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79072805 |
1 | /* $RCSfile: a2py.c,v $$Revision: 4.1 $$Date: 92/08/07 18:29:14 $ |
a687059c |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, 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 | |
d07c2202 |
11 | #if defined(OS2) || defined(WIN32) |
bf10efe7 |
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 | |
f0f333f4 |
21 | int oper0(int type); |
22 | int oper1(int type, int arg1); |
23 | int oper2(int type, int arg1, int arg2); |
24 | int oper3(int type, int arg1, int arg2, int arg3); |
25 | int oper4(int type, int arg1, int arg2, int arg3, int arg4); |
26 | int oper5(int type, int arg1, int arg2, int arg3, int arg4, int arg5); |
27 | STR *walk(int useval, int level, register int node, int *numericptr, int minprec); |
378cc40b |
28 | |
d07c2202 |
29 | #if defined(OS2) || defined(WIN32) |
30 | static void usage(void); |
31 | |
9607fc9c |
32 | static void |
39c3038c |
33 | usage() |
34 | { |
a0d0e21e |
35 | printf("\nThis is the AWK to PERL translator, version 5.0, patchlevel %d\n", PATCHLEVEL); |
39c3038c |
36 | printf("\nUsage: %s [-D<number>] [-F<char>] [-n<fieldlist>] [-<number>] filename\n", myname); |
37 | printf("\n -D<number> sets debugging flags." |
38 | "\n -F<character> the awk script to translate is always invoked with" |
39 | "\n this -F switch." |
40 | "\n -n<fieldlist> specifies the names of the input fields if input does" |
41 | "\n not have to be split into an array." |
42 | "\n -<number> causes a2p to assume that input will always have that" |
43 | "\n many fields.\n"); |
44 | exit(1); |
45 | } |
46 | #endif |
9607fc9c |
47 | |
48 | int |
f0f333f4 |
49 | main(register int argc, register char **argv, register char **env) |
8d063cd8 |
50 | { |
51 | register STR *str; |
8d063cd8 |
52 | int i; |
8d063cd8 |
53 | STR *tmpstr; |
54 | |
39c3038c |
55 | myname = argv[0]; |
8d063cd8 |
56 | linestr = str_new(80); |
57 | str = str_new(0); /* first used for -I flags */ |
58 | for (argc--,argv++; argc; argc--,argv++) { |
59 | if (argv[0][0] != '-' || !argv[0][1]) |
60 | break; |
61 | reswitch: |
62 | switch (argv[0][1]) { |
63 | #ifdef DEBUGGING |
64 | case 'D': |
65 | debug = atoi(argv[0]+2); |
66 | #ifdef YYDEBUG |
67 | yydebug = (debug & 1); |
68 | #endif |
69 | break; |
70 | #endif |
71 | case '0': case '1': case '2': case '3': case '4': |
72 | case '5': case '6': case '7': case '8': case '9': |
73 | maxfld = atoi(argv[0]+1); |
74 | absmaxfld = TRUE; |
75 | break; |
76 | case 'F': |
77 | fswitch = argv[0][2]; |
78 | break; |
79 | case 'n': |
80 | namelist = savestr(argv[0]+2); |
81 | break; |
a5571d59 |
82 | case 'o': |
83 | old_awk = TRUE; |
84 | break; |
8d063cd8 |
85 | case '-': |
86 | argc--,argv++; |
87 | goto switch_end; |
88 | case 0: |
89 | break; |
90 | default: |
d07c2202 |
91 | #if defined(OS2) || defined(WIN32) |
92 | fprintf(stderr, "Unrecognized switch: %s\n",argv[0]); |
39c3038c |
93 | usage(); |
d07c2202 |
94 | #else |
95 | fatal("Unrecognized switch: %s\n",argv[0]); |
39c3038c |
96 | #endif |
8d063cd8 |
97 | } |
98 | } |
99 | switch_end: |
100 | |
101 | /* open script */ |
102 | |
39c3038c |
103 | if (argv[0] == Nullch) { |
d07c2202 |
104 | #if defined(OS2) || defined(WIN32) |
39c3038c |
105 | if ( isatty(fileno(stdin)) ) |
106 | usage(); |
107 | #endif |
108 | argv[0] = "-"; |
109 | } |
110 | filename = savestr(argv[0]); |
111 | |
8d063cd8 |
112 | filename = savestr(argv[0]); |
113 | if (strEQ(filename,"-")) |
114 | argv[0] = ""; |
115 | if (!*argv[0]) |
116 | rsfp = stdin; |
117 | else |
118 | rsfp = fopen(argv[0],"r"); |
119 | if (rsfp == Nullfp) |
120 | fatal("Awk script \"%s\" doesn't seem to exist.\n",filename); |
121 | |
122 | /* init tokener */ |
123 | |
124 | bufptr = str_get(linestr); |
125 | symtab = hnew(); |
a687059c |
126 | curarghash = hnew(); |
8d063cd8 |
127 | |
128 | /* now parse the report spec */ |
129 | |
130 | if (yyparse()) |
131 | fatal("Translation aborted due to syntax errors.\n"); |
132 | |
133 | #ifdef DEBUGGING |
134 | if (debug & 2) { |
135 | int type, len; |
136 | |
137 | for (i=1; i<mop;) { |
138 | type = ops[i].ival; |
139 | len = type >> 8; |
140 | type &= 255; |
141 | printf("%d\t%d\t%d\t%-10s",i++,type,len,opname[type]); |
142 | if (type == OSTRING) |
143 | printf("\t\"%s\"\n",ops[i].cval),i++; |
