public String encoding ( ) { if ( _readEncoding != null ) return _readEncoding ; CharSegment value = getHeaderBuffer ( "Content-Type" ) ; if ( value == null ) return null ; int i = value . indexOf ( "charset" ) ; if ( i < 0 ) return null ; int len = value . length ( ) ; for ( i += 7 ; i < len && Character . isWhitespace ( value . charAt ( i ) ) ; i ++ ) { } if ( i >= len || value . charAt ( i ) != ' ' ) return null ; for ( i ++ ; i < len && Character . isWhitespace ( value . charAt ( i ) ) ; i ++ ) { } if ( i >= len ) return null ; char end = value . charAt ( i ) ; if ( end == ' ' ) { int tail ; for ( tail = ++ i ; tail < len ; tail ++ ) { if ( value . charAt ( tail ) == end ) break ; } _readEncoding = Encoding . getMimeName ( value . substring ( i , tail ) ) ; return _readEncoding ; } int tail ; for ( tail = i ; tail < len ; tail ++ ) { if ( Character . isWhitespace ( value . charAt ( tail ) ) || value . charAt ( tail ) == ' ' ) break ; } _readEncoding = Encoding . getMimeName ( value . substring ( i , tail ) ) ; return _readEncoding ; }
Returns the character encoding of a post .