Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* toke.c |
a687059c | 2 | * |
a0d0e21e | 3 | * Copyright (c) 1991-1994, Larry Wall |
a687059c | 4 | * |
d48672a2 LW |
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. | |
378cc40b | 7 | * |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "It all comes from here, the stench and the peril." --Frodo | |
378cc40b LW |
12 | */ |
13 | ||
14 | #include "EXTERN.h" | |
15 | #include "perl.h" | |
378cc40b | 16 | |
a0d0e21e LW |
17 | static void check_uni _((void)); |
18 | static void force_next _((I32 type)); | |
19 | static char *force_word _((char *start, int token, int check_keyword, int allow_pack, int allow_tick)); | |
20 | static SV *q _((SV *sv)); | |
21 | static char *scan_const _((char *start)); | |
22 | static char *scan_formline _((char *s)); | |
23 | static char *scan_heredoc _((char *s)); | |
24 | static char *scan_ident _((char *s, char *send, char *dest, I32 ck_uni)); | |
25 | static char *scan_inputsymbol _((char *start)); | |
26 | static char *scan_pat _((char *start)); | |
27 | static char *scan_str _((char *start)); | |
28 | static char *scan_subst _((char *start)); | |
29 | static char *scan_trans _((char *start)); | |
30 | static char *scan_word _((char *s, char *dest, int allow_package, STRLEN *slp)); | |
31 | static char *skipspace _((char *s)); | |
32 | static void checkcomma _((char *s, char *name, char *what)); | |
33 | static void force_ident _((char *s, int kind)); | |
34 | static void incline _((char *s)); | |
35 | static int intuit_method _((char *s, GV *gv)); | |
36 | static int intuit_more _((char *s)); | |
37 | static I32 lop _((I32 f, expectation x, char *s)); | |
38 | static void missingterm _((char *s)); | |
39 | static void no_op _((char *what, char *s)); | |
40 | static void set_csh _((void)); | |
41 | static I32 sublex_done _((void)); | |
42 | static I32 sublex_start _((void)); | |
43 | #ifdef CRIPPLED_CC | |
44 | static int uni _((I32 f, char *s)); | |
45 | #endif | |
16d20bd9 | 46 | static char * filter_gets _((SV *sv, FILE *fp)); |
2f3197b3 | 47 | |
79072805 LW |
48 | /* The following are arranged oddly so that the guard on the switch statement |
49 | * can get by with a single comparison (if the compiler is smart enough). | |
50 | */ | |
51 | ||
a0d0e21e LW |
52 | #define LEX_NORMAL 9 |
53 | #define LEX_INTERPNORMAL 8 | |
54 | #define LEX_INTERPCASEMOD 7 | |
55 | #define LEX_INTERPSTART 6 | |
56 | #define LEX_INTERPEND 5 | |
57 | #define LEX_INTERPENDMAYBE 4 | |
58 | #define LEX_INTERPCONCAT 3 | |
59 | #define LEX_INTERPCONST 2 | |
60 | #define LEX_FORMLINE 1 | |
79072805 LW |
61 | #define LEX_KNOWNEXT 0 |
62 | ||
395c3793 LW |
63 | #ifdef I_FCNTL |
64 | #include <fcntl.h> | |
65 | #endif | |
fe14fcc3 LW |
66 | #ifdef I_SYS_FILE |
67 | #include <sys/file.h> | |
68 | #endif | |
395c3793 | 69 | |
79072805 LW |
70 | #ifdef ff_next |
71 | #undef ff_next | |
d48672a2 LW |
72 | #endif |
73 | ||
79072805 | 74 | #include "keywords.h" |
fe14fcc3 | 75 | |
ae986130 LW |
76 | #ifdef CLINE |
77 | #undef CLINE | |
78 | #endif | |
79072805 | 79 | #define CLINE (copline = (curcop->cop_line < copline ? curcop->cop_line : copline)) |
378cc40b | 80 | |
79072805 LW |
81 | #define TOKEN(retval) return (bufptr = s,(int)retval) |
82 | #define OPERATOR(retval) return (expect = XTERM,bufptr = s,(int)retval) | |
a0d0e21e | 83 | #define AOPERATOR(retval) return ao((expect = XTERM,bufptr = s,(int)retval)) |
79072805 | 84 | #define PREBLOCK(retval) return (expect = XBLOCK,bufptr = s,(int)retval) |
a0d0e21e | 85 | #define PRETERMBLOCK(retval) return (expect = XTERMBLOCK,bufptr = s,(int)retval) |
79072805 LW |
86 | #define PREREF(retval) return (expect = XREF,bufptr = s,(int)retval) |
87 | #define TERM(retval) return (CLINE, expect = XOPERATOR,bufptr = s,(int)retval) | |
463ee0b2 | 88 | #define LOOPX(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LOOPEX) |
79072805 LW |
89 | #define FTST(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)UNIOP) |
90 | #define FUN0(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC0) | |
91 | #define FUN1(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC1) | |
a0d0e21e LW |
92 | #define BOop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITOROP)) |
93 | #define BAop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITANDOP)) | |
94 | #define SHop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)SHIFTOP)) | |
95 | #define PWop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)POWOP)) | |
79072805 | 96 | #define PMop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)MATCHOP) |
a0d0e21e LW |
97 | #define Aop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)ADDOP)) |
98 | #define Mop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)MULOP)) | |
79072805 LW |
99 | #define Eop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)EQOP) |
100 | #define Rop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)RELOP) | |
2f3197b3 | 101 | |
a687059c LW |
102 | /* This bit of chicanery makes a unary function followed by |
103 | * a parenthesis into a function with one argument, highest precedence. | |
104 | */ | |
2f3197b3 | 105 | #define UNI(f) return(yylval.ival = f, \ |
79072805 | 106 | expect = XTERM, \ |
2f3197b3 LW |
107 | bufptr = s, \ |
108 | last_uni = oldbufptr, \ | |
a0d0e21e | 109 | last_lop_op = f, \ |
a687059c LW |
110 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) ) |
111 | ||
79072805 LW |
112 | #define UNIBRACK(f) return(yylval.ival = f, \ |
113 | bufptr = s, \ | |
114 | last_uni = oldbufptr, \ | |
115 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) ) | |
116 | ||
9f68db38 | 117 | /* grandfather return to old style */ |
79072805 LW |
118 | #define OLDLOP(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LSTOP) |
119 | ||
a0d0e21e LW |
120 | static int |
121 | ao(toketype) | |
122 | int toketype; | |
123 | { | |
124 | if (*bufptr == '=') { | |
125 | bufptr++; | |
126 | if (toketype == ANDAND) | |
127 | yylval.ival = OP_ANDASSIGN; | |
128 | else if (toketype == OROR) | |
129 | yylval.ival = OP_ORASSIGN; | |
130 | toketype = ASSIGNOP; | |
131 | } | |
132 | return toketype; | |
133 | } | |
134 | ||
8990e307 LW |
135 | static void |
136 | no_op(what, s) | |
463ee0b2 | 137 | char *what; |
8990e307 | 138 | char *s; |
463ee0b2 | 139 | { |
8990e307 | 140 | char tmpbuf[128]; |
748a9306 LW |
141 | char *oldbp = bufptr; |
142 | bool is_first = (oldbufptr == SvPVX(linestr)); | |
8990e307 LW |
143 | bufptr = s; |
144 | sprintf(tmpbuf, "%s found where operator expected", what); | |
145 | yywarn(tmpbuf); | |
748a9306 | 146 | if (is_first) |
a0d0e21e | 147 | warn("\t(Missing semicolon on previous line?)\n"); |
748a9306 LW |
148 | else if (oldoldbufptr && isIDFIRST(*oldoldbufptr)) { |
149 | char *t; | |
150 | for (t = oldoldbufptr; *t && (isALNUM(*t) || *t == ':'); t++) ; | |
151 | if (t < bufptr && isSPACE(*t)) | |
152 | warn("\t(Do you need to predeclare %.*s?)\n", | |
153 | t - oldoldbufptr, oldoldbufptr); | |
154 | ||
155 | } | |
156 | else | |
157 | warn("\t(Missing operator before %.*s?)\n", s - oldbp, oldbp); | |
158 | bufptr = oldbp; | |
8990e307 LW |
159 | } |
160 | ||
161 | static void | |
162 | missingterm(s) | |
163 | char *s; | |
164 | { | |
165 | char tmpbuf[3]; | |
166 | char q; | |
167 | if (s) { | |
168 | char *nl = strrchr(s,'\n'); | |
169 | if (nl) | |
170 | *nl = '\0'; | |
171 | } | |
172 | else if (multi_close < 32 || multi_close == 127) { | |
173 | *tmpbuf = '^'; | |
174 | tmpbuf[1] = multi_close ^ 64; | |
175 | s = "\\n"; | |
176 | tmpbuf[2] = '\0'; | |
177 | s = tmpbuf; | |
178 | } | |
179 | else { | |
180 | *tmpbuf = multi_close; | |
181 | tmpbuf[1] = '\0'; | |
182 | s = tmpbuf; | |
183 | } | |
184 | q = strchr(s,'"') ? '\'' : '"'; | |
185 | croak("Can't find string terminator %c%s%c anywhere before EOF",q,s,q); | |
463ee0b2 | 186 | } |
79072805 LW |
187 | |
188 | void | |
a0d0e21e LW |
189 | deprecate(s) |
190 | char *s; | |
191 | { | |
192 | if (dowarn) | |
193 | warn("Use of %s is deprecated", s); | |
194 | } | |
195 | ||
196 | static void | |
197 | depcom() | |
198 | { | |
199 | deprecate("comma-less variable list"); | |
200 | } | |
201 | ||
202 | void | |
8990e307 LW |
203 | lex_start(line) |
204 | SV *line; | |
79072805 | 205 | { |
8990e307 LW |
206 | char *s; |
207 | STRLEN len; | |
208 | ||
463ee0b2 LW |
209 | SAVEINT(lex_dojoin); |
210 | SAVEINT(lex_brackets); | |
211 | SAVEINT(lex_fakebrack); | |
212 | SAVEINT(lex_casemods); | |
213 | SAVEINT(lex_starts); | |
214 | SAVEINT(lex_state); | |
a0d0e21e | 215 | SAVESPTR(lex_inpat); |
463ee0b2 LW |
216 | SAVEINT(lex_inwhat); |
217 | SAVEINT(curcop->cop_line); | |
85e6fe83 LW |
218 | SAVEPPTR(bufptr); |
219 | SAVEPPTR(bufend); | |
220 | SAVEPPTR(oldbufptr); | |
221 | SAVEPPTR(oldoldbufptr); | |
463ee0b2 | 222 | SAVESPTR(linestr); |
85e6fe83 | 223 | SAVEPPTR(lex_brackstack); |
a0d0e21e | 224 | SAVEPPTR(lex_casestack); |
8990e307 | 225 | SAVESPTR(rsfp); |
463ee0b2 | 226 | |
79072805 LW |
227 | lex_state = LEX_NORMAL; |
228 | lex_defer = 0; | |
8990e307 | 229 | expect = XSTATE; |
79072805 LW |
230 | lex_brackets = 0; |
231 | lex_fakebrack = 0; | |
8990e307 | 232 | New(899, lex_brackstack, 120, char); |
a0d0e21e | 233 | New(899, lex_casestack, 12, char); |
8990e307 | 234 | SAVEFREEPV(lex_brackstack); |
a0d0e21e | 235 | SAVEFREEPV(lex_casestack); |
79072805 | 236 | lex_casemods = 0; |
a0d0e21e | 237 | *lex_casestack = '\0'; |
79072805 LW |
238 | lex_dojoin = 0; |
239 | lex_starts = 0; | |
240 | if (lex_stuff) | |
8990e307 | 241 | SvREFCNT_dec(lex_stuff); |
79072805 LW |
242 | lex_stuff = Nullsv; |
243 | if (lex_repl) | |
8990e307 | 244 | SvREFCNT_dec(lex_repl); |
79072805 LW |
245 | lex_repl = Nullsv; |
246 | lex_inpat = 0; | |
247 | lex_inwhat = 0; | |
8990e307 LW |
248 | linestr = line; |
249 | if (SvREADONLY(linestr)) | |
250 | linestr = sv_2mortal(newSVsv(linestr)); | |
251 | s = SvPV(linestr, len); | |
252 | if (len && s[len-1] != ';') { | |
a0d0e21e | 253 | if (!(SvFLAGS(linestr) & SVs_TEMP)) |
8990e307 LW |
254 | linestr = sv_2mortal(newSVsv(linestr)); |
255 | sv_catpvn(linestr, "\n;", 2); | |
256 | } | |
257 | SvTEMP_off(linestr); | |
463ee0b2 | 258 | oldoldbufptr = oldbufptr = bufptr = SvPVX(linestr); |
79072805 | 259 | bufend = bufptr + SvCUR(linestr); |
93a17b20 LW |
260 | rs = "\n"; |
261 | rslen = 1; | |
262 | rschar = '\n'; | |
263 | rspara = 0; | |
8990e307 | 264 | rsfp = 0; |
79072805 | 265 | } |
a687059c | 266 | |
463ee0b2 LW |
267 | void |
268 | lex_end() | |
269 | { | |
463ee0b2 LW |
270 | } |
271 | ||
272 | static void | |
273 | incline(s) | |
274 | char *s; | |
275 | { | |
276 | char *t; | |
277 | char *n; | |
278 | char ch; | |
279 | int sawline = 0; | |
280 | ||
281 | curcop->cop_line++; | |
282 | if (*s++ != '#') | |
283 | return; | |
284 | while (*s == ' ' || *s == '\t') s++; | |
285 | if (strnEQ(s, "line ", 5)) { | |
286 | s += 5; | |
287 | sawline = 1; | |
288 | } | |
289 | if (!isDIGIT(*s)) | |
290 | return; | |
291 | n = s; | |
292 | while (isDIGIT(*s)) | |
293 | s++; | |
294 | while (*s == ' ' || *s == '\t') | |
295 | s++; | |
296 | if (*s == '"' && (t = strchr(s+1, '"'))) | |
297 | s++; | |
298 | else { | |
299 | if (!sawline) | |
300 | return; /* false alarm */ | |
301 | for (t = s; !isSPACE(*t); t++) ; | |
302 | } | |
303 | ch = *t; | |
304 | *t = '\0'; | |
305 | if (t - s > 0) | |
306 | curcop->cop_filegv = gv_fetchfile(s); | |
307 | else | |
308 | curcop->cop_filegv = gv_fetchfile(origfilename); | |
309 | *t = ch; | |
310 | curcop->cop_line = atoi(n)-1; | |
311 | } | |
312 | ||
8990e307 | 313 | static char * |
a687059c LW |
314 | skipspace(s) |
315 | register char *s; | |
316 | { | |
85e6fe83 | 317 | if (lex_formbrack && lex_brackets <= lex_formbrack) { |
463ee0b2 LW |
318 | while (s < bufend && (*s == ' ' || *s == '\t')) |
319 | s++; | |
320 | return s; | |
321 | } | |
322 | for (;;) { | |
323 | while (s < bufend && isSPACE(*s)) | |
324 | s++; | |
325 | if (s < bufend && *s == '#') { | |
326 | while (s < bufend && *s != '\n') | |
327 | s++; | |
328 | if (s < bufend) | |
329 | s++; | |
330 | } | |
a0d0e21e | 331 | if (s < bufend || !rsfp || lex_state != LEX_NORMAL) |
463ee0b2 | 332 | return s; |
16d20bd9 | 333 | if ((s = filter_gets(linestr, rsfp)) == Nullch) { |
a0d0e21e LW |
334 | if (minus_n || minus_p) { |
335 | sv_setpv(linestr,minus_p ? ";}continue{print" : ""); | |
336 | sv_catpv(linestr,";}"); | |
337 | minus_n = minus_p = 0; | |
338 | } | |
339 | else | |
340 | sv_setpv(linestr,";"); | |
8990e307 | 341 | oldoldbufptr = oldbufptr = bufptr = s = SvPVX(linestr); |
a0d0e21e LW |
342 | bufend = SvPVX(linestr) + SvCUR(linestr); |
343 | if (preprocess && !in_eval) | |
8990e307 LW |
344 | (void)my_pclose(rsfp); |
345 | else if ((FILE*)rsfp == stdin) | |
346 | clearerr(stdin); | |
347 | else | |
348 | (void)fclose(rsfp); | |
349 | rsfp = Nullfp; | |
463ee0b2 LW |
350 | return s; |
351 | } | |
352 | oldoldbufptr = oldbufptr = bufptr = s; | |
353 | bufend = bufptr + SvCUR(linestr); | |
a0d0e21e | 354 | incline(s); |
8990e307 LW |
355 | if (perldb && curstash != debstash) { |
356 | SV *sv = NEWSV(85,0); | |
357 | ||
358 | sv_upgrade(sv, SVt_PVMG); | |
359 | sv_setsv(sv,linestr); | |
360 | av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv); | |
361 | } | |
463ee0b2 | 362 | } |
a687059c | 363 | } |
378cc40b | 364 | |
8990e307 | 365 | static void |
2f3197b3 LW |
366 | check_uni() { |
367 | char *s; | |
368 | char ch; | |
a0d0e21e | 369 | char *t; |
2f3197b3 LW |
370 | |
371 | if (oldoldbufptr != last_uni) | |
372 | return; | |
373 | while (isSPACE(*last_uni)) | |
374 | last_uni++; | |
e334a159 | 375 | for (s = last_uni; isALNUM(*s) || *s == '-'; s++) ; |
a0d0e21e LW |
376 | if ((t = strchr(s, '(')) && t < bufptr) |
377 | return; | |
2f3197b3 LW |
378 | ch = *s; |
379 | *s = '\0'; | |
380 | warn("Warning: Use of \"%s\" without parens is ambiguous", last_uni); | |
381 | *s = ch; | |
382 | } | |
383 | ||
ffed7fef LW |
384 | #ifdef CRIPPLED_CC |
385 | ||
386 | #undef UNI | |
ffed7fef | 387 | #define UNI(f) return uni(f,s) |
ffed7fef | 388 | |
8990e307 | 389 | static int |
ffed7fef | 390 | uni(f,s) |
79072805 | 391 | I32 f; |
ffed7fef LW |
392 | char *s; |
393 | { | |
394 | yylval.ival = f; | |
79072805 | 395 | expect = XTERM; |
ffed7fef | 396 | bufptr = s; |
2f3197b3 | 397 | last_uni = oldbufptr; |
a0d0e21e | 398 | last_lop_op = f; |
ffed7fef LW |
399 | if (*s == '(') |
400 | return FUNC1; | |
401 | s = skipspace(s); | |
402 | if (*s == '(') | |
403 | return FUNC1; | |
404 | else | |
405 | return UNIOP; | |
406 | } | |
407 | ||
a0d0e21e LW |
408 | #endif /* CRIPPLED_CC */ |
409 | ||
410 | #define LOP(f,x) return lop(f,x,s) | |
411 | ||
8990e307 | 412 | static I32 |
a0d0e21e | 413 | lop(f,x,s) |
79072805 | 414 | I32 f; |
a0d0e21e | 415 | expectation x; |
ffed7fef LW |
416 | char *s; |
417 | { | |
79072805 | 418 | yylval.ival = f; |
35c8bce7 | 419 | CLINE; |
a0d0e21e | 420 | expect = x; |
79072805 | 421 | bufptr = s; |
8990e307 LW |
422 | last_lop = oldbufptr; |
423 | last_lop_op = f; | |
a0d0e21e LW |
424 | if (nexttoke) |
425 | return LSTOP; | |
79072805 LW |
426 | if (*s == '(') |
427 | return FUNC; | |
428 | s = skipspace(s); | |
429 | if (*s == '(') | |
430 | return FUNC; | |
431 | else | |
432 | return LSTOP; | |
433 | } | |
434 | ||
8990e307 | 435 | static void |
79072805 LW |
436 | force_next(type) |
437 | I32 type; | |
438 | { | |
439 | nexttype[nexttoke] = type; | |
440 | nexttoke++; | |
441 | if (lex_state != LEX_KNOWNEXT) { | |
442 | lex_defer = lex_state; | |
463ee0b2 | 443 | lex_expect = expect; |
79072805 LW |
444 | lex_state = LEX_KNOWNEXT; |
445 | } | |
446 | } | |
447 | ||
8990e307 | 448 | static char * |
a0d0e21e | 449 | force_word(start,token,check_keyword,allow_pack,allow_tick) |
463ee0b2 | 450 | register char *start; |
79072805 | 451 | int token; |
463ee0b2 | 452 | int check_keyword; |
a0d0e21e | 453 | int allow_pack; |
463ee0b2 | 454 | int allow_tick; |
79072805 | 455 | { |
463ee0b2 LW |
456 | register char *s; |
457 | STRLEN len; | |
458 | ||
459 | start = skipspace(start); | |
460 | s = start; | |
a0d0e21e LW |
461 | if (isIDFIRST(*s) || |
462 | (allow_pack && *s == ':') || | |
463 | (allow_tick && *s == '\'') ) | |
464 | { | |
465 | s = scan_word(s, tokenbuf, allow_pack, &len); | |
463ee0b2 LW |
466 | if (check_keyword && keyword(tokenbuf, len)) |
467 | return start; | |
468 | if (token == METHOD) { | |
469 | s = skipspace(s); | |
470 | if (*s == '(') | |
471 | expect = XTERM; | |
472 | else { | |
473 | expect = XOPERATOR; | |
474 | force_next(')'); | |
475 | force_next('('); | |
476 | } | |
79072805 | 477 | } |
463ee0b2 | 478 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST,0, newSVpv(tokenbuf,0)); |
8990e307 | 479 | nextval[nexttoke].opval->op_private |= OPpCONST_BARE; |
79072805 LW |
480 | force_next(token); |
481 | } | |
482 | return s; | |
483 | } | |
484 | ||
8990e307 | 485 | static void |
a0d0e21e | 486 | force_ident(s, kind) |
79072805 | 487 | register char *s; |
a0d0e21e | 488 | int kind; |
79072805 LW |
489 | { |
490 | if (s && *s) { | |
748a9306 LW |
491 | OP* op = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0)); |
492 | nextval[nexttoke].opval = op; | |
79072805 | 493 | force_next(WORD); |
748a9306 LW |
494 | if (kind) { |
495 | op->op_private = OPpCONST_ENTERED; | |
a0d0e21e LW |
496 | gv_fetchpv(s, TRUE, |
497 | kind == '$' ? SVt_PV : | |
498 | kind == '@' ? SVt_PVAV : | |
499 | kind == '%' ? SVt_PVHV : | |
500 | SVt_PVGV | |
501 | ); | |
748a9306 | 502 | } |
79072805 LW |
503 | } |
504 | } | |
505 | ||
8990e307 | 506 | static SV * |
79072805 LW |
507 | q(sv) |
508 | SV *sv; | |
509 | { | |
510 | register char *s; | |
511 | register char *send; | |
512 | register char *d; | |
463ee0b2 | 513 | STRLEN len; |
79072805 LW |
514 | |
515 | if (!SvLEN(sv)) | |
516 | return sv; | |
517 | ||
a0d0e21e | 518 | s = SvPV_force(sv, len); |
748a9306 LW |
519 | if (SvIVX(sv) == -1) |
520 | return sv; | |
463ee0b2 | 521 | send = s + len; |
79072805 LW |
522 | while (s < send && *s != '\\') |
523 | s++; | |
524 | if (s == send) | |
525 | return sv; | |
526 | d = s; | |
79072805 LW |
527 | while (s < send) { |
528 | if (*s == '\\') { | |
a0d0e21e | 529 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
530 | s++; /* all that, just for this */ |
531 | } | |
532 | *d++ = *s++; | |
533 | } | |
534 | *d = '\0'; | |
463ee0b2 | 535 | SvCUR_set(sv, d - SvPVX(sv)); |
79072805 LW |
536 | |
537 | return sv; | |
538 | } | |
539 | ||
8990e307 | 540 | static I32 |
79072805 LW |
541 | sublex_start() |
542 | { | |
543 | register I32 op_type = yylval.ival; | |
79072805 LW |
544 | |
545 | if (op_type == OP_NULL) { | |
546 | yylval.opval = lex_op; | |
547 | lex_op = Nullop; | |
548 | return THING; | |
549 | } | |
550 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
551 | yylval.opval = (OP*)newSVOP(op_type, 0, q(lex_stuff)); | |
552 | lex_stuff = Nullsv; | |
553 | return THING; | |
554 | } | |
555 | ||
556 | push_scope(); | |
557 | SAVEINT(lex_dojoin); | |
558 | SAVEINT(lex_brackets); | |
559 | SAVEINT(lex_fakebrack); | |
560 | SAVEINT(lex_casemods); | |
561 | SAVEINT(lex_starts); | |
562 | SAVEINT(lex_state); | |
a0d0e21e | 563 | SAVESPTR(lex_inpat); |
79072805 LW |
564 | SAVEINT(lex_inwhat); |
565 | SAVEINT(curcop->cop_line); | |
85e6fe83 LW |
566 | SAVEPPTR(bufptr); |
567 | SAVEPPTR(oldbufptr); | |
568 | SAVEPPTR(oldoldbufptr); | |
79072805 | 569 | SAVESPTR(linestr); |
85e6fe83 | 570 | SAVEPPTR(lex_brackstack); |
a0d0e21e | 571 | SAVEPPTR(lex_casestack); |
79072805 LW |
572 | |
573 | linestr = lex_stuff; | |
574 | lex_stuff = Nullsv; | |
575 | ||
463ee0b2 | 576 | bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr); |
79072805 | 577 | bufend += SvCUR(linestr); |
8990e307 | 578 | SAVEFREESV(linestr); |
79072805 LW |
579 | |
580 | lex_dojoin = FALSE; | |
581 | lex_brackets = 0; | |
582 | lex_fakebrack = 0; | |
8990e307 | 583 | New(899, lex_brackstack, 120, char); |
a0d0e21e | 584 | New(899, lex_casestack, 12, char); |
8990e307 | 585 | SAVEFREEPV(lex_brackstack); |
a0d0e21e | 586 | SAVEFREEPV(lex_casestack); |
79072805 | 587 | lex_casemods = 0; |
a0d0e21e | 588 | *lex_casestack = '\0'; |
79072805 LW |
589 | lex_starts = 0; |
590 | lex_state = LEX_INTERPCONCAT; | |
591 | curcop->cop_line = multi_start; | |
592 | ||
593 | lex_inwhat = op_type; | |
594 | if (op_type == OP_MATCH || op_type == OP_SUBST) | |
a0d0e21e | 595 | lex_inpat = lex_op; |
79072805 LW |
596 | else |
