Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* toke.c |
a687059c | 2 | * |
9607fc9c | 3 | * Copyright (c) 1991-1997, 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)); | |
8903cb82 | 25 | static char *scan_ident _((char *s, char *send, char *dest, STRLEN destlen, |
26 | I32 ck_uni)); | |
a0d0e21e LW |
27 | static char *scan_inputsymbol _((char *start)); |
28 | static char *scan_pat _((char *start)); | |
29 | static char *scan_str _((char *start)); | |
30 | static char *scan_subst _((char *start)); | |
31 | static char *scan_trans _((char *start)); | |
8903cb82 | 32 | static char *scan_word _((char *s, char *dest, STRLEN destlen, |
33 | int allow_package, STRLEN *slp)); | |
a0d0e21e LW |
34 | static char *skipspace _((char *s)); |
35 | static void checkcomma _((char *s, char *name, char *what)); | |
36 | static void force_ident _((char *s, int kind)); | |
37 | static void incline _((char *s)); | |
38 | static int intuit_method _((char *s, GV *gv)); | |
39 | static int intuit_more _((char *s)); | |
40 | static I32 lop _((I32 f, expectation x, char *s)); | |
41 | static void missingterm _((char *s)); | |
42 | static void no_op _((char *what, char *s)); | |
43 | static void set_csh _((void)); | |
44 | static I32 sublex_done _((void)); | |
55497cff | 45 | static I32 sublex_push _((void)); |
a0d0e21e LW |
46 | static I32 sublex_start _((void)); |
47 | #ifdef CRIPPLED_CC | |
48 | static int uni _((I32 f, char *s)); | |
49 | #endif | |
fd049845 | 50 | static char * filter_gets _((SV *sv, PerlIO *fp, STRLEN append)); |
6d5fb7e3 | 51 | static void restore_rsfp _((void *f)); |
2f3197b3 | 52 | |
fc36a67e | 53 | static char ident_too_long[] = "Identifier too long"; |
8903cb82 | 54 | |
fd049845 | 55 | static char *linestart; /* beg. of most recently read line */ |
56 | ||
bbce6d69 | 57 | static char pending_ident; /* pending identifier lookup */ |
58 | ||
55497cff | 59 | static struct { |
60 | I32 super_state; /* lexer state to save */ | |
61 | I32 sub_inwhat; /* "lex_inwhat" to use */ | |
62 | OP *sub_op; /* "lex_op" to use */ | |
63 | } sublex_info; | |
64 | ||
79072805 LW |
65 | /* The following are arranged oddly so that the guard on the switch statement |
66 | * can get by with a single comparison (if the compiler is smart enough). | |
67 | */ | |
68 | ||
55497cff | 69 | #define LEX_NORMAL 10 |
70 | #define LEX_INTERPNORMAL 9 | |
71 | #define LEX_INTERPCASEMOD 8 | |
72 | #define LEX_INTERPPUSH 7 | |
73 | #define LEX_INTERPSTART 6 | |
74 | #define LEX_INTERPEND 5 | |
75 | #define LEX_INTERPENDMAYBE 4 | |
76 | #define LEX_INTERPCONCAT 3 | |
77 | #define LEX_INTERPCONST 2 | |
78 | #define LEX_FORMLINE 1 | |
79 | #define LEX_KNOWNEXT 0 | |
79072805 | 80 | |
395c3793 LW |
81 | #ifdef I_FCNTL |
82 | #include <fcntl.h> | |
83 | #endif | |
fe14fcc3 LW |
84 | #ifdef I_SYS_FILE |
85 | #include <sys/file.h> | |
86 | #endif | |
395c3793 | 87 | |
a790bc05 | 88 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
89 | #ifdef I_UNISTD | |
90 | # include <unistd.h> /* Needed for execv() */ | |
91 | #endif | |
92 | ||
93 | ||
79072805 LW |
94 | #ifdef ff_next |
95 | #undef ff_next | |
d48672a2 LW |
96 | #endif |
97 | ||
79072805 | 98 | #include "keywords.h" |
fe14fcc3 | 99 | |
ae986130 LW |
100 | #ifdef CLINE |
101 | #undef CLINE | |
102 | #endif | |
79072805 | 103 | #define CLINE (copline = (curcop->cop_line < copline ? curcop->cop_line : copline)) |
378cc40b | 104 | |
79072805 LW |
105 | #define TOKEN(retval) return (bufptr = s,(int)retval) |
106 | #define OPERATOR(retval) return (expect = XTERM,bufptr = s,(int)retval) | |
a0d0e21e | 107 | #define AOPERATOR(retval) return ao((expect = XTERM,bufptr = s,(int)retval)) |
79072805 | 108 | #define PREBLOCK(retval) return (expect = XBLOCK,bufptr = s,(int)retval) |
a0d0e21e | 109 | #define PRETERMBLOCK(retval) return (expect = XTERMBLOCK,bufptr = s,(int)retval) |
79072805 LW |
110 | #define PREREF(retval) return (expect = XREF,bufptr = s,(int)retval) |
111 | #define TERM(retval) return (CLINE, expect = XOPERATOR,bufptr = s,(int)retval) | |
463ee0b2 | 112 | #define LOOPX(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LOOPEX) |
79072805 LW |
113 | #define FTST(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)UNIOP) |
114 | #define FUN0(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC0) | |
115 | #define FUN1(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC1) | |
a0d0e21e LW |
116 | #define BOop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITOROP)) |
117 | #define BAop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITANDOP)) | |
118 | #define SHop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)SHIFTOP)) | |
119 | #define PWop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)POWOP)) | |
79072805 | 120 | #define PMop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)MATCHOP) |
a0d0e21e LW |
121 | #define Aop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)ADDOP)) |
122 | #define Mop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)MULOP)) | |
79072805 LW |
123 | #define Eop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)EQOP) |
124 | #define Rop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)RELOP) | |
2f3197b3 | 125 | |
a687059c LW |
126 | /* This bit of chicanery makes a unary function followed by |
127 | * a parenthesis into a function with one argument, highest precedence. | |
128 | */ | |
2f3197b3 | 129 | #define UNI(f) return(yylval.ival = f, \ |
79072805 | 130 | expect = XTERM, \ |
2f3197b3 LW |
131 | bufptr = s, \ |
132 | last_uni = oldbufptr, \ | |
a0d0e21e | 133 | last_lop_op = f, \ |
a687059c LW |
134 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) ) |
135 | ||
79072805 LW |
136 | #define UNIBRACK(f) return(yylval.ival = f, \ |
137 | bufptr = s, \ | |
138 | last_uni = oldbufptr, \ | |
139 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) ) | |
140 | ||
9f68db38 | 141 | /* grandfather return to old style */ |
79072805 LW |
142 | #define OLDLOP(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LSTOP) |
143 | ||
a0d0e21e LW |
144 | static int |
145 | ao(toketype) | |
146 | int toketype; | |
147 | { | |
148 | if (*bufptr == '=') { | |
149 | bufptr++; | |
150 | if (toketype == ANDAND) | |
151 | yylval.ival = OP_ANDASSIGN; | |
152 | else if (toketype == OROR) | |
153 | yylval.ival = OP_ORASSIGN; | |
154 | toketype = ASSIGNOP; | |
155 | } | |
156 | return toketype; | |
157 | } | |
158 | ||
8990e307 LW |
159 | static void |
160 | no_op(what, s) | |
463ee0b2 | 161 | char *what; |
8990e307 | 162 | char *s; |
463ee0b2 | 163 | { |
748a9306 | 164 | char *oldbp = bufptr; |
fd049845 | 165 | bool is_first = (oldbufptr == linestart); |
68dc0745 | 166 | |
8990e307 | 167 | bufptr = s; |
46fc3d4c | 168 | yywarn(form("%s found where operator expected", what)); |
748a9306 | 169 | if (is_first) |
a0d0e21e | 170 | warn("\t(Missing semicolon on previous line?)\n"); |
748a9306 LW |
171 | else if (oldoldbufptr && isIDFIRST(*oldoldbufptr)) { |
172 | char *t; | |
173 | for (t = oldoldbufptr; *t && (isALNUM(*t) || *t == ':'); t++) ; | |
174 | if (t < bufptr && isSPACE(*t)) | |
175 | warn("\t(Do you need to predeclare %.*s?)\n", | |
176 | t - oldoldbufptr, oldoldbufptr); | |
177 | ||
178 | } | |
179 | else | |
180 | warn("\t(Missing operator before %.*s?)\n", s - oldbp, oldbp); | |
181 | bufptr = oldbp; | |
8990e307 LW |
182 | } |
183 | ||
184 | static void | |
185 | missingterm(s) | |
186 | char *s; | |
187 | { | |
188 | char tmpbuf[3]; | |
189 | char q; | |
190 | if (s) { | |
191 | char *nl = strrchr(s,'\n'); | |
192 | if (nl) | |
193 | *nl = '\0'; | |
194 | } | |
195 | else if (multi_close < 32 || multi_close == 127) { | |
196 | *tmpbuf = '^'; | |
bbce6d69 | 197 | tmpbuf[1] = toCTRL(multi_close); |
8990e307 LW |
198 | s = "\\n"; |
199 | tmpbuf[2] = '\0'; | |
200 | s = tmpbuf; | |
201 | } | |
202 | else { | |
203 | *tmpbuf = multi_close; | |
204 | tmpbuf[1] = '\0'; | |
205 | s = tmpbuf; | |
206 | } | |
207 | q = strchr(s,'"') ? '\'' : '"'; | |
208 | croak("Can't find string terminator %c%s%c anywhere before EOF",q,s,q); | |
463ee0b2 | 209 | } |
79072805 LW |
210 | |
211 | void | |
a0d0e21e LW |
212 | deprecate(s) |
213 | char *s; | |
214 | { | |
215 | if (dowarn) | |
216 | warn("Use of %s is deprecated", s); | |
217 | } | |
218 | ||
219 | static void | |
220 | depcom() | |
221 | { | |
222 | deprecate("comma-less variable list"); | |
223 | } | |
224 | ||
225 | void | |
8990e307 LW |
226 | lex_start(line) |
227 | SV *line; | |
79072805 | 228 | { |
8990e307 LW |
229 | char *s; |
230 | STRLEN len; | |
231 | ||
55497cff | 232 | SAVEI32(lex_dojoin); |
233 | SAVEI32(lex_brackets); | |
234 | SAVEI32(lex_fakebrack); | |
235 | SAVEI32(lex_casemods); | |
236 | SAVEI32(lex_starts); | |
237 | SAVEI32(lex_state); | |
a0d0e21e | 238 | SAVESPTR(lex_inpat); |
55497cff | 239 | SAVEI32(lex_inwhat); |
240 | SAVEI16(curcop->cop_line); | |
85e6fe83 LW |
241 | SAVEPPTR(bufptr); |
242 | SAVEPPTR(bufend); | |
243 | SAVEPPTR(oldbufptr); | |
244 | SAVEPPTR(oldoldbufptr); | |
fd049845 | 245 | SAVEPPTR(linestart); |
463ee0b2 | 246 | SAVESPTR(linestr); |
85e6fe83 | 247 | SAVEPPTR(lex_brackstack); |
a0d0e21e | 248 | SAVEPPTR(lex_casestack); |
6d5fb7e3 | 249 | SAVEDESTRUCTOR(restore_rsfp, rsfp); |
463ee0b2 | 250 | |
79072805 LW |
251 | lex_state = LEX_NORMAL; |
252 | lex_defer = 0; | |
8990e307 | 253 | expect = XSTATE; |
79072805 LW |
254 | lex_brackets = 0; |
255 | lex_fakebrack = 0; | |
8990e307 | 256 | New(899, lex_brackstack, 120, char); |
a0d0e21e | 257 | New(899, lex_casestack, 12, char); |
8990e307 | 258 | SAVEFREEPV(lex_brackstack); |
a0d0e21e | 259 | SAVEFREEPV(lex_casestack); |
79072805 | 260 | lex_casemods = 0; |
a0d0e21e | 261 | *lex_casestack = '\0'; |
79072805 LW |
262 | lex_dojoin = 0; |
263 | lex_starts = 0; | |
264 | if (lex_stuff) | |
8990e307 | 265 | SvREFCNT_dec(lex_stuff); |
79072805 LW |
266 | lex_stuff = Nullsv; |
267 | if (lex_repl) | |
8990e307 | 268 | SvREFCNT_dec(lex_repl); |
79072805 LW |
269 | lex_repl = Nullsv; |
270 | lex_inpat = 0; | |
271 | lex_inwhat = 0; | |
8990e307 LW |
272 | linestr = line; |
273 | if (SvREADONLY(linestr)) | |
274 | linestr = sv_2mortal(newSVsv(linestr)); | |
275 | s = SvPV(linestr, len); | |
276 | if (len && s[len-1] != ';') { | |
a0d0e21e | 277 | if (!(SvFLAGS(linestr) & SVs_TEMP)) |
8990e307 LW |
278 | linestr = sv_2mortal(newSVsv(linestr)); |
279 | sv_catpvn(linestr, "\n;", 2); | |
280 | } | |
281 | SvTEMP_off(linestr); | |
fd049845 | 282 | oldoldbufptr = oldbufptr = bufptr = linestart = SvPVX(linestr); |
79072805 | 283 | bufend = bufptr + SvCUR(linestr); |
c07a80fd | 284 | SvREFCNT_dec(rs); |
285 | rs = newSVpv("\n", 1); | |
8990e307 | 286 | rsfp = 0; |
79072805 | 287 | } |
a687059c | 288 | |
463ee0b2 LW |
289 | void |
290 | lex_end() | |
291 | { | |
6ca21dd3 | 292 | doextract = FALSE; |
463ee0b2 LW |
293 | } |
294 | ||
295 | static void | |
6d5fb7e3 CS |
296 | restore_rsfp(f) |
297 | void *f; | |
298 | { | |
760ac839 | 299 | PerlIO *fp = (PerlIO*)f; |
6d5fb7e3 | 300 | |
760ac839 LW |
301 | if (rsfp == PerlIO_stdin()) |
302 | PerlIO_clearerr(rsfp); | |
a5f75d66 | 303 | else if (rsfp && (rsfp != fp)) |
760ac839 | 304 | PerlIO_close(rsfp); |
6d5fb7e3 CS |
305 | rsfp = fp; |
306 | } | |
307 | ||
308 | static void | |
463ee0b2 LW |
309 | incline(s) |
310 | char *s; | |
311 | { | |
312 | char *t; | |
313 | char *n; | |
314 | char ch; | |
315 | int sawline = 0; | |
316 | ||
317 | curcop->cop_line++; | |
318 | if (*s++ != '#') | |
319 | return; | |
320 | while (*s == ' ' || *s == '\t') s++; | |
321 | if (strnEQ(s, "line ", 5)) { | |
322 | s += 5; | |
323 | sawline = 1; | |
324 | } | |
325 | if (!isDIGIT(*s)) | |
326 | return; | |
327 | n = s; | |
328 | while (isDIGIT(*s)) | |
329 | s++; | |
330 | while (*s == ' ' || *s == '\t') | |
331 | s++; | |
332 | if (*s == '"' && (t = strchr(s+1, '"'))) | |
333 | s++; | |
334 | else { | |
335 | if (!sawline) | |
336 | return; /* false alarm */ | |
337 | for (t = s; !isSPACE(*t); t++) ; | |
338 | } | |
339 | ch = *t; | |
340 | *t = '\0'; | |
341 | if (t - s > 0) | |
342 | curcop->cop_filegv = gv_fetchfile(s); | |
343 | else | |
344 | curcop->cop_filegv = gv_fetchfile(origfilename); | |
345 | *t = ch; | |
346 | curcop->cop_line = atoi(n)-1; | |
347 | } | |
348 | ||
8990e307 | 349 | static char * |
a687059c LW |
350 | skipspace(s) |
351 | register char *s; | |
352 | { | |
85e6fe83 | 353 | if (lex_formbrack && lex_brackets <= lex_formbrack) { |
463ee0b2 LW |
354 | while (s < bufend && (*s == ' ' || *s == '\t')) |
355 | s++; | |
356 | return s; | |
357 | } | |
358 | for (;;) { | |
fd049845 | 359 | STRLEN prevlen; |
463ee0b2 LW |
360 | while (s < bufend && isSPACE(*s)) |
361 | s++; | |
362 | if (s < bufend && *s == '#') { | |
363 | while (s < bufend && *s != '\n') | |
364 | s++; | |
365 | if (s < bufend) | |
366 | s++; | |
367 | } | |
a0d0e21e | 368 | if (s < bufend || !rsfp || lex_state != LEX_NORMAL) |
463ee0b2 | 369 | return s; |
fd049845 | 370 | if ((s = filter_gets(linestr, rsfp, (prevlen = SvCUR(linestr)))) == Nullch) { |
a0d0e21e LW |
371 | if (minus_n || minus_p) { |
372 | sv_setpv(linestr,minus_p ? ";}continue{print" : ""); | |
373 | sv_catpv(linestr,";}"); | |
374 | minus_n = minus_p = 0; | |
375 | } | |
376 | else | |
377 | sv_setpv(linestr,";"); | |
fd049845 | 378 | oldoldbufptr = oldbufptr = bufptr = s = linestart = SvPVX(linestr); |
a0d0e21e LW |
379 | bufend = SvPVX(linestr) + SvCUR(linestr); |
380 | if (preprocess && !in_eval) | |
8990e307 | 381 | (void)my_pclose(rsfp); |
760ac839 LW |
382 | else if ((PerlIO*)rsfp == PerlIO_stdin()) |
383 | PerlIO_clearerr(rsfp); | |
8990e307 | 384 | else |
760ac839 | 385 | (void)PerlIO_close(rsfp); |
8990e307 | 386 | rsfp = Nullfp; |
463ee0b2 LW |
387 | return s; |
388 | } | |
fd049845 | 389 | linestart = bufptr = s + prevlen; |
390 | bufend = s + SvCUR(linestr); | |
391 | s = bufptr; | |
a0d0e21e | 392 | incline(s); |
8990e307 LW |
393 | if (perldb && curstash != debstash) { |
394 | SV *sv = NEWSV(85,0); | |
395 | ||
396 | sv_upgrade(sv, SVt_PVMG); | |
fd049845 | 397 | sv_setpvn(sv,bufptr,bufend-bufptr); |
8990e307 LW |
398 | av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv); |
399 | } | |
463ee0b2 | 400 | } |
a687059c | 401 | } |
378cc40b | 402 | |
8990e307 | 403 | static void |
2f3197b3 LW |
404 | check_uni() { |
405 | char *s; | |
406 | char ch; | |
a0d0e21e | 407 | char *t; |
2f3197b3 LW |
408 | |
409 | if (oldoldbufptr != last_uni) | |
410 | return; | |
411 | while (isSPACE(*last_uni)) | |
412 | last_uni++; | |
e334a159 | 413 | for (s = last_uni; isALNUM(*s) || *s == '-'; s++) ; |
a0d0e21e LW |
414 | if ((t = strchr(s, '(')) && t < bufptr) |
415 | return; | |
2f3197b3 LW |
416 | ch = *s; |
417 | *s = '\0'; | |
418 | warn("Warning: Use of \"%s\" without parens is ambiguous", last_uni); | |
419 | *s = ch; | |
420 | } | |
421 | ||
ffed7fef LW |
422 | #ifdef CRIPPLED_CC |
423 | ||
424 | #undef UNI | |
ffed7fef | 425 | #define UNI(f) return uni(f,s) |
ffed7fef | 426 | |
8990e307 | 427 | static int |
ffed7fef | 428 | uni(f,s) |
79072805 | 429 | I32 f; |
ffed7fef LW |
430 | char *s; |
431 | { | |
432 | yylval.ival = f; | |
79072805 | 433 | expect = XTERM; |
ffed7fef | 434 | bufptr = s; |
2f3197b3 | 435 | last_uni = oldbufptr; |
a0d0e21e | 436 | last_lop_op = f; |
ffed7fef LW |
437 | if (*s == '(') |
438 | return FUNC1; | |
439 | s = skipspace(s); | |
440 | if (*s == '(') | |
441 | return FUNC1; | |
442 | else | |
443 | return UNIOP; | |
444 | } | |
445 | ||
a0d0e21e LW |
446 | #endif /* CRIPPLED_CC */ |
447 | ||
448 | #define LOP(f,x) return lop(f,x,s) | |
449 | ||
8990e307 | 450 | static I32 |
f86702cc | 451 | lop |
452 | #ifdef CAN_PROTOTYPE | |
453 | (I32 f, expectation x, char *s) | |
454 | #else | |
455 | (f,x,s) | |
79072805 | 456 | I32 f; |
a0d0e21e | 457 | expectation x; |
ffed7fef | 458 | char *s; |
f86702cc | 459 | #endif /* CAN_PROTOTYPE */ |
ffed7fef | 460 | { |
79072805 | 461 | yylval.ival = f; |
35c8bce7 | 462 | CLINE; |
a0d0e21e | 463 | expect = x; |
79072805 | 464 | bufptr = s; |
8990e307 LW |
465 | last_lop = oldbufptr; |
466 | last_lop_op = f; | |
a0d0e21e LW |
467 | if (nexttoke) |
468 | return LSTOP; | |
79072805 LW |
469 | if (*s == '(') |
470 | return FUNC; | |
471 | s = skipspace(s); | |
472 | if (*s == '(') | |
473 | return FUNC; | |
474 | else | |
475 | return LSTOP; | |
476 | } | |
477 | ||
8990e307 | 478 | static void |
79072805 LW |
479 | force_next(type) |
480 | I32 type; | |
481 | { | |
482 | nexttype[nexttoke] = type; | |
483 | nexttoke++; | |
484 | if (lex_state != LEX_KNOWNEXT) { | |
485 | lex_defer = lex_state; | |
463ee0b2 | 486 | lex_expect = expect; |
79072805 LW |
487 | lex_state = LEX_KNOWNEXT; |
488 | } | |
489 | } | |
490 | ||
8990e307 | 491 | static char * |
a0d0e21e | 492 | force_word(start,token,check_keyword,allow_pack,allow_tick) |
463ee0b2 | 493 | register char *start; |
79072805 | 494 | int token; |
463ee0b2 | 495 | int check_keyword; |
a0d0e21e | 496 | int allow_pack; |
463ee0b2 | 497 | int allow_tick; |
79072805 | 498 | { |
463ee0b2 LW |
499 | register char *s; |
500 | STRLEN len; | |
501 | ||
502 | start = skipspace(start); | |
503 | s = start; | |
a0d0e21e LW |
504 | if (isIDFIRST(*s) || |
505 | (allow_pack && *s == ':') || | |
506 | (allow_tick && *s == '\'') ) | |
507 | { | |
8903cb82 | 508 | s = scan_word(s, tokenbuf, sizeof tokenbuf, allow_pack, &len); |
463ee0b2 LW |
509 | if (check_keyword && keyword(tokenbuf, len)) |
510 | return start; | |
511 | if (token == METHOD) { | |
512 | s = skipspace(s); | |
513 | if (*s == '(') | |
514 | expect = XTERM; | |
515 | else { | |
516 | expect = XOPERATOR; | |
517 | force_next(')'); | |
518 | force_next('('); | |
519 | } | |
79072805 | 520 | } |
463ee0b2 | 521 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST,0, newSVpv(tokenbuf,0)); |
8990e307 | 522 | nextval[nexttoke].opval->op_private |= OPpCONST_BARE; |
79072805 LW |
523 | force_next(token); |
524 | } | |
525 | return s; | |
526 | } | |
527 | ||
8990e307 | 528 | static void |
a0d0e21e | 529 | force_ident(s, kind) |
79072805 | 530 | register char *s; |
a0d0e21e | 531 | int kind; |
79072805 LW |
532 | { |
533 | if (s && *s) { | |
748a9306 LW |
534 | OP* op = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0)); |
535 | nextval[nexttoke].opval = op; | |
79072805 | 536 | force_next(WORD); |
748a9306 LW |
537 | if (kind) { |
538 | op->op_private = OPpCONST_ENTERED; | |
55497cff | 539 | /* XXX see note in pp_entereval() for why we forgo typo |
540 | warnings if the symbol must be introduced in an eval. | |
541 | GSAR 96-10-12 */ | |
542 | gv_fetchpv(s, in_eval ? GV_ADDMULTI : TRUE, | |
a0d0e21e LW |
543 | kind == '$' ? SVt_PV : |
544 | kind == '@' ? SVt_PVAV : | |
545 | kind == '%' ? SVt_PVHV : | |
546 | SVt_PVGV | |
547 | ); | |
748a9306 | 548 | } |
79072805 LW |
549 | } |
550 | } | |
551 | ||
89bfa8cd | 552 | static char * |
553 | force_version(s) | |
554 | char *s; | |
555 | { | |
556 | OP *version = Nullop; | |
557 | ||
558 | s = skipspace(s); | |
559 | ||
560 | /* default VERSION number -- GBARR */ | |
561 | ||
562 | if(isDIGIT(*s)) { | |
563 | char *d; | |
564 | int c; | |
55497cff | 565 | for( d=s, c = 1; isDIGIT(*d) || *d == '_' || (*d == '.' && c--); d++); |
89bfa8cd | 566 | if((*d == ';' || isSPACE(*d)) && *(skipspace(d)) != ',') { |
567 | s = scan_num(s); | |
568 | /* real VERSION number -- GBARR */ | |
569 | version = yylval.opval; | |
570 | } | |
571 | } | |
572 | ||
573 | /* NOTE: The parser sees the package name and the VERSION swapped */ | |
574 | nextval[nexttoke].opval = version; | |
575 | force_next(WORD); | |
576 | ||
577 | return (s); | |
578 | } | |
579 | ||
8990e307 | 580 | static SV * |
79072805 LW |
581 | q(sv) |
582 | SV *sv; | |
583 | { | |
584 | register char *s; | |
585 | register char *send; | |
586 | register char *d; | |
463ee0b2 | 587 | STRLEN len; |
79072805 LW |
588 | |
589 | if (!SvLEN(sv)) | |
590 | return sv; | |
591 | ||
a0d0e21e | 592 | s = SvPV_force(sv, len); |
748a9306 LW |
593 | if (SvIVX(sv) == -1) |
594 | return sv; | |
463ee0b2 | 595 | send = s + len; |
79072805 LW |
596 | while (s < send && *s != '\\') |
597 | s++; | |
598 | if (s == send) | |
599 | return sv; | |
600 | d = s; | |
79072805 LW |
601 | while (s < send) { |
602 | if (*s == '\\') { | |
a0d0e21e | 603 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
604 | s++; /* all that, just for this */ |
605 | } | |
606 | *d++ = *s++; | |
607 | } | |
608 | *d = '\0'; | |
463ee0b2 | 609 | SvCUR_set(sv, d - SvPVX(sv)); |
79072805 LW |
610 | |
611 | return sv; | |
612 | } | |
613 | ||
8990e307 | 614 | static I32 |
79072805 LW |
615 | sublex_start() |
616 | { | |
617 | register I32 op_type = yylval.ival; | |
79072805 LW |
618 | |
619 | if (op_type == OP_NULL) { | |
620 | yylval.opval = lex_op; | |
621 | lex_op = Nullop; | |
622 | return THING; | |
623 | } | |
624 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
1c9c84df CS |
625 | SV *sv = q(lex_stuff); |
626 | STRLEN len; | |
627 | char *p = SvPV(sv, len); | |
628 | yylval.opval = (OP*)newSVOP(op_type, 0, newSVpv(p, len)); | |
629 | SvREFCNT_dec(sv); | |
79072805 LW |
630 | lex_stuff = Nullsv; |
631 | return THING; | |
632 | } | |
633 | ||
55497cff | 634 | sublex_info.super_state = lex_state; |
635 | sublex_info.sub_inwhat = op_type; | |
636 | sublex_info.sub_op = lex_op; | |
637 | lex_state = LEX_INTERPPUSH; | |
638 | ||
639 | expect = XTERM; | |
640 | if (lex_op) { | |
641 | yylval.opval = lex_op; | |
642 | lex_op = Nullop; | |
643 | return PMFUNC; | |
644 | } | |
645 | else | |
646 | return FUNC; | |
647 | } | |
648 | ||
649 | static I32 | |
650 | sublex_push() | |
651 | { | |
79072805 | 652 | push_scope(); |
55497cff | 653 | |
654 | lex_state = sublex_info.super_state; | |
655 | SAVEI32(lex_dojoin); | |
656 | SAVEI32(lex_brackets); | |
657 | SAVEI32(lex_fakebrack); | |
658 | SAVEI32(lex_casemods); | |
659 | SAVEI32(lex_starts); | |
660 | SAVEI32(lex_state); | |
a0d0e21e | 661 | SAVESPTR(lex_inpat); |
55497cff | 662 | SAVEI32(lex_inwhat); |
663 | SAVEI16(curcop->cop_line); | |
85e6fe83 LW |
664 | SAVEPPTR(bufptr); |
665 | SAVEPPTR(oldbufptr); | |
666 | SAVEPPTR(oldoldbufptr); | |
fd049845 | 667 | SAVEPPTR(linestart); |
79072805 | 668 | SAVESPTR(linestr); |
85e6fe83 | 669 | SAVEPPTR(lex_brackstack); |
a0d0e21e | 670 | SAVEPPTR(lex_casestack); |
79072805 LW |
671 | |
672 | linestr = lex_stuff; | |
673 | lex_stuff = Nullsv; | |
674 | ||
fd049845 | 675 | bufend = bufptr = oldbufptr = oldoldbufptr = linestart = SvPVX(linestr); |
79072805 | 676 | bufend += SvCUR(linestr); |
8990e307 | 677 | SAVEFREESV(linestr); |
79072805 LW |
678 | |
679 | lex_dojoin = FALSE; | |
680 | lex_brackets = 0; | |
681 | lex_fakebrack = 0; | |
8990e307 | 682 | New(899, lex_brackstack, 120, char); |
a0d0e21e | 683 | New(899, lex_casestack, 12, char); |
8990e307 | 684 | SAVEFREEPV(lex_brackstack); |
a0d0e21e | 685 | SAVEFREEPV(lex_casestack); |
79072805 | 686 | lex_casemods = 0; |
a0d0e21e | 687 | *lex_casestack = '\0'; |
