feat: add findChildrenInRange helper

packages/core/src/helpers/findChildren.ts

@@ -1,10 +1,5 @@
 import { Node as ProseMirrorNode } from 'prosemirror-model'
-import { Predicate } from '../types'
-
-type NodeWithPos = {
-  node: ProseMirrorNode,
-  pos: number,
-}
+import { Predicate, NodeWithPos } from '../types'
 
 export default function findChildren(node: ProseMirrorNode, predicate: Predicate): NodeWithPos[] {
   const nodesWithPos: NodeWithPos[] = []

packages/core/src/helpers/findChildrenInRange.ts

@@ -0,0 +1,20 @@
+import { Node as ProseMirrorNode } from 'prosemirror-model'
+import { Predicate, Range, NodeWithPos } from '../types'
+
+/**
+ * Same as `findChildren` but searches only within a `range`.
+ */
+export default function findChildrenInRange(node: ProseMirrorNode, range: Range, predicate: Predicate): NodeWithPos[] {
+  const nodesWithPos: NodeWithPos[] = []
+
+  node.nodesBetween(range.from, range.to, (child, pos) => {
+    if (predicate(child)) {
+      nodesWithPos.push({
+        node: child,
+        pos,
+      })
+    }
+  })
+
+  return nodesWithPos
+}