How can I map Romanian Source grave_accent_and_tilde to an actual GRAVE ACCENT / TILDE?

[cristiean-travelex]

In MacOS Keyboard Settings, I use two sources: British, and Romanian - Standard.

I have a Simple Modification in Karabiner that maps non_us_backslash to grave_accent_and_tilde. This works well when the British Source is selected.

However, when the Romanian- Standard source is selected, I get \\||, when pressing the same key. I believe this is because MacOS interprets grave_accent_and_tilde as that specific backslash/bar character.

The following key presses:
[
  {
    "type": "down",
    "name": {"key_code":"grave_accent_and_tilde"},
    "usagePage": "7 (0x0007)",
    "usage": "53 (0x0035)",
    "misc": ""
  },
  {
    "type": "up",
    "name": {"key_code":"grave_accent_and_tilde"},
    "usagePage": "7 (0x0007)",
    "usage": "53 (0x0035)",
    "misc": ""
  },
  {
    "type": "down",
    "name": {"key_code":"right_shift"},
    "usagePage": "7 (0x0007)",
    "usage": "229 (0x00e5)",
    "misc": "flags right_shift"
  },
  {
    "type": "down",
    "name": {"key_code":"grave_accent_and_tilde"},
    "usagePage": "7 (0x0007)",
    "usage": "53 (0x0035)",
    "misc": "flags right_shift"
  },
  {
    "type": "up",
    "name": {"key_code":"grave_accent_and_tilde"},
    "usagePage": "7 (0x0007)",
    "usage": "53 (0x0035)",
    "misc": "flags right_shift"
  },
  {
    "type": "up",
    "name": {"key_code":"right_shift"},
    "usagePage": "7 (0x0007)",
    "usage": "229 (0x00e5)",
    "misc": ""
  }
]

Output the following string:
\\||

Desired string:
``~~

---

How can I map the grave_accent_and_tilde key to actually output a grave accent or a tilde while the Romanian - Standard source is selected as well?

[gforien]

You'd have to write a complex modification in JSON for this

Complex modifications allow to define conditions, like in your example

• map non_us_backslash to grave_accent_and_tilde if language is en
• map backslash to grave_accent_and_tilde if language is ro

This can be done with the input_source_if condition operator

If you're new to complex modifications you may find useful the collection of predefined rules (https://ke-complex-modifications.pqrs.org/) or this generator (https://genesy.github.io/karabiner-complex-rules-generator/)