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79072805 |
1 | /* $RCSfile: a2py.c,v $$Revision: 4.1 $$Date: 92/08/07 18:29:14 $ |
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 $ |
8d063cd8 |
9 | */ |
10 | |
bf10efe7 |
11 | #ifdef OS2 |
12 | #include "../patchlevel.h" |
39c3038c |
13 | #endif |
8d063cd8 |
14 | #include "util.h" |
8d063cd8 |
15 | |
16 | char *filename; |
39c3038c |
17 | char *myname; |
8d063cd8 |
18 | |
378cc40b |
19 | int checkers = 0; |
748a9306 |
20 | |
21 | int oper0(); |
22 | int oper1(); |
23 | int oper2(); |
24 | int oper3(); |
25 | int oper4(); |
26 | int oper5(); |
a687059c |
27 | STR *walk(); |
378cc40b |
28 | |
bf10efe7 |
29 | #ifdef OS2 |
39c3038c |
30 | usage() |
31 | { |
a0d0e21e |
32 | printf("\nThis is the AWK to PERL translator, version 5.0, patchlevel %d\n", PATCHLEVEL); |
39c3038c |
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; |
8d063cd8 |
50 | int i; |
8d063cd8 |
51 | STR *tmpstr; |
52 | |
39c3038c |
53 | myname = argv[0]; |
8d063cd8 |
54 | linestr = str_new(80); |
55 | str = str_new(0); /* first used for -I flags */ |
56 | for (argc--,argv++; argc; argc--,argv++) { |
57 | if (argv[0][0] != '-' || !argv[0][1]) |
58 | break; |
59 | reswitch: |
60 | switch (argv[0][1]) { |
61 | #ifdef DEBUGGING |
62 | case 'D': |
63 | debug = atoi(argv[0]+2); |
64 | #ifdef YYDEBUG |
65 | yydebug = (debug & 1); |
66 | #endif |
67 | break; |
68 | #endif |
69 | case '0': case '1': case '2': case '3': case '4': |
70 | case '5': case '6': case '7': case '8': case '9': |
71 | maxfld = atoi(argv[0]+1); |
72 | absmaxfld = TRUE; |
73 | break; |
74 | case 'F': |
75 | fswitch = argv[0][2]; |
76 | break; |
77 | case 'n': |
78 | namelist = savestr(argv[0]+2); |
79 | break; |
80 | case '-': |
81 | argc--,argv++; |
82 | goto switch_end; |
83 | case 0: |
84 | break; |
85 | default: |
86 | fatal("Unrecognized switch: %s\n",argv[0]); |
bf10efe7 |
87 | #ifdef OS2 |
39c3038c |
88 | usage(); |
89 | #endif |
8d063cd8 |
90 | } |
91 | } |
92 | switch_end: |
93 | |
94 | /* open script */ |
95 | |
39c3038c |
96 | if (argv[0] == Nullch) { |
bf10efe7 |
97 | #ifdef OS2 |
39c3038c |
98 | if ( isatty(fileno(stdin)) ) |
99 | usage(); |
100 | #endif |
101 | argv[0] = "-"; |
102 | } |
103 | filename = savestr(argv[0]); |
104 | |
8d063cd8 |
105 | filename = savestr(argv[0]); |
106 | if (strEQ(filename,"-")) |
107 | argv[0] = ""; |
108 | if (!*argv[0]) |
109 | rsfp = stdin; |
110 | else |
111 | rsfp = fopen(argv[0],"r"); |
112 | if (rsfp == Nullfp) |
113 | fatal("Awk script \"%s\" doesn't seem to exist.\n",filename); |
114 | |
115 | /* init tokener */ |
116 | |
117 | bufptr = str_get(linestr); |
118 | symtab = hnew(); |
a687059c |
119 | curarghash = hnew(); |
8d063cd8 |
120 | |
121 | /* now parse the report spec */ |
122 | |
123 | if (yyparse()) |
124 | fatal("Translation aborted due to syntax errors.\n"); |
125 | |
126 | #ifdef DEBUGGING |
127 | if (debug & 2) { |
128 | int type, len; |
129 | |
130 | for (i=1; i<mop;) { |
131 | type = ops[i].ival; |
132 | len = type >> 8; |
133 | type &= 255; |
134 | printf("%d\t%d\t%d\t%-10s",i++,type,len,opname[type]); |
135 | if (type == OSTRING) |
136 | printf("\t\"%s\"\n",ops[i].cval),i++; |
137 | else { |
138 | while (len--) { |
139 | printf("\t%d",ops[i].ival),i++; |
140 | } |
141 | putchar('\n'); |
142 | } |
143 | } |
144 | } |
145 | if (debug & 8) |
146 | dump(root); |
147 | #endif |
148 | |
149 | /* first pass to look for numeric variables */ |
150 | |
151 | prewalk(0,0,root,&i); |
152 | |
153 | /* second pass to produce new program */ |
154 | |
a687059c |
155 | tmpstr = walk(0,0,root,&i,P_MIN); |
156 | str = str_make("#!"); |
157 | str_cat(str, BIN); |
158 | str_cat(str, "/perl\neval \"exec "); |
159 | str_cat(str, BIN); |
160 | str_cat(str, "/perl -S $0 $*\"\n\ |
378cc40b |
161 | if $running_under_some_shell;\n\ |
162 | # this emulates #! processing on NIH machines.\n\ |
163 | # (remove #! line above if indigestible)\n\n"); |
a559c259 |
164 | str_cat(str, |
a0d0e21e |
165 | "eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_0-9]+=)(.*)/ && shift;\n"); |
a559c259 |
166 | str_cat(str, |
167 | " # process any FOO=bar switches\n\n"); |
