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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); |
5f05dabc |
157 | str_cat(str, "\neval 'exec "); |
158 | str_cat(str, BIN); |
159 | str_cat(str, "/perl -S $0 ${1+\"$@\"}'\n\ |
378cc40b |
160 | if $running_under_some_shell;\n\ |
161 | # this emulates #! processing on NIH machines.\n\ |
162 | # (remove #! line above if indigestible)\n\n"); |
a559c259 |
163 | str_cat(str, |
a0d0e21e |
164 | "eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_0-9]+=)(.*)/ && shift;\n"); |
a559c259 |
165 | str_cat(str, |
166 | " # process any FOO=bar switches\n\n"); |
8d063cd8 |
167 | if (do_opens && opens) { |
168 | str_scat(str,opens); |
169 | str_free(opens); |
170 | str_cat(str,"\n"); |
171 | } |
172 | str_scat(str,tmpstr); |
173 | str_free(tmpstr); |
174 | #ifdef DEBUGGING |
175 | if (!(debug & 16)) |
176 | #endif |
177 | fixup(str); |
178 | putlines(str); |
378cc40b |
179 | if (checkers) { |
180 | fprintf(stderr, |
181 | "Please check my work on the %d line%s I've marked with \"#???\".\n", |
182 | checkers, checkers == 1 ? "" : "s" ); |
183 | fprintf(stderr, |
184 | "The operation I've selected may be wrong for the operand types.\n"); |
185 | } |
8d063cd8 |
186 | exit(0); |
187 | } |
188 | |
189 | #define RETURN(retval) return (bufptr = s,retval) |
190 | #define XTERM(retval) return (expectterm = TRUE,bufptr = s,retval) |
191 | #define XOP(retval) return (expectterm = FALSE,bufptr = s,retval) |
a687059c |
192 | #define ID(x) return (yylval=string(x,0),expectterm = FALSE,bufptr = s,idtype) |
193 | |
194 | int idtype; |
8d063cd8 |
195 | |
748a9306 |
196 | int |
8d063cd8 |
197 | yylex() |
198 | { |
199 | register char *s = bufptr; |
200 | register char *d; |
201 | register int tmp; |
202 | |
203 | retry: |
204 | #ifdef YYDEBUG |
205 | if (yydebug) |
a0d0e21e |
206 | if (strchr(s,'\n')) |
8d063cd8 |
207 | fprintf(stderr,"Tokener at %s",s); |
208 | else |
209 | fprintf(stderr,"Tokener at %s\n",s); |
210 | #endif |
211 | switch (*s) { |
212 | default: |
213 | fprintf(stderr, |
214 | "Unrecognized character %c in file %s line %d--ignoring.\n", |
215 | *s++,filename,line); |
216 | goto retry; |
217 | case '\\': |
bf10efe7 |
218 | s++; |
219 | if (*s && *s != '\n') { |
220 | yyerror("Ignoring spurious backslash"); |
221 | goto retry; |
222 | } |
223 | /*FALLSTHROUGH*/ |
8d063cd8 |
224 | case 0: |
225 | s = str_get(linestr); |
226 | *s = '\0'; |
227 | if (!rsfp) |
228 | RETURN(0); |
229 | line++; |
230 | if ((s = str_gets(linestr, rsfp)) == Nullch) { |
231 | if (rsfp != stdin) |
232 | fclose(rsfp); |
233 | rsfp = Nullfp; |
234 | s = str_get(linestr); |
235 | RETURN(0); |
236 | } |
237 | goto retry; |
238 | case ' ': case '\t': |
239 | s++; |
240 | goto retry; |
241 | case '\n': |
242 | *s = '\0'; |
243 | XTERM(NEWLINE); |
244 | case '#': |
245 | yylval = string(s,0); |
246 | *s = '\0'; |
247 | XTERM(COMMENT); |
248 | case ';': |
249 | tmp = *s++; |
250 | if (*s == '\n') { |
251 | s++; |
252 | XTERM(SEMINEW); |
253 | } |
254 | XTERM(tmp); |
255 | case '(': |
a687059c |
256 | tmp = *s++; |
257 | XTERM(tmp); |
8d063cd8 |
258 | case '{': |
259 | case '[': |
260 | case ')': |
261 | case ']': |
a687059c |
262 | case '?': |
263 | case ':': |
8d063cd8 |
264 | tmp = *s++; |
265 | XOP(tmp); |
266 | case 127: |
267 | s++; |
268 | XTERM('}'); |
269 | case '}': |
270 | for (d = s + 1; isspace(*d); d++) ; |
271 | if (!*d) |
272 | s = d - 1; |
273 | *s = 127; |
274 | XTERM(';'); |
275 | case ',': |
276 | tmp = *s++; |
277 | XTERM(tmp); |
278 | case '~': |
279 | s++; |
378cc40b |
280 | yylval = string("~",1); |
8d063cd8 |
281 | XTERM(MATCHOP); |
282 | case '+': |
283 | case '-': |
284 | if (s[1] == *s) { |
285 | s++; |
286 | if (*s++ == '+') |
287 | XTERM(INCR); |
288 | else |
