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1 | /* $RCSfile: toke.c,v $$Revision: 4.1 $$Date: 92/08/07 18:28:39 $ |
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2 | * |
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3 | * Copyright (c) 1991, Larry Wall |
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4 | * |
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5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
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7 | * |
8 | * $Log: toke.c,v $ |
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9 | * Revision 4.1 92/08/07 18:28:39 lwall |
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10 | * |
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11 | * Revision 4.0.1.7 92/06/11 21:16:30 lwall |
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12 | * patch34: expect incorrectly set to indicate start of program or block |
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13 | * |
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14 | * Revision 4.0.1.6 92/06/08 16:03:49 lwall |
15 | * patch20: an EXPR may now start with a bareword |
16 | * patch20: print $fh EXPR can now expect term rather than operator in EXPR |
17 | * patch20: added ... as variant on .. |
18 | * patch20: new warning on spurious backslash |
19 | * patch20: new warning on missing $ for foreach variable |
20 | * patch20: "foo"x1024 now legal without space after x |
21 | * patch20: new warning on print accidentally used as function |
22 | * patch20: tr/stuff// wasn't working right |
23 | * patch20: 2. now eats the dot |
24 | * patch20: <@ARGV> now notices @ARGV |
25 | * patch20: tr/// now lets you say \- |
26 | * |
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27 | * Revision 4.0.1.5 91/11/11 16:45:51 lwall |
28 | * patch19: default arg for shift was wrong after first subroutine definition |
29 | * |
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30 | * Revision 4.0.1.4 91/11/05 19:02:48 lwall |
31 | * patch11: \x and \c were subject to double interpretation in regexps |
32 | * patch11: prepared for ctype implementations that don't define isascii() |
33 | * patch11: nested list operators could miscount parens |
34 | * patch11: once-thru blocks didn't display right in the debugger |
35 | * patch11: sort eval "whatever" didn't work |
36 | * patch11: underscore is now allowed within literal octal and hex numbers |
37 | * |
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38 | * Revision 4.0.1.3 91/06/10 01:32:26 lwall |
39 | * patch10: m'$foo' now treats string as single quoted |
40 | * patch10: certain pattern optimizations were botched |
41 | * |
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42 | * Revision 4.0.1.2 91/06/07 12:05:56 lwall |
43 | * patch4: new copyright notice |
44 | * patch4: debugger lost track of lines in eval |
45 | * patch4: //o and s///o now optimize themselves fully at runtime |
46 | * patch4: added global modifier for pattern matches |
47 | * |
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48 | * Revision 4.0.1.1 91/04/12 09:18:18 lwall |
49 | * patch1: perl -de "print" wouldn't stop at the first statement |
50 | * |
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51 | * Revision 4.0 91/03/20 01:42:14 lwall |
52 | * 4.0 baseline. |
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53 | * |
54 | */ |
55 | |
56 | #include "EXTERN.h" |
57 | #include "perl.h" |
58 | #include "perly.h" |
59 | |
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60 | static void set_csh(); |
61 | |
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62 | /* The following are arranged oddly so that the guard on the switch statement |
63 | * can get by with a single comparison (if the compiler is smart enough). |
64 | */ |
65 | |
66 | #define LEX_NORMAL 8 |
67 | #define LEX_INTERPNORMAL 7 |
68 | #define LEX_INTERPCASEMOD 6 |
69 | #define LEX_INTERPSTART 5 |
70 | #define LEX_INTERPEND 4 |
71 | #define LEX_INTERPENDMAYBE 3 |
72 | #define LEX_INTERPCONCAT 2 |
73 | #define LEX_INTERPCONST 1 |
74 | #define LEX_KNOWNEXT 0 |
75 | |
76 | static U32 lex_state = LEX_NORMAL; /* next token is determined */ |
77 | static U32 lex_defer; /* state after determined token */ |
78 | static I32 lex_brackets; /* bracket count */ |
79 | static I32 lex_fakebrack; /* outer bracket is mere delimiter */ |
80 | static I32 lex_casemods; /* casemod count */ |
81 | static I32 lex_dojoin; /* doing an array interpolation */ |
82 | static I32 lex_starts; /* how many interps done on level */ |
83 | static SV * lex_stuff; /* runtime pattern from m// or s/// */ |
84 | static SV * lex_repl; /* runtime replacement from s/// */ |
85 | static OP * lex_op; /* extra info to pass back on op */ |
86 | static I32 lex_inpat; /* in pattern $) and $| are special */ |
87 | static I32 lex_inwhat; /* what kind of quoting are we in */ |
88 | |
89 | /* What we know when we're in LEX_KNOWNEXT state. */ |
90 | static YYSTYPE nextval[5]; /* value of next token, if any */ |
91 | static I32 nexttype[5]; /* type of next token */ |
92 | static I32 nexttoke = 0; |
93 | |
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94 | #ifdef I_FCNTL |
95 | #include <fcntl.h> |
96 | #endif |
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97 | #ifdef I_SYS_FILE |
98 | #include <sys/file.h> |
99 | #endif |
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100 | |
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101 | #ifdef ff_next |
102 | #undef ff_next |
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103 | #endif |
104 | |
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105 | #include "keywords.h" |
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106 | |
107 | void checkcomma(); |
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108 | |
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109 | #ifdef CLINE |
110 | #undef CLINE |
111 | #endif |
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112 | #define CLINE (copline = (curcop->cop_line < copline ? curcop->cop_line : copline)) |
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113 | |
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114 | #ifdef atarist |
115 | #define PERL_META(c) ((c) | 128) |
116 | #else |
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117 | #define META(c) ((c) | 128) |
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118 | #endif |
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119 | |
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120 | #define TOKEN(retval) return (bufptr = s,(int)retval) |
121 | #define OPERATOR(retval) return (expect = XTERM,bufptr = s,(int)retval) |
122 | #define PREBLOCK(retval) return (expect = XBLOCK,bufptr = s,(int)retval) |
123 | #define PREREF(retval) return (expect = XREF,bufptr = s,(int)retval) |
124 | #define TERM(retval) return (CLINE, expect = XOPERATOR,bufptr = s,(int)retval) |
125 | #define LOOPX(f) return(yylval.ival=f,expect = XOPERATOR,bufptr = s,(int)LOOPEX) |
126 | #define FTST(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)UNIOP) |
127 | #define FUN0(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC0) |
128 | #define FUN1(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC1) |
129 | #define BOop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)BITOROP) |
130 | #define BAop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)BITANDOP) |
131 | #define SHop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)SHIFTOP) |
132 | #define PWop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)POWOP) |
133 | #define PMop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)MATCHOP) |
134 | #define Aop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)ADDOP) |
135 | #define Mop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)MULOP) |
136 | #define Eop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)EQOP) |
137 | #define Rop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)RELOP) |
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138 | |
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139 | /* This bit of chicanery makes a unary function followed by |
140 | * a parenthesis into a function with one argument, highest precedence. |
141 | */ |
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142 | #define UNI(f) return(yylval.ival = f, \ |
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143 | expect = XTERM, \ |
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144 | bufptr = s, \ |
145 | last_uni = oldbufptr, \ |
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146 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) ) |
147 | |
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148 | #define UNIBRACK(f) return(yylval.ival = f, \ |
149 | bufptr = s, \ |
150 | last_uni = oldbufptr, \ |
151 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) ) |
152 | |
153 | /* This does similarly for list operators */ |
154 | #define LOP(f) return(yylval.ival = f, \ |
155 | CLINE, \ |
156 | expect = XREF, \ |
157 | bufptr = s, \ |
158 | last_lop = oldbufptr, \ |
159 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC : (int)LSTOP) ) |
160 | |
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161 | /* grandfather return to old style */ |
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162 | #define OLDLOP(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LSTOP) |
163 | |
164 | #define SNARFWORD \ |
165 | *d++ = *s++; \ |
166 | while (s < bufend && isALNUM(*s)) \ |
167 | *d++ = *s++; \ |
168 | *d = '\0'; |
169 | |
170 | void |
171 | reinit_lexer() |
172 | { |
173 | lex_state = LEX_NORMAL; |
174 | lex_defer = 0; |
175 | lex_brackets = 0; |
176 | lex_fakebrack = 0; |
177 | lex_casemods = 0; |
178 | lex_dojoin = 0; |
179 | lex_starts = 0; |
180 | if (lex_stuff) |
181 | sv_free(lex_stuff); |
182 | lex_stuff = Nullsv; |
183 | if (lex_repl) |
184 | sv_free(lex_repl); |
185 | lex_repl = Nullsv; |
186 | lex_inpat = 0; |
187 | lex_inwhat = 0; |
188 | oldoldbufptr = oldbufptr = bufptr = SvPVn(linestr); |
189 | bufend = bufptr + SvCUR(linestr); |
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190 | rs = "\n"; |
191 | rslen = 1; |
192 | rschar = '\n'; |
193 | rspara = 0; |
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194 | } |
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195 | |
196 | char * |
197 | skipspace(s) |
198 | register char *s; |
199 | { |
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200 | while (s < bufend && isSPACE(*s)) |
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201 | s++; |
202 | return s; |
203 | } |
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204 | |
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205 | void |
206 | check_uni() { |
207 | char *s; |
208 | char ch; |
209 | |
210 | if (oldoldbufptr != last_uni) |
211 | return; |
212 | while (isSPACE(*last_uni)) |
213 | last_uni++; |
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214 | for (s = last_uni; isALNUM(*s) || *s == '-'; s++) ; |
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215 | ch = *s; |
216 | *s = '\0'; |
217 | warn("Warning: Use of \"%s\" without parens is ambiguous", last_uni); |
218 | *s = ch; |
219 | } |
220 | |
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221 | #ifdef CRIPPLED_CC |
222 | |
223 | #undef UNI |
224 | #undef LOP |
225 | #define UNI(f) return uni(f,s) |
226 | #define LOP(f) return lop(f,s) |
227 | |
228 | int |
229 | uni(f,s) |
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230 | I32 f; |
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231 | char *s; |
232 | { |
233 | yylval.ival = f; |
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234 | expect = XTERM; |
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235 | bufptr = s; |
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236 | last_uni = oldbufptr; |
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237 | if (*s == '(') |
238 | return FUNC1; |
239 | s = skipspace(s); |
240 | if (*s == '(') |
241 | return FUNC1; |
242 | else |
243 | return UNIOP; |
244 | } |
245 | |
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246 | I32 |
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247 | lop(f,s) |
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248 | I32 f; |
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249 | char *s; |
250 | { |
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251 | yylval.ival = f; |
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252 | CLINE; |
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253 | expect = XREF; |
254 | bufptr = s; |
255 | last_uni = oldbufptr; |
256 | if (*s == '(') |
257 | return FUNC; |
258 | s = skipspace(s); |
259 | if (*s == '(') |
260 | return FUNC; |
261 | else |
262 | return LSTOP; |
263 | } |
264 | |
265 | #endif /* CRIPPLED_CC */ |
266 | |
267 | void |
268 | force_next(type) |
269 | I32 type; |
270 | { |
271 | nexttype[nexttoke] = type; |
272 | nexttoke++; |
273 | if (lex_state != LEX_KNOWNEXT) { |
274 | lex_defer = lex_state; |
275 | lex_state = LEX_KNOWNEXT; |
276 | } |
277 | } |
278 | |
279 | char * |
280 | force_word(s,token) |
281 | register char *s; |
282 | int token; |
283 | { |
284 | register char *d; |
285 | |
286 | s = skipspace(s); |
287 | if (isIDFIRST(*s) || *s == '\'') { |
288 | d = tokenbuf; |
289 | SNARFWORD; |
290 | while (s < bufend && *s == '\'' && isIDFIRST(s[1])) { |
291 | *d++ = *s++; |
292 | SNARFWORD; |
293 | } |
294 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); |
295 | force_next(token); |
296 | } |
297 | return s; |
298 | } |
299 | |
300 | void |
301 | force_ident(s) |
302 | register char *s; |
303 | { |
304 | if (s && *s) { |
305 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0)); |
306 | force_next(WORD); |
307 | } |
308 | } |
309 | |
310 | SV * |
311 | q(sv) |
312 | SV *sv; |
313 | { |
314 | register char *s; |
315 | register char *send; |
316 | register char *d; |
317 | register char delim; |
318 | |
319 | if (!SvLEN(sv)) |
320 | return sv; |
321 | |
322 | s = SvPVn(sv); |
323 | send = s + SvCUR(sv); |
324 | while (s < send && *s != '\\') |
