Hi List, I am converting problem sets from LaTeX to ConTeXt and ran into a puzzling problem. I define \sub to produce subscript text in math mode. (See definition below.) This worked for my ConTeXt book, but fails in the problem sets because in ConTeXt \sub is a special item command, and I use itemize to number problems. Obviously, I can rename my \sub command, but it is already used in hundreds of problems and solutions that I am converting. Is there a way to get my \sub to work in an itemize? I only need it in math mode. I will never use \sub for its ConTeXt itemizing purpose. Thanks! Gavin \define[1]\sub{_{\text{\rm\tf#1}}} \starttext $E\sub{final}$ is the final energy, but not in an itemize: \startitemize \item $E_{\text{\rm final}}$ is the final energy. \item $E\sub{final}$ is a mess. \stopitemize \stoptext
On 1/12/2022 7:34 PM, Gavin via ntgcontext wrote:
Hi List,
I am converting problem sets from LaTeX to ConTeXt and ran into a puzzling problem. I define \sub to produce subscript text in math mode. (See definition below.) This worked for my ConTeXt book, but fails in the problem sets because in ConTeXt \sub is a special item command, and I use itemize to number problems.
Obviously, I can rename my \sub command, but it is already used in hundreds of problems and solutions that I am converting. Is there a way to get my \sub to work in an itemize? I only need it in math mode. I will never use \sub for its ConTeXt itemizing purpose.
\appendtoks \define[1]\sub{_{\text{\rm\tf#1}}}% \to \everymathematics or nicer: \define[1]\MyMathSub{_{\text{\rm\tf#1}}} \appendtoks \let\sub\MyMathSub \to \everymathematics
Thanks! Gavin
\define[1]\sub{_{\text{\rm\tf#1}}}
\starttext
$E\sub{final}$ is the final energy, but not in an itemize:
\startitemize \item $E_{\text{\rm final}}$ is the final energy. \item $E\sub{final}$ is a mess. \stopitemize
\stoptext ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntgcontext@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntgcontext webpage : http://www.pragmaade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/contextmirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________
  Hans Hagen  PRAGMA ADE Ridderstraat 27  8061 GH Hasselt  The Netherlands tel: 038 477 53 69  www.pragmaade.nl  www.pragmapod.nl 
Thanks, Hans! Appending to \everymathematics is a powerful trick, which I will not overuse. Gavin
On Jan 12, 2022, at 12:14 PM, Hans Hagen
wrote: On 1/12/2022 7:34 PM, Gavin via ntgcontext wrote:
Hi List, I am converting problem sets from LaTeX to ConTeXt and ran into a puzzling problem. I define \sub to produce subscript text in math mode. (See definition below.) This worked for my ConTeXt book, but fails in the problem sets because in ConTeXt \sub is a special item command, and I use itemize to number problems. Obviously, I can rename my \sub command, but it is already used in hundreds of problems and solutions that I am converting. Is there a way to get my \sub to work in an itemize? I only need it in math mode. I will never use \sub for its ConTeXt itemizing purpose.
\appendtoks \define[1]\sub{_{\text{\rm\tf#1}}}% \to \everymathematics
or nicer:
\define[1]\MyMathSub{_{\text{\rm\tf#1}}}
\appendtoks \let\sub\MyMathSub \to \everymathematics
Thanks! Gavin \define[1]\sub{_{\text{\rm\tf#1}}} \starttext $E\sub{final}$ is the final energy, but not in an itemize: \startitemize \item $E_{\text{\rm final}}$ is the final energy. \item $E\sub{final}$ is a mess. \stopitemize \stoptext ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntgcontext@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntgcontext webpage : http://www.pragmaade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/contextmirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________

 Hans Hagen  PRAGMA ADE Ridderstraat 27  8061 GH Hasselt  The Netherlands tel: 038 477 53 69  www.pragmaade.nl  www.pragmapod.nl 
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Gavin

Hans Hagen