split helpers and utilities

packages/core/src/helpers/getMarkAttributes.ts

@@ -0,0 +1,25 @@
+import { EditorState } from 'prosemirror-state'
+import { Mark, MarkType } from 'prosemirror-model'
+import getMarkType from './getMarkType'
+
+export default function getMarkAttributes(state: EditorState, typeOrName: string | MarkType) {
+  const type = getMarkType(typeOrName, state.schema)
+  const { from, to, empty } = state.selection
+  let marks: Mark[] = []
+
+  if (empty) {
+    marks = state.selection.$head.marks()
+  } else {
+    state.doc.nodesBetween(from, to, node => {
+      marks = [...marks, ...node.marks]
+    })
+  }
+
+  const mark = marks.find(markItem => markItem.type.name === type.name)
+
+  if (mark) {
+    return { ...mark.attrs }
+  }
+
+  return {}
+}