597 | lex_inpat = 0; | |
598 | ||
463ee0b2 | 599 | expect = XTERM; |
79072805 LW |
600 | force_next('('); |
601 | if (lex_op) { | |
602 | yylval.opval = lex_op; | |
603 | lex_op = Nullop; | |
604 | return PMFUNC; | |
605 | } | |
606 | else | |
607 | return FUNC; | |
608 | } | |
609 | ||
8990e307 | 610 | static I32 |
79072805 LW |
611 | sublex_done() |
612 | { | |
613 | if (!lex_starts++) { | |
614 | expect = XOPERATOR; | |
93a17b20 | 615 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv("",0)); |
79072805 LW |
616 | return THING; |
617 | } | |
618 | ||
619 | if (lex_casemods) { /* oops, we've got some unbalanced parens */ | |
620 | lex_state = LEX_INTERPCASEMOD; | |
621 | return yylex(); | |
622 | } | |
623 | ||
79072805 LW |
624 | /* Is there a right-hand side to take care of? */ |
625 | if (lex_repl && (lex_inwhat == OP_SUBST || lex_inwhat == OP_TRANS)) { | |
626 | linestr = lex_repl; | |
627 | lex_inpat = 0; | |
463ee0b2 | 628 | bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr); |
79072805 | 629 | bufend += SvCUR(linestr); |
8990e307 | 630 | SAVEFREESV(linestr); |
79072805 LW |
631 | lex_dojoin = FALSE; |
632 | lex_brackets = 0; | |
633 | lex_fakebrack = 0; | |
634 | lex_casemods = 0; | |
a0d0e21e | 635 | *lex_casestack = '\0'; |
79072805 LW |
636 | lex_starts = 0; |
637 | if (SvCOMPILED(lex_repl)) { | |
638 | lex_state = LEX_INTERPNORMAL; | |
639 | lex_starts++; | |
640 | } | |
641 | else | |
642 | lex_state = LEX_INTERPCONCAT; | |
643 | lex_repl = Nullsv; | |
644 | return ','; | |
ffed7fef LW |
645 | } |
646 | else { | |
79072805 | 647 | pop_scope(); |
463ee0b2 | 648 | bufend = SvPVX(linestr); |
79072805 LW |
649 | bufend += SvCUR(linestr); |
650 | expect = XOPERATOR; | |
651 | return ')'; | |
ffed7fef LW |
652 | } |
653 | } | |
654 | ||
8990e307 | 655 | static char * |
79072805 LW |
656 | scan_const(start) |
657 | char *start; | |
658 | { | |
659 | register char *send = bufend; | |
660 | SV *sv = NEWSV(93, send - start); | |
661 | register char *s = start; | |
463ee0b2 | 662 | register char *d = SvPVX(sv); |
79072805 LW |
663 | bool dorange = FALSE; |
664 | I32 len; | |
665 | char *leave = | |
666 | lex_inpat | |
748a9306 | 667 | ? "\\.^$@AGZdDwWsSbB+*?|()-nrtfeaxc0123456789[{]} \t\n\r\f\v#" |
79072805 LW |
668 | : (lex_inwhat & OP_TRANS) |
669 | ? "" | |
670 | : ""; | |
671 | ||
672 | while (s < send || dorange) { | |
673 | if (lex_inwhat == OP_TRANS) { | |
674 | if (dorange) { | |
675 | I32 i; | |
676 | I32 max; | |
463ee0b2 | 677 | i = d - SvPVX(sv); |
79072805 | 678 | SvGROW(sv, SvLEN(sv) + 256); |
463ee0b2 | 679 | d = SvPVX(sv) + i; |
79072805 LW |
680 | d -= 2; |
681 | max = d[1] & 0377; | |
682 | for (i = (*d & 0377); i <= max; i++) | |
683 | *d++ = i; | |
684 | dorange = FALSE; | |
685 | continue; | |
686 | } | |
687 | else if (*s == '-' && s+1 < send && s != start) { | |
688 | dorange = TRUE; | |
689 | s++; | |
690 | } | |
691 | } | |
748a9306 LW |
692 | else if (*s == '(' && lex_inpat && s[1] == '?' && s[2] == '#') { |
693 | while (s < send && *s != ')') | |
694 | *d++ = *s++; | |
695 | } | |
696 | else if (*s == '#' && lex_inpat && | |
697 | ((PMOP*)lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
698 | while (s+1 < send && *s != '\n') | |
699 | *d++ = *s++; | |
700 | } | |
a0d0e21e | 701 | else if (*s == '@' && s[1] && (isALNUM(s[1]) || strchr(":'{$", s[1]))) |
79072805 LW |
702 | break; |
703 | else if (*s == '$') { | |
704 | if (!lex_inpat) /* not a regexp, so $ must be var */ | |
705 | break; | |
a0d0e21e | 706 | if (s + 1 < send && !strchr(")| \n\t", s[1])) |
79072805 LW |
707 | break; /* in regexp, $ might be tail anchor */ |
708 | } | |
709 | if (*s == '\\' && s+1 < send) { | |
710 | s++; | |
93a17b20 | 711 | if (*s && strchr(leave, *s)) { |
79072805 LW |
712 | *d++ = '\\'; |
713 | *d++ = *s++; | |
714 | continue; | |
715 | } | |
716 | if (lex_inwhat == OP_SUBST && !lex_inpat && | |
a0d0e21e | 717 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 718 | { |
a0d0e21e LW |
719 | if (dowarn) |
720 | warn("\\%c better written as $%c", *s, *s); | |
79072805 LW |
721 | *--s = '$'; |
722 | break; | |
723 | } | |
a0d0e21e | 724 | if (lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
725 | --s; |
726 | break; | |
727 | } | |
728 | switch (*s) { | |
729 | case '-': | |
730 | if (lex_inwhat == OP_TRANS) { | |
731 | *d++ = *s++; | |
732 | continue; | |
733 | } | |
734 | /* FALL THROUGH */ | |
735 | default: | |
736 | *d++ = *s++; | |
737 | continue; | |
738 | case '0': case '1': case '2': case '3': | |
739 | case '4': case '5': case '6': case '7': | |
740 | *d++ = scan_oct(s, 3, &len); | |
741 | s += len; | |
742 | continue; | |
743 | case 'x': | |
744 | *d++ = scan_hex(++s, 2, &len); | |
745 | s += len; | |
746 | continue; | |
747 | case 'c': | |
748 | s++; | |
749 | *d = *s++; | |
750 | if (isLOWER(*d)) | |
a0d0e21e | 751 | *d = toUPPER(*d); |
79072805 LW |
752 | *d++ ^= 64; |
753 | continue; | |
754 | case 'b': | |
755 | *d++ = '\b'; | |
756 | break; | |
757 | case 'n': | |
758 | *d++ = '\n'; | |
759 | break; | |
760 | case 'r': | |
761 | *d++ = '\r'; | |
762 | break; | |
763 | case 'f': | |
764 | *d++ = '\f'; | |
765 | break; | |
766 | case 't': | |
767 | *d++ = '\t'; | |
768 | break; | |
769 | case 'e': | |
770 | *d++ = '\033'; | |
771 | break; | |
772 | case 'a': | |
773 | *d++ = '\007'; | |
774 | break; | |
775 | } | |
776 | s++; | |
777 | continue; | |
778 | } | |
779 | *d++ = *s++; | |
780 | } | |
781 | *d = '\0'; | |
463ee0b2 | 782 | SvCUR_set(sv, d - SvPVX(sv)); |
79072805 LW |
783 | SvPOK_on(sv); |
784 | ||
785 | if (SvCUR(sv) + 5 < SvLEN(sv)) { | |
786 | SvLEN_set(sv, SvCUR(sv) + 1); | |
463ee0b2 | 787 | Renew(SvPVX(sv), SvLEN(sv), char); |
79072805 LW |
788 | } |
789 | if (s > bufptr) | |
790 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); | |
791 | else | |
8990e307 | 792 | SvREFCNT_dec(sv); |
79072805 LW |
793 | return s; |
794 | } | |
795 | ||
796 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ | |
8990e307 | 797 | static int |
79072805 LW |
798 | intuit_more(s) |
799 | register char *s; | |
800 | { | |
801 | if (lex_brackets) | |
802 | return TRUE; | |
803 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
804 | return TRUE; | |
805 | if (*s != '{' && *s != '[') | |
806 | return FALSE; | |
807 | if (!lex_inpat) | |
808 | return TRUE; | |
809 | ||
810 | /* In a pattern, so maybe we have {n,m}. */ | |
811 | if (*s == '{') { | |
812 | s++; | |
813 | if (!isDIGIT(*s)) | |
814 | return TRUE; | |
815 | while (isDIGIT(*s)) | |
816 | s++; | |
817 | if (*s == ',') | |
818 | s++; | |
819 | while (isDIGIT(*s)) | |
820 | s++; | |
821 | if (*s == '}') | |
822 | return FALSE; | |
823 | return TRUE; | |
824 | ||
825 | } | |
826 | ||
827 | /* On the other hand, maybe we have a character class */ | |
828 | ||
829 | s++; | |
830 | if (*s == ']' || *s == '^') | |
831 | return FALSE; | |
832 | else { | |
833 | int weight = 2; /* let's weigh the evidence */ | |
834 | char seen[256]; | |
835 | unsigned char un_char = 0, last_un_char; | |
93a17b20 | 836 | char *send = strchr(s,']'); |
79072805 LW |
837 | char tmpbuf[512]; |
838 | ||
839 | if (!send) /* has to be an expression */ | |
840 | return TRUE; | |
841 | ||
842 | Zero(seen,256,char); | |
843 | if (*s == '$') | |
844 | weight -= 3; | |
845 | else if (isDIGIT(*s)) { | |
846 | if (s[1] != ']') { | |
847 | if (isDIGIT(s[1]) && s[2] == ']') | |
848 | weight -= 10; | |
849 | } | |
850 | else | |
851 | weight -= 100; | |
852 | } | |
853 | for (; s < send; s++) { | |
854 | last_un_char = un_char; | |
855 | un_char = (unsigned char)*s; | |
856 | switch (*s) { | |
857 | case '@': | |
858 | case '&': | |
859 | case '$': | |
860 | weight -= seen[un_char] * 10; | |
861 | if (isALNUM(s[1])) { | |
862 | scan_ident(s,send,tmpbuf,FALSE); | |
a0d0e21e | 863 | if ((int)strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE, SVt_PV)) |
79072805 LW |
864 | weight -= 100; |
865 | else | |
866 | weight -= 10; | |
867 | } | |
868 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
869 | strchr("[#!%*<>()-=",s[1])) { |
870 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
871 | weight -= 10; |
872 | else | |
873 | weight -= 1; | |
874 | } | |
875 | break; | |
876 | case '\\': | |
877 | un_char = 254; | |
878 | if (s[1]) { | |
93a17b20 | 879 | if (strchr("wds]",s[1])) |
79072805 LW |
880 | weight += 100; |
881 | else if (seen['\''] || seen['"']) | |
882 | weight += 1; | |
93a17b20 | 883 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
884 | weight += 40; |
885 | else if (isDIGIT(s[1])) { | |
886 | weight += 40; | |
887 | while (s[1] && isDIGIT(s[1])) | |
888 | s++; | |
889 | } | |
890 | } | |
891 | else | |
892 | weight += 100; | |
893 | break; | |
894 | case '-': | |
895 | if (s[1] == '\\') | |
896 | weight += 50; | |
93a17b20 | 897 | if (strchr("aA01! ",last_un_char)) |
79072805 | 898 | weight += 30; |
93a17b20 | 899 | if (strchr("zZ79~",s[1])) |
79072805 LW |
900 | weight += 30; |
901 | break; | |
902 | default: | |
93a17b20 | 903 | if (!isALNUM(last_un_char) && !strchr("$@&",last_un_char) && |
79072805 LW |
904 | isALPHA(*s) && s[1] && isALPHA(s[1])) { |
905 | char *d = tmpbuf; | |
906 | while (isALPHA(*s)) | |
907 | *d++ = *s++; | |
908 | *d = '\0'; | |
909 | if (keyword(tmpbuf, d - tmpbuf)) | |
910 | weight -= 150; | |
911 | } | |
912 | if (un_char == last_un_char + 1) | |
913 | weight += 5; | |
914 | weight -= seen[un_char]; | |
915 | break; | |
916 | } | |
917 | seen[un_char]++; | |
918 | } | |
919 | if (weight >= 0) /* probably a character class */ | |
920 | return FALSE; | |
921 | } | |
922 | ||
923 | return TRUE; | |
924 | } | |
ffed7fef | 925 | |
a0d0e21e LW |
926 | static int |
927 | intuit_method(start,gv) | |
928 | char *start; | |
929 | GV *gv; | |
930 | { | |
931 | char *s = start + (*start == '$'); | |
932 | char tmpbuf[1024]; | |
933 | STRLEN len; | |
934 | GV* indirgv; | |
935 | ||
936 | if (gv) { | |
937 | if (GvIO(gv)) | |
938 | return 0; | |
939 | if (!GvCV(gv)) | |
940 | gv = 0; | |
941 | } | |
942 | s = scan_word(s, tmpbuf, TRUE, &len); | |
943 | if (*start == '$') { | |
944 | if (gv || last_lop_op == OP_PRINT || isUPPER(*tokenbuf)) | |
945 | return 0; | |
946 | s = skipspace(s); | |
947 | bufptr = start; | |
948 | expect = XREF; | |
949 | return *s == '(' ? FUNCMETH : METHOD; | |
950 | } | |
951 | if (!keyword(tmpbuf, len)) { | |
952 | indirgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVCV); | |
953 | if (indirgv && GvCV(indirgv)) | |
954 | return 0; | |
955 | /* filehandle or package name makes it a method */ | |
956 | if (!gv || GvIO(indirgv) || gv_stashpv(tmpbuf, FALSE)) { | |
957 | s = skipspace(s); | |
958 | nextval[nexttoke].opval = | |
959 | (OP*)newSVOP(OP_CONST, 0, | |
960 | newSVpv(tmpbuf,0)); | |
961 | nextval[nexttoke].opval->op_private = | |
962 | OPpCONST_BARE; | |
963 | expect = XTERM; | |
964 | force_next(WORD); | |
965 | bufptr = s; | |
966 | return *s == '(' ? FUNCMETH : METHOD; | |
967 | } | |
968 | } | |
969 | return 0; | |
970 | } | |
971 | ||
972 | static char* | |
973 | incl_perldb() | |
974 | { | |
975 | if (perldb) { | |
976 | char *pdb = getenv("PERL5DB"); | |
977 | ||
978 | if (pdb) | |
979 | return pdb; | |
980 | return "BEGIN { require 'perl5db.pl' }"; | |
981 | } | |
982 | return ""; | |
983 | } | |
984 | ||
985 | ||
16d20bd9 AD |
986 | /* Encoded script support. filter_add() effectively inserts a |
987 | * 'pre-processing' function into the current source input stream. | |
988 | * Note that the filter function only applies to the current source file | |
989 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
990 | * | |
991 | * The datasv parameter (which may be NULL) can be used to pass | |
992 | * private data to this instance of the filter. The filter function | |
993 | * can recover the SV using the FILTER_DATA macro and use it to | |
994 | * store private buffers and state information. | |
995 | * | |
996 | * The supplied datasv parameter is upgraded to a PVIO type | |
997 | * and the IoDIRP field is used to store the function pointer. | |
998 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for | |
999 | * private use must be set using malloc'd pointers. | |
1000 | */ | |
1001 | static int filter_debug = 0; | |
1002 | ||
1003 | SV * | |
1004 | filter_add(funcp, datasv) | |
1005 | filter_t funcp; | |
1006 | SV *datasv; | |
1007 | { | |
1008 | if (!funcp){ /* temporary handy debugging hack to be deleted */ | |
1009 | filter_debug = atoi((char*)datasv); | |
1010 | return NULL; | |
1011 | } | |
1012 | if (!rsfp_filters) | |
1013 | rsfp_filters = newAV(); | |
1014 | if (!datasv) | |
1015 | datasv = newSV(0); | |
1016 | if (!SvUPGRADE(datasv, SVt_PVIO)) | |
1017 | die("Can't upgrade filter_add data to SVt_PVIO"); | |
1018 | IoDIRP(datasv) = (DIR*)funcp; /* stash funcp into spare field */ | |
1019 | if (filter_debug) | |
1020 | warn("filter_add func %lx (%s)", funcp, SvPV(datasv,na)); | |
1021 | av_push(rsfp_filters, datasv); | |
1022 | return(datasv); | |
1023 | } | |
1024 | ||
1025 | ||
1026 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 1027 | void |
16d20bd9 AD |
1028 | filter_del(funcp) |
1029 | filter_t funcp; | |
1030 | { | |
1031 | if (filter_debug) | |
1032 | warn("filter_del func %lx", funcp); | |
1033 | if (!rsfp_filters || AvFILL(rsfp_filters)<0) | |
1034 | return; | |
1035 | /* if filter is on top of stack (usual case) just pop it off */ | |
1036 | if (IoDIRP(FILTER_DATA(AvFILL(rsfp_filters))) == (void*)funcp){ | |
1037 | sv_free(av_pop(rsfp_filters)); | |
1038 | return; | |
1039 | } | |
1040 | /* we need to search for the correct entry and clear it */ | |
1041 | die("filter_del can only delete in reverse order (currently)"); | |
1042 | } | |
1043 | ||
1044 | ||
1045 | /* Invoke the n'th filter function for the current rsfp. */ | |
1046 | I32 | |
1047 | filter_read(idx, buf_sv, maxlen) | |
1048 | int idx; | |
1049 | SV *buf_sv; | |
1050 | int maxlen; /* 0 = read one text line */ | |
a0d0e21e | 1051 | { |
16d20bd9 AD |
1052 | filter_t funcp; |
1053 | SV *datasv = NULL; | |
1054 | if (!rsfp_filters) | |
1055 | return -1; | |
1056 | if (idx > AvFILL(rsfp_filters)){ /* Any more filters? */ | |
1057 | /* Provide a default input filter to make life easy. */ | |
1058 | /* Note that we append to the line. This is handy. */ | |
1059 | /* We ignore maxlen here */ | |
1060 | if (filter_debug) | |
1061 | warn("filter_read %d: from rsfp\n", idx); | |
1062 | if (maxlen) { | |
1063 | /* Want a block */ | |
1064 | int len ; | |
1065 | int old_len = SvCUR(buf_sv) ; | |
1066 | ||
1067 | /* ensure buf_sv is large enough */ | |
1068 | SvGROW(buf_sv, old_len + maxlen) ; | |
1069 | if ((len = fread(SvPVX(buf_sv) + old_len, 1, maxlen, rsfp)) <= 0) | |
1070 | return len ; | |
1071 | SvCUR_set(buf_sv, old_len + len) ; | |
1072 | } else { | |
1073 | /* Want a line */ | |
1074 | if (sv_gets(buf_sv, rsfp, (SvCUR(buf_sv)>0) ? 1 : 0) == NULL) | |
1075 | return -1; /* end of file */ | |
1076 | } | |
1077 | return SvCUR(buf_sv); | |
1078 | } | |
1079 | /* Skip this filter slot if filter has been deleted */ | |
1080 | if ( (datasv = FILTER_DATA(idx)) == &sv_undef){ | |
1081 | if (filter_debug) | |
1082 | warn("filter_read %d: skipped (filter deleted)\n", idx); | |
1083 | return FILTER_READ(idx+1, buf_sv, maxlen); /* recurse */ | |
1084 | } | |
1085 | /* Get function pointer hidden within datasv */ | |
1086 | funcp = (filter_t)IoDIRP(datasv); | |
1087 | if (filter_debug) | |
1088 | warn("filter_read %d: via function %lx (%s)\n", | |
1089 | idx, funcp, SvPV(datasv,na)); | |
1090 | /* Call function. The function is expected to */ | |
1091 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
1092 | /* Return: <0:error/eof, >=0:not eof (see yylex()) */ | |
1093 | return (*funcp)(idx, buf_sv, maxlen); | |
1094 | } | |
1095 | ||
1096 | static char * | |
1097 | filter_gets(sv,fp) | |
1098 | register SV *sv; | |
1099 | register FILE *fp; | |
1100 | { | |
1101 | if (rsfp_filters) { | |
1102 | ||
1103 | SvCUR_set(sv, 0); /* start with empty line */ | |
1104 | if (FILTER_READ(0, sv, 0) > 0) | |
1105 | return ( SvPVX(sv) ) ; | |
1106 | else | |
1107 | return Nullch ; | |
1108 | } | |
1109 | else | |
1110 | return (sv_gets(sv, fp, 0)) ; | |
1111 | ||
a0d0e21e LW |
1112 | } |
1113 | ||
1114 | ||
748a9306 LW |
1115 | #ifdef DEBUGGING |
1116 | static char* exp_name[] = | |
a0d0e21e | 1117 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "TERMBLOCK" }; |
748a9306 | 1118 | #endif |
463ee0b2 LW |
1119 | |
1120 | extern int yychar; /* last token */ | |
1121 | ||
2f3197b3 | 1122 | int |
378cc40b LW |
1123 | yylex() |
1124 | { | |
79072805 | 1125 | register char *s; |
378cc40b | 1126 | register char *d; |
79072805 | 1127 | register I32 tmp; |
463ee0b2 | 1128 | STRLEN len; |
a687059c | 1129 | |
79072805 LW |
1130 | switch (lex_state) { |
1131 | #ifdef COMMENTARY | |
1132 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
1133 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
1134 | break; | |
1135 | #endif | |
1136 | ||
1137 | case LEX_KNOWNEXT: | |
1138 | nexttoke--; | |
1139 | yylval = nextval[nexttoke]; | |
463ee0b2 | 1140 | if (!nexttoke) { |
79072805 | 1141 | lex_state = lex_defer; |
463ee0b2 | 1142 | expect = lex_expect; |
a0d0e21e | 1143 | lex_defer = LEX_NORMAL; |
463ee0b2 | 1144 | } |
79072805 LW |
1145 | return(nexttype[nexttoke]); |
1146 | ||
1147 | case LEX_INTERPCASEMOD: | |
1148 | #ifdef DEBUGGING | |
1149 | if (bufptr != bufend && *bufptr != '\\') | |
463ee0b2 | 1150 | croak("panic: INTERPCASEMOD"); |
79072805 LW |
1151 | #endif |
1152 | if (bufptr == bufend || bufptr[1] == 'E') { | |
a0d0e21e | 1153 | char oldmod; |
79072805 | 1154 | if (lex_casemods) { |
a0d0e21e LW |
1155 | oldmod = lex_casestack[--lex_casemods]; |
1156 | lex_casestack[lex_casemods] = '\0'; | |
1157 | if (bufptr != bufend && strchr("LUQ", oldmod)) { | |
1158 | bufptr += 2; | |
1159 | lex_state = LEX_INTERPCONCAT; | |
1160 | } | |
79072805 LW |
1161 | return ')'; |
1162 | } | |
a0d0e21e LW |
1163 | if (bufptr != bufend) |
1164 | bufptr += 2; | |
1165 | lex_state = LEX_INTERPCONCAT; | |
79072805 LW |
1166 | return yylex(); |
1167 | } | |
1168 | else { | |
1169 | s = bufptr + 1; | |
1170 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
1171 | tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */ | |
a0d0e21e LW |
1172 | if (strchr("LU", *s) && |
1173 | (strchr(lex_casestack, 'L') || strchr(lex_casestack, 'U'))) | |
1174 | { | |
1175 | lex_casestack[--lex_casemods] = '\0'; | |
1176 | return ')'; | |
1177 | } | |
1178 | if (lex_casemods > 10) { | |
1179 | char* newlb = (char*)realloc(lex_casestack, lex_casemods + 2); | |
1180 | if (newlb != lex_casestack) { | |
1181 | SAVEFREEPV(newlb); | |
1182 | lex_casestack = newlb; | |
1183 | } | |
1184 | } | |
1185 | lex_casestack[lex_casemods++] = *s; | |
1186 | lex_casestack[lex_casemods] = '\0'; | |
79072805 LW |
1187 | lex_state = LEX_INTERPCONCAT; |
1188 | nextval[nexttoke].ival = 0; | |
1189 | force_next('('); | |
1190 | if (*s == 'l') | |
1191 | nextval[nexttoke].ival = OP_LCFIRST; | |
1192 | else if (*s == 'u') | |
1193 | nextval[nexttoke].ival = OP_UCFIRST; | |
1194 | else if (*s == 'L') | |
1195 | nextval[nexttoke].ival = OP_LC; | |
1196 | else if (*s == 'U') | |
1197 | nextval[nexttoke].ival = OP_UC; | |
a0d0e21e LW |
1198 | else if (*s == 'Q') |
1199 | nextval[nexttoke].ival = OP_QUOTEMETA; | |
79072805 | 1200 | else |
463ee0b2 | 1201 | croak("panic: yylex"); |
79072805 LW |
1202 | bufptr = s + 1; |
1203 | force_next(FUNC); | |
1204 | if (lex_starts) { | |
1205 | s = bufptr; | |
463ee0b2 | 1206 | lex_starts = 0; |
79072805 LW |
1207 | Aop(OP_CONCAT); |
1208 | } | |
1209 | else | |
1210 | return yylex(); | |
1211 | } | |
1212 | ||
1213 | case LEX_INTERPSTART: | |
1214 | if (bufptr == bufend) | |
1215 | return sublex_done(); | |
1216 | expect = XTERM; | |
1217 | lex_dojoin = (*bufptr == '@'); | |
1218 | lex_state = LEX_INTERPNORMAL; | |
1219 | if (lex_dojoin) { | |
1220 | nextval[nexttoke].ival = 0; | |
1221 | force_next(','); | |
a0d0e21e | 1222 | force_ident("\"", '$'); |
79072805 LW |
1223 | nextval[nexttoke].ival = 0; |
1224 | force_next('$'); | |
1225 | nextval[nexttoke].ival = 0; | |
1226 | force_next('('); | |
1227 | nextval[nexttoke].ival = OP_JOIN; /* emulate join($", ...) */ | |
1228 | force_next(FUNC); | |
1229 | } | |
1230 | if (lex_starts++) { | |
1231 | s = bufptr; | |
1232 | Aop(OP_CONCAT); | |
1233 | } | |
1234 | else | |
1235 | return yylex(); | |
