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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); |
207d4cd0 |
156 | str = str_make(STARTPERL); |
157 | str_cat(str, "\neval 'exec perl -S $0 \"$@\"'\n\ |
378cc40b |
158 | if $running_under_some_shell;\n\ |
159 | # this emulates #! processing on NIH machines.\n\ |
160 | # (remove #! line above if indigestible)\n\n"); |
a559c259 |
161 | str_cat(str, |
a0d0e21e |
162 | "eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_0-9]+=)(.*)/ && shift;\n"); |
a559c259 |
163 | str_cat(str, |
164 | " # process any FOO=bar switches\n\n"); |
8d063cd8 |
165 | if (do_opens && opens) { |
166 | str_scat(str,opens); |
167 | str_free(opens); |
168 | str_cat(str,"\n"); |
169 | } |
170 | str_scat(str,tmpstr); |
171 | str_free(tmpstr); |
172 | #ifdef DEBUGGING |
173 | if (!(debug & 16)) |
174 | #endif |
175 | fixup(str); |
176 | putlines(str); |
378cc40b |
177 | if (checkers) { |
178 | fprintf(stderr, |
179 | "Please check my work on the %d line%s I've marked with \"#???\".\n", |
180 | checkers, checkers == 1 ? "" : "s" ); |
181 | fprintf(stderr, |
182 | "The operation I've selected may be wrong for the operand types.\n"); |
183 | } |
8d063cd8 |
184 | exit(0); |
185 | } |
186 | |
187 | #define RETURN(retval) return (bufptr = s,retval) |
188 | #define XTERM(retval) return (expectterm = TRUE,bufptr = s,retval) |
189 | #define XOP(retval) return (expectterm = FALSE,bufptr = s,retval) |
a687059c |
190 | #define ID(x) return (yylval=string(x,0),expectterm = FALSE,bufptr = s,idtype) |
191 | |
192 | int idtype; |
8d063cd8 |
193 | |
748a9306 |
194 | int |
8d063cd8 |
195 | yylex() |
196 | { |
197 | register char *s = bufptr; |
198 | register char *d; |
199 | register int tmp; |
200 | |
201 | retry: |
202 | #ifdef YYDEBUG |
203 | if (yydebug) |
a0d0e21e |
204 | if (strchr(s,'\n')) |
8d063cd8 |
205 | fprintf(stderr,"Tokener at %s",s); |
206 | else |
207 | fprintf(stderr,"Tokener at %s\n",s); |
208 | #endif |
209 | switch (*s) { |
210 | default: |
211 | fprintf(stderr, |
212 | "Unrecognized character %c in file %s line %d--ignoring.\n", |
213 | *s++,filename,line); |
214 | goto retry; |
215 | case '\\': |
bf10efe7 |
216 | s++; |
217 | if (*s && *s != '\n') { |
218 | yyerror("Ignoring spurious backslash"); |
219 | goto retry; |
220 | } |
221 | /*FALLSTHROUGH*/ |
8d063cd8 |
222 | case 0: |
223 | s = str_get(linestr); |
224 | *s = '\0'; |
225 | if (!rsfp) |
226 | RETURN(0); |
227 | line++; |
228 | if ((s = str_gets(linestr, rsfp)) == Nullch) { |
229 | if (rsfp != stdin) |
230 | fclose(rsfp); |
231 | rsfp = Nullfp; |
232 | s = str_get(linestr); |
233 | RETURN(0); |
234 | } |
235 | goto retry; |
236 | case ' ': case '\t': |
237 | s++; |
238 | goto retry; |
239 | case '\n': |
240 | *s = '\0'; |
241 | XTERM(NEWLINE); |
242 | case '#': |
243 | yylval = string(s,0); |
244 | *s = '\0'; |
245 | XTERM(COMMENT); |
246 | case ';': |
247 | tmp = *s++; |
248 | if (*s == '\n') { |
249 | s++; |
250 | XTERM(SEMINEW); |
251 | } |
252 | XTERM(tmp); |
253 | case '(': |
a687059c |
254 | tmp = *s++; |
255 | XTERM(tmp); |
8d063cd8 |
256 | case '{': |
257 | case '[': |
258 | case ')': |
259 | case ']': |
a687059c |
260 | case '?': |
261 | case ':': |
8d063cd8 |
262 | tmp = *s++; |
263 | XOP(tmp); |
264 | case 127: |
265 | s++; |
266 | XTERM('}'); |
267 | case '}': |
268 | for (d = s + 1; isspace(*d); d++) ; |
269 | if (!*d) |
270 | s = d - 1; |
271 | *s = 127; |
272 | XTERM(';'); |
273 | case ',': |
274 | tmp = *s++; |
275 | XTERM(tmp); |
276 | case '~': |
277 | s++; |
378cc40b |
278 | yylval = string("~",1); |
8d063cd8 |
279 | XTERM(MATCHOP); |
280 | case '+': |
281 | case '-': |
282 | if (s[1] == *s) { |
283 | s++; |
284 | if (*s++ == '+') |
285 | XTERM(INCR); |
286 | else |
287 | XTERM(DECR); |
