//////////////////////////////////////////////////////////////////////////
// Plus
//////////////////////////////////////////////////////////////////////////
public Uri plus(Uri r)
{
// if r is more or equal as absolute as base, return r
if (r.m_scheme != null) return r;
if (r.m_host != null && this.m_scheme == null) return r;
if (r.isPathAbs() && this.m_host == null) return r;
// this algorthm is lifted straight from
// RFC 3986 (5.2.2) Transform References;
Uri baseUri = this;
Sections t = new Sections();
if (r.m_host != null)
{
t.setAuth(r);
t.setPath(r);
t.setQuery(r);
}
else
{
if (r.m_pathStr == null || r.m_pathStr == "")
{
t.setPath(baseUri);
if (r.m_queryStr != null)
t.setQuery(r);
else
t.setQuery(baseUri);
}
else
{
if (r.m_pathStr.StartsWith("/"))
t.setPath(r);
else
merge(t, baseUri, r);
t.setQuery(r);
}
t.setAuth(baseUri);
}
t.scheme = baseUri.m_scheme;
t.frag = r.m_frag;
t.normalize();
return new Uri(t);
}