@Perlence @MrAru could you try this PR in VSCode.

Failed MacOS tests

However, I noted it's messing test on MacOS.

not ok 249 fish_prompt: use 2-lines prompt by default
  ---
    operator: =
    expected: 1
    actual: '       1'
    at: ~/work/pure/pure/tests/fish_prompt.test.fish:62
  ...
not ok 250 fish_prompt: use 1-line compact-prompt
  ---
    operator: =
    expected: 0
    actual: '       0'
    at: ~/work/pure/pure/tests/fish_prompt.test.fish:67

Checking Single Line feature

Could you also check in a normal terminal for any issue related to pure_enable_single_line_prompt when switching it true/false?

~
❯ set --universal pure_enable_single_line_prompt true
~ ❯ set --universal pure_enable_single_line_prompt false

~
❯ 

If the rendering is correct, I will fix the test. Otherwise, I will have to weight the time to debug (I don't have MacOS) versus the added value of the feature with shell integration enabled in vscode.

I can confirm that this fix works in VS Code.

I think the single-line prompt renders correctly. Here's Terminal.app:

And here's Alacritty 0.15.1:

@edouard-lopez Thanks for debugging and fixing this! ❤️