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 | ||
a863c7d1 MB |
1259 | if (!strchr(tokenbuf,':')) { |
1260 | #ifdef USE_THREADS | |
1261 | /* Check for single character per-thread magicals */ | |
1262 | if (tokenbuf[0] == '$' && tokenbuf[2] == '\0' | |
554b3eca MB |
1263 | && !isALPHA(tokenbuf[1]) /* Rule out obvious non-magicals */ |
1264 | && (tmp = find_thread_magical(&tokenbuf[1])) != NOT_IN_PAD) | |
1265 | { | |
a863c7d1 MB |
1266 | yylval.opval = newOP(OP_SPECIFIC, 0); |
1267 | yylval.opval->op_targ = tmp; | |
1268 | return PRIVATEREF; | |
1269 | } | |
1270 | #endif /* USE_THREADS */ | |
1271 | if ((tmp = pad_findmy(tokenbuf)) != NOT_IN_PAD) { | |
1272 | if (last_lop_op == OP_SORT && | |
1273 | tokenbuf[0] == '$' && | |
1274 | (tokenbuf[1] == 'a' || tokenbuf[1] == 'b') | |
1275 | && !tokenbuf[2]) | |
bbce6d69 | 1276 | { |
a863c7d1 MB |
1277 | for (d = in_eval ? oldoldbufptr : linestart; |
1278 | d < bufend && *d != '\n'; | |
1279 | d++) | |
1280 | { | |
1281 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
1282 | croak("Can't use \"my %s\" in sort comparison", | |
1283 | tokenbuf); | |
1284 | } | |
bbce6d69 | 1285 | } |
1286 | } | |
bbce6d69 | 1287 | |
a863c7d1 MB |
1288 | yylval.opval = newOP(OP_PADANY, 0); |
1289 | yylval.opval->op_targ = tmp; | |
1290 | return PRIVATEREF; | |
1291 | } | |
bbce6d69 | 1292 | } |
1293 | ||
1294 | /* Force them to make up their mind on "@foo". */ | |
1295 | if (pit == '@' && lex_state != LEX_NORMAL && !lex_brackets) { | |
1296 | GV *gv = gv_fetchpv(tokenbuf+1, FALSE, SVt_PVAV); | |
46fc3d4c | 1297 | if (!gv || ((tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
1298 | yyerror(form("In string, %s now must be written as \\%s", | |
1299 | tokenbuf, tokenbuf)); | |
bbce6d69 | 1300 | } |
1301 | ||
1302 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf+1, 0)); | |
1303 | yylval.opval->op_private = OPpCONST_ENTERED; | |
1304 | gv_fetchpv(tokenbuf+1, in_eval ? GV_ADDMULTI : TRUE, | |
1305 | ((tokenbuf[0] == '$') ? SVt_PV | |
1306 | : (tokenbuf[0] == '@') ? SVt_PVAV | |
1307 | : SVt_PVHV)); | |
1308 | return WORD; | |
1309 | } | |
1310 | ||
79072805 LW |
1311 | switch (lex_state) { |
1312 | #ifdef COMMENTARY | |
1313 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
1314 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
1315 | break; | |
1316 | #endif | |
1317 | ||
1318 | case LEX_KNOWNEXT: | |
1319 | nexttoke--; | |
1320 | yylval = nextval[nexttoke]; | |
463ee0b2 | 1321 | if (!nexttoke) { |
79072805 | 1322 | lex_state = lex_defer; |
463ee0b2 | 1323 | expect = lex_expect; |
a0d0e21e | 1324 | lex_defer = LEX_NORMAL; |
463ee0b2 | 1325 | } |
79072805 LW |
1326 | return(nexttype[nexttoke]); |
1327 | ||
1328 | case LEX_INTERPCASEMOD: | |
1329 | #ifdef DEBUGGING | |
1330 | if (bufptr != bufend && *bufptr != '\\') | |
463ee0b2 | 1331 | croak("panic: INTERPCASEMOD"); |
79072805 LW |
1332 | #endif |
1333 | if (bufptr == bufend || bufptr[1] == 'E') { | |
a0d0e21e | 1334 | char oldmod; |
79072805 | 1335 | if (lex_casemods) { |
a0d0e21e LW |
1336 | oldmod = lex_casestack[--lex_casemods]; |
1337 | lex_casestack[lex_casemods] = '\0'; | |
1338 | if (bufptr != bufend && strchr("LUQ", oldmod)) { | |
1339 | bufptr += 2; | |
1340 | lex_state = LEX_INTERPCONCAT; | |
1341 | } | |
79072805 LW |
1342 | return ')'; |
1343 | } | |
a0d0e21e LW |
1344 | if (bufptr != bufend) |
1345 | bufptr += 2; | |
1346 | lex_state = LEX_INTERPCONCAT; | |
79072805 LW |
1347 | return yylex(); |
1348 | } | |
1349 | else { | |
1350 | s = bufptr + 1; | |
1351 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) | |
1352 | tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */ | |
a0d0e21e LW |
1353 | if (strchr("LU", *s) && |
1354 | (strchr(lex_casestack, 'L') || strchr(lex_casestack, 'U'))) | |
1355 | { | |
1356 | lex_casestack[--lex_casemods] = '\0'; | |
1357 | return ')'; | |
1358 | } | |
1359 | if (lex_casemods > 10) { | |
89bfa8cd | 1360 | char* newlb = Renew(lex_casestack, lex_casemods + 2, char); |
a0d0e21e LW |
1361 | if (newlb != lex_casestack) { |
1362 | SAVEFREEPV(newlb); | |
1363 | lex_casestack = newlb; | |
1364 | } | |
1365 | } | |
1366 | lex_casestack[lex_casemods++] = *s; | |
1367 | lex_casestack[lex_casemods] = '\0'; | |
79072805 LW |
1368 | lex_state = LEX_INTERPCONCAT; |
1369 | nextval[nexttoke].ival = 0; | |
1370 | force_next('('); | |
1371 | if (*s == 'l') | |
1372 | nextval[nexttoke].ival = OP_LCFIRST; | |
1373 | else if (*s == 'u') | |
1374 | nextval[nexttoke].ival = OP_UCFIRST; | |
1375 | else if (*s == 'L') | |
1376 | nextval[nexttoke].ival = OP_LC; | |
1377 | else if (*s == 'U') | |
1378 | nextval[nexttoke].ival = OP_UC; | |
a0d0e21e LW |
1379 | else if (*s == 'Q') |
1380 | nextval[nexttoke].ival = OP_QUOTEMETA; | |
79072805 | 1381 | else |
463ee0b2 | 1382 | croak("panic: yylex"); |
79072805 LW |
1383 | bufptr = s + 1; |
1384 | force_next(FUNC); | |
1385 | if (lex_starts) { | |
1386 | s = bufptr; | |
463ee0b2 | 1387 | lex_starts = 0; |
79072805 LW |
1388 | Aop(OP_CONCAT); |
1389 | } | |
1390 | else | |
1391 | return yylex(); | |
1392 | } | |
1393 | ||
55497cff | 1394 | case LEX_INTERPPUSH: |
1395 | return sublex_push(); | |
1396 | ||
79072805 LW |
1397 | case LEX_INTERPSTART: |
1398 | if (bufptr == bufend) | |
1399 | return sublex_done(); | |
1400 | expect = XTERM; | |
1401 | lex_dojoin = (*bufptr == '@'); | |
1402 | lex_state = LEX_INTERPNORMAL; | |
1403 | if (lex_dojoin) { | |
1404 | nextval[nexttoke].ival = 0; | |
1405 | force_next(','); | |
554b3eca MB |
1406 | #ifdef USE_THREADS |
1407 | nextval[nexttoke].opval = newOP(OP_SPECIFIC, 0); | |
1408 | nextval[nexttoke].opval->op_targ = find_thread_magical("\""); | |
1409 | force_next(PRIVATEREF); | |
1410 | #else | |
a0d0e21e | 1411 | force_ident("\"", '$'); |
554b3eca | 1412 | #endif /* USE_THREADS */ |
79072805 LW |
1413 | nextval[nexttoke].ival = 0; |
1414 | force_next('$'); | |
1415 | nextval[nexttoke].ival = 0; | |
1416 | force_next('('); | |
1417 | nextval[nexttoke].ival = OP_JOIN; /* emulate join($", ...) */ | |
1418 | force_next(FUNC); | |
1419 | } | |
1420 | if (lex_starts++) { | |
1421 | s = bufptr; | |
1422 | Aop(OP_CONCAT); | |
1423 | } | |
68dc0745 | 1424 | return yylex(); |
79072805 LW |
1425 | |
1426 | case LEX_INTERPENDMAYBE: | |
1427 | if (intuit_more(bufptr)) { | |
1428 | lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
1429 | break; | |
1430 | } | |
1431 | /* FALL THROUGH */ | |
1432 | ||
1433 | case LEX_INTERPEND: | |
1434 | if (lex_dojoin) { | |
1435 | lex_dojoin = FALSE; | |
1436 | lex_state = LEX_INTERPCONCAT; | |
1437 | return ')'; | |
1438 | } | |
1439 | /* FALLTHROUGH */ | |
1440 | case LEX_INTERPCONCAT: | |
1441 | #ifdef DEBUGGING | |
1442 | if (lex_brackets) | |
463ee0b2 | 1443 | croak("panic: INTERPCONCAT"); |
79072805 LW |
1444 | #endif |
1445 | if (bufptr == bufend) | |
1446 | return sublex_done(); | |
1447 | ||
ed6116ce | 1448 | if (SvIVX(linestr) == '\'') { |
79072805 LW |
1449 | SV *sv = newSVsv(linestr); |
1450 | if (!lex_inpat) | |
1451 | sv = q(sv); | |
1452 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); | |
1453 | s = bufend; | |
1454 | } | |
1455 | else { | |
1456 | s = scan_const(bufptr); | |
1457 | if (*s == '\\') | |
1458 | lex_state = LEX_INTERPCASEMOD; | |
1459 | else | |
1460 | lex_state = LEX_INTERPSTART; | |
1461 | } | |
1462 | ||
1463 | if (s != bufptr) { | |
1464 | nextval[nexttoke] = yylval; | |
463ee0b2 | 1465 | expect = XTERM; |
79072805 LW |
1466 | force_next(THING); |
1467 | if (lex_starts++) | |
1468 | Aop(OP_CONCAT); | |
1469 | else { | |
1470 | bufptr = s; | |
1471 | return yylex(); | |
1472 | } | |
1473 | } | |
1474 | ||
1475 | return yylex(); | |
a0d0e21e LW |
1476 | case LEX_FORMLINE: |
1477 | lex_state = LEX_NORMAL; | |
1478 | s = scan_formline(bufptr); | |
1479 | if (!lex_formbrack) | |
1480 | goto rightbracket; | |
1481 | OPERATOR(';'); | |
79072805 LW |
1482 | } |
1483 | ||
1484 | s = bufptr; | |
a687059c LW |
1485 | oldoldbufptr = oldbufptr; |
1486 | oldbufptr = s; | |
79072805 | 1487 | DEBUG_p( { |
760ac839 | 1488 | PerlIO_printf(PerlIO_stderr(), "### Tokener expecting %s at %s\n", exp_name[expect], s); |
79072805 | 1489 | } ) |
463ee0b2 LW |
1490 | |
1491 | retry: | |
378cc40b LW |
1492 | switch (*s) { |
1493 | default: | |
54310121 | 1494 | croak("Unrecognized character \\%03o", *s & 255); |
e929a76b LW |
1495 | case 4: |
1496 | case 26: | |
1497 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 1498 | case 0: |
463ee0b2 | 1499 | if (!rsfp) { |
55497cff | 1500 | last_uni = 0; |
1501 | last_lop = 0; | |
463ee0b2 LW |
1502 | if (lex_brackets) |
1503 | yyerror("Missing right bracket"); | |
79072805 | 1504 | TOKEN(0); |
463ee0b2 | 1505 | } |
a687059c LW |
1506 | if (s++ < bufend) |
1507 | goto retry; /* ignore stray nulls */ | |
2f3197b3 | 1508 | last_uni = 0; |
79072805 | 1509 | last_lop = 0; |
a0d0e21e | 1510 | if (!in_eval && !preambled) { |
79072805 | 1511 | preambled = TRUE; |
a0d0e21e | 1512 | sv_setpv(linestr,incl_perldb()); |
91b7def8 | 1513 | if (SvCUR(linestr)) |
1514 | sv_catpv(linestr,";"); | |
1515 | if (preambleav){ | |
1516 | while(AvFILL(preambleav) >= 0) { | |
1517 | SV *tmpsv = av_shift(preambleav); | |
1518 | sv_catsv(linestr, tmpsv); | |
1519 | sv_catpv(linestr, ";"); | |
1520 | sv_free(tmpsv); | |
1521 | } | |
1522 | sv_free((SV*)preambleav); | |
1523 | preambleav = NULL; | |
1524 | } | |
79072805 LW |
1525 | if (minus_n || minus_p) { |
1526 | sv_catpv(linestr, "LINE: while (<>) {"); | |
1527 | if (minus_l) | |
a0d0e21e | 1528 | sv_catpv(linestr,"chomp;"); |
8fd239a7 CS |
1529 | if (minus_a) { |
1530 | GV* gv = gv_fetchpv("::F", TRUE, SVt_PVAV); | |
1531 | if (gv) | |
1532 | GvIMPORTED_AV_on(gv); | |
1533 | if (minus_F) { | |
54310121 | 1534 | if (strchr("/'\"", *splitstr) |
1535 | && strchr(splitstr + 1, *splitstr)) | |
46fc3d4c | 1536 | sv_catpvf(linestr, "@F=split(%s);", splitstr); |
54310121 | 1537 | else { |
1538 | char delim; | |
1539 | s = "'~#\200\1'"; /* surely one char is unused...*/ | |
1540 | while (s[1] && strchr(splitstr, *s)) s++; | |
1541 | delim = *s; | |
46fc3d4c | 1542 | sv_catpvf(linestr, "@F=split(%s%c", |
1543 | "q" + (delim == '\''), delim); | |
1544 | for (s = splitstr; *s; s++) { | |
54310121 | 1545 | if (*s == '\\') |
46fc3d4c | 1546 | sv_catpvn(linestr, "\\", 1); |
1547 | sv_catpvn(linestr, s, 1); | |
54310121 | 1548 | } |
46fc3d4c | 1549 | sv_catpvf(linestr, "%c);", delim); |
54310121 | 1550 | } |
2304df62 AD |
1551 | } |
1552 | else | |
1553 | sv_catpv(linestr,"@F=split(' ');"); | |
1554 | } | |
79072805 | 1555 | } |
a0d0e21e | 1556 | sv_catpv(linestr, "\n"); |
fd049845 | 1557 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
463ee0b2 | 1558 | bufend = SvPVX(linestr) + SvCUR(linestr); |
84902520 | 1559 | if (PERLDB_LINE && curstash != debstash) { |
a0d0e21e LW |
1560 | SV *sv = NEWSV(85,0); |
1561 | ||
1562 | sv_upgrade(sv, SVt_PVMG); | |
1563 | sv_setsv(sv,linestr); | |
1564 | av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv); | |
1565 | } | |
79072805 | 1566 | goto retry; |
a687059c | 1567 | } |
e929a76b | 1568 | do { |
fd049845 | 1569 | if ((s = filter_gets(linestr, rsfp, 0)) == Nullch) { |
e929a76b | 1570 | fake_eof: |
395c3793 | 1571 | if (rsfp) { |
a0d0e21e | 1572 | if (preprocess && !in_eval) |
79072805 | 1573 | (void)my_pclose(rsfp); |
760ac839 LW |
1574 | else if ((PerlIO *)rsfp == PerlIO_stdin()) |
1575 | PerlIO_clearerr(rsfp); | |
395c3793 | 1576 | else |
760ac839 | 1577 | (void)PerlIO_close(rsfp); |
90248788 TB |
1578 | if (e_fp == rsfp) |
1579 | e_fp = Nullfp; | |
395c3793 LW |
1580 | rsfp = Nullfp; |
1581 | } | |
a0d0e21e | 1582 | if (!in_eval && (minus_n || minus_p)) { |
79072805 LW |
1583 | sv_setpv(linestr,minus_p ? ";}continue{print" : ""); |
1584 | sv_catpv(linestr,";}"); | |
fd049845 | 1585 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
463ee0b2 | 1586 | bufend = SvPVX(linestr) + SvCUR(linestr); |
e929a76b LW |
1587 | minus_n = minus_p = 0; |
1588 | goto retry; | |
1589 | } | |
fd049845 | 1590 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
79072805 LW |
1591 | sv_setpv(linestr,""); |
1592 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ | |
378cc40b | 1593 | } |
a0d0e21e LW |
1594 | if (doextract) { |
1595 | if (*s == '#' && s[1] == '!' && instr(s,"perl")) | |
1596 | doextract = FALSE; | |
1597 | ||
1598 | /* Incest with pod. */ | |
1599 | if (*s == '=' && strnEQ(s, "=cut", 4)) { | |
1600 | sv_setpv(linestr, ""); | |
fd049845 | 1601 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
a0d0e21e LW |
1602 | bufend = SvPVX(linestr) + SvCUR(linestr); |
1603 | doextract = FALSE; | |
1604 | } | |
1605 | } | |
463ee0b2 | 1606 | incline(s); |
e929a76b | 1607 | } while (doextract); |
fd049845 | 1608 | oldoldbufptr = oldbufptr = bufptr = linestart = s; |
84902520 | 1609 | if (PERLDB_LINE && curstash != debstash) { |
79072805 | 1610 | SV *sv = NEWSV(85,0); |
a687059c | 1611 | |
93a17b20 | 1612 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
1613 | sv_setsv(sv,linestr); |
1614 | av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv); | |
a687059c | 1615 | } |
463ee0b2 | 1616 | bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 LW |
1617 | if (curcop->cop_line == 1) { |
1618 | while (s < bufend && isSPACE(*s)) | |
1619 | s++; | |
a0d0e21e | 1620 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 1621 | s++; |
44a8e56a | 1622 | d = Nullch; |
1623 | if (!in_eval) { | |
1624 | if (*s == '#' && *(s+1) == '!') | |
1625 | d = s + 2; | |
1626 | #ifdef ALTERNATE_SHEBANG | |
1627 | else { | |
1628 | static char as[] = ALTERNATE_SHEBANG; | |
1629 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) | |
1630 | d = s + (sizeof(as) - 1); | |
1631 | } | |
1632 | #endif /* ALTERNATE_SHEBANG */ | |
1633 | } | |
1634 | if (d) { | |
b8378b72 | 1635 | char *ipath; |
774d564b | 1636 | char *ipathend; |
b8378b72 | 1637 | |
774d564b | 1638 | while (isSPACE(*d)) |
b8378b72 CS |
1639 | d++; |
1640 | ipath = d; | |
774d564b | 1641 | while (*d && !isSPACE(*d)) |
1642 | d++; | |
1643 | ipathend = d; | |
1644 | ||
1645 | #ifdef ARG_ZERO_IS_SCRIPT | |
1646 | if (ipathend > ipath) { | |
1647 | /* | |
1648 | * HP-UX (at least) sets argv[0] to the script name, | |
1649 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
1650 | * at least, set argv[0] to the basename of the Perl | |
1651 | * interpreter. So, having found "#!", we'll set it right. | |
1652 | */ | |
1653 | SV *x = GvSV(gv_fetchpv("\030", TRUE, SVt_PV)); | |
1654 | assert(SvPOK(x) || SvGMAGICAL(x)); | |
9607fc9c | 1655 | if (sv_eq(x, GvSV(curcop->cop_filegv))) { |
774d564b | 1656 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 1657 | SvSETMAGIC(x); |
1658 | } | |
774d564b | 1659 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 1660 | } |
774d564b | 1661 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
1662 | |
1663 | /* | |
1664 | * Look for options. | |
1665 | */ | |
748a9306 LW |
1666 | d = instr(s,"perl -"); |
1667 | if (!d) | |
1668 | d = instr(s,"perl"); | |
44a8e56a | 1669 | #ifdef ALTERNATE_SHEBANG |
1670 | /* | |
1671 | * If the ALTERNATE_SHEBANG on this system starts with a | |
1672 | * character that can be part of a Perl expression, then if | |
1673 | * we see it but not "perl", we're probably looking at the | |
1674 | * start of Perl code, not a request to hand off to some | |
1675 | * other interpreter. Similarly, if "perl" is there, but | |
1676 | * not in the first 'word' of the line, we assume the line | |
1677 | * contains the start of the Perl program. | |
44a8e56a | 1678 | */ |
1679 | if (d && *s != '#') { | |
774d564b | 1680 | char *c = ipath; |
44a8e56a | 1681 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
1682 | c++; | |
1683 | if (c < d) | |
1684 | d = Nullch; /* "perl" not in first word; ignore */ | |
1685 | else | |
1686 | *s = '#'; /* Don't try to parse shebang line */ | |
1687 | } | |
774d564b | 1688 | #endif /* ALTERNATE_SHEBANG */ |
748a9306 | 1689 | if (!d && |
44a8e56a | 1690 | *s == '#' && |
774d564b | 1691 | ipathend > ipath && |
748a9306 LW |
1692 | !minus_c && |
1693 | !instr(s,"indir") && | |
1694 | instr(origargv[0],"perl")) | |
1695 | { | |
9f68db38 | 1696 | char **newargv; |
9f68db38 | 1697 | |
774d564b | 1698 | *ipathend = '\0'; |
1699 | s = ipathend + 1; | |
de3bb511 | 1700 | while (s < bufend && isSPACE(*s)) |
9f68db38 LW |
1701 | s++; |
1702 | if (s < bufend) { | |
1703 | Newz(899,newargv,origargc+3,char*); | |
1704 | newargv[1] = s; | |
de3bb511 | 1705 | while (s < bufend && !isSPACE(*s)) |
9f68db38 LW |
1706 | s++; |
1707 | *s = '\0'; | |
1708 | Copy(origargv+1, newargv+2, origargc+1, char*); | |
1709 | } | |
1710 | else | |
1711 | newargv = origargv; | |
774d564b | 1712 | newargv[0] = ipath; |
1713 | execv(ipath, newargv); | |
1714 | croak("Can't exec %s", ipath); | |
9f68db38 | 1715 | } |
748a9306 | 1716 | if (d) { |
ba6d6ac9 CS |
1717 | U32 oldpdb = perldb; |
1718 | bool oldn = minus_n; | |
1719 | bool oldp = minus_p; | |
748a9306 LW |
1720 | |
1721 | while (*d && !isSPACE(*d)) d++; | |
89bfa8cd | 1722 | while (*d == ' ' || *d == '\t') d++; |
748a9306 LW |
1723 | |
1724 | if (*d++ == '-') { | |
8cc95fdb | 1725 | do { |
1726 | if (*d == 'M' || *d == 'm') { | |
1727 | char *m = d; | |
1728 | while (*d && !isSPACE(*d)) d++; | |
1729 | croak("Too late for \"-%.*s\" option", | |
1730 | (int)(d - m), m); | |
1731 | } | |
1732 | d = moreswitches(d); | |
1733 | } while (d); | |
84902520 | 1734 | if (PERLDB_LINE && !oldpdb || |
b084f20b | 1735 | ( minus_n || minus_p ) && !(oldn || oldp) ) |
1736 | /* if we have already added "LINE: while (<>) {", | |
1737 | we must not do it again */ | |
748a9306 LW |
1738 | { |
1739 | sv_setpv(linestr, ""); | |
fd049845 | 1740 | oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr); |
748a9306 LW |
1741 | bufend = SvPVX(linestr) + SvCUR(linestr); |
1742 | preambled = FALSE; | |
84902520 | 1743 | if (PERLDB_LINE) |
748a9306 LW |
1744 | (void)gv_fetchfile(origfilename); |
1745 | goto retry; | |
1746 | } | |
a0d0e21e | 1747 | } |
79072805 | 1748 | } |
9f68db38 | 1749 | } |
79072805 | 1750 | } |
85e6fe83 | 1751 | if (lex_formbrack && lex_brackets <= lex_formbrack) { |
a0d0e21e LW |
1752 | bufptr = s; |
1753 | lex_state = LEX_FORMLINE; | |
1754 | return yylex(); | |
