8177472: Remove hard-coded IANA Subtag Registry map in LocaleEquivalentMap.java

Reviewed-by: naoto, rriggs, tbell, phh
Contributed-by: nishit.jain@oracle.com

make/Tools.gmk

@@ -123,6 +123,9 @@ TOOL_OSX_TOBIN = $(JAVA_SMALL) -Djava.awt.headless=true -cp $(JDK_OUTPUTDIR)/btc
 TOOL_CLDRCONVERTER = $(JAVA_SMALL) -cp $(JDK_OUTPUTDIR)/btclasses \
     build.tools.cldrconverter.CLDRConverter
 
+TOOL_GENERATELSREQUIVMAPS = $(JAVA_SMALL) -cp $(JDK_OUTPUTDIR)/btclasses \
+    build.tools.generatelsrequivmaps.EquivMapsGenerator
+
 TOOL_REMOVEMETHODS = $(JAVA_SMALL) -Xbootclasspath/p:$(LANGTOOLS_OUTPUTDIR)/dist/bootstrap/lib/javac.jar \
     -cp '$(JDK_OUTPUTDIR)/btclasses$(PATH_SEP)$(JDK_OUTPUTDIR)' \
     build.tools.classfile.RemoveMethods

make/gensrc/GensrcLocaleDataMetaInfo.gmk

 #
-# Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2017, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -125,3 +125,13 @@ $(GENSRC_CRBC_DST): $(JDK_TOPDIR)/src/share/classes/sun/util/CoreResourceBundleC
 GENSRC_LOCALEDATAMETAINFO += $(GENSRC_CRBC_DST)
 
 ###
+
+GENSRC_LSREQUIVMAPS_DST := $(JDK_OUTPUTDIR)/gensrc/sun/util/locale/LocaleEquivalentMaps.java
+
+$(GENSRC_LSREQUIVMAPS_DST): $(JDK_TOPDIR)/make/data/lsrdata/language-subtag-registry.txt
+	$(MKDIR) -p $(@D)
+	$(TOOL_GENERATELSREQUIVMAPS) $< $@
+
+GENSRC_LOCALEDATAMETAINFO += $(GENSRC_LSREQUIVMAPS_DST)
+
+###

test/java/util/Locale/tools/EquivMapsGenerator.java → make/src/classes/build/tools/generatelsrequivmaps/EquivMapsGenerator.java

 /*
- * Copyright (c) 2012, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2017, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -21,36 +21,42 @@
  * questions.
  */
 
-import java.nio.charset.*;
-import java.nio.file.*;
-import java.util.*;
-
+package build.tools.generatelsrequivmaps;
+
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.Calendar;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.TimeZone;
+import java.util.TreeMap;
+
+/**
+ * This tool reads the IANA Language Subtag Registry data file downloaded from
+ * http://www.iana.org/assignments/language-subtag-registry, which is specified
+ * in the command line and generates a .java source file as specified in
+ * command line. The generated .java source file contains equivalent language
+ * maps. These equivalent language maps are used by LocaleMatcher.java
+ * for the locale matching mechanism specified in RFC 4647 "Matching of Language
+ * Tags".
+ */
 public class EquivMapsGenerator {
 
-    /*
-     * IANA Language Subtag Registry file downloaded from
-     *     http://www.iana.org/assignments/language-subtag-registry
-     */
-    private static final String DEFAULT_LSR_FILE =
-        "language-subtag-registry.txt";
-
-    private static boolean verbose = false;
-
     public static void main(String[] args) throws Exception {
-        String fileLSR = DEFAULT_LSR_FILE;
-
-        for (int i = 0; i < args.length; i++) {
-            String s = args[i];
-            if (s.equals("-lsr")) {
-                fileLSR = args[++i];
-            } else if (s.equals("-verbose")) {
-                verbose = true;
-            }
+        if (args.length != 2) {
+            System.err.println("Usage: java EquivMapsGenerator"
+                    + " language-subtag-registry.txt LocaleEquivalentMaps.java");
+            System.exit(1);
         }
-
-        readLSRfile(fileLSR);
+        readLSRfile(args[0]);
         generateEquivalentMap();
-        generateSourceCode();
+        generateSourceCode(args[1]);
     }
 
