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86 lines
2.8 KiB
Plaintext
86 lines
2.8 KiB
Plaintext
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// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <CoreFoundation/CoreFoundation.h>
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#include "base/logging.h"
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#include "base/mac/scoped_cftyperef.h"
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#include "base/numerics/safe_conversions.h"
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#include "base/strings/string16.h"
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#include "base/strings/string_piece.h"
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#include "base/strings/sys_string_conversions.h"
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#include "net/base/net_string_util.h"
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namespace net {
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namespace {
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bool CharsetToCFStringEncoding(const char* charset,
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CFStringEncoding* encoding) {
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if (charset == kCharsetLatin1 || strcmp(charset, kCharsetLatin1) == 0) {
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*encoding = kCFStringEncodingISOLatin1;
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return true;
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}
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// TODO(mattm): handle other charsets? See
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// https://developer.apple.com/reference/corefoundation/cfstringbuiltinencodings?language=objc
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// for list of standard CFStringEncodings.
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return false;
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}
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} // namespace
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// This constant cannot be defined as const char[] because it is initialized
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// by base::kCodepageLatin1 (which is const char[]) in net_string_util_icu.cc.
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const char* const kCharsetLatin1 = "ISO-8859-1";
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bool ConvertToUtf8(const std::string& text,
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const char* charset,
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std::string* output) {
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CFStringEncoding encoding;
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if (!CharsetToCFStringEncoding(charset, &encoding))
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return false;
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base::ScopedCFTypeRef<CFStringRef> cfstring(CFStringCreateWithBytes(
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kCFAllocatorDefault, reinterpret_cast<const UInt8*>(text.data()),
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base::checked_cast<CFIndex>(text.length()), encoding,
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false /* isExternalRepresentation */));
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if (!cfstring)
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return false;
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*output = base::SysCFStringRefToUTF8(cfstring.get());
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return true;
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}
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bool ConvertToUtf8AndNormalize(const std::string& text,
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const char* charset,
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std::string* output) {
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DCHECK(false) << "Not implemented yet.";
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return false;
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}
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bool ConvertToUTF16(const std::string& text,
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const char* charset,
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base::string16* output) {
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DCHECK(false) << "Not implemented yet.";
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return false;
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}
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bool ConvertToUTF16WithSubstitutions(const std::string& text,
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const char* charset,
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base::string16* output) {
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DCHECK(false) << "Not implemented yet.";
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return false;
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}
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bool ToUpper(const base::string16& str, base::string16* output) {
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base::ScopedCFTypeRef<CFStringRef> cfstring(base::SysUTF16ToCFStringRef(str));
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base::ScopedCFTypeRef<CFMutableStringRef> mutable_cfstring(
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CFStringCreateMutableCopy(kCFAllocatorDefault, 0, cfstring.get()));
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CFStringUppercase(mutable_cfstring.get(), NULL);
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*output = base::SysCFStringRefToUTF16(mutable_cfstring.get());
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return true;
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}
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} // namespace net
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