--- !ruby/object:RI::MethodDescription aliases: [] block_params: comment: - !ruby/struct:SM::Flow::P body: Returns whether input encoding is UTF-8 or not. - !ruby/struct:SM::Flow::P body: <b>Note</b> don't expect this return value is MatchData. full_name: Kconv#isutf8 is_singleton: false name: isutf8 params: | Kconv.isutf8(str) -> obj or nil visibility: public