Update draft release notes to 1.8.0

[git.git] / test-string-list.c

diff --git a/test-string-list.c b/test-string-list.c
index cdc3cf3a7fd92a659c5fe503ef0aef0b6e006f3a..4693295a98ca713fa65eb9b67d50113ec97ecf71 100644 (file)
--- a/test-string-list.c
+++ b/test-string-list.c
@@ -1,13 +1,46 @@
 #include "cache.h"
 #include "string-list.h"
 
-void write_list(const struct string_list *list)
+/*
+ * 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")) {
@@ -39,6 +72,51 @@ int main(int argc, char **argv)
                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;
+       }
+
+       if (argc == 4 && !strcmp(argv[1], "longest_prefix")) {
+               /* arguments: <colon-separated-prefixes>|- <string> */
+               struct string_list prefixes = STRING_LIST_INIT_DUP;
+               int retval;
+               const char *prefix_string = argv[2];
+               const char *string = argv[3];
+               const char *match;
+
+               parse_string_list(&prefixes, prefix_string);
+               match = string_list_longest_prefix(&prefixes, string);
+               if (match) {
+                       printf("%s\n", match);
+                       retval = 0;
+               }
+               else
+                       retval = 1;
+               string_list_clear(&prefixes, 0);
+               return retval;
+       }
+
        fprintf(stderr, "%s: unknown function name: %s\n", argv[0],
                argv[1] ? argv[1] : "(there was none)");
        return 1;