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2b317908 |
1 | /* $RCSfile: a2py.c,v $$Revision: 4.0.1.1 $$Date: 91/06/07 12:12:59 $ |
a687059c |
2 | * |
2b317908 |
3 | * Copyright (c) 1991, Larry Wall |
a687059c |
4 | * |
2b317908 |
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. |
8d063cd8 |
7 | * |
8 | * $Log: a2py.c,v $ |
2b317908 |
9 | * Revision 4.0.1.1 91/06/07 12:12:59 lwall |
10 | * patch4: new copyright notice |
11 | * |
fe14fcc3 |
12 | * Revision 4.0 91/03/20 01:57:26 lwall |
13 | * 4.0 baseline. |
8d063cd8 |
14 | * |
15 | */ |
16 | |
39c3038c |
17 | #ifdef MSDOS |
18 | #include "../patchlev.h" |
19 | #endif |
8d063cd8 |
20 | #include "util.h" |
21 | char *index(); |
22 | |
23 | char *filename; |
39c3038c |
24 | char *myname; |
8d063cd8 |
25 | |
378cc40b |
26 | int checkers = 0; |
a687059c |
27 | STR *walk(); |
378cc40b |
28 | |
39c3038c |
29 | #ifdef MSDOS |
30 | usage() |
31 | { |
32 | printf("\nThis is the AWK to PERL translator, version 3.0, patchlevel %d\n", PATCHLEVEL); |
33 | printf("\nUsage: %s [-D<number>] [-F<char>] [-n<fieldlist>] [-<number>] filename\n", myname); |
34 | printf("\n -D<number> sets debugging flags." |
35 | "\n -F<character> the awk script to translate is always invoked with" |
36 | "\n this -F switch." |
37 | "\n -n<fieldlist> specifies the names of the input fields if input does" |
38 | "\n not have to be split into an array." |
39 | "\n -<number> causes a2p to assume that input will always have that" |
40 | "\n many fields.\n"); |
41 | exit(1); |
42 | } |
43 | #endif |
8d063cd8 |
44 | main(argc,argv,env) |
45 | register int argc; |
46 | register char **argv; |
47 | register char **env; |
48 | { |
49 | register STR *str; |
50 | register char *s; |
51 | int i; |
8d063cd8 |
52 | STR *tmpstr; |
53 | |
39c3038c |
54 | myname = argv[0]; |
8d063cd8 |
55 | linestr = str_new(80); |
56 | str = str_new(0); /* first used for -I flags */ |
57 | for (argc--,argv++; argc; argc--,argv++) { |
58 | if (argv[0][0] != '-' || !argv[0][1]) |
59 | break; |
60 | reswitch: |
61 | switch (argv[0][1]) { |
62 | #ifdef DEBUGGING |
63 | case 'D': |
64 | debug = atoi(argv[0]+2); |
65 | #ifdef YYDEBUG |
66 | yydebug = (debug & 1); |
67 | #endif |
68 | break; |
69 | #endif |
70 | case '0': case '1': case '2': case '3': case '4': |
71 | case '5': case '6': case '7': case '8': case '9': |
72 | maxfld = atoi(argv[0]+1); |
73 | absmaxfld = TRUE; |
74 | break; |
75 | case 'F': |
76 | fswitch = argv[0][2]; |
77 | break; |
78 | case 'n': |
79 | namelist = savestr(argv[0]+2); |
80 | break; |
81 | case '-': |
82 | argc--,argv++; |
83 | goto switch_end; |
84 | case 0: |
85 | break; |
86 | default: |
87 | fatal("Unrecognized switch: %s\n",argv[0]); |
39c3038c |
88 | #ifdef MSDOS |
89 | usage(); |
90 | #endif |
8d063cd8 |
91 | } |
92 | } |
93 | switch_end: |
94 | |
95 | /* open script */ |
96 | |
39c3038c |
97 | if (argv[0] == Nullch) { |
98 | #ifdef MSDOS |
99 | if ( isatty(fileno(stdin)) ) |
100 | usage(); |
101 | #endif |
102 | argv[0] = "-"; |
103 | } |
104 | filename = savestr(argv[0]); |
105 | |
8d063cd8 |
106 | filename = savestr(argv[0]); |
107 | if (strEQ(filename,"-")) |
108 | argv[0] = ""; |
109 | if (!*argv[0]) |
110 | rsfp = stdin; |
111 | else |
112 | rsfp = fopen(argv[0],"r"); |
113 | if (rsfp == Nullfp) |
114 | fatal("Awk script \"%s\" doesn't seem to exist.\n",filename); |
115 | |
116 | /* init tokener */ |
117 | |
118 | bufptr = str_get(linestr); |
119 | symtab = hnew(); |
a687059c |
120 | curarghash = hnew(); |
8d063cd8 |
121 | |
122 | /* now parse the report spec */ |
123 | |
124 | if (yyparse()) |
125 | fatal("Translation aborted due to syntax errors.\n"); |
126 | |
127 | #ifdef DEBUGGING |
128 | if (debug & 2) { |
129 | int type, len; |
130 | |
131 | for (i=1; i<mop;) { |
132 | type = ops[i].ival; |
133 | len = type >> 8; |
134 | type &= 255; |
135 | printf("%d\t%d\t%d\t%-10s",i++,type,len,opname[type]); |
136 | if (type == OSTRING) |
137 | printf("\t\"%s\"\n",ops[i].cval),i++; |
138 | else { |
139 | while (len--) { |
140 | printf("\t%d",ops[i].ival),i++; |
141 | } |
142 | putchar('\n'); |
143 | } |
144 | } |
145 | } |
146 | if (debug & 8) |
147 | dump(root); |
148 | #endif |
