/*
 ******************************************************************************
 * Copyright (C) 2004-2012 International Business Machines Corporation and    *
 * others. All Rights Reserved.                                               *
 ******************************************************************************
 */

package org.unicode.cldr.icu;

import static org.unicode.cldr.icu.ICUID.ICU_BOUNDARIES;
import static org.unicode.cldr.icu.ICUID.ICU_BRKITR_DATA;
import static org.unicode.cldr.icu.ICUID.ICU_DEPENDENCY;
import static org.unicode.cldr.icu.ICUID.ICU_DEPENDS;
import static org.unicode.cldr.icu.ICUID.ICU_DICTIONARIES;
import static org.unicode.cldr.icu.ICUID.ICU_DICTIONARY;
import static org.unicode.cldr.icu.ICUID.ICU_GRAPHEME;
import static org.unicode.cldr.icu.ICUID.ICU_LINE;
import static org.unicode.cldr.icu.ICUID.ICU_SENTENCE;
import static org.unicode.cldr.icu.ICUID.ICU_TITLE;
import static org.unicode.cldr.icu.ICUID.ICU_UCARULES;
import static org.unicode.cldr.icu.ICUID.ICU_UCA_RULES;
import static org.unicode.cldr.icu.ICUID.ICU_WORD;
import static org.unicode.cldr.icu.ICUID.ICU_XGC;

import java.io.File;
import java.io.FileOutputStream;
import java.io.FilenameFilter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.TreeMap;
import java.util.TreeSet;

import javax.xml.transform.TransformerException;

import org.unicode.cldr.ant.CLDRConverterTool;
import org.unicode.cldr.icu.ICUResourceWriter.Resource;
import org.unicode.cldr.icu.ICUResourceWriter.ResourceAlias;
import org.unicode.cldr.icu.ICUResourceWriter.ResourceArray;
import org.unicode.cldr.icu.ICUResourceWriter.ResourceInt;
import org.unicode.cldr.icu.ICUResourceWriter.ResourceIntVector;
import org.unicode.cldr.icu.ICUResourceWriter.ResourceProcess;
import org.unicode.cldr.icu.ICUResourceWriter.ResourceString;
import org.unicode.cldr.icu.ICUResourceWriter.ResourceTable;
import org.unicode.cldr.util.CLDRFile;
import org.unicode.cldr.util.Factory;
import org.unicode.cldr.util.LDMLUtilities;
import org.unicode.cldr.util.SupplementalDataInfo;
import org.unicode.cldr.util.XPathParts;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

import com.ibm.icu.dev.tool.UOption;
import com.ibm.icu.dev.util.ElapsedTimer;
import com.ibm.icu.impl.Utility;
import com.ibm.icu.text.UCharacterIterator;
import com.ibm.icu.text.UTF16;
import com.ibm.icu.text.UnicodeSet;
import com.ibm.icu.util.ULocale;

/**
 * Converts from LDML files (from the CLDR project) into ICU text or binary format.
 * 
 * @author Ram Viswanadha
 * @author Brian Rower - Added Binary file root and fixed memory leak - June 2008
 */
public class LDML2ICUConverter extends CLDRConverterTool {
    /**
     * These must be kept in sync with getOptions().
     */
    private static final int HELP1 = 0;
    private static final int HELP2 = 1;
    private static final int SOURCEDIR = 2;
    private static final int DESTDIR = 3;
    private static final int SPECIALSDIR = 4;
    private static final int WRITE_DEPRECATED = 5;
    private static final int WRITE_DRAFT = 6;
    private static final int SUPPLEMENTALDIR = 7;
    private static final int SUPPLEMENTALONLY = 8;
    private static final int METADATA_ONLY = 9;
    private static final int METAZONES_ONLY = 10;
    private static final int LIKELYSUBTAGS_ONLY = 11;
    private static final int PLURALS_ONLY = 12;
    private static final int NUMBERS_ONLY = 13;
    private static final int WRITE_BINARY = 14;
    private static final int VERBOSE = 15;
    private static final int ASCII_NUMBERS = 16;
    private static final int WINDOWSZONES_ONLY = 17;
    private static final int BCP47_KEY_TYPE = 18;
    private static final int OVERRIDE_DEPRECATED = 19;

    private static final UOption[] options = new UOption[] {
        UOption.HELP_H(),
        UOption.HELP_QUESTION_MARK(),
        UOption.SOURCEDIR(),
        UOption.DESTDIR(),
        UOption.create("specialsdir", 'p', UOption.REQUIRES_ARG),
        UOption.create("write-deprecated", 'w', UOption.REQUIRES_ARG),
        UOption.create("write-draft", 'f', UOption.NO_ARG),
        UOption.create("supplementaldir", 'm', UOption.REQUIRES_ARG),
        UOption.create("supplemental-only", 'l', UOption.NO_ARG),
        UOption.create("metadata-only", 'q', UOption.NO_ARG),
        UOption.create("metazones-only", 'z', UOption.NO_ARG),
        UOption.create("likely-only", 't', UOption.NO_ARG),
        UOption.create("plurals-only", 'r', UOption.NO_ARG),
        UOption.create("numbers-only", 'n', UOption.NO_ARG),
        UOption.create("write-binary", 'b', UOption.NO_ARG),
        UOption.VERBOSE(),
        UOption.create("ascii-numbers", 'a', UOption.NO_ARG),
        UOption.create("windowszones-only", 'i', UOption.NO_ARG),
        UOption.create("bcp47-keytype", 'k', UOption.REQUIRES_ARG),
        UOption.create("override", 'o', UOption.NO_ARG),
    };

    private String sourceDir;
    private String destDir;
    private String specialsDir;
    private String supplementalDir;
    private boolean writeDraft;
    private boolean writeBinary;
    private boolean asciiNumbers;
    private int startOfRange; // First character of a potential range.
    private int lastOfRange; // The (so far) last character of a potential range.
    private String lastStrengthSymbol = "";

    /**
     * Add comments on the item to indicate where fallbacks came from. Good for information, bad for diffs.
     */
    private static boolean verboseFallbackComments = false;

    private Document supplementalDoc;
    private SupplementalDataInfo supplementalDataInfo;

    private static final boolean DEBUG = false;

    // TODO: hard-coded file names for now
    private static final String supplementalDataFile = "supplementalData.xml";
    private static final String supplementalMetadataFile = "supplementalMetadata.xml";
    private static final String metaZonesFile = "metaZones.xml";
    private static final String likelySubtagsFile = "likelySubtags.xml";
    private static final String pluralsFile = "plurals.xml";
    private static final String numberingSystemsFile = "numberingSystems.xml";
    private static final String windowsZonesFile = "windowsZones.xml";

    private List<String> _xpathList = new ArrayList<String>();

    private ICULog log;
    private ICUWriter writer;
    private Factory cldrFactory;
    private Factory specialsFactory;

    private final LDMLServices serviceAdapter = new LDMLServices() {
        public Factory cldrFactory() {
            return LDML2ICUConverter.this.cldrFactory;
        }

        public CLDRFile getSpecialsFile(String locale) {
            return LDML2ICUConverter.this.getSpecialsFile(locale);
        }

        public boolean xpathListContains(String xpath) {
            return LDML2ICUConverter.this.xpathListContains(xpath);
        }

        public boolean isDraftStatusOverridable(String locName) {
            return LDML2ICUConverter.this.isDraftStatusOverridable(locName);
        }

        public Resource parseBundle(CLDRFile file) {
            return LDML2ICUConverter.this.parseBundle(file);
        }

        public SupplementalDataInfo getSupplementalDataInfo() {
            return LDML2ICUConverter.this.supplementalDataInfo;
        }
    };

    private Resource parseBundle(CLDRFile file) {
        LDML2ICUInputLocale fakeLocale = new LDML2ICUInputLocale(file, serviceAdapter);

        return parseBundle(fakeLocale);
    }

    public static void main(String[] args) {
        LDML2ICUConverter cnv = new LDML2ICUConverter();
        cnv.processArgs(args);
    }

    private void usage() {
        System.out.println(
            "\nUsage: LDML2ICUConverter [OPTIONS] [FILES]\nLDML2ICUConverter [OPTIONS] " +
                "-w [DIRECTORY]\n" +
                "This program is used to convert LDML files to ICU ResourceBundle TXT files.\n" +
                "Please refer to the following options. Options are not case sensitive.\n" +
                "Options:\n" +
                "-s or --sourcedir          source directory for files followed by path, " +
                "default is current directory.\n" +
                "-d or --destdir            destination directory, followed by the path, " +
                "default is current directory.\n" +
                "-p or --specialsdir        source directory for files containing special data " +
                "followed by the path. None if not specified\n" +
                "-f or --write-draft        write data for LDML nodes marked draft.\n" +
                "-m or --suplementaldir     source directory for finding the supplemental data.\n" +
                "-l or --supplemental-only  read " + supplementalDataFile + " file from the given " +
                "directory and write appropriate files to destination " +
                "directory\n" +
                "-q or --metadata-only     read " + supplementalMetadataFile + " file from the given " +
                "directory and write appropriate files to destination " +
                "directory\n" +
                "-t or --likely-only        read " + likelySubtagsFile + " file from the given directory " +
                "and write appropriate files to destination directory\n" +
                "-r or --plurals-only       read " + pluralsFile + " file from the given directory and " +
                "write appropriate files to destination directory\n" +
                "-z or --metazones-only     read " + metaZonesFile + " file from the given directory " +
                "and write appropriate files to destination directory\n" +
                "-i or --windowszones-only  read " + windowsZonesFile + " file from the given directory " +
                "and write appropriate files to destination directory\n" +
                "-n or --numbers-only       read " + numberingSystemsFile + " file from the given " +
                "directory and write appropriate files to destination " +
                "directory\n" +
                "-w [dir] or --write-deprecated [dir]   write data for deprecated locales. 'dir' is a " +
                "directory of source xml files.\n" +
                "-b or --write-binary       write data in binary (.res) files rather than .txt\n" +
                "-h or -? or --help         this usage text.\n" +
                "-v or --verbose            print out verbose output.\n" +
                "-a or --ascii-numbers      do ASCII-only numbers.\n" +
                "-k [dir] or --bcp47-keytype [dir]  write data for bcp47 key/type data.  'dir' is a " +
                "directory of bcp47 key/type data xml files.\n" +
                "example: org.unicode.cldr.icu.LDML2ICUConverter -s xxx -d yyy en.xml");
        System.exit(-1);
    }

    /**
     * First method called from the main method. Will check all the args and direct us from there. If not doing anything
     * special, just taking in XML files and writing TXT or Binary files, then will call processFile()
     */
    @Override
    public void processArgs(String[] args) {
        int remainingArgc = 0;
        // Reset options (they're static).
        for (int i = 0; i < options.length; i++) {
            options[i].doesOccur = false;
        }

        try {
            remainingArgc = UOption.parseArgs(args, options);
        } catch (Exception e) {
            // log is not set up yet, so do this manually
            System.out.println("ERROR: parsing args '" + e.getMessage() + "'");
            e.printStackTrace();
            usage();
        }
        if (args.length == 0 || options[HELP1].doesOccur || options[HELP2].doesOccur) {
            usage();
        }

        if (options[SOURCEDIR].doesOccur) {
            sourceDir = options[SOURCEDIR].value;
        }
        if (options[DESTDIR].doesOccur) {
            destDir = options[DESTDIR].value;
        } else {
            destDir = ".";
        }
        if (options[SPECIALSDIR].doesOccur) {
            specialsDir = options[SPECIALSDIR].value;
        }
        if (options[SUPPLEMENTALDIR].doesOccur) {
            supplementalDir = options[SUPPLEMENTALDIR].value;
        }
        if (options[WRITE_DRAFT].doesOccur) {
            writeDraft = true;
        }
        if (options[WRITE_BINARY].doesOccur) {
            writeBinary = true;
        }
        if (options[ASCII_NUMBERS].doesOccur) {
            asciiNumbers = true;
        }

        // Set up logging so we can use it here on out
        ICULog.Level level = DEBUG ? ICULog.Level.DEBUG : options[VERBOSE].doesOccur ? ICULog.Level.INFO
            : ICULog.Level.LOG;
        log = new ICULogImpl(level);

        // Set up resource splitting, if we have it
        ResourceSplitter splitter = null;
        if (splitInfos != null) {
            splitter = new ResourceSplitter(log, destDir + "/..", splitInfos);
        }

        // Set up writer
        writer = new ICUWriter(destDir, log, splitter);

        if (options[WRITE_DEPRECATED].doesOccur) {
            if (remainingArgc > 0) {
                log.error("-w takes one argument, the directory, and no other XML files.\n");
                usage();
                return; // NOTREACHED
            }
            String depDirName = options[WRITE_DEPRECATED].value;
            File depDir = new File(depDirName);
            if (!depDir.isDirectory()) {
                log.error(depDirName + " isn't a directory.");
                usage();
                return; // NOTREACHED
            }
            // parse for draft status?
            File dstDir = new File(destDir);
            boolean parseDraft = !writeDraft;
            boolean parseSubLocale = sourceDir.indexOf("collation") > -1;
            Set<String> validLocales = getIncludedLocales();
            new DeprecatedConverter(log, serviceAdapter, depDir, dstDir).write(writer, aliasDeprecates, parseDraft,
                parseSubLocale, validLocales);
            return;
        }

        if (supplementalDir != null) {
            supplementalDoc = createSupplementalDoc();
            supplementalDataInfo = SupplementalDataInfo.getInstance(supplementalDir);
        }

        boolean override = options[OVERRIDE_DEPRECATED].doesOccur;
        UOption curOption;
        if ((curOption = options[SUPPLEMENTALONLY]).doesOccur) {
            showDeprecatedError(curOption.longName, override);
            // TODO(dougfelt): this assumes there is no data in list before this point. check.
            // addToXPathList(supplementalDoc);
            setXPathList(makeXPathList(supplementalDoc));

            // Create the Resource linked list which will hold the
            // data after parsing
            // The assumption here is that the top
            // level resource is always a table in ICU
            log.log("Processing " + supplementalDataFile);
            Resource res = new SupplementalDataParser(log, serviceAdapter).parse(supplementalDoc, supplementalDataFile);

            if (res != null && ((ResourceTable) res).first != null) {
                writer.writeResource(res, supplementalDataFile);
            }
        } else if ((curOption = options[METADATA_ONLY]).doesOccur) {
            showDeprecatedError(curOption.longName, override);
            new SupplementalMetadataConverter(log, supplementalMetadataFile, supplementalDir).convert(writer);
        } else if ((curOption = options[METAZONES_ONLY]).doesOccur) {
            showDeprecatedError(curOption.longName, override);
            new MetaZonesConverter(log, metaZonesFile, supplementalDir).convert(writer);
        } else if ((curOption = options[WINDOWSZONES_ONLY]).doesOccur) {
            showDeprecatedError(curOption.longName, override);
            new WindowsZonesConverter(log, windowsZonesFile, supplementalDir).convert(writer);
        } else if ((curOption = options[LIKELYSUBTAGS_ONLY]).doesOccur) {
            showDeprecatedError(curOption.longName, override);
            new LikelySubtagsConverter(log, likelySubtagsFile, supplementalDir).convert(writer);
        } else if ((curOption = options[PLURALS_ONLY]).doesOccur) {
            showDeprecatedError(curOption.longName, override);
            new PluralsConverter(log, pluralsFile, supplementalDir).convert(writer);
        } else if ((curOption = options[NUMBERS_ONLY]).doesOccur) {
            showDeprecatedError(curOption.longName, override);
            new NumberingSystemsConverter(log, numberingSystemsFile, supplementalDir).convert(writer);
        } else if ((curOption = options[BCP47_KEY_TYPE]).doesOccur) {
            showDeprecatedError(curOption.longName, override);
            if (remainingArgc > 0) {
                log.error("-k takes one argument, the bcp47 key/type data directory, no others.\n");
                usage();
                return;
            }
            String dirstr = options[BCP47_KEY_TYPE].value;
            File bcp47Dir = new File(dirstr);
            if (!bcp47Dir.isDirectory()) {
                log.error(dirstr + " isn't a directory.");
                usage();
                return;
            }
            log.log("Processing " + bcp47Dir.getAbsolutePath());
            // timezone type data will be externalized
            String[] externalized = new String[] { "timezone" };
            new KeyTypeDataConverter(log, dirstr, externalized).convert(writer);
        } else {
            System.err.println("WARNING: generation of locale data is performed by NewLdml2IcuConverter now. " +
                "This option should only be used to generate data not from common/main!");
            spinUpFactories(sourceDir, specialsDir);
            if (getLocalesMap() != null && getLocalesMap().size() > 0) {
                for (Iterator<String> iter = getLocalesMap().keySet().iterator(); iter.hasNext();) {
                    String fileName = iter.next();
                    String draft = getLocalesMap().get(fileName);
                    if (draft != null && !draft.equals("false")) {
                        writeDraft = true;
                    } else {
                        writeDraft = false;
                    }
                    processFile(fileName);
                }
            } else if (remainingArgc > 0) {
                for (int i = 0; i < remainingArgc; i++) {
                    if (args[i].equals("*")) {
                        for (String file : new File(sourceDir).list()) {
                            if (!file.endsWith(".xml")) {
                                continue;
                            }
                            processFile(file);
                        }
                    } else {
                        processFile(args[i]);
                    }
                }
            } else {
                log.error("No files specified !");
            }
        }
    }

    /**
     * Shows an error that the specified option has been deprecated
     * 
     * @param option
     * @param useOverride
     *            true if the conversion should proceed anyway
     */
    private void showDeprecatedError(String option, boolean useOverride) {
        if (useOverride) {
            System.err.println("Warning: usage of --" + option + " is deprecated. Use NewLdml2ICuConverter instead.");
        } else {
            throw new UnsupportedOperationException(
                "Usage of --" + option + " is deprecated, use NewLdml2IcuConverter instead." +
                    " To force this option to run anyway, use the argument --override (-o).");
        }
    }

    /**
     * Serves to narrow the interface to InputLocale so that it can be separated from LDML2ICUConverter.
     */
    static interface LDMLServices {
        /** Returns the cldr factory, or null */
        Factory cldrFactory();

        /** Return a specials file for the locale */
        CLDRFile getSpecialsFile(String locale);

        /** Returns true if xpathlist contains the xpath */
        boolean xpathListContains(String xpath);

        // for DeprecatedConverter
        /** Returns true if draft status is overridable. */
        boolean isDraftStatusOverridable(String locName);

        /** Parses the CLDRFile, with the given status string */
        Resource parseBundle(CLDRFile file);

        // for SupplementalDataParser
        SupplementalDataInfo getSupplementalDataInfo();
    }

    private Document getSpecialsDoc(String locName) {
        if (specialsDir != null) {
            String locNameXml = locName + ".xml";
            String icuSpecialFile = specialsDir + "/" + locNameXml;
            if (new File(icuSpecialFile).exists()) {
                return LDMLUtilities.parseAndResolveAliases(locNameXml, specialsDir, false, false);
            }

            if (ULocale.getCountry(locName).length() == 0) {
                log.warning("ICU special not found for language-locale \"" + locName + "\"");
                // System.exit(-1);
            } else {
                log.warning("ICU special file not found, continuing.");
            }
        }

        return null;
    }

    private DocumentPair getDocumentPair(String locale) {
        String localeXml = locale + ".xml";
        String xmlfileName = LDMLUtilities.getFullPath(LDMLUtilities.XML, localeXml, sourceDir);

        Document doc = LDMLUtilities.parse(xmlfileName, false);
        Document specials = getSpecialsDoc(locale);
        if (specials != null) {
            StringBuilder xpath = new StringBuilder();
            doc = (Document) LDMLUtilities.mergeLDMLDocuments(doc, specials, xpath, null/* unused */,
                null /* unused */, false, true);
        }

        Document fullyResolvedDoc = null;
        if (!LDMLUtilities.isLocaleAlias(doc)) {
            fullyResolvedDoc = LDMLUtilities.getFullyResolvedLDML(sourceDir, localeXml, false, false, false, false);
        }

        if (writeDraft == false && isDraftStatusOverridable(locale)) {
            log.info("Overriding draft status, and including: " + locale);
            writeDraft = true;
            // TODO: save/restore writeDraft
        }

        setXPathList(makeXPathList(doc, fullyResolvedDoc, locale));

        return new DocumentPair(doc, fullyResolvedDoc);
    }

    private void setXPathList(List<String> xpathList) {
        _xpathList = xpathList;
    }

    private CLDRFile getSpecialsFile(String locale) {
        if (specialsFactory != null) {
            String icuSpecialFile = specialsDir + "/" + locale + ".xml";
            if (new File(icuSpecialFile).exists()) {
                log.info("Parsing ICU specials from: " + icuSpecialFile);
                return specialsFactory.make(locale, false);
            }
        }
        return null;
    }

    /*
     * Sets some stuff up and calls createResourceBundle
     */
    private void processFile(String fileName) {
        // add 1 below to skip past the separator
        int lastIndex = fileName.lastIndexOf(File.separator, fileName.length()) + 1;
        fileName = fileName.substring(lastIndex, fileName.length());
        String xmlfileName = LDMLUtilities.getFullPath(LDMLUtilities.XML, fileName, sourceDir);

        String locName = fileName;
        int index = locName.indexOf(".xml");
        if (index > -1) {
            locName = locName.substring(0, index);
        }

        log.setStatus(locName);
        log.log("Processing " + xmlfileName);
        ElapsedTimer timer = new ElapsedTimer();

        LDML2ICUInputLocale loc = new LDML2ICUInputLocale(locName, serviceAdapter);

        if (writeDraft == false && isDraftStatusOverridable(locName)) {
            log.info("Overriding draft status, and including: " + locName);
            writeDraft = true;
            // TODO: save/restore writeDraft
        }

        createResourceBundle(loc);

        log.info("Elapsed time: " + timer + "s");
    }

    private void spinUpFactories(String factoryDir, String specialsDir) {
        if (cldrFactory == null) {
            log.info("* Spinning up CLDRFactory on " + factoryDir);
            cldrFactory = Factory.make(factoryDir, ".*");
            if (specialsDir != null) {
                log.info("* Spinning up specials CLDRFactory on " + specialsDir);
                specialsFactory = Factory.make(specialsDir, ".*");
            }
        }
    }

    private static List<String> makeXPathList(Document doc) {
        List<String> xpathList = new ArrayList<String>();
        addToXPathList(xpathList, doc);
        return xpathList;
    }

    private static void addToXPathList(List<String> xpathList, Document doc) {
        addToXPathList(xpathList, doc, (StringBuilder) null);
    }

    private static void addToXPathList(List<String> xpathList, Node node, StringBuilder xpath) {
        if (xpath == null) {
            xpath = new StringBuilder("/");
        }
        for (Node child = node.getFirstChild(); child != null; child = child.getNextSibling()) {
            if (child.getNodeType() != Node.ELEMENT_NODE) {
                continue;
            }
            String name = child.getNodeName();
            int savedLength = xpath.length();
            xpath.append("/");
            xpath.append(name);
            LDMLUtilities.appendXPathAttribute(child, xpath, false, false);
            if (name.equals("collation")) {
                // special case for collation: draft attribute is set on the top level element
                xpathList.add(xpath.toString());
            } else if (LDMLUtilities.areChildrenElementNodes(child)) {
                addToXPathList(xpathList, child, xpath);
            } else {
                xpathList.add(xpath.toString());
            }
            xpath.delete(savedLength, xpath.length());
        }
    }

    private List<String> makeXPathList(LDML2ICUInputLocale loc) {
        String locName = loc.getLocale();
        boolean exemplarsContainAZ = exemplarsContainAZ(loc);

