Commit | Line | Data |
663a0e37 |
1 | /* $Header: toke.c,v 3.0.1.4 89/12/21 20:26:56 lwall Locked $ |
a687059c |
2 | * |
3 | * Copyright (c) 1989, Larry Wall |
4 | * |
5 | * You may distribute under the terms of the GNU General Public License |
6 | * as specified in the README file that comes with the perl 3.0 kit. |
378cc40b |
7 | * |
8 | * $Log: toke.c,v $ |
663a0e37 |
9 | * Revision 3.0.1.4 89/12/21 20:26:56 lwall |
10 | * patch7: -d switch incompatible with -p or -n |
11 | * patch7: " ''$foo'' " didn't parse right |
12 | * patch7: grandfathered m'pat' and s'pat'repl' to not be package qualifiers |
13 | * |
ffed7fef |
14 | * Revision 3.0.1.3 89/11/17 15:43:15 lwall |
15 | * patch5: IBM PC/RT compiler can't deal with UNI() and LOP() macros |
16 | * patch5: } misadjusted expection of subsequent term or operator |
17 | * patch5: y/abcde// didn't work |
18 | * |
ae986130 |
19 | * Revision 3.0.1.2 89/11/11 05:04:42 lwall |
20 | * patch2: fixed a CLINE macro conflict |
21 | * |
03a14243 |
22 | * Revision 3.0.1.1 89/10/26 23:26:21 lwall |
23 | * patch1: disambiguated word after "sort" better |
24 | * |
a687059c |
25 | * Revision 3.0 89/10/18 15:32:33 lwall |
26 | * 3.0 baseline |
378cc40b |
27 | * |
28 | */ |
29 | |
30 | #include "EXTERN.h" |
31 | #include "perl.h" |
32 | #include "perly.h" |
33 | |
a687059c |
34 | char *reparse; /* if non-null, scanreg found ${foo[$bar]} */ |
35 | |
ae986130 |
36 | #ifdef CLINE |
37 | #undef CLINE |
38 | #endif |
378cc40b |
39 | #define CLINE (cmdline = (line < cmdline ? line : cmdline)) |
40 | |
a687059c |
41 | #define META(c) ((c) | 128) |
42 | |
378cc40b |
43 | #define RETURN(retval) return (bufptr = s,(int)retval) |
44 | #define OPERATOR(retval) return (expectterm = TRUE,bufptr = s,(int)retval) |
45 | #define TERM(retval) return (CLINE, expectterm = FALSE,bufptr = s,(int)retval) |
46 | #define LOOPX(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)LOOPEX) |
378cc40b |
47 | #define FTST(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)FILETEST) |
48 | #define FUN0(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC0) |
49 | #define FUN1(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC1) |
50 | #define FUN2(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC2) |
51 | #define FUN3(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC3) |
a687059c |
52 | #define FL(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FLIST) |
53 | #define FL2(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FLIST2) |
54 | #define HFUN(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)HSHFUN) |
55 | #define HFUN3(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)HSHFUN3) |
56 | #define LFUN(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)LVALFUN) |
57 | #define LFUN4(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)LFUNC4) |
58 | #define AOP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)ADDOP) |
59 | #define MOP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)MULOP) |
60 | #define EOP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)EQOP) |
61 | #define ROP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)RELOP) |
62 | #define FOP(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP) |
63 | #define FOP2(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP2) |
64 | #define FOP3(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP3) |
65 | #define FOP4(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP4) |
66 | #define FOP22(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP22) |
67 | #define FOP25(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP25) |
68 | |
69 | /* This bit of chicanery makes a unary function followed by |
70 | * a parenthesis into a function with one argument, highest precedence. |
71 | */ |
72 | #define UNI(f) return(yylval.ival = f,expectterm = TRUE,bufptr = s, \ |
73 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) ) |
74 | |
75 | /* This does similarly for list operators, merely by pretending that the |
76 | * paren came before the listop rather than after. |
77 | */ |
78 | #define LOP(f) return(*s == '(' || (s = skipspace(s), *s == '(') ? \ |
79 | (*s = META('('), bufptr = oldbufptr, '(') : \ |
80 | (yylval.ival=f,expectterm = TRUE,bufptr = s,(int)LISTOP)) |
81 | |
82 | char * |
83 | skipspace(s) |
84 | register char *s; |
85 | { |
86 | while (s < bufend && isascii(*s) && isspace(*s)) |
87 | s++; |
88 | return s; |
89 | } |
378cc40b |
90 | |
ffed7fef |
91 | #ifdef CRIPPLED_CC |
92 | |
93 | #undef UNI |
94 | #undef LOP |
95 | #define UNI(f) return uni(f,s) |
96 | #define LOP(f) return lop(f,s) |
97 | |
98 | int |
99 | uni(f,s) |
100 | int f; |
101 | char *s; |
102 | { |
103 | yylval.ival = f; |
104 | expectterm = TRUE; |
105 | bufptr = s; |
106 | if (*s == '(') |
107 | return FUNC1; |
108 | s = skipspace(s); |
109 | if (*s == '(') |
110 | return FUNC1; |
111 | else |
112 | return UNIOP; |
113 | } |
114 | |
115 | int |
116 | lop(f,s) |
117 | int f; |
118 | char *s; |
119 | { |
120 | if (*s != '(') |
121 | s = skipspace(s); |
122 | if (*s == '(') { |
123 | *s = META('('); |
124 | bufptr = oldbufptr; |
125 | return '('; |
126 | } |
127 | else { |
128 | yylval.ival=f; |
129 | expectterm = TRUE; |
130 | bufptr = s; |
131 | return LISTOP; |
132 | } |
133 | } |
134 | |
135 | #endif /* CRIPPLED_CC */ |
136 | |
378cc40b |
137 | yylex() |
138 | { |
139 | register char *s = bufptr; |
140 | register char *d; |
141 | register int tmp; |
142 | static bool in_format = FALSE; |
143 | static bool firstline = TRUE; |
a687059c |
144 | extern int yychar; /* last token */ |
145 | |
146 | oldoldbufptr = oldbufptr; |
147 | oldbufptr = s; |
378cc40b |
148 | |
149 | retry: |
150 | #ifdef YYDEBUG |
ae986130 |
151 | if (debug & 1) |
378cc40b |
152 | if (index(s,'\n')) |
153 | fprintf(stderr,"Tokener at %s",s); |
154 | else |
155 | fprintf(stderr,"Tokener at %s\n",s); |
156 | #endif |
157 | switch (*s) { |
158 | default: |
a687059c |
159 | if ((*s & 127) == '(') |
160 | *s++ = '('; |
161 | else |
162 | warn("Unrecognized character \\%03o ignored", *s++); |
378cc40b |
163 | goto retry; |
164 | case 0: |
378cc40b |
165 | if (!rsfp) |
166 | RETURN(0); |
a687059c |
167 | if (s++ < bufend) |
168 | goto retry; /* ignore stray nulls */ |
169 | if (firstline) { |
170 | firstline = FALSE; |
171 | if (minus_n || minus_p || perldb) { |
172 | str_set(linestr,""); |
173 | if (perldb) |
174 | str_cat(linestr,"do 'perldb.pl'; print $@;"); |
175 | if (minus_n || minus_p) { |
176 | str_cat(linestr,"line: while (<>) {"); |
177 | if (minus_a) |
178 | str_cat(linestr,"@F=split(' ');"); |
179 | } |
180 | oldoldbufptr = oldbufptr = s = str_get(linestr); |
181 | bufend = linestr->str_ptr + linestr->str_cur; |
182 | goto retry; |
183 | } |
184 | } |
378cc40b |
185 | if (in_format) { |
a687059c |
186 | yylval.formval = load_format(); |
378cc40b |
187 | in_format = FALSE; |
a687059c |
188 | oldoldbufptr = oldbufptr = s = str_get(linestr) + 1; |
189 | bufend = linestr->str_ptr + linestr->str_cur; |
378cc40b |
190 | TERM(FORMLIST); |
191 | } |
192 | line++; |
a687059c |
193 | if ((s = str_gets(linestr, rsfp, 0)) == Nullch) { |
378cc40b |
194 | if (preprocess) |
a687059c |
195 | (void)mypclose(rsfp); |
378cc40b |
196 | else if (rsfp != stdin) |
a687059c |
197 | (void)fclose(rsfp); |
378cc40b |
198 | rsfp = Nullfp; |
199 | if (minus_n || minus_p) { |
200 | str_set(linestr,minus_p ? "}continue{print;" : ""); |
201 | str_cat(linestr,"}"); |
a687059c |
202 | oldoldbufptr = oldbufptr = s = str_get(linestr); |
203 | bufend = linestr->str_ptr + linestr->str_cur; |
663a0e37 |
204 | minus_n = minus_p = 0; |
378cc40b |
205 | goto retry; |
206 | } |
a687059c |
207 | oldoldbufptr = oldbufptr = s = str_get(linestr); |
208 | str_set(linestr,""); |
378cc40b |
209 | RETURN(0); |
210 | } |
a687059c |
211 | oldoldbufptr = oldbufptr = bufptr = s; |
212 | if (perldb) { |
213 | STR *str = Str_new(85,0); |
214 | |
215 | str_sset(str,linestr); |
216 | astore(lineary,(int)line,str); |
217 | } |
378cc40b |
218 | #ifdef DEBUG |
a687059c |
219 | if (firstline) { |
378cc40b |
220 | char *showinput(); |
221 | s = showinput(); |
222 | } |
223 | #endif |
a687059c |
224 | bufend = linestr->str_ptr + linestr->str_cur; |
ae986130 |
225 | if (firstline) { |
226 | while (s < bufend && isspace(*s)) |