325 | s++; |
326 | if (s == send) |
327 | return sv; |
328 | d = s; |
329 | delim = SvSTORAGE(sv); |
330 | while (s < send) { |
331 | if (*s == '\\') { |
332 | if (s + 1 < send && (s[1] == '\\' || s[1] == delim)) |
333 | s++; /* all that, just for this */ |
334 | } |
335 | *d++ = *s++; |
336 | } |
337 | *d = '\0'; |
338 | SvCUR_set(sv, d - SvPV(sv)); |
339 | |
340 | return sv; |
341 | } |
342 | |
343 | I32 |
344 | sublex_start() |
345 | { |
346 | register I32 op_type = yylval.ival; |
347 | SV *sv; |
348 | |
349 | if (op_type == OP_NULL) { |
350 | yylval.opval = lex_op; |
351 | lex_op = Nullop; |
352 | return THING; |
353 | } |
354 | if (op_type == OP_CONST || op_type == OP_READLINE) { |
355 | yylval.opval = (OP*)newSVOP(op_type, 0, q(lex_stuff)); |
356 | lex_stuff = Nullsv; |
357 | return THING; |
358 | } |
359 | |
360 | push_scope(); |
361 | SAVEINT(lex_dojoin); |
362 | SAVEINT(lex_brackets); |
363 | SAVEINT(lex_fakebrack); |
364 | SAVEINT(lex_casemods); |
365 | SAVEINT(lex_starts); |
366 | SAVEINT(lex_state); |
367 | SAVEINT(lex_inpat); |
368 | SAVEINT(lex_inwhat); |
369 | SAVEINT(curcop->cop_line); |
370 | SAVESPTR(bufptr); |
371 | SAVESPTR(oldbufptr); |
372 | SAVESPTR(oldoldbufptr); |
373 | SAVESPTR(linestr); |
374 | |
375 | linestr = lex_stuff; |
376 | lex_stuff = Nullsv; |
377 | |
378 | bufend = bufptr = oldbufptr = oldoldbufptr = SvPVn(linestr); |
379 | bufend += SvCUR(linestr); |
380 | |
381 | lex_dojoin = FALSE; |
382 | lex_brackets = 0; |
383 | lex_fakebrack = 0; |
384 | lex_casemods = 0; |
385 | lex_starts = 0; |
386 | lex_state = LEX_INTERPCONCAT; |
387 | curcop->cop_line = multi_start; |
388 | |
389 | lex_inwhat = op_type; |
390 | if (op_type == OP_MATCH || op_type == OP_SUBST) |
391 | lex_inpat = op_type; |
392 | else |
393 | lex_inpat = 0; |
394 | |
395 | force_next('('); |
396 | if (lex_op) { |
397 | yylval.opval = lex_op; |
398 | lex_op = Nullop; |
399 | return PMFUNC; |
400 | } |
401 | else |
402 | return FUNC; |
403 | } |
404 | |
405 | I32 |
406 | sublex_done() |
407 | { |
408 | if (!lex_starts++) { |
409 | expect = XOPERATOR; |
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410 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv("",0)); |
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411 | return THING; |
412 | } |
413 | |
414 | if (lex_casemods) { /* oops, we've got some unbalanced parens */ |
415 | lex_state = LEX_INTERPCASEMOD; |
416 | return yylex(); |
417 | } |
418 | |
419 | sv_free(linestr); |
420 | /* Is there a right-hand side to take care of? */ |
421 | if (lex_repl && (lex_inwhat == OP_SUBST || lex_inwhat == OP_TRANS)) { |
422 | linestr = lex_repl; |
423 | lex_inpat = 0; |
424 | bufend = bufptr = oldbufptr = oldoldbufptr = SvPVn(linestr); |
425 | bufend += SvCUR(linestr); |
426 | lex_dojoin = FALSE; |
427 | lex_brackets = 0; |
428 | lex_fakebrack = 0; |
429 | lex_casemods = 0; |
430 | lex_starts = 0; |
431 | if (SvCOMPILED(lex_repl)) { |
432 | lex_state = LEX_INTERPNORMAL; |
433 | lex_starts++; |
434 | } |
435 | else |
436 | lex_state = LEX_INTERPCONCAT; |
437 | lex_repl = Nullsv; |
438 | return ','; |
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439 | } |
440 | else { |
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441 | pop_scope(); |
442 | bufend = SvPVn(linestr); |
443 | bufend += SvCUR(linestr); |
444 | expect = XOPERATOR; |
445 | return ')'; |
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446 | } |
447 | } |
448 | |
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449 | char * |
450 | scan_const(start) |
451 | char *start; |
452 | { |
453 | register char *send = bufend; |
454 | SV *sv = NEWSV(93, send - start); |
455 | register char *s = start; |
456 | register char *d = SvPV(sv); |
457 | char delim = SvSTORAGE(linestr); |
458 | bool dorange = FALSE; |
459 | I32 len; |
460 | char *leave = |
461 | lex_inpat |
462 | ? "\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}" |
463 | : (lex_inwhat & OP_TRANS) |
464 | ? "" |
465 | : ""; |
466 | |
467 | while (s < send || dorange) { |
468 | if (lex_inwhat == OP_TRANS) { |
469 | if (dorange) { |
470 | I32 i; |
471 | I32 max; |
472 | i = d - SvPV(sv); |
473 | SvGROW(sv, SvLEN(sv) + 256); |
474 | d = SvPV(sv) + i; |
475 | d -= 2; |
476 | max = d[1] & 0377; |
477 | for (i = (*d & 0377); i <= max; i++) |
478 | *d++ = i; |
479 | dorange = FALSE; |
480 | continue; |
481 | } |
482 | else if (*s == '-' && s+1 < send && s != start) { |
483 | dorange = TRUE; |
484 | s++; |
485 | } |
486 | } |
487 | else if (*s == '@') |
488 | break; |
489 | else if (*s == '$') { |
490 | if (!lex_inpat) /* not a regexp, so $ must be var */ |
491 | break; |
492 | if (s + 1 < send && s[1] != ')' && s[1] != '|') |
493 | break; /* in regexp, $ might be tail anchor */ |
494 | } |
495 | if (*s == '\\' && s+1 < send) { |
496 | s++; |
497 | if (*s == delim) { |
498 | *d++ = *s++; |
499 | continue; |
500 | } |
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501 | if (*s && strchr(leave, *s)) { |
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502 | *d++ = '\\'; |
503 | *d++ = *s++; |
504 | continue; |
505 | } |
506 | if (lex_inwhat == OP_SUBST && !lex_inpat && |
507 | isDIGIT(*s) && !isDIGIT(s[1])) |
508 | { |
509 | *--s = '$'; |
510 | break; |
511 | } |
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512 | if (lex_inwhat != OP_TRANS && *s && strchr("lLuUE", *s)) { |
79072805 |
513 | --s; |
514 | break; |
515 | } |
516 | switch (*s) { |
517 | case '-': |
518 | if (lex_inwhat == OP_TRANS) { |
519 | *d++ = *s++; |
520 | continue; |
521 | } |
522 | /* FALL THROUGH */ |
523 | default: |
524 | *d++ = *s++; |
525 | continue; |
526 | case '0': case '1': case '2': case '3': |
527 | case '4': case '5': case '6': case '7': |
528 | *d++ = scan_oct(s, 3, &len); |
529 | s += len; |
530 | continue; |
531 | case 'x': |
532 | *d++ = scan_hex(++s, 2, &len); |
533 | s += len; |
534 | continue; |
535 | case 'c': |
536 | s++; |
537 | *d = *s++; |
538 | if (isLOWER(*d)) |
539 | *d = toupper(*d); |
540 | *d++ ^= 64; |
541 | continue; |
542 | case 'b': |
543 | *d++ = '\b'; |
544 | break; |
545 | case 'n': |
546 | *d++ = '\n'; |
547 | break; |
548 | case 'r': |
549 | *d++ = '\r'; |
550 | break; |
551 | case 'f': |
552 | *d++ = '\f'; |
553 | break; |
554 | case 't': |
555 | *d++ = '\t'; |
556 | break; |
557 | case 'e': |
558 | *d++ = '\033'; |
559 | break; |
560 | case 'a': |
561 | *d++ = '\007'; |
562 | break; |
563 | } |
564 | s++; |
565 | continue; |
566 | } |
567 | *d++ = *s++; |
568 | } |
569 | *d = '\0'; |
570 | SvCUR_set(sv, d - SvPV(sv)); |
571 | SvPOK_on(sv); |
572 | |
573 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
574 | SvLEN_set(sv, SvCUR(sv) + 1); |
575 | Renew(SvPV(sv), SvLEN(sv), char); |
576 | } |
577 | if (s > bufptr) |
578 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
579 | else |
580 | sv_free(sv); |
581 | return s; |
582 | } |
583 | |
584 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
585 | int |
586 | intuit_more(s) |
587 | register char *s; |
588 | { |
589 | if (lex_brackets) |
590 | return TRUE; |
591 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) |
592 | return TRUE; |
593 | if (*s != '{' && *s != '[') |
594 | return FALSE; |
595 | if (!lex_inpat) |
596 | return TRUE; |
597 | |
598 | /* In a pattern, so maybe we have {n,m}. */ |
599 | if (*s == '{') { |
600 | s++; |
601 | if (!isDIGIT(*s)) |
602 | return TRUE; |
603 | while (isDIGIT(*s)) |
604 | s++; |
605 | if (*s == ',') |
606 | s++; |
607 | while (isDIGIT(*s)) |
608 | s++; |
609 | if (*s == '}') |
610 | return FALSE; |
611 | return TRUE; |
612 | |
613 | } |
614 | |
615 | /* On the other hand, maybe we have a character class */ |
616 | |
617 | s++; |
618 | if (*s == ']' || *s == '^') |
619 | return FALSE; |
620 | else { |
621 | int weight = 2; /* let's weigh the evidence */ |
622 | char seen[256]; |
623 | unsigned char un_char = 0, last_un_char; |
93a17b20 |
624 | char *send = strchr(s,']'); |
79072805 |
625 | char tmpbuf[512]; |
626 | |
627 | if (!send) /* has to be an expression */ |
628 | return TRUE; |
629 | |
630 | Zero(seen,256,char); |
631 | if (*s == '$') |
632 | weight -= 3; |
633 | else if (isDIGIT(*s)) { |
634 | if (s[1] != ']') { |
635 | if (isDIGIT(s[1]) && s[2] == ']') |
636 | weight -= 10; |
637 | } |
638 | else |
639 | weight -= 100; |
640 | } |
641 | for (; s < send; s++) { |
642 | last_un_char = un_char; |
643 | un_char = (unsigned char)*s; |
644 | switch (*s) { |
645 | case '@': |
646 | case '&': |
647 | case '$': |
648 | weight -= seen[un_char] * 10; |
649 | if (isALNUM(s[1])) { |
650 | scan_ident(s,send,tmpbuf,FALSE); |
651 | if (strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE)) |
652 | weight -= 100; |
653 | else |
654 | weight -= 10; |
655 | } |
656 | else if (*s == '$' && s[1] && |
93a17b20 |
657 | strchr("[#!%*<>()-=",s[1])) { |
658 | if (/*{*/ strchr("])} =",s[2])) |
79072805 |
659 | weight -= 10; |
660 | else |
661 | weight -= 1; |
662 | } |
663 | break; |
664 | case '\\': |
665 | un_char = 254; |
666 | if (s[1]) { |
93a17b20 |
667 | if (strchr("wds]",s[1])) |
79072805 |
668 | weight += 100; |
669 | else if (seen['\''] || seen['"']) |
670 | weight += 1; |
93a17b20 |
671 | else if (strchr("rnftbxcav",s[1])) |
79072805 |
672 | weight += 40; |
673 | else if (isDIGIT(s[1])) { |
674 | weight += 40; |
675 | while (s[1] && isDIGIT(s[1])) |
676 | s++; |
677 | } |
678 | } |
679 | else |
680 | weight += 100; |
681 | break; |
682 | case '-': |
683 | if (s[1] == '\\') |
684 | weight += 50; |
93a17b20 |
685 | if (strchr("aA01! ",last_un_char)) |
79072805 |
686 | weight += 30; |
93a17b20 |
687 | if (strchr("zZ79~",s[1])) |
79072805 |
688 | weight += 30; |
689 | break; |
690 | default: |
93a17b20 |
691 | if (!isALNUM(last_un_char) && !strchr("$@&",last_un_char) && |
79072805 |
692 | isALPHA(*s) && s[1] && isALPHA(s[1])) { |
693 | char *d = tmpbuf; |
694 | while (isALPHA(*s)) |
695 | *d++ = *s++; |
696 | *d = '\0'; |
697 | if (keyword(tmpbuf, d - tmpbuf)) |
698 | weight -= 150; |
699 | } |
700 | if (un_char == last_un_char + 1) |
701 | weight += 5; |
702 | weight -= seen[un_char]; |
703 | break; |
704 | } |
705 | seen[un_char]++; |
706 | } |
707 | if (weight >= 0) /* probably a character class */ |
708 | return FALSE; |
709 | } |
710 | |
711 | return TRUE; |
712 | } |
ffed7fef |
713 | |
2f3197b3 |
714 | int |
378cc40b |
715 | yylex() |
716 | { |
79072805 |
717 | register char *s; |
378cc40b |
718 | register char *d; |
79072805 |
719 | register I32 tmp; |
a687059c |
720 | extern int yychar; /* last token */ |
721 | |
79072805 |
722 | switch (lex_state) { |
723 | #ifdef COMMENTARY |
724 | case LEX_NORMAL: /* Some compilers will produce faster */ |
725 | case LEX_INTERPNORMAL: /* code if we comment these out. */ |
726 | break; |
727 | #endif |
728 | |
729 | case LEX_KNOWNEXT: |
730 | nexttoke--; |
731 | yylval = nextval[nexttoke]; |
732 | if (!nexttoke) |
733 | lex_state = lex_defer; |
734 | return(nexttype[nexttoke]); |
735 | |
736 | case LEX_INTERPCASEMOD: |
737 | #ifdef DEBUGGING |
738 | if (bufptr != bufend && *bufptr != '\\') |
739 | fatal("panic: INTERPCASEMOD"); |
740 | #endif |
741 | if (bufptr == bufend || bufptr[1] == 'E') { |
742 | if (lex_casemods <= 1) { |
743 | if (bufptr != bufend) |
744 | bufptr += 2; |
745 | lex_state = LEX_INTERPSTART; |
746 | } |
747 | if (lex_casemods) { |
748 | --lex_casemods; |
749 | return ')'; |
750 | } |
751 | return yylex(); |
752 | } |
753 | else { |
754 | s = bufptr + 1; |
755 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) |
756 | tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */ |
757 | ++lex_casemods; |
758 | lex_state = LEX_INTERPCONCAT; |
759 | nextval[nexttoke].ival = 0; |
760 | force_next('('); |
761 | if (*s == 'l') |
762 | nextval[nexttoke].ival = OP_LCFIRST; |
763 | else if (*s == 'u') |
764 | nextval[nexttoke].ival = OP_UCFIRST; |
765 | else if (*s == 'L') |
766 | nextval[nexttoke].ival = OP_LC; |
767 | else if (*s == 'U') |
768 | nextval[nexttoke].ival = OP_UC; |
769 | else |
770 | fatal("panic: yylex"); |
771 | bufptr = s + 1; |
772 | force_next(FUNC); |
773 | if (lex_starts) { |
774 | s = bufptr; |
775 | Aop(OP_CONCAT); |
776 | } |
777 | else |
778 | return yylex(); |
779 | } |
780 | |
781 | case LEX_INTERPSTART: |
782 | if (bufptr == bufend) |
783 | return sublex_done(); |
784 | expect = XTERM; |
785 | lex_dojoin = (*bufptr == '@'); |
786 | lex_state = LEX_INTERPNORMAL; |
787 | if (lex_dojoin) { |
788 | nextval[nexttoke].ival = 0; |
789 | force_next(','); |
790 | force_ident("\""); |
791 | nextval[nexttoke].ival = 0; |
792 | force_next('$'); |
793 | nextval[nexttoke].ival = 0; |
794 | force_next('('); |
795 | nextval[nexttoke].ival = OP_JOIN; /* emulate join($", ...) */ |
796 | force_next(FUNC); |
797 | } |
798 | if (lex_starts++) { |
799 | s = bufptr; |
800 | Aop(OP_CONCAT); |
801 | } |
802 | else |
803 | return yylex(); |
804 | break; |
805 | |
806 | case LEX_INTERPENDMAYBE: |
807 | if (intuit_more(bufptr)) { |
808 | lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ |
809 | break; |
810 | } |
811 | /* FALL THROUGH */ |
812 | |
813 | case LEX_INTERPEND: |
814 | if (lex_dojoin) { |
815 | lex_dojoin = FALSE; |
816 | lex_state = LEX_INTERPCONCAT; |
817 | return ')'; |
818 | } |
819 | /* FALLTHROUGH */ |
820 | case LEX_INTERPCONCAT: |
821 | #ifdef DEBUGGING |
822 | if (lex_brackets) |
823 | fatal("panic: INTERPCONCAT"); |
824 | #endif |
825 | if (bufptr == bufend) |
826 | return sublex_done(); |
827 | |
828 | if (SvSTORAGE(linestr) == '\'') { |
829 | SV *sv = newSVsv(linestr); |
830 | if (!lex_inpat) |
831 | sv = q(sv); |
832 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
833 | s = bufend; |
834 | } |
835 | else { |
836 | s = scan_const(bufptr); |
837 | if (*s == '\\') |
838 | lex_state = LEX_INTERPCASEMOD; |
839 | else |
840 | lex_state = LEX_INTERPSTART; |
841 | } |
842 | |
843 | if (s != bufptr) { |
844 | nextval[nexttoke] = yylval; |
845 | force_next(THING); |
846 | if (lex_starts++) |
847 | Aop(OP_CONCAT); |
848 | else { |
849 | bufptr = s; |
850 | return yylex(); |
851 | } |
852 | } |
853 | |
854 | return yylex(); |
855 | } |
856 | |
857 | s = bufptr; |
a687059c |
