question: protected void addPrefixMatch ( StringBuilder sb , String surface , String analyzed , String prefixToken ) { if ( prefixToken . length ( ) >= surface . length ( ) ) { addWholeMatch ( sb , surface , analyzed ) ; return ; } sb . append ( "<b>" ) ; sb . append ( surface . substring ( 0 , prefixToken . length ( ) ) ) ; sb . append ( "</b>" ) ; sb . append ( surface . substring ( prefixToken . length ( ) ) ) ; }
target:  Called while highlighting a single result, to append a matched prefix token, to the provided fragments list.