+++ /dev/null
-package org.apache.lucene.analysis.br;
-
-/**
- * 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.
- */
-
-/**
- * A stemmer for Brazilian Portuguese words.
- */
-public class BrazilianStemmer {
-
- /**
- * Changed term
- */
- private String TERM ;
- private String CT ;
- private String R1 ;
- private String R2 ;
- private String RV ;
-
-
- public BrazilianStemmer() {
- }
-
- /**
- * Stems the given term to an unique <tt>discriminator</tt>.
- *
- * @param term The term that should be stemmed.
- * @return Discriminator for <tt>term</tt>
- */
- protected String stem( String term ) {
- boolean altered = false ; // altered the term
-
- // creates CT
- createCT(term) ;
-
- if ( !isIndexable( CT ) ) {
- return null;
- }
- if ( !isStemmable( CT ) ) {
- return CT ;
- }
-
- R1 = getR1(CT) ;
- R2 = getR1(R1) ;
- RV = getRV(CT) ;
- TERM = term + ";" +CT ;
-
- altered = step1() ;
- if (!altered) {
- altered = step2() ;
- }
-
- if (altered) {
- step3();
- } else {
- step4();
- }
-
- step5() ;
-
- return CT ;
- }
-
- /**
- * Checks a term if it can be processed correctly.
- *
- * @return true if, and only if, the given term consists in letters.
- */
- private boolean isStemmable( String term ) {
- for ( int c = 0; c < term.length(); c++ ) {
- // Discard terms that contain non-letter characters.
- if ( !Character.isLetter(term.charAt(c))) {
- return false;
- }
- }
- return true;
- }
-
- /**
- * Checks a term if it can be processed indexed.
- *
- * @return true if it can be indexed
- */
- private boolean isIndexable( String term ) {
- return (term.length() < 30) && (term.length() > 2) ;
- }
-
- /**
- * See if string is 'a','e','i','o','u'
- *
- * @return true if is vowel
- */
- private boolean isVowel( char value ) {
- return (value == 'a') ||
- (value == 'e') ||
- (value == 'i') ||
- (value == 'o') ||
- (value == 'u') ;
- }
-
- /**
- * Gets R1
- *
- * R1 - is the region after the first non-vowel following a vowel,
- * or is the null region at the end of the word if there is
- * no such non-vowel.
- *
- * @return null or a string representing R1
- */
- private String getR1( String value ) {
- int i;
- int j;
-
- // be-safe !!!
- if (value == null) {
- return null ;
- }
-
- // find 1st vowel
- i = value.length()-1 ;
- for (j=0 ; j < i ; j++) {
- if (isVowel(value.charAt(j))) {
- break ;
- }
- }
-
- if (!(j < i)) {
- return null ;
- }
-
- // find 1st non-vowel
- for ( ; j < i ; j++) {
- if (!(isVowel(value.charAt(j)))) {
- break ;
- }
- }
-
- if (!(j < i)) {
- return null ;
- }
-
- return value.substring(j+1) ;
- }
-
- /**
- * Gets RV
- *
- * RV - IF the second letter is a consonant, RV is the region after
- * the next following vowel,
- *
- * OR if the first two letters are vowels, RV is the region
- * after the next consonant,
- *
- * AND otherwise (consonant-vowel case) RV is the region after
- * the third letter.
- *
- * BUT RV is the end of the word if this positions cannot be
- * found.
- *
- * @return null or a string representing RV
- */
- private String getRV( String value ) {
- int i;
- int j;
-
- // be-safe !!!
