Re: [NTG-context] how to interrupt doublesided in particular instance
Thanks for that reminder Rik! Very timely! I had just noticed the
missing chapters in the TOC :-)
Julian
On 7/5/20 12:33 am, Rik Kabel wrote:
On 5/6/2020 00:54, jbf wrote:
So simple, Wolfgang. Thanks. I had got close amid all the varieties I
was trying out to achieve the same result. Perhaps my closest was:
\setuphead[chapter][pagebreak=chapterverso], but it couldn't quite
cut it!
Julian
On 6/5/20 1:57 pm, Wolfgang Schuster wrote:
jbf schrieb am 06.05.2020 um 01:31:
Hi list,
I have a document set up in a standard way
(\setuppagenumbering[alternative=doublesided]) to ensure that new
chapters always begin on a recto page, but in one particular
instance only, I want the new chapter to start on the next (verso)
page instead of creating a blank then starting on the recto side.
I thought I might have been able to force that with \page[no]
immediately after the previous chapter concluded or before
\chapter{My new chapter}, but this command is ignored (and may well
be the wrong command to achieve what I want).
Is there a way to interrupt the setup so the new chapter in this
case can start on the verso page?
Create a new heading for chapters which can start on left/right pages.
\setuppagenumbering[alternative=doublesided]
\definehead[mychapter][chapter]
\setuphead[mychapter][page=yes]
\starttext
\chapter{Right page}
\chapter{Right page}
\mychapter{New page}
\chapter{Right page}
\stoptext
Wolfgang
___
You may want the new /mychapter/ head to appear in the TOC and pdf
bookmarks as well, so take a look at /\setupcombinedlist/ and
/\placebookmarks/.
--
Rik
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[NTG-context] Retrieving original value of enviroment variable HOME
Hello,
before I run ConTeXt, I set a (new) variable "HOME" to point to a
particular directory.
ConTeXt changes its value during startup - it sets its value to
%USERPROFILE% - I guess it is to unify environment somehow for all
platforms ConTeXt supports; probably here:
data-ini.lua, ln. ~86
do
local homedir = osgetenv(ostype == "windows" and 'USERPROFILE' or
'HOME') or ''
if not homedir or homedir == "" then
homedir = char(127) -- we need a value, later we wil trigger on
it
end
homedir = file.collapsepath(homedir)
ossetenv("HOME", homedir) -- can be used in unix cnf files
<< HERE
ossetenv("USERPROFILE",homedir) -- can be used in windows cnf files
environment.homedir = homedir
end
But anyway - would it be possible to store the original value of HOME
environment variable (if set) before it gets changed during
initialization - e.g. to a Lua table?
- I would need to work with the original value in run-time (Win7 / WinX;
ConTeXt MkIV).
Best regards,
Lukas
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Re: [NTG-context] how to interrupt doublesided in particular instance
On 5/6/2020 00:54, jbf wrote:
So simple, Wolfgang. Thanks. I had got close amid all the varieties I
was trying out to achieve the same result. Perhaps my closest was:
\setuphead[chapter][pagebreak=chapterverso], but it couldn't quite cut
it!
Julian
On 6/5/20 1:57 pm, Wolfgang Schuster wrote:
jbf schrieb am 06.05.2020 um 01:31:
Hi list,
I have a document set up in a standard way
(\setuppagenumbering[alternative=doublesided]) to ensure that new
chapters always begin on a recto page, but in one particular
instance only, I want the new chapter to start on the next (verso)
page instead of creating a blank then starting on the recto side.
I thought I might have been able to force that with \page[no]
immediately after the previous chapter concluded or before
\chapter{My new chapter}, but this command is ignored (and may well
be the wrong command to achieve what I want).
Is there a way to interrupt the setup so the new chapter in this
case can start on the verso page?
Create a new heading for chapters which can start on left/right pages.
\setuppagenumbering[alternative=doublesided]
\definehead[mychapter][chapter]
\setuphead[mychapter][page=yes]
\starttext
\chapter{Right page}
\chapter{Right page}
\mychapter{New page}
\chapter{Right page}
\stoptext
Wolfgang
___
You may want the new /mychapter/ head to appear in the TOC and pdf
bookmarks as well, so take a look at /\setupcombinedlist/ and
/\placebookmarks/.
