Message-ID: <1aedcb2a-b8ab-11ca-7db2-43af774cccfa@auckland.ac.nz>
Date: 2019-06-19T22:49:50Z
From: Rolf Turner
Subject: [R-pkg-devel] [FORGED] Re: .Rd, LaTeX and Unicode
In-Reply-To: <3e74b5b1-02ce-5709-f71d-6e6f3954c447@gmail.com>
I may well be toadally out to luntch here (if so please excuse the added
noise) but perhaps the following may be of some help or relevance.
In a package that I wrote, I wanted to include the ? symbol in *.Rda
file. After a lot of thrashing about (and seeking advice from younger
and wiser heads) I used this strategy:
* I put "\encoding{UTF-8}" at the very start of the *.Rda file
(before the \name{ } command
* I made use of the ? symbol via the syntax:
\enc{Wei?}{Weiss}
Again I apologise if this is completely off the point.
cheers,
Rolf
On 19/06/19 8:50 PM, Serguei Sokol wrote:
> On 18/06/2019 17:10, Georgi Boshnakov wrote:
>>
>> Since April 2018 'utf8' is the default input encoding in LaTeX, see
>> http://anorien.csc.warwick.ac.uk/mirrors/CTAN/macros/latex/doc/ltnews.pdf
>> and they added some symbols in December.
> Interesting ... but still not sufficient. I have a fairly recent latex
> system:
> $ latex --version
> pdfTeX 3.14159265-2.6-1.40.19 (TeX Live 2018/Mageia)
>
> but unfortunately utf8 alone (and even including
> \usepackage[mathletters]{ucs}) cannot compile utf8 math expressions.
>
> I have also tried a full scale test on a tex file obtained with
> $ R CMD Rd2pdf --no-clean pkgname
> where I replaced
>
> \usepackage[utf8]{inputenc}
>
> by
>
> \usepackage[mathletters]{ucs}
> \usepackage[utf8x]{inputenc}
>
> and it did not compile either. In addition, I had to replace every
> occurrence of
>
> \inputencoding{utf8}
>
> by
>
> \inputencoding{utf8x}
>
> after what pdflatex worked like a charm.
>
> Serguei.
>
>>
>> -----Original Message-----
>> From: R-package-devel [mailto:r-package-devel-bounces at r-project.org]
>> On Behalf Of Martin Maechler
>> Sent: 18 June 2019 15:01
>> To: serguei.sokol at gmail.com; Hugh Parsonage
>> Cc: r-package-devel at r-project.org
>> Subject: Re: [R-pkg-devel] .Rd, LaTeX and Unicode
>>
>>>>>>> Hugh Parsonage
>>>>>>> ???? on Tue, 18 Jun 2019 20:03:41 +1000 writes:
>>
>> ???? > utf8x is deprecated
>> ???? >
>> https://tex.stackexchange.com/questions/13067/utf8x-vs-utf8-inputenc#13070
>>
>>
>> Hmm... interestingly, I've tried quite a few versions of the
>> above which started in 2011, but had been updated in April 2016 :
>> ??? https://tex.stackexchange.com/a/203804/7228
>> from where it seems that
>>
>> ????????? \usepackage[T1]{fontenc}
>> ????\usepackage[utf8]{inputenc}
>>
>> should be sufficient.? Further, note that from
>> ?? https://tex.stackexchange.com/a/238135/7228
>> the {ucs} package should no longer be needed since ca. 2013,
>> hence your \usepackage[mathletters]{ucs}? would not be needed either.
>>
>> HOWEVER:? After losing at least half an hour now, trying many
>> variants I found that the only version that works correctly for
>> me (with a teTeX / TeXlive version of 2018) is the version
>> Serguei Sokol proposes (below), including the use of the 'utf8x'
>> option *and* the 'ucs' package ...
>>
>> which is pretty surprising after having read the
>> tex.statexchange threads ...
>>
>> ???? > On Tue, 18 Jun 2019 at 7:52 pm, Serguei Sokol
>> <serguei.sokol at gmail.com>
>> ???? > wrote:
>>
>> ???? >> Hi,
>> ???? >>
>> ???? >> I am preparing a package where I would like to use UTF
>> characters in .Rd
>> ???? >> files. When the LaTeX comes to play, I got well known errors
>> e.g.:
>> ???? >> ! Package inputenc Error: Unicode character ? (U+2202)
>> ???? >> (inputenc)??????????????? not set up for use with LaTeX.
>> ???? >>
>> ???? >> It is coherent with what is said on this page
>> ???? >> https://developer.r-project.org/Encodings_and_R.html :
>> ???? >> "Since LaTeX cannot handle Unicode we would have to convert
>> the encoding
>> ???? >> of latex help files or use Lambda (and tell it they were in
>> UTF-8)."
>>
>> That whole document has been very important and crucial, written
>> by Prof Brian Ripley? who had worked a *LOT* to bring unicode to R,
>> -- but it has been written 2004-2005? and indeed, I think it is
>> probably fair to say that the above sentence no longer applies
>> to current LaTeX engines (including "simple" pdflatex)... though really,
>> I'm not the expert here, but I think it's a good point in time
>> to reconsider how much UTF8 should be allowed/supported in *.Rd files.
>>
>> One problem: This is (slightly) the wrong mailing list; this would have
>> been a perfect topic for 'R-devel' (discussing about new
>> features etc for R) instead....
>> ( but we'd rather keep it here for now.)
>>
>> Martin Maechler
>> ETH Zurich and R Core Team
>>
>>
>>
>> ???? >> But LaTeX can support UTF8 as shown with this small example:
>>
>> ? \documentclass{article}
>> ? \usepackage[mathletters]{ucs}
>> ? \usepackage[utf8x]{inputenc}
>> ? \begin{document}
>> ? The vorticity ? is defined as $? = ? ? u$.
>> ? \end{document}
>>
>> ???? >> I can compile it with my LaTeX without problem. May be you too?
>> ???? >> So my suggestion would be to place these two lines somewhere
>> in LaTeX
>> ???? >> header generated by R doc system:
>> ???? >> \usepackage[mathletters]{ucs}
>> ???? >> \usepackage[utf8x]{inputenc}
>> ???? >>
>> ???? >> Note "utf8x" and not just "utf8" which is crucial for this
>> example.
>> ???? >> With a hope that it would fix unicode errors from LaTeX.
>> ???? >>
>> ???? >> Best,
>> ???? >> Serguei