Function containsCaseInsensitive

src/utils/string.cpp:335–348

* @brief Find out if string contains another string, no matter the case. * * @param str String to search in. * @param sub String to search for. * * @return @c true if string contains another string, @c false otherwise. */

* @return @c true if string contains another string, @c false otherwise.
*/
bool containsCaseInsensitive(const std::string &str, const std::string &sub) {
	if (sub.empty()) {
		return true;
	}

	auto it = std::search(
		str.begin(), str.end(),
		sub.begin(), sub.end(),
		[](unsigned char ch1, unsigned char ch2) {
			return std::tolower(ch1) == std::tolower(ch2);
		}
	);
	return (it != str.end());
}

/**
* @brief Returns @c true if @a str contains at least one character from