private static string ScanHexNumber(SlidingTextWindow window)
{
var buffer = new StringBuilder();
while (true)
{
if (window.IsAtEnd())
{
return(buffer.ToString());
}
char current = window.Peek();
if (!IsHexDigit(current))
{
return(buffer.ToString());
}
buffer.Append(current);
window.Advance();
}
}
private IEnumerable <SyntaxTrivia> ScanTrailingTrivia()
{
if (IsWhiteSpace(textWindow.Peek()))
{
yield return(ScanWhitespace());
}
if (textWindow.Peek() == '/' && textWindow.Peek(1) == '/')
{
yield return(ScanSingleLineComment());
yield break;
}
if (textWindow.Peek() == '/' && textWindow.Peek(1) == '*')
{
yield return(ScanMultiLineComment());
yield break;
}
}