (name[1] == '_' && | |
10107 | name[2] == 'P' && | |
10108 | name[3] == 'A' && | |
10109 | name[4] == 'C' && | |
10110 | name[5] == 'K' && | |
10111 | name[6] == 'A' && | |
10112 | name[7] == 'G' && | |
10113 | name[8] == 'E' && | |
10114 | name[9] == '_' && | |
10115 | name[10] == '_') | |
10116 | { /* __PACKAGE__ */ | |
10117 | return -KEY___PACKAGE__; | |
10118 | } | |
10119 | ||
10120 | goto unknown; | |
10121 | ||
10122 | case 'e': | |
10123 | if (name[1] == 'n' && | |
10124 | name[2] == 'd' && | |
10125 | name[3] == 'p' && | |
10126 | name[4] == 'r' && | |
10127 | name[5] == 'o' && | |
10128 | name[6] == 't' && | |
10129 | name[7] == 'o' && | |
10130 | name[8] == 'e' && | |
10131 | name[9] == 'n' && | |
10132 | name[10] == 't') | |
10133 | { /* endprotoent */ | |
10134 | return -KEY_endprotoent; | |
10135 | } | |
10136 | ||
10137 | goto unknown; | |
10138 | ||
10139 | case 'g': | |
10140 | if (name[1] == 'e' && | |
10141 | name[2] == 't') | |
10142 | { | |
10143 | switch (name[3]) | |
10144 | { | |
10145 | case 'p': | |
10146 | switch (name[4]) | |
10147 | { | |
10148 | case 'e': | |
10149 | if (name[5] == 'e' && | |
10150 | name[6] == 'r' && | |
10151 | name[7] == 'n' && | |
10152 | name[8] == 'a' && | |
10153 | name[9] == 'm' && | |
10154 | name[10] == 'e') | |
10155 | { /* getpeername */ | |
10156 | return -KEY_getpeername; | |
10157 | } | |
10158 | ||
10159 | goto unknown; | |
10160 | ||
10161 | case 'r': | |
10162 | switch (name[5]) | |
10163 | { | |
10164 | case 'i': | |
10165 | if (name[6] == 'o' && | |
10166 | name[7] == 'r' && | |
10167 | name[8] == 'i' && | |
10168 | name[9] == 't' && | |
10169 | name[10] == 'y') | |
10170 | { /* getpriority */ | |
10171 | return -KEY_getpriority; | |
10172 | } | |
10173 | ||
10174 | goto unknown; | |
10175 | ||
10176 | case 'o': | |
10177 | if (name[6] == 't' && | |
10178 | name[7] == 'o' && | |
10179 | name[8] == 'e' && | |
10180 | name[9] == 'n' && | |
10181 | name[10] == 't') | |
10182 | { /* getprotoent */ | |
10183 | return -KEY_getprotoent; | |
10184 | } | |
10185 | ||
10186 | goto unknown; | |
10187 | ||
10188 | default: | |
10189 | goto unknown; | |
10190 | } | |
10191 | ||
10192 | default: | |
10193 | goto unknown; | |
10194 | } | |
10195 | ||
10196 | case 's': | |
10197 | if (name[4] == 'o' && | |
10198 | name[5] == 'c' && | |
10199 | name[6] == 'k' && | |
10200 | name[7] == 'n' && | |
10201 | name[8] == 'a' && | |
10202 | name[9] == 'm' && | |
10203 | name[10] == 'e') | |
10204 | { /* getsockname */ | |
10205 | return -KEY_getsockname; | |
10206 | } | |
10207 | ||
10208 | goto unknown; | |
10209 | ||
10210 | default: | |
10211 | goto unknown; | |
10212 | } | |
10213 | } | |
10214 | ||
10215 | goto unknown; | |
10216 | ||
10217 | case 's': | |
10218 | if (name[1] == 'e' && | |
10219 | name[2] == 't' && | |
10220 | name[3] == 'p' && | |
10221 | name[4] == 'r') | |
10222 | { | |
10223 | switch (name[5]) | |
10224 | { | |
10225 | case 'i': | |
10226 | if (name[6] == 'o' && | |
10227 | name[7] == 'r' && | |
10228 | name[8] == 'i' && | |
10229 | name[9] == 't' && | |
10230 | name[10] == 'y') | |
10231 | { /* setpriority */ | |
10232 | return -KEY_setpriority; | |
10233 | } | |
10234 | ||
10235 | goto unknown; | |
10236 | ||
10237 | case 'o': | |
10238 | if (name[6] == 't' && | |
10239 | name[7] == 'o' && | |
10240 | name[8] == 'e' && | |
10241 | name[9] == 'n' && | |
10242 | name[10] == 't') | |
10243 | { /* setprotoent */ | |
10244 | return -KEY_setprotoent; | |
10245 | } | |
10246 | ||
10247 | goto unknown; | |
10248 | ||
10249 | default: | |
10250 | goto unknown; | |
10251 | } | |
10252 | } | |
10253 | ||
10254 | goto unknown; | |
10255 | ||
10256 | default: | |
10257 | goto unknown; | |
e2e1dd5a | 10258 | } |
4c3bbe0f MHM |
10259 | |
10260 | case 12: /* 2 tokens of length 12 */ | |
10261 | if (name[0] == 'g' && | |
10262 | name[1] == 'e' && | |
10263 | name[2] == 't' && | |
10264 | name[3] == 'n' && | |
10265 | name[4] == 'e' && | |
10266 | name[5] == 't' && | |
10267 | name[6] == 'b' && | |
10268 | name[7] == 'y') | |
10269 | { | |
10270 | switch (name[8]) | |
10271 | { | |
10272 | case 'a': | |
10273 | if (name[9] == 'd' && | |
10274 | name[10] == 'd' && | |
10275 | name[11] == 'r') | |
10276 | { /* getnetbyaddr */ | |
10277 | return -KEY_getnetbyaddr; | |
10278 | } | |
10279 | ||
10280 | goto unknown; | |
10281 | ||
10282 | case 'n': | |
10283 | if (name[9] == 'a' && | |
10284 | name[10] == 'm' && | |
10285 | name[11] == 'e') | |
10286 | { /* getnetbyname */ | |
10287 | return -KEY_getnetbyname; | |
10288 | } | |
10289 | ||
10290 | goto unknown; | |
10291 | ||
10292 | default: | |
10293 | goto unknown; | |
10294 | } | |
e2e1dd5a | 10295 | } |
4c3bbe0f MHM |
10296 | |
10297 | goto unknown; | |
10298 | ||
10299 | case 13: /* 4 tokens of length 13 */ | |
10300 | if (name[0] == 'g' && | |
10301 | name[1] == 'e' && | |
10302 | name[2] == 't') | |
10303 | { | |
10304 | switch (name[3]) | |
10305 | { | |
10306 | case 'h': | |
10307 | if (name[4] == 'o' && | |
10308 | name[5] == 's' && | |
10309 | name[6] == 't' && | |
10310 | name[7] == 'b' && | |
10311 | name[8] == 'y') | |
10312 | { | |
10313 | switch (name[9]) | |
10314 | { | |
10315 | case 'a': | |
10316 | if (name[10] == 'd' && | |
10317 | name[11] == 'd' && | |
10318 | name[12] == 'r') | |
10319 | { /* gethostbyaddr */ | |
10320 | return -KEY_gethostbyaddr; | |
10321 | } | |
10322 | ||
10323 | goto unknown; | |
10324 | ||
10325 | case 'n': | |
10326 | if (name[10] == 'a' && | |
10327 | name[11] == 'm' && | |
10328 | name[12] == 'e') | |
10329 | { /* gethostbyname */ | |
10330 | return -KEY_gethostbyname; | |
10331 | } | |
10332 | ||
10333 | goto unknown; | |
10334 | ||
10335 | default: | |
10336 | goto unknown; | |
10337 | } | |
10338 | } | |
10339 | ||
10340 | goto unknown; | |
10341 | ||
10342 | case 's': | |
10343 | if (name[4] == 'e' && | |
10344 | name[5] == 'r' && | |
10345 | name[6] == 'v' && | |
10346 | name[7] == 'b' && | |
10347 | name[8] == 'y') | |
10348 | { | |
10349 | switch (name[9]) | |
10350 | { | |
10351 | case 'n': | |
10352 | if (name[10] == 'a' && | |
10353 | name[11] == 'm' && | |
10354 | name[12] == 'e') | |
10355 | { /* getservbyname */ | |
10356 | return -KEY_getservbyname; | |
10357 | } | |
10358 | ||
10359 | goto unknown; | |
10360 | ||
10361 | case 'p': | |
10362 | if (name[10] == 'o' && | |
10363 | name[11] == 'r' && | |
10364 | name[12] == 't') | |
10365 | { /* getservbyport */ | |
10366 | return -KEY_getservbyport; | |
10367 | } | |
10368 | ||
10369 | goto unknown; | |
10370 | ||
10371 | default: | |
10372 | goto unknown; | |
10373 | } | |
10374 | } | |
10375 | ||
10376 | goto unknown; | |
10377 | ||
10378 | default: | |
10379 | goto unknown; | |
10380 | } | |
e2e1dd5a | 10381 | } |
4c3bbe0f MHM |
10382 | |
10383 | goto unknown; | |
10384 | ||
10385 | case 14: /* 1 tokens of length 14 */ | |
10386 | if (name[0] == 'g' && | |
10387 | name[1] == 'e' && | |
10388 | name[2] == 't' && | |
10389 | name[3] == 'p' && | |
10390 | name[4] == 'r' && | |
10391 | name[5] == 'o' && | |
10392 | name[6] == 't' && | |
10393 | name[7] == 'o' && | |
10394 | name[8] == 'b' && | |
10395 | name[9] == 'y' && | |
10396 | name[10] == 'n' && | |
10397 | name[11] == 'a' && | |
10398 | name[12] == 'm' && | |
10399 | name[13] == 'e') | |
10400 | { /* getprotobyname */ | |
10401 | return -KEY_getprotobyname; | |
10402 | } | |
10403 | ||
10404 | goto unknown; | |
10405 | ||
10406 | case 16: /* 1 tokens of length 16 */ | |
10407 | if (name[0] == 'g' && | |
10408 | name[1] == 'e' && | |
10409 | name[2] == 't' && | |
10410 | name[3] == 'p' && | |
10411 | name[4] == 'r' && | |
10412 | name[5] == 'o' && | |
10413 | name[6] == 't' && | |
10414 | name[7] == 'o' && | |
10415 | name[8] == 'b' && | |
10416 | name[9] == 'y' && | |
10417 | name[10] == 'n' && | |
10418 | name[11] == 'u' && | |
10419 | name[12] == 'm' && | |
10420 | name[13] == 'b' && | |
10421 | name[14] == 'e' && | |
10422 | name[15] == 'r') | |
10423 | { /* getprotobynumber */ | |
10424 | return -KEY_getprotobynumber; | |
10425 | } | |
10426 | ||
10427 | goto unknown; | |
10428 | ||
10429 | default: | |
10430 | goto unknown; | |
e2e1dd5a | 10431 | } |
4c3bbe0f MHM |
10432 | |
10433 | unknown: | |
e2e1dd5a | 10434 | return 0; |
a687059c LW |
10435 | } |
10436 | ||
76e3520e | 10437 | STATIC void |
c94115d8 | 10438 | S_checkcomma(pTHX_ const char *s, const char *name, const char *what) |
a687059c | 10439 | { |
97aff369 | 10440 | dVAR; |
2f3197b3 | 10441 | |
d008e5eb | 10442 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
10443 | if (ckWARN(WARN_SYNTAX)) { |
10444 | int level = 1; | |
26ff0806 | 10445 | const char *w; |
d008e5eb GS |
10446 | for (w = s+2; *w && level; w++) { |
10447 | if (*w == '(') | |
10448 | ++level; | |
10449 | else if (*w == ')') | |
10450 | --level; | |
10451 | } | |
888fea98 NC |
10452 | while (isSPACE(*w)) |
10453 | ++w; | |
b1439985 RGS |
10454 | /* the list of chars below is for end of statements or |
10455 | * block / parens, boolean operators (&&, ||, //) and branch | |
10456 | * constructs (or, and, if, until, unless, while, err, for). | |
10457 | * Not a very solid hack... */ | |
10458 | if (!*w || !strchr(";&/|})]oaiuwef!=", *w)) | |
9014280d | 10459 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
65cec589 | 10460 | "%s (...) interpreted as function",name); |
d008e5eb | 10461 | } |
2f3197b3 | 10462 | } |
3280af22 | 10463 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 10464 | s++; |
a687059c LW |
10465 | if (*s == '(') |
10466 | s++; | |
3280af22 | 10467 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10468 | s++; |
7e2040f0 | 10469 | if (isIDFIRST_lazy_if(s,UTF)) { |
26ff0806 | 10470 | const char * const w = s++; |
7e2040f0 | 10471 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 10472 | s++; |
3280af22 | 10473 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 10474 | s++; |
e929a76b | 10475 | if (*s == ',') { |
c94115d8 | 10476 | GV* gv; |
5458a98a | 10477 | if (keyword(w, s - w, 0)) |
e929a76b | 10478 | return; |
c94115d8 NC |
10479 | |
10480 | gv = gv_fetchpvn_flags(w, s - w, 0, SVt_PVCV); | |
10481 | if (gv && GvCVu(gv)) | |
abbb3198 | 10482 | return; |
cea2e8a9 | 10483 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
10484 | } |
10485 | } | |
10486 | } | |
10487 | ||
423cee85 JH |
10488 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
10489 | Best used as sv=new_constant(..., sv, ...). | |
10490 | If s, pv are NULL, calls subroutine with one argument, | |
10491 | and type is used with error messages only. */ | |
10492 | ||
b3ac6de7 | 10493 | STATIC SV * |
eb0d8d16 NC |
10494 | S_new_constant(pTHX_ const char *s, STRLEN len, const char *key, STRLEN keylen, |
10495 | SV *sv, SV *pv, const char *type, STRLEN typelen) | |
b3ac6de7 | 10496 | { |
27da23d5 | 10497 | dVAR; dSP; |
890ce7af | 10498 | HV * const table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 10499 | SV *res; |
b3ac6de7 IZ |
10500 | SV **cvp; |
10501 | SV *cv, *typesv; | |
89e33a05 | 10502 | const char *why1 = "", *why2 = "", *why3 = ""; |
4e553d73 | 10503 | |
f0af216f | 10504 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
10505 | SV *msg; |
10506 | ||
10edeb5d JH |
10507 | why2 = (const char *) |
10508 | (strEQ(key,"charnames") | |
10509 | ? "(possibly a missing \"use charnames ...\")" | |
10510 | : ""); | |
4e553d73 | 10511 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
10512 | (type ? type: "undef"), why2); |
10513 | ||
10514 | /* This is convoluted and evil ("goto considered harmful") | |
10515 | * but I do not understand the intricacies of all the different | |
10516 | * failure modes of %^H in here. The goal here is to make | |
10517 | * the most probable error message user-friendly. --jhi */ | |
10518 | ||
10519 | goto msgdone; | |
10520 | ||
423cee85 | 10521 | report: |
4e553d73 | 10522 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 10523 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 10524 | msgdone: |
95a20fc0 | 10525 | yyerror(SvPVX_const(msg)); |
423cee85 JH |
10526 | SvREFCNT_dec(msg); |
10527 | return sv; | |
10528 | } | |
eb0d8d16 | 10529 | cvp = hv_fetch(table, key, keylen, FALSE); |
b3ac6de7 | 10530 | if (!cvp || !SvOK(*cvp)) { |
423cee85 JH |
10531 | why1 = "$^H{"; |
10532 | why2 = key; | |
f0af216f | 10533 | why3 = "} is not defined"; |
423cee85 | 10534 | goto report; |
b3ac6de7 IZ |
10535 | } |
10536 | sv_2mortal(sv); /* Parent created it permanently */ | |
10537 | cv = *cvp; | |
423cee85 | 10538 | if (!pv && s) |
59cd0e26 | 10539 | pv = newSVpvn_flags(s, len, SVs_TEMP); |
423cee85 | 10540 | if (type && pv) |
59cd0e26 | 10541 | typesv = newSVpvn_flags(type, typelen, SVs_TEMP); |
b3ac6de7 | 10542 | else |
423cee85 | 10543 | typesv = &PL_sv_undef; |
4e553d73 | 10544 | |
e788e7d3 | 10545 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
