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/******************************************************************************
*
* sub.c - This little utility substitutes all occurances of a string
* with another string. Is this useful? Maybe not. But it's
* been here since r2 so it seems a shame to remove it :)
* Currently not built by build system
*
* $Id: sub.c 2833 2013-06-29 06:40:28Z chrislit $
*
* Copyright 1997-2009 CrossWire Bible Society (http://www.crosswire.org)
* CrossWire Bible Society
* P. O. Box 2528
* Tempe, AZ 85280-2528
*
* 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 version 2.
*
* 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.
*
*/
#include <stdio.h>
#include <stdlib.h>
main(int argc, char **argv)
{
FILE *fp;
char *buf;
int size;
if ((argc < 3) || (argc > 4)) {
fprintf(stderr, "usage: %s <string> <substitute string> [filename]\n", *argv);
exit(-1);
}
if (argc > 3)
fp = fopen(argv[3], "r");
else fp = stdin;
size = strlen(argv[1]);
buf = (char *)calloc(size + 1, 1);
while ((buf[size - 1] = fgetc(fp)) != EOF) {
if (!strcmp(buf, argv[1])) {
printf("\n%s", argv[2]);
memset(buf, 0, size);
continue;
}
if (*buf) {
printf("%c", *buf);
}
memmove(buf, &buf[1], size);
}
buf[size - 1] = 0;
printf("%s", buf);
}
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