144 | else { |
145 | while (len--) { |
146 | printf("\t%d",ops[i].ival),i++; |
147 | } |
148 | putchar('\n'); |
149 | } |
150 | } |
151 | } |
152 | if (debug & 8) |
153 | dump(root); |
154 | #endif |
155 | |
156 | /* first pass to look for numeric variables */ |
157 | |
158 | prewalk(0,0,root,&i); |
159 | |
160 | /* second pass to produce new program */ |
161 | |
a687059c |
162 | tmpstr = walk(0,0,root,&i,P_MIN); |
207d4cd0 |
163 | str = str_make(STARTPERL); |
5f05dabc |
164 | str_cat(str, "\neval 'exec "); |
165 | str_cat(str, BIN); |
166 | str_cat(str, "/perl -S $0 ${1+\"$@\"}'\n\ |
378cc40b |
167 | if $running_under_some_shell;\n\ |
168 | # this emulates #! processing on NIH machines.\n\ |
169 | # (remove #! line above if indigestible)\n\n"); |
a559c259 |
170 | str_cat(str, |
a0d0e21e |
171 | "eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_0-9]+=)(.*)/ && shift;\n"); |
a559c259 |
172 | str_cat(str, |
173 | " # process any FOO=bar switches\n\n"); |
8d063cd8 |
174 | if (do_opens && opens) { |
175 | str_scat(str,opens); |
176 | str_free(opens); |
177 | str_cat(str,"\n"); |
178 | } |
179 | str_scat(str,tmpstr); |
180 | str_free(tmpstr); |
181 | #ifdef DEBUGGING |
182 | if (!(debug & 16)) |
183 | #endif |
184 | fixup(str); |
185 | putlines(str); |
378cc40b |
186 | if (checkers) { |
187 | fprintf(stderr, |
188 | "Please check my work on the %d line%s I've marked with \"#???\".\n", |
189 | checkers, checkers == 1 ? "" : "s" ); |
190 | fprintf(stderr, |
191 | "The operation I've selected may be wrong for the operand types.\n"); |
192 | } |
8d063cd8 |
193 | exit(0); |
194 | } |
195 | |
196 | #define RETURN(retval) return (bufptr = s,retval) |
197 | #define XTERM(retval) return (expectterm = TRUE,bufptr = s,retval) |
198 | #define XOP(retval) return (expectterm = FALSE,bufptr = s,retval) |
a687059c |
199 | #define ID(x) return (yylval=string(x,0),expectterm = FALSE,bufptr = s,idtype) |
200 | |
201 | int idtype; |
8d063cd8 |
202 | |
748a9306 |
203 | int |
f0f333f4 |
204 | yylex(void) |
8d063cd8 |
205 | { |
206 | register char *s = bufptr; |
207 | register char *d; |
208 | register int tmp; |
209 | |
210 | retry: |
211 | #ifdef YYDEBUG |
212 | if (yydebug) |
a0d0e21e |
213 | if (strchr(s,'\n')) |
8d063cd8 |
214 | fprintf(stderr,"Tokener at %s",s); |
215 | else |
216 | fprintf(stderr,"Tokener at %s\n",s); |
217 | #endif |
218 | switch (*s) { |
219 | default: |
220 | fprintf(stderr, |
221 | "Unrecognized character %c in file %s line %d--ignoring.\n", |
222 | *s++,filename,line); |
223 | goto retry; |
224 | case '\\': |
bf10efe7 |
225 | s++; |
226 | if (*s && *s != '\n') { |
227 | yyerror("Ignoring spurious backslash"); |
228 | goto retry; |
229 | } |
230 | /*FALLSTHROUGH*/ |
8d063cd8 |
231 | case 0: |
232 | s = str_get(linestr); |
233 | *s = '\0'; |
234 | if (!rsfp) |
235 | RETURN(0); |
236 | line++; |
237 | if ((s = str_gets(linestr, rsfp)) == Nullch) { |
238 | if (rsfp != stdin) |
239 | fclose(rsfp); |
240 | rsfp = Nullfp; |
241 | s = str_get(linestr); |
242 | RETURN(0); |
243 | } |
244 | goto retry; |
245 | case ' ': case '\t': |
246 | s++; |
247 | goto retry; |
248 | case '\n': |
249 | *s = '\0'; |
250 | XTERM(NEWLINE); |
251 | case '#': |
252 | yylval = string(s,0); |
253 | *s = '\0'; |
254 | XTERM(COMMENT); |
255 | case ';': |
256 | tmp = *s++; |
257 | if (*s == '\n') { |
258 | s++; |
259 | XTERM(SEMINEW); |
260 | } |
261 | XTERM(tmp); |
262 | case '(': |
a687059c |
263 | tmp = *s++; |
264 | XTERM(tmp); |
8d063cd8 |
265 | case '{': |
266 | case '[': |
267 | case ')': |
268 | case ']': |
a687059c |
269 | case '?': |
270 | case ':': |
8d063cd8 |
271 | tmp = *s++; |
272 | XOP(tmp); |
273 | case 127: |
274 | s++; |
275 | XTERM('}'); |
276 | case '}': |
277 | for (d = s + 1; isspace(*d); d++) ; |
278 | if (!*d) |
279 | s = d - 1; |
280 | *s = 127; |
281 | XTERM(';'); |
282 | case ',': |
283 | tmp = *s++; |
284 | XTERM(tmp); |
285 | case '~': |
286 | s++; |
378cc40b |
287 | yylval = string("~",1); |
8d063cd8 |
288 | XTERM(MATCHOP); |
289 | case '+': |
290 | case '-': |
291 | if (s[1] == *s) { |
292 | s++; |
293 | if (*s++ == '+') |
294 | XTERM(INCR); |
295 | else |
296 | XTERM(DECR); |
297 | } |
298 | /* FALL THROUGH */ |
299 | case '*': |
300 | case '%': |
a687059c |
301 | case '^': |
8d063cd8 |
302 | tmp = *s++; |