- if (value == null) {
- return null ;
- }
-
- i = value.length()-1 ;
-
- // RV - IF the second letter is a consonant, RV is the region after
- // the next following vowel,
- if ((i > 0) && !isVowel(value.charAt(1))) {
- // find 1st vowel
- for (j=2 ; j < i ; j++) {
- if (isVowel(value.charAt(j))) {
- break ;
- }
- }
-
- if (j < i) {
- return value.substring(j+1) ;
- }
- }
-
-
- // RV - OR if the first two letters are vowels, RV is the region
- // after the next consonant,
- if ((i > 1) &&
- isVowel(value.charAt(0)) &&
- isVowel(value.charAt(1))) {
- // find 1st consoant
- for (j=2 ; j < i ; j++) {
- if (!isVowel(value.charAt(j))) {
- break ;
- }
- }
-
- if (j < i) {
- return value.substring(j+1) ;
- }
- }
-
- // RV - AND otherwise (consonant-vowel case) RV is the region after
- // the third letter.
- if (i > 2) {
- return value.substring(3) ;
- }
-
- return null ;
- }
-
- /**
- * 1) Turn to lowercase
- * 2) Remove accents
- * 3) ã -> a ; õ -> o
- * 4) ç -> c
- *
- * @return null or a string transformed
- */
- private String changeTerm( String value ) {
- int j;
- String r = "" ;
-
- // be-safe !!!
- if (value == null) {
- return null ;
- }
-
- value = value.toLowerCase() ;
- for (j=0 ; j < value.length() ; j++) {
- if ((value.charAt(j) == 'á') ||
- (value.charAt(j) == 'â') ||
- (value.charAt(j) == 'ã')) {
- r= r + "a" ; continue ;
- }
- if ((value.charAt(j) == 'é') ||
- (value.charAt(j) == 'ê')) {
- r= r + "e" ; continue ;
- }
- if (value.charAt(j) == 'í') {
- r= r + "i" ; continue ;
- }
- if ((value.charAt(j) == 'ó') ||
- (value.charAt(j) == 'ô') ||
- (value.charAt(j) == 'õ')) {
- r= r + "o" ; continue ;
- }
- if ((value.charAt(j) == 'ú') ||
- (value.charAt(j) == 'ü')) {
- r= r + "u" ; continue ;
- }
- if (value.charAt(j) == 'ç') {
- r= r + "c" ; continue ;
- }
- if (value.charAt(j) == 'ñ') {
- r= r + "n" ; continue ;
- }
-
- r= r+ value.charAt(j) ;
- }
-
- return r ;
- }
-
- /**
- * Check if a string ends with a suffix
- *
- * @return true if the string ends with the specified suffix
- */
- private boolean suffix( String value, String suffix ) {
-
- // be-safe !!!
- if ((value == null) || (suffix == null)) {
- return false ;
- }
-
- if (suffix.length() > value.length()) {
- return false ;
- }
-
- return value.substring(value.length()-suffix.length()).equals(suffix);
- }
-
- /**
- * Replace a string suffix by another
- *
- * @return the replaced String
- */
- private String replaceSuffix( String value, String toReplace, String changeTo ) {
- String vvalue ;
-
- // be-safe !!!
- if ((value == null) ||
- (toReplace == null) ||
- (changeTo == null) ) {
- return value ;
- }
-
- vvalue = removeSuffix(value,toReplace) ;
-
- if (value.equals(vvalue)) {
- return value ;
- } else {
- return vvalue + changeTo ;
- }
- }
-
- /**
- * Remove a string suffix
- *
- * @return the String without the suffix
- */
- private String removeSuffix( String value, String toRemove ) {
- // be-safe !!!
- if ((value == null) ||
- (toRemove == null) ||
- !suffix(value,toRemove) ) {
- return value ;
- }
-
- return value.substring(0,value.length()-toRemove.length()) ;
- }
-
- /**
- * See if a suffix is preceded by a String
- *
- * @return true if the suffix is preceded
- */
- private boolean suffixPreceded( String value, String suffix, String preceded ) {
- // be-safe !!!
- if ((value == null) ||
- (suffix == null) ||
- (preceded == null) ||
- !suffix(value,suffix) ) {
- return false ;
- }
-
- return suffix(removeSuffix(value,suffix),preceded) ;
- }
-
- /**
- * Creates CT (changed term) , substituting * 'ã' and 'õ' for 'a~' and 'o~'.
