/// <summary>
/// Appends the text representation of the character group containing the current instance to the specified <see cref="PatternBuilder"/>.
/// </summary>
/// <param name="builder">The builder to use for appending the text.</param>
/// <exception cref="ArgumentNullException"><paramref name="builder"/> is <c>null</c>.</exception>
public void AppendExcludedGroupTo(PatternBuilder builder)
{
if (builder == null)
{
throw new ArgumentNullException(nameof(builder));
}
builder.AppendCharGroupStart();
AppendGroupContentTo(builder);
builder.AppendCharGroupEnd();
}
internal override void AppendTo(PatternBuilder builder)
{
builder.AppendCharGroupStart(Negative);
_group.AppendContentTo(builder);
builder.AppendCharGroupEnd();
}