        List<String> xpathList = new ArrayList<String>();
        for (Iterator<String> iter = loc.getFile().iterator(); iter.hasNext();) {
            xpathList.add(loc.getFile().getFullXPath(iter.next()));
        }
        addToXPathList(xpathList, supplementalDoc);
        Collections.sort(xpathList);

        return computeConvertibleXPathList(xpathList, exemplarsContainAZ, locName);
    }

    private List<String> computeConvertibleXPathList(List<String> xpathList, boolean exemplarsContainAZ, String locName) {
        dumpXPathList(xpathList, "Before computeConvertibleXPaths", "log1.txt");
        xpathList = computeConvertibleXPaths(xpathList, exemplarsContainAZ, locName, supplementalDir);
        dumpXPathList(xpathList, "After computeConvertibleXPaths", "log2.txt");
        return xpathList;
    }

    private void addSpaceForDebug(StringBuilder sb) {
        if (DEBUG) {
            sb.append(" ");
        }
    }

    private static void dumpXPathList(List<String> xpathList, String msg, String fname) {
        if (DEBUG) {
            try {
                PrintWriter log = new PrintWriter(new FileOutputStream(fname));
                log.println("BEGIN: " + msg);
                for (String xpath : xpathList) {
                    log.println(xpath);
                }
                log.println("END: " + msg);
                log.flush();
                log.close();
            } catch (Exception ex) {
                // debugging, throw away.
            }
        }
    }

    private List<String> makeXPathList(Document doc, Document fullyResolvedDoc, String locName) {
        boolean exemplarsContainAZ = exemplarsContainAZ(fullyResolvedDoc);

        List<String> xpathList = new ArrayList<String>();
        addToXPathList(xpathList, doc);
        addToXPathList(xpathList, supplementalDoc);
        Collections.sort(xpathList);

        return computeConvertibleXPathList(xpathList, exemplarsContainAZ, locName);
    }

    private static boolean exemplarsContainAZ(Document fullyResolvedDoc) {
        if (fullyResolvedDoc == null) {
            return false;
        }

        Node node = LDMLUtilities.getNode(fullyResolvedDoc, "//ldml/characters/exemplarCharacters");
        if (node == null) {
            return false;
        }

        String ex = LDMLUtilities.getNodeValue(node);
        UnicodeSet set = new UnicodeSet(ex);
        return set.containsAll(new UnicodeSet("[A-Z a-z]"));
    }

    private static boolean exemplarsContainAZ(LDML2ICUInputLocale loc) {
        if (loc == null) {
            return false;
        }

        UnicodeSet set = loc.getFile().getExemplarSet("", CLDRFile.WinningChoice.WINNING);
        if (set == null) {
            set = loc.resolved().getExemplarSet("", CLDRFile.WinningChoice.WINNING);
            if (set == null) {
                return false;
            }
        }

        return set.containsAll(new UnicodeSet("[A-Z a-z]"));
    }

    private Document createSupplementalDoc() {
        FilenameFilter filter = new FilenameFilter() {
            public boolean accept(File dir, String name) {
                if (name.matches(".*\\.xml") && !name.equals("characters.xml") && !name.equals(metaZonesFile)
                    && !name.equals(likelySubtagsFile) && !name.equals(windowsZonesFile)) {
                    return true;
                }
                return false;
            }
        };

        File myDir = new File(supplementalDir);
        String[] files = myDir.list(filter);
        if (files == null) {
            String canonicalPath;
            try {
                canonicalPath = myDir.getCanonicalPath();
            } catch (IOException e) {
                canonicalPath = e.getMessage();
            }
            log.error("Supplemental files are missing " + canonicalPath);
            System.exit(-1);
        }

        Document doc = null;
        for (int i = 0; i < files.length; i++) {
            try {
                log.info("Parsing document " + files[i]);
                String fileName = myDir.getAbsolutePath() + File.separator + files[i];
                Document child = LDMLUtilities.parse(fileName, false);
                if (doc == null) {
                    doc = child;
                    continue;
                }
                StringBuilder xpath = new StringBuilder();
                LDMLUtilities.mergeLDMLDocuments(doc, child, xpath, files[i], myDir.getAbsolutePath(), true, false);
            } catch (Throwable se) {
                log.error("Parsing: " + files[i] + " " + se.toString(), se);
                System.exit(1);
            }
        }

        return doc;
    }

    /*
     * Create the Resource tree, and then Call writeResource or LDML2ICUBinaryWriter.writeBinaryFile(), whichever is
     * appropriate
     */
    private void createResourceBundle(LDML2ICUInputLocale loc) {
        try {
            // calculate the list of vettable xpaths.
            try {
                setXPathList(makeXPathList(loc));
            } catch (RuntimeException e) {
                throw new IllegalArgumentException("Can't make XPathList for: " + loc).initCause(e);
            }

            // Create the Resource linked list which will hold the
            // data after parsing
            // The assumption here is that the top
            // level resource is always a table in ICU
            Resource res = parseBundle(loc);

            if (res != null && ((ResourceTable) res).first != null) {
                if (loc.getSpecialsFile() != null) {
                    String dir = specialsDir.replace('\\', '/');
                    dir = "<path>" + dir.substring(dir.indexOf("/xml"), dir.length());
                    String locName = loc.getLocale();
                    if (res.comment == null) {
                        res.comment = " ICU <specials> source: " + dir + "/" + locName + ".xml";
                    } else {
                        res.comment = res.comment + " ICU <specials> source: " + dir + "/" + locName + ".xml";
                    }
                }

                // write out the bundle depending on if writing Binary or txt
                if (writeBinary) {
                    LDML2ICUBinaryWriter.writeBinaryFile(res, destDir, loc.getLocale());
                } else {
                    String sourceInfo = sourceDir.replace('\\', '/') + "/" + loc.getLocale() + ".xml";

                    writer.writeResource(res, sourceInfo);
                }
            }
            // writeAliasedResource();
        } catch (Throwable se) {
            log.error("Parsing and writing " + loc.getLocale() + " " + se.toString(), se);
            System.exit(1);
        }
    }

    private static final String LOCALE_SCRIPT = "LocaleScript";
    private static final String NUMBER_ELEMENTS = "NumberElements";
    private static final String AM_PM_MARKERS = "AmPmMarkers";
    private static final String DTP = "DateTimePatterns";

    private static Map<String, String> keyNameMap = new TreeMap<String, String>();
    private static final Map<String, String> deprecatedTerritories = new TreeMap<String, String>();
    // TODO: should be a set?
    static {
        keyNameMap.put("days", "dayNames");
        keyNameMap.put("months", "monthNames");
        keyNameMap.put("monthPatterns", "monthPatterns");
        keyNameMap.put("territories", "Countries");
        keyNameMap.put("languages", "Languages");
        keyNameMap.put("languagesShort", "LanguagesShort");
        keyNameMap.put("currencies", "Currencies");
        keyNameMap.put("variants", "Variants");
        keyNameMap.put("scripts", "Scripts");
        keyNameMap.put("scriptsStandAlone", "Scripts%stand-alone");
        keyNameMap.put("keys", "Keys");
        keyNameMap.put("types", "Types");
        keyNameMap.put("version", "Version");
        keyNameMap.put("exemplarCharacters", "ExemplarCharacters");
        keyNameMap.put("auxiliary", "AuxExemplarCharacters");
        keyNameMap.put("index", "ExemplarCharactersIndex");
        keyNameMap.put("punctuation", "ExemplarCharactersPunctuation");
        keyNameMap.put("timeZoneNames", "zoneStrings");
        // keyNameMap.put("localizedPatternChars", "localPatternChars");
        keyNameMap.put("paperSize", "PaperSize");
        keyNameMap.put("measurementSystem", "MeasurementSystem");
        keyNameMap.put("measurementSystemNames", "measurementSystemNames");
        keyNameMap.put("codePatterns", "codePatterns");
        keyNameMap.put("fractions", "CurrencyData");
        keyNameMap.put("quarters", "quarters");
        keyNameMap.put("dayPeriods", "dayPeriods");
        keyNameMap.put("displayName", "dn");
        keyNameMap.put("icu:breakDictionaryData", "BreakDictionaryData");

        deprecatedTerritories.put("CT", "");
        deprecatedTerritories.put("DD", "");
        deprecatedTerritories.put("FQ", "");
        deprecatedTerritories.put("FX", "");
        deprecatedTerritories.put("JT", "");
        deprecatedTerritories.put("MI", "");
        deprecatedTerritories.put("NQ", "");
        deprecatedTerritories.put("NT", "");
        deprecatedTerritories.put("PC", "");
        deprecatedTerritories.put("PU", "");
        deprecatedTerritories.put("PZ", "");
        deprecatedTerritories.put("SU", "");
        deprecatedTerritories.put("VD", "");
        deprecatedTerritories.put("WK", "");
        deprecatedTerritories.put("YD", "");
        // TODO: "FX", "RO", "TP", "ZR", /* obsolete country codes */
    }

    public static ResourceArray getResourceArray(String str, String name) {
        if (str != null) {
            String[] strs = str.split("\\s+");
            ResourceArray arr = new ResourceArray();
            arr.name = name;
            Resource curr = null;
            for (int i = 0; i < strs.length; i++) {
                ResourceString string = new ResourceString();
                string.val = strs[i];
                if (curr == null) {
                    curr = arr.first = string;
                } else {
                    curr.next = string;
                    curr = curr.next;
                }
            }

            return arr;
        }
        return null;
    }

    public static String getICUAlias(String tzid) {
        // This function is used to return the compatibility aliases for ICU.
        // It should match the ICUZONES file in ICU4C source/tools/tzcode/icuzones.
        // Note that since we don't expect this to change AT ALL over time, it is
        // easier to just hard code the information here. We only include those
        // aliases that are NOT in CLDR.

        if (tzid.equals("Australia/Darwin")) return ("ACT");
        if (tzid.equals("Australia/Sydney")) return ("AET");
        if (tzid.equals("America/Argentina/Buenos_Aires")) return ("AGT");
        if (tzid.equals("Africa/Cairo")) return ("ART");
        if (tzid.equals("America/Anchorage")) return ("AST");
        if (tzid.equals("America/Sao_Paulo")) return ("BET");
        if (tzid.equals("Asia/Dhaka")) return ("BST");
        if (tzid.equals("Africa/Harare")) return ("CAT");
        if (tzid.equals("America/St_Johns")) return ("CNT");
        if (tzid.equals("America/Chicago")) return ("CST");
        if (tzid.equals("Asia/Shanghai")) return ("CTT");
        if (tzid.equals("Africa/Addis_Ababa")) return ("EAT");
        if (tzid.equals("Europe/Paris")) return ("ECT");
        if (tzid.equals("America/Indianapolis")) return ("IET");
        if (tzid.equals("Asia/Calcutta")) return ("IST");
        if (tzid.equals("Asia/Tokyo")) return ("JST");
        if (tzid.equals("Pacific/Apia")) return ("MIT");
        if (tzid.equals("Asia/Yerevan")) return ("NET");
        if (tzid.equals("Pacific/Auckland")) return ("NST");
        if (tzid.equals("Asia/Karachi")) return ("PLT");
        if (tzid.equals("America/Phoenix")) return ("PNT");
        if (tzid.equals("America/Puerto_Rico")) return ("PRT");
        if (tzid.equals("America/Los_Angeles")) return ("PST");
        if (tzid.equals("Pacific/Guadalcanal")) return ("SST");
        if (tzid.equals("Asia/Saigon")) return ("VST");

        return null;
    }

    private String ldmlVersion_ = null;

    private String getLdmlVersion() {
        return ldmlVersion_;
    }

    private void setLdmlVersion(String version) {
        ldmlVersion_ = version;
    }

    private Resource parseBundle(LDML2ICUInputLocale loc) {
        final boolean SEPARATE_LDN = false;

        setLdmlVersion("0.0");

        String localeID = loc.getFile().getLocaleID();

        ResourceTable mainTable = new ResourceTable();
        mainTable.name = localeID;

        // handle identity
        Resource version = parseIdentity(loc);
        if (version != null) {
            mainTable.appendContents(version);
        }

        // handle alias, early exit
        if (loc.getFile().isHere("//ldml/alias")) {
            Resource res = ICUResourceWriter.createString("\"%%ALIAS\"",
                loc.getBasicAttributeValue("//ldml/alias", LDMLConstants.SOURCE));
            mainTable.appendContents(res);
            return mainTable;
        }

        // Short term workaround to skip adding %%Parent in collation data.
        // See CldrBug#3589 and IcuBug#8425 - yoshito
        boolean isCollationRes = false;
        Iterator<String> xpathItr = loc.getFile().iterator("//ldml/collations");
        if (xpathItr.hasNext()) {
            isCollationRes = true;
        }

        // If this locale has an explicit parent, then put that into the resource file
        if (supplementalDataInfo != null && supplementalDataInfo.getExplicitParentLocale(localeID) != null
            && !isCollationRes) {
            ResourceString pl = new ResourceString();
            pl.name = "%%Parent";
            pl.val = supplementalDataInfo.getExplicitParentLocale(localeID);
            mainTable.appendContents(pl);
        }

        // Now, loop over other stuff.
        String stuff[] = {
            // Following two resources are handled above
            // LDMLConstants.ALIAS,
            // LDMLConstants.IDENTITY,

            LDMLConstants.SPECIAL, LDMLConstants.LDN, LDMLConstants.LAYOUT, LDMLConstants.CONTEXT_TRANSFORMS,
            // LDMLConstants.FALLBACK
            LDMLConstants.CHARACTERS, LDMLConstants.DELIMITERS, LDMLConstants.DATES,
            LDMLConstants.NUMBERS,
            // LDMLConstants.POSIX,
            // LDMLConstants.SEGMENTATIONS,
            LDMLConstants.REFERENCES, LDMLConstants.RBNF, LDMLConstants.COLLATIONS, LDMLConstants.UNITS,
            LDMLConstants.UNITS_SHORT,
            LDMLConstants.LIST_PART
        };

        for (String name : stuff) {
            String xpath = "//ldml/" + name;
            log.info(name + " ");

            Resource res = null;
            if (name.equals(LDMLConstants.SPECIAL)) {
                res = parseSpecialElements(loc, xpath);
            } else if (!SEPARATE_LDN && name.equals(LDMLConstants.LDN)) {
                res = parseLocaleDisplayNames(loc);
            } else if (name.equals(LDMLConstants.LAYOUT)) {
                res = parseLayout(loc, xpath);
            } else if (name.equals(LDMLConstants.CONTEXT_TRANSFORMS)) {
                res = parseContextTransforms(loc, xpath);
            } else if (name.equals(LDMLConstants.FALLBACK)) {
                // ignored
            } else if (name.equals(LDMLConstants.CHARACTERS)) {
                res = parseCharacters(loc, xpath);
            } else if (name.equals(LDMLConstants.DELIMITERS)) {
                res = parseDelimiters(loc, xpath);
            } else if (name.equals(LDMLConstants.LIST_PART)) {
                res = parseLists(loc, xpath);
            } else if (name.equals(LDMLConstants.DATES)) {
                res = parseDates(loc, xpath);
            } else if (name.equals(LDMLConstants.NUMBERS)) {
                res = parseNumbers(loc, xpath);
            } else if (name.equals(LDMLConstants.COLLATIONS)) {
                if (sourceDir.indexOf("coll") > 0) {
                    res = parseCollations(loc, xpath);
                }
            } else if (name.equals(LDMLConstants.POSIX)) {
                // res = parsePosix(loc, xpath);
            } else if (name.equals(LDMLConstants.RBNF)) {
                res = parseRBNF(loc, xpath);
            } else if (name.equals(LDMLConstants.SEGMENTATIONS)) {
                // TODO: FIX ME with parseSegmentations();
                if (DEBUG) {
                    log.warning("Not producing resource for " + xpath.toString());
                }
            } else if (name.indexOf("icu:") > -1 || name.indexOf("openOffice:") > -1) {
                // TODO: these are specials .. ignore for now ... figure out
                // what to do later
            } else if (name.equals(LDMLConstants.REFERENCES)) {
                // TODO: This is special documentation... ignore for now
                if (DEBUG) {
                    log.warning("Not producing resource for " + xpath.toString());
                }
            } else if (name.equals(LDMLConstants.UNITS)) {
                res = parseUnits(loc, name, null);
            } else if (name.equals(LDMLConstants.UNITS_SHORT)) {
                res = parseUnits(loc, name, LDMLConstants.SHORT);
            } else {
                log.error("Encountered unknown <" + "//ldml" + "> subelement: " + name);
                System.exit(-1);
            }

            if (res != null) { // have an item
                mainTable.appendContents(res);
            }
        }

        if ((sourceDir.endsWith("main") || sourceDir.indexOf("main/") > 0) /* && !LDMLUtilities.isLocaleAlias(root) */) {
            String locName = loc.getLocale();
            String country = ULocale.getCountry(locName);
            String variant = ULocale.getVariant(locName);
            boolean isRoot = locName.equals("root");

            Resource temp = parseMeasurement(country, variant, isRoot);
            if (temp != null) {
                mainTable.appendContents(temp);
            }
        }

        log.info("");

        if (supplementalDoc != null) {
            /*
             * TODO: comment this out for now. We shall revisit when we have information on how to present the script
             * data with new API Resource res = parseLocaleScript(supplementalDoc); if (res != null) { if (current ==
             * null) { table.first = res; current = findLast(res); }else{ current.next = res; current = findLast(res); }
             * res = null; }
             * 
             * Resource res = parseMetaData(supplementalDoc);
             */
        }

        return mainTable;
    }

    /**
     * Higher convenience level than parseAliasResource Check to see if there is an alias at xpath + "/alias", if so,
     * create & return it.
     */
    private Resource getAliasResource(LDML2ICUInputLocale loc, String xpath) {
        String name = XPPUtil.getXpathName(xpath);
        String aliasPath = xpath + "/alias";
        Resource aRes = parseAliasResource(loc, aliasPath);
        if (aRes != null) {
            aRes.name = name;
        }

        return aRes;
    }

    private Resource parseAliasResource(LDML2ICUInputLocale loc, String xpath) {
        String source = loc.getBasicAttributeValue(xpath, LDMLConstants.SOURCE);
        String path = loc.getBasicAttributeValue(xpath, LDMLConstants.PATH);
        if (source == null && path == null) {
            if (!loc.getFile().isHere(xpath)) {
                return null;
            }
        }

        try {
            ResourceAlias alias = new ResourceAlias();
            String basePath = xpath.replaceAll("/alias.*$", "");
            String fullPath = loc.getFile().getFullXPath(xpath).replaceAll("/alias.*$", "");
            if (path != null) {
                path = path.replaceAll("='", "=\"").replaceAll("']", "\"]");
            }

            String val = LDMLUtilities.convertXPath2ICU(source, path, basePath, fullPath);
            alias.val = val;
            alias.name = basePath;
            return alias;
        } catch (TransformerException ex) {
            log.error("Could not compile XPATH for source: " + source + " path: " + path + " Node: " + xpath, ex);
            System.exit(-1);
        }

        return null;
        // TODO update when XPATH is integrated into LDML
    }

    private Resource parseAliasResource(Node node, StringBuilder xpath) {
        return parseAliasResource(node, xpath, false);
    }

    private Resource parseAliasResource(Node node, StringBuilder xpath, boolean isCollation) {
        int saveLength = xpath.length();
        getXPath(node, xpath);
        try {
            if (node != null && (isCollation || !isNodeNotConvertible(node, xpath))) {
                ResourceAlias alias = new ResourceAlias();
                xpath.setLength(saveLength);
                String val = LDMLUtilities.convertXPath2ICU(node, null, xpath);
                alias.val = val;
                alias.name = node.getParentNode().getNodeName();
                xpath.setLength(saveLength);
                return alias;
            }
        } catch (TransformerException ex) {
            log.error(
                "Could not compile XPATH for" + " source:  "
                    + LDMLUtilities.getAttributeValue(node, LDMLConstants.SOURCE) + " path: "
                    + LDMLUtilities.getAttributeValue(node, LDMLConstants.PATH) + " Node: "
                    + node.getParentNode().getNodeName(), ex);
            System.exit(-1);
        }

        xpath.setLength(saveLength);
        // TODO update when XPATH is integrated into LDML
        return null;
    }

    private Resource parseIdentity(LDML2ICUInputLocale loc) {
        // version #
        String verPath = "//ldml/" + LDMLConstants.IDENTITY + "/" + LDMLConstants.VERSION;
        String version = XPPUtil.getBasicAttributeValue(loc.getFile(), verPath, LDMLConstants.NUMBER);
        if (loc.resolved() != null) {
            String version2 = XPPUtil.getBasicAttributeValue(loc.resolved(), verPath, LDMLConstants.NUMBER);
            String foundIn = loc.resolved().getSourceLocaleID(verPath, null);
            if (foundIn != null && foundIn.equals(loc.getLocale()) && version2 != null) {
                // make sure it is in our 'original' locale.
                version = version2; // use version from 'resolved' -
            }
        }

        if (version == null) {
            log.warning("No version #??");
            return null;
        }

        version = version.replaceAll(".*?Revision: (.*?) .*", "$1");

        int intversion;
        try {
            intversion = Integer.valueOf(version).intValue();
        } catch (NumberFormatException ex) {
            intversion = 1;
        }

        if (intversion > 1) { // This is a SVN changeset number
            int x = intversion / 10000;
            int y = (intversion - 10000 * x) / 100;
            int z = (intversion - 10000 * x) % 100;
            version = "2." + Integer.toString(x) + "." + Integer.toString(y) + "." + Integer.toString(z);
        }

        return ICUResourceWriter.createString(keyNameMap.get(LDMLConstants.VERSION), version);
    }

    private static final String[] registeredKeys = new String[] { "collation", "calendar", "currency", "numbers" };

    private Resource parseLocaleDisplayNames(LDML2ICUInputLocale loc) {
        Resource first = null;
        Resource current = null;

        Resource res = null;
        String stuff[] = { LDMLConstants.LANGUAGES, LDMLConstants.SCRIPTS, LDMLConstants.TERRITORIES,
            LDMLConstants.KEYS, LDMLConstants.VARIANTS, LDMLConstants.MSNS, LDMLConstants.TYPES,
            LDMLConstants.ALIAS, LDMLConstants.CODE_PATTERNS, LDMLConstants.LOCALEDISPLAYPATTERN,
            LDMLConstants.LANGUAGES_SHORT, LDMLConstants.SCRIPTS_STANDALONE };

        for (String name : stuff) {
            if (name.equals(LDMLConstants.LANGUAGES) || name.equals(LDMLConstants.SCRIPTS)
                || name.equals(LDMLConstants.TERRITORIES) || name.equals(LDMLConstants.KEYS)
                || name.equals(LDMLConstants.VARIANTS) || name.equals(LDMLConstants.MSNS)
                || name.equals(LDMLConstants.CODE_PATTERNS)) {
                res = parseList(loc, name);
            } else if (name.equals(LDMLConstants.TYPES)) {
                res = parseDisplayTypes(loc, name);
            } else if (name.equals(LDMLConstants.LOCALEDISPLAYPATTERN)) {
                res = parseLocaleDisplayPattern(loc);
            } else if (name.equals(LDMLConstants.ALIAS)) {
                // res = parseAliasResource(loc, name);
                // TODO: parseAliasResource - these are different types in ICU, can't just alias them all
            } else if (name.equals(LDMLConstants.LANGUAGES_SHORT)) {
                res = parseListAlt(loc, LDMLConstants.LANGUAGES, name, LDMLConstants.SHORT);
            } else if (name.equals(LDMLConstants.SCRIPTS_STANDALONE)) {
                res = parseListAlt(loc, LDMLConstants.SCRIPTS, name, LDMLConstants.STAND_ALONE);
            } else {
                log.error("Unknown element found: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    current = first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
                res = null;
            }
        }

        return first;
    }

    private Resource parseDisplayTypes(LDML2ICUInputLocale loc, String name) {
        log.setStatus(loc.getLocale());
        StringBuilder myXpath = new StringBuilder();
        myXpath.append("//ldml/localeDisplayNames/types");
        ResourceTable table = new ResourceTable();
        table.name = keyNameMap.get(LDMLConstants.TYPES);
        Resource alias = null;

        // if the whole thing is an alias
        if ((alias = getAliasResource(loc, myXpath.toString())) != null) {
            alias.name = table.name;
            return alias;
        }

        for (int i = 0; i < registeredKeys.length; i++) {
            ResourceTable subTable = new ResourceTable();
            subTable.name = registeredKeys[i];
            for (Iterator<String> iter = loc.getFile().iterator(myXpath.toString()); iter.hasNext();) {
                String xpath = iter.next();
                String name2 = XPPUtil.getXpathName(xpath);
                if (!LDMLConstants.TYPE.equals(name2)) {
                    log.error("Encountered unknown <" + xpath + "> subelement: " + name2 + " while looking for "
                        + LDMLConstants.TYPE);
                    System.exit(-1);
                }

                String key = XPPUtil.getAttributeValue(xpath, LDMLConstants.KEY);
                if (!registeredKeys[i].equals(key)) {
                    continue;
                }

