author | bpatel |
Wed, 15 Mar 2017 16:12:20 -0700 | |
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/* |
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* Copyright (c) 2010, 2017, 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 jdk.javadoc.internal.doclets.formats.html.markup; |
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import java.io.IOException; |
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import java.io.Writer; |
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import jdk.javadoc.internal.doclets.toolkit.Content; |
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import jdk.javadoc.internal.doclets.toolkit.util.DocletConstants; |
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/** |
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* Class for generating raw HTML content to be added to HTML pages of javadoc output. |
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* |
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* <p><b>This is NOT part of any supported API. |
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* If you write code that depends on this, you do so at your own risk. |
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* This code and its internal interfaces are subject to change or |
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* deletion without notice.</b> |
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* |
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* @author Bhavesh Patel |
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*/ |
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public class RawHtml extends Content { |
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private final String rawHtmlContent; |
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public static final Content nbsp = new RawHtml(" "); |
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public static final Content zws = new RawHtml("​"); |
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/** |
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* Constructor to construct a RawHtml object. |
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* |
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* @param rawHtml raw HTML text to be added |
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*/ |
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public RawHtml(CharSequence rawHtml) { |
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rawHtmlContent = rawHtml.toString(); |
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} |
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/** |
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* This method is not supported by the class. |
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* |
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* @param content content that needs to be added |
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* @throws UnsupportedOperationException always |
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*/ |
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public void addContent(Content content) { |
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throw new UnsupportedOperationException(); |
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} |
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/** |
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* This method is not supported by the class. |
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* |
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* @param stringContent string content that needs to be added |
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* @throws UnsupportedOperationException always |
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*/ |
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@Override |
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public void addContent(CharSequence stringContent) { |
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throw new UnsupportedOperationException(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public boolean isEmpty() { |
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return rawHtmlContent.isEmpty(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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@Override |
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public String toString() { |
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return rawHtmlContent; |
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} |
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private enum State { TEXT, ENTITY, TAG, STRING } |
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@Override |
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public int charCount() { |
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return charCount(rawHtmlContent); |
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} |
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static int charCount(CharSequence htmlText) { |
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State state = State.TEXT; |
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int count = 0; |
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for (int i = 0; i < htmlText.length(); i++) { |
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char c = htmlText.charAt(i); |
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switch (state) { |
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case TEXT: |
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switch (c) { |
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case '<': |
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state = State.TAG; |
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break; |
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case '&': |
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state = State.ENTITY; |
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count++; |
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break; |
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default: |
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count++; |
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} |
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break; |
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case ENTITY: |
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if (!Character.isLetterOrDigit(c)) |
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state = State.TEXT; |
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break; |
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case TAG: |
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switch (c) { |
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case '"': |
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state = State.STRING; |
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break; |
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case '>': |
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state = State.TEXT; |
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break; |
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} |
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break; |
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case STRING: |
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switch (c) { |
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case '"': |
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state = State.TAG; |
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break; |
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} |
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} |
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} |
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return count; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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@Override |
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public boolean write(Writer out, boolean atNewline) throws IOException { |
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out.write(rawHtmlContent); |
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return rawHtmlContent.endsWith(DocletConstants.NL); |
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} |
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} |