org.apache.lucene.analysis.pt.PortugueseMinimalStemmer Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.lucene.analysis.pt;
/**
* Minimal Stemmer for Portuguese
*
* This follows the "RSLP-S" algorithm presented in:
* A study on the Use of Stemming for Monolingual Ad-Hoc Portuguese
* Information Retrieval (Orengo, et al)
* which is just the plural reduction step of the RSLP
* algorithm from A Stemming Algorithm for the Portuguese Language,
* Orengo et al.
* @see RSLPStemmerBase
*/
public class PortugueseMinimalStemmer extends RSLPStemmerBase {
private static final Step pluralStep =
parse(PortugueseMinimalStemmer.class, "portuguese.rslp").get("Plural");
public int stem(char s[], int len) {
return pluralStep.apply(s, len);
}
}