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}
(the reason for { }instead of [] is that it then can be used within []
without extra {})
yet another option is
\startMPcode
mpformat := "metafun"
...
\stopMPcode
and parse for it, but that has other disadvantages; anyhow ... more
thinking needed
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Hans Hagen | PRAGMA ADE
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