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/*
* Copyright (C) 2009 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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.
*/
#include "config.h"
#include "WebEntities.h"
#include <string.h>
#include "HTMLEntityTable.h"
#include "PlatformString.h"
#include "StringBuilder.h"
#include <wtf/HashMap.h>
#include "WebString.h"
using namespace WebCore;
namespace WebKit {
namespace {
void populateMapFromXMLEntities(WTF::HashMap<int, WTF::String>& map)
{
ASSERT(map.isEmpty());
map.set(0x003c, "lt");
map.set(0x003e, "gt");
map.set(0x0026, "amp");
map.set(0x0027, "apos");
map.set(0x0022, "quot");
}
void populateMapFromHTMLEntityTable(WTF::HashMap<int, WTF::String>& map)
{
ASSERT(map.isEmpty());
const HTMLEntityTableEntry* entry = HTMLEntityTable::firstEntry();
const HTMLEntityTableEntry* end = HTMLEntityTable::lastEntry() + 1;
for (; entry != end; ++entry) {
String entity = entry->entity;
int value = entry->value;
ASSERT(value && !entity.isEmpty());
if (entity[entity.length() - 1] != ';')
continue; // We want the canonical version that ends in ;
// For consistency, use the lower case for entities that have both.
if (map.contains(value) && map.get(value) == entity.lower())
continue;
// Don't register %, ⊅ and &supl; for some unknown reason.
if (value == '%' || value == 0x2285 || value == 0x00b9)
continue;
map.set(value, entity);
}
// We add #39 for some unknown reason.
map.set(0x0027, String("#39"));
}
}
WebEntities::WebEntities(bool xmlEntities)
{
if (xmlEntities)
populateMapFromXMLEntities(m_entitiesMap);
else
populateMapFromHTMLEntityTable(m_entitiesMap);
}
String WebEntities::entityNameByCode(int code) const
{
if (m_entitiesMap.contains(code))
return m_entitiesMap.get(code);
return "";
}
String WebEntities::convertEntitiesInString(const String& value) const
{
unsigned len = value.length();
const UChar* startPos = value.characters();
const UChar* curPos = startPos;
// FIXME: Optimize - create StringBuilder only if value has any entities.
StringBuilder result;
while (len--) {
if (m_entitiesMap.contains(*curPos)) {
// Append content before entity code.
if (curPos > startPos)
result.append(String(startPos, curPos - startPos));
result.append("&");
result.append(m_entitiesMap.get(*curPos));
result.append(";");
startPos = ++curPos;
} else
curPos++;
}
// Append the remaining content.
if (curPos > startPos)
result.append(String(startPos, curPos - startPos));
return result.toString();
}
} // namespace WebKit
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