10546 | ENTER ; |
10547 | SAVETMPS; | |
4e553d73 | 10548 | |
423cee85 | 10549 | PUSHMARK(SP) ; |
a5845cb7 | 10550 | EXTEND(sp, 3); |
423cee85 JH |
10551 | if (pv) |
10552 | PUSHs(pv); | |
b3ac6de7 | 10553 | PUSHs(sv); |
423cee85 JH |
10554 | if (pv) |
10555 | PUSHs(typesv); | |
b3ac6de7 | 10556 | PUTBACK; |
423cee85 | 10557 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 10558 | |
423cee85 | 10559 | SPAGAIN ; |
4e553d73 | 10560 | |
423cee85 | 10561 | /* Check the eval first */ |
9b0e499b | 10562 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
396482e1 | 10563 | sv_catpvs(ERRSV, "Propagated"); |
8b6b16e7 | 10564 | yyerror(SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */ |
e1f15930 | 10565 | (void)POPs; |
b37c2d43 | 10566 | res = SvREFCNT_inc_simple(sv); |
423cee85 JH |
10567 | } |
10568 | else { | |
10569 | res = POPs; | |
b37c2d43 | 10570 | SvREFCNT_inc_simple_void(res); |
423cee85 | 10571 | } |
4e553d73 | 10572 | |
423cee85 JH |
10573 | PUTBACK ; |
10574 | FREETMPS ; | |
10575 | LEAVE ; | |
b3ac6de7 | 10576 | POPSTACK; |
4e553d73 | 10577 | |
b3ac6de7 | 10578 | if (!SvOK(res)) { |
423cee85 JH |
10579 | why1 = "Call to &{$^H{"; |
10580 | why2 = key; | |
f0af216f | 10581 | why3 = "}} did not return a defined value"; |
423cee85 JH |
10582 | sv = res; |
10583 | goto report; | |
9b0e499b | 10584 | } |
423cee85 | 10585 | |
9b0e499b | 10586 | return res; |
b3ac6de7 | 10587 | } |
4e553d73 | 10588 | |
d0a148a6 NC |
10589 | /* Returns a NUL terminated string, with the length of the string written to |
10590 | *slp | |
10591 | */ | |
76e3520e | 10592 | STATIC char * |
cea2e8a9 | 10593 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 | 10594 | { |
97aff369 | 10595 | dVAR; |
463ee0b2 | 10596 | register char *d = dest; |
890ce7af | 10597 | register char * const e = d + destlen - 3; /* two-character token, ending NUL */ |
463ee0b2 | 10598 | for (;;) { |
8903cb82 | 10599 | if (d >= e) |
cea2e8a9 | 10600 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10601 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10602 | *d++ = *s++; |
c35e046a | 10603 | else if (allow_package && (*s == '\'') && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10604 | *d++ = ':'; |
10605 | *d++ = ':'; | |
10606 | s++; | |
10607 | } | |
c35e046a | 10608 | else if (allow_package && (s[0] == ':') && (s[1] == ':') && (s[2] != '$')) { |
463ee0b2 LW |
10609 | *d++ = *s++; |
10610 | *d++ = *s++; | |
10611 | } | |
fd400ab9 | 10612 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10613 | char *t = s + UTF8SKIP(s); |
c35e046a | 10614 | size_t len; |
fd400ab9 | 10615 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 | 10616 | t += UTF8SKIP(t); |
c35e046a AL |
10617 | len = t - s; |
10618 | if (d + len > e) | |
cea2e8a9 | 10619 | Perl_croak(aTHX_ ident_too_long); |
c35e046a AL |
10620 | Copy(s, d, len, char); |
10621 | d += len; | |
a0ed51b3 LW |
10622 | s = t; |
10623 | } | |
463ee0b2 LW |
10624 | else { |
10625 | *d = '\0'; | |
10626 | *slp = d - dest; | |
10627 | return s; | |
e929a76b | 10628 | } |
378cc40b LW |
10629 | } |
10630 | } | |
10631 | ||
76e3520e | 10632 | STATIC char * |
f54cb97a | 10633 | S_scan_ident(pTHX_ register char *s, register const char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b | 10634 | { |
97aff369 | 10635 | dVAR; |
6136c704 | 10636 | char *bracket = NULL; |
748a9306 | 10637 | char funny = *s++; |
6136c704 AL |
10638 | register char *d = dest; |
10639 | register char * const e = d + destlen + 3; /* two-character token, ending NUL */ | |
378cc40b | 10640 | |
a0d0e21e | 10641 | if (isSPACE(*s)) |
29595ff2 | 10642 | s = PEEKSPACE(s); |
de3bb511 | 10643 | if (isDIGIT(*s)) { |
8903cb82 | 10644 | while (isDIGIT(*s)) { |
10645 | if (d >= e) | |
cea2e8a9 | 10646 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 10647 | *d++ = *s++; |
8903cb82 | 10648 | } |
378cc40b LW |
10649 | } |
10650 | else { | |
463ee0b2 | 10651 | for (;;) { |
8903cb82 | 10652 | if (d >= e) |
cea2e8a9 | 10653 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 10654 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 10655 | *d++ = *s++; |
7e2040f0 | 10656 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
10657 | *d++ = ':'; |
10658 | *d++ = ':'; | |
10659 | s++; | |
10660 | } | |
a0d0e21e | 10661 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
10662 | *d++ = *s++; |
10663 | *d++ = *s++; | |
10664 | } | |
fd400ab9 | 10665 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 10666 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 10667 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
10668 | t += UTF8SKIP(t); |
10669 | if (d + (t - s) > e) | |
cea2e8a9 | 10670 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
10671 | Copy(s, d, t - s, char); |
10672 | d += t - s; | |
10673 | s = t; | |
10674 | } | |
463ee0b2 LW |
10675 | else |
10676 | break; | |
10677 | } | |
378cc40b LW |
10678 | } |
10679 | *d = '\0'; | |
10680 | d = dest; | |
79072805 | 10681 | if (*d) { |
3280af22 NIS |
10682 | if (PL_lex_state != LEX_NORMAL) |
10683 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 10684 | return s; |
378cc40b | 10685 | } |
748a9306 | 10686 | if (*s == '$' && s[1] && |
3792a11b | 10687 | (isALNUM_lazy_if(s+1,UTF) || s[1] == '$' || s[1] == '{' || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 10688 | { |
4810e5ec | 10689 | return s; |
5cd24f17 | 10690 | } |
79072805 LW |
10691 | if (*s == '{') { |
10692 | bracket = s; | |
10693 | s++; | |
10694 | } | |
10695 | else if (ck_uni) | |
10696 | check_uni(); | |
93a17b20 | 10697 | if (s < send) |
79072805 LW |
10698 | *d = *s++; |
10699 | d[1] = '\0'; | |
2b92dfce | 10700 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 10701 | *d = toCTRL(*s); |
10702 | s++; | |
de3bb511 | 10703 | } |
79072805 | 10704 | if (bracket) { |
748a9306 | 10705 | if (isSPACE(s[-1])) { |
fa83b5b6 | 10706 | while (s < send) { |
f54cb97a | 10707 | const char ch = *s++; |
bf4acbe4 | 10708 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 10709 | *d = ch; |
10710 | break; | |
10711 | } | |
10712 | } | |
748a9306 | 10713 | } |
7e2040f0 | 10714 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 10715 | d++; |
a0ed51b3 | 10716 | if (UTF) { |
6136c704 AL |
10717 | char *end = s; |
10718 | while ((end < send && isALNUM_lazy_if(end,UTF)) || *end == ':') { | |
10719 | end += UTF8SKIP(end); | |
10720 | while (end < send && UTF8_IS_CONTINUED(*end) && is_utf8_mark((U8*)end)) | |
10721 | end += UTF8SKIP(end); | |
a0ed51b3 | 10722 | } |
6136c704 AL |
10723 | Copy(s, d, end - s, char); |
10724 | d += end - s; | |
10725 | s = end; | |
a0ed51b3 LW |
10726 | } |
10727 | else { | |
2b92dfce | 10728 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 10729 | *d++ = *s++; |
2b92dfce | 10730 | if (d >= e) |
cea2e8a9 | 10731 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 10732 | } |
79072805 | 10733 | *d = '\0'; |
c35e046a AL |
10734 | while (s < send && SPACE_OR_TAB(*s)) |
10735 | s++; | |
ff68c719 | 10736 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
5458a98a | 10737 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest, 0)) { |
10edeb5d JH |
10738 | const char * const brack = |
10739 | (const char *) | |
10740 | ((*s == '[') ? "[...]" : "{...}"); | |
9014280d | 10741 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
599cee73 | 10742 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
10743 | funny, dest, brack, funny, dest, brack); |
10744 | } | |
79072805 | 10745 | bracket++; |
a0be28da | 10746 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
10747 | return s; |
10748 | } | |
4e553d73 NIS |
10749 | } |
10750 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
10751 | * 1999-02-27 mjd-perl-patch@plover.com */ |
10752 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
10753 | && isALNUM(*s)) | |
10754 | { | |
10755 | d++; | |
10756 | while (isALNUM(*s) && d < e) { | |
10757 | *d++ = *s++; | |
10758 | } | |
10759 | if (d >= e) | |
cea2e8a9 | 10760 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 10761 | *d = '\0'; |
79072805 LW |
10762 | } |
10763 | if (*s == '}') { | |
10764 | s++; | |
7df0d042 | 10765 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) { |
3280af22 | 10766 | PL_lex_state = LEX_INTERPEND; |
7df0d042 AE |
10767 | PL_expect = XREF; |
10768 | } | |
d008e5eb | 10769 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 10770 | if (ckWARN(WARN_AMBIGUOUS) && |
780a5241 NC |
10771 | (keyword(dest, d - dest, 0) |
10772 | || get_cvn_flags(dest, d - dest, 0))) | |
d008e5eb | 10773 | { |
c35e046a AL |
10774 | if (funny == '#') |
10775 | funny = '@'; | |
9014280d | 10776 | Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS), |
d008e5eb GS |
10777 | "Ambiguous use of %c{%s} resolved to %c%s", |
10778 | funny, dest, funny, dest); | |
10779 | } | |
10780 | } | |
79072805 LW |
10781 | } |
10782 | else { | |
10783 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 10784 | *dest = '\0'; |
79072805 LW |
10785 | } |
10786 | } | |
3280af22 NIS |
10787 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
10788 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
10789 | return s; |
10790 | } | |
10791 | ||
cea2e8a9 | 10792 | void |
2b36a5a0 | 10793 | Perl_pmflag(pTHX_ U32* pmfl, int ch) |
a0d0e21e | 10794 | { |
96a5add6 | 10795 | PERL_UNUSED_CONTEXT; |
cde0cee5 YO |
10796 | if (ch<256) { |
10797 | char c = (char)ch; | |
10798 | switch (c) { | |
10799 | CASE_STD_PMMOD_FLAGS_PARSE_SET(pmfl); | |
a20207d7 YO |
10800 | case GLOBAL_PAT_MOD: *pmfl |= PMf_GLOBAL; break; |
10801 | case CONTINUE_PAT_MOD: *pmfl |= PMf_CONTINUE; break; | |
10802 | case ONCE_PAT_MOD: *pmfl |= PMf_KEEP; break; | |
10803 | case KEEPCOPY_PAT_MOD: *pmfl |= PMf_KEEPCOPY; break; | |
cde0cee5 YO |
10804 | } |
10805 | } | |
a0d0e21e | 10806 | } |
378cc40b | 10807 | |
76e3520e | 10808 | STATIC char * |
cea2e8a9 | 10809 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 10810 | { |
97aff369 | 10811 | dVAR; |
79072805 | 10812 | PMOP *pm; |
5db06880 | 10813 | char *s = scan_str(start,!!PL_madskills,FALSE); |
10edeb5d | 10814 | const char * const valid_flags = |
a20207d7 | 10815 | (const char *)((type == OP_QR) ? QR_PAT_MODS : M_PAT_MODS); |
5db06880 NC |
10816 | #ifdef PERL_MAD |
10817 | char *modstart; | |
10818 | #endif | |
10819 | ||
378cc40b | 10820 | |
25c09cbf | 10821 | if (!s) { |
6136c704 | 10822 | const char * const delimiter = skipspace(start); |
10edeb5d JH |
10823 | Perl_croak(aTHX_ |
10824 | (const char *) | |
10825 | (*delimiter == '?' | |
10826 | ? "Search pattern not terminated or ternary operator parsed as search pattern" | |
10827 | : "Search pattern not terminated" )); | |
25c09cbf | 10828 | } |
bbce6d69 | 10829 | |
8782bef2 | 10830 | pm = (PMOP*)newPMOP(type, 0); |
ad639bfb NC |
10831 | if (PL_multi_open == '?') { |
10832 | /* This is the only point in the code that sets PMf_ONCE: */ | |
79072805 | 10833 | pm->op_pmflags |= PMf_ONCE; |
ad639bfb NC |
10834 | |
10835 | /* Hence it's safe to do this bit of PMOP book-keeping here, which | |
10836 | allows us to restrict the list needed by reset to just the ?? | |
10837 | matches. */ | |
10838 | assert(type != OP_TRANS); | |
10839 | if (PL_curstash) { | |
10840 | MAGIC *mg = mg_find((SV*)PL_curstash, PERL_MAGIC_symtab); | |
10841 | U32 elements; | |
10842 | if (!mg) { | |
10843 | mg = sv_magicext((SV*)PL_curstash, 0, PERL_MAGIC_symtab, 0, 0, | |
10844 | 0); | |
10845 | } | |
10846 | elements = mg->mg_len / sizeof(PMOP**); | |
10847 | Renewc(mg->mg_ptr, elements + 1, PMOP*, char); | |
10848 | ((PMOP**)mg->mg_ptr) [elements++] = pm; | |
10849 | mg->mg_len = elements * sizeof(PMOP**); | |
10850 | PmopSTASH_set(pm,PL_curstash); | |
10851 | } | |
10852 | } | |
5db06880 NC |
10853 | #ifdef PERL_MAD |
10854 | modstart = s; | |
10855 | #endif | |
6136c704 AL |
10856 | while (*s && strchr(valid_flags, *s)) |
10857 | pmflag(&pm->op_pmflags,*s++); | |
5db06880 NC |
10858 | #ifdef PERL_MAD |
10859 | if (PL_madskills && modstart != s) { | |
10860 | SV* tmptoken = newSVpvn(modstart, s - modstart); | |
10861 | append_madprops(newMADPROP('m', MAD_SV, tmptoken, 0), (OP*)pm, 0); | |
10862 | } | |
10863 | #endif | |
4ac733c9 | 10864 | /* issue a warning if /c is specified,but /g is not */ |
041457d9 DM |
10865 | if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL) |
10866 | && ckWARN(WARN_REGEXP)) | |
4ac733c9 | 10867 | { |
a20207d7 YO |
10868 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), |
10869 | "Use of /c modifier is meaningless without /g" ); | |
4ac733c9 MJD |
10870 | } |
10871 | ||
3280af22 | 10872 | PL_lex_op = (OP*)pm; |
6154021b | 10873 | pl_yylval.ival = OP_MATCH; |
378cc40b LW |
10874 | return s; |
10875 | } | |
10876 | ||
76e3520e | 10877 | STATIC char * |
cea2e8a9 | 10878 | S_scan_subst(pTHX_ char *start) |
