PNG  IHDR;IDATxܻn0K )(pA 7LeG{ §㻢|ذaÆ 6lذaÆ 6lذaÆ 6lom$^yذag5bÆ 6lذaÆ 6lذa{ 6lذaÆ `}HFkm,mӪôô! x|'ܢ˟;E:9&ᶒ}{v]n&6 h_tڠ͵-ҫZ;Z$.Pkž)!o>}leQfJTu іچ\X=8Rن4`Vwl>nG^is"ms$ui?wbs[m6K4O.4%/bC%t Mז -lG6mrz2s%9s@-k9=)kB5\+͂Zsٲ Rn~GRC wIcIn7jJhۛNCS|j08yiHKֶۛkɈ+;SzL/F*\Ԕ#"5m2[S=gnaPeғL lذaÆ 6l^ḵaÆ 6lذaÆ 6lذa; _ذaÆ 6lذaÆ 6lذaÆ RIENDB` 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 }); };