[developers] [Emb-students] unicode in lui window titles

Joshua Crowgey jcrowgey at uw.edu
Tue Feb 20 07:25:57 CET 2018

Thanks, everyone, for all the ideas and testing!

I can confirm that for me, on i3, Woodley's test cleaned up the tofu.  I
suppose that i3 *is* paying attention to _NET_WM_NAME.

I'm guessing that the reason that Francis has nice titles in Gnome but I
don't is that we're using different window managers under the hood.  I
don't know what Gnome's default WM is on Debian (stable).  On my login
screen I have a choice of Gnome on Wayland vs Gnome.  When I was testing
earlier, I chose the 'plain' Gnome.


On 02/19/2018 08:19 PM, Woodley Packard wrote:
> I tried John’s idea of setting _NET_WM_NAME and it had no effect at my end (i.e. my WM, notion, still rendered gremlins instead of unicode).  However, maybe it would work with i3wm?  If someone wants to try it, load up a lui window with a bad name, then run something like this in a terminal:
> xprop -format _NET_WM_NAME 8u -set _NET_WM_NAME "οὗτος ἦν ἐν ἀρχῇ"
> ... and then click on the window with the bad name.  If your WM pays attention to _NET_WM_NAME, this will change the name of the window.  If it changes it to different gremlins, it didn’t help.  If it changes it to nicely displayed unicode, it helped.  Let me know if it helps, and I can put in a patch to make yzlui do that.  As I said, it didn’t help for me.
> Regards,
> -Woodley
>> On Feb 19, 2018, at 6:40 PM, Tuấn Anh Lê <tuananh.ke at gmail.com> wrote:
>> I'm using i3wm as well and this bug happens to me too.
>> <screenshot_20180220_103210.png>
>> On 20 February 2018 at 08:26, Francis Bond <bond at ieee.org <mailto:bond at ieee.org>> wrote:
>> I can show Japanese in the title bar fine with gnome under Ubuntu (and Chinese).
>> On Tue, Feb 20, 2018 at 6:34 AM, Joshua Crowgey <jcrowgey at uw.edu <mailto:jcrowgey at uw.edu>> wrote:
>>> Hi Woodley!
>>> Thanks for looking into this.  I'm using i3 (<http://i3wm.org <http://i3wm.org/>>).  But I
>>> also have Gnome installed on this laptop, so I just switched over to
>>> gnome I can reproduce.  I attach two more screenshots using Gnome.
>>> --
>>> Joshua
>>> On 02/19/2018 02:22 PM, Woodley Packard wrote:
>>>> Hi again,
>>>> I can report that when using the Unity window manager, the problem goes
>>>> away for me -- i.e. with that WM, yzlui window titles show unicode
>>>> correctly.  The WM I usually use is a bit less feature-packed.  I would
>>>> be curious to hear whether others have encountered this issue.  What WM
>>>> are you using, Joshua?
>>>> Best,
>>>> Woodley
>>>> On 02/19/2018 02:19 PM, Woodley Packard wrote:
>>>>> Hi Joshua and Stephan,
>>>>> The log file you produced shows that the LKB is indeed producing
>>>>> commands that could be expected to result in legible window titles.  I
>>>>> can reproduce the problem at my end, both using the commands from the
>>>>> log you sent and using Greek examples.  I'm not sure what's going on
>>>>> though.  The code that sets the window title uses what I believe is
>>>>> the appropriate UTF8-enabled mechanism. Furthermore, querying the
>>>>> window's properties with "xprop" reveals that the name is indeed
>>>>> loaded into the X server correctly, including the locale, e.g.:
>>>>> $ xprop # and then click on the LUI window in question
>>>>>         window state: Normal
>>>>>         icon window: 0x7eef60
