/// <summary>
/// Create a new <see cref="ICUTransformFilter"/> that transforms text on the given stream.
/// </summary>
/// <param name="input"><see cref="TokenStream"/> to filter.</param>
/// <param name="transform">Transliterator to transform the text.</param>
public ICUTransformFilter(TokenStream input, Transliterator transform)
: base(input)
{
this.transform = transform;
this.termAtt = AddAttribute <ICharTermAttribute>();
/*
* This is cheating, but speeds things up a lot.
* If we wanted to use pkg-private APIs we could probably do better.
*/
#pragma warning disable 612, 618
if (transform.Filter == null && transform is RuleBasedTransliterator)
#pragma warning restore 612, 618
{
UnicodeSet sourceSet = transform.GetSourceSet();
if (sourceSet != null && sourceSet.Any())
{
transform.Filter = sourceSet;
}
}
}