8d063cd8 |
168 | if (do_opens && opens) { |
169 | str_scat(str,opens); |
170 | str_free(opens); |
171 | str_cat(str,"\n"); |
172 | } |
173 | str_scat(str,tmpstr); |
174 | str_free(tmpstr); |
175 | #ifdef DEBUGGING |
176 | if (!(debug & 16)) |
177 | #endif |
178 | fixup(str); |
179 | putlines(str); |
378cc40b |
180 | if (checkers) { |
181 | fprintf(stderr, |
182 | "Please check my work on the %d line%s I've marked with \"#???\".\n", |
183 | checkers, checkers == 1 ? "" : "s" ); |
184 | fprintf(stderr, |
185 | "The operation I've selected may be wrong for the operand types.\n"); |
186 | } |
8d063cd8 |
187 | exit(0); |
188 | } |
189 | |
190 | #define RETURN(retval) return (bufptr = s,retval) |
191 | #define XTERM(retval) return (expectterm = TRUE,bufptr = s,retval) |
192 | #define XOP(retval) return (expectterm = FALSE,bufptr = s,retval) |
a687059c |
193 | #define ID(x) return (yylval=string(x,0),expectterm = FALSE,bufptr = s,idtype) |
194 | |
195 | int idtype; |
8d063cd8 |
196 | |
748a9306 |
197 | int |
8d063cd8 |
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) |
a0d0e21e |
207 | if (strchr(s,'\n')) |
8d063cd8 |
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 '\\': |
bf10efe7 |
219 | s++; |
220 | if (*s && *s != '\n') { |
221 | yyerror("Ignoring spurious backslash"); |
222 | goto retry; |
223 | } |
224 | /*FALLSTHROUGH*/ |
8d063cd8 |
225 | case 0: |
226 | s = str_get(linestr); |
227 | *s = '\0'; |
228 | if (!rsfp) |
229 | RETURN(0); |
230 | line++; |
231 | if ((s = str_gets(linestr, rsfp)) == Nullch) { |
232 | if (rsfp != stdin) |
233 | fclose(rsfp); |
234 | rsfp = Nullfp; |
235 | s = str_get(linestr); |
236 | RETURN(0); |
237 | } |
238 | goto retry; |
239 | case ' ': case '\t': |
240 | s++; |
241 | goto retry; |
242 | case '\n': |
243 | *s = '\0'; |
244 | XTERM(NEWLINE); |
245 | case '#': |
246 | yylval = string(s,0); |
247 | *s = '\0'; |
248 | XTERM(COMMENT); |
249 | case ';': |
250 | tmp = *s++; |
251 | if (*s == '\n') { |
252 | s++; |
253 | XTERM(SEMINEW); |
254 | } |
255 | XTERM(tmp); |
256 | case '(': |
a687059c |
257 | tmp = *s++; |
258 | XTERM(tmp); |
8d063cd8 |
259 | case '{': |
260 | case '[': |
261 | case ')': |
262 | case ']': |
a687059c |
263 | case '?': |
264 | case ':': |
8d063cd8 |
265 | tmp = *s++; |
266 | XOP(tmp); |
267 | case 127: |
268 | s++; |
269 | XTERM('}'); |
270 | case '}': |
271 | for (d = s + 1; isspace(*d); d++) ; |
272 | if (!*d) |
273 | s = d - 1; |
274 | *s = 127; |
275 | XTERM(';'); |
276 | case ',': |
277 | tmp = *s++; |
278 | XTERM(tmp); |
279 | case '~': |
280 | s++; |
378cc40b |
281 | yylval = string("~",1); |
8d063cd8 |
282 | XTERM(MATCHOP); |
283 | case '+': |
284 | case '-': |
285 | if (s[1] == *s) { |
286 | s++; |
287 | if (*s++ == '+') |
288 | XTERM(INCR); |
289 | else |
290 | XTERM(DECR); |
291 | } |
292 | /* FALL THROUGH */ |
293 | case '*': |
294 | case '%': |
a687059c |
295 | case '^': |
8d063cd8 |
296 | tmp = *s++; |
297 | if (*s == '=') { |
a687059c |
298 | if (tmp == '^') |
299 | yylval = string("**=",3); |
300 | else |
301 | yylval = string(s-1,2); |
8d063cd8 |
302 | s++; |
303 | XTERM(ASGNOP); |
304 | } |
305 | XTERM(tmp); |
306 | case '&': |
307 | s++; |
308 | tmp = *s++; |
309 | if (tmp == '&') |
310 | XTERM(ANDAND); |
311 | s--; |
312 | XTERM('&'); |
313 | case '|': |
314 | s++; |
315 | tmp = *s++; |
316 | if (tmp == '|') |
317 | XTERM(OROR); |
318 | s--; |
a687059c |
319 | while (*s == ' ' || *s == '\t') |
320 | s++; |
321 | if (strnEQ(s,"getline",7)) |
322 | XTERM('p'); |
323 | else |
324 | XTERM('|'); |
8d063cd8 |
325 | case '=': |
326 | s++; |
327 | tmp = *s++; |
328 | if (tmp == '=') { |
329 | yylval = string("==",2); |
330 | XTERM(RELOP); |
331 | } |
332 | s--; |
333 | yylval = string("=",1); |
334 | XTERM(ASGNOP); |
335 | case '!': |
336 | s++; |
337 | tmp = *s++; |
338 | if (tmp == '=') { |
339 | yylval = string("!=",2); |
340 | XTERM(RELOP); |
341 | } |
342 | if (tmp == '~') { |
343 | yylval = string("!~",2); |
344 | XTERM(MATCHOP); |
345 | } |
346 | s--; |
347 | XTERM(NOT); |
348 | case '<': |
349 | s++; |
350 | tmp = *s++; |
351 | if (tmp == '=') { |
352 | yylval = string("<=",2); |
353 | XTERM(RELOP); |
354 | } |
