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Set-PSReadlineKeyHandler fails with certain key chords on Unix #3584
Description
Steps to reproduce
Define Control and Alt-key-based chords for doubling characters ', ", and ( when typed with Control or Alt held down:
Set-PSReadlineKeyHandler -Chord "Ctrl+'" { [Microsoft.PowerShell.PSConsoleReadLine]::Insert("''") }
Set-PSReadlineKeyHandler -Chord 'Ctrl+"' { [Microsoft.PowerShell.PSConsoleReadLine]::Insert('""') }
Set-PSReadlineKeyHandler -Chord 'Ctrl+(' { [Microsoft.PowerShell.PSConsoleReadLine]::Insert('()') }
Set-PSReadlineKeyHandler -Chord "Alt+'" { [Microsoft.PowerShell.PSConsoleReadLine]::Insert("''") }
Set-PSReadlineKeyHandler -Chord 'Alt+"' { [Microsoft.PowerShell.PSConsoleReadLine]::Insert('""') }
Set-PSReadlineKeyHandler -Chord 'Alt+(' { [Microsoft.PowerShell.PSConsoleReadLine]::Insert('()') }Expected behavior
The definitions should be accepted on all platforms and function as defined.
E.g. Ctrl+' should result in ''.
Actual behavior
On Windows, the actual behavior matches the expected behavior.
On Unix platforms (verified on macOS 10.12.4 and Ubuntu 16.04 with the respective default terminal applications), the definitions fail with (repetitions of) the following error messages (note that omitting modifier keys ctrl and alt from the definitions would work fine):
Set-PSReadlineKeyHandler : Unrecognized key 'ctrl'. Please use a character literal or a well-known key name from the System.ConsoleKey enumeration.
Set-PSReadlineKeyHandler : Unrecognized key 'alt'. Please use a character literal or a well-known key name from the System.ConsoleKey enumeration.
The error messages suggest that ctrl / alt are not recognized as modifier keys in this case.
Note that something like Ctrl+A does work, however; the problem appears to be the specific characters (', ", () that the modifiers are paired with.
Environment data
PowerShell Core v6.0.0-alpha (v6.0.0-alpha.18) on Microsoft Windows 10 Pro (64-bit; v10.0.14393)
PowerShell Core v6.0.0-alpha (v6.0.0-alpha.18) on Darwin Kernel Version 16.5.0: Fri Mar 3 16:52:33 PST 2017; root:xnu-3789.51.2~3/RELEASE_X86_64
PowerShell Core v6.0.0-alpha (v6.0.0-alpha.18) on Darwin Kernel Version 16.5.0: Fri Mar 3 16:52:33 PST 2017; root:xnu-3789.51.2~3/RELEASE_X86_64
Activity
joeyaiello commentedon Apr 17, 2017
This issue was moved to PowerShell/PSReadLine#529
joeyaiello commentedon Apr 17, 2017
Tracking this in the PSReadline project.
axbender commentedon Jan 20, 2018
Using PowerShell 6.0 and PSReadline 2.0, the following binding fails for me in Windows 7:
Set-PSReadlineKeyHandler -Chord "Ctrl+." ...
This might be a problem with PowerShell 6.0 as the AltGr key mappings for the German keyboard don't work, e.g. AltGr+8 wouldn't result in "["...
Being new to PS6, is this expected/worked on?
Btw., is there a way to specifiy e.g. [ConsoleKey]::OemPeriod in the chord?, and, what is the -Key parameter which is not described but "exampled" in the help page?