Imported Upstream version 1.7.0upstream/1.7.0

1 files changed, 0 insertions, 739 deletions

diff --git a/jpg/ansi2knr.c b/jpg/ansi2knr.c
deleted file mode 100644
index e84c210..0000000
--- a/jpg/ansi2knr.c
+++ /dev/null
@@ -1,739 +0,0 @@
-/* Copyright (C) 1989, 2000 Aladdin Enterprises.  All rights reserved. */
-
-/*$Id: ansi2knr.c,v 1.14 2003/09/06 05:36:56 eggert Exp $*/
-/* Convert ANSI C function definitions to K&R ("traditional C") syntax */
-
-/*
-ansi2knr is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY.  No author or distributor accepts responsibility to anyone for the
-consequences of using it or for whether it serves any particular purpose or
-works at all, unless he says so in writing.  Refer to the GNU General Public
-License (the "GPL") for full details.
-
-Everyone is granted permission to copy, modify and redistribute ansi2knr,
-but only under the conditions described in the GPL.  A copy of this license
-is supposed to have been given to you along with ansi2knr so you can know
-your rights and responsibilities.  It should be in a file named COPYLEFT,
-or, if there is no file named COPYLEFT, a file named COPYING.  Among other
-things, the copyright notice and this notice must be preserved on all
-copies.
-
-We explicitly state here what we believe is already implied by the GPL: if
-the ansi2knr program is distributed as a separate set of sources and a
-separate executable file which are aggregated on a storage medium together
-with another program, this in itself does not bring the other program under
-the GPL, nor does the mere fact that such a program or the procedures for
-constructing it invoke the ansi2knr executable bring any other part of the
-program under the GPL.
-*/
-
-/*
- * Usage:
-	ansi2knr [--filename FILENAME] [INPUT_FILE [OUTPUT_FILE]]
- * --filename provides the file name for the #line directive in the output,
- * overriding input_file (if present).
- * If no input_file is supplied, input is read from stdin.
- * If no output_file is supplied, output goes to stdout.
- * There are no error messages.
- *
- * ansi2knr recognizes function definitions by seeing a non-keyword
- * identifier at the left margin, followed by a left parenthesis, with a
- * right parenthesis as the last character on the line, and with a left
- * brace as the first token on the following line (ignoring possible
- * intervening comments and/or preprocessor directives), except that a line
- * consisting of only
- *	identifier1(identifier2)
- * will not be considered a function definition unless identifier2 is
- * the word "void", and a line consisting of
- *	identifier1(identifier2, <<arbitrary>>)
- * will not be considered a function definition.
- * ansi2knr will recognize a multi-line header provided that no intervening
- * line ends with a left or right brace or a semicolon.  These algorithms
- * ignore whitespace, comments, and preprocessor directives, except that
- * the function name must be the first thing on the line.  The following
- * constructs will confuse it:
- *	- Any other construct that starts at the left margin and
- *	    follows the above syntax (such as a macro or function call).
- *	- Some macros that tinker with the syntax of function headers.
- */
-
-/*
- * The original and principal author of ansi2knr is L. Peter Deutsch
- * <ghost@aladdin.com>.  Other authors are noted in the change history
- * that follows (in reverse chronological order):
-
-	lpd 2000-04-12 backs out Eggert's changes because of bugs:
-	- concatlits didn't declare the type of its bufend argument;
-	- concatlits didn't recognize when it was inside a comment;
-	- scanstring could scan backward past the beginning of the string; when
-	- the check for \ + newline in scanstring was unnecessary.
-
-	2000-03-05  Paul Eggert  <eggert@twinsun.com>
-
-	Add support for concatenated string literals.
-	* ansi2knr.c (concatlits): New decl.
-	(main): Invoke concatlits to concatenate string literals.
-	(scanstring): Handle backslash-newline correctly.  Work with
-	character constants.  Fix bug when scanning backwards through
-	backslash-quote.  Check for unterminated strings.
-	(convert1): Parse character constants, too.
-	(appendline, concatlits): New functions.
-	* ansi2knr.1: Document this.
