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)); | |
89bfa8cd | 19 | static char *force_version _((char *start)); |
a0d0e21e LW |
20 | static char *force_word _((char *start, int token, int check_keyword, int allow_pack, int allow_tick)); |
21 | static SV *q _((SV *sv)); | |
22 | static char *scan_const _((char *start)); | |
23 | static char *scan_formline _((char *s)); | |
24 | static char *scan_heredoc _((char *s)); | |
25 | static char *scan_ident _((char *s, char *send, char *dest, I32 ck_uni)); | |
26 | static char *scan_inputsymbol _((char *start)); | |
27 | static char *scan_pat _((char *start)); | |
28 | static char *scan_str _((char *start)); | |
29 | static char *scan_subst _((char *start)); | |
30 | static char *scan_trans _((char *start)); | |
31 | static char *scan_word _((char *s, char *dest, int allow_package, STRLEN *slp)); | |
32 | static char *skipspace _((char *s)); | |
33 | static void checkcomma _((char *s, char *name, char *what)); | |
34 | static void force_ident _((char *s, int kind)); | |
35 | static void incline _((char *s)); | |
36 | static int intuit_method _((char *s, GV *gv)); | |
37 | static int intuit_more _((char *s)); | |
38 | static I32 lop _((I32 f, expectation x, char *s)); | |
39 | static void missingterm _((char *s)); | |
40 | static void no_op _((char *what, char *s)); | |
41 | static void set_csh _((void)); | |
42 | static I32 sublex_done _((void)); | |
55497cff | 43 | static I32 sublex_push _((void)); |
a0d0e21e LW |
44 | static I32 sublex_start _((void)); |
45 | #ifdef CRIPPLED_CC | |
46 | static int uni _((I32 f, char *s)); | |
47 | #endif | |
fd049845 | 48 | static char * filter_gets _((SV *sv, PerlIO *fp, STRLEN append)); |
6d5fb7e3 | 49 | static void restore_rsfp _((void *f)); |
2f3197b3 | 50 | |
fd049845 | 51 | static char *linestart; /* beg. of most recently read line */ |
52 | ||
bbce6d69 | 53 | static char pending_ident; /* pending identifier lookup */ |
54 | ||
55497cff | 55 | static struct { |
56 | I32 super_state; /* lexer state to save */ | |
57 | I32 sub_inwhat; /* "lex_inwhat" to use */ | |
58 | OP *sub_op; /* "lex_op" to use */ | |
59 | } sublex_info; | |
60 | ||
79072805 LW |
61 | /* The following are arranged oddly so that the guard on the switch statement |
62 | * can get by with a single comparison (if the compiler is smart enough). | |
63 | */ | |
64 | ||
55497cff | 65 | #define LEX_NORMAL 10 |
66 | #define LEX_INTERPNORMAL 9 | |
67 | #define LEX_INTERPCASEMOD 8 | |
68 | #define LEX_INTERPPUSH 7 | |
69 | #define LEX_INTERPSTART 6 | |
70 | #define LEX_INTERPEND 5 | |
71 | #define LEX_INTERPENDMAYBE 4 | |
72 | #define LEX_INTERPCONCAT 3 | |
73 | #define LEX_INTERPCONST 2 | |
74 | #define LEX_FORMLINE 1 | |
75 | #define LEX_KNOWNEXT 0 | |
79072805 | 76 | |
395c3793 LW |
77 | #ifdef I_FCNTL |
78 | #include <fcntl.h> | |
79 | #endif | |
fe14fcc3 LW |
80 | #ifdef I_SYS_FILE |
81 | #include <sys/file.h> | |
82 | #endif | |
395c3793 | 83 | |
a790bc05 | 84 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
85 | #ifdef I_UNISTD | |
86 | # include <unistd.h> /* Needed for execv() */ | |
87 | #endif | |
88 | ||
89 | ||
79072805 LW |
90 | #ifdef ff_next |
91 | #undef ff_next | |
d48672a2 LW |
92 | #endif |
93 | ||
79072805 | 94 | #include "keywords.h" |
fe14fcc3 | 95 | |
ae986130 LW |
96 | #ifdef CLINE |
97 | #undef CLINE | |
98 | #endif | |
79072805 | 99 | #define CLINE (copline = (curcop->cop_line < copline ? curcop->cop_line : copline)) |
378cc40b | 100 | |
79072805 LW |
101 | #define TOKEN(retval) return (bufptr = s,(int)retval) |
102 | #define OPERATOR(retval) return (expect = XTERM,bufptr = s,(int)retval) | |
a0d0e21e | 103 | #define AOPERATOR(retval) return ao((expect = XTERM,bufptr = s,(int)retval)) |
79072805 | 104 | #define PREBLOCK(retval) return (expect = XBLOCK,bufptr = s,(int)retval) |
a0d0e21e | 105 | #define PRETERMBLOCK(retval) return (expect = XTERMBLOCK,bufptr = s,(int)retval) |
79072805 LW |
106 | #define PREREF(retval) return (expect = XREF,bufptr = s,(int)retval) |
107 | #define TERM(retval) return (CLINE, expect = XOPERATOR,bufptr = s,(int)retval) | |
463ee0b2 | 108 | #define LOOPX(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LOOPEX) |
79072805 LW |
109 | #define FTST(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)UNIOP) |
110 | #define FUN0(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC0) | |
111 | #define FUN1(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC1) | |
a0d0e21e LW |
112 | #define BOop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITOROP)) |
113 | #define BAop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITANDOP)) | |
114 | #define SHop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)SHIFTOP)) | |
115 | #define PWop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)POWOP)) | |
79072805 | 116 | #define PMop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)MATCHOP) |
a0d0e21e LW |
117 | #define Aop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)ADDOP)) |
118 | #define Mop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)MULOP)) | |
79072805 LW |
119 | #define Eop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)EQOP) |
120 | #define Rop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)RELOP) | |
2f3197b3 | 121 | |
a687059c LW |
122 | /* This bit of chicanery makes a unary function followed by |
123 | * a parenthesis into a function with one argument, highest precedence. | |
124 | */ | |
2f3197b3 | 125 | #define UNI(f) return(yylval.ival = f, \ |
79072805 | 126 | expect = XTERM, \ |
2f3197b3 LW |
127 | bufptr = s, \ |
128 | last_uni = oldbufptr, \ | |
a0d0e21e | 129 | last_lop_op = f, \ |
a687059c LW |
130 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) ) |
131 | ||
79072805 LW |
132 | #define UNIBRACK(f) return(yylval.ival = f, \ |
133 | bufptr = s, \ | |
134 | last_uni = oldbufptr, \ | |
135 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) ) | |
136 | ||
9f68db38 | 137 | /* grandfather return to old style */ |
79072805 LW |
138 | #define OLDLOP(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LSTOP) |
139 | ||
a0d0e21e LW |
140 | static int |
141 | ao(toketype) | |
142 | int toketype; | |
143 | { | |
144 | if (*bufptr == '=') { | |
145 | bufptr++; | |
146 | if (toketype == ANDAND) | |
147 | yylval.ival = OP_ANDASSIGN; | |
148 | else if (toketype == OROR) | |
149 | yylval.ival = OP_ORASSIGN; | |
150 | toketype = ASSIGNOP; | |
151 | } | |
152 | return toketype; | |
153 | } | |
154 | ||
8990e307 LW |
155 | static void |
156 | no_op(what, s) | |
463ee0b2 | 157 | char *what; |
8990e307 | 158 | char *s; |
463ee0b2 | 159 | { |
8990e307 | 160 | char tmpbuf[128]; |
748a9306 | 161 | char *oldbp = bufptr; |
fd049845 | 162 | bool is_first = (oldbufptr == linestart); |
8990e307 LW |
163 | bufptr = s; |
164 | sprintf(tmpbuf, "%s found where operator expected", what); | |
165 | yywarn(tmpbuf); | |
748a9306 | 166 | if (is_first) |
a0d0e21e | 167 | warn("\t(Missing semicolon on previous line?)\n"); |
748a9306 LW |
168 | else if (oldoldbufptr && isIDFIRST(*oldoldbufptr)) { |
169 | char *t; | |
170 | for (t = oldoldbufptr; *t && (isALNUM(*t) || *t == ':'); t++) ; | |
171 | if (t < bufptr && isSPACE(*t)) | |
172 | warn("\t(Do you need to predeclare %.*s?)\n", | |
173 | t - oldoldbufptr, oldoldbufptr); | |
174 | ||
175 | } | |
176 | else | |
177 | warn("\t(Missing operator before %.*s?)\n", s - oldbp, oldbp); | |
178 | bufptr = oldbp; | |
8990e307 LW |
179 | } |
180 | ||
181 | static void | |
182 | missingterm(s) | |
183 | char *s; | |
184 | { | |
185 | char tmpbuf[3]; | |
186 | char q; | |
187 | if (s) { | |
188 | char *nl = strrchr(s,'\n'); | |
189 | if (nl) | |
190 | *nl = '\0'; | |
191 | } | |
192 | else if (multi_close < 32 || multi_close == 127) { | |
193 | *tmpbuf = '^'; | |
bbce6d69 | 194 | tmpbuf[1] = toCTRL(multi_close); |
8990e307 LW |
195 | s = "\\n"; |
196 | tmpbuf[2] = '\0'; | |
197 | s = tmpbuf; | |
198 | } | |
199 | else { | |
200 | *tmpbuf = multi_close; | |
201 | tmpbuf[1] = '\0'; | |
202 | s = tmpbuf; | |
203 | } | |
204 | q = strchr(s,'"') ? '\'' : '"'; | |
205 | croak("Can't find string terminator %c%s%c anywhere before EOF",q,s,q); | |
463ee0b2 | 206 | } |
79072805 LW |
207 | |
208 | void | |
a0d0e21e LW |
209 | deprecate(s) |
210 | char *s; | |
211 | { | |
212 | if (dowarn) | |
213 | warn("Use of %s is deprecated", s); | |
214 | } | |
215 | ||
216 | static void | |
217 | depcom() | |
218 | { | |
219 | deprecate("comma-less variable list"); | |
220 | } | |
221 | ||
222 | void | |
8990e307 LW |
223 | lex_start(line) |
224 | SV *line; | |
79072805 | 225 | { |
8990e307 LW |
226 | char *s; |
227 | STRLEN len; | |
228 | ||
55497cff | 229 | SAVEI32(lex_dojoin); |
230 | SAVEI32(lex_brackets); | |
231 | SAVEI32(lex_fakebrack); | |
232 | SAVEI32(lex_casemods); | |
233 | SAVEI32(lex_starts); | |
234 | SAVEI32(lex_state); | |
a0d0e21e | 235 | SAVESPTR(lex_inpat); |
55497cff | 236 | SAVEI32(lex_inwhat); |
237 | SAVEI16(curcop->cop_line); | |
85e6fe83 LW |
238 | SAVEPPTR(bufptr); |
239 | SAVEPPTR(bufend); | |
240 | SAVEPPTR(oldbufptr); | |
241 | SAVEPPTR(oldoldbufptr); | |
fd049845 | 242 | SAVEPPTR(linestart); |
463ee0b2 | 243 | SAVESPTR(linestr); |
85e6fe83 | 244 | SAVEPPTR(lex_brackstack); |
a0d0e21e | 245 | SAVEPPTR(lex_casestack); |
6d5fb7e3 | 246 | SAVEDESTRUCTOR(restore_rsfp, rsfp); |
463ee0b2 | 247 | |
79072805 LW |
248 | lex_state = LEX_NORMAL; |
249 | lex_defer = 0; | |
8990e307 | 250 | expect = XSTATE; |
79072805 LW |
251 | lex_brackets = 0; |
252 | lex_fakebrack = 0; | |
8990e307 | 253 | New(899, lex_brackstack, 120, char); |
a0d0e21e | 254 | New(899, lex_casestack, 12, char); |
8990e307 | 255 | SAVEFREEPV(lex_brackstack); |
a0d0e21e | 256 | SAVEFREEPV(lex_casestack); |
79072805 | 257 | lex_casemods = 0; |
a0d0e21e | 258 | *lex_casestack = '\0'; |
79072805 LW |
259 | lex_dojoin = 0; |
260 | lex_starts = 0; | |
261 | if (lex_stuff) | |
8990e307 | 262 | SvREFCNT_dec(lex_stuff); |
79072805 LW |
263 | lex_stuff = Nullsv; |
264 | if (lex_repl) | |
8990e307 | 265 | SvREFCNT_dec(lex_repl); |
79072805 LW |
266 | lex_repl = Nullsv; |
267 | lex_inpat = 0; | |
268 | lex_inwhat = 0; | |
8990e307 LW |
269 | linestr = line; |
270 | if (SvREADONLY(linestr)) | |
271 | linestr = sv_2mortal(newSVsv(linestr)); | |
272 | s = SvPV(linestr, len); | |
273 | if (len && s[len-1] != ';') { | |
a0d0e21e | 274 | if (!(SvFLAGS(linestr) & SVs_TEMP)) |
8990e307 LW |
275 | linestr = sv_2mortal(newSVsv(linestr)); |
276 | sv_catpvn(linestr, "\n;", 2); | |
277 | } | |
278 | SvTEMP_off(linestr); | |
fd049845 | 279 | oldoldbufptr = oldbufptr = bufptr = linestart = SvPVX(linestr); |
79072805 | 280 | bufend = bufptr + SvCUR(linestr); |
c07a80fd | 281 | SvREFCNT_dec(rs); |
282 | rs = newSVpv("\n", 1); | |
8990e307 | 283 | rsfp = 0; |
79072805 | 284 | } |
a687059c | 285 | |
463ee0b2 LW |
286 | void |
287 | lex_end() | |
288 | { | |
6ca21dd3 | 289 | doextract = FALSE; |
463ee0b2 LW |
290 | } |
291 | ||
292 | static void | |
6d5fb7e3 CS |
293 | restore_rsfp(f) |
294 | void *f; | |
295 | { | |
760ac839 | 296 | PerlIO *fp = (PerlIO*)f; |
6d5fb7e3 | 297 | |
760ac839 LW |
298 | if (rsfp == PerlIO_stdin()) |
299 | PerlIO_clearerr(rsfp); | |
a5f75d66 | 300 | else if (rsfp && (rsfp != fp)) |
760ac839 | 301 | PerlIO_close(rsfp); |
6d5fb7e3 CS |
302 | rsfp = fp; |
303 | } | |
304 | ||
305 | static void | |
463ee0b2 LW |
306 | incline(s) |
307 | char *s; | |
308 | { | |
309 | char *t; | |
310 | char *n; | |
311 | char ch; | |
312 | int sawline = 0; | |
313 | ||
314 | curcop->cop_line++; | |
315 | if (*s++ != '#') | |
316 | return; | |
317 | while (*s == ' ' || *s == '\t') s++; | |
318 | if (strnEQ(s, "line ", 5)) { | |
319 | s += 5; | |
320 | sawline = 1; | |
321 | } | |
322 | if (!isDIGIT(*s)) | |
323 | return; | |
324 | n = s; | |
325 | while (isDIGIT(*s)) | |
326 | s++; | |
327 | while (*s == ' ' || *s == '\t') | |
328 | s++; | |
329 | if (*s == '"' && (t = strchr(s+1, '"'))) | |
330 | s++; | |
331 | else { | |
332 | if (!sawline) | |
333 | return; /* false alarm */ | |
334 | for (t = s; !isSPACE(*t); t++) ; | |
335 | } | |
336 | ch = *t; | |
337 | *t = '\0'; | |
338 | if (t - s > 0) | |
339 | curcop->cop_filegv = gv_fetchfile(s); | |
340 | else | |
341 | curcop->cop_filegv = gv_fetchfile(origfilename); | |
342 | *t = ch; | |
343 | curcop->cop_line = atoi(n)-1; | |
344 | } | |
345 | ||
8990e307 | 346 | static char * |
a687059c LW |
347 | skipspace(s) |
348 | register char *s; | |
349 | { | |
85e6fe83 | 350 | if (lex_formbrack && lex_brackets <= lex_formbrack) { |
463ee0b2 LW |
351 | while (s < bufend && (*s == ' ' || *s == '\t')) |
352 | s++; | |
353 | return s; | |
354 | } | |
355 | for (;;) { | |
fd049845 | 356 | STRLEN prevlen; |
463ee0b2 LW |
357 | while (s < bufend && isSPACE(*s)) |
358 | s++; | |
359 | if (s < bufend && *s == '#') { | |
360 | while (s < bufend && *s != '\n') | |
361 | s++; | |
362 | if (s < bufend) | |
363 | s++; | |
364 | } | |
a0d0e21e | 365 | if (s < bufend || !rsfp || lex_state != LEX_NORMAL) |
463ee0b2 | 366 | return s; |
fd049845 | 367 | if ((s = filter_gets(linestr, rsfp, (prevlen = SvCUR(linestr)))) == Nullch) { |
a0d0e21e LW |
368 | if (minus_n || minus_p) { |
369 | sv_setpv(linestr,minus_p ? ";}continue{print" : ""); | |
370 | sv_catpv(linestr,";}"); | |
371 | minus_n = minus_p = 0; | |
372 | } | |
373 | else | |
374 | sv_setpv(linestr,";"); | |
fd049845 | 375 | oldoldbufptr = oldbufptr = bufptr = s = linestart = SvPVX(linestr); |
a0d0e21e LW |
376 | bufend = SvPVX(linestr) + SvCUR(linestr); |
377 | if (preprocess && !in_eval) | |
8990e307 | 378 | (void)my_pclose(rsfp); |
760ac839 LW |
379 | else if ((PerlIO*)rsfp == PerlIO_stdin()) |
380 | PerlIO_clearerr(rsfp); | |
8990e307 | 381 | else |
760ac839 | 382 | (void)PerlIO_close(rsfp); |
8990e307 | 383 | rsfp = Nullfp; |
463ee0b2 LW |
384 | return s; |
385 | } | |
fd049845 | 386 | linestart = bufptr = s + prevlen; |
387 | bufend = s + SvCUR(linestr); | |
388 | s = bufptr; | |
a0d0e21e | 389 | incline(s); |
8990e307 LW |
390 | if (perldb && curstash != debstash) { |
391 | SV *sv = NEWSV(85,0); | |
392 | ||
393 | sv_upgrade(sv, SVt_PVMG); | |
fd049845 | 394 | sv_setpvn(sv,bufptr,bufend-bufptr); |
8990e307 LW |
395 | av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv); |
396 | } | |
463ee0b2 | 397 | } |
a687059c | 398 | } |
378cc40b | 399 | |
8990e307 | 400 | static void |
2f3197b3 LW |
401 | check_uni() { |
402 | char *s; | |
403 | char ch; | |
a0d0e21e | 404 | char *t; |
2f3197b3 LW |
405 | |
406 | if (oldoldbufptr != last_uni) | |
407 | return; | |
408 | while (isSPACE(*last_uni)) | |
409 | last_uni++; | |
e334a159 | 410 | for (s = last_uni; isALNUM(*s) || *s == '-'; s++) ; |
a0d0e21e LW |
411 | if ((t = strchr(s, '(')) && t < bufptr) |
412 | return; | |
2f3197b3 LW |
413 | ch = *s; |
414 | *s = '\0'; | |
415 | warn("Warning: Use of \"%s\" without parens is ambiguous", last_uni); | |
416 | *s = ch; | |
417 | } | |
418 | ||
ffed7fef LW |
419 | #ifdef CRIPPLED_CC |
420 | ||
421 | #undef UNI | |
ffed7fef | 422 | #define UNI(f) return uni(f,s) |
ffed7fef | 423 | |
8990e307 | 424 | static int |
ffed7fef | 425 | uni(f,s) |
79072805 | 426 | I32 f; |
ffed7fef LW |
427 | char *s; |
428 | { | |
429 | yylval.ival = f; | |
79072805 | 430 | expect = XTERM; |
ffed7fef | 431 | bufptr = s; |
2f3197b3 | 432 | last_uni = oldbufptr; |
a0d0e21e | 433 | last_lop_op = f; |
ffed7fef LW |
434 | if (*s == '(') |
435 | return FUNC1; | |
436 | s = skipspace(s); | |
437 | if (*s == '(') | |
438 | return FUNC1; | |
439 | else | |
440 | return UNIOP; | |
441 | } | |
442 | ||
a0d0e21e LW |
443 | #endif /* CRIPPLED_CC */ |
444 | ||
445 | #define LOP(f,x) return lop(f,x,s) | |
446 | ||
8990e307 | 447 | static I32 |
f86702cc | 448 | lop |
449 | #ifdef CAN_PROTOTYPE | |
450 | (I32 f, expectation x, char *s) | |
451 | #else | |
452 | (f,x,s) | |
79072805 | 453 | I32 f; |
a0d0e21e | 454 | expectation x; |
ffed7fef | 455 | char *s; |
f86702cc | 456 | #endif /* CAN_PROTOTYPE */ |
ffed7fef | 457 | { |
79072805 | 458 | yylval.ival = f; |
35c8bce7 | 459 | CLINE; |
a0d0e21e | 460 | expect = x; |
79072805 | 461 | bufptr = s; |
8990e307 LW |
462 | last_lop = oldbufptr; |
463 | last_lop_op = f; | |
a0d0e21e LW |
464 | if (nexttoke) |
465 | return LSTOP; | |
79072805 LW |
466 | if (*s == '(') |
467 | return FUNC; | |
468 | s = skipspace(s); | |
469 | if (*s == '(') | |
470 | return FUNC; | |
471 | else | |
472 | return LSTOP; | |
473 | } | |
474 | ||
8990e307 | 475 | static void |
79072805 LW |
476 | force_next(type) |
477 | I32 type; | |
478 | { | |
479 | nexttype[nexttoke] = type; | |
480 | nexttoke++; | |
481 | if (lex_state != LEX_KNOWNEXT) { | |
482 | lex_defer = lex_state; | |
463ee0b2 | 483 | lex_expect = expect; |
79072805 LW |
484 | lex_state = LEX_KNOWNEXT; |
485 | } | |
486 | } | |
487 | ||
8990e307 | 488 | static char * |
a0d0e21e | 489 | force_word(start,token,check_keyword,allow_pack,allow_tick) |
463ee0b2 | 490 | register char *start; |
79072805 | 491 | int token; |
463ee0b2 | 492 | int check_keyword; |
a0d0e21e | 493 | int allow_pack; |
463ee0b2 | 494 | int allow_tick; |
79072805 | 495 | { |
463ee0b2 LW |
496 | register char *s; |
497 | STRLEN len; | |
498 | ||
499 | start = skipspace(start); | |
500 | s = start; | |
a0d0e21e LW |
501 | if (isIDFIRST(*s) || |
502 | (allow_pack && *s == ':') || | |
503 | (allow_tick && *s == '\'') ) | |
504 | { | |
505 | s = scan_word(s, tokenbuf, allow_pack, &len); | |
463ee0b2 LW |
506 | if (check_keyword && keyword(tokenbuf, len)) |
507 | return start; | |
508 | if (token == METHOD) { | |
509 | s = skipspace(s); | |
510 | if (*s == '(') | |
511 | expect = XTERM; | |
512 | else { | |
513 | expect = XOPERATOR; | |
514 | force_next(')'); | |
515 | force_next('('); | |
516 | } | |
79072805 | 517 | } |
463ee0b2 | 518 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST,0, newSVpv(tokenbuf,0)); |
8990e307 | 519 | nextval[nexttoke].opval->op_private |= OPpCONST_BARE; |
79072805 LW |
520 | force_next(token); |
521 | } | |
522 | return s; | |
523 | } | |
524 | ||
8990e307 | 525 | static void |
a0d0e21e | 526 | force_ident(s, kind) |
79072805 | 527 | register char *s; |
a0d0e21e | 528 | int kind; |
79072805 LW |
529 | { |
530 | if (s && *s) { | |
748a9306 LW |
531 | OP* op = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0)); |
532 | nextval[nexttoke].opval = op; | |
79072805 | 533 | force_next(WORD); |
748a9306 LW |
534 | if (kind) { |
535 | op->op_private = OPpCONST_ENTERED; | |
55497cff | 536 | /* XXX see note in pp_entereval() for why we forgo typo |
537 | warnings if the symbol must be introduced in an eval. | |
538 | GSAR 96-10-12 */ | |
539 | gv_fetchpv(s, in_eval ? GV_ADDMULTI : TRUE, | |
a0d0e21e LW |
540 | kind == '$' ? SVt_PV : |
541 | kind == '@' ? SVt_PVAV : | |
542 | kind == '%' ? SVt_PVHV : | |
543 | SVt_PVGV | |
544 | ); | |
748a9306 | 545 | } |
79072805 LW |
546 | } |
547 | } | |
548 | ||
89bfa8cd | 549 | static char * |
550 | force_version(s) | |
551 | char *s; | |
552 | { | |
553 | OP *version = Nullop; | |
554 | ||
555 | s = skipspace(s); | |
556 | ||
557 | /* default VERSION number -- GBARR */ | |
558 | ||
559 | if(isDIGIT(*s)) { | |
560 | char *d; | |
561 | int c; | |
55497cff | 562 | for( d=s, c = 1; isDIGIT(*d) || *d == '_' || (*d == '.' && c--); d++); |
89bfa8cd | 563 | if((*d == ';' || isSPACE(*d)) && *(skipspace(d)) != ',') { |
564 | s = scan_num(s); | |
565 | /* real VERSION number -- GBARR */ | |
566 | version = yylval.opval; | |
567 | } | |
568 | } | |
569 | ||
570 | /* NOTE: The parser sees the package name and the VERSION swapped */ | |
571 | nextval[nexttoke].opval = version; | |
572 | force_next(WORD); | |
573 | ||
574 | return (s); | |
575 | } | |
576 | ||
8990e307 | 577 | static SV * |
79072805 LW |
578 | q(sv) |
579 | SV *sv; | |
580 | { | |
581 | register char *s; | |
582 | register char *send; | |
583 | register char *d; | |
463ee0b2 | 584 | STRLEN len; |
79072805 LW |
585 | |
586 | if (!SvLEN(sv)) | |
587 | return sv; | |
588 | ||
a0d0e21e | 589 | s = SvPV_force(sv, len); |
748a9306 LW |
590 | if (SvIVX(sv) == -1) |
591 | return sv; | |
463ee0b2 | 592 | send = s + len; |
79072805 LW |
593 | while (s < send && *s != '\\') |
594 | s++; | |
595 | if (s == send) | |
596 | return sv; | |
597 | d = s; | |
79072805 LW |
598 | while (s < send) { |
599 | if (*s == '\\') { | |
a0d0e21e | 600 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
601 | s++; /* all that, just for this */ |
602 | } | |
603 | *d++ = *s++; | |
604 | } | |
605 | *d = '\0'; | |
463ee0b2 | 606 | SvCUR_set(sv, d - SvPVX(sv)); |
79072805 LW |
607 | |
608 | return sv; | |
609 | } | |
610 | ||
8990e307 | 611 | static I32 |
79072805 LW |
612 | sublex_start() |
613 | { | |
614 | register I32 op_type = yylval.ival; | |
79072805 LW |
615 | |
616 | if (op_type == OP_NULL) { | |
617 | yylval.opval = lex_op; | |
618 | lex_op = Nullop; | |
619 | return THING; | |
620 | } | |
621 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
622 | yylval.opval = (OP*)newSVOP(op_type, 0, q(lex_stuff)); | |
623 | lex_stuff = Nullsv; | |
624 | return THING; | |
625 | } | |
626 | ||
55497cff | 627 | sublex_info.super_state = lex_state; |
628 | sublex_info.sub_inwhat = op_type; | |
629 | sublex_info.sub_op = lex_op; | |
630 | lex_state = LEX_INTERPPUSH; | |
631 | ||
632 | expect = XTERM; | |
633 | if (lex_op) { | |
634 | yylval.opval = lex_op; | |
635 | lex_op = Nullop; | |
636 | return PMFUNC; | |
637 | } | |
638 | else | |
639 | return FUNC; | |
640 | } | |
641 | ||
642 | static I32 | |
643 | sublex_push() | |
644 | { | |
79072805 | 645 | push_scope(); |
55497cff | 646 | |
647 | lex_state = sublex_info.super_state; | |
648 | SAVEI32(lex_dojoin); | |
649 | SAVEI32(lex_brackets); | |
650 | SAVEI32(lex_fakebrack); | |
651 | SAVEI32(lex_casemods); | |
652 | SAVEI32(lex_starts); | |
653 | SAVEI32(lex_state); | |
a0d0e21e | 654 | SAVESPTR(lex_inpat); |
55497cff | 655 | SAVEI32(lex_inwhat); |
656 | SAVEI16(curcop->cop_line); | |
85e6fe83 LW |
657 | SAVEPPTR(bufptr); |
658 | SAVEPPTR(oldbufptr); | |
659 | SAVEPPTR(oldoldbufptr); | |
