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/*
* This software is Copyright 1988 by Radical Eye Software.
*/
/*
* This routine squeezes a PostScript file down to its
* minimum. We parse and then output it.
*/
#ifdef KPATHSEA
#include <kpathsea/config.h>
#include <kpathsea/c-fopen.h>
#include <c-auto.h>
#else
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "dvips.h"
#endif
#ifdef fopen
#undef fopen
#endif
#define LINELENGTH (72)
#define BUFLENGTH (1000)
#ifdef putchar
#undef putchar
#endif
#define putchar(a) (void)putc(a, out) ;
FILE *in, *out ;
static int linepos = 0 ;
static int lastspecial = 1 ;
/*
* This next routine writes out a `special' character. In this case,
* we simply put it out, since any special character terminates the
* preceding token.
*/
void specialout P1C(char, c)
{
if (linepos + 1 > LINELENGTH) {
putchar('\n') ;
linepos = 0 ;
}
putchar(c) ;
linepos++ ;
lastspecial = 1 ;
}
void strout P1C(char *, s)
{
if (linepos + strlen(s) > LINELENGTH) {
putchar('\n') ;
linepos = 0 ;
}
linepos += strlen(s) ;
while (*s != 0)
putchar(*s++) ;
lastspecial = 1 ;
}
void cmdout P1C(char *, s)
{
int l ;
l = strlen(s) ;
if (linepos + l + 1 > LINELENGTH) {
putchar('\n') ;
linepos = 0 ;
lastspecial = 1 ;
}
if (! lastspecial && *s != '/') {
putchar(' ') ;
linepos++ ;
}
while (*s != 0) {
putchar(*s++) ;
}
linepos += l ;
lastspecial = 0 ;
}
char buf[BUFLENGTH] ;
int main P2C(int, argc, char **, argv)
{
int c ;
char *b ;
char seeking ;
if (argc > 3 || (in=(argc < 2 ? stdin : fopen(argv[1], "r")))==NULL ||
(out=(argc < 3 ? stdout : fopen(argv[2], "w")))==NULL) {
(void)fprintf(stderr, "Usage: squeeze [infile [outfile]]\n") ;
exit(1) ;
}
/* Binary output is safer (for those systems which care to know the
difference) since PostScript can include non-printable characters. */
if (O_BINARY && !isatty(fileno(in)))
SET_BINARY(fileno(in)) ;
if (O_BINARY && !isatty(fileno(out)))
SET_BINARY(fileno(out)) ;
(void)fprintf(out, "%%!\n") ;
while (1) {
c = getc(in) ;
if (c==EOF)
break ;
if (c=='%') {
while ((c=getc(in))!='\n') ;
}
if (c <= ' ')
continue ;
switch (c) {
case '{' :
case '}' :
case '[' :
case ']' :
specialout(c) ;
break ;
case '<' :
case '(' :
if (c=='(')
seeking = ')' ;
else
seeking = '>' ;
b = buf ;
*b++ = c ;
do {
c = getc(in) ;
if (b > buf + BUFLENGTH-2) {
(void)fprintf(stderr, "Overran buffer seeking %c", seeking) ;
exit(1) ;
}
*b++ = c ;
if (c=='\\')
*b++ = getc(in) ;
} while (c != seeking) ;
*b++ = 0 ;
strout(buf) ;
break ;
default:
b = buf ;
while ((c>='A'&&c<='Z')||(c>='a'&&c<='z')||
(c>='0'&&c<='9')||(c=='/')||(c=='@')||
(c=='!')||(c=='"')||(c=='&')||(c=='*')||(c==':')||
(c==',')||(c==';')||(c=='?')||(c=='^')||(c=='~')||
(c=='-')||(c=='.')||(c=='#')||(c=='|')||(c=='_')||
(c=='=')||(c=='$')||(c=='+')) {
*b++ = c ;
c = getc(in) ;
}
if (b == buf) {
(void)fprintf(stderr, "Oops! Missed a case: %c.\n", c) ;
exit(1) ;
}
*b++ = 0 ;
(void)ungetc(c, in) ;
cmdout(buf) ;
}
}
if (linepos != 0)
putchar('\n') ;
exit(0) ;
/*NOTREACHED*/
}
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