Function MakeAnchorSlug

src/textfile_gui.cpp:185–217

* Create a valid slug for the anchor. * * @param line The line to create the slug for. * @return std::string The slug. */

 * @return std::string The slug.
 */
static std::string MakeAnchorSlug(const std::string &line)
{
	std::string r = "#";
	uint state = 0;
	for (char c : line) {
		if (state == 0) {
			/* State 0: Skip leading hashmarks and spaces. */
			if (c == '#') continue;
			if (c == ' ') continue;
			state = 1;
		}
		if (state == 2) {
			/* State 2: Wait for a non-space/dash character.
			 * When found, output a dash and that character. */
			if (c == ' ' || c == '-') continue;
			r += '-';
			state = 1;
		}
		if (state == 1) {
			/* State 1: Normal text.
			 * Lowercase alphanumerics,
			 * spaces and dashes become dashes,
			 * everything else is removed. */
			if (isalnum(c)) {
				r += tolower(c);
			} else if (c == ' ' || c == '-') {
				state = 2;
			}
		}
	}

	return r;
}

/**
 * Find any hyperlinks in a given line.