judicial-hy / 0.200103

  module.exports = function walk(nodes, cb, bubble) {
      var i, max, node, result;
  
      for (i = 0, max = nodes.length; i < max; i += 1) {
          node = nodes[i];
          if (!bubble) {
              result = cb(node, i, nodes);
          }
  
          if (result !== false && node.type === 'function' && Array.isArray(node.nodes)) {
              walk(node.nodes, cb, bubble);
          }
  
          if (bubble) {
              cb(node, i, nodes);
          }
      }
  };