[Rd] Writing in R // R 4.2.0 on Windows doesn't work with Dasher
Ben Bolker
bbo|ker @end|ng |rom gm@||@com
Mon May 16 19:51:01 CEST 2022
You'll probably have to wait a day or so for a new build. The
Windows binaries are only built once a day or so.
https://cran.r-project.org/bin/windows/base/rdevel.html was built on
2022-05-15.
Tomas's fix was only committed an hour ago:
https://github.com/wch/r-source/commit/9b6de510e6346da7ccb582d14a7699500751efc4
If you're really eager you can install Subversion and build from
source <https://developer.r-project.org/SVNtips.html> (or clone the
Github mirror etc.).
cheers
Ben Bolker
On 2022-05-16 1:45 p.m., Paulo Barata wrote:
>
> Dear Tomas,
>
> Thank you very much for dealing with this issue.
>
> You said: "I've committed a fix to R-devel, 82368". It happens that, at
> this very moment (Monday 16 May 18:44 UTC), The R-devel that exists on
> both the Austria and the 0-Cloud CRAN pages is this, with a different
> (smaller) number:
>
> This is a Windows 64 bit binary build of the 2022-05-15 r82362
> development snapshot of R
>
> Anyway, I installed and tried this R-devel r82362, and Dasher does not
> work with it.
>
> I am not able to find R-Devel 82368 on the CRAN site. Maybe I should
> wait a little more. Or maybe you could send me a proper link to that.
>
> Best regards,
>
> Paulo Barata
>
> ----------------------------------------------------------
>
> On 16/05/2022 14:08, Tomas Kalibera wrote:
>>
>> On 5/15/22 16:10, Paulo Barata wrote:
>>>
>>> To the R developers,
>>>
>>> I noticed today that R 4.2.0 responds to the "Enter" character of
>>> Dasher version 5.0.0 beta in "Direct Entry" mode. An "Enter" in
>>> Dasher causes the R prompt to jump to the next line, as an "Enter"
>>> should do.
>>>
>>> No other characters (letters, digits, special characters like + = & ~
>>> | # $) are accepted by R 4.2.0 through Dasher.
>>>
>>> The "Enter" shows that, somehow, the communication between Dasher and
>>> R 4.2.0 through the Windows system is not completely curtailed.
>>
>> Dear Paulo,
>>
>> thanks for the report and thanks to all for the useful comments in the
>> followup discussion. I've committed a fix to R-devel, 82368, and I
>> would be grateful if you could test whether it fixes the problem for
>> you. I've tested it only on a small example which is using the same
>> method to insert keys to Rgui as Dasher does.
>>
>> The problem is caused by a limitation in GraphApp, a library used by
>> Rgui and included in the R distribution. GraphApp has two modes:
>> Unicode windows (with this limitation) and non-Unicode windows
>> (without it). GraphApp uses Unicode windows when running in a
>> multi-byte locale, and as of R 4.2, this is the case for all systems
>> on recent Windows where the native encoding is UTF-8. This means that
>> most likely R 4.1.3 didn't work with Dasher on systems running in a
>> multi-byte locale and that most likely R 4.2.0 would work with Dasher
>> on old Windows systems (where UTF-8 cannot be used as native encoding).
>>
>> Dasher uses SendInput/KEYEVENTF_UNICODE to inject text into Rgui,
>> which is fine as far as I can tell and should work. It didn't work,
>> because the Unicode windows didn't handle WM_CHAR nor
>> WM_KEYDOWN/WM_KEYUP for VK_PACKET. By design, Unicode windows get
>> input via WM_IME_COMPOSITION and WM_KEYDOWN, so I've added support for
>> VK_PACKET to WM_KEYDOWN (taking the logic in gdk as an example).
>>
>> I am cc'ing Jose as Tinn-R has a similar problem, though this patch
>> doesn't solve it.
>>
>> Best
>> Tomas
>>
>>>
>>> Regards,
>>>
>>> Paulo Barata
>>>
>>> ----------------------------------------------------------
>>>
>>> On 13/05/2022 16:44, Paulo Barata wrote:
>>>> To the R developers,
>>>>
>>>> I would like to point out an issue that occurs with the new R 4.2.0
>>>> running on Windows; this is possibly related to the recent wide
>>>> changes made to the Windows port of R. The issue has to do with
>>>> writing of the R window.
>>>>
>>>> My computer runs on Windows 10 Professional 64-bit with all the
>>>> latest updates, and has a 4-core 8-thread Intel Xeon processor with
>>>> 32 Gb of RAM.
