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Diffstat (limited to 'plugins/org.eclipse.wst.common.emf/wtpemf/org/eclipse/wst/common/internal/emf/resource/XMLEncoderDecoder.java')
| -rw-r--r-- | plugins/org.eclipse.wst.common.emf/wtpemf/org/eclipse/wst/common/internal/emf/resource/XMLEncoderDecoder.java | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/plugins/org.eclipse.wst.common.emf/wtpemf/org/eclipse/wst/common/internal/emf/resource/XMLEncoderDecoder.java b/plugins/org.eclipse.wst.common.emf/wtpemf/org/eclipse/wst/common/internal/emf/resource/XMLEncoderDecoder.java deleted file mode 100644 index 9f469622d..000000000 --- a/plugins/org.eclipse.wst.common.emf/wtpemf/org/eclipse/wst/common/internal/emf/resource/XMLEncoderDecoder.java +++ /dev/null @@ -1,170 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2003, 2004 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -/* - * Created on May 20, 2004 - * - * TODO To change the template for this generated file go to - * Window - Preferences - Java - Code Generation - Code and Comments - */ -package org.eclipse.wst.common.internal.emf.resource; - -/** - * @author mdelder - * - */ -public class XMLEncoderDecoder { - - /** - * - */ - public XMLEncoderDecoder() { - super(); - } - - /** - * Identifies the last printable character in the Unicode range that is supported by the - * encoding used with this serializer. For 8-bit encodings this will be either 0x7E or 0xFF. For - * 16-bit encodings this will be 0xFFFF. Characters that are not printable will be escaped using - * character references. - */ - private int _lastPrintable = 0x7E; - - protected static XMLEncoderDecoder _singleton; - - - /** - * Returns a decoded version of the value. - */ - public String decode(String value) { - // NOT_IMPLEMENTED - return value; - } - - - /** - * Escapes a string so it may be printed as text content or attribute value. Non printable - * characters are escaped using character references. Where the format specifies a deault entity - * reference, that reference is used (e.g. <tt>&lt;</tt>). - * - * @param source - * The string to escape - */ - public char[] encode(char[] value) { - boolean unmodified = true; - StringBuffer sbuf = new StringBuffer(value.length); - String charRef = null; - char ch; - for (int i = 0; i < value.length; ++i) { - ch = value[i]; - // If there is a suitable entity reference for this - // character, print it. The list of available entity - // references is almost but not identical between - // XML and HTML. - charRef = getEntityRef(ch); - if (charRef != null) { - sbuf.append('&'); - sbuf.append(charRef); - sbuf.append(';'); - unmodified = false; - } else if ((ch >= ' ' && ch <= _lastPrintable && ch != 0xF7) || ch == '\n' || ch == '\r' || ch == '\t') { - // If the character is not printable, print as character - // reference. - // Non printables are below ASCII space but not tab or line - // terminator, ASCII delete, or above a certain Unicode - // threshold. - sbuf.append(ch); - } else { - sbuf.append("&#");//$NON-NLS-1$ - sbuf.append(Integer.toString(ch)); - sbuf.append(';'); - unmodified = false; - } - } - if (unmodified) - return value; - char[] result = new char[sbuf.length()]; - sbuf.getChars(0, sbuf.length(), result, 0); - return result; - } - - /** - * Escapes a string so it may be printed as text content or attribute value. Non printable - * characters are escaped using character references. Where the format specifies a deault entity - * reference, that reference is used (e.g. <tt>&lt;</tt>). - * - * @param source - * The string to escape - */ - public String encode(String value) { - StringBuffer sbuf = new StringBuffer(value.length()); - String charRef = null; - char ch; - for (int i = 0; i < value.length(); ++i) { - ch = value.charAt(i); - // If there is a suitable entity reference for this - // character, print it. The list of available entity - // references is almost but not identical between - // XML and HTML. - charRef = getEntityRef(ch); - if (charRef != null) { - sbuf.append('&'); - sbuf.append(charRef); - sbuf.append(';'); - } else if ((ch >= ' ' && ch <= _lastPrintable && ch != 0xF7) || ch == '\n' || ch == '\r' || ch == '\t') { - // If the character is not printable, print as character - // reference. - // Non printables are below ASCII space but not tab or line - // terminator, ASCII delete, or above a certain Unicode - // threshold. - sbuf.append(ch); - } else { - sbuf.append("&#");//$NON-NLS-1$ - sbuf.append(Integer.toString(ch)); - sbuf.append(';'); - } - } - return sbuf.toString(); - } - - public static String escape(String value) { - if (_singleton == null) { - _singleton = new XMLEncoderDecoder(); - } - return _singleton.encode(value); - } - - /** - * Returns the suitable entity reference for this character value, or null if no such entity - * exists. Calling this method with <tt>'&'</tt> will return <tt>"&amp;"</tt>. - * - * @param ch - * Character value - * @return Character entity name, or null - */ - protected String getEntityRef(char ch) { - // Encode special XML characters into the equivalent character - // references. - // These five are defined by default for all XML documents. - switch (ch) { - case '<' : - return "lt";//$NON-NLS-1$ - case '>' : - return "gt";//$NON-NLS-1$ - case '"' : - return "quot";//$NON-NLS-1$ - case '\'' : - return "apos";//$NON-NLS-1$ - case '&' : - return "amp";//$NON-NLS-1$ - } - return null; - } -}
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