fd049845 | 660 | SAVEPPTR(linestart); |
79072805 | 661 | SAVESPTR(linestr); |
85e6fe83 | 662 | SAVEPPTR(lex_brackstack); |
a0d0e21e | 663 | SAVEPPTR(lex_casestack); |
79072805 LW |
664 | |
665 | linestr = lex_stuff; | |
666 | lex_stuff = Nullsv; | |
667 | ||
fd049845 | 668 | bufend = bufptr = oldbufptr = oldoldbufptr = linestart = SvPVX(linestr); |
79072805 | 669 | bufend += SvCUR(linestr); |
8990e307 | 670 | SAVEFREESV(linestr); |
79072805 LW |
671 | |
672 | lex_dojoin = FALSE; | |
673 | lex_brackets = 0; | |
674 | lex_fakebrack = 0; | |
8990e307 | 675 | New(899, lex_brackstack, 120, char); |
a0d0e21e | 676 | New(899, lex_casestack, 12, char); |
8990e307 | 677 | SAVEFREEPV(lex_brackstack); |
a0d0e21e | 678 | SAVEFREEPV(lex_casestack); |
79072805 | 679 | lex_casemods = 0; |
a0d0e21e | 680 | *lex_casestack = '\0'; |
79072805 LW |
681 | lex_starts = 0; |
682 | lex_state = LEX_INTERPCONCAT; | |
683 | curcop->cop_line = multi_start; | |
684 | ||
55497cff | 685 | lex_inwhat = sublex_info.sub_inwhat; |
686 | if (lex_inwhat == OP_MATCH || lex_inwhat == OP_SUBST) | |
687 | lex_inpat = sublex_info.sub_op; | |
79072805 | 688 | else |
55497cff | 689 | lex_inpat = Nullop; |
79072805 | 690 | |
55497cff | 691 | return '('; |
79072805 LW |
692 | } |
693 | ||
8990e307 | 694 | static I32 |
79072805 LW |
695 | sublex_done() |
696 | { | |
697 | if (!lex_starts++) { | |
698 | expect = XOPERATOR; | |
93a17b20 | 699 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv("",0)); |
79072805 LW |
700 | return THING; |
701 | } | |
702 | ||
703 | if (lex_casemods) { /* oops, we've got some unbalanced parens */ | |
704 | lex_state = LEX_INTERPCASEMOD; | |
705 | return yylex(); | |
706 | } | |
707 | ||
79072805 LW |
708 | /* Is there a right-hand side to take care of? */ |
709 | if (lex_repl && (lex_inwhat == OP_SUBST || lex_inwhat == OP_TRANS)) { | |
710 | linestr = lex_repl; | |
711 | lex_inpat = 0; | |
fd049845 | 712 | bufend = bufptr = oldbufptr = oldoldbufptr = linestart = SvPVX(linestr); |
79072805 | 713 | bufend += SvCUR(linestr); |
8990e307 | 714 | SAVEFREESV(linestr); |
79072805 LW |
715 | lex_dojoin = FALSE; |
716 | lex_brackets = 0; | |
717 | lex_fakebrack = 0; | |
718 | lex_casemods = 0; | |
a0d0e21e | 719 | *lex_casestack = '\0'; |
79072805 LW |
720 | lex_starts = 0; |
721 | if (SvCOMPILED(lex_repl)) { | |
722 | lex_state = LEX_INTERPNORMAL; | |
723 | lex_starts++; | |
724 | } | |
725 | else | |
726 | lex_state = LEX_INTERPCONCAT; | |
727 | lex_repl = Nullsv; | |
728 | return ','; | |
ffed7fef LW |
729 | } |
730 | else { | |
79072805 | 731 | pop_scope(); |
463ee0b2 | 732 | bufend = SvPVX(linestr); |
79072805 LW |
733 | bufend += SvCUR(linestr); |
734 | expect = XOPERATOR; | |
735 | return ')'; | |
ffed7fef LW |
736 | } |
737 | } | |
738 | ||
8990e307 | 739 | static char * |
79072805 LW |
740 | scan_const(start) |
741 | char *start; | |
742 | { | |
743 | register char *send = bufend; | |
744 | SV *sv = NEWSV(93, send - start); | |
745 | register char *s = start; | |
463ee0b2 | 746 | register char *d = SvPVX(sv); |
79072805 LW |
747 | bool dorange = FALSE; |
748 | I32 len; | |
749 | char *leave = | |
750 | lex_inpat | |
748a9306 | 751 | ? "\\.^$@AGZdDwWsSbB+*?|()-nrtfeaxc0123456789[{]} \t\n\r\f\v#" |
79072805 LW |
752 | : (lex_inwhat & OP_TRANS) |
753 | ? "" | |
754 | : ""; | |
755 | ||
756 | while (s < send || dorange) { | |
757 | if (lex_inwhat == OP_TRANS) { | |
758 | if (dorange) { | |
759 | I32 i; | |
760 | I32 max; | |
463ee0b2 | 761 | i = d - SvPVX(sv); |
79072805 | 762 | SvGROW(sv, SvLEN(sv) + 256); |
463ee0b2 | 763 | d = SvPVX(sv) + i; |
79072805 | 764 | d -= 2; |
91b7def8 | 765 | max = (U8)d[1]; |
766 | for (i = (U8)*d; i <= max; i++) | |
79072805 LW |
767 | *d++ = i; |
768 | dorange = FALSE; | |
769 | continue; | |
770 | } | |
771 | else if (*s == '-' && s+1 < send && s != start) { | |
772 | dorange = TRUE; | |
773 | s++; | |
774 | } | |
775 | } | |
748a9306 LW |
776 | else if (*s == '(' && lex_inpat && s[1] == '?' && s[2] == '#') { |
777 | while (s < send && *s != ')') | |
778 | *d++ = *s++; | |
779 | } | |
780 | else if (*s == '#' && lex_inpat && | |
781 | ((PMOP*)lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
782 | while (s+1 < send && *s != '\n') | |
783 | *d++ = *s++; | |
784 | } | |
a0d0e21e | 785 | else if (*s == '@' && s[1] && (isALNUM(s[1]) || strchr(":'{$", s[1]))) |
79072805 LW |
786 | break; |
787 | else if (*s == '$') { | |
788 | if (!lex_inpat) /* not a regexp, so $ must be var */ | |
789 | break; | |
a0d0e21e | 790 | if (s + 1 < send && !strchr(")| \n\t", s[1])) |
79072805 LW |
791 | break; /* in regexp, $ might be tail anchor */ |
792 | } | |
793 | if (*s == '\\' && s+1 < send) { | |
794 | s++; | |
93a17b20 | 795 | if (*s && strchr(leave, *s)) { |
79072805 LW |
796 | *d++ = '\\'; |
797 | *d++ = *s++; | |
798 | continue; | |
799 | } | |
800 | if (lex_inwhat == OP_SUBST && !lex_inpat && | |
a0d0e21e | 801 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 802 | { |
a0d0e21e LW |
803 | if (dowarn) |
804 | warn("\\%c better written as $%c", *s, *s); | |
79072805 LW |
805 | *--s = '$'; |
806 | break; | |
807 | } | |
a0d0e21e | 808 | if (lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
809 | --s; |
810 | break; | |
811 | } | |
812 | switch (*s) { | |
813 | case '-': | |
814 | if (lex_inwhat == OP_TRANS) { | |
815 | *d++ = *s++; | |
816 | continue; | |
817 | } | |
818 | /* FALL THROUGH */ | |
819 | default: | |
820 | *d++ = *s++; | |
821 | continue; | |
822 | case '0': case '1': case '2': case '3': | |
823 | case '4': case '5': case '6': case '7': | |
824 | *d++ = scan_oct(s, 3, &len); | |
825 | s += len; | |
826 | continue; | |
827 | case 'x': | |
828 | *d++ = scan_hex(++s, 2, &len); | |
829 | s += len; | |
830 | continue; | |
831 | case 'c': | |
832 | s++; | |
bbce6d69 | 833 | len = *s++; |
834 | *d++ = toCTRL(len); | |
79072805 LW |
835 | continue; |
836 | case 'b': | |
837 | *d++ = '\b'; | |
838 | break; | |
839 | case 'n': | |
840 | *d++ = '\n'; | |
841 | break; | |
842 | case 'r': | |
843 | *d++ = '\r'; | |
844 | break; | |
845 | case 'f': | |
846 | *d++ = '\f'; | |
847 | break; | |
848 | case 't': | |
849 | *d++ = '\t'; | |
850 | break; | |
851 | case 'e': | |
852 | *d++ = '\033'; | |
853 | break; | |
854 | case 'a': | |
855 | *d++ = '\007'; | |
856 | break; | |
857 | } | |
858 | s++; | |
859 | continue; | |
860 | } | |
861 | *d++ = *s++; | |
862 | } | |
863 | *d = '\0'; | |
463ee0b2 | 864 | SvCUR_set(sv, d - SvPVX(sv)); |
79072805 LW |
865 | SvPOK_on(sv); |
866 | ||
867 | if (SvCUR(sv) + 5 < SvLEN(sv)) { | |
868 | SvLEN_set(sv, SvCUR(sv) + 1); | |
463ee0b2 | 869 | Renew(SvPVX(sv), SvLEN(sv), char); |
79072805 LW |
870 | } |
871 | if (s > bufptr) | |
872 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); | |
873 | else | |
8990e307 | 874 | SvREFCNT_dec(sv); |
79072805 LW |
875 | return s; |
876 | } | |
877 | ||
878 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ | |
8990e307 | 879 | static int |
79072805 LW |
880 | intuit_more(s) |
881 | register char *s; | |
882 | { | |
883 | if (lex_brackets) | |
884 | return TRUE; | |
885 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
886 | return TRUE; | |
887 | if (*s != '{' && *s != '[') | |
888 | return FALSE; | |
889 | if (!lex_inpat) | |
890 | return TRUE; | |
891 | ||
892 | /* In a pattern, so maybe we have {n,m}. */ | |
893 | if (*s == '{') { | |
894 | s++; | |
895 | if (!isDIGIT(*s)) | |
896 | return TRUE; | |
897 | while (isDIGIT(*s)) | |
898 | s++; | |
899 | if (*s == ',') | |
900 | s++; | |
901 | while (isDIGIT(*s)) | |
902 | s++; | |
903 | if (*s == '}') | |
904 | return FALSE; | |
905 | return TRUE; | |
906 | ||
907 | } | |
908 | ||
909 | /* On the other hand, maybe we have a character class */ | |
910 | ||
911 | s++; | |
912 | if (*s == ']' || *s == '^') | |
913 | return FALSE; | |
914 | else { | |
915 | int weight = 2; /* let's weigh the evidence */ | |
916 | char seen[256]; | |
917 | unsigned char un_char = 0, last_un_char; | |
93a17b20 | 918 | char *send = strchr(s,']'); |
79072805 LW |
919 | char tmpbuf[512]; |
920 | ||
921 | if (!send) /* has to be an expression */ | |
922 | return TRUE; | |
923 | ||
924 | Zero(seen,256,char); | |
925 | if (*s == '$') | |
926 | weight -= 3; | |
927 | else if (isDIGIT(*s)) { | |
928 | if (s[1] != ']') { | |
929 | if (isDIGIT(s[1]) && s[2] == ']') | |
930 | weight -= 10; | |
931 | } | |
932 | else | |
933 | weight -= 100; | |
934 | } | |
935 | for (; s < send; s++) { | |
936 | last_un_char = un_char; | |
937 | un_char = (unsigned char)*s; | |
938 | switch (*s) { | |
939 | case '@': | |
940 | case '&': | |
941 | case '$': | |
942 | weight -= seen[un_char] * 10; | |
943 | if (isALNUM(s[1])) { | |
944 | scan_ident(s,send,tmpbuf,FALSE); | |
a0d0e21e | 945 | if ((int)strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE, SVt_PV)) |
79072805 LW |
946 | weight -= 100; |
947 | else | |
948 | weight -= 10; | |
949 | } | |
950 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
951 | strchr("[#!%*<>()-=",s[1])) { |
952 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
953 | weight -= 10; |
954 | else | |
955 | weight -= 1; | |
956 | } | |
957 | break; | |
958 | case '\\': | |
959 | un_char = 254; | |
960 | if (s[1]) { | |
93a17b20 | 961 | if (strchr("wds]",s[1])) |
79072805 LW |
962 | weight += 100; |
963 | else if (seen['\''] || seen['"']) | |
964 | weight += 1; | |
93a17b20 | 965 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
966 | weight += 40; |
967 | else if (isDIGIT(s[1])) { | |
968 | weight += 40; | |
969 | while (s[1] && isDIGIT(s[1])) | |
970 | s++; | |
971 | } | |
972 | } | |
973 | else | |
974 | weight += 100; | |
975 | break; | |
976 | case '-': | |
977 | if (s[1] == '\\') | |
978 | weight += 50; | |
93a17b20 | 979 | if (strchr("aA01! ",last_un_char)) |
79072805 | 980 | weight += 30; |
93a17b20 | 981 | if (strchr("zZ79~",s[1])) |
79072805 LW |
982 | weight += 30; |
983 | break; | |
984 | default: | |
93a17b20 | 985 | if (!isALNUM(last_un_char) && !strchr("$@&",last_un_char) && |
79072805 LW |
986 | isALPHA(*s) && s[1] && isALPHA(s[1])) { |
987 | char *d = tmpbuf; | |
988 | while (isALPHA(*s)) | |
989 | *d++ = *s++; | |
990 | *d = '\0'; | |
991 | if (keyword(tmpbuf, d - tmpbuf)) | |
992 | weight -= 150; | |
993 | } | |
994 | if (un_char == last_un_char + 1) | |
995 | weight += 5; | |
996 | weight -= seen[un_char]; | |
997 | break; | |
998 | } | |
999 | seen[un_char]++; | |
1000 | } | |
1001 | if (weight >= 0) /* probably a character class */ | |
1002 | return FALSE; | |
1003 | } | |
1004 | ||
1005 | return TRUE; | |
1006 | } | |
ffed7fef | 1007 | |
a0d0e21e LW |
1008 | static int |
1009 | intuit_method(start,gv) | |
1010 | char *start; | |
1011 | GV *gv; | |
1012 | { | |
1013 | char *s = start + (*start == '$'); | |
1014 | char tmpbuf[1024]; | |
1015 | STRLEN len; | |
1016 | GV* indirgv; | |
1017 | ||
1018 | if (gv) { | |
1019 | if (GvIO(gv)) | |
1020 | return 0; | |
8ebc5c01 | 1021 | if (!GvCVu(gv)) |
a0d0e21e LW |
1022 | gv = 0; |
1023 | } | |
1024 | s = scan_word(s, tmpbuf, TRUE, &len); | |
1025 | if (*start == '$') { | |
1026 | if (gv || last_lop_op == OP_PRINT || isUPPER(*tokenbuf)) | |
1027 | return 0; | |
1028 | s = skipspace(s); | |
1029 | bufptr = start; | |
1030 | expect = XREF; | |
1031 | return *s == '(' ? FUNCMETH : METHOD; | |
1032 | } | |
1033 | if (!keyword(tmpbuf, len)) { | |
1034 | indirgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVCV); | |
8ebc5c01 | 1035 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
1036 | return 0; |
1037 | /* filehandle or package name makes it a method */ | |
89bfa8cd | 1038 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) { |
a0d0e21e | 1039 | s = skipspace(s); |
55497cff | 1040 | if ((bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
1041 | return 0; /* no assumptions -- "=>" quotes bearword */ | |
a0d0e21e LW |
1042 | nextval[nexttoke].opval = |
1043 | (OP*)newSVOP(OP_CONST, 0, | |
1044 | newSVpv(tmpbuf,0)); | |
1045 | nextval[nexttoke].opval->op_private = | |
1046 | OPpCONST_BARE; | |
1047 | expect = XTERM; | |
1048 | force_next(WORD); | |
1049 | bufptr = s; | |
1050 | return *s == '(' ? FUNCMETH : METHOD; | |
1051 | } | |
1052 | } | |
1053 | return 0; | |
1054 | } | |
1055 | ||
1056 | static char* | |
1057 | incl_perldb() | |
1058 | { | |
1059 | if (perldb) { | |
1060 | char *pdb = getenv("PERL5DB"); | |
1061 | ||
1062 | if (pdb) | |
1063 | return pdb; | |
1064 | return "BEGIN { require 'perl5db.pl' }"; | |
1065 | } | |
1066 | return ""; | |
1067 | } | |
1068 | ||
1069 | ||
16d20bd9 AD |
1070 | /* Encoded script support. filter_add() effectively inserts a |
1071 | * 'pre-processing' function into the current source input stream. | |
1072 | * Note that the filter function only applies to the current source file | |
1073 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
1074 | * | |
1075 | * The datasv parameter (which may be NULL) can be used to pass | |
1076 | * private data to this instance of the filter. The filter function | |
1077 | * can recover the SV using the FILTER_DATA macro and use it to | |
1078 | * store private buffers and state information. | |
1079 | * | |
1080 | * The supplied datasv parameter is upgraded to a PVIO type | |
1081 | * and the IoDIRP field is used to store the function pointer. | |
1082 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for | |
1083 | * private use must be set using malloc'd pointers. | |
1084 | */ | |
1085 | static int filter_debug = 0; | |
1086 | ||
1087 | SV * | |
1088 | filter_add(funcp, datasv) | |
1089 | filter_t funcp; | |
1090 | SV *datasv; | |
1091 | { | |
1092 | if (!funcp){ /* temporary handy debugging hack to be deleted */ | |
1093 | filter_debug = atoi((char*)datasv); | |
1094 | return NULL; | |
1095 | } | |
1096 | if (!rsfp_filters) | |
1097 | rsfp_filters = newAV(); | |
1098 | if (!datasv) | |
1099 | datasv = newSV(0); | |
1100 | if (!SvUPGRADE(datasv, SVt_PVIO)) | |
1101 | die("Can't upgrade filter_add data to SVt_PVIO"); | |
1102 | IoDIRP(datasv) = (DIR*)funcp; /* stash funcp into spare field */ | |
1103 | if (filter_debug) | |
ff0cee69 | 1104 | warn("filter_add func %p (%s)", funcp, SvPV(datasv,na)); |
e50aee73 AD |
1105 | av_unshift(rsfp_filters, 1); |
1106 | av_store(rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
1107 | return(datasv); |
1108 | } | |
1109 | ||
1110 | ||
1111 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 1112 | void |
16d20bd9 AD |
1113 | filter_del(funcp) |
1114 | filter_t funcp; | |
1115 | { | |
1116 | if (filter_debug) | |
ff0cee69 | 1117 | warn("filter_del func %p", funcp); |
16d20bd9 AD |
1118 | if (!rsfp_filters || AvFILL(rsfp_filters)<0) |
1119 | return; | |
1120 | /* if filter is on top of stack (usual case) just pop it off */ | |
e50aee73 AD |
1121 | if (IoDIRP(FILTER_DATA(0)) == (void*)funcp){ |
1122 | /* sv_free(av_pop(rsfp_filters)); */ | |
1123 | sv_free(av_shift(rsfp_filters)); | |
1124 | ||
16d20bd9 AD |
1125 | return; |
1126 | } | |
1127 | /* we need to search for the correct entry and clear it */ | |
1128 | die("filter_del can only delete in reverse order (currently)"); | |
1129 | } | |
1130 | ||
1131 | ||
1132 | /* Invoke the n'th filter function for the current rsfp. */ | |
1133 | I32 | |
1134 | filter_read(idx, buf_sv, maxlen) | |
1135 | int idx; | |
1136 | SV *buf_sv; | |
1137 | int maxlen; /* 0 = read one text line */ | |
a0d0e21e | 1138 | { |
16d20bd9 AD |
1139 | filter_t funcp; |
1140 | SV *datasv = NULL; | |
e50aee73 | 1141 | |
16d20bd9 AD |
1142 | if (!rsfp_filters) |
1143 | return -1; | |
1144 | if (idx > AvFILL(rsfp_filters)){ /* Any more filters? */ | |
1145 | /* Provide a default input filter to make life easy. */ | |
1146 | /* Note that we append to the line. This is handy. */ | |
16d20bd9 AD |
1147 | if (filter_debug) |
1148 | warn("filter_read %d: from rsfp\n", idx); | |
1149 | if (maxlen) { | |
1150 | /* Want a block */ | |
1151 | int len ; | |
1152 | int old_len = SvCUR(buf_sv) ; | |
1153 | ||
1154 | /* ensure buf_sv is large enough */ | |
1155 | SvGROW(buf_sv, old_len + maxlen) ; | |
760ac839 LW |
1156 | if ((len = PerlIO_read(rsfp, SvPVX(buf_sv) + old_len, maxlen)) <= 0){ |
1157 | if (PerlIO_error(rsfp)) | |
37120919 AD |
1158 | return -1; /* error */ |
1159 | else | |
1160 | return 0 ; /* end of file */ | |
1161 | } | |
16d20bd9 AD |
1162 | SvCUR_set(buf_sv, old_len + len) ; |
1163 | } else { | |
1164 | /* Want a line */ | |
37120919 | 1165 | if (sv_gets(buf_sv, rsfp, SvCUR(buf_sv)) == NULL) { |
760ac839 | 1166 | if (PerlIO_error(rsfp)) |
37120919 AD |
1167 | return -1; /* error */ |
1168 | else | |
1169 | return 0 ; /* end of file */ | |
1170 | } | |
16d20bd9 AD |
1171 | } |
1172 | return SvCUR(buf_sv); | |
1173 | } | |
1174 | /* Skip this filter slot if filter has been deleted */ | |
1175 | if ( (datasv = FILTER_DATA(idx)) == &sv_undef){ | |
1176 | if (filter_debug) | |
1177 | warn("filter_read %d: skipped (filter deleted)\n", idx); | |
1178 | return FILTER_READ(idx+1, buf_sv, maxlen); /* recurse */ | |
1179 | } | |
1180 | /* Get function pointer hidden within datasv */ | |
1181 | funcp = (filter_t)IoDIRP(datasv); | |
1182 | if (filter_debug) | |
ff0cee69 | 1183 | warn("filter_read %d: via function %p (%s)\n", |
16d20bd9 AD |
1184 | idx, funcp, SvPV(datasv,na)); |
1185 | /* Call function. The function is expected to */ | |
1186 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 1187 | /* Return: <0:error, =0:eof, >0:not eof */ |
16d20bd9 AD |
1188 | return (*funcp)(idx, buf_sv, maxlen); |
1189 | } | |
1190 | ||
1191 | static char * | |
fd049845 | 1192 | filter_gets(sv,fp, append) |
16d20bd9 | 1193 | register SV *sv; |
760ac839 | 1194 | register PerlIO *fp; |
fd049845 | 1195 | STRLEN append; |
16d20bd9 AD |
1196 | { |
1197 | if (rsfp_filters) { | |
1198 | ||
55497cff | 1199 | if (!append) |
1200 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
1201 | if (FILTER_READ(0, sv, 0) > 0) |
1202 | return ( SvPVX(sv) ) ; | |
1203 | else | |
1204 | return Nullch ; | |
1205 | } | |
1206 | else | |
fd049845 | 1207 | return (sv_gets(sv, fp, append)); |
16d20bd9 | 1208 | |
a0d0e21e LW |
1209 | } |
1210 | ||
1211 | ||
748a9306 LW |
1212 | #ifdef DEBUGGING |
1213 | static char* exp_name[] = | |
a0d0e21e | 1214 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "TERMBLOCK" }; |
748a9306 | 1215 | #endif |
463ee0b2 | 1216 | |
71be2cbc | 1217 | EXT int yychar; /* last token */ |
463ee0b2 | 1218 | |
2f3197b3 | 1219 | int |
378cc40b LW |
1220 | yylex() |
1221 | { | |
79072805 | 1222 | register char *s; |
378cc40b | 1223 | register char *d; |
79072805 | 1224 | register I32 tmp; |
463ee0b2 | 1225 | STRLEN len; |
a687059c | 1226 | |
bbce6d69 | 1227 | if (pending_ident) { |
1228 | char pit = pending_ident; | |
1229 | pending_ident = 0; | |
1230 | ||
1231 | if (in_my) { | |
1232 | if (strchr(tokenbuf,':')) | |
1233 | croak(no_myglob,tokenbuf); | |
1234 | yylval.opval = newOP(OP_PADANY, 0); | |
1235 | yylval.opval->op_targ = pad_allocmy(tokenbuf); | |
1236 | return PRIVATEREF; | |
1237 | } | |
1238 | ||
1239 | if (!strchr(tokenbuf,':') && (tmp = pad_findmy(tokenbuf))) { | |
1240 | if (last_lop_op == OP_SORT && | |
1241 | tokenbuf[0] == '$' && | |
1242 | (tokenbuf[1] == 'a' || tokenbuf[1] == 'b') | |
1243 | && !tokenbuf[2]) | |
1244 | { | |
1245 | for (d = in_eval ? oldoldbufptr : linestart; | |
1246 | d < bufend && *d != '\n'; | |
1247 | d++) | |
1248 | { | |
1249 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
1250 | croak("Can't use \"my %s\" in sort comparison", | |
1251 | tokenbuf); | |
1252 | } | |
1253 | } | |
1254 | } | |
1255 | ||
1256 | yylval.opval = newOP(OP_PADANY, 0); | |
1257 | yylval.opval->op_targ = tmp; | |
1258 | return PRIVATEREF; | |
1259 | } | |
1260 | ||
1261 | /* Force them to make up their mind on "@foo". */ | |
1262 | if (pit == '@' && lex_state != LEX_NORMAL && !lex_brackets) { | |
1263 | GV *gv = gv_fetchpv(tokenbuf+1, FALSE, SVt_PVAV); | |
36477c24 | 1264 | if (!gv || ((tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) { |
bbce6d69 | 1265 | char tmpbuf[1024]; |
1266 | sprintf(tmpbuf, "Literal %s now requires backslash", tokenbuf); | |
1267 | yyerror(tmpbuf); | |
1268 | } | |
1269 | } | |
1270 | ||
1271 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf+1, 0)); | |
1272 | yylval.opval->op_private = OPpCONST_ENTERED; | |
1273 | gv_fetchpv(tokenbuf+1, in_eval ? GV_ADDMULTI : TRUE, | |
1274 | ((tokenbuf[0] == '$') ? SVt_PV | |
1275 | : (tokenbuf[0] == '@') ? SVt_PVAV | |
1276 | : SVt_PVHV)); | |
1277 | return WORD; | |
1278 | } | |
1279 | ||
79072805 LW |
1280 | switch (lex_state) { |
1281 | #ifdef COMMENTARY | |
1282 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
1283 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
1284 | break; | |
1285 | #endif | |
1286 | ||
1287 | case LEX_KNOWNEXT: | |
1288 | nexttoke--; | |
1289 | yylval = nextval[nexttoke]; | |
463ee0b2 | 1290 | if (!nexttoke) { |
79072805 | 1291 | lex_state = lex_defer; |
463ee0b2 | 1292 | expect = lex_expect; |
a0d0e21e | 1293 | lex_defer = LEX_NORMAL; |
463ee0b2 | 1294 | } |
79072805 LW |
1295 | return(nexttype[nexttoke]); |
1296 | ||
1297 | case LEX_INTERPCASEMOD: | |
1298 | #ifdef DEBUGGING | |
1299 | if (bufptr != bufend && *bufptr != '\\') | |
463ee0b2 | 1300 | croak("panic: INTERPCASEMOD"); |
79072805 LW |
1301 | #endif |
1302 | if (bufptr == bufend || bufptr[1] == 'E') { | |
a0d0e21e | 1303 | char oldmod; |
79072805 | 1304 | if (lex_casemods) { |
a0d0e21e LW |
1305 | oldmod = lex_casestack[--lex_casemods]; |
1306 | lex_casestack[lex_casemods] = '\0'; | |
1307 | if (bufptr != bufend && strchr("LUQ", oldmod)) { | |
1308 | bufptr += 2; | |
1309 | lex_state = LEX_INTERPCONCAT; | |
1310 | } | |
79072805 LW |
1311 | return ')'; |
1312 | } | |
a0d0e21e LW |
1313 | if (bufptr != bufend) |
1314 | bufptr += 2; | |
1315 | lex_state = LEX_INTERPCONCAT; | |
79072805 LW |
1316 | return yylex(); |
1317 | } | |
1318 | else { | |
1319 | s = bufptr + 1; | |
1320 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
1321 | tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */ | |
a0d0e21e LW |
