Method exists

src/eepp/ui/doc/textrange.cpp:273–277

}

bool TextRanges::exists( const TextRange& range ) const {
	if ( !mIsSorted )
		return std::find( begin(), end(), range ) != end();
	return std::binary_search( begin(), end(), range );
}

size_t TextRanges::findIndex( const TextRange& range ) const {
	if ( !mIsSorted ) {