/// <summary>
/// Encodes according to the CSS encoding rules.
/// </summary>
/// <param name="input">The string to encode.</param>
/// <returns>The encoded string.</returns>
internal static string Encode(string input)
{
if (string.IsNullOrEmpty(input))
{
return(input);
}
char[][] value = characterValuesLazy.Value;
StringBuilder outputStringBuilder = EncoderUtil.GetOutputStringBuilder(input.Length, 7);
Utf16StringReader utf16StringReader = new Utf16StringReader(input);
while (true)
{
int num = utf16StringReader.ReadNextScalarValue();
if (num < 0)
{
break;
}
if (num >= value.Length)
{
char[] value2 = SafeList.SlashThenSixDigitHexValueGenerator(num);
outputStringBuilder.Append(value2);
}
else if (value[num] != null)
{
char[] value3 = value[num];
outputStringBuilder.Append(value3);
}
else
{
outputStringBuilder.Append((char)num);
}
}
return(outputStringBuilder.ToString());
}
/// <summary>
/// Encodes input strings for use in HTML.
/// </summary>
/// <param name="input">String to be encoded</param>
/// <param name="useNamedEntities">Value indicating if the HTML 4.0 named entities should be used.</param>
/// <param name="encoderTweak">A <see cref="T:Microsoft.Security.Application.MethodSpecificEncoder" /> function, if needed.</param>
/// <returns>
/// Encoded string for use in HTML.
/// </returns>
private static string HtmlEncode(string input, bool useNamedEntities, MethodSpecificEncoder encoderTweak)
{
if (string.IsNullOrEmpty(input))
{
return(input);
}
if (characterValues == null)
{
InitialiseSafeList();
}
char[][] array = null;
if (useNamedEntities)
{
array = namedEntitiesLazy.Value;
}
StringBuilder outputStringBuilder = EncoderUtil.GetOutputStringBuilder(input.Length, 10);
AcquireReadLock();
try
{
Utf16StringReader utf16StringReader = new Utf16StringReader(input);
while (true)
{
int num = utf16StringReader.ReadNextScalarValue();
if (num < 0)
{
break;
}
if (num > 65535)
{
char[] value = SafeList.HashThenValueGenerator(num);
outputStringBuilder.Append('&');
outputStringBuilder.Append(value);
outputStringBuilder.Append(';');
}
else
{
char c = (char)num;
char[] value2;
if (encoderTweak != null && encoderTweak(c, out value2))
{
outputStringBuilder.Append(value2);
}
else if (useNamedEntities && array[num] != null)
{
char[] value3 = array[num];
outputStringBuilder.Append('&');
outputStringBuilder.Append(value3);
outputStringBuilder.Append(';');
}
else if (characterValues[num] != null)
{
char[] value4 = characterValues[num];
outputStringBuilder.Append('&');
outputStringBuilder.Append(value4);
outputStringBuilder.Append(';');
}
else
{
outputStringBuilder.Append(c);
}
}
}
}
finally
{
ReleaseReadLock();
}
return(outputStringBuilder.ToString());
}