1322 | if (strchr("LU", *s) && |
1323 | (strchr(lex_casestack, 'L') || strchr(lex_casestack, 'U'))) | |
1324 | { | |
1325 | lex_casestack[--lex_casemods] = '\0'; | |
1326 | return ')'; | |
1327 | } | |
1328 | if (lex_casemods > 10) { | |
89bfa8cd | 1329 | char* newlb = Renew(lex_casestack, lex_casemods + 2, char); |
a0d0e21e LW |
1330 | if (newlb != lex_casestack) { |
1331 | SAVEFREEPV(newlb); | |
1332 | lex_casestack = newlb; | |
1333 | } | |
1334 | } | |
1335 | lex_casestack[lex_casemods++] = *s; | |
1336 | lex_casestack[lex_casemods] = '\0'; | |
79072805 LW |
1337 | lex_state = LEX_INTERPCONCAT; |
1338 | nextval[nexttoke].ival = 0; | |
1339 | force_next('('); | |
1340 | if (*s == 'l') | |
1341 | nextval[nexttoke].ival = OP_LCFIRST; | |
1342 | else if (*s == 'u') | |
1343 | nextval[nexttoke].ival = OP_UCFIRST; | |
1344 | else if (*s == 'L') | |
1345 | nextval[nexttoke].ival = OP_LC; | |
1346 | else if (*s == 'U') | |
1347 | nextval[nexttoke].ival = OP_UC; | |
a0d0e21e LW |
1348 | else if (*s == 'Q') |
1349 | nextval[nexttoke].ival = OP_QUOTEMETA; | |
79072805 | 1350 | else |
463ee0b2 | 1351 | croak("panic: yylex"); |
79072805 LW |
1352 | bufptr = s + 1; |
1353 | force_next(FUNC); | |
1354 | if (lex_starts) { | |
1355 | s = bufptr; | |
463ee0b2 | 1356 | lex_starts = 0; |
79072805 LW |
1357 | Aop(OP_CONCAT); |
1358 | } | |
1359 | else | |
1360 | return yylex(); | |
1361 | } | |
1362 | ||
55497cff | 1363 | case LEX_INTERPPUSH: |
1364 | return sublex_push(); | |
1365 | ||
79072805 LW |
1366 | case LEX_INTERPSTART: |
1367 | if (bufptr == bufend) | |
1368 | return sublex_done(); | |
1369 | expect = XTERM; | |
1370 | lex_dojoin = (*bufptr == '@'); | |
1371 | lex_state = LEX_INTERPNORMAL; | |
1372 | if (lex_dojoin) { | |
1373 | nextval[nexttoke].ival = 0; | |
1374 | force_next(','); | |
a0d0e21e | 1375 | force_ident("\"", '$'); |
79072805 LW |
1376 | nextval[nexttoke].ival = 0; |
1377 | force_next('$'); | |
1378 | nextval[nexttoke].ival = 0; | |
1379 | force_next('('); | |
1380 | nextval[nexttoke].ival = OP_JOIN; /* emulate join($", ...) */ | |
1381 | force_next(FUNC); | |
1382 | } | |
1383 | if (lex_starts++) { | |
1384 | s = bufptr; | |
1385 | Aop(OP_CONCAT); | |
1386 | } | |
1387 | else | |
1388 | return yylex(); | |
1389 | break; | |
1390 | ||
1391 | case LEX_INTERPENDMAYBE: | |
1392 | if (intuit_more(bufptr)) { | |
1393 | lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
1394 | break; | |
1395 | } | |
1396 | /* FALL THROUGH */ | |
1397 | ||
1398 | case LEX_INTERPEND: | |
1399 | if (lex_dojoin) { | |
1400 | lex_dojoin = FALSE; | |
1401 | lex_state = LEX_INTERPCONCAT; | |
1402 | return ')'; | |
1403 | } | |
1404 | /* FALLTHROUGH */ | |
1405 | case LEX_INTERPCONCAT: | |
1406 | #ifdef DEBUGGING | |
1407 | if (lex_brackets) | |
463ee0b2 | 1408 | croak("panic: INTERPCONCAT"); |
79072805 LW |
1409 | #endif |
1410 | if (bufptr == bufend) | |
1411 | return sublex_done(); | |
1412 | ||
ed6116ce | 1413 | if (SvIVX(linestr) == '\'') { |
79072805 LW |
1414 | SV *sv = newSVsv(linestr); |
1415 | if (!lex_inpat) | |
1416 | sv = q(sv); | |
1417 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); | |
1418 | s = bufend; | |
1419 | } | |
1420 | else { | |
1421 | s = scan_const(bufptr); | |
1422 | if (*s == '\\') | |
1423 | lex_state = LEX_INTERPCASEMOD; | |
1424 | else | |
1425 | lex_state = LEX_INTERPSTART; | |
1426 | } | |
1427 | ||
1428 | if (s != bufptr) { | |
1429 | nextval[nexttoke] = yylval; | |
463ee0b2 | 1430 | expect = XTERM; |
79072805 LW |
1431 | force_next(THING); |
1432 | if (lex_starts++) | |
1433 | Aop(OP_CONCAT); | |
1434 | else { | |
1435 | bufptr = s; | |
1436 | return yylex(); | |
1437 | } | |
1438 | } | |
1439 | ||
1440 | return yylex(); | |
a0d0e21e LW |
1441 | case LEX_FORMLINE: |
1442 | lex_state = LEX_NORMAL; | |
1443 | s = scan_formline(bufptr); | |
1444 | if (!lex_formbrack) | |
1445 | goto rightbracket; | |
1446 | OPERATOR(';'); | |
79072805 LW |
1447 | } |
1448 | ||
1449 | s = bufptr; | |
a687059c LW |
1450 | oldoldbufptr = oldbufptr; |
1451 | oldbufptr = s; | |
79072805 | 1452 | DEBUG_p( { |
760ac839 | 1453 | PerlIO_printf(PerlIO_stderr(), "### Tokener expecting %s at %s\n", exp_name[expect], s); |
79072805 | 1454 | } ) |
463ee0b2 LW |
1455 | |
1456 | retry: | |
378cc40b LW |
1457 | switch (*s) { |
1458 | default: | |
a0d0e21e | 1459 | warn("Unrecognized character \\%03o ignored", *s++ & 255); |
378cc40b | 1460 | goto retry; |
e929a76b LW |
1461 | case 4: |
1462 | case 26: | |
1463 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 1464 | case 0: |
463ee0b2 | 1465 | if (!rsfp) { |
55497cff | 1466 | last_uni = 0; |
1467 | last_lop = 0; | |
463ee0b2 LW |
1468 | if (lex_brackets) |
1469 | yyerror("Missing right bracket"); | |
79072805 | 1470 | TOKEN(0); |
463ee0b2 | 1471 | } |
a687059c LW |
1472 | if (s++ < bufend) |
1473 | goto retry; /* ignore stray nulls */ | |
2f3197b3 | 1474 | last_uni = 0; |
79072805 | 1475 | last_lop = 0; |
a0d0e21e | 1476 | if (!in_eval && !preambled) { |
79072805 | 1477 | preambled = TRUE; |
a0d0e21e | 1478 | sv_setpv(linestr,incl_perldb()); |
91b7def8 | 1479 | if (SvCUR(linestr)) |
1480 | sv_catpv(linestr,";"); | |
1481 | if (preambleav){ | |
1482 | while(AvFILL(preambleav) >= 0) { | |
1483 | SV *tmpsv = av_shift(preambleav); | |
1484 | sv_catsv(linestr, tmpsv); | |
1485 | sv_catpv(linestr, ";"); | |
1486 | sv_free(tmpsv); | |
1487 | } | |
1488 | sv_free((SV*)preambleav); | |
1489 | preambleav = NULL; | |
1490 | } | |
79072805 LW |
1491 | if (minus_n || minus_p) { |
1492 | sv_catpv(linestr, "LINE: while (<>) {"); | |
1493 | if (minus_l) | |
a0d0e21e | 1494 | sv_catpv(linestr,"chomp;"); |
2304df62 AD |
1495 | if (minus_a){ |
1496 | if (minus_F){ | |
1497 | char tmpbuf1[50]; | |
1498 | if ( splitstr[0] == '/' || | |
1499 | splitstr[0] == '\'' || | |
1500 | splitstr[0] == '"' ) | |
1501 | sprintf( tmpbuf1, "@F=split(%s);", splitstr ); | |
1502 | else | |
1503 | sprintf( tmpbuf1, "@F=split('%s');", splitstr ); | |
1504 | sv_catpv(linestr,tmpbuf1); | |
1505 | } | |
1506 | else | |
1507 | sv_catpv(linestr,"@F=split(' ');"); | |
1508 | } | |
79072805 | 1509 | } |
a0d0e21e | 1510 | sv_catpv(linestr, "\n"); |
fd049845 | 1511 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
463ee0b2 | 1512 | bufend = SvPVX(linestr) + SvCUR(linestr); |
a0d0e21e LW |
1513 | if (perldb && curstash != debstash) { |
1514 | SV *sv = NEWSV(85,0); | |
1515 | ||
1516 | sv_upgrade(sv, SVt_PVMG); | |
1517 | sv_setsv(sv,linestr); | |
1518 | av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv); | |
1519 | } | |
79072805 | 1520 | goto retry; |
a687059c | 1521 | } |
e929a76b | 1522 | do { |
fd049845 | 1523 | if ((s = filter_gets(linestr, rsfp, 0)) == Nullch) { |
e929a76b | 1524 | fake_eof: |
395c3793 | 1525 | if (rsfp) { |
a0d0e21e | 1526 | if (preprocess && !in_eval) |
79072805 | 1527 | (void)my_pclose(rsfp); |
760ac839 LW |
1528 | else if ((PerlIO *)rsfp == PerlIO_stdin()) |
1529 | PerlIO_clearerr(rsfp); | |
395c3793 | 1530 | else |
760ac839 | 1531 | (void)PerlIO_close(rsfp); |
395c3793 LW |
1532 | rsfp = Nullfp; |
1533 | } | |
a0d0e21e | 1534 | if (!in_eval && (minus_n || minus_p)) { |
79072805 LW |
1535 | sv_setpv(linestr,minus_p ? ";}continue{print" : ""); |
1536 | sv_catpv(linestr,";}"); | |
fd049845 | 1537 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
463ee0b2 | 1538 | bufend = SvPVX(linestr) + SvCUR(linestr); |
e929a76b LW |
1539 | minus_n = minus_p = 0; |
1540 | goto retry; | |
1541 | } | |
fd049845 | 1542 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
79072805 LW |
1543 | sv_setpv(linestr,""); |
1544 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ | |
378cc40b | 1545 | } |
a0d0e21e LW |
1546 | if (doextract) { |
1547 | if (*s == '#' && s[1] == '!' && instr(s,"perl")) | |
1548 | doextract = FALSE; | |
1549 | ||
1550 | /* Incest with pod. */ | |
1551 | if (*s == '=' && strnEQ(s, "=cut", 4)) { | |
1552 | sv_setpv(linestr, ""); | |
fd049845 | 1553 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
a0d0e21e LW |
1554 | bufend = SvPVX(linestr) + SvCUR(linestr); |
1555 | doextract = FALSE; | |
1556 | } | |
1557 | } | |
463ee0b2 | 1558 | incline(s); |
e929a76b | 1559 | } while (doextract); |
fd049845 | 1560 | oldoldbufptr = oldbufptr = bufptr = linestart = s; |
8990e307 | 1561 | if (perldb && curstash != debstash) { |
79072805 | 1562 | SV *sv = NEWSV(85,0); |
a687059c | 1563 | |
93a17b20 | 1564 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
1565 | sv_setsv(sv,linestr); |
1566 | av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv); | |
a687059c | 1567 | } |
463ee0b2 | 1568 | bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 LW |
1569 | if (curcop->cop_line == 1) { |
1570 | while (s < bufend && isSPACE(*s)) | |
1571 | s++; | |
a0d0e21e | 1572 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 1573 | s++; |
44a8e56a | 1574 | d = Nullch; |
1575 | if (!in_eval) { | |
1576 | if (*s == '#' && *(s+1) == '!') | |
1577 | d = s + 2; | |
1578 | #ifdef ALTERNATE_SHEBANG | |
1579 | else { | |
1580 | static char as[] = ALTERNATE_SHEBANG; | |
1581 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) | |
1582 | d = s + (sizeof(as) - 1); | |
1583 | } | |
1584 | #endif /* ALTERNATE_SHEBANG */ | |
1585 | } | |
1586 | if (d) { | |
b8378b72 | 1587 | char *ipath; |
774d564b | 1588 | char *ipathend; |
b8378b72 | 1589 | |
774d564b | 1590 | while (isSPACE(*d)) |
b8378b72 CS |
1591 | d++; |
1592 | ipath = d; | |
774d564b | 1593 | while (*d && !isSPACE(*d)) |
1594 | d++; | |
1595 | ipathend = d; | |
1596 | ||
1597 | #ifdef ARG_ZERO_IS_SCRIPT | |
1598 | if (ipathend > ipath) { | |
1599 | /* | |
1600 | * HP-UX (at least) sets argv[0] to the script name, | |
1601 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
1602 | * at least, set argv[0] to the basename of the Perl | |
1603 | * interpreter. So, having found "#!", we'll set it right. | |
1604 | */ | |
1605 | SV *x = GvSV(gv_fetchpv("\030", TRUE, SVt_PV)); | |
1606 | assert(SvPOK(x) || SvGMAGICAL(x)); | |
1607 | if (sv_eq(x, GvSV(curcop->cop_filegv))) | |
1608 | sv_setpvn(x, ipath, ipathend - ipath); | |
1609 | TAINT_NOT; /* $^X is always tainted, but that's OK */ | |
8ebc5c01 | 1610 | } |
774d564b | 1611 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
1612 | |
1613 | /* | |
1614 | * Look for options. | |
1615 | */ | |
748a9306 LW |
1616 | d = instr(s,"perl -"); |
1617 | if (!d) | |
1618 | d = instr(s,"perl"); | |
44a8e56a | 1619 | #ifdef ALTERNATE_SHEBANG |
1620 | /* | |
1621 | * If the ALTERNATE_SHEBANG on this system starts with a | |
1622 | * character that can be part of a Perl expression, then if | |
1623 | * we see it but not "perl", we're probably looking at the | |
1624 | * start of Perl code, not a request to hand off to some | |
1625 | * other interpreter. Similarly, if "perl" is there, but | |
1626 | * not in the first 'word' of the line, we assume the line | |
1627 | * contains the start of the Perl program. | |
44a8e56a | 1628 | */ |
1629 | if (d && *s != '#') { | |
774d564b | 1630 | char *c = ipath; |
44a8e56a | 1631 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
1632 | c++; | |
1633 | if (c < d) | |
1634 | d = Nullch; /* "perl" not in first word; ignore */ | |
1635 | else | |
1636 | *s = '#'; /* Don't try to parse shebang line */ | |
1637 | } | |
774d564b | 1638 | #endif /* ALTERNATE_SHEBANG */ |
748a9306 | 1639 | if (!d && |
44a8e56a | 1640 | *s == '#' && |
774d564b | 1641 | ipathend > ipath && |
748a9306 LW |
1642 | !minus_c && |
1643 | !instr(s,"indir") && | |
1644 | instr(origargv[0],"perl")) | |
1645 | { | |
9f68db38 | 1646 | char **newargv; |
9f68db38 | 1647 | |
774d564b | 1648 | *ipathend = '\0'; |
1649 | s = ipathend + 1; | |
de3bb511 | 1650 | while (s < bufend && isSPACE(*s)) |
9f68db38 LW |
1651 | s++; |
1652 | if (s < bufend) { | |
1653 | Newz(899,newargv,origargc+3,char*); | |
1654 | newargv[1] = s; | |
de3bb511 | 1655 | while (s < bufend && !isSPACE(*s)) |
9f68db38 LW |
1656 | s++; |
1657 | *s = '\0'; | |
1658 | Copy(origargv+1, newargv+2, origargc+1, char*); | |
1659 | } | |
1660 | else | |
1661 | newargv = origargv; | |
774d564b | 1662 | newargv[0] = ipath; |
1663 | execv(ipath, newargv); | |
1664 | croak("Can't exec %s", ipath); | |
9f68db38 | 1665 | } |
748a9306 | 1666 | if (d) { |
a0d0e21e LW |
1667 | int oldpdb = perldb; |
1668 | int oldn = minus_n; | |
1669 | int oldp = minus_p; | |
748a9306 LW |
1670 | |
1671 | while (*d && !isSPACE(*d)) d++; | |
89bfa8cd | 1672 | while (*d == ' ' || *d == '\t') d++; |
748a9306 LW |
1673 | |
1674 | if (*d++ == '-') { | |
1675 | while (d = moreswitches(d)) ; | |
1676 | if (perldb && !oldpdb || | |
b084f20b | 1677 | ( minus_n || minus_p ) && !(oldn || oldp) ) |
1678 | /* if we have already added "LINE: while (<>) {", | |
1679 | we must not do it again */ | |
748a9306 LW |
1680 | { |
1681 | sv_setpv(linestr, ""); | |
fd049845 | 1682 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
748a9306 LW |
1683 | bufend = SvPVX(linestr) + SvCUR(linestr); |
1684 | preambled = FALSE; | |
1685 | if (perldb) | |
1686 | (void)gv_fetchfile(origfilename); | |
1687 | goto retry; | |
1688 | } | |
a0d0e21e | 1689 | } |
79072805 | 1690 | } |
9f68db38 | 1691 | } |
79072805 | 1692 | } |
85e6fe83 | 1693 | if (lex_formbrack && lex_brackets <= lex_formbrack) { |
a0d0e21e LW |
1694 | bufptr = s; |
1695 | lex_state = LEX_FORMLINE; | |
1696 | return yylex(); | |
ae986130 | 1697 | } |
378cc40b | 1698 | goto retry; |
4fdae800 | 1699 | case '\r': |
ff0cee69 | 1700 | croak("Illegal character \\%03o (carriage return)", '\r'); |
4fdae800 | 1701 | case ' ': case '\t': case '\f': case 013: |
378cc40b LW |
1702 | s++; |
1703 | goto retry; | |
378cc40b | 1704 | case '#': |
e929a76b | 1705 | case '\n': |
79072805 | 1706 | if (lex_state != LEX_NORMAL || (in_eval && !rsfp)) { |
a687059c LW |
1707 | d = bufend; |
1708 | while (s < d && *s != '\n') | |
378cc40b | 1709 | s++; |
0f85fab0 | 1710 | if (s < d) |
378cc40b | 1711 | s++; |
463ee0b2 | 1712 | incline(s); |
85e6fe83 | 1713 | if (lex_formbrack && lex_brackets <= lex_formbrack) { |
a0d0e21e LW |
1714 | bufptr = s; |
1715 | lex_state = LEX_FORMLINE; | |
1716 | return yylex(); | |
a687059c | 1717 | } |
378cc40b | 1718 | } |
a687059c | 1719 | else { |
378cc40b | 1720 | *s = '\0'; |
a687059c LW |
1721 | bufend = s; |
1722 | } | |
378cc40b LW |
1723 | goto retry; |
1724 | case '-': | |
79072805 | 1725 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
378cc40b | 1726 | s++; |
748a9306 LW |
1727 | bufptr = s; |
1728 | tmp = *s++; | |
1729 | ||
1730 | while (s < bufend && (*s == ' ' || *s == '\t')) | |
1731 | s++; | |
1732 | ||
1733 | if (strnEQ(s,"=>",2)) { | |
1734 | if (dowarn) | |
1735 | warn("Ambiguous use of -%c => resolved to \"-%c\" =>", | |
ff0cee69 | 1736 | (int)tmp, (int)tmp); |
748a9306 LW |
1737 | s = force_word(bufptr,WORD,FALSE,FALSE,FALSE); |
1738 | OPERATOR('-'); /* unary minus */ | |
1739 | } | |
e334a159 | 1740 | last_uni = oldbufptr; |
a0d0e21e | 1741 | last_lop_op = OP_FTEREAD; /* good enough */ |
748a9306 | 1742 | switch (tmp) { |
79072805 LW |
1743 | case 'r': FTST(OP_FTEREAD); |
1744 | case 'w': FTST(OP_FTEWRITE); | |
1745 | case 'x': FTST(OP_FTEEXEC); | |
1746 | case 'o': FTST(OP_FTEOWNED); | |
1747 | case 'R': FTST(OP_FTRREAD); | |
1748 | case 'W': FTST(OP_FTRWRITE); | |
1749 | case 'X': FTST(OP_FTREXEC); | |
1750 | case 'O': FTST(OP_FTROWNED); | |
1751 | case 'e': FTST(OP_FTIS); | |
1752 | case 'z': FTST(OP_FTZERO); | |
1753 | case 's': FTST(OP_FTSIZE); | |
1754 | case 'f': FTST(OP_FTFILE); | |
1755 | case 'd': FTST(OP_FTDIR); | |
1756 | case 'l': FTST(OP_FTLINK); | |
1757 | case 'p': FTST(OP_FTPIPE); | |
1758 | case 'S': FTST(OP_FTSOCK); | |
1759 | case 'u': FTST(OP_FTSUID); | |
1760 | case 'g': FTST(OP_FTSGID); | |
1761 | case 'k': FTST(OP_FTSVTX); | |
1762 | case 'b': FTST(OP_FTBLK); | |
1763 | case 'c': FTST(OP_FTCHR); | |
1764 | case 't': FTST(OP_FTTTY); | |
1765 | case 'T': FTST(OP_FTTEXT); | |
1766 | case 'B': FTST(OP_FTBINARY); | |
85e6fe83 LW |
1767 | case 'M': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTMTIME); |
1768 | case 'A': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTATIME); | |
1769 | case 'C': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTCTIME); | |
378cc40b | 1770 | default: |
ff0cee69 | 1771 | croak("Unrecognized file test: -%c", (int)tmp); |
378cc40b LW |
1772 | break; |
1773 | } | |
1774 | } | |
a687059c LW |
1775 | tmp = *s++; |
1776 | if (*s == tmp) { | |
1777 | s++; | |
79072805 LW |
1778 | if (expect == XOPERATOR) |
1779 | TERM(POSTDEC); | |
1780 | else | |
1781 | OPERATOR(PREDEC); | |
1782 | } | |
1783 | else if (*s == '>') { | |
1784 | s++; | |
1785 | s = skipspace(s); | |
1786 | if (isIDFIRST(*s)) { | |
a0d0e21e | 1787 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); |
463ee0b2 | 1788 | TOKEN(ARROW); |
79072805 | 1789 | } |
748a9306 LW |
1790 | else if (*s == '$') |
1791 | OPERATOR(ARROW); | |
463ee0b2 | 1792 | else |
748a9306 | 1793 | TERM(ARROW); |
a687059c | 1794 | } |
79072805 LW |
1795 | if (expect == XOPERATOR) |
1796 | Aop(OP_SUBTRACT); | |
1797 | else { | |
2f3197b3 LW |
1798 | if (isSPACE(*s) || !isSPACE(*bufptr)) |
1799 | check_uni(); | |
79072805 | 1800 | OPERATOR('-'); /* unary minus */ |
2f3197b3 | 1801 | } |
79072805 | 1802 | |
378cc40b | 1803 | case '+': |
a687059c LW |
1804 | tmp = *s++; |
1805 | if (*s == tmp) { | |
378cc40b | 1806 | s++; |
79072805 LW |
1807 | if (expect == XOPERATOR) |
1808 | TERM(POSTINC); | |
1809 | else | |
1810 | OPERATOR(PREINC); | |
378cc40b | 1811 | } |
79072805 LW |
1812 | if (expect == XOPERATOR) |
1813 | Aop(OP_ADD); | |
1814 | else { | |
2f3197b3 LW |
1815 | if (isSPACE(*s) || !isSPACE(*bufptr)) |
1816 | check_uni(); | |
a687059c | 1817 | OPERATOR('+'); |
2f3197b3 | 1818 | } |
a687059c | 1819 | |
378cc40b | 1820 | case '*': |
79072805 LW |
1821 | if (expect != XOPERATOR) { |
1822 | s = scan_ident(s, bufend, tokenbuf, TRUE); | |
463ee0b2 | 1823 | expect = XOPERATOR; |
a0d0e21e LW |
1824 | force_ident(tokenbuf, '*'); |
1825 | if (!*tokenbuf) | |
1826 | PREREF('*'); | |
79072805 | 1827 | TERM('*'); |
a687059c | 1828 | } |
79072805 LW |
1829 | s++; |
1830 | if (*s == '*') { | |
a687059c | 1831 | s++; |
79072805 | 1832 | PWop(OP_POW); |
a687059c | 1833 | } |
79072805 LW |
1834 | Mop(OP_MULTIPLY); |
1835 | ||
378cc40b | 1836 | case '%': |
bbce6d69 | 1837 | if (expect == XOPERATOR) { |
1838 | ++s; | |
1839 | Mop(OP_MODULO); | |
a687059c | 1840 | } |
bbce6d69 | 1841 | tokenbuf[0] = '%'; |
1842 | s = scan_ident(s, bufend, tokenbuf+1, TRUE); | |
1843 | if (!tokenbuf[1]) { | |
1844 | if (s == bufend) | |
1845 | yyerror("Final % should be \\% or %name"); | |
1846 | PREREF('%'); | |
1847 | } | |
1848 | pending_ident = '%'; | |
1849 | TERM('%'); | |
a687059c | 1850 | |
378cc40b | 1851 | case '^': |
79072805 | 1852 | s++; |
a0d0e21e | 1853 | BOop(OP_BIT_XOR); |
79072805 LW |
1854 | case '[': |
1855 | lex_brackets++; | |
1856 | /* FALL THROUGH */ | |
378cc40b | 1857 | case '~': |
378cc40b | 1858 | case ',': |
378cc40b LW |
1859 | tmp = *s++; |
1860 | OPERATOR(tmp); | |
a0d0e21e LW |
1861 | case ':': |
1862 | if (s[1] == ':') { | |
1863 | len = 0; | |
1864 | goto just_a_word; | |
1865 | } | |
1866 | s++; | |
1867 | OPERATOR(':'); | |
8990e307 LW |
1868 | case '(': |
1869 | s++; | |
a0d0e21e | 1870 | if (last_lop == oldoldbufptr || last_uni == oldoldbufptr) |
8990e307 | 1871 | oldbufptr = oldoldbufptr; /* allow print(STDOUT 123) */ |
a0d0e21e LW |
1872 | else |
1873 | expect = XTERM; | |
1874 | TOKEN('('); | |
378cc40b | 1875 | case ';': |
79072805 LW |
1876 | if (curcop->cop_line < copline) |
1877 | copline = curcop->cop_line; | |
378cc40b LW |
1878 | tmp = *s++; |
1879 | OPERATOR(tmp); | |
1880 | case ')': | |
378cc40b | 1881 | tmp = *s++; |
16d20bd9 AD |
1882 | s = skipspace(s); |
1883 | if (*s == '{') | |
1884 | PREBLOCK(tmp); | |
378cc40b | 1885 | TERM(tmp); |
79072805 LW |
1886 | case ']': |
1887 | s++; | |
463ee0b2 LW |
1888 | if (lex_brackets <= 0) |
1889 | yyerror("Unmatched right bracket"); | |
1890 | else | |
1891 | --lex_brackets; | |
79072805 | 1892 | if (lex_state == LEX_INTERPNORMAL) { |
463ee0b2 | 1893 | if (lex_brackets == 0) { |
a0d0e21e | 1894 | if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>')) |
79072805 LW |
1895 | lex_state = LEX_INTERPEND; |
1896 | } | |
1897 | } | |
4633a7c4 | 1898 | TERM(']'); |
79072805 LW |
1899 | case '{': |
1900 | leftbracket: | |
79072805 | 1901 | s++; |
8990e307 | 1902 | if (lex_brackets > 100) { |
89bfa8cd | 1903 | char* newlb = Renew(lex_brackstack, lex_brackets + 1, char); |
8990e307 LW |
1904 | if (newlb != lex_brackstack) { |
1905 | SAVEFREEPV(newlb); | |
1906 | lex_brackstack = newlb; | |
1907 | } | |
1908 | } | |
a0d0e21e LW |
1909 | switch (expect) { |
1910 | case XTERM: | |
1911 | if (lex_formbrack) { | |
1912 | s--; | |
1913 | PRETERMBLOCK(DO); | |
1914 | } | |
1915 | if (oldoldbufptr == last_lop) | |
1916 | lex_brackstack[lex_brackets++] = XTERM; | |
1917 | else | |
1918 | lex_brackstack[lex_brackets++] = XOPERATOR; | |
79072805 | 1919 | OPERATOR(HASHBRACK); |
a0d0e21e | 1920 | break; |
a0d0e21e | 1921 | case XOPERATOR: |
748a9306 LW |
1922 | while (s < bufend && (*s == ' ' || *s == '\t')) |
1923 | s++; | |
44a8e56a | 1924 | d = s; |
1925 | tokenbuf[0] = '\0'; | |
1926 | if (d < bufend && *d == '-') { | |
1927 | tokenbuf[0] = '-'; | |
1928 | d++; | |
1929 | while (d < bufend && (*d == ' ' || *d == '\t')) | |
1930 | d++; | |
1931 | } | |
1932 | if (d < bufend && isIDFIRST(*d)) { | |
1933 | d = scan_word(d, tokenbuf + 1, FALSE, &len); | |
748a9306 LW |
1934 | while (d < bufend && (*d == ' ' || *d == '\t')) |
1935 | d++; | |
1936 | if (*d == '}') { | |
44a8e56a | 1937 | char minus = (tokenbuf[0] == '-'); |
748a9306 | 1938 | if (dowarn && |
44a8e56a | 1939 | (keyword(tokenbuf + 1, len) || |
1940 | (minus && len == 1 && isALPHA(tokenbuf[1])) || | |
1941 | perl_get_cv(tokenbuf + 1, FALSE) )) | |
748a9306 | 1942 | warn("Ambiguous use of {%s} resolved to {\"%s\"}", |
44a8e56a | 1943 | tokenbuf + !minus, tokenbuf + !minus); |
1944 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); | |
