private unsafe string GetRelativeSerializationString(UriFormat format)
{
if (format == UriFormat.UriEscaped)
{
return(UriHelper.EscapeString(_string, checkExistingEscaped: true, UriHelper.UnreservedReservedTable));
}
else if (format == UriFormat.Unescaped)
{
return(UnescapeDataString(_string));
}
else if (format == UriFormat.SafeUnescaped)
{
if (_string.Length == 0)
{
return(string.Empty);
}
char[] dest = new char[_string.Length];
int position = 0;
dest = UriHelper.UnescapeString(_string, 0, _string.Length, dest, ref position, c_DummyChar,
c_DummyChar, c_DummyChar, UnescapeMode.EscapeUnescape, null, false);
return(new string(dest, 0, position));
}
else
{
throw new ArgumentOutOfRangeException(nameof(format));
}
}
public static string UnescapeDataString(string stringToUnescape)
{
if (stringToUnescape is null)
{
throw new ArgumentNullException(nameof(stringToUnescape));
}
if (stringToUnescape.Length == 0)
{
return(string.Empty);
}
int position = stringToUnescape.IndexOf('%');
if (position == -1)
{
return(stringToUnescape);
}
var vsb = new ValueStringBuilder(stackalloc char[256]);
vsb.EnsureCapacity(stringToUnescape.Length);
vsb.Append(stringToUnescape.AsSpan(0, position));
UriHelper.UnescapeString(
stringToUnescape, position, stringToUnescape.Length, ref vsb,
c_DummyChar, c_DummyChar, c_DummyChar,
UnescapeMode.Unescape | UnescapeMode.UnescapeAll,
syntax: null, isQuery: false);
return(vsb.ToString());
}
private unsafe string GetRelativeSerializationString(UriFormat format)
{
if (format == UriFormat.UriEscaped)
{
return(UriHelper.EscapeString(_string, checkExistingEscaped: true, UriHelper.UnreservedReservedTable));
}
else if (format == UriFormat.Unescaped)
{
return(UnescapeDataString(_string));
}
else if (format == UriFormat.SafeUnescaped)
{
if (_string.Length == 0)
{
return(string.Empty);
}
var vsb = new ValueStringBuilder(stackalloc char[StackallocThreshold]);
UriHelper.UnescapeString(_string, ref vsb, c_DummyChar, c_DummyChar, c_DummyChar, UnescapeMode.EscapeUnescape, null, false);
return(vsb.ToString());
}
else
{
throw new ArgumentOutOfRangeException(nameof(format));
}
}
public static string UnescapeDataString(string stringToUnescape)
{
if ((object)stringToUnescape == null)
{
throw new ArgumentNullException(nameof(stringToUnescape));
}
if (stringToUnescape.Length == 0)
{
return(string.Empty);
}
unsafe
{
fixed(char *pStr = stringToUnescape)
{
int position;
for (position = 0; position < stringToUnescape.Length; ++position)
{
if (pStr[position] == '%')
{
break;
}
}
if (position == stringToUnescape.Length)
{
return(stringToUnescape);
}
UnescapeMode unescapeMode = UnescapeMode.Unescape | UnescapeMode.UnescapeAll;
position = 0;
ValueStringBuilder vsb = new ValueStringBuilder(stringToUnescape.Length);
UriHelper.UnescapeString(stringToUnescape, 0, stringToUnescape.Length, ref vsb, ref position,
c_DummyChar, c_DummyChar, c_DummyChar, unescapeMode, null, false);
ReadOnlySpan <char> resultSpan = vsb.AsSpan(0, position);
string result = resultSpan.SequenceEqual(stringToUnescape) ? stringToUnescape : resultSpan.ToString();
vsb.Dispose();
return(result);
}
}
}
private unsafe string GetRelativeSerializationString(UriFormat format)
{
if (format == UriFormat.UriEscaped)
{
if (_string.Length == 0)
{
return(string.Empty);
}
int position = 0;
char[] dest = UriHelper.EscapeString(_string, 0, _string.Length, null, ref position, true,
c_DummyChar, c_DummyChar, '%');
if ((object)dest == null)
{
return(_string);
}
return(new string(dest, 0, position));
}
else if (format == UriFormat.Unescaped)
{
return(UnescapeDataString(_string));
}
else if (format == UriFormat.SafeUnescaped)
{
if (_string.Length == 0)
{
return(string.Empty);
}
char[] dest = new char[_string.Length];
int position = 0;
dest = UriHelper.UnescapeString(_string, 0, _string.Length, dest, ref position, c_DummyChar,
c_DummyChar, c_DummyChar, UnescapeMode.EscapeUnescape, null, false);
return(new string(dest, 0, position));
}
else
{
throw new ArgumentOutOfRangeException("format");
}
}
public static string UnescapeDataString(string stringToUnescape)
{
if ((object)stringToUnescape == null)
{
throw new ArgumentNullException("stringToUnescape");
}
if (stringToUnescape.Length == 0)
{
return(string.Empty);
}
unsafe
{
fixed(char *pStr = stringToUnescape)
{
int position;
for (position = 0; position < stringToUnescape.Length; ++position)
{
if (pStr[position] == '%')
{
break;
}
}
if (position == stringToUnescape.Length)
{
return(stringToUnescape);
}
UnescapeMode unescapeMode = UnescapeMode.Unescape | UnescapeMode.UnescapeAll;
position = 0;
char[] dest = new char[stringToUnescape.Length];
dest = UriHelper.UnescapeString(stringToUnescape, 0, stringToUnescape.Length, dest, ref position,
c_DummyChar, c_DummyChar, c_DummyChar, unescapeMode, null, false);
return(new string(dest, 0, position));
}
}
}
//
// Unescapes entire string and checks if it has unicode chars
//
private bool CheckForUnicode(string data)
{
bool hasUnicode = false;
char[] chars = new char[data.Length];
int count = 0;
chars = UriHelper.UnescapeString(data, 0, data.Length, chars, ref count, c_DummyChar, c_DummyChar,
c_DummyChar, UnescapeMode.Unescape | UnescapeMode.UnescapeAll, null, false);
for (int i = 0; i < count; ++i)
{
if (chars[i] > '\x7f')
{
// Unicode
hasUnicode = true;
break;
}
}
return(hasUnicode);
}