227 | s++; |
228 | if (*s == ':') /* for csh's that have to exec sh scripts */ |
229 | s++; |
230 | firstline = FALSE; |
231 | } |
378cc40b |
232 | goto retry; |
233 | case ' ': case '\t': case '\f': |
234 | s++; |
235 | goto retry; |
236 | case '\n': |
237 | case '#': |
238 | if (preprocess && s == str_get(linestr) && |
239 | s[1] == ' ' && isdigit(s[2])) { |
240 | line = atoi(s+2)-1; |
241 | for (s += 2; isdigit(*s); s++) ; |
a687059c |
242 | d = bufend; |
243 | while (s < d && isspace(*s)) s++; |
378cc40b |
244 | if (filename) |
a687059c |
245 | Safefree(filename); |
378cc40b |
246 | s[strlen(s)-1] = '\0'; /* wipe out newline */ |
247 | if (*s == '"') { |
248 | s++; |
249 | s[strlen(s)-1] = '\0'; /* wipe out trailing quote */ |
250 | } |
251 | if (*s) |
252 | filename = savestr(s); |
253 | else |
254 | filename = savestr(origfilename); |
a687059c |
255 | oldoldbufptr = oldbufptr = s = str_get(linestr); |
378cc40b |
256 | } |
a687059c |
257 | if (in_eval && !rsfp) { |
258 | d = bufend; |
259 | while (s < d && *s != '\n') |
378cc40b |
260 | s++; |
a687059c |
261 | if (s < d) { |
378cc40b |
262 | s++; |
a687059c |
263 | line++; |
264 | } |
378cc40b |
265 | } |
a687059c |
266 | else { |
378cc40b |
267 | *s = '\0'; |
a687059c |
268 | bufend = s; |
269 | } |
378cc40b |
270 | goto retry; |
271 | case '-': |
272 | if (s[1] && isalpha(s[1]) && !isalpha(s[2])) { |
273 | s++; |
274 | switch (*s++) { |
275 | case 'r': FTST(O_FTEREAD); |
276 | case 'w': FTST(O_FTEWRITE); |
277 | case 'x': FTST(O_FTEEXEC); |
278 | case 'o': FTST(O_FTEOWNED); |
279 | case 'R': FTST(O_FTRREAD); |
280 | case 'W': FTST(O_FTRWRITE); |
281 | case 'X': FTST(O_FTREXEC); |
282 | case 'O': FTST(O_FTROWNED); |
283 | case 'e': FTST(O_FTIS); |
284 | case 'z': FTST(O_FTZERO); |
285 | case 's': FTST(O_FTSIZE); |
286 | case 'f': FTST(O_FTFILE); |
287 | case 'd': FTST(O_FTDIR); |
288 | case 'l': FTST(O_FTLINK); |
289 | case 'p': FTST(O_FTPIPE); |
290 | case 'S': FTST(O_FTSOCK); |
291 | case 'u': FTST(O_FTSUID); |
292 | case 'g': FTST(O_FTSGID); |
293 | case 'k': FTST(O_FTSVTX); |
294 | case 'b': FTST(O_FTBLK); |
295 | case 'c': FTST(O_FTCHR); |
296 | case 't': FTST(O_FTTTY); |
297 | case 'T': FTST(O_FTTEXT); |
298 | case 'B': FTST(O_FTBINARY); |
299 | default: |
300 | s -= 2; |
301 | break; |
302 | } |
303 | } |
a687059c |
304 | tmp = *s++; |
305 | if (*s == tmp) { |
306 | s++; |
307 | RETURN(DEC); |
308 | } |
309 | if (expectterm) |
310 | OPERATOR('-'); |
311 | else |
312 | AOP(O_SUBTRACT); |
378cc40b |
313 | case '+': |
a687059c |
314 | tmp = *s++; |
315 | if (*s == tmp) { |
378cc40b |
316 | s++; |
a687059c |
317 | RETURN(INC); |
378cc40b |
318 | } |
a687059c |
319 | if (expectterm) |
320 | OPERATOR('+'); |
321 | else |
322 | AOP(O_ADD); |
323 | |
378cc40b |
324 | case '*': |
a687059c |
325 | if (expectterm) { |
326 | s = scanreg(s,bufend,tokenbuf); |
327 | yylval.stabval = stabent(tokenbuf,TRUE); |
328 | TERM(STAR); |
329 | } |
330 | tmp = *s++; |
331 | if (*s == tmp) { |
332 | s++; |
333 | OPERATOR(POW); |
334 | } |
335 | MOP(O_MULTIPLY); |
378cc40b |
336 | case '%': |
a687059c |
337 | if (expectterm) { |
338 | s = scanreg(s,bufend,tokenbuf); |
339 | yylval.stabval = stabent(tokenbuf,TRUE); |
340 | TERM(HSH); |
341 | } |
342 | s++; |
343 | MOP(O_MODULO); |
344 | |
378cc40b |
345 | case '^': |
346 | case '~': |
347 | case '(': |
348 | case ',': |
349 | case ':': |
350 | case '[': |
351 | tmp = *s++; |
352 | OPERATOR(tmp); |
353 | case '{': |
354 | tmp = *s++; |
355 | if (isspace(*s) || *s == '#') |
356 | cmdline = NOLINE; /* invalidate current command line number */ |
357 | OPERATOR(tmp); |
358 | case ';': |
359 | if (line < cmdline) |
360 | cmdline = line; |
361 | tmp = *s++; |
362 | OPERATOR(tmp); |
363 | case ')': |
364 | case ']': |
365 | tmp = *s++; |
366 | TERM(tmp); |
367 | case '}': |
368 | tmp = *s++; |
ffed7fef |
369 | RETURN(tmp); |
378cc40b |
370 | case '&': |
371 | s++; |
372 | tmp = *s++; |
373 | if (tmp == '&') |
374 | OPERATOR(ANDAND); |
375 | s--; |
a687059c |
376 | if (expectterm) { |
377 | d = bufend; |
378 | while (s < d && isspace(*s)) |
379 | s++; |
380 | if (isalpha(*s) || *s == '_' || *s == '\'') |
381 | *(--s) = '\\'; /* force next ident to WORD */ |
382 | OPERATOR(AMPER); |
383 | } |
378cc40b |
384 | OPERATOR('&'); |
385 | case '|': |
386 | s++; |
387 | tmp = *s++; |
388 | if (tmp == '|') |
389 | OPERATOR(OROR); |
390 | s--; |
391 | OPERATOR('|'); |
392 | case '=': |
393 | s++; |
394 | tmp = *s++; |
395 | if (tmp == '=') |
a687059c |
396 | EOP(O_EQ); |
378cc40b |
397 | if (tmp == '~') |
398 | OPERATOR(MATCH); |
399 | s--; |
400 | OPERATOR('='); |
401 | case '!': |
402 | s++; |
403 | tmp = *s++; |
404 | if (tmp == '=') |
a687059c |
405 | EOP(O_NE); |
378cc40b |
406 | if (tmp == '~') |
407 | OPERATOR(NMATCH); |
408 | s--; |
409 | OPERATOR('!'); |
410 | case '<': |
411 | if (expectterm) { |
412 | s = scanstr(s); |
413 | TERM(RSTRING); |
414 | } |
415 | s++; |
416 | tmp = *s++; |
417 | if (tmp == '<') |
418 | OPERATOR(LS); |
419 | if (tmp == '=') |
a687059c |
420 | ROP(O_LE); |
378cc40b |
421 | s--; |
a687059c |
422 | ROP(O_LT); |
378cc40b |
423 | case '>': |
424 | s++; |
425 | tmp = *s++; |
426 | if (tmp == '>') |
427 | OPERATOR(RS); |
428 | if (tmp == '=') |
a687059c |
429 | ROP(O_GE); |
378cc40b |
430 | s--; |
a687059c |
431 | ROP(O_GT); |
378cc40b |
432 | |
433 | #define SNARFWORD \ |
434 | d = tokenbuf; \ |
a687059c |
435 | while (isascii(*s) && \ |
436 | (isalpha(*s) || isdigit(*s) || *s == '_' || *s == '\'')) \ |
378cc40b |
437 | *d++ = *s++; \ |
663a0e37 |
438 | while (d[-1] == '\'') \ |
a687059c |
439 | d--,s--; \ |
378cc40b |
440 | *d = '\0'; \ |
441 | d = tokenbuf; |
442 | |
443 | case '$': |
444 | if (s[1] == '#' && (isalpha(s[2]) || s[2] == '_')) { |
445 | s++; |
a687059c |
446 | s = scanreg(s,bufend,tokenbuf); |
378cc40b |
447 | yylval.stabval = aadd(stabent(tokenbuf,TRUE)); |
448 | TERM(ARYLEN); |
449 | } |
a687059c |
450 | d = s; |
451 | s = scanreg(s,bufend,tokenbuf); |
452 | if (reparse) { /* turn ${foo[bar]} into ($foo[bar]) */ |
453 | do_reparse: |
454 | s[-1] = ')'; |
455 | s = d; |
456 | s[1] = s[0]; |
457 | s[0] = '('; |
458 | goto retry; |
459 | } |
378cc40b |
460 | yylval.stabval = stabent(tokenbuf,TRUE); |
461 | TERM(REG); |
462 | |
463 | case '@': |
a687059c |
464 | d = s; |
465 | s = scanreg(s,bufend,tokenbuf); |
466 | if (reparse) |
467 | goto do_reparse; |
468 | yylval.stabval = stabent(tokenbuf,TRUE); |
378cc40b |
469 | TERM(ARY); |
470 | |
471 | case '/': /* may either be division or pattern */ |
472 | case '?': /* may either be conditional or pattern */ |
473 | if (expectterm) { |
474 | s = scanpat(s); |
475 | TERM(PATTERN); |
476 | } |
477 | tmp = *s++; |
a687059c |
478 | if (tmp == '/') |
479 | MOP(O_DIVIDE); |
378cc40b |
480 | OPERATOR(tmp); |
481 | |
482 | case '.': |
483 | if (!expectterm || !isdigit(s[1])) { |
378cc40b |
484 | tmp = *s++; |
a687059c |
485 | if (*s == tmp) { |
486 | s++; |
378cc40b |
487 | OPERATOR(DOTDOT); |
a687059c |
488 | } |
489 | AOP(O_CONCAT); |
378cc40b |
490 | } |
491 | /* FALL THROUGH */ |
492 | case '0': case '1': case '2': case '3': case '4': |
493 | case '5': case '6': case '7': case '8': case '9': |
494 | case '\'': case '"': case '`': |
495 | s = scanstr(s); |
496 | TERM(RSTRING); |
497 | |
a687059c |
498 | case '\\': /* some magic to force next word to be a WORD */ |
499 | s++; /* used by do and sub to force a separate namespace */ |
500 | /* FALL THROUGH */ |
378cc40b |
501 | case '_': |
502 | SNARFWORD; |
a687059c |
503 | break; |
378cc40b |
504 | case 'a': case 'A': |
505 | SNARFWORD; |
a687059c |
506 | if (strEQ(d,"accept")) |
507 | FOP22(O_ACCEPT); |
508 | if (strEQ(d,"atan2")) |
509 | FUN2(O_ATAN2); |
510 | break; |
378cc40b |
511 | case 'b': case 'B': |
512 | SNARFWORD; |
a687059c |
513 | if (strEQ(d,"bind")) |
514 | FOP2(O_BIND); |
515 | break; |
378cc40b |
516 | case 'c': case 'C': |
517 | SNARFWORD; |
a687059c |
518 | if (strEQ(d,"chop")) |
519 | LFUN(O_CHOP); |
378cc40b |
520 | if (strEQ(d,"continue")) |
521 | OPERATOR(CONTINUE); |
522 | if (strEQ(d,"chdir")) |
523 | UNI(O_CHDIR); |
524 | if (strEQ(d,"close")) |
a687059c |
525 | FOP(O_CLOSE); |
526 | if (strEQ(d,"closedir")) |
527 | FOP(O_CLOSEDIR); |
528 | if (strEQ(d,"crypt")) { |
529 | #ifdef FCRYPT |
530 | init_des(); |
