[NTG-context] Fwd: expansion and variables

[NTG-context] Fwd: expansion and variables

[Hans Hagen]

-------- Forwarded Message --------
Subject: Re: [NTG-context] expansion and variables
Date: Wed, 17 Jul 2024 23:10:23 +0200
From: Hans Hagen <j.hagen@xs4all.nl>
To: Henning Hraban Ramm <texml@fiee.net>

On 7/17/2024 10:40 PM, Henning Hraban Ramm wrote:
> Something’s wrong with my code.
> I’ll try to keep a status to output a certain marker only the first time 
> after a change. With the code below I get it never.
> 
> I guess it’s an expansion problem again, but I didn’t find the right 
> places for \expanded – if I use it in front of every \getvariable, I get 
> the output every time.
> 
> Please help…
> Hraban

\setevariable

> 
> \setvariable{Thing}{Status}{1}
> \setvariable{Thing}{PreviousStatus}{0}
> 
> \define[1]\startThing{
>    \setvariable{Thing}{PreviousStatus}{\getvariable{Thing}{Status}}
>    \setvariable{Thing}{Status}{#1}
>    <<< %
> 
> \doifnot{\getvariable{Thing}{Status}}{\getvariable{Thing}{PreviousStatus}}{%
>      \bold{\getvariable{Thing}{Status}}%
>    }%
> }
> 
> \def\stopThing{>>>\par}
> 
> \starttext
> 
> \startThing{A} a \stopThing
> \startThing{B} b \stopThing
> \startThing{A} c \stopThing
> \startThing{C} d \stopThing
> \startThing{C} e \stopThing
> \startThing{A} f \stopThing
> \startThing{A} g \stopThing
> \startThing{A} h \stopThing
> 
> \stoptext
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[NTG-context] Re: Fwd: expansion and variables

[Henning Hraban Ramm]

Am 17.07.24 um 23:10 schrieb Hans Hagen:
> \setevariable

Thank you, works!

Hraban
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maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
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wiki     : https://wiki.contextgarden.net
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