355 | s--; |
a687059c |
356 | XTERM('<'); |
8d063cd8 |
357 | case '>': |
358 | s++; |
359 | tmp = *s++; |
378cc40b |
360 | if (tmp == '>') { |
361 | yylval = string(">>",2); |
362 | XTERM(GRGR); |
363 | } |
8d063cd8 |
364 | if (tmp == '=') { |
365 | yylval = string(">=",2); |
366 | XTERM(RELOP); |
367 | } |
368 | s--; |
a687059c |
369 | XTERM('>'); |
8d063cd8 |
370 | |
371 | #define SNARFWORD \ |
372 | d = tokenbuf; \ |
373 | while (isalpha(*s) || isdigit(*s) || *s == '_') \ |
374 | *d++ = *s++; \ |
375 | *d = '\0'; \ |
a687059c |
376 | d = tokenbuf; \ |
377 | if (*s == '(') \ |
378 | idtype = USERFUN; \ |
379 | else \ |
380 | idtype = VAR; |
8d063cd8 |
381 | |
382 | case '$': |
383 | s++; |
384 | if (*s == '0') { |
385 | s++; |
386 | do_chop = TRUE; |
387 | need_entire = TRUE; |
a687059c |
388 | idtype = VAR; |
8d063cd8 |
389 | ID("0"); |
390 | } |
391 | do_split = TRUE; |
392 | if (isdigit(*s)) { |
393 | for (d = s; isdigit(*s); s++) ; |
394 | yylval = string(d,s-d); |
395 | tmp = atoi(d); |
396 | if (tmp > maxfld) |
397 | maxfld = tmp; |
398 | XOP(FIELD); |
399 | } |
400 | split_to_array = set_array_base = TRUE; |
401 | XOP(VFIELD); |
402 | |
403 | case '/': /* may either be division or pattern */ |
404 | if (expectterm) { |
405 | s = scanpat(s); |
406 | XTERM(REGEX); |
407 | } |
408 | tmp = *s++; |
409 | if (*s == '=') { |
410 | yylval = string("/=",2); |
411 | s++; |
412 | XTERM(ASGNOP); |
413 | } |
414 | XTERM(tmp); |
415 | |
416 | case '0': case '1': case '2': case '3': case '4': |
a687059c |
417 | case '5': case '6': case '7': case '8': case '9': case '.': |
8d063cd8 |
418 | s = scannum(s); |
419 | XOP(NUMBER); |
420 | case '"': |
421 | s++; |
422 | s = cpy2(tokenbuf,s,s[-1]); |
423 | if (!*s) |
424 | fatal("String not terminated:\n%s",str_get(linestr)); |
425 | s++; |
426 | yylval = string(tokenbuf,0); |
427 | XOP(STRING); |
428 | |
429 | case 'a': case 'A': |
430 | SNARFWORD; |
a687059c |
431 | if (strEQ(d,"ARGC")) |
432 | set_array_base = TRUE; |
433 | if (strEQ(d,"ARGV")) { |
434 | yylval=numary(string("ARGV",0)); |
435 | XOP(VAR); |
436 | } |
437 | if (strEQ(d,"atan2")) { |
438 | yylval = OATAN2; |
439 | XTERM(FUNN); |
440 | } |
8d063cd8 |
441 | ID(d); |
442 | case 'b': case 'B': |
443 | SNARFWORD; |
444 | if (strEQ(d,"break")) |
445 | XTERM(BREAK); |
446 | if (strEQ(d,"BEGIN")) |
447 | XTERM(BEGIN); |
448 | ID(d); |
449 | case 'c': case 'C': |
450 | SNARFWORD; |
451 | if (strEQ(d,"continue")) |
452 | XTERM(CONTINUE); |
a687059c |
453 | if (strEQ(d,"cos")) { |
454 | yylval = OCOS; |
455 | XTERM(FUN1); |
456 | } |
457 | if (strEQ(d,"close")) { |
458 | do_fancy_opens = 1; |
459 | yylval = OCLOSE; |
460 | XTERM(FUN1); |
461 | } |
462 | if (strEQ(d,"chdir")) |
463 | *d = toupper(*d); |
464 | else if (strEQ(d,"crypt")) |
465 | *d = toupper(*d); |
466 | else if (strEQ(d,"chop")) |
467 | *d = toupper(*d); |
468 | else if (strEQ(d,"chmod")) |
469 | *d = toupper(*d); |
470 | else if (strEQ(d,"chown")) |
471 | *d = toupper(*d); |
8d063cd8 |
472 | ID(d); |
473 | case 'd': case 'D': |
474 | SNARFWORD; |
a687059c |
475 | if (strEQ(d,"do")) |
476 | XTERM(DO); |
477 | if (strEQ(d,"delete")) |
478 | XTERM(DELETE); |
479 | if (strEQ(d,"die")) |
480 | *d = toupper(*d); |
8d063cd8 |
481 | ID(d); |
482 | case 'e': case 'E': |
483 | SNARFWORD; |
484 | if (strEQ(d,"END")) |
485 | XTERM(END); |
486 | if (strEQ(d,"else")) |
487 | XTERM(ELSE); |
488 | if (strEQ(d,"exit")) { |
489 | saw_line_op = TRUE; |
490 | XTERM(EXIT); |
491 | } |
492 | if (strEQ(d,"exp")) { |
493 | yylval = OEXP; |
494 | XTERM(FUN1); |
495 | } |
a687059c |
496 | if (strEQ(d,"elsif")) |
497 | *d = toupper(*d); |
498 | else if (strEQ(d,"eq")) |
499 | *d = toupper(*d); |
500 | else if (strEQ(d,"eval")) |
501 | *d = toupper(*d); |
502 | else if (strEQ(d,"eof")) |
503 | *d = toupper(*d); |
504 | else if (strEQ(d,"each")) |
505 | *d = toupper(*d); |
506 | else if (strEQ(d,"exec")) |
507 | *d = toupper(*d); |
8d063cd8 |
508 | ID(d); |
509 | case 'f': case 'F': |
510 | SNARFWORD; |
511 | if (strEQ(d,"FS")) { |
512 | saw_FS++; |
513 | if (saw_FS == 1 && in_begin) { |
514 | for (d = s; *d && isspace(*d); d++) ; |
515 | if (*d == '=') { |