     private static String LSRrevisionDate;
@@ -68,17 +74,13 @@ public class EquivMapsGenerator {
         String type = null;
         String tag = null;
         String preferred = null;
-        int mappingNum = 0;
 
         for (String line : Files.readAllLines(Paths.get(filename),
                                               Charset.forName("UTF-8"))) {
-            line = line.toLowerCase();
+            line = line.toLowerCase(Locale.ROOT);
             int index = line.indexOf(' ')+1;
             if (line.startsWith("file-date:")) {
                 LSRrevisionDate = line.substring(index);
-                if (verbose) {
-                    System.out.println("LSR revision date=" + LSRrevisionDate);
-                }
             } else if (line.startsWith("type:")) {
                 type = line.substring(index);
             } else if (line.startsWith("tag:") || line.startsWith("subtag:")) {
@@ -86,32 +88,10 @@ public class EquivMapsGenerator {
             } else if (line.startsWith("preferred-value:")
                        && !type.equals("extlang")) {
                 preferred = line.substring(index);
-                mappingNum++;
                 processDeprecatedData(type, tag, preferred);
             } else if (line.equals("%%")) {
                 type = null;
                 tag = null;
-                preferred = null;
-            }
-        }
-
-        if (verbose) {
-            System.out.println("readLSRfile(" + filename + ")");
-            System.out.println("  Total number of mapping=" + mappingNum);
-            System.out.println("\n  Map for language. Size="
-                + initialLanguageMap.size());
-
-            for (String key : initialLanguageMap.keySet()) {
-                System.out.println("    " + key + ": \""
-                    + initialLanguageMap.get(key) + "\"");
-            }
-
-            System.out.println("\n  Map for region and variant. Size="
-                + initialRegionVariantMap.size());
-
-            for (String key : initialRegionVariantMap.keySet()) {
-                System.out.println("    " + key + ": \""
-                    + initialRegionVariantMap.get(key) + "\"");
             }
         }
     }
@@ -174,32 +154,6 @@ public class EquivMapsGenerator {
             sortedRegionVariantMap.put(subtags[1], subtags[0]);
         }
 
-        if (verbose) {
-            System.out.println("generateEquivalentMap()");
-            System.out.println("  \nSorted map for language subtags which have only one equivalent. Size="
-                + sortedLanguageMap1.size());
-            for (String key : sortedLanguageMap1.keySet()) {
-                System.out.println("    " + key + ": \""
-                    + sortedLanguageMap1.get(key) + "\"");
-            }
-
-            System.out.println("\n  Sorted map for language subtags which have multiple equivalents. Size="
-                + sortedLanguageMap2.size());
-            for (String key : sortedLanguageMap2.keySet()) {
-                String[] s = sortedLanguageMap2.get(key);
-                if (s.length >= 2) {
-                    System.out.println("    " + key + ": " + generateValuesString(s) + "");
-                }
-            }
-
-            System.out.println("\n  Sorted map for region and variant subtags. Size="
-                + sortedRegionVariantMap.size());
-            for (String key : sortedRegionVariantMap.keySet()) {
-                System.out.println("    " + key + ": \""
-                    + sortedRegionVariantMap.get(key) + "\"");
-            }
-        }
-        System.out.println();
     }
 
     /* create the array of subtags excluding the subtag at index location */
@@ -226,8 +180,36 @@ public class EquivMapsGenerator {
         return outputStr;
     }
 
-    private final static String headerText =
-        "final class LocaleEquivalentMaps {\n\n"
+    private static final String COPYRIGHT = "/*\n"
+        + " * Copyright (c) 2012, %d, Oracle and/or its affiliates. All rights reserved.\n"
+        + " * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.\n"
+        + " *\n"
+        + " * This code is free software; you can redistribute it and/or modify it\n"
+        + " * under the terms of the GNU General Public License version 2 only, as\n"
+        + " * published by the Free Software Foundation.  Oracle designates this\n"
+        + " * particular file as subject to the \"Classpath\" exception as provided\n"
+        + " * by Oracle in the LICENSE file that accompanied this code.\n"
+        + " *\n"
+        + " * This code is distributed in the hope that it will be useful, but WITHOUT\n"
+        + " * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or\n"
+        + " * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License\n"
+        + " * version 2 for more details (a copy is included in the LICENSE file that\n"
+        + " * accompanied this code).\n"
+        + " *\n"
+        + " * You should have received a copy of the GNU General Public License version\n"
+        + " * 2 along with this work; if not, write to the Free Software Foundation,\n"
+        + " * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.\n"
+        + " *\n"
+        + " * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA\n"
+        + " * or visit www.oracle.com if you need additional information or have any\n"
+        + " * questions.\n"
+        + "*/\n\n";
+
+    private static final String headerText =
+        "package sun.util.locale;\n\n"
+        + "import java.util.HashMap;\n"
+        + "import java.util.Map;\n\n"
+        + "final class LocaleEquivalentMaps {\n\n"
         + "    static final Map<String, String> singleEquivMap;\n"
         + "    static final Map<String, String[]> multiEquivsMap;\n"
         + "    static final Map<String, String> regionVariantEquivMap;\n\n"
@@ -237,36 +219,64 @@ public class EquivMapsGenerator {
         + "        regionVariantEquivMap = new HashMap<>();\n\n"
         + "        // This is an auto-generated file and should not be manually edited.\n";
 