--
Rik
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[NTG-context] conflict between colored emoji and save/restore
When using a colored emoji font directly after a save/restore pair
in context mkiv following text gets lost:
\pdfvariable compresslevel=0
\font\fontB={file:seguiemj.ttf:mode=node;+colr;}
\starttext
\pdfextension save\relax
\pdfextension restore\relax
{\fontB \char"2603} % is not there
\stoptext
The problem is that the coordinate transformation from the restore
ends inside the emoji code:
/Span << /ActualText >> BDC
q
0.000 g
1 0 0 1 -70.867 -714.33967 cm %<
BT
(Such an save/restore part is e.g. inserted with a scaled graphics:
\externalfigure[tinypicture.pdf][width=1cm])
--
Ulrike Fischer
http://www.troubleshooting-tex.de/
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Re: [NTG-context] Definition of \registerpagerange (Henning Hraban Ramm)
Am Mittwoch, den 06.05.2020, 06:55 +0200 schrieb ntg-context-
requ...@ntg.nl:
> This doesn’t answer your question, but I found:
>
> \setupregister[index][compress=yes] % 14, 15 becomes 14-15
> \setupregister[index][compress=text] % 14, 15 becomes 14f.
>
> To change the "f."/"ff." text, you’d use:
>
> \setuplabeltext[de][following:singular=sq.,following:plural=sqq.]
>
> This is defined in tex/context/base/mkiv/lang-txt.lua
> and addressed in context/base/mkiv/strc-reg.mkiv in the definition of
> \registerpagerange:
>
> \unexpanded\def\registerpagerange#1#2#3#4#5#6#7#8% #1:class
> #2:processor content, content todo: -- configurable
> {\pushcurrentregister{#1}%
>\edef\p_pagenumber{\registerparameter\c!pagenumber}%
>\ifx\p_pagenumber\v!no\else
> \registerpageseparator
> \global\setconstant\c_strc_registers_page_state\plusone
> \dostarttagged\t!registerpagerange\empty
> \dostarttagged\t!registerfrompage\empty
> \withregisterpagecommand{#2}{#3}{#4}{#5}%
> \dostoptagged
> \ifconditional\c_strc_registers_following
>\ifnum#3=\numexpr#6-1\relax
> \labeltext{following:\s!singular}%
>\else
> \labeltext{following:\s!plural}%
>\fi
> \else
>\registeronepagerangeseparator
>\dostarttagged\t!registertopage\empty
>\withregisterpagecommand{#2}{#6}{#7}{#8}%
> \fi
> \dostoptagged
> \dostoptagged
>\fi
>\popcurrentregister}
>
> (see
> https://source.contextgarden.net/tex/context/base/mkiv/strc-reg.mkiv?search=singular
> )
>
>
> You should be able to combine the two "else" branches.
Thank you for answering. I have had looked into this source before and
tried exactly the same approach you descrived but I am on TeXlive 2019
where this is defined differently:
\unexpanded\def\registerpagerange#1#2#3#4#5#6#7#8% #1:class
#2:processor content, content todo: -- configurable
{\pushcurrentregister{#1}%
\edef\p_pagenumber{\registerparameter\c!pagenumber}%
\ifx\p_pagenumber\v!no\else
\registerpageseparator
\global\setconstant\c_strc_registers_page_state\plusone
\dostarttagged\t!registerpagerange\empty
\dostarttagged\t!registerfrompage\empty
\withregisterpagecommand{#2}{#3}{#4}{#5}%
\dostoptagged
\registeronepagerangeseparator
\dostarttagged\t!registertopage\empty
\withregisterpagecommand{#2}{#6}{#7}{#8}%
\dostoptagged
\dostoptagged
\fi
\popcurrentregister}
and, most importantly, does not work with this approach:
\unexpanded\def\registerpagerange#1#2#3#4#5#6#7#8% #1:class
#2:processor content, content todo: -- configurable
{ \pushcurrentregister{#1}%
\edef\p_pagenumber{\registerparameter\c!pagenumber}%
\ifx\p_pagenumber\v!no\else
\registerpageseparator
\global\setconstant\c_strc_registers_page_state\plusone
\dostarttagged\t!registerpagerange\empty
\dostarttagged\t!registerfrompage\empty
\withregisterpagecommand{#2}{#3}{#4}{#5}%
\dostoptagged
\ifnum#3=\numexpr#6-1\relax
f.%
\else
\registeronepagerangeseparator
\dostarttagged\t!registertopage\empty
\withregisterpagecommand{#2}{#6}{#7}{#8}%
\fi
\dostoptagged
\dostoptagged
\fi
\popcurrentregister}
May it be that parameters have changed since then?
Best regards
Stefan
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