question: parse a string concode_field_sep ColorConverter instance concode_elem_sep String usageText concode_field_sep RGB parseRGB concode_elem_sep RGB parseHtml concode_elem_sep int parseNumber concode_elem_sep ColorConverter getInstance concode_elem_sep Object convert
target: RGB function ( String arg0 ) { if ( arg0 . length ( ) <= 1 ) { throw new IllegalArgumentException ( usageText ) ; } if ( arg0 . charAt ( 0 ) == '#' ) { return parseHtml ( arg0 ) ; } else if ( arg0 . indexOf ( ',' ) != - 1 ) { return parseRGB ( arg0 ) ; } else { throw new IllegalArgumentException ( usageText ) ; } }