149 | |
150 | /* first pass to look for numeric variables */ |
151 | |
152 | prewalk(0,0,root,&i); |
153 | |
154 | /* second pass to produce new program */ |
155 | |
a687059c |
156 | tmpstr = walk(0,0,root,&i,P_MIN); |
157 | str = str_make("#!"); |
158 | str_cat(str, BIN); |
159 | str_cat(str, "/perl\neval \"exec "); |
160 | str_cat(str, BIN); |
161 | str_cat(str, "/perl -S $0 $*\"\n\ |
378cc40b |
162 | if $running_under_some_shell;\n\ |
163 | # this emulates #! processing on NIH machines.\n\ |
164 | # (remove #! line above if indigestible)\n\n"); |
a559c259 |
165 | str_cat(str, |
166 | "eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_]+=)(.*)/ && shift;\n"); |
167 | str_cat(str, |
168 | " # process any FOO=bar switches\n\n"); |
8d063cd8 |
169 | if (do_opens && opens) { |
170 | str_scat(str,opens); |
171 | str_free(opens); |
172 | str_cat(str,"\n"); |
173 | } |
174 | str_scat(str,tmpstr); |
175 | str_free(tmpstr); |
176 | #ifdef DEBUGGING |
177 | if (!(debug & 16)) |
178 | #endif |
179 | fixup(str); |
180 | putlines(str); |
378cc40b |
181 | if (checkers) { |
182 | fprintf(stderr, |
183 | "Please check my work on the %d line%s I've marked with \"#???\".\n", |
184 | checkers, checkers == 1 ? "" : "s" ); |
185 | fprintf(stderr, |
186 | "The operation I've selected may be wrong for the operand types.\n"); |
187 | } |
8d063cd8 |
188 | exit(0); |
189 | } |
190 | |
191 | #define RETURN(retval) return (bufptr = s,retval) |
192 | #define XTERM(retval) return (expectterm = TRUE,bufptr = s,retval) |
193 | #define XOP(retval) return (expectterm = FALSE,bufptr = s,retval) |
a687059c |
194 | #define ID(x) return (yylval=string(x,0),expectterm = FALSE,bufptr = s,idtype) |
195 | |
196 | int idtype; |
8d063cd8 |
197 | |
198 | yylex() |
199 | { |
200 | register char *s = bufptr; |
201 | register char *d; |
202 | register int tmp; |
203 | |
204 | retry: |
205 | #ifdef YYDEBUG |
206 | if (yydebug) |
207 | if (index(s,'\n')) |
208 | fprintf(stderr,"Tokener at %s",s); |
209 | else |
210 | fprintf(stderr,"Tokener at %s\n",s); |
211 | #endif |
212 | switch (*s) { |
213 | default: |
214 | fprintf(stderr, |
215 | "Unrecognized character %c in file %s line %d--ignoring.\n", |
216 | *s++,filename,line); |
217 | goto retry; |
218 | case '\\': |
219 | case 0: |
220 | s = str_get(linestr); |
221 | *s = '\0'; |
222 | if (!rsfp) |
223 | RETURN(0); |
224 | line++; |
225 | if ((s = str_gets(linestr, rsfp)) == Nullch) { |
226 | if (rsfp != stdin) |
227 | fclose(rsfp); |
228 | rsfp = Nullfp; |
229 | s = str_get(linestr); |
230 | RETURN(0); |
231 | } |
232 | goto retry; |
233 | case ' ': case '\t': |
234 | s++; |
235 | goto retry; |
236 | case '\n': |
237 | *s = '\0'; |
238 | XTERM(NEWLINE); |
239 | case '#': |
240 | yylval = string(s,0); |
241 | *s = '\0'; |
242 | XTERM(COMMENT); |
243 | case ';': |
244 | tmp = *s++; |
245 | if (*s == '\n') { |
246 | s++; |
247 | XTERM(SEMINEW); |
248 | } |
249 | XTERM(tmp); |
250 | case '(': |
a687059c |
251 | tmp = *s++; |
252 | XTERM(tmp); |
8d063cd8 |
253 | case '{': |
254 | case '[': |
255 | case ')': |
256 | case ']': |
a687059c |
257 | case '?': |
258 | case ':': |
8d063cd8 |
259 | tmp = *s++; |
260 | XOP(tmp); |
261 | case 127: |
262 | s++; |
263 | XTERM('}'); |
264 | case '}': |
265 | for (d = s + 1; isspace(*d); d++) ; |
266 | if (!*d) |
267 | s = d - 1; |
268 | *s = 127; |
269 | XTERM(';'); |
270 | case ',': |
271 | tmp = *s++; |
272 | XTERM(tmp); |
273 | case '~': |
274 | s++; |
378cc40b |
275 | yylval = string("~",1); |
8d063cd8 |
276 | XTERM(MATCHOP); |
277 | case '+': |
278 | case '-': |
279 | if (s[1] == *s) { |
280 | s++; |
281 | if (*s++ == '+') |
282 | XTERM(INCR); |
283 | else |
284 | XTERM(DECR); |
285 | } |
286 | /* FALL THROUGH */ |
287 | case '*': |
288 | case '%': |
a687059c |
289 | case '^': |
8d063cd8 |
290 | tmp = *s++; |
291 | if (*s == '=') { |
a687059c |
292 | if (tmp == '^') |
293 | yylval = string("**=",3); |
294 | else |
295 | yylval = string(s-1,2); |
8d063cd8 |
296 | s++; |
297 | XTERM(ASGNOP); |
298 | } |
299 | XTERM(tmp); |
300 | case '&': |
301 | s++; |
302 | tmp = *s++; |
303 | if (tmp == '&') |
304 | XTERM(ANDAND); |
305 | s--; |
306 | XTERM('&'); |
307 | case '|': |
