jkesselm commented on code in PR #166:
URL: https://github.com/apache/xalan-java/pull/166#discussion_r1465440629
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serializer/src/main/java/org/apache/xml/serializer/ToStream.java:
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@@ -1595,23 +1599,40 @@ else if (m_encodingInfo.isInEncoding(ch)) {
// not in the normal ASCII range, we also
// just leave it get added on to the clean characters
}
- else if (Encodings.isHighUTF16Surrogate(ch) && i < end-1
&& Encodings.isLowUTF16Surrogate(chars[i+1])) {
- // So, this is a (valid) surrogate pair
- if (! m_encodingInfo.isInEncoding(ch, chars[i+1])) {
- int codepoint = Encodings.toCodePoint(ch,
chars[i+1]);
- writeOutCleanChars(chars, i,
lastDirtyCharProcessed);
- writer.write("&#");
- writer.write(Integer.toString(codepoint));
- writer.write(';');
- lastDirtyCharProcessed = i+1;
- }
- i++; // skip the low surrogate, too
+ else if (Encodings.isHighUTF16Surrogate(ch)) {
+ // Store for later processing. We may be at the end of
a buffer,
+ // and must wait till low
surrogate arrives
+ // before we can do anything
with this.
+ writeOutCleanChars(chars, i, lastDirtyCharProcessed);
+ m_highUTF16Surrogate = ch;
+ lastDirtyCharProcessed = i;
+ }
+ else if (m_highUTF16Surrogate != 0 &&
Encodings.isLowUTF16Surrogate(ch)) {
+ // The complete utf16 byte sequence is now available
and may be serialized.
+ if (! m_encodingInfo.isInEncoding(m_highUTF16Surrogate,
ch)) {
Review Comment:
I'm a bit confused by your intent here.
The high surrogate is never in any of the encodings, and should never be
output by itself, so this case is firing incorrectly.
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