Function getFencedCodeBlockValue

src/language-markdown/utilities.js:231–242

(node, originalText)

// https://github.com/remarkjs/remark/issues/512
// TODO[@fisker]: Use `node.value` directly when we update mdx to use latest remark
function getFencedCodeBlockValue(node, originalText) {
  const { value } = node;
  if (
    node.position.end.offset === originalText.length &&
    value.endsWith("\n") &&
    // Code block has no end mark
    originalText.endsWith("\n")
  ) {
    return value.slice(0, -1);
  }
  return value;
}

function mapAst(ast, handler) {
  return (function preorder(node, index, parentStack) {