[MARK_READ_MAX_LEN] = { "Max mark read length", {"max_mark_read_len", "mark_read"}, },
};
+static bool parse_stat_id(const char *name, size_t len, int *id)
+{
+ int i, j;
+
+ for (i = 0; i < ARRAY_SIZE(stat_defs); i++) {
+ struct stat_def *def = &stat_defs[i];
+
+ for (j = 0; j < ARRAY_SIZE(stat_defs[i].names); j++) {
+
+ if (!def->names[j] ||
+ strlen(def->names[j]) != len ||
+ strncmp(def->names[j], name, len) != 0)
+ continue;
+
+ *id = i;
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static bool is_asc_sym(char c)
+{
+ return c == '^';
+}
+
+static bool is_desc_sym(char c)
+{
+ return c == 'v' || c == 'V' || c == '.' || c == '!' || c == '_';
+}
+
static int parse_stat(const char *stat_name, struct stat_specs *specs)
{
- int id, i;
+ int id;
+ bool has_order = false, is_asc = false;
+ size_t len = strlen(stat_name);
if (specs->spec_cnt >= ARRAY_SIZE(specs->ids)) {
fprintf(stderr, "Can't specify more than %zd stats\n", ARRAY_SIZE(specs->ids));
return -E2BIG;
}
- for (id = 0; id < ARRAY_SIZE(stat_defs); id++) {
- struct stat_def *def = &stat_defs[id];
-
- for (i = 0; i < ARRAY_SIZE(stat_defs[id].names); i++) {
- if (!def->names[i] || strcmp(def->names[i], stat_name) != 0)
- continue;
-
- specs->ids[specs->spec_cnt] = id;
- specs->asc[specs->spec_cnt] = def->asc_by_default;
- specs->spec_cnt++;
+ if (len > 1 && (is_asc_sym(stat_name[len - 1]) || is_desc_sym(stat_name[len - 1]))) {
+ has_order = true;
+ is_asc = is_asc_sym(stat_name[len - 1]);
+ len -= 1;
+ }
- return 0;
- }
+ if (!parse_stat_id(stat_name, len, &id)) {
+ fprintf(stderr, "Unrecognized stat name '%s'\n", stat_name);
+ return -ESRCH;
}
- fprintf(stderr, "Unrecognized stat name '%s'\n", stat_name);
- return -ESRCH;
+ specs->ids[specs->spec_cnt] = id;
+ specs->asc[specs->spec_cnt] = has_order ? is_asc : stat_defs[id].asc_by_default;
+ specs->spec_cnt++;
+
+ return 0;
}
static int parse_stats(const char *stats_str, struct stat_specs *specs)