/// <summary>Creates a new <see cref="ICUNormalizer2FilterFactory"/>.</summary>
public ICUNormalizer2FilterFactory(IDictionary <string, string> args)
: base(args)
{
string name = Get(args, "name", "nfkc_cf");
string mode = Get(args, "mode", new string[] { "compose", "decompose" }, "compose");
Normalizer2 normalizer = Normalizer2.GetInstance
(null, name, "compose".Equals(mode, StringComparison.Ordinal) ? Normalizer2Mode.Compose : Normalizer2Mode.Decompose);
string filter = Get(args, "filter");
if (filter != null)
{
UnicodeSet set = new UnicodeSet(filter);
if (set.Any())
{
set.Freeze();
normalizer = new FilteredNormalizer2(normalizer, set);
}
}
if (args.Count > 0)
{
throw new ArgumentException(string.Format(J2N.Text.StringFormatter.CurrentCulture, "Unknown parameters: {0}", args));
}
this.normalizer = normalizer;
}
/// <summary>Creates a new <see cref="ICUNormalizer2CharFilterFactory"/>.</summary>
public ICUNormalizer2CharFilterFactory(IDictionary <string, string> args)
: base(args)
{
string name = Get(args, "name", "nfkc_cf");
string mode = Get(args, "mode", new string[] { "compose", "decompose" }, "compose");
Normalizer2 normalizer = Normalizer2.GetInstance
(null, name, "compose".Equals(mode) ? Normalizer2Mode.Compose : Normalizer2Mode.Decompose);
string filter = Get(args, "filter");
if (filter != null)
{
UnicodeSet set = new UnicodeSet(filter);
if (set.Any())
{
set.Freeze();
normalizer = new FilteredNormalizer2(normalizer, set);
}
}
if (args.Count > 0)
{
throw new ArgumentException("Unknown parameters: " + args);
}
this.normalizer = normalizer;
}
/// <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;
}
}
}