/* * Simple string replacement utility * * $Id: fixup.c,v 1.2 2005/06/14 06:07:43 chw Exp chw $ */#include <string.h>#include <stdio.h>intmain(int argc, char **argv){    int i;    char line[512];    if (argc < 2 || argc % 2 != 1) {	fprintf(stderr, "usage: %s search1 replace1 ..\n", argv[0]);	exit(1);    }    for (i = 1 + 1; i < argc; i += 2) {	if (argv[i][0] == '@') {	    int len, off = 1;	    FILE *f;	    if (argv[i][1] == '@') {		off++;	    }	    f = fopen(argv[i] + off, "r");	    if (f == NULL) {		fprintf(stderr, "unable to read %s\n", argv[i] + off);		exit(1);	    }	    line[0] = '\0';	    fgets(line, sizeof (line), f);	    fclose(f);	    len = strlen(line);	    if (len) {		line[len - 1] = '\0';	    }	    if (off > 1) {		int x = 0, y = 0, z = 0;		sscanf(line, "%d.%d.%d", &x, &y, &z);		sprintf(line, "%d", x * 100000 + y * 1000 + z);	    }	    argv[i] = strdup(line);	}    }    while (fgets(line, sizeof (line), stdin) != NULL) {	int found = 0;	for (i = 1; i < argc; i += 2) {	    char *p = strstr(line, argv[i]);	    if (p != NULL) {		fwrite(line, p - line, 1, stdout);		fputs(argv[i + 1], stdout);		p += strlen(argv[i]);		fputs(p, stdout);		found = 1;		break;	    }	}	if (!found) {	    fputs(line, stdout);	}    }    exit(0);}