2 #include "string-list.h"
4 /* if there is no exact match, point to the index where the entry could be
6 static int get_entry_index(const struct string_list *list, const char *string,
9 int left = -1, right = list->nr;
11 while (left + 1 < right) {
12 int middle = (left + right) / 2;
13 int compare = strcmp(string, list->items[middle].string);
28 /* returns -1-index if already exists */
29 static int add_entry(int insert_at, struct string_list *list, const char *string)
32 int index = insert_at != -1 ? insert_at : get_entry_index(list, string, &exact_match);
37 if (list->nr + 1 >= list->alloc) {
39 list->items = xrealloc(list->items, list->alloc
40 * sizeof(struct string_list_item));
43 memmove(list->items + index + 1, list->items + index,
45 * sizeof(struct string_list_item));
46 list->items[index].string = list->strdup_strings ?
47 xstrdup(string) : (char *)string;
48 list->items[index].util = NULL;
54 struct string_list_item *string_list_insert(const char *string, struct string_list *list)
56 return string_list_insert_at_index(-1, string, list);
59 struct string_list_item *string_list_insert_at_index(int insert_at,
60 const char *string, struct string_list *list)
62 int index = add_entry(insert_at, list, string);
67 return list->items + index;
70 int string_list_has_string(const struct string_list *list, const char *string)
73 get_entry_index(list, string, &exact_match);
77 int string_list_find_insert_index(const struct string_list *list, const char *string,
78 int negative_existing_index)
81 int index = get_entry_index(list, string, &exact_match);
83 index = -1 - (negative_existing_index ? index : 0);
87 struct string_list_item *string_list_lookup(const char *string, struct string_list *list)
89 int exact_match, i = get_entry_index(list, string, &exact_match);
92 return list->items + i;
95 int for_each_string_list(string_list_each_func_t fn,
96 struct string_list *list, void *cb_data)
99 for (i = 0; i < list->nr; i++)
100 if ((ret = fn(&list->items[i], cb_data)))
105 void string_list_clear(struct string_list *list, int free_util)
109 if (list->strdup_strings) {
110 for (i = 0; i < list->nr; i++)
111 free(list->items[i].string);
114 for (i = 0; i < list->nr; i++)
115 free(list->items[i].util);
120 list->nr = list->alloc = 0;
123 void string_list_clear_func(struct string_list *list, string_list_clear_func_t clearfunc)
128 for (i = 0; i < list->nr; i++)
129 clearfunc(list->items[i].util, list->items[i].string);
131 if (list->strdup_strings) {
132 for (i = 0; i < list->nr; i++)
133 free(list->items[i].string);
138 list->nr = list->alloc = 0;
142 void print_string_list(const char *text, const struct string_list *p)
146 printf("%s\n", text);
147 for (i = 0; i < p->nr; i++)
148 printf("%s:%p\n", p->items[i].string, p->items[i].util);
151 struct string_list_item *string_list_append(const char *string, struct string_list *list)
153 ALLOC_GROW(list->items, list->nr + 1, list->alloc);
154 list->items[list->nr].string =
155 list->strdup_strings ? xstrdup(string) : (char *)string;
156 return list->items + list->nr++;
159 static int cmp_items(const void *a, const void *b)
161 const struct string_list_item *one = a;
162 const struct string_list_item *two = b;
163 return strcmp(one->string, two->string);
166 void sort_string_list(struct string_list *list)
168 qsort(list->items, list->nr, sizeof(*list->items), cmp_items);
171 struct string_list_item *unsorted_string_list_lookup(struct string_list *list,
175 for (i = 0; i < list->nr; i++)
176 if (!strcmp(string, list->items[i].string))
177 return list->items + i;
181 int unsorted_string_list_has_string(struct string_list *list,
184 return unsorted_string_list_lookup(list, string) != NULL;