[developers] a toy grammar not working in LKB FOS and logon dist

Ann Copestake aac10 at cl.cam.ac.uk
Fri May 31 09:56:39 CEST 2019

I don't have time to look at it, but it looks like the sort of thing 
that used to happen when a file had windows end of line encoding and the 
system was expecting Linux or vice versa.  Dan wouldn't see it because 
the file would be autoconverted.  I thought we had made the systems 
robust to that, but maybe it's similar but not actually end of line.


On 31/05/2019 08:44, Dan Flickinger wrote:
> Hi Olga,
> I cannot reproduce the misbehavior you describe.  I loaded your 
> grammar into each of the two systems (LOGON LKB and LKB-FOS), and in 
> each system I saw no errors on loading, and I was able to successfully 
> parse the sentence "Kim adores snow in Oslo" (two parses produced, as 
> expected).  Note that there is no attempt to define a type "null" 
> (without asterisks) in your user-fns.lsp, so I also don't understand 
> how you could get the error messages you report about that undefined type.
> I hope you can provide more details about your setup if the problem 
> persists for you.
>  Dan
> ------------------------------------------------------------------------
> *From:* developers-bounces at emmtee.net <developers-bounces at emmtee.net> 
> on behalf of Olga Zamaraeva <olzama at uw.edu>
> *Sent:* Wednesday, May 29, 2019 10:24 AM
> *To:* developers at delph-in.net
> *Subject:* [developers] a toy grammar not working in LKB FOS and logon 
> dist
> Dear developers,
> We've been using a toy grammar (attached) in an introductory CompLing 
> class here at UW for a number of years. Mostly we've been using it 
> with a VM that was built for the grammar engineering class, but I seem 
> to be remembering very positively that I used to be able to use it 
> with e.g. LKB FOS a year ago.
> This year at least, it seems like I cannot use it with either LKB FOS 
> or the logon distribution of the LKB. On both versions of the LKB, I 
> observe the following:
> 1) The grammar doesn't load, complaining about the NULL type:
> Screen Shot 2019-05-29 at 9.13.14 AM.png
> 2) I suspected that this is because, in types.tdl, *null* has 
> asterisks but in e.g. user-fns.lsp it does not? Removing asterisks 
> around null seems to help with the errors but it doesn't look like the 
> grammar is working: there are no parses or even parse charts produced.
> Would anyone be so kind to take a look and advise me as to how to 
> update the toy grammar so it is working? Or perhaps this sounds like 
> something in my (two!) setups?..
> Thank you,
> -- 
> Olga Zamaraeva
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