mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-26 21:50:53 +00:00
114 lines
4.0 KiB
C++
114 lines
4.0 KiB
C++
/*
|
|
* Copyright (C) 2017 Apple 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:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 "YarrUnicodeProperties.h"
|
|
|
|
#include "Yarr.h"
|
|
#include "YarrPattern.h"
|
|
#include <wtf/Optional.h>
|
|
#include <wtf/text/WTFString.h>
|
|
|
|
namespace JSC { namespace Yarr {
|
|
|
|
struct HashIndex {
|
|
int16_t value;
|
|
int16_t next;
|
|
};
|
|
|
|
struct HashValue {
|
|
const char* key;
|
|
int index;
|
|
};
|
|
|
|
struct HashTable {
|
|
int numberOfValues;
|
|
int indexMask;
|
|
const HashValue* values;
|
|
const HashIndex* index;
|
|
|
|
ALWAYS_INLINE int entry(WTF::String& key) const
|
|
{
|
|
int indexEntry = key.impl()->hash() & indexMask;
|
|
int valueIndex = index[indexEntry].value;
|
|
|
|
if (valueIndex == -1)
|
|
return -1;
|
|
|
|
while (true) {
|
|
if (WTF::equal(key, values[valueIndex].key))
|
|
return values[valueIndex].index;
|
|
|
|
indexEntry = index[indexEntry].next;
|
|
if (indexEntry == -1)
|
|
return -1;
|
|
valueIndex = index[indexEntry].value;
|
|
ASSERT(valueIndex != -1);
|
|
};
|
|
}
|
|
};
|
|
|
|
#include "UnicodePatternTables.h"
|
|
|
|
Optional<BuiltInCharacterClassID> unicodeMatchPropertyValue(WTF::String unicodePropertyName, WTF::String unicodePropertyValue)
|
|
{
|
|
int propertyIndex = -1;
|
|
|
|
if (unicodePropertyName == "Script" || unicodePropertyName == "sc")
|
|
propertyIndex = scriptHashTable.entry(unicodePropertyValue);
|
|
else if (unicodePropertyName == "Script_Extensions" || unicodePropertyName == "scx")
|
|
propertyIndex = scriptExtensionHashTable.entry(unicodePropertyValue);
|
|
else if (unicodePropertyName == "General_Category" || unicodePropertyName == "gc")
|
|
propertyIndex = generalCategoryHashTable.entry(unicodePropertyValue);
|
|
|
|
if (propertyIndex == -1)
|
|
return WTF::nullopt;
|
|
|
|
return Optional<BuiltInCharacterClassID>(static_cast<BuiltInCharacterClassID>(static_cast<int>(BuiltInCharacterClassID::BaseUnicodePropertyID) + propertyIndex));
|
|
}
|
|
|
|
Optional<BuiltInCharacterClassID> unicodeMatchProperty(WTF::String unicodePropertyValue)
|
|
{
|
|
int propertyIndex = -1;
|
|
|
|
propertyIndex = binaryPropertyHashTable.entry(unicodePropertyValue);
|
|
if (propertyIndex == -1)
|
|
propertyIndex = generalCategoryHashTable.entry(unicodePropertyValue);
|
|
|
|
if (propertyIndex == -1)
|
|
return WTF::nullopt;
|
|
|
|
return Optional<BuiltInCharacterClassID>(static_cast<BuiltInCharacterClassID>(static_cast<int>(BuiltInCharacterClassID::BaseUnicodePropertyID) + propertyIndex));
|
|
}
|
|
|
|
std::unique_ptr<CharacterClass> createUnicodeCharacterClassFor(BuiltInCharacterClassID unicodeClassID)
|
|
{
|
|
unsigned unicodePropertyIndex = static_cast<unsigned>(unicodeClassID) - static_cast<unsigned>(BuiltInCharacterClassID::BaseUnicodePropertyID);
|
|
|
|
return createFunctions[unicodePropertyIndex]();
|
|
}
|
|
|
|
} } // namespace JSC::Yarr
|