1945 | if (minus) | |
1946 | force_next('-'); | |
748a9306 LW |
1947 | } |
1948 | } | |
1949 | /* FALL THROUGH */ | |
1950 | case XBLOCK: | |
a0d0e21e | 1951 | lex_brackstack[lex_brackets++] = XSTATE; |
2304df62 | 1952 | expect = XSTATE; |
a0d0e21e LW |
1953 | break; |
1954 | case XTERMBLOCK: | |
1955 | lex_brackstack[lex_brackets++] = XOPERATOR; | |
1956 | expect = XSTATE; | |
1957 | break; | |
1958 | default: { | |
1959 | char *t; | |
1960 | if (oldoldbufptr == last_lop) | |
1961 | lex_brackstack[lex_brackets++] = XTERM; | |
1962 | else | |
1963 | lex_brackstack[lex_brackets++] = XOPERATOR; | |
1964 | s = skipspace(s); | |
1965 | if (*s == '}') | |
1966 | OPERATOR(HASHBRACK); | |
1967 | if (isALPHA(*s)) { | |
c07a80fd | 1968 | for (t = s; t < bufend && isALNUM(*t); t++) ; |
a0d0e21e LW |
1969 | } |
1970 | else if (*s == '\'' || *s == '"') { | |
1971 | t = strchr(s+1,*s); | |
1972 | if (!t++) | |
1973 | t = s; | |
1974 | } | |
1975 | else | |
1976 | t = s; | |
1977 | while (t < bufend && isSPACE(*t)) | |
1978 | t++; | |
1979 | if ((*t == ',' && !isLOWER(*s)) || (*t == '=' && t[1] == '>')) | |
1980 | OPERATOR(HASHBRACK); | |
1981 | if (expect == XREF) | |
1982 | expect = XTERM; | |
1983 | else { | |
1984 | lex_brackstack[lex_brackets-1] = XSTATE; | |
1985 | expect = XSTATE; | |
1986 | } | |
8990e307 | 1987 | } |
a0d0e21e | 1988 | break; |
463ee0b2 | 1989 | } |
79072805 LW |
1990 | yylval.ival = curcop->cop_line; |
1991 | if (isSPACE(*s) || *s == '#') | |
1992 | copline = NOLINE; /* invalidate current command line number */ | |
79072805 | 1993 | TOKEN('{'); |
378cc40b | 1994 | case '}': |
79072805 LW |
1995 | rightbracket: |
1996 | s++; | |
463ee0b2 LW |
1997 | if (lex_brackets <= 0) |
1998 | yyerror("Unmatched right bracket"); | |
1999 | else | |
2000 | expect = (expectation)lex_brackstack[--lex_brackets]; | |
85e6fe83 LW |
2001 | if (lex_brackets < lex_formbrack) |
2002 | lex_formbrack = 0; | |
79072805 | 2003 | if (lex_state == LEX_INTERPNORMAL) { |
463ee0b2 | 2004 | if (lex_brackets == 0) { |
79072805 LW |
2005 | if (lex_fakebrack) { |
2006 | lex_state = LEX_INTERPEND; | |
2007 | bufptr = s; | |
2008 | return yylex(); /* ignore fake brackets */ | |
2009 | } | |
fa83b5b6 | 2010 | if (*s == '-' && s[1] == '>') |
2011 | lex_state = LEX_INTERPENDMAYBE; | |
2012 | else if (*s != '[' && *s != '{') | |
79072805 LW |
2013 | lex_state = LEX_INTERPEND; |
2014 | } | |
2015 | } | |
748a9306 LW |
2016 | if (lex_brackets < lex_fakebrack) { |
2017 | bufptr = s; | |
2018 | lex_fakebrack = 0; | |
2019 | return yylex(); /* ignore fake brackets */ | |
2020 | } | |
79072805 LW |
2021 | force_next('}'); |
2022 | TOKEN(';'); | |
378cc40b LW |
2023 | case '&': |
2024 | s++; | |
2025 | tmp = *s++; | |
2026 | if (tmp == '&') | |
a0d0e21e | 2027 | AOPERATOR(ANDAND); |
378cc40b | 2028 | s--; |
463ee0b2 | 2029 | if (expect == XOPERATOR) { |
fd049845 | 2030 | if (dowarn && isALPHA(*s) && bufptr == linestart) { |
463ee0b2 LW |
2031 | curcop->cop_line--; |
2032 | warn(warn_nosemi); | |
2033 | curcop->cop_line++; | |
2034 | } | |
79072805 | 2035 | BAop(OP_BIT_AND); |
463ee0b2 | 2036 | } |
79072805 LW |
2037 | |
2038 | s = scan_ident(s-1, bufend, tokenbuf, TRUE); | |
463ee0b2 LW |
2039 | if (*tokenbuf) { |
2040 | expect = XOPERATOR; | |
a0d0e21e | 2041 | force_ident(tokenbuf, '&'); |
463ee0b2 | 2042 | } |
79072805 LW |
2043 | else |
2044 | PREREF('&'); | |
c07a80fd | 2045 | yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
2046 | TERM('&'); |
2047 | ||
378cc40b LW |
2048 | case '|': |
2049 | s++; | |
2050 | tmp = *s++; | |
2051 | if (tmp == '|') | |
a0d0e21e | 2052 | AOPERATOR(OROR); |
378cc40b | 2053 | s--; |
79072805 | 2054 | BOop(OP_BIT_OR); |
378cc40b LW |
2055 | case '=': |
2056 | s++; | |
2057 | tmp = *s++; | |
2058 | if (tmp == '=') | |
79072805 LW |
2059 | Eop(OP_EQ); |
2060 | if (tmp == '>') | |
2061 | OPERATOR(','); | |
378cc40b | 2062 | if (tmp == '~') |
79072805 | 2063 | PMop(OP_MATCH); |
463ee0b2 | 2064 | if (dowarn && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp)) |
ff0cee69 | 2065 | warn("Reversed %c= operator",(int)tmp); |
378cc40b | 2066 | s--; |
748a9306 | 2067 | if (expect == XSTATE && isALPHA(tmp) && |
fd049845 | 2068 | (s == linestart+1 || s[-2] == '\n') ) |
748a9306 | 2069 | { |
a5f75d66 AD |
2070 | if (in_eval && !rsfp) { |
2071 | d = bufend; | |
2072 | while (s < d) { | |
2073 | if (*s++ == '\n') { | |
2074 | incline(s); | |
2075 | if (strnEQ(s,"=cut",4)) { | |
2076 | s = strchr(s,'\n'); | |
2077 | if (s) | |
2078 | s++; | |
2079 | else | |
2080 | s = d; | |
2081 | incline(s); | |
2082 | goto retry; | |
2083 | } | |
2084 | } | |
2085 | } | |
2086 | goto retry; | |
2087 | } | |
a0d0e21e LW |
2088 | s = bufend; |
2089 | doextract = TRUE; | |
2090 | goto retry; | |
2091 | } | |
2092 | if (lex_brackets < lex_formbrack) { | |
2093 | char *t; | |
2094 | for (t = s; *t == ' ' || *t == '\t'; t++) ; | |
2095 | if (*t == '\n' || *t == '#') { | |
2096 | s--; | |
2097 | expect = XBLOCK; | |
2098 | goto leftbracket; | |
2099 | } | |
79072805 | 2100 | } |
a0d0e21e LW |
2101 | yylval.ival = 0; |
2102 | OPERATOR(ASSIGNOP); | |
378cc40b LW |
2103 | case '!': |
2104 | s++; | |
2105 | tmp = *s++; | |
2106 | if (tmp == '=') | |
79072805 | 2107 | Eop(OP_NE); |
378cc40b | 2108 | if (tmp == '~') |
79072805 | 2109 | PMop(OP_NOT); |
378cc40b LW |
2110 | s--; |
2111 | OPERATOR('!'); | |
2112 | case '<': | |
79072805 | 2113 | if (expect != XOPERATOR) { |
93a17b20 | 2114 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 2115 | check_uni(); |
79072805 LW |
2116 | if (s[1] == '<') |
2117 | s = scan_heredoc(s); | |
2118 | else | |
2119 | s = scan_inputsymbol(s); | |
2120 | TERM(sublex_start()); | |
378cc40b LW |
2121 | } |
2122 | s++; | |
2123 | tmp = *s++; | |
2124 | if (tmp == '<') | |
79072805 | 2125 | SHop(OP_LEFT_SHIFT); |
395c3793 LW |
2126 | if (tmp == '=') { |
2127 | tmp = *s++; | |
2128 | if (tmp == '>') | |
79072805 | 2129 | Eop(OP_NCMP); |
395c3793 | 2130 | s--; |
79072805 | 2131 | Rop(OP_LE); |
395c3793 | 2132 | } |
378cc40b | 2133 | s--; |
79072805 | 2134 | Rop(OP_LT); |
378cc40b LW |
2135 | case '>': |
2136 | s++; | |
2137 | tmp = *s++; | |
2138 | if (tmp == '>') | |
79072805 | 2139 | SHop(OP_RIGHT_SHIFT); |
378cc40b | 2140 | if (tmp == '=') |
79072805 | 2141 | Rop(OP_GE); |
378cc40b | 2142 | s--; |
79072805 | 2143 | Rop(OP_GT); |
378cc40b LW |
2144 | |
2145 | case '$': | |
bbce6d69 | 2146 | CLINE; |
2147 | ||
2148 | if (expect == XOPERATOR) { | |
2149 | if (lex_formbrack && lex_brackets == lex_formbrack) { | |
2150 | expect = XTERM; | |
2151 | depcom(); | |
2152 | return ','; /* grandfather non-comma-format format */ | |
8990e307 | 2153 | } |
bbce6d69 | 2154 | } |
2155 | ||
2156 | if (s[1] == '#' && (isALPHA(s[2]) || strchr("_{$:", s[2]))) { | |
2157 | if (expect == XOPERATOR) | |
2158 | no_op("Array length", bufptr); | |
2159 | tokenbuf[0] = '@'; | |
2160 | s = scan_ident(s+1, bufend, tokenbuf+1, FALSE); | |
2161 | if (!tokenbuf[1]) | |
a0d0e21e | 2162 | PREREF(DOLSHARP); |
463ee0b2 | 2163 | expect = XOPERATOR; |
bbce6d69 | 2164 | pending_ident = '#'; |
463ee0b2 | 2165 | TOKEN(DOLSHARP); |
79072805 | 2166 | } |
bbce6d69 | 2167 | |
2168 | if (expect == XOPERATOR) | |
2169 | no_op("Scalar", bufptr); | |
2170 | tokenbuf[0] = '$'; | |
93a17b20 | 2171 | s = scan_ident(s, bufend, tokenbuf+1, FALSE); |
bbce6d69 | 2172 | if (!tokenbuf[1]) { |
2173 | if (s == bufend) | |
2174 | yyerror("Final $ should be \\$ or $name"); | |
2175 | PREREF('$'); | |
8990e307 | 2176 | } |
a0d0e21e | 2177 | |
bbce6d69 | 2178 | /* This kludge not intended to be bulletproof. */ |
2179 | if (tokenbuf[1] == '[' && !tokenbuf[2]) { | |
2180 | yylval.opval = newSVOP(OP_CONST, 0, | |
2181 | newSViv((IV)compiling.cop_arybase)); | |
2182 | yylval.opval->op_private = OPpCONST_ARYBASE; | |
2183 | TERM(THING); | |
2184 | } | |
2185 | ||
ff68c719 | 2186 | d = s; |
2187 | if (lex_state == LEX_NORMAL) | |
2188 | s = skipspace(s); | |
2189 | ||
bbce6d69 | 2190 | if ((expect != XREF || oldoldbufptr == last_lop) && intuit_more(s)) { |
2191 | char *t; | |
2192 | if (*s == '[') { | |
2193 | tokenbuf[0] = '@'; | |
2194 | if (dowarn) { | |
2195 | for(t = s + 1; | |
2196 | isSPACE(*t) || isALNUM(*t) || *t == '$'; | |
2197 | t++) ; | |
a0d0e21e LW |
2198 | if (*t++ == ',') { |
2199 | bufptr = skipspace(bufptr); | |
bbce6d69 | 2200 | while (t < bufend && *t != ']') |
2201 | t++; | |
a0d0e21e | 2202 | warn("Multidimensional syntax %.*s not supported", |
bbce6d69 | 2203 | (t - bufptr) + 1, bufptr); |
a0d0e21e LW |
2204 | } |
2205 | } | |
bbce6d69 | 2206 | } |
2207 | else if (*s == '{') { | |
2208 | tokenbuf[0] = '%'; | |
2209 | if (dowarn && strEQ(tokenbuf+1, "SIG") && | |
2210 | (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
2211 | { | |
a0d0e21e | 2212 | char tmpbuf[1024]; |
a0d0e21e LW |
2213 | STRLEN len; |
2214 | for (t++; isSPACE(*t); t++) ; | |
748a9306 LW |
2215 | if (isIDFIRST(*t)) { |
2216 | t = scan_word(t, tmpbuf, TRUE, &len); | |
2217 | if (*t != '(' && perl_get_cv(tmpbuf, FALSE)) | |
2218 | warn("You need to quote \"%s\"", tmpbuf); | |
2219 | } | |
93a17b20 LW |
2220 | } |
2221 | } | |
2f3197b3 | 2222 | } |
bbce6d69 | 2223 | |
2224 | expect = XOPERATOR; | |
ff68c719 | 2225 | if (lex_state == LEX_NORMAL && isSPACE(*d)) { |
bbce6d69 | 2226 | bool islop = (last_lop == oldoldbufptr); |
bbce6d69 | 2227 | if (!islop || last_lop_op == OP_GREPSTART) |
2228 | expect = XOPERATOR; | |
2229 | else if (strchr("$@\"'`q", *s)) | |
2230 | expect = XTERM; /* e.g. print $fh "foo" */ | |
2231 | else if (strchr("&*<%", *s) && isIDFIRST(s[1])) | |
2232 | expect = XTERM; /* e.g. print $fh &sub */ | |
2233 | else if (isDIGIT(*s)) | |
2234 | expect = XTERM; /* e.g. print $fh 3 */ | |
2235 | else if (*s == '.' && isDIGIT(s[1])) | |
2236 | expect = XTERM; /* e.g. print $fh .3 */ | |
2237 | else if (strchr("/?-+", *s) && !isSPACE(s[1])) | |
2238 | expect = XTERM; /* e.g. print $fh -1 */ | |
2239 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2])) | |
2240 | expect = XTERM; /* print $fh <<"EOF" */ | |
2241 | } | |
2242 | pending_ident = '$'; | |
79072805 | 2243 | TOKEN('$'); |
378cc40b LW |
2244 | |
2245 | case '@': | |
8990e307 | 2246 | if (expect == XOPERATOR) |
bbce6d69 | 2247 | no_op("Array", s); |
2248 | tokenbuf[0] = '@'; | |
2249 | s = scan_ident(s, bufend, tokenbuf+1, FALSE); | |
2250 | if (!tokenbuf[1]) { | |
2251 | if (s == bufend) | |
2252 | yyerror("Final @ should be \\@ or @name"); | |
2253 | PREREF('@'); | |
2254 | } | |
ff68c719 | 2255 | if (lex_state == LEX_NORMAL) |
2256 | s = skipspace(s); | |
bbce6d69 | 2257 | if ((expect != XREF || oldoldbufptr == last_lop) && intuit_more(s)) { |
2258 | if (*s == '{') | |
2259 | tokenbuf[0] = '%'; | |
a0d0e21e LW |
2260 | |
2261 | /* Warn about @ where they meant $. */ | |
2262 | if (dowarn) { | |
2263 | if (*s == '[' || *s == '{') { | |
2264 | char *t = s + 1; | |
2265 | while (*t && (isALNUM(*t) || strchr(" \t$#+-'\"", *t))) | |
2266 | t++; | |
2267 | if (*t == '}' || *t == ']') { | |
2268 | t++; | |
2269 | bufptr = skipspace(bufptr); | |
2270 | warn("Scalar value %.*s better written as $%.*s", | |
2271 | t-bufptr, bufptr, t-bufptr-1, bufptr+1); | |
2272 | } | |
93a17b20 LW |
2273 | } |
2274 | } | |
463ee0b2 | 2275 | } |
bbce6d69 | 2276 | pending_ident = '@'; |
79072805 | 2277 | TERM('@'); |
378cc40b LW |
2278 | |
2279 | case '/': /* may either be division or pattern */ | |
2280 | case '?': /* may either be conditional or pattern */ | |
79072805 | 2281 | if (expect != XOPERATOR) { |
2f3197b3 | 2282 | check_uni(); |
79072805 LW |
2283 | s = scan_pat(s); |
2284 | TERM(sublex_start()); | |
378cc40b LW |
2285 | } |
2286 | tmp = *s++; | |
a687059c | 2287 | if (tmp == '/') |
79072805 | 2288 | Mop(OP_DIVIDE); |
378cc40b LW |
2289 | OPERATOR(tmp); |
2290 | ||
2291 | case '.': | |
748a9306 | 2292 | if (lex_formbrack && lex_brackets == lex_formbrack && s[1] == '\n' && |
fd049845 | 2293 | (s == linestart || s[-1] == '\n') ) { |
85e6fe83 | 2294 | lex_formbrack = 0; |
8990e307 | 2295 | expect = XSTATE; |
79072805 LW |
2296 | goto rightbracket; |
2297 | } | |
2298 | if (expect == XOPERATOR || !isDIGIT(s[1])) { | |
378cc40b | 2299 | tmp = *s++; |
a687059c LW |
2300 | if (*s == tmp) { |
2301 | s++; | |
2f3197b3 LW |
2302 | if (*s == tmp) { |
2303 | s++; | |
79072805 | 2304 | yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
2305 | } |
2306 | else | |
79072805 | 2307 | yylval.ival = 0; |
378cc40b | 2308 | OPERATOR(DOTDOT); |
a687059c | 2309 | } |
79072805 | 2310 | if (expect != XOPERATOR) |
2f3197b3 | 2311 | check_uni(); |
79072805 | 2312 | Aop(OP_CONCAT); |
378cc40b LW |
2313 | } |
2314 | /* FALL THROUGH */ | |
2315 | case '0': case '1': case '2': case '3': case '4': | |
2316 | case '5': case '6': case '7': case '8': case '9': | |
79072805 | 2317 | s = scan_num(s); |
8990e307 LW |
2318 | if (expect == XOPERATOR) |
2319 | no_op("Number",s); | |
79072805 LW |
2320 | TERM(THING); |
2321 | ||
2322 | case '\'': | |
8990e307 | 2323 | s = scan_str(s); |
463ee0b2 | 2324 | if (expect == XOPERATOR) { |
a0d0e21e LW |
2325 | if (lex_formbrack && lex_brackets == lex_formbrack) { |
2326 | expect = XTERM; | |
2327 | depcom(); | |
2328 | return ','; /* grandfather non-comma-format format */ | |
2329 | } | |
463ee0b2 | 2330 | else |
8990e307 | 2331 | no_op("String",s); |
463ee0b2 | 2332 | } |
79072805 | 2333 | if (!s) |
85e6fe83 | 2334 | missingterm((char*)0); |
79072805 LW |
2335 | yylval.ival = OP_CONST; |
2336 | TERM(sublex_start()); | |
2337 | ||
2338 | case '"': | |
8990e307 | 2339 | s = scan_str(s); |
463ee0b2 | 2340 | if (expect == XOPERATOR) { |
a0d0e21e LW |
2341 | if (lex_formbrack && lex_brackets == lex_formbrack) { |
2342 | expect = XTERM; | |
2343 | depcom(); | |
2344 | return ','; /* grandfather non-comma-format format */ | |
2345 | } | |
463ee0b2 | 2346 | else |
8990e307 | 2347 | no_op("String",s); |
463ee0b2 | 2348 | } |
79072805 | 2349 | if (!s) |
85e6fe83 | 2350 | missingterm((char*)0); |
4633a7c4 LW |
2351 | yylval.ival = OP_CONST; |
2352 | for (d = SvPV(lex_stuff, len); len; len--, d++) { | |
2353 | if (*d == '$' || *d == '@' || *d == '\\') { | |
2354 | yylval.ival = OP_STRINGIFY; | |
2355 | break; | |
2356 | } | |
2357 | } | |
79072805 LW |
2358 | TERM(sublex_start()); |
2359 | ||
2360 | case '`': | |
2361 | s = scan_str(s); | |
8990e307 LW |
2362 | if (expect == XOPERATOR) |
2363 | no_op("Backticks",s); | |
79072805 | 2364 | if (!s) |
85e6fe83 | 2365 | missingterm((char*)0); |
79072805 LW |
2366 | yylval.ival = OP_BACKTICK; |
2367 | set_csh(); | |
2368 | TERM(sublex_start()); | |
2369 | ||
2370 | case '\\': | |
2371 | s++; | |
748a9306 LW |
2372 | if (dowarn && lex_inwhat && isDIGIT(*s)) |
2373 | warn("Can't use \\%c to mean $%c in expression", *s, *s); | |
8990e307 LW |
2374 | if (expect == XOPERATOR) |
2375 | no_op("Backslash",s); | |
79072805 LW |
2376 | OPERATOR(REFGEN); |
2377 | ||
2378 | case 'x': | |
2379 | if (isDIGIT(s[1]) && expect == XOPERATOR) { | |
2380 | s++; | |
2381 | Mop(OP_REPEAT); | |
2f3197b3 | 2382 | } |
79072805 LW |
2383 | goto keylookup; |
2384 | ||
378cc40b | 2385 | case '_': |
79072805 LW |
2386 | case 'a': case 'A': |
2387 | case 'b': case 'B': | |
2388 | case 'c': case 'C': | |
2389 | case 'd': case 'D': | |
2390 | case 'e': case 'E': | |
2391 | case 'f': case 'F': | |
2392 | case 'g': case 'G': | |
2393 | case 'h': case 'H': | |
2394 | case 'i': case 'I': | |
2395 | case 'j': case 'J': | |
2396 | case 'k': case 'K': | |
2397 | case 'l': case 'L': | |
2398 | case 'm': case 'M': | |
2399 | case 'n': case 'N': | |
2400 | case 'o': case 'O': | |
2401 | case 'p': case 'P': | |
2402 | case 'q': case 'Q': | |
2403 | case 'r': case 'R': | |
2404 | case 's': case 'S': | |
2405 | case 't': case 'T': | |
2406 | case 'u': case 'U': | |
2407 | case 'v': case 'V': | |
2408 | case 'w': case 'W': | |
2409 | case 'X': | |
2410 | case 'y': case 'Y': | |
2411 | case 'z': case 'Z': | |
2412 | ||
2413 | keylookup: | |
748a9306 | 2414 | bufptr = s; |
463ee0b2 | 2415 | s = scan_word(s, tokenbuf, FALSE, &len); |
8ebc5c01 | 2416 | |
2417 | /* Some keywords can be followed by any delimiter, including ':' */ | |
2418 | tmp = (len == 1 && strchr("msyq", tokenbuf[0]) || | |
2419 | len == 2 && ((tokenbuf[0] == 't' && tokenbuf[1] == 'r') || | |
2420 | (tokenbuf[0] == 'q' && | |
2421 | strchr("qwx", tokenbuf[1])))); | |
2422 | ||
2423 | /* x::* is just a word, unless x is "CORE" */ | |
2424 | if (!tmp && *s == ':' && s[1] == ':' && strNE(tokenbuf, "CORE")) | |
4633a7c4 LW |
2425 | goto just_a_word; |
2426 | ||
3643fb5f CS |
2427 | d = s; |
2428 | while (d < bufend && isSPACE(*d)) | |
2429 | d++; /* no comments skipped here, or s### is misparsed */ | |
2430 | ||
2431 | /* Is this a label? */ | |
8ebc5c01 | 2432 | if (!tmp && expect == XSTATE |
2433 | && d < bufend && *d == ':' && *(d + 1) != ':') { | |
2434 | s = d + 1; | |
2435 | yylval.pval = savepv(tokenbuf); | |
2436 | CLINE; | |
2437 | TOKEN(LABEL); | |
3643fb5f CS |
2438 | } |
2439 | ||
2440 | /* Check for keywords */ | |
a0d0e21e | 2441 | tmp = keyword(tokenbuf, len); |
748a9306 LW |
2442 | |
2443 | /* Is this a word before a => operator? */ | |
748a9306 LW |
2444 | if (strnEQ(d,"=>",2)) { |
2445 | CLINE; | |
2446 | if (dowarn && (tmp || perl_get_cv(tokenbuf, FALSE))) | |
2447 | warn("Ambiguous use of %s => resolved to \"%s\" =>", | |
2448 | tokenbuf, tokenbuf); | |
2449 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); | |
2450 | yylval.opval->op_private = OPpCONST_BARE; | |
2451 | TERM(WORD); | |
2452 | } | |
2453 | ||
a0d0e21e LW |
2454 | if (tmp < 0) { /* second-class keyword? */ |
2455 | GV* gv; | |
2456 | if (expect != XOPERATOR && | |
a5f75d66 AD |
2457 | (*s != ':' || s[1] != ':') && |
2458 | (gv = gv_fetchpv(tokenbuf, FALSE, SVt_PVCV)) && | |
2459 | GvIMPORTED_CV(gv)) | |
a0d0e21e LW |
2460 | { |
2461 | tmp = 0; | |
2462 | } | |
2463 | else | |
2464 | tmp = -tmp; | |
2465 | } | |
2466 | ||
2467 | reserved_word: | |
2468 | switch (tmp) { | |
79072805 LW |
2469 | |
2470 | default: /* not a keyword */ | |
93a17b20 LW |
2471 | just_a_word: { |
2472 | GV *gv; | |
748a9306 | 2473 | char lastchar = (bufptr == oldoldbufptr ? 0 : bufptr[-1]); |
8990e307 LW |
2474 | |
2475 | /* Get the rest if it looks like a package qualifier */ | |
2476 | ||
a0d0e21e | 2477 | if (*s == '\'' || *s == ':' && s[1] == ':') { |
463ee0b2 | 2478 | s = scan_word(s, tokenbuf + len, TRUE, &len); |
a0d0e21e LW |
2479 | if (!len) |
2480 | croak("Bad name after %s::", tokenbuf); | |
2481 | } | |
8990e307 | 2482 | |
3643fb5f | 2483 | if (expect == XOPERATOR) { |
fd049845 | 2484 | if (bufptr == linestart) { |
463ee0b2 LW |
2485 | curcop->cop_line--; |
2486 | warn(warn_nosemi); | |
2487 | curcop->cop_line++; | |
2488 | } | |
2489 | else | |
8990e307 | 2490 | no_op("Bare word",s); |
463ee0b2 | 2491 | } |
8990e307 LW |
2492 | |
2493 | /* Look for a subroutine with this name in current package. */ | |
2494 | ||
85e6fe83 | 2495 | gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV); |
8990e307 | 2496 | |
a0d0e21e LW |
2497 | /* Presume this is going to be a bareword of some sort. */ |
2498 | ||
2499 | CLINE; | |
2500 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); | |
2501 | yylval.opval->op_private = OPpCONST_BARE; | |
2502 | ||
8990e307 LW |
2503 | /* See if it's the indirect object for a list operator. */ |
2504 | ||
a0d0e21e LW |
2505 | if (oldoldbufptr && |
2506 | oldoldbufptr < bufptr && | |
2507 | (oldoldbufptr == last_lop || oldoldbufptr == last_uni) && | |
2508 | /* NO SKIPSPACE BEFORE HERE! */ | |
2509 | (expect == XREF || | |
2510 | (opargs[last_lop_op] >> OASHIFT & 7) == OA_FILEREF) ) | |
2511 | { | |
748a9306 LW |
2512 | bool immediate_paren = *s == '('; |
2513 | ||
a0d0e21e LW |
2514 | /* (Now we can afford to cross potential line boundary.) */ |
2515 | s = skipspace(s); | |
2516 | ||
2517 | /* Two barewords in a row may indicate method call. */ | |
2518 | ||
2519 | if ((isALPHA(*s) || *s == '$') && (tmp=intuit_method(s,gv))) | |
2520 | return tmp; | |
2521 | ||
2522 | /* If not a declared subroutine, it's an indirect object. */ | |
2523 | /* (But it's an indir obj regardless for sort.) */ | |
2524 | ||
8e07c86e | 2525 | if ((last_lop_op == OP_SORT || |
8ebc5c01 | 2526 | (!immediate_paren && (!gv || !GvCVu(gv))) ) && |
8e07c86e | 2527 | (last_lop_op != OP_MAPSTART && last_lop_op != OP_GREPSTART)){ |
748a9306 LW |
2528 | expect = (last_lop == oldoldbufptr) ? XTERM : XOPERATOR; |
2529 | goto bareword; | |
93a17b20 LW |
2530 | } |
2531 | } | |
8990e307 LW |
2532 | |
2533 | /* If followed by a paren, it's certainly a subroutine. */ | |
2534 | ||
2535 | expect = XOPERATOR; | |
2536 | s = skipspace(s); | |
93a17b20 | 2537 | if (*s == '(') { |
79072805 | 2538 | CLINE; |
a0d0e21e | 2539 | nextval[nexttoke].opval = yylval.opval; |
463ee0b2 | 2540 | expect = XOPERATOR; |
93a17b20 | 2541 | force_next(WORD); |
c07a80fd | 2542 | yylval.ival = 0; |
463ee0b2 | 2543 | TOKEN('&'); |
79072805 | 2544 | } |
93a17b20 | 2545 | |
a0d0e21e | 2546 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 2547 | |
8ebc5c01 | 2548 | if ((*s == '$' || *s == '{') && (!gv || !GvCVu(gv))) { |
463ee0b2 | 2549 | last_lop = oldbufptr; |
8990e307 | 2550 | last_lop_op = OP_METHOD; |
93a17b20 | 2551 | PREBLOCK(METHOD); |
463ee0b2 LW |
2552 | } |
2553 | ||
8990e307 LW |
2554 | /* If followed by a bareword, see if it looks like indir obj. */ |
2555 | ||
a0d0e21e LW |
2556 | if ((isALPHA(*s) || *s == '$') && (tmp = intuit_method(s,gv))) |
2557 | return tmp; | |
93a17b20 | 2558 | |
8990e307 LW |
2559 | /* Not a method, so call it a subroutine (if defined) */ |
2560 | ||
8ebc5c01 | 2561 | if (gv && GvCVu(gv)) { |
4633a7c4 | 2562 | CV* cv = GvCV(gv); |
8990e307 | 2563 | if (*s == '(') { |
a5f75d66 | 2564 | nextval[nexttoke].opval = yylval.opval; |
8990e307 LW |
2565 | expect = XTERM; |
2566 | force_next(WORD); | |
c07a80fd | 2567 | yylval.ival = 0; |
8990e307 LW |
2568 | TOKEN('&'); |
2569 | } | |
748a9306 | 2570 | if (lastchar == '-') |
c2960299 | 2571 | warn("Ambiguous use of -%s resolved as -&%s()", |
748a9306 | 2572 | tokenbuf, tokenbuf); |