- */
- private void createCT( String term ) {
- CT = changeTerm(term) ;
-
- if (CT.length() < 2) return ;
-
- // if the first character is ... , remove it
- if ((CT.charAt(0) == '"') ||
- (CT.charAt(0) == '\'') ||
- (CT.charAt(0) == '-') ||
- (CT.charAt(0) == ',') ||
- (CT.charAt(0) == ';') ||
- (CT.charAt(0) == '.') ||
- (CT.charAt(0) == '?') ||
- (CT.charAt(0) == '!')
- ) {
- CT = CT.substring(1);
- }
-
- if (CT.length() < 2) return ;
-
- // if the last character is ... , remove it
- if ((CT.charAt(CT.length()-1) == '-') ||
- (CT.charAt(CT.length()-1) == ',') ||
- (CT.charAt(CT.length()-1) == ';') ||
- (CT.charAt(CT.length()-1) == '.') ||
- (CT.charAt(CT.length()-1) == '?') ||
- (CT.charAt(CT.length()-1) == '!') ||
- (CT.charAt(CT.length()-1) == '\'') ||
- (CT.charAt(CT.length()-1) == '"')
- ) {
- CT = CT.substring(0,CT.length()-1);
- }
- }
-
-
- /**
- * Standard suffix removal.
- * Search for the longest among the following suffixes, and perform
- * the following actions:
- *
- * @return false if no ending was removed
- */
- private boolean step1() {
- if (CT == null) return false ;
-
- // suffix length = 7
- if (suffix(CT,"uciones") && suffix(R2,"uciones")) {
- CT = replaceSuffix(CT,"uciones","u") ; return true;
- }
-
- // suffix length = 6
- if (CT.length() >= 6) {
- if (suffix(CT,"imentos") && suffix(R2,"imentos")) {
- CT = removeSuffix(CT,"imentos") ; return true;
- }
- if (suffix(CT,"amentos") && suffix(R2,"amentos")) {
- CT = removeSuffix(CT,"amentos") ; return true;
- }
- if (suffix(CT,"adores") && suffix(R2,"adores")) {
- CT = removeSuffix(CT,"adores") ; return true;
- }
- if (suffix(CT,"adoras") && suffix(R2,"adoras")) {
- CT = removeSuffix(CT,"adoras") ; return true;
- }
- if (suffix(CT,"logias") && suffix(R2,"logias")) {
- replaceSuffix(CT,"logias","log") ; return true;
- }
- if (suffix(CT,"encias") && suffix(R2,"encias")) {
- CT = replaceSuffix(CT,"encias","ente") ; return true;
- }
- if (suffix(CT,"amente") && suffix(R1,"amente")) {
- CT = removeSuffix(CT,"amente") ; return true;
- }
- if (suffix(CT,"idades") && suffix(R2,"idades")) {
- CT = removeSuffix(CT,"idades") ; return true;
- }
- }
-
- // suffix length = 5
- if (CT.length() >= 5) {
- if (suffix(CT,"acoes") && suffix(R2,"acoes")) {
- CT = removeSuffix(CT,"acoes") ; return true;
- }
- if (suffix(CT,"imento") && suffix(R2,"imento")) {
- CT = removeSuffix(CT,"imento") ; return true;
- }
- if (suffix(CT,"amento") && suffix(R2,"amento")) {
- CT = removeSuffix(CT,"amento") ; return true;
- }
- if (suffix(CT,"adora") && suffix(R2,"adora")) {
- CT = removeSuffix(CT,"adora") ; return true;
- }
- if (suffix(CT,"ismos") && suffix(R2,"ismos")) {
- CT = removeSuffix(CT,"ismos") ; return true;
- }
- if (suffix(CT,"istas") && suffix(R2,"istas")) {
- CT = removeSuffix(CT,"istas") ; return true;
- }
- if (suffix(CT,"logia") && suffix(R2,"logia")) {
- CT = replaceSuffix(CT,"logia","log") ; return true;
