Method SetFilterTerm

src/stringfilter.cpp:29–75

* Set the term to filter on. * @param str Filter term */

 * @param str Filter term
 */
void StringFilter::SetFilterTerm(std::string_view str)
{
	this->word_index.clear();
	this->word_index.shrink_to_fit();
	this->word_matches = 0;

	char32_t state = STATE_WHITESPACE;
	std::string word;
	StringBuilder builder(word);
	auto add_word = [this, &word]() {
		if (!word.empty()) this->word_index.emplace_back(std::move(word), false);
		word.clear();
	};

	for (char32_t c : Utf8View(str)) {
		if (state == STATE_WORD && IsWhitespace(c)) {
			/* Finish word */
			add_word();
			state = STATE_WHITESPACE;
			continue;
		}

		if (state == STATE_WHITESPACE) {
			/* Skip whitespace */
			if (IsWhitespace(c)) continue;
			state = STATE_WORD;
		}

		if (c == STATE_QUOTE1 || c == STATE_QUOTE2) {
			if (state == c) {
				/* Stop quoting */
				state = STATE_WORD;
				continue;
			} else if (state == STATE_WORD) {
				/* Start quoting */
				state = c;
				continue;
			}
		}

		/* Add to word */
		builder.PutUtf8(c);
	}

	/* Add the last word of the string. */
	add_word();
}

/**
 * Reset the matching state to process a new item.