protected void UnescapeSymbolValue()
{
Debug.Assert(CharSource[_startPosition] == '@' && CharSource[_startPosition + 1] == '@');
if (SkipValueParsing)
{
return;
}
_value = _s;
UString original = CharSource.Slice(_startPosition + 2, InputPosition - _startPosition - 2);
if (_hasEscapes)
{
_textValue = Les3Lexer.UnescapeQuotedString(ref original, Error);
Debug.Assert(original.IsEmpty);
}
else if (original[0, '\0'] == '`')
{
_textValue = original.Substring(1, original.Length - 2);
}
else
{
_textValue = original;
}
}
protected UString UnescapeString(bool isTripleQuoted, bool allowExtraIndent = false)
{
if (SkipValueParsing)
{
return("");
}
if (_hasEscapes)
{
UString original = CharSource.Slice(_startPosition, InputPosition - _startPosition);
_textValue = Les3Lexer.UnescapeQuotedString(ref original, Error, IndentString, allowExtraIndent);
Debug.Assert(original.IsEmpty);
}
else
{
Debug.Assert(CharSource.TryGet(InputPosition - 1, '?') == CharSource.TryGet(_startPosition, '!'));
if (isTripleQuoted)
{
_textValue = CharSource.Slice(_startPosition + 3, InputPosition - _startPosition - 6).ToString();
}
else
{
_textValue = CharSource.Slice(_startPosition + 1, InputPosition - _startPosition - 2).ToString();
}
}
return(_textValue);
}
// After the generated lexer code determines the boundaries of the token,
// one of these methods extracts the value of the token (e.g. "17L" => (long)17)
// There are value parsers for identifiers, numbers, and strings; certain
// parser cores are also accessible as public static methods.
#region String unescaping (including public UnescapeQuotedString())
protected void UnescapeSQStringValue()
{
_value = _c;
var text = Text();
if (!_hasEscapes)
{
_textValue = text.Slice(1, text.Length - 2);
}
else
{
_textValue = Les3Lexer.UnescapeQuotedString(ref text, Error);
}
}
protected internal static object ParseSQStringValue(UString text, Action <int, string> Error)
{
var sb = TempSB();
Les3Lexer.UnescapeQuotedString(ref text, Error, sb, "\t");
Debug.Assert(text.IsEmpty);
if (sb.Length == 1)
{
return(CG.Cache(sb[0]));
}
else
{
if (sb.Length == 0)
{
Error(0, Localize.Localized("Empty character literal"));
}
else
{
Error(0, Localize.Localized("Character literal has {0} characters (there should be exactly one)", sb.Length));
}
return(sb.ToString());
}
}
public static void UnescapeQuotedString(ref UString sourceText, Action <int, string> onError, StringBuilder sb, UString indentation = default(UString), bool les3TQIndents = false) => Les3Lexer.UnescapeQuotedString(ref sourceText, onError, sb, indentation, les3TQIndents);