[NTG-context] RTL section heads

Mohammad Hossein Bateni bateni at gmail.com
Wed Apr 13 04:59:15 CEST 2016


As far as I remember, it was working fine with betas in December 2015 and
January 2016.

On Tue, Apr 12, 2016 at 10:15 PM, Otared Kavian <otared at gmail.com> wrote:

> Hi Hans and Mohammad Reza,
>
> I can confirm that the wrong behaviour of numbers and digits in Right to
> Left (more specifically Persian) is recent: indeed with
>
>         ConTeXt  ver: 2015.05.18 12:26 MKIV current  fmt: 2015.6.18  int:
> english/english
>
> from TeXLive 2015 the numbers and digits are rendered as they should. Is
> it related to some changes in LuaTeX?
>
> Best regards: OK
>
> > On 13 Apr 2016, at 02:46, Mohammad Hossein Bateni <bateni at gmail.com>
> wrote:
> >
> > Unfortunately when I use method=two for bidi, the numbers in the main
> body are written from right to left.  I'm starting to wonder whether it
> does anything nontrivial at all.
> >
> > \usemodule[simplefonts]
> > \setmainfont[ALM Fixed][features=arabic,range=arabic]
> >
> > \setupdirections[bidi=global,method=two]
> > \setupalign[r2l]
> >
> > \starttext
> >
> > سال ۲۰۱۶
> >
> > 2016
> >
> > \stoptext
> >
> >
> > I'm pretty sure this used to work (for example in version 2016.01.18 22:21).
> A similar piece of code is working fine on the website.  I'm using CONTEXT
> version: 2016.04.01 13:01.  I also verified that it is not working in
> version: 2016.04.10 23:52.
> >
> > On Mon, Apr 11, 2016 at 11:47 AM, Mohammad Hossein Bateni <
> bateni at gmail.com> wrote:
> > Thanks, Hans!  This does solve the problem with the list of numbers.
> And actually if I add a numberstyle field, I can the section heads the way
> I like.  Here is the setup that worked.  (I will update Wiki later.)
> >
> > \setupdirections[bidi=global,method=two]
> > \setupalign[r2l]
> >
> > \def\LTR#1{{\lefttoright#1}}
> > \def\leftpersiandecimals#1{\LTR{\persiandecimals{#1}}}
> > \defineconversion[leftpersiandecimals][\leftpersiandecimals]
> > \setuphead[chapter,title,section,subject]
> [conversion=leftpersiandecimals,numberstyle=\righttoleft]
> >
> > \defineseparatorset[dashsep][-,-,-,-]
> > \setuphead[section][sectionseparatorset=dashsep]
> >
> > On Mon, Apr 11, 2016 at 10:46 AM, Hans Hagen <pragma at wxs.nl> wrote:
> > On 4/11/2016 4:25 AM, Mohammad Hossein Bateni wrote:
> > Hans & Wolfgang,
> >
> > Do you have suggestions here?  How can I get the behavior I want for the
> > section head numbers?
> >
> > In fact, the following may be quite relevant.
> >
> > \usemodule[simplefonts]
> > \setmainfont[ALM Fixed][features=arabic,range=arabic]
> >
> > \setupdirections[bidi=global,method=default]
> > \setupalign[r2l]
> >
> > \starttext
> >
> > اعداد ۱، ۲، ۳ و ۴ را در نظر بگیرید.
> >
> > اعداد 1، 2، 3 و 4 را در نظر بگیرید.
> >
> > اعداد 1, 2, 3 و 4 را در نظر بگیرید.
> >
> > \stoptext
> >
> >
> > I expect the numbers 1, 2, 3 and 4 to appear in the same order from
> > right to left.  However, the visual order that I observe (regardless of
> > whether I use Persian digits or English digits, or whether I use Persian
> > or English commas) is 4, 1, 2, 3 (from left to right).  Is this a bug in
> > the bidi code?  If so, are there any workarounds?
> >
> > method=two
> >
> > Thanks,
> > Hossein
> >
> > On Fri, Apr 8, 2016 at 5:20 PM, Mohammad Hossein Bateni
> > <bateni at gmail.com <mailto:bateni at gmail.com>> wrote:
> >
> >     Hi,
> >
> >     This is concerning an RTL text.  I have one chapter and 10 sections
> >     under that.  My goal is to achieve the following.
> >     1) The number 10 should appear correctly with '1' visually to the
> >     left of '0'.
> >     2) The chapter number should visually appear to the right of the
> >     section number.
> >     3) Chapter and section numbers should be separated with a dash.
> >       (This is ignored in this email and I will follow up about it in
> >     another thread.  To get a minimal working example, I also do not try
> >     to change the numbers to use Persian digits.)
> >
> >     In particular, the headings will be visually something like the
> >     following (aligned to the right).
> >     elpmas 1
> >     txet 1-1
> >     txet 2-1
> >     txet 3-1
> >     ...
> >     txet 10-1
> >
> >     Here's the first attempt.
> >
> >     %% Attempt 1
> >     \setupalign[r2l]
> >
