flow like the river

VISUALIZACION/node_modules/autoprefixer/lib/brackets.js

@@ -0,0 +1,46 @@
+(function() {
+  var brackets, last;
+
+  last = function(array) {
+    return array[array.length - 1];
+  };
+
+  brackets = {
+    parse: function(str) {
+      var current, j, len, stack, sym;
+      current = [''];
+      stack = [current];
+      for (j = 0, len = str.length; j < len; j++) {
+        sym = str[j];
+        if (sym === '(') {
+          current = [''];
+          last(stack).push(current);
+          stack.push(current);
+        } else if (sym === ')') {
+          stack.pop();
+          current = last(stack);
+          current.push('');
+        } else {
+          current[current.length - 1] += sym;
+        }
+      }
+      return stack[0];
+    },
+    stringify: function(ast) {
+      var i, j, len, result;
+      result = '';
+      for (j = 0, len = ast.length; j < len; j++) {
+        i = ast[j];
+        if (typeof i === 'object') {
+          result += '(' + brackets.stringify(i) + ')';
+        } else {
+          result += i;
+        }
+      }
+      return result;
+    }
+  };
+
+  module.exports = brackets;
+
+}).call(this);