@wordpress/block-library/build-module/code/transforms.js

Block library for the WordPress editor.

/**
 * WordPress dependencies
 */
import { createBlock } from '@wordpress/blocks';
import { create, toHTMLString } from '@wordpress/rich-text';

/**
 * Internal dependencies
 */
import { getTransformedMetadata } from '../utils/get-transformed-metadata';
const transforms = {
  from: [{
    type: 'enter',
    regExp: /^```$/,
    transform: () => createBlock('core/code')
  }, {
    type: 'block',
    blocks: ['core/paragraph'],
    transform: ({
      content,
      metadata
    }) => createBlock('core/code', {
      content,
      metadata: getTransformedMetadata(metadata, 'core/code')
    })
  }, {
    type: 'block',
    blocks: ['core/html'],
    transform: ({
      content: text,
      metadata
    }) => {
      return createBlock('core/code', {
        // The HTML is plain text (with plain line breaks), so
        // convert it to rich text.
        content: toHTMLString({
          value: create({
            text
          })
        }),
        metadata: getTransformedMetadata(metadata, 'core/code')
      });
    }
  }, {
    type: 'raw',
    isMatch: node => node.nodeName === 'PRE' && node.children.length === 1 && node.firstChild.nodeName === 'CODE',
    schema: {
      pre: {
        children: {
          code: {
            children: {
              '#text': {}
            }
          }
        }
      }
    }
  }],
  to: [{
    type: 'block',
    blocks: ['core/paragraph'],
    transform: ({
      content,
      metadata
    }) => createBlock('core/paragraph', {
      content,
      metadata: getTransformedMetadata(metadata, 'core/paragraph')
    })
  }]
};
export default transforms;
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