-
-	lpd 1999-08-17 added code to allow preprocessor directives
-		wherever comments are allowed
-	lpd 1999-04-12 added minor fixes from Pavel Roskin
-		<pavel_roskin@geocities.com> for clean compilation with
-		gcc -W -Wall
-	lpd 1999-03-22 added hack to recognize lines consisting of
-		identifier1(identifier2, xxx) as *not* being procedures
-	lpd 1999-02-03 made indentation of preprocessor commands consistent
-	lpd 1999-01-28 fixed two bugs: a '/' in an argument list caused an
-		endless loop; quoted strings within an argument list
-		confused the parser
-	lpd 1999-01-24 added a check for write errors on the output,
-		suggested by Jim Meyering <meyering@ascend.com>
-	lpd 1998-11-09 added further hack to recognize identifier(void)
-		as being a procedure
-	lpd 1998-10-23 added hack to recognize lines consisting of
-		identifier1(identifier2) as *not* being procedures
-	lpd 1997-12-08 made input_file optional; only closes input and/or
-		output file if not stdin or stdout respectively; prints
-		usage message on stderr rather than stdout; adds
-		--filename switch (changes suggested by
-		<ceder@lysator.liu.se>)
-	lpd 1996-01-21 added code to cope with not HAVE_CONFIG_H and with
-		compilers that don't understand void, as suggested by
-		Tom Lane
-	lpd 1996-01-15 changed to require that the first non-comment token
-		on the line following a function header be a left brace,
-		to reduce sensitivity to macros, as suggested by Tom Lane
-		<tgl@sss.pgh.pa.us>
-	lpd 1995-06-22 removed #ifndefs whose sole purpose was to define
-		undefined preprocessor symbols as 0; changed all #ifdefs
-		for configuration symbols to #ifs
-	lpd 1995-04-05 changed copyright notice to make it clear that
-		including ansi2knr in a program does not bring the entire
-		program under the GPL
-	lpd 1994-12-18 added conditionals for systems where ctype macros
-		don't handle 8-bit characters properly, suggested by
-		Francois Pinard <pinard@iro.umontreal.ca>;
-		removed --varargs switch (this is now the default)
-	lpd 1994-10-10 removed CONFIG_BROKETS conditional
-	lpd 1994-07-16 added some conditionals to help GNU `configure',
-		suggested by Francois Pinard <pinard@iro.umontreal.ca>;
-		properly erase prototype args in function parameters,
-		contributed by Jim Avera <jima@netcom.com>;
-		correct error in writeblanks (it shouldn't erase EOLs)
-	lpd 1989-xx-xx original version
- */
-
-/* Most of the conditionals here are to make ansi2knr work with */
-/* or without the GNU configure machinery. */
-
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-#include <ctype.h>
-
-#if HAVE_CONFIG_H
-
-/*
-   For properly autoconfiguring ansi2knr, use AC_CONFIG_HEADER(config.h).
-   This will define HAVE_CONFIG_H and so, activate the following lines.
- */
-
-# if STDC_HEADERS || HAVE_STRING_H
-#  include <string.h>
-# else
-#  include <strings.h>
-# endif
-
-#else /* not HAVE_CONFIG_H */
-
-/* Otherwise do it the hard way */
-
-# ifdef BSD
-#  include <strings.h>
-# else
-#  ifdef VMS
-    extern int strlen(), strncmp();
-#  else
-#   include <string.h>
-#  endif
-# endif
-
-#endif /* not HAVE_CONFIG_H */
-
-#if STDC_HEADERS
-# include <stdlib.h>
-#else
-/*
-   malloc and free should be declared in stdlib.h,
-   but if you've got a K&R compiler, they probably aren't.
- */
-# ifdef MSDOS
-#  include <malloc.h>
-# else
-#  ifdef VMS
-     extern char *malloc();
-     extern void free();
-#  else
-     extern char *malloc();
-     extern int free();
-#  endif
-# endif
-
-#endif
-
-/* Define NULL (for *very* old compilers). */
-#ifndef NULL
-# define NULL (0)
-#endif
-
-/*
- * The ctype macros don't always handle 8-bit characters correctly.
- * Compensate for this here.