289 | XTERM(DECR); |
290 | } |
291 | /* FALL THROUGH */ |
292 | case '*': |
293 | case '%': |
a687059c |
294 | case '^': |
8d063cd8 |
295 | tmp = *s++; |
296 | if (*s == '=') { |
a687059c |
297 | if (tmp == '^') |
298 | yylval = string("**=",3); |
299 | else |
300 | yylval = string(s-1,2); |
8d063cd8 |
301 | s++; |
302 | XTERM(ASGNOP); |
303 | } |
304 | XTERM(tmp); |
305 | case '&': |
306 | s++; |
307 | tmp = *s++; |
308 | if (tmp == '&') |
309 | XTERM(ANDAND); |
310 | s--; |
311 | XTERM('&'); |
312 | case '|': |
313 | s++; |
314 | tmp = *s++; |
315 | if (tmp == '|') |
316 | XTERM(OROR); |
317 | s--; |
a687059c |
318 | while (*s == ' ' || *s == '\t') |
319 | s++; |
320 | if (strnEQ(s,"getline",7)) |
321 | XTERM('p'); |
322 | else |
323 | XTERM('|'); |
8d063cd8 |
324 | case '=': |
325 | s++; |
326 | tmp = *s++; |
327 | if (tmp == '=') { |
328 | yylval = string("==",2); |
329 | XTERM(RELOP); |
330 | } |
331 | s--; |
332 | yylval = string("=",1); |
333 | XTERM(ASGNOP); |
334 | case '!': |
335 | s++; |
336 | tmp = *s++; |
337 | if (tmp == '=') { |
338 | yylval = string("!=",2); |
339 | XTERM(RELOP); |
340 | } |
341 | if (tmp == '~') { |
342 | yylval = string("!~",2); |
343 | XTERM(MATCHOP); |
344 | } |
345 | s--; |
346 | XTERM(NOT); |
347 | case '<': |
348 | s++; |
349 | tmp = *s++; |
350 | if (tmp == '=') { |
351 | yylval = string("<=",2); |
352 | XTERM(RELOP); |
353 | } |
354 | s--; |
a687059c |
355 | XTERM('<'); |
8d063cd8 |
356 | case '>': |
357 | s++; |
358 | tmp = *s++; |
378cc40b |
359 | if (tmp == '>') { |
360 | yylval = string(">>",2); |
361 | XTERM(GRGR); |
362 | } |
8d063cd8 |
363 | if (tmp == '=') { |
364 | yylval = string(">=",2); |
365 | XTERM(RELOP); |
366 | } |
367 | s--; |
a687059c |
368 | XTERM('>'); |
8d063cd8 |
369 | |
370 | #define SNARFWORD \ |
371 | d = tokenbuf; \ |
372 | while (isalpha(*s) || isdigit(*s) || *s == '_') \ |
373 | *d++ = *s++; \ |
374 | *d = '\0'; \ |
a687059c |
375 | d = tokenbuf; \ |
376 | if (*s == '(') \ |
377 | idtype = USERFUN; \ |
378 | else \ |
379 | idtype = VAR; |
8d063cd8 |
380 | |
381 | case '$': |
382 | s++; |
383 | if (*s == '0') { |
384 | s++; |
385 | do_chop = TRUE; |
386 | need_entire = TRUE; |
a687059c |
387 | idtype = VAR; |
8d063cd8 |
388 | ID("0"); |
389 | } |
390 | do_split = TRUE; |
391 | if (isdigit(*s)) { |
392 | for (d = s; isdigit(*s); s++) ; |
393 | yylval = string(d,s-d); |
394 | tmp = atoi(d); |
395 | if (tmp > maxfld) |
396 | maxfld = tmp; |
397 | XOP(FIELD); |
398 | } |
399 | split_to_array = set_array_base = TRUE; |
400 | XOP(VFIELD); |
401 | |
402 | case '/': /* may either be division or pattern */ |
403 | if (expectterm) { |
404 | s = scanpat(s); |
405 | XTERM(REGEX); |
406 | } |
407 | tmp = *s++; |
408 | if (*s == '=') { |
409 | yylval = string("/=",2); |
410 | s++; |
411 | XTERM(ASGNOP); |
412 | } |
413 | XTERM(tmp); |
414 | |
415 | case '0': case '1': case '2': case '3': case '4': |
a687059c |
416 | case '5': case '6': case '7': case '8': case '9': case '.': |
8d063cd8 |
417 | s = scannum(s); |
418 | XOP(NUMBER); |
419 | case '"': |
420 | s++; |
421 | s = cpy2(tokenbuf,s,s[-1]); |
422 | if (!*s) |
423 | fatal("String not terminated:\n%s",str_get(linestr)); |
424 | s++; |
425 | yylval = string(tokenbuf,0); |
426 | XOP(STRING); |
427 | |
428 | case 'a': case 'A': |
429 | SNARFWORD; |
a687059c |
430 | if (strEQ(d,"ARGC")) |
431 | set_array_base = TRUE; |
432 | if (strEQ(d,"ARGV")) { |
433 | yylval=numary(string("ARGV",0)); |
434 | XOP(VAR); |
435 | } |
436 | if (strEQ(d,"atan2")) { |
437 | yylval = OATAN2; |
438 | XTERM(FUNN); |
439 | } |
8d063cd8 |
440 | ID(d); |
441 | case 'b': case 'B': |
442 | SNARFWORD; |
443 | if (strEQ(d,"break")) |
444 | XTERM(BREAK); |
445 | if (strEQ(d,"BEGIN")) |
446 | XTERM(BEGIN); |
447 | ID(d); |
