private Token NextDateLiteral()
{
int start = Index++;
var str = GetStringBuilder();
while (!IsEof())
{
char c = Code.GetChar(Index);
if (c == '#' || CharUtils.IsNewLine(c))
{
break;
}
else
{
str.Append(c);
++Index;
}
}
if (Code.GetChar(Index) != '#' || str.Length == 0)
{
throw VBSyntaxError(VBSyntaxErrorCode.SyntaxError);
}
var date = LexerUtils.GetDate(str.ToString());
return(new DateLiteralToken
{
Start = start,
End = ++Index,
LineNumber = CurrentLine,
LineStart = CurrentLineStart,
Value = date,
});
}
private Token NextIdentifier()
{
int start = Index;
string id = GetIdentifierName();
Token result;
if (id.CIEquals("true"))
{
result = new TrueLiteralToken();
}
else if (id.CIEquals("null"))
{
result = new NullLiteralToken();
}
else if (id.CIEquals("false"))
{
result = new FalseLiteralToken();
}
else if (id.CIEquals("empty"))
{
result = new EmptyLiteralToken();
}
else if (id.CIEquals("nothing"))
{
result = new NothingLiteralToken();
}
else if (LexerUtils.IsKeyword(id))
{
result = new KeywordToken {
Keyword = LexerUtils.GetKeyword(id),
Name = id,
}
}
;
else if (LexerUtils.IsKeywordAsIdentifier(id))
{
result = new KeywordOrIdentifierToken
{
Keyword = LexerUtils.GetKeywordAsIdentifier(id),
Name = id,
}
}
;
else
{
result = new IdentifierToken {
Name = id
}
};
result.Start = start;
result.End = Index;
result.LineNumber = CurrentLine;
result.LineStart = CurrentLineStart;
return(result);
}