516 | for (d++; *d && isspace(*d); d++) ; |
517 | if (*d == '"' && d[2] == '"') |
518 | const_FS = d[1]; |
519 | } |
520 | } |
521 | ID(tokenbuf); |
522 | } |
8d063cd8 |
523 | if (strEQ(d,"for")) |
524 | XTERM(FOR); |
a687059c |
525 | else if (strEQ(d,"function")) |
526 | XTERM(FUNCTION); |
527 | if (strEQ(d,"FILENAME")) |
528 | d = "ARGV"; |
529 | if (strEQ(d,"foreach")) |
530 | *d = toupper(*d); |
531 | else if (strEQ(d,"format")) |
532 | *d = toupper(*d); |
533 | else if (strEQ(d,"fork")) |
534 | *d = toupper(*d); |
535 | else if (strEQ(d,"fh")) |
536 | *d = toupper(*d); |
8d063cd8 |
537 | ID(d); |
538 | case 'g': case 'G': |
539 | SNARFWORD; |
540 | if (strEQ(d,"getline")) |
541 | XTERM(GETLINE); |
a687059c |
542 | if (strEQ(d,"gsub")) |
543 | XTERM(GSUB); |
544 | if (strEQ(d,"ge")) |
545 | *d = toupper(*d); |
546 | else if (strEQ(d,"gt")) |
547 | *d = toupper(*d); |
548 | else if (strEQ(d,"goto")) |
549 | *d = toupper(*d); |
550 | else if (strEQ(d,"gmtime")) |
551 | *d = toupper(*d); |
8d063cd8 |
552 | ID(d); |
553 | case 'h': case 'H': |
554 | SNARFWORD; |
a687059c |
555 | if (strEQ(d,"hex")) |
556 | *d = toupper(*d); |
8d063cd8 |
557 | ID(d); |
558 | case 'i': case 'I': |
559 | SNARFWORD; |
560 | if (strEQ(d,"if")) |
561 | XTERM(IF); |
562 | if (strEQ(d,"in")) |
563 | XTERM(IN); |
564 | if (strEQ(d,"index")) { |
565 | set_array_base = TRUE; |
566 | XTERM(INDEX); |
567 | } |
568 | if (strEQ(d,"int")) { |
569 | yylval = OINT; |
570 | XTERM(FUN1); |
571 | } |
572 | ID(d); |
573 | case 'j': case 'J': |
574 | SNARFWORD; |
a687059c |
575 | if (strEQ(d,"join")) |
576 | *d = toupper(*d); |
8d063cd8 |
577 | ID(d); |
578 | case 'k': case 'K': |
579 | SNARFWORD; |
a687059c |
580 | if (strEQ(d,"keys")) |
581 | *d = toupper(*d); |
582 | else if (strEQ(d,"kill")) |
583 | *d = toupper(*d); |
8d063cd8 |
584 | ID(d); |
585 | case 'l': case 'L': |
586 | SNARFWORD; |
587 | if (strEQ(d,"length")) { |
588 | yylval = OLENGTH; |
589 | XTERM(FUN1); |
590 | } |
591 | if (strEQ(d,"log")) { |
592 | yylval = OLOG; |
593 | XTERM(FUN1); |
594 | } |
a687059c |
595 | if (strEQ(d,"last")) |
596 | *d = toupper(*d); |
597 | else if (strEQ(d,"local")) |
598 | *d = toupper(*d); |
599 | else if (strEQ(d,"lt")) |
600 | *d = toupper(*d); |
601 | else if (strEQ(d,"le")) |
602 | *d = toupper(*d); |
603 | else if (strEQ(d,"locatime")) |
604 | *d = toupper(*d); |
605 | else if (strEQ(d,"link")) |
606 | *d = toupper(*d); |
8d063cd8 |
607 | ID(d); |
608 | case 'm': case 'M': |
609 | SNARFWORD; |
a687059c |
610 | if (strEQ(d,"match")) { |
611 | set_array_base = TRUE; |
612 | XTERM(MATCH); |
613 | } |
614 | if (strEQ(d,"m")) |
615 | *d = toupper(*d); |
8d063cd8 |
616 | ID(d); |
617 | case 'n': case 'N': |
618 | SNARFWORD; |
619 | if (strEQ(d,"NF")) |
87250799 |
620 | do_chop = do_split = split_to_array = set_array_base = TRUE; |
8d063cd8 |
621 | if (strEQ(d,"next")) { |
622 | saw_line_op = TRUE; |
623 | XTERM(NEXT); |
624 | } |
a687059c |
625 | if (strEQ(d,"ne")) |
626 | *d = toupper(*d); |
8d063cd8 |
627 | ID(d); |
628 | case 'o': case 'O': |
629 | SNARFWORD; |
630 | if (strEQ(d,"ORS")) { |
631 | saw_ORS = TRUE; |
a687059c |
632 | d = "\\"; |
8d063cd8 |
633 | } |
634 | if (strEQ(d,"OFS")) { |
635 | saw_OFS = TRUE; |
a687059c |
636 | d = ","; |
8d063cd8 |
637 | } |
638 | if (strEQ(d,"OFMT")) { |
a687059c |
639 | d = "#"; |
8d063cd8 |
640 | } |
a687059c |
641 | if (strEQ(d,"open")) |
642 | *d = toupper(*d); |
643 | else if (strEQ(d,"ord")) |
644 | *d = toupper(*d); |
645 | else if (strEQ(d,"oct")) |
646 | *d = toupper(*d); |
8d063cd8 |
647 | ID(d); |
648 | case 'p': case 'P': |
649 | SNARFWORD; |
650 | if (strEQ(d,"print")) { |
651 | XTERM(PRINT); |
652 | } |
653 | if (strEQ(d,"printf")) { |
654 | XTERM(PRINTF); |
655 | } |
a687059c |
656 | if (strEQ(d,"push")) |
657 | *d = toupper(*d); |
658 | else if (strEQ(d,"pop")) |
659 | *d = toupper(*d); |
8d063cd8 |
660 | ID(d); |
661 | case 'q': case 'Q': |
662 | SNARFWORD; |
663 | ID(d); |
664 | case 'r': case 'R': |
665 | SNARFWORD; |
666 | if (strEQ(d,"RS")) { |
a687059c |
667 | d = "/"; |
8d063cd8 |
668 | saw_RS = TRUE; |
669 | } |
a687059c |
670 | if (strEQ(d,"rand")) { |
671 | yylval = ORAND; |