8990e307 | 2573 | last_lop = oldbufptr; |
a0d0e21e | 2574 | last_lop_op = OP_ENTERSUB; |
89bfa8cd | 2575 | /* Check for a constant sub */ |
760ac839 LW |
2576 | { |
2577 | SV *sv = cv_const_sv(cv); | |
89bfa8cd | 2578 | if (sv) { |
2579 | SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv); | |
2580 | ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc(sv); | |
2581 | yylval.opval->op_private = 0; | |
2582 | TOKEN(WORD); | |
2583 | } | |
2584 | } | |
2585 | ||
a5f75d66 AD |
2586 | /* Resolve to GV now. */ |
2587 | op_free(yylval.opval); | |
2588 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
4633a7c4 LW |
2589 | /* Is there a prototype? */ |
2590 | if (SvPOK(cv)) { | |
2591 | STRLEN len; | |
2592 | char *proto = SvPV((SV*)cv, len); | |
2593 | if (!len) | |
2594 | TERM(FUNC0SUB); | |
2595 | if (strEQ(proto, "$")) | |
2596 | OPERATOR(UNIOPSUB); | |
2597 | if (*proto == '&' && *s == '{') { | |
2598 | sv_setpv(subname,"__ANON__"); | |
2599 | PREBLOCK(LSTOPSUB); | |
2600 | } | |
2601 | } | |
a5f75d66 | 2602 | nextval[nexttoke].opval = yylval.opval; |
8990e307 LW |
2603 | expect = XTERM; |
2604 | force_next(WORD); | |
2605 | TOKEN(NOAMP); | |
2606 | } | |
748a9306 LW |
2607 | |
2608 | if (hints & HINT_STRICT_SUBS && | |
2609 | lastchar != '-' && | |
a0d0e21e | 2610 | strnNE(s,"->",2) && |
9b01e405 | 2611 | last_lop_op != OP_TRUNCATE && /* S/F prototype in opcode.pl */ |
a0d0e21e LW |
2612 | last_lop_op != OP_ACCEPT && |
2613 | last_lop_op != OP_PIPE_OP && | |
2614 | last_lop_op != OP_SOCKPAIR) | |
2615 | { | |
2616 | warn( | |
2617 | "Bareword \"%s\" not allowed while \"strict subs\" in use", | |
85e6fe83 LW |
2618 | tokenbuf); |
2619 | ++error_count; | |
2620 | } | |
8990e307 LW |
2621 | |
2622 | /* Call it a bare word */ | |
2623 | ||
748a9306 LW |
2624 | bareword: |
2625 | if (dowarn) { | |
2626 | if (lastchar != '-') { | |
2627 | for (d = tokenbuf; *d && isLOWER(*d); d++) ; | |
2628 | if (!*d) | |
2629 | warn(warn_reserved, tokenbuf); | |
2630 | } | |
2631 | } | |
2632 | if (lastchar && strchr("*%&", lastchar)) { | |
2633 | warn("Operator or semicolon missing before %c%s", | |
2634 | lastchar, tokenbuf); | |
c2960299 | 2635 | warn("Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
2636 | lastchar, lastchar); |
2637 | } | |
93a17b20 | 2638 | TOKEN(WORD); |
79072805 | 2639 | } |
79072805 LW |
2640 | |
2641 | case KEY___LINE__: | |
2642 | case KEY___FILE__: { | |
2643 | if (tokenbuf[2] == 'L') | |
2644 | (void)sprintf(tokenbuf,"%ld",(long)curcop->cop_line); | |
2645 | else | |
463ee0b2 | 2646 | strcpy(tokenbuf, SvPVX(GvSV(curcop->cop_filegv))); |
79072805 LW |
2647 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); |
2648 | TERM(THING); | |
2649 | } | |
2650 | ||
e50aee73 | 2651 | case KEY___DATA__: |
79072805 LW |
2652 | case KEY___END__: { |
2653 | GV *gv; | |
79072805 LW |
2654 | |
2655 | /*SUPPRESS 560*/ | |
a5f75d66 | 2656 | if (rsfp && (!in_eval || tokenbuf[2] == 'D')) { |
e50aee73 AD |
2657 | char dname[256]; |
2658 | char *pname = "main"; | |
2659 | if (tokenbuf[2] == 'D') | |
2660 | pname = HvNAME(curstash ? curstash : defstash); | |
2661 | sprintf(dname,"%s::DATA", pname); | |
2662 | gv = gv_fetchpv(dname,TRUE, SVt_PVIO); | |
a5f75d66 | 2663 | GvMULTI_on(gv); |
79072805 | 2664 | if (!GvIO(gv)) |
a0d0e21e LW |
2665 | GvIOp(gv) = newIO(); |
2666 | IoIFP(GvIOp(gv)) = rsfp; | |
2667 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
2668 | { | |
760ac839 | 2669 | int fd = PerlIO_fileno(rsfp); |
a0d0e21e LW |
2670 | fcntl(fd,F_SETFD,fd >= 3); |
2671 | } | |
79072805 | 2672 | #endif |
fd049845 | 2673 | /* Mark this internal pseudo-handle as clean */ |
2674 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
79072805 | 2675 | if (preprocess) |
a0d0e21e | 2676 | IoTYPE(GvIOp(gv)) = '|'; |
760ac839 | 2677 | else if ((PerlIO*)rsfp == PerlIO_stdin()) |
a0d0e21e | 2678 | IoTYPE(GvIOp(gv)) = '-'; |
79072805 | 2679 | else |
a0d0e21e | 2680 | IoTYPE(GvIOp(gv)) = '<'; |
79072805 LW |
2681 | rsfp = Nullfp; |
2682 | } | |
2683 | goto fake_eof; | |
e929a76b | 2684 | } |
de3bb511 | 2685 | |
8990e307 | 2686 | case KEY_AUTOLOAD: |
ed6116ce | 2687 | case KEY_DESTROY: |
79072805 LW |
2688 | case KEY_BEGIN: |
2689 | case KEY_END: | |
a0d0e21e | 2690 | if (expect == XSTATE) { |
93a17b20 LW |
2691 | s = bufptr; |
2692 | goto really_sub; | |
79072805 LW |
2693 | } |
2694 | goto just_a_word; | |
2695 | ||
a0d0e21e LW |
2696 | case KEY_CORE: |
2697 | if (*s == ':' && s[1] == ':') { | |
2698 | s += 2; | |
748a9306 | 2699 | d = s; |
a0d0e21e LW |
2700 | s = scan_word(s, tokenbuf, FALSE, &len); |
2701 | tmp = keyword(tokenbuf, len); | |
2702 | if (tmp < 0) | |
2703 | tmp = -tmp; | |
2704 | goto reserved_word; | |
2705 | } | |
2706 | goto just_a_word; | |
2707 | ||
463ee0b2 LW |
2708 | case KEY_abs: |
2709 | UNI(OP_ABS); | |
2710 | ||
79072805 LW |
2711 | case KEY_alarm: |
2712 | UNI(OP_ALARM); | |
2713 | ||
2714 | case KEY_accept: | |
a0d0e21e | 2715 | LOP(OP_ACCEPT,XTERM); |
79072805 | 2716 | |
463ee0b2 LW |
2717 | case KEY_and: |
2718 | OPERATOR(ANDOP); | |
2719 | ||
79072805 | 2720 | case KEY_atan2: |
a0d0e21e | 2721 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 2722 | |
79072805 | 2723 | case KEY_bind: |
a0d0e21e | 2724 | LOP(OP_BIND,XTERM); |
79072805 LW |
2725 | |
2726 | case KEY_binmode: | |
2727 | UNI(OP_BINMODE); | |
2728 | ||
2729 | case KEY_bless: | |
a0d0e21e | 2730 | LOP(OP_BLESS,XTERM); |
79072805 LW |
2731 | |
2732 | case KEY_chop: | |
2733 | UNI(OP_CHOP); | |
2734 | ||
2735 | case KEY_continue: | |
2736 | PREBLOCK(CONTINUE); | |
2737 | ||
2738 | case KEY_chdir: | |
85e6fe83 | 2739 | (void)gv_fetchpv("ENV",TRUE, SVt_PVHV); /* may use HOME */ |
79072805 LW |
2740 | UNI(OP_CHDIR); |
2741 | ||
2742 | case KEY_close: | |
2743 | UNI(OP_CLOSE); | |
2744 | ||
2745 | case KEY_closedir: | |
2746 | UNI(OP_CLOSEDIR); | |
2747 | ||
2748 | case KEY_cmp: | |
2749 | Eop(OP_SCMP); | |
2750 | ||
2751 | case KEY_caller: | |
2752 | UNI(OP_CALLER); | |
2753 | ||
2754 | case KEY_crypt: | |
2755 | #ifdef FCRYPT | |
de3bb511 LW |
2756 | if (!cryptseen++) |
2757 | init_des(); | |
a687059c | 2758 | #endif |
a0d0e21e | 2759 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
2760 | |
2761 | case KEY_chmod: | |
748a9306 LW |
2762 | if (dowarn) { |
2763 | for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ; | |
2764 | if (*d != '0' && isDIGIT(*d)) | |
2765 | yywarn("chmod: mode argument is missing initial 0"); | |
2766 | } | |
a0d0e21e | 2767 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
2768 | |
2769 | case KEY_chown: | |
a0d0e21e | 2770 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
2771 | |
2772 | case KEY_connect: | |
a0d0e21e | 2773 | LOP(OP_CONNECT,XTERM); |
79072805 | 2774 | |
463ee0b2 LW |
2775 | case KEY_chr: |
2776 | UNI(OP_CHR); | |
2777 | ||
79072805 LW |
2778 | case KEY_cos: |
2779 | UNI(OP_COS); | |
2780 | ||
2781 | case KEY_chroot: | |
2782 | UNI(OP_CHROOT); | |
2783 | ||
2784 | case KEY_do: | |
2785 | s = skipspace(s); | |
2786 | if (*s == '{') | |
a0d0e21e | 2787 | PRETERMBLOCK(DO); |
79072805 | 2788 | if (*s != '\'') |
a0d0e21e | 2789 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
378cc40b | 2790 | OPERATOR(DO); |
79072805 LW |
2791 | |
2792 | case KEY_die: | |
a0d0e21e LW |
2793 | hints |= HINT_BLOCK_SCOPE; |
2794 | LOP(OP_DIE,XTERM); | |
79072805 LW |
2795 | |
2796 | case KEY_defined: | |
2797 | UNI(OP_DEFINED); | |
2798 | ||
2799 | case KEY_delete: | |
a0d0e21e | 2800 | UNI(OP_DELETE); |
79072805 LW |
2801 | |
2802 | case KEY_dbmopen: | |
a0d0e21e LW |
2803 | gv_fetchpv("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
2804 | LOP(OP_DBMOPEN,XTERM); | |
79072805 LW |
2805 | |
2806 | case KEY_dbmclose: | |
2807 | UNI(OP_DBMCLOSE); | |
2808 | ||
2809 | case KEY_dump: | |
a0d0e21e | 2810 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
2811 | LOOPX(OP_DUMP); |
2812 | ||
2813 | case KEY_else: | |
2814 | PREBLOCK(ELSE); | |
2815 | ||
2816 | case KEY_elsif: | |
2817 | yylval.ival = curcop->cop_line; | |
2818 | OPERATOR(ELSIF); | |
2819 | ||
2820 | case KEY_eq: | |
2821 | Eop(OP_SEQ); | |
2822 | ||
a0d0e21e LW |
2823 | case KEY_exists: |
2824 | UNI(OP_EXISTS); | |
2825 | ||
79072805 LW |
2826 | case KEY_exit: |
2827 | UNI(OP_EXIT); | |
2828 | ||
2829 | case KEY_eval: | |
79072805 | 2830 | s = skipspace(s); |
a0d0e21e | 2831 | expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 2832 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
2833 | |
2834 | case KEY_eof: | |
2835 | UNI(OP_EOF); | |
2836 | ||
2837 | case KEY_exp: | |
2838 | UNI(OP_EXP); | |
2839 | ||
2840 | case KEY_each: | |
2841 | UNI(OP_EACH); | |
2842 | ||
2843 | case KEY_exec: | |
2844 | set_csh(); | |
a0d0e21e | 2845 | LOP(OP_EXEC,XREF); |
79072805 LW |
2846 | |
2847 | case KEY_endhostent: | |
2848 | FUN0(OP_EHOSTENT); | |
2849 | ||
2850 | case KEY_endnetent: | |
2851 | FUN0(OP_ENETENT); | |
2852 | ||
2853 | case KEY_endservent: | |
2854 | FUN0(OP_ESERVENT); | |
2855 | ||
2856 | case KEY_endprotoent: | |
2857 | FUN0(OP_EPROTOENT); | |
2858 | ||
2859 | case KEY_endpwent: | |
2860 | FUN0(OP_EPWENT); | |
2861 | ||
2862 | case KEY_endgrent: | |
2863 | FUN0(OP_EGRENT); | |
2864 | ||
2865 | case KEY_for: | |
2866 | case KEY_foreach: | |
2867 | yylval.ival = curcop->cop_line; | |
55497cff | 2868 | s = skipspace(s); |
2869 | if (isIDFIRST(*s)) { | |
2870 | char *p = s; | |
2871 | if ((bufend - p) >= 3 && | |
2872 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) | |
2873 | p += 2; | |
2874 | p = skipspace(p); | |
2875 | if (isIDFIRST(*p)) | |
2876 | croak("Missing $ on loop variable"); | |
2877 | } | |
79072805 LW |
2878 | OPERATOR(FOR); |
2879 | ||
2880 | case KEY_formline: | |
a0d0e21e | 2881 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
2882 | |
2883 | case KEY_fork: | |
2884 | FUN0(OP_FORK); | |
2885 | ||
2886 | case KEY_fcntl: | |
a0d0e21e | 2887 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
2888 | |
2889 | case KEY_fileno: | |
2890 | UNI(OP_FILENO); | |
2891 | ||
2892 | case KEY_flock: | |
a0d0e21e | 2893 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
2894 | |
2895 | case KEY_gt: | |
2896 | Rop(OP_SGT); | |
2897 | ||
2898 | case KEY_ge: | |
2899 | Rop(OP_SGE); | |
2900 | ||
2901 | case KEY_grep: | |
a0d0e21e | 2902 | LOP(OP_GREPSTART, *s == '(' ? XTERM : XREF); |
79072805 LW |
2903 | |
2904 | case KEY_goto: | |
a0d0e21e | 2905 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
2906 | LOOPX(OP_GOTO); |
2907 | ||
2908 | case KEY_gmtime: | |
2909 | UNI(OP_GMTIME); | |
2910 | ||
2911 | case KEY_getc: | |
2912 | UNI(OP_GETC); | |
2913 | ||
2914 | case KEY_getppid: | |
2915 | FUN0(OP_GETPPID); | |
2916 | ||
2917 | case KEY_getpgrp: | |
2918 | UNI(OP_GETPGRP); | |
2919 | ||
2920 | case KEY_getpriority: | |
a0d0e21e | 2921 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
2922 | |
2923 | case KEY_getprotobyname: | |
2924 | UNI(OP_GPBYNAME); | |
2925 | ||
2926 | case KEY_getprotobynumber: | |
a0d0e21e | 2927 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
2928 | |
2929 | case KEY_getprotoent: | |
2930 | FUN0(OP_GPROTOENT); | |
2931 | ||
2932 | case KEY_getpwent: | |
2933 | FUN0(OP_GPWENT); | |
2934 | ||
2935 | case KEY_getpwnam: | |
ff68c719 | 2936 | UNI(OP_GPWNAM); |
79072805 LW |
2937 | |
2938 | case KEY_getpwuid: | |
ff68c719 | 2939 | UNI(OP_GPWUID); |
79072805 LW |
2940 | |
2941 | case KEY_getpeername: | |
2942 | UNI(OP_GETPEERNAME); | |
2943 | ||
2944 | case KEY_gethostbyname: | |
2945 | UNI(OP_GHBYNAME); | |
2946 | ||
2947 | case KEY_gethostbyaddr: | |
a0d0e21e | 2948 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
2949 | |
2950 | case KEY_gethostent: | |
2951 | FUN0(OP_GHOSTENT); | |
2952 | ||
2953 | case KEY_getnetbyname: | |
2954 | UNI(OP_GNBYNAME); | |
2955 | ||
2956 | case KEY_getnetbyaddr: | |
a0d0e21e | 2957 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
2958 | |
2959 | case KEY_getnetent: | |
2960 | FUN0(OP_GNETENT); | |
2961 | ||
2962 | case KEY_getservbyname: | |
a0d0e21e | 2963 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
2964 | |
2965 | case KEY_getservbyport: | |
a0d0e21e | 2966 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
2967 | |
2968 | case KEY_getservent: | |
2969 | FUN0(OP_GSERVENT); | |
2970 | ||
2971 | case KEY_getsockname: | |
2972 | UNI(OP_GETSOCKNAME); | |
2973 | ||
2974 | case KEY_getsockopt: | |
a0d0e21e | 2975 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
2976 | |
2977 | case KEY_getgrent: | |
2978 | FUN0(OP_GGRENT); | |
2979 | ||
2980 | case KEY_getgrnam: | |
ff68c719 | 2981 | UNI(OP_GGRNAM); |
79072805 LW |
2982 | |
2983 | case KEY_getgrgid: | |
ff68c719 | 2984 | UNI(OP_GGRGID); |
79072805 LW |
2985 | |
2986 | case KEY_getlogin: | |
2987 | FUN0(OP_GETLOGIN); | |
2988 | ||
93a17b20 | 2989 | case KEY_glob: |
a0d0e21e LW |
2990 | set_csh(); |
2991 | LOP(OP_GLOB,XTERM); | |
93a17b20 | 2992 | |
79072805 LW |
2993 | case KEY_hex: |
2994 | UNI(OP_HEX); | |
2995 | ||
2996 | case KEY_if: | |
2997 | yylval.ival = curcop->cop_line; | |
71be2cbc | 2998 | OPERATOR(IF); |
79072805 LW |
2999 | |
3000 | case KEY_index: | |
a0d0e21e | 3001 | LOP(OP_INDEX,XTERM); |
79072805 LW |
3002 | |
3003 | case KEY_int: | |
3004 | UNI(OP_INT); | |
3005 | ||
3006 | case KEY_ioctl: | |
a0d0e21e | 3007 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
3008 | |
3009 | case KEY_join: | |
a0d0e21e | 3010 | LOP(OP_JOIN,XTERM); |
79072805 LW |
3011 | |
3012 | case KEY_keys: | |
3013 | UNI(OP_KEYS); | |
3014 | ||
3015 | case KEY_kill: | |
a0d0e21e | 3016 | LOP(OP_KILL,XTERM); |
79072805 LW |
3017 | |
3018 | case KEY_last: | |
a0d0e21e | 3019 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 3020 | LOOPX(OP_LAST); |
a0d0e21e | 3021 | |
79072805 LW |
3022 | case KEY_lc: |
3023 | UNI(OP_LC); | |
3024 | ||
3025 | case KEY_lcfirst: | |
3026 | UNI(OP_LCFIRST); | |
3027 | ||
3028 | case KEY_local: | |
3029 | OPERATOR(LOCAL); | |
3030 | ||
3031 | case KEY_length: | |
3032 | UNI(OP_LENGTH); | |
3033 | ||
3034 | case KEY_lt: | |
3035 | Rop(OP_SLT); | |
3036 | ||
3037 | case KEY_le: | |
3038 | Rop(OP_SLE); | |
3039 | ||
3040 | case KEY_localtime: | |
3041 | UNI(OP_LOCALTIME); | |
3042 | ||
3043 | case KEY_log: | |
3044 | UNI(OP_LOG); | |
3045 | ||
3046 | case KEY_link: | |
a0d0e21e | 3047 | LOP(OP_LINK,XTERM); |
79072805 LW |
3048 | |
3049 | case KEY_listen: | |
a0d0e21e | 3050 | LOP(OP_LISTEN,XTERM); |
79072805 LW |
3051 | |
3052 | case KEY_lstat: | |
3053 | UNI(OP_LSTAT); | |
3054 | ||
3055 | case KEY_m: | |
3056 | s = scan_pat(s); | |
3057 | TERM(sublex_start()); | |
3058 | ||
a0d0e21e LW |
3059 | case KEY_map: |
3060 | LOP(OP_MAPSTART,XREF); | |
3061 | ||
79072805 | 3062 | case KEY_mkdir: |
a0d0e21e | 3063 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
3064 | |
3065 | case KEY_msgctl: | |
a0d0e21e | 3066 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
3067 | |
3068 | case KEY_msgget: | |
a0d0e21e | 3069 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
3070 | |
3071 | case KEY_msgrcv: | |
a0d0e21e | 3072 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
3073 | |
3074 | case KEY_msgsnd: | |
a0d0e21e | 3075 | LOP(OP_MSGSND,XTERM); |
79072805 | 3076 | |
93a17b20 LW |
3077 | case KEY_my: |
3078 | in_my = TRUE; | |
55497cff | 3079 | OPERATOR(MY); |
93a17b20 | 3080 | |
79072805 | 3081 | case KEY_next: |
a0d0e21e | 3082 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
3083 | LOOPX(OP_NEXT); |
3084 | ||
3085 | case KEY_ne: | |
3086 | Eop(OP_SNE); | |
3087 | ||
a0d0e21e LW |
3088 | case KEY_no: |
3089 | if (expect != XSTATE) | |
3090 | yyerror("\"no\" not allowed in expression"); | |
3091 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
89bfa8cd | 3092 | s = force_version(s); |
a0d0e21e LW |
3093 | yylval.ival = 0; |
3094 | OPERATOR(USE); | |
3095 | ||
3096 | case KEY_not: | |
3097 | OPERATOR(NOTOP); | |
3098 | ||
79072805 | 3099 | case KEY_open: |
93a17b20 LW |
3100 | s = skipspace(s); |
3101 | if (isIDFIRST(*s)) { | |
3102 | char *t; | |
3103 | for (d = s; isALNUM(*d); d++) ; | |
3104 | t = skipspace(d); | |
3105 | if (strchr("|&*+-=!?:.", *t)) | |
3106 | warn("Precedence problem: open %.*s should be open(%.*s)", | |
3107 | d-s,s, d-s,s); | |
3108 | } | |
a0d0e21e | 3109 | LOP(OP_OPEN,XTERM); |
79072805 | 3110 | |
463ee0b2 | 3111 | case KEY_or: |
a0d0e21e | 3112 | yylval.ival = OP_OR; |
463ee0b2 LW |
3113 | OPERATOR(OROP); |
3114 | ||
79072805 LW |
3115 | case KEY_ord: |
3116 | UNI(OP_ORD); | |
3117 | ||
3118 | case KEY_oct: | |
3119 | UNI(OP_OCT); | |
3120 | ||
3121 | case KEY_opendir: | |
a0d0e21e | 3122 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
3123 | |
3124 | case KEY_print: | |
3125 | checkcomma(s,tokenbuf,"filehandle"); | |
a0d0e21e | 3126 | LOP(OP_PRINT,XREF); |
79072805 LW |
3127 | |
3128 | case KEY_printf: | |
3129 | checkcomma(s,tokenbuf,"filehandle"); | |
a0d0e21e | 3130 | LOP(OP_PRTF,XREF); |
79072805 | 3131 | |
c07a80fd | 3132 | case KEY_prototype: |
3133 | UNI(OP_PROTOTYPE); | |
3134 | ||
79072805 | 3135 | case KEY_push: |
a0d0e21e | 3136 | LOP(OP_PUSH,XTERM); |
79072805 LW |
3137 | |
3138 | case KEY_pop: | |
3139 | UNI(OP_POP); | |
3140 | ||
a0d0e21e LW |
3141 | case KEY_pos: |
3142 | UNI(OP_POS); | |
3143 | ||
79072805 | 3144 | case KEY_pack: |
a0d0e21e | 3145 | LOP(OP_PACK,XTERM); |
79072805 LW |
3146 | |
3147 | case KEY_package: | |
a0d0e21e | 3148 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
3149 | OPERATOR(PACKAGE); |
3150 | ||
3151 | case KEY_pipe: | |
a0d0e21e | 3152 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
3153 | |
3154 | case KEY_q: | |
3155 | s = scan_str(s); | |
3156 | if (!s) | |
85e6fe83 | 3157 | missingterm((char*)0); |
79072805 LW |
3158 | yylval.ival = OP_CONST; |
3159 | TERM(sublex_start()); | |
3160 | ||
a0d0e21e LW |
3161 | case KEY_quotemeta: |
3162 | UNI(OP_QUOTEMETA); | |
3163 | ||
8990e307 LW |
3164 | case KEY_qw: |
3165 | s = scan_str(s); | |
3166 | if (!s) | |
85e6fe83 | 3167 | missingterm((char*)0); |
55497cff | 3168 | if (dowarn && SvLEN(lex_stuff)) { |
3169 | d = SvPV_force(lex_stuff, len); | |
3170 | for (; len; --len, ++d) { | |
3171 | if (*d == ',') { | |
3172 | warn("Possible attempt to separate words with commas"); | |
3173 | break; | |
3174 | } | |
3175 | if (*d == '#') { | |
3176 | warn("Possible attempt to put comments in qw() list"); | |
3177 | break; | |
3178 | } | |
3179 | } | |
3180 | } | |
8990e307 LW |
3181 | force_next(')'); |
3182 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, q(lex_stuff)); | |
3183 | lex_stuff = Nullsv; | |
3184 | force_next(THING); | |
3185 | force_next(','); | |
3186 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(" ",1)); | |
3187 | force_next(THING); | |
3188 | force_next('('); | |
a0d0e21e LW |
3189 | yylval.ival = OP_SPLIT; |
3190 | CLINE; | |
3191 | expect = XTERM; | |
3192 | bufptr = s; | |
3193 | last_lop = oldbufptr; | |
3194 | last_lop_op = OP_SPLIT; | |
3195 | return FUNC; | |
8990e307 | 3196 | |
79072805 LW |
3197 | case KEY_qq: |
3198 | s = scan_str(s); | |
3199 | if (!s) | |
85e6fe83 | 3200 | missingterm((char*)0); |
a0d0e21e | 3201 | yylval.ival = OP_STRINGIFY; |
ed6116ce LW |
3202 | if (SvIVX(lex_stuff) == '\'') |
3203 | SvIVX(lex_stuff) = 0; /* qq'$foo' should intepolate */ | |
79072805 LW |
3204 | TERM(sublex_start()); |
3205 | ||
3206 | case KEY_qx: | |
3207 | s = scan_str(s); | |
3208 | if (!s) | |
85e6fe83 | 3209 | missingterm((char*)0); |
79072805 LW |
3210 | yylval.ival = OP_BACKTICK; |
3211 | set_csh(); | |
3212 | TERM(sublex_start()); | |
3213 | ||
3214 | case KEY_return: | |
3215 | OLDLOP(OP_RETURN); | |
3216 | ||
3217 | case KEY_require: | |
748a9306 | 3218 | *tokenbuf = '\0'; |
a0d0e21e | 3219 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
748a9306 | 3220 | if (isIDFIRST(*tokenbuf)) |
89bfa8cd | 3221 | gv_stashpvn(tokenbuf, strlen(tokenbuf), TRUE); |
748a9306 | 3222 | else if (*s == '<') |
a0d0e21e | 3223 | yyerror("<> should be quotes"); |
463ee0b2 | 3224 | UNI(OP_REQUIRE); |
79072805 LW |
3225 | |
3226 | case KEY_reset: | |
3227 | UNI(OP_RESET); | |
3228 | ||
3229 | case KEY_redo: | |
a0d0e21e | 3230 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
3231 | LOOPX(OP_REDO); |
3232 | ||
3233 | case KEY_rename: | |
a0d0e21e | 3234 | LOP(OP_RENAME,XTERM); |
79072805 LW |
3235 | |
3236 | case KEY_rand: | |
3237 | UNI(OP_RAND); | |
3238 | ||
3239 | case KEY_rmdir: | |
3240 | UNI(OP_RMDIR); | |
3241 | ||
3242 | case KEY_rindex: | |
a0d0e21e | 3243 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
3244 | |
3245 | case KEY_read: | |
a0d0e21e | 3246 | LOP(OP_READ,XTERM); |
79072805 LW |
3247 | |
3248 | case KEY_readdir: | |
3249 | UNI(OP_READDIR); | |
3250 | ||
93a17b20 LW |
3251 | case KEY_readline: |
3252 | set_csh(); | |
3253 | UNI(OP_READLINE); | |
3254 | ||
3255 | case KEY_readpipe: | |
3256 | set_csh(); | |
3257 | UNI(OP_BACKTICK); | |
3258 | ||
79072805 LW |
3259 | case KEY_rewinddir: |
3260 | UNI(OP_REWINDDIR); | |
3261 | ||
3262 | case KEY_recv: | |
a0d0e21e | 3263 | LOP(OP_RECV,XTERM); |
79072805 LW |
3264 | |
3265 | case KEY_reverse: | |
a0d0e21e | 3266 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
3267 | |
3268 | case KEY_readlink: | |
3269 | UNI(OP_READLINK); | |
3270 | ||
3271 | case KEY_ref: | |
3272 | UNI(OP_REF); | |
3273 | ||
3274 | case KEY_s: | |
3275 | s = scan_subst(s); | |
3276 | if (yylval.opval) | |
3277 | TERM(sublex_start()); | |
3278 | else | |
3279 | TOKEN(1); /* force error */ | |
3280 | ||
a0d0e21e LW |
3281 | case KEY_chomp: |
3282 | UNI(OP_CHOMP); | |
3283 | ||
79072805 LW |
3284 | case KEY_scalar: |
3285 | UNI(OP_SCALAR); | |
3286 | ||
3287 | case KEY_select: | |
a0d0e21e | 3288 | LOP(OP_SELECT,XTERM); |
79072805 LW |
3289 | |
3290 | case KEY_seek: | |
a0d0e21e | 3291 | LOP(OP_SEEK,XTERM); |
79072805 LW |
3292 | |
3293 | case KEY_semctl: | |
a0d0e21e | 3294 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
3295 | |
3296 | case KEY_semget: | |
a0d0e21e | 3297 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
3298 | |
3299 | case KEY_semop: | |
a0d0e21e | 3300 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
3301 | |
