@atlaskit/editor-plugin-paste/dist/es2019/pm-plugins/util/get-markdown-slice.js

Paste plugin for @atlaskit/editor-core

import { logException } from '@atlaskit/editor-common/monitoring/error';
import { Slice } from '@atlaskit/editor-prosemirror/model';
import { escapeBackslashAndLinksExceptCodeBlock } from './index';

/**
 * Convert plain-text markdown to a ProseMirror Slice using the GFM converter.
 *
 * Only called when a `markdownToPmConverter` is provided. Returns `undefined` if the converter
 * throws or produces an empty document — the caller will propagate `undefined`
 * without falling back to the legacy MarkdownTransformer.
 */
export function getMarkdownSliceViaGfm(text, schema, openStart, openEnd, markdownToPmConverter) {
  // The injected GFM converter enables tables, task lists, and strikethrough
  // individually, but does not enable the GFM autolink-literal extension.
  // Wrap bare URLs in CommonMark autolink syntax so the card plugin receives
  // a link mark to resolve.
  const escapedTextInput = escapeBackslashAndLinksExceptCodeBlock(text);
  try {
    const doc = schema.nodes.doc.createAndFill({}, markdownToPmConverter({
      markdown: escapedTextInput,
      schema
    }));
    if (doc && doc.content) {
      return new Slice(doc.content, openStart, openEnd);
    }
  } catch (e) {
    void logException(e instanceof Error ? e : new Error(String(e)), {
      location: 'editor-plugin-paste/getMarkdownSlice'
    });
  }
  return undefined;
}