/// <summary>
/// A non-capturing group
/// </summary>
/// <param name="innerExpression"></param>
/// <returns></returns>
public RegexPattern Phrase(RegexPattern innerExpression)
{
_content.Append($"(?:{innerExpression})");
return(this);
}
/// <summary>
/// Matches any single character not contained within
/// </summary>
/// <param name="innerExpression"></param>
/// <returns></returns>
public RegexPattern NegatedSet(RegexPattern innerExpression)
{
_content.Append($"[^{innerExpression}]");
return(this);
}
/// <summary>
/// A subset of the pattern that can be referenced as ordinal captures
/// </summary>
/// <param name="innerExpression"></param>
/// <returns></returns>
public RegexPattern Group(RegexPattern innerExpression)
{
_content.Append($"({innerExpression})");
return(this);
}
/// <summary>
/// A subset of the pattern that can be referenced as a named capture
/// </summary>
/// <param name="groupName"></param>
/// <param name="innerExpression"></param>
/// <returns></returns>
public RegexPattern NamedGroup(string groupName, RegexPattern innerExpression)
{
_content.AppendFormat("(?<{1}>{0})", innerExpression, groupName);
return(this);
}
public RegexLazyQuantifier(RegexPattern quantifiedExpression) : base(quantifiedExpression)
{
}
internal RegexQuantifier(RegexPattern quantifiedExpression)
{
_quantifiedExpression = quantifiedExpression;
}
public RegexPattern If(int unnamedCaptureToMatch, RegexPattern then, RegexPattern otherwise)
{
return(_precedingRegexPattern.RegEx($"(?({unnamedCaptureToMatch}){then}|{otherwise})"));
}
public RegexPattern If(string namedGroupToMatch, RegexPattern then, RegexPattern otherwise)
{
return(_precedingRegexPattern.RegEx($"(?({namedGroupToMatch}){then}|{otherwise})"));
}
public RegexPattern If(RegexPattern matched, RegexPattern then, RegexPattern otherwise)
{
return(_precedingRegexPattern.RegEx($"(?(?={matched}){then}|{otherwise})"));
}
public RegexPattern Either(RegexPattern firstOption, RegexPattern secondOption)
{
return(_precedingRegexPattern.RegEx($"({firstOption}|{secondOption})"));
}
internal RegexAlternation(RegexPattern precedingRegexPattern)
{
_precedingRegexPattern = precedingRegexPattern;
}