/// <summary>
/// Add an existing <see cref="RegexNegativeLookbehindAssertionNode"/> to the generator.
/// </summary>
/// <param name="group"><see cref="RegexNegativeLookbehindAssertionNode"/> to be added.</param>
/// <returns><see cref="RegexGenerator"/></returns>
/// <exception cref="NegativeLookbehindAssertionNotSupportedException">Negative lookbehind assertion is not supported by <see cref="RegexLanguage"/>.</exception>
public RegexGenerator AddNegativeLookbehindAssertion(RegexNegativeLookbehindAssertionNode negativeLookbehindAssertion)
{
if (!IsNegativeLookbehindAssertionSupported)
{
throw new NegativeLookbehindAssertionNotSupportedException(RegexLanguage);
}
return(Add(negativeLookbehindAssertion));
}
public virtual string ToNegativeLookbehindAssertionString(RegexNegativeLookbehindAssertionNode negativeLookbehindAssertion)
{
if (!IsNegativeLookbehindAssertionSupported)
{
throw new NegativeLookbehindAssertionNotSupportedException(RegexLanguage);
}
if (negativeLookbehindAssertion == null)
{
throw new ArgumentNullException(nameof(negativeLookbehindAssertion));
}
var sb = new StringBuilder();
sb.Append(ToTokenString(RegexToken.NegativeLookbehindAssertionOpen))
.Append(negativeLookbehindAssertion.IsInnerNodeIncluded ? ToString(negativeLookbehindAssertion.InnerNode) : negativeLookbehindAssertion.Pattern)
.Append(ToTokenString(RegexToken.NegativeLookbehindAssertionClose));
return(AddQuantifier(sb.ToString(), negativeLookbehindAssertion.Minimum, negativeLookbehindAssertion.Maximum, negativeLookbehindAssertion.RegexQuantifierOption));
}
/// <summary>
/// Create and add <see cref="RegexNegativeLookbehindAssertionNode"/> to the generator, and include another <see cref="RegexNode"/> inside.
/// </summary>
/// <param name="innerNode">An existing <see cref="RegexNode"/> to be included.</param>
/// <param name="min">Optional minimum number of occurance.</param>
/// <param name="max">Optional maximum number of occurance.</param>
/// <param name="quantifierOption">Optional quantifier option.</param>
/// <returns><see cref="RegexGenerator"/></returns>
/// <exception cref="NegativeLookbehindAssertionNotSupportedException">Negative lookbehind assertion is not supported by <see cref="RegexLanguage"/>.</exception>
public RegexGenerator AddNegativeLookbehindAssertion(RegexNode innerNode, int?min = null, int?max = null, RegexQuantifierOption quantifierOption = RegexQuantifierOption.Greedy)
{
var negativeLookbehindAssertion = new RegexNegativeLookbehindAssertionNode(innerNode, min, max, quantifierOption);
return(AddNegativeLookbehindAssertion(negativeLookbehindAssertion));
}