ae986130 | 1755 | } |
378cc40b | 1756 | goto retry; |
4fdae800 | 1757 | case '\r': |
54310121 | 1758 | warn("Illegal character \\%03o (carriage return)", '\r'); |
1759 | croak( | |
1760 | "(Maybe you didn't strip carriage returns after a network transfer?)\n"); | |
4fdae800 | 1761 | case ' ': case '\t': case '\f': case 013: |
378cc40b LW |
1762 | s++; |
1763 | goto retry; | |
378cc40b | 1764 | case '#': |
e929a76b | 1765 | case '\n': |
79072805 | 1766 | if (lex_state != LEX_NORMAL || (in_eval && !rsfp)) { |
a687059c LW |
1767 | d = bufend; |
1768 | while (s < d && *s != '\n') | |
378cc40b | 1769 | s++; |
0f85fab0 | 1770 | if (s < d) |
378cc40b | 1771 | s++; |
463ee0b2 | 1772 | incline(s); |
85e6fe83 | 1773 | if (lex_formbrack && lex_brackets <= lex_formbrack) { |
a0d0e21e LW |
1774 | bufptr = s; |
1775 | lex_state = LEX_FORMLINE; | |
1776 | return yylex(); | |
a687059c | 1777 | } |
378cc40b | 1778 | } |
a687059c | 1779 | else { |
378cc40b | 1780 | *s = '\0'; |
a687059c LW |
1781 | bufend = s; |
1782 | } | |
378cc40b LW |
1783 | goto retry; |
1784 | case '-': | |
79072805 | 1785 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
378cc40b | 1786 | s++; |
748a9306 LW |
1787 | bufptr = s; |
1788 | tmp = *s++; | |
1789 | ||
1790 | while (s < bufend && (*s == ' ' || *s == '\t')) | |
1791 | s++; | |
1792 | ||
1793 | if (strnEQ(s,"=>",2)) { | |
1794 | if (dowarn) | |
1795 | warn("Ambiguous use of -%c => resolved to \"-%c\" =>", | |
ff0cee69 | 1796 | (int)tmp, (int)tmp); |
748a9306 LW |
1797 | s = force_word(bufptr,WORD,FALSE,FALSE,FALSE); |
1798 | OPERATOR('-'); /* unary minus */ | |
1799 | } | |
e334a159 | 1800 | last_uni = oldbufptr; |
a0d0e21e | 1801 | last_lop_op = OP_FTEREAD; /* good enough */ |
748a9306 | 1802 | switch (tmp) { |
79072805 LW |
1803 | case 'r': FTST(OP_FTEREAD); |
1804 | case 'w': FTST(OP_FTEWRITE); | |
1805 | case 'x': FTST(OP_FTEEXEC); | |
1806 | case 'o': FTST(OP_FTEOWNED); | |
1807 | case 'R': FTST(OP_FTRREAD); | |
1808 | case 'W': FTST(OP_FTRWRITE); | |
1809 | case 'X': FTST(OP_FTREXEC); | |
1810 | case 'O': FTST(OP_FTROWNED); | |
1811 | case 'e': FTST(OP_FTIS); | |
1812 | case 'z': FTST(OP_FTZERO); | |
1813 | case 's': FTST(OP_FTSIZE); | |
1814 | case 'f': FTST(OP_FTFILE); | |
1815 | case 'd': FTST(OP_FTDIR); | |
1816 | case 'l': FTST(OP_FTLINK); | |
1817 | case 'p': FTST(OP_FTPIPE); | |
1818 | case 'S': FTST(OP_FTSOCK); | |
1819 | case 'u': FTST(OP_FTSUID); | |
1820 | case 'g': FTST(OP_FTSGID); | |
1821 | case 'k': FTST(OP_FTSVTX); | |
1822 | case 'b': FTST(OP_FTBLK); | |
1823 | case 'c': FTST(OP_FTCHR); | |
1824 | case 't': FTST(OP_FTTTY); | |
1825 | case 'T': FTST(OP_FTTEXT); | |
1826 | case 'B': FTST(OP_FTBINARY); | |
85e6fe83 LW |
1827 | case 'M': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTMTIME); |
1828 | case 'A': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTATIME); | |
1829 | case 'C': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTCTIME); | |
378cc40b | 1830 | default: |
ff0cee69 | 1831 | croak("Unrecognized file test: -%c", (int)tmp); |
378cc40b LW |
1832 | break; |
1833 | } | |
1834 | } | |
a687059c LW |
1835 | tmp = *s++; |
1836 | if (*s == tmp) { | |
1837 | s++; | |
79072805 LW |
1838 | if (expect == XOPERATOR) |
1839 | TERM(POSTDEC); | |
1840 | else | |
1841 | OPERATOR(PREDEC); | |
1842 | } | |
1843 | else if (*s == '>') { | |
1844 | s++; | |
1845 | s = skipspace(s); | |
1846 | if (isIDFIRST(*s)) { | |
a0d0e21e | 1847 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); |
463ee0b2 | 1848 | TOKEN(ARROW); |
79072805 | 1849 | } |
748a9306 LW |
1850 | else if (*s == '$') |
1851 | OPERATOR(ARROW); | |
463ee0b2 | 1852 | else |
748a9306 | 1853 | TERM(ARROW); |
a687059c | 1854 | } |
79072805 LW |
1855 | if (expect == XOPERATOR) |
1856 | Aop(OP_SUBTRACT); | |
1857 | else { | |
2f3197b3 LW |
1858 | if (isSPACE(*s) || !isSPACE(*bufptr)) |
1859 | check_uni(); | |
79072805 | 1860 | OPERATOR('-'); /* unary minus */ |
2f3197b3 | 1861 | } |
79072805 | 1862 | |
378cc40b | 1863 | case '+': |
a687059c LW |
1864 | tmp = *s++; |
1865 | if (*s == tmp) { | |
378cc40b | 1866 | s++; |
79072805 LW |
1867 | if (expect == XOPERATOR) |
1868 | TERM(POSTINC); | |
1869 | else | |
1870 | OPERATOR(PREINC); | |
378cc40b | 1871 | } |
79072805 LW |
1872 | if (expect == XOPERATOR) |
1873 | Aop(OP_ADD); | |
1874 | else { | |
2f3197b3 LW |
1875 | if (isSPACE(*s) || !isSPACE(*bufptr)) |
1876 | check_uni(); | |
a687059c | 1877 | OPERATOR('+'); |
2f3197b3 | 1878 | } |
a687059c | 1879 | |
378cc40b | 1880 | case '*': |
79072805 | 1881 | if (expect != XOPERATOR) { |
8903cb82 | 1882 | s = scan_ident(s, bufend, tokenbuf, sizeof tokenbuf, TRUE); |
463ee0b2 | 1883 | expect = XOPERATOR; |
a0d0e21e LW |
1884 | force_ident(tokenbuf, '*'); |
1885 | if (!*tokenbuf) | |
1886 | PREREF('*'); | |
79072805 | 1887 | TERM('*'); |
a687059c | 1888 | } |
79072805 LW |
1889 | s++; |
1890 | if (*s == '*') { | |
a687059c | 1891 | s++; |
79072805 | 1892 | PWop(OP_POW); |
a687059c | 1893 | } |
79072805 LW |
1894 | Mop(OP_MULTIPLY); |
1895 | ||
378cc40b | 1896 | case '%': |
bbce6d69 | 1897 | if (expect == XOPERATOR) { |
1898 | ++s; | |
1899 | Mop(OP_MODULO); | |
a687059c | 1900 | } |
bbce6d69 | 1901 | tokenbuf[0] = '%'; |
8903cb82 | 1902 | s = scan_ident(s, bufend, tokenbuf + 1, sizeof tokenbuf - 1, TRUE); |
bbce6d69 | 1903 | if (!tokenbuf[1]) { |
1904 | if (s == bufend) | |
1905 | yyerror("Final % should be \\% or %name"); | |
1906 | PREREF('%'); | |
a687059c | 1907 | } |
bbce6d69 | 1908 | pending_ident = '%'; |
1909 | TERM('%'); | |
a687059c | 1910 | |
378cc40b | 1911 | case '^': |
79072805 | 1912 | s++; |
a0d0e21e | 1913 | BOop(OP_BIT_XOR); |
79072805 LW |
1914 | case '[': |
1915 | lex_brackets++; | |
1916 | /* FALL THROUGH */ | |
378cc40b | 1917 | case '~': |
378cc40b | 1918 | case ',': |
378cc40b LW |
1919 | tmp = *s++; |
1920 | OPERATOR(tmp); | |
a0d0e21e LW |
1921 | case ':': |
1922 | if (s[1] == ':') { | |
1923 | len = 0; | |
1924 | goto just_a_word; | |
1925 | } | |
1926 | s++; | |
1927 | OPERATOR(':'); | |
8990e307 LW |
1928 | case '(': |
1929 | s++; | |
a0d0e21e | 1930 | if (last_lop == oldoldbufptr || last_uni == oldoldbufptr) |
8990e307 | 1931 | oldbufptr = oldoldbufptr; /* allow print(STDOUT 123) */ |
a0d0e21e LW |
1932 | else |
1933 | expect = XTERM; | |
1934 | TOKEN('('); | |
378cc40b | 1935 | case ';': |
79072805 LW |
1936 | if (curcop->cop_line < copline) |
1937 | copline = curcop->cop_line; | |
378cc40b LW |
1938 | tmp = *s++; |
1939 | OPERATOR(tmp); | |
1940 | case ')': | |
378cc40b | 1941 | tmp = *s++; |
16d20bd9 AD |
1942 | s = skipspace(s); |
1943 | if (*s == '{') | |
1944 | PREBLOCK(tmp); | |
378cc40b | 1945 | TERM(tmp); |
79072805 LW |
1946 | case ']': |
1947 | s++; | |
463ee0b2 LW |
1948 | if (lex_brackets <= 0) |
1949 | yyerror("Unmatched right bracket"); | |
1950 | else | |
1951 | --lex_brackets; | |
79072805 | 1952 | if (lex_state == LEX_INTERPNORMAL) { |
463ee0b2 | 1953 | if (lex_brackets == 0) { |
a0d0e21e | 1954 | if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>')) |
79072805 LW |
1955 | lex_state = LEX_INTERPEND; |
1956 | } | |
1957 | } | |
4633a7c4 | 1958 | TERM(']'); |
79072805 LW |
1959 | case '{': |
1960 | leftbracket: | |
79072805 | 1961 | s++; |
8990e307 | 1962 | if (lex_brackets > 100) { |
89bfa8cd | 1963 | char* newlb = Renew(lex_brackstack, lex_brackets + 1, char); |
8990e307 LW |
1964 | if (newlb != lex_brackstack) { |
1965 | SAVEFREEPV(newlb); | |
1966 | lex_brackstack = newlb; | |
1967 | } | |
1968 | } | |
a0d0e21e LW |
1969 | switch (expect) { |
1970 | case XTERM: | |
1971 | if (lex_formbrack) { | |
1972 | s--; | |
1973 | PRETERMBLOCK(DO); | |
1974 | } | |
1975 | if (oldoldbufptr == last_lop) | |
1976 | lex_brackstack[lex_brackets++] = XTERM; | |
1977 | else | |
1978 | lex_brackstack[lex_brackets++] = XOPERATOR; | |
79072805 | 1979 | OPERATOR(HASHBRACK); |
a0d0e21e | 1980 | case XOPERATOR: |
748a9306 LW |
1981 | while (s < bufend && (*s == ' ' || *s == '\t')) |
1982 | s++; | |
44a8e56a | 1983 | d = s; |
1984 | tokenbuf[0] = '\0'; | |
1985 | if (d < bufend && *d == '-') { | |
1986 | tokenbuf[0] = '-'; | |
1987 | d++; | |
1988 | while (d < bufend && (*d == ' ' || *d == '\t')) | |
1989 | d++; | |
1990 | } | |
1991 | if (d < bufend && isIDFIRST(*d)) { | |
8903cb82 | 1992 | d = scan_word(d, tokenbuf + 1, sizeof tokenbuf - 1, |
1993 | FALSE, &len); | |
748a9306 LW |
1994 | while (d < bufend && (*d == ' ' || *d == '\t')) |
1995 | d++; | |
1996 | if (*d == '}') { | |
44a8e56a | 1997 | char minus = (tokenbuf[0] == '-'); |
748a9306 | 1998 | if (dowarn && |
44a8e56a | 1999 | (keyword(tokenbuf + 1, len) || |
2000 | (minus && len == 1 && isALPHA(tokenbuf[1])) || | |
2001 | perl_get_cv(tokenbuf + 1, FALSE) )) | |
748a9306 | 2002 | warn("Ambiguous use of {%s} resolved to {\"%s\"}", |
44a8e56a | 2003 | tokenbuf + !minus, tokenbuf + !minus); |
2004 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); | |
2005 | if (minus) | |
2006 | force_next('-'); | |
748a9306 LW |
2007 | } |
2008 | } | |
2009 | /* FALL THROUGH */ | |
2010 | case XBLOCK: | |
a0d0e21e | 2011 | lex_brackstack[lex_brackets++] = XSTATE; |
2304df62 | 2012 | expect = XSTATE; |
a0d0e21e LW |
2013 | break; |
2014 | case XTERMBLOCK: | |
2015 | lex_brackstack[lex_brackets++] = XOPERATOR; | |
2016 | expect = XSTATE; | |
2017 | break; | |
2018 | default: { | |
2019 | char *t; | |
2020 | if (oldoldbufptr == last_lop) | |
2021 | lex_brackstack[lex_brackets++] = XTERM; | |
2022 | else | |
2023 | lex_brackstack[lex_brackets++] = XOPERATOR; | |
2024 | s = skipspace(s); | |
2025 | if (*s == '}') | |
2026 | OPERATOR(HASHBRACK); | |
b8a4b1be GS |
2027 | /* This hack serves to disambiguate a pair of curlies |
2028 | * as being a block or an anon hash. Normally, expectation | |
2029 | * determines that, but in cases where we're not in a | |
2030 | * position to expect anything in particular (like inside | |
2031 | * eval"") we have to resolve the ambiguity. This code | |
2032 | * covers the case where the first term in the curlies is a | |
2033 | * quoted string. Most other cases need to be explicitly | |
2034 | * disambiguated by prepending a `+' before the opening | |
2035 | * curly in order to force resolution as an anon hash. | |
2036 | * | |
2037 | * XXX should probably propagate the outer expectation | |
2038 | * into eval"" to rely less on this hack, but that could | |
2039 | * potentially break current behavior of eval"". | |
2040 | * GSAR 97-07-21 | |
2041 | */ | |
2042 | t = s; | |
2043 | if (*s == '\'' || *s == '"' || *s == '`') { | |
2044 | /* common case: get past first string, handling escapes */ | |
2045 | for (t++; t < bufend && *t != *s;) | |
2046 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) | |
2047 | t++; | |
2048 | t++; | |
a0d0e21e | 2049 | } |
b8a4b1be GS |
2050 | else if (*s == 'q') { |
2051 | if (++t < bufend | |
2052 | && (!isALNUM(*t) | |
2053 | || ((*t == 'q' || *t == 'x') && ++t < bufend | |
2054 | && !isALNUM(*t)))) { | |
2055 | char *tmps; | |
2056 | char open, close, term; | |
2057 | I32 brackets = 1; | |
2058 | ||
2059 | while (t < bufend && isSPACE(*t)) | |
2060 | t++; | |
2061 | term = *t; | |
2062 | open = term; | |
2063 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
2064 | term = tmps[5]; | |
2065 | close = term; | |
2066 | if (open == close) | |
2067 | for (t++; t < bufend; t++) { | |
6d07e5e9 | 2068 | if (*t == '\\' && t+1 < bufend && open != '\\') |
b8a4b1be | 2069 | t++; |
6d07e5e9 | 2070 | else if (*t == open) |
b8a4b1be GS |
2071 | break; |
2072 | } | |
2073 | else | |
2074 | for (t++; t < bufend; t++) { | |
6d07e5e9 | 2075 | if (*t == '\\' && t+1 < bufend) |
b8a4b1be | 2076 | t++; |
6d07e5e9 | 2077 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
2078 | break; |
2079 | else if (*t == open) | |
2080 | brackets++; | |
2081 | } | |
2082 | } | |
2083 | t++; | |
a0d0e21e | 2084 | } |
b8a4b1be GS |
2085 | else if (isALPHA(*s)) { |
2086 | for (t++; t < bufend && isALNUM(*t); t++) ; | |
a0d0e21e | 2087 | } |
a0d0e21e LW |
2088 | while (t < bufend && isSPACE(*t)) |
2089 | t++; | |
b8a4b1be GS |
2090 | /* if comma follows first term, call it an anon hash */ |
2091 | /* XXX it could be a comma expression with loop modifiers */ | |
2092 | if (t < bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) | |
2093 | || (*t == '=' && t[1] == '>'))) | |
a0d0e21e LW |
2094 | OPERATOR(HASHBRACK); |
2095 | if (expect == XREF) | |
2096 | expect = XTERM; | |
2097 | else { | |
2098 | lex_brackstack[lex_brackets-1] = XSTATE; | |
2099 | expect = XSTATE; | |
2100 | } | |
8990e307 | 2101 | } |
a0d0e21e | 2102 | break; |
463ee0b2 | 2103 | } |
79072805 LW |
2104 | yylval.ival = curcop->cop_line; |
2105 | if (isSPACE(*s) || *s == '#') | |
2106 | copline = NOLINE; /* invalidate current command line number */ | |
79072805 | 2107 | TOKEN('{'); |
378cc40b | 2108 | case '}': |
79072805 LW |
2109 | rightbracket: |
2110 | s++; | |
463ee0b2 LW |
2111 | if (lex_brackets <= 0) |
2112 | yyerror("Unmatched right bracket"); | |
2113 | else | |
2114 | expect = (expectation)lex_brackstack[--lex_brackets]; | |
85e6fe83 LW |
2115 | if (lex_brackets < lex_formbrack) |
2116 | lex_formbrack = 0; | |
79072805 | 2117 | if (lex_state == LEX_INTERPNORMAL) { |
463ee0b2 | 2118 | if (lex_brackets == 0) { |
79072805 LW |
2119 | if (lex_fakebrack) { |
2120 | lex_state = LEX_INTERPEND; | |
2121 | bufptr = s; | |
2122 | return yylex(); /* ignore fake brackets */ | |
2123 | } | |
fa83b5b6 | 2124 | if (*s == '-' && s[1] == '>') |
2125 | lex_state = LEX_INTERPENDMAYBE; | |
2126 | else if (*s != '[' && *s != '{') | |
79072805 LW |
2127 | lex_state = LEX_INTERPEND; |
2128 | } | |
2129 | } | |
748a9306 LW |
2130 | if (lex_brackets < lex_fakebrack) { |
2131 | bufptr = s; | |
2132 | lex_fakebrack = 0; | |
2133 | return yylex(); /* ignore fake brackets */ | |
2134 | } | |
79072805 LW |
2135 | force_next('}'); |
2136 | TOKEN(';'); | |
378cc40b LW |
2137 | case '&': |
2138 | s++; | |
2139 | tmp = *s++; | |
2140 | if (tmp == '&') | |
a0d0e21e | 2141 | AOPERATOR(ANDAND); |
378cc40b | 2142 | s--; |
463ee0b2 | 2143 | if (expect == XOPERATOR) { |
fd049845 | 2144 | if (dowarn && isALPHA(*s) && bufptr == linestart) { |
463ee0b2 LW |
2145 | curcop->cop_line--; |
2146 | warn(warn_nosemi); | |
2147 | curcop->cop_line++; | |
2148 | } | |
79072805 | 2149 | BAop(OP_BIT_AND); |
463ee0b2 | 2150 | } |
79072805 | 2151 | |
8903cb82 | 2152 | s = scan_ident(s - 1, bufend, tokenbuf, sizeof tokenbuf, TRUE); |
463ee0b2 LW |
2153 | if (*tokenbuf) { |
2154 | expect = XOPERATOR; | |
a0d0e21e | 2155 | force_ident(tokenbuf, '&'); |
463ee0b2 | 2156 | } |
79072805 LW |
2157 | else |
2158 | PREREF('&'); | |
c07a80fd | 2159 | yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
2160 | TERM('&'); |
2161 | ||
378cc40b LW |
2162 | case '|': |
2163 | s++; | |
2164 | tmp = *s++; | |
2165 | if (tmp == '|') | |
a0d0e21e | 2166 | AOPERATOR(OROR); |
378cc40b | 2167 | s--; |
79072805 | 2168 | BOop(OP_BIT_OR); |
378cc40b LW |
2169 | case '=': |
2170 | s++; | |
2171 | tmp = *s++; | |
2172 | if (tmp == '=') | |
79072805 LW |
2173 | Eop(OP_EQ); |
2174 | if (tmp == '>') | |
2175 | OPERATOR(','); | |
378cc40b | 2176 | if (tmp == '~') |
79072805 | 2177 | PMop(OP_MATCH); |
463ee0b2 | 2178 | if (dowarn && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp)) |
ff0cee69 | 2179 | warn("Reversed %c= operator",(int)tmp); |
378cc40b | 2180 | s--; |
748a9306 | 2181 | if (expect == XSTATE && isALPHA(tmp) && |
fd049845 | 2182 | (s == linestart+1 || s[-2] == '\n') ) |
748a9306 | 2183 | { |
a5f75d66 AD |
2184 | if (in_eval && !rsfp) { |
2185 | d = bufend; | |
2186 | while (s < d) { | |
2187 | if (*s++ == '\n') { | |
2188 | incline(s); | |
2189 | if (strnEQ(s,"=cut",4)) { | |
2190 | s = strchr(s,'\n'); | |
2191 | if (s) | |
2192 | s++; | |
2193 | else | |
2194 | s = d; | |
2195 | incline(s); | |
2196 | goto retry; | |
2197 | } | |
2198 | } | |
2199 | } | |
2200 | goto retry; | |
2201 | } | |
a0d0e21e LW |
2202 | s = bufend; |
2203 | doextract = TRUE; | |
2204 | goto retry; | |
2205 | } | |
2206 | if (lex_brackets < lex_formbrack) { | |
2207 | char *t; | |
2208 | for (t = s; *t == ' ' || *t == '\t'; t++) ; | |
2209 | if (*t == '\n' || *t == '#') { | |
2210 | s--; | |
2211 | expect = XBLOCK; | |
2212 | goto leftbracket; | |
2213 | } | |
79072805 | 2214 | } |
a0d0e21e LW |
2215 | yylval.ival = 0; |
2216 | OPERATOR(ASSIGNOP); | |
378cc40b LW |
2217 | case '!': |
2218 | s++; | |
2219 | tmp = *s++; | |
2220 | if (tmp == '=') | |
79072805 | 2221 | Eop(OP_NE); |
378cc40b | 2222 | if (tmp == '~') |
79072805 | 2223 | PMop(OP_NOT); |
378cc40b LW |
2224 | s--; |
2225 | OPERATOR('!'); | |
2226 | case '<': | |
79072805 | 2227 | if (expect != XOPERATOR) { |
93a17b20 | 2228 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 2229 | check_uni(); |
79072805 LW |
2230 | if (s[1] == '<') |
2231 | s = scan_heredoc(s); | |
2232 | else | |
2233 | s = scan_inputsymbol(s); | |
2234 | TERM(sublex_start()); | |
378cc40b LW |
2235 | } |
2236 | s++; | |
2237 | tmp = *s++; | |
2238 | if (tmp == '<') | |
79072805 | 2239 | SHop(OP_LEFT_SHIFT); |
395c3793 LW |
2240 | if (tmp == '=') { |
2241 | tmp = *s++; | |
2242 | if (tmp == '>') | |
79072805 | 2243 | Eop(OP_NCMP); |
395c3793 | 2244 | s--; |
79072805 | 2245 | Rop(OP_LE); |
395c3793 | 2246 | } |
378cc40b | 2247 | s--; |
79072805 | 2248 | Rop(OP_LT); |
378cc40b LW |
2249 | case '>': |
2250 | s++; | |
2251 | tmp = *s++; | |
2252 | if (tmp == '>') | |
79072805 | 2253 | SHop(OP_RIGHT_SHIFT); |
378cc40b | 2254 | if (tmp == '=') |
79072805 | 2255 | Rop(OP_GE); |
378cc40b | 2256 | s--; |
79072805 | 2257 | Rop(OP_GT); |
378cc40b LW |
2258 | |
2259 | case '$': | |
bbce6d69 | 2260 | CLINE; |
2261 | ||
8990e307 | 2262 | if (expect == XOPERATOR) { |
a0d0e21e LW |
2263 | if (lex_formbrack && lex_brackets == lex_formbrack) { |
2264 | expect = XTERM; | |
2265 | depcom(); | |
bbce6d69 | 2266 | return ','; /* grandfather non-comma-format format */ |
a0d0e21e | 2267 | } |
8990e307 | 2268 | } |
a0d0e21e | 2269 | |
bbce6d69 | 2270 | if (s[1] == '#' && (isALPHA(s[2]) || strchr("_{$:", s[2]))) { |
2271 | if (expect == XOPERATOR) | |
2272 | no_op("Array length", bufptr); | |
2273 | tokenbuf[0] = '@'; | |
