Ctrl-C and other Alt- and Ctrl- keys are ignored or wrongly interpreted

[jrydval]

Issue Type: Bug

The PowerShell Integrated Console ignores some keypresses (like "Crtl-C") and some others (like "Atl-Arrows" and "Cmd-Arrows") are wrongly interpreted and show some letters instead of doing a cursor movements on MacOS.

How to reproduce:

Type a text into PowerShell Integrated Console on MacOS and press Crtl-C. Nothing happens. Expected is termination of the input and jump to a prompt on a new line.

Type a text into PowerShell Integrated Console on MacOS and press Alt-[<-]. "b" is displayed. Expected behaviour: Move cursor to a word on the left.

Extension version: 2020.1.0
VS Code version: Code 1.41.1 (26076a4de974ead31f97692a0d32f90d735645c0, 2019-12-18T14:57:51.166Z)
OS version: Darwin x64 17.7.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz (4 x 2500)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled metal: disabled_off multiple_raster_threads: enabled_on oop_rasterization: unavailable_off protected_video_decode: unavailable_off rasterization: unavailable_off skia_renderer: disabled_off surface_control: disabled_off surface_synchronization: enabled_on video_decode: enabled viz_display_compositor: enabled_on viz_hit_test_surface_layer: disabled_off webgl: enabled webgl2: enabled
Load (avg)	2, 3, 4
Memory (System)	16.00GB (4.61GB free)
Process Argv
Screen Reader	no
VM	0%

[rjmholt]

It sounds like you're using the legacy readline, which is currently what's used in the stable extension.

The behaviours you're after come from a PowerShell module called PSReadLine, which will be brought into stable when PowerShell 7 is released next month. You'll need to use PowerShell 7 with it, since PowerShell 6 has a bug in it that compromises the PSReadLine experience. If you'd like to try this out now, you can install PowerShell 7.0.0-rc.2 and the powershell-preview extension (uninstalling the powershell extension at the same time).

I'll deduplicate this to #535. Please let me know if this doesn't sound accurate and we can reopen.

[TylerLeonhardt]

Theres's more to this. Maybe @Tyriar knows how to help... the default behavior on macOS when you hold Alt and hit any other key is to display special characters (button mash: ∆©˚¥©∆˙©ƒ¥†ƒåß∂ƒøˆ∆π´øˆ∑ƒøˆœ∑´πƒ¨˜ø). I had to disable this in iTerm2... the same thing probably has to happen in VS Code but I'm not sure how off the top of my head. actually I think I'm wrong.

[ghost]

This issue has been marked as duplicate and has not had any activity for 1 day. It has been closed for housekeeping purposes.

[jrydval]

Thank you.

The PowerShell-Preview extension works fine!