-    private final static String footerText =
+    private static final String footerText =
         "    }\n\n"
         + "}";
 
-    private static void generateSourceCode() {
-        System.out.println(headerText
-            + "        //   LSR Revision: " + LSRrevisionDate);
+    private static String getOpenJDKCopyright() {
+        int year = Calendar.getInstance(TimeZone
+                .getTimeZone("America/Los_Angeles")).get(Calendar.YEAR);
+        return String.format(Locale.US, COPYRIGHT, year);
+    }
 
-        for (String key : sortedLanguageMap1.keySet()) {
-            String value = sortedLanguageMap1.get(key);
-            System.out.println("        singleEquivMap.put(\""
-                + key + "\", \"" + value + "\");");
-        }
-        System.out.println();
-        for (String key : sortedLanguageMap2.keySet()) {
-            String[] values = sortedLanguageMap2.get(key);
+    /**
+     * The input lsr data file is in UTF-8, so theoretically for the characters
+     * beyond US-ASCII, the generated Java String literals need to be Unicode
+     * escaped (\\uXXXX) while writing to a file. But as of now, there is not
+     * the case since we don't use "description", "comment" or alike.
+     */
+    private static void generateSourceCode(String fileName) {
+
+        try (BufferedWriter writer = Files.newBufferedWriter(
+                Paths.get(fileName), StandardCharsets.UTF_8)) {
+            writer.write(getOpenJDKCopyright());
+            writer.write(headerText
+                + "        //   LSR Revision: " + LSRrevisionDate);
+            writer.newLine();
+
+            for (String key : sortedLanguageMap1.keySet()) {
+                String value = sortedLanguageMap1.get(key);
+                writer.write("        singleEquivMap.put(\""
+                    + key + "\", \"" + value + "\");");
+                writer.newLine();
+            }
+
+            writer.newLine();
+            for (String key : sortedLanguageMap2.keySet()) {
+                String[] values = sortedLanguageMap2.get(key);
+
+                if (values.length >= 2) {
+                    writer.write("        multiEquivsMap.put(\""
+                        + key + "\", new String[] {"
+                        + generateValuesString(values) + "});");
+                    writer.newLine();
+                }
+            }
 
-            if (values.length >= 2) {
-                System.out.println("        multiEquivsMap.put(\""
-                        + key + "\", new String[] {" + generateValuesString(values) + "});");
+            writer.newLine();
+            for (String key : sortedRegionVariantMap.keySet()) {
+                String value = sortedRegionVariantMap.get(key);
+                writer.write("        regionVariantEquivMap.put(\""
+                    + key + "\", \"" + value + "\");");
+                writer.newLine();
             }
-        }
-        System.out.println();
-        for (String key : sortedRegionVariantMap.keySet()) {
-            String value = sortedRegionVariantMap.get(key);
-            System.out.println("        regionVariantEquivMap.put(\""
-                + key + "\", \"" + value + "\");");
+
+            writer.write(footerText);
+        } catch (IOException ex) {
+            ex.printStackTrace(System.err);
+            System.exit(1);
         }
 
