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https://issues.apache.org/jira/browse/COMPRESS-176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13215732#comment-13215732
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Sebb commented on COMPRESS-176:
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The plain names use / and look OK when using CP437.
For some odd reason, the unicode extra fields use \ instead of /
I think that may be a Winzip bug - it does not make sense to use a different
separator for the extra fields.
To confirm this is a bug, it would be useful to see how other zip tools use the
extra fields - are there any?
Apart from Ant or other code based on Commons Compress, of course!
Alternatively, find some documentation as to the correct contents of the field.
My version of Winzip is too old to support the fields; if you have purchased a
more recent one perhaps you could e-mail their support desk?
A possible work-round would be to make the \ => / behaviour optional; I agree
we should not do this by default
> ArchiveInputStream#getNextEntry(): Problems with WinZip directories with
> Umlauts
> --------------------------------------------------------------------------------
>
> Key: COMPRESS-176
> URL: https://issues.apache.org/jira/browse/COMPRESS-176
> Project: Commons Compress
> Issue Type: Bug
> Components: Archivers
> Affects Versions: 1.3
> Environment: Windows 7
> Reporter: Wurstbrot mit Senf
> Attachments: test-7zip.zip, test-windows.zip, test-winzip.zip
>
>
> There is a problem when handling a WinZip-created zip with Umlauts in
> directories.
> I'm accessing a zip file created with WinZip containing a directory with an
> umlaut ("รค") with ArchiveInputStream. When creating the zip file the
> unicode-flag of winzip had been active.
> The following problem occurs when accessing the entries of the zip:
> the ArchiveEntry for a directory containing an umlaut is not marked as a
> directory and the file names for the directory and all files contained in
> that directory contain backslashes instead of slashes (i.e. completely
> different to all other files in directories with no umlaut in their path).
> There is no difference when letting the ArchiveStreamFactory decide which
> ArchiveInputStream to create or when using the ZipArchiveInputStream
> constructor with the correct encoding (I've tried different encodings CP437,
> CP850, ISO-8859-15, but still the problem persisted).
> This problem does not occur when using the very same zip file but compressed
> by 7zip or the built-in Windows 7 zip functionality.
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