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988174c1 |
1 | /* $RCSfile: toke.c,v $$Revision: 4.0.1.5 $$Date: 91/11/11 16:45:51 $ |
a687059c |
2 | * |
d48672a2 |
3 | * Copyright (c) 1991, Larry Wall |
a687059c |
4 | * |
d48672a2 |
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 | * |
8 | * $Log: toke.c,v $ |
988174c1 |
9 | * Revision 4.0.1.5 91/11/11 16:45:51 lwall |
10 | * patch19: default arg for shift was wrong after first subroutine definition |
11 | * |
de3bb511 |
12 | * Revision 4.0.1.4 91/11/05 19:02:48 lwall |
13 | * patch11: \x and \c were subject to double interpretation in regexps |
14 | * patch11: prepared for ctype implementations that don't define isascii() |
15 | * patch11: nested list operators could miscount parens |
16 | * patch11: once-thru blocks didn't display right in the debugger |
17 | * patch11: sort eval "whatever" didn't work |
18 | * patch11: underscore is now allowed within literal octal and hex numbers |
19 | * |
1462b684 |
20 | * Revision 4.0.1.3 91/06/10 01:32:26 lwall |
21 | * patch10: m'$foo' now treats string as single quoted |
22 | * patch10: certain pattern optimizations were botched |
23 | * |
d48672a2 |
24 | * Revision 4.0.1.2 91/06/07 12:05:56 lwall |
25 | * patch4: new copyright notice |
26 | * patch4: debugger lost track of lines in eval |
27 | * patch4: //o and s///o now optimize themselves fully at runtime |
28 | * patch4: added global modifier for pattern matches |
29 | * |
35c8bce7 |
30 | * Revision 4.0.1.1 91/04/12 09:18:18 lwall |
31 | * patch1: perl -de "print" wouldn't stop at the first statement |
32 | * |
fe14fcc3 |
33 | * Revision 4.0 91/03/20 01:42:14 lwall |
34 | * 4.0 baseline. |
378cc40b |
35 | * |
36 | */ |
37 | |
38 | #include "EXTERN.h" |
39 | #include "perl.h" |
40 | #include "perly.h" |
41 | |
395c3793 |
42 | #ifdef I_FCNTL |
43 | #include <fcntl.h> |
44 | #endif |
fe14fcc3 |
45 | #ifdef I_SYS_FILE |
46 | #include <sys/file.h> |
47 | #endif |
395c3793 |
48 | |
d48672a2 |
49 | #ifdef f_next |
50 | #undef f_next |
51 | #endif |
52 | |
395c3793 |
53 | /* which backslash sequences to keep in m// or s// */ |
54 | |
de3bb511 |
55 | static char *patleave = "\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}"; |
395c3793 |
56 | |
fe14fcc3 |
57 | char *reparse; /* if non-null, scanident found ${foo[$bar]} */ |
58 | |
59 | void checkcomma(); |
a687059c |
60 | |
ae986130 |
61 | #ifdef CLINE |
62 | #undef CLINE |
63 | #endif |
e929a76b |
64 | #define CLINE (cmdline = (curcmd->c_line < cmdline ? curcmd->c_line : cmdline)) |
378cc40b |
65 | |
a687059c |
66 | #define META(c) ((c) | 128) |
67 | |
378cc40b |
68 | #define RETURN(retval) return (bufptr = s,(int)retval) |
69 | #define OPERATOR(retval) return (expectterm = TRUE,bufptr = s,(int)retval) |
70 | #define TERM(retval) return (CLINE, expectterm = FALSE,bufptr = s,(int)retval) |
71 | #define LOOPX(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)LOOPEX) |
378cc40b |
72 | #define FTST(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)FILETEST) |
73 | #define FUN0(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC0) |
74 | #define FUN1(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC1) |
75 | #define FUN2(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC2) |
395c3793 |
76 | #define FUN2x(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC2x) |
378cc40b |
77 | #define FUN3(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC3) |
395c3793 |
78 | #define FUN4(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC4) |
79 | #define FUN5(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC5) |
a687059c |
80 | #define FL(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FLIST) |
81 | #define FL2(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FLIST2) |
82 | #define HFUN(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)HSHFUN) |
83 | #define HFUN3(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)HSHFUN3) |
84 | #define LFUN(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)LVALFUN) |
a687059c |
85 | #define AOP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)ADDOP) |
86 | #define MOP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)MULOP) |
87 | #define EOP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)EQOP) |
88 | #define ROP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)RELOP) |
89 | #define FOP(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP) |
90 | #define FOP2(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP2) |
91 | #define FOP3(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP3) |
92 | #define FOP4(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP4) |
93 | #define FOP22(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP22) |
94 | #define FOP25(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP25) |
95 | |
96 | /* This bit of chicanery makes a unary function followed by |
97 | * a parenthesis into a function with one argument, highest precedence. |
98 | */ |
99 | #define UNI(f) return(yylval.ival = f,expectterm = TRUE,bufptr = s, \ |
100 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) ) |
101 | |
102 | /* This does similarly for list operators, merely by pretending that the |
103 | * paren came before the listop rather than after. |
104 | */ |
35c8bce7 |
105 | #define LOP(f) return(CLINE, *s == '(' || (s = skipspace(s), *s == '(') ? \ |
de3bb511 |
106 | (*s = (char) META('('), bufptr = oldbufptr, '(') : \ |
a687059c |
107 | (yylval.ival=f,expectterm = TRUE,bufptr = s,(int)LISTOP)) |
9f68db38 |
108 | /* grandfather return to old style */ |
109 | #define OLDLOP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)LISTOP) |
a687059c |
110 | |
111 | char * |
112 | skipspace(s) |
113 | register char *s; |
114 | { |
de3bb511 |
115 | while (s < bufend && isSPACE(*s)) |
a687059c |
116 | s++; |
117 | return s; |
118 | } |
378cc40b |
119 | |
ffed7fef |
120 | #ifdef CRIPPLED_CC |
121 | |
122 | #undef UNI |
123 | #undef LOP |
124 | #define UNI(f) return uni(f,s) |
125 | #define LOP(f) return lop(f,s) |
126 | |
127 | int |
128 | uni(f,s) |
129 | int f; |
130 | char *s; |
131 | { |
132 | yylval.ival = f; |
133 | expectterm = TRUE; |
134 | bufptr = s; |
135 | if (*s == '(') |
136 | return FUNC1; |
137 | s = skipspace(s); |
138 | if (*s == '(') |
139 | return FUNC1; |
140 | else |
141 | return UNIOP; |
142 | } |
143 | |
144 | int |
145 | lop(f,s) |
146 | int f; |
147 | char *s; |
148 | { |
35c8bce7 |
149 | CLINE; |
ffed7fef |
150 | if (*s != '(') |
151 | s = skipspace(s); |
152 | if (*s == '(') { |
153 | *s = META('('); |
154 | bufptr = oldbufptr; |
155 | return '('; |
156 | } |
157 | else { |
158 | yylval.ival=f; |
159 | expectterm = TRUE; |
160 | bufptr = s; |
161 | return LISTOP; |
162 | } |
163 | } |
164 | |
165 | #endif /* CRIPPLED_CC */ |
166 | |
378cc40b |
167 | yylex() |
168 | { |
169 | register char *s = bufptr; |
170 | register char *d; |
171 | register int tmp; |
172 | static bool in_format = FALSE; |
173 | static bool firstline = TRUE; |
a687059c |
174 | extern int yychar; /* last token */ |
175 | |
176 | oldoldbufptr = oldbufptr; |
177 | oldbufptr = s; |
378cc40b |
178 | |
179 | retry: |
180 | #ifdef YYDEBUG |
ae986130 |
181 | if (debug & 1) |
378cc40b |
182 | if (index(s,'\n')) |
183 | fprintf(stderr,"Tokener at %s",s); |
184 | else |
185 | fprintf(stderr,"Tokener at %s\n",s); |
186 | #endif |
e929a76b |
187 | #ifdef BADSWITCH |
188 | if (*s & 128) { |
de3bb511 |
189 | if ((*s & 127) == '(') { |
e929a76b |
190 | *s++ = '('; |
de3bb511 |
191 | oldbufptr = s; |
192 | } |
e929a76b |
193 | else |
fe14fcc3 |
194 | warn("Unrecognized character \\%03o ignored", *s++ & 255); |
e929a76b |
195 | goto retry; |
196 | } |
197 | #endif |
378cc40b |
198 | switch (*s) { |
199 | default: |
de3bb511 |
200 | if ((*s & 127) == '(') { |
a687059c |
201 | *s++ = '('; |
de3bb511 |
202 | oldbufptr = s; |
203 | } |
a687059c |
204 | else |
fe14fcc3 |
205 | warn("Unrecognized character \\%03o ignored", *s++ & 255); |
378cc40b |
206 | goto retry; |
e929a76b |
207 | case 4: |
208 | case 26: |
209 | goto fake_eof; /* emulate EOF on ^D or ^Z */ |
378cc40b |
210 | case 0: |
378cc40b |
211 | if (!rsfp) |
212 | RETURN(0); |
a687059c |
213 | if (s++ < bufend) |
214 | goto retry; /* ignore stray nulls */ |
215 | if (firstline) { |
216 | firstline = FALSE; |
217 | if (minus_n || minus_p || perldb) { |
218 | str_set(linestr,""); |
395c3793 |
219 | if (perldb) { |
220 | char *getenv(); |
221 | char *pdb = getenv("PERLDB"); |
222 | |
223 | str_cat(linestr, pdb ? pdb : "require 'perldb.pl'"); |
224 | str_cat(linestr, ";"); |
225 | } |
a687059c |
226 | if (minus_n || minus_p) { |
227 | str_cat(linestr,"line: while (<>) {"); |
fe14fcc3 |
228 | if (minus_l) |
229 | str_cat(linestr,"chop;"); |
a687059c |
230 | if (minus_a) |
231 | str_cat(linestr,"@F=split(' ');"); |
232 | } |
233 | oldoldbufptr = oldbufptr = s = str_get(linestr); |
234 | bufend = linestr->str_ptr + linestr->str_cur; |
235 | goto retry; |
236 | } |
237 | } |
378cc40b |
238 | if (in_format) { |
0f85fab0 |
239 | bufptr = bufend; |
a687059c |
240 | yylval.formval = load_format(); |
378cc40b |
241 | in_format = FALSE; |
a687059c |
242 | oldoldbufptr = oldbufptr = s = str_get(linestr) + 1; |
243 | bufend = linestr->str_ptr + linestr->str_cur; |
e929a76b |
244 | OPERATOR(FORMLIST); |
245 | } |
246 | curcmd->c_line++; |
247 | #ifdef CRYPTSCRIPT |
248 | cryptswitch(); |
249 | #endif /* CRYPTSCRIPT */ |
250 | do { |
251 | if ((s = str_gets(linestr, rsfp, 0)) == Nullch) { |
252 | fake_eof: |
395c3793 |
253 | if (rsfp) { |
254 | if (preprocess) |
255 | (void)mypclose(rsfp); |
de3bb511 |
256 | else if ((FILE*)rsfp == stdin) |
395c3793 |
257 | clearerr(stdin); |
258 | else |
259 | (void)fclose(rsfp); |
260 | rsfp = Nullfp; |
261 | } |
e929a76b |
262 | if (minus_n || minus_p) { |
263 | str_set(linestr,minus_p ? ";}continue{print" : ""); |
264 | str_cat(linestr,";}"); |
265 | oldoldbufptr = oldbufptr = s = str_get(linestr); |
266 | bufend = linestr->str_ptr + linestr->str_cur; |
267 | minus_n = minus_p = 0; |
268 | goto retry; |
269 | } |
a687059c |
270 | oldoldbufptr = oldbufptr = s = str_get(linestr); |
