�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�$�u��i��?w�bs[m�6�K4���O���.�4��%����/����b�C%��t ��M�ז� �-l�G6�mrz2���s�%�9��s@���-�k�9�=���)������k�B5����\��+͂�Zsٲ ��Rn��~G���R���C����� �wIcI��n7jJ���hۛNCS|���j0��8y�iHKֶۛ�k�Ɉ+;Sz������L/��F�*\��Ԕ�#"5��m�2��[S��������=�g��n�a�P�e�ғ�L�� lذaÆ 6l�^k��̱aÆ 6lذaÆ 6lذa;���� �_��ذaÆ 6lذaÆ 6lذaÆ ���R���IEND�B` 'use strict'; const fill = require('fill-range'); const stringify = require('./stringify'); const utils = require('./utils'); const append = (queue = '', stash = '', enclose = false) => { let result = []; queue = [].concat(queue); stash = [].concat(stash); if (!stash.length) return queue; if (!queue.length) { return enclose ? utils.flatten(stash).map(ele => `{${ele}}`) : stash; } for (let item of queue) { if (Array.isArray(item)) { for (let value of item) { result.push(append(value, stash, enclose)); } } else { for (let ele of stash) { if (enclose === true && typeof ele === 'string') ele = `{${ele}}`; result.push(Array.isArray(ele) ? append(item, ele, enclose) : (item + ele)); } } } return utils.flatten(result); }; const expand = (ast, options = {}) => { let rangeLimit = options.rangeLimit === void 0 ? 1000 : options.rangeLimit; let walk = (node, parent = {}) => { node.queue = []; let p = parent; let q = parent.queue; while (p.type !== 'brace' && p.type !== 'root' && p.parent) { p = p.parent; q = p.queue; } if (node.invalid || node.dollar) { q.push(append(q.pop(), stringify(node, options))); return; } if (node.type === 'brace' && node.invalid !== true && node.nodes.length === 2) { q.push(append(q.pop(), ['{}'])); return; } if (node.nodes && node.ranges > 0) { let args = utils.reduce(node.nodes); if (utils.exceedsLimit(...args, options.step, rangeLimit)) { throw new RangeError('expanded array length exceeds range limit. Use options.rangeLimit to increase or disable the limit.'); } let range = fill(...args, options); if (range.length === 0) { range = stringify(node, options); } q.push(append(q.pop(), range)); node.nodes = []; return; } let enclose = utils.encloseBrace(node); let queue = node.queue; let block = node; while (block.type !== 'brace' && block.type !== 'root' && block.parent) { block = block.parent; queue = block.queue; } for (let i = 0; i < node.nodes.length; i++) { let child = node.nodes[i]; if (child.type === 'comma' && node.type === 'brace') { if (i === 1) queue.push(''); queue.push(''); continue; } if (child.type === 'close') { q.push(append(q.pop(), queue, enclose)); continue; } if (child.value && child.type !== 'open') { queue.push(append(queue.pop(), child.value)); continue; } if (child.nodes) { walk(child, node); } } return queue; }; return utils.flatten(walk(ast)); }; module.exports = expand;