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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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45
parser/html/nsHtml5MetaScannerCppSupplement.h Normal file
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsEncoderDecoderUtils.h"
#include "nsISupportsImpl.h"
#include "mozilla/dom/EncodingUtils.h"
using mozilla::dom::EncodingUtils;
void
nsHtml5MetaScanner::sniff(nsHtml5ByteReadable* bytes, nsACString& charset)
{
readable = bytes;
stateLoop(stateSave);
readable = nullptr;
charset.Assign(mCharset);
}
bool
nsHtml5MetaScanner::tryCharset(nsString* charset)
{
// This code needs to stay in sync with
// nsHtml5StreamParser::internalEncodingDeclaration. Unfortunately, the
// trickery with member fields here leads to some copy-paste reuse. :-(
nsAutoCString label;
CopyUTF16toUTF8(*charset, label);
nsAutoCString encoding;
if (!EncodingUtils::FindEncodingForLabel(label, encoding)) {
return false;
}
if (encoding.EqualsLiteral("UTF-16BE") ||
encoding.EqualsLiteral("UTF-16LE")) {
mCharset.AssignLiteral("UTF-8");
return true;
}
if (encoding.EqualsLiteral("x-user-defined")) {
// WebKit/Blink hack for Indian and Armenian legacy sites
mCharset.AssignLiteral("windows-1252");
return true;
}
mCharset.Assign(encoding);
return true;
}