- */
-#ifdef isascii
-# undef HAVE_ISASCII		/* just in case */
-# define HAVE_ISASCII 1
-#else
-#endif
-#if STDC_HEADERS || !HAVE_ISASCII
-# define is_ascii(c) 1
-#else
-# define is_ascii(c) isascii(c)
-#endif
-
-#define is_space(c) (is_ascii(c) && isspace(c))
-#define is_alpha(c) (is_ascii(c) && isalpha(c))
-#define is_alnum(c) (is_ascii(c) && isalnum(c))
-
-/* Scanning macros */
-#define isidchar(ch) (is_alnum(ch) || (ch) == '_')
-#define isidfirstchar(ch) (is_alpha(ch) || (ch) == '_')
-
-/* Forward references */
-char *ppdirforward();
-char *ppdirbackward();
-char *skipspace();
-char *scanstring();
-int writeblanks();
-int test1();
-int convert1();
-
-/* The main program */
-int
-main(argc, argv)
-    int argc;
-    char *argv[];
-{	FILE *in = stdin;
-	FILE *out = stdout;
-	char *filename = 0;
-	char *program_name = argv[0];
-	char *output_name = 0;
-#define bufsize 5000			/* arbitrary size */
-	char *buf;
-	char *line;
-	char *more;
-	char *usage =
-	  "Usage: ansi2knr [--filename FILENAME] [INPUT_FILE [OUTPUT_FILE]]\n";
-	/*
-	 * In previous versions, ansi2knr recognized a --varargs switch.
-	 * If this switch was supplied, ansi2knr would attempt to convert
-	 * a ... argument to va_alist and va_dcl; if this switch was not
-	 * supplied, ansi2knr would simply drop any such arguments.
-	 * Now, ansi2knr always does this conversion, and we only
-	 * check for this switch for backward compatibility.
-	 */
-	int convert_varargs = 1;
-	int output_error;
-
-	while ( argc > 1 && argv[1][0] == '-' ) {
-	  if ( !strcmp(argv[1], "--varargs") ) {
-	    convert_varargs = 1;
-	    argc--;
-	    argv++;
-	    continue;
-	  }
-	  if ( !strcmp(argv[1], "--filename") && argc > 2 ) {
-	    filename = argv[2];
-	    argc -= 2;
-	    argv += 2;
-	    continue;
-	  }
-	  fprintf(stderr, "%s: Unrecognized switch: %s\n", program_name,
-		  argv[1]);
-	  fprintf(stderr, usage);
-	  exit(1);
-	}
-	switch ( argc )
-	   {
-	default:
-		fprintf(stderr, usage);
-		exit(0);
-	case 3:
-		output_name = argv[2];
-		out = fopen(output_name, "w");
-		if ( out == NULL ) {
-		  fprintf(stderr, "%s: Cannot open output file %s\n",
-			  program_name, output_name);
-		  exit(1);
-		}
-		/* falls through */
-	case 2:
-		in = fopen(argv[1], "r");
-		if ( in == NULL ) {
-		  fprintf(stderr, "%s: Cannot open input file %s\n",
-			  program_name, argv[1]);
-		  exit(1);
-		}
-		if ( filename == 0 )
-		  filename = argv[1];
-		/* falls through */
-	case 1:
-		break;
-	   }
-	if ( filename )
-	  fprintf(out, "#line 1 \"%s\"\n", filename);
-	buf = malloc(bufsize);
-	if ( buf == NULL )
-	   {
-		fprintf(stderr, "Unable to allocate read buffer!\n");
-		exit(1);
-	   }
-	line = buf;
-	while ( fgets(line, (unsigned)(buf + bufsize - line), in) != NULL )
-	   {
-test:		line += strlen(line);
-		switch ( test1(buf) )
-		   {
-		case 2:			/* a function header */
-			convert1(buf, out, 1, convert_varargs);
-			break;
-		case 1:			/* a function */
-			/* Check for a { at the start of the next line. */
-			more = ++line;
-f:			if ( line >= buf + (bufsize - 1) ) /* overflow check */
-			  goto wl;
-			if ( fgets(line, (unsigned)(buf + bufsize - line), in) == NULL )
-			  goto wl;
-			switch ( *skipspace(ppdirforward(more), 1) )
-			  {
-			  case '{':
-			    /* Definitely a function header. */