8903cb82 | 2274 | s = scan_ident(s + 1, bufend, tokenbuf + 1, sizeof tokenbuf - 1, |
2275 | FALSE); | |
bbce6d69 | 2276 | if (!tokenbuf[1]) |
a0d0e21e | 2277 | PREREF(DOLSHARP); |
463ee0b2 | 2278 | expect = XOPERATOR; |
bbce6d69 | 2279 | pending_ident = '#'; |
463ee0b2 | 2280 | TOKEN(DOLSHARP); |
79072805 | 2281 | } |
bbce6d69 | 2282 | |
2283 | if (expect == XOPERATOR) | |
2284 | no_op("Scalar", bufptr); | |
2285 | tokenbuf[0] = '$'; | |
8903cb82 | 2286 | s = scan_ident(s, bufend, tokenbuf + 1, sizeof tokenbuf - 1, FALSE); |
bbce6d69 | 2287 | if (!tokenbuf[1]) { |
2288 | if (s == bufend) | |
2289 | yyerror("Final $ should be \\$ or $name"); | |
2290 | PREREF('$'); | |
8990e307 | 2291 | } |
a0d0e21e | 2292 | |
bbce6d69 | 2293 | /* This kludge not intended to be bulletproof. */ |
2294 | if (tokenbuf[1] == '[' && !tokenbuf[2]) { | |
2295 | yylval.opval = newSVOP(OP_CONST, 0, | |
2296 | newSViv((IV)compiling.cop_arybase)); | |
2297 | yylval.opval->op_private = OPpCONST_ARYBASE; | |
2298 | TERM(THING); | |
2299 | } | |
2300 | ||
ff68c719 | 2301 | d = s; |
2302 | if (lex_state == LEX_NORMAL) | |
2303 | s = skipspace(s); | |
2304 | ||
bbce6d69 | 2305 | if ((expect != XREF || oldoldbufptr == last_lop) && intuit_more(s)) { |
2306 | char *t; | |
2307 | if (*s == '[') { | |
2308 | tokenbuf[0] = '@'; | |
2309 | if (dowarn) { | |
2310 | for(t = s + 1; | |
2311 | isSPACE(*t) || isALNUM(*t) || *t == '$'; | |
2312 | t++) ; | |
a0d0e21e LW |
2313 | if (*t++ == ',') { |
2314 | bufptr = skipspace(bufptr); | |
bbce6d69 | 2315 | while (t < bufend && *t != ']') |
2316 | t++; | |
a0d0e21e | 2317 | warn("Multidimensional syntax %.*s not supported", |
bbce6d69 | 2318 | (t - bufptr) + 1, bufptr); |
a0d0e21e LW |
2319 | } |
2320 | } | |
bbce6d69 | 2321 | } |
2322 | else if (*s == '{') { | |
2323 | tokenbuf[0] = '%'; | |
2324 | if (dowarn && strEQ(tokenbuf+1, "SIG") && | |
2325 | (t = strchr(s, '}')) && (t = strchr(t, '='))) | |
2326 | { | |
8903cb82 | 2327 | char tmpbuf[sizeof tokenbuf]; |
a0d0e21e LW |
2328 | STRLEN len; |
2329 | for (t++; isSPACE(*t); t++) ; | |
748a9306 | 2330 | if (isIDFIRST(*t)) { |
8903cb82 | 2331 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, &len); |
748a9306 LW |
2332 | if (*t != '(' && perl_get_cv(tmpbuf, FALSE)) |
2333 | warn("You need to quote \"%s\"", tmpbuf); | |
2334 | } | |
93a17b20 LW |
2335 | } |
2336 | } | |
2f3197b3 | 2337 | } |
bbce6d69 | 2338 | |
2339 | expect = XOPERATOR; | |
ff68c719 | 2340 | if (lex_state == LEX_NORMAL && isSPACE(*d)) { |
bbce6d69 | 2341 | bool islop = (last_lop == oldoldbufptr); |
bbce6d69 | 2342 | if (!islop || last_lop_op == OP_GREPSTART) |
2343 | expect = XOPERATOR; | |
2344 | else if (strchr("$@\"'`q", *s)) | |
2345 | expect = XTERM; /* e.g. print $fh "foo" */ | |
2346 | else if (strchr("&*<%", *s) && isIDFIRST(s[1])) | |
2347 | expect = XTERM; /* e.g. print $fh &sub */ | |
68dc0745 | 2348 | else if (isIDFIRST(*s)) { |
8903cb82 | 2349 | char tmpbuf[sizeof tokenbuf]; |
2350 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); | |
84902520 TB |
2351 | if (tmp = keyword(tmpbuf, len)) { |
2352 | /* binary operators exclude handle interpretations */ | |
2353 | switch (tmp) { | |
2354 | case -KEY_x: | |
2355 | case -KEY_eq: | |
2356 | case -KEY_ne: | |
2357 | case -KEY_gt: | |
2358 | case -KEY_lt: | |
2359 | case -KEY_ge: | |
2360 | case -KEY_le: | |
2361 | case -KEY_cmp: | |
2362 | break; | |
2363 | default: | |
2364 | expect = XTERM; /* e.g. print $fh length() */ | |
2365 | break; | |
2366 | } | |
2367 | } | |
68dc0745 | 2368 | else { |
2369 | GV *gv = gv_fetchpv(tmpbuf, FALSE, SVt_PVCV); | |
2370 | if (gv && GvCVu(gv)) | |
2371 | expect = XTERM; /* e.g. print $fh subr() */ | |
93a17b20 | 2372 | } |
93a17b20 | 2373 | } |
bbce6d69 | 2374 | else if (isDIGIT(*s)) |
2375 | expect = XTERM; /* e.g. print $fh 3 */ | |
2376 | else if (*s == '.' && isDIGIT(s[1])) | |
2377 | expect = XTERM; /* e.g. print $fh .3 */ | |
2378 | else if (strchr("/?-+", *s) && !isSPACE(s[1])) | |
2379 | expect = XTERM; /* e.g. print $fh -1 */ | |
2380 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2])) | |
2381 | expect = XTERM; /* print $fh <<"EOF" */ | |
2382 | } | |
2383 | pending_ident = '$'; | |
79072805 | 2384 | TOKEN('$'); |
378cc40b LW |
2385 | |
2386 | case '@': | |
8990e307 | 2387 | if (expect == XOPERATOR) |
bbce6d69 | 2388 | no_op("Array", s); |
2389 | tokenbuf[0] = '@'; | |
8903cb82 | 2390 | s = scan_ident(s, bufend, tokenbuf + 1, sizeof tokenbuf - 1, FALSE); |
bbce6d69 | 2391 | if (!tokenbuf[1]) { |
2392 | if (s == bufend) | |
2393 | yyerror("Final @ should be \\@ or @name"); | |
2394 | PREREF('@'); | |
2395 | } | |
ff68c719 | 2396 | if (lex_state == LEX_NORMAL) |
2397 | s = skipspace(s); | |
bbce6d69 | 2398 | if ((expect != XREF || oldoldbufptr == last_lop) && intuit_more(s)) { |
2399 | if (*s == '{') | |
2400 | tokenbuf[0] = '%'; | |
a0d0e21e LW |
2401 | |
2402 | /* Warn about @ where they meant $. */ | |
2403 | if (dowarn) { | |
2404 | if (*s == '[' || *s == '{') { | |
2405 | char *t = s + 1; | |
2406 | while (*t && (isALNUM(*t) || strchr(" \t$#+-'\"", *t))) | |
2407 | t++; | |
2408 | if (*t == '}' || *t == ']') { | |
2409 | t++; | |
2410 | bufptr = skipspace(bufptr); | |
2411 | warn("Scalar value %.*s better written as $%.*s", | |
2412 | t-bufptr, bufptr, t-bufptr-1, bufptr+1); | |
2413 | } | |
93a17b20 LW |
2414 | } |
2415 | } | |
463ee0b2 | 2416 | } |
bbce6d69 | 2417 | pending_ident = '@'; |
79072805 | 2418 | TERM('@'); |
378cc40b LW |
2419 | |
2420 | case '/': /* may either be division or pattern */ | |
2421 | case '?': /* may either be conditional or pattern */ | |
79072805 | 2422 | if (expect != XOPERATOR) { |
2f3197b3 | 2423 | check_uni(); |
79072805 LW |
2424 | s = scan_pat(s); |
2425 | TERM(sublex_start()); | |
378cc40b LW |
2426 | } |
2427 | tmp = *s++; | |
a687059c | 2428 | if (tmp == '/') |
79072805 | 2429 | Mop(OP_DIVIDE); |
378cc40b LW |
2430 | OPERATOR(tmp); |
2431 | ||
2432 | case '.': | |
748a9306 | 2433 | if (lex_formbrack && lex_brackets == lex_formbrack && s[1] == '\n' && |
fd049845 | 2434 | (s == linestart || s[-1] == '\n') ) { |
85e6fe83 | 2435 | lex_formbrack = 0; |
8990e307 | 2436 | expect = XSTATE; |
79072805 LW |
2437 | goto rightbracket; |
2438 | } | |
2439 | if (expect == XOPERATOR || !isDIGIT(s[1])) { | |
378cc40b | 2440 | tmp = *s++; |
a687059c LW |
2441 | if (*s == tmp) { |
2442 | s++; | |
2f3197b3 LW |
2443 | if (*s == tmp) { |
2444 | s++; | |
79072805 | 2445 | yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
2446 | } |
2447 | else | |
79072805 | 2448 | yylval.ival = 0; |
378cc40b | 2449 | OPERATOR(DOTDOT); |
a687059c | 2450 | } |
79072805 | 2451 | if (expect != XOPERATOR) |
2f3197b3 | 2452 | check_uni(); |
79072805 | 2453 | Aop(OP_CONCAT); |
378cc40b LW |
2454 | } |
2455 | /* FALL THROUGH */ | |
2456 | case '0': case '1': case '2': case '3': case '4': | |
2457 | case '5': case '6': case '7': case '8': case '9': | |
79072805 | 2458 | s = scan_num(s); |
8990e307 LW |
2459 | if (expect == XOPERATOR) |
2460 | no_op("Number",s); | |
79072805 LW |
2461 | TERM(THING); |
2462 | ||
2463 | case '\'': | |
8990e307 | 2464 | s = scan_str(s); |
463ee0b2 | 2465 | if (expect == XOPERATOR) { |
a0d0e21e LW |
2466 | if (lex_formbrack && lex_brackets == lex_formbrack) { |
2467 | expect = XTERM; | |
2468 | depcom(); | |
2469 | return ','; /* grandfather non-comma-format format */ | |
2470 | } | |
463ee0b2 | 2471 | else |
8990e307 | 2472 | no_op("String",s); |
463ee0b2 | 2473 | } |
79072805 | 2474 | if (!s) |
85e6fe83 | 2475 | missingterm((char*)0); |
79072805 LW |
2476 | yylval.ival = OP_CONST; |
2477 | TERM(sublex_start()); | |
2478 | ||
2479 | case '"': | |
8990e307 | 2480 | s = scan_str(s); |
463ee0b2 | 2481 | if (expect == XOPERATOR) { |
a0d0e21e LW |
2482 | if (lex_formbrack && lex_brackets == lex_formbrack) { |
2483 | expect = XTERM; | |
2484 | depcom(); | |
2485 | return ','; /* grandfather non-comma-format format */ | |
2486 | } | |
463ee0b2 | 2487 | else |
8990e307 | 2488 | no_op("String",s); |
463ee0b2 | 2489 | } |
79072805 | 2490 | if (!s) |
85e6fe83 | 2491 | missingterm((char*)0); |
4633a7c4 LW |
2492 | yylval.ival = OP_CONST; |
2493 | for (d = SvPV(lex_stuff, len); len; len--, d++) { | |
2494 | if (*d == '$' || *d == '@' || *d == '\\') { | |
2495 | yylval.ival = OP_STRINGIFY; | |
2496 | break; | |
2497 | } | |
2498 | } | |
79072805 LW |
2499 | TERM(sublex_start()); |
2500 | ||
2501 | case '`': | |
2502 | s = scan_str(s); | |
8990e307 LW |
2503 | if (expect == XOPERATOR) |
2504 | no_op("Backticks",s); | |
79072805 | 2505 | if (!s) |
85e6fe83 | 2506 | missingterm((char*)0); |
79072805 LW |
2507 | yylval.ival = OP_BACKTICK; |
2508 | set_csh(); | |
2509 | TERM(sublex_start()); | |
2510 | ||
2511 | case '\\': | |
2512 | s++; | |
748a9306 LW |
2513 | if (dowarn && lex_inwhat && isDIGIT(*s)) |
2514 | warn("Can't use \\%c to mean $%c in expression", *s, *s); | |
8990e307 LW |
2515 | if (expect == XOPERATOR) |
2516 | no_op("Backslash",s); | |
79072805 LW |
2517 | OPERATOR(REFGEN); |
2518 | ||
2519 | case 'x': | |
2520 | if (isDIGIT(s[1]) && expect == XOPERATOR) { | |
2521 | s++; | |
2522 | Mop(OP_REPEAT); | |
2f3197b3 | 2523 | } |
79072805 LW |
2524 | goto keylookup; |
2525 | ||
378cc40b | 2526 | case '_': |
79072805 LW |
2527 | case 'a': case 'A': |
2528 | case 'b': case 'B': | |
2529 | case 'c': case 'C': | |
2530 | case 'd': case 'D': | |
2531 | case 'e': case 'E': | |
2532 | case 'f': case 'F': | |
2533 | case 'g': case 'G': | |
2534 | case 'h': case 'H': | |
2535 | case 'i': case 'I': | |
2536 | case 'j': case 'J': | |
2537 | case 'k': case 'K': | |
2538 | case 'l': case 'L': | |
2539 | case 'm': case 'M': | |
2540 | case 'n': case 'N': | |
2541 | case 'o': case 'O': | |
2542 | case 'p': case 'P': | |
2543 | case 'q': case 'Q': | |
2544 | case 'r': case 'R': | |
2545 | case 's': case 'S': | |
2546 | case 't': case 'T': | |
2547 | case 'u': case 'U': | |
2548 | case 'v': case 'V': | |
2549 | case 'w': case 'W': | |
2550 | case 'X': | |
2551 | case 'y': case 'Y': | |
2552 | case 'z': case 'Z': | |
2553 | ||
2554 | keylookup: | |
748a9306 | 2555 | bufptr = s; |
8903cb82 | 2556 | s = scan_word(s, tokenbuf, sizeof tokenbuf, FALSE, &len); |
8ebc5c01 | 2557 | |
2558 | /* Some keywords can be followed by any delimiter, including ':' */ | |
2559 | tmp = (len == 1 && strchr("msyq", tokenbuf[0]) || | |
2560 | len == 2 && ((tokenbuf[0] == 't' && tokenbuf[1] == 'r') || | |
2561 | (tokenbuf[0] == 'q' && | |
2562 | strchr("qwx", tokenbuf[1])))); | |
2563 | ||
2564 | /* x::* is just a word, unless x is "CORE" */ | |
2565 | if (!tmp && *s == ':' && s[1] == ':' && strNE(tokenbuf, "CORE")) | |
4633a7c4 LW |
2566 | goto just_a_word; |
2567 | ||
3643fb5f CS |
2568 | d = s; |
2569 | while (d < bufend && isSPACE(*d)) | |
2570 | d++; /* no comments skipped here, or s### is misparsed */ | |
2571 | ||
2572 | /* Is this a label? */ | |
8ebc5c01 | 2573 | if (!tmp && expect == XSTATE |
2574 | && d < bufend && *d == ':' && *(d + 1) != ':') { | |
2575 | s = d + 1; | |
2576 | yylval.pval = savepv(tokenbuf); | |
2577 | CLINE; | |
2578 | TOKEN(LABEL); | |
3643fb5f CS |
2579 | } |
2580 | ||
2581 | /* Check for keywords */ | |
a0d0e21e | 2582 | tmp = keyword(tokenbuf, len); |
748a9306 LW |
2583 | |
2584 | /* Is this a word before a => operator? */ | |
748a9306 LW |
2585 | if (strnEQ(d,"=>",2)) { |
2586 | CLINE; | |
2587 | if (dowarn && (tmp || perl_get_cv(tokenbuf, FALSE))) | |
2588 | warn("Ambiguous use of %s => resolved to \"%s\" =>", | |
2589 | tokenbuf, tokenbuf); | |
2590 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); | |
2591 | yylval.opval->op_private = OPpCONST_BARE; | |
2592 | TERM(WORD); | |
2593 | } | |
2594 | ||
a0d0e21e LW |
2595 | if (tmp < 0) { /* second-class keyword? */ |
2596 | GV* gv; | |
2597 | if (expect != XOPERATOR && | |
a5f75d66 AD |
2598 | (*s != ':' || s[1] != ':') && |
2599 | (gv = gv_fetchpv(tokenbuf, FALSE, SVt_PVCV)) && | |
2600 | GvIMPORTED_CV(gv)) | |
a0d0e21e LW |
2601 | { |
2602 | tmp = 0; | |
2603 | } | |
2604 | else | |
2605 | tmp = -tmp; | |
2606 | } | |
2607 | ||
2608 | reserved_word: | |
2609 | switch (tmp) { | |
79072805 LW |
2610 | |
2611 | default: /* not a keyword */ | |
93a17b20 LW |
2612 | just_a_word: { |
2613 | GV *gv; | |
96e4d5b1 | 2614 | SV *sv; |
748a9306 | 2615 | char lastchar = (bufptr == oldoldbufptr ? 0 : bufptr[-1]); |
8990e307 LW |
2616 | |
2617 | /* Get the rest if it looks like a package qualifier */ | |
2618 | ||
a0d0e21e | 2619 | if (*s == '\'' || *s == ':' && s[1] == ':') { |
8903cb82 | 2620 | s = scan_word(s, tokenbuf + len, sizeof tokenbuf - len, |
2621 | TRUE, &len); | |
a0d0e21e LW |
2622 | if (!len) |
2623 | croak("Bad name after %s::", tokenbuf); | |
2624 | } | |
8990e307 | 2625 | |
3643fb5f | 2626 | if (expect == XOPERATOR) { |
fd049845 | 2627 | if (bufptr == linestart) { |
463ee0b2 LW |
2628 | curcop->cop_line--; |
2629 | warn(warn_nosemi); | |
2630 | curcop->cop_line++; | |
2631 | } | |
2632 | else | |
54310121 | 2633 | no_op("Bareword",s); |
463ee0b2 | 2634 | } |
8990e307 LW |
2635 | |
2636 | /* Look for a subroutine with this name in current package. */ | |
2637 | ||
85e6fe83 | 2638 | gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV); |
8990e307 | 2639 | |
a0d0e21e LW |
2640 | /* Presume this is going to be a bareword of some sort. */ |
2641 | ||
2642 | CLINE; | |
2643 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0)); | |
2644 | yylval.opval->op_private = OPpCONST_BARE; | |
2645 | ||
8990e307 LW |
2646 | /* See if it's the indirect object for a list operator. */ |
2647 | ||
a0d0e21e LW |
2648 | if (oldoldbufptr && |
2649 | oldoldbufptr < bufptr && | |
2650 | (oldoldbufptr == last_lop || oldoldbufptr == last_uni) && | |
2651 | /* NO SKIPSPACE BEFORE HERE! */ | |
2652 | (expect == XREF || | |
2653 | (opargs[last_lop_op] >> OASHIFT & 7) == OA_FILEREF) ) | |
2654 | { | |
748a9306 LW |
2655 | bool immediate_paren = *s == '('; |
2656 | ||
a0d0e21e LW |
2657 | /* (Now we can afford to cross potential line boundary.) */ |
2658 | s = skipspace(s); | |
2659 | ||
2660 | /* Two barewords in a row may indicate method call. */ | |
2661 | ||
2662 | if ((isALPHA(*s) || *s == '$') && (tmp=intuit_method(s,gv))) | |
2663 | return tmp; | |
2664 | ||
2665 | /* If not a declared subroutine, it's an indirect object. */ | |
2666 | /* (But it's an indir obj regardless for sort.) */ | |
2667 | ||
8e07c86e | 2668 | if ((last_lop_op == OP_SORT || |
8ebc5c01 | 2669 | (!immediate_paren && (!gv || !GvCVu(gv))) ) && |
8e07c86e | 2670 | (last_lop_op != OP_MAPSTART && last_lop_op != OP_GREPSTART)){ |
748a9306 LW |
2671 | expect = (last_lop == oldoldbufptr) ? XTERM : XOPERATOR; |
2672 | goto bareword; | |
93a17b20 LW |
2673 | } |
2674 | } | |
8990e307 LW |
2675 | |
2676 | /* If followed by a paren, it's certainly a subroutine. */ | |
2677 | ||
2678 | expect = XOPERATOR; | |
2679 | s = skipspace(s); | |
93a17b20 | 2680 | if (*s == '(') { |
79072805 | 2681 | CLINE; |
96e4d5b1 | 2682 | if (gv && GvCVu(gv)) { |
2683 | for (d = s + 1; *d == ' ' || *d == '\t'; d++) ; | |
2684 | if (*d == ')' && (sv = cv_const_sv(GvCV(gv)))) { | |
2685 | s = d + 1; | |
2686 | goto its_constant; | |
2687 | } | |
2688 | } | |
a0d0e21e | 2689 | nextval[nexttoke].opval = yylval.opval; |
463ee0b2 | 2690 | expect = XOPERATOR; |
93a17b20 | 2691 | force_next(WORD); |
c07a80fd | 2692 | yylval.ival = 0; |
463ee0b2 | 2693 | TOKEN('&'); |
79072805 | 2694 | } |
93a17b20 | 2695 | |
a0d0e21e | 2696 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 2697 | |
8ebc5c01 | 2698 | if ((*s == '$' || *s == '{') && (!gv || !GvCVu(gv))) { |
463ee0b2 | 2699 | last_lop = oldbufptr; |
8990e307 | 2700 | last_lop_op = OP_METHOD; |
93a17b20 | 2701 | PREBLOCK(METHOD); |
463ee0b2 LW |
2702 | } |
2703 | ||
8990e307 LW |
2704 | /* If followed by a bareword, see if it looks like indir obj. */ |
2705 | ||
a0d0e21e LW |
2706 | if ((isALPHA(*s) || *s == '$') && (tmp = intuit_method(s,gv))) |
2707 | return tmp; | |
93a17b20 | 2708 | |
8990e307 LW |
2709 | /* Not a method, so call it a subroutine (if defined) */ |
2710 | ||
8ebc5c01 | 2711 | if (gv && GvCVu(gv)) { |
46fc3d4c | 2712 | CV* cv; |
748a9306 | 2713 | if (lastchar == '-') |
c2960299 | 2714 | warn("Ambiguous use of -%s resolved as -&%s()", |
748a9306 | 2715 | tokenbuf, tokenbuf); |
8990e307 | 2716 | last_lop = oldbufptr; |
a0d0e21e | 2717 | last_lop_op = OP_ENTERSUB; |
89bfa8cd | 2718 | /* Check for a constant sub */ |
46fc3d4c | 2719 | cv = GvCV(gv); |
96e4d5b1 | 2720 | if ((sv = cv_const_sv(cv))) { |
2721 | its_constant: | |
2722 | SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv); | |
2723 | ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc(sv); | |
2724 | yylval.opval->op_private = 0; | |
2725 | TOKEN(WORD); | |
89bfa8cd | 2726 | } |
2727 | ||
a5f75d66 AD |
2728 | /* Resolve to GV now. */ |
2729 | op_free(yylval.opval); | |
2730 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
4633a7c4 LW |
2731 | /* Is there a prototype? */ |
2732 | if (SvPOK(cv)) { | |
2733 | STRLEN len; | |
2734 | char *proto = SvPV((SV*)cv, len); | |
2735 | if (!len) | |
2736 | TERM(FUNC0SUB); | |
2737 | if (strEQ(proto, "$")) | |
2738 | OPERATOR(UNIOPSUB); | |
2739 | if (*proto == '&' && *s == '{') { | |
2740 | sv_setpv(subname,"__ANON__"); | |
2741 | PREBLOCK(LSTOPSUB); | |
2742 | } | |
2743 | } | |
a5f75d66 | 2744 | nextval[nexttoke].opval = yylval.opval; |
8990e307 LW |
2745 | expect = XTERM; |
2746 | force_next(WORD); | |
2747 | TOKEN(NOAMP); | |
2748 | } | |
748a9306 LW |
2749 | |
2750 | if (hints & HINT_STRICT_SUBS && | |
2751 | lastchar != '-' && | |
a0d0e21e | 2752 | strnNE(s,"->",2) && |
9b01e405 | 2753 | last_lop_op != OP_TRUNCATE && /* S/F prototype in opcode.pl */ |
a0d0e21e LW |
2754 | last_lop_op != OP_ACCEPT && |
2755 | last_lop_op != OP_PIPE_OP && | |
2756 | last_lop_op != OP_SOCKPAIR) | |
2757 | { | |
2758 | warn( | |
2759 | "Bareword \"%s\" not allowed while \"strict subs\" in use", | |
85e6fe83 LW |
2760 | tokenbuf); |
2761 | ++error_count; | |
2762 | } | |
8990e307 LW |
2763 | |
2764 | /* Call it a bare word */ | |
2765 | ||
748a9306 LW |
2766 | bareword: |
2767 | if (dowarn) { | |
2768 | if (lastchar != '-') { | |
2769 | for (d = tokenbuf; *d && isLOWER(*d); d++) ; | |
2770 | if (!*d) | |
