question: @ SuppressWarnings ( "fallthrough" ) private String nextLiteral ( boolean assignOffsetsOnly ) throws IOException { StringBuilder builder = null ; valuePos = - 1 ; valueLength = 0 ; int i = 0 ; findNonLiteralCharacter : while ( true ) { for ( ; pos + i < limit ; i ++ ) { switch ( buffer [ pos + i ] ) { case '/' : case '\\' : case ';' : case '#' : case '=' : checkLenient ( ) ; case '{' : case '}' : case '[' : case ']' : case ':' : case ',' : case ' ' : case '\t' : case '\f' : case '\r' : case '\n' : break findNonLiteralCharacter ; } } if ( i < buffer . length ) { if ( fillBuffer ( i + 1 ) ) { continue ; } else { buffer [ limit ] = '\0' ; break ; } } if ( builder == null ) { builder = new StringBuilder ( ) ; } builder . append ( buffer , pos , i ) ; valueLength += i ; pos += i ; i = 0 ; if ( ! fillBuffer ( 1 ) ) { break ; } } String result ; if ( assignOffsetsOnly && builder == null ) { valuePos = pos ; result = null ; } else if ( skipping ) { result = "skipped!" ; } else if ( builder == null ) { result = stringPool . get ( buffer , pos , i ) ; } else { builder . append ( buffer , pos , i ) ; result = builder . toString ( ) ; } valueLength += i ; pos += i ; return result ; }
target:  Reads the value up to but not including any delimiter characters. This does not consume the delimiter character.