On Wed, Nov 28, 2018 at 10:23 PM Bahman Eslami <[email protected]> wrote:
> In a case a user doesn't want to have arabic nor faris in the vim, they can
> build the vim with the 'normal' feature flag but they would miss other
> features like langmap, but if they want to build it with langmap feature,
> they need the 'huge' feature flag which also includes the arabic. There is
> also no flag to disable nor enable arabic while building the vim. So the only
> way to disable them is to change the source which is how I do it. Now I give
> you an example what goes wrong with the arabic enabled.
> I use the native terminal app in OSX which supports bidi text perfectly even
> when it comes to selecting text.
What is the $TERM setting when you run Console Vim (not gvim) in that
terminal? Depending on its value, there are variant ways to tell Vim
that the terminal has full-bidi capabilities:
* Possibility 1: $TERM is 'mlterm'
o Do nothing. Vim knows that mlterm is a full-bidi terminal.
* Possibility 2: $TERM is another unambiguously recognisable name,
let's say (for the sake of argument) 'system-bidi'.
o Add near the top of yout vimrc the following snippet:
if &term == 'system-bidi' && has('arabic')
set termbidi
endif
* Possibility 3: $TERM is not unambiguously recognizable, let's say it
is 'xterm' which too many fake-xterm terminals use nowadays:
o Start Vim (when running in that terminal) as:
vim --cmd 'silent! set termbidi'
If your shell supports aliases, you can define the following
alias (as I would do it for bash, which is an alias-supporting shell)
alias vim='/usr/local/bin/vim --cmd "silent! set termbidi"'
Replace /usr/local/bin/vim by the path to your Vim executable
if it is something else, of course.
> So if you take the below text sampe which contains bidi text and put it in
> the vim you can see that the result is correct only when the arabic is
> disabled. I can't say for other terminals or environments if it works
> correctly but any user can compare the rendering from their web browser which
> supports bidi text as you can see in the following line:
>
> English text متن فارسی another text
>
> So if the vim rendering of the top text example matches the rendering of your
> browser, then it's correct. I've also attached two sample images which one
> uses the vim with arabic enabled and one with arabic disabled and you can see
> the incorrect rendering of text using the arabic enabled. Even selecting the
> text is wrong with arabic enabled. I can also confirm that macvim also shows
> incorrect result with arabic enabled even though it's using a gui font.
>
> Best,
> Bahman
Best regards,
Tony.
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