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/**
* (C) Copyright 2017 Benjamin Culkin.
*
* Licensed 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 bjc.inflexion.nouns;
/**
* Implementation of {@link NounInflection} for nouns matched by a regular
* expression.
*
* @author EVE
*
*/
public class CategoricalNounInflection implements NounInflection {
private static final String TOSTRING_FMT = "CategoricalNounInflection [singular=%s, modernPlural=%s,"
+ " classicalPlural=%s]";
private InflectionAffix singular;
private InflectionAffix modernPlural;
private InflectionAffix classicalPlural;
/**
* Create a new categorical inflection.
*
* @param singlar
* The affix for the singular form.
*
* @param modrnPlural
* The affix for the modern plural.
*
* @param classiclPlural
* The affix for the classical plural.
*/
public CategoricalNounInflection(InflectionAffix singlar, InflectionAffix modrnPlural,
InflectionAffix classiclPlural) {
if(singlar == null)
throw new NullPointerException("Singular form must not be null");
else if(modrnPlural == null && classiclPlural == null)
throw new NullPointerException("One of modern/classical plural forms must not be null");
singular = singlar;
modernPlural = modrnPlural;
classicalPlural = classiclPlural;
}
@Override
public boolean matches(String noun) {
if(singular.hasAffix(noun))
return true;
else if(modernPlural != null && modernPlural.hasAffix(noun))
return true;
else if(classicalPlural != null && classicalPlural.hasAffix(noun))
return true;
else
return false;
}
@Override
public boolean isSingular(String noun) {
if(singular.hasAffix(noun))
return true;
else if(matchesPlural(noun))
return false;
else {
String msg = String.format("Noun '%s' doesn't belong to this inflection", noun, this);
throw new InflectionException(msg);
}
}
@Override
public boolean isPlural(String noun) {
if(singular.hasAffix(noun))
return false;
else if(matchesPlural(noun))
return true;
else {
String msg = String.format("Noun '%s' doesn't belong to this inflection", noun, this);
throw new InflectionException(msg);
}
}
@Override
public String singularize(String plural) {
if(singular.hasAffix(plural))
return plural;
else if(modernPlural != null && modernPlural.hasAffix(plural))
return singular.affix(modernPlural.deaffix(plural));
else if(classicalPlural != null && classicalPlural.hasAffix(plural))
return singular.affix(classicalPlural.deaffix(plural));
else {
String msg = String.format("Noun '%s' doesn't belong to this inflection", plural, this);
throw new InflectionException(msg);
}
}
@Override
public String pluralize(String singlar) {
if(singular.hasAffix(singlar)) {
if(modernPlural == null) {
return classicalPlural.affix(singular.deaffix(singlar));
} else {
return modernPlural.affix(singular.deaffix(singlar));
}
} else if(matchesPlural(singlar)) {
return singlar;
} else {
String msg = String.format("Noun '%s' doesn't belong to this inflection", singlar, this);
throw new InflectionException(msg);
}
}
private boolean matchesPlural(String noun) {
boolean hasModernPlural = modernPlural != null && modernPlural.hasAffix(noun);
return hasModernPlural || (classicalPlural != null && classicalPlural.hasAffix(noun));
}
@Override
public String toString() {
return String.format(TOSTRING_FMT, singular, modernPlural, classicalPlural);
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((classicalPlural == null) ? 0 : classicalPlural.hashCode());
result = prime * result + ((modernPlural == null) ? 0 : modernPlural.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if(this == obj) return true;
if(obj == null) return false;
if(!(obj instanceof CategoricalNounInflection)) return false;
CategoricalNounInflection other = (CategoricalNounInflection) obj;
if(classicalPlural == null) {
if(other.classicalPlural != null) return false;
} else if(!classicalPlural.equals(other.classicalPlural)) return false;
if(modernPlural == null) {
if(other.modernPlural != null) return false;
} else if(!modernPlural.equals(other.modernPlural)) return false;
return true;
}
@Override
public String pluralizeModern(String singlar) {
if(modernPlural == null) return pluralizeClassical(singlar);
String actSinglar = singlar;
if(isPlural(singlar)) {
actSinglar = singularize(singlar);
}
return modernPlural.affix(singular.deaffix(actSinglar));
}
@Override
public String pluralizeClassical(String singlar) {
if(classicalPlural == null) return pluralizeModern(singlar);
String actSinglar = singlar;
if(isPlural(singlar)) {
actSinglar = singularize(singlar);
}
return classicalPlural.affix(singular.deaffix(actSinglar));
}
}
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