final String _readValue_() throws IOException, IllegalArgumentException {
		final Reader source = this._reader_;
		final StringBuilder result = this._builder_;
		result.setLength(0);
		while (true) {
			int symbol = source.read();
			switch (symbol) {
				case -1:
				case '\r':
				case '\n':
					return result.toString();
				case '\\':
					symbol = this._readSymbol_(source.read());
			}
			result.append((char)symbol);
		}
	}