diff options
| -rw-r--r-- | string-list.c | 17 | ||||
| -rw-r--r-- | string-list.h | 4 |
2 files changed, 17 insertions, 4 deletions
diff --git a/string-list.c b/string-list.c index 397e6cfa7d..6f3d8cf091 100644 --- a/string-list.c +++ b/string-list.c @@ -7,10 +7,11 @@ static int get_entry_index(const struct string_list *list, const char *string, int *exact_match) { int left = -1, right = list->nr; + compare_strings_fn cmp = list->cmp ? list->cmp : strcmp; while (left + 1 < right) { int middle = (left + right) / 2; - int compare = strcmp(string, list->items[middle].string); + int compare = cmp(string, list->items[middle].string); if (compare < 0) right = middle; else if (compare > 0) @@ -96,8 +97,9 @@ void string_list_remove_duplicates(struct string_list *list, int free_util) { if (list->nr > 1) { int src, dst; + compare_strings_fn cmp = list->cmp ? list->cmp : strcmp; for (src = dst = 1; src < list->nr; src++) { - if (!strcmp(list->items[dst - 1].string, list->items[src].string)) { + if (!cmp(list->items[dst - 1].string, list->items[src].string)) { if (list->strdup_strings) free(list->items[src].string); if (free_util) @@ -230,15 +232,20 @@ struct string_list_item *string_list_append(struct string_list *list, list->strdup_strings ? xstrdup(string) : (char *)string); } +/* Yuck */ +static compare_strings_fn compare_for_qsort; + +/* Only call this from inside sort_string_list! */ static int cmp_items(const void *a, const void *b) { const struct string_list_item *one = a; const struct string_list_item *two = b; - return strcmp(one->string, two->string); + return compare_for_qsort(one->string, two->string); } void sort_string_list(struct string_list *list) { + compare_for_qsort = list->cmp ? list->cmp : strcmp; qsort(list->items, list->nr, sizeof(*list->items), cmp_items); } @@ -246,8 +253,10 @@ struct string_list_item *unsorted_string_list_lookup(struct string_list *list, const char *string) { int i; + compare_strings_fn cmp = list->cmp ? list->cmp : strcmp; + for (i = 0; i < list->nr; i++) - if (!strcmp(string, list->items[i].string)) + if (!cmp(string, list->items[i].string)) return list->items + i; return NULL; } diff --git a/string-list.h b/string-list.h index c50b0d0dea..446e79e425 100644 --- a/string-list.h +++ b/string-list.h @@ -5,10 +5,14 @@ struct string_list_item { char *string; void *util; }; + +typedef int (*compare_strings_fn)(const char *, const char *); + struct string_list { struct string_list_item *items; unsigned int nr, alloc; unsigned int strdup_strings:1; + compare_strings_fn cmp; /* NULL uses strcmp() */ }; #define STRING_LIST_INIT_NODUP { NULL, 0, 0, 0 } |