79072805 LW |
688 | lex_starts = 0; |
689 | lex_state = LEX_INTERPCONCAT; | |
690 | curcop->cop_line = multi_start; | |
691 | ||
55497cff | 692 | lex_inwhat = sublex_info.sub_inwhat; |
693 | if (lex_inwhat == OP_MATCH || lex_inwhat == OP_SUBST) | |
694 | lex_inpat = sublex_info.sub_op; | |
79072805 | 695 | else |
55497cff | 696 | lex_inpat = Nullop; |
79072805 | 697 | |
55497cff | 698 | return '('; |
79072805 LW |
699 | } |
700 | ||
8990e307 | 701 | static I32 |
79072805 LW |
702 | sublex_done() |
703 | { | |
704 | if (!lex_starts++) { | |
705 | expect = XOPERATOR; | |
93a17b20 | 706 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv("",0)); |
79072805 LW |
707 | return THING; |
708 | } | |
709 | ||
710 | if (lex_casemods) { /* oops, we've got some unbalanced parens */ | |
711 | lex_state = LEX_INTERPCASEMOD; | |
712 | return yylex(); | |
713 | } | |
714 | ||
79072805 LW |
715 | /* Is there a right-hand side to take care of? */ |
716 | if (lex_repl && (lex_inwhat == OP_SUBST || lex_inwhat == OP_TRANS)) { | |
717 | linestr = lex_repl; | |
718 | lex_inpat = 0; | |
fd049845 | 719 | bufend = bufptr = oldbufptr = oldoldbufptr = linestart = SvPVX(linestr); |
79072805 | 720 | bufend += SvCUR(linestr); |
8990e307 | 721 | SAVEFREESV(linestr); |
79072805 LW |
722 | lex_dojoin = FALSE; |
723 | lex_brackets = 0; | |
724 | lex_fakebrack = 0; | |
725 | lex_casemods = 0; | |
a0d0e21e | 726 | *lex_casestack = '\0'; |
79072805 LW |
727 | lex_starts = 0; |
728 | if (SvCOMPILED(lex_repl)) { | |
729 | lex_state = LEX_INTERPNORMAL; | |
730 | lex_starts++; | |
731 | } | |
732 | else | |
733 | lex_state = LEX_INTERPCONCAT; | |
734 | lex_repl = Nullsv; | |
735 | return ','; | |
ffed7fef LW |
736 | } |
737 | else { | |
79072805 | 738 | pop_scope(); |
463ee0b2 | 739 | bufend = SvPVX(linestr); |
79072805 LW |
740 | bufend += SvCUR(linestr); |
741 | expect = XOPERATOR; | |
742 | return ')'; | |
ffed7fef LW |
743 | } |
744 | } | |
745 | ||
8990e307 | 746 | static char * |
79072805 LW |
747 | scan_const(start) |
748 | char *start; | |
749 | { | |
750 | register char *send = bufend; | |
751 | SV *sv = NEWSV(93, send - start); | |
752 | register char *s = start; | |
463ee0b2 | 753 | register char *d = SvPVX(sv); |
79072805 LW |
754 | bool dorange = FALSE; |
755 | I32 len; | |
756 | char *leave = | |
757 | lex_inpat | |
748a9306 | 758 | ? "\\.^$@AGZdDwWsSbB+*?|()-nrtfeaxc0123456789[{]} \t\n\r\f\v#" |
79072805 LW |
759 | : (lex_inwhat & OP_TRANS) |
760 | ? "" | |
761 | : ""; | |
762 | ||
763 | while (s < send || dorange) { | |
764 | if (lex_inwhat == OP_TRANS) { | |
765 | if (dorange) { | |
766 | I32 i; | |
767 | I32 max; | |
463ee0b2 | 768 | i = d - SvPVX(sv); |
79072805 | 769 | SvGROW(sv, SvLEN(sv) + 256); |
463ee0b2 | 770 | d = SvPVX(sv) + i; |
79072805 | 771 | d -= 2; |
91b7def8 | 772 | max = (U8)d[1]; |
773 | for (i = (U8)*d; i <= max; i++) | |
79072805 LW |
774 | *d++ = i; |
775 | dorange = FALSE; | |
776 | continue; | |
777 | } | |
778 | else if (*s == '-' && s+1 < send && s != start) { | |
779 | dorange = TRUE; | |
780 | s++; | |
781 | } | |
782 | } | |
748a9306 LW |
783 | else if (*s == '(' && lex_inpat && s[1] == '?' && s[2] == '#') { |
784 | while (s < send && *s != ')') | |
785 | *d++ = *s++; | |
786 | } | |
787 | else if (*s == '#' && lex_inpat && | |
788 | ((PMOP*)lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
789 | while (s+1 < send && *s != '\n') | |
790 | *d++ = *s++; | |
791 | } | |
a0d0e21e | 792 | else if (*s == '@' && s[1] && (isALNUM(s[1]) || strchr(":'{$", s[1]))) |
79072805 LW |
793 | break; |
794 | else if (*s == '$') { | |
795 | if (!lex_inpat) /* not a regexp, so $ must be var */ | |
796 | break; | |
a0d0e21e | 797 | if (s + 1 < send && !strchr(")| \n\t", s[1])) |
79072805 LW |
798 | break; /* in regexp, $ might be tail anchor */ |
799 | } | |
800 | if (*s == '\\' && s+1 < send) { | |
801 | s++; | |
93a17b20 | 802 | if (*s && strchr(leave, *s)) { |
79072805 LW |
803 | *d++ = '\\'; |
804 | *d++ = *s++; | |
805 | continue; | |
806 | } | |
807 | if (lex_inwhat == OP_SUBST && !lex_inpat && | |
a0d0e21e | 808 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 809 | { |
a0d0e21e LW |
810 | if (dowarn) |
811 | warn("\\%c better written as $%c", *s, *s); | |
79072805 LW |
812 | *--s = '$'; |
813 | break; | |
814 | } | |
a0d0e21e | 815 | if (lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
816 | --s; |
817 | break; | |
818 | } | |
819 | switch (*s) { | |
820 | case '-': | |
821 | if (lex_inwhat == OP_TRANS) { | |
822 | *d++ = *s++; | |
823 | continue; | |
824 | } | |
825 | /* FALL THROUGH */ | |
826 | default: | |
827 | *d++ = *s++; | |
828 | continue; | |
829 | case '0': case '1': case '2': case '3': | |
830 | case '4': case '5': case '6': case '7': | |
831 | *d++ = scan_oct(s, 3, &len); | |
832 | s += len; | |
833 | continue; | |
834 | case 'x': | |
835 | *d++ = scan_hex(++s, 2, &len); | |
836 | s += len; | |
837 | continue; | |
838 | case 'c': | |
839 | s++; | |
bbce6d69 | 840 | len = *s++; |
841 | *d++ = toCTRL(len); | |
79072805 LW |
842 | continue; |
843 | case 'b': | |
844 | *d++ = '\b'; | |
845 | break; | |
846 | case 'n': | |
847 | *d++ = '\n'; | |
848 | break; | |
849 | case 'r': | |
850 | *d++ = '\r'; | |
851 | break; | |
852 | case 'f': | |
853 | *d++ = '\f'; | |
854 | break; | |
855 | case 't': | |
856 | *d++ = '\t'; | |
857 | break; | |
858 | case 'e': | |
859 | *d++ = '\033'; | |
860 | break; | |
861 | case 'a': | |
862 | *d++ = '\007'; | |
863 | break; | |
864 | } | |
865 | s++; | |
866 | continue; | |
867 | } | |
868 | *d++ = *s++; | |
869 | } | |
870 | *d = '\0'; | |
463ee0b2 | 871 | SvCUR_set(sv, d - SvPVX(sv)); |
79072805 LW |
872 | SvPOK_on(sv); |
873 | ||
874 | if (SvCUR(sv) + 5 < SvLEN(sv)) { | |
875 | SvLEN_set(sv, SvCUR(sv) + 1); | |
463ee0b2 | 876 | Renew(SvPVX(sv), SvLEN(sv), char); |
79072805 LW |
877 | } |
878 | if (s > bufptr) | |
879 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); | |
880 | else | |
8990e307 | 881 | SvREFCNT_dec(sv); |
79072805 LW |
882 | return s; |
883 | } | |
884 | ||
885 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ | |
8990e307 | 886 | static int |
79072805 LW |
887 | intuit_more(s) |
888 | register char *s; | |
889 | { | |
890 | if (lex_brackets) | |
891 | return TRUE; | |
892 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
893 | return TRUE; | |
894 | if (*s != '{' && *s != '[') | |
895 | return FALSE; | |
896 | if (!lex_inpat) | |
897 | return TRUE; | |
898 | ||
899 | /* In a pattern, so maybe we have {n,m}. */ | |
900 | if (*s == '{') { | |
901 | s++; | |
902 | if (!isDIGIT(*s)) | |
903 | return TRUE; | |
904 | while (isDIGIT(*s)) | |
905 | s++; | |
906 | if (*s == ',') | |
907 | s++; | |
908 | while (isDIGIT(*s)) | |
909 | s++; | |
910 | if (*s == '}') | |
911 | return FALSE; | |
912 | return TRUE; | |
913 | ||
914 | } | |
915 | ||
916 | /* On the other hand, maybe we have a character class */ | |
917 | ||
918 | s++; | |
919 | if (*s == ']' || *s == '^') | |
920 | return FALSE; | |
921 | else { | |
922 | int weight = 2; /* let's weigh the evidence */ | |
923 | char seen[256]; | |
924 | unsigned char un_char = 0, last_un_char; | |
93a17b20 | 925 | char *send = strchr(s,']'); |
8903cb82 | 926 | char tmpbuf[sizeof tokenbuf * 4]; |
79072805 LW |
927 | |
928 | if (!send) /* has to be an expression */ | |
929 | return TRUE; | |
930 | ||
931 | Zero(seen,256,char); | |
932 | if (*s == '$') | |
933 | weight -= 3; | |
934 | else if (isDIGIT(*s)) { | |
935 | if (s[1] != ']') { | |
936 | if (isDIGIT(s[1]) && s[2] == ']') | |
937 | weight -= 10; | |
938 | } | |
939 | else | |
940 | weight -= 100; | |
941 | } | |
942 | for (; s < send; s++) { | |
943 | last_un_char = un_char; | |
944 | un_char = (unsigned char)*s; | |
945 | switch (*s) { | |
946 | case '@': | |
947 | case '&': | |
948 | case '$': | |
949 | weight -= seen[un_char] * 10; | |
950 | if (isALNUM(s[1])) { | |
8903cb82 | 951 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
a0d0e21e | 952 | if ((int)strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE, SVt_PV)) |
79072805 LW |
953 | weight -= 100; |
954 | else | |
955 | weight -= 10; | |
956 | } | |
957 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
958 | strchr("[#!%*<>()-=",s[1])) { |
959 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
960 | weight -= 10; |
961 | else | |
962 | weight -= 1; | |
963 | } | |
964 | break; | |
965 | case '\\': | |
966 | un_char = 254; | |
967 | if (s[1]) { | |
93a17b20 | 968 | if (strchr("wds]",s[1])) |
79072805 LW |
969 | weight += 100; |
970 | else if (seen['\''] || seen['"']) | |
971 | weight += 1; | |
93a17b20 | 972 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
973 | weight += 40; |
974 | else if (isDIGIT(s[1])) { | |
975 | weight += 40; | |
976 | while (s[1] && isDIGIT(s[1])) | |
977 | s++; | |
978 | } | |
979 | } | |
980 | else | |
981 | weight += 100; | |
982 | break; | |
983 | case '-': | |
984 | if (s[1] == '\\') | |
985 | weight += 50; | |
93a17b20 | 986 | if (strchr("aA01! ",last_un_char)) |
79072805 | 987 | weight += 30; |
93a17b20 | 988 | if (strchr("zZ79~",s[1])) |
79072805 LW |
989 | weight += 30; |
990 | break; | |
991 | default: | |
93a17b20 | 992 | if (!isALNUM(last_un_char) && !strchr("$@&",last_un_char) && |
79072805 LW |
993 | isALPHA(*s) && s[1] && isALPHA(s[1])) { |
994 | char *d = tmpbuf; | |
995 | while (isALPHA(*s)) | |
996 | *d++ = *s++; | |
997 | *d = '\0'; | |
998 | if (keyword(tmpbuf, d - tmpbuf)) | |
999 | weight -= 150; | |
1000 | } | |
1001 | if (un_char == last_un_char + 1) | |
1002 | weight += 5; | |
1003 | weight -= seen[un_char]; | |
1004 | break; | |
1005 | } | |
1006 | seen[un_char]++; | |
1007 | } | |
1008 | if (weight >= 0) /* probably a character class */ | |
1009 | return FALSE; | |
1010 | } | |
1011 | ||
1012 | return TRUE; | |
1013 | } | |
ffed7fef | 1014 | |
a0d0e21e LW |
1015 | static int |
1016 | intuit_method(start,gv) | |
1017 | char *start; | |
1018 | GV *gv; | |
1019 | { | |
1020 | char *s = start + (*start == '$'); | |
8903cb82 | 1021 | char tmpbuf[sizeof tokenbuf]; |
a0d0e21e LW |
1022 | STRLEN len; |
1023 | GV* indirgv; | |
1024 | ||
1025 | if (gv) { | |
1026 | if (GvIO(gv)) | |
1027 | return 0; | |
8ebc5c01 | 1028 | if (!GvCVu(gv)) |
a0d0e21e LW |
1029 | gv = 0; |
1030 | } | |
8903cb82 | 1031 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
a0d0e21e LW |
1032 | if (*start == '$') { |
1033 | if (gv || last_lop_op == OP_PRINT || isUPPER(*tokenbuf)) | |
1034 | return 0; | |
1035 | s = skipspace(s); | |
1036 | bufptr = start; | |
1037 | expect = XREF; | |
1038 | return *s == '(' ? FUNCMETH : METHOD; | |
1039 | } | |
1040 | if (!keyword(tmpbuf, len)) { | |
1041 | indirgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVCV); | |
8ebc5c01 | 1042 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
1043 | return 0; |
1044 | /* filehandle or package name makes it a method */ | |
89bfa8cd | 1045 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) { |
a0d0e21e | 1046 | s = skipspace(s); |
55497cff | 1047 | if ((bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
1048 | return 0; /* no assumptions -- "=>" quotes bearword */ | |
a0d0e21e LW |
1049 | nextval[nexttoke].opval = |
1050 | (OP*)newSVOP(OP_CONST, 0, | |
1051 | newSVpv(tmpbuf,0)); | |
1052 | nextval[nexttoke].opval->op_private = | |
1053 | OPpCONST_BARE; | |
1054 | expect = XTERM; | |
1055 | force_next(WORD); | |
1056 | bufptr = s; | |
1057 | return *s == '(' ? FUNCMETH : METHOD; | |
1058 | } | |
1059 | } | |
1060 | return 0; | |
1061 | } | |
1062 | ||
1063 | static char* | |
1064 | incl_perldb() | |
1065 | { | |
1066 | if (perldb) { | |
1067 | char *pdb = getenv("PERL5DB"); | |
1068 | ||
1069 | if (pdb) | |
1070 | return pdb; | |
1071 | return "BEGIN { require 'perl5db.pl' }"; | |
1072 | } | |
1073 | return ""; | |
1074 | } | |
1075 | ||
1076 | ||
16d20bd9 AD |
1077 | /* Encoded script support. filter_add() effectively inserts a |
1078 | * 'pre-processing' function into the current source input stream. | |
1079 | * Note that the filter function only applies to the current source file | |
1080 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
1081 | * | |
1082 | * The datasv parameter (which may be NULL) can be used to pass | |
1083 | * private data to this instance of the filter. The filter function | |
1084 | * can recover the SV using the FILTER_DATA macro and use it to | |
1085 | * store private buffers and state information. | |
1086 | * | |
1087 | * The supplied datasv parameter is upgraded to a PVIO type | |
1088 | * and the IoDIRP field is used to store the function pointer. | |
1089 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for | |
1090 | * private use must be set using malloc'd pointers. | |
1091 | */ | |
1092 | static int filter_debug = 0; | |
1093 | ||
1094 | SV * | |
1095 | filter_add(funcp, datasv) | |
1096 | filter_t funcp; | |
1097 | SV *datasv; | |
1098 | { | |
1099 | if (!funcp){ /* temporary handy debugging hack to be deleted */ | |
1100 | filter_debug = atoi((char*)datasv); | |
1101 | return NULL; | |
1102 | } | |
1103 | if (!rsfp_filters) | |
1104 | rsfp_filters = newAV(); | |
1105 | if (!datasv) | |
1106 | datasv = newSV(0); | |
1107 | if (!SvUPGRADE(datasv, SVt_PVIO)) | |
1108 | die("Can't upgrade filter_add data to SVt_PVIO"); | |
1109 | IoDIRP(datasv) = (DIR*)funcp; /* stash funcp into spare field */ | |
1110 | if (filter_debug) | |
ff0cee69 | 1111 | warn("filter_add func %p (%s)", funcp, SvPV(datasv,na)); |
e50aee73 AD |
1112 | av_unshift(rsfp_filters, 1); |
1113 | av_store(rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
1114 | return(datasv); |
1115 | } | |
1116 | ||
1117 | ||
1118 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 1119 | void |
16d20bd9 AD |
1120 | filter_del(funcp) |
1121 | filter_t funcp; | |
1122 | { | |
1123 | if (filter_debug) | |
ff0cee69 | 1124 | warn("filter_del func %p", funcp); |
16d20bd9 AD |
1125 | if (!rsfp_filters || AvFILL(rsfp_filters)<0) |
1126 | return; | |
1127 | /* if filter is on top of stack (usual case) just pop it off */ | |
e50aee73 AD |
1128 | if (IoDIRP(FILTER_DATA(0)) == (void*)funcp){ |
1129 | /* sv_free(av_pop(rsfp_filters)); */ | |
1130 | sv_free(av_shift(rsfp_filters)); | |
1131 | ||
16d20bd9 AD |
1132 | return; |
1133 | } | |
1134 | /* we need to search for the correct entry and clear it */ | |
1135 | die("filter_del can only delete in reverse order (currently)"); | |
1136 | } | |
1137 | ||
1138 | ||
1139 | /* Invoke the n'th filter function for the current rsfp. */ | |
1140 | I32 | |
1141 | filter_read(idx, buf_sv, maxlen) | |
1142 | int idx; | |
1143 | SV *buf_sv; | |
1144 | int maxlen; /* 0 = read one text line */ | |
a0d0e21e | 1145 | { |
16d20bd9 AD |
1146 | filter_t funcp; |
1147 | SV *datasv = NULL; | |
e50aee73 | 1148 | |
16d20bd9 AD |
1149 | if (!rsfp_filters) |
1150 | return -1; | |
1151 | if (idx > AvFILL(rsfp_filters)){ /* Any more filters? */ | |
1152 | /* Provide a default input filter to make life easy. */ | |
1153 | /* Note that we append to the line. This is handy. */ | |
16d20bd9 AD |
1154 | if (filter_debug) |
1155 | warn("filter_read %d: from rsfp\n", idx); | |
1156 | if (maxlen) { | |
1157 | /* Want a block */ | |
1158 | int len ; | |
1159 | int old_len = SvCUR(buf_sv) ; | |
1160 | ||
1161 | /* ensure buf_sv is large enough */ | |
1162 | SvGROW(buf_sv, old_len + maxlen) ; | |
760ac839 LW |
1163 | if ((len = PerlIO_read(rsfp, SvPVX(buf_sv) + old_len, maxlen)) <= 0){ |
1164 | if (PerlIO_error(rsfp)) | |
37120919 AD |
1165 | return -1; /* error */ |
1166 | else | |
1167 | return 0 ; /* end of file */ | |
1168 | } | |
16d20bd9 AD |
1169 | SvCUR_set(buf_sv, old_len + len) ; |
1170 | } else { | |
1171 | /* Want a line */ | |
37120919 | 1172 | if (sv_gets(buf_sv, rsfp, SvCUR(buf_sv)) == NULL) { |
760ac839 | 1173 | if (PerlIO_error(rsfp)) |
37120919 AD |
1174 | return -1; /* error */ |
1175 | else | |
1176 | return 0 ; /* end of file */ | |
1177 | } | |
16d20bd9 AD |
1178 | } |
1179 | return SvCUR(buf_sv); | |
1180 | } | |
1181 | /* Skip this filter slot if filter has been deleted */ | |
1182 | if ( (datasv = FILTER_DATA(idx)) == &sv_undef){ | |
1183 | if (filter_debug) | |
1184 | warn("filter_read %d: skipped (filter deleted)\n", idx); | |
1185 | return FILTER_READ(idx+1, buf_sv, maxlen); /* recurse */ | |
1186 | } | |
1187 | /* Get function pointer hidden within datasv */ | |
1188 | funcp = (filter_t)IoDIRP(datasv); | |
1189 | if (filter_debug) | |
ff0cee69 | 1190 | warn("filter_read %d: via function %p (%s)\n", |
16d20bd9 AD |
1191 | idx, funcp, SvPV(datasv,na)); |
1192 | /* Call function. The function is expected to */ | |
1193 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 1194 | /* Return: <0:error, =0:eof, >0:not eof */ |
16d20bd9 AD |
1195 | return (*funcp)(idx, buf_sv, maxlen); |
1196 | } | |
1197 | ||
1198 | static char * | |
fd049845 | 1199 | filter_gets(sv,fp, append) |
16d20bd9 | 1200 | register SV *sv; |
760ac839 | 1201 | register PerlIO *fp; |
fd049845 | 1202 | STRLEN append; |
16d20bd9 AD |
1203 | { |
1204 | if (rsfp_filters) { | |
1205 | ||
55497cff | 1206 | if (!append) |
1207 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
1208 | if (FILTER_READ(0, sv, 0) > 0) |
1209 | return ( SvPVX(sv) ) ; | |
1210 | else | |
1211 | return Nullch ; | |
1212 | } | |
1213 | else | |
fd049845 | 1214 | return (sv_gets(sv, fp, append)); |
16d20bd9 | 1215 | |
a0d0e21e LW |
1216 | } |
1217 | ||
1218 | ||
748a9306 LW |
1219 | #ifdef DEBUGGING |
1220 | static char* exp_name[] = | |
a0d0e21e | 1221 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "TERMBLOCK" }; |
748a9306 | 1222 | #endif |
463ee0b2 | 1223 | |
71be2cbc | 1224 | EXT int yychar; /* last token */ |
463ee0b2 | 1225 | |
2f3197b3 | 1226 | int |
378cc40b LW |
1227 | yylex() |
1228 | { | |
79072805 | 1229 | register char *s; |
378cc40b | 1230 | register char *d; |
79072805 | 1231 | register I32 tmp; |
463ee0b2 | 1232 | STRLEN len; |
a687059c | 1233 | |
bbce6d69 | 1234 | if (pending_ident) { |
1235 | char pit = pending_ident; | |
1236 | pending_ident = 0; | |
1237 | ||
1238 | if (in_my) { | |
1239 | if (strchr(tokenbuf,':')) | |
1240 | croak(no_myglob,tokenbuf); | |
1241 | yylval.opval = newOP(OP_PADANY, 0); | |
1242 | yylval.opval->op_targ = pad_allocmy(tokenbuf); | |
1243 | return PRIVATEREF; | |
1244 | } | |
1245 | ||
1246 | if (!strchr(tokenbuf,':') && (tmp = pad_findmy(tokenbuf))) { | |
1247 | if (last_lop_op == OP_SORT && | |
1248 | tokenbuf[0] == '$' && | |
1249 | (tokenbuf[1] == 'a' || tokenbuf[1] == 'b') | |
1250 | && !tokenbuf[2]) | |
1251 | { | |
1252 | for (d = in_eval ? oldoldbufptr : linestart; | |
1253 | d < bufend && *d != '\n'; | |
1254 | d++) | |
1255 | { | |
1256 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
1257 | croak("Can't use \"my %s\" in sort comparison", | |
1258 | tokenbuf); | |
1259 | } | |
1260 | } | |
1261 | } | |
1262 | ||
1263 | yylval.opval = newOP(OP_PADANY, 0); | |
1264 | yylval.opval->op_targ = tmp; | |
1265 | return PRIVATEREF; | |
1266 | } | |
1267 | ||
1268 | /* Force them to make up their mind on "@foo". */ | |
1269 | if (pit == '@' && lex_state != LEX_NORMAL && !lex_brackets) { | |
1270 | GV *gv = gv_fetchpv(tokenbuf+1, FALSE, SVt_PVAV); | |
46fc3d4c | 1271 | if (!gv || ((tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
1272 | yyerror(form("In string, %s now must be written as \\%s", | |
1273 | tokenbuf, tokenbuf)); | |
bbce6d69 | 1274 | } |
1275 | ||
1276 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf+1, 0)); | |
1277 | yylval.opval->op_private = OPpCONST_ENTERED; | |
1278 | gv_fetchpv(tokenbuf+1, in_eval ? GV_ADDMULTI : TRUE, | |
1279 | ((tokenbuf[0] == '$') ? SVt_PV | |
1280 | : (tokenbuf[0] == '@') ? SVt_PVAV | |
1281 | : SVt_PVHV)); | |
1282 | return WORD; | |
1283 | } | |
1284 | ||
79072805 LW |
1285 | switch (lex_state) { |
1286 | #ifdef COMMENTARY | |
1287 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
1288 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
1289 | break; | |
1290 | #endif | |
1291 | ||
1292 | case LEX_KNOWNEXT: | |
1293 | nexttoke--; | |
1294 | yylval = nextval[nexttoke]; | |
463ee0b2 | 1295 | if (!nexttoke) { |
79072805 | 1296 | lex_state = lex_defer; |
463ee0b2 | 1297 | expect = lex_expect; |
a0d0e21e | 1298 | lex_defer = LEX_NORMAL; |
463ee0b2 | 1299 | } |
79072805 LW |
1300 | return(nexttype[nexttoke]); |
1301 | ||
1302 | case LEX_INTERPCASEMOD: | |
1303 | #ifdef DEBUGGING | |
1304 | if (bufptr != bufend && *bufptr != '\\') | |
463ee0b2 | 1305 | croak("panic: INTERPCASEMOD"); |
79072805 LW |
1306 | #endif |
1307 | if (bufptr == bufend || bufptr[1] == 'E') { | |
a0d0e21e | 1308 | char oldmod; |
79072805 | 1309 | if (lex_casemods) { |
a0d0e21e LW |
1310 | oldmod = lex_casestack[--lex_casemods]; |
1311 | lex_casestack[lex_casemods] = '\0'; | |
1312 | if (bufptr != bufend && strchr("LUQ", oldmod)) { | |
1313 | bufptr += 2; | |
1314 | lex_state = LEX_INTERPCONCAT; | |
1315 | } | |
79072805 LW |
1316 | return ')'; |
1317 | } | |
a0d0e21e LW |
1318 | if (bufptr != bufend) |
1319 | bufptr += 2; | |
1320 | lex_state = LEX_INTERPCONCAT; | |
79072805 LW |
1321 | return yylex(); |
1322 | } | |
1323 | else { | |
1324 | s = bufptr + 1; | |
1325 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
1326 | tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */ | |
a0d0e21e LW |
1327 | if (strchr("LU", *s) && |
1328 | (strchr(lex_casestack, 'L') || strchr(lex_casestack, 'U'))) | |
1329 | { | |
1330 | lex_casestack[--lex_casemods] = '\0'; | |
1331 | return ')'; | |
1332 | } | |
1333 | if (lex_casemods > 10) { | |
89bfa8cd | 1334 | char* newlb = Renew(lex_casestack, lex_casemods + 2, char); |
a0d0e21e LW |
1335 | if (newlb != lex_casestack) { |
1336 | SAVEFREEPV(newlb); | |
1337 | lex_casestack = newlb; | |
1338 | } | |
1339 | } | |
1340 | lex_casestack[lex_casemods++] = *s; | |
1341 | lex_casestack[lex_casemods] = '\0'; | |
79072805 LW |
1342 | lex_state = LEX_INTERPCONCAT; |
1343 | nextval[nexttoke].ival = 0; | |
1344 | force_next('('); | |
1345 | if (*s == 'l') | |
1346 | nextval[nexttoke].ival = OP_LCFIRST; | |
1347 | else if (*s == 'u') | |
1348 | nextval[nexttoke].ival = OP_UCFIRST; | |
1349 | else if (*s == 'L') | |
1350 | nextval[nexttoke].ival = OP_LC; | |
1351 | else if (*s == 'U') | |
1352 | nextval[nexttoke].ival = OP_UC; | |
a0d0e21e LW |
1353 | else if (*s == 'Q') |
1354 | nextval[nexttoke].ival = OP_QUOTEMETA; | |
79072805 | 1355 | else |
463ee0b2 | 1356 | croak("panic: yylex"); |
79072805 LW |
1357 | bufptr = s + 1; |
1358 | force_next(FUNC); | |
1359 | if (lex_starts) { | |
1360 | s = bufptr; | |
463ee0b2 | 1361 | lex_starts = 0; |
79072805 LW |
1362 | Aop(OP_CONCAT); |
1363 | } | |
1364 | else | |
1365 | return yylex(); | |
1366 | } | |
1367 | ||
55497cff | 1368 | case LEX_INTERPPUSH: |
1369 | return sublex_push(); | |
1370 | ||
79072805 LW |
1371 | case LEX_INTERPSTART: |
1372 | if (bufptr == bufend) | |
1373 | return sublex_done(); | |
1374 | expect = XTERM; | |
