Imported Upstream version 2.1.0

[platform/upstream/git.git] / string-list.c

diff --git a/string-list.c b/string-list.c
index c54b816..db38b62 100644 (file)
--- a/string-list.c
+++ b/string-list.c
@@ -1,16 +1,23 @@
 #include "cache.h"
 #include "string-list.h"
 
+void string_list_init(struct string_list *list, int strdup_strings)
+{
+       memset(list, 0, sizeof(*list));
+       list->strdup_strings = strdup_strings;
+}
+
 /* if there is no exact match, point to the index where the entry could be
  * inserted */
 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 +103,9 @@ 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)
@@ -136,24 +144,13 @@ void filter_string_list(struct string_list *list, int free_util,
        list->nr = dst;
 }
 
-char *string_list_longest_prefix(const struct string_list *prefixes,
-                                const char *string)
+static int item_is_not_empty(struct string_list_item *item, void *unused)
 {
-       int i, max_len = -1;
-       char *retval = NULL;
-
-       for (i = 0; i < prefixes->nr; i++) {
-               char *prefix = prefixes->items[i].string;
-               if (!prefixcmp(string, prefix)) {
-                       int len = strlen(prefix);
-                       if (len > max_len) {
-                               retval = prefix;
-                               max_len = len;
-                       }
-               }
-       }
+       return *item->string != '\0';
+}
 
-       return retval;
+void string_list_remove_empty_items(struct string_list *list, int free_util) {
+       filter_string_list(list, free_util, item_is_not_empty, NULL);
 }
 
 void string_list_clear(struct string_list *list, int free_util)
@@ -221,15 +218,20 @@ 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);
 }
 
@@ -237,8 +239,10 @@ 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;
 }