question: @ Override public void print ( char c ) throws IOException { boolean isWS = Character . isWhitespace ( c ) ; if ( isWS ) { if ( isFirstChar ) return ; if ( c == CHAR_RETURN ) return ; if ( sb . length ( ) > 0 ) { printBuffer ( ) ; lastChar = ( c == CHAR_NL ) ? CHAR_NL : c ; super . print ( lastChar ) ; return ; } } isFirstChar = false ; if ( c == CHAR_GT && sb . length ( ) > 0 ) printBuffer ( ) ; if ( isWS || ! addToBuffer ( c ) ) { if ( depthSum == 0 ) { if ( isWS ) { if ( lastChar == CHAR_NL ) return ; if ( c != CHAR_NL ) { if ( Character . isWhitespace ( lastChar ) ) return ; } } } lastChar = c ; super . print ( c ) ; } }
target:  sends a character to output stream if it is not a consecutive white-space unless we're inside a PRE or TEXTAREA tag.