2771 | warn(warn_reserved, tokenbuf); | |
2772 | } | |
2773 | } | |
2774 | if (lastchar && strchr("*%&", lastchar)) { | |
2775 | warn("Operator or semicolon missing before %c%s", | |
2776 | lastchar, tokenbuf); | |
c2960299 | 2777 | warn("Ambiguous use of %c resolved as operator %c", |
748a9306 LW |
2778 | lastchar, lastchar); |
2779 | } | |
93a17b20 | 2780 | TOKEN(WORD); |
79072805 | 2781 | } |
79072805 | 2782 | |
68dc0745 | 2783 | case KEY___FILE__: |
46fc3d4c | 2784 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
2785 | newSVsv(GvSV(curcop->cop_filegv))); | |
2786 | TERM(THING); | |
2787 | ||
79072805 | 2788 | case KEY___LINE__: |
46fc3d4c | 2789 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
2790 | newSVpvf("%ld", (long)curcop->cop_line)); | |
79072805 | 2791 | TERM(THING); |
68dc0745 | 2792 | |
2793 | case KEY___PACKAGE__: | |
2794 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, | |
2795 | (curstash | |
2796 | ? newSVsv(curstname) | |
2797 | : &sv_undef)); | |
79072805 | 2798 | TERM(THING); |
79072805 | 2799 | |
e50aee73 | 2800 | case KEY___DATA__: |
79072805 LW |
2801 | case KEY___END__: { |
2802 | GV *gv; | |
79072805 LW |
2803 | |
2804 | /*SUPPRESS 560*/ | |
a5f75d66 | 2805 | if (rsfp && (!in_eval || tokenbuf[2] == 'D')) { |
e50aee73 AD |
2806 | char *pname = "main"; |
2807 | if (tokenbuf[2] == 'D') | |
2808 | pname = HvNAME(curstash ? curstash : defstash); | |
46fc3d4c | 2809 | gv = gv_fetchpv(form("%s::DATA", pname), TRUE, SVt_PVIO); |
a5f75d66 | 2810 | GvMULTI_on(gv); |
79072805 | 2811 | if (!GvIO(gv)) |
a0d0e21e LW |
2812 | GvIOp(gv) = newIO(); |
2813 | IoIFP(GvIOp(gv)) = rsfp; | |
2814 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
2815 | { | |
760ac839 | 2816 | int fd = PerlIO_fileno(rsfp); |
a0d0e21e LW |
2817 | fcntl(fd,F_SETFD,fd >= 3); |
2818 | } | |
79072805 | 2819 | #endif |
fd049845 | 2820 | /* Mark this internal pseudo-handle as clean */ |
2821 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
79072805 | 2822 | if (preprocess) |
a0d0e21e | 2823 | IoTYPE(GvIOp(gv)) = '|'; |
760ac839 | 2824 | else if ((PerlIO*)rsfp == PerlIO_stdin()) |
a0d0e21e | 2825 | IoTYPE(GvIOp(gv)) = '-'; |
79072805 | 2826 | else |
a0d0e21e | 2827 | IoTYPE(GvIOp(gv)) = '<'; |
79072805 LW |
2828 | rsfp = Nullfp; |
2829 | } | |
2830 | goto fake_eof; | |
e929a76b | 2831 | } |
de3bb511 | 2832 | |
8990e307 | 2833 | case KEY_AUTOLOAD: |
ed6116ce | 2834 | case KEY_DESTROY: |
79072805 LW |
2835 | case KEY_BEGIN: |
2836 | case KEY_END: | |
7d07dbc2 | 2837 | case KEY_INIT: |
a0d0e21e | 2838 | if (expect == XSTATE) { |
93a17b20 LW |
2839 | s = bufptr; |
2840 | goto really_sub; | |
79072805 LW |
2841 | } |
2842 | goto just_a_word; | |
2843 | ||
a0d0e21e LW |
2844 | case KEY_CORE: |
2845 | if (*s == ':' && s[1] == ':') { | |
2846 | s += 2; | |
748a9306 | 2847 | d = s; |
8903cb82 | 2848 | s = scan_word(s, tokenbuf, sizeof tokenbuf, FALSE, &len); |
a0d0e21e LW |
2849 | tmp = keyword(tokenbuf, len); |
2850 | if (tmp < 0) | |
2851 | tmp = -tmp; | |
2852 | goto reserved_word; | |
2853 | } | |
2854 | goto just_a_word; | |
2855 | ||
463ee0b2 LW |
2856 | case KEY_abs: |
2857 | UNI(OP_ABS); | |
2858 | ||
79072805 LW |
2859 | case KEY_alarm: |
2860 | UNI(OP_ALARM); | |
2861 | ||
2862 | case KEY_accept: | |
a0d0e21e | 2863 | LOP(OP_ACCEPT,XTERM); |
79072805 | 2864 | |
463ee0b2 LW |
2865 | case KEY_and: |
2866 | OPERATOR(ANDOP); | |
2867 | ||
79072805 | 2868 | case KEY_atan2: |
a0d0e21e | 2869 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 2870 | |
79072805 | 2871 | case KEY_bind: |
a0d0e21e | 2872 | LOP(OP_BIND,XTERM); |
79072805 LW |
2873 | |
2874 | case KEY_binmode: | |
2875 | UNI(OP_BINMODE); | |
2876 | ||
2877 | case KEY_bless: | |
a0d0e21e | 2878 | LOP(OP_BLESS,XTERM); |
79072805 LW |
2879 | |
2880 | case KEY_chop: | |
2881 | UNI(OP_CHOP); | |
2882 | ||
2883 | case KEY_continue: | |
2884 | PREBLOCK(CONTINUE); | |
2885 | ||
2886 | case KEY_chdir: | |
85e6fe83 | 2887 | (void)gv_fetchpv("ENV",TRUE, SVt_PVHV); /* may use HOME */ |
79072805 LW |
2888 | UNI(OP_CHDIR); |
2889 | ||
2890 | case KEY_close: | |
2891 | UNI(OP_CLOSE); | |
2892 | ||
2893 | case KEY_closedir: | |
2894 | UNI(OP_CLOSEDIR); | |
2895 | ||
2896 | case KEY_cmp: | |
2897 | Eop(OP_SCMP); | |
2898 | ||
2899 | case KEY_caller: | |
2900 | UNI(OP_CALLER); | |
2901 | ||
2902 | case KEY_crypt: | |
2903 | #ifdef FCRYPT | |
de3bb511 LW |
2904 | if (!cryptseen++) |
2905 | init_des(); | |
a687059c | 2906 | #endif |
a0d0e21e | 2907 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
2908 | |
2909 | case KEY_chmod: | |
748a9306 LW |
2910 | if (dowarn) { |
2911 | for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ; | |
2912 | if (*d != '0' && isDIGIT(*d)) | |
2913 | yywarn("chmod: mode argument is missing initial 0"); | |
2914 | } | |
a0d0e21e | 2915 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
2916 | |
2917 | case KEY_chown: | |
a0d0e21e | 2918 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
2919 | |
2920 | case KEY_connect: | |
a0d0e21e | 2921 | LOP(OP_CONNECT,XTERM); |
79072805 | 2922 | |
463ee0b2 LW |
2923 | case KEY_chr: |
2924 | UNI(OP_CHR); | |
2925 | ||
79072805 LW |
2926 | case KEY_cos: |
2927 | UNI(OP_COS); | |
2928 | ||
2929 | case KEY_chroot: | |
2930 | UNI(OP_CHROOT); | |
2931 | ||
2932 | case KEY_do: | |
2933 | s = skipspace(s); | |
2934 | if (*s == '{') | |
a0d0e21e | 2935 | PRETERMBLOCK(DO); |
79072805 | 2936 | if (*s != '\'') |
a0d0e21e | 2937 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
378cc40b | 2938 | OPERATOR(DO); |
79072805 LW |
2939 | |
2940 | case KEY_die: | |
a0d0e21e LW |
2941 | hints |= HINT_BLOCK_SCOPE; |
2942 | LOP(OP_DIE,XTERM); | |
79072805 LW |
2943 | |
2944 | case KEY_defined: | |
2945 | UNI(OP_DEFINED); | |
2946 | ||
2947 | case KEY_delete: | |
a0d0e21e | 2948 | UNI(OP_DELETE); |
79072805 LW |
2949 | |
2950 | case KEY_dbmopen: | |
a0d0e21e LW |
2951 | gv_fetchpv("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
2952 | LOP(OP_DBMOPEN,XTERM); | |
79072805 LW |
2953 | |
2954 | case KEY_dbmclose: | |
2955 | UNI(OP_DBMCLOSE); | |
2956 | ||
2957 | case KEY_dump: | |
a0d0e21e | 2958 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
2959 | LOOPX(OP_DUMP); |
2960 | ||
2961 | case KEY_else: | |
2962 | PREBLOCK(ELSE); | |
2963 | ||
2964 | case KEY_elsif: | |
2965 | yylval.ival = curcop->cop_line; | |
2966 | OPERATOR(ELSIF); | |
2967 | ||
2968 | case KEY_eq: | |
2969 | Eop(OP_SEQ); | |
2970 | ||
a0d0e21e LW |
2971 | case KEY_exists: |
2972 | UNI(OP_EXISTS); | |
2973 | ||
79072805 LW |
2974 | case KEY_exit: |
2975 | UNI(OP_EXIT); | |
2976 | ||
2977 | case KEY_eval: | |
79072805 | 2978 | s = skipspace(s); |
a0d0e21e | 2979 | expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 2980 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
2981 | |
2982 | case KEY_eof: | |
2983 | UNI(OP_EOF); | |
2984 | ||
2985 | case KEY_exp: | |
2986 | UNI(OP_EXP); | |
2987 | ||
2988 | case KEY_each: | |
2989 | UNI(OP_EACH); | |
2990 | ||
2991 | case KEY_exec: | |
2992 | set_csh(); | |
a0d0e21e | 2993 | LOP(OP_EXEC,XREF); |
79072805 LW |
2994 | |
2995 | case KEY_endhostent: | |
2996 | FUN0(OP_EHOSTENT); | |
2997 | ||
2998 | case KEY_endnetent: | |
2999 | FUN0(OP_ENETENT); | |
3000 | ||
3001 | case KEY_endservent: | |
3002 | FUN0(OP_ESERVENT); | |
3003 | ||
3004 | case KEY_endprotoent: | |
3005 | FUN0(OP_EPROTOENT); | |
3006 | ||
3007 | case KEY_endpwent: | |
3008 | FUN0(OP_EPWENT); | |
3009 | ||
3010 | case KEY_endgrent: | |
3011 | FUN0(OP_EGRENT); | |
3012 | ||
3013 | case KEY_for: | |
3014 | case KEY_foreach: | |
3015 | yylval.ival = curcop->cop_line; | |
55497cff | 3016 | s = skipspace(s); |
3017 | if (isIDFIRST(*s)) { | |
3018 | char *p = s; | |
3019 | if ((bufend - p) >= 3 && | |
3020 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) | |
3021 | p += 2; | |
3022 | p = skipspace(p); | |
3023 | if (isIDFIRST(*p)) | |
3024 | croak("Missing $ on loop variable"); | |
3025 | } | |
79072805 LW |
3026 | OPERATOR(FOR); |
3027 | ||
3028 | case KEY_formline: | |
a0d0e21e | 3029 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
3030 | |
3031 | case KEY_fork: | |
3032 | FUN0(OP_FORK); | |
3033 | ||
3034 | case KEY_fcntl: | |
a0d0e21e | 3035 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
3036 | |
3037 | case KEY_fileno: | |
3038 | UNI(OP_FILENO); | |
3039 | ||
3040 | case KEY_flock: | |
a0d0e21e | 3041 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
3042 | |
3043 | case KEY_gt: | |
3044 | Rop(OP_SGT); | |
3045 | ||
3046 | case KEY_ge: | |
3047 | Rop(OP_SGE); | |
3048 | ||
3049 | case KEY_grep: | |
a0d0e21e | 3050 | LOP(OP_GREPSTART, *s == '(' ? XTERM : XREF); |
79072805 LW |
3051 | |
3052 | case KEY_goto: | |
a0d0e21e | 3053 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
3054 | LOOPX(OP_GOTO); |
3055 | ||
3056 | case KEY_gmtime: | |
3057 | UNI(OP_GMTIME); | |
3058 | ||
3059 | case KEY_getc: | |
3060 | UNI(OP_GETC); | |
3061 | ||
3062 | case KEY_getppid: | |
3063 | FUN0(OP_GETPPID); | |
3064 | ||
3065 | case KEY_getpgrp: | |
3066 | UNI(OP_GETPGRP); | |
3067 | ||
3068 | case KEY_getpriority: | |
a0d0e21e | 3069 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
3070 | |
3071 | case KEY_getprotobyname: | |
3072 | UNI(OP_GPBYNAME); | |
3073 | ||
3074 | case KEY_getprotobynumber: | |
a0d0e21e | 3075 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
3076 | |
3077 | case KEY_getprotoent: | |
3078 | FUN0(OP_GPROTOENT); | |
3079 | ||
3080 | case KEY_getpwent: | |
3081 | FUN0(OP_GPWENT); | |
3082 | ||
3083 | case KEY_getpwnam: | |
ff68c719 | 3084 | UNI(OP_GPWNAM); |
79072805 LW |
3085 | |
3086 | case KEY_getpwuid: | |
ff68c719 | 3087 | UNI(OP_GPWUID); |
79072805 LW |
3088 | |
3089 | case KEY_getpeername: | |
3090 | UNI(OP_GETPEERNAME); | |
3091 | ||
3092 | case KEY_gethostbyname: | |
3093 | UNI(OP_GHBYNAME); | |
3094 | ||
3095 | case KEY_gethostbyaddr: | |
a0d0e21e | 3096 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
3097 | |
3098 | case KEY_gethostent: | |
3099 | FUN0(OP_GHOSTENT); | |
3100 | ||
3101 | case KEY_getnetbyname: | |
3102 | UNI(OP_GNBYNAME); | |
3103 | ||
3104 | case KEY_getnetbyaddr: | |
a0d0e21e | 3105 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
3106 | |
3107 | case KEY_getnetent: | |
3108 | FUN0(OP_GNETENT); | |
3109 | ||
3110 | case KEY_getservbyname: | |
a0d0e21e | 3111 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
3112 | |
3113 | case KEY_getservbyport: | |
a0d0e21e | 3114 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
3115 | |
3116 | case KEY_getservent: | |
3117 | FUN0(OP_GSERVENT); | |
3118 | ||
3119 | case KEY_getsockname: | |
3120 | UNI(OP_GETSOCKNAME); | |
3121 | ||
3122 | case KEY_getsockopt: | |
a0d0e21e | 3123 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
3124 | |
3125 | case KEY_getgrent: | |
3126 | FUN0(OP_GGRENT); | |
3127 | ||
3128 | case KEY_getgrnam: | |
ff68c719 | 3129 | UNI(OP_GGRNAM); |
79072805 LW |
3130 | |
3131 | case KEY_getgrgid: | |
ff68c719 | 3132 | UNI(OP_GGRGID); |
79072805 LW |
3133 | |
3134 | case KEY_getlogin: | |
3135 | FUN0(OP_GETLOGIN); | |
3136 | ||
93a17b20 | 3137 | case KEY_glob: |
a0d0e21e LW |
3138 | set_csh(); |
3139 | LOP(OP_GLOB,XTERM); | |
93a17b20 | 3140 | |
79072805 LW |
3141 | case KEY_hex: |
3142 | UNI(OP_HEX); | |
3143 | ||
3144 | case KEY_if: | |
3145 | yylval.ival = curcop->cop_line; | |
3146 | OPERATOR(IF); | |
3147 | ||
3148 | case KEY_index: | |
a0d0e21e | 3149 | LOP(OP_INDEX,XTERM); |
79072805 LW |
3150 | |
3151 | case KEY_int: | |
3152 | UNI(OP_INT); | |
3153 | ||
3154 | case KEY_ioctl: | |
a0d0e21e | 3155 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
3156 | |
3157 | case KEY_join: | |
a0d0e21e | 3158 | LOP(OP_JOIN,XTERM); |
79072805 LW |
3159 | |
3160 | case KEY_keys: | |
3161 | UNI(OP_KEYS); | |
3162 | ||
3163 | case KEY_kill: | |
a0d0e21e | 3164 | LOP(OP_KILL,XTERM); |
79072805 LW |
3165 | |
3166 | case KEY_last: | |
a0d0e21e | 3167 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 3168 | LOOPX(OP_LAST); |
a0d0e21e | 3169 | |
79072805 LW |
3170 | case KEY_lc: |
3171 | UNI(OP_LC); | |
3172 | ||
3173 | case KEY_lcfirst: | |
3174 | UNI(OP_LCFIRST); | |
3175 | ||
3176 | case KEY_local: | |
3177 | OPERATOR(LOCAL); | |
3178 | ||
3179 | case KEY_length: | |
3180 | UNI(OP_LENGTH); | |
3181 | ||
3182 | case KEY_lt: | |
3183 | Rop(OP_SLT); | |
3184 | ||
3185 | case KEY_le: | |
3186 | Rop(OP_SLE); | |
3187 | ||
3188 | case KEY_localtime: | |
3189 | UNI(OP_LOCALTIME); | |
3190 | ||
3191 | case KEY_log: | |
3192 | UNI(OP_LOG); | |
3193 | ||
3194 | case KEY_link: | |
a0d0e21e | 3195 | LOP(OP_LINK,XTERM); |
79072805 LW |
3196 | |
3197 | case KEY_listen: | |
a0d0e21e | 3198 | LOP(OP_LISTEN,XTERM); |
79072805 | 3199 | |
c0329465 MB |
3200 | case KEY_lock: |
3201 | UNI(OP_LOCK); | |
3202 | ||
79072805 LW |
3203 | case KEY_lstat: |
3204 | UNI(OP_LSTAT); | |
3205 | ||
3206 | case KEY_m: | |
3207 | s = scan_pat(s); | |
3208 | TERM(sublex_start()); | |
3209 | ||
a0d0e21e LW |
3210 | case KEY_map: |
3211 | LOP(OP_MAPSTART,XREF); | |
3212 | ||
79072805 | 3213 | case KEY_mkdir: |
a0d0e21e | 3214 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
3215 | |
3216 | case KEY_msgctl: | |
a0d0e21e | 3217 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
3218 | |
3219 | case KEY_msgget: | |
a0d0e21e | 3220 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
3221 | |
3222 | case KEY_msgrcv: | |
a0d0e21e | 3223 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
3224 | |
3225 | case KEY_msgsnd: | |
a0d0e21e | 3226 | LOP(OP_MSGSND,XTERM); |
79072805 | 3227 | |
93a17b20 LW |
3228 | case KEY_my: |
3229 | in_my = TRUE; | |
c750a3ec MB |
3230 | s = skipspace(s); |
3231 | if (isIDFIRST(*s)) { | |
97fcbf96 | 3232 | s = scan_word(s, tokenbuf, sizeof tokenbuf, TRUE, &len); |
c750a3ec MB |
3233 | in_my_stash = gv_stashpv(tokenbuf, FALSE); |
3234 | if (!in_my_stash) { | |
3235 | char tmpbuf[1024]; | |
3236 | bufptr = s; | |
3237 | sprintf(tmpbuf, "No such class %.1000s", tokenbuf); | |
3238 | yyerror(tmpbuf); | |
3239 | } | |
3240 | } | |
55497cff | 3241 | OPERATOR(MY); |
93a17b20 | 3242 | |
79072805 | 3243 | case KEY_next: |
a0d0e21e | 3244 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
3245 | LOOPX(OP_NEXT); |
3246 | ||
3247 | case KEY_ne: | |
3248 | Eop(OP_SNE); | |
3249 | ||
a0d0e21e LW |
3250 | case KEY_no: |
3251 | if (expect != XSTATE) | |
3252 | yyerror("\"no\" not allowed in expression"); | |
3253 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
89bfa8cd | 3254 | s = force_version(s); |
a0d0e21e LW |
3255 | yylval.ival = 0; |
3256 | OPERATOR(USE); | |
3257 | ||
3258 | case KEY_not: | |
3259 | OPERATOR(NOTOP); | |
3260 | ||
79072805 | 3261 | case KEY_open: |
93a17b20 LW |
3262 | s = skipspace(s); |
3263 | if (isIDFIRST(*s)) { | |
3264 | char *t; | |
3265 | for (d = s; isALNUM(*d); d++) ; | |
3266 | t = skipspace(d); | |
3267 | if (strchr("|&*+-=!?:.", *t)) | |
3268 | warn("Precedence problem: open %.*s should be open(%.*s)", | |
3269 | d-s,s, d-s,s); | |
3270 | } | |
a0d0e21e | 3271 | LOP(OP_OPEN,XTERM); |
79072805 | 3272 | |
463ee0b2 | 3273 | case KEY_or: |
a0d0e21e | 3274 | yylval.ival = OP_OR; |
463ee0b2 LW |
3275 | OPERATOR(OROP); |
3276 | ||
79072805 LW |
3277 | case KEY_ord: |
3278 | UNI(OP_ORD); | |
3279 | ||
3280 | case KEY_oct: | |
3281 | UNI(OP_OCT); | |
3282 | ||
3283 | case KEY_opendir: | |
a0d0e21e | 3284 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
3285 | |
3286 | case KEY_print: | |
3287 | checkcomma(s,tokenbuf,"filehandle"); | |
a0d0e21e | 3288 | LOP(OP_PRINT,XREF); |
79072805 LW |
3289 | |
3290 | case KEY_printf: | |
3291 | checkcomma(s,tokenbuf,"filehandle"); | |
a0d0e21e | 3292 | LOP(OP_PRTF,XREF); |
79072805 | 3293 | |
c07a80fd | 3294 | case KEY_prototype: |
3295 | UNI(OP_PROTOTYPE); | |
3296 | ||
79072805 | 3297 | case KEY_push: |
a0d0e21e | 3298 | LOP(OP_PUSH,XTERM); |
79072805 LW |
3299 | |
3300 | case KEY_pop: | |
3301 | UNI(OP_POP); | |
3302 | ||
a0d0e21e LW |
3303 | case KEY_pos: |
3304 | UNI(OP_POS); | |
3305 | ||
79072805 | 3306 | case KEY_pack: |
a0d0e21e | 3307 | LOP(OP_PACK,XTERM); |
79072805 LW |
3308 | |
3309 | case KEY_package: | |
a0d0e21e | 3310 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
3311 | OPERATOR(PACKAGE); |
3312 | ||
3313 | case KEY_pipe: | |
a0d0e21e | 3314 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
3315 | |
3316 | case KEY_q: | |
3317 | s = scan_str(s); | |
3318 | if (!s) | |
85e6fe83 | 3319 | missingterm((char*)0); |
79072805 LW |
3320 | yylval.ival = OP_CONST; |
3321 | TERM(sublex_start()); | |
3322 | ||
a0d0e21e LW |
3323 | case KEY_quotemeta: |
3324 | UNI(OP_QUOTEMETA); | |
3325 | ||
8990e307 LW |
3326 | case KEY_qw: |
3327 | s = scan_str(s); | |
3328 | if (!s) | |
85e6fe83 | 3329 | missingterm((char*)0); |
55497cff | 3330 | if (dowarn && SvLEN(lex_stuff)) { |
3331 | d = SvPV_force(lex_stuff, len); | |
3332 | for (; len; --len, ++d) { | |
3333 | if (*d == ',') { | |
3334 | warn("Possible attempt to separate words with commas"); | |
3335 | break; | |
3336 | } | |
3337 | if (*d == '#') { | |
3338 | warn("Possible attempt to put comments in qw() list"); | |
3339 | break; | |
3340 | } | |
3341 | } | |
3342 | } | |
8990e307 LW |
3343 | force_next(')'); |
3344 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, q(lex_stuff)); | |
3345 | lex_stuff = Nullsv; | |
3346 | force_next(THING); | |
3347 | force_next(','); | |
3348 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(" ",1)); | |
3349 | force_next(THING); | |
3350 | force_next('('); | |
a0d0e21e LW |
3351 | yylval.ival = OP_SPLIT; |
3352 | CLINE; | |
3353 | expect = XTERM; | |
3354 | bufptr = s; | |
3355 | last_lop = oldbufptr; | |
3356 | last_lop_op = OP_SPLIT; | |
3357 | return FUNC; | |
8990e307 | 3358 | |
79072805 LW |
3359 | case KEY_qq: |
3360 | s = scan_str(s); | |
3361 | if (!s) | |
85e6fe83 | 3362 | missingterm((char*)0); |
a0d0e21e | 3363 | yylval.ival = OP_STRINGIFY; |
ed6116ce LW |
3364 | if (SvIVX(lex_stuff) == '\'') |
3365 | SvIVX(lex_stuff) = 0; /* qq'$foo' should intepolate */ | |
79072805 LW |
3366 | TERM(sublex_start()); |
3367 | ||
3368 | case KEY_qx: | |
3369 | s = scan_str(s); | |
3370 | if (!s) | |
85e6fe83 | 3371 | missingterm((char*)0); |
79072805 LW |
3372 | yylval.ival = OP_BACKTICK; |
