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build/node_modules/svgo/plugins/removeEmptyContainers.js

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+'use strict';
+
+exports.type = 'perItemReverse';
+
+exports.active = true;
+
+exports.description = 'removes empty container elements';
+
+var container = require('./_collections').elemsGroups.container;
+
+/**
+ * Remove empty containers.
+ *
+ * @see http://www.w3.org/TR/SVG/intro.html#TermContainerElement
+ *
+ * @example
+ * <defs/>
+ *
+ * @example
+ * <g><marker><a/></marker></g>
+ *
+ * @param {Object} item current iteration item
+ * @return {Boolean} if false, item will be filtered out
+ *
+ * @author Kir Belevich
+ */
+exports.fn = function(item) {
+
+    return !(item.isElem(container) && !item.isElem('svg') && item.isEmpty() &&
+        (!item.isElem('pattern') || !item.hasAttrLocal('href')));
+
+};