Dear list,

I have seen the use of bloc= ks mechanism with and without a start/stop combination.

It is not clear to me in which cases it = is required to also include a start/stop combination in this mechanism.

\beginquestion

\startquestion

Question A<= /span>

\stopquestion<= /span>

\endquestion

\beginanswer

\startanswer

Answer A

\stopanswer

\endanswer

Regards,

Jan Willem Flamma

From: Hans Ha= gen
Sent: Tuesday, 9 June 2020 09:37
To: mailing list for ConTeXt users; Fabrice L
Subject: Re: [NTG-c= ontext] start/stop executed conditionally on mode ?

On 6/8/2020 9:53 PM, Fabri= ce L wrote:

>> Le 7 juin 2020 =C3=A0 23:19, Aditya Mahajan &= lt;adityam@umich.edu

>> <mailto:adityam@u= mich.edu>> a =C3=A9crit :

>> =

>> On Sun, 7 Jun 2020, Fabrice L wrote= :

>>> Dear List,

>>>

>>> I would like to insert a page usin= g (ideally) start/stop

>>> instructions. = The problem is that this page should be inserted only

>>> in a certain mode. Consulting the mailing list, I thought = the

>>> following code was working, but i= t=E2=80=99s not ! The code is executed in

>>= > the mode as expected, but the following instructions ("Some other=

>>> text... =C2=BB in the exemple) is no= t typeset.

>>>

>>> Here is a minimal (not working!) example:

>>>

>= ;>> % =E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94= =E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2= =80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80= =94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94= =E2=80=94=E2=80=94=E2=80=94=E2=80=94

>>> \= unexpanded\def\StartQuestionsList{

>>> \st= artmode[ClassRoom] \page[yes] Here are some questions: \blank

>>> }

>>> \unexp= anded\def\StopQuestionsList{

>>> \page[yes= ] \stopmode

>>> }

= >>> \definestartstop[Questions][

>>&= gt; before=3D\StartQuestionsList,

>>> afte= r=3D\StopQuestionsList

>>> ]

>>>

>>= >

>>> \startQuestions<= /p>

>>> Question A=E2=80=A6.

>>> Question B=E2=80=A6.

>>&g= t; \stopQuestions

>>>

>>> Some other text...

>>> % =E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2= =80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80= =94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94= =E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2= =80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94

One of t= he oldest mechanism available ... blocks:

&nbs= p;

\enablemode[classroom] % comment this

<= p class=3DMsoNormal>

\defineblock[= Question]

\doifmode {classroom} {

=C2=A0=C2=A0=C2=A0=C2=A0 \= keepblocks[Question]

}

\starttext

=C2=A0=C2=A0=C2=A0=C2=A0 Text A

=C2=A0=C2=A0= =C2=A0=C2=A0 \beginQuestion

=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0 Question A=E2=80=A6.

= =C2=A0=C2=A0=C2=A0=C2=A0 \endQuestion

=C2=A0 =C2=A0=C2=A0=C2=A0Text B

=C2=A0=C2=A0=C2=A0=C2= =A0 \beginQuestion

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0 Question B=E2=80=A6.

=C2=A0=C2= =A0=C2=A0=C2=A0 \endQuestion

<= p class=3DMsoNormal>=C2=A0=C2=A0=C2=A0=C2=A0 \page

=C2=A0=C2=A0=C2=A0=C2=A0 \doifnot= mode {classroom} {

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0 \useblocks[Question]

=C2=A0=C2= =A0=C2=A0=C2=A0 }

\stoptext

-----------------------------------------------------------------=

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Hans Hagen | PRAGMA = ADE

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Ridderstraat 27 | 8061 GH Hasselt |= The Netherlands

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0 tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl

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