| #include "cache.h" |
| #include "string-list.h" |
| |
| /* |
| * Parse an argument into a string list. arg should either be a |
| * ':'-separated list of strings, or "-" to indicate an empty string |
| * list (as opposed to "", which indicates a string list containing a |
| * single empty string). list->strdup_strings must be set. |
| */ |
| static void parse_string_list(struct string_list *list, const char *arg) |
| { |
| if (!strcmp(arg, "-")) |
| return; |
| |
| (void)string_list_split(list, arg, ':', -1); |
| } |
| |
| static void write_list(const struct string_list *list) |
| { |
| int i; |
| for (i = 0; i < list->nr; i++) |
| printf("[%d]: \"%s\"\n", i, list->items[i].string); |
| } |
| |
| static void write_list_compact(const struct string_list *list) |
| { |
| int i; |
| if (!list->nr) |
| printf("-\n"); |
| else { |
| printf("%s", list->items[0].string); |
| for (i = 1; i < list->nr; i++) |
| printf(":%s", list->items[i].string); |
| printf("\n"); |
| } |
| } |
| |
| static int prefix_cb(struct string_list_item *item, void *cb_data) |
| { |
| const char *prefix = (const char *)cb_data; |
| return !prefixcmp(item->string, prefix); |
| } |
| |
| int main(int argc, char **argv) |
| { |
| if (argc == 5 && !strcmp(argv[1], "split")) { |
| struct string_list list = STRING_LIST_INIT_DUP; |
| int i; |
| const char *s = argv[2]; |
| int delim = *argv[3]; |
| int maxsplit = atoi(argv[4]); |
| |
| i = string_list_split(&list, s, delim, maxsplit); |
| printf("%d\n", i); |
| write_list(&list); |
| string_list_clear(&list, 0); |
| return 0; |
| } |
| |
| if (argc == 5 && !strcmp(argv[1], "split_in_place")) { |
| struct string_list list = STRING_LIST_INIT_NODUP; |
| int i; |
| char *s = xstrdup(argv[2]); |
| int delim = *argv[3]; |
| int maxsplit = atoi(argv[4]); |
| |
| i = string_list_split_in_place(&list, s, delim, maxsplit); |
| printf("%d\n", i); |
| write_list(&list); |
| string_list_clear(&list, 0); |
| free(s); |
| return 0; |
| } |
| |
| if (argc == 4 && !strcmp(argv[1], "filter")) { |
| /* |
| * Retain only the items that have the specified prefix. |
| * Arguments: list|- prefix |
| */ |
| struct string_list list = STRING_LIST_INIT_DUP; |
| const char *prefix = argv[3]; |
| |
| parse_string_list(&list, argv[2]); |
| filter_string_list(&list, 0, prefix_cb, (void *)prefix); |
| write_list_compact(&list); |
| string_list_clear(&list, 0); |
| return 0; |
| } |
| |
| if (argc == 3 && !strcmp(argv[1], "remove_duplicates")) { |
| struct string_list list = STRING_LIST_INIT_DUP; |
| |
| parse_string_list(&list, argv[2]); |
| string_list_remove_duplicates(&list, 0); |
| write_list_compact(&list); |
| string_list_clear(&list, 0); |
| return 0; |
| } |
| |
| fprintf(stderr, "%s: unknown function name: %s\n", argv[0], |
| argv[1] ? argv[1] : "(there was none)"); |
| return 1; |
| } |