- }
- if (suffix(CT,"ucion") && suffix(R2,"ucion")) {
- CT = replaceSuffix(CT,"ucion","u") ; return true;
- }
- if (suffix(CT,"encia") && suffix(R2,"encia")) {
- CT = replaceSuffix(CT,"encia","ente") ; return true;
- }
- if (suffix(CT,"mente") && suffix(R2,"mente")) {
- CT = removeSuffix(CT,"mente") ; return true;
- }
- if (suffix(CT,"idade") && suffix(R2,"idade")) {
- CT = removeSuffix(CT,"idade") ; return true;
- }
- }
-
- // suffix length = 4
- if (CT.length() >= 4) {
- if (suffix(CT,"acao") && suffix(R2,"acao")) {
- CT = removeSuffix(CT,"acao") ; return true;
- }
- if (suffix(CT,"ezas") && suffix(R2,"ezas")) {
- CT = removeSuffix(CT,"ezas") ; return true;
- }
- if (suffix(CT,"icos") && suffix(R2,"icos")) {
- CT = removeSuffix(CT,"icos") ; return true ;
- }
- if (suffix(CT,"icas") && suffix(R2,"icas")) {
- CT = removeSuffix(CT,"icas") ; return true ;
- }
- if (suffix(CT,"ismo") && suffix(R2,"ismo")) {
- CT = removeSuffix(CT,"ismo") ; return true ;
- }
- if (suffix(CT,"avel") && suffix(R2,"avel")) {
- CT = removeSuffix(CT,"avel") ; return true ;
- }
- if (suffix(CT,"ivel") && suffix(R2,"ivel")) {
- CT = removeSuffix(CT,"ivel") ; return true ;
- }
- if (suffix(CT,"ista") && suffix(R2,"ista")) {
- CT = removeSuffix(CT,"ista") ; return true ;
- }
- if (suffix(CT,"osos") && suffix(R2,"osos")) {
- CT = removeSuffix(CT,"osos") ; return true ;
- }
- if (suffix(CT,"osas") && suffix(R2,"osas")) {
- CT = removeSuffix(CT,"osas") ; return true ;
- }
- if (suffix(CT,"ador") && suffix(R2,"ador")) {
- CT = removeSuffix(CT,"ador") ; return true ;
- }
- if (suffix(CT,"ivas") && suffix(R2,"ivas")) {
- CT = removeSuffix(CT,"ivas") ; return true ;
- }
- if (suffix(CT,"ivos") && suffix(R2,"ivos")) {
- CT = removeSuffix(CT,"ivos") ; return true ;
- }
- if (suffix(CT,"iras") &&
- suffix(RV,"iras") &&
- suffixPreceded(CT,"iras","e")) {
- CT = replaceSuffix(CT,"iras","ir") ; return true ;
- }
- }
-
- // suffix length = 3
- if (CT.length() >= 3) {
- if (suffix(CT,"eza") && suffix(R2,"eza")) {
- CT = removeSuffix(CT,"eza") ; return true ;
- }
- if (suffix(CT,"ico") && suffix(R2,"ico")) {
- CT = removeSuffix(CT,"ico") ; return true ;
- }
- if (suffix(CT,"ica") && suffix(R2,"ica")) {
- CT = removeSuffix(CT,"ica") ; return true ;
- }
- if (suffix(CT,"oso") && suffix(R2,"oso")) {
- CT = removeSuffix(CT,"oso") ; return true ;
- }
- if (suffix(CT,"osa") && suffix(R2,"osa")) {
- CT = removeSuffix(CT,"osa") ; return true ;
- }
- if (suffix(CT,"iva") && suffix(R2,"iva")) {
- CT = removeSuffix(CT,"iva") ; return true ;
- }
- if (suffix(CT,"ivo") && suffix(R2,"ivo")) {
- CT = removeSuffix(CT,"ivo") ; return true ;
- }
- if (suffix(CT,"ira") &&
- suffix(RV,"ira") &&
- suffixPreceded(CT,"ira","e")) {
- CT = replaceSuffix(CT,"ira","ir") ; return true ;
- }
- }
-
- // no ending was removed by step1
- return false ;
- }
-
-
- /**
- * Verb suffixes.
