if ( attributeType.getSyntaxLength() > 0 ) buf.append( '{' ).append( attributeType.getSyntaxLength() ).append( '}' );
if ( at.getSyntaxLength() > 0 ) buf.append( "{" ).append( at.getSyntaxLength() ).append( "}" );
if ( at0.getSyntaxLength() != at1.getSyntaxLength() )