google-one-touch.user.js

// ==UserScript==
// @name         google-one-touch
// @description  Adds keyboard shortcuts to each entry.
// @namespace    http://d.hatena.ne.jp/murky-satyr
// @include      http://www.google.tld/*
// ==/UserScript==
var splinks = document.getElementById('mbEnd');
if(splinks) splinks.parentNode.removeChild(splinks);

addEventListener('load', function onload(){
  removeEventListener('load', onload, false);
  var H3 = document.getElementsByTagName('h3');
  if(!H3.length) return;

  var h3s = [];
  Array.slice(H3, 0, 36).forEach(function(h, i){
    if(h.className !== 'r') return;
    h.innerHTML = <span style='font:bold 100% mono-space'>{
      ((i + 10) % 36).toString(36)}: </span>.toXMLString() + h.innerHTML;
    h3s.push(h);
  });
  document.addEventListener('keydown', function(e){
    var k = e.keyCode;
    if(e.ctrlKey || e.altKey || /[^0-9A-Z]/.test(String.fromCharCode(k)) ||
       /^(?:TEXTAREA|INPUT)$/.test(document.activeElement.tagName)) return;
    var h = h3s[k < 58 ? k % 48 + 26 : k - 65];
    if(!h) return;
    var u = h.getElementsByTagName('a')[0].href;
    e.shiftKey ? location.href = u : open(u);
  }, false);
}, false);