initial commit

node_modules/autoprefixer/lib/brackets.js

@@ -0,0 +1,69 @@
+"use strict";
+
+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 === 'object') {
+        result += "(" + brackets.stringify(i) + ")";
+        continue;
+      }
+
+      result += i;
+    }
+
+    return result;
+  }
+};
+module.exports = brackets;