288 | } |
289 | /* FALL THROUGH */ |
290 | case '*': |
291 | case '%': |
a687059c |
292 | case '^': |
8d063cd8 |
293 | tmp = *s++; |
294 | if (*s == '=') { |
a687059c |
295 | if (tmp == '^') |
296 | yylval = string("**=",3); |
297 | else |
298 | yylval = string(s-1,2); |
8d063cd8 |
299 | s++; |
300 | XTERM(ASGNOP); |
301 | } |
302 | XTERM(tmp); |
303 | case '&': |
304 | s++; |
305 | tmp = *s++; |
306 | if (tmp == '&') |
307 | XTERM(ANDAND); |
308 | s--; |
309 | XTERM('&'); |
310 | case '|': |
311 | s++; |
312 | tmp = *s++; |
313 | if (tmp == '|') |
314 | XTERM(OROR); |
315 | s--; |
a687059c |
316 | while (*s == ' ' || *s == '\t') |
317 | s++; |
318 | if (strnEQ(s,"getline",7)) |
319 | XTERM('p'); |
320 | else |
321 | XTERM('|'); |
8d063cd8 |
322 | case '=': |
323 | s++; |
324 | tmp = *s++; |
325 | if (tmp == '=') { |
326 | yylval = string("==",2); |
327 | XTERM(RELOP); |
328 | } |
329 | s--; |
330 | yylval = string("=",1); |
331 | XTERM(ASGNOP); |
332 | case '!': |
333 | s++; |
334 | tmp = *s++; |
335 | if (tmp == '=') { |
336 | yylval = string("!=",2); |
337 | XTERM(RELOP); |
338 | } |
339 | if (tmp == '~') { |
340 | yylval = string("!~",2); |
341 | XTERM(MATCHOP); |
342 | } |
343 | s--; |
344 | XTERM(NOT); |
345 | case '<': |
346 | s++; |
347 | tmp = *s++; |
348 | if (tmp == '=') { |
349 | yylval = string("<=",2); |
350 | XTERM(RELOP); |
351 | } |
352 | s--; |
a687059c |
353 | XTERM('<'); |
8d063cd8 |
354 | case '>': |
355 | s++; |
356 | tmp = *s++; |
378cc40b |
357 | if (tmp == '>') { |
358 | yylval = string(">>",2); |
359 | XTERM(GRGR); |
360 | } |
8d063cd8 |
361 | if (tmp == '=') { |
362 | yylval = string(">=",2); |
363 | XTERM(RELOP); |
364 | } |
365 | s--; |
a687059c |
366 | XTERM('>'); |
8d063cd8 |
367 | |
368 | #define SNARFWORD \ |
369 | d = tokenbuf; \ |
370 | while (isalpha(*s) || isdigit(*s) || *s == '_') \ |
371 | *d++ = *s++; \ |
372 | *d = '\0'; \ |
a687059c |
373 | d = tokenbuf; \ |
374 | if (*s == '(') \ |
375 | idtype = USERFUN; \ |
376 | else \ |
377 | idtype = VAR; |
8d063cd8 |
378 | |
379 | case '$': |
380 | s++; |
381 | if (*s == '0') { |
382 | s++; |
383 | do_chop = TRUE; |
384 | need_entire = TRUE; |
a687059c |
385 | idtype = VAR; |
8d063cd8 |
386 | ID("0"); |
387 | } |
388 | do_split = TRUE; |
389 | if (isdigit(*s)) { |
390 | for (d = s; isdigit(*s); s++) ; |
391 | yylval = string(d,s-d); |
392 | tmp = atoi(d); |
393 | if (tmp > maxfld) |
394 | maxfld = tmp; |
395 | XOP(FIELD); |
396 | } |
397 | split_to_array = set_array_base = TRUE; |
398 | XOP(VFIELD); |
399 | |
400 | case '/': /* may either be division or pattern */ |
401 | if (expectterm) { |
402 | s = scanpat(s); |
403 | XTERM(REGEX); |
404 | } |
405 | tmp = *s++; |
406 | if (*s == '=') { |
407 | yylval = string("/=",2); |
408 | s++; |
409 | XTERM(ASGNOP); |
410 | } |
411 | XTERM(tmp); |
412 | |
413 | case '0': case '1': case '2': case '3': case '4': |
a687059c |
414 | case '5': case '6': case '7': case '8': case '9': case '.': |
8d063cd8 |
415 | s = scannum(s); |
416 | XOP(NUMBER); |
417 | case '"': |
418 | s++; |
419 | s = cpy2(tokenbuf,s,s[-1]); |
420 | if (!*s) |
421 | fatal("String not terminated:\n%s",str_get(linestr)); |
422 | s++; |
423 | yylval = string(tokenbuf,0); |
424 | XOP(STRING); |
425 | |
426 | case 'a': case 'A': |
427 | SNARFWORD; |
a687059c |
428 | if (strEQ(d,"ARGC")) |
429 | set_array_base = TRUE; |
430 | if (strEQ(d,"ARGV")) { |
431 | yylval=numary(string("ARGV",0)); |
432 | XOP(VAR); |
433 | } |
434 | if (strEQ(d,"atan2")) { |
435 | yylval = OATAN2; |
436 | XTERM(FUNN); |
437 | } |
8d063cd8 |
438 | ID(d); |
439 | case 'b': case 'B': |
440 | SNARFWORD; |
441 | if (strEQ(d,"break")) |
442 | XTERM(BREAK); |
443 | if (strEQ(d,"BEGIN")) |
444 | XTERM(BEGIN); |
445 | ID(d); |
446 | case 'c': case 'C': |
