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 | ||
fb73857a | 69 | /* #define LEX_NOTPARSING 11 is done in perl.h. */ |
70 | ||
55497cff | 71 | #define LEX_NORMAL 10 |
72 | #define LEX_INTERPNORMAL 9 | |
73 | #define LEX_INTERPCASEMOD 8 | |
74 | #define LEX_INTERPPUSH 7 | |
75 | #define LEX_INTERPSTART 6 | |
76 | #define LEX_INTERPEND 5 | |
77 | #define LEX_INTERPENDMAYBE 4 | |
78 | #define LEX_INTERPCONCAT 3 | |
79 | #define LEX_INTERPCONST 2 | |
80 | #define LEX_FORMLINE 1 | |
81 | #define LEX_KNOWNEXT 0 | |
79072805 | 82 | |
395c3793 LW |
83 | #ifdef I_FCNTL |
84 | #include <fcntl.h> | |
85 | #endif | |
fe14fcc3 LW |
86 | #ifdef I_SYS_FILE |
87 | #include <sys/file.h> | |
88 | #endif | |
395c3793 | 89 | |
a790bc05 | 90 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
91 | #ifdef I_UNISTD | |
92 | # include <unistd.h> /* Needed for execv() */ | |
93 | #endif | |
94 | ||
95 | ||
79072805 LW |
96 | #ifdef ff_next |
97 | #undef ff_next | |
d48672a2 LW |
98 | #endif |
99 | ||
79072805 | 100 | #include "keywords.h" |
fe14fcc3 | 101 | |
ae986130 LW |
102 | #ifdef CLINE |
103 | #undef CLINE | |
104 | #endif | |
79072805 | 105 | #define CLINE (copline = (curcop->cop_line < copline ? curcop->cop_line : copline)) |
378cc40b | 106 | |
79072805 LW |
107 | #define TOKEN(retval) return (bufptr = s,(int)retval) |
108 | #define OPERATOR(retval) return (expect = XTERM,bufptr = s,(int)retval) | |
a0d0e21e | 109 | #define AOPERATOR(retval) return ao((expect = XTERM,bufptr = s,(int)retval)) |
79072805 | 110 | #define PREBLOCK(retval) return (expect = XBLOCK,bufptr = s,(int)retval) |
a0d0e21e | 111 | #define PRETERMBLOCK(retval) return (expect = XTERMBLOCK,bufptr = s,(int)retval) |
79072805 LW |
112 | #define PREREF(retval) return (expect = XREF,bufptr = s,(int)retval) |
113 | #define TERM(retval) return (CLINE, expect = XOPERATOR,bufptr = s,(int)retval) | |
463ee0b2 | 114 | #define LOOPX(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LOOPEX) |
79072805 LW |
115 | #define FTST(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)UNIOP) |
116 | #define FUN0(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC0) | |
117 | #define FUN1(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC1) | |
a0d0e21e LW |
118 | #define BOop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITOROP)) |
119 | #define BAop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITANDOP)) | |
120 | #define SHop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)SHIFTOP)) | |
121 | #define PWop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)POWOP)) | |
79072805 | 122 | #define PMop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)MATCHOP) |
a0d0e21e LW |
123 | #define Aop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)ADDOP)) |
124 | #define Mop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)MULOP)) | |
79072805 LW |
125 | #define Eop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)EQOP) |
126 | #define Rop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)RELOP) | |
2f3197b3 | 127 | |
a687059c LW |
128 | /* This bit of chicanery makes a unary function followed by |
129 | * a parenthesis into a function with one argument, highest precedence. | |
130 | */ | |
2f3197b3 | 131 | #define UNI(f) return(yylval.ival = f, \ |
79072805 | 132 | expect = XTERM, \ |
2f3197b3 LW |
133 | bufptr = s, \ |
134 | last_uni = oldbufptr, \ | |
a0d0e21e | 135 | last_lop_op = f, \ |
a687059c LW |
136 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) ) |
137 | ||
79072805 LW |
138 | #define UNIBRACK(f) return(yylval.ival = f, \ |
139 | bufptr = s, \ | |
140 | last_uni = oldbufptr, \ | |
141 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) ) | |
142 | ||
9f68db38 | 143 | /* grandfather return to old style */ |
79072805 LW |
144 | #define OLDLOP(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LSTOP) |
145 | ||
a0d0e21e LW |
146 | static int |
147 | ao(toketype) | |
148 | int toketype; | |
149 | { | |
150 | if (*bufptr == '=') { | |
151 | bufptr++; | |
152 | if (toketype == ANDAND) | |
153 | yylval.ival = OP_ANDASSIGN; | |
154 | else if (toketype == OROR) | |
155 | yylval.ival = OP_ORASSIGN; | |
156 | toketype = ASSIGNOP; | |
157 | } | |
158 | return toketype; | |
159 | } | |
160 | ||
8990e307 LW |
161 | static void |
162 | no_op(what, s) | |
463ee0b2 | 163 | char *what; |
8990e307 | 164 | char *s; |
463ee0b2 | 165 | { |
748a9306 | 166 | char *oldbp = bufptr; |
fd049845 | 167 | bool is_first = (oldbufptr == linestart); |
68dc0745 | 168 | |
8990e307 | 169 | bufptr = s; |
46fc3d4c | 170 | yywarn(form("%s found where operator expected", what)); |
748a9306 | 171 | if (is_first) |
a0d0e21e | 172 | warn("\t(Missing semicolon on previous line?)\n"); |
748a9306 LW |
173 | else if (oldoldbufptr && isIDFIRST(*oldoldbufptr)) { |
174 | char *t; | |
175 | for (t = oldoldbufptr; *t && (isALNUM(*t) || *t == ':'); t++) ; | |
176 | if (t < bufptr && isSPACE(*t)) | |
177 | warn("\t(Do you need to predeclare %.*s?)\n", | |
178 | t - oldoldbufptr, oldoldbufptr); | |
179 | ||
180 | } | |
181 | else | |
182 | warn("\t(Missing operator before %.*s?)\n", s - oldbp, oldbp); | |
183 | bufptr = oldbp; | |
8990e307 LW |
184 | } |
185 | ||
186 | static void | |
187 | missingterm(s) | |
188 | char *s; | |
189 | { | |
190 | char tmpbuf[3]; | |
191 | char q; | |
192 | if (s) { | |
193 | char *nl = strrchr(s,'\n'); | |
194 | if (nl) | |
195 | *nl = '\0'; | |
196 | } | |
197 | else if (multi_close < 32 || multi_close == 127) { | |
198 | *tmpbuf = '^'; | |
bbce6d69 | 199 | tmpbuf[1] = toCTRL(multi_close); |
8990e307 LW |
200 | s = "\\n"; |
201 | tmpbuf[2] = '\0'; | |
202 | s = tmpbuf; | |
203 | } | |
204 | else { | |
205 | *tmpbuf = multi_close; | |
206 | tmpbuf[1] = '\0'; | |
207 | s = tmpbuf; | |
208 | } | |
209 | q = strchr(s,'"') ? '\'' : '"'; | |
210 | croak("Can't find string terminator %c%s%c anywhere before EOF",q,s,q); | |
463ee0b2 | 211 | } |
79072805 LW |
212 | |
213 | void | |
a0d0e21e LW |
214 | deprecate(s) |
215 | char *s; | |
216 | { | |
217 | if (dowarn) | |
218 | warn("Use of %s is deprecated", s); | |
219 | } | |
220 | ||
221 | static void | |
222 | depcom() | |
223 | { | |
224 | deprecate("comma-less variable list"); | |
225 | } | |
226 | ||
227 | void | |
8990e307 LW |
228 | lex_start(line) |
229 | SV *line; | |
79072805 | 230 | { |
0f15f207 | 231 | dTHR; |
8990e307 LW |
232 | char *s; |
233 | STRLEN len; | |
234 | ||
55497cff | 235 | SAVEI32(lex_dojoin); |
236 | SAVEI32(lex_brackets); | |
237 | SAVEI32(lex_fakebrack); | |
238 | SAVEI32(lex_casemods); | |
239 | SAVEI32(lex_starts); | |
240 | SAVEI32(lex_state); | |
a0d0e21e | 241 | SAVESPTR(lex_inpat); |
55497cff | 242 | SAVEI32(lex_inwhat); |
243 | SAVEI16(curcop->cop_line); | |
85e6fe83 LW |
244 | SAVEPPTR(bufptr); |
245 | SAVEPPTR(bufend); | |
246 | SAVEPPTR(oldbufptr); | |
247 | SAVEPPTR(oldoldbufptr); | |
fd049845 | 248 | SAVEPPTR(linestart); |
463ee0b2 | 249 | SAVESPTR(linestr); |
85e6fe83 | 250 | SAVEPPTR(lex_brackstack); |
a0d0e21e | 251 | SAVEPPTR(lex_casestack); |
6d5fb7e3 | 252 | SAVEDESTRUCTOR(restore_rsfp, rsfp); |
463ee0b2 | 253 | |
79072805 LW |
254 | lex_state = LEX_NORMAL; |
255 | lex_defer = 0; | |
8990e307 | 256 | expect = XSTATE; |
79072805 LW |
257 | lex_brackets = 0; |
258 | lex_fakebrack = 0; | |
8990e307 | 259 | New(899, lex_brackstack, 120, char); |
a0d0e21e | 260 | New(899, lex_casestack, 12, char); |
8990e307 | 261 | SAVEFREEPV(lex_brackstack); |
a0d0e21e | 262 | SAVEFREEPV(lex_casestack); |
79072805 | 263 | lex_casemods = 0; |
a0d0e21e | 264 | *lex_casestack = '\0'; |
79072805 LW |
265 | lex_dojoin = 0; |
266 | lex_starts = 0; | |
267 | if (lex_stuff) | |
8990e307 | 268 | SvREFCNT_dec(lex_stuff); |
79072805 LW |
269 | lex_stuff = Nullsv; |
270 | if (lex_repl) | |
8990e307 | 271 | SvREFCNT_dec(lex_repl); |
79072805 LW |
272 | lex_repl = Nullsv; |
273 | lex_inpat = 0; | |
274 | lex_inwhat = 0; | |
8990e307 LW |
275 | linestr = line; |
276 | if (SvREADONLY(linestr)) | |
277 | linestr = sv_2mortal(newSVsv(linestr)); | |
278 | s = SvPV(linestr, len); | |
279 | if (len && s[len-1] != ';') { | |
a0d0e21e | 280 | if (!(SvFLAGS(linestr) & SVs_TEMP)) |
8990e307 LW |
281 | linestr = sv_2mortal(newSVsv(linestr)); |
282 | sv_catpvn(linestr, "\n;", 2); | |
283 | } | |
284 | SvTEMP_off(linestr); | |
fd049845 | 285 | oldoldbufptr = oldbufptr = bufptr = linestart = SvPVX(linestr); |
79072805 | 286 | bufend = bufptr + SvCUR(linestr); |
c07a80fd | 287 | SvREFCNT_dec(rs); |
288 | rs = newSVpv("\n", 1); | |
8990e307 | 289 | rsfp = 0; |
79072805 | 290 | } |
a687059c | 291 | |
463ee0b2 LW |
292 | void |
293 | lex_end() | |
294 | { | |
6ca21dd3 | 295 | doextract = FALSE; |
463ee0b2 LW |
296 | } |
297 | ||
298 | static void | |
6d5fb7e3 CS |
299 | restore_rsfp(f) |
300 | void *f; | |
301 | { | |
760ac839 | 302 | PerlIO *fp = (PerlIO*)f; |
6d5fb7e3 | 303 | |
760ac839 LW |
304 | if (rsfp == PerlIO_stdin()) |
305 | PerlIO_clearerr(rsfp); | |
a5f75d66 | 306 | else if (rsfp && (rsfp != fp)) |
760ac839 | 307 | PerlIO_close(rsfp); |
6d5fb7e3 CS |
308 | rsfp = fp; |
309 | } | |
310 | ||
311 | static void | |
463ee0b2 LW |
312 | incline(s) |
313 | char *s; | |
314 | { | |
0f15f207 | 315 | dTHR; |
463ee0b2 LW |
316 | char *t; |
317 | char *n; | |
318 | char ch; | |
319 | int sawline = 0; | |
320 | ||
321 | curcop->cop_line++; | |
322 | if (*s++ != '#') | |
323 | return; | |
324 | while (*s == ' ' || *s == '\t') s++; | |
325 | if (strnEQ(s, "line ", 5)) { | |
326 | s += 5; | |
327 | sawline = 1; | |
328 | } | |
329 | if (!isDIGIT(*s)) | |
330 | return; | |
331 | n = s; | |
332 | while (isDIGIT(*s)) | |
333 | s++; | |
334 | while (*s == ' ' || *s == '\t') | |
335 | s++; | |
336 | if (*s == '"' && (t = strchr(s+1, '"'))) | |
337 | s++; | |
338 | else { | |
339 | if (!sawline) | |
340 | return; /* false alarm */ | |
341 | for (t = s; !isSPACE(*t); t++) ; | |
342 | } | |
343 | ch = *t; | |
344 | *t = '\0'; | |
345 | if (t - s > 0) | |
346 | curcop->cop_filegv = gv_fetchfile(s); | |
347 | else | |
348 | curcop->cop_filegv = gv_fetchfile(origfilename); | |
349 | *t = ch; | |
350 | curcop->cop_line = atoi(n)-1; | |
351 | } | |
352 | ||
8990e307 | 353 | static char * |
a687059c LW |
354 | skipspace(s) |
355 | register char *s; | |
356 | { | |
11343788 | 357 | dTHR; |
85e6fe83 | 358 | if (lex_formbrack && lex_brackets <= lex_formbrack) { |
463ee0b2 LW |
359 | while (s < bufend && (*s == ' ' || *s == '\t')) |
360 | s++; | |
361 | return s; | |
362 | } | |
363 | for (;;) { | |
fd049845 | 364 | STRLEN prevlen; |
463ee0b2 LW |
365 | while (s < bufend && isSPACE(*s)) |
366 | s++; | |
367 | if (s < bufend && *s == '#') { | |
368 | while (s < bufend && *s != '\n') | |
369 | s++; | |
370 | if (s < bufend) | |
371 | s++; | |
372 | } | |
a0d0e21e | 373 | if (s < bufend || !rsfp || lex_state != LEX_NORMAL) |
463ee0b2 | 374 | return s; |
fd049845 | 375 | if ((s = filter_gets(linestr, rsfp, (prevlen = SvCUR(linestr)))) == Nullch) { |
a0d0e21e | 376 | if (minus_n || minus_p) { |
08e9d68e DD |
377 | sv_setpv(linestr,minus_p ? |
378 | ";}continue{print or die qq(-p destination: $!\\n)" : | |
379 | ""); | |
a0d0e21e LW |
380 | sv_catpv(linestr,";}"); |
381 | minus_n = minus_p = 0; | |
382 | } | |
383 | else | |
384 | sv_setpv(linestr,";"); | |
fd049845 | 385 | oldoldbufptr = oldbufptr = bufptr = s = linestart = SvPVX(linestr); |
a0d0e21e LW |
386 | bufend = SvPVX(linestr) + SvCUR(linestr); |
387 | if (preprocess && !in_eval) | |
8990e307 | 388 | (void)my_pclose(rsfp); |
760ac839 LW |
389 | else if ((PerlIO*)rsfp == PerlIO_stdin()) |
390 | PerlIO_clearerr(rsfp); | |
8990e307 | 391 | else |
760ac839 | 392 | (void)PerlIO_close(rsfp); |
90248788 TB |
393 | if (e_fp == rsfp) |
394 | e_fp = Nullfp; | |
8990e307 | 395 | rsfp = Nullfp; |
463ee0b2 LW |
396 | return s; |
397 | } | |
fd049845 | 398 | linestart = bufptr = s + prevlen; |
399 | bufend = s + SvCUR(linestr); | |
400 | s = bufptr; | |
a0d0e21e | 401 | incline(s); |
84902520 | 402 | if (PERLDB_LINE && curstash != debstash) { |
8990e307 LW |
403 | SV *sv = NEWSV(85,0); |
404 | ||
405 | sv_upgrade(sv, SVt_PVMG); | |
fd049845 | 406 | sv_setpvn(sv,bufptr,bufend-bufptr); |
8990e307 LW |
407 | av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv); |
408 | } | |
463ee0b2 | 409 | } |
a687059c | 410 | } |
378cc40b | 411 | |
8990e307 | 412 | static void |
2f3197b3 LW |
413 | check_uni() { |
414 | char *s; | |
415 | char ch; | |
a0d0e21e | 416 | char *t; |
2f3197b3 LW |
417 | |
418 | if (oldoldbufptr != last_uni) | |
419 | return; | |
420 | while (isSPACE(*last_uni)) | |
421 | last_uni++; | |
e334a159 | 422 | for (s = last_uni; isALNUM(*s) || *s == '-'; s++) ; |
a0d0e21e LW |
423 | if ((t = strchr(s, '(')) && t < bufptr) |
424 | return; | |
2f3197b3 LW |
425 | ch = *s; |
426 | *s = '\0'; | |
427 | warn("Warning: Use of \"%s\" without parens is ambiguous", last_uni); | |
428 | *s = ch; | |
429 | } | |
430 | ||
ffed7fef LW |
431 | #ifdef CRIPPLED_CC |
432 | ||
433 | #undef UNI | |
ffed7fef | 434 | #define UNI(f) return uni(f,s) |
ffed7fef | 435 | |
8990e307 | 436 | static int |
ffed7fef | 437 | uni(f,s) |
79072805 | 438 | I32 f; |
ffed7fef LW |
439 | char *s; |
440 | { | |
441 | yylval.ival = f; | |
79072805 | 442 | expect = XTERM; |
ffed7fef | 443 | bufptr = s; |
2f3197b3 | 444 | last_uni = oldbufptr; |
a0d0e21e | 445 | last_lop_op = f; |
ffed7fef LW |
446 | if (*s == '(') |
447 | return FUNC1; | |
448 | s = skipspace(s); | |
449 | if (*s == '(') | |
450 | return FUNC1; | |
451 | else | |
452 | return UNIOP; | |
453 | } | |
454 | ||
a0d0e21e LW |
455 | #endif /* CRIPPLED_CC */ |
456 | ||
457 | #define LOP(f,x) return lop(f,x,s) | |
458 | ||
8990e307 | 459 | static I32 |
f86702cc | 460 | lop |
461 | #ifdef CAN_PROTOTYPE | |
462 | (I32 f, expectation x, char *s) | |
463 | #else | |
464 | (f,x,s) | |
79072805 | 465 | I32 f; |
a0d0e21e | 466 | expectation x; |
ffed7fef | 467 | char *s; |
f86702cc | 468 | #endif /* CAN_PROTOTYPE */ |
ffed7fef | 469 | { |
0f15f207 | 470 | dTHR; |
79072805 | 471 | yylval.ival = f; |
35c8bce7 | 472 | CLINE; |
a0d0e21e | 473 | expect = x; |
79072805 | 474 | bufptr = s; |
8990e307 LW |
475 | last_lop = oldbufptr; |
476 | last_lop_op = f; | |
a0d0e21e LW |
477 | if (nexttoke) |
478 | return LSTOP; | |
79072805 LW |
479 | if (*s == '(') |
480 | return FUNC; | |
481 | s = skipspace(s); | |
482 | if (*s == '(') | |
483 | return FUNC; | |
484 | else | |
485 | return LSTOP; | |
486 | } | |
487 | ||
8990e307 | 488 | static void |
79072805 LW |
489 | force_next(type) |
490 | I32 type; | |
491 | { | |
492 | nexttype[nexttoke] = type; | |
493 | nexttoke++; | |
494 | if (lex_state != LEX_KNOWNEXT) { | |
495 | lex_defer = lex_state; | |
463ee0b2 | 496 | lex_expect = expect; |
79072805 LW |
497 | lex_state = LEX_KNOWNEXT; |
498 | } | |
499 | } | |
500 | ||
8990e307 | 501 | static char * |
a0d0e21e | 502 | force_word(start,token,check_keyword,allow_pack,allow_tick) |
463ee0b2 | 503 | register char *start; |
79072805 | 504 | int token; |
463ee0b2 | 505 | int check_keyword; |
a0d0e21e | 506 | int allow_pack; |
463ee0b2 | 507 | int allow_tick; |
79072805 | 508 | { |
463ee0b2 LW |
509 | register char *s; |
510 | STRLEN len; | |
511 | ||
512 | start = skipspace(start); | |
513 | s = start; | |
a0d0e21e LW |
514 | if (isIDFIRST(*s) || |
515 | (allow_pack && *s == ':') || | |
516 | (allow_tick && *s == '\'') ) | |
517 | { | |
8903cb82 | 518 | s = scan_word(s, tokenbuf, sizeof tokenbuf, allow_pack, &len); |
463ee0b2 LW |
519 | if (check_keyword && keyword(tokenbuf, len)) |
520 | return start; | |
521 | if (token == METHOD) { | |
522 | s = skipspace(s); | |
523 | if (*s == '(') | |
524 | expect = XTERM; | |
525 | else { | |
526 | expect = XOPERATOR; | |
527 | force_next(')'); | |
528 | force_next('('); | |
529 | } | |
79072805 | 530 | } |
463ee0b2 | 531 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST,0, newSVpv(tokenbuf,0)); |
8990e307 | 532 | nextval[nexttoke].opval->op_private |= OPpCONST_BARE; |
79072805 LW |
533 | force_next(token); |
534 | } | |
535 | return s; | |
536 | } | |
537 | ||
8990e307 | 538 | static void |
a0d0e21e | 539 | force_ident(s, kind) |
79072805 | 540 | register char *s; |
a0d0e21e | 541 | int kind; |
79072805 LW |
542 | { |
543 | if (s && *s) { | |
11343788 MB |
544 | OP* o = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0)); |
545 | nextval[nexttoke].opval = o; | |
79072805 | 546 | force_next(WORD); |
748a9306 | 547 | if (kind) { |
e858de61 | 548 | dTHR; /* just for in_eval */ |
11343788 | 549 | o->op_private = OPpCONST_ENTERED; |
55497cff | 550 | /* XXX see note in pp_entereval() for why we forgo typo |
551 | warnings if the symbol must be introduced in an eval. | |
552 | GSAR 96-10-12 */ | |
553 | gv_fetchpv(s, in_eval ? GV_ADDMULTI : TRUE, | |
a0d0e21e LW |
554 | kind == '$' ? SVt_PV : |
555 | kind == '@' ? SVt_PVAV : | |
556 | kind == '%' ? SVt_PVHV : | |
557 | SVt_PVGV | |
558 | ); | |
748a9306 | 559 | } |
79072805 LW |
560 | } |
561 | } | |
562 | ||
89bfa8cd | 563 | static char * |
564 | force_version(s) | |
565 | char *s; | |
566 | { | |
567 | OP *version = Nullop; | |
568 | ||
569 | s = skipspace(s); | |
570 | ||
571 | /* default VERSION number -- GBARR */ | |
572 | ||
573 | if(isDIGIT(*s)) { | |
574 | char *d; | |
575 | int c; | |
55497cff | 576 | for( d=s, c = 1; isDIGIT(*d) || *d == '_' || (*d == '.' && c--); d++); |
89bfa8cd | 577 | if((*d == ';' || isSPACE(*d)) && *(skipspace(d)) != ',') { |
578 | s = scan_num(s); | |
579 | /* real VERSION number -- GBARR */ | |
580 | version = yylval.opval; | |
581 | } | |
582 | } | |
583 | ||
584 | /* NOTE: The parser sees the package name and the VERSION swapped */ | |
585 | nextval[nexttoke].opval = version; | |
586 | force_next(WORD); | |
587 | ||
588 | return (s); | |
589 | } | |
590 | ||
8990e307 | 591 | static SV * |
79072805 LW |
592 | q(sv) |
593 | SV *sv; | |
594 | { | |
595 | register char *s; | |
596 | register char *send; | |
597 | register char *d; | |
463ee0b2 | 598 | STRLEN len; |
79072805 LW |
599 | |
600 | if (!SvLEN(sv)) | |
601 | return sv; | |
602 | ||
a0d0e21e | 603 | s = SvPV_force(sv, len); |
748a9306 LW |
604 | if (SvIVX(sv) == -1) |
605 | return sv; | |
463ee0b2 | 606 | send = s + len; |
79072805 LW |
607 | while (s < send && *s != '\\') |
608 | s++; | |
609 | if (s == send) | |
610 | return sv; | |
611 | d = s; | |
79072805 LW |
612 | while (s < send) { |
613 | if (*s == '\\') { | |
a0d0e21e | 614 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
615 | s++; /* all that, just for this */ |
616 | } | |
617 | *d++ = *s++; | |
618 | } | |
619 | *d = '\0'; | |
463ee0b2 | 620 | SvCUR_set(sv, d - SvPVX(sv)); |
79072805 LW |
621 | |
622 | return sv; | |
623 | } | |
624 | ||
8990e307 | 625 | static I32 |
79072805 LW |
626 | sublex_start() |
627 | { | |
628 | register I32 op_type = yylval.ival; | |
79072805 LW |
629 | |
630 | if (op_type == OP_NULL) { | |
631 | yylval.opval = lex_op; | |
632 | lex_op = Nullop; | |
633 | return THING; | |
634 | } | |
635 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
1c9c84df CS |
636 | SV *sv = q(lex_stuff); |
637 | STRLEN len; | |
638 | char *p = SvPV(sv, len); | |
639 | yylval.opval = (OP*)newSVOP(op_type, 0, newSVpv(p, len)); | |
640 | SvREFCNT_dec(sv); | |
79072805 LW |
641 | lex_stuff = Nullsv; |
642 | return THING; | |
643 | } | |
644 | ||
55497cff | 645 | sublex_info.super_state = lex_state; |
646 | sublex_info.sub_inwhat = op_type; | |
647 | sublex_info.sub_op = lex_op; | |
648 | lex_state = LEX_INTERPPUSH; | |
649 | ||
650 | expect = XTERM; | |
651 | if (lex_op) { | |
652 | yylval.opval = lex_op; | |
653 | lex_op = Nullop; | |
654 | return PMFUNC; | |
655 | } | |
656 | else | |
657 | return FUNC; | |
658 | } | |
659 | ||
660 | static I32 | |
661 | sublex_push() | |
662 | { | |
0f15f207 | 663 | dTHR; |
79072805 | 664 | push_scope(); |
55497cff | 665 | |
666 | lex_state = sublex_info.super_state; | |
667 | SAVEI32(lex_dojoin); | |
668 | SAVEI32(lex_brackets); | |
669 | SAVEI32(lex_fakebrack); | |
670 | SAVEI32(lex_casemods); | |
671 | SAVEI32(lex_starts); | |
672 | SAVEI32(lex_state); | |
a0d0e21e | 673 | SAVESPTR(lex_inpat); |
55497cff | 674 | SAVEI32(lex_inwhat); |
675 | SAVEI16(curcop->cop_line); | |
85e6fe83 LW |
676 | SAVEPPTR(bufptr); |
677 | SAVEPPTR(oldbufptr); | |
678 | SAVEPPTR(oldoldbufptr); | |
fd049845 | 679 | SAVEPPTR(linestart); |
79072805 | 680 | SAVESPTR(linestr); |
85e6fe83 | 681 | SAVEPPTR(lex_brackstack); |
a0d0e21e | 682 | SAVEPPTR(lex_casestack); |
79072805 LW |
683 | |
684 | linestr = lex_stuff; | |
685 | lex_stuff = Nullsv; | |
686 | ||
fd049845 | 687 | bufend = bufptr = oldbufptr = oldoldbufptr = linestart = SvPVX(linestr); |
79072805 | 688 | bufend += SvCUR(linestr); |
8990e307 | 689 | SAVEFREESV(linestr); |
79072805 LW |
690 | |
691 | lex_dojoin = FALSE; | |
692 | lex_brackets = 0; | |
693 | lex_fakebrack = 0; | |
8990e307 | 694 | New(899, lex_brackstack, 120, char); |
a0d0e21e | 695 | New(899, lex_casestack, 12, char); |
8990e307 | 696 | SAVEFREEPV(lex_brackstack); |
a0d0e21e | 697 | SAVEFREEPV(lex_casestack); |
79072805 | 698 | lex_casemods = 0; |
a0d0e21e | 699 | *lex_casestack = '\0'; |
79072805 LW |
700 | lex_starts = 0; |
701 | lex_state = LEX_INTERPCONCAT; | |
702 | curcop->cop_line = multi_start; | |
703 | ||
55497cff | 704 | lex_inwhat = sublex_info.sub_inwhat; |
705 | if (lex_inwhat == OP_MATCH || lex_inwhat == OP_SUBST) | |
706 | lex_inpat = sublex_info.sub_op; | |
79072805 | 707 | else |
55497cff | 708 | lex_inpat = Nullop; |
79072805 | 709 | |
55497cff | 710 | return '('; |
79072805 LW |
711 | } |
712 | ||
8990e307 | 713 | static I32 |
79072805 LW |
714 | sublex_done() |
715 | { | |
716 | if (!lex_starts++) { | |
717 | expect = XOPERATOR; | |
93a17b20 | 718 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv("",0)); |
79072805 LW |
719 | return THING; |
720 | } | |
721 | ||
722 | if (lex_casemods) { /* oops, we've got some unbalanced parens */ | |
723 | lex_state = LEX_INTERPCASEMOD; | |
724 | return yylex(); | |
725 | } | |
726 | ||
79072805 LW |
727 | /* Is there a right-hand side to take care of? */ |
728 | if (lex_repl && (lex_inwhat == OP_SUBST || lex_inwhat == OP_TRANS)) { | |
729 | linestr = lex_repl; | |
730 | lex_inpat = 0; | |
fd049845 | 731 | bufend = bufptr = oldbufptr = oldoldbufptr = linestart = SvPVX(linestr); |
79072805 | 732 | bufend += SvCUR(linestr); |
8990e307 | 733 | SAVEFREESV(linestr); |
79072805 LW |
734 | lex_dojoin = FALSE; |
735 | lex_brackets = 0; | |
736 | lex_fakebrack = 0; | |
737 | lex_casemods = 0; | |
a0d0e21e | 738 | *lex_casestack = '\0'; |
79072805 LW |
739 | lex_starts = 0; |
740 | if (SvCOMPILED(lex_repl)) { | |
741 | lex_state = LEX_INTERPNORMAL; | |
742 | lex_starts++; | |
743 | } | |
744 | else | |
745 | lex_state = LEX_INTERPCONCAT; | |
746 | lex_repl = Nullsv; | |
747 | return ','; | |
ffed7fef LW |
748 | } |
749 | else { | |
79072805 | 750 | pop_scope(); |
463ee0b2 | 751 | bufend = SvPVX(linestr); |
79072805 LW |
752 | bufend += SvCUR(linestr); |
753 | expect = XOPERATOR; | |
754 | return ')'; | |
ffed7fef LW |