531 | #endif |
378cc40b |
532 | FUN2(O_CRYPT); |
378cc40b |
533 | } |
a687059c |
534 | if (strEQ(d,"chmod")) |
535 | LOP(O_CHMOD); |
536 | if (strEQ(d,"chown")) |
537 | LOP(O_CHOWN); |
538 | if (strEQ(d,"connect")) |
539 | FOP2(O_CONNECT); |
540 | if (strEQ(d,"cos")) |
541 | UNI(O_COS); |
542 | if (strEQ(d,"chroot")) |
543 | UNI(O_CHROOT); |
544 | break; |
378cc40b |
545 | case 'd': case 'D': |
546 | SNARFWORD; |
a687059c |
547 | if (strEQ(d,"do")) { |
548 | d = bufend; |
549 | while (s < d && isspace(*s)) |
550 | s++; |
551 | if (isalpha(*s) || *s == '_') |
552 | *(--s) = '\\'; /* force next ident to WORD */ |
378cc40b |
553 | OPERATOR(DO); |
a687059c |
554 | } |
378cc40b |
555 | if (strEQ(d,"die")) |
a687059c |
556 | LOP(O_DIE); |
557 | if (strEQ(d,"defined")) |
558 | LFUN(O_DEFINED); |
378cc40b |
559 | if (strEQ(d,"delete")) |
560 | OPERATOR(DELETE); |
a687059c |
561 | if (strEQ(d,"dbmopen")) |
562 | HFUN3(O_DBMOPEN); |
563 | if (strEQ(d,"dbmclose")) |
564 | HFUN(O_DBMCLOSE); |
565 | if (strEQ(d,"dump")) |
566 | LOOPX(O_DUMP); |
567 | break; |
378cc40b |
568 | case 'e': case 'E': |
569 | SNARFWORD; |
570 | if (strEQ(d,"else")) |
571 | OPERATOR(ELSE); |
572 | if (strEQ(d,"elsif")) { |
573 | yylval.ival = line; |
574 | OPERATOR(ELSIF); |
575 | } |
576 | if (strEQ(d,"eq") || strEQ(d,"EQ")) |
a687059c |
577 | EOP(O_SEQ); |
378cc40b |
578 | if (strEQ(d,"exit")) |
579 | UNI(O_EXIT); |
580 | if (strEQ(d,"eval")) { |
581 | allstabs = TRUE; /* must initialize everything since */ |
582 | UNI(O_EVAL); /* we don't know what will be used */ |
583 | } |
584 | if (strEQ(d,"eof")) |
a687059c |
585 | FOP(O_EOF); |
378cc40b |
586 | if (strEQ(d,"exp")) |
a687059c |
587 | UNI(O_EXP); |
378cc40b |
588 | if (strEQ(d,"each")) |
a687059c |
589 | HFUN(O_EACH); |
378cc40b |
590 | if (strEQ(d,"exec")) { |
a687059c |
591 | set_csh(); |
592 | LOP(O_EXEC); |
378cc40b |
593 | } |
a687059c |
594 | if (strEQ(d,"endhostent")) |
595 | FUN0(O_EHOSTENT); |
596 | if (strEQ(d,"endnetent")) |
597 | FUN0(O_ENETENT); |
598 | if (strEQ(d,"endservent")) |
599 | FUN0(O_ESERVENT); |
600 | if (strEQ(d,"endprotoent")) |
601 | FUN0(O_EPROTOENT); |
602 | if (strEQ(d,"endpwent")) |
603 | FUN0(O_EPWENT); |
604 | if (strEQ(d,"endgrent")) |
605 | FUN0(O_EGRENT); |
606 | break; |
378cc40b |
607 | case 'f': case 'F': |
608 | SNARFWORD; |
609 | if (strEQ(d,"for")) |
610 | OPERATOR(FOR); |
611 | if (strEQ(d,"foreach")) |
612 | OPERATOR(FOR); |
613 | if (strEQ(d,"format")) { |
a687059c |
614 | d = bufend; |
615 | while (s < d && isspace(*s)) |
616 | s++; |
617 | if (isalpha(*s) || *s == '_') |
618 | *(--s) = '\\'; /* force next ident to WORD */ |
378cc40b |
619 | in_format = TRUE; |
a687059c |
620 | allstabs = TRUE; /* must initialize everything since */ |
621 | OPERATOR(FORMAT); /* we don't know what will be used */ |
378cc40b |
622 | } |
623 | if (strEQ(d,"fork")) |
624 | FUN0(O_FORK); |
a687059c |
625 | if (strEQ(d,"fcntl")) |
626 | FOP3(O_FCNTL); |
627 | if (strEQ(d,"fileno")) |
628 | FOP(O_FILENO); |
629 | if (strEQ(d,"flock")) |
630 | FOP2(O_FLOCK); |
631 | break; |
378cc40b |
632 | case 'g': case 'G': |
633 | SNARFWORD; |
634 | if (strEQ(d,"gt") || strEQ(d,"GT")) |
a687059c |
635 | ROP(O_SGT); |
378cc40b |
636 | if (strEQ(d,"ge") || strEQ(d,"GE")) |
a687059c |
637 | ROP(O_SGE); |
638 | if (strEQ(d,"grep")) |
639 | FL2(O_GREP); |
378cc40b |
640 | if (strEQ(d,"goto")) |
641 | LOOPX(O_GOTO); |
642 | if (strEQ(d,"gmtime")) |
a687059c |
643 | UNI(O_GMTIME); |
644 | if (strEQ(d,"getc")) |
645 | FOP(O_GETC); |
646 | if (strnEQ(d,"get",3)) { |
647 | d += 3; |
648 | if (*d == 'p') { |
649 | if (strEQ(d,"ppid")) |
650 | FUN0(O_GETPPID); |
651 | if (strEQ(d,"pgrp")) |
652 | UNI(O_GETPGRP); |
653 | if (strEQ(d,"priority")) |
654 | FUN2(O_GETPRIORITY); |
655 | if (strEQ(d,"protobyname")) |
656 | UNI(O_GPBYNAME); |
657 | if (strEQ(d,"protobynumber")) |
658 | FUN1(O_GPBYNUMBER); |
659 | if (strEQ(d,"protoent")) |
660 | FUN0(O_GPROTOENT); |
661 | if (strEQ(d,"pwent")) |
662 | FUN0(O_GPWENT); |
663 | if (strEQ(d,"pwnam")) |
664 | FUN1(O_GPWNAM); |
665 | if (strEQ(d,"pwuid")) |
666 | FUN1(O_GPWUID); |
667 | if (strEQ(d,"peername")) |
668 | FOP(O_GETPEERNAME); |
669 | } |
670 | else if (*d == 'h') { |
671 | if (strEQ(d,"hostbyname")) |
672 | UNI(O_GHBYNAME); |
673 | if (strEQ(d,"hostbyaddr")) |
674 | FUN2(O_GHBYADDR); |
675 | if (strEQ(d,"hostent")) |
676 | FUN0(O_GHOSTENT); |
677 | } |
678 | else if (*d == 'n') { |
679 | if (strEQ(d,"netbyname")) |
680 | UNI(O_GNBYNAME); |
681 | if (strEQ(d,"netbyaddr")) |
682 | FUN2(O_GNBYADDR); |
683 | if (strEQ(d,"netent")) |
684 | FUN0(O_GNETENT); |
685 | } |
686 | else if (*d == 's') { |
687 | if (strEQ(d,"servbyname")) |
688 | FUN2(O_GSBYNAME); |
689 | if (strEQ(d,"servbyport")) |
690 | FUN2(O_GSBYPORT); |
691 | if (strEQ(d,"servent")) |
692 | FUN0(O_GSERVENT); |
693 | if (strEQ(d,"sockname")) |
694 | FOP(O_GETSOCKNAME); |
695 | if (strEQ(d,"sockopt")) |
696 | FOP3(O_GSOCKOPT); |
697 | } |
698 | else if (*d == 'g') { |
699 | if (strEQ(d,"grent")) |
700 | FUN0(O_GGRENT); |
701 | if (strEQ(d,"grnam")) |
702 | FUN1(O_GGRNAM); |
703 | if (strEQ(d,"grgid")) |
704 | FUN1(O_GGRGID); |
705 | } |
706 | else if (*d == 'l') { |
707 | if (strEQ(d,"login")) |
708 | FUN0(O_GETLOGIN); |
709 | } |
710 | d -= 3; |
711 | } |
712 | break; |
378cc40b |
713 | case 'h': case 'H': |
714 | SNARFWORD; |
715 | if (strEQ(d,"hex")) |
a687059c |
716 | UNI(O_HEX); |
717 | break; |
378cc40b |
718 | case 'i': case 'I': |
719 | SNARFWORD; |
720 | if (strEQ(d,"if")) { |
721 | yylval.ival = line; |
722 | OPERATOR(IF); |
723 | } |
724 | if (strEQ(d,"index")) |
725 | FUN2(O_INDEX); |
726 | if (strEQ(d,"int")) |
a687059c |
727 | UNI(O_INT); |
728 | if (strEQ(d,"ioctl")) |
729 | FOP3(O_IOCTL); |
730 | break; |
378cc40b |
731 | case 'j': case 'J': |
732 | SNARFWORD; |
733 | if (strEQ(d,"join")) |
a687059c |
734 | FL2(O_JOIN); |
735 | break; |
378cc40b |
736 | case 'k': case 'K': |
737 | SNARFWORD; |
738 | if (strEQ(d,"keys")) |
a687059c |
739 | HFUN(O_KEYS); |
740 | if (strEQ(d,"kill")) |
741 | LOP(O_KILL); |
742 | break; |
378cc40b |
743 | case 'l': case 'L': |
744 | SNARFWORD; |
745 | if (strEQ(d,"last")) |
746 | LOOPX(O_LAST); |
747 | if (strEQ(d,"local")) |
748 | OPERATOR(LOCAL); |
749 | if (strEQ(d,"length")) |
a687059c |
750 | UNI(O_LENGTH); |
378cc40b |
751 | if (strEQ(d,"lt") || strEQ(d,"LT")) |
a687059c |
752 | ROP(O_SLT); |
378cc40b |
753 | if (strEQ(d,"le") || strEQ(d,"LE")) |
a687059c |
754 | ROP(O_SLE); |
378cc40b |
755 | if (strEQ(d,"localtime")) |
a687059c |
756 | UNI(O_LOCALTIME); |
378cc40b |
757 | if (strEQ(d,"log")) |
a687059c |
758 | UNI(O_LOG); |
378cc40b |
759 | if (strEQ(d,"link")) |
760 | FUN2(O_LINK); |
a687059c |
761 | if (strEQ(d,"listen")) |
762 | FOP2(O_LISTEN); |
763 | if (strEQ(d,"lstat")) |
764 | FOP(O_LSTAT); |
765 | break; |
378cc40b |
766 | case 'm': case 'M': |
663a0e37 |
767 | if (s[1] == '\'') { |
768 | d = "m"; |
769 | s++; |
770 | } |
771 | else { |
772 | SNARFWORD; |
773 | } |
378cc40b |
774 | if (strEQ(d,"m")) { |
775 | s = scanpat(s-1); |
a687059c |
776 | if (yylval.arg) |
777 | TERM(PATTERN); |
778 | else |
779 | RETURN(1); /* force error */ |
378cc40b |
780 | } |
a687059c |
781 | if (strEQ(d,"mkdir")) |
782 | FUN2(O_MKDIR); |
783 | break; |
378cc40b |
784 | case 'n': case 'N': |
785 | SNARFWORD; |
786 | if (strEQ(d,"next")) |
787 | LOOPX(O_NEXT); |
788 | if (strEQ(d,"ne") || strEQ(d,"NE")) |
a687059c |
789 | EOP(O_SNE); |
790 | break; |
378cc40b |
791 | case 'o': case 'O': |
792 | SNARFWORD; |
793 | if (strEQ(d,"open")) |
794 | OPERATOR(OPEN); |
795 | if (strEQ(d,"ord")) |
a687059c |
796 | UNI(O_ORD); |
378cc40b |
797 | if (strEQ(d,"oct")) |
a687059c |
798 | UNI(O_OCT); |
799 | if (strEQ(d,"opendir")) |
800 | FOP2(O_OPENDIR); |
801 | break; |
378cc40b |
802 | case 'p': case 'P': |
803 | SNARFWORD; |
804 | if (strEQ(d,"print")) { |
a687059c |
805 | checkcomma(s,"filehandle"); |
806 | LOP(O_PRINT); |
378cc40b |
807 | } |
808 | if (strEQ(d,"printf")) { |
a687059c |
809 | checkcomma(s,"filehandle"); |
810 | LOP(O_PRTF); |
378cc40b |
811 | } |
812 | if (strEQ(d,"push")) { |
813 | yylval.ival = O_PUSH; |
814 | OPERATOR(PUSH); |
815 | } |
816 | if (strEQ(d,"pop")) |
817 | OPERATOR(POP); |
a687059c |
818 | if (strEQ(d,"pack")) |
819 | FL2(O_PACK); |