1236 | break; | |
1237 | ||
1238 | case LEX_INTERPENDMAYBE: | |
1239 | if (intuit_more(bufptr)) { | |
1240 | lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
1241 | break; | |
1242 | } | |
1243 | /* FALL THROUGH */ | |
1244 | ||
1245 | case LEX_INTERPEND: | |
1246 | if (lex_dojoin) { | |
1247 | lex_dojoin = FALSE; | |
1248 | lex_state = LEX_INTERPCONCAT; | |
1249 | return ')'; | |
1250 | } | |
1251 | /* FALLTHROUGH */ | |
1252 | case LEX_INTERPCONCAT: | |
1253 | #ifdef DEBUGGING | |
1254 | if (lex_brackets) | |
463ee0b2 | 1255 | croak("panic: INTERPCONCAT"); |
79072805 LW |
1256 | #endif |
1257 | if (bufptr == bufend) | |
1258 | return sublex_done(); | |
1259 | ||
ed6116ce | 1260 | if (SvIVX(linestr) == '\'') { |
79072805 LW |
1261 | SV *sv = newSVsv(linestr); |
1262 | if (!lex_inpat) | |
1263 | sv = q(sv); | |
1264 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); | |
1265 | s = bufend; | |
1266 | } | |
1267 | else { | |
1268 | s = scan_const(bufptr); | |
1269 | if (*s == '\\') | |
1270 | lex_state = LEX_INTERPCASEMOD; | |
1271 | else | |
1272 | lex_state = LEX_INTERPSTART; | |
1273 | } | |
1274 | ||
1275 | if (s != bufptr) { | |
1276 | nextval[nexttoke] = yylval; | |
463ee0b2 | 1277 | expect = XTERM; |
79072805 LW |
1278 | force_next(THING); |
1279 | if (lex_starts++) | |
1280 | Aop(OP_CONCAT); | |
1281 | else { | |
1282 | bufptr = s; | |
1283 | return yylex(); | |
1284 | } | |
1285 | } | |
1286 | ||
1287 | return yylex(); | |
a0d0e21e LW |
1288 | case LEX_FORMLINE: |
1289 | lex_state = LEX_NORMAL; | |
1290 | s = scan_formline(bufptr); | |
1291 | if (!lex_formbrack) | |
1292 | goto rightbracket; | |
1293 | OPERATOR(';'); | |
79072805 LW |
1294 | } |
1295 | ||
1296 | s = bufptr; | |
a687059c LW |
1297 | oldoldbufptr = oldbufptr; |
1298 | oldbufptr = s; | |
79072805 | 1299 | DEBUG_p( { |
463ee0b2 | 1300 | fprintf(stderr,"### Tokener expecting %s at %s\n", exp_name[expect], s); |
79072805 | 1301 | } ) |
463ee0b2 LW |
1302 | |
1303 | retry: | |
378cc40b LW |
1304 | switch (*s) { |
1305 | default: | |
a0d0e21e | 1306 | warn("Unrecognized character \\%03o ignored", *s++ & 255); |
378cc40b | 1307 | goto retry; |
e929a76b LW |
1308 | case 4: |
1309 | case 26: | |
1310 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 1311 | case 0: |
463ee0b2 LW |
1312 | if (!rsfp) { |
1313 | if (lex_brackets) | |
1314 | yyerror("Missing right bracket"); | |
79072805 | 1315 | TOKEN(0); |
463ee0b2 | 1316 | } |
a687059c LW |
1317 | if (s++ < bufend) |
1318 | goto retry; /* ignore stray nulls */ | |
2f3197b3 | 1319 | last_uni = 0; |
79072805 | 1320 | last_lop = 0; |
a0d0e21e | 1321 | if (!in_eval && !preambled) { |
79072805 | 1322 | preambled = TRUE; |
a0d0e21e LW |
1323 | sv_setpv(linestr,incl_perldb()); |
1324 | if (autoboot_preamble) | |
1325 | sv_catpv(linestr, autoboot_preamble); | |
79072805 LW |
1326 | if (minus_n || minus_p) { |
1327 | sv_catpv(linestr, "LINE: while (<>) {"); | |
1328 | if (minus_l) | |
a0d0e21e | 1329 | sv_catpv(linestr,"chomp;"); |
2304df62 AD |
1330 | if (minus_a){ |
1331 | if (minus_F){ | |
1332 | char tmpbuf1[50]; | |
1333 | if ( splitstr[0] == '/' || | |
1334 | splitstr[0] == '\'' || | |
1335 | splitstr[0] == '"' ) | |
1336 | sprintf( tmpbuf1, "@F=split(%s);", splitstr ); | |
1337 | else | |
1338 | sprintf( tmpbuf1, "@F=split('%s');", splitstr ); | |
1339 | sv_catpv(linestr,tmpbuf1); | |
1340 | } | |
1341 | else | |
1342 | sv_catpv(linestr,"@F=split(' ');"); | |
1343 | } | |
79072805 | 1344 | } |
a0d0e21e | 1345 | sv_catpv(linestr, "\n"); |
463ee0b2 LW |
1346 | oldoldbufptr = oldbufptr = s = SvPVX(linestr); |
1347 | bufend = SvPVX(linestr) + SvCUR(linestr); | |
a0d0e21e LW |
1348 | if (perldb && curstash != debstash) { |
1349 | SV *sv = NEWSV(85,0); | |
1350 | ||
1351 | sv_upgrade(sv, SVt_PVMG); | |
1352 | sv_setsv(sv,linestr); | |
1353 | av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv); | |
1354 | } | |
79072805 | 1355 | goto retry; |
a687059c | 1356 | } |
e929a76b | 1357 | do { |
16d20bd9 | 1358 | if ((s = filter_gets(linestr, rsfp)) == Nullch) { |
e929a76b | 1359 | fake_eof: |
395c3793 | 1360 | if (rsfp) { |
a0d0e21e | 1361 | if (preprocess && !in_eval) |
79072805 | 1362 | (void)my_pclose(rsfp); |
de3bb511 | 1363 | else if ((FILE*)rsfp == stdin) |
395c3793 LW |
1364 | clearerr(stdin); |
1365 | else | |
1366 | (void)fclose(rsfp); | |
1367 | rsfp = Nullfp; | |
1368 | } | |
a0d0e21e | 1369 | if (!in_eval && (minus_n || minus_p)) { |
79072805 LW |
1370 | sv_setpv(linestr,minus_p ? ";}continue{print" : ""); |
1371 | sv_catpv(linestr,";}"); | |
463ee0b2 LW |
1372 | oldoldbufptr = oldbufptr = s = SvPVX(linestr); |
1373 | bufend = SvPVX(linestr) + SvCUR(linestr); | |
e929a76b LW |
1374 | minus_n = minus_p = 0; |
1375 | goto retry; | |
1376 | } | |
463ee0b2 | 1377 | oldoldbufptr = oldbufptr = s = SvPVX(linestr); |
79072805 LW |
1378 | sv_setpv(linestr,""); |
1379 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ | |
378cc40b | 1380 | } |
a0d0e21e LW |
1381 | if (doextract) { |
1382 | if (*s == '#' && s[1] == '!' && instr(s,"perl")) | |
1383 | doextract = FALSE; | |
1384 | ||
1385 | /* Incest with pod. */ | |
1386 | if (*s == '=' && strnEQ(s, "=cut", 4)) { | |
1387 | sv_setpv(linestr, ""); | |
1388 | oldoldbufptr = oldbufptr = s = SvPVX(linestr); | |
1389 | bufend = SvPVX(linestr) + SvCUR(linestr); | |
1390 | doextract = FALSE; | |
1391 | } | |
1392 | } | |
463ee0b2 | 1393 | incline(s); |
e929a76b | 1394 | } while (doextract); |
a687059c | 1395 | oldoldbufptr = oldbufptr = bufptr = s; |
8990e307 | 1396 | if (perldb && curstash != debstash) { |
79072805 | 1397 | SV *sv = NEWSV(85,0); |
a687059c | 1398 | |
93a17b20 | 1399 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
1400 | sv_setsv(sv,linestr); |
1401 | av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv); | |
a687059c | 1402 | } |
463ee0b2 | 1403 | bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 LW |
1404 | if (curcop->cop_line == 1) { |
1405 | while (s < bufend && isSPACE(*s)) | |
1406 | s++; | |
a0d0e21e | 1407 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 1408 | s++; |
a0d0e21e | 1409 | if (!in_eval && *s == '#' && s[1] == '!') { |
748a9306 LW |
1410 | d = instr(s,"perl -"); |
1411 | if (!d) | |
1412 | d = instr(s,"perl"); | |
1413 | if (!d && | |
1414 | !minus_c && | |
1415 | !instr(s,"indir") && | |
1416 | instr(origargv[0],"perl")) | |
1417 | { | |
9f68db38 LW |
1418 | char **newargv; |
1419 | char *cmd; | |
1420 | ||
1421 | s += 2; | |
1422 | if (*s == ' ') | |
1423 | s++; | |
1424 | cmd = s; | |
de3bb511 | 1425 | while (s < bufend && !isSPACE(*s)) |
9f68db38 LW |
1426 | s++; |
1427 | *s++ = '\0'; | |
de3bb511 | 1428 | while (s < bufend && isSPACE(*s)) |
9f68db38 LW |
1429 | s++; |
1430 | if (s < bufend) { | |
1431 | Newz(899,newargv,origargc+3,char*); | |
1432 | newargv[1] = s; | |
de3bb511 | 1433 | while (s < bufend && !isSPACE(*s)) |
9f68db38 LW |
1434 | s++; |
1435 | *s = '\0'; | |
1436 | Copy(origargv+1, newargv+2, origargc+1, char*); | |
1437 | } | |
1438 | else | |
1439 | newargv = origargv; | |
1440 | newargv[0] = cmd; | |
1441 | execv(cmd,newargv); | |
463ee0b2 | 1442 | croak("Can't exec %s", cmd); |
9f68db38 | 1443 | } |
748a9306 | 1444 | if (d) { |
a0d0e21e LW |
1445 | int oldpdb = perldb; |
1446 | int oldn = minus_n; | |
1447 | int oldp = minus_p; | |
748a9306 LW |
1448 | |
1449 | while (*d && !isSPACE(*d)) d++; | |
1450 | while (*d == ' ') d++; | |
1451 | ||
1452 | if (*d++ == '-') { | |
1453 | while (d = moreswitches(d)) ; | |
1454 | if (perldb && !oldpdb || | |
1455 | minus_n && !oldn || | |
1456 | minus_p && !oldp) | |
1457 | { | |
1458 | sv_setpv(linestr, ""); | |
1459 | oldoldbufptr = oldbufptr = s = SvPVX(linestr); | |
1460 | bufend = SvPVX(linestr) + SvCUR(linestr); | |
1461 | preambled = FALSE; | |
1462 | if (perldb) | |
1463 | (void)gv_fetchfile(origfilename); | |
1464 | goto retry; | |
1465 | } | |
a0d0e21e | 1466 | } |
79072805 | 1467 | } |
9f68db38 | 1468 | } |
79072805 | 1469 | } |
85e6fe83 | 1470 | if (lex_formbrack && lex_brackets <= lex_formbrack) { |
a0d0e21e LW |
1471 | bufptr = s; |
1472 | lex_state = LEX_FORMLINE; | |
1473 | return yylex(); | |
ae986130 | 1474 | } |
378cc40b | 1475 | goto retry; |
fe14fcc3 | 1476 | case ' ': case '\t': case '\f': case '\r': case 013: |
378cc40b LW |
1477 | s++; |
1478 | goto retry; | |
378cc40b | 1479 | case '#': |
e929a76b | 1480 | case '\n': |
79072805 | 1481 | if (lex_state != LEX_NORMAL || (in_eval && !rsfp)) { |
a687059c LW |
1482 | d = bufend; |
1483 | while (s < d && *s != '\n') | |
378cc40b | 1484 | s++; |
0f85fab0 | 1485 | if (s < d) |
378cc40b | 1486 | s++; |
463ee0b2 | 1487 | incline(s); |
85e6fe83 | 1488 | if (lex_formbrack && lex_brackets <= lex_formbrack) { |
a0d0e21e LW |
1489 | bufptr = s; |
1490 | lex_state = LEX_FORMLINE; | |
1491 | return yylex(); | |
a687059c | 1492 | } |
378cc40b | 1493 | } |
a687059c | 1494 | else { |
378cc40b | 1495 | *s = '\0'; |
a687059c LW |
1496 | bufend = s; |
1497 | } | |
378cc40b LW |
1498 | goto retry; |
1499 | case '-': | |
79072805 | 1500 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
378cc40b | 1501 | s++; |
748a9306 LW |
1502 | bufptr = s; |
1503 | tmp = *s++; | |
1504 | ||
1505 | while (s < bufend && (*s == ' ' || *s == '\t')) | |
1506 | s++; | |
1507 | ||
1508 | if (strnEQ(s,"=>",2)) { | |
1509 | if (dowarn) | |
1510 | warn("Ambiguous use of -%c => resolved to \"-%c\" =>", | |
1511 | tmp, tmp); | |
1512 | s = force_word(bufptr,WORD,FALSE,FALSE,FALSE); | |
1513 | OPERATOR('-'); /* unary minus */ | |
1514 | } | |
e334a159 | 1515 | last_uni = oldbufptr; |
a0d0e21e | 1516 | last_lop_op = OP_FTEREAD; /* good enough */ |
748a9306 | 1517 | switch (tmp) { |
79072805 LW |
1518 | case 'r': FTST(OP_FTEREAD); |
1519 | case 'w': FTST(OP_FTEWRITE); | |
1520 | case 'x': FTST(OP_FTEEXEC); | |
1521 | case 'o': FTST(OP_FTEOWNED); | |
1522 | case 'R': FTST(OP_FTRREAD); | |
1523 | case 'W': FTST(OP_FTRWRITE); | |
1524 | case 'X': FTST(OP_FTREXEC); | |
1525 | case 'O': FTST(OP_FTROWNED); | |
1526 | case 'e': FTST(OP_FTIS); | |
1527 | case 'z': FTST(OP_FTZERO); | |
1528 | case 's': FTST(OP_FTSIZE); | |
1529 | case 'f': FTST(OP_FTFILE); | |
1530 | case 'd': FTST(OP_FTDIR); | |
1531 | case 'l': FTST(OP_FTLINK); | |
1532 | case 'p': FTST(OP_FTPIPE); | |
1533 | case 'S': FTST(OP_FTSOCK); | |
1534 | case 'u': FTST(OP_FTSUID); | |
1535 | case 'g': FTST(OP_FTSGID); | |
1536 | case 'k': FTST(OP_FTSVTX); | |
1537 | case 'b': FTST(OP_FTBLK); | |
1538 | case 'c': FTST(OP_FTCHR); | |
1539 | case 't': FTST(OP_FTTTY); | |
1540 | case 'T': FTST(OP_FTTEXT); | |
1541 | case 'B': FTST(OP_FTBINARY); | |
85e6fe83 LW |
1542 | case 'M': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTMTIME); |
1543 | case 'A': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTATIME); | |
1544 | case 'C': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTCTIME); | |
378cc40b | 1545 | default: |
748a9306 | 1546 | croak("Unrecognized file test: -%c", tmp); |
378cc40b LW |
1547 | break; |
1548 | } | |
1549 | } | |
a687059c LW |
1550 | tmp = *s++; |
1551 | if (*s == tmp) { | |
1552 | s++; | |
79072805 LW |
1553 | if (expect == XOPERATOR) |
1554 | TERM(POSTDEC); | |
1555 | else | |
1556 | OPERATOR(PREDEC); | |
1557 | } | |
1558 | else if (*s == '>') { | |
1559 | s++; | |
1560 | s = skipspace(s); | |
1561 | if (isIDFIRST(*s)) { | |
a0d0e21e | 1562 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); |
463ee0b2 | 1563 | TOKEN(ARROW); |
79072805 | 1564 | } |
748a9306 LW |
1565 | else if (*s == '$') |
1566 | OPERATOR(ARROW); | |
463ee0b2 | 1567 | else |
748a9306 | 1568 | TERM(ARROW); |
a687059c | 1569 | } |
79072805 LW |
1570 | if (expect == XOPERATOR) |
1571 | Aop(OP_SUBTRACT); | |
1572 | else { | |
2f3197b3 LW |
1573 | if (isSPACE(*s) || !isSPACE(*bufptr)) |
1574 | check_uni(); | |
79072805 | 1575 | OPERATOR('-'); /* unary minus */ |
2f3197b3 | 1576 | } |
79072805 | 1577 | |
378cc40b | 1578 | case '+': |
a687059c LW |
1579 | tmp = *s++; |
1580 | if (*s == tmp) { | |
378cc40b | 1581 | s++; |
79072805 LW |
1582 | if (expect == XOPERATOR) |
1583 | TERM(POSTINC); | |
1584 | else | |
1585 | OPERATOR(PREINC); | |
378cc40b | 1586 | } |
79072805 LW |
1587 | if (expect == XOPERATOR) |
1588 | Aop(OP_ADD); | |
1589 | else { | |
2f3197b3 LW |
1590 | if (isSPACE(*s) || !isSPACE(*bufptr)) |
1591 | check_uni(); | |
a687059c | 1592 | OPERATOR('+'); |
2f3197b3 | 1593 | } |
a687059c | 1594 | |
378cc40b | 1595 | case '*': |
79072805 LW |
1596 | if (expect != XOPERATOR) { |
1597 | s = scan_ident(s, bufend, tokenbuf, TRUE); | |
463ee0b2 | 1598 | expect = XOPERATOR; |
a0d0e21e LW |
1599 | force_ident(tokenbuf, '*'); |
1600 | if (!*tokenbuf) | |
1601 | PREREF('*'); | |
79072805 | 1602 | TERM('*'); |
a687059c | 1603 | } |
79072805 LW |
1604 | s++; |
1605 | if (*s == '*') { | |
a687059c | 1606 | s++; |
79072805 | 1607 | PWop(OP_POW); |
a687059c | 1608 | } |
79072805 LW |
1609 | Mop(OP_MULTIPLY); |
1610 | ||
378cc40b | 1611 | case '%': |
79072805 | 1612 | if (expect != XOPERATOR) { |
93a17b20 LW |
1613 | s = scan_ident(s, bufend, tokenbuf + 1, TRUE); |
1614 | if (tokenbuf[1]) { | |
463ee0b2 | 1615 | expect = XOPERATOR; |
93a17b20 LW |
1616 | tokenbuf[0] = '%'; |
1617 | if (in_my) { | |
463ee0b2 | 1618 | if (strchr(tokenbuf,':')) |
748a9306 | 1619 | croak(no_myglob,tokenbuf); |
ed6116ce | 1620 | nextval[nexttoke].opval = newOP(OP_PADANY, 0); |
93a17b20 LW |
1621 | nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf); |
1622 | force_next(PRIVATEREF); | |
1623 | TERM('%'); | |
1624 | } | |
463ee0b2 | 1625 | if (!strchr(tokenbuf,':')) { |
93a17b20 | 1626 | if (tmp = pad_findmy(tokenbuf)) { |
ed6116ce | 1627 | nextval[nexttoke].opval = newOP(OP_PADANY, 0); |
93a17b20 LW |
1628 | nextval[nexttoke].opval->op_targ = tmp; |
1629 | force_next(PRIVATEREF); | |
1630 | TERM('%'); | |
1631 | } | |
1632 | } | |
a0d0e21e | 1633 | force_ident(tokenbuf + 1, *tokenbuf); |
93a17b20 LW |
1634 | } |
1635 | else | |
1636 | PREREF('%'); | |
79072805 | 1637 | TERM('%'); |
a687059c | 1638 | } |
79072805 LW |
1639 | ++s; |
1640 | Mop(OP_MODULO); | |
a687059c | 1641 | |
378cc40b | 1642 | case '^': |
79072805 | 1643 | s++; |
a0d0e21e | 1644 | BOop(OP_BIT_XOR); |
79072805 LW |
1645 | case '[': |
1646 | lex_brackets++; | |
1647 | /* FALL THROUGH */ | |
378cc40b | 1648 | case '~': |
378cc40b | 1649 | case ',': |
378cc40b LW |
1650 | tmp = *s++; |
1651 | OPERATOR(tmp); | |
a0d0e21e LW |
1652 | case ':': |
1653 | if (s[1] == ':') { | |
1654 | len = 0; | |
1655 | goto just_a_word; | |
1656 | } | |
1657 | s++; | |
1658 | OPERATOR(':'); | |
8990e307 LW |
1659 | case '(': |
1660 | s++; | |
a0d0e21e | 1661 | if (last_lop == oldoldbufptr || last_uni == oldoldbufptr) |
8990e307 | 1662 | oldbufptr = oldoldbufptr; /* allow print(STDOUT 123) */ |
a0d0e21e LW |
1663 | else |
1664 | expect = XTERM; | |
1665 | TOKEN('('); | |
378cc40b | 1666 | case ';': |
79072805 LW |
1667 | if (curcop->cop_line < copline) |
1668 | copline = curcop->cop_line; | |
378cc40b LW |
1669 | tmp = *s++; |
1670 | OPERATOR(tmp); | |
1671 | case ')': | |
378cc40b | 1672 | tmp = *s++; |
16d20bd9 AD |
1673 | s = skipspace(s); |
1674 | if (*s == '{') | |
1675 | PREBLOCK(tmp); | |
378cc40b | 1676 | TERM(tmp); |
79072805 LW |
1677 | case ']': |
1678 | s++; | |
463ee0b2 LW |
1679 | if (lex_brackets <= 0) |
1680 | yyerror("Unmatched right bracket"); | |
1681 | else | |
1682 | --lex_brackets; | |
79072805 | 1683 | if (lex_state == LEX_INTERPNORMAL) { |
463ee0b2 | 1684 | if (lex_brackets == 0) { |
a0d0e21e | 1685 | if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>')) |
79072805 LW |
1686 | lex_state = LEX_INTERPEND; |
1687 | } | |
1688 | } | |
1689 | TOKEN(']'); | |
1690 | case '{': | |
1691 | leftbracket: | |
79072805 | 1692 | s++; |
8990e307 LW |
1693 | if (lex_brackets > 100) { |
1694 | char* newlb = (char*)realloc(lex_brackstack, lex_brackets + 1); | |
1695 | if (newlb != lex_brackstack) { | |
1696 | SAVEFREEPV(newlb); | |
1697 | lex_brackstack = newlb; | |
1698 | } | |
1699 | } | |
a0d0e21e LW |
1700 | switch (expect) { |
1701 | case XTERM: | |
1702 | if (lex_formbrack) { | |
1703 | s--; | |
1704 | PRETERMBLOCK(DO); | |
1705 | } | |
1706 | if (oldoldbufptr == last_lop) | |
1707 | lex_brackstack[lex_brackets++] = XTERM; | |
1708 | else | |
1709 | lex_brackstack[lex_brackets++] = XOPERATOR; | |
79072805 | 1710 | OPERATOR(HASHBRACK); |
a0d0e21e | 1711 | break; |
a0d0e21e | 1712 | case XOPERATOR: |
748a9306 LW |
1713 | while (s < bufend && (*s == ' ' || *s == '\t')) |
1714 | s++; | |
1715 | if (s < bufend && isALPHA(*s)) { | |
1716 | d = scan_word(s, tokenbuf, FALSE, &len); | |
1717 | while (d < bufend && (*d == ' ' || *d == '\t')) | |
1718 | d++; | |
1719 | if (*d == '}') { | |
1720 | if (dowarn && | |
1721 | (keyword(tokenbuf, len) || | |
1722 | perl_get_cv(tokenbuf, FALSE) )) | |
1723 | warn("Ambiguous use of {%s} resolved to {\"%s\"}", | |
1724 | tokenbuf, tokenbuf); | |
1725 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
1726 | } | |
1727 | } | |
1728 | /* FALL THROUGH */ | |
1729 | case XBLOCK: | |
a0d0e21e | 1730 | lex_brackstack[lex_brackets++] = XSTATE; |
2304df62 | 1731 | expect = XSTATE; |
a0d0e21e LW |
1732 | break; |
1733 | case XTERMBLOCK: | |
1734 | lex_brackstack[lex_brackets++] = XOPERATOR; | |
1735 | expect = XSTATE; | |
1736 | break; | |
1737 | default: { | |
1738 | char *t; | |
1739 | if (oldoldbufptr == last_lop) | |
1740 | lex_brackstack[lex_brackets++] = XTERM; | |
1741 | else | |
1742 | lex_brackstack[lex_brackets++] = XOPERATOR; | |
1743 | s = skipspace(s); | |
1744 | if (*s == '}') | |
1745 | OPERATOR(HASHBRACK); | |
1746 | if (isALPHA(*s)) { | |
1747 | for (t = s; t < bufend && isALPHA(*t); t++) ; | |
1748 | } | |
1749 | else if (*s == '\'' || *s == '"') { | |
1750 | t = strchr(s+1,*s); | |
1751 | if (!t++) | |
1752 | t = s; | |
1753 | } | |
1754 | else | |
1755 | t = s; | |
1756 | while (t < bufend && isSPACE(*t)) | |
1757 | t++; | |
1758 | if ((*t == ',' && !isLOWER(*s)) || (*t == '=' && t[1] == '>')) | |
1759 | OPERATOR(HASHBRACK); | |
1760 | if (expect == XREF) | |
1761 | expect = XTERM; | |
1762 | else { | |
1763 | lex_brackstack[lex_brackets-1] = XSTATE; | |
1764 | expect = XSTATE; | |
1765 | } | |
8990e307 | 1766 | } |
a0d0e21e | 1767 | break; |
463ee0b2 | 1768 | } |
79072805 LW |
1769 | yylval.ival = curcop->cop_line; |
1770 | if (isSPACE(*s) || *s == '#') | |
1771 | copline = NOLINE; /* invalidate current command line number */ | |
79072805 | 1772 | TOKEN('{'); |
378cc40b | 1773 | case '}': |
79072805 LW |
1774 | rightbracket: |
1775 | s++; | |
463ee0b2 LW |
1776 | if (lex_brackets <= 0) |
1777 | yyerror("Unmatched right bracket"); | |
1778 | else | |
1779 | expect = (expectation)lex_brackstack[--lex_brackets]; | |
85e6fe83 LW |
1780 | if (lex_brackets < lex_formbrack) |
1781 | lex_formbrack = 0; | |
79072805 | 1782 | if (lex_state == LEX_INTERPNORMAL) { |
463ee0b2 | 1783 | if (lex_brackets == 0) { |
79072805 LW |
1784 | if (lex_fakebrack) { |
1785 | lex_state = LEX_INTERPEND; | |
1786 | bufptr = s; | |
1787 | return yylex(); /* ignore fake brackets */ | |
1788 | } | |
a0d0e21e | 1789 | if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>')) |
79072805 LW |
1790 | lex_state = LEX_INTERPEND; |
1791 | } | |
1792 | } | |
748a9306 LW |
1793 | if (lex_brackets < lex_fakebrack) { |
1794 | bufptr = s; | |
1795 | lex_fakebrack = 0; | |
1796 | return yylex(); /* ignore fake brackets */ | |
1797 | } | |
79072805 LW |
1798 | force_next('}'); |
1799 | TOKEN(';'); | |
378cc40b LW |
1800 | case '&': |
1801 | s++; | |
1802 | tmp = *s++; | |
1803 | if (tmp == '&') | |
a0d0e21e | 1804 | AOPERATOR(ANDAND); |
378cc40b | 1805 | s--; |
463ee0b2 | 1806 | if (expect == XOPERATOR) { |
a0d0e21e | 1807 | if (isALPHA(*s) && bufptr == SvPVX(linestr)) { |
463ee0b2 LW |
1808 | curcop->cop_line--; |
1809 | warn(warn_nosemi); | |
1810 | curcop->cop_line++; | |
1811 | } | |
79072805 | 1812 | BAop(OP_BIT_AND); |
463ee0b2 | 1813 | } |
79072805 LW |
1814 | |
1815 | s = scan_ident(s-1, bufend, tokenbuf, TRUE); | |
463ee0b2 LW |
1816 | if (*tokenbuf) { |
1817 | expect = XOPERATOR; | |
a0d0e21e | 1818 | force_ident(tokenbuf, '&'); |
463ee0b2 | 1819 | } |
79072805 LW |
1820 | else |
1821 | PREREF('&'); | |
1822 | TERM('&'); | |
1823 | ||
378cc40b LW |
1824 | case '|': |
1825 | s++; | |
1826 | tmp = *s++; | |
1827 | if (tmp == '|') | |
a0d0e21e | 1828 | AOPERATOR(OROR); |
378cc40b | 1829 | s--; |
79072805 | 1830 | BOop(OP_BIT_OR); |
378cc40b LW |