1375 | lex_dojoin = (*bufptr == '@'); | |
1376 | lex_state = LEX_INTERPNORMAL; | |
1377 | if (lex_dojoin) { | |
1378 | nextval[nexttoke].ival = 0; | |
1379 | force_next(','); | |
a0d0e21e | 1380 | force_ident("\"", '$'); |
79072805 LW |
1381 | nextval[nexttoke].ival = 0; |
1382 | force_next('$'); | |
1383 | nextval[nexttoke].ival = 0; | |
1384 | force_next('('); | |
1385 | nextval[nexttoke].ival = OP_JOIN; /* emulate join($", ...) */ | |
1386 | force_next(FUNC); | |
1387 | } | |
1388 | if (lex_starts++) { | |
1389 | s = bufptr; | |
1390 | Aop(OP_CONCAT); | |
1391 | } | |
68dc0745 | 1392 | return yylex(); |
79072805 LW |
1393 | |
1394 | case LEX_INTERPENDMAYBE: | |
1395 | if (intuit_more(bufptr)) { | |
1396 | lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
1397 | break; | |
1398 | } | |
1399 | /* FALL THROUGH */ | |
1400 | ||
1401 | case LEX_INTERPEND: | |
1402 | if (lex_dojoin) { | |
1403 | lex_dojoin = FALSE; | |
1404 | lex_state = LEX_INTERPCONCAT; | |
1405 | return ')'; | |
1406 | } | |
1407 | /* FALLTHROUGH */ | |
1408 | case LEX_INTERPCONCAT: | |
1409 | #ifdef DEBUGGING | |
1410 | if (lex_brackets) | |
463ee0b2 | 1411 | croak("panic: INTERPCONCAT"); |
79072805 LW |
1412 | #endif |
1413 | if (bufptr == bufend) | |
1414 | return sublex_done(); | |
1415 | ||
ed6116ce | 1416 | if (SvIVX(linestr) == '\'') { |
79072805 LW |
1417 | SV *sv = newSVsv(linestr); |
1418 | if (!lex_inpat) | |
1419 | sv = q(sv); | |
1420 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); | |
1421 | s = bufend; | |
1422 | } | |
1423 | else { | |
1424 | s = scan_const(bufptr); | |
1425 | if (*s == '\\') | |
1426 | lex_state = LEX_INTERPCASEMOD; | |
1427 | else | |
1428 | lex_state = LEX_INTERPSTART; | |
1429 | } | |
1430 | ||
1431 | if (s != bufptr) { | |
1432 | nextval[nexttoke] = yylval; | |
463ee0b2 | 1433 | expect = XTERM; |
79072805 LW |
1434 | force_next(THING); |
1435 | if (lex_starts++) | |
1436 | Aop(OP_CONCAT); | |
1437 | else { | |
1438 | bufptr = s; | |
1439 | return yylex(); | |
1440 | } | |
1441 | } | |
1442 | ||
1443 | return yylex(); | |
a0d0e21e LW |
1444 | case LEX_FORMLINE: |
1445 | lex_state = LEX_NORMAL; | |
1446 | s = scan_formline(bufptr); | |
1447 | if (!lex_formbrack) | |
1448 | goto rightbracket; | |
1449 | OPERATOR(';'); | |
79072805 LW |
1450 | } |
1451 | ||
1452 | s = bufptr; | |
a687059c LW |
1453 | oldoldbufptr = oldbufptr; |
1454 | oldbufptr = s; | |
79072805 | 1455 | DEBUG_p( { |
760ac839 | 1456 | PerlIO_printf(PerlIO_stderr(), "### Tokener expecting %s at %s\n", exp_name[expect], s); |
79072805 | 1457 | } ) |
463ee0b2 LW |
1458 | |
1459 | retry: | |
378cc40b LW |
1460 | switch (*s) { |
1461 | default: | |
54310121 | 1462 | croak("Unrecognized character \\%03o", *s & 255); |
e929a76b LW |
1463 | case 4: |
1464 | case 26: | |
1465 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 1466 | case 0: |
463ee0b2 | 1467 | if (!rsfp) { |
55497cff | 1468 | last_uni = 0; |
1469 | last_lop = 0; | |
463ee0b2 LW |
1470 | if (lex_brackets) |
1471 | yyerror("Missing right bracket"); | |
79072805 | 1472 | TOKEN(0); |
463ee0b2 | 1473 | } |
a687059c LW |
1474 | if (s++ < bufend) |
1475 | goto retry; /* ignore stray nulls */ | |
2f3197b3 | 1476 | last_uni = 0; |
79072805 | 1477 | last_lop = 0; |
a0d0e21e | 1478 | if (!in_eval && !preambled) { |
79072805 | 1479 | preambled = TRUE; |
a0d0e21e | 1480 | sv_setpv(linestr,incl_perldb()); |
91b7def8 | 1481 | if (SvCUR(linestr)) |
1482 | sv_catpv(linestr,";"); | |
1483 | if (preambleav){ | |
1484 | while(AvFILL(preambleav) >= 0) { | |
1485 | SV *tmpsv = av_shift(preambleav); | |
1486 | sv_catsv(linestr, tmpsv); | |
1487 | sv_catpv(linestr, ";"); | |
1488 | sv_free(tmpsv); | |
1489 | } | |
1490 | sv_free((SV*)preambleav); | |
1491 | preambleav = NULL; | |
1492 | } | |
79072805 LW |
1493 | if (minus_n || minus_p) { |
1494 | sv_catpv(linestr, "LINE: while (<>) {"); | |
1495 | if (minus_l) | |
a0d0e21e | 1496 | sv_catpv(linestr,"chomp;"); |
8fd239a7 CS |
1497 | if (minus_a) { |
1498 | GV* gv = gv_fetchpv("::F", TRUE, SVt_PVAV); | |
1499 | if (gv) | |
1500 | GvIMPORTED_AV_on(gv); | |
1501 | if (minus_F) { | |
54310121 | 1502 | if (strchr("/'\"", *splitstr) |
1503 | && strchr(splitstr + 1, *splitstr)) | |
46fc3d4c | 1504 | sv_catpvf(linestr, "@F=split(%s);", splitstr); |
54310121 | 1505 | else { |
1506 | char delim; | |
1507 | s = "'~#\200\1'"; /* surely one char is unused...*/ | |
1508 | while (s[1] && strchr(splitstr, *s)) s++; | |
1509 | delim = *s; | |
46fc3d4c | 1510 | sv_catpvf(linestr, "@F=split(%s%c", |
1511 | "q" + (delim == '\''), delim); | |
1512 | for (s = splitstr; *s; s++) { | |
54310121 | 1513 | if (*s == '\\') |
46fc3d4c | 1514 | sv_catpvn(linestr, "\\", 1); |
1515 | sv_catpvn(linestr, s, 1); | |
54310121 | 1516 | } |
46fc3d4c | 1517 | sv_catpvf(linestr, "%c);", delim); |
54310121 | 1518 | } |
2304df62 AD |
1519 | } |
1520 | else | |
1521 | sv_catpv(linestr,"@F=split(' ');"); | |
1522 | } | |
79072805 | 1523 | } |
a0d0e21e | 1524 | sv_catpv(linestr, "\n"); |
fd049845 | 1525 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
463ee0b2 | 1526 | bufend = SvPVX(linestr) + SvCUR(linestr); |
a0d0e21e LW |
1527 | if (perldb && curstash != debstash) { |
1528 | SV *sv = NEWSV(85,0); | |
1529 | ||
1530 | sv_upgrade(sv, SVt_PVMG); | |
1531 | sv_setsv(sv,linestr); | |
1532 | av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv); | |
1533 | } | |
79072805 | 1534 | goto retry; |
a687059c | 1535 | } |
e929a76b | 1536 | do { |
fd049845 | 1537 | if ((s = filter_gets(linestr, rsfp, 0)) == Nullch) { |
e929a76b | 1538 | fake_eof: |
395c3793 | 1539 | if (rsfp) { |
a0d0e21e | 1540 | if (preprocess && !in_eval) |
79072805 | 1541 | (void)my_pclose(rsfp); |
760ac839 LW |
1542 | else if ((PerlIO *)rsfp == PerlIO_stdin()) |
1543 | PerlIO_clearerr(rsfp); | |
395c3793 | 1544 | else |
760ac839 | 1545 | (void)PerlIO_close(rsfp); |
395c3793 LW |
1546 | rsfp = Nullfp; |
1547 | } | |
a0d0e21e | 1548 | if (!in_eval && (minus_n || minus_p)) { |
79072805 LW |
1549 | sv_setpv(linestr,minus_p ? ";}continue{print" : ""); |
1550 | sv_catpv(linestr,";}"); | |
fd049845 | 1551 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
463ee0b2 | 1552 | bufend = SvPVX(linestr) + SvCUR(linestr); |
e929a76b LW |
1553 | minus_n = minus_p = 0; |
1554 | goto retry; | |
1555 | } | |
fd049845 | 1556 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
79072805 LW |
1557 | sv_setpv(linestr,""); |
1558 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ | |
378cc40b | 1559 | } |
a0d0e21e LW |
1560 | if (doextract) { |
1561 | if (*s == '#' && s[1] == '!' && instr(s,"perl")) | |
1562 | doextract = FALSE; | |
1563 | ||
1564 | /* Incest with pod. */ | |
1565 | if (*s == '=' && strnEQ(s, "=cut", 4)) { | |
1566 | sv_setpv(linestr, ""); | |
fd049845 | 1567 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
a0d0e21e LW |
1568 | bufend = SvPVX(linestr) + SvCUR(linestr); |
1569 | doextract = FALSE; | |
1570 | } | |
1571 | } | |
463ee0b2 | 1572 | incline(s); |
e929a76b | 1573 | } while (doextract); |
fd049845 | 1574 | oldoldbufptr = oldbufptr = bufptr = linestart = s; |
8990e307 | 1575 | if (perldb && curstash != debstash) { |
79072805 | 1576 | SV *sv = NEWSV(85,0); |
a687059c | 1577 | |
93a17b20 | 1578 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
1579 | sv_setsv(sv,linestr); |
1580 | av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv); | |
a687059c | 1581 | } |
463ee0b2 | 1582 | bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 LW |
1583 | if (curcop->cop_line == 1) { |
1584 | while (s < bufend && isSPACE(*s)) | |
1585 | s++; | |
a0d0e21e | 1586 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 1587 | s++; |
44a8e56a | 1588 | d = Nullch; |
1589 | if (!in_eval) { | |
1590 | if (*s == '#' && *(s+1) == '!') | |
1591 | d = s + 2; | |
1592 | #ifdef ALTERNATE_SHEBANG | |
1593 | else { | |
1594 | static char as[] = ALTERNATE_SHEBANG; | |
1595 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) | |
1596 | d = s + (sizeof(as) - 1); | |
1597 | } | |
1598 | #endif /* ALTERNATE_SHEBANG */ | |
1599 | } | |
1600 | if (d) { | |
b8378b72 | 1601 | char *ipath; |
774d564b | 1602 | char *ipathend; |
b8378b72 | 1603 | |
774d564b | 1604 | while (isSPACE(*d)) |
b8378b72 CS |
1605 | d++; |
1606 | ipath = d; | |
774d564b | 1607 | while (*d && !isSPACE(*d)) |
1608 | d++; | |
1609 | ipathend = d; | |
1610 | ||
1611 | #ifdef ARG_ZERO_IS_SCRIPT | |
1612 | if (ipathend > ipath) { | |
1613 | /* | |
1614 | * HP-UX (at least) sets argv[0] to the script name, | |
1615 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
1616 | * at least, set argv[0] to the basename of the Perl | |
1617 | * interpreter. So, having found "#!", we'll set it right. | |
1618 | */ | |
1619 | SV *x = GvSV(gv_fetchpv("\030", TRUE, SVt_PV)); | |
1620 | assert(SvPOK(x) || SvGMAGICAL(x)); | |
9607fc9c | 1621 | if (sv_eq(x, GvSV(curcop->cop_filegv))) { |
774d564b | 1622 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 1623 | SvSETMAGIC(x); |
1624 | } | |
774d564b | 1625 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 1626 | } |
774d564b | 1627 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
1628 | |
1629 | /* | |
1630 | * Look for options. | |
1631 | */ | |
748a9306 LW |
1632 | d = instr(s,"perl -"); |
1633 | if (!d) | |
1634 | d = instr(s,"perl"); | |
44a8e56a | 1635 | #ifdef ALTERNATE_SHEBANG |
1636 | /* | |
1637 | * If the ALTERNATE_SHEBANG on this system starts with a | |
1638 | * character that can be part of a Perl expression, then if | |
1639 | * we see it but not "perl", we're probably looking at the | |
1640 | * start of Perl code, not a request to hand off to some | |
1641 | * other interpreter. Similarly, if "perl" is there, but | |
1642 | * not in the first 'word' of the line, we assume the line | |
1643 | * contains the start of the Perl program. | |
44a8e56a | 1644 | */ |
1645 | if (d && *s != '#') { | |
774d564b | 1646 | char *c = ipath; |
44a8e56a | 1647 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
1648 | c++; | |
1649 | if (c < d) | |
1650 | d = Nullch; /* "perl" not in first word; ignore */ | |
1651 | else | |
1652 | *s = '#'; /* Don't try to parse shebang line */ | |
1653 | } | |
774d564b | 1654 | #endif /* ALTERNATE_SHEBANG */ |
748a9306 | 1655 | if (!d && |
44a8e56a | 1656 | *s == '#' && |
774d564b | 1657 | ipathend > ipath && |
748a9306 LW |
1658 | !minus_c && |
1659 | !instr(s,"indir") && | |
1660 | instr(origargv[0],"perl")) | |
1661 | { | |
9f68db38 | 1662 | char **newargv; |
9f68db38 | 1663 | |
774d564b | 1664 | *ipathend = '\0'; |
1665 | s = ipathend + 1; | |
de3bb511 | 1666 | while (s < bufend && isSPACE(*s)) |
9f68db38 LW |
1667 | s++; |
1668 | if (s < bufend) { | |
1669 | Newz(899,newargv,origargc+3,char*); | |
1670 | newargv[1] = s; | |
de3bb511 | 1671 | while (s < bufend && !isSPACE(*s)) |
9f68db38 LW |
1672 | s++; |
1673 | *s = '\0'; | |
1674 | Copy(origargv+1, newargv+2, origargc+1, char*); | |
1675 | } | |
1676 | else | |
1677 | newargv = origargv; | |
774d564b | 1678 | newargv[0] = ipath; |
1679 | execv(ipath, newargv); | |
1680 | croak("Can't exec %s", ipath); | |
9f68db38 | 1681 | } |
748a9306 | 1682 | if (d) { |
ba6d6ac9 CS |
1683 | U32 oldpdb = perldb; |
1684 | bool oldn = minus_n; | |
1685 | bool oldp = minus_p; | |
748a9306 LW |
1686 | |
1687 | while (*d && !isSPACE(*d)) d++; | |
89bfa8cd | 1688 | while (*d == ' ' || *d == '\t') d++; |
748a9306 LW |
1689 | |
1690 | if (*d++ == '-') { | |
8cc95fdb | 1691 | do { |
1692 | if (*d == 'M' || *d == 'm') { | |
1693 | char *m = d; | |
1694 | while (*d && !isSPACE(*d)) d++; | |
1695 | croak("Too late for \"-%.*s\" option", | |
1696 | (int)(d - m), m); | |
1697 | } | |
1698 | d = moreswitches(d); | |
1699 | } while (d); | |
748a9306 | 1700 | if (perldb && !oldpdb || |
b084f20b | 1701 | ( minus_n || minus_p ) && !(oldn || oldp) ) |
1702 | /* if we have already added "LINE: while (<>) {", | |
1703 | we must not do it again */ | |
748a9306 LW |
1704 | { |
1705 | sv_setpv(linestr, ""); | |
fd049845 | 1706 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
748a9306 LW |
1707 | bufend = SvPVX(linestr) + SvCUR(linestr); |
1708 | preambled = FALSE; | |
1709 | if (perldb) | |
1710 | (void)gv_fetchfile(origfilename); | |
1711 | goto retry; | |
1712 | } | |
a0d0e21e | 1713 | } |
79072805 | 1714 | } |
9f68db38 | 1715 | } |
79072805 | 1716 | } |
85e6fe83 | 1717 | if (lex_formbrack && lex_brackets <= lex_formbrack) { |
a0d0e21e LW |
1718 | bufptr = s; |
1719 | lex_state = LEX_FORMLINE; | |
1720 | return yylex(); | |
ae986130 | 1721 | } |
378cc40b | 1722 | goto retry; |
4fdae800 | 1723 | case '\r': |
54310121 | 1724 | warn("Illegal character \\%03o (carriage return)", '\r'); |
1725 | croak( | |
1726 | "(Maybe you didn't strip carriage returns after a network transfer?)\n"); | |
4fdae800 | 1727 | case ' ': case '\t': case '\f': case 013: |
378cc40b LW |
1728 | s++; |
1729 | goto retry; | |
378cc40b | 1730 | case '#': |
e929a76b | 1731 | case '\n': |
79072805 | 1732 | if (lex_state != LEX_NORMAL || (in_eval && !rsfp)) { |
a687059c LW |
1733 | d = bufend; |
1734 | while (s < d && *s != '\n') | |
378cc40b | 1735 | s++; |
0f85fab0 | 1736 | if (s < d) |
378cc40b | 1737 | s++; |
463ee0b2 | 1738 | incline(s); |
85e6fe83 | 1739 | if (lex_formbrack && lex_brackets <= lex_formbrack) { |
a0d0e21e LW |
1740 | bufptr = s; |
1741 | lex_state = LEX_FORMLINE; | |
1742 | return yylex(); | |
a687059c | 1743 | } |
378cc40b | 1744 | } |
a687059c | 1745 | else { |
378cc40b | 1746 | *s = '\0'; |
a687059c LW |
1747 | bufend = s; |
1748 | } | |
378cc40b LW |
1749 | goto retry; |
1750 | case '-': | |
79072805 | 1751 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
378cc40b | 1752 | s++; |
748a9306 LW |
1753 | bufptr = s; |
1754 | tmp = *s++; | |
1755 | ||
1756 | while (s < bufend && (*s == ' ' || *s == '\t')) | |
1757 | s++; | |
1758 | ||
1759 | if (strnEQ(s,"=>",2)) { | |
1760 | if (dowarn) | |
1761 | warn("Ambiguous use of -%c => resolved to \"-%c\" =>", | |
ff0cee69 | 1762 | (int)tmp, (int)tmp); |
748a9306 LW |
1763 | s = force_word(bufptr,WORD,FALSE,FALSE,FALSE); |
1764 | OPERATOR('-'); /* unary minus */ | |
1765 | } | |
e334a159 | 1766 | last_uni = oldbufptr; |
a0d0e21e | 1767 | last_lop_op = OP_FTEREAD; /* good enough */ |
748a9306 | 1768 | switch (tmp) { |
79072805 LW |
1769 | case 'r': FTST(OP_FTEREAD); |
1770 | case 'w': FTST(OP_FTEWRITE); | |
1771 | case 'x': FTST(OP_FTEEXEC); | |
1772 | case 'o': FTST(OP_FTEOWNED); | |
1773 | case 'R': FTST(OP_FTRREAD); | |
1774 | case 'W': FTST(OP_FTRWRITE); | |
1775 | case 'X': FTST(OP_FTREXEC); | |
1776 | case 'O': FTST(OP_FTROWNED); | |
1777 | case 'e': FTST(OP_FTIS); | |
1778 | case 'z': FTST(OP_FTZERO); | |
1779 | case 's': FTST(OP_FTSIZE); | |
1780 | case 'f': FTST(OP_FTFILE); | |
1781 | case 'd': FTST(OP_FTDIR); | |
1782 | case 'l': FTST(OP_FTLINK); | |
1783 | case 'p': FTST(OP_FTPIPE); | |
1784 | case 'S': FTST(OP_FTSOCK); | |
1785 | case 'u': FTST(OP_FTSUID); | |
1786 | case 'g': FTST(OP_FTSGID); | |
1787 | case 'k': FTST(OP_FTSVTX); | |
1788 | case 'b': FTST(OP_FTBLK); | |
1789 | case 'c': FTST(OP_FTCHR); | |
1790 | case 't': FTST(OP_FTTTY); | |
1791 | case 'T': FTST(OP_FTTEXT); | |
1792 | case 'B': FTST(OP_FTBINARY); | |
85e6fe83 LW |
1793 | case 'M': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTMTIME); |
1794 | case 'A': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTATIME); | |
1795 | case 'C': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTCTIME); | |
378cc40b | 1796 | default: |
ff0cee69 | 1797 | croak("Unrecognized file test: -%c", (int)tmp); |
378cc40b LW |
1798 | break; |
1799 | } | |
1800 | } | |
a687059c LW |
1801 | tmp = *s++; |
1802 | if (*s == tmp) { | |
1803 | s++; | |
79072805 LW |
1804 | if (expect == XOPERATOR) |
1805 | TERM(POSTDEC); | |
1806 | else | |
1807 | OPERATOR(PREDEC); | |
1808 | } | |
1809 | else if (*s == '>') { | |
1810 | s++; | |
1811 | s = skipspace(s); | |
1812 | if (isIDFIRST(*s)) { | |
a0d0e21e | 1813 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); |
463ee0b2 | 1814 | TOKEN(ARROW); |
79072805 | 1815 | } |
748a9306 LW |
1816 | else if (*s == '$') |
1817 | OPERATOR(ARROW); | |
463ee0b2 | 1818 | else |
748a9306 | 1819 | TERM(ARROW); |
a687059c | 1820 | } |
79072805 LW |
1821 | if (expect == XOPERATOR) |
1822 | Aop(OP_SUBTRACT); | |
1823 | else { | |
2f3197b3 LW |
1824 | if (isSPACE(*s) || !isSPACE(*bufptr)) |
1825 | check_uni(); | |
79072805 | 1826 | OPERATOR('-'); /* unary minus */ |
2f3197b3 | 1827 | } |
79072805 | 1828 | |
378cc40b | 1829 | case '+': |
a687059c LW |
1830 | tmp = *s++; |
1831 | if (*s == tmp) { | |
378cc40b | 1832 | s++; |
79072805 LW |
1833 | if (expect == XOPERATOR) |
1834 | TERM(POSTINC); | |
1835 | else | |
1836 | OPERATOR(PREINC); | |
378cc40b | 1837 | } |
79072805 LW |
1838 | if (expect == XOPERATOR) |
1839 | Aop(OP_ADD); | |
1840 | else { | |
2f3197b3 LW |
1841 | if (isSPACE(*s) || !isSPACE(*bufptr)) |
1842 | check_uni(); | |
a687059c | 1843 | OPERATOR('+'); |
2f3197b3 | 1844 | } |
a687059c | 1845 | |
378cc40b | 1846 | case '*': |
79072805 | 1847 | if (expect != XOPERATOR) { |
8903cb82 | 1848 | s = scan_ident(s, bufend, tokenbuf, sizeof tokenbuf, TRUE); |
463ee0b2 | 1849 | expect = XOPERATOR; |
a0d0e21e LW |
1850 | force_ident(tokenbuf, '*'); |
1851 | if (!*tokenbuf) | |
1852 | PREREF('*'); | |
79072805 | 1853 | TERM('*'); |
a687059c | 1854 | } |
79072805 LW |
1855 | s++; |
1856 | if (*s == '*') { | |
a687059c | 1857 | s++; |
79072805 | 1858 | PWop(OP_POW); |
a687059c | 1859 | } |
79072805 LW |
1860 | Mop(OP_MULTIPLY); |
1861 | ||
378cc40b | 1862 | case '%': |
bbce6d69 | 1863 | if (expect == XOPERATOR) { |
1864 | ++s; | |
1865 | Mop(OP_MODULO); | |
a687059c | 1866 | } |
bbce6d69 | 1867 | tokenbuf[0] = '%'; |
8903cb82 | 1868 | s = scan_ident(s, bufend, tokenbuf + 1, sizeof tokenbuf - 1, TRUE); |
bbce6d69 | 1869 | if (!tokenbuf[1]) { |
1870 | if (s == bufend) | |
1871 | yyerror("Final % should be \\% or %name"); | |
1872 | PREREF('%'); | |
1873 | } | |
1874 | pending_ident = '%'; | |
1875 | TERM('%'); | |
a687059c | 1876 | |
378cc40b | 1877 | case '^': |
79072805 | 1878 | s++; |
a0d0e21e | 1879 | BOop(OP_BIT_XOR); |
79072805 LW |
1880 | case '[': |
1881 | lex_brackets++; | |
1882 | /* FALL THROUGH */ | |
378cc40b | 1883 | case '~': |
378cc40b | 1884 | case ',': |
378cc40b LW |
1885 | tmp = *s++; |
1886 | OPERATOR(tmp); | |
a0d0e21e LW |
1887 | case ':': |
1888 | if (s[1] == ':') { | |
1889 | len = 0; | |
1890 | goto just_a_word; | |
1891 | } | |
1892 | s++; | |
1893 | OPERATOR(':'); | |
8990e307 LW |
1894 | case '(': |
1895 | s++; | |
a0d0e21e | 1896 | if (last_lop == oldoldbufptr || last_uni == oldoldbufptr) |
8990e307 | 1897 | oldbufptr = oldoldbufptr; /* allow print(STDOUT 123) */ |
a0d0e21e LW |
1898 | else |
1899 | expect = XTERM; | |
1900 | TOKEN('('); | |
378cc40b | 1901 | case ';': |
79072805 LW |
1902 | if (curcop->cop_line < copline) |
1903 | copline = curcop->cop_line; | |
378cc40b LW |
1904 | tmp = *s++; |
1905 | OPERATOR(tmp); | |
1906 | case ')': | |
378cc40b | 1907 | tmp = *s++; |
16d20bd9 AD |
1908 | s = skipspace(s); |
1909 | if (*s == '{') | |
1910 | PREBLOCK(tmp); | |
378cc40b | 1911 | TERM(tmp); |
79072805 LW |
1912 | case ']': |
1913 | s++; | |
463ee0b2 LW |
1914 | if (lex_brackets <= 0) |
1915 | yyerror("Unmatched right bracket"); | |
1916 | else | |
1917 | --lex_brackets; | |
79072805 | 1918 | if (lex_state == LEX_INTERPNORMAL) { |
463ee0b2 | 1919 | if (lex_brackets == 0) { |
a0d0e21e | 1920 | if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>')) |
79072805 LW |
1921 | lex_state = LEX_INTERPEND; |
1922 | } | |
1923 | } | |
4633a7c4 | 1924 | TERM(']'); |
79072805 LW |
1925 | case '{': |
1926 | leftbracket: | |
79072805 | 1927 | s++; |
8990e307 | 1928 | if (lex_brackets > 100) { |
89bfa8cd | 1929 | char* newlb = Renew(lex_brackstack, lex_brackets + 1, char); |
8990e307 LW |
1930 | if (newlb != lex_brackstack) { |
1931 | SAVEFREEPV(newlb); | |
1932 | lex_brackstack = newlb; | |
1933 | } | |
1934 | } | |
a0d0e21e LW |
1935 | switch (expect) { |
1936 | case XTERM: | |
1937 | if (lex_formbrack) { | |
1938 | s--; | |
1939 | PRETERMBLOCK(DO); | |
1940 | } | |
1941 | if (oldoldbufptr == last_lop) | |
1942 | lex_brackstack[lex_brackets++] = XTERM; | |
1943 | else | |
1944 | lex_brackstack[lex_brackets++] = XOPERATOR; | |
79072805 | 1945 | OPERATOR(HASHBRACK); |
a0d0e21e | 1946 | case XOPERATOR: |
748a9306 LW |
1947 | while (s < bufend && (*s == ' ' || *s == '\t')) |
1948 | s++; | |
44a8e56a | 1949 | d = s; |
1950 | tokenbuf[0] = '\0'; | |
1951 | if (d < bufend && *d == '-') { | |
1952 | tokenbuf[0] = '-'; | |
1953 | d++; | |
1954 | while (d < bufend && (*d == ' ' || *d == '\t')) | |
1955 | d++; | |
1956 | } | |
1957 | if (d < bufend && isIDFIRST(*d)) { | |
8903cb82 | 1958 | d = scan_word(d, tokenbuf + 1, sizeof tokenbuf - 1, |
1959 | FALSE, &len); | |
748a9306 LW |
1960 | while (d < bufend && (*d == ' ' || *d == '\t')) |
1961 | d++; | |
1962 | if (*d == '}') { | |
44a8e56a | 1963 | char minus = (tokenbuf[0] == '-'); |
748a9306 | 1964 | if (dowarn && |
44a8e56a | 1965 | (keyword(tokenbuf + 1, len) || |
1966 | (minus && len == 1 && isALPHA(tokenbuf[1])) || | |
1967 | perl_get_cv(tokenbuf + 1, FALSE) )) | |
748a9306 | 1968 | warn("Ambiguous use of {%s} resolved to {\"%s\"}", |
44a8e56a | 1969 | tokenbuf + !minus, tokenbuf + !minus); |
1970 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); | |
1971 | if (minus) | |
1972 | force_next('-'); | |
748a9306 LW |
1973 | } |
1974 | } | |
1975 | /* FALL THROUGH */ | |
1976 | case XBLOCK: | |
a0d0e21e | 1977 | lex_brackstack[lex_brackets++] = XSTATE; |
2304df62 | 1978 | expect = XSTATE; |
a0d0e21e LW |
1979 | break; |
1980 | case XTERMBLOCK: | |
1981 | lex_brackstack[lex_brackets++] = XOPERATOR; | |
1982 | expect = XSTATE; | |
1983 | break; | |
1984 | default: { | |
1985 | char *t; | |
1986 | if (oldoldbufptr == last_lop) | |
1987 | lex_brackstack[lex_brackets++] = XTERM; | |
1988 | else | |
1989 | lex_brackstack[lex_brackets++] = XOPERATOR; | |
1990 | s = skipspace(s); | |
1991 | if (*s == '}') | |
1992 | OPERATOR(HASHBRACK); | |
b8a4b1be GS |
1993 | /* This hack serves to disambiguate a pair of curlies |
1994 | * as being a block or an anon hash. Normally, expectation | |
1995 | * determines that, but in cases where we're not in a | |
1996 | * position to expect anything in particular (like inside | |
1997 | * eval"") we have to resolve the ambiguity. This code | |
1998 | * covers the case where the first term in the curlies is a | |
1999 | * quoted string. Most other cases need to be explicitly | |
2000 | * disambiguated by prepending a `+' before the opening | |
2001 | * curly in order to force resolution as an anon hash. | |
2002 | * | |
2003 | * XXX should probably propagate the outer expectation | |
2004 | * into eval"" to rely less on this hack, but that could | |
2005 | * potentially break current behavior of eval"". | |
2006 | * GSAR 97-07-21 | |
2007 | */ | |
2008 | t = s; | |
