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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;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import bjc.inflexion.nouns.InflectionException;
import bjc.inflexion.nouns.Noun;
import bjc.inflexion.nouns.Nouns;
/**
* @author student
*
*/
public class InflectionML {
private static Pattern FORM_MARKER = Pattern.compile("<(?<command>[#A])(?<options>[^:]*):(?<text>[^>]*)>");
/**
* Apply inflection to marked forms in the string.
*
* @param form
* The string to inflect.
*
* @param nounDB
* The source to load nouns from.
*
* @return The inflected string.
*/
public static String inflect(String form, Nouns nounDB) {
Matcher formMatcher = FORM_MARKER.matcher(form);
StringBuffer formBuffer = new StringBuffer();
int curCount = 1;
boolean inflectSingular = true;
while (formMatcher.find()) {
String command = formMatcher.group("command");
String options = formMatcher.group("options");
String text = formMatcher.group("text");
Set<String> optionSet = new HashSet<>();
for (int i = 1; i <= options.length(); i++) {
optionSet.add(options.substring(i - 1, i));
}
switch (command) {
case "#":
try {
curCount = Integer.parseInt(text);
if (curCount != 1)
inflectSingular = false;
else
inflectSingular = true;
String rep = text;
if (optionSet.contains("n")) {
if (curCount == 0)
rep = "no";
}
if (optionSet.contains("s")) {
if (curCount == 0) {
rep = "no";
inflectSingular = true;
}
}
if (optionSet.contains("a")) {
/*
* TODO implement a/an for nouns
*/
}
boolean shouldOverride = !(rep.equals("no") || rep.equals("a") || rep.equals("an"));
if (optionSet.contains("w") && shouldOverride) {
rep = EnglishUtils.smallIntToWord(curCount);
} else if (optionSet.contains("f")) {
rep = EnglishUtils.intSummarize(curCount, false);
}
formMatcher.appendReplacement(formBuffer, rep);
} catch (NumberFormatException nfex) {
throw new InflectionException("Count setter must take a number as a parameter", nfex);
}
case "N":
Noun noun = nounDB.getNoun(text);
if (inflectSingular || optionSet.contains("s")) {
formMatcher.appendReplacement(formBuffer, noun.singular());
} else if (optionSet.contains("p")) {
if (optionSet.contains("c")) {
formMatcher.appendReplacement(formBuffer, noun.classicalPlural());
} else {
formMatcher.appendReplacement(formBuffer, noun.modernPlural());
}
}
default:
String msg = String.format("Unknown command '%s'", command);
throw new InflectionException(msg);
}
}
formMatcher.appendTail(formBuffer);
return formBuffer.toString();
}
}
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