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https://github.com/berkeleydb/libdb.git
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67 lines
1.2 KiB
C
67 lines
1.2 KiB
C
/*
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* Simple string replacement utility
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*/
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#include <string.h>
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#include <stdio.h>
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int
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main(int argc, char **argv)
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{
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int i;
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char line[512];
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if (argc < 2 || argc % 2 != 1) {
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fprintf(stderr, "usage: %s search1 replace1 ..\n", argv[0]);
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exit(1);
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}
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for (i = 1 + 1; i < argc; i += 2) {
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if (argv[i][0] == '@') {
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int len, off = 1;
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FILE *f;
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if (argv[i][1] == '@') {
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off++;
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}
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f = fopen(argv[i] + off, "r");
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if (f == NULL) {
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fprintf(stderr, "unable to read %s\n", argv[i] + off);
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exit(1);
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}
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line[0] = '\0';
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fgets(line, sizeof (line), f);
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fclose(f);
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len = strlen(line);
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if (len) {
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line[len - 1] = '\0';
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}
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if (off > 1) {
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int x = 0, y = 0, z = 0;
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sscanf(line, "%d.%d.%d", &x, &y, &z);
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sprintf(line, "%d", x * 100000 + y * 1000 + z);
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}
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argv[i] = strdup(line);
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}
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}
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while (fgets(line, sizeof (line), stdin) != NULL) {
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int found = 0;
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for (i = 1; i < argc; i += 2) {
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char *p = strstr(line, argv[i]);
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if (p != NULL) {
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fwrite(line, p - line, 1, stdout);
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fputs(argv[i + 1], stdout);
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p += strlen(argv[i]);
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fputs(p, stdout);
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found = 1;
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break;
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}
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}
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if (!found) {
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fputs(line, stdout);
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}
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}
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exit(0);
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}
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