I am not clear that this need depend on StataCorp
introducing new commands.
Any user-programmer could set up a system like
this using globals and locals.
In one main program a programmer could set
global frog_version 42
and in called programs could set
local frog_version 42
if `frog_version' != $frog_version {
di as err "frog: using a mix of old and new versions"
exit 498
}
and so on.
Nick
[email protected]
Stas Kolenikov
> > But that would gain you nothing, really. -mvis- is just part
> > of a package and the whole package would need
> > to be scanned in a bid to remove Stata 8 features,
> > which would I guess require considerable programming
> > expertise.
>
> Can I pick from here on my own thing? Each time I update Sophia
> Rabe-Heskteh's -gllamm-, some of the modules come out to be outdated,
> which I only find out when it crashes. (I know -net install- should
> work perfectly, but I found once that one of the older pieces was
> sitting in a directory of -adopath- prior to others, and thus caused
> problems until I deleted it from there). So for all five or six
> ado-files I have to type -which gllamm-, -which gllapred-, etc., and
> compare to the current versions on -gllamm- website.
>
> So my suggestion/wish/grumble to Stata Corp. is to set up something
> like -userversion- version control system, so that the internal
> version of the module is specified not through
>
> *! v.3.1 NJC 29 September 2004
>
> in the first line of the ado-file, but as a
>
> *! NJC 29 September 2004
> program define blahblah, eclass
> version 8.2
> userversion 3.1
> userneed blahblah_ll 1.11
> ...
> end
>
> Then whenever -blahblah- calls -blahblah_ll-, the -userversion- of the
> latter is checked against 1.11 and should be no less than that. Or an
> option like
>
> userneed blahblah_ll 1.11, strict
>
> can be provided for the lazy programmers like me who do not want to
> program their routines to be backward compatible, so that the current
> version of -blahblah- will only accept -userversion 1.11- to work
> with.
>
> Is this too much to ask for? Does anybody else in the stataworld need
> this except me?
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