858 | oldoldbufptr = oldbufptr; |
859 | oldbufptr = s; |
378cc40b |
860 | |
861 | retry: |
79072805 |
862 | DEBUG_p( { |
93a17b20 |
863 | if (strchr(s,'\n')) |
378cc40b |
864 | fprintf(stderr,"Tokener at %s",s); |
865 | else |
866 | fprintf(stderr,"Tokener at %s\n",s); |
79072805 |
867 | } ) |
e929a76b |
868 | #ifdef BADSWITCH |
869 | if (*s & 128) { |
79072805 |
870 | if ((*s & 127) == '}') { |
2f3197b3 |
871 | *s++ = '}'; |
79072805 |
872 | TOKEN('}'); |
2f3197b3 |
873 | } |
e929a76b |
874 | else |
fe14fcc3 |
875 | warn("Unrecognized character \\%03o ignored", *s++ & 255); |
e929a76b |
876 | goto retry; |
877 | } |
878 | #endif |
378cc40b |
879 | switch (*s) { |
880 | default: |
79072805 |
881 | if ((*s & 127) == '}') { |
2f3197b3 |
882 | *s++ = '}'; |
79072805 |
883 | TOKEN('}'); |
2f3197b3 |
884 | } |
a687059c |
885 | else |
fe14fcc3 |
886 | warn("Unrecognized character \\%03o ignored", *s++ & 255); |
378cc40b |
887 | goto retry; |
e929a76b |
888 | case 4: |
889 | case 26: |
890 | goto fake_eof; /* emulate EOF on ^D or ^Z */ |
378cc40b |
891 | case 0: |
378cc40b |
892 | if (!rsfp) |
79072805 |
893 | TOKEN(0); |
a687059c |
894 | if (s++ < bufend) |
895 | goto retry; /* ignore stray nulls */ |
2f3197b3 |
896 | last_uni = 0; |
79072805 |
897 | last_lop = 0; |
898 | if (!preambled) { |
899 | preambled = TRUE; |
900 | sv_setpv(linestr,""); |
901 | if (perldb) { |
902 | char *pdb = getenv("PERLDB"); |
903 | |
93a17b20 |
904 | sv_catpv(linestr,"BEGIN{"); |
79072805 |
905 | sv_catpv(linestr, pdb ? pdb : "require 'perldb.pl'"); |
93a17b20 |
906 | sv_catpv(linestr, "}"); |
a687059c |
907 | } |
79072805 |
908 | if (minus_n || minus_p) { |
909 | sv_catpv(linestr, "LINE: while (<>) {"); |
910 | if (minus_l) |
911 | sv_catpv(linestr,"chop;"); |
912 | if (minus_a) |
913 | sv_catpv(linestr,"@F=split(' ');"); |
914 | } |
915 | oldoldbufptr = oldbufptr = s = SvPVn(linestr); |
916 | bufend = SvPV(linestr) + SvCUR(linestr); |
917 | goto retry; |
a687059c |
918 | } |
e929a76b |
919 | #ifdef CRYPTSCRIPT |
920 | cryptswitch(); |
921 | #endif /* CRYPTSCRIPT */ |
922 | do { |
79072805 |
923 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) { |
e929a76b |
924 | fake_eof: |
395c3793 |
925 | if (rsfp) { |
926 | if (preprocess) |
79072805 |
927 | (void)my_pclose(rsfp); |
de3bb511 |
928 | else if ((FILE*)rsfp == stdin) |
395c3793 |
929 | clearerr(stdin); |
930 | else |
931 | (void)fclose(rsfp); |
932 | rsfp = Nullfp; |
933 | } |
e929a76b |
934 | if (minus_n || minus_p) { |
79072805 |
935 | sv_setpv(linestr,minus_p ? ";}continue{print" : ""); |
936 | sv_catpv(linestr,";}"); |
937 | oldoldbufptr = oldbufptr = s = SvPVn(linestr); |
938 | bufend = SvPV(linestr) + SvCUR(linestr); |
e929a76b |
939 | minus_n = minus_p = 0; |
940 | goto retry; |
941 | } |
79072805 |
942 | oldoldbufptr = oldbufptr = s = SvPVn(linestr); |
943 | sv_setpv(linestr,""); |
944 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ |
378cc40b |
945 | } |
79072805 |
946 | if (doextract && *SvPV(linestr) == '#') |
e929a76b |
947 | doextract = FALSE; |
79072805 |
948 | curcop->cop_line++; |
e929a76b |
949 | } while (doextract); |
a687059c |
950 | oldoldbufptr = oldbufptr = bufptr = s; |
951 | if (perldb) { |
79072805 |
952 | SV *sv = NEWSV(85,0); |
a687059c |
953 | |
93a17b20 |
954 | sv_upgrade(sv, SVt_PVMG); |
79072805 |
955 | sv_setsv(sv,linestr); |
956 | av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv); |
a687059c |
957 | } |
79072805 |
958 | bufend = SvPV(linestr) + SvCUR(linestr); |
959 | if (curcop->cop_line == 1) { |
960 | while (s < bufend && isSPACE(*s)) |
961 | s++; |
962 | if (*s == ':') /* for csh's that have to exec sh scripts */ |
963 | s++; |
9f68db38 |
964 | if (*s == '#' && s[1] == '!') { |
965 | if (!in_eval && !instr(s,"perl") && instr(origargv[0],"perl")) { |
966 | char **newargv; |
967 | char *cmd; |
968 | |
969 | s += 2; |
970 | if (*s == ' ') |
971 | s++; |
972 | cmd = s; |
de3bb511 |
973 | while (s < bufend && !isSPACE(*s)) |
9f68db38 |
974 | s++; |
975 | *s++ = '\0'; |
de3bb511 |
976 | while (s < bufend && isSPACE(*s)) |
9f68db38 |
977 | s++; |
978 | if (s < bufend) { |
979 | Newz(899,newargv,origargc+3,char*); |
980 | newargv[1] = s; |
de3bb511 |
981 | while (s < bufend && !isSPACE(*s)) |
9f68db38 |
982 | s++; |
983 | *s = '\0'; |
984 | Copy(origargv+1, newargv+2, origargc+1, char*); |
985 | } |
986 | else |
987 | newargv = origargv; |
988 | newargv[0] = cmd; |
989 | execv(cmd,newargv); |
990 | fatal("Can't exec %s", cmd); |
991 | } |
79072805 |
992 | if (d = instr(s, "perl -")) { |
993 | d += 6; |
994 | /*SUPPRESS 530*/ |
995 | while (d = moreswitches(d)) ; |
996 | } |
9f68db38 |
997 | } |
79072805 |
998 | } |
999 | if (in_format && lex_brackets <= 1) { |
1000 | s = scan_formline(s); |
1001 | if (!in_format) |
1002 | goto rightbracket; |
1003 | OPERATOR(';'); |
ae986130 |
1004 | } |
378cc40b |
1005 | goto retry; |
fe14fcc3 |
1006 | case ' ': case '\t': case '\f': case '\r': case 013: |
378cc40b |
1007 | s++; |
1008 | goto retry; |
378cc40b |
1009 | case '#': |
79072805 |
1010 | if (preprocess && s == SvPVn(linestr) && |
de3bb511 |
1011 | s[1] == ' ' && (isDIGIT(s[2]) || strnEQ(s+2,"line ",5)) ) { |
1012 | while (*s && !isDIGIT(*s)) |
1013 | s++; |
79072805 |
1014 | curcop->cop_line = atoi(s)-1; |
de3bb511 |
1015 | while (isDIGIT(*s)) |
1016 | s++; |
79072805 |
1017 | s = skipspace(s); |
378cc40b |
1018 | s[strlen(s)-1] = '\0'; /* wipe out newline */ |
1019 | if (*s == '"') { |
1020 | s++; |
1021 | s[strlen(s)-1] = '\0'; /* wipe out trailing quote */ |
1022 | } |
1023 | if (*s) |
79072805 |
1024 | curcop->cop_filegv = gv_fetchfile(s); |
378cc40b |
1025 | else |
79072805 |
1026 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1027 | oldoldbufptr = oldbufptr = s = SvPVn(linestr); |
378cc40b |
1028 | } |
e929a76b |
1029 | /* FALL THROUGH */ |
1030 | case '\n': |
79072805 |
1031 | if (lex_state != LEX_NORMAL || (in_eval && !rsfp)) { |
a687059c |
1032 | d = bufend; |
1033 | while (s < d && *s != '\n') |
378cc40b |
1034 | s++; |
0f85fab0 |
1035 | if (s < d) |
378cc40b |
1036 | s++; |
79072805 |
1037 | curcop->cop_line++; |
1038 | if (in_format && lex_brackets <= 1) { |
1039 | s = scan_formline(s); |
1040 | if (!in_format) |
1041 | goto rightbracket; |
1042 | OPERATOR(';'); |
a687059c |
1043 | } |
378cc40b |
1044 | } |
a687059c |
1045 | else { |
378cc40b |
1046 | *s = '\0'; |
a687059c |
1047 | bufend = s; |
1048 | } |
378cc40b |
1049 | goto retry; |
1050 | case '-': |
79072805 |
1051 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
378cc40b |
1052 | s++; |
e334a159 |
1053 | last_uni = oldbufptr; |
378cc40b |
1054 | switch (*s++) { |
79072805 |
1055 | case 'r': FTST(OP_FTEREAD); |
1056 | case 'w': FTST(OP_FTEWRITE); |
1057 | case 'x': FTST(OP_FTEEXEC); |
1058 | case 'o': FTST(OP_FTEOWNED); |
1059 | case 'R': FTST(OP_FTRREAD); |
1060 | case 'W': FTST(OP_FTRWRITE); |
1061 | case 'X': FTST(OP_FTREXEC); |
1062 | case 'O': FTST(OP_FTROWNED); |
1063 | case 'e': FTST(OP_FTIS); |
1064 | case 'z': FTST(OP_FTZERO); |
1065 | case 's': FTST(OP_FTSIZE); |
1066 | case 'f': FTST(OP_FTFILE); |
1067 | case 'd': FTST(OP_FTDIR); |
1068 | case 'l': FTST(OP_FTLINK); |
1069 | case 'p': FTST(OP_FTPIPE); |
1070 | case 'S': FTST(OP_FTSOCK); |
1071 | case 'u': FTST(OP_FTSUID); |
1072 | case 'g': FTST(OP_FTSGID); |
1073 | case 'k': FTST(OP_FTSVTX); |
1074 | case 'b': FTST(OP_FTBLK); |
1075 | case 'c': FTST(OP_FTCHR); |
1076 | case 't': FTST(OP_FTTTY); |
1077 | case 'T': FTST(OP_FTTEXT); |
1078 | case 'B': FTST(OP_FTBINARY); |
1079 | case 'M': gv_fetchpv("\024",TRUE); FTST(OP_FTMTIME); |
1080 | case 'A': gv_fetchpv("\024",TRUE); FTST(OP_FTATIME); |
1081 | case 'C': gv_fetchpv("\024",TRUE); FTST(OP_FTCTIME); |
378cc40b |
1082 | default: |
1083 | s -= 2; |
1084 | break; |
1085 | } |
1086 | } |
a687059c |
1087 | tmp = *s++; |
1088 | if (*s == tmp) { |
1089 | s++; |
79072805 |
1090 | if (expect == XOPERATOR) |
1091 | TERM(POSTDEC); |
1092 | else |
1093 | OPERATOR(PREDEC); |
1094 | } |
1095 | else if (*s == '>') { |
1096 | s++; |
1097 | s = skipspace(s); |
1098 | if (isIDFIRST(*s)) { |
1099 | /*SUPPRESS 530*/ |
1100 | for (d = s; isALNUM(*d); d++) ; |
1101 | strncpy(tokenbuf,s,d-s); |
1102 | tokenbuf[d-s] = '\0'; |
1103 | if (!keyword(tokenbuf, d - s)) |
1104 | s = force_word(s,METHOD); |
1105 | } |
1106 | PREBLOCK(ARROW); |
a687059c |
1107 | } |
79072805 |
1108 | if (expect == XOPERATOR) |
1109 | Aop(OP_SUBTRACT); |
1110 | else { |
2f3197b3 |
1111 | if (isSPACE(*s) || !isSPACE(*bufptr)) |
1112 | check_uni(); |
79072805 |
1113 | OPERATOR('-'); /* unary minus */ |
2f3197b3 |
1114 | } |
79072805 |
1115 | |
378cc40b |
1116 | case '+': |
a687059c |
1117 | tmp = *s++; |
1118 | if (*s == tmp) { |
378cc40b |
1119 | s++; |
79072805 |
1120 | if (expect == XOPERATOR) |
1121 | TERM(POSTINC); |
1122 | else |
1123 | OPERATOR(PREINC); |
378cc40b |
1124 | } |
79072805 |
1125 | if (expect == XOPERATOR) |
1126 | Aop(OP_ADD); |
1127 | else { |
2f3197b3 |
1128 | if (isSPACE(*s) || !isSPACE(*bufptr)) |
1129 | check_uni(); |
a687059c |
1130 | OPERATOR('+'); |
2f3197b3 |
1131 | } |
a687059c |
1132 | |
378cc40b |
1133 | case '*': |
79072805 |
1134 | if (expect != XOPERATOR) { |
1135 | s = scan_ident(s, bufend, tokenbuf, TRUE); |
1136 | force_ident(tokenbuf); |
1137 | TERM('*'); |
a687059c |
1138 | } |
79072805 |
1139 | s++; |
1140 | if (*s == '*') { |
a687059c |
1141 | s++; |
79072805 |
1142 | PWop(OP_POW); |
a687059c |
1143 | } |
79072805 |
1144 | Mop(OP_MULTIPLY); |
1145 | |
378cc40b |
1146 | case '%': |
79072805 |
1147 | if (expect != XOPERATOR) { |
93a17b20 |
1148 | s = scan_ident(s, bufend, tokenbuf + 1, TRUE); |
1149 | if (tokenbuf[1]) { |
1150 | tokenbuf[0] = '%'; |
1151 | if (in_my) { |
1152 | if (strchr(tokenbuf,'\'')) |
1153 | fatal("\"my\" variable %s can't be in a package",tokenbuf); |
1154 | nextval[nexttoke].opval = newOP(OP_PADHV, 0); |
1155 | nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf); |
1156 | force_next(PRIVATEREF); |
1157 | TERM('%'); |
1158 | } |
1159 | if (!strchr(tokenbuf,'\'')) { |
1160 | if (tmp = pad_findmy(tokenbuf)) { |
1161 | nextval[nexttoke].opval = newOP(OP_PADHV, 0); |
1162 | nextval[nexttoke].opval->op_targ = tmp; |
1163 | force_next(PRIVATEREF); |
1164 | TERM('%'); |
1165 | } |
1166 | } |
1167 | force_ident(tokenbuf + 1); |
1168 | } |
1169 | else |
1170 | PREREF('%'); |
79072805 |
1171 | TERM('%'); |
a687059c |
1172 | } |
79072805 |
1173 | ++s; |
1174 | Mop(OP_MODULO); |
a687059c |
1175 | |
378cc40b |
1176 | case '^': |
79072805 |
1177 | s++; |
1178 | BOop(OP_XOR); |
1179 | case '[': |
1180 | lex_brackets++; |
1181 | /* FALL THROUGH */ |
378cc40b |
1182 | case '~': |
1183 | case '(': |
1184 | case ',': |
1185 | case ':': |
378cc40b |
1186 | tmp = *s++; |
1187 | OPERATOR(tmp); |
378cc40b |
1188 | case ';': |
79072805 |
1189 | if (curcop->cop_line < copline) |
1190 | copline = curcop->cop_line; |
378cc40b |
1191 | tmp = *s++; |
1192 | OPERATOR(tmp); |
1193 | case ')': |
378cc40b |
1194 | tmp = *s++; |
1195 | TERM(tmp); |
79072805 |
1196 | case ']': |
1197 | s++; |
1198 | if (lex_state == LEX_INTERPNORMAL) { |
1199 | if (--lex_brackets == 0) { |
1200 | if (*s != '-' || s[1] != '>') |
1201 | lex_state = LEX_INTERPEND; |
1202 | } |
1203 | } |
1204 | TOKEN(']'); |
1205 | case '{': |
1206 | leftbracket: |
1207 | if (in_format == 2) |
1208 | in_format = 0; |
1209 | s++; |
1210 | lex_brackets++; |
1211 | if (expect == XTERM) |
1212 | OPERATOR(HASHBRACK); |
93a17b20 |
1213 | else if (expect == XREF) |
1214 | expect = XTERM; |
1215 | else |
1216 | expect = XBLOCK; |
79072805 |
1217 | yylval.ival = curcop->cop_line; |
1218 | if (isSPACE(*s) || *s == '#') |
1219 | copline = NOLINE; /* invalidate current command line number */ |
79072805 |
1220 | TOKEN('{'); |
378cc40b |
1221 | case '}': |
79072805 |
1222 | rightbracket: |
1223 | s++; |
1224 | if (lex_state == LEX_INTERPNORMAL) { |
1225 | if (--lex_brackets == 0) { |
1226 | if (lex_fakebrack) { |
1227 | lex_state = LEX_INTERPEND; |
1228 | bufptr = s; |
1229 | return yylex(); /* ignore fake brackets */ |
1230 | } |
1231 | if (*s != '-' || s[1] != '>') |
1232 | lex_state = LEX_INTERPEND; |
1233 | } |
1234 | } |
1235 | force_next('}'); |
1236 | TOKEN(';'); |
378cc40b |
1237 | case '&': |
1238 | s++; |
1239 | tmp = *s++; |
1240 | if (tmp == '&') |
1241 | OPERATOR(ANDAND); |
1242 | s--; |
79072805 |
1243 | if (expect == XOPERATOR) |
1244 | BAop(OP_BIT_AND); |
1245 | |
1246 | s = scan_ident(s-1, bufend, tokenbuf, TRUE); |
1247 | if (*tokenbuf) |
1248 | force_ident(tokenbuf); |
1249 | else |
1250 | PREREF('&'); |
1251 | TERM('&'); |
1252 | |
378cc40b |
1253 | case '|': |
1254 | s++; |
1255 | tmp = *s++; |
1256 | if (tmp == '|') |
1257 | OPERATOR(OROR); |
1258 | s--; |
79072805 |
1259 | BOop(OP_BIT_OR); |
378cc40b |
1260 | case '=': |
1261 | s++; |
1262 | tmp = *s++; |
1263 | if (tmp == '=') |
79072805 |
1264 | Eop(OP_EQ); |
1265 | if (tmp == '>') |
1266 | OPERATOR(','); |
378cc40b |
1267 | if (tmp == '~') |
79072805 |
1268 | PMop(OP_MATCH); |
378cc40b |
1269 | s--; |
79072805 |
1270 | if (in_format == 2 && (tmp == '\n' || s[1] == '\n')) { |
1271 | in_format = 1; |
1272 | s--; |
1273 | expect = XBLOCK; |
1274 | goto leftbracket; |
1275 | } |
378cc40b |
1276 | OPERATOR('='); |
1277 | case '!': |
1278 | s++; |
1279 | tmp = *s++; |
1280 | if (tmp == '=') |
79072805 |
1281 | Eop(OP_NE); |
378cc40b |
1282 | if (tmp == '~') |
79072805 |
1283 | PMop(OP_NOT); |
378cc40b |
1284 | s--; |
1285 | OPERATOR('!'); |
1286 | case '<': |
79072805 |
1287 | if (expect != XOPERATOR) { |
93a17b20 |
1288 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 |
1289 | check_uni(); |
79072805 |
1290 | if (s[1] == '<') |
1291 | s = scan_heredoc(s); |
1292 | else |
1293 | s = scan_inputsymbol(s); |
1294 | TERM(sublex_start()); |
378cc40b |
1295 | } |
1296 | s++; |
1297 | tmp = *s++; |
1298 | if (tmp == '<') |
79072805 |
1299 | SHop(OP_LEFT_SHIFT); |
395c3793 |
1300 | if (tmp == '=') { |
1301 | tmp = *s++; |
1302 | if (tmp == '>') |
79072805 |
1303 | Eop(OP_NCMP); |
395c3793 |
1304 | s--; |
79072805 |
1305 | Rop(OP_LE); |
395c3793 |
1306 | } |
378cc40b |
1307 | s--; |
79072805 |
1308 | Rop(OP_LT); |
