How can I unpack the gzipped tar file?
On Unix, try using GNU tar, if you’re not already. (If you’re using Linux, you’re almost certainly using GNU tar.) For some reason we don’t understand, it doesn’t seem to unpack with classic Unix tar. Make sure you specify the -z option if you are not gunzipping it in advance: tar -xzf filename. On Windows, it unpacks fine with most common tools, such as WinZip or 7-Zip. The latter is open source. (As of Sep 2007, WinRAR doesn’t work: it apparently does not handle tar files correctly.) On the Mac, just double-click it to unpack. The default unarchiver (BOMArchiveHelper) works fine. To make it easier to run the parser from the GUI by double-clicking, you should rename lexparser-gui.csh to lexparser-gui.command. If it won’t unpack, you normally have either a corrupted download (try downloading it again) or there is some configuration error on your system, which we can’t help with. The download should be 60,783,166 bytes with an MD5 checksum of 6a4929a2d4e93697ea9d688ec63e3d6a (for versio