Language.Haskell.HSX.QQ

this module provides a QuasiQuoter that supports the HSX syntax.

• - Module : Language.Haskell.HSX.Tranform
• - Copyright : (c) Niklas Broberg 2004-2012
• - License : BSD-style (see the file LICENSE.txt)
• -
• - Maintainer : Niklas Broberg, [e-mail]
• - Stability : experimental
• - Portability : portable
• -

You will need to enable the QuasiQuotes extension for it to work, which you can do by adding this to the top of your file:

{-# LANGUAGE QuasiQuotes #-}

Here is a simple example that generates an HTML fragment:

import Data.Char        (toUpper)
import HSX.QQ           (hsx)
import HSX.XMLGenerator

html :: (XMLGenerator m) => XMLGenT m (XMLType m)
html = [hsx| <p><% map toUpper "hello, world!"  %></p> |]

The syntax used by the hsx QuasiQuoter is the same as what is used by trhsx. It is mostly normal XML syntax which a few key differences:

1. strings inside tags and attributes are automatically escaped -- you do not need to do <, etc.
2. The % syntax is used to embed the result of evaluating a Haskell expression into the XML

Values are embedde using the EmbedAsChild and EmbedAsAttr classes. Additional instances can be added to support application specific types.

Documentation

hsx :: QuasiQuoter

QuasiQuoter which can be used to parse HSX syntax