448 | case 'c': case 'C': |
449 | SNARFWORD; |
450 | if (strEQ(d,"continue")) |
451 | XTERM(CONTINUE); |
a687059c |
452 | if (strEQ(d,"cos")) { |
453 | yylval = OCOS; |
454 | XTERM(FUN1); |
455 | } |
456 | if (strEQ(d,"close")) { |
457 | do_fancy_opens = 1; |
458 | yylval = OCLOSE; |
459 | XTERM(FUN1); |
460 | } |
461 | if (strEQ(d,"chdir")) |
462 | *d = toupper(*d); |
463 | else if (strEQ(d,"crypt")) |
464 | *d = toupper(*d); |
465 | else if (strEQ(d,"chop")) |
466 | *d = toupper(*d); |
467 | else if (strEQ(d,"chmod")) |
468 | *d = toupper(*d); |
469 | else if (strEQ(d,"chown")) |
470 | *d = toupper(*d); |
8d063cd8 |
471 | ID(d); |
472 | case 'd': case 'D': |
473 | SNARFWORD; |
a687059c |
474 | if (strEQ(d,"do")) |
475 | XTERM(DO); |
476 | if (strEQ(d,"delete")) |
477 | XTERM(DELETE); |
478 | if (strEQ(d,"die")) |
479 | *d = toupper(*d); |
8d063cd8 |
480 | ID(d); |
481 | case 'e': case 'E': |
482 | SNARFWORD; |
483 | if (strEQ(d,"END")) |
484 | XTERM(END); |
485 | if (strEQ(d,"else")) |
486 | XTERM(ELSE); |
487 | if (strEQ(d,"exit")) { |
488 | saw_line_op = TRUE; |
489 | XTERM(EXIT); |
490 | } |
491 | if (strEQ(d,"exp")) { |
492 | yylval = OEXP; |
493 | XTERM(FUN1); |
494 | } |
a687059c |
495 | if (strEQ(d,"elsif")) |
496 | *d = toupper(*d); |
497 | else if (strEQ(d,"eq")) |
498 | *d = toupper(*d); |
499 | else if (strEQ(d,"eval")) |
500 | *d = toupper(*d); |
501 | else if (strEQ(d,"eof")) |
502 | *d = toupper(*d); |
503 | else if (strEQ(d,"each")) |
504 | *d = toupper(*d); |
505 | else if (strEQ(d,"exec")) |
506 | *d = toupper(*d); |
8d063cd8 |
507 | ID(d); |
508 | case 'f': case 'F': |
509 | SNARFWORD; |
510 | if (strEQ(d,"FS")) { |
511 | saw_FS++; |
512 | if (saw_FS == 1 && in_begin) { |
513 | for (d = s; *d && isspace(*d); d++) ; |
514 | if (*d == '=') { |
515 | for (d++; *d && isspace(*d); d++) ; |
516 | if (*d == '"' && d[2] == '"') |
517 | const_FS = d[1]; |
518 | } |
519 | } |
520 | ID(tokenbuf); |
521 | } |
8d063cd8 |
522 | if (strEQ(d,"for")) |
523 | XTERM(FOR); |
a687059c |
524 | else if (strEQ(d,"function")) |
525 | XTERM(FUNCTION); |
526 | if (strEQ(d,"FILENAME")) |
527 | d = "ARGV"; |
528 | if (strEQ(d,"foreach")) |
529 | *d = toupper(*d); |
530 | else if (strEQ(d,"format")) |
531 | *d = toupper(*d); |
532 | else if (strEQ(d,"fork")) |
533 | *d = toupper(*d); |
534 | else if (strEQ(d,"fh")) |
535 | *d = toupper(*d); |
8d063cd8 |
536 | ID(d); |
537 | case 'g': case 'G': |
538 | SNARFWORD; |
539 | if (strEQ(d,"getline")) |
540 | XTERM(GETLINE); |
a687059c |
541 | if (strEQ(d,"gsub")) |
542 | XTERM(GSUB); |
543 | if (strEQ(d,"ge")) |
544 | *d = toupper(*d); |
545 | else if (strEQ(d,"gt")) |
546 | *d = toupper(*d); |
547 | else if (strEQ(d,"goto")) |
548 | *d = toupper(*d); |
549 | else if (strEQ(d,"gmtime")) |
550 | *d = toupper(*d); |
8d063cd8 |
551 | ID(d); |
552 | case 'h': case 'H': |
553 | SNARFWORD; |
a687059c |
554 | if (strEQ(d,"hex")) |
555 | *d = toupper(*d); |
8d063cd8 |
556 | ID(d); |
557 | case 'i': case 'I': |
558 | SNARFWORD; |
559 | if (strEQ(d,"if")) |
560 | XTERM(IF); |
561 | if (strEQ(d,"in")) |
562 | XTERM(IN); |
563 | if (strEQ(d,"index")) { |
564 | set_array_base = TRUE; |
565 | XTERM(INDEX); |
566 | } |
567 | if (strEQ(d,"int")) { |
568 | yylval = OINT; |
569 | XTERM(FUN1); |
570 | } |
571 | ID(d); |
572 | case 'j': case 'J': |
573 | SNARFWORD; |
a687059c |
574 | if (strEQ(d,"join")) |
575 | *d = toupper(*d); |
8d063cd8 |
576 | ID(d); |
577 | case 'k': case 'K': |
578 | SNARFWORD; |
a687059c |
579 | if (strEQ(d,"keys")) |
580 | *d = toupper(*d); |
581 | else if (strEQ(d,"kill")) |
582 | *d = toupper(*d); |
8d063cd8 |
583 | ID(d); |
584 | case 'l': case 'L': |
585 | SNARFWORD; |
586 | if (strEQ(d,"length")) { |
587 | yylval = OLENGTH; |
588 | XTERM(FUN1); |
589 | } |