e929a76b |
271 | str_set(linestr,""); |
272 | RETURN(';'); /* not infinite loop because rsfp is NULL now */ |
378cc40b |
273 | } |
e929a76b |
274 | if (doextract && *linestr->str_ptr == '#') |
275 | doextract = FALSE; |
276 | } while (doextract); |
a687059c |
277 | oldoldbufptr = oldbufptr = bufptr = s; |
278 | if (perldb) { |
279 | STR *str = Str_new(85,0); |
280 | |
281 | str_sset(str,linestr); |
395c3793 |
282 | astore(stab_xarray(curcmd->c_filestab),(int)curcmd->c_line,str); |
a687059c |
283 | } |
378cc40b |
284 | #ifdef DEBUG |
a687059c |
285 | if (firstline) { |
378cc40b |
286 | char *showinput(); |
287 | s = showinput(); |
288 | } |
289 | #endif |
a687059c |
290 | bufend = linestr->str_ptr + linestr->str_cur; |
e929a76b |
291 | if (curcmd->c_line == 1) { |
9f68db38 |
292 | if (*s == '#' && s[1] == '!') { |
293 | if (!in_eval && !instr(s,"perl") && instr(origargv[0],"perl")) { |
294 | char **newargv; |
295 | char *cmd; |
296 | |
297 | s += 2; |
298 | if (*s == ' ') |
299 | s++; |
300 | cmd = s; |
de3bb511 |
301 | while (s < bufend && !isSPACE(*s)) |
9f68db38 |
302 | s++; |
303 | *s++ = '\0'; |
de3bb511 |
304 | while (s < bufend && isSPACE(*s)) |
9f68db38 |
305 | s++; |
306 | if (s < bufend) { |
307 | Newz(899,newargv,origargc+3,char*); |
308 | newargv[1] = s; |
de3bb511 |
309 | while (s < bufend && !isSPACE(*s)) |
9f68db38 |
310 | s++; |
311 | *s = '\0'; |
312 | Copy(origargv+1, newargv+2, origargc+1, char*); |
313 | } |
314 | else |
315 | newargv = origargv; |
316 | newargv[0] = cmd; |
317 | execv(cmd,newargv); |
318 | fatal("Can't exec %s", cmd); |
319 | } |
320 | } |
321 | else { |
de3bb511 |
322 | while (s < bufend && isSPACE(*s)) |
9f68db38 |
323 | s++; |
324 | if (*s == ':') /* for csh's that have to exec sh scripts */ |
325 | s++; |
326 | } |
ae986130 |
327 | } |
378cc40b |
328 | goto retry; |
fe14fcc3 |
329 | case ' ': case '\t': case '\f': case '\r': case 013: |
378cc40b |
330 | s++; |
331 | goto retry; |
378cc40b |
332 | case '#': |
333 | if (preprocess && s == str_get(linestr) && |
de3bb511 |
334 | s[1] == ' ' && (isDIGIT(s[2]) || strnEQ(s+2,"line ",5)) ) { |
335 | while (*s && !isDIGIT(*s)) |
336 | s++; |
337 | curcmd->c_line = atoi(s)-1; |
338 | while (isDIGIT(*s)) |
339 | s++; |
a687059c |
340 | d = bufend; |
de3bb511 |
341 | while (s < d && isSPACE(*s)) s++; |
378cc40b |
342 | s[strlen(s)-1] = '\0'; /* wipe out newline */ |
343 | if (*s == '"') { |
344 | s++; |
345 | s[strlen(s)-1] = '\0'; /* wipe out trailing quote */ |
346 | } |
347 | if (*s) |
395c3793 |
348 | curcmd->c_filestab = fstab(s); |
378cc40b |
349 | else |
395c3793 |
350 | curcmd->c_filestab = fstab(origfilename); |
a687059c |
351 | oldoldbufptr = oldbufptr = s = str_get(linestr); |
378cc40b |
352 | } |
e929a76b |
353 | /* FALL THROUGH */ |
354 | case '\n': |
a687059c |
355 | if (in_eval && !rsfp) { |
356 | d = bufend; |
357 | while (s < d && *s != '\n') |
378cc40b |
358 | s++; |
0f85fab0 |
359 | if (s < d) |
378cc40b |
360 | s++; |
0f85fab0 |
361 | if (in_format) { |
362 | bufptr = s; |
363 | yylval.formval = load_format(); |
364 | in_format = FALSE; |
365 | oldoldbufptr = oldbufptr = s = bufptr + 1; |
366 | TERM(FORMLIST); |
a687059c |
367 | } |
e929a76b |
368 | curcmd->c_line++; |
378cc40b |
369 | } |
a687059c |
370 | else { |
378cc40b |
371 | *s = '\0'; |
a687059c |
372 | bufend = s; |
373 | } |
378cc40b |
374 | goto retry; |
375 | case '-': |
de3bb511 |
376 | if (s[1] && isALPHA(s[1]) && !isALPHA(s[2])) { |
378cc40b |
377 | s++; |
378 | switch (*s++) { |
379 | case 'r': FTST(O_FTEREAD); |
380 | case 'w': FTST(O_FTEWRITE); |
381 | case 'x': FTST(O_FTEEXEC); |
382 | case 'o': FTST(O_FTEOWNED); |
383 | case 'R': FTST(O_FTRREAD); |
384 | case 'W': FTST(O_FTRWRITE); |
385 | case 'X': FTST(O_FTREXEC); |
386 | case 'O': FTST(O_FTROWNED); |
387 | case 'e': FTST(O_FTIS); |
388 | case 'z': FTST(O_FTZERO); |
389 | case 's': FTST(O_FTSIZE); |
390 | case 'f': FTST(O_FTFILE); |
391 | case 'd': FTST(O_FTDIR); |
392 | case 'l': FTST(O_FTLINK); |
393 | case 'p': FTST(O_FTPIPE); |
394 | case 'S': FTST(O_FTSOCK); |
395 | case 'u': FTST(O_FTSUID); |
396 | case 'g': FTST(O_FTSGID); |
397 | case 'k': FTST(O_FTSVTX); |
398 | case 'b': FTST(O_FTBLK); |
399 | case 'c': FTST(O_FTCHR); |
400 | case 't': FTST(O_FTTTY); |
401 | case 'T': FTST(O_FTTEXT); |
402 | case 'B': FTST(O_FTBINARY); |
395c3793 |
403 | case 'M': stabent("\024",TRUE); FTST(O_FTMTIME); |
404 | case 'A': stabent("\024",TRUE); FTST(O_FTATIME); |
405 | case 'C': stabent("\024",TRUE); FTST(O_FTCTIME); |
378cc40b |
406 | default: |
407 | s -= 2; |
408 | break; |
409 | } |
410 | } |
a687059c |
411 | tmp = *s++; |
412 | if (*s == tmp) { |
413 | s++; |
414 | RETURN(DEC); |
415 | } |
416 | if (expectterm) |
417 | OPERATOR('-'); |
418 | else |
419 | AOP(O_SUBTRACT); |
378cc40b |
420 | case '+': |
a687059c |
421 | tmp = *s++; |
422 | if (*s == tmp) { |
378cc40b |
423 | s++; |
a687059c |
424 | RETURN(INC); |
378cc40b |
425 | } |
a687059c |
426 | if (expectterm) |
427 | OPERATOR('+'); |
428 | else |
429 | AOP(O_ADD); |
430 | |
378cc40b |
431 | case '*': |
a687059c |
432 | if (expectterm) { |
fe14fcc3 |
433 | s = scanident(s,bufend,tokenbuf); |
a687059c |
434 | yylval.stabval = stabent(tokenbuf,TRUE); |
435 | TERM(STAR); |
436 | } |
437 | tmp = *s++; |
438 | if (*s == tmp) { |
439 | s++; |
440 | OPERATOR(POW); |
441 | } |
442 | MOP(O_MULTIPLY); |
378cc40b |
443 | case '%': |
a687059c |
444 | if (expectterm) { |
fe14fcc3 |
445 | s = scanident(s,bufend,tokenbuf); |
6eb13c3b |
446 | yylval.stabval = hadd(stabent(tokenbuf,TRUE)); |
a687059c |
447 | TERM(HSH); |
448 | } |
449 | s++; |
450 | MOP(O_MODULO); |
451 | |
378cc40b |
452 | case '^': |
453 | case '~': |
454 | case '(': |
455 | case ',': |
456 | case ':': |
457 | case '[': |
458 | tmp = *s++; |
459 | OPERATOR(tmp); |
460 | case '{': |
461 | tmp = *s++; |
de3bb511 |
462 | yylval.ival = curcmd->c_line; |
463 | if (isSPACE(*s) || *s == '#') |
378cc40b |
464 | cmdline = NOLINE; /* invalidate current command line number */ |
465 | OPERATOR(tmp); |
466 | case ';': |
e929a76b |
467 | if (curcmd->c_line < cmdline) |
468 | cmdline = curcmd->c_line; |
378cc40b |
469 | tmp = *s++; |
470 | OPERATOR(tmp); |
471 | case ')': |
472 | case ']': |
473 | tmp = *s++; |
474 | TERM(tmp); |
475 | case '}': |
476 | tmp = *s++; |
ffed7fef |
477 | RETURN(tmp); |
378cc40b |
478 | case '&': |
479 | s++; |
480 | tmp = *s++; |
481 | if (tmp == '&') |
482 | OPERATOR(ANDAND); |
483 | s--; |
a687059c |
484 | if (expectterm) { |
485 | d = bufend; |
de3bb511 |
486 | while (s < d && isSPACE(*s)) |
a687059c |
487 | s++; |
de3bb511 |
488 | if (isALPHA(*s) || *s == '_' || *s == '\'') |
a687059c |
489 | *(--s) = '\\'; /* force next ident to WORD */ |
490 | OPERATOR(AMPER); |
491 | } |
378cc40b |
492 | OPERATOR('&'); |
493 | case '|': |
494 | s++; |
495 | tmp = *s++; |
496 | if (tmp == '|') |
497 | OPERATOR(OROR); |
498 | s--; |
499 | OPERATOR('|'); |
500 | case '=': |
501 | s++; |
502 | tmp = *s++; |
503 | if (tmp == '=') |
a687059c |
504 | EOP(O_EQ); |
378cc40b |
505 | if (tmp == '~') |
506 | OPERATOR(MATCH); |
507 | s--; |
508 | OPERATOR('='); |
509 | case '!': |
510 | s++; |
511 | tmp = *s++; |
512 | if (tmp == '=') |
a687059c |
513 | EOP(O_NE); |
378cc40b |
514 | if (tmp == '~') |
515 | OPERATOR(NMATCH); |
516 | s--; |
517 | OPERATOR('!'); |
518 | case '<': |
519 | if (expectterm) { |
520 | s = scanstr(s); |
521 | TERM(RSTRING); |
522 | } |
523 | s++; |
524 | tmp = *s++; |
525 | if (tmp == '<') |
526 | OPERATOR(LS); |
395c3793 |
527 | if (tmp == '=') { |
528 | tmp = *s++; |
529 | if (tmp == '>') |
530 | EOP(O_NCMP); |
531 | s--; |
a687059c |
532 | ROP(O_LE); |
395c3793 |
533 | } |
378cc40b |
534 | s--; |
a687059c |
535 | ROP(O_LT); |
378cc40b |
536 | case '>': |
537 | s++; |
538 | tmp = *s++; |
539 | if (tmp == '>') |
540 | OPERATOR(RS); |
541 | if (tmp == '=') |
a687059c |
542 | ROP(O_GE); |
378cc40b |
543 | s--; |
a687059c |
544 | ROP(O_GT); |
378cc40b |
545 | |
546 | #define SNARFWORD \ |
547 | d = tokenbuf; \ |
de3bb511 |
548 | while (isALNUM(*s) || *s == '\'') \ |
378cc40b |
549 | *d++ = *s++; \ |
663a0e37 |
550 | while (d[-1] == '\'') \ |
a687059c |
551 | d--,s--; \ |
378cc40b |
552 | *d = '\0'; \ |
553 | d = tokenbuf; |
554 | |
555 | case '$': |
de3bb511 |
556 | if (s[1] == '#' && (isALPHA(s[2]) || s[2] == '_')) { |
378cc40b |
557 | s++; |
fe14fcc3 |
558 | s = scanident(s,bufend,tokenbuf); |
378cc40b |
559 | yylval.stabval = aadd(stabent(tokenbuf,TRUE)); |
560 | TERM(ARYLEN); |
561 | } |
a687059c |
562 | d = s; |
fe14fcc3 |
563 | s = scanident(s,bufend,tokenbuf); |
a687059c |
564 | if (reparse) { /* turn ${foo[bar]} into ($foo[bar]) */ |
565 | do_reparse: |
566 | s[-1] = ')'; |
567 | s = d; |
568 | s[1] = s[0]; |
569 | s[0] = '('; |
570 | goto retry; |
571 | } |
378cc40b |
572 | yylval.stabval = stabent(tokenbuf,TRUE); |
573 | TERM(REG); |
574 | |
575 | case '@': |
a687059c |
576 | d = s; |
fe14fcc3 |
577 | s = scanident(s,bufend,tokenbuf); |
a687059c |
578 | if (reparse) |
579 | goto do_reparse; |
e929a76b |
580 | yylval.stabval = aadd(stabent(tokenbuf,TRUE)); |
378cc40b |
581 | TERM(ARY); |
582 | |
583 | case '/': /* may either be division or pattern */ |
584 | case '?': /* may either be conditional or pattern */ |
585 | if (expectterm) { |
586 | s = scanpat(s); |
587 | TERM(PATTERN); |
588 | } |
589 | tmp = *s++; |
a687059c |
590 | if (tmp == '/') |
591 | MOP(O_DIVIDE); |
378cc40b |
592 | OPERATOR(tmp); |
593 | |
594 | case '.': |
de3bb511 |
595 | if (!expectterm || !isDIGIT(s[1])) { |
378cc40b |
596 | tmp = *s++; |
a687059c |
597 | if (*s == tmp) { |
598 | s++; |
378cc40b |
599 | OPERATOR(DOTDOT); |
a687059c |
600 | } |
601 | AOP(O_CONCAT); |
378cc40b |
602 | } |
603 | /* FALL THROUGH */ |
604 | case '0': case '1': case '2': case '3': case '4': |
605 | case '5': case '6': case '7': case '8': case '9': |
606 | case '\'': case '"': case '`': |
607 | s = scanstr(s); |
608 | TERM(RSTRING); |
609 | |
a687059c |
610 | case '\\': /* some magic to force next word to be a WORD */ |
611 | s++; /* used by do and sub to force a separate namespace */ |
612 | /* FALL THROUGH */ |