755 | } |
756 | } | |
757 | ||
8990e307 | 758 | static char * |
79072805 LW |
759 | scan_const(start) |
760 | char *start; | |
761 | { | |
762 | register char *send = bufend; | |
763 | SV *sv = NEWSV(93, send - start); | |
764 | register char *s = start; | |
463ee0b2 | 765 | register char *d = SvPVX(sv); |
79072805 LW |
766 | bool dorange = FALSE; |
767 | I32 len; | |
72aaf631 | 768 | char *leaveit = |
79072805 | 769 | lex_inpat |
748a9306 | 770 | ? "\\.^$@AGZdDwWsSbB+*?|()-nrtfeaxc0123456789[{]} \t\n\r\f\v#" |
79072805 LW |
771 | : (lex_inwhat & OP_TRANS) |
772 | ? "" | |
773 | : ""; | |
774 | ||
775 | while (s < send || dorange) { | |
776 | if (lex_inwhat == OP_TRANS) { | |
777 | if (dorange) { | |
778 | I32 i; | |
779 | I32 max; | |
463ee0b2 | 780 | i = d - SvPVX(sv); |
79072805 | 781 | SvGROW(sv, SvLEN(sv) + 256); |
463ee0b2 | 782 | d = SvPVX(sv) + i; |
79072805 | 783 | d -= 2; |
91b7def8 | 784 | max = (U8)d[1]; |
785 | for (i = (U8)*d; i <= max; i++) | |
79072805 LW |
786 | *d++ = i; |
787 | dorange = FALSE; | |
788 | continue; | |
789 | } | |
790 | else if (*s == '-' && s+1 < send && s != start) { | |
791 | dorange = TRUE; | |
792 | s++; | |
793 | } | |
794 | } | |
748a9306 LW |
795 | else if (*s == '(' && lex_inpat && s[1] == '?' && s[2] == '#') { |
796 | while (s < send && *s != ')') | |
797 | *d++ = *s++; | |
798 | } | |
799 | else if (*s == '#' && lex_inpat && | |
800 | ((PMOP*)lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
801 | while (s+1 < send && *s != '\n') | |
802 | *d++ = *s++; | |
803 | } | |
a0d0e21e | 804 | else if (*s == '@' && s[1] && (isALNUM(s[1]) || strchr(":'{$", s[1]))) |
79072805 LW |
805 | break; |
806 | else if (*s == '$') { | |
807 | if (!lex_inpat) /* not a regexp, so $ must be var */ | |
808 | break; | |
a0d0e21e | 809 | if (s + 1 < send && !strchr(")| \n\t", s[1])) |
79072805 LW |
810 | break; /* in regexp, $ might be tail anchor */ |
811 | } | |
812 | if (*s == '\\' && s+1 < send) { | |
813 | s++; | |
72aaf631 | 814 | if (*s && strchr(leaveit, *s)) { |
79072805 LW |
815 | *d++ = '\\'; |
816 | *d++ = *s++; | |
817 | continue; | |
818 | } | |
819 | if (lex_inwhat == OP_SUBST && !lex_inpat && | |
a0d0e21e | 820 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 821 | { |
a0d0e21e LW |
822 | if (dowarn) |
823 | warn("\\%c better written as $%c", *s, *s); | |
79072805 LW |
824 | *--s = '$'; |
825 | break; | |
826 | } | |
a0d0e21e | 827 | if (lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
828 | --s; |
829 | break; | |
830 | } | |
831 | switch (*s) { | |
832 | case '-': | |
833 | if (lex_inwhat == OP_TRANS) { | |
834 | *d++ = *s++; | |
835 | continue; | |
836 | } | |
837 | /* FALL THROUGH */ | |
838 | default: | |
839 | *d++ = *s++; | |
840 | continue; | |
841 | case '0': case '1': case '2': case '3': | |
842 | case '4': case '5': case '6': case '7': | |
843 | *d++ = scan_oct(s, 3, &len); | |
844 | s += len; | |
845 | continue; | |
846 | case 'x': | |
847 | *d++ = scan_hex(++s, 2, &len); | |
848 | s += len; | |
849 | continue; | |
850 | case 'c': | |
851 | s++; | |
bbce6d69 | 852 | len = *s++; |
853 | *d++ = toCTRL(len); | |
79072805 LW |
854 | continue; |
855 | case 'b': | |
856 | *d++ = '\b'; | |
857 | break; | |
858 | case 'n': | |
859 | *d++ = '\n'; | |
860 | break; | |
861 | case 'r': | |
862 | *d++ = '\r'; | |
863 | break; | |
864 | case 'f': | |
865 | *d++ = '\f'; | |
866 | break; | |
867 | case 't': | |
868 | *d++ = '\t'; | |
869 | break; | |
870 | case 'e': | |
871 | *d++ = '\033'; | |
872 | break; | |
873 | case 'a': | |
874 | *d++ = '\007'; | |
875 | break; | |
876 | } | |
877 | s++; | |
878 | continue; | |
879 | } | |
880 | *d++ = *s++; | |
881 | } | |
882 | *d = '\0'; | |
463ee0b2 | 883 | SvCUR_set(sv, d - SvPVX(sv)); |
79072805 LW |
884 | SvPOK_on(sv); |
885 | ||
886 | if (SvCUR(sv) + 5 < SvLEN(sv)) { | |
887 | SvLEN_set(sv, SvCUR(sv) + 1); | |
463ee0b2 | 888 | Renew(SvPVX(sv), SvLEN(sv), char); |
79072805 LW |
889 | } |
890 | if (s > bufptr) | |
891 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); | |
892 | else | |
8990e307 | 893 | SvREFCNT_dec(sv); |
79072805 LW |
894 | return s; |
895 | } | |
896 | ||
897 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ | |
8990e307 | 898 | static int |
79072805 LW |
899 | intuit_more(s) |
900 | register char *s; | |
901 | { | |
902 | if (lex_brackets) | |
903 | return TRUE; | |
904 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
905 | return TRUE; | |
906 | if (*s != '{' && *s != '[') | |
907 | return FALSE; | |
908 | if (!lex_inpat) | |
909 | return TRUE; | |
910 | ||
911 | /* In a pattern, so maybe we have {n,m}. */ | |
912 | if (*s == '{') { | |
913 | s++; | |
914 | if (!isDIGIT(*s)) | |
915 | return TRUE; | |
916 | while (isDIGIT(*s)) | |
917 | s++; | |
918 | if (*s == ',') | |
919 | s++; | |
920 | while (isDIGIT(*s)) | |
921 | s++; | |
922 | if (*s == '}') | |
923 | return FALSE; | |
924 | return TRUE; | |
925 | ||
926 | } | |
927 | ||
928 | /* On the other hand, maybe we have a character class */ | |
929 | ||
930 | s++; | |
931 | if (*s == ']' || *s == '^') | |
932 | return FALSE; | |
933 | else { | |
934 | int weight = 2; /* let's weigh the evidence */ | |
935 | char seen[256]; | |
936 | unsigned char un_char = 0, last_un_char; | |
93a17b20 | 937 | char *send = strchr(s,']'); |
8903cb82 | 938 | char tmpbuf[sizeof tokenbuf * 4]; |
79072805 LW |
939 | |
940 | if (!send) /* has to be an expression */ | |
941 | return TRUE; | |
942 | ||
943 | Zero(seen,256,char); | |
944 | if (*s == '$') | |
945 | weight -= 3; | |
946 | else if (isDIGIT(*s)) { | |
947 | if (s[1] != ']') { | |
948 | if (isDIGIT(s[1]) && s[2] == ']') | |
949 | weight -= 10; | |
950 | } | |
951 | else | |
952 | weight -= 100; | |
953 | } | |
954 | for (; s < send; s++) { | |
955 | last_un_char = un_char; | |
956 | un_char = (unsigned char)*s; | |
957 | switch (*s) { | |
958 | case '@': | |
959 | case '&': | |
960 | case '$': | |
961 | weight -= seen[un_char] * 10; | |
962 | if (isALNUM(s[1])) { | |
8903cb82 | 963 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
a0d0e21e | 964 | if ((int)strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE, SVt_PV)) |
79072805 LW |
965 | weight -= 100; |
966 | else | |
967 | weight -= 10; | |
968 | } | |
969 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
970 | strchr("[#!%*<>()-=",s[1])) { |
971 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
972 | weight -= 10; |
973 | else | |
974 | weight -= 1; | |
975 | } | |
976 | break; | |
977 | case '\\': | |
978 | un_char = 254; | |
979 | if (s[1]) { | |
93a17b20 | 980 | if (strchr("wds]",s[1])) |
79072805 LW |
981 | weight += 100; |
982 | else if (seen['\''] || seen['"']) | |
983 | weight += 1; | |
93a17b20 | 984 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
985 | weight += 40; |
986 | else if (isDIGIT(s[1])) { | |
987 | weight += 40; | |
988 | while (s[1] && isDIGIT(s[1])) | |
989 | s++; | |
990 | } | |
991 | } | |
992 | else | |
993 | weight += 100; | |
994 | break; | |
995 | case '-': | |
996 | if (s[1] == '\\') | |
997 | weight += 50; | |
93a17b20 | 998 | if (strchr("aA01! ",last_un_char)) |
79072805 | 999 | weight += 30; |
93a17b20 | 1000 | if (strchr("zZ79~",s[1])) |
79072805 LW |
1001 | weight += 30; |
1002 | break; | |
1003 | default: | |
93a17b20 | 1004 | if (!isALNUM(last_un_char) && !strchr("$@&",last_un_char) && |
79072805 LW |
1005 | isALPHA(*s) && s[1] && isALPHA(s[1])) { |
1006 | char *d = tmpbuf; | |
1007 | while (isALPHA(*s)) | |
1008 | *d++ = *s++; | |
1009 | *d = '\0'; | |
1010 | if (keyword(tmpbuf, d - tmpbuf)) | |
1011 | weight -= 150; | |
1012 | } | |
1013 | if (un_char == last_un_char + 1) | |
1014 | weight += 5; | |
1015 | weight -= seen[un_char]; | |
1016 | break; | |
1017 | } | |
1018 | seen[un_char]++; | |
1019 | } | |
1020 | if (weight >= 0) /* probably a character class */ | |
1021 | return FALSE; | |
1022 | } | |
1023 | ||
1024 | return TRUE; | |
1025 | } | |
ffed7fef | 1026 | |
a0d0e21e LW |
1027 | static int |
1028 | intuit_method(start,gv) | |
1029 | char *start; | |
1030 | GV *gv; | |
1031 | { | |
1032 | char *s = start + (*start == '$'); | |
8903cb82 | 1033 | char tmpbuf[sizeof tokenbuf]; |
a0d0e21e LW |
1034 | STRLEN len; |
1035 | GV* indirgv; | |
1036 | ||
1037 | if (gv) { | |
1038 | if (GvIO(gv)) | |
1039 | return 0; | |
8ebc5c01 | 1040 | if (!GvCVu(gv)) |
a0d0e21e LW |
1041 | gv = 0; |
1042 | } | |
8903cb82 | 1043 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
a0d0e21e LW |
1044 | if (*start == '$') { |
1045 | if (gv || last_lop_op == OP_PRINT || isUPPER(*tokenbuf)) | |
1046 | return 0; | |
1047 | s = skipspace(s); | |
1048 | bufptr = start; | |
1049 | expect = XREF; | |
1050 | return *s == '(' ? FUNCMETH : METHOD; | |
1051 | } | |
1052 | if (!keyword(tmpbuf, len)) { | |
1053 | indirgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVCV); | |
8ebc5c01 | 1054 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
1055 | return 0; |
1056 | /* filehandle or package name makes it a method */ | |
89bfa8cd | 1057 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) { |
a0d0e21e | 1058 | s = skipspace(s); |
55497cff | 1059 | if ((bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
1060 | return 0; /* no assumptions -- "=>" quotes bearword */ | |
a0d0e21e LW |
1061 | nextval[nexttoke].opval = |
1062 | (OP*)newSVOP(OP_CONST, 0, | |
1063 | newSVpv(tmpbuf,0)); | |
1064 | nextval[nexttoke].opval->op_private = | |
1065 | OPpCONST_BARE; | |
1066 | expect = XTERM; | |
1067 | force_next(WORD); | |
1068 | bufptr = s; | |
1069 | return *s == '(' ? FUNCMETH : METHOD; | |
1070 | } | |
1071 | } | |
1072 | return 0; | |
1073 | } | |
1074 | ||
1075 | static char* | |
1076 | incl_perldb() | |
1077 | { | |
1078 | if (perldb) { | |
1079 | char *pdb = getenv("PERL5DB"); | |
1080 | ||
1081 | if (pdb) | |
1082 | return pdb; | |
1083 | return "BEGIN { require 'perl5db.pl' }"; | |
1084 | } | |
1085 | return ""; | |
1086 | } | |
1087 | ||
1088 | ||
16d20bd9 AD |
1089 | /* Encoded script support. filter_add() effectively inserts a |
1090 | * 'pre-processing' function into the current source input stream. | |
1091 | * Note that the filter function only applies to the current source file | |
1092 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
1093 | * | |
1094 | * The datasv parameter (which may be NULL) can be used to pass | |
1095 | * private data to this instance of the filter. The filter function | |
1096 | * can recover the SV using the FILTER_DATA macro and use it to | |
1097 | * store private buffers and state information. | |
1098 | * | |
1099 | * The supplied datasv parameter is upgraded to a PVIO type | |
1100 | * and the IoDIRP field is used to store the function pointer. | |
1101 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for | |
1102 | * private use must be set using malloc'd pointers. | |
1103 | */ | |
1104 | static int filter_debug = 0; | |
1105 | ||
1106 | SV * | |
1107 | filter_add(funcp, datasv) | |
1108 | filter_t funcp; | |
1109 | SV *datasv; | |
1110 | { | |
1111 | if (!funcp){ /* temporary handy debugging hack to be deleted */ | |
1112 | filter_debug = atoi((char*)datasv); | |
1113 | return NULL; | |
1114 | } | |
1115 | if (!rsfp_filters) | |
1116 | rsfp_filters = newAV(); | |
1117 | if (!datasv) | |
1118 | datasv = newSV(0); | |
1119 | if (!SvUPGRADE(datasv, SVt_PVIO)) | |
1120 | die("Can't upgrade filter_add data to SVt_PVIO"); | |
1121 | IoDIRP(datasv) = (DIR*)funcp; /* stash funcp into spare field */ | |
1122 | if (filter_debug) | |
ff0cee69 | 1123 | warn("filter_add func %p (%s)", funcp, SvPV(datasv,na)); |
e50aee73 AD |
1124 | av_unshift(rsfp_filters, 1); |
1125 | av_store(rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
1126 | return(datasv); |
1127 | } | |
1128 | ||
1129 | ||
1130 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 1131 | void |
16d20bd9 AD |
1132 | filter_del(funcp) |
1133 | filter_t funcp; | |
1134 | { | |
1135 | if (filter_debug) | |
ff0cee69 | 1136 | warn("filter_del func %p", funcp); |
16d20bd9 AD |
1137 | if (!rsfp_filters || AvFILL(rsfp_filters)<0) |
1138 | return; | |
1139 | /* if filter is on top of stack (usual case) just pop it off */ | |
e50aee73 AD |
1140 | if (IoDIRP(FILTER_DATA(0)) == (void*)funcp){ |
1141 | /* sv_free(av_pop(rsfp_filters)); */ | |
1142 | sv_free(av_shift(rsfp_filters)); | |
1143 | ||
16d20bd9 AD |
1144 | return; |
1145 | } | |
1146 | /* we need to search for the correct entry and clear it */ | |
1147 | die("filter_del can only delete in reverse order (currently)"); | |
1148 | } | |
1149 | ||
1150 | ||
1151 | /* Invoke the n'th filter function for the current rsfp. */ | |
1152 | I32 | |
1153 | filter_read(idx, buf_sv, maxlen) | |
1154 | int idx; | |
1155 | SV *buf_sv; | |
1156 | int maxlen; /* 0 = read one text line */ | |
a0d0e21e | 1157 | { |
16d20bd9 AD |
1158 | filter_t funcp; |
1159 | SV *datasv = NULL; | |
e50aee73 | 1160 | |
16d20bd9 AD |
1161 | if (!rsfp_filters) |
1162 | return -1; | |
1163 | if (idx > AvFILL(rsfp_filters)){ /* Any more filters? */ | |
1164 | /* Provide a default input filter to make life easy. */ | |
1165 | /* Note that we append to the line. This is handy. */ | |
16d20bd9 AD |
1166 | if (filter_debug) |
1167 | warn("filter_read %d: from rsfp\n", idx); | |
1168 | if (maxlen) { | |
1169 | /* Want a block */ | |
1170 | int len ; | |
1171 | int old_len = SvCUR(buf_sv) ; | |
1172 | ||
1173 | /* ensure buf_sv is large enough */ | |
1174 | SvGROW(buf_sv, old_len + maxlen) ; | |
760ac839 LW |
1175 | if ((len = PerlIO_read(rsfp, SvPVX(buf_sv) + old_len, maxlen)) <= 0){ |
1176 | if (PerlIO_error(rsfp)) | |
37120919 AD |
1177 | return -1; /* error */ |
1178 | else | |
1179 | return 0 ; /* end of file */ | |
1180 | } | |
16d20bd9 AD |
1181 | SvCUR_set(buf_sv, old_len + len) ; |
1182 | } else { | |
1183 | /* Want a line */ | |
37120919 | 1184 | if (sv_gets(buf_sv, rsfp, SvCUR(buf_sv)) == NULL) { |
760ac839 | 1185 | if (PerlIO_error(rsfp)) |
37120919 AD |
1186 | return -1; /* error */ |
1187 | else | |
1188 | return 0 ; /* end of file */ | |
1189 | } | |
16d20bd9 AD |
1190 | } |
1191 | return SvCUR(buf_sv); | |
1192 | } | |
1193 | /* Skip this filter slot if filter has been deleted */ | |
1194 | if ( (datasv = FILTER_DATA(idx)) == &sv_undef){ | |
1195 | if (filter_debug) | |
1196 | warn("filter_read %d: skipped (filter deleted)\n", idx); | |
1197 | return FILTER_READ(idx+1, buf_sv, maxlen); /* recurse */ | |
1198 | } | |
1199 | /* Get function pointer hidden within datasv */ | |
1200 | funcp = (filter_t)IoDIRP(datasv); | |
1201 | if (filter_debug) | |
ff0cee69 | 1202 | warn("filter_read %d: via function %p (%s)\n", |
16d20bd9 AD |
1203 | idx, funcp, SvPV(datasv,na)); |
1204 | /* Call function. The function is expected to */ | |
1205 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 1206 | /* Return: <0:error, =0:eof, >0:not eof */ |
16d20bd9 AD |
1207 | return (*funcp)(idx, buf_sv, maxlen); |
1208 | } | |
1209 | ||
1210 | static char * | |
fd049845 | 1211 | filter_gets(sv,fp, append) |
16d20bd9 | 1212 | register SV *sv; |
760ac839 | 1213 | register PerlIO *fp; |
fd049845 | 1214 | STRLEN append; |
16d20bd9 AD |
1215 | { |
1216 | if (rsfp_filters) { | |
1217 | ||
55497cff | 1218 | if (!append) |
1219 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
1220 | if (FILTER_READ(0, sv, 0) > 0) |
1221 | return ( SvPVX(sv) ) ; | |
1222 | else | |
1223 | return Nullch ; | |
1224 | } | |
1225 | else | |
fd049845 | 1226 | return (sv_gets(sv, fp, append)); |
16d20bd9 | 1227 | |
a0d0e21e LW |
1228 | } |
1229 | ||
1230 | ||
748a9306 LW |
1231 | #ifdef DEBUGGING |
1232 | static char* exp_name[] = | |
a0d0e21e | 1233 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "TERMBLOCK" }; |
748a9306 | 1234 | #endif |
463ee0b2 | 1235 | |
71be2cbc | 1236 | EXT int yychar; /* last token */ |
463ee0b2 | 1237 | |
2f3197b3 | 1238 | int |
378cc40b LW |
1239 | yylex() |
1240 | { | |
11343788 | 1241 | dTHR; |
79072805 | 1242 | register char *s; |
378cc40b | 1243 | register char *d; |
79072805 | 1244 | register I32 tmp; |
463ee0b2 | 1245 | STRLEN len; |
a687059c | 1246 | |
bbce6d69 | 1247 | if (pending_ident) { |
1248 | char pit = pending_ident; | |
1249 | pending_ident = 0; | |
1250 | ||
1251 | if (in_my) { | |
1252 | if (strchr(tokenbuf,':')) | |
1253 | croak(no_myglob,tokenbuf); | |
1254 | yylval.opval = newOP(OP_PADANY, 0); | |
1255 | yylval.opval->op_targ = pad_allocmy(tokenbuf); | |
1256 | return PRIVATEREF; | |
1257 | } | |
1258 | ||
5dc0d613 MB |
1259 | if (!strchr(tokenbuf,':') |
1260 | && (tmp = pad_findmy(tokenbuf)) != NOT_IN_PAD) { | |
bbce6d69 | 1261 | if (last_lop_op == OP_SORT && |
1262 | tokenbuf[0] == '$' && | |
1263 | (tokenbuf[1] == 'a' || tokenbuf[1] == 'b') | |
1264 | && !tokenbuf[2]) | |
1265 | { | |
1266 | for (d = in_eval ? oldoldbufptr : linestart; | |
1267 | d < bufend && *d != '\n'; | |
1268 | d++) | |
1269 | { | |
1270 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
1271 | croak("Can't use \"my %s\" in sort comparison", | |
1272 | tokenbuf); | |
1273 | } | |
1274 | } | |
1275 | } | |
1276 | ||
1277 | yylval.opval = newOP(OP_PADANY, 0); | |
1278 | yylval.opval->op_targ = tmp; | |
1279 | return PRIVATEREF; | |
1280 | } | |
1281 | ||
1282 | /* Force them to make up their mind on "@foo". */ | |
1283 | if (pit == '@' && lex_state != LEX_NORMAL && !lex_brackets) { | |
1284 | GV *gv = gv_fetchpv(tokenbuf+1, FALSE, SVt_PVAV); | |
46fc3d4c | 1285 | if (!gv || ((tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
1286 | yyerror(form("In string, %s now must be written as \\%s", | |
1287 | tokenbuf, tokenbuf)); | |
bbce6d69 | 1288 | } |
1289 | ||
1290 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf+1, 0)); | |
1291 | yylval.opval->op_private = OPpCONST_ENTERED; | |
1292 | gv_fetchpv(tokenbuf+1, in_eval ? GV_ADDMULTI : TRUE, | |
1293 | ((tokenbuf[0] == '$') ? SVt_PV | |
1294 | : (tokenbuf[0] == '@') ? SVt_PVAV | |
1295 | : SVt_PVHV)); | |
1296 | return WORD; | |
1297 | } | |
1298 | ||
79072805 LW |
1299 | switch (lex_state) { |
1300 | #ifdef COMMENTARY | |
1301 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
1302 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
1303 | break; | |
1304 | #endif | |
1305 | ||
1306 | case LEX_KNOWNEXT: | |
1307 | nexttoke--; | |
1308 | yylval = nextval[nexttoke]; | |
463ee0b2 | 1309 | if (!nexttoke) { |
79072805 | 1310 | lex_state = lex_defer; |
463ee0b2 | 1311 | expect = lex_expect; |
a0d0e21e | 1312 | lex_defer = LEX_NORMAL; |
463ee0b2 | 1313 | } |
79072805 LW |
1314 | return(nexttype[nexttoke]); |
1315 | ||
1316 | case LEX_INTERPCASEMOD: | |
1317 | #ifdef DEBUGGING | |
1318 | if (bufptr != bufend && *bufptr != '\\') | |
463ee0b2 | 1319 | croak("panic: INTERPCASEMOD"); |
79072805 LW |
1320 | #endif |
1321 | if (bufptr == bufend || bufptr[1] == 'E') { | |
a0d0e21e | 1322 | char oldmod; |
79072805 | 1323 | if (lex_casemods) { |
a0d0e21e LW |
1324 | oldmod = lex_casestack[--lex_casemods]; |
1325 | lex_casestack[lex_casemods] = '\0'; | |
1326 | if (bufptr != bufend && strchr("LUQ", oldmod)) { | |
1327 | bufptr += 2; | |
1328 | lex_state = LEX_INTERPCONCAT; | |
1329 | } | |
79072805 LW |
1330 | return ')'; |
1331 | } | |
a0d0e21e LW |
1332 | if (bufptr != bufend) |
1333 | bufptr += 2; | |
1334 | lex_state = LEX_INTERPCONCAT; | |
79072805 LW |
1335 | return yylex(); |
1336 | } | |
1337 | else { | |
1338 | s = bufptr + 1; | |
1339 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
1340 | tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */ | |
a0d0e21e LW |
1341 | if (strchr("LU", *s) && |
1342 | (strchr(lex_casestack, 'L') || strchr(lex_casestack, 'U'))) | |
1343 | { | |
1344 | lex_casestack[--lex_casemods] = '\0'; | |
1345 | return ')'; | |
1346 | } | |
1347 | if (lex_casemods > 10) { | |
89bfa8cd | 1348 | char* newlb = Renew(lex_casestack, lex_casemods + 2, char); |
a0d0e21e LW |
1349 | if (newlb != lex_casestack) { |
1350 | SAVEFREEPV(newlb); | |
1351 | lex_casestack = newlb; | |
1352 | } | |
1353 | } | |
1354 | lex_casestack[lex_casemods++] = *s; | |
1355 | lex_casestack[lex_casemods] = '\0'; | |
79072805 LW |
1356 | lex_state = LEX_INTERPCONCAT; |
1357 | nextval[nexttoke].ival = 0; | |
1358 | force_next('('); | |
1359 | if (*s == 'l') | |
1360 | nextval[nexttoke].ival = OP_LCFIRST; | |
1361 | else if (*s == 'u') | |
1362 | nextval[nexttoke].ival = OP_UCFIRST; | |
1363 | else if (*s == 'L') | |
1364 | nextval[nexttoke].ival = OP_LC; | |
1365 | else if (*s == 'U') | |
1366 | nextval[nexttoke].ival = OP_UC; | |
a0d0e21e LW |
1367 | else if (*s == 'Q') |
1368 | nextval[nexttoke].ival = OP_QUOTEMETA; | |
79072805 | 1369 | else |
463ee0b2 | 1370 | croak("panic: yylex"); |
79072805 LW |
1371 | bufptr = s + 1; |
1372 | force_next(FUNC); | |
1373 | if (lex_starts) { | |
1374 | s = bufptr; | |
463ee0b2 | 1375 | lex_starts = 0; |
79072805 LW |
1376 | Aop(OP_CONCAT); |
1377 | } | |
1378 | else | |
1379 | return yylex(); | |
1380 | } | |
1381 | ||
55497cff | 1382 | case LEX_INTERPPUSH: |
1383 | return sublex_push(); | |
1384 | ||
79072805 LW |
1385 | case LEX_INTERPSTART: |
1386 | if (bufptr == bufend) | |
1387 | return sublex_done(); | |
1388 | expect = XTERM; | |
1389 | lex_dojoin = (*bufptr == '@'); | |
1390 | lex_state = LEX_INTERPNORMAL; | |
1391 | if (lex_dojoin) { | |
1392 | nextval[nexttoke].ival = 0; | |
1393 | force_next(','); | |
a0d0e21e | 1394 | force_ident("\"", '$'); |
79072805 LW |
1395 | nextval[nexttoke].ival = 0; |
1396 | force_next('$'); | |
1397 | nextval[nexttoke].ival = 0; | |
1398 | force_next('('); | |
1399 | nextval[nexttoke].ival = OP_JOIN; /* emulate join($", ...) */ | |
1400 | force_next(FUNC); | |
1401 | } | |
1402 | if (lex_starts++) { | |
1403 | s = bufptr; | |
1404 | Aop(OP_CONCAT); | |
1405 | } | |
68dc0745 | 1406 | return yylex(); |
79072805 LW |
1407 | |
1408 | case LEX_INTERPENDMAYBE: | |
1409 | if (intuit_more(bufptr)) { | |
1410 | lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
1411 | break; | |
1412 | } | |
1413 | /* FALL THROUGH */ | |
1414 | ||
1415 | case LEX_INTERPEND: | |
1416 | if (lex_dojoin) { | |
1417 | lex_dojoin = FALSE; | |
1418 | lex_state = LEX_INTERPCONCAT; | |
1419 | return ')'; | |
1420 | } | |
1421 | /* FALLTHROUGH */ | |
1422 | case LEX_INTERPCONCAT: | |
1423 | #ifdef DEBUGGING | |
1424 | if (lex_brackets) | |
463ee0b2 | 1425 | croak("panic: INTERPCONCAT"); |
79072805 LW |
1426 | #endif |
1427 | if (bufptr == bufend) | |
1428 | return sublex_done(); | |
1429 | ||
ed6116ce | 1430 | if (SvIVX(linestr) == '\'') { |
79072805 LW |
1431 | SV *sv = newSVsv(linestr); |
1432 | if (!lex_inpat) | |
1433 | sv = q(sv); | |
1434 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); | |
1435 | s = bufend; | |
1436 | } | |
1437 | else { | |
1438 | s = scan_const(bufptr); | |
1439 | if (*s == '\\') | |
1440 | lex_state = LEX_INTERPCASEMOD; | |
1441 | else | |
1442 | lex_state = LEX_INTERPSTART; | |
1443 | } | |
1444 | ||
1445 | if (s != bufptr) { | |
1446 | nextval[nexttoke] = yylval; | |
463ee0b2 | 1447 | expect = XTERM; |
79072805 LW |
1448 | force_next(THING); |
1449 | if (lex_starts++) | |