447 | SNARFWORD; |
448 | if (strEQ(d,"continue")) |
449 | XTERM(CONTINUE); |
a687059c |
450 | if (strEQ(d,"cos")) { |
451 | yylval = OCOS; |
452 | XTERM(FUN1); |
453 | } |
454 | if (strEQ(d,"close")) { |
455 | do_fancy_opens = 1; |
456 | yylval = OCLOSE; |
457 | XTERM(FUN1); |
458 | } |
459 | if (strEQ(d,"chdir")) |
460 | *d = toupper(*d); |
461 | else if (strEQ(d,"crypt")) |
462 | *d = toupper(*d); |
463 | else if (strEQ(d,"chop")) |
464 | *d = toupper(*d); |
465 | else if (strEQ(d,"chmod")) |
466 | *d = toupper(*d); |
467 | else if (strEQ(d,"chown")) |
468 | *d = toupper(*d); |
8d063cd8 |
469 | ID(d); |
470 | case 'd': case 'D': |
471 | SNARFWORD; |
a687059c |
472 | if (strEQ(d,"do")) |
473 | XTERM(DO); |
474 | if (strEQ(d,"delete")) |
475 | XTERM(DELETE); |
476 | if (strEQ(d,"die")) |
477 | *d = toupper(*d); |
8d063cd8 |
478 | ID(d); |
479 | case 'e': case 'E': |
480 | SNARFWORD; |
481 | if (strEQ(d,"END")) |
482 | XTERM(END); |
483 | if (strEQ(d,"else")) |
484 | XTERM(ELSE); |
485 | if (strEQ(d,"exit")) { |
486 | saw_line_op = TRUE; |
487 | XTERM(EXIT); |
488 | } |
489 | if (strEQ(d,"exp")) { |
490 | yylval = OEXP; |
491 | XTERM(FUN1); |
492 | } |
a687059c |
493 | if (strEQ(d,"elsif")) |
494 | *d = toupper(*d); |
495 | else if (strEQ(d,"eq")) |
496 | *d = toupper(*d); |
497 | else if (strEQ(d,"eval")) |
498 | *d = toupper(*d); |
499 | else if (strEQ(d,"eof")) |
500 | *d = toupper(*d); |
501 | else if (strEQ(d,"each")) |
502 | *d = toupper(*d); |
503 | else if (strEQ(d,"exec")) |
504 | *d = toupper(*d); |
8d063cd8 |
505 | ID(d); |
506 | case 'f': case 'F': |
507 | SNARFWORD; |
508 | if (strEQ(d,"FS")) { |
509 | saw_FS++; |
510 | if (saw_FS == 1 && in_begin) { |
511 | for (d = s; *d && isspace(*d); d++) ; |
512 | if (*d == '=') { |
513 | for (d++; *d && isspace(*d); d++) ; |
514 | if (*d == '"' && d[2] == '"') |
515 | const_FS = d[1]; |
516 | } |
517 | } |
518 | ID(tokenbuf); |
519 | } |
8d063cd8 |
520 | if (strEQ(d,"for")) |
521 | XTERM(FOR); |
a687059c |
522 | else if (strEQ(d,"function")) |
523 | XTERM(FUNCTION); |
524 | if (strEQ(d,"FILENAME")) |
525 | d = "ARGV"; |
526 | if (strEQ(d,"foreach")) |
527 | *d = toupper(*d); |
528 | else if (strEQ(d,"format")) |
529 | *d = toupper(*d); |
530 | else if (strEQ(d,"fork")) |
531 | *d = toupper(*d); |
532 | else if (strEQ(d,"fh")) |
533 | *d = toupper(*d); |
8d063cd8 |
534 | ID(d); |
535 | case 'g': case 'G': |
536 | SNARFWORD; |
537 | if (strEQ(d,"getline")) |
538 | XTERM(GETLINE); |
a687059c |
539 | if (strEQ(d,"gsub")) |
540 | XTERM(GSUB); |
541 | if (strEQ(d,"ge")) |
542 | *d = toupper(*d); |
543 | else if (strEQ(d,"gt")) |
544 | *d = toupper(*d); |
545 | else if (strEQ(d,"goto")) |
546 | *d = toupper(*d); |
547 | else if (strEQ(d,"gmtime")) |
548 | *d = toupper(*d); |
8d063cd8 |
549 | ID(d); |
550 | case 'h': case 'H': |
551 | SNARFWORD; |
a687059c |
552 | if (strEQ(d,"hex")) |
553 | *d = toupper(*d); |
8d063cd8 |
554 | ID(d); |
555 | case 'i': case 'I': |
556 | SNARFWORD; |
557 | if (strEQ(d,"if")) |
558 | XTERM(IF); |
559 | if (strEQ(d,"in")) |
560 | XTERM(IN); |
561 | if (strEQ(d,"index")) { |
562 | set_array_base = TRUE; |
563 | XTERM(INDEX); |
564 | } |
565 | if (strEQ(d,"int")) { |
566 | yylval = OINT; |
567 | XTERM(FUN1); |
568 | } |
569 | ID(d); |
570 | case 'j': case 'J': |
571 | SNARFWORD; |
a687059c |
572 | if (strEQ(d,"join")) |
573 | *d = toupper(*d); |
8d063cd8 |
574 | ID(d); |
575 | case 'k': case 'K': |
576 | SNARFWORD; |
a687059c |
577 | if (strEQ(d,"keys")) |
578 | *d = toupper(*d); |
579 | else if (strEQ(d,"kill")) |
580 | *d = toupper(*d); |
8d063cd8 |
581 | ID(d); |
582 | case 'l': case 'L': |
583 | SNARFWORD; |
584 | if (strEQ(d,"length")) { |
585 | yylval = OLENGTH; |
586 | XTERM(FUN1); |
587 | } |
588 | if (strEQ(d,"log")) { |