303 | if (*s == '=') { |
a687059c |
304 | if (tmp == '^') |
305 | yylval = string("**=",3); |
306 | else |
307 | yylval = string(s-1,2); |
8d063cd8 |
308 | s++; |
309 | XTERM(ASGNOP); |
310 | } |
311 | XTERM(tmp); |
312 | case '&': |
313 | s++; |
314 | tmp = *s++; |
315 | if (tmp == '&') |
316 | XTERM(ANDAND); |
317 | s--; |
318 | XTERM('&'); |
319 | case '|': |
320 | s++; |
321 | tmp = *s++; |
322 | if (tmp == '|') |
323 | XTERM(OROR); |
324 | s--; |
a687059c |
325 | while (*s == ' ' || *s == '\t') |
326 | s++; |
327 | if (strnEQ(s,"getline",7)) |
328 | XTERM('p'); |
329 | else |
330 | XTERM('|'); |
8d063cd8 |
331 | case '=': |
332 | s++; |
333 | tmp = *s++; |
334 | if (tmp == '=') { |
335 | yylval = string("==",2); |
336 | XTERM(RELOP); |
337 | } |
338 | s--; |
339 | yylval = string("=",1); |
340 | XTERM(ASGNOP); |
341 | case '!': |
342 | s++; |
343 | tmp = *s++; |
344 | if (tmp == '=') { |
345 | yylval = string("!=",2); |
346 | XTERM(RELOP); |
347 | } |
348 | if (tmp == '~') { |
349 | yylval = string("!~",2); |
350 | XTERM(MATCHOP); |
351 | } |
352 | s--; |
353 | XTERM(NOT); |
354 | case '<': |
355 | s++; |
356 | tmp = *s++; |
357 | if (tmp == '=') { |
358 | yylval = string("<=",2); |
359 | XTERM(RELOP); |
360 | } |
361 | s--; |
a687059c |
362 | XTERM('<'); |
8d063cd8 |
363 | case '>': |
364 | s++; |
365 | tmp = *s++; |
378cc40b |
366 | if (tmp == '>') { |
367 | yylval = string(">>",2); |
368 | XTERM(GRGR); |
369 | } |
8d063cd8 |
370 | if (tmp == '=') { |
371 | yylval = string(">=",2); |
372 | XTERM(RELOP); |
373 | } |
374 | s--; |
a687059c |
375 | XTERM('>'); |
8d063cd8 |
376 | |
377 | #define SNARFWORD \ |
378 | d = tokenbuf; \ |
379 | while (isalpha(*s) || isdigit(*s) || *s == '_') \ |
380 | *d++ = *s++; \ |
381 | *d = '\0'; \ |
a687059c |
382 | d = tokenbuf; \ |
383 | if (*s == '(') \ |
384 | idtype = USERFUN; \ |
385 | else \ |
386 | idtype = VAR; |
8d063cd8 |
387 | |
388 | case '$': |
389 | s++; |
390 | if (*s == '0') { |
391 | s++; |
392 | do_chop = TRUE; |
393 | need_entire = TRUE; |
a687059c |
394 | idtype = VAR; |
8d063cd8 |
395 | ID("0"); |
396 | } |
397 | do_split = TRUE; |
398 | if (isdigit(*s)) { |
399 | for (d = s; isdigit(*s); s++) ; |
400 | yylval = string(d,s-d); |
401 | tmp = atoi(d); |
402 | if (tmp > maxfld) |
403 | maxfld = tmp; |
404 | XOP(FIELD); |
405 | } |
406 | split_to_array = set_array_base = TRUE; |
407 | XOP(VFIELD); |
408 | |
409 | case '/': /* may either be division or pattern */ |
410 | if (expectterm) { |
411 | s = scanpat(s); |
412 | XTERM(REGEX); |
413 | } |
414 | tmp = *s++; |
415 | if (*s == '=') { |
416 | yylval = string("/=",2); |
417 | s++; |
418 | XTERM(ASGNOP); |
419 | } |
420 | XTERM(tmp); |
421 | |
422 | case '0': case '1': case '2': case '3': case '4': |
a687059c |
423 | case '5': case '6': case '7': case '8': case '9': case '.': |
8d063cd8 |
424 | s = scannum(s); |
425 | XOP(NUMBER); |
426 | case '"': |
427 | s++; |
428 | s = cpy2(tokenbuf,s,s[-1]); |
429 | if (!*s) |
430 | fatal("String not terminated:\n%s",str_get(linestr)); |
431 | s++; |
432 | yylval = string(tokenbuf,0); |
433 | XOP(STRING); |
434 | |
435 | case 'a': case 'A': |
436 | SNARFWORD; |
a687059c |
437 | if (strEQ(d,"ARGC")) |
438 | set_array_base = TRUE; |
439 | if (strEQ(d,"ARGV")) { |
440 | yylval=numary(string("ARGV",0)); |
441 | XOP(VAR); |
442 | } |
443 | if (strEQ(d,"atan2")) { |
444 | yylval = OATAN2; |
445 | XTERM(FUNN); |
446 | } |
8d063cd8 |
447 | ID(d); |
448 | case 'b': case 'B': |
449 | SNARFWORD; |
450 | if (strEQ(d,"break")) |
451 | XTERM(BREAK); |
452 | if (strEQ(d,"BEGIN")) |
453 | XTERM(BEGIN); |
454 | ID(d); |
455 | case 'c': case 'C': |
456 | SNARFWORD; |
457 | if (strEQ(d,"continue")) |
458 | XTERM(CONTINUE); |
a687059c |
459 | if (strEQ(d,"cos")) { |
460 | yylval = OCOS; |
461 | XTERM(FUN1); |
462 | } |
463 | if (strEQ(d,"close")) { |
464 | do_fancy_opens = 1; |
465 | yylval = OCLOSE; |
466 | XTERM(FUN1); |
467 | } |
468 | if (strEQ(d,"chdir")) |
469 | *d = toupper(*d); |
470 | else if (strEQ(d,"crypt")) |
471 | *d = toupper(*d); |
472 | else if (strEQ(d,"chop")) |
473 | *d = toupper(*d); |
474 | else if (strEQ(d,"chmod")) |
475 | *d = toupper(*d); |
476 | else if (strEQ(d,"chown")) |
477 | *d = toupper(*d); |
8d063cd8 |
478 | ID(d); |
479 | case 'd': case 'D': |
480 | SNARFWORD; |