-			    convert1(buf, out, 0, convert_varargs);
-			    fputs(more, out);
-			    break;
-			  case 0:
-			    /* The next line was blank or a comment: */
-			    /* keep scanning for a non-comment. */
-			    line += strlen(line);
-			    goto f;
-			  default:
-			    /* buf isn't a function header, but */
-			    /* more might be. */
-			    fputs(buf, out);
-			    strcpy(buf, more);
-			    line = buf;
-			    goto test;
-			  }
-			break;
-		case -1:		/* maybe the start of a function */
-			if ( line != buf + (bufsize - 1) ) /* overflow check */
-			  continue;
-			/* falls through */
-		default:		/* not a function */
-wl:			fputs(buf, out);
-			break;
-		   }
-		line = buf;
-	   }
-	if ( line != buf )
-	  fputs(buf, out);
-	free(buf);
-	if ( output_name ) {
-	  output_error = ferror(out);
-	  output_error |= fclose(out);
-	} else {		/* out == stdout */
-	  fflush(out);
-	  output_error = ferror(out);
-	}
-	if ( output_error ) {
-	  fprintf(stderr, "%s: error writing to %s\n", program_name,
-		  (output_name ? output_name : "stdout"));
-	  exit(1);
-	}
-	if ( in != stdin )
-	  fclose(in);
-	return 0;
-}
-
-/*
- * Skip forward or backward over one or more preprocessor directives.
- */
-char *
-ppdirforward(p)
-    char *p;
-{
-    for (; *p == '#'; ++p) {
-	for (; *p != '\r' && *p != '\n'; ++p)
-	    if (*p == 0)
-		return p;
-	if (*p == '\r' && p[1] == '\n')
-	    ++p;
-    }
-    return p;
-}
-char *
-ppdirbackward(p, limit)
-    char *p;
-    char *limit;
-{
-    char *np = p;
-
-    for (;; p = --np) {
-	if (*np == '\n' && np[-1] == '\r')
-	    --np;
-	for (; np > limit && np[-1] != '\r' && np[-1] != '\n'; --np)
-	    if (np[-1] == 0)
-		return np;
-	if (*np != '#')
-	    return p;
-    }
-}
-
-/*
- * Skip over whitespace, comments, and preprocessor directives,
- * in either direction.
- */
-char *
-skipspace(p, dir)
-    char *p;
-    int dir;			/* 1 for forward, -1 for backward */
-{
-    for ( ; ; ) {
-	while ( is_space(*p) )
-	    p += dir;
-	if ( !(*p == '/' && p[dir] == '*') )
-	    break;
-	p += dir;  p += dir;
-	while ( !(*p == '*' && p[dir] == '/') ) {
-	    if ( *p == 0 )
-		return p;	/* multi-line comment?? */
-	    p += dir;
-	}
-	p += dir;  p += dir;
-    }
-    return p;
-}
-
-/* Scan over a quoted string, in either direction. */
-char *
-scanstring(p, dir)
-    char *p;
-    int dir;
-{
-    for (p += dir; ; p += dir)
-	if (*p == '"' && p[-dir] != '\\')
-	    return p + dir;
-}
-
-/*
- * Write blanks over part of a string.
- * Don't overwrite end-of-line characters.
- */
-int
-writeblanks(start, end)
-    char *start;
-    char *end;
-{	char *p;
-	for ( p = start; p < end; p++ )
-	  if ( *p != '\r' && *p != '\n' )
-	    *p = ' ';
-	return 0;
-}
-
-/*
- * Test whether the string in buf is a function definition.
- * The string may contain and/or end with a newline.
- * Return as follows:
- *	0 - definitely not a function definition;
- *	1 - definitely a function definition;
- *	2 - definitely a function prototype (NOT USED);
- *	-1 - may be the beginning of a function definition,
- *		append another line and look again.
- * The reason we don't attempt to convert function prototypes is that
- * Ghostscript's declaration-generating macros look too much like
- * prototypes, and confuse the algorithms.
