feat: add '%' key for vi (goto_matching_brace)

bundles/vi/base_map.moon

@@ -146,6 +146,9 @@ map = {
 
     '}': (editor) -> apply editor, (editor) ->
       editor.cursor\para_down!
+
+    '%': (editor) -> apply editor, (editor) ->
+      editor.cursor\goto_matching_brace!
    }
 
   on_unhandled: (event, source, translations) ->

lib/howl/commands/edit_commands.moon

@@ -199,9 +199,7 @@ command.register
   name: 'cursor-goto-brace'
   description: 'Go to the brace matching the current brace, if any'
   handler: ->
-    cursor = app.editor.cursor
-    pos = app.editor\get_matching_brace cursor.pos
-    cursor\move_to(:pos) if pos
+    app.editor.cursor\goto_matching_brace!
 
 command.register
   name: 'editor-replace-exec'

lib/howl/ui/cursor.moon

@@ -211,6 +211,10 @@ class Cursor extends PropertyObject
     else
       @cursor\end_of_file :extend
 
+  goto_matching_brace: () =>
+    pos = @container\get_matching_brace @pos
+    @move_to(:pos) if pos
+
   -- private
 
   @property _line: get: =>

site/source/doc/api/ui/cursor.md

@@ -240,5 +240,9 @@ selection, or extends the selection if already present.
 Moves the cursor one paragraph up. If `extend` is true, creates a new selection,
 or extends the selection if already present.
 
+### goto_matching_brace ()
+
+Moves the cursor to brace matching the current brace if any.
+
 [Editor]: editor.html
 [Selection]: selection.html

spec/ui/cursor_spec.moon

@@ -673,3 +673,11 @@ And hƏre's line twʘ
       assert.equal 'L', sel.text
       cursor.line = 2
       assert.equals 'Liñe 1 ʘf tƏxt\nA', sel.text
+
+  describe 'goto_matching_brace', ->
+    it 'moves to the matching brace', ->
+      editor.buffer.mode.auto_pairs = {'[': ']'}
+      editor.buffer.text = '[foo]'
+      cursor.pos = 1
+      cursor\goto_matching_brace!
+      assert.equal 5, cursor.pos