@atlaskit/editor-plugin-image-upload/dist/es2019/pm-plugins/input-rule.js

Image upload plugin for @atlaskit/editor-core

import { SafePlugin } from '@atlaskit/editor-common/safe-plugin';
import { createRule } from '@atlaskit/editor-common/utils';
import { createPlugin } from '@atlaskit/prosemirror-input-rules';
import { createExternalMediaNode } from '../ui/hooks/utils';
export function inputRulePlugin(schema, featureFlags) {
  if (!schema.nodes.media || !schema.nodes.mediaSingle) {
    return;
  }

  // ![something](link) should convert to an image
  // eslint-disable-next-line require-unicode-regexp
  const imageRule = createRule(/!\[(.*)\]\((\S+)\)$/, (state, match, start, end) => {
    const {
      schema
    } = state;
    const attrs = {
      src: match[2],
      alt: match[1]
    };
    const node = createExternalMediaNode(attrs.src, schema);
    if (node) {
      return state.tr.replaceWith(start, end, node);
    }
    return null;
  });
  return new SafePlugin(createPlugin('image-upload', [imageRule]));
}
export default inputRulePlugin;