589 | yylval = OLOG; |
590 | XTERM(FUN1); |
591 | } |
a687059c |
592 | if (strEQ(d,"last")) |
593 | *d = toupper(*d); |
594 | else if (strEQ(d,"local")) |
595 | *d = toupper(*d); |
596 | else if (strEQ(d,"lt")) |
597 | *d = toupper(*d); |
598 | else if (strEQ(d,"le")) |
599 | *d = toupper(*d); |
600 | else if (strEQ(d,"locatime")) |
601 | *d = toupper(*d); |
602 | else if (strEQ(d,"link")) |
603 | *d = toupper(*d); |
8d063cd8 |
604 | ID(d); |
605 | case 'm': case 'M': |
606 | SNARFWORD; |
a687059c |
607 | if (strEQ(d,"match")) { |
608 | set_array_base = TRUE; |
609 | XTERM(MATCH); |
610 | } |
611 | if (strEQ(d,"m")) |
612 | *d = toupper(*d); |
8d063cd8 |
613 | ID(d); |
614 | case 'n': case 'N': |
615 | SNARFWORD; |
616 | if (strEQ(d,"NF")) |
87250799 |
617 | do_chop = do_split = split_to_array = set_array_base = TRUE; |
8d063cd8 |
618 | if (strEQ(d,"next")) { |
619 | saw_line_op = TRUE; |
620 | XTERM(NEXT); |
621 | } |
a687059c |
622 | if (strEQ(d,"ne")) |
623 | *d = toupper(*d); |
8d063cd8 |
624 | ID(d); |
625 | case 'o': case 'O': |
626 | SNARFWORD; |
627 | if (strEQ(d,"ORS")) { |
628 | saw_ORS = TRUE; |
a687059c |
629 | d = "\\"; |
8d063cd8 |
630 | } |
631 | if (strEQ(d,"OFS")) { |
632 | saw_OFS = TRUE; |
a687059c |
633 | d = ","; |
8d063cd8 |
634 | } |
635 | if (strEQ(d,"OFMT")) { |
a687059c |
636 | d = "#"; |
8d063cd8 |
637 | } |
a687059c |
638 | if (strEQ(d,"open")) |
639 | *d = toupper(*d); |
640 | else if (strEQ(d,"ord")) |
641 | *d = toupper(*d); |
642 | else if (strEQ(d,"oct")) |
643 | *d = toupper(*d); |
8d063cd8 |
644 | ID(d); |
645 | case 'p': case 'P': |
646 | SNARFWORD; |
647 | if (strEQ(d,"print")) { |
648 | XTERM(PRINT); |
649 | } |
650 | if (strEQ(d,"printf")) { |
651 | XTERM(PRINTF); |
652 | } |
a687059c |
653 | if (strEQ(d,"push")) |
654 | *d = toupper(*d); |
655 | else if (strEQ(d,"pop")) |
656 | *d = toupper(*d); |
8d063cd8 |
657 | ID(d); |
658 | case 'q': case 'Q': |
659 | SNARFWORD; |
660 | ID(d); |
661 | case 'r': case 'R': |
662 | SNARFWORD; |
663 | if (strEQ(d,"RS")) { |
a687059c |
664 | d = "/"; |
8d063cd8 |
665 | saw_RS = TRUE; |
666 | } |
a687059c |
667 | if (strEQ(d,"rand")) { |
668 | yylval = ORAND; |
669 | XTERM(FUN1); |
670 | } |
671 | if (strEQ(d,"return")) |
672 | XTERM(RET); |
673 | if (strEQ(d,"reset")) |
674 | *d = toupper(*d); |
675 | else if (strEQ(d,"redo")) |
676 | *d = toupper(*d); |
677 | else if (strEQ(d,"rename")) |
678 | *d = toupper(*d); |
8d063cd8 |
679 | ID(d); |
680 | case 's': case 'S': |
681 | SNARFWORD; |
682 | if (strEQ(d,"split")) { |
683 | set_array_base = TRUE; |
684 | XOP(SPLIT); |
685 | } |
686 | if (strEQ(d,"substr")) { |
687 | set_array_base = TRUE; |
688 | XTERM(SUBSTR); |
689 | } |
a687059c |
690 | if (strEQ(d,"sub")) |
691 | XTERM(SUB); |
8d063cd8 |
692 | if (strEQ(d,"sprintf")) |
693 | XTERM(SPRINTF); |
694 | if (strEQ(d,"sqrt")) { |
695 | yylval = OSQRT; |
696 | XTERM(FUN1); |
697 | } |
a687059c |
698 | if (strEQ(d,"SUBSEP")) { |
699 | d = ";"; |
700 | } |
701 | if (strEQ(d,"sin")) { |
702 | yylval = OSIN; |
703 | XTERM(FUN1); |
704 | } |
705 | if (strEQ(d,"srand")) { |
706 | yylval = OSRAND; |
707 | XTERM(FUN1); |
708 | } |
709 | if (strEQ(d,"system")) { |
710 | yylval = OSYSTEM; |
711 | XTERM(FUN1); |
712 | } |
713 | if (strEQ(d,"s")) |
714 | *d = toupper(*d); |
715 | else if (strEQ(d,"shift")) |
716 | *d = toupper(*d); |
717 | else if (strEQ(d,"select")) |
718 | *d = toupper(*d); |
719 | else if (strEQ(d,"seek")) |
720 | *d = toupper(*d); |
721 | else if (strEQ(d,"stat")) |
722 | *d = toupper(*d); |
723 | else if (strEQ(d,"study")) |
724 | *d = toupper(*d); |
725 | else if (strEQ(d,"sleep")) |
726 | *d = toupper(*d); |
727 | else if (strEQ(d,"symlink")) |
728 | *d = toupper(*d); |
729 | else if (strEQ(d,"sort")) |
