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1
/* ansi2knr.c */
2
/* Convert ANSI C function definitions to K&R ("traditional C") syntax */
3

4
/*
5
ansi2knr is distributed in the hope that it will be useful, but WITHOUT ANY
6
WARRANTY.  No author or distributor accepts responsibility to anyone for the
7
consequences of using it or for whether it serves any particular purpose or
8
works at all, unless he says so in writing.  Refer to the GNU General Public
9
License (the "GPL") for full details.
10

11
Everyone is granted permission to copy, modify and redistribute ansi2knr,
12
but only under the conditions described in the GPL.  A copy of this license
13
is supposed to have been given to you along with ansi2knr so you can know
14
your rights and responsibilities.  It should be in a file named COPYLEFT.
15
[In the IJG distribution, the GPL appears below, not in a separate file.]
16
Among other things, the copyright notice and this notice must be preserved
17
on all copies.
18

19
We explicitly state here what we believe is already implied by the GPL: if
20
the ansi2knr program is distributed as a separate set of sources and a
21
separate executable file which are aggregated on a storage medium together
22
with another program, this in itself does not bring the other program under
23
the GPL, nor does the mere fact that such a program or the procedures for
24
constructing it invoke the ansi2knr executable bring any other part of the
25
program under the GPL.
26
*/
27

28
/*
29
---------- Here is the GNU GPL file COPYLEFT, referred to above ----------
30
----- These terms do NOT apply to the JPEG software itself; see README ------
31

32
		    GHOSTSCRIPT GENERAL PUBLIC LICENSE
33
		    (Clarified 11 Feb 1988)
34

35
 Copyright (C) 1988 Richard M. Stallman
36
 Everyone is permitted to copy and distribute verbatim copies of this
37
 license, but changing it is not allowed.  You can also use this wording
38
 to make the terms for other programs.
39

40
  The license agreements of most software companies keep you at the
41
mercy of those companies.  By contrast, our general public license is
42
intended to give everyone the right to share Ghostscript.  To make sure
43
that you get the rights we want you to have, we need to make
44
restrictions that forbid anyone to deny you these rights or to ask you
45
to surrender the rights.  Hence this license agreement.
46

47
  Specifically, we want to make sure that you have the right to give
48
away copies of Ghostscript, that you receive source code or else can get
49
it if you want it, that you can change Ghostscript or use pieces of it
50
in new free programs, and that you know you can do these things.
51

52
  To make sure that everyone has such rights, we have to forbid you to
53
deprive anyone else of these rights.  For example, if you distribute
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copies of Ghostscript, you must give the recipients all the rights that
55
you have.  You must make sure that they, too, receive or can get the
56
source code.  And you must tell them their rights.
57

58
  Also, for our own protection, we must make certain that everyone finds
59
out that there is no warranty for Ghostscript.  If Ghostscript is
60
modified by someone else and passed on, we want its recipients to know
61
that what they have is not what we distributed, so that any problems
62
introduced by others will not reflect on our reputation.
63

64
  Therefore we (Richard M. Stallman and the Free Software Foundation,
65
Inc.) make the following terms which say what you must do to be allowed
66
to distribute or change Ghostscript.
67

68

69
			COPYING POLICIES
70

71
  1. You may copy and distribute verbatim copies of Ghostscript source
72
code as you receive it, in any medium, provided that you conspicuously
73
and appropriately publish on each copy a valid copyright and license
74
notice "Copyright (C) 1989 Aladdin Enterprises.  All rights reserved.
75
Distributed by Free Software Foundation, Inc." (or with whatever year is
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appropriate); keep intact the notices on all files that refer to this
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License Agreement and to the absence of any warranty; and give any other
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recipients of the Ghostscript program a copy of this License Agreement
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along with the program.  You may charge a distribution fee for the
80
physical act of transferring a copy.
81

82
  2. You may modify your copy or copies of Ghostscript or any portion of
83
it, and copy and distribute such modifications under the terms of
84
Paragraph 1 above, provided that you also do the following:
85

86
    a) cause the modified files to carry prominent notices stating
87
    that you changed the files and the date of any change; and
88

89
    b) cause the whole of any work that you distribute or publish,
90
    that in whole or in part contains or is a derivative of Ghostscript
91
    or any part thereof, to be licensed at no charge to all third
92
    parties on terms identical to those contained in this License
93
    Agreement (except that you may choose to grant more extensive
94
    warranty protection to some or all third parties, at your option).
95

