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The C Users' Group Library 1994 August
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wc-cdrom-cusersgrouplibrary-1994-08.iso
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vol_300
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334_01
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doc2gih.c
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1991-02-05
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/*
* doc2gih.c -- program to convert Gnuplot .DOC format to gnuplot
* interactive help (.GIH) format.
*
* This involves stripping all lines with a leading digit or
* a leading @, #, or %.
* Modified by Russell Lang from hlp2ms.c by Thomas Williams
*
* usage: doc2gih < file.doc > file.gih
*
* Original version by David Kotz used the following one line script!
* sed '/^[0-9@#%]/d' file.doc > file.gih
*/
#include <stdio.h>
#include <ctype.h>
#define MAX_LINE_LEN 256
#define TRUE 1
#define FALSE 0
main(argc,argv)
int argc;
char **argv;
{
FILE * infile;
FILE * outfile;
infile = stdin;
outfile = stdout;
if (argc > 3) {
fprintf(stderr,"Usage: %s infile outfile\n", argv[0]);
exit(1);
}
if (argc >= 2)
if ( (infile = fopen(argv[1],"r")) == (FILE *)NULL) {
fprintf(stderr,"%s: Can't open %s for reading\n",
argv[0], argv[1]);
exit(1);
}
if (argc == 3)
if ( (outfile = fopen(argv[2],"w")) == (FILE *)NULL) {
fprintf(stderr,"%s: Can't open %s for writing\n",
argv[0], argv[2]);
}
convert(infile,outfile);
exit(0);
}
convert(a,b)
FILE *a,*b;
{
static char line[MAX_LINE_LEN];
while (fgets(line,MAX_LINE_LEN,a)) {
process_line(line, b);
}
}
process_line(line, b)
char *line;
FILE *b;
{
switch(line[0]) { /* control character */
case '?': { /* interactive help entry */
(void) fputs(line,b);
break;
}
case '@': { /* start/end table */
break; /* ignore */
}
case '#': { /* latex table entry */
break; /* ignore */
}
case '%': { /* troff table entry */
break; /* ignore */
}
case '\n': /* empty text line */
case ' ': { /* normal text line */
(void) fputs(line,b);
break;
}
default: {
if (isdigit(line[0])) { /* start of section */
/* ignore */
} else
fprintf(stderr, "unknown control code '%c' in column 1\n",
line[0]);
break;
}
}
}