378cc40b |
613 | case '_': |
614 | SNARFWORD; |
e929a76b |
615 | if (d[1] == '_') { |
616 | if (strEQ(d,"__LINE__") || strEQ(d,"__FILE__")) { |
617 | ARG *arg = op_new(1); |
618 | |
619 | yylval.arg = arg; |
620 | arg->arg_type = O_ITEM; |
621 | if (d[2] == 'L') |
622 | (void)sprintf(tokenbuf,"%ld",(long)curcmd->c_line); |
623 | else |
395c3793 |
624 | strcpy(tokenbuf, stab_val(curcmd->c_filestab)->str_ptr); |
e929a76b |
625 | arg[1].arg_type = A_SINGLE; |
626 | arg[1].arg_ptr.arg_str = str_make(tokenbuf,strlen(tokenbuf)); |
627 | TERM(RSTRING); |
628 | } |
395c3793 |
629 | else if (strEQ(d,"__END__")) { |
630 | #ifndef TAINT |
631 | STAB *stab; |
632 | int fd; |
633 | |
de3bb511 |
634 | /*SUPPRESS 560*/ |
395c3793 |
635 | if (stab = stabent("DATA",FALSE)) { |
636 | stab->str_pok |= SP_MULTI; |
637 | stab_io(stab) = stio_new(); |
638 | stab_io(stab)->ifp = rsfp; |
fe14fcc3 |
639 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
395c3793 |
640 | fd = fileno(rsfp); |
641 | fcntl(fd,F_SETFD,fd >= 3); |
642 | #endif |
643 | if (preprocess) |
644 | stab_io(stab)->type = '|'; |
de3bb511 |
645 | else if ((FILE*)rsfp == stdin) |
395c3793 |
646 | stab_io(stab)->type = '-'; |
647 | else |
648 | stab_io(stab)->type = '<'; |
649 | rsfp = Nullfp; |
650 | } |
651 | #endif |
e929a76b |
652 | goto fake_eof; |
395c3793 |
653 | } |
e929a76b |
654 | } |
a687059c |
655 | break; |
378cc40b |
656 | case 'a': case 'A': |
657 | SNARFWORD; |
34de22dd |
658 | if (strEQ(d,"alarm")) |
659 | UNI(O_ALARM); |
a687059c |
660 | if (strEQ(d,"accept")) |
661 | FOP22(O_ACCEPT); |
662 | if (strEQ(d,"atan2")) |
663 | FUN2(O_ATAN2); |
664 | break; |
378cc40b |
665 | case 'b': case 'B': |
666 | SNARFWORD; |
a687059c |
667 | if (strEQ(d,"bind")) |
668 | FOP2(O_BIND); |
0f85fab0 |
669 | if (strEQ(d,"binmode")) |
670 | FOP(O_BINMODE); |
a687059c |
671 | break; |
378cc40b |
672 | case 'c': case 'C': |
673 | SNARFWORD; |
a687059c |
674 | if (strEQ(d,"chop")) |
675 | LFUN(O_CHOP); |
378cc40b |
676 | if (strEQ(d,"continue")) |
677 | OPERATOR(CONTINUE); |
9f68db38 |
678 | if (strEQ(d,"chdir")) { |
679 | (void)stabent("ENV",TRUE); /* may use HOME */ |
378cc40b |
680 | UNI(O_CHDIR); |
9f68db38 |
681 | } |
378cc40b |
682 | if (strEQ(d,"close")) |
a687059c |
683 | FOP(O_CLOSE); |
684 | if (strEQ(d,"closedir")) |
685 | FOP(O_CLOSEDIR); |
395c3793 |
686 | if (strEQ(d,"cmp")) |
687 | EOP(O_SCMP); |
688 | if (strEQ(d,"caller")) |
689 | UNI(O_CALLER); |
a687059c |
690 | if (strEQ(d,"crypt")) { |
691 | #ifdef FCRYPT |
de3bb511 |
692 | static int cryptseen = 0; |
693 | |
694 | if (!cryptseen++) |
695 | init_des(); |
a687059c |
696 | #endif |
378cc40b |
697 | FUN2(O_CRYPT); |
378cc40b |
698 | } |
a687059c |
699 | if (strEQ(d,"chmod")) |
700 | LOP(O_CHMOD); |
701 | if (strEQ(d,"chown")) |
702 | LOP(O_CHOWN); |
703 | if (strEQ(d,"connect")) |
704 | FOP2(O_CONNECT); |
705 | if (strEQ(d,"cos")) |
706 | UNI(O_COS); |
707 | if (strEQ(d,"chroot")) |
708 | UNI(O_CHROOT); |
709 | break; |
378cc40b |
710 | case 'd': case 'D': |
711 | SNARFWORD; |
a687059c |
712 | if (strEQ(d,"do")) { |
713 | d = bufend; |
de3bb511 |
714 | while (s < d && isSPACE(*s)) |
a687059c |
715 | s++; |
de3bb511 |
716 | if (isALPHA(*s) || *s == '_') |
a687059c |
717 | *(--s) = '\\'; /* force next ident to WORD */ |
378cc40b |
718 | OPERATOR(DO); |
a687059c |
719 | } |
378cc40b |
720 | if (strEQ(d,"die")) |
a687059c |
721 | LOP(O_DIE); |
722 | if (strEQ(d,"defined")) |
723 | LFUN(O_DEFINED); |
378cc40b |
724 | if (strEQ(d,"delete")) |
725 | OPERATOR(DELETE); |
a687059c |
726 | if (strEQ(d,"dbmopen")) |
727 | HFUN3(O_DBMOPEN); |
728 | if (strEQ(d,"dbmclose")) |
729 | HFUN(O_DBMCLOSE); |
730 | if (strEQ(d,"dump")) |
731 | LOOPX(O_DUMP); |
732 | break; |
378cc40b |
733 | case 'e': case 'E': |
734 | SNARFWORD; |
735 | if (strEQ(d,"else")) |
736 | OPERATOR(ELSE); |
737 | if (strEQ(d,"elsif")) { |
e929a76b |
738 | yylval.ival = curcmd->c_line; |
378cc40b |
739 | OPERATOR(ELSIF); |
740 | } |
741 | if (strEQ(d,"eq") || strEQ(d,"EQ")) |
a687059c |
742 | EOP(O_SEQ); |
378cc40b |
743 | if (strEQ(d,"exit")) |
744 | UNI(O_EXIT); |
745 | if (strEQ(d,"eval")) { |
746 | allstabs = TRUE; /* must initialize everything since */ |
747 | UNI(O_EVAL); /* we don't know what will be used */ |
748 | } |
749 | if (strEQ(d,"eof")) |
a687059c |
750 | FOP(O_EOF); |
378cc40b |
751 | if (strEQ(d,"exp")) |
a687059c |
752 | UNI(O_EXP); |
378cc40b |
753 | if (strEQ(d,"each")) |
a687059c |
754 | HFUN(O_EACH); |
378cc40b |
755 | if (strEQ(d,"exec")) { |
a687059c |
756 | set_csh(); |
395c3793 |
757 | LOP(O_EXEC_OP); |
378cc40b |
758 | } |
a687059c |
759 | if (strEQ(d,"endhostent")) |
760 | FUN0(O_EHOSTENT); |
761 | if (strEQ(d,"endnetent")) |
762 | FUN0(O_ENETENT); |
763 | if (strEQ(d,"endservent")) |
764 | FUN0(O_ESERVENT); |
765 | if (strEQ(d,"endprotoent")) |
766 | FUN0(O_EPROTOENT); |
767 | if (strEQ(d,"endpwent")) |
768 | FUN0(O_EPWENT); |
769 | if (strEQ(d,"endgrent")) |
770 | FUN0(O_EGRENT); |
771 | break; |
378cc40b |
772 | case 'f': case 'F': |
773 | SNARFWORD; |
9f68db38 |
774 | if (strEQ(d,"for") || strEQ(d,"foreach")) { |
e929a76b |
775 | yylval.ival = curcmd->c_line; |
378cc40b |
776 | OPERATOR(FOR); |
9f68db38 |
777 | } |
378cc40b |
778 | if (strEQ(d,"format")) { |
a687059c |
779 | d = bufend; |
de3bb511 |
780 | while (s < d && isSPACE(*s)) |
a687059c |
781 | s++; |
de3bb511 |
782 | if (isALPHA(*s) || *s == '_') |
a687059c |
783 | *(--s) = '\\'; /* force next ident to WORD */ |
378cc40b |
784 | in_format = TRUE; |
a687059c |
785 | allstabs = TRUE; /* must initialize everything since */ |
786 | OPERATOR(FORMAT); /* we don't know what will be used */ |
378cc40b |
787 | } |
788 | if (strEQ(d,"fork")) |
789 | FUN0(O_FORK); |
a687059c |
790 | if (strEQ(d,"fcntl")) |
791 | FOP3(O_FCNTL); |
792 | if (strEQ(d,"fileno")) |
793 | FOP(O_FILENO); |
794 | if (strEQ(d,"flock")) |
795 | FOP2(O_FLOCK); |
796 | break; |
378cc40b |
797 | case 'g': case 'G': |
798 | SNARFWORD; |
799 | if (strEQ(d,"gt") || strEQ(d,"GT")) |
a687059c |
800 | ROP(O_SGT); |
378cc40b |
801 | if (strEQ(d,"ge") || strEQ(d,"GE")) |
a687059c |
802 | ROP(O_SGE); |
803 | if (strEQ(d,"grep")) |
804 | FL2(O_GREP); |
378cc40b |
805 | if (strEQ(d,"goto")) |
806 | LOOPX(O_GOTO); |
807 | if (strEQ(d,"gmtime")) |
a687059c |
808 | UNI(O_GMTIME); |
809 | if (strEQ(d,"getc")) |
810 | FOP(O_GETC); |
811 | if (strnEQ(d,"get",3)) { |
812 | d += 3; |
813 | if (*d == 'p') { |
814 | if (strEQ(d,"ppid")) |
815 | FUN0(O_GETPPID); |
816 | if (strEQ(d,"pgrp")) |
817 | UNI(O_GETPGRP); |
818 | if (strEQ(d,"priority")) |
819 | FUN2(O_GETPRIORITY); |
820 | if (strEQ(d,"protobyname")) |
821 | UNI(O_GPBYNAME); |
822 | if (strEQ(d,"protobynumber")) |
823 | FUN1(O_GPBYNUMBER); |
824 | if (strEQ(d,"protoent")) |
825 | FUN0(O_GPROTOENT); |
826 | if (strEQ(d,"pwent")) |
827 | FUN0(O_GPWENT); |
828 | if (strEQ(d,"pwnam")) |
829 | FUN1(O_GPWNAM); |
830 | if (strEQ(d,"pwuid")) |
831 | FUN1(O_GPWUID); |
832 | if (strEQ(d,"peername")) |
833 | FOP(O_GETPEERNAME); |
834 | } |
835 | else if (*d == 'h') { |
836 | if (strEQ(d,"hostbyname")) |
837 | UNI(O_GHBYNAME); |
838 | if (strEQ(d,"hostbyaddr")) |
839 | FUN2(O_GHBYADDR); |
840 | if (strEQ(d,"hostent")) |
841 | FUN0(O_GHOSTENT); |
842 | } |
843 | else if (*d == 'n') { |
844 | if (strEQ(d,"netbyname")) |
845 | UNI(O_GNBYNAME); |
846 | if (strEQ(d,"netbyaddr")) |
847 | FUN2(O_GNBYADDR); |
848 | if (strEQ(d,"netent")) |
849 | FUN0(O_GNETENT); |
850 | } |
851 | else if (*d == 's') { |
852 | if (strEQ(d,"servbyname")) |
853 | FUN2(O_GSBYNAME); |
854 | if (strEQ(d,"servbyport")) |
855 | FUN2(O_GSBYPORT); |
856 | if (strEQ(d,"servent")) |
857 | FUN0(O_GSERVENT); |
858 | if (strEQ(d,"sockname")) |
859 | FOP(O_GETSOCKNAME); |
860 | if (strEQ(d,"sockopt")) |
861 | FOP3(O_GSOCKOPT); |
862 | } |
863 | else if (*d == 'g') { |
864 | if (strEQ(d,"grent")) |
865 | FUN0(O_GGRENT); |
866 | if (strEQ(d,"grnam")) |
867 | FUN1(O_GGRNAM); |
868 | if (strEQ(d,"grgid")) |
869 | FUN1(O_GGRGID); |
870 | } |
871 | else if (*d == 'l') { |
872 | if (strEQ(d,"login")) |
873 | FUN0(O_GETLOGIN); |
874 | } |
875 | d -= 3; |
876 | } |
877 | break; |
378cc40b |
878 | case 'h': case 'H': |
879 | SNARFWORD; |
880 | if (strEQ(d,"hex")) |
a687059c |
881 | UNI(O_HEX); |
882 | break; |
378cc40b |
883 | case 'i': case 'I': |
884 | SNARFWORD; |
885 | if (strEQ(d,"if")) { |
e929a76b |
886 | yylval.ival = curcmd->c_line; |
378cc40b |
887 | OPERATOR(IF); |
888 | } |
889 | if (strEQ(d,"index")) |
395c3793 |
890 | FUN2x(O_INDEX); |
378cc40b |
891 | if (strEQ(d,"int")) |
a687059c |
892 | UNI(O_INT); |
893 | if (strEQ(d,"ioctl")) |
894 | FOP3(O_IOCTL); |
895 | break; |
378cc40b |
896 | case 'j': case 'J': |
897 | SNARFWORD; |
898 | if (strEQ(d,"join")) |
a687059c |
899 | FL2(O_JOIN); |
900 | break; |
378cc40b |
901 | case 'k': case 'K': |
902 | SNARFWORD; |
903 | if (strEQ(d,"keys")) |
a687059c |
904 | HFUN(O_KEYS); |
905 | if (strEQ(d,"kill")) |
906 | LOP(O_KILL); |
907 | break; |
378cc40b |
908 | case 'l': case 'L': |
909 | SNARFWORD; |
910 | if (strEQ(d,"last")) |
911 | LOOPX(O_LAST); |
912 | if (strEQ(d,"local")) |
913 | OPERATOR(LOCAL); |
914 | if (strEQ(d,"length")) |
a687059c |
915 | UNI(O_LENGTH); |
378cc40b |
916 | if (strEQ(d,"lt") || strEQ(d,"LT")) |
a687059c |
917 | ROP(O_SLT); |
378cc40b |
918 | if (strEQ(d,"le") || strEQ(d,"LE")) |
a687059c |
919 | ROP(O_SLE); |
378cc40b |
920 | if (strEQ(d,"localtime")) |
a687059c |
921 | UNI(O_LOCALTIME); |
378cc40b |
922 | if (strEQ(d,"log")) |
a687059c |
923 | UNI(O_LOG); |
378cc40b |
924 | if (strEQ(d,"link")) |
925 | FUN2(O_LINK); |
a687059c |
926 | if (strEQ(d,"listen")) |
927 | FOP2(O_LISTEN); |
928 | if (strEQ(d,"lstat")) |
929 | FOP(O_LSTAT); |
930 | break; |
378cc40b |
931 | case 'm': case 'M': |
663a0e37 |
932 | if (s[1] == '\'') { |
933 | d = "m"; |
934 | s++; |
935 | } |
936 | else { |
937 | SNARFWORD; |
938 | } |
378cc40b |
939 | if (strEQ(d,"m")) { |
940 | s = scanpat(s-1); |
a687059c |
941 | if (yylval.arg) |
942 | TERM(PATTERN); |
943 | else |
944 | RETURN(1); /* force error */ |
378cc40b |
945 | } |
395c3793 |
946 | switch (d[1]) { |
947 | case 'k': |