                String type = XPPUtil.getAttributeValue(xpath, LDMLConstants.TYPE);
                if (loc.isPathNotConvertible(xpath)) {
                    continue;
                }

                String val = loc.getFile().getStringValue(xpath);
                Resource string = ICUResourceWriter.createString(type, val);
                subTable.appendContents(string);
            }

            if (!subTable.isEmpty()) {
                table.appendContents(subTable);
            }
        }

        if (!table.isEmpty()) {
            return table;
        }

        return null;
    }

    private Resource parseLocaleDisplayPattern(LDML2ICUInputLocale loc) {
        log.setStatus(loc.getLocale());
        StringBuilder myXpath = new StringBuilder();
        myXpath.append("//ldml/localeDisplayNames/");
        myXpath.append(LDMLConstants.LOCALEDISPLAYPATTERN);
        ResourceTable table = new ResourceTable();
        table.name = LDMLConstants.LOCALEDISPLAYPATTERN;
        Resource alias = null;

        // if the whole thing is an alias
        if ((alias = getAliasResource(loc, myXpath.toString())) != null) {
            alias.name = table.name;
            return alias;
        }

        for (Iterator<String> iter = loc.getFile().iterator(myXpath.toString()); iter.hasNext();) {
            String xpath = iter.next();
            if (loc.isPathNotConvertible(xpath)) {
                continue;
            }

            String element = XPPUtil.getXpathName(xpath);
            String name = null;
            if (LDMLConstants.LOCALE_PATTERN.equals(element)) {
                name = LDMLConstants.PATTERN;
            } else if (LDMLConstants.LOCALE_SEPARATOR.equals(element)) {
                name = LDMLConstants.SEPARATOR;
            } else if (LDMLConstants.LOCALE_KEYTYPE_PATTERN.equals(element)) {
                name = LDMLConstants.KEYTYPE_PATTERN;
            } else {
                log.error("Encountered unknown <" + xpath + "> subelement: " + element + " while looking for "
                    + LDMLConstants.TYPE);
                System.exit(-1);
            }

            String value = loc.getFile().getStringValue(xpath);
            Resource res = ICUResourceWriter.createString(name, value);
            table.appendContents(res);
        }

        if (!table.isEmpty()) {
            return table;
        }

        return null;
    }

    private Resource parseList(LDML2ICUInputLocale loc, String name) {
        ResourceTable table = new ResourceTable();
        String rootNodeName = name;
        table.name = keyNameMap.get(rootNodeName);
        Resource current = null;
        boolean uc = rootNodeName.equals(LDMLConstants.VARIANTS);
        boolean prohibit = rootNodeName.equals(LDMLConstants.TERRITORIES);
        String origXpath = "//ldml/localeDisplayNames/" + name;
        if ((current = getAliasResource(loc, origXpath)) != null) {
            current.name = table.name;
            return current;
        }

        for (Iterator<String> iter = loc.getFile().iterator(origXpath); iter.hasNext();) {
            String xpath = iter.next();
            if (loc.isPathNotConvertible(xpath)) {
                continue;
            }

            ResourceString res = new ResourceString();
            res.name = loc.getBasicAttributeValue(xpath, LDMLConstants.TYPE);
            if (uc) {
                res.name = res.name.toUpperCase();
            }
            res.val = loc.getFile().getStringValue(xpath);

            if (res.name == null) {
                log.error(name + " - " + res.name + " = " + res.val);
            }

            if (prohibit == true && deprecatedTerritories.get(res.name) != null) {
                res = null;
            }
            if (res != null) {
                if (current == null) {
                    current = table.first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
            }
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    private Resource parseListAlt(LDML2ICUInputLocale loc, String originalName, String name, String altValue) {

        ResourceTable table = new ResourceTable();
        String rootNodeName = name;
        table.name = keyNameMap.get(rootNodeName);
        Resource current = null;
        boolean uc = rootNodeName.equals(LDMLConstants.VARIANTS);
        boolean prohibit = rootNodeName.equals(LDMLConstants.TERRITORIES);
        String origXpath = "//ldml/localeDisplayNames/" + originalName;
        if ((current = getAliasResource(loc, origXpath)) != null) {
            current.name = table.name;
            return current;
        }

        for (Iterator<String> iter = loc.getFile().iterator(origXpath); iter.hasNext();) {
            String xpath = iter.next();
            // Check for the "alt" attribute, and process it if requested.
            // Otherwise, skip it.
            String alt = loc.getBasicAttributeValue(xpath, LDMLConstants.ALT);
            if (alt == null || !alt.equals(altValue)) {
                continue;
            }

            ResourceString res = new ResourceString();
            res.name = loc.getBasicAttributeValue(xpath, LDMLConstants.TYPE);
            if (uc) {
                res.name = res.name.toUpperCase();
            }
            res.val = loc.getFile().getStringValue(xpath);

            if (res.name == null) {
                log.error(name + " - " + res.name + " = " + res.val);
            }

            if (prohibit == true && deprecatedTerritories.get(res.name) != null) {
                res = null;
            }
            if (res != null) {
                if (current == null) {
                    current = table.first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
            }
        }
        if (table.first != null) {
            return table;
        }

        return null;
    }

    private Resource parseArray(LDML2ICUInputLocale loc, String xpath) {
        ResourceArray array = new ResourceArray();
        String name = XPPUtil.getXpathName(xpath);
        array.name = keyNameMap.get(name);
        Resource current = null;
        // want them in sorted order (?)
        Set<String> xpaths = new TreeSet<String>();
        for (Iterator<String> iter = loc.getFile().iterator(xpath); iter.hasNext();) {
            xpath = iter.next();
            xpaths.add(xpath);
        }

        for (String apath : xpaths) {
            name = XPPUtil.getXpathName(apath);

            if (current == null) {
                current = array.first = new ResourceString();
            } else {
                current.next = new ResourceString();
                current = current.next;
            }

            ((ResourceString) current).val = loc.getFile().getStringValue(apath);
        }

        if (array.first != null) {
            return array;
        }

        return null;
    }

    /**
     * Parse a table (k/v pair) into an ICU table
     * 
     * @param loc
     *            locale
     * @param xpath
     *            base xpath of items
     * @param element
     *            the item to search for
     * @param attribute
     *            the attribute which will become the 'key' in icu
     * @return the table, or null
     */
    private Resource parseTable(LDML2ICUInputLocale loc, String xpath, String element, String attribute) {

        ResourceTable array = new ResourceTable();
        String name = XPPUtil.getXpathName(xpath);
        array.name = keyNameMap.get(name); // attempt
        for (Iterator<String> iter = loc.getFile().iterator(xpath); iter.hasNext();) {
            xpath = iter.next();
            if (loc.isPathNotConvertible(xpath)) {
                continue;
            }
            name = XPPUtil.getXpathName(xpath);
            if (!name.equals(element)) {
                log.error("Err: unknown item " + xpath + " / " + name + " - expected " + element);
                continue;
            }
            String type = loc.getBasicAttributeValue(xpath, attribute);
            String val = loc.getFile().getStringValue(xpath);

            array.appendContents(ICUResourceWriter.createString(type, val));
        }

        if (array.first != null) {
            return array;
        }

        return null;
    }

    private static final String ICU_SCRIPT = "icu:script";

    private Resource parseCharacters(LDML2ICUInputLocale loc, String xpath) {
        Resource first = null;
        for (Iterator<String> iter = loc.getFile().iterator(xpath); iter.hasNext();) {
            String aPath = iter.next();
            if (loc.isPathNotConvertible(aPath)) {
                continue;
            }

            String name = XPPUtil.getXpathName(aPath);

            Resource res = null;
            if (name.equals(LDMLConstants.EXEMPLAR_CHARACTERS)) {
                String type = loc.getBasicAttributeValue(aPath, LDMLConstants.TYPE);
                res = parseStringResource(loc, aPath);
                if (type != null && type.equals(LDMLConstants.AUXILIARY)) {
                    res.name = keyNameMap.get(LDMLConstants.AUXILIARY);
                } else if (type != null && type.equals(LDMLConstants.INDEX)) {
                    res.name = keyNameMap.get(LDMLConstants.INDEX);
                } else if (type != null && type.equals(LDMLConstants.PUNCTUATION)) {
                    res.name = keyNameMap.get(LDMLConstants.PUNCTUATION);
                } else {
                    res.name = keyNameMap.get(name);
                }
            } else if (name.equals(LDMLConstants.ALIAS)) {
                res = parseAliasResource(loc, aPath);
            } else if (name.equals(LDMLConstants.MAPPING)) {
                // Currently we dont have a way to represent this data in ICU !
                // And we don't need to
                // if (DEBUG)printXPathWarning(node, xpath);
            } else if (aPath.contains(LDMLConstants.STOPWORDS)) {
                // Skip for now
            } else if (aPath.indexOf("/" + LDMLConstants.SPECIAL) > 0) {
                res = parseSpecialElements(loc, aPath);
            } else if (aPath.contains("/ellipsis")) {
                System.out.println("TODO: Fix /ellipsis");
            } else if (aPath.contains("/moreInformation")) {
                System.out.println("TODO: Fix /moreInformation");
            } else {
                // skip ellipsis for now
                log.error("Unknown  character element found: " + aPath + " / " + name + " -> "
                    + loc.getFile().getFullXPath(aPath));
                System.exit(-1);
            }
            if (res != null) {
                first = Resource.addAfter(first, res);
            }
        }

        return first;
    }

    private Resource parseStringResource(LDML2ICUInputLocale loc, String xpath) {
        ResourceString str = new ResourceString();
        str.val = loc.getFile().getStringValue(xpath);
        str.name = XPPUtil.getXpathName(xpath);
        return str;
    }

    private Resource parseDelimiters(LDML2ICUInputLocale loc, String xpath) {
        if (loc.isPathNotConvertible(xpath)) {
            return null;
        }

        ResourceTable table = new ResourceTable();
        table.name = XPPUtil.getXpathName(xpath);

        Resource current = table.first;
        for (Iterator<String> iter = loc.getFile().iterator(xpath); iter.hasNext();) {
            xpath = iter.next();
            String name = XPPUtil.getXpathName(xpath);
            if (loc.isPathNotConvertible(xpath)) {
                continue;
            }
            Resource res = null;
            if (name.equals(LDMLConstants.QS) || name.equals(LDMLConstants.QE) || name.equals(LDMLConstants.AQS)
                || name.equals(LDMLConstants.AQE)) {
                // getXPath(node, xpath);
                if (loc.isPathNotConvertible(xpath)) {
                    continue;
                }
                res = parseStringResource(loc, xpath);
            } else if (name.equals(LDMLConstants.ALIAS)) {
                res = parseAliasResource(loc, xpath);
            } else {
                log.error("Unknown element found: " + xpath);
                System.exit(-1);
            }

            // this code is ugly, and repeated all over. Should be encapsulated, but table.addAfter(res) doesn't do the
            // right thing.
            // TODO fix it.

            if (res != null) {
                if (current == null) {
                    current = table.first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
                res = null;
            }
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    /**
     * Goal is to change:
     * <listPatterns>
     * <listPattern type="XXX">
     * <listPatternPart type="2">{0} and {1}</listPatternPart>
     * <listPatternPart type="end">{0}, and {1}</listPatternPart>
     * </listPattern>
     * </listPatterns>
     * 
     * to
     * 
     * listPattern{
     * XXX{
     * 2{"{0} and {1}"}
     * end{"{0}, and {1}"}
     * }
     * }
     * // note that XXX = standard if "XXX" == ""
     * 
     * @param loc
     * @param xpath
     * @return
     */
    private Resource parseLists(LDML2ICUInputLocale loc, String xpath) {
        if (loc.isPathNotConvertible(xpath)) {
            return null;
        }

        // if the whole thing is an alias
        Resource alias = null;
        if ((alias = getAliasResource(loc, xpath.toString())) != null) {
            alias.name = "listPattern";
            return alias;
        }

        // Since we have a two-level table, make a map to store the contents
        // If the items are always in order, we don't really need a map, but this is simpler to manage.
        Map<String, ResourceTable> subtables = new TreeMap<String, ResourceTable>();

        for (Iterator<String> iter = loc.getFile().iterator(xpath); iter.hasNext();) {
            xpath = iter.next();
            if (loc.isPathNotConvertible(xpath)) {
                continue;
            }
            // since we are a two-level table, we need to have an intermediate table
            String index = XPPUtil.getAttributeValue(xpath, "listPattern", "type");
            if (index == null) {
                index = "standard";
            }
            ResourceTable subtable = subtables.get(index);
            if (subtable == null) {
                subtable = new ResourceTable();
                subtable.name = index;
                subtables.put(index, subtable);
            }

            ResourceString res = new ResourceString();
            res.name = XPPUtil.getAttributeValue(xpath, "listPatternPart", "type");
            res.val = loc.getFile().getStringValue(xpath);
            addToTable(subtable, res);
        }

        if (subtables.size() == 0) {
            return null;
        }
        ResourceTable table = new ResourceTable();
        table.name = "listPattern";
        for (Resource res : subtables.values()) {
            addToTable(table, res);
        }

        return table;
    }

    /**
     * A hack to avoid duplicating code, and get around the fact that the model for resource tables doesn't keep an
     * end-pointer.
     * (And why it doesn't use standard collections??)
     * 
     * @param table
     * @param resource
     */
    static void addToTable(Resource table, Resource resource) {
        Resource current = table.first;
        if (current == null) {
            table.first = resource;
        } else {
            while (current.next != null) {
                current = current.next;
            }
            current.next = resource;
        }
    }

    private Resource parseMeasurement(String country, String variant, boolean isRoot) {
        Resource ret = null;
        // optimization
        if (variant.length() != 0) {
            return ret;
        }

        Resource current = null;
        Resource first = null;
        StringBuilder xpath = new StringBuilder("//supplementalData/measurementData");
        Node root = LDMLUtilities.getNode(supplementalDoc, xpath.toString());
        if (root == null) {
            throw new RuntimeException("Could not load: " + xpath.toString());
        }
        int savedLength = xpath.length();
        int oldLength = xpath.length();

        // if the whole node is marked draft then
        // don't write anything
        if (isNodeNotConvertible(root, xpath)) {
            return null;
        }

        for (Node node = root.getFirstChild(); node != null; node = node.getNextSibling()) {
            if (node.getNodeType() != Node.ELEMENT_NODE) {
                continue;
            }

            String name = node.getNodeName();
            Resource res = null;
            if (name.equals(LDMLConstants.MS)) {
                getXPath(node, xpath);
                if (isNodeNotConvertible(node, xpath)) {
                    xpath.setLength(oldLength);
                    continue;
                }

                String terr = LDMLUtilities.getAttributeValue(node, LDMLConstants.TERRITORIES);
                if (terr != null
                    && ((isRoot && terr.equals("001")) || (country.length() > 0 && !country.equals("001") && terr
                        .indexOf(country) >= 0))) {
                    ResourceInt resint = new ResourceInt();
                    String sys = LDMLUtilities.getAttributeValue(node, LDMLConstants.TYPE);
                    if (sys.equals("US")) {
                        resint.val = "1";
                    } else {
                        resint.val = "0";
                    }
                    resint.name = keyNameMap.get(LDMLConstants.MS);
                    res = resint;
                }
            } else if (name.equals(LDMLConstants.PAPER_SIZE)) {
                String terr = LDMLUtilities.getAttributeValue(node, LDMLConstants.TERRITORIES);
                if (terr != null
                    && ((isRoot && terr.equals("001")) || (country.length() > 0 && !country.equals("001") && terr
                        .indexOf(country) >= 0))) {
                    ResourceIntVector vector = new ResourceIntVector();
                    vector.name = keyNameMap.get(name);
                    ResourceInt height = new ResourceInt();
                    ResourceInt width = new ResourceInt();
                    vector.first = height;
                    height.next = width;
                    String type = LDMLUtilities.getAttributeValue(node, LDMLConstants.TYPE);
                    /*
                     * For A4 size paper the height and width are 297 mm and 210 mm repectively, and for US letter size
                     * the height and width are 279 mm and 216 mm respectively.
                     */
                    if (type.equals("A4")) {
                        height.val = "297";
                        width.val = "210";
                    } else if (type.equals("US-Letter")) {
                        height.val = "279";
                        width.val = "216";
                    } else {
                        throw new RuntimeException("Unknown paper type: " + type);
                    }
                    res = vector;
                }
            } else {
                log.error("Unknown element found: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    current = first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
                res = null;
            }
            xpath.delete(oldLength, xpath.length());
        }
        xpath.delete(savedLength, xpath.length());

        return first;
    }

    private Resource parseLayout(LDML2ICUInputLocale loc, String xpath) {
        ResourceTable table = new ResourceTable();
        table.name = XPPUtil.getXpathName(xpath);
        if (loc.isPathNotConvertible(xpath)) {
            return null;
        }

        for (Iterator<String> iter = loc.getFile().iterator(xpath); iter.hasNext();) {
            String aPath = iter.next();
            String name = XPPUtil.getXpathName(aPath);

            Resource res = null;
            if (name.equals(LDMLConstants.ALIAS)) {
                res = parseAliasResource(loc, aPath);
                return res;
            }

            if (name.equals(LDMLConstants.INLIST)) {
                ResourceString cs = null;
                if (!loc.isPathNotConvertible(aPath)) {
                    String casing = loc.getBasicAttributeValue(xpath, LDMLConstants.CASING);
                    if (casing != null) {
                        cs = new ResourceString();
                        cs.comment = "Used for figuring out the casing of characters in a list.";
                        cs.name = LDMLConstants.CASING;
                        cs.val = casing;
                        res = cs;
                    }
                }
            } else if (name.equals(LDMLConstants.ORIENTATION)) {
                ResourceString chs = null;
                ResourceString lns = null;
                if (!loc.isPathNotConvertible(aPath)) {
                    String characters = loc.getBasicAttributeValue(aPath, LDMLConstants.CHARACTERS);
                    String lines = loc.getBasicAttributeValue(aPath, LDMLConstants.LINES);
                    if (characters != null) {
                        chs = new ResourceString();
                        chs.name = LDMLConstants.CHARACTERS;
                        chs.val = characters;
                    }
                    if (lines != null) {
                        lns = new ResourceString();
                        lns.name = LDMLConstants.LINES;
                        lns.val = lines;
                    }
                    if (chs != null) {
                        res = chs;
                        chs.next = lns;
                    } else {
                        res = lns;
                    }
                }
            } else if (name.equals(LDMLConstants.INTEXT)) {
            } else {
                log.error("Unknown element found: " + xpath + " / " + name);
                System.exit(-1);
            }
            if (res != null) {
                table.appendContents(res);
                res = null;
            }
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    private Resource parseContextTransforms(LDML2ICUInputLocale loc, String xpath) {
        ResourceTable table = new ResourceTable();
        Resource current = null;
        table.name = LDMLConstants.CONTEXT_TRANSFORMS;

        // if the whole thing is an alias
        if ((current = getAliasResource(loc, xpath)) != null) {
            current.name = table.name;
            return current;
        }

        String origXpath = xpath;
        xpath = origXpath + "/" + LDMLConstants.CONTEXT_TRANSFORM_USAGE;

        Set<String> contextTransformUsages = loc.getByType(xpath, LDMLConstants.CONTEXT_TRANSFORM_USAGE);
        for (String contextTransformUsage : contextTransformUsages) {
            String subXpath = xpath + "[@type=\"" + contextTransformUsage + "\"]";
            // skip invalid & draft paths
            if (loc.isPathNotConvertible(subXpath)) {
                continue;
            }
            Resource res = parseContextTransformUsage(loc, subXpath);
            if (res != null) {
                if (current == null) {
                    current = table.first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
            }
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    private Resource parseContextTransformUsage(LDML2ICUInputLocale loc, String xpath) {
        ResourceIntVector vector = new ResourceIntVector();
        Resource current = null;
        vector.name = XPPUtil.getAttributeValue(xpath, LDMLConstants.CONTEXT_TRANSFORM_USAGE, LDMLConstants.TYPE);

        // if the whole thing is an alias
        if ((current = getAliasResource(loc, xpath)) != null) {
            current.name = vector.name;
            return current;
        }
        ResourceInt titlecaseUIListOrMenu = new ResourceInt();
        ResourceInt titlecaseStandalone = new ResourceInt();
        vector.first = titlecaseUIListOrMenu;
        titlecaseUIListOrMenu.next = titlecaseStandalone;
        titlecaseUIListOrMenu.val = "0";
        titlecaseStandalone.val = "0";

        String origXpath = xpath;
        xpath = origXpath + "/" + LDMLConstants.CONTEXT_TRANSFORM;

        Set<String> contextTransformTypes = loc.getByType(xpath, LDMLConstants.CONTEXT_TRANSFORM);
        for (String contextTransformType : contextTransformTypes) {
            String subXpath = xpath + "[@type=\"" + contextTransformType + "\"]";
            // skip invalid & draft paths
            if (loc.isPathNotConvertible(subXpath)) {
                continue;
            }
            if (contextTransformType.equals("uiListOrMenu")) {
                titlecaseUIListOrMenu.val = "1";
            } else if (contextTransformType.equals("stand-alone")) {
                titlecaseStandalone.val = "1";
            }
        }

        if (vector.first != null) {
            return vector;
        }

        return null;
    }

    private Resource parseDates(LDML2ICUInputLocale loc, String xpath) {
        Resource first = null;
        Resource current = null;
        // if the whole thing is an alias
        if ((current = getAliasResource(loc, xpath)) != null) {
            return current;
        }

        // if the whole node is marked draft then
        // don't write anything
        final String stuff[] = { LDMLConstants.DEFAULT,
            // LDMLConstants.LPC,
            LDMLConstants.CALENDARS, LDMLConstants.TZN,
            // LDMLConstants.DRP,
        };

        String origXpath = xpath;
        for (int jj = 0; jj < stuff.length; jj++) {
            String name = stuff[jj];
            xpath = origXpath + "/" + name;
            if (loc.isPathNotConvertible(xpath)) {
                continue;
            }
            Resource res = null;

            if (name.equals(LDMLConstants.ALIAS)) {
                // dont compute xpath
                // res = parseAliasResource(loc, xpath);
                // handled above
            } else if (name.equals(LDMLConstants.DEFAULT)) {
                res = getDefaultResource(loc, xpath, name);
            } else if (name.equals(LDMLConstants.LPC)) {
                // localized pattern chars are deprecated
            } else if (name.equals(LDMLConstants.CALENDARS)) {
                res = parseCalendars(loc, xpath);
            } else if (name.equals(LDMLConstants.TZN)) {
                res = parseTimeZoneNames(loc, xpath);
            } else if (name.equals(LDMLConstants.DRP)) {
            } else {
                log.error("Encountered unknown <" + xpath + "> subelement: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    current = first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
                res = null;
            }
        }

        return first;
    }

    private Resource parseCalendars(LDML2ICUInputLocale loc, String xpath) {
        ResourceTable table = new ResourceTable();
        Resource current = null;
        table.name = LDMLConstants.CALENDAR;
        // if the whole thing is an alias
        if ((current = getAliasResource(loc, xpath)) != null) {
            current.name = table.name;
            return current;
        }

        // if the whole node is marked draft then
        // don't write anything
        final String stuff[] = {
            // LDMLConstants.ALIAS,
            LDMLConstants.DEFAULT, LDMLConstants.CALENDAR, };

        String origXpath = xpath;
        for (int jj = 0; jj < stuff.length; jj++) {
            String name = stuff[jj];
            xpath = origXpath + "/" + name;
            if (!loc.isNotOnDisk() && loc.isPathNotConvertible(xpath)) {
                continue;
            }
            Resource res = null;

            if (name.equals(LDMLConstants.ALIAS)) {
                res = parseAliasResource(loc, xpath);
                res.name = table.name;
                return res;
            }

            if (name.equals(LDMLConstants.DEFAULT)) {
                res = getDefaultResource(loc, xpath, name);
            } else if (name.equals(LDMLConstants.CALENDAR)) {
                Set<String> cals = loc.getByType(xpath, LDMLConstants.CALENDAR);
                for (String cal : cals) {
                    res = parseCalendar(loc, xpath + "[@type=\"" + cal + "\"]");
                    if (res != null) {
                        table.appendContents(res);
                        res = null;
                    }
                }
                // if there was an item, resync current.
                if (table.first != null) {
                    current = table.first.end();
                }
            } else {
                log.error("Encountered unknown <" + xpath + "> subelement: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    current = table.first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
                res = null;
            }
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    private Resource parseTimeZoneNames(LDML2ICUInputLocale loc, String xpath) {
        ResourceTable table = new ResourceTable();
        Resource current = null;
        table.name = keyNameMap.get(XPPUtil.getXpathName(xpath));