308 | s++; |
309 | tmp = *s++; |
310 | if (tmp == '|') |
311 | XTERM(OROR); |
312 | s--; |
a687059c |
313 | while (*s == ' ' || *s == '\t') |
314 | s++; |
315 | if (strnEQ(s,"getline",7)) |
316 | XTERM('p'); |
317 | else |
318 | XTERM('|'); |
8d063cd8 |
319 | case '=': |
320 | s++; |
321 | tmp = *s++; |
322 | if (tmp == '=') { |
323 | yylval = string("==",2); |
324 | XTERM(RELOP); |
325 | } |
326 | s--; |
327 | yylval = string("=",1); |
328 | XTERM(ASGNOP); |
329 | case '!': |
330 | s++; |
331 | tmp = *s++; |
332 | if (tmp == '=') { |
333 | yylval = string("!=",2); |
334 | XTERM(RELOP); |
335 | } |
336 | if (tmp == '~') { |
337 | yylval = string("!~",2); |
338 | XTERM(MATCHOP); |
339 | } |
340 | s--; |
341 | XTERM(NOT); |
342 | case '<': |
343 | s++; |
344 | tmp = *s++; |
345 | if (tmp == '=') { |
346 | yylval = string("<=",2); |
347 | XTERM(RELOP); |
348 | } |
349 | s--; |
a687059c |
350 | XTERM('<'); |
8d063cd8 |
351 | case '>': |
352 | s++; |
353 | tmp = *s++; |
378cc40b |
354 | if (tmp == '>') { |
355 | yylval = string(">>",2); |
356 | XTERM(GRGR); |
357 | } |
8d063cd8 |
358 | if (tmp == '=') { |
359 | yylval = string(">=",2); |
360 | XTERM(RELOP); |
361 | } |
362 | s--; |
a687059c |
363 | XTERM('>'); |
8d063cd8 |
364 | |
365 | #define SNARFWORD \ |
366 | d = tokenbuf; \ |
367 | while (isalpha(*s) || isdigit(*s) || *s == '_') \ |
368 | *d++ = *s++; \ |
369 | *d = '\0'; \ |
a687059c |
370 | d = tokenbuf; \ |
371 | if (*s == '(') \ |
372 | idtype = USERFUN; \ |
373 | else \ |
374 | idtype = VAR; |
8d063cd8 |
375 | |
376 | case '$': |
377 | s++; |
378 | if (*s == '0') { |
379 | s++; |
380 | do_chop = TRUE; |
381 | need_entire = TRUE; |
a687059c |
382 | idtype = VAR; |
8d063cd8 |
383 | ID("0"); |
384 | } |
385 | do_split = TRUE; |
386 | if (isdigit(*s)) { |
387 | for (d = s; isdigit(*s); s++) ; |
388 | yylval = string(d,s-d); |
389 | tmp = atoi(d); |
390 | if (tmp > maxfld) |
391 | maxfld = tmp; |
392 | XOP(FIELD); |
393 | } |
394 | split_to_array = set_array_base = TRUE; |
395 | XOP(VFIELD); |
396 | |
397 | case '/': /* may either be division or pattern */ |
398 | if (expectterm) { |
399 | s = scanpat(s); |
400 | XTERM(REGEX); |
401 | } |
402 | tmp = *s++; |
403 | if (*s == '=') { |
404 | yylval = string("/=",2); |
405 | s++; |
406 | XTERM(ASGNOP); |
407 | } |
408 | XTERM(tmp); |
409 | |
410 | case '0': case '1': case '2': case '3': case '4': |
a687059c |
411 | case '5': case '6': case '7': case '8': case '9': case '.': |
8d063cd8 |
412 | s = scannum(s); |
413 | XOP(NUMBER); |
414 | case '"': |
415 | s++; |
416 | s = cpy2(tokenbuf,s,s[-1]); |
417 | if (!*s) |
418 | fatal("String not terminated:\n%s",str_get(linestr)); |
419 | s++; |
420 | yylval = string(tokenbuf,0); |
421 | XOP(STRING); |
422 | |
423 | case 'a': case 'A': |
424 | SNARFWORD; |
a687059c |
425 | if (strEQ(d,"ARGC")) |
426 | set_array_base = TRUE; |
427 | if (strEQ(d,"ARGV")) { |
428 | yylval=numary(string("ARGV",0)); |
429 | XOP(VAR); |
430 | } |
431 | if (strEQ(d,"atan2")) { |
432 | yylval = OATAN2; |
433 | XTERM(FUNN); |
434 | } |
8d063cd8 |
435 | ID(d); |
436 | case 'b': case 'B': |
437 | SNARFWORD; |
438 | if (strEQ(d,"break")) |
439 | XTERM(BREAK); |
440 | if (strEQ(d,"BEGIN")) |
441 | XTERM(BEGIN); |
442 | ID(d); |
443 | case 'c': case 'C': |
444 | SNARFWORD; |
445 | if (strEQ(d,"continue")) |
446 | XTERM(CONTINUE); |
a687059c |
447 | if (strEQ(d,"cos")) { |
448 | yylval = OCOS; |
449 | XTERM(FUN1); |
450 | } |
451 | if (strEQ(d,"close")) { |
452 | do_fancy_opens = 1; |
453 | yylval = OCLOSE; |
454 | XTERM(FUN1); |
455 | } |
456 | if (strEQ(d,"chdir")) |
457 | *d = toupper(*d); |
458 | else if (strEQ(d,"crypt")) |
459 | *d = toupper(*d); |
460 | else if (strEQ(d,"chop")) |
461 | *d = toupper(*d); |
462 | else if (strEQ(d,"chmod")) |
463 | *d = toupper(*d); |
464 | else if (strEQ(d,"chown")) |
465 | *d = toupper(*d); |
8d063cd8 |
466 | ID(d); |
467 | case 'd': case 'D': |
468 | SNARFWORD; |
a687059c |
469 | if (strEQ(d,"do")) |
470 | XTERM(DO); |
471 | if (strEQ(d,"delete")) |
472 | XTERM(DELETE); |
473 | if (strEQ(d,"die")) |
474 | *d = toupper(*d); |
8d063cd8 |
475 | ID(d); |
476 | case 'e': case 'E': |
477 | SNARFWORD; |
