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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
     54 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
     76 appropriate); keep intact the notices on all files that refer to this
     77 License Agreement and to the absence of any warranty; and give any other
     78 recipients of the Ghostscript program a copy of this License Agreement
     79 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
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    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  * <ghost (at) aladdin.com>.  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 		<tgl (at) sss.pgh.pa.us>
    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 <pinard (at) iro.umontreal.ca>;
    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 <pinard (at) iro.umontreal.ca>;
    223 		properly erase prototype args in function parameters,
    224 		contributed by Jim Avera <jima (at) netcom.com>;
    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