948 | if (strEQ(d,"mkdir")) |
949 | FUN2(O_MKDIR); |
950 | break; |
951 | case 's': |
952 | if (strEQ(d,"msgctl")) |
953 | FUN3(O_MSGCTL); |
954 | if (strEQ(d,"msgget")) |
955 | FUN2(O_MSGGET); |
956 | if (strEQ(d,"msgrcv")) |
957 | FUN5(O_MSGRCV); |
958 | if (strEQ(d,"msgsnd")) |
959 | FUN3(O_MSGSND); |
960 | break; |
961 | } |
a687059c |
962 | break; |
378cc40b |
963 | case 'n': case 'N': |
964 | SNARFWORD; |
965 | if (strEQ(d,"next")) |
966 | LOOPX(O_NEXT); |
967 | if (strEQ(d,"ne") || strEQ(d,"NE")) |
a687059c |
968 | EOP(O_SNE); |
969 | break; |
378cc40b |
970 | case 'o': case 'O': |
971 | SNARFWORD; |
972 | if (strEQ(d,"open")) |
973 | OPERATOR(OPEN); |
974 | if (strEQ(d,"ord")) |
a687059c |
975 | UNI(O_ORD); |
378cc40b |
976 | if (strEQ(d,"oct")) |
a687059c |
977 | UNI(O_OCT); |
978 | if (strEQ(d,"opendir")) |
d48672a2 |
979 | FOP2(O_OPEN_DIR); |
a687059c |
980 | break; |
378cc40b |
981 | case 'p': case 'P': |
982 | SNARFWORD; |
983 | if (strEQ(d,"print")) { |
a687059c |
984 | checkcomma(s,"filehandle"); |
985 | LOP(O_PRINT); |
378cc40b |
986 | } |
987 | if (strEQ(d,"printf")) { |
a687059c |
988 | checkcomma(s,"filehandle"); |
989 | LOP(O_PRTF); |
378cc40b |
990 | } |
991 | if (strEQ(d,"push")) { |
992 | yylval.ival = O_PUSH; |
993 | OPERATOR(PUSH); |
994 | } |
995 | if (strEQ(d,"pop")) |
996 | OPERATOR(POP); |
a687059c |
997 | if (strEQ(d,"pack")) |
998 | FL2(O_PACK); |
999 | if (strEQ(d,"package")) |
1000 | OPERATOR(PACKAGE); |
9f68db38 |
1001 | if (strEQ(d,"pipe")) |
1002 | FOP22(O_PIPE); |
a687059c |
1003 | break; |
378cc40b |
1004 | case 'q': case 'Q': |
1005 | SNARFWORD; |
a687059c |
1006 | if (strEQ(d,"q")) { |
1007 | s = scanstr(s-1); |
1008 | TERM(RSTRING); |
1009 | } |
1010 | if (strEQ(d,"qq")) { |
1011 | s = scanstr(s-2); |
1012 | TERM(RSTRING); |
1013 | } |
fe14fcc3 |
1014 | if (strEQ(d,"qx")) { |
1015 | s = scanstr(s-2); |
1016 | TERM(RSTRING); |
1017 | } |
a687059c |
1018 | break; |
378cc40b |
1019 | case 'r': case 'R': |
1020 | SNARFWORD; |
a687059c |
1021 | if (strEQ(d,"return")) |
9f68db38 |
1022 | OLDLOP(O_RETURN); |
e929a76b |
1023 | if (strEQ(d,"require")) { |
1024 | allstabs = TRUE; /* must initialize everything since */ |
1025 | UNI(O_REQUIRE); /* we don't know what will be used */ |
1026 | } |
378cc40b |
1027 | if (strEQ(d,"reset")) |
1028 | UNI(O_RESET); |
1029 | if (strEQ(d,"redo")) |
1030 | LOOPX(O_REDO); |
1031 | if (strEQ(d,"rename")) |
1032 | FUN2(O_RENAME); |
a687059c |
1033 | if (strEQ(d,"rand")) |
1034 | UNI(O_RAND); |
1035 | if (strEQ(d,"rmdir")) |
1036 | UNI(O_RMDIR); |
1037 | if (strEQ(d,"rindex")) |
395c3793 |
1038 | FUN2x(O_RINDEX); |
a687059c |
1039 | if (strEQ(d,"read")) |
1040 | FOP3(O_READ); |
1041 | if (strEQ(d,"readdir")) |
1042 | FOP(O_READDIR); |
1043 | if (strEQ(d,"rewinddir")) |
1044 | FOP(O_REWINDDIR); |
1045 | if (strEQ(d,"recv")) |
1046 | FOP4(O_RECV); |
1047 | if (strEQ(d,"reverse")) |
1048 | LOP(O_REVERSE); |
1049 | if (strEQ(d,"readlink")) |
1050 | UNI(O_READLINK); |
1051 | break; |
378cc40b |
1052 | case 's': case 'S': |
663a0e37 |
1053 | if (s[1] == '\'') { |
1054 | d = "s"; |
1055 | s++; |
1056 | } |
1057 | else { |
1058 | SNARFWORD; |
1059 | } |
378cc40b |
1060 | if (strEQ(d,"s")) { |
1061 | s = scansubst(s); |
a687059c |
1062 | if (yylval.arg) |
1063 | TERM(SUBST); |
1064 | else |
1065 | RETURN(1); /* force error */ |
1066 | } |
1067 | switch (d[1]) { |
1068 | case 'a': |
1069 | case 'b': |
395c3793 |
1070 | break; |
a687059c |
1071 | case 'c': |
395c3793 |
1072 | if (strEQ(d,"scalar")) |
1073 | UNI(O_SCALAR); |
1074 | break; |
a687059c |
1075 | case 'd': |
1076 | break; |
1077 | case 'e': |
1078 | if (strEQ(d,"select")) |
e929a76b |
1079 | OPERATOR(SSELECT); |
a687059c |
1080 | if (strEQ(d,"seek")) |
1081 | FOP3(O_SEEK); |
395c3793 |
1082 | if (strEQ(d,"semctl")) |
1083 | FUN4(O_SEMCTL); |
1084 | if (strEQ(d,"semget")) |
1085 | FUN3(O_SEMGET); |
1086 | if (strEQ(d,"semop")) |
1087 | FUN2(O_SEMOP); |
a687059c |
1088 | if (strEQ(d,"send")) |
1089 | FOP3(O_SEND); |
1090 | if (strEQ(d,"setpgrp")) |
1091 | FUN2(O_SETPGRP); |
1092 | if (strEQ(d,"setpriority")) |
1093 | FUN3(O_SETPRIORITY); |
1094 | if (strEQ(d,"sethostent")) |
1095 | FUN1(O_SHOSTENT); |
1096 | if (strEQ(d,"setnetent")) |
1097 | FUN1(O_SNETENT); |
1098 | if (strEQ(d,"setservent")) |
1099 | FUN1(O_SSERVENT); |
1100 | if (strEQ(d,"setprotoent")) |
1101 | FUN1(O_SPROTOENT); |
1102 | if (strEQ(d,"setpwent")) |
1103 | FUN0(O_SPWENT); |
1104 | if (strEQ(d,"setgrent")) |
1105 | FUN0(O_SGRENT); |
1106 | if (strEQ(d,"seekdir")) |
1107 | FOP2(O_SEEKDIR); |
1108 | if (strEQ(d,"setsockopt")) |
1109 | FOP4(O_SSOCKOPT); |
1110 | break; |
1111 | case 'f': |
1112 | case 'g': |
1113 | break; |
1114 | case 'h': |
1115 | if (strEQ(d,"shift")) |
1116 | TERM(SHIFT); |
395c3793 |
1117 | if (strEQ(d,"shmctl")) |
1118 | FUN3(O_SHMCTL); |
1119 | if (strEQ(d,"shmget")) |
1120 | FUN3(O_SHMGET); |
1121 | if (strEQ(d,"shmread")) |
1122 | FUN4(O_SHMREAD); |
1123 | if (strEQ(d,"shmwrite")) |
1124 | FUN4(O_SHMWRITE); |
a687059c |
1125 | if (strEQ(d,"shutdown")) |
1126 | FOP2(O_SHUTDOWN); |
1127 | break; |
1128 | case 'i': |
1129 | if (strEQ(d,"sin")) |
1130 | UNI(O_SIN); |
1131 | break; |
1132 | case 'j': |
1133 | case 'k': |
1134 | break; |
1135 | case 'l': |
1136 | if (strEQ(d,"sleep")) |
1137 | UNI(O_SLEEP); |
1138 | break; |
1139 | case 'm': |
1140 | case 'n': |
1141 | break; |
1142 | case 'o': |
1143 | if (strEQ(d,"socket")) |
1144 | FOP4(O_SOCKET); |
1145 | if (strEQ(d,"socketpair")) |
e929a76b |
1146 | FOP25(O_SOCKPAIR); |
a687059c |
1147 | if (strEQ(d,"sort")) { |
1148 | checkcomma(s,"subroutine name"); |
1149 | d = bufend; |
de3bb511 |
1150 | while (s < d && isSPACE(*s)) s++; |
a687059c |
1151 | if (*s == ';' || *s == ')') /* probably a close */ |
1152 | fatal("sort is now a reserved word"); |
de3bb511 |
1153 | if (isALPHA(*s) || *s == '_') { |
1154 | /*SUPPRESS 530*/ |
1155 | for (d = s; isALNUM(*d); d++) ; |
03a14243 |
1156 | strncpy(tokenbuf,s,d-s); |
1157 | if (strNE(tokenbuf,"keys") && |
1158 | strNE(tokenbuf,"values") && |
1159 | strNE(tokenbuf,"split") && |
1160 | strNE(tokenbuf,"grep") && |
1161 | strNE(tokenbuf,"readdir") && |
1162 | strNE(tokenbuf,"unpack") && |
1163 | strNE(tokenbuf,"do") && |
de3bb511 |
1164 | strNE(tokenbuf,"eval") && |
1165 | (d >= bufend || isSPACE(*d)) ) |
a687059c |
1166 | *(--s) = '\\'; /* force next ident to WORD */ |
1167 | } |
1168 | LOP(O_SORT); |
1169 | } |
1170 | break; |
1171 | case 'p': |
1172 | if (strEQ(d,"split")) |
1173 | TERM(SPLIT); |
1174 | if (strEQ(d,"sprintf")) |
1175 | FL(O_SPRINTF); |
79a0689e |
1176 | if (strEQ(d,"splice")) { |
1177 | yylval.ival = O_SPLICE; |
1178 | OPERATOR(PUSH); |
1179 | } |
a687059c |
1180 | break; |
1181 | case 'q': |
1182 | if (strEQ(d,"sqrt")) |
1183 | UNI(O_SQRT); |
1184 | break; |
1185 | case 'r': |
1186 | if (strEQ(d,"srand")) |
1187 | UNI(O_SRAND); |
1188 | break; |
1189 | case 's': |
1190 | break; |
1191 | case 't': |
1192 | if (strEQ(d,"stat")) |
1193 | FOP(O_STAT); |
1194 | if (strEQ(d,"study")) { |
1195 | sawstudy++; |
1196 | LFUN(O_STUDY); |
1197 | } |
1198 | break; |
1199 | case 'u': |
1200 | if (strEQ(d,"substr")) |
395c3793 |
1201 | FUN2x(O_SUBSTR); |
a687059c |
1202 | if (strEQ(d,"sub")) { |
de3bb511 |
1203 | yylval.ival = savestack->ary_fill; /* restore stuff on reduce */ |
988174c1 |
1204 | savelong(&subline); |
1205 | saveitem(subname); |
de3bb511 |
1206 | |
e929a76b |
1207 | subline = curcmd->c_line; |
a687059c |
1208 | d = bufend; |
de3bb511 |
1209 | while (s < d && isSPACE(*s)) |
a687059c |
1210 | s++; |
de3bb511 |
1211 | if (isALPHA(*s) || *s == '_' || *s == '\'') { |
988174c1 |
1212 | str_sset(subname,curstname); |
1213 | str_ncat(subname,"'",1); |
1214 | for (d = s+1; isALNUM(*d) || *d == '\''; d++) |
1215 | /*SUPPRESS 530*/ |
1216 | ; |
1217 | if (d[-1] == '\'') |
1218 | d--; |
1219 | str_ncat(subname,s,d-s); |
a687059c |
1220 | *(--s) = '\\'; /* force next ident to WORD */ |
1221 | } |
988174c1 |
1222 | else |
a687059c |
1223 | str_set(subname,"?"); |
1224 | OPERATOR(SUB); |
1225 | } |
1226 | break; |
1227 | case 'v': |
1228 | case 'w': |
1229 | case 'x': |
1230 | break; |
1231 | case 'y': |
1232 | if (strEQ(d,"system")) { |
1233 | set_csh(); |
1234 | LOP(O_SYSTEM); |
1235 | } |
1236 | if (strEQ(d,"symlink")) |
1237 | FUN2(O_SYMLINK); |
1238 | if (strEQ(d,"syscall")) |
1239 | LOP(O_SYSCALL); |
395c3793 |
1240 | if (strEQ(d,"sysread")) |
1241 | FOP3(O_SYSREAD); |
1242 | if (strEQ(d,"syswrite")) |
1243 | FOP3(O_SYSWRITE); |
a687059c |
1244 | break; |
1245 | case 'z': |
1246 | break; |
1247 | } |
1248 | break; |
378cc40b |
1249 | case 't': case 'T': |
1250 | SNARFWORD; |
1251 | if (strEQ(d,"tr")) { |
1252 | s = scantrans(s); |
a687059c |
1253 | if (yylval.arg) |
1254 | TERM(TRANS); |
1255 | else |
1256 | RETURN(1); /* force error */ |
378cc40b |
1257 | } |
1258 | if (strEQ(d,"tell")) |
a687059c |
1259 | FOP(O_TELL); |
1260 | if (strEQ(d,"telldir")) |
1261 | FOP(O_TELLDIR); |
378cc40b |
1262 | if (strEQ(d,"time")) |
1263 | FUN0(O_TIME); |
1264 | if (strEQ(d,"times")) |
1265 | FUN0(O_TMS); |
e929a76b |
1266 | if (strEQ(d,"truncate")) |
1267 | FOP2(O_TRUNCATE); |
a687059c |
1268 | break; |
378cc40b |
1269 | case 'u': case 'U': |
1270 | SNARFWORD; |
1271 | if (strEQ(d,"using")) |
1272 | OPERATOR(USING); |
1273 | if (strEQ(d,"until")) { |
e929a76b |
1274 | yylval.ival = curcmd->c_line; |
378cc40b |
1275 | OPERATOR(UNTIL); |
1276 | } |
1277 | if (strEQ(d,"unless")) { |
e929a76b |
1278 | yylval.ival = curcmd->c_line; |
378cc40b |
1279 | OPERATOR(UNLESS); |
1280 | } |
a687059c |
1281 | if (strEQ(d,"unlink")) |
1282 | LOP(O_UNLINK); |
1283 | if (strEQ(d,"undef")) |
1284 | LFUN(O_UNDEF); |
1285 | if (strEQ(d,"unpack")) |
1286 | FUN2(O_UNPACK); |
1287 | if (strEQ(d,"utime")) |
1288 | LOP(O_UTIME); |
378cc40b |
1289 | if (strEQ(d,"umask")) |
a687059c |
1290 | UNI(O_UMASK); |
378cc40b |
1291 | if (strEQ(d,"unshift")) { |
1292 | yylval.ival = O_UNSHIFT; |
1293 | OPERATOR(PUSH); |
1294 | } |
a687059c |
1295 | break; |
378cc40b |
1296 | case 'v': case 'V': |
1297 | SNARFWORD; |
1298 | if (strEQ(d,"values")) |
a687059c |
1299 | HFUN(O_VALUES); |
