| /* 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; |
| } |
| |
| const char *nth_string(const char *strings, int n) |
| { |
| while (n) { |
| n--; |
| strings += strlen(strings) + 1; |
| } |
| return strings; |
| } |