diff options
Diffstat (limited to 'strvec.c')
-rw-r--r-- | strvec.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/strvec.c b/strvec.c new file mode 100644 index 0000000..178f4f3 --- /dev/null +++ b/strvec.c @@ -0,0 +1,108 @@ +#include "git-compat-util.h" +#include "strvec.h" +#include "strbuf.h" + +const char *empty_strvec[] = { NULL }; + +void strvec_init(struct strvec *array) +{ + struct strvec blank = STRVEC_INIT; + memcpy(array, &blank, sizeof(*array)); +} + +static void strvec_push_nodup(struct strvec *array, const char *value) +{ + if (array->v == empty_strvec) + array->v = NULL; + + ALLOC_GROW(array->v, array->nr + 2, array->alloc); + array->v[array->nr++] = value; + array->v[array->nr] = NULL; +} + +const char *strvec_push(struct strvec *array, const char *value) +{ + strvec_push_nodup(array, xstrdup(value)); + return array->v[array->nr - 1]; +} + +const char *strvec_pushf(struct strvec *array, const char *fmt, ...) +{ + va_list ap; + struct strbuf v = STRBUF_INIT; + + va_start(ap, fmt); + strbuf_vaddf(&v, fmt, ap); + va_end(ap); + + strvec_push_nodup(array, strbuf_detach(&v, NULL)); + return array->v[array->nr - 1]; +} + +void strvec_pushl(struct strvec *array, ...) +{ + va_list ap; + const char *arg; + + va_start(ap, array); + while ((arg = va_arg(ap, const char *))) + strvec_push(array, arg); + va_end(ap); +} + +void strvec_pushv(struct strvec *array, const char **items) +{ + for (; *items; items++) + strvec_push(array, *items); +} + +void strvec_pop(struct strvec *array) +{ + if (!array->nr) + return; + free((char *)array->v[array->nr - 1]); + array->v[array->nr - 1] = NULL; + array->nr--; +} + +void strvec_split(struct strvec *array, const char *to_split) +{ + while (isspace(*to_split)) + to_split++; + for (;;) { + const char *p = to_split; + + if (!*p) + break; + + while (*p && !isspace(*p)) + p++; + strvec_push_nodup(array, xstrndup(to_split, p - to_split)); + + while (isspace(*p)) + p++; + to_split = p; + } +} + +void strvec_clear(struct strvec *array) +{ + if (array->v != empty_strvec) { + int i; + for (i = 0; i < array->nr; i++) + free((char *)array->v[i]); + free(array->v); + } + strvec_init(array); +} + +const char **strvec_detach(struct strvec *array) +{ + if (array->v == empty_strvec) + return xcalloc(1, sizeof(const char *)); + else { + const char **ret = array->v; + strvec_init(array); + return ret; + } +} |