a687059c |
481 | if (strEQ(d,"do")) |
482 | XTERM(DO); |
483 | if (strEQ(d,"delete")) |
484 | XTERM(DELETE); |
485 | if (strEQ(d,"die")) |
486 | *d = toupper(*d); |
8d063cd8 |
487 | ID(d); |
488 | case 'e': case 'E': |
489 | SNARFWORD; |
490 | if (strEQ(d,"END")) |
491 | XTERM(END); |
492 | if (strEQ(d,"else")) |
493 | XTERM(ELSE); |
494 | if (strEQ(d,"exit")) { |
495 | saw_line_op = TRUE; |
496 | XTERM(EXIT); |
497 | } |
498 | if (strEQ(d,"exp")) { |
499 | yylval = OEXP; |
500 | XTERM(FUN1); |
501 | } |
a687059c |
502 | if (strEQ(d,"elsif")) |
503 | *d = toupper(*d); |
504 | else if (strEQ(d,"eq")) |
505 | *d = toupper(*d); |
506 | else if (strEQ(d,"eval")) |
507 | *d = toupper(*d); |
508 | else if (strEQ(d,"eof")) |
509 | *d = toupper(*d); |
510 | else if (strEQ(d,"each")) |
511 | *d = toupper(*d); |
512 | else if (strEQ(d,"exec")) |
513 | *d = toupper(*d); |
8d063cd8 |
514 | ID(d); |
515 | case 'f': case 'F': |
516 | SNARFWORD; |
517 | if (strEQ(d,"FS")) { |
518 | saw_FS++; |
519 | if (saw_FS == 1 && in_begin) { |
520 | for (d = s; *d && isspace(*d); d++) ; |
521 | if (*d == '=') { |
522 | for (d++; *d && isspace(*d); d++) ; |
523 | if (*d == '"' && d[2] == '"') |
524 | const_FS = d[1]; |
525 | } |
526 | } |
527 | ID(tokenbuf); |
528 | } |
8d063cd8 |
529 | if (strEQ(d,"for")) |
530 | XTERM(FOR); |
a687059c |
531 | else if (strEQ(d,"function")) |
532 | XTERM(FUNCTION); |
533 | if (strEQ(d,"FILENAME")) |
534 | d = "ARGV"; |
535 | if (strEQ(d,"foreach")) |
536 | *d = toupper(*d); |
537 | else if (strEQ(d,"format")) |
538 | *d = toupper(*d); |
539 | else if (strEQ(d,"fork")) |
540 | *d = toupper(*d); |
541 | else if (strEQ(d,"fh")) |
542 | *d = toupper(*d); |
8d063cd8 |
543 | ID(d); |
544 | case 'g': case 'G': |
545 | SNARFWORD; |
546 | if (strEQ(d,"getline")) |
547 | XTERM(GETLINE); |
a687059c |
548 | if (strEQ(d,"gsub")) |
549 | XTERM(GSUB); |
550 | if (strEQ(d,"ge")) |
551 | *d = toupper(*d); |
552 | else if (strEQ(d,"gt")) |
553 | *d = toupper(*d); |
554 | else if (strEQ(d,"goto")) |
555 | *d = toupper(*d); |
556 | else if (strEQ(d,"gmtime")) |
557 | *d = toupper(*d); |
8d063cd8 |
558 | ID(d); |
559 | case 'h': case 'H': |
560 | SNARFWORD; |
a687059c |
561 | if (strEQ(d,"hex")) |
562 | *d = toupper(*d); |
8d063cd8 |
563 | ID(d); |
564 | case 'i': case 'I': |
565 | SNARFWORD; |
566 | if (strEQ(d,"if")) |
567 | XTERM(IF); |
568 | if (strEQ(d,"in")) |
569 | XTERM(IN); |
570 | if (strEQ(d,"index")) { |
571 | set_array_base = TRUE; |
572 | XTERM(INDEX); |
573 | } |
574 | if (strEQ(d,"int")) { |
575 | yylval = OINT; |
576 | XTERM(FUN1); |
577 | } |
578 | ID(d); |
579 | case 'j': case 'J': |
580 | SNARFWORD; |
a687059c |
581 | if (strEQ(d,"join")) |
582 | *d = toupper(*d); |
8d063cd8 |
583 | ID(d); |
584 | case 'k': case 'K': |
585 | SNARFWORD; |
a687059c |
586 | if (strEQ(d,"keys")) |
587 | *d = toupper(*d); |
588 | else if (strEQ(d,"kill")) |
589 | *d = toupper(*d); |
8d063cd8 |
590 | ID(d); |
591 | case 'l': case 'L': |
592 | SNARFWORD; |
593 | if (strEQ(d,"length")) { |
594 | yylval = OLENGTH; |
595 | XTERM(FUN1); |
596 | } |
597 | if (strEQ(d,"log")) { |
598 | yylval = OLOG; |
599 | XTERM(FUN1); |
600 | } |
a687059c |
601 | if (strEQ(d,"last")) |
602 | *d = toupper(*d); |
603 | else if (strEQ(d,"local")) |
604 | *d = toupper(*d); |
605 | else if (strEQ(d,"lt")) |
606 | *d = toupper(*d); |
607 | else if (strEQ(d,"le")) |
608 | *d = toupper(*d); |
609 | else if (strEQ(d,"locatime")) |
610 | *d = toupper(*d); |
611 | else if (strEQ(d,"link")) |
612 | *d = toupper(*d); |
8d063cd8 |
613 | ID(d); |
614 | case 'm': case 'M': |
615 | SNARFWORD; |
a687059c |
616 | if (strEQ(d,"match")) { |
617 | set_array_base = TRUE; |
618 | XTERM(MATCH); |
619 | } |
620 | if (strEQ(d,"m")) |
621 | *d = toupper(*d); |
8d063cd8 |
622 | ID(d); |
623 | case 'n': case 'N': |
624 | SNARFWORD; |
625 | if (strEQ(d,"NF")) |
87250799 |
626 | do_chop = do_split = split_to_array = set_array_base = TRUE; |
8d063cd8 |
627 | if (strEQ(d,"next")) { |
628 | saw_line_op = TRUE; |
629 | XTERM(NEXT); |
630 | } |
a687059c |
631 | if (strEQ(d,"ne")) |
632 | *d = toupper(*d); |
8d063cd8 |
633 | ID(d); |
634 | case 'o': case 'O': |
635 | SNARFWORD; |
636 | if (strEQ(d,"ORS")) { |
637 | saw_ORS = TRUE; |
a687059c |
638 | d = "\\"; |
8d063cd8 |
639 | } |
640 | if (strEQ(d,"OFS")) { |