3373 | set_csh(); | |
3374 | TERM(sublex_start()); | |
3375 | ||
3376 | case KEY_return: | |
3377 | OLDLOP(OP_RETURN); | |
3378 | ||
3379 | case KEY_require: | |
748a9306 | 3380 | *tokenbuf = '\0'; |
a0d0e21e | 3381 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
748a9306 | 3382 | if (isIDFIRST(*tokenbuf)) |
89bfa8cd | 3383 | gv_stashpvn(tokenbuf, strlen(tokenbuf), TRUE); |
748a9306 | 3384 | else if (*s == '<') |
a0d0e21e | 3385 | yyerror("<> should be quotes"); |
463ee0b2 | 3386 | UNI(OP_REQUIRE); |
79072805 LW |
3387 | |
3388 | case KEY_reset: | |
3389 | UNI(OP_RESET); | |
3390 | ||
3391 | case KEY_redo: | |
a0d0e21e | 3392 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
3393 | LOOPX(OP_REDO); |
3394 | ||
3395 | case KEY_rename: | |
a0d0e21e | 3396 | LOP(OP_RENAME,XTERM); |
79072805 LW |
3397 | |
3398 | case KEY_rand: | |
3399 | UNI(OP_RAND); | |
3400 | ||
3401 | case KEY_rmdir: | |
3402 | UNI(OP_RMDIR); | |
3403 | ||
3404 | case KEY_rindex: | |
a0d0e21e | 3405 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
3406 | |
3407 | case KEY_read: | |
a0d0e21e | 3408 | LOP(OP_READ,XTERM); |
79072805 LW |
3409 | |
3410 | case KEY_readdir: | |
3411 | UNI(OP_READDIR); | |
3412 | ||
93a17b20 LW |
3413 | case KEY_readline: |
3414 | set_csh(); | |
3415 | UNI(OP_READLINE); | |
3416 | ||
3417 | case KEY_readpipe: | |
3418 | set_csh(); | |
3419 | UNI(OP_BACKTICK); | |
3420 | ||
79072805 LW |
3421 | case KEY_rewinddir: |
3422 | UNI(OP_REWINDDIR); | |
3423 | ||
3424 | case KEY_recv: | |
a0d0e21e | 3425 | LOP(OP_RECV,XTERM); |
79072805 LW |
3426 | |
3427 | case KEY_reverse: | |
a0d0e21e | 3428 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
3429 | |
3430 | case KEY_readlink: | |
3431 | UNI(OP_READLINK); | |
3432 | ||
3433 | case KEY_ref: | |
3434 | UNI(OP_REF); | |
3435 | ||
3436 | case KEY_s: | |
3437 | s = scan_subst(s); | |
3438 | if (yylval.opval) | |
3439 | TERM(sublex_start()); | |
3440 | else | |
3441 | TOKEN(1); /* force error */ | |
3442 | ||
a0d0e21e LW |
3443 | case KEY_chomp: |
3444 | UNI(OP_CHOMP); | |
3445 | ||
79072805 LW |
3446 | case KEY_scalar: |
3447 | UNI(OP_SCALAR); | |
3448 | ||
3449 | case KEY_select: | |
a0d0e21e | 3450 | LOP(OP_SELECT,XTERM); |
79072805 LW |
3451 | |
3452 | case KEY_seek: | |
a0d0e21e | 3453 | LOP(OP_SEEK,XTERM); |
79072805 LW |
3454 | |
3455 | case KEY_semctl: | |
a0d0e21e | 3456 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
3457 | |
3458 | case KEY_semget: | |
a0d0e21e | 3459 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
3460 | |
3461 | case KEY_semop: | |
a0d0e21e | 3462 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
3463 | |
3464 | case KEY_send: | |
a0d0e21e | 3465 | LOP(OP_SEND,XTERM); |
79072805 LW |
3466 | |
3467 | case KEY_setpgrp: | |
a0d0e21e | 3468 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
3469 | |
3470 | case KEY_setpriority: | |
a0d0e21e | 3471 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
3472 | |
3473 | case KEY_sethostent: | |
ff68c719 | 3474 | UNI(OP_SHOSTENT); |
79072805 LW |
3475 | |
3476 | case KEY_setnetent: | |
ff68c719 | 3477 | UNI(OP_SNETENT); |
79072805 LW |
3478 | |
3479 | case KEY_setservent: | |
ff68c719 | 3480 | UNI(OP_SSERVENT); |
79072805 LW |
3481 | |
3482 | case KEY_setprotoent: | |
ff68c719 | 3483 | UNI(OP_SPROTOENT); |
79072805 LW |
3484 | |
3485 | case KEY_setpwent: | |
3486 | FUN0(OP_SPWENT); | |
3487 | ||
3488 | case KEY_setgrent: | |
3489 | FUN0(OP_SGRENT); | |
3490 | ||
3491 | case KEY_seekdir: | |
a0d0e21e | 3492 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
3493 | |
3494 | case KEY_setsockopt: | |
a0d0e21e | 3495 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
3496 | |
3497 | case KEY_shift: | |
3498 | UNI(OP_SHIFT); | |
3499 | ||
3500 | case KEY_shmctl: | |
a0d0e21e | 3501 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
3502 | |
3503 | case KEY_shmget: | |
a0d0e21e | 3504 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
3505 | |
3506 | case KEY_shmread: | |
a0d0e21e | 3507 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
3508 | |
3509 | case KEY_shmwrite: | |
a0d0e21e | 3510 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
3511 | |
3512 | case KEY_shutdown: | |
a0d0e21e | 3513 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
3514 | |
3515 | case KEY_sin: | |
3516 | UNI(OP_SIN); | |
3517 | ||
3518 | case KEY_sleep: | |
3519 | UNI(OP_SLEEP); | |
3520 | ||
3521 | case KEY_socket: | |
a0d0e21e | 3522 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
3523 | |
3524 | case KEY_socketpair: | |
a0d0e21e | 3525 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
3526 | |
3527 | case KEY_sort: | |
3528 | checkcomma(s,tokenbuf,"subroutine name"); | |
3529 | s = skipspace(s); | |
3530 | if (*s == ';' || *s == ')') /* probably a close */ | |
463ee0b2 LW |
3531 | croak("sort is now a reserved word"); |
3532 | expect = XTERM; | |
a0d0e21e LW |
3533 | s = force_word(s,WORD,TRUE,TRUE,TRUE); |
3534 | LOP(OP_SORT,XREF); | |
79072805 LW |
3535 | |
3536 | case KEY_split: | |
a0d0e21e | 3537 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
3538 | |
3539 | case KEY_sprintf: | |
a0d0e21e | 3540 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
3541 | |
3542 | case KEY_splice: | |
a0d0e21e | 3543 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
3544 | |
3545 | case KEY_sqrt: | |
3546 | UNI(OP_SQRT); | |
3547 | ||
3548 | case KEY_srand: | |
3549 | UNI(OP_SRAND); | |
3550 | ||
3551 | case KEY_stat: | |
3552 | UNI(OP_STAT); | |
3553 | ||
3554 | case KEY_study: | |
3555 | sawstudy++; | |
3556 | UNI(OP_STUDY); | |
3557 | ||
3558 | case KEY_substr: | |
a0d0e21e | 3559 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
3560 | |
3561 | case KEY_format: | |
3562 | case KEY_sub: | |
93a17b20 | 3563 | really_sub: |
79072805 | 3564 | s = skipspace(s); |
4633a7c4 | 3565 | |
463ee0b2 | 3566 | if (isIDFIRST(*s) || *s == '\'' || *s == ':') { |
8903cb82 | 3567 | char tmpbuf[sizeof tokenbuf]; |
4633a7c4 | 3568 | expect = XBLOCK; |
8903cb82 | 3569 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
463ee0b2 LW |
3570 | if (strchr(tmpbuf, ':')) |
3571 | sv_setpv(subname, tmpbuf); | |
3572 | else { | |
3573 | sv_setsv(subname,curstname); | |
8990e307 | 3574 | sv_catpvn(subname,"::",2); |
463ee0b2 LW |
3575 | sv_catpvn(subname,tmpbuf,len); |
3576 | } | |
a0d0e21e | 3577 | s = force_word(s,WORD,FALSE,TRUE,TRUE); |
4633a7c4 | 3578 | s = skipspace(s); |
79072805 | 3579 | } |
4633a7c4 LW |
3580 | else { |
3581 | expect = XTERMBLOCK; | |
79072805 | 3582 | sv_setpv(subname,"?"); |
4633a7c4 LW |
3583 | } |
3584 | ||
3585 | if (tmp == KEY_format) { | |
3586 | s = skipspace(s); | |
3587 | if (*s == '=') | |
3588 | lex_formbrack = lex_brackets + 1; | |
3589 | OPERATOR(FORMAT); | |
3590 | } | |
79072805 | 3591 | |
4633a7c4 LW |
3592 | /* Look for a prototype */ |
3593 | if (*s == '(') { | |
68dc0745 | 3594 | char *p; |
3595 | ||
4633a7c4 LW |
3596 | s = scan_str(s); |
3597 | if (!s) { | |
3598 | if (lex_stuff) | |
3599 | SvREFCNT_dec(lex_stuff); | |
3600 | lex_stuff = Nullsv; | |
3601 | croak("Prototype not terminated"); | |
3602 | } | |
68dc0745 | 3603 | /* strip spaces */ |
3604 | d = SvPVX(lex_stuff); | |
3605 | tmp = 0; | |
3606 | for (p = d; *p; ++p) { | |
3607 | if (!isSPACE(*p)) | |
3608 | d[tmp++] = *p; | |
3609 | } | |
3610 | d[tmp] = '\0'; | |
3611 | SvCUR(lex_stuff) = tmp; | |
3612 | ||
4633a7c4 LW |
3613 | nexttoke++; |
3614 | nextval[1] = nextval[0]; | |
3615 | nexttype[1] = nexttype[0]; | |
3616 | nextval[0].opval = (OP*)newSVOP(OP_CONST, 0, lex_stuff); | |
3617 | nexttype[0] = THING; | |
3618 | if (nexttoke == 1) { | |
3619 | lex_defer = lex_state; | |
3620 | lex_expect = expect; | |
3621 | lex_state = LEX_KNOWNEXT; | |
3622 | } | |
3623 | lex_stuff = Nullsv; | |
3624 | } | |
79072805 | 3625 | |
4633a7c4 LW |
3626 | if (*SvPV(subname,na) == '?') { |
3627 | sv_setpv(subname,"__ANON__"); | |
3628 | TOKEN(ANONSUB); | |
3629 | } | |
3630 | PREBLOCK(SUB); | |
79072805 LW |
3631 | |
3632 | case KEY_system: | |
3633 | set_csh(); | |
a0d0e21e | 3634 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
3635 | |
3636 | case KEY_symlink: | |
a0d0e21e | 3637 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
3638 | |
3639 | case KEY_syscall: | |
a0d0e21e | 3640 | LOP(OP_SYSCALL,XTERM); |
79072805 | 3641 | |
c07a80fd | 3642 | case KEY_sysopen: |
3643 | LOP(OP_SYSOPEN,XTERM); | |
3644 | ||
137443ea | 3645 | case KEY_sysseek: |
3646 | LOP(OP_SYSSEEK,XTERM); | |
3647 | ||
79072805 | 3648 | case KEY_sysread: |
a0d0e21e | 3649 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
3650 | |
3651 | case KEY_syswrite: | |
a0d0e21e | 3652 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
3653 | |
3654 | case KEY_tr: | |
3655 | s = scan_trans(s); | |
3656 | TERM(sublex_start()); | |
3657 | ||
3658 | case KEY_tell: | |
3659 | UNI(OP_TELL); | |
3660 | ||
3661 | case KEY_telldir: | |
3662 | UNI(OP_TELLDIR); | |
3663 | ||
463ee0b2 | 3664 | case KEY_tie: |
a0d0e21e | 3665 | LOP(OP_TIE,XTERM); |
463ee0b2 | 3666 | |
c07a80fd | 3667 | case KEY_tied: |
3668 | UNI(OP_TIED); | |
3669 | ||
79072805 LW |
3670 | case KEY_time: |
3671 | FUN0(OP_TIME); | |
3672 | ||
3673 | case KEY_times: | |
3674 | FUN0(OP_TMS); | |
3675 | ||
3676 | case KEY_truncate: | |
a0d0e21e | 3677 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
3678 | |
3679 | case KEY_uc: | |
3680 | UNI(OP_UC); | |
3681 | ||
3682 | case KEY_ucfirst: | |
3683 | UNI(OP_UCFIRST); | |
3684 | ||
463ee0b2 LW |
3685 | case KEY_untie: |
3686 | UNI(OP_UNTIE); | |
3687 | ||
79072805 LW |
3688 | case KEY_until: |
3689 | yylval.ival = curcop->cop_line; | |
3690 | OPERATOR(UNTIL); | |
3691 | ||
3692 | case KEY_unless: | |
3693 | yylval.ival = curcop->cop_line; | |
3694 | OPERATOR(UNLESS); | |
3695 | ||
3696 | case KEY_unlink: | |
a0d0e21e | 3697 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
3698 | |
3699 | case KEY_undef: | |
3700 | UNI(OP_UNDEF); | |
3701 | ||
3702 | case KEY_unpack: | |
a0d0e21e | 3703 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
3704 | |
3705 | case KEY_utime: | |
a0d0e21e | 3706 | LOP(OP_UTIME,XTERM); |
79072805 LW |
3707 | |
3708 | case KEY_umask: | |
748a9306 LW |
3709 | if (dowarn) { |
3710 | for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ; | |
3711 | if (*d != '0' && isDIGIT(*d)) | |
3712 | yywarn("umask: argument is missing initial 0"); | |
3713 | } | |
79072805 LW |
3714 | UNI(OP_UMASK); |
3715 | ||
3716 | case KEY_unshift: | |
a0d0e21e LW |
3717 | LOP(OP_UNSHIFT,XTERM); |
3718 | ||
3719 | case KEY_use: | |
3720 | if (expect != XSTATE) | |
3721 | yyerror("\"use\" not allowed in expression"); | |
89bfa8cd | 3722 | s = skipspace(s); |
3723 | if(isDIGIT(*s)) { | |
3724 | s = force_version(s); | |
3725 | if(*s == ';' || (s = skipspace(s), *s == ';')) { | |
3726 | nextval[nexttoke].opval = Nullop; | |
3727 | force_next(WORD); | |
3728 | } | |
3729 | } | |
3730 | else { | |
3731 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
3732 | s = force_version(s); | |
3733 | } | |
a0d0e21e LW |
3734 | yylval.ival = 1; |
3735 | OPERATOR(USE); | |
79072805 LW |
3736 | |
3737 | case KEY_values: | |
3738 | UNI(OP_VALUES); | |
3739 | ||
3740 | case KEY_vec: | |
3741 | sawvec = TRUE; | |
a0d0e21e | 3742 | LOP(OP_VEC,XTERM); |
79072805 LW |
3743 | |
3744 | case KEY_while: | |
3745 | yylval.ival = curcop->cop_line; | |
3746 | OPERATOR(WHILE); | |
3747 | ||
3748 | case KEY_warn: | |
a0d0e21e LW |
3749 | hints |= HINT_BLOCK_SCOPE; |
3750 | LOP(OP_WARN,XTERM); | |
79072805 LW |
3751 | |
3752 | case KEY_wait: | |
3753 | FUN0(OP_WAIT); | |
3754 | ||
3755 | case KEY_waitpid: | |
a0d0e21e | 3756 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
3757 | |
3758 | case KEY_wantarray: | |
3759 | FUN0(OP_WANTARRAY); | |
3760 | ||
3761 | case KEY_write: | |
85e6fe83 | 3762 | gv_fetchpv("\f",TRUE, SVt_PV); /* Make sure $^L is defined */ |
79072805 LW |
3763 | UNI(OP_ENTERWRITE); |
3764 | ||
3765 | case KEY_x: | |
3766 | if (expect == XOPERATOR) | |
3767 | Mop(OP_REPEAT); | |
3768 | check_uni(); | |
3769 | goto just_a_word; | |
3770 | ||
a0d0e21e LW |
3771 | case KEY_xor: |
3772 | yylval.ival = OP_XOR; | |
3773 | OPERATOR(OROP); | |
3774 | ||
79072805 LW |
3775 | case KEY_y: |
3776 | s = scan_trans(s); | |
3777 | TERM(sublex_start()); | |
3778 | } | |
3779 | } | |
3780 | } | |
3781 | ||
3782 | I32 | |
3783 | keyword(d, len) | |
3784 | register char *d; | |
3785 | I32 len; | |
3786 | { | |
3787 | switch (*d) { | |
3788 | case '_': | |
3789 | if (d[1] == '_') { | |
a0d0e21e | 3790 | if (strEQ(d,"__FILE__")) return -KEY___FILE__; |
68dc0745 | 3791 | if (strEQ(d,"__LINE__")) return -KEY___LINE__; |
3792 | if (strEQ(d,"__PACKAGE__")) return -KEY___PACKAGE__; | |
e50aee73 | 3793 | if (strEQ(d,"__DATA__")) return KEY___DATA__; |
79072805 LW |
3794 | if (strEQ(d,"__END__")) return KEY___END__; |
3795 | } | |
3796 | break; | |
8990e307 LW |
3797 | case 'A': |
3798 | if (strEQ(d,"AUTOLOAD")) return KEY_AUTOLOAD; | |
3799 | break; | |
79072805 | 3800 | case 'a': |
463ee0b2 LW |
3801 | switch (len) { |
3802 | case 3: | |
a0d0e21e LW |
3803 | if (strEQ(d,"and")) return -KEY_and; |
3804 | if (strEQ(d,"abs")) return -KEY_abs; | |
85e6fe83 | 3805 | break; |
463ee0b2 | 3806 | case 5: |
a0d0e21e LW |
3807 | if (strEQ(d,"alarm")) return -KEY_alarm; |
3808 | if (strEQ(d,"atan2")) return -KEY_atan2; | |
463ee0b2 LW |
3809 | break; |
3810 | case 6: | |
a0d0e21e | 3811 | if (strEQ(d,"accept")) return -KEY_accept; |
463ee0b2 LW |
3812 | break; |
3813 | } | |
79072805 LW |
3814 | break; |
3815 | case 'B': | |
3816 | if (strEQ(d,"BEGIN")) return KEY_BEGIN; | |
93a17b20 | 3817 | break; |
79072805 | 3818 | case 'b': |
a0d0e21e LW |
3819 | if (strEQ(d,"bless")) return -KEY_bless; |
3820 | if (strEQ(d,"bind")) return -KEY_bind; | |
3821 | if (strEQ(d,"binmode")) return -KEY_binmode; | |
3822 | break; | |
3823 | case 'C': | |
3824 | if (strEQ(d,"CORE")) return -KEY_CORE; | |
79072805 LW |
3825 | break; |
3826 | case 'c': | |
3827 | switch (len) { | |
3828 | case 3: | |
a0d0e21e LW |
3829 | if (strEQ(d,"cmp")) return -KEY_cmp; |
3830 | if (strEQ(d,"chr")) return -KEY_chr; | |
3831 | if (strEQ(d,"cos")) return -KEY_cos; | |
79072805 LW |
3832 | break; |
3833 | case 4: | |
3834 | if (strEQ(d,"chop")) return KEY_chop; | |
3835 | break; | |
3836 | case 5: | |
a0d0e21e LW |
3837 | if (strEQ(d,"close")) return -KEY_close; |
3838 | if (strEQ(d,"chdir")) return -KEY_chdir; | |
3839 | if (strEQ(d,"chomp")) return KEY_chomp; | |
3840 | if (strEQ(d,"chmod")) return -KEY_chmod; | |
3841 | if (strEQ(d,"chown")) return -KEY_chown; | |
3842 | if (strEQ(d,"crypt")) return -KEY_crypt; | |
79072805 LW |
3843 | break; |
3844 | case 6: | |
a0d0e21e LW |
3845 | if (strEQ(d,"chroot")) return -KEY_chroot; |
3846 | if (strEQ(d,"caller")) return -KEY_caller; | |
79072805 LW |
3847 | break; |
3848 | case 7: | |
a0d0e21e | 3849 | if (strEQ(d,"connect")) return -KEY_connect; |
79072805 LW |
3850 | break; |
3851 | case 8: | |
a0d0e21e LW |
3852 | if (strEQ(d,"closedir")) return -KEY_closedir; |
3853 | if (strEQ(d,"continue")) return -KEY_continue; | |
79072805 LW |
3854 | break; |
3855 | } | |
3856 | break; | |
ed6116ce LW |
3857 | case 'D': |
3858 | if (strEQ(d,"DESTROY")) return KEY_DESTROY; | |
3859 | break; | |
79072805 LW |
3860 | case 'd': |
3861 | switch (len) { | |
3862 | case 2: | |
3863 | if (strEQ(d,"do")) return KEY_do; | |
3864 | break; | |
3865 | case 3: | |
a0d0e21e | 3866 | if (strEQ(d,"die")) return -KEY_die; |
79072805 LW |
3867 | break; |
3868 | case 4: | |
a0d0e21e | 3869 | if (strEQ(d,"dump")) return -KEY_dump; |
79072805 LW |
3870 | break; |
3871 | case 6: | |
3872 | if (strEQ(d,"delete")) return KEY_delete; | |
3873 | break; | |
3874 | case 7: | |
3875 | if (strEQ(d,"defined")) return KEY_defined; | |
a0d0e21e | 3876 | if (strEQ(d,"dbmopen")) return -KEY_dbmopen; |
79072805 LW |
3877 | break; |
3878 | case 8: | |
a0d0e21e | 3879 | if (strEQ(d,"dbmclose")) return -KEY_dbmclose; |
79072805 LW |
3880 | break; |
3881 | } | |
3882 | break; | |
3883 | case 'E': | |
a0d0e21e | 3884 | if (strEQ(d,"EQ")) { deprecate(d); return -KEY_eq;} |
79072805 LW |
3885 | if (strEQ(d,"END")) return KEY_END; |
3886 | break; | |
3887 | case 'e': | |
3888 | switch (len) { | |
3889 | case 2: | |
a0d0e21e | 3890 | if (strEQ(d,"eq")) return -KEY_eq; |
79072805 LW |
3891 | break; |
3892 | case 3: | |
a0d0e21e LW |
3893 | if (strEQ(d,"eof")) return -KEY_eof; |
3894 | if (strEQ(d,"exp")) return -KEY_exp; | |
79072805 LW |
3895 | break; |
3896 | case 4: | |
3897 | if (strEQ(d,"else")) return KEY_else; | |
a0d0e21e | 3898 | if (strEQ(d,"exit")) return -KEY_exit; |
79072805 | 3899 | if (strEQ(d,"eval")) return KEY_eval; |
a0d0e21e | 3900 | if (strEQ(d,"exec")) return -KEY_exec; |
79072805 LW |
3901 | if (strEQ(d,"each")) return KEY_each; |
3902 | break; | |
3903 | case 5: | |
3904 | if (strEQ(d,"elsif")) return KEY_elsif; | |
3905 | break; | |
a0d0e21e LW |
3906 | case 6: |
3907 | if (strEQ(d,"exists")) return KEY_exists; | |
4633a7c4 | 3908 | if (strEQ(d,"elseif")) warn("elseif should be elsif"); |
a0d0e21e | 3909 | break; |
79072805 | 3910 | case 8: |
a0d0e21e LW |
3911 | if (strEQ(d,"endgrent")) return -KEY_endgrent; |
3912 | if (strEQ(d,"endpwent")) return -KEY_endpwent; | |
79072805 LW |
3913 | break; |
3914 | case 9: | |
a0d0e21e | 3915 | if (strEQ(d,"endnetent")) return -KEY_endnetent; |
79072805 LW |
3916 | break; |
3917 | case 10: | |
a0d0e21e LW |
3918 | if (strEQ(d,"endhostent")) return -KEY_endhostent; |
3919 | if (strEQ(d,"endservent")) return -KEY_endservent; | |
79072805 LW |
3920 | break; |
3921 | case 11: | |
a0d0e21e | 3922 | if (strEQ(d,"endprotoent")) return -KEY_endprotoent; |
79072805 | 3923 | break; |
a687059c | 3924 | } |
a687059c | 3925 | break; |
79072805 LW |
3926 | case 'f': |
3927 | switch (len) { | |
3928 | case 3: | |
3929 | if (strEQ(d,"for")) return KEY_for; | |
3930 | break; | |
3931 | case 4: | |
a0d0e21e | 3932 | if (strEQ(d,"fork")) return -KEY_fork; |
79072805 LW |
3933 | break; |
3934 | case 5: | |
a0d0e21e LW |
3935 | if (strEQ(d,"fcntl")) return -KEY_fcntl; |
3936 | if (strEQ(d,"flock")) return -KEY_flock; | |
79072805 LW |
3937 | break; |
3938 | case 6: | |
3939 | if (strEQ(d,"format")) return KEY_format; | |
