1 files changed, 71 insertions, 0 deletions
diff --git a/node_modules/autoprefixer/lib/brackets.js b/node_modules/autoprefixer/lib/brackets.js
new file mode 100644
index 00000000..7e1ad85c
--- /dev/null
+++ b/node_modules/autoprefixer/lib/brackets.js
@@ -0,0 +1,71 @@
+'use strict';
+
+var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+
+var last = function last(array) {
+    return array[array.length - 1];
+};
+
+var brackets = {
+
+    /**
+     * Parse string to nodes tree
+     */
+    parse: function parse(str) {
+        var current = [''];
+        var stack = [current];
+
+        for (var i = 0; i < str.length; i++) {
+            var sym = str[i];
+            if (sym === '(') {
+                current = [''];
+                last(stack).push(current);
+                stack.push(current);
+                continue;
+            }
+
+            if (sym === ')') {
+                stack.pop();
+                current = last(stack);
+                current.push('');
+                continue;
+            }
+
+            current[current.length - 1] += sym;
+        }
+
+        return stack[0];
+    },
+
+
+    /**
+     * Generate output string by nodes tree
+     */
+    stringify: function stringify(ast) {
+        var result = '';
+        for (var _iterator = ast, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
+            var _ref;
+
+            if (_isArray) {
+                if (_i >= _iterator.length) break;
+                _ref = _iterator[_i++];
+            } else {
+                _i = _iterator.next();
+                if (_i.done) break;
+                _ref = _i.value;
+            }
+
+            var i = _ref;
+
+            if ((typeof i === 'undefined' ? 'undefined' : _typeof(i)) === 'object') {
+                result += '(' + brackets.stringify(i) + ')';
+                continue;
+            }
+
+            result += i;
+        }
+        return result;
+    }
+};
+
+module.exports = brackets;
+\ No newline at end of file