2009 | if (*s == '\'' || *s == '"' || *s == '`') { | |
2010 | /* common case: get past first string, handling escapes */ | |
2011 | for (t++; t < bufend && *t != *s;) | |
2012 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) | |
2013 | t++; | |
2014 | t++; | |
2015 | } | |
2016 | else if (*s == 'q') { | |
2017 | if (++t < bufend | |
2018 | && (!isALNUM(*t) | |
2019 | || ((*t == 'q' || *t == 'x') && ++t < bufend | |
2020 | && !isALNUM(*t)))) { | |
2021 | char *tmps; | |
2022 | char open, close, term; | |
2023 | I32 brackets = 1; | |
2024 | ||
2025 | while (t < bufend && isSPACE(*t)) | |
2026 | t++; | |
2027 | term = *t; | |
2028 | open = term; | |
2029 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
2030 | term = tmps[5]; | |
2031 | close = term; | |
2032 | if (open == close) | |
2033 | for (t++; t < bufend; t++) { | |
2034 | if (*t == '\\' && t+1 < bufend && term != '\\') | |
2035 | t++; | |
2036 | else if (*t == term) | |
2037 | break; | |
2038 | } | |
2039 | else | |
2040 | for (t++; t < bufend; t++) { | |
2041 | if (*t == '\\' && t+1 < bufend && term != '\\') | |
2042 | t++; | |
2043 | else if (*t == term && --brackets <= 0) | |
2044 | break; | |
2045 | else if (*t == open) | |
2046 | brackets++; | |
2047 | } | |
2048 | } | |
2049 | t++; | |
a0d0e21e | 2050 | } |
b8a4b1be GS |
2051 | else if (isALPHA(*s)) { |
2052 | for (t++; t < bufend && isALNUM(*t); t++) ; | |
a0d0e21e | 2053 | } |
a0d0e21e LW |
2054 | while (t < bufend && isSPACE(*t)) |
2055 | t++; | |
b8a4b1be GS |
2056 | /* if comma follows first term, call it an anon hash */ |
2057 | /* XXX it could be a comma expression with loop modifiers */ | |
2058 | if (t < bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) | |
2059 | || (*t == '=' && t[1] == '>'))) | |
a0d0e21e LW |
2060 | OPERATOR(HASHBRACK); |
2061 | if (expect == XREF) | |
2062 | expect = XTERM; | |
2063 | else { | |
2064 | lex_brackstack[lex_brackets-1] = XSTATE; | |
2065 | expect = XSTATE; | |
2066 | } | |
8990e307 | 2067 | } |
a0d0e21e | 2068 | break; |
463ee0b2 | 2069 | } |
79072805 LW |
2070 | yylval.ival = curcop->cop_line; |
2071 | if (isSPACE(*s) || *s == '#') | |
2072 | copline = NOLINE; /* invalidate current command line number */ | |
79072805 | 2073 | TOKEN('{'); |
378cc40b | 2074 | case '}': |
79072805 LW |
2075 | rightbracket: |
2076 | s++; | |
463ee0b2 LW |
2077 | if (lex_brackets <= 0) |
2078 | yyerror("Unmatched right bracket"); | |
2079 | else | |
2080 | expect = (expectation)lex_brackstack[--lex_brackets]; | |
85e6fe83 LW |
2081 | if (lex_brackets < lex_formbrack) |
2082 | lex_formbrack = 0; | |
79072805 | 2083 | if (lex_state == LEX_INTERPNORMAL) { |
463ee0b2 | 2084 | if (lex_brackets == 0) { |
79072805 LW |
2085 | if (lex_fakebrack) { |
2086 | lex_state = LEX_INTERPEND; | |
2087 | bufptr = s; | |
2088 | return yylex(); /* ignore fake brackets */ | |
2089 | } | |
fa83b5b6 | 2090 | if (*s == '-' && s[1] == '>') |
2091 | lex_state = LEX_INTERPENDMAYBE; | |
2092 | else if (*s != '[' && *s != '{') | |
79072805 LW |
2093 | lex_state = LEX_INTERPEND; |
2094 | } | |
2095 | } | |
748a9306 LW |
2096 | if (lex_brackets < lex_fakebrack) { |
2097 | bufptr = s; | |
2098 | lex_fakebrack = 0; | |
2099 | return yylex(); /* ignore fake brackets */ | |
2100 | } | |
79072805 LW |
2101 | force_next('}'); |
2102 | TOKEN(';'); | |
378cc40b LW |
2103 | case '&': |
2104 | s++; | |
2105 | tmp = *s++; | |
2106 | if (tmp == '&') | |
a0d0e21e | 2107 | AOPERATOR(ANDAND); |
378cc40b | 2108 | s--; |
463ee0b2 | 2109 | if (expect == XOPERATOR) { |
fd049845 | 2110 | if (dowarn && isALPHA(*s) && bufptr == linestart) { |
463ee0b2 LW |
2111 | curcop->cop_line--; |
2112 | warn(warn_nosemi); | |
2113 | curcop->cop_line++; | |
2114 | } | |
79072805 | 2115 | BAop(OP_BIT_AND); |
463ee0b2 | 2116 | } |
79072805 | 2117 | |
8903cb82 | 2118 | s = scan_ident(s - 1, bufend, tokenbuf, sizeof tokenbuf, TRUE); |
463ee0b2 LW |
2119 | if (*tokenbuf) { |
2120 | expect = XOPERATOR; | |
a0d0e21e | 2121 | force_ident(tokenbuf, '&'); |
463ee0b2 | 2122 | } |
79072805 LW |
2123 | else |
2124 | PREREF('&'); | |
c07a80fd | 2125 | yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
2126 | TERM('&'); |
2127 | ||
378cc40b LW |
2128 | case '|': |
2129 | s++; | |
2130 | tmp = *s++; | |
2131 | if (tmp == '|') | |
a0d0e21e | 2132 | AOPERATOR(OROR); |
378cc40b | 2133 | s--; |
79072805 | 2134 | BOop(OP_BIT_OR); |
378cc40b LW |
2135 | case '=': |
2136 | s++; | |
2137 | tmp = *s++; | |
2138 | if (tmp == '=') | |
79072805 LW |
2139 | Eop(OP_EQ); |
2140 | if (tmp == '>') | |
2141 | OPERATOR(','); | |
378cc40b | 2142 | if (tmp == '~') |
79072805 | 2143 | PMop(OP_MATCH); |
463ee0b2 | 2144 | if (dowarn && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp)) |
ff0cee69 | 2145 | warn("Reversed %c= operator",(int)tmp); |
378cc40b | 2146 | s--; |
748a9306 | 2147 | if (expect == XSTATE && isALPHA(tmp) && |
fd049845 | 2148 | (s == linestart+1 || s[-2] == '\n') ) |
748a9306 | 2149 | { |
a5f75d66 AD |
2150 | if (in_eval && !rsfp) { |
2151 | d = bufend; | |
2152 | while (s < d) { | |
2153 | if (*s++ == '\n') { | |
2154 | incline(s); | |
2155 | if (strnEQ(s,"=cut",4)) { | |
2156 | s = strchr(s,'\n'); | |
2157 | if (s) | |
2158 | s++; | |
2159 | else | |
2160 | s = d; | |
2161 | incline(s); | |
2162 | goto retry; | |
2163 | } | |
2164 | } | |
2165 | } | |
2166 | goto retry; | |
2167 | } | |
a0d0e21e LW |
2168 | s = bufend; |
2169 | doextract = TRUE; | |
2170 | goto retry; | |
2171 | } | |
2172 | if (lex_brackets < lex_formbrack) { | |
2173 | char *t; | |
2174 | for (t = s; *t == ' ' || *t == '\t'; t++) ; | |
2175 | if (*t == '\n' || *t == '#') { | |
2176 | s--; | |
2177 | expect = XBLOCK; | |
2178 | goto leftbracket; | |
2179 | } | |
79072805 | 2180 | } |
a0d0e21e LW |
2181 | yylval.ival = 0; |
2182 | OPERATOR(ASSIGNOP); | |
378cc40b LW |
2183 | case '!': |
2184 | s++; | |
2185 | tmp = *s++; | |
2186 | if (tmp == '=') | |
79072805 | 2187 | Eop(OP_NE); |
378cc40b | 2188 | if (tmp == '~') |
79072805 | 2189 | PMop(OP_NOT); |
378cc40b LW |
2190 | s--; |
2191 | OPERATOR('!'); | |
2192 | case '<': | |
79072805 | 2193 | if (expect != XOPERATOR) { |
93a17b20 | 2194 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 2195 | check_uni(); |
79072805 LW |
2196 | if (s[1] == '<') |
2197 | s = scan_heredoc(s); | |
2198 | else | |
2199 | s = scan_inputsymbol(s); | |
2200 | TERM(sublex_start()); | |
378cc40b LW |
2201 | } |
2202 | s++; | |
2203 | tmp = *s++; | |
2204 | if (tmp == '<') | |
79072805 | 2205 | SHop(OP_LEFT_SHIFT); |
395c3793 LW |
2206 | if (tmp == '=') { |
2207 | tmp = *s++; | |
2208 | if (tmp == '>') | |
79072805 | 2209 | Eop(OP_NCMP); |
395c3793 | 2210 | s--; |
79072805 | 2211 | Rop(OP_LE); |
395c3793 | 2212 | } |
378cc40b | 2213 | s--; |
79072805 | 2214 | Rop(OP_LT); |
378cc40b LW |
2215 | case '>': |
2216 | s++; | |
2217 | tmp = *s++; | |
2218 | if (tmp == '>') | |
79072805 | 2219 | SHop(OP_RIGHT_SHIFT); |
378cc40b | 2220 | if (tmp == '=') |
79072805 | 2221 | Rop(OP_GE); |
378cc40b | 2222 | s--; |
79072805 | 2223 | Rop(OP_GT); |
378cc40b LW |
2224 | |
2225 | case '$': | |
bbce6d69 | 2226 | CLINE; |
2227 | ||
2228 | if (expect == XOPERATOR) { | |
2229 | if (lex_formbrack && lex_brackets == lex_formbrack) { | |
2230 | expect = XTERM; | |
2231 | depcom(); | |
2232 | return ','; /* grandfather non-comma-format format */ | |
8990e307 | 2233 | } |
bbce6d69 | 2234 | } |
2235 | ||
2236 | if (s[1] == '#' && (isALPHA(s[2]) || strchr("_{$:", s[2]))) { | |
2237 | if (expect == XOPERATOR) | |
2238 | no_op("Array length", bufptr); | |
2239 | tokenbuf[0] = '@'; | |
8903cb82 | 2240 | s = scan_ident(s + 1, bufend, tokenbuf + 1, sizeof tokenbuf - 1, |
2241 | FALSE); | |
bbce6d69 | 2242 | if (!tokenbuf[1]) |
a0d0e21e | 2243 | PREREF(DOLSHARP); |
463ee0b2 | 2244 | expect = XOPERATOR; |
bbce6d69 | 2245 | pending_ident = '#'; |
463ee0b2 | 2246 | TOKEN(DOLSHARP); |
79072805 | 2247 | } |
bbce6d69 | 2248 | |
2249 | if (expect == XOPERATOR) | |
2250 | no_op("Scalar", bufptr); | |
2251 | tokenbuf[0] = '$'; | |
8903cb82 | 2252 | s = scan_ident(s, bufend, tokenbuf + 1, sizeof tokenbuf - 1, FALSE); |
bbce6d69 | 2253 | if (!tokenbuf[1]) { |
2254 | if (s == bufend) | |
2255 | yyerror("Final $ should be \\$ or $name"); | |
2256 | PREREF('$'); | |
8990e307 | 2257 | } |
a0d0e21e | 2258 | |
bbce6d69 | 2259 | /* This kludge not intended to be bulletproof. */ |
2260 | if (tokenbuf[1] == '[' && !tokenbuf[2]) { | |
2261 | yylval.opval = newSVOP(OP_CONST, 0, | |
2262 | newSViv((IV)compiling.cop_arybase)); | |
2263 | yylval.opval->op_private = OPpCONST_ARYBASE; | |
2264 | TERM(THING); | |
2265 | } | |
2266 | ||
ff68c719 | 2267 | d = s; |
2268 | if (lex_state == LEX_NORMAL) | |
2269 | s = skipspace(s); | |
2270 | ||
bbce6d69 | 2271 | if ((expect != XREF || oldoldbufptr == last_lop) && intuit_more(s)) { |
2272 | char *t; | |
2273 | if (*s == '[') { | |
2274 | tokenbuf[0] = '@'; | |
2275 | if (dowarn) { | |
2276 | for(t = s + 1; | |
2277 | isSPACE(*t) || isALNUM(*t) || *t == '$'; | |
2278 | t++) ; | |
a0d0e21e LW |
2279 | if (*t++ == ',') { |
2280 | bufptr = skipspace(bufptr); | |
bbce6d69 | 2281 | while (t < bufend && *t != ']') |
2282 | t++; | |
a0d0e21e | 2283 | warn("Multidimensional syntax %.*s not supported", |
bbce6d69 | 2284 | (t - bufptr) + 1, bufptr); |
a0d0e21e LW |
2285 | } |
2286 | } | |
bbce6d69 | 2287 | } |
2288 | else if (*s == '{') { | |
2289 | tokenbuf[0] = '%'; | |
2290 | if (dowarn && strEQ(tokenbuf+1, "SIG") && | |
2291 | (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
2292 | { | |
8903cb82 | 2293 | char tmpbuf[sizeof tokenbuf]; |
a0d0e21e LW |
2294 | STRLEN len; |
2295 | for (t++; isSPACE(*t); t++) ; | |
748a9306 | 2296 | if (isIDFIRST(*t)) { |
8903cb82 | 2297 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, &len); |
748a9306 LW |
2298 | if (*t != '(' && perl_get_cv(tmpbuf, FALSE)) |
2299 | warn("You need to quote \"%s\"", tmpbuf); | |
2300 | } | |
93a17b20 LW |
2301 | } |
2302 | } | |
2f3197b3 | 2303 | } |
bbce6d69 | 2304 | |
2305 | expect = XOPERATOR; | |
ff68c719 | 2306 | if (lex_state == LEX_NORMAL && isSPACE(*d)) { |
bbce6d69 | 2307 | bool islop = (last_lop == oldoldbufptr); |
bbce6d69 | 2308 | if (!islop || last_lop_op == OP_GREPSTART) |
2309 | expect = XOPERATOR; | |
2310 | else if (strchr("$@\"'`q", *s)) | |
2311 | expect = XTERM; /* e.g. print $fh "foo" */ | |
2312 | else if (strchr("&*<%", *s) && isIDFIRST(s[1])) | |
2313 | expect = XTERM; /* e.g. print $fh &sub */ | |
68dc0745 | 2314 | else if (isIDFIRST(*s)) { |
8903cb82 | 2315 | char tmpbuf[sizeof tokenbuf]; |
2316 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
68dc0745 | 2317 | if (keyword(tmpbuf, len)) |
2318 | expect = XTERM; /* e.g. print $fh length() */ | |
2319 | else { | |
2320 | GV *gv = gv_fetchpv(tmpbuf, FALSE, SVt_PVCV); | |
2321 | if (gv && GvCVu(gv)) | |
2322 | expect = XTERM; /* e.g. print $fh subr() */ | |
2323 | } | |
2324 | } | |
bbce6d69 | 2325 | else if (isDIGIT(*s)) |
2326 | expect = XTERM; /* e.g. print $fh 3 */ | |
2327 | else if (*s == '.' && isDIGIT(s[1])) | |
2328 | expect = XTERM; /* e.g. print $fh .3 */ | |
2329 | else if (strchr("/?-+", *s) && !isSPACE(s[1])) | |
2330 | expect = XTERM; /* e.g. print $fh -1 */ | |
2331 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2])) | |
2332 | expect = XTERM; /* print $fh <<"EOF" */ | |
2333 | } | |
2334 | pending_ident = '$'; | |
79072805 | 2335 | TOKEN('$'); |
378cc40b LW |
2336 | |
2337 | case '@': | |
8990e307 | 2338 | if (expect == XOPERATOR) |
bbce6d69 | 2339 | no_op("Array", s); |
2340 | tokenbuf[0] = '@'; | |
8903cb82 | 2341 | s = scan_ident(s, bufend, tokenbuf + 1, sizeof tokenbuf - 1, FALSE); |
bbce6d69 | 2342 | if (!tokenbuf[1]) { |
2343 | if (s == bufend) | |
2344 | yyerror("Final @ should be \\@ or @name"); | |
2345 | PREREF('@'); | |
2346 | } | |
ff68c719 | 2347 | if (lex_state == LEX_NORMAL) |
2348 | s = skipspace(s); | |
bbce6d69 | 2349 | if ((expect != XREF || oldoldbufptr == last_lop) && intuit_more(s)) { |
2350 | if (*s == '{') | |
2351 | tokenbuf[0] = '%'; | |
a0d0e21e LW |
2352 | |
2353 | /* Warn about @ where they meant $. */ | |
2354 | if (dowarn) { | |
2355 | if (*s == '[' || *s == '{') { | |
2356 | char *t = s + 1; | |
2357 | while (*t && (isALNUM(*t) || strchr(" \t$#+-'\"", *t))) | |
2358 | t++; | |
2359 | if (*t == '}' || *t == ']') { | |
2360 | t++; | |
2361 | bufptr = skipspace(bufptr); | |
2362 | warn("Scalar value %.*s better written as $%.*s", | |
2363 | t-bufptr, bufptr, t-bufptr-1, bufptr+1); | |
2364 | } | |
93a17b20 LW |
2365 | } |
2366 | } | |
463ee0b2 | 2367 | } |
bbce6d69 | 2368 | pending_ident = '@'; |
79072805 | 2369 | TERM('@'); |
378cc40b LW |
2370 | |
2371 | case '/': /* may either be division or pattern */ | |
2372 | case '?': /* may either be conditional or pattern */ | |
79072805 | 2373 | if (expect != XOPERATOR) { |
2f3197b3 | 2374 | check_uni(); |
79072805 LW |
2375 | s = scan_pat(s); |
2376 | TERM(sublex_start()); | |
378cc40b LW |
2377 | } |
2378 | tmp = *s++; | |
a687059c | 2379 | if (tmp == '/') |
79072805 | 2380 | Mop(OP_DIVIDE); |
378cc40b LW |
2381 | OPERATOR(tmp); |
2382 | ||
2383 | case '.': | |
748a9306 | 2384 | if (lex_formbrack && lex_brackets == lex_formbrack && s[1] == '\n' && |
fd049845 | 2385 | (s == linestart || s[-1] == '\n') ) { |
85e6fe83 | 2386 | lex_formbrack = 0; |
8990e307 | 2387 | expect = XSTATE; |
79072805 LW |
2388 | goto rightbracket; |
2389 | } | |
2390 | if (expect == XOPERATOR || !isDIGIT(s[1])) { | |
378cc40b | 2391 | tmp = *s++; |
a687059c LW |
2392 | if (*s == tmp) { |
2393 | s++; | |
2f3197b3 LW |
2394 | if (*s == tmp) { |
2395 | s++; | |
79072805 | 2396 | yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
2397 | } |
2398 | else | |
79072805 | 2399 | yylval.ival = 0; |
378cc40b | 2400 | OPERATOR(DOTDOT); |
a687059c | 2401 | } |
79072805 | 2402 | if (expect != XOPERATOR) |
2f3197b3 | 2403 | check_uni(); |
79072805 | 2404 | Aop(OP_CONCAT); |
378cc40b LW |
2405 | } |
2406 | /* FALL THROUGH */ | |
2407 | case '0': case '1': case '2': case '3': case '4': | |
2408 | case '5': case '6': case '7': case '8': case '9': | |
79072805 | 2409 | s = scan_num(s); |
8990e307 LW |
2410 | if (expect == XOPERATOR) |
2411 | no_op("Number",s); | |
79072805 LW |
2412 | TERM(THING); |
2413 | ||
2414 | case '\'': | |
8990e307 | 2415 | s = scan_str(s); |
463ee0b2 | 2416 | if (expect == XOPERATOR) { |
a0d0e21e LW |
2417 | if (lex_formbrack && lex_brackets == lex_formbrack) { |
2418 | expect = XTERM; | |
2419 | depcom(); | |
2420 | return ','; /* grandfather non-comma-format format */ | |
2421 | } | |
463ee0b2 | 2422 | else |
8990e307 | 2423 | no_op("String",s); |
463ee0b2 | 2424 | } |
79072805 | 2425 | if (!s) |
85e6fe83 | 2426 | missingterm((char*)0); |
79072805 LW |
2427 | yylval.ival = OP_CONST; |
2428 | TERM(sublex_start()); | |
2429 | ||
2430 | case '"': | |
8990e307 | 2431 | s = scan_str(s); |
463ee0b2 | 2432 | if (expect == XOPERATOR) { |
a0d0e21e LW |
2433 | if (lex_formbrack && lex_brackets == lex_formbrack) { |
2434 | expect = XTERM; | |
2435 | depcom(); | |
2436 | return ','; /* grandfather non-comma-format format */ | |
2437 | } | |
463ee0b2 | 2438 | else |
8990e307 | 2439 | no_op("String",s); |
463ee0b2 | 2440 | } |
79072805 | 2441 | if (!s) |
85e6fe83 | 2442 | missingterm((char*)0); |
4633a7c4 LW |
2443 | yylval.ival = OP_CONST; |
2444 | for (d = SvPV(lex_stuff, len); len; len--, d++) { | |
2445 | if (*d == '$' || *d == '@' || *d == '\\') { | |
2446 | yylval.ival = OP_STRINGIFY; | |
2447 | break; | |
2448 | } | |
2449 | } | |
79072805 LW |
2450 | TERM(sublex_start()); |
2451 | ||
2452 | case '`': | |
2453 | s = scan_str(s); | |
8990e307 LW |
2454 | if (expect == XOPERATOR) |
2455 | no_op("Backticks",s); | |
79072805 | 2456 | if (!s) |
85e6fe83 | 2457 | missingterm((char*)0); |
79072805 LW |
2458 | yylval.ival = OP_BACKTICK; |
2459 | set_csh(); | |
2460 | TERM(sublex_start()); | |
2461 | ||
2462 | case '\\': | |
2463 | s++; | |
748a9306 LW |
2464 | if (dowarn && lex_inwhat && isDIGIT(*s)) |
2465 | warn("Can't use \\%c to mean $%c in expression", *s, *s); | |
8990e307 LW |
2466 | if (expect == XOPERATOR) |
2467 | no_op("Backslash",s); | |
79072805 LW |
2468 | OPERATOR(REFGEN); |
2469 | ||
2470 | case 'x': | |
2471 | if (isDIGIT(s[1]) && expect == XOPERATOR) { | |
2472 | s++; | |
2473 | Mop(OP_REPEAT); | |
2f3197b3 | 2474 | } |
79072805 LW |
2475 | goto keylookup; |
2476 | ||
378cc40b | 2477 | case '_': |
79072805 LW |
2478 | case 'a': case 'A': |
2479 | case 'b': case 'B': | |
2480 | case 'c': case 'C': | |
2481 | case 'd': case 'D': | |
2482 | case 'e': case 'E': | |
2483 | case 'f': case 'F': | |
2484 | case 'g': case 'G': | |
2485 | case 'h': case 'H': | |
2486 | case 'i': case 'I': | |
2487 | case 'j': case 'J': | |
2488 | case 'k': case 'K': | |
2489 | case 'l': case 'L': | |
2490 | case 'm': case 'M': | |
2491 | case 'n': case 'N': | |
2492 | case 'o': case 'O': | |
2493 | case 'p': case 'P': | |
2494 | case 'q': case 'Q': | |
2495 | case 'r': case 'R': | |
2496 | case 's': case 'S': | |
2497 | case 't': case 'T': | |
2498 | case 'u': case 'U': | |
2499 | case 'v': case 'V': | |
2500 | case 'w': case 'W': | |
2501 | case 'X': | |
2502 | case 'y': case 'Y': | |
2503 | case 'z': case 'Z': | |
2504 | ||
2505 | keylookup: | |
748a9306 | 2506 | bufptr = s; |
8903cb82 | 2507 | s = scan_word(s, tokenbuf, sizeof tokenbuf, FALSE, &len); |
8ebc5c01 | 2508 | |
2509 | /* Some keywords can be followed by any delimiter, including ':' */ | |
2510 | tmp = (len == 1 && strchr("msyq", tokenbuf[0]) || | |
2511 | len == 2 && ((tokenbuf[0] == 't' && tokenbuf[1] == 'r') || | |
2512 | (tokenbuf[0] == 'q' && | |
2513 | strchr("qwx", tokenbuf[1])))); | |
2514 | ||
2515 | /* x::* is just a word, unless x is "CORE" */ | |
2516 | if (!tmp && *s == ':' && s[1] == ':' && strNE(tokenbuf, "CORE")) | |
4633a7c4 LW |
2517 | goto just_a_word; |
2518 | ||
3643fb5f CS |
2519 | d = s; |
2520 | while (d < bufend && isSPACE(*d)) | |
2521 | d++; /* no comments skipped here, or s### is misparsed */ | |
2522 | ||
2523 | /* Is this a label? */ | |
8ebc5c01 | 2524 | if (!tmp && expect == XSTATE |
2525 | && d < bufend && *d == ':' && *(d + 1) != ':') { | |
2526 | s = d + 1; | |
2527 | yylval.pval = savepv(tokenbuf); | |
2528 | CLINE; | |
2529 | TOKEN(LABEL); | |
3643fb5f CS |
2530 | } |
2531 | ||
2532 | /* Check for keywords */ | |
a0d0e21e | 2533 | tmp = keyword(tokenbuf, len); |
748a9306 LW |
2534 | |
2535 | /* Is this a word before a => operator? */ | |
748a9306 LW |
2536 | if (strnEQ(d,"=>",2)) { |
2537 | CLINE; | |
2538 | if (dowarn && (tmp || perl_get_cv(tokenbuf, FALSE))) | |
2539 | warn("Ambiguous use of %s => resolved to \"%s\" =>", | |
2540 | tokenbuf, tokenbuf); | |
2541 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); | |
2542 | yylval.opval->op_private = OPpCONST_BARE; | |
2543 | TERM(WORD); | |
2544 | } | |
2545 | ||
a0d0e21e LW |
2546 | if (tmp < 0) { /* second-class keyword? */ |
2547 | GV* gv; | |
2548 | if (expect != XOPERATOR && | |
a5f75d66 AD |
2549 | (*s != ':' || s[1] != ':') && |
2550 | (gv = gv_fetchpv(tokenbuf, FALSE, SVt_PVCV)) && | |
2551 | GvIMPORTED_CV(gv)) | |
a0d0e21e LW |
2552 | { |
2553 | tmp = 0; | |
2554 | } | |
2555 | else | |
2556 | tmp = -tmp; | |
2557 | } | |
2558 | ||
2559 | reserved_word: | |
2560 | switch (tmp) { | |
79072805 LW |
2561 | |
2562 | default: /* not a keyword */ | |
93a17b20 LW |
2563 | just_a_word: { |
2564 | GV *gv; | |
96e4d5b1 | 2565 | SV *sv; |
748a9306 | 2566 | char lastchar = (bufptr == oldoldbufptr ? 0 : bufptr[-1]); |
8990e307 LW |
2567 | |
2568 | /* Get the rest if it looks like a package qualifier */ | |
2569 | ||
a0d0e21e | 2570 | if (*s == '\'' || *s == ':' && s[1] == ':') { |
8903cb82 | 2571 | s = scan_word(s, tokenbuf + len, sizeof tokenbuf - len, |
2572 | TRUE, &len); | |
a0d0e21e LW |
2573 | if (!len) |
2574 | croak("Bad name after %s::", tokenbuf); | |
2575 | } | |
8990e307 | 2576 | |
3643fb5f | 2577 | if (expect == XOPERATOR) { |
fd049845 | 2578 | if (bufptr == linestart) { |
463ee0b2 LW |
2579 | curcop->cop_line--; |
2580 | warn(warn_nosemi); | |
2581 | curcop->cop_line++; | |
2582 | } | |
2583 | else | |
54310121 | 2584 | no_op("Bareword",s); |
463ee0b2 | 2585 | } |
8990e307 LW |
2586 | |
2587 | /* Look for a subroutine with this name in current package. */ | |
2588 | ||
85e6fe83 | 2589 | gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV); |
8990e307 | 2590 | |
a0d0e21e LW |
2591 | /* Presume this is going to be a bareword of some sort. */ |
2592 | ||
2593 | CLINE; | |
2594 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); | |
2595 | yylval.opval->op_private = OPpCONST_BARE; | |
2596 | ||
8990e307 LW |
2597 | /* See if it's the indirect object for a list operator. */ |
2598 | ||
a0d0e21e LW |
2599 | if (oldoldbufptr && |
2600 | oldoldbufptr < bufptr && | |
2601 | (oldoldbufptr == last_lop || oldoldbufptr == last_uni) && | |
2602 | /* NO SKIPSPACE BEFORE HERE! */ | |
2603 | (expect == XREF || | |
2604 | (opargs[last_lop_op] >> OASHIFT & 7) == OA_FILEREF) ) | |
2605 | { | |
748a9306 LW |
2606 | bool immediate_paren = *s == '('; |
2607 | ||
a0d0e21e LW |
2608 | /* (Now we can afford to cross potential line boundary.) */ |
2609 | s = skipspace(s); | |
2610 | ||
2611 | /* Two barewords in a row may indicate method call. */ | |
2612 | ||
2613 | if ((isALPHA(*s) || *s == '$') && (tmp=intuit_method(s,gv))) | |
2614 | return tmp; | |
2615 | ||
2616 | /* If not a declared subroutine, it's an indirect object. */ | |
2617 | /* (But it's an indir obj regardless for sort.) */ | |
2618 | ||
8e07c86e | 2619 | if ((last_lop_op == OP_SORT || |
8ebc5c01 | 2620 | (!immediate_paren && (!gv || !GvCVu(gv))) ) && |
8e07c86e | 2621 | (last_lop_op != OP_MAPSTART && last_lop_op != OP_GREPSTART)){ |
748a9306 LW |
2622 | expect = (last_lop == oldoldbufptr) ? XTERM : XOPERATOR; |
2623 | goto bareword; | |
93a17b20 LW |
2624 | } |
2625 | } | |
8990e307 LW |
2626 | |
2627 | /* If followed by a paren, it's certainly a subroutine. */ | |
2628 | ||
2629 | expect = XOPERATOR; | |
2630 | s = skipspace(s); | |
93a17b20 | 2631 | if (*s == '(') { |
79072805 | 2632 | CLINE; |
96e4d5b1 | 2633 | if (gv && GvCVu(gv)) { |
2634 | for (d = s + 1; *d == ' ' || *d == '\t'; d++) ; | |
2635 | if (*d == ')' && (sv = cv_const_sv(GvCV(gv)))) { | |
2636 | s = d + 1; | |
2637 | goto its_constant; | |
2638 | } | |
2639 | } | |
a0d0e21e | 2640 | nextval[nexttoke].opval = yylval.opval; |
463ee0b2 | 2641 | expect = XOPERATOR; |
93a17b20 | 2642 | force_next(WORD); |
c07a80fd | 2643 | yylval.ival = 0; |
463ee0b2 | 2644 | TOKEN('&'); |
79072805 | 2645 | } |
93a17b20 | 2646 | |
a0d0e21e | 2647 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 2648 | |
8ebc5c01 | 2649 | if ((*s == '$' || *s == '{') && (!gv || !GvCVu(gv))) { |
463ee0b2 | 2650 | last_lop = oldbufptr; |
8990e307 | 2651 | last_lop_op = OP_METHOD; |
93a17b20 | 2652 | PREBLOCK(METHOD); |
463ee0b2 LW |
2653 | } |
2654 | ||
8990e307 LW |