-        System.out.println(footerText);
     }
 
 }

src/share/classes/sun/util/locale/LocaleEquivalentMaps.java

-/*
- * Copyright (c) 2012, 2016, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package sun.util.locale;
-
-import java.util.HashMap;
-import java.util.Map;
-
-/**
- * Locale equivalent map for BCP47 Locale matching
- */
-final class LocaleEquivalentMaps {
-
-    static final Map<String, String> singleEquivMap;
-    static final Map<String, String[]> multiEquivsMap;
-    static final Map<String, String> regionVariantEquivMap;
-
-    static {
-        singleEquivMap = new HashMap<>();
-        multiEquivsMap = new HashMap<>();
-        regionVariantEquivMap = new HashMap<>();
-
-        // This is an auto-generated file and should not be manually edited.
-        //   LSR Revision: 2016-02-10
-        singleEquivMap.put("aam", "aas");
-        singleEquivMap.put("aas", "aam");
-        singleEquivMap.put("acn", "xia");
-        singleEquivMap.put("adp", "dz");
-        singleEquivMap.put("adx", "pcr");
-        singleEquivMap.put("ami", "i-ami");
-        singleEquivMap.put("art-lojban", "jbo");
-        singleEquivMap.put("ase", "sgn-us");
-        singleEquivMap.put("aue", "ktz");
-        singleEquivMap.put("ayx", "nun");
-        singleEquivMap.put("bfi", "sgn-gb");
-        singleEquivMap.put("bjd", "drl");
-        singleEquivMap.put("bnn", "i-bnn");
-        singleEquivMap.put("bzs", "sgn-br");
-        singleEquivMap.put("cir", "meg");
-        singleEquivMap.put("cjr", "mom");
-        singleEquivMap.put("cka", "cmr");
-        singleEquivMap.put("cmk", "xch");
-        singleEquivMap.put("cmn-hans", "zh-cmn-hans");
-        singleEquivMap.put("cmn-hant", "zh-cmn-hant");
-        singleEquivMap.put("cmr", "cka");
-        singleEquivMap.put("csn", "sgn-co");
-        singleEquivMap.put("dev", "gav");
-        singleEquivMap.put("drh", "khk");
-        singleEquivMap.put("drl", "bjd");
-        singleEquivMap.put("dse", "sgn-nl");
-        singleEquivMap.put("dsl", "sgn-dk");
-        singleEquivMap.put("dz", "adp");
-        singleEquivMap.put("ema", "uok");
-        singleEquivMap.put("en-gb-oed", "en-gb-oxendict");
-        singleEquivMap.put("en-gb-oxendict", "en-gb-oed");
-        singleEquivMap.put("fsl", "sgn-fr");
-        singleEquivMap.put("gal", "ilw");
-        singleEquivMap.put("gan", "zh-gan");
-        singleEquivMap.put("gav", "dev");
-        singleEquivMap.put("gsg", "sgn-de");
-        singleEquivMap.put("gss", "sgn-gr");
-        singleEquivMap.put("gti", "nyc");
-        singleEquivMap.put("he", "iw");
-        singleEquivMap.put("hle", "sca");
-        singleEquivMap.put("hrr", "jal");
-        singleEquivMap.put("hsn", "zh-xiang");
-        singleEquivMap.put("i-ami", "ami");
-        singleEquivMap.put("i-bnn", "bnn");
-        singleEquivMap.put("i-klingon", "tlh");
-        singleEquivMap.put("i-lux", "lb");
-        singleEquivMap.put("i-navajo", "nv");
-        singleEquivMap.put("i-pwn", "pwn");
-        singleEquivMap.put("i-tao", "tao");
-        singleEquivMap.put("i-tay", "tay");
-        singleEquivMap.put("i-tsu", "tsu");
-        singleEquivMap.put("ibi", "opa");
-        singleEquivMap.put("id", "in");
-        singleEquivMap.put("ilw", "gal");
-        singleEquivMap.put("in", "id");
-        singleEquivMap.put("ise", "sgn-it");
-        singleEquivMap.put("isg", "sgn-ie");
-        singleEquivMap.put("iw", "he");
-        singleEquivMap.put("jal", "hrr");
-        singleEquivMap.put("jbo", "art-lojban");
