internal static bool IsPrimary(this XSharpToken token)
{
if (token.IsName())
{
return(true);
}
if (token.IsLiteral())
{
return(true);
}
return(false);
}
internal static bool CanJoin(this XSharpToken token, XSharpToken nextToken)
{
if (token == null)
{
return(nextToken.IsName() || nextToken.IsLiteral() || nextToken.IsPrefix());
}
if (token.IsPrefix() || token.IsBinary()) // we allow .and. .not. and even .not. .not.
{
return(nextToken.IsPrimaryOrPrefix());
}
if (nextToken.IsBinary() || nextToken.NeedsLeft() || nextToken.IsPostFix())
{
return(token.IsPrimary() || token.IsClose());
}
return(false);
}