From b9fce1504276215bd9b280b69ab1214f6d341162 Mon Sep 17 00:00:00 2001
From: "Jade (Rose) Rowland" <jaderowlanddev@gmail.com>
Date: Wed, 3 Dec 2025 15:18:32 -0500
Subject: [PATCH] working

---
 packages/codemirror/codemirror.mjs |  9 +++++++++
 packages/codemirror/labelJump.mjs  | 31 ++++++++++++++++++++++++++++++
 2 files changed, 40 insertions(+)
 create mode 100644 packages/codemirror/labelJump.mjs

diff --git a/packages/codemirror/codemirror.mjs b/packages/codemirror/codemirror.mjs
index 69fce4b50..6643e400d 100644
--- a/packages/codemirror/codemirror.mjs
+++ b/packages/codemirror/codemirror.mjs
@@ -24,6 +24,7 @@ import { sliderPlugin, updateSliderWidgets } from './slider.mjs';
 import { activateTheme, initTheme, theme } from './themes.mjs';
 import { isTooltipEnabled } from './tooltip.mjs';
 import { updateWidgets, widgetPlugin } from './widget.mjs';
+import { jumpToCharacter } from './labelJump.mjs';
 
 export { toggleBlockComment, toggleBlockCommentByLine, toggleComment, toggleLineComment } from '@codemirror/commands';
 
@@ -119,6 +120,14 @@ export function initEditor({ initialCode = '', onChange, onEvaluate, onStop, roo
             preventDefault: true,
             run: () => onStop?.(),
           },
+          {
+            key: 'Alt-]',
+            run: (view) => jumpToCharacter(view, '$', 1),
+          },
+          {
+            key: 'Alt-[',
+            run: (view) => jumpToCharacter(view, '$', -1),
+          },
           /* {
             key: 'Ctrl-Shift-.',
             run: () => (onPanic ? onPanic() : onStop?.()),
diff --git a/packages/codemirror/labelJump.mjs b/packages/codemirror/labelJump.mjs
new file mode 100644
index 000000000..fcdb437f5
--- /dev/null
+++ b/packages/codemirror/labelJump.mjs
@@ -0,0 +1,31 @@
+import { EditorSelection } from '@codemirror/state';
+import { SearchCursor } from '@codemirror/search';
+
+export function jumpToCharacter(view, character, direction = 1) {
+  const { state, dispatch } = view;
+  const pos = state.selection.main.head;
+  const cursor = new SearchCursor(state.doc, character);
+
+  let characterPositions = [];
+  let jumpPos;
+  while (!cursor.next().done) {
+    characterPositions.push(cursor.value.to);
+  }
+  if (!characterPositions.length) {
+    return false;
+  }
+  if (direction > 0) {
+    jumpPos = characterPositions.find((x) => x > pos + 1) ?? characterPositions.at(0); // Loop back around for convenience
+  } else {
+    jumpPos = characterPositions.reverse().find((x) => x < pos + 1) ?? characterPositions.at(0);
+  }
+
+  if (!jumpPos) {
+    return false;
+  }
+  dispatch({
+    selection: EditorSelection.cursor(jumpPos - 1),
+    scrollIntoView: true,
+  });
+  return true;
+}