�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` var walk = require('css-tree').walk; var utils = require('./utils'); function processRule(node, item, list) { var selectors = node.prelude.children; var declarations = node.block.children; list.prevUntil(item.prev, function(prev) { // skip non-ruleset node if safe if (prev.type !== 'Rule') { return utils.unsafeToSkipNode.call(selectors, prev); } var prevSelectors = prev.prelude.children; var prevDeclarations = prev.block.children; // try to join rulesets with equal pseudo signature if (node.pseudoSignature === prev.pseudoSignature) { // try to join by selectors if (utils.isEqualSelectors(prevSelectors, selectors)) { prevDeclarations.appendList(declarations); list.remove(item); return true; } // try to join by declarations if (utils.isEqualDeclarations(declarations, prevDeclarations)) { utils.addSelectors(prevSelectors, selectors); list.remove(item); return true; } } // go to prev ruleset if has no selector similarities return utils.hasSimilarSelectors(selectors, prevSelectors); }); } // NOTE: direction should be left to right, since rulesets merge to left // ruleset. When direction right to left unmerged rulesets may prevent lookup // TODO: remove initial merge module.exports = function initialMergeRule(ast) { walk(ast, { visit: 'Rule', enter: processRule }); };