public static Rule Opt(Rule r)
{
return(new OptRule(r));
}
public static Rule OneOrMore(Rule r)
{
return(new PlusRule(r));
}
public static Rule ZeroOrMore(Rule r)
{
return(new ZeroOrMoreRule(r));
}
public static Rule Not(Rule r)
{
return(new NotRule(r));
}
public static Rule At(Rule rule)
{
return(new AtRule(rule));
}
/// <summary>
/// This rule should be used only with a named rule, since the name
/// of the rule is used as the label.
/// </summary>
/// <param name="rule"></param>
/// <returns></returns>
public static Rule Node(Rule rule)
{
return(new NodeRule(rule));
}