672 | XTERM(FUN1); |
673 | } |
674 | if (strEQ(d,"return")) |
675 | XTERM(RET); |
676 | if (strEQ(d,"reset")) |
677 | *d = toupper(*d); |
678 | else if (strEQ(d,"redo")) |
679 | *d = toupper(*d); |
680 | else if (strEQ(d,"rename")) |
681 | *d = toupper(*d); |
8d063cd8 |
682 | ID(d); |
683 | case 's': case 'S': |
684 | SNARFWORD; |
685 | if (strEQ(d,"split")) { |
686 | set_array_base = TRUE; |
687 | XOP(SPLIT); |
688 | } |
689 | if (strEQ(d,"substr")) { |
690 | set_array_base = TRUE; |
691 | XTERM(SUBSTR); |
692 | } |
a687059c |
693 | if (strEQ(d,"sub")) |
694 | XTERM(SUB); |
8d063cd8 |
695 | if (strEQ(d,"sprintf")) |
696 | XTERM(SPRINTF); |
697 | if (strEQ(d,"sqrt")) { |
698 | yylval = OSQRT; |
699 | XTERM(FUN1); |
700 | } |
a687059c |
701 | if (strEQ(d,"SUBSEP")) { |
702 | d = ";"; |
703 | } |
704 | if (strEQ(d,"sin")) { |
705 | yylval = OSIN; |
706 | XTERM(FUN1); |
707 | } |
708 | if (strEQ(d,"srand")) { |
709 | yylval = OSRAND; |
710 | XTERM(FUN1); |
711 | } |
712 | if (strEQ(d,"system")) { |
713 | yylval = OSYSTEM; |
714 | XTERM(FUN1); |
715 | } |
716 | if (strEQ(d,"s")) |
717 | *d = toupper(*d); |
718 | else if (strEQ(d,"shift")) |
719 | *d = toupper(*d); |
720 | else if (strEQ(d,"select")) |
721 | *d = toupper(*d); |
722 | else if (strEQ(d,"seek")) |
723 | *d = toupper(*d); |
724 | else if (strEQ(d,"stat")) |
725 | *d = toupper(*d); |
726 | else if (strEQ(d,"study")) |
727 | *d = toupper(*d); |
728 | else if (strEQ(d,"sleep")) |
729 | *d = toupper(*d); |
730 | else if (strEQ(d,"symlink")) |
731 | *d = toupper(*d); |
732 | else if (strEQ(d,"sort")) |
733 | *d = toupper(*d); |
8d063cd8 |
734 | ID(d); |
735 | case 't': case 'T': |
736 | SNARFWORD; |
a687059c |
737 | if (strEQ(d,"tr")) |
738 | *d = toupper(*d); |
739 | else if (strEQ(d,"tell")) |
740 | *d = toupper(*d); |
741 | else if (strEQ(d,"time")) |
742 | *d = toupper(*d); |
743 | else if (strEQ(d,"times")) |
744 | *d = toupper(*d); |
8d063cd8 |
745 | ID(d); |
746 | case 'u': case 'U': |
747 | SNARFWORD; |
a687059c |
748 | if (strEQ(d,"until")) |
749 | *d = toupper(*d); |
750 | else if (strEQ(d,"unless")) |
751 | *d = toupper(*d); |
752 | else if (strEQ(d,"umask")) |
753 | *d = toupper(*d); |
754 | else if (strEQ(d,"unshift")) |
755 | *d = toupper(*d); |
756 | else if (strEQ(d,"unlink")) |
757 | *d = toupper(*d); |
758 | else if (strEQ(d,"utime")) |
759 | *d = toupper(*d); |
8d063cd8 |
760 | ID(d); |
761 | case 'v': case 'V': |
762 | SNARFWORD; |
a687059c |
763 | if (strEQ(d,"values")) |
764 | *d = toupper(*d); |
8d063cd8 |
765 | ID(d); |
766 | case 'w': case 'W': |
767 | SNARFWORD; |
768 | if (strEQ(d,"while")) |
769 | XTERM(WHILE); |
a687059c |
770 | if (strEQ(d,"write")) |
771 | *d = toupper(*d); |
772 | else if (strEQ(d,"wait")) |
773 | *d = toupper(*d); |
8d063cd8 |
774 | ID(d); |
775 | case 'x': case 'X': |
776 | SNARFWORD; |
a687059c |
777 | if (strEQ(d,"x")) |
778 | *d = toupper(*d); |
8d063cd8 |
779 | ID(d); |
780 | case 'y': case 'Y': |
781 | SNARFWORD; |
a687059c |
782 | if (strEQ(d,"y")) |
783 | *d = toupper(*d); |
8d063cd8 |
784 | ID(d); |
785 | case 'z': case 'Z': |
786 | SNARFWORD; |
787 | ID(d); |
788 | } |
789 | } |
790 | |
791 | char * |
792 | scanpat(s) |
793 | register char *s; |
794 | { |
795 | register char *d; |
796 | |
797 | switch (*s++) { |
798 | case '/': |
799 | break; |
800 | default: |
801 | fatal("Search pattern not found:\n%s",str_get(linestr)); |
802 | } |
378cc40b |
803 | |
804 | d = tokenbuf; |
805 | for (; *s; s++,d++) { |
806 | if (*s == '\\') { |
807 | if (s[1] == '/') |
808 | *d++ = *s++; |
809 | else if (s[1] == '\\') |
810 | *d++ = *s++; |
bf10efe7 |
811 | else if (s[1] == '[') |
812 | *d++ = *s++; |
378cc40b |
813 | } |
814 | else if (*s == '[') { |
815 | *d++ = *s++; |
816 | do { |
817 | if (*s == '\\' && s[1]) |
818 | *d++ = *s++; |
819 | if (*s == '/' || (*s == '-' && s[1] == ']')) |
820 | *d++ = '\\'; |
821 | *d++ = *s++; |
822 | } while (*s && *s != ']'); |
823 | } |
824 | else if (*s == '/') |
825 | break; |
826 | *d = *s; |
827 | } |
828 | *d = '\0'; |
829 | |
8d063cd8 |
830 | if (!*s) |
831 | fatal("Search pattern not terminated:\n%s",str_get(linestr)); |
832 | s++; |