820 | if (strEQ(d,"package")) |
821 | OPERATOR(PACKAGE); |
822 | break; |
378cc40b |
823 | case 'q': case 'Q': |
824 | SNARFWORD; |
a687059c |
825 | if (strEQ(d,"q")) { |
826 | s = scanstr(s-1); |
827 | TERM(RSTRING); |
828 | } |
829 | if (strEQ(d,"qq")) { |
830 | s = scanstr(s-2); |
831 | TERM(RSTRING); |
832 | } |
833 | break; |
378cc40b |
834 | case 'r': case 'R': |
835 | SNARFWORD; |
a687059c |
836 | if (strEQ(d,"return")) |
837 | LOP(O_RETURN); |
378cc40b |
838 | if (strEQ(d,"reset")) |
839 | UNI(O_RESET); |
840 | if (strEQ(d,"redo")) |
841 | LOOPX(O_REDO); |
842 | if (strEQ(d,"rename")) |
843 | FUN2(O_RENAME); |
a687059c |
844 | if (strEQ(d,"rand")) |
845 | UNI(O_RAND); |
846 | if (strEQ(d,"rmdir")) |
847 | UNI(O_RMDIR); |
848 | if (strEQ(d,"rindex")) |
849 | FUN2(O_RINDEX); |
850 | if (strEQ(d,"read")) |
851 | FOP3(O_READ); |
852 | if (strEQ(d,"readdir")) |
853 | FOP(O_READDIR); |
854 | if (strEQ(d,"rewinddir")) |
855 | FOP(O_REWINDDIR); |
856 | if (strEQ(d,"recv")) |
857 | FOP4(O_RECV); |
858 | if (strEQ(d,"reverse")) |
859 | LOP(O_REVERSE); |
860 | if (strEQ(d,"readlink")) |
861 | UNI(O_READLINK); |
862 | break; |
378cc40b |
863 | case 's': case 'S': |
663a0e37 |
864 | if (s[1] == '\'') { |
865 | d = "s"; |
866 | s++; |
867 | } |
868 | else { |
869 | SNARFWORD; |
870 | } |
378cc40b |
871 | if (strEQ(d,"s")) { |
872 | s = scansubst(s); |
a687059c |
873 | if (yylval.arg) |
874 | TERM(SUBST); |
875 | else |
876 | RETURN(1); /* force error */ |
877 | } |
878 | switch (d[1]) { |
879 | case 'a': |
880 | case 'b': |
881 | case 'c': |
882 | case 'd': |
883 | break; |
884 | case 'e': |
885 | if (strEQ(d,"select")) |
886 | OPERATOR(SELECT); |
887 | if (strEQ(d,"seek")) |
888 | FOP3(O_SEEK); |
889 | if (strEQ(d,"send")) |
890 | FOP3(O_SEND); |
891 | if (strEQ(d,"setpgrp")) |
892 | FUN2(O_SETPGRP); |
893 | if (strEQ(d,"setpriority")) |
894 | FUN3(O_SETPRIORITY); |
895 | if (strEQ(d,"sethostent")) |
896 | FUN1(O_SHOSTENT); |
897 | if (strEQ(d,"setnetent")) |
898 | FUN1(O_SNETENT); |
899 | if (strEQ(d,"setservent")) |
900 | FUN1(O_SSERVENT); |
901 | if (strEQ(d,"setprotoent")) |
902 | FUN1(O_SPROTOENT); |
903 | if (strEQ(d,"setpwent")) |
904 | FUN0(O_SPWENT); |
905 | if (strEQ(d,"setgrent")) |
906 | FUN0(O_SGRENT); |
907 | if (strEQ(d,"seekdir")) |
908 | FOP2(O_SEEKDIR); |
909 | if (strEQ(d,"setsockopt")) |
910 | FOP4(O_SSOCKOPT); |
911 | break; |
912 | case 'f': |
913 | case 'g': |
914 | break; |
915 | case 'h': |
916 | if (strEQ(d,"shift")) |
917 | TERM(SHIFT); |
918 | if (strEQ(d,"shutdown")) |
919 | FOP2(O_SHUTDOWN); |
920 | break; |
921 | case 'i': |
922 | if (strEQ(d,"sin")) |
923 | UNI(O_SIN); |
924 | break; |
925 | case 'j': |
926 | case 'k': |
927 | break; |
928 | case 'l': |
929 | if (strEQ(d,"sleep")) |
930 | UNI(O_SLEEP); |
931 | break; |
932 | case 'm': |
933 | case 'n': |
934 | break; |
935 | case 'o': |
936 | if (strEQ(d,"socket")) |
937 | FOP4(O_SOCKET); |
938 | if (strEQ(d,"socketpair")) |
939 | FOP25(O_SOCKETPAIR); |
940 | if (strEQ(d,"sort")) { |
941 | checkcomma(s,"subroutine name"); |
942 | d = bufend; |
943 | while (s < d && isascii(*s) && isspace(*s)) s++; |
944 | if (*s == ';' || *s == ')') /* probably a close */ |
945 | fatal("sort is now a reserved word"); |
946 | if (isascii(*s) && (isalpha(*s) || *s == '_')) { |
947 | for (d = s; isalpha(*d) || isdigit(*d) || *d == '_'; d++) ; |
03a14243 |
948 | strncpy(tokenbuf,s,d-s); |
949 | if (strNE(tokenbuf,"keys") && |
950 | strNE(tokenbuf,"values") && |
951 | strNE(tokenbuf,"split") && |
952 | strNE(tokenbuf,"grep") && |
953 | strNE(tokenbuf,"readdir") && |
954 | strNE(tokenbuf,"unpack") && |
955 | strNE(tokenbuf,"do") && |
956 | (d >= bufend || isspace(*d)) ) |
a687059c |
957 | *(--s) = '\\'; /* force next ident to WORD */ |
958 | } |
959 | LOP(O_SORT); |
960 | } |
961 | break; |
962 | case 'p': |
963 | if (strEQ(d,"split")) |
964 | TERM(SPLIT); |
965 | if (strEQ(d,"sprintf")) |
966 | FL(O_SPRINTF); |
967 | break; |
968 | case 'q': |
969 | if (strEQ(d,"sqrt")) |
970 | UNI(O_SQRT); |
971 | break; |
972 | case 'r': |
973 | if (strEQ(d,"srand")) |
974 | UNI(O_SRAND); |
975 | break; |
976 | case 's': |
977 | break; |
978 | case 't': |
979 | if (strEQ(d,"stat")) |
980 | FOP(O_STAT); |
981 | if (strEQ(d,"study")) { |
982 | sawstudy++; |
983 | LFUN(O_STUDY); |
984 | } |
985 | break; |
986 | case 'u': |
987 | if (strEQ(d,"substr")) |
988 | FUN3(O_SUBSTR); |
989 | if (strEQ(d,"sub")) { |
990 | subline = line; |
991 | d = bufend; |
992 | while (s < d && isspace(*s)) |
993 | s++; |
994 | if (isalpha(*s) || *s == '_' || *s == '\'') { |
995 | if (perldb) { |
996 | str_sset(subname,curstname); |
997 | str_ncat(subname,"'",1); |
998 | for (d = s+1; |
999 | isalpha(*d) || isdigit(*d) || *d == '_' || *d == '\''; |
1000 | d++); |
1001 | if (d[-1] == '\'') |
1002 | d--; |
1003 | str_ncat(subname,s,d-s); |
1004 | } |
1005 | *(--s) = '\\'; /* force next ident to WORD */ |
1006 | } |
1007 | else if (perldb) |
1008 | str_set(subname,"?"); |
1009 | OPERATOR(SUB); |
1010 | } |
1011 | break; |
1012 | case 'v': |
1013 | case 'w': |
1014 | case 'x': |
1015 | break; |
1016 | case 'y': |
1017 | if (strEQ(d,"system")) { |
1018 | set_csh(); |
1019 | LOP(O_SYSTEM); |
1020 | } |
1021 | if (strEQ(d,"symlink")) |
1022 | FUN2(O_SYMLINK); |
1023 | if (strEQ(d,"syscall")) |
1024 | LOP(O_SYSCALL); |
1025 | break; |
1026 | case 'z': |
1027 | break; |
1028 | } |
1029 | break; |
378cc40b |
1030 | case 't': case 'T': |
1031 | SNARFWORD; |
1032 | if (strEQ(d,"tr")) { |
1033 | s = scantrans(s); |
a687059c |
1034 | if (yylval.arg) |
1035 | TERM(TRANS); |
1036 | else |
1037 | RETURN(1); /* force error */ |
378cc40b |
1038 | } |
1039 | if (strEQ(d,"tell")) |
a687059c |
1040 | FOP(O_TELL); |
1041 | if (strEQ(d,"telldir")) |
1042 | FOP(O_TELLDIR); |
378cc40b |
1043 | if (strEQ(d,"time")) |
1044 | FUN0(O_TIME); |
1045 | if (strEQ(d,"times")) |
1046 | FUN0(O_TMS); |
a687059c |
1047 | break; |
378cc40b |
1048 | case 'u': case 'U': |
1049 | SNARFWORD; |
1050 | if (strEQ(d,"using")) |
1051 | OPERATOR(USING); |
1052 | if (strEQ(d,"until")) { |
1053 | yylval.ival = line; |
1054 | OPERATOR(UNTIL); |
1055 | } |
1056 | if (strEQ(d,"unless")) { |
1057 | yylval.ival = line; |
1058 | OPERATOR(UNLESS); |
1059 | } |
a687059c |
1060 | if (strEQ(d,"unlink")) |
1061 | LOP(O_UNLINK); |
1062 | if (strEQ(d,"undef")) |
1063 | LFUN(O_UNDEF); |
1064 | if (strEQ(d,"unpack")) |
1065 | FUN2(O_UNPACK); |
1066 | if (strEQ(d,"utime")) |
1067 | LOP(O_UTIME); |
378cc40b |
1068 | if (strEQ(d,"umask")) |
a687059c |
1069 | UNI(O_UMASK); |
378cc40b |
1070 | if (strEQ(d,"unshift")) { |
1071 | yylval.ival = O_UNSHIFT; |
1072 | OPERATOR(PUSH); |
1073 | } |
a687059c |
1074 | break; |
378cc40b |
1075 | case 'v': case 'V': |
1076 | SNARFWORD; |
1077 | if (strEQ(d,"values")) |
a687059c |
1078 | HFUN(O_VALUES); |
1079 | if (strEQ(d,"vec")) { |
1080 | sawvec = TRUE; |
1081 | FUN3(O_VEC); |
1082 | } |
1083 | break; |
378cc40b |
1084 | case 'w': case 'W': |
1085 | SNARFWORD; |
378cc40b |
1086 | if (strEQ(d,"while")) { |
1087 | yylval.ival = line; |
1088 | OPERATOR(WHILE); |
1089 | } |
a687059c |
1090 | if (strEQ(d,"warn")) |
1091 | LOP(O_WARN); |
378cc40b |
1092 | if (strEQ(d,"wait")) |
1093 | FUN0(O_WAIT); |
a687059c |
1094 | if (strEQ(d,"wantarray")) { |
1095 | yylval.arg = op_new(1); |
1096 | yylval.arg->arg_type = O_ITEM; |
1097 | yylval.arg[1].arg_type = A_WANTARRAY; |
1098 | TERM(RSTRING); |
1099 | } |
1100 | if (strEQ(d,"write")) |
1101 | FOP(O_WRITE); |
1102 | break; |
378cc40b |
1103 | case 'x': case 'X': |
1104 | SNARFWORD; |
1105 | if (!expectterm && strEQ(d,"x")) |
a687059c |
1106 | MOP(O_REPEAT); |
1107 | break; |
378cc40b |
1108 | case 'y': case 'Y': |
663a0e37 |
1109 | if (s[1] == '\'') { |
1110 | d = "y"; |
1111 | s++; |
1112 | } |
1113 | else { |
1114 | SNARFWORD; |
1115 | } |
378cc40b |
1116 | if (strEQ(d,"y")) { |
1117 | s = scantrans(s); |
1118 | TERM(TRANS); |
1119 | } |
a687059c |
1120 | break; |
378cc40b |
1121 | case 'z': case 'Z': |
1122 | SNARFWORD; |
a687059c |
1123 | break; |
1124 | } |
1125 | yylval.cval = savestr(d); |
1126 | expectterm = FALSE; |
1127 | if (oldoldbufptr && oldoldbufptr < bufptr) { |
1128 | while (isspace(*oldoldbufptr)) |
1129 | oldoldbufptr++; |
1130 | if (*oldoldbufptr == 'p' && strnEQ(oldoldbufptr,"print",5)) |
1131 | expectterm = TRUE; |