        Set<String> zones = new HashSet<String>();
        Set<String> metazones = new HashSet<String>();
        for (Iterator<String> iter = loc.getFile().iterator(xpath); iter.hasNext();) {
            String apath = iter.next();
            String name = XPPUtil.getXpathName(apath, 3);
            if (loc.isPathNotConvertible(apath)) {
                continue;
            }
            Resource res = null;

            if (name.equals(LDMLConstants.ALIAS)) {
                res = parseAliasResource(loc, apath);
                res.name = table.name;
                return res;
            }

            if (name.equals(LDMLConstants.DEFAULT)) {
                res = getDefaultResource(loc, apath, name);
            } else if (name.equals(LDMLConstants.ZONE)) {
                String tzname = XPPUtil.getAttributeValue(apath, LDMLConstants.ZONE, LDMLConstants.TYPE);
                zones.add(tzname);
            } else if (name.equals(LDMLConstants.METAZONE)) {
                String mzname = XPPUtil.getAttributeValue(apath, LDMLConstants.METAZONE, LDMLConstants.TYPE);
                metazones.add(mzname);
            } else if (name.equals(LDMLConstants.HOUR_FORMAT) || name.equals(LDMLConstants.GMT_FORMAT)
                || name.equals(LDMLConstants.GMT_ZERO_FORMAT) || name.equals(LDMLConstants.REGION_FORMAT)
                || name.equals(LDMLConstants.FALLBACK_FORMAT)) {
                ResourceString str = new ResourceString();
                str.name = name;
                str.val = loc.getFile().getStringValue(apath);
                if (str.val != null) {
                    res = str;
                }
            } else if (name.equals(LDMLConstants.ABBREVIATION_FALLBACK) || name.equals(LDMLConstants.HOURS_FORMAT)
                || name.equals(LDMLConstants.PREFERENCE_ORDERING)) {
                // deprecated, skip
            } else if (name.equals(LDMLConstants.SINGLE_COUNTRIES)) {
                ResourceArray arr = new ResourceArray();
                arr.name = name;
                Resource c = null;
                String[] values = null;
                if (name.equals(LDMLConstants.SINGLE_COUNTRIES)) {
                    values = loc.getBasicAttributeValue(apath, LDMLConstants.LIST).split(" ");
                } else {
                    String temp = loc.getBasicAttributeValue(apath, LDMLConstants.CHOICE);
                    if (temp == null) {
                        temp = loc.getBasicAttributeValue(apath, LDMLConstants.TYPE);
                        if (temp == null) {
                            throw new IllegalArgumentException("Node: " + name
                                + " must have either type or choice attribute");
                        }
                    }
                    values = temp.split("\\s+");
                }

                for (int i = 0; i < values.length; i++) {
                    ResourceString str = new ResourceString();
                    str.val = values[i];
                    if (c == null) {
                        arr.first = c = str;
                    } else {
                        c.next = str;
                        c = c.next;
                    }
                }
                if (arr.first != null) {
                    res = arr;
                }
            } else {
                log.error("Encountered unknown <" + apath + "> subelement: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    current = table.first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
                res = null;
            }
        }

        for (Iterator<String> iter = zones.iterator(); iter.hasNext();) {
            Resource res = null;
            String zonepath = "//ldml/dates/timeZoneNames/zone[@type=\"" + iter.next() + "\"]";
            res = parseZone(loc, zonepath);
            if (res != null) {
                if (current == null) {
                    current = table.first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
                res = null;
            }
        }

        for (Iterator<String> iter = metazones.iterator(); iter.hasNext();) {
            Resource res = null;
            String zonepath = "//ldml/dates/timeZoneNames/metazone[@type=\"" + iter.next() + "\"]";
            res = parseMetazone(loc, zonepath);
            if (res != null) {
                if (current == null) {
                    current = table.first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
                res = null;
            }
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    private ResourceString getDefaultResource(LDML2ICUInputLocale loc, String xpath) {
        return getDefaultResource(loc, xpath, XPPUtil.getXpathName(xpath));
    }

    /**
     * @deprecated
     */
    @Deprecated
    public static ResourceString getDefaultResource(Node node, StringBuilder xpath, String name) {
        ResourceString str = new ResourceString();
        String temp = LDMLUtilities.getAttributeValue(node, LDMLConstants.CHOICE);
        if (temp == null) {
            temp = LDMLUtilities.getAttributeValue(node, LDMLConstants.TYPE);
            if (temp == null) {
                throw new IllegalArgumentException("Node: " + name + " must have either type or choice attribute");
            }
        }

        str.name = name;
        str.val = temp;
        return str;
    }

    private static ResourceString getDefaultResource(LDML2ICUInputLocale loc, String xpath, String name) {
        ResourceString str = new ResourceString();
        String temp = loc.getBasicAttributeValue(xpath, LDMLConstants.CHOICE);
        if (temp == null) {
            temp = loc.getBasicAttributeValue(xpath, LDMLConstants.TYPE);
            if (temp == null) {
                if (!loc.getFile().isHere(xpath)) {
                    return null;
                }

                throw new IllegalArgumentException("Node: " + xpath + " must have either type or choice attribute");
            }
        }

        str.name = name;
        str.val = temp;
        return str;
    }

    private static ResourceString getDefaultResourceWithFallback(LDML2ICUInputLocale loc, String xpath, String name) {
        ResourceString str = new ResourceString();

        if (loc.isPathNotConvertible(xpath)) {
            return null;
        }

        // try to get from the specified locale
        String temp = loc.getBasicAttributeValue(xpath, LDMLConstants.CHOICE);
        if (temp == null) {
            temp = loc.getBasicAttributeValue(xpath, LDMLConstants.TYPE);
        }
        if (temp == null) {
            temp = XPPUtil.getBasicAttributeValue(loc.resolved(), xpath, LDMLConstants.CHOICE);
        }
        if (temp == null) {
            temp = XPPUtil.getBasicAttributeValue(loc.resolved(), xpath, LDMLConstants.TYPE);
        }

        // check final results
        if (temp == null) {
            if (!loc.getFile().isHere(xpath)) {
                return null;
            }

            throw new IllegalArgumentException("Node: " + xpath + "  must have either type or choice attribute");
        }

        // return data if we get here
        str.name = name;
        str.val = temp;
        return str;
    }

    private Resource parseZone(LDML2ICUInputLocale loc, String xpath) {
        ResourceTable table = new ResourceTable();
        ResourceTable uses_mz_table = new ResourceTable();

        boolean containsUM = false;
        int mz_count = 0;

        String id = XPPUtil.getAttributeValue(xpath, LDMLConstants.ZONE, LDMLConstants.TYPE);

        table.name = "\"" + id + "\"";
        table.name = table.name.replace('/', ':');
        Resource current = null;
        Resource current_mz = null;
        uses_mz_table.name = "um";

        for (Iterator<String> iter = loc.getFile().iterator(xpath); iter.hasNext();) {
            String aPath = iter.next();
            String name = XPPUtil.getXpathName(aPath);
            Resource res = null;

            if (loc.isPathNotConvertible(aPath)) {
                continue;
            }

            if (name.equals(LDMLConstants.ALIAS)) {
                res = parseAliasResource(loc, aPath);
                if (res != null) {
                    res.name = table.name;
                }
                return res;
            }

            if (name.equals(LDMLConstants.DEFAULT)) {
                res = getDefaultResource(loc, aPath, name);
            } else if (name.equals(LDMLConstants.STANDARD) || name.equals(LDMLConstants.DAYLIGHT)
                || name.equals(LDMLConstants.GENERIC)) {
                String shortlong = XPPUtil.getXpathName(aPath, -2).substring(0, 1);
                ResourceString str = new ResourceString();
                str.name = shortlong + name.substring(0, 1);
                str.val = loc.getFile().getStringValue(aPath);
                if (str.val != null) {
                    res = str;
                }
            } else if (name.equals(LDMLConstants.COMMONLY_USED)) {
                ResourceInt resint = new ResourceInt();
                String used = loc.getFile().getStringValue(aPath);
                if (used.equals("true")) {
                    resint.val = "1";
                } else {
                    resint.val = "0";
                }
                resint.name = "cu";
                res = resint;
            } else if (name.equals(LDMLConstants.USES_METAZONE)) {
                ResourceArray this_mz = new ResourceArray();
                ResourceString mzone = new ResourceString();
                ResourceString from = new ResourceString();
                ResourceString to = new ResourceString();

                this_mz.name = "mz" + String.valueOf(mz_count);
                this_mz.first = mzone;
                mzone.next = from;
                from.next = to;
                mz_count++;

                mzone.val = loc.getBasicAttributeValue(aPath, LDMLConstants.MZONE);
                String str = loc.getBasicAttributeValue(aPath, LDMLConstants.FROM);
                if (str != null) {
                    from.val = str;
                } else {
                    from.val = "1970-01-01 00:00";
                }

                str = loc.getBasicAttributeValue(aPath, LDMLConstants.TO);
                if (str != null) {
                    to.val = str;
                } else {
                    to.val = "9999-12-31 23:59";
                }
                if (current_mz == null) {
                    uses_mz_table.first = this_mz;
                    current_mz = this_mz.end();
                } else {
                    current_mz.next = this_mz;
                    current_mz = this_mz.end();
                }
                containsUM = true;

                res = null;
            } else if (name.equals(LDMLConstants.EXEMPLAR_CITY)) {
                String ec = loc.getFile().getStringValue(aPath);
                if (ec != null) {
                    ResourceString str = new ResourceString();
                    str.name = "ec";
                    str.val = ec;
                    res = str;
                }
            } else {
                log.error("Encountered unknown <" + xpath + "> subelement: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    table.first = res;
                    current = res.end();
                } else {
                    current.next = res;
                    current = res.end();
                }
                res = null;
            }
        }

        // Add the metazone mapping table if mz mappings were present
        if (containsUM) {
            Resource res = uses_mz_table;
            if (current == null) {
                table.first = res;
                current = res.end();
            } else {
                current.next = res;
                current = res.end();
            }
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    private Resource parseMetazone(LDML2ICUInputLocale loc, String xpath) {
        ResourceTable table = new ResourceTable();
        String id = XPPUtil.getAttributeValue(xpath, LDMLConstants.METAZONE, LDMLConstants.TYPE);
        table.name = "\"meta:" + id + "\"";
        table.name = table.name.replace('/', ':');
        Resource current = null;

        for (Iterator<String> iter = loc.getFile().iterator(xpath); iter.hasNext();) {
            String aPath = iter.next();
            String name = XPPUtil.getXpathName(aPath);
            Resource res = null;
            if (loc.isPathNotConvertible(aPath)) {
                continue;
            }

            if (name.equals(LDMLConstants.ALIAS)) {
                res = parseAliasResource(loc, aPath);
                if (res != null) {
                    res.name = table.name;
                }
                return res;
            }

            if (name.equals(LDMLConstants.DEFAULT)) {
                res = getDefaultResource(loc, aPath, name);
            } else if (name.equals(LDMLConstants.STANDARD) || name.equals(LDMLConstants.DAYLIGHT)
                || name.equals(LDMLConstants.GENERIC)) {
                String shortlong = XPPUtil.getXpathName(aPath, -2).substring(0, 1);
                ResourceString str = new ResourceString();
                str.name = shortlong + name.substring(0, 1);
                str.val = loc.getFile().getStringValue(aPath);
                if (str.val != null) {
                    res = str;
                }
            } else if (name.equals(LDMLConstants.COMMONLY_USED)) {
                ResourceInt resint = new ResourceInt();
                String used = loc.getFile().getStringValue(aPath);
                if (used.equals("true")) {
                    resint.val = "1";
                } else {
                    resint.val = "0";
                }
                resint.name = "cu";
                res = resint;
            } else {
                log.error("Encountered unknown <" + xpath + "> subelement: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    table.first = res;
                    current = res.end();
                } else {
                    current.next = res;
                    current = res.end();
                }
                res = null;
            }
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    private Resource parseIntervalFormats(LDML2ICUInputLocale loc, String parentxpath) {
        String xpath = parentxpath + "/" + LDMLConstants.INTVL_FMTS;
        Resource formats;

        formats = parseAliasResource(loc, xpath + "/" + LDMLConstants.ALIAS);
        if (formats != null) {
            formats.name = LDMLConstants.INTVL_FMTS;
            String val = ((ResourceAlias) formats).val;
            ((ResourceAlias) formats).val = val.replace(DTP + "/", "");
            return formats;
        }

        formats = new ResourceTable();
        formats.name = LDMLConstants.INTVL_FMTS;
        Map<String, ResourceTable> tableMap = new HashMap<String, ResourceTable>();

        for (Iterator<String> iter = loc.getFile().iterator(xpath); iter.hasNext();) {
            Resource newres = null;
            String localxpath = iter.next();
            if (loc.isPathNotConvertible(localxpath)) {
                continue;
            }

            String name = XPPUtil.getXpathName(localxpath);
            if (name.equals(LDMLConstants.SPECIAL)) {
                newres = parseSpecialElements(loc, xpath);
            } else if (name.equals(LDMLConstants.INTVL_FMT_FALL)) {
                newres = new ResourceString(LDMLConstants.FALLBACK, loc.getFile().getStringValue(localxpath));
            } else if (name.equals(LDMLConstants.GREATEST_DIFF)) {
                String parentName = XPPUtil.getXpathName(localxpath, -2);
                String tableName = XPPUtil.getAttributeValue(localxpath, parentName, LDMLConstants.ID);
                // See if we've already created a table for this particular
                // intervalFormatItem.
                ResourceTable table = tableMap.get(tableName);
                if (table == null) {
                    // We haven't encountered this one yet, so
                    // create a new table and put it into the map.
                    table = new ResourceTable();
                    table.name = tableName;
                    tableMap.put(tableName, table);
                    // Update newres to reflect the fact we've created a new
                    // table. This will link the table into the resource chain
                    // for the enclosing table.
                    newres = table;
                }

                ResourceString str = new ResourceString();
                str.name = XPPUtil.getAttributeValue(localxpath, name, LDMLConstants.ID);
                str.val = loc.getFile().getStringValue(localxpath);

                table.appendContents(str);
            } else {
                log.warning("Unknown item " + localxpath);
            }

            if (newres != null) {
                formats.appendContents(newres);
            }
        }

        if (formats.first != null) {
            return formats;
        }

        return null;
    }

    private Resource parseCalendar(LDML2ICUInputLocale loc, String xpath) {
        ResourceTable table = new ResourceTable();
        Resource current = null;

        boolean writtenAmPm = false;
        boolean writtenDTF = false;
        table.name = XPPUtil.getAttributeValue(xpath, LDMLConstants.CALENDAR, LDMLConstants.TYPE);
        String origXpath = xpath;
        // if the whole thing is an alias
        if ((current = getAliasResource(loc, xpath)) != null) {
            current.name = table.name;
            return current;
        }

        final String stuff[] = { LDMLConstants.DEFAULT, LDMLConstants.MONTHS, LDMLConstants.MONTH_PATTERNS,
            LDMLConstants.DAYS,
            // LDMLConstants.WEEK,
            LDMLConstants.ERAS, LDMLConstants.CYCLIC_NAME_SETS,
            LDMLConstants.DATE_FORMATS, LDMLConstants.TIME_FORMATS, LDMLConstants.DATE_TIME_FORMATS,
            LDMLConstants.SPECIAL, LDMLConstants.FIELDS, LDMLConstants.QUARTERS, LDMLConstants.DAYPERIODS, };

        for (int jj = 0; jj < stuff.length; jj++) {
            String name = stuff[jj];
            xpath = origXpath + "/" + name;
            if (loc.isPathNotConvertible(xpath)) {
                continue;
            }
            Resource res = null;

            if (name.equals(LDMLConstants.ALIAS)) {
                res = parseAliasResource(loc, xpath);
                if (res != null) {
                    res.name = table.name;
                }
                return res;
            }

            if (name.equals(LDMLConstants.DEFAULT)) {
                res = getDefaultResource(loc, xpath, name);
            } else if (name.equals(LDMLConstants.MONTHS) || name.equals(LDMLConstants.MONTH_PATTERNS)
                || name.equals(LDMLConstants.DAYS)) {
                res = parseMonthsAndDays(loc, xpath);
            } else if (name.equals(LDMLConstants.WEEK)) {
                log.info("<week > element is deprecated and the data should moved to " + supplementalDataFile);
            } else if (name.equals(LDMLConstants.DAYPERIODS)) {
                if (writtenAmPm == false) {
                    writtenAmPm = true;
                    res = parseAmPm(loc, xpath);
                }
            } else if (name.equals(LDMLConstants.ERAS)) {
                res = parseEras(loc, xpath);
            } else if (name.equals(LDMLConstants.CYCLIC_NAME_SETS)) {
                res = parseCyclicNameSets(loc, xpath);
            } else if (name.equals(LDMLConstants.DATE_FORMATS) || name.equals(LDMLConstants.TIME_FORMATS)
                || name.equals(LDMLConstants.DATE_TIME_FORMATS)) {
                // TODO what to do if a number of formats are present?
                if (writtenDTF == false) {
                    res = parseDTF(loc, origXpath);
                    writtenDTF = true;
                }
                if (name.equals(LDMLConstants.DATE_TIME_FORMATS)) {
                    // handle flexi formats
                    Resource temp;

                    temp = parseAliasResource(loc, xpath + "/" + LDMLConstants.ALIAS);
                    if (temp != null) {
                        String dtpPath = ((ResourceAlias) temp).val;
                        // need to replace "/DateTimePatterns" = DTP at end with desired type

                        ResourceAlias afAlias = new ResourceAlias();
                        afAlias.name = LDMLConstants.AVAIL_FMTS;
                        afAlias.val = dtpPath.replace(DTP, LDMLConstants.AVAIL_FMTS);
                        res = Resource.addAfter(res, afAlias);

                        ResourceAlias aaAlias = new ResourceAlias();
                        aaAlias.name = LDMLConstants.APPEND_ITEMS;
                        aaAlias.val = dtpPath.replace(DTP, LDMLConstants.APPEND_ITEMS);
                        res = Resource.addAfter(res, aaAlias);

                        ResourceAlias ifAlias = new ResourceAlias();
                        ifAlias.name = LDMLConstants.INTVL_FMTS;
                        ifAlias.val = dtpPath.replace(DTP, LDMLConstants.INTVL_FMTS);
                        res = Resource.addAfter(res, ifAlias);
                    } else {
                        temp = parseTable(loc, xpath + "/" + LDMLConstants.AVAIL_FMTS, LDMLConstants.DATE_FMT_ITEM,
                            LDMLConstants.ID);
                        if (temp != null) {
                            temp.name = LDMLConstants.AVAIL_FMTS;
                            res = Resource.addAfter(res, temp);
                        }

                        temp = parseTable(loc, xpath + "/" + LDMLConstants.APPEND_ITEMS, LDMLConstants.APPEND_ITEM,
                            LDMLConstants.REQUEST);
                        if (temp != null) {
                            temp.name = LDMLConstants.APPEND_ITEMS;
                            res = Resource.addAfter(res, temp);
                        }

                        temp = parseIntervalFormats(loc, xpath);
                        if (temp != null) {
                            res = Resource.addAfter(res, temp);
                        }

                    }
                }
            } else if (name.equals(LDMLConstants.SPECIAL)) {
                res = parseSpecialElements(loc, xpath);
            } else if (name.equals(LDMLConstants.FIELDS)) {
                // if the whole thing is an alias
                if ((res = getAliasResource(loc, xpath)) == null) {
                    ResourceTable subTable = new ResourceTable();
                    subTable.name = LDMLConstants.FIELDS;
                    Set<String> fields = loc.getByType(xpath, LDMLConstants.FIELD);
                    for (String field : fields) {
                        res = parseField(loc, xpath + "/field[@type=\"" + field + "\"]", field);
                        if (res != null) {
                            subTable.appendContents(res);
                        }
                    }
                    if (!subTable.isEmpty()) {
                        res = subTable;
                    }
                } else {
                    res.name = LDMLConstants.FIELDS;
                }
            } else if (name.equals(LDMLConstants.QUARTERS)) {
                // if (DEBUG)printXPathWarning(node, xpath);
                res = parseMonthsAndDays(loc, xpath);
            } else {
                log.error("Encountered unknown <" + xpath + "> subelement: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    table.first = res;
                    current = res.end();
                } else {
                    current.next = res;
                    current = res.end();
                }
                res = null;
            }
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    private Resource parseField(LDML2ICUInputLocale loc, String xpath, String type) {
        ResourceTable table = new ResourceTable();
        Resource current = null;
        table.name = type;
        ResourceString dn = null;
        ResourceTable relative = new ResourceTable();
        relative.name = LDMLConstants.RELATIVE;

        // if the whole node is marked draft then
        // dont write anything
        if (loc.isPathNotConvertible(xpath)) {
            return null;
        }

        // if the whole thing is an alias
        if ((current = getAliasResource(loc, xpath)) != null) {
            current.name = table.name;
            return current;
        }

        for (Iterator<String> iter = loc.getFile().iterator(xpath); iter.hasNext();) {
            xpath = iter.next();
            String name = XPPUtil.getXpathName(xpath);
            if (loc.isPathNotConvertible(xpath)) {
                continue;
            }
            Resource res = null;

            if (name.equals(LDMLConstants.ALIAS)) {
                res = parseAliasResource(loc, xpath);
                res.name = table.name;
                return res;
            }

            if (name.equals(LDMLConstants.RELATIVE)) {
                ResourceString str = new ResourceString();
                str.name = "\"" + loc.getBasicAttributeValue(xpath, LDMLConstants.TYPE) + "\"";
                str.val = loc.getFile().getStringValue(xpath);
                res = str;
                if (res != null) {
                    if (current == null) {
                        current = relative.first = res;
                    } else {
                        current.next = res;
                        current = current.next;
                    }
                    res = null;
                }
            } else if (name.equals(LDMLConstants.DISPLAY_NAME)) {
                dn = new ResourceString();
                dn.name = keyNameMap.get(LDMLConstants.DISPLAY_NAME);
                dn.val = loc.getFile().getStringValue(xpath);
            } else {
                log.error("Encountered unknown <" + xpath + "> subelement: " + name);
                System.exit(-1);
            }
        }

        if (dn != null) {
            table.first = dn;
        }

        if (relative.first != null) {
            if (table.first != null) {
                table.first.next = relative;
            } else {
                table.first = relative;
            }
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    private Resource parseMonthsAndDays(LDML2ICUInputLocale loc, String xpath) {
        ResourceTable table = new ResourceTable();
        Resource current = null;
        String name = XPPUtil.getXpathName(xpath);
        table.name = keyNameMap.get(name);

        // if the whole thing is an alias
        if ((current = getAliasResource(loc, xpath)) != null) {
            current.name = table.name; // months -> monthNames
            return current;
        }

        final String stuff[] = { LDMLConstants.DEFAULT, LDMLConstants.MONTH_CONTEXT,
            LDMLConstants.MONTH_PATTERN_CONTEXT, LDMLConstants.DAY_CONTEXT, LDMLConstants.QUARTER_CONTEXT, };

        String origXpath = xpath;
        for (int jj = 0; jj < stuff.length; jj++) {
            name = stuff[jj];
            xpath = origXpath + "/" + name;
            if (loc.isPathNotConvertible(xpath)) {
                continue;
            }
            Resource res = null;

            if (name.equals(LDMLConstants.ALIAS)) {
                res = parseAliasResource(loc, xpath);
                res.name = table.name;
                return res;
            }

            if (name.equals(LDMLConstants.DEFAULT)) {
                res = getDefaultResource(loc, xpath, name);
            } else if (name.equals(LDMLConstants.MONTH_CONTEXT) || name.equals(LDMLConstants.MONTH_PATTERN_CONTEXT)
                || name.equals(LDMLConstants.DAY_CONTEXT) || name.equals(LDMLConstants.QUARTER_CONTEXT)) {
                Set<String> ctxs = loc.getByType(xpath, name);
                for (String ctx : ctxs) {
                    res = parseContext(loc, xpath + "[@type=\"" + ctx + "\"]");
                    if (res != null) {
                        table.appendContents(res);
                        res = null;
                    }
                }
                // if there was an item, resync current.
                if (table.first != null) {
                    current = table.first.end();
                }
            } else {
                log.error("Encountered unknown <" + xpath + "> subelement: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    current = table.first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
                res = null;
            }
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    private Resource parseContext(LDML2ICUInputLocale loc, String xpath) {
        ResourceTable table = new ResourceTable();
        Resource current = null;

