Hello Aditya, thanks for the code, I'll try something like that. Best regards, Lukas On Thu, 28 Feb 2019 12:54:06 +0100, Aditya Mahajan wrote:

On Thu, 28 Feb 2019, Procházka Lukáš Ing. wrote:

...

Hello,

I'm struggling with using modes to make a part of the text conditional.

Here is my code:

---- \def\b#1{\startmode[#1]} \def\e{\stopmode}

% \enablemode[100] % For optional usage

\starttext A \b{100} % Should be start of some conditional text from here ... B \e % ... to here \stoptext

Modes don't work that way. You can do something like this:

\define[1]\bbb {\doifnotmode{#1} {\grabbufferdata[dummy][bbb][eee]}}

\let\eee\relax

\enablemode[100]

\starttext A

\bbb{100} Inside mode 100 \eee

\bbb{101} Inside mode 101 \eee

\stoptext

Depending on the actual use case, there might be simpler ways.

Aditya

-- Ing. Lukáš Procházka | mailto:LPr@pontex.cz Pontex s. r. o. | mailto:pontex@pontex.cz | http://www.pontex.cz | IDDS: nrpt3sn | IČO: 40763439 Bezová 1658 147 14 Praha 4 Mob.: +420 702 033 396

I used \doifmode and friends for selection of mode dependent code. dr. Hans van der Meer

On 1 Mar 2019, at 01:24, Hans Hagen wrote:

On 2/28/2019 11:29 AM, Procházka Lukáš Ing. wrote:

...

Hello, I'm struggling with using modes to make a part of the text conditional. Here is my code: ---- \def\b#1{\startmode[#1]} \def\e{\stopmode} % \enablemode[100] % For optional usage \starttext A \b{100} % Should be start of some conditional text from here ... B \e % ... to here \stoptext ---- Compilation fails with: " tex error > tex error on line 0 in file : ! Emergency stop <*> cont-yes.mkiv <empty file> *** (job aborted, no legal \end found) " How to make the sample work? modes are like buffers ... don't wrap them in macros

(using names like \b \e is a bad idea anyway)

Hans

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