package org.apache.lucene.analysis.kr.utils;
/**
* 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.
*/
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.lucene.analysis.kr.morph.AnalysisOutput;
import org.apache.lucene.analysis.kr.morph.MorphException;
import org.apache.lucene.analysis.kr.morph.PatternConstants;
import org.apache.lucene.analysis.kr.morph.WordEntry;
public class VerbUtil {
public static final Map verbSuffix = new HashMap();
public static final Map XVerb = new HashMap();
static {
String[] suffixs = {
"이","하","되","내", "나", "스럽","시키","있","없","같","당하","만하","드리","받","짓"};
for(int i=0;i<suffixs.length;i++) verbSuffix.put(suffixs[i], suffixs[i]);
String[] xverbs = {"오","내","주","보","지","오르","올리"};
for(int i=0;i<xverbs.length;i++) XVerb.put(xverbs[i], xverbs[i]);
}
/**
* 어간이 용언화접미사로 끝나면 index 를 반환한다. 아니면 -1을 반환한다.
* @param result
* @return
*/
public static int endsWithVerbSuffix(String stem) {
int len = stem.length();
if(len<2) return -1;
int start = 2;
if(len==2) start = 1;
for(int i=start;i>0;i--) { // suffix 의 가장 긴 글자수가 2이다.
if(verbSuffix.get(stem.substring(len-i))!=null) return (len-i);
}
return -1;
}
/**
* 어간부에 보조용언 [하,되,오,내,주,지]가 있는지 조사한다.
* @param stem
* @return
*/
public static int endsWithXVerb(String stem) {
int len = stem.length();
if(len<2) return -1;
int start = 2;
if(len==2) start = 1;
for(int i=start;i>0;i--) { //xverbs 의 가장 긴 글자수는 2이다.
if(XVerb.get(stem.substring(len-i))!=null) return (len-i);
}
return -1;
}
public static boolean verbSuffix(String stem) {
return verbSuffix.get(stem)!=null;
}
public static boolean constraintVerb(String start, String end) {
char[] schs = MorphUtil.decompose(start.charAt(start.length()-1));
char[] echs = MorphUtil.decompose(end.charAt(0));
if(schs.length==3&&schs[2]=='ㄹ'&&echs[0]=='ㄹ') return false;
return true;
}
/**
* 3. 학교에서이다 : 체언 + '에서/부터/에서부터' + '이' + 어미 (PTN_NJCM) <br>
*/
public static boolean ananlysisNJCM(AnalysisOutput o, List candidates) throws MorphException {
int strlen = o.getStem().length();
boolean success = false;
if(strlen>3&&(o.getStem().endsWith("에서이")||o.getStem().endsWith("부터이"))) {
o.addElist(o.getStem().substring(strlen-1));
o.setJosa(o.getStem().substring(strlen-3,strlen-1));
o.setStem(o.getStem().substring(0,strlen-3));
success = true;
}else if(strlen>5&&(o.getStem().endsWith("에서부터이"))) {
o.addElist(o.getStem().substring(strlen-1));
o.setJosa(o.getStem().substring(strlen-5,strlen-1));
o.setStem(o.getStem().substring(0,strlen-5));
success = true;
}
if(!success) return false;
if(success&&DictionaryUtil.getNoun(o.getStem())!=null) {
o.setScore(AnalysisOutput.SCORE_CORRECT);
// }else {
// NounUtil.confirmCNoun(o);
}
o.setPatn(PatternConstants.PTN_NJCM);
o.setPos(PatternConstants.POS_NOUN);
candidates.add(o);
return true;
}
/**
* 어미부와 어간부가 분리된 상태에서 용언화접미사가 결합될 수 있는지 조사한다.
* @param o 어미부와 어간부가 분리된 결과
* @param candidates
* @return
* @throws MorphException
*/
public static boolean ananlysisNSM(AnalysisOutput o, List candidates) throws MorphException {
if(o.getStem().endsWith("스러우")) o.setStem(o.getStem().substring(0,o.getStem().length()-3)+"스럽");
int idxVbSfix = VerbUtil.endsWithVerbSuffix(o.getStem());
if(idxVbSfix<1) return false;
o.setVsfx(o.getStem().substring(idxVbSfix));
o.setStem(o.getStem().substring(0,idxVbSfix));
o.setPatn(PatternConstants.PTN_NSM);
o.setPos(PatternConstants.POS_NOUN);
WordEntry entry = DictionaryUtil.getWordExceptVerb(o.getStem());
// if(entry==null&&NounUtil.confirmCNoun(o)&&o.getCNounList().size()>0) {
// entry = DictionaryUtil.getNoun(o.getCNounList().get(o.getCNounList().size()-1).getWord());
// }
// if(entry==null) return false;
// if(entry==null) {
// NounUtil.confirmDNoun(o);
// if(o.getScore()!=AnalysisOutput.SCORE_CORRECT) return false;
// }
if(entry!=null) {
if(entry.getFeature(WordEntry.IDX_NOUN)=='0') return false;
else if(o.getVsfx().equals("하")&&entry.getFeature(WordEntry.IDX_DOV)!='1') return false;
else if(o.getVsfx().equals("되")&&entry.getFeature(WordEntry.IDX_BEV)!='1') return false;
else if(o.getVsfx().equals("내")&&entry.getFeature(WordEntry.IDX_NE)!='1') return false;
o.setScore(AnalysisOutput.SCORE_CORRECT); // '입니다'인 경우 인명 등 미등록어가 많이 발생되므로 분석성공으로 가정한다.