1300 | if (strEQ(d,"vec")) { |
1301 | sawvec = TRUE; |
1302 | FUN3(O_VEC); |
1303 | } |
1304 | break; |
378cc40b |
1305 | case 'w': case 'W': |
1306 | SNARFWORD; |
378cc40b |
1307 | if (strEQ(d,"while")) { |
e929a76b |
1308 | yylval.ival = curcmd->c_line; |
378cc40b |
1309 | OPERATOR(WHILE); |
1310 | } |
a687059c |
1311 | if (strEQ(d,"warn")) |
1312 | LOP(O_WARN); |
378cc40b |
1313 | if (strEQ(d,"wait")) |
1314 | FUN0(O_WAIT); |
395c3793 |
1315 | if (strEQ(d,"waitpid")) |
1316 | FUN2(O_WAITPID); |
a687059c |
1317 | if (strEQ(d,"wantarray")) { |
1318 | yylval.arg = op_new(1); |
1319 | yylval.arg->arg_type = O_ITEM; |
1320 | yylval.arg[1].arg_type = A_WANTARRAY; |
1321 | TERM(RSTRING); |
1322 | } |
1323 | if (strEQ(d,"write")) |
1324 | FOP(O_WRITE); |
1325 | break; |
378cc40b |
1326 | case 'x': case 'X': |
1327 | SNARFWORD; |
1328 | if (!expectterm && strEQ(d,"x")) |
a687059c |
1329 | MOP(O_REPEAT); |
1330 | break; |
378cc40b |
1331 | case 'y': case 'Y': |
663a0e37 |
1332 | if (s[1] == '\'') { |
1333 | d = "y"; |
1334 | s++; |
1335 | } |
1336 | else { |
1337 | SNARFWORD; |
1338 | } |
378cc40b |
1339 | if (strEQ(d,"y")) { |
1340 | s = scantrans(s); |
1341 | TERM(TRANS); |
1342 | } |
a687059c |
1343 | break; |
378cc40b |
1344 | case 'z': case 'Z': |
1345 | SNARFWORD; |
a687059c |
1346 | break; |
1347 | } |
1348 | yylval.cval = savestr(d); |
1349 | expectterm = FALSE; |
1350 | if (oldoldbufptr && oldoldbufptr < bufptr) { |
de3bb511 |
1351 | while (isSPACE(*oldoldbufptr)) |
a687059c |
1352 | oldoldbufptr++; |
1353 | if (*oldoldbufptr == 'p' && strnEQ(oldoldbufptr,"print",5)) |
1354 | expectterm = TRUE; |
1355 | else if (*oldoldbufptr == 's' && strnEQ(oldoldbufptr,"sort",4)) |
1356 | expectterm = TRUE; |
1357 | } |
1358 | return (CLINE, bufptr = s, (int)WORD); |
1359 | } |
1360 | |
fe14fcc3 |
1361 | void |
a687059c |
1362 | checkcomma(s,what) |
1363 | register char *s; |
1364 | char *what; |
1365 | { |
fe14fcc3 |
1366 | char *someword; |
e929a76b |
1367 | |
a687059c |
1368 | if (*s == '(') |
1369 | s++; |
de3bb511 |
1370 | while (s < bufend && isSPACE(*s)) |
a687059c |
1371 | s++; |
de3bb511 |
1372 | if (isALPHA(*s) || *s == '_') { |
fe14fcc3 |
1373 | someword = s++; |
de3bb511 |
1374 | while (isALNUM(*s)) |
a687059c |
1375 | s++; |
de3bb511 |
1376 | while (s < bufend && isSPACE(*s)) |
a687059c |
1377 | s++; |
e929a76b |
1378 | if (*s == ',') { |
1379 | *s = '\0'; |
fe14fcc3 |
1380 | someword = instr( |
e929a76b |
1381 | "tell eof times getlogin wait length shift umask getppid \ |
1382 | cos exp int log rand sin sqrt ord wantarray", |
fe14fcc3 |
1383 | someword); |
e929a76b |
1384 | *s = ','; |
fe14fcc3 |
1385 | if (someword) |
e929a76b |
1386 | return; |
a687059c |
1387 | fatal("No comma allowed after %s", what); |
e929a76b |
1388 | } |
378cc40b |
1389 | } |
1390 | } |
1391 | |
1392 | char * |
fe14fcc3 |
1393 | scanident(s,send,dest) |
378cc40b |
1394 | register char *s; |
a687059c |
1395 | register char *send; |
378cc40b |
1396 | char *dest; |
1397 | { |
1398 | register char *d; |
a687059c |
1399 | int brackets = 0; |
378cc40b |
1400 | |
a687059c |
1401 | reparse = Nullch; |
378cc40b |
1402 | s++; |
1403 | d = dest; |
de3bb511 |
1404 | if (isDIGIT(*s)) { |
1405 | while (isDIGIT(*s)) |
378cc40b |
1406 | *d++ = *s++; |
1407 | } |
1408 | else { |
de3bb511 |
1409 | while (isALNUM(*s) || *s == '\'') |
378cc40b |
1410 | *d++ = *s++; |
1411 | } |
663a0e37 |
1412 | while (d > dest+1 && d[-1] == '\'') |
a687059c |
1413 | d--,s--; |
378cc40b |
1414 | *d = '\0'; |
1415 | d = dest; |
1416 | if (!*d) { |
1417 | *d = *s++; |
a687059c |
1418 | if (*d == '{' /* } */ ) { |
378cc40b |
1419 | d = dest; |
a687059c |
1420 | brackets++; |
1421 | while (s < send && brackets) { |
de3bb511 |
1422 | if (!reparse && (d == dest || (*s && isALNUM(*s) ))) { |
a687059c |
1423 | *d++ = *s++; |
1424 | continue; |
1425 | } |
1426 | else if (!reparse) |
1427 | reparse = s; |
1428 | switch (*s++) { |
1429 | /* { */ |
1430 | case '}': |
1431 | brackets--; |
1432 | if (reparse && reparse == s - 1) |
1433 | reparse = Nullch; |
1434 | break; |
1435 | case '{': /* } */ |
1436 | brackets++; |
1437 | break; |
1438 | } |
1439 | } |
378cc40b |
1440 | *d = '\0'; |
1441 | d = dest; |
378cc40b |
1442 | } |
1443 | else |
1444 | d[1] = '\0'; |
1445 | } |
de3bb511 |
1446 | if (*d == '^' && (isUPPER(*s) || index("[\\]^_?", *s))) { |
1447 | #ifdef DEBUGGING |
1448 | if (*s == 'D') |
1449 | debug |= 32768; |
1450 | #endif |
fe14fcc3 |
1451 | *d = *s++ ^ 64; |
de3bb511 |
1452 | } |
378cc40b |
1453 | return s; |
1454 | } |
1455 | |
de3bb511 |
1456 | void |
d48672a2 |
1457 | scanconst(spat,string,len) |
1458 | SPAT *spat; |
378cc40b |
1459 | char *string; |
a687059c |
1460 | int len; |
378cc40b |
1461 | { |
de3bb511 |
1462 | register STR *tmpstr; |
378cc40b |
1463 | register char *t; |
1464 | register char *d; |
a687059c |
1465 | register char *e; |
d48672a2 |
1466 | char *origstring = string; |
1467 | static char *vert = "|"; |
378cc40b |
1468 | |
d48672a2 |
1469 | if (ninstr(string, string+len, vert, vert+1)) |
de3bb511 |
1470 | return; |
d48672a2 |
1471 | if (*string == '^') |
1472 | string++, len--; |
de3bb511 |
1473 | tmpstr = Str_new(86,len); |
1474 | str_nset(tmpstr,string,len); |
1475 | t = str_get(tmpstr); |
a687059c |
1476 | e = t + len; |
de3bb511 |
1477 | tmpstr->str_u.str_useful = 100; |
a687059c |
1478 | for (d=t; d < e; ) { |
378cc40b |
1479 | switch (*d) { |
a687059c |
1480 | case '{': |
de3bb511 |
1481 | if (isDIGIT(d[1])) |
a687059c |
1482 | e = d; |
1483 | else |
1484 | goto defchar; |
1485 | break; |
1486 | case '.': case '[': case '$': case '(': case ')': case '|': case '+': |
de3bb511 |
1487 | case '^': |
a687059c |
1488 | e = d; |
378cc40b |
1489 | break; |
1490 | case '\\': |
de3bb511 |
1491 | if (d[1] && index("wWbB0123456789sSdDlLuUExc",d[1])) { |
a687059c |
1492 | e = d; |
378cc40b |
1493 | break; |
1494 | } |
a687059c |
1495 | (void)bcopy(d+1,d,e-d); |
1496 | e--; |
378cc40b |
1497 | switch(*d) { |
1498 | case 'n': |
1499 | *d = '\n'; |
1500 | break; |
1501 | case 't': |
1502 | *d = '\t'; |
1503 | break; |
1504 | case 'f': |
1505 | *d = '\f'; |
1506 | break; |
1507 | case 'r': |
1508 | *d = '\r'; |
1509 | break; |
fe14fcc3 |
1510 | case 'e': |
1511 | *d = '\033'; |
1512 | break; |
1513 | case 'a': |
1514 | *d = '\007'; |
1515 | break; |
378cc40b |
1516 | } |
1517 | /* FALL THROUGH */ |
1518 | default: |
a687059c |
1519 | defchar: |
1520 | if (d[1] == '*' || (d[1] == '{' && d[2] == '0') || d[1] == '?') { |
1521 | e = d; |
378cc40b |
1522 | break; |
1523 | } |
1524 | d++; |
1525 | } |
1526 | } |
a687059c |
1527 | if (d == t) { |
de3bb511 |
1528 | str_free(tmpstr); |
1529 | return; |
378cc40b |
1530 | } |
a687059c |
1531 | *d = '\0'; |
de3bb511 |
1532 | tmpstr->str_cur = d - t; |
d48672a2 |
1533 | if (d == t+len) |
1534 | spat->spat_flags |= SPAT_ALL; |
1535 | if (*origstring != '^') |
1536 | spat->spat_flags |= SPAT_SCANFIRST; |
de3bb511 |
1537 | spat->spat_short = tmpstr; |
d48672a2 |
1538 | spat->spat_slen = d - t; |
378cc40b |
1539 | } |
1540 | |
1541 | char * |
1542 | scanpat(s) |
1543 | register char *s; |
1544 | { |
a687059c |
1545 | register SPAT *spat; |
378cc40b |
1546 | register char *d; |
a687059c |
1547 | register char *e; |
1548 | int len; |
1549 | SPAT savespat; |
395c3793 |
1550 | STR *str = Str_new(93,0); |
1462b684 |
1551 | char delim; |
378cc40b |
1552 | |
a687059c |
1553 | Newz(801,spat,1,SPAT); |
1554 | spat->spat_next = curstash->tbl_spatroot; /* link into spat list */ |
1555 | curstash->tbl_spatroot = spat; |
378cc40b |
1556 | |
1557 | switch (*s++) { |
1558 | case 'm': |
1559 | s++; |
1560 | break; |
1561 | case '/': |
1562 | break; |
1563 | case '?': |
1564 | spat->spat_flags |= SPAT_ONCE; |
1565 | break; |
1566 | default: |
1567 | fatal("panic: scanpat"); |
1568 | } |
395c3793 |
1569 | s = str_append_till(str,s,bufend,s[-1],patleave); |
a687059c |
1570 | if (s >= bufend) { |
395c3793 |
1571 | str_free(str); |
a687059c |
1572 | yyerror("Search pattern not terminated"); |
1573 | yylval.arg = Nullarg; |
1574 | return s; |
1575 | } |
1462b684 |
1576 | delim = *s++; |
d48672a2 |
1577 | while (*s == 'i' || *s == 'o' || *s == 'g') { |
a687059c |
1578 | if (*s == 'i') { |
1579 | s++; |
1580 | sawi = TRUE; |
1581 | spat->spat_flags |= SPAT_FOLD; |
1582 | } |
1583 | if (*s == 'o') { |
1584 | s++; |
1585 | spat->spat_flags |= SPAT_KEEP; |
1586 | } |
d48672a2 |
1587 | if (*s == 'g') { |
1588 | s++; |
1589 | spat->spat_flags |= SPAT_GLOBAL; |
1590 | } |
378cc40b |
1591 | } |
395c3793 |
1592 | len = str->str_cur; |
1593 | e = str->str_ptr + len; |
1462b684 |
1594 | if (delim == '\'') |
1595 | d = e; |
1596 | else |
1597 | d = str->str_ptr; |
1598 | for (; d < e; d++) { |
e929a76b |
1599 | if (*d == '\\') |
1600 | d++; |
1601 | else if ((*d == '$' && d[1] && d[1] != '|' && d[1] != ')') || |
1602 | (*d == '@')) { |
378cc40b |
1603 | register ARG *arg; |
1604 | |
1605 | spat->spat_runtime = arg = op_new(1); |
1606 | arg->arg_type = O_ITEM; |
1607 | arg[1].arg_type = A_DOUBLE; |
395c3793 |
1608 | arg[1].arg_ptr.arg_str = str_smake(str); |
fe14fcc3 |
1609 | d = scanident(d,bufend,buf); |
a687059c |
1610 | (void)stabent(buf,TRUE); /* make sure it's created */ |
1611 | for (; d < e; d++) { |
e929a76b |
1612 | if (*d == '\\') |
1613 | d++; |
1614 | else if (*d == '$' && d[1] && d[1] != '|' && d[1] != ')') { |
fe14fcc3 |
1615 | d = scanident(d,bufend,buf); |
a687059c |
1616 | (void)stabent(buf,TRUE); |
1617 | } |
e929a76b |
1618 | else if (*d == '@') { |
fe14fcc3 |
1619 | d = scanident(d,bufend,buf); |
a687059c |
1620 | if (strEQ(buf,"ARGV") || strEQ(buf,"ENV") || |
1621 | strEQ(buf,"SIG") || strEQ(buf,"INC")) |
1622 | (void)stabent(buf,TRUE); |
1623 | } |
1624 | } |
378cc40b |
1625 | goto got_pat; /* skip compiling for now */ |
1626 | } |
1627 | } |
a687059c |
1628 | if (spat->spat_flags & SPAT_FOLD) |
1629 | #ifdef STRUCTCOPY |
1630 | savespat = *spat; |
1631 | #else |
1632 | (void)bcopy((char *)spat, (char *)&savespat, sizeof(SPAT)); |
1633 | #endif |
d48672a2 |
1634 | scanconst(spat,str->str_ptr,len); |
a687059c |
