Broken commandline

[Hans-Peter Sorge]

Hi,

I am on Fedora 34 now (apl SVN: 1198:1472M)

The apl font partially fails to work with keyboard layout apl.

The "over strike characters" ⌽⍉⍟⍝⍱⍲ ,when entered in a terminal, appear 
in half

The left half of the character is being displayed when entered.
The right half appears when space bar is being pressed.
Anny further character entered is being offset by one.

That is  ⌽[space]ABC  -> ends up as ⌽BC where space bar "overlays" 
character A!
The Apl-Session, terminal, emacs, vi are affected too. slikedid, Firefox 
are OK.


If changing the layout via *setxkbmap -layout "apl"* I get  instead 
of ⌽⍉⍟⍝.
The � are being displayed the same way as described above: Left half 
character, [SPACEBAR] right half of the character.


I installed apl from the repository to verify the behavior - that segfaults.

The font-manager shows
⍝  APL FUNCTIONAL SYMBOL UP SHOE JOT   U+235D
So there is nothing special about this and 'normal' UTF-8 characters.

The terminal font is set to *latarcyrheb-sun16* in */etc/voconsole.conf.*

Changing the terminal font to either Unifont-APL8x16-12.1.02 or 
NotoSansMono did not help.


Emacs:
After some 'fiddling around' font changes with emacs *M-x menu-set-font* 
will display ⍝ in one go,
Char ⍝ will be displayed for different fonts - even if the font-manager 
does not show it.
Char ⍝ with font NotoSansMono selected will be displayed in one shot but 
with additional spacing to the left and right.

Char ⍝ with Unifont selected will be displayed w/o spacing.
( The console fonts and the content of *menu-set-font* are different...)

Hopefully some one has an idea where / how to dig deeper into the problem.

Best Regards
Hans-Peter



Is there / some where an experiment going on to 'improve' character 
composition?

Re: Broken commandline

[Elias Mårtenson]

When using Emacs with GNU APL, you should use gnu-apl-mode. You can
download it from MELPA and you start it using M-x gnu-apl.

https://github.com/lokedhs/gnu-apl-mode

This should hopefully fix your problems.

Regards,
Elias

On Wed, 2 Jun 2021 at 17:23, Hans-Peter Sorge 
wrote:

> Hi,
>
> I am on Fedora 34 now (apl SVN: 1198:1472M)
>
> The apl font partially fails to work with keyboard layout apl.
>
> The "over strike characters" ⌽⍉⍟⍝⍱⍲ ,when entered in a terminal, appear in
> half
> The left half of the character is being displayed when entered.
> The right half appears when space bar is being pressed.
> Anny further character entered is being offset by one.
>
> That is  ⌽[space]ABC  -> ends up as ⌽BC where space bar "overlays"
> character A!
> The Apl-Session, terminal, emacs, vi are affected too. slikedid, Firefox
> are OK.
>
> If changing the layout via *setxkbmap -layout "apl"* I get  instead
> of ⌽⍉⍟⍝.
> The � are being displayed the same way as described above: Left half
> character, [SPACEBAR] right half of the character.
>
> I installed apl from the repository to verify the behavior - that
> segfaults.
>
> The font-manager shows
> ⍝  APL FUNCTIONAL SYMBOL UP SHOE JOT   U+235D
> So there is nothing special about this and 'normal' UTF-8 characters.
>
> The terminal font is set to *latarcyrheb-sun16* in */etc/voconsole.conf.*
>
> Changing the terminal font to either Unifont-APL8x16-12.1.02 or
> NotoSansMono did not help.
>
> Emacs:
> After some 'fiddling around' font changes with emacs *M-x menu-set-font*
> will display ⍝ in one go,
> Char ⍝ will be displayed for different fonts - even if the font-manager
> does not show it.
> Char ⍝ with font NotoSansMono selected will be displayed in one shot but
> with additional spacing to the left and right.
> Char ⍝ with Unifont selected will be displayed w/o spacing.
> ( The console fonts and the content of *menu-set-font* are different...)
>
> Hopefully some one has an idea where / how to dig deeper into the problem.
>
> Best Regards
> Hans-Peter
>
>
>
> Is there / some where an experiment going on to 'improve' character
> composition?
>
>
>
>

Re: Broken commandline

[Hans-Peter Sorge]

Hello Elias,

that's OK.

I just tried different font setting in Emacs (hoping for some blinking 
light bulb:).


*M-x gnu-apl-mode* does not switch the keyboard. I still need to change 
it via the tray keyboard layout selection.
btw. after the last system update the ⍝-entry (and others) in emacs 
works fine.


The round trip: emacs copy / cmd line paste / cmd line copy / emacs 
paste is consistent.

The cmd line characters have "half space, char, half space".

in apl session try:

  ⎕AV[168 171 182 229 230 231 232 233 234 238 251]
⍚⍜⍟⍝⍲⍴⍱⌽⊖⍉⍫
  11 ⍴ '|'
|||

The composed characters take more space. line editing is garbled if the 
characters are included.



Best Regards
Hans-Peter





Am 02.06.21 um 13:25 schrieb Elias Mårtenson:
When using Emacs with GNU APL, you should use gnu-apl-mode. You can 
download it from MELPA and you start it using M-x gnu-apl.


https://github.com/lokedhs/gnu-apl-mode 



This should hopefully fix your problems.

Regards,
Elias

On Wed, 2 Jun 2021 at 17:23, Hans-Peter Sorge 
mailto:hanspeterso...@netscape.net>> wrote:


Hi,

I am on Fedora 34 now (apl SVN: 1198:1472M)

The apl font partially fails to work with keyboard layout apl.

The "over strike characters" ⌽⍉⍟⍝⍱⍲ ,when entered in a terminal,
appear in half
The left half of the character is being displayed when entered.
The right half appears when space bar is being pressed.
Anny further character entered is being offset by one.

That is  ⌽[space]ABC  -> ends up as ⌽BC where space bar "overlays"
character A!
The Apl-Session, terminal, emacs, vi are affected too. slikedid,
Firefox are OK.

If changing the layout via *setxkbmap -layout "apl"* I get 
instead of ⌽⍉⍟⍝.
The � are being displayed the same way as described above: Left
half character, [SPACEBAR] right half of the character.

I installed apl from the repository to verify the behavior - that
segfaults.

The font-manager shows
⍝  APL FUNCTIONAL SYMBOL UP SHOE JOT   U+235D
So there is nothing special about this and 'normal' UTF-8 characters.

The terminal font is set to *latarcyrheb-sun16* in
*/etc/voconsole.conf.*

Changing the terminal font to either Unifont-APL8x16-12.1.02 or
NotoSansMono did not help.

Emacs:
After some 'fiddling around' font changes with emacs *M-x
menu-set-font* will display ⍝ in one go,
Char ⍝ will be displayed for different fonts - even if the
font-manager does not show it.
Char ⍝ with font NotoSansMono selected will be displayed in one
shot but with additional spacing to the left and right.
Char ⍝ with Unifont selected will be displayed w/o spacing.
( The console fonts and the content of *menu-set-font* are
different...)

Hopefully some one has an idea where / how to dig deeper into the
problem.

Best Regards
Hans-Peter



Is there / some where an experiment going on to 'improve'
character composition?