3302 | case KEY_send: | |
a0d0e21e | 3303 | LOP(OP_SEND,XTERM); |
79072805 LW |
3304 | |
3305 | case KEY_setpgrp: | |
a0d0e21e | 3306 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
3307 | |
3308 | case KEY_setpriority: | |
a0d0e21e | 3309 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
3310 | |
3311 | case KEY_sethostent: | |
ff68c719 | 3312 | UNI(OP_SHOSTENT); |
79072805 LW |
3313 | |
3314 | case KEY_setnetent: | |
ff68c719 | 3315 | UNI(OP_SNETENT); |
79072805 LW |
3316 | |
3317 | case KEY_setservent: | |
ff68c719 | 3318 | UNI(OP_SSERVENT); |
79072805 LW |
3319 | |
3320 | case KEY_setprotoent: | |
ff68c719 | 3321 | UNI(OP_SPROTOENT); |
79072805 LW |
3322 | |
3323 | case KEY_setpwent: | |
3324 | FUN0(OP_SPWENT); | |
3325 | ||
3326 | case KEY_setgrent: | |
3327 | FUN0(OP_SGRENT); | |
3328 | ||
3329 | case KEY_seekdir: | |
a0d0e21e | 3330 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
3331 | |
3332 | case KEY_setsockopt: | |
a0d0e21e | 3333 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
3334 | |
3335 | case KEY_shift: | |
3336 | UNI(OP_SHIFT); | |
3337 | ||
3338 | case KEY_shmctl: | |
a0d0e21e | 3339 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
3340 | |
3341 | case KEY_shmget: | |
a0d0e21e | 3342 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
3343 | |
3344 | case KEY_shmread: | |
a0d0e21e | 3345 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
3346 | |
3347 | case KEY_shmwrite: | |
a0d0e21e | 3348 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
3349 | |
3350 | case KEY_shutdown: | |
a0d0e21e | 3351 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
3352 | |
3353 | case KEY_sin: | |
3354 | UNI(OP_SIN); | |
3355 | ||
3356 | case KEY_sleep: | |
3357 | UNI(OP_SLEEP); | |
3358 | ||
3359 | case KEY_socket: | |
a0d0e21e | 3360 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
3361 | |
3362 | case KEY_socketpair: | |
a0d0e21e | 3363 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
3364 | |
3365 | case KEY_sort: | |
3366 | checkcomma(s,tokenbuf,"subroutine name"); | |
3367 | s = skipspace(s); | |
3368 | if (*s == ';' || *s == ')') /* probably a close */ | |
463ee0b2 LW |
3369 | croak("sort is now a reserved word"); |
3370 | expect = XTERM; | |
a0d0e21e LW |
3371 | s = force_word(s,WORD,TRUE,TRUE,TRUE); |
3372 | LOP(OP_SORT,XREF); | |
79072805 LW |
3373 | |
3374 | case KEY_split: | |
a0d0e21e | 3375 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
3376 | |
3377 | case KEY_sprintf: | |
a0d0e21e | 3378 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
3379 | |
3380 | case KEY_splice: | |
a0d0e21e | 3381 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
3382 | |
3383 | case KEY_sqrt: | |
3384 | UNI(OP_SQRT); | |
3385 | ||
3386 | case KEY_srand: | |
3387 | UNI(OP_SRAND); | |
3388 | ||
3389 | case KEY_stat: | |
3390 | UNI(OP_STAT); | |
3391 | ||
3392 | case KEY_study: | |
3393 | sawstudy++; | |
3394 | UNI(OP_STUDY); | |
3395 | ||
3396 | case KEY_substr: | |
a0d0e21e | 3397 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
3398 | |
3399 | case KEY_format: | |
3400 | case KEY_sub: | |
93a17b20 | 3401 | really_sub: |
79072805 | 3402 | s = skipspace(s); |
4633a7c4 | 3403 | |
463ee0b2 LW |
3404 | if (isIDFIRST(*s) || *s == '\'' || *s == ':') { |
3405 | char tmpbuf[128]; | |
4633a7c4 | 3406 | expect = XBLOCK; |
463ee0b2 LW |
3407 | d = scan_word(s, tmpbuf, TRUE, &len); |
3408 | if (strchr(tmpbuf, ':')) | |
3409 | sv_setpv(subname, tmpbuf); | |
3410 | else { | |
3411 | sv_setsv(subname,curstname); | |
8990e307 | 3412 | sv_catpvn(subname,"::",2); |
463ee0b2 LW |
3413 | sv_catpvn(subname,tmpbuf,len); |
3414 | } | |
a0d0e21e | 3415 | s = force_word(s,WORD,FALSE,TRUE,TRUE); |
4633a7c4 | 3416 | s = skipspace(s); |
79072805 | 3417 | } |
4633a7c4 LW |
3418 | else { |
3419 | expect = XTERMBLOCK; | |
79072805 | 3420 | sv_setpv(subname,"?"); |
4633a7c4 LW |
3421 | } |
3422 | ||
3423 | if (tmp == KEY_format) { | |
3424 | s = skipspace(s); | |
3425 | if (*s == '=') | |
3426 | lex_formbrack = lex_brackets + 1; | |
3427 | OPERATOR(FORMAT); | |
3428 | } | |
79072805 | 3429 | |
4633a7c4 LW |
3430 | /* Look for a prototype */ |
3431 | if (*s == '(') { | |
3432 | s = scan_str(s); | |
3433 | if (!s) { | |
3434 | if (lex_stuff) | |
3435 | SvREFCNT_dec(lex_stuff); | |
3436 | lex_stuff = Nullsv; | |
3437 | croak("Prototype not terminated"); | |
3438 | } | |
3439 | nexttoke++; | |
3440 | nextval[1] = nextval[0]; | |
3441 | nexttype[1] = nexttype[0]; | |
3442 | nextval[0].opval = (OP*)newSVOP(OP_CONST, 0, lex_stuff); | |
3443 | nexttype[0] = THING; | |
3444 | if (nexttoke == 1) { | |
3445 | lex_defer = lex_state; | |
3446 | lex_expect = expect; | |
3447 | lex_state = LEX_KNOWNEXT; | |
3448 | } | |
3449 | lex_stuff = Nullsv; | |
3450 | } | |
79072805 | 3451 | |
4633a7c4 LW |
3452 | if (*SvPV(subname,na) == '?') { |
3453 | sv_setpv(subname,"__ANON__"); | |
3454 | TOKEN(ANONSUB); | |
3455 | } | |
3456 | PREBLOCK(SUB); | |
79072805 LW |
3457 | |
3458 | case KEY_system: | |
3459 | set_csh(); | |
a0d0e21e | 3460 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
3461 | |
3462 | case KEY_symlink: | |
a0d0e21e | 3463 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
3464 | |
3465 | case KEY_syscall: | |
a0d0e21e | 3466 | LOP(OP_SYSCALL,XTERM); |
79072805 | 3467 | |
c07a80fd | 3468 | case KEY_sysopen: |
3469 | LOP(OP_SYSOPEN,XTERM); | |
3470 | ||
79072805 | 3471 | case KEY_sysread: |
a0d0e21e | 3472 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
3473 | |
3474 | case KEY_syswrite: | |
a0d0e21e | 3475 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
3476 | |
3477 | case KEY_tr: | |
3478 | s = scan_trans(s); | |
3479 | TERM(sublex_start()); | |
3480 | ||
3481 | case KEY_tell: | |
3482 | UNI(OP_TELL); | |
3483 | ||
3484 | case KEY_telldir: | |
3485 | UNI(OP_TELLDIR); | |
3486 | ||
463ee0b2 | 3487 | case KEY_tie: |
a0d0e21e | 3488 | LOP(OP_TIE,XTERM); |
463ee0b2 | 3489 | |
c07a80fd | 3490 | case KEY_tied: |
3491 | UNI(OP_TIED); | |
3492 | ||
79072805 LW |
3493 | case KEY_time: |
3494 | FUN0(OP_TIME); | |
3495 | ||
3496 | case KEY_times: | |
3497 | FUN0(OP_TMS); | |
3498 | ||
3499 | case KEY_truncate: | |
a0d0e21e | 3500 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
3501 | |
3502 | case KEY_uc: | |
3503 | UNI(OP_UC); | |
3504 | ||
3505 | case KEY_ucfirst: | |
3506 | UNI(OP_UCFIRST); | |
3507 | ||
463ee0b2 LW |
3508 | case KEY_untie: |
3509 | UNI(OP_UNTIE); | |
3510 | ||
79072805 LW |
3511 | case KEY_until: |
3512 | yylval.ival = curcop->cop_line; | |
71be2cbc | 3513 | OPERATOR(UNTIL); |
79072805 LW |
3514 | |
3515 | case KEY_unless: | |
3516 | yylval.ival = curcop->cop_line; | |
71be2cbc | 3517 | OPERATOR(UNLESS); |
79072805 LW |
3518 | |
3519 | case KEY_unlink: | |
a0d0e21e | 3520 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
3521 | |
3522 | case KEY_undef: | |
3523 | UNI(OP_UNDEF); | |
3524 | ||
3525 | case KEY_unpack: | |
a0d0e21e | 3526 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
3527 | |
3528 | case KEY_utime: | |
a0d0e21e | 3529 | LOP(OP_UTIME,XTERM); |
79072805 LW |
3530 | |
3531 | case KEY_umask: | |
748a9306 LW |
3532 | if (dowarn) { |
3533 | for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ; | |
3534 | if (*d != '0' && isDIGIT(*d)) | |
3535 | yywarn("umask: argument is missing initial 0"); | |
3536 | } | |
79072805 LW |
3537 | UNI(OP_UMASK); |
3538 | ||
3539 | case KEY_unshift: | |
a0d0e21e LW |
3540 | LOP(OP_UNSHIFT,XTERM); |
3541 | ||
3542 | case KEY_use: | |
3543 | if (expect != XSTATE) | |
3544 | yyerror("\"use\" not allowed in expression"); | |
89bfa8cd | 3545 | s = skipspace(s); |
3546 | if(isDIGIT(*s)) { | |
3547 | s = force_version(s); | |
3548 | if(*s == ';' || (s = skipspace(s), *s == ';')) { | |
3549 | nextval[nexttoke].opval = Nullop; | |
3550 | force_next(WORD); | |
3551 | } | |
3552 | } | |
3553 | else { | |
3554 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3555 | s = force_version(s); | |
3556 | } | |
a0d0e21e LW |
3557 | yylval.ival = 1; |
3558 | OPERATOR(USE); | |
79072805 LW |
3559 | |
3560 | case KEY_values: | |
3561 | UNI(OP_VALUES); | |
3562 | ||
3563 | case KEY_vec: | |
3564 | sawvec = TRUE; | |
a0d0e21e | 3565 | LOP(OP_VEC,XTERM); |
79072805 LW |
3566 | |
3567 | case KEY_while: | |
3568 | yylval.ival = curcop->cop_line; | |
71be2cbc | 3569 | OPERATOR(WHILE); |
79072805 LW |
3570 | |
3571 | case KEY_warn: | |
a0d0e21e LW |
3572 | hints |= HINT_BLOCK_SCOPE; |
3573 | LOP(OP_WARN,XTERM); | |
79072805 LW |
3574 | |
3575 | case KEY_wait: | |
3576 | FUN0(OP_WAIT); | |
3577 | ||
3578 | case KEY_waitpid: | |
a0d0e21e | 3579 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
3580 | |
3581 | case KEY_wantarray: | |
3582 | FUN0(OP_WANTARRAY); | |
3583 | ||
3584 | case KEY_write: | |
85e6fe83 | 3585 | gv_fetchpv("\f",TRUE, SVt_PV); /* Make sure $^L is defined */ |
79072805 LW |
3586 | UNI(OP_ENTERWRITE); |
3587 | ||
3588 | case KEY_x: | |
3589 | if (expect == XOPERATOR) | |
3590 | Mop(OP_REPEAT); | |
3591 | check_uni(); | |
3592 | goto just_a_word; | |
3593 | ||
a0d0e21e LW |
3594 | case KEY_xor: |
3595 | yylval.ival = OP_XOR; | |
3596 | OPERATOR(OROP); | |
3597 | ||
79072805 LW |
3598 | case KEY_y: |
3599 | s = scan_trans(s); | |
3600 | TERM(sublex_start()); | |
3601 | } | |
3602 | } | |
3603 | } | |
3604 | ||
3605 | I32 | |
3606 | keyword(d, len) | |
3607 | register char *d; | |
3608 | I32 len; | |
3609 | { | |
3610 | switch (*d) { | |
3611 | case '_': | |
3612 | if (d[1] == '_') { | |
a0d0e21e LW |
3613 | if (strEQ(d,"__LINE__")) return -KEY___LINE__; |
3614 | if (strEQ(d,"__FILE__")) return -KEY___FILE__; | |
e50aee73 | 3615 | if (strEQ(d,"__DATA__")) return KEY___DATA__; |
79072805 LW |
3616 | if (strEQ(d,"__END__")) return KEY___END__; |
3617 | } | |
3618 | break; | |
8990e307 LW |
3619 | case 'A': |
3620 | if (strEQ(d,"AUTOLOAD")) return KEY_AUTOLOAD; | |
3621 | break; | |
79072805 | 3622 | case 'a': |
463ee0b2 LW |
3623 | switch (len) { |
3624 | case 3: | |
a0d0e21e LW |
3625 | if (strEQ(d,"and")) return -KEY_and; |
3626 | if (strEQ(d,"abs")) return -KEY_abs; | |
85e6fe83 | 3627 | break; |
463ee0b2 | 3628 | case 5: |
a0d0e21e LW |
3629 | if (strEQ(d,"alarm")) return -KEY_alarm; |
3630 | if (strEQ(d,"atan2")) return -KEY_atan2; | |
463ee0b2 LW |
3631 | break; |
3632 | case 6: | |
a0d0e21e | 3633 | if (strEQ(d,"accept")) return -KEY_accept; |
463ee0b2 LW |
3634 | break; |
3635 | } | |
79072805 LW |
3636 | break; |
3637 | case 'B': | |
3638 | if (strEQ(d,"BEGIN")) return KEY_BEGIN; | |
93a17b20 | 3639 | break; |
79072805 | 3640 | case 'b': |
a0d0e21e LW |
3641 | if (strEQ(d,"bless")) return -KEY_bless; |
3642 | if (strEQ(d,"bind")) return -KEY_bind; | |
3643 | if (strEQ(d,"binmode")) return -KEY_binmode; | |
3644 | break; | |
3645 | case 'C': | |
3646 | if (strEQ(d,"CORE")) return -KEY_CORE; | |
79072805 LW |
3647 | break; |
3648 | case 'c': | |
3649 | switch (len) { | |
3650 | case 3: | |
a0d0e21e LW |
3651 | if (strEQ(d,"cmp")) return -KEY_cmp; |
3652 | if (strEQ(d,"chr")) return -KEY_chr; | |
3653 | if (strEQ(d,"cos")) return -KEY_cos; | |
79072805 LW |
3654 | break; |
3655 | case 4: | |
3656 | if (strEQ(d,"chop")) return KEY_chop; | |
3657 | break; | |
3658 | case 5: | |
a0d0e21e LW |
3659 | if (strEQ(d,"close")) return -KEY_close; |
3660 | if (strEQ(d,"chdir")) return -KEY_chdir; | |
3661 | if (strEQ(d,"chomp")) return KEY_chomp; | |
3662 | if (strEQ(d,"chmod")) return -KEY_chmod; | |
3663 | if (strEQ(d,"chown")) return -KEY_chown; | |
3664 | if (strEQ(d,"crypt")) return -KEY_crypt; | |
79072805 LW |
3665 | break; |
3666 | case 6: | |
a0d0e21e LW |
3667 | if (strEQ(d,"chroot")) return -KEY_chroot; |
3668 | if (strEQ(d,"caller")) return -KEY_caller; | |
79072805 LW |
3669 | break; |
3670 | case 7: | |
a0d0e21e | 3671 | if (strEQ(d,"connect")) return -KEY_connect; |
79072805 LW |
3672 | break; |
3673 | case 8: | |
a0d0e21e LW |
3674 | if (strEQ(d,"closedir")) return -KEY_closedir; |
3675 | if (strEQ(d,"continue")) return -KEY_continue; | |
79072805 LW |
3676 | break; |
3677 | } | |
3678 | break; | |
ed6116ce LW |
3679 | case 'D': |
3680 | if (strEQ(d,"DESTROY")) return KEY_DESTROY; | |
3681 | break; | |
79072805 LW |
3682 | case 'd': |
3683 | switch (len) { | |
3684 | case 2: | |
3685 | if (strEQ(d,"do")) return KEY_do; | |
3686 | break; | |
3687 | case 3: | |
a0d0e21e | 3688 | if (strEQ(d,"die")) return -KEY_die; |
79072805 LW |
3689 | break; |
3690 | case 4: | |
a0d0e21e | 3691 | if (strEQ(d,"dump")) return -KEY_dump; |
79072805 LW |
3692 | break; |
3693 | case 6: | |
3694 | if (strEQ(d,"delete")) return KEY_delete; | |
3695 | break; | |
3696 | case 7: | |
3697 | if (strEQ(d,"defined")) return KEY_defined; | |
a0d0e21e | 3698 | if (strEQ(d,"dbmopen")) return -KEY_dbmopen; |
79072805 LW |
3699 | break; |
3700 | case 8: | |
a0d0e21e | 3701 | if (strEQ(d,"dbmclose")) return -KEY_dbmclose; |
79072805 LW |
3702 | break; |
3703 | } | |
3704 | break; | |
3705 | case 'E': | |
a0d0e21e | 3706 | if (strEQ(d,"EQ")) { deprecate(d); return -KEY_eq;} |
79072805 LW |
3707 | if (strEQ(d,"END")) return KEY_END; |
3708 | break; | |
3709 | case 'e': | |
3710 | switch (len) { | |
3711 | case 2: | |
a0d0e21e | 3712 | if (strEQ(d,"eq")) return -KEY_eq; |
79072805 LW |
3713 | break; |
3714 | case 3: | |
a0d0e21e LW |
3715 | if (strEQ(d,"eof")) return -KEY_eof; |
3716 | if (strEQ(d,"exp")) return -KEY_exp; | |
79072805 LW |
3717 | break; |
3718 | case 4: | |
3719 | if (strEQ(d,"else")) return KEY_else; | |
a0d0e21e | 3720 | if (strEQ(d,"exit")) return -KEY_exit; |
79072805 | 3721 | if (strEQ(d,"eval")) return KEY_eval; |
a0d0e21e | 3722 | if (strEQ(d,"exec")) return -KEY_exec; |
79072805 LW |
3723 | if (strEQ(d,"each")) return KEY_each; |
3724 | break; | |
3725 | case 5: | |
3726 | if (strEQ(d,"elsif")) return KEY_elsif; | |
3727 | break; | |
a0d0e21e LW |
3728 | case 6: |
3729 | if (strEQ(d,"exists")) return KEY_exists; | |
4633a7c4 | 3730 | if (strEQ(d,"elseif")) warn("elseif should be elsif"); |
a0d0e21e | 3731 | break; |
79072805 | 3732 | case 8: |
a0d0e21e LW |
3733 | if (strEQ(d,"endgrent")) return -KEY_endgrent; |
3734 | if (strEQ(d,"endpwent")) return -KEY_endpwent; | |
79072805 LW |
3735 | break; |
3736 | case 9: | |
a0d0e21e | 3737 | if (strEQ(d,"endnetent")) return -KEY_endnetent; |
79072805 LW |
3738 | break; |
3739 | case 10: | |
a0d0e21e LW |
3740 | if (strEQ(d,"endhostent")) return -KEY_endhostent; |
3741 | if (strEQ(d,"endservent")) return -KEY_endservent; | |
79072805 LW |
3742 | break; |
3743 | case 11: | |
a0d0e21e | 3744 | if (strEQ(d,"endprotoent")) return -KEY_endprotoent; |
79072805 | 3745 | break; |
a687059c | 3746 | } |
a687059c | 3747 | break; |
79072805 LW |
3748 | case 'f': |
3749 | switch (len) { | |
3750 | case 3: | |
3751 | if (strEQ(d,"for")) return KEY_for; | |
3752 | break; | |
3753 | case 4: | |
a0d0e21e | 3754 | if (strEQ(d,"fork")) return -KEY_fork; |
79072805 LW |
3755 | break; |
3756 | case 5: | |
a0d0e21e LW |
3757 | if (strEQ(d,"fcntl")) return -KEY_fcntl; |
3758 | if (strEQ(d,"flock")) return -KEY_flock; | |
79072805 LW |
3759 | break; |
3760 | case 6: | |
3761 | if (strEQ(d,"format")) return KEY_format; | |
a0d0e21e | 3762 | if (strEQ(d,"fileno")) return -KEY_fileno; |
79072805 LW |
3763 | break; |
3764 | case 7: | |
3765 | if (strEQ(d,"foreach")) return KEY_foreach; | |
3766 | break; | |
3767 | case 8: | |
a0d0e21e | 3768 | if (strEQ(d,"formline")) return -KEY_formline; |
79072805 | 3769 | break; |
378cc40b | 3770 | } |
a687059c | 3771 | break; |
79072805 LW |
3772 | case 'G': |
3773 | if (len == 2) { | |
a0d0e21e LW |
3774 | if (strEQ(d,"GT")) { deprecate(d); return -KEY_gt;} |
3775 | if (strEQ(d,"GE")) { deprecate(d); return -KEY_ge;} | |
9f68db38 | 3776 | } |
a687059c | 3777 | break; |
79072805 | 3778 | case 'g': |
a687059c LW |
3779 | if (strnEQ(d,"get",3)) { |
3780 | d += 3; | |
3781 | if (*d == 'p') { | |
79072805 LW |
3782 | switch (len) { |
3783 | case 7: | |
a0d0e21e LW |
3784 | if (strEQ(d,"ppid")) return -KEY_getppid; |
3785 | if (strEQ(d,"pgrp")) return -KEY_getpgrp; | |
79072805 LW |
3786 | break; |
3787 | case 8: | |
a0d0e21e LW |
3788 | if (strEQ(d,"pwent")) return -KEY_getpwent; |
3789 | if (strEQ(d,"pwnam")) return -KEY_getpwnam; | |
3790 | if (strEQ(d,"pwuid")) return -KEY_getpwuid; | |
79072805 LW |
3791 | break; |
3792 | case 11: | |
a0d0e21e LW |
3793 | if (strEQ(d,"peername")) return -KEY_getpeername; |
3794 | if (strEQ(d,"protoent")) return -KEY_getprotoent; | |
3795 | if (strEQ(d,"priority")) return -KEY_getpriority; | |
79072805 LW |
3796 | break; |
3797 | case 14: | |
a0d0e21e | 3798 | if (strEQ(d,"protobyname")) return -KEY_getprotobyname; |
79072805 LW |
3799 | break; |
3800 | case 16: | |
a0d0e21e | 3801 | if (strEQ(d,"protobynumber"))return -KEY_getprotobynumber; |
79072805 LW |
3802 | break; |
3803 | } | |
a687059c LW |
3804 | } |
3805 | else if (*d == 'h') { | |
a0d0e21e LW |
3806 | if (strEQ(d,"hostbyname")) return -KEY_gethostbyname; |
3807 | if (strEQ(d,"hostbyaddr")) return -KEY_gethostbyaddr; | |
3808 | if (strEQ(d,"hostent")) return -KEY_gethostent; | |
a687059c LW |
3809 | } |
3810 | else if (*d == 'n') { | |
a0d0e21e LW |
3811 | if (strEQ(d,"netbyname")) return -KEY_getnetbyname; |
3812 | if (strEQ(d,"netbyaddr")) return -KEY_getnetbyaddr; | |
3813 | if (strEQ(d,"netent")) return -KEY_getnetent; | |
a687059c LW |
3814 | } |
3815 | else if (*d == 's') { | |
a0d0e21e LW |
3816 | if (strEQ(d,"servbyname")) return -KEY_getservbyname; |
3817 | if (strEQ(d,"servbyport")) return -KEY_getservbyport; | |
3818 | if (strEQ(d,"servent")) return -KEY_getservent; | |
3819 | if (strEQ(d,"sockname")) return -KEY_getsockname; | |
3820 | if (strEQ(d,"sockopt")) return -KEY_getsockopt; | |
a687059c LW |
3821 | } |
3822 | else if (*d == 'g') { | |
a0d0e21e LW |
3823 | if (strEQ(d,"grent")) return -KEY_getgrent; |
3824 | if (strEQ(d,"grnam")) return -KEY_getgrnam; | |
3825 | if (strEQ(d,"grgid")) return -KEY_getgrgid; | |
a687059c LW |
3826 | } |
3827 | else if (*d == 'l') { | |
a0d0e21e | 3828 | if (strEQ(d,"login")) return -KEY_getlogin; |
a687059c | 3829 | } |
a0d0e21e | 3830 | else if (strEQ(d,"c")) return -KEY_getc; |
79072805 | 3831 | break; |
a687059c | 3832 | } |
79072805 LW |
3833 | switch (len) { |
3834 | case 2: | |
a0d0e21e LW |
3835 | if (strEQ(d,"gt")) return -KEY_gt; |
3836 | if (strEQ(d,"ge")) return -KEY_ge; | |
79072805 LW |
3837 | break; |
3838 | case 4: | |
3839 | if (strEQ(d,"grep")) return KEY_grep; | |
3840 | if (strEQ(d,"goto")) return KEY_goto; | |
a0d0e21e | 3841 | if (strEQ(d,"glob")) return -KEY_glob; |
79072805 LW |
3842 | break; |
3843 | case 6: | |
a0d0e21e | 3844 | if (strEQ(d,"gmtime")) return -KEY_gmtime; |
79072805 | 3845 | break; |
378cc40b | 3846 | } |
a687059c | 3847 | break; |
79072805 | 3848 | case 'h': |
a0d0e21e | 3849 | if (strEQ(d,"hex")) return -KEY_hex; |
a687059c | 3850 | break; |
79072805 LW |
3851 | case 'i': |
3852 | switch (len) { | |
3853 | case 2: | |
3854 | if (strEQ(d,"if")) return KEY_if; | |
3855 | break; | |
3856 | case 3: | |
a0d0e21e | 3857 | if (strEQ(d,"int")) return -KEY_int; |
79072805 LW |
3858 | break; |
3859 | case 5: | |
a0d0e21e LW |
3860 | if (strEQ(d,"index")) return -KEY_index; |
3861 | if (strEQ(d,"ioctl")) return -KEY_ioctl; | |
79072805 LW |
3862 | break; |
3863 | } | |
a687059c | 3864 | break; |
79072805 | 3865 | case 'j': |
a0d0e21e | 3866 | if (strEQ(d,"join")) return -KEY_join; |
a687059c | 3867 | break; |
79072805 LW |
3868 | case 'k': |
3869 | if (len == 4) { | |
3870 | if (strEQ(d,"keys")) return KEY_keys; | |
a0d0e21e | 3871 | if (strEQ(d,"kill")) return -KEY_kill; |
663a0e37 | 3872 | } |
79072805 LW |
3873 | break; |
3874 | case 'L': | |
3875 | if (len == 2) { | |
a0d0e21e LW |
3876 | if (strEQ(d,"LT")) { deprecate(d); return -KEY_lt;} |
3877 | if (strEQ(d,"LE")) { deprecate(d); return -KEY_le;} | |
378cc40b | 3878 | } |
79072805 LW |
3879 | break; |
3880 | case 'l': | |
3881 | switch (len) { | |
3882 | case 2: | |
a0d0e21e LW |
3883 | if (strEQ(d,"lt")) return -KEY_lt; |
3884 | if (strEQ(d,"le")) return -KEY_le; | |
3885 | if (strEQ(d,"lc")) return -KEY_lc; | |
79072805 LW |
3886 | break; |
3887 | case 3: | |
a0d0e21e | 3888 | if (strEQ(d,"log")) return -KEY_log; |
79072805 LW |
3889 | break; |
3890 | case 4: | |
3891 | if (strEQ(d,"last")) return KEY_last; | |
a0d0e21e | 3892 | if (strEQ(d,"link")) return -KEY_link; |
395c3793 | 3893 | break; |
79072805 LW |
3894 | case 5: |
3895 | if (strEQ(d,"local")) return KEY_local; | |
a0d0e21e | 3896 | if (strEQ(d,"lstat")) return -KEY_lstat; |
79072805 LW |
3897 | break; |
3898 | case 6: | |
a0d0e21e LW |
3899 | if (strEQ(d,"length")) return -KEY_length; |
3900 | if (strEQ(d,"listen")) return -KEY_listen; | |
79072805 LW |
3901 | break; |
3902 | case 7: | |
a0d0e21e | 3903 | if (strEQ(d,"lcfirst")) return -KEY_lcfirst; |
79072805 LW |
3904 | break; |
3905 | case 9: | |
a0d0e21e | 3906 | if (strEQ(d,"localtime")) return -KEY_localtime; |
395c3793 LW |
3907 | break; |
3908 | } | |
a687059c | 3909 | break; |
79072805 LW |
3910 | case 'm': |
3911 | switch (len) { | |
3912 | case 1: return KEY_m; | |
93a17b20 LW |
3913 | case 2: |
3914 | if (strEQ(d,"my")) return KEY_my; | |
3915 | break; | |
a0d0e21e LW |
3916 | case 3: |
3917 | if (strEQ(d,"map")) return KEY_map; | |
3918 | break; | |
79072805 | 3919 | case 5: |
a0d0e21e | 3920 | if (strEQ(d,"mkdir")) return -KEY_mkdir; |
79072805 LW |
3921 | break; |
3922 | case 6: | |
a0d0e21e LW |
3923 | if (strEQ(d,"msgctl")) return -KEY_msgctl; |
3924 | if (strEQ(d,"msgget")) return -KEY_msgget; | |
3925 | if (strEQ(d,"msgrcv")) return -KEY_msgrcv; | |
3926 | if (strEQ(d,"msgsnd")) return -KEY_msgsnd; | |
79072805 LW |
3927 | break; |
3928 | } | |
a687059c | 3929 | break; |
79072805 | 3930 | case 'N': |
a0d0e21e | 3931 | if (strEQ(d,"NE")) { deprecate(d); return -KEY_ne;} |
a687059c | 3932 | break; |
79072805 LW |
3933 | case 'n': |
3934 | if (strEQ(d,"next")) return KEY_next; | |
a0d0e21e LW |
3935 | if (strEQ(d,"ne")) return -KEY_ne; |
3936 | if (strEQ(d,"not")) return -KEY_not; | |
3937 | if (strEQ(d,"no")) return KEY_no; | |
