Description

Keyboard-based text selection does not work as expected in Windows. This seems to affect all terminals/shells.

• When using Shift+Left/Right arrows, only two characters can ever be selected; the two-character selection moves with the cursor thereafter
• When using Shift+Up/Down arrows, only one line can ever be selected; the selection moves with the cursor thereafter
• Regardless of selection method, pressing Backspace or Delete will only ever delete the single character immediately before/after the cursor

Unaffected:

• Mouse selection works as expected
• Copying a selected range (with right-click or Ctrl+C) works as expected

I have tried...

• Windows Terminal (my daily driver)
• cmd.exe directly
• Windows PowerShell directly
• VS Code integrated terminal

All exhibit the same behavior.

This likely has something to do with the fact that Windows shells implement this behavior natively, but that's pure speculation.

I used the following "action" config in Windows Terminal to get Shift+Enter to work for soft newlines:

{
  "command": {
    "action": "sendInput",
    "input": "\u001b[13;2u"
  },
  "id": "User.sendInput.ShiftEnterCustom"
}

Is there anything similar I could try to get the Shift+Arrow, Backspace or Delete keys to work?

Plugins

No response

OpenCode version

1.2.18

Steps to reproduce

1. Type a line of text (e.g., Lorem ipsum dolor sit amet)
2. Pres Shift+LeftArrow four times to select "amet"

• Expected: "amet" is selected, with cursor blinking on the 'a'
• Actual: "am" is selected, with cursor blinking on 'a'

1. Type a line of text (e.g., Lorem ipsum dolor sit amet)
2. Press Shift+Home to select the whole line (this works!)
3. Press Delete

• Expected: The entire line of text is removed
• Actual: The 'L' is removed, leaving "orem ipsum dolor sit amet", unselected, cursor blinking on 'o'

1. Type a line of text (e.g., Lorem ipsum dolor sit amet)
2. Press Home to move the cursor to the start of the line
3. Press Shift+End to select the entire line (this works!)
4. Press Backspace

• Expected: The entire line of text is removed
• Actual: The 't' at the end of "amet" is removed, leaving "Lorem ipsum dolor sit ame", unselected, cursor blinking at the end of the line

Screenshot and/or share link

No response

Operating System

Windows 11

Terminal

Windows Terminal