96
    c) You may charge a distribution fee for the physical act of
97
    transferring a copy, and you may at your option offer warranty
98
    protection in exchange for a fee.
99

100
Mere aggregation of another unrelated program with this program (or its
101
derivative) on a volume of a storage or distribution medium does not bring
102
the other program under the scope of these terms.
103

104
  3. You may copy and distribute Ghostscript (or a portion or derivative
105
of it, under Paragraph 2) in object code or executable form under the
106
terms of Paragraphs 1 and 2 above provided that you also do one of the
107
following:
108

109
    a) accompany it with the complete corresponding machine-readable
110
    source code, which must be distributed under the terms of
111
    Paragraphs 1 and 2 above; or,
112

113
    b) accompany it with a written offer, valid for at least three
114
    years, to give any third party free (except for a nominal
115
    shipping charge) a complete machine-readable copy of the
116
    corresponding source code, to be distributed under the terms of
117
    Paragraphs 1 and 2 above; or,
118

119
    c) accompany it with the information you received as to where the
120
    corresponding source code may be obtained.  (This alternative is
121
    allowed only for noncommercial distribution and only if you
122
    received the program in object code or executable form alone.)
123

124
For an executable file, complete source code means all the source code for
125
all modules it contains; but, as a special exception, it need not include
126
source code for modules which are standard libraries that accompany the
127
operating system on which the executable file runs.
128

129
  4. You may not copy, sublicense, distribute or transfer Ghostscript
130
except as expressly provided under this License Agreement.  Any attempt
131
otherwise to copy, sublicense, distribute or transfer Ghostscript is
132
void and your rights to use the program under this License agreement
133
shall be automatically terminated.  However, parties who have received
134
computer software programs from you with this License Agreement will not
135
have their licenses terminated so long as such parties remain in full
136
compliance.
137

138
  5. If you wish to incorporate parts of Ghostscript into other free
139
programs whose distribution conditions are different, write to the Free
140
Software Foundation at 675 Mass Ave, Cambridge, MA 02139.  We have not
141
yet worked out a simple rule that can be stated here, but we will often
142
permit this.  We will be guided by the two goals of preserving the free
143
status of all derivatives of our free software and of promoting the
144
sharing and reuse of software.
145

146
Your comments and suggestions about our licensing policies and our
147
software are welcome!  Please contact the Free Software Foundation,
148
Inc., 675 Mass Ave, Cambridge, MA 02139, or call (617) 876-3296.
149

150
		       NO WARRANTY
151

152
  BECAUSE GHOSTSCRIPT IS LICENSED FREE OF CHARGE, WE PROVIDE ABSOLUTELY
153
NO WARRANTY, TO THE EXTENT PERMITTED BY APPLICABLE STATE LAW.  EXCEPT
154
WHEN OTHERWISE STATED IN WRITING, FREE SOFTWARE FOUNDATION, INC, RICHARD
155
M. STALLMAN, ALADDIN ENTERPRISES, L. PETER DEUTSCH, AND/OR OTHER PARTIES
156
PROVIDE GHOSTSCRIPT "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
157
EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
158
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE
159
ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF GHOSTSCRIPT IS WITH
160
YOU.  SHOULD GHOSTSCRIPT PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
161
NECESSARY SERVICING, REPAIR OR CORRECTION.
162

163
  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW WILL RICHARD M.
164
STALLMAN, THE FREE SOFTWARE FOUNDATION, INC., L. PETER DEUTSCH, ALADDIN
165
ENTERPRISES, AND/OR ANY OTHER PARTY WHO MAY MODIFY AND REDISTRIBUTE
166
GHOSTSCRIPT AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING
167
ANY LOST PROFITS, LOST MONIES, OR OTHER SPECIAL, INCIDENTAL OR
168
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
169
(INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED
170
INACCURATE OR LOSSES SUSTAINED BY THIRD PARTIES OR A FAILURE OF THE
171
PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS) GHOSTSCRIPT, EVEN IF YOU
172
HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, OR FOR ANY CLAIM
173
BY ANY OTHER PARTY.
174

175
-------------------- End of file COPYLEFT ------------------------------
176
*/
177