> >     \starttext
> >     \placecontent
> >
> >     \chapter{sample}
> >     \dorecurse{10}{\section{text}}
> >     \stoptext
> >
> >     The result is:
> >     elpmas 1
> >     txet 1-1
> >     ...
> >     txet 01-1
> >
> >
> >     Then I add "\setupdirections[bidi=global,method=default]" to the
> >     beginning and I get the most strange result (number right-aligned
> >     but texts left-aligned):
> >     sample                                    1
> >     text                                       1.1
> >     ...
> >     text                                     1.10
> >
> >
> >     A third attempt gives almost what I want (without period as the
> >     separator).
> >
> >     %% Attempt 3
> >     \setupalign[r2l]
> >
> >     \def\LTR#1{{\lefttoright#1}}
> >     \def\leftnumbers#1{\LTR{\numbers{#1}}}
> >     \defineconversion[leftnumbers][\leftnumbers]
> >     \setuphead[chapter,title,section,subject] [conversion=leftnumbers]
> >
> >     \starttext
> >     \placecontent
> >
> >     \chapter{sample}
> >     \dorecurse{10}{\section{text}}
> >     \stoptext
> >
> >
> >     The big problem is that in my RTL documents, I always have the
> >     setupdirections command, which messes things up here.  (This makes
> >     it difficult to one section name with English title, which should
> >     still be typeset on the right-hand side of the page.)  Note that in
> >     attempt 2 above, there were two issues:
> >     (1) Text and numbers appeared on the two far ends of the screen
> >     instead of being close to each other.  This does not happen when I
> >     use Farsi text.
> >     (2) Chapter number appears to the left of section number.
> >
> >
> >     %% Attempt 5
> >     \usemodule[simplefonts]
> >     \setmainfont[ALM Fixed][features=arabic,range=arabic]
> >
> >     \setupdirections[bidi=global,method=default]
> >     \setupalign[r2l]
> >
> >     \starttext
> >     \placecontent
> >
> >     \chapter{نمونه}
> >     \dorecurse{10}{\section{متن}}
> >     \stoptext
> >
> >
> >     Interestingly the table of contents looks fine if I put the number
> >     inside an LTR macro; still in the main body, the section heads are
> >     typeset incorrectly.
> >
> >     %% Attempt 6
> >     \usemodule[simplefonts]
> >     \setmainfont[ALM Fixed][features=arabic,range=arabic]
> >
> >     \setupdirections[bidi=global,method=default]
> >     \setupalign[r2l]
> >
> >     \def\LTR#1{{\lefttoright#1}}
> >     \def\leftnumbers#1{\LTR{\numbers{#1}}}
> >     \defineconversion[leftnumbers][\leftnumbers]
> >     \setuphead[chapter,title,section,subject] [conversion=leftnumbers]
> >
> >     \starttext
> >     \placecontent
> >
> >     \chapter{نمونه}
> >     \dorecurse{10}{\section{متن}}
> >     \stoptext
> >
> >
> >     I guess the solution is to get the entire section head number string
> >     (e.g., 1.10) to have RTL direction, however, each individual number
> >     string inside (say, 1 or 10) should be written LTR.  How can this be
> >     achieved?
> >
> >     The six TeX files (with corresponding PDF outputs) are attached.
> >
> >     BTW this is using ConTeXt ver: 2016.04.01 13:01 MKIV beta fmt:
> >     2016.4.7 int: english/english, running LuaTeX, Version beta-0.90.0
> >     (TeX Live 2016) on Mac OS X.
> >
> >     Thanks a lot,
> >     —MHB
> >
> >
> >
> >
> > --
> >
> > -----------------------------------------------------------------
> >                                           Hans Hagen | PRAGMA ADE
> >               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
> >       tel: 038 477 53 69 | www.pragma-ade.com | www.pragma-pod.nl
> > -----------------------------------------------------------------
> >
> >
> >
> ___________________________________________________________________________________
> > If your question is of interest to others as well, please add an entry
> to the Wiki!
> >
> > maillist : ntg-context at 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
> >
> ___________________________________________________________________________________
>
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to
> the Wiki!
>
> maillist : ntg-context at 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
>
> ___________________________________________________________________________________
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