641 | saw_OFS = TRUE; |
a687059c |
642 | d = ","; |
8d063cd8 |
643 | } |
644 | if (strEQ(d,"OFMT")) { |
a687059c |
645 | d = "#"; |
8d063cd8 |
646 | } |
a687059c |
647 | if (strEQ(d,"open")) |
648 | *d = toupper(*d); |
649 | else if (strEQ(d,"ord")) |
650 | *d = toupper(*d); |
651 | else if (strEQ(d,"oct")) |
652 | *d = toupper(*d); |
8d063cd8 |
653 | ID(d); |
654 | case 'p': case 'P': |
655 | SNARFWORD; |
656 | if (strEQ(d,"print")) { |
657 | XTERM(PRINT); |
658 | } |
659 | if (strEQ(d,"printf")) { |
660 | XTERM(PRINTF); |
661 | } |
a687059c |
662 | if (strEQ(d,"push")) |
663 | *d = toupper(*d); |
664 | else if (strEQ(d,"pop")) |
665 | *d = toupper(*d); |
8d063cd8 |
666 | ID(d); |
667 | case 'q': case 'Q': |
668 | SNARFWORD; |
669 | ID(d); |
670 | case 'r': case 'R': |
671 | SNARFWORD; |
672 | if (strEQ(d,"RS")) { |
a687059c |
673 | d = "/"; |
8d063cd8 |
674 | saw_RS = TRUE; |
675 | } |
a687059c |
676 | if (strEQ(d,"rand")) { |
677 | yylval = ORAND; |
678 | XTERM(FUN1); |
679 | } |
680 | if (strEQ(d,"return")) |
681 | XTERM(RET); |
682 | if (strEQ(d,"reset")) |
683 | *d = toupper(*d); |
684 | else if (strEQ(d,"redo")) |
685 | *d = toupper(*d); |
686 | else if (strEQ(d,"rename")) |
687 | *d = toupper(*d); |
8d063cd8 |
688 | ID(d); |
689 | case 's': case 'S': |
690 | SNARFWORD; |
691 | if (strEQ(d,"split")) { |
692 | set_array_base = TRUE; |
693 | XOP(SPLIT); |
694 | } |
695 | if (strEQ(d,"substr")) { |
696 | set_array_base = TRUE; |
697 | XTERM(SUBSTR); |
698 | } |
a687059c |
699 | if (strEQ(d,"sub")) |
700 | XTERM(SUB); |
8d063cd8 |
701 | if (strEQ(d,"sprintf")) |
702 | XTERM(SPRINTF); |
703 | if (strEQ(d,"sqrt")) { |
704 | yylval = OSQRT; |
705 | XTERM(FUN1); |
706 | } |
a687059c |
707 | if (strEQ(d,"SUBSEP")) { |
708 | d = ";"; |
709 | } |
710 | if (strEQ(d,"sin")) { |
711 | yylval = OSIN; |
712 | XTERM(FUN1); |
713 | } |
714 | if (strEQ(d,"srand")) { |
715 | yylval = OSRAND; |
716 | XTERM(FUN1); |
717 | } |
718 | if (strEQ(d,"system")) { |
719 | yylval = OSYSTEM; |
720 | XTERM(FUN1); |
721 | } |
722 | if (strEQ(d,"s")) |
723 | *d = toupper(*d); |
724 | else if (strEQ(d,"shift")) |
725 | *d = toupper(*d); |
726 | else if (strEQ(d,"select")) |
727 | *d = toupper(*d); |
728 | else if (strEQ(d,"seek")) |
729 | *d = toupper(*d); |
730 | else if (strEQ(d,"stat")) |
731 | *d = toupper(*d); |
732 | else if (strEQ(d,"study")) |
733 | *d = toupper(*d); |
734 | else if (strEQ(d,"sleep")) |
735 | *d = toupper(*d); |
736 | else if (strEQ(d,"symlink")) |
737 | *d = toupper(*d); |
738 | else if (strEQ(d,"sort")) |
739 | *d = toupper(*d); |
8d063cd8 |
740 | ID(d); |
741 | case 't': case 'T': |
742 | SNARFWORD; |
a687059c |
743 | if (strEQ(d,"tr")) |
744 | *d = toupper(*d); |
745 | else if (strEQ(d,"tell")) |
746 | *d = toupper(*d); |
747 | else if (strEQ(d,"time")) |
748 | *d = toupper(*d); |
749 | else if (strEQ(d,"times")) |
750 | *d = toupper(*d); |
8d063cd8 |
751 | ID(d); |
752 | case 'u': case 'U': |
753 | SNARFWORD; |
a687059c |
754 | if (strEQ(d,"until")) |
755 | *d = toupper(*d); |
756 | else if (strEQ(d,"unless")) |
757 | *d = toupper(*d); |
758 | else if (strEQ(d,"umask")) |
759 | *d = toupper(*d); |
760 | else if (strEQ(d,"unshift")) |
761 | *d = toupper(*d); |
762 | else if (strEQ(d,"unlink")) |
763 | *d = toupper(*d); |
764 | else if (strEQ(d,"utime")) |
765 | *d = toupper(*d); |
8d063cd8 |
766 | ID(d); |
767 | case 'v': case 'V': |
768 | SNARFWORD; |
a687059c |
769 | if (strEQ(d,"values")) |
770 | *d = toupper(*d); |
8d063cd8 |
771 | ID(d); |
772 | case 'w': case 'W': |
773 | SNARFWORD; |
774 | if (strEQ(d,"while")) |
775 | XTERM(WHILE); |
a687059c |
776 | if (strEQ(d,"write")) |
777 | *d = toupper(*d); |
778 | else if (strEQ(d,"wait")) |
779 | *d = toupper(*d); |
8d063cd8 |
780 | ID(d); |
781 | case 'x': case 'X': |
782 | SNARFWORD; |
a687059c |
783 | if (strEQ(d,"x")) |
784 | *d = toupper(*d); |
8d063cd8 |
785 | ID(d); |
786 | case 'y': case 'Y': |
787 | SNARFWORD; |
a687059c |
788 | if (strEQ(d,"y")) |
789 | *d = toupper(*d); |
8d063cd8 |
790 | ID(d); |
791 | case 'z': case 'Z': |
792 | SNARFWORD; |
793 | ID(d); |
794 | } |
795 | } |
796 | |
797 | char * |
f0f333f4 |
798 | scanpat(register char *s) |
8d063cd8 |
799 | { |
800 | register char *d; |
801 | |
802 | switch (*s++) { |
803 | case '/': |
804 | break; |
