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/* 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 FAST_FUNC 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 FAST_FUNC index_in_strings(const char *strings, const char *key)
{
int idx = 0;
while (*strings) {
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 FAST_FUNC 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 FAST_FUNC index_in_substrings(const char *strings, const char *key)
{
int len = strlen(key);
if (len) {
int idx = 0;
while (*strings) {
if (strncmp(strings, key, len) == 0) {
return idx;
}
strings += strlen(strings) + 1; /* skip NUL */
idx++;
}
}
return -1;
}
const char* FAST_FUNC nth_string(const char *strings, int n)
{
while (n) {
n--;
strings += strlen(strings) + 1;
}
return strings;
}
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