On Fri, Apr 11, 2008 at 9:39 AM, Hans Hagen <[EMAIL PROTECTED]> wrote:
> Aditya Mahajan wrote:
> > On Fri, 11 Apr 2008, Hans Hagen wrote:
> >
> >> Hi,
> >>
> >> concerning the mplibrary in mkiv ...
> >>
> >> - it does not use the metafun mem file; when formats are generated a
> >> special mem file is made and put alongside the context format
> >>
> >> - however, this only happens when a new version is found (is the case
> >> with a new zip), or when an error is encountered in the format
> >> (compatibility issue)
> >>
> >> - in case of doubt, or when you patch metafun, you can say
> >>
> >> ctxtool --touch
> >> texexec --make
> >>
> >> i will try to make this more robust in the future
> >>
> >> the new mkiv mp graphics implementations is prepared for mixed usage,
> >> i.e. we can use multiple metapost formats; i'm still not sure about the
> >> interface, for instance:
> >>
> >> \startuseMPgraphic{metafun:bla} ...
> >>
> >> \startuseMPgraphic{mpost:bla} ...
> >>
> >> or so, more news later
> >
> > This could break existing code. I sometimes use
> > \startuseMPgraphic{system:bla} and {system:blabla} etc to distinguish all
> > "system diagrams".
>
> sure, but seldom metafun: i suppose -)
>
> > How about
> >
> > 1. \defineMPreusegraphic[useMPgraphic][format=metafun]
> > \defineMPreusegraphic[useMPOSTgraphic][format=mpost]
> > and then one can use \startuseMPgraphic and \startuseMPOSTgraphic.
> >
> > 2. If you have to make the label of the graphic determine the format, then
> > maybe something like
> >
> > \startuseMPgraphic{::metafun::bla} so that it does not break existing
> > code.
>
> \startuseMPgraphic[metafun]{...} is also an option but not consistent,
> unless we provide
>
> \startuseMPgraphic[optional format][name][optional settings]
>
> which i somehow dislike
>
> > 3. What about \startMPcode, \startMPpage, and \processMPbuffer? I think
> > that the first approach will be easier to adapt.
>
> another option is:
>
> \useMPformat{metafun}
\setupsystem
[mpformat=metafun]
> (the reason for { }instead of [] is that it then can be used within []
> without extra {})
This was something i never understood in the past, the difference
between the "name" setting for buffers and MP graphics.
> yet another option is
>
> \startMPcode
> mpformat := "metafun"
> ...
> \stopMPcode
No.
Wolfgang
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