805 | default: |
806 | fatal("Search pattern not found:\n%s",str_get(linestr)); |
807 | } |
378cc40b |
808 | |
809 | d = tokenbuf; |
810 | for (; *s; s++,d++) { |
811 | if (*s == '\\') { |
812 | if (s[1] == '/') |
813 | *d++ = *s++; |
814 | else if (s[1] == '\\') |
815 | *d++ = *s++; |
bf10efe7 |
816 | else if (s[1] == '[') |
817 | *d++ = *s++; |
378cc40b |
818 | } |
819 | else if (*s == '[') { |
820 | *d++ = *s++; |
821 | do { |
822 | if (*s == '\\' && s[1]) |
823 | *d++ = *s++; |
824 | if (*s == '/' || (*s == '-' && s[1] == ']')) |
825 | *d++ = '\\'; |
826 | *d++ = *s++; |
827 | } while (*s && *s != ']'); |
828 | } |
829 | else if (*s == '/') |
830 | break; |
831 | *d = *s; |
832 | } |
833 | *d = '\0'; |
834 | |
8d063cd8 |
835 | if (!*s) |
836 | fatal("Search pattern not terminated:\n%s",str_get(linestr)); |
837 | s++; |
838 | yylval = string(tokenbuf,0); |
839 | return s; |
840 | } |
841 | |
75f92628 |
842 | void |
f0f333f4 |
843 | yyerror(char *s) |
8d063cd8 |
844 | { |
845 | fprintf(stderr,"%s in file %s at line %d\n", |
846 | s,filename,line); |
847 | } |
848 | |
849 | char * |
f0f333f4 |
850 | scannum(register char *s) |
8d063cd8 |
851 | { |
852 | register char *d; |
853 | |
854 | switch (*s) { |
855 | case '1': case '2': case '3': case '4': case '5': |
856 | case '6': case '7': case '8': case '9': case '0' : case '.': |
857 | d = tokenbuf; |
378cc40b |
858 | while (isdigit(*s)) { |
8d063cd8 |
859 | *d++ = *s++; |
378cc40b |
860 | } |
bf10efe7 |
861 | if (*s == '.') { |
862 | if (isdigit(s[1])) { |
378cc40b |
863 | *d++ = *s++; |
bf10efe7 |
864 | while (isdigit(*s)) { |
865 | *d++ = *s++; |
866 | } |
378cc40b |
867 | } |
bf10efe7 |
868 | else |
869 | s++; |
378cc40b |
870 | } |
a0d0e21e |
871 | if (strchr("eE",*s) && strchr("+-0123456789",s[1])) { |
8d063cd8 |
872 | *d++ = *s++; |
378cc40b |
873 | if (*s == '+' || *s == '-') |
874 | *d++ = *s++; |
875 | while (isdigit(*s)) |
876 | *d++ = *s++; |
877 | } |
8d063cd8 |
878 | *d = '\0'; |
879 | yylval = string(tokenbuf,0); |
880 | break; |
881 | } |
882 | return s; |
883 | } |
884 | |
748a9306 |
885 | int |
f0f333f4 |
886 | string(char *ptr, int len) |
8d063cd8 |
887 | { |
888 | int retval = mop; |
889 | |
890 | ops[mop++].ival = OSTRING + (1<<8); |
891 | if (!len) |
892 | len = strlen(ptr); |
f0f333f4 |
893 | ops[mop].cval = (char *) safemalloc(len+1); |
8d063cd8 |
894 | strncpy(ops[mop].cval,ptr,len); |
895 | ops[mop++].cval[len] = '\0'; |
a687059c |
896 | if (mop >= OPSMAX) |
897 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
898 | return retval; |
899 | } |
900 | |
748a9306 |
901 | int |
f0f333f4 |
902 | oper0(int type) |
8d063cd8 |
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 |
f0f333f4 |
915 | oper1(int type, int arg1) |
8d063cd8 |
916 | { |
917 | int retval = mop; |
918 | |
919 | if (type > 255) |
920 | fatal("type > 255 (%d)\n",type); |
921 | ops[mop++].ival = type + (1<<8); |
922 | ops[mop++].ival = arg1; |
a687059c |
923 | if (mop >= OPSMAX) |
924 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
925 | return retval; |
926 | } |
927 | |
748a9306 |
928 | int |
f0f333f4 |
929 | oper2(int type, int arg1, int arg2) |
8d063cd8 |
930 | { |
931 | int retval = mop; |
932 | |
933 | if (type > 255) |
934 | fatal("type > 255 (%d)\n",type); |
935 | ops[mop++].ival = type + (2<<8); |
936 | ops[mop++].ival = arg1; |
937 | ops[mop++].ival = arg2; |
a687059c |
938 | if (mop >= OPSMAX) |
939 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
940 | return retval; |
941 | } |
942 | |
748a9306 |
943 | int |
f0f333f4 |
944 | oper3(int type, int arg1, int arg2, int arg3) |
8d063cd8 |
945 | { |
946 | int retval = mop; |
947 | |
948 | if (type > 255) |
949 | fatal("type > 255 (%d)\n",type); |
950 | ops[mop++].ival = type + (3<<8); |
951 | ops[mop++].ival = arg1; |
952 | ops[mop++].ival = arg2; |
953 | ops[mop++].ival = arg3; |
a687059c |
954 | if (mop >= OPSMAX) |
955 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
956 | return retval; |
957 | } |
958 | |
748a9306 |
959 | int |
f0f333f4 |
960 | oper4(int type, int arg1, int arg2, int arg3, int arg4) |
8d063cd8 |
961 | { |
962 | int retval = mop; |
963 | |
964 | if (type > 255) |
965 | fatal("type > 255 (%d)\n",type); |
966 | ops[mop++].ival = type + (4<<8); |
967 | ops[mop++].ival = arg1; |
