@atlaskit/editor-plugin-code-block-advanced/dist/es2019/nodeviews/extensions/lineSeparator.js

CodeBlockAdvanced plugin for @atlaskit/editor-core

import { EditorState as CodeMirrorState } from '@codemirror/state';
/**
 * To avoid issues with CRLF (\r\n) syncing with ProseMirror,
 * we only consider \n for line separators.
 */
export const lineSeparatorExtension = () => {
  return CodeMirrorState.lineSeparator.of('\n');
};