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Re: Suggestions

From: Ben Pfaff
Subject: Re: Suggestions
Date: Wed, 28 Jan 2009 21:41:57 -0800
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.2 (gnu/linux)

John Darrington <address@hidden> writes:

> Regarding the length of value labels: removing the 60 byte limit will
> cause problems when it comes to writing the data to a .sav file.
> Whilst recent spss versions can read/write value labels of any length,
> it does so by using a special extension to the file format.
> There's no fundamental reason why pspp can't also support arbitrary
> length labels, but since one of the goals of pspp is to be compatible
> with spss, before it's done, we would need to support these extensions
> too.  If  you're interested in doing this work, this will require a
> little bit of reverse engineering upon existing spss .sav files to
> discover how very long value labels are encoded
> (test/dissect-sysfile.c  might help you) and add the appropriate code
> to src/data/sys-file-writer.c and src/data/sys-file-reader.c 

If anyone can point to some .sav files that have extra-long
labels, then I'll implement support for longer labels myself.
"If a person keeps faithfully busy each hour of the working day, he
 can count on waking up some morning to find himself one of the
 competent ones of his generation."
--William James

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