106 lines
4.3 KiB
Java
106 lines
4.3 KiB
Java
/*
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* Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package build.tools.cldrconverter;
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import java.io.File;
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import java.io.IOException;
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import org.xml.sax.Attributes;
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import org.xml.sax.InputSource;
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import org.xml.sax.SAXException;
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/**
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* Handles parsing of files in Locale Data Markup Language for numberingSystems.xml
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* and produces a map that uses the keys and values of JRE locale data.
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*/
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class NumberingSystemsParseHandler extends AbstractLDMLHandler<String> {
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NumberingSystemsParseHandler() {
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}
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@Override
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public InputSource resolveEntity(String publicID, String systemID) throws IOException, SAXException {
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// avoid HTTP traffic to unicode.org
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if (systemID.startsWith(CLDRConverter.SPPL_LDML_DTD_SYSTEM_ID)) {
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return new InputSource((new File(CLDRConverter.LOCAL_SPPL_LDML_DTD)).toURI().toString());
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}
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return null;
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}
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@Override
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public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
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switch (qName) {
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case "numberingSystem":
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numberingSystem: {
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if ("numeric".equals(attributes.getValue("type"))) {
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// eg, <numberingSystem id="latn" type="numeric" digits="0123456789"/>
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String script = attributes.getValue("id");
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String digits = attributes.getValue("digits");
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if (Character.isSurrogate(digits.charAt(0))) {
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// DecimalFormatSymbols doesn't support supplementary characters as digit zero.
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// Replace supplementary digits with latin digits. This is a restriction till JDK-8204092 is resolved.
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digits = "0123456789";
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put(script, digits);
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break numberingSystem;
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}
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// in case digits are in the reversed order, reverse back the order.
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if (digits.charAt(0) > digits.charAt(digits.length() - 1)) {
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StringBuilder sb = new StringBuilder(digits);
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digits = sb.reverse().toString();
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}
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// Check if the order is sequential.
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char c0 = digits.charAt(0);
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for (int i = 1; i < digits.length(); i++) {
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if (digits.charAt(i) != c0 + i) {
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break numberingSystem;
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}
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}
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// script/digits are acceptable.
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put(script, digits);
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}
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}
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pushIgnoredContainer(qName);
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break;
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case "version":
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case "generation":
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pushIgnoredContainer(qName);
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break;
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default:
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// treat anything else as a container
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pushContainer(qName, attributes);
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break;
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}
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}
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@Override
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public void endElement(String uri, String localName, String qName) throws SAXException {
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assert qName.equals(currentContainer.getqName()) : "current=" + currentContainer.getqName() + ", param=" + qName;
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currentContainer = currentContainer.getParent();
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}
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}
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