590 | if (strEQ(d,"log")) { |
591 | yylval = OLOG; |
592 | XTERM(FUN1); |
593 | } |
a687059c |
594 | if (strEQ(d,"last")) |
595 | *d = toupper(*d); |
596 | else if (strEQ(d,"local")) |
597 | *d = toupper(*d); |
598 | else if (strEQ(d,"lt")) |
599 | *d = toupper(*d); |
600 | else if (strEQ(d,"le")) |
601 | *d = toupper(*d); |
602 | else if (strEQ(d,"locatime")) |
603 | *d = toupper(*d); |
604 | else if (strEQ(d,"link")) |
605 | *d = toupper(*d); |
8d063cd8 |
606 | ID(d); |
607 | case 'm': case 'M': |
608 | SNARFWORD; |
a687059c |
609 | if (strEQ(d,"match")) { |
610 | set_array_base = TRUE; |
611 | XTERM(MATCH); |
612 | } |
613 | if (strEQ(d,"m")) |
614 | *d = toupper(*d); |
8d063cd8 |
615 | ID(d); |
616 | case 'n': case 'N': |
617 | SNARFWORD; |
618 | if (strEQ(d,"NF")) |
87250799 |
619 | do_chop = do_split = split_to_array = set_array_base = TRUE; |
8d063cd8 |
620 | if (strEQ(d,"next")) { |
621 | saw_line_op = TRUE; |
622 | XTERM(NEXT); |
623 | } |
a687059c |
624 | if (strEQ(d,"ne")) |
625 | *d = toupper(*d); |
8d063cd8 |
626 | ID(d); |
627 | case 'o': case 'O': |
628 | SNARFWORD; |
629 | if (strEQ(d,"ORS")) { |
630 | saw_ORS = TRUE; |
a687059c |
631 | d = "\\"; |
8d063cd8 |
632 | } |
633 | if (strEQ(d,"OFS")) { |
634 | saw_OFS = TRUE; |
a687059c |
635 | d = ","; |
8d063cd8 |
636 | } |
637 | if (strEQ(d,"OFMT")) { |
a687059c |
638 | d = "#"; |
8d063cd8 |
639 | } |
a687059c |
640 | if (strEQ(d,"open")) |
641 | *d = toupper(*d); |
642 | else if (strEQ(d,"ord")) |
643 | *d = toupper(*d); |
644 | else if (strEQ(d,"oct")) |
645 | *d = toupper(*d); |
8d063cd8 |
646 | ID(d); |
647 | case 'p': case 'P': |
648 | SNARFWORD; |
649 | if (strEQ(d,"print")) { |
650 | XTERM(PRINT); |
651 | } |
652 | if (strEQ(d,"printf")) { |
653 | XTERM(PRINTF); |
654 | } |
a687059c |
655 | if (strEQ(d,"push")) |
656 | *d = toupper(*d); |
657 | else if (strEQ(d,"pop")) |
658 | *d = toupper(*d); |
8d063cd8 |
659 | ID(d); |
660 | case 'q': case 'Q': |
661 | SNARFWORD; |
662 | ID(d); |
663 | case 'r': case 'R': |
664 | SNARFWORD; |
665 | if (strEQ(d,"RS")) { |
a687059c |
666 | d = "/"; |
8d063cd8 |
667 | saw_RS = TRUE; |
668 | } |
a687059c |
669 | if (strEQ(d,"rand")) { |
670 | yylval = ORAND; |
671 | XTERM(FUN1); |
672 | } |
673 | if (strEQ(d,"return")) |
674 | XTERM(RET); |
675 | if (strEQ(d,"reset")) |
676 | *d = toupper(*d); |
677 | else if (strEQ(d,"redo")) |
678 | *d = toupper(*d); |
679 | else if (strEQ(d,"rename")) |
680 | *d = toupper(*d); |
8d063cd8 |
681 | ID(d); |
682 | case 's': case 'S': |
683 | SNARFWORD; |
684 | if (strEQ(d,"split")) { |
685 | set_array_base = TRUE; |
686 | XOP(SPLIT); |
687 | } |
688 | if (strEQ(d,"substr")) { |
689 | set_array_base = TRUE; |
690 | XTERM(SUBSTR); |
691 | } |
a687059c |
692 | if (strEQ(d,"sub")) |
693 | XTERM(SUB); |
8d063cd8 |
694 | if (strEQ(d,"sprintf")) |
695 | XTERM(SPRINTF); |
696 | if (strEQ(d,"sqrt")) { |
697 | yylval = OSQRT; |
698 | XTERM(FUN1); |
699 | } |
a687059c |
700 | if (strEQ(d,"SUBSEP")) { |
701 | d = ";"; |
702 | } |
703 | if (strEQ(d,"sin")) { |
704 | yylval = OSIN; |
705 | XTERM(FUN1); |
706 | } |
707 | if (strEQ(d,"srand")) { |
708 | yylval = OSRAND; |
709 | XTERM(FUN1); |
710 | } |
711 | if (strEQ(d,"system")) { |
712 | yylval = OSYSTEM; |
713 | XTERM(FUN1); |
714 | } |
715 | if (strEQ(d,"s")) |
716 | *d = toupper(*d); |
717 | else if (strEQ(d,"shift")) |
718 | *d = toupper(*d); |
719 | else if (strEQ(d,"select")) |
720 | *d = toupper(*d); |
721 | else if (strEQ(d,"seek")) |
722 | *d = toupper(*d); |
723 | else if (strEQ(d,"stat")) |
724 | *d = toupper(*d); |
725 | else if (strEQ(d,"study")) |
726 | *d = toupper(*d); |
727 | else if (strEQ(d,"sleep")) |
728 | *d = toupper(*d); |
729 | else if (strEQ(d,"symlink")) |
730 | *d = toupper(*d); |
731 | else if (strEQ(d,"sort")) |