- */
-int
-test1(buf)
-    char *buf;
-{	char *p = buf;
-	char *bend;
-	char *endfn;
-	int contin;
-
-	if ( !isidfirstchar(*p) )
-	  return 0;		/* no name at left margin */
-	bend = skipspace(ppdirbackward(buf + strlen(buf) - 1, buf), -1);
-	switch ( *bend )
-	   {
-	   case ';': contin = 0 /*2*/; break;
-	   case ')': contin = 1; break;
-	   case '{': return 0;		/* not a function */
-	   case '}': return 0;		/* not a function */
-	   default: contin = -1;
-	   }
-	while ( isidchar(*p) )
-	  p++;
-	endfn = p;
-	p = skipspace(p, 1);
-	if ( *p++ != '(' )
-	  return 0;		/* not a function */
-	p = skipspace(p, 1);
-	if ( *p == ')' )
-	  return 0;		/* no parameters */
-	/* Check that the apparent function name isn't a keyword. */
-	/* We only need to check for keywords that could be followed */
-	/* by a left parenthesis (which, unfortunately, is most of them). */
-	   {	static char *words[] =
-		   {	"asm", "auto", "case", "char", "const", "double",
-			"extern", "float", "for", "if", "int", "long",
-			"register", "return", "short", "signed", "sizeof",
-			"static", "switch", "typedef", "unsigned",
-			"void", "volatile", "while", 0
-		   };
-		char **key = words;
-		char *kp;
-		unsigned len = endfn - buf;
-
-		while ( (kp = *key) != 0 )
-		   {	if ( strlen(kp) == len && !strncmp(kp, buf, len) )
-			  return 0;	/* name is a keyword */
-			key++;
-		   }
-	   }
-	   {
-	       char *id = p;
-	       int len;
-	       /*
-		* Check for identifier1(identifier2) and not
-		* identifier1(void), or identifier1(identifier2, xxxx).
-		*/
-
-	       while ( isidchar(*p) )
-		   p++;
-	       len = p - id;
-	       p = skipspace(p, 1);
-	       if (*p == ',' ||
-		   (*p == ')' && (len != 4 || strncmp(id, "void", 4)))
-		   )
-		   return 0;	/* not a function */
-	   }
-	/*
-	 * If the last significant character was a ), we need to count
-	 * parentheses, because it might be part of a formal parameter
-	 * that is a procedure.
-	 */
-	if (contin > 0) {
-	    int level = 0;
-
-	    for (p = skipspace(buf, 1); *p; p = skipspace(p + 1, 1))
-		level += (*p == '(' ? 1 : *p == ')' ? -1 : 0);
-	    if (level > 0)
-		contin = -1;
-	}
-	return contin;
-}
-
-/* Convert a recognized function definition or header to K&R syntax. */
-int
-convert1(buf, out, header, convert_varargs)
-    char *buf;
-    FILE *out;
-    int header;			/* Boolean */
-    int convert_varargs;	/* Boolean */
-{	char *endfn;
-	char *p;
-	/*
-	 * The breaks table contains pointers to the beginning and end
-	 * of each argument.
-	 */
-	char **breaks;
-	unsigned num_breaks = 2;	/* for testing */
-	char **btop;
-	char **bp;
-	char **ap;
-	char *vararg = 0;
-
-	/* Pre-ANSI implementations don't agree on whether strchr */
-	/* is called strchr or index, so we open-code it here. */
-	for ( endfn = buf; *(endfn++) != '('; )
-	  ;
-top:	p = endfn;
-	breaks = (char **)malloc(sizeof(char *) * num_breaks * 2);
-	if ( breaks == NULL )
-	   {	/* Couldn't allocate break table, give up */
-		fprintf(stderr, "Unable to allocate break table!\n");
-		fputs(buf, out);
-		return -1;
-	   }
-	btop = breaks + num_breaks * 2 - 2;
-	bp = breaks;
-	/* Parse the argument list */
-	do
-	   {	int level = 0;
-		char *lp = NULL;
-		char *rp = NULL;
-		char *end = NULL;
-
-		if ( bp >= btop )
-		   {	/* Filled up break table. */
-			/* Allocate a bigger one and start over. */
