Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Support Ctrl-W and Ctrl-U shortcuts in fsi #10370

Merged
merged 1 commit into from
Nov 1, 2020
Merged

Support Ctrl-W and Ctrl-U shortcuts in fsi #10370

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
27 changes: 27 additions & 0 deletions src/fsharp/fsi/console.fs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -336,6 +336,27 @@ type internal ReadLineConsole() =
if (input.Length > 0 && current < input.Length) then
input.Remove(current, 1) |> ignore
render()

let deleteFromStartOfLineToCursor() =
if (input.Length > 0 && current > 0) then
input.Remove (0, current) |> ignore
current <- 0
render()

let deleteWordLeadingToCursor() =
if (input.Length > 0 && current > 0) then
let line = input.ToString()
let rec prevWord (idx, isInWord) =
if idx < 0 then 0 else
match line.Chars(idx), isInWord with
| ' ', true -> idx + 1
| ' ', false -> prevWord (idx - 1, false)
| _, _ -> prevWord (idx - 1, true)

let idx = prevWord (current - 1, false)
input.Remove(idx, current - idx) |> ignore
current <- idx
render()

let deleteToEndOfLine() =
if (current < input.Length) then
Expand Down Expand Up @@ -452,6 +473,12 @@ type internal ReadLineConsole() =
| (ConsoleModifiers.Control, ConsoleKey.L) ->
clear()
change()
| (ConsoleModifiers.Control, ConsoleKey.U) ->
deleteFromStartOfLineToCursor()
change()
| (ConsoleModifiers.Control, ConsoleKey.W) ->
deleteWordLeadingToCursor()
change()
| _ ->
// Note: If KeyChar=0, the not a proper char, e.g. it could be part of a multi key-press character,
// e.g. e-acute is ' and e with the French (Belgium) IME and US Intl KB.
Expand Down