41faf62094
git-subtree-dir: yesod-examples git-subtree-mainline:2dc10de435git-subtree-split:851f928e55
73 lines
2.0 KiB
Plaintext
73 lines
2.0 KiB
Plaintext
\begin{code}
|
|
{-# LANGUAGE QuasiQuotes, OverloadedStrings #-}
|
|
|
|
import Text.Hamlet
|
|
import qualified Data.ByteString.Lazy as L
|
|
import Data.Text (Text, cons)
|
|
|
|
data Person = Person
|
|
{ name :: String
|
|
, age :: String
|
|
, page :: PersonUrls
|
|
, isMarried :: Bool
|
|
, children :: [String]
|
|
}
|
|
data PersonUrls = Homepage | PersonPage Text
|
|
|
|
renderUrls :: PersonUrls -> [(Text, Text)] -> Text
|
|
renderUrls Homepage _ = "/"
|
|
renderUrls (PersonPage name) _ = '/' `cons` name
|
|
|
|
footer :: Hamlet url
|
|
footer = [$hamlet|\
|
|
<div id="footer">Thank you, come again
|
|
|]
|
|
|
|
template :: Person -> Hamlet PersonUrls
|
|
template person = [$hamlet|
|
|
!!!
|
|
|
|
<html>
|
|
<head>
|
|
<title>Hamlet Demo
|
|
<body>
|
|
<h1>Information on #{string (name person)}
|
|
<p>#{string (name person)} is #{string (age person)} years old.
|
|
<h2>
|
|
$if isMarried person
|
|
\Married
|
|
$else
|
|
\Not married
|
|
<ul>
|
|
$forall child <- children person
|
|
<li>#{string child}
|
|
<p>
|
|
<a href="@{page person}">See the page.
|
|
\^{footer}
|
|
|]
|
|
|
|
main :: IO ()
|
|
main = do
|
|
let person = Person
|
|
{ name = "Michael"
|
|
, age = "twenty five & a half"
|
|
, page = PersonPage "michael"
|
|
, isMarried = True
|
|
, children = ["Adam", "Ben", "Chris"]
|
|
}
|
|
L.putStrLn $ renderHamlet renderUrls $ template person
|
|
\end{code}
|
|
|
|
Outputs (new lines added for readability):
|
|
<code><pre>
|
|
<!DOCTYPE html>
|
|
<html><head><title>Hamlet Demo</title></head><body>
|
|
<h1>Information on Michael</h1>
|
|
<p>Michael is twenty five & a half years old.</p>
|
|
<h2>Married</h2>
|
|
<ul><li>Adam</li><li>Ben</li><li>Chris</li></ul>
|
|
<p><a href="/michael">See the page.</a></p>
|
|
<div id="footer">Thank you, come again</div>
|
|
</body></html>
|
|
</pre></code>
|