2655 | /* If followed by a bareword, see if it looks like indir obj. */ |
2656 | ||
a0d0e21e LW |
2657 | if ((isALPHA(*s) || *s == '$') && (tmp = intuit_method(s,gv))) |
2658 | return tmp; | |
93a17b20 | 2659 | |
8990e307 LW |
2660 | /* Not a method, so call it a subroutine (if defined) */ |
2661 | ||
8ebc5c01 | 2662 | if (gv && GvCVu(gv)) { |
46fc3d4c | 2663 | CV* cv; |
748a9306 | 2664 | if (lastchar == '-') |
c2960299 | 2665 | warn("Ambiguous use of -%s resolved as -&%s()", |
748a9306 | 2666 | tokenbuf, tokenbuf); |
8990e307 | 2667 | last_lop = oldbufptr; |
a0d0e21e | 2668 | last_lop_op = OP_ENTERSUB; |
89bfa8cd | 2669 | /* Check for a constant sub */ |
46fc3d4c | 2670 | cv = GvCV(gv); |
96e4d5b1 | 2671 | if ((sv = cv_const_sv(cv))) { |
2672 | its_constant: | |
2673 | SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv); | |
2674 | ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc(sv); | |
2675 | yylval.opval->op_private = 0; | |
2676 | TOKEN(WORD); | |
89bfa8cd | 2677 | } |
2678 | ||
a5f75d66 AD |
2679 | /* Resolve to GV now. */ |
2680 | op_free(yylval.opval); | |
2681 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
4633a7c4 LW |
2682 | /* Is there a prototype? */ |
2683 | if (SvPOK(cv)) { | |
2684 | STRLEN len; | |
2685 | char *proto = SvPV((SV*)cv, len); | |
2686 | if (!len) | |
2687 | TERM(FUNC0SUB); | |
2688 | if (strEQ(proto, "$")) | |
2689 | OPERATOR(UNIOPSUB); | |
2690 | if (*proto == '&' && *s == '{') { | |
2691 | sv_setpv(subname,"__ANON__"); | |
2692 | PREBLOCK(LSTOPSUB); | |
2693 | } | |
2694 | } | |
a5f75d66 | 2695 | nextval[nexttoke].opval = yylval.opval; |
8990e307 LW |
2696 | expect = XTERM; |
2697 | force_next(WORD); | |
2698 | TOKEN(NOAMP); | |
2699 | } | |
748a9306 LW |
2700 | |
2701 | if (hints & HINT_STRICT_SUBS && | |
2702 | lastchar != '-' && | |
a0d0e21e | 2703 | strnNE(s,"->",2) && |
9b01e405 | 2704 | last_lop_op != OP_TRUNCATE && /* S/F prototype in opcode.pl */ |
a0d0e21e LW |
2705 | last_lop_op != OP_ACCEPT && |
2706 | last_lop_op != OP_PIPE_OP && | |
2707 | last_lop_op != OP_SOCKPAIR) | |
2708 | { | |
2709 | warn( | |
2710 | "Bareword \"%s\" not allowed while \"strict subs\" in use", | |
85e6fe83 LW |
2711 | tokenbuf); |
2712 | ++error_count; | |
2713 | } | |
8990e307 LW |
2714 | |
2715 | /* Call it a bare word */ | |
2716 | ||
748a9306 LW |
2717 | bareword: |
2718 | if (dowarn) { | |
2719 | if (lastchar != '-') { | |
2720 | for (d = tokenbuf; *d && isLOWER(*d); d++) ; | |
2721 | if (!*d) | |
2722 | warn(warn_reserved, tokenbuf); | |
2723 | } | |
2724 | } | |
2725 | if (lastchar && strchr("*%&", lastchar)) { | |
2726 | warn("Operator or semicolon missing before %c%s", | |
2727 | lastchar, tokenbuf); | |
c2960299 | 2728 | warn("Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
2729 | lastchar, lastchar); |
2730 | } | |
93a17b20 | 2731 | TOKEN(WORD); |
79072805 | 2732 | } |
79072805 | 2733 | |
68dc0745 | 2734 | case KEY___FILE__: |
46fc3d4c | 2735 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
2736 | newSVsv(GvSV(curcop->cop_filegv))); | |
2737 | TERM(THING); | |
2738 | ||
79072805 | 2739 | case KEY___LINE__: |
46fc3d4c | 2740 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
2741 | newSVpvf("%ld", (long)curcop->cop_line)); | |
79072805 | 2742 | TERM(THING); |
68dc0745 | 2743 | |
2744 | case KEY___PACKAGE__: | |
2745 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, | |
2746 | (curstash | |
2747 | ? newSVsv(curstname) | |
2748 | : &sv_undef)); | |
2749 | TERM(THING); | |
79072805 | 2750 | |
e50aee73 | 2751 | case KEY___DATA__: |
79072805 LW |
2752 | case KEY___END__: { |
2753 | GV *gv; | |
79072805 LW |
2754 | |
2755 | /*SUPPRESS 560*/ | |
a5f75d66 | 2756 | if (rsfp && (!in_eval || tokenbuf[2] == 'D')) { |
e50aee73 AD |
2757 | char *pname = "main"; |
2758 | if (tokenbuf[2] == 'D') | |
2759 | pname = HvNAME(curstash ? curstash : defstash); | |
46fc3d4c | 2760 | gv = gv_fetchpv(form("%s::DATA", pname), TRUE, SVt_PVIO); |
a5f75d66 | 2761 | GvMULTI_on(gv); |
79072805 | 2762 | if (!GvIO(gv)) |
a0d0e21e LW |
2763 | GvIOp(gv) = newIO(); |
2764 | IoIFP(GvIOp(gv)) = rsfp; | |
2765 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
2766 | { | |
760ac839 | 2767 | int fd = PerlIO_fileno(rsfp); |
a0d0e21e LW |
2768 | fcntl(fd,F_SETFD,fd >= 3); |
2769 | } | |
79072805 | 2770 | #endif |
fd049845 | 2771 | /* Mark this internal pseudo-handle as clean */ |
2772 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
79072805 | 2773 | if (preprocess) |
a0d0e21e | 2774 | IoTYPE(GvIOp(gv)) = '|'; |
760ac839 | 2775 | else if ((PerlIO*)rsfp == PerlIO_stdin()) |
a0d0e21e | 2776 | IoTYPE(GvIOp(gv)) = '-'; |
79072805 | 2777 | else |
a0d0e21e | 2778 | IoTYPE(GvIOp(gv)) = '<'; |
79072805 LW |
2779 | rsfp = Nullfp; |
2780 | } | |
2781 | goto fake_eof; | |
e929a76b | 2782 | } |
de3bb511 | 2783 | |
8990e307 | 2784 | case KEY_AUTOLOAD: |
ed6116ce | 2785 | case KEY_DESTROY: |
79072805 LW |
2786 | case KEY_BEGIN: |
2787 | case KEY_END: | |
a0d0e21e | 2788 | if (expect == XSTATE) { |
93a17b20 LW |
2789 | s = bufptr; |
2790 | goto really_sub; | |
79072805 LW |
2791 | } |
2792 | goto just_a_word; | |
2793 | ||
a0d0e21e LW |
2794 | case KEY_CORE: |
2795 | if (*s == ':' && s[1] == ':') { | |
2796 | s += 2; | |
748a9306 | 2797 | d = s; |
8903cb82 | 2798 | s = scan_word(s, tokenbuf, sizeof tokenbuf, FALSE, &len); |
a0d0e21e LW |
2799 | tmp = keyword(tokenbuf, len); |
2800 | if (tmp < 0) | |
2801 | tmp = -tmp; | |
2802 | goto reserved_word; | |
2803 | } | |
2804 | goto just_a_word; | |
2805 | ||
463ee0b2 LW |
2806 | case KEY_abs: |
2807 | UNI(OP_ABS); | |
2808 | ||
79072805 LW |
2809 | case KEY_alarm: |
2810 | UNI(OP_ALARM); | |
2811 | ||
2812 | case KEY_accept: | |
a0d0e21e | 2813 | LOP(OP_ACCEPT,XTERM); |
79072805 | 2814 | |
463ee0b2 LW |
2815 | case KEY_and: |
2816 | OPERATOR(ANDOP); | |
2817 | ||
79072805 | 2818 | case KEY_atan2: |
a0d0e21e | 2819 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 2820 | |
79072805 | 2821 | case KEY_bind: |
a0d0e21e | 2822 | LOP(OP_BIND,XTERM); |
79072805 LW |
2823 | |
2824 | case KEY_binmode: | |
2825 | UNI(OP_BINMODE); | |
2826 | ||
2827 | case KEY_bless: | |
a0d0e21e | 2828 | LOP(OP_BLESS,XTERM); |
79072805 LW |
2829 | |
2830 | case KEY_chop: | |
2831 | UNI(OP_CHOP); | |
2832 | ||
2833 | case KEY_continue: | |
2834 | PREBLOCK(CONTINUE); | |
2835 | ||
2836 | case KEY_chdir: | |
85e6fe83 | 2837 | (void)gv_fetchpv("ENV",TRUE, SVt_PVHV); /* may use HOME */ |
79072805 LW |
2838 | UNI(OP_CHDIR); |
2839 | ||
2840 | case KEY_close: | |
2841 | UNI(OP_CLOSE); | |
2842 | ||
2843 | case KEY_closedir: | |
2844 | UNI(OP_CLOSEDIR); | |
2845 | ||
2846 | case KEY_cmp: | |
2847 | Eop(OP_SCMP); | |
2848 | ||
2849 | case KEY_caller: | |
2850 | UNI(OP_CALLER); | |
2851 | ||
2852 | case KEY_crypt: | |
2853 | #ifdef FCRYPT | |
de3bb511 LW |
2854 | if (!cryptseen++) |
2855 | init_des(); | |
a687059c | 2856 | #endif |
a0d0e21e | 2857 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
2858 | |
2859 | case KEY_chmod: | |
748a9306 LW |
2860 | if (dowarn) { |
2861 | for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ; | |
2862 | if (*d != '0' && isDIGIT(*d)) | |
2863 | yywarn("chmod: mode argument is missing initial 0"); | |
2864 | } | |
a0d0e21e | 2865 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
2866 | |
2867 | case KEY_chown: | |
a0d0e21e | 2868 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
2869 | |
2870 | case KEY_connect: | |
a0d0e21e | 2871 | LOP(OP_CONNECT,XTERM); |
79072805 | 2872 | |
463ee0b2 LW |
2873 | case KEY_chr: |
2874 | UNI(OP_CHR); | |
2875 | ||
79072805 LW |
2876 | case KEY_cos: |
2877 | UNI(OP_COS); | |
2878 | ||
2879 | case KEY_chroot: | |
2880 | UNI(OP_CHROOT); | |
2881 | ||
2882 | case KEY_do: | |
2883 | s = skipspace(s); | |
2884 | if (*s == '{') | |
a0d0e21e | 2885 | PRETERMBLOCK(DO); |
79072805 | 2886 | if (*s != '\'') |
a0d0e21e | 2887 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
378cc40b | 2888 | OPERATOR(DO); |
79072805 LW |
2889 | |
2890 | case KEY_die: | |
a0d0e21e LW |
2891 | hints |= HINT_BLOCK_SCOPE; |
2892 | LOP(OP_DIE,XTERM); | |
79072805 LW |
2893 | |
2894 | case KEY_defined: | |
2895 | UNI(OP_DEFINED); | |
2896 | ||
2897 | case KEY_delete: | |
a0d0e21e | 2898 | UNI(OP_DELETE); |
79072805 LW |
2899 | |
2900 | case KEY_dbmopen: | |
a0d0e21e LW |
2901 | gv_fetchpv("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
2902 | LOP(OP_DBMOPEN,XTERM); | |
79072805 LW |
2903 | |
2904 | case KEY_dbmclose: | |
2905 | UNI(OP_DBMCLOSE); | |
2906 | ||
2907 | case KEY_dump: | |
a0d0e21e | 2908 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
2909 | LOOPX(OP_DUMP); |
2910 | ||
2911 | case KEY_else: | |
2912 | PREBLOCK(ELSE); | |
2913 | ||
2914 | case KEY_elsif: | |
2915 | yylval.ival = curcop->cop_line; | |
2916 | OPERATOR(ELSIF); | |
2917 | ||
2918 | case KEY_eq: | |
2919 | Eop(OP_SEQ); | |
2920 | ||
a0d0e21e LW |
2921 | case KEY_exists: |
2922 | UNI(OP_EXISTS); | |
2923 | ||
79072805 LW |
2924 | case KEY_exit: |
2925 | UNI(OP_EXIT); | |
2926 | ||
2927 | case KEY_eval: | |
79072805 | 2928 | s = skipspace(s); |
a0d0e21e | 2929 | expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 2930 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
2931 | |
2932 | case KEY_eof: | |
2933 | UNI(OP_EOF); | |
2934 | ||
2935 | case KEY_exp: | |
2936 | UNI(OP_EXP); | |
2937 | ||
2938 | case KEY_each: | |
2939 | UNI(OP_EACH); | |
2940 | ||
2941 | case KEY_exec: | |
2942 | set_csh(); | |
a0d0e21e | 2943 | LOP(OP_EXEC,XREF); |
79072805 LW |
2944 | |
2945 | case KEY_endhostent: | |
2946 | FUN0(OP_EHOSTENT); | |
2947 | ||
2948 | case KEY_endnetent: | |
2949 | FUN0(OP_ENETENT); | |
2950 | ||
2951 | case KEY_endservent: | |
2952 | FUN0(OP_ESERVENT); | |
2953 | ||
2954 | case KEY_endprotoent: | |
2955 | FUN0(OP_EPROTOENT); | |
2956 | ||
2957 | case KEY_endpwent: | |
2958 | FUN0(OP_EPWENT); | |
2959 | ||
2960 | case KEY_endgrent: | |
2961 | FUN0(OP_EGRENT); | |
2962 | ||
2963 | case KEY_for: | |
2964 | case KEY_foreach: | |
2965 | yylval.ival = curcop->cop_line; | |
55497cff | 2966 | s = skipspace(s); |
2967 | if (isIDFIRST(*s)) { | |
2968 | char *p = s; | |
2969 | if ((bufend - p) >= 3 && | |
2970 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) | |
2971 | p += 2; | |
2972 | p = skipspace(p); | |
2973 | if (isIDFIRST(*p)) | |
2974 | croak("Missing $ on loop variable"); | |
2975 | } | |
79072805 LW |
2976 | OPERATOR(FOR); |
2977 | ||
2978 | case KEY_formline: | |
a0d0e21e | 2979 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
2980 | |
2981 | case KEY_fork: | |
2982 | FUN0(OP_FORK); | |
2983 | ||
2984 | case KEY_fcntl: | |
a0d0e21e | 2985 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
2986 | |
2987 | case KEY_fileno: | |
2988 | UNI(OP_FILENO); | |
2989 | ||
2990 | case KEY_flock: | |
a0d0e21e | 2991 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
2992 | |
2993 | case KEY_gt: | |
2994 | Rop(OP_SGT); | |
2995 | ||
2996 | case KEY_ge: | |
2997 | Rop(OP_SGE); | |
2998 | ||
2999 | case KEY_grep: | |
a0d0e21e | 3000 | LOP(OP_GREPSTART, *s == '(' ? XTERM : XREF); |
79072805 LW |
3001 | |
3002 | case KEY_goto: | |
a0d0e21e | 3003 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
3004 | LOOPX(OP_GOTO); |
3005 | ||
3006 | case KEY_gmtime: | |
3007 | UNI(OP_GMTIME); | |
3008 | ||
3009 | case KEY_getc: | |
3010 | UNI(OP_GETC); | |
3011 | ||
3012 | case KEY_getppid: | |
3013 | FUN0(OP_GETPPID); | |
3014 | ||
3015 | case KEY_getpgrp: | |
3016 | UNI(OP_GETPGRP); | |
3017 | ||
3018 | case KEY_getpriority: | |
a0d0e21e | 3019 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
3020 | |
3021 | case KEY_getprotobyname: | |
3022 | UNI(OP_GPBYNAME); | |
3023 | ||
3024 | case KEY_getprotobynumber: | |
a0d0e21e | 3025 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
3026 | |
3027 | case KEY_getprotoent: | |
3028 | FUN0(OP_GPROTOENT); | |
3029 | ||
3030 | case KEY_getpwent: | |
3031 | FUN0(OP_GPWENT); | |
3032 | ||
3033 | case KEY_getpwnam: | |
ff68c719 | 3034 | UNI(OP_GPWNAM); |
79072805 LW |
3035 | |
3036 | case KEY_getpwuid: | |
ff68c719 | 3037 | UNI(OP_GPWUID); |
79072805 LW |
3038 | |
3039 | case KEY_getpeername: | |
3040 | UNI(OP_GETPEERNAME); | |
3041 | ||
3042 | case KEY_gethostbyname: | |
3043 | UNI(OP_GHBYNAME); | |
3044 | ||
3045 | case KEY_gethostbyaddr: | |
a0d0e21e | 3046 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
3047 | |
3048 | case KEY_gethostent: | |
3049 | FUN0(OP_GHOSTENT); | |
3050 | ||
3051 | case KEY_getnetbyname: | |
3052 | UNI(OP_GNBYNAME); | |
3053 | ||
3054 | case KEY_getnetbyaddr: | |
a0d0e21e | 3055 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
3056 | |
3057 | case KEY_getnetent: | |
3058 | FUN0(OP_GNETENT); | |
3059 | ||
3060 | case KEY_getservbyname: | |
a0d0e21e | 3061 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
3062 | |
3063 | case KEY_getservbyport: | |
a0d0e21e | 3064 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
3065 | |
3066 | case KEY_getservent: | |
3067 | FUN0(OP_GSERVENT); | |
3068 | ||
3069 | case KEY_getsockname: | |
3070 | UNI(OP_GETSOCKNAME); | |
3071 | ||
3072 | case KEY_getsockopt: | |
a0d0e21e | 3073 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
3074 | |
3075 | case KEY_getgrent: | |
3076 | FUN0(OP_GGRENT); | |
3077 | ||
3078 | case KEY_getgrnam: | |
ff68c719 | 3079 | UNI(OP_GGRNAM); |
79072805 LW |
3080 | |
3081 | case KEY_getgrgid: | |
ff68c719 | 3082 | UNI(OP_GGRGID); |
79072805 LW |
3083 | |
3084 | case KEY_getlogin: | |
3085 | FUN0(OP_GETLOGIN); | |
3086 | ||
93a17b20 | 3087 | case KEY_glob: |
a0d0e21e LW |
3088 | set_csh(); |
3089 | LOP(OP_GLOB,XTERM); | |
93a17b20 | 3090 | |
79072805 LW |
3091 | case KEY_hex: |
3092 | UNI(OP_HEX); | |
3093 | ||
3094 | case KEY_if: | |
3095 | yylval.ival = curcop->cop_line; | |
71be2cbc | 3096 | OPERATOR(IF); |
79072805 LW |
3097 | |
3098 | case KEY_index: | |
a0d0e21e | 3099 | LOP(OP_INDEX,XTERM); |
79072805 LW |
3100 | |
3101 | case KEY_int: | |
3102 | UNI(OP_INT); | |
3103 | ||
3104 | case KEY_ioctl: | |
a0d0e21e | 3105 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
3106 | |
3107 | case KEY_join: | |
a0d0e21e | 3108 | LOP(OP_JOIN,XTERM); |
79072805 LW |
3109 | |
3110 | case KEY_keys: | |
3111 | UNI(OP_KEYS); | |
3112 | ||
3113 | case KEY_kill: | |
a0d0e21e | 3114 | LOP(OP_KILL,XTERM); |
79072805 LW |
3115 | |
3116 | case KEY_last: | |
a0d0e21e | 3117 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 3118 | LOOPX(OP_LAST); |
a0d0e21e | 3119 | |
79072805 LW |
3120 | case KEY_lc: |
3121 | UNI(OP_LC); | |
3122 | ||
3123 | case KEY_lcfirst: | |
3124 | UNI(OP_LCFIRST); | |
3125 | ||
3126 | case KEY_local: | |
3127 | OPERATOR(LOCAL); | |
3128 | ||
3129 | case KEY_length: | |
3130 | UNI(OP_LENGTH); | |
3131 | ||
3132 | case KEY_lt: | |
3133 | Rop(OP_SLT); | |
3134 | ||
3135 | case KEY_le: | |
3136 | Rop(OP_SLE); | |
3137 | ||
3138 | case KEY_localtime: | |
3139 | UNI(OP_LOCALTIME); | |
3140 | ||
3141 | case KEY_log: | |
3142 | UNI(OP_LOG); | |
3143 | ||
3144 | case KEY_link: | |
a0d0e21e | 3145 | LOP(OP_LINK,XTERM); |
79072805 LW |
3146 | |
3147 | case KEY_listen: | |
a0d0e21e | 3148 | LOP(OP_LISTEN,XTERM); |
79072805 LW |
3149 | |
3150 | case KEY_lstat: | |
3151 | UNI(OP_LSTAT); | |
3152 | ||
3153 | case KEY_m: | |
3154 | s = scan_pat(s); | |
3155 | TERM(sublex_start()); | |
3156 | ||
a0d0e21e LW |
3157 | case KEY_map: |
3158 | LOP(OP_MAPSTART,XREF); | |
3159 | ||
79072805 | 3160 | case KEY_mkdir: |
a0d0e21e | 3161 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
3162 | |
3163 | case KEY_msgctl: | |
a0d0e21e | 3164 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
3165 | |
3166 | case KEY_msgget: | |
a0d0e21e | 3167 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
3168 | |
3169 | case KEY_msgrcv: | |
a0d0e21e | 3170 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
3171 | |
3172 | case KEY_msgsnd: | |
a0d0e21e | 3173 | LOP(OP_MSGSND,XTERM); |
79072805 | 3174 | |
93a17b20 LW |
3175 | case KEY_my: |
3176 | in_my = TRUE; | |
55497cff | 3177 | OPERATOR(MY); |
93a17b20 | 3178 | |
79072805 | 3179 | case KEY_next: |
a0d0e21e | 3180 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
3181 | LOOPX(OP_NEXT); |
3182 | ||
3183 | case KEY_ne: | |
3184 | Eop(OP_SNE); | |
3185 | ||
a0d0e21e LW |
3186 | case KEY_no: |
3187 | if (expect != XSTATE) | |
3188 | yyerror("\"no\" not allowed in expression"); | |
3189 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
89bfa8cd | 3190 | s = force_version(s); |
a0d0e21e LW |
3191 | yylval.ival = 0; |
3192 | OPERATOR(USE); | |
3193 | ||
3194 | case KEY_not: | |
3195 | OPERATOR(NOTOP); | |
3196 | ||
79072805 | 3197 | case KEY_open: |
93a17b20 LW |
3198 | s = skipspace(s); |
3199 | if (isIDFIRST(*s)) { | |
3200 | char *t; | |
3201 | for (d = s; isALNUM(*d); d++) ; | |
3202 | t = skipspace(d); | |
3203 | if (strchr("|&*+-=!?:.", *t)) | |
3204 | warn("Precedence problem: open %.*s should be open(%.*s)", | |
3205 | d-s,s, d-s,s); | |
3206 | } | |
a0d0e21e | 3207 | LOP(OP_OPEN,XTERM); |
79072805 | 3208 | |
463ee0b2 | 3209 | case KEY_or: |
a0d0e21e | 3210 | yylval.ival = OP_OR; |
463ee0b2 LW |
3211 | OPERATOR(OROP); |
3212 | ||
79072805 LW |
3213 | case KEY_ord: |
3214 | UNI(OP_ORD); | |
3215 | ||
3216 | case KEY_oct: | |
3217 | UNI(OP_OCT); | |
3218 | ||
3219 | case KEY_opendir: | |
a0d0e21e | 3220 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
3221 | |
3222 | case KEY_print: | |
3223 | checkcomma(s,tokenbuf,"filehandle"); | |
a0d0e21e | 3224 | LOP(OP_PRINT,XREF); |
79072805 LW |
3225 | |
3226 | case KEY_printf: | |
3227 | checkcomma(s,tokenbuf,"filehandle"); | |
a0d0e21e | 3228 | LOP(OP_PRTF,XREF); |
79072805 | 3229 | |
c07a80fd | 3230 | case KEY_prototype: |
3231 | UNI(OP_PROTOTYPE); | |
3232 | ||
79072805 | 3233 | case KEY_push: |
a0d0e21e | 3234 | LOP(OP_PUSH,XTERM); |
79072805 LW |
3235 | |
3236 | case KEY_pop: | |
3237 | UNI(OP_POP); | |
3238 | ||
a0d0e21e LW |
3239 | case KEY_pos: |
3240 | UNI(OP_POS); | |
3241 | ||
79072805 | 3242 | case KEY_pack: |
a0d0e21e | 3243 | LOP(OP_PACK,XTERM); |
79072805 LW |
3244 | |
3245 | case KEY_package: | |
a0d0e21e | 3246 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
3247 | OPERATOR(PACKAGE); |
3248 | ||
3249 | case KEY_pipe: | |
a0d0e21e | 3250 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
3251 | |
3252 | case KEY_q: | |
3253 | s = scan_str(s); | |
3254 | if (!s) | |
85e6fe83 | 3255 | missingterm((char*)0); |
79072805 LW |
3256 | yylval.ival = OP_CONST; |
3257 | TERM(sublex_start()); | |
3258 | ||
a0d0e21e LW |
3259 | case KEY_quotemeta: |
3260 | UNI(OP_QUOTEMETA); | |
3261 | ||
8990e307 LW |
3262 | case KEY_qw: |
3263 | s = scan_str(s); | |
3264 | if (!s) | |
85e6fe83 | 3265 | missingterm((char*)0); |
55497cff | 3266 | if (dowarn && SvLEN(lex_stuff)) { |
3267 | d = SvPV_force(lex_stuff, len); | |
3268 | for (; len; --len, ++d) { | |
3269 | if (*d == ',') { | |
3270 | warn("Possible attempt to separate words with commas"); | |
3271 | break; | |
3272 | } | |
3273 | if (*d == '#') { | |
3274 | warn("Possible attempt to put comments in qw() list"); | |
3275 | break; | |
3276 | } | |
3277 | } | |
3278 | } | |
8990e307 LW |
3279 | force_next(')'); |
3280 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, q(lex_stuff)); | |
3281 | lex_stuff = Nullsv; | |
3282 | force_next(THING); | |
3283 | force_next(','); | |
3284 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(" ",1)); | |
3285 | force_next(THING); | |
3286 | force_next('('); | |
a0d0e21e LW |
3287 | yylval.ival = OP_SPLIT; |
3288 | CLINE; | |
3289 | expect = XTERM; | |
3290 | bufptr = s; | |
3291 | last_lop = oldbufptr; | |
3292 | last_lop_op = OP_SPLIT; | |
3293 | return FUNC; | |
8990e307 | 3294 | |
79072805 LW |
3295 | case KEY_qq: |
3296 | s = scan_str(s); | |
3297 | if (!s) | |
85e6fe83 | 3298 | missingterm((char*)0); |
a0d0e21e | 3299 | yylval.ival = OP_STRINGIFY; |
ed6116ce LW |
3300 | if (SvIVX(lex_stuff) == '\'') |
3301 | SvIVX(lex_stuff) = 0; /* qq'$foo' should intepolate */ | |
79072805 LW |
3302 | TERM(sublex_start()); |
3303 | ||
3304 | case KEY_qx: | |
3305 | s = scan_str(s); | |
3306 | if (!s) | |
85e6fe83 | 3307 | missingterm((char*)0); |
79072805 LW |
3308 | yylval.ival = OP_BACKTICK; |
3309 | set_csh(); | |
3310 | TERM(sublex_start()); | |
3311 | ||
3312 | case KEY_return: | |
3313 | OLDLOP(OP_RETURN); | |
3314 | ||
3315 | case KEY_require: | |
748a9306 | 3316 | *tokenbuf = '\0'; |
a0d0e21e | 3317 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
748a9306 | 3318 | if (isIDFIRST(*tokenbuf)) |
89bfa8cd | 3319 | gv_stashpvn(tokenbuf, strlen(tokenbuf), TRUE); |
748a9306 | 3320 | else if (*s == '<') |
a0d0e21e | 3321 | yyerror("<> should be quotes"); |
463ee0b2 | 3322 | UNI(OP_REQUIRE); |
79072805 LW |
3323 | |
3324 | case KEY_reset: | |
3325 | UNI(OP_RESET); | |
3326 | ||
3327 | case KEY_redo: | |
a0d0e21e | 3328 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
3329 | LOOPX(OP_REDO); |
3330 | ||
3331 | case KEY_rename: | |
a0d0e21e | 3332 | LOP(OP_RENAME,XTERM); |
79072805 LW |
3333 | |
3334 | case KEY_rand: | |
3335 | UNI(OP_RAND); | |
3336 | ||
3337 | case KEY_rmdir: | |
3338 | UNI(OP_RMDIR); | |
3339 | ||
3340 | case KEY_rindex: | |
a0d0e21e | 3341 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
3342 | |
3343 | case KEY_read: | |
a0d0e21e | 3344 | LOP(OP_READ,XTERM); |
79072805 LW |
3345 | |
3346 | case KEY_readdir: | |
3347 | UNI(OP_READDIR); | |
3348 | ||
93a17b20 LW |
3349 | case KEY_readline: |
3350 | set_csh(); | |
3351 | UNI(OP_READLINE); | |
3352 | ||
3353 | case KEY_readpipe: | |
3354 | set_csh(); | |
3355 | UNI(OP_BACKTICK); | |
3356 | ||
79072805 LW |
3357 | case KEY_rewinddir: |
3358 | UNI(OP_REWINDDIR); | |
3359 | ||
3360 | case KEY_recv: | |
a0d0e21e | 3361 | LOP(OP_RECV,XTERM); |
79072805 LW |
3362 | |
3363 | case KEY_reverse: | |
a0d0e21e | 3364 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
3365 | |
3366 | case KEY_readlink: | |
3367 | UNI(OP_READLINK); | |
3368 | ||
3369 | case KEY_ref: | |
3370 | UNI(OP_REF); | |
3371 | ||
3372 | case KEY_s: | |
3373 | s = scan_subst(s); | |
3374 | if (yylval.opval) | |
3375 | TERM(sublex_start()); | |
3376 | else | |
3377 | TOKEN(1); /* force error */ | |
3378 | ||
a0d0e21e LW |
3379 | case KEY_chomp: |
3380 | UNI(OP_CHOMP); | |
3381 | ||
79072805 LW |
3382 | case KEY_scalar: |
3383 | UNI(OP_SCALAR); | |
3384 | ||
3385 | case KEY_select: | |
a0d0e21e | 3386 | LOP(OP_SELECT,XTERM); |
79072805 LW |
3387 | |
3388 | case KEY_seek: | |
a0d0e21e | 3389 | LOP(OP_SEEK,XTERM); |
79072805 LW |
3390 | |
3391 | case KEY_semctl: | |
a0d0e21e | 3392 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
3393 | |
3394 | case KEY_semget: | |
a0d0e21e | 3395 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
3396 | |
3397 | case KEY_semop: | |
a0d0e21e | 3398 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
3399 | |
3400 | case KEY_send: | |
a0d0e21e | 3401 | LOP(OP_SEND,XTERM); |
79072805 LW |
3402 | |
3403 | case KEY_setpgrp: | |
a0d0e21e | 3404 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