178
/*
179
 * Usage:
180
	ansi2knr input_file [output_file]
181
 * If no output_file is supplied, output goes to stdout.
182
 * There are no error messages.
183
 *
184
 * ansi2knr recognizes function definitions by seeing a non-keyword
185
 * identifier at the left margin, followed by a left parenthesis,
186
 * with a right parenthesis as the last character on the line,
187
 * and with a left brace as the first token on the following line
188
 * (ignoring possible intervening comments).
189
 * It will recognize a multi-line header provided that no intervening
190
 * line ends with a left or right brace or a semicolon.
191
 * These algorithms ignore whitespace and comments, except that
192
 * the function name must be the first thing on the line.
193
 * The following constructs will confuse it:
194
 *	- Any other construct that starts at the left margin and
195
 *	    follows the above syntax (such as a macro or function call).
196
 *	- Some macros that tinker with the syntax of the function header.
197
 */
198

199
/*
200
 * The original and principal author of ansi2knr is L. Peter Deutsch
201
 * <[email protected]>.  Other authors are noted in the change history
202
 * that follows (in reverse chronological order):
203
	lpd 96-01-21 added code to cope with not HAVE_CONFIG_H and with
204
		compilers that don't understand void, as suggested by
205
		Tom Lane
206
	lpd 96-01-15 changed to require that the first non-comment token
207
		on the line following a function header be a left brace,
208
		to reduce sensitivity to macros, as suggested by Tom Lane
209
		<[email protected]>
210
	lpd 95-06-22 removed #ifndefs whose sole purpose was to define
211
		undefined preprocessor symbols as 0; changed all #ifdefs
212
		for configuration symbols to #ifs
213
	lpd 95-04-05 changed copyright notice to make it clear that
214
		including ansi2knr in a program does not bring the entire
215
		program under the GPL
216
	lpd 94-12-18 added conditionals for systems where ctype macros
217
		don't handle 8-bit characters properly, suggested by
218
		Francois Pinard <[email protected]>;
219
		removed --varargs switch (this is now the default)
220
	lpd 94-10-10 removed CONFIG_BROKETS conditional
221
	lpd 94-07-16 added some conditionals to help GNU `configure',
222
		suggested by Francois Pinard <[email protected]>;
223
		properly erase prototype args in function parameters,
224
		contributed by Jim Avera <[email protected]>;
225
		correct error in writeblanks (it shouldn't erase EOLs)
226
	lpd 89-xx-xx original version
227
 */
228

229
/* Most of the conditionals here are to make ansi2knr work with */
230
/* or without the GNU configure machinery. */
231

232
#if HAVE_CONFIG_H
233
# include <config.h>
234
#endif
235

236
#include <stdio.h>
237
#include <ctype.h>
238

239
#if HAVE_CONFIG_H
240

241
/*
242
   For properly autoconfiguring ansi2knr, use AC_CONFIG_HEADER(config.h).
243
   This will define HAVE_CONFIG_H and so, activate the following lines.
244
 */
245

246
# if STDC_HEADERS || HAVE_STRING_H
247
#  include <string.h>
248
# else
249
#  include <strings.h>
250
# endif
251

252
#else /* not HAVE_CONFIG_H */
253

254
/* Otherwise do it the hard way */
255

256
# ifdef BSD
257
#  include <strings.h>
258
# else
259
#  ifdef VMS
260
    extern int strlen(), strncmp();
261
#  else
262
#   include <string.h>
263
#  endif
264
# endif
265

266
#endif /* not HAVE_CONFIG_H */
267

268
#if STDC_HEADERS
269
# include <stdlib.h>
270
#else
271
/*
272
   malloc and free should be declared in stdlib.h,
273
   but if you've got a K&R compiler, they probably aren't.
274
 */
275
# ifdef MSDOS
276
#  include <malloc.h>
277
# else
278
#  ifdef VMS
279
     extern char *malloc();
280
     extern void free();
281
#  else
282
     extern char *malloc();
283
     extern int free();
284
#  endif
285
# endif
286

287
#endif
288

289
/*
290
 * The ctype macros don't always handle 8-bit characters correctly.
291
 * Compensate for this here.
292
 */
293
#ifdef isascii
294
#  undef HAVE_ISASCII		/* just in case */
295
#  define HAVE_ISASCII 1
296
#else
297
#endif
298
#if STDC_HEADERS || !HAVE_ISASCII
299
#  define is_ascii(c) 1
300
#else
301
#  define is_ascii(c) isascii(c)
302
#endif
303

304
#define is_space(c) (is_ascii(c) && isspace(c))
305
#define is_alpha(c) (is_ascii(c) && isalpha(c))
306
#define is_alnum(c) (is_ascii(c) && isalnum(c))
307

