Mon, 16 Oct 2017 16:07:48 +0800
merge
1 /*
2 * Copyright (c) 2010, 2013, 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 */
26 package com.sun.tools.doclets.formats.html.markup;
28 import java.io.IOException;
29 import java.io.Writer;
31 import com.sun.tools.doclets.internal.toolkit.Content;
32 import com.sun.tools.doclets.internal.toolkit.util.*;
34 /**
35 * Class for generating string content for HTML tags of javadoc output.
36 *
37 * <p><b>This is NOT part of any supported API.
38 * If you write code that depends on this, you do so at your own risk.
39 * This code and its internal interfaces are subject to change or
40 * deletion without notice.</b>
41 *
42 * @author Bhavesh Patel
43 */
44 public class StringContent extends Content {
46 private StringBuilder stringContent;
48 /**
49 * Constructor to construct StringContent object.
50 */
51 public StringContent() {
52 stringContent = new StringBuilder();
53 }
55 /**
56 * Constructor to construct StringContent object with some initial content.
57 *
58 * @param initialContent initial content for the object
59 */
60 public StringContent(String initialContent) {
61 stringContent = new StringBuilder();
62 appendChars(initialContent);
63 }
65 /**
66 * This method is not supported by the class.
67 *
68 * @param content content that needs to be added
69 * @throws DocletAbortException this method will always throw a
70 * DocletAbortException because it
71 * is not supported.
72 */
73 @Override
74 public void addContent(Content content) {
75 throw new DocletAbortException("not supported");
76 }
78 /**
79 * Adds content for the StringContent object. The method escapes
80 * HTML characters for the string content that is added.
81 *
82 * @param strContent string content to be added
83 */
84 @Override
85 public void addContent(String strContent) {
86 appendChars(strContent);
87 }
89 /**
90 * {@inheritDoc}
91 */
92 @Override
93 public boolean isEmpty() {
94 return (stringContent.length() == 0);
95 }
97 @Override
98 public int charCount() {
99 return RawHtml.charCount(stringContent.toString());
100 }
102 /**
103 * {@inheritDoc}
104 */
105 @Override
106 public String toString() {
107 return stringContent.toString();
108 }
110 /**
111 * {@inheritDoc}
112 */
113 @Override
114 public boolean write(Writer out, boolean atNewline) throws IOException {
115 String s = stringContent.toString();
116 out.write(s);
117 return s.endsWith(DocletConstants.NL);
118 }
120 private void appendChars(String s) {
121 for (int i = 0; i < s.length(); i++) {
122 char ch = s.charAt(i);
123 switch (ch) {
124 case '<': stringContent.append("<"); break;
125 case '>': stringContent.append(">"); break;
126 case '&': stringContent.append("&"); break;
127 default: stringContent.append(ch); break;
128 }
129 }
130 }
131 }