1831 | case '=': |
1832 | s++; | |
1833 | tmp = *s++; | |
1834 | if (tmp == '=') | |
79072805 LW |
1835 | Eop(OP_EQ); |
1836 | if (tmp == '>') | |
1837 | OPERATOR(','); | |
378cc40b | 1838 | if (tmp == '~') |
79072805 | 1839 | PMop(OP_MATCH); |
463ee0b2 LW |
1840 | if (dowarn && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp)) |
1841 | warn("Reversed %c= operator",tmp); | |
378cc40b | 1842 | s--; |
748a9306 LW |
1843 | if (expect == XSTATE && isALPHA(tmp) && |
1844 | (s == SvPVX(linestr)+1 || s[-2] == '\n') ) | |
1845 | { | |
a0d0e21e LW |
1846 | s = bufend; |
1847 | doextract = TRUE; | |
1848 | goto retry; | |
1849 | } | |
1850 | if (lex_brackets < lex_formbrack) { | |
1851 | char *t; | |
1852 | for (t = s; *t == ' ' || *t == '\t'; t++) ; | |
1853 | if (*t == '\n' || *t == '#') { | |
1854 | s--; | |
1855 | expect = XBLOCK; | |
1856 | goto leftbracket; | |
1857 | } | |
79072805 | 1858 | } |
a0d0e21e LW |
1859 | yylval.ival = 0; |
1860 | OPERATOR(ASSIGNOP); | |
378cc40b LW |
1861 | case '!': |
1862 | s++; | |
1863 | tmp = *s++; | |
1864 | if (tmp == '=') | |
79072805 | 1865 | Eop(OP_NE); |
378cc40b | 1866 | if (tmp == '~') |
79072805 | 1867 | PMop(OP_NOT); |
378cc40b LW |
1868 | s--; |
1869 | OPERATOR('!'); | |
1870 | case '<': | |
79072805 | 1871 | if (expect != XOPERATOR) { |
93a17b20 | 1872 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 1873 | check_uni(); |
79072805 LW |
1874 | if (s[1] == '<') |
1875 | s = scan_heredoc(s); | |
1876 | else | |
1877 | s = scan_inputsymbol(s); | |
1878 | TERM(sublex_start()); | |
378cc40b LW |
1879 | } |
1880 | s++; | |
1881 | tmp = *s++; | |
1882 | if (tmp == '<') | |
79072805 | 1883 | SHop(OP_LEFT_SHIFT); |
395c3793 LW |
1884 | if (tmp == '=') { |
1885 | tmp = *s++; | |
1886 | if (tmp == '>') | |
79072805 | 1887 | Eop(OP_NCMP); |
395c3793 | 1888 | s--; |
79072805 | 1889 | Rop(OP_LE); |
395c3793 | 1890 | } |
378cc40b | 1891 | s--; |
79072805 | 1892 | Rop(OP_LT); |
378cc40b LW |
1893 | case '>': |
1894 | s++; | |
1895 | tmp = *s++; | |
1896 | if (tmp == '>') | |
79072805 | 1897 | SHop(OP_RIGHT_SHIFT); |
378cc40b | 1898 | if (tmp == '=') |
79072805 | 1899 | Rop(OP_GE); |
378cc40b | 1900 | s--; |
79072805 | 1901 | Rop(OP_GT); |
378cc40b LW |
1902 | |
1903 | case '$': | |
748a9306 | 1904 | if (s[1] == '#' && (isALPHA(s[2]) || strchr("_{$:", s[2]))) { |
a0d0e21e | 1905 | s = scan_ident(s+1, bufend, tokenbuf+1, FALSE); |
8990e307 | 1906 | if (expect == XOPERATOR) { |
a0d0e21e LW |
1907 | if (lex_formbrack && lex_brackets == lex_formbrack) { |
1908 | expect = XTERM; | |
1909 | depcom(); | |
1910 | return ','; /* grandfather non-comma-format format */ | |
1911 | } | |
8990e307 LW |
1912 | else |
1913 | no_op("Array length",s); | |
1914 | } | |
a0d0e21e LW |
1915 | else if (!tokenbuf[1]) |
1916 | PREREF(DOLSHARP); | |
1917 | if (!strchr(tokenbuf+1,':')) { | |
1918 | tokenbuf[0] = '@'; | |
1919 | if (tmp = pad_findmy(tokenbuf)) { | |
1920 | nextval[nexttoke].opval = newOP(OP_PADANY, 0); | |
1921 | nextval[nexttoke].opval->op_targ = tmp; | |
1922 | expect = XOPERATOR; | |
1923 | force_next(PRIVATEREF); | |
1924 | TOKEN(DOLSHARP); | |
1925 | } | |
1926 | } | |
463ee0b2 | 1927 | expect = XOPERATOR; |
a0d0e21e | 1928 | force_ident(tokenbuf+1, *tokenbuf); |
463ee0b2 | 1929 | TOKEN(DOLSHARP); |
79072805 | 1930 | } |
93a17b20 | 1931 | s = scan_ident(s, bufend, tokenbuf+1, FALSE); |
8990e307 | 1932 | if (expect == XOPERATOR) { |
a0d0e21e LW |
1933 | if (lex_formbrack && lex_brackets == lex_formbrack) { |
1934 | expect = XTERM; | |
1935 | depcom(); | |
1936 | return ','; /* grandfather non-comma-format format */ | |
1937 | } | |
8990e307 LW |
1938 | else |
1939 | no_op("Scalar",s); | |
1940 | } | |
93a17b20 | 1941 | if (tokenbuf[1]) { |
a0d0e21e LW |
1942 | expectation oldexpect = expect; |
1943 | ||
1944 | /* This kludge not intended to be bulletproof. */ | |
1945 | if (tokenbuf[1] == '[' && !tokenbuf[2]) { | |
748a9306 | 1946 | yylval.opval = newSVOP(OP_CONST, 0, |
a0d0e21e | 1947 | newSViv((IV)compiling.cop_arybase)); |
748a9306 | 1948 | yylval.opval->op_private = OPpCONST_ARYBASE; |
a0d0e21e LW |
1949 | TERM(THING); |
1950 | } | |
93a17b20 | 1951 | tokenbuf[0] = '$'; |
a0d0e21e | 1952 | if (dowarn) { |
93a17b20 | 1953 | char *t; |
a0d0e21e LW |
1954 | if (*s == '[' && oldexpect != XREF) { |
1955 | for (t = s+1; isSPACE(*t) || isALNUM(*t) || *t == '$'; t++) ; | |
1956 | if (*t++ == ',') { | |
1957 | bufptr = skipspace(bufptr); | |
1958 | while (t < bufend && *t != ']') t++; | |
1959 | warn("Multidimensional syntax %.*s not supported", | |
1960 | t-bufptr+1, bufptr); | |
1961 | } | |
1962 | } | |
1963 | if (*s == '{' && strEQ(tokenbuf, "$SIG") && | |
1964 | (t = strchr(s,'}')) && (t = strchr(t,'='))) { | |
1965 | char tmpbuf[1024]; | |
a0d0e21e LW |
1966 | STRLEN len; |
1967 | for (t++; isSPACE(*t); t++) ; | |
748a9306 LW |
1968 | if (isIDFIRST(*t)) { |
1969 | t = scan_word(t, tmpbuf, TRUE, &len); | |
1970 | if (*t != '(' && perl_get_cv(tmpbuf, FALSE)) | |
1971 | warn("You need to quote \"%s\"", tmpbuf); | |
1972 | } | |
93a17b20 LW |
1973 | } |
1974 | } | |
463ee0b2 LW |
1975 | expect = XOPERATOR; |
1976 | if (lex_state == LEX_NORMAL && isSPACE(*s)) { | |
1977 | bool islop = (last_lop == oldoldbufptr); | |
1978 | s = skipspace(s); | |
a0d0e21e | 1979 | if (!islop || last_lop_op == OP_GREPSTART) |
463ee0b2 | 1980 | expect = XOPERATOR; |
8990e307 LW |
1981 | else if (strchr("$@\"'`q", *s)) |
1982 | expect = XTERM; /* e.g. print $fh "foo" */ | |
463ee0b2 LW |
1983 | else if (strchr("&*<%", *s) && isIDFIRST(s[1])) |
1984 | expect = XTERM; /* e.g. print $fh &sub */ | |
1985 | else if (isDIGIT(*s)) | |
1986 | expect = XTERM; /* e.g. print $fh 3 */ | |
1987 | else if (*s == '.' && isDIGIT(s[1])) | |
1988 | expect = XTERM; /* e.g. print $fh .3 */ | |
1989 | else if (strchr("/?-+", *s) && !isSPACE(s[1])) | |
1990 | expect = XTERM; /* e.g. print $fh -1 */ | |
1991 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2])) | |
1992 | expect = XTERM; /* print $fh <<"EOF" */ | |
1993 | } | |
93a17b20 | 1994 | if (in_my) { |
463ee0b2 | 1995 | if (strchr(tokenbuf,':')) |
748a9306 | 1996 | croak(no_myglob,tokenbuf); |
ed6116ce | 1997 | nextval[nexttoke].opval = newOP(OP_PADANY, 0); |
93a17b20 LW |
1998 | nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf); |
1999 | force_next(PRIVATEREF); | |
2000 | } | |
463ee0b2 | 2001 | else if (!strchr(tokenbuf,':')) { |
748a9306 | 2002 | if (oldexpect != XREF || oldoldbufptr == last_lop) { |
a0d0e21e LW |
2003 | if (*s == '[') |
2004 | tokenbuf[0] = '@'; | |
2005 | else if (*s == '{') | |
2006 | tokenbuf[0] = '%'; | |
2007 | } | |
93a17b20 | 2008 | if (tmp = pad_findmy(tokenbuf)) { |
ed6116ce | 2009 | nextval[nexttoke].opval = newOP(OP_PADANY, 0); |
93a17b20 LW |
2010 | nextval[nexttoke].opval->op_targ = tmp; |
2011 | force_next(PRIVATEREF); | |
2012 | } | |
748a9306 LW |
2013 | else { |
2014 | if ((tainting || !euid) && | |
2015 | !isLOWER(tokenbuf[1]) && | |
2016 | (isDIGIT(tokenbuf[1]) || | |
2017 | strchr("&`'+", tokenbuf[1]) || | |
2018 | instr(tokenbuf,"MATCH") )) | |
2019 | hints |= HINT_BLOCK_SCOPE; /* Can't optimize block out*/ | |
a0d0e21e | 2020 | force_ident(tokenbuf+1, *tokenbuf); |
748a9306 | 2021 | } |
93a17b20 LW |
2022 | } |
2023 | else | |
a0d0e21e | 2024 | force_ident(tokenbuf+1, *tokenbuf); |
93a17b20 | 2025 | } |
463ee0b2 LW |
2026 | else { |
2027 | if (s == bufend) | |
2028 | yyerror("Final $ should be \\$ or $name"); | |
79072805 | 2029 | PREREF('$'); |
2f3197b3 | 2030 | } |
79072805 | 2031 | TOKEN('$'); |
378cc40b LW |
2032 | |
2033 | case '@': | |
93a17b20 | 2034 | s = scan_ident(s, bufend, tokenbuf+1, FALSE); |
8990e307 LW |
2035 | if (expect == XOPERATOR) |
2036 | no_op("Array",s); | |
93a17b20 | 2037 | if (tokenbuf[1]) { |
a0d0e21e LW |
2038 | GV* gv; |
2039 | ||
93a17b20 | 2040 | tokenbuf[0] = '@'; |
463ee0b2 | 2041 | expect = XOPERATOR; |
93a17b20 | 2042 | if (in_my) { |
463ee0b2 | 2043 | if (strchr(tokenbuf,':')) |
748a9306 | 2044 | croak(no_myglob,tokenbuf); |
ed6116ce | 2045 | nextval[nexttoke].opval = newOP(OP_PADANY, 0); |
93a17b20 LW |
2046 | nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf); |
2047 | force_next(PRIVATEREF); | |
2048 | TERM('@'); | |
2049 | } | |
463ee0b2 | 2050 | else if (!strchr(tokenbuf,':')) { |
ed6116ce | 2051 | if (*s == '{') |
93a17b20 | 2052 | tokenbuf[0] = '%'; |
93a17b20 | 2053 | if (tmp = pad_findmy(tokenbuf)) { |
ed6116ce | 2054 | nextval[nexttoke].opval = newOP(OP_PADANY, 0); |
93a17b20 LW |
2055 | nextval[nexttoke].opval->op_targ = tmp; |
2056 | force_next(PRIVATEREF); | |
2057 | TERM('@'); | |
2058 | } | |
2059 | } | |
a0d0e21e LW |
2060 | |
2061 | /* Force them to make up their mind on "@foo". */ | |
2062 | if (lex_state != LEX_NORMAL && | |
2063 | ( !(gv = gv_fetchpv(tokenbuf+1, FALSE, SVt_PVAV)) || | |
2064 | (*tokenbuf == '@' | |
2065 | ? !GvAV(gv) | |
2066 | : !GvHV(gv) ))) | |
2067 | { | |
2068 | char tmpbuf[1024]; | |
2069 | sprintf(tmpbuf, "Literal @%s now requires backslash",tokenbuf+1); | |
2070 | yyerror(tmpbuf); | |
2071 | } | |
2072 | ||
2073 | /* Warn about @ where they meant $. */ | |
2074 | if (dowarn) { | |
2075 | if (*s == '[' || *s == '{') { | |
2076 | char *t = s + 1; | |
2077 | while (*t && (isALNUM(*t) || strchr(" \t$#+-'\"", *t))) | |
2078 | t++; | |
2079 | if (*t == '}' || *t == ']') { | |
2080 | t++; | |
2081 | bufptr = skipspace(bufptr); | |
2082 | warn("Scalar value %.*s better written as $%.*s", | |
2083 | t-bufptr, bufptr, t-bufptr-1, bufptr+1); | |
2084 | } | |
93a17b20 LW |
2085 | } |
2086 | } | |
a0d0e21e | 2087 | force_ident(tokenbuf+1, *tokenbuf); |
93a17b20 | 2088 | } |
463ee0b2 LW |
2089 | else { |
2090 | if (s == bufend) | |
2091 | yyerror("Final @ should be \\@ or @name"); | |
79072805 | 2092 | PREREF('@'); |
463ee0b2 | 2093 | } |
79072805 | 2094 | TERM('@'); |
378cc40b LW |
2095 | |
2096 | case '/': /* may either be division or pattern */ | |
2097 | case '?': /* may either be conditional or pattern */ | |
79072805 | 2098 | if (expect != XOPERATOR) { |
2f3197b3 | 2099 | check_uni(); |
79072805 LW |
2100 | s = scan_pat(s); |
2101 | TERM(sublex_start()); | |
378cc40b LW |
2102 | } |
2103 | tmp = *s++; | |
a687059c | 2104 | if (tmp == '/') |
79072805 | 2105 | Mop(OP_DIVIDE); |
378cc40b LW |
2106 | OPERATOR(tmp); |
2107 | ||
2108 | case '.': | |
748a9306 LW |
2109 | if (lex_formbrack && lex_brackets == lex_formbrack && s[1] == '\n' && |
2110 | (s == SvPVX(linestr) || s[-1] == '\n') ) { | |
85e6fe83 | 2111 | lex_formbrack = 0; |
8990e307 | 2112 | expect = XSTATE; |
79072805 LW |
2113 | goto rightbracket; |
2114 | } | |
2115 | if (expect == XOPERATOR || !isDIGIT(s[1])) { | |
378cc40b | 2116 | tmp = *s++; |
a687059c LW |
2117 | if (*s == tmp) { |
2118 | s++; | |
2f3197b3 LW |
2119 | if (*s == tmp) { |
2120 | s++; | |
79072805 | 2121 | yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
2122 | } |
2123 | else | |
79072805 | 2124 | yylval.ival = 0; |
378cc40b | 2125 | OPERATOR(DOTDOT); |
a687059c | 2126 | } |
79072805 | 2127 | if (expect != XOPERATOR) |
2f3197b3 | 2128 | check_uni(); |
79072805 | 2129 | Aop(OP_CONCAT); |
378cc40b LW |
2130 | } |
2131 | /* FALL THROUGH */ | |
2132 | case '0': case '1': case '2': case '3': case '4': | |
2133 | case '5': case '6': case '7': case '8': case '9': | |
79072805 | 2134 | s = scan_num(s); |
8990e307 LW |
2135 | if (expect == XOPERATOR) |
2136 | no_op("Number",s); | |
79072805 LW |
2137 | TERM(THING); |
2138 | ||
2139 | case '\'': | |
8990e307 | 2140 | s = scan_str(s); |
463ee0b2 | 2141 | if (expect == XOPERATOR) { |
a0d0e21e LW |
2142 | if (lex_formbrack && lex_brackets == lex_formbrack) { |
2143 | expect = XTERM; | |
2144 | depcom(); | |
2145 | return ','; /* grandfather non-comma-format format */ | |
2146 | } | |
463ee0b2 | 2147 | else |
8990e307 | 2148 | no_op("String",s); |
463ee0b2 | 2149 | } |
79072805 | 2150 | if (!s) |
85e6fe83 | 2151 | missingterm((char*)0); |
79072805 LW |
2152 | yylval.ival = OP_CONST; |
2153 | TERM(sublex_start()); | |
2154 | ||
2155 | case '"': | |
8990e307 | 2156 | s = scan_str(s); |
463ee0b2 | 2157 | if (expect == XOPERATOR) { |
a0d0e21e LW |
2158 | if (lex_formbrack && lex_brackets == lex_formbrack) { |
2159 | expect = XTERM; | |
2160 | depcom(); | |
2161 | return ','; /* grandfather non-comma-format format */ | |
2162 | } | |
463ee0b2 | 2163 | else |
8990e307 | 2164 | no_op("String",s); |
463ee0b2 | 2165 | } |
79072805 | 2166 | if (!s) |
85e6fe83 | 2167 | missingterm((char*)0); |
a0d0e21e | 2168 | yylval.ival = OP_STRINGIFY; |
79072805 LW |
2169 | TERM(sublex_start()); |
2170 | ||
2171 | case '`': | |
2172 | s = scan_str(s); | |
8990e307 LW |
2173 | if (expect == XOPERATOR) |
2174 | no_op("Backticks",s); | |
79072805 | 2175 | if (!s) |
85e6fe83 | 2176 | missingterm((char*)0); |
79072805 LW |
2177 | yylval.ival = OP_BACKTICK; |
2178 | set_csh(); | |
2179 | TERM(sublex_start()); | |
2180 | ||
2181 | case '\\': | |
2182 | s++; | |
748a9306 LW |
2183 | if (dowarn && lex_inwhat && isDIGIT(*s)) |
2184 | warn("Can't use \\%c to mean $%c in expression", *s, *s); | |
8990e307 LW |
2185 | if (expect == XOPERATOR) |
2186 | no_op("Backslash",s); | |
79072805 LW |
2187 | OPERATOR(REFGEN); |
2188 | ||
2189 | case 'x': | |
2190 | if (isDIGIT(s[1]) && expect == XOPERATOR) { | |
2191 | s++; | |
2192 | Mop(OP_REPEAT); | |
2f3197b3 | 2193 | } |
79072805 LW |
2194 | goto keylookup; |
2195 | ||
378cc40b | 2196 | case '_': |
79072805 LW |
2197 | case 'a': case 'A': |
2198 | case 'b': case 'B': | |
2199 | case 'c': case 'C': | |
2200 | case 'd': case 'D': | |
2201 | case 'e': case 'E': | |
2202 | case 'f': case 'F': | |
2203 | case 'g': case 'G': | |
2204 | case 'h': case 'H': | |
2205 | case 'i': case 'I': | |
2206 | case 'j': case 'J': | |
2207 | case 'k': case 'K': | |
2208 | case 'l': case 'L': | |
2209 | case 'm': case 'M': | |
2210 | case 'n': case 'N': | |
2211 | case 'o': case 'O': | |
2212 | case 'p': case 'P': | |
2213 | case 'q': case 'Q': | |
2214 | case 'r': case 'R': | |
2215 | case 's': case 'S': | |
2216 | case 't': case 'T': | |
2217 | case 'u': case 'U': | |
2218 | case 'v': case 'V': | |
2219 | case 'w': case 'W': | |
2220 | case 'X': | |
2221 | case 'y': case 'Y': | |
2222 | case 'z': case 'Z': | |
2223 | ||
2224 | keylookup: | |
748a9306 | 2225 | bufptr = s; |
463ee0b2 LW |
2226 | s = scan_word(s, tokenbuf, FALSE, &len); |
2227 | ||
a0d0e21e | 2228 | tmp = keyword(tokenbuf, len); |
748a9306 LW |
2229 | |
2230 | /* Is this a word before a => operator? */ | |
2231 | d = s; | |
2232 | while (d < bufend && (*d == ' ' || *d == '\t')) | |
2233 | d++; /* no comments skipped here, or s### is misparsed */ | |
2234 | if (strnEQ(d,"=>",2)) { | |
2235 | CLINE; | |
2236 | if (dowarn && (tmp || perl_get_cv(tokenbuf, FALSE))) | |
2237 | warn("Ambiguous use of %s => resolved to \"%s\" =>", | |
2238 | tokenbuf, tokenbuf); | |
2239 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); | |
2240 | yylval.opval->op_private = OPpCONST_BARE; | |
2241 | TERM(WORD); | |
2242 | } | |
2243 | ||
a0d0e21e LW |
2244 | if (tmp < 0) { /* second-class keyword? */ |
2245 | GV* gv; | |
2246 | if (expect != XOPERATOR && | |
2247 | (*s != ':' || s[1] != ':') && | |
2248 | (gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV)) && | |
2249 | (GvFLAGS(gv) & GVf_IMPORTED) && | |
2250 | GvCV(gv)) | |
2251 | { | |
2252 | tmp = 0; | |
2253 | } | |
2254 | else | |
2255 | tmp = -tmp; | |
2256 | } | |
2257 | ||
2258 | reserved_word: | |
2259 | switch (tmp) { | |
79072805 LW |
2260 | |
2261 | default: /* not a keyword */ | |
93a17b20 LW |
2262 | just_a_word: { |
2263 | GV *gv; | |
748a9306 | 2264 | char lastchar = (bufptr == oldoldbufptr ? 0 : bufptr[-1]); |
8990e307 LW |
2265 | |
2266 | /* Get the rest if it looks like a package qualifier */ | |
2267 | ||
a0d0e21e | 2268 | if (*s == '\'' || *s == ':' && s[1] == ':') { |
463ee0b2 | 2269 | s = scan_word(s, tokenbuf + len, TRUE, &len); |
a0d0e21e LW |
2270 | if (!len) |
2271 | croak("Bad name after %s::", tokenbuf); | |
2272 | } | |
8990e307 LW |
2273 | |
2274 | /* Do special processing at start of statement. */ | |
2275 | ||
2276 | if (expect == XSTATE) { | |
93a17b20 | 2277 | while (isSPACE(*s)) s++; |
8990e307 | 2278 | if (*s == ':') { /* It's a label. */ |
a0d0e21e | 2279 | yylval.pval = savepv(tokenbuf); |
93a17b20 LW |
2280 | s++; |
2281 | CLINE; | |
2282 | TOKEN(LABEL); | |
2283 | } | |
2284 | } | |
a0d0e21e | 2285 | else if (expect == XOPERATOR) { |
463ee0b2 LW |
2286 | if (bufptr == SvPVX(linestr)) { |
2287 | curcop->cop_line--; | |
2288 | warn(warn_nosemi); | |
2289 | curcop->cop_line++; | |
2290 | } | |
2291 | else | |
8990e307 | 2292 | no_op("Bare word",s); |
463ee0b2 | 2293 | } |
8990e307 LW |
2294 | |
2295 | /* Look for a subroutine with this name in current package. */ | |
2296 | ||
85e6fe83 | 2297 | gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV); |
8990e307 | 2298 | |
a0d0e21e LW |
2299 | /* Presume this is going to be a bareword of some sort. */ |
2300 | ||
2301 | CLINE; | |
2302 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); | |
2303 | yylval.opval->op_private = OPpCONST_BARE; | |
2304 | ||
8990e307 LW |
2305 | /* See if it's the indirect object for a list operator. */ |
2306 | ||
a0d0e21e LW |
2307 | if (oldoldbufptr && |
2308 | oldoldbufptr < bufptr && | |
2309 | (oldoldbufptr == last_lop || oldoldbufptr == last_uni) && | |
2310 | /* NO SKIPSPACE BEFORE HERE! */ | |
2311 | (expect == XREF || | |
2312 | (opargs[last_lop_op] >> OASHIFT & 7) == OA_FILEREF) ) | |
2313 | { | |
748a9306 LW |
2314 | bool immediate_paren = *s == '('; |
2315 | ||
a0d0e21e LW |
2316 | /* (Now we can afford to cross potential line boundary.) */ |
2317 | s = skipspace(s); | |
2318 | ||
2319 | /* Two barewords in a row may indicate method call. */ | |
2320 | ||
2321 | if ((isALPHA(*s) || *s == '$') && (tmp=intuit_method(s,gv))) | |
2322 | return tmp; | |
2323 | ||
2324 | /* If not a declared subroutine, it's an indirect object. */ | |
2325 | /* (But it's an indir obj regardless for sort.) */ | |
2326 | ||
748a9306 LW |
2327 | if (last_lop_op == OP_SORT || |
2328 | (!immediate_paren && (!gv || !GvCV(gv))) ) { | |
2329 | expect = (last_lop == oldoldbufptr) ? XTERM : XOPERATOR; | |
2330 | goto bareword; | |
93a17b20 LW |
2331 | } |
2332 | } | |
8990e307 LW |
2333 | |
2334 | /* If followed by a paren, it's certainly a subroutine. */ | |
2335 | ||
2336 | expect = XOPERATOR; | |
2337 | s = skipspace(s); | |
93a17b20 | 2338 | if (*s == '(') { |
79072805 | 2339 | CLINE; |
a0d0e21e | 2340 | nextval[nexttoke].opval = yylval.opval; |
463ee0b2 | 2341 | expect = XOPERATOR; |
93a17b20 | 2342 | force_next(WORD); |
463ee0b2 | 2343 | TOKEN('&'); |
79072805 | 2344 | } |
93a17b20 | 2345 | |
a0d0e21e | 2346 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 LW |
2347 | |
2348 | if ((*s == '$' || *s == '{') && (!gv || !GvCV(gv))) { | |
463ee0b2 | 2349 | last_lop = oldbufptr; |
8990e307 | 2350 | last_lop_op = OP_METHOD; |
93a17b20 | 2351 | PREBLOCK(METHOD); |
463ee0b2 LW |
2352 | } |
2353 | ||
8990e307 LW |
2354 | /* If followed by a bareword, see if it looks like indir obj. */ |
2355 | ||
a0d0e21e LW |
2356 | if ((isALPHA(*s) || *s == '$') && (tmp = intuit_method(s,gv))) |
2357 | return tmp; | |
93a17b20 | 2358 | |
8990e307 LW |
2359 | /* Not a method, so call it a subroutine (if defined) */ |
2360 | ||
2361 | if (gv && GvCV(gv)) { | |
2362 | nextval[nexttoke].opval = yylval.opval; | |
2363 | if (*s == '(') { | |
2364 | expect = XTERM; | |
2365 | force_next(WORD); | |
2366 | TOKEN('&'); | |
2367 | } | |
748a9306 | 2368 | if (lastchar == '-') |
c2960299 | 2369 | warn("Ambiguous use of -%s resolved as -&%s()", |
748a9306 | 2370 | tokenbuf, tokenbuf); |
8990e307 | 2371 | last_lop = oldbufptr; |
a0d0e21e | 2372 | last_lop_op = OP_ENTERSUB; |
8990e307 LW |
2373 | expect = XTERM; |
2374 | force_next(WORD); | |
2375 | TOKEN(NOAMP); | |
2376 | } | |
748a9306 LW |
2377 | |
2378 | if (hints & HINT_STRICT_SUBS && | |
2379 | lastchar != '-' && | |
a0d0e21e LW |
2380 | strnNE(s,"->",2) && |
2381 | last_lop_op != OP_ACCEPT && | |
2382 | last_lop_op != OP_PIPE_OP && | |
2383 | last_lop_op != OP_SOCKPAIR) | |
2384 | { | |
2385 | warn( | |
2386 | "Bareword \"%s\" not allowed while \"strict subs\" in use", | |
85e6fe83 LW |
2387 | tokenbuf); |
2388 | ++error_count; | |
2389 | } | |
8990e307 LW |
2390 | |
2391 | /* Call it a bare word */ | |
2392 | ||
748a9306 LW |
2393 | bareword: |
2394 | if (dowarn) { | |
2395 | if (lastchar != '-') { | |
