gatsby-remark-find-replace/dist/index.js

Gatsby remark plugin to find and replace text

"use strict";

var _unistUtilVisit = _interopRequireDefault(require("unist-util-visit"));

var _escapeStringRegexp = _interopRequireDefault(require("escape-string-regexp"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

module.exports = ({
  markdownAST
}, {
  replacements = {},
  prefix = '%'
}) => {
  // Attaches prefix to the start of the string.
  const attachPrefix = str => (prefix || '') + str; // Removes prefix from the start of the string.


  const stripPrefix = str => prefix ? str.replace(RegExp(`^${prefix}`), '') : str; // RegExp to find any replacement keys.


  const regexp = RegExp('(' + Object.keys(replacements).map(key => (0, _escapeStringRegexp.default)(attachPrefix(key))).join('|') + ')', 'g');

  const replacer = (_match, name) => replacements[stripPrefix(name)]; // Go through all text, html, code, inline code, and links.


  (0, _unistUtilVisit.default)(markdownAST, ['text', 'html', 'code', 'inlineCode', 'link'], node => {
    if (node.type === 'link') {
      // For links, the text value is replaced by text node, so we change the
      // URL value.
      const processedText = node.url.replace(regexp, replacer);
      node.url = processedText;
    } else {
      // For all other nodes, replace the node value.
      const processedText = node.value.replace(regexp, replacer);
      node.value = processedText;
    }
  });
  return markdownAST;
};