Function add_pattern_to_hashsets

dir.c:793–931

}

static void add_pattern_to_hashsets(struct pattern_list *pl, struct path_pattern *given)
{
	struct pattern_entry *translated;
	char *truncated;
	char *data = NULL;
	const char *prev, *cur, *next;

	if (!pl->use_cone_patterns)
		return;

	if (given->flags & PATTERN_FLAG_NEGATIVE &&
	    given->flags & PATTERN_FLAG_MUSTBEDIR &&
	    !strcmp(given->pattern, "/*")) {
		pl->full_cone = 0;
		return;
	}

	if (!given->flags && !strcmp(given->pattern, "/*")) {
		pl->full_cone = 1;
		return;
	}

	if (given->patternlen < 2 ||
	    *given->pattern != '/' ||
	    strstr(given->pattern, "**")) {
		/* Not a cone pattern. */
		warning(_("unrecognized pattern: '%s'"), given->pattern);
		goto clear_hashmaps;
	}

	if (!(given->flags & PATTERN_FLAG_MUSTBEDIR) &&
	    strcmp(given->pattern, "/*")) {
		/* Not a cone pattern. */
		warning(_("unrecognized pattern: '%s'"), given->pattern);
		goto clear_hashmaps;
	}

	prev = given->pattern;
	cur = given->pattern + 1;
	next = given->pattern + 2;

	while (*cur) {
		/* Watch for glob characters '*', '\', '[', '?' */
		if (!is_glob_special(*cur))
			goto increment;

		/* But only if *prev != '\\' */
		if (*prev == '\\')
			goto increment;

		/* But allow the initial '\' */
		if (*cur == '\\' &&
		    is_glob_special(*next))
			goto increment;

		/* But a trailing '/' then '*' is fine */
		if (*prev == '/' &&
		    *cur == '*' &&