Script Editor: Add RTL (Right to Left) support

[DexterFstone]

Describe the project you are working on

addon

Describe the problem or limitation you are having in your project

if I want to use RTL language for a comment, or document, the text direction is wrong

Describe the feature / enhancement and how it helps to overcome the problem or limitation

This can be done in 2 ways: auto detect language and change text direction to RTL or LTR shortcut: something like MWord (ctrl + shift)

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

shortcut: pressing the right ctrl + shift on the keyboard makes the direction of that line change to Right pressing the left ctrl + shift on the keyboard makes the direction of that line change to Left

If this enhancement will not be used often, can it be worked around with a few lines of script?

No

Is there a reason why this should be core and not an add-on in the asset library?

I think it would be difficult and illogical to implement such a thing with a plugin

[bruvzg]

Please provide an example of incorrectly displayed text. Both RTL and mixed direction comments seems to work correctly (in 4.x, 3.x do not have any RTL/BiDi support).

[DexterFstone]

Please provide an example of incorrectly displayed text. Both RTL and mixed direction comments seems to work correctly (in 4.x, 3.x do not have any RTL/BiDi support).

expected:

[bruvzg]

I see, the main text looks fine, the rest is non-trivial to fix:

• Script editor have base direction set to LTR (it's a reasonable assumption since script itself is always RTL, and if it was not using RTL variable name might result in a mess), that's what causing ## to be incorrectly placed.
• Script editor (and TextEdit it's based on) do not support alignment at all (so it can't be right aligned).

Ideally, we should have a structured text protocol for the script editor that is fully parsing script and using separate BiDi contexts for each script token (or at least for comments), but processing multiline comments still will be an issue.

[DexterFstone]

one more thing I tried is TextFile when using TextFile the text ordering is wrong I need to add the # to keep text ordering right