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- /*
- * This software is Copyright 1988 by Radical Eye Software.
- * All Rights Reserved.
- */
- /*
- * This routine squeezes a PostScript file down to its
- * minimum. We parse and then output it.
- */
- #include <stdio.h>
- #define LINELENGTH (78)
- #define BUFLENGTH (1000)
- #undef putchar
- #define putchar(a) (void)putc(a, out) ;
- FILE *in, *out ;
- static int linepos = 0 ;
- static int lastspecial = 1 ;
- extern int strlen() ;
- /*
- * 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(c)
- char c ;
- {
- if (linepos + 1 > LINELENGTH) {
- putchar('\n') ;
- linepos = 0 ;
- }
- putchar(c) ;
- linepos++ ;
- lastspecial = 1 ;
- }
- void strout(s)
- char *s ;
- {
- if (linepos + strlen(s) > LINELENGTH) {
- putchar('\n') ;
- linepos = 0 ;
- }
- linepos += strlen(s) ;
- while (*s != 0)
- putchar(*s++) ;
- lastspecial = 1 ;
- }
- void cmdout(s)
- char *s ;
- {
- int l ;
-
- l = strlen(s) ;
- if (linepos + l + 1 > LINELENGTH) {
- putchar('\n') ;
- linepos = 0 ;
- lastspecial = 1 ;
- }
- if (! lastspecial) {
- putchar(' ') ;
- linepos++ ;
- }
- while (*s != 0) {
- putchar(*s++) ;
- }
- linepos += l ;
- lastspecial = 0 ;
- }
- char buf[BUFLENGTH] ;
- #ifndef VMS
- void
- #endif
- main(argc, argv)
- int argc ;
- char *argv[] ;
- {
- int c ;
- char *b ;
- char seeking ;
- extern void exit() ;
-
- 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) ;
- }
- (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 %n", 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=='+')) {
- *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*/
- }
-