a0d0e21e | 3940 | if (strEQ(d,"fileno")) return -KEY_fileno; |
79072805 LW |
3941 | break; |
3942 | case 7: | |
3943 | if (strEQ(d,"foreach")) return KEY_foreach; | |
3944 | break; | |
3945 | case 8: | |
a0d0e21e | 3946 | if (strEQ(d,"formline")) return -KEY_formline; |
79072805 | 3947 | break; |
378cc40b | 3948 | } |
a687059c | 3949 | break; |
79072805 LW |
3950 | case 'G': |
3951 | if (len == 2) { | |
a0d0e21e LW |
3952 | if (strEQ(d,"GT")) { deprecate(d); return -KEY_gt;} |
3953 | if (strEQ(d,"GE")) { deprecate(d); return -KEY_ge;} | |
9f68db38 | 3954 | } |
a687059c | 3955 | break; |
79072805 | 3956 | case 'g': |
a687059c LW |
3957 | if (strnEQ(d,"get",3)) { |
3958 | d += 3; | |
3959 | if (*d == 'p') { | |
79072805 LW |
3960 | switch (len) { |
3961 | case 7: | |
a0d0e21e LW |
3962 | if (strEQ(d,"ppid")) return -KEY_getppid; |
3963 | if (strEQ(d,"pgrp")) return -KEY_getpgrp; | |
79072805 LW |
3964 | break; |
3965 | case 8: | |
a0d0e21e LW |
3966 | if (strEQ(d,"pwent")) return -KEY_getpwent; |
3967 | if (strEQ(d,"pwnam")) return -KEY_getpwnam; | |
3968 | if (strEQ(d,"pwuid")) return -KEY_getpwuid; | |
79072805 LW |
3969 | break; |
3970 | case 11: | |
a0d0e21e LW |
3971 | if (strEQ(d,"peername")) return -KEY_getpeername; |
3972 | if (strEQ(d,"protoent")) return -KEY_getprotoent; | |
3973 | if (strEQ(d,"priority")) return -KEY_getpriority; | |
79072805 LW |
3974 | break; |
3975 | case 14: | |
a0d0e21e | 3976 | if (strEQ(d,"protobyname")) return -KEY_getprotobyname; |
79072805 LW |
3977 | break; |
3978 | case 16: | |
a0d0e21e | 3979 | if (strEQ(d,"protobynumber"))return -KEY_getprotobynumber; |
79072805 LW |
3980 | break; |
3981 | } | |
a687059c LW |
3982 | } |
3983 | else if (*d == 'h') { | |
a0d0e21e LW |
3984 | if (strEQ(d,"hostbyname")) return -KEY_gethostbyname; |
3985 | if (strEQ(d,"hostbyaddr")) return -KEY_gethostbyaddr; | |
3986 | if (strEQ(d,"hostent")) return -KEY_gethostent; | |
a687059c LW |
3987 | } |
3988 | else if (*d == 'n') { | |
a0d0e21e LW |
3989 | if (strEQ(d,"netbyname")) return -KEY_getnetbyname; |
3990 | if (strEQ(d,"netbyaddr")) return -KEY_getnetbyaddr; | |
3991 | if (strEQ(d,"netent")) return -KEY_getnetent; | |
a687059c LW |
3992 | } |
3993 | else if (*d == 's') { | |
a0d0e21e LW |
3994 | if (strEQ(d,"servbyname")) return -KEY_getservbyname; |
3995 | if (strEQ(d,"servbyport")) return -KEY_getservbyport; | |
3996 | if (strEQ(d,"servent")) return -KEY_getservent; | |
3997 | if (strEQ(d,"sockname")) return -KEY_getsockname; | |
3998 | if (strEQ(d,"sockopt")) return -KEY_getsockopt; | |
a687059c LW |
3999 | } |
4000 | else if (*d == 'g') { | |
a0d0e21e LW |
4001 | if (strEQ(d,"grent")) return -KEY_getgrent; |
4002 | if (strEQ(d,"grnam")) return -KEY_getgrnam; | |
4003 | if (strEQ(d,"grgid")) return -KEY_getgrgid; | |
a687059c LW |
4004 | } |
4005 | else if (*d == 'l') { | |
a0d0e21e | 4006 | if (strEQ(d,"login")) return -KEY_getlogin; |
a687059c | 4007 | } |
a0d0e21e | 4008 | else if (strEQ(d,"c")) return -KEY_getc; |
79072805 | 4009 | break; |
a687059c | 4010 | } |
79072805 LW |
4011 | switch (len) { |
4012 | case 2: | |
a0d0e21e LW |
4013 | if (strEQ(d,"gt")) return -KEY_gt; |
4014 | if (strEQ(d,"ge")) return -KEY_ge; | |
79072805 LW |
4015 | break; |
4016 | case 4: | |
4017 | if (strEQ(d,"grep")) return KEY_grep; | |
4018 | if (strEQ(d,"goto")) return KEY_goto; | |
fb73857a | 4019 | if (strEQ(d,"glob")) return KEY_glob; |
79072805 LW |
4020 | break; |
4021 | case 6: | |
a0d0e21e | 4022 | if (strEQ(d,"gmtime")) return -KEY_gmtime; |
79072805 | 4023 | break; |
378cc40b | 4024 | } |
a687059c | 4025 | break; |
79072805 | 4026 | case 'h': |
a0d0e21e | 4027 | if (strEQ(d,"hex")) return -KEY_hex; |
a687059c | 4028 | break; |
7d07dbc2 MB |
4029 | case 'I': |
4030 | if (strEQ(d,"INIT")) return KEY_INIT; | |
4031 | break; | |
79072805 LW |
4032 | case 'i': |
4033 | switch (len) { | |
4034 | case 2: | |
4035 | if (strEQ(d,"if")) return KEY_if; | |
4036 | break; | |
4037 | case 3: | |
a0d0e21e | 4038 | if (strEQ(d,"int")) return -KEY_int; |
79072805 LW |
4039 | break; |
4040 | case 5: | |
a0d0e21e LW |
4041 | if (strEQ(d,"index")) return -KEY_index; |
4042 | if (strEQ(d,"ioctl")) return -KEY_ioctl; | |
79072805 LW |
4043 | break; |
4044 | } | |
a687059c | 4045 | break; |
79072805 | 4046 | case 'j': |
a0d0e21e | 4047 | if (strEQ(d,"join")) return -KEY_join; |
a687059c | 4048 | break; |
79072805 LW |
4049 | case 'k': |
4050 | if (len == 4) { | |
4051 | if (strEQ(d,"keys")) return KEY_keys; | |
a0d0e21e | 4052 | if (strEQ(d,"kill")) return -KEY_kill; |
663a0e37 | 4053 | } |
79072805 LW |
4054 | break; |
4055 | case 'L': | |
4056 | if (len == 2) { | |
a0d0e21e LW |
4057 | if (strEQ(d,"LT")) { deprecate(d); return -KEY_lt;} |
4058 | if (strEQ(d,"LE")) { deprecate(d); return -KEY_le;} | |
378cc40b | 4059 | } |
79072805 LW |
4060 | break; |
4061 | case 'l': | |
4062 | switch (len) { | |
4063 | case 2: | |
a0d0e21e LW |
4064 | if (strEQ(d,"lt")) return -KEY_lt; |
4065 | if (strEQ(d,"le")) return -KEY_le; | |
4066 | if (strEQ(d,"lc")) return -KEY_lc; | |
79072805 LW |
4067 | break; |
4068 | case 3: | |
a0d0e21e | 4069 | if (strEQ(d,"log")) return -KEY_log; |
79072805 LW |
4070 | break; |
4071 | case 4: | |
4072 | if (strEQ(d,"last")) return KEY_last; | |
a0d0e21e | 4073 | if (strEQ(d,"link")) return -KEY_link; |
c0329465 | 4074 | if (strEQ(d,"lock")) return -KEY_lock; |
395c3793 | 4075 | break; |
79072805 LW |
4076 | case 5: |
4077 | if (strEQ(d,"local")) return KEY_local; | |
a0d0e21e | 4078 | if (strEQ(d,"lstat")) return -KEY_lstat; |
79072805 LW |
4079 | break; |
4080 | case 6: | |
a0d0e21e LW |
4081 | if (strEQ(d,"length")) return -KEY_length; |
4082 | if (strEQ(d,"listen")) return -KEY_listen; | |
79072805 LW |
4083 | break; |
4084 | case 7: | |
a0d0e21e | 4085 | if (strEQ(d,"lcfirst")) return -KEY_lcfirst; |
79072805 LW |
4086 | break; |
4087 | case 9: | |
a0d0e21e | 4088 | if (strEQ(d,"localtime")) return -KEY_localtime; |
395c3793 LW |
4089 | break; |
4090 | } | |
a687059c | 4091 | break; |
79072805 LW |
4092 | case 'm': |
4093 | switch (len) { | |
4094 | case 1: return KEY_m; | |
93a17b20 LW |
4095 | case 2: |
4096 | if (strEQ(d,"my")) return KEY_my; | |
4097 | break; | |
a0d0e21e LW |
4098 | case 3: |
4099 | if (strEQ(d,"map")) return KEY_map; | |
4100 | break; | |
79072805 | 4101 | case 5: |
a0d0e21e | 4102 | if (strEQ(d,"mkdir")) return -KEY_mkdir; |
79072805 LW |
4103 | break; |
4104 | case 6: | |
a0d0e21e LW |
4105 | if (strEQ(d,"msgctl")) return -KEY_msgctl; |
4106 | if (strEQ(d,"msgget")) return -KEY_msgget; | |
4107 | if (strEQ(d,"msgrcv")) return -KEY_msgrcv; | |
4108 | if (strEQ(d,"msgsnd")) return -KEY_msgsnd; | |
79072805 LW |
4109 | break; |
4110 | } | |
a687059c | 4111 | break; |
79072805 | 4112 | case 'N': |
a0d0e21e | 4113 | if (strEQ(d,"NE")) { deprecate(d); return -KEY_ne;} |
a687059c | 4114 | break; |
79072805 LW |
4115 | case 'n': |
4116 | if (strEQ(d,"next")) return KEY_next; | |
a0d0e21e LW |
4117 | if (strEQ(d,"ne")) return -KEY_ne; |
4118 | if (strEQ(d,"not")) return -KEY_not; | |
4119 | if (strEQ(d,"no")) return KEY_no; | |
a687059c | 4120 | break; |
79072805 LW |
4121 | case 'o': |
4122 | switch (len) { | |
463ee0b2 | 4123 | case 2: |
a0d0e21e | 4124 | if (strEQ(d,"or")) return -KEY_or; |
463ee0b2 | 4125 | break; |
79072805 | 4126 | case 3: |
a0d0e21e LW |
4127 | if (strEQ(d,"ord")) return -KEY_ord; |
4128 | if (strEQ(d,"oct")) return -KEY_oct; | |
79072805 LW |
4129 | break; |
4130 | case 4: | |
a0d0e21e | 4131 | if (strEQ(d,"open")) return -KEY_open; |
79072805 LW |
4132 | break; |
4133 | case 7: | |
a0d0e21e | 4134 | if (strEQ(d,"opendir")) return -KEY_opendir; |
79072805 | 4135 | break; |
fe14fcc3 | 4136 | } |
a687059c | 4137 | break; |
79072805 LW |
4138 | case 'p': |
4139 | switch (len) { | |
4140 | case 3: | |
4141 | if (strEQ(d,"pop")) return KEY_pop; | |
a0d0e21e | 4142 | if (strEQ(d,"pos")) return KEY_pos; |
79072805 LW |
4143 | break; |
4144 | case 4: | |
4145 | if (strEQ(d,"push")) return KEY_push; | |
a0d0e21e LW |
4146 | if (strEQ(d,"pack")) return -KEY_pack; |
4147 | if (strEQ(d,"pipe")) return -KEY_pipe; | |
79072805 LW |
4148 | break; |
4149 | case 5: | |
4150 | if (strEQ(d,"print")) return KEY_print; | |
4151 | break; | |
4152 | case 6: | |
4153 | if (strEQ(d,"printf")) return KEY_printf; | |
4154 | break; | |
4155 | case 7: | |
4156 | if (strEQ(d,"package")) return KEY_package; | |
4157 | break; | |
c07a80fd | 4158 | case 9: |
4159 | if (strEQ(d,"prototype")) return KEY_prototype; | |
663a0e37 | 4160 | } |
79072805 LW |
4161 | break; |
4162 | case 'q': | |
4163 | if (len <= 2) { | |
4164 | if (strEQ(d,"q")) return KEY_q; | |
4165 | if (strEQ(d,"qq")) return KEY_qq; | |
8990e307 | 4166 | if (strEQ(d,"qw")) return KEY_qw; |
79072805 | 4167 | if (strEQ(d,"qx")) return KEY_qx; |
663a0e37 | 4168 | } |
a0d0e21e | 4169 | else if (strEQ(d,"quotemeta")) return -KEY_quotemeta; |
79072805 LW |
4170 | break; |
4171 | case 'r': | |
4172 | switch (len) { | |
4173 | case 3: | |
a0d0e21e | 4174 | if (strEQ(d,"ref")) return -KEY_ref; |
79072805 LW |
4175 | break; |
4176 | case 4: | |
a0d0e21e LW |
4177 | if (strEQ(d,"read")) return -KEY_read; |
4178 | if (strEQ(d,"rand")) return -KEY_rand; | |
4179 | if (strEQ(d,"recv")) return -KEY_recv; | |
79072805 LW |
4180 | if (strEQ(d,"redo")) return KEY_redo; |
4181 | break; | |
4182 | case 5: | |
a0d0e21e LW |
4183 | if (strEQ(d,"rmdir")) return -KEY_rmdir; |
4184 | if (strEQ(d,"reset")) return -KEY_reset; | |
79072805 LW |
4185 | break; |
4186 | case 6: | |
4187 | if (strEQ(d,"return")) return KEY_return; | |
a0d0e21e LW |
4188 | if (strEQ(d,"rename")) return -KEY_rename; |
4189 | if (strEQ(d,"rindex")) return -KEY_rindex; | |
79072805 LW |
4190 | break; |
4191 | case 7: | |
a0d0e21e LW |
4192 | if (strEQ(d,"require")) return -KEY_require; |
4193 | if (strEQ(d,"reverse")) return -KEY_reverse; | |
4194 | if (strEQ(d,"readdir")) return -KEY_readdir; | |
79072805 LW |
4195 | break; |
4196 | case 8: | |
a0d0e21e LW |
4197 | if (strEQ(d,"readlink")) return -KEY_readlink; |
4198 | if (strEQ(d,"readline")) return -KEY_readline; | |
4199 | if (strEQ(d,"readpipe")) return -KEY_readpipe; | |
79072805 LW |
4200 | break; |
4201 | case 9: | |
a0d0e21e | 4202 | if (strEQ(d,"rewinddir")) return -KEY_rewinddir; |
79072805 | 4203 | break; |
a687059c | 4204 | } |
79072805 LW |
4205 | break; |
4206 | case 's': | |
a687059c | 4207 | switch (d[1]) { |
79072805 | 4208 | case 0: return KEY_s; |
a687059c | 4209 | case 'c': |
79072805 | 4210 | if (strEQ(d,"scalar")) return KEY_scalar; |
a687059c LW |
4211 | break; |
4212 | case 'e': | |
79072805 LW |
4213 | switch (len) { |
4214 | case 4: | |
a0d0e21e LW |
4215 | if (strEQ(d,"seek")) return -KEY_seek; |
4216 | if (strEQ(d,"send")) return -KEY_send; | |
79072805 LW |
4217 | break; |
4218 | case 5: | |
a0d0e21e | 4219 | if (strEQ(d,"semop")) return -KEY_semop; |
79072805 LW |
4220 | break; |
4221 | case 6: | |
a0d0e21e LW |
4222 | if (strEQ(d,"select")) return -KEY_select; |
4223 | if (strEQ(d,"semctl")) return -KEY_semctl; | |
4224 | if (strEQ(d,"semget")) return -KEY_semget; | |
79072805 LW |
4225 | break; |
4226 | case 7: | |
a0d0e21e LW |
4227 | if (strEQ(d,"setpgrp")) return -KEY_setpgrp; |
4228 | if (strEQ(d,"seekdir")) return -KEY_seekdir; | |
79072805 LW |
4229 | break; |
4230 | case 8: | |
a0d0e21e LW |
4231 | if (strEQ(d,"setpwent")) return -KEY_setpwent; |
4232 | if (strEQ(d,"setgrent")) return -KEY_setgrent; | |
79072805 LW |
4233 | break; |
4234 | case 9: | |
a0d0e21e | 4235 | if (strEQ(d,"setnetent")) return -KEY_setnetent; |
79072805 LW |
4236 | break; |
4237 | case 10: | |
a0d0e21e LW |
4238 | if (strEQ(d,"setsockopt")) return -KEY_setsockopt; |
4239 | if (strEQ(d,"sethostent")) return -KEY_sethostent; | |
4240 | if (strEQ(d,"setservent")) return -KEY_setservent; | |
79072805 LW |
4241 | break; |
4242 | case 11: | |
a0d0e21e LW |
4243 | if (strEQ(d,"setpriority")) return -KEY_setpriority; |
4244 | if (strEQ(d,"setprotoent")) return -KEY_setprotoent; | |
79072805 LW |
4245 | break; |
4246 | } | |
a687059c LW |
4247 | break; |
4248 | case 'h': | |
79072805 LW |
4249 | switch (len) { |
4250 | case 5: | |
4251 | if (strEQ(d,"shift")) return KEY_shift; | |
4252 | break; | |
4253 | case 6: | |
a0d0e21e LW |
4254 | if (strEQ(d,"shmctl")) return -KEY_shmctl; |
4255 | if (strEQ(d,"shmget")) return -KEY_shmget; | |
79072805 LW |
4256 | break; |
4257 | case 7: | |
a0d0e21e | 4258 | if (strEQ(d,"shmread")) return -KEY_shmread; |
79072805 LW |
4259 | break; |
4260 | case 8: | |
a0d0e21e LW |
4261 | if (strEQ(d,"shmwrite")) return -KEY_shmwrite; |
4262 | if (strEQ(d,"shutdown")) return -KEY_shutdown; | |
79072805 LW |
4263 | break; |
4264 | } | |
a687059c LW |
4265 | break; |
4266 | case 'i': | |
a0d0e21e | 4267 | if (strEQ(d,"sin")) return -KEY_sin; |
a687059c LW |
4268 | break; |
4269 | case 'l': | |
a0d0e21e | 4270 | if (strEQ(d,"sleep")) return -KEY_sleep; |
a687059c LW |
4271 | break; |
4272 | case 'o': | |
79072805 | 4273 | if (strEQ(d,"sort")) return KEY_sort; |
a0d0e21e LW |
4274 | if (strEQ(d,"socket")) return -KEY_socket; |
4275 | if (strEQ(d,"socketpair")) return -KEY_socketpair; | |
a687059c LW |
4276 | break; |
4277 | case 'p': | |
79072805 | 4278 | if (strEQ(d,"split")) return KEY_split; |
a0d0e21e | 4279 | if (strEQ(d,"sprintf")) return -KEY_sprintf; |
79072805 | 4280 | if (strEQ(d,"splice")) return KEY_splice; |
a687059c LW |
4281 | break; |
4282 | case 'q': | |
a0d0e21e | 4283 | if (strEQ(d,"sqrt")) return -KEY_sqrt; |
a687059c LW |
4284 | break; |
4285 | case 'r': | |
a0d0e21e | 4286 | if (strEQ(d,"srand")) return -KEY_srand; |
a687059c LW |
4287 | break; |
4288 | case 't': | |
a0d0e21e | 4289 | if (strEQ(d,"stat")) return -KEY_stat; |
79072805 | 4290 | if (strEQ(d,"study")) return KEY_study; |
a687059c LW |
4291 | break; |
4292 | case 'u': | |
a0d0e21e | 4293 | if (strEQ(d,"substr")) return -KEY_substr; |
79072805 | 4294 | if (strEQ(d,"sub")) return KEY_sub; |
a687059c LW |
4295 | break; |
4296 | case 'y': | |
79072805 LW |
4297 | switch (len) { |
4298 | case 6: | |
a0d0e21e | 4299 | if (strEQ(d,"system")) return -KEY_system; |
79072805 LW |
4300 | break; |
4301 | case 7: | |
a0d0e21e LW |
4302 | if (strEQ(d,"symlink")) return -KEY_symlink; |
4303 | if (strEQ(d,"syscall")) return -KEY_syscall; | |
137443ea | 4304 | if (strEQ(d,"sysopen")) return -KEY_sysopen; |
4305 | if (strEQ(d,"sysread")) return -KEY_sysread; | |
4306 | if (strEQ(d,"sysseek")) return -KEY_sysseek; | |
79072805 LW |
4307 | break; |
4308 | case 8: | |
a0d0e21e | 4309 | if (strEQ(d,"syswrite")) return -KEY_syswrite; |
79072805 | 4310 | break; |
a687059c | 4311 | } |
a687059c LW |
4312 | break; |
4313 | } | |
4314 | break; | |
79072805 LW |
4315 | case 't': |
4316 | switch (len) { | |
4317 | case 2: | |
4318 | if (strEQ(d,"tr")) return KEY_tr; | |
4319 | break; | |
463ee0b2 LW |
4320 | case 3: |
4321 | if (strEQ(d,"tie")) return KEY_tie; | |
4322 | break; | |
79072805 | 4323 | case 4: |
a0d0e21e | 4324 | if (strEQ(d,"tell")) return -KEY_tell; |
c07a80fd | 4325 | if (strEQ(d,"tied")) return KEY_tied; |
a0d0e21e | 4326 | if (strEQ(d,"time")) return -KEY_time; |
79072805 LW |
4327 | break; |
4328 | case 5: | |
a0d0e21e | 4329 | if (strEQ(d,"times")) return -KEY_times; |
79072805 LW |
4330 | break; |
4331 | case 7: | |
a0d0e21e | 4332 | if (strEQ(d,"telldir")) return -KEY_telldir; |
79072805 LW |
4333 | break; |
4334 | case 8: | |
a0d0e21e | 4335 | if (strEQ(d,"truncate")) return -KEY_truncate; |
79072805 | 4336 | break; |
378cc40b | 4337 | } |
a687059c | 4338 | break; |
79072805 LW |
4339 | case 'u': |
4340 | switch (len) { | |
4341 | case 2: | |
a0d0e21e LW |
4342 | if (strEQ(d,"uc")) return -KEY_uc; |
4343 | break; | |
4344 | case 3: | |
4345 | if (strEQ(d,"use")) return KEY_use; | |
79072805 LW |
4346 | break; |
4347 | case 5: | |
4348 | if (strEQ(d,"undef")) return KEY_undef; | |
4349 | if (strEQ(d,"until")) return KEY_until; | |
463ee0b2 | 4350 | if (strEQ(d,"untie")) return KEY_untie; |
a0d0e21e LW |
4351 | if (strEQ(d,"utime")) return -KEY_utime; |
4352 | if (strEQ(d,"umask")) return -KEY_umask; | |
79072805 LW |
4353 | break; |
4354 | case 6: | |
4355 | if (strEQ(d,"unless")) return KEY_unless; | |
a0d0e21e LW |
4356 | if (strEQ(d,"unpack")) return -KEY_unpack; |
4357 | if (strEQ(d,"unlink")) return -KEY_unlink; | |
79072805 LW |
4358 | break; |
4359 | case 7: | |
4360 | if (strEQ(d,"unshift")) return KEY_unshift; | |
a0d0e21e | 4361 | if (strEQ(d,"ucfirst")) return -KEY_ucfirst; |
79072805 | 4362 | break; |
a687059c LW |
4363 | } |
4364 | break; | |
79072805 | 4365 | case 'v': |
a0d0e21e LW |
4366 | if (strEQ(d,"values")) return -KEY_values; |
4367 | if (strEQ(d,"vec")) return -KEY_vec; | |
a687059c | 4368 | break; |
79072805 LW |
4369 | case 'w': |
4370 | switch (len) { | |
4371 | case 4: | |
a0d0e21e LW |
4372 | if (strEQ(d,"warn")) return -KEY_warn; |
4373 | if (strEQ(d,"wait")) return -KEY_wait; | |
79072805 LW |
4374 | break; |
4375 | case 5: | |
4376 | if (strEQ(d,"while")) return KEY_while; | |
a0d0e21e | 4377 | if (strEQ(d,"write")) return -KEY_write; |
79072805 LW |
4378 | break; |
4379 | case 7: | |
a0d0e21e | 4380 | if (strEQ(d,"waitpid")) return -KEY_waitpid; |
79072805 LW |
4381 | break; |
4382 | case 9: | |
a0d0e21e | 4383 | if (strEQ(d,"wantarray")) return -KEY_wantarray; |
79072805 | 4384 | break; |
2f3197b3 | 4385 | } |
a687059c | 4386 | break; |
79072805 | 4387 | case 'x': |
a0d0e21e LW |
4388 | if (len == 1) return -KEY_x; |
4389 | if (strEQ(d,"xor")) return -KEY_xor; | |
a687059c | 4390 | break; |
79072805 LW |
4391 | case 'y': |
4392 | if (len == 1) return KEY_y; | |
4393 | break; | |
4394 | case 'z': | |
a687059c LW |
4395 | break; |
4396 | } | |
79072805 | 4397 | return 0; |
a687059c LW |
4398 | } |
4399 | ||
8990e307 | 4400 | static void |
2f3197b3 | 4401 | checkcomma(s,name,what) |
a687059c | 4402 | register char *s; |
2f3197b3 | 4403 | char *name; |
a687059c LW |
4404 | char *what; |
4405 | { | |
2f3197b3 LW |
4406 | char *w; |
4407 | ||
463ee0b2 | 4408 | if (dowarn && *s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
a0d0e21e LW |
4409 | int level = 1; |
4410 | for (w = s+2; *w && level; w++) { | |
4411 | if (*w == '(') | |
