1 files changed, 49 insertions, 0 deletions
diff --git a/node_modules/svgo/plugins/removeViewBox.js b/node_modules/svgo/plugins/removeViewBox.js
new file mode 100644
index 00000000..33595656
--- /dev/null
+++ b/node_modules/svgo/plugins/removeViewBox.js
@@ -0,0 +1,49 @@
+'use strict';
+
+exports.type = 'perItem';
+
+exports.active = false;
+
+exports.description = 'removes viewBox attribute when possible (disabled by default)';
+
+var regViewBox = /^0\s0\s([\-+]?\d*\.?\d+([eE][\-+]?\d+)?)\s([\-+]?\d*\.?\d+([eE][\-+]?\d+)?)$/,
+    viewBoxElems = ['svg', 'pattern'];
+
+/**
+ * Remove viewBox attr which coincides with a width/height box.
+ *
+ * @see http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute
+ *
+ * @example
+ * <svg width="100" height="50" viewBox="0 0 100 50">
+ *             ⬇
+ * <svg width="100" height="50">
+ *
+ * @param {Object} item current iteration item
+ * @return {Boolean} if false, item will be filtered out
+ *
+ * @author Kir Belevich
+ */
+exports.fn = function(item) {
+
+    if (
+        item.isElem(viewBoxElems) &&
+        item.hasAttr('viewBox') &&
+        item.hasAttr('width') &&
+        item.hasAttr('height')
+    ) {
+
+        var match = item.attr('viewBox').value.match(regViewBox);
+
+        if (match) {
+            if (
+                item.attr('width').value === match[1] &&
+                item.attr('height').value === match[3]
+            ) {
+                item.removeAttr('viewBox');
+            }
+        }
+
+    }
+
+};