        // if the whole node is marked draft then
        // don't write anything
        if (loc.isPathNotConvertible(xpath)) {
            return null;
        }

        String myName = XPPUtil.getXpathName(xpath);
        String resName = myName.substring(0, myName.lastIndexOf("Context"));
        table.name = XPPUtil.getAttributeValue(xpath, myName, LDMLConstants.TYPE);
        if (table.name == null) {
            throw new InternalError("Can't get table name for " + xpath + " / " + resName + " / " + LDMLConstants.TYPE);
        }

        // if the whole thing is an alias
        if ((current = getAliasResource(loc, xpath)) != null) {
            current.name = table.name;
            return current;
        }

        String stuff[] = { LDMLConstants.DEFAULT, resName + "Width", };

        String origXpath = xpath;
        for (int jj = 0; jj < stuff.length; jj++) {
            String name = stuff[jj];
            xpath = origXpath + "/" + name;
            if (loc.isPathNotConvertible(xpath)) {
                continue;
            }
            Resource res = null;
            if (name.equals(LDMLConstants.ALIAS)) {
                res = parseAliasResource(loc, xpath);
                if (res != null) {
                    res.name = table.name;
                }
                return res; // an alias if for the resource
            }

            if (name.equals(LDMLConstants.DEFAULT)) {
                res = getDefaultResource(loc, xpath, name);
            } else if (name.equals(resName + "Width")) {
                Set<String> ctxs = loc.getByType(xpath, name);
                for (String ctx : ctxs) {
                    res = parseWidth(loc, resName, xpath + "[@type=\"" + ctx + "\"]");
                    if (res != null) {
                        table.appendContents(res);
                        res = null;
                    }
                }
                // if there was an item, resync current.
                if (table.first != null) {
                    current = table.first.end();
                }
            } else {
                log.error("Encountered unknown <" + xpath + "> subelement: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    current = table.first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
                res = null;
            }
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    public static String getDayNumberAsString(String type) {
        if (type.equals("sun")) {
            return "1";
        } else if (type.equals("mon")) {
            return "2";
        } else if (type.equals("tue")) {
            return "3";
        } else if (type.equals("wed")) {
            return "4";
        } else if (type.equals("thu")) {
            return "5";
        } else if (type.equals("fri")) {
            return "6";
        } else if (type.equals("sat")) {
            return "7";
        } else {
            throw new IllegalArgumentException("Unknown type: " + type);
        }
    }

    private Resource parseWidth(LDML2ICUInputLocale loc, String resName, String xpath) {
        log.setStatus(loc.getLocale());
        Resource arrayOrTable = (resName.equals(LDMLConstants.MONTH_PATTERN)) ? new ResourceTable()
            : new ResourceArray();
        Resource current = null;
        arrayOrTable.name = XPPUtil.getAttributeValue(xpath, resName + "Width", LDMLConstants.TYPE);

        // if the whole node is marked draft then
        // don't write anything
        if (loc.isPathNotConvertible(xpath)) {
            return null;
        }

        // if the whole thing is an alias
        if ((current = getAliasResource(loc, xpath)) != null) {
            current.name = arrayOrTable.name;
            return current;
        }

        Map<String, String> map = getElementsMap(loc, resName, xpath, false);
        if (map.size() == 0) {
            log.info("No vals, exiting " + xpath);
            return null;
        }

        Map<String, String> defMap = null;
        if (loc.resolved() != null) {
            defMap = getElementsMap(loc, resName, xpath, true);
        }
        Set<String> allThings = new TreeSet<String>();
        allThings.addAll(map.keySet());
        if (defMap != null) {
            allThings.addAll(defMap.keySet());
        }

        if ((resName.equals(LDMLConstants.DAY) && allThings.size() < 7)
            || (resName.equals(LDMLConstants.MONTH) && allThings.size() < 12)) {
            log.error("Could not get full " + resName + " array. [" + xpath + "] Only found " + map.size()
                + " items  in target locale (" + allThings.size() + " including "
                + ((defMap != null) ? defMap.size() : 0) + " inherited). Skipping.");
            return null;
        }

        if (map.size() > 0) {
            if (!resName.equals(LDMLConstants.MONTH_PATTERN)) {
                for (int i = 0; i < allThings.size(); i++) {
                    String key = Integer.toString(i);
                    ResourceString res = new ResourceString();
                    res.val = map.get(key);
                    if (res.val == null && defMap != null) {
                        res.val = defMap.get(key);
                        if (verboseFallbackComments && res.val != null) {
                            res.smallComment = " fallback";
                        }
                    }
                    if (res.val == null) {
                        log.error("Could not get full " + resName + " array., in " + xpath + " -   Missing #" + key
                            + ".  Only found " + map.size() + " items (" + allThings.size()
                            + " including inherited). Skipping.");
                        return null;
                    }

                    // array of unnamed strings
                    if (res.val != null) {
                        if (current == null) {
                            current = arrayOrTable.first = res;
                        } else {
                            current.next = res;
                            current = current.next;
                        }
                    }
                }
            } else {
                // do we care about defMap here?
                for (String key : map.keySet()) {
                    ResourceString res = new ResourceString();
                    res.name = key;
                    res.val = map.get(key);
                    if (res.val != null) {
                        if (current == null) {
                            current = arrayOrTable.first = res;
                        } else {
                            current.next = res;
                            current = current.next;
                        }
                    }
                }
            }
        }

        // parse the default node
        {
            ResourceString res = getDefaultResource(loc, xpath + "/default");
            if (res != null) {
                log.warning("Found def for " + xpath + " - " + res.val);
                if (current == null) {
                    current = arrayOrTable.first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
            }
        }

        if (arrayOrTable.first != null) {
            return arrayOrTable;
        }

        return null;
    }

    private static Set<String> completion_day = null;
    private static Set<String> completion_month = null;
    private static Set<String> completion_era = null;
    private static Set<String> completion_q = null;
    private static Set<String> completion_era_j = null;
    private static Set<String> completion_num60 = null;
    private static Set<String> completion_num12 = null;

    private Set<String> createNumericStringArray(int max) {
        Set<String> set = new HashSet<String>();
        for (int i = 0; i <= max; i++) {
            set.add(new Integer(i).toString());
        }
        return set;
    }

    private Set<String> getSetCompletion(LDML2ICUInputLocale loc, String element, String xpath) {
        if (element.equals(LDMLConstants.DAY)) {
            if (completion_day == null) {
                completion_day = new HashSet<String>();
                String days[] = { LDMLConstants.SUN, LDMLConstants.MON, LDMLConstants.TUE, LDMLConstants.WED,
                    LDMLConstants.THU, LDMLConstants.FRI, LDMLConstants.SAT };
                for (String day : days) {
                    completion_day.add(day);
                }
            }
            return completion_day;
        }

        if (element.equals(LDMLConstants.MONTH)) {
            if (completion_month == null) {
                completion_month = createNumericStringArray(13);
            }
            return completion_month;
        }

        if (element.equals(LDMLConstants.ERA)) {
            if (completion_era == null) {
                completion_era = createNumericStringArray(2);
                completion_era_j = createNumericStringArray(235);
            }
            String type = XPPUtil.getAttributeValue(xpath, LDMLConstants.CALENDAR, LDMLConstants.TYPE);
            if (type != null && type.equals("japanese")) {
                return completion_era_j;
            }
            return completion_era;
        }

        if (element.equals(LDMLConstants.CYCLIC_NAME)) {
            if (completion_num60 == null) {
                completion_num60 = createNumericStringArray(60);
                completion_num12 = createNumericStringArray(12);
            }
            String type = XPPUtil.getAttributeValue(xpath, LDMLConstants.CYCLIC_NAME_SET, LDMLConstants.TYPE);
            if (type != null && (type.equals("dayParts") || type.equals("zodiacs"))) {
                return completion_num12;
            }
            return completion_num60;
        }

        if (element.equals(LDMLConstants.QUARTER)) {
            if (completion_q == null) {
                completion_q = createNumericStringArray(4);
            }
            return completion_q;
        }

        log.warning("No known completion for " + element);
        return null;
    }

    private Map<String, String> getElementsMap(LDML2ICUInputLocale loc, String element, String xpath,
        boolean fromResolved) {
        Map<String, String> map = new TreeMap<String, String>();
        CLDRFile whichFile;
        if (fromResolved) {
            whichFile = loc.resolved();
        } else {
            whichFile = loc.getFile();
        }

        String origXpath = xpath;
        for (Iterator<String> iter = whichFile.iterator(xpath); iter.hasNext();) {
            xpath = iter.next();
            if (loc.isPathNotConvertible(whichFile, xpath)) {
                continue;
            }

            String name = XPPUtil.getXpathName(xpath);
            String val = whichFile.getStringValue(xpath);
            String caltype = XPPUtil.getAttributeValue(xpath, LDMLConstants.CALENDAR, LDMLConstants.TYPE);
            String type = XPPUtil.getAttributeValue(xpath, name, LDMLConstants.TYPE);
            String yeartype = XPPUtil.getAttributeValue(xpath, name, LDMLConstants.YEARTYPE);

            if (name.equals(LDMLConstants.DAY)) {
                map.put(LDMLUtilities.getDayIndexAsString(type), val);
            } else if (name.equals(LDMLConstants.MONTH)) {
                if (caltype.equals("hebrew") && type.equals("7") && yeartype != null && yeartype.equals("leap")) {
                    type = "14"; // Extra month name for hebrew Adar II in leap years
                }
                map.put(LDMLUtilities.getMonthIndexAsString(type), val);
            } else if (name.equals(LDMLConstants.MONTH_PATTERN)) {
                map.put(type, val);
            } else if (name.equals(LDMLConstants.ERA)) {
                map.put(type, val);
            } else if (name.equals(LDMLConstants.CYCLIC_NAME)) {
                map.put(LDMLUtilities.getMonthIndexAsString(type), val); // misnamed, just subtracts 1 from the 1-based
                                                                         // numeric type value
            } else if (name.equals(LDMLConstants.QUARTER)) {
                map.put(LDMLUtilities.getMonthIndexAsString(type), val);
            } else if (name.equals(LDMLConstants.ALIAS)) {
                if (fromResolved) {
                    continue; // OK - inherits .
                }

                log.error("Encountered unknown alias <res:" + fromResolved + " - " + xpath + " / " + name
                    + "> subelement: " + name);
                System.exit(-1);
            } else {
                log.error("Encountered unknown <res:" + fromResolved + " - " + xpath + " / " + name + "> subelement: "
                    + name);
                System.exit(-1);
            }
        }

        Set<String> completion = null;
        if (!element.equals(LDMLConstants.MONTH_PATTERN)) {
            completion = getSetCompletion(loc, element, xpath);
        }
        if (completion != null) {
            for (String type : completion) {
                xpath = origXpath + "/" + element + "[@type=\"" + type + "\"]";
                if (loc.isPathNotConvertible(whichFile, xpath)) {
                    continue;
                }
                String name = XPPUtil.getXpathName(xpath);
                String val = whichFile.getStringValue(xpath);
                if (val == null) {
                    continue;
                }

                if (name.equals(LDMLConstants.DAY)) {
                    map.put(LDMLUtilities.getDayIndexAsString(type), val);
                } else if (name.equals(LDMLConstants.MONTH)) {
                    map.put(LDMLUtilities.getMonthIndexAsString(type), val);
                } else if (name.equals(LDMLConstants.ERA)) {
                    map.put(type, val);
                } else if (name.equals(LDMLConstants.CYCLIC_NAME)) {
                    map.put(LDMLUtilities.getMonthIndexAsString(type), val); // misnamed, just subtracts 1 from the
                                                                             // 1-based numeric type value
                } else if (name.equals(LDMLConstants.QUARTER)) {
                    map.put(LDMLUtilities.getMonthIndexAsString(type), val);
                } else {
                    throw new InternalError("Unknown name " + name);
                }
            }
        }

        return map;
    }

    public static int getMillis(String time) {
        String[] strings = time.split(":"); // time is in hh:mm format
        int hours = Integer.parseInt(strings[0]);
        int minutes = Integer.parseInt(strings[1]);
        return (hours * 60 + minutes) * 60 * 1000;
    }

    private Resource parseEras(LDML2ICUInputLocale loc, String xpath) {
        ResourceTable table = new ResourceTable();
        Resource current = null;
        table.name = LDMLConstants.ERAS;

        // if the whole thing is an alias
        if ((current = getAliasResource(loc, xpath)) != null) {
            current.name = table.name;
            return current;
        }

        // if the whole node is marked draft then
        // don't write anything
        final String stuff[] = { LDMLConstants.DEFAULT, LDMLConstants.ERAABBR, LDMLConstants.ERANAMES,
            LDMLConstants.ERANARROW, };
        String origXpath = xpath;
        for (int jj = 0; jj < stuff.length; jj++) {
            String name = stuff[jj];
            xpath = origXpath + "/" + name;
            if (loc.isPathNotConvertible(xpath)) {
                continue;
            }

            Resource res = null;
            if (name.equals(LDMLConstants.ALIAS)) {
                res = parseAliasResource(loc, xpath);
                res.name = table.name;
                return res;
            }

            if (name.equals(LDMLConstants.DEFAULT)) {
                res = getDefaultResource(loc, xpath, name);
            } else if (name.equals(LDMLConstants.ERAABBR)) {
                res = parseEra(loc, xpath, LDMLConstants.ABBREVIATED);
            } else if (name.equals(LDMLConstants.ERANAMES)) {
                res = parseEra(loc, xpath, LDMLConstants.WIDE);
            } else if (name.equals(LDMLConstants.ERANARROW)) {
                res = parseEra(loc, xpath, LDMLConstants.NARROW);
            } else {
                log.error("Encountered unknown <" + xpath + "> subelement: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    table.first = res;
                    current = res.end();
                } else {
                    current.next = res;
                    current = res.end();
                }
                res = null;
            }
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    private Resource parseEra(LDML2ICUInputLocale loc, String xpath, String name) {
        ResourceArray array = new ResourceArray();
        Resource current = null;
        array.name = name;
        String resName = LDMLConstants.ERA;

        // if the whole node is marked draft then
        // don't write anything
        if (loc.isPathNotConvertible(xpath)) {
            return null;
        }

        // if the whole thing is an alias
        if ((current = getAliasResource(loc, xpath)) != null) {
            current.name = array.name;
            return current;
        }

        Map<String, String> map = getElementsMap(loc, resName, xpath, false);
        if (map.size() == 0) {
            log.info("No vals, exiting " + xpath);
            return null;
        }

        Map<String, String> defMap = null;
        if (loc.resolved() != null) {
            defMap = getElementsMap(loc, resName, xpath, true);
        }
        Set<String> allThings = new TreeSet<String>();
        allThings.addAll(map.keySet());
        if (defMap != null) {
            allThings.addAll(defMap.keySet());
        }

        // / "special" hack for japanese narrow. If so, we'll have an alternate
        // set on standby.
        Map<String, String> nonNarrow = null;
        boolean isJapaneseNarrow = xpath.equals("//ldml/dates/calendars/calendar[@type=\"japanese\"]/eras/eraNarrow");
        if (isJapaneseNarrow) {
            nonNarrow = getElementsMap(loc, resName, xpath.replaceAll("eraNarrow", "eraAbbr"), true); // will NOT
                                                                                                      // fallback from
            // specials.
            // log.info("xpath: " + xpath + ", resName: " + resName +
            // " - needs japanese hack.");
            allThings.addAll(nonNarrow.keySet());
        }

        if (map.size() > 0) {
            for (int i = 0; i < allThings.size(); i++) {
                String key = Integer.toString(i);
                ResourceString res = new ResourceString();
                res.val = map.get(key);
                if (res.val == null && defMap != null) {
                    res.val = defMap.get(key);
                    if (verboseFallbackComments && res.val != null) {
                        res.smallComment = " fallback";
                    }
                }
                if (res.val == null && nonNarrow != null) {
                    res.val = nonNarrow.get(key);
                    if (res.val != null) {
                        res.smallComment = "(abbr.)";
                    }
                }
                if (res.val == null) {
                    log.error("Could not get full " + resName + " array at " + xpath + " -  Missing #" + key
                        + ".  Only found " + map.size() + " items (" + allThings.size()
                        + " including inherited). Fatal error exiting.");
                    // NB: see workaround for Japanese-narrow above.
                    throw new InternalError("data problem");
                }

                // array of unnamed strings
                if (res.val != null) {
                    if (current == null) {
                        current = array.first = res;
                    } else {
                        current.next = res;
                        current = current.next;
                    }
                }
            }
        }

        if (array.first != null) {
            return array;
        }

        return null;
    }

    private Resource parseCyclicNameSets(LDML2ICUInputLocale loc, String xpath) {
        ResourceTable table = new ResourceTable();
        Resource current = null;
        table.name = LDMLConstants.CYCLIC_NAME_SETS;

        // if the whole thing is an alias
        if ((current = getAliasResource(loc, xpath)) != null) {
            current.name = table.name;
            return current;
        }

        String origXpath = xpath;
        xpath = origXpath + "/" + LDMLConstants.CYCLIC_NAME_SET;

        Set<String> nameSetTypes = loc.getByType(xpath, LDMLConstants.CYCLIC_NAME_SET);
        for (String nameSetType : nameSetTypes) {
            String subXpath = xpath + "[@type=\"" + nameSetType + "\"]";
            // skip invalid & draft paths
            if (loc.isPathNotConvertible(subXpath)) {
                continue;
            }
            Resource res = parseCyclicNameSet(loc, subXpath);
            if (res != null) {
                if (current == null) {
                    current = table.first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
            }
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    private Resource parseCyclicNameSet(LDML2ICUInputLocale loc, String xpath) {
        ResourceTable table = new ResourceTable();
        Resource current = null;
        table.name = XPPUtil.getAttributeValue(xpath, LDMLConstants.CYCLIC_NAME_SET, LDMLConstants.TYPE);

        // if the whole thing is an alias
        if ((current = getAliasResource(loc, xpath)) != null) {
            current.name = table.name;
            return current;
        }

        String origXpath = xpath;
        xpath = origXpath + "/" + LDMLConstants.CYCLIC_NAME_CONTEXT;

        Set<String> contextTypes = loc.getByType(xpath, LDMLConstants.CYCLIC_NAME_CONTEXT);
        for (String contextType : contextTypes) {
            String subXpath = xpath + "[@type=\"" + contextType + "\"]";
            // skip invalid & draft paths
            if (loc.isPathNotConvertible(subXpath)) {
                continue;
            }
            Resource res = parseContext(loc, subXpath);
            if (res != null) {
                if (current == null) {
                    current = table.first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
            }
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    private boolean isNodeNotConvertible(Node node, StringBuilder xpath) {
        return isNodeNotConvertible(node, xpath, false, false);
    }

    private boolean isNodeNotConvertible(Node node, StringBuilder xpath, boolean isCollation, boolean isNodeFromParent) {
        // only deal with leaf nodes!
        // Here we assume that the CLDR files are normalized
        // and that the draft attributes are only on leaf nodes
        if (LDMLUtilities.areChildrenElementNodes(node) && !isCollation) {
            return false;
        }

        if (isNodeFromParent) {
            return false;
        }

        return !xpathListContains(xpath.toString());
    }

    public boolean xpathListContains(String xpath) {
        return _xpathList.contains(xpath);
    }

    public Node getVettedNode(Document fullyResolvedDoc, Node parent, String childName, StringBuilder xpath,
        boolean ignoreDraft) {

        String ctx = "./" + childName;
        NodeList list = LDMLUtilities.getNodeList(parent, ctx);
        int saveLength = xpath.length();
        Node ret = null;
        if (list == null || list.getLength() < 0) {
            if (fullyResolvedDoc != null) {
                int oldLength = xpath.length();
                xpath.append("/");
                xpath.append(childName);
                // try from fully resolved
                list = LDMLUtilities.getNodeList(fullyResolvedDoc, xpath.toString());
                // we can't depend on isNodeNotConvertible to return the correct
                // data since xpathList will not contain xpaths of nodes from
                // parent so we just return the first one we encounter.
                // This has a side effect of ignoring the config specifiation!
                if (list != null && list.getLength() > 0) {
                    ret = list.item(0);
                }
                xpath.setLength(oldLength);
            }
        } else {
            // getVettedNode adds the node name of final node to xpath.
            // chop off the final node name from xpath.
            int end = childName.lastIndexOf('/');
            if (end > 0) {
                xpath.append('/');
                xpath.append(childName.substring(0, end));
            }
            ret = getVettedNode(list, xpath, ignoreDraft);
        }

        xpath.setLength(saveLength);
        return ret;
    }

    private Node getVettedNode(NodeList list, StringBuilder xpath, boolean ignoreDraft) {
        Node node = null;
        int oldLength = xpath.length();
        for (int i = 0; i < list.getLength(); i++) {
            node = list.item(i);
            getXPath(node, xpath);
            if (isNodeNotConvertible(node, xpath)) {
                xpath.setLength(oldLength);
                node = null;
                continue;
            }
            break;
        }

        xpath.setLength(oldLength);
        return node;
    }

    private Resource parseAmPm(LDML2ICUInputLocale loc, String xpath) {
        // if the whole thing is an alias
        Resource current = new Resource();
        if ((current = getAliasResource(loc, xpath)) != null) {
            current.name = AM_PM_MARKERS;
            // if dayPeriods is an alias, then we force AmPmMarkers to be an alias, too
            String val = ((ResourceAlias) current).val;
            ((ResourceAlias) current).val = val.replace(LDMLConstants.DAYPERIODS, AM_PM_MARKERS);
            return current;
        }
        String[] AMPM = { LDMLConstants.AM, LDMLConstants.PM };
        ResourceString[] strs = new ResourceString[AMPM.length];
        String[] paths = new String[AMPM.length];
        Resource first = null;
        int validCount = 0;
        for (int i = 0; i < AMPM.length; i++) {
            strs[i] = new ResourceString();
            first = ResourceString.addAfter(first, strs[i]);
            paths[i] = xpath + "/"
                + LDMLConstants.DAYPERIOD_CONTEXT + "[@" + LDMLConstants.TYPE + "=\"" + LDMLConstants.FORMAT + "\"]/"
                + LDMLConstants.DAYPERIOD_WIDTH + "[@" + LDMLConstants.TYPE + "=\"" + LDMLConstants.WIDE + "\"]/"
                + LDMLConstants.DAYPERIOD + "[@" + LDMLConstants.TYPE + "=\"" + AMPM[i] + "\"]";
            if (!loc.isPathNotConvertible(paths[i])) {
                strs[i].val = loc.getFile().getStringValue(paths[i]);
                if (strs[i].val != null) {
                    validCount++;
                }
            }
        }

        if (validCount == 0) {
            return null;
        }

        if (validCount < AMPM.length) {
            for (int i = 0; i < AMPM.length; i++) {
                if (strs[i].val == null && !loc.isPathNotConvertible(loc.resolved(), paths[i])) {
                    strs[i].val = loc.resolved().getStringValue(paths[i]);
                    if (strs[i].val != null) {
                        if (verboseFallbackComments) {
                            strs[i].smallComment = " fallback";
                        }
                        validCount++;
                    }
                }
            }
        }

        if (validCount != AMPM.length) {
            throw new InternalError("On " + xpath + " (AMPM) - need " + AMPM.length + " strings but only have "
                + validCount + " after inheritance.");
        }

        // ok, set up the res
        ResourceArray arr = new ResourceArray();
        arr.name = AM_PM_MARKERS;
        arr.first = first;
        return arr;
    }