1132 | else if (*oldoldbufptr == 's' && strnEQ(oldoldbufptr,"sort",4)) |
1133 | expectterm = TRUE; |
1134 | } |
1135 | return (CLINE, bufptr = s, (int)WORD); |
1136 | } |
1137 | |
1138 | int |
1139 | checkcomma(s,what) |
1140 | register char *s; |
1141 | char *what; |
1142 | { |
1143 | if (*s == '(') |
1144 | s++; |
1145 | while (s < bufend && isascii(*s) && isspace(*s)) |
1146 | s++; |
1147 | if (isascii(*s) && (isalpha(*s) || *s == '_')) { |
1148 | s++; |
1149 | while (isalpha(*s) || isdigit(*s) || *s == '_') |
1150 | s++; |
1151 | while (s < bufend && isspace(*s)) |
1152 | s++; |
1153 | if (*s == ',') |
1154 | fatal("No comma allowed after %s", what); |
378cc40b |
1155 | } |
1156 | } |
1157 | |
1158 | char * |
a687059c |
1159 | scanreg(s,send,dest) |
378cc40b |
1160 | register char *s; |
a687059c |
1161 | register char *send; |
378cc40b |
1162 | char *dest; |
1163 | { |
1164 | register char *d; |
a687059c |
1165 | int brackets = 0; |
378cc40b |
1166 | |
a687059c |
1167 | reparse = Nullch; |
378cc40b |
1168 | s++; |
1169 | d = dest; |
1170 | if (isdigit(*s)) { |
a687059c |
1171 | while (isdigit(*s)) |
378cc40b |
1172 | *d++ = *s++; |
1173 | } |
1174 | else { |
a687059c |
1175 | while (isalpha(*s) || isdigit(*s) || *s == '_' || *s == '\'') |
378cc40b |
1176 | *d++ = *s++; |
1177 | } |
663a0e37 |
1178 | while (d > dest+1 && d[-1] == '\'') |
a687059c |
1179 | d--,s--; |
378cc40b |
1180 | *d = '\0'; |
1181 | d = dest; |
1182 | if (!*d) { |
1183 | *d = *s++; |
a687059c |
1184 | if (*d == '{' /* } */ ) { |
378cc40b |
1185 | d = dest; |
a687059c |
1186 | brackets++; |
1187 | while (s < send && brackets) { |
1188 | if (!reparse && (d == dest || (*s && isascii(*s) && |
1189 | (isalpha(*s) || isdigit(*s) || *s == '_') ))) { |
1190 | *d++ = *s++; |
1191 | continue; |
1192 | } |
1193 | else if (!reparse) |
1194 | reparse = s; |
1195 | switch (*s++) { |
1196 | /* { */ |
1197 | case '}': |
1198 | brackets--; |
1199 | if (reparse && reparse == s - 1) |
1200 | reparse = Nullch; |
1201 | break; |
1202 | case '{': /* } */ |
1203 | brackets++; |
1204 | break; |
1205 | } |
1206 | } |
378cc40b |
1207 | *d = '\0'; |
1208 | d = dest; |
378cc40b |
1209 | } |
1210 | else |
1211 | d[1] = '\0'; |
1212 | } |
1213 | if (*d == '^' && !isspace(*s)) |
1214 | *d = *s++ & 31; |
1215 | return s; |
1216 | } |
1217 | |
1218 | STR * |
a687059c |
1219 | scanconst(string,len) |
378cc40b |
1220 | char *string; |
a687059c |
1221 | int len; |
378cc40b |
1222 | { |
1223 | register STR *retstr; |
1224 | register char *t; |
1225 | register char *d; |
a687059c |
1226 | register char *e; |
378cc40b |
1227 | |
1228 | if (index(string,'|')) { |
1229 | return Nullstr; |
1230 | } |
a687059c |
1231 | retstr = Str_new(86,len); |
1232 | str_nset(retstr,string,len); |
378cc40b |
1233 | t = str_get(retstr); |
a687059c |
1234 | e = t + len; |
1235 | retstr->str_u.str_useful = 100; |
1236 | for (d=t; d < e; ) { |
378cc40b |
1237 | switch (*d) { |
a687059c |
1238 | case '{': |
1239 | if (isdigit(d[1])) |
1240 | e = d; |
1241 | else |
1242 | goto defchar; |
1243 | break; |
1244 | case '.': case '[': case '$': case '(': case ')': case '|': case '+': |
1245 | e = d; |
378cc40b |
1246 | break; |
1247 | case '\\': |
a687059c |
1248 | if (d[1] && index("wWbB0123456789sSdD",d[1])) { |
1249 | e = d; |
378cc40b |
1250 | break; |
1251 | } |
a687059c |
1252 | (void)bcopy(d+1,d,e-d); |
1253 | e--; |
378cc40b |
1254 | switch(*d) { |
1255 | case 'n': |
1256 | *d = '\n'; |
1257 | break; |
1258 | case 't': |
1259 | *d = '\t'; |
1260 | break; |
1261 | case 'f': |
1262 | *d = '\f'; |
1263 | break; |
1264 | case 'r': |
1265 | *d = '\r'; |
1266 | break; |
1267 | } |
1268 | /* FALL THROUGH */ |
1269 | default: |
a687059c |
1270 | defchar: |
1271 | if (d[1] == '*' || (d[1] == '{' && d[2] == '0') || d[1] == '?') { |
1272 | e = d; |
378cc40b |
1273 | break; |
1274 | } |
1275 | d++; |
1276 | } |
1277 | } |
a687059c |
1278 | if (d == t) { |
378cc40b |
1279 | str_free(retstr); |
1280 | return Nullstr; |
1281 | } |
a687059c |
1282 | *d = '\0'; |
1283 | retstr->str_cur = d - t; |
378cc40b |
1284 | return retstr; |
1285 | } |
1286 | |
1287 | char * |
1288 | scanpat(s) |
1289 | register char *s; |
1290 | { |
a687059c |
1291 | register SPAT *spat; |
378cc40b |
1292 | register char *d; |
a687059c |
1293 | register char *e; |
1294 | int len; |
1295 | SPAT savespat; |
378cc40b |
1296 | |
a687059c |
1297 | Newz(801,spat,1,SPAT); |
1298 | spat->spat_next = curstash->tbl_spatroot; /* link into spat list */ |
1299 | curstash->tbl_spatroot = spat; |
378cc40b |
1300 | |
1301 | switch (*s++) { |
1302 | case 'm': |
1303 | s++; |
1304 | break; |
1305 | case '/': |
1306 | break; |
1307 | case '?': |
1308 | spat->spat_flags |= SPAT_ONCE; |
1309 | break; |
1310 | default: |
1311 | fatal("panic: scanpat"); |
1312 | } |
a687059c |
1313 | s = cpytill(tokenbuf,s,bufend,s[-1],&len); |
1314 | if (s >= bufend) { |
1315 | yyerror("Search pattern not terminated"); |
1316 | yylval.arg = Nullarg; |
1317 | return s; |
1318 | } |
378cc40b |
1319 | s++; |
a687059c |
1320 | while (*s == 'i' || *s == 'o') { |
1321 | if (*s == 'i') { |
1322 | s++; |
1323 | sawi = TRUE; |
1324 | spat->spat_flags |= SPAT_FOLD; |
1325 | } |
1326 | if (*s == 'o') { |
1327 | s++; |
1328 | spat->spat_flags |= SPAT_KEEP; |
1329 | } |
378cc40b |
1330 | } |
a687059c |
1331 | e = tokenbuf + len; |
1332 | for (d=tokenbuf; d < e; d++) { |
1333 | if ((*d == '$' && d[1] && d[-1] != '\\' && d[1] != '|') || |
1334 | (*d == '@' && d[-1] != '\\')) { |
378cc40b |
1335 | register ARG *arg; |
1336 | |
1337 | spat->spat_runtime = arg = op_new(1); |
1338 | arg->arg_type = O_ITEM; |
1339 | arg[1].arg_type = A_DOUBLE; |
a687059c |
1340 | arg[1].arg_ptr.arg_str = str_make(tokenbuf,len); |
1341 | arg[1].arg_ptr.arg_str->str_u.str_hash = curstash; |
1342 | d = scanreg(d,bufend,buf); |
1343 | (void)stabent(buf,TRUE); /* make sure it's created */ |
1344 | for (; d < e; d++) { |
1345 | if (*d == '$' && d[1] && d[-1] != '\\' && d[1] != '|') { |
1346 | d = scanreg(d,bufend,buf); |
1347 | (void)stabent(buf,TRUE); |
1348 | } |
1349 | else if (*d == '@' && d[-1] != '\\') { |
1350 | d = scanreg(d,bufend,buf); |
1351 | if (strEQ(buf,"ARGV") || strEQ(buf,"ENV") || |
1352 | strEQ(buf,"SIG") || strEQ(buf,"INC")) |
1353 | (void)stabent(buf,TRUE); |
1354 | } |
1355 | } |
378cc40b |
1356 | goto got_pat; /* skip compiling for now */ |
1357 | } |
1358 | } |
a687059c |
1359 | if (spat->spat_flags & SPAT_FOLD) |
1360 | #ifdef STRUCTCOPY |
1361 | savespat = *spat; |
1362 | #else |
1363 | (void)bcopy((char *)spat, (char *)&savespat, sizeof(SPAT)); |
1364 | #endif |
1365 | if (*tokenbuf == '^') { |
1366 | spat->spat_short = scanconst(tokenbuf+1,len-1); |
1367 | if (spat->spat_short) { |
1368 | spat->spat_slen = spat->spat_short->str_cur; |
1369 | if (spat->spat_slen == len - 1) |
1370 | spat->spat_flags |= SPAT_ALL; |
378cc40b |
1371 | } |
378cc40b |
1372 | } |
a687059c |
1373 | else { |
1374 | spat->spat_flags |= SPAT_SCANFIRST; |
1375 | spat->spat_short = scanconst(tokenbuf,len); |
1376 | if (spat->spat_short) { |
1377 | spat->spat_slen = spat->spat_short->str_cur; |
1378 | if (spat->spat_slen == len) |
1379 | spat->spat_flags |= SPAT_ALL; |
1380 | } |
1381 | } |
1382 | if ((spat->spat_flags & SPAT_ALL) && (spat->spat_flags & SPAT_SCANFIRST)) { |
1383 | fbmcompile(spat->spat_short, spat->spat_flags & SPAT_FOLD); |
1384 | spat->spat_regexp = regcomp(tokenbuf,tokenbuf+len, |
1385 | spat->spat_flags & SPAT_FOLD,1); |
1386 | /* Note that this regexp can still be used if someone says |
1387 | * something like /a/ && s//b/; so we can't delete it. |
1388 | */ |
1389 | } |
1390 | else { |
1391 | if (spat->spat_flags & SPAT_FOLD) |
1392 | #ifdef STRUCTCOPY |
1393 | *spat = savespat; |
1394 | #else |
1395 | (void)bcopy((char *)&savespat, (char *)spat, sizeof(SPAT)); |
1396 | #endif |
1397 | if (spat->spat_short) |
1398 | fbmcompile(spat->spat_short, spat->spat_flags & SPAT_FOLD); |
1399 | spat->spat_regexp = regcomp(tokenbuf,tokenbuf+len, |
1400 | spat->spat_flags & SPAT_FOLD,1); |
1401 | hoistmust(spat); |
1402 | } |
378cc40b |
1403 | got_pat: |
1404 | yylval.arg = make_match(O_MATCH,stab2arg(A_STAB,defstab),spat); |
1405 | return s; |
1406 | } |
1407 | |
1408 | char * |
1409 | scansubst(s) |
1410 | register char *s; |