3405 | |
3406 | case KEY_setpriority: | |
a0d0e21e | 3407 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
3408 | |
3409 | case KEY_sethostent: | |
ff68c719 | 3410 | UNI(OP_SHOSTENT); |
79072805 LW |
3411 | |
3412 | case KEY_setnetent: | |
ff68c719 | 3413 | UNI(OP_SNETENT); |
79072805 LW |
3414 | |
3415 | case KEY_setservent: | |
ff68c719 | 3416 | UNI(OP_SSERVENT); |
79072805 LW |
3417 | |
3418 | case KEY_setprotoent: | |
ff68c719 | 3419 | UNI(OP_SPROTOENT); |
79072805 LW |
3420 | |
3421 | case KEY_setpwent: | |
3422 | FUN0(OP_SPWENT); | |
3423 | ||
3424 | case KEY_setgrent: | |
3425 | FUN0(OP_SGRENT); | |
3426 | ||
3427 | case KEY_seekdir: | |
a0d0e21e | 3428 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
3429 | |
3430 | case KEY_setsockopt: | |
a0d0e21e | 3431 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
3432 | |
3433 | case KEY_shift: | |
3434 | UNI(OP_SHIFT); | |
3435 | ||
3436 | case KEY_shmctl: | |
a0d0e21e | 3437 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
3438 | |
3439 | case KEY_shmget: | |
a0d0e21e | 3440 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
3441 | |
3442 | case KEY_shmread: | |
a0d0e21e | 3443 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
3444 | |
3445 | case KEY_shmwrite: | |
a0d0e21e | 3446 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
3447 | |
3448 | case KEY_shutdown: | |
a0d0e21e | 3449 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
3450 | |
3451 | case KEY_sin: | |
3452 | UNI(OP_SIN); | |
3453 | ||
3454 | case KEY_sleep: | |
3455 | UNI(OP_SLEEP); | |
3456 | ||
3457 | case KEY_socket: | |
a0d0e21e | 3458 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
3459 | |
3460 | case KEY_socketpair: | |
a0d0e21e | 3461 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
3462 | |
3463 | case KEY_sort: | |
3464 | checkcomma(s,tokenbuf,"subroutine name"); | |
3465 | s = skipspace(s); | |
3466 | if (*s == ';' || *s == ')') /* probably a close */ | |
463ee0b2 LW |
3467 | croak("sort is now a reserved word"); |
3468 | expect = XTERM; | |
a0d0e21e LW |
3469 | s = force_word(s,WORD,TRUE,TRUE,TRUE); |
3470 | LOP(OP_SORT,XREF); | |
79072805 LW |
3471 | |
3472 | case KEY_split: | |
a0d0e21e | 3473 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
3474 | |
3475 | case KEY_sprintf: | |
a0d0e21e | 3476 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
3477 | |
3478 | case KEY_splice: | |
a0d0e21e | 3479 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
3480 | |
3481 | case KEY_sqrt: | |
3482 | UNI(OP_SQRT); | |
3483 | ||
3484 | case KEY_srand: | |
3485 | UNI(OP_SRAND); | |
3486 | ||
3487 | case KEY_stat: | |
3488 | UNI(OP_STAT); | |
3489 | ||
3490 | case KEY_study: | |
3491 | sawstudy++; | |
3492 | UNI(OP_STUDY); | |
3493 | ||
3494 | case KEY_substr: | |
a0d0e21e | 3495 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
3496 | |
3497 | case KEY_format: | |
3498 | case KEY_sub: | |
93a17b20 | 3499 | really_sub: |
79072805 | 3500 | s = skipspace(s); |
4633a7c4 | 3501 | |
463ee0b2 | 3502 | if (isIDFIRST(*s) || *s == '\'' || *s == ':') { |
8903cb82 | 3503 | char tmpbuf[sizeof tokenbuf]; |
4633a7c4 | 3504 | expect = XBLOCK; |
8903cb82 | 3505 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
463ee0b2 LW |
3506 | if (strchr(tmpbuf, ':')) |
3507 | sv_setpv(subname, tmpbuf); | |
3508 | else { | |
3509 | sv_setsv(subname,curstname); | |
8990e307 | 3510 | sv_catpvn(subname,"::",2); |
463ee0b2 LW |
3511 | sv_catpvn(subname,tmpbuf,len); |
3512 | } | |
a0d0e21e | 3513 | s = force_word(s,WORD,FALSE,TRUE,TRUE); |
4633a7c4 | 3514 | s = skipspace(s); |
79072805 | 3515 | } |
4633a7c4 LW |
3516 | else { |
3517 | expect = XTERMBLOCK; | |
79072805 | 3518 | sv_setpv(subname,"?"); |
4633a7c4 LW |
3519 | } |
3520 | ||
3521 | if (tmp == KEY_format) { | |
3522 | s = skipspace(s); | |
3523 | if (*s == '=') | |
3524 | lex_formbrack = lex_brackets + 1; | |
3525 | OPERATOR(FORMAT); | |
3526 | } | |
79072805 | 3527 | |
4633a7c4 LW |
3528 | /* Look for a prototype */ |
3529 | if (*s == '(') { | |
68dc0745 | 3530 | char *p; |
3531 | ||
4633a7c4 LW |
3532 | s = scan_str(s); |
3533 | if (!s) { | |
3534 | if (lex_stuff) | |
3535 | SvREFCNT_dec(lex_stuff); | |
3536 | lex_stuff = Nullsv; | |
3537 | croak("Prototype not terminated"); | |
3538 | } | |
68dc0745 | 3539 | /* strip spaces */ |
3540 | d = SvPVX(lex_stuff); | |
3541 | tmp = 0; | |
3542 | for (p = d; *p; ++p) { | |
3543 | if (!isSPACE(*p)) | |
3544 | d[tmp++] = *p; | |
3545 | } | |
3546 | d[tmp] = '\0'; | |
3547 | SvCUR(lex_stuff) = tmp; | |
3548 | ||
4633a7c4 LW |
3549 | nexttoke++; |
3550 | nextval[1] = nextval[0]; | |
3551 | nexttype[1] = nexttype[0]; | |
3552 | nextval[0].opval = (OP*)newSVOP(OP_CONST, 0, lex_stuff); | |
3553 | nexttype[0] = THING; | |
3554 | if (nexttoke == 1) { | |
3555 | lex_defer = lex_state; | |
3556 | lex_expect = expect; | |
3557 | lex_state = LEX_KNOWNEXT; | |
3558 | } | |
3559 | lex_stuff = Nullsv; | |
3560 | } | |
79072805 | 3561 | |
4633a7c4 LW |
3562 | if (*SvPV(subname,na) == '?') { |
3563 | sv_setpv(subname,"__ANON__"); | |
3564 | TOKEN(ANONSUB); | |
3565 | } | |
3566 | PREBLOCK(SUB); | |
79072805 LW |
3567 | |
3568 | case KEY_system: | |
3569 | set_csh(); | |
a0d0e21e | 3570 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
3571 | |
3572 | case KEY_symlink: | |
a0d0e21e | 3573 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
3574 | |
3575 | case KEY_syscall: | |
a0d0e21e | 3576 | LOP(OP_SYSCALL,XTERM); |
79072805 | 3577 | |
c07a80fd | 3578 | case KEY_sysopen: |
3579 | LOP(OP_SYSOPEN,XTERM); | |
3580 | ||
137443ea | 3581 | case KEY_sysseek: |
3582 | LOP(OP_SYSSEEK,XTERM); | |
3583 | ||
96e4d5b1 | 3584 | case KEY_sysread: |
3585 | LOP(OP_SYSREAD,XTERM); | |
3586 | ||
79072805 | 3587 | case KEY_syswrite: |
a0d0e21e | 3588 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
3589 | |
3590 | case KEY_tr: | |
3591 | s = scan_trans(s); | |
3592 | TERM(sublex_start()); | |
3593 | ||
3594 | case KEY_tell: | |
3595 | UNI(OP_TELL); | |
3596 | ||
3597 | case KEY_telldir: | |
3598 | UNI(OP_TELLDIR); | |
3599 | ||
463ee0b2 | 3600 | case KEY_tie: |
a0d0e21e | 3601 | LOP(OP_TIE,XTERM); |
463ee0b2 | 3602 | |
c07a80fd | 3603 | case KEY_tied: |
3604 | UNI(OP_TIED); | |
3605 | ||
79072805 LW |
3606 | case KEY_time: |
3607 | FUN0(OP_TIME); | |
3608 | ||
3609 | case KEY_times: | |
3610 | FUN0(OP_TMS); | |
3611 | ||
3612 | case KEY_truncate: | |
a0d0e21e | 3613 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
3614 | |
3615 | case KEY_uc: | |
3616 | UNI(OP_UC); | |
3617 | ||
3618 | case KEY_ucfirst: | |
3619 | UNI(OP_UCFIRST); | |
3620 | ||
463ee0b2 LW |
3621 | case KEY_untie: |
3622 | UNI(OP_UNTIE); | |
3623 | ||
79072805 LW |
3624 | case KEY_until: |
3625 | yylval.ival = curcop->cop_line; | |
71be2cbc | 3626 | OPERATOR(UNTIL); |
79072805 LW |
3627 | |
3628 | case KEY_unless: | |
3629 | yylval.ival = curcop->cop_line; | |
71be2cbc | 3630 | OPERATOR(UNLESS); |
79072805 LW |
3631 | |
3632 | case KEY_unlink: | |
a0d0e21e | 3633 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
3634 | |
3635 | case KEY_undef: | |
3636 | UNI(OP_UNDEF); | |
3637 | ||
3638 | case KEY_unpack: | |
a0d0e21e | 3639 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
3640 | |
3641 | case KEY_utime: | |
a0d0e21e | 3642 | LOP(OP_UTIME,XTERM); |
79072805 LW |
3643 | |
3644 | case KEY_umask: | |
748a9306 LW |
3645 | if (dowarn) { |
3646 | for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ; | |
3647 | if (*d != '0' && isDIGIT(*d)) | |
3648 | yywarn("umask: argument is missing initial 0"); | |
3649 | } | |
79072805 LW |
3650 | UNI(OP_UMASK); |
3651 | ||
3652 | case KEY_unshift: | |
a0d0e21e LW |
3653 | LOP(OP_UNSHIFT,XTERM); |
3654 | ||
3655 | case KEY_use: | |
3656 | if (expect != XSTATE) | |
3657 | yyerror("\"use\" not allowed in expression"); | |
89bfa8cd | 3658 | s = skipspace(s); |
3659 | if(isDIGIT(*s)) { | |
3660 | s = force_version(s); | |
3661 | if(*s == ';' || (s = skipspace(s), *s == ';')) { | |
3662 | nextval[nexttoke].opval = Nullop; | |
3663 | force_next(WORD); | |
3664 | } | |
3665 | } | |
3666 | else { | |
3667 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3668 | s = force_version(s); | |
3669 | } | |
a0d0e21e LW |
3670 | yylval.ival = 1; |
3671 | OPERATOR(USE); | |
79072805 LW |
3672 | |
3673 | case KEY_values: | |
3674 | UNI(OP_VALUES); | |
3675 | ||
3676 | case KEY_vec: | |
3677 | sawvec = TRUE; | |
a0d0e21e | 3678 | LOP(OP_VEC,XTERM); |
79072805 LW |
3679 | |
3680 | case KEY_while: | |
3681 | yylval.ival = curcop->cop_line; | |
71be2cbc | 3682 | OPERATOR(WHILE); |
79072805 LW |
3683 | |
3684 | case KEY_warn: | |
a0d0e21e LW |
3685 | hints |= HINT_BLOCK_SCOPE; |
3686 | LOP(OP_WARN,XTERM); | |
79072805 LW |
3687 | |
3688 | case KEY_wait: | |
3689 | FUN0(OP_WAIT); | |
3690 | ||
3691 | case KEY_waitpid: | |
a0d0e21e | 3692 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
3693 | |
3694 | case KEY_wantarray: | |
3695 | FUN0(OP_WANTARRAY); | |
3696 | ||
3697 | case KEY_write: | |
85e6fe83 | 3698 | gv_fetchpv("\f",TRUE, SVt_PV); /* Make sure $^L is defined */ |
79072805 LW |
3699 | UNI(OP_ENTERWRITE); |
3700 | ||
3701 | case KEY_x: | |
3702 | if (expect == XOPERATOR) | |
3703 | Mop(OP_REPEAT); | |
3704 | check_uni(); | |
3705 | goto just_a_word; | |
3706 | ||
a0d0e21e LW |
3707 | case KEY_xor: |
3708 | yylval.ival = OP_XOR; | |
3709 | OPERATOR(OROP); | |
3710 | ||
79072805 LW |
3711 | case KEY_y: |
3712 | s = scan_trans(s); | |
3713 | TERM(sublex_start()); | |
3714 | } | |
3715 | } | |
3716 | } | |
3717 | ||
3718 | I32 | |
3719 | keyword(d, len) | |
3720 | register char *d; | |
3721 | I32 len; | |
3722 | { | |
3723 | switch (*d) { | |
3724 | case '_': | |
3725 | if (d[1] == '_') { | |
a0d0e21e | 3726 | if (strEQ(d,"__FILE__")) return -KEY___FILE__; |
68dc0745 | 3727 | if (strEQ(d,"__LINE__")) return -KEY___LINE__; |
3728 | if (strEQ(d,"__PACKAGE__")) return -KEY___PACKAGE__; | |
e50aee73 | 3729 | if (strEQ(d,"__DATA__")) return KEY___DATA__; |
79072805 LW |
3730 | if (strEQ(d,"__END__")) return KEY___END__; |
3731 | } | |
3732 | break; | |
8990e307 LW |
3733 | case 'A': |
3734 | if (strEQ(d,"AUTOLOAD")) return KEY_AUTOLOAD; | |
3735 | break; | |
79072805 | 3736 | case 'a': |
463ee0b2 LW |
3737 | switch (len) { |
3738 | case 3: | |
a0d0e21e LW |
3739 | if (strEQ(d,"and")) return -KEY_and; |
3740 | if (strEQ(d,"abs")) return -KEY_abs; | |
85e6fe83 | 3741 | break; |
463ee0b2 | 3742 | case 5: |
a0d0e21e LW |
3743 | if (strEQ(d,"alarm")) return -KEY_alarm; |
3744 | if (strEQ(d,"atan2")) return -KEY_atan2; | |
463ee0b2 LW |
3745 | break; |
3746 | case 6: | |
a0d0e21e | 3747 | if (strEQ(d,"accept")) return -KEY_accept; |
463ee0b2 LW |
3748 | break; |
3749 | } | |
79072805 LW |
3750 | break; |
3751 | case 'B': | |
3752 | if (strEQ(d,"BEGIN")) return KEY_BEGIN; | |
93a17b20 | 3753 | break; |
79072805 | 3754 | case 'b': |
a0d0e21e LW |
3755 | if (strEQ(d,"bless")) return -KEY_bless; |
3756 | if (strEQ(d,"bind")) return -KEY_bind; | |
3757 | if (strEQ(d,"binmode")) return -KEY_binmode; | |
3758 | break; | |
3759 | case 'C': | |
3760 | if (strEQ(d,"CORE")) return -KEY_CORE; | |
79072805 LW |
3761 | break; |
3762 | case 'c': | |
3763 | switch (len) { | |
3764 | case 3: | |
a0d0e21e LW |
3765 | if (strEQ(d,"cmp")) return -KEY_cmp; |
3766 | if (strEQ(d,"chr")) return -KEY_chr; | |
3767 | if (strEQ(d,"cos")) return -KEY_cos; | |
79072805 LW |
3768 | break; |
3769 | case 4: | |
3770 | if (strEQ(d,"chop")) return KEY_chop; | |
3771 | break; | |
3772 | case 5: | |
a0d0e21e LW |
3773 | if (strEQ(d,"close")) return -KEY_close; |
3774 | if (strEQ(d,"chdir")) return -KEY_chdir; | |
3775 | if (strEQ(d,"chomp")) return KEY_chomp; | |
3776 | if (strEQ(d,"chmod")) return -KEY_chmod; | |
3777 | if (strEQ(d,"chown")) return -KEY_chown; | |
3778 | if (strEQ(d,"crypt")) return -KEY_crypt; | |
79072805 LW |
3779 | break; |
3780 | case 6: | |
a0d0e21e LW |
3781 | if (strEQ(d,"chroot")) return -KEY_chroot; |
3782 | if (strEQ(d,"caller")) return -KEY_caller; | |
79072805 LW |
3783 | break; |
3784 | case 7: | |
a0d0e21e | 3785 | if (strEQ(d,"connect")) return -KEY_connect; |
79072805 LW |
3786 | break; |
3787 | case 8: | |
a0d0e21e LW |
3788 | if (strEQ(d,"closedir")) return -KEY_closedir; |
3789 | if (strEQ(d,"continue")) return -KEY_continue; | |
79072805 LW |
3790 | break; |
3791 | } | |
3792 | break; | |
ed6116ce LW |
3793 | case 'D': |
3794 | if (strEQ(d,"DESTROY")) return KEY_DESTROY; | |
3795 | break; | |
79072805 LW |
3796 | case 'd': |
3797 | switch (len) { | |
3798 | case 2: | |
3799 | if (strEQ(d,"do")) return KEY_do; | |
3800 | break; | |
3801 | case 3: | |
a0d0e21e | 3802 | if (strEQ(d,"die")) return -KEY_die; |
79072805 LW |
3803 | break; |
3804 | case 4: | |
a0d0e21e | 3805 | if (strEQ(d,"dump")) return -KEY_dump; |
79072805 LW |
3806 | break; |
3807 | case 6: | |
3808 | if (strEQ(d,"delete")) return KEY_delete; | |
3809 | break; | |
3810 | case 7: | |
3811 | if (strEQ(d,"defined")) return KEY_defined; | |
a0d0e21e | 3812 | if (strEQ(d,"dbmopen")) return -KEY_dbmopen; |
79072805 LW |
3813 | break; |
3814 | case 8: | |
a0d0e21e | 3815 | if (strEQ(d,"dbmclose")) return -KEY_dbmclose; |
79072805 LW |
3816 | break; |
3817 | } | |
3818 | break; | |
3819 | case 'E': | |
a0d0e21e | 3820 | if (strEQ(d,"EQ")) { deprecate(d); return -KEY_eq;} |
79072805 LW |
3821 | if (strEQ(d,"END")) return KEY_END; |
3822 | break; | |
3823 | case 'e': | |
3824 | switch (len) { | |
3825 | case 2: | |
a0d0e21e | 3826 | if (strEQ(d,"eq")) return -KEY_eq; |
79072805 LW |
3827 | break; |
3828 | case 3: | |
a0d0e21e LW |
3829 | if (strEQ(d,"eof")) return -KEY_eof; |
3830 | if (strEQ(d,"exp")) return -KEY_exp; | |
79072805 LW |
3831 | break; |
3832 | case 4: | |
3833 | if (strEQ(d,"else")) return KEY_else; | |
a0d0e21e | 3834 | if (strEQ(d,"exit")) return -KEY_exit; |
79072805 | 3835 | if (strEQ(d,"eval")) return KEY_eval; |
a0d0e21e | 3836 | if (strEQ(d,"exec")) return -KEY_exec; |
79072805 LW |
3837 | if (strEQ(d,"each")) return KEY_each; |
3838 | break; | |
3839 | case 5: | |
3840 | if (strEQ(d,"elsif")) return KEY_elsif; | |
3841 | break; | |
a0d0e21e LW |
3842 | case 6: |
3843 | if (strEQ(d,"exists")) return KEY_exists; | |
4633a7c4 | 3844 | if (strEQ(d,"elseif")) warn("elseif should be elsif"); |
a0d0e21e | 3845 | break; |
79072805 | 3846 | case 8: |
a0d0e21e LW |
3847 | if (strEQ(d,"endgrent")) return -KEY_endgrent; |
3848 | if (strEQ(d,"endpwent")) return -KEY_endpwent; | |
79072805 LW |
3849 | break; |
3850 | case 9: | |
a0d0e21e | 3851 | if (strEQ(d,"endnetent")) return -KEY_endnetent; |
79072805 LW |
3852 | break; |
3853 | case 10: | |
a0d0e21e LW |
3854 | if (strEQ(d,"endhostent")) return -KEY_endhostent; |
3855 | if (strEQ(d,"endservent")) return -KEY_endservent; | |
79072805 LW |
3856 | break; |
3857 | case 11: | |
a0d0e21e | 3858 | if (strEQ(d,"endprotoent")) return -KEY_endprotoent; |
79072805 | 3859 | break; |
a687059c | 3860 | } |
a687059c | 3861 | break; |
79072805 LW |
3862 | case 'f': |
3863 | switch (len) { | |
3864 | case 3: | |
3865 | if (strEQ(d,"for")) return KEY_for; | |
3866 | break; | |
3867 | case 4: | |
a0d0e21e | 3868 | if (strEQ(d,"fork")) return -KEY_fork; |
79072805 LW |
3869 | break; |
3870 | case 5: | |
a0d0e21e LW |
3871 | if (strEQ(d,"fcntl")) return -KEY_fcntl; |
3872 | if (strEQ(d,"flock")) return -KEY_flock; | |
79072805 LW |
3873 | break; |
3874 | case 6: | |
3875 | if (strEQ(d,"format")) return KEY_format; | |
a0d0e21e | 3876 | if (strEQ(d,"fileno")) return -KEY_fileno; |
79072805 LW |
3877 | break; |
3878 | case 7: | |
3879 | if (strEQ(d,"foreach")) return KEY_foreach; | |
3880 | break; | |
3881 | case 8: | |
a0d0e21e | 3882 | if (strEQ(d,"formline")) return -KEY_formline; |
79072805 | 3883 | break; |
378cc40b | 3884 | } |
a687059c | 3885 | break; |
79072805 LW |
3886 | case 'G': |
3887 | if (len == 2) { | |
a0d0e21e LW |
3888 | if (strEQ(d,"GT")) { deprecate(d); return -KEY_gt;} |
3889 | if (strEQ(d,"GE")) { deprecate(d); return -KEY_ge;} | |
9f68db38 | 3890 | } |
a687059c | 3891 | break; |
79072805 | 3892 | case 'g': |
a687059c LW |
3893 | if (strnEQ(d,"get",3)) { |
3894 | d += 3; | |
3895 | if (*d == 'p') { | |
79072805 LW |
3896 | switch (len) { |
3897 | case 7: | |
a0d0e21e LW |
3898 | if (strEQ(d,"ppid")) return -KEY_getppid; |
3899 | if (strEQ(d,"pgrp")) return -KEY_getpgrp; | |
79072805 LW |
3900 | break; |
3901 | case 8: | |
a0d0e21e LW |
3902 | if (strEQ(d,"pwent")) return -KEY_getpwent; |
3903 | if (strEQ(d,"pwnam")) return -KEY_getpwnam; | |
3904 | if (strEQ(d,"pwuid")) return -KEY_getpwuid; | |
79072805 LW |
3905 | break; |
3906 | case 11: | |
a0d0e21e LW |
3907 | if (strEQ(d,"peername")) return -KEY_getpeername; |
3908 | if (strEQ(d,"protoent")) return -KEY_getprotoent; | |
3909 | if (strEQ(d,"priority")) return -KEY_getpriority; | |
79072805 LW |
3910 | break; |
3911 | case 14: | |
a0d0e21e | 3912 | if (strEQ(d,"protobyname")) return -KEY_getprotobyname; |
79072805 LW |
3913 | break; |
3914 | case 16: | |
a0d0e21e | 3915 | if (strEQ(d,"protobynumber"))return -KEY_getprotobynumber; |
79072805 LW |
3916 | break; |
3917 | } | |
a687059c LW |
3918 | } |
3919 | else if (*d == 'h') { | |
a0d0e21e LW |
3920 | if (strEQ(d,"hostbyname")) return -KEY_gethostbyname; |
3921 | if (strEQ(d,"hostbyaddr")) return -KEY_gethostbyaddr; | |
3922 | if (strEQ(d,"hostent")) return -KEY_gethostent; | |
a687059c LW |
3923 | } |
3924 | else if (*d == 'n') { | |
a0d0e21e LW |
3925 | if (strEQ(d,"netbyname")) return -KEY_getnetbyname; |
3926 | if (strEQ(d,"netbyaddr")) return -KEY_getnetbyaddr; | |
3927 | if (strEQ(d,"netent")) return -KEY_getnetent; | |
a687059c LW |
3928 | } |
3929 | else if (*d == 's') { | |
a0d0e21e LW |
3930 | if (strEQ(d,"servbyname")) return -KEY_getservbyname; |
3931 | if (strEQ(d,"servbyport")) return -KEY_getservbyport; | |
3932 | if (strEQ(d,"servent")) return -KEY_getservent; | |
3933 | if (strEQ(d,"sockname")) return -KEY_getsockname; | |
3934 | if (strEQ(d,"sockopt")) return -KEY_getsockopt; | |
a687059c LW |
3935 | } |
3936 | else if (*d == 'g') { | |
a0d0e21e LW |
3937 | if (strEQ(d,"grent")) return -KEY_getgrent; |
3938 | if (strEQ(d,"grnam")) return -KEY_getgrnam; | |
3939 | if (strEQ(d,"grgid")) return -KEY_getgrgid; | |
a687059c LW |
3940 | } |
3941 | else if (*d == 'l') { | |
a0d0e21e | 3942 | if (strEQ(d,"login")) return -KEY_getlogin; |
a687059c | 3943 | } |
a0d0e21e | 3944 | else if (strEQ(d,"c")) return -KEY_getc; |
79072805 | 3945 | break; |
a687059c | 3946 | } |
79072805 LW |
3947 | switch (len) { |
3948 | case 2: | |
a0d0e21e LW |
3949 | if (strEQ(d,"gt")) return -KEY_gt; |
3950 | if (strEQ(d,"ge")) return -KEY_ge; | |
79072805 LW |
3951 | break; |
3952 | case 4: | |
3953 | if (strEQ(d,"grep")) return KEY_grep; | |
3954 | if (strEQ(d,"goto")) return KEY_goto; | |
a0d0e21e | 3955 | if (strEQ(d,"glob")) return -KEY_glob; |
79072805 LW |
3956 | break; |
3957 | case 6: | |
a0d0e21e | 3958 | if (strEQ(d,"gmtime")) return -KEY_gmtime; |
79072805 | 3959 | break; |
378cc40b | 3960 | } |
a687059c | 3961 | break; |
79072805 | 3962 | case 'h': |
a0d0e21e | 3963 | if (strEQ(d,"hex")) return -KEY_hex; |
a687059c | 3964 | break; |
79072805 LW |
3965 | case 'i': |
3966 | switch (len) { | |
3967 | case 2: | |
3968 | if (strEQ(d,"if")) return KEY_if; | |
3969 | break; | |
3970 | case 3: | |
a0d0e21e | 3971 | if (strEQ(d,"int")) return -KEY_int; |
79072805 LW |
3972 | break; |
3973 | case 5: | |
a0d0e21e LW |
3974 | if (strEQ(d,"index")) return -KEY_index; |
3975 | if (strEQ(d,"ioctl")) return -KEY_ioctl; | |
79072805 LW |
3976 | break; |
3977 | } | |
a687059c | 3978 | break; |
79072805 | 3979 | case 'j': |
a0d0e21e | 3980 | if (strEQ(d,"join")) return -KEY_join; |
a687059c | 3981 | break; |
79072805 LW |
3982 | case 'k': |
3983 | if (len == 4) { | |
3984 | if (strEQ(d,"keys")) return KEY_keys; | |
a0d0e21e | 3985 | if (strEQ(d,"kill")) return -KEY_kill; |
663a0e37 | 3986 | } |
79072805 LW |
3987 | break; |
3988 | case 'L': | |
3989 | if (len == 2) { | |
a0d0e21e LW |
3990 | if (strEQ(d,"LT")) { deprecate(d); return -KEY_lt;} |
3991 | if (strEQ(d,"LE")) { deprecate(d); return -KEY_le;} | |
378cc40b | 3992 | } |
79072805 LW |
3993 | break; |
3994 | case 'l': | |
3995 | switch (len) { | |
3996 | case 2: | |
a0d0e21e LW |
3997 | if (strEQ(d,"lt")) return -KEY_lt; |
3998 | if (strEQ(d,"le")) return -KEY_le; | |
3999 | if (strEQ(d,"lc")) return -KEY_lc; | |
79072805 LW |
4000 | break; |
4001 | case 3: | |
a0d0e21e | 4002 | if (strEQ(d,"log")) return -KEY_log; |
79072805 LW |
4003 | break; |
4004 | case 4: | |
4005 | if (strEQ(d,"last")) return KEY_last; | |
a0d0e21e | 4006 | if (strEQ(d,"link")) return -KEY_link; |
395c3793 | 4007 | break; |
79072805 LW |
4008 | case 5: |
4009 | if (strEQ(d,"local")) return KEY_local; | |
a0d0e21e | 4010 | if (strEQ(d,"lstat")) return -KEY_lstat; |
79072805 LW |
4011 | break; |
4012 | case 6: | |
a0d0e21e LW |
4013 | if (strEQ(d,"length")) return -KEY_length; |
4014 | if (strEQ(d,"listen")) return -KEY_listen; | |
79072805 LW |
4015 | break; |
4016 | case 7: | |
a0d0e21e | 4017 | if (strEQ(d,"lcfirst")) return -KEY_lcfirst; |
79072805 LW |
4018 | break; |
4019 | case 9: | |
a0d0e21e | 4020 | if (strEQ(d,"localtime")) return -KEY_localtime; |
395c3793 LW |
4021 | break; |
4022 | } | |
a687059c | 4023 | break; |
79072805 LW |
4024 | case 'm': |
4025 | switch (len) { | |
4026 | case 1: return KEY_m; | |
93a17b20 LW |
4027 | case 2: |
4028 | if (strEQ(d,"my")) return KEY_my; | |
4029 | break; | |
a0d0e21e LW |
4030 | case 3: |
4031 | if (strEQ(d,"map")) return KEY_map; | |
4032 | break; | |
79072805 | 4033 | case 5: |
a0d0e21e | 4034 | if (strEQ(d,"mkdir")) return -KEY_mkdir; |
79072805 LW |
4035 | break; |
4036 | case 6: | |
a0d0e21e LW |
4037 | if (strEQ(d,"msgctl")) return -KEY_msgctl; |
4038 | if (strEQ(d,"msgget")) return -KEY_msgget; | |
4039 | if (strEQ(d,"msgrcv")) return -KEY_msgrcv; | |
4040 | if (strEQ(d,"msgsnd")) return -KEY_msgsnd; | |
79072805 LW |
4041 | break; |
4042 | } | |
a687059c | 4043 | break; |
79072805 | 4044 | case 'N': |
a0d0e21e | 4045 | if (strEQ(d,"NE")) { deprecate(d); return -KEY_ne;} |
a687059c | 4046 | break; |
79072805 LW |
4047 | case 'n': |
4048 | if (strEQ(d,"next")) return KEY_next; | |
a0d0e21e LW |
4049 | if (strEQ(d,"ne")) return -KEY_ne; |
4050 | if (strEQ(d,"not")) return -KEY_not; | |
4051 | if (strEQ(d,"no")) return KEY_no; | |
a687059c | 4052 | break; |
79072805 LW |
4053 | case 'o': |
4054 | switch (len) { | |
463ee0b2 | 4055 | case 2: |
a0d0e21e | 4056 | if (strEQ(d,"or")) return -KEY_or; |
463ee0b2 | 4057 | break; |
79072805 | 4058 | case 3: |
a0d0e21e LW |
4059 | if (strEQ(d,"ord")) return -KEY_ord; |
4060 | if (strEQ(d,"oct")) return -KEY_oct; | |
79072805 LW |
4061 | break; |
4062 | case 4: | |
a0d0e21e | 4063 | if (strEQ(d,"open")) return -KEY_open; |
79072805 LW |
4064 | break; |
4065 | case 7: | |
a0d0e21e | 4066 | if (strEQ(d,"opendir")) return -KEY_opendir; |