    // TODO figure out what to do for alias, draft and alt elements
    private static final String STD_SUFFIX = "[@type=\"standard\"]/pattern[@type=\"standard\"]";

    private static final String[] dtf_paths = new String[] {
        "timeFormats/timeFormatLength[@type=\"full\"]/timeFormat" + STD_SUFFIX,
        "timeFormats/timeFormatLength[@type=\"long\"]/timeFormat" + STD_SUFFIX,
        "timeFormats/timeFormatLength[@type=\"medium\"]/timeFormat" + STD_SUFFIX,
        "timeFormats/timeFormatLength[@type=\"short\"]/timeFormat" + STD_SUFFIX,
        "dateFormats/dateFormatLength[@type=\"full\"]/dateFormat" + STD_SUFFIX,
        "dateFormats/dateFormatLength[@type=\"long\"]/dateFormat" + STD_SUFFIX,
        "dateFormats/dateFormatLength[@type=\"medium\"]/dateFormat" + STD_SUFFIX,
        "dateFormats/dateFormatLength[@type=\"short\"]/dateFormat" + STD_SUFFIX,
        "dateTimeFormats/dateTimeFormatLength[@type=\"medium\"]/dateTimeFormat" + STD_SUFFIX,
        "dateTimeFormats/dateTimeFormatLength[@type=\"full\"]/dateTimeFormat" + STD_SUFFIX,
        "dateTimeFormats/dateTimeFormatLength[@type=\"long\"]/dateTimeFormat" + STD_SUFFIX,
        "dateTimeFormats/dateTimeFormatLength[@type=\"medium\"]/dateTimeFormat" + STD_SUFFIX,
        "dateTimeFormats/dateTimeFormatLength[@type=\"short\"]/dateTimeFormat" + STD_SUFFIX, };

    private Resource parseDTF(LDML2ICUInputLocale loc, String xpath) {
        log.setStatus(loc.getLocale());

        // TODO change the ICU format to reflect LDML format
        /*
         * The prefered ICU format would be timeFormats{ default{} full{} long{} medium{} short{} .... } dateFormats{
         * default{} full{} long{} medium{} short{} ..... } dateTimeFormats{ standard{} .... }
         */

        ResourceArray arr = new ResourceArray();
        String[] theArray = dtf_paths;
        arr.name = DTP;
        Resource current = null;
        ResourceString strs[] = new ResourceString[theArray.length];
        String nsov[] = new String[theArray.length];

        GroupStatus status = parseGroupWithFallback(loc, xpath, theArray, strs);
        if (GroupStatus.EMPTY == status) {
            // TODO: cldrbug #2188: What follows is a hack because of
            // mismatch between CLDR & ICU format, need to do something
            // better for next versions of CLDR (> 1.7) & ICU (> 4.2). If
            // any dateFormats/dateFormatLength,
            // timeFormats/timeFormatLength, or
            // dateTimeFormats/dateTimeFormatLength items are present,
            // status != GroupStatus.EMPTY and we don't get here. If we do
            // get here, then dateFormats and timeFormats elements are empty
            // or aliased, and dateTimeFormats has at least no
            // dateTimeFormats items, and is probably aliased (currently in
            // this case it is always aliased, and this only happens in
            // root). We need to get an alias from one of these elements
            // (for ICU format we need to create a single alias covering all
            // three of these elements). However, parseAliasResource doesn't
            // know how to make an alias from the dateFormats or timeFormats
            // elements (since there is no direct match in ICU to either of
            // these alone). It does know how from the dateTimeFormats, so
            // we will try that. This would fail if dateTimeFormats were not
            // aliased when dateFormats and timeFormats both were, but that
            // does not happen currently.
            //
            Resource alias = parseAliasResource(loc, xpath + "/" + LDMLConstants.DATE_TIME_FORMATS + "/"
                + LDMLConstants.ALIAS);
            if (alias != null) {
                alias.name = DTP;
            }
            return alias;
        }

        if (GroupStatus.SPARSE == status) {
            // Now, we have a problem.
            String type = XPPUtil.getAttributeValue(xpath, LDMLConstants.CALENDAR, LDMLConstants.TYPE);
            if (!type.equals("gregorian")) {
                log.info(loc.getLocale() + " " + xpath
                    + " - some items are missing, attempting fallback from gregorian");
                ResourceString gregstrs[] = new ResourceString[theArray.length];
                GroupStatus gregstatus = parseGroupWithFallback(loc,
                    xpath.replaceAll("\"" + type + "\"", "\"gregorian\""), theArray, gregstrs);
                if ((gregstatus != GroupStatus.EMPTY) && (gregstatus != GroupStatus.SPARSE)) {
                    // They have something, let's see if it is enough;
                    for (int j = 0; j < theArray.length; j++) {
                        if (strs[j].val == null && gregstrs[j].val != null) {
                            strs[j].val = gregstrs[j].val;
                            strs[j].smallComment = " fallback from 'gregorian' ";
                        }
                    }
                }
            }
        }

        // Now determine if any Numbering System Overrides are present
        for (int i = 0; i < theArray.length; i++) {
            XPathParts xpp = new XPathParts();
            String aPath = xpath + "/" + dtf_paths[i];
            if (loc.getFile().isHere(aPath)) {
                String fullPath = loc.getFile().getFullXPath(aPath);
                xpp.set(fullPath);
                String numbersOverride = xpp.findAttributeValue(LDMLConstants.PATTERN, LDMLConstants.NUMBERS);
                if (numbersOverride != null) {
                    nsov[i] = numbersOverride;
                }
            }
        }

        // Glue pattern default
        ResourceString res = getDefaultResourceWithFallback(loc, xpath + "/dateTimeFormats/" + LDMLConstants.DEFAULT,
            LDMLConstants.DEFAULT);
        int glueIndex = 8;
        if (res != null && res.val.trim().equalsIgnoreCase("full")) {
            glueIndex += 1;
        }
        if (res != null && res.val.trim().equalsIgnoreCase("long")) {
            glueIndex += 2;
        }
        if (res != null && res.val.trim().equalsIgnoreCase("medium")) {
            glueIndex += 3;
        }
        if (res != null && res.val.trim().equalsIgnoreCase("short")) {
            glueIndex += 4;
        }
        strs[8].val = strs[glueIndex].val;

        // write out the data
        int n = 0;
        for (ResourceString str : strs) {
            if (str.val == null) {
                log.error(xpath + " - null value at " + n);
                System.exit(-1);
            }

            if (nsov[n] != null) {
                // We have a numbering system override - output an array containing the override
                ResourceString nso = new ResourceString();
                nso.val = nsov[n];

                ResourceArray nso_array = new ResourceArray();
                nso_array.first = str;
                str.next = nso;

                if (current == null) {
                    current = arr.first = nso_array;
                } else {
                    current.next = nso_array;
                    current = current.next;
                }
            } else {
                // Just a normal pattern - output a string
                if (current == null) {
                    current = arr.first = str;
                } else {
                    current.next = str;
                    current = current.next;
                }
            }
            n++;
        }

        if (arr.first != null) {
            return arr;
        }

        return null;
    }

    private Resource parseNumbers(LDML2ICUInputLocale loc, String xpath) {
        Resource current = null, first = null;
        boolean writtenNumberElements = false;
        boolean writtenCurrencyFormatPlurals = false;
        boolean writtenCurrencies = false;
        boolean writtenCurrencyPlurals = false;
        boolean writtenCurrencySpacing = false;

        String origXpath = xpath;
        String names[] = { LDMLConstants.ALIAS, LDMLConstants.DEFAULT, LDMLConstants.SYMBOLS,
            LDMLConstants.DECIMAL_FORMATS, LDMLConstants.PERCENT_FORMATS, LDMLConstants.SCIENTIFIC_FORMATS,
            LDMLConstants.CURRENCY_FORMATS, LDMLConstants.CURRENCIES,
            // Currencies appears twice so we can handle the plurals.
            LDMLConstants.CURRENCIES, LDMLConstants.DEFAULT_NUMBERING_SYSTEM, LDMLConstants.OTHER_NUMBERING_SYSTEMS };
        for (String name : names) {
            xpath = origXpath + "/" + name;
            if (loc.isPathNotConvertible(xpath)) {
                continue;
            }

            Resource res = null;
            if (name.equals(LDMLConstants.ALIAS)) {
                if (!loc.getFile().isHere(xpath)) {
                    continue;
                }
                res = parseAliasResource(loc, xpath);
                res.name = name;
                return res;
            }

            if (name.equals(LDMLConstants.DEFAULT)) {
                if (!loc.getFile().isHere(xpath)) {
                    continue;
                }
                res = getDefaultResource(loc, xpath, name);
            } else if (name.equals(LDMLConstants.SYMBOLS) || name.equals(LDMLConstants.DECIMAL_FORMATS)
                || name.equals(LDMLConstants.PERCENT_FORMATS) || name.equals(LDMLConstants.SCIENTIFIC_FORMATS)
                || name.equals(LDMLConstants.CURRENCY_FORMATS) || name.equals(LDMLConstants.DEFAULT_NUMBERING_SYSTEM) ||
                name.equals(LDMLConstants.OTHER_NUMBERING_SYSTEMS)) {
                if (writtenNumberElements == false) {
                    Resource ne = parseNumberElements(loc, origXpath);
                    res = ne;
                    writtenNumberElements = true;

                } else if (writtenCurrencyFormatPlurals == false) {
                    res = parseCurrencyFormatPlurals(loc, origXpath);
                    writtenCurrencyFormatPlurals = true;
                } else if (writtenCurrencySpacing == false) {
                    res = parseCurrencySpacing(loc, origXpath);
                    writtenCurrencySpacing = true;
                }
            } else if (name.equals(LDMLConstants.CURRENCIES)) {
                if (writtenCurrencies == false) {
                    res = parseCurrencies(loc, xpath);
                    writtenCurrencies = true;
                } else if (writtenCurrencyPlurals == false) {
                    res = parseCurrencyPlurals(loc, origXpath);
                    writtenCurrencyPlurals = true;
                }
            } else {
                log.error("Encountered unknown <" + xpath + "> subelement: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    first = res;
                    current = res.end();
                } else {
                    current.next = res;
                    current = res.end();
                }
                res = null;
            }
        }

        if (first != null) {
            return first;
        }

        return null;
    }

    private Resource parseNumberElements(LDML2ICUInputLocale loc, String xpath) {

        String[] numSystems = { "latn" };
        if (supplementalDataInfo != null) {
            numSystems = supplementalDataInfo.getNumberingSystems().toArray(new String[0]);
        }
        Resource current = null;
        ResourceTable numElements = new ResourceTable();
        numElements.name = NUMBER_ELEMENTS;

        Resource defaultNS = parseDefaultNumberingSystem(loc, xpath);
        if (defaultNS != null) {
            numElements.first = defaultNS;
            current = defaultNS;
        }

        String[] otherNSTags = { LDMLConstants.NATIVE, LDMLConstants.TRADITIONAL, LDMLConstants.FINANCE };

        for (String tag : otherNSTags) {
            Resource otherNS = parseOtherNumberingSystem(loc, xpath, tag);
            if (otherNS != null) {
                if (current != null) {
                    current.next = otherNS;
                } else {
                    numElements.first = otherNS;
                }
                current = otherNS;
            }
        }

        for (String ns : numSystems) {
            Resource syms = parseSymbols(loc, ns, xpath + "/" + LDMLConstants.SYMBOLS);
            Resource formats = parseNumberFormats(loc, ns, xpath);

            if (syms != null || formats != null) {
                ResourceTable nsTable = new ResourceTable();
                nsTable.name = ns;
                Resource current2 = null;

                if (syms != null) {
                    nsTable.first = syms;
                    current2 = syms;
                }

                if (formats != null) {
                    if (current2 == null) {
                        nsTable.first = formats;
                    } else {
                        current2.next = formats;
                    }
                }

                if (current != null) {
                    current.next = nsTable;
                } else {
                    numElements.first = nsTable;
                }

                current = nsTable;
            }
        }

        if (current != null) {
            return numElements;
        }

        return null;
    }

    private Resource parseUnits(LDML2ICUInputLocale loc, String tableName, String altValue) {
        String xpath = "//ldml/" + LDMLConstants.UNITS;

        ResourceTable unitsTable = new ResourceTable();
        unitsTable.name = tableName;
        Resource current = null;
        Resource first = null;

        // if the whole thing is an alias
        Resource alias = null;
        if ((alias = getAliasResource(loc, xpath.toString())) != null) {
            alias.name = tableName;
            return alias;
        }

        String origXpath = xpath;
        String names[] = { LDMLConstants.ALIAS, LDMLConstants.UNIT, LDMLConstants.SPECIAL };
        for (String name : names) {
            xpath = origXpath + "/" + name;
            if (loc.isPathNotConvertible(xpath)) {
                continue;
            }

            Resource res = null;
            if (name.equals(LDMLConstants.ALIAS)) {
                if (!loc.getFile().isHere(xpath)) {
                    continue;
                }
                res = parseAliasResource(loc, xpath);
                res.name = name;
                return res;
            }

            if (name.equals(LDMLConstants.UNIT)) {
                res = parseUnit(loc, xpath, altValue);
            } else if (name.equals(LDMLConstants.SPECIAL)) {
                res = parseSpecialElements(loc, xpath);
            } else {
                log.error("Encountered unknown <" + xpath + "> subelement: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    first = res;
                } else {
                    current.next = res;
                }
                current = res;
                res = null;
            }
        }

        if (first != null) {
            unitsTable.first = first;
            return unitsTable;
        }

        return null;
    }

    private Resource parseUnit(LDML2ICUInputLocale loc, String xpath, String altValue) {
        Map<String, ResourceTable> tableMap = new HashMap<String, ResourceTable>();
        Resource first = null;
        Resource last = null;

        for (Iterator<String> iter = loc.getFile().iterator(xpath); iter.hasNext();) {
            String localxpath = iter.next();
            if (altValue == null && loc.isPathNotConvertible(localxpath)) {
                continue;
            }

            String name = XPPUtil.getXpathName(localxpath);
            if (name.equals(LDMLConstants.UNIT)) {
                log.error("Unknown item " + localxpath);
                continue;
            }

            if (name.equals(LDMLConstants.UNIT_PATTERN)) {
                String currentAltValue = XPPUtil.getAttributeValue(localxpath, LDMLConstants.ALT);
                if (altValue != null) {
                    if (currentAltValue == null || !altValue.equals(currentAltValue)) {
                        continue;
                    }
                    // OK
                } else if (altValue == null && currentAltValue != null) {
                    continue;
                }

                String parentName = XPPUtil.getXpathName(localxpath, -2);
                String tableName = XPPUtil.getAttributeValue(localxpath, parentName, LDMLConstants.TYPE);
                ResourceTable current = tableMap.get(tableName);
                if (current == null) {
                    current = new ResourceTable();
                    current.name = tableName;
                    tableMap.put(tableName, current);
                    // Hook everything up, because we need to
                    // return the sibling chain.
                    if (last == null) {
                        first = current;
                    } else {
                        last.next = current;
                    }
                    last = current;
                }

                ResourceString str = new ResourceString();
                str.name = XPPUtil.getAttributeValue(localxpath, name, LDMLConstants.COUNT);
                str.val = loc.getFile().getStringValue(localxpath);
                current.appendContents(str);
            } else {
                log.error("Unknown item " + localxpath);
                continue;
            }
        }

        return first;
    }

    enum GroupStatus {
        EMPTY, SPARSE, FALLBACK, COMPLETE
    }

    /**
     * Parse some things, with fallback behavior
     * 
     * @param loc
     * @param xpathBase
     *            the base xpath
     * @param xpaths
     *            the xpath (with slash before) to append to the base
     * @param res
     *            output array to hold res strings. must be same size as xpaths
     * @return Will return the lowest possible value that applies to any item, or GROUP_EMPTY if no items could be
     *         filled in
     */
    private GroupStatus parseGroupWithFallback(LDML2ICUInputLocale loc, String xpathBase, String xpaths[],
        ResourceString res[]) {

        String[] values = new String[xpaths.length];
        boolean someNonDraft = false;
        boolean anyExtant = false;
        for (int i = 0; i < xpaths.length; i++) {
            String aPath = xpathBase + "/" + xpaths[i];
            if (loc.getFile().isHere(aPath)) {
                anyExtant = true;
                if (!loc.isPathNotConvertible(aPath)) {
                    values[i] = loc.getFile().getStringValue(aPath);
                    if (values[i] != null) {
                        someNonDraft = true;
                    }
                }
            }
        }

        GroupStatus status = GroupStatus.EMPTY;
        if (!anyExtant && !someNonDraft) {
            // log.warning("No " + xpathBase + " for " + loc.locale);
            return status;
        }

        if (someNonDraft == true) {
            status = GroupStatus.COMPLETE;
            for (int i = 0; i < xpaths.length; i++) {
                res[i] = new ResourceString();
                String temp = values[i];
                if (temp == null) {
                    String aPath = xpathBase + "/" + xpaths[i];
                    temp = loc.resolved().getStringValue(aPath);
                    if (temp != null) {
                        CLDRFile.Status fileStatus = new CLDRFile.Status();
                        String foundIn = loc.resolved().getSourceLocaleID(aPath, fileStatus);
                        if (verboseFallbackComments) {
                            res[i].smallComment = " From " + foundIn;
                        }
                        if (status != GroupStatus.SPARSE) {
                            status = GroupStatus.FALLBACK;
                        }
                        // log.warning("Fallback from " + foundIn + " in "
                        // + loc.locale + " / " + aPath);
                    } else {
                        log.info("Can't complete array for " + xpathBase + " at " + aPath);
                        status = GroupStatus.SPARSE;
                    }
                }
                res[i].val = temp;
            }
            return status;
        }

        return GroupStatus.EMPTY;
    }

    private String reviseAPath(LDML2ICUInputLocale loc, XPathParts xpp, String aPath) {
        // This is a clumsy way to do it, but the code for the converter is so convoluted...
        Set<String> paths = loc.getFile().getPaths(aPath, null, null);
        // We have all the paths that match, now. We prefer ones that have an
        // alt value that is a valid number system
        for (String path : paths) {
            String distinguishing = CLDRFile.getDistinguishingXPath(path, null, false);
            if (distinguishing.contains("@numberSystem")) {
                String alt = xpp.set(distinguishing).getAttributeValue(-1, "numberSystem");
                if (supplementalDataInfo.getNumberingSystems().contains(alt)) {
                    aPath = distinguishing;
                    break;
                }
            }
        }

        return aPath;
    }

    private static final String[] sym_paths = new String[] { LDMLConstants.DECIMAL, LDMLConstants.GROUP,
        LDMLConstants.LIST, LDMLConstants.PERCENT_SIGN,
        LDMLConstants.MINUS_SIGN, LDMLConstants.EXPONENTIAL, LDMLConstants.PER_MILLE, LDMLConstants.INFINITY,
        LDMLConstants.NAN, LDMLConstants.PLUS_SIGN, };

    private Resource parseSymbols(LDML2ICUInputLocale loc, String ns, String xpath) {
        ResourceTable tbl = new ResourceTable();
        tbl.name = LDMLConstants.SYMBOLS;
        Resource current = null;
        String pathToTest;

        for (String sym : sym_paths) {
            pathToTest = xpath + "[@numberSystem=\"" + ns + "\"]/" + sym;

            String value = loc.getFile().getStringValue(pathToTest);
            if (loc.isPathNotConvertible(pathToTest) || value == null) {
                continue;
            }

            ResourceString str = new ResourceString();
            str.name = sym;
            str.val = value;

            if (current == null) {
                tbl.first = str;
            } else {
                current.next = str;
            }
            current = str;
        }

        if (current != null) {
            return tbl;
        }

        return null;
    }

    private Resource parseCurrencyPlurals(LDML2ICUInputLocale loc, String xpath) {
        // This resource is a table of tables, with each subtable containing
        // the data for a particular currency. The structure of the XML file
        // is as follows:
        //
        // <ldml>
        // <numbers>
        // <currencies>
        // <currency type="ADP">
        // <displayName>Andorran Peseta</displayName>
        // <displayName count="one">Andorran peseta</displayName>
        // <displayName count="other">Andorran pesetas</displayName>
        // </currency>
        // <currency type="AED">
        // <displayName>United Arab Emirates Dirham</displayName>
        // <displayName count="one">UAE dirham</displayName>
        // <displayName count="other">UAE dirhams</displayName>
        // <symbol>AED</symbol>
        // </currency>
        // </currencies>
        // </numbers>
        // </ldml>
        //
        // For this resource, the only interesting parts are the "displayName"
        // elements that have a "count" attribute.
        //
        // The resulting resource for this particular example would look like this:
        //
        // CurrencyPlurals{
        // ADP{
        // one{"Andorran peseta"}
        // other{"Andorran pesetas"}
        // }
        // AED{
        // one{"UAE dirham"}
        // other{"UAE dirhams"}
        // }

        ResourceTable parentTable = new ResourceTable();
        parentTable.name = LDMLConstants.CURRENCY_PLURALS;
        String xpathCurrency = xpath + "/currencies/currency";

        // Since the leaf elements are not grouped by currency in the InputLocale
        // instance, this map will hold the table for each currency.
        Map<String, ResourceTable> tableMap = new HashMap<String, ResourceTable>();

        Resource last = null;
        for (Iterator<String> iter = loc.getFile().iterator(xpathCurrency); iter.hasNext();) {
            String localxpath = iter.next();
            if (loc.isPathNotConvertible(localxpath)) {
                continue;
            }

            String name = XPPUtil.getXpathName(localxpath);
            if (!name.equals(LDMLConstants.DISPLAY_NAME)) {
                continue;
            }

            // We only care about the elements with a "count" attribute.
            String count = XPPUtil.getAttributeValue(localxpath, name, LDMLConstants.COUNT);
            if (count != null) {
                String parentName = XPPUtil.getXpathName(localxpath, -2);
                String tableName = XPPUtil.getAttributeValue(localxpath, parentName, LDMLConstants.TYPE);
                ResourceTable current = tableMap.get(tableName);
                if (current == null) {
                    current = new ResourceTable();
                    current.name = tableName;
                    tableMap.put(tableName, current);
                    // If this is the first table, then update the
                    // start of the children in the parent table.
                    if (last == null) {
                        parentTable.first = current;
                    } else {
                        last.next = current;
                    }
                    last = current;
                }

                ResourceString str = new ResourceString();
                str.name = count;
                str.val = loc.getFile().getStringValue(localxpath);
                current.appendContents(str);
            }
        }

        if (parentTable.first != null) {
            return parentTable;
        }

        return null;
    }

    private Resource parseCurrencyFormatPlurals(LDML2ICUInputLocale loc, String xpath) {
        // This table contains formatting patterns for this locale's currency.
        // Each pattern is represented by a "unitPattern" element in the XML file.
        // Each pattern is represented as a string in the resource format, with
        // the name of the string being the value of the "count" attribute.