1450 | Aop(OP_CONCAT); | |
1451 | else { | |
1452 | bufptr = s; | |
1453 | return yylex(); | |
1454 | } | |
1455 | } | |
1456 | ||
1457 | return yylex(); | |
a0d0e21e LW |
1458 | case LEX_FORMLINE: |
1459 | lex_state = LEX_NORMAL; | |
1460 | s = scan_formline(bufptr); | |
1461 | if (!lex_formbrack) | |
1462 | goto rightbracket; | |
1463 | OPERATOR(';'); | |
79072805 LW |
1464 | } |
1465 | ||
1466 | s = bufptr; | |
a687059c LW |
1467 | oldoldbufptr = oldbufptr; |
1468 | oldbufptr = s; | |
79072805 | 1469 | DEBUG_p( { |
760ac839 | 1470 | PerlIO_printf(PerlIO_stderr(), "### Tokener expecting %s at %s\n", exp_name[expect], s); |
79072805 | 1471 | } ) |
463ee0b2 LW |
1472 | |
1473 | retry: | |
378cc40b LW |
1474 | switch (*s) { |
1475 | default: | |
54310121 | 1476 | croak("Unrecognized character \\%03o", *s & 255); |
e929a76b LW |
1477 | case 4: |
1478 | case 26: | |
1479 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 1480 | case 0: |
463ee0b2 | 1481 | if (!rsfp) { |
55497cff | 1482 | last_uni = 0; |
1483 | last_lop = 0; | |
463ee0b2 LW |
1484 | if (lex_brackets) |
1485 | yyerror("Missing right bracket"); | |
79072805 | 1486 | TOKEN(0); |
463ee0b2 | 1487 | } |
a687059c LW |
1488 | if (s++ < bufend) |
1489 | goto retry; /* ignore stray nulls */ | |
2f3197b3 | 1490 | last_uni = 0; |
79072805 | 1491 | last_lop = 0; |
a0d0e21e | 1492 | if (!in_eval && !preambled) { |
79072805 | 1493 | preambled = TRUE; |
a0d0e21e | 1494 | sv_setpv(linestr,incl_perldb()); |
91b7def8 | 1495 | if (SvCUR(linestr)) |
1496 | sv_catpv(linestr,";"); | |
1497 | if (preambleav){ | |
1498 | while(AvFILL(preambleav) >= 0) { | |
1499 | SV *tmpsv = av_shift(preambleav); | |
1500 | sv_catsv(linestr, tmpsv); | |
1501 | sv_catpv(linestr, ";"); | |
1502 | sv_free(tmpsv); | |
1503 | } | |
1504 | sv_free((SV*)preambleav); | |
1505 | preambleav = NULL; | |
1506 | } | |
79072805 LW |
1507 | if (minus_n || minus_p) { |
1508 | sv_catpv(linestr, "LINE: while (<>) {"); | |
1509 | if (minus_l) | |
a0d0e21e | 1510 | sv_catpv(linestr,"chomp;"); |
8fd239a7 CS |
1511 | if (minus_a) { |
1512 | GV* gv = gv_fetchpv("::F", TRUE, SVt_PVAV); | |
1513 | if (gv) | |
1514 | GvIMPORTED_AV_on(gv); | |
1515 | if (minus_F) { | |
54310121 | 1516 | if (strchr("/'\"", *splitstr) |
1517 | && strchr(splitstr + 1, *splitstr)) | |
46fc3d4c | 1518 | sv_catpvf(linestr, "@F=split(%s);", splitstr); |
54310121 | 1519 | else { |
1520 | char delim; | |
1521 | s = "'~#\200\1'"; /* surely one char is unused...*/ | |
1522 | while (s[1] && strchr(splitstr, *s)) s++; | |
1523 | delim = *s; | |
46fc3d4c | 1524 | sv_catpvf(linestr, "@F=split(%s%c", |
1525 | "q" + (delim == '\''), delim); | |
1526 | for (s = splitstr; *s; s++) { | |
54310121 | 1527 | if (*s == '\\') |
46fc3d4c | 1528 | sv_catpvn(linestr, "\\", 1); |
1529 | sv_catpvn(linestr, s, 1); | |
54310121 | 1530 | } |
46fc3d4c | 1531 | sv_catpvf(linestr, "%c);", delim); |
54310121 | 1532 | } |
2304df62 AD |
1533 | } |
1534 | else | |
1535 | sv_catpv(linestr,"@F=split(' ');"); | |
1536 | } | |
79072805 | 1537 | } |
a0d0e21e | 1538 | sv_catpv(linestr, "\n"); |
fd049845 | 1539 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
463ee0b2 | 1540 | bufend = SvPVX(linestr) + SvCUR(linestr); |
84902520 | 1541 | if (PERLDB_LINE && curstash != debstash) { |
a0d0e21e LW |
1542 | SV *sv = NEWSV(85,0); |
1543 | ||
1544 | sv_upgrade(sv, SVt_PVMG); | |
1545 | sv_setsv(sv,linestr); | |
1546 | av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv); | |
1547 | } | |
79072805 | 1548 | goto retry; |
a687059c | 1549 | } |
e929a76b | 1550 | do { |
fd049845 | 1551 | if ((s = filter_gets(linestr, rsfp, 0)) == Nullch) { |
e929a76b | 1552 | fake_eof: |
395c3793 | 1553 | if (rsfp) { |
a0d0e21e | 1554 | if (preprocess && !in_eval) |
79072805 | 1555 | (void)my_pclose(rsfp); |
760ac839 LW |
1556 | else if ((PerlIO *)rsfp == PerlIO_stdin()) |
1557 | PerlIO_clearerr(rsfp); | |
395c3793 | 1558 | else |
760ac839 | 1559 | (void)PerlIO_close(rsfp); |
90248788 TB |
1560 | if (e_fp == rsfp) |
1561 | e_fp = Nullfp; | |
395c3793 LW |
1562 | rsfp = Nullfp; |
1563 | } | |
a0d0e21e | 1564 | if (!in_eval && (minus_n || minus_p)) { |
79072805 LW |
1565 | sv_setpv(linestr,minus_p ? ";}continue{print" : ""); |
1566 | sv_catpv(linestr,";}"); | |
fd049845 | 1567 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
463ee0b2 | 1568 | bufend = SvPVX(linestr) + SvCUR(linestr); |
e929a76b LW |
1569 | minus_n = minus_p = 0; |
1570 | goto retry; | |
1571 | } | |
fd049845 | 1572 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
79072805 LW |
1573 | sv_setpv(linestr,""); |
1574 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ | |
378cc40b | 1575 | } |
a0d0e21e LW |
1576 | if (doextract) { |
1577 | if (*s == '#' && s[1] == '!' && instr(s,"perl")) | |
1578 | doextract = FALSE; | |
1579 | ||
1580 | /* Incest with pod. */ | |
1581 | if (*s == '=' && strnEQ(s, "=cut", 4)) { | |
1582 | sv_setpv(linestr, ""); | |
fd049845 | 1583 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
a0d0e21e LW |
1584 | bufend = SvPVX(linestr) + SvCUR(linestr); |
1585 | doextract = FALSE; | |
1586 | } | |
1587 | } | |
463ee0b2 | 1588 | incline(s); |
e929a76b | 1589 | } while (doextract); |
fd049845 | 1590 | oldoldbufptr = oldbufptr = bufptr = linestart = s; |
84902520 | 1591 | if (PERLDB_LINE && curstash != debstash) { |
79072805 | 1592 | SV *sv = NEWSV(85,0); |
a687059c | 1593 | |
93a17b20 | 1594 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
1595 | sv_setsv(sv,linestr); |
1596 | av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv); | |
a687059c | 1597 | } |
463ee0b2 | 1598 | bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 LW |
1599 | if (curcop->cop_line == 1) { |
1600 | while (s < bufend && isSPACE(*s)) | |
1601 | s++; | |
a0d0e21e | 1602 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 1603 | s++; |
44a8e56a | 1604 | d = Nullch; |
1605 | if (!in_eval) { | |
1606 | if (*s == '#' && *(s+1) == '!') | |
1607 | d = s + 2; | |
1608 | #ifdef ALTERNATE_SHEBANG | |
1609 | else { | |
1610 | static char as[] = ALTERNATE_SHEBANG; | |
1611 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) | |
1612 | d = s + (sizeof(as) - 1); | |
1613 | } | |
1614 | #endif /* ALTERNATE_SHEBANG */ | |
1615 | } | |
1616 | if (d) { | |
b8378b72 | 1617 | char *ipath; |
774d564b | 1618 | char *ipathend; |
b8378b72 | 1619 | |
774d564b | 1620 | while (isSPACE(*d)) |
b8378b72 CS |
1621 | d++; |
1622 | ipath = d; | |
774d564b | 1623 | while (*d && !isSPACE(*d)) |
1624 | d++; | |
1625 | ipathend = d; | |
1626 | ||
1627 | #ifdef ARG_ZERO_IS_SCRIPT | |
1628 | if (ipathend > ipath) { | |
1629 | /* | |
1630 | * HP-UX (at least) sets argv[0] to the script name, | |
1631 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
1632 | * at least, set argv[0] to the basename of the Perl | |
1633 | * interpreter. So, having found "#!", we'll set it right. | |
1634 | */ | |
1635 | SV *x = GvSV(gv_fetchpv("\030", TRUE, SVt_PV)); | |
1636 | assert(SvPOK(x) || SvGMAGICAL(x)); | |
9607fc9c | 1637 | if (sv_eq(x, GvSV(curcop->cop_filegv))) { |
774d564b | 1638 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 1639 | SvSETMAGIC(x); |
1640 | } | |
774d564b | 1641 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 1642 | } |
774d564b | 1643 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
1644 | |
1645 | /* | |
1646 | * Look for options. | |
1647 | */ | |
748a9306 LW |
1648 | d = instr(s,"perl -"); |
1649 | if (!d) | |
1650 | d = instr(s,"perl"); | |
44a8e56a | 1651 | #ifdef ALTERNATE_SHEBANG |
1652 | /* | |
1653 | * If the ALTERNATE_SHEBANG on this system starts with a | |
1654 | * character that can be part of a Perl expression, then if | |
1655 | * we see it but not "perl", we're probably looking at the | |
1656 | * start of Perl code, not a request to hand off to some | |
1657 | * other interpreter. Similarly, if "perl" is there, but | |
1658 | * not in the first 'word' of the line, we assume the line | |
1659 | * contains the start of the Perl program. | |
44a8e56a | 1660 | */ |
1661 | if (d && *s != '#') { | |
774d564b | 1662 | char *c = ipath; |
44a8e56a | 1663 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
1664 | c++; | |
1665 | if (c < d) | |
1666 | d = Nullch; /* "perl" not in first word; ignore */ | |
1667 | else | |
1668 | *s = '#'; /* Don't try to parse shebang line */ | |
1669 | } | |
774d564b | 1670 | #endif /* ALTERNATE_SHEBANG */ |
748a9306 | 1671 | if (!d && |
44a8e56a | 1672 | *s == '#' && |
774d564b | 1673 | ipathend > ipath && |
748a9306 LW |
1674 | !minus_c && |
1675 | !instr(s,"indir") && | |
1676 | instr(origargv[0],"perl")) | |
1677 | { | |
9f68db38 | 1678 | char **newargv; |
9f68db38 | 1679 | |
774d564b | 1680 | *ipathend = '\0'; |
1681 | s = ipathend + 1; | |
de3bb511 | 1682 | while (s < bufend && isSPACE(*s)) |
9f68db38 LW |
1683 | s++; |
1684 | if (s < bufend) { | |
1685 | Newz(899,newargv,origargc+3,char*); | |
1686 | newargv[1] = s; | |
de3bb511 | 1687 | while (s < bufend && !isSPACE(*s)) |
9f68db38 LW |
1688 | s++; |
1689 | *s = '\0'; | |
1690 | Copy(origargv+1, newargv+2, origargc+1, char*); | |
1691 | } | |
1692 | else | |
1693 | newargv = origargv; | |
774d564b | 1694 | newargv[0] = ipath; |
1695 | execv(ipath, newargv); | |
1696 | croak("Can't exec %s", ipath); | |
9f68db38 | 1697 | } |
748a9306 | 1698 | if (d) { |
ba6d6ac9 CS |
1699 | U32 oldpdb = perldb; |
1700 | bool oldn = minus_n; | |
1701 | bool oldp = minus_p; | |
748a9306 LW |
1702 | |
1703 | while (*d && !isSPACE(*d)) d++; | |
89bfa8cd | 1704 | while (*d == ' ' || *d == '\t') d++; |
748a9306 LW |
1705 | |
1706 | if (*d++ == '-') { | |
8cc95fdb | 1707 | do { |
1708 | if (*d == 'M' || *d == 'm') { | |
1709 | char *m = d; | |
1710 | while (*d && !isSPACE(*d)) d++; | |
1711 | croak("Too late for \"-%.*s\" option", | |
1712 | (int)(d - m), m); | |
1713 | } | |
1714 | d = moreswitches(d); | |
1715 | } while (d); | |
84902520 | 1716 | if (PERLDB_LINE && !oldpdb || |
b084f20b | 1717 | ( minus_n || minus_p ) && !(oldn || oldp) ) |
1718 | /* if we have already added "LINE: while (<>) {", | |
1719 | we must not do it again */ | |
748a9306 LW |
1720 | { |
1721 | sv_setpv(linestr, ""); | |
fd049845 | 1722 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
748a9306 LW |
1723 | bufend = SvPVX(linestr) + SvCUR(linestr); |
1724 | preambled = FALSE; | |
84902520 | 1725 | if (PERLDB_LINE) |
748a9306 LW |
1726 | (void)gv_fetchfile(origfilename); |
1727 | goto retry; | |
1728 | } | |
a0d0e21e | 1729 | } |
79072805 | 1730 | } |
9f68db38 | 1731 | } |
79072805 | 1732 | } |
85e6fe83 | 1733 | if (lex_formbrack && lex_brackets <= lex_formbrack) { |
a0d0e21e LW |
1734 | bufptr = s; |
1735 | lex_state = LEX_FORMLINE; | |
1736 | return yylex(); | |
ae986130 | 1737 | } |
378cc40b | 1738 | goto retry; |
4fdae800 | 1739 | case '\r': |
54310121 | 1740 | warn("Illegal character \\%03o (carriage return)", '\r'); |
1741 | croak( | |
1742 | "(Maybe you didn't strip carriage returns after a network transfer?)\n"); | |
4fdae800 | 1743 | case ' ': case '\t': case '\f': case 013: |
378cc40b LW |
1744 | s++; |
1745 | goto retry; | |
378cc40b | 1746 | case '#': |
e929a76b | 1747 | case '\n': |
79072805 | 1748 | if (lex_state != LEX_NORMAL || (in_eval && !rsfp)) { |
a687059c LW |
1749 | d = bufend; |
1750 | while (s < d && *s != '\n') | |
378cc40b | 1751 | s++; |
0f85fab0 | 1752 | if (s < d) |
378cc40b | 1753 | s++; |
463ee0b2 | 1754 | incline(s); |
85e6fe83 | 1755 | if (lex_formbrack && lex_brackets <= lex_formbrack) { |
a0d0e21e LW |
1756 | bufptr = s; |
1757 | lex_state = LEX_FORMLINE; | |
1758 | return yylex(); | |
a687059c | 1759 | } |
378cc40b | 1760 | } |
a687059c | 1761 | else { |
378cc40b | 1762 | *s = '\0'; |
a687059c LW |
1763 | bufend = s; |
1764 | } | |
378cc40b LW |
1765 | goto retry; |
1766 | case '-': | |
79072805 | 1767 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
378cc40b | 1768 | s++; |
748a9306 LW |
1769 | bufptr = s; |
1770 | tmp = *s++; | |
1771 | ||
1772 | while (s < bufend && (*s == ' ' || *s == '\t')) | |
1773 | s++; | |
1774 | ||
1775 | if (strnEQ(s,"=>",2)) { | |
1776 | if (dowarn) | |
1777 | warn("Ambiguous use of -%c => resolved to \"-%c\" =>", | |
ff0cee69 | 1778 | (int)tmp, (int)tmp); |
748a9306 LW |
1779 | s = force_word(bufptr,WORD,FALSE,FALSE,FALSE); |
1780 | OPERATOR('-'); /* unary minus */ | |
1781 | } | |
e334a159 | 1782 | last_uni = oldbufptr; |
a0d0e21e | 1783 | last_lop_op = OP_FTEREAD; /* good enough */ |
748a9306 | 1784 | switch (tmp) { |
79072805 LW |
1785 | case 'r': FTST(OP_FTEREAD); |
1786 | case 'w': FTST(OP_FTEWRITE); | |
1787 | case 'x': FTST(OP_FTEEXEC); | |
1788 | case 'o': FTST(OP_FTEOWNED); | |
1789 | case 'R': FTST(OP_FTRREAD); | |
1790 | case 'W': FTST(OP_FTRWRITE); | |
1791 | case 'X': FTST(OP_FTREXEC); | |
1792 | case 'O': FTST(OP_FTROWNED); | |
1793 | case 'e': FTST(OP_FTIS); | |
1794 | case 'z': FTST(OP_FTZERO); | |
1795 | case 's': FTST(OP_FTSIZE); | |
1796 | case 'f': FTST(OP_FTFILE); | |
1797 | case 'd': FTST(OP_FTDIR); | |
1798 | case 'l': FTST(OP_FTLINK); | |
1799 | case 'p': FTST(OP_FTPIPE); | |
1800 | case 'S': FTST(OP_FTSOCK); | |
1801 | case 'u': FTST(OP_FTSUID); | |
1802 | case 'g': FTST(OP_FTSGID); | |
1803 | case 'k': FTST(OP_FTSVTX); | |
1804 | case 'b': FTST(OP_FTBLK); | |
1805 | case 'c': FTST(OP_FTCHR); | |
1806 | case 't': FTST(OP_FTTTY); | |
1807 | case 'T': FTST(OP_FTTEXT); | |
1808 | case 'B': FTST(OP_FTBINARY); | |
85e6fe83 LW |
1809 | case 'M': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTMTIME); |
1810 | case 'A': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTATIME); | |
1811 | case 'C': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTCTIME); | |
378cc40b | 1812 | default: |
ff0cee69 | 1813 | croak("Unrecognized file test: -%c", (int)tmp); |
378cc40b LW |
1814 | break; |
1815 | } | |
1816 | } | |
a687059c LW |
1817 | tmp = *s++; |
1818 | if (*s == tmp) { | |
1819 | s++; | |
79072805 LW |
1820 | if (expect == XOPERATOR) |
1821 | TERM(POSTDEC); | |
1822 | else | |
1823 | OPERATOR(PREDEC); | |
1824 | } | |
1825 | else if (*s == '>') { | |
1826 | s++; | |
1827 | s = skipspace(s); | |
1828 | if (isIDFIRST(*s)) { | |
a0d0e21e | 1829 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); |
463ee0b2 | 1830 | TOKEN(ARROW); |
79072805 | 1831 | } |
748a9306 LW |
1832 | else if (*s == '$') |
1833 | OPERATOR(ARROW); | |
463ee0b2 | 1834 | else |
748a9306 | 1835 | TERM(ARROW); |
a687059c | 1836 | } |
79072805 LW |
1837 | if (expect == XOPERATOR) |
1838 | Aop(OP_SUBTRACT); | |
1839 | else { | |
2f3197b3 LW |
1840 | if (isSPACE(*s) || !isSPACE(*bufptr)) |
1841 | check_uni(); | |
79072805 | 1842 | OPERATOR('-'); /* unary minus */ |
2f3197b3 | 1843 | } |
79072805 | 1844 | |
378cc40b | 1845 | case '+': |
a687059c LW |
1846 | tmp = *s++; |
1847 | if (*s == tmp) { | |
378cc40b | 1848 | s++; |
79072805 LW |
1849 | if (expect == XOPERATOR) |
1850 | TERM(POSTINC); | |
1851 | else | |
1852 | OPERATOR(PREINC); | |
378cc40b | 1853 | } |
79072805 LW |
1854 | if (expect == XOPERATOR) |
1855 | Aop(OP_ADD); | |
1856 | else { | |
2f3197b3 LW |
1857 | if (isSPACE(*s) || !isSPACE(*bufptr)) |
1858 | check_uni(); | |
a687059c | 1859 | OPERATOR('+'); |
2f3197b3 | 1860 | } |
a687059c | 1861 | |
378cc40b | 1862 | case '*': |
79072805 | 1863 | if (expect != XOPERATOR) { |
8903cb82 | 1864 | s = scan_ident(s, bufend, tokenbuf, sizeof tokenbuf, TRUE); |
463ee0b2 | 1865 | expect = XOPERATOR; |
a0d0e21e LW |
1866 | force_ident(tokenbuf, '*'); |
1867 | if (!*tokenbuf) | |
1868 | PREREF('*'); | |
79072805 | 1869 | TERM('*'); |
a687059c | 1870 | } |
79072805 LW |
1871 | s++; |
1872 | if (*s == '*') { | |
a687059c | 1873 | s++; |
79072805 | 1874 | PWop(OP_POW); |
a687059c | 1875 | } |
79072805 LW |
1876 | Mop(OP_MULTIPLY); |
1877 | ||
378cc40b | 1878 | case '%': |
bbce6d69 | 1879 | if (expect == XOPERATOR) { |
1880 | ++s; | |
1881 | Mop(OP_MODULO); | |
a687059c | 1882 | } |
bbce6d69 | 1883 | tokenbuf[0] = '%'; |
8903cb82 | 1884 | s = scan_ident(s, bufend, tokenbuf + 1, sizeof tokenbuf - 1, TRUE); |
bbce6d69 | 1885 | if (!tokenbuf[1]) { |
1886 | if (s == bufend) | |
1887 | yyerror("Final % should be \\% or %name"); | |
1888 | PREREF('%'); | |
a687059c | 1889 | } |
bbce6d69 | 1890 | pending_ident = '%'; |
1891 | TERM('%'); | |
a687059c | 1892 | |
378cc40b | 1893 | case '^': |
79072805 | 1894 | s++; |
a0d0e21e | 1895 | BOop(OP_BIT_XOR); |
79072805 LW |
1896 | case '[': |
1897 | lex_brackets++; | |
1898 | /* FALL THROUGH */ | |
378cc40b | 1899 | case '~': |
378cc40b | 1900 | case ',': |
378cc40b LW |
1901 | tmp = *s++; |
1902 | OPERATOR(tmp); | |
a0d0e21e LW |
1903 | case ':': |
1904 | if (s[1] == ':') { | |
1905 | len = 0; | |
1906 | goto just_a_word; | |
1907 | } | |
1908 | s++; | |
1909 | OPERATOR(':'); | |
8990e307 LW |
1910 | case '(': |
1911 | s++; | |
a0d0e21e | 1912 | if (last_lop == oldoldbufptr || last_uni == oldoldbufptr) |
8990e307 | 1913 | oldbufptr = oldoldbufptr; /* allow print(STDOUT 123) */ |
a0d0e21e LW |
1914 | else |
1915 | expect = XTERM; | |
1916 | TOKEN('('); | |
378cc40b | 1917 | case ';': |
79072805 LW |
1918 | if (curcop->cop_line < copline) |
1919 | copline = curcop->cop_line; | |
378cc40b LW |
1920 | tmp = *s++; |
1921 | OPERATOR(tmp); | |
1922 | case ')': | |
378cc40b | 1923 | tmp = *s++; |
16d20bd9 AD |
1924 | s = skipspace(s); |
1925 | if (*s == '{') | |
1926 | PREBLOCK(tmp); | |
378cc40b | 1927 | TERM(tmp); |
79072805 LW |
1928 | case ']': |
1929 | s++; | |
463ee0b2 LW |
1930 | if (lex_brackets <= 0) |
1931 | yyerror("Unmatched right bracket"); | |
1932 | else | |
1933 | --lex_brackets; | |
79072805 | 1934 | if (lex_state == LEX_INTERPNORMAL) { |
463ee0b2 | 1935 | if (lex_brackets == 0) { |
a0d0e21e | 1936 | if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>')) |
79072805 LW |
1937 | lex_state = LEX_INTERPEND; |
1938 | } | |
1939 | } | |
4633a7c4 | 1940 | TERM(']'); |
79072805 LW |
1941 | case '{': |
1942 | leftbracket: | |
79072805 | 1943 | s++; |
8990e307 | 1944 | if (lex_brackets > 100) { |
89bfa8cd | 1945 | char* newlb = Renew(lex_brackstack, lex_brackets + 1, char); |
8990e307 LW |
1946 | if (newlb != lex_brackstack) { |
1947 | SAVEFREEPV(newlb); | |
1948 | lex_brackstack = newlb; | |
1949 | } | |
1950 | } | |
a0d0e21e LW |
1951 | switch (expect) { |
1952 | case XTERM: | |
1953 | if (lex_formbrack) { | |
1954 | s--; | |
1955 | PRETERMBLOCK(DO); | |
1956 | } | |
1957 | if (oldoldbufptr == last_lop) | |
1958 | lex_brackstack[lex_brackets++] = XTERM; | |
1959 | else | |
1960 | lex_brackstack[lex_brackets++] = XOPERATOR; | |
79072805 | 1961 | OPERATOR(HASHBRACK); |
a0d0e21e | 1962 | case XOPERATOR: |
748a9306 LW |
1963 | while (s < bufend && (*s == ' ' || *s == '\t')) |
1964 | s++; | |
44a8e56a | 1965 | d = s; |
1966 | tokenbuf[0] = '\0'; | |
1967 | if (d < bufend && *d == '-') { | |
1968 | tokenbuf[0] = '-'; | |
1969 | d++; | |
1970 | while (d < bufend && (*d == ' ' || *d == '\t')) | |
1971 | d++; | |
1972 | } | |
1973 | if (d < bufend && isIDFIRST(*d)) { | |
8903cb82 | 1974 | d = scan_word(d, tokenbuf + 1, sizeof tokenbuf - 1, |
1975 | FALSE, &len); | |
748a9306 LW |
1976 | while (d < bufend && (*d == ' ' || *d == '\t')) |
1977 | d++; | |
1978 | if (*d == '}') { | |
44a8e56a | 1979 | char minus = (tokenbuf[0] == '-'); |
748a9306 | 1980 | if (dowarn && |
44a8e56a | 1981 | (keyword(tokenbuf + 1, len) || |
1982 | (minus && len == 1 && isALPHA(tokenbuf[1])) || | |
1983 | perl_get_cv(tokenbuf + 1, FALSE) )) | |
748a9306 | 1984 | warn("Ambiguous use of {%s} resolved to {\"%s\"}", |
44a8e56a | 1985 | tokenbuf + !minus, tokenbuf + !minus); |
1986 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); | |
1987 | if (minus) | |
1988 | force_next('-'); | |
748a9306 LW |
1989 | } |
1990 | } | |
1991 | /* FALL THROUGH */ | |
1992 | case XBLOCK: | |
a0d0e21e | 1993 | lex_brackstack[lex_brackets++] = XSTATE; |
2304df62 | 1994 | expect = XSTATE; |
a0d0e21e LW |
1995 | break; |
1996 | case XTERMBLOCK: | |
1997 | lex_brackstack[lex_brackets++] = XOPERATOR; | |
1998 | expect = XSTATE; | |
1999 | break; | |
2000 | default: { | |
2001 | char *t; | |
2002 | if (oldoldbufptr == last_lop) | |
2003 | lex_brackstack[lex_brackets++] = XTERM; | |
2004 | else | |
2005 | lex_brackstack[lex_brackets++] = XOPERATOR; | |
2006 | s = skipspace(s); | |
2007 | if (*s == '}') | |
2008 | OPERATOR(HASHBRACK); | |
b8a4b1be GS |
2009 | /* This hack serves to disambiguate a pair of curlies |
2010 | * as being a block or an anon hash. Normally, expectation | |
2011 | * determines that, but in cases where we're not in a | |
2012 | * position to expect anything in particular (like inside | |
2013 | * eval"") we have to resolve the ambiguity. This code | |
2014 | * covers the case where the first term in the curlies is a | |
2015 | * quoted string. Most other cases need to be explicitly | |
2016 | * disambiguated by prepending a `+' before the opening | |
2017 | * curly in order to force resolution as an anon hash. | |
2018 | * | |
2019 | * XXX should probably propagate the outer expectation | |
2020 | * into eval"" to rely less on this hack, but that could | |
2021 | * potentially break current behavior of eval"". | |
2022 | * GSAR 97-07-21 | |
2023 | */ | |
2024 | t = s; | |
2025 | if (*s == '\'' || *s == '"' || *s == '`') { | |
2026 | /* common case: get past first string, handling escapes */ | |
2027 | for (t++; t < bufend && *t != *s;) | |
2028 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) | |
2029 | t++; | |
2030 | t++; | |
a0d0e21e | 2031 | } |
b8a4b1be GS |
2032 | else if (*s == 'q') { |
2033 | if (++t < bufend | |
2034 | && (!isALNUM(*t) | |
2035 | || ((*t == 'q' || *t == 'x') && ++t < bufend | |
2036 | && !isALNUM(*t)))) { | |
2037 | char *tmps; | |
2038 | char open, close, term; | |
2039 | I32 brackets = 1; | |
2040 | ||
2041 | while (t < bufend && isSPACE(*t)) | |
2042 | t++; | |
2043 | term = *t; | |
2044 | open = term; | |
2045 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
2046 | term = tmps[5]; | |
2047 | close = term; | |
2048 | if (open == close) | |
2049 | for (t++; t < bufend; t++) { | |
6d07e5e9 | 2050 | if (*t == '\\' && t+1 < bufend && open != '\\') |
b8a4b1be | 2051 | t++; |
6d07e5e9 | 2052 | else if (*t == open) |
b8a4b1be GS |
2053 | break; |
2054 | } | |
2055 | else | |
2056 | for (t++; t < bufend; t++) { | |
6d07e5e9 | 2057 | if (*t == '\\' && t+1 < bufend) |
b8a4b1be | 2058 | t++; |
6d07e5e9 | 2059 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
2060 | break; |
2061 | else if (*t == open) | |
2062 | brackets++; | |
2063 | } | |
2064 | } | |
2065 | t++; | |
a0d0e21e | 2066 | } |
b8a4b1be GS |
2067 | else if (isALPHA(*s)) { |
2068 | for (t++; t < bufend && isALNUM(*t); t++) ; | |
a0d0e21e | 2069 | } |
a0d0e21e LW |
2070 | while (t < bufend && isSPACE(*t)) |
2071 | t++; | |
b8a4b1be GS |
2072 | /* if comma follows first term, call it an anon hash */ |
2073 | /* XXX it could be a comma expression with loop modifiers */ | |
2074 | if (t < bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) | |
2075 | || (*t == '=' && t[1] == '>'))) | |
