Class BrazilianAnalyzer

Analyzer for Brazilian Portuguese language.

Supports an external list of stopwords (words that will not be indexed at all) and an external list of exclusions (words that will not be stemmed, but indexed).

NOTE: This class uses the same LuceneVersion dependent settings as StandardAnalyzer.

Inheritance
System.Object
Analyzer
StopwordAnalyzerBase
BrazilianAnalyzer
Implements
System.IDisposable
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Lucene.Net.Analysis.Br
Assembly: Lucene.Net.Analysis.Common.dll
Syntax
public sealed class BrazilianAnalyzer : StopwordAnalyzerBase, IDisposable

Constructors

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BrazilianAnalyzer(LuceneVersion)

Builds an analyzer with the default stop words (DefaultStopSet).

Declaration
public BrazilianAnalyzer(LuceneVersion matchVersion)
Parameters
Type Name Description
LuceneVersion matchVersion
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BrazilianAnalyzer(LuceneVersion, CharArraySet)

Builds an analyzer with the given stop words

Declaration
public BrazilianAnalyzer(LuceneVersion matchVersion, CharArraySet stopwords)
Parameters
Type Name Description
LuceneVersion matchVersion

lucene compatibility version

CharArraySet stopwords

a stopword set

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BrazilianAnalyzer(LuceneVersion, CharArraySet, CharArraySet)

Builds an analyzer with the given stop words and stemming exclusion words

Declaration
public BrazilianAnalyzer(LuceneVersion matchVersion, CharArraySet stopwords, CharArraySet stemExclusionSet)
Parameters
Type Name Description
LuceneVersion matchVersion

lucene compatibility version

CharArraySet stopwords

a stopword set

CharArraySet stemExclusionSet

a set of terms not to be stemmed

Fields

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DEFAULT_STOPWORD_FILE

File containing default Brazilian Portuguese stopwords.

Declaration
public const string DEFAULT_STOPWORD_FILE = "stopwords.txt"
Field Value
Type Description
System.String

Properties

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DefaultStopSet

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

Declaration
public static CharArraySet DefaultStopSet { get; }
Property Value
Type Description
CharArraySet

an unmodifiable instance of the default stop-words set.

Methods

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CreateComponents(String, TextReader)

Creates TokenStreamComponents used to tokenize all the text in the provided System.IO.TextReader.

Declaration
protected override TokenStreamComponents CreateComponents(string fieldName, TextReader reader)
Parameters
Type Name Description
System.String fieldName
System.IO.TextReader reader
Returns
Type Description
TokenStreamComponents

TokenStreamComponents built from a StandardTokenizer filtered with LowerCaseFilter, StandardFilter, StopFilter, and BrazilianStemFilter.

Overrides

Implements

System.IDisposable