732 | *d = toupper(*d); |
8d063cd8 |
733 | ID(d); |
734 | case 't': case 'T': |
735 | SNARFWORD; |
a687059c |
736 | if (strEQ(d,"tr")) |
737 | *d = toupper(*d); |
738 | else if (strEQ(d,"tell")) |
739 | *d = toupper(*d); |
740 | else if (strEQ(d,"time")) |
741 | *d = toupper(*d); |
742 | else if (strEQ(d,"times")) |
743 | *d = toupper(*d); |
8d063cd8 |
744 | ID(d); |
745 | case 'u': case 'U': |
746 | SNARFWORD; |
a687059c |
747 | if (strEQ(d,"until")) |
748 | *d = toupper(*d); |
749 | else if (strEQ(d,"unless")) |
750 | *d = toupper(*d); |
751 | else if (strEQ(d,"umask")) |
752 | *d = toupper(*d); |
753 | else if (strEQ(d,"unshift")) |
754 | *d = toupper(*d); |
755 | else if (strEQ(d,"unlink")) |
756 | *d = toupper(*d); |
757 | else if (strEQ(d,"utime")) |
758 | *d = toupper(*d); |
8d063cd8 |
759 | ID(d); |
760 | case 'v': case 'V': |
761 | SNARFWORD; |
a687059c |
762 | if (strEQ(d,"values")) |
763 | *d = toupper(*d); |
8d063cd8 |
764 | ID(d); |
765 | case 'w': case 'W': |
766 | SNARFWORD; |
767 | if (strEQ(d,"while")) |
768 | XTERM(WHILE); |
a687059c |
769 | if (strEQ(d,"write")) |
770 | *d = toupper(*d); |
771 | else if (strEQ(d,"wait")) |
772 | *d = toupper(*d); |
8d063cd8 |
773 | ID(d); |
774 | case 'x': case 'X': |
775 | SNARFWORD; |
a687059c |
776 | if (strEQ(d,"x")) |
777 | *d = toupper(*d); |
8d063cd8 |
778 | ID(d); |
779 | case 'y': case 'Y': |
780 | SNARFWORD; |
a687059c |
781 | if (strEQ(d,"y")) |
782 | *d = toupper(*d); |
8d063cd8 |
783 | ID(d); |
784 | case 'z': case 'Z': |
785 | SNARFWORD; |
786 | ID(d); |
787 | } |
788 | } |
789 | |
790 | char * |
791 | scanpat(s) |
792 | register char *s; |
793 | { |
794 | register char *d; |
795 | |
796 | switch (*s++) { |
797 | case '/': |
798 | break; |
799 | default: |
800 | fatal("Search pattern not found:\n%s",str_get(linestr)); |
801 | } |
378cc40b |
802 | |
803 | d = tokenbuf; |
804 | for (; *s; s++,d++) { |
805 | if (*s == '\\') { |
806 | if (s[1] == '/') |
807 | *d++ = *s++; |
808 | else if (s[1] == '\\') |
809 | *d++ = *s++; |
bf10efe7 |
810 | else if (s[1] == '[') |
811 | *d++ = *s++; |
378cc40b |
812 | } |
813 | else if (*s == '[') { |
814 | *d++ = *s++; |
815 | do { |
816 | if (*s == '\\' && s[1]) |
817 | *d++ = *s++; |
818 | if (*s == '/' || (*s == '-' && s[1] == ']')) |
819 | *d++ = '\\'; |
820 | *d++ = *s++; |
821 | } while (*s && *s != ']'); |
822 | } |
823 | else if (*s == '/') |
824 | break; |
825 | *d = *s; |
826 | } |
827 | *d = '\0'; |
828 | |
8d063cd8 |
829 | if (!*s) |
830 | fatal("Search pattern not terminated:\n%s",str_get(linestr)); |
831 | s++; |
832 | yylval = string(tokenbuf,0); |
833 | return s; |
834 | } |
835 | |
75f92628 |
836 | void |
8d063cd8 |
837 | yyerror(s) |
838 | char *s; |
839 | { |
840 | fprintf(stderr,"%s in file %s at line %d\n", |
841 | s,filename,line); |
842 | } |
843 | |
844 | char * |
845 | scannum(s) |
846 | register char *s; |
847 | { |
848 | register char *d; |
849 | |
850 | switch (*s) { |
851 | case '1': case '2': case '3': case '4': case '5': |
852 | case '6': case '7': case '8': case '9': case '0' : case '.': |
853 | d = tokenbuf; |
378cc40b |
854 | while (isdigit(*s)) { |
8d063cd8 |
855 | *d++ = *s++; |
378cc40b |
856 | } |
bf10efe7 |
857 | if (*s == '.') { |
858 | if (isdigit(s[1])) { |
378cc40b |
859 | *d++ = *s++; |
bf10efe7 |
860 | while (isdigit(*s)) { |
861 | *d++ = *s++; |
862 | } |
378cc40b |
863 | } |
bf10efe7 |
864 | else |
865 | s++; |
378cc40b |
866 | } |
a0d0e21e |
867 | if (strchr("eE",*s) && strchr("+-0123456789",s[1])) { |
8d063cd8 |
868 | *d++ = *s++; |
378cc40b |
869 | if (*s == '+' || *s == '-') |
870 | *d++ = *s++; |
871 | while (isdigit(*s)) |
872 | *d++ = *s++; |
873 | } |
8d063cd8 |
874 | *d = '\0'; |
875 | yylval = string(tokenbuf,0); |
876 | break; |
877 | } |