a0d0e21e LW |
2076 | OPERATOR(HASHBRACK); |
2077 | if (expect == XREF) | |
2078 | expect = XTERM; | |
2079 | else { | |
2080 | lex_brackstack[lex_brackets-1] = XSTATE; | |
2081 | expect = XSTATE; | |
2082 | } | |
8990e307 | 2083 | } |
a0d0e21e | 2084 | break; |
463ee0b2 | 2085 | } |
79072805 LW |
2086 | yylval.ival = curcop->cop_line; |
2087 | if (isSPACE(*s) || *s == '#') | |
2088 | copline = NOLINE; /* invalidate current command line number */ | |
79072805 | 2089 | TOKEN('{'); |
378cc40b | 2090 | case '}': |
79072805 LW |
2091 | rightbracket: |
2092 | s++; | |
463ee0b2 LW |
2093 | if (lex_brackets <= 0) |
2094 | yyerror("Unmatched right bracket"); | |
2095 | else | |
2096 | expect = (expectation)lex_brackstack[--lex_brackets]; | |
85e6fe83 LW |
2097 | if (lex_brackets < lex_formbrack) |
2098 | lex_formbrack = 0; | |
79072805 | 2099 | if (lex_state == LEX_INTERPNORMAL) { |
463ee0b2 | 2100 | if (lex_brackets == 0) { |
79072805 LW |
2101 | if (lex_fakebrack) { |
2102 | lex_state = LEX_INTERPEND; | |
2103 | bufptr = s; | |
2104 | return yylex(); /* ignore fake brackets */ | |
2105 | } | |
fa83b5b6 | 2106 | if (*s == '-' && s[1] == '>') |
2107 | lex_state = LEX_INTERPENDMAYBE; | |
2108 | else if (*s != '[' && *s != '{') | |
79072805 LW |
2109 | lex_state = LEX_INTERPEND; |
2110 | } | |
2111 | } | |
748a9306 LW |
2112 | if (lex_brackets < lex_fakebrack) { |
2113 | bufptr = s; | |
2114 | lex_fakebrack = 0; | |
2115 | return yylex(); /* ignore fake brackets */ | |
2116 | } | |
79072805 LW |
2117 | force_next('}'); |
2118 | TOKEN(';'); | |
378cc40b LW |
2119 | case '&': |
2120 | s++; | |
2121 | tmp = *s++; | |
2122 | if (tmp == '&') | |
a0d0e21e | 2123 | AOPERATOR(ANDAND); |
378cc40b | 2124 | s--; |
463ee0b2 | 2125 | if (expect == XOPERATOR) { |
fd049845 | 2126 | if (dowarn && isALPHA(*s) && bufptr == linestart) { |
463ee0b2 LW |
2127 | curcop->cop_line--; |
2128 | warn(warn_nosemi); | |
2129 | curcop->cop_line++; | |
2130 | } | |
79072805 | 2131 | BAop(OP_BIT_AND); |
463ee0b2 | 2132 | } |
79072805 | 2133 | |
8903cb82 | 2134 | s = scan_ident(s - 1, bufend, tokenbuf, sizeof tokenbuf, TRUE); |
463ee0b2 LW |
2135 | if (*tokenbuf) { |
2136 | expect = XOPERATOR; | |
a0d0e21e | 2137 | force_ident(tokenbuf, '&'); |
463ee0b2 | 2138 | } |
79072805 LW |
2139 | else |
2140 | PREREF('&'); | |
c07a80fd | 2141 | yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
2142 | TERM('&'); |
2143 | ||
378cc40b LW |
2144 | case '|': |
2145 | s++; | |
2146 | tmp = *s++; | |
2147 | if (tmp == '|') | |
a0d0e21e | 2148 | AOPERATOR(OROR); |
378cc40b | 2149 | s--; |
79072805 | 2150 | BOop(OP_BIT_OR); |
378cc40b LW |
2151 | case '=': |
2152 | s++; | |
2153 | tmp = *s++; | |
2154 | if (tmp == '=') | |
79072805 LW |
2155 | Eop(OP_EQ); |
2156 | if (tmp == '>') | |
2157 | OPERATOR(','); | |
378cc40b | 2158 | if (tmp == '~') |
79072805 | 2159 | PMop(OP_MATCH); |
463ee0b2 | 2160 | if (dowarn && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp)) |
ff0cee69 | 2161 | warn("Reversed %c= operator",(int)tmp); |
378cc40b | 2162 | s--; |
748a9306 | 2163 | if (expect == XSTATE && isALPHA(tmp) && |
fd049845 | 2164 | (s == linestart+1 || s[-2] == '\n') ) |
748a9306 | 2165 | { |
a5f75d66 AD |
2166 | if (in_eval && !rsfp) { |
2167 | d = bufend; | |
2168 | while (s < d) { | |
2169 | if (*s++ == '\n') { | |
2170 | incline(s); | |
2171 | if (strnEQ(s,"=cut",4)) { | |
2172 | s = strchr(s,'\n'); | |
2173 | if (s) | |
2174 | s++; | |
2175 | else | |
2176 | s = d; | |
2177 | incline(s); | |
2178 | goto retry; | |
2179 | } | |
2180 | } | |
2181 | } | |
2182 | goto retry; | |
2183 | } | |
a0d0e21e LW |
2184 | s = bufend; |
2185 | doextract = TRUE; | |
2186 | goto retry; | |
2187 | } | |
2188 | if (lex_brackets < lex_formbrack) { | |
2189 | char *t; | |
2190 | for (t = s; *t == ' ' || *t == '\t'; t++) ; | |
2191 | if (*t == '\n' || *t == '#') { | |
2192 | s--; | |
2193 | expect = XBLOCK; | |
2194 | goto leftbracket; | |
2195 | } | |
79072805 | 2196 | } |
a0d0e21e LW |
2197 | yylval.ival = 0; |
2198 | OPERATOR(ASSIGNOP); | |
378cc40b LW |
2199 | case '!': |
2200 | s++; | |
2201 | tmp = *s++; | |
2202 | if (tmp == '=') | |
79072805 | 2203 | Eop(OP_NE); |
378cc40b | 2204 | if (tmp == '~') |
79072805 | 2205 | PMop(OP_NOT); |
378cc40b LW |
2206 | s--; |
2207 | OPERATOR('!'); | |
2208 | case '<': | |
79072805 | 2209 | if (expect != XOPERATOR) { |
93a17b20 | 2210 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 2211 | check_uni(); |
79072805 LW |
2212 | if (s[1] == '<') |
2213 | s = scan_heredoc(s); | |
2214 | else | |
2215 | s = scan_inputsymbol(s); | |
2216 | TERM(sublex_start()); | |
378cc40b LW |
2217 | } |
2218 | s++; | |
2219 | tmp = *s++; | |
2220 | if (tmp == '<') | |
79072805 | 2221 | SHop(OP_LEFT_SHIFT); |
395c3793 LW |
2222 | if (tmp == '=') { |
2223 | tmp = *s++; | |
2224 | if (tmp == '>') | |
79072805 | 2225 | Eop(OP_NCMP); |
395c3793 | 2226 | s--; |
79072805 | 2227 | Rop(OP_LE); |
395c3793 | 2228 | } |
378cc40b | 2229 | s--; |
79072805 | 2230 | Rop(OP_LT); |
378cc40b LW |
2231 | case '>': |
2232 | s++; | |
2233 | tmp = *s++; | |
2234 | if (tmp == '>') | |
79072805 | 2235 | SHop(OP_RIGHT_SHIFT); |
378cc40b | 2236 | if (tmp == '=') |
79072805 | 2237 | Rop(OP_GE); |
378cc40b | 2238 | s--; |
79072805 | 2239 | Rop(OP_GT); |
378cc40b LW |
2240 | |
2241 | case '$': | |
bbce6d69 | 2242 | CLINE; |
2243 | ||
8990e307 | 2244 | if (expect == XOPERATOR) { |
a0d0e21e LW |
2245 | if (lex_formbrack && lex_brackets == lex_formbrack) { |
2246 | expect = XTERM; | |
2247 | depcom(); | |
bbce6d69 | 2248 | return ','; /* grandfather non-comma-format format */ |
a0d0e21e | 2249 | } |
8990e307 | 2250 | } |
a0d0e21e | 2251 | |
bbce6d69 | 2252 | if (s[1] == '#' && (isALPHA(s[2]) || strchr("_{$:", s[2]))) { |
2253 | if (expect == XOPERATOR) | |
2254 | no_op("Array length", bufptr); | |
2255 | tokenbuf[0] = '@'; | |
8903cb82 | 2256 | s = scan_ident(s + 1, bufend, tokenbuf + 1, sizeof tokenbuf - 1, |
2257 | FALSE); | |
bbce6d69 | 2258 | if (!tokenbuf[1]) |
a0d0e21e | 2259 | PREREF(DOLSHARP); |
463ee0b2 | 2260 | expect = XOPERATOR; |
bbce6d69 | 2261 | pending_ident = '#'; |
463ee0b2 | 2262 | TOKEN(DOLSHARP); |
79072805 | 2263 | } |
bbce6d69 | 2264 | |
2265 | if (expect == XOPERATOR) | |
2266 | no_op("Scalar", bufptr); | |
2267 | tokenbuf[0] = '$'; | |
8903cb82 | 2268 | s = scan_ident(s, bufend, tokenbuf + 1, sizeof tokenbuf - 1, FALSE); |
bbce6d69 | 2269 | if (!tokenbuf[1]) { |
2270 | if (s == bufend) | |
2271 | yyerror("Final $ should be \\$ or $name"); | |
2272 | PREREF('$'); | |
8990e307 | 2273 | } |
a0d0e21e | 2274 | |
bbce6d69 | 2275 | /* This kludge not intended to be bulletproof. */ |
2276 | if (tokenbuf[1] == '[' && !tokenbuf[2]) { | |
2277 | yylval.opval = newSVOP(OP_CONST, 0, | |
2278 | newSViv((IV)compiling.cop_arybase)); | |
2279 | yylval.opval->op_private = OPpCONST_ARYBASE; | |
2280 | TERM(THING); | |
2281 | } | |
2282 | ||
ff68c719 | 2283 | d = s; |
2284 | if (lex_state == LEX_NORMAL) | |
2285 | s = skipspace(s); | |
2286 | ||
bbce6d69 | 2287 | if ((expect != XREF || oldoldbufptr == last_lop) && intuit_more(s)) { |
2288 | char *t; | |
2289 | if (*s == '[') { | |
2290 | tokenbuf[0] = '@'; | |
2291 | if (dowarn) { | |
2292 | for(t = s + 1; | |
2293 | isSPACE(*t) || isALNUM(*t) || *t == '$'; | |
2294 | t++) ; | |
a0d0e21e LW |
2295 | if (*t++ == ',') { |
2296 | bufptr = skipspace(bufptr); | |
bbce6d69 | 2297 | while (t < bufend && *t != ']') |
2298 | t++; | |
a0d0e21e | 2299 | warn("Multidimensional syntax %.*s not supported", |
bbce6d69 | 2300 | (t - bufptr) + 1, bufptr); |
a0d0e21e LW |
2301 | } |
2302 | } | |
bbce6d69 | 2303 | } |
2304 | else if (*s == '{') { | |
2305 | tokenbuf[0] = '%'; | |
2306 | if (dowarn && strEQ(tokenbuf+1, "SIG") && | |
2307 | (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
2308 | { | |
8903cb82 | 2309 | char tmpbuf[sizeof tokenbuf]; |
a0d0e21e LW |
2310 | STRLEN len; |
2311 | for (t++; isSPACE(*t); t++) ; | |
748a9306 | 2312 | if (isIDFIRST(*t)) { |
8903cb82 | 2313 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, &len); |
748a9306 LW |
2314 | if (*t != '(' && perl_get_cv(tmpbuf, FALSE)) |
2315 | warn("You need to quote \"%s\"", tmpbuf); | |
2316 | } | |
93a17b20 LW |
2317 | } |
2318 | } | |
2f3197b3 | 2319 | } |
bbce6d69 | 2320 | |
2321 | expect = XOPERATOR; | |
ff68c719 | 2322 | if (lex_state == LEX_NORMAL && isSPACE(*d)) { |
bbce6d69 | 2323 | bool islop = (last_lop == oldoldbufptr); |
bbce6d69 | 2324 | if (!islop || last_lop_op == OP_GREPSTART) |
2325 | expect = XOPERATOR; | |
2326 | else if (strchr("$@\"'`q", *s)) | |
2327 | expect = XTERM; /* e.g. print $fh "foo" */ | |
2328 | else if (strchr("&*<%", *s) && isIDFIRST(s[1])) | |
2329 | expect = XTERM; /* e.g. print $fh &sub */ | |
68dc0745 | 2330 | else if (isIDFIRST(*s)) { |
8903cb82 | 2331 | char tmpbuf[sizeof tokenbuf]; |
2332 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
84902520 TB |
2333 | if (tmp = keyword(tmpbuf, len)) { |
2334 | /* binary operators exclude handle interpretations */ | |
2335 | switch (tmp) { | |
2336 | case -KEY_x: | |
2337 | case -KEY_eq: | |
2338 | case -KEY_ne: | |
2339 | case -KEY_gt: | |
2340 | case -KEY_lt: | |
2341 | case -KEY_ge: | |
2342 | case -KEY_le: | |
2343 | case -KEY_cmp: | |
2344 | break; | |
2345 | default: | |
2346 | expect = XTERM; /* e.g. print $fh length() */ | |
2347 | break; | |
2348 | } | |
2349 | } | |
68dc0745 | 2350 | else { |
2351 | GV *gv = gv_fetchpv(tmpbuf, FALSE, SVt_PVCV); | |
2352 | if (gv && GvCVu(gv)) | |
2353 | expect = XTERM; /* e.g. print $fh subr() */ | |
93a17b20 | 2354 | } |
93a17b20 | 2355 | } |
bbce6d69 | 2356 | else if (isDIGIT(*s)) |
2357 | expect = XTERM; /* e.g. print $fh 3 */ | |
2358 | else if (*s == '.' && isDIGIT(s[1])) | |
2359 | expect = XTERM; /* e.g. print $fh .3 */ | |
2360 | else if (strchr("/?-+", *s) && !isSPACE(s[1])) | |
2361 | expect = XTERM; /* e.g. print $fh -1 */ | |
2362 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2])) | |
2363 | expect = XTERM; /* print $fh <<"EOF" */ | |
2364 | } | |
2365 | pending_ident = '$'; | |
79072805 | 2366 | TOKEN('$'); |
378cc40b LW |
2367 | |
2368 | case '@': | |
8990e307 | 2369 | if (expect == XOPERATOR) |
bbce6d69 | 2370 | no_op("Array", s); |
2371 | tokenbuf[0] = '@'; | |
8903cb82 | 2372 | s = scan_ident(s, bufend, tokenbuf + 1, sizeof tokenbuf - 1, FALSE); |
bbce6d69 | 2373 | if (!tokenbuf[1]) { |
2374 | if (s == bufend) | |
2375 | yyerror("Final @ should be \\@ or @name"); | |
2376 | PREREF('@'); | |
2377 | } | |
ff68c719 | 2378 | if (lex_state == LEX_NORMAL) |
2379 | s = skipspace(s); | |
bbce6d69 | 2380 | if ((expect != XREF || oldoldbufptr == last_lop) && intuit_more(s)) { |
2381 | if (*s == '{') | |
2382 | tokenbuf[0] = '%'; | |
a0d0e21e LW |
2383 | |
2384 | /* Warn about @ where they meant $. */ | |
2385 | if (dowarn) { | |
2386 | if (*s == '[' || *s == '{') { | |
2387 | char *t = s + 1; | |
2388 | while (*t && (isALNUM(*t) || strchr(" \t$#+-'\"", *t))) | |
2389 | t++; | |
2390 | if (*t == '}' || *t == ']') { | |
2391 | t++; | |
2392 | bufptr = skipspace(bufptr); | |
2393 | warn("Scalar value %.*s better written as $%.*s", | |
2394 | t-bufptr, bufptr, t-bufptr-1, bufptr+1); | |
2395 | } | |
93a17b20 LW |
2396 | } |
2397 | } | |
463ee0b2 | 2398 | } |
bbce6d69 | 2399 | pending_ident = '@'; |
79072805 | 2400 | TERM('@'); |
378cc40b LW |
2401 | |
2402 | case '/': /* may either be division or pattern */ | |
2403 | case '?': /* may either be conditional or pattern */ | |
79072805 | 2404 | if (expect != XOPERATOR) { |
2f3197b3 | 2405 | check_uni(); |
79072805 LW |
2406 | s = scan_pat(s); |
2407 | TERM(sublex_start()); | |
378cc40b LW |
2408 | } |
2409 | tmp = *s++; | |
a687059c | 2410 | if (tmp == '/') |
79072805 | 2411 | Mop(OP_DIVIDE); |
378cc40b LW |
2412 | OPERATOR(tmp); |
2413 | ||
2414 | case '.': | |
748a9306 | 2415 | if (lex_formbrack && lex_brackets == lex_formbrack && s[1] == '\n' && |
fd049845 | 2416 | (s == linestart || s[-1] == '\n') ) { |
85e6fe83 | 2417 | lex_formbrack = 0; |
8990e307 | 2418 | expect = XSTATE; |
79072805 LW |
2419 | goto rightbracket; |
2420 | } | |
2421 | if (expect == XOPERATOR || !isDIGIT(s[1])) { | |
378cc40b | 2422 | tmp = *s++; |
a687059c LW |
2423 | if (*s == tmp) { |
2424 | s++; | |
2f3197b3 LW |
2425 | if (*s == tmp) { |
2426 | s++; | |
79072805 | 2427 | yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
2428 | } |
2429 | else | |
79072805 | 2430 | yylval.ival = 0; |
378cc40b | 2431 | OPERATOR(DOTDOT); |
a687059c | 2432 | } |
79072805 | 2433 | if (expect != XOPERATOR) |
2f3197b3 | 2434 | check_uni(); |
79072805 | 2435 | Aop(OP_CONCAT); |
378cc40b LW |
2436 | } |
2437 | /* FALL THROUGH */ | |
2438 | case '0': case '1': case '2': case '3': case '4': | |
2439 | case '5': case '6': case '7': case '8': case '9': | |
79072805 | 2440 | s = scan_num(s); |
8990e307 LW |
2441 | if (expect == XOPERATOR) |
2442 | no_op("Number",s); | |
79072805 LW |
2443 | TERM(THING); |
2444 | ||
2445 | case '\'': | |
8990e307 | 2446 | s = scan_str(s); |
463ee0b2 | 2447 | if (expect == XOPERATOR) { |
a0d0e21e LW |
2448 | if (lex_formbrack && lex_brackets == lex_formbrack) { |
2449 | expect = XTERM; | |
2450 | depcom(); | |
2451 | return ','; /* grandfather non-comma-format format */ | |
2452 | } | |
463ee0b2 | 2453 | else |
8990e307 | 2454 | no_op("String",s); |
463ee0b2 | 2455 | } |
79072805 | 2456 | if (!s) |
85e6fe83 | 2457 | missingterm((char*)0); |
79072805 LW |
2458 | yylval.ival = OP_CONST; |
2459 | TERM(sublex_start()); | |
2460 | ||
2461 | case '"': | |
8990e307 | 2462 | s = scan_str(s); |
463ee0b2 | 2463 | if (expect == XOPERATOR) { |
a0d0e21e LW |
2464 | if (lex_formbrack && lex_brackets == lex_formbrack) { |
2465 | expect = XTERM; | |
2466 | depcom(); | |
2467 | return ','; /* grandfather non-comma-format format */ | |
2468 | } | |
463ee0b2 | 2469 | else |
8990e307 | 2470 | no_op("String",s); |
463ee0b2 | 2471 | } |
79072805 | 2472 | if (!s) |
85e6fe83 | 2473 | missingterm((char*)0); |
4633a7c4 LW |
2474 | yylval.ival = OP_CONST; |
2475 | for (d = SvPV(lex_stuff, len); len; len--, d++) { | |
2476 | if (*d == '$' || *d == '@' || *d == '\\') { | |
2477 | yylval.ival = OP_STRINGIFY; | |
2478 | break; | |
2479 | } | |
2480 | } | |
79072805 LW |
2481 | TERM(sublex_start()); |
2482 | ||
2483 | case '`': | |
2484 | s = scan_str(s); | |
8990e307 LW |
2485 | if (expect == XOPERATOR) |
2486 | no_op("Backticks",s); | |
79072805 | 2487 | if (!s) |
85e6fe83 | 2488 | missingterm((char*)0); |
79072805 LW |
2489 | yylval.ival = OP_BACKTICK; |
2490 | set_csh(); | |
2491 | TERM(sublex_start()); | |
2492 | ||
2493 | case '\\': | |
2494 | s++; | |
748a9306 LW |
2495 | if (dowarn && lex_inwhat && isDIGIT(*s)) |
2496 | warn("Can't use \\%c to mean $%c in expression", *s, *s); | |
8990e307 LW |
2497 | if (expect == XOPERATOR) |
2498 | no_op("Backslash",s); | |
79072805 LW |
2499 | OPERATOR(REFGEN); |
2500 | ||
2501 | case 'x': | |
2502 | if (isDIGIT(s[1]) && expect == XOPERATOR) { | |
2503 | s++; | |
2504 | Mop(OP_REPEAT); | |
2f3197b3 | 2505 | } |
79072805 LW |
2506 | goto keylookup; |
2507 | ||
378cc40b | 2508 | case '_': |
79072805 LW |
2509 | case 'a': case 'A': |
2510 | case 'b': case 'B': | |
2511 | case 'c': case 'C': | |
2512 | case 'd': case 'D': | |
2513 | case 'e': case 'E': | |
2514 | case 'f': case 'F': | |
2515 | case 'g': case 'G': | |
2516 | case 'h': case 'H': | |
2517 | case 'i': case 'I': | |
2518 | case 'j': case 'J': | |
2519 | case 'k': case 'K': | |
2520 | case 'l': case 'L': | |
2521 | case 'm': case 'M': | |
2522 | case 'n': case 'N': | |
2523 | case 'o': case 'O': | |
2524 | case 'p': case 'P': | |
2525 | case 'q': case 'Q': | |
2526 | case 'r': case 'R': | |
2527 | case 's': case 'S': | |
2528 | case 't': case 'T': | |
2529 | case 'u': case 'U': | |
2530 | case 'v': case 'V': | |
2531 | case 'w': case 'W': | |
2532 | case 'X': | |
2533 | case 'y': case 'Y': | |
2534 | case 'z': case 'Z': | |
2535 | ||
2536 | keylookup: | |
748a9306 | 2537 | bufptr = s; |
8903cb82 | 2538 | s = scan_word(s, tokenbuf, sizeof tokenbuf, FALSE, &len); |
8ebc5c01 | 2539 | |
2540 | /* Some keywords can be followed by any delimiter, including ':' */ | |
2541 | tmp = (len == 1 && strchr("msyq", tokenbuf[0]) || | |
2542 | len == 2 && ((tokenbuf[0] == 't' && tokenbuf[1] == 'r') || | |
2543 | (tokenbuf[0] == 'q' && | |
2544 | strchr("qwx", tokenbuf[1])))); | |
2545 | ||
2546 | /* x::* is just a word, unless x is "CORE" */ | |
2547 | if (!tmp && *s == ':' && s[1] == ':' && strNE(tokenbuf, "CORE")) | |
4633a7c4 LW |
2548 | goto just_a_word; |
2549 | ||
3643fb5f CS |
2550 | d = s; |
2551 | while (d < bufend && isSPACE(*d)) | |
2552 | d++; /* no comments skipped here, or s### is misparsed */ | |
2553 | ||
2554 | /* Is this a label? */ | |
8ebc5c01 | 2555 | if (!tmp && expect == XSTATE |
2556 | && d < bufend && *d == ':' && *(d + 1) != ':') { | |
2557 | s = d + 1; | |
2558 | yylval.pval = savepv(tokenbuf); | |
2559 | CLINE; | |
2560 | TOKEN(LABEL); | |
3643fb5f CS |
2561 | } |
2562 | ||
2563 | /* Check for keywords */ | |
a0d0e21e | 2564 | tmp = keyword(tokenbuf, len); |
748a9306 LW |
2565 | |
2566 | /* Is this a word before a => operator? */ | |
748a9306 LW |
2567 | if (strnEQ(d,"=>",2)) { |
2568 | CLINE; | |
2569 | if (dowarn && (tmp || perl_get_cv(tokenbuf, FALSE))) | |
2570 | warn("Ambiguous use of %s => resolved to \"%s\" =>", | |
2571 | tokenbuf, tokenbuf); | |
2572 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); | |
2573 | yylval.opval->op_private = OPpCONST_BARE; | |
2574 | TERM(WORD); | |
2575 | } | |
2576 | ||
a0d0e21e LW |
2577 | if (tmp < 0) { /* second-class keyword? */ |
2578 | GV* gv; | |
2579 | if (expect != XOPERATOR && | |
a5f75d66 AD |
2580 | (*s != ':' || s[1] != ':') && |
2581 | (gv = gv_fetchpv(tokenbuf, FALSE, SVt_PVCV)) && | |
2582 | GvIMPORTED_CV(gv)) | |
a0d0e21e LW |
2583 | { |
2584 | tmp = 0; | |
2585 | } | |
2586 | else | |
2587 | tmp = -tmp; | |
2588 | } | |
2589 | ||
2590 | reserved_word: | |
2591 | switch (tmp) { | |
79072805 LW |
2592 | |
2593 | default: /* not a keyword */ | |
93a17b20 LW |
2594 | just_a_word: { |
2595 | GV *gv; | |
96e4d5b1 | 2596 | SV *sv; |
748a9306 | 2597 | char lastchar = (bufptr == oldoldbufptr ? 0 : bufptr[-1]); |
8990e307 LW |
2598 | |
2599 | /* Get the rest if it looks like a package qualifier */ | |
2600 | ||
a0d0e21e | 2601 | if (*s == '\'' || *s == ':' && s[1] == ':') { |
8903cb82 | 2602 | s = scan_word(s, tokenbuf + len, sizeof tokenbuf - len, |
2603 | TRUE, &len); | |
a0d0e21e LW |
2604 | if (!len) |
2605 | croak("Bad name after %s::", tokenbuf); | |
2606 | } | |
8990e307 | 2607 | |
3643fb5f | 2608 | if (expect == XOPERATOR) { |
fd049845 | 2609 | if (bufptr == linestart) { |
463ee0b2 LW |
2610 | curcop->cop_line--; |
2611 | warn(warn_nosemi); | |
2612 | curcop->cop_line++; | |
2613 | } | |
2614 | else | |
54310121 | 2615 | no_op("Bareword",s); |
463ee0b2 | 2616 | } |
8990e307 LW |
2617 | |
2618 | /* Look for a subroutine with this name in current package. */ | |
2619 | ||
85e6fe83 | 2620 | gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV); |
8990e307 | 2621 | |
a0d0e21e LW |
2622 | /* Presume this is going to be a bareword of some sort. */ |
2623 | ||
2624 | CLINE; | |
2625 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); | |
2626 | yylval.opval->op_private = OPpCONST_BARE; | |
2627 | ||
8990e307 LW |
2628 | /* See if it's the indirect object for a list operator. */ |
2629 | ||
a0d0e21e LW |
2630 | if (oldoldbufptr && |
2631 | oldoldbufptr < bufptr && | |
2632 | (oldoldbufptr == last_lop || oldoldbufptr == last_uni) && | |
2633 | /* NO SKIPSPACE BEFORE HERE! */ | |
2634 | (expect == XREF || | |
2635 | (opargs[last_lop_op] >> OASHIFT & 7) == OA_FILEREF) ) | |
2636 | { | |
748a9306 LW |
2637 | bool immediate_paren = *s == '('; |
2638 | ||
a0d0e21e LW |
2639 | /* (Now we can afford to cross potential line boundary.) */ |
2640 | s = skipspace(s); | |
2641 | ||
2642 | /* Two barewords in a row may indicate method call. */ | |
2643 | ||
2644 | if ((isALPHA(*s) || *s == '$') && (tmp=intuit_method(s,gv))) | |
2645 | return tmp; | |
2646 | ||
2647 | /* If not a declared subroutine, it's an indirect object. */ | |
2648 | /* (But it's an indir obj regardless for sort.) */ | |
2649 | ||
8e07c86e | 2650 | if ((last_lop_op == OP_SORT || |
8ebc5c01 | 2651 | (!immediate_paren && (!gv || !GvCVu(gv))) ) && |
8e07c86e | 2652 | (last_lop_op != OP_MAPSTART && last_lop_op != OP_GREPSTART)){ |
748a9306 LW |
2653 | expect = (last_lop == oldoldbufptr) ? XTERM : XOPERATOR; |
2654 | goto bareword; | |
93a17b20 LW |
2655 | } |
2656 | } | |
8990e307 LW |
2657 | |
2658 | /* If followed by a paren, it's certainly a subroutine. */ | |
2659 | ||
2660 | expect = XOPERATOR; | |
2661 | s = skipspace(s); | |
93a17b20 | 2662 | if (*s == '(') { |
79072805 | 2663 | CLINE; |
96e4d5b1 | 2664 | if (gv && GvCVu(gv)) { |
2665 | for (d = s + 1; *d == ' ' || *d == '\t'; d++) ; | |
2666 | if (*d == ')' && (sv = cv_const_sv(GvCV(gv)))) { | |
2667 | s = d + 1; | |
2668 | goto its_constant; | |
2669 | } | |
2670 | } | |
a0d0e21e | 2671 | nextval[nexttoke].opval = yylval.opval; |
463ee0b2 | 2672 | expect = XOPERATOR; |
93a17b20 | 2673 | force_next(WORD); |
c07a80fd | 2674 | yylval.ival = 0; |
463ee0b2 | 2675 | TOKEN('&'); |
79072805 | 2676 | } |
93a17b20 | 2677 | |
a0d0e21e | 2678 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 2679 | |
8ebc5c01 | 2680 | if ((*s == '$' || *s == '{') && (!gv || !GvCVu(gv))) { |
463ee0b2 | 2681 | last_lop = oldbufptr; |
8990e307 | 2682 | last_lop_op = OP_METHOD; |
93a17b20 | 2683 | PREBLOCK(METHOD); |
463ee0b2 LW |
2684 | } |
2685 | ||
8990e307 LW |
2686 | /* If followed by a bareword, see if it looks like indir obj. */ |
2687 | ||
a0d0e21e LW |
2688 | if ((isALPHA(*s) || *s == '$') && (tmp = intuit_method(s,gv))) |
2689 | return tmp; | |
93a17b20 | 2690 | |
8990e307 LW |
2691 | /* Not a method, so call it a subroutine (if defined) */ |
2692 | ||
8ebc5c01 | 2693 | if (gv && GvCVu(gv)) { |
46fc3d4c | 2694 | CV* cv; |
748a9306 | 2695 | if (lastchar == '-') |
c2960299 | 2696 | warn("Ambiguous use of -%s resolved as -&%s()", |
748a9306 | 2697 | tokenbuf, tokenbuf); |
8990e307 | 2698 | last_lop = oldbufptr; |
a0d0e21e | 2699 | last_lop_op = OP_ENTERSUB; |
89bfa8cd | 2700 | /* Check for a constant sub */ |
46fc3d4c | 2701 | cv = GvCV(gv); |
96e4d5b1 | 2702 | if ((sv = cv_const_sv(cv))) { |
2703 | its_constant: | |
2704 | SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv); | |
2705 | ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc(sv); | |
2706 | yylval.opval->op_private = 0; | |
2707 | TOKEN(WORD); | |
89bfa8cd | 2708 | } |
2709 | ||
a5f75d66 AD |
2710 | /* Resolve to GV now. */ |
2711 | op_free(yylval.opval); | |
2712 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
4633a7c4 LW |
2713 | /* Is there a prototype? */ |
2714 | if (SvPOK(cv)) { | |
2715 | STRLEN len; | |
2716 | char *proto = SvPV((SV*)cv, len); | |
2717 | if (!len) | |
2718 | TERM(FUNC0SUB); | |
2719 | if (strEQ(proto, "$")) | |
2720 | OPERATOR(UNIOPSUB); | |