-        singleEquivMap.put("ji", "yi");
-        singleEquivMap.put("jsl", "sgn-jp");
-        singleEquivMap.put("jv", "jw");
-        singleEquivMap.put("jw", "jv");
-        singleEquivMap.put("kgh", "kml");
-        singleEquivMap.put("khk", "drh");
-        singleEquivMap.put("kml", "kgh");
-        singleEquivMap.put("koj", "kwv");
-        singleEquivMap.put("ktz", "aue");
-        singleEquivMap.put("kwq", "yam");
-        singleEquivMap.put("kwv", "koj");
-        singleEquivMap.put("kxe", "tvd");
-        singleEquivMap.put("lb", "i-lux");
-        singleEquivMap.put("lcq", "ppr");
-        singleEquivMap.put("lii", "raq");
-        singleEquivMap.put("lmm", "rmx");
-        singleEquivMap.put("lrr", "yma");
-        singleEquivMap.put("meg", "cir");
-        singleEquivMap.put("mfs", "sgn-mx");
-        singleEquivMap.put("mo", "ro");
-        singleEquivMap.put("mom", "cjr");
-        singleEquivMap.put("mtm", "ymt");
-        singleEquivMap.put("nan", "zh-min-nan");
-        singleEquivMap.put("nb", "no-bok");
-        singleEquivMap.put("ncs", "sgn-ni");
-        singleEquivMap.put("ngv", "nnx");
-        singleEquivMap.put("nn", "no-nyn");
-        singleEquivMap.put("nnx", "ngv");
-        singleEquivMap.put("no-bok", "nb");
-        singleEquivMap.put("no-nyn", "nn");
-        singleEquivMap.put("nsl", "sgn-no");
-        singleEquivMap.put("nun", "ayx");
-        singleEquivMap.put("nv", "i-navajo");
-        singleEquivMap.put("nyc", "gti");
-        singleEquivMap.put("opa", "ibi");
-        singleEquivMap.put("oyb", "thx");
-        singleEquivMap.put("pcr", "adx");
-        singleEquivMap.put("phr", "pmu");
-        singleEquivMap.put("pmu", "phr");
-        singleEquivMap.put("ppr", "lcq");
-        singleEquivMap.put("psr", "sgn-pt");
-        singleEquivMap.put("pub", "puz");
-        singleEquivMap.put("puz", "pub");
-        singleEquivMap.put("pwn", "i-pwn");
-        singleEquivMap.put("raq", "lii");
-        singleEquivMap.put("ras", "tie");
-        singleEquivMap.put("rmx", "lmm");
-        singleEquivMap.put("ro", "mo");
-        singleEquivMap.put("sca", "hle");
-        singleEquivMap.put("sfb", "sgn-be-fr");
-        singleEquivMap.put("sfs", "sgn-za");
-        singleEquivMap.put("sgg", "sgn-ch-de");
-        singleEquivMap.put("sgn-be-fr", "sfb");
-        singleEquivMap.put("sgn-be-nl", "vgt");
-        singleEquivMap.put("sgn-br", "bzs");
-        singleEquivMap.put("sgn-ch-de", "sgg");
-        singleEquivMap.put("sgn-co", "csn");
-        singleEquivMap.put("sgn-de", "gsg");
-        singleEquivMap.put("sgn-dk", "dsl");
-        singleEquivMap.put("sgn-es", "ssp");
-        singleEquivMap.put("sgn-fr", "fsl");
-        singleEquivMap.put("sgn-gb", "bfi");
-        singleEquivMap.put("sgn-gr", "gss");
-        singleEquivMap.put("sgn-ie", "isg");
-        singleEquivMap.put("sgn-it", "ise");
-        singleEquivMap.put("sgn-jp", "jsl");
-        singleEquivMap.put("sgn-mx", "mfs");
-        singleEquivMap.put("sgn-ni", "ncs");
-        singleEquivMap.put("sgn-nl", "dse");
-        singleEquivMap.put("sgn-no", "nsl");
-        singleEquivMap.put("sgn-pt", "psr");
-        singleEquivMap.put("sgn-se", "swl");
-        singleEquivMap.put("sgn-us", "ase");
-        singleEquivMap.put("sgn-za", "sfs");
-        singleEquivMap.put("ssp", "sgn-es");
-        singleEquivMap.put("suj", "xsj");
-        singleEquivMap.put("swl", "sgn-se");
-        singleEquivMap.put("taj", "tsf");
-        singleEquivMap.put("tao", "i-tao");