478 | if (strEQ(d,"END")) |
479 | XTERM(END); |
480 | if (strEQ(d,"else")) |
481 | XTERM(ELSE); |
482 | if (strEQ(d,"exit")) { |
483 | saw_line_op = TRUE; |
484 | XTERM(EXIT); |
485 | } |
486 | if (strEQ(d,"exp")) { |
487 | yylval = OEXP; |
488 | XTERM(FUN1); |
489 | } |
a687059c |
490 | if (strEQ(d,"elsif")) |
491 | *d = toupper(*d); |
492 | else if (strEQ(d,"eq")) |
493 | *d = toupper(*d); |
494 | else if (strEQ(d,"eval")) |
495 | *d = toupper(*d); |
496 | else if (strEQ(d,"eof")) |
497 | *d = toupper(*d); |
498 | else if (strEQ(d,"each")) |
499 | *d = toupper(*d); |
500 | else if (strEQ(d,"exec")) |
501 | *d = toupper(*d); |
8d063cd8 |
502 | ID(d); |
503 | case 'f': case 'F': |
504 | SNARFWORD; |
505 | if (strEQ(d,"FS")) { |
506 | saw_FS++; |
507 | if (saw_FS == 1 && in_begin) { |
508 | for (d = s; *d && isspace(*d); d++) ; |
509 | if (*d == '=') { |
510 | for (d++; *d && isspace(*d); d++) ; |
511 | if (*d == '"' && d[2] == '"') |
512 | const_FS = d[1]; |
513 | } |
514 | } |
515 | ID(tokenbuf); |
516 | } |
8d063cd8 |
517 | if (strEQ(d,"for")) |
518 | XTERM(FOR); |
a687059c |
519 | else if (strEQ(d,"function")) |
520 | XTERM(FUNCTION); |
521 | if (strEQ(d,"FILENAME")) |
522 | d = "ARGV"; |
523 | if (strEQ(d,"foreach")) |
524 | *d = toupper(*d); |
525 | else if (strEQ(d,"format")) |
526 | *d = toupper(*d); |
527 | else if (strEQ(d,"fork")) |
528 | *d = toupper(*d); |
529 | else if (strEQ(d,"fh")) |
530 | *d = toupper(*d); |
8d063cd8 |
531 | ID(d); |
532 | case 'g': case 'G': |
533 | SNARFWORD; |
534 | if (strEQ(d,"getline")) |
535 | XTERM(GETLINE); |
a687059c |
536 | if (strEQ(d,"gsub")) |
537 | XTERM(GSUB); |
538 | if (strEQ(d,"ge")) |
539 | *d = toupper(*d); |
540 | else if (strEQ(d,"gt")) |
541 | *d = toupper(*d); |
542 | else if (strEQ(d,"goto")) |
543 | *d = toupper(*d); |
544 | else if (strEQ(d,"gmtime")) |
545 | *d = toupper(*d); |
8d063cd8 |
546 | ID(d); |
547 | case 'h': case 'H': |
548 | SNARFWORD; |
a687059c |
549 | if (strEQ(d,"hex")) |
550 | *d = toupper(*d); |
8d063cd8 |
551 | ID(d); |
552 | case 'i': case 'I': |
553 | SNARFWORD; |
554 | if (strEQ(d,"if")) |
555 | XTERM(IF); |
556 | if (strEQ(d,"in")) |
557 | XTERM(IN); |
558 | if (strEQ(d,"index")) { |
559 | set_array_base = TRUE; |
560 | XTERM(INDEX); |
561 | } |
562 | if (strEQ(d,"int")) { |
563 | yylval = OINT; |
564 | XTERM(FUN1); |
565 | } |
566 | ID(d); |
567 | case 'j': case 'J': |
568 | SNARFWORD; |
a687059c |
569 | if (strEQ(d,"join")) |
570 | *d = toupper(*d); |
8d063cd8 |
571 | ID(d); |
572 | case 'k': case 'K': |
573 | SNARFWORD; |
a687059c |
574 | if (strEQ(d,"keys")) |
575 | *d = toupper(*d); |
576 | else if (strEQ(d,"kill")) |
577 | *d = toupper(*d); |
8d063cd8 |
578 | ID(d); |
579 | case 'l': case 'L': |
580 | SNARFWORD; |
581 | if (strEQ(d,"length")) { |
582 | yylval = OLENGTH; |
583 | XTERM(FUN1); |
584 | } |
585 | if (strEQ(d,"log")) { |
586 | yylval = OLOG; |
587 | XTERM(FUN1); |
588 | } |
a687059c |
589 | if (strEQ(d,"last")) |
590 | *d = toupper(*d); |
591 | else if (strEQ(d,"local")) |
592 | *d = toupper(*d); |
593 | else if (strEQ(d,"lt")) |
594 | *d = toupper(*d); |
595 | else if (strEQ(d,"le")) |
596 | *d = toupper(*d); |
597 | else if (strEQ(d,"locatime")) |
598 | *d = toupper(*d); |
599 | else if (strEQ(d,"link")) |
600 | *d = toupper(*d); |
8d063cd8 |
601 | ID(d); |
602 | case 'm': case 'M': |
603 | SNARFWORD; |
a687059c |
604 | if (strEQ(d,"match")) { |
605 | set_array_base = TRUE; |
606 | XTERM(MATCH); |
607 | } |
608 | if (strEQ(d,"m")) |
609 | *d = toupper(*d); |
8d063cd8 |
610 | ID(d); |
611 | case 'n': case 'N': |
612 | SNARFWORD; |
613 | if (strEQ(d,"NF")) |
87250799 |
614 | do_chop = do_split = split_to_array = set_array_base = TRUE; |
8d063cd8 |
615 | if (strEQ(d,"next")) { |
616 | saw_line_op = TRUE; |
617 | XTERM(NEXT); |
618 | } |
a687059c |
619 | if (strEQ(d,"ne")) |
620 | *d = toupper(*d); |
8d063cd8 |
621 | ID(d); |
622 | case 'o': case 'O': |
623 | SNARFWORD; |
624 | if (strEQ(d,"ORS")) { |
625 | saw_ORS = TRUE; |
a687059c |
626 | d = "\\"; |
8d063cd8 |
627 | } |
628 | if (strEQ(d,"OFS")) { |
629 | saw_OFS = TRUE; |
a687059c |
630 | d = ","; |
8d063cd8 |
631 | } |
632 | if (strEQ(d,"OFMT")) { |