1411 | { |
a687059c |
1412 | register SPAT *spat; |
378cc40b |
1413 | register char *d; |
a687059c |
1414 | register char *e; |
1415 | int len; |
378cc40b |
1416 | |
a687059c |
1417 | Newz(802,spat,1,SPAT); |
1418 | spat->spat_next = curstash->tbl_spatroot; /* link into spat list */ |
1419 | curstash->tbl_spatroot = spat; |
378cc40b |
1420 | |
a687059c |
1421 | s = cpytill(tokenbuf,s+1,bufend,*s,&len); |
1422 | if (s >= bufend) { |
1423 | yyerror("Substitution pattern not terminated"); |
1424 | yylval.arg = Nullarg; |
1425 | return s; |
1426 | } |
1427 | e = tokenbuf + len; |
1428 | for (d=tokenbuf; d < e; d++) { |
1429 | if ((*d == '$' && d[1] && d[-1] != '\\' && d[1] != '|') || |
1430 | (*d == '@' && d[-1] != '\\')) { |
378cc40b |
1431 | register ARG *arg; |
1432 | |
1433 | spat->spat_runtime = arg = op_new(1); |
1434 | arg->arg_type = O_ITEM; |
1435 | arg[1].arg_type = A_DOUBLE; |
a687059c |
1436 | arg[1].arg_ptr.arg_str = str_make(tokenbuf,len); |
1437 | arg[1].arg_ptr.arg_str->str_u.str_hash = curstash; |
1438 | d = scanreg(d,bufend,buf); |
1439 | (void)stabent(buf,TRUE); /* make sure it's created */ |
1440 | for (; *d; d++) { |
1441 | if (*d == '$' && d[1] && d[-1] != '\\' && d[1] != '|') { |
1442 | d = scanreg(d,bufend,buf); |
1443 | (void)stabent(buf,TRUE); |
1444 | } |
1445 | else if (*d == '@' && d[-1] != '\\') { |
1446 | d = scanreg(d,bufend,buf); |
1447 | if (strEQ(buf,"ARGV") || strEQ(buf,"ENV") || |
1448 | strEQ(buf,"SIG") || strEQ(buf,"INC")) |
1449 | (void)stabent(buf,TRUE); |
1450 | } |
1451 | } |
378cc40b |
1452 | goto get_repl; /* skip compiling for now */ |
1453 | } |
1454 | } |
1455 | if (*tokenbuf == '^') { |
a687059c |
1456 | spat->spat_short = scanconst(tokenbuf+1,len-1); |
378cc40b |
1457 | if (spat->spat_short) |
a687059c |
1458 | spat->spat_slen = spat->spat_short->str_cur; |
378cc40b |
1459 | } |
1460 | else { |
1461 | spat->spat_flags |= SPAT_SCANFIRST; |
a687059c |
1462 | spat->spat_short = scanconst(tokenbuf,len); |
378cc40b |
1463 | if (spat->spat_short) |
a687059c |
1464 | spat->spat_slen = spat->spat_short->str_cur; |
1465 | } |
1466 | d = nsavestr(tokenbuf,len); |
378cc40b |
1467 | get_repl: |
1468 | s = scanstr(s); |
a687059c |
1469 | if (s >= bufend) { |
1470 | yyerror("Substitution replacement not terminated"); |
1471 | yylval.arg = Nullarg; |
1472 | return s; |
1473 | } |
378cc40b |
1474 | spat->spat_repl = yylval.arg; |
1475 | spat->spat_flags |= SPAT_ONCE; |
a687059c |
1476 | if ((spat->spat_repl[1].arg_type & A_MASK) == A_SINGLE) |
1477 | spat->spat_flags |= SPAT_CONST; |
1478 | else if ((spat->spat_repl[1].arg_type & A_MASK) == A_DOUBLE) { |
1479 | STR *tmpstr; |
1480 | register char *t; |
1481 | |
1482 | spat->spat_flags |= SPAT_CONST; |
1483 | tmpstr = spat->spat_repl[1].arg_ptr.arg_str; |
1484 | e = tmpstr->str_ptr + tmpstr->str_cur; |
1485 | for (t = tmpstr->str_ptr; t < e; t++) { |
1486 | if (*t == '$' && t[1] && index("`'&+0123456789",t[1])) |
1487 | spat->spat_flags &= ~SPAT_CONST; |
1488 | } |
1489 | } |
1490 | while (*s == 'g' || *s == 'i' || *s == 'e' || *s == 'o') { |
1491 | if (*s == 'e') { |
1492 | s++; |
1493 | if ((spat->spat_repl[1].arg_type & A_MASK) == A_DOUBLE) |
1494 | spat->spat_repl[1].arg_type = A_SINGLE; |
1495 | spat->spat_repl = fixeval(make_op(O_EVAL,2, |
1496 | spat->spat_repl, |
1497 | Nullarg, |
1498 | Nullarg)); |
1499 | spat->spat_flags &= ~SPAT_CONST; |
1500 | } |
378cc40b |
1501 | if (*s == 'g') { |
1502 | s++; |
1503 | spat->spat_flags &= ~SPAT_ONCE; |
1504 | } |
1505 | if (*s == 'i') { |
1506 | s++; |
a687059c |
1507 | sawi = TRUE; |
378cc40b |
1508 | spat->spat_flags |= SPAT_FOLD; |
a687059c |
1509 | if (!(spat->spat_flags & SPAT_SCANFIRST)) { |
1510 | str_free(spat->spat_short); /* anchored opt doesn't do */ |
1511 | spat->spat_short = Nullstr; /* case insensitive match */ |
1512 | spat->spat_slen = 0; |
1513 | } |
1514 | } |
1515 | if (*s == 'o') { |
1516 | s++; |
1517 | spat->spat_flags |= SPAT_KEEP; |
378cc40b |
1518 | } |
1519 | } |
a687059c |
1520 | if (spat->spat_short && (spat->spat_flags & SPAT_SCANFIRST)) |
1521 | fbmcompile(spat->spat_short, spat->spat_flags & SPAT_FOLD); |
378cc40b |
1522 | if (!spat->spat_runtime) { |
a687059c |
1523 | spat->spat_regexp = regcomp(d,d+len,spat->spat_flags & SPAT_FOLD,1); |
378cc40b |
1524 | hoistmust(spat); |
a687059c |
1525 | Safefree(d); |
378cc40b |
1526 | } |
1527 | yylval.arg = make_match(O_SUBST,stab2arg(A_STAB,defstab),spat); |
1528 | return s; |
1529 | } |
1530 | |
1531 | hoistmust(spat) |
1532 | register SPAT *spat; |
1533 | { |
1534 | if (spat->spat_regexp->regmust) { /* is there a better short-circuit? */ |
1535 | if (spat->spat_short && |
a687059c |
1536 | str_eq(spat->spat_short,spat->spat_regexp->regmust)) |
1537 | { |
378cc40b |
1538 | if (spat->spat_flags & SPAT_SCANFIRST) { |
1539 | str_free(spat->spat_short); |
1540 | spat->spat_short = Nullstr; |
1541 | } |
1542 | else { |
1543 | str_free(spat->spat_regexp->regmust); |
1544 | spat->spat_regexp->regmust = Nullstr; |
1545 | return; |
1546 | } |
1547 | } |
1548 | if (!spat->spat_short || /* promote the better string */ |
1549 | ((spat->spat_flags & SPAT_SCANFIRST) && |
1550 | (spat->spat_short->str_cur < spat->spat_regexp->regmust->str_cur) )){ |
1551 | str_free(spat->spat_short); /* ok if null */ |
1552 | spat->spat_short = spat->spat_regexp->regmust; |
1553 | spat->spat_regexp->regmust = Nullstr; |
1554 | spat->spat_flags |= SPAT_SCANFIRST; |
1555 | } |
1556 | } |
1557 | } |
1558 | |
1559 | char * |
a687059c |
1560 | expand_charset(s,len,retlen) |
378cc40b |
1561 | register char *s; |
a687059c |
1562 | int len; |
1563 | int *retlen; |
378cc40b |
1564 | { |
1565 | char t[512]; |
1566 | register char *d = t; |
1567 | register int i; |
a687059c |
1568 | register char *send = s + len; |
378cc40b |
1569 | |
a687059c |
1570 | while (s < send) { |
1571 | if (s[1] == '-' && s+2 < send) { |
378cc40b |
1572 | for (i = s[0]; i <= s[2]; i++) |
1573 | *d++ = i; |
1574 | s += 3; |
1575 | } |
1576 | else |
1577 | *d++ = *s++; |
1578 | } |
1579 | *d = '\0'; |
a687059c |
1580 | *retlen = d - t; |
1581 | return nsavestr(t,d-t); |
378cc40b |
1582 | } |
1583 | |
1584 | char * |
1585 | scantrans(s) |
1586 | register char *s; |
1587 | { |
1588 | ARG *arg = |
a687059c |
1589 | l(make_op(O_TRANS,2,stab2arg(A_STAB,defstab),Nullarg,Nullarg)); |
378cc40b |
1590 | register char *t; |
1591 | register char *r; |
a687059c |
1592 | register char *tbl; |
378cc40b |
1593 | register int i; |
13281fa4 |
1594 | register int j; |
a687059c |
1595 | int tlen, rlen; |
378cc40b |
1596 | |
a687059c |
1597 | Newz(803,tbl,256,char); |
378cc40b |
1598 | arg[2].arg_type = A_NULL; |
1599 | arg[2].arg_ptr.arg_cval = tbl; |
378cc40b |
1600 | s = scanstr(s); |
a687059c |
1601 | if (s >= bufend) { |
1602 | yyerror("Translation pattern not terminated"); |
1603 | yylval.arg = Nullarg; |
1604 | return s; |
1605 | } |
1606 | t = expand_charset(yylval.arg[1].arg_ptr.arg_str->str_ptr, |
1607 | yylval.arg[1].arg_ptr.arg_str->str_cur,&tlen); |
378cc40b |
1608 | free_arg(yylval.arg); |
1609 | s = scanstr(s-1); |
a687059c |
1610 | if (s >= bufend) { |
1611 | yyerror("Translation replacement not terminated"); |
1612 | yylval.arg = Nullarg; |
1613 | return s; |
1614 | } |
1615 | r = expand_charset(yylval.arg[1].arg_ptr.arg_str->str_ptr, |
1616 | yylval.arg[1].arg_ptr.arg_str->str_cur,&rlen); |
378cc40b |
1617 | free_arg(yylval.arg); |
1618 | yylval.arg = arg; |
1619 | if (!*r) { |
a687059c |
1620 | Safefree(r); |
ffed7fef |
1621 | r = t; rlen = tlen; |
378cc40b |
1622 | } |
a687059c |
1623 | for (i = 0, j = 0; i < tlen; i++,j++) { |
1624 | if (j >= rlen) |
13281fa4 |
1625 | --j; |
1626 | tbl[t[i] & 0377] = r[j]; |
378cc40b |
1627 | } |
1628 | if (r != t) |
a687059c |
1629 | Safefree(r); |
1630 | Safefree(t); |
378cc40b |
1631 | return s; |
1632 | } |
1633 | |
1634 | char * |
1635 | scanstr(s) |
1636 | register char *s; |
1637 | { |
1638 | register char term; |
1639 | register char *d; |
1640 | register ARG *arg; |
a687059c |
1641 | register char *send; |
378cc40b |
1642 | register bool makesingle = FALSE; |
1643 | register STAB *stab; |
a687059c |
1644 | bool alwaysdollar = FALSE; |
1645 | bool hereis = FALSE; |
1646 | STR *herewas; |
1647 | char *leave = "\\$@nrtfb0123456789[{]}"; /* which backslash sequences to keep */ |
