Possible bug in verbatim

Possible bug in verbatim

[Idris Samawi Hamid]

Dear cartel,

There is an apparent bug in the verbatim mechanism. In the following example, 
the `A' is typed but the curly brackets are not typed after \head. \type works 
as expected in the other two instances. I tried \relax (and a couple of other 
hacks) but that does not help. Please advise.

Thnx in advance
Idris

=========================
% output=pdf interface=en

\type{ {A} }

\startitemize

\head\relax \type{ {A} }

\type{ {A} }

\stopitemize

\bye
=========================

============================
Professor Idris Samawi Hamid
Department of Philosophy
Colorado State University
Fort Collins, CO 80523

Re: Possible bug in verbatim

[Taco Hoekwater]

Idris Samawi Hamid wrote:
> Dear cartel,
> 
> \head\relax \type{ {A} }

Not a solution, but a workaround:

   \head\relax \expandafter\type\scantokens{{ {A} }}

(I don't know how to solve this)

Taco

Re: Possible bug in verbatim

[Hans Hagen]

Taco Hoekwater wrote:
> Idris Samawi Hamid wrote:
> 
>> Dear cartel,
>>
>> \head\relax \type{ {A} }
> 
> 
> Not a solution, but a workaround:
> 
>   \head\relax \expandafter\type\scantokens{{ {A} }}
> 
> (I don't know how to solve this)

I do, but i have no idea how robust it is ...

% in cont-new.tex

\unprotect

\def\dostartitemattributes#1{\dostartattributes{\??op\currentitemgroup#1}}
\def\dostopitemattributes   {\dostopattributes}

\def\complexdoitemgrouphead[#1]% beter in \complexdosom hangen met een if
   {\iffirstlist\else\doitembreak\allowbreak\fi
    \ifpackeditems\else\getitemparameter\itemlevel\c!beforehead\fi
    \iffirstlist\ifitemintro\else\ifcase\itemlevel % incr in \complexdosom
      \doitembreak\allowbreak
    \fi\fi\fi
    \complexdoitemgroupitem[#1]%
      \bgroup
      \dostartitemattributes\itemlevel\c!headstyle\c!headcolor\empty
      \ignorespaces
      \let\par\enditemhead} % brrrr but simple anyway

\def\enditemhead
   {\removeunwantedspaces
    \dostopitemattributes
    \egroup
    \iftextitems
      \space\ignorespaces
    \else
      \par
    \fi
    \doitembreak\nobreak
    \ifpackeditems\else\getitemparameter\itemlevel\c!afterhead\fi
    \doitembreak\nobreak
    \noindentation}

\protect

% test file

\starttext

\setupitemgroup[itemize][1][headcolor=red,headstyle=bold] \setupcolors[state=start]

(\type{ {A} })

\startitemize

\head \input tufte (\type{ {A} }) \input tufte \par \input tufte
\item \input tufte (\type{ {A} })   \input tufte

\stopitemize

\stoptext

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Re: Possible bug in verbatim

[Willi Egger]

Hi Idris,

Asking for brace-trickery ...

What about: \textbraceleft\type{A}\textbraceright


Kind regards

Willi (member of the gang)
Idris Samawi Hamid wrote:
> Dear cartel,
> 
> There is an apparent bug in the verbatim mechanism. In the following example, 
> the `A' is typed but the curly brackets are not typed after \head. \type works 
> as expected in the other two instances. I tried \relax (and a couple of other 
> hacks) but that does not help. Please advise.
> 
> Thnx in advance
> Idris
> 
> =========================
> % output=pdf interface=en
> 
> \type{ {A} }
> 
> \startitemize
> 
> \head\relax \type{ {A} }
> 
> \type{ {A} }
> 
> \stopitemize
> 
> \bye
> =========================
> 
> ============================
> Professor Idris Samawi Hamid
> Department of Philosophy
> Colorado State University
> Fort Collins, CO 80523
> 
> _______________________________________________
> ntg-context mailing list
> ntg-context@ntg.nl
> http://www.ntg.nl/mailman/listinfo/ntg-context

Re: Possible bug in verbatim

[Nikolai Weibull]

Idris Samawi Hamid, April 14:

> \type{ {A} }

Wait, what?  You can have nested braces in \type?  I had no idea!  That
actually saves me a lot of trouble, thanks,
        nikolai

-- 
Nikolai Weibull: now available free of charge at http://bitwi.se/!
Born in Chicago, IL USA; currently residing in Gothenburg, Sweden.
main(){printf(&linux["\021%six\012\0"],(linux)["have"]+"fun"-97);}

RE: Possible bug in verbatim

[Idris Samawi Hamid]

Hi Willi
>===== Original Message From Willi Egger <w.egger@boede.nl> =====
>Hi Idris,
>
>Asking for brace-trickery ...
>
>What about: \textbraceleft\type{A}\textbraceright

Wow! that's ingenious;)

Thank you Willi, Taco, and Hans for your help on this.

best
Idris

============================
Professor Idris Samawi Hamid
Department of Philosophy
Colorado State University
Fort Collins, CO 80523