Fix regression in deleteCharBackward

FIX: Fix a regression that caused `deleteCharBackward` to sometimes delete a large chunk of text. See https://discuss.codemirror.net/t/backspace-on-some-multi-codepoint-glyphs-deletes-characters-separately/7403
codemirror · Nov 28, 2023 · 27970fd · 27970fd
1 parent de16f6b
commit 27970fd
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/commands.ts b/src/commands.ts
@@ -479,7 +479,7 @@ const deleteByChar = (target: CommandTarget, forward: boolean) => deleteBy(targe
     if (targetPos == pos && line.number != (forward ? state.doc.lines : 1))
       targetPos += forward ? 1 : -1
     else if (!forward && /[\ufe00-\ufe0f]/.test(line.text.slice(targetPos - line.from, pos - line.from)))
-      targetPos = findClusterBreak(line.text, targetPos - line.from, false, false)
+      targetPos = findClusterBreak(line.text, targetPos - line.from, false, false) + line.from
   }
   return targetPos
 })