1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/jaxws_classes/com/sun/xml/internal/dtdparser/XmlNames.java Wed Apr 27 01:27:09 2016 +0800
1.3 @@ -0,0 +1,147 @@
1.4 +/*
1.5 + * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package com.sun.xml.internal.dtdparser;
1.30 +
1.31 +
1.32 +/**
1.33 + * This class contains static methods used to determine whether identifiers
1.34 + * may appear in certain roles in XML documents. Such methods are used
1.35 + * both to parse and to create such documents.
1.36 + *
1.37 + * @author David Brownell
1.38 + * @version 1.1, 00/08/05
1.39 + */
1.40 +public class XmlNames {
1.41 + private XmlNames() {
1.42 + }
1.43 +
1.44 +
1.45 + /**
1.46 + * Returns true if the value is a legal XML name.
1.47 + *
1.48 + * @param value the string being tested
1.49 + */
1.50 + public static boolean isName(String value) {
1.51 + if (value == null)
1.52 + return false;
1.53 +
1.54 + char c = value.charAt(0);
1.55 + if (!XmlChars.isLetter(c) && c != '_' && c != ':')
1.56 + return false;
1.57 + for (int i = 1; i < value.length(); i++)
1.58 + if (!XmlChars.isNameChar(value.charAt(i)))
1.59 + return false;
1.60 + return true;
1.61 + }
1.62 +
1.63 + /**
1.64 + * Returns true if the value is a legal "unqualified" XML name, as
1.65 + * defined in the XML Namespaces proposed recommendation.
1.66 + * These are normal XML names, except that they may not contain
1.67 + * a "colon" character.
1.68 + *
1.69 + * @param value the string being tested
1.70 + */
1.71 + public static boolean isUnqualifiedName(String value) {
1.72 + if (value == null || value.length() == 0)
1.73 + return false;
1.74 +
1.75 + char c = value.charAt(0);
1.76 + if (!XmlChars.isLetter(c) && c != '_')
1.77 + return false;
1.78 + for (int i = 1; i < value.length(); i++)
1.79 + if (!XmlChars.isNCNameChar(value.charAt(i)))
1.80 + return false;
1.81 + return true;
1.82 + }
1.83 +
1.84 + /**
1.85 + * Returns true if the value is a legal "qualified" XML name, as defined
1.86 + * in the XML Namespaces proposed recommendation. Qualified names are
1.87 + * composed of an optional prefix (an unqualified name), followed by a
1.88 + * colon, and a required "local part" (an unqualified name). Prefixes are
1.89 + * declared, and correspond to particular URIs which scope the "local
1.90 + * part" of the name. (This method cannot check whether the prefix of a
1.91 + * name has been declared.)
1.92 + *
1.93 + * @param value the string being tested
1.94 + */
1.95 + public static boolean isQualifiedName(String value) {
1.96 + if (value == null)
1.97 + return false;
1.98 +
1.99 + // [6] QName ::= (Prefix ':')? LocalPart
1.100 + // [7] Prefix ::= NCName
1.101 + // [8] LocalPart ::= NCName
1.102 +
1.103 + int first = value.indexOf(':');
1.104 +
1.105 + // no Prefix, only check LocalPart
1.106 + if (first <= 0)
1.107 + return isUnqualifiedName(value);
1.108 +
1.109 + // Prefix exists, check everything
1.110 +
1.111 + int last = value.lastIndexOf(':');
1.112 + if (last != first)
1.113 + return false;
1.114 +
1.115 + return isUnqualifiedName(value.substring(0, first))
1.116 + && isUnqualifiedName(value.substring(first + 1));
1.117 + }
1.118 +
1.119 + /**
1.120 + * This method returns true if the identifier is a "name token"
1.121 + * as defined in the XML specification. Like names, these
1.122 + * may only contain "name characters"; however, they do not need
1.123 + * to have letters as their initial characters. Attribute values
1.124 + * defined to be of type NMTOKEN(S) must satisfy this predicate.
1.125 + *
1.126 + * @param token the string being tested
1.127 + */
1.128 + public static boolean isNmtoken(String token) {
1.129 + int length = token.length();
1.130 +
1.131 + for (int i = 0; i < length; i++)
1.132 + if (!XmlChars.isNameChar(token.charAt(i)))
1.133 + return false;
1.134 + return true;
1.135 + }
1.136 +
1.137 +
1.138 + /**
1.139 + * This method returns true if the identifier is a "name token" as
1.140 + * defined by the XML Namespaces proposed recommendation.
1.141 + * These are like XML "name tokens" but they may not contain the
1.142 + * "colon" character.
1.143 + *
1.144 + * @param token the string being tested
1.145 + * @see #isNmtoken
1.146 + */
1.147 + public static boolean isNCNmtoken(String token) {
1.148 + return isNmtoken(token) && token.indexOf(':') < 0;
1.149 + }
1.150 +}
