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
+}

packages/core/src/index.ts

@@ -15,6 +15,7 @@ export { default as mergeAttributes } from './utilities/mergeAttributes'
 export { default as coordsAtPos } from './helpers/coordsAtPos'
 export { default as getExtensionField } from './helpers/getExtensionField'
 export { default as findChildren } from './helpers/findChildren'
+export { default as findChildrenInRange } from './helpers/findChildrenInRange'
 export { default as findParentNode } from './helpers/findParentNode'
 export { default as findParentNodeClosestToPos } from './helpers/findParentNodeClosestToPos'
 export { default as generateHTML } from './helpers/generateHTML'

packages/core/src/types.ts

@@ -194,3 +194,8 @@ export type MarkRange = {
 }
 
 export type Predicate = (node: ProseMirrorNode) => boolean
+
+export type NodeWithPos = {
+  node: ProseMirrorNode,
+  pos: number,
+}