gecko-dev/parser/html/nsHtml5MetaScannerCppSupple...

40 строки
1.3 KiB
C

/* 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 "nsISupportsImpl.h"
#include "mozilla/Encoding.h"
const mozilla::Encoding* nsHtml5MetaScanner::sniff(nsHtml5ByteReadable* bytes) {
readable = bytes;
stateLoop(stateSave);
readable = nullptr;
return mEncoding;
}
bool nsHtml5MetaScanner::tryCharset(nsHtml5String 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;
nsString charset16; // Not Auto, because using it to hold nsStringBuffer*
charset.ToString(charset16);
CopyUTF16toUTF8(charset16, label);
const mozilla::Encoding* encoding = Encoding::ForLabel(label);
if (!encoding) {
return false;
}
if (encoding == UTF_16BE_ENCODING || encoding == UTF_16LE_ENCODING) {
mEncoding = UTF_8_ENCODING;
return true;
}
if (encoding == X_USER_DEFINED_ENCODING) {
// WebKit/Blink hack for Indian and Armenian legacy sites
mEncoding = WINDOWS_1252_ENCODING;
return true;
}
mEncoding = encoding;
return true;
}