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chromium / external / github.com / git / git / refs/tags/v2.35.6 / . / strvec.c
blob: 61a76ce6cb920f33744e82111c800da8439ed975 [file] [log] [blame]
Jeff Kingc1189ca2011-09-13 21:57:57[diff] [blame]1#include "cache.h"
Jeff Kingdbbcd442020-07-28 20:23:39[diff] [blame]2#include "strvec.h"
Jeff Kingc1189ca2011-09-13 21:57:57[diff] [blame]3#include "strbuf.h"
4
Jeff King873cd282020-07-28 20:23:25[diff] [blame]5const char *empty_strvec[] = { NULL };
Jeff Kingc1189ca2011-09-13 21:57:57[diff] [blame]6
Jeff King873cd282020-07-28 20:23:25[diff] [blame]7void strvec_init(struct strvec *array)
Jeff Kingc1189ca2011-09-13 21:57:57[diff] [blame]8{
Ævar Arnfjörð Bjarmason5726a6b2021-07-01 10:51:26[diff] [blame]9 struct strvec blank = STRVEC_INIT;
10 memcpy(array, &blank, sizeof(*array));
Jeff Kingc1189ca2011-09-13 21:57:57[diff] [blame]11}
12
Jeff King873cd282020-07-28 20:23:25[diff] [blame]13static void strvec_push_nodup(struct strvec *array, const char *value)
Jeff Kingc1189ca2011-09-13 21:57:57[diff] [blame]14{
Jeff Kingd70a9eb2020-07-29 00:37:20[diff] [blame]15 if (array->v == empty_strvec)
16 array->v = NULL;
Jeff Kingc1189ca2011-09-13 21:57:57[diff] [blame]17
Jeff Kingd70a9eb2020-07-29 00:37:20[diff] [blame]18 ALLOC_GROW(array->v, array->nr + 2, array->alloc);
19 array->v[array->nr++] = value;
20 array->v[array->nr] = NULL;
Jeff Kingc1189ca2011-09-13 21:57:57[diff] [blame]21}
22
Jeff King873cd282020-07-28 20:23:25[diff] [blame]23const char *strvec_push(struct strvec *array, const char *value)
Jeff Kingc1189ca2011-09-13 21:57:57[diff] [blame]24{
Jeff King873cd282020-07-28 20:23:25[diff] [blame]25 strvec_push_nodup(array, xstrdup(value));
Jeff Kingd70a9eb2020-07-29 00:37:20[diff] [blame]26 return array->v[array->nr - 1];
Jeff Kingc1189ca2011-09-13 21:57:57[diff] [blame]27}
28
Jeff King873cd282020-07-28 20:23:25[diff] [blame]29const char *strvec_pushf(struct strvec *array, const char *fmt, ...)
Jeff Kingc1189ca2011-09-13 21:57:57[diff] [blame]30{
31 va_list ap;
32 struct strbuf v = STRBUF_INIT;
33
34 va_start(ap, fmt);
35 strbuf_vaddf(&v, fmt, ap);
36 va_end(ap);
37
Jeff King873cd282020-07-28 20:23:25[diff] [blame]38 strvec_push_nodup(array, strbuf_detach(&v, NULL));
Jeff Kingd70a9eb2020-07-29 00:37:20[diff] [blame]39 return array->v[array->nr - 1];
Jeff Kingc1189ca2011-09-13 21:57:57[diff] [blame]40}
41
Jeff King873cd282020-07-28 20:23:25[diff] [blame]42void strvec_pushl(struct strvec *array, ...)
