public ConcatExp Concat(Regexp exp)
{
if (exp.Type != ExpType.PlaceHolder)
{
ExpList.Add(exp);
}
return(this);
}
public JoinExp Join(Regexp exp)
{
if (exp.Type == ExpType.PlaceHolder)
{
return(this);
}
if (exp.Type != ExpType.Join)
{
ExpList.Add(exp);
}
else
{
ExpList.AddRange(((JoinExp)exp).ExpList);
}
return(this);
}
public ConcatExp(Regexp x, Regexp y) : base(ExpType.Concat)
{
ExpList.Add(x);
ExpList.Add(y);
}
public JoinExp(Regexp x, Regexp y) : base(ExpType.Join)
{
ExpList.Add(x);
ExpList.Add(y);
}
