Re: [Module-build-general] use only The::Finest => 1.23;

[Brian I. <in...@tt...>]

On 19/02/03 13:54 -0600, Ken Williams wrote:
> 
> On Wednesday, February 19, 2003, at 01:44  PM, Brian Ingerson wrote:
> 
> > On 19/02/03 11:00 -0600, Ken Williams wrote:
> >>
> >> On Wednesday, February 19, 2003, at 12:46  AM, Brian Ingerson wrote:
> >>
> >>>           # Only use MyModule if version is between 0.30 and 0.50
> >>>           # but not 0.36; or if version is >= to 0.55.
> >>>           use only MyModule => '0.30-0.50 !0.36 0.55-', qw(:all);
> >>
> >> I'm not sure I understand when the parts are and-ed together and when
> >> they're or-ed together.  The above seems to mean
> >>
> >>           (0.30-0.50 and !0.36) or 0.55-
> >>
> >> or maybe actually
> >>
> >>           (0.30-0.50 or 0.55-) and !0.36
> >
> > Aren't those the same? For what version would they have a different
> > effect?
> 
> For those numbers they're the same, but for different numbers they're 
> not:
> 
>      (0.30-0.60 and !0.55) or 0.50-
> 
> isn't the same as
> 
>      (0.30-0.60 or 0.50-) and !0.55
> 
> because version 0.55 fulfills the first spec, but not the second.

Yeah, but that's a fairly silly spec. You get what you deserve.

I just wanted a syntax that could specify any reasonable condition and
be clean. I think what I have works nicely for this use case.

Can you think of a specification that couldn't be stated using only.pm's
syntax?

---

I took a look at the M::B doc and found:

    '>= 1.2, != 1.5, < 2.0'

So how would you do things like:

    '0.50-0.70 !0.60-0.65 0.80-0.90 1.00-'

BTW, I was also happy to accomplish full functionality with just '-' and
'!'. I avoided the '>', '>=', '<', '<=', '!=', '==' and ','. YAGNI.

> > I guess I need a more formal phrasing. Ideas?
> >
> 
> I think both of us could benefit from listening to someone who's done 
> this kind of thing before, too.

I suppose. I'm all ears for better ideas.

Cheers, Brian