darcs patch: Fix the version-range parser to allow arbitrary expres...

Malcolm Wallace Malcolm.Wallace at cs.york.ac.uk
Fri Sep 11 06:52:50 EDT 2009


> This patch contains a typo, and does not compile for me.

Yes, I sent it off too quickly.  I attach a revised version of the  
patch, that fixes the typo, improves the parser by allowing  
parentheses in version range expressions, and adds a check that the  
new syntax is accepted only by cabal >= 1.8.

>  http://sites.google.com/site/rizsotto/patches/cabal-ticket212.darcs

I have been having great trouble finding a way to test my patch - e.g.  
darcs cabal-install does not build with darcs Cabal currently.  Since  
you appear to have a testing framework that is not yet incorporated  
into the standard Cabal repo, I would be very grateful if you could  
test the revised patch and let me know of any remaining errors.

> And I also tried to solve this ticket earlier, here is my solution:


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