setupitemgroup and 'command='

setupitemgroup and 'command='

[Thomas Floeren]

Hi,


I used to use the “command=” parameter when setting up itemize. Now I noticed that it introduces a spurious horizontal whitespace after the item symbol when the item is of type “\sym{}”.

I also noticed that the problem goes away if I use “inner=” instead of “command=”.


Example:

\setuppapersize [A6] 

\starttext
\start
\setupitemize [each][command={\setupwhitespace[none]}]
With \type{\command=}
\startitemize 
\item \dorecurse{20}{bla } 
\sym{Y} \dorecurse{20}{bla } 
\stopitemize
\stop

\setupitemize [each][inner={\setupwhitespace[none]}]
With \type{\inner=}
\startitemize 
\item \dorecurse{20}{bla } 
\sym{Y} \dorecurse{20}{bla } 
\stopitemize

\stoptext


This is with ConTeXt 2017.05.15 21:48. With an older ConTeXt, for example 2015.01.13 15:54, “inner=” and “command=” deliver identical, correct results.

So, I’m asking, has “command=” been deprecated or is it just a bug?

Or was I using it the wrong way, and “inner=” is the only correct parameter in the example above?

Thanks for any info,
Best wishes,

– Tom


-- 
For macOS:
http://dflect.net/context-typeset-tool/


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Re: setupitemgroup and 'command='

[Hans Hagen]

On 5/24/2017 6:28 PM, Thomas Floeren wrote:
> Hi,
> 
> 
> I used to use the “command=” parameter when setting up itemize. Now I noticed that it introduces a spurious horizontal whitespace after the item symbol when the item is of type “\sym{}”.
> 
> I also noticed that the problem goes away if I use “inner=” instead of “command=”.

command is applied to the text, try command=\WORD and after \sym is a 
space so it depends on what command does with it

> Example:
> 
> \setuppapersize [A6]
> 
> \starttext
> \start
> \setupitemize [each][command={\setupwhitespace[none]}]
> With \type{\command=}
> \startitemize
> \item \dorecurse{20}{bla }
> \sym{Y} \dorecurse{20}{bla }
> \stopitemize
> \stop
> 
> \setupitemize [each][inner={\setupwhitespace[none]}]
> With \type{\inner=}
> \startitemize
> \item \dorecurse{20}{bla }
> \sym{Y} \dorecurse{20}{bla }
> \stopitemize
> 
> \stoptext
> 
> 
> This is with ConTeXt 2017.05.15 21:48. With an older ConTeXt, for example 2015.01.13 15:54, “inner=” and “command=” deliver identical, correct results.
> 
> So, I’m asking, has “command=” been deprecated or is it just a bug?
> 
> Or was I using it the wrong way, and “inner=” is the only correct parameter in the example above?
\setupitemize [each][nowhite]


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               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
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Re: setupitemgroup and 'command='

[Thomas Floeren]

Hans, thanks for your swift reply…



> On 24. May 2017, at 19:31, Hans Hagen <pragma@wxs.nl> wrote:
> 
> On 5/24/2017 6:28 PM, Thomas Floeren wrote:
>> Hi,
>> I used to use the “command=” parameter when setting up itemize. Now I noticed that it introduces a spurious horizontal whitespace after the item symbol when the item is of type “\sym{}”.
>> I also noticed that the problem goes away if I use “inner=” instead of “command=”.
> 
> command is applied to the text, try command=\WORD and after \sym is a space so it depends on what command does with it


I see, \WORD does not introduce the whitespace. But I don’t understand why \setupwhitespace[none] should do anything with the space after \sym, what \WORD doesn’t do.


> 
>> Example:
>> \setuppapersize [A6]
>> \starttext
>> \start
>> \setupitemize [each][command={\setupwhitespace[none]}]
>> With \type{\command=}
>> \startitemize
>> \item \dorecurse{20}{bla }
>> \sym{Y} \dorecurse{20}{bla }
>> \stopitemize
>> \stop
>> \setupitemize [each][inner={\setupwhitespace[none]}]
>> With \type{\inner=}
>> \startitemize
>> \item \dorecurse{20}{bla }
>> \sym{Y} \dorecurse{20}{bla }
>> \stopitemize
>> \stoptext
>> This is with ConTeXt 2017.05.15 21:48. With an older ConTeXt, for example 2015.01.13 15:54, “inner=” and “command=” deliver identical, correct results.
>> So, I’m asking, has “command=” been deprecated or is it just a bug?
>> Or was I using it the wrong way, and “inner=” is the only correct parameter in the example above?
> \setupitemize [each][nowhite]


Tried that, but it does not the same as \setupwhitespace[none]. (It completely annihilates any whitespace.)

Compile this to see what I mean:



\definepapersize[Tmp][width=120mm,height=400mm]
\setuppapersize [Tmp]
\setupwhitespace[2\lineheight]

\startbuffer
bla, bla\crlf bla, bla 
\stopbuffer

\starttext

Normal text:

\getbuffer\par
\getbuffer

Itemize, unmodified:
\startitemize 
\item \getbuffer 
\sym{Y} \getbuffer 
\stopitemize

\start
\setupitemize [each][command={\setupwhitespace[none]}]
Itemize with \type{command={\setupwhitespace[none]}}:
\startitemize 
\item \getbuffer 
\sym{Y} \getbuffer 
\stopitemize
\stop

\start
\setupitemize [each][inner={\setupwhitespace[none]}]
Itemize with \type{inner={\setupwhitespace[none]}}:
\startitemize 
\item \getbuffer 
\sym{Y} \getbuffer 
\stopitemize
\stop

\start
\setupitemize [each][nowhite]
Itemize with \type{nowhite}:
\startitemize 
\item \getbuffer 
\sym{Y} \getbuffer 
\stopitemize
\stop

\stoptext


So it seems the only ways to get the desired result are either inner={\setupwhitespace[none]} or command={\setupwhitespace[none]}, where the first one seems to work correctly and the latter one introduces the whitespace with recent Betas. (well, recent = younger than 2 years or so)

Should I change all my existing documents to “inner”?


Thanks,
best,

– Tom

-- 
For macOS:	
http://dflect.net/context-typeset-tool/
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