878 | return s; |
879 | } |
880 | |
748a9306 |
881 | int |
8d063cd8 |
882 | string(ptr,len) |
883 | char *ptr; |
748a9306 |
884 | int len; |
8d063cd8 |
885 | { |
886 | int retval = mop; |
887 | |
888 | ops[mop++].ival = OSTRING + (1<<8); |
889 | if (!len) |
890 | len = strlen(ptr); |
891 | ops[mop].cval = safemalloc(len+1); |
892 | strncpy(ops[mop].cval,ptr,len); |
893 | ops[mop++].cval[len] = '\0'; |
a687059c |
894 | if (mop >= OPSMAX) |
895 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
896 | return retval; |
897 | } |
898 | |
748a9306 |
899 | int |
8d063cd8 |
900 | oper0(type) |
901 | int type; |
902 | { |
903 | int retval = mop; |
904 | |
905 | if (type > 255) |
906 | fatal("type > 255 (%d)\n",type); |
907 | ops[mop++].ival = type; |
a687059c |
908 | if (mop >= OPSMAX) |
909 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
910 | return retval; |
911 | } |
912 | |
748a9306 |
913 | int |
8d063cd8 |
914 | oper1(type,arg1) |
915 | int type; |
916 | int arg1; |
917 | { |
918 | int retval = mop; |
919 | |
920 | if (type > 255) |
921 | fatal("type > 255 (%d)\n",type); |
922 | ops[mop++].ival = type + (1<<8); |
923 | ops[mop++].ival = arg1; |
a687059c |
924 | if (mop >= OPSMAX) |
925 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
926 | return retval; |
927 | } |
928 | |
748a9306 |
929 | int |
8d063cd8 |
930 | oper2(type,arg1,arg2) |
931 | int type; |
932 | int arg1; |
933 | int arg2; |
934 | { |
935 | int retval = mop; |
936 | |
937 | if (type > 255) |
938 | fatal("type > 255 (%d)\n",type); |
939 | ops[mop++].ival = type + (2<<8); |
940 | ops[mop++].ival = arg1; |
941 | ops[mop++].ival = arg2; |
a687059c |
942 | if (mop >= OPSMAX) |
943 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
944 | return retval; |
945 | } |
946 | |
748a9306 |
947 | int |
8d063cd8 |
948 | oper3(type,arg1,arg2,arg3) |
949 | int type; |
950 | int arg1; |
951 | int arg2; |
952 | int arg3; |
953 | { |
954 | int retval = mop; |
955 | |
956 | if (type > 255) |
957 | fatal("type > 255 (%d)\n",type); |
958 | ops[mop++].ival = type + (3<<8); |
959 | ops[mop++].ival = arg1; |
960 | ops[mop++].ival = arg2; |
961 | ops[mop++].ival = arg3; |
a687059c |
962 | if (mop >= OPSMAX) |
963 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
964 | return retval; |
965 | } |
966 | |
748a9306 |
967 | int |
8d063cd8 |
968 | oper4(type,arg1,arg2,arg3,arg4) |
969 | int type; |
970 | int arg1; |
971 | int arg2; |
972 | int arg3; |
973 | int arg4; |
974 | { |
975 | int retval = mop; |
976 | |
977 | if (type > 255) |
978 | fatal("type > 255 (%d)\n",type); |
979 | ops[mop++].ival = type + (4<<8); |
980 | ops[mop++].ival = arg1; |
981 | ops[mop++].ival = arg2; |
982 | ops[mop++].ival = arg3; |
983 | ops[mop++].ival = arg4; |
a687059c |
984 | if (mop >= OPSMAX) |
985 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
986 | return retval; |
987 | } |
988 | |
748a9306 |
989 | int |
8d063cd8 |
990 | oper5(type,arg1,arg2,arg3,arg4,arg5) |
991 | int type; |
992 | int arg1; |
993 | int arg2; |
994 | int arg3; |
995 | int arg4; |
996 | int arg5; |
997 | { |
998 | int retval = mop; |
999 | |
1000 | if (type > 255) |
1001 | fatal("type > 255 (%d)\n",type); |
1002 | ops[mop++].ival = type + (5<<8); |
1003 | ops[mop++].ival = arg1; |
1004 | ops[mop++].ival = arg2; |
1005 | ops[mop++].ival = arg3; |
1006 | ops[mop++].ival = arg4; |
1007 | ops[mop++].ival = arg5; |
a687059c |
1008 | if (mop >= OPSMAX) |
1009 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
1010 | return retval; |
1011 | } |
1012 | |
1013 | int depth = 0; |
1014 | |
75f92628 |
1015 | void |
8d063cd8 |
1016 | dump(branch) |
1017 | int branch; |
1018 | { |
1019 | register int type; |
1020 | register int len; |
1021 | register int i; |
1022 | |
1023 | type = ops[branch].ival; |