378cc40b |
1309 | case '>': |
1310 | s++; |
1311 | tmp = *s++; |
1312 | if (tmp == '>') |
79072805 |
1313 | SHop(OP_RIGHT_SHIFT); |
378cc40b |
1314 | if (tmp == '=') |
79072805 |
1315 | Rop(OP_GE); |
378cc40b |
1316 | s--; |
79072805 |
1317 | Rop(OP_GT); |
378cc40b |
1318 | |
1319 | case '$': |
79072805 |
1320 | if (in_format && expect == XOPERATOR) |
1321 | OPERATOR(','); /* grandfather non-comma-format format */ |
1322 | if (s[1] == '#' && (isALPHA(s[2]) || s[2] == '_')) { |
1323 | s = scan_ident(s+1, bufend, tokenbuf, FALSE); |
1324 | force_ident(tokenbuf); |
1325 | TERM(DOLSHARP); |
1326 | } |
93a17b20 |
1327 | s = scan_ident(s, bufend, tokenbuf+1, FALSE); |
1328 | if (tokenbuf[1]) { |
1329 | tokenbuf[0] = '$'; |
1330 | if (dowarn && *s == '[') { |
1331 | char *t; |
1332 | for (t = s+1; isSPACE(*t) || isALNUM(*t) || *t == '$'; t++) ; |
1333 | if (*t++ == ',') { |
1334 | bufptr = skipspace(bufptr); |
1335 | while (t < bufend && *t != ']') t++; |
1336 | warn("Multidimensional syntax %.*s not supported", |
1337 | t-bufptr+1, bufptr); |
1338 | } |
1339 | } |
1340 | if (in_my) { |
1341 | if (strchr(tokenbuf,'\'')) |
1342 | fatal("\"my\" variable %s can't be in a package",tokenbuf); |
1343 | nextval[nexttoke].opval = newOP(OP_PADSV, 0); |
1344 | nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf); |
1345 | force_next(PRIVATEREF); |
1346 | } |
1347 | else if (!strchr(tokenbuf,'\'')) { |
1348 | I32 optype = OP_PADSV; |
1349 | if (*s == '[') { |
1350 | tokenbuf[0] = '@'; |
1351 | optype = OP_PADAV; |
1352 | } |
1353 | else if (*s == '{') { |
1354 | tokenbuf[0] = '%'; |
1355 | optype = OP_PADHV; |
1356 | } |
1357 | if (tmp = pad_findmy(tokenbuf)) { |
1358 | nextval[nexttoke].opval = newOP(optype, 0); |
1359 | nextval[nexttoke].opval->op_targ = tmp; |
1360 | force_next(PRIVATEREF); |
1361 | } |
1362 | else |
1363 | force_ident(tokenbuf+1); |
1364 | } |
1365 | else |
1366 | force_ident(tokenbuf+1); |
1367 | } |
79072805 |
1368 | else |
1369 | PREREF('$'); |
1370 | expect = XOPERATOR; |
1371 | if (lex_state == LEX_NORMAL && |
1372 | *tokenbuf && |
1373 | isSPACE(*s) && |
1374 | oldoldbufptr && |
1375 | oldoldbufptr < bufptr) |
1376 | { |
2f3197b3 |
1377 | s++; |
1378 | while (isSPACE(*oldoldbufptr)) |
1379 | oldoldbufptr++; |
1380 | if (*oldoldbufptr == 'p' && strnEQ(oldoldbufptr,"print",5)) { |
93a17b20 |
1381 | if (strchr("&*<%", *s) && isIDFIRST(s[1])) |
79072805 |
1382 | expect = XTERM; /* e.g. print $fh &sub */ |
2f3197b3 |
1383 | else if (*s == '.' && isDIGIT(s[1])) |
79072805 |
1384 | expect = XTERM; /* e.g. print $fh .3 */ |
93a17b20 |
1385 | else if (strchr("/?-+", *s) && !isSPACE(s[1])) |
79072805 |
1386 | expect = XTERM; /* e.g. print $fh -1 */ |
2f3197b3 |
1387 | } |
1388 | } |
79072805 |
1389 | TOKEN('$'); |
378cc40b |
1390 | |
1391 | case '@': |
93a17b20 |
1392 | s = scan_ident(s, bufend, tokenbuf+1, FALSE); |
1393 | if (tokenbuf[1]) { |
1394 | tokenbuf[0] = '@'; |
1395 | if (in_my) { |
1396 | if (strchr(tokenbuf,'\'')) |
1397 | fatal("\"my\" variable %s can't be in a package",tokenbuf); |
1398 | nextval[nexttoke].opval = newOP(OP_PADAV, 0); |
1399 | nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf); |
1400 | force_next(PRIVATEREF); |
1401 | TERM('@'); |
1402 | } |
1403 | else if (!strchr(tokenbuf,'\'')) { |
1404 | I32 optype = OP_PADAV; |
1405 | if (*s == '{') { |
1406 | tokenbuf[0] = '%'; |
1407 | optype = OP_PADHV; |
1408 | } |
1409 | if (tmp = pad_findmy(tokenbuf)) { |
1410 | nextval[nexttoke].opval = newOP(optype, 0); |
1411 | nextval[nexttoke].opval->op_targ = tmp; |
1412 | force_next(PRIVATEREF); |
1413 | TERM('@'); |
1414 | } |
1415 | } |
1416 | if (dowarn && *s == '[') { |
1417 | char *t; |
1418 | for (t = s+1; isSPACE(*t) || isALNUM(*t) || *t == '$'; t++) ; |
1419 | if (*t++ == ']') { |
1420 | bufptr = skipspace(bufptr); |
1421 | warn("Scalar value %.*s better written as $%.*s", |
1422 | t-bufptr, bufptr, t-bufptr-1, bufptr+1); |
1423 | } |
1424 | } |
1425 | force_ident(tokenbuf+1); |
1426 | } |
79072805 |
1427 | else |
1428 | PREREF('@'); |
1429 | TERM('@'); |
378cc40b |
1430 | |
1431 | case '/': /* may either be division or pattern */ |
1432 | case '?': /* may either be conditional or pattern */ |
79072805 |
1433 | if (expect != XOPERATOR) { |
2f3197b3 |
1434 | check_uni(); |
79072805 |
1435 | s = scan_pat(s); |
1436 | TERM(sublex_start()); |
378cc40b |
1437 | } |
1438 | tmp = *s++; |
a687059c |
1439 | if (tmp == '/') |
79072805 |
1440 | Mop(OP_DIVIDE); |
378cc40b |
1441 | OPERATOR(tmp); |
1442 | |
1443 | case '.': |
79072805 |
1444 | if (in_format == 2) { |
1445 | in_format = 0; |
1446 | goto rightbracket; |
1447 | } |
1448 | if (expect == XOPERATOR || !isDIGIT(s[1])) { |
378cc40b |
1449 | tmp = *s++; |
a687059c |
1450 | if (*s == tmp) { |
1451 | s++; |
2f3197b3 |
1452 | if (*s == tmp) { |
1453 | s++; |
79072805 |
1454 | yylval.ival = OPf_SPECIAL; |
2f3197b3 |
1455 | } |
1456 | else |
79072805 |
1457 | yylval.ival = 0; |
378cc40b |
1458 | OPERATOR(DOTDOT); |
a687059c |
1459 | } |
79072805 |
1460 | if (expect != XOPERATOR) |
2f3197b3 |
1461 | check_uni(); |
79072805 |
1462 | Aop(OP_CONCAT); |
378cc40b |
1463 | } |
1464 | /* FALL THROUGH */ |
1465 | case '0': case '1': case '2': case '3': case '4': |
1466 | case '5': case '6': case '7': case '8': case '9': |
79072805 |
1467 | s = scan_num(s); |
1468 | TERM(THING); |
1469 | |
1470 | case '\'': |
1471 | if (in_format && expect == XOPERATOR) |
1472 | OPERATOR(','); /* grandfather non-comma-format format */ |
1473 | s = scan_str(s); |
1474 | if (!s) |
1475 | fatal("EOF in string"); |
1476 | yylval.ival = OP_CONST; |
1477 | TERM(sublex_start()); |
1478 | |
1479 | case '"': |
1480 | if (in_format && expect == XOPERATOR) |
1481 | OPERATOR(','); /* grandfather non-comma-format format */ |
1482 | s = scan_str(s); |
1483 | if (!s) |
1484 | fatal("EOF in string"); |
1485 | yylval.ival = OP_SCALAR; |
1486 | TERM(sublex_start()); |
1487 | |
1488 | case '`': |
1489 | s = scan_str(s); |
1490 | if (!s) |
1491 | fatal("EOF in backticks"); |
1492 | yylval.ival = OP_BACKTICK; |
1493 | set_csh(); |
1494 | TERM(sublex_start()); |
1495 | |
1496 | case '\\': |
1497 | s++; |
1498 | OPERATOR(REFGEN); |
1499 | |
1500 | case 'x': |
1501 | if (isDIGIT(s[1]) && expect == XOPERATOR) { |
1502 | s++; |
1503 | Mop(OP_REPEAT); |
2f3197b3 |
1504 | } |
79072805 |
1505 | goto keylookup; |
1506 | |
378cc40b |
1507 | case '_': |
79072805 |
1508 | case 'a': case 'A': |
1509 | case 'b': case 'B': |
1510 | case 'c': case 'C': |
1511 | case 'd': case 'D': |
1512 | case 'e': case 'E': |
1513 | case 'f': case 'F': |
1514 | case 'g': case 'G': |
1515 | case 'h': case 'H': |
1516 | case 'i': case 'I': |
1517 | case 'j': case 'J': |
1518 | case 'k': case 'K': |
1519 | case 'l': case 'L': |
1520 | case 'm': case 'M': |
1521 | case 'n': case 'N': |
1522 | case 'o': case 'O': |
1523 | case 'p': case 'P': |
1524 | case 'q': case 'Q': |
1525 | case 'r': case 'R': |
1526 | case 's': case 'S': |
1527 | case 't': case 'T': |
1528 | case 'u': case 'U': |
1529 | case 'v': case 'V': |
1530 | case 'w': case 'W': |
1531 | case 'X': |
1532 | case 'y': case 'Y': |
1533 | case 'z': case 'Z': |
1534 | |
1535 | keylookup: |
1536 | d = tokenbuf; |
378cc40b |
1537 | SNARFWORD; |
e929a76b |
1538 | |
79072805 |
1539 | switch (tmp = keyword(tokenbuf, d - tokenbuf)) { |
1540 | |
1541 | default: /* not a keyword */ |
93a17b20 |
1542 | just_a_word: { |
1543 | GV *gv; |
1544 | while (*s == '\'' && isIDFIRST(s[1])) { |
1545 | *d++ = *s++; |
1546 | SNARFWORD; |
395c3793 |
1547 | } |
93a17b20 |
1548 | if (expect == XBLOCK) { /* special case: start of statement */ |
1549 | while (isSPACE(*s)) s++; |
1550 | if (*s == ':') { |
1551 | yylval.pval = savestr(tokenbuf); |
1552 | s++; |
1553 | CLINE; |
1554 | TOKEN(LABEL); |
1555 | } |
1556 | } |
1557 | gv = gv_fetchpv(tokenbuf,FALSE); |
1558 | if (gv && GvCV(gv)) { |
1559 | nextval[nexttoke].opval = |
1560 | (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); |
1561 | nextval[nexttoke].opval->op_private = OPpCONST_BARE; |
1562 | force_next(WORD); |
1563 | TERM(NOAMP); |
1564 | } |
1565 | expect = XOPERATOR; |
1566 | if (oldoldbufptr && oldoldbufptr < bufptr) { |
1567 | if (oldoldbufptr == last_lop) { |
1568 | expect = XTERM; |
1569 | CLINE; |
1570 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
1571 | newSVpv(tokenbuf,0)); |
1572 | yylval.opval->op_private = OPpCONST_BARE; |
1573 | for (d = tokenbuf; *d && isLOWER(*d); d++) ; |
1574 | if (dowarn && !*d) |
1575 | warn( |
1576 | "\"%s\" may clash with future reserved word", |
1577 | tokenbuf ); |
1578 | TOKEN(WORD); |
1579 | } |
1580 | } |
1581 | while (s < bufend && isSPACE(*s)) |
1582 | s++; |
1583 | if (*s == '(') { |
79072805 |
1584 | CLINE; |
93a17b20 |
1585 | nextval[nexttoke].opval = |
1586 | (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); |
1587 | nextval[nexttoke].opval->op_private = OPpCONST_BARE; |
1588 | force_next(WORD); |
1589 | TERM('&'); |
79072805 |
1590 | } |
79072805 |
1591 | CLINE; |
93a17b20 |
1592 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); |
1593 | yylval.opval->op_private = OPpCONST_BARE; |
1594 | |
1595 | if (*s == '$' || *s == '{') |
1596 | PREBLOCK(METHOD); |
1597 | |
1598 | for (d = tokenbuf; *d && isLOWER(*d); d++) ; |
1599 | if (dowarn && !*d) |
1600 | warn( |
1601 | "\"%s\" may clash with future reserved word", |
1602 | tokenbuf ); |
1603 | TOKEN(WORD); |
79072805 |
1604 | } |
79072805 |
1605 | |
1606 | case KEY___LINE__: |
1607 | case KEY___FILE__: { |
1608 | if (tokenbuf[2] == 'L') |
1609 | (void)sprintf(tokenbuf,"%ld",(long)curcop->cop_line); |
1610 | else |
1611 | strcpy(tokenbuf, SvPV(GvSV(curcop->cop_filegv))); |
1612 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); |
1613 | TERM(THING); |
1614 | } |
1615 | |
1616 | case KEY___END__: { |
1617 | GV *gv; |
1618 | int fd; |
1619 | |
1620 | /*SUPPRESS 560*/ |
1621 | if (!in_eval && (gv = gv_fetchpv("DATA",FALSE))) { |
1622 | SvMULTI_on(gv); |
1623 | if (!GvIO(gv)) |
1624 | GvIO(gv) = newIO(); |
1625 | GvIO(gv)->ifp = rsfp; |
1626 | #if defined(HAS_FCNTL) && defined(FFt_SETFD) |
1627 | fd = fileno(rsfp); |
1628 | fcntl(fd,FFt_SETFD,fd >= 3); |
1629 | #endif |
1630 | if (preprocess) |
1631 | GvIO(gv)->type = '|'; |
1632 | else if ((FILE*)rsfp == stdin) |
1633 | GvIO(gv)->type = '-'; |
1634 | else |
1635 | GvIO(gv)->type = '<'; |
1636 | rsfp = Nullfp; |
1637 | } |
1638 | goto fake_eof; |
e929a76b |
1639 | } |
de3bb511 |
1640 | |
79072805 |
1641 | case KEY_BEGIN: |
1642 | case KEY_END: |
1643 | s = skipspace(s); |
93a17b20 |
1644 | if (expect == XBLOCK && (minus_p || minus_n || *s == '{' )) { |
1645 | s = bufptr; |
1646 | goto really_sub; |
79072805 |
1647 | } |
1648 | goto just_a_word; |
1649 | |
1650 | case KEY_alarm: |
1651 | UNI(OP_ALARM); |
1652 | |
1653 | case KEY_accept: |
1654 | LOP(OP_ACCEPT); |
1655 | |
1656 | case KEY_atan2: |
1657 | LOP(OP_ATAN2); |
1658 | |
1659 | case KEY_bind: |
1660 | LOP(OP_BIND); |
1661 | |
1662 | case KEY_binmode: |
1663 | UNI(OP_BINMODE); |
1664 | |
1665 | case KEY_bless: |
1666 | UNI(OP_BLESS); |
1667 | |
1668 | case KEY_chop: |
1669 | UNI(OP_CHOP); |
1670 | |
1671 | case KEY_continue: |
1672 | PREBLOCK(CONTINUE); |
1673 | |
1674 | case KEY_chdir: |
1675 | (void)gv_fetchpv("ENV",TRUE); /* may use HOME */ |
1676 | UNI(OP_CHDIR); |
1677 | |
1678 | case KEY_close: |
1679 | UNI(OP_CLOSE); |
1680 | |
1681 | case KEY_closedir: |
1682 | UNI(OP_CLOSEDIR); |
1683 | |
1684 | case KEY_cmp: |
1685 | Eop(OP_SCMP); |
1686 | |
1687 | case KEY_caller: |
1688 | UNI(OP_CALLER); |
1689 | |
1690 | case KEY_crypt: |
1691 | #ifdef FCRYPT |
de3bb511 |
1692 | if (!cryptseen++) |
1693 | init_des(); |
a687059c |
1694 | #endif |
79072805 |
1695 | LOP(OP_CRYPT); |
1696 | |
1697 | case KEY_chmod: |
93a17b20 |
1698 | s = skipspace(s); |
1699 | if (dowarn && *s != '0' && isDIGIT(*s)) |
1700 | warn("chmod: mode argument is missing initial 0"); |
79072805 |
1701 | LOP(OP_CHMOD); |
1702 | |
1703 | case KEY_chown: |
1704 | LOP(OP_CHOWN); |
1705 | |
1706 | case KEY_connect: |
1707 | LOP(OP_CONNECT); |
1708 | |
1709 | case KEY_cos: |
1710 | UNI(OP_COS); |
1711 | |
1712 | case KEY_chroot: |
1713 | UNI(OP_CHROOT); |
1714 | |
1715 | case KEY_do: |
1716 | s = skipspace(s); |
1717 | if (*s == '{') |
1718 | PREBLOCK(DO); |
1719 | if (*s != '\'') |
1720 | s = force_word(s,WORD); |
378cc40b |
1721 | OPERATOR(DO); |
79072805 |
1722 | |
1723 | case KEY_die: |
1724 | LOP(OP_DIE); |
1725 | |
1726 | case KEY_defined: |
1727 | UNI(OP_DEFINED); |
1728 | |
1729 | case KEY_delete: |
1730 | OPERATOR(DELETE); |
1731 | |
1732 | case KEY_dbmopen: |
1733 | LOP(OP_DBMOPEN); |
1734 | |
1735 | case KEY_dbmclose: |
1736 | UNI(OP_DBMCLOSE); |
1737 | |
1738 | case KEY_dump: |
1739 | LOOPX(OP_DUMP); |
1740 | |
1741 | case KEY_else: |
1742 | PREBLOCK(ELSE); |
1743 | |
1744 | case KEY_elsif: |
1745 | yylval.ival = curcop->cop_line; |
1746 | OPERATOR(ELSIF); |
1747 | |
1748 | case KEY_eq: |
1749 | Eop(OP_SEQ); |
1750 | |
1751 | case KEY_exit: |
1752 | UNI(OP_EXIT); |
1753 | |
1754 | case KEY_eval: |
1755 | allgvs = TRUE; /* must initialize everything since */ |
1756 | s = skipspace(s); |
1757 | expect = (*s == '{') ? XBLOCK : XTERM; |
1758 | UNIBRACK(OP_ENTEREVAL); /* we don't know what will be used */ |
1759 | |
1760 | case KEY_eof: |
1761 | UNI(OP_EOF); |
1762 | |
1763 | case KEY_exp: |
1764 | UNI(OP_EXP); |
1765 | |
1766 | case KEY_each: |
1767 | UNI(OP_EACH); |
1768 | |
1769 | case KEY_exec: |
1770 | set_csh(); |
1771 | LOP(OP_EXEC); |
1772 | |
1773 | case KEY_endhostent: |
1774 | FUN0(OP_EHOSTENT); |
1775 | |
1776 | case KEY_endnetent: |
1777 | FUN0(OP_ENETENT); |
1778 | |
1779 | case KEY_endservent: |
1780 | FUN0(OP_ESERVENT); |
1781 | |
1782 | case KEY_endprotoent: |
1783 | FUN0(OP_EPROTOENT); |
1784 | |
1785 | case KEY_endpwent: |
1786 | FUN0(OP_EPWENT); |
1787 | |
1788 | case KEY_endgrent: |
1789 | FUN0(OP_EGRENT); |
1790 | |
1791 | case KEY_for: |
1792 | case KEY_foreach: |
1793 | yylval.ival = curcop->cop_line; |
1794 | while (s < bufend && isSPACE(*s)) |
1795 | s++; |
1796 | if (isIDFIRST(*s)) |
1797 | fatal("Missing $ on loop variable"); |
1798 | OPERATOR(FOR); |
1799 | |
