Merge branch 'esr/maint-doc-fast-import'
[git.git] / test-string-list.c
blob4693295a98ca713fa65eb9b67d50113ec97ecf71
1 #include "cache.h"
2 #include "string-list.h"
4 /*
5 * Parse an argument into a string list. arg should either be a
6 * ':'-separated list of strings, or "-" to indicate an empty string
7 * list (as opposed to "", which indicates a string list containing a
8 * single empty string). list->strdup_strings must be set.
9 */
10 static void parse_string_list(struct string_list *list, const char *arg)
12 if (!strcmp(arg, "-"))
13 return;
15 (void)string_list_split(list, arg, ':', -1);
18 static void write_list(const struct string_list *list)
20 int i;
21 for (i = 0; i < list->nr; i++)
22 printf("[%d]: \"%s\"\n", i, list->items[i].string);
25 static void write_list_compact(const struct string_list *list)
27 int i;
28 if (!list->nr)
29 printf("-\n");
30 else {
31 printf("%s", list->items[0].string);
32 for (i = 1; i < list->nr; i++)
33 printf(":%s", list->items[i].string);
34 printf("\n");
38 static int prefix_cb(struct string_list_item *item, void *cb_data)
40 const char *prefix = (const char *)cb_data;
41 return !prefixcmp(item->string, prefix);
44 int main(int argc, char **argv)
46 if (argc == 5 && !strcmp(argv[1], "split")) {
47 struct string_list list = STRING_LIST_INIT_DUP;
48 int i;
49 const char *s = argv[2];
50 int delim = *argv[3];
51 int maxsplit = atoi(argv[4]);
53 i = string_list_split(&list, s, delim, maxsplit);
54 printf("%d\n", i);
55 write_list(&list);
56 string_list_clear(&list, 0);
57 return 0;
60 if (argc == 5 && !strcmp(argv[1], "split_in_place")) {
61 struct string_list list = STRING_LIST_INIT_NODUP;
62 int i;
63 char *s = xstrdup(argv[2]);
64 int delim = *argv[3];
65 int maxsplit = atoi(argv[4]);
67 i = string_list_split_in_place(&list, s, delim, maxsplit);
68 printf("%d\n", i);
69 write_list(&list);
70 string_list_clear(&list, 0);
71 free(s);
72 return 0;
75 if (argc == 4 && !strcmp(argv[1], "filter")) {
77 * Retain only the items that have the specified prefix.
78 * Arguments: list|- prefix
80 struct string_list list = STRING_LIST_INIT_DUP;
81 const char *prefix = argv[3];
83 parse_string_list(&list, argv[2]);
84 filter_string_list(&list, 0, prefix_cb, (void *)prefix);
85 write_list_compact(&list);
86 string_list_clear(&list, 0);
87 return 0;
90 if (argc == 3 && !strcmp(argv[1], "remove_duplicates")) {
91 struct string_list list = STRING_LIST_INIT_DUP;
93 parse_string_list(&list, argv[2]);
94 string_list_remove_duplicates(&list, 0);
95 write_list_compact(&list);
96 string_list_clear(&list, 0);
97 return 0;
100 if (argc == 4 && !strcmp(argv[1], "longest_prefix")) {
101 /* arguments: <colon-separated-prefixes>|- <string> */
102 struct string_list prefixes = STRING_LIST_INIT_DUP;
103 int retval;
104 const char *prefix_string = argv[2];
105 const char *string = argv[3];
106 const char *match;
108 parse_string_list(&prefixes, prefix_string);
109 match = string_list_longest_prefix(&prefixes, string);
110 if (match) {
111 printf("%s\n", match);
112 retval = 0;
114 else
115 retval = 1;
116 string_list_clear(&prefixes, 0);
117 return retval;
120 fprintf(stderr, "%s: unknown function name: %s\n", argv[0],
121 argv[1] ? argv[1] : "(there was none)");
122 return 1;