968 | ops[mop++].ival = arg2; |
969 | ops[mop++].ival = arg3; |
970 | ops[mop++].ival = arg4; |
a687059c |
971 | if (mop >= OPSMAX) |
972 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
973 | return retval; |
974 | } |
975 | |
748a9306 |
976 | int |
f0f333f4 |
977 | oper5(int type, int arg1, int arg2, int arg3, int arg4, int arg5) |
8d063cd8 |
978 | { |
979 | int retval = mop; |
980 | |
981 | if (type > 255) |
982 | fatal("type > 255 (%d)\n",type); |
983 | ops[mop++].ival = type + (5<<8); |
984 | ops[mop++].ival = arg1; |
985 | ops[mop++].ival = arg2; |
986 | ops[mop++].ival = arg3; |
987 | ops[mop++].ival = arg4; |
988 | ops[mop++].ival = arg5; |
a687059c |
989 | if (mop >= OPSMAX) |
990 | fatal("Recompile a2p with larger OPSMAX\n"); |
8d063cd8 |
991 | return retval; |
992 | } |
993 | |
994 | int depth = 0; |
995 | |
75f92628 |
996 | void |
f0f333f4 |
997 | dump(int branch) |
8d063cd8 |
998 | { |
999 | register int type; |
1000 | register int len; |
1001 | register int i; |
1002 | |
1003 | type = ops[branch].ival; |
1004 | len = type >> 8; |
1005 | type &= 255; |
1006 | for (i=depth; i; i--) |
1007 | printf(" "); |
1008 | if (type == OSTRING) { |
1009 | printf("%-5d\"%s\"\n",branch,ops[branch+1].cval); |
1010 | } |
1011 | else { |
1012 | printf("(%-5d%s %d\n",branch,opname[type],len); |
1013 | depth++; |
1014 | for (i=1; i<=len; i++) |
1015 | dump(ops[branch+i].ival); |
1016 | depth--; |
1017 | for (i=depth; i; i--) |
1018 | printf(" "); |
1019 | printf(")\n"); |
1020 | } |
1021 | } |
1022 | |
748a9306 |
1023 | int |
f0f333f4 |
1024 | bl(int arg, int maybe) |
8d063cd8 |
1025 | { |
1026 | if (!arg) |
1027 | return 0; |
1028 | else if ((ops[arg].ival & 255) != OBLOCK) |
1029 | return oper2(OBLOCK,arg,maybe); |
378cc40b |
1030 | else if ((ops[arg].ival >> 8) < 2) |
8d063cd8 |
1031 | return oper2(OBLOCK,ops[arg+1].ival,maybe); |
1032 | else |
1033 | return arg; |
1034 | } |
1035 | |
75f92628 |
1036 | void |
f0f333f4 |
1037 | fixup(STR *str) |
8d063cd8 |
1038 | { |
1039 | register char *s; |
1040 | register char *t; |
1041 | |
1042 | for (s = str->str_ptr; *s; s++) { |
1043 | if (*s == ';' && s[1] == ' ' && s[2] == '\n') { |
1044 | strcpy(s+1,s+2); |
1045 | s++; |
1046 | } |
1047 | else if (*s == '\n') { |
1048 | for (t = s+1; isspace(*t & 127); t++) ; |
1049 | t--; |
1050 | while (isspace(*t & 127) && *t != '\n') t--; |
1051 | if (*t == '\n' && t-s > 1) { |
1052 | if (s[-1] == '{') |
1053 | s--; |
1054 | strcpy(s+1,t); |
1055 | } |
1056 | s++; |
1057 | } |
1058 | } |
1059 | } |
1060 | |
75f92628 |
1061 | void |
f0f333f4 |
1062 | putlines(STR *str) |
8d063cd8 |
1063 | { |
1064 | register char *d, *s, *t, *e; |
1065 | register int pos, newpos; |
1066 | |
1067 | d = tokenbuf; |
1068 | pos = 0; |
1069 | for (s = str->str_ptr; *s; s++) { |
1070 | *d++ = *s; |
1071 | pos++; |
1072 | if (*s == '\n') { |
1073 | *d = '\0'; |
1074 | d = tokenbuf; |
1075 | pos = 0; |
1076 | putone(); |
1077 | } |
1078 | else if (*s == '\t') |
1079 | pos += 7; |
1080 | if (pos > 78) { /* split a long line? */ |
1081 | *d-- = '\0'; |
1082 | newpos = 0; |
1083 | for (t = tokenbuf; isspace(*t & 127); t++) { |
1084 | if (*t == '\t') |
1085 | newpos += 8; |
1086 | else |
1087 | newpos += 1; |
1088 | } |
1089 | e = d; |
1090 | while (d > tokenbuf && (*d != ' ' || d[-1] != ';')) |
1091 | d--; |
1092 | if (d < t+10) { |
1093 | d = e; |
1094 | while (d > tokenbuf && |
1095 | (*d != ' ' || d[-1] != '|' || d[-2] != '|') ) |
1096 | d--; |
1097 | } |
1098 | if (d < t+10) { |
1099 | d = e; |
1100 | while (d > tokenbuf && |
1101 | (*d != ' ' || d[-1] != '&' || d[-2] != '&') ) |
1102 | d--; |
1103 | } |
1104 | if (d < t+10) { |
1105 | d = e; |
1106 | while (d > tokenbuf && (*d != ' ' || d[-1] != ',')) |
1107 | d--; |
1108 | } |
1109 | if (d < t+10) { |
1110 | d = e; |
1111 | while (d > tokenbuf && *d != ' ') |
1112 | d--; |
1113 | } |
1114 | if (d > t+3) { |
fe14fcc3 |
1115 | char save[2048]; |
1116 | strcpy(save, d); |
1117 | *d = '\n'; |
1118 | d[1] = '\0'; |
8d063cd8 |
1119 | putone(); |
1120 | putchar('\n'); |
1121 | if (d[-1] != ';' && !(newpos % 4)) { |
1122 | *t++ = ' '; |
1123 | *t++ = ' '; |
1124 | newpos += 2; |
1125 | } |
fe14fcc3 |
1126 | strcpy(t,save+1); |
8d063cd8 |
1127 | newpos += strlen(t); |
1128 | d = t + strlen(t); |
1129 | pos = newpos; |
1130 | } |
