Added removeAttrsPlugin and extended test to have optional params passed along

plugins/removeAttrs.js

@@ -0,0 +1,112 @@
+'use strict';
+
+var ELEM_SEP = ':';
+
+exports.type = 'perItem';
+
+exports.active = false;
+
+exports.params = {
+    attrs: []
+};
+
+/**
+ * Remove attributes
+ *
+ * @param attrs:
+ *
+ *   format: [ element* : attribute* ]
+ *
+ *   element   : regexp (wrapped into ^...$), single * or omitted > all elements
+ *   attribute : regexp (wrapped into ^...$)
+ *
+ *   examples:
+ *
+ *     > remove fill attribute on path element
+ *     ---
+ *       attrs: 'path:fill'
+ *
+ *
+ *     > remove all fill and stroke attribute
+ *     ---
+ *       attrs:
+ *         - 'fill'
+ *         - 'stroke'
+ *
+ *     [is same as]
+ *
+ *       attrs: '(fill|stroke)'
+ *
+ *     [is same as]
+ *
+ *       attrs: '*:(fill|stroke)'
+ *
+ *     [is same as]
+ *
+ *       attrs: '.*:(fill|stroke)'
+ *
+ *
+ *     > remove all stroke related attributes
+ *     ----
+ *     attrs: 'stroke.*'
+ *
+ *
+ * @param {Object} item current iteration item
+ * @param {Object} params plugin params
+ * @return {Boolean} if false, item will be filtered out
+ *
+ * @author Benny Schudel
+ */
+exports.fn = function(item, params) {
+
+        // wrap into an array if params is not
+    if (!Array.isArray(params.attrs)) {
+        params.attrs = [params.attrs];
+    }
+
+    if (item.isElem()) {
+
+            // prepare patterns
+        var patterns = params.attrs.map(function(pattern) {
+
+                // apply to all elements if specifc element is omitted
+            if (pattern.indexOf(ELEM_SEP) === -1) {
+                pattern = ['.*', ELEM_SEP, pattern].join('');
+            }
+
+                // create regexps for element and attribute name
+            return pattern.split(ELEM_SEP)
+                .map(function(value) {
+
+                        // adjust single * to match anything
+                    if (value === '*') { value = '.*'; }
+
+                    return new RegExp(['^', value, '$'].join(''), 'i');
+                });
+
+        });
+
+            // loop patterns
+        patterns.forEach(function(pattern) {
+
+                // matches element
+            if (pattern[0].test(item.elem)) {
+
+                    // loop attributes
+                item.eachAttr(function(attr) {
+                    var name = attr.name;
+
+                        // matches attribute name
+                    if (pattern[1].test(name)) {
+                        item.removeAttr(name);
+                    }
+
+                });
+
+            }
+
+        });
+
+    }
+
+};