Some math symbols fail in MetaPost in MKIV

Some math symbols fail in MetaPost in MKIV

[Andreas Schneider]

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Hi,

as it seems, some symbols in math mode seem to fail when put inside 
MetaPost. In the example I tried, both "~" and "|" were causing processing 
errors when used inside MetaPost (I tried both btex...etex as well as 
\sometxt). It works fine in MKII however.

The minimal example is attached to this mail.

Best Regards,
Andreas.

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\starttext
  The \quote{formula} as it should look like: $a~b|c$.

  Metapost:
  \startMPcode
    label(\sometxt{$a~b|c$}, (0, 0));
  \stopMPcode
\stoptext


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Re: Some math symbols fail in MetaPost in MKIV

[Aditya Mahajan]

On Mon, 2 Nov 2009, Andreas Schneider wrote:

> Hi,
>
> as it seems, some symbols in math mode seem to fail when put inside
> MetaPost. In the example I tried, both "~" and "|" were causing processing
> errors when used inside MetaPost (I tried both btex...etex as well as
> \sometxt). It works fine in MKII however.
>
> The minimal example is attached to this mail.

I don't know how to prevent expansion of ~ and | inside mp.  Hans, can you 
please check what is the right way to correct this.

However, note that ~ does not make sense in math mode anyways. As a 
work-around, you can use $a\ b\vert c$ inside metapost.

Aditya


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