730 | *d = toupper(*d); |
8d063cd8 |
731 | ID(d); |
732 | case 't': case 'T': |
733 | SNARFWORD; |
a687059c |
734 | if (strEQ(d,"tr")) |
735 | *d = toupper(*d); |
736 | else if (strEQ(d,"tell")) |
737 | *d = toupper(*d); |
738 | else if (strEQ(d,"time")) |
739 | *d = toupper(*d); |
740 | else if (strEQ(d,"times")) |
741 | *d = toupper(*d); |
8d063cd8 |
742 | ID(d); |
743 | case 'u': case 'U': |
744 | SNARFWORD; |
a687059c |
745 | if (strEQ(d,"until")) |
746 | *d = toupper(*d); |
747 | else if (strEQ(d,"unless")) |
748 | *d = toupper(*d); |
749 | else if (strEQ(d,"umask")) |
750 | *d = toupper(*d); |
751 | else if (strEQ(d,"unshift")) |
752 | *d = toupper(*d); |
753 | else if (strEQ(d,"unlink")) |
754 | *d = toupper(*d); |
755 | else if (strEQ(d,"utime")) |
756 | *d = toupper(*d); |
8d063cd8 |
757 | ID(d); |
758 | case 'v': case 'V': |
759 | SNARFWORD; |
a687059c |
760 | if (strEQ(d,"values")) |
761 | *d = toupper(*d); |
8d063cd8 |
762 | ID(d); |
763 | case 'w': case 'W': |
764 | SNARFWORD; |
765 | if (strEQ(d,"while")) |
766 | XTERM(WHILE); |
a687059c |
767 | if (strEQ(d,"write")) |
768 | *d = toupper(*d); |
769 | else if (strEQ(d,"wait")) |
770 | *d = toupper(*d); |
8d063cd8 |
771 | ID(d); |
772 | case 'x': case 'X': |
773 | SNARFWORD; |
a687059c |
774 | if (strEQ(d,"x")) |
775 | *d = toupper(*d); |
8d063cd8 |
776 | ID(d); |
777 | case 'y': case 'Y': |
778 | SNARFWORD; |
a687059c |
779 | if (strEQ(d,"y")) |
780 | *d = toupper(*d); |
8d063cd8 |
781 | ID(d); |
782 | case 'z': case 'Z': |
783 | SNARFWORD; |
784 | ID(d); |
785 | } |
786 | } |
787 | |
788 | char * |
789 | scanpat(s) |
790 | register char *s; |
791 | { |
792 | register char *d; |
793 | |
794 | switch (*s++) { |
795 | case '/': |
796 | break; |
797 | default: |
798 | fatal("Search pattern not found:\n%s",str_get(linestr)); |
799 | } |
378cc40b |
800 | |
801 | d = tokenbuf; |
802 | for (; *s; s++,d++) { |
803 | if (*s == '\\') { |
804 | if (s[1] == '/') |
805 | *d++ = *s++; |
806 | else if (s[1] == '\\') |
807 | *d++ = *s++; |
bf10efe7 |
808 | else if (s[1] == '[') |
809 | *d++ = *s++; |
378cc40b |
810 | } |
811 | else if (*s == '[') { |
812 | *d++ = *s++; |
813 | do { |
814 | if (*s == '\\' && s[1]) |
815 | *d++ = *s++; |
816 | if (*s == '/' || (*s == '-' && s[1] == ']')) |
817 | *d++ = '\\'; |
818 | *d++ = *s++; |
819 | } while (*s && *s != ']'); |
820 | } |
821 | else if (*s == '/') |
822 | break; |
823 | *d = *s; |
824 | } |
825 | *d = '\0'; |
826 | |
8d063cd8 |
827 | if (!*s) |
828 | fatal("Search pattern not terminated:\n%s",str_get(linestr)); |
829 | s++; |
830 | yylval = string(tokenbuf,0); |
831 | return s; |
832 | } |
833 | |
75f92628 |
834 | void |
8d063cd8 |
835 | yyerror(s) |
836 | char *s; |
837 | { |
838 | fprintf(stderr,"%s in file %s at line %d\n", |
839 | s,filename,line); |
840 | } |
841 | |
842 | char * |
843 | scannum(s) |
844 | register char *s; |
845 | { |
846 | register char *d; |
847 | |
848 | switch (*s) { |
849 | case '1': case '2': case '3': case '4': case '5': |
850 | case '6': case '7': case '8': case '9': case '0' : case '.': |
851 | d = tokenbuf; |
378cc40b |
852 | while (isdigit(*s)) { |
8d063cd8 |
853 | *d++ = *s++; |
378cc40b |
854 | } |
bf10efe7 |
855 | if (*s == '.') { |
856 | if (isdigit(s[1])) { |
378cc40b |
857 | *d++ = *s++; |
bf10efe7 |
858 | while (isdigit(*s)) { |
859 | *d++ = *s++; |
860 | } |
378cc40b |
861 | } |
bf10efe7 |
862 | else |
863 | s++; |
378cc40b |
864 | } |
a0d0e21e |
865 | if (strchr("eE",*s) && strchr("+-0123456789",s[1])) { |
8d063cd8 |
866 | *d++ = *s++; |
378cc40b |
867 | if (*s == '+' || *s == '-') |
868 | *d++ = *s++; |
869 | while (isdigit(*s)) |
870 | *d++ = *s++; |
871 | } |
8d063cd8 |
872 | *d = '\0'; |
873 | yylval = string(tokenbuf,0); |
874 | break; |
875 | } |
876 | return s; |