a687059c |
633 | d = "#"; |
8d063cd8 |
634 | } |
a687059c |
635 | if (strEQ(d,"open")) |
636 | *d = toupper(*d); |
637 | else if (strEQ(d,"ord")) |
638 | *d = toupper(*d); |
639 | else if (strEQ(d,"oct")) |
640 | *d = toupper(*d); |
8d063cd8 |
641 | ID(d); |
642 | case 'p': case 'P': |
643 | SNARFWORD; |
644 | if (strEQ(d,"print")) { |
645 | XTERM(PRINT); |
646 | } |
647 | if (strEQ(d,"printf")) { |
648 | XTERM(PRINTF); |
649 | } |
a687059c |
650 | if (strEQ(d,"push")) |
651 | *d = toupper(*d); |
652 | else if (strEQ(d,"pop")) |
653 | *d = toupper(*d); |
8d063cd8 |
654 | ID(d); |
655 | case 'q': case 'Q': |
656 | SNARFWORD; |
657 | ID(d); |
658 | case 'r': case 'R': |
659 | SNARFWORD; |
660 | if (strEQ(d,"RS")) { |
a687059c |
661 | d = "/"; |
8d063cd8 |
662 | saw_RS = TRUE; |
663 | } |
a687059c |
664 | if (strEQ(d,"rand")) { |
665 | yylval = ORAND; |
666 | XTERM(FUN1); |
667 | } |
668 | if (strEQ(d,"return")) |
669 | XTERM(RET); |
670 | if (strEQ(d,"reset")) |
671 | *d = toupper(*d); |
672 | else if (strEQ(d,"redo")) |
673 | *d = toupper(*d); |
674 | else if (strEQ(d,"rename")) |
675 | *d = toupper(*d); |
8d063cd8 |
676 | ID(d); |
677 | case 's': case 'S': |
678 | SNARFWORD; |
679 | if (strEQ(d,"split")) { |
680 | set_array_base = TRUE; |
681 | XOP(SPLIT); |
682 | } |
683 | if (strEQ(d,"substr")) { |
684 | set_array_base = TRUE; |
685 | XTERM(SUBSTR); |
686 | } |
a687059c |
687 | if (strEQ(d,"sub")) |
688 | XTERM(SUB); |
8d063cd8 |
689 | if (strEQ(d,"sprintf")) |
690 | XTERM(SPRINTF); |
691 | if (strEQ(d,"sqrt")) { |
692 | yylval = OSQRT; |
693 | XTERM(FUN1); |
694 | } |
a687059c |
695 | if (strEQ(d,"SUBSEP")) { |
696 | d = ";"; |
697 | } |
698 | if (strEQ(d,"sin")) { |
699 | yylval = OSIN; |
700 | XTERM(FUN1); |
701 | } |
702 | if (strEQ(d,"srand")) { |
703 | yylval = OSRAND; |
704 | XTERM(FUN1); |
705 | } |
706 | if (strEQ(d,"system")) { |
707 | yylval = OSYSTEM; |
708 | XTERM(FUN1); |
709 | } |
710 | if (strEQ(d,"s")) |
711 | *d = toupper(*d); |
712 | else if (strEQ(d,"shift")) |
713 | *d = toupper(*d); |
714 | else if (strEQ(d,"select")) |
715 | *d = toupper(*d); |
716 | else if (strEQ(d,"seek")) |
717 | *d = toupper(*d); |
718 | else if (strEQ(d,"stat")) |
719 | *d = toupper(*d); |
720 | else if (strEQ(d,"study")) |
721 | *d = toupper(*d); |
722 | else if (strEQ(d,"sleep")) |
723 | *d = toupper(*d); |
724 | else if (strEQ(d,"symlink")) |
725 | *d = toupper(*d); |
726 | else if (strEQ(d,"sort")) |
727 | *d = toupper(*d); |
8d063cd8 |
728 | ID(d); |
729 | case 't': case 'T': |
730 | SNARFWORD; |
a687059c |
731 | if (strEQ(d,"tr")) |
732 | *d = toupper(*d); |
733 | else if (strEQ(d,"tell")) |
734 | *d = toupper(*d); |
735 | else if (strEQ(d,"time")) |
736 | *d = toupper(*d); |
737 | else if (strEQ(d,"times")) |
738 | *d = toupper(*d); |
8d063cd8 |
739 | ID(d); |
740 | case 'u': case 'U': |
741 | SNARFWORD; |
a687059c |
742 | if (strEQ(d,"until")) |
743 | *d = toupper(*d); |
744 | else if (strEQ(d,"unless")) |
745 | *d = toupper(*d); |
746 | else if (strEQ(d,"umask")) |
747 | *d = toupper(*d); |
748 | else if (strEQ(d,"unshift")) |
749 | *d = toupper(*d); |
750 | else if (strEQ(d,"unlink")) |
751 | *d = toupper(*d); |
752 | else if (strEQ(d,"utime")) |
753 | *d = toupper(*d); |
8d063cd8 |
754 | ID(d); |
755 | case 'v': case 'V': |
756 | SNARFWORD; |
a687059c |
757 | if (strEQ(d,"values")) |
758 | *d = toupper(*d); |
8d063cd8 |
759 | ID(d); |
760 | case 'w': case 'W': |
761 | SNARFWORD; |
762 | if (strEQ(d,"while")) |
763 | XTERM(WHILE); |
a687059c |
764 | if (strEQ(d,"write")) |
765 | *d = toupper(*d); |
766 | else if (strEQ(d,"wait")) |
767 | *d = toupper(*d); |
8d063cd8 |
768 | ID(d); |
769 | case 'x': case 'X': |
770 | SNARFWORD; |
a687059c |
771 | if (strEQ(d,"x")) |
772 | *d = toupper(*d); |
8d063cd8 |
773 | ID(d); |
774 | case 'y': case 'Y': |
775 | SNARFWORD; |
a687059c |
776 | if (strEQ(d,"y")) |
777 | *d = toupper(*d); |
8d063cd8 |
778 | ID(d); |
779 | case 'z': case 'Z': |
780 | SNARFWORD; |
781 | ID(d); |
782 | } |
783 | } |
784 | |
785 | char * |
786 | scanpat(s) |
787 | register char *s; |
788 | { |
789 | register char *d; |
790 | |
791 | switch (*s++) { |
792 | case '/': |
793 | break; |
