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/* manpage_cleaner - remove the repetition of characters
* Copyright (C) 2000 Romain Lievin
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <strings.h>
#include <unistd.h>
#define MAXCHARS 256
int main(int argc, char **argv)
{
char filename[MAXCHARS];
char filename2[MAXCHARS];
char filename3[MAXCHARS];
FILE *in;
FILE *tmp;
FILE *out;
char buffer[3];
/* Retrieve the command line argument */
if(argc < 2)
{
fprintf(stderr, "You must give a filename on the command line.\n");
exit(1);
}
strcpy(filename, argv[1]);
strcpy(filename2, filename);
strcat(filename2, ".tmp");
strcpy(filename3, filename);
strcat(filename3, ".txt");
fprintf(stdout, "Processing file <%s>:\n", filename);
fprintf(stdout, "Pass 1... ");
/* Open the file for reading */
in = fopen(filename, "rb");
if(in == NULL)
{
fprintf(stderr, "Unable to open this file: <%s>\n", filename);
exit(1);
}
/* Open a temporary file fpr writing */
out = fopen(filename2, "wb");
if(out == NULL)
{
fprintf(stderr, "Unable to open this file: <%s>\n", filename2);
exit(1);
}
/* Process the file for removing backspace sequences */
while(!feof(in))
{
buffer[0] = fgetc(in);
if(feof(in))
{
fputc(buffer[0], out);
break;
}
buffer[1]= fgetc(in);
if(buffer[0] == '\b')
{
continue; // Skip the char and BS
}
if(buffer[1] == '\b')
{
fputc(fgetc(in), out); // Skip the 2 previous chars
continue;
}
fputc(buffer[0], out);
fputc(buffer[1], out);
}
fprintf(stdout, "Done.\n");
/* Close the files */
fclose(in);
fclose(out);
fprintf(stdout, "Pass 2... ");
/* Open the temporary file and another file */
in = fopen(filename2, "rb");
if(in == NULL)
{
fprintf(stderr, "Unable to open this file: <%s>\n", filename);
exit(1);
}
out = fopen(filename3, "wb");
if(out == NULL)
{
fprintf(stderr, "Unable to open this file: <%s>\n", filename2);
exit(1);
}
/* Copy the file */
while(!feof(in))
{
if(feof(in)) break;
fputc(fgetc(in), out);
}
/* Close files */
fclose(in);
fclose(out);
unlink(filename2);
fprintf(stdout, "Done.\n");
return 0;
}
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