877 | } |
878 | |
748a9306 |
879 | int |
8d063cd8 |
880 | string(ptr,len) |
881 | char *ptr; |
748a9306 |
882 | int len; |
8d063cd8 |
883 | { |
884 | int retval = mop; |
885 | |
886 | ops[mop++].ival = OSTRING + (1<<8); |
887 | if (!len) |
888 | len = strlen(ptr); |
889 | ops[mop].cval = safemalloc(len+1); |
890 | strncpy(ops[mop].cval,ptr,len); |
891 | ops[mop++].cval[len] = '\0'; |
a687059c |
892 | if (mop >= OPSMAX) |
893 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
894 | return retval; |
895 | } |
896 | |
748a9306 |
897 | int |
8d063cd8 |
898 | oper0(type) |
899 | int type; |
900 | { |
901 | int retval = mop; |
902 | |
903 | if (type > 255) |
904 | fatal("type > 255 (%d)\n",type); |
905 | ops[mop++].ival = type; |
a687059c |
906 | if (mop >= OPSMAX) |
907 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
908 | return retval; |
909 | } |
910 | |
748a9306 |
911 | int |
8d063cd8 |
912 | oper1(type,arg1) |
913 | int type; |
914 | int arg1; |
915 | { |
916 | int retval = mop; |
917 | |
918 | if (type > 255) |
919 | fatal("type > 255 (%d)\n",type); |
920 | ops[mop++].ival = type + (1<<8); |
921 | ops[mop++].ival = arg1; |
a687059c |
922 | if (mop >= OPSMAX) |
923 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
924 | return retval; |
925 | } |
926 | |
748a9306 |
927 | int |
8d063cd8 |
928 | oper2(type,arg1,arg2) |
929 | int type; |
930 | int arg1; |
931 | int arg2; |
932 | { |
933 | int retval = mop; |
934 | |
935 | if (type > 255) |
936 | fatal("type > 255 (%d)\n",type); |
937 | ops[mop++].ival = type + (2<<8); |
938 | ops[mop++].ival = arg1; |
939 | ops[mop++].ival = arg2; |
a687059c |
940 | if (mop >= OPSMAX) |
941 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
942 | return retval; |
943 | } |
944 | |
748a9306 |
945 | int |
8d063cd8 |
946 | oper3(type,arg1,arg2,arg3) |
947 | int type; |
948 | int arg1; |
949 | int arg2; |
950 | int arg3; |
951 | { |
952 | int retval = mop; |
953 | |
954 | if (type > 255) |
955 | fatal("type > 255 (%d)\n",type); |
956 | ops[mop++].ival = type + (3<<8); |
957 | ops[mop++].ival = arg1; |
958 | ops[mop++].ival = arg2; |
959 | ops[mop++].ival = arg3; |
a687059c |
960 | if (mop >= OPSMAX) |
961 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
962 | return retval; |
963 | } |
964 | |
748a9306 |
965 | int |
8d063cd8 |
966 | oper4(type,arg1,arg2,arg3,arg4) |
967 | int type; |
968 | int arg1; |
969 | int arg2; |
970 | int arg3; |
971 | int arg4; |
972 | { |
973 | int retval = mop; |
974 | |
975 | if (type > 255) |
976 | fatal("type > 255 (%d)\n",type); |
977 | ops[mop++].ival = type + (4<<8); |
978 | ops[mop++].ival = arg1; |
979 | ops[mop++].ival = arg2; |
980 | ops[mop++].ival = arg3; |
981 | ops[mop++].ival = arg4; |
a687059c |
982 | if (mop >= OPSMAX) |
983 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
984 | return retval; |
985 | } |
986 | |
748a9306 |
987 | int |
8d063cd8 |
988 | oper5(type,arg1,arg2,arg3,arg4,arg5) |
989 | int type; |
990 | int arg1; |
991 | int arg2; |
992 | int arg3; |
993 | int arg4; |
994 | int arg5; |
995 | { |
996 | int retval = mop; |
997 | |
998 | if (type > 255) |
999 | fatal("type > 255 (%d)\n",type); |
1000 | ops[mop++].ival = type + (5<<8); |
1001 | ops[mop++].ival = arg1; |
1002 | ops[mop++].ival = arg2; |
1003 | ops[mop++].ival = arg3; |
1004 | ops[mop++].ival = arg4; |
1005 | ops[mop++].ival = arg5; |
a687059c |
1006 | if (mop >= OPSMAX) |
1007 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
1008 | return retval; |
1009 | } |
1010 | |
1011 | int depth = 0; |
1012 | |
75f92628 |
1013 | void |
8d063cd8 |
1014 | dump(branch) |
1015 | int branch; |
1016 | { |
1017 | register int type; |
1018 | register int len; |
1019 | register int i; |
1020 | |
1021 | type = ops[branch].ival; |