794 | default: |
795 | fatal("Search pattern not found:\n%s",str_get(linestr)); |
796 | } |
378cc40b |
797 | |
798 | d = tokenbuf; |
799 | for (; *s; s++,d++) { |
800 | if (*s == '\\') { |
801 | if (s[1] == '/') |
802 | *d++ = *s++; |
803 | else if (s[1] == '\\') |
804 | *d++ = *s++; |
805 | } |
806 | else if (*s == '[') { |
807 | *d++ = *s++; |
808 | do { |
809 | if (*s == '\\' && s[1]) |
810 | *d++ = *s++; |
811 | if (*s == '/' || (*s == '-' && s[1] == ']')) |
812 | *d++ = '\\'; |
813 | *d++ = *s++; |
814 | } while (*s && *s != ']'); |
815 | } |
816 | else if (*s == '/') |
817 | break; |
818 | *d = *s; |
819 | } |
820 | *d = '\0'; |
821 | |
8d063cd8 |
822 | if (!*s) |
823 | fatal("Search pattern not terminated:\n%s",str_get(linestr)); |
824 | s++; |
825 | yylval = string(tokenbuf,0); |
826 | return s; |
827 | } |
828 | |
829 | yyerror(s) |
830 | char *s; |
831 | { |
832 | fprintf(stderr,"%s in file %s at line %d\n", |
833 | s,filename,line); |
834 | } |
835 | |
836 | char * |
837 | scannum(s) |
838 | register char *s; |
839 | { |
840 | register char *d; |
841 | |
842 | switch (*s) { |
843 | case '1': case '2': case '3': case '4': case '5': |
844 | case '6': case '7': case '8': case '9': case '0' : case '.': |
845 | d = tokenbuf; |
378cc40b |
846 | while (isdigit(*s)) { |
8d063cd8 |
847 | *d++ = *s++; |
378cc40b |
848 | } |
849 | if (*s == '.' && index("0123456789eE",s[1])) { |
8d063cd8 |
850 | *d++ = *s++; |
378cc40b |
851 | while (isdigit(*s)) { |
852 | *d++ = *s++; |
853 | } |
854 | } |
855 | if (index("eE",*s) && index("+-0123456789",s[1])) { |
8d063cd8 |
856 | *d++ = *s++; |
378cc40b |
857 | if (*s == '+' || *s == '-') |
858 | *d++ = *s++; |
859 | while (isdigit(*s)) |
860 | *d++ = *s++; |
861 | } |
8d063cd8 |
862 | *d = '\0'; |
863 | yylval = string(tokenbuf,0); |
864 | break; |
865 | } |
866 | return s; |
867 | } |
868 | |
869 | string(ptr,len) |
870 | char *ptr; |
871 | { |
872 | int retval = mop; |
873 | |
874 | ops[mop++].ival = OSTRING + (1<<8); |
875 | if (!len) |
876 | len = strlen(ptr); |
877 | ops[mop].cval = safemalloc(len+1); |
878 | strncpy(ops[mop].cval,ptr,len); |
879 | ops[mop++].cval[len] = '\0'; |
a687059c |
880 | if (mop >= OPSMAX) |
881 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
882 | return retval; |
883 | } |
884 | |
885 | oper0(type) |
886 | int type; |
887 | { |
888 | int retval = mop; |
889 | |
890 | if (type > 255) |
891 | fatal("type > 255 (%d)\n",type); |
892 | ops[mop++].ival = type; |
a687059c |
893 | if (mop >= OPSMAX) |
894 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
895 | return retval; |
896 | } |
897 | |
898 | oper1(type,arg1) |
899 | int type; |
900 | int arg1; |
901 | { |
902 | int retval = mop; |
903 | |
904 | if (type > 255) |
905 | fatal("type > 255 (%d)\n",type); |
906 | ops[mop++].ival = type + (1<<8); |
907 | ops[mop++].ival = arg1; |
a687059c |
908 | if (mop >= OPSMAX) |
909 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
910 | return retval; |
911 | } |
912 | |
913 | oper2(type,arg1,arg2) |
914 | int type; |
915 | int arg1; |
916 | int arg2; |
917 | { |
918 | int retval = mop; |
919 | |
920 | if (type > 255) |
921 | fatal("type > 255 (%d)\n",type); |
922 | ops[mop++].ival = type + (2<<8); |
923 | ops[mop++].ival = arg1; |
924 | ops[mop++].ival = arg2; |
a687059c |
925 | if (mop >= OPSMAX) |
926 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
927 | return retval; |
928 | } |
929 | |
930 | oper3(type,arg1,arg2,arg3) |
931 | int type; |
932 | int arg1; |
933 | int arg2; |
934 | int arg3; |
935 | { |
936 | int retval = mop; |
937 | |
938 | if (type > 255) |
939 | fatal("type > 255 (%d)\n",type); |
940 | ops[mop++].ival = type + (3<<8); |
941 | ops[mop++].ival = arg1; |
942 | ops[mop++].ival = arg2; |
943 | ops[mop++].ival = arg3; |
a687059c |
944 | if (mop >= OPSMAX) |
945 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
946 | return retval; |
947 | } |
948 | |
949 | oper4(type,arg1,arg2,arg3,arg4) |
950 | int type; |
951 | int arg1; |
952 | int arg2; |
953 | int arg3; |
954 | int arg4; |
955 | { |
956 | int retval = mop; |
957 | |
958 | if (type > 255) |
959 | fatal("type > 255 (%d)\n",type); |
960 | ops[mop++].ival = type + (4<<8); |
