Class PortugueseAnalyzer

Analyzer for Portuguese.

You must specify the required LuceneVersion compatibility when creating PortugueseAnalyzer:

  • As of 3.6, PortugueseLightStemFilter is used for less aggressive stemming.

Inheritance
System.Object
Analyzer
StopwordAnalyzerBase
PortugueseAnalyzer
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.Pt
Assembly: Lucene.Net.Analysis.Common.dll
Syntax
public sealed class PortugueseAnalyzer : StopwordAnalyzerBase, IDisposable

Constructors

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PortugueseAnalyzer(LuceneVersion)

Builds an analyzer with the default stop words: DEFAULT_STOPWORD_FILE.

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

Builds an analyzer with the given stop words.

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

lucene compatibility version

CharArraySet stopwords

a stopword set

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PortugueseAnalyzer(LuceneVersion, CharArraySet, CharArraySet)

Builds an analyzer with the given stop words. If a non-empty stem exclusion set is provided this analyzer will add a SetKeywordMarkerFilter before stemming.

Declaration
public PortugueseAnalyzer(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 Portuguese stopwords.

Declaration
public const string DEFAULT_STOPWORD_FILE = "portuguese_stop.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

default stop words set.

Methods

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CreateComponents(String, TextReader)

Creates a TokenStreamComponents which tokenizes 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

A TokenStreamComponents built from an StandardTokenizer filtered with StandardFilter, LowerCaseFilter, StopFilter , SetKeywordMarkerFilter if a stem exclusion set is provided and PortugueseLightStemFilter.

Overrides

Implements

System.IDisposable