public new static TParenExpression Claim(StringClaimer claimer)
{
Claim lb = claimer.Claim(LeftBracket);
if (!lb.Success)
{
return(null);
}
TParenExpression ptoken = new TParenExpression {
_realExpression = TExpression.Claim(claimer)
};
if (ptoken._realExpression == null)
{
lb.Fail();
return(null);
}
lb.Pass();
Claim rb = claimer.Claim(RightBracket);
if (rb.Success)
{
rb.Pass(); // right bracket is optional. So just pass it if we get it.
}
return(ptoken);
}
private static TExpression pre_claim(StringClaimer claimer)
{
return(TAssignment.Claim(claimer) ??
TIf.Claim(claimer) ??
TFor.Claim(claimer) ??
TWhile.Claim(claimer) ??
TVariable.Claim(claimer) ??
TLiteral.Claim(claimer) ??
TParenExpression.Claim(claimer) ??
TBlock.Claim(claimer) as TExpression);
}