961 | ops[mop++].ival = arg1; |
962 | ops[mop++].ival = arg2; |
963 | ops[mop++].ival = arg3; |
964 | ops[mop++].ival = arg4; |
a687059c |
965 | if (mop >= OPSMAX) |
966 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
967 | return retval; |
968 | } |
969 | |
970 | oper5(type,arg1,arg2,arg3,arg4,arg5) |
971 | int type; |
972 | int arg1; |
973 | int arg2; |
974 | int arg3; |
975 | int arg4; |
976 | int arg5; |
977 | { |
978 | int retval = mop; |
979 | |
980 | if (type > 255) |
981 | fatal("type > 255 (%d)\n",type); |
982 | ops[mop++].ival = type + (5<<8); |
983 | ops[mop++].ival = arg1; |
984 | ops[mop++].ival = arg2; |
985 | ops[mop++].ival = arg3; |
986 | ops[mop++].ival = arg4; |
987 | ops[mop++].ival = arg5; |
a687059c |
988 | if (mop >= OPSMAX) |
989 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
990 | return retval; |
991 | } |
992 | |
993 | int depth = 0; |
994 | |
995 | dump(branch) |
996 | int branch; |
997 | { |
998 | register int type; |
999 | register int len; |
1000 | register int i; |
1001 | |
1002 | type = ops[branch].ival; |
1003 | len = type >> 8; |
1004 | type &= 255; |
1005 | for (i=depth; i; i--) |
1006 | printf(" "); |
1007 | if (type == OSTRING) { |
1008 | printf("%-5d\"%s\"\n",branch,ops[branch+1].cval); |
1009 | } |
1010 | else { |
1011 | printf("(%-5d%s %d\n",branch,opname[type],len); |
1012 | depth++; |
1013 | for (i=1; i<=len; i++) |
1014 | dump(ops[branch+i].ival); |
1015 | depth--; |
1016 | for (i=depth; i; i--) |
1017 | printf(" "); |
1018 | printf(")\n"); |
1019 | } |
1020 | } |
1021 | |
1022 | bl(arg,maybe) |
1023 | int arg; |
1024 | int maybe; |
1025 | { |
1026 | if (!arg) |
1027 | return 0; |
1028 | else if ((ops[arg].ival & 255) != OBLOCK) |
1029 | return oper2(OBLOCK,arg,maybe); |
378cc40b |
1030 | else if ((ops[arg].ival >> 8) < 2) |
8d063cd8 |
1031 | return oper2(OBLOCK,ops[arg+1].ival,maybe); |
1032 | else |
1033 | return arg; |
1034 | } |
1035 | |
1036 | fixup(str) |
1037 | STR *str; |
1038 | { |
1039 | register char *s; |
1040 | register char *t; |
1041 | |
1042 | for (s = str->str_ptr; *s; s++) { |
1043 | if (*s == ';' && s[1] == ' ' && s[2] == '\n') { |
1044 | strcpy(s+1,s+2); |
1045 | s++; |
1046 | } |
1047 | else if (*s == '\n') { |
1048 | for (t = s+1; isspace(*t & 127); t++) ; |
1049 | t--; |
1050 | while (isspace(*t & 127) && *t != '\n') t--; |
1051 | if (*t == '\n' && t-s > 1) { |
1052 | if (s[-1] == '{') |
1053 | s--; |
1054 | strcpy(s+1,t); |
1055 | } |
1056 | s++; |
1057 | } |
1058 | } |
1059 | } |
1060 | |
1061 | putlines(str) |
1062 | STR *str; |
1063 | { |
1064 | register char *d, *s, *t, *e; |
1065 | register int pos, newpos; |
1066 | |
1067 | d = tokenbuf; |
1068 | pos = 0; |
1069 | for (s = str->str_ptr; *s; s++) { |
1070 | *d++ = *s; |
1071 | pos++; |
1072 | if (*s == '\n') { |
1073 | *d = '\0'; |
1074 | d = tokenbuf; |
1075 | pos = 0; |
1076 | putone(); |
1077 | } |
1078 | else if (*s == '\t') |
1079 | pos += 7; |
1080 | if (pos > 78) { /* split a long line? */ |
1081 | *d-- = '\0'; |
1082 | newpos = 0; |
1083 | for (t = tokenbuf; isspace(*t & 127); t++) { |
1084 | if (*t == '\t') |
1085 | newpos += 8; |
1086 | else |
1087 | newpos += 1; |
1088 | } |
1089 | e = d; |
1090 | while (d > tokenbuf && (*d != ' ' || d[-1] != ';')) |
1091 | d--; |
1092 | if (d < t+10) { |
1093 | d = e; |
1094 | while (d > tokenbuf && |
1095 | (*d != ' ' || d[-1] != '|' || d[-2] != '|') ) |
1096 | d--; |
1097 | } |
1098 | if (d < t+10) { |
1099 | d = e; |
1100 | while (d > tokenbuf && |
1101 | (*d != ' ' || d[-1] != '&' || d[-2] != '&') ) |
1102 | d--; |
1103 | } |
1104 | if (d < t+10) { |
1105 | d = e; |
1106 | while (d > tokenbuf && (*d != ' ' || d[-1] != ',')) |
1107 | d--; |
1108 | } |
1109 | if (d < t+10) { |
1110 | d = e; |
1111 | while (d > tokenbuf && *d != ' ') |
1112 | d--; |
1113 | } |
1114 | if (d > t+3) { |
fe14fcc3 |
1115 | char save[2048]; |
1116 | strcpy(save, d); |
1117 | *d = '\n'; |
1118 | d[1] = '\0'; |
8d063cd8 |
1119 | putone(); |
1120 | putchar('\n'); |
1121 | if (d[-1] != ';' && !(newpos % 4)) { |
1122 | *t++ = ' '; |
1123 | *t++ = ' '; |
1124 | newpos += 2; |
1125 | } |
fe14fcc3 |
1126 | strcpy(t,save+1); |
8d063cd8 |