79072805 | 10879 | { |
27da23d5 | 10880 | dVAR; |
a0d0e21e | 10881 | register char *s; |
79072805 | 10882 | register PMOP *pm; |
4fdae800 | 10883 | I32 first_start; |
79072805 | 10884 | I32 es = 0; |
5db06880 NC |
10885 | #ifdef PERL_MAD |
10886 | char *modstart; | |
10887 | #endif | |
79072805 | 10888 | |
6154021b | 10889 | pl_yylval.ival = OP_NULL; |
79072805 | 10890 | |
5db06880 | 10891 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 10892 | |
37fd879b | 10893 | if (!s) |
cea2e8a9 | 10894 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 10895 | |
3280af22 | 10896 | if (s[-1] == PL_multi_open) |
79072805 | 10897 | s--; |
5db06880 NC |
10898 | #ifdef PERL_MAD |
10899 | if (PL_madskills) { | |
cd81e915 NC |
10900 | CURMAD('q', PL_thisopen); |
10901 | CURMAD('_', PL_thiswhite); | |
10902 | CURMAD('E', PL_thisstuff); | |
10903 | CURMAD('Q', PL_thisclose); | |
10904 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
10905 | } |
10906 | #endif | |
79072805 | 10907 | |
3280af22 | 10908 | first_start = PL_multi_start; |
5db06880 | 10909 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 10910 | if (!s) { |
37fd879b | 10911 | if (PL_lex_stuff) { |
3280af22 | 10912 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 10913 | PL_lex_stuff = NULL; |
37fd879b | 10914 | } |
cea2e8a9 | 10915 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 10916 | } |
3280af22 | 10917 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 10918 | |
79072805 | 10919 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
5db06880 NC |
10920 | |
10921 | #ifdef PERL_MAD | |
10922 | if (PL_madskills) { | |
cd81e915 NC |
10923 | CURMAD('z', PL_thisopen); |
10924 | CURMAD('R', PL_thisstuff); | |
10925 | CURMAD('Z', PL_thisclose); | |
5db06880 NC |
10926 | } |
10927 | modstart = s; | |
10928 | #endif | |
10929 | ||
48c036b1 | 10930 | while (*s) { |
a20207d7 | 10931 | if (*s == EXEC_PAT_MOD) { |
a687059c | 10932 | s++; |
2f3197b3 | 10933 | es++; |
a687059c | 10934 | } |
a20207d7 | 10935 | else if (strchr(S_PAT_MODS, *s)) |
a0d0e21e | 10936 | pmflag(&pm->op_pmflags,*s++); |
48c036b1 GS |
10937 | else |
10938 | break; | |
378cc40b | 10939 | } |
79072805 | 10940 | |
5db06880 NC |
10941 | #ifdef PERL_MAD |
10942 | if (PL_madskills) { | |
10943 | if (modstart != s) | |
10944 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
10945 | append_madprops(PL_thismad, (OP*)pm, 0); |
10946 | PL_thismad = 0; | |
5db06880 NC |
10947 | } |
10948 | #endif | |
0bd48802 AL |
10949 | if ((pm->op_pmflags & PMf_CONTINUE) && ckWARN(WARN_REGEXP)) { |
10950 | Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" ); | |
4ac733c9 MJD |
10951 | } |
10952 | ||
79072805 | 10953 | if (es) { |
6136c704 AL |
10954 | SV * const repl = newSVpvs(""); |
10955 | ||
0244c3a4 GS |
10956 | PL_sublex_info.super_bufptr = s; |
10957 | PL_sublex_info.super_bufend = PL_bufend; | |
10958 | PL_multi_end = 0; | |
79072805 | 10959 | pm->op_pmflags |= PMf_EVAL; |
a5849ce5 NC |
10960 | while (es-- > 0) { |
10961 | if (es) | |
10962 | sv_catpvs(repl, "eval "); | |
10963 | else | |
10964 | sv_catpvs(repl, "do "); | |
10965 | } | |
6f43d98f | 10966 | sv_catpvs(repl, "{"); |
3280af22 | 10967 | sv_catsv(repl, PL_lex_repl); |
9badc361 RGS |
10968 | if (strchr(SvPVX(PL_lex_repl), '#')) |
10969 | sv_catpvs(repl, "\n"); | |
10970 | sv_catpvs(repl, "}"); | |
25da4f38 | 10971 | SvEVALED_on(repl); |
3280af22 NIS |
10972 | SvREFCNT_dec(PL_lex_repl); |
10973 | PL_lex_repl = repl; | |
378cc40b | 10974 | } |
79072805 | 10975 | |
3280af22 | 10976 | PL_lex_op = (OP*)pm; |
6154021b | 10977 | pl_yylval.ival = OP_SUBST; |
378cc40b LW |
10978 | return s; |
10979 | } | |
10980 | ||
76e3520e | 10981 | STATIC char * |
cea2e8a9 | 10982 | S_scan_trans(pTHX_ char *start) |
378cc40b | 10983 | { |
97aff369 | 10984 | dVAR; |
a0d0e21e | 10985 | register char* s; |
11343788 | 10986 | OP *o; |
79072805 LW |
10987 | short *tbl; |
10988 | I32 squash; | |
a0ed51b3 | 10989 | I32 del; |
79072805 | 10990 | I32 complement; |
5db06880 NC |
10991 | #ifdef PERL_MAD |
10992 | char *modstart; | |
10993 | #endif | |
79072805 | 10994 | |
6154021b | 10995 | pl_yylval.ival = OP_NULL; |
79072805 | 10996 | |
5db06880 | 10997 | s = scan_str(start,!!PL_madskills,FALSE); |
37fd879b | 10998 | if (!s) |
cea2e8a9 | 10999 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
5db06880 | 11000 | |
3280af22 | 11001 | if (s[-1] == PL_multi_open) |
2f3197b3 | 11002 | s--; |
5db06880 NC |
11003 | #ifdef PERL_MAD |
11004 | if (PL_madskills) { | |
cd81e915 NC |
11005 | CURMAD('q', PL_thisopen); |
11006 | CURMAD('_', PL_thiswhite); | |
11007 | CURMAD('E', PL_thisstuff); | |
11008 | CURMAD('Q', PL_thisclose); | |
11009 | PL_realtokenstart = s - SvPVX(PL_linestr); | |
5db06880 NC |
11010 | } |
11011 | #endif | |
2f3197b3 | 11012 | |
5db06880 | 11013 | s = scan_str(s,!!PL_madskills,FALSE); |
79072805 | 11014 | if (!s) { |
37fd879b | 11015 | if (PL_lex_stuff) { |
3280af22 | 11016 | SvREFCNT_dec(PL_lex_stuff); |
a0714e2c | 11017 | PL_lex_stuff = NULL; |
37fd879b | 11018 | } |
cea2e8a9 | 11019 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 11020 | } |
5db06880 | 11021 | if (PL_madskills) { |
cd81e915 NC |
11022 | CURMAD('z', PL_thisopen); |
11023 | CURMAD('R', PL_thisstuff); | |
11024 | CURMAD('Z', PL_thisclose); | |
5db06880 | 11025 | } |
79072805 | 11026 | |
a0ed51b3 | 11027 | complement = del = squash = 0; |
5db06880 NC |
11028 | #ifdef PERL_MAD |
11029 | modstart = s; | |
11030 | #endif | |
7a1e2023 NC |
11031 | while (1) { |
11032 | switch (*s) { | |
11033 | case 'c': | |
79072805 | 11034 | complement = OPpTRANS_COMPLEMENT; |
7a1e2023 NC |
11035 | break; |
11036 | case 'd': | |
a0ed51b3 | 11037 | del = OPpTRANS_DELETE; |
7a1e2023 NC |
11038 | break; |
11039 | case 's': | |
79072805 | 11040 | squash = OPpTRANS_SQUASH; |
7a1e2023 NC |
11041 | break; |
11042 | default: | |
11043 | goto no_more; | |
11044 | } | |
395c3793 LW |
11045 | s++; |
11046 | } | |
7a1e2023 | 11047 | no_more: |
8973db79 | 11048 | |
aa1f7c5b | 11049 | tbl = (short *)PerlMemShared_calloc(complement&&!del?258:256, sizeof(short)); |
8973db79 | 11050 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
59f00321 RGS |
11051 | o->op_private &= ~OPpTRANS_ALL; |
11052 | o->op_private |= del|squash|complement| | |
7948272d NIS |
11053 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| |
11054 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 11055 | |
3280af22 | 11056 | PL_lex_op = o; |
6154021b | 11057 | pl_yylval.ival = OP_TRANS; |
5db06880 NC |
11058 | |
11059 | #ifdef PERL_MAD | |
11060 | if (PL_madskills) { | |
11061 | if (modstart != s) | |
11062 | curmad('m', newSVpvn(modstart, s - modstart)); | |
cd81e915 NC |
11063 | append_madprops(PL_thismad, o, 0); |
11064 | PL_thismad = 0; | |
5db06880 NC |
11065 | } |
11066 | #endif | |
11067 | ||
79072805 LW |
11068 | return s; |
11069 | } | |
11070 | ||
76e3520e | 11071 | STATIC char * |
cea2e8a9 | 11072 | S_scan_heredoc(pTHX_ register char *s) |
79072805 | 11073 | { |
97aff369 | 11074 | dVAR; |
79072805 LW |
11075 | SV *herewas; |
11076 | I32 op_type = OP_SCALAR; | |
11077 | I32 len; | |
11078 | SV *tmpstr; | |
11079 | char term; | |
73d840c0 | 11080 | const char *found_newline; |
79072805 | 11081 | register char *d; |
fc36a67e | 11082 | register char *e; |
4633a7c4 | 11083 | char *peek; |
f54cb97a | 11084 | const int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
5db06880 NC |
11085 | #ifdef PERL_MAD |
11086 | I32 stuffstart = s - SvPVX(PL_linestr); | |
11087 | char *tstart; | |
11088 | ||
cd81e915 | 11089 | PL_realtokenstart = -1; |
5db06880 | 11090 | #endif |
79072805 LW |
11091 | |
11092 | s += 2; | |
3280af22 NIS |
11093 | d = PL_tokenbuf; |
11094 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 11095 | if (!outer) |
79072805 | 11096 | *d++ = '\n'; |
c35e046a AL |
11097 | peek = s; |
11098 | while (SPACE_OR_TAB(*peek)) | |
11099 | peek++; | |
3792a11b | 11100 | if (*peek == '`' || *peek == '\'' || *peek =='"') { |
4633a7c4 | 11101 | s = peek; |
79072805 | 11102 | term = *s++; |
3280af22 | 11103 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 11104 | d += len; |
3280af22 | 11105 | if (s < PL_bufend) |
79072805 | 11106 | s++; |
79072805 LW |
11107 | } |
11108 | else { | |
11109 | if (*s == '\\') | |
11110 | s++, term = '\''; | |
11111 | else | |
11112 | term = '"'; | |
7e2040f0 | 11113 | if (!isALNUM_lazy_if(s,UTF)) |
12bcd1a6 | 11114 | deprecate_old("bare << to mean <<\"\""); |
7e2040f0 | 11115 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 11116 | if (d < e) |
11117 | *d++ = *s; | |
11118 | } | |
11119 | } | |
3280af22 | 11120 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 11121 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
11122 | *d++ = '\n'; |
11123 | *d = '\0'; | |
3280af22 | 11124 | len = d - PL_tokenbuf; |
5db06880 NC |
11125 | |
11126 | #ifdef PERL_MAD | |
11127 | if (PL_madskills) { | |
11128 | tstart = PL_tokenbuf + !outer; | |
cd81e915 | 11129 | PL_thisclose = newSVpvn(tstart, len - !outer); |
5db06880 | 11130 | tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 | 11131 | PL_thisopen = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11132 | stuffstart = s - SvPVX(PL_linestr); |
11133 | } | |
11134 | #endif | |
6a27c188 | 11135 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
11136 | d = strchr(s, '\r'); |
11137 | if (d) { | |
b464bac0 | 11138 | char * const olds = s; |
f63a84b2 | 11139 | s = d; |
3280af22 | 11140 | while (s < PL_bufend) { |
f63a84b2 LW |
11141 | if (*s == '\r') { |
11142 | *d++ = '\n'; | |
11143 | if (*++s == '\n') | |
11144 | s++; | |
11145 | } | |
11146 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
11147 | *d++ = *s++; | |
11148 | s++; | |
11149 | } | |
11150 | else | |
11151 | *d++ = *s++; | |
11152 | } | |
11153 | *d = '\0'; | |
3280af22 | 11154 | PL_bufend = d; |
95a20fc0 | 11155 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 LW |
11156 | s = olds; |
11157 | } | |
11158 | #endif | |
5db06880 NC |
11159 | #ifdef PERL_MAD |
11160 | found_newline = 0; | |
11161 | #endif | |
10edeb5d | 11162 | if ( outer || !(found_newline = (char*)memchr((void*)s, '\n', PL_bufend - s)) ) { |
73d840c0 AL |
11163 | herewas = newSVpvn(s,PL_bufend-s); |
11164 | } | |
11165 | else { | |
5db06880 NC |
11166 | #ifdef PERL_MAD |
11167 | herewas = newSVpvn(s-1,found_newline-s+1); | |
11168 | #else | |
73d840c0 AL |
11169 | s--; |
11170 | herewas = newSVpvn(s,found_newline-s); | |
5db06880 | 11171 | #endif |
73d840c0 | 11172 | } |
5db06880 NC |
11173 | #ifdef PERL_MAD |
11174 | if (PL_madskills) { | |
11175 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11176 | if (PL_thisstuff) |
11177 | sv_catpvn(PL_thisstuff, tstart, s - tstart); | |
5db06880 | 11178 | else |
cd81e915 | 11179 | PL_thisstuff = newSVpvn(tstart, s - tstart); |
5db06880 NC |
11180 | } |
11181 | #endif | |
79072805 | 11182 | s += SvCUR(herewas); |
748a9306 | 11183 | |
5db06880 NC |
11184 | #ifdef PERL_MAD |
11185 | stuffstart = s - SvPVX(PL_linestr); | |
11186 | ||
11187 | if (found_newline) | |
11188 | s--; | |
11189 | #endif | |
11190 | ||
7d0a29fe NC |
11191 | tmpstr = newSV_type(SVt_PVIV); |
11192 | SvGROW(tmpstr, 80); | |
748a9306 | 11193 | if (term == '\'') { |
79072805 | 11194 | op_type = OP_CONST; |
45977657 | 11195 | SvIV_set(tmpstr, -1); |
748a9306 LW |
11196 | } |
11197 | else if (term == '`') { | |
79072805 | 11198 | op_type = OP_BACKTICK; |
45977657 | 11199 | SvIV_set(tmpstr, '\\'); |
748a9306 | 11200 | } |
79072805 LW |
11201 | |
11202 | CLINE; | |
57843af0 | 11203 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
11204 | PL_multi_open = PL_multi_close = '<'; |
11205 | term = *PL_tokenbuf; | |
0244c3a4 | 11206 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
6136c704 AL |
11207 | char * const bufptr = PL_sublex_info.super_bufptr; |
11208 | char * const bufend = PL_sublex_info.super_bufend; | |
b464bac0 | 11209 | char * const olds = s - SvCUR(herewas); |
0244c3a4 GS |
11210 | s = strchr(bufptr, '\n'); |
11211 | if (!s) | |
11212 | s = bufend; | |
11213 | d = s; | |
11214 | while (s < bufend && | |
11215 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
11216 | if (*s++ == '\n') | |
57843af0 | 11217 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
11218 | } |
11219 | if (s >= bufend) { | |
eb160463 | 11220 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
0244c3a4 GS |
11221 | missingterm(PL_tokenbuf); |
11222 | } | |
11223 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
11224 | sv_setpvn(tmpstr,d+1,s-d); | |
11225 | s += len - 1; | |
11226 | sv_catpvn(herewas,s,bufend-s); | |
95a20fc0 | 11227 | Copy(SvPVX_const(herewas),bufptr,SvCUR(herewas) + 1,char); |
0244c3a4 GS |
11228 | |
11229 | s = olds; | |
11230 | goto retval; | |
11231 | } | |
11232 | else if (!outer) { | |
79072805 | 11233 | d = s; |
