rsuite-theme/_node_modules/unist-util-modify-children/index.js

The suite theme for pagurian

'use strict';

var iterate = require('array-iterate');

module.exports = modifierFactory;

/* Turn `callback` into a child-modifier accepting a parent.
 * See `array-iterate` for more info. */
function modifierFactory(callback) {
  return iteratorFactory(wrapperFactory(callback));
}

/* Turn `callback` into a `iterator' accepting a parent. */
function iteratorFactory(callback) {
  return iterator;

  function iterator(parent) {
    var children = parent && parent.children;

    if (!children) {
      throw new Error('Missing children in `parent` for `modifier`');
    }

    return iterate(children, callback, parent);
  }
}

/* Pass the context as the third argument to `callback`. */
function wrapperFactory(callback) {
  return wrapper;

  function wrapper(value, index) {
    return callback(value, index, this);
  }
}