308
/* Scanning macros */
309
#define isidchar(ch) (is_alnum(ch) || (ch) == '_')
310
#define isidfirstchar(ch) (is_alpha(ch) || (ch) == '_')
311

312
/* Forward references */
313
char *skipspace();
314
int writeblanks();
315
int test1();
316
int convert1();
317

318
/* The main program */
319
int
320
main(argc, argv)
321
    int argc;
322
    char *argv[];
323
{	FILE *in, *out;
324
#define bufsize 5000			/* arbitrary size */
325
	char *buf;
326
	char *line;
327
	char *more;
328
	/*
329
	 * In previous versions, ansi2knr recognized a --varargs switch.
330
	 * If this switch was supplied, ansi2knr would attempt to convert
331
	 * a ... argument to va_alist and va_dcl; if this switch was not
332
	 * supplied, ansi2knr would simply drop any such arguments.
333
	 * Now, ansi2knr always does this conversion, and we only
334
	 * check for this switch for backward compatibility.
335
	 */
336
	int convert_varargs = 1;
337

338
	if ( argc > 1 && argv[1][0] == '-' )
339
	  {	if ( !strcmp(argv[1], "--varargs") )
340
		  {	convert_varargs = 1;
341
			argc--;
342
			argv++;
343
		  }
344
		else
345
		  {	fprintf(stderr, "Unrecognized switch: %s\n", argv[1]);
346
			exit(1);
347
		  }
348
	  }
349
	switch ( argc )
350
	   {
351
	default:
352
		printf("Usage: ansi2knr input_file [output_file]\n");
353
		exit(0);
354
	case 2:
355
		out = stdout;
356
		break;
357
	case 3:
358
		out = fopen(argv[2], "w");
359
		if ( out == NULL )
360
		   {	fprintf(stderr, "Cannot open output file %s\n", argv[2]);
361
			exit(1);
362
		   }
363
	   }
364
	in = fopen(argv[1], "r");
365
	if ( in == NULL )
366
	   {	fprintf(stderr, "Cannot open input file %s\n", argv[1]);
367
		exit(1);
368
	   }
369
	fprintf(out, "#line 1 \"%s\"\n", argv[1]);
370
	buf = malloc(bufsize);
371
	line = buf;
372
	while ( fgets(line, (unsigned)(buf + bufsize - line), in) != NULL )
373
	   {
374
test:		line += strlen(line);
375
		switch ( test1(buf) )
376
		   {
377
		case 2:			/* a function header */
378
			convert1(buf, out, 1, convert_varargs);
379
			break;
380
		case 1:			/* a function */
381
			/* Check for a { at the start of the next line. */
382
			more = ++line;
383
f:			if ( line >= buf + (bufsize - 1) ) /* overflow check */
384
			  goto wl;
385
			if ( fgets(line, (unsigned)(buf + bufsize - line), in) == NULL )
386
			  goto wl;
387
			switch ( *skipspace(more, 1) )
388
			  {
389
			  case '{':
390
			    /* Definitely a function header. */
391
			    convert1(buf, out, 0, convert_varargs);
392
			    fputs(more, out);
393
			    break;
394
			  case 0:
395
			    /* The next line was blank or a comment: */
396
			    /* keep scanning for a non-comment. */
397
			    line += strlen(line);
398
			    goto f;
399
			  default:
400
			    /* buf isn't a function header, but */
401
			    /* more might be. */
402
			    fputs(buf, out);
403
			    strcpy(buf, more);
404
			    line = buf;
405
			    goto test;
406
			  }
407
			break;
408
		case -1:		/* maybe the start of a function */
409
			if ( line != buf + (bufsize - 1) ) /* overflow check */
410
			  continue;
411
			/* falls through */
412
		default:		/* not a function */
413
wl:			fputs(buf, out);
414
			break;
415
		   }
416
		line = buf;
417
	   }
418
	if ( line != buf )
419
	  fputs(buf, out);
420
	free(buf);
421
	fclose(out);
422
	fclose(in);
423
	return 0;
424
}
425

426
/* Skip over space and comments, in either direction. */
427
char *
428
skipspace(p, dir)
429
    register char *p;
430
    register int dir;			/* 1 for forward, -1 for backward */
431
{	for ( ; ; )
432
	   {	while ( is_space(*p) )
433
		  p += dir;
434
		if ( !(*p == '/' && p[dir] == '*') )
435
		  break;
436
		p += dir;  p += dir;
437
		while ( !(*p == '*' && p[dir] == '/') )
438
		   {	if ( *p == 0 )
439
			  return p;	/* multi-line comment?? */
440
			p += dir;
441
		   }
442
		p += dir;  p += dir;
443
	   }
444
	return p;
445
}
446