1635 | if ((spat->spat_flags & SPAT_ALL) && (spat->spat_flags & SPAT_SCANFIRST)) { |
1636 | fbmcompile(spat->spat_short, spat->spat_flags & SPAT_FOLD); |
395c3793 |
1637 | spat->spat_regexp = regcomp(str->str_ptr,str->str_ptr+len, |
e929a76b |
1638 | spat->spat_flags & SPAT_FOLD); |
a687059c |
1639 | /* Note that this regexp can still be used if someone says |
1640 | * something like /a/ && s//b/; so we can't delete it. |
1641 | */ |
1642 | } |
1643 | else { |
1644 | if (spat->spat_flags & SPAT_FOLD) |
1645 | #ifdef STRUCTCOPY |
1646 | *spat = savespat; |
1647 | #else |
1648 | (void)bcopy((char *)&savespat, (char *)spat, sizeof(SPAT)); |
1649 | #endif |
1650 | if (spat->spat_short) |
1651 | fbmcompile(spat->spat_short, spat->spat_flags & SPAT_FOLD); |
395c3793 |
1652 | spat->spat_regexp = regcomp(str->str_ptr,str->str_ptr+len, |
fe14fcc3 |
1653 | spat->spat_flags & SPAT_FOLD); |
a687059c |
1654 | hoistmust(spat); |
1655 | } |
378cc40b |
1656 | got_pat: |
395c3793 |
1657 | str_free(str); |
378cc40b |
1658 | yylval.arg = make_match(O_MATCH,stab2arg(A_STAB,defstab),spat); |
1659 | return s; |
1660 | } |
1661 | |
1662 | char * |
1663 | scansubst(s) |
1664 | register char *s; |
1665 | { |
a687059c |
1666 | register SPAT *spat; |
378cc40b |
1667 | register char *d; |
a687059c |
1668 | register char *e; |
1669 | int len; |
395c3793 |
1670 | STR *str = Str_new(93,0); |
378cc40b |
1671 | |
a687059c |
1672 | Newz(802,spat,1,SPAT); |
1673 | spat->spat_next = curstash->tbl_spatroot; /* link into spat list */ |
1674 | curstash->tbl_spatroot = spat; |
378cc40b |
1675 | |
395c3793 |
1676 | s = str_append_till(str,s+1,bufend,*s,patleave); |
a687059c |
1677 | if (s >= bufend) { |
395c3793 |
1678 | str_free(str); |
a687059c |
1679 | yyerror("Substitution pattern not terminated"); |
1680 | yylval.arg = Nullarg; |
1681 | return s; |
1682 | } |
395c3793 |
1683 | len = str->str_cur; |
1684 | e = str->str_ptr + len; |
1685 | for (d = str->str_ptr; d < e; d++) { |
1686 | if (*d == '\\') |
1687 | d++; |
1688 | else if ((*d == '$' && d[1] && d[1] != '|' && /*(*/ d[1] != ')') || |
1689 | *d == '@' ) { |
378cc40b |
1690 | register ARG *arg; |
1691 | |
1692 | spat->spat_runtime = arg = op_new(1); |
1693 | arg->arg_type = O_ITEM; |
1694 | arg[1].arg_type = A_DOUBLE; |
395c3793 |
1695 | arg[1].arg_ptr.arg_str = str_smake(str); |
de3bb511 |
1696 | d = scanident(d,e,buf); |
a687059c |
1697 | (void)stabent(buf,TRUE); /* make sure it's created */ |
1698 | for (; *d; d++) { |
1699 | if (*d == '$' && d[1] && d[-1] != '\\' && d[1] != '|') { |
de3bb511 |
1700 | d = scanident(d,e,buf); |
a687059c |
1701 | (void)stabent(buf,TRUE); |
1702 | } |
1703 | else if (*d == '@' && d[-1] != '\\') { |
de3bb511 |
1704 | d = scanident(d,e,buf); |
a687059c |
1705 | if (strEQ(buf,"ARGV") || strEQ(buf,"ENV") || |
1706 | strEQ(buf,"SIG") || strEQ(buf,"INC")) |
1707 | (void)stabent(buf,TRUE); |
1708 | } |
1709 | } |
378cc40b |
1710 | goto get_repl; /* skip compiling for now */ |
1711 | } |
1712 | } |
d48672a2 |
1713 | scanconst(spat,str->str_ptr,len); |
378cc40b |
1714 | get_repl: |
1715 | s = scanstr(s); |
a687059c |
1716 | if (s >= bufend) { |
395c3793 |
1717 | str_free(str); |
a687059c |
1718 | yyerror("Substitution replacement not terminated"); |
1719 | yylval.arg = Nullarg; |
1720 | return s; |
1721 | } |
378cc40b |
1722 | spat->spat_repl = yylval.arg; |
a687059c |
1723 | if ((spat->spat_repl[1].arg_type & A_MASK) == A_SINGLE) |
1724 | spat->spat_flags |= SPAT_CONST; |
1725 | else if ((spat->spat_repl[1].arg_type & A_MASK) == A_DOUBLE) { |
1726 | STR *tmpstr; |
1727 | register char *t; |
1728 | |
1729 | spat->spat_flags |= SPAT_CONST; |
1730 | tmpstr = spat->spat_repl[1].arg_ptr.arg_str; |
1731 | e = tmpstr->str_ptr + tmpstr->str_cur; |
1732 | for (t = tmpstr->str_ptr; t < e; t++) { |
9f68db38 |
1733 | if (*t == '$' && t[1] && (index("`'&+0123456789",t[1]) || |
de3bb511 |
1734 | (t[1] == '{' /*}*/ && isDIGIT(t[2])) )) |
a687059c |
1735 | spat->spat_flags &= ~SPAT_CONST; |
1736 | } |
1737 | } |
1738 | while (*s == 'g' || *s == 'i' || *s == 'e' || *s == 'o') { |
1739 | if (*s == 'e') { |
1740 | s++; |
1741 | if ((spat->spat_repl[1].arg_type & A_MASK) == A_DOUBLE) |
1742 | spat->spat_repl[1].arg_type = A_SINGLE; |
de3bb511 |
1743 | spat->spat_repl = make_op( |
1744 | (spat->spat_repl[1].arg_type == A_SINGLE ? O_EVALONCE : O_EVAL), |
1745 | 2, |
a687059c |
1746 | spat->spat_repl, |
1747 | Nullarg, |
395c3793 |
1748 | Nullarg); |
a687059c |
1749 | spat->spat_flags &= ~SPAT_CONST; |
1750 | } |
378cc40b |
1751 | if (*s == 'g') { |
1752 | s++; |
d48672a2 |
1753 | spat->spat_flags |= SPAT_GLOBAL; |
378cc40b |
1754 | } |
1755 | if (*s == 'i') { |
1756 | s++; |
a687059c |
1757 | sawi = TRUE; |
378cc40b |
1758 | spat->spat_flags |= SPAT_FOLD; |
a687059c |
1759 | if (!(spat->spat_flags & SPAT_SCANFIRST)) { |
1760 | str_free(spat->spat_short); /* anchored opt doesn't do */ |
1761 | spat->spat_short = Nullstr; /* case insensitive match */ |
1762 | spat->spat_slen = 0; |
1763 | } |
1764 | } |
1765 | if (*s == 'o') { |
1766 | s++; |
1767 | spat->spat_flags |= SPAT_KEEP; |
378cc40b |
1768 | } |
1769 | } |
a687059c |
1770 | if (spat->spat_short && (spat->spat_flags & SPAT_SCANFIRST)) |
1771 | fbmcompile(spat->spat_short, spat->spat_flags & SPAT_FOLD); |
378cc40b |
1772 | if (!spat->spat_runtime) { |
395c3793 |
1773 | spat->spat_regexp = regcomp(str->str_ptr,str->str_ptr+len, |
fe14fcc3 |
1774 | spat->spat_flags & SPAT_FOLD); |
378cc40b |
1775 | hoistmust(spat); |
378cc40b |
1776 | } |
1777 | yylval.arg = make_match(O_SUBST,stab2arg(A_STAB,defstab),spat); |
395c3793 |
1778 | str_free(str); |
378cc40b |
1779 | return s; |
1780 | } |
1781 | |
1462b684 |
1782 | void |
378cc40b |
1783 | hoistmust(spat) |
1784 | register SPAT *spat; |
1785 | { |
d48672a2 |
1786 | if (!spat->spat_short && spat->spat_regexp->regstart && |
1787 | (!spat->spat_regexp->regmust || spat->spat_regexp->reganch & ROPT_ANCH) |
1788 | ) { |
d48672a2 |
1789 | if (!(spat->spat_regexp->reganch & ROPT_ANCH)) |
1790 | spat->spat_flags |= SPAT_SCANFIRST; |
1462b684 |
1791 | else if (spat->spat_flags & SPAT_FOLD) |
1792 | return; |
1793 | spat->spat_short = str_smake(spat->spat_regexp->regstart); |
d48672a2 |
1794 | } |
1795 | else if (spat->spat_regexp->regmust) {/* is there a better short-circuit? */ |
378cc40b |
1796 | if (spat->spat_short && |
a687059c |
1797 | str_eq(spat->spat_short,spat->spat_regexp->regmust)) |
1798 | { |
378cc40b |
1799 | if (spat->spat_flags & SPAT_SCANFIRST) { |
1800 | str_free(spat->spat_short); |
1801 | spat->spat_short = Nullstr; |
1802 | } |
1803 | else { |
1804 | str_free(spat->spat_regexp->regmust); |
1805 | spat->spat_regexp->regmust = Nullstr; |
1806 | return; |
1807 | } |
1808 | } |
1809 | if (!spat->spat_short || /* promote the better string */ |
1810 | ((spat->spat_flags & SPAT_SCANFIRST) && |
1811 | (spat->spat_short->str_cur < spat->spat_regexp->regmust->str_cur) )){ |
1812 | str_free(spat->spat_short); /* ok if null */ |
1813 | spat->spat_short = spat->spat_regexp->regmust; |
1814 | spat->spat_regexp->regmust = Nullstr; |
1815 | spat->spat_flags |= SPAT_SCANFIRST; |
1816 | } |
1817 | } |
1818 | } |
1819 | |
1820 | char * |
a687059c |
1821 | expand_charset(s,len,retlen) |
378cc40b |
1822 | register char *s; |
a687059c |
1823 | int len; |
1824 | int *retlen; |
378cc40b |
1825 | { |
e929a76b |
1826 | char t[520]; |
378cc40b |
1827 | register char *d = t; |
1828 | register int i; |
a687059c |
1829 | register char *send = s + len; |
378cc40b |
1830 | |
e929a76b |
1831 | while (s < send && d - t <= 256) { |
a687059c |
1832 | if (s[1] == '-' && s+2 < send) { |
fe14fcc3 |
1833 | for (i = (s[0] & 0377); i <= (s[2] & 0377); i++) |
378cc40b |
1834 | *d++ = i; |
1835 | s += 3; |
1836 | } |
1837 | else |
1838 | *d++ = *s++; |
1839 | } |
1840 | *d = '\0'; |
a687059c |
1841 | *retlen = d - t; |
1842 | return nsavestr(t,d-t); |
378cc40b |
1843 | } |
1844 | |
1845 | char * |
1846 | scantrans(s) |
1847 | register char *s; |
1848 | { |
1849 | ARG *arg = |
a687059c |
1850 | l(make_op(O_TRANS,2,stab2arg(A_STAB,defstab),Nullarg,Nullarg)); |
378cc40b |
1851 | register char *t; |
1852 | register char *r; |
395c3793 |
1853 | register short *tbl; |
378cc40b |
1854 | register int i; |
13281fa4 |
1855 | register int j; |
a687059c |
1856 | int tlen, rlen; |
395c3793 |
1857 | int squash; |
1858 | int delete; |
1859 | int complement; |
378cc40b |
1860 | |
395c3793 |
1861 | New(803,tbl,256,short); |
378cc40b |
1862 | arg[2].arg_type = A_NULL; |
395c3793 |
1863 | arg[2].arg_ptr.arg_cval = (char*) tbl; |
378cc40b |
1864 | s = scanstr(s); |
a687059c |
1865 | if (s >= bufend) { |
1866 | yyerror("Translation pattern not terminated"); |
1867 | yylval.arg = Nullarg; |
1868 | return s; |
1869 | } |
1870 | t = expand_charset(yylval.arg[1].arg_ptr.arg_str->str_ptr, |
1871 | yylval.arg[1].arg_ptr.arg_str->str_cur,&tlen); |
fe14fcc3 |
1872 | arg_free(yylval.arg); |
378cc40b |
1873 | s = scanstr(s-1); |
a687059c |
1874 | if (s >= bufend) { |
1875 | yyerror("Translation replacement not terminated"); |
1876 | yylval.arg = Nullarg; |
1877 | return s; |
1878 | } |
395c3793 |
1879 | complement = delete = squash = 0; |
1880 | while (*s == 'c' || *s == 'd' || *s == 's') { |
1881 | if (*s == 'c') |
1882 | complement = 1; |
1883 | else if (*s == 'd') |
1884 | delete = 2; |
1885 | else |
1886 | squash = 1; |
1887 | s++; |
1888 | } |
a687059c |
1889 | r = expand_charset(yylval.arg[1].arg_ptr.arg_str->str_ptr, |
1890 | yylval.arg[1].arg_ptr.arg_str->str_cur,&rlen); |
fe14fcc3 |
1891 | arg_free(yylval.arg); |
395c3793 |
1892 | arg[2].arg_len = delete|squash; |
378cc40b |
1893 | yylval.arg = arg; |
395c3793 |
1894 | if (!rlen && !delete) { |
a687059c |
1895 | Safefree(r); |
ffed7fef |
1896 | r = t; rlen = tlen; |
378cc40b |
1897 | } |
395c3793 |
1898 | if (complement) { |
1899 | Zero(tbl, 256, short); |
1900 | for (i = 0; i < tlen; i++) |
1901 | tbl[t[i] & 0377] = -1; |
fe14fcc3 |
1902 | for (i = 0, j = 0; i < 256; i++) { |
395c3793 |
1903 | if (!tbl[i]) { |
1904 | if (j >= rlen) { |
fe14fcc3 |
1905 | if (delete) |
395c3793 |
1906 | tbl[i] = -2; |
fe14fcc3 |
1907 | else |
1908 | tbl[i] = r[j-1]; |