79072805 | 4067 | break; |
fe14fcc3 | 4068 | } |
a687059c | 4069 | break; |
79072805 LW |
4070 | case 'p': |
4071 | switch (len) { | |
4072 | case 3: | |
4073 | if (strEQ(d,"pop")) return KEY_pop; | |
a0d0e21e | 4074 | if (strEQ(d,"pos")) return KEY_pos; |
79072805 LW |
4075 | break; |
4076 | case 4: | |
4077 | if (strEQ(d,"push")) return KEY_push; | |
a0d0e21e LW |
4078 | if (strEQ(d,"pack")) return -KEY_pack; |
4079 | if (strEQ(d,"pipe")) return -KEY_pipe; | |
79072805 LW |
4080 | break; |
4081 | case 5: | |
4082 | if (strEQ(d,"print")) return KEY_print; | |
4083 | break; | |
4084 | case 6: | |
4085 | if (strEQ(d,"printf")) return KEY_printf; | |
4086 | break; | |
4087 | case 7: | |
4088 | if (strEQ(d,"package")) return KEY_package; | |
4089 | break; | |
c07a80fd | 4090 | case 9: |
4091 | if (strEQ(d,"prototype")) return KEY_prototype; | |
663a0e37 | 4092 | } |
79072805 LW |
4093 | break; |
4094 | case 'q': | |
4095 | if (len <= 2) { | |
4096 | if (strEQ(d,"q")) return KEY_q; | |
4097 | if (strEQ(d,"qq")) return KEY_qq; | |
8990e307 | 4098 | if (strEQ(d,"qw")) return KEY_qw; |
79072805 | 4099 | if (strEQ(d,"qx")) return KEY_qx; |
663a0e37 | 4100 | } |
a0d0e21e | 4101 | else if (strEQ(d,"quotemeta")) return -KEY_quotemeta; |
79072805 LW |
4102 | break; |
4103 | case 'r': | |
4104 | switch (len) { | |
4105 | case 3: | |
a0d0e21e | 4106 | if (strEQ(d,"ref")) return -KEY_ref; |
79072805 LW |
4107 | break; |
4108 | case 4: | |
a0d0e21e LW |
4109 | if (strEQ(d,"read")) return -KEY_read; |
4110 | if (strEQ(d,"rand")) return -KEY_rand; | |
4111 | if (strEQ(d,"recv")) return -KEY_recv; | |
79072805 LW |
4112 | if (strEQ(d,"redo")) return KEY_redo; |
4113 | break; | |
4114 | case 5: | |
a0d0e21e LW |
4115 | if (strEQ(d,"rmdir")) return -KEY_rmdir; |
4116 | if (strEQ(d,"reset")) return -KEY_reset; | |
79072805 LW |
4117 | break; |
4118 | case 6: | |
4119 | if (strEQ(d,"return")) return KEY_return; | |
a0d0e21e LW |
4120 | if (strEQ(d,"rename")) return -KEY_rename; |
4121 | if (strEQ(d,"rindex")) return -KEY_rindex; | |
79072805 LW |
4122 | break; |
4123 | case 7: | |
a0d0e21e LW |
4124 | if (strEQ(d,"require")) return -KEY_require; |
4125 | if (strEQ(d,"reverse")) return -KEY_reverse; | |
4126 | if (strEQ(d,"readdir")) return -KEY_readdir; | |
79072805 LW |
4127 | break; |
4128 | case 8: | |
a0d0e21e LW |
4129 | if (strEQ(d,"readlink")) return -KEY_readlink; |
4130 | if (strEQ(d,"readline")) return -KEY_readline; | |
4131 | if (strEQ(d,"readpipe")) return -KEY_readpipe; | |
79072805 LW |
4132 | break; |
4133 | case 9: | |
a0d0e21e | 4134 | if (strEQ(d,"rewinddir")) return -KEY_rewinddir; |
79072805 | 4135 | break; |
a687059c | 4136 | } |
79072805 LW |
4137 | break; |
4138 | case 's': | |
a687059c | 4139 | switch (d[1]) { |
79072805 | 4140 | case 0: return KEY_s; |
a687059c | 4141 | case 'c': |
79072805 | 4142 | if (strEQ(d,"scalar")) return KEY_scalar; |
a687059c LW |
4143 | break; |
4144 | case 'e': | |
79072805 LW |
4145 | switch (len) { |
4146 | case 4: | |
a0d0e21e LW |
4147 | if (strEQ(d,"seek")) return -KEY_seek; |
4148 | if (strEQ(d,"send")) return -KEY_send; | |
79072805 LW |
4149 | break; |
4150 | case 5: | |
a0d0e21e | 4151 | if (strEQ(d,"semop")) return -KEY_semop; |
79072805 LW |
4152 | break; |
4153 | case 6: | |
a0d0e21e LW |
4154 | if (strEQ(d,"select")) return -KEY_select; |
4155 | if (strEQ(d,"semctl")) return -KEY_semctl; | |
4156 | if (strEQ(d,"semget")) return -KEY_semget; | |
79072805 LW |
4157 | break; |
4158 | case 7: | |
a0d0e21e LW |
4159 | if (strEQ(d,"setpgrp")) return -KEY_setpgrp; |
4160 | if (strEQ(d,"seekdir")) return -KEY_seekdir; | |
79072805 LW |
4161 | break; |
4162 | case 8: | |
a0d0e21e LW |
4163 | if (strEQ(d,"setpwent")) return -KEY_setpwent; |
4164 | if (strEQ(d,"setgrent")) return -KEY_setgrent; | |
79072805 LW |
4165 | break; |
4166 | case 9: | |
a0d0e21e | 4167 | if (strEQ(d,"setnetent")) return -KEY_setnetent; |
79072805 LW |
4168 | break; |
4169 | case 10: | |
a0d0e21e LW |
4170 | if (strEQ(d,"setsockopt")) return -KEY_setsockopt; |
4171 | if (strEQ(d,"sethostent")) return -KEY_sethostent; | |
4172 | if (strEQ(d,"setservent")) return -KEY_setservent; | |
79072805 LW |
4173 | break; |
4174 | case 11: | |
a0d0e21e LW |
4175 | if (strEQ(d,"setpriority")) return -KEY_setpriority; |
4176 | if (strEQ(d,"setprotoent")) return -KEY_setprotoent; | |
79072805 LW |
4177 | break; |
4178 | } | |
a687059c LW |
4179 | break; |
4180 | case 'h': | |
79072805 LW |
4181 | switch (len) { |
4182 | case 5: | |
4183 | if (strEQ(d,"shift")) return KEY_shift; | |
4184 | break; | |
4185 | case 6: | |
a0d0e21e LW |
4186 | if (strEQ(d,"shmctl")) return -KEY_shmctl; |
4187 | if (strEQ(d,"shmget")) return -KEY_shmget; | |
79072805 LW |
4188 | break; |
4189 | case 7: | |
a0d0e21e | 4190 | if (strEQ(d,"shmread")) return -KEY_shmread; |
79072805 LW |
4191 | break; |
4192 | case 8: | |
a0d0e21e LW |
4193 | if (strEQ(d,"shmwrite")) return -KEY_shmwrite; |
4194 | if (strEQ(d,"shutdown")) return -KEY_shutdown; | |
79072805 LW |
4195 | break; |
4196 | } | |
a687059c LW |
4197 | break; |
4198 | case 'i': | |
a0d0e21e | 4199 | if (strEQ(d,"sin")) return -KEY_sin; |
a687059c LW |
4200 | break; |
4201 | case 'l': | |
a0d0e21e | 4202 | if (strEQ(d,"sleep")) return -KEY_sleep; |
a687059c LW |
4203 | break; |
4204 | case 'o': | |
79072805 | 4205 | if (strEQ(d,"sort")) return KEY_sort; |
a0d0e21e LW |
4206 | if (strEQ(d,"socket")) return -KEY_socket; |
4207 | if (strEQ(d,"socketpair")) return -KEY_socketpair; | |
a687059c LW |
4208 | break; |
4209 | case 'p': | |
79072805 | 4210 | if (strEQ(d,"split")) return KEY_split; |
a0d0e21e | 4211 | if (strEQ(d,"sprintf")) return -KEY_sprintf; |
79072805 | 4212 | if (strEQ(d,"splice")) return KEY_splice; |
a687059c LW |
4213 | break; |
4214 | case 'q': | |
a0d0e21e | 4215 | if (strEQ(d,"sqrt")) return -KEY_sqrt; |
a687059c LW |
4216 | break; |
4217 | case 'r': | |
a0d0e21e | 4218 | if (strEQ(d,"srand")) return -KEY_srand; |
a687059c LW |
4219 | break; |
4220 | case 't': | |
a0d0e21e | 4221 | if (strEQ(d,"stat")) return -KEY_stat; |
79072805 | 4222 | if (strEQ(d,"study")) return KEY_study; |
a687059c LW |
4223 | break; |
4224 | case 'u': | |
a0d0e21e | 4225 | if (strEQ(d,"substr")) return -KEY_substr; |
79072805 | 4226 | if (strEQ(d,"sub")) return KEY_sub; |
a687059c LW |
4227 | break; |
4228 | case 'y': | |
79072805 LW |
4229 | switch (len) { |
4230 | case 6: | |
a0d0e21e | 4231 | if (strEQ(d,"system")) return -KEY_system; |
79072805 LW |
4232 | break; |
4233 | case 7: | |
a0d0e21e LW |
4234 | if (strEQ(d,"symlink")) return -KEY_symlink; |
4235 | if (strEQ(d,"syscall")) return -KEY_syscall; | |
137443ea | 4236 | if (strEQ(d,"sysopen")) return -KEY_sysopen; |
4237 | if (strEQ(d,"sysread")) return -KEY_sysread; | |
4238 | if (strEQ(d,"sysseek")) return -KEY_sysseek; | |
79072805 LW |
4239 | break; |
4240 | case 8: | |
a0d0e21e | 4241 | if (strEQ(d,"syswrite")) return -KEY_syswrite; |
79072805 | 4242 | break; |
a687059c | 4243 | } |
a687059c LW |
4244 | break; |
4245 | } | |
4246 | break; | |
79072805 LW |
4247 | case 't': |
4248 | switch (len) { | |
4249 | case 2: | |
4250 | if (strEQ(d,"tr")) return KEY_tr; | |
4251 | break; | |
463ee0b2 LW |
4252 | case 3: |
4253 | if (strEQ(d,"tie")) return KEY_tie; | |
4254 | break; | |
79072805 | 4255 | case 4: |
a0d0e21e | 4256 | if (strEQ(d,"tell")) return -KEY_tell; |
c07a80fd | 4257 | if (strEQ(d,"tied")) return KEY_tied; |
a0d0e21e | 4258 | if (strEQ(d,"time")) return -KEY_time; |
79072805 LW |
4259 | break; |
4260 | case 5: | |
a0d0e21e | 4261 | if (strEQ(d,"times")) return -KEY_times; |
79072805 LW |
4262 | break; |
4263 | case 7: | |
a0d0e21e | 4264 | if (strEQ(d,"telldir")) return -KEY_telldir; |
79072805 LW |
4265 | break; |
4266 | case 8: | |
a0d0e21e | 4267 | if (strEQ(d,"truncate")) return -KEY_truncate; |
79072805 | 4268 | break; |
378cc40b | 4269 | } |
a687059c | 4270 | break; |
79072805 LW |
4271 | case 'u': |
4272 | switch (len) { | |
4273 | case 2: | |
a0d0e21e LW |
4274 | if (strEQ(d,"uc")) return -KEY_uc; |
4275 | break; | |
4276 | case 3: | |
4277 | if (strEQ(d,"use")) return KEY_use; | |
79072805 LW |
4278 | break; |
4279 | case 5: | |
4280 | if (strEQ(d,"undef")) return KEY_undef; | |
4281 | if (strEQ(d,"until")) return KEY_until; | |
463ee0b2 | 4282 | if (strEQ(d,"untie")) return KEY_untie; |
a0d0e21e LW |
4283 | if (strEQ(d,"utime")) return -KEY_utime; |
4284 | if (strEQ(d,"umask")) return -KEY_umask; | |
79072805 LW |
4285 | break; |
4286 | case 6: | |
4287 | if (strEQ(d,"unless")) return KEY_unless; | |
a0d0e21e LW |
4288 | if (strEQ(d,"unpack")) return -KEY_unpack; |
4289 | if (strEQ(d,"unlink")) return -KEY_unlink; | |
79072805 LW |
4290 | break; |
4291 | case 7: | |
4292 | if (strEQ(d,"unshift")) return KEY_unshift; | |
a0d0e21e | 4293 | if (strEQ(d,"ucfirst")) return -KEY_ucfirst; |
79072805 | 4294 | break; |
a687059c LW |
4295 | } |
4296 | break; | |
79072805 | 4297 | case 'v': |
a0d0e21e LW |
4298 | if (strEQ(d,"values")) return -KEY_values; |
4299 | if (strEQ(d,"vec")) return -KEY_vec; | |
a687059c | 4300 | break; |
79072805 LW |
4301 | case 'w': |
4302 | switch (len) { | |
4303 | case 4: | |
a0d0e21e LW |
4304 | if (strEQ(d,"warn")) return -KEY_warn; |
4305 | if (strEQ(d,"wait")) return -KEY_wait; | |
79072805 LW |
4306 | break; |
4307 | case 5: | |
4308 | if (strEQ(d,"while")) return KEY_while; | |
a0d0e21e | 4309 | if (strEQ(d,"write")) return -KEY_write; |
79072805 LW |
4310 | break; |
4311 | case 7: | |
a0d0e21e | 4312 | if (strEQ(d,"waitpid")) return -KEY_waitpid; |
79072805 LW |
4313 | break; |
4314 | case 9: | |
a0d0e21e | 4315 | if (strEQ(d,"wantarray")) return -KEY_wantarray; |
79072805 | 4316 | break; |
2f3197b3 | 4317 | } |
a687059c | 4318 | break; |
79072805 | 4319 | case 'x': |
a0d0e21e LW |
4320 | if (len == 1) return -KEY_x; |
4321 | if (strEQ(d,"xor")) return -KEY_xor; | |
a687059c | 4322 | break; |
79072805 LW |
4323 | case 'y': |
4324 | if (len == 1) return KEY_y; | |
4325 | break; | |
4326 | case 'z': | |
a687059c LW |
4327 | break; |
4328 | } | |
79072805 | 4329 | return 0; |
a687059c LW |
4330 | } |
4331 | ||
8990e307 | 4332 | static void |
2f3197b3 | 4333 | checkcomma(s,name,what) |
a687059c | 4334 | register char *s; |
2f3197b3 | 4335 | char *name; |
a687059c LW |
4336 | char *what; |
4337 | { | |
2f3197b3 LW |
4338 | char *w; |
4339 | ||
463ee0b2 | 4340 | if (dowarn && *s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
a0d0e21e LW |
4341 | int level = 1; |
4342 | for (w = s+2; *w && level; w++) { | |
4343 | if (*w == '(') | |
4344 | ++level; | |
4345 | else if (*w == ')') | |
4346 | --level; | |
4347 | } | |
4348 | if (*w) | |
4349 | for (; *w && isSPACE(*w); w++) ; | |
4350 | if (!*w || !strchr(";|})]oa!=", *w)) /* an advisory hack only... */ | |
2f3197b3 LW |
4351 | warn("%s (...) interpreted as function",name); |
4352 | } | |
4353 | while (s < bufend && isSPACE(*s)) | |
4354 | s++; | |
a687059c LW |
4355 | if (*s == '(') |
4356 | s++; | |
de3bb511 | 4357 | while (s < bufend && isSPACE(*s)) |
a687059c | 4358 | s++; |
79072805 | 4359 | if (isIDFIRST(*s)) { |
2f3197b3 | 4360 | w = s++; |
de3bb511 | 4361 | while (isALNUM(*s)) |
a687059c | 4362 | s++; |
de3bb511 | 4363 | while (s < bufend && isSPACE(*s)) |
a687059c | 4364 | s++; |
e929a76b | 4365 | if (*s == ',') { |
463ee0b2 | 4366 | int kw; |
e929a76b | 4367 | *s = '\0'; |
4633a7c4 | 4368 | kw = keyword(w, s - w) || perl_get_cv(w, FALSE) != 0; |
e929a76b | 4369 | *s = ','; |
463ee0b2 | 4370 | if (kw) |
e929a76b | 4371 | return; |
463ee0b2 LW |
4372 | croak("No comma allowed after %s", what); |
4373 | } | |
4374 | } | |
4375 | } | |
4376 | ||
8990e307 | 4377 | static char * |
8903cb82 | 4378 | scan_word(s, dest, destlen, allow_package, slp) |
463ee0b2 LW |
4379 | register char *s; |
4380 | char *dest; | |
8903cb82 | 4381 | STRLEN destlen; |
463ee0b2 LW |
4382 | int allow_package; |
4383 | STRLEN *slp; | |
4384 | { | |
4385 | register char *d = dest; | |
8903cb82 | 4386 | register char *e = d + destlen - 3; /* two-character token, ending NUL */ |
463ee0b2 | 4387 | for (;;) { |
8903cb82 | 4388 | if (d >= e) |
fc36a67e | 4389 | croak(ident_too_long); |
463ee0b2 LW |
4390 | if (isALNUM(*s)) |
4391 | *d++ = *s++; | |
4392 | else if (*s == '\'' && allow_package && isIDFIRST(s[1])) { | |
4393 | *d++ = ':'; | |
4394 | *d++ = ':'; | |
4395 | s++; | |
4396 | } | |
4397 | else if (*s == ':' && s[1] == ':' && allow_package && isIDFIRST(s[2])) { | |
4398 | *d++ = *s++; | |
4399 | *d++ = *s++; | |
4400 | } | |
4401 | else { | |
4402 | *d = '\0'; | |
4403 | *slp = d - dest; | |
4404 | return s; | |
e929a76b | 4405 | } |
378cc40b LW |
4406 | } |
4407 | } | |
4408 | ||
8990e307 | 4409 | static char * |
8903cb82 | 4410 | scan_ident(s, send, dest, destlen, ck_uni) |
378cc40b | 4411 | register char *s; |
a687059c | 4412 | register char *send; |
378cc40b | 4413 | char *dest; |
8903cb82 | 4414 | STRLEN destlen; |
79072805 | 4415 | I32 ck_uni; |
378cc40b LW |
4416 | { |
4417 | register char *d; | |
8903cb82 | 4418 | register char *e; |
79072805 | 4419 | char *bracket = 0; |
748a9306 | 4420 | char funny = *s++; |
378cc40b | 4421 | |
79072805 LW |
4422 | if (lex_brackets == 0) |
4423 | lex_fakebrack = 0; | |
a0d0e21e LW |
4424 | if (isSPACE(*s)) |
4425 | s = skipspace(s); | |
378cc40b | 4426 | d = dest; |
8903cb82 | 4427 | e = d + destlen - 3; /* two-character token, ending NUL */ |
de3bb511 | 4428 | if (isDIGIT(*s)) { |
8903cb82 | 4429 | while (isDIGIT(*s)) { |
4430 | if (d >= e) | |
fc36a67e | 4431 | croak(ident_too_long); |
378cc40b | 4432 | *d++ = *s++; |
8903cb82 | 4433 | } |
378cc40b LW |
4434 | } |
4435 | else { | |
463ee0b2 | 4436 | for (;;) { |
8903cb82 | 4437 | if (d >= e) |
fc36a67e | 4438 | croak(ident_too_long); |
463ee0b2 LW |
4439 | if (isALNUM(*s)) |
4440 | *d++ = *s++; | |
4441 | else if (*s == '\'' && isIDFIRST(s[1])) { | |
4442 | *d++ = ':'; | |
4443 | *d++ = ':'; | |
4444 | s++; | |
4445 | } | |
a0d0e21e | 4446 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
4447 | *d++ = *s++; |
4448 | *d++ = *s++; | |
4449 | } | |
4450 | else | |
4451 | break; | |
4452 | } | |
378cc40b LW |
4453 | } |
4454 | *d = '\0'; | |
4455 | d = dest; | |
79072805 LW |
4456 | if (*d) { |
4457 | if (lex_state != LEX_NORMAL) | |
4458 | lex_state = LEX_INTERPENDMAYBE; | |
4459 | return s; | |
378cc40b | 4460 | } |
748a9306 | 4461 | if (*s == '$' && s[1] && |
ff0cee69 | 4462 | (isALNUM(s[1]) || strchr("${", s[1]) || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 4463 | { |
4464 | if (isDIGIT(s[1]) && lex_state == LEX_INTERPNORMAL) | |
4465 | deprecate("\"$$<digit>\" to mean \"${$}<digit>\""); | |
4466 | else | |
4467 | return s; | |
4468 | } | |
79072805 LW |
4469 | if (*s == '{') { |
4470 | bracket = s; | |
4471 | s++; | |
4472 | } | |
4473 | else if (ck_uni) | |
4474 | check_uni(); | |
93a17b20 | 4475 | if (s < send) |
79072805 LW |
4476 | *d = *s++; |
4477 | d[1] = '\0'; | |
748a9306 | 4478 | if (*d == '^' && *s && (isUPPER(*s) || strchr("[\\]^_?", *s))) { |
bbce6d69 | 4479 | *d = toCTRL(*s); |
4480 | s++; | |
de3bb511 | 4481 | } |
79072805 | 4482 | if (bracket) { |
748a9306 | 4483 | if (isSPACE(s[-1])) { |
fa83b5b6 | 4484 | while (s < send) { |
4485 | char ch = *s++; | |
4486 | if (ch != ' ' && ch != '\t') { | |
4487 | *d = ch; | |
4488 | break; | |
4489 | } | |
4490 | } | |
748a9306 | 4491 | } |
ff68c719 | 4492 | if (isIDFIRST(*d)) { |
79072805 | 4493 | d++; |
748a9306 | 4494 | while (isALNUM(*s) || *s == ':') |
79072805 LW |
4495 | *d++ = *s++; |
4496 | *d = '\0'; | |
748a9306 | 4497 | while (s < send && (*s == ' ' || *s == '\t')) s++; |
ff68c719 | 4498 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
748a9306 LW |
4499 | if (dowarn && keyword(dest, d - dest)) { |
4500 | char *brack = *s == '[' ? "[...]" : "{...}"; | |
4501 | warn("Ambiguous use of %c{%s%s} resolved to %c%s%s", | |
4502 | funny, dest, brack, funny, dest, brack); | |
4503 | } | |
4504 | lex_fakebrack = lex_brackets+1; | |
79072805 | 4505 | bracket++; |
a0d0e21e | 4506 | lex_brackstack[lex_brackets++] = XOPERATOR; |
79072805 LW |
4507 | return s; |
4508 | } | |
4509 | } | |
4510 | if (*s == '}') { | |
4511 | s++; | |
4512 | if (lex_state == LEX_INTERPNORMAL && !lex_brackets) | |
4513 | lex_state = LEX_INTERPEND; | |
748a9306 LW |
4514 | if (funny == '#') |
4515 | funny = '@'; | |
4516 | if (dowarn && | |
4517 | (keyword(dest, d - dest) || perl_get_cv(dest, FALSE))) | |
4518 | warn("Ambiguous use of %c{%s} resolved to %c%s", | |
4519 | funny, dest, funny, dest); | |
79072805 LW |
4520 | } |
4521 | else { | |
4522 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 4523 | *dest = '\0'; |
79072805 LW |
4524 | } |
4525 | } | |
4526 | else if (lex_state == LEX_INTERPNORMAL && !lex_brackets && !intuit_more(s)) | |
4527 | lex_state = LEX_INTERPEND; | |
378cc40b LW |
4528 | return s; |
4529 | } | |
4530 | ||
a0d0e21e LW |
4531 | void pmflag(pmfl,ch) |
4532 | U16* pmfl; | |
4533 | int ch; | |
4534 | { | |
bbce6d69 | 4535 | if (ch == 'i') |
a0d0e21e | 4536 | *pmfl |= PMf_FOLD; |
a0d0e21e LW |
4537 | else if (ch == 'g') |
4538 | *pmfl |= PMf_GLOBAL; | |
c90c0ff4 | 4539 | else if (ch == 'c') |
4540 | *pmfl |= PMf_CONTINUE; | |
a0d0e21e LW |
4541 | else if (ch == 'o') |
4542 | *pmfl |= PMf_KEEP; | |
4543 | else if (ch == 'm') | |
4544 | *pmfl |= PMf_MULTILINE; | |
4545 | else if (ch == 's') | |
4546 | *pmfl |= PMf_SINGLELINE; | |
4547 | else if (ch == 'x') | |
4548 | *pmfl |= PMf_EXTENDED; | |
4549 | } | |
378cc40b | 4550 | |
8990e307 | 4551 | static char * |
79072805 LW |
4552 | scan_pat(start) |
4553 | char *start; | |
378cc40b | 4554 | { |
79072805 LW |
4555 | PMOP *pm; |
4556 | char *s; | |
378cc40b | 4557 | |
79072805 LW |
4558 | s = scan_str(start); |
4559 | if (!s) { | |
4560 | if (lex_stuff) | |
8990e307 | 4561 | SvREFCNT_dec(lex_stuff); |
79072805 | 4562 | lex_stuff = Nullsv; |
463ee0b2 | 4563 | croak("Search pattern not terminated"); |
378cc40b | 4564 | } |
bbce6d69 | 4565 | |
79072805 | 4566 | pm = (PMOP*)newPMOP(OP_MATCH, 0); |
a0d0e21e | 4567 | if (multi_open == '?') |
79072805 | 4568 | pm->op_pmflags |= PMf_ONCE; |
c90c0ff4 | 4569 | while (*s && strchr("iogcmsx", *s)) |
a0d0e21e | 4570 | pmflag(&pm->op_pmflags,*s++); |
4633a7c4 | 4571 | pm->op_pmpermflags = pm->op_pmflags; |
bbce6d69 | 4572 | |
79072805 LW |
4573 | lex_op = (OP*)pm; |
4574 | yylval.ival = OP_MATCH; | |
378cc40b LW |
4575 | return s; |
4576 | } | |
4577 | ||
8990e307 | 4578 | static char * |
79072805 | 4579 | scan_subst(start) |
2f3197b3 | 4580 | char *start; |
79072805 | 4581 | { |
a0d0e21e | 4582 | register char *s; |
79072805 | 4583 | register PMOP *pm; |
4fdae800 | 4584 | I32 first_start; |
79072805 LW |
4585 | I32 es = 0; |
4586 | ||
79072805 LW |
4587 | yylval.ival = OP_NULL; |
4588 | ||
a0d0e21e | 4589 | s = scan_str(start); |
79072805 LW |
4590 | |
4591 | if (!s) { | |
4592 | if (lex_stuff) | |
8990e307 | 4593 | SvREFCNT_dec(lex_stuff); |
79072805 | 4594 | lex_stuff = Nullsv; |
463ee0b2 | 4595 | croak("Substitution pattern not terminated"); |
a687059c | 4596 | } |
79072805 | 4597 | |
a0d0e21e | 4598 | if (s[-1] == multi_open) |
79072805 LW |
4599 | s--; |
4600 | ||
4fdae800 | 4601 | first_start = multi_start; |
79072805 LW |
4602 | s = scan_str(s); |
4603 | if (!s) { | |
4604 | if (lex_stuff) | |
8990e307 | 4605 | SvREFCNT_dec(lex_stuff); |
79072805 LW |
4606 | lex_stuff = Nullsv; |
4607 | if (lex_repl) | |
8990e307 | 4608 | SvREFCNT_dec(lex_repl); |
79072805 | 4609 | lex_repl = Nullsv; |
463ee0b2 | 4610 | croak("Substitution replacement not terminated"); |
a687059c | 4611 | } |
4fdae800 | 4612 | multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 4613 | |
79072805 | 4614 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
c90c0ff4 | 4615 | while (*s && strchr("iogcmsex", *s)) { |
a687059c LW |
4616 | if (*s == 'e') { |
4617 | s++; | |
2f3197b3 | 4618 | es++; |
a687059c | 4619 | } |
a0d0e21e LW |
4620 | else |
4621 | pmflag(&pm->op_pmflags,*s++); | |
378cc40b | 4622 | } |
79072805 LW |
4623 | |
4624 | if (es) { | |
4625 | SV *repl; | |
4626 | pm->op_pmflags |= PMf_EVAL; | |
463ee0b2 LW |
4627 | repl = newSVpv("",0); |
4628 | while (es-- > 0) | |
a0d0e21e | 4629 | sv_catpv(repl, es ? "eval " : "do "); |
79072805 LW |
4630 | sv_catpvn(repl, "{ ", 2); |
4631 | sv_catsv(repl, lex_repl); | |
4632 | sv_catpvn(repl, " };", 2); | |
4633 | SvCOMPILED_on(repl); | |
8990e307 | 4634 | SvREFCNT_dec(lex_repl); |
79072805 | 4635 | lex_repl = repl; |
378cc40b | 4636 | } |
79072805 | 4637 | |
4633a7c4 | 4638 | pm->op_pmpermflags = pm->op_pmflags; |
79072805 LW |
4639 | lex_op = (OP*)pm; |
4640 | yylval.ival = OP_SUBST; | |
378cc40b LW |
4641 | return s; |
4642 | } | |
4643 | ||
1462b684 | 4644 | void |
79072805 LW |
4645 | hoistmust(pm) |
4646 | register PMOP *pm; | |
378cc40b | 4647 | { |
79072805 LW |
4648 | if (!pm->op_pmshort && pm->op_pmregexp->regstart && |
4649 | (!pm->op_pmregexp->regmust || pm->op_pmregexp->reganch & ROPT_ANCH) | |
d48672a2 | 4650 | ) { |
79072805 LW |
4651 | if (!(pm->op_pmregexp->reganch & ROPT_ANCH)) |
4652 | pm->op_pmflags |= PMf_SCANFIRST; | |
8990e307 | 4653 | pm->op_pmshort = SvREFCNT_inc(pm->op_pmregexp->regstart); |
748a9306 | 4654 | pm->op_pmslen = SvCUR(pm->op_pmshort); |
d48672a2 | 4655 | } |
79072805 LW |
4656 | else if (pm->op_pmregexp->regmust) {/* is there a better short-circuit? */ |
4657 | if (pm->op_pmshort && | |
4658 | sv_eq(pm->op_pmshort,pm->op_pmregexp->regmust)) | |
a687059c | 4659 | { |
79072805 | 4660 | if (pm->op_pmflags & PMf_SCANFIRST) { |
8990e307 | 4661 | SvREFCNT_dec(pm->op_pmshort); |
79072805 | 4662 | pm->op_pmshort = Nullsv; |
378cc40b LW |
4663 | } |
4664 | else { | |
8990e307 | 4665 | SvREFCNT_dec(pm->op_pmregexp->regmust); |
79072805 | 4666 | pm->op_pmregexp->regmust = Nullsv; |
378cc40b LW |
4667 | return; |
4668 | } | |
4669 | } | |
774d564b | 4670 | /* promote the better string */ |
5cd24f17 | 4671 | if ((!pm->op_pmshort && |
4672 | !(pm->op_pmregexp->reganch & ROPT_ANCH_GPOS)) || | |
774d564b | 4673 | ((pm->op_pmflags & PMf_SCANFIRST) && |
4674 | (SvCUR(pm->op_pmshort) < SvCUR(pm->op_pmregexp->regmust)))) { | |
8990e307 | 4675 | SvREFCNT_dec(pm->op_pmshort); /* ok if null */ |
79072805 | 4676 | pm->op_pmshort = pm->op_pmregexp->regmust; |
748a9306 | 4677 | pm->op_pmslen = SvCUR(pm->op_pmshort); |
79072805 LW |
4678 | pm->op_pmregexp->regmust = Nullsv; |
4679 | pm->op_pmflags |= PMf_SCANFIRST; | |
378cc40b LW |
4680 | } |
4681 | } | |
4682 | } | |
4683 | ||
8990e307 | 4684 | static char * |
79072805 | 4685 | scan_trans(start) |
2f3197b3 | 4686 | char *start; |
378cc40b | 4687 | { |
a0d0e21e | 4688 | register char* s; |
79072805 LW |
4689 | OP *op; |
4690 | short *tbl; | |
4691 | I32 squash; | |
4692 | I32 delete; | |
4693 | I32 complement; | |
4694 | ||
4695 | yylval.ival = OP_NULL; | |
4696 | ||
a0d0e21e | 4697 | s = scan_str(start); |
79072805 LW |
4698 | if (!s) { |
4699 | if (lex_stuff) | |
8990e307 | 4700 | SvREFCNT_dec(lex_stuff); |