4412 | ++level; | |
4413 | else if (*w == ')') | |
4414 | --level; | |
4415 | } | |
4416 | if (*w) | |
4417 | for (; *w && isSPACE(*w); w++) ; | |
d1f3fb15 | 4418 | if (!*w || !strchr(";|})]oaiuw!=", *w)) /* an advisory hack only... */ |
2f3197b3 LW |
4419 | warn("%s (...) interpreted as function",name); |
4420 | } | |
4421 | while (s < bufend && isSPACE(*s)) | |
4422 | s++; | |
a687059c LW |
4423 | if (*s == '(') |
4424 | s++; | |
de3bb511 | 4425 | while (s < bufend && isSPACE(*s)) |
a687059c | 4426 | s++; |
79072805 | 4427 | if (isIDFIRST(*s)) { |
2f3197b3 | 4428 | w = s++; |
de3bb511 | 4429 | while (isALNUM(*s)) |
a687059c | 4430 | s++; |
de3bb511 | 4431 | while (s < bufend && isSPACE(*s)) |
a687059c | 4432 | s++; |
e929a76b | 4433 | if (*s == ',') { |
463ee0b2 | 4434 | int kw; |
e929a76b | 4435 | *s = '\0'; |
4633a7c4 | 4436 | kw = keyword(w, s - w) || perl_get_cv(w, FALSE) != 0; |
e929a76b | 4437 | *s = ','; |
463ee0b2 | 4438 | if (kw) |
e929a76b | 4439 | return; |
463ee0b2 LW |
4440 | croak("No comma allowed after %s", what); |
4441 | } | |
4442 | } | |
4443 | } | |
4444 | ||
8990e307 | 4445 | static char * |
8903cb82 | 4446 | scan_word(s, dest, destlen, allow_package, slp) |
463ee0b2 LW |
4447 | register char *s; |
4448 | char *dest; | |
8903cb82 | 4449 | STRLEN destlen; |
463ee0b2 LW |
4450 | int allow_package; |
4451 | STRLEN *slp; | |
4452 | { | |
4453 | register char *d = dest; | |
8903cb82 | 4454 | register char *e = d + destlen - 3; /* two-character token, ending NUL */ |
463ee0b2 | 4455 | for (;;) { |
8903cb82 | 4456 | if (d >= e) |
fc36a67e | 4457 | croak(ident_too_long); |
463ee0b2 LW |
4458 | if (isALNUM(*s)) |
4459 | *d++ = *s++; | |
4460 | else if (*s == '\'' && allow_package && isIDFIRST(s[1])) { | |
4461 | *d++ = ':'; | |
4462 | *d++ = ':'; | |
4463 | s++; | |
4464 | } | |
4465 | else if (*s == ':' && s[1] == ':' && allow_package && isIDFIRST(s[2])) { | |
4466 | *d++ = *s++; | |
4467 | *d++ = *s++; | |
4468 | } | |
4469 | else { | |
4470 | *d = '\0'; | |
4471 | *slp = d - dest; | |
4472 | return s; | |
e929a76b | 4473 | } |
378cc40b LW |
4474 | } |
4475 | } | |
4476 | ||
8990e307 | 4477 | static char * |
8903cb82 | 4478 | scan_ident(s, send, dest, destlen, ck_uni) |
378cc40b | 4479 | register char *s; |
a687059c | 4480 | register char *send; |
378cc40b | 4481 | char *dest; |
8903cb82 | 4482 | STRLEN destlen; |
79072805 | 4483 | I32 ck_uni; |
378cc40b LW |
4484 | { |
4485 | register char *d; | |
8903cb82 | 4486 | register char *e; |
79072805 | 4487 | char *bracket = 0; |
748a9306 | 4488 | char funny = *s++; |
378cc40b | 4489 | |
79072805 LW |
4490 | if (lex_brackets == 0) |
4491 | lex_fakebrack = 0; | |
a0d0e21e LW |
4492 | if (isSPACE(*s)) |
4493 | s = skipspace(s); | |
378cc40b | 4494 | d = dest; |
8903cb82 | 4495 | e = d + destlen - 3; /* two-character token, ending NUL */ |
de3bb511 | 4496 | if (isDIGIT(*s)) { |
8903cb82 | 4497 | while (isDIGIT(*s)) { |
4498 | if (d >= e) | |
fc36a67e | 4499 | croak(ident_too_long); |
378cc40b | 4500 | *d++ = *s++; |
8903cb82 | 4501 | } |
378cc40b LW |
4502 | } |
4503 | else { | |
463ee0b2 | 4504 | for (;;) { |
8903cb82 | 4505 | if (d >= e) |
fc36a67e | 4506 | croak(ident_too_long); |
463ee0b2 LW |
4507 | if (isALNUM(*s)) |
4508 | *d++ = *s++; | |
4509 | else if (*s == '\'' && isIDFIRST(s[1])) { | |
4510 | *d++ = ':'; | |
4511 | *d++ = ':'; | |
4512 | s++; | |
4513 | } | |
a0d0e21e | 4514 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
4515 | *d++ = *s++; |
4516 | *d++ = *s++; | |
4517 | } | |
4518 | else | |
4519 | break; | |
4520 | } | |
378cc40b LW |
4521 | } |
4522 | *d = '\0'; | |
4523 | d = dest; | |
79072805 LW |
4524 | if (*d) { |
4525 | if (lex_state != LEX_NORMAL) | |
4526 | lex_state = LEX_INTERPENDMAYBE; | |
4527 | return s; | |
378cc40b | 4528 | } |
748a9306 | 4529 | if (*s == '$' && s[1] && |
ff0cee69 | 4530 | (isALNUM(s[1]) || strchr("${", s[1]) || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 4531 | { |
4532 | if (isDIGIT(s[1]) && lex_state == LEX_INTERPNORMAL) | |
4533 | deprecate("\"$$<digit>\" to mean \"${$}<digit>\""); | |
4534 | else | |
4535 | return s; | |
4536 | } | |
79072805 LW |
4537 | if (*s == '{') { |
4538 | bracket = s; | |
4539 | s++; | |
4540 | } | |
4541 | else if (ck_uni) | |
4542 | check_uni(); | |
93a17b20 | 4543 | if (s < send) |
79072805 LW |
4544 | *d = *s++; |
4545 | d[1] = '\0'; | |
748a9306 | 4546 | if (*d == '^' && *s && (isUPPER(*s) || strchr("[\\]^_?", *s))) { |
bbce6d69 | 4547 | *d = toCTRL(*s); |
4548 | s++; | |
de3bb511 | 4549 | } |
79072805 | 4550 | if (bracket) { |
748a9306 | 4551 | if (isSPACE(s[-1])) { |
fa83b5b6 | 4552 | while (s < send) { |
4553 | char ch = *s++; | |
4554 | if (ch != ' ' && ch != '\t') { | |
4555 | *d = ch; | |
4556 | break; | |
4557 | } | |
4558 | } | |
748a9306 | 4559 | } |
ff68c719 | 4560 | if (isIDFIRST(*d)) { |
79072805 | 4561 | d++; |
748a9306 | 4562 | while (isALNUM(*s) || *s == ':') |
79072805 LW |
4563 | *d++ = *s++; |
4564 | *d = '\0'; | |
748a9306 | 4565 | while (s < send && (*s == ' ' || *s == '\t')) s++; |
ff68c719 | 4566 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
748a9306 LW |
4567 | if (dowarn && keyword(dest, d - dest)) { |
4568 | char *brack = *s == '[' ? "[...]" : "{...}"; | |
4569 | warn("Ambiguous use of %c{%s%s} resolved to %c%s%s", | |
4570 | funny, dest, brack, funny, dest, brack); | |
4571 | } | |
4572 | lex_fakebrack = lex_brackets+1; | |
79072805 | 4573 | bracket++; |
a0d0e21e | 4574 | lex_brackstack[lex_brackets++] = XOPERATOR; |
79072805 LW |
4575 | return s; |
4576 | } | |
4577 | } | |
4578 | if (*s == '}') { | |
4579 | s++; | |
4580 | if (lex_state == LEX_INTERPNORMAL && !lex_brackets) | |
4581 | lex_state = LEX_INTERPEND; | |
748a9306 LW |
4582 | if (funny == '#') |
4583 | funny = '@'; | |
84902520 | 4584 | if (dowarn && lex_state == LEX_NORMAL && |
748a9306 LW |
4585 | (keyword(dest, d - dest) || perl_get_cv(dest, FALSE))) |
4586 | warn("Ambiguous use of %c{%s} resolved to %c%s", | |
4587 | funny, dest, funny, dest); | |
79072805 LW |
4588 | } |
4589 | else { | |
4590 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 4591 | *dest = '\0'; |
79072805 LW |
4592 | } |
4593 | } | |
4594 | else if (lex_state == LEX_INTERPNORMAL && !lex_brackets && !intuit_more(s)) | |
4595 | lex_state = LEX_INTERPEND; | |
378cc40b LW |
4596 | return s; |
4597 | } | |
4598 | ||
a0d0e21e LW |
4599 | void pmflag(pmfl,ch) |
4600 | U16* pmfl; | |
4601 | int ch; | |
4602 | { | |
bbce6d69 | 4603 | if (ch == 'i') |
a0d0e21e | 4604 | *pmfl |= PMf_FOLD; |
a0d0e21e LW |
4605 | else if (ch == 'g') |
4606 | *pmfl |= PMf_GLOBAL; | |
c90c0ff4 | 4607 | else if (ch == 'c') |
4608 | *pmfl |= PMf_CONTINUE; | |
a0d0e21e LW |
4609 | else if (ch == 'o') |
4610 | *pmfl |= PMf_KEEP; | |
4611 | else if (ch == 'm') | |
4612 | *pmfl |= PMf_MULTILINE; | |
4613 | else if (ch == 's') | |
4614 | *pmfl |= PMf_SINGLELINE; | |
4615 | else if (ch == 'x') | |
4616 | *pmfl |= PMf_EXTENDED; | |
4617 | } | |
378cc40b | 4618 | |
8990e307 | 4619 | static char * |
79072805 LW |
4620 | scan_pat(start) |
4621 | char *start; | |
378cc40b | 4622 | { |
79072805 LW |
4623 | PMOP *pm; |
4624 | char *s; | |
378cc40b | 4625 | |
79072805 LW |
4626 | s = scan_str(start); |
4627 | if (!s) { | |
4628 | if (lex_stuff) | |
8990e307 | 4629 | SvREFCNT_dec(lex_stuff); |
79072805 | 4630 | lex_stuff = Nullsv; |
463ee0b2 | 4631 | croak("Search pattern not terminated"); |
378cc40b | 4632 | } |
bbce6d69 | 4633 | |
79072805 | 4634 | pm = (PMOP*)newPMOP(OP_MATCH, 0); |
a0d0e21e | 4635 | if (multi_open == '?') |
79072805 | 4636 | pm->op_pmflags |= PMf_ONCE; |
c90c0ff4 | 4637 | while (*s && strchr("iogcmsx", *s)) |
a0d0e21e | 4638 | pmflag(&pm->op_pmflags,*s++); |
4633a7c4 | 4639 | pm->op_pmpermflags = pm->op_pmflags; |
bbce6d69 | 4640 | |
79072805 LW |
4641 | lex_op = (OP*)pm; |
4642 | yylval.ival = OP_MATCH; | |
378cc40b LW |
4643 | return s; |
4644 | } | |
4645 | ||
8990e307 | 4646 | static char * |
79072805 | 4647 | scan_subst(start) |
2f3197b3 | 4648 | char *start; |
79072805 | 4649 | { |
a0d0e21e | 4650 | register char *s; |
79072805 | 4651 | register PMOP *pm; |
4fdae800 | 4652 | I32 first_start; |
79072805 LW |
4653 | I32 es = 0; |
4654 | ||
79072805 LW |
4655 | yylval.ival = OP_NULL; |
4656 | ||
a0d0e21e | 4657 | s = scan_str(start); |
79072805 LW |
4658 | |
4659 | if (!s) { | |
4660 | if (lex_stuff) | |
8990e307 | 4661 | SvREFCNT_dec(lex_stuff); |
79072805 | 4662 | lex_stuff = Nullsv; |
463ee0b2 | 4663 | croak("Substitution pattern not terminated"); |
a687059c | 4664 | } |
79072805 | 4665 | |
a0d0e21e | 4666 | if (s[-1] == multi_open) |
79072805 LW |
4667 | s--; |
4668 | ||
4fdae800 | 4669 | first_start = multi_start; |
79072805 LW |
4670 | s = scan_str(s); |
4671 | if (!s) { | |
4672 | if (lex_stuff) | |
8990e307 | 4673 | SvREFCNT_dec(lex_stuff); |
79072805 LW |
4674 | lex_stuff = Nullsv; |
4675 | if (lex_repl) | |
8990e307 | 4676 | SvREFCNT_dec(lex_repl); |
79072805 | 4677 | lex_repl = Nullsv; |
463ee0b2 | 4678 | croak("Substitution replacement not terminated"); |
a687059c | 4679 | } |
4fdae800 | 4680 | multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 4681 | |
79072805 | 4682 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
c90c0ff4 | 4683 | while (*s && strchr("iogcmsex", *s)) { |
a687059c LW |
4684 | if (*s == 'e') { |
4685 | s++; | |
2f3197b3 | 4686 | es++; |
a687059c | 4687 | } |
a0d0e21e LW |
4688 | else |
4689 | pmflag(&pm->op_pmflags,*s++); | |
378cc40b | 4690 | } |
79072805 LW |
4691 | |
4692 | if (es) { | |
4693 | SV *repl; | |
4694 | pm->op_pmflags |= PMf_EVAL; | |
463ee0b2 LW |
4695 | repl = newSVpv("",0); |
4696 | while (es-- > 0) | |
a0d0e21e | 4697 | sv_catpv(repl, es ? "eval " : "do "); |
79072805 LW |
4698 | sv_catpvn(repl, "{ ", 2); |
4699 | sv_catsv(repl, lex_repl); | |
4700 | sv_catpvn(repl, " };", 2); | |
4701 | SvCOMPILED_on(repl); | |
8990e307 | 4702 | SvREFCNT_dec(lex_repl); |
79072805 | 4703 | lex_repl = repl; |
378cc40b | 4704 | } |
79072805 | 4705 | |
4633a7c4 | 4706 | pm->op_pmpermflags = pm->op_pmflags; |
79072805 LW |
4707 | lex_op = (OP*)pm; |
4708 | yylval.ival = OP_SUBST; | |
378cc40b LW |
4709 | return s; |
4710 | } | |
4711 | ||
1462b684 | 4712 | void |
79072805 LW |
4713 | hoistmust(pm) |
4714 | register PMOP *pm; | |
378cc40b | 4715 | { |
11343788 | 4716 | dTHR; |
79072805 LW |
4717 | if (!pm->op_pmshort && pm->op_pmregexp->regstart && |
4718 | (!pm->op_pmregexp->regmust || pm->op_pmregexp->reganch & ROPT_ANCH) | |
d48672a2 | 4719 | ) { |
79072805 LW |
4720 | if (!(pm->op_pmregexp->reganch & ROPT_ANCH)) |
4721 | pm->op_pmflags |= PMf_SCANFIRST; | |
8990e307 | 4722 | pm->op_pmshort = SvREFCNT_inc(pm->op_pmregexp->regstart); |
748a9306 | 4723 | pm->op_pmslen = SvCUR(pm->op_pmshort); |
d48672a2 | 4724 | } |
79072805 LW |
4725 | else if (pm->op_pmregexp->regmust) {/* is there a better short-circuit? */ |
4726 | if (pm->op_pmshort && | |
4727 | sv_eq(pm->op_pmshort,pm->op_pmregexp->regmust)) | |
a687059c | 4728 | { |
79072805 | 4729 | if (pm->op_pmflags & PMf_SCANFIRST) { |
8990e307 | 4730 | SvREFCNT_dec(pm->op_pmshort); |
79072805 | 4731 | pm->op_pmshort = Nullsv; |
378cc40b LW |
4732 | } |
4733 | else { | |
8990e307 | 4734 | SvREFCNT_dec(pm->op_pmregexp->regmust); |
79072805 | 4735 | pm->op_pmregexp->regmust = Nullsv; |
378cc40b LW |
4736 | return; |
4737 | } | |
4738 | } | |
774d564b | 4739 | /* promote the better string */ |
5cd24f17 | 4740 | if ((!pm->op_pmshort && |
4741 | !(pm->op_pmregexp->reganch & ROPT_ANCH_GPOS)) || | |
774d564b | 4742 | ((pm->op_pmflags & PMf_SCANFIRST) && |
4743 | (SvCUR(pm->op_pmshort) < SvCUR(pm->op_pmregexp->regmust)))) { | |
8990e307 | 4744 | SvREFCNT_dec(pm->op_pmshort); /* ok if null */ |
79072805 | 4745 | pm->op_pmshort = pm->op_pmregexp->regmust; |
748a9306 | 4746 | pm->op_pmslen = SvCUR(pm->op_pmshort); |
79072805 LW |
4747 | pm->op_pmregexp->regmust = Nullsv; |
4748 | pm->op_pmflags |= PMf_SCANFIRST; | |
378cc40b LW |
4749 | } |
4750 | } | |
4751 | } | |
4752 | ||
8990e307 | 4753 | static char * |
79072805 | 4754 | scan_trans(start) |
2f3197b3 | 4755 | char *start; |
378cc40b | 4756 | { |
a0d0e21e | 4757 | register char* s; |
11343788 | 4758 | OP *o; |
79072805 LW |
4759 | short *tbl; |
4760 | I32 squash; | |
4761 | I32 delete; | |
4762 | I32 complement; | |
4763 | ||
4764 | yylval.ival = OP_NULL; | |
4765 | ||
a0d0e21e | 4766 | s = scan_str(start); |
79072805 LW |
4767 | if (!s) { |
4768 | if (lex_stuff) | |
8990e307 | 4769 | SvREFCNT_dec(lex_stuff); |
79072805 | 4770 | lex_stuff = Nullsv; |
463ee0b2 | 4771 | croak("Translation pattern not terminated"); |
a687059c | 4772 | } |
a0d0e21e | 4773 | if (s[-1] == multi_open) |
2f3197b3 LW |
4774 | s--; |
4775 | ||
93a17b20 | 4776 | s = scan_str(s); |
79072805 LW |
4777 | if (!s) { |
4778 | if (lex_stuff) | |
8990e307 | 4779 | SvREFCNT_dec(lex_stuff); |
79072805 LW |
4780 | lex_stuff = Nullsv; |
4781 | if (lex_repl) | |
8990e307 | 4782 | SvREFCNT_dec(lex_repl); |
79072805 | 4783 | lex_repl = Nullsv; |
463ee0b2 | 4784 | croak("Translation replacement not terminated"); |
a687059c | 4785 | } |
79072805 LW |
4786 | |
4787 | New(803,tbl,256,short); | |
11343788 | 4788 | o = newPVOP(OP_TRANS, 0, (char*)tbl); |
2f3197b3 | 4789 | |
395c3793 LW |
4790 | complement = delete = squash = 0; |
4791 | while (*s == 'c' || *s == 'd' || *s == 's') { | |
4792 | if (*s == 'c') | |
79072805 | 4793 | complement = OPpTRANS_COMPLEMENT; |
395c3793 | 4794 | else if (*s == 'd') |
79072805 | 4795 | delete = OPpTRANS_DELETE; |
395c3793 | 4796 | else |
79072805 | 4797 | squash = OPpTRANS_SQUASH; |
395c3793 LW |
4798 | s++; |
4799 | } | |
11343788 | 4800 | o->op_private = delete|squash|complement; |
79072805 | 4801 | |
11343788 | 4802 | lex_op = o; |
79072805 LW |
4803 | yylval.ival = OP_TRANS; |
4804 | return s; | |
4805 | } | |
4806 | ||
8990e307 | 4807 | static char * |
79072805 LW |
4808 | scan_heredoc(s) |
4809 | register char *s; | |
4810 | { | |
11343788 | 4811 | dTHR; |
79072805 LW |
4812 | SV *herewas; |
4813 | I32 op_type = OP_SCALAR; | |
4814 | I32 len; | |
4815 | SV *tmpstr; | |
4816 | char term; | |
4817 | register char *d; | |
fc36a67e | 4818 | register char *e; |
4633a7c4 | 4819 | char *peek; |
fd2d0953 | 4820 | int outer = (rsfp && !lex_inwhat); |
79072805 LW |
4821 | |
4822 | s += 2; | |
4823 | d = tokenbuf; | |
fc36a67e | 4824 | e = tokenbuf + sizeof tokenbuf - 1; |
fd2d0953 | 4825 | if (!outer) |
79072805 | 4826 | *d++ = '\n'; |
4633a7c4 LW |
4827 | for (peek = s; *peek == ' ' || *peek == '\t'; peek++) ; |
4828 | if (*peek && strchr("`'\"",*peek)) { | |
4829 | s = peek; | |
79072805 | 4830 | term = *s++; |
fc36a67e | 4831 | s = delimcpy(d, e, s, bufend, term, &len); |
4832 | d += len; | |
79072805 LW |
4833 | if (s < bufend) |
4834 | s++; | |
79072805 LW |
4835 | } |
4836 | else { | |
4837 | if (*s == '\\') | |
4838 | s++, term = '\''; | |
4839 | else | |
4840 | term = '"'; | |
4633a7c4 LW |
4841 | if (!isALNUM(*s)) |
4842 | deprecate("bare << to mean <<\"\""); | |
fc36a67e | 4843 | for (; isALNUM(*s); s++) { |
4844 | if (d < e) | |
4845 | *d++ = *s; | |
4846 | } | |
4847 | } | |
4848 | if (d >= tokenbuf + sizeof tokenbuf - 1) | |
4849 | croak("Delimiter for here document is too long"); | |
79072805 LW |
4850 | *d++ = '\n'; |
4851 | *d = '\0'; | |
4852 | len = d - tokenbuf; | |
4853 | d = "\n"; | |
fd2d0953 | 4854 | if (outer || !(d=ninstr(s,bufend,d,d+1))) |
79072805 LW |
4855 | herewas = newSVpv(s,bufend-s); |
4856 | else | |
4857 | s--, herewas = newSVpv(s,d-s); | |
4858 | s += SvCUR(herewas); | |
748a9306 LW |
4859 | |
4860 | tmpstr = NEWSV(87,80); | |
4861 | sv_upgrade(tmpstr, SVt_PVIV); | |
4862 | if (term == '\'') { | |
79072805 | 4863 | op_type = OP_CONST; |
748a9306 LW |
4864 | SvIVX(tmpstr) = -1; |
4865 | } | |
4866 | else if (term == '`') { | |
79072805 | 4867 | op_type = OP_BACKTICK; |
748a9306 LW |
4868 | SvIVX(tmpstr) = '\\'; |
4869 | } | |
79072805 LW |
4870 | |
4871 | CLINE; | |
4872 | multi_start = curcop->cop_line; | |
4873 | multi_open = multi_close = '<'; | |
79072805 | 4874 | term = *tokenbuf; |
fd2d0953 | 4875 | if (!outer) { |
79072805 LW |
4876 | d = s; |
4877 | while (s < bufend && | |
36477c24 | 4878 | (*s != term || memNE(s,tokenbuf,len)) ) { |
79072805 LW |
4879 | if (*s++ == '\n') |
4880 | curcop->cop_line++; | |
4881 | } | |
4882 | if (s >= bufend) { | |
4883 | curcop->cop_line = multi_start; | |
8990e307 | 4884 | missingterm(tokenbuf); |
79072805 LW |
4885 | } |
4886 | sv_setpvn(tmpstr,d+1,s-d); | |
4887 | s += len - 1; | |
4888 | sv_catpvn(herewas,s,bufend-s); | |
4889 | sv_setsv(linestr,herewas); | |
fd049845 | 4890 | oldoldbufptr = oldbufptr = bufptr = s = linestart = SvPVX(linestr); |
463ee0b2 | 4891 | bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 LW |
4892 | } |
4893 | else | |
4894 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
4895 | while (s >= bufend) { /* multiple line string? */ | |
fd2d0953 | 4896 | if (!outer || |
fd049845 | 4897 | !(oldoldbufptr = oldbufptr = s = linestart = filter_gets(linestr, rsfp, 0))) { |
79072805 | 4898 | curcop->cop_line = multi_start; |
8990e307 | 4899 | missingterm(tokenbuf); |
79072805 LW |
4900 | } |
4901 | curcop->cop_line++; | |
84902520 | 4902 | if (PERLDB_LINE && curstash != debstash) { |
79072805 LW |
4903 | SV *sv = NEWSV(88,0); |
4904 | ||
93a17b20 | 4905 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
4906 | sv_setsv(sv,linestr); |
4907 | av_store(GvAV(curcop->cop_filegv), | |
4908 | (I32)curcop->cop_line,sv); | |
4909 | } | |
463ee0b2 | 4910 | bufend = SvPVX(linestr) + SvCUR(linestr); |
36477c24 | 4911 | if (*s == term && memEQ(s,tokenbuf,len)) { |
79072805 LW |
4912 | s = bufend - 1; |
4913 | *s = ' '; | |
4914 | sv_catsv(linestr,herewas); | |
463ee0b2 | 4915 | bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 LW |
4916 | } |
4917 | else { | |
4918 | s = bufend; | |
4919 | sv_catsv(tmpstr,linestr); | |
395c3793 LW |
4920 | } |
4921 | } | |
79072805 LW |
4922 | multi_end = curcop->cop_line; |
4923 | s++; | |
4924 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { | |
4925 | SvLEN_set(tmpstr, SvCUR(tmpstr) + 1); | |
463ee0b2 | 4926 | Renew(SvPVX(tmpstr), SvLEN(tmpstr), char); |
79072805 | 4927 | } |
8990e307 | 4928 | SvREFCNT_dec(herewas); |
