зеркало из https://github.com/mozilla/gecko-dev.git
Bug 488854 - In HTML5 parser Insert REPLACEMENT CHARACTER gracefully when Unicode converter returns failure
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Родитель
f6e5e19ce1
Коммит
7aa8302d18
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@ -1133,6 +1133,8 @@ nsHtml5Parser::WriteStreamBytes(const PRUint8* aFromSegment,
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PRInt32 byteCount = aCount - totalByteCount;
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PRInt32 utf16Count = NS_HTML5_PARSER_READ_BUFFER_SIZE - end;
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NS_ASSERTION(utf16Count, "Trying to convert into a buffer with no free space!");
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nsresult convResult = mUnicodeDecoder->Convert((const char*)aFromSegment, &byteCount, mLastBuffer->getBuffer() + end, &utf16Count);
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mLastBuffer->setEnd(end + utf16Count);
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@ -1141,9 +1143,22 @@ nsHtml5Parser::WriteStreamBytes(const PRUint8* aFromSegment,
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NS_ASSERTION((mLastBuffer->getEnd() <= NS_HTML5_PARSER_READ_BUFFER_SIZE), "The Unicode decoder wrote too much data.");
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if (convResult == NS_PARTIAL_MORE_OUTPUT) {
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if (NS_FAILED(convResult)) {
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++totalByteCount;
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++aFromSegment;
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mLastBuffer->getBuffer()[end] = 0xFFFD;
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mLastBuffer->setEnd(end + 1);
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if (mLastBuffer->getEnd() == NS_HTML5_PARSER_READ_BUFFER_SIZE) {
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mLastBuffer = (mLastBuffer->next = new nsHtml5UTF16Buffer(NS_HTML5_PARSER_READ_BUFFER_SIZE));
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}
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mUnicodeDecoder->Reset();
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if (totalByteCount == aCount) {
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*aWriteCount = totalByteCount;
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return NS_OK;
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}
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} else if (convResult == NS_PARTIAL_MORE_OUTPUT) {
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mLastBuffer = (mLastBuffer->next = new nsHtml5UTF16Buffer(NS_HTML5_PARSER_READ_BUFFER_SIZE));
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NS_ASSERTION(((PRUint32)totalByteCount < aCount), "The Unicode has consumed too many bytes.");
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NS_ASSERTION(((PRUint32)totalByteCount < aCount), "The Unicode decoder has consumed too many bytes.");
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} else {
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NS_ASSERTION(((PRUint32)totalByteCount == aCount), "The Unicode decoder consumed the wrong number of bytes.");
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*aWriteCount = totalByteCount;
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