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* \doifemptyelse
@ 2014-02-20 20:12 Pablo Rodriguez
  2014-02-20 20:39 ` \doifemptyelse Wolfgang Schuster
  0 siblings, 1 reply; 7+ messages in thread
From: Pablo Rodriguez @ 2014-02-20 20:12 UTC (permalink / raw)
  To: mailing list for ConTeXt users

Dear list,

I have the following sample:

\starttext

\chapter{Chapter}

.\doifemptyelse{\getmarking[section][current]}
    {\getmarking[chapter][current]}
    {\getmarking[section][current]}.

\section{Section}

.\doifemptyelse{\getmarking[section][current]}
    {\getmarking[chapter][current]}
    {\getmarking[section][current]}.

\stoptext

I must be missing something extremely basic, because I think that the
first condiitonal occurs when \getmarking[section][current] is empty
(dots have nothing in between).

How can I make the first conditional work?

Many thanks for your help,


Pablo
-- 
http://www.ousia.tk
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________


^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: \doifemptyelse
  2014-02-20 20:12 \doifemptyelse Pablo Rodriguez
@ 2014-02-20 20:39 ` Wolfgang Schuster
  2014-02-20 22:09   ` \doifemptyelse Pablo Rodriguez
  0 siblings, 1 reply; 7+ messages in thread
From: Wolfgang Schuster @ 2014-02-20 20:39 UTC (permalink / raw)
  To: mailing list for ConTeXt users


Am 20.02.2014 um 21:12 schrieb Pablo Rodriguez <oinos@gmx.es>:

> Dear list,
> 
> I have the following sample:
> 
> \starttext
> 
> \chapter{Chapter}
> 
> .\doifemptyelse{\getmarking[section][current]}
>    {\getmarking[chapter][current]}
>    {\getmarking[section][current]}.
> 
> \section{Section}
> 
> .\doifemptyelse{\getmarking[section][current]}
>    {\getmarking[chapter][current]}
>    {\getmarking[section][current]}.
> 
> \stoptext
> 
> I must be missing something extremely basic, because I think that the
> first condiitonal occurs when \getmarking[section][current] is empty
> (dots have nothing in between).
> 
> How can I make the first conditional work?

You can’t, markings are only reliable when you use them in the header of footer of the page.

To access the values of a heading you can use the \structurevariable and \namedstructurevariable commands.

\starttext

\chapter{Chapter}

A: \doifsomethingelse{\namedstructurevariable{section}{title}}
  {\namedstructurevariable{section}{title}}
  {\namedstructurevariable{chapter}{title}}

B: \structurevariable{title}

\section{Section}

A: \doifsomethingelse{\structurevariable{section}{title}}
  {\namedstructurevariable{section}{title}}
  {\namedstructurevariable{chapter}{title}}

B: \structurevariable{title}

\subsection{Subsection}

A: \doifsomethingelse{\structurevariable{section}{title}}
  {\namedstructurevariable{section}{title}}
  {\namedstructurevariable{chapter}{title}}

B: \structurevariable{title}

\stoptext

Wolfgang
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________


^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: \doifemptyelse
  2014-02-20 20:39 ` \doifemptyelse Wolfgang Schuster
@ 2014-02-20 22:09   ` Pablo Rodriguez
  2014-02-20 22:23     ` \doifemptyelse Wolfgang Schuster
  2014-02-20 22:32     ` \doifemptyelse Thangalin
  0 siblings, 2 replies; 7+ messages in thread
From: Pablo Rodriguez @ 2014-02-20 22:09 UTC (permalink / raw)
  To: mailing list for ConTeXt users

On 02/20/2014 09:39 PM, Wolfgang Schuster wrote:
> Am 20.02.2014 um 21:12 schrieb Pablo Rodriguez:
>> [...]
>> How can I make the first conditional work?
> 
> You can’t, markings are only reliable when you use them in the
> header of footer of the page.
> 
> To access the values of a heading you can use the \structurevariable
> and \namedstructurevariable commands.

Many thanks for your reply, Wolfgang.

My question was about headers, but I didn’t mention it to make a shorter
sample.

The code now is the following:

\setupheadertexts[\hfill\namedstructurevariable{chapter}{title}\hfill]
    [] []
    [\hfill\doifsomethingelse{\namedstructurevariable{section}{title}}
            {\namedstructurevariable{section}{title}}
            {\namedstructurevariable{chapter}{title}}\hfill]


Only a minor detail: is there a more proper way to center both headings?

Many thanks for your help,


Pablo
-- 
http://www.ousia.tk
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________


^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: \doifemptyelse
  2014-02-20 22:09   ` \doifemptyelse Pablo Rodriguez
@ 2014-02-20 22:23     ` Wolfgang Schuster
  2014-02-23  7:24       ` \doifemptyelse Pablo Rodriguez
  2014-02-20 22:32     ` \doifemptyelse Thangalin
  1 sibling, 1 reply; 7+ messages in thread
From: Wolfgang Schuster @ 2014-02-20 22:23 UTC (permalink / raw)
  To: mailing list for ConTeXt users


Am 20.02.2014 um 23:09 schrieb Pablo Rodriguez <oinos@gmx.es>:

> On 02/20/2014 09:39 PM, Wolfgang Schuster wrote:
>> Am 20.02.2014 um 21:12 schrieb Pablo Rodriguez:
>>> [...]
>>> How can I make the first conditional work?
>> 
>> You can’t, markings are only reliable when you use them in the
>> header of footer of the page.
>> 
>> To access the values of a heading you can use the \structurevariable
>> and \namedstructurevariable commands.
> 
> Many thanks for your reply, Wolfgang.
> 
> My question was about headers, but I didn’t mention it to make a shorter sample.