- *
- * Search for the longest among the following suffixes in RV,
- * and if found, delete.
- *
- * @return false if no ending was removed
- */
- private boolean step2() {
- if (RV == null) return false ;
-
- // suffix lenght = 7
- if (RV.length() >= 7) {
- if (suffix(RV,"issemos")) {
- CT = removeSuffix(CT,"issemos") ; return true;
- }
- if (suffix(RV,"essemos")) {
- CT = removeSuffix(CT,"essemos") ; return true;
- }
- if (suffix(RV,"assemos")) {
- CT = removeSuffix(CT,"assemos") ; return true;
- }
- if (suffix(RV,"ariamos")) {
- CT = removeSuffix(CT,"ariamos") ; return true;
- }
- if (suffix(RV,"eriamos")) {
- CT = removeSuffix(CT,"eriamos") ; return true;
- }
- if (suffix(RV,"iriamos")) {
- CT = removeSuffix(CT,"iriamos") ; return true;
- }
- }
-
- // suffix length = 6
- if (RV.length() >= 6) {
- if (suffix(RV,"iremos")) {
- CT = removeSuffix(CT,"iremos") ; return true;
- }
- if (suffix(RV,"eremos")) {
- CT = removeSuffix(CT,"eremos") ; return true;
- }
- if (suffix(RV,"aremos")) {
- CT = removeSuffix(CT,"aremos") ; return true;
- }
- if (suffix(RV,"avamos")) {
- CT = removeSuffix(CT,"avamos") ; return true;
- }
- if (suffix(RV,"iramos")) {
- CT = removeSuffix(CT,"iramos") ; return true;
- }
- if (suffix(RV,"eramos")) {
- CT = removeSuffix(CT,"eramos") ; return true;
- }
- if (suffix(RV,"aramos")) {
- CT = removeSuffix(CT,"aramos") ; return true;
- }
- if (suffix(RV,"asseis")) {
- CT = removeSuffix(CT,"asseis") ; return true;
- }
- if (suffix(RV,"esseis")) {
- CT = removeSuffix(CT,"esseis") ; return true;
- }
- if (suffix(RV,"isseis")) {
- CT = removeSuffix(CT,"isseis") ; return true;
- }
- if (suffix(RV,"arieis")) {
- CT = removeSuffix(CT,"arieis") ; return true;
- }
- if (suffix(RV,"erieis")) {
- CT = removeSuffix(CT,"erieis") ; return true;
- }
- if (suffix(RV,"irieis")) {
- CT = removeSuffix(CT,"irieis") ; return true;
- }
- }
-
-
- // suffix length = 5
- if (RV.length() >= 5) {
- if (suffix(RV,"irmos")) {
- CT = removeSuffix(CT,"irmos") ; return true;
- }
- if (suffix(RV,"iamos")) {
- CT = removeSuffix(CT,"iamos") ; return true;
- }
- if (suffix(RV,"armos")) {
- CT = removeSuffix(CT,"armos") ; return true;
- }
- if (suffix(RV,"ermos")) {
- CT = removeSuffix(CT,"ermos") ; return true;
- }
- if (suffix(RV,"areis")) {
- CT = removeSuffix(CT,"areis") ; return true;
- }
- if (suffix(RV,"ereis")) {
- CT = removeSuffix(CT,"ereis") ; return true;
- }
- if (suffix(RV,"ireis")) {
- CT = removeSuffix(CT,"ireis") ; return true;
- }
- if (suffix(RV,"asses")) {
- CT = removeSuffix(CT,"asses") ; return true;
- }
- if (suffix(RV,"esses")) {
- CT = removeSuffix(CT,"esses") ; return true;
- }
- if (suffix(RV,"isses")) {
- CT = removeSuffix(CT,"isses") ; return true;
- }
- if (suffix(RV,"astes")) {