>>>>
>>>> I have some slight impairment in my hands, so for typing I avoid
>>>> using the computer keyboard as much as possible. For most of my
>>>> typing, I use the software Dasher, a kind of assistive technology
>>>> software. Dasher was created by the Inference Group led by Professor
>>>> David MacKay (died in 2016) at Cambridge University in England.
>>>> Later, Dasher was further developed by Ada Majorek (a Google
>>>> engineer, recently deceased).
>>>>
>>>> General information on Dasher and about the Dasher Project can be
>>>> found on the Inference Group page:
>>>>
>>>> http://www.inference.org.uk/dasher/
>>>>
>>>> An example of Dasher in action can be seen on this 2-minute YouTube
>>>> video:
>>>>
>>>> https://www.youtube.com/watch?v=nr3s4613DX8
>>>>
>>>> An one-hour YouTube video of a 2007 Google Talk by Professor MacKay
>>>> himself explaining the Dasher concept can be found here:
>>>>
>>>> https://www.youtube.com/watch?v=wpOxbesRNBc
>>>>
>>>> In the 2-minute video (the first YouTube address above), the
>>>> sentence written through Dasher, for actual use, needs to be copied
>>>> and then pasted into another software, say a text editor. But Dasher
>>>> also has a "Direct Entry" mode, where words typed are entered
>>>> directly on the screen of the text editor or other software -- this
>>>> is how I use Dasher to write on the R window.
>>>>
>>>> Using Dasher`s "Direct Entry" mode, for all effects, to write a word
>>>> through Dasher works exactly like writing the word through the
>>>> normal computer keyboard. Somehow (I do not know about system
>>>> programming), in "Direct Entry" mode, the output of Dasher is
>>>> understood by the computer as an input of the same nature as a
>>>> keyboard input.
>>>>
>>>> But this is the issue: until R 4.1.3, R accepted normally the
>>>> word-typing through Dasher. But R 4.2.0 (and R 4.2.0-patched build
>>>> r82348, 12 May 2022) does not accept Dasher anymore.
>>>>
>>>> So, for now, if I wish to use R during some extended interactive
>>>> section (say, for a first look at a complex data set), and if I wish
>>>> to use Dasher for this interactive session, then I have to use R
>>>> 4.1.3. For using R through programming, I can use the new R 4.2.0,
>>>> by writing the program with Dasher in my text editor, and then
>>>> pasting that program into R.
>>>>
>>>> The latest Windows version of Dasher, version 5.0.0 beta, works
>>>> perfectly well with text editors (I use EditPad Pro), with
>>>> Microsoft-like Office packages (I use SoftMaker Office), for writing
>>>> e-mails (I use Mozilla Thunderbird), for writing on a web page (I
>>>> use mostly Mozilla Firefox). It worked perfectly well with R up to
>>>> version 4.1.3, but it does not work with R 4.2.0
>>>>
>>>> The latest Dasher 5.0.0 beta Windows installer and the source code
>>>> can be found on this page below (please click on "Windows installer"
>>>> and on "source code", just below the head "Dasher 5.0 beta release"):
>>>>
>>>> https://github.com/dasher-project/dasher/releases
>>>>
>>>> To set Dasher 5.0.0 beta to the "Direct Entry" mode, after
>>>> installing Dasher one should go to Preferences > Application >
>>>> Application Style.
>>>>
>>>> Currently, after the passing of Ada Majorek, the Dasher Project is
>>>> being put forward by a group of people in England, but, it seems, at
>>>> a very slow pace. They have announced the existence of a version 6
>>>> beta, but this is only an online instance of Dasher, there is no
>>>> Windows installer, as far as I know. Their web page:
>>>>
>>>> https://dasher.acecentre.net/
>>>>
>>>> For me, and possibly for other users, the Dasher version 5.0.0 beta
>>>> for Windows that is available works perfectly well, and allows me to
>>>> use the computer with a proficiency that would be hardly possible
>>>> otherwise.
>>>>
>>>> Here I request that the R developers take a look at this word-typing
>>>> issue that happens with the new R 4.2.0 on Windows.
>>>>
>>>> As an R user (I work in ecological research), I can only thank the R
>>>> team for this really wonderful piece of statistical software that
>>>> you make freely available to us all.
>>>>
>>>> Regards,
>>>>
>>>> Paulo Barata
>>>>
>>>> (Rio de Janeiro - Brazil)
>>>>
>>>> ______________________________________________
>>>> R-devel using r-project.org mailing list
>>>> https://stat.ethz.ch/mailman/listinfo/r-devel
>>>
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>
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--
Dr. Benjamin Bolker
Professor, Mathematics & Statistics and Biology, McMaster University
Director, School of Computational Science and Engineering
(Acting) Graduate chair, Mathematics & Statistics
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