Jeff Kingd15bbe12012-04-18 21:10:05[diff] [blame]43{
44 va_list ap;
45 const char *arg;
46
47 va_start(ap, array);
Denton Liu828e8292019-11-19 23:55:29[diff] [blame]48 while ((arg = va_arg(ap, const char *)))
Jeff King873cd282020-07-28 20:23:25[diff] [blame]49 strvec_push(array, arg);
Jeff Kingd15bbe12012-04-18 21:10:05[diff] [blame]50 va_end(ap);
51}
52
Jeff Kingd70a9eb2020-07-29 00:37:20[diff] [blame]53void strvec_pushv(struct strvec *array, const char **items)
Paul Tan85b34322015-06-14 08:41:50[diff] [blame]54{
Jeff Kingd70a9eb2020-07-29 00:37:20[diff] [blame]55 for (; *items; items++)
56 strvec_push(array, *items);
Paul Tan85b34322015-06-14 08:41:50[diff] [blame]57}
58
Jeff King873cd282020-07-28 20:23:25[diff] [blame]59void strvec_pop(struct strvec *array)
Jeff Kingfe4a0a22012-09-01 11:25:27[diff] [blame]60{
Jeff Kingd70a9eb2020-07-29 00:37:20[diff] [blame]61 if (!array->nr)
Jeff Kingfe4a0a22012-09-01 11:25:27[diff] [blame]62 return;
Jeff Kingd70a9eb2020-07-29 00:37:20[diff] [blame]63 free((char *)array->v[array->nr - 1]);
64 array->v[array->nr - 1] = NULL;
65 array->nr--;
Jeff Kingfe4a0a22012-09-01 11:25:27[diff] [blame]66}
67
Jeff King873cd282020-07-28 20:23:25[diff] [blame]68void strvec_split(struct strvec *array, const char *to_split)
Johannes Schindelinc5aa6db2018-04-25 09:53:57[diff] [blame]69{
70 while (isspace(*to_split))
71 to_split++;
72 for (;;) {
73 const char *p = to_split;
74
75 if (!*p)
76 break;
77
78 while (*p && !isspace(*p))
79 p++;
Jeff King873cd282020-07-28 20:23:25[diff] [blame]80 strvec_push_nodup(array, xstrndup(to_split, p - to_split));
Johannes Schindelinc5aa6db2018-04-25 09:53:57[diff] [blame]81
82 while (isspace(*p))
83 p++;
84 to_split = p;
85 }
86}
87
Jeff King873cd282020-07-28 20:23:25[diff] [blame]88void strvec_clear(struct strvec *array)
Jeff Kingc1189ca2011-09-13 21:57:57[diff] [blame]89{
Jeff Kingd70a9eb2020-07-29 00:37:20[diff] [blame]90 if (array->v != empty_strvec) {
Jeff Kingc1189ca2011-09-13 21:57:57[diff] [blame]91 int i;
Jeff Kingd70a9eb2020-07-29 00:37:20[diff] [blame]92 for (i = 0; i < array->nr; i++)
93 free((char *)array->v[i]);
94 free(array->v);
Jeff Kingc1189ca2011-09-13 21:57:57[diff] [blame]95 }
Jeff King873cd282020-07-28 20:23:25[diff] [blame]96 strvec_init(array);
Jeff Kingc1189ca2011-09-13 21:57:57[diff] [blame]97}
Jeff Kingb9926572016-02-22 22:44:15[diff] [blame]98
Jeff King873cd282020-07-28 20:23:25[diff] [blame]99const char **strvec_detach(struct strvec *array)
Jeff Kingb9926572016-02-22 22:44:15[diff] [blame]100{
Jeff Kingd70a9eb2020-07-29 00:37:20[diff] [blame]101 if (array->v == empty_strvec)
Jeff Kingb9926572016-02-22 22:44:15[diff] [blame]102 return xcalloc(1, sizeof(const char *));
103 else {
Jeff Kingd70a9eb2020-07-29 00:37:20[diff] [blame]104 const char **ret = array->v;
Jeff King873cd282020-07-28 20:23:25[diff] [blame]105 strvec_init(array);
Jeff Kingb9926572016-02-22 22:44:15[diff] [blame]106 return ret;
107 }
108}