fixing mpiv on installation path with spaces

fixing mpiv on installation path with spaces

[Mojca Miklavec]

Hello,

last year Taco added many patches to make sure that ConTeXt works even
when installed to "C:\Documents and Settings\ ..." and other weird
paths with spaces. However metapost in mkiv still fails. I figured out
that the following patch (which *won't* handle paths with quotation
marks properly) in mlib-run.lua fixes the problem:

    local preamble = [[
        boolean mplib ; mplib := true ;
        let dump = endinput ;
-        input %s ;
+        input "%s" ;
    ]]

but I'm not sure if there are any other side effects or if there are
other places that also need a patch. I didn't test with filenames with
spaces or with filenames with weird characters that need escaping.
Maybe it would be helpful to pass
    file.addsuffix(name,"mp")
through additional filter (instead of simply adding quotation marks)
that would also check if any other character needs escaping and add
quotation marks if needed.

Minimal example:
- install ConTeXt into path with spaces
- test with context on
    \starttext
    \startMPcode
    draw fullcircle scaled 3cm;
    \stopMPcode
    \stoptext

I would be grateful if somebody could take a look, so that a fix could
make it into TL 2012.

Thanks,
    Mojca
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Re: fixing mpiv on installation path with spaces

[Hans Hagen]

On 16-5-2012 01:45, Mojca Miklavec wrote:
> Hello,
>
> last year Taco added many patches to make sure that ConTeXt works even
> when installed to "C:\Documents and Settings\ ..." and other weird
> paths with spaces. However metapost in mkiv still fails. I figured out
> that the following patch (which *won't* handle paths with quotation
> marks properly) in mlib-run.lua fixes the problem:
>
>      local preamble = [[
>          boolean mplib ; mplib := true ;
>          let dump = endinput ;
> -        input %s ;
> +        input "%s" ;
>      ]]

I'm always a it puzzled by mp's file name handling as the name is not 
really a string. MP oracle Taco has to speak up ...

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: fixing mpiv on installation path with spaces

[Hans Hagen]

On 16-5-2012 01:45, Mojca Miklavec wrote:

> Maybe it would be helpful to pass
>      file.addsuffix(name,"mp")
> through additional filter (instead of simply adding quotation marks)
> that would also check if any other character needs escaping and add
> quotation marks if needed.

let's for the moment just add the quotes .. using " in a tex tds path is 
not that clever anyway and this piece of mp code only deals with loading 
the format which always is located in a sane path

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________