protected override void ResolveDqsEscape(EscapeMatch escapeMatch, StringBuilder sb)
{
char c = ResolveDqsEscapeChar(escapeMatch);
if (IsLegalXmlChar(c))
{
sb.Append(c);
}
}
protected char ResolveDqsEscapeCode(EscapeMatch escapeMatch)
{
var code = escapeMatch.Value.TrimStart('$', '(', '\t', ' ').TrimEnd(')', '\t', ' ');
if (code[0] != '#')
{
return((char)int.Parse(code));
}
return(Convert.ToChar(Convert.ToUInt32(code.Substring(1), 16)));
}
protected char ResolveDqsEscapeChar(EscapeMatch escapeMatch)
{
var text = escapeMatch.Value;
if (text[0] == '$')
{
return(ResolveDqsEscapeCode(escapeMatch));
}
//This is EscSeq
switch (text[1])
{ //'$'|'b'|'f'|'n'|'r'|'t'|'v'
case '"':
case '\'':
case '\\':
case '/':
case '$':
return(text[1]);
case 'b':
return((char)8);
case 'f':
return((char)0xC);
case 'n':
return((char)0xA);
case 'r':
return((char)0xD);
case 't':
return((char)0x9);
case 'v':
return((char)0xB);
case 'u':
return(Convert.ToChar(Convert.ToUInt32(text.Substring(2), 16)));
}
return((char)0);//should never reach this code if lexer works correctly
}
protected virtual void ResolveDqsEscape(EscapeMatch escapeMatch, StringBuilder sb)
{
char c = ResolveDqsEscapeChar(escapeMatch);
sb.Append(c);
}