3280af22 NIS |
11234 | while (s < PL_bufend && |
11235 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 11236 | if (*s++ == '\n') |
57843af0 | 11237 | CopLINE_inc(PL_curcop); |
79072805 | 11238 | } |
3280af22 | 11239 | if (s >= PL_bufend) { |
eb160463 | 11240 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11241 | missingterm(PL_tokenbuf); |
79072805 LW |
11242 | } |
11243 | sv_setpvn(tmpstr,d+1,s-d); | |
5db06880 NC |
11244 | #ifdef PERL_MAD |
11245 | if (PL_madskills) { | |
cd81e915 NC |
11246 | if (PL_thisstuff) |
11247 | sv_catpvn(PL_thisstuff, d + 1, s - d); | |
5db06880 | 11248 | else |
cd81e915 | 11249 | PL_thisstuff = newSVpvn(d + 1, s - d); |
5db06880 NC |
11250 | stuffstart = s - SvPVX(PL_linestr); |
11251 | } | |
11252 | #endif | |
79072805 | 11253 | s += len - 1; |
57843af0 | 11254 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 11255 | |
3280af22 NIS |
11256 | sv_catpvn(herewas,s,PL_bufend-s); |
11257 | sv_setsv(PL_linestr,herewas); | |
11258 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
11259 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11260 | PL_last_lop = PL_last_uni = NULL; |
79072805 LW |
11261 | } |
11262 | else | |
11263 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
3280af22 | 11264 | while (s >= PL_bufend) { /* multiple line string? */ |
5db06880 NC |
11265 | #ifdef PERL_MAD |
11266 | if (PL_madskills) { | |
11267 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11268 | if (PL_thisstuff) |
11269 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11270 | else |
cd81e915 | 11271 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11272 | } |
11273 | #endif | |
fd2d0953 | 11274 | if (!outer || |
3280af22 | 11275 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { |
eb160463 | 11276 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
3280af22 | 11277 | missingterm(PL_tokenbuf); |
79072805 | 11278 | } |
5db06880 NC |
11279 | #ifdef PERL_MAD |
11280 | stuffstart = s - SvPVX(PL_linestr); | |
11281 | #endif | |
57843af0 | 11282 | CopLINE_inc(PL_curcop); |
3280af22 | 11283 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
bd61b366 | 11284 | PL_last_lop = PL_last_uni = NULL; |
6a27c188 | 11285 | #ifndef PERL_STRICT_CR |
3280af22 | 11286 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
11287 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
11288 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 11289 | { |
3280af22 NIS |
11290 | PL_bufend[-2] = '\n'; |
11291 | PL_bufend--; | |
95a20fc0 | 11292 | SvCUR_set(PL_linestr, PL_bufend - SvPVX_const(PL_linestr)); |
f63a84b2 | 11293 | } |
3280af22 NIS |
11294 | else if (PL_bufend[-1] == '\r') |
11295 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11296 | } |
3280af22 NIS |
11297 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
11298 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 11299 | #endif |
80a702cd | 11300 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 11301 | update_debugger_info(PL_linestr, NULL, 0); |
3280af22 | 11302 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
95a20fc0 | 11303 | STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr); |
1de9afcd | 11304 | *(SvPVX(PL_linestr) + off ) = ' '; |
3280af22 NIS |
11305 | sv_catsv(PL_linestr,herewas); |
11306 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
1de9afcd | 11307 | s = SvPVX(PL_linestr) + off; /* In case PV of PL_linestr moved. */ |
79072805 LW |
11308 | } |
11309 | else { | |
3280af22 NIS |
11310 | s = PL_bufend; |
11311 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
11312 | } |
11313 | } | |
79072805 | 11314 | s++; |
0244c3a4 | 11315 | retval: |
57843af0 | 11316 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 11317 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
1da4ca5f | 11318 | SvPV_shrink_to_cur(tmpstr); |
79072805 | 11319 | } |
8990e307 | 11320 | SvREFCNT_dec(herewas); |
2f31ce75 | 11321 | if (!IN_BYTES) { |
95a20fc0 | 11322 | if (UTF && is_utf8_string((U8*)SvPVX_const(tmpstr), SvCUR(tmpstr))) |
2f31ce75 JH |
11323 | SvUTF8_on(tmpstr); |
11324 | else if (PL_encoding) | |
11325 | sv_recode_to_utf8(tmpstr, PL_encoding); | |
11326 | } | |
3280af22 | 11327 | PL_lex_stuff = tmpstr; |
6154021b | 11328 | pl_yylval.ival = op_type; |
79072805 LW |
11329 | return s; |
11330 | } | |
11331 | ||
02aa26ce NT |
11332 | /* scan_inputsymbol |
11333 | takes: current position in input buffer | |
11334 | returns: new position in input buffer | |
6154021b | 11335 | side-effects: pl_yylval and lex_op are set. |
02aa26ce NT |
11336 | |
11337 | This code handles: | |
11338 | ||
11339 | <> read from ARGV | |
11340 | <FH> read from filehandle | |
11341 | <pkg::FH> read from package qualified filehandle | |
11342 | <pkg'FH> read from package qualified filehandle | |
11343 | <$fh> read from filehandle in $fh | |
11344 | <*.h> filename glob | |
11345 | ||
11346 | */ | |
11347 | ||
76e3520e | 11348 | STATIC char * |
cea2e8a9 | 11349 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 11350 | { |
97aff369 | 11351 | dVAR; |
02aa26ce | 11352 | register char *s = start; /* current position in buffer */ |
1b420867 | 11353 | char *end; |
79072805 LW |
11354 | I32 len; |
11355 | ||
6136c704 AL |
11356 | char *d = PL_tokenbuf; /* start of temp holding space */ |
11357 | const char * const e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
11358 | ||
1b420867 GS |
11359 | end = strchr(s, '\n'); |
11360 | if (!end) | |
11361 | end = PL_bufend; | |
11362 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
11363 | |
11364 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 11365 | or if it didn't end, or if we see a newline |
02aa26ce NT |
11366 | */ |
11367 | ||
bb7a0f54 | 11368 | if (len >= (I32)sizeof PL_tokenbuf) |
cea2e8a9 | 11369 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 11370 | if (s >= end) |
cea2e8a9 | 11371 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 11372 | |
fc36a67e | 11373 | s++; |
02aa26ce NT |
11374 | |
11375 | /* check for <$fh> | |
11376 | Remember, only scalar variables are interpreted as filehandles by | |
11377 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
11378 | treated as a glob() call. | |
11379 | This code makes use of the fact that except for the $ at the front, | |
11380 | a scalar variable and a filehandle look the same. | |
11381 | */ | |
4633a7c4 | 11382 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
11383 | |
11384 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 11385 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 11386 | d++; |
02aa26ce NT |
11387 | |
11388 | /* If we've tried to read what we allow filehandles to look like, and | |
11389 | there's still text left, then it must be a glob() and not a getline. | |
11390 | Use scan_str to pull out the stuff between the <> and treat it | |
11391 | as nothing more than a string. | |
11392 | */ | |
11393 | ||
3280af22 | 11394 | if (d - PL_tokenbuf != len) { |
6154021b | 11395 | pl_yylval.ival = OP_GLOB; |
5db06880 | 11396 | s = scan_str(start,!!PL_madskills,FALSE); |
79072805 | 11397 | if (!s) |
cea2e8a9 | 11398 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
11399 | return s; |
11400 | } | |
395c3793 | 11401 | else { |
9b3023bc | 11402 | bool readline_overriden = FALSE; |
6136c704 | 11403 | GV *gv_readline; |
9b3023bc | 11404 | GV **gvp; |
02aa26ce | 11405 | /* we're in a filehandle read situation */ |
3280af22 | 11406 | d = PL_tokenbuf; |
02aa26ce NT |
11407 | |
11408 | /* turn <> into <ARGV> */ | |
79072805 | 11409 | if (!len) |
689badd5 | 11410 | Copy("ARGV",d,5,char); |
02aa26ce | 11411 | |
9b3023bc | 11412 | /* Check whether readline() is overriden */ |
fafc274c | 11413 | gv_readline = gv_fetchpvs("readline", GV_NOTQUAL, SVt_PVCV); |
6136c704 | 11414 | if ((gv_readline |
ba979b31 | 11415 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)) |
9b3023bc | 11416 | || |
017a3ce5 | 11417 | ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE)) |
9e0d86f8 | 11418 | && (gv_readline = *gvp) && isGV_with_GP(gv_readline) |
ba979b31 | 11419 | && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))) |
9b3023bc RGS |
11420 | readline_overriden = TRUE; |
11421 | ||
02aa26ce NT |
11422 | /* if <$fh>, create the ops to turn the variable into a |
11423 | filehandle | |
11424 | */ | |
79072805 | 11425 | if (*d == '$') { |
02aa26ce NT |
11426 | /* try to find it in the pad for this block, otherwise find |
11427 | add symbol table ops | |
11428 | */ | |
bbd11bfc AL |
11429 | const PADOFFSET tmp = pad_findmy(d); |
11430 | if (tmp != NOT_IN_PAD) { | |
00b1698f | 11431 | if (PAD_COMPNAME_FLAGS_isOUR(tmp)) { |
6136c704 AL |
11432 | HV * const stash = PAD_COMPNAME_OURSTASH(tmp); |
11433 | HEK * const stashname = HvNAME_HEK(stash); | |
11434 | SV * const sym = sv_2mortal(newSVhek(stashname)); | |
396482e1 | 11435 | sv_catpvs(sym, "::"); |
f558d5af JH |
11436 | sv_catpv(sym, d+1); |
11437 | d = SvPVX(sym); | |
11438 | goto intro_sym; | |
11439 | } | |
11440 | else { | |
6136c704 | 11441 | OP * const o = newOP(OP_PADSV, 0); |
f558d5af | 11442 | o->op_targ = tmp; |
9b3023bc RGS |
11443 | PL_lex_op = readline_overriden |
11444 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11445 | append_elem(OP_LIST, o, | |
11446 | newCVREF(0, newGVOP(OP_GV,0,gv_readline)))) | |
11447 | : (OP*)newUNOP(OP_READLINE, 0, o); | |
f558d5af | 11448 | } |
a0d0e21e LW |
11449 | } |
11450 | else { | |
f558d5af JH |
11451 | GV *gv; |
11452 | ++d; | |
11453 | intro_sym: | |
11454 | gv = gv_fetchpv(d, | |
11455 | (PL_in_eval | |
11456 | ? (GV_ADDMULTI | GV_ADDINEVAL) | |
bea70d1e | 11457 | : GV_ADDMULTI), |
f558d5af | 11458 | SVt_PV); |
9b3023bc RGS |
11459 | PL_lex_op = readline_overriden |
11460 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11461 | append_elem(OP_LIST, | |
11462 | newUNOP(OP_RV2SV, 0, newGVOP(OP_GV, 0, gv)), | |
11463 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11464 | : (OP*)newUNOP(OP_READLINE, 0, | |
11465 | newUNOP(OP_RV2SV, 0, | |
11466 | newGVOP(OP_GV, 0, gv))); | |
a0d0e21e | 11467 | } |
7c6fadd6 RGS |
11468 | if (!readline_overriden) |
11469 | PL_lex_op->op_flags |= OPf_SPECIAL; | |
6154021b RGS |
11470 | /* we created the ops in PL_lex_op, so make pl_yylval.ival a null op */ |
11471 | pl_yylval.ival = OP_NULL; | |
79072805 | 11472 | } |
02aa26ce NT |
11473 | |
11474 | /* If it's none of the above, it must be a literal filehandle | |
11475 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 11476 | else { |
6136c704 | 11477 | GV * const gv = gv_fetchpv(d, GV_ADD, SVt_PVIO); |
9b3023bc RGS |
11478 | PL_lex_op = readline_overriden |
11479 | ? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED, | |
11480 | append_elem(OP_LIST, | |
11481 | newGVOP(OP_GV, 0, gv), | |
11482 | newCVREF(0, newGVOP(OP_GV, 0, gv_readline)))) | |
11483 | : (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); | |
6154021b | 11484 | pl_yylval.ival = OP_NULL; |
79072805 LW |
11485 | } |
11486 | } | |
02aa26ce | 11487 | |
79072805 LW |
11488 | return s; |
11489 | } | |
11490 | ||
02aa26ce NT |
11491 | |
11492 | /* scan_str | |
11493 | takes: start position in buffer | |
09bef843 SB |
11494 | keep_quoted preserve \ on the embedded delimiter(s) |
11495 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
11496 | returns: position to continue reading from buffer |
11497 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
11498 | updates the read buffer. | |
11499 | ||
11500 | This subroutine pulls a string out of the input. It is called for: | |
11501 | q single quotes q(literal text) | |
11502 | ' single quotes 'literal text' | |
11503 | qq double quotes qq(interpolate $here please) | |
11504 | " double quotes "interpolate $here please" | |
11505 | qx backticks qx(/bin/ls -l) | |
11506 | ` backticks `/bin/ls -l` | |
11507 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
11508 | m// regexp match m/this/ | |
11509 | s/// regexp substitute s/this/that/ | |
11510 | tr/// string transliterate tr/this/that/ | |
11511 | y/// string transliterate y/this/that/ | |
11512 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 11513 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
11514 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
11515 | ||
11516 | In most of these cases (all but <>, patterns and transliterate) | |
11517 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
11518 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
11519 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
11520 | calls scan_str(). | |
4e553d73 | 11521 | |
02aa26ce NT |
11522 | It skips whitespace before the string starts, and treats the first |
11523 | character as the delimiter. If the delimiter is one of ([{< then | |
11524 | the corresponding "close" character )]}> is used as the closing | |
11525 | delimiter. It allows quoting of delimiters, and if the string has | |
