Function parse_attr_line

attr.c:321–410

}

struct match_attr *parse_attr_line(const char *line, const char *src,
				   int lineno, unsigned flags)
{
	size_t namelen, num_attr, i;
	const char *cp, *name, *states;
	struct match_attr *res = NULL;
	int is_macro;
	struct strbuf pattern = STRBUF_INIT;

	cp = line + strspn(line, blank);
	if (!*cp || *cp == '#')
		return NULL;
	name = cp;

	if (strlen(line) >= ATTR_MAX_LINE_LENGTH) {
		warning(_("ignoring overly long attributes line %d"), lineno);
		return NULL;
	}

	if (*cp == '"' && !unquote_c_style(&pattern, name, &states)) {
		name = pattern.buf;
		namelen = pattern.len;
	} else {
		namelen = strcspn(name, blank);
		states = name + namelen;
	}

	if (strlen(ATTRIBUTE_MACRO_PREFIX) < namelen &&
	    starts_with(name, ATTRIBUTE_MACRO_PREFIX)) {
		if (!(flags & READ_ATTR_MACRO_OK)) {
			fprintf_ln(stderr, _("%s not allowed: %s:%d"),
				   name, src, lineno);
			goto fail_return;
		}
		is_macro = 1;
		name += strlen(ATTRIBUTE_MACRO_PREFIX);
		name += strspn(name, blank);
		namelen = strcspn(name, blank);
		if (!attr_name_valid(name, namelen) || attr_name_reserved(name)) {
			report_invalid_attr(name, namelen, src, lineno);
			goto fail_return;
		}
	}
	else
		is_macro = 0;

	states += strspn(states, blank);

	/* First pass to count the attr_states */
	for (cp = states, num_attr = 0; *cp; num_attr++) {
		cp = parse_attr(src, lineno, cp, NULL);
		if (!cp)
			goto fail_return;
	}

	res = xcalloc(1, st_add3(sizeof(*res),
				 st_mult(sizeof(struct attr_state), num_attr),
				 is_macro ? 0 : namelen + 1));