2721 | if (*proto == '&' && *s == '{') { | |
2722 | sv_setpv(subname,"__ANON__"); | |
2723 | PREBLOCK(LSTOPSUB); | |
2724 | } | |
2725 | } | |
a5f75d66 | 2726 | nextval[nexttoke].opval = yylval.opval; |
8990e307 LW |
2727 | expect = XTERM; |
2728 | force_next(WORD); | |
2729 | TOKEN(NOAMP); | |
2730 | } | |
748a9306 LW |
2731 | |
2732 | if (hints & HINT_STRICT_SUBS && | |
2733 | lastchar != '-' && | |
a0d0e21e | 2734 | strnNE(s,"->",2) && |
9b01e405 | 2735 | last_lop_op != OP_TRUNCATE && /* S/F prototype in opcode.pl */ |
a0d0e21e LW |
2736 | last_lop_op != OP_ACCEPT && |
2737 | last_lop_op != OP_PIPE_OP && | |
2738 | last_lop_op != OP_SOCKPAIR) | |
2739 | { | |
2740 | warn( | |
2741 | "Bareword \"%s\" not allowed while \"strict subs\" in use", | |
85e6fe83 LW |
2742 | tokenbuf); |
2743 | ++error_count; | |
2744 | } | |
8990e307 LW |
2745 | |
2746 | /* Call it a bare word */ | |
2747 | ||
748a9306 LW |
2748 | bareword: |
2749 | if (dowarn) { | |
2750 | if (lastchar != '-') { | |
2751 | for (d = tokenbuf; *d && isLOWER(*d); d++) ; | |
2752 | if (!*d) | |
2753 | warn(warn_reserved, tokenbuf); | |
2754 | } | |
2755 | } | |
2756 | if (lastchar && strchr("*%&", lastchar)) { | |
2757 | warn("Operator or semicolon missing before %c%s", | |
2758 | lastchar, tokenbuf); | |
c2960299 | 2759 | warn("Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
2760 | lastchar, lastchar); |
2761 | } | |
93a17b20 | 2762 | TOKEN(WORD); |
79072805 | 2763 | } |
79072805 | 2764 | |
68dc0745 | 2765 | case KEY___FILE__: |
46fc3d4c | 2766 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
2767 | newSVsv(GvSV(curcop->cop_filegv))); | |
2768 | TERM(THING); | |
2769 | ||
79072805 | 2770 | case KEY___LINE__: |
46fc3d4c | 2771 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
2772 | newSVpvf("%ld", (long)curcop->cop_line)); | |
79072805 | 2773 | TERM(THING); |
68dc0745 | 2774 | |
2775 | case KEY___PACKAGE__: | |
2776 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, | |
2777 | (curstash | |
2778 | ? newSVsv(curstname) | |
2779 | : &sv_undef)); | |
79072805 | 2780 | TERM(THING); |
79072805 | 2781 | |
e50aee73 | 2782 | case KEY___DATA__: |
79072805 LW |
2783 | case KEY___END__: { |
2784 | GV *gv; | |
79072805 LW |
2785 | |
2786 | /*SUPPRESS 560*/ | |
a5f75d66 | 2787 | if (rsfp && (!in_eval || tokenbuf[2] == 'D')) { |
e50aee73 AD |
2788 | char *pname = "main"; |
2789 | if (tokenbuf[2] == 'D') | |
2790 | pname = HvNAME(curstash ? curstash : defstash); | |
46fc3d4c | 2791 | gv = gv_fetchpv(form("%s::DATA", pname), TRUE, SVt_PVIO); |
a5f75d66 | 2792 | GvMULTI_on(gv); |
79072805 | 2793 | if (!GvIO(gv)) |
a0d0e21e LW |
2794 | GvIOp(gv) = newIO(); |
2795 | IoIFP(GvIOp(gv)) = rsfp; | |
2796 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
2797 | { | |
760ac839 | 2798 | int fd = PerlIO_fileno(rsfp); |
a0d0e21e LW |
2799 | fcntl(fd,F_SETFD,fd >= 3); |
2800 | } | |
79072805 | 2801 | #endif |
fd049845 | 2802 | /* Mark this internal pseudo-handle as clean */ |
2803 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
79072805 | 2804 | if (preprocess) |
a0d0e21e | 2805 | IoTYPE(GvIOp(gv)) = '|'; |
760ac839 | 2806 | else if ((PerlIO*)rsfp == PerlIO_stdin()) |
a0d0e21e | 2807 | IoTYPE(GvIOp(gv)) = '-'; |
79072805 | 2808 | else |
a0d0e21e | 2809 | IoTYPE(GvIOp(gv)) = '<'; |
79072805 LW |
2810 | rsfp = Nullfp; |
2811 | } | |
2812 | goto fake_eof; | |
e929a76b | 2813 | } |
de3bb511 | 2814 | |
8990e307 | 2815 | case KEY_AUTOLOAD: |
ed6116ce | 2816 | case KEY_DESTROY: |
79072805 LW |
2817 | case KEY_BEGIN: |
2818 | case KEY_END: | |
7d07dbc2 | 2819 | case KEY_INIT: |
a0d0e21e | 2820 | if (expect == XSTATE) { |
93a17b20 LW |
2821 | s = bufptr; |
2822 | goto really_sub; | |
79072805 LW |
2823 | } |
2824 | goto just_a_word; | |
2825 | ||
a0d0e21e LW |
2826 | case KEY_CORE: |
2827 | if (*s == ':' && s[1] == ':') { | |
2828 | s += 2; | |
748a9306 | 2829 | d = s; |
8903cb82 | 2830 | s = scan_word(s, tokenbuf, sizeof tokenbuf, FALSE, &len); |
a0d0e21e LW |
2831 | tmp = keyword(tokenbuf, len); |
2832 | if (tmp < 0) | |
2833 | tmp = -tmp; | |
2834 | goto reserved_word; | |
2835 | } | |
2836 | goto just_a_word; | |
2837 | ||
463ee0b2 LW |
2838 | case KEY_abs: |
2839 | UNI(OP_ABS); | |
2840 | ||
79072805 LW |
2841 | case KEY_alarm: |
2842 | UNI(OP_ALARM); | |
2843 | ||
2844 | case KEY_accept: | |
a0d0e21e | 2845 | LOP(OP_ACCEPT,XTERM); |
79072805 | 2846 | |
463ee0b2 LW |
2847 | case KEY_and: |
2848 | OPERATOR(ANDOP); | |
2849 | ||
79072805 | 2850 | case KEY_atan2: |
a0d0e21e | 2851 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 2852 | |
79072805 | 2853 | case KEY_bind: |
a0d0e21e | 2854 | LOP(OP_BIND,XTERM); |
79072805 LW |
2855 | |
2856 | case KEY_binmode: | |
2857 | UNI(OP_BINMODE); | |
2858 | ||
2859 | case KEY_bless: | |
a0d0e21e | 2860 | LOP(OP_BLESS,XTERM); |
79072805 LW |
2861 | |
2862 | case KEY_chop: | |
2863 | UNI(OP_CHOP); | |
2864 | ||
2865 | case KEY_continue: | |
2866 | PREBLOCK(CONTINUE); | |
2867 | ||
2868 | case KEY_chdir: | |
85e6fe83 | 2869 | (void)gv_fetchpv("ENV",TRUE, SVt_PVHV); /* may use HOME */ |
79072805 LW |
2870 | UNI(OP_CHDIR); |
2871 | ||
2872 | case KEY_close: | |
2873 | UNI(OP_CLOSE); | |
2874 | ||
2875 | case KEY_closedir: | |
2876 | UNI(OP_CLOSEDIR); | |
2877 | ||
2878 | case KEY_cmp: | |
2879 | Eop(OP_SCMP); | |
2880 | ||
2881 | case KEY_caller: | |
2882 | UNI(OP_CALLER); | |
2883 | ||
2884 | case KEY_crypt: | |
2885 | #ifdef FCRYPT | |
de3bb511 LW |
2886 | if (!cryptseen++) |
2887 | init_des(); | |
a687059c | 2888 | #endif |
a0d0e21e | 2889 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
2890 | |
2891 | case KEY_chmod: | |
748a9306 LW |
2892 | if (dowarn) { |
2893 | for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ; | |
2894 | if (*d != '0' && isDIGIT(*d)) | |
2895 | yywarn("chmod: mode argument is missing initial 0"); | |
2896 | } | |
a0d0e21e | 2897 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
2898 | |
2899 | case KEY_chown: | |
a0d0e21e | 2900 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
2901 | |
2902 | case KEY_connect: | |
a0d0e21e | 2903 | LOP(OP_CONNECT,XTERM); |
79072805 | 2904 | |
463ee0b2 LW |
2905 | case KEY_chr: |
2906 | UNI(OP_CHR); | |
2907 | ||
79072805 LW |
2908 | case KEY_cos: |
2909 | UNI(OP_COS); | |
2910 | ||
2911 | case KEY_chroot: | |
2912 | UNI(OP_CHROOT); | |
2913 | ||
2914 | case KEY_do: | |
2915 | s = skipspace(s); | |
2916 | if (*s == '{') | |
a0d0e21e | 2917 | PRETERMBLOCK(DO); |
79072805 | 2918 | if (*s != '\'') |
a0d0e21e | 2919 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
378cc40b | 2920 | OPERATOR(DO); |
79072805 LW |
2921 | |
2922 | case KEY_die: | |
a0d0e21e LW |
2923 | hints |= HINT_BLOCK_SCOPE; |
2924 | LOP(OP_DIE,XTERM); | |
79072805 LW |
2925 | |
2926 | case KEY_defined: | |
2927 | UNI(OP_DEFINED); | |
2928 | ||
2929 | case KEY_delete: | |
a0d0e21e | 2930 | UNI(OP_DELETE); |
79072805 LW |
2931 | |
2932 | case KEY_dbmopen: | |
a0d0e21e LW |
2933 | gv_fetchpv("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
2934 | LOP(OP_DBMOPEN,XTERM); | |
79072805 LW |
2935 | |
2936 | case KEY_dbmclose: | |
2937 | UNI(OP_DBMCLOSE); | |
2938 | ||
2939 | case KEY_dump: | |
a0d0e21e | 2940 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
2941 | LOOPX(OP_DUMP); |
2942 | ||
2943 | case KEY_else: | |
2944 | PREBLOCK(ELSE); | |
2945 | ||
2946 | case KEY_elsif: | |
2947 | yylval.ival = curcop->cop_line; | |
2948 | OPERATOR(ELSIF); | |
2949 | ||
2950 | case KEY_eq: | |
2951 | Eop(OP_SEQ); | |
2952 | ||
a0d0e21e LW |
2953 | case KEY_exists: |
2954 | UNI(OP_EXISTS); | |
2955 | ||
79072805 LW |
2956 | case KEY_exit: |
2957 | UNI(OP_EXIT); | |
2958 | ||
2959 | case KEY_eval: | |
79072805 | 2960 | s = skipspace(s); |
a0d0e21e | 2961 | expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 2962 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
2963 | |
2964 | case KEY_eof: | |
2965 | UNI(OP_EOF); | |
2966 | ||
2967 | case KEY_exp: | |
2968 | UNI(OP_EXP); | |
2969 | ||
2970 | case KEY_each: | |
2971 | UNI(OP_EACH); | |
2972 | ||
2973 | case KEY_exec: | |
2974 | set_csh(); | |
a0d0e21e | 2975 | LOP(OP_EXEC,XREF); |
79072805 LW |
2976 | |
2977 | case KEY_endhostent: | |
2978 | FUN0(OP_EHOSTENT); | |
2979 | ||
2980 | case KEY_endnetent: | |
2981 | FUN0(OP_ENETENT); | |
2982 | ||
2983 | case KEY_endservent: | |
2984 | FUN0(OP_ESERVENT); | |
2985 | ||
2986 | case KEY_endprotoent: | |
2987 | FUN0(OP_EPROTOENT); | |
2988 | ||
2989 | case KEY_endpwent: | |
2990 | FUN0(OP_EPWENT); | |
2991 | ||
2992 | case KEY_endgrent: | |
2993 | FUN0(OP_EGRENT); | |
2994 | ||
2995 | case KEY_for: | |
2996 | case KEY_foreach: | |
2997 | yylval.ival = curcop->cop_line; | |
55497cff | 2998 | s = skipspace(s); |
2999 | if (isIDFIRST(*s)) { | |
3000 | char *p = s; | |
3001 | if ((bufend - p) >= 3 && | |
3002 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) | |
3003 | p += 2; | |
3004 | p = skipspace(p); | |
3005 | if (isIDFIRST(*p)) | |
3006 | croak("Missing $ on loop variable"); | |
3007 | } | |
79072805 LW |
3008 | OPERATOR(FOR); |
3009 | ||
3010 | case KEY_formline: | |
a0d0e21e | 3011 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
3012 | |
3013 | case KEY_fork: | |
3014 | FUN0(OP_FORK); | |
3015 | ||
3016 | case KEY_fcntl: | |
a0d0e21e | 3017 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
3018 | |
3019 | case KEY_fileno: | |
3020 | UNI(OP_FILENO); | |
3021 | ||
3022 | case KEY_flock: | |
a0d0e21e | 3023 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
3024 | |
3025 | case KEY_gt: | |
3026 | Rop(OP_SGT); | |
3027 | ||
3028 | case KEY_ge: | |
3029 | Rop(OP_SGE); | |
3030 | ||
3031 | case KEY_grep: | |
a0d0e21e | 3032 | LOP(OP_GREPSTART, *s == '(' ? XTERM : XREF); |
79072805 LW |
3033 | |
3034 | case KEY_goto: | |
a0d0e21e | 3035 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
3036 | LOOPX(OP_GOTO); |
3037 | ||
3038 | case KEY_gmtime: | |
3039 | UNI(OP_GMTIME); | |
3040 | ||
3041 | case KEY_getc: | |
3042 | UNI(OP_GETC); | |
3043 | ||
3044 | case KEY_getppid: | |
3045 | FUN0(OP_GETPPID); | |
3046 | ||
3047 | case KEY_getpgrp: | |
3048 | UNI(OP_GETPGRP); | |
3049 | ||
3050 | case KEY_getpriority: | |
a0d0e21e | 3051 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
3052 | |
3053 | case KEY_getprotobyname: | |
3054 | UNI(OP_GPBYNAME); | |
3055 | ||
3056 | case KEY_getprotobynumber: | |
a0d0e21e | 3057 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
3058 | |
3059 | case KEY_getprotoent: | |
3060 | FUN0(OP_GPROTOENT); | |
3061 | ||
3062 | case KEY_getpwent: | |
3063 | FUN0(OP_GPWENT); | |
3064 | ||
3065 | case KEY_getpwnam: | |
ff68c719 | 3066 | UNI(OP_GPWNAM); |
79072805 LW |
3067 | |
3068 | case KEY_getpwuid: | |
ff68c719 | 3069 | UNI(OP_GPWUID); |
79072805 LW |
3070 | |
3071 | case KEY_getpeername: | |
3072 | UNI(OP_GETPEERNAME); | |
3073 | ||
3074 | case KEY_gethostbyname: | |
3075 | UNI(OP_GHBYNAME); | |
3076 | ||
3077 | case KEY_gethostbyaddr: | |
a0d0e21e | 3078 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
3079 | |
3080 | case KEY_gethostent: | |
3081 | FUN0(OP_GHOSTENT); | |
3082 | ||
3083 | case KEY_getnetbyname: | |
3084 | UNI(OP_GNBYNAME); | |
3085 | ||
3086 | case KEY_getnetbyaddr: | |
a0d0e21e | 3087 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
3088 | |
3089 | case KEY_getnetent: | |
3090 | FUN0(OP_GNETENT); | |
3091 | ||
3092 | case KEY_getservbyname: | |
a0d0e21e | 3093 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
3094 | |
3095 | case KEY_getservbyport: | |
a0d0e21e | 3096 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
3097 | |
3098 | case KEY_getservent: | |
3099 | FUN0(OP_GSERVENT); | |
3100 | ||
3101 | case KEY_getsockname: | |
3102 | UNI(OP_GETSOCKNAME); | |
3103 | ||
3104 | case KEY_getsockopt: | |
a0d0e21e | 3105 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
3106 | |
3107 | case KEY_getgrent: | |
3108 | FUN0(OP_GGRENT); | |
3109 | ||
3110 | case KEY_getgrnam: | |
ff68c719 | 3111 | UNI(OP_GGRNAM); |
79072805 LW |
3112 | |
3113 | case KEY_getgrgid: | |
ff68c719 | 3114 | UNI(OP_GGRGID); |
79072805 LW |
3115 | |
3116 | case KEY_getlogin: | |
3117 | FUN0(OP_GETLOGIN); | |
3118 | ||
93a17b20 | 3119 | case KEY_glob: |
a0d0e21e LW |
3120 | set_csh(); |
3121 | LOP(OP_GLOB,XTERM); | |
93a17b20 | 3122 | |
79072805 LW |
3123 | case KEY_hex: |
3124 | UNI(OP_HEX); | |
3125 | ||
3126 | case KEY_if: | |
3127 | yylval.ival = curcop->cop_line; | |
3128 | OPERATOR(IF); | |
3129 | ||
3130 | case KEY_index: | |
a0d0e21e | 3131 | LOP(OP_INDEX,XTERM); |
79072805 LW |
3132 | |
3133 | case KEY_int: | |
3134 | UNI(OP_INT); | |
3135 | ||
3136 | case KEY_ioctl: | |
a0d0e21e | 3137 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
3138 | |
3139 | case KEY_join: | |
a0d0e21e | 3140 | LOP(OP_JOIN,XTERM); |
79072805 LW |
3141 | |
3142 | case KEY_keys: | |
3143 | UNI(OP_KEYS); | |
3144 | ||
3145 | case KEY_kill: | |
a0d0e21e | 3146 | LOP(OP_KILL,XTERM); |
79072805 LW |
3147 | |
3148 | case KEY_last: | |
a0d0e21e | 3149 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 3150 | LOOPX(OP_LAST); |
a0d0e21e | 3151 | |
79072805 LW |
3152 | case KEY_lc: |
3153 | UNI(OP_LC); | |
3154 | ||
3155 | case KEY_lcfirst: | |
3156 | UNI(OP_LCFIRST); | |
3157 | ||
3158 | case KEY_local: | |
3159 | OPERATOR(LOCAL); | |
3160 | ||
3161 | case KEY_length: | |
3162 | UNI(OP_LENGTH); | |
3163 | ||
3164 | case KEY_lt: | |
3165 | Rop(OP_SLT); | |
3166 | ||
3167 | case KEY_le: | |
3168 | Rop(OP_SLE); | |
3169 | ||
3170 | case KEY_localtime: | |
3171 | UNI(OP_LOCALTIME); | |
3172 | ||
3173 | case KEY_log: | |
3174 | UNI(OP_LOG); | |
3175 | ||
3176 | case KEY_link: | |
a0d0e21e | 3177 | LOP(OP_LINK,XTERM); |
79072805 LW |
3178 | |
3179 | case KEY_listen: | |
a0d0e21e | 3180 | LOP(OP_LISTEN,XTERM); |
79072805 | 3181 | |
c0329465 MB |
3182 | case KEY_lock: |
3183 | UNI(OP_LOCK); | |
3184 | ||
79072805 LW |
3185 | case KEY_lstat: |
3186 | UNI(OP_LSTAT); | |
3187 | ||
3188 | case KEY_m: | |
3189 | s = scan_pat(s); | |
3190 | TERM(sublex_start()); | |
3191 | ||
a0d0e21e LW |
3192 | case KEY_map: |
3193 | LOP(OP_MAPSTART,XREF); | |
3194 | ||
79072805 | 3195 | case KEY_mkdir: |
a0d0e21e | 3196 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
3197 | |
3198 | case KEY_msgctl: | |
a0d0e21e | 3199 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
3200 | |
3201 | case KEY_msgget: | |
a0d0e21e | 3202 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
3203 | |
3204 | case KEY_msgrcv: | |
a0d0e21e | 3205 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
3206 | |
3207 | case KEY_msgsnd: | |
a0d0e21e | 3208 | LOP(OP_MSGSND,XTERM); |
79072805 | 3209 | |
93a17b20 LW |
3210 | case KEY_my: |
3211 | in_my = TRUE; | |
c750a3ec MB |
3212 | s = skipspace(s); |
3213 | if (isIDFIRST(*s)) { | |
97fcbf96 | 3214 | s = scan_word(s, tokenbuf, sizeof tokenbuf, TRUE, &len); |
c750a3ec MB |
3215 | in_my_stash = gv_stashpv(tokenbuf, FALSE); |
3216 | if (!in_my_stash) { | |
3217 | char tmpbuf[1024]; | |
3218 | bufptr = s; | |
3219 | sprintf(tmpbuf, "No such class %.1000s", tokenbuf); | |
3220 | yyerror(tmpbuf); | |
3221 | } | |
3222 | } | |
55497cff | 3223 | OPERATOR(MY); |
93a17b20 | 3224 | |
79072805 | 3225 | case KEY_next: |
a0d0e21e | 3226 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
3227 | LOOPX(OP_NEXT); |
3228 | ||
3229 | case KEY_ne: | |
3230 | Eop(OP_SNE); | |
3231 | ||
a0d0e21e LW |
3232 | case KEY_no: |
3233 | if (expect != XSTATE) | |
3234 | yyerror("\"no\" not allowed in expression"); | |
3235 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
89bfa8cd | 3236 | s = force_version(s); |
a0d0e21e LW |
3237 | yylval.ival = 0; |
3238 | OPERATOR(USE); | |
3239 | ||
3240 | case KEY_not: | |
3241 | OPERATOR(NOTOP); | |
3242 | ||
79072805 | 3243 | case KEY_open: |
93a17b20 LW |
3244 | s = skipspace(s); |
3245 | if (isIDFIRST(*s)) { | |
3246 | char *t; | |
3247 | for (d = s; isALNUM(*d); d++) ; | |
3248 | t = skipspace(d); | |
3249 | if (strchr("|&*+-=!?:.", *t)) | |
3250 | warn("Precedence problem: open %.*s should be open(%.*s)", | |
3251 | d-s,s, d-s,s); | |
3252 | } | |
a0d0e21e | 3253 | LOP(OP_OPEN,XTERM); |
79072805 | 3254 | |
463ee0b2 | 3255 | case KEY_or: |
a0d0e21e | 3256 | yylval.ival = OP_OR; |
463ee0b2 LW |
3257 | OPERATOR(OROP); |
3258 | ||
79072805 LW |
3259 | case KEY_ord: |
3260 | UNI(OP_ORD); | |
3261 | ||
3262 | case KEY_oct: | |
3263 | UNI(OP_OCT); | |
3264 | ||
3265 | case KEY_opendir: | |
a0d0e21e | 3266 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
3267 | |
3268 | case KEY_print: | |
3269 | checkcomma(s,tokenbuf,"filehandle"); | |
a0d0e21e | 3270 | LOP(OP_PRINT,XREF); |
79072805 LW |
3271 | |
3272 | case KEY_printf: | |
3273 | checkcomma(s,tokenbuf,"filehandle"); | |
a0d0e21e | 3274 | LOP(OP_PRTF,XREF); |
79072805 | 3275 | |
c07a80fd | 3276 | case KEY_prototype: |
3277 | UNI(OP_PROTOTYPE); | |
3278 | ||
79072805 | 3279 | case KEY_push: |
a0d0e21e | 3280 | LOP(OP_PUSH,XTERM); |
79072805 LW |
3281 | |
3282 | case KEY_pop: | |
3283 | UNI(OP_POP); | |
3284 | ||
a0d0e21e LW |
3285 | case KEY_pos: |
3286 | UNI(OP_POS); | |
3287 | ||
79072805 | 3288 | case KEY_pack: |
a0d0e21e | 3289 | LOP(OP_PACK,XTERM); |
79072805 LW |
3290 | |
3291 | case KEY_package: | |
a0d0e21e | 3292 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
3293 | OPERATOR(PACKAGE); |
3294 | ||
3295 | case KEY_pipe: | |
a0d0e21e | 3296 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
3297 | |
3298 | case KEY_q: | |
3299 | s = scan_str(s); | |
3300 | if (!s) | |
85e6fe83 | 3301 | missingterm((char*)0); |
79072805 LW |
3302 | yylval.ival = OP_CONST; |
3303 | TERM(sublex_start()); | |
3304 | ||
a0d0e21e LW |
3305 | case KEY_quotemeta: |
3306 | UNI(OP_QUOTEMETA); | |
3307 | ||
8990e307 LW |
3308 | case KEY_qw: |
3309 | s = scan_str(s); | |
3310 | if (!s) | |
85e6fe83 | 3311 | missingterm((char*)0); |
55497cff | 3312 | if (dowarn && SvLEN(lex_stuff)) { |
3313 | d = SvPV_force(lex_stuff, len); | |
3314 | for (; len; --len, ++d) { | |
3315 | if (*d == ',') { | |
3316 | warn("Possible attempt to separate words with commas"); | |
3317 | break; | |
3318 | } | |
3319 | if (*d == '#') { | |
3320 | warn("Possible attempt to put comments in qw() list"); | |
3321 | break; | |
3322 | } | |
3323 | } | |
3324 | } | |
8990e307 LW |
3325 | force_next(')'); |
3326 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, q(lex_stuff)); | |
3327 | lex_stuff = Nullsv; | |
3328 | force_next(THING); | |
3329 | force_next(','); | |
3330 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(" ",1)); | |
3331 | force_next(THING); | |
3332 | force_next('('); | |
a0d0e21e LW |
3333 | yylval.ival = OP_SPLIT; |
3334 | CLINE; | |
3335 | expect = XTERM; | |
3336 | bufptr = s; | |
3337 | last_lop = oldbufptr; | |
3338 | last_lop_op = OP_SPLIT; | |
3339 | return FUNC; | |
8990e307 | 3340 | |
79072805 LW |
3341 | case KEY_qq: |
3342 | s = scan_str(s); | |
3343 | if (!s) | |
85e6fe83 | 3344 | missingterm((char*)0); |
a0d0e21e | 3345 | yylval.ival = OP_STRINGIFY; |
ed6116ce LW |
3346 | if (SvIVX(lex_stuff) == '\'') |
3347 | SvIVX(lex_stuff) = 0; /* qq'$foo' should intepolate */ | |
79072805 LW |
3348 | TERM(sublex_start()); |
3349 | ||
3350 | case KEY_qx: | |
3351 | s = scan_str(s); | |
3352 | if (!s) | |
85e6fe83 | 3353 | missingterm((char*)0); |
79072805 LW |
3354 | yylval.ival = OP_BACKTICK; |
3355 | set_csh(); | |
3356 | TERM(sublex_start()); | |
3357 | ||
3358 | case KEY_return: | |
3359 | OLDLOP(OP_RETURN); | |
3360 | ||
3361 | case KEY_require: | |
748a9306 | 3362 | *tokenbuf = '\0'; |
a0d0e21e | 3363 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
748a9306 | 3364 | if (isIDFIRST(*tokenbuf)) |
89bfa8cd | 3365 | gv_stashpvn(tokenbuf, strlen(tokenbuf), TRUE); |
748a9306 | 3366 | else if (*s == '<') |
a0d0e21e | 3367 | yyerror("<> should be quotes"); |
463ee0b2 | 3368 | UNI(OP_REQUIRE); |
79072805 LW |
3369 | |
3370 | case KEY_reset: | |
3371 | UNI(OP_RESET); | |
3372 | ||
3373 | case KEY_redo: | |
a0d0e21e | 3374 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
3375 | LOOPX(OP_REDO); |
3376 | ||
3377 | case KEY_rename: | |
a0d0e21e | 3378 | LOP(OP_RENAME,XTERM); |
79072805 LW |
3379 | |
3380 | case KEY_rand: | |
3381 | UNI(OP_RAND); | |
3382 | ||
3383 | case KEY_rmdir: | |
3384 | UNI(OP_RMDIR); | |
3385 | ||
3386 | case KEY_rindex: | |
a0d0e21e | 3387 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
3388 | |
3389 | case KEY_read: | |
a0d0e21e | 3390 | LOP(OP_READ,XTERM); |
79072805 LW |
3391 | |
3392 | case KEY_readdir: | |
3393 | UNI(OP_READDIR); | |
3394 | ||
93a17b20 LW |
3395 | case KEY_readline: |
3396 | set_csh(); | |
3397 | UNI(OP_READLINE); | |
3398 | ||
3399 | case KEY_readpipe: | |
3400 | set_csh(); | |
3401 | UNI(OP_BACKTICK); | |
3402 | ||
79072805 LW |
3403 | case KEY_rewinddir: |
3404 | UNI(OP_REWINDDIR); | |
3405 | ||
3406 | case KEY_recv: | |
a0d0e21e | 3407 | LOP(OP_RECV,XTERM); |
79072805 LW |
3408 | |
3409 | case KEY_reverse: | |
a0d0e21e | 3410 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
3411 | |
3412 | case KEY_readlink: | |
3413 | UNI(OP_READLINK); | |
3414 | ||
3415 | case KEY_ref: | |
3416 | UNI(OP_REF); | |
3417 | ||
3418 | case KEY_s: | |
3419 | s = scan_subst(s); | |
3420 | if (yylval.opval) | |
3421 | TERM(sublex_start()); | |
3422 | else | |
3423 | TOKEN(1); /* force error */ | |
3424 | ||
a0d0e21e LW |
3425 | case KEY_chomp: |
3426 | UNI(OP_CHOMP); | |
3427 | ||
79072805 LW |
3428 | case KEY_scalar: |
3429 | UNI(OP_SCALAR); | |
3430 | ||
3431 | case KEY_select: | |
a0d0e21e | 3432 | LOP(OP_SELECT,XTERM); |
79072805 LW |
3433 | |
3434 | case KEY_seek: | |
a0d0e21e | 3435 | LOP(OP_SEEK,XTERM); |
79072805 LW |
3436 | |
3437 | case KEY_semctl: | |
a0d0e21e | 3438 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
3439 | |
3440 | case KEY_semget: | |
a0d0e21e | 3441 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
3442 | |
3443 | case KEY_semop: | |
a0d0e21e | 3444 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
3445 | |
3446 | case KEY_send: | |
a0d0e21e | 3447 | LOP(OP_SEND,XTERM); |
79072805 LW |
3448 | |
3449 | case KEY_setpgrp: | |
a0d0e21e | 3450 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
3451 | |
3452 | case KEY_setpriority: | |
a0d0e21e | 3453 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
3454 | |
3455 | case KEY_sethostent: | |
ff68c719 | 3456 | UNI(OP_SHOSTENT); |
79072805 LW |
3457 | |
3458 | case KEY_setnetent: | |
ff68c719 | 3459 | UNI(OP_SNETENT); |
79072805 LW |
3460 | |
3461 | case KEY_setservent: | |
ff68c719 | 3462 | UNI(OP_SSERVENT); |
79072805 LW |
3463 | |
3464 | case KEY_setprotoent: | |
ff68c719 | 3465 | UNI(OP_SPROTOENT); |
79072805 LW |
3466 | |
3467 | case KEY_setpwent: | |
3468 | FUN0(OP_SPWENT); | |
3469 | ||
3470 | case KEY_setgrent: | |
3471 | FUN0(OP_SGRENT); | |
3472 | ||
3473 | case KEY_seekdir: | |
a0d0e21e | 3474 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
3475 | |
3476 | case KEY_setsockopt: | |
a0d0e21e | 3477 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
3478 | |
3479 | case KEY_shift: | |
3480 | UNI(OP_SHIFT); | |
3481 | ||
3482 | case KEY_shmctl: | |