11526 | balanced delimiters ([{<>}]) it allows nesting. | |
11527 | ||
37fd879b HS |
11528 | On success, the SV with the resulting string is put into lex_stuff or, |
11529 | if that is already non-NULL, into lex_repl. The second case occurs only | |
11530 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
11531 | For convenience, the terminating delimiter character is stuffed into | |
11532 | SvIVX of the SV. | |
02aa26ce NT |
11533 | */ |
11534 | ||
76e3520e | 11535 | STATIC char * |
09bef843 | 11536 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 11537 | { |
97aff369 | 11538 | dVAR; |
02aa26ce | 11539 | SV *sv; /* scalar value: string */ |
d3fcec1f | 11540 | const char *tmps; /* temp string, used for delimiter matching */ |
02aa26ce NT |
11541 | register char *s = start; /* current position in the buffer */ |
11542 | register char term; /* terminating character */ | |
11543 | register char *to; /* current position in the sv's data */ | |
11544 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 11545 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
220e2d4e | 11546 | I32 termcode; /* terminating char. code */ |
89ebb4a3 | 11547 | U8 termstr[UTF8_MAXBYTES]; /* terminating string */ |
220e2d4e | 11548 | STRLEN termlen; /* length of terminating string */ |
0331ef07 | 11549 | int last_off = 0; /* last position for nesting bracket */ |
5db06880 NC |
11550 | #ifdef PERL_MAD |
11551 | int stuffstart; | |
11552 | char *tstart; | |
11553 | #endif | |
02aa26ce NT |
11554 | |
11555 | /* skip space before the delimiter */ | |
29595ff2 NC |
11556 | if (isSPACE(*s)) { |
11557 | s = PEEKSPACE(s); | |
11558 | } | |
02aa26ce | 11559 | |
5db06880 | 11560 | #ifdef PERL_MAD |
cd81e915 NC |
11561 | if (PL_realtokenstart >= 0) { |
11562 | stuffstart = PL_realtokenstart; | |
11563 | PL_realtokenstart = -1; | |
5db06880 NC |
11564 | } |
11565 | else | |
11566 | stuffstart = start - SvPVX(PL_linestr); | |
11567 | #endif | |
02aa26ce | 11568 | /* mark where we are, in case we need to report errors */ |
79072805 | 11569 | CLINE; |
02aa26ce NT |
11570 | |
11571 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 11572 | term = *s; |
220e2d4e IH |
11573 | if (!UTF) { |
11574 | termcode = termstr[0] = term; | |
11575 | termlen = 1; | |
11576 | } | |
11577 | else { | |
f3b9ce0f | 11578 | termcode = utf8_to_uvchr((U8*)s, &termlen); |
220e2d4e IH |
11579 | Copy(s, termstr, termlen, U8); |
11580 | if (!UTF8_IS_INVARIANT(term)) | |
11581 | has_utf8 = TRUE; | |
11582 | } | |
b1c7b182 | 11583 | |
02aa26ce | 11584 | /* mark where we are */ |
57843af0 | 11585 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 11586 | PL_multi_open = term; |
02aa26ce NT |
11587 | |
11588 | /* find corresponding closing delimiter */ | |
93a17b20 | 11589 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
220e2d4e IH |
11590 | termcode = termstr[0] = term = tmps[5]; |
11591 | ||
3280af22 | 11592 | PL_multi_close = term; |
79072805 | 11593 | |
561b68a9 SH |
11594 | /* create a new SV to hold the contents. 79 is the SV's initial length. |
11595 | What a random number. */ | |
7d0a29fe NC |
11596 | sv = newSV_type(SVt_PVIV); |
11597 | SvGROW(sv, 80); | |
45977657 | 11598 | SvIV_set(sv, termcode); |
a0d0e21e | 11599 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
11600 | |
11601 | /* move past delimiter and try to read a complete string */ | |
09bef843 | 11602 | if (keep_delims) |
220e2d4e IH |
11603 | sv_catpvn(sv, s, termlen); |
11604 | s += termlen; | |
5db06880 NC |
11605 | #ifdef PERL_MAD |
11606 | tstart = SvPVX(PL_linestr) + stuffstart; | |
cd81e915 NC |
11607 | if (!PL_thisopen && !keep_delims) { |
11608 | PL_thisopen = newSVpvn(tstart, s - tstart); | |
5db06880 NC |
11609 | stuffstart = s - SvPVX(PL_linestr); |
11610 | } | |
11611 | #endif | |
93a17b20 | 11612 | for (;;) { |
220e2d4e IH |
11613 | if (PL_encoding && !UTF) { |
11614 | bool cont = TRUE; | |
11615 | ||
11616 | while (cont) { | |
95a20fc0 | 11617 | int offset = s - SvPVX_const(PL_linestr); |
66a1b24b | 11618 | const bool found = sv_cat_decode(sv, PL_encoding, PL_linestr, |
f3b9ce0f | 11619 | &offset, (char*)termstr, termlen); |
6136c704 AL |
11620 | const char * const ns = SvPVX_const(PL_linestr) + offset; |
11621 | char * const svlast = SvEND(sv) - 1; | |
220e2d4e IH |
11622 | |
11623 | for (; s < ns; s++) { | |
11624 | if (*s == '\n' && !PL_rsfp) | |
11625 | CopLINE_inc(PL_curcop); | |
11626 | } | |
11627 | if (!found) | |
11628 | goto read_more_line; | |
11629 | else { | |
11630 | /* handle quoted delimiters */ | |
52327caf | 11631 | if (SvCUR(sv) > 1 && *(svlast-1) == '\\') { |
f54cb97a | 11632 | const char *t; |
95a20fc0 | 11633 | for (t = svlast-2; t >= SvPVX_const(sv) && *t == '\\';) |
220e2d4e IH |
11634 | t--; |
11635 | if ((svlast-1 - t) % 2) { | |
11636 | if (!keep_quoted) { | |
11637 | *(svlast-1) = term; | |
11638 | *svlast = '\0'; | |
11639 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11640 | } | |
11641 | continue; | |
11642 | } | |
11643 | } | |
11644 | if (PL_multi_open == PL_multi_close) { | |
11645 | cont = FALSE; | |
11646 | } | |
11647 | else { | |
f54cb97a AL |
11648 | const char *t; |
11649 | char *w; | |
0331ef07 | 11650 | for (t = w = SvPVX(sv)+last_off; t < svlast; w++, t++) { |
220e2d4e IH |
11651 | /* At here, all closes are "was quoted" one, |
11652 | so we don't check PL_multi_close. */ | |
11653 | if (*t == '\\') { | |
11654 | if (!keep_quoted && *(t+1) == PL_multi_open) | |
11655 | t++; | |
11656 | else | |
11657 | *w++ = *t++; | |
11658 | } | |
11659 | else if (*t == PL_multi_open) | |
11660 | brackets++; | |
11661 | ||
11662 | *w = *t; | |
11663 | } | |
11664 | if (w < t) { | |
11665 | *w++ = term; | |
11666 | *w = '\0'; | |
95a20fc0 | 11667 | SvCUR_set(sv, w - SvPVX_const(sv)); |
220e2d4e | 11668 | } |
0331ef07 | 11669 | last_off = w - SvPVX(sv); |
220e2d4e IH |
11670 | if (--brackets <= 0) |
11671 | cont = FALSE; | |
11672 | } | |
11673 | } | |
11674 | } | |
11675 | if (!keep_delims) { | |
11676 | SvCUR_set(sv, SvCUR(sv) - 1); | |
11677 | *SvEND(sv) = '\0'; | |
11678 | } | |
11679 | break; | |
11680 | } | |
11681 | ||
02aa26ce | 11682 | /* extend sv if need be */ |
3280af22 | 11683 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 11684 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 11685 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 11686 | |
02aa26ce | 11687 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
11688 | if (PL_multi_open == PL_multi_close) { |
11689 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 11690 | /* embedded newlines increment the current line number */ |
3280af22 | 11691 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11692 | CopLINE_inc(PL_curcop); |
02aa26ce | 11693 | /* handle quoted delimiters */ |
3280af22 | 11694 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 11695 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 11696 | s++; |
02aa26ce | 11697 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
11698 | else |
11699 | *to++ = *s++; | |
11700 | } | |
02aa26ce NT |
11701 | /* terminate when run out of buffer (the for() condition), or |
11702 | have found the terminator */ | |
220e2d4e IH |
11703 | else if (*s == term) { |
11704 | if (termlen == 1) | |
11705 | break; | |
f3b9ce0f | 11706 | if (s+termlen <= PL_bufend && memEQ(s, (char*)termstr, termlen)) |
220e2d4e IH |
11707 | break; |
11708 | } | |
63cd0674 | 11709 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11710 | has_utf8 = TRUE; |
93a17b20 LW |
11711 | *to = *s; |
11712 | } | |
11713 | } | |
02aa26ce NT |
11714 | |
11715 | /* if the terminator isn't the same as the start character (e.g., | |
11716 | matched brackets), we have to allow more in the quoting, and | |
11717 | be prepared for nested brackets. | |
11718 | */ | |
93a17b20 | 11719 | else { |
02aa26ce | 11720 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 11721 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 11722 | /* embedded newlines increment the line count */ |
3280af22 | 11723 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 11724 | CopLINE_inc(PL_curcop); |
02aa26ce | 11725 | /* backslashes can escape the open or closing characters */ |
3280af22 | 11726 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
11727 | if (!keep_quoted && |
11728 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
11729 | s++; |
11730 | else | |
11731 | *to++ = *s++; | |
11732 | } | |
02aa26ce | 11733 | /* allow nested opens and closes */ |
3280af22 | 11734 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 11735 | break; |
3280af22 | 11736 | else if (*s == PL_multi_open) |
93a17b20 | 11737 | brackets++; |
63cd0674 | 11738 | else if (!has_utf8 && !UTF8_IS_INVARIANT((U8)*s) && UTF) |
89491803 | 11739 | has_utf8 = TRUE; |
93a17b20 LW |
11740 | *to = *s; |
11741 | } | |
11742 | } | |
02aa26ce | 11743 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 11744 | *to = '\0'; |
95a20fc0 | 11745 | SvCUR_set(sv, to - SvPVX_const(sv)); |
93a17b20 | 11746 | |
02aa26ce NT |
11747 | /* |
11748 | * this next chunk reads more into the buffer if we're not done yet | |
11749 | */ | |
11750 | ||
b1c7b182 GS |
11751 | if (s < PL_bufend) |
11752 | break; /* handle case where we are done yet :-) */ | |
79072805 | 11753 | |
6a27c188 | 11754 | #ifndef PERL_STRICT_CR |
95a20fc0 | 11755 | if (to - SvPVX_const(sv) >= 2) { |
c6f14548 GS |
11756 | if ((to[-2] == '\r' && to[-1] == '\n') || |
11757 | (to[-2] == '\n' && to[-1] == '\r')) | |
11758 | { | |
f63a84b2 LW |
11759 | to[-2] = '\n'; |
11760 | to--; | |
95a20fc0 | 11761 | SvCUR_set(sv, to - SvPVX_const(sv)); |
f63a84b2 LW |
11762 | } |
11763 | else if (to[-1] == '\r') | |
11764 | to[-1] = '\n'; | |
11765 | } | |
95a20fc0 | 11766 | else if (to - SvPVX_const(sv) == 1 && to[-1] == '\r') |
f63a84b2 LW |
11767 | to[-1] = '\n'; |
11768 | #endif | |
11769 | ||
220e2d4e | 11770 | read_more_line: |
02aa26ce NT |
11771 | /* if we're out of file, or a read fails, bail and reset the current |
11772 | line marker so we can report where the unterminated string began | |
11773 | */ | |
5db06880 NC |
11774 | #ifdef PERL_MAD |
11775 | if (PL_madskills) { | |
c35e046a | 11776 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
cd81e915 NC |
11777 | if (PL_thisstuff) |
11778 | sv_catpvn(PL_thisstuff, tstart, PL_bufend - tstart); | |
5db06880 | 11779 | else |
cd81e915 | 11780 | PL_thisstuff = newSVpvn(tstart, PL_bufend - tstart); |
5db06880 NC |
11781 | } |
11782 | #endif | |
3280af22 NIS |
11783 | if (!PL_rsfp || |
11784 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { | |
c07a80fd | 11785 | sv_free(sv); |
eb160463 | 11786 | CopLINE_set(PL_curcop, (line_t)PL_multi_start); |
bd61b366 | 11787 | return NULL; |
79072805 | 11788 | } |
5db06880 NC |
11789 | #ifdef PERL_MAD |
11790 | stuffstart = 0; | |
11791 | #endif | |
02aa26ce | 11792 | /* we read a line, so increment our line counter */ |
57843af0 | 11793 | CopLINE_inc(PL_curcop); |
a0ed51b3 | 11794 | |
02aa26ce | 11795 | /* update debugger info */ |
80a702cd | 11796 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
5fa550fb | 11797 | update_debugger_info(PL_linestr, NULL, 0); |
a0ed51b3 | 11798 | |
3280af22 NIS |
11799 | /* having changed the buffer, we must update PL_bufend */ |
11800 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
bd61b366 | 11801 | PL_last_lop = PL_last_uni = NULL; |
378cc40b | 11802 | } |
4e553d73 | 11803 | |
02aa26ce NT |
11804 | /* at this point, we have successfully read the delimited string */ |
11805 | ||
220e2d4e | 11806 | if (!PL_encoding || UTF) { |
5db06880 NC |
11807 | #ifdef PERL_MAD |
11808 | if (PL_madskills) { | |
c35e046a | 11809 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
29522234 | 11810 | const int len = s - tstart; |
cd81e915 | 11811 | if (PL_thisstuff) |
c35e046a | 11812 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11813 | else |
c35e046a | 11814 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11815 | if (!PL_thisclose && !keep_delims) |
11816 | PL_thisclose = newSVpvn(s,termlen); | |
5db06880 NC |
11817 | } |
11818 | #endif | |
11819 | ||
220e2d4e IH |
11820 | if (keep_delims) |
11821 | sv_catpvn(sv, s, termlen); | |
11822 | s += termlen; | |
11823 | } | |
5db06880 NC |
11824 | #ifdef PERL_MAD |
11825 | else { | |
11826 | if (PL_madskills) { | |
c35e046a AL |
11827 | char * const tstart = SvPVX(PL_linestr) + stuffstart; |
11828 | const int len = s - tstart - termlen; | |
cd81e915 | 11829 | if (PL_thisstuff) |
c35e046a | 11830 | sv_catpvn(PL_thisstuff, tstart, len); |
5db06880 | 11831 | else |
c35e046a | 11832 | PL_thisstuff = newSVpvn(tstart, len); |
cd81e915 NC |
11833 | if (!PL_thisclose && !keep_delims) |
11834 | PL_thisclose = newSVpvn(s - termlen,termlen); | |
5db06880 NC |
11835 | } |
11836 | } | |
