[developers] MRS variable naming in recent cheap (LOGON)

Berthold Crysmann crysmann at ifk.uni-bonn.de
Wed May 6 17:36:53 CEST 2009

On Wed, 2009-05-06 at 15:15 +0200, Stephan Oepen wrote:
> > I have spotted some mysterious behaviour with  the recent version of
> > cheap coming with the LOGON branch: if used without the -t switch, event
> > variables are output as variable type i (see below), with the -t switch,
> > however, they surface as "e" (see below). 
> just for background: in the LOGON tree, `cheap' (and `flop') will run
> pre-compiled binaries from the PET `trunk'; `cheap -t' (and `flop -t'), 
> on the other hand, give you versions from the `cm' branch.  hence, for
> grammars that make use of chart mapping, i would recommend you always
> use the (LOGON-specific) `-t' option.
> > What is the reason for this? Is there a quick fix?
> i suspect that difference may have to do with VPM support, e.g. one of
> the two binaries may have been compiled against older MRS code.  i had
> not updated the `cheap' and `flop' binaries for quite some time, but i
> coincidentally re-compiled those binaries earlier today, from current
> PET `trunk' sources.
> so it may just work to update your LOGON tree (assuming you are on the
> SVN `trunk'), to make this asymmetry go away?

Yes. And, to my delight, the asymmetry is resolved in favour  of the
e's ;-)

Thanks a lot. 

Micha, you should also update. I've seen quite a good deal of i's in the
MRSs you sent me that should've been e's. 


>                                                          best  -  oe
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> +++ Universitetet i Oslo (IFI); Boks 1080 Blindern; 0316 Oslo; (+47) 2284 0125
> +++     CSLI Stanford; Ventura Hall; Stanford, CA 94305; (+1 650) 723 0515
> +++       --- oe at ifi.uio.no; oe at csli.stanford.edu; stephan at oepen.net ---
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