a0d0e21e | 3483 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
3484 | |
3485 | case KEY_shmget: | |
a0d0e21e | 3486 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
3487 | |
3488 | case KEY_shmread: | |
a0d0e21e | 3489 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
3490 | |
3491 | case KEY_shmwrite: | |
a0d0e21e | 3492 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
3493 | |
3494 | case KEY_shutdown: | |
a0d0e21e | 3495 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
3496 | |
3497 | case KEY_sin: | |
3498 | UNI(OP_SIN); | |
3499 | ||
3500 | case KEY_sleep: | |
3501 | UNI(OP_SLEEP); | |
3502 | ||
3503 | case KEY_socket: | |
a0d0e21e | 3504 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
3505 | |
3506 | case KEY_socketpair: | |
a0d0e21e | 3507 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
3508 | |
3509 | case KEY_sort: | |
3510 | checkcomma(s,tokenbuf,"subroutine name"); | |
3511 | s = skipspace(s); | |
3512 | if (*s == ';' || *s == ')') /* probably a close */ | |
463ee0b2 LW |
3513 | croak("sort is now a reserved word"); |
3514 | expect = XTERM; | |
a0d0e21e LW |
3515 | s = force_word(s,WORD,TRUE,TRUE,TRUE); |
3516 | LOP(OP_SORT,XREF); | |
79072805 LW |
3517 | |
3518 | case KEY_split: | |
a0d0e21e | 3519 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
3520 | |
3521 | case KEY_sprintf: | |
a0d0e21e | 3522 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
3523 | |
3524 | case KEY_splice: | |
a0d0e21e | 3525 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
3526 | |
3527 | case KEY_sqrt: | |
3528 | UNI(OP_SQRT); | |
3529 | ||
3530 | case KEY_srand: | |
3531 | UNI(OP_SRAND); | |
3532 | ||
3533 | case KEY_stat: | |
3534 | UNI(OP_STAT); | |
3535 | ||
3536 | case KEY_study: | |
3537 | sawstudy++; | |
3538 | UNI(OP_STUDY); | |
3539 | ||
3540 | case KEY_substr: | |
a0d0e21e | 3541 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
3542 | |
3543 | case KEY_format: | |
3544 | case KEY_sub: | |
93a17b20 | 3545 | really_sub: |
79072805 | 3546 | s = skipspace(s); |
4633a7c4 | 3547 | |
463ee0b2 | 3548 | if (isIDFIRST(*s) || *s == '\'' || *s == ':') { |
8903cb82 | 3549 | char tmpbuf[sizeof tokenbuf]; |
4633a7c4 | 3550 | expect = XBLOCK; |
8903cb82 | 3551 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
463ee0b2 LW |
3552 | if (strchr(tmpbuf, ':')) |
3553 | sv_setpv(subname, tmpbuf); | |
3554 | else { | |
3555 | sv_setsv(subname,curstname); | |
8990e307 | 3556 | sv_catpvn(subname,"::",2); |
463ee0b2 LW |
3557 | sv_catpvn(subname,tmpbuf,len); |
3558 | } | |
a0d0e21e | 3559 | s = force_word(s,WORD,FALSE,TRUE,TRUE); |
4633a7c4 | 3560 | s = skipspace(s); |
79072805 | 3561 | } |
4633a7c4 LW |
3562 | else { |
3563 | expect = XTERMBLOCK; | |
79072805 | 3564 | sv_setpv(subname,"?"); |
4633a7c4 LW |
3565 | } |
3566 | ||
3567 | if (tmp == KEY_format) { | |
3568 | s = skipspace(s); | |
3569 | if (*s == '=') | |
3570 | lex_formbrack = lex_brackets + 1; | |
3571 | OPERATOR(FORMAT); | |
3572 | } | |
79072805 | 3573 | |
4633a7c4 LW |
3574 | /* Look for a prototype */ |
3575 | if (*s == '(') { | |
68dc0745 | 3576 | char *p; |
3577 | ||
4633a7c4 LW |
3578 | s = scan_str(s); |
3579 | if (!s) { | |
3580 | if (lex_stuff) | |
3581 | SvREFCNT_dec(lex_stuff); | |
3582 | lex_stuff = Nullsv; | |
3583 | croak("Prototype not terminated"); | |
3584 | } | |
68dc0745 | 3585 | /* strip spaces */ |
3586 | d = SvPVX(lex_stuff); | |
3587 | tmp = 0; | |
3588 | for (p = d; *p; ++p) { | |
3589 | if (!isSPACE(*p)) | |
3590 | d[tmp++] = *p; | |
3591 | } | |
3592 | d[tmp] = '\0'; | |
3593 | SvCUR(lex_stuff) = tmp; | |
3594 | ||
4633a7c4 LW |
3595 | nexttoke++; |
3596 | nextval[1] = nextval[0]; | |
3597 | nexttype[1] = nexttype[0]; | |
3598 | nextval[0].opval = (OP*)newSVOP(OP_CONST, 0, lex_stuff); | |
3599 | nexttype[0] = THING; | |
3600 | if (nexttoke == 1) { | |
3601 | lex_defer = lex_state; | |
3602 | lex_expect = expect; | |
3603 | lex_state = LEX_KNOWNEXT; | |
3604 | } | |
3605 | lex_stuff = Nullsv; | |
3606 | } | |
79072805 | 3607 | |
4633a7c4 LW |
3608 | if (*SvPV(subname,na) == '?') { |
3609 | sv_setpv(subname,"__ANON__"); | |
3610 | TOKEN(ANONSUB); | |
3611 | } | |
3612 | PREBLOCK(SUB); | |
79072805 LW |
3613 | |
3614 | case KEY_system: | |
3615 | set_csh(); | |
a0d0e21e | 3616 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
3617 | |
3618 | case KEY_symlink: | |
a0d0e21e | 3619 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
3620 | |
3621 | case KEY_syscall: | |
a0d0e21e | 3622 | LOP(OP_SYSCALL,XTERM); |
79072805 | 3623 | |
c07a80fd | 3624 | case KEY_sysopen: |
3625 | LOP(OP_SYSOPEN,XTERM); | |
3626 | ||
137443ea | 3627 | case KEY_sysseek: |
3628 | LOP(OP_SYSSEEK,XTERM); | |
3629 | ||
79072805 | 3630 | case KEY_sysread: |
a0d0e21e | 3631 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
3632 | |
3633 | case KEY_syswrite: | |
a0d0e21e | 3634 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
3635 | |
3636 | case KEY_tr: | |
3637 | s = scan_trans(s); | |
3638 | TERM(sublex_start()); | |
3639 | ||
3640 | case KEY_tell: | |
3641 | UNI(OP_TELL); | |
3642 | ||
3643 | case KEY_telldir: | |
3644 | UNI(OP_TELLDIR); | |
3645 | ||
463ee0b2 | 3646 | case KEY_tie: |
a0d0e21e | 3647 | LOP(OP_TIE,XTERM); |
463ee0b2 | 3648 | |
c07a80fd | 3649 | case KEY_tied: |
3650 | UNI(OP_TIED); | |
3651 | ||
79072805 LW |
3652 | case KEY_time: |
3653 | FUN0(OP_TIME); | |
3654 | ||
3655 | case KEY_times: | |
3656 | FUN0(OP_TMS); | |
3657 | ||
3658 | case KEY_truncate: | |
a0d0e21e | 3659 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
3660 | |
3661 | case KEY_uc: | |
3662 | UNI(OP_UC); | |
3663 | ||
3664 | case KEY_ucfirst: | |
3665 | UNI(OP_UCFIRST); | |
3666 | ||
463ee0b2 LW |
3667 | case KEY_untie: |
3668 | UNI(OP_UNTIE); | |
3669 | ||
79072805 LW |
3670 | case KEY_until: |
3671 | yylval.ival = curcop->cop_line; | |
3672 | OPERATOR(UNTIL); | |
3673 | ||
3674 | case KEY_unless: | |
3675 | yylval.ival = curcop->cop_line; | |
3676 | OPERATOR(UNLESS); | |
3677 | ||
3678 | case KEY_unlink: | |
a0d0e21e | 3679 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
3680 | |
3681 | case KEY_undef: | |
3682 | UNI(OP_UNDEF); | |
3683 | ||
3684 | case KEY_unpack: | |
a0d0e21e | 3685 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
3686 | |
3687 | case KEY_utime: | |
a0d0e21e | 3688 | LOP(OP_UTIME,XTERM); |
79072805 LW |
3689 | |
3690 | case KEY_umask: | |
748a9306 LW |
3691 | if (dowarn) { |
3692 | for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ; | |
3693 | if (*d != '0' && isDIGIT(*d)) | |
3694 | yywarn("umask: argument is missing initial 0"); | |
3695 | } | |
79072805 LW |
3696 | UNI(OP_UMASK); |
3697 | ||
3698 | case KEY_unshift: | |
a0d0e21e LW |
3699 | LOP(OP_UNSHIFT,XTERM); |
3700 | ||
3701 | case KEY_use: | |
3702 | if (expect != XSTATE) | |
3703 | yyerror("\"use\" not allowed in expression"); | |
89bfa8cd | 3704 | s = skipspace(s); |
3705 | if(isDIGIT(*s)) { | |
3706 | s = force_version(s); | |
3707 | if(*s == ';' || (s = skipspace(s), *s == ';')) { | |
3708 | nextval[nexttoke].opval = Nullop; | |
3709 | force_next(WORD); | |
3710 | } | |
3711 | } | |
3712 | else { | |
3713 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3714 | s = force_version(s); | |
3715 | } | |
a0d0e21e LW |
3716 | yylval.ival = 1; |
3717 | OPERATOR(USE); | |
79072805 LW |
3718 | |
3719 | case KEY_values: | |
3720 | UNI(OP_VALUES); | |
3721 | ||
3722 | case KEY_vec: | |
3723 | sawvec = TRUE; | |
a0d0e21e | 3724 | LOP(OP_VEC,XTERM); |
79072805 LW |
3725 | |
3726 | case KEY_while: | |
3727 | yylval.ival = curcop->cop_line; | |
3728 | OPERATOR(WHILE); | |
3729 | ||
3730 | case KEY_warn: | |
a0d0e21e LW |
3731 | hints |= HINT_BLOCK_SCOPE; |
3732 | LOP(OP_WARN,XTERM); | |
79072805 LW |
3733 | |
3734 | case KEY_wait: | |
3735 | FUN0(OP_WAIT); | |
3736 | ||
3737 | case KEY_waitpid: | |
a0d0e21e | 3738 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
3739 | |
3740 | case KEY_wantarray: | |
3741 | FUN0(OP_WANTARRAY); | |
3742 | ||
3743 | case KEY_write: | |
85e6fe83 | 3744 | gv_fetchpv("\f",TRUE, SVt_PV); /* Make sure $^L is defined */ |
79072805 LW |
3745 | UNI(OP_ENTERWRITE); |
3746 | ||
3747 | case KEY_x: | |
3748 | if (expect == XOPERATOR) | |
3749 | Mop(OP_REPEAT); | |
3750 | check_uni(); | |
3751 | goto just_a_word; | |
3752 | ||
a0d0e21e LW |
3753 | case KEY_xor: |
3754 | yylval.ival = OP_XOR; | |
3755 | OPERATOR(OROP); | |
3756 | ||
79072805 LW |
3757 | case KEY_y: |
3758 | s = scan_trans(s); | |
3759 | TERM(sublex_start()); | |
3760 | } | |
3761 | } | |
3762 | } | |
3763 | ||
3764 | I32 | |
3765 | keyword(d, len) | |
3766 | register char *d; | |
3767 | I32 len; | |
3768 | { | |
3769 | switch (*d) { | |
3770 | case '_': | |
3771 | if (d[1] == '_') { | |
a0d0e21e | 3772 | if (strEQ(d,"__FILE__")) return -KEY___FILE__; |
68dc0745 | 3773 | if (strEQ(d,"__LINE__")) return -KEY___LINE__; |
3774 | if (strEQ(d,"__PACKAGE__")) return -KEY___PACKAGE__; | |
e50aee73 | 3775 | if (strEQ(d,"__DATA__")) return KEY___DATA__; |
79072805 LW |
3776 | if (strEQ(d,"__END__")) return KEY___END__; |
3777 | } | |
3778 | break; | |
8990e307 LW |
3779 | case 'A': |
3780 | if (strEQ(d,"AUTOLOAD")) return KEY_AUTOLOAD; | |
3781 | break; | |
79072805 | 3782 | case 'a': |
463ee0b2 LW |
3783 | switch (len) { |
3784 | case 3: | |
a0d0e21e LW |
3785 | if (strEQ(d,"and")) return -KEY_and; |
3786 | if (strEQ(d,"abs")) return -KEY_abs; | |
85e6fe83 | 3787 | break; |
463ee0b2 | 3788 | case 5: |
a0d0e21e LW |
3789 | if (strEQ(d,"alarm")) return -KEY_alarm; |
3790 | if (strEQ(d,"atan2")) return -KEY_atan2; | |
463ee0b2 LW |
3791 | break; |
3792 | case 6: | |
a0d0e21e | 3793 | if (strEQ(d,"accept")) return -KEY_accept; |
463ee0b2 LW |
3794 | break; |
3795 | } | |
79072805 LW |
3796 | break; |
3797 | case 'B': | |
3798 | if (strEQ(d,"BEGIN")) return KEY_BEGIN; | |
93a17b20 | 3799 | break; |
79072805 | 3800 | case 'b': |
a0d0e21e LW |
3801 | if (strEQ(d,"bless")) return -KEY_bless; |
3802 | if (strEQ(d,"bind")) return -KEY_bind; | |
3803 | if (strEQ(d,"binmode")) return -KEY_binmode; | |
3804 | break; | |
3805 | case 'C': | |
3806 | if (strEQ(d,"CORE")) return -KEY_CORE; | |
79072805 LW |
3807 | break; |
3808 | case 'c': | |
3809 | switch (len) { | |
3810 | case 3: | |
a0d0e21e LW |
3811 | if (strEQ(d,"cmp")) return -KEY_cmp; |
3812 | if (strEQ(d,"chr")) return -KEY_chr; | |
3813 | if (strEQ(d,"cos")) return -KEY_cos; | |
79072805 LW |
3814 | break; |
3815 | case 4: | |
3816 | if (strEQ(d,"chop")) return KEY_chop; | |
3817 | break; | |
3818 | case 5: | |
a0d0e21e LW |
3819 | if (strEQ(d,"close")) return -KEY_close; |
3820 | if (strEQ(d,"chdir")) return -KEY_chdir; | |
3821 | if (strEQ(d,"chomp")) return KEY_chomp; | |
3822 | if (strEQ(d,"chmod")) return -KEY_chmod; | |
3823 | if (strEQ(d,"chown")) return -KEY_chown; | |
3824 | if (strEQ(d,"crypt")) return -KEY_crypt; | |
79072805 LW |
3825 | break; |
3826 | case 6: | |
a0d0e21e LW |
3827 | if (strEQ(d,"chroot")) return -KEY_chroot; |
3828 | if (strEQ(d,"caller")) return -KEY_caller; | |
79072805 LW |
3829 | break; |
3830 | case 7: | |
a0d0e21e | 3831 | if (strEQ(d,"connect")) return -KEY_connect; |
79072805 LW |
3832 | break; |
3833 | case 8: | |
a0d0e21e LW |
3834 | if (strEQ(d,"closedir")) return -KEY_closedir; |
3835 | if (strEQ(d,"continue")) return -KEY_continue; | |
79072805 LW |
3836 | break; |
3837 | } | |
3838 | break; | |
ed6116ce LW |
3839 | case 'D': |
3840 | if (strEQ(d,"DESTROY")) return KEY_DESTROY; | |
3841 | break; | |
79072805 LW |
3842 | case 'd': |
3843 | switch (len) { | |
3844 | case 2: | |
3845 | if (strEQ(d,"do")) return KEY_do; | |
3846 | break; | |
3847 | case 3: | |
a0d0e21e | 3848 | if (strEQ(d,"die")) return -KEY_die; |
79072805 LW |
3849 | break; |
3850 | case 4: | |
a0d0e21e | 3851 | if (strEQ(d,"dump")) return -KEY_dump; |
79072805 LW |
3852 | break; |
3853 | case 6: | |
3854 | if (strEQ(d,"delete")) return KEY_delete; | |
3855 | break; | |
3856 | case 7: | |
3857 | if (strEQ(d,"defined")) return KEY_defined; | |
a0d0e21e | 3858 | if (strEQ(d,"dbmopen")) return -KEY_dbmopen; |
79072805 LW |
3859 | break; |
3860 | case 8: | |
a0d0e21e | 3861 | if (strEQ(d,"dbmclose")) return -KEY_dbmclose; |
79072805 LW |
3862 | break; |
3863 | } | |
3864 | break; | |
3865 | case 'E': | |
a0d0e21e | 3866 | if (strEQ(d,"EQ")) { deprecate(d); return -KEY_eq;} |
79072805 LW |
3867 | if (strEQ(d,"END")) return KEY_END; |
3868 | break; | |
3869 | case 'e': | |
3870 | switch (len) { | |
3871 | case 2: | |
a0d0e21e | 3872 | if (strEQ(d,"eq")) return -KEY_eq; |
79072805 LW |
3873 | break; |
3874 | case 3: | |
a0d0e21e LW |
3875 | if (strEQ(d,"eof")) return -KEY_eof; |
3876 | if (strEQ(d,"exp")) return -KEY_exp; | |
79072805 LW |
3877 | break; |
3878 | case 4: | |
3879 | if (strEQ(d,"else")) return KEY_else; | |
a0d0e21e | 3880 | if (strEQ(d,"exit")) return -KEY_exit; |
79072805 | 3881 | if (strEQ(d,"eval")) return KEY_eval; |
a0d0e21e | 3882 | if (strEQ(d,"exec")) return -KEY_exec; |
79072805 LW |
3883 | if (strEQ(d,"each")) return KEY_each; |
3884 | break; | |
3885 | case 5: | |
3886 | if (strEQ(d,"elsif")) return KEY_elsif; | |
3887 | break; | |
a0d0e21e LW |
3888 | case 6: |
3889 | if (strEQ(d,"exists")) return KEY_exists; | |
4633a7c4 | 3890 | if (strEQ(d,"elseif")) warn("elseif should be elsif"); |
a0d0e21e | 3891 | break; |
79072805 | 3892 | case 8: |
a0d0e21e LW |
3893 | if (strEQ(d,"endgrent")) return -KEY_endgrent; |
3894 | if (strEQ(d,"endpwent")) return -KEY_endpwent; | |
79072805 LW |
3895 | break; |
3896 | case 9: | |
a0d0e21e | 3897 | if (strEQ(d,"endnetent")) return -KEY_endnetent; |
79072805 LW |
3898 | break; |
3899 | case 10: | |
a0d0e21e LW |
3900 | if (strEQ(d,"endhostent")) return -KEY_endhostent; |
3901 | if (strEQ(d,"endservent")) return -KEY_endservent; | |
79072805 LW |
3902 | break; |
3903 | case 11: | |
a0d0e21e | 3904 | if (strEQ(d,"endprotoent")) return -KEY_endprotoent; |
79072805 | 3905 | break; |
a687059c | 3906 | } |
a687059c | 3907 | break; |
79072805 LW |
3908 | case 'f': |
3909 | switch (len) { | |
3910 | case 3: | |
3911 | if (strEQ(d,"for")) return KEY_for; | |
3912 | break; | |
3913 | case 4: | |
a0d0e21e | 3914 | if (strEQ(d,"fork")) return -KEY_fork; |
79072805 LW |
3915 | break; |
3916 | case 5: | |
a0d0e21e LW |
3917 | if (strEQ(d,"fcntl")) return -KEY_fcntl; |
3918 | if (strEQ(d,"flock")) return -KEY_flock; | |
79072805 LW |
3919 | break; |
3920 | case 6: | |
3921 | if (strEQ(d,"format")) return KEY_format; | |
a0d0e21e | 3922 | if (strEQ(d,"fileno")) return -KEY_fileno; |
79072805 LW |
3923 | break; |
3924 | case 7: | |
3925 | if (strEQ(d,"foreach")) return KEY_foreach; | |
3926 | break; | |
3927 | case 8: | |
a0d0e21e | 3928 | if (strEQ(d,"formline")) return -KEY_formline; |
79072805 | 3929 | break; |
378cc40b | 3930 | } |
a687059c | 3931 | break; |
79072805 LW |
3932 | case 'G': |
3933 | if (len == 2) { | |
a0d0e21e LW |
3934 | if (strEQ(d,"GT")) { deprecate(d); return -KEY_gt;} |
3935 | if (strEQ(d,"GE")) { deprecate(d); return -KEY_ge;} | |
9f68db38 | 3936 | } |
a687059c | 3937 | break; |
79072805 | 3938 | case 'g': |
a687059c LW |
3939 | if (strnEQ(d,"get",3)) { |
3940 | d += 3; | |
3941 | if (*d == 'p') { | |
79072805 LW |
3942 | switch (len) { |
3943 | case 7: | |
a0d0e21e LW |
3944 | if (strEQ(d,"ppid")) return -KEY_getppid; |
3945 | if (strEQ(d,"pgrp")) return -KEY_getpgrp; | |
79072805 LW |
3946 | break; |
3947 | case 8: | |
a0d0e21e LW |
3948 | if (strEQ(d,"pwent")) return -KEY_getpwent; |
3949 | if (strEQ(d,"pwnam")) return -KEY_getpwnam; | |
3950 | if (strEQ(d,"pwuid")) return -KEY_getpwuid; | |
79072805 LW |
3951 | break; |
3952 | case 11: | |
a0d0e21e LW |
3953 | if (strEQ(d,"peername")) return -KEY_getpeername; |
3954 | if (strEQ(d,"protoent")) return -KEY_getprotoent; | |
3955 | if (strEQ(d,"priority")) return -KEY_getpriority; | |
79072805 LW |
3956 | break; |
3957 | case 14: | |
a0d0e21e | 3958 | if (strEQ(d,"protobyname")) return -KEY_getprotobyname; |
79072805 LW |
3959 | break; |
3960 | case 16: | |
a0d0e21e | 3961 | if (strEQ(d,"protobynumber"))return -KEY_getprotobynumber; |
79072805 LW |
3962 | break; |
3963 | } | |
a687059c LW |
3964 | } |
3965 | else if (*d == 'h') { | |
a0d0e21e LW |
3966 | if (strEQ(d,"hostbyname")) return -KEY_gethostbyname; |
3967 | if (strEQ(d,"hostbyaddr")) return -KEY_gethostbyaddr; | |
3968 | if (strEQ(d,"hostent")) return -KEY_gethostent; | |
a687059c LW |
3969 | } |
3970 | else if (*d == 'n') { | |
a0d0e21e LW |
3971 | if (strEQ(d,"netbyname")) return -KEY_getnetbyname; |
3972 | if (strEQ(d,"netbyaddr")) return -KEY_getnetbyaddr; | |
3973 | if (strEQ(d,"netent")) return -KEY_getnetent; | |
a687059c LW |
3974 | } |
3975 | else if (*d == 's') { | |
a0d0e21e LW |
3976 | if (strEQ(d,"servbyname")) return -KEY_getservbyname; |
3977 | if (strEQ(d,"servbyport")) return -KEY_getservbyport; | |
3978 | if (strEQ(d,"servent")) return -KEY_getservent; | |
3979 | if (strEQ(d,"sockname")) return -KEY_getsockname; | |
3980 | if (strEQ(d,"sockopt")) return -KEY_getsockopt; | |
a687059c LW |
3981 | } |
3982 | else if (*d == 'g') { | |
a0d0e21e LW |
3983 | if (strEQ(d,"grent")) return -KEY_getgrent; |
3984 | if (strEQ(d,"grnam")) return -KEY_getgrnam; | |
3985 | if (strEQ(d,"grgid")) return -KEY_getgrgid; | |
a687059c LW |
3986 | } |
3987 | else if (*d == 'l') { | |
a0d0e21e | 3988 | if (strEQ(d,"login")) return -KEY_getlogin; |
a687059c | 3989 | } |
a0d0e21e | 3990 | else if (strEQ(d,"c")) return -KEY_getc; |
79072805 | 3991 | break; |
a687059c | 3992 | } |
79072805 LW |
3993 | switch (len) { |
3994 | case 2: | |
a0d0e21e LW |
3995 | if (strEQ(d,"gt")) return -KEY_gt; |
3996 | if (strEQ(d,"ge")) return -KEY_ge; | |
79072805 LW |
3997 | break; |
3998 | case 4: | |
3999 | if (strEQ(d,"grep")) return KEY_grep; | |
4000 | if (strEQ(d,"goto")) return KEY_goto; | |
fb73857a | 4001 | if (strEQ(d,"glob")) return KEY_glob; |
79072805 LW |
4002 | break; |
4003 | case 6: | |
a0d0e21e | 4004 | if (strEQ(d,"gmtime")) return -KEY_gmtime; |
79072805 | 4005 | break; |
378cc40b | 4006 | } |
a687059c | 4007 | break; |
79072805 | 4008 | case 'h': |
a0d0e21e | 4009 | if (strEQ(d,"hex")) return -KEY_hex; |
a687059c | 4010 | break; |
7d07dbc2 MB |
4011 | case 'I': |
4012 | if (strEQ(d,"INIT")) return KEY_INIT; | |
4013 | break; | |
79072805 LW |
4014 | case 'i': |
4015 | switch (len) { | |
4016 | case 2: | |
4017 | if (strEQ(d,"if")) return KEY_if; | |
4018 | break; | |
4019 | case 3: | |
a0d0e21e | 4020 | if (strEQ(d,"int")) return -KEY_int; |
79072805 LW |
4021 | break; |
4022 | case 5: | |
a0d0e21e LW |
4023 | if (strEQ(d,"index")) return -KEY_index; |
4024 | if (strEQ(d,"ioctl")) return -KEY_ioctl; | |
79072805 LW |
4025 | break; |
4026 | } | |
a687059c | 4027 | break; |
79072805 | 4028 | case 'j': |
a0d0e21e | 4029 | if (strEQ(d,"join")) return -KEY_join; |
a687059c | 4030 | break; |
79072805 LW |
4031 | case 'k': |
4032 | if (len == 4) { | |
4033 | if (strEQ(d,"keys")) return KEY_keys; | |
a0d0e21e | 4034 | if (strEQ(d,"kill")) return -KEY_kill; |
663a0e37 | 4035 | } |
79072805 LW |
4036 | break; |
4037 | case 'L': | |
4038 | if (len == 2) { | |
a0d0e21e LW |
4039 | if (strEQ(d,"LT")) { deprecate(d); return -KEY_lt;} |
4040 | if (strEQ(d,"LE")) { deprecate(d); return -KEY_le;} | |
378cc40b | 4041 | } |
79072805 LW |
4042 | break; |
4043 | case 'l': | |
4044 | switch (len) { | |
4045 | case 2: | |
a0d0e21e LW |
4046 | if (strEQ(d,"lt")) return -KEY_lt; |
4047 | if (strEQ(d,"le")) return -KEY_le; | |
4048 | if (strEQ(d,"lc")) return -KEY_lc; | |
79072805 LW |
4049 | break; |
4050 | case 3: | |
a0d0e21e | 4051 | if (strEQ(d,"log")) return -KEY_log; |
79072805 LW |
4052 | break; |
4053 | case 4: | |
4054 | if (strEQ(d,"last")) return KEY_last; | |
a0d0e21e | 4055 | if (strEQ(d,"link")) return -KEY_link; |
c0329465 | 4056 | if (strEQ(d,"lock")) return -KEY_lock; |
395c3793 | 4057 | break; |
79072805 LW |
4058 | case 5: |
4059 | if (strEQ(d,"local")) return KEY_local; | |
a0d0e21e | 4060 | if (strEQ(d,"lstat")) return -KEY_lstat; |
79072805 LW |
4061 | break; |
4062 | case 6: | |
a0d0e21e LW |
4063 | if (strEQ(d,"length")) return -KEY_length; |
4064 | if (strEQ(d,"listen")) return -KEY_listen; | |
79072805 LW |
4065 | break; |
4066 | case 7: | |
a0d0e21e | 4067 | if (strEQ(d,"lcfirst")) return -KEY_lcfirst; |
79072805 LW |
4068 | break; |
4069 | case 9: | |
a0d0e21e | 4070 | if (strEQ(d,"localtime")) return -KEY_localtime; |
395c3793 LW |
4071 | break; |
4072 | } | |
a687059c | 4073 | break; |
79072805 LW |
4074 | case 'm': |
4075 | switch (len) { | |
4076 | case 1: return KEY_m; | |
93a17b20 LW |
4077 | case 2: |
4078 | if (strEQ(d,"my")) return KEY_my; | |
4079 | break; | |
a0d0e21e LW |
4080 | case 3: |
4081 | if (strEQ(d,"map")) return KEY_map; | |
4082 | break; | |
79072805 | 4083 | case 5: |
a0d0e21e | 4084 | if (strEQ(d,"mkdir")) return -KEY_mkdir; |
79072805 LW |
4085 | break; |
4086 | case 6: | |
a0d0e21e LW |
4087 | if (strEQ(d,"msgctl")) return -KEY_msgctl; |
4088 | if (strEQ(d,"msgget")) return -KEY_msgget; | |
4089 | if (strEQ(d,"msgrcv")) return -KEY_msgrcv; | |
4090 | if (strEQ(d,"msgsnd")) return -KEY_msgsnd; | |
79072805 LW |
4091 | break; |
4092 | } | |
a687059c | 4093 | break; |
79072805 | 4094 | case 'N': |
a0d0e21e | 4095 | if (strEQ(d,"NE")) { deprecate(d); return -KEY_ne;} |
a687059c | 4096 | break; |
79072805 LW |
4097 | case 'n': |
4098 | if (strEQ(d,"next")) return KEY_next; | |
a0d0e21e LW |
4099 | if (strEQ(d,"ne")) return -KEY_ne; |
4100 | if (strEQ(d,"not")) return -KEY_not; | |
4101 | if (strEQ(d,"no")) return KEY_no; | |
a687059c | 4102 | break; |
79072805 LW |
4103 | case 'o': |
4104 | switch (len) { | |
463ee0b2 | 4105 | case 2: |
a0d0e21e | 4106 | if (strEQ(d,"or")) return -KEY_or; |
463ee0b2 | 4107 | break; |
79072805 | 4108 | case 3: |
a0d0e21e LW |
4109 | if (strEQ(d,"ord")) return -KEY_ord; |
4110 | if (strEQ(d,"oct")) return -KEY_oct; | |
79072805 LW |
4111 | break; |
4112 | case 4: | |
a0d0e21e | 4113 | if (strEQ(d,"open")) return -KEY_open; |
79072805 LW |
4114 | break; |
4115 | case 7: | |
a0d0e21e | 4116 | if (strEQ(d,"opendir")) return -KEY_opendir; |
79072805 | 4117 | break; |
fe14fcc3 | 4118 | } |
a687059c | 4119 | break; |
79072805 LW |
4120 | case 'p': |
4121 | switch (len) { | |
4122 | case 3: | |
4123 | if (strEQ(d,"pop")) return KEY_pop; | |
a0d0e21e | 4124 | if (strEQ(d,"pos")) return KEY_pos; |
79072805 LW |
4125 | break; |
4126 | case 4: | |
4127 | if (strEQ(d,"push")) return KEY_push; | |
a0d0e21e LW |
4128 | if (strEQ(d,"pack")) return -KEY_pack; |
4129 | if (strEQ(d,"pipe")) return -KEY_pipe; | |
79072805 LW |
4130 | break; |
4131 | case 5: | |
4132 | if (strEQ(d,"print")) return KEY_print; | |
4133 | break; | |
4134 | case 6: | |
4135 | if (strEQ(d,"printf")) return KEY_printf; | |
4136 | break; | |
4137 | case 7: | |
4138 | if (strEQ(d,"package")) return KEY_package; | |
4139 | break; | |
c07a80fd | 4140 | case 9: |
4141 | if (strEQ(d,"prototype")) return KEY_prototype; | |
663a0e37 | 4142 | } |
79072805 LW |
4143 | break; |
4144 | case 'q': | |