1022 | len = type >> 8; |
1023 | type &= 255; |
1024 | for (i=depth; i; i--) |
1025 | printf(" "); |
1026 | if (type == OSTRING) { |
1027 | printf("%-5d\"%s\"\n",branch,ops[branch+1].cval); |
1028 | } |
1029 | else { |
1030 | printf("(%-5d%s %d\n",branch,opname[type],len); |
1031 | depth++; |
1032 | for (i=1; i<=len; i++) |
1033 | dump(ops[branch+i].ival); |
1034 | depth--; |
1035 | for (i=depth; i; i--) |
1036 | printf(" "); |
1037 | printf(")\n"); |
1038 | } |
1039 | } |
1040 | |
748a9306 |
1041 | int |
8d063cd8 |
1042 | bl(arg,maybe) |
1043 | int arg; |
1044 | int maybe; |
1045 | { |
1046 | if (!arg) |
1047 | return 0; |
1048 | else if ((ops[arg].ival & 255) != OBLOCK) |
1049 | return oper2(OBLOCK,arg,maybe); |
378cc40b |
1050 | else if ((ops[arg].ival >> 8) < 2) |
8d063cd8 |
1051 | return oper2(OBLOCK,ops[arg+1].ival,maybe); |
1052 | else |
1053 | return arg; |
1054 | } |
1055 | |
75f92628 |
1056 | void |
8d063cd8 |
1057 | fixup(str) |
1058 | STR *str; |
1059 | { |
1060 | register char *s; |
1061 | register char *t; |
1062 | |
1063 | for (s = str->str_ptr; *s; s++) { |
1064 | if (*s == ';' && s[1] == ' ' && s[2] == '\n') { |
1065 | strcpy(s+1,s+2); |
1066 | s++; |
1067 | } |
1068 | else if (*s == '\n') { |
1069 | for (t = s+1; isspace(*t & 127); t++) ; |
1070 | t--; |
1071 | while (isspace(*t & 127) && *t != '\n') t--; |
1072 | if (*t == '\n' && t-s > 1) { |
1073 | if (s[-1] == '{') |
1074 | s--; |
1075 | strcpy(s+1,t); |
1076 | } |
1077 | s++; |
1078 | } |
1079 | } |
1080 | } |
1081 | |
75f92628 |
1082 | void |
8d063cd8 |
1083 | putlines(str) |
1084 | STR *str; |
1085 | { |
1086 | register char *d, *s, *t, *e; |
1087 | register int pos, newpos; |
1088 | |
1089 | d = tokenbuf; |
1090 | pos = 0; |
1091 | for (s = str->str_ptr; *s; s++) { |
1092 | *d++ = *s; |
1093 | pos++; |
1094 | if (*s == '\n') { |
1095 | *d = '\0'; |
1096 | d = tokenbuf; |
1097 | pos = 0; |
1098 | putone(); |
1099 | } |
1100 | else if (*s == '\t') |
1101 | pos += 7; |
1102 | if (pos > 78) { /* split a long line? */ |
1103 | *d-- = '\0'; |
1104 | newpos = 0; |
1105 | for (t = tokenbuf; isspace(*t & 127); t++) { |
1106 | if (*t == '\t') |
1107 | newpos += 8; |
1108 | else |
1109 | newpos += 1; |
1110 | } |
1111 | e = d; |
1112 | while (d > tokenbuf && (*d != ' ' || d[-1] != ';')) |
1113 | d--; |
1114 | if (d < t+10) { |
1115 | d = e; |
1116 | while (d > tokenbuf && |
1117 | (*d != ' ' || d[-1] != '|' || d[-2] != '|') ) |
1118 | d--; |
1119 | } |
1120 | if (d < t+10) { |
1121 | d = e; |
1122 | while (d > tokenbuf && |
1123 | (*d != ' ' || d[-1] != '&' || d[-2] != '&') ) |
1124 | d--; |
1125 | } |
1126 | if (d < t+10) { |
1127 | d = e; |
1128 | while (d > tokenbuf && (*d != ' ' || d[-1] != ',')) |
1129 | d--; |
1130 | } |
1131 | if (d < t+10) { |
1132 | d = e; |
1133 | while (d > tokenbuf && *d != ' ') |
1134 | d--; |
1135 | } |
1136 | if (d > t+3) { |
fe14fcc3 |
1137 | char save[2048]; |
1138 | strcpy(save, d); |
1139 | *d = '\n'; |
1140 | d[1] = '\0'; |
8d063cd8 |
1141 | putone(); |
1142 | putchar('\n'); |
1143 | if (d[-1] != ';' && !(newpos % 4)) { |
1144 | *t++ = ' '; |
1145 | *t++ = ' '; |
1146 | newpos += 2; |
1147 | } |
fe14fcc3 |
1148 | strcpy(t,save+1); |
8d063cd8 |
1149 | newpos += strlen(t); |
1150 | d = t + strlen(t); |
1151 | pos = newpos; |
1152 | } |
1153 | else |
1154 | d = e + 1; |
1155 | } |
1156 | } |
1157 | } |
1158 | |
75f92628 |
1159 | void |
8d063cd8 |
1160 | putone() |
1161 | { |
1162 | register char *t; |
1163 | |
1164 | for (t = tokenbuf; *t; t++) { |
1165 | *t &= 127; |
1166 | if (*t == 127) { |
1167 | *t = ' '; |
1168 | strcpy(t+strlen(t)-1, "\t#???\n"); |
378cc40b |
1169 | checkers++; |
8d063cd8 |
1170 | } |
1171 | } |
1172 | t = tokenbuf; |
1173 | if (*t == '#') { |
1174 | if (strnEQ(t,"#!/bin/awk",10) || strnEQ(t,"#! /bin/awk",11)) |
