Re: [NTG-context] Preventing double title pages for nested content

21 May 2015


      
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Am 21.05.2015 um 23:44 schrieb Kate F :
On 21 May 2015 at 22:09, Wolfgang Schuster  wrote:
...
Am 21.05.2015 um 14:33 schrieb Kate F :
On 21 May 2015 at 09:06, Wolfgang Schuster 
wrote:
Am 21.05.2015 um 00:36 schrieb Kate F :
Hi,
There's been a misunderstanding here.
You're showing a structure which is a two-deep hierarchy (Libraries
containing Manpages). That's not what the structure in my example is,
and you're showing something which I think is different to what I'm
asking for. (Or I just can't see how to apply the technique you're
illustrating)
You have to add just another level to my example, nothing more.
The structure for my example is Volumes which contain either Libraries
*or* Manpages, and a Library contains Manpages. I'll draw out the tree
from my example again:
(this is the same as in my first email for this thread, but I'm
repeating it here for clarity)
\starttext
 \placecontent[list={Volume,Library,Manpage}]
\startVolume[title=Section 1: Programs]
     \dorecurse{3}{\startManpage[title=progxyz(1)] \input lorem
\stopManpage}
 \stopVolume
\startVolume[title=Section 2: Syscalls]
     \dorecurse{3}{\startManpage[title=syscallxyz(1)] \input lorem
\stopManpage}
 \stopVolume
\startVolume[title=Section 3: Libraries]
     \startLibrary[title=libjpeg]
         \dorecurse{3}{\startManpage[title=jpegapi_a(3)] \input
lorem \stopManpage}
     \stopLibrary
     \startLibrary[title=libpng]
         \dorecurse{3}{\startManpage[title=pngapi_a(3)] \input
lorem \stopManpage}
     \stopLibrary
     \startLibrary[title=libbmp]
         \dorecurse{3}{\startManpage[title=bmpapi_a(3)] \input
lorem \stopManpage}
     \stopLibrary
 \stopVolume
\startVolume[title=Section 4: Drivers]
     \dorecurse{3}{\startManpage[title=drvxyz(1)] \input lorem
\stopManpage}
 \stopVolume
\startVolume[title=Section 7mk: Makefiles]
     \dorecurse{3}{\startManpage[title=xyz.mk(1)] \input lorem
\stopManpage}
 \stopVolume
\stoptext
Please look at Volume 3; you can see it contains some Libraries
(libjpeg, libpng, libbmp). The other Volumes do not contain Libraries;
they just contain Manpages directly. So the ToC is:
Volume 1: "Programs"       <-- I want a title page for this
 ... manpages for (1)
Volume 2: "Syscalls"       <-- I want a title page for this
 ... manpages for (2)
Volume 3: "Libraries"   <-- no title page for this!! Because this
Volume contains Libraries
 Library "libjpeg"       <-- I want a title page for this
     ... manpages for (3) libjpeg
 Library "libpng"       <-- I want a title page for this
     ... manpages for (3) libpng
Library "libbmp"       <-- I want a title page for this
     ... manpages for (3) libbmp
Volume 4: "Drivers"       <-- I want a title page for this
 ... manpages for (4)
Volume 7: "Makefiles"       <-- I want a title page for this
 ... manpages for (7)
As I said in my original email, this grouping into libraries only
applies to Volume 3.
The effect I'm trying to achieve is to have a single title page before
each set of manpages. So I want a title page for "Programs",
"Syscalls", "libjpeg", "libpng", "libbmp", "Drivers", and "Makefiles".
But I do not want a title page for Volume 3 itself, "Libraries"
because that would be immediately followed by the title page for
libjpeg, and my aim is to avoid having two consecutive title pages. I
have indicated these with arrows above.
I hope that's clear. Sorry for repeating myself…
Sorry for resending nearly the same example for another time but it still
does what you asked for.
But it doesn't...
You have a page for Volume 3 (which is made blank due to your
\ifnum\structurelistsize=0):
You’re wrong, the test for \structurelistsize has nothing to do with the
empty page.
Volume 3: "Libraries"   <-- no title page for this!!
Instead, I'm trying to find how to not have this produce a page (or
some other way to achieve the same effect).
And you have no title pages for these:
Volume contains Libraries
 Library "libjpeg"       <-- I want a title page for this
     ... manpages for (3) libjpeg
 Library "libpng"       <-- I want a title page for this
     ... manpages for (3) libpng
Library "libbmp"       <-- I want a title page for this
These weren’t needed for the example
They were the whole point of what I was asking for help with.
\definehead [Volume]  [part]
\definehead [Library] [chapter]
\definehead [Manpage] [section]

\setuphead
  [Volume]
  [placehead=empty,
       after=\directsetup{libraryentries}]

\setuphead
  [Library]
  [  page=,
  placehead=empty,
   before=\directsetup{Library:before},
    after=\directsetup{Library:after}]

\startsetups[Library:before]
	\ifconditional\libraryentries
		\page
	\else
		\settrue\libraryentries
	\fi
\stopsetups

\startsetups[Library:after]
	\startframed[frame=off,width=\textwidth,height=\dimexpr\textheight-\strutdp\relax,align={middle,lohi}]
		\placeheadtext[Library]
	\stopframed
	\page
\stopsetups

\newconditional\libraryentries \settrue\libraryentries

\startsetups[libraryentries]
	\determinelistcharacteristics[Library]
	\ifnum\structurelistsize=0
		\startframed[frame=off,width=\textwidth,height=\dimexpr\textheight-\strutdp\relax,align={middle,lohi}]
			\placeheadtext[Volume]
		\stopframed
	\else
		\setfalse\libraryentries
	\fi	
\stopsetups

%\showframe[text][text]

\starttext

\placelist[Volume,Library,Manpage]

\startVolume[title=Section 1: Programs]
  \dorecurse{3}{\startManpage[title=progxyz(1)] \input lorem \stopManpage}
\stopVolume

\startVolume[title=Section 2: Syscalls]
  \dorecurse{3}
    {\startManpage[title=syscallxyz(1)]
     \input lorem
     \stopManpage}
\stopVolume

\startVolume[title=Section 3: Libraries]
  \startLibrary[title=libjpeg]
    \dorecurse{3}
      {\startManpage[title=jpegapi_a(3)]
       \input lorem
       \stopManpage}
  \stopLibrary
  \startLibrary[title=libpng]
    \dorecurse{3}
      {\startManpage[title=pngapi_a(3)]
	   \input lorem
       \stopManpage}
  \stopLibrary
  \startLibrary[title=libbmp]
    \dorecurse{3}
      {\startManpage[title=bmpapi_a(3)]
       \input lorem
       \stopManpage}
  \stopLibrary
\stopVolume

\startVolume[title=Section 4: Drivers]
  \dorecurse{3}{\startManpage[title=drvxyz(1)] \input lorem \stopManpage}
\stopVolume

\startVolume[title=Section 7mk: Makefiles]
  \dorecurse{3}{\startManpage[title=xyz.mk(1)] \input lorem \stopManpage}
\stopVolume

\stoptext

Wolfgang