- CT = removeSuffix(CT,"astes") ; return true;
- }
- if (suffix(RV,"assem")) {
- CT = removeSuffix(CT,"assem") ; return true;
- }
- if (suffix(RV,"essem")) {
- CT = removeSuffix(CT,"essem") ; return true;
- }
- if (suffix(RV,"issem")) {
- CT = removeSuffix(CT,"issem") ; return true;
- }
- if (suffix(RV,"ardes")) {
- CT = removeSuffix(CT,"ardes") ; return true;
- }
- if (suffix(RV,"erdes")) {
- CT = removeSuffix(CT,"erdes") ; return true;
- }
- if (suffix(RV,"irdes")) {
- CT = removeSuffix(CT,"irdes") ; return true;
- }
- if (suffix(RV,"ariam")) {
- CT = removeSuffix(CT,"ariam") ; return true;
- }
- if (suffix(RV,"eriam")) {
- CT = removeSuffix(CT,"eriam") ; return true;
- }
- if (suffix(RV,"iriam")) {
- CT = removeSuffix(CT,"iriam") ; return true;
- }
- if (suffix(RV,"arias")) {
- CT = removeSuffix(CT,"arias") ; return true;
- }
- if (suffix(RV,"erias")) {
- CT = removeSuffix(CT,"erias") ; return true;
- }
- if (suffix(RV,"irias")) {
- CT = removeSuffix(CT,"irias") ; return true;
- }
- if (suffix(RV,"estes")) {
- CT = removeSuffix(CT,"estes") ; return true;
- }
- if (suffix(RV,"istes")) {
- CT = removeSuffix(CT,"istes") ; return true;
- }
- if (suffix(RV,"areis")) {
- CT = removeSuffix(CT,"areis") ; return true;
- }
- if (suffix(RV,"aveis")) {
- CT = removeSuffix(CT,"aveis") ; return true;
- }
- }
-
- // suffix length = 4
- if (RV.length() >= 4) {
- if (suffix(RV,"aria")) {
- CT = removeSuffix(CT,"aria") ; return true;
- }
- if (suffix(RV,"eria")) {
- CT = removeSuffix(CT,"eria") ; return true;
- }
- if (suffix(RV,"iria")) {
- CT = removeSuffix(CT,"iria") ; return true;
- }
- if (suffix(RV,"asse")) {
- CT = removeSuffix(CT,"asse") ; return true;
- }
- if (suffix(RV,"esse")) {
- CT = removeSuffix(CT,"esse") ; return true;
- }
- if (suffix(RV,"isse")) {
- CT = removeSuffix(CT,"isse") ; return true;
- }
- if (suffix(RV,"aste")) {
- CT = removeSuffix(CT,"aste") ; return true;
- }
- if (suffix(RV,"este")) {
- CT = removeSuffix(CT,"este") ; return true;
- }
- if (suffix(RV,"iste")) {
- CT = removeSuffix(CT,"iste") ; return true;
- }
- if (suffix(RV,"arei")) {
- CT = removeSuffix(CT,"arei") ; return true;
- }
- if (suffix(RV,"erei")) {
- CT = removeSuffix(CT,"erei") ; return true;
- }
- if (suffix(RV,"irei")) {
- CT = removeSuffix(CT,"irei") ; return true;
- }
- if (suffix(RV,"aram")) {
- CT = removeSuffix(CT,"aram") ; return true;
- }
- if (suffix(RV,"eram")) {
- CT = removeSuffix(CT,"eram") ; return true;
- }
- if (suffix(RV,"iram")) {
- CT = removeSuffix(CT,"iram") ; return true;
- }
- if (suffix(RV,"avam")) {
- CT = removeSuffix(CT,"avam") ; return true;
- }
- if (suffix(RV,"arem")) {
- CT = removeSuffix(CT,"arem") ; return true;
- }
- if (suffix(RV,"erem")) {
- CT = removeSuffix(CT,"erem") ; return true;
