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Betteridge's Law for Hacker News
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// ==UserScript== | |
// @name BetteridgeLinks | |
// @description Lowlight headlines on Hacker News that conform to Betteridge's Law | |
// @version 0.3 | |
// @match http://news.ycombinator.com/* | |
// @author noibl <pjpee6w5pc@snkmail.com> | |
// ==/UserScript== | |
var questions = ['Is', 'Are', 'Does', 'Do', 'Has', 'Have', 'Did', 'Will', 'Can', 'Could', 'Should']; | |
var selector = '.title a'; | |
var label = 'Probably not'; | |
var className = 'hn-betteridge'; | |
var cssRules = 'a.hn-betteridge:link { color: #828282; } ' | |
+ 'a.hn-betteridge:after {' | |
+ 'color: #600; font-size: 50%; ' | |
+ 'text-transform: uppercase; ' | |
+ 'letter-spacing: 1px; ' | |
+ 'background-color: #fff; ' | |
+ 'content: " ' + label + '" ' | |
+ '}'; | |
var pages = [ | |
'^/$', | |
'^/news$', | |
'^/newest$', | |
'^/x$' | |
]; | |
init(); | |
function init() { | |
var re; | |
for (var i = 0; i < pages.length; i++) { | |
re = new RegExp(pages[i]); | |
if (re.test(window.location.pathname)) { | |
run(); | |
break; | |
} | |
} | |
} | |
function run() { | |
var head = document.getElementsByTagName('head')[0], | |
style = document.createElement('style'), | |
rules = document.createTextNode(cssRules); | |
style.type = 'text/css'; | |
if (style.styleSheet) { style.styleSheet.cssText = rules.nodeValue; } | |
else { style.appendChild(rules); } | |
head.appendChild(style); | |
testLinks(); | |
} | |
function testLinks() { | |
var links = document.querySelectorAll(selector); | |
for (var i = 0; i < links.length; i++) { | |
if (isBetteridge(links[i].innerHTML)) { | |
links[i].className += ' ' + className; | |
} | |
} | |
} | |
function isBetteridge(text) { | |
var re = new RegExp('^(' + questions.join('|') + ').*\\?$'); | |
return re.test(text); | |
} |
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