1127 | newpos += strlen(t); |
1128 | d = t + strlen(t); |
1129 | pos = newpos; |
1130 | } |
1131 | else |
1132 | d = e + 1; |
1133 | } |
1134 | } |
1135 | } |
1136 | |
1137 | putone() |
1138 | { |
1139 | register char *t; |
1140 | |
1141 | for (t = tokenbuf; *t; t++) { |
1142 | *t &= 127; |
1143 | if (*t == 127) { |
1144 | *t = ' '; |
1145 | strcpy(t+strlen(t)-1, "\t#???\n"); |
378cc40b |
1146 | checkers++; |
8d063cd8 |
1147 | } |
1148 | } |
1149 | t = tokenbuf; |
1150 | if (*t == '#') { |
1151 | if (strnEQ(t,"#!/bin/awk",10) || strnEQ(t,"#! /bin/awk",11)) |
1152 | return; |
378cc40b |
1153 | if (strnEQ(t,"#!/usr/bin/awk",14) || strnEQ(t,"#! /usr/bin/awk",15)) |
1154 | return; |
8d063cd8 |
1155 | } |
1156 | fputs(tokenbuf,stdout); |
1157 | } |
1158 | |
1159 | numary(arg) |
1160 | int arg; |
1161 | { |
1162 | STR *key; |
1163 | int dummy; |
1164 | |
a687059c |
1165 | key = walk(0,0,arg,&dummy,P_MIN); |
8d063cd8 |
1166 | str_cat(key,"[]"); |
1167 | hstore(symtab,key->str_ptr,str_make("1")); |
1168 | str_free(key); |
1169 | set_array_base = TRUE; |
1170 | return arg; |
1171 | } |
a687059c |
1172 | |
1173 | rememberargs(arg) |
1174 | int arg; |
1175 | { |
1176 | int type; |
1177 | STR *str; |
1178 | |
1179 | if (!arg) |
1180 | return arg; |
1181 | type = ops[arg].ival & 255; |
1182 | if (type == OCOMMA) { |
1183 | rememberargs(ops[arg+1].ival); |
1184 | rememberargs(ops[arg+3].ival); |
1185 | } |
1186 | else if (type == OVAR) { |
1187 | str = str_new(0); |
1188 | hstore(curarghash,ops[ops[arg+1].ival+1].cval,str); |
1189 | } |
1190 | else |
1191 | fatal("panic: unknown argument type %d, line %d\n",type,line); |
1192 | return arg; |
1193 | } |
1194 | |
1195 | aryrefarg(arg) |
1196 | int arg; |
1197 | { |
1198 | int type = ops[arg].ival & 255; |
1199 | STR *str; |
1200 | |
1201 | if (type != OSTRING) |
1202 | fatal("panic: aryrefarg %d, line %d\n",type,line); |
1203 | str = hfetch(curarghash,ops[arg+1].cval); |
1204 | if (str) |
1205 | str_set(str,"*"); |
1206 | return arg; |
1207 | } |
1208 | |
1209 | fixfargs(name,arg,prevargs) |
1210 | int name; |
1211 | int arg; |
1212 | int prevargs; |
1213 | { |
1214 | int type; |
1215 | STR *str; |
1216 | int numargs; |
1217 | |
1218 | if (!arg) |
1219 | return prevargs; |
1220 | type = ops[arg].ival & 255; |
1221 | if (type == OCOMMA) { |
1222 | numargs = fixfargs(name,ops[arg+1].ival,prevargs); |
1223 | numargs = fixfargs(name,ops[arg+3].ival,numargs); |
1224 | } |
1225 | else if (type == OVAR) { |
1226 | str = hfetch(curarghash,ops[ops[arg+1].ival+1].cval); |
1227 | if (strEQ(str_get(str),"*")) { |
1228 | char tmpbuf[128]; |
1229 | |
1230 | str_set(str,""); /* in case another routine has this */ |
1231 | ops[arg].ival &= ~255; |
1232 | ops[arg].ival |= OSTAR; |
1233 | sprintf(tmpbuf,"%s:%d",ops[name+1].cval,prevargs); |
1234 | fprintf(stderr,"Adding %s\n",tmpbuf); |
1235 | str = str_new(0); |
1236 | str_set(str,"*"); |
1237 | hstore(curarghash,tmpbuf,str); |
1238 | } |
1239 | numargs = prevargs + 1; |
1240 | } |
1241 | else |
1242 | fatal("panic: unknown argument type %d, arg %d, line %d\n", |
39c3038c |
1243 | type,prevargs+1,line); |
a687059c |
1244 | return numargs; |
1245 | } |
1246 | |
1247 | fixrargs(name,arg,prevargs) |
1248 | char *name; |
1249 | int arg; |
1250 | int prevargs; |
1251 | { |
1252 | int type; |
1253 | STR *str; |
1254 | int numargs; |
1255 | |
1256 | if (!arg) |
1257 | return prevargs; |
1258 | type = ops[arg].ival & 255; |
1259 | if (type == OCOMMA) { |
1260 | numargs = fixrargs(name,ops[arg+1].ival,prevargs); |
1261 | numargs = fixrargs(name,ops[arg+3].ival,numargs); |
1262 | } |
1263 | else { |
1264 | char tmpbuf[128]; |
1265 | |
1266 | sprintf(tmpbuf,"%s:%d",name,prevargs); |
1267 | str = hfetch(curarghash,tmpbuf); |
1268 | fprintf(stderr,"Looking for %s\n",tmpbuf); |
1269 | if (str && strEQ(str->str_ptr,"*")) { |
1270 | if (type == OVAR || type == OSTAR) { |
1271 | ops[arg].ival &= ~255; |
1272 | ops[arg].ival |= OSTAR; |
1273 | } |
1274 | else |
1275 | fatal("Can't pass expression by reference as arg %d of %s\n", |
1276 | prevargs+1, name); |
1277 | } |
1278 | numargs = prevargs + 1; |
1279 | } |
1280 | return numargs; |
1281 | } |
1282 | |