79072805 | 4701 | lex_stuff = Nullsv; |
463ee0b2 | 4702 | croak("Translation pattern not terminated"); |
a687059c | 4703 | } |
a0d0e21e | 4704 | if (s[-1] == multi_open) |
2f3197b3 LW |
4705 | s--; |
4706 | ||
93a17b20 | 4707 | s = scan_str(s); |
79072805 LW |
4708 | if (!s) { |
4709 | if (lex_stuff) | |
8990e307 | 4710 | SvREFCNT_dec(lex_stuff); |
79072805 LW |
4711 | lex_stuff = Nullsv; |
4712 | if (lex_repl) | |
8990e307 | 4713 | SvREFCNT_dec(lex_repl); |
79072805 | 4714 | lex_repl = Nullsv; |
463ee0b2 | 4715 | croak("Translation replacement not terminated"); |
a687059c | 4716 | } |
79072805 LW |
4717 | |
4718 | New(803,tbl,256,short); | |
4719 | op = newPVOP(OP_TRANS, 0, (char*)tbl); | |
2f3197b3 | 4720 | |
395c3793 LW |
4721 | complement = delete = squash = 0; |
4722 | while (*s == 'c' || *s == 'd' || *s == 's') { | |
4723 | if (*s == 'c') | |
79072805 | 4724 | complement = OPpTRANS_COMPLEMENT; |
395c3793 | 4725 | else if (*s == 'd') |
79072805 | 4726 | delete = OPpTRANS_DELETE; |
395c3793 | 4727 | else |
79072805 | 4728 | squash = OPpTRANS_SQUASH; |
395c3793 LW |
4729 | s++; |
4730 | } | |
79072805 LW |
4731 | op->op_private = delete|squash|complement; |
4732 | ||
4733 | lex_op = op; | |
4734 | yylval.ival = OP_TRANS; | |
4735 | return s; | |
4736 | } | |
4737 | ||
8990e307 | 4738 | static char * |
79072805 LW |
4739 | scan_heredoc(s) |
4740 | register char *s; | |
4741 | { | |
4742 | SV *herewas; | |
4743 | I32 op_type = OP_SCALAR; | |
4744 | I32 len; | |
4745 | SV *tmpstr; | |
4746 | char term; | |
4747 | register char *d; | |
fc36a67e | 4748 | register char *e; |
4633a7c4 | 4749 | char *peek; |
fd2d0953 | 4750 | int outer = (rsfp && !lex_inwhat); |
79072805 LW |
4751 | |
4752 | s += 2; | |
4753 | d = tokenbuf; | |
fc36a67e | 4754 | e = tokenbuf + sizeof tokenbuf - 1; |
fd2d0953 | 4755 | if (!outer) |
79072805 | 4756 | *d++ = '\n'; |
4633a7c4 LW |
4757 | for (peek = s; *peek == ' ' || *peek == '\t'; peek++) ; |
4758 | if (*peek && strchr("`'\"",*peek)) { | |
4759 | s = peek; | |
79072805 | 4760 | term = *s++; |
fc36a67e | 4761 | s = delimcpy(d, e, s, bufend, term, &len); |
4762 | d += len; | |
79072805 LW |
4763 | if (s < bufend) |
4764 | s++; | |
79072805 LW |
4765 | } |
4766 | else { | |
4767 | if (*s == '\\') | |
4768 | s++, term = '\''; | |
4769 | else | |
4770 | term = '"'; | |
4633a7c4 LW |
4771 | if (!isALNUM(*s)) |
4772 | deprecate("bare << to mean <<\"\""); | |
fc36a67e | 4773 | for (; isALNUM(*s); s++) { |
4774 | if (d < e) | |
4775 | *d++ = *s; | |
4776 | } | |
4777 | } | |
4778 | if (d >= tokenbuf + sizeof tokenbuf - 1) | |
4779 | croak("Delimiter for here document is too long"); | |
79072805 LW |
4780 | *d++ = '\n'; |
4781 | *d = '\0'; | |
4782 | len = d - tokenbuf; | |
4783 | d = "\n"; | |
fd2d0953 | 4784 | if (outer || !(d=ninstr(s,bufend,d,d+1))) |
79072805 LW |
4785 | herewas = newSVpv(s,bufend-s); |
4786 | else | |
4787 | s--, herewas = newSVpv(s,d-s); | |
4788 | s += SvCUR(herewas); | |
748a9306 LW |
4789 | |
4790 | tmpstr = NEWSV(87,80); | |
4791 | sv_upgrade(tmpstr, SVt_PVIV); | |
4792 | if (term == '\'') { | |
79072805 | 4793 | op_type = OP_CONST; |
748a9306 LW |
4794 | SvIVX(tmpstr) = -1; |
4795 | } | |
4796 | else if (term == '`') { | |
79072805 | 4797 | op_type = OP_BACKTICK; |
748a9306 LW |
4798 | SvIVX(tmpstr) = '\\'; |
4799 | } | |
79072805 LW |
4800 | |
4801 | CLINE; | |
4802 | multi_start = curcop->cop_line; | |
4803 | multi_open = multi_close = '<'; | |
79072805 | 4804 | term = *tokenbuf; |
fd2d0953 | 4805 | if (!outer) { |
79072805 LW |
4806 | d = s; |
4807 | while (s < bufend && | |
36477c24 | 4808 | (*s != term || memNE(s,tokenbuf,len)) ) { |
79072805 LW |
4809 | if (*s++ == '\n') |
4810 | curcop->cop_line++; | |
4811 | } | |
4812 | if (s >= bufend) { | |
4813 | curcop->cop_line = multi_start; | |
8990e307 | 4814 | missingterm(tokenbuf); |
79072805 LW |
4815 | } |
4816 | sv_setpvn(tmpstr,d+1,s-d); | |
4817 | s += len - 1; | |
4818 | sv_catpvn(herewas,s,bufend-s); | |
4819 | sv_setsv(linestr,herewas); | |
fd049845 | 4820 | oldoldbufptr = oldbufptr = bufptr = s = linestart = SvPVX(linestr); |
463ee0b2 | 4821 | bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 LW |
4822 | } |
4823 | else | |
4824 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
4825 | while (s >= bufend) { /* multiple line string? */ | |
fd2d0953 | 4826 | if (!outer || |
fd049845 | 4827 | !(oldoldbufptr = oldbufptr = s = linestart = filter_gets(linestr, rsfp, 0))) { |
79072805 | 4828 | curcop->cop_line = multi_start; |
8990e307 | 4829 | missingterm(tokenbuf); |
79072805 LW |
4830 | } |
4831 | curcop->cop_line++; | |
8990e307 | 4832 | if (perldb && curstash != debstash) { |
79072805 LW |
4833 | SV *sv = NEWSV(88,0); |
4834 | ||
93a17b20 | 4835 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
4836 | sv_setsv(sv,linestr); |
4837 | av_store(GvAV(curcop->cop_filegv), | |
4838 | (I32)curcop->cop_line,sv); | |
4839 | } | |
463ee0b2 | 4840 | bufend = SvPVX(linestr) + SvCUR(linestr); |
36477c24 | 4841 | if (*s == term && memEQ(s,tokenbuf,len)) { |
79072805 LW |
4842 | s = bufend - 1; |
4843 | *s = ' '; | |
4844 | sv_catsv(linestr,herewas); | |
463ee0b2 | 4845 | bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 LW |
4846 | } |
4847 | else { | |
4848 | s = bufend; | |
4849 | sv_catsv(tmpstr,linestr); | |
395c3793 LW |
4850 | } |
4851 | } | |
79072805 LW |
4852 | multi_end = curcop->cop_line; |
4853 | s++; | |
4854 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { | |
4855 | SvLEN_set(tmpstr, SvCUR(tmpstr) + 1); | |
463ee0b2 | 4856 | Renew(SvPVX(tmpstr), SvLEN(tmpstr), char); |
79072805 | 4857 | } |
8990e307 | 4858 | SvREFCNT_dec(herewas); |
79072805 LW |
4859 | lex_stuff = tmpstr; |
4860 | yylval.ival = op_type; | |
4861 | return s; | |
4862 | } | |
4863 | ||
8990e307 | 4864 | static char * |
79072805 LW |
4865 | scan_inputsymbol(start) |
4866 | char *start; | |
4867 | { | |
4868 | register char *s = start; | |
4869 | register char *d; | |
fc36a67e | 4870 | register char *e; |
79072805 LW |
4871 | I32 len; |
4872 | ||
4873 | d = tokenbuf; | |
fc36a67e | 4874 | e = tokenbuf + sizeof tokenbuf; |
4875 | s = delimcpy(d, e, s + 1, bufend, '>', &len); | |
4876 | if (len >= sizeof tokenbuf) | |
4877 | croak("Excessively long <> operator"); | |
4878 | if (s >= bufend) | |
463ee0b2 | 4879 | croak("Unterminated <> operator"); |
fc36a67e | 4880 | s++; |
4633a7c4 | 4881 | if (*d == '$' && d[1]) d++; |
a0d0e21e | 4882 | while (*d && (isALNUM(*d) || *d == '\'' || *d == ':')) |
79072805 LW |
4883 | d++; |
4884 | if (d - tokenbuf != len) { | |
4885 | yylval.ival = OP_GLOB; | |
4886 | set_csh(); | |
4887 | s = scan_str(start); | |
4888 | if (!s) | |
463ee0b2 | 4889 | croak("Glob not terminated"); |
79072805 LW |
4890 | return s; |
4891 | } | |
395c3793 | 4892 | else { |
79072805 LW |
4893 | d = tokenbuf; |
4894 | if (!len) | |
4895 | (void)strcpy(d,"ARGV"); | |
4896 | if (*d == '$') { | |
a0d0e21e LW |
4897 | I32 tmp; |
4898 | if (tmp = pad_findmy(d)) { | |
4899 | OP *op = newOP(OP_PADSV, 0); | |
4900 | op->op_targ = tmp; | |
4901 | lex_op = (OP*)newUNOP(OP_READLINE, 0, newUNOP(OP_RV2GV, 0, op)); | |
4902 | } | |
4903 | else { | |
4904 | GV *gv = gv_fetchpv(d+1,TRUE, SVt_PV); | |
4905 | lex_op = (OP*)newUNOP(OP_READLINE, 0, | |
4906 | newUNOP(OP_RV2GV, 0, | |
4907 | newUNOP(OP_RV2SV, 0, | |
4908 | newGVOP(OP_GV, 0, gv)))); | |
4909 | } | |
79072805 LW |
4910 | yylval.ival = OP_NULL; |
4911 | } | |
4912 | else { | |
85e6fe83 | 4913 | GV *gv = gv_fetchpv(d,TRUE, SVt_PVIO); |
79072805 LW |
4914 | lex_op = (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); |
4915 | yylval.ival = OP_NULL; | |
4916 | } | |
4917 | } | |
4918 | return s; | |
4919 | } | |
4920 | ||
8990e307 | 4921 | static char * |
79072805 LW |
4922 | scan_str(start) |
4923 | char *start; | |
4924 | { | |
93a17b20 | 4925 | SV *sv; |
79072805 LW |
4926 | char *tmps; |
4927 | register char *s = start; | |
a0d0e21e | 4928 | register char term; |
93a17b20 LW |
4929 | register char *to; |
4930 | I32 brackets = 1; | |
79072805 | 4931 | |
a0d0e21e LW |
4932 | if (isSPACE(*s)) |
4933 | s = skipspace(s); | |
79072805 | 4934 | CLINE; |
a0d0e21e | 4935 | term = *s; |
79072805 LW |
4936 | multi_start = curcop->cop_line; |
4937 | multi_open = term; | |
93a17b20 | 4938 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
79072805 LW |
4939 | term = tmps[5]; |
4940 | multi_close = term; | |
4941 | ||
93a17b20 | 4942 | sv = NEWSV(87,80); |
ed6116ce LW |
4943 | sv_upgrade(sv, SVt_PVIV); |
4944 | SvIVX(sv) = term; | |
a0d0e21e | 4945 | (void)SvPOK_only(sv); /* validate pointer */ |
93a17b20 LW |
4946 | s++; |
4947 | for (;;) { | |
4948 | SvGROW(sv, SvCUR(sv) + (bufend - s) + 1); | |
463ee0b2 | 4949 | to = SvPVX(sv)+SvCUR(sv); |
93a17b20 LW |
4950 | if (multi_open == multi_close) { |
4951 | for (; s < bufend; s++,to++) { | |
463ee0b2 LW |
4952 | if (*s == '\n' && !rsfp) |
4953 | curcop->cop_line++; | |
a0d0e21e LW |
4954 | if (*s == '\\' && s+1 < bufend && term != '\\') { |
4955 | if (s[1] == term) | |
4956 | s++; | |
4957 | else | |
4958 | *to++ = *s++; | |
4959 | } | |
93a17b20 LW |
4960 | else if (*s == term) |
4961 | break; | |
4962 | *to = *s; | |
4963 | } | |
4964 | } | |
4965 | else { | |
4966 | for (; s < bufend; s++,to++) { | |
463ee0b2 LW |
4967 | if (*s == '\n' && !rsfp) |
4968 | curcop->cop_line++; | |
a0d0e21e LW |
4969 | if (*s == '\\' && s+1 < bufend && term != '\\') { |
4970 | if (s[1] == term) | |
4971 | s++; | |
4972 | else | |
4973 | *to++ = *s++; | |
4974 | } | |
93a17b20 LW |
4975 | else if (*s == term && --brackets <= 0) |
4976 | break; | |
4977 | else if (*s == multi_open) | |
4978 | brackets++; | |
4979 | *to = *s; | |
4980 | } | |
4981 | } | |
4982 | *to = '\0'; | |
463ee0b2 | 4983 | SvCUR_set(sv, to - SvPVX(sv)); |
93a17b20 LW |
4984 | |
4985 | if (s < bufend) break; /* string ends on this line? */ | |
79072805 | 4986 | |
79072805 | 4987 | if (!rsfp || |
fd049845 | 4988 | !(oldoldbufptr = oldbufptr = s = linestart = filter_gets(linestr, rsfp, 0))) { |
c07a80fd | 4989 | sv_free(sv); |
79072805 LW |
4990 | curcop->cop_line = multi_start; |
4991 | return Nullch; | |
4992 | } | |
4993 | curcop->cop_line++; | |
8990e307 | 4994 | if (perldb && curstash != debstash) { |
79072805 LW |
4995 | SV *sv = NEWSV(88,0); |
4996 | ||
93a17b20 | 4997 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
4998 | sv_setsv(sv,linestr); |
4999 | av_store(GvAV(curcop->cop_filegv), | |
5000 | (I32)curcop->cop_line, sv); | |
395c3793 | 5001 | } |
463ee0b2 | 5002 | bufend = SvPVX(linestr) + SvCUR(linestr); |
378cc40b | 5003 | } |
79072805 LW |
5004 | multi_end = curcop->cop_line; |
5005 | s++; | |
93a17b20 LW |
5006 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
5007 | SvLEN_set(sv, SvCUR(sv) + 1); | |
463ee0b2 | 5008 | Renew(SvPVX(sv), SvLEN(sv), char); |
79072805 LW |
5009 | } |
5010 | if (lex_stuff) | |
93a17b20 | 5011 | lex_repl = sv; |
79072805 | 5012 | else |
93a17b20 | 5013 | lex_stuff = sv; |
378cc40b LW |
5014 | return s; |
5015 | } | |
5016 | ||
5017 | char * | |
79072805 | 5018 | scan_num(start) |
2f3197b3 | 5019 | char *start; |
378cc40b | 5020 | { |
2f3197b3 | 5021 | register char *s = start; |
378cc40b | 5022 | register char *d; |
fc36a67e | 5023 | register char *e; |
1e422769 | 5024 | I32 tryiv; |
79072805 LW |
5025 | double value; |
5026 | SV *sv; | |
5027 | I32 floatit; | |
93a17b20 | 5028 | char *lastub = 0; |
fc36a67e | 5029 | static char number_too_long[] = "Number too long"; |
378cc40b LW |
5030 | |
5031 | switch (*s) { | |
79072805 | 5032 | default: |
463ee0b2 | 5033 | croak("panic: scan_num"); |
378cc40b LW |
5034 | case '0': |
5035 | { | |
55497cff | 5036 | UV u; |
79072805 | 5037 | I32 shift; |
55497cff | 5038 | bool overflowed = FALSE; |
378cc40b | 5039 | |
378cc40b LW |
5040 | if (s[1] == 'x') { |
5041 | shift = 4; | |
5042 | s += 2; | |
5043 | } | |
5044 | else if (s[1] == '.') | |
5045 | goto decimal; | |
5046 | else | |
5047 | shift = 3; | |
55497cff | 5048 | u = 0; |
378cc40b | 5049 | for (;;) { |
55497cff | 5050 | UV n, b; |
5051 | ||
378cc40b LW |
5052 | switch (*s) { |
5053 | default: | |
5054 | goto out; | |
de3bb511 LW |
5055 | case '_': |
5056 | s++; | |
5057 | break; | |
378cc40b LW |
5058 | case '8': case '9': |
5059 | if (shift != 4) | |
a687059c | 5060 | yyerror("Illegal octal digit"); |
378cc40b LW |
5061 | /* FALL THROUGH */ |
5062 | case '0': case '1': case '2': case '3': case '4': | |
5063 | case '5': case '6': case '7': | |
55497cff | 5064 | b = *s++ & 15; |
5065 | goto digit; | |
378cc40b LW |
5066 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
5067 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
5068 | if (shift != 4) | |
5069 | goto out; | |
55497cff | 5070 | b = (*s++ & 7) + 9; |
5071 | digit: | |
5072 | n = u << shift; | |
5073 | if (!overflowed && (n >> shift) != u) { | |
5074 | warn("Integer overflow in %s number", | |
5075 | (shift == 4) ? "hex" : "octal"); | |
5076 | overflowed = TRUE; | |
5077 | } | |
5078 | u = n | b; | |
378cc40b LW |
5079 | break; |
5080 | } | |
5081 | } | |
5082 | out: | |
79072805 | 5083 | sv = NEWSV(92,0); |
55497cff | 5084 | sv_setuv(sv, u); |
378cc40b LW |
5085 | } |
5086 | break; | |
5087 | case '1': case '2': case '3': case '4': case '5': | |
5088 | case '6': case '7': case '8': case '9': case '.': | |
5089 | decimal: | |
378cc40b | 5090 | d = tokenbuf; |
fc36a67e | 5091 | e = tokenbuf + sizeof tokenbuf - 6; /* room for various punctuation */ |
79072805 | 5092 | floatit = FALSE; |
de3bb511 | 5093 | while (isDIGIT(*s) || *s == '_') { |
93a17b20 LW |
5094 | if (*s == '_') { |
5095 | if (dowarn && lastub && s - lastub != 3) | |
8990e307 | 5096 | warn("Misplaced _ in number"); |
93a17b20 LW |
5097 | lastub = ++s; |
5098 | } | |
fc36a67e | 5099 | else { |
5100 | if (d >= e) | |
5101 | croak(number_too_long); | |
378cc40b | 5102 | *d++ = *s++; |
fc36a67e | 5103 | } |
378cc40b | 5104 | } |
93a17b20 | 5105 | if (dowarn && lastub && s - lastub != 3) |
8990e307 | 5106 | warn("Misplaced _ in number"); |
2f3197b3 | 5107 | if (*s == '.' && s[1] != '.') { |
79072805 | 5108 | floatit = TRUE; |
378cc40b | 5109 | *d++ = *s++; |
fc36a67e | 5110 | for (; isDIGIT(*s) || *s == '_'; s++) { |
5111 | if (d >= e) | |
5112 | croak(number_too_long); | |
5113 | if (*s != '_') | |
5114 | *d++ = *s; | |
378cc40b LW |
5115 | } |
5116 | } | |
93a17b20 | 5117 | if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) { |
79072805 LW |
5118 | floatit = TRUE; |
5119 | s++; | |
5120 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ | |
378cc40b LW |
5121 | if (*s == '+' || *s == '-') |
5122 | *d++ = *s++; | |
fc36a67e | 5123 | while (isDIGIT(*s)) { |
5124 | if (d >= e) | |
5125 | croak(number_too_long); | |
378cc40b | 5126 | *d++ = *s++; |
fc36a67e | 5127 | } |
378cc40b LW |
5128 | } |
5129 | *d = '\0'; | |
79072805 | 5130 | sv = NEWSV(92,0); |
36477c24 | 5131 | SET_NUMERIC_STANDARD(); |
79072805 | 5132 | value = atof(tokenbuf); |
1e422769 | 5133 | tryiv = I_V(value); |
5134 | if (!floatit && (double)tryiv == value) | |
5135 | sv_setiv(sv, tryiv); | |
2f3197b3 | 5136 | else |
1e422769 | 5137 | sv_setnv(sv, value); |
378cc40b | 5138 | break; |
79072805 | 5139 | } |
a687059c | 5140 | |
79072805 | 5141 | yylval.opval = newSVOP(OP_CONST, 0, sv); |
a687059c | 5142 | |
378cc40b LW |
5143 | return s; |
5144 | } | |
5145 | ||
8990e307 | 5146 | static char * |
79072805 LW |
5147 | scan_formline(s) |
5148 | register char *s; | |
378cc40b | 5149 | { |
79072805 | 5150 | register char *eol; |
378cc40b | 5151 | register char *t; |
a0d0e21e | 5152 | SV *stuff = newSVpv("",0); |
79072805 | 5153 | bool needargs = FALSE; |
378cc40b | 5154 | |
79072805 | 5155 | while (!needargs) { |
85e6fe83 | 5156 | if (*s == '.' || *s == '}') { |
79072805 LW |
5157 | /*SUPPRESS 530*/ |
5158 | for (t = s+1; *t == ' ' || *t == '\t'; t++) ; | |
5159 | if (*t == '\n') | |
5160 | break; | |
5161 | } | |
0f85fab0 | 5162 | if (in_eval && !rsfp) { |
93a17b20 | 5163 | eol = strchr(s,'\n'); |
0f85fab0 LW |
5164 | if (!eol++) |
5165 | eol = bufend; | |
5166 | } | |
5167 | else | |
463ee0b2 | 5168 | eol = bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 | 5169 | if (*s != '#') { |
a0d0e21e LW |
5170 | for (t = s; t < eol; t++) { |
5171 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
5172 | needargs = FALSE; | |
5173 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 5174 | } |
a0d0e21e LW |
5175 | if (*t == '@' || *t == '^') |
5176 | needargs = TRUE; | |
378cc40b | 5177 | } |
a0d0e21e | 5178 | sv_catpvn(stuff, s, eol-s); |
79072805 LW |
5179 | } |
5180 | s = eol; | |
5181 | if (rsfp) { | |
fd049845 | 5182 | s = filter_gets(linestr, rsfp, 0); |
5183 | oldoldbufptr = oldbufptr = bufptr = linestart = SvPVX(linestr); | |
a0d0e21e | 5184 | bufend = bufptr + SvCUR(linestr); |
79072805 LW |
5185 | if (!s) { |
5186 | s = bufptr; | |
5187 | yyerror("Format not terminated"); | |
378cc40b LW |
5188 | break; |
5189 | } | |
378cc40b | 5190 | } |
463ee0b2 | 5191 | incline(s); |
79072805 | 5192 | } |
a0d0e21e LW |
5193 | enough: |
5194 | if (SvCUR(stuff)) { | |
463ee0b2 | 5195 | expect = XTERM; |
79072805 | 5196 | if (needargs) { |
a0d0e21e | 5197 | lex_state = LEX_NORMAL; |
79072805 LW |
5198 | nextval[nexttoke].ival = 0; |
5199 | force_next(','); | |
5200 | } | |
a0d0e21e LW |
5201 | else |
5202 | lex_state = LEX_FORMLINE; | |
79072805 LW |
5203 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
5204 | force_next(THING); | |
5205 | nextval[nexttoke].ival = OP_FORMLINE; | |
5206 | force_next(LSTOP); | |
378cc40b | 5207 | } |
79072805 | 5208 | else { |
8990e307 | 5209 | SvREFCNT_dec(stuff); |
85e6fe83 | 5210 | lex_formbrack = 0; |
79072805 LW |
5211 | bufptr = s; |
5212 | } | |
5213 | return s; | |
378cc40b | 5214 | } |
a687059c | 5215 | |
2f3197b3 | 5216 | static void |
a687059c LW |
5217 | set_csh() |
5218 | { | |
ae986130 LW |
5219 | #ifdef CSH |
5220 | if (!cshlen) | |
5221 | cshlen = strlen(cshname); | |
5222 | #endif | |
a687059c | 5223 | } |
463ee0b2 | 5224 | |
ba6d6ac9 | 5225 | I32 |
774d564b | 5226 | start_subparse(is_format, flags) |
5227 | I32 is_format; | |
fa83b5b6 | 5228 | U32 flags; |
8990e307 | 5229 | { |
ba6d6ac9 | 5230 | I32 oldsavestack_ix = savestack_ix; |
748a9306 LW |
5231 | CV* outsidecv = compcv; |
5232 | AV* comppadlist; | |
8990e307 | 5233 | |
e9a444f0 LW |
5234 | if (compcv) { |
5235 | assert(SvTYPE(compcv) == SVt_PVCV); | |
5236 | } | |
8990e307 LW |
5237 | save_I32(&subline); |
5238 | save_item(subname); | |
55497cff | 5239 | SAVEI32(padix); |
8990e307 LW |
5240 | SAVESPTR(curpad); |
5241 | SAVESPTR(comppad); | |
5242 | SAVESPTR(comppad_name); | |
748a9306 | 5243 | SAVESPTR(compcv); |
55497cff | 5244 | SAVEI32(comppad_name_fill); |
5245 | SAVEI32(min_intro_pending); | |
5246 | SAVEI32(max_intro_pending); | |
5247 | SAVEI32(pad_reset_pending); | |
748a9306 LW |
5248 | |
5249 | compcv = (CV*)NEWSV(1104,0); | |
774d564b | 5250 | sv_upgrade((SV *)compcv, is_format ? SVt_PVFM : SVt_PVCV); |
fa83b5b6 | 5251 | CvFLAGS(compcv) |= flags; |
748a9306 | 5252 | |
8990e307 LW |
5253 | comppad = newAV(); |
5254 | comppad_name = newAV(); | |
5255 | comppad_name_fill = 0; | |
5256 | min_intro_pending = 0; | |
5257 | av_push(comppad, Nullsv); | |
5258 | curpad = AvARRAY(comppad); | |
5259 | padix = 0; | |
8990e307 | 5260 | subline = curcop->cop_line; |
748a9306 LW |
5261 | |
5262 | comppadlist = newAV(); | |
5263 | AvREAL_off(comppadlist); | |
8e07c86e AD |
5264 | av_store(comppadlist, 0, (SV*)comppad_name); |
5265 | av_store(comppadlist, 1, (SV*)comppad); | |
748a9306 LW |
5266 | |
5267 | CvPADLIST(compcv) = comppadlist; | |
e9a444f0 | 5268 | CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc((SV*)outsidecv); |
748a9306 | 5269 | |
8990e307 LW |
5270 | return oldsavestack_ix; |
5271 | } | |
5272 | ||
5273 | int | |
5274 | yywarn(s) | |
5275 | char *s; | |
5276 | { | |
5277 | --error_count; | |
748a9306 LW |
5278 | in_eval |= 2; |
5279 | yyerror(s); | |
5280 | in_eval &= ~2; | |
5281 | return 0; | |
8990e307 LW |
5282 | } |
5283 | ||
5284 | int | |
463ee0b2 LW |
5285 | yyerror(s) |
5286 | char *s; | |
5287 | { | |
68dc0745 | 5288 | char *where = NULL; |
5289 | char *context = NULL; | |
5290 | int contlen = -1; | |
46fc3d4c | 5291 | SV *msg; |
463ee0b2 | 5292 | |
54310121 | 5293 | if (!yychar || (yychar == ';' && !rsfp)) |
5294 | where = "at EOF"; | |
5295 | else if (bufptr > oldoldbufptr && bufptr - oldoldbufptr < 200 && | |
463ee0b2 LW |
5296 | oldoldbufptr != oldbufptr && oldbufptr != bufptr) { |
5297 | while (isSPACE(*oldoldbufptr)) | |
5298 | oldoldbufptr++; | |
68dc0745 | 5299 | context = oldoldbufptr; |
5300 | contlen = bufptr - oldoldbufptr; | |
463ee0b2 LW |
5301 | } |
5302 | else if (bufptr > oldbufptr && bufptr - oldbufptr < 200 && | |
5303 | oldbufptr != bufptr) { | |
5304 | while (isSPACE(*oldbufptr)) | |
5305 | oldbufptr++; | |
68dc0745 | 5306 | context = oldbufptr; |
5307 | contlen = bufptr - oldbufptr; | |
463ee0b2 LW |
5308 | } |
5309 | else if (yychar > 255) | |
68dc0745 | 5310 | where = "next token ???"; |
463ee0b2 LW |
5311 | else if ((yychar & 127) == 127) { |
5312 | if (lex_state == LEX_NORMAL || | |
5313 | (lex_state == LEX_KNOWNEXT && lex_defer == LEX_NORMAL)) | |
68dc0745 | 5314 | where = "at end of line"; |
4633a7c4 | 5315 | else if (lex_inpat) |
68dc0745 | 5316 | where = "within pattern"; |
463ee0b2 | 5317 | else |
68dc0745 | 5318 | where = "within string"; |
463ee0b2 | 5319 | } |
46fc3d4c | 5320 | else { |
5321 | SV *where_sv = sv_2mortal(newSVpv("next char ", 0)); | |
5322 | if (yychar < 32) | |
5323 | sv_catpvf(where_sv, "^%c", toCTRL(yychar)); | |
5324 | else if (isPRINT_LC(yychar)) | |
5325 | sv_catpvf(where_sv, "%c", yychar); | |
5326 | else | |
5327 | sv_catpvf(where_sv, "\\%03o", yychar & 255); | |
5328 | where = SvPVX(where_sv); | |
5329 | } | |
5330 | msg = sv_2mortal(newSVpv(s, 0)); | |
fc36a67e | 5331 | sv_catpvf(msg, " at %_ line %ld, ", |
46fc3d4c | 5332 | GvSV(curcop->cop_filegv), (long)curcop->cop_line); |
68dc0745 | 5333 | if (context) |
46fc3d4c | 5334 | sv_catpvf(msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 5335 | else |
46fc3d4c | 5336 | sv_catpvf(msg, "%s\n", where); |
4fdae800 | 5337 | if (multi_start < multi_end && (U32)(curcop->cop_line - multi_end) <= 1) { |
46fc3d4c | 5338 | sv_catpvf(msg, |
4fdae800 | 5339 | " (Might be a runaway multi-line %c%c string starting on line %ld)\n", |
ff0cee69 | 5340 | (int)multi_open,(int)multi_close,(long)multi_start); |
a0d0e21e LW |
5341 | multi_end = 0; |
5342 | } | |
748a9306 | 5343 | if (in_eval & 2) |
fc36a67e | 5344 | warn("%_", msg); |
748a9306 | 5345 | else if (in_eval) |
46fc3d4c | 5346 | sv_catsv(GvSV(errgv), msg); |
463ee0b2 | 5347 | else |
46fc3d4c | 5348 | PerlIO_write(PerlIO_stderr(), SvPVX(msg), SvCUR(msg)); |
463ee0b2 | 5349 | if (++error_count >= 10) |
fc36a67e | 5350 | croak("%_ has too many errors.\n", GvSV(curcop->cop_filegv)); |
4633a7c4 | 5351 | in_my = 0; |
463ee0b2 LW |
5352 | return 0; |
5353 | } |