/// <summary> Matches this pattern for at least min times
/// and at most max times.
/// Return the total match length.
/// </summary>
/// <param name="min">the minimal number of times to match.
/// </param>
/// <param name="max">the maximal number of times to match.
/// </param>
/// <returns> the new Pattern object.
/// </returns>
public Pattern Some(int min, int max)
{
if (min < 0 || max < 0 || min > max)
{
throw new System.ArgumentException();
}
if (max == 0)
{
return(Patterns.Always());
}
return(new SomeMinPattern(min, this, max));
}
/// <summary> Matches the input against this pattern for n times.</summary>
/// <param name="n">the number of times to match.
/// </param>
/// <returns> the new Pattern object.
/// </returns>
public Pattern Repeat(int n)
{
if (n == 0)
{
return(Patterns.Always());
}
if (n == 1)
{
return(this);
}
return(new RepeatPattern(n, this));
}
/// <summary> Matches this pattern for up to max times.
/// Return the total match length.
/// </summary>
/// <param name="max">the maximal number of times to match.
/// </param>
/// <returns> the new Pattern object.
/// </returns>
public Pattern Some(int max)
{
if (max < 0)
{
throw new System.ArgumentException("max<0");
}
if (max == 0)
{
return(Patterns.Always());
}
return(new SomePattern(max, this));
}