833 | yylval = string(tokenbuf,0); |
834 | return s; |
835 | } |
836 | |
75f92628 |
837 | void |
8d063cd8 |
838 | yyerror(s) |
839 | char *s; |
840 | { |
841 | fprintf(stderr,"%s in file %s at line %d\n", |
842 | s,filename,line); |
843 | } |
844 | |
845 | char * |
846 | scannum(s) |
847 | register char *s; |
848 | { |
849 | register char *d; |
850 | |
851 | switch (*s) { |
852 | case '1': case '2': case '3': case '4': case '5': |
853 | case '6': case '7': case '8': case '9': case '0' : case '.': |
854 | d = tokenbuf; |
378cc40b |
855 | while (isdigit(*s)) { |
8d063cd8 |
856 | *d++ = *s++; |
378cc40b |
857 | } |
bf10efe7 |
858 | if (*s == '.') { |
859 | if (isdigit(s[1])) { |
378cc40b |
860 | *d++ = *s++; |
bf10efe7 |
861 | while (isdigit(*s)) { |
862 | *d++ = *s++; |
863 | } |
378cc40b |
864 | } |
bf10efe7 |
865 | else |
866 | s++; |
378cc40b |
867 | } |
a0d0e21e |
868 | if (strchr("eE",*s) && strchr("+-0123456789",s[1])) { |
8d063cd8 |
869 | *d++ = *s++; |
378cc40b |
870 | if (*s == '+' || *s == '-') |
871 | *d++ = *s++; |
872 | while (isdigit(*s)) |
873 | *d++ = *s++; |
874 | } |
8d063cd8 |
875 | *d = '\0'; |
876 | yylval = string(tokenbuf,0); |
877 | break; |
878 | } |
879 | return s; |
880 | } |
881 | |
748a9306 |
882 | int |
8d063cd8 |
883 | string(ptr,len) |
884 | char *ptr; |
748a9306 |
885 | int len; |
8d063cd8 |
886 | { |
887 | int retval = mop; |
888 | |
889 | ops[mop++].ival = OSTRING + (1<<8); |
890 | if (!len) |
891 | len = strlen(ptr); |
892 | ops[mop].cval = safemalloc(len+1); |
893 | strncpy(ops[mop].cval,ptr,len); |
894 | ops[mop++].cval[len] = '\0'; |
a687059c |
895 | if (mop >= OPSMAX) |
896 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
897 | return retval; |
898 | } |
899 | |
748a9306 |
900 | int |
8d063cd8 |
901 | oper0(type) |
902 | int type; |
903 | { |
904 | int retval = mop; |
905 | |
906 | if (type > 255) |
907 | fatal("type > 255 (%d)\n",type); |
908 | ops[mop++].ival = type; |
a687059c |
909 | if (mop >= OPSMAX) |
910 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
911 | return retval; |
912 | } |
913 | |
748a9306 |
914 | int |
8d063cd8 |
915 | oper1(type,arg1) |
916 | int type; |
917 | int arg1; |
918 | { |
919 | int retval = mop; |
920 | |
921 | if (type > 255) |
922 | fatal("type > 255 (%d)\n",type); |
923 | ops[mop++].ival = type + (1<<8); |
924 | ops[mop++].ival = arg1; |
a687059c |
925 | if (mop >= OPSMAX) |
926 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
927 | return retval; |
928 | } |
929 | |
748a9306 |
930 | int |
8d063cd8 |
931 | oper2(type,arg1,arg2) |
932 | int type; |
933 | int arg1; |
934 | int arg2; |
935 | { |
936 | int retval = mop; |
937 | |
938 | if (type > 255) |
939 | fatal("type > 255 (%d)\n",type); |
940 | ops[mop++].ival = type + (2<<8); |
941 | ops[mop++].ival = arg1; |
942 | ops[mop++].ival = arg2; |
a687059c |
943 | if (mop >= OPSMAX) |
944 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
945 | return retval; |
946 | } |
947 | |
748a9306 |
948 | int |
8d063cd8 |
949 | oper3(type,arg1,arg2,arg3) |
950 | int type; |
951 | int arg1; |
952 | int arg2; |
953 | int arg3; |
954 | { |
955 | int retval = mop; |
956 | |
957 | if (type > 255) |
958 | fatal("type > 255 (%d)\n",type); |
959 | ops[mop++].ival = type + (3<<8); |
960 | ops[mop++].ival = arg1; |
961 | ops[mop++].ival = arg2; |
962 | ops[mop++].ival = arg3; |
a687059c |
963 | if (mop >= OPSMAX) |
964 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
965 | return retval; |
966 | } |
967 | |
748a9306 |
968 | int |
8d063cd8 |
969 | oper4(type,arg1,arg2,arg3,arg4) |
970 | int type; |
971 | int arg1; |
972 | int arg2; |
973 | int arg3; |
974 | int arg4; |
975 | { |
976 | int retval = mop; |
977 | |
978 | if (type > 255) |
979 | fatal("type > 255 (%d)\n",type); |
980 | ops[mop++].ival = type + (4<<8); |
981 | ops[mop++].ival = arg1; |
982 | ops[mop++].ival = arg2; |
983 | ops[mop++].ival = arg3; |
984 | ops[mop++].ival = arg4; |
a687059c |
985 | if (mop >= OPSMAX) |
986 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
987 | return retval; |
988 | } |
989 | |
748a9306 |
990 | int |
8d063cd8 |
991 | oper5(type,arg1,arg2,arg3,arg4,arg5) |
992 | int type; |
993 | int arg1; |