1800 | case KEY_formline: |
1801 | LOP(OP_FORMLINE); |
1802 | |
1803 | case KEY_fork: |
1804 | FUN0(OP_FORK); |
1805 | |
1806 | case KEY_fcntl: |
1807 | LOP(OP_FCNTL); |
1808 | |
1809 | case KEY_fileno: |
1810 | UNI(OP_FILENO); |
1811 | |
1812 | case KEY_flock: |
1813 | LOP(OP_FLOCK); |
1814 | |
1815 | case KEY_gt: |
1816 | Rop(OP_SGT); |
1817 | |
1818 | case KEY_ge: |
1819 | Rop(OP_SGE); |
1820 | |
1821 | case KEY_grep: |
1822 | LOP(OP_GREPSTART); |
1823 | |
1824 | case KEY_goto: |
1825 | LOOPX(OP_GOTO); |
1826 | |
1827 | case KEY_gmtime: |
1828 | UNI(OP_GMTIME); |
1829 | |
1830 | case KEY_getc: |
1831 | UNI(OP_GETC); |
1832 | |
1833 | case KEY_getppid: |
1834 | FUN0(OP_GETPPID); |
1835 | |
1836 | case KEY_getpgrp: |
1837 | UNI(OP_GETPGRP); |
1838 | |
1839 | case KEY_getpriority: |
1840 | LOP(OP_GETPRIORITY); |
1841 | |
1842 | case KEY_getprotobyname: |
1843 | UNI(OP_GPBYNAME); |
1844 | |
1845 | case KEY_getprotobynumber: |
1846 | LOP(OP_GPBYNUMBER); |
1847 | |
1848 | case KEY_getprotoent: |
1849 | FUN0(OP_GPROTOENT); |
1850 | |
1851 | case KEY_getpwent: |
1852 | FUN0(OP_GPWENT); |
1853 | |
1854 | case KEY_getpwnam: |
1855 | FUN1(OP_GPWNAM); |
1856 | |
1857 | case KEY_getpwuid: |
1858 | FUN1(OP_GPWUID); |
1859 | |
1860 | case KEY_getpeername: |
1861 | UNI(OP_GETPEERNAME); |
1862 | |
1863 | case KEY_gethostbyname: |
1864 | UNI(OP_GHBYNAME); |
1865 | |
1866 | case KEY_gethostbyaddr: |
1867 | LOP(OP_GHBYADDR); |
1868 | |
1869 | case KEY_gethostent: |
1870 | FUN0(OP_GHOSTENT); |
1871 | |
1872 | case KEY_getnetbyname: |
1873 | UNI(OP_GNBYNAME); |
1874 | |
1875 | case KEY_getnetbyaddr: |
1876 | LOP(OP_GNBYADDR); |
1877 | |
1878 | case KEY_getnetent: |
1879 | FUN0(OP_GNETENT); |
1880 | |
1881 | case KEY_getservbyname: |
1882 | LOP(OP_GSBYNAME); |
1883 | |
1884 | case KEY_getservbyport: |
1885 | LOP(OP_GSBYPORT); |
1886 | |
1887 | case KEY_getservent: |
1888 | FUN0(OP_GSERVENT); |
1889 | |
1890 | case KEY_getsockname: |
1891 | UNI(OP_GETSOCKNAME); |
1892 | |
1893 | case KEY_getsockopt: |
1894 | LOP(OP_GSOCKOPT); |
1895 | |
1896 | case KEY_getgrent: |
1897 | FUN0(OP_GGRENT); |
1898 | |
1899 | case KEY_getgrnam: |
1900 | FUN1(OP_GGRNAM); |
1901 | |
1902 | case KEY_getgrgid: |
1903 | FUN1(OP_GGRGID); |
1904 | |
1905 | case KEY_getlogin: |
1906 | FUN0(OP_GETLOGIN); |
1907 | |
93a17b20 |
1908 | case KEY_glob: |
1909 | UNI(OP_GLOB); |
1910 | |
79072805 |
1911 | case KEY_hex: |
1912 | UNI(OP_HEX); |
1913 | |
1914 | case KEY_if: |
1915 | yylval.ival = curcop->cop_line; |
1916 | OPERATOR(IF); |
1917 | |
1918 | case KEY_index: |
1919 | LOP(OP_INDEX); |
1920 | |
1921 | case KEY_int: |
1922 | UNI(OP_INT); |
1923 | |
1924 | case KEY_ioctl: |
1925 | LOP(OP_IOCTL); |
1926 | |
1927 | case KEY_join: |
1928 | LOP(OP_JOIN); |
1929 | |
1930 | case KEY_keys: |
1931 | UNI(OP_KEYS); |
1932 | |
1933 | case KEY_kill: |
1934 | LOP(OP_KILL); |
1935 | |
1936 | case KEY_last: |
1937 | LOOPX(OP_LAST); |
1938 | |
1939 | case KEY_lc: |
1940 | UNI(OP_LC); |
1941 | |
1942 | case KEY_lcfirst: |
1943 | UNI(OP_LCFIRST); |
1944 | |
1945 | case KEY_local: |
93a17b20 |
1946 | yylval.ival = 0; |
79072805 |
1947 | OPERATOR(LOCAL); |
1948 | |
1949 | case KEY_length: |
1950 | UNI(OP_LENGTH); |
1951 | |
1952 | case KEY_lt: |
1953 | Rop(OP_SLT); |
1954 | |
1955 | case KEY_le: |
1956 | Rop(OP_SLE); |
1957 | |
1958 | case KEY_localtime: |
1959 | UNI(OP_LOCALTIME); |
1960 | |
1961 | case KEY_log: |
1962 | UNI(OP_LOG); |
1963 | |
1964 | case KEY_link: |
1965 | LOP(OP_LINK); |
1966 | |
1967 | case KEY_listen: |
1968 | LOP(OP_LISTEN); |
1969 | |
1970 | case KEY_lstat: |
1971 | UNI(OP_LSTAT); |
1972 | |
1973 | case KEY_m: |
1974 | s = scan_pat(s); |
1975 | TERM(sublex_start()); |
1976 | |
1977 | case KEY_mkdir: |
1978 | LOP(OP_MKDIR); |
1979 | |
1980 | case KEY_msgctl: |
1981 | LOP(OP_MSGCTL); |
1982 | |
1983 | case KEY_msgget: |
1984 | LOP(OP_MSGGET); |
1985 | |
1986 | case KEY_msgrcv: |
1987 | LOP(OP_MSGRCV); |
1988 | |
1989 | case KEY_msgsnd: |
1990 | LOP(OP_MSGSND); |
1991 | |
93a17b20 |
1992 | case KEY_my: |
1993 | in_my = TRUE; |
1994 | yylval.ival = 1; |
1995 | OPERATOR(LOCAL); |
1996 | |
79072805 |
1997 | case KEY_next: |
1998 | LOOPX(OP_NEXT); |
1999 | |
2000 | case KEY_ne: |
2001 | Eop(OP_SNE); |
2002 | |
2003 | case KEY_open: |
93a17b20 |
2004 | s = skipspace(s); |
2005 | if (isIDFIRST(*s)) { |
2006 | char *t; |
2007 | for (d = s; isALNUM(*d); d++) ; |
2008 | t = skipspace(d); |
2009 | if (strchr("|&*+-=!?:.", *t)) |
2010 | warn("Precedence problem: open %.*s should be open(%.*s)", |
2011 | d-s,s, d-s,s); |
2012 | } |
79072805 |
2013 | LOP(OP_OPEN); |
2014 | |
2015 | case KEY_ord: |
2016 | UNI(OP_ORD); |
2017 | |
2018 | case KEY_oct: |
2019 | UNI(OP_OCT); |
2020 | |
2021 | case KEY_opendir: |
2022 | LOP(OP_OPEN_DIR); |
2023 | |
2024 | case KEY_print: |
2025 | checkcomma(s,tokenbuf,"filehandle"); |
2026 | LOP(OP_PRINT); |
2027 | |
2028 | case KEY_printf: |
2029 | checkcomma(s,tokenbuf,"filehandle"); |
2030 | LOP(OP_PRTF); |
2031 | |
2032 | case KEY_push: |
2033 | LOP(OP_PUSH); |
2034 | |
2035 | case KEY_pop: |
2036 | UNI(OP_POP); |
2037 | |
2038 | case KEY_pack: |
2039 | LOP(OP_PACK); |
2040 | |
2041 | case KEY_package: |
2042 | s = force_word(s,WORD); |
2043 | OPERATOR(PACKAGE); |
2044 | |
2045 | case KEY_pipe: |
2046 | LOP(OP_PIPE_OP); |
2047 | |
2048 | case KEY_q: |
2049 | s = scan_str(s); |
2050 | if (!s) |
2051 | fatal("EOF in string"); |
2052 | yylval.ival = OP_CONST; |
2053 | TERM(sublex_start()); |
2054 | |
2055 | case KEY_qq: |
2056 | s = scan_str(s); |
2057 | if (!s) |
2058 | fatal("EOF in string"); |
2059 | yylval.ival = OP_SCALAR; |
2060 | if (SvSTORAGE(lex_stuff) == '\'') |
2061 | SvSTORAGE(lex_stuff) = 0; /* qq'$foo' should intepolate */ |
2062 | TERM(sublex_start()); |
2063 | |
2064 | case KEY_qx: |
2065 | s = scan_str(s); |
2066 | if (!s) |
2067 | fatal("EOF in string"); |
2068 | yylval.ival = OP_BACKTICK; |
2069 | set_csh(); |
2070 | TERM(sublex_start()); |
2071 | |
2072 | case KEY_return: |
2073 | OLDLOP(OP_RETURN); |
2074 | |
2075 | case KEY_require: |
2076 | allgvs = TRUE; /* must initialize everything since */ |
2077 | UNI(OP_REQUIRE); /* we don't know what will be used */ |
2078 | |
2079 | case KEY_reset: |
2080 | UNI(OP_RESET); |
2081 | |
2082 | case KEY_redo: |
2083 | LOOPX(OP_REDO); |
2084 | |
2085 | case KEY_rename: |
2086 | LOP(OP_RENAME); |
2087 | |
2088 | case KEY_rand: |
2089 | UNI(OP_RAND); |
2090 | |
2091 | case KEY_rmdir: |
2092 | UNI(OP_RMDIR); |
2093 | |
2094 | case KEY_rindex: |
2095 | LOP(OP_RINDEX); |
2096 | |
2097 | case KEY_read: |
2098 | LOP(OP_READ); |
2099 | |
2100 | case KEY_readdir: |
2101 | UNI(OP_READDIR); |
2102 | |
93a17b20 |
2103 | case KEY_readline: |
2104 | set_csh(); |
2105 | UNI(OP_READLINE); |
2106 | |
2107 | case KEY_readpipe: |
2108 | set_csh(); |
2109 | UNI(OP_BACKTICK); |
2110 | |
79072805 |
2111 | case KEY_rewinddir: |
2112 | UNI(OP_REWINDDIR); |
2113 | |
2114 | case KEY_recv: |
2115 | LOP(OP_RECV); |
2116 | |
2117 | case KEY_reverse: |
2118 | LOP(OP_REVERSE); |
2119 | |
2120 | case KEY_readlink: |
2121 | UNI(OP_READLINK); |
2122 | |
2123 | case KEY_ref: |
2124 | UNI(OP_REF); |
2125 | |
2126 | case KEY_s: |
2127 | s = scan_subst(s); |
2128 | if (yylval.opval) |
2129 | TERM(sublex_start()); |
2130 | else |
2131 | TOKEN(1); /* force error */ |
2132 | |
2133 | case KEY_scalar: |
2134 | UNI(OP_SCALAR); |
2135 | |
2136 | case KEY_select: |
2137 | LOP(OP_SELECT); |
2138 | |
2139 | case KEY_seek: |
2140 | LOP(OP_SEEK); |
2141 | |
2142 | case KEY_semctl: |
2143 | LOP(OP_SEMCTL); |
2144 | |
2145 | case KEY_semget: |
2146 | LOP(OP_SEMGET); |
2147 | |
2148 | case KEY_semop: |
2149 | LOP(OP_SEMOP); |
2150 | |
2151 | case KEY_send: |
2152 | LOP(OP_SEND); |
2153 | |
2154 | case KEY_setpgrp: |
2155 | LOP(OP_SETPGRP); |
2156 | |
2157 | case KEY_setpriority: |
2158 | LOP(OP_SETPRIORITY); |
2159 | |
2160 | case KEY_sethostent: |
2161 | FUN1(OP_SHOSTENT); |
2162 | |
2163 | case KEY_setnetent: |
2164 | FUN1(OP_SNETENT); |
2165 | |
2166 | case KEY_setservent: |
2167 | FUN1(OP_SSERVENT); |
2168 | |
2169 | case KEY_setprotoent: |
2170 | FUN1(OP_SPROTOENT); |
2171 | |
2172 | case KEY_setpwent: |
2173 | FUN0(OP_SPWENT); |
2174 | |
2175 | case KEY_setgrent: |
2176 | FUN0(OP_SGRENT); |
2177 | |
2178 | case KEY_seekdir: |
2179 | LOP(OP_SEEKDIR); |
2180 | |
2181 | case KEY_setsockopt: |
2182 | LOP(OP_SSOCKOPT); |
2183 | |
2184 | case KEY_shift: |
2185 | UNI(OP_SHIFT); |
2186 | |
2187 | case KEY_shmctl: |
2188 | LOP(OP_SHMCTL); |
2189 | |
2190 | case KEY_shmget: |
2191 | LOP(OP_SHMGET); |
2192 | |
2193 | case KEY_shmread: |
2194 | LOP(OP_SHMREAD); |
2195 | |
2196 | case KEY_shmwrite: |
2197 | LOP(OP_SHMWRITE); |
2198 | |
2199 | case KEY_shutdown: |
2200 | LOP(OP_SHUTDOWN); |
2201 | |
2202 | case KEY_sin: |
2203 | UNI(OP_SIN); |
2204 | |
2205 | case KEY_sleep: |
2206 | UNI(OP_SLEEP); |
2207 | |
2208 | case KEY_socket: |
2209 | LOP(OP_SOCKET); |
2210 | |
2211 | case KEY_socketpair: |
2212 | LOP(OP_SOCKPAIR); |
2213 | |
2214 | case KEY_sort: |
2215 | checkcomma(s,tokenbuf,"subroutine name"); |
2216 | s = skipspace(s); |
2217 | if (*s == ';' || *s == ')') /* probably a close */ |
2218 | fatal("sort is now a reserved word"); |
2219 | if (isIDFIRST(*s)) { |
2220 | /*SUPPRESS 530*/ |
2221 | for (d = s; isALNUM(*d); d++) ; |
2222 | strncpy(tokenbuf,s,d-s); |
2223 | tokenbuf[d-s] = '\0'; |
2224 | if (!keyword(tokenbuf, d - s) || strEQ(tokenbuf,"reverse")) |
2225 | s = force_word(s,WORD); |
2226 | } |
2227 | LOP(OP_SORT); |
2228 | |
2229 | case KEY_split: |
2230 | LOP(OP_SPLIT); |
2231 | |
2232 | case KEY_sprintf: |
2233 | LOP(OP_SPRINTF); |
2234 | |
2235 | case KEY_splice: |
2236 | LOP(OP_SPLICE); |
2237 | |
2238 | case KEY_sqrt: |
2239 | UNI(OP_SQRT); |
2240 | |
2241 | case KEY_srand: |
2242 | UNI(OP_SRAND); |
2243 | |
2244 | case KEY_stat: |
2245 | UNI(OP_STAT); |
2246 | |
2247 | case KEY_study: |
2248 | sawstudy++; |
2249 | UNI(OP_STUDY); |
2250 | |
2251 | case KEY_substr: |
2252 | LOP(OP_SUBSTR); |
2253 | |
2254 | case KEY_format: |
2255 | case KEY_sub: |
93a17b20 |
2256 | really_sub: |
79072805 |
2257 | yylval.ival = savestack_ix; /* restore stuff on reduce */ |
2258 | save_I32(&subline); |
2259 | save_item(subname); |
2260 | SAVEINT(padix); |
2261 | SAVESPTR(curpad); |
2262 | SAVESPTR(comppad); |
93a17b20 |
2263 | SAVESPTR(comppadname); |
2264 | SAVEINT(comppadnamefill); |
79072805 |
2265 | comppad = newAV(); |
93a17b20 |
2266 | comppadname = newAV(); |
2267 | comppadnamefill = -1; |
79072805 |
2268 | av_push(comppad, Nullsv); |
2269 | curpad = AvARRAY(comppad); |
2270 | padix = 0; |
2271 | |
2272 | subline = curcop->cop_line; |
2273 | s = skipspace(s); |
2274 | if (isIDFIRST(*s) || *s == '\'') { |
2275 | sv_setsv(subname,curstname); |
2276 | sv_catpvn(subname,"'",1); |
2277 | for (d = s+1; isALNUM(*d) || *d == '\''; d++) |
2278 | /*SUPPRESS 530*/ |
2279 | ; |
2280 | if (d[-1] == '\'') |
2281 | d--; |
2282 | sv_catpvn(subname,s,d-s); |
2283 | s = force_word(s,WORD); |
2284 | } |
2285 | else |
2286 | sv_setpv(subname,"?"); |
2287 | |
93a17b20 |
2288 | if (tmp != KEY_format) |
79072805 |
2289 | PREBLOCK(SUB); |
2290 | |
2291 | in_format = 2; |
2292 | lex_brackets = 0; |
2293 | OPERATOR(FORMAT); |
2294 | |
2295 | case KEY_system: |
2296 | set_csh(); |
2297 | LOP(OP_SYSTEM); |
2298 | |
2299 | case KEY_symlink: |
2300 | LOP(OP_SYMLINK); |
2301 | |
2302 | case KEY_syscall: |
2303 | LOP(OP_SYSCALL); |
2304 | |
2305 | case KEY_sysread: |
2306 | LOP(OP_SYSREAD); |
2307 | |
2308 | case KEY_syswrite: |
2309 | LOP(OP_SYSWRITE); |
2310 | |
2311 | case KEY_tr: |
2312 | s = scan_trans(s); |
2313 | TERM(sublex_start()); |
2314 | |
2315 | case KEY_tell: |
2316 | UNI(OP_TELL); |
2317 | |
2318 | case KEY_telldir: |
2319 | UNI(OP_TELLDIR); |
2320 | |
2321 | case KEY_time: |
2322 | FUN0(OP_TIME); |
2323 | |
2324 | case KEY_times: |
2325 | FUN0(OP_TMS); |
2326 | |
2327 | case KEY_truncate: |
2328 | LOP(OP_TRUNCATE); |
2329 | |
2330 | case KEY_uc: |
2331 | UNI(OP_UC); |
2332 | |
2333 | case KEY_ucfirst: |
2334 | UNI(OP_UCFIRST); |
2335 | |
2336 | case KEY_until: |
2337 | yylval.ival = curcop->cop_line; |
2338 | OPERATOR(UNTIL); |
2339 | |
2340 | case KEY_unless: |
2341 | yylval.ival = curcop->cop_line; |
2342 | OPERATOR(UNLESS); |
2343 | |
2344 | case KEY_unlink: |
2345 | LOP(OP_UNLINK); |
2346 | |
2347 | case KEY_undef: |
2348 | UNI(OP_UNDEF); |
2349 | |
2350 | case KEY_unpack: |
2351 | LOP(OP_UNPACK); |
2352 | |
2353 | case KEY_utime: |
2354 | LOP(OP_UTIME); |
2355 | |
2356 | case KEY_umask: |
93a17b20 |
2357 | s = skipspace(s); |
2358 | if (dowarn && *s != '0' && isDIGIT(*s)) |
2359 | warn("umask: argument is missing initial 0"); |
79072805 |
2360 | UNI(OP_UMASK); |
2361 | |
2362 | case KEY_unshift: |
2363 | LOP(OP_UNSHIFT); |
2364 | |
2365 | case KEY_values: |
2366 | UNI(OP_VALUES); |
2367 | |
2368 | case KEY_vec: |
2369 | sawvec = TRUE; |
2370 | LOP(OP_VEC); |
2371 | |
2372 | case KEY_while: |
2373 | yylval.ival = curcop->cop_line; |
2374 | OPERATOR(WHILE); |
2375 | |
2376 | case KEY_warn: |
2377 | LOP(OP_WARN); |
2378 | |
2379 | case KEY_wait: |
2380 | FUN0(OP_WAIT); |
2381 | |
2382 | case KEY_waitpid: |
2383 | LOP(OP_WAITPID); |
2384 | |
2385 | case KEY_wantarray: |
2386 | FUN0(OP_WANTARRAY); |
2387 | |
2388 | case KEY_write: |
2389 | UNI(OP_ENTERWRITE); |
2390 | |
2391 | case KEY_x: |
2392 | if (expect == XOPERATOR) |
2393 | Mop(OP_REPEAT); |
2394 | check_uni(); |
2395 | goto just_a_word; |
2396 | |
2397 | case KEY_y: |
2398 | s = scan_trans(s); |
2399 | TERM(sublex_start()); |
2400 | } |
2401 | } |
2402 | } |
2403 | |
2404 | I32 |
2405 | keyword(d, len) |
2406 | register char *d; |
2407 | I32 len; |
2408 | { |
2409 | switch (*d) { |
2410 | case '_': |
2411 | if (d[1] == '_') { |
2412 | if (strEQ(d,"__LINE__")) return KEY___LINE__; |
2413 | if (strEQ(d,"__FILE__")) return KEY___FILE__; |
2414 | if (strEQ(d,"__END__")) return KEY___END__; |
2415 | } |
2416 | break; |
2417 | case 'a': |
2418 | if (strEQ(d,"alarm")) return KEY_alarm; |
2419 | if (strEQ(d,"accept")) return KEY_accept; |
2420 | if (strEQ(d,"atan2")) return KEY_atan2; |
2421 | break; |
2422 | case 'B': |
2423 | if (strEQ(d,"BEGIN")) return KEY_BEGIN; |
