[luatex] incompatible change to mathcode

[Khaled Hosny]

On Wed, May 09, 2012 at 11:41:36PM +0900, Kazuki Maeda wrote:
> Dear all
> 
> Thanks for the commit #6176 by Khaled Hosny.
> I have tried the bm.sty sample code submitted to LaTeX Project
> http://www.latex-project.org/cgi-bin/ltxbugs2html?pr=tools/4188
> with rev 4410.
> 
> 
> This is LuaTeX, Version beta-0.71.0-2012050922
>  \write18 enabled.
> (./test.tex
> LaTeX2e <2011/06/27>
> LuaTeX adaptation of babel <v3.8l-luatex-1.5> and hyphenation patterns for engl
> ish, dumylang, nohyphenation, loaded.
> (/usr/local/texlive/2011/texmf-dist/tex/latex/base/article.cls
> Document Class: article 2007/10/19 v1.4h Standard LaTeX document class
> (/usr/local/texlive/2011/texmf-dist/tex/latex/base/size10.clo))
> (/usr/local/texlive/2011/texmf-dist/tex/latex/tools/bm.sty) (./test.aux)
> ! Extended mathchar used as mathchar (0).
> <to be read again>
>                    \begingroup
> l.4 $\bm{a}
>            $
> ?
> 
> 
> Why?

Active math characters, should be handled now as well.

Regards,
 Khaled