Class PersianAnalyzer

Analyzer for Persian.

This Analyzer uses PersianCharFilter which implies tokenizing around zero-width non-joiner in addition to whitespace. Some persian-specific variant forms (such as farsi yeh and keheh) are standardized. "Stemming" is accomplished via stopwords.

Inheritance
System.Object
Analyzer
StopwordAnalyzerBase
PersianAnalyzer
Inherited Members
Lucene.Net.Analysis.Analyzer.NewAnonymous(System.Func<System.String, System.IO.TextReader, Lucene.Net.Analysis.TokenStreamComponents>)
Lucene.Net.Analysis.Analyzer.NewAnonymous(System.Func<System.String, System.IO.TextReader, Lucene.Net.Analysis.TokenStreamComponents>, Lucene.Net.Analysis.ReuseStrategy)
Lucene.Net.Analysis.Analyzer.NewAnonymous(System.Func<System.String, System.IO.TextReader, Lucene.Net.Analysis.TokenStreamComponents>, System.Func<System.String, System.IO.TextReader, System.IO.TextReader>)
Lucene.Net.Analysis.Analyzer.NewAnonymous(System.Func<System.String, System.IO.TextReader, Lucene.Net.Analysis.TokenStreamComponents>, System.Func<System.String, System.IO.TextReader, System.IO.TextReader>, Lucene.Net.Analysis.ReuseStrategy)
Lucene.Net.Analysis.Analyzer.GetTokenStream(System.String, System.IO.TextReader)
Lucene.Net.Analysis.Analyzer.GetObjectData(System.Runtime.Serialization.SerializationInfo, System.Runtime.Serialization.StreamingContext)
System.Object.ToString()
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
Assembly: Lucene.Net.Analysis.Common.dll
Syntax
[Serializable]
public sealed class PersianAnalyzer : StopwordAnalyzerBase, IDisposable

Constructors

Name Description
PersianAnalyzer(LuceneVersion)

Builds an analyzer with the default stop words: DEFAULT_STOPWORD_FILE.
PersianAnalyzer(LuceneVersion, CharArraySet)

Builds an analyzer with the given stop words

Fields

Name Description
DEFAULT_STOPWORD_FILE

File containing default Persian stopwords.

Default stopword list is from http://members.unine.ch/jacques.savoy/clef/index.html. The stopword list is BSD-Licensed.
STOPWORDS_COMMENT

The comment character in the stopwords file. All lines prefixed with this will be ignored

Properties

Name Description
DefaultStopSet

Returns an unmodifiable instance of the default stop-words set.

Methods

Name Description
CreateComponents(String, TextReader)

Creates TokenStreamComponents used to tokenize all the text in the provided System.IO.TextReader.
InitReader(String, TextReader)

Wraps the System.IO.TextReader with PersianCharFilter

Extension Methods