4145 | if (len <= 2) { | |
4146 | if (strEQ(d,"q")) return KEY_q; | |
4147 | if (strEQ(d,"qq")) return KEY_qq; | |
8990e307 | 4148 | if (strEQ(d,"qw")) return KEY_qw; |
79072805 | 4149 | if (strEQ(d,"qx")) return KEY_qx; |
663a0e37 | 4150 | } |
a0d0e21e | 4151 | else if (strEQ(d,"quotemeta")) return -KEY_quotemeta; |
79072805 LW |
4152 | break; |
4153 | case 'r': | |
4154 | switch (len) { | |
4155 | case 3: | |
a0d0e21e | 4156 | if (strEQ(d,"ref")) return -KEY_ref; |
79072805 LW |
4157 | break; |
4158 | case 4: | |
a0d0e21e LW |
4159 | if (strEQ(d,"read")) return -KEY_read; |
4160 | if (strEQ(d,"rand")) return -KEY_rand; | |
4161 | if (strEQ(d,"recv")) return -KEY_recv; | |
79072805 LW |
4162 | if (strEQ(d,"redo")) return KEY_redo; |
4163 | break; | |
4164 | case 5: | |
a0d0e21e LW |
4165 | if (strEQ(d,"rmdir")) return -KEY_rmdir; |
4166 | if (strEQ(d,"reset")) return -KEY_reset; | |
79072805 LW |
4167 | break; |
4168 | case 6: | |
4169 | if (strEQ(d,"return")) return KEY_return; | |
a0d0e21e LW |
4170 | if (strEQ(d,"rename")) return -KEY_rename; |
4171 | if (strEQ(d,"rindex")) return -KEY_rindex; | |
79072805 LW |
4172 | break; |
4173 | case 7: | |
a0d0e21e LW |
4174 | if (strEQ(d,"require")) return -KEY_require; |
4175 | if (strEQ(d,"reverse")) return -KEY_reverse; | |
4176 | if (strEQ(d,"readdir")) return -KEY_readdir; | |
79072805 LW |
4177 | break; |
4178 | case 8: | |
a0d0e21e LW |
4179 | if (strEQ(d,"readlink")) return -KEY_readlink; |
4180 | if (strEQ(d,"readline")) return -KEY_readline; | |
4181 | if (strEQ(d,"readpipe")) return -KEY_readpipe; | |
79072805 LW |
4182 | break; |
4183 | case 9: | |
a0d0e21e | 4184 | if (strEQ(d,"rewinddir")) return -KEY_rewinddir; |
79072805 | 4185 | break; |
a687059c | 4186 | } |
79072805 LW |
4187 | break; |
4188 | case 's': | |
a687059c | 4189 | switch (d[1]) { |
79072805 | 4190 | case 0: return KEY_s; |
a687059c | 4191 | case 'c': |
79072805 | 4192 | if (strEQ(d,"scalar")) return KEY_scalar; |
a687059c LW |
4193 | break; |
4194 | case 'e': | |
79072805 LW |
4195 | switch (len) { |
4196 | case 4: | |
a0d0e21e LW |
4197 | if (strEQ(d,"seek")) return -KEY_seek; |
4198 | if (strEQ(d,"send")) return -KEY_send; | |
79072805 LW |
4199 | break; |
4200 | case 5: | |
a0d0e21e | 4201 | if (strEQ(d,"semop")) return -KEY_semop; |
79072805 LW |
4202 | break; |
4203 | case 6: | |
a0d0e21e LW |
4204 | if (strEQ(d,"select")) return -KEY_select; |
4205 | if (strEQ(d,"semctl")) return -KEY_semctl; | |
4206 | if (strEQ(d,"semget")) return -KEY_semget; | |
79072805 LW |
4207 | break; |
4208 | case 7: | |
a0d0e21e LW |
4209 | if (strEQ(d,"setpgrp")) return -KEY_setpgrp; |
4210 | if (strEQ(d,"seekdir")) return -KEY_seekdir; | |
79072805 LW |
4211 | break; |
4212 | case 8: | |
a0d0e21e LW |
4213 | if (strEQ(d,"setpwent")) return -KEY_setpwent; |
4214 | if (strEQ(d,"setgrent")) return -KEY_setgrent; | |
79072805 LW |
4215 | break; |
4216 | case 9: | |
a0d0e21e | 4217 | if (strEQ(d,"setnetent")) return -KEY_setnetent; |
79072805 LW |
4218 | break; |
4219 | case 10: | |
a0d0e21e LW |
4220 | if (strEQ(d,"setsockopt")) return -KEY_setsockopt; |
4221 | if (strEQ(d,"sethostent")) return -KEY_sethostent; | |
4222 | if (strEQ(d,"setservent")) return -KEY_setservent; | |
79072805 LW |
4223 | break; |
4224 | case 11: | |
a0d0e21e LW |
4225 | if (strEQ(d,"setpriority")) return -KEY_setpriority; |
4226 | if (strEQ(d,"setprotoent")) return -KEY_setprotoent; | |
79072805 LW |
4227 | break; |
4228 | } | |
a687059c LW |
4229 | break; |
4230 | case 'h': | |
79072805 LW |
4231 | switch (len) { |
4232 | case 5: | |
4233 | if (strEQ(d,"shift")) return KEY_shift; | |
4234 | break; | |
4235 | case 6: | |
a0d0e21e LW |
4236 | if (strEQ(d,"shmctl")) return -KEY_shmctl; |
4237 | if (strEQ(d,"shmget")) return -KEY_shmget; | |
79072805 LW |
4238 | break; |
4239 | case 7: | |
a0d0e21e | 4240 | if (strEQ(d,"shmread")) return -KEY_shmread; |
79072805 LW |
4241 | break; |
4242 | case 8: | |
a0d0e21e LW |
4243 | if (strEQ(d,"shmwrite")) return -KEY_shmwrite; |
4244 | if (strEQ(d,"shutdown")) return -KEY_shutdown; | |
79072805 LW |
4245 | break; |
4246 | } | |
a687059c LW |
4247 | break; |
4248 | case 'i': | |
a0d0e21e | 4249 | if (strEQ(d,"sin")) return -KEY_sin; |
a687059c LW |
4250 | break; |
4251 | case 'l': | |
a0d0e21e | 4252 | if (strEQ(d,"sleep")) return -KEY_sleep; |
a687059c LW |
4253 | break; |
4254 | case 'o': | |
79072805 | 4255 | if (strEQ(d,"sort")) return KEY_sort; |
a0d0e21e LW |
4256 | if (strEQ(d,"socket")) return -KEY_socket; |
4257 | if (strEQ(d,"socketpair")) return -KEY_socketpair; | |
a687059c LW |
4258 | break; |
4259 | case 'p': | |
79072805 | 4260 | if (strEQ(d,"split")) return KEY_split; |
a0d0e21e | 4261 | if (strEQ(d,"sprintf")) return -KEY_sprintf; |
79072805 | 4262 | if (strEQ(d,"splice")) return KEY_splice; |
a687059c LW |
4263 | break; |
4264 | case 'q': | |
a0d0e21e | 4265 | if (strEQ(d,"sqrt")) return -KEY_sqrt; |
a687059c LW |
4266 | break; |
4267 | case 'r': | |
a0d0e21e | 4268 | if (strEQ(d,"srand")) return -KEY_srand; |
a687059c LW |
4269 | break; |
4270 | case 't': | |
a0d0e21e | 4271 | if (strEQ(d,"stat")) return -KEY_stat; |
79072805 | 4272 | if (strEQ(d,"study")) return KEY_study; |
a687059c LW |
4273 | break; |
4274 | case 'u': | |
a0d0e21e | 4275 | if (strEQ(d,"substr")) return -KEY_substr; |
79072805 | 4276 | if (strEQ(d,"sub")) return KEY_sub; |
a687059c LW |
4277 | break; |
4278 | case 'y': | |
79072805 LW |
4279 | switch (len) { |
4280 | case 6: | |
a0d0e21e | 4281 | if (strEQ(d,"system")) return -KEY_system; |
79072805 LW |
4282 | break; |
4283 | case 7: | |
a0d0e21e LW |
4284 | if (strEQ(d,"symlink")) return -KEY_symlink; |
4285 | if (strEQ(d,"syscall")) return -KEY_syscall; | |
137443ea | 4286 | if (strEQ(d,"sysopen")) return -KEY_sysopen; |
4287 | if (strEQ(d,"sysread")) return -KEY_sysread; | |
4288 | if (strEQ(d,"sysseek")) return -KEY_sysseek; | |
79072805 LW |
4289 | break; |
4290 | case 8: | |
a0d0e21e | 4291 | if (strEQ(d,"syswrite")) return -KEY_syswrite; |
79072805 | 4292 | break; |
a687059c | 4293 | } |
a687059c LW |
4294 | break; |
4295 | } | |
4296 | break; | |
79072805 LW |
4297 | case 't': |
4298 | switch (len) { | |
4299 | case 2: | |
4300 | if (strEQ(d,"tr")) return KEY_tr; | |
4301 | break; | |
463ee0b2 LW |
4302 | case 3: |
4303 | if (strEQ(d,"tie")) return KEY_tie; | |
4304 | break; | |
79072805 | 4305 | case 4: |
a0d0e21e | 4306 | if (strEQ(d,"tell")) return -KEY_tell; |
c07a80fd | 4307 | if (strEQ(d,"tied")) return KEY_tied; |
a0d0e21e | 4308 | if (strEQ(d,"time")) return -KEY_time; |
79072805 LW |
4309 | break; |
4310 | case 5: | |
a0d0e21e | 4311 | if (strEQ(d,"times")) return -KEY_times; |
79072805 LW |
4312 | break; |
4313 | case 7: | |
a0d0e21e | 4314 | if (strEQ(d,"telldir")) return -KEY_telldir; |
79072805 LW |
4315 | break; |
4316 | case 8: | |
a0d0e21e | 4317 | if (strEQ(d,"truncate")) return -KEY_truncate; |
79072805 | 4318 | break; |
378cc40b | 4319 | } |
a687059c | 4320 | break; |
79072805 LW |
4321 | case 'u': |
4322 | switch (len) { | |
4323 | case 2: | |
a0d0e21e LW |
4324 | if (strEQ(d,"uc")) return -KEY_uc; |
4325 | break; | |
4326 | case 3: | |
4327 | if (strEQ(d,"use")) return KEY_use; | |
79072805 LW |
4328 | break; |
4329 | case 5: | |
4330 | if (strEQ(d,"undef")) return KEY_undef; | |
4331 | if (strEQ(d,"until")) return KEY_until; | |
463ee0b2 | 4332 | if (strEQ(d,"untie")) return KEY_untie; |
a0d0e21e LW |
4333 | if (strEQ(d,"utime")) return -KEY_utime; |
4334 | if (strEQ(d,"umask")) return -KEY_umask; | |
79072805 LW |
4335 | break; |
4336 | case 6: | |
4337 | if (strEQ(d,"unless")) return KEY_unless; | |
a0d0e21e LW |
4338 | if (strEQ(d,"unpack")) return -KEY_unpack; |
4339 | if (strEQ(d,"unlink")) return -KEY_unlink; | |
79072805 LW |
4340 | break; |
4341 | case 7: | |
4342 | if (strEQ(d,"unshift")) return KEY_unshift; | |
a0d0e21e | 4343 | if (strEQ(d,"ucfirst")) return -KEY_ucfirst; |
79072805 | 4344 | break; |
a687059c LW |
4345 | } |
4346 | break; | |
79072805 | 4347 | case 'v': |
a0d0e21e LW |
4348 | if (strEQ(d,"values")) return -KEY_values; |
4349 | if (strEQ(d,"vec")) return -KEY_vec; | |
a687059c | 4350 | break; |
79072805 LW |
4351 | case 'w': |
4352 | switch (len) { | |
4353 | case 4: | |
a0d0e21e LW |
4354 | if (strEQ(d,"warn")) return -KEY_warn; |
4355 | if (strEQ(d,"wait")) return -KEY_wait; | |
79072805 LW |
4356 | break; |
4357 | case 5: | |
4358 | if (strEQ(d,"while")) return KEY_while; | |
a0d0e21e | 4359 | if (strEQ(d,"write")) return -KEY_write; |
79072805 LW |
4360 | break; |
4361 | case 7: | |
a0d0e21e | 4362 | if (strEQ(d,"waitpid")) return -KEY_waitpid; |
79072805 LW |
4363 | break; |
4364 | case 9: | |
a0d0e21e | 4365 | if (strEQ(d,"wantarray")) return -KEY_wantarray; |
79072805 | 4366 | break; |
2f3197b3 | 4367 | } |
a687059c | 4368 | break; |
79072805 | 4369 | case 'x': |
a0d0e21e LW |
4370 | if (len == 1) return -KEY_x; |
4371 | if (strEQ(d,"xor")) return -KEY_xor; | |
a687059c | 4372 | break; |
79072805 LW |
4373 | case 'y': |
4374 | if (len == 1) return KEY_y; | |
4375 | break; | |
4376 | case 'z': | |
a687059c LW |
4377 | break; |
4378 | } | |
79072805 | 4379 | return 0; |
a687059c LW |
4380 | } |
4381 | ||
8990e307 | 4382 | static void |
2f3197b3 | 4383 | checkcomma(s,name,what) |
a687059c | 4384 | register char *s; |
2f3197b3 | 4385 | char *name; |
a687059c LW |
4386 | char *what; |
4387 | { | |
2f3197b3 LW |
4388 | char *w; |
4389 | ||
463ee0b2 | 4390 | if (dowarn && *s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
a0d0e21e LW |
4391 | int level = 1; |
4392 | for (w = s+2; *w && level; w++) { | |
4393 | if (*w == '(') | |
4394 | ++level; | |
4395 | else if (*w == ')') | |
4396 | --level; | |
4397 | } | |
4398 | if (*w) | |
4399 | for (; *w && isSPACE(*w); w++) ; | |
d1f3fb15 | 4400 | if (!*w || !strchr(";|})]oaiuw!=", *w)) /* an advisory hack only... */ |
2f3197b3 LW |
4401 | warn("%s (...) interpreted as function",name); |
4402 | } | |
4403 | while (s < bufend && isSPACE(*s)) | |
4404 | s++; | |
a687059c LW |
4405 | if (*s == '(') |
4406 | s++; | |
de3bb511 | 4407 | while (s < bufend && isSPACE(*s)) |
a687059c | 4408 | s++; |
79072805 | 4409 | if (isIDFIRST(*s)) { |
2f3197b3 | 4410 | w = s++; |
de3bb511 | 4411 | while (isALNUM(*s)) |
a687059c | 4412 | s++; |
de3bb511 | 4413 | while (s < bufend && isSPACE(*s)) |
a687059c | 4414 | s++; |
e929a76b | 4415 | if (*s == ',') { |
463ee0b2 | 4416 | int kw; |
e929a76b | 4417 | *s = '\0'; |
4633a7c4 | 4418 | kw = keyword(w, s - w) || perl_get_cv(w, FALSE) != 0; |
e929a76b | 4419 | *s = ','; |
463ee0b2 | 4420 | if (kw) |
e929a76b | 4421 | return; |
463ee0b2 LW |
4422 | croak("No comma allowed after %s", what); |
4423 | } | |
4424 | } | |
4425 | } | |
4426 | ||
8990e307 | 4427 | static char * |
8903cb82 | 4428 | scan_word(s, dest, destlen, allow_package, slp) |
463ee0b2 LW |
4429 | register char *s; |
4430 | char *dest; | |
8903cb82 | 4431 | STRLEN destlen; |
463ee0b2 LW |
4432 | int allow_package; |
4433 | STRLEN *slp; | |
4434 | { | |
4435 | register char *d = dest; | |
8903cb82 | 4436 | register char *e = d + destlen - 3; /* two-character token, ending NUL */ |
463ee0b2 | 4437 | for (;;) { |
8903cb82 | 4438 | if (d >= e) |
fc36a67e | 4439 | croak(ident_too_long); |
463ee0b2 LW |
4440 | if (isALNUM(*s)) |
4441 | *d++ = *s++; | |
4442 | else if (*s == '\'' && allow_package && isIDFIRST(s[1])) { | |
4443 | *d++ = ':'; | |
4444 | *d++ = ':'; | |
4445 | s++; | |
4446 | } | |
4447 | else if (*s == ':' && s[1] == ':' && allow_package && isIDFIRST(s[2])) { | |
4448 | *d++ = *s++; | |
4449 | *d++ = *s++; | |
4450 | } | |
4451 | else { | |
4452 | *d = '\0'; | |
4453 | *slp = d - dest; | |
4454 | return s; | |
e929a76b | 4455 | } |
378cc40b LW |
4456 | } |
4457 | } | |
4458 | ||
8990e307 | 4459 | static char * |
8903cb82 | 4460 | scan_ident(s, send, dest, destlen, ck_uni) |
378cc40b | 4461 | register char *s; |
a687059c | 4462 | register char *send; |
378cc40b | 4463 | char *dest; |
8903cb82 | 4464 | STRLEN destlen; |
79072805 | 4465 | I32 ck_uni; |
378cc40b LW |
4466 | { |
4467 | register char *d; | |
8903cb82 | 4468 | register char *e; |
79072805 | 4469 | char *bracket = 0; |
748a9306 | 4470 | char funny = *s++; |
378cc40b | 4471 | |
79072805 LW |
4472 | if (lex_brackets == 0) |
4473 | lex_fakebrack = 0; | |
a0d0e21e LW |
4474 | if (isSPACE(*s)) |
4475 | s = skipspace(s); | |
378cc40b | 4476 | d = dest; |
8903cb82 | 4477 | e = d + destlen - 3; /* two-character token, ending NUL */ |
de3bb511 | 4478 | if (isDIGIT(*s)) { |
8903cb82 | 4479 | while (isDIGIT(*s)) { |
4480 | if (d >= e) | |
fc36a67e | 4481 | croak(ident_too_long); |
378cc40b | 4482 | *d++ = *s++; |
8903cb82 | 4483 | } |
378cc40b LW |
4484 | } |
4485 | else { | |
463ee0b2 | 4486 | for (;;) { |
8903cb82 | 4487 | if (d >= e) |
fc36a67e | 4488 | croak(ident_too_long); |
463ee0b2 LW |
4489 | if (isALNUM(*s)) |
4490 | *d++ = *s++; | |
4491 | else if (*s == '\'' && isIDFIRST(s[1])) { | |
4492 | *d++ = ':'; | |
4493 | *d++ = ':'; | |
4494 | s++; | |
4495 | } | |
a0d0e21e | 4496 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
4497 | *d++ = *s++; |
4498 | *d++ = *s++; | |
4499 | } | |
4500 | else | |
4501 | break; | |
4502 | } | |
378cc40b LW |
4503 | } |
4504 | *d = '\0'; | |
4505 | d = dest; | |
79072805 LW |
4506 | if (*d) { |
4507 | if (lex_state != LEX_NORMAL) | |
4508 | lex_state = LEX_INTERPENDMAYBE; | |
4509 | return s; | |
378cc40b | 4510 | } |
748a9306 | 4511 | if (*s == '$' && s[1] && |
ff0cee69 | 4512 | (isALNUM(s[1]) || strchr("${", s[1]) || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 4513 | { |
4514 | if (isDIGIT(s[1]) && lex_state == LEX_INTERPNORMAL) | |
4515 | deprecate("\"$$<digit>\" to mean \"${$}<digit>\""); | |
4516 | else | |
4517 | return s; | |
4518 | } | |
79072805 LW |
4519 | if (*s == '{') { |
4520 | bracket = s; | |
4521 | s++; | |
4522 | } | |
4523 | else if (ck_uni) | |
4524 | check_uni(); | |
93a17b20 | 4525 | if (s < send) |
79072805 LW |
4526 | *d = *s++; |
4527 | d[1] = '\0'; | |
748a9306 | 4528 | if (*d == '^' && *s && (isUPPER(*s) || strchr("[\\]^_?", *s))) { |
bbce6d69 | 4529 | *d = toCTRL(*s); |
4530 | s++; | |
de3bb511 | 4531 | } |
79072805 | 4532 | if (bracket) { |
748a9306 | 4533 | if (isSPACE(s[-1])) { |
fa83b5b6 | 4534 | while (s < send) { |
4535 | char ch = *s++; | |
4536 | if (ch != ' ' && ch != '\t') { | |
4537 | *d = ch; | |
4538 | break; | |
4539 | } | |
4540 | } | |
748a9306 | 4541 | } |
ff68c719 | 4542 | if (isIDFIRST(*d)) { |
79072805 | 4543 | d++; |
748a9306 | 4544 | while (isALNUM(*s) || *s == ':') |
79072805 LW |
4545 | *d++ = *s++; |
4546 | *d = '\0'; | |
748a9306 | 4547 | while (s < send && (*s == ' ' || *s == '\t')) s++; |
ff68c719 | 4548 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
748a9306 LW |
4549 | if (dowarn && keyword(dest, d - dest)) { |
4550 | char *brack = *s == '[' ? "[...]" : "{...}"; | |
4551 | warn("Ambiguous use of %c{%s%s} resolved to %c%s%s", | |
4552 | funny, dest, brack, funny, dest, brack); | |
4553 | } | |
4554 | lex_fakebrack = lex_brackets+1; | |
79072805 | 4555 | bracket++; |
a0d0e21e | 4556 | lex_brackstack[lex_brackets++] = XOPERATOR; |
79072805 LW |
4557 | return s; |
4558 | } | |
4559 | } | |
4560 | if (*s == '}') { | |
4561 | s++; | |
4562 | if (lex_state == LEX_INTERPNORMAL && !lex_brackets) | |
4563 | lex_state = LEX_INTERPEND; | |
748a9306 LW |
4564 | if (funny == '#') |
4565 | funny = '@'; | |
84902520 | 4566 | if (dowarn && lex_state == LEX_NORMAL && |
748a9306 LW |
4567 | (keyword(dest, d - dest) || perl_get_cv(dest, FALSE))) |
4568 | warn("Ambiguous use of %c{%s} resolved to %c%s", | |
4569 | funny, dest, funny, dest); | |
79072805 LW |
4570 | } |
4571 | else { | |
4572 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 4573 | *dest = '\0'; |
79072805 LW |
4574 | } |
4575 | } | |
4576 | else if (lex_state == LEX_INTERPNORMAL && !lex_brackets && !intuit_more(s)) | |
4577 | lex_state = LEX_INTERPEND; | |
378cc40b LW |
4578 | return s; |
4579 | } | |
4580 | ||
a0d0e21e LW |
4581 | void pmflag(pmfl,ch) |
4582 | U16* pmfl; | |
4583 | int ch; | |
4584 | { | |
bbce6d69 | 4585 | if (ch == 'i') |
a0d0e21e | 4586 | *pmfl |= PMf_FOLD; |
a0d0e21e LW |
4587 | else if (ch == 'g') |
4588 | *pmfl |= PMf_GLOBAL; | |
c90c0ff4 | 4589 | else if (ch == 'c') |
4590 | *pmfl |= PMf_CONTINUE; | |
a0d0e21e LW |
4591 | else if (ch == 'o') |
4592 | *pmfl |= PMf_KEEP; | |
4593 | else if (ch == 'm') | |
4594 | *pmfl |= PMf_MULTILINE; | |
4595 | else if (ch == 's') | |
4596 | *pmfl |= PMf_SINGLELINE; | |
4597 | else if (ch == 'x') | |
4598 | *pmfl |= PMf_EXTENDED; | |
4599 | } | |
378cc40b | 4600 | |
8990e307 | 4601 | static char * |
79072805 LW |
4602 | scan_pat(start) |
4603 | char *start; | |
378cc40b | 4604 | { |
79072805 LW |
4605 | PMOP *pm; |
4606 | char *s; | |
378cc40b | 4607 | |
79072805 LW |
4608 | s = scan_str(start); |
4609 | if (!s) { | |
4610 | if (lex_stuff) | |
8990e307 | 4611 | SvREFCNT_dec(lex_stuff); |
79072805 | 4612 | lex_stuff = Nullsv; |
463ee0b2 | 4613 | croak("Search pattern not terminated"); |
378cc40b | 4614 | } |
bbce6d69 | 4615 | |
79072805 | 4616 | pm = (PMOP*)newPMOP(OP_MATCH, 0); |
a0d0e21e | 4617 | if (multi_open == '?') |
79072805 | 4618 | pm->op_pmflags |= PMf_ONCE; |
c90c0ff4 | 4619 | while (*s && strchr("iogcmsx", *s)) |
a0d0e21e | 4620 | pmflag(&pm->op_pmflags,*s++); |
4633a7c4 | 4621 | pm->op_pmpermflags = pm->op_pmflags; |
bbce6d69 | 4622 | |
79072805 LW |
4623 | lex_op = (OP*)pm; |
4624 | yylval.ival = OP_MATCH; | |
378cc40b LW |
4625 | return s; |
4626 | } | |
4627 | ||
8990e307 | 4628 | static char * |
79072805 | 4629 | scan_subst(start) |
2f3197b3 | 4630 | char *start; |
79072805 | 4631 | { |
a0d0e21e | 4632 | register char *s; |
79072805 | 4633 | register PMOP *pm; |
4fdae800 | 4634 | I32 first_start; |
79072805 LW |
4635 | I32 es = 0; |
4636 | ||
79072805 LW |
4637 | yylval.ival = OP_NULL; |
4638 | ||
a0d0e21e | 4639 | s = scan_str(start); |
79072805 LW |
4640 | |
4641 | if (!s) { | |
4642 | if (lex_stuff) | |
8990e307 | 4643 | SvREFCNT_dec(lex_stuff); |
79072805 | 4644 | lex_stuff = Nullsv; |
463ee0b2 | 4645 | croak("Substitution pattern not terminated"); |
a687059c | 4646 | } |
79072805 | 4647 | |
a0d0e21e | 4648 | if (s[-1] == multi_open) |
79072805 LW |
4649 | s--; |
4650 | ||
4fdae800 | 4651 | first_start = multi_start; |
79072805 LW |
4652 | s = scan_str(s); |
4653 | if (!s) { | |
4654 | if (lex_stuff) | |
8990e307 | 4655 | SvREFCNT_dec(lex_stuff); |
79072805 LW |
4656 | lex_stuff = Nullsv; |
4657 | if (lex_repl) | |
8990e307 | 4658 | SvREFCNT_dec(lex_repl); |
79072805 | 4659 | lex_repl = Nullsv; |
463ee0b2 | 4660 | croak("Substitution replacement not terminated"); |
a687059c | 4661 | } |
4fdae800 | 4662 | multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 4663 | |
79072805 | 4664 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
c90c0ff4 | 4665 | while (*s && strchr("iogcmsex", *s)) { |
a687059c LW |
4666 | if (*s == 'e') { |
4667 | s++; | |
2f3197b3 | 4668 | es++; |
a687059c | 4669 | } |
a0d0e21e LW |
4670 | else |
4671 | pmflag(&pm->op_pmflags,*s++); | |
378cc40b | 4672 | } |
79072805 LW |
4673 | |
4674 | if (es) { | |
4675 | SV *repl; | |
4676 | pm->op_pmflags |= PMf_EVAL; | |
463ee0b2 LW |
4677 | repl = newSVpv("",0); |
4678 | while (es-- > 0) | |
a0d0e21e | 4679 | sv_catpv(repl, es ? "eval " : "do "); |
79072805 LW |
4680 | sv_catpvn(repl, "{ ", 2); |
4681 | sv_catsv(repl, lex_repl); | |
4682 | sv_catpvn(repl, " };", 2); | |
4683 | SvCOMPILED_on(repl); | |
8990e307 | 4684 | SvREFCNT_dec(lex_repl); |
79072805 | 4685 | lex_repl = repl; |
378cc40b | 4686 | } |
79072805 | 4687 | |
4633a7c4 | 4688 | pm->op_pmpermflags = pm->op_pmflags; |
79072805 LW |
4689 | lex_op = (OP*)pm; |
4690 | yylval.ival = OP_SUBST; | |
378cc40b LW |
4691 | return s; |
4692 | } | |
4693 | ||
1462b684 | 4694 | void |
79072805 LW |
4695 | hoistmust(pm) |
4696 | register PMOP *pm; | |
378cc40b | 4697 | { |
11343788 | 4698 | dTHR; |
79072805 LW |
4699 | if (!pm->op_pmshort && pm->op_pmregexp->regstart && |
4700 | (!pm->op_pmregexp->regmust || pm->op_pmregexp->reganch & ROPT_ANCH) | |
d48672a2 | 4701 | ) { |
79072805 LW |
4702 | if (!(pm->op_pmregexp->reganch & ROPT_ANCH)) |
4703 | pm->op_pmflags |= PMf_SCANFIRST; | |
8990e307 | 4704 | pm->op_pmshort = SvREFCNT_inc(pm->op_pmregexp->regstart); |
748a9306 | 4705 | pm->op_pmslen = SvCUR(pm->op_pmshort); |
d48672a2 | 4706 | } |
79072805 LW |
4707 | else if (pm->op_pmregexp->regmust) {/* is there a better short-circuit? */ |
4708 | if (pm->op_pmshort && | |
4709 | sv_eq(pm->op_pmshort,pm->op_pmregexp->regmust)) | |
a687059c | 4710 | { |
79072805 | 4711 | if (pm->op_pmflags & PMf_SCANFIRST) { |
8990e307 | 4712 | SvREFCNT_dec(pm->op_pmshort); |
79072805 | 4713 | pm->op_pmshort = Nullsv; |
378cc40b LW |
4714 | } |
4715 | else { | |
8990e307 | 4716 | SvREFCNT_dec(pm->op_pmregexp->regmust); |
79072805 | 4717 | pm->op_pmregexp->regmust = Nullsv; |
378cc40b LW |
4718 | return; |
4719 | } | |
4720 | } | |
774d564b | 4721 | /* promote the better string */ |
5cd24f17 | 4722 | if ((!pm->op_pmshort && |
4723 | !(pm->op_pmregexp->reganch & ROPT_ANCH_GPOS)) || | |
774d564b | 4724 | ((pm->op_pmflags & PMf_SCANFIRST) && |
4725 | (SvCUR(pm->op_pmshort) < SvCUR(pm->op_pmregexp->regmust)))) { | |
8990e307 | 4726 | SvREFCNT_dec(pm->op_pmshort); /* ok if null */ |
79072805 | 4727 | pm->op_pmshort = pm->op_pmregexp->regmust; |
748a9306 | 4728 | pm->op_pmslen = SvCUR(pm->op_pmshort); |
79072805 LW |
4729 | pm->op_pmregexp->regmust = Nullsv; |
4730 | pm->op_pmflags |= PMf_SCANFIRST; | |
378cc40b LW |
4731 | } |
4732 | } | |
4733 | } | |
4734 | ||
8990e307 | 4735 | static char * |
79072805 | 4736 | scan_trans(start) |
2f3197b3 | 4737 | char *start; |
378cc40b | 4738 | { |
a0d0e21e | 4739 | register char* s; |
11343788 | 4740 | OP *o; |
79072805 LW |
4741 | short *tbl; |
4742 | I32 squash; | |
4743 | I32 delete; | |
4744 | I32 complement; | |
4745 | ||
4746 | yylval.ival = OP_NULL; | |
4747 | ||
a0d0e21e | 4748 | s = scan_str(start); |
79072805 LW |
4749 | if (!s) { |
4750 | if (lex_stuff) | |
8990e307 | 4751 | SvREFCNT_dec(lex_stuff); |
79072805 | 4752 | lex_stuff = Nullsv; |
463ee0b2 | 4753 | croak("Translation pattern not terminated"); |
a687059c | 4754 | } |
a0d0e21e | 4755 | if (s[-1] == multi_open) |
2f3197b3 LW |
4756 | s--; |
4757 | ||
93a17b20 | 4758 | s = scan_str(s); |
79072805 LW |
4759 | if (!s) { |
4760 | if (lex_stuff) | |
8990e307 | 4761 | SvREFCNT_dec(lex_stuff); |
79072805 LW |
4762 | lex_stuff = Nullsv; |
4763 | if (lex_repl) | |
8990e307 | 4764 | SvREFCNT_dec(lex_repl); |
79072805 | 4765 | lex_repl = Nullsv; |
463ee0b2 | 4766 | croak("Translation replacement not terminated"); |
a687059c | 4767 | } |
79072805 LW |
4768 | |
4769 | New(803,tbl,256,short); | |
11343788 | 4770 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
2f3197b3 | 4771 | |
395c3793 LW |
4772 | complement = delete = squash = 0; |
4773 | while (*s == 'c' || *s == 'd' || *s == 's') { | |
4774 | if (*s == 'c') | |
79072805 | 4775 | complement = OPpTRANS_COMPLEMENT; |
