tools/cldr-unittest/src/org/unicode/cldr/unittest/TestPluralRuleGeneration.java

package org.unicode.cldr.unittest;

import java.util.HashSet;
import java.util.Set;
import java.util.TreeSet;

import org.unicode.cldr.util.CLDRConfig;
import org.unicode.cldr.util.SupplementalDataInfo;
import org.unicode.cldr.util.SupplementalDataInfo.PluralInfo;
import org.unicode.cldr.util.SupplementalDataInfo.PluralType;

import com.ibm.icu.text.PluralRules;
import com.ibm.icu.text.PluralRules.SampleType;

public class TestPluralRuleGeneration extends TestFmwkPlus {
    public static void main(String[] args) {
        new TestPluralRuleGeneration().run(args);
    }

    public void TestGeneration() {
        /*
         * <pluralRules locales="am bn fa gu hi kn mr zu"> <pluralRule
         * count="one">i = 0 or n = 1 @integer 0, 1 @decimal 0.0~1.0,
         * 0.00~0.04</pluralRule> <pluralRule count="other"> @integer 2~17, 100,
         * 1000, 10000, 100000, 1000000, … @decimal 1.1~2.6, 10.0, 100.0,
         * 1000.0, 10000.0, 100000.0, 1000000.0, …</pluralRule> </pluralRules>
         */
        PluralRules rules = PluralRules.createRules("one:i = 0 or n = 1");
        boolean i = rules.computeLimited("one", SampleType.INTEGER);
        boolean d = rules.computeLimited("one", SampleType.DECIMAL);
        System.out.println(i + ", " + d);
    }

    public void TestFilipino() {
        /*
         * <pluralRules locales="am bn fa gu hi kn mr zu"> <pluralRule
         * count="one">i = 0 or n = 1 @integer 0, 1 @decimal 0.0~1.0,
         * 0.00~0.04</pluralRule> <pluralRule count="other"> @integer 2~17, 100,
         * 1000, 10000, 100000, 1000000, … @decimal 1.1~2.6, 10.0, 100.0,
         * 1000.0, 10000.0, 100000.0, 1000000.0, …</pluralRule> </pluralRules>
         */
        PluralRules rules = PluralRules
            .createRules("one:v = 0 and i = 1,2,3 or v = 0 and i % 10 != 4,6,9 or v != 0 and f % 10 != 4,6,9");
        Object[][] test = { { 1, "one" }, { 3, "one" }, { 5, "one" },
            { 15, "one" }, { 4.5, "one" }, { 4, "other" },
            { 1.4, "other" }, };
    }

    public void TestAtoms() {
        CLDRConfig testInfo = CLDRConfig.getInstance();
        SupplementalDataInfo supp = testInfo.getSupplementalDataInfo();
        Set<PluralRules> seen = new HashSet();
        Set<String> atoms = new TreeSet();
        Set<String> limitedSet = new TreeSet();
        for (PluralType type : SupplementalDataInfo.PluralType.values()) {
            for (String locale : supp.getPluralLocales(type)) {
                PluralInfo info = supp.getPlurals(locale, false);
                if (info == null) {
                    continue;
                }
                PluralRules rules = info.getPluralRules();
                if (seen.contains(rules)) {
                    continue;
                }
                seen.add(rules);
                for (String keyword : rules.getKeywords()) {
                    String rulesString = rules.getRules(keyword);
                    if (rulesString.isEmpty()) {
                        continue;
                    }

                    for (String orPart : rulesString.split("\\s*or\\s*")) {
                        for (String andPart : orPart.split("\\s*and\\s*")) {
                            PluralRules rules2 = PluralRules
                                .createRules("one: " + andPart);
                            boolean i = rules.computeLimited("one",
                                SampleType.INTEGER);
                            boolean d = rules.computeLimited("one",
                                SampleType.DECIMAL);
                            limitedSet.add((i ? "in" : "i∞") + " "
                                + (d ? "dn" : "d∞") + " : " + andPart);
                        }
                    }
                }
            }
        }
        for (String item : limitedSet) {
            System.out.println(item);
        }

    }
}