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tetex-bin  3.0
Defines | Functions | Variables
squeeze.c File Reference
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "dvips.h"

Go to the source code of this file.

Defines

#define LINELENGTH   (72)
#define BUFLENGTH   (1000)
#define putchar(a)   (void)putc(a, out) ;

Functions

void specialout P1C (char, c)
void strout P1C (char *, s)
int main P2C (int, argc, char **, argv)

Variables

FILEin
FILEout
static int linepos = 0
static int lastspecial = 1
char buf [BUFLENGTH]

Define Documentation

#define BUFLENGTH   (1000)

Definition at line 24 of file squeeze.c.

#define LINELENGTH   (72)

Definition at line 23 of file squeeze.c.

#define putchar (   a)    (void)putc(a, out) ;

Definition at line 28 of file squeeze.c.


Function Documentation

void specialout P1C ( char  ,
c   
)

Definition at line 37 of file squeeze.c.

{
   if (linepos + 1 > LINELENGTH) {
      putchar('\n') ;
      linepos = 0 ;
   }
   putchar(c) ;
   linepos++ ;
   lastspecial = 1 ;
}
void strout P1C ( char *  ,
s   
)

Definition at line 47 of file squeeze.c.

{
   if (linepos + strlen(s) > LINELENGTH) {
      putchar('\n') ;
      linepos = 0 ;
   }
   linepos += strlen(s) ;
   while (*s != 0)
      putchar(*s++) ;
   lastspecial = 1 ;
}

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int main P2C ( int  ,
argc  ,
char **  ,
argv   
)

Definition at line 79 of file squeeze.c.

{
   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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Variable Documentation

char buf[BUFLENGTH]

Definition at line 78 of file squeeze.c.

FILE* in

Definition at line 29 of file squeeze.c.

int lastspecial = 1 [static]

Definition at line 31 of file squeeze.c.

int linepos = 0 [static]

Definition at line 30 of file squeeze.c.

FILE * out

Definition at line 29 of file squeeze.c.