/// <summary>
/// In general you can't put named entities directly in XML PCDATA.
/// Most entities must use numeric instead.
/// </summary>
/// <param name="attribute">If true, escape \r and \n to their numeric equivalents</param>
public static string EscapeEntitiesForXml(string plaintext, bool attribute)
{
if (plaintext == null)
{
return(null);
}
StringBuilder output = new StringBuilder();
foreach (char c in plaintext)
{
switch (c)
{
case '"':
case '&':
case '<':
case '>':
output.Append(EntityEscaper.Char(c));
break;
case '\r':
case '\n':
if (attribute)
{
AppendNumericEntity(c, output);
}
else
{
output.Append(c);
}
break;
case '\'':
if (attribute)
{
AppendNumericEntity(c, output);
}
else
{
output.Append(c);
}
break;
case (char)160:
AppendNumericEntity(c, output);
break;
default:
output.Append(c);
break;
}
}
return(output.ToString());
}
public static string EscapeEntities(string plaintext)
{
if (plaintext == null)
return null;
StringBuilder output = new StringBuilder();
foreach (char c in plaintext)
{
output.Append(EntityEscaper.Char(c));
}
return output.ToString();
}
public static string EscapeEntity(char c)
{
return(EntityEscaper.Char(c));
}