>>>>> WM_CLIENT_MACHINE(STRING) = "epsilon"
>>>>> WM_ICON_NAME(COMPOUND_TEXT) = "`ʔu-hədʔiw̓-t čəxʷ ʔu ti sqʷəbayʔ'
>>>>> Simple MRS Display"
>>>>> WM_NAME(COMPOUND_TEXT) = "`ʔu-hədʔiw̓-t čəxʷ ʔu ti sqʷəbayʔ' Simple MRS
>>>>> Display"
>>>>> _MOTIF_WM_HINTS(_MOTIF_WM_HINTS) = 0x2, 0x0, 0x1, 0x0, 0x0
>>>>> I suppose it could be a question of the font the window manager is
>>>>> using?  I'm not sure where to go next.  I think I will try with some
>>>>> other window mangers and see if it makes a difference.
>>>>> Best,
>>>>> Woodley
>>>>> On 02/19/2018 01:20 PM, Joshua Crowgey wrote:
>>>>>> Thanks for the prompt reply.  I found the debug log file where you said
>>>>>> it would be.  It's attached.
>>>>>> On 02/19/2018 01:15 PM, Stephan Oepen wrote:
>>>>>>> hi joshua,
>>>>>>> not sure the expert is at their desk already, but i doubt this problem
>>>>>>> originates on the lisp side.  i rather suspect that the routines to
>>>>>>> set the window title in LUI may predate its update to full unicode
>>>>>>> support (using the pango library).
>>>>>>> to aid debugging, there should be a file ‘yzlui.debug.jcrowgey’ (or
>>>>>>> the like), probably in your ‘/tmp/’ directory.  could you email that
>>>>>>> file
>>>>>>> it should contain the full commands sent from the LKB to LUI and
>>>>>>> should be encoded in UTF-8.  the string transmitted as the window
>>>>>>> title occurs towards the end of the ‘tree’ command, for example.
>>>>>>> best, oe
>>>>>>> On Mon, Feb 19, 2018 at 10:05 PM, Joshua Crowgey <jcrowgey at uw.edu <mailto:jcrowgey at uw.edu>>
>>>>>>> wrote:
>>>>>>>> Hello developers,
>>>>>>>> I find that when I look at a parse result using LUI and LKB, the
>>>>>>>> characters used in the tree display and in the semantics (in a Simple
>>>>>>>> MRS display) look great, but the window-title leaves a bit to be
>>>>>>>> desired.
>>>>>>>> Of course, it's not a very big deal since the important part is the
>>>>>>>> content of the window, not its title, but if there's some easy fix
>>>>>>>> that
>>>>>>>> you all may know of, I would be happy to hear about it.
>>>>>>>> I attach three screenshots as an example.  In one, I'm showing the the
>>>>>>>> top of a terminal emulator which has a pwd that's a Lushootseed
>>>>>>>> sentence.  This is just to show that generally, the window titles
>>>>>>>> on my
>>>>>>>> system look fine even with Unicode (I'm using i3wm on debian --- I
>>>>>>>> don't
>>>>>>>> know if that's relevant).  Then, the other two show a parse
>>>>>>>> result.  You
>>>>>>>> can see that the text in the tree nodes and in the semantic
>>>>>>>> relations is
>>>>>>>> fine, but the window title has a lot of tofu.
>>>>>>>> I'm not skilled enough with LISP to fix this myself in any reasonable
>>>>>>>> amount of time, so I thought I'd ask the experts.
>>>>>>>> Tyty!
>>>>>>>> --
>>>>>>>> Joshua Crowgey
>>>>> _______________________________________________
>>>>> Emb-students mailing list
>>>>> Emb-students at u.washington.edu <mailto:Emb-students at u.washington.edu>
>>>>> http://mailman11.u.washington.edu/mailman/listinfo/emb-students <http://mailman11.u.washington.edu/mailman/listinfo/emb-students>
>> --
>> Francis Bond <http://www3.ntu.edu.sg/home/fcbond/ <http://www3.ntu.edu.sg/home/fcbond/>>
>> Division of Linguistics and Multilingual Studies
>> Nanyang Technological University
>> -- 
>> Yours,
>> -- 
>> Tuan Anh Le

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