- }
- if (suffix(RV,"irem")) {
- CT = removeSuffix(CT,"irem") ; return true;
- }
- if (suffix(RV,"ando")) {
- CT = removeSuffix(CT,"ando") ; return true;
- }
- if (suffix(RV,"endo")) {
- CT = removeSuffix(CT,"endo") ; return true;
- }
- if (suffix(RV,"indo")) {
- CT = removeSuffix(CT,"indo") ; return true;
- }
- if (suffix(RV,"arao")) {
- CT = removeSuffix(CT,"arao") ; return true;
- }
- if (suffix(RV,"erao")) {
- CT = removeSuffix(CT,"erao") ; return true;
- }
- if (suffix(RV,"irao")) {
- CT = removeSuffix(CT,"irao") ; return true;
- }
- if (suffix(RV,"adas")) {
- CT = removeSuffix(CT,"adas") ; return true;
- }
- if (suffix(RV,"idas")) {
- CT = removeSuffix(CT,"idas") ; return true;
- }
- if (suffix(RV,"aras")) {
- CT = removeSuffix(CT,"aras") ; return true;
- }
- if (suffix(RV,"eras")) {
- CT = removeSuffix(CT,"eras") ; return true;
- }
- if (suffix(RV,"iras")) {
- CT = removeSuffix(CT,"iras") ; return true;
- }
- if (suffix(RV,"avas")) {
- CT = removeSuffix(CT,"avas") ; return true;
- }
- if (suffix(RV,"ares")) {
- CT = removeSuffix(CT,"ares") ; return true;
- }
- if (suffix(RV,"eres")) {
- CT = removeSuffix(CT,"eres") ; return true;
- }
- if (suffix(RV,"ires")) {
- CT = removeSuffix(CT,"ires") ; return true;
- }
- if (suffix(RV,"ados")) {
- CT = removeSuffix(CT,"ados") ; return true;
- }
- if (suffix(RV,"idos")) {
- CT = removeSuffix(CT,"idos") ; return true;
- }
- if (suffix(RV,"amos")) {
- CT = removeSuffix(CT,"amos") ; return true;
- }
- if (suffix(RV,"emos")) {
- CT = removeSuffix(CT,"emos") ; return true;
- }
- if (suffix(RV,"imos")) {
- CT = removeSuffix(CT,"imos") ; return true;
- }
- if (suffix(RV,"iras")) {
- CT = removeSuffix(CT,"iras") ; return true;
- }
- if (suffix(RV,"ieis")) {
- CT = removeSuffix(CT,"ieis") ; return true;
- }
- }
-
- // suffix length = 3
- if (RV.length() >= 3) {
- if (suffix(RV,"ada")) {
- CT = removeSuffix(CT,"ada") ; return true;
- }
- if (suffix(RV,"ida")) {
- CT = removeSuffix(CT,"ida") ; return true;
- }
- if (suffix(RV,"ara")) {
- CT = removeSuffix(CT,"ara") ; return true;
- }
- if (suffix(RV,"era")) {
- CT = removeSuffix(CT,"era") ; return true;
- }
- if (suffix(RV,"ira")) {
- CT = removeSuffix(CT,"ava") ; return true;
- }
- if (suffix(RV,"iam")) {
- CT = removeSuffix(CT,"iam") ; return true;
- }
- if (suffix(RV,"ado")) {
- CT = removeSuffix(CT,"ado") ; return true;
- }
- if (suffix(RV,"ido")) {
- CT = removeSuffix(CT,"ido") ; return true;
- }
- if (suffix(RV,"ias")) {
- CT = removeSuffix(CT,"ias") ; return true;
- }
- if (suffix(RV,"ais")) {
- CT = removeSuffix(CT,"ais") ; return true;
- }
- if (suffix(RV,"eis")) {
- CT = removeSuffix(CT,"eis") ; return true;
- }
- if (suffix(RV,"ira")) {
- CT = removeSuffix(CT,"ira") ; return true;
- }
