On Thu, 4 Oct 2012, Andreas Mang wrote:
Hi there,
As Aditya mentioned in a former posting (*) that "\text{ ... }" should
scale properly when used as super- or subscript, I have prepared a
minimal example to demonstrate that it doesn't. In my document I have
switched from "\text{ }" to "\normal", which works.
There is another bug with \text.
{\switchtobodyfont[sans] $\text{sans}$}
does not switch to sans font. Both the incorrect scaling and wrong font
switch can be corrected by restoring the old definition of \text in
math-ini.mkiv. Based on the comments in that file, this will come at a
high penalty on speed. (Slow but correct is better than fast but wrong!)
\unprotect
\def\math_text_choice_indeed#1#2#3% no \everymath !
{\hbox{\everymath{#1}\switchtobodyfont [#2]#3}} % 15 sec
%{\hbox{\everymath{#1}\setcurrentfontbody{#2}#3}} % 3 sec (no math)
\protect
%% Example
\starttext
$f_{\text{text $a+b$}_{\text{text $a+b$}_{\text{text $a+b$}}}}$
{\switchtobodyfont[sans] $f_{\text{text $a+b$}_{\text{text
$a+b$}_{\text{text $a+b$}}}}$}
$f_{{\normal text}_{{\normal text}_{\normal text}}}$
\stoptext
Aditya
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