1131 | else |
1132 | d = e + 1; |
1133 | } |
1134 | } |
1135 | } |
1136 | |
75f92628 |
1137 | void |
f0f333f4 |
1138 | putone(void) |
8d063cd8 |
1139 | { |
1140 | register char *t; |
1141 | |
1142 | for (t = tokenbuf; *t; t++) { |
1143 | *t &= 127; |
1144 | if (*t == 127) { |
1145 | *t = ' '; |
1146 | strcpy(t+strlen(t)-1, "\t#???\n"); |
378cc40b |
1147 | checkers++; |
8d063cd8 |
1148 | } |
1149 | } |
1150 | t = tokenbuf; |
1151 | if (*t == '#') { |
1152 | if (strnEQ(t,"#!/bin/awk",10) || strnEQ(t,"#! /bin/awk",11)) |
1153 | return; |
378cc40b |
1154 | if (strnEQ(t,"#!/usr/bin/awk",14) || strnEQ(t,"#! /usr/bin/awk",15)) |
1155 | return; |
8d063cd8 |
1156 | } |
1157 | fputs(tokenbuf,stdout); |
1158 | } |
1159 | |
748a9306 |
1160 | int |
f0f333f4 |
1161 | numary(int arg) |
8d063cd8 |
1162 | { |
1163 | STR *key; |
1164 | int dummy; |
1165 | |
a687059c |
1166 | key = walk(0,0,arg,&dummy,P_MIN); |
8d063cd8 |
1167 | str_cat(key,"[]"); |
1168 | hstore(symtab,key->str_ptr,str_make("1")); |
1169 | str_free(key); |
1170 | set_array_base = TRUE; |
1171 | return arg; |
1172 | } |
a687059c |
1173 | |
748a9306 |
1174 | int |
f0f333f4 |
1175 | rememberargs(int arg) |
a687059c |
1176 | { |
1177 | int type; |
1178 | STR *str; |
1179 | |
1180 | if (!arg) |
1181 | return arg; |
1182 | type = ops[arg].ival & 255; |
1183 | if (type == OCOMMA) { |
1184 | rememberargs(ops[arg+1].ival); |
1185 | rememberargs(ops[arg+3].ival); |
1186 | } |
1187 | else if (type == OVAR) { |
1188 | str = str_new(0); |
1189 | hstore(curarghash,ops[ops[arg+1].ival+1].cval,str); |
1190 | } |
1191 | else |
1192 | fatal("panic: unknown argument type %d, line %d\n",type,line); |
1193 | return arg; |
1194 | } |
1195 | |
748a9306 |
1196 | int |
f0f333f4 |
1197 | aryrefarg(int arg) |
a687059c |
1198 | { |
1199 | int type = ops[arg].ival & 255; |
1200 | STR *str; |
1201 | |
1202 | if (type != OSTRING) |
1203 | fatal("panic: aryrefarg %d, line %d\n",type,line); |
1204 | str = hfetch(curarghash,ops[arg+1].cval); |
1205 | if (str) |
1206 | str_set(str,"*"); |
1207 | return arg; |
1208 | } |
1209 | |
748a9306 |
1210 | int |
f0f333f4 |
1211 | fixfargs(int name, int arg, int prevargs) |
a687059c |
1212 | { |
1213 | int type; |
1214 | STR *str; |
1215 | int numargs; |
1216 | |
1217 | if (!arg) |
1218 | return prevargs; |
1219 | type = ops[arg].ival & 255; |
1220 | if (type == OCOMMA) { |
1221 | numargs = fixfargs(name,ops[arg+1].ival,prevargs); |
1222 | numargs = fixfargs(name,ops[arg+3].ival,numargs); |
1223 | } |
1224 | else if (type == OVAR) { |
1225 | str = hfetch(curarghash,ops[ops[arg+1].ival+1].cval); |
1226 | if (strEQ(str_get(str),"*")) { |
1227 | char tmpbuf[128]; |
1228 | |
1229 | str_set(str,""); /* in case another routine has this */ |
1230 | ops[arg].ival &= ~255; |
1231 | ops[arg].ival |= OSTAR; |
1232 | sprintf(tmpbuf,"%s:%d",ops[name+1].cval,prevargs); |
1233 | fprintf(stderr,"Adding %s\n",tmpbuf); |
1234 | str = str_new(0); |
1235 | str_set(str,"*"); |
1236 | hstore(curarghash,tmpbuf,str); |
1237 | } |
1238 | numargs = prevargs + 1; |
1239 | } |
1240 | else |
1241 | fatal("panic: unknown argument type %d, arg %d, line %d\n", |
39c3038c |
1242 | type,prevargs+1,line); |
a687059c |
1243 | return numargs; |
1244 | } |
1245 | |
748a9306 |
1246 | int |
f0f333f4 |
1247 | fixrargs(char *name, int arg, int prevargs) |
a687059c |
1248 | { |
1249 | int type; |
1250 | STR *str; |
1251 | int numargs; |
1252 | |
1253 | if (!arg) |
1254 | return prevargs; |
1255 | type = ops[arg].ival & 255; |
1256 | if (type == OCOMMA) { |
1257 | numargs = fixrargs(name,ops[arg+1].ival,prevargs); |
1258 | numargs = fixrargs(name,ops[arg+3].ival,numargs); |
1259 | } |
1260 | else { |
f0f333f4 |
1261 | char *tmpbuf = (char *) safemalloc(strlen(name) + (sizeof(prevargs) * 3) + 5); |
a687059c |
1262 | sprintf(tmpbuf,"%s:%d",name,prevargs); |
1263 | str = hfetch(curarghash,tmpbuf); |
ece629c6 |
1264 | safefree(tmpbuf); |
a687059c |
1265 | if (str && strEQ(str->str_ptr,"*")) { |
1266 | if (type == OVAR || type == OSTAR) { |
1267 | ops[arg].ival &= ~255; |
1268 | ops[arg].ival |= OSTAR; |
1269 | } |
1270 | else |
1271 | fatal("Can't pass expression by reference as arg %d of %s\n", |
1272 | prevargs+1, name); |
1273 | } |
1274 | numargs = prevargs + 1; |
1275 | } |
1276 | return numargs; |
1277 | } |