11837 | #endif | |
220e2d4e | 11838 | if (has_utf8 || PL_encoding) |
b1c7b182 | 11839 | SvUTF8_on(sv); |
d0063567 | 11840 | |
57843af0 | 11841 | PL_multi_end = CopLINE(PL_curcop); |
02aa26ce NT |
11842 | |
11843 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
11844 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
11845 | SvLEN_set(sv, SvCUR(sv) + 1); | |
b7e9a5c2 | 11846 | SvPV_renew(sv, SvLEN(sv)); |
79072805 | 11847 | } |
02aa26ce NT |
11848 | |
11849 | /* decide whether this is the first or second quoted string we've read | |
11850 | for this op | |
11851 | */ | |
4e553d73 | 11852 | |
3280af22 NIS |
11853 | if (PL_lex_stuff) |
11854 | PL_lex_repl = sv; | |
79072805 | 11855 | else |
3280af22 | 11856 | PL_lex_stuff = sv; |
378cc40b LW |
11857 | return s; |
11858 | } | |
11859 | ||
02aa26ce NT |
11860 | /* |
11861 | scan_num | |
11862 | takes: pointer to position in buffer | |
11863 | returns: pointer to new position in buffer | |
6154021b | 11864 | side-effects: builds ops for the constant in pl_yylval.op |
02aa26ce NT |
11865 | |
11866 | Read a number in any of the formats that Perl accepts: | |
11867 | ||
7fd134d9 JH |
11868 | \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12. |
11869 | \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34 | |
24138b49 JH |
11870 | 0b[01](_?[01])* |
11871 | 0[0-7](_?[0-7])* | |
11872 | 0x[0-9A-Fa-f](_?[0-9A-Fa-f])* | |
02aa26ce | 11873 | |
3280af22 | 11874 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
11875 | thing it reads. |
11876 | ||
11877 | If it reads a number without a decimal point or an exponent, it will | |
11878 | try converting the number to an integer and see if it can do so | |
11879 | without loss of precision. | |
11880 | */ | |
4e553d73 | 11881 | |
378cc40b | 11882 | char * |
bfed75c6 | 11883 | Perl_scan_num(pTHX_ const char *start, YYSTYPE* lvalp) |
378cc40b | 11884 | { |
97aff369 | 11885 | dVAR; |
bfed75c6 | 11886 | register const char *s = start; /* current position in buffer */ |
02aa26ce NT |
11887 | register char *d; /* destination in temp buffer */ |
11888 | register char *e; /* end of temp buffer */ | |
86554af2 | 11889 | NV nv; /* number read, as a double */ |
a0714e2c | 11890 | SV *sv = NULL; /* place to put the converted number */ |
a86a20aa | 11891 | bool floatit; /* boolean: int or float? */ |
cbbf8932 | 11892 | const char *lastub = NULL; /* position of last underbar */ |
bfed75c6 | 11893 | static char const number_too_long[] = "Number too long"; |
378cc40b | 11894 | |
02aa26ce NT |
11895 | /* We use the first character to decide what type of number this is */ |
11896 | ||
378cc40b | 11897 | switch (*s) { |
79072805 | 11898 | default: |
cea2e8a9 | 11899 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 11900 | |
02aa26ce | 11901 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 11902 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
11903 | case '0': |
11904 | { | |
02aa26ce NT |
11905 | /* variables: |
11906 | u holds the "number so far" | |
4f19785b WSI |
11907 | shift the power of 2 of the base |
11908 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
11909 | overflowed was the number more than we can hold? |
11910 | ||
11911 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
11912 | we in octal/hex/binary?" indicator to disallow hex characters |
11913 | when in octal mode. | |
02aa26ce | 11914 | */ |
9e24b6e2 JH |
11915 | NV n = 0.0; |
11916 | UV u = 0; | |
79072805 | 11917 | I32 shift; |
9e24b6e2 | 11918 | bool overflowed = FALSE; |
61f33854 | 11919 | bool just_zero = TRUE; /* just plain 0 or binary number? */ |
27da23d5 JH |
11920 | static const NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; |
11921 | static const char* const bases[5] = | |
11922 | { "", "binary", "", "octal", "hexadecimal" }; | |
11923 | static const char* const Bases[5] = | |
11924 | { "", "Binary", "", "Octal", "Hexadecimal" }; | |
11925 | static const char* const maxima[5] = | |
11926 | { "", | |
11927 | "0b11111111111111111111111111111111", | |
11928 | "", | |
11929 | "037777777777", | |
11930 | "0xffffffff" }; | |
bfed75c6 | 11931 | const char *base, *Base, *max; |
378cc40b | 11932 | |
02aa26ce | 11933 | /* check for hex */ |
378cc40b LW |
11934 | if (s[1] == 'x') { |
11935 | shift = 4; | |
11936 | s += 2; | |
61f33854 | 11937 | just_zero = FALSE; |
4f19785b WSI |
11938 | } else if (s[1] == 'b') { |
11939 | shift = 1; | |
11940 | s += 2; | |
61f33854 | 11941 | just_zero = FALSE; |
378cc40b | 11942 | } |
02aa26ce | 11943 | /* check for a decimal in disguise */ |
b78218b7 | 11944 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 11945 | goto decimal; |
02aa26ce | 11946 | /* so it must be octal */ |
928753ea | 11947 | else { |
378cc40b | 11948 | shift = 3; |
928753ea JH |
11949 | s++; |
11950 | } | |
11951 | ||
11952 | if (*s == '_') { | |
11953 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 11954 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11955 | "Misplaced _ in number"); |
11956 | lastub = s++; | |
11957 | } | |
9e24b6e2 JH |
11958 | |
11959 | base = bases[shift]; | |
11960 | Base = Bases[shift]; | |
11961 | max = maxima[shift]; | |
02aa26ce | 11962 | |
4f19785b | 11963 | /* read the rest of the number */ |
378cc40b | 11964 | for (;;) { |
9e24b6e2 | 11965 | /* x is used in the overflow test, |
893fe2c2 | 11966 | b is the digit we're adding on. */ |
9e24b6e2 | 11967 | UV x, b; |
55497cff | 11968 | |
378cc40b | 11969 | switch (*s) { |
02aa26ce NT |
11970 | |
11971 | /* if we don't mention it, we're done */ | |
378cc40b LW |
11972 | default: |
11973 | goto out; | |
02aa26ce | 11974 | |
928753ea | 11975 | /* _ are ignored -- but warned about if consecutive */ |
de3bb511 | 11976 | case '_': |
041457d9 | 11977 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 11978 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
11979 | "Misplaced _ in number"); |
11980 | lastub = s++; | |
de3bb511 | 11981 | break; |
02aa26ce NT |
11982 | |
11983 | /* 8 and 9 are not octal */ | |
378cc40b | 11984 | case '8': case '9': |
4f19785b | 11985 | if (shift == 3) |
cea2e8a9 | 11986 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 11987 | /* FALL THROUGH */ |
02aa26ce NT |
11988 | |
11989 | /* octal digits */ | |
4f19785b | 11990 | case '2': case '3': case '4': |
378cc40b | 11991 | case '5': case '6': case '7': |
4f19785b | 11992 | if (shift == 1) |
cea2e8a9 | 11993 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
11994 | /* FALL THROUGH */ |
11995 | ||
11996 | case '0': case '1': | |
02aa26ce | 11997 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 11998 | goto digit; |
02aa26ce NT |
11999 | |
12000 | /* hex digits */ | |
378cc40b LW |
12001 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
12002 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 12003 | /* make sure they said 0x */ |
378cc40b LW |
12004 | if (shift != 4) |
12005 | goto out; | |
55497cff | 12006 | b = (*s++ & 7) + 9; |
02aa26ce NT |
12007 | |
12008 | /* Prepare to put the digit we have onto the end | |
12009 | of the number so far. We check for overflows. | |
12010 | */ | |
12011 | ||
55497cff | 12012 | digit: |
61f33854 | 12013 | just_zero = FALSE; |
9e24b6e2 JH |
12014 | if (!overflowed) { |
12015 | x = u << shift; /* make room for the digit */ | |
12016 | ||
12017 | if ((x >> shift) != u | |
12018 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
12019 | overflowed = TRUE; |
12020 | n = (NV) u; | |
767a6a26 | 12021 | if (ckWARN_d(WARN_OVERFLOW)) |
9014280d | 12022 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), |
9e24b6e2 JH |
12023 | "Integer overflow in %s number", |
12024 | base); | |
12025 | } else | |
12026 | u = x | b; /* add the digit to the end */ | |
12027 | } | |
12028 | if (overflowed) { | |
12029 | n *= nvshift[shift]; | |
12030 | /* If an NV has not enough bits in its | |
12031 | * mantissa to represent an UV this summing of | |
12032 | * small low-order numbers is a waste of time | |
12033 | * (because the NV cannot preserve the | |
12034 | * low-order bits anyway): we could just | |
12035 | * remember when did we overflow and in the | |
12036 | * end just multiply n by the right | |
12037 | * amount. */ | |
12038 | n += (NV) b; | |
55497cff | 12039 | } |
378cc40b LW |
12040 | break; |
12041 | } | |
12042 | } | |
02aa26ce NT |
12043 | |
12044 | /* if we get here, we had success: make a scalar value from | |
12045 | the number. | |
12046 | */ | |
378cc40b | 12047 | out: |
928753ea JH |
12048 | |
12049 | /* final misplaced underbar check */ | |
12050 | if (s[-1] == '_') { | |
12051 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12052 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
928753ea JH |
12053 | } |
12054 | ||
561b68a9 | 12055 | sv = newSV(0); |
9e24b6e2 | 12056 | if (overflowed) { |
041457d9 | 12057 | if (n > 4294967295.0 && ckWARN(WARN_PORTABLE)) |
9014280d | 12058 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
12059 | "%s number > %s non-portable", |
12060 | Base, max); | |
12061 | sv_setnv(sv, n); | |
12062 | } | |
12063 | else { | |
15041a67 | 12064 | #if UVSIZE > 4 |
041457d9 | 12065 | if (u > 0xffffffff && ckWARN(WARN_PORTABLE)) |
9014280d | 12066 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
9e24b6e2 JH |
12067 | "%s number > %s non-portable", |
12068 | Base, max); | |
2cc4c2dc | 12069 | #endif |
9e24b6e2 JH |
12070 | sv_setuv(sv, u); |
12071 | } | |
61f33854 | 12072 | if (just_zero && (PL_hints & HINT_NEW_INTEGER)) |
bfed75c6 | 12073 | sv = new_constant(start, s - start, "integer", |
eb0d8d16 | 12074 | sv, NULL, NULL, 0); |
61f33854 | 12075 | else if (PL_hints & HINT_NEW_BINARY) |
eb0d8d16 | 12076 | sv = new_constant(start, s - start, "binary", sv, NULL, NULL, 0); |
378cc40b LW |
12077 | } |
12078 | break; | |
02aa26ce NT |
12079 | |
12080 | /* | |
12081 | handle decimal numbers. | |
12082 | we're also sent here when we read a 0 as the first digit | |
12083 | */ | |
378cc40b LW |
12084 | case '1': case '2': case '3': case '4': case '5': |
12085 | case '6': case '7': case '8': case '9': case '.': | |
12086 | decimal: | |
3280af22 NIS |
12087 | d = PL_tokenbuf; |
12088 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 12089 | floatit = FALSE; |
02aa26ce NT |
12090 | |
12091 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 12092 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 12093 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
12094 | if -w is on |
12095 | */ | |
93a17b20 | 12096 | if (*s == '_') { |
041457d9 | 12097 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12098 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12099 | "Misplaced _ in number"); |
12100 | lastub = s++; | |
93a17b20 | 12101 | } |
fc36a67e | 12102 | else { |
02aa26ce | 12103 | /* check for end of fixed-length buffer */ |
fc36a67e | 12104 | if (d >= e) |
cea2e8a9 | 12105 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 12106 | /* if we're ok, copy the character */ |
378cc40b | 12107 | *d++ = *s++; |
fc36a67e | 12108 | } |
378cc40b | 12109 | } |
02aa26ce NT |
12110 | |
12111 | /* final misplaced underbar check */ | |
928753ea | 12112 | if (lastub && s == lastub + 1) { |
d008e5eb | 12113 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 12114 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Misplaced _ in number"); |
d008e5eb | 12115 | } |
02aa26ce NT |
12116 | |
12117 | /* read a decimal portion if there is one. avoid | |
12118 | 3..5 being interpreted as the number 3. followed | |
12119 | by .5 | |
12120 | */ | |
2f3197b3 | 12121 | if (*s == '.' && s[1] != '.') { |
79072805 | 12122 | floatit = TRUE; |
378cc40b | 12123 | *d++ = *s++; |
02aa26ce | 12124 | |
928753ea JH |
12125 | if (*s == '_') { |
12126 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12127 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12128 | "Misplaced _ in number"); |
12129 | lastub = s; | |
12130 | } | |
12131 | ||
12132 | /* copy, ignoring underbars, until we run out of digits. | |
02aa26ce | 12133 | */ |
fc36a67e | 12134 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 12135 | /* fixed length buffer check */ |
fc36a67e | 12136 | if (d >= e) |
cea2e8a9 | 12137 | Perl_croak(aTHX_ number_too_long); |
928753ea | 12138 | if (*s == '_') { |
041457d9 | 12139 | if (lastub && s == lastub + 1 && ckWARN(WARN_SYNTAX)) |
9014280d | 12140 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12141 | "Misplaced _ in number"); |
12142 | lastub = s; | |
12143 | } | |
12144 | else | |
fc36a67e | 12145 | *d++ = *s; |
378cc40b | 12146 | } |
928753ea JH |
12147 | /* fractional part ending in underbar? */ |
12148 | if (s[-1] == '_') { | |
12149 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12150 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
928753ea JH |
12151 | "Misplaced _ in number"); |
12152 | } | |
dd629d5b GS |
