Add unbind-default-keys config option

ref: https://github.com/helix-editor/helix/issues/2720
ref: https://github.com/helix-editor/helix/pull/2733

1 files changed, 5 insertions, 2 deletions

diff --git a/helix-term/src/keymap.rs b/helix-term/src/keymap.rs
index 975274ed..995e3c41 100644
--- a/helix-term/src/keymap.rs
+++ b/helix-term/src/keymap.rs
@@ -318,7 +318,10 @@ impl Keymaps {
     pub fn get(&mut self, mode: Mode, key: KeyEvent) -> KeymapResult {
         // TODO: remove the sticky part and look up manually
         let keymaps = &*self.map();
-        let keymap = &keymaps[&mode];
+        let keymap = match keymaps.get(&mode) {
+            Some(keymap) => keymap,
+            None => return KeymapResult::NotFound,
+        };
 
         if key!(Esc) == key {
             if !self.state.is_empty() {
@@ -373,7 +376,7 @@ impl Default for Keymaps {
     }
 }
 
-/// Merge default config keys with user overwritten keys for custom user config.
+/// Merge existing config keys with user overwritten keys.
 pub fn merge_keys(dst: &mut HashMap<Mode, KeyTrie>, mut delta: HashMap<Mode, KeyTrie>) {
     for (mode, keys) in dst {
         keys.merge_nodes(