private void ExtendIdentifierCharacterRanges(CharacterSet identifierCharSet)
{
var characterRanges = ListAllCharacterRanges();
foreach (var charRange in characterRanges)
{
identifierCharSet.AddCharacters(charRange.ToCharacterSet());
}
}
// Content text is an unusual parse rule compared with most since it's
// less about saying "this is is the small selection of stuff that we parse"
// and more "we parse ANYTHING except this small selection of stuff".
protected string ContentTextNoEscape()
{
// Eat through text, pausing at the following characters, and
// attempt to parse the nonTextRule.
// "-": possible start of divert or start of gather
// "<": possible start of glue
if (_nonTextPauseCharacters == null)
{
_nonTextPauseCharacters = new CharacterSet("-<");
}
// If we hit any of these characters, we stop *immediately* without bothering to even check the nonTextRule
// "{" for start of logic
// "|" for mid logic branch
if (_nonTextEndCharacters == null)
{
_nonTextEndCharacters = new CharacterSet("{}|\n\r\\");
_notTextEndCharactersChoice = new CharacterSet(_nonTextEndCharacters);
_notTextEndCharactersChoice.AddCharacters("[]");
_notTextEndCharactersString = new CharacterSet(_nonTextEndCharacters);
_notTextEndCharactersString.AddCharacters("\"");
}
// When the ParseUntil pauses, check these rules in case they evaluate successfully
ParseRule nonTextRule = () => OneOf(ParseDivertArrow, EndOfLine, Glue);
CharacterSet endChars = null;
if (parsingStringExpression)
{
endChars = _notTextEndCharactersString;
}
else if (_parsingChoice)
{
endChars = _notTextEndCharactersChoice;
}
else
{
endChars = _nonTextEndCharacters;
}
string pureTextContent = ParseUntil(nonTextRule, _nonTextPauseCharacters, endChars);
if (pureTextContent != null)
{
return(pureTextContent);
}
else
{
return(null);
}
}