Bookmarklet to switch between GitHub code & documentation in GitHub pages

code2doc.coffee

h = location.href
docStr = /^http:\/\/(\w*).github.com\/(\w*)(?:\/.*)?/
codeStr = /^https?:\/\/github.com\/(\w*)\/(\w*)(?:\/.*)?/
docTmp = "http://$user.github.com/$proj"
codeTmp = "https://github.com/$user/$proj"

isDoc = h.match(docStr)
isCode = h.match(codeStr)

redirect = (loc) ->
    location.href = loc
    true

if isDoc
    user = isDoc[1]
    proj = isDoc[2]
    redirect(codeTmp.replace("$user", user).replace("$proj", proj))
else if isCode
    user = isCode[1]
    proj = isCode[2]
    redirect(docTmp.replace("$user", user).replace("$proj", proj))
else
    false