12153 | if (*s == '.' && isDIGIT(s[1])) { |
12154 | /* oops, it's really a v-string, but without the "v" */ | |
f4758303 | 12155 | s = start; |
dd629d5b GS |
12156 | goto vstring; |
12157 | } | |
378cc40b | 12158 | } |
02aa26ce NT |
12159 | |
12160 | /* read exponent part, if present */ | |
3792a11b | 12161 | if ((*s == 'e' || *s == 'E') && strchr("+-0123456789_", s[1])) { |
79072805 LW |
12162 | floatit = TRUE; |
12163 | s++; | |
02aa26ce NT |
12164 | |
12165 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 12166 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce | 12167 | |
7fd134d9 JH |
12168 | /* stray preinitial _ */ |
12169 | if (*s == '_') { | |
12170 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12171 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12172 | "Misplaced _ in number"); |
12173 | lastub = s++; | |
12174 | } | |
12175 | ||
02aa26ce | 12176 | /* allow positive or negative exponent */ |
378cc40b LW |
12177 | if (*s == '+' || *s == '-') |
12178 | *d++ = *s++; | |
02aa26ce | 12179 | |
7fd134d9 JH |
12180 | /* stray initial _ */ |
12181 | if (*s == '_') { | |
12182 | if (ckWARN(WARN_SYNTAX)) | |
9014280d | 12183 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 JH |
12184 | "Misplaced _ in number"); |
12185 | lastub = s++; | |
12186 | } | |
12187 | ||
7fd134d9 JH |
12188 | /* read digits of exponent */ |
12189 | while (isDIGIT(*s) || *s == '_') { | |
12190 | if (isDIGIT(*s)) { | |
12191 | if (d >= e) | |
12192 | Perl_croak(aTHX_ number_too_long); | |
b3b48e3e | 12193 | *d++ = *s++; |
7fd134d9 JH |
12194 | } |
12195 | else { | |
041457d9 DM |
12196 | if (((lastub && s == lastub + 1) || |
12197 | (!isDIGIT(s[1]) && s[1] != '_')) | |
12198 | && ckWARN(WARN_SYNTAX)) | |
9014280d | 12199 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), |
7fd134d9 | 12200 | "Misplaced _ in number"); |
b3b48e3e | 12201 | lastub = s++; |
7fd134d9 | 12202 | } |
7fd134d9 | 12203 | } |
378cc40b | 12204 | } |
02aa26ce | 12205 | |
02aa26ce NT |
12206 | |
12207 | /* make an sv from the string */ | |
561b68a9 | 12208 | sv = newSV(0); |
097ee67d | 12209 | |
0b7fceb9 | 12210 | /* |
58bb9ec3 NC |
12211 | We try to do an integer conversion first if no characters |
12212 | indicating "float" have been found. | |
0b7fceb9 MU |
12213 | */ |
12214 | ||
12215 | if (!floatit) { | |
58bb9ec3 | 12216 | UV uv; |
6136c704 | 12217 | const int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv); |
58bb9ec3 NC |
12218 | |
12219 | if (flags == IS_NUMBER_IN_UV) { | |
12220 | if (uv <= IV_MAX) | |
86554af2 | 12221 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ |
58bb9ec3 | 12222 | else |
c239479b | 12223 | sv_setuv(sv, uv); |
58bb9ec3 NC |
12224 | } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) { |
12225 | if (uv <= (UV) IV_MIN) | |
12226 | sv_setiv(sv, -(IV)uv); | |
12227 | else | |
12228 | floatit = TRUE; | |
12229 | } else | |
12230 | floatit = TRUE; | |
12231 | } | |
0b7fceb9 | 12232 | if (floatit) { |
58bb9ec3 NC |
12233 | /* terminate the string */ |
12234 | *d = '\0'; | |
86554af2 JH |
12235 | nv = Atof(PL_tokenbuf); |
12236 | sv_setnv(sv, nv); | |
12237 | } | |
86554af2 | 12238 | |
eb0d8d16 NC |
12239 | if ( floatit |
12240 | ? (PL_hints & HINT_NEW_FLOAT) : (PL_hints & HINT_NEW_INTEGER) ) { | |
12241 | const char *const key = floatit ? "float" : "integer"; | |
12242 | const STRLEN keylen = floatit ? 5 : 7; | |
12243 | sv = S_new_constant(aTHX_ PL_tokenbuf, d - PL_tokenbuf, | |
12244 | key, keylen, sv, NULL, NULL, 0); | |
12245 | } | |
378cc40b | 12246 | break; |
0b7fceb9 | 12247 | |
e312add1 | 12248 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 12249 | case 'v': |
dd629d5b | 12250 | vstring: |
561b68a9 | 12251 | sv = newSV(5); /* preallocate storage space */ |
65b06e02 | 12252 | s = scan_vstring(s, PL_bufend, sv); |
a7cb1f99 | 12253 | break; |
79072805 | 12254 | } |
a687059c | 12255 | |
02aa26ce NT |
12256 | /* make the op for the constant and return */ |
12257 | ||
a86a20aa | 12258 | if (sv) |
b73d6f50 | 12259 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 12260 | else |
5f66b61c | 12261 | lvalp->opval = NULL; |
a687059c | 12262 | |
73d840c0 | 12263 | return (char *)s; |
378cc40b LW |
12264 | } |
12265 | ||
76e3520e | 12266 | STATIC char * |
cea2e8a9 | 12267 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 12268 | { |
97aff369 | 12269 | dVAR; |
79072805 | 12270 | register char *eol; |
378cc40b | 12271 | register char *t; |
6136c704 | 12272 | SV * const stuff = newSVpvs(""); |
79072805 | 12273 | bool needargs = FALSE; |
c5ee2135 | 12274 | bool eofmt = FALSE; |
5db06880 NC |
12275 | #ifdef PERL_MAD |
12276 | char *tokenstart = s; | |
12277 | SV* savewhite; | |
12278 | ||
12279 | if (PL_madskills) { | |
cd81e915 NC |
12280 | savewhite = PL_thiswhite; |
12281 | PL_thiswhite = 0; | |
5db06880 NC |
12282 | } |
12283 | #endif | |
378cc40b | 12284 | |
79072805 | 12285 | while (!needargs) { |
a1b95068 | 12286 | if (*s == '.') { |
c35e046a | 12287 | t = s+1; |
51882d45 | 12288 | #ifdef PERL_STRICT_CR |
c35e046a AL |
12289 | while (SPACE_OR_TAB(*t)) |
12290 | t++; | |
51882d45 | 12291 | #else |
c35e046a AL |
12292 | while (SPACE_OR_TAB(*t) || *t == '\r') |
12293 | t++; | |
51882d45 | 12294 | #endif |
c5ee2135 WL |
12295 | if (*t == '\n' || t == PL_bufend) { |
12296 | eofmt = TRUE; | |
79072805 | 12297 | break; |
c5ee2135 | 12298 | } |
79072805 | 12299 | } |
3280af22 | 12300 | if (PL_in_eval && !PL_rsfp) { |
07409e01 | 12301 | eol = (char *) memchr(s,'\n',PL_bufend-s); |
0f85fab0 | 12302 | if (!eol++) |
3280af22 | 12303 | eol = PL_bufend; |
0f85fab0 LW |
12304 | } |
12305 | else | |
3280af22 | 12306 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 12307 | if (*s != '#') { |
a0d0e21e LW |
12308 | for (t = s; t < eol; t++) { |
12309 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
12310 | needargs = FALSE; | |
12311 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 12312 | } |
a0d0e21e LW |
12313 | if (*t == '@' || *t == '^') |
12314 | needargs = TRUE; | |
378cc40b | 12315 | } |
7121b347 MG |
12316 | if (eol > s) { |
12317 | sv_catpvn(stuff, s, eol-s); | |
2dc4c65b | 12318 | #ifndef PERL_STRICT_CR |
7121b347 MG |
12319 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { |
12320 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
12321 | end[-2] = '\n'; | |
12322 | end[-1] = '\0'; | |
b162af07 | 12323 | SvCUR_set(stuff, SvCUR(stuff) - 1); |
7121b347 | 12324 | } |
2dc4c65b | 12325 | #endif |
7121b347 MG |
12326 | } |
12327 | else | |
12328 | break; | |
79072805 | 12329 | } |
95a20fc0 | 12330 | s = (char*)eol; |
3280af22 | 12331 | if (PL_rsfp) { |
5db06880 NC |
12332 | #ifdef PERL_MAD |
12333 | if (PL_madskills) { | |
cd81e915 NC |
12334 | if (PL_thistoken) |
12335 | sv_catpvn(PL_thistoken, tokenstart, PL_bufend - tokenstart); | |
5db06880 | 12336 | else |
cd81e915 | 12337 | PL_thistoken = newSVpvn(tokenstart, PL_bufend - tokenstart); |
5db06880 NC |
12338 | } |
12339 | #endif | |
3280af22 | 12340 | s = filter_gets(PL_linestr, PL_rsfp, 0); |
5db06880 NC |
12341 | #ifdef PERL_MAD |
12342 | tokenstart = PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
12343 | #else | |
3280af22 | 12344 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); |
5db06880 | 12345 | #endif |
3280af22 | 12346 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); |
bd61b366 | 12347 | PL_last_lop = PL_last_uni = NULL; |
79072805 | 12348 | if (!s) { |
3280af22 | 12349 | s = PL_bufptr; |
378cc40b LW |
12350 | break; |
12351 | } | |
378cc40b | 12352 | } |
463ee0b2 | 12353 | incline(s); |
79072805 | 12354 | } |
a0d0e21e LW |
12355 | enough: |
12356 | if (SvCUR(stuff)) { | |
3280af22 | 12357 | PL_expect = XTERM; |
79072805 | 12358 | if (needargs) { |
3280af22 | 12359 | PL_lex_state = LEX_NORMAL; |
cd81e915 | 12360 | start_force(PL_curforce); |
9ded7720 | 12361 | NEXTVAL_NEXTTOKE.ival = 0; |
79072805 LW |
12362 | force_next(','); |
12363 | } | |
a0d0e21e | 12364 | else |
3280af22 | 12365 | PL_lex_state = LEX_FORMLINE; |
1bd51a4c | 12366 | if (!IN_BYTES) { |
95a20fc0 | 12367 | if (UTF && is_utf8_string((U8*)SvPVX_const(stuff), SvCUR(stuff))) |
1bd51a4c IH |
12368 | SvUTF8_on(stuff); |
12369 | else if (PL_encoding) | |
12370 | sv_recode_to_utf8(stuff, PL_encoding); | |
12371 | } | |
cd81e915 | 12372 | start_force(PL_curforce); |
9ded7720 | 12373 | NEXTVAL_NEXTTOKE.opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
79072805 | 12374 | force_next(THING); |
cd81e915 | 12375 | start_force(PL_curforce); |
9ded7720 | 12376 | NEXTVAL_NEXTTOKE.ival = OP_FORMLINE; |
79072805 | 12377 | force_next(LSTOP); |
378cc40b | 12378 | } |
79072805 | 12379 | else { |
8990e307 | 12380 | SvREFCNT_dec(stuff); |
c5ee2135 WL |
12381 | if (eofmt) |
12382 | PL_lex_formbrack = 0; | |
3280af22 | 12383 | PL_bufptr = s; |
79072805 | 12384 | } |
5db06880 NC |
12385 | #ifdef PERL_MAD |
12386 | if (PL_madskills) { | |
cd81e915 NC |
12387 | if (PL_thistoken) |
12388 | sv_catpvn(PL_thistoken, tokenstart, s - tokenstart); | |
5db06880 | 12389 | else |
cd81e915 NC |
12390 | PL_thistoken = newSVpvn(tokenstart, s - tokenstart); |
12391 | PL_thiswhite = savewhite; | |
5db06880 NC |
12392 | } |
12393 | #endif | |
79072805 | 12394 | return s; |
378cc40b | 12395 | } |
a687059c | 12396 | |
ba6d6ac9 | 12397 | I32 |
864dbfa3 | 12398 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 12399 | { |
97aff369 | 12400 | dVAR; |
a3b680e6 | 12401 | const I32 oldsavestack_ix = PL_savestack_ix; |
6136c704 | 12402 | CV* const outsidecv = PL_compcv; |
8990e307 | 12403 | |
3280af22 NIS |
12404 | if (PL_compcv) { |
12405 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 12406 | } |
7766f137 | 12407 | SAVEI32(PL_subline); |
3280af22 | 12408 | save_item(PL_subname); |
3280af22 | 12409 | SAVESPTR(PL_compcv); |
3280af22 | 12410 | |
b9f83d2f | 12411 | PL_compcv = (CV*)newSV_type(is_format ? SVt_PVFM : SVt_PVCV); |
3280af22 NIS |
12412 | CvFLAGS(PL_compcv) |= flags; |
12413 | ||
57843af0 | 12414 | PL_subline = CopLINE(PL_curcop); |
dd2155a4 | 12415 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE|padnew_SAVESUB); |
b37c2d43 | 12416 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc_simple(outsidecv); |
a3985cdc | 12417 | CvOUTSIDE_SEQ(PL_compcv) = PL_cop_seqmax; |
748a9306 | 12418 | |
8990e307 LW |
12419 | return oldsavestack_ix; |
12420 | } | |
12421 | ||
084592ab CN |
12422 | #ifdef __SC__ |
12423 | #pragma segment Perl_yylex | |
12424 | #endif | |
8990e307 | 12425 | int |
bfed75c6 | 12426 | Perl_yywarn(pTHX_ const char *s) |
8990e307 | 12427 | { |
97aff369 | 12428 | dVAR; |
faef0170 | 12429 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 12430 | yyerror(s); |
faef0170 | 12431 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 12432 | return 0; |
8990e307 LW |
12433 | } |
12434 | ||
12435 | int | |
bfed75c6 | 12436 | Perl_yyerror(pTHX_ const char *s) |
463ee0b2 | 12437 | { |
97aff369 | 12438 | dVAR; |
bfed75c6 AL |
12439 | const char *where = NULL; |
12440 | const char *context = NULL; | |
68dc0745 | 12441 | int contlen = -1; |
46fc3d4c | 12442 | SV *msg; |
5912531f | 12443 | int yychar = PL_parser->yychar; |
463ee0b2 | 12444 | |
3280af22 | 12445 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 12446 | where = "at EOF"; |
8bcfe651 TM |
12447 | else if (PL_oldoldbufptr && PL_bufptr > PL_oldoldbufptr && |
12448 | PL_bufptr - PL_oldoldbufptr < 200 && PL_oldoldbufptr != PL_oldbufptr && | |
12449 | PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12450 | /* |
12451 | Only for NetWare: | |
12452 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12453 | when the script has error such as not having the closing quotes like: | |
12454 | if ($var eq "value) | |
12455 | Checking of white spaces is anyway done in NetWare code. | |
12456 | */ | |
12457 | #ifndef NETWARE | |
3280af22 NIS |
12458 | while (isSPACE(*PL_oldoldbufptr)) |
12459 | PL_oldoldbufptr++; | |
f355267c | 12460 | #endif |
3280af22 NIS |
12461 | context = PL_oldoldbufptr; |
12462 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 12463 | } |
8bcfe651 TM |
12464 | else if (PL_oldbufptr && PL_bufptr > PL_oldbufptr && |
12465 | PL_bufptr - PL_oldbufptr < 200 && PL_oldbufptr != PL_bufptr) { | |
f355267c JH |
12466 | /* |
12467 | Only for NetWare: | |
12468 | The code below is removed for NetWare because it abends/crashes on NetWare | |
12469 | when the script has error such as not having the closing quotes like: | |
12470 | if ($var eq "value) | |
12471 | Checking of white spaces is anyway done in NetWare code. | |
12472 | */ | |
12473 | #ifndef NETWARE | |
3280af22 NIS |
12474 | while (isSPACE(*PL_oldbufptr)) |
12475 | PL_oldbufptr++; | |
f355267c | 12476 | #endif |
3280af22 NIS |
12477 | context = PL_oldbufptr; |
12478 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
12479 | } |
12480 | else if (yychar > 255) | |