- if (suffix(RV,"ear")) {
- CT = removeSuffix(CT,"ear") ; return true;
- }
- }
-
- // suffix length = 2
- if (RV.length() >= 2) {
- if (suffix(RV,"ia")) {
- CT = removeSuffix(CT,"ia") ; return true;
- }
- if (suffix(RV,"ei")) {
- CT = removeSuffix(CT,"ei") ; return true;
- }
- if (suffix(RV,"am")) {
- CT = removeSuffix(CT,"am") ; return true;
- }
- if (suffix(RV,"em")) {
- CT = removeSuffix(CT,"em") ; return true;
- }
- if (suffix(RV,"ar")) {
- CT = removeSuffix(CT,"ar") ; return true;
- }
- if (suffix(RV,"er")) {
- CT = removeSuffix(CT,"er") ; return true;
- }
- if (suffix(RV,"ir")) {
- CT = removeSuffix(CT,"ir") ; return true;
- }
- if (suffix(RV,"as")) {
- CT = removeSuffix(CT,"as") ; return true;
- }
- if (suffix(RV,"es")) {
- CT = removeSuffix(CT,"es") ; return true;
- }
- if (suffix(RV,"is")) {
- CT = removeSuffix(CT,"is") ; return true;
- }
- if (suffix(RV,"eu")) {
- CT = removeSuffix(CT,"eu") ; return true;
- }
- if (suffix(RV,"iu")) {
- CT = removeSuffix(CT,"iu") ; return true;
- }
- if (suffix(RV,"iu")) {
- CT = removeSuffix(CT,"iu") ; return true;
- }
- if (suffix(RV,"ou")) {
- CT = removeSuffix(CT,"ou") ; return true;
- }
- }
-
- // no ending was removed by step2
- return false ;
- }
-
- /**
- * Delete suffix 'i' if in RV and preceded by 'c'
- *
- */
- private void step3() {
- if (RV == null) return ;
-
- if (suffix(RV,"i") && suffixPreceded(RV,"i","c")) {
- CT = removeSuffix(CT,"i") ;
- }
-
- }
-
- /**
- * Residual suffix
- *
- * If the word ends with one of the suffixes (os a i o á í ó)
- * in RV, delete it
- *
- */
- private void step4() {
- if (RV == null) return ;
-
- if (suffix(RV,"os")) {
- CT = removeSuffix(CT,"os") ; return ;
- }
- if (suffix(RV,"a")) {
- CT = removeSuffix(CT,"a") ; return ;
- }
- if (suffix(RV,"i")) {
- CT = removeSuffix(CT,"i") ; return ;
- }
- if (suffix(RV,"o")) {
- CT = removeSuffix(CT,"o") ; return ;
- }
-
- }
-
- /**
- * If the word ends with one of ( e é ê) in RV,delete it,
- * and if preceded by 'gu' (or 'ci') with the 'u' (or 'i') in RV,
- * delete the 'u' (or 'i')
- *
- * Or if the word ends ç remove the cedilha
- *
- */
- private void step5() {
- if (RV == null) return ;
-
- if (suffix(RV,"e")) {
- if (suffixPreceded(RV,"e","gu")) {
- CT = removeSuffix(CT,"e") ;
- CT = removeSuffix(CT,"u") ;
- return ;
- }
-
- if (suffixPreceded(RV,"e","ci")) {
- CT = removeSuffix(CT,"e") ;
- CT = removeSuffix(CT,"i") ;
- return ;
- }
-
- CT = removeSuffix(CT,"e") ; return ;
- }
- }
-
- /**
- * For log and debug purpose
- *
- * @return TERM, CT, RV, R1 and R2
- */
- public String log() {
- return " (TERM = " + TERM + ")" +
- " (CT = " + CT +")" +
- " (RV = " + RV +")" +
- " (R1 = " + R1 +")" +
- " (R2 = " + R2 +")" ;
- }
-
-}
-
fnp / pylucene.git / blobdiff