In this case this was a important part for the solution because it makes a difference
when you use \getmarking in \setupheadertexts or in the text.

> The code now is the following:
> 
> \setupheadertexts[\hfill\namedstructurevariable{chapter}{title}\hfill]
>    [] []
>    [\hfill\doifsomethingelse{\namedstructurevariable{section}{title}}
>            {\namedstructurevariable{section}{title}}
>            {\namedstructurevariable{chapter}{title}}\hfill]
> 
> 
> Only a minor detail: is there a more proper way to center both headings?


You can use the simple version of \setupheadertexts and use \doifoddpageelse
to check whether you’re on a left or right page. When you make a test for content
of a \getmarking command you have to use \doiftext because the \doifempty etc.
checks don’t work in this case.

\startsetups[header]
  \doifoddpageelse
    {
      \getmarking[chapter]
    }
    {
      \doiftextelse
        {
          \getmarking[section]
        }
        {
          \getmarking[section]
        }
        {
          \getmarking[chapter]
        }
    }
\stopsetups


\setupheadertexts[\directsetup{header}]
\setupfootertexts[pagenumber]

\starttext

\chapter{Chapter A}

\page

\chapter{Chapter B}

\page

\dorecurse{5}
  {\chapter{Chapter #1}
   \dorecurse{10}
     {\section{Section #1.##1}
	  \dorecurse{3}{\input knuth\par}}}

\stoptext

Wolfgang
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________


^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: \doifemptyelse
  2014-02-20 22:09   ` \doifemptyelse Pablo Rodriguez
  2014-02-20 22:23     ` \doifemptyelse Wolfgang Schuster
@ 2014-02-20 22:32     ` Thangalin
  2014-02-23  7:28       ` \doifemptyelse Pablo Rodriguez
  1 sibling, 1 reply; 7+ messages in thread
From: Thangalin @ 2014-02-20 22:32 UTC (permalink / raw)
  To: mailing list for ConTeXt users

Have you looked at:

http://wiki.contextgarden.net/Headers_and_Footers#Marginal_headings_and_centered_headings

?
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________


^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: \doifemptyelse
  2014-02-20 22:23     ` \doifemptyelse Wolfgang Schuster
@ 2014-02-23  7:24       ` Pablo Rodriguez
  0 siblings, 0 replies; 7+ messages in thread
From: Pablo Rodriguez @ 2014-02-23  7:24 UTC (permalink / raw)
  To: mailing list for ConTeXt users

On 02/20/2014 11:23 PM, Wolfgang Schuster wrote:
> Am 20.02.2014 um 23:09 schrieb Pablo Rodriguez <oinos@gmx.es>:
>> [...]
>> Only a minor detail: is there a more proper way to center both headings?
> 
> You can use the simple version of \setupheadertexts and use \doifoddpageelse
> to check whether you’re on a left or right page. When you make a test for content
> of a \getmarking command you have to use \doiftext because the \doifempty etc.
> checks don’t work in this case.

Many thanks for your reply, Wolfgang.

This was exactly what I needed. I must admit that I didn’t understood
what the simple version of \setupheadertexts was about. And \doiftext
(as well as \doifsomething) were totally unknown to me.

Many thanks again for your help,


Pablo
-- 
http://www.ousia.tk
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________


^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: \doifemptyelse
  2014-02-20 22:32     ` \doifemptyelse Thangalin
@ 2014-02-23  7:28       ` Pablo Rodriguez
  0 siblings, 0 replies; 7+ messages in thread
From: Pablo Rodriguez @ 2014-02-23  7:28 UTC (permalink / raw)
  To: mailing list for ConTeXt users

On 02/20/2014 11:32 PM, Thangalin wrote:
> Have you looked at:
> 
> http://wiki.contextgarden.net/Headers_and_Footers#Marginal_headings_and_centered_headings
> 
> ?

Many thanks for your reply, Thagalin.

I even compiled the sample code, but I hadn’t understood how the
\setupheadertexts worked with a single argument and changing headers for
double-sided pages.


Pablo
-- 
http://www.ousia.tk
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________


^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2014-02-23  7:28 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-02-20 20:12 \doifemptyelse Pablo Rodriguez
2014-02-20 20:39 ` \doifemptyelse Wolfgang Schuster
2014-02-20 22:09   ` \doifemptyelse Pablo Rodriguez
2014-02-20 22:23     ` \doifemptyelse Wolfgang Schuster
2014-02-23  7:24       ` \doifemptyelse Pablo Rodriguez
2014-02-20 22:32     ` \doifemptyelse Thangalin
2014-02-23  7:28       ` \doifemptyelse Pablo Rodriguez

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