1024 | len = type >> 8; |
1025 | type &= 255; |
1026 | for (i=depth; i; i--) |
1027 | printf(" "); |
1028 | if (type == OSTRING) { |
1029 | printf("%-5d\"%s\"\n",branch,ops[branch+1].cval); |
1030 | } |
1031 | else { |
1032 | printf("(%-5d%s %d\n",branch,opname[type],len); |
1033 | depth++; |
1034 | for (i=1; i<=len; i++) |
1035 | dump(ops[branch+i].ival); |
1036 | depth--; |
1037 | for (i=depth; i; i--) |
1038 | printf(" "); |
1039 | printf(")\n"); |
1040 | } |
1041 | } |
1042 | |
748a9306 |
1043 | int |
8d063cd8 |
1044 | bl(arg,maybe) |
1045 | int arg; |
1046 | int maybe; |
1047 | { |
1048 | if (!arg) |
1049 | return 0; |
1050 | else if ((ops[arg].ival & 255) != OBLOCK) |
1051 | return oper2(OBLOCK,arg,maybe); |
378cc40b |
1052 | else if ((ops[arg].ival >> 8) < 2) |
8d063cd8 |
1053 | return oper2(OBLOCK,ops[arg+1].ival,maybe); |
1054 | else |
1055 | return arg; |
1056 | } |
1057 | |
75f92628 |
1058 | void |
8d063cd8 |
1059 | fixup(str) |
1060 | STR *str; |
1061 | { |
1062 | register char *s; |
1063 | register char *t; |
1064 | |
1065 | for (s = str->str_ptr; *s; s++) { |
1066 | if (*s == ';' && s[1] == ' ' && s[2] == '\n') { |
1067 | strcpy(s+1,s+2); |
1068 | s++; |
1069 | } |
1070 | else if (*s == '\n') { |
1071 | for (t = s+1; isspace(*t & 127); t++) ; |
1072 | t--; |
1073 | while (isspace(*t & 127) && *t != '\n') t--; |
1074 | if (*t == '\n' && t-s > 1) { |
1075 | if (s[-1] == '{') |
1076 | s--; |
1077 | strcpy(s+1,t); |
1078 | } |
1079 | s++; |
1080 | } |
1081 | } |
1082 | } |
1083 | |
75f92628 |
1084 | void |
8d063cd8 |
1085 | putlines(str) |
1086 | STR *str; |
1087 | { |
1088 | register char *d, *s, *t, *e; |
1089 | register int pos, newpos; |
1090 | |
1091 | d = tokenbuf; |
1092 | pos = 0; |
1093 | for (s = str->str_ptr; *s; s++) { |
1094 | *d++ = *s; |
1095 | pos++; |
1096 | if (*s == '\n') { |
1097 | *d = '\0'; |
1098 | d = tokenbuf; |
1099 | pos = 0; |
1100 | putone(); |
1101 | } |
1102 | else if (*s == '\t') |
1103 | pos += 7; |
1104 | if (pos > 78) { /* split a long line? */ |
1105 | *d-- = '\0'; |
1106 | newpos = 0; |
1107 | for (t = tokenbuf; isspace(*t & 127); t++) { |
1108 | if (*t == '\t') |
1109 | newpos += 8; |
1110 | else |
1111 | newpos += 1; |
1112 | } |
1113 | e = d; |
1114 | while (d > tokenbuf && (*d != ' ' || d[-1] != ';')) |
1115 | d--; |
1116 | if (d < t+10) { |
1117 | d = e; |
1118 | while (d > tokenbuf && |
1119 | (*d != ' ' || d[-1] != '|' || d[-2] != '|') ) |
1120 | d--; |
1121 | } |
1122 | if (d < t+10) { |
1123 | d = e; |
1124 | while (d > tokenbuf && |
1125 | (*d != ' ' || d[-1] != '&' || d[-2] != '&') ) |
1126 | d--; |
1127 | } |
1128 | if (d < t+10) { |
1129 | d = e; |
1130 | while (d > tokenbuf && (*d != ' ' || d[-1] != ',')) |
1131 | d--; |
1132 | } |
1133 | if (d < t+10) { |
1134 | d = e; |
1135 | while (d > tokenbuf && *d != ' ') |
1136 | d--; |
1137 | } |
1138 | if (d > t+3) { |
fe14fcc3 |
1139 | char save[2048]; |
1140 | strcpy(save, d); |
1141 | *d = '\n'; |
1142 | d[1] = '\0'; |
8d063cd8 |
1143 | putone(); |
1144 | putchar('\n'); |
1145 | if (d[-1] != ';' && !(newpos % 4)) { |
1146 | *t++ = ' '; |
1147 | *t++ = ' '; |
1148 | newpos += 2; |
1149 | } |
fe14fcc3 |
1150 | strcpy(t,save+1); |
8d063cd8 |
1151 | newpos += strlen(t); |
1152 | d = t + strlen(t); |
1153 | pos = newpos; |
1154 | } |
1155 | else |
1156 | d = e + 1; |
1157 | } |
1158 | } |
1159 | } |
1160 | |
75f92628 |
1161 | void |
8d063cd8 |
1162 | putone() |
1163 | { |
1164 | register char *t; |
1165 | |
1166 | for (t = tokenbuf; *t; t++) { |
1167 | *t &= 127; |
1168 | if (*t == 127) { |
1169 | *t = ' '; |
1170 | strcpy(t+strlen(t)-1, "\t#???\n"); |
378cc40b |
1171 | checkers++; |
8d063cd8 |
1172 | } |
1173 | } |
1174 | t = tokenbuf; |
1175 | if (*t == '#') { |
1176 | if (strnEQ(t,"#!/bin/awk",10) || strnEQ(t,"#! /bin/awk",11)) |