}else {
o.setScore(AnalysisOutput.SCORE_ANALYSIS); // '입니다'인 경우 인명 등 미등록어가 많이 발생되므로 분석성공으로 가정한다.
}
candidates.add(o);
return true;
}
public static boolean ananlysisNSMXM(AnalysisOutput o, List candidates) throws MorphException {
int idxXVerb = VerbUtil.endsWithXVerb(o.getStem());
if(idxXVerb==-1) return false;
String eogan = o.getStem().substring(0,idxXVerb);
String[] stomis = null;
if((eogan.endsWith("아")||eogan.endsWith("어"))&&eogan.length()>1)
stomis = EomiUtil.splitEomi(eogan.substring(0,eogan.length()-1),eogan.substring(eogan.length()-1));
else
stomis = EomiUtil.splitEomi(eogan,"");
if(stomis[0]==null) return false;
o.addElist(stomis[1]);
int idxVbSfix = VerbUtil.endsWithVerbSuffix(stomis[0]);
if(idxVbSfix==-1) return false;
o.setXverb(o.getStem().substring(idxXVerb));
o.setVsfx(stomis[0].substring(idxVbSfix));
o.setStem(stomis[0].substring(0,idxVbSfix));
o.setPatn(PatternConstants.PTN_NSMXM);
o.setPos(PatternConstants.POS_NOUN);
WordEntry entry = DictionaryUtil.getNoun(o.getStem());
// if(entry==null&&NounUtil.confirmCNoun(o)&&o.getCNounList().size()>0) {
// entry = DictionaryUtil.getNoun(o.getCNounList().get(o.getCNounList().size()-1));
// }
if(entry==null) return false;
if(o.getVsfx().equals("하")&&entry.getFeature(WordEntry.IDX_DOV)!='1') return false;
if(o.getVsfx().equals("되")&&entry.getFeature(WordEntry.IDX_BEV)!='1') return false;
o.setScore(AnalysisOutput.SCORE_CORRECT);
candidates.add(o);
return true;
}
public static boolean analysisVMCM(AnalysisOutput o, List candidates) throws MorphException {
int strlen = o.getStem().length();
if(strlen<2) return false;
if(!o.getStem().endsWith("이")) return false;
char[] chrs = MorphUtil.decompose(o.getStem().charAt(strlen-2));
boolean success = false;
if(strlen>2&&o.getStem().endsWith("기이")) {
o.setStem(o.getStem().substring(0,strlen-2));
o.addElist("기");
success = true;
} else if(chrs.length>2&&chrs[2]=='ㅁ'){
String[] eres = EomiUtil.splitEomi(o.getStem().substring(0,strlen-1), "");
if(eres[0]==null) return false;
o.addElist(eres[1]);
String[] irrs = IrregularUtil.restoreIrregularVerb(eres[0], eres[1]);
if(irrs!=null) o.setStem(irrs[0]);
else o.setStem(eres[0]);
success = true;
}
if(success) {
o.addElist("이");
if(DictionaryUtil.getVerb(o.getStem())!=null) {
o.setPos(PatternConstants.POS_VERB);
o.setPatn(PatternConstants.PTN_VMCM);
o.setScore(AnalysisOutput.SCORE_CORRECT);
candidates.add(o);
return true;
}
}
return false;
}
/**
*
* 6. 도와주다 : 용언 + '아/어' + 보조용언 + 어미 (PTN_VMXM)
*
* @param o
* @param candidates
* @return
* @throws MorphException
*/
public static boolean analysisVMXM(AnalysisOutput o, List candidates) throws MorphException {
int idxXVerb = VerbUtil.endsWithXVerb(o.getStem());
if(idxXVerb==-1) return false;
o.setXverb(o.getStem().substring(idxXVerb));
String eogan = o.getStem().substring(0,idxXVerb);
String[] stomis = null;
if(eogan.endsWith("아")||eogan.endsWith("어")) {
stomis = EomiUtil.splitEomi(eogan.substring(0,eogan.length()-1),eogan.substring(eogan.length()-1));
if(stomis[0]==null) return false;
}else {
stomis = EomiUtil.splitEomi(eogan, "");
if(stomis[0]==null||!(stomis[1].startsWith("아")||stomis[1].startsWith("어"))) return false;
}
String[] irrs = IrregularUtil.restoreIrregularVerb(stomis[0], stomis[1]);
if(irrs!=null) {
o.setStem(irrs[0]);
o.addElist(irrs[1]);
} else {
o.setStem(stomis[0]);
o.addElist(stomis[1]);
}
if(DictionaryUtil.getVerb(o.getStem())!=null) {
o.setPos(PatternConstants.POS_VERB);
o.setPatn(PatternConstants.PTN_VMXM);
o.setScore(AnalysisOutput.SCORE_CORRECT);
candidates.add(o);
return true;
}
return false;
}
}