2396 | for (d = tokenbuf; *d && isLOWER(*d); d++) ; | |
2397 | if (!*d) | |
2398 | warn(warn_reserved, tokenbuf); | |
2399 | } | |
2400 | } | |
2401 | if (lastchar && strchr("*%&", lastchar)) { | |
2402 | warn("Operator or semicolon missing before %c%s", | |
2403 | lastchar, tokenbuf); | |
c2960299 | 2404 | warn("Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
2405 | lastchar, lastchar); |
2406 | } | |
93a17b20 | 2407 | TOKEN(WORD); |
79072805 | 2408 | } |
79072805 LW |
2409 | |
2410 | case KEY___LINE__: | |
2411 | case KEY___FILE__: { | |
2412 | if (tokenbuf[2] == 'L') | |
2413 | (void)sprintf(tokenbuf,"%ld",(long)curcop->cop_line); | |
2414 | else | |
463ee0b2 | 2415 | strcpy(tokenbuf, SvPVX(GvSV(curcop->cop_filegv))); |
79072805 LW |
2416 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); |
2417 | TERM(THING); | |
2418 | } | |
2419 | ||
2420 | case KEY___END__: { | |
2421 | GV *gv; | |
79072805 LW |
2422 | |
2423 | /*SUPPRESS 560*/ | |
85e6fe83 | 2424 | if (!in_eval) { |
748a9306 | 2425 | gv = gv_fetchpv("main::DATA",TRUE, SVt_PVIO); |
79072805 LW |
2426 | SvMULTI_on(gv); |
2427 | if (!GvIO(gv)) | |
a0d0e21e LW |
2428 | GvIOp(gv) = newIO(); |
2429 | IoIFP(GvIOp(gv)) = rsfp; | |
2430 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
2431 | { | |
2432 | int fd = fileno(rsfp); | |
2433 | fcntl(fd,F_SETFD,fd >= 3); | |
2434 | } | |
79072805 LW |
2435 | #endif |
2436 | if (preprocess) | |
a0d0e21e | 2437 | IoTYPE(GvIOp(gv)) = '|'; |
79072805 | 2438 | else if ((FILE*)rsfp == stdin) |
a0d0e21e | 2439 | IoTYPE(GvIOp(gv)) = '-'; |
79072805 | 2440 | else |
a0d0e21e | 2441 | IoTYPE(GvIOp(gv)) = '<'; |
79072805 LW |
2442 | rsfp = Nullfp; |
2443 | } | |
2444 | goto fake_eof; | |
e929a76b | 2445 | } |
de3bb511 | 2446 | |
8990e307 | 2447 | case KEY_AUTOLOAD: |
ed6116ce | 2448 | case KEY_DESTROY: |
79072805 LW |
2449 | case KEY_BEGIN: |
2450 | case KEY_END: | |
a0d0e21e | 2451 | if (expect == XSTATE) { |
93a17b20 LW |
2452 | s = bufptr; |
2453 | goto really_sub; | |
79072805 LW |
2454 | } |
2455 | goto just_a_word; | |
2456 | ||
a0d0e21e LW |
2457 | case KEY_CORE: |
2458 | if (*s == ':' && s[1] == ':') { | |
2459 | s += 2; | |
748a9306 | 2460 | d = s; |
a0d0e21e LW |
2461 | s = scan_word(s, tokenbuf, FALSE, &len); |
2462 | tmp = keyword(tokenbuf, len); | |
2463 | if (tmp < 0) | |
2464 | tmp = -tmp; | |
2465 | goto reserved_word; | |
2466 | } | |
2467 | goto just_a_word; | |
2468 | ||
463ee0b2 LW |
2469 | case KEY_abs: |
2470 | UNI(OP_ABS); | |
2471 | ||
79072805 LW |
2472 | case KEY_alarm: |
2473 | UNI(OP_ALARM); | |
2474 | ||
2475 | case KEY_accept: | |
a0d0e21e | 2476 | LOP(OP_ACCEPT,XTERM); |
79072805 | 2477 | |
463ee0b2 LW |
2478 | case KEY_and: |
2479 | OPERATOR(ANDOP); | |
2480 | ||
79072805 | 2481 | case KEY_atan2: |
a0d0e21e | 2482 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 2483 | |
79072805 | 2484 | case KEY_bind: |
a0d0e21e | 2485 | LOP(OP_BIND,XTERM); |
79072805 LW |
2486 | |
2487 | case KEY_binmode: | |
2488 | UNI(OP_BINMODE); | |
2489 | ||
2490 | case KEY_bless: | |
a0d0e21e | 2491 | LOP(OP_BLESS,XTERM); |
79072805 LW |
2492 | |
2493 | case KEY_chop: | |
2494 | UNI(OP_CHOP); | |
2495 | ||
2496 | case KEY_continue: | |
2497 | PREBLOCK(CONTINUE); | |
2498 | ||
2499 | case KEY_chdir: | |
85e6fe83 | 2500 | (void)gv_fetchpv("ENV",TRUE, SVt_PVHV); /* may use HOME */ |
79072805 LW |
2501 | UNI(OP_CHDIR); |
2502 | ||
2503 | case KEY_close: | |
2504 | UNI(OP_CLOSE); | |
2505 | ||
2506 | case KEY_closedir: | |
2507 | UNI(OP_CLOSEDIR); | |
2508 | ||
2509 | case KEY_cmp: | |
2510 | Eop(OP_SCMP); | |
2511 | ||
2512 | case KEY_caller: | |
2513 | UNI(OP_CALLER); | |
2514 | ||
2515 | case KEY_crypt: | |
2516 | #ifdef FCRYPT | |
de3bb511 LW |
2517 | if (!cryptseen++) |
2518 | init_des(); | |
a687059c | 2519 | #endif |
a0d0e21e | 2520 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
2521 | |
2522 | case KEY_chmod: | |
748a9306 LW |
2523 | if (dowarn) { |
2524 | for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ; | |
2525 | if (*d != '0' && isDIGIT(*d)) | |
2526 | yywarn("chmod: mode argument is missing initial 0"); | |
2527 | } | |
a0d0e21e | 2528 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
2529 | |
2530 | case KEY_chown: | |
a0d0e21e | 2531 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
2532 | |
2533 | case KEY_connect: | |
a0d0e21e | 2534 | LOP(OP_CONNECT,XTERM); |
79072805 | 2535 | |
463ee0b2 LW |
2536 | case KEY_chr: |
2537 | UNI(OP_CHR); | |
2538 | ||
79072805 LW |
2539 | case KEY_cos: |
2540 | UNI(OP_COS); | |
2541 | ||
2542 | case KEY_chroot: | |
2543 | UNI(OP_CHROOT); | |
2544 | ||
2545 | case KEY_do: | |
2546 | s = skipspace(s); | |
2547 | if (*s == '{') | |
a0d0e21e | 2548 | PRETERMBLOCK(DO); |
79072805 | 2549 | if (*s != '\'') |
a0d0e21e | 2550 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
378cc40b | 2551 | OPERATOR(DO); |
79072805 LW |
2552 | |
2553 | case KEY_die: | |
a0d0e21e LW |
2554 | hints |= HINT_BLOCK_SCOPE; |
2555 | LOP(OP_DIE,XTERM); | |
79072805 LW |
2556 | |
2557 | case KEY_defined: | |
2558 | UNI(OP_DEFINED); | |
2559 | ||
2560 | case KEY_delete: | |
a0d0e21e | 2561 | UNI(OP_DELETE); |
79072805 LW |
2562 | |
2563 | case KEY_dbmopen: | |
a0d0e21e LW |
2564 | gv_fetchpv("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
2565 | LOP(OP_DBMOPEN,XTERM); | |
79072805 LW |
2566 | |
2567 | case KEY_dbmclose: | |
2568 | UNI(OP_DBMCLOSE); | |
2569 | ||
2570 | case KEY_dump: | |
a0d0e21e | 2571 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
2572 | LOOPX(OP_DUMP); |
2573 | ||
2574 | case KEY_else: | |
2575 | PREBLOCK(ELSE); | |
2576 | ||
2577 | case KEY_elsif: | |
2578 | yylval.ival = curcop->cop_line; | |
2579 | OPERATOR(ELSIF); | |
2580 | ||
2581 | case KEY_eq: | |
2582 | Eop(OP_SEQ); | |
2583 | ||
a0d0e21e LW |
2584 | case KEY_exists: |
2585 | UNI(OP_EXISTS); | |
2586 | ||
79072805 LW |
2587 | case KEY_exit: |
2588 | UNI(OP_EXIT); | |
2589 | ||
2590 | case KEY_eval: | |
79072805 | 2591 | s = skipspace(s); |
a0d0e21e | 2592 | expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 2593 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
2594 | |
2595 | case KEY_eof: | |
2596 | UNI(OP_EOF); | |
2597 | ||
2598 | case KEY_exp: | |
2599 | UNI(OP_EXP); | |
2600 | ||
2601 | case KEY_each: | |
2602 | UNI(OP_EACH); | |
2603 | ||
2604 | case KEY_exec: | |
2605 | set_csh(); | |
a0d0e21e | 2606 | LOP(OP_EXEC,XREF); |
79072805 LW |
2607 | |
2608 | case KEY_endhostent: | |
2609 | FUN0(OP_EHOSTENT); | |
2610 | ||
2611 | case KEY_endnetent: | |
2612 | FUN0(OP_ENETENT); | |
2613 | ||
2614 | case KEY_endservent: | |
2615 | FUN0(OP_ESERVENT); | |
2616 | ||
2617 | case KEY_endprotoent: | |
2618 | FUN0(OP_EPROTOENT); | |
2619 | ||
2620 | case KEY_endpwent: | |
2621 | FUN0(OP_EPWENT); | |
2622 | ||
2623 | case KEY_endgrent: | |
2624 | FUN0(OP_EGRENT); | |
2625 | ||
2626 | case KEY_for: | |
2627 | case KEY_foreach: | |
2628 | yylval.ival = curcop->cop_line; | |
2629 | while (s < bufend && isSPACE(*s)) | |
2630 | s++; | |
2631 | if (isIDFIRST(*s)) | |
463ee0b2 | 2632 | croak("Missing $ on loop variable"); |
79072805 LW |
2633 | OPERATOR(FOR); |
2634 | ||
2635 | case KEY_formline: | |
a0d0e21e | 2636 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
2637 | |
2638 | case KEY_fork: | |
2639 | FUN0(OP_FORK); | |
2640 | ||
2641 | case KEY_fcntl: | |
a0d0e21e | 2642 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
2643 | |
2644 | case KEY_fileno: | |
2645 | UNI(OP_FILENO); | |
2646 | ||
2647 | case KEY_flock: | |
a0d0e21e | 2648 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
2649 | |
2650 | case KEY_gt: | |
2651 | Rop(OP_SGT); | |
2652 | ||
2653 | case KEY_ge: | |
2654 | Rop(OP_SGE); | |
2655 | ||
2656 | case KEY_grep: | |
a0d0e21e | 2657 | LOP(OP_GREPSTART, *s == '(' ? XTERM : XREF); |
79072805 LW |
2658 | |
2659 | case KEY_goto: | |
a0d0e21e | 2660 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
2661 | LOOPX(OP_GOTO); |
2662 | ||
2663 | case KEY_gmtime: | |
2664 | UNI(OP_GMTIME); | |
2665 | ||
2666 | case KEY_getc: | |
2667 | UNI(OP_GETC); | |
2668 | ||
2669 | case KEY_getppid: | |
2670 | FUN0(OP_GETPPID); | |
2671 | ||
2672 | case KEY_getpgrp: | |
2673 | UNI(OP_GETPGRP); | |
2674 | ||
2675 | case KEY_getpriority: | |
a0d0e21e | 2676 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
2677 | |
2678 | case KEY_getprotobyname: | |
2679 | UNI(OP_GPBYNAME); | |
2680 | ||
2681 | case KEY_getprotobynumber: | |
a0d0e21e | 2682 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
2683 | |
2684 | case KEY_getprotoent: | |
2685 | FUN0(OP_GPROTOENT); | |
2686 | ||
2687 | case KEY_getpwent: | |
2688 | FUN0(OP_GPWENT); | |
2689 | ||
2690 | case KEY_getpwnam: | |
2691 | FUN1(OP_GPWNAM); | |
2692 | ||
2693 | case KEY_getpwuid: | |
2694 | FUN1(OP_GPWUID); | |
2695 | ||
2696 | case KEY_getpeername: | |
2697 | UNI(OP_GETPEERNAME); | |
2698 | ||
2699 | case KEY_gethostbyname: | |
2700 | UNI(OP_GHBYNAME); | |
2701 | ||
2702 | case KEY_gethostbyaddr: | |
a0d0e21e | 2703 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
2704 | |
2705 | case KEY_gethostent: | |
2706 | FUN0(OP_GHOSTENT); | |
2707 | ||
2708 | case KEY_getnetbyname: | |
2709 | UNI(OP_GNBYNAME); | |
2710 | ||
2711 | case KEY_getnetbyaddr: | |
a0d0e21e | 2712 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
2713 | |
2714 | case KEY_getnetent: | |
2715 | FUN0(OP_GNETENT); | |
2716 | ||
2717 | case KEY_getservbyname: | |
a0d0e21e | 2718 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
2719 | |
2720 | case KEY_getservbyport: | |
a0d0e21e | 2721 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
2722 | |
2723 | case KEY_getservent: | |
2724 | FUN0(OP_GSERVENT); | |
2725 | ||
2726 | case KEY_getsockname: | |
2727 | UNI(OP_GETSOCKNAME); | |
2728 | ||
2729 | case KEY_getsockopt: | |
a0d0e21e | 2730 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
2731 | |
2732 | case KEY_getgrent: | |
2733 | FUN0(OP_GGRENT); | |
2734 | ||
2735 | case KEY_getgrnam: | |
2736 | FUN1(OP_GGRNAM); | |
2737 | ||
2738 | case KEY_getgrgid: | |
2739 | FUN1(OP_GGRGID); | |
2740 | ||
2741 | case KEY_getlogin: | |
2742 | FUN0(OP_GETLOGIN); | |
2743 | ||
93a17b20 | 2744 | case KEY_glob: |
a0d0e21e LW |
2745 | set_csh(); |
2746 | LOP(OP_GLOB,XTERM); | |
93a17b20 | 2747 | |
79072805 LW |
2748 | case KEY_hex: |
2749 | UNI(OP_HEX); | |
2750 | ||
2751 | case KEY_if: | |
2752 | yylval.ival = curcop->cop_line; | |
2753 | OPERATOR(IF); | |
2754 | ||
2755 | case KEY_index: | |
a0d0e21e | 2756 | LOP(OP_INDEX,XTERM); |
79072805 LW |
2757 | |
2758 | case KEY_int: | |
2759 | UNI(OP_INT); | |
2760 | ||
2761 | case KEY_ioctl: | |
a0d0e21e | 2762 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
2763 | |
2764 | case KEY_join: | |
a0d0e21e | 2765 | LOP(OP_JOIN,XTERM); |
79072805 LW |
2766 | |
2767 | case KEY_keys: | |
2768 | UNI(OP_KEYS); | |
2769 | ||
2770 | case KEY_kill: | |
a0d0e21e | 2771 | LOP(OP_KILL,XTERM); |
79072805 LW |
2772 | |
2773 | case KEY_last: | |
a0d0e21e | 2774 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 2775 | LOOPX(OP_LAST); |
a0d0e21e | 2776 | |
79072805 LW |
2777 | case KEY_lc: |
2778 | UNI(OP_LC); | |
2779 | ||
2780 | case KEY_lcfirst: | |
2781 | UNI(OP_LCFIRST); | |
2782 | ||
2783 | case KEY_local: | |
93a17b20 | 2784 | yylval.ival = 0; |
79072805 LW |
2785 | OPERATOR(LOCAL); |
2786 | ||
2787 | case KEY_length: | |
2788 | UNI(OP_LENGTH); | |
2789 | ||
2790 | case KEY_lt: | |
2791 | Rop(OP_SLT); | |
2792 | ||
2793 | case KEY_le: | |
2794 | Rop(OP_SLE); | |
2795 | ||
2796 | case KEY_localtime: | |
2797 | UNI(OP_LOCALTIME); | |
2798 | ||
2799 | case KEY_log: | |
2800 | UNI(OP_LOG); | |
2801 | ||
2802 | case KEY_link: | |
a0d0e21e | 2803 | LOP(OP_LINK,XTERM); |
79072805 LW |
2804 | |
2805 | case KEY_listen: | |
a0d0e21e | 2806 | LOP(OP_LISTEN,XTERM); |
79072805 LW |
2807 | |
2808 | case KEY_lstat: | |
2809 | UNI(OP_LSTAT); | |
2810 | ||
2811 | case KEY_m: | |
2812 | s = scan_pat(s); | |
2813 | TERM(sublex_start()); | |
2814 | ||
a0d0e21e LW |
2815 | case KEY_map: |
2816 | LOP(OP_MAPSTART,XREF); | |
2817 | ||
79072805 | 2818 | case KEY_mkdir: |
a0d0e21e | 2819 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
2820 | |
2821 | case KEY_msgctl: | |
a0d0e21e | 2822 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
2823 | |
2824 | case KEY_msgget: | |
a0d0e21e | 2825 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
2826 | |
2827 | case KEY_msgrcv: | |
a0d0e21e | 2828 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
2829 | |
2830 | case KEY_msgsnd: | |
a0d0e21e | 2831 | LOP(OP_MSGSND,XTERM); |
79072805 | 2832 | |
93a17b20 LW |
2833 | case KEY_my: |
2834 | in_my = TRUE; | |
2835 | yylval.ival = 1; | |
2836 | OPERATOR(LOCAL); | |
2837 | ||
79072805 | 2838 | case KEY_next: |
a0d0e21e | 2839 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
2840 | LOOPX(OP_NEXT); |
2841 | ||
2842 | case KEY_ne: | |
2843 | Eop(OP_SNE); | |
2844 | ||
a0d0e21e LW |
2845 | case KEY_no: |
2846 | if (expect != XSTATE) | |
2847 | yyerror("\"no\" not allowed in expression"); | |
2848 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
2849 | yylval.ival = 0; | |
2850 | OPERATOR(USE); | |
2851 | ||
2852 | case KEY_not: | |
2853 | OPERATOR(NOTOP); | |
2854 | ||
79072805 | 2855 | case KEY_open: |
93a17b20 LW |
2856 | s = skipspace(s); |
2857 | if (isIDFIRST(*s)) { | |
2858 | char *t; | |
2859 | for (d = s; isALNUM(*d); d++) ; | |
2860 | t = skipspace(d); | |
2861 | if (strchr("|&*+-=!?:.", *t)) | |
2862 | warn("Precedence problem: open %.*s should be open(%.*s)", | |
2863 | d-s,s, d-s,s); | |
2864 | } | |
a0d0e21e | 2865 | LOP(OP_OPEN,XTERM); |
79072805 | 2866 | |
463ee0b2 | 2867 | case KEY_or: |
a0d0e21e | 2868 | yylval.ival = OP_OR; |
463ee0b2 LW |
2869 | OPERATOR(OROP); |
2870 | ||
79072805 LW |
2871 | case KEY_ord: |
2872 | UNI(OP_ORD); | |
2873 | ||
2874 | case KEY_oct: | |
2875 | UNI(OP_OCT); | |
2876 | ||
2877 | case KEY_opendir: | |
a0d0e21e | 2878 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
2879 | |
2880 | case KEY_print: | |
2881 | checkcomma(s,tokenbuf,"filehandle"); | |
a0d0e21e | 2882 | LOP(OP_PRINT,XREF); |
79072805 LW |
2883 | |
2884 | case KEY_printf: | |
2885 | checkcomma(s,tokenbuf,"filehandle"); | |
a0d0e21e | 2886 | LOP(OP_PRTF,XREF); |
79072805 LW |
2887 | |
2888 | case KEY_push: | |
a0d0e21e | 2889 | LOP(OP_PUSH,XTERM); |
79072805 LW |
2890 | |
2891 | case KEY_pop: | |
2892 | UNI(OP_POP); | |
2893 | ||
a0d0e21e LW |
2894 | case KEY_pos: |
2895 | UNI(OP_POS); | |
2896 | ||
79072805 | 2897 | case KEY_pack: |
a0d0e21e | 2898 | LOP(OP_PACK,XTERM); |
79072805 LW |
2899 | |
2900 | case KEY_package: | |
a0d0e21e | 2901 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
2902 | OPERATOR(PACKAGE); |
2903 | ||
2904 | case KEY_pipe: | |
a0d0e21e | 2905 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
2906 | |
2907 | case KEY_q: | |
2908 | s = scan_str(s); | |
2909 | if (!s) | |
85e6fe83 | 2910 | missingterm((char*)0); |
79072805 LW |
2911 | yylval.ival = OP_CONST; |
2912 | TERM(sublex_start()); | |
2913 | ||
a0d0e21e LW |
2914 | case KEY_quotemeta: |
2915 | UNI(OP_QUOTEMETA); | |
2916 | ||
8990e307 LW |
2917 | case KEY_qw: |
2918 | s = scan_str(s); | |
2919 | if (!s) | |
85e6fe83 | 2920 | missingterm((char*)0); |
8990e307 LW |
2921 | force_next(')'); |
2922 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, q(lex_stuff)); | |
2923 | lex_stuff = Nullsv; | |
2924 | force_next(THING); | |
2925 | force_next(','); | |
2926 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(" ",1)); | |
2927 | force_next(THING); | |
2928 | force_next('('); | |
a0d0e21e LW |
2929 | yylval.ival = OP_SPLIT; |
2930 | CLINE; | |
2931 | expect = XTERM; | |
2932 | bufptr = s; | |
2933 | last_lop = oldbufptr; | |
2934 | last_lop_op = OP_SPLIT; | |
2935 | return FUNC; | |
8990e307 | 2936 | |
79072805 LW |
2937 | case KEY_qq: |
2938 | s = scan_str(s); | |
2939 | if (!s) | |
85e6fe83 | 2940 | missingterm((char*)0); |
a0d0e21e | 2941 | yylval.ival = OP_STRINGIFY; |
ed6116ce LW |
2942 | if (SvIVX(lex_stuff) == '\'') |
2943 | SvIVX(lex_stuff) = 0; /* qq'$foo' should intepolate */ | |
79072805 LW |
2944 | TERM(sublex_start()); |
2945 | ||
2946 | case KEY_qx: | |
2947 | s = scan_str(s); | |
2948 | if (!s) | |
85e6fe83 | 2949 | missingterm((char*)0); |
79072805 LW |
2950 | yylval.ival = OP_BACKTICK; |
2951 | set_csh(); | |
2952 | TERM(sublex_start()); | |
2953 | ||
2954 | case KEY_return: | |
2955 | OLDLOP(OP_RETURN); | |
2956 | ||
2957 | case KEY_require: | |
748a9306 | 2958 | *tokenbuf = '\0'; |
a0d0e21e | 2959 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
748a9306 LW |
2960 | if (isIDFIRST(*tokenbuf)) |
2961 | gv_stashpv(tokenbuf, TRUE); | |
2962 | else if (*s == '<') | |
a0d0e21e | 2963 | yyerror("<> should be quotes"); |
463ee0b2 | 2964 | UNI(OP_REQUIRE); |
79072805 LW |
2965 | |
2966 | case KEY_reset: | |
2967 | UNI(OP_RESET); | |
2968 | ||
2969 | case KEY_redo: | |
a0d0e21e | 2970 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
2971 | LOOPX(OP_REDO); |
2972 | ||
2973 | case KEY_rename: | |
a0d0e21e | 2974 | LOP(OP_RENAME,XTERM); |
79072805 LW |
2975 | |
2976 | case KEY_rand: | |
2977 | UNI(OP_RAND); | |
2978 | ||
2979 | case KEY_rmdir: | |
2980 | UNI(OP_RMDIR); | |
2981 | ||
2982 | case KEY_rindex: | |
a0d0e21e | 2983 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
2984 | |
2985 | case KEY_read: | |
a0d0e21e | 2986 | LOP(OP_READ,XTERM); |
79072805 LW |
2987 | |
2988 | case KEY_readdir: | |
2989 | UNI(OP_READDIR); | |
2990 | ||
93a17b20 LW |
2991 | case KEY_readline: |
2992 | set_csh(); | |
2993 | UNI(OP_READLINE); | |
2994 | ||
2995 | case KEY_readpipe: | |
2996 | set_csh(); | |
2997 | UNI(OP_BACKTICK); | |
2998 | ||
79072805 LW |
2999 | case KEY_rewinddir: |
3000 | UNI(OP_REWINDDIR); | |
3001 | ||
3002 | case KEY_recv: | |
a0d0e21e | 3003 | LOP(OP_RECV,XTERM); |
79072805 LW |
3004 | |
3005 | case KEY_reverse: | |
a0d0e21e | 3006 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
3007 | |
3008 | case KEY_readlink: | |
3009 | UNI(OP_READLINK); | |
3010 | ||
3011 | case KEY_ref: | |
3012 | UNI(OP_REF); | |
3013 | ||
3014 | case KEY_s: | |
3015 | s = scan_subst(s); | |
3016 | if (yylval.opval) | |
3017 | TERM(sublex_start()); | |
3018 | else | |
3019 | TOKEN(1); /* force error */ | |
3020 | ||
a0d0e21e LW |
3021 | case KEY_chomp: |
3022 | UNI(OP_CHOMP); | |
3023 | ||
79072805 LW |
3024 | case KEY_scalar: |
3025 | UNI(OP_SCALAR); | |
3026 | ||
3027 | case KEY_select: | |
a0d0e21e | 3028 | LOP(OP_SELECT,XTERM); |
79072805 LW |
3029 | |
3030 | case KEY_seek: | |
a0d0e21e | 3031 | LOP(OP_SEEK,XTERM); |
79072805 LW |
3032 | |
3033 | case KEY_semctl: | |
a0d0e21e | 3034 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
3035 | |
3036 | case KEY_semget: | |
a0d0e21e | 3037 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
3038 | |
3039 | case KEY_semop: | |
a0d0e21e | 3040 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
3041 | |
3042 | case KEY_send: | |
a0d0e21e | 3043 | LOP(OP_SEND,XTERM); |
79072805 LW |
3044 | |
3045 | case KEY_setpgrp: | |
a0d0e21e | 3046 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
3047 | |
3048 | case KEY_setpriority: | |
a0d0e21e | 3049 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
3050 | |
3051 | case KEY_sethostent: | |
3052 | FUN1(OP_SHOSTENT); | |
3053 | ||
3054 | case KEY_setnetent: | |
3055 | FUN1(OP_SNETENT); | |
3056 | ||
3057 | case KEY_setservent: | |
3058 | FUN1(OP_SSERVENT); | |
3059 | ||
3060 | case KEY_setprotoent: | |
3061 | FUN1(OP_SPROTOENT); | |
3062 | ||
3063 | case KEY_setpwent: | |
3064 | FUN0(OP_SPWENT); | |
3065 | ||
3066 | case KEY_setgrent: | |
3067 | FUN0(OP_SGRENT); | |
3068 | ||
3069 | case KEY_seekdir: | |
a0d0e21e | 3070 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
3071 | |
3072 | case KEY_setsockopt: | |
a0d0e21e | 3073 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
3074 | |
3075 | case KEY_shift: | |
3076 | UNI(OP_SHIFT); | |
3077 | ||
3078 | case KEY_shmctl: | |
a0d0e21e | 3079 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
3080 | |
3081 | case KEY_shmget: | |
a0d0e21e | 3082 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
3083 | |
3084 | case KEY_shmread: | |
a0d0e21e | 3085 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
3086 | |
3087 | case KEY_shmwrite: | |
a0d0e21e | 3088 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
3089 | |
3090 | case KEY_shutdown: | |
