charset_util.h

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/*
 * Copyright 2012 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http:///www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */



#ifndef PAGESPEED_KERNEL_BASE_CHARSET_UTIL_H_
#define PAGESPEED_KERNEL_BASE_CHARSET_UTIL_H_

#include "pagespeed/kernel/base/string_util.h"

namespace net_instaweb {

const char kUtf8Charset[]                  = "utf-8";
const char kUtf16BigEndianCharset[]        = "utf-16be";
const char kUtf16LittleEndianCharset[]     = "utf-16le";
const char kUtf32BigEndianCharset[]        = "utf-32be";
const char kUtf32LittleEndianCharset[]     = "utf-32le";

const char kUtf8Bom[]                  = "\xEF\xBB\xBF";
const char kUtf16BigEndianBom[]        = "\xFE\xFF";
const char kUtf16LittleEndianBom[]     = "\xFF\xFE";
const char kUtf32BigEndianBom[]        = "\x00\x00\xFE\xFF";
const char kUtf32LittleEndianBom[]     = "\xFF\xFE\x00\x00";

bool StripUtf8Bom(StringPiece* contents);

const StringPiece GetCharsetForBom(const StringPiece contents);

}  

#endif