1648 | int len; |
378cc40b |
1649 | |
1650 | arg = op_new(1); |
1651 | yylval.arg = arg; |
1652 | arg->arg_type = O_ITEM; |
1653 | |
1654 | switch (*s) { |
1655 | default: /* a substitution replacement */ |
1656 | arg[1].arg_type = A_DOUBLE; |
1657 | makesingle = TRUE; /* maybe disable runtime scanning */ |
1658 | term = *s; |
1659 | if (term == '\'') |
1660 | leave = Nullch; |
1661 | goto snarf_it; |
1662 | case '0': |
1663 | { |
1664 | long i; |
1665 | int shift; |
1666 | |
1667 | arg[1].arg_type = A_SINGLE; |
1668 | if (s[1] == 'x') { |
1669 | shift = 4; |
1670 | s += 2; |
1671 | } |
1672 | else if (s[1] == '.') |
1673 | goto decimal; |
1674 | else |
1675 | shift = 3; |
1676 | i = 0; |
1677 | for (;;) { |
1678 | switch (*s) { |
1679 | default: |
1680 | goto out; |
1681 | case '8': case '9': |
1682 | if (shift != 4) |
a687059c |
1683 | yyerror("Illegal octal digit"); |
378cc40b |
1684 | /* FALL THROUGH */ |
1685 | case '0': case '1': case '2': case '3': case '4': |
1686 | case '5': case '6': case '7': |
1687 | i <<= shift; |
1688 | i += *s++ & 15; |
1689 | break; |
1690 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
1691 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
1692 | if (shift != 4) |
1693 | goto out; |
1694 | i <<= 4; |
1695 | i += (*s++ & 7) + 9; |
1696 | break; |
1697 | } |
1698 | } |
1699 | out: |
a687059c |
1700 | (void)sprintf(tokenbuf,"%ld",i); |
1701 | arg[1].arg_ptr.arg_str = str_make(tokenbuf,strlen(tokenbuf)); |
663a0e37 |
1702 | #ifdef MICROPORT /* Microport 2.4 hack */ |
1703 | { double zz = str_2num(arg[1].arg_ptr.arg_str); } |
1704 | #else |
a687059c |
1705 | (void)str_2num(arg[1].arg_ptr.arg_str); |
663a0e37 |
1706 | #endif /* Microport 2.4 hack */ |
378cc40b |
1707 | } |
1708 | break; |
1709 | case '1': case '2': case '3': case '4': case '5': |
1710 | case '6': case '7': case '8': case '9': case '.': |
1711 | decimal: |
1712 | arg[1].arg_type = A_SINGLE; |
1713 | d = tokenbuf; |
1714 | while (isdigit(*s) || *s == '_') { |
1715 | if (*s == '_') |
1716 | s++; |
1717 | else |
1718 | *d++ = *s++; |
1719 | } |
a687059c |
1720 | if (*s == '.' && s[1] && index("0123456789eE ;",s[1])) { |
378cc40b |
1721 | *d++ = *s++; |
1722 | while (isdigit(*s) || *s == '_') { |
1723 | if (*s == '_') |
1724 | s++; |
1725 | else |
1726 | *d++ = *s++; |
1727 | } |
1728 | } |
a687059c |
1729 | if (*s && index("eE",*s) && index("+-0123456789",s[1])) { |
378cc40b |
1730 | *d++ = *s++; |
1731 | if (*s == '+' || *s == '-') |
1732 | *d++ = *s++; |
1733 | while (isdigit(*s)) |
1734 | *d++ = *s++; |
1735 | } |
1736 | *d = '\0'; |
a687059c |
1737 | arg[1].arg_ptr.arg_str = str_make(tokenbuf, d - tokenbuf); |
663a0e37 |
1738 | #ifdef MICROPORT /* Microport 2.4 hack */ |
1739 | { double zz = str_2num(arg[1].arg_ptr.arg_str); } |
1740 | #else |
a687059c |
1741 | (void)str_2num(arg[1].arg_ptr.arg_str); |
663a0e37 |
1742 | #endif /* Microport 2.4 hack */ |
378cc40b |
1743 | break; |
378cc40b |
1744 | case '<': |
a687059c |
1745 | if (*++s == '<') { |
1746 | hereis = TRUE; |
1747 | d = tokenbuf; |
1748 | if (!rsfp) |
1749 | *d++ = '\n'; |
1750 | if (*++s && index("`'\"",*s)) { |
1751 | term = *s++; |
1752 | s = cpytill(d,s,bufend,term,&len); |
1753 | if (s < bufend) |
1754 | s++; |
1755 | d += len; |
1756 | } |
1757 | else { |
1758 | if (*s == '\\') |
1759 | s++, term = '\''; |
1760 | else |
1761 | term = '"'; |
1762 | while (isascii(*s) && (isalpha(*s) || isdigit(*s) || *s == '_')) |
1763 | *d++ = *s++; |
1764 | } /* assuming tokenbuf won't clobber */ |
1765 | *d++ = '\n'; |
1766 | *d = '\0'; |
1767 | len = d - tokenbuf; |
1768 | d = "\n"; |
1769 | if (rsfp || !(d=ninstr(s,bufend,d,d+1))) |
1770 | herewas = str_make(s,bufend-s); |
1771 | else |
1772 | s--, herewas = str_make(s,d-s); |
1773 | s += herewas->str_cur; |
1774 | if (term == '\'') |
1775 | goto do_single; |
1776 | if (term == '`') |
1777 | goto do_back; |
1778 | goto do_double; |
1779 | } |
378cc40b |
1780 | d = tokenbuf; |
a687059c |
1781 | s = cpytill(d,s,bufend,'>',&len); |
1782 | if (s < bufend) |
378cc40b |
1783 | s++; |
1784 | if (*d == '$') d++; |
a687059c |
1785 | while (*d && |
1786 | (isalpha(*d) || isdigit(*d) || *d == '_' || *d == '\'')) |
1787 | d++; |
1788 | if (d - tokenbuf != len) { |
378cc40b |
1789 | d = tokenbuf; |
1790 | arg[1].arg_type = A_GLOB; |
a687059c |
1791 | d = nsavestr(d,len); |
378cc40b |
1792 | arg[1].arg_ptr.arg_stab = stab = genstab(); |
a687059c |
1793 | stab_io(stab) = stio_new(); |
1794 | stab_val(stab) = str_make(d,len); |
1795 | stab_val(stab)->str_u.str_hash = curstash; |
1796 | Safefree(d); |
1797 | set_csh(); |
378cc40b |
1798 | } |
1799 | else { |
1800 | d = tokenbuf; |
a687059c |
1801 | if (!len) |
1802 | (void)strcpy(d,"ARGV"); |
378cc40b |
1803 | if (*d == '$') { |
1804 | arg[1].arg_type = A_INDREAD; |
1805 | arg[1].arg_ptr.arg_stab = stabent(d+1,TRUE); |
1806 | } |
1807 | else { |
1808 | arg[1].arg_type = A_READ; |
a687059c |
1809 | if (rsfp == stdin && (strEQ(d,"stdin") || strEQ(d,"STDIN"))) |
1810 | yyerror("Can't get both program and data from <STDIN>"); |
378cc40b |
1811 | arg[1].arg_ptr.arg_stab = stabent(d,TRUE); |
a687059c |
1812 | if (!stab_io(arg[1].arg_ptr.arg_stab)) |
1813 | stab_io(arg[1].arg_ptr.arg_stab) = stio_new(); |
378cc40b |
1814 | if (strEQ(d,"ARGV")) { |
a687059c |
1815 | (void)aadd(arg[1].arg_ptr.arg_stab); |
1816 | stab_io(arg[1].arg_ptr.arg_stab)->flags |= |
378cc40b |
1817 | IOF_ARGV|IOF_START; |
1818 | } |
1819 | } |
1820 | } |
1821 | break; |
a687059c |
1822 | |
1823 | case 'q': |
1824 | s++; |
1825 | if (*s == 'q') { |
1826 | s++; |
1827 | goto do_double; |
1828 | } |
1829 | /* FALL THROUGH */ |
1830 | case '\'': |
1831 | do_single: |
1832 | term = *s; |
1833 | arg[1].arg_type = A_SINGLE; |
1834 | leave = Nullch; |
1835 | goto snarf_it; |
1836 | |
378cc40b |
1837 | case '"': |
a687059c |
1838 | do_double: |
1839 | term = *s; |
378cc40b |
1840 | arg[1].arg_type = A_DOUBLE; |
1841 | makesingle = TRUE; /* maybe disable runtime scanning */ |
a687059c |
1842 | alwaysdollar = TRUE; /* treat $) and $| as variables */ |
378cc40b |
1843 | goto snarf_it; |
1844 | case '`': |
a687059c |
1845 | do_back: |
378cc40b |
1846 | term = *s; |
a687059c |
1847 | arg[1].arg_type = A_BACKTICK; |
1848 | set_csh(); |
1849 | alwaysdollar = TRUE; /* treat $) and $| as variables */ |
378cc40b |
1850 | snarf_it: |
1851 | { |
1852 | STR *tmpstr; |
378cc40b |
1853 | char *tmps; |
1854 | |
a687059c |
1855 | multi_start = line; |
1856 | if (hereis) |
1857 | multi_open = multi_close = '<'; |
1858 | else { |
1859 | multi_open = term; |
1860 | if (tmps = index("([{< )]}> )]}>",term)) |
1861 | term = tmps[5]; |
1862 | multi_close = term; |
1863 | } |
1864 | tmpstr = Str_new(87,0); |
1865 | if (hereis) { |
1866 | term = *tokenbuf; |
1867 | if (!rsfp) { |
1868 | d = s; |
1869 | while (s < bufend && |
1870 | (*s != term || bcmp(s,tokenbuf,len) != 0) ) { |
1871 | if (*s++ == '\n') |
1872 | line++; |
1873 | } |
1874 | if (s >= bufend) { |
1875 | line = multi_start; |
1876 | fatal("EOF in string"); |
1877 | } |
1878 | str_nset(tmpstr,d+1,s-d); |
1879 | s += len - 1; |
1880 | str_ncat(herewas,s,bufend-s); |
1881 | str_replace(linestr,herewas); |
1882 | oldoldbufptr = oldbufptr = bufptr = s = str_get(linestr); |
1883 | bufend = linestr->str_ptr + linestr->str_cur; |
1884 | hereis = FALSE; |
1885 | } |
1886 | } |
1887 | else |
1888 | s = str_append_till(tmpstr,s+1,bufend,term,leave); |
1889 | while (s >= bufend) { /* multiple line string? */ |
1890 | if (!rsfp || |
1891 | !(oldoldbufptr = oldbufptr = s = str_gets(linestr, rsfp, 0))) { |
1892 | line = multi_start; |
378cc40b |
1893 | fatal("EOF in string"); |
1894 | } |
1895 | line++; |
a687059c |
1896 | if (perldb) { |
1897 | STR *str = Str_new(88,0); |
1898 | |
1899 | str_sset(str,linestr); |
1900 | astore(lineary,(int)line,str); |
1901 | } |
1902 | bufend = linestr->str_ptr + linestr->str_cur; |
1903 | if (hereis) { |
1904 | if (*s == term && bcmp(s,tokenbuf,len) == 0) { |
1905 | s = bufend - 1; |
1906 | *s = ' '; |
1907 | str_scat(linestr,herewas); |
1908 | bufend = linestr->str_ptr + linestr->str_cur; |
1909 | } |
1910 | else { |
1911 | s = bufend; |
1912 | str_scat(tmpstr,linestr); |
1913 | } |
1914 | } |
1915 | else |
1916 | s = str_append_till(tmpstr,s,bufend,term,leave); |
