Pipes: Copy RSS URL

pipes_copy_rss_url.user.js

// ==UserScript==
// @name        Pipes Copy RSS URL
// @description Copies a human readable version of it.
// @namespace   http://pipes.yahoo.com/matyr
// @include     http://pipes.yahoo.com/pipes/pipe.info?_id=*
// ==/UserScript==
var btn = document.createElement('button');
btn.innerHTML = '<u>C</u>opy RSS URL';
btn.accessKey = 'C';
btn.addEventListener('click', function(e){
  prompt(
    'Pipes Copy RSS URL',
    (document.querySelector('h4.permalink > span').textContent +
     '?_render=rss&'+
     Array.map(
       document.querySelectorAll('#runform .label + td > input'),
       function(lm)(encodeURIComponent(lm.name) +'='+
                    encodeURIComponent(lm.value))).join('&')));
}, false);
document.getElementById('runform').parentNode.appendChild(btn);