395c3793 | 4776 | else if (*s == 'd') |
79072805 | 4777 | delete = OPpTRANS_DELETE; |
395c3793 | 4778 | else |
79072805 | 4779 | squash = OPpTRANS_SQUASH; |
395c3793 LW |
4780 | s++; |
4781 | } | |
11343788 | 4782 | o->op_private = delete|squash|complement; |
79072805 | 4783 | |
11343788 | 4784 | lex_op = o; |
79072805 LW |
4785 | yylval.ival = OP_TRANS; |
4786 | return s; | |
4787 | } | |
4788 | ||
8990e307 | 4789 | static char * |
79072805 LW |
4790 | scan_heredoc(s) |
4791 | register char *s; | |
4792 | { | |
11343788 | 4793 | dTHR; |
79072805 LW |
4794 | SV *herewas; |
4795 | I32 op_type = OP_SCALAR; | |
4796 | I32 len; | |
4797 | SV *tmpstr; | |
4798 | char term; | |
4799 | register char *d; | |
fc36a67e | 4800 | register char *e; |
4633a7c4 | 4801 | char *peek; |
fd2d0953 | 4802 | int outer = (rsfp && !lex_inwhat); |
79072805 LW |
4803 | |
4804 | s += 2; | |
4805 | d = tokenbuf; | |
fc36a67e | 4806 | e = tokenbuf + sizeof tokenbuf - 1; |
fd2d0953 | 4807 | if (!outer) |
79072805 | 4808 | *d++ = '\n'; |
4633a7c4 LW |
4809 | for (peek = s; *peek == ' ' || *peek == '\t'; peek++) ; |
4810 | if (*peek && strchr("`'\"",*peek)) { | |
4811 | s = peek; | |
79072805 | 4812 | term = *s++; |
fc36a67e | 4813 | s = delimcpy(d, e, s, bufend, term, &len); |
4814 | d += len; | |
79072805 LW |
4815 | if (s < bufend) |
4816 | s++; | |
79072805 LW |
4817 | } |
4818 | else { | |
4819 | if (*s == '\\') | |
4820 | s++, term = '\''; | |
4821 | else | |
4822 | term = '"'; | |
4633a7c4 LW |
4823 | if (!isALNUM(*s)) |
4824 | deprecate("bare << to mean <<\"\""); | |
fc36a67e | 4825 | for (; isALNUM(*s); s++) { |
4826 | if (d < e) | |
4827 | *d++ = *s; | |
4828 | } | |
4829 | } | |
4830 | if (d >= tokenbuf + sizeof tokenbuf - 1) | |
4831 | croak("Delimiter for here document is too long"); | |
79072805 LW |
4832 | *d++ = '\n'; |
4833 | *d = '\0'; | |
4834 | len = d - tokenbuf; | |
4835 | d = "\n"; | |
fd2d0953 | 4836 | if (outer || !(d=ninstr(s,bufend,d,d+1))) |
79072805 LW |
4837 | herewas = newSVpv(s,bufend-s); |
4838 | else | |
4839 | s--, herewas = newSVpv(s,d-s); | |
4840 | s += SvCUR(herewas); | |
748a9306 LW |
4841 | |
4842 | tmpstr = NEWSV(87,80); | |
4843 | sv_upgrade(tmpstr, SVt_PVIV); | |
4844 | if (term == '\'') { | |
79072805 | 4845 | op_type = OP_CONST; |
748a9306 LW |
4846 | SvIVX(tmpstr) = -1; |
4847 | } | |
4848 | else if (term == '`') { | |
79072805 | 4849 | op_type = OP_BACKTICK; |
748a9306 LW |
4850 | SvIVX(tmpstr) = '\\'; |
4851 | } | |
79072805 LW |
4852 | |
4853 | CLINE; | |
4854 | multi_start = curcop->cop_line; | |
4855 | multi_open = multi_close = '<'; | |
79072805 | 4856 | term = *tokenbuf; |
fd2d0953 | 4857 | if (!outer) { |
79072805 LW |
4858 | d = s; |
4859 | while (s < bufend && | |
36477c24 | 4860 | (*s != term || memNE(s,tokenbuf,len)) ) { |
79072805 LW |
4861 | if (*s++ == '\n') |
4862 | curcop->cop_line++; | |
4863 | } | |
4864 | if (s >= bufend) { | |
4865 | curcop->cop_line = multi_start; | |
8990e307 | 4866 | missingterm(tokenbuf); |
79072805 LW |
4867 | } |
4868 | sv_setpvn(tmpstr,d+1,s-d); | |
4869 | s += len - 1; | |
4870 | sv_catpvn(herewas,s,bufend-s); | |
4871 | sv_setsv(linestr,herewas); | |
fd049845 | 4872 | oldoldbufptr = oldbufptr = bufptr = s = linestart = SvPVX(linestr); |
463ee0b2 | 4873 | bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 LW |
4874 | } |
4875 | else | |
4876 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
4877 | while (s >= bufend) { /* multiple line string? */ | |
fd2d0953 | 4878 | if (!outer || |
fd049845 | 4879 | !(oldoldbufptr = oldbufptr = s = linestart = filter_gets(linestr, rsfp, 0))) { |
79072805 | 4880 | curcop->cop_line = multi_start; |
8990e307 | 4881 | missingterm(tokenbuf); |
79072805 LW |
4882 | } |
4883 | curcop->cop_line++; | |
84902520 | 4884 | if (PERLDB_LINE && curstash != debstash) { |
79072805 LW |
4885 | SV *sv = NEWSV(88,0); |
4886 | ||
93a17b20 | 4887 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
4888 | sv_setsv(sv,linestr); |
4889 | av_store(GvAV(curcop->cop_filegv), | |
4890 | (I32)curcop->cop_line,sv); | |
4891 | } | |
463ee0b2 | 4892 | bufend = SvPVX(linestr) + SvCUR(linestr); |
36477c24 | 4893 | if (*s == term && memEQ(s,tokenbuf,len)) { |
79072805 LW |
4894 | s = bufend - 1; |
4895 | *s = ' '; | |
4896 | sv_catsv(linestr,herewas); | |
463ee0b2 | 4897 | bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 LW |
4898 | } |
4899 | else { | |
4900 | s = bufend; | |
4901 | sv_catsv(tmpstr,linestr); | |
395c3793 LW |
4902 | } |
4903 | } | |
79072805 LW |
4904 | multi_end = curcop->cop_line; |
4905 | s++; | |
4906 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { | |
4907 | SvLEN_set(tmpstr, SvCUR(tmpstr) + 1); | |
463ee0b2 | 4908 | Renew(SvPVX(tmpstr), SvLEN(tmpstr), char); |
79072805 | 4909 | } |
8990e307 | 4910 | SvREFCNT_dec(herewas); |
79072805 LW |
4911 | lex_stuff = tmpstr; |
4912 | yylval.ival = op_type; | |
4913 | return s; | |
4914 | } | |
4915 | ||
8990e307 | 4916 | static char * |
79072805 LW |
4917 | scan_inputsymbol(start) |
4918 | char *start; | |
4919 | { | |
4920 | register char *s = start; | |
4921 | register char *d; | |
fc36a67e | 4922 | register char *e; |
79072805 LW |
4923 | I32 len; |
4924 | ||
4925 | d = tokenbuf; | |
fc36a67e | 4926 | e = tokenbuf + sizeof tokenbuf; |
4927 | s = delimcpy(d, e, s + 1, bufend, '>', &len); | |
4928 | if (len >= sizeof tokenbuf) | |
4929 | croak("Excessively long <> operator"); | |
4930 | if (s >= bufend) | |
463ee0b2 | 4931 | croak("Unterminated <> operator"); |
fc36a67e | 4932 | s++; |
4633a7c4 | 4933 | if (*d == '$' && d[1]) d++; |
a0d0e21e | 4934 | while (*d && (isALNUM(*d) || *d == '\'' || *d == ':')) |
79072805 LW |
4935 | d++; |
4936 | if (d - tokenbuf != len) { | |
4937 | yylval.ival = OP_GLOB; | |
4938 | set_csh(); | |
4939 | s = scan_str(start); | |
4940 | if (!s) | |
463ee0b2 | 4941 | croak("Glob not terminated"); |
79072805 LW |
4942 | return s; |
4943 | } | |
395c3793 | 4944 | else { |
79072805 LW |
4945 | d = tokenbuf; |
4946 | if (!len) | |
4947 | (void)strcpy(d,"ARGV"); | |
4948 | if (*d == '$') { | |
a0d0e21e | 4949 | I32 tmp; |
11343788 MB |
4950 | if ((tmp = pad_findmy(d)) != NOT_IN_PAD) { |
4951 | OP *o = newOP(OP_PADSV, 0); | |
4952 | o->op_targ = tmp; | |
4953 | lex_op = (OP*)newUNOP(OP_READLINE, 0, newUNOP(OP_RV2GV, 0, o)); | |
a0d0e21e LW |
4954 | } |
4955 | else { | |
4956 | GV *gv = gv_fetchpv(d+1,TRUE, SVt_PV); | |
4957 | lex_op = (OP*)newUNOP(OP_READLINE, 0, | |
4958 | newUNOP(OP_RV2GV, 0, | |
4959 | newUNOP(OP_RV2SV, 0, | |
4960 | newGVOP(OP_GV, 0, gv)))); | |
4961 | } | |
79072805 LW |
4962 | yylval.ival = OP_NULL; |
4963 | } | |
4964 | else { | |
85e6fe83 | 4965 | GV *gv = gv_fetchpv(d,TRUE, SVt_PVIO); |
79072805 LW |
4966 | lex_op = (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); |
4967 | yylval.ival = OP_NULL; | |
4968 | } | |
4969 | } | |
4970 | return s; | |
4971 | } | |
4972 | ||
8990e307 | 4973 | static char * |
79072805 LW |
4974 | scan_str(start) |
4975 | char *start; | |
4976 | { | |
11343788 | 4977 | dTHR; |
93a17b20 | 4978 | SV *sv; |
79072805 LW |
4979 | char *tmps; |
4980 | register char *s = start; | |
a0d0e21e | 4981 | register char term; |
93a17b20 LW |
4982 | register char *to; |
4983 | I32 brackets = 1; | |
79072805 | 4984 | |
fb73857a | 4985 | if (isSPACE(*s)) |
4986 | s = skipspace(s); | |
79072805 | 4987 | CLINE; |
a0d0e21e | 4988 | term = *s; |
79072805 LW |
4989 | multi_start = curcop->cop_line; |
4990 | multi_open = term; | |
93a17b20 | 4991 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
79072805 LW |
4992 | term = tmps[5]; |
4993 | multi_close = term; | |
4994 | ||
93a17b20 | 4995 | sv = NEWSV(87,80); |
ed6116ce LW |
4996 | sv_upgrade(sv, SVt_PVIV); |
4997 | SvIVX(sv) = term; | |
a0d0e21e | 4998 | (void)SvPOK_only(sv); /* validate pointer */ |
93a17b20 LW |
4999 | s++; |
5000 | for (;;) { | |
5001 | SvGROW(sv, SvCUR(sv) + (bufend - s) + 1); | |
463ee0b2 | 5002 | to = SvPVX(sv)+SvCUR(sv); |
93a17b20 LW |
5003 | if (multi_open == multi_close) { |
5004 | for (; s < bufend; s++,to++) { | |
463ee0b2 LW |
5005 | if (*s == '\n' && !rsfp) |
5006 | curcop->cop_line++; | |
a0d0e21e LW |
5007 | if (*s == '\\' && s+1 < bufend && term != '\\') { |
5008 | if (s[1] == term) | |
5009 | s++; | |
5010 | else | |
5011 | *to++ = *s++; | |
5012 | } | |
93a17b20 LW |
5013 | else if (*s == term) |
5014 | break; | |
5015 | *to = *s; | |
5016 | } | |
5017 | } | |
5018 | else { | |
5019 | for (; s < bufend; s++,to++) { | |
463ee0b2 LW |
5020 | if (*s == '\n' && !rsfp) |
5021 | curcop->cop_line++; | |
6d07e5e9 GS |
5022 | if (*s == '\\' && s+1 < bufend) { |
5023 | if ((s[1] == multi_open) || (s[1] == multi_close)) | |
a0d0e21e LW |
5024 | s++; |
5025 | else | |
5026 | *to++ = *s++; | |
5027 | } | |
6d07e5e9 | 5028 | else if (*s == multi_close && --brackets <= 0) |
93a17b20 LW |
5029 | break; |
5030 | else if (*s == multi_open) | |
5031 | brackets++; | |
5032 | *to = *s; | |
5033 | } | |
5034 | } | |
5035 | *to = '\0'; | |
463ee0b2 | 5036 | SvCUR_set(sv, to - SvPVX(sv)); |
93a17b20 LW |
5037 | |
5038 | if (s < bufend) break; /* string ends on this line? */ | |
79072805 | 5039 | |
79072805 | 5040 | if (!rsfp || |
fd049845 | 5041 | !(oldoldbufptr = oldbufptr = s = linestart = filter_gets(linestr, rsfp, 0))) { |
c07a80fd | 5042 | sv_free(sv); |
79072805 LW |
5043 | curcop->cop_line = multi_start; |
5044 | return Nullch; | |
5045 | } | |
5046 | curcop->cop_line++; | |
84902520 | 5047 | if (PERLDB_LINE && curstash != debstash) { |
79072805 LW |
5048 | SV *sv = NEWSV(88,0); |
5049 | ||
93a17b20 | 5050 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
5051 | sv_setsv(sv,linestr); |
5052 | av_store(GvAV(curcop->cop_filegv), | |
5053 | (I32)curcop->cop_line, sv); | |
395c3793 | 5054 | } |
463ee0b2 | 5055 | bufend = SvPVX(linestr) + SvCUR(linestr); |
378cc40b | 5056 | } |
79072805 LW |
5057 | multi_end = curcop->cop_line; |
5058 | s++; | |
93a17b20 LW |
5059 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
5060 | SvLEN_set(sv, SvCUR(sv) + 1); | |
463ee0b2 | 5061 | Renew(SvPVX(sv), SvLEN(sv), char); |
79072805 LW |
5062 | } |
5063 | if (lex_stuff) | |
93a17b20 | 5064 | lex_repl = sv; |
79072805 | 5065 | else |
93a17b20 | 5066 | lex_stuff = sv; |
378cc40b LW |
5067 | return s; |
5068 | } | |
5069 | ||
5070 | char * | |
79072805 | 5071 | scan_num(start) |
2f3197b3 | 5072 | char *start; |
378cc40b | 5073 | { |
2f3197b3 | 5074 | register char *s = start; |
378cc40b | 5075 | register char *d; |
fc36a67e | 5076 | register char *e; |
1e422769 | 5077 | I32 tryiv; |
79072805 LW |
5078 | double value; |
5079 | SV *sv; | |
5080 | I32 floatit; | |
93a17b20 | 5081 | char *lastub = 0; |
fc36a67e | 5082 | static char number_too_long[] = "Number too long"; |
378cc40b LW |
5083 | |
5084 | switch (*s) { | |
79072805 | 5085 | default: |
463ee0b2 | 5086 | croak("panic: scan_num"); |
378cc40b LW |
5087 | case '0': |
5088 | { | |
55497cff | 5089 | UV u; |
79072805 | 5090 | I32 shift; |
55497cff | 5091 | bool overflowed = FALSE; |
378cc40b | 5092 | |
378cc40b LW |
5093 | if (s[1] == 'x') { |
5094 | shift = 4; | |
5095 | s += 2; | |
5096 | } | |
5097 | else if (s[1] == '.') | |
5098 | goto decimal; | |
5099 | else | |
5100 | shift = 3; | |
55497cff | 5101 | u = 0; |
378cc40b | 5102 | for (;;) { |
55497cff | 5103 | UV n, b; |
5104 | ||
378cc40b LW |
5105 | switch (*s) { |
5106 | default: | |
5107 | goto out; | |
de3bb511 LW |
5108 | case '_': |
5109 | s++; | |
5110 | break; | |
378cc40b LW |
5111 | case '8': case '9': |
5112 | if (shift != 4) | |
a687059c | 5113 | yyerror("Illegal octal digit"); |
378cc40b LW |
5114 | /* FALL THROUGH */ |
5115 | case '0': case '1': case '2': case '3': case '4': | |
5116 | case '5': case '6': case '7': | |
55497cff | 5117 | b = *s++ & 15; |
5118 | goto digit; | |
378cc40b LW |
5119 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
5120 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
5121 | if (shift != 4) | |
5122 | goto out; | |
55497cff | 5123 | b = (*s++ & 7) + 9; |
5124 | digit: | |
5125 | n = u << shift; | |
5126 | if (!overflowed && (n >> shift) != u) { | |
5127 | warn("Integer overflow in %s number", | |
5128 | (shift == 4) ? "hex" : "octal"); | |
5129 | overflowed = TRUE; | |
5130 | } | |
5131 | u = n | b; | |
378cc40b LW |
5132 | break; |
5133 | } | |
5134 | } | |
5135 | out: | |
79072805 | 5136 | sv = NEWSV(92,0); |
55497cff | 5137 | sv_setuv(sv, u); |
378cc40b LW |
5138 | } |
5139 | break; | |
5140 | case '1': case '2': case '3': case '4': case '5': | |
5141 | case '6': case '7': case '8': case '9': case '.': | |
5142 | decimal: | |
378cc40b | 5143 | d = tokenbuf; |
fc36a67e | 5144 | e = tokenbuf + sizeof tokenbuf - 6; /* room for various punctuation */ |
79072805 | 5145 | floatit = FALSE; |
de3bb511 | 5146 | while (isDIGIT(*s) || *s == '_') { |
93a17b20 LW |
5147 | if (*s == '_') { |
5148 | if (dowarn && lastub && s - lastub != 3) | |
8990e307 | 5149 | warn("Misplaced _ in number"); |
93a17b20 LW |
5150 | lastub = ++s; |
5151 | } | |
fc36a67e | 5152 | else { |
5153 | if (d >= e) | |
5154 | croak(number_too_long); | |
378cc40b | 5155 | *d++ = *s++; |
fc36a67e | 5156 | } |
378cc40b | 5157 | } |
93a17b20 | 5158 | if (dowarn && lastub && s - lastub != 3) |
8990e307 | 5159 | warn("Misplaced _ in number"); |
2f3197b3 | 5160 | if (*s == '.' && s[1] != '.') { |
79072805 | 5161 | floatit = TRUE; |
378cc40b | 5162 | *d++ = *s++; |
fc36a67e | 5163 | for (; isDIGIT(*s) || *s == '_'; s++) { |
5164 | if (d >= e) | |
5165 | croak(number_too_long); | |
5166 | if (*s != '_') | |
5167 | *d++ = *s; | |
378cc40b LW |
5168 | } |
5169 | } | |
93a17b20 | 5170 | if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) { |
79072805 LW |
5171 | floatit = TRUE; |
5172 | s++; | |
5173 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ | |
378cc40b LW |
5174 | if (*s == '+' || *s == '-') |
5175 | *d++ = *s++; | |
fc36a67e | 5176 | while (isDIGIT(*s)) { |
5177 | if (d >= e) | |
5178 | croak(number_too_long); | |
378cc40b | 5179 | *d++ = *s++; |
fc36a67e | 5180 | } |
378cc40b LW |
5181 | } |
5182 | *d = '\0'; | |
79072805 | 5183 | sv = NEWSV(92,0); |
36477c24 | 5184 | SET_NUMERIC_STANDARD(); |
79072805 | 5185 | value = atof(tokenbuf); |
1e422769 | 5186 | tryiv = I_V(value); |
5187 | if (!floatit && (double)tryiv == value) | |
5188 | sv_setiv(sv, tryiv); | |
2f3197b3 | 5189 | else |
1e422769 | 5190 | sv_setnv(sv, value); |
378cc40b | 5191 | break; |
79072805 | 5192 | } |
a687059c | 5193 | |
79072805 | 5194 | yylval.opval = newSVOP(OP_CONST, 0, sv); |
a687059c | 5195 | |
378cc40b LW |
5196 | return s; |
5197 | } | |
5198 | ||
8990e307 | 5199 | static char * |
79072805 LW |
5200 | scan_formline(s) |
5201 | register char *s; | |
378cc40b | 5202 | { |
11343788 | 5203 | dTHR; |
79072805 | 5204 | register char *eol; |
378cc40b | 5205 | register char *t; |
a0d0e21e | 5206 | SV *stuff = newSVpv("",0); |
79072805 | 5207 | bool needargs = FALSE; |
378cc40b | 5208 | |
79072805 | 5209 | while (!needargs) { |
85e6fe83 | 5210 | if (*s == '.' || *s == '}') { |
79072805 LW |
5211 | /*SUPPRESS 530*/ |
5212 | for (t = s+1; *t == ' ' || *t == '\t'; t++) ; | |
5213 | if (*t == '\n') | |
5214 | break; | |
5215 | } | |
0f85fab0 | 5216 | if (in_eval && !rsfp) { |
93a17b20 | 5217 | eol = strchr(s,'\n'); |
0f85fab0 LW |
5218 | if (!eol++) |
5219 | eol = bufend; | |
5220 | } | |
5221 | else | |
463ee0b2 | 5222 | eol = bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 | 5223 | if (*s != '#') { |
a0d0e21e LW |
5224 | for (t = s; t < eol; t++) { |
5225 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
5226 | needargs = FALSE; | |
5227 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 5228 | } |
a0d0e21e LW |
5229 | if (*t == '@' || *t == '^') |
5230 | needargs = TRUE; | |
378cc40b | 5231 | } |
a0d0e21e | 5232 | sv_catpvn(stuff, s, eol-s); |
79072805 LW |
5233 | } |
5234 | s = eol; | |
5235 | if (rsfp) { | |
fd049845 | 5236 | s = filter_gets(linestr, rsfp, 0); |
5237 | oldoldbufptr = oldbufptr = bufptr = linestart = SvPVX(linestr); | |
a0d0e21e | 5238 | bufend = bufptr + SvCUR(linestr); |
79072805 LW |
5239 | if (!s) { |
5240 | s = bufptr; | |
5241 | yyerror("Format not terminated"); | |
378cc40b LW |
5242 | break; |
5243 | } | |
378cc40b | 5244 | } |
463ee0b2 | 5245 | incline(s); |
79072805 | 5246 | } |
a0d0e21e LW |
5247 | enough: |
5248 | if (SvCUR(stuff)) { | |
463ee0b2 | 5249 | expect = XTERM; |
79072805 | 5250 | if (needargs) { |
a0d0e21e | 5251 | lex_state = LEX_NORMAL; |
79072805 LW |
5252 | nextval[nexttoke].ival = 0; |
5253 | force_next(','); | |
5254 | } | |
a0d0e21e LW |
5255 | else |
5256 | lex_state = LEX_FORMLINE; | |
79072805 LW |
5257 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
5258 | force_next(THING); | |
5259 | nextval[nexttoke].ival = OP_FORMLINE; | |
5260 | force_next(LSTOP); | |
378cc40b | 5261 | } |
79072805 | 5262 | else { |
8990e307 | 5263 | SvREFCNT_dec(stuff); |
85e6fe83 | 5264 | lex_formbrack = 0; |
79072805 LW |
5265 | bufptr = s; |
5266 | } | |
5267 | return s; | |
378cc40b | 5268 | } |
a687059c | 5269 | |
2f3197b3 | 5270 | static void |
a687059c LW |
5271 | set_csh() |
5272 | { | |
ae986130 LW |
5273 | #ifdef CSH |
5274 | if (!cshlen) | |
5275 | cshlen = strlen(cshname); | |
5276 | #endif | |
a687059c | 5277 | } |
463ee0b2 | 5278 | |
ba6d6ac9 | 5279 | I32 |
774d564b | 5280 | start_subparse(is_format, flags) |
5281 | I32 is_format; | |
fa83b5b6 | 5282 | U32 flags; |
8990e307 | 5283 | { |
11343788 | 5284 | dTHR; |
ba6d6ac9 | 5285 | I32 oldsavestack_ix = savestack_ix; |
748a9306 LW |
5286 | CV* outsidecv = compcv; |
5287 | AV* comppadlist; | |
8990e307 | 5288 | |
e9a444f0 LW |
5289 | if (compcv) { |
5290 | assert(SvTYPE(compcv) == SVt_PVCV); | |
5291 | } | |
8990e307 LW |
5292 | save_I32(&subline); |
5293 | save_item(subname); | |
55497cff | 5294 | SAVEI32(padix); |
8990e307 LW |
5295 | SAVESPTR(curpad); |
5296 | SAVESPTR(comppad); | |
5297 | SAVESPTR(comppad_name); | |
748a9306 | 5298 | SAVESPTR(compcv); |
55497cff | 5299 | SAVEI32(comppad_name_fill); |
5300 | SAVEI32(min_intro_pending); | |
5301 | SAVEI32(max_intro_pending); | |
5302 | SAVEI32(pad_reset_pending); | |
748a9306 LW |
5303 | |
5304 | compcv = (CV*)NEWSV(1104,0); | |
774d564b | 5305 | sv_upgrade((SV *)compcv, is_format ? SVt_PVFM : SVt_PVCV); |
fa83b5b6 | 5306 | CvFLAGS(compcv) |= flags; |
748a9306 | 5307 | |
8990e307 | 5308 | comppad = newAV(); |
6d4ff0d2 MB |
5309 | av_push(comppad, Nullsv); |
5310 | curpad = AvARRAY(comppad); | |
8990e307 LW |
5311 | comppad_name = newAV(); |
5312 | comppad_name_fill = 0; | |
5313 | min_intro_pending = 0; | |
8990e307 | 5314 | padix = 0; |
8990e307 | 5315 | subline = curcop->cop_line; |
6d4ff0d2 MB |
5316 | #ifdef USE_THREADS |
5317 | av_store(comppad_name, 0, newSVpv("@_", 2)); | |
5318 | curpad[0] = (SV*)newAV(); | |
5319 | SvPADMY_on(curpad[0]); /* XXX Needed? */ | |
5320 | CvOWNER(compcv) = 0; | |
12ca11f6 | 5321 | New(666, CvMUTEXP(compcv), 1, perl_mutex); |
6d4ff0d2 | 5322 | MUTEX_INIT(CvMUTEXP(compcv)); |
6d4ff0d2 | 5323 | #endif /* USE_THREADS */ |
748a9306 LW |
5324 | |
5325 | comppadlist = newAV(); | |
5326 | AvREAL_off(comppadlist); | |
8e07c86e AD |
5327 | av_store(comppadlist, 0, (SV*)comppad_name); |
5328 | av_store(comppadlist, 1, (SV*)comppad); | |
748a9306 LW |
5329 | |
5330 | CvPADLIST(compcv) = comppadlist; | |
e9a444f0 | 5331 | CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc((SV*)outsidecv); |
11343788 MB |
5332 | #ifdef USE_THREADS |
5333 | CvOWNER(compcv) = 0; | |
12ca11f6 | 5334 | New(666, CvMUTEXP(compcv), 1, perl_mutex); |
11343788 | 5335 | MUTEX_INIT(CvMUTEXP(compcv)); |
11343788 | 5336 | #endif /* USE_THREADS */ |
748a9306 | 5337 | |
8990e307 LW |
5338 | return oldsavestack_ix; |
5339 | } | |
5340 | ||
5341 | int | |
5342 | yywarn(s) | |
5343 | char *s; | |
5344 | { | |
11343788 | 5345 | dTHR; |
8990e307 | 5346 | --error_count; |
748a9306 LW |
5347 | in_eval |= 2; |
5348 | yyerror(s); | |
5349 | in_eval &= ~2; | |
5350 | return 0; | |
8990e307 LW |
5351 | } |
5352 | ||
5353 | int | |
463ee0b2 LW |
5354 | yyerror(s) |
5355 | char *s; | |
5356 | { | |
11343788 | 5357 | dTHR; |
68dc0745 | 5358 | char *where = NULL; |
5359 | char *context = NULL; | |
5360 | int contlen = -1; | |
46fc3d4c | 5361 | SV *msg; |
463ee0b2 | 5362 | |
54310121 | 5363 | if (!yychar || (yychar == ';' && !rsfp)) |
5364 | where = "at EOF"; | |
5365 | else if (bufptr > oldoldbufptr && bufptr - oldoldbufptr < 200 && | |
463ee0b2 LW |
5366 | oldoldbufptr != oldbufptr && oldbufptr != bufptr) { |
5367 | while (isSPACE(*oldoldbufptr)) | |
5368 | oldoldbufptr++; | |
68dc0745 | 5369 | context = oldoldbufptr; |
5370 | contlen = bufptr - oldoldbufptr; | |
463ee0b2 LW |
5371 | } |
5372 | else if (bufptr > oldbufptr && bufptr - oldbufptr < 200 && | |
5373 | oldbufptr != bufptr) { | |
5374 | while (isSPACE(*oldbufptr)) | |
5375 | oldbufptr++; | |
68dc0745 | 5376 | context = oldbufptr; |
5377 | contlen = bufptr - oldbufptr; | |
463ee0b2 LW |
5378 | } |
5379 | else if (yychar > 255) | |
68dc0745 | 5380 | where = "next token ???"; |
463ee0b2 LW |
5381 | else if ((yychar & 127) == 127) { |
5382 | if (lex_state == LEX_NORMAL || | |
5383 | (lex_state == LEX_KNOWNEXT && lex_defer == LEX_NORMAL)) | |
68dc0745 | 5384 | where = "at end of line"; |
4633a7c4 | 5385 | else if (lex_inpat) |
68dc0745 | 5386 | where = "within pattern"; |
463ee0b2 | 5387 | else |
68dc0745 | 5388 | where = "within string"; |
463ee0b2 | 5389 | } |
46fc3d4c | 5390 | else { |
5391 | SV *where_sv = sv_2mortal(newSVpv("next char ", 0)); | |
5392 | if (yychar < 32) | |
5393 | sv_catpvf(where_sv, "^%c", toCTRL(yychar)); | |
5394 | else if (isPRINT_LC(yychar)) | |
5395 | sv_catpvf(where_sv, "%c", yychar); | |
463ee0b2 | 5396 | else |
46fc3d4c | 5397 | sv_catpvf(where_sv, "\\%03o", yychar & 255); |
5398 | where = SvPVX(where_sv); | |
463ee0b2 | 5399 | } |
46fc3d4c | 5400 | msg = sv_2mortal(newSVpv(s, 0)); |
fc36a67e | 5401 | sv_catpvf(msg, " at %_ line %ld, ", |
46fc3d4c | 5402 | GvSV(curcop->cop_filegv), (long)curcop->cop_line); |
68dc0745 | 5403 | if (context) |
46fc3d4c | 5404 | sv_catpvf(msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 5405 | else |
46fc3d4c | 5406 | sv_catpvf(msg, "%s\n", where); |
4fdae800 | 5407 | if (multi_start < multi_end && (U32)(curcop->cop_line - multi_end) <= 1) { |
46fc3d4c | 5408 | sv_catpvf(msg, |
4fdae800 | 5409 | " (Might be a runaway multi-line %c%c string starting on line %ld)\n", |
ff0cee69 | 5410 | (int)multi_open,(int)multi_close,(long)multi_start); |
a0d0e21e LW |
5411 | multi_end = 0; |
5412 | } | |
748a9306 | 5413 | if (in_eval & 2) |
fc36a67e | 5414 | warn("%_", msg); |
748a9306 | 5415 | else if (in_eval) |
46fc3d4c | 5416 | sv_catsv(GvSV(errgv), msg); |
463ee0b2 | 5417 | else |
46fc3d4c | 5418 | PerlIO_write(PerlIO_stderr(), SvPVX(msg), SvCUR(msg)); |
463ee0b2 | 5419 | if (++error_count >= 10) |
fc36a67e | 5420 | croak("%_ has too many errors.\n", GvSV(curcop->cop_filegv)); |
4633a7c4 | 5421 | in_my = 0; |
c750a3ec | 5422 | in_my_stash = Nullhv; |
463ee0b2 LW |
5423 | return 0; |
5424 | } |