-        singleEquivMap.put("tay", "i-tay");
-        singleEquivMap.put("thx", "oyb");
-        singleEquivMap.put("tie", "ras");
-        singleEquivMap.put("tkk", "twm");
-        singleEquivMap.put("tlh", "i-klingon");
-        singleEquivMap.put("tlw", "weo");
-        singleEquivMap.put("tsf", "taj");
-        singleEquivMap.put("tsu", "i-tsu");
-        singleEquivMap.put("tvd", "kxe");
-        singleEquivMap.put("twm", "tkk");
-        singleEquivMap.put("uok", "ema");
-        singleEquivMap.put("vgt", "sgn-be-nl");
-        singleEquivMap.put("weo", "tlw");
-        singleEquivMap.put("wuu", "zh-wuu");
-        singleEquivMap.put("xch", "cmk");
-        singleEquivMap.put("xia", "acn");
-        singleEquivMap.put("xsj", "suj");
-        singleEquivMap.put("yam", "kwq");
-        singleEquivMap.put("yi", "ji");
-        singleEquivMap.put("yma", "lrr");
-        singleEquivMap.put("ymt", "mtm");
-        singleEquivMap.put("yos", "zom");
-        singleEquivMap.put("yue", "zh-yue");
-        singleEquivMap.put("yug", "yuu");
-        singleEquivMap.put("yuu", "yug");
-        singleEquivMap.put("zh-cmn-hans", "cmn-hans");
-        singleEquivMap.put("zh-cmn-hant", "cmn-hant");
-        singleEquivMap.put("zh-gan", "gan");
-        singleEquivMap.put("zh-min-nan", "nan");
-        singleEquivMap.put("zh-wuu", "wuu");
-        singleEquivMap.put("zh-xiang", "hsn");
-        singleEquivMap.put("zh-yue", "yue");
-        singleEquivMap.put("zom", "yos");
-
-        multiEquivsMap.put("ccq", new String[] {"rki", "ybd"});
-        multiEquivsMap.put("cmn", new String[] {"zh-guoyu", "zh-cmn"});
-        multiEquivsMap.put("drw", new String[] {"prs", "tnf"});
-        multiEquivsMap.put("gfx", new String[] {"vaj", "mwj", "oun"});
-        multiEquivsMap.put("hak", new String[] {"i-hak", "zh-hakka"});
-        multiEquivsMap.put("i-hak", new String[] {"hak", "zh-hakka"});
-        multiEquivsMap.put("mry", new String[] {"mst", "myt"});
-        multiEquivsMap.put("mst", new String[] {"mry", "myt"});
-        multiEquivsMap.put("mwj", new String[] {"vaj", "gfx", "oun"});
-        multiEquivsMap.put("myt", new String[] {"mry", "mst"});
-        multiEquivsMap.put("oun", new String[] {"vaj", "gfx", "mwj"});
-        multiEquivsMap.put("prs", new String[] {"drw", "tnf"});
-        multiEquivsMap.put("rki", new String[] {"ccq", "ybd"});
-        multiEquivsMap.put("tnf", new String[] {"prs", "drw"});
-        multiEquivsMap.put("vaj", new String[] {"gfx", "mwj", "oun"});
-        multiEquivsMap.put("ybd", new String[] {"rki", "ccq"});
-        multiEquivsMap.put("zh-cmn", new String[] {"cmn", "zh-guoyu"});
-        multiEquivsMap.put("zh-guoyu", new String[] {"cmn", "zh-cmn"});
-        multiEquivsMap.put("zh-hakka", new String[] {"hak", "i-hak"});
-
-        regionVariantEquivMap.put("-alalc97", "-heploc");
-        regionVariantEquivMap.put("-bu", "-mm");
-        regionVariantEquivMap.put("-cd", "-zr");
-        regionVariantEquivMap.put("-dd", "-de");
-        regionVariantEquivMap.put("-de", "-dd");
-        regionVariantEquivMap.put("-fr", "-fx");
-        regionVariantEquivMap.put("-fx", "-fr");
-        regionVariantEquivMap.put("-heploc", "-alalc97");
-        regionVariantEquivMap.put("-mm", "-bu");
-        regionVariantEquivMap.put("-tl", "-tp");
-        regionVariantEquivMap.put("-tp", "-tl");
-        regionVariantEquivMap.put("-yd", "-ye");
-        regionVariantEquivMap.put("-ye", "-yd");
-        regionVariantEquivMap.put("-zr", "-cd");
-    }
-
-}