447
/*
448
 * Write blanks over part of a string.
449
 * Don't overwrite end-of-line characters.
450
 */
451
int
452
writeblanks(start, end)
453
    char *start;
454
    char *end;
455
{	char *p;
456
	for ( p = start; p < end; p++ )
457
	  if ( *p != '\r' && *p != '\n' )
458
	    *p = ' ';
459
	return 0;
460
}
461

462
/*
463
 * Test whether the string in buf is a function definition.
464
 * The string may contain and/or end with a newline.
465
 * Return as follows:
466
 *	0 - definitely not a function definition;
467
 *	1 - definitely a function definition;
468
 *	2 - definitely a function prototype (NOT USED);
469
 *	-1 - may be the beginning of a function definition,
470
 *		append another line and look again.
471
 * The reason we don't attempt to convert function prototypes is that
472
 * Ghostscript's declaration-generating macros look too much like
473
 * prototypes, and confuse the algorithms.
474
 */
475
int
476
test1(buf)
477
    char *buf;
478
{	register char *p = buf;
479
	char *bend;
480
	char *endfn;
481
	int contin;
482

483
	if ( !isidfirstchar(*p) )
484
	  return 0;		/* no name at left margin */
485
	bend = skipspace(buf + strlen(buf) - 1, -1);
486
	switch ( *bend )
487
	   {
488
	   case ';': contin = 0 /*2*/; break;
489
	   case ')': contin = 1; break;
490
	   case '{': return 0;		/* not a function */
491
	   case '}': return 0;		/* not a function */
492
	   default: contin = -1;
493
	   }
494
	while ( isidchar(*p) )
495
	  p++;
496
	endfn = p;
497
	p = skipspace(p, 1);
498
	if ( *p++ != '(' )
499
	  return 0;		/* not a function */
500
	p = skipspace(p, 1);
501
	if ( *p == ')' )
502
	  return 0;		/* no parameters */
503
	/* Check that the apparent function name isn't a keyword. */
504
	/* We only need to check for keywords that could be followed */
505
	/* by a left parenthesis (which, unfortunately, is most of them). */
506
	   {	static char *words[] =
507
		   {	"asm", "auto", "case", "char", "const", "double",
508
			"extern", "float", "for", "if", "int", "long",
509
			"register", "return", "short", "signed", "sizeof",
510
			"static", "switch", "typedef", "unsigned",
511
			"void", "volatile", "while", 0
512
		   };
513
		char **key = words;
514
		char *kp;
515
		int len = endfn - buf;
516

517
		while ( (kp = *key) != 0 )
518
		   {	if ( strlen(kp) == len && !strncmp(kp, buf, len) )
519
			  return 0;	/* name is a keyword */
520
			key++;
521
		   }
522
	   }
523
	return contin;
524
}
525

526
/* Convert a recognized function definition or header to K&R syntax. */
527
int
528
convert1(buf, out, header, convert_varargs)
529
    char *buf;
530
    FILE *out;
531
    int header;			/* Boolean */
532
    int convert_varargs;	/* Boolean */
533
{	char *endfn;
534
	register char *p;
535
	char **breaks;
536
	unsigned num_breaks = 2;	/* for testing */
537
	char **btop;
538
	char **bp;
539
	char **ap;
540
	char *vararg = 0;
541

542
	/* Pre-ANSI implementations don't agree on whether strchr */
543
	/* is called strchr or index, so we open-code it here. */
544
	for ( endfn = buf; *(endfn++) != '('; )
545
	  ;
546
top:	p = endfn;
547
	breaks = (char **)malloc(sizeof(char *) * num_breaks * 2);
548
	if ( breaks == 0 )
549
	   {	/* Couldn't allocate break table, give up */
550
		fprintf(stderr, "Unable to allocate break table!\n");
551
		fputs(buf, out);
552
		return -1;
553
	   }
554
	btop = breaks + num_breaks * 2 - 2;
555
	bp = breaks;
556
	/* Parse the argument list */
557
	do
558
	   {	int level = 0;
559
		char *lp = NULL;
560
		char *rp;
561
		char *end = NULL;
562