994 | int arg2; |
995 | int arg3; |
996 | int arg4; |
997 | int arg5; |
998 | { |
999 | int retval = mop; |
1000 | |
1001 | if (type > 255) |
1002 | fatal("type > 255 (%d)\n",type); |
1003 | ops[mop++].ival = type + (5<<8); |
1004 | ops[mop++].ival = arg1; |
1005 | ops[mop++].ival = arg2; |
1006 | ops[mop++].ival = arg3; |
1007 | ops[mop++].ival = arg4; |
1008 | ops[mop++].ival = arg5; |
a687059c |
1009 | if (mop >= OPSMAX) |
1010 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
1011 | return retval; |
1012 | } |
1013 | |
1014 | int depth = 0; |
1015 | |
75f92628 |
1016 | void |
8d063cd8 |
1017 | dump(branch) |
1018 | int branch; |
1019 | { |
1020 | register int type; |
1021 | register int len; |
1022 | register int i; |
1023 | |
1024 | type = ops[branch].ival; |
1025 | len = type >> 8; |
1026 | type &= 255; |
1027 | for (i=depth; i; i--) |
1028 | printf(" "); |
1029 | if (type == OSTRING) { |
1030 | printf("%-5d\"%s\"\n",branch,ops[branch+1].cval); |
1031 | } |
1032 | else { |
1033 | printf("(%-5d%s %d\n",branch,opname[type],len); |
1034 | depth++; |
1035 | for (i=1; i<=len; i++) |
1036 | dump(ops[branch+i].ival); |
1037 | depth--; |
1038 | for (i=depth; i; i--) |
1039 | printf(" "); |
1040 | printf(")\n"); |
1041 | } |
1042 | } |
1043 | |
748a9306 |
1044 | int |
8d063cd8 |
1045 | bl(arg,maybe) |
1046 | int arg; |
1047 | int maybe; |
1048 | { |
1049 | if (!arg) |
1050 | return 0; |
1051 | else if ((ops[arg].ival & 255) != OBLOCK) |
1052 | return oper2(OBLOCK,arg,maybe); |
378cc40b |
1053 | else if ((ops[arg].ival >> 8) < 2) |
8d063cd8 |
1054 | return oper2(OBLOCK,ops[arg+1].ival,maybe); |
1055 | else |
1056 | return arg; |
1057 | } |
1058 | |
75f92628 |
1059 | void |
8d063cd8 |
1060 | fixup(str) |
1061 | STR *str; |
1062 | { |
1063 | register char *s; |
1064 | register char *t; |
1065 | |
1066 | for (s = str->str_ptr; *s; s++) { |
1067 | if (*s == ';' && s[1] == ' ' && s[2] == '\n') { |
1068 | strcpy(s+1,s+2); |
1069 | s++; |
1070 | } |
1071 | else if (*s == '\n') { |
1072 | for (t = s+1; isspace(*t & 127); t++) ; |
1073 | t--; |
1074 | while (isspace(*t & 127) && *t != '\n') t--; |
1075 | if (*t == '\n' && t-s > 1) { |
1076 | if (s[-1] == '{') |
1077 | s--; |
1078 | strcpy(s+1,t); |
1079 | } |
1080 | s++; |
1081 | } |
1082 | } |
1083 | } |
1084 | |
75f92628 |
1085 | void |
8d063cd8 |
1086 | putlines(str) |
1087 | STR *str; |
1088 | { |
1089 | register char *d, *s, *t, *e; |
1090 | register int pos, newpos; |
1091 | |
1092 | d = tokenbuf; |
1093 | pos = 0; |
1094 | for (s = str->str_ptr; *s; s++) { |
1095 | *d++ = *s; |
1096 | pos++; |
1097 | if (*s == '\n') { |
1098 | *d = '\0'; |
1099 | d = tokenbuf; |
1100 | pos = 0; |
1101 | putone(); |
1102 | } |
1103 | else if (*s == '\t') |
1104 | pos += 7; |
1105 | if (pos > 78) { /* split a long line? */ |
1106 | *d-- = '\0'; |
1107 | newpos = 0; |
1108 | for (t = tokenbuf; isspace(*t & 127); t++) { |
1109 | if (*t == '\t') |
1110 | newpos += 8; |
1111 | else |
1112 | newpos += 1; |
1113 | } |
1114 | e = d; |
1115 | while (d > tokenbuf && (*d != ' ' || d[-1] != ';')) |
1116 | d--; |
1117 | if (d < t+10) { |
1118 | d = e; |
1119 | while (d > tokenbuf && |
1120 | (*d != ' ' || d[-1] != '|' || d[-2] != '|') ) |
1121 | d--; |
1122 | } |
1123 | if (d < t+10) { |
1124 | d = e; |
1125 | while (d > tokenbuf && |
1126 | (*d != ' ' || d[-1] != '&' || d[-2] != '&') ) |
1127 | d--; |
1128 | } |
1129 | if (d < t+10) { |
1130 | d = e; |
1131 | while (d > tokenbuf && (*d != ' ' || d[-1] != ',')) |
1132 | d--; |
1133 | } |
1134 | if (d < t+10) { |
1135 | d = e; |
1136 | while (d > tokenbuf && *d != ' ') |
1137 | d--; |
1138 | } |
1139 | if (d > t+3) { |
fe14fcc3 |
1140 | char save[2048]; |
1141 | strcpy(save, d); |
1142 | *d = '\n'; |
1143 | d[1] = '\0'; |
8d063cd8 |
1144 | putone(); |
1145 | putchar('\n'); |
1146 | if (d[-1] != ';' && !(newpos % 4)) { |
1147 | *t++ = ' '; |
1148 | *t++ = ' '; |
1149 | newpos += 2; |
1150 | } |
fe14fcc3 |
1151 | strcpy(t,save+1); |
8d063cd8 |
1152 | newpos += strlen(t); |
1153 | d = t + strlen(t); |
1154 | pos = newpos; |
1155 | } |
1156 | else |
1157 | d = e + 1; |
1158 | } |
1159 | } |
1160 | } |
1161 | |
75f92628 |
