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https://issues.apache.org/jira/browse/TIKA-1446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14178889#comment-14178889
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Bin Hawking commented on TIKA-1446:
-----------------------------------
The above attached is my fix, which is the old or new code in
tika-1.6\tika-parsers\src\main\java\org\apache\tika\parser\chm\
Please use diff to see my changes.
This fix addresses TIKA- 1430, 1446, 1447, 1448.
NOTE: My fix is not well tested and may be incomplete. And, because I am adding
new features to the chm parser for my own application,including parsing HHK and
HHC files for more metadata; there are some distractions in my revisions which
are not applicable to the original tika project. Sorry for the inconvenience.
> CHM parser : wrong decompression of aligned blocks
> --------------------------------------------------
>
> Key: TIKA-1446
> URL: https://issues.apache.org/jira/browse/TIKA-1446
> Project: Tika
> Issue Type: Bug
> Affects Versions: 1.7
> Reporter: Bin Hawking
> Priority: Critical
> Attachments: chm.zip
>
>
> If an embedded file contains aligned blocks, the parser outputs chaotic text
> or empty text as to this file.
> I have fixed it myself, corrected decompressAlignedBlock() and its
> preparation methods. Mostly this bug is due to misusing main tree/align
> tree/length tree. And some tree is built wrong.
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