text: // Copyright (c) 2015 Uber Technologies, Inc.
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to deal
  // in the Software without restriction, including without limitation the rights
  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  // copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in
  // all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  // THE SOFTWARE.
  'use strict';
  
  var util = require('util');
  var Readable = require('stream').Readable;
  
  function truncateFramePath(frame) {
      var split = frame.split('/');
      if (split.length > 1) {
          return split[0] + split[split.length - 1];
      }
  
      return frame;
  }
  
  function convertFrame(frame) {
      return truncateFramePath(frame);
  }
  
  function StackVisAdaptor(stacks) {
      var self = this;
  
      // Skips first three
      self.done = false;
      self.lines = [' ', ' ', ' '];
      stacks.forEach(function pushStack(stack) {
          stack.forEach(function pushLine(line) {
              self.lines.push(convertFrame(line));
          });
          self.lines.push('   1');
      });
  
      Readable.call(self);
      self.pause();
  }
  
  util.inherits(StackVisAdaptor, Readable);
  
  StackVisAdaptor.prototype._read = function _read() {
      if (!this.done) {
          this.done = true;
          this.push(this.lines.join('\n'));
      }
  
      this.push(null);
  };
  
  module.exports = StackVisAdaptor;
  