Re: [Gnu-arch-users] Re: [PATCH] my-project-id

[James Blackwell]

>     > Why not just set a regexp that will be matched against the fully
>     > qualified version name?
>
> That would be harder to use.
>
> For that matter, I'm tempted to suggest that the last component in a
> regexp set (version id) not be a regexp at all --- but be a range
> expression of version-ids.   E.g.: 
>
>
>       tla--.*--{1.1,1.2.1}

>
> which matches 
>
>       tla--devo--1.2
>
> but not
>
>       tla--devo--1.2.1.1
>
> What do you think of that?


I think you make your point. 

The simples regex I could come up with that could specify that range
was:

      tla--.*--1\.(1(\..*)|2)$

But even after making it, I'm still not *quite* sure that would exactly
match right all the time. 

Even experienced admins and coders are inclined to make basic mistakes
like forgetting to escape dot.

I vote for a range expression.




>
>
>     > In order to add a notion of priority, you can either keep all
>     > the REGEXP<->ID pairs in an ordered list and let the user change
>     > the ordering,
>
>
> Now that you mention it --- even within regexp lists, there is a need
> for order.   For example, what happens with:
>
>
>     % tla my-project-id tla--.*  ID1
>     % tla my-project-id .*--devo ID2
>
>     % tla my-project-id tla--devo--1.2
>     ????
>
> What's the output?  ID1 or ID2?  So, yes some mechanism is needed for
> users to order these things.
>
>
> -t
>
>
>
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>
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>


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