563
		if ( bp >= btop )
564
		   {	/* Filled up break table. */
565
			/* Allocate a bigger one and start over. */
566
			free((char *)breaks);
567
			num_breaks <<= 1;
568
			goto top;
569
		   }
570
		*bp++ = p;
571
		/* Find the end of the argument */
572
		for ( ; end == NULL; p++ )
573
		   {	switch(*p)
574
			   {
575
			   case ',':
576
				if ( !level ) end = p;
577
				break;
578
			   case '(':
579
				if ( !level ) lp = p;
580
				level++;
581
				break;
582
			   case ')':
583
				if ( --level < 0 ) end = p;
584
				else rp = p;
585
				break;
586
			   case '/':
587
				p = skipspace(p, 1) - 1;
588
				break;
589
			   default:
590
				;
591
			   }
592
		   }
593
		/* Erase any embedded prototype parameters. */
594
		if ( lp )
595
		  writeblanks(lp + 1, rp);
596
		p--;			/* back up over terminator */
597
		/* Find the name being declared. */
598
		/* This is complicated because of procedure and */
599
		/* array modifiers. */
600
		for ( ; ; )
601
		   {	p = skipspace(p - 1, -1);
602
			switch ( *p )
603
			   {
604
			   case ']':	/* skip array dimension(s) */
605
			   case ')':	/* skip procedure args OR name */
606
			   {	int level = 1;
607
				while ( level )
608
				 switch ( *--p )
609
				   {
610
				   case ']': case ')': level++; break;
611
				   case '[': case '(': level--; break;
612
				   case '/': p = skipspace(p, -1) + 1; break;
613
				   default: ;
614
				   }
615
			   }
616
				if ( *p == '(' && *skipspace(p + 1, 1) == '*' )
617
				   {	/* We found the name being declared */
618
					while ( !isidfirstchar(*p) )
619
					  p = skipspace(p, 1) + 1;
620
					goto found;
621
				   }
622
				break;
623
			   default:
624
				goto found;
625
			   }
626
		   }
627
found:		if ( *p == '.' && p[-1] == '.' && p[-2] == '.' )
628
		  {	if ( convert_varargs )
629
			  {	*bp++ = "va_alist";
630
				vararg = p-2;
631
			  }
632
			else
633
			  {	p++;
634
				if ( bp == breaks + 1 )	/* sole argument */
635
				  writeblanks(breaks[0], p);
636
				else
637
				  writeblanks(bp[-1] - 1, p);
638
				bp--;
639
			  }
640
		   }
641
		else
642
		   {	while ( isidchar(*p) ) p--;
643
			*bp++ = p+1;
644
		   }
645
		p = end;
646
	   }
647
	while ( *p++ == ',' );
648
	*bp = p;
649
	/* Make a special check for 'void' arglist */
650
	if ( bp == breaks+2 )
651
	   {	p = skipspace(breaks[0], 1);
652
		if ( !strncmp(p, "void", 4) )
653
		   {	p = skipspace(p+4, 1);
654
			if ( p == breaks[2] - 1 )
655
			   {	bp = breaks;	/* yup, pretend arglist is empty */
656
				writeblanks(breaks[0], p + 1);
657
			   }
658
		   }
659
	   }
660
	/* Put out the function name and left parenthesis. */
661
	p = buf;
662
	while ( p != endfn ) putc(*p, out), p++;
663
	/* Put out the declaration. */
664
	if ( header )
665
	  {	fputs(");", out);
666
		for ( p = breaks[0]; *p; p++ )
667
		  if ( *p == '\r' || *p == '\n' )
668
		    putc(*p, out);
669
	  }
670
	else
671
	  {	for ( ap = breaks+1; ap < bp; ap += 2 )
672
		  {	p = *ap;
673
			while ( isidchar(*p) )
674
			  putc(*p, out), p++;
675
			if ( ap < bp - 1 )
676
			  fputs(", ", out);
677
		  }
678
		fputs(")  ", out);
679
		/* Put out the argument declarations */
680
		for ( ap = breaks+2; ap <= bp; ap += 2 )
681
		  (*ap)[-1] = ';';
682
		if ( vararg != 0 )
683
		  {	*vararg = 0;
684
			fputs(breaks[0], out);		/* any prior args */
685
			fputs("va_dcl", out);		/* the final arg */
686
			fputs(bp[0], out);
687
		  }
688
		else
689
		  fputs(breaks[0], out);
690
	  }
691
	free((char *)breaks);
692
	return 0;
693
}
694

695