378cc40b |
1917 | } |
a687059c |
1918 | multi_end = line; |
378cc40b |
1919 | s++; |
a687059c |
1920 | if (tmpstr->str_cur + 5 < tmpstr->str_len) { |
1921 | tmpstr->str_len = tmpstr->str_cur + 1; |
1922 | Renew(tmpstr->str_ptr, tmpstr->str_len, char); |
1923 | } |
1924 | if ((arg[1].arg_type & A_MASK) == A_SINGLE) { |
378cc40b |
1925 | arg[1].arg_ptr.arg_str = tmpstr; |
1926 | break; |
1927 | } |
1928 | tmps = s; |
1929 | s = tmpstr->str_ptr; |
a687059c |
1930 | send = s + tmpstr->str_cur; |
1931 | while (s < send) { /* see if we can make SINGLE */ |
378cc40b |
1932 | if (*s == '\\' && s[1] && isdigit(s[1]) && !isdigit(s[2]) && |
a687059c |
1933 | !alwaysdollar ) |
378cc40b |
1934 | *s = '$'; /* grandfather \digit in subst */ |
a687059c |
1935 | if ((*s == '$' || *s == '@') && s+1 < send && |
1936 | (alwaysdollar || (s[1] != ')' && s[1] != '|'))) { |
378cc40b |
1937 | makesingle = FALSE; /* force interpretation */ |
1938 | } |
a687059c |
1939 | else if (*s == '\\' && s+1 < send) { |
378cc40b |
1940 | s++; |
1941 | } |
1942 | s++; |
1943 | } |
1944 | s = d = tmpstr->str_ptr; /* assuming shrinkage only */ |
a687059c |
1945 | while (s < send) { |
1946 | if ((*s == '$' && s+1 < send && |
1947 | (alwaysdollar || /*(*/ (s[1] != ')' && s[1] != '|')) ) || |
1948 | (*s == '@' && s+1 < send) ) { |
1949 | len = scanreg(s,bufend,tokenbuf) - s; |
1950 | if (*s == '$' || strEQ(tokenbuf,"ARGV") |
1951 | || strEQ(tokenbuf,"ENV") |
1952 | || strEQ(tokenbuf,"SIG") |
1953 | || strEQ(tokenbuf,"INC") ) |
1954 | (void)stabent(tokenbuf,TRUE); /* make sure it exists */ |
378cc40b |
1955 | while (len--) |
1956 | *d++ = *s++; |
1957 | continue; |
1958 | } |
a687059c |
1959 | else if (*s == '\\' && s+1 < send) { |
378cc40b |
1960 | s++; |
1961 | switch (*s) { |
1962 | default: |
a687059c |
1963 | if (!makesingle && (!leave || (*s && index(leave,*s)))) |
378cc40b |
1964 | *d++ = '\\'; |
1965 | *d++ = *s++; |
1966 | continue; |
1967 | case '0': case '1': case '2': case '3': |
1968 | case '4': case '5': case '6': case '7': |
1969 | *d = *s++ - '0'; |
a687059c |
1970 | if (s < send && *s && index("01234567",*s)) { |
378cc40b |
1971 | *d <<= 3; |
1972 | *d += *s++ - '0'; |
1973 | } |
a687059c |
1974 | if (s < send && *s && index("01234567",*s)) { |
378cc40b |
1975 | *d <<= 3; |
1976 | *d += *s++ - '0'; |
1977 | } |
1978 | d++; |
1979 | continue; |
1980 | case 'b': |
1981 | *d++ = '\b'; |
1982 | break; |
1983 | case 'n': |
1984 | *d++ = '\n'; |
1985 | break; |
1986 | case 'r': |
1987 | *d++ = '\r'; |
1988 | break; |
1989 | case 'f': |
1990 | *d++ = '\f'; |
1991 | break; |
1992 | case 't': |
1993 | *d++ = '\t'; |
1994 | break; |
1995 | } |
1996 | s++; |
1997 | continue; |
1998 | } |
1999 | *d++ = *s++; |
2000 | } |
2001 | *d = '\0'; |
2002 | |
a687059c |
2003 | if ((arg[1].arg_type & A_MASK) == A_DOUBLE && makesingle) |
2004 | arg[1].arg_type = A_SINGLE; /* now we can optimize on it */ |
2005 | |
2006 | tmpstr->str_u.str_hash = curstash; /* so interp knows package */ |
378cc40b |
2007 | |
a687059c |
2008 | tmpstr->str_cur = d - tmpstr->str_ptr; |
378cc40b |
2009 | arg[1].arg_ptr.arg_str = tmpstr; |
2010 | s = tmps; |
2011 | break; |
2012 | } |
2013 | } |
a687059c |
2014 | if (hereis) |
2015 | str_free(herewas); |
378cc40b |
2016 | return s; |
2017 | } |
2018 | |
2019 | FCMD * |
2020 | load_format() |
2021 | { |
2022 | FCMD froot; |
2023 | FCMD *flinebeg; |
2024 | register FCMD *fprev = &froot; |
2025 | register FCMD *fcmd; |
2026 | register char *s; |
2027 | register char *t; |
a687059c |
2028 | register STR *str; |
378cc40b |
2029 | bool noblank; |
a687059c |
2030 | bool repeater; |
378cc40b |
2031 | |
a687059c |
2032 | Zero(&froot, 1, FCMD); |
2033 | while ((s = str_gets(linestr,rsfp, 0)) != Nullch) { |
378cc40b |
2034 | line++; |
a687059c |
2035 | if (perldb) { |
2036 | STR *tmpstr = Str_new(89,0); |
2037 | |
2038 | str_sset(tmpstr,linestr); |
2039 | astore(lineary,(int)line,tmpstr); |
2040 | } |
2041 | bufend = linestr->str_ptr + linestr->str_cur; |
378cc40b |
2042 | if (strEQ(s,".\n")) { |
2043 | bufptr = s; |
2044 | return froot.f_next; |
2045 | } |
2046 | if (*s == '#') |
2047 | continue; |
2048 | flinebeg = Nullfcmd; |
2049 | noblank = FALSE; |
a687059c |
2050 | repeater = FALSE; |
2051 | while (s < bufend) { |
2052 | Newz(804,fcmd,1,FCMD); |
378cc40b |
2053 | fprev->f_next = fcmd; |
2054 | fprev = fcmd; |
a687059c |
2055 | for (t=s; t < bufend && *t != '@' && *t != '^'; t++) { |
378cc40b |
2056 | if (*t == '~') { |
2057 | noblank = TRUE; |
2058 | *t = ' '; |
a687059c |
2059 | if (t[1] == '~') { |
2060 | repeater = TRUE; |
2061 | t[1] = ' '; |
2062 | } |
378cc40b |
2063 | } |
2064 | } |
a687059c |
2065 | fcmd->f_pre = nsavestr(s, t-s); |
2066 | fcmd->f_presize = t-s; |
378cc40b |
2067 | s = t; |
a687059c |
2068 | if (s >= bufend) { |
378cc40b |
2069 | if (noblank) |
2070 | fcmd->f_flags |= FC_NOBLANK; |
a687059c |
2071 | if (repeater) |
2072 | fcmd->f_flags |= FC_REPEAT; |
378cc40b |
2073 | break; |
2074 | } |
2075 | if (!flinebeg) |
2076 | flinebeg = fcmd; /* start values here */ |
2077 | if (*s++ == '^') |
2078 | fcmd->f_flags |= FC_CHOP; /* for doing text filling */ |
2079 | switch (*s) { |
2080 | case '*': |
2081 | fcmd->f_type = F_LINES; |
2082 | *s = '\0'; |
2083 | break; |
2084 | case '<': |
2085 | fcmd->f_type = F_LEFT; |
2086 | while (*s == '<') |
2087 | s++; |
2088 | break; |
2089 | case '>': |
2090 | fcmd->f_type = F_RIGHT; |
2091 | while (*s == '>') |
2092 | s++; |
2093 | break; |
2094 | case '|': |
2095 | fcmd->f_type = F_CENTER; |
2096 | while (*s == '|') |
2097 | s++; |
2098 | break; |
2099 | default: |
2100 | fcmd->f_type = F_LEFT; |
2101 | break; |
2102 | } |
2103 | if (fcmd->f_flags & FC_CHOP && *s == '.') { |
2104 | fcmd->f_flags |= FC_MORE; |
2105 | while (*s == '.') |
2106 | s++; |
2107 | } |
2108 | fcmd->f_size = s-t; |
2109 | } |
2110 | if (flinebeg) { |
2111 | again: |
a687059c |
2112 | if ((s = str_gets(linestr, rsfp, 0)) == Nullch) |
378cc40b |
2113 | goto badform; |
2114 | line++; |
a687059c |
2115 | if (perldb) { |
2116 | STR *tmpstr = Str_new(90,0); |
2117 | |
2118 | str_sset(tmpstr,linestr); |
2119 | astore(lineary,(int)line,tmpstr); |
2120 | } |
2121 | if (strEQ(s,".\n")) { |
2122 | bufptr = s; |
378cc40b |
2123 | yyerror("Missing values line"); |
2124 | return froot.f_next; |
2125 | } |
a687059c |
2126 | if (*s == '#') |
378cc40b |
2127 | goto again; |
a687059c |
2128 | bufend = linestr->str_ptr + linestr->str_cur; |
2129 | str = flinebeg->f_unparsed = Str_new(91,bufend - bufptr); |
2130 | str->str_u.str_hash = curstash; |
2131 | str_nset(str,"(",1); |
2132 | flinebeg->f_line = line; |
2133 | if (!flinebeg->f_next->f_type || index(linestr->str_ptr, ',')) { |
2134 | str_scat(str,linestr); |
2135 | str_ncat(str,",$$);",5); |
2136 | } |
2137 | else { |
2138 | while (s < bufend && isspace(*s)) |
2139 | s++; |
2140 | t = s; |
2141 | while (s < bufend) { |
2142 | switch (*s) { |
2143 | case ' ': case '\t': case '\n': case ';': |
2144 | str_ncat(str, t, s - t); |
2145 | str_ncat(str, "," ,1); |
2146 | while (s < bufend && (isspace(*s) || *s == ';')) |
2147 | s++; |
2148 | t = s; |
2149 | break; |
2150 | case '$': |
2151 | str_ncat(str, t, s - t); |
2152 | t = s; |
2153 | s = scanreg(s,bufend,tokenbuf); |
2154 | str_ncat(str, t, s - t); |
2155 | t = s; |
2156 | if (s < bufend && *s && index("$'\"",*s)) |
2157 | str_ncat(str, ",", 1); |
2158 | break; |
2159 | case '"': case '\'': |
2160 | str_ncat(str, t, s - t); |
2161 | t = s; |
2162 | s++; |
2163 | while (s < bufend && (*s != *t || s[-1] == '\\')) |
2164 | s++; |
2165 | if (s < bufend) |
2166 | s++; |
2167 | str_ncat(str, t, s - t); |
2168 | t = s; |
2169 | if (s < bufend && *s && index("$'\"",*s)) |
2170 | str_ncat(str, ",", 1); |
2171 | break; |
2172 | default: |
2173 | yyerror("Please use commas to separate fields"); |
378cc40b |
2174 | } |
378cc40b |
2175 | } |
a687059c |
2176 | str_ncat(str,"$$);",4); |
378cc40b |
2177 | } |
378cc40b |
2178 | } |
2179 | } |
2180 | badform: |
2181 | bufptr = str_get(linestr); |
2182 | yyerror("Format not terminated"); |
2183 | return froot.f_next; |
2184 | } |
a687059c |
2185 | |
2186 | set_csh() |
2187 | { |
ae986130 |
2188 | #ifdef CSH |
2189 | if (!cshlen) |
2190 | cshlen = strlen(cshname); |
2191 | #endif |
a687059c |
2192 | } |