        ResourceTable table = new ResourceTable();
        table.name = LDMLConstants.CURRENCY_UNIT_PATTERNS;
        String xpathUnitPattern = xpath + "/currencyFormats[@numberSystem=\"latn\"]/unitPattern";
        for (Iterator<String> iter = loc.getFile().iterator(xpathUnitPattern); iter.hasNext();) {
            String localxpath = iter.next();
            if (loc.isPathNotConvertible(localxpath)) {
                continue;
            }
            String name = XPPUtil.getXpathName(localxpath);
            ResourceString str = new ResourceString();
            str.name = XPPUtil.getAttributeValue(localxpath, name, LDMLConstants.COUNT);
            str.val = loc.getFile().getStringValue(localxpath);
            table.appendContents(str);
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    private static final String[] CurrencySections = new String[] { LDMLConstants.CURRENCY_SPC_BEFORE,
        LDMLConstants.CURRENCY_SPC_AFTER };

    private Resource parseCurrencySpacing(LDML2ICUInputLocale loc, String xpath) {
        // This table contains formatting patterns for this locale's currency.
        // Syntax example in XML file:
        // <currencyFormats>
        // <currencySpacing>
        // <beforeCurrency>
        // <currencyMatch>[:letter:]</currencyMatch>
        // <surroundingMatch>[:digit:]</surroundingMatch>
        // <insertBetween> </insertBetween>
        // </beforeCurrency>
        // <afterCurrency>
        // <currencyMatch>[:letter:]</currencyMatch>
        // <surroundingMatch>[:digit:]</surroundingMatch>
        // <insertBetween> </insertBetween>
        // </afterCurrency>
        // </currencySpacing>
        // </currencyFormats>

        ResourceTable table = null;
        ResourceTable current = null;
        ResourceTable first = null;
        for (String section : CurrencySections) {
            // TODO: Parse currencySpacing by numbering system, right now using only "latn"
            String xpathUnitPattern = xpath + "/" + LDMLConstants.CURRENCY_FORMATS + "[@numberSystem=\"latn\"]/"
                + LDMLConstants.CURRENCY_SPACING + "/" + section;
            int count = 0;
            for (Iterator<String> iter = loc.getFile().iterator(xpathUnitPattern); iter.hasNext();) {
                String localxpath = iter.next();
                if (loc.isPathNotConvertible(localxpath)) {
                    continue;
                }

                if (table == null) {
                    table = new ResourceTable();
                    table.name = LDMLConstants.CURRENCY_SPACING;
                }

                if (count++ == 0) {
                    current = new ResourceTable();
                    current.name = section;
                    if (first == null) {
                        table.first = current;
                        first = current;
                    } else {
                        first.next = current;
                    }
                }

                String name = XPPUtil.getXpathName(localxpath);
                ResourceString str = new ResourceString();
                str.name = name;
                str.val = loc.getFile().getStringValue(localxpath);
                current.appendContents(str);
            }
        }

        if (table != null) {
            return table;
        }

        return null;
    }

    // TODO figure out what to do for alias, draft and alt elements
    private static final String[] numFmtKeys =
        new String[] { "decimalFormat", "currencyFormat", "percentFormat", "scientificFormat" };

    private Resource parseNumberFormats(LDML2ICUInputLocale loc, String ns, String xpath) {

        ResourceTable tbl = new ResourceTable();
        tbl.name = LDMLConstants.PATTERNS;
        Resource current = null;
        String pathToTest;

        for (String numFmtKey : numFmtKeys) {
            pathToTest = xpath + "/" + numFmtKey + "s[@numberSystem=\"" + ns + "\"]/" + numFmtKey + "Length/"
                + numFmtKey + STD_SUFFIX;
            String value = loc.getFile().getStringValue(pathToTest);
            if (loc.isPathNotConvertible(pathToTest) || value == null) {
                continue;
            }

            ResourceString str = new ResourceString();
            str.name = numFmtKey;
            str.val = value;

            if (current == null) {
                tbl.first = str;
            } else {
                current.next = str;
            }
            current = str;
        }

        if (current != null) {
            return tbl;
        }

        return null;
    }

    private Resource parseCurrencies(LDML2ICUInputLocale loc, String xpath) {
        ResourceTable table = new ResourceTable();
        Resource current = null;

        // if the whole node is marked draft then
        // don't write anything
        String origXpath = xpath;

        // collect a list of all currencies, ensure no dups.
        Set<String> currs = new HashSet<String>();
        for (Iterator<String> iter = loc.getFile().iterator(xpath); iter.hasNext();) {
            xpath = iter.next();
            String name = XPPUtil.getXpathName(xpath);
            if (loc.isPathNotConvertible(xpath)) {
                continue;
            }

            Resource res = null;
            if (name.equals(LDMLConstants.ALIAS)) {
                res = parseAliasResource(loc, xpath);
                res.name = name;
                return res;
            }

            if (name.equals(LDMLConstants.DEFAULT)) {
                res = getDefaultResource(loc, xpath, name);
            } else /* if (name.equals(LDMLConstants.CURRENCY)) */{
                String type = loc.findAttributeValue(xpath, LDMLConstants.TYPE);
                if ((type == null) || (type.equals("standard"))) {
                    continue;
                }

                if (currs.contains(type)) {
                    // log.warning("$$$ dup " + type);
                    continue; // dup
                }

                res = parseCurrency(loc, origXpath + "/currency[@type=\"" + type + "\"]", type);
                currs.add(type);
            }

            if (res != null) {
                if (current == null) {
                    table.first = res;
                    current = res.end();
                } else {
                    current.next = res;
                    current = res.end();
                }
                res = null;
            }
        }

        if (table.first != null) {
            // lookup only if needed
            table.name = keyNameMap.get(XPPUtil.getXpathName(origXpath));
            return table;
        }

        return null;
    }

    private static final String curr_syms[] = { LDMLConstants.SYMBOL, // 0
        LDMLConstants.DISPLAY_NAME, // 1
        LDMLConstants.PATTERN, // 2
        LDMLConstants.DECIMAL, // 3
        LDMLConstants.GROUP, // 4
    };

    private Resource parseCurrency(LDML2ICUInputLocale loc, String xpath, String type) {

        ResourceArray arr = new ResourceArray();
        arr.name = type;
        ResourceString strs[] = new ResourceString[curr_syms.length];
        GroupStatus status = parseGroupWithFallback(loc, xpath, curr_syms, strs);
        if (status == GroupStatus.EMPTY) {
            String full = loc.resolved().getFullXPath(xpath);
            String val = loc.resolved().getStringValue(xpath);
            log.warning("totally empty - Failed to parse: " + type + " at xpath " + xpath + " - full value " + full
                + " value " + val);
            return null;
        }

        // aliases - for sanity
        ResourceString symbol = strs[0];
        ResourceString displayName = strs[1];
        ResourceString pattern = strs[2];
        ResourceString decimal = strs[3];
        ResourceString group = strs[4];

        // 0 - symb
        if (symbol.val != null) {
            String choice = loc.getBasicAttributeValue(xpath + "/" + curr_syms[0], LDMLConstants.CHOICE);
            if (choice == null) {
                String fullPathInh = loc.resolved().getFullXPath(xpath + "/" + curr_syms[0]);
                if (fullPathInh != null) {
                    choice = XPPUtil.getAttributeValue(fullPathInh, LDMLConstants.CHOICE);
                }
            }
            if (choice != null && choice.equals("true") && !loc.isPathNotConvertible(xpath + "/symbol")) {
                symbol.val = "=" + symbol.val.replace('\u2264', '#').replace("&lt;", "<");
                if (symbol.smallComment != null) {
                    symbol.smallComment = symbol.smallComment + " - (choice)";
                } else {
                    symbol.smallComment = "(choice)";
                }
            }
        } else {
            symbol.val = type;
            symbol.smallComment = "===";
        }

        // 1 - disp
        if (displayName.val == null) {
            displayName.val = type;
            symbol.smallComment = "===";
        }

        arr.first = symbol;
        symbol.next = displayName;
        if (pattern.val != null || decimal.val != null || group.val != null) {
            boolean isPatternDup = false;
            boolean isDecimalDup = false;
            boolean isGroupDup = false;
            if (pattern.val == null) {
                pattern.val = loc
                    .getResolvedString("//ldml/numbers/currencyFormats[@numberSystem='latn']/currencyFormatLength/currencyFormat"
                        + STD_SUFFIX);
                isPatternDup = true;
                if (pattern.val == null) {
                    throw new RuntimeException("Could not get pattern currency resource!!");
                }
            }

            XPathParts xpp = new XPathParts();
            if (decimal.val == null) {
                String aPath = "//ldml/numbers/symbols/decimal";
                if (!asciiNumbers) {
                    aPath = reviseAPath(loc, xpp, aPath);
                }

                decimal.val = loc.getResolvedString(aPath);
                isDecimalDup = true;
                if (decimal.val == null) {
                    throw new RuntimeException("Could not get decimal currency resource!!");
                }
            }

            if (group.val == null) {
                String aPath = "//ldml/numbers/symbols/group";
                if (!asciiNumbers) {
                    aPath = reviseAPath(loc, xpp, aPath);
                }

                group.val = loc.getResolvedString(aPath);
                isGroupDup = true;
                if (group.val == null) {
                    throw new RuntimeException("Could not get group currency resource!!");
                }
            }

            ResourceArray elementsArr = new ResourceArray();
            pattern.comment = isPatternDup ? "Duplicated from NumberPatterns resource" : null;
            decimal.comment = isDecimalDup ? "Duplicated from NumberElements resource" : null;
            group.comment = isGroupDup ? "Duplicated from NumberElements resource" : null;

            elementsArr.first = pattern;
            pattern.next = decimal;
            decimal.next = group;
            if (displayName.val != null) {
                displayName.next = elementsArr;
            } else {
                log.warning("displayName and symbol not vetted/available for currency resource " + arr.name
                    + " not generating the resource");
            }
        }

        if (arr.first != null) {
            return arr;
        }

        return null;
    }

    /**
     * Shim. Transitions us from CLDRFile based processing to DOM.
     */
    public Resource parseCollations(LDML2ICUInputLocale loc, String xpath) {
        log.setStatus(loc.getLocale());
        if (loc.isNotOnDisk()) {
            // attempt to parse a 'fake' locale.
            Resource first = getAliasResource(loc, xpath);
            if (first != null) {
                first.name = LDMLConstants.COLLATIONS;
                return first;
            }

            // now, look for a default
            first = getDefaultResource(loc, xpath + "/" + LDMLConstants.DEFAULT, LDMLConstants.DEFAULT);
            if (first != null) {
                ResourceTable table = new ResourceTable();
                table.name = LDMLConstants.COLLATIONS;
                table.first = first;
                return table;
            }

            // now, look for aliases
            Set<String> collTypes = loc.getByType(xpath, LDMLConstants.COLLATION, LDMLConstants.TYPE);
            for (String type : collTypes) {
                Resource res = getAliasResource(loc, xpath + "/" + LDMLConstants.COLLATION + "[@type=\"" + type + "\"]");
                if (res != null) {
                    first = Resource.addAfter(first, res);
                } else {
                    throw new InternalError("FAIL: locale " + loc.getLocale()
                        + " not on disc, and non-alias collation " + type + " encountered.");
                }
            }

            return first; // could be null.
        }

        // parse using DOM-based code
        DocumentPair docPair = getDocumentPair(loc);
        Node collations = getTopNode(docPair.doc, LDMLConstants.COLLATIONS);
        if (collations == null) {
            throw new InternalError("Can't get top level collations node");
        }

        Resource table = parseCollations(collations, docPair.fullyResolvedDoc, new StringBuilder("//ldml"), true);
        if (table == null || (table.isEmpty() && table instanceof ResourceTable)) {
            log.warning(" warning: No collations found. Bundle will be empty.");
            return null;
        }

        return table;
    }

    public Resource parseCollations(Node root, Document fullyResolvedDoc, StringBuilder xpath,
        boolean checkIfConvertible) {
        ResourceTable table = new ResourceTable();
        Resource current = null;
        table.name = root.getNodeName();
        int savedLength = xpath.length();
        getXPath(root, xpath);
        int oldLength = xpath.length();

        // if the whole collation node is marked draft then
        // don't write anything
        if (isNodeNotConvertible(root, xpath)) {
            xpath.setLength(savedLength);
            return null;
        }

        current = table.first = null; // parseValidSubLocales(root, xpath);
        for (Node node = root.getFirstChild(); node != null; node = node.getNextSibling()) {
            if (node.getNodeType() != Node.ELEMENT_NODE) {
                continue;
            }

            String name = node.getNodeName();
            Resource res = null;
            if (name.equals(LDMLConstants.ALIAS)) {
                res = parseAliasResource(node, xpath);
                res.name = table.name;
                return res;
            }

            if (name.equals(LDMLConstants.DEFAULT)) {
                res = getDefaultResource(node, xpath, name);
            } else if (name.equals(LDMLConstants.COLLATION)) {
                res = parseCollation(node, fullyResolvedDoc, xpath, checkIfConvertible);
            } else {
                log.error("Encountered unknown <" + root.getNodeName() + "> subelement: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    current = table.first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
                res = null;
            }
            xpath.delete(oldLength, xpath.length());
        }

        xpath.delete(savedLength, xpath.length());
        if (table.first != null) {
            return table;
        }

        return null;
    }

    private Resource parseCollation(Node root, Document fullyResolvedDoc, StringBuilder xpath,
        boolean checkIfConvertible) {
        ResourceTable table = new ResourceTable();
        Resource current = null;
        table.name = LDMLUtilities.getAttributeValue(root, LDMLConstants.TYPE);
        int savedLength = xpath.length();
        getXPath(root, xpath);
        int oldLength = xpath.length();

        // if the whole collation node is marked draft then
        // don't write anything
        if (checkIfConvertible && isNodeNotConvertible(root, xpath, true, false)) {
            xpath.setLength(savedLength);
            return null;
        }

        lastStrengthSymbol = "";
        StringBuilder rules = new StringBuilder();
        for (Node node = root.getFirstChild(); node != null; node = node.getNextSibling()) {
            if (node.getNodeType() != Node.ELEMENT_NODE) {
                continue;
            }

            String name = node.getNodeName();
            Resource res = null;
            if (name.equals(LDMLConstants.ALIAS)) {
                res = parseAliasResource(node, xpath, true);
                res.name = table.name;
                return res;
            }

            if (name.equals(LDMLConstants.RULES)) {
                Node alias = LDMLUtilities.getNode(node, LDMLConstants.ALIAS, fullyResolvedDoc, xpath.toString());
                getXPath(node, xpath);
                if (alias != null) {
                    res = parseAliasResource(alias, xpath);
                } else {
                    rules.append(parseRules(node, xpath));
                }
            } else if (name.equals(LDMLConstants.SETTINGS)) {
                rules.append(parseSettings(node));
            } else if (name.equals(LDMLConstants.SUPPRESS_CONTRACTIONS)) {
                if (DEBUG) {
                    log.debug("");
                }
                int index = rules.length();
                rules.append("[suppressContractions ");
                rules.append(LDMLUtilities.getNodeValue(node));
                rules.append("]");
                if (DEBUG) {
                    log.debug(rules.substring(index));
                }
            } else if (name.equals(LDMLConstants.OPTIMIZE)) {
                rules.append("[optimize ");
                rules.append(LDMLUtilities.getNodeValue(node));
                rules.append("]");
            } else if (name.equals(LDMLConstants.BASE)) {
                // TODO Dont know what to do here
                // if (DEBUG)printXPathWarning(node, xpath);
                rules.append(parseBase(node, fullyResolvedDoc, xpath, oldLength));
            } else {
                log.error("Encountered unknown <" + root.getNodeName() + "> subelement: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    current = table.first = res;
                } else {
                    current.next = res;
                    current = current.next;
                }
                res = null;
            }
            xpath.delete(oldLength, xpath.length());
        }

        if (rules != null) {
            ResourceString str = new ResourceString();
            str.name = LDMLConstants.SEQUENCE;
            str.val = rules.toString();
            if (current == null) {
                current = table.first = str;
            } else {
                current.next = str;
                current = current.next;
            }
            str = new ResourceString();
            str.name = "Version";
            str.val = getLdmlVersion(); // "1.0"
            current.next = str;
        }

        xpath.delete(savedLength, xpath.length());
        if (table.first != null) {
            return table;
        }

        return null;
    }

    private String parseBase(Node node, Document fullyResolvedDoc, StringBuilder xpath, int oldLength) {
        String myxp = xpath.substring(0, oldLength);
        // backward compatibility
        String locale = LDMLUtilities.getNodeValue(node);
        if (locale == null) {
            locale = LDMLUtilities.getAttributeValue(node, LDMLConstants.LOCALE);
        }
        if (locale != null) {
            String fn = locale + ".xml";
            Document colDoc = LDMLUtilities.getFullyResolvedLDML(sourceDir, fn, false, false, false, true);
            Node col = LDMLUtilities.getNode(colDoc, myxp);
            if (col != null) {
                ResourceTable table = (ResourceTable) parseCollation(col, fullyResolvedDoc, new StringBuilder(myxp),
                    false);
                if (table != null) {
                    Resource current = table.first;
                    while (current != null) {
                        if (current instanceof ResourceString) {
                            ResourceString temp = (ResourceString) current;
                            if (temp.name.equals(LDMLConstants.SEQUENCE)) {
                                return temp.val;
                            }
                        }
                        current = current.next;
                    }
                } else {
                    log.warning("Locale (" + fn + ") Collation node could not be parsed for " + myxp);
                }
            } else {
                log.warning("Locale (" + fn + ") Could not find col from xpath: " + myxp);
            }
        } else {
            log.warning("Could not find locale from xpath: " + xpath.toString());
        }

        return "";
    }

    private StringBuilder parseSettings(Node node) {
        StringBuilder rules = new StringBuilder();

        String strength = LDMLUtilities.getAttributeValue(node, LDMLConstants.STRENGTH);
        if (strength != null) {
            rules.append(" [strength ");
            rules.append(getStrength(strength));
            rules.append("]");
        }

        String alternate = LDMLUtilities.getAttributeValue(node, LDMLConstants.ALTERNATE);
        if (alternate != null) {
            rules.append(" [alternate ");
            rules.append(alternate);
            rules.append("]");
        }

        String backwards = LDMLUtilities.getAttributeValue(node, LDMLConstants.BACKWARDS);
        if (backwards != null && backwards.equals("on")) {
            rules.append(" [backwards 2]");
        }

        String normalization = LDMLUtilities.getAttributeValue(node, LDMLConstants.NORMALIZATION);
        if (normalization != null) {
            rules.append(" [normalization ");
            rules.append(normalization);
            rules.append("]");
        }

        String caseLevel = LDMLUtilities.getAttributeValue(node, LDMLConstants.CASE_LEVEL);
        if (caseLevel != null) {
            rules.append(" [caseLevel ");
            rules.append(caseLevel);
            rules.append("]");
        }

        String caseFirst = LDMLUtilities.getAttributeValue(node, LDMLConstants.CASE_FIRST);
        if (caseFirst != null) {
            rules.append(" [caseFirst ");
            rules.append(caseFirst);
            rules.append("]");
        }

        String hiraganaQ = LDMLUtilities.getAttributeValue(node, LDMLConstants.HIRAGANA_Q);
        if (hiraganaQ == null) {
            // try the deprecated version
            hiraganaQ = LDMLUtilities.getAttributeValue(node, LDMLConstants.HIRAGANA_Q_DEP);
        }
        if (hiraganaQ != null) {
            rules.append(" [hiraganaQ ");
            rules.append(hiraganaQ);
            rules.append("]");
        }

        String numeric = LDMLUtilities.getAttributeValue(node, LDMLConstants.NUMERIC);
        if (numeric != null) {
            rules.append(" [numericOrdering ");
            rules.append(numeric);
            rules.append("]");
        }

        String reorder = LDMLUtilities.getAttributeValue(node, LDMLConstants.REORDER);
        if (reorder != null) {
            rules.append(" [reorder ");
            rules.append(reorder);
            rules.append("]");
        }

        return rules;
    }

    private static final TreeMap<String, String> collationMap = new TreeMap<String, String>();
    static {
        collationMap.put("first_tertiary_ignorable", "[first tertiary ignorable ]");
        collationMap.put("last_tertiary_ignorable", "[last tertiary ignorable ]");
        collationMap.put("first_secondary_ignorable", "[first secondary ignorable ]");
        collationMap.put("last_secondary_ignorable", "[last secondary ignorable ]");
        collationMap.put("first_primary_ignorable", "[first primary ignorable ]");
        collationMap.put("last_primary_ignorable", "[last primary ignorable ]");
        collationMap.put("first_variable", "[first variable ]");
        collationMap.put("last_variable", "[last variable ]");
        collationMap.put("first_non_ignorable", "[first regular]");
        collationMap.put("last_non_ignorable", "[last regular ]");
        // TODO check for implicit
        // collationMap.put("??", "[first implicit]");
        // collationMap.put("??", "[last implicit]");
        collationMap.put("first_trailing", "[first trailing ]");
        collationMap.put("last_trailing", "[last trailing ]");
    }

    private StringBuilder parseRules(Node root, StringBuilder xpath) {
        StringBuilder rules = new StringBuilder();

        for (Node node = root.getFirstChild(); node != null; node = node.getNextSibling()) {
            if (node.getNodeType() != Node.ELEMENT_NODE) {
                continue;
            }

            String name = node.getNodeName();
            if (name.equals(LDMLConstants.PC) || name.equals(LDMLConstants.SC) || name.equals(LDMLConstants.TC)
                || name.equals(LDMLConstants.QC) || name.equals(LDMLConstants.IC)) {
                Node lastVariable = LDMLUtilities.getNode(node, LDMLConstants.LAST_VARIABLE, null, null);
                if (lastVariable != null) {
                    addSpaceForDebug(rules);
                    rules.append(collationMap.get(lastVariable.getNodeName()));
                } else {
                    String data = getData(node, name);
                    rules.append(data);
                }
            } else if (name.equals(LDMLConstants.P) || name.equals(LDMLConstants.S) || name.equals(LDMLConstants.T)
                || name.equals(LDMLConstants.Q) || name.equals(LDMLConstants.I)) {
                Node lastVariable = LDMLUtilities.getNode(node, LDMLConstants.LAST_VARIABLE, null, null);
                if (lastVariable != null) {
                    addSpaceForDebug(rules);
                    rules.append(collationMap.get(lastVariable.getNodeName()));
                } else {
                    String data = getData(node, name);
                    rules.append(data);
                }
            } else if (name.equals(LDMLConstants.X)) {
                rules.append(parseExtension(node));
            } else if (name.equals(LDMLConstants.RESET)) {
                rules.append(parseReset(node));
            } else if (name.equals(LDMLConstants.IMPORT)) {
                rules.append(parseImport(node));
            } else {
                log.error("Encountered unknown <" + root.getNodeName() + "> subelement: " + name);
                System.exit(-1);
            }
        }

        return rules;
    }

    private static final UnicodeSet needsQuoting = new UnicodeSet(
        "[[:whitespace:][[:c:]-[:co:]][:z:][[:ascii:]-[a-zA-Z0-9]]\u2260]");
    private static StringBuilder quoteOperandBuffer = new StringBuilder(); // faster

    private static final String quoteOperand(String s) {
        // s = Normalizer.normalize(s, Normalizer.NFC);
        quoteOperandBuffer.setLength(0);
        boolean noQuotes = true;
        boolean inQuote = false;
        int cp;
        for (int i = 0; i < s.length(); i += UTF16.getCharCount(cp)) {
            cp = UTF16.charAt(s, i);
            if (!needsQuoting.contains(cp)) {
                if (inQuote) {
                    quoteOperandBuffer.append('\'');
                    inQuote = false;
                }
                quoteOperandBuffer.append(UTF16.valueOf(cp));
            } else {
                noQuotes = false;
                if (cp == '\'') {
                    quoteOperandBuffer.append("''");
                } else {
                    if (!inQuote) {
                        quoteOperandBuffer.append('\'');
                        inQuote = true;
                    }
                    if (cp > 0xFFFF) {
                        quoteOperandBuffer.append("\\U").append(Utility.hex(cp, 8));
                    } else if (cp <= 0x20 || cp > 0x7E) {
                        quoteOperandBuffer.append("\\u").append(Utility.hex(cp));
                    } else {
                        quoteOperandBuffer.append(UTF16.valueOf(cp));
                    }
                }
            }
        }
        if (inQuote) {
            quoteOperandBuffer.append('\'');
        }

        if (noQuotes) {
            return s; // faster
        }

        return quoteOperandBuffer.toString();
    }

    private String getData(Node root, String strength) {
        StringBuilder data = new StringBuilder();
        for (Node node = root.getFirstChild(); node != null; node = node.getNextSibling()) {
            if (node.getNodeType() == Node.ELEMENT_NODE) {
                String name = node.getNodeName();
                if (name.equals(LDMLConstants.CP)) {
                    String hex = LDMLUtilities.getAttributeValue(node, LDMLConstants.HEX);
                    addSpaceForDebug(data);
                    data.append(getStrengthSymbol(strength));
                    addSpaceForDebug(data);
                    String cp = UTF16.valueOf(Integer.parseInt(hex, 16));
                    data.append(quoteOperand(cp));
                }
            }

            if (node.getNodeType() == Node.TEXT_NODE) {
                String val = node.getNodeValue();
                if (val != null) {
                    if (strength.equals(LDMLConstants.PC) || strength.equals(LDMLConstants.SC) ||
                        strength.equals(LDMLConstants.TC) || strength.equals(LDMLConstants.QC) ||
                        strength.equals(LDMLConstants.IC)) {
                        data.append(getExpandedRules(val, strength));
                    } else {
                        addSpaceForDebug(data);
                        data.append(getStrengthSymbol(strength));
                        addSpaceForDebug(data);
                        data.append(quoteOperand(val));
                        lastStrengthSymbol = "";
                    }
                }
            }
        }

        return data.toString();
    }

    private String getStrengthSymbol(String name) {
        String strengthSymbol = "";
        if (name.equals(LDMLConstants.PC) || name.equals(LDMLConstants.P)) {
            strengthSymbol = "<";
        } else if (name.equals(LDMLConstants.SC) || name.equals(LDMLConstants.S)) {
            strengthSymbol = "<<";
        } else if (name.equals(LDMLConstants.TC) || name.equals(LDMLConstants.T)) {
            strengthSymbol = "<<<";
        } else if (name.equals(LDMLConstants.QC) || name.equals(LDMLConstants.Q)) {
            strengthSymbol = "<<<<";
        } else if (name.equals(LDMLConstants.IC) || name.equals(LDMLConstants.I)) {
            strengthSymbol = "=";
        } else {
            log.error("Encountered strength: " + name);
            System.exit(-1);
        }

        if (name.equals(LDMLConstants.PC) || name.equals(LDMLConstants.SC) ||
            name.equals(LDMLConstants.TC) || name.equals(LDMLConstants.QC) ||
            name.equals(LDMLConstants.IC)) {
            strengthSymbol += "*";
        }
        return strengthSymbol;
    }

    private String getStrength(String name) {
        if (name.equals(LDMLConstants.PRIMARY)) {
            return "1";
        } else if (name.equals(LDMLConstants.SECONDARY)) {
            return "2";
        } else if (name.equals(LDMLConstants.TERTIARY)) {
            return "3";
        } else if (name.equals(LDMLConstants.QUARTERNARY)) {
            return "4";
        } else if (name.equals(LDMLConstants.IDENTICAL)) {
            return "5";
        } else {
            log.error("Encountered strength: " + name);
            System.exit(-1);
        }
        return null;
    }

    private StringBuilder parseReset(Node root) {
        /*
         * variableTop at & x= [last variable] <reset>x</reset><i><last_variable/></i> after & x < [last variable]
         * <reset>x</reset><p><last_variable/></p> before & [before 1] x< [last variable] <reset
         * before="primary">x</reset> <p><last_variable/></p>
         */
        /*
         * & [first tertiary ignorable] << \u00e1 <reset><first_tertiary_ignorable/></reset><s>?</s>
         */
        StringBuilder ret = new StringBuilder();

        addSpaceForDebug(ret);
        ret.append("&");
        addSpaceForDebug(ret);