a0d0e21e | 3091 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
3092 | |
3093 | case KEY_sin: | |
3094 | UNI(OP_SIN); | |
3095 | ||
3096 | case KEY_sleep: | |
3097 | UNI(OP_SLEEP); | |
3098 | ||
3099 | case KEY_socket: | |
a0d0e21e | 3100 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
3101 | |
3102 | case KEY_socketpair: | |
a0d0e21e | 3103 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
3104 | |
3105 | case KEY_sort: | |
3106 | checkcomma(s,tokenbuf,"subroutine name"); | |
3107 | s = skipspace(s); | |
3108 | if (*s == ';' || *s == ')') /* probably a close */ | |
463ee0b2 LW |
3109 | croak("sort is now a reserved word"); |
3110 | expect = XTERM; | |
a0d0e21e LW |
3111 | s = force_word(s,WORD,TRUE,TRUE,TRUE); |
3112 | LOP(OP_SORT,XREF); | |
79072805 LW |
3113 | |
3114 | case KEY_split: | |
a0d0e21e | 3115 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
3116 | |
3117 | case KEY_sprintf: | |
a0d0e21e | 3118 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
3119 | |
3120 | case KEY_splice: | |
a0d0e21e | 3121 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
3122 | |
3123 | case KEY_sqrt: | |
3124 | UNI(OP_SQRT); | |
3125 | ||
3126 | case KEY_srand: | |
3127 | UNI(OP_SRAND); | |
3128 | ||
3129 | case KEY_stat: | |
3130 | UNI(OP_STAT); | |
3131 | ||
3132 | case KEY_study: | |
3133 | sawstudy++; | |
3134 | UNI(OP_STUDY); | |
3135 | ||
3136 | case KEY_substr: | |
a0d0e21e | 3137 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
3138 | |
3139 | case KEY_format: | |
3140 | case KEY_sub: | |
93a17b20 | 3141 | really_sub: |
79072805 | 3142 | s = skipspace(s); |
a0d0e21e LW |
3143 | if (*s == '{' && tmp == KEY_sub) { |
3144 | sv_setpv(subname,"__ANON__"); | |
3145 | PRETERMBLOCK(ANONSUB); | |
3146 | } | |
85e6fe83 | 3147 | expect = XBLOCK; |
463ee0b2 LW |
3148 | if (isIDFIRST(*s) || *s == '\'' || *s == ':') { |
3149 | char tmpbuf[128]; | |
3150 | d = scan_word(s, tmpbuf, TRUE, &len); | |
3151 | if (strchr(tmpbuf, ':')) | |
3152 | sv_setpv(subname, tmpbuf); | |
3153 | else { | |
3154 | sv_setsv(subname,curstname); | |
8990e307 | 3155 | sv_catpvn(subname,"::",2); |
463ee0b2 LW |
3156 | sv_catpvn(subname,tmpbuf,len); |
3157 | } | |
a0d0e21e | 3158 | s = force_word(s,WORD,FALSE,TRUE,TRUE); |
79072805 LW |
3159 | } |
3160 | else | |
3161 | sv_setpv(subname,"?"); | |
3162 | ||
93a17b20 | 3163 | if (tmp != KEY_format) |
79072805 LW |
3164 | PREBLOCK(SUB); |
3165 | ||
85e6fe83 LW |
3166 | s = skipspace(s); |
3167 | if (*s == '=') | |
3168 | lex_formbrack = lex_brackets + 1; | |
79072805 LW |
3169 | OPERATOR(FORMAT); |
3170 | ||
3171 | case KEY_system: | |
3172 | set_csh(); | |
a0d0e21e | 3173 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
3174 | |
3175 | case KEY_symlink: | |
a0d0e21e | 3176 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
3177 | |
3178 | case KEY_syscall: | |
a0d0e21e | 3179 | LOP(OP_SYSCALL,XTERM); |
79072805 LW |
3180 | |
3181 | case KEY_sysread: | |
a0d0e21e | 3182 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
3183 | |
3184 | case KEY_syswrite: | |
a0d0e21e | 3185 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
3186 | |
3187 | case KEY_tr: | |
3188 | s = scan_trans(s); | |
3189 | TERM(sublex_start()); | |
3190 | ||
3191 | case KEY_tell: | |
3192 | UNI(OP_TELL); | |
3193 | ||
3194 | case KEY_telldir: | |
3195 | UNI(OP_TELLDIR); | |
3196 | ||
463ee0b2 | 3197 | case KEY_tie: |
a0d0e21e | 3198 | LOP(OP_TIE,XTERM); |
463ee0b2 | 3199 | |
79072805 LW |
3200 | case KEY_time: |
3201 | FUN0(OP_TIME); | |
3202 | ||
3203 | case KEY_times: | |
3204 | FUN0(OP_TMS); | |
3205 | ||
3206 | case KEY_truncate: | |
a0d0e21e | 3207 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
3208 | |
3209 | case KEY_uc: | |
3210 | UNI(OP_UC); | |
3211 | ||
3212 | case KEY_ucfirst: | |
3213 | UNI(OP_UCFIRST); | |
3214 | ||
463ee0b2 LW |
3215 | case KEY_untie: |
3216 | UNI(OP_UNTIE); | |
3217 | ||
79072805 LW |
3218 | case KEY_until: |
3219 | yylval.ival = curcop->cop_line; | |
3220 | OPERATOR(UNTIL); | |
3221 | ||
3222 | case KEY_unless: | |
3223 | yylval.ival = curcop->cop_line; | |
3224 | OPERATOR(UNLESS); | |
3225 | ||
3226 | case KEY_unlink: | |
a0d0e21e | 3227 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
3228 | |
3229 | case KEY_undef: | |
3230 | UNI(OP_UNDEF); | |
3231 | ||
3232 | case KEY_unpack: | |
a0d0e21e | 3233 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
3234 | |
3235 | case KEY_utime: | |
a0d0e21e | 3236 | LOP(OP_UTIME,XTERM); |
79072805 LW |
3237 | |
3238 | case KEY_umask: | |
748a9306 LW |
3239 | if (dowarn) { |
3240 | for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ; | |
3241 | if (*d != '0' && isDIGIT(*d)) | |
3242 | yywarn("umask: argument is missing initial 0"); | |
3243 | } | |
79072805 LW |
3244 | UNI(OP_UMASK); |
3245 | ||
3246 | case KEY_unshift: | |
a0d0e21e LW |
3247 | LOP(OP_UNSHIFT,XTERM); |
3248 | ||
3249 | case KEY_use: | |
3250 | if (expect != XSTATE) | |
3251 | yyerror("\"use\" not allowed in expression"); | |
3252 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3253 | yylval.ival = 1; | |
3254 | OPERATOR(USE); | |
79072805 LW |
3255 | |
3256 | case KEY_values: | |
3257 | UNI(OP_VALUES); | |
3258 | ||
3259 | case KEY_vec: | |
3260 | sawvec = TRUE; | |
a0d0e21e | 3261 | LOP(OP_VEC,XTERM); |
79072805 LW |
3262 | |
3263 | case KEY_while: | |
3264 | yylval.ival = curcop->cop_line; | |
3265 | OPERATOR(WHILE); | |
3266 | ||
3267 | case KEY_warn: | |
a0d0e21e LW |
3268 | hints |= HINT_BLOCK_SCOPE; |
3269 | LOP(OP_WARN,XTERM); | |
79072805 LW |
3270 | |
3271 | case KEY_wait: | |
3272 | FUN0(OP_WAIT); | |
3273 | ||
3274 | case KEY_waitpid: | |
a0d0e21e | 3275 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
3276 | |
3277 | case KEY_wantarray: | |
3278 | FUN0(OP_WANTARRAY); | |
3279 | ||
3280 | case KEY_write: | |
85e6fe83 | 3281 | gv_fetchpv("\f",TRUE, SVt_PV); /* Make sure $^L is defined */ |
79072805 LW |
3282 | UNI(OP_ENTERWRITE); |
3283 | ||
3284 | case KEY_x: | |
3285 | if (expect == XOPERATOR) | |
3286 | Mop(OP_REPEAT); | |
3287 | check_uni(); | |
3288 | goto just_a_word; | |
3289 | ||
a0d0e21e LW |
3290 | case KEY_xor: |
3291 | yylval.ival = OP_XOR; | |
3292 | OPERATOR(OROP); | |
3293 | ||
79072805 LW |
3294 | case KEY_y: |
3295 | s = scan_trans(s); | |
3296 | TERM(sublex_start()); | |
3297 | } | |
3298 | } | |
3299 | } | |
3300 | ||
3301 | I32 | |
3302 | keyword(d, len) | |
3303 | register char *d; | |
3304 | I32 len; | |
3305 | { | |
3306 | switch (*d) { | |
3307 | case '_': | |
3308 | if (d[1] == '_') { | |
a0d0e21e LW |
3309 | if (strEQ(d,"__LINE__")) return -KEY___LINE__; |
3310 | if (strEQ(d,"__FILE__")) return -KEY___FILE__; | |
79072805 LW |
3311 | if (strEQ(d,"__END__")) return KEY___END__; |
3312 | } | |
3313 | break; | |
8990e307 LW |
3314 | case 'A': |
3315 | if (strEQ(d,"AUTOLOAD")) return KEY_AUTOLOAD; | |
3316 | break; | |
79072805 | 3317 | case 'a': |
463ee0b2 LW |
3318 | switch (len) { |
3319 | case 3: | |
a0d0e21e LW |
3320 | if (strEQ(d,"and")) return -KEY_and; |
3321 | if (strEQ(d,"abs")) return -KEY_abs; | |
85e6fe83 | 3322 | break; |
463ee0b2 | 3323 | case 5: |
a0d0e21e LW |
3324 | if (strEQ(d,"alarm")) return -KEY_alarm; |
3325 | if (strEQ(d,"atan2")) return -KEY_atan2; | |
463ee0b2 LW |
3326 | break; |
3327 | case 6: | |
a0d0e21e | 3328 | if (strEQ(d,"accept")) return -KEY_accept; |
463ee0b2 LW |
3329 | break; |
3330 | } | |
79072805 LW |
3331 | break; |
3332 | case 'B': | |
3333 | if (strEQ(d,"BEGIN")) return KEY_BEGIN; | |
93a17b20 | 3334 | break; |
79072805 | 3335 | case 'b': |
a0d0e21e LW |
3336 | if (strEQ(d,"bless")) return -KEY_bless; |
3337 | if (strEQ(d,"bind")) return -KEY_bind; | |
3338 | if (strEQ(d,"binmode")) return -KEY_binmode; | |
3339 | break; | |
3340 | case 'C': | |
3341 | if (strEQ(d,"CORE")) return -KEY_CORE; | |
79072805 LW |
3342 | break; |
3343 | case 'c': | |
3344 | switch (len) { | |
3345 | case 3: | |
a0d0e21e LW |
3346 | if (strEQ(d,"cmp")) return -KEY_cmp; |
3347 | if (strEQ(d,"chr")) return -KEY_chr; | |
3348 | if (strEQ(d,"cos")) return -KEY_cos; | |
79072805 LW |
3349 | break; |
3350 | case 4: | |
3351 | if (strEQ(d,"chop")) return KEY_chop; | |
3352 | break; | |
3353 | case 5: | |
a0d0e21e LW |
3354 | if (strEQ(d,"close")) return -KEY_close; |
3355 | if (strEQ(d,"chdir")) return -KEY_chdir; | |
3356 | if (strEQ(d,"chomp")) return KEY_chomp; | |
3357 | if (strEQ(d,"chmod")) return -KEY_chmod; | |
3358 | if (strEQ(d,"chown")) return -KEY_chown; | |
3359 | if (strEQ(d,"crypt")) return -KEY_crypt; | |
79072805 LW |
3360 | break; |
3361 | case 6: | |
a0d0e21e LW |
3362 | if (strEQ(d,"chroot")) return -KEY_chroot; |
3363 | if (strEQ(d,"caller")) return -KEY_caller; | |
79072805 LW |
3364 | break; |
3365 | case 7: | |
a0d0e21e | 3366 | if (strEQ(d,"connect")) return -KEY_connect; |
79072805 LW |
3367 | break; |
3368 | case 8: | |
a0d0e21e LW |
3369 | if (strEQ(d,"closedir")) return -KEY_closedir; |
3370 | if (strEQ(d,"continue")) return -KEY_continue; | |
79072805 LW |
3371 | break; |
3372 | } | |
3373 | break; | |
ed6116ce LW |
3374 | case 'D': |
3375 | if (strEQ(d,"DESTROY")) return KEY_DESTROY; | |
3376 | break; | |
79072805 LW |
3377 | case 'd': |
3378 | switch (len) { | |
3379 | case 2: | |
3380 | if (strEQ(d,"do")) return KEY_do; | |
3381 | break; | |
3382 | case 3: | |
a0d0e21e | 3383 | if (strEQ(d,"die")) return -KEY_die; |
79072805 LW |
3384 | break; |
3385 | case 4: | |
a0d0e21e | 3386 | if (strEQ(d,"dump")) return -KEY_dump; |
79072805 LW |
3387 | break; |
3388 | case 6: | |
3389 | if (strEQ(d,"delete")) return KEY_delete; | |
3390 | break; | |
3391 | case 7: | |
3392 | if (strEQ(d,"defined")) return KEY_defined; | |
a0d0e21e | 3393 | if (strEQ(d,"dbmopen")) return -KEY_dbmopen; |
79072805 LW |
3394 | break; |
3395 | case 8: | |
a0d0e21e | 3396 | if (strEQ(d,"dbmclose")) return -KEY_dbmclose; |
79072805 LW |
3397 | break; |
3398 | } | |
3399 | break; | |
3400 | case 'E': | |
a0d0e21e | 3401 | if (strEQ(d,"EQ")) { deprecate(d); return -KEY_eq;} |
79072805 LW |
3402 | if (strEQ(d,"END")) return KEY_END; |
3403 | break; | |
3404 | case 'e': | |
3405 | switch (len) { | |
3406 | case 2: | |
a0d0e21e | 3407 | if (strEQ(d,"eq")) return -KEY_eq; |
79072805 LW |
3408 | break; |
3409 | case 3: | |
a0d0e21e LW |
3410 | if (strEQ(d,"eof")) return -KEY_eof; |
3411 | if (strEQ(d,"exp")) return -KEY_exp; | |
79072805 LW |
3412 | break; |
3413 | case 4: | |
3414 | if (strEQ(d,"else")) return KEY_else; | |
a0d0e21e | 3415 | if (strEQ(d,"exit")) return -KEY_exit; |
79072805 | 3416 | if (strEQ(d,"eval")) return KEY_eval; |
a0d0e21e | 3417 | if (strEQ(d,"exec")) return -KEY_exec; |
79072805 LW |
3418 | if (strEQ(d,"each")) return KEY_each; |
3419 | break; | |
3420 | case 5: | |
3421 | if (strEQ(d,"elsif")) return KEY_elsif; | |
3422 | break; | |
a0d0e21e LW |
3423 | case 6: |
3424 | if (strEQ(d,"exists")) return KEY_exists; | |
3425 | break; | |
79072805 | 3426 | case 8: |
a0d0e21e LW |
3427 | if (strEQ(d,"endgrent")) return -KEY_endgrent; |
3428 | if (strEQ(d,"endpwent")) return -KEY_endpwent; | |
79072805 LW |
3429 | break; |
3430 | case 9: | |
a0d0e21e | 3431 | if (strEQ(d,"endnetent")) return -KEY_endnetent; |
79072805 LW |
3432 | break; |
3433 | case 10: | |
a0d0e21e LW |
3434 | if (strEQ(d,"endhostent")) return -KEY_endhostent; |
3435 | if (strEQ(d,"endservent")) return -KEY_endservent; | |
79072805 LW |
3436 | break; |
3437 | case 11: | |
a0d0e21e | 3438 | if (strEQ(d,"endprotoent")) return -KEY_endprotoent; |
79072805 | 3439 | break; |
a687059c | 3440 | } |
a687059c | 3441 | break; |
79072805 LW |
3442 | case 'f': |
3443 | switch (len) { | |
3444 | case 3: | |
3445 | if (strEQ(d,"for")) return KEY_for; | |
3446 | break; | |
3447 | case 4: | |
a0d0e21e | 3448 | if (strEQ(d,"fork")) return -KEY_fork; |
79072805 LW |
3449 | break; |
3450 | case 5: | |
a0d0e21e LW |
3451 | if (strEQ(d,"fcntl")) return -KEY_fcntl; |
3452 | if (strEQ(d,"flock")) return -KEY_flock; | |
79072805 LW |
3453 | break; |
3454 | case 6: | |
3455 | if (strEQ(d,"format")) return KEY_format; | |
a0d0e21e | 3456 | if (strEQ(d,"fileno")) return -KEY_fileno; |
79072805 LW |
3457 | break; |
3458 | case 7: | |
3459 | if (strEQ(d,"foreach")) return KEY_foreach; | |
3460 | break; | |
3461 | case 8: | |
a0d0e21e | 3462 | if (strEQ(d,"formline")) return -KEY_formline; |
79072805 | 3463 | break; |
378cc40b | 3464 | } |
a687059c | 3465 | break; |
79072805 LW |
3466 | case 'G': |
3467 | if (len == 2) { | |
a0d0e21e LW |
3468 | if (strEQ(d,"GT")) { deprecate(d); return -KEY_gt;} |
3469 | if (strEQ(d,"GE")) { deprecate(d); return -KEY_ge;} | |
9f68db38 | 3470 | } |
a687059c | 3471 | break; |
79072805 | 3472 | case 'g': |
a687059c LW |
3473 | if (strnEQ(d,"get",3)) { |
3474 | d += 3; | |
3475 | if (*d == 'p') { | |
79072805 LW |
3476 | switch (len) { |
3477 | case 7: | |
a0d0e21e LW |
3478 | if (strEQ(d,"ppid")) return -KEY_getppid; |
3479 | if (strEQ(d,"pgrp")) return -KEY_getpgrp; | |
79072805 LW |
3480 | break; |
3481 | case 8: | |
a0d0e21e LW |
3482 | if (strEQ(d,"pwent")) return -KEY_getpwent; |
3483 | if (strEQ(d,"pwnam")) return -KEY_getpwnam; | |
3484 | if (strEQ(d,"pwuid")) return -KEY_getpwuid; | |
79072805 LW |
3485 | break; |
3486 | case 11: | |
a0d0e21e LW |
3487 | if (strEQ(d,"peername")) return -KEY_getpeername; |
3488 | if (strEQ(d,"protoent")) return -KEY_getprotoent; | |
3489 | if (strEQ(d,"priority")) return -KEY_getpriority; | |
79072805 LW |
3490 | break; |
3491 | case 14: | |
a0d0e21e | 3492 | if (strEQ(d,"protobyname")) return -KEY_getprotobyname; |
79072805 LW |
3493 | break; |
3494 | case 16: | |
a0d0e21e | 3495 | if (strEQ(d,"protobynumber"))return -KEY_getprotobynumber; |
79072805 LW |
3496 | break; |
3497 | } | |
a687059c LW |
3498 | } |
3499 | else if (*d == 'h') { | |
a0d0e21e LW |
3500 | if (strEQ(d,"hostbyname")) return -KEY_gethostbyname; |
3501 | if (strEQ(d,"hostbyaddr")) return -KEY_gethostbyaddr; | |
3502 | if (strEQ(d,"hostent")) return -KEY_gethostent; | |
a687059c LW |
3503 | } |
3504 | else if (*d == 'n') { | |
a0d0e21e LW |
3505 | if (strEQ(d,"netbyname")) return -KEY_getnetbyname; |
3506 | if (strEQ(d,"netbyaddr")) return -KEY_getnetbyaddr; | |
3507 | if (strEQ(d,"netent")) return -KEY_getnetent; | |
a687059c LW |
3508 | } |
3509 | else if (*d == 's') { | |
a0d0e21e LW |
3510 | if (strEQ(d,"servbyname")) return -KEY_getservbyname; |
3511 | if (strEQ(d,"servbyport")) return -KEY_getservbyport; | |
3512 | if (strEQ(d,"servent")) return -KEY_getservent; | |
3513 | if (strEQ(d,"sockname")) return -KEY_getsockname; | |
3514 | if (strEQ(d,"sockopt")) return -KEY_getsockopt; | |
a687059c LW |
3515 | } |
3516 | else if (*d == 'g') { | |
a0d0e21e LW |
3517 | if (strEQ(d,"grent")) return -KEY_getgrent; |
3518 | if (strEQ(d,"grnam")) return -KEY_getgrnam; | |
3519 | if (strEQ(d,"grgid")) return -KEY_getgrgid; | |
a687059c LW |
3520 | } |
3521 | else if (*d == 'l') { | |
a0d0e21e | 3522 | if (strEQ(d,"login")) return -KEY_getlogin; |
a687059c | 3523 | } |
a0d0e21e | 3524 | else if (strEQ(d,"c")) return -KEY_getc; |
79072805 | 3525 | break; |
a687059c | 3526 | } |
79072805 LW |
3527 | switch (len) { |
3528 | case 2: | |
a0d0e21e LW |
3529 | if (strEQ(d,"gt")) return -KEY_gt; |
3530 | if (strEQ(d,"ge")) return -KEY_ge; | |
79072805 LW |
3531 | break; |
3532 | case 4: | |
3533 | if (strEQ(d,"grep")) return KEY_grep; | |
3534 | if (strEQ(d,"goto")) return KEY_goto; | |
a0d0e21e | 3535 | if (strEQ(d,"glob")) return -KEY_glob; |
79072805 LW |
3536 | break; |
3537 | case 6: | |
a0d0e21e | 3538 | if (strEQ(d,"gmtime")) return -KEY_gmtime; |
79072805 | 3539 | break; |
378cc40b | 3540 | } |
a687059c | 3541 | break; |
79072805 | 3542 | case 'h': |
a0d0e21e | 3543 | if (strEQ(d,"hex")) return -KEY_hex; |
a687059c | 3544 | break; |
79072805 LW |
3545 | case 'i': |
3546 | switch (len) { | |
3547 | case 2: | |
3548 | if (strEQ(d,"if")) return KEY_if; | |
3549 | break; | |
3550 | case 3: | |
a0d0e21e | 3551 | if (strEQ(d,"int")) return -KEY_int; |
79072805 LW |
3552 | break; |
3553 | case 5: | |
a0d0e21e LW |
3554 | if (strEQ(d,"index")) return -KEY_index; |
3555 | if (strEQ(d,"ioctl")) return -KEY_ioctl; | |
79072805 LW |
3556 | break; |
3557 | } | |
a687059c | 3558 | break; |
79072805 | 3559 | case 'j': |
a0d0e21e | 3560 | if (strEQ(d,"join")) return -KEY_join; |
a687059c | 3561 | break; |
79072805 LW |
3562 | case 'k': |
3563 | if (len == 4) { | |
3564 | if (strEQ(d,"keys")) return KEY_keys; | |
a0d0e21e | 3565 | if (strEQ(d,"kill")) return -KEY_kill; |
663a0e37 | 3566 | } |
79072805 LW |
3567 | break; |
3568 | case 'L': | |
3569 | if (len == 2) { | |
a0d0e21e LW |
3570 | if (strEQ(d,"LT")) { deprecate(d); return -KEY_lt;} |
3571 | if (strEQ(d,"LE")) { deprecate(d); return -KEY_le;} | |
378cc40b | 3572 | } |
79072805 LW |
3573 | break; |
3574 | case 'l': | |
3575 | switch (len) { | |
3576 | case 2: | |
a0d0e21e LW |
3577 | if (strEQ(d,"lt")) return -KEY_lt; |
3578 | if (strEQ(d,"le")) return -KEY_le; | |
3579 | if (strEQ(d,"lc")) return -KEY_lc; | |
79072805 LW |
3580 | break; |
3581 | case 3: | |
a0d0e21e | 3582 | if (strEQ(d,"log")) return -KEY_log; |
79072805 LW |
3583 | break; |
3584 | case 4: | |
3585 | if (strEQ(d,"last")) return KEY_last; | |
a0d0e21e | 3586 | if (strEQ(d,"link")) return -KEY_link; |
395c3793 | 3587 | break; |
79072805 LW |
3588 | case 5: |
3589 | if (strEQ(d,"local")) return KEY_local; | |
a0d0e21e | 3590 | if (strEQ(d,"lstat")) return -KEY_lstat; |
79072805 LW |
3591 | break; |
3592 | case 6: | |
a0d0e21e LW |
3593 | if (strEQ(d,"length")) return -KEY_length; |
3594 | if (strEQ(d,"listen")) return -KEY_listen; | |
79072805 LW |
3595 | break; |
3596 | case 7: | |
a0d0e21e | 3597 | if (strEQ(d,"lcfirst")) return -KEY_lcfirst; |
79072805 LW |
3598 | break; |
3599 | case 9: | |
a0d0e21e | 3600 | if (strEQ(d,"localtime")) return -KEY_localtime; |
395c3793 LW |
3601 | break; |
3602 | } | |
a687059c | 3603 | break; |
79072805 LW |
3604 | case 'm': |
3605 | switch (len) { | |
3606 | case 1: return KEY_m; | |
93a17b20 LW |
3607 | case 2: |
3608 | if (strEQ(d,"my")) return KEY_my; | |
3609 | break; | |
a0d0e21e LW |
3610 | case 3: |
3611 | if (strEQ(d,"map")) return KEY_map; | |
3612 | break; | |
79072805 | 3613 | case 5: |
a0d0e21e | 3614 | if (strEQ(d,"mkdir")) return -KEY_mkdir; |
79072805 LW |
3615 | break; |
3616 | case 6: | |
a0d0e21e LW |
3617 | if (strEQ(d,"msgctl")) return -KEY_msgctl; |
3618 | if (strEQ(d,"msgget")) return -KEY_msgget; | |
3619 | if (strEQ(d,"msgrcv")) return -KEY_msgrcv; | |
3620 | if (strEQ(d,"msgsnd")) return -KEY_msgsnd; | |
79072805 LW |
3621 | break; |
3622 | } | |
a687059c | 3623 | break; |
79072805 | 3624 | case 'N': |
a0d0e21e | 3625 | if (strEQ(d,"NE")) { deprecate(d); return -KEY_ne;} |
a687059c | 3626 | break; |
79072805 LW |
3627 | case 'n': |
3628 | if (strEQ(d,"next")) return KEY_next; | |
a0d0e21e LW |
3629 | if (strEQ(d,"ne")) return -KEY_ne; |
3630 | if (strEQ(d,"not")) return -KEY_not; | |
3631 | if (strEQ(d,"no")) return KEY_no; | |
a687059c | 3632 | break; |
79072805 LW |
3633 | case 'o': |
3634 | switch (len) { | |
463ee0b2 | 3635 | case 2: |
a0d0e21e | 3636 | if (strEQ(d,"or")) return -KEY_or; |
463ee0b2 | 3637 | break; |
79072805 | 3638 | case 3: |
a0d0e21e LW |
3639 | if (strEQ(d,"ord")) return -KEY_ord; |
3640 | if (strEQ(d,"oct")) return -KEY_oct; | |
79072805 LW |
3641 | break; |
3642 | case 4: | |
a0d0e21e | 3643 | if (strEQ(d,"open")) return -KEY_open; |
79072805 LW |
3644 | break; |
3645 | case 7: | |
a0d0e21e | 3646 | if (strEQ(d,"opendir")) return -KEY_opendir; |
79072805 | 3647 | break; |
fe14fcc3 | 3648 | } |
a687059c | 3649 | break; |
79072805 LW |
3650 | case 'p': |
3651 | switch (len) { | |
3652 | case 3: | |
3653 | if (strEQ(d,"pop")) return KEY_pop; | |
a0d0e21e | 3654 | if (strEQ(d,"pos")) return KEY_pos; |
79072805 LW |
3655 | break; |
3656 | case 4: | |
3657 | if (strEQ(d,"push")) return KEY_push; | |
a0d0e21e LW |
3658 | if (strEQ(d,"pack")) return -KEY_pack; |
3659 | if (strEQ(d,"pipe")) return -KEY_pipe; | |
79072805 LW |
3660 | break; |
3661 | case 5: | |
3662 | if (strEQ(d,"print")) return KEY_print; | |
3663 | break; | |
3664 | case 6: | |
3665 | if (strEQ(d,"printf")) return KEY_printf; | |
3666 | break; | |
3667 | case 7: | |
3668 | if (strEQ(d,"package")) return KEY_package; | |
3669 | break; | |
663a0e37 | 3670 | } |
79072805 LW |
3671 | break; |
3672 | case 'q': | |
3673 | if (len <= 2) { | |
3674 | if (strEQ(d,"q")) return KEY_q; | |
