ぐぬぬ

urlEncode

#import("dart:utf",prefix:"utf");

class Url {
  static String encodeUtf8( final String src ) => _encode( src, (s)=>utf.encodeUtf8(s) );

  static String _encode( final String rawSrc, List f(final String) )
    => new String.fromCharCodes( ( final List src, List dst ) {
          src.forEach(
            (c) =>
              dst.addAll(
                ( ( c >= 65/*'A'*/ && c <= 90/*'Z'*/ ) || ( c >= 97/*'a'*/ && c <= 122/*'z'*/ ) || ( c >= 48/*'0'*/ && c <= 57/*'9'*/ ) || c == 45/*'-'*/ || c == 95/*'_'*/ || c == 46/*'.'*/ || c == 126/*'~'*/ )
                ? [c]
                : [ 37/*%*/, c.toRadixString(16).charCodes()[0], c.toRadixString(16).charCodes()[1] ]
                )
              );
          return dst;
        }( f( rawSrc ), new List() )
      );
}