395c3793 |
1909 | } |
fe14fcc3 |
1910 | else |
1911 | tbl[i] = r[j++]; |
395c3793 |
1912 | } |
1913 | } |
1914 | } |
1915 | else { |
1916 | for (i = 0; i < 256; i++) |
1917 | tbl[i] = -1; |
1918 | for (i = 0, j = 0; i < tlen; i++,j++) { |
1919 | if (j >= rlen) { |
1920 | if (delete) { |
1921 | if (tbl[t[i] & 0377] == -1) |
1922 | tbl[t[i] & 0377] = -2; |
1923 | continue; |
1924 | } |
1925 | --j; |
1926 | } |
1927 | if (tbl[t[i] & 0377] == -1) |
34de22dd |
1928 | tbl[t[i] & 0377] = r[j] & 0377; |
395c3793 |
1929 | } |
378cc40b |
1930 | } |
1931 | if (r != t) |
a687059c |
1932 | Safefree(r); |
1933 | Safefree(t); |
378cc40b |
1934 | return s; |
1935 | } |
1936 | |
1937 | char * |
1938 | scanstr(s) |
1939 | register char *s; |
1940 | { |
1941 | register char term; |
1942 | register char *d; |
1943 | register ARG *arg; |
a687059c |
1944 | register char *send; |
378cc40b |
1945 | register bool makesingle = FALSE; |
1946 | register STAB *stab; |
a687059c |
1947 | bool alwaysdollar = FALSE; |
1948 | bool hereis = FALSE; |
1949 | STR *herewas; |
e929a76b |
1950 | STR *str; |
fe14fcc3 |
1951 | char *leave = "\\$@nrtfbeacx0123456789[{]}lLuUE"; /* which backslash sequences to keep */ |
a687059c |
1952 | int len; |
378cc40b |
1953 | |
1954 | arg = op_new(1); |
1955 | yylval.arg = arg; |
1956 | arg->arg_type = O_ITEM; |
1957 | |
1958 | switch (*s) { |
1959 | default: /* a substitution replacement */ |
1960 | arg[1].arg_type = A_DOUBLE; |
1961 | makesingle = TRUE; /* maybe disable runtime scanning */ |
1962 | term = *s; |
1963 | if (term == '\'') |
1964 | leave = Nullch; |
1965 | goto snarf_it; |
1966 | case '0': |
1967 | { |
395c3793 |
1968 | unsigned long i; |
378cc40b |
1969 | int shift; |
1970 | |
1971 | arg[1].arg_type = A_SINGLE; |
1972 | if (s[1] == 'x') { |
1973 | shift = 4; |
1974 | s += 2; |
1975 | } |
1976 | else if (s[1] == '.') |
1977 | goto decimal; |
1978 | else |
1979 | shift = 3; |
1980 | i = 0; |
1981 | for (;;) { |
1982 | switch (*s) { |
1983 | default: |
1984 | goto out; |
de3bb511 |
1985 | case '_': |
1986 | s++; |
1987 | break; |
378cc40b |
1988 | case '8': case '9': |
1989 | if (shift != 4) |
a687059c |
1990 | yyerror("Illegal octal digit"); |
378cc40b |
1991 | /* FALL THROUGH */ |
1992 | case '0': case '1': case '2': case '3': case '4': |
1993 | case '5': case '6': case '7': |
1994 | i <<= shift; |
1995 | i += *s++ & 15; |
1996 | break; |
1997 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
1998 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
1999 | if (shift != 4) |
2000 | goto out; |
2001 | i <<= 4; |
2002 | i += (*s++ & 7) + 9; |
2003 | break; |
2004 | } |
2005 | } |
2006 | out: |
e929a76b |
2007 | str = Str_new(92,0); |
2008 | str_numset(str,(double)i); |
2009 | if (str->str_ptr) { |
2010 | Safefree(str->str_ptr); |
2011 | str->str_ptr = Nullch; |
2012 | str->str_len = str->str_cur = 0; |
2013 | } |
2014 | arg[1].arg_ptr.arg_str = str; |
378cc40b |
2015 | } |
2016 | break; |
2017 | case '1': case '2': case '3': case '4': case '5': |
2018 | case '6': case '7': case '8': case '9': case '.': |
2019 | decimal: |
2020 | arg[1].arg_type = A_SINGLE; |
2021 | d = tokenbuf; |
de3bb511 |
2022 | while (isDIGIT(*s) || *s == '_') { |
378cc40b |
2023 | if (*s == '_') |
2024 | s++; |
2025 | else |
2026 | *d++ = *s++; |
2027 | } |
a687059c |
2028 | if (*s == '.' && s[1] && index("0123456789eE ;",s[1])) { |
378cc40b |
2029 | *d++ = *s++; |
de3bb511 |
2030 | while (isDIGIT(*s) || *s == '_') { |
378cc40b |
2031 | if (*s == '_') |
2032 | s++; |
2033 | else |
2034 | *d++ = *s++; |
2035 | } |
2036 | } |
a687059c |
2037 | if (*s && index("eE",*s) && index("+-0123456789",s[1])) { |
378cc40b |
2038 | *d++ = *s++; |
2039 | if (*s == '+' || *s == '-') |
2040 | *d++ = *s++; |
de3bb511 |
2041 | while (isDIGIT(*s)) |
378cc40b |
2042 | *d++ = *s++; |
2043 | } |
2044 | *d = '\0'; |
e929a76b |
2045 | str = Str_new(92,0); |
2046 | str_numset(str,atof(tokenbuf)); |
2047 | if (str->str_ptr) { |
2048 | Safefree(str->str_ptr); |
2049 | str->str_ptr = Nullch; |
2050 | str->str_len = str->str_cur = 0; |
2051 | } |
2052 | arg[1].arg_ptr.arg_str = str; |
378cc40b |
2053 | break; |
378cc40b |
2054 | case '<': |
a687059c |
2055 | if (*++s == '<') { |
2056 | hereis = TRUE; |
2057 | d = tokenbuf; |
2058 | if (!rsfp) |
2059 | *d++ = '\n'; |
2060 | if (*++s && index("`'\"",*s)) { |
2061 | term = *s++; |
2062 | s = cpytill(d,s,bufend,term,&len); |
2063 | if (s < bufend) |
2064 | s++; |
2065 | d += len; |
2066 | } |
2067 | else { |
2068 | if (*s == '\\') |
2069 | s++, term = '\''; |
2070 | else |
2071 | term = '"'; |
de3bb511 |
2072 | while (isALNUM(*s)) |
a687059c |
2073 | *d++ = *s++; |
2074 | } /* assuming tokenbuf won't clobber */ |
2075 | *d++ = '\n'; |
2076 | *d = '\0'; |
2077 | len = d - tokenbuf; |
2078 | d = "\n"; |
2079 | if (rsfp || !(d=ninstr(s,bufend,d,d+1))) |
2080 | herewas = str_make(s,bufend-s); |
2081 | else |
2082 | s--, herewas = str_make(s,d-s); |
2083 | s += herewas->str_cur; |
2084 | if (term == '\'') |
2085 | goto do_single; |
2086 | if (term == '`') |
2087 | goto do_back; |
2088 | goto do_double; |
2089 | } |
378cc40b |
2090 | d = tokenbuf; |
a687059c |
2091 | s = cpytill(d,s,bufend,'>',&len); |
2092 | if (s < bufend) |
378cc40b |
2093 | s++; |
2094 | if (*d == '$') d++; |
de3bb511 |
2095 | while (*d && (isALNUM(*d) || *d == '\'')) |
a687059c |
2096 | d++; |
2097 | if (d - tokenbuf != len) { |
378cc40b |
2098 | d = tokenbuf; |
2099 | arg[1].arg_type = A_GLOB; |
a687059c |
2100 | d = nsavestr(d,len); |
378cc40b |
2101 | arg[1].arg_ptr.arg_stab = stab = genstab(); |
a687059c |
2102 | stab_io(stab) = stio_new(); |
2103 | stab_val(stab) = str_make(d,len); |
a687059c |
2104 | Safefree(d); |
2105 | set_csh(); |
378cc40b |
2106 | } |
2107 | else { |
2108 | d = tokenbuf; |
a687059c |
2109 | if (!len) |
2110 | (void)strcpy(d,"ARGV"); |
378cc40b |
2111 | if (*d == '$') { |
2112 | arg[1].arg_type = A_INDREAD; |
2113 | arg[1].arg_ptr.arg_stab = stabent(d+1,TRUE); |
2114 | } |
2115 | else { |
2116 | arg[1].arg_type = A_READ; |
378cc40b |
2117 | arg[1].arg_ptr.arg_stab = stabent(d,TRUE); |
a687059c |
2118 | if (!stab_io(arg[1].arg_ptr.arg_stab)) |
2119 | stab_io(arg[1].arg_ptr.arg_stab) = stio_new(); |
378cc40b |
2120 | if (strEQ(d,"ARGV")) { |
a687059c |
2121 | (void)aadd(arg[1].arg_ptr.arg_stab); |
2122 | stab_io(arg[1].arg_ptr.arg_stab)->flags |= |
378cc40b |
2123 | IOF_ARGV|IOF_START; |
2124 | } |
2125 | } |
2126 | } |
2127 | break; |
a687059c |
2128 | |
2129 | case 'q': |
2130 | s++; |
2131 | if (*s == 'q') { |
2132 | s++; |
2133 | goto do_double; |
2134 | } |
fe14fcc3 |
2135 | if (*s == 'x') { |
2136 | s++; |
2137 | goto do_back; |
2138 | } |
a687059c |
2139 | /* FALL THROUGH */ |
2140 | case '\'': |
2141 | do_single: |
2142 | term = *s; |
2143 | arg[1].arg_type = A_SINGLE; |
2144 | leave = Nullch; |
2145 | goto snarf_it; |
2146 | |
378cc40b |
2147 | case '"': |
a687059c |
2148 | do_double: |
2149 | term = *s; |
378cc40b |
2150 | arg[1].arg_type = A_DOUBLE; |
2151 | makesingle = TRUE; /* maybe disable runtime scanning */ |
a687059c |
2152 | alwaysdollar = TRUE; /* treat $) and $| as variables */ |
378cc40b |
2153 | goto snarf_it; |
2154 | case '`': |
a687059c |
2155 | do_back: |
378cc40b |
2156 | term = *s; |
a687059c |
2157 | arg[1].arg_type = A_BACKTICK; |
2158 | set_csh(); |
2159 | alwaysdollar = TRUE; /* treat $) and $| as variables */ |
378cc40b |
2160 | snarf_it: |
2161 | { |
2162 | STR *tmpstr; |
378cc40b |
2163 | char *tmps; |
2164 | |
d48672a2 |
2165 | CLINE; |
e929a76b |
2166 | multi_start = curcmd->c_line; |
a687059c |
2167 | if (hereis) |
2168 | multi_open = multi_close = '<'; |
2169 | else { |
2170 | multi_open = term; |
395c3793 |
2171 | if (term && (tmps = index("([{< )]}> )]}>",term))) |
a687059c |
2172 | term = tmps[5]; |
2173 | multi_close = term; |
2174 | } |
9f68db38 |
2175 | tmpstr = Str_new(87,80); |
a687059c |
2176 | if (hereis) { |
2177 | term = *tokenbuf; |
2178 | if (!rsfp) { |
2179 | d = s; |
2180 | while (s < bufend && |
2181 | (*s != term || bcmp(s,tokenbuf,len) != 0) ) { |
2182 | if (*s++ == '\n') |
e929a76b |
2183 | curcmd->c_line++; |
a687059c |
2184 | } |
2185 | if (s >= bufend) { |
e929a76b |
2186 | curcmd->c_line = multi_start; |
a687059c |
2187 | fatal("EOF in string"); |
2188 | } |
2189 | str_nset(tmpstr,d+1,s-d); |
2190 | s += len - 1; |
2191 | str_ncat(herewas,s,bufend-s); |
2192 | str_replace(linestr,herewas); |
2193 | oldoldbufptr = oldbufptr = bufptr = s = str_get(linestr); |
2194 | bufend = linestr->str_ptr + linestr->str_cur; |
2195 | hereis = FALSE; |
2196 | } |
e929a76b |
2197 | else |
2198 | str_nset(tmpstr,"",0); /* avoid "uninitialized" warning */ |
a687059c |
2199 | } |
2200 | else |
2201 | s = str_append_till(tmpstr,s+1,bufend,term,leave); |
2202 | while (s >= bufend) { /* multiple line string? */ |
2203 | if (!rsfp || |
2204 | !(oldoldbufptr = oldbufptr = s = str_gets(linestr, rsfp, 0))) { |
e929a76b |
2205 | curcmd->c_line = multi_start; |
378cc40b |
2206 | fatal("EOF in string"); |
2207 | } |
e929a76b |
2208 | curcmd->c_line++; |
a687059c |
2209 | if (perldb) { |
2210 | STR *str = Str_new(88,0); |
2211 | |
2212 | str_sset(str,linestr); |
395c3793 |
2213 | astore(stab_xarray(curcmd->c_filestab), |
2214 | (int)curcmd->c_line,str); |
a687059c |
2215 | } |
2216 | bufend = linestr->str_ptr + linestr->str_cur; |
2217 | if (hereis) { |
2218 | if (*s == term && bcmp(s,tokenbuf,len) == 0) { |
2219 | s = bufend - 1; |
2220 | *s = ' '; |
2221 | str_scat(linestr,herewas); |
2222 | bufend = linestr->str_ptr + linestr->str_cur; |
2223 | } |
2224 | else { |
2225 | s = bufend; |
2226 | str_scat(tmpstr,linestr); |
2227 | } |
2228 | } |
2229 | else |
2230 | s = str_append_till(tmpstr,s,bufend,term,leave); |
378cc40b |
2231 | } |
e929a76b |
2232 | multi_end = curcmd->c_line; |
378cc40b |
2233 | s++; |
a687059c |
2234 | if (tmpstr->str_cur + 5 < tmpstr->str_len) { |
2235 | tmpstr->str_len = tmpstr->str_cur + 1; |
2236 | Renew(tmpstr->str_ptr, tmpstr->str_len, char); |
2237 | } |
2238 | if ((arg[1].arg_type & A_MASK) == A_SINGLE) { |
378cc40b |
2239 | arg[1].arg_ptr.arg_str = tmpstr; |
2240 | break; |
