Function isNiceString

src/utils/string.cpp:1007–1016

* @brief Does the provided string seem nice, i.e ratio of printable characters * and escape sequences in the string is at least @p minRatio. * * @param str String to check. * @param minRatio Minimum ratio of printable characters. * * @return @c True if the string seems nice, @c false otherwise. * * Empty string is never nice. */

* Empty string is never nice.
*/
bool isNiceString(const std::string &str, double minRatio) {
	assert(0.0 <= minRatio && minRatio <= 1.0);

	std::string s = str;
	if (!s.empty() && s.back() == '\00')
		s.pop_back();

	auto niceCharCount = std::count_if(s.begin(), s.end(), isNiceCharacter);
	return !s.empty() && (niceCharCount) >= (s.size() * minRatio);
}

/**
 * @return @c True if character @a c is a nice ASCII wide character.