Re: \bar missing in euler

[Aditya Mahajan <adityam@umich.edu>]

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On Fri, 21 Jul 2006, Aditya Mahajan wrote:

> On Tue, 11 Jul 2006, Hans Hagen wrote:
>
>> Adam Lindsay wrote:
>>> Makes sense. I'll look at the new definitions you just sent.
>>>
>>> On the "user" side, what do you imagine it would look like:
>>> \definetypeface [e] [mm] [math] [euler] [euler] [encoding=ec]
>>>
>>>
>> ^^^ this one (actually it listens to the outer encoding)
>
> I am missing something. I tried the following (with the alpha,
> cont-new.tex contains the new definitions), but get not accent with
> the following code.
>
> \startmathcollection[euler:texnansi]
>     \definemathsymbol [breve] [accent] [tf] ["15]
> \stopmathcollection
> \startmathcollection[euler:ec]
>     \definemathsymbol [breve] [accent] [tf] ["08]
> \stopmathcollection
>
>
> \definetypeface [e] [mm] [math] [euler] [euler] [encoding=ec]
> \setupbodyfont[e,10pt]
>
> \starttext
> $\breve e$
> \stoptext

I am restarting one of my old threads, so please be patient.

To restate the problem, some accents are missing from euler font. Adam 
suggested using a hack along the lines of latex to pull those accents 
from the text font, later Hans posted some code that took care of 
encoding and stuff. Hans added the code to cont-new.tex with a example 
usage in the comments.

I could never get the example to work.

Hans, the code in cont-new.tex is slightly differnt from the code that 
you posted on the ML. The code on the ML works, while the code in 
cont-new.tex does not.

The attached file compares the output of the code in cont-new.tex with 
the code posted on the ML. Can you look into it to see what is going 
on. Since euler is the only incomplete math font, the definitions for 
all the accents can be added to math-eul.tex.

Aditya

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\definetypeface [e] [mm] [math] [euler] [euler] [encoding=ec]
\setupbodyfont[e,10pt]
\starttext

\startbuffer
\startmathcollection[euler:texnansi]
    \definemathsymbol [breve] [accent] [tf] ["15]
\stopmathcollection
\startmathcollection[euler:ec]
    \definemathsymbol [breve] [accent] [tf] ["08]
\stopmathcollection

$\breve e$
\stopbuffer

Testing for code in \filename{cont-new.tex}
\start
  \getbuffer\typebuffer 
\stop

\startbuffer
\unprotect

 \def\dohandlemathtoken#1%
   {\csname
      \ifmmode
        \ifcsname\@mt@\outerencoding#1\endcsname
          \@mt@\outerencoding
        \else\ifcsname\@mt@\mathcollection#1\endcsname
          \@mt@\mathcollection
        \else\ifcsname\@mt@\nomathcollection#1\endcsname
          \@mt@\nomathcollection
        \else\ifcsname\characterencoding#1\endcsname
          \characterencoding
        \else
          \nocharacterencoding
        \fi\fi\fi\fi
      \else
        \ifcsname\characterencoding#1\endcsname
          \characterencoding
        \else\ifcsname\nocharacterencoding#1\endcsname
          \nocharacterencoding
        \else\ifcsname\@mt@\outerencoding#1\endcsname
          \@mt@\outerencoding
        \else\ifcsname\@mt@\mathcollection#1\endcsname
          \strippedcsname\mathematics
 \expandafter\endcsname\csname\@mt@\mathcollection
        \else\ifcsname\@mt@\nomathcollection#1\endcsname
          \strippedcsname\mathematics
 \expandafter\endcsname\csname\@mt@\nomathcollection
        \else
          \nocharacterencoding
        \fi\fi\fi\fi\fi
      \fi
    #1\endcsname}
 \let\dohandlecommand\dohandlemathtoken

 \def\checkoutermathencoding
   {\ifx\outerencoding\empty
      \ifx\outerencoding\s!default\else
        \edef\outerencoding{\currentencoding}%
      \fi
    \fi}

 \startmathcollection[texnansi]
     \definemathsymbol [breve] [accent] [tf] ["15]
 \stopmathcollection
 \startmathcollection[ec]
     \definemathsymbol [breve] [accent] [tf] ["08]
 \stopmathcollection

 \prependtoks
    \checkoutermathencoding
 \to \everymathematics

 \let\outerencoding\empty

 $\breve e$
\stopbuffer

\page

Testing for code sent by Hans on the mailing list
\start
  \getbuffer\typebuffer 
\stop



\stoptext


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