93a17b20 |
2424 | break; |
79072805 |
2425 | case 'b': |
2426 | if (strEQ(d,"bless")) return KEY_bless; |
2427 | if (strEQ(d,"bind")) return KEY_bind; |
2428 | if (strEQ(d,"binmode")) return KEY_binmode; |
2429 | break; |
2430 | case 'c': |
2431 | switch (len) { |
2432 | case 3: |
2433 | if (strEQ(d,"cmp")) return KEY_cmp; |
2434 | if (strEQ(d,"cos")) return KEY_cos; |
2435 | break; |
2436 | case 4: |
2437 | if (strEQ(d,"chop")) return KEY_chop; |
2438 | break; |
2439 | case 5: |
2440 | if (strEQ(d,"close")) return KEY_close; |
2441 | if (strEQ(d,"chdir")) return KEY_chdir; |
2442 | if (strEQ(d,"chmod")) return KEY_chmod; |
2443 | if (strEQ(d,"chown")) return KEY_chown; |
2444 | if (strEQ(d,"crypt")) return KEY_crypt; |
2445 | break; |
2446 | case 6: |
2447 | if (strEQ(d,"chroot")) return KEY_chroot; |
2448 | if (strEQ(d,"caller")) return KEY_caller; |
2449 | break; |
2450 | case 7: |
2451 | if (strEQ(d,"connect")) return KEY_connect; |
2452 | break; |
2453 | case 8: |
2454 | if (strEQ(d,"closedir")) return KEY_closedir; |
2455 | if (strEQ(d,"continue")) return KEY_continue; |
2456 | break; |
2457 | } |
2458 | break; |
2459 | case 'd': |
2460 | switch (len) { |
2461 | case 2: |
2462 | if (strEQ(d,"do")) return KEY_do; |
2463 | break; |
2464 | case 3: |
2465 | if (strEQ(d,"die")) return KEY_die; |
2466 | break; |
2467 | case 4: |
2468 | if (strEQ(d,"dump")) return KEY_dump; |
2469 | break; |
2470 | case 6: |
2471 | if (strEQ(d,"delete")) return KEY_delete; |
2472 | break; |
2473 | case 7: |
2474 | if (strEQ(d,"defined")) return KEY_defined; |
2475 | if (strEQ(d,"dbmopen")) return KEY_dbmopen; |
2476 | break; |
2477 | case 8: |
2478 | if (strEQ(d,"dbmclose")) return KEY_dbmclose; |
2479 | break; |
2480 | } |
2481 | break; |
2482 | case 'E': |
2483 | if (strEQ(d,"EQ")) return KEY_eq; |
2484 | if (strEQ(d,"END")) return KEY_END; |
2485 | break; |
2486 | case 'e': |
2487 | switch (len) { |
2488 | case 2: |
2489 | if (strEQ(d,"eq")) return KEY_eq; |
2490 | break; |
2491 | case 3: |
2492 | if (strEQ(d,"eof")) return KEY_eof; |
2493 | if (strEQ(d,"exp")) return KEY_exp; |
2494 | break; |
2495 | case 4: |
2496 | if (strEQ(d,"else")) return KEY_else; |
2497 | if (strEQ(d,"exit")) return KEY_exit; |
2498 | if (strEQ(d,"eval")) return KEY_eval; |
2499 | if (strEQ(d,"exec")) return KEY_exec; |
2500 | if (strEQ(d,"each")) return KEY_each; |
2501 | break; |
2502 | case 5: |
2503 | if (strEQ(d,"elsif")) return KEY_elsif; |
2504 | break; |
2505 | case 8: |
2506 | if (strEQ(d,"endgrent")) return KEY_endgrent; |
2507 | if (strEQ(d,"endpwent")) return KEY_endpwent; |
2508 | break; |
2509 | case 9: |
2510 | if (strEQ(d,"endnetent")) return KEY_endnetent; |
2511 | break; |
2512 | case 10: |
2513 | if (strEQ(d,"endhostent")) return KEY_endhostent; |
2514 | if (strEQ(d,"endservent")) return KEY_endservent; |
2515 | break; |
2516 | case 11: |
2517 | if (strEQ(d,"endprotoent")) return KEY_endprotoent; |
2518 | break; |
a687059c |
2519 | } |
a687059c |
2520 | break; |
79072805 |
2521 | case 'f': |
2522 | switch (len) { |
2523 | case 3: |
2524 | if (strEQ(d,"for")) return KEY_for; |
2525 | break; |
2526 | case 4: |
2527 | if (strEQ(d,"fork")) return KEY_fork; |
2528 | break; |
2529 | case 5: |
2530 | if (strEQ(d,"fcntl")) return KEY_fcntl; |
2531 | if (strEQ(d,"flock")) return KEY_flock; |
2532 | break; |
2533 | case 6: |
2534 | if (strEQ(d,"format")) return KEY_format; |
2535 | if (strEQ(d,"fileno")) return KEY_fileno; |
2536 | break; |
2537 | case 7: |
2538 | if (strEQ(d,"foreach")) return KEY_foreach; |
2539 | break; |
2540 | case 8: |
2541 | if (strEQ(d,"formline")) return KEY_formline; |
2542 | break; |
378cc40b |
2543 | } |
a687059c |
2544 | break; |
79072805 |
2545 | case 'G': |
2546 | if (len == 2) { |
2547 | if (strEQ(d,"GT")) return KEY_gt; |
2548 | if (strEQ(d,"GE")) return KEY_ge; |
9f68db38 |
2549 | } |
a687059c |
2550 | break; |
79072805 |
2551 | case 'g': |
a687059c |
2552 | if (strnEQ(d,"get",3)) { |
2553 | d += 3; |
2554 | if (*d == 'p') { |
79072805 |
2555 | switch (len) { |
2556 | case 7: |
2557 | if (strEQ(d,"ppid")) return KEY_getppid; |
2558 | if (strEQ(d,"pgrp")) return KEY_getpgrp; |
2559 | break; |
2560 | case 8: |
2561 | if (strEQ(d,"pwent")) return KEY_getpwent; |
2562 | if (strEQ(d,"pwnam")) return KEY_getpwnam; |
2563 | if (strEQ(d,"pwuid")) return KEY_getpwuid; |
2564 | break; |
2565 | case 11: |
2566 | if (strEQ(d,"peername")) return KEY_getpeername; |
2567 | if (strEQ(d,"protoent")) return KEY_getprotoent; |
2568 | if (strEQ(d,"priority")) return KEY_getpriority; |
2569 | break; |
2570 | case 14: |
2571 | if (strEQ(d,"protobyname")) return KEY_getprotobyname; |
2572 | break; |
2573 | case 16: |
2574 | if (strEQ(d,"protobynumber"))return KEY_getprotobynumber; |
2575 | break; |
2576 | } |
a687059c |
2577 | } |
2578 | else if (*d == 'h') { |
79072805 |
2579 | if (strEQ(d,"hostbyname")) return KEY_gethostbyname; |
2580 | if (strEQ(d,"hostbyaddr")) return KEY_gethostbyaddr; |
2581 | if (strEQ(d,"hostent")) return KEY_gethostent; |
a687059c |
2582 | } |
2583 | else if (*d == 'n') { |
79072805 |
2584 | if (strEQ(d,"netbyname")) return KEY_getnetbyname; |
2585 | if (strEQ(d,"netbyaddr")) return KEY_getnetbyaddr; |
2586 | if (strEQ(d,"netent")) return KEY_getnetent; |
a687059c |
2587 | } |
2588 | else if (*d == 's') { |
79072805 |
2589 | if (strEQ(d,"servbyname")) return KEY_getservbyname; |
2590 | if (strEQ(d,"servbyport")) return KEY_getservbyport; |
2591 | if (strEQ(d,"servent")) return KEY_getservent; |
2592 | if (strEQ(d,"sockname")) return KEY_getsockname; |
2593 | if (strEQ(d,"sockopt")) return KEY_getsockopt; |
a687059c |
2594 | } |
2595 | else if (*d == 'g') { |
79072805 |
2596 | if (strEQ(d,"grent")) return KEY_getgrent; |
2597 | if (strEQ(d,"grnam")) return KEY_getgrnam; |
2598 | if (strEQ(d,"grgid")) return KEY_getgrgid; |
a687059c |
2599 | } |
2600 | else if (*d == 'l') { |
79072805 |
2601 | if (strEQ(d,"login")) return KEY_getlogin; |
a687059c |
2602 | } |
79072805 |
2603 | break; |
a687059c |
2604 | } |
79072805 |
2605 | switch (len) { |
2606 | case 2: |
2607 | if (strEQ(d,"gt")) return KEY_gt; |
2608 | if (strEQ(d,"ge")) return KEY_ge; |
2609 | break; |
2610 | case 4: |
2611 | if (strEQ(d,"grep")) return KEY_grep; |
2612 | if (strEQ(d,"goto")) return KEY_goto; |
2613 | if (strEQ(d,"getc")) return KEY_getc; |
93a17b20 |
2614 | if (strEQ(d,"glob")) return KEY_glob; |
79072805 |
2615 | break; |
2616 | case 6: |
2617 | if (strEQ(d,"gmtime")) return KEY_gmtime; |
2618 | break; |
378cc40b |
2619 | } |
a687059c |
2620 | break; |
79072805 |
2621 | case 'h': |
2622 | if (strEQ(d,"hex")) return KEY_hex; |
a687059c |
2623 | break; |
79072805 |
2624 | case 'i': |
2625 | switch (len) { |
2626 | case 2: |
2627 | if (strEQ(d,"if")) return KEY_if; |
2628 | break; |
2629 | case 3: |
2630 | if (strEQ(d,"int")) return KEY_int; |
2631 | break; |
2632 | case 5: |
2633 | if (strEQ(d,"index")) return KEY_index; |
2634 | if (strEQ(d,"ioctl")) return KEY_ioctl; |
2635 | break; |
2636 | } |
a687059c |
2637 | break; |
79072805 |
2638 | case 'j': |
2639 | if (strEQ(d,"join")) return KEY_join; |
a687059c |
2640 | break; |
79072805 |
2641 | case 'k': |
2642 | if (len == 4) { |
2643 | if (strEQ(d,"keys")) return KEY_keys; |
2644 | if (strEQ(d,"kill")) return KEY_kill; |
663a0e37 |
2645 | } |
79072805 |
2646 | break; |
2647 | case 'L': |
2648 | if (len == 2) { |
2649 | if (strEQ(d,"LT")) return KEY_lt; |
2650 | if (strEQ(d,"LE")) return KEY_le; |
378cc40b |
2651 | } |
79072805 |
2652 | break; |
2653 | case 'l': |
2654 | switch (len) { |
2655 | case 2: |
2656 | if (strEQ(d,"lt")) return KEY_lt; |
2657 | if (strEQ(d,"le")) return KEY_le; |
2658 | if (strEQ(d,"lc")) return KEY_lc; |
2659 | break; |
2660 | case 3: |
2661 | if (strEQ(d,"log")) return KEY_log; |
2662 | break; |
2663 | case 4: |
2664 | if (strEQ(d,"last")) return KEY_last; |
2665 | if (strEQ(d,"link")) return KEY_link; |
395c3793 |
2666 | break; |
79072805 |
2667 | case 5: |
2668 | if (strEQ(d,"local")) return KEY_local; |
2669 | if (strEQ(d,"lstat")) return KEY_lstat; |
2670 | break; |
2671 | case 6: |
2672 | if (strEQ(d,"length")) return KEY_length; |
2673 | if (strEQ(d,"listen")) return KEY_listen; |
2674 | break; |
2675 | case 7: |
2676 | if (strEQ(d,"lcfirst")) return KEY_lcfirst; |
2677 | break; |
2678 | case 9: |
2679 | if (strEQ(d,"localtime")) return KEY_localtime; |
395c3793 |
2680 | break; |
2681 | } |
a687059c |
2682 | break; |
79072805 |
2683 | case 'm': |
2684 | switch (len) { |
2685 | case 1: return KEY_m; |
93a17b20 |
2686 | case 2: |
2687 | if (strEQ(d,"my")) return KEY_my; |
2688 | break; |
79072805 |
2689 | case 5: |
2690 | if (strEQ(d,"mkdir")) return KEY_mkdir; |
2691 | break; |
2692 | case 6: |
2693 | if (strEQ(d,"msgctl")) return KEY_msgctl; |
2694 | if (strEQ(d,"msgget")) return KEY_msgget; |
2695 | if (strEQ(d,"msgrcv")) return KEY_msgrcv; |
2696 | if (strEQ(d,"msgsnd")) return KEY_msgsnd; |
2697 | break; |
2698 | } |
a687059c |
2699 | break; |
79072805 |
2700 | case 'N': |
2701 | if (strEQ(d,"NE")) return KEY_ne; |
a687059c |
2702 | break; |
79072805 |
2703 | case 'n': |
2704 | if (strEQ(d,"next")) return KEY_next; |
2705 | if (strEQ(d,"ne")) return KEY_ne; |
a687059c |
2706 | break; |
79072805 |
2707 | case 'o': |
2708 | switch (len) { |
2709 | case 3: |
2710 | if (strEQ(d,"ord")) return KEY_ord; |
2711 | if (strEQ(d,"oct")) return KEY_oct; |
2712 | break; |
2713 | case 4: |
2714 | if (strEQ(d,"open")) return KEY_open; |
2715 | break; |
2716 | case 7: |
2717 | if (strEQ(d,"opendir")) return KEY_opendir; |
2718 | break; |
fe14fcc3 |
2719 | } |
a687059c |
2720 | break; |
79072805 |
2721 | case 'p': |
2722 | switch (len) { |
2723 | case 3: |
2724 | if (strEQ(d,"pop")) return KEY_pop; |
2725 | break; |
2726 | case 4: |
2727 | if (strEQ(d,"push")) return KEY_push; |
2728 | if (strEQ(d,"pack")) return KEY_pack; |
2729 | if (strEQ(d,"pipe")) return KEY_pipe; |
2730 | break; |
2731 | case 5: |
2732 | if (strEQ(d,"print")) return KEY_print; |
2733 | break; |
2734 | case 6: |
2735 | if (strEQ(d,"printf")) return KEY_printf; |
2736 | break; |
2737 | case 7: |
2738 | if (strEQ(d,"package")) return KEY_package; |
2739 | break; |
663a0e37 |
2740 | } |
79072805 |
2741 | break; |
2742 | case 'q': |
2743 | if (len <= 2) { |
2744 | if (strEQ(d,"q")) return KEY_q; |
2745 | if (strEQ(d,"qq")) return KEY_qq; |
2746 | if (strEQ(d,"qx")) return KEY_qx; |
663a0e37 |
2747 | } |
79072805 |
2748 | break; |
2749 | case 'r': |
2750 | switch (len) { |
2751 | case 3: |
2752 | if (strEQ(d,"ref")) return KEY_ref; |
2753 | break; |
2754 | case 4: |
2755 | if (strEQ(d,"read")) return KEY_read; |
2756 | if (strEQ(d,"rand")) return KEY_rand; |
2757 | if (strEQ(d,"recv")) return KEY_recv; |
2758 | if (strEQ(d,"redo")) return KEY_redo; |
2759 | break; |
2760 | case 5: |
2761 | if (strEQ(d,"rmdir")) return KEY_rmdir; |
2762 | if (strEQ(d,"reset")) return KEY_reset; |
2763 | break; |
2764 | case 6: |
2765 | if (strEQ(d,"return")) return KEY_return; |
2766 | if (strEQ(d,"rename")) return KEY_rename; |
2767 | if (strEQ(d,"rindex")) return KEY_rindex; |
2768 | break; |
2769 | case 7: |
2770 | if (strEQ(d,"require")) return KEY_require; |
2771 | if (strEQ(d,"reverse")) return KEY_reverse; |
2772 | if (strEQ(d,"readdir")) return KEY_readdir; |
2773 | break; |
2774 | case 8: |
2775 | if (strEQ(d,"readlink")) return KEY_readlink; |
93a17b20 |
2776 | if (strEQ(d,"readline")) return KEY_readline; |
2777 | if (strEQ(d,"readpipe")) return KEY_readpipe; |
79072805 |
2778 | break; |
2779 | case 9: |
2780 | if (strEQ(d,"rewinddir")) return KEY_rewinddir; |
2781 | break; |
a687059c |
2782 | } |
79072805 |
2783 | break; |
2784 | case 's': |
a687059c |
2785 | switch (d[1]) { |
79072805 |
2786 | case 0: return KEY_s; |
a687059c |
2787 | case 'c': |
79072805 |
2788 | if (strEQ(d,"scalar")) return KEY_scalar; |
a687059c |
2789 | break; |
2790 | case 'e': |
79072805 |
2791 | switch (len) { |
2792 | case 4: |
2793 | if (strEQ(d,"seek")) return KEY_seek; |
2794 | if (strEQ(d,"send")) return KEY_send; |
2795 | break; |
2796 | case 5: |
2797 | if (strEQ(d,"semop")) return KEY_semop; |
2798 | break; |
2799 | case 6: |
2800 | if (strEQ(d,"select")) return KEY_select; |
2801 | if (strEQ(d,"semctl")) return KEY_semctl; |
2802 | if (strEQ(d,"semget")) return KEY_semget; |
2803 | break; |
2804 | case 7: |
2805 | if (strEQ(d,"setpgrp")) return KEY_setpgrp; |
2806 | if (strEQ(d,"seekdir")) return KEY_seekdir; |
2807 | break; |
2808 | case 8: |
2809 | if (strEQ(d,"setpwent")) return KEY_setpwent; |
2810 | if (strEQ(d,"setgrent")) return KEY_setgrent; |
2811 | break; |
2812 | case 9: |
2813 | if (strEQ(d,"setnetent")) return KEY_setnetent; |
2814 | break; |
2815 | case 10: |
2816 | if (strEQ(d,"setsockopt")) return KEY_setsockopt; |
2817 | if (strEQ(d,"sethostent")) return KEY_sethostent; |
2818 | if (strEQ(d,"setservent")) return KEY_setservent; |
2819 | break; |
2820 | case 11: |
2821 | if (strEQ(d,"setpriority")) return KEY_setpriority; |
2822 | if (strEQ(d,"setprotoent")) return KEY_setprotoent; |
2823 | break; |
2824 | } |
a687059c |
2825 | break; |
2826 | case 'h': |
79072805 |
2827 | switch (len) { |
2828 | case 5: |
2829 | if (strEQ(d,"shift")) return KEY_shift; |
2830 | break; |
2831 | case 6: |
2832 | if (strEQ(d,"shmctl")) return KEY_shmctl; |
2833 | if (strEQ(d,"shmget")) return KEY_shmget; |
2834 | break; |
2835 | case 7: |
2836 | if (strEQ(d,"shmread")) return KEY_shmread; |
2837 | break; |
2838 | case 8: |
2839 | if (strEQ(d,"shmwrite")) return KEY_shmwrite; |
2840 | if (strEQ(d,"shutdown")) return KEY_shutdown; |
2841 | break; |
2842 | } |
a687059c |
2843 | break; |
2844 | case 'i': |
79072805 |
2845 | if (strEQ(d,"sin")) return KEY_sin; |
a687059c |
2846 | break; |
2847 | case 'l': |
79072805 |
2848 | if (strEQ(d,"sleep")) return KEY_sleep; |
a687059c |
2849 | break; |
2850 | case 'o': |
79072805 |
2851 | if (strEQ(d,"sort")) return KEY_sort; |
2852 | if (strEQ(d,"socket")) return KEY_socket; |
2853 | if (strEQ(d,"socketpair")) return KEY_socketpair; |
a687059c |
2854 | break; |
2855 | case 'p': |
79072805 |
2856 | if (strEQ(d,"split")) return KEY_split; |
