1/*
2 * Copyright (C) 2009 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32#include "WebEntities.h"
33
34#include "WebString.h"
35
36#include <string.h>
37#include <wtf/HashMap.h>
38#include <wtf/text/StringBuilder.h>
39#include <wtf/text/WTFString.h>
40
41namespace WebKit {
42
43WebEntities::WebEntities(bool xmlEntities)
44{
45    ASSERT(m_entitiesMap.isEmpty());
46    m_entitiesMap.set(0x003c, "lt");
47    m_entitiesMap.set(0x003e, "gt");
48    m_entitiesMap.set(0x0026, "amp");
49    m_entitiesMap.set(0x0027, "apos");
50    m_entitiesMap.set(0x0022, "quot");
51    // We add #39 for test-compatibility reason.
52    if (!xmlEntities)
53        m_entitiesMap.set(0x0027, String("#39"));
54}
55
56String WebEntities::entityNameByCode(int code) const
57{
58    if (m_entitiesMap.contains(code))
59        return m_entitiesMap.get(code);
60    return "";
61}
62
63String WebEntities::convertEntitiesInString(const String& value) const
64{
65    unsigned len = value.length();
66    const UChar* startPos = value.characters();
67    const UChar* curPos = startPos;
68
69    // FIXME: Optimize - create StringBuilder only if value has any entities.
70    StringBuilder result;
71    while (len--) {
72        if (m_entitiesMap.contains(*curPos)) {
73            // Append content before entity code.
74            if (curPos > startPos)
75                result.append(String(startPos, curPos - startPos));
76            result.append('&');
77            result.append(m_entitiesMap.get(*curPos));
78            result.append(';');
79            startPos = ++curPos;
80        } else
81            curPos++;
82    }
83    // Append the remaining content.
84    if (curPos > startPos)
85        result.append(String(startPos, curPos - startPos));
86
87    return result.toString();
88}
89
90} // namespace WebKit
91