79072805 LW |
4929 | lex_stuff = tmpstr; |
4930 | yylval.ival = op_type; | |
4931 | return s; | |
4932 | } | |
4933 | ||
8990e307 | 4934 | static char * |
79072805 LW |
4935 | scan_inputsymbol(start) |
4936 | char *start; | |
4937 | { | |
4938 | register char *s = start; | |
4939 | register char *d; | |
fc36a67e | 4940 | register char *e; |
79072805 LW |
4941 | I32 len; |
4942 | ||
4943 | d = tokenbuf; | |
fc36a67e | 4944 | e = tokenbuf + sizeof tokenbuf; |
4945 | s = delimcpy(d, e, s + 1, bufend, '>', &len); | |
4946 | if (len >= sizeof tokenbuf) | |
4947 | croak("Excessively long <> operator"); | |
4948 | if (s >= bufend) | |
463ee0b2 | 4949 | croak("Unterminated <> operator"); |
fc36a67e | 4950 | s++; |
4633a7c4 | 4951 | if (*d == '$' && d[1]) d++; |
a0d0e21e | 4952 | while (*d && (isALNUM(*d) || *d == '\'' || *d == ':')) |
79072805 LW |
4953 | d++; |
4954 | if (d - tokenbuf != len) { | |
4955 | yylval.ival = OP_GLOB; | |
4956 | set_csh(); | |
4957 | s = scan_str(start); | |
4958 | if (!s) | |
463ee0b2 | 4959 | croak("Glob not terminated"); |
79072805 LW |
4960 | return s; |
4961 | } | |
395c3793 | 4962 | else { |
79072805 LW |
4963 | d = tokenbuf; |
4964 | if (!len) | |
4965 | (void)strcpy(d,"ARGV"); | |
4966 | if (*d == '$') { | |
a0d0e21e | 4967 | I32 tmp; |
11343788 MB |
4968 | if ((tmp = pad_findmy(d)) != NOT_IN_PAD) { |
4969 | OP *o = newOP(OP_PADSV, 0); | |
4970 | o->op_targ = tmp; | |
4971 | lex_op = (OP*)newUNOP(OP_READLINE, 0, newUNOP(OP_RV2GV, 0, o)); | |
a0d0e21e LW |
4972 | } |
4973 | else { | |
4974 | GV *gv = gv_fetchpv(d+1,TRUE, SVt_PV); | |
4975 | lex_op = (OP*)newUNOP(OP_READLINE, 0, | |
4976 | newUNOP(OP_RV2GV, 0, | |
4977 | newUNOP(OP_RV2SV, 0, | |
4978 | newGVOP(OP_GV, 0, gv)))); | |
4979 | } | |
79072805 LW |
4980 | yylval.ival = OP_NULL; |
4981 | } | |
4982 | else { | |
85e6fe83 | 4983 | GV *gv = gv_fetchpv(d,TRUE, SVt_PVIO); |
79072805 LW |
4984 | lex_op = (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); |
4985 | yylval.ival = OP_NULL; | |
4986 | } | |
4987 | } | |
4988 | return s; | |
4989 | } | |
4990 | ||
8990e307 | 4991 | static char * |
79072805 LW |
4992 | scan_str(start) |
4993 | char *start; | |
4994 | { | |
11343788 | 4995 | dTHR; |
93a17b20 | 4996 | SV *sv; |
79072805 LW |
4997 | char *tmps; |
4998 | register char *s = start; | |
a0d0e21e | 4999 | register char term; |
93a17b20 LW |
5000 | register char *to; |
5001 | I32 brackets = 1; | |
79072805 | 5002 | |
fb73857a | 5003 | if (isSPACE(*s)) |
5004 | s = skipspace(s); | |
79072805 | 5005 | CLINE; |
a0d0e21e | 5006 | term = *s; |
79072805 LW |
5007 | multi_start = curcop->cop_line; |
5008 | multi_open = term; | |
93a17b20 | 5009 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
79072805 LW |
5010 | term = tmps[5]; |
5011 | multi_close = term; | |
5012 | ||
93a17b20 | 5013 | sv = NEWSV(87,80); |
ed6116ce LW |
5014 | sv_upgrade(sv, SVt_PVIV); |
5015 | SvIVX(sv) = term; | |
a0d0e21e | 5016 | (void)SvPOK_only(sv); /* validate pointer */ |
93a17b20 LW |
5017 | s++; |
5018 | for (;;) { | |
5019 | SvGROW(sv, SvCUR(sv) + (bufend - s) + 1); | |
463ee0b2 | 5020 | to = SvPVX(sv)+SvCUR(sv); |
93a17b20 LW |
5021 | if (multi_open == multi_close) { |
5022 | for (; s < bufend; s++,to++) { | |
463ee0b2 LW |
5023 | if (*s == '\n' && !rsfp) |
5024 | curcop->cop_line++; | |
a0d0e21e LW |
5025 | if (*s == '\\' && s+1 < bufend && term != '\\') { |
5026 | if (s[1] == term) | |
5027 | s++; | |
5028 | else | |
5029 | *to++ = *s++; | |
5030 | } | |
93a17b20 LW |
5031 | else if (*s == term) |
5032 | break; | |
5033 | *to = *s; | |
5034 | } | |
5035 | } | |
5036 | else { | |
5037 | for (; s < bufend; s++,to++) { | |
463ee0b2 LW |
5038 | if (*s == '\n' && !rsfp) |
5039 | curcop->cop_line++; | |
6d07e5e9 GS |
5040 | if (*s == '\\' && s+1 < bufend) { |
5041 | if ((s[1] == multi_open) || (s[1] == multi_close)) | |
a0d0e21e LW |
5042 | s++; |
5043 | else | |
5044 | *to++ = *s++; | |
5045 | } | |
6d07e5e9 | 5046 | else if (*s == multi_close && --brackets <= 0) |
93a17b20 LW |
5047 | break; |
5048 | else if (*s == multi_open) | |
5049 | brackets++; | |
5050 | *to = *s; | |
5051 | } | |
5052 | } | |
5053 | *to = '\0'; | |
463ee0b2 | 5054 | SvCUR_set(sv, to - SvPVX(sv)); |
93a17b20 LW |
5055 | |
5056 | if (s < bufend) break; /* string ends on this line? */ | |
79072805 | 5057 | |
79072805 | 5058 | if (!rsfp || |
fd049845 | 5059 | !(oldoldbufptr = oldbufptr = s = linestart = filter_gets(linestr, rsfp, 0))) { |
c07a80fd | 5060 | sv_free(sv); |
79072805 LW |
5061 | curcop->cop_line = multi_start; |
5062 | return Nullch; | |
5063 | } | |
5064 | curcop->cop_line++; | |
84902520 | 5065 | if (PERLDB_LINE && curstash != debstash) { |
79072805 LW |
5066 | SV *sv = NEWSV(88,0); |
5067 | ||
93a17b20 | 5068 | sv_upgrade(sv, SVt_PVMG); |
79072805 LW |
5069 | sv_setsv(sv,linestr); |
5070 | av_store(GvAV(curcop->cop_filegv), | |
5071 | (I32)curcop->cop_line, sv); | |
395c3793 | 5072 | } |
463ee0b2 | 5073 | bufend = SvPVX(linestr) + SvCUR(linestr); |
378cc40b | 5074 | } |
79072805 LW |
5075 | multi_end = curcop->cop_line; |
5076 | s++; | |
93a17b20 LW |
5077 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
5078 | SvLEN_set(sv, SvCUR(sv) + 1); | |
463ee0b2 | 5079 | Renew(SvPVX(sv), SvLEN(sv), char); |
79072805 LW |
5080 | } |
5081 | if (lex_stuff) | |
93a17b20 | 5082 | lex_repl = sv; |
79072805 | 5083 | else |
93a17b20 | 5084 | lex_stuff = sv; |
378cc40b LW |
5085 | return s; |
5086 | } | |
5087 | ||
5088 | char * | |
79072805 | 5089 | scan_num(start) |
2f3197b3 | 5090 | char *start; |
378cc40b | 5091 | { |
2f3197b3 | 5092 | register char *s = start; |
378cc40b | 5093 | register char *d; |
fc36a67e | 5094 | register char *e; |
1e422769 | 5095 | I32 tryiv; |
79072805 LW |
5096 | double value; |
5097 | SV *sv; | |
5098 | I32 floatit; | |
93a17b20 | 5099 | char *lastub = 0; |
fc36a67e | 5100 | static char number_too_long[] = "Number too long"; |
378cc40b LW |
5101 | |
5102 | switch (*s) { | |
79072805 | 5103 | default: |
463ee0b2 | 5104 | croak("panic: scan_num"); |
378cc40b LW |
5105 | case '0': |
5106 | { | |
55497cff | 5107 | UV u; |
79072805 | 5108 | I32 shift; |
55497cff | 5109 | bool overflowed = FALSE; |
378cc40b | 5110 | |
378cc40b LW |
5111 | if (s[1] == 'x') { |
5112 | shift = 4; | |
5113 | s += 2; | |
5114 | } | |
5115 | else if (s[1] == '.') | |
5116 | goto decimal; | |
5117 | else | |
5118 | shift = 3; | |
55497cff | 5119 | u = 0; |
378cc40b | 5120 | for (;;) { |
55497cff | 5121 | UV n, b; |
5122 | ||
378cc40b LW |
5123 | switch (*s) { |
5124 | default: | |
5125 | goto out; | |
de3bb511 LW |
5126 | case '_': |
5127 | s++; | |
5128 | break; | |
378cc40b LW |
5129 | case '8': case '9': |
5130 | if (shift != 4) | |
a687059c | 5131 | yyerror("Illegal octal digit"); |
378cc40b LW |
5132 | /* FALL THROUGH */ |
5133 | case '0': case '1': case '2': case '3': case '4': | |
5134 | case '5': case '6': case '7': | |
55497cff | 5135 | b = *s++ & 15; |
5136 | goto digit; | |
378cc40b LW |
5137 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
5138 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
5139 | if (shift != 4) | |
5140 | goto out; | |
55497cff | 5141 | b = (*s++ & 7) + 9; |
5142 | digit: | |
5143 | n = u << shift; | |
5144 | if (!overflowed && (n >> shift) != u) { | |
5145 | warn("Integer overflow in %s number", | |
5146 | (shift == 4) ? "hex" : "octal"); | |
5147 | overflowed = TRUE; | |
5148 | } | |
5149 | u = n | b; | |
378cc40b LW |
5150 | break; |
5151 | } | |
5152 | } | |
5153 | out: | |
79072805 | 5154 | sv = NEWSV(92,0); |
55497cff | 5155 | sv_setuv(sv, u); |
378cc40b LW |
5156 | } |
5157 | break; | |
5158 | case '1': case '2': case '3': case '4': case '5': | |
5159 | case '6': case '7': case '8': case '9': case '.': | |
5160 | decimal: | |
378cc40b | 5161 | d = tokenbuf; |
fc36a67e | 5162 | e = tokenbuf + sizeof tokenbuf - 6; /* room for various punctuation */ |
79072805 | 5163 | floatit = FALSE; |
de3bb511 | 5164 | while (isDIGIT(*s) || *s == '_') { |
93a17b20 LW |
5165 | if (*s == '_') { |
5166 | if (dowarn && lastub && s - lastub != 3) | |
8990e307 | 5167 | warn("Misplaced _ in number"); |
93a17b20 LW |
5168 | lastub = ++s; |
5169 | } | |
fc36a67e | 5170 | else { |
5171 | if (d >= e) | |
5172 | croak(number_too_long); | |
378cc40b | 5173 | *d++ = *s++; |
fc36a67e | 5174 | } |
378cc40b | 5175 | } |
93a17b20 | 5176 | if (dowarn && lastub && s - lastub != 3) |
8990e307 | 5177 | warn("Misplaced _ in number"); |
2f3197b3 | 5178 | if (*s == '.' && s[1] != '.') { |
79072805 | 5179 | floatit = TRUE; |
378cc40b | 5180 | *d++ = *s++; |
fc36a67e | 5181 | for (; isDIGIT(*s) || *s == '_'; s++) { |
5182 | if (d >= e) | |
5183 | croak(number_too_long); | |
5184 | if (*s != '_') | |
5185 | *d++ = *s; | |
378cc40b LW |
5186 | } |
5187 | } | |
93a17b20 | 5188 | if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) { |
79072805 LW |
5189 | floatit = TRUE; |
5190 | s++; | |
5191 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ | |
378cc40b LW |
5192 | if (*s == '+' || *s == '-') |
5193 | *d++ = *s++; | |
fc36a67e | 5194 | while (isDIGIT(*s)) { |
5195 | if (d >= e) | |
5196 | croak(number_too_long); | |
378cc40b | 5197 | *d++ = *s++; |
fc36a67e | 5198 | } |
378cc40b LW |
5199 | } |
5200 | *d = '\0'; | |
79072805 | 5201 | sv = NEWSV(92,0); |
36477c24 | 5202 | SET_NUMERIC_STANDARD(); |
79072805 | 5203 | value = atof(tokenbuf); |
1e422769 | 5204 | tryiv = I_V(value); |
5205 | if (!floatit && (double)tryiv == value) | |
5206 | sv_setiv(sv, tryiv); | |
2f3197b3 | 5207 | else |
1e422769 | 5208 | sv_setnv(sv, value); |
378cc40b | 5209 | break; |
79072805 | 5210 | } |
a687059c | 5211 | |
79072805 | 5212 | yylval.opval = newSVOP(OP_CONST, 0, sv); |
a687059c | 5213 | |
378cc40b LW |
5214 | return s; |
5215 | } | |
5216 | ||
8990e307 | 5217 | static char * |
79072805 LW |
5218 | scan_formline(s) |
5219 | register char *s; | |
378cc40b | 5220 | { |
11343788 | 5221 | dTHR; |
79072805 | 5222 | register char *eol; |
378cc40b | 5223 | register char *t; |
a0d0e21e | 5224 | SV *stuff = newSVpv("",0); |
79072805 | 5225 | bool needargs = FALSE; |
378cc40b | 5226 | |
79072805 | 5227 | while (!needargs) { |
85e6fe83 | 5228 | if (*s == '.' || *s == '}') { |
79072805 LW |
5229 | /*SUPPRESS 530*/ |
5230 | for (t = s+1; *t == ' ' || *t == '\t'; t++) ; | |
5231 | if (*t == '\n') | |
5232 | break; | |
5233 | } | |
0f85fab0 | 5234 | if (in_eval && !rsfp) { |
93a17b20 | 5235 | eol = strchr(s,'\n'); |
0f85fab0 LW |
5236 | if (!eol++) |
5237 | eol = bufend; | |
5238 | } | |
5239 | else | |
463ee0b2 | 5240 | eol = bufend = SvPVX(linestr) + SvCUR(linestr); |
79072805 | 5241 | if (*s != '#') { |
a0d0e21e LW |
5242 | for (t = s; t < eol; t++) { |
5243 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
5244 | needargs = FALSE; | |
5245 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 5246 | } |
a0d0e21e LW |
5247 | if (*t == '@' || *t == '^') |
5248 | needargs = TRUE; | |
378cc40b | 5249 | } |
a0d0e21e | 5250 | sv_catpvn(stuff, s, eol-s); |
79072805 LW |
5251 | } |
5252 | s = eol; | |
5253 | if (rsfp) { | |
fd049845 | 5254 | s = filter_gets(linestr, rsfp, 0); |
5255 | oldoldbufptr = oldbufptr = bufptr = linestart = SvPVX(linestr); | |
a0d0e21e | 5256 | bufend = bufptr + SvCUR(linestr); |
79072805 LW |
5257 | if (!s) { |
5258 | s = bufptr; | |
5259 | yyerror("Format not terminated"); | |
378cc40b LW |
5260 | break; |
5261 | } | |
378cc40b | 5262 | } |
463ee0b2 | 5263 | incline(s); |
79072805 | 5264 | } |
a0d0e21e LW |
5265 | enough: |
5266 | if (SvCUR(stuff)) { | |
463ee0b2 | 5267 | expect = XTERM; |
79072805 | 5268 | if (needargs) { |
a0d0e21e | 5269 | lex_state = LEX_NORMAL; |
79072805 LW |
5270 | nextval[nexttoke].ival = 0; |
5271 | force_next(','); | |
5272 | } | |
a0d0e21e LW |
5273 | else |
5274 | lex_state = LEX_FORMLINE; | |
79072805 LW |
5275 | nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff); |
5276 | force_next(THING); | |
5277 | nextval[nexttoke].ival = OP_FORMLINE; | |
5278 | force_next(LSTOP); | |
378cc40b | 5279 | } |
79072805 | 5280 | else { |
8990e307 | 5281 | SvREFCNT_dec(stuff); |
85e6fe83 | 5282 | lex_formbrack = 0; |
79072805 LW |
5283 | bufptr = s; |
5284 | } | |
5285 | return s; | |
378cc40b | 5286 | } |
a687059c | 5287 | |
2f3197b3 | 5288 | static void |
a687059c LW |
5289 | set_csh() |
5290 | { | |
ae986130 LW |
5291 | #ifdef CSH |
5292 | if (!cshlen) | |
5293 | cshlen = strlen(cshname); | |
5294 | #endif | |
a687059c | 5295 | } |
463ee0b2 | 5296 | |
ba6d6ac9 | 5297 | I32 |
774d564b | 5298 | start_subparse(is_format, flags) |
5299 | I32 is_format; | |
fa83b5b6 | 5300 | U32 flags; |
8990e307 | 5301 | { |
11343788 | 5302 | dTHR; |
ba6d6ac9 | 5303 | I32 oldsavestack_ix = savestack_ix; |
748a9306 LW |
5304 | CV* outsidecv = compcv; |
5305 | AV* comppadlist; | |
8990e307 | 5306 | |
e9a444f0 LW |
5307 | if (compcv) { |
5308 | assert(SvTYPE(compcv) == SVt_PVCV); | |
5309 | } | |
8990e307 LW |
5310 | save_I32(&subline); |
5311 | save_item(subname); | |
55497cff | 5312 | SAVEI32(padix); |
8990e307 LW |
5313 | SAVESPTR(curpad); |
5314 | SAVESPTR(comppad); | |
5315 | SAVESPTR(comppad_name); | |
748a9306 | 5316 | SAVESPTR(compcv); |
55497cff | 5317 | SAVEI32(comppad_name_fill); |
5318 | SAVEI32(min_intro_pending); | |
5319 | SAVEI32(max_intro_pending); | |
5320 | SAVEI32(pad_reset_pending); | |
748a9306 LW |
5321 | |
5322 | compcv = (CV*)NEWSV(1104,0); | |
774d564b | 5323 | sv_upgrade((SV *)compcv, is_format ? SVt_PVFM : SVt_PVCV); |
fa83b5b6 | 5324 | CvFLAGS(compcv) |= flags; |
748a9306 | 5325 | |
8990e307 | 5326 | comppad = newAV(); |
6d4ff0d2 MB |
5327 | av_push(comppad, Nullsv); |
5328 | curpad = AvARRAY(comppad); | |
8990e307 LW |
5329 | comppad_name = newAV(); |
5330 | comppad_name_fill = 0; | |
5331 | min_intro_pending = 0; | |
8990e307 | 5332 | padix = 0; |
8990e307 | 5333 | subline = curcop->cop_line; |
6d4ff0d2 MB |
5334 | #ifdef USE_THREADS |
5335 | av_store(comppad_name, 0, newSVpv("@_", 2)); | |
5336 | curpad[0] = (SV*)newAV(); | |
5337 | SvPADMY_on(curpad[0]); /* XXX Needed? */ | |
5338 | CvOWNER(compcv) = 0; | |
12ca11f6 | 5339 | New(666, CvMUTEXP(compcv), 1, perl_mutex); |
6d4ff0d2 | 5340 | MUTEX_INIT(CvMUTEXP(compcv)); |
6d4ff0d2 | 5341 | #endif /* USE_THREADS */ |
748a9306 LW |
5342 | |
5343 | comppadlist = newAV(); | |
5344 | AvREAL_off(comppadlist); | |
8e07c86e AD |
5345 | av_store(comppadlist, 0, (SV*)comppad_name); |
5346 | av_store(comppadlist, 1, (SV*)comppad); | |
748a9306 LW |
5347 | |
5348 | CvPADLIST(compcv) = comppadlist; | |
554b3eca | 5349 | CvOUTSIDE(compcv) = outsidecv ? (CV*)SvREFCNT_inc(outsidecv) : 0; |
11343788 MB |
5350 | #ifdef USE_THREADS |
5351 | CvOWNER(compcv) = 0; | |
12ca11f6 | 5352 | New(666, CvMUTEXP(compcv), 1, perl_mutex); |
11343788 | 5353 | MUTEX_INIT(CvMUTEXP(compcv)); |
11343788 | 5354 | #endif /* USE_THREADS */ |
748a9306 | 5355 | |
8990e307 LW |
5356 | return oldsavestack_ix; |
5357 | } | |
5358 | ||
5359 | int | |
5360 | yywarn(s) | |
5361 | char *s; | |
5362 | { | |
11343788 | 5363 | dTHR; |
8990e307 | 5364 | --error_count; |
748a9306 LW |
5365 | in_eval |= 2; |
5366 | yyerror(s); | |
5367 | in_eval &= ~2; | |
5368 | return 0; | |
8990e307 LW |
5369 | } |
5370 | ||
5371 | int | |
463ee0b2 LW |
5372 | yyerror(s) |
5373 | char *s; | |
5374 | { | |
11343788 | 5375 | dTHR; |
68dc0745 | 5376 | char *where = NULL; |
5377 | char *context = NULL; | |
5378 | int contlen = -1; | |
46fc3d4c | 5379 | SV *msg; |
463ee0b2 | 5380 | |
54310121 | 5381 | if (!yychar || (yychar == ';' && !rsfp)) |
5382 | where = "at EOF"; | |
5383 | else if (bufptr > oldoldbufptr && bufptr - oldoldbufptr < 200 && | |
463ee0b2 LW |
5384 | oldoldbufptr != oldbufptr && oldbufptr != bufptr) { |
5385 | while (isSPACE(*oldoldbufptr)) | |
5386 | oldoldbufptr++; | |
68dc0745 | 5387 | context = oldoldbufptr; |
5388 | contlen = bufptr - oldoldbufptr; | |
463ee0b2 LW |
5389 | } |
5390 | else if (bufptr > oldbufptr && bufptr - oldbufptr < 200 && | |
5391 | oldbufptr != bufptr) { | |
5392 | while (isSPACE(*oldbufptr)) | |
5393 | oldbufptr++; | |
68dc0745 | 5394 | context = oldbufptr; |
5395 | contlen = bufptr - oldbufptr; | |
463ee0b2 LW |
5396 | } |
5397 | else if (yychar > 255) | |
68dc0745 | 5398 | where = "next token ???"; |
463ee0b2 LW |
5399 | else if ((yychar & 127) == 127) { |
5400 | if (lex_state == LEX_NORMAL || | |
5401 | (lex_state == LEX_KNOWNEXT && lex_defer == LEX_NORMAL)) | |
68dc0745 | 5402 | where = "at end of line"; |
4633a7c4 | 5403 | else if (lex_inpat) |
68dc0745 | 5404 | where = "within pattern"; |
463ee0b2 | 5405 | else |
68dc0745 | 5406 | where = "within string"; |
463ee0b2 | 5407 | } |
46fc3d4c | 5408 | else { |
5409 | SV *where_sv = sv_2mortal(newSVpv("next char ", 0)); | |
5410 | if (yychar < 32) | |
5411 | sv_catpvf(where_sv, "^%c", toCTRL(yychar)); | |
5412 | else if (isPRINT_LC(yychar)) | |
5413 | sv_catpvf(where_sv, "%c", yychar); | |
463ee0b2 | 5414 | else |
46fc3d4c | 5415 | sv_catpvf(where_sv, "\\%03o", yychar & 255); |
5416 | where = SvPVX(where_sv); | |
463ee0b2 | 5417 | } |
46fc3d4c | 5418 | msg = sv_2mortal(newSVpv(s, 0)); |
fc36a67e | 5419 | sv_catpvf(msg, " at %_ line %ld, ", |
46fc3d4c | 5420 | GvSV(curcop->cop_filegv), (long)curcop->cop_line); |
68dc0745 | 5421 | if (context) |
46fc3d4c | 5422 | sv_catpvf(msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 5423 | else |
46fc3d4c | 5424 | sv_catpvf(msg, "%s\n", where); |
4fdae800 | 5425 | if (multi_start < multi_end && (U32)(curcop->cop_line - multi_end) <= 1) { |
46fc3d4c | 5426 | sv_catpvf(msg, |
4fdae800 | 5427 | " (Might be a runaway multi-line %c%c string starting on line %ld)\n", |
ff0cee69 | 5428 | (int)multi_open,(int)multi_close,(long)multi_start); |
a0d0e21e LW |
5429 | multi_end = 0; |
5430 | } | |
748a9306 | 5431 | if (in_eval & 2) |
fc36a67e | 5432 | warn("%_", msg); |
748a9306 | 5433 | else if (in_eval) |
a863c7d1 | 5434 | sv_catsv(errsv, msg); |
463ee0b2 | 5435 | else |
46fc3d4c | 5436 | PerlIO_write(PerlIO_stderr(), SvPVX(msg), SvCUR(msg)); |
463ee0b2 | 5437 | if (++error_count >= 10) |
fc36a67e | 5438 | croak("%_ has too many errors.\n", GvSV(curcop->cop_filegv)); |
4633a7c4 | 5439 | in_my = 0; |
c750a3ec | 5440 | in_my_stash = Nullhv; |
463ee0b2 LW |
5441 | return 0; |
5442 | } |