1162 | void |
8d063cd8 |
1163 | putone() |
1164 | { |
1165 | register char *t; |
1166 | |
1167 | for (t = tokenbuf; *t; t++) { |
1168 | *t &= 127; |
1169 | if (*t == 127) { |
1170 | *t = ' '; |
1171 | strcpy(t+strlen(t)-1, "\t#???\n"); |
378cc40b |
1172 | checkers++; |
8d063cd8 |
1173 | } |
1174 | } |
1175 | t = tokenbuf; |
1176 | if (*t == '#') { |
1177 | if (strnEQ(t,"#!/bin/awk",10) || strnEQ(t,"#! /bin/awk",11)) |
1178 | return; |
378cc40b |
1179 | if (strnEQ(t,"#!/usr/bin/awk",14) || strnEQ(t,"#! /usr/bin/awk",15)) |
1180 | return; |
8d063cd8 |
1181 | } |
1182 | fputs(tokenbuf,stdout); |
1183 | } |
1184 | |
748a9306 |
1185 | int |
8d063cd8 |
1186 | numary(arg) |
1187 | int arg; |
1188 | { |
1189 | STR *key; |
1190 | int dummy; |
1191 | |
a687059c |
1192 | key = walk(0,0,arg,&dummy,P_MIN); |
8d063cd8 |
1193 | str_cat(key,"[]"); |
1194 | hstore(symtab,key->str_ptr,str_make("1")); |
1195 | str_free(key); |
1196 | set_array_base = TRUE; |
1197 | return arg; |
1198 | } |
a687059c |
1199 | |
748a9306 |
1200 | int |
a687059c |
1201 | rememberargs(arg) |
1202 | int arg; |
1203 | { |
1204 | int type; |
1205 | STR *str; |
1206 | |
1207 | if (!arg) |
1208 | return arg; |
1209 | type = ops[arg].ival & 255; |
1210 | if (type == OCOMMA) { |
1211 | rememberargs(ops[arg+1].ival); |
1212 | rememberargs(ops[arg+3].ival); |
1213 | } |
1214 | else if (type == OVAR) { |
1215 | str = str_new(0); |
1216 | hstore(curarghash,ops[ops[arg+1].ival+1].cval,str); |
1217 | } |
1218 | else |
1219 | fatal("panic: unknown argument type %d, line %d\n",type,line); |
1220 | return arg; |
1221 | } |
1222 | |
748a9306 |
1223 | int |
a687059c |
1224 | aryrefarg(arg) |
1225 | int arg; |
1226 | { |
1227 | int type = ops[arg].ival & 255; |
1228 | STR *str; |
1229 | |
1230 | if (type != OSTRING) |
1231 | fatal("panic: aryrefarg %d, line %d\n",type,line); |
1232 | str = hfetch(curarghash,ops[arg+1].cval); |
1233 | if (str) |
1234 | str_set(str,"*"); |
1235 | return arg; |
1236 | } |
1237 | |
748a9306 |
1238 | int |
a687059c |
1239 | fixfargs(name,arg,prevargs) |
1240 | int name; |
1241 | int arg; |
1242 | int prevargs; |
1243 | { |
1244 | int type; |
1245 | STR *str; |
1246 | int numargs; |
1247 | |
1248 | if (!arg) |
1249 | return prevargs; |
1250 | type = ops[arg].ival & 255; |
1251 | if (type == OCOMMA) { |
1252 | numargs = fixfargs(name,ops[arg+1].ival,prevargs); |
1253 | numargs = fixfargs(name,ops[arg+3].ival,numargs); |
1254 | } |
1255 | else if (type == OVAR) { |
1256 | str = hfetch(curarghash,ops[ops[arg+1].ival+1].cval); |
1257 | if (strEQ(str_get(str),"*")) { |
1258 | char tmpbuf[128]; |
1259 | |
1260 | str_set(str,""); /* in case another routine has this */ |
1261 | ops[arg].ival &= ~255; |
1262 | ops[arg].ival |= OSTAR; |
1263 | sprintf(tmpbuf,"%s:%d",ops[name+1].cval,prevargs); |
1264 | fprintf(stderr,"Adding %s\n",tmpbuf); |
1265 | str = str_new(0); |
1266 | str_set(str,"*"); |
1267 | hstore(curarghash,tmpbuf,str); |
1268 | } |
1269 | numargs = prevargs + 1; |
1270 | } |
1271 | else |
1272 | fatal("panic: unknown argument type %d, arg %d, line %d\n", |
39c3038c |
1273 | type,prevargs+1,line); |
a687059c |
1274 | return numargs; |
1275 | } |
1276 | |
748a9306 |
1277 | int |
a687059c |
1278 | fixrargs(name,arg,prevargs) |
1279 | char *name; |
1280 | int arg; |
1281 | int prevargs; |
1282 | { |
1283 | int type; |
1284 | STR *str; |
1285 | int numargs; |
1286 | |
1287 | if (!arg) |
1288 | return prevargs; |
1289 | type = ops[arg].ival & 255; |
1290 | if (type == OCOMMA) { |
1291 | numargs = fixrargs(name,ops[arg+1].ival,prevargs); |
1292 | numargs = fixrargs(name,ops[arg+3].ival,numargs); |
1293 | } |
1294 | else { |
1295 | char tmpbuf[128]; |
1296 | |
1297 | sprintf(tmpbuf,"%s:%d",name,prevargs); |
1298 | str = hfetch(curarghash,tmpbuf); |
a687059c |
1299 | if (str && strEQ(str->str_ptr,"*")) { |
1300 | if (type == OVAR || type == OSTAR) { |
1301 | ops[arg].ival &= ~255; |
1302 | ops[arg].ival |= OSTAR; |
1303 | } |
1304 | else |
1305 | fatal("Can't pass expression by reference as arg %d of %s\n", |
1306 | prevargs+1, name); |
1307 | } |
1308 | numargs = prevargs + 1; |
1309 | } |
1310 | return numargs; |
1311 | } |