1177 | return; |
378cc40b |
1178 | if (strnEQ(t,"#!/usr/bin/awk",14) || strnEQ(t,"#! /usr/bin/awk",15)) |
1179 | return; |
8d063cd8 |
1180 | } |
1181 | fputs(tokenbuf,stdout); |
1182 | } |
1183 | |
748a9306 |
1184 | int |
8d063cd8 |
1185 | numary(arg) |
1186 | int arg; |
1187 | { |
1188 | STR *key; |
1189 | int dummy; |
1190 | |
a687059c |
1191 | key = walk(0,0,arg,&dummy,P_MIN); |
8d063cd8 |
1192 | str_cat(key,"[]"); |
1193 | hstore(symtab,key->str_ptr,str_make("1")); |
1194 | str_free(key); |
1195 | set_array_base = TRUE; |
1196 | return arg; |
1197 | } |
a687059c |
1198 | |
748a9306 |
1199 | int |
a687059c |
1200 | rememberargs(arg) |
1201 | int arg; |
1202 | { |
1203 | int type; |
1204 | STR *str; |
1205 | |
1206 | if (!arg) |
1207 | return arg; |
1208 | type = ops[arg].ival & 255; |
1209 | if (type == OCOMMA) { |
1210 | rememberargs(ops[arg+1].ival); |
1211 | rememberargs(ops[arg+3].ival); |
1212 | } |
1213 | else if (type == OVAR) { |
1214 | str = str_new(0); |
1215 | hstore(curarghash,ops[ops[arg+1].ival+1].cval,str); |
1216 | } |
1217 | else |
1218 | fatal("panic: unknown argument type %d, line %d\n",type,line); |
1219 | return arg; |
1220 | } |
1221 | |
748a9306 |
1222 | int |
a687059c |
1223 | aryrefarg(arg) |
1224 | int arg; |
1225 | { |
1226 | int type = ops[arg].ival & 255; |
1227 | STR *str; |
1228 | |
1229 | if (type != OSTRING) |
1230 | fatal("panic: aryrefarg %d, line %d\n",type,line); |
1231 | str = hfetch(curarghash,ops[arg+1].cval); |
1232 | if (str) |
1233 | str_set(str,"*"); |
1234 | return arg; |
1235 | } |
1236 | |
748a9306 |
1237 | int |
a687059c |
1238 | fixfargs(name,arg,prevargs) |
1239 | int name; |
1240 | int arg; |
1241 | int prevargs; |
1242 | { |
1243 | int type; |
1244 | STR *str; |
1245 | int numargs; |
1246 | |
1247 | if (!arg) |
1248 | return prevargs; |
1249 | type = ops[arg].ival & 255; |
1250 | if (type == OCOMMA) { |
1251 | numargs = fixfargs(name,ops[arg+1].ival,prevargs); |
1252 | numargs = fixfargs(name,ops[arg+3].ival,numargs); |
1253 | } |
1254 | else if (type == OVAR) { |
1255 | str = hfetch(curarghash,ops[ops[arg+1].ival+1].cval); |
1256 | if (strEQ(str_get(str),"*")) { |
1257 | char tmpbuf[128]; |
1258 | |
1259 | str_set(str,""); /* in case another routine has this */ |
1260 | ops[arg].ival &= ~255; |
1261 | ops[arg].ival |= OSTAR; |
1262 | sprintf(tmpbuf,"%s:%d",ops[name+1].cval,prevargs); |
1263 | fprintf(stderr,"Adding %s\n",tmpbuf); |
1264 | str = str_new(0); |
1265 | str_set(str,"*"); |
1266 | hstore(curarghash,tmpbuf,str); |
1267 | } |
1268 | numargs = prevargs + 1; |
1269 | } |
1270 | else |
1271 | fatal("panic: unknown argument type %d, arg %d, line %d\n", |
39c3038c |
1272 | type,prevargs+1,line); |
a687059c |
1273 | return numargs; |
1274 | } |
1275 | |
748a9306 |
1276 | int |
a687059c |
1277 | fixrargs(name,arg,prevargs) |
1278 | char *name; |
1279 | int arg; |
1280 | int prevargs; |
1281 | { |
1282 | int type; |
1283 | STR *str; |
1284 | int numargs; |
1285 | |
1286 | if (!arg) |
1287 | return prevargs; |
1288 | type = ops[arg].ival & 255; |
1289 | if (type == OCOMMA) { |
1290 | numargs = fixrargs(name,ops[arg+1].ival,prevargs); |
1291 | numargs = fixrargs(name,ops[arg+3].ival,numargs); |
1292 | } |
1293 | else { |
1294 | char tmpbuf[128]; |
1295 | |
1296 | sprintf(tmpbuf,"%s:%d",name,prevargs); |
1297 | str = hfetch(curarghash,tmpbuf); |
a687059c |
1298 | if (str && strEQ(str->str_ptr,"*")) { |
1299 | if (type == OVAR || type == OSTAR) { |
1300 | ops[arg].ival &= ~255; |
1301 | ops[arg].ival |= OSTAR; |
1302 | } |
1303 | else |
1304 | fatal("Can't pass expression by reference as arg %d of %s\n", |
1305 | prevargs+1, name); |
1306 | } |
1307 | numargs = prevargs + 1; |
1308 | } |
1309 | return numargs; |
1310 | } |