2857 | if (strEQ(d,"sprintf")) return KEY_sprintf; |
2858 | if (strEQ(d,"splice")) return KEY_splice; |
a687059c |
2859 | break; |
2860 | case 'q': |
79072805 |
2861 | if (strEQ(d,"sqrt")) return KEY_sqrt; |
a687059c |
2862 | break; |
2863 | case 'r': |
79072805 |
2864 | if (strEQ(d,"srand")) return KEY_srand; |
a687059c |
2865 | break; |
2866 | case 't': |
79072805 |
2867 | if (strEQ(d,"stat")) return KEY_stat; |
2868 | if (strEQ(d,"study")) return KEY_study; |
a687059c |
2869 | break; |
2870 | case 'u': |
79072805 |
2871 | if (strEQ(d,"substr")) return KEY_substr; |
2872 | if (strEQ(d,"sub")) return KEY_sub; |
a687059c |
2873 | break; |
2874 | case 'y': |
79072805 |
2875 | switch (len) { |
2876 | case 6: |
2877 | if (strEQ(d,"system")) return KEY_system; |
2878 | break; |
2879 | case 7: |
2880 | if (strEQ(d,"sysread")) return KEY_sysread; |
2881 | if (strEQ(d,"symlink")) return KEY_symlink; |
2882 | if (strEQ(d,"syscall")) return KEY_syscall; |
2883 | break; |
2884 | case 8: |
2885 | if (strEQ(d,"syswrite")) return KEY_syswrite; |
2886 | break; |
a687059c |
2887 | } |
a687059c |
2888 | break; |
2889 | } |
2890 | break; |
79072805 |
2891 | case 't': |
2892 | switch (len) { |
2893 | case 2: |
2894 | if (strEQ(d,"tr")) return KEY_tr; |
2895 | break; |
2896 | case 4: |
2897 | if (strEQ(d,"tell")) return KEY_tell; |
2898 | if (strEQ(d,"time")) return KEY_time; |
2899 | break; |
2900 | case 5: |
2901 | if (strEQ(d,"times")) return KEY_times; |
2902 | break; |
2903 | case 7: |
2904 | if (strEQ(d,"telldir")) return KEY_telldir; |
2905 | break; |
2906 | case 8: |
2907 | if (strEQ(d,"truncate")) return KEY_truncate; |
2908 | break; |
378cc40b |
2909 | } |
a687059c |
2910 | break; |
79072805 |
2911 | case 'u': |
2912 | switch (len) { |
2913 | case 2: |
2914 | if (strEQ(d,"uc")) return KEY_uc; |
2915 | break; |
2916 | case 5: |
2917 | if (strEQ(d,"undef")) return KEY_undef; |
2918 | if (strEQ(d,"until")) return KEY_until; |
2919 | if (strEQ(d,"utime")) return KEY_utime; |
2920 | if (strEQ(d,"umask")) return KEY_umask; |
2921 | break; |
2922 | case 6: |
2923 | if (strEQ(d,"unless")) return KEY_unless; |
2924 | if (strEQ(d,"unpack")) return KEY_unpack; |
2925 | if (strEQ(d,"unlink")) return KEY_unlink; |
2926 | break; |
2927 | case 7: |
2928 | if (strEQ(d,"unshift")) return KEY_unshift; |
2929 | if (strEQ(d,"ucfirst")) return KEY_ucfirst; |
2930 | break; |
a687059c |
2931 | } |
2932 | break; |
79072805 |
2933 | case 'v': |
2934 | if (strEQ(d,"values")) return KEY_values; |
2935 | if (strEQ(d,"vec")) return KEY_vec; |
a687059c |
2936 | break; |
79072805 |
2937 | case 'w': |
2938 | switch (len) { |
2939 | case 4: |
2940 | if (strEQ(d,"warn")) return KEY_warn; |
2941 | if (strEQ(d,"wait")) return KEY_wait; |
2942 | break; |
2943 | case 5: |
2944 | if (strEQ(d,"while")) return KEY_while; |
2945 | if (strEQ(d,"write")) return KEY_write; |
2946 | break; |
2947 | case 7: |
2948 | if (strEQ(d,"waitpid")) return KEY_waitpid; |
2949 | break; |
2950 | case 9: |
2951 | if (strEQ(d,"wantarray")) return KEY_wantarray; |
2952 | break; |
2f3197b3 |
2953 | } |
a687059c |
2954 | break; |
79072805 |
2955 | case 'x': |
2956 | if (len == 1) return KEY_x; |
a687059c |
2957 | break; |
79072805 |
2958 | case 'y': |
2959 | if (len == 1) return KEY_y; |
2960 | break; |
2961 | case 'z': |
a687059c |
2962 | break; |
2963 | } |
79072805 |
2964 | return 0; |
a687059c |
2965 | } |
2966 | |
fe14fcc3 |
2967 | void |
2f3197b3 |
2968 | checkcomma(s,name,what) |
a687059c |
2969 | register char *s; |
2f3197b3 |
2970 | char *name; |
a687059c |
2971 | char *what; |
2972 | { |
2f3197b3 |
2973 | char *w; |
2974 | |
2975 | if (dowarn && *s == ' ' && s[1] == '(') { |
93a17b20 |
2976 | w = strchr(s,')'); |
2f3197b3 |
2977 | if (w) |
2978 | for (w++; *w && isSPACE(*w); w++) ; |
93a17b20 |
2979 | if (!w || !*w || !strchr(";|}", *w)) /* an advisory hack only... */ |
2f3197b3 |
2980 | warn("%s (...) interpreted as function",name); |
2981 | } |
2982 | while (s < bufend && isSPACE(*s)) |
2983 | s++; |
a687059c |
2984 | if (*s == '(') |
2985 | s++; |
de3bb511 |
2986 | while (s < bufend && isSPACE(*s)) |
a687059c |
2987 | s++; |
79072805 |
2988 | if (isIDFIRST(*s)) { |
2f3197b3 |
2989 | w = s++; |
de3bb511 |
2990 | while (isALNUM(*s)) |
a687059c |
2991 | s++; |
de3bb511 |
2992 | while (s < bufend && isSPACE(*s)) |
a687059c |
2993 | s++; |
e929a76b |
2994 | if (*s == ',') { |
2995 | *s = '\0'; |
2f3197b3 |
2996 | w = instr( |
e929a76b |
2997 | "tell eof times getlogin wait length shift umask getppid \ |
2998 | cos exp int log rand sin sqrt ord wantarray", |
2f3197b3 |
2999 | w); |
e929a76b |
3000 | *s = ','; |
2f3197b3 |
3001 | if (w) |
e929a76b |
3002 | return; |
a687059c |
3003 | fatal("No comma allowed after %s", what); |
e929a76b |
3004 | } |
378cc40b |
3005 | } |
3006 | } |
3007 | |
3008 | char * |
79072805 |
3009 | scan_ident(s,send,dest,ck_uni) |
378cc40b |
3010 | register char *s; |
a687059c |
3011 | register char *send; |
378cc40b |
3012 | char *dest; |
79072805 |
3013 | I32 ck_uni; |
378cc40b |
3014 | { |
3015 | register char *d; |
79072805 |
3016 | char *bracket = 0; |
378cc40b |
3017 | |
79072805 |
3018 | if (lex_brackets == 0) |
3019 | lex_fakebrack = 0; |
378cc40b |
3020 | s++; |
3021 | d = dest; |
de3bb511 |
3022 | if (isDIGIT(*s)) { |
3023 | while (isDIGIT(*s)) |
378cc40b |
3024 | *d++ = *s++; |
3025 | } |
3026 | else { |
de3bb511 |
3027 | while (isALNUM(*s) || *s == '\'') |
378cc40b |
3028 | *d++ = *s++; |
3029 | } |
663a0e37 |
3030 | while (d > dest+1 && d[-1] == '\'') |
a687059c |
3031 | d--,s--; |
378cc40b |
3032 | *d = '\0'; |
3033 | d = dest; |
79072805 |
3034 | if (*d) { |
3035 | if (lex_state != LEX_NORMAL) |
3036 | lex_state = LEX_INTERPENDMAYBE; |
3037 | return s; |
378cc40b |
3038 | } |
79072805 |
3039 | if (isSPACE(*s) || |
3040 | (*s == '$' && (isALPHA(s[1]) || s[1] == '$' || s[1] == '_'))) |
3041 | return s; |
3042 | if (*s == '{') { |
3043 | bracket = s; |
3044 | s++; |
3045 | } |
3046 | else if (ck_uni) |
3047 | check_uni(); |
93a17b20 |
3048 | if (s < send) |
79072805 |
3049 | *d = *s++; |
3050 | d[1] = '\0'; |
93a17b20 |
3051 | if (*d == '^' && (isUPPER(*s) || strchr("[\\]^_?", *s))) { |
de3bb511 |
3052 | if (*s == 'D') |
3053 | debug |= 32768; |
fe14fcc3 |
3054 | *d = *s++ ^ 64; |
de3bb511 |
3055 | } |
79072805 |
3056 | if (bracket) { |
3057 | if (isALPHA(*d) || *d == '_') { |
3058 | d++; |
3059 | while (isALNUM(*s)) |
3060 | *d++ = *s++; |
3061 | *d = '\0'; |
3062 | if (*s == '[' || *s == '{') { |
3063 | if (lex_brackets) |
3064 | fatal("Can't use delimiter brackets within expression"); |
3065 | lex_fakebrack = TRUE; |
3066 | bracket++; |
3067 | lex_brackets++; |
3068 | return s; |
3069 | } |
3070 | } |
3071 | if (*s == '}') { |
3072 | s++; |
3073 | if (lex_state == LEX_INTERPNORMAL && !lex_brackets) |
3074 | lex_state = LEX_INTERPEND; |
3075 | } |
3076 | else { |
3077 | s = bracket; /* let the parser handle it */ |
93a17b20 |
3078 | *dest = '\0'; |
79072805 |
3079 | } |
3080 | } |
3081 | else if (lex_state == LEX_INTERPNORMAL && !lex_brackets && !intuit_more(s)) |
3082 | lex_state = LEX_INTERPEND; |
378cc40b |
3083 | return s; |
3084 | } |
3085 | |
de3bb511 |
3086 | void |
79072805 |
3087 | scan_prefix(pm,string,len) |
3088 | PMOP *pm; |
378cc40b |
3089 | char *string; |
79072805 |
3090 | I32 len; |
378cc40b |
3091 | { |
79072805 |
3092 | register SV *tmpstr; |
378cc40b |
3093 | register char *t; |
3094 | register char *d; |
a687059c |
3095 | register char *e; |
d48672a2 |
3096 | char *origstring = string; |
378cc40b |
3097 | |
d48672a2 |
3098 | if (ninstr(string, string+len, vert, vert+1)) |
de3bb511 |
3099 | return; |
d48672a2 |
3100 | if (*string == '^') |
3101 | string++, len--; |
79072805 |
3102 | tmpstr = NEWSV(86,len); |
3103 | sv_upgrade(tmpstr, SVt_PVBM); |
3104 | sv_setpvn(tmpstr,string,len); |
3105 | t = SvPVn(tmpstr); |
a687059c |
3106 | e = t + len; |
79072805 |
3107 | BmUSEFUL(tmpstr) = 100; |
a687059c |
3108 | for (d=t; d < e; ) { |
378cc40b |
3109 | switch (*d) { |
a687059c |
3110 | case '{': |
de3bb511 |
3111 | if (isDIGIT(d[1])) |
a687059c |
3112 | e = d; |
3113 | else |
3114 | goto defchar; |
3115 | break; |
3116 | case '.': case '[': case '$': case '(': case ')': case '|': case '+': |
de3bb511 |
3117 | case '^': |
a687059c |
3118 | e = d; |
378cc40b |
3119 | break; |
3120 | case '\\': |
93a17b20 |
3121 | if (d[1] && strchr("wWbB0123456789sSdDlLuUExc",d[1])) { |
a687059c |
3122 | e = d; |
378cc40b |
3123 | break; |
3124 | } |
2f3197b3 |
3125 | Move(d+1,d,e-d,char); |
a687059c |
3126 | e--; |
378cc40b |
3127 | switch(*d) { |
3128 | case 'n': |
3129 | *d = '\n'; |
3130 | break; |
3131 | case 't': |
3132 | *d = '\t'; |
3133 | break; |
3134 | case 'f': |
3135 | *d = '\f'; |
3136 | break; |
3137 | case 'r': |
3138 | *d = '\r'; |
3139 | break; |
fe14fcc3 |
3140 | case 'e': |
3141 | *d = '\033'; |
3142 | break; |
3143 | case 'a': |
3144 | *d = '\007'; |
3145 | break; |
378cc40b |
3146 | } |
3147 | /* FALL THROUGH */ |
3148 | default: |
a687059c |
3149 | defchar: |
3150 | if (d[1] == '*' || (d[1] == '{' && d[2] == '0') || d[1] == '?') { |
3151 | e = d; |
378cc40b |
3152 | break; |
3153 | } |
3154 | d++; |
3155 | } |
3156 | } |
a687059c |
3157 | if (d == t) { |
79072805 |
3158 | sv_free(tmpstr); |
de3bb511 |
3159 | return; |
378cc40b |
3160 | } |
a687059c |
3161 | *d = '\0'; |
79072805 |
3162 | SvCUR_set(tmpstr, d - t); |
d48672a2 |
3163 | if (d == t+len) |
79072805 |
3164 | pm->op_pmflags |= PMf_ALL; |
d48672a2 |
3165 | if (*origstring != '^') |
79072805 |
3166 | pm->op_pmflags |= PMf_SCANFIRST; |
3167 | pm->op_pmshort = tmpstr; |
3168 | pm->op_pmslen = d - t; |
378cc40b |
3169 | } |
3170 | |
3171 | char * |
79072805 |
3172 | scan_pat(start) |
3173 | char *start; |
378cc40b |
3174 | { |
79072805 |
3175 | PMOP *pm; |
3176 | char *s; |
378cc40b |
3177 | |
79072805 |
3178 | multi_start = curcop->cop_line; |
378cc40b |
3179 | |
79072805 |
3180 | s = scan_str(start); |
3181 | if (!s) { |
3182 | if (lex_stuff) |
3183 | sv_free(lex_stuff); |
3184 | lex_stuff = Nullsv; |
3185 | fatal("Search pattern not terminated"); |
378cc40b |
3186 | } |
79072805 |
3187 | pm = (PMOP*)newPMOP(OP_MATCH, 0); |
3188 | if (*start == '?') |
3189 | pm->op_pmflags |= PMf_ONCE; |
3190 | |
d48672a2 |
3191 | while (*s == 'i' || *s == 'o' || *s == 'g') { |
a687059c |
3192 | if (*s == 'i') { |
3193 | s++; |
3194 | sawi = TRUE; |
79072805 |
3195 | pm->op_pmflags |= PMf_FOLD; |
a687059c |
3196 | } |
3197 | if (*s == 'o') { |
3198 | s++; |
79072805 |
3199 | pm->op_pmflags |= PMf_KEEP; |
a687059c |
3200 | } |
d48672a2 |
3201 | if (*s == 'g') { |
3202 | s++; |
79072805 |
3203 | pm->op_pmflags |= PMf_GLOBAL; |
378cc40b |
3204 | } |
3205 | } |
79072805 |
3206 | |
3207 | lex_op = (OP*)pm; |
3208 | yylval.ival = OP_MATCH; |
378cc40b |
3209 | return s; |
3210 | } |
3211 | |
3212 | char * |
79072805 |
3213 | scan_subst(start) |
2f3197b3 |
3214 | char *start; |
79072805 |
3215 | { |
3216 | register char *s = start; |
3217 | register PMOP *pm; |
3218 | I32 es = 0; |
3219 | |
3220 | multi_start = curcop->cop_line; |
3221 | yylval.ival = OP_NULL; |
3222 | |
3223 | s = scan_str(s); |
3224 | |
3225 | if (!s) { |
3226 | if (lex_stuff) |
3227 | sv_free(lex_stuff); |
3228 | lex_stuff = Nullsv; |
3229 | fatal("Substitution pattern not terminated"); |
a687059c |
3230 | } |
79072805 |
3231 | |
3232 | if (s[-1] == *start) |
3233 | s--; |
3234 | |
3235 | s = scan_str(s); |
3236 | if (!s) { |
3237 | if (lex_stuff) |
3238 | sv_free(lex_stuff); |
3239 | lex_stuff = Nullsv; |
3240 | if (lex_repl) |
3241 | sv_free(lex_repl); |
3242 | lex_repl = Nullsv; |
3243 | fatal("Substitution replacement not terminated"); |
a687059c |
3244 | } |
2f3197b3 |
3245 | |
79072805 |
3246 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
3247 | while (*s == 'g' || *s == 'i' || *s == 'e' || *s == 'o') { |
a687059c |
3248 | if (*s == 'e') { |
3249 | s++; |
2f3197b3 |
3250 | es++; |
a687059c |
3251 | } |
378cc40b |
3252 | if (*s == 'g') { |
3253 | s++; |
79072805 |
3254 | pm->op_pmflags |= PMf_GLOBAL; |
378cc40b |
3255 | } |
3256 | if (*s == 'i') { |
3257 | s++; |
a687059c |
3258 | sawi = TRUE; |
79072805 |
3259 | pm->op_pmflags |= PMf_FOLD; |
a687059c |
3260 | } |
3261 | if (*s == 'o') { |
3262 | s++; |
79072805 |
3263 | pm->op_pmflags |= PMf_KEEP; |
378cc40b |
3264 | } |
3265 | } |
79072805 |
3266 | |
3267 | if (es) { |
3268 | SV *repl; |
3269 | pm->op_pmflags |= PMf_EVAL; |
3270 | repl = NEWSV(93,0); |
3271 | while (es-- > 0) { |
3272 | es--; |
3273 | sv_catpvn(repl, "eval ", 5); |
3274 | } |
3275 | sv_catpvn(repl, "{ ", 2); |
3276 | sv_catsv(repl, lex_repl); |
3277 | sv_catpvn(repl, " };", 2); |
3278 | SvCOMPILED_on(repl); |
3279 | sv_free(lex_repl); |
3280 | lex_repl = repl; |
378cc40b |
3281 | } |
79072805 |
3282 | |
3283 | lex_op = (OP*)pm; |
3284 | yylval.ival = OP_SUBST; |
378cc40b |
3285 | return s; |
3286 | } |
3287 | |
1462b684 |
3288 | void |
79072805 |
3289 | hoistmust(pm) |
3290 | register PMOP *pm; |
378cc40b |
3291 | { |
79072805 |
3292 | if (!pm->op_pmshort && pm->op_pmregexp->regstart && |
3293 | (!pm->op_pmregexp->regmust || pm->op_pmregexp->reganch & ROPT_ANCH) |
d48672a2 |
3294 | ) { |
79072805 |
3295 | if (!(pm->op_pmregexp->reganch & ROPT_ANCH)) |
3296 | pm->op_pmflags |= PMf_SCANFIRST; |
3297 | else if (pm->op_pmflags & PMf_FOLD) |
1462b684 |
3298 | return; |
79072805 |
3299 | pm->op_pmshort = sv_ref(pm->op_pmregexp->regstart); |
d48672a2 |
3300 | } |
79072805 |
3301 | else if (pm->op_pmregexp->regmust) {/* is there a better short-circuit? */ |
3302 | if (pm->op_pmshort && |
3303 | sv_eq(pm->op_pmshort,pm->op_pmregexp->regmust)) |
a687059c |
3304 | { |
79072805 |
3305 | if (pm->op_pmflags & PMf_SCANFIRST) { |
3306 | sv_free(pm->op_pmshort); |
3307 | pm->op_pmshort = Nullsv; |
378cc40b |
3308 | } |
3309 | else { |
79072805 |
3310 | sv_free(pm->op_pmregexp->regmust); |
3311 | pm->op_pmregexp->regmust = Nullsv; |
378cc40b |
3312 | return; |
3313 | } |
3314 | } |
79072805 |
3315 | if (!pm->op_pmshort || /* promote the better string */ |
3316 | ((pm->op_pmflags & PMf_SCANFIRST) && |
3317 | (SvCUR(pm->op_pmshort) < SvCUR(pm->op_pmregexp->regmust)) )){ |
