source: MondoRescue/branches/2.2.5/mindi-busybox/libbb/compare_string_array.c

/* vi: set sw=4 ts=4: */
/*
 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
 */

#include "libbb.h"

/* returns the array index of the string */
/* (index of first match is returned, or -1) */
int index_in_str_array(const char *const string_array[], const char *key)
{
    int i;

    for (i = 0; string_array[i] != 0; i++) {
        if (strcmp(string_array[i], key) == 0) {
            return i;
        }
    }
    return -1;
}

int index_in_strings(const char *strings, const char *key)
{
    int idx = 0;

    while (strings[0]) {
        if (strcmp(strings, key) == 0) {
            return idx;
        }
        strings += strlen(strings) + 1; /* skip NUL */
        idx++;
    }
    return -1;
}

/* returns the array index of the string, even if it matches only a beginning */
/* (index of first match is returned, or -1) */
#ifdef UNUSED
int index_in_substr_array(const char *const string_array[], const char *key)
{
    int i;
    int len = strlen(key);
    if (len) {
        for (i = 0; string_array[i] != 0; i++) {
            if (strncmp(string_array[i], key, len) == 0) {
                return i;
            }
        }
    }
    return -1;
}
#endif

int index_in_substrings(const char *strings, const char *key)
{
    int len = strlen(key);

    if (len) {
        int idx = 0;
        while (strings[0]) {
            if (strncmp(strings, key, len) == 0) {
                return idx;
            }
            strings += strlen(strings) + 1; /* skip NUL */
            idx++;
        }
    }
    return -1;
}