[Rd] Plotmath on Fedora 31 broken with with pango >= 1.44 - workarounds?
g@bembecker @end|ng |rom gm@||@com
Mon Mar 30 08:43:49 CEST 2020
I do my devel/patch work on Mac so I can take a shot at testing your branch
in the next couple days.
On Sun, Mar 29, 2020 at 7:24 PM Paul Murrell <paul using stat.auckland.ac.nz>
> I have created an R branch that contains a potential fix ...
> This allows, for example, ...
> ... to specify that the OpenSymbol family should be used as the "symbol"
> font (e.g., for "plotmath") in R.
> This is just a separate branch for now because, while I have tested it
> under Unbuntu 18.04 and Fedora 31, I cannot even build R for Windows
> (right now) or Mac (ever) and I do not want to drop a bomb on R-devel at
> this stage of the release process for R 4.0.0.
> The attached file contains at least an outline of steps required to do a
> minimal test if anyone wants to try the fix on Linux.
> cc'ing Simon and Jeroen in case they are able to help with checking that
> this builds and works on Mac and/or Windows.
> - 'symbolfamily' can only be specified when a graphics device is opened,
> and it is then fixed for that device.
> - on Windows, for cairo-based devices, the "symbol" font is still
> hard-coded as "Standard Symbols L"
> On 30/03/20 8:15 am, Paul Murrell wrote:
> > Hi
> > Thanks for your input on this Iñaki and Nicolas.
> > I am starting testing an R fix for this problem today.
> > As suggested, the plan is to allow the R user to specify a font family
> > other than "symbol" for plotmath output (or, more generally, in R
> > parlance, for 'font=5' or 'fontface=5') on a Cairo-based graphics device.
> > Paul
> > On 27/03/20 11:30 pm, Iñaki Ucar wrote:
> >> On Wed, 25 Mar 2020 at 12:25, Nicolas Mailhot
> >> <nicolas.mailhot using laposte.net> wrote:
> >>> <snip>
> >>> R brought this all on itself by hardcoding a Windows-only “Symbol” font
> >>> family name in its default conf. Linux systems are UTF-8 by default for
> >>> ~20 years now, they don’t need the forcing of magic font families to
> >>> handle symbols not present in the 8-bit legacy Windows encodings.
> >>> The actual effect of this conf is not the selection of font files with
> >>> special and unusual symbols. It is to priorize fonts that match the
> >>> "Symbol" magic name. And those fonts are few and crumbling on Linux
> >>> systems, because no one has needed to bother with them since Linux
> >>> switched to UTF-8 last millenium.
> >>> Just stop using “Symbol” in R and things will work a lot better.
> >>> Alternatively, prepare to maintain the “Symbol” aliasing stack in
> >>> fontconfig (and fight with wine for it), because *no* *one* *else*
> >>> *cares* about this legacy Windows-specific stuff.
> >> So, in the light of Nicolas' input (thanks!), I think that font
> >> selection should be fixed upstream in R. I'd be happy to put all this
> >> together in R's bugzilla, but I don't have an account. Could someone
> >> please invite me?
> >> Iñaki
> >> ______________________________________________
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> >> https://stat.ethz.ch/mailman/listinfo/r-devel
> Dr Paul Murrell
> Department of Statistics
> The University of Auckland
> Private Bag 92019
> New Zealand
> 64 9 3737599 x85392
> paul using stat.auckland.ac.nz
> R-devel using r-project.org mailing list
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