3318 | sv_free(pm->op_pmshort); /* ok if null */ |
3319 | pm->op_pmshort = pm->op_pmregexp->regmust; |
3320 | pm->op_pmregexp->regmust = Nullsv; |
3321 | pm->op_pmflags |= PMf_SCANFIRST; |
378cc40b |
3322 | } |
3323 | } |
3324 | } |
3325 | |
3326 | char * |
79072805 |
3327 | scan_trans(start) |
2f3197b3 |
3328 | char *start; |
378cc40b |
3329 | { |
2f3197b3 |
3330 | register char *s = start; |
79072805 |
3331 | OP *op; |
3332 | short *tbl; |
3333 | I32 squash; |
3334 | I32 delete; |
3335 | I32 complement; |
3336 | |
3337 | yylval.ival = OP_NULL; |
3338 | |
3339 | s = scan_str(s); |
3340 | if (!s) { |
3341 | if (lex_stuff) |
3342 | sv_free(lex_stuff); |
3343 | lex_stuff = Nullsv; |
3344 | fatal("Translation pattern not terminated"); |
a687059c |
3345 | } |
2f3197b3 |
3346 | if (s[-1] == *start) |
3347 | s--; |
3348 | |
93a17b20 |
3349 | s = scan_str(s); |
79072805 |
3350 | if (!s) { |
3351 | if (lex_stuff) |
3352 | sv_free(lex_stuff); |
3353 | lex_stuff = Nullsv; |
3354 | if (lex_repl) |
3355 | sv_free(lex_repl); |
3356 | lex_repl = Nullsv; |
3357 | fatal("Translation replacement not terminated"); |
a687059c |
3358 | } |
79072805 |
3359 | |
3360 | New(803,tbl,256,short); |
3361 | op = newPVOP(OP_TRANS, 0, (char*)tbl); |
2f3197b3 |
3362 | |
395c3793 |
3363 | complement = delete = squash = 0; |
3364 | while (*s == 'c' || *s == 'd' || *s == 's') { |
3365 | if (*s == 'c') |
79072805 |
3366 | complement = OPpTRANS_COMPLEMENT; |
395c3793 |
3367 | else if (*s == 'd') |
79072805 |
3368 | delete = OPpTRANS_DELETE; |
395c3793 |
3369 | else |
79072805 |
3370 | squash = OPpTRANS_SQUASH; |
395c3793 |
3371 | s++; |
3372 | } |
79072805 |
3373 | op->op_private = delete|squash|complement; |
3374 | |
3375 | lex_op = op; |
3376 | yylval.ival = OP_TRANS; |
3377 | return s; |
3378 | } |
3379 | |
3380 | char * |
3381 | scan_heredoc(s) |
3382 | register char *s; |
3383 | { |
3384 | SV *herewas; |
3385 | I32 op_type = OP_SCALAR; |
3386 | I32 len; |
3387 | SV *tmpstr; |
3388 | char term; |
3389 | register char *d; |
3390 | |
3391 | s += 2; |
3392 | d = tokenbuf; |
3393 | if (!rsfp) |
3394 | *d++ = '\n'; |
93a17b20 |
3395 | if (*s && strchr("`'\"",*s)) { |
79072805 |
3396 | term = *s++; |
3397 | s = cpytill(d,s,bufend,term,&len); |
3398 | if (s < bufend) |
3399 | s++; |
3400 | d += len; |
3401 | } |
3402 | else { |
3403 | if (*s == '\\') |
3404 | s++, term = '\''; |
3405 | else |
3406 | term = '"'; |
3407 | while (isALNUM(*s)) |
3408 | *d++ = *s++; |
3409 | } /* assuming tokenbuf won't clobber */ |
3410 | *d++ = '\n'; |
3411 | *d = '\0'; |
3412 | len = d - tokenbuf; |
3413 | d = "\n"; |
3414 | if (rsfp || !(d=ninstr(s,bufend,d,d+1))) |
3415 | herewas = newSVpv(s,bufend-s); |
3416 | else |
3417 | s--, herewas = newSVpv(s,d-s); |
3418 | s += SvCUR(herewas); |
3419 | if (term == '\'') |
3420 | op_type = OP_CONST; |
3421 | if (term == '`') |
3422 | op_type = OP_BACKTICK; |
3423 | |
3424 | CLINE; |
3425 | multi_start = curcop->cop_line; |
3426 | multi_open = multi_close = '<'; |
3427 | tmpstr = NEWSV(87,80); |
3428 | term = *tokenbuf; |
3429 | if (!rsfp) { |
3430 | d = s; |
3431 | while (s < bufend && |
3432 | (*s != term || bcmp(s,tokenbuf,len) != 0) ) { |
3433 | if (*s++ == '\n') |
3434 | curcop->cop_line++; |
3435 | } |
3436 | if (s >= bufend) { |
3437 | curcop->cop_line = multi_start; |
3438 | fatal("EOF in string"); |
3439 | } |
3440 | sv_setpvn(tmpstr,d+1,s-d); |
3441 | s += len - 1; |
3442 | sv_catpvn(herewas,s,bufend-s); |
3443 | sv_setsv(linestr,herewas); |
3444 | oldoldbufptr = oldbufptr = bufptr = s = SvPVn(linestr); |
3445 | bufend = SvPV(linestr) + SvCUR(linestr); |
3446 | } |
3447 | else |
3448 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ |
3449 | while (s >= bufend) { /* multiple line string? */ |
3450 | if (!rsfp || |
3451 | !(oldoldbufptr = oldbufptr = s = sv_gets(linestr, rsfp, 0))) { |
3452 | curcop->cop_line = multi_start; |
3453 | fatal("EOF in string"); |
3454 | } |
3455 | curcop->cop_line++; |
3456 | if (perldb) { |
3457 | SV *sv = NEWSV(88,0); |
3458 | |
93a17b20 |
3459 | sv_upgrade(sv, SVt_PVMG); |
79072805 |
3460 | sv_setsv(sv,linestr); |
3461 | av_store(GvAV(curcop->cop_filegv), |
3462 | (I32)curcop->cop_line,sv); |
3463 | } |
3464 | bufend = SvPV(linestr) + SvCUR(linestr); |
3465 | if (*s == term && bcmp(s,tokenbuf,len) == 0) { |
3466 | s = bufend - 1; |
3467 | *s = ' '; |
3468 | sv_catsv(linestr,herewas); |
3469 | bufend = SvPV(linestr) + SvCUR(linestr); |
3470 | } |
3471 | else { |
3472 | s = bufend; |
3473 | sv_catsv(tmpstr,linestr); |
395c3793 |
3474 | } |
3475 | } |
79072805 |
3476 | multi_end = curcop->cop_line; |
3477 | s++; |
3478 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
3479 | SvLEN_set(tmpstr, SvCUR(tmpstr) + 1); |
3480 | Renew(SvPV(tmpstr), SvLEN(tmpstr), char); |
3481 | } |
3482 | sv_free(herewas); |
3483 | lex_stuff = tmpstr; |
3484 | yylval.ival = op_type; |
3485 | return s; |
3486 | } |
3487 | |
3488 | char * |
3489 | scan_inputsymbol(start) |
3490 | char *start; |
3491 | { |
3492 | register char *s = start; |
3493 | register char *d; |
3494 | I32 len; |
3495 | |
3496 | d = tokenbuf; |
3497 | s = cpytill(d, s+1, bufend, '>', &len); |
3498 | if (s < bufend) |
3499 | s++; |
3500 | else |
3501 | fatal("Unterminated <> operator"); |
3502 | |
3503 | if (*d == '$') d++; |
3504 | while (*d && (isALNUM(*d) || *d == '\'')) |
3505 | d++; |
3506 | if (d - tokenbuf != len) { |
3507 | yylval.ival = OP_GLOB; |
3508 | set_csh(); |
3509 | s = scan_str(start); |
3510 | if (!s) |
3511 | fatal("Glob not terminated"); |
3512 | return s; |
3513 | } |
395c3793 |
3514 | else { |
79072805 |
3515 | d = tokenbuf; |
3516 | if (!len) |
3517 | (void)strcpy(d,"ARGV"); |
3518 | if (*d == '$') { |
3519 | GV *gv = gv_fetchpv(d+1,TRUE); |
3520 | lex_op = (OP*)newUNOP(OP_READLINE, 0, |
3521 | newUNOP(OP_RV2GV, 0, |
3522 | newUNOP(OP_RV2SV, 0, |
3523 | newGVOP(OP_GV, 0, gv)))); |
3524 | yylval.ival = OP_NULL; |
3525 | } |
3526 | else { |
3527 | IO *io; |
3528 | |
3529 | GV *gv = gv_fetchpv(d,TRUE); |
3530 | io = GvIOn(gv); |
3531 | if (strEQ(d,"ARGV")) { |
3532 | GvAVn(gv); |
3533 | io->flags |= IOf_ARGV|IOf_START; |
395c3793 |
3534 | } |
79072805 |
3535 | lex_op = (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); |
3536 | yylval.ival = OP_NULL; |
3537 | } |
3538 | } |
3539 | return s; |
3540 | } |
3541 | |
3542 | char * |
3543 | scan_str(start) |
3544 | char *start; |
3545 | { |
93a17b20 |
3546 | SV *sv; |
79072805 |
3547 | char *tmps; |
3548 | register char *s = start; |
3549 | register char term = *s; |
93a17b20 |
3550 | register char *to; |
3551 | I32 brackets = 1; |
79072805 |
3552 | |
3553 | CLINE; |
3554 | multi_start = curcop->cop_line; |
3555 | multi_open = term; |
93a17b20 |
3556 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
79072805 |
3557 | term = tmps[5]; |
3558 | multi_close = term; |
3559 | |
93a17b20 |
3560 | sv = NEWSV(87,80); |
3561 | sv_upgrade(sv, SVt_PV); |
3562 | SvSTORAGE(sv) = term; |
3563 | SvPOK_only(sv); /* validate pointer */ |
3564 | s++; |
3565 | for (;;) { |
3566 | SvGROW(sv, SvCUR(sv) + (bufend - s) + 1); |
3567 | to = SvPV(sv)+SvCUR(sv); |
3568 | if (multi_open == multi_close) { |
3569 | for (; s < bufend; s++,to++) { |
3570 | if (*s == '\\' && s+1 < bufend && term != '\\') |
3571 | *to++ = *s++; |
3572 | else if (*s == term) |
3573 | break; |
3574 | *to = *s; |
3575 | } |
3576 | } |
3577 | else { |
3578 | for (; s < bufend; s++,to++) { |
3579 | if (*s == '\\' && s+1 < bufend && term != '\\') |
3580 | *to++ = *s++; |
3581 | else if (*s == term && --brackets <= 0) |
3582 | break; |
3583 | else if (*s == multi_open) |
3584 | brackets++; |
3585 | *to = *s; |
3586 | } |
3587 | } |
3588 | *to = '\0'; |
3589 | SvCUR_set(sv, to - SvPV(sv)); |
3590 | |
3591 | if (s < bufend) break; /* string ends on this line? */ |
79072805 |
3592 | |
79072805 |
3593 | if (!rsfp || |
3594 | !(oldoldbufptr = oldbufptr = s = sv_gets(linestr, rsfp, 0))) { |
3595 | curcop->cop_line = multi_start; |
3596 | return Nullch; |
3597 | } |
3598 | curcop->cop_line++; |
3599 | if (perldb) { |
3600 | SV *sv = NEWSV(88,0); |
3601 | |
93a17b20 |
3602 | sv_upgrade(sv, SVt_PVMG); |
79072805 |
3603 | sv_setsv(sv,linestr); |
3604 | av_store(GvAV(curcop->cop_filegv), |
3605 | (I32)curcop->cop_line, sv); |
395c3793 |
3606 | } |
79072805 |
3607 | bufend = SvPV(linestr) + SvCUR(linestr); |
378cc40b |
3608 | } |
79072805 |
3609 | multi_end = curcop->cop_line; |
3610 | s++; |
93a17b20 |
3611 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
3612 | SvLEN_set(sv, SvCUR(sv) + 1); |
3613 | Renew(SvPV(sv), SvLEN(sv), char); |
79072805 |
3614 | } |
3615 | if (lex_stuff) |
93a17b20 |
3616 | lex_repl = sv; |
79072805 |
3617 | else |
93a17b20 |
3618 | lex_stuff = sv; |
378cc40b |
3619 | return s; |
3620 | } |
3621 | |
3622 | char * |
79072805 |
3623 | scan_num(start) |
2f3197b3 |
3624 | char *start; |
378cc40b |
3625 | { |
2f3197b3 |
3626 | register char *s = start; |
378cc40b |
3627 | register char *d; |
79072805 |
3628 | I32 tryi32; |
3629 | double value; |
3630 | SV *sv; |
3631 | I32 floatit; |
93a17b20 |
3632 | char *lastub = 0; |
378cc40b |
3633 | |
3634 | switch (*s) { |
79072805 |
3635 | default: |
3636 | fatal("panic: scan_num"); |
378cc40b |
3637 | case '0': |
3638 | { |
79072805 |
3639 | U32 i; |
3640 | I32 shift; |
378cc40b |
3641 | |
378cc40b |
3642 | if (s[1] == 'x') { |
3643 | shift = 4; |
3644 | s += 2; |
3645 | } |
3646 | else if (s[1] == '.') |
3647 | goto decimal; |
3648 | else |
3649 | shift = 3; |
3650 | i = 0; |
3651 | for (;;) { |
3652 | switch (*s) { |
3653 | default: |
3654 | goto out; |
de3bb511 |
3655 | case '_': |
3656 | s++; |
3657 | break; |
378cc40b |
3658 | case '8': case '9': |
3659 | if (shift != 4) |
a687059c |
3660 | yyerror("Illegal octal digit"); |
378cc40b |
3661 | /* FALL THROUGH */ |
3662 | case '0': case '1': case '2': case '3': case '4': |
3663 | case '5': case '6': case '7': |
3664 | i <<= shift; |
3665 | i += *s++ & 15; |
3666 | break; |
3667 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
3668 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
3669 | if (shift != 4) |
3670 | goto out; |
3671 | i <<= 4; |
3672 | i += (*s++ & 7) + 9; |
3673 | break; |
3674 | } |
3675 | } |
3676 | out: |
79072805 |
3677 | sv = NEWSV(92,0); |
3678 | tryi32 = i; |
3679 | if (tryi32 == i && tryi32 >= 0) |
3680 | sv_setiv(sv,tryi32); |
3681 | else |
3682 | sv_setnv(sv,(double)i); |
378cc40b |
3683 | } |
3684 | break; |
3685 | case '1': case '2': case '3': case '4': case '5': |
3686 | case '6': case '7': case '8': case '9': case '.': |
3687 | decimal: |
378cc40b |
3688 | d = tokenbuf; |
79072805 |
3689 | floatit = FALSE; |
de3bb511 |
3690 | while (isDIGIT(*s) || *s == '_') { |
93a17b20 |
3691 | if (*s == '_') { |
3692 | if (dowarn && lastub && s - lastub != 3) |
3693 | warn("Misplaced _"); |
3694 | lastub = ++s; |
3695 | } |
378cc40b |
3696 | else |
3697 | *d++ = *s++; |
3698 | } |
93a17b20 |
3699 | if (dowarn && lastub && s - lastub != 3) |
3700 | warn("Misplaced _"); |
2f3197b3 |
3701 | if (*s == '.' && s[1] != '.') { |
79072805 |
3702 | floatit = TRUE; |
378cc40b |
3703 | *d++ = *s++; |
de3bb511 |
3704 | while (isDIGIT(*s) || *s == '_') { |
378cc40b |
3705 | if (*s == '_') |
3706 | s++; |
3707 | else |
3708 | *d++ = *s++; |
3709 | } |
3710 | } |
93a17b20 |
3711 | if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) { |
79072805 |
3712 | floatit = TRUE; |
3713 | s++; |
3714 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
378cc40b |
3715 | if (*s == '+' || *s == '-') |
3716 | *d++ = *s++; |
de3bb511 |
3717 | while (isDIGIT(*s)) |
378cc40b |
3718 | *d++ = *s++; |
3719 | } |
3720 | *d = '\0'; |
79072805 |
3721 | sv = NEWSV(92,0); |
3722 | value = atof(tokenbuf); |
3723 | tryi32 = (I32)value; |
3724 | if (!floatit && (double)tryi32 == value) |
3725 | sv_setiv(sv,tryi32); |
2f3197b3 |
3726 | else |
79072805 |
3727 | sv_setnv(sv,value); |
378cc40b |
3728 | break; |
79072805 |
3729 | } |
a687059c |
3730 | |
79072805 |
3731 | yylval.opval = newSVOP(OP_CONST, 0, sv); |
a687059c |
3732 | |
378cc40b |
3733 | return s; |
3734 | } |
3735 | |
79072805 |
3736 | char * |
3737 | scan_formline(s) |
3738 | register char *s; |
378cc40b |
3739 | { |
79072805 |
3740 | register char *eol; |
378cc40b |
3741 | register char *t; |
79072805 |
3742 | SV *stuff = NEWSV(0,0); |
3743 | bool needargs = FALSE; |
378cc40b |
3744 | |
79072805 |
3745 | while (!needargs) { |
3746 | if (*s == '.') { |
3747 | /*SUPPRESS 530*/ |
3748 | for (t = s+1; *t == ' ' || *t == '\t'; t++) ; |
3749 | if (*t == '\n') |
3750 | break; |
3751 | } |
0f85fab0 |
3752 | if (in_eval && !rsfp) { |
93a17b20 |
3753 | eol = strchr(s,'\n'); |
0f85fab0 |
3754 | if (!eol++) |
3755 | eol = bufend; |
3756 | } |
3757 | else |
79072805 |
3758 | eol = bufend = SvPV(linestr) + SvCUR(linestr); |
3759 | if (*s != '#') { |
3760 | sv_catpvn(stuff, s, eol-s); |
3761 | while (s < eol) { |
3762 | if (*s == '@' || *s == '^') { |
3763 | needargs = TRUE; |
3764 | break; |
378cc40b |
3765 | } |
79072805 |
3766 | s++; |
378cc40b |
3767 | } |
79072805 |
3768 | } |
3769 | s = eol; |
3770 | if (rsfp) { |
3771 | s = sv_gets(linestr, rsfp, 0); |
3772 | oldoldbufptr = oldbufptr = bufptr = SvPVn(linestr); |
3773 | if (!s) { |
3774 | s = bufptr; |
3775 | yyerror("Format not terminated"); |
378cc40b |
3776 | break; |
3777 | } |
378cc40b |
3778 | } |
79072805 |
3779 | curcop->cop_line++; |
3780 | } |
3781 | if (SvPOK(stuff)) { |
3782 | if (needargs) { |
3783 | nextval[nexttoke].ival = 0; |
3784 | force_next(','); |
3785 | } |
3786 | else |
3787 | in_format = 2; |
3788 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
3789 | force_next(THING); |
3790 | nextval[nexttoke].ival = OP_FORMLINE; |
3791 | force_next(LSTOP); |
378cc40b |
3792 | } |
79072805 |
3793 | else { |
3794 | sv_free(stuff); |
3795 | in_format = 0; |
3796 | bufptr = s; |
3797 | } |
3798 | return s; |
378cc40b |
3799 | } |
a687059c |
3800 | |
2f3197b3 |
3801 | static void |
a687059c |
3802 | set_csh() |
3803 | { |
ae986130 |
3804 | #ifdef CSH |
3805 | if (!cshlen) |
3806 | cshlen = strlen(cshname); |
3807 | #endif |
a687059c |
3808 | } |