/*
 * 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
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package org.apache.lucene.analysis.ckb;


import static org.apache.lucene.analysis.util.StemmerUtil.endsWith;

Light stemmer for Sorani
/** * Light stemmer for Sorani */
public class SoraniStemmer {
Stem an input buffer of Sorani text.
Params:
  • s – input buffer
  • len – length of input buffer
Returns:length of input buffer after normalization
/** * Stem an input buffer of Sorani text. * * @param s input buffer * @param len length of input buffer * @return length of input buffer after normalization */
public int stem(char s[], int len) { // postposition if (len > 5 && endsWith(s, len, "دا")) { len -= 2; } else if (len > 4 && endsWith(s, len, "نا")) { len--; } else if (len > 6 && endsWith(s, len, "ەوە")) { len -= 3; } // possessive pronoun if (len > 6 && (endsWith(s, len, "مان") || endsWith(s, len, "یان") || endsWith(s, len, "تان"))) { len -= 3; } // indefinite singular ezafe if (len > 6 && endsWith(s, len, "ێکی")) { return len-3; } else if (len > 7 && endsWith(s, len, "یەکی")) { return len-4; } // indefinite singular if (len > 5 && endsWith(s, len, "ێک")) { return len-2; } else if (len > 6 && endsWith(s, len, "یەک")) { return len-3; } // definite singular else if (len > 6 && endsWith(s, len, "ەکە")) { return len-3; } else if (len > 5 && endsWith(s, len, "کە")) { return len-2; } // definite plural else if (len > 7 && endsWith(s, len, "ەکان")) { return len-4; } else if (len > 6 && endsWith(s, len, "کان")) { return len-3; } // indefinite plural ezafe else if (len > 7 && endsWith(s, len, "یانی")) { return len-4; } else if (len > 6 && endsWith(s, len, "انی")) { return len-3; } // indefinite plural else if (len > 6 && endsWith(s, len, "یان")) { return len-3; } else if (len > 5 && endsWith(s, len, "ان")) { return len-2; } // demonstrative plural else if (len > 7 && endsWith(s, len, "یانە")) { return len-4; } else if (len > 6 && endsWith(s, len, "انە")) { return len-3; } // demonstrative singular else if (len > 5 && (endsWith(s, len, "ایە") || endsWith(s, len, "ەیە"))) { return len-2; } else if (len > 4 && endsWith(s, len, "ە")) { return len-1; } // absolute singular ezafe else if (len > 4 && endsWith(s, len, "ی")) { return len-1; } return len; } }