2241 | } |
2242 | tmps = s; |
2243 | s = tmpstr->str_ptr; |
a687059c |
2244 | send = s + tmpstr->str_cur; |
2245 | while (s < send) { /* see if we can make SINGLE */ |
de3bb511 |
2246 | if (*s == '\\' && s[1] && isDIGIT(s[1]) && !isDIGIT(s[2]) && |
e929a76b |
2247 | !alwaysdollar && s[1] != '0') |
378cc40b |
2248 | *s = '$'; /* grandfather \digit in subst */ |
a687059c |
2249 | if ((*s == '$' || *s == '@') && s+1 < send && |
2250 | (alwaysdollar || (s[1] != ')' && s[1] != '|'))) { |
378cc40b |
2251 | makesingle = FALSE; /* force interpretation */ |
2252 | } |
a687059c |
2253 | else if (*s == '\\' && s+1 < send) { |
fe14fcc3 |
2254 | if (index("lLuUE",s[1])) |
2255 | makesingle = FALSE; |
378cc40b |
2256 | s++; |
2257 | } |
2258 | s++; |
2259 | } |
2260 | s = d = tmpstr->str_ptr; /* assuming shrinkage only */ |
a687059c |
2261 | while (s < send) { |
2262 | if ((*s == '$' && s+1 < send && |
2263 | (alwaysdollar || /*(*/ (s[1] != ')' && s[1] != '|')) ) || |
2264 | (*s == '@' && s+1 < send) ) { |
de3bb511 |
2265 | if (s[1] == '#' && (isALPHA(s[2]) || s[2] == '_')) |
2266 | *d++ = *s++; |
fe14fcc3 |
2267 | len = scanident(s,send,tokenbuf) - s; |
a687059c |
2268 | if (*s == '$' || strEQ(tokenbuf,"ARGV") |
2269 | || strEQ(tokenbuf,"ENV") |
2270 | || strEQ(tokenbuf,"SIG") |
2271 | || strEQ(tokenbuf,"INC") ) |
2272 | (void)stabent(tokenbuf,TRUE); /* make sure it exists */ |
378cc40b |
2273 | while (len--) |
2274 | *d++ = *s++; |
2275 | continue; |
2276 | } |
a687059c |
2277 | else if (*s == '\\' && s+1 < send) { |
378cc40b |
2278 | s++; |
2279 | switch (*s) { |
2280 | default: |
a687059c |
2281 | if (!makesingle && (!leave || (*s && index(leave,*s)))) |
378cc40b |
2282 | *d++ = '\\'; |
2283 | *d++ = *s++; |
2284 | continue; |
2285 | case '0': case '1': case '2': case '3': |
2286 | case '4': case '5': case '6': case '7': |
fe14fcc3 |
2287 | *d++ = scanoct(s, 3, &len); |
2288 | s += len; |
2289 | continue; |
2290 | case 'x': |
2291 | *d++ = scanhex(++s, 2, &len); |
2292 | s += len; |
2293 | continue; |
2294 | case 'c': |
2295 | s++; |
2296 | *d = *s++; |
de3bb511 |
2297 | if (isLOWER(*d)) |
fe14fcc3 |
2298 | *d = toupper(*d); |
2299 | *d++ ^= 64; |
378cc40b |
2300 | continue; |
2301 | case 'b': |
2302 | *d++ = '\b'; |
2303 | break; |
2304 | case 'n': |
2305 | *d++ = '\n'; |
2306 | break; |
2307 | case 'r': |
2308 | *d++ = '\r'; |
2309 | break; |
2310 | case 'f': |
2311 | *d++ = '\f'; |
2312 | break; |
2313 | case 't': |
2314 | *d++ = '\t'; |
2315 | break; |
fe14fcc3 |
2316 | case 'e': |
2317 | *d++ = '\033'; |
2318 | break; |
2319 | case 'a': |
2320 | *d++ = '\007'; |
2321 | break; |
378cc40b |
2322 | } |
2323 | s++; |
2324 | continue; |
2325 | } |
2326 | *d++ = *s++; |
2327 | } |
2328 | *d = '\0'; |
2329 | |
a687059c |
2330 | if ((arg[1].arg_type & A_MASK) == A_DOUBLE && makesingle) |
2331 | arg[1].arg_type = A_SINGLE; /* now we can optimize on it */ |
2332 | |
a687059c |
2333 | tmpstr->str_cur = d - tmpstr->str_ptr; |
378cc40b |
2334 | arg[1].arg_ptr.arg_str = tmpstr; |
2335 | s = tmps; |
2336 | break; |
2337 | } |
2338 | } |
a687059c |
2339 | if (hereis) |
2340 | str_free(herewas); |
378cc40b |
2341 | return s; |
2342 | } |
2343 | |
2344 | FCMD * |
2345 | load_format() |
2346 | { |
2347 | FCMD froot; |
2348 | FCMD *flinebeg; |
0f85fab0 |
2349 | char *eol; |
378cc40b |
2350 | register FCMD *fprev = &froot; |
2351 | register FCMD *fcmd; |
2352 | register char *s; |
2353 | register char *t; |
a687059c |
2354 | register STR *str; |
378cc40b |
2355 | bool noblank; |
a687059c |
2356 | bool repeater; |
378cc40b |
2357 | |
a687059c |
2358 | Zero(&froot, 1, FCMD); |
0f85fab0 |
2359 | s = bufptr; |
27e2fb84 |
2360 | while (s < bufend || (rsfp && (s = str_gets(linestr,rsfp, 0)) != Nullch)) { |
e929a76b |
2361 | curcmd->c_line++; |
0f85fab0 |
2362 | if (in_eval && !rsfp) { |
2363 | eol = index(s,'\n'); |
2364 | if (!eol++) |
2365 | eol = bufend; |
2366 | } |
2367 | else |
2368 | eol = bufend = linestr->str_ptr + linestr->str_cur; |
395c3793 |
2369 | if (perldb) { |
2370 | STR *tmpstr = Str_new(89,0); |
2371 | |
2372 | str_nset(tmpstr, s, eol-s); |
2373 | astore(stab_xarray(curcmd->c_filestab), (int)curcmd->c_line,tmpstr); |
2374 | } |
27e2fb84 |
2375 | if (*s == '.') { |
de3bb511 |
2376 | /*SUPPRESS 530*/ |
27e2fb84 |
2377 | for (t = s+1; *t == ' ' || *t == '\t'; t++) ; |
2378 | if (*t == '\n') { |
2379 | bufptr = s; |
2380 | return froot.f_next; |
2381 | } |
378cc40b |
2382 | } |
0f85fab0 |
2383 | if (*s == '#') { |
2384 | s = eol; |
378cc40b |
2385 | continue; |
0f85fab0 |
2386 | } |
378cc40b |
2387 | flinebeg = Nullfcmd; |
2388 | noblank = FALSE; |
a687059c |
2389 | repeater = FALSE; |
0f85fab0 |
2390 | while (s < eol) { |
a687059c |
2391 | Newz(804,fcmd,1,FCMD); |
378cc40b |
2392 | fprev->f_next = fcmd; |
2393 | fprev = fcmd; |
0f85fab0 |
2394 | for (t=s; t < eol && *t != '@' && *t != '^'; t++) { |
378cc40b |
2395 | if (*t == '~') { |
2396 | noblank = TRUE; |
2397 | *t = ' '; |
a687059c |
2398 | if (t[1] == '~') { |
2399 | repeater = TRUE; |
2400 | t[1] = ' '; |
2401 | } |
378cc40b |
2402 | } |
2403 | } |
a687059c |
2404 | fcmd->f_pre = nsavestr(s, t-s); |
2405 | fcmd->f_presize = t-s; |
378cc40b |
2406 | s = t; |
0f85fab0 |
2407 | if (s >= eol) { |
378cc40b |
2408 | if (noblank) |
2409 | fcmd->f_flags |= FC_NOBLANK; |
a687059c |
2410 | if (repeater) |
2411 | fcmd->f_flags |= FC_REPEAT; |
378cc40b |
2412 | break; |
2413 | } |
2414 | if (!flinebeg) |
2415 | flinebeg = fcmd; /* start values here */ |
2416 | if (*s++ == '^') |
2417 | fcmd->f_flags |= FC_CHOP; /* for doing text filling */ |
2418 | switch (*s) { |
2419 | case '*': |
2420 | fcmd->f_type = F_LINES; |
2421 | *s = '\0'; |
2422 | break; |
2423 | case '<': |
2424 | fcmd->f_type = F_LEFT; |
2425 | while (*s == '<') |
2426 | s++; |
2427 | break; |
2428 | case '>': |
2429 | fcmd->f_type = F_RIGHT; |
2430 | while (*s == '>') |
2431 | s++; |
2432 | break; |
2433 | case '|': |
2434 | fcmd->f_type = F_CENTER; |
2435 | while (*s == '|') |
2436 | s++; |
2437 | break; |
395c3793 |
2438 | case '#': |
2439 | case '.': |
2440 | /* Catch the special case @... and handle it as a string |
2441 | field. */ |
2442 | if (*s == '.' && s[1] == '.') { |
2443 | goto default_format; |
2444 | } |
2445 | fcmd->f_type = F_DECIMAL; |
2446 | { |
2447 | char *p; |
2448 | |
2449 | /* Read a format in the form @####.####, where either group |
2450 | of ### may be empty, or the final .### may be missing. */ |
2451 | while (*s == '#') |
2452 | s++; |
2453 | if (*s == '.') { |
2454 | s++; |
2455 | p = s; |
2456 | while (*s == '#') |
2457 | s++; |
2458 | fcmd->f_decimals = s-p; |
2459 | fcmd->f_flags |= FC_DP; |
2460 | } else { |
2461 | fcmd->f_decimals = 0; |
2462 | } |
2463 | } |
2464 | break; |
378cc40b |
2465 | default: |
395c3793 |
2466 | default_format: |
378cc40b |
2467 | fcmd->f_type = F_LEFT; |
2468 | break; |
2469 | } |
2470 | if (fcmd->f_flags & FC_CHOP && *s == '.') { |
2471 | fcmd->f_flags |= FC_MORE; |
2472 | while (*s == '.') |
2473 | s++; |
2474 | } |
2475 | fcmd->f_size = s-t; |
2476 | } |
2477 | if (flinebeg) { |
2478 | again: |
27e2fb84 |
2479 | if (s >= bufend && |
2480 | (!rsfp || (s = str_gets(linestr, rsfp, 0)) == Nullch) ) |
378cc40b |
2481 | goto badform; |
e929a76b |
2482 | curcmd->c_line++; |
0f85fab0 |
2483 | if (in_eval && !rsfp) { |
2484 | eol = index(s,'\n'); |
2485 | if (!eol++) |
2486 | eol = bufend; |
2487 | } |
2488 | else |
2489 | eol = bufend = linestr->str_ptr + linestr->str_cur; |
395c3793 |
2490 | if (perldb) { |
2491 | STR *tmpstr = Str_new(90,0); |
2492 | |
2493 | str_nset(tmpstr, s, eol-s); |
2494 | astore(stab_xarray(curcmd->c_filestab), |
2495 | (int)curcmd->c_line,tmpstr); |
2496 | } |
0f85fab0 |
2497 | if (strnEQ(s,".\n",2)) { |
a687059c |
2498 | bufptr = s; |
378cc40b |
2499 | yyerror("Missing values line"); |
2500 | return froot.f_next; |
2501 | } |
0f85fab0 |
2502 | if (*s == '#') { |
2503 | s = eol; |
378cc40b |
2504 | goto again; |
0f85fab0 |
2505 | } |
2506 | str = flinebeg->f_unparsed = Str_new(91,eol - s); |
a687059c |
2507 | str->str_u.str_hash = curstash; |
2508 | str_nset(str,"(",1); |
e929a76b |
2509 | flinebeg->f_line = curcmd->c_line; |
0f85fab0 |
2510 | eol[-1] = '\0'; |
2511 | if (!flinebeg->f_next->f_type || index(s, ',')) { |
2512 | eol[-1] = '\n'; |
2513 | str_ncat(str, s, eol - s - 1); |
a687059c |
2514 | str_ncat(str,",$$);",5); |
0f85fab0 |
2515 | s = eol; |
a687059c |
2516 | } |
2517 | else { |
0f85fab0 |
2518 | eol[-1] = '\n'; |
de3bb511 |
2519 | while (s < eol && isSPACE(*s)) |
a687059c |
2520 | s++; |
2521 | t = s; |
0f85fab0 |
2522 | while (s < eol) { |
a687059c |
2523 | switch (*s) { |
2524 | case ' ': case '\t': case '\n': case ';': |
2525 | str_ncat(str, t, s - t); |
2526 | str_ncat(str, "," ,1); |
de3bb511 |
2527 | while (s < eol && (isSPACE(*s) || *s == ';')) |
a687059c |
2528 | s++; |
2529 | t = s; |
2530 | break; |
2531 | case '$': |
2532 | str_ncat(str, t, s - t); |
2533 | t = s; |
fe14fcc3 |
2534 | s = scanident(s,eol,tokenbuf); |
a687059c |
2535 | str_ncat(str, t, s - t); |
2536 | t = s; |
0f85fab0 |
2537 | if (s < eol && *s && index("$'\"",*s)) |
a687059c |
2538 | str_ncat(str, ",", 1); |
2539 | break; |
2540 | case '"': case '\'': |
2541 | str_ncat(str, t, s - t); |
2542 | t = s; |
2543 | s++; |
0f85fab0 |
2544 | while (s < eol && (*s != *t || s[-1] == '\\')) |
a687059c |
2545 | s++; |
0f85fab0 |
2546 | if (s < eol) |
a687059c |
2547 | s++; |
2548 | str_ncat(str, t, s - t); |
2549 | t = s; |
0f85fab0 |
2550 | if (s < eol && *s && index("$'\"",*s)) |
a687059c |
2551 | str_ncat(str, ",", 1); |
2552 | break; |
2553 | default: |
2554 | yyerror("Please use commas to separate fields"); |
378cc40b |
2555 | } |
378cc40b |
2556 | } |
a687059c |
2557 | str_ncat(str,"$$);",4); |
378cc40b |
2558 | } |
378cc40b |
2559 | } |
2560 | } |
2561 | badform: |
2562 | bufptr = str_get(linestr); |
2563 | yyerror("Format not terminated"); |
2564 | return froot.f_next; |
2565 | } |
a687059c |
2566 | |
2567 | set_csh() |
2568 | { |
ae986130 |
2569 | #ifdef CSH |
2570 | if (!cshlen) |
2571 | cshlen = strlen(cshname); |
2572 | #endif |
a687059c |
2573 | } |