private static string Format(string str, string schemeName, UriKind uriKind,
UriComponents component, UriFormat uriFormat, FormatFlags formatFlags)
{
if (string.IsNullOrEmpty(str))
{
return("");
}
if (UriHelper.HasCharactersToNormalize(str))
{
formatFlags |= UriHelper.FormatFlags.HasComponentCharactersToNormalize | FormatFlags.HasUriCharactersToNormalize;
}
if (component == UriComponents.Fragment && UriHelper.HasPercentage(str))
{
formatFlags |= UriHelper.FormatFlags.HasFragmentPercentage;
}
if (component == UriComponents.Host &&
str.Length > 1 && str [0] == '[' && str [str.Length - 1] == ']')
{
formatFlags |= UriHelper.FormatFlags.IPv6Host;
}
if (component == UriComponents.Path &&
str.Length >= 2 && str [1] != ':' &&
('a' <= str [0] && str [0] <= 'z') || ('A' <= str [0] && str [0] <= 'Z'))
{
formatFlags |= UriHelper.FormatFlags.HasWindowsPath;
}
UriSchemes scheme = GetScheme(schemeName);
if (scheme == UriSchemes.Custom && (formatFlags & FormatFlags.HasHost) != 0)
{
scheme = UriSchemes.CustomWithHost;
}
var reduceAfter = UriSchemes.Http | UriSchemes.Https | UriSchemes.File | UriSchemes.NetPipe | UriSchemes.NetTcp;
if (IriParsing)
{
reduceAfter |= UriSchemes.Ftp;
}
else if (component == UriComponents.Path &&
(formatFlags & FormatFlags.NoSlashReplace) == 0)
{
if (scheme == UriSchemes.Ftp)
{
str = Reduce(str.Replace('\\', '/'), !IriParsing);
}
if (scheme == UriSchemes.CustomWithHost)
{
str = Reduce(str.Replace('\\', '/'), false);
}
}
str = FormatString(str, scheme, uriKind, component, uriFormat, formatFlags);
if (component == UriComponents.Path &&
(formatFlags & FormatFlags.NoReduce) == 0)
{
if (SchemeContains(scheme, reduceAfter))
{
str = Reduce(str, !IriParsing);
}
if (IriParsing && scheme == UriSchemes.CustomWithHost)
{
str = Reduce(str, false);
}
}
return(str);
}