3675 | if (strEQ(d,"qq")) return KEY_qq; | |
8990e307 | 3676 | if (strEQ(d,"qw")) return KEY_qw; |
79072805 | 3677 | if (strEQ(d,"qx")) return KEY_qx; |
663a0e37 | 3678 | } |
a0d0e21e | 3679 | else if (strEQ(d,"quotemeta")) return -KEY_quotemeta; |
79072805 LW |
3680 | break; |
3681 | case 'r': | |
3682 | switch (len) { | |
3683 | case 3: | |
a0d0e21e | 3684 | if (strEQ(d,"ref")) return -KEY_ref; |
79072805 LW |
3685 | break; |
3686 | case 4: | |
a0d0e21e LW |
3687 | if (strEQ(d,"read")) return -KEY_read; |
3688 | if (strEQ(d,"rand")) return -KEY_rand; | |
3689 | if (strEQ(d,"recv")) return -KEY_recv; | |
79072805 LW |
3690 | if (strEQ(d,"redo")) return KEY_redo; |
3691 | break; | |
3692 | case 5: | |
a0d0e21e LW |
3693 | if (strEQ(d,"rmdir")) return -KEY_rmdir; |
3694 | if (strEQ(d,"reset")) return -KEY_reset; | |
79072805 LW |
3695 | break; |
3696 | case 6: | |
3697 | if (strEQ(d,"return")) return KEY_return; | |
a0d0e21e LW |
3698 | if (strEQ(d,"rename")) return -KEY_rename; |
3699 | if (strEQ(d,"rindex")) return -KEY_rindex; | |
79072805 LW |
3700 | break; |
3701 | case 7: | |
a0d0e21e LW |
3702 | if (strEQ(d,"require")) return -KEY_require; |
3703 | if (strEQ(d,"reverse")) return -KEY_reverse; | |
3704 | if (strEQ(d,"readdir")) return -KEY_readdir; | |
79072805 LW |
3705 | break; |
3706 | case 8: | |
a0d0e21e LW |
3707 | if (strEQ(d,"readlink")) return -KEY_readlink; |
3708 | if (strEQ(d,"readline")) return -KEY_readline; | |
3709 | if (strEQ(d,"readpipe")) return -KEY_readpipe; | |
79072805 LW |
3710 | break; |
3711 | case 9: | |
a0d0e21e | 3712 | if (strEQ(d,"rewinddir")) return -KEY_rewinddir; |
79072805 | 3713 | break; |
a687059c | 3714 | } |
79072805 LW |
3715 | break; |
3716 | case 's': | |
a687059c | 3717 | switch (d[1]) { |
79072805 | 3718 | case 0: return KEY_s; |
a687059c | 3719 | case 'c': |
79072805 | 3720 | if (strEQ(d,"scalar")) return KEY_scalar; |
a687059c LW |
3721 | break; |
3722 | case 'e': | |
79072805 LW |
3723 | switch (len) { |
3724 | case 4: | |
a0d0e21e LW |
3725 | if (strEQ(d,"seek")) return -KEY_seek; |
3726 | if (strEQ(d,"send")) return -KEY_send; | |
79072805 LW |
3727 | break; |
3728 | case 5: | |
a0d0e21e | 3729 | if (strEQ(d,"semop")) return -KEY_semop; |
79072805 LW |
3730 | break; |
3731 | case 6: | |
a0d0e21e LW |
3732 | if (strEQ(d,"select")) return -KEY_select; |
3733 | if (strEQ(d,"semctl")) return -KEY_semctl; | |
3734 | if (strEQ(d,"semget")) return -KEY_semget; | |
79072805 LW |
3735 | break; |
3736 | case 7: | |
a0d0e21e LW |
3737 | if (strEQ(d,"setpgrp")) return -KEY_setpgrp; |
3738 | if (strEQ(d,"seekdir")) return -KEY_seekdir; | |
79072805 LW |
3739 | break; |
3740 | case 8: | |
a0d0e21e LW |
3741 | if (strEQ(d,"setpwent")) return -KEY_setpwent; |
3742 | if (strEQ(d,"setgrent")) return -KEY_setgrent; | |
79072805 LW |
3743 | break; |
3744 | case 9: | |
a0d0e21e | 3745 | if (strEQ(d,"setnetent")) return -KEY_setnetent; |
79072805 LW |
3746 | break; |
3747 | case 10: | |
a0d0e21e LW |
3748 | if (strEQ(d,"setsockopt")) return -KEY_setsockopt; |
3749 | if (strEQ(d,"sethostent")) return -KEY_sethostent; | |
3750 | if (strEQ(d,"setservent")) return -KEY_setservent; | |
79072805 LW |
3751 | break; |
3752 | case 11: | |
a0d0e21e LW |
3753 | if (strEQ(d,"setpriority")) return -KEY_setpriority; |
3754 | if (strEQ(d,"setprotoent")) return -KEY_setprotoent; | |
79072805 LW |
3755 | break; |
3756 | } | |
a687059c LW |
3757 | break; |
3758 | case 'h': | |
79072805 LW |
3759 | switch (len) { |
3760 | case 5: | |
3761 | if (strEQ(d,"shift")) return KEY_shift; | |
3762 | break; | |
3763 | case 6: | |
a0d0e21e LW |
3764 | if (strEQ(d,"shmctl")) return -KEY_shmctl; |
3765 | if (strEQ(d,"shmget")) return -KEY_shmget; | |
79072805 LW |
3766 | break; |
3767 | case 7: | |
a0d0e21e | 3768 | if (strEQ(d,"shmread")) return -KEY_shmread; |
79072805 LW |
3769 | break; |
3770 | case 8: | |
a0d0e21e LW |
3771 | if (strEQ(d,"shmwrite")) return -KEY_shmwrite; |
3772 | if (strEQ(d,"shutdown")) return -KEY_shutdown; | |
79072805 LW |
3773 | break; |
3774 | } | |
a687059c LW |
3775 | break; |
3776 | case 'i': | |
a0d0e21e | 3777 | if (strEQ(d,"sin")) return -KEY_sin; |
a687059c LW |
3778 | break; |
3779 | case 'l': | |
a0d0e21e | 3780 | if (strEQ(d,"sleep")) return -KEY_sleep; |
a687059c LW |
3781 | break; |
3782 | case 'o': | |
79072805 | 3783 | if (strEQ(d,"sort")) return KEY_sort; |
a0d0e21e LW |
3784 | if (strEQ(d,"socket")) return -KEY_socket; |
3785 | if (strEQ(d,"socketpair")) return -KEY_socketpair; | |
a687059c LW |
3786 | break; |
3787 | case 'p': | |
79072805 | 3788 | if (strEQ(d,"split")) return KEY_split; |
a0d0e21e | 3789 | if (strEQ(d,"sprintf")) return -KEY_sprintf; |
79072805 | 3790 | if (strEQ(d,"splice")) return KEY_splice; |
a687059c LW |
3791 | break; |
3792 | case 'q': | |
a0d0e21e | 3793 | if (strEQ(d,"sqrt")) return -KEY_sqrt; |
a687059c LW |
3794 | break; |
3795 | case 'r': | |
a0d0e21e | 3796 | if (strEQ(d,"srand")) return -KEY_srand; |
a687059c LW |
3797 | break; |
3798 | case 't': | |
a0d0e21e | 3799 | if (strEQ(d,"stat")) return -KEY_stat; |
79072805 | 3800 | if (strEQ(d,"study")) return KEY_study; |
a687059c LW |
3801 | break; |
3802 | case 'u': | |
a0d0e21e | 3803 | if (strEQ(d,"substr")) return -KEY_substr; |
79072805 | 3804 | if (strEQ(d,"sub")) return KEY_sub; |
a687059c LW |
3805 | break; |
3806 | case 'y': | |
79072805 LW |
3807 | switch (len) { |
3808 | case 6: | |
a0d0e21e | 3809 | if (strEQ(d,"system")) return -KEY_system; |
79072805 LW |
3810 | break; |
3811 | case 7: | |
a0d0e21e LW |
3812 | if (strEQ(d,"sysread")) return -KEY_sysread; |
3813 | if (strEQ(d,"symlink")) return -KEY_symlink; | |
3814 | if (strEQ(d,"syscall")) return -KEY_syscall; | |
79072805 LW |
3815 | break; |
3816 | case 8: | |
a0d0e21e | 3817 | if (strEQ(d,"syswrite")) return -KEY_syswrite; |
79072805 | 3818 | break; |
a687059c | 3819 | } |
a687059c LW |
3820 | break; |
3821 | } | |
3822 | break; | |
79072805 LW |
3823 | case 't': |
3824 | switch (len) { | |
3825 | case 2: | |
3826 | if (strEQ(d,"tr")) return KEY_tr; | |
3827 | break; | |
463ee0b2 LW |
3828 | case 3: |
3829 | if (strEQ(d,"tie")) return KEY_tie; | |
3830 | break; | |
79072805 | 3831 | case 4: |
a0d0e21e LW |
3832 | if (strEQ(d,"tell")) return -KEY_tell; |
3833 | if (strEQ(d,"time")) return -KEY_time; | |
79072805 LW |
3834 | break; |
3835 | case 5: | |
a0d0e21e | 3836 | if (strEQ(d,"times")) return -KEY_times; |
79072805 LW |
3837 | break; |
3838 | case 7: | |
a0d0e21e | 3839 | if (strEQ(d,"telldir")) return -KEY_telldir; |
79072805 LW |
3840 | break; |
3841 | case 8: | |
a0d0e21e | 3842 | if (strEQ(d,"truncate")) return -KEY_truncate; |
79072805 | 3843 | break; |
378cc40b | 3844 | } |
a687059c | 3845 | break; |
79072805 LW |
3846 | case 'u': |
3847 | switch (len) { | |
3848 | case 2: | |
a0d0e21e LW |
3849 | if (strEQ(d,"uc")) return -KEY_uc; |
3850 | break; | |
3851 | case 3: | |
3852 | if (strEQ(d,"use")) return KEY_use; | |
79072805 LW |
3853 | break; |
3854 | case 5: | |
3855 | if (strEQ(d,"undef")) return KEY_undef; | |
3856 | if (strEQ(d,"until")) return KEY_until; | |
463ee0b2 | 3857 | if (strEQ(d,"untie")) return KEY_untie; |
a0d0e21e LW |
3858 | if (strEQ(d,"utime")) return -KEY_utime; |
3859 | if (strEQ(d,"umask")) return -KEY_umask; | |
79072805 LW |
3860 | break; |
3861 | case 6: | |
3862 | if (strEQ(d,"unless")) return KEY_unless; | |
a0d0e21e LW |
3863 | if (strEQ(d,"unpack")) return -KEY_unpack; |
3864 | if (strEQ(d,"unlink")) return -KEY_unlink; | |
79072805 LW |
3865 | break; |
3866 | case 7: | |
3867 | if (strEQ(d,"unshift")) return KEY_unshift; | |
a0d0e21e | 3868 | if (strEQ(d,"ucfirst")) return -KEY_ucfirst; |
79072805 | 3869 | break; |
a687059c LW |
3870 | } |
3871 | break; | |
79072805 | 3872 | case 'v': |
a0d0e21e LW |
3873 | if (strEQ(d,"values")) return -KEY_values; |
3874 | if (strEQ(d,"vec")) return -KEY_vec; | |
a687059c | 3875 | break; |
79072805 LW |
3876 | case 'w': |
3877 | switch (len) { | |
3878 | case 4: | |
a0d0e21e LW |
3879 | if (strEQ(d,"warn")) return -KEY_warn; |
3880 | if (strEQ(d,"wait")) return -KEY_wait; | |
79072805 LW |
3881 | break; |
3882 | case 5: | |
3883 | if (strEQ(d,"while")) return KEY_while; | |
a0d0e21e | 3884 | if (strEQ(d,"write")) return -KEY_write; |
79072805 LW |
3885 | break; |
3886 | case 7: | |
a0d0e21e | 3887 | if (strEQ(d,"waitpid")) return -KEY_waitpid; |
79072805 LW |
3888 | break; |
3889 | case 9: | |
a0d0e21e | 3890 | if (strEQ(d,"wantarray")) return -KEY_wantarray; |
79072805 | 3891 | break; |
2f3197b3 | 3892 | } |
a687059c | 3893 | break; |
79072805 | 3894 | case 'x': |
a0d0e21e LW |
3895 | if (len == 1) return -KEY_x; |
3896 | if (strEQ(d,"xor")) return -KEY_xor; | |
a687059c | 3897 | break; |
79072805 LW |
3898 | case 'y': |
3899 | if (len == 1) return KEY_y; | |
3900 | break; | |
3901 | case 'z': | |
a687059c LW |
3902 | break; |
3903 | } | |
79072805 | 3904 | return 0; |
a687059c LW |
3905 | } |
3906 | ||
8990e307 | 3907 | static void |
2f3197b3 | 3908 | checkcomma(s,name,what) |
a687059c | 3909 | register char *s; |
2f3197b3 | 3910 | char *name; |
a687059c LW |
3911 | char *what; |
3912 | { | |
2f3197b3 LW |
3913 | char *w; |
3914 | ||
463ee0b2 | 3915 | if (dowarn && *s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
a0d0e21e LW |
3916 | int level = 1; |
3917 | for (w = s+2; *w && level; w++) { | |
3918 | if (*w == '(') | |
3919 | ++level; | |
3920 | else if (*w == ')') | |
3921 | --level; | |
3922 | } | |
3923 | if (*w) | |
3924 | for (; *w && isSPACE(*w); w++) ; | |
3925 | if (!*w || !strchr(";|})]oa!=", *w)) /* an advisory hack only... */ | |
2f3197b3 LW |
3926 | warn("%s (...) interpreted as function",name); |
3927 | } | |
3928 | while (s < bufend && isSPACE(*s)) | |
3929 | s++; | |
a687059c LW |
3930 | if (*s == '(') |
3931 | s++; | |
de3bb511 | 3932 | while (s < bufend && isSPACE(*s)) |
a687059c | 3933 | s++; |
79072805 | 3934 | if (isIDFIRST(*s)) { |
2f3197b3 | 3935 | w = s++; |
de3bb511 | 3936 | while (isALNUM(*s)) |
a687059c | 3937 | s++; |
de3bb511 | 3938 | while (s < bufend && isSPACE(*s)) |
a687059c | 3939 | s++; |
e929a76b | 3940 | if (*s == ',') { |
463ee0b2 | 3941 | int kw; |
e929a76b | 3942 | *s = '\0'; |
463ee0b2 | 3943 | kw = keyword(w, s - w); |
e929a76b | 3944 | *s = ','; |
463ee0b2 | 3945 | if (kw) |
e929a76b | 3946 | return; |
463ee0b2 LW |
3947 | croak("No comma allowed after %s", what); |
3948 | } | |
3949 | } | |
3950 | } | |
3951 | ||
8990e307 | 3952 | static char * |
463ee0b2 LW |
3953 | scan_word(s, dest, allow_package, slp) |
3954 | register char *s; | |
3955 | char *dest; | |
3956 | int allow_package; | |
3957 | STRLEN *slp; | |
3958 | { | |
3959 | register char *d = dest; | |
3960 | for (;;) { | |
3961 | if (isALNUM(*s)) | |
3962 | *d++ = *s++; | |
3963 | else if (*s == '\'' && allow_package && isIDFIRST(s[1])) { | |
3964 | *d++ = ':'; | |
3965 | *d++ = ':'; | |
3966 | s++; | |
3967 | } | |
3968 | else if (*s == ':' && s[1] == ':' && allow_package && isIDFIRST(s[2])) { | |
3969 | *d++ = *s++; | |
3970 | *d++ = *s++; | |
3971 | } | |
3972 | else { | |
3973 | *d = '\0'; | |
3974 | *slp = d - dest; | |
3975 | return s; | |
e929a76b | 3976 | } |
378cc40b LW |
3977 | } |
3978 | } | |
3979 | ||
8990e307 | 3980 | static char * |
79072805 | 3981 | scan_ident(s,send,dest,ck_uni) |
378cc40b | 3982 | register char *s; |
a687059c | 3983 | register char *send; |
378cc40b | 3984 | char *dest; |
79072805 | 3985 | I32 ck_uni; |
378cc40b LW |
3986 | { |
3987 | register char *d; | |
79072805 | 3988 | char *bracket = 0; |
748a9306 | 3989 | char funny = *s++; |
378cc40b | 3990 | |
79072805 LW |
3991 | if (lex_brackets == 0) |
3992 | lex_fakebrack = 0; | |
a0d0e21e LW |
3993 | if (isSPACE(*s)) |
3994 | s = skipspace(s); | |
378cc40b | 3995 | d = dest; |
de3bb511 LW |
3996 | if (isDIGIT(*s)) { |
3997 | while (isDIGIT(*s)) | |
378cc40b LW |
3998 | *d++ = *s++; |
3999 | } | |
4000 | else { | |
463ee0b2 LW |
4001 | for (;;) { |
4002 | if (isALNUM(*s)) | |
4003 | *d++ = *s++; | |
4004 | else if (*s == '\'' && isIDFIRST(s[1])) { | |
4005 | *d++ = ':'; | |
4006 | *d++ = ':'; | |
4007 | s++; | |
4008 | } | |
a0d0e21e | 4009 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
4010 | *d++ = *s++; |
4011 | *d++ = *s++; | |
4012 | } | |
4013 | else | |
4014 | break; | |
4015 | } | |
378cc40b LW |
4016 | } |
4017 | *d = '\0'; | |
4018 | d = dest; | |
79072805 LW |
4019 | if (*d) { |
4020 | if (lex_state != LEX_NORMAL) | |
4021 | lex_state = LEX_INTERPENDMAYBE; | |
4022 | return s; | |
378cc40b | 4023 | } |
748a9306 LW |
4024 | if (*s == '$' && s[1] && |
4025 | (isALPHA(s[1]) || strchr("$_{", s[1]) || strnEQ(s+1,"::",2)) ) | |
a0d0e21e | 4026 | return s; |
79072805 LW |
4027 | if (*s == '{') { |
4028 | bracket = s; | |
4029 | s++; | |
4030 | } | |
4031 | else if (ck_uni) | |
4032 | check_uni(); | |
93a17b20 | 4033 | if (s < send) |
79072805 LW |
4034 | *d = *s++; |
4035 | d[1] = '\0'; | |
748a9306 | 4036 | if (*d == '^' && *s && (isUPPER(*s) || strchr("[\\]^_?", *s))) { |
fe14fcc3 | 4037 | *d = *s++ ^ 64; |
de3bb511 | 4038 | } |
79072805 | 4039 | if (bracket) { |
748a9306 LW |
4040 | if (isSPACE(s[-1])) { |
4041 | while (s < send && (*s == ' ' || *s == '\t')) s++; | |
4042 | *d = *s; | |
4043 | } | |
79072805 LW |
4044 | if (isALPHA(*d) || *d == '_') { |
4045 | d++; | |
748a9306 | 4046 | while (isALNUM(*s) || *s == ':') |
79072805 LW |
4047 | *d++ = *s++; |
4048 | *d = '\0'; | |
748a9306 LW |
4049 | while (s < send && (*s == ' ' || *s == '\t')) s++; |
4050 | if ((*s == '[' || *s == '{')) { | |
4051 | if (dowarn && keyword(dest, d - dest)) { | |
4052 | char *brack = *s == '[' ? "[...]" : "{...}"; | |
4053 | warn("Ambiguous use of %c{%s%s} resolved to %c%s%s", | |
4054 | funny, dest, brack, funny, dest, brack); | |
4055 | } | |
4056 | lex_fakebrack = lex_brackets+1; | |
79072805 | 4057 | bracket++; |
a0d0e21e | 4058 | lex_brackstack[lex_brackets++] = XOPERATOR; |
79072805 LW |
4059 | return s; |
4060 | } | |
4061 | } | |
4062 | if (*s == '}') { | |
4063 | s++; | |
4064 | if (lex_state == LEX_INTERPNORMAL && !lex_brackets) | |
4065 | lex_state = LEX_INTERPEND; | |
748a9306 LW |
4066 | if (funny == '#') |
4067 | funny = '@'; | |
4068 | if (dowarn && | |
4069 | (keyword(dest, d - dest) || perl_get_cv(dest, FALSE))) | |
4070 | warn("Ambiguous use of %c{%s} resolved to %c%s", | |
4071 | funny, dest, funny, dest); | |
79072805 LW |
4072 | } |
4073 | else { | |
4074 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 4075 | *dest = '\0'; |
79072805 LW |
4076 | } |
4077 | } | |
4078 | else if (lex_state == LEX_INTERPNORMAL && !lex_brackets && !intuit_more(s)) | |
4079 | lex_state = LEX_INTERPEND; | |
378cc40b LW |
4080 | return s; |
4081 | } | |
4082 | ||
a0d0e21e LW |
4083 | void pmflag(pmfl,ch) |
4084 | U16* pmfl; | |
4085 | int ch; | |
4086 | { | |
4087 | if (ch == 'i') { | |
4088 | sawi = TRUE; | |
4089 | *pmfl |= PMf_FOLD; | |
4090 | } | |
4091 | else if (ch == 'g') | |
4092 | *pmfl |= PMf_GLOBAL; | |
4093 | else if (ch == 'o') | |
4094 | *pmfl |= PMf_KEEP; | |
4095 | else if (ch == 'm') | |
4096 | *pmfl |= PMf_MULTILINE; | |
4097 | else if (ch == 's') | |
4098 | *pmfl |= PMf_SINGLELINE; | |
4099 | else if (ch == 'x') | |
4100 | *pmfl |= PMf_EXTENDED; | |
4101 | } | |
378cc40b | 4102 | |
8990e307 | 4103 | static char * |
79072805 LW |
4104 | scan_pat(start) |
4105 | char *start; | |
378cc40b | 4106 | { |
79072805 LW |
4107 | PMOP *pm; |
4108 | char *s; | |
378cc40b | 4109 | |
79072805 LW |
4110 | s = scan_str(start); |
4111 | if (!s) { | |
4112 | if (lex_stuff) | |
8990e307 | 4113 | SvREFCNT_dec(lex_stuff); |
79072805 | 4114 | lex_stuff = Nullsv; |
463ee0b2 | 4115 | croak("Search pattern not terminated"); |
378cc40b | 4116 | } |
79072805 | 4117 | pm = (PMOP*)newPMOP(OP_MATCH, 0); |
a0d0e21e | 4118 | if (multi_open == '?') |
79072805 LW |
4119 | pm->op_pmflags |= PMf_ONCE; |
4120 | ||
a0d0e21e LW |
4121 | while (*s && strchr("iogmsx", *s)) |
4122 | pmflag(&pm->op_pmflags,*s++); | |
79072805 LW |
4123 | |
4124 | lex_op = (OP*)pm; | |
4125 | yylval.ival = OP_MATCH; | |
378cc40b LW |
4126 | return s; |
4127 | } | |
4128 | ||
8990e307 | 4129 | static char * |
79072805 | 4130 | scan_subst(start) |
2f3197b3 | 4131 | char *start; |
79072805 | 4132 | { |
a0d0e21e | 4133 | register char *s; |
79072805 LW |
4134 | register PMOP *pm; |
4135 | I32 es = 0; | |
4136 | ||
79072805 LW |
4137 | yylval.ival = OP_NULL; |
4138 | ||
a0d0e21e | 4139 | s = scan_str(start); |
79072805 LW |
4140 | |
4141 | if (!s) { | |
4142 | if (lex_stuff) | |
8990e307 | 4143 | SvREFCNT_dec(lex_stuff); |
79072805 | 4144 | lex_stuff = Nullsv; |
463ee0b2 | 4145 | croak("Substitution pattern not terminated"); |
a687059c | 4146 | } |
79072805 | 4147 | |
a0d0e21e | 4148 | if (s[-1] == multi_open) |
79072805 LW |
4149 | s--; |
4150 | ||
4151 | s = scan_str(s); | |
4152 | if (!s) { | |
4153 | if (lex_stuff) | |
8990e307 | 4154 | SvREFCNT_dec(lex_stuff); |
79072805 LW |
4155 | lex_stuff = Nullsv; |
4156 | if (lex_repl) | |
8990e307 | 4157 | SvREFCNT_dec(lex_repl); |
79072805 | 4158 | lex_repl = Nullsv; |
463ee0b2 | 4159 | croak("Substitution replacement not terminated"); |
a687059c | 4160 | } |
2f3197b3 | 4161 | |
79072805 | 4162 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
a0d0e21e | 4163 | while (*s && strchr("iogmsex", *s)) { |
a687059c LW |
4164 | if (*s == 'e') { |
4165 | s++; | |
2f3197b3 | 4166 | es++; |
a687059c | 4167 | } |
a0d0e21e LW |
4168 | else |
4169 | pmflag(&pm->op_pmflags,*s++); | |
378cc40b | 4170 | } |
79072805 LW |
4171 | |
4172 | if (es) { | |
4173 | SV *repl; | |
4174 | pm->op_pmflags |= PMf_EVAL; | |
463ee0b2 LW |
4175 | repl = newSVpv("",0); |
4176 | while (es-- > 0) | |
a0d0e21e | 4177 | sv_catpv(repl, es ? "eval " : "do "); |
79072805 LW |
4178 | sv_catpvn(repl, "{ ", 2); |
4179 | sv_catsv(repl, lex_repl); | |
4180 | sv_catpvn(repl, " };", 2); | |
4181 | SvCOMPILED_on(repl); | |
8990e307 | 4182 | SvREFCNT_dec(lex_repl); |
79072805 | 4183 | lex_repl = repl; |
378cc40b | 4184 | } |
79072805 LW |
4185 | |
4186 | lex_op = (OP*)pm; | |
4187 | yylval.ival = OP_SUBST; | |
378cc40b LW |
4188 | return s; |
4189 | } | |
4190 | ||
1462b684 | 4191 | void |
79072805 LW |
4192 | hoistmust(pm) |
4193 | register PMOP *pm; | |
378cc40b | 4194 | { |
79072805 LW |
4195 | if (!pm->op_pmshort && pm->op_pmregexp->regstart && |
4196 | (!pm->op_pmregexp->regmust || pm->op_pmregexp->reganch & ROPT_ANCH) | |
d48672a2 | 4197 | ) { |
79072805 LW |
4198 | if (!(pm->op_pmregexp->reganch & ROPT_ANCH)) |
4199 | pm->op_pmflags |= PMf_SCANFIRST; | |
4200 | else if (pm->op_pmflags & PMf_FOLD) | |
1462b684 | 4201 | return; |
8990e307 | 4202 | pm->op_pmshort = SvREFCNT_inc(pm->op_pmregexp->regstart); |
748a9306 | 4203 | pm->op_pmslen = SvCUR(pm->op_pmshort); |
d48672a2 | 4204 | } |
79072805 LW |
4205 | else if (pm->op_pmregexp->regmust) {/* is there a better short-circuit? */ |
4206 | if (pm->op_pmshort && | |
4207 | sv_eq(pm->op_pmshort,pm->op_pmregexp->regmust)) | |
a687059c | 4208 | { |
79072805 | 4209 | if (pm->op_pmflags & PMf_SCANFIRST) { |
8990e307 | 4210 | SvREFCNT_dec(pm->op_pmshort); |
79072805 | 4211 | pm->op_pmshort = Nullsv; |
378cc40b LW |
4212 | } |
4213 | else { | |
8990e307 | 4214 | SvREFCNT_dec(pm->op_pmregexp->regmust); |
79072805 | 4215 | pm->op_pmregexp->regmust = Nullsv; |
378cc40b LW |
4216 | return; |
4217 | } | |
4218 | } | |
79072805 LW |
4219 | if (!pm->op_pmshort || /* promote the better string */ |
4220 | ((pm->op_pmflags & PMf_SCANFIRST) && | |
4221 | (SvCUR(pm->op_pmshort) < SvCUR(pm->op_pmregexp->regmust)) )){ | |
8990e307 | 4222 | SvREFCNT_dec(pm->op_pmshort); /* ok if null */ |
79072805 | 4223 | pm->op_pmshort = pm->op_pmregexp->regmust; |
748a9306 | 4224 | pm->op_pmslen = SvCUR(pm->op_pmshort); |
79072805 LW |
4225 | pm->op_pmregexp->regmust = Nullsv; |
4226 | pm->op_pmflags |= PMf_SCANFIRST; | |
378cc40b LW |
4227 | } |
4228 | } | |
4229 | } | |
4230 | ||
8990e307 | 4231 | static char * |
79072805 | 4232 | scan_trans(start) |
2f3197b3 | 4233 | char *start; |
378cc40b | 4234 | { |
a0d0e21e | 4235 | register char* s; |
79072805 LW |
4236 | OP *op; |
4237 | short *tbl; | |
4238 | I32 squash; | |
4239 | I32 delete; | |
4240 | I32 complement; | |
4241 | ||
4242 | yylval.ival = OP_NULL; | |
4243 | ||
a0d0e21e | 4244 | s = scan_str(start); |
79072805 LW |
4245 | if (!s) { |
4246 | if (lex_stuff) | |
8990e307 | 4247 | SvREFCNT_dec(lex_stuff); |
79072805 | 4248 | lex_stuff = Nullsv; |
