ZIP files now support Unicode filenames

at 2011-01-16 in Unicode, Examples by friebe (0 comments)

The XP Framework's io.archive.zip package allows reading and creating ZIP files and is tested against zip archives created by Info-ZIP 3.0, PHP's Zip class, 7-zip, WinRAR and Windows' "compressed folders".

In SVN head, we have made a couple of adjustments to be able to support files written by Java's java.util.zip package (which is internally used by the jar command):

Reading the central directory to find the compressed and uncompressed lengths, Java doesn't write this into the local file header - making it impossible to stream those files
Supporting character set detection on extraction - up until JDK7 Build 57, the Java API was incorrectly writing entry names in UTF-8 but not setting the so-called "Language Encoding bit (EFS)".
Supporting to write archives with Unicode names - a JDK build downloaded yesterday still chokes on non-Unicode filenames inside ZIP archives when no charset is given (default is "CP437" here).

This way we can now create JAR files, for example.

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ZIP files now support Unicode filenames

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