Re: math typesetting problem in MKIV

[Taco Hoekwater <taco@elvenkind.com>]

Hi,

Taco Hoekwater wrote:
> Brian R. Landy wrote:
>> Hi, I have a small equation I am attempting to typeset.  Using MKII it
>> comes out fine, but under MKIV the text "non-perf. bal." is not typeset
>> correctly (non-perf is instead nonperf with the dash under the 'p', and
>> extra space appears after 'bal.')
> 
> It could be an engine problem in the handling of \mathchoice, I
> am checking it out. A slightly smaller erroneous file is:
> 
> \starttext
> \math {(\text{non\discretionary{-}{}{-}perf.})\over1}
> \stoptext
> 
> more later.

Properly fixing this could take me a while, so let me propose
a workaround for the time being. Add this to your preamble and
you should have proper output again:

\unexpanded\def\mathchoice#1#2#3#4%
   {{\ifcase\mathstyle #1\or#1\or#2\or#2\or#3\or#3\or#4\or#4\fi }}

Best wishes,
Taco
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