1175 | return; |
378cc40b |
1176 | if (strnEQ(t,"#!/usr/bin/awk",14) || strnEQ(t,"#! /usr/bin/awk",15)) |
1177 | return; |
8d063cd8 |
1178 | } |
1179 | fputs(tokenbuf,stdout); |
1180 | } |
1181 | |
748a9306 |
1182 | int |
8d063cd8 |
1183 | numary(arg) |
1184 | int arg; |
1185 | { |
1186 | STR *key; |
1187 | int dummy; |
1188 | |
a687059c |
1189 | key = walk(0,0,arg,&dummy,P_MIN); |
8d063cd8 |
1190 | str_cat(key,"[]"); |
1191 | hstore(symtab,key->str_ptr,str_make("1")); |
1192 | str_free(key); |
1193 | set_array_base = TRUE; |
1194 | return arg; |
1195 | } |
a687059c |
1196 | |
748a9306 |
1197 | int |
a687059c |
1198 | rememberargs(arg) |
1199 | int arg; |
1200 | { |
1201 | int type; |
1202 | STR *str; |
1203 | |
1204 | if (!arg) |
1205 | return arg; |
1206 | type = ops[arg].ival & 255; |
1207 | if (type == OCOMMA) { |
1208 | rememberargs(ops[arg+1].ival); |
1209 | rememberargs(ops[arg+3].ival); |
1210 | } |
1211 | else if (type == OVAR) { |
1212 | str = str_new(0); |
1213 | hstore(curarghash,ops[ops[arg+1].ival+1].cval,str); |
1214 | } |
1215 | else |
1216 | fatal("panic: unknown argument type %d, line %d\n",type,line); |
1217 | return arg; |
1218 | } |
1219 | |
748a9306 |
1220 | int |
a687059c |
1221 | aryrefarg(arg) |
1222 | int arg; |
1223 | { |
1224 | int type = ops[arg].ival & 255; |
1225 | STR *str; |
1226 | |
1227 | if (type != OSTRING) |
1228 | fatal("panic: aryrefarg %d, line %d\n",type,line); |
1229 | str = hfetch(curarghash,ops[arg+1].cval); |
1230 | if (str) |
1231 | str_set(str,"*"); |
1232 | return arg; |
1233 | } |
1234 | |
748a9306 |
1235 | int |
a687059c |
1236 | fixfargs(name,arg,prevargs) |
1237 | int name; |
1238 | int arg; |
1239 | int prevargs; |
1240 | { |
1241 | int type; |
1242 | STR *str; |
1243 | int numargs; |
1244 | |
1245 | if (!arg) |
1246 | return prevargs; |
1247 | type = ops[arg].ival & 255; |
1248 | if (type == OCOMMA) { |
1249 | numargs = fixfargs(name,ops[arg+1].ival,prevargs); |
1250 | numargs = fixfargs(name,ops[arg+3].ival,numargs); |
1251 | } |
1252 | else if (type == OVAR) { |
1253 | str = hfetch(curarghash,ops[ops[arg+1].ival+1].cval); |
1254 | if (strEQ(str_get(str),"*")) { |
1255 | char tmpbuf[128]; |
1256 | |
1257 | str_set(str,""); /* in case another routine has this */ |
1258 | ops[arg].ival &= ~255; |
1259 | ops[arg].ival |= OSTAR; |
1260 | sprintf(tmpbuf,"%s:%d",ops[name+1].cval,prevargs); |
1261 | fprintf(stderr,"Adding %s\n",tmpbuf); |
1262 | str = str_new(0); |
1263 | str_set(str,"*"); |
1264 | hstore(curarghash,tmpbuf,str); |
1265 | } |
1266 | numargs = prevargs + 1; |
1267 | } |
1268 | else |
1269 | fatal("panic: unknown argument type %d, arg %d, line %d\n", |
39c3038c |
1270 | type,prevargs+1,line); |
a687059c |
1271 | return numargs; |
1272 | } |
1273 | |
748a9306 |
1274 | int |
a687059c |
1275 | fixrargs(name,arg,prevargs) |
1276 | char *name; |
1277 | int arg; |
1278 | int prevargs; |
1279 | { |
1280 | int type; |
1281 | STR *str; |
1282 | int numargs; |
1283 | |
1284 | if (!arg) |
1285 | return prevargs; |
1286 | type = ops[arg].ival & 255; |
1287 | if (type == OCOMMA) { |
1288 | numargs = fixrargs(name,ops[arg+1].ival,prevargs); |
1289 | numargs = fixrargs(name,ops[arg+3].ival,numargs); |
1290 | } |
1291 | else { |
1292 | char tmpbuf[128]; |
1293 | |
1294 | sprintf(tmpbuf,"%s:%d",name,prevargs); |
1295 | str = hfetch(curarghash,tmpbuf); |
a687059c |
1296 | if (str && strEQ(str->str_ptr,"*")) { |
1297 | if (type == OVAR || type == OSTAR) { |
1298 | ops[arg].ival &= ~255; |
1299 | ops[arg].ival |= OSTAR; |
1300 | } |
1301 | else |
1302 | fatal("Can't pass expression by reference as arg %d of %s\n", |
1303 | prevargs+1, name); |
1304 | } |
1305 | numargs = prevargs + 1; |
1306 | } |
1307 | return numargs; |
1308 | } |