�PNG  IHDR��;���IDATx��ܻn�0���K�� �)(�pA��� ���7�LeG{�� �§㻢|��ذaÆ 6lذaÆ 6lذaÆ 6lom��$^�y���ذag�5bÆ 6lذaÆ 6lذa{���� 6lذaÆ �`����}H�Fkm�,�m����Ӫ���ô�ô!� �x�|'ܢ˟;�E:���9�&ᶒ�}�{�v]�n&�6� �h��_��t�ڠ͵-ҫ���Z;��Z$�.�P���k�ž)�!��o���>}l�eQfJ�T��u і���چ��\��X=8��Rن4`Vw�l�>����n�G�^��i�s��"ms�$�u��i��?w�bs[m�6�K4���O���.�4��%����/����b�C%��t ��M�ז� �-l�G6�mrz2���s�%�9��s@���-�k�9�=���)������k�B5����\��+͂�Zsٲ ��Rn��~G���R���C����� �wIcI��n7jJ���hۛNCS|���j0��8y�iHKֶۛ�k�Ɉ+;Sz������L/��F�*\��Ԕ�#"5��m�2��[S��������=�g��n�a�P�e�ғ�L�� lذaÆ 6l�^k��̱aÆ 6lذaÆ 6lذa;���� �_��ذaÆ 6lذaÆ 6lذaÆ ���R���IEND�B` 'use strict'; const { visit } = require('../xast.js'); /** * Plugins engine. * * @module plugins * * @param {Object} data input data * @param {Object} info extra information * @param {Array} plugins plugins object from config * @return {Object} output data */ module.exports = function (data, info, plugins) { // Try to group sequential elements of plugins array // to optimize ast traversing const groups = []; let prev; for (const plugin of plugins) { if (prev && plugin.type == prev[0].type) { prev.push(plugin); } else { prev = [plugin]; groups.push(prev); } } for (const group of groups) { switch (group[0].type) { case 'perItem': data = perItem(data, info, group); break; case 'perItemReverse': data = perItem(data, info, group, true); break; case 'full': data = full(data, info, group); break; case 'visitor': for (const plugin of group) { if (plugin.active) { const visitor = plugin.fn(data, plugin.params, info); visit(data, visitor); } } break; } } return data; }; /** * Direct or reverse per-item loop. * * @param {Object} data input data * @param {Object} info extra information * @param {Array} plugins plugins list to process * @param {boolean} [reverse] reverse pass? * @return {Object} output data */ function perItem(data, info, plugins, reverse) { function monkeys(items) { items.children = items.children.filter(function (item) { // reverse pass if (reverse && item.children) { monkeys(item); } // main filter var filter = true; for (var i = 0; filter && i < plugins.length; i++) { var plugin = plugins[i]; if (plugin.active && plugin.fn(item, plugin.params, info) === false) { filter = false; } } // direct pass if (!reverse && item.children) { monkeys(item); } return filter; }); return items; } return monkeys(data); } /** * "Full" plugins. * * @param {Object} data input data * @param {Object} info extra information * @param {Array} plugins plugins list to process * @return {Object} output data */ function full(data, info, plugins) { plugins.forEach(function (plugin) { if (plugin.active) { data = plugin.fn(data, plugin.params, info); } }); return data; }