        String val = LDMLUtilities.getAttributeValue(root, LDMLConstants.BEFORE);
        if (val != null) {
            addSpaceForDebug(ret);
            ret.append("[before ");
            ret.append(getStrength(val));
            ret.append("]");
        }

        for (Node node = root.getFirstChild(); node != null; node = node.getNextSibling()) {
            short type = node.getNodeType();
            if (type == Node.ELEMENT_NODE) {
                String key = node.getNodeName();
                addSpaceForDebug(ret);
                ret.append(collationMap.get(key));
            }
            if (type == Node.TEXT_NODE) {
                ret.append(quoteOperand(node.getNodeValue()));
            }
        }
        lastStrengthSymbol = "";

        return ret;
    }

    private StringBuilder parseImport(Node node) {
        StringBuilder ret = new StringBuilder();

        org.w3c.dom.NamedNodeMap attributes = node.getAttributes();
        if (attributes == null || attributes.getLength() == 0) {
            throw new InternalError("<import> doesn't have any attributes.");
        }

        Node source = attributes.getNamedItem("source");
        Node type = attributes.getNamedItem("type");

        if (source == null) {
            throw new InternalError("<import> doesn't have a source attribute.");
        }

        ret.append("[import ");
        ret.append(source.getNodeValue().replace("_", "-"));
        if (type != null) {
            ret.append("-u-co-");
            ret.append(type.getNodeValue());
        }
        ret.append("]");

        return ret;
    }

    /**
         * Expand rules to include compact collation syntax to produce an equivalent
         * but possibly more compact rule string.
         *
         * This function is called when one of the <pc></pc>, <sc></sc>, <tc></tc>,
         * <qc></qc>, <ic></ic> rules are evaluated.  These rules contain a list of
         * characters to which the given strength operator need to be applied
         * consecutively. Rather than applying a series of consecutive operators
         * (For example '<' for <pc></pc>), this function introduces two new syntax
         * characters:
         *
         *  <li> A '*' after an operator signifies a list: For example, "&a<*hrbk"
         *  means "&a<h<r<b<k".
         *
         *  <li> A '-' indicates a range of consecutive (codepointwise) characters.
         *  For example, "&a<*dh-ls" means "&a<*dhijkls" or "&a<d<h<i<j<k<l<s".
         *
         * This is done in such a way that the resulting string is not longer than
         * the original string.
         */
    private StringBuilder getExpandedRules(String data, String name) {
        UCharacterIterator iter = UCharacterIterator.getInstance(data);
        StringBuilder ret = new StringBuilder();

        // The strength symbol with an extra '*' added at the end.
        String strengthSymbol = getStrengthSymbol(name);

        // The strength symbol without the extra '*'.
        String nonExpandedStrengthSymbol = strengthSymbol.substring(0, strengthSymbol.length() - 1);

        // The set on which the expansion works. It consists of all nfd_inert
        // characters minus the syntax characters.
        UnicodeSet inertSet = new UnicodeSet("[:nfd_inert:]");
        inertSet.remove("-<=");

        // This flag keeps track of whether we are at the beginning of an
        // expanded rule. The expansion breaks when non-nfd_inert character or
        // a syntax character is encountered.
        boolean restartExpandedRules = true;
        startOfRange = lastOfRange = 0;

        int ch;
        while ((ch = iter.nextCodePoint()) != UCharacterIterator.DONE) {
            if (inertSet.contains(ch)) { // The character is nfd_inert.
                if (restartExpandedRules) {
                    addSpaceForDebug(ret);

                    // This is the start of an expanded rule. Add the strength
                    // symbol, with a star, and then the first character.

                    if (!strengthSymbol.equals(lastStrengthSymbol)) {
                        ret.append(strengthSymbol);
                        lastStrengthSymbol = strengthSymbol;
                    }

                    addSpaceForDebug(ret);
                    ret.append(quoteOperand(UTF16.valueOf(ch)));
                    startOfRange = lastOfRange = ch;
                    restartExpandedRules = false;
                } else {
                    // This character, in the middle of a rule, may or may not
                    // be added, depending on whether it belongs to a range or
                    // not. So, leave it to the checking function.
                    checkAndProcessRange(ret, ch);
                }
            } else { // The character is not nfd_inert.
                addSpaceForDebug(ret);

                // Process any pending range.
                writePendingRange(ret);
                // This character is not NFD inert.
                // Treat it without compact collation syntax.
                ret.append(nonExpandedStrengthSymbol);
                ret.append(quoteOperand(UTF16.valueOf(ch)));
                lastStrengthSymbol = nonExpandedStrengthSymbol;

                // Restart expanded rules so that if there are more characters,
                // they will use compact collation syntax.
                restartExpandedRules = true;
                startOfRange = lastOfRange = ch;
            }
            addSpaceForDebug(ret);
        }

        // Process any pending range
        writePendingRange(ret);

        return ret;
    }

    /**
     * Checks whether a character belongs to a range and output accordingly.
     */
    private void checkAndProcessRange(StringBuilder ret, int ch) {
        if (ch == startOfRange) {
            // This happens when a character is repeated more than once. In
            // this case, we need to output (repeat) the character.
            ret.append(quoteOperand(UTF16.valueOf(ch)));
        } else if (ch == lastOfRange + 1) {
            // Wait till the range is finished
            lastOfRange = ch;
        } else {
            // Print the pending range starting from startOfRange (exclusive)
            // till lastOfRange (inclusive)
            writePendingRange(ret);

            // Then write the current character. This will take care of the
            // repeating character as well.
            ret.append(quoteOperand(UTF16.valueOf(ch)));

            startOfRange = lastOfRange = ch;
        }
    }

    /**
     * Writes a range from startOfRange (exclusive) to lastOfRange (inclusive).
     */
    private void writePendingRange(StringBuilder ret) {
        if (lastOfRange < startOfRange) {
            // This should not happen. Should be an error.
            // Just returning for the time being.
            return;
        }

        if (lastOfRange == startOfRange) {
            // These variables are initialized and have not changed.
            // Since we don't process the first character in this function, skip.
            return;
        }

        // The first character is already input, so skip it.
        // ret.DO_NOT_append(quoteOperand(UTF16.valueOf(startOfRange)));

        // Add hyphen if three or more characters are there.
        if (lastOfRange > startOfRange + 1) {
            ret.append("-");
        }

        // Add last character.
        ret.append(quoteOperand(UTF16.valueOf(lastOfRange)));
    }

    private StringBuilder parseExtension(Node root) {
        /*
         * strength context string extension <strength> <context> | <string> / <extension> < a | [last variable]
         * <x><context>a</context><p><last_variable/></p></x> < [last variable] / a
         * <x><p><last_variable/></p><extend>a</extend></x> << k / h <x><s>k</s> <extend>h</extend></x> << d | a
         * <x><context>d</context><s>a</s></x> = e | a <x><context>e</context><i>a</i></x> = f | a
         * <x><context>f</context><i>a</i></x>
         */
        StringBuilder rules = new StringBuilder();
        Node contextNode = null;
        Node extendNode = null;
        Node strengthNode = null;
        String strength = null;
        String string = null;
        String context = null;
        String extend = null;

        for (Node node = root.getFirstChild(); node != null; node = node.getNextSibling()) {
            if (node.getNodeType() != Node.ELEMENT_NODE) {
                continue;
            }

            String name = node.getNodeName();
            if (name.equals(LDMLConstants.CONTEXT)) {
                contextNode = node;
            } else if (name.equals(LDMLConstants.P) || name.equals(LDMLConstants.S) || name.equals(LDMLConstants.T)
                || name.equals(LDMLConstants.I)) {
                strengthNode = node;
            } else if (name.equals(LDMLConstants.EXTEND)) {
                extendNode = node;
            } else {
                log.error("Encountered unknown <" + root.getNodeName() + "> subelement: " + name);
                System.exit(-1);
            }
        }

        if (contextNode != null) {
            context = LDMLUtilities.getNodeValue(contextNode);
        }

        if (strengthNode != null) {
            Node lastVariable = LDMLUtilities.getNode(strengthNode, LDMLConstants.LAST_VARIABLE, null, null);
            if (lastVariable != null) {
                string = collationMap.get(lastVariable.getNodeName());
            } else {
                strength = getStrengthSymbol(strengthNode.getNodeName());
                string = LDMLUtilities.getNodeValue(strengthNode);
            }
        }

        if (extendNode != null) {
            extend = LDMLUtilities.getNodeValue(extendNode);
        }

        addSpaceForDebug(rules);
        rules.append(strength);
        addSpaceForDebug(rules);

        if (context != null) {
            rules.append(quoteOperand(context));
            addSpaceForDebug(rules);
            rules.append("|");
            addSpaceForDebug(rules);
        }
        rules.append(string);

        if (extend != null) {
            addSpaceForDebug(rules);
            rules.append("/");
            addSpaceForDebug(rules);
            rules.append(quoteOperand(extend));
        }

        return rules;
    }

    private Resource parseBoundaries(Node root, StringBuilder xpath) {
        ResourceTable table = new ResourceTable();
        int savedLength = xpath.length();
        getXPath(root, xpath);
        Resource current = null;
        String name = root.getNodeName();
        table.name = name.substring(name.indexOf(':') + 1, name.length());

        // we don't care if special elements are marked draft or not!

        for (Node node = root.getFirstChild(); node != null; node = node.getNextSibling()) {
            if (node.getNodeType() != Node.ELEMENT_NODE) {
                continue;
            }

            name = node.getNodeName();
            Resource res = null;
            if (name.equals(ICU_GRAPHEME) || name.equals(ICU_WORD) || name.equals(ICU_LINE)
                || name.equals(ICU_SENTENCE) || name.equals(ICU_TITLE) || name.equals(ICU_XGC)) {
                ResourceProcess str = new ResourceProcess();
                str.ext = ICUResourceWriter.DEPENDENCY;
                str.name = name.substring(name.indexOf(':') + 1, name.length());
                str.val = LDMLUtilities.getAttributeValue(node, ICU_DEPENDENCY);
                if (str.val != null) {
                    res = str;
                }
            } else {
                log.error("Encountered unknown <" + root.getNodeName() + "> subelement: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    table.first = res;
                    current = res.end();
                } else {
                    current.next = res;
                    current = res.end();
                }
                res = null;
            }

            xpath.delete(savedLength, xpath.length());
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    private Resource parseDictionaries(Node root, StringBuilder xpath) {
        ResourceTable table = new ResourceTable();
        int savedLength = xpath.length();
        getXPath(root, xpath);
        Resource current = null;
        String name = root.getNodeName();
        table.name = name.substring(name.indexOf(':') + 1, name.length());
        // we don't care if special elements are marked draft or not

        for (Node node = root.getFirstChild(); node != null; node = node.getNextSibling()) {
            if (node.getNodeType() != Node.ELEMENT_NODE) {
                continue;
            }

            name = node.getNodeName();
            Resource res = null;
            if (name.equals(ICU_DICTIONARY)) {
                ResourceProcess str = new ResourceProcess();
                str.ext = ICUResourceWriter.DEPENDENCY;
                str.name = LDMLUtilities.getAttributeValue(node, LDMLConstants.TYPE);
                str.val = LDMLUtilities.getAttributeValue(node, ICU_DEPENDENCY);
                if (str.val != null) {
                    res = str;
                }
            } else {
                log.error("Encountered unknown <" + root.getNodeName() + "> subelement: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    table.first = res;
                    current = res.end();
                } else {
                    current.next = res;
                    current = res.end();
                }
                res = null;
            }

            xpath.delete(savedLength, xpath.length());
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    private Resource parseSpecialElements(LDML2ICUInputLocale loc, String xpath) {
        Resource current = null;
        Resource first = null;

        for (Iterator<String> iter = loc.getFile().iterator(xpath); iter.hasNext();) {
            xpath = iter.next();
            String name = XPPUtil.getXpathName(xpath);

            log.info("parseSpecial: " + name);
            // we don't care if special elements are marked draft or not

            Resource res = null;
            if (name.equals(ICU_SCRIPT)) {
                if (!loc.beenHere(ICU_SCRIPT)) {
                    res = parseArray(loc, "//ldml/characters/special/icu:scripts");
                    res.name = LOCALE_SCRIPT;
                }
            } else if (name.equals(ICU_UCARULES)) {
                ResourceProcess process = new ResourceProcess();
                process.name = "UCARules";
                process.ext = "uca_rules";
                process.val = loc.findAttributeValue(xpath, ICU_UCA_RULES);
                res = process;
            } else if (name.equals(ICU_DEPENDS)) {
                ResourceProcess process = new ResourceProcess();
                process.name = "depends";
                process.ext = "dependency";
                process.val = loc.findAttributeValue(xpath, ICU_DEPENDENCY);
                res = process;
            } else if (xpath.startsWith("//ldml/special/" + ICU_BRKITR_DATA)) {
                res = parseBrkItrData(loc, "//ldml/special/" + ICU_BRKITR_DATA);
            } else if (name.equals(LDMLConstants.SPECIAL)) {
                // just continue, already handled
            } else {
                log.error("Encountered unknown <" + xpath + "> special subelement: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    first = res;
                    current = res.end();
                } else {
                    current.next = res;
                    current = res.end();
                }
                res = null;
            }
        }

        return first;
    }

    public static class DocumentPair {
        public final Document doc;
        public final Document fullyResolvedDoc;

        DocumentPair(Document doc, Document fullyResolvedDoc) {
            this.doc = doc;
            this.fullyResolvedDoc = fullyResolvedDoc;
        }
    }

    /**
     * Use the input locale as a cache for the document pair.
     */
    private DocumentPair getDocumentPair(LDML2ICUInputLocale loc) {
        if (loc.isNotOnDisk()) {
            throw new InternalError("Error: locale (" + loc.getLocale() + ") isn't on disk, can't parse with DOM.");
        }

        DocumentPair result = loc.getDocumentPair();
        if (result == null) {
            result = getDocumentPair(loc.getLocale());
            loc.setDocumentPair(result);
        }
        return result;
    }

    /**
     * Get the node of the 'top' item named. Similar to DOM-based parseBundle()
     */
    public Node getTopNode(Document doc, String topName) {
        StringBuilder xpath = new StringBuilder();
        xpath.append("//ldml");

        org.w3c.dom.Element ldmlElement = doc.getDocumentElement();
        NodeList identityList = ldmlElement.getElementsByTagName(LDMLConstants.IDENTITY);
        Element identity = (Element) identityList.item(0);
        NodeList versionList = identity.getElementsByTagName(LDMLConstants.VERSION);
        Node version = versionList.item(0);
        setLdmlVersion(LDMLUtilities.getAttributeValue(version, LDMLConstants.CLDR_VERSION));

        Node ldml = doc.getDocumentElement();
        for (Node node = ldml.getFirstChild(); node != null; node = node.getNextSibling()) {
            if (node.getNodeType() != Node.ELEMENT_NODE) {
                continue;
            }
            String name = node.getNodeName();
            if (topName.equals(name)) {
                return node;
            }
        }
        return null;
    }

    private Resource parseBrkItrData(LDML2ICUInputLocale loc, String xpath) {
        // "//ldml/special/"
        if (loc.beenHere(ICU_BRKITR_DATA)) {
            return null;
        }

        DocumentPair docPair = getDocumentPair(loc);
        Node root = getTopNode(docPair.doc, LDMLConstants.SPECIAL);
        StringBuilder xpathBuffer = new StringBuilder();
        getXPath(root, xpathBuffer);
        for (Node node = root.getFirstChild(); node != null; node = node.getNextSibling()) {
            if (node.getNodeType() != Node.ELEMENT_NODE) {
                continue;
            }

            String name = node.getNodeName();
            if (name.equals(ICU_BRKITR_DATA)) {
                return parseBrkItrData(node, xpathBuffer);
            }
        }

        throw new InternalError("Could not find node for " + ICU_BRKITR_DATA);
    }

    private Resource parseBrkItrData(Node root, StringBuilder xpath) {
        Resource current = null, first = null;
        int savedLength = xpath.length();
        getXPath(root, xpath);

        // we don't care if special elements are marked draft or not!

        for (Node node = root.getFirstChild(); node != null; node = node.getNextSibling()) {
            if (node.getNodeType() != Node.ELEMENT_NODE) {
                continue;
            }

            String name = node.getNodeName();
            Resource res = null;
            if (name.equals(ICU_BOUNDARIES)) {
                res = parseBoundaries(node, xpath);
            } else if (name.equals(ICU_DICTIONARIES)) {
                res = parseDictionaries(node, xpath);
            } else {
                log.error("Encountered @ " + xpath + "  unknown <" + root.getNodeName() + "> subelement: " + name);
                System.exit(-1);
            }

            if (res != null) {
                if (current == null) {
                    first = res;
                    current = res.end();
                } else {
                    current.next = res;
                    current = res.end();
                }
                res = null;
            }

            xpath.delete(savedLength, xpath.length());
        }

        return first;
    }

    private Resource parseDefaultNumberingSystem(LDML2ICUInputLocale loc, String xpath) {
        ResourceString str = new ResourceString();
        str.name = LDMLConstants.DEFAULT;
        str.val = loc.getFile().getStringValue(xpath + "/" + LDMLConstants.DEFAULT_NUMBERING_SYSTEM);
        if (str.val != null) {
            return str;
        }

        return null;
    }

    private Resource parseOtherNumberingSystem(LDML2ICUInputLocale loc, String xpath, String tag) {
        ResourceString str = new ResourceString();
        str.name = tag;
        str.val = loc.getFile().getStringValue(xpath + "/" + LDMLConstants.OTHER_NUMBERING_SYSTEMS + "/" + tag);
        if (str.val != null) {
            return str;
        }

        return null;
    }

    private Resource parseRBNF(LDML2ICUInputLocale loc, String xpath) {
        char LARROW = 0x2190;
        char RARROW = 0x2192;

        ResourceTable table = new ResourceTable();
        table.name = "RBNFRules";

        Resource res = null;
        ResourceArray ruleset = new ResourceArray();

        if (loc.isPathNotConvertible(xpath)) {
            return null;
        }

        String currentRulesetGrouping = "";
        String currentRulesetType = "";

        for (Iterator<String> iter = loc.getFile().iterator(xpath, loc.getFile().getComparator()); iter.hasNext();) {
            String aPath = iter.next();
            String fullPath = loc.getFile().getFullXPath(aPath);
            String name = XPPUtil.getXpathName(aPath);
            if (name.equals(LDMLConstants.RBNFRULE)) {
                XPathParts xpp = new XPathParts();
                xpp.set(fullPath);

                String rulesetGrouping = xpp.findAttributeValue(LDMLConstants.RULESETGROUPING, LDMLConstants.TYPE);
                String rulesetType = xpp.findAttributeValue(LDMLConstants.RULESET, LDMLConstants.TYPE);
                String rulesetAccess = xpp.findAttributeValue(LDMLConstants.RULESET, LDMLConstants.ACCESS);
                String rulesetAllowsParsing = xpp.findAttributeValue(LDMLConstants.RULESET,
                    LDMLConstants.ALLOWS_PARSING);
                String ruleValue = xpp.findAttributeValue(LDMLConstants.RBNFRULE, LDMLConstants.VALUE);
                String ruleRadix = xpp.findAttributeValue(LDMLConstants.RBNFRULE, LDMLConstants.RADIX);
                String ruleDecExp = xpp.findAttributeValue(LDMLConstants.RBNFRULE, LDMLConstants.DECEXP);

                if (rulesetGrouping != null && !rulesetGrouping.equals(currentRulesetGrouping)) {
                    if (!currentRulesetGrouping.equals("")) {
                        res = ruleset;
                        table.appendContents(res);
                        res = null;
                    }

                    ruleset = new ResourceArray();
                    ruleset.name = rulesetGrouping;
                    currentRulesetGrouping = rulesetGrouping;
                    currentRulesetType = "";
                }

                if (!rulesetType.equals(currentRulesetType)) {
                    ResourceString rsname = new ResourceString();
                    String rsNamePrefix = "%";
                    if (rulesetAccess != null && rulesetAccess.equals("private")) {
                        rsNamePrefix = "%%";
                    }
                    String rsNameSuffix = "";
                    if (rulesetAllowsParsing != null && rulesetAllowsParsing.equals("false")) {
                        rsNameSuffix = "@noparse";
                    }
                    rsname.val = rsNamePrefix + rulesetType + rsNameSuffix + ":";
                    ruleset.appendContents(rsname);
                    currentRulesetType = rulesetType;
                }

                String radixString = "";
                if (ruleRadix != null) {
                    radixString = "/" + ruleRadix;
                }

                String decExpString = "";

                if (ruleDecExp != null) {
                    int decExp = Integer.valueOf(ruleDecExp).intValue();
                    while (decExp > 0) {
                        decExpString = decExpString.concat(">");
                        decExp--;
                    }
                }

                ResourceString rs = new ResourceString();
                if (rulesetType.equals(LDMLConstants.LENIENT_PARSE)) {
                    rs.val = Utility.escape(loc.getFile().getStringValue(aPath).replace(LARROW, '<')
                        .replace(RARROW, '>'));
                    System.out.println("val " + rs.val);
                } else {
                    rs.val = ruleValue + radixString + decExpString + ": "
                        + Utility.escape(loc.getFile().getStringValue(aPath).replace(LARROW, '<').replace(RARROW, '>'));
                }
                ruleset.appendContents(rs);
            } else {
                log.error("Unknown element found: " + xpath + " / " + name);
                System.exit(-1);
            }
        }

        if (ruleset.first != null) {
            table.appendContents(ruleset);
        }

        if (table.first != null) {
            return table;
        }

        return null;
    }

    public boolean isDraftStatusOverridable(String locName) {
        if (getLocalesMap() != null && getLocalesMap().size() > 0) {
            String draft = getLocalesMap().get(locName + ".xml");
            if (draft != null && (draft.equals("true") || locName.matches(draft))) {
                return true;
            }
            return false;
        }

        // check to see if the destination file already exists
        // maybe override draft was specified in the run that produced
        // the txt files
        File f = new File(destDir, locName + ".txt");
        return f.exists();
    }

    // utility
    public static StringBuilder getXPath(Node node, StringBuilder xpath) {
        xpath.append("/");
        xpath.append(node.getNodeName());
        LDMLUtilities.appendXPathAttribute(node, xpath);
        return xpath;
    }
}
