VariableKeywordMatcherIn1 (nuget): VariableKeywordMatcherIn1 is a C# library offering several string-keyword matchers(English + PinYin), they allow you match keyword by Initials\Chinese PinYin\Japanese Romaji(plug-in needed)... You can get the keyword hit position that allow you to highlight the matched words.
Keywords: Keyword|matcher|highlight|PinYin