a687059c | 3938 | break; |
79072805 LW |
3939 | case 'o': |
3940 | switch (len) { | |
463ee0b2 | 3941 | case 2: |
a0d0e21e | 3942 | if (strEQ(d,"or")) return -KEY_or; |
463ee0b2 | 3943 | break; |
79072805 | 3944 | case 3: |
a0d0e21e LW |
3945 | if (strEQ(d,"ord")) return -KEY_ord; |
3946 | if (strEQ(d,"oct")) return -KEY_oct; | |
79072805 LW |
3947 | break; |
3948 | case 4: | |
a0d0e21e | 3949 | if (strEQ(d,"open")) return -KEY_open; |
79072805 LW |
3950 | break; |
3951 | case 7: | |
a0d0e21e | 3952 | if (strEQ(d,"opendir")) return -KEY_opendir; |
79072805 | 3953 | break; |
fe14fcc3 | 3954 | } |
a687059c | 3955 | break; |
79072805 LW |
3956 | case 'p': |
3957 | switch (len) { | |
3958 | case 3: | |
3959 | if (strEQ(d,"pop")) return KEY_pop; | |
a0d0e21e | 3960 | if (strEQ(d,"pos")) return KEY_pos; |
79072805 LW |
3961 | break; |
3962 | case 4: | |
3963 | if (strEQ(d,"push")) return KEY_push; | |
a0d0e21e LW |
3964 | if (strEQ(d,"pack")) return -KEY_pack; |
3965 | if (strEQ(d,"pipe")) return -KEY_pipe; | |
79072805 LW |
3966 | break; |
3967 | case 5: | |
3968 | if (strEQ(d,"print")) return KEY_print; | |
3969 | break; | |
3970 | case 6: | |
3971 | if (strEQ(d,"printf")) return KEY_printf; | |
3972 | break; | |
3973 | case 7: | |
3974 | if (strEQ(d,"package")) return KEY_package; | |
3975 | break; | |
c07a80fd | 3976 | case 9: |
3977 | if (strEQ(d,"prototype")) return KEY_prototype; | |
663a0e37 | 3978 | } |
79072805 LW |
3979 | break; |
3980 | case 'q': | |
3981 | if (len <= 2) { | |
3982 | if (strEQ(d,"q")) return KEY_q; | |
3983 | if (strEQ(d,"qq")) return KEY_qq; | |
8990e307 | 3984 | if (strEQ(d,"qw")) return KEY_qw; |
79072805 | 3985 | if (strEQ(d,"qx")) return KEY_qx; |
663a0e37 | 3986 | } |
a0d0e21e | 3987 | else if (strEQ(d,"quotemeta")) return -KEY_quotemeta; |
79072805 LW |
3988 | break; |
3989 | case 'r': | |
3990 | switch (len) { | |
3991 | case 3: | |
a0d0e21e | 3992 | if (strEQ(d,"ref")) return -KEY_ref; |
79072805 LW |
3993 | break; |
3994 | case 4: | |
a0d0e21e LW |
3995 | if (strEQ(d,"read")) return -KEY_read; |
3996 | if (strEQ(d,"rand")) return -KEY_rand; | |
3997 | if (strEQ(d,"recv")) return -KEY_recv; | |
79072805 LW |
3998 | if (strEQ(d,"redo")) return KEY_redo; |
3999 | break; | |
4000 | case 5: | |
a0d0e21e LW |
4001 | if (strEQ(d,"rmdir")) return -KEY_rmdir; |
4002 | if (strEQ(d,"reset")) return -KEY_reset; | |
79072805 LW |
4003 | break; |
4004 | case 6: | |
4005 | if (strEQ(d,"return")) return KEY_return; | |
a0d0e21e LW |
4006 | if (strEQ(d,"rename")) return -KEY_rename; |
4007 | if (strEQ(d,"rindex")) return -KEY_rindex; | |
79072805 LW |
4008 | break; |
4009 | case 7: | |
a0d0e21e LW |
4010 | if (strEQ(d,"require")) return -KEY_require; |
4011 | if (strEQ(d,"reverse")) return -KEY_reverse; | |
4012 | if (strEQ(d,"readdir")) return -KEY_readdir; | |
79072805 LW |
4013 | break; |
4014 | case 8: | |
a0d0e21e LW |
4015 | if (strEQ(d,"readlink")) return -KEY_readlink; |
4016 | if (strEQ(d,"readline")) return -KEY_readline; | |
4017 | if (strEQ(d,"readpipe")) return -KEY_readpipe; | |
79072805 LW |
4018 | break; |
4019 | case 9: | |
a0d0e21e | 4020 | if (strEQ(d,"rewinddir")) return -KEY_rewinddir; |
79072805 | 4021 | break; |
a687059c | 4022 | } |
79072805 LW |
4023 | break; |
4024 | case 's': | |
a687059c | 4025 | switch (d[1]) { |
79072805 | 4026 | case 0: return KEY_s; |
a687059c | 4027 | case 'c': |
79072805 | 4028 | if (strEQ(d,"scalar")) return KEY_scalar; |
a687059c LW |
4029 | break; |
4030 | case 'e': | |
79072805 LW |
4031 | switch (len) { |
4032 | case 4: | |
a0d0e21e LW |
4033 | if (strEQ(d,"seek")) return -KEY_seek; |
4034 | if (strEQ(d,"send")) return -KEY_send; | |
79072805 LW |
4035 | break; |
4036 | case 5: | |
a0d0e21e | 4037 | if (strEQ(d,"semop")) return -KEY_semop; |
79072805 LW |
4038 | break; |
4039 | case 6: | |
a0d0e21e LW |
4040 | if (strEQ(d,"select")) return -KEY_select; |
4041 | if (strEQ(d,"semctl")) return -KEY_semctl; | |
4042 | if (strEQ(d,"semget")) return -KEY_semget; | |
79072805 LW |
4043 | break; |
4044 | case 7: | |
a0d0e21e LW |
4045 | if (strEQ(d,"setpgrp")) return -KEY_setpgrp; |
4046 | if (strEQ(d,"seekdir")) return -KEY_seekdir; | |
79072805 LW |
4047 | break; |
4048 | case 8: | |
a0d0e21e LW |
4049 | if (strEQ(d,"setpwent")) return -KEY_setpwent; |
4050 | if (strEQ(d,"setgrent")) return -KEY_setgrent; | |
79072805 LW |
4051 | break; |
4052 | case 9: | |
a0d0e21e | 4053 | if (strEQ(d,"setnetent")) return -KEY_setnetent; |
79072805 LW |
4054 | break; |
4055 | case 10: | |
a0d0e21e LW |
4056 | if (strEQ(d,"setsockopt")) return -KEY_setsockopt; |
4057 | if (strEQ(d,"sethostent")) return -KEY_sethostent; | |
4058 | if (strEQ(d,"setservent")) return -KEY_setservent; | |
79072805 LW |
4059 | break; |
4060 | case 11: | |
a0d0e21e LW |
4061 | if (strEQ(d,"setpriority")) return -KEY_setpriority; |
4062 | if (strEQ(d,"setprotoent")) return -KEY_setprotoent; | |
79072805 LW |
4063 | break; |
4064 | } | |
a687059c LW |
4065 | break; |
4066 | case 'h': | |
79072805 LW |
4067 | switch (len) { |
4068 | case 5: | |
4069 | if (strEQ(d,"shift")) return KEY_shift; | |
4070 | break; | |
4071 | case 6: | |
a0d0e21e LW |
4072 | if (strEQ(d,"shmctl")) return -KEY_shmctl; |
4073 | if (strEQ(d,"shmget")) return -KEY_shmget; | |
79072805 LW |
4074 | break; |
4075 | case 7: | |
a0d0e21e | 4076 | if (strEQ(d,"shmread")) return -KEY_shmread; |
79072805 LW |
4077 | break; |
4078 | case 8: | |
a0d0e21e LW |
4079 | if (strEQ(d,"shmwrite")) return -KEY_shmwrite; |
4080 | if (strEQ(d,"shutdown")) return -KEY_shutdown; | |
79072805 LW |
4081 | break; |
4082 | } | |
a687059c LW |
4083 | break; |
4084 | case 'i': | |
a0d0e21e | 4085 | if (strEQ(d,"sin")) return -KEY_sin; |
a687059c LW |
4086 | break; |
4087 | case 'l': | |
a0d0e21e | 4088 | if (strEQ(d,"sleep")) return -KEY_sleep; |
a687059c LW |
4089 | break; |
4090 | case 'o': | |
79072805 | 4091 | if (strEQ(d,"sort")) return KEY_sort; |
a0d0e21e LW |
4092 | if (strEQ(d,"socket")) return -KEY_socket; |
4093 | if (strEQ(d,"socketpair")) return -KEY_socketpair; | |
a687059c LW |
4094 | break; |
4095 | case 'p': | |
79072805 | 4096 | if (strEQ(d,"split")) return KEY_split; |
a0d0e21e | 4097 | if (strEQ(d,"sprintf")) return -KEY_sprintf; |
79072805 | 4098 | if (strEQ(d,"splice")) return KEY_splice; |
a687059c LW |
4099 | break; |
4100 | case 'q': | |
a0d0e21e | 4101 | if (strEQ(d,"sqrt")) return -KEY_sqrt; |
a687059c LW |
4102 | break; |
4103 | case 'r': | |
a0d0e21e | 4104 | if (strEQ(d,"srand")) return -KEY_srand; |
a687059c LW |
4105 | break; |
4106 | case 't': | |
a0d0e21e | 4107 | if (strEQ(d,"stat")) return -KEY_stat; |
79072805 | 4108 | if (strEQ(d,"study")) return KEY_study; |
a687059c LW |
4109 | break; |
4110 | case 'u': | |
a0d0e21e | 4111 | if (strEQ(d,"substr")) return -KEY_substr; |
79072805 | 4112 | if (strEQ(d,"sub")) return KEY_sub; |
a687059c LW |
4113 | break; |
4114 | case 'y': | |
79072805 LW |
4115 | switch (len) { |
4116 | case 6: | |
a0d0e21e | 4117 | if (strEQ(d,"system")) return -KEY_system; |
79072805 LW |
4118 | break; |
4119 | case 7: | |
c07a80fd | 4120 | if (strEQ(d,"sysopen")) return -KEY_sysopen; |
a0d0e21e LW |
4121 | if (strEQ(d,"sysread")) return -KEY_sysread; |
4122 | if (strEQ(d,"symlink")) return -KEY_symlink; | |
4123 | if (strEQ(d,"syscall")) return -KEY_syscall; | |
79072805 LW |
4124 | break; |
4125 | case 8: | |
a0d0e21e | 4126 | if (strEQ(d,"syswrite")) return -KEY_syswrite; |
79072805 | 4127 | break; |
a687059c | 4128 | } |
a687059c LW |
4129 | break; |
4130 | } | |
4131 | break; | |
79072805 LW |
4132 | case 't': |
4133 | switch (len) { | |
4134 | case 2: | |
4135 | if (strEQ(d,"tr")) return KEY_tr; | |
4136 | break; | |
463ee0b2 LW |
4137 | case 3: |
4138 | if (strEQ(d,"tie")) return KEY_tie; | |
4139 | break; | |
79072805 | 4140 | case 4: |
a0d0e21e | 4141 | if (strEQ(d,"tell")) return -KEY_tell; |
c07a80fd | 4142 | if (strEQ(d,"tied")) return KEY_tied; |
a0d0e21e | 4143 | if (strEQ(d,"time")) return -KEY_time; |
79072805 LW |
4144 | break; |
4145 | case 5: | |
a0d0e21e | 4146 | if (strEQ(d,"times")) return -KEY_times; |
79072805 LW |
4147 | break; |
4148 | case 7: | |
a0d0e21e | 4149 | if (strEQ(d,"telldir")) return -KEY_telldir; |
79072805 LW |
4150 | break; |
4151 | case 8: | |
a0d0e21e | 4152 | if (strEQ(d,"truncate")) return -KEY_truncate; |
79072805 | 4153 | break; |
378cc40b | 4154 | } |
a687059c | 4155 | break; |
79072805 LW |
4156 | case 'u': |
4157 | switch (len) { | |
4158 | case 2: | |
a0d0e21e LW |
4159 | if (strEQ(d,"uc")) return -KEY_uc; |
4160 | break; | |
4161 | case 3: | |
4162 | if (strEQ(d,"use")) return KEY_use; | |
79072805 LW |
4163 | break; |
4164 | case 5: | |
4165 | if (strEQ(d,"undef")) return KEY_undef; | |
4166 | if (strEQ(d,"until")) return KEY_until; | |
463ee0b2 | 4167 | if (strEQ(d,"untie")) return KEY_untie; |
a0d0e21e LW |
4168 | if (strEQ(d,"utime")) return -KEY_utime; |
4169 | if (strEQ(d,"umask")) return -KEY_umask; | |
79072805 LW |
4170 | break; |
4171 | case 6: | |
4172 | if (strEQ(d,"unless")) return KEY_unless; | |
a0d0e21e LW |
4173 | if (strEQ(d,"unpack")) return -KEY_unpack; |
4174 | if (strEQ(d,"unlink")) return -KEY_unlink; | |
79072805 LW |
4175 | break; |
4176 | case 7: | |
4177 | if (strEQ(d,"unshift")) return KEY_unshift; | |
a0d0e21e | 4178 | if (strEQ(d,"ucfirst")) return -KEY_ucfirst; |
79072805 | 4179 | break; |
a687059c LW |
4180 | } |
4181 | break; | |
79072805 | 4182 | case 'v': |
a0d0e21e LW |
4183 | if (strEQ(d,"values")) return -KEY_values; |
4184 | if (strEQ(d,"vec")) return -KEY_vec; | |
a687059c | 4185 | break; |
79072805 LW |
4186 | case 'w': |
4187 | switch (len) { | |
4188 | case 4: | |
a0d0e21e LW |
4189 | if (strEQ(d,"warn")) return -KEY_warn; |
4190 | if (strEQ(d,"wait")) return -KEY_wait; | |
79072805 LW |
4191 | break; |
4192 | case 5: | |
4193 | if (strEQ(d,"while")) return KEY_while; | |
a0d0e21e | 4194 | if (strEQ(d,"write")) return -KEY_write; |
79072805 LW |
4195 | break; |
4196 | case 7: | |
a0d0e21e | 4197 | if (strEQ(d,"waitpid")) return -KEY_waitpid; |
79072805 LW |
4198 | break; |
4199 | case 9: | |
a0d0e21e | 4200 | if (strEQ(d,"wantarray")) return -KEY_wantarray; |
79072805 | 4201 | break; |
2f3197b3 | 4202 | } |
a687059c | 4203 | break; |
79072805 | 4204 | case 'x': |
a0d0e21e LW |
4205 | if (len == 1) return -KEY_x; |
4206 | if (strEQ(d,"xor")) return -KEY_xor; | |
a687059c | 4207 | break; |
79072805 LW |
4208 | case 'y': |
4209 | if (len == 1) return KEY_y; | |
4210 | break; | |
4211 | case 'z': | |
a687059c LW |
4212 | break; |
4213 | } | |
79072805 | 4214 | return 0; |
a687059c LW |
4215 | } |
4216 | ||
8990e307 | 4217 | static void |
2f3197b3 | 4218 | checkcomma(s,name,what) |
a687059c | 4219 | register char *s; |
2f3197b3 | 4220 | char *name; |
a687059c LW |
4221 | char *what; |
4222 | { | |
2f3197b3 LW |
4223 | char *w; |
4224 | ||
463ee0b2 | 4225 | if (dowarn && *s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
a0d0e21e LW |
4226 | int level = 1; |
4227 | for (w = s+2; *w && level; w++) { | |
4228 | if (*w == '(') | |
4229 | ++level; | |
4230 | else if (*w == ')') | |
4231 | --level; | |
4232 | } | |
4233 | if (*w) | |
4234 | for (; *w && isSPACE(*w); w++) ; | |
4235 | if (!*w || !strchr(";|})]oa!=", *w)) /* an advisory hack only... */ | |
2f3197b3 LW |
4236 | warn("%s (...) interpreted as function",name); |
4237 | } | |
4238 | while (s < bufend && isSPACE(*s)) | |
4239 | s++; | |
a687059c LW |
4240 | if (*s == '(') |
4241 | s++; | |
de3bb511 | 4242 | while (s < bufend && isSPACE(*s)) |
a687059c | 4243 | s++; |
79072805 | 4244 | if (isIDFIRST(*s)) { |
2f3197b3 | 4245 | w = s++; |
de3bb511 | 4246 | while (isALNUM(*s)) |
a687059c | 4247 | s++; |
de3bb511 | 4248 | while (s < bufend && isSPACE(*s)) |
a687059c | 4249 | s++; |
e929a76b | 4250 | if (*s == ',') { |
463ee0b2 | 4251 | int kw; |
e929a76b | 4252 | *s = '\0'; |
4633a7c4 | 4253 | kw = keyword(w, s - w) || perl_get_cv(w, FALSE) != 0; |
e929a76b | 4254 | *s = ','; |
463ee0b2 | 4255 | if (kw) |
e929a76b | 4256 | return; |
463ee0b2 LW |
4257 | croak("No comma allowed after %s", what); |
4258 | } | |
4259 | } | |
4260 | } | |
4261 | ||
8990e307 | 4262 | static char * |
463ee0b2 LW |
4263 | scan_word(s, dest, allow_package, slp) |
4264 | register char *s; | |
4265 | char *dest; | |
4266 | int allow_package; | |
4267 | STRLEN *slp; | |
4268 | { | |
4269 | register char *d = dest; | |
4270 | for (;;) { | |
4271 | if (isALNUM(*s)) | |
4272 | *d++ = *s++; | |
4273 | else if (*s == '\'' && allow_package && isIDFIRST(s[1])) { | |
4274 | *d++ = ':'; | |
4275 | *d++ = ':'; | |
4276 | s++; | |
4277 | } | |
4278 | else if (*s == ':' && s[1] == ':' && allow_package && isIDFIRST(s[2])) { | |
4279 | *d++ = *s++; | |
4280 | *d++ = *s++; | |
4281 | } | |
4282 | else { | |
4283 | *d = '\0'; | |
4284 | *slp = d - dest; | |
4285 | return s; | |
e929a76b | 4286 | } |
378cc40b LW |
4287 | } |
4288 | } | |
4289 | ||
8990e307 | 4290 | static char * |
79072805 | 4291 | scan_ident(s,send,dest,ck_uni) |
378cc40b | 4292 | register char *s; |
a687059c | 4293 | register char *send; |
378cc40b | 4294 | char *dest; |
79072805 | 4295 | I32 ck_uni; |
378cc40b LW |
4296 | { |
4297 | register char *d; | |
79072805 | 4298 | char *bracket = 0; |
748a9306 | 4299 | char funny = *s++; |
378cc40b | 4300 | |
79072805 LW |
4301 | if (lex_brackets == 0) |
4302 | lex_fakebrack = 0; | |
a0d0e21e LW |
4303 | if (isSPACE(*s)) |
4304 | s = skipspace(s); | |
378cc40b | 4305 | d = dest; |
de3bb511 LW |
4306 | if (isDIGIT(*s)) { |
4307 | while (isDIGIT(*s)) | |
378cc40b LW |
4308 | *d++ = *s++; |
4309 | } | |
4310 | else { | |
463ee0b2 LW |
4311 | for (;;) { |
4312 | if (isALNUM(*s)) | |
4313 | *d++ = *s++; | |
4314 | else if (*s == '\'' && isIDFIRST(s[1])) { | |
4315 | *d++ = ':'; | |
4316 | *d++ = ':'; | |
4317 | s++; | |
4318 | } | |
a0d0e21e | 4319 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
4320 | *d++ = *s++; |
4321 | *d++ = *s++; | |
4322 | } | |
4323 | else | |
4324 | break; | |
4325 | } | |
378cc40b LW |
4326 | } |
4327 | *d = '\0'; | |
4328 | d = dest; | |
79072805 LW |
4329 | if (*d) { |
4330 | if (lex_state != LEX_NORMAL) | |
4331 | lex_state = LEX_INTERPENDMAYBE; | |
4332 | return s; | |
378cc40b | 4333 | } |
748a9306 | 4334 | if (*s == '$' && s[1] && |
ff0cee69 | 4335 | (isALNUM(s[1]) || strchr("${", s[1]) || strnEQ(s+1,"::",2)) ) |
a0d0e21e | 4336 | return s; |
79072805 LW |
4337 | if (*s == '{') { |
4338 | bracket = s; | |
4339 | s++; | |
4340 | } | |
4341 | else if (ck_uni) | |
4342 | check_uni(); | |
93a17b20 | 4343 | if (s < send) |
79072805 LW |
4344 | *d = *s++; |
4345 | d[1] = '\0'; | |
748a9306 | 4346 | if (*d == '^' && *s && (isUPPER(*s) || strchr("[\\]^_?", *s))) { |
bbce6d69 | 4347 | *d = toCTRL(*s); |
4348 | s++; | |
de3bb511 | 4349 | } |
79072805 | 4350 | if (bracket) { |
748a9306 | 4351 | if (isSPACE(s[-1])) { |
fa83b5b6 | 4352 | while (s < send) { |
4353 | char ch = *s++; | |
4354 | if (ch != ' ' && ch != '\t') { | |
4355 | *d = ch; | |
4356 | break; | |
4357 | } | |
4358 | } | |
748a9306 | 4359 | } |
ff68c719 | 4360 | if (isIDFIRST(*d)) { |
79072805 | 4361 | d++; |
748a9306 | 4362 | while (isALNUM(*s) || *s == ':') |
79072805 LW |
4363 | *d++ = *s++; |
4364 | *d = '\0'; | |
748a9306 | 4365 | while (s < send && (*s == ' ' || *s == '\t')) s++; |
ff68c719 | 4366 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
748a9306 LW |
4367 | if (dowarn && keyword(dest, d - dest)) { |
4368 | char *brack = *s == '[' ? "[...]" : "{...}"; | |
4369 | warn("Ambiguous use of %c{%s%s} resolved to %c%s%s", | |
4370 | funny, dest, brack, funny, dest, brack); | |
4371 | } | |
4372 | lex_fakebrack = lex_brackets+1; | |
79072805 | 4373 | bracket++; |
a0d0e21e | 4374 | lex_brackstack[lex_brackets++] = XOPERATOR; |
79072805 LW |
4375 | return s; |
4376 | } | |
4377 | } | |
4378 | if (*s == '}') { | |
4379 | s++; | |
4380 | if (lex_state == LEX_INTERPNORMAL && !lex_brackets) | |
4381 | lex_state = LEX_INTERPEND; | |
748a9306 LW |
4382 | if (funny == '#') |
4383 | funny = '@'; | |
4384 | if (dowarn && | |
4385 | (keyword(dest, d - dest) || perl_get_cv(dest, FALSE))) | |
4386 | warn("Ambiguous use of %c{%s} resolved to %c%s", | |
4387 | funny, dest, funny, dest); | |
79072805 LW |
4388 | } |
4389 | else { | |
4390 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 4391 | *dest = '\0'; |
79072805 LW |
4392 | } |
4393 | } | |
4394 | else if (lex_state == LEX_INTERPNORMAL && !lex_brackets && !intuit_more(s)) | |
4395 | lex_state = LEX_INTERPEND; | |
378cc40b LW |
4396 | return s; |
4397 | } | |
4398 | ||
a0d0e21e LW |
4399 | void pmflag(pmfl,ch) |
4400 | U16* pmfl; | |
4401 | int ch; | |
4402 | { | |
bbce6d69 | 4403 | if (ch == 'i') |
a0d0e21e | 4404 | *pmfl |= PMf_FOLD; |
a0d0e21e LW |
4405 | else if (ch == 'g') |
4406 | *pmfl |= PMf_GLOBAL; | |
4407 | else if (ch == 'o') | |
4408 | *pmfl |= PMf_KEEP; | |
4409 | else if (ch == 'm') | |
4410 | *pmfl |= PMf_MULTILINE; | |
4411 | else if (ch == 's') | |
4412 | *pmfl |= PMf_SINGLELINE; | |
4413 | else if (ch == 'x') | |
4414 | *pmfl |= PMf_EXTENDED; | |
4415 | } | |
378cc40b | 4416 | |
8990e307 | 4417 | static char * |
79072805 LW |
4418 | scan_pat(start) |
4419 | char *start; | |
378cc40b | 4420 | { |
79072805 LW |
4421 | PMOP *pm; |
4422 | char *s; | |
378cc40b | 4423 | |
79072805 LW |
4424 | s = scan_str(start); |
4425 | if (!s) { | |
4426 | if (lex_stuff) | |
8990e307 | 4427 | SvREFCNT_dec(lex_stuff); |
79072805 | 4428 | lex_stuff = Nullsv; |
463ee0b2 | 4429 | croak("Search pattern not terminated"); |
378cc40b | 4430 | } |
bbce6d69 | 4431 | |
79072805 | 4432 | pm = (PMOP*)newPMOP(OP_MATCH, 0); |
a0d0e21e | 4433 | if (multi_open == '?') |
79072805 | 4434 | pm->op_pmflags |= PMf_ONCE; |
a0d0e21e LW |
4435 | while (*s && strchr("iogmsx", *s)) |
4436 | pmflag(&pm->op_pmflags,*s++); | |
4633a7c4 | 4437 | pm->op_pmpermflags = pm->op_pmflags; |
bbce6d69 | 4438 | |
79072805 LW |
4439 | lex_op = (OP*)pm; |
4440 | yylval.ival = OP_MATCH; | |
378cc40b LW |
4441 | return s; |
4442 | } | |
4443 | ||
8990e307 | 4444 | static char * |
79072805 | 4445 | scan_subst(start) |
2f3197b3 | 4446 | char *start; |
79072805 | 4447 | { |
a0d0e21e | 4448 | register char *s; |
79072805 | 4449 | register PMOP *pm; |
4fdae800 | 4450 | I32 first_start; |
79072805 LW |
4451 | I32 es = 0; |
4452 | ||
79072805 LW |
4453 | yylval.ival = OP_NULL; |
4454 | ||
a0d0e21e | 4455 | s = scan_str(start); |
79072805 LW |
4456 | |
4457 | if (!s) { | |
4458 | if (lex_stuff) | |
8990e307 | 4459 | SvREFCNT_dec(lex_stuff); |
79072805 | 4460 | lex_stuff = Nullsv; |
463ee0b2 | 4461 | croak("Substitution pattern not terminated"); |
a687059c | 4462 | } |
79072805 | 4463 | |
a0d0e21e | 4464 | if (s[-1] == multi_open) |
79072805 LW |
4465 | s--; |
4466 | ||
4fdae800 | 4467 | first_start = multi_start; |
79072805 LW |
4468 | s = scan_str(s); |
4469 | if (!s) { | |
4470 | if (lex_stuff) | |
8990e307 | 4471 | SvREFCNT_dec(lex_stuff); |
79072805 LW |
4472 | lex_stuff = Nullsv; |
4473 | if (lex_repl) | |
8990e307 | 4474 | SvREFCNT_dec(lex_repl); |
79072805 | 4475 | lex_repl = Nullsv; |
463ee0b2 | 4476 | croak("Substitution replacement not terminated"); |
a687059c | 4477 | } |
4fdae800 | 4478 | multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 4479 | |
79072805 | 4480 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
a0d0e21e | 4481 | while (*s && strchr("iogmsex", *s)) { |
a687059c LW |
4482 | if (*s == 'e') { |
4483 | s++; | |
2f3197b3 | 4484 | es++; |
a687059c | 4485 | } |
a0d0e21e LW |
4486 | else |
4487 | pmflag(&pm->op_pmflags,*s++); | |
378cc40b | 4488 | } |
79072805 LW |
4489 | |
4490 | if (es) { | |
4491 | SV *repl; | |
4492 | pm->op_pmflags |= PMf_EVAL; | |
463ee0b2 LW |
4493 | repl = newSVpv("",0); |
4494 | while (es-- > 0) | |
a0d0e21e | 4495 | sv_catpv(repl, es ? "eval " : "do "); |
79072805 LW |
4496 | sv_catpvn(repl, "{ ", 2); |
4497 | sv_catsv(repl, lex_repl); | |
4498 | sv_catpvn(repl, " };", 2); | |
4499 | SvCOMPILED_on(repl); | |
8990e307 | 4500 | SvREFCNT_dec(lex_repl); |
79072805 | 4501 | lex_repl = repl; |
378cc40b | 4502 | } |
79072805 | 4503 | |
4633a7c4 | 4504 | pm->op_pmpermflags = pm->op_pmflags; |
79072805 LW |
4505 | lex_op = (OP*)pm; |
4506 | yylval.ival = OP_SUBST; | |
378cc40b LW |
4507 | return s; |
4508 | } | |
4509 | ||
1462b684 | 4510 | void |
79072805 LW |
4511 | hoistmust(pm) |
4512 | register PMOP *pm; | |
378cc40b | 4513 | { |
79072805 LW |
4514 | if (!pm->op_pmshort && pm->op_pmregexp->regstart && |
4515 | (!pm->op_pmregexp->regmust || pm->op_pmregexp->reganch & ROPT_ANCH) | |
d48672a2 | 4516 | ) { |
79072805 LW |
4517 | if (!(pm->op_pmregexp->reganch & ROPT_ANCH)) |
4518 | pm->op_pmflags |= PMf_SCANFIRST; | |
8990e307 | 4519 | pm->op_pmshort = SvREFCNT_inc(pm->op_pmregexp->regstart); |
748a9306 | 4520 | pm->op_pmslen = SvCUR(pm->op_pmshort); |
d48672a2 | 4521 | } |
79072805 LW |
4522 | else if (pm->op_pmregexp->regmust) {/* is there a better short-circuit? */ |
4523 | if (pm->op_pmshort && | |
4524 | sv_eq(pm->op_pmshort,pm->op_pmregexp->regmust)) | |
a687059c | 4525 | { |
79072805 | 4526 | if (pm->op_pmflags & PMf_SCANFIRST) { |
8990e307 | 4527 | SvREFCNT_dec(pm->op_pmshort); |
79072805 | 4528 | pm->op_pmshort = Nullsv; |
378cc40b LW |
4529 | } |
4530 | else { | |
8990e307 | 4531 | SvREFCNT_dec(pm->op_pmregexp->regmust); |
79072805 | 4532 | pm->op_pmregexp->regmust = Nullsv; |
378cc40b LW |
4533 | return; |
4534 | } | |
4535 | } | |
774d564b | 4536 | /* promote the better string */ |
4537 | if ((!pm->op_pmshort && !(pm->op_pmregexp->reganch & ROPT_ANCH)) || | |
4538 | ((pm->op_pmflags & PMf_SCANFIRST) && | |
4539 | (SvCUR(pm->op_pmshort) < SvCUR(pm->op_pmregexp->regmust)))) { | |
8990e307 | 4540 | SvREFCNT_dec(pm->op_pmshort); /* ok if null */ |
79072805 | 4541 | pm->op_pmshort = pm->op_pmregexp->regmust; |
748a9306 | 4542 | pm->op_pmslen = SvCUR(pm->op_pmshort); |
79072805 LW |
4543 | pm->op_pmregexp->regmust = Nullsv; |
4544 | pm->op_pmflags |= PMf_SCANFIRST; | |
378cc40b LW |
4545 | } |
4546 | } | |
4547 | } | |
4548 | ||
8990e307 | 4549 | static char * |
