1 /* 2 * Copyright (c) 2012, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package build.tools.cldrconverter; 27 28 import java.io.File; 29 import java.io.IOException; 30 import org.xml.sax.Attributes; 31 import org.xml.sax.InputSource; 32 import org.xml.sax.SAXException; 33 34 /** 35 * Handles parsing of files in Locale Data Markup Language for numberingSystems.xml 36 * and produces a map that uses the keys and values of JRE locale data. 37 */ 38 39 class NumberingSystemsParseHandler extends AbstractLDMLHandler<String> { 40 41 NumberingSystemsParseHandler() { 42 } 43 44 @Override 45 public InputSource resolveEntity(String publicID, String systemID) throws IOException, SAXException { 46 // avoid HTTP traffic to unicode.org 47 if (systemID.startsWith(CLDRConverter.SPPL_LDML_DTD_SYSTEM_ID)) { 48 return new InputSource((new File(CLDRConverter.LOCAL_SPPL_LDML_DTD)).toURI().toString()); 49 } 50 return null; 51 } 52 53 @Override 54 public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { 55 switch (qName) { 56 case "numberingSystem": 57 numberingSystem: { 58 if ("numeric".equals(attributes.getValue("type"))) { 59 // eg, <numberingSystem id="latn" type="numeric" digits="0123456789"/> 60 String script = attributes.getValue("id"); 61 String digits = attributes.getValue("digits"); 62 63 if (Character.isSurrogate(digits.charAt(0))) { 64 // DecimalFormatSymbols doesn't support supplementary characters as digit zero. 65 break numberingSystem; 66 } 67 // in case digits are in the reversed order, reverse back the order. 68 if (digits.charAt(0) > digits.charAt(digits.length() - 1)) { 69 StringBuilder sb = new StringBuilder(digits); 70 digits = sb.reverse().toString(); 71 } 72 // Check if the order is sequential. 73 char c0 = digits.charAt(0); 74 for (int i = 1; i < digits.length(); i++) { 75 if (digits.charAt(i) != c0 + i) { 76 break numberingSystem; 77 } 78 } 79 80 // script/digits are acceptable. 81 put(script, digits); 82 } 83 } 84 pushIgnoredContainer(qName); 85 break; 86 case "version": 87 case "generation": 88 pushIgnoredContainer(qName); 89 break; 90 default: 91 // treat anything else as a container 92 pushContainer(qName, attributes); 93 break; 94 } 95 } 96 97 @Override 98 public void endElement(String uri, String localName, String qName) throws SAXException { 99 assert qName.equals(currentContainer.getqName()) : "current=" + currentContainer.getqName() + ", param=" + qName; 100 currentContainer = currentContainer.getParent(); 101 } 102 }