-			free((char *)breaks);
-			num_breaks <<= 1;
-			goto top;
-		   }
-		*bp++ = p;
-		/* Find the end of the argument */
-		for ( ; end == NULL; p++ )
-		   {	switch(*p)
-			   {
-			   case ',':
-				if ( !level ) end = p;
-				break;
-			   case '(':
-				if ( !level ) lp = p;
-				level++;
-				break;
-			   case ')':
-				if ( --level < 0 ) end = p;
-				else rp = p;
-				break;
-			   case '/':
-				if (p[1] == '*')
-				    p = skipspace(p, 1) - 1;
-				break;
-			   case '"':
-			       p = scanstring(p, 1) - 1;
-			       break;
-			   default:
-				;
-			   }
-		   }
-		/* Erase any embedded prototype parameters. */
-		if ( lp && rp )
-		  writeblanks(lp + 1, rp);
-		p--;			/* back up over terminator */
-		/* Find the name being declared. */
-		/* This is complicated because of procedure and */
-		/* array modifiers. */
-		for ( ; ; )
-		   {	p = skipspace(p - 1, -1);
-			switch ( *p )
-			   {
-			   case ']':	/* skip array dimension(s) */
-			   case ')':	/* skip procedure args OR name */
-			   {	int level = 1;
-				while ( level )
-				 switch ( *--p )
-				   {
-				   case ']': case ')':
-				       level++;
-				       break;
-				   case '[': case '(':
-				       level--;
-				       break;
-				   case '/':
-				       if (p > buf && p[-1] == '*')
-					   p = skipspace(p, -1) + 1;
-				       break;
-				   case '"':
-				       p = scanstring(p, -1) + 1;
-				       break;
-				   default: ;
-				   }
-			   }
-				if ( *p == '(' && *skipspace(p + 1, 1) == '*' )
-				   {	/* We found the name being declared */
-					while ( !isidfirstchar(*p) )
-					  p = skipspace(p, 1) + 1;
-					goto found;
-				   }
-				break;
-			   default:
-				goto found;
-			   }
-		   }
-found:		if ( *p == '.' && p[-1] == '.' && p[-2] == '.' )
-		  {	if ( convert_varargs )
-			  {	*bp++ = "va_alist";
-				vararg = p-2;
-			  }
-			else
-			  {	p++;
-				if ( bp == breaks + 1 )	/* sole argument */
-				  writeblanks(breaks[0], p);
-				else
-				  writeblanks(bp[-1] - 1, p);
-				bp--;
-			  }
-		   }
-		else
-		   {	while ( isidchar(*p) ) p--;
-			*bp++ = p+1;
-		   }
-		p = end;
-	   }
-	while ( *p++ == ',' );
-	*bp = p;
-	/* Make a special check for 'void' arglist */
-	if ( bp == breaks+2 )
-	   {	p = skipspace(breaks[0], 1);
-		if ( !strncmp(p, "void", 4) )
-		   {	p = skipspace(p+4, 1);
-			if ( p == breaks[2] - 1 )
-			   {	bp = breaks;	/* yup, pretend arglist is empty */
-				writeblanks(breaks[0], p + 1);
-			   }
-		   }
-	   }
-	/* Put out the function name and left parenthesis. */
-	p = buf;
-	while ( p != endfn ) putc(*p, out), p++;
-	/* Put out the declaration. */
-	if ( header )
-	  {	fputs(");", out);
-		for ( p = breaks[0]; *p; p++ )
-		  if ( *p == '\r' || *p == '\n' )
-		    putc(*p, out);
-	  }
-	else
-	  {	for ( ap = breaks+1; ap < bp; ap += 2 )
-		  {	p = *ap;
-			while ( isidchar(*p) )
-			  putc(*p, out), p++;
-			if ( ap < bp - 1 )
-			  fputs(", ", out);
-		  }
-		fputs(")  ", out);
-		/* Put out the argument declarations */
-		for ( ap = breaks+2; ap <= bp; ap += 2 )
-		  (*ap)[-1] = ';';
-		if ( vararg != 0 )
-		  {	*vararg = 0;
-			fputs(breaks[0], out);		/* any prior args */
-			fputs("va_dcl", out);		/* the final arg */
-			fputs(bp[0], out);
-		  }
-		else
-		  fputs(breaks[0], out);
-	  }
-	free((char *)breaks);
-	return 0;
-}