public static string toQueryString(IList<string[]> pairs,
string delimiter, string encoding)
{
if(encoding==null) {
encoding="utf-8";
}
ITextEncoder encoder=TextEncoding.getEncoder(encoding);
if(encoder==null)
throw new ArgumentException();
StringBuilder builder=new StringBuilder();
bool first=true;
MemoryOutputStream baos=new MemoryOutputStream();
foreach(var pair in pairs){
if(!first){
builder.Append(delimiter==null ? "&" : delimiter);
}
first=false;
if(pair==null || pair.Length<2)
throw new ArgumentException();
baos.reset();
TextEncoding.encodeString(pair[0], baos, encoder, querySerializerError);
appendOutputBytes(builder,baos);
builder.Append('=');
baos.reset();
TextEncoding.encodeString(pair[1], baos, encoder, querySerializerError);
appendOutputBytes(builder,baos);
}
return builder.ToString();
}