79072805 | 4550 | scan_trans(start) |
2f3197b3 | 4551 | char *start; |
378cc40b | 4552 | { |
a0d0e21e | 4553 | register char* s; |
79072805 LW |
4554 | OP *op; |
4555 | short *tbl; | |
4556 | I32 squash; | |
4557 | I32 delete; | |
4558 | I32 complement; | |
4559 | ||
4560 | yylval.ival = OP_NULL; | |
4561 | ||
a0d0e21e | 4562 | s = scan_str(start); |
79072805 LW |
4563 | if (!s) { |
4564 | if (lex_stuff) | |
8990e307 | 4565 | SvREFCNT_dec(lex_stuff); |
79072805 | 4566 | lex_stuff = Nullsv; |
463ee0b2 | 4567 | croak("Translation pattern not terminated"); |
a687059c | 4568 | } |
a0d0e21e | 4569 | if (s[-1] == multi_open) |
2f3197b3 LW |
4570 | s--; |
4571 | ||
93a17b20 | 4572 | s = scan_str(s); |
79072805 LW |
4573 | if (!s) { |
4574 | if (lex_stuff) | |
8990e307 | 4575 | SvREFCNT_dec(lex_stuff); |
79072805 LW |
4576 | lex_stuff = Nullsv; |
4577 | if (lex_repl) | |
8990e307 | 4578 | SvREFCNT_dec(lex_repl); |
79072805 | 4579 | lex_repl = Nullsv; |
463ee0b2 | 4580 | croak("Translation replacement not terminated"); |
a687059c | 4581 | } |
79072805 LW |
4582 | |
4583 | New(803,tbl,256,short); | |
4584 | op = newPVOP(OP_TRANS, 0, (char*)tbl); | |
2f3197b3 | 4585 | |
395c3793 LW |
4586 | complement = delete = squash = 0; |
4587 | while (*s == 'c' || *s == 'd' || *s == 's') { | |
4588 | if (*s == 'c') | |
79072805 | 4589 | complement = OPpTRANS_COMPLEMENT; |
395c3793 | 4590 | else if (*s == 'd') |
79072805 | 4591 | delete = OPpTRANS_DELETE; |
395c3793 | 4592 | else |
79072805 | 4593 | squash = OPpTRANS_SQUASH; |
395c3793 LW |
4594 | s++; |
4595 | } | |
79072805 LW |
4596 | op->op_private = delete|squash|complement; |
4597 | ||
4598 | lex_op = op; | |
4599 | yylval.ival = OP_TRANS; | |
4600 | return s; | |
4601 | } | |
4602 | ||
8990e307 | 4603 | static char * |
79072805 LW |
4604 | scan_heredoc(s) |
4605 | register char *s; | |
4606 | { | |
4607 | SV *herewas; | |
4608 | I32 op_type = OP_SCALAR; | |
4609 | I32 len; | |
4610 | SV *tmpstr; | |
4611 | char term; | |
4612 | register char *d; | |
4633a7c4 | 4613 | char *peek; |
fd2d0953 | 4614 | int outer = (rsfp && !lex_inwhat); |
79072805 LW |
4615 | |
4616 | s += 2; | |
4617 | d = tokenbuf; | |
fd2d0953 | 4618 | if (!outer) |
79072805 | 4619 | *d++ = '\n'; |
4633a7c4 LW |
4620 | for (peek = s; *peek == ' ' || *peek == '\t'; peek++) ; |
4621 | if (*peek && strchr("`'\"",*peek)) { | |
4622 | s = peek; | |
79072805 LW |
4623 | term = *s++; |
4624 | s = cpytill(d,s,bufend,term,&len); | |
4625 | if (s < bufend) | |
4626 | s++; | |
4627 | d += len; | |
4628 | } | |
4629 | else { | |
4630 | if (*s == '\\') | |
4631 | s++, term = '\''; | |
4632 | else | |
4633 | term = '"'; | |
4633a7c4 LW |
4634 | if (!isALNUM(*s)) |
4635 | deprecate("bare << to mean <<\"\""); | |
79072805 LW |
4636 | while (isALNUM(*s)) |
4637 | *d++ = *s++; | |
4638 | } /* assuming tokenbuf won't clobber */ | |
4639 | *d++ = '\n'; | |
4640 | *d = '\0'; | |
4641 | len = d - tokenbuf; | |
4642 | d = "\n"; | |
fd2d0953 | 4643 | if (outer || !(d=ninstr(s,bufend,d,d+1))) |
79072805 LW |
4644 | herewas = newSVpv(s,bufend-s); |
4645 | else | |
4646 | s--, herewas = newSVpv(s,d-s); | |
4647 | s += SvCUR(herewas); | |
748a9306 LW |
4648 | |
4649 | tmpstr = NEWSV(87,80); | |
4650 | sv_upgrade(tmpstr, SVt_PVIV); | |
4651 | if (term == '\'') { | |
79072805 | 4652 | op_type = OP_CONST; |
748a9306 LW |
4653 | SvIVX(tmpstr) = -1; |
4654 | } | |
4655 | else if (term == '`') { | |
79072805 | 4656 | op_type = OP_BACKTICK; |
748a9306 LW |
4657 | SvIVX(tmpstr) = '\\'; |
4658 | } | |
79072805 LW |
4659 | |
4660 | CLINE; | |
4661 | multi_start = curcop->cop_line; | |
4662 | multi_open = multi_close = '<'; | |
79072805 | 4663 | term = *tokenbuf; |
fd2d0953 | 4664 | if (!outer) { |
79072805 LW |
4665 | d = s; |
4666 | while (s < bufend && | |
36477c24 | 4667 | (*s != term || memNE(s,tokenbuf,len)) ) { |
79072805 LW |
4668 | if (*s++ == '\n') |
4669 | curcop->cop_line++; | |
4670 | } | |
4671 | if (s >= bufend) { | |
4672 | curcop->cop_line = multi_start; | |
8990e307 | 4673 | missingterm(tokenbuf); |
79072805 LW |
4674 | } |
4675 | sv_setpvn(tmpstr,d+1,s-d); | |
4676 | s += len - 1; | |
4677 | sv_catpvn(herewas,s,bufend-s); | |
4678 | sv_setsv(linestr,herewas); | |
fd049845 | 4679 | oldoldbufptr = oldbufptr = bufptr = s = linestart = SvPVX(linestr); |
463ee0b2 | 4680 | bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 LW |
4681 | } |
4682 | else | |
4683 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
4684 | while (s >= bufend) { /* multiple line string? */ | |
fd2d0953 | 4685 | if (!outer || |
fd049845 | 4686 | !(oldoldbufptr = oldbufptr = s = linestart = filter_gets(linestr, rsfp, 0))) { |
79072805 | 4687 | curcop->cop_line = multi_start; |
8990e307 | 4688 | missingterm(tokenbuf); |
79072805 LW |
4689 | } |
4690 | curcop->cop_line++; | |
8990e307 | 4691 | if (perldb && curstash != debstash) { |
79072805 LW |
4692 | SV *sv = NEWSV(88,0); |
4693 | ||
93a17b20 | 4694 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
4695 | sv_setsv(sv,linestr); |
4696 | av_store(GvAV(curcop->cop_filegv), | |
4697 | (I32)curcop->cop_line,sv); | |
4698 | } | |
463ee0b2 | 4699 | bufend = SvPVX(linestr) + SvCUR(linestr); |
36477c24 | 4700 | if (*s == term && memEQ(s,tokenbuf,len)) { |
79072805 LW |
4701 | s = bufend - 1; |
4702 | *s = ' '; | |
4703 | sv_catsv(linestr,herewas); | |
463ee0b2 | 4704 | bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 LW |
4705 | } |
4706 | else { | |
4707 | s = bufend; | |
4708 | sv_catsv(tmpstr,linestr); | |
395c3793 LW |
4709 | } |
4710 | } | |
79072805 LW |
4711 | multi_end = curcop->cop_line; |
4712 | s++; | |
4713 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { | |
4714 | SvLEN_set(tmpstr, SvCUR(tmpstr) + 1); | |
463ee0b2 | 4715 | Renew(SvPVX(tmpstr), SvLEN(tmpstr), char); |
79072805 | 4716 | } |
8990e307 | 4717 | SvREFCNT_dec(herewas); |
79072805 LW |
4718 | lex_stuff = tmpstr; |
4719 | yylval.ival = op_type; | |
4720 | return s; | |
4721 | } | |
4722 | ||
8990e307 | 4723 | static char * |
79072805 LW |
4724 | scan_inputsymbol(start) |
4725 | char *start; | |
4726 | { | |
4727 | register char *s = start; | |
4728 | register char *d; | |
4729 | I32 len; | |
4730 | ||
4731 | d = tokenbuf; | |
4732 | s = cpytill(d, s+1, bufend, '>', &len); | |
4733 | if (s < bufend) | |
4734 | s++; | |
4735 | else | |
463ee0b2 | 4736 | croak("Unterminated <> operator"); |
79072805 | 4737 | |
4633a7c4 | 4738 | if (*d == '$' && d[1]) d++; |
a0d0e21e | 4739 | while (*d && (isALNUM(*d) || *d == '\'' || *d == ':')) |
79072805 LW |
4740 | d++; |
4741 | if (d - tokenbuf != len) { | |
4742 | yylval.ival = OP_GLOB; | |
4743 | set_csh(); | |
4744 | s = scan_str(start); | |
4745 | if (!s) | |
463ee0b2 | 4746 | croak("Glob not terminated"); |
79072805 LW |
4747 | return s; |
4748 | } | |
395c3793 | 4749 | else { |
79072805 LW |
4750 | d = tokenbuf; |
4751 | if (!len) | |
4752 | (void)strcpy(d,"ARGV"); | |
4753 | if (*d == '$') { | |
a0d0e21e LW |
4754 | I32 tmp; |
4755 | if (tmp = pad_findmy(d)) { | |
4756 | OP *op = newOP(OP_PADSV, 0); | |
4757 | op->op_targ = tmp; | |
4758 | lex_op = (OP*)newUNOP(OP_READLINE, 0, newUNOP(OP_RV2GV, 0, op)); | |
4759 | } | |
4760 | else { | |
4761 | GV *gv = gv_fetchpv(d+1,TRUE, SVt_PV); | |
4762 | lex_op = (OP*)newUNOP(OP_READLINE, 0, | |
4763 | newUNOP(OP_RV2GV, 0, | |
4764 | newUNOP(OP_RV2SV, 0, | |
4765 | newGVOP(OP_GV, 0, gv)))); | |
4766 | } | |
79072805 LW |
4767 | yylval.ival = OP_NULL; |
4768 | } | |
4769 | else { | |
85e6fe83 | 4770 | GV *gv = gv_fetchpv(d,TRUE, SVt_PVIO); |
79072805 LW |
4771 | lex_op = (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); |
4772 | yylval.ival = OP_NULL; | |
4773 | } | |
4774 | } | |
4775 | return s; | |
4776 | } | |
4777 | ||
8990e307 | 4778 | static char * |
79072805 LW |
4779 | scan_str(start) |
4780 | char *start; | |
4781 | { | |
93a17b20 | 4782 | SV *sv; |
79072805 LW |
4783 | char *tmps; |
4784 | register char *s = start; | |
a0d0e21e | 4785 | register char term; |
93a17b20 LW |
4786 | register char *to; |
4787 | I32 brackets = 1; | |
79072805 | 4788 | |
a0d0e21e LW |
4789 | if (isSPACE(*s)) |
4790 | s = skipspace(s); | |
79072805 | 4791 | CLINE; |
a0d0e21e | 4792 | term = *s; |
79072805 LW |
4793 | multi_start = curcop->cop_line; |
4794 | multi_open = term; | |
93a17b20 | 4795 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
79072805 LW |
4796 | term = tmps[5]; |
4797 | multi_close = term; | |
4798 | ||
93a17b20 | 4799 | sv = NEWSV(87,80); |
ed6116ce LW |
4800 | sv_upgrade(sv, SVt_PVIV); |
4801 | SvIVX(sv) = term; | |
a0d0e21e | 4802 | (void)SvPOK_only(sv); /* validate pointer */ |
93a17b20 LW |
4803 | s++; |
4804 | for (;;) { | |
4805 | SvGROW(sv, SvCUR(sv) + (bufend - s) + 1); | |
463ee0b2 | 4806 | to = SvPVX(sv)+SvCUR(sv); |
93a17b20 LW |
4807 | if (multi_open == multi_close) { |
4808 | for (; s < bufend; s++,to++) { | |
463ee0b2 LW |
4809 | if (*s == '\n' && !rsfp) |
4810 | curcop->cop_line++; | |
a0d0e21e LW |
4811 | if (*s == '\\' && s+1 < bufend && term != '\\') { |
4812 | if (s[1] == term) | |
4813 | s++; | |
4814 | else | |
4815 | *to++ = *s++; | |
4816 | } | |
93a17b20 LW |
4817 | else if (*s == term) |
4818 | break; | |
4819 | *to = *s; | |
4820 | } | |
4821 | } | |
4822 | else { | |
4823 | for (; s < bufend; s++,to++) { | |
463ee0b2 LW |
4824 | if (*s == '\n' && !rsfp) |
4825 | curcop->cop_line++; | |
a0d0e21e LW |
4826 | if (*s == '\\' && s+1 < bufend && term != '\\') { |
4827 | if (s[1] == term) | |
4828 | s++; | |
4829 | else | |
4830 | *to++ = *s++; | |
4831 | } | |
93a17b20 LW |
4832 | else if (*s == term && --brackets <= 0) |
4833 | break; | |
4834 | else if (*s == multi_open) | |
4835 | brackets++; | |
4836 | *to = *s; | |
4837 | } | |
4838 | } | |
4839 | *to = '\0'; | |
463ee0b2 | 4840 | SvCUR_set(sv, to - SvPVX(sv)); |
93a17b20 LW |
4841 | |
4842 | if (s < bufend) break; /* string ends on this line? */ | |
79072805 | 4843 | |
79072805 | 4844 | if (!rsfp || |
fd049845 | 4845 | !(oldoldbufptr = oldbufptr = s = linestart = filter_gets(linestr, rsfp, 0))) { |
c07a80fd | 4846 | sv_free(sv); |
79072805 LW |
4847 | curcop->cop_line = multi_start; |
4848 | return Nullch; | |
4849 | } | |
4850 | curcop->cop_line++; | |
8990e307 | 4851 | if (perldb && curstash != debstash) { |
79072805 LW |
4852 | SV *sv = NEWSV(88,0); |
4853 | ||
93a17b20 | 4854 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
4855 | sv_setsv(sv,linestr); |
4856 | av_store(GvAV(curcop->cop_filegv), | |
4857 | (I32)curcop->cop_line, sv); | |
395c3793 | 4858 | } |
463ee0b2 | 4859 | bufend = SvPVX(linestr) + SvCUR(linestr); |
378cc40b | 4860 | } |
79072805 LW |
4861 | multi_end = curcop->cop_line; |
4862 | s++; | |
93a17b20 LW |
4863 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
4864 | SvLEN_set(sv, SvCUR(sv) + 1); | |
463ee0b2 | 4865 | Renew(SvPVX(sv), SvLEN(sv), char); |
79072805 LW |
4866 | } |
4867 | if (lex_stuff) | |
93a17b20 | 4868 | lex_repl = sv; |
79072805 | 4869 | else |
93a17b20 | 4870 | lex_stuff = sv; |
378cc40b LW |
4871 | return s; |
4872 | } | |
4873 | ||
4874 | char * | |
79072805 | 4875 | scan_num(start) |
2f3197b3 | 4876 | char *start; |
378cc40b | 4877 | { |
2f3197b3 | 4878 | register char *s = start; |
378cc40b | 4879 | register char *d; |
1e422769 | 4880 | I32 tryiv; |
79072805 LW |
4881 | double value; |
4882 | SV *sv; | |
4883 | I32 floatit; | |
93a17b20 | 4884 | char *lastub = 0; |
378cc40b LW |
4885 | |
4886 | switch (*s) { | |
79072805 | 4887 | default: |
463ee0b2 | 4888 | croak("panic: scan_num"); |
378cc40b LW |
4889 | case '0': |
4890 | { | |
55497cff | 4891 | UV u; |
79072805 | 4892 | I32 shift; |
55497cff | 4893 | bool overflowed = FALSE; |
378cc40b | 4894 | |
378cc40b LW |
4895 | if (s[1] == 'x') { |
4896 | shift = 4; | |
4897 | s += 2; | |
4898 | } | |
4899 | else if (s[1] == '.') | |
4900 | goto decimal; | |
4901 | else | |
4902 | shift = 3; | |
55497cff | 4903 | u = 0; |
378cc40b | 4904 | for (;;) { |
55497cff | 4905 | UV n, b; |
4906 | ||
378cc40b LW |
4907 | switch (*s) { |
4908 | default: | |
4909 | goto out; | |
de3bb511 LW |
4910 | case '_': |
4911 | s++; | |
4912 | break; | |
378cc40b LW |
4913 | case '8': case '9': |
4914 | if (shift != 4) | |
a687059c | 4915 | yyerror("Illegal octal digit"); |
378cc40b LW |
4916 | /* FALL THROUGH */ |
4917 | case '0': case '1': case '2': case '3': case '4': | |
4918 | case '5': case '6': case '7': | |
55497cff | 4919 | b = *s++ & 15; |
4920 | goto digit; | |
378cc40b LW |
4921 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
4922 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
4923 | if (shift != 4) | |
4924 | goto out; | |
55497cff | 4925 | b = (*s++ & 7) + 9; |
4926 | digit: | |
4927 | n = u << shift; | |
4928 | if (!overflowed && (n >> shift) != u) { | |
4929 | warn("Integer overflow in %s number", | |
4930 | (shift == 4) ? "hex" : "octal"); | |
4931 | overflowed = TRUE; | |
4932 | } | |
4933 | u = n | b; | |
378cc40b LW |
4934 | break; |
4935 | } | |
4936 | } | |
4937 | out: | |
79072805 | 4938 | sv = NEWSV(92,0); |
55497cff | 4939 | sv_setuv(sv, u); |
378cc40b LW |
4940 | } |
4941 | break; | |
4942 | case '1': case '2': case '3': case '4': case '5': | |
4943 | case '6': case '7': case '8': case '9': case '.': | |
4944 | decimal: | |
378cc40b | 4945 | d = tokenbuf; |
79072805 | 4946 | floatit = FALSE; |
de3bb511 | 4947 | while (isDIGIT(*s) || *s == '_') { |
93a17b20 LW |
4948 | if (*s == '_') { |
4949 | if (dowarn && lastub && s - lastub != 3) | |
8990e307 | 4950 | warn("Misplaced _ in number"); |
93a17b20 LW |
4951 | lastub = ++s; |
4952 | } | |
378cc40b LW |
4953 | else |
4954 | *d++ = *s++; | |
4955 | } | |
93a17b20 | 4956 | if (dowarn && lastub && s - lastub != 3) |
8990e307 | 4957 | warn("Misplaced _ in number"); |
2f3197b3 | 4958 | if (*s == '.' && s[1] != '.') { |
79072805 | 4959 | floatit = TRUE; |
378cc40b | 4960 | *d++ = *s++; |
de3bb511 | 4961 | while (isDIGIT(*s) || *s == '_') { |
378cc40b LW |
4962 | if (*s == '_') |
4963 | s++; | |
4964 | else | |
4965 | *d++ = *s++; | |
4966 | } | |
4967 | } | |
93a17b20 | 4968 | if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) { |
79072805 LW |
4969 | floatit = TRUE; |
4970 | s++; | |
4971 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ | |
378cc40b LW |
4972 | if (*s == '+' || *s == '-') |
4973 | *d++ = *s++; | |
de3bb511 | 4974 | while (isDIGIT(*s)) |
378cc40b LW |
4975 | *d++ = *s++; |
4976 | } | |
4977 | *d = '\0'; | |
79072805 | 4978 | sv = NEWSV(92,0); |
36477c24 | 4979 | SET_NUMERIC_STANDARD(); |
79072805 | 4980 | value = atof(tokenbuf); |
1e422769 | 4981 | tryiv = I_V(value); |
4982 | if (!floatit && (double)tryiv == value) | |
4983 | sv_setiv(sv, tryiv); | |
2f3197b3 | 4984 | else |
1e422769 | 4985 | sv_setnv(sv, value); |
378cc40b | 4986 | break; |
79072805 | 4987 | } |
a687059c | 4988 | |
79072805 | 4989 | yylval.opval = newSVOP(OP_CONST, 0, sv); |
a687059c | 4990 | |
378cc40b LW |
4991 | return s; |
4992 | } | |
4993 | ||
8990e307 | 4994 | static char * |
79072805 LW |
4995 | scan_formline(s) |
4996 | register char *s; | |
378cc40b | 4997 | { |
79072805 | 4998 | register char *eol; |
378cc40b | 4999 | register char *t; |
a0d0e21e | 5000 | SV *stuff = newSVpv("",0); |
79072805 | 5001 | bool needargs = FALSE; |
378cc40b | 5002 | |
79072805 | 5003 | while (!needargs) { |
85e6fe83 | 5004 | if (*s == '.' || *s == '}') { |
79072805 LW |
5005 | /*SUPPRESS 530*/ |
5006 | for (t = s+1; *t == ' ' || *t == '\t'; t++) ; | |
5007 | if (*t == '\n') | |
5008 | break; | |
5009 | } | |
0f85fab0 | 5010 | if (in_eval && !rsfp) { |
93a17b20 | 5011 | eol = strchr(s,'\n'); |
0f85fab0 LW |
5012 | if (!eol++) |
5013 | eol = bufend; | |
5014 | } | |
5015 | else | |
463ee0b2 | 5016 | eol = bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 | 5017 | if (*s != '#') { |
a0d0e21e LW |
5018 | for (t = s; t < eol; t++) { |
5019 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
5020 | needargs = FALSE; | |
5021 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 5022 | } |
a0d0e21e LW |
5023 | if (*t == '@' || *t == '^') |
5024 | needargs = TRUE; | |
378cc40b | 5025 | } |
a0d0e21e | 5026 | sv_catpvn(stuff, s, eol-s); |
79072805 LW |
5027 | } |
5028 | s = eol; | |
5029 | if (rsfp) { | |
fd049845 | 5030 | s = filter_gets(linestr, rsfp, 0); |
5031 | oldoldbufptr = oldbufptr = bufptr = linestart = SvPVX(linestr); | |
a0d0e21e | 5032 | bufend = bufptr + SvCUR(linestr); |
79072805 LW |
5033 | if (!s) { |
5034 | s = bufptr; | |
5035 | yyerror("Format not terminated"); | |
378cc40b LW |
5036 | break; |
5037 | } | |
378cc40b | 5038 | } |
463ee0b2 | 5039 | incline(s); |
79072805 | 5040 | } |
a0d0e21e LW |
5041 | enough: |
5042 | if (SvCUR(stuff)) { | |
463ee0b2 | 5043 | expect = XTERM; |
79072805 | 5044 | if (needargs) { |
a0d0e21e | 5045 | lex_state = LEX_NORMAL; |
79072805 LW |
5046 | nextval[nexttoke].ival = 0; |
5047 | force_next(','); | |
5048 | } | |
a0d0e21e LW |
5049 | else |
5050 | lex_state = LEX_FORMLINE; | |
79072805 LW |
5051 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
5052 | force_next(THING); | |
5053 | nextval[nexttoke].ival = OP_FORMLINE; | |
5054 | force_next(LSTOP); | |
378cc40b | 5055 | } |
79072805 | 5056 | else { |
8990e307 | 5057 | SvREFCNT_dec(stuff); |
85e6fe83 | 5058 | lex_formbrack = 0; |
79072805 LW |
5059 | bufptr = s; |
5060 | } | |
5061 | return s; | |
378cc40b | 5062 | } |
a687059c | 5063 | |
2f3197b3 | 5064 | static void |
a687059c LW |
5065 | set_csh() |
5066 | { | |
ae986130 LW |
5067 | #ifdef CSH |
5068 | if (!cshlen) | |
5069 | cshlen = strlen(cshname); | |
5070 | #endif | |
a687059c | 5071 | } |
463ee0b2 LW |
5072 | |
5073 | int | |
774d564b | 5074 | start_subparse(is_format, flags) |
5075 | I32 is_format; | |
fa83b5b6 | 5076 | U32 flags; |
8990e307 LW |
5077 | { |
5078 | int oldsavestack_ix = savestack_ix; | |
748a9306 LW |
5079 | CV* outsidecv = compcv; |
5080 | AV* comppadlist; | |
8990e307 | 5081 | |
e9a444f0 LW |
5082 | if (compcv) { |
5083 | assert(SvTYPE(compcv) == SVt_PVCV); | |
5084 | } | |
8990e307 LW |
5085 | save_I32(&subline); |
5086 | save_item(subname); | |
55497cff | 5087 | SAVEI32(padix); |
8990e307 LW |
5088 | SAVESPTR(curpad); |
5089 | SAVESPTR(comppad); | |
5090 | SAVESPTR(comppad_name); | |
748a9306 | 5091 | SAVESPTR(compcv); |
55497cff | 5092 | SAVEI32(comppad_name_fill); |
5093 | SAVEI32(min_intro_pending); | |
5094 | SAVEI32(max_intro_pending); | |
5095 | SAVEI32(pad_reset_pending); | |
748a9306 LW |
5096 | |
5097 | compcv = (CV*)NEWSV(1104,0); | |
774d564b | 5098 | sv_upgrade((SV *)compcv, is_format ? SVt_PVFM : SVt_PVCV); |
fa83b5b6 | 5099 | CvFLAGS(compcv) |= flags; |
748a9306 | 5100 | |
8990e307 LW |
5101 | comppad = newAV(); |
5102 | comppad_name = newAV(); | |
5103 | comppad_name_fill = 0; | |
5104 | min_intro_pending = 0; | |
5105 | av_push(comppad, Nullsv); | |
5106 | curpad = AvARRAY(comppad); | |
5107 | padix = 0; | |
8990e307 | 5108 | subline = curcop->cop_line; |
748a9306 LW |
5109 | |
5110 | comppadlist = newAV(); | |
5111 | AvREAL_off(comppadlist); | |
8e07c86e AD |
5112 | av_store(comppadlist, 0, (SV*)comppad_name); |
5113 | av_store(comppadlist, 1, (SV*)comppad); | |
748a9306 LW |
5114 | |
5115 | CvPADLIST(compcv) = comppadlist; | |
e9a444f0 | 5116 | CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc((SV*)outsidecv); |
748a9306 | 5117 | |
8990e307 LW |
5118 | return oldsavestack_ix; |
5119 | } | |
5120 | ||
5121 | int | |
5122 | yywarn(s) | |
5123 | char *s; | |
5124 | { | |
5125 | --error_count; | |
748a9306 LW |
5126 | in_eval |= 2; |
5127 | yyerror(s); | |
5128 | in_eval &= ~2; | |
5129 | return 0; | |
8990e307 LW |
5130 | } |
5131 | ||
5132 | int | |
463ee0b2 LW |
5133 | yyerror(s) |
5134 | char *s; | |
5135 | { | |
5136 | char tmpbuf[258]; | |
463ee0b2 LW |
5137 | char *tname = tmpbuf; |
5138 | ||
5139 | if (bufptr > oldoldbufptr && bufptr - oldoldbufptr < 200 && | |
5140 | oldoldbufptr != oldbufptr && oldbufptr != bufptr) { | |
5141 | while (isSPACE(*oldoldbufptr)) | |
5142 | oldoldbufptr++; | |
a0d0e21e | 5143 | sprintf(tname,"near \"%.*s\"",bufptr - oldoldbufptr, oldoldbufptr); |
463ee0b2 LW |
5144 | } |
5145 | else if (bufptr > oldbufptr && bufptr - oldbufptr < 200 && | |
5146 | oldbufptr != bufptr) { | |
5147 | while (isSPACE(*oldbufptr)) | |
5148 | oldbufptr++; | |
a0d0e21e | 5149 | sprintf(tname,"near \"%.*s\"",bufptr - oldbufptr, oldbufptr); |
463ee0b2 LW |
5150 | } |
5151 | else if (yychar > 255) | |
5152 | tname = "next token ???"; | |
5153 | else if (!yychar || (yychar == ';' && !rsfp)) | |
5154 | (void)strcpy(tname,"at EOF"); | |
5155 | else if ((yychar & 127) == 127) { | |
5156 | if (lex_state == LEX_NORMAL || | |
5157 | (lex_state == LEX_KNOWNEXT && lex_defer == LEX_NORMAL)) | |
5158 | (void)strcpy(tname,"at end of line"); | |
4633a7c4 LW |
5159 | else if (lex_inpat) |
5160 | (void)strcpy(tname,"within pattern"); | |
463ee0b2 | 5161 | else |
a0d0e21e | 5162 | (void)strcpy(tname,"within string"); |
463ee0b2 LW |
5163 | } |
5164 | else if (yychar < 32) | |
bbce6d69 | 5165 | (void)sprintf(tname,"next char ^%c",toCTRL(yychar)); |
463ee0b2 LW |
5166 | else |
5167 | (void)sprintf(tname,"next char %c",yychar); | |
5168 | (void)sprintf(buf, "%s at %s line %d, %s\n", | |
5169 | s,SvPVX(GvSV(curcop->cop_filegv)),curcop->cop_line,tname); | |
4fdae800 | 5170 | if (multi_start < multi_end && (U32)(curcop->cop_line - multi_end) <= 1) { |
463ee0b2 | 5171 | sprintf(buf+strlen(buf), |
4fdae800 | 5172 | " (Might be a runaway multi-line %c%c string starting on line %ld)\n", |
ff0cee69 | 5173 | (int)multi_open,(int)multi_close,(long)multi_start); |
a0d0e21e LW |
5174 | multi_end = 0; |
5175 | } | |
748a9306 LW |
5176 | if (in_eval & 2) |
5177 | warn("%s",buf); | |
5178 | else if (in_eval) | |
4633a7c4 | 5179 | sv_catpv(GvSV(errgv),buf); |
463ee0b2 | 5180 | else |
760ac839 | 5181 | PerlIO_printf(PerlIO_stderr(), "%s",buf); |
463ee0b2 LW |
5182 | if (++error_count >= 10) |
5183 | croak("%s has too many errors.\n", | |
5184 | SvPVX(GvSV(curcop->cop_filegv))); | |
4633a7c4 | 5185 | in_my = 0; |
463ee0b2 LW |
5186 | return 0; |
5187 | } |