public static string ReadBackwardsTo(this CodeNinja.AmbientParser.IUnoCodeReader r, string token)
{
var offset = r.Offset;
while (true)
{
var tt = r.PeekTokenReverse();
if (tt == TokenType.EndOfFile)
{
return(r.ReadText(offset - r.Offset));
}
if (tt == TokenType.Identifier)
{
var text = r.ReadText(offset - r.Offset);
if (text.StartsWith(token))
{
return(text);
}
}
var k = r.ReadTokenReverse();
if (k == TokenType.EndOfFile)
{
return(null);
}
}
}
public static string ReadBackwardsTo(this CodeNinja.AmbientParser.IUnoCodeReader r, params TokenType[] tokenTypes)
{
var offset = r.Offset;
while (true)
{
var tt = r.PeekTokenReverse();
if (tt == TokenType.EndOfFile)
{
return(r.ReadText(offset - r.Offset));
}
if (tokenTypes.Contains(tt))
{
return(r.ReadText(offset - r.Offset));
}
var k = r.ReadTokenReverse();
if (k == TokenType.EndOfFile)
{
return(null);
}
}
}