/*
* Copyright 2013-2016 Skynav, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY SKYNAV, INC. AND ITS CONTRIBUTORS “AS IS” AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL SKYNAV, INC. OR ITS CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.skynav.xml.helpers;
import javax.xml.namespace.QName;
public class XML {
public static final String xmlNamespace = "http://www.w3.org/XML/1998/namespace";
public static final String xmlnsNamespace = "http://www.w3.org/2000/xmlns/";
public static final String xsiNamespace = "http://www.w3.org/2001/XMLSchema-instance";
public static final String xmlPrefix = "xml";
public static final String xmlnsPrefix = "xmlns";
public static final String xsiPrefix = "xsi";
public static final QName xmlIdentifierAttributeName = new QName(xmlNamespace, "id");
private XML() {
}
public static String getNamespaceUri() {
return xmlNamespace;
}
public static boolean isXMLNamespace(String nsUri) {
return (nsUri != null) && nsUri.equals(getNamespaceUri());
}
private static final QName xmlBaseName = new QName(getNamespaceUri(), "base");
public static QName getBaseAttributeName() {
return xmlBaseName;
}
private static final QName xmlIdName = new QName(getNamespaceUri(), "id");
public static QName getIdAttributeName() {
return xmlIdName;
}
public static String getXSINamespaceUri() {
return xsiNamespace;
}
public static boolean isXSINamespace(String nsUri) {
return (nsUri != null) && nsUri.equals(getXSINamespaceUri());
}
public static boolean isXMLNSNamespace(String nsUri) {
return (nsUri != null) && nsUri.equals(xmlnsNamespace);
}
public static boolean isAnyXMLNamespace(String nsUri) {
if (isXMLNamespace(nsUri))
return true;
else if (isXMLNSNamespace(nsUri))
return true;
else
return false;
}
private static final QName xsiSchemaLocationName = new QName(getXSINamespaceUri(), "schemaLocation");
public static QName getSchemaLocationAttributeName() {
return xsiSchemaLocationName;
}
public static String escapeMarkup(String s) {
return escapeMarkup(s, false, false);
}
public static String escapeMarkup(String s, boolean escapeSpaceAsNBSP) {
return escapeMarkup(s, false, escapeSpaceAsNBSP);
}
public static String escapeMarkup(String s, boolean escapeWhitespace, boolean escapeSpaceAsNBSP) {
if (s == null)
return null;
else {
StringBuffer sb = new StringBuffer(s.length());
for (int i = 0, n = s.length(); i < n; ++i) {
int c = s.codePointAt(i);
if ((c > 65535)) {
appendNumericCharReference(sb, c);
++i;
} else if (Character.isISOControl(c) && (escapeWhitespace || !Character.isWhitespace(c))) {
appendNumericCharReference(sb, c);
} else if (c == ' ') {
if (escapeWhitespace)
appendNumericCharReference(sb, ' ');
else if (escapeSpaceAsNBSP)
appendNumericCharReference(sb, 0x00A0);
else
sb.append((char) c);
} else if (c == '<')
appendNamedCharReference(sb, "lt");
else if (c == '>')
appendNamedCharReference(sb, "gt");
else if (c == '&')
appendNamedCharReference(sb, "amp");
else if (c == '"')
appendNamedCharReference(sb, "quot");
else if (c == '\'')
appendNamedCharReference(sb, "apos");
else {
assert c < 65536;
sb.append((char) c);
}
}
return sb.toString();
}
}
private static void appendNumericCharReference(StringBuffer sb, int codepoint) {
sb.append("&#x");
String s = Integer.toString(codepoint, 16).toUpperCase();
for (int i = 0, n = (6 - s.length()) % 2; i < n; ++i)
sb.append('0');
sb.append(s);
sb.append(';');
}
private static void appendNamedCharReference(StringBuffer sb, String name) {
sb.append('&');
sb.append(name);
sb.append(';');
}
public static boolean isNCNameCharStart(char c) {
if (c == '_')
return true;
else
return isLetter(c);
}
public static boolean isNCNameCharPart(char c) {
if (c == '_')
return true;
else if (c == '-')
return true;
else if (c == '.')
return true;
else if (isLetter(c))
return true;
else if (isDigit(c))
return true;
else if (isCombiningChar(c))
return true;
else if (isExtender(c))
return true;
else
return false;
}
public static boolean isLetter(char c) {
if (isBaseChar(c))
return true;
else if (isIdeographic(c))
return true;
else
return false;
}
public static boolean isBaseChar(char c) {
if ((c >= 0x0041) && (c <= 0x005A))
return true;
else if ((c >= 0x0061) && (c <= 0x007A))
return true;
else // [TBD] include all base chars per XML 1.0
return false;
}
public static boolean isIdeographic(char c) {
if (c == 0x3007)
return true;
else if ((c >= 0x3021) && (c <= 0x3029))
return true;
else if ((c >= 0x4E00) && (c <= 0x9FA5))
return true;
else
return false;
}
public static boolean isDigit(char c) {
if ((c >= 0x0030) && (c <= 0x0039))
return true;
else // [TBD] include all digit chars per XML 1.0
return false;
}
public static boolean isCombiningChar(char c) {
if ((c >= 0x0300) && (c <= 0x0345))
return true;
else if ((c >= 0x0360) && (c <= 0x0361))
return true;
else // [TBD] include all combining chars per XML 1.0
return false;
}
public static boolean isExtender(char c) {
if (c == 0x00B7)
return true;
else if (c == 0x02D0)
return true;
else if (c == 0x02D1)
return true;
else if (c == 0x0387)
return true;
else if (c == 0x0640)
return true;
else if (c == 0x0E46)
return true;
else if (c == 0x0EC6)
return true;
else if (c == 0x3005)
return true;
else if ((c >= 0x3031) && (c <= 0x3035))
return true;
else if ((c >= 0x309D) && (c <= 0x309E))
return true;
else if ((c >= 0x30FC) && (c <= 0x30FE))
return true;
else
return false;
}
}