[racket-dev] The Clark XML tests & licensing

We have a `file/zip' library for creating ".zip" files, but we need a
`file/unzip' library. It should be fairly easy to implement in terms of
`inflate'. Maybe there's an implementation on Planet already?

Also, there's a limited `unzip' in "scribble/lncs/lang.rkt", because I
needed it to automatically download and unpack the LNCS style file.
That's possibly a useful starting point, if no other is available.

At Thu, 8 Mar 2012 11:30:23 -0600, Robby Findler wrote:
> Oh, but I see that this doesn't actually create the files. Probably
> something needs to be added to the library.
> 
> Sorry.
> 
> Robby
> 
> On Thu, Mar 8, 2012 at 11:29 AM, Robby Findler
> <robby at eecs.northwestern.edu> wrote:
> > I think you want 'inflate'. IIUC, .zip files contain 'pkzip'-format
> > compressed stuff.
> >
> > Robby
> >
> > On Thu, Mar 8, 2012 at 11:26 AM, Sam Tobin-Hochstadt <samth at ccs.neu.edu> 
> wrote:
> >> On Thu, Mar 8, 2012 at 11:52 AM, Robby Findler
> >> <robby at eecs.northwestern.edu> wrote:
> >>> Doesn't file/gunzip do that?
> >>
> >> From the documentation, that seems to be about files that use gzip,
> >> not zip.  I didn't think they were the same, but I don't know much
> >> about this stuff.
> >>
> >> Trying it, it doesn't seem to work:
> >>
> >> -> (gunzip "xmltest.zip")
> >> ; gnu-unzip: bad header [,bt for context]
> >>
> >>
> >>> On Thu, Mar 8, 2012 at 9:39 AM, Sam Tobin-Hochstadt <samth at ccs.neu.edu> 
> wrote:
> >>>> Summary: we are currently violating the license of James Clark's XML
> >>>> test suite, and should fix this.
> >>>>
> >>>> Currently, the `tests/xml' directory [1] contains a comprehensive
> >>>> collection tests for XML parsing from James Clark [2].  The
> >>>> readme.html file [3] in that directory states the license of that test
> >>>> suite:
> >>>>
> >>>>  Copyright (C) 1998 James Clark. All rights reserved. Permission is
> >>>>  granted to copy and modify this collection in any way for internal use
> >>>>  within a company or organization. Permission is granted to
> >>>>  redistribute the file <code>xmltest.zip</code> containing this
> >>>>  collection to third parties provided that no modifications of any kind
> >>>>  are made to this file. Note that permission to distribute the
> >>>>  collection in any other form is not granted.
> >>>>
> >>>> See in particular the last sentence.  We're clearly violating this
> >>>> license, since we distribute the unzipped collection.  We need to fix
> >>>> this.
> >>>>
> >>>> Fortunately, this should be easy to fix.  We need to do the following:
> >>>>
> >>>> 1. Remove the 'clark-tests' directory.
> >>>> 2. Add the 'xmltest.zip' file.
> >>>> 3. Unzip the file on-demand when running the tests.
> >>>>
> >>>> Currently, we don't have a Racket interface to unzip files.  We could
> >>>> use the command-line 'unzip' tool, or write such an interface., or
> >>>> perhaps someone's already written one.
> >>>>
> >>>> [1] 
> https://github.com/plt/racket/tree/master/collects/tests/xml/clark-tests
> >>>> [2] ftp://ftp.jclark.com/pub/xml/xmltest.zip
> >>>> [3] 
> https://github.com/plt/racket/blob/master/collects/tests/xml/clark-tests/readme.
> html
> >>>> --
> >>>> sam th
> >>>> samth at ccs.neu.edu
> >>>> _________________________
> >>>>  Racket Developers list:
> >>>>  http://lists.racket-lang.org/dev
> >>
> >>
> >>
> >> --
> >> sam th
> >> samth at ccs.neu.edu
> 
> _________________________
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