68dc0745 | 12481 | where = "next token ???"; |
12fbd33b | 12482 | else if (yychar == -2) { /* YYEMPTY */ |
3280af22 NIS |
12483 | if (PL_lex_state == LEX_NORMAL || |
12484 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 12485 | where = "at end of line"; |
3280af22 | 12486 | else if (PL_lex_inpat) |
68dc0745 | 12487 | where = "within pattern"; |
463ee0b2 | 12488 | else |
68dc0745 | 12489 | where = "within string"; |
463ee0b2 | 12490 | } |
46fc3d4c | 12491 | else { |
84bafc02 | 12492 | SV * const where_sv = newSVpvs_flags("next char ", SVs_TEMP); |
46fc3d4c | 12493 | if (yychar < 32) |
cea2e8a9 | 12494 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
5e7aa789 | 12495 | else if (isPRINT_LC(yychar)) { |
88c9ea1e | 12496 | const char string = yychar; |
5e7aa789 NC |
12497 | sv_catpvn(where_sv, &string, 1); |
12498 | } | |
463ee0b2 | 12499 | else |
cea2e8a9 | 12500 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
95a20fc0 | 12501 | where = SvPVX_const(where_sv); |
463ee0b2 | 12502 | } |
46fc3d4c | 12503 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf | 12504 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
248c2a4d | 12505 | OutCopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
68dc0745 | 12506 | if (context) |
cea2e8a9 | 12507 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 12508 | else |
cea2e8a9 | 12509 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 12510 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 12511 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 12512 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 12513 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 12514 | PL_multi_end = 0; |
a0d0e21e | 12515 | } |
500960a6 RD |
12516 | if (PL_in_eval & EVAL_WARNONLY) { |
12517 | if (ckWARN_d(WARN_SYNTAX)) | |
12518 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "%"SVf, SVfARG(msg)); | |
12519 | } | |
463ee0b2 | 12520 | else |
5a844595 | 12521 | qerror(msg); |
c7d6bfb2 GS |
12522 | if (PL_error_count >= 10) { |
12523 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 12524 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
be2597df | 12525 | SVfARG(ERRSV), OutCopFILE(PL_curcop)); |
c7d6bfb2 GS |
12526 | else |
12527 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
248c2a4d | 12528 | OutCopFILE(PL_curcop)); |
c7d6bfb2 | 12529 | } |
3280af22 | 12530 | PL_in_my = 0; |
5c284bb0 | 12531 | PL_in_my_stash = NULL; |
463ee0b2 LW |
12532 | return 0; |
12533 | } | |
084592ab CN |
12534 | #ifdef __SC__ |
12535 | #pragma segment Main | |
12536 | #endif | |
4e35701f | 12537 | |
b250498f | 12538 | STATIC char* |
3ae08724 | 12539 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 12540 | { |
97aff369 | 12541 | dVAR; |
f54cb97a | 12542 | const STRLEN slen = SvCUR(PL_linestr); |
7aa207d6 | 12543 | switch (s[0]) { |
4e553d73 NIS |
12544 | case 0xFF: |
12545 | if (s[1] == 0xFE) { | |
7aa207d6 | 12546 | /* UTF-16 little-endian? (or UTF32-LE?) */ |
3ae08724 | 12547 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
7aa207d6 | 12548 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-LE"); |
01ec43d0 | 12549 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12550 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF16-LE script encoding (BOM)\n"); |
3ae08724 | 12551 | s += 2; |
7aa207d6 | 12552 | utf16le: |
dea0fc0b JH |
12553 | if (PL_bufend > (char*)s) { |
12554 | U8 *news; | |
12555 | I32 newlen; | |
12556 | ||
12557 | filter_add(utf16rev_textfilter, NULL); | |
a02a5408 | 12558 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd | 12559 | utf16_to_utf8_reversed(s, news, |
aed58286 | 12560 | PL_bufend - (char*)s - 1, |
1de9afcd | 12561 | &newlen); |
7aa207d6 | 12562 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
5db06880 NC |
12563 | #ifdef PERL_MAD |
12564 | s = (U8*)SvPVX(PL_linestr); | |
12565 | Copy(news, s, newlen, U8); | |
12566 | s[newlen] = '\0'; | |
12567 | #endif | |
dea0fc0b | 12568 | Safefree(news); |
7aa207d6 JH |
12569 | SvUTF8_on(PL_linestr); |
12570 | s = (U8*)SvPVX(PL_linestr); | |
5db06880 NC |
12571 | #ifdef PERL_MAD |
12572 | /* FIXME - is this a general bug fix? */ | |
12573 | s[newlen] = '\0'; | |
12574 | #endif | |
7aa207d6 | 12575 | PL_bufend = SvPVX(PL_linestr) + newlen; |
dea0fc0b | 12576 | } |
b250498f | 12577 | #else |
7aa207d6 | 12578 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-LE"); |
b250498f | 12579 | #endif |
01ec43d0 GS |
12580 | } |
12581 | break; | |
78ae23f5 | 12582 | case 0xFE: |
7aa207d6 | 12583 | if (s[1] == 0xFF) { /* UTF-16 big-endian? */ |
01ec43d0 | 12584 | #ifndef PERL_NO_UTF16_FILTER |
7aa207d6 | 12585 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (BOM)\n"); |
dea0fc0b | 12586 | s += 2; |
7aa207d6 | 12587 | utf16be: |
dea0fc0b JH |
12588 | if (PL_bufend > (char *)s) { |
12589 | U8 *news; | |
12590 | I32 newlen; | |
12591 | ||
12592 | filter_add(utf16_textfilter, NULL); | |
a02a5408 | 12593 | Newx(news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); |
1de9afcd RGS |
12594 | utf16_to_utf8(s, news, |
12595 | PL_bufend - (char*)s, | |
12596 | &newlen); | |
7aa207d6 | 12597 | sv_setpvn(PL_linestr, (const char*)news, newlen); |
dea0fc0b | 12598 | Safefree(news); |
7aa207d6 JH |
12599 | SvUTF8_on(PL_linestr); |
12600 | s = (U8*)SvPVX(PL_linestr); | |
12601 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
dea0fc0b | 12602 | } |
b250498f | 12603 | #else |
7aa207d6 | 12604 | Perl_croak(aTHX_ "Unsupported script encoding UTF16-BE"); |
b250498f | 12605 | #endif |
01ec43d0 GS |
12606 | } |
12607 | break; | |
3ae08724 GS |
12608 | case 0xEF: |
12609 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
7aa207d6 | 12610 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); |
01ec43d0 GS |
12611 | s += 3; /* UTF-8 */ |
12612 | } | |
12613 | break; | |
12614 | case 0: | |
7aa207d6 JH |
12615 | if (slen > 3) { |
12616 | if (s[1] == 0) { | |
12617 | if (s[2] == 0xFE && s[3] == 0xFF) { | |
12618 | /* UTF-32 big-endian */ | |
12619 | Perl_croak(aTHX_ "Unsupported script encoding UTF32-BE"); | |
12620 | } | |
12621 | } | |
12622 | else if (s[2] == 0 && s[3] != 0) { | |
12623 | /* Leading bytes | |
12624 | * 00 xx 00 xx | |
12625 | * are a good indicator of UTF-16BE. */ | |
12626 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding (no BOM)\n"); | |
12627 | goto utf16be; | |
12628 | } | |
01ec43d0 | 12629 | } |
e294cc5d JH |
12630 | #ifdef EBCDIC |
12631 | case 0xDD: | |
12632 | if (slen > 3 && s[1] == 0x73 && s[2] == 0x66 && s[3] == 0x73) { | |
12633 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-8 script encoding (BOM)\n"); | |
12634 | s += 4; /* UTF-8 */ | |
12635 | } | |
12636 | break; | |
12637 | #endif | |
12638 | ||
7aa207d6 JH |
12639 | default: |
12640 | if (slen > 3 && s[1] == 0 && s[2] != 0 && s[3] == 0) { | |
12641 | /* Leading bytes | |
12642 | * xx 00 xx 00 | |
12643 | * are a good indicator of UTF-16LE. */ | |
12644 | if (DEBUG_p_TEST || DEBUG_T_TEST) PerlIO_printf(Perl_debug_log, "UTF-16LE script encoding (no BOM)\n"); | |
12645 | goto utf16le; | |
12646 | } | |
01ec43d0 | 12647 | } |
b8f84bb2 | 12648 | return (char*)s; |
b250498f | 12649 | } |
4755096e | 12650 | |
6e3aabd6 GS |
12651 | |
12652 | #ifndef PERL_NO_UTF16_FILTER | |
12653 | static I32 | |
acfe0abc | 12654 | utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12655 | { |
97aff369 | 12656 | dVAR; |
f54cb97a AL |
12657 | const STRLEN old = SvCUR(sv); |
12658 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12659 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12660 | "utf16_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12661 | FPTR2DPTR(void *, utf16_textfilter), |
12662 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12663 | if (count) { |
12664 | U8* tmps; | |
dea0fc0b | 12665 | I32 newlen; |
a02a5408 | 12666 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12667 | Copy(SvPVX_const(sv), tmps, old, char); |
12668 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12669 | SvCUR(sv) - old, &newlen); |
12670 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12671 | } |
1de9afcd RGS |
12672 | DEBUG_P({sv_dump(sv);}); |
12673 | return SvCUR(sv); | |
6e3aabd6 GS |
12674 | } |
12675 | ||
12676 | static I32 | |
acfe0abc | 12677 | utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
6e3aabd6 | 12678 | { |
97aff369 | 12679 | dVAR; |
f54cb97a AL |
12680 | const STRLEN old = SvCUR(sv); |
12681 | const I32 count = FILTER_READ(idx+1, sv, maxlen); | |
1de9afcd RGS |
12682 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
12683 | "utf16rev_textfilter(%p): %d %d (%d)\n", | |
55662e27 JH |
12684 | FPTR2DPTR(void *, utf16rev_textfilter), |
12685 | idx, maxlen, (int) count)); | |
6e3aabd6 GS |
12686 | if (count) { |
12687 | U8* tmps; | |
dea0fc0b | 12688 | I32 newlen; |
a02a5408 | 12689 | Newx(tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
95a20fc0 SP |
12690 | Copy(SvPVX_const(sv), tmps, old, char); |
12691 | utf16_to_utf8((U8*)SvPVX_const(sv) + old, tmps + old, | |
1de9afcd RGS |
12692 | SvCUR(sv) - old, &newlen); |
12693 | sv_usepvn(sv, (char*)tmps, (STRLEN)newlen + old); | |
6e3aabd6 | 12694 | } |
1de9afcd | 12695 | DEBUG_P({ sv_dump(sv); }); |
6e3aabd6 GS |
12696 | return count; |
12697 | } | |
12698 | #endif | |
9f4817db | 12699 | |
f333445c JP |
12700 | /* |
12701 | Returns a pointer to the next character after the parsed | |
12702 | vstring, as well as updating the passed in sv. | |
12703 | ||
12704 | Function must be called like | |
12705 | ||
561b68a9 | 12706 | sv = newSV(5); |
65b06e02 | 12707 | s = scan_vstring(s,e,sv); |
f333445c | 12708 | |
65b06e02 | 12709 | where s and e are the start and end of the string. |
f333445c JP |
12710 | The sv should already be large enough to store the vstring |
12711 | passed in, for performance reasons. | |
12712 | ||
12713 | */ | |
12714 | ||
12715 | char * | |
65b06e02 | 12716 | Perl_scan_vstring(pTHX_ const char *s, const char *e, SV *sv) |
f333445c | 12717 | { |
97aff369 | 12718 | dVAR; |
bfed75c6 AL |
12719 | const char *pos = s; |
12720 | const char *start = s; | |
f333445c | 12721 | if (*pos == 'v') pos++; /* get past 'v' */ |
65b06e02 | 12722 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
3e884cbf | 12723 | pos++; |
f333445c JP |
12724 | if ( *pos != '.') { |
12725 | /* this may not be a v-string if followed by => */ | |
bfed75c6 | 12726 | const char *next = pos; |
65b06e02 | 12727 | while (next < e && isSPACE(*next)) |
8fc7bb1c | 12728 | ++next; |
65b06e02 | 12729 | if ((e - next) >= 2 && *next == '=' && next[1] == '>' ) { |
f333445c JP |
12730 | /* return string not v-string */ |
12731 | sv_setpvn(sv,(char *)s,pos-s); | |
73d840c0 | 12732 | return (char *)pos; |
f333445c JP |
12733 | } |
12734 | } | |
12735 | ||
12736 | if (!isALPHA(*pos)) { | |
89ebb4a3 | 12737 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
f333445c | 12738 | |
d4c19fe8 AL |
12739 | if (*s == 'v') |
12740 | s++; /* get past 'v' */ | |
f333445c JP |
12741 | |
12742 | sv_setpvn(sv, "", 0); | |
12743 | ||
12744 | for (;;) { | |
d4c19fe8 | 12745 | /* this is atoi() that tolerates underscores */ |
0bd48802 AL |
12746 | U8 *tmpend; |
12747 | UV rev = 0; | |
d4c19fe8 AL |
12748 | const char *end = pos; |
12749 | UV mult = 1; | |
12750 | while (--end >= s) { | |
12751 | if (*end != '_') { | |
12752 | const UV orev = rev; | |
f333445c JP |
12753 | rev += (*end - '0') * mult; |
12754 | mult *= 10; | |
12755 | if (orev > rev && ckWARN_d(WARN_OVERFLOW)) | |
12756 | Perl_warner(aTHX_ packWARN(WARN_OVERFLOW), | |
12757 | "Integer overflow in decimal number"); | |
12758 | } | |
12759 | } | |
12760 | #ifdef EBCDIC | |
12761 | if (rev > 0x7FFFFFFF) | |
12762 | Perl_croak(aTHX_ "In EBCDIC the v-string components cannot exceed 2147483647"); | |
12763 | #endif | |
12764 | /* Append native character for the rev point */ | |
12765 | tmpend = uvchr_to_utf8(tmpbuf, rev); | |
12766 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); | |
12767 | if (!UNI_IS_INVARIANT(NATIVE_TO_UNI(rev))) | |
12768 | SvUTF8_on(sv); | |
65b06e02 | 12769 | if (pos + 1 < e && *pos == '.' && isDIGIT(pos[1])) |
f333445c JP |
12770 | s = ++pos; |
12771 | else { | |
12772 | s = pos; | |
12773 | break; | |
12774 | } | |
65b06e02 | 12775 | while (pos < e && (isDIGIT(*pos) || *pos == '_')) |
f333445c JP |
12776 | pos++; |
12777 | } | |
12778 | SvPOK_on(sv); | |
12779 | sv_magic(sv,NULL,PERL_MAGIC_vstring,(const char*)start, pos-start); | |
12780 | SvRMAGICAL_on(sv); | |
12781 | } | |
73d840c0 | 12782 | return (char *)s; |
f333445c JP |
12783 | } |
12784 | ||
1da4ca5f NC |
12785 | /* |
12786 | * Local variables: | |
12787 | * c-indentation-style: bsd | |
12788 | * c-basic-offset: 4 | |
12789 | * indent-tabs-mode: t | |
12790 | * End: | |
12791 | * | |
37442d52 RGS |
12792 | * ex: set ts=8 sts=4 sw=4 noet: |
12793 | */ |