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Re: version comparison functions
From: |
Michael Welsh Duggan |
Subject: |
Re: version comparison functions |
Date: |
Fri, 26 Aug 2005 11:08:13 -0400 |
User-agent: |
Gnus/5.110004 (No Gnus v0.4) Emacs/22.0.50 (gnu/linux) |
Jason Rumney <address@hidden> writes:
> Kim F. Storm wrote:
>
>>..but now that it has happened, I think it makes sense for these
>>functions to accept an optional argument to limit the number of
>>version string elements to compare. E.g.
>>
>> (version= "22.0.50" "22.0.50.37") => nil
>> (version= "22.0.50.36" "22.0.50.37") => nil
>>
>> (version= "22.0.50" "22.0.50.37" 3) => t
>> (version= "22.0.50.36" "22.0.50.37" 3) => t
>>
>>
> This may be useful as an addition to a general version number
> comparison, but for Emacs version numbers, I think we should DTRT based
> on the shorter of the two arguments:
>
> (version= "22" "22.0.50.37") => t
>
> Actually, I don't see why you need the second argument at all - won't it
> always be emacs-version you want to compare with?
No. It might be the version of an emacs package (like tramp-version).
--
Michael Welsh Duggan
(address@hidden)
Re: version comparison functions, Kim F. Storm, 2005/08/26
Re: version comparison functions, Stefan Monnier, 2005/08/26