strvec: rename files from argv-array to strvec

[thirdparty/git.git] / strvec.c

diff --git a/strvec.c b/strvec.c
new file mode 100644 (file)
index 0000000..9e76ab9
--- /dev/null
+++ b/strvec.c
@@ -0,0 +1,109 @@
+#include "cache.h"
+#include "strvec.h"
+#include "strbuf.h"
+
+const char *empty_strvec[] = { NULL };
+
+void strvec_init(struct strvec *array)
+{
+       array->argv = empty_strvec;
+       array->argc = 0;
+       array->alloc = 0;
+}
+
+static void strvec_push_nodup(struct strvec *array, const char *value)
+{
+       if (array->argv == empty_strvec)
+               array->argv = NULL;
+
+       ALLOC_GROW(array->argv, array->argc + 2, array->alloc);
+       array->argv[array->argc++] = value;
+       array->argv[array->argc] = NULL;
+}
+
+const char *strvec_push(struct strvec *array, const char *value)
+{
+       strvec_push_nodup(array, xstrdup(value));
+       return array->argv[array->argc - 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->argv[array->argc - 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 **argv)
+{
+       for (; *argv; argv++)
+               strvec_push(array, *argv);
+}
+
+void strvec_pop(struct strvec *array)
+{
+       if (!array->argc)
+               return;
+       free((char *)array->argv[array->argc - 1]);
+       array->argv[array->argc - 1] = NULL;
+       array->argc--;
+}
+
+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->argv != empty_strvec) {
+               int i;
+               for (i = 0; i < array->argc; i++)
+                       free((char *)array->argv[i]);
+               free(array->argv);
+       }
+       strvec_init(array);
+}
+
+const char **strvec_detach(struct strvec *array)
+{
+       if (array->argv == empty_strvec)
+               return xcalloc(1, sizeof(const char *));
+       else {
+               const char **ret = array->argv;
+               strvec_init(array);
+               return ret;
+       }
+}