463ee0b2 | 4249 | croak("Translation pattern not terminated"); |
a687059c | 4250 | } |
a0d0e21e | 4251 | if (s[-1] == multi_open) |
2f3197b3 LW |
4252 | s--; |
4253 | ||
93a17b20 | 4254 | s = scan_str(s); |
79072805 LW |
4255 | if (!s) { |
4256 | if (lex_stuff) | |
8990e307 | 4257 | SvREFCNT_dec(lex_stuff); |
79072805 LW |
4258 | lex_stuff = Nullsv; |
4259 | if (lex_repl) | |
8990e307 | 4260 | SvREFCNT_dec(lex_repl); |
79072805 | 4261 | lex_repl = Nullsv; |
463ee0b2 | 4262 | croak("Translation replacement not terminated"); |
a687059c | 4263 | } |
79072805 LW |
4264 | |
4265 | New(803,tbl,256,short); | |
4266 | op = newPVOP(OP_TRANS, 0, (char*)tbl); | |
2f3197b3 | 4267 | |
395c3793 LW |
4268 | complement = delete = squash = 0; |
4269 | while (*s == 'c' || *s == 'd' || *s == 's') { | |
4270 | if (*s == 'c') | |
79072805 | 4271 | complement = OPpTRANS_COMPLEMENT; |
395c3793 | 4272 | else if (*s == 'd') |
79072805 | 4273 | delete = OPpTRANS_DELETE; |
395c3793 | 4274 | else |
79072805 | 4275 | squash = OPpTRANS_SQUASH; |
395c3793 LW |
4276 | s++; |
4277 | } | |
79072805 LW |
4278 | op->op_private = delete|squash|complement; |
4279 | ||
4280 | lex_op = op; | |
4281 | yylval.ival = OP_TRANS; | |
4282 | return s; | |
4283 | } | |
4284 | ||
8990e307 | 4285 | static char * |
79072805 LW |
4286 | scan_heredoc(s) |
4287 | register char *s; | |
4288 | { | |
4289 | SV *herewas; | |
4290 | I32 op_type = OP_SCALAR; | |
4291 | I32 len; | |
4292 | SV *tmpstr; | |
4293 | char term; | |
4294 | register char *d; | |
4295 | ||
4296 | s += 2; | |
4297 | d = tokenbuf; | |
4298 | if (!rsfp) | |
4299 | *d++ = '\n'; | |
93a17b20 | 4300 | if (*s && strchr("`'\"",*s)) { |
79072805 LW |
4301 | term = *s++; |
4302 | s = cpytill(d,s,bufend,term,&len); | |
4303 | if (s < bufend) | |
4304 | s++; | |
4305 | d += len; | |
4306 | } | |
4307 | else { | |
4308 | if (*s == '\\') | |
4309 | s++, term = '\''; | |
4310 | else | |
4311 | term = '"'; | |
4312 | while (isALNUM(*s)) | |
4313 | *d++ = *s++; | |
4314 | } /* assuming tokenbuf won't clobber */ | |
4315 | *d++ = '\n'; | |
4316 | *d = '\0'; | |
4317 | len = d - tokenbuf; | |
4318 | d = "\n"; | |
4319 | if (rsfp || !(d=ninstr(s,bufend,d,d+1))) | |
4320 | herewas = newSVpv(s,bufend-s); | |
4321 | else | |
4322 | s--, herewas = newSVpv(s,d-s); | |
4323 | s += SvCUR(herewas); | |
748a9306 LW |
4324 | |
4325 | tmpstr = NEWSV(87,80); | |
4326 | sv_upgrade(tmpstr, SVt_PVIV); | |
4327 | if (term == '\'') { | |
79072805 | 4328 | op_type = OP_CONST; |
748a9306 LW |
4329 | SvIVX(tmpstr) = -1; |
4330 | } | |
4331 | else if (term == '`') { | |
79072805 | 4332 | op_type = OP_BACKTICK; |
748a9306 LW |
4333 | SvIVX(tmpstr) = '\\'; |
4334 | } | |
79072805 LW |
4335 | |
4336 | CLINE; | |
4337 | multi_start = curcop->cop_line; | |
4338 | multi_open = multi_close = '<'; | |
79072805 LW |
4339 | term = *tokenbuf; |
4340 | if (!rsfp) { | |
4341 | d = s; | |
4342 | while (s < bufend && | |
4343 | (*s != term || bcmp(s,tokenbuf,len) != 0) ) { | |
4344 | if (*s++ == '\n') | |
4345 | curcop->cop_line++; | |
4346 | } | |
4347 | if (s >= bufend) { | |
4348 | curcop->cop_line = multi_start; | |
8990e307 | 4349 | missingterm(tokenbuf); |
79072805 LW |
4350 | } |
4351 | sv_setpvn(tmpstr,d+1,s-d); | |
4352 | s += len - 1; | |
4353 | sv_catpvn(herewas,s,bufend-s); | |
4354 | sv_setsv(linestr,herewas); | |
463ee0b2 LW |
4355 | oldoldbufptr = oldbufptr = bufptr = s = SvPVX(linestr); |
4356 | bufend = SvPVX(linestr) + SvCUR(linestr); | |
79072805 LW |
4357 | } |
4358 | else | |
4359 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
4360 | while (s >= bufend) { /* multiple line string? */ | |
4361 | if (!rsfp || | |
16d20bd9 | 4362 | !(oldoldbufptr = oldbufptr = s = filter_gets(linestr, rsfp))) { |
79072805 | 4363 | curcop->cop_line = multi_start; |
8990e307 | 4364 | missingterm(tokenbuf); |
79072805 LW |
4365 | } |
4366 | curcop->cop_line++; | |
8990e307 | 4367 | if (perldb && curstash != debstash) { |
79072805 LW |
4368 | SV *sv = NEWSV(88,0); |
4369 | ||
93a17b20 | 4370 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
4371 | sv_setsv(sv,linestr); |
4372 | av_store(GvAV(curcop->cop_filegv), | |
4373 | (I32)curcop->cop_line,sv); | |
4374 | } | |
463ee0b2 | 4375 | bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 LW |
4376 | if (*s == term && bcmp(s,tokenbuf,len) == 0) { |
4377 | s = bufend - 1; | |
4378 | *s = ' '; | |
4379 | sv_catsv(linestr,herewas); | |
463ee0b2 | 4380 | bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 LW |
4381 | } |
4382 | else { | |
4383 | s = bufend; | |
4384 | sv_catsv(tmpstr,linestr); | |
395c3793 LW |
4385 | } |
4386 | } | |
79072805 LW |
4387 | multi_end = curcop->cop_line; |
4388 | s++; | |
4389 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { | |
4390 | SvLEN_set(tmpstr, SvCUR(tmpstr) + 1); | |
463ee0b2 | 4391 | Renew(SvPVX(tmpstr), SvLEN(tmpstr), char); |
79072805 | 4392 | } |
8990e307 | 4393 | SvREFCNT_dec(herewas); |
79072805 LW |
4394 | lex_stuff = tmpstr; |
4395 | yylval.ival = op_type; | |
4396 | return s; | |
4397 | } | |
4398 | ||
8990e307 | 4399 | static char * |
79072805 LW |
4400 | scan_inputsymbol(start) |
4401 | char *start; | |
4402 | { | |
4403 | register char *s = start; | |
4404 | register char *d; | |
4405 | I32 len; | |
4406 | ||
4407 | d = tokenbuf; | |
4408 | s = cpytill(d, s+1, bufend, '>', &len); | |
4409 | if (s < bufend) | |
4410 | s++; | |
4411 | else | |
463ee0b2 | 4412 | croak("Unterminated <> operator"); |
79072805 LW |
4413 | |
4414 | if (*d == '$') d++; | |
a0d0e21e | 4415 | while (*d && (isALNUM(*d) || *d == '\'' || *d == ':')) |
79072805 LW |
4416 | d++; |
4417 | if (d - tokenbuf != len) { | |
4418 | yylval.ival = OP_GLOB; | |
4419 | set_csh(); | |
4420 | s = scan_str(start); | |
4421 | if (!s) | |
463ee0b2 | 4422 | croak("Glob not terminated"); |
79072805 LW |
4423 | return s; |
4424 | } | |
395c3793 | 4425 | else { |
79072805 LW |
4426 | d = tokenbuf; |
4427 | if (!len) | |
4428 | (void)strcpy(d,"ARGV"); | |
4429 | if (*d == '$') { | |
a0d0e21e LW |
4430 | I32 tmp; |
4431 | if (tmp = pad_findmy(d)) { | |
4432 | OP *op = newOP(OP_PADSV, 0); | |
4433 | op->op_targ = tmp; | |
4434 | lex_op = (OP*)newUNOP(OP_READLINE, 0, newUNOP(OP_RV2GV, 0, op)); | |
4435 | } | |
4436 | else { | |
4437 | GV *gv = gv_fetchpv(d+1,TRUE, SVt_PV); | |
4438 | lex_op = (OP*)newUNOP(OP_READLINE, 0, | |
4439 | newUNOP(OP_RV2GV, 0, | |
4440 | newUNOP(OP_RV2SV, 0, | |
4441 | newGVOP(OP_GV, 0, gv)))); | |
4442 | } | |
79072805 LW |
4443 | yylval.ival = OP_NULL; |
4444 | } | |
4445 | else { | |
85e6fe83 | 4446 | GV *gv = gv_fetchpv(d,TRUE, SVt_PVIO); |
79072805 LW |
4447 | lex_op = (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); |
4448 | yylval.ival = OP_NULL; | |
4449 | } | |
4450 | } | |
4451 | return s; | |
4452 | } | |
4453 | ||
8990e307 | 4454 | static char * |
79072805 LW |
4455 | scan_str(start) |
4456 | char *start; | |
4457 | { | |
93a17b20 | 4458 | SV *sv; |
79072805 LW |
4459 | char *tmps; |
4460 | register char *s = start; | |
a0d0e21e | 4461 | register char term; |
93a17b20 LW |
4462 | register char *to; |
4463 | I32 brackets = 1; | |
79072805 | 4464 | |
a0d0e21e LW |
4465 | if (isSPACE(*s)) |
4466 | s = skipspace(s); | |
79072805 | 4467 | CLINE; |
a0d0e21e | 4468 | term = *s; |
79072805 LW |
4469 | multi_start = curcop->cop_line; |
4470 | multi_open = term; | |
93a17b20 | 4471 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
79072805 LW |
4472 | term = tmps[5]; |
4473 | multi_close = term; | |
4474 | ||
93a17b20 | 4475 | sv = NEWSV(87,80); |
ed6116ce LW |
4476 | sv_upgrade(sv, SVt_PVIV); |
4477 | SvIVX(sv) = term; | |
a0d0e21e | 4478 | (void)SvPOK_only(sv); /* validate pointer */ |
93a17b20 LW |
4479 | s++; |
4480 | for (;;) { | |
4481 | SvGROW(sv, SvCUR(sv) + (bufend - s) + 1); | |
463ee0b2 | 4482 | to = SvPVX(sv)+SvCUR(sv); |
93a17b20 LW |
4483 | if (multi_open == multi_close) { |
4484 | for (; s < bufend; s++,to++) { | |
463ee0b2 LW |
4485 | if (*s == '\n' && !rsfp) |
4486 | curcop->cop_line++; | |
a0d0e21e LW |
4487 | if (*s == '\\' && s+1 < bufend && term != '\\') { |
4488 | if (s[1] == term) | |
4489 | s++; | |
4490 | else | |
4491 | *to++ = *s++; | |
4492 | } | |
93a17b20 LW |
4493 | else if (*s == term) |
4494 | break; | |
4495 | *to = *s; | |
4496 | } | |
4497 | } | |
4498 | else { | |
4499 | for (; s < bufend; s++,to++) { | |
463ee0b2 LW |
4500 | if (*s == '\n' && !rsfp) |
4501 | curcop->cop_line++; | |
a0d0e21e LW |
4502 | if (*s == '\\' && s+1 < bufend && term != '\\') { |
4503 | if (s[1] == term) | |
4504 | s++; | |
4505 | else | |
4506 | *to++ = *s++; | |
4507 | } | |
93a17b20 LW |
4508 | else if (*s == term && --brackets <= 0) |
4509 | break; | |
4510 | else if (*s == multi_open) | |
4511 | brackets++; | |
4512 | *to = *s; | |
4513 | } | |
4514 | } | |
4515 | *to = '\0'; | |
463ee0b2 | 4516 | SvCUR_set(sv, to - SvPVX(sv)); |
93a17b20 LW |
4517 | |
4518 | if (s < bufend) break; /* string ends on this line? */ | |
79072805 | 4519 | |
79072805 | 4520 | if (!rsfp || |
16d20bd9 | 4521 | !(oldoldbufptr = oldbufptr = s = filter_gets(linestr, rsfp))) { |
79072805 LW |
4522 | curcop->cop_line = multi_start; |
4523 | return Nullch; | |
4524 | } | |
4525 | curcop->cop_line++; | |
8990e307 | 4526 | if (perldb && curstash != debstash) { |
79072805 LW |
4527 | SV *sv = NEWSV(88,0); |
4528 | ||
93a17b20 | 4529 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
4530 | sv_setsv(sv,linestr); |
4531 | av_store(GvAV(curcop->cop_filegv), | |
4532 | (I32)curcop->cop_line, sv); | |
395c3793 | 4533 | } |
463ee0b2 | 4534 | bufend = SvPVX(linestr) + SvCUR(linestr); |
378cc40b | 4535 | } |
79072805 LW |
4536 | multi_end = curcop->cop_line; |
4537 | s++; | |
93a17b20 LW |
4538 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
4539 | SvLEN_set(sv, SvCUR(sv) + 1); | |
463ee0b2 | 4540 | Renew(SvPVX(sv), SvLEN(sv), char); |
79072805 LW |
4541 | } |
4542 | if (lex_stuff) | |
93a17b20 | 4543 | lex_repl = sv; |
79072805 | 4544 | else |
93a17b20 | 4545 | lex_stuff = sv; |
378cc40b LW |
4546 | return s; |
4547 | } | |
4548 | ||
4549 | char * | |
79072805 | 4550 | scan_num(start) |
2f3197b3 | 4551 | char *start; |
378cc40b | 4552 | { |
2f3197b3 | 4553 | register char *s = start; |
378cc40b | 4554 | register char *d; |
79072805 LW |
4555 | I32 tryi32; |
4556 | double value; | |
4557 | SV *sv; | |
4558 | I32 floatit; | |
93a17b20 | 4559 | char *lastub = 0; |
378cc40b LW |
4560 | |
4561 | switch (*s) { | |
79072805 | 4562 | default: |
463ee0b2 | 4563 | croak("panic: scan_num"); |
378cc40b LW |
4564 | case '0': |
4565 | { | |
79072805 LW |
4566 | U32 i; |
4567 | I32 shift; | |
378cc40b | 4568 | |
378cc40b LW |
4569 | if (s[1] == 'x') { |
4570 | shift = 4; | |
4571 | s += 2; | |
4572 | } | |
4573 | else if (s[1] == '.') | |
4574 | goto decimal; | |
4575 | else | |
4576 | shift = 3; | |
4577 | i = 0; | |
4578 | for (;;) { | |
4579 | switch (*s) { | |
4580 | default: | |
4581 | goto out; | |
de3bb511 LW |
4582 | case '_': |
4583 | s++; | |
4584 | break; | |
378cc40b LW |
4585 | case '8': case '9': |
4586 | if (shift != 4) | |
a687059c | 4587 | yyerror("Illegal octal digit"); |
378cc40b LW |
4588 | /* FALL THROUGH */ |
4589 | case '0': case '1': case '2': case '3': case '4': | |
4590 | case '5': case '6': case '7': | |
4591 | i <<= shift; | |
4592 | i += *s++ & 15; | |
4593 | break; | |
4594 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': | |
4595 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
4596 | if (shift != 4) | |
4597 | goto out; | |
4598 | i <<= 4; | |
4599 | i += (*s++ & 7) + 9; | |
4600 | break; | |
4601 | } | |
4602 | } | |
4603 | out: | |
79072805 LW |
4604 | sv = NEWSV(92,0); |
4605 | tryi32 = i; | |
4606 | if (tryi32 == i && tryi32 >= 0) | |
4607 | sv_setiv(sv,tryi32); | |
4608 | else | |
4609 | sv_setnv(sv,(double)i); | |
378cc40b LW |
4610 | } |
4611 | break; | |
4612 | case '1': case '2': case '3': case '4': case '5': | |
4613 | case '6': case '7': case '8': case '9': case '.': | |
4614 | decimal: | |
378cc40b | 4615 | d = tokenbuf; |
79072805 | 4616 | floatit = FALSE; |
de3bb511 | 4617 | while (isDIGIT(*s) || *s == '_') { |
93a17b20 LW |
4618 | if (*s == '_') { |
4619 | if (dowarn && lastub && s - lastub != 3) | |
8990e307 | 4620 | warn("Misplaced _ in number"); |
93a17b20 LW |
4621 | lastub = ++s; |
4622 | } | |
378cc40b LW |
4623 | else |
4624 | *d++ = *s++; | |
4625 | } | |
93a17b20 | 4626 | if (dowarn && lastub && s - lastub != 3) |
8990e307 | 4627 | warn("Misplaced _ in number"); |
2f3197b3 | 4628 | if (*s == '.' && s[1] != '.') { |
79072805 | 4629 | floatit = TRUE; |
378cc40b | 4630 | *d++ = *s++; |
de3bb511 | 4631 | while (isDIGIT(*s) || *s == '_') { |
378cc40b LW |
4632 | if (*s == '_') |
4633 | s++; | |
4634 | else | |
4635 | *d++ = *s++; | |
4636 | } | |
4637 | } | |
93a17b20 | 4638 | if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) { |
79072805 LW |
4639 | floatit = TRUE; |
4640 | s++; | |
4641 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ | |
378cc40b LW |
4642 | if (*s == '+' || *s == '-') |
4643 | *d++ = *s++; | |
de3bb511 | 4644 | while (isDIGIT(*s)) |
378cc40b LW |
4645 | *d++ = *s++; |
4646 | } | |
4647 | *d = '\0'; | |
79072805 LW |
4648 | sv = NEWSV(92,0); |
4649 | value = atof(tokenbuf); | |
ed6116ce | 4650 | tryi32 = I_32(value); |
79072805 LW |
4651 | if (!floatit && (double)tryi32 == value) |
4652 | sv_setiv(sv,tryi32); | |
2f3197b3 | 4653 | else |
79072805 | 4654 | sv_setnv(sv,value); |
378cc40b | 4655 | break; |
79072805 | 4656 | } |
a687059c | 4657 | |
79072805 | 4658 | yylval.opval = newSVOP(OP_CONST, 0, sv); |
a687059c | 4659 | |
378cc40b LW |
4660 | return s; |
4661 | } | |
4662 | ||
8990e307 | 4663 | static char * |
79072805 LW |
4664 | scan_formline(s) |
4665 | register char *s; | |
378cc40b | 4666 | { |
79072805 | 4667 | register char *eol; |
378cc40b | 4668 | register char *t; |
a0d0e21e | 4669 | SV *stuff = newSVpv("",0); |
79072805 | 4670 | bool needargs = FALSE; |
378cc40b | 4671 | |
79072805 | 4672 | while (!needargs) { |
85e6fe83 | 4673 | if (*s == '.' || *s == '}') { |
79072805 LW |
4674 | /*SUPPRESS 530*/ |
4675 | for (t = s+1; *t == ' ' || *t == '\t'; t++) ; | |
4676 | if (*t == '\n') | |
4677 | break; | |
4678 | } | |
0f85fab0 | 4679 | if (in_eval && !rsfp) { |
93a17b20 | 4680 | eol = strchr(s,'\n'); |
0f85fab0 LW |
4681 | if (!eol++) |
4682 | eol = bufend; | |
4683 | } | |
4684 | else | |
463ee0b2 | 4685 | eol = bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 | 4686 | if (*s != '#') { |
a0d0e21e LW |
4687 | for (t = s; t < eol; t++) { |
4688 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
4689 | needargs = FALSE; | |
4690 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 4691 | } |
a0d0e21e LW |
4692 | if (*t == '@' || *t == '^') |
4693 | needargs = TRUE; | |
378cc40b | 4694 | } |
a0d0e21e | 4695 | sv_catpvn(stuff, s, eol-s); |
79072805 LW |
4696 | } |
4697 | s = eol; | |
4698 | if (rsfp) { | |
16d20bd9 | 4699 | s = filter_gets(linestr, rsfp); |
463ee0b2 | 4700 | oldoldbufptr = oldbufptr = bufptr = SvPVX(linestr); |
a0d0e21e | 4701 | bufend = bufptr + SvCUR(linestr); |
79072805 LW |
4702 | if (!s) { |
4703 | s = bufptr; | |
4704 | yyerror("Format not terminated"); | |
378cc40b LW |
4705 | break; |
4706 | } | |
378cc40b | 4707 | } |
463ee0b2 | 4708 | incline(s); |
79072805 | 4709 | } |
a0d0e21e LW |
4710 | enough: |
4711 | if (SvCUR(stuff)) { | |
463ee0b2 | 4712 | expect = XTERM; |
79072805 | 4713 | if (needargs) { |
a0d0e21e | 4714 | lex_state = LEX_NORMAL; |
79072805 LW |
4715 | nextval[nexttoke].ival = 0; |
4716 | force_next(','); | |
4717 | } | |
a0d0e21e LW |
4718 | else |
4719 | lex_state = LEX_FORMLINE; | |
79072805 LW |
4720 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
4721 | force_next(THING); | |
4722 | nextval[nexttoke].ival = OP_FORMLINE; | |
4723 | force_next(LSTOP); | |
378cc40b | 4724 | } |
79072805 | 4725 | else { |
8990e307 | 4726 | SvREFCNT_dec(stuff); |
85e6fe83 | 4727 | lex_formbrack = 0; |
79072805 LW |
4728 | bufptr = s; |
4729 | } | |
4730 | return s; | |
378cc40b | 4731 | } |
a687059c | 4732 | |
2f3197b3 | 4733 | static void |
a687059c LW |
4734 | set_csh() |
4735 | { | |
ae986130 LW |
4736 | #ifdef CSH |
4737 | if (!cshlen) | |
4738 | cshlen = strlen(cshname); | |
4739 | #endif | |
a687059c | 4740 | } |
463ee0b2 LW |
4741 | |
4742 | int | |
8990e307 LW |
4743 | start_subparse() |
4744 | { | |
4745 | int oldsavestack_ix = savestack_ix; | |
748a9306 LW |
4746 | CV* outsidecv = compcv; |
4747 | AV* comppadlist; | |
8990e307 | 4748 | |
e9a444f0 LW |
4749 | if (compcv) { |
4750 | assert(SvTYPE(compcv) == SVt_PVCV); | |
4751 | } | |
8990e307 LW |
4752 | save_I32(&subline); |
4753 | save_item(subname); | |
4754 | SAVEINT(padix); | |
4755 | SAVESPTR(curpad); | |
4756 | SAVESPTR(comppad); | |
4757 | SAVESPTR(comppad_name); | |
748a9306 | 4758 | SAVESPTR(compcv); |
8990e307 LW |
4759 | SAVEINT(comppad_name_fill); |
4760 | SAVEINT(min_intro_pending); | |
4761 | SAVEINT(max_intro_pending); | |
748a9306 LW |
4762 | SAVEINT(pad_reset_pending); |
4763 | ||
4764 | compcv = (CV*)NEWSV(1104,0); | |
4765 | sv_upgrade((SV *)compcv, SVt_PVCV); | |
4766 | ||
8990e307 | 4767 | comppad = newAV(); |
a0d0e21e | 4768 | SAVEFREESV((SV*)comppad); |
8990e307 | 4769 | comppad_name = newAV(); |
a0d0e21e | 4770 | SAVEFREESV((SV*)comppad_name); |
8990e307 LW |
4771 | comppad_name_fill = 0; |
4772 | min_intro_pending = 0; | |
4773 | av_push(comppad, Nullsv); | |
4774 | curpad = AvARRAY(comppad); | |
4775 | padix = 0; | |
8990e307 | 4776 | subline = curcop->cop_line; |
748a9306 LW |
4777 | |
4778 | comppadlist = newAV(); | |
4779 | AvREAL_off(comppadlist); | |
4780 | av_store(comppadlist, 0, SvREFCNT_inc((SV*)comppad_name)); | |
4781 | av_store(comppadlist, 1, SvREFCNT_inc((SV*)comppad)); | |
4782 | ||
4783 | CvPADLIST(compcv) = comppadlist; | |
e9a444f0 | 4784 | CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc((SV*)outsidecv); |
748a9306 | 4785 | |
8990e307 LW |
4786 | return oldsavestack_ix; |
4787 | } | |
4788 | ||
4789 | int | |
4790 | yywarn(s) | |
4791 | char *s; | |
4792 | { | |
4793 | --error_count; | |
748a9306 LW |
4794 | in_eval |= 2; |
4795 | yyerror(s); | |
4796 | in_eval &= ~2; | |
4797 | return 0; | |
8990e307 LW |
4798 | } |
4799 | ||
4800 | int | |
463ee0b2 LW |
4801 | yyerror(s) |
4802 | char *s; | |
4803 | { | |
4804 | char tmpbuf[258]; | |
463ee0b2 LW |
4805 | char *tname = tmpbuf; |
4806 | ||
4807 | if (bufptr > oldoldbufptr && bufptr - oldoldbufptr < 200 && | |
4808 | oldoldbufptr != oldbufptr && oldbufptr != bufptr) { | |
4809 | while (isSPACE(*oldoldbufptr)) | |
4810 | oldoldbufptr++; | |
a0d0e21e | 4811 | sprintf(tname,"near \"%.*s\"",bufptr - oldoldbufptr, oldoldbufptr); |
463ee0b2 LW |
4812 | } |
4813 | else if (bufptr > oldbufptr && bufptr - oldbufptr < 200 && | |
4814 | oldbufptr != bufptr) { | |
4815 | while (isSPACE(*oldbufptr)) | |
4816 | oldbufptr++; | |
a0d0e21e | 4817 | sprintf(tname,"near \"%.*s\"",bufptr - oldbufptr, oldbufptr); |
463ee0b2 LW |
4818 | } |
4819 | else if (yychar > 255) | |
4820 | tname = "next token ???"; | |
4821 | else if (!yychar || (yychar == ';' && !rsfp)) | |
4822 | (void)strcpy(tname,"at EOF"); | |
4823 | else if ((yychar & 127) == 127) { | |
4824 | if (lex_state == LEX_NORMAL || | |
4825 | (lex_state == LEX_KNOWNEXT && lex_defer == LEX_NORMAL)) | |
4826 | (void)strcpy(tname,"at end of line"); | |
4827 | else | |
a0d0e21e | 4828 | (void)strcpy(tname,"within string"); |
463ee0b2 LW |
4829 | } |
4830 | else if (yychar < 32) | |
4831 | (void)sprintf(tname,"next char ^%c",yychar+64); | |
4832 | else | |
4833 | (void)sprintf(tname,"next char %c",yychar); | |
4834 | (void)sprintf(buf, "%s at %s line %d, %s\n", | |
4835 | s,SvPVX(GvSV(curcop->cop_filegv)),curcop->cop_line,tname); | |
a0d0e21e | 4836 | if (curcop->cop_line == multi_end && multi_start < multi_end) { |
463ee0b2 | 4837 | sprintf(buf+strlen(buf), |
a0d0e21e LW |
4838 | " (Might be a runaway multi-line %c%c string starting on line %ld)\n", |
4839 | multi_open,multi_close,(long)multi_start); | |
4840 | multi_end = 0; | |
4841 | } | |
748a9306 LW |
4842 | if (in_eval & 2) |
4843 | warn("%s",buf); | |
4844 | else if (in_eval) | |
85e6fe83 | 4845 | sv_catpv(GvSV(gv_fetchpv("@",TRUE, SVt_PV)),buf); |
463ee0b2 LW |
4846 | else |
4847 | fputs(buf,stderr); | |
4848 | if (++error_count >= 10) | |
4849 | croak("%s has too many errors.\n", | |
4850 | SvPVX(GvSV(curcop->cop_filegv))); | |
4851 | return 0; | |
4852 | } |