An Haskell template system supporting both HTML5 and XML.
Heist is a powerful template system that supports both HTML5 and XML. Some of Heist's features are:
Designer-friendly HTML5 (or XML) syntax
Templates can be reloaded to make changes visible without recompiling your Haskell code
Enforces near-perfect separation of business logic and view
Powerful abstraction primitives allowing you to eliminate repetition
Easy creation of domain-specific markup languages
Built-in support for including JSON and Markdown content in templates
Simple mechanism for designer-specified template caching
Optional merging of multiple <head> tags defined anywhere in the document
Heist
Heist, part of the Snap Framework, is a Haskell library for xml/html templating. It uses simple XML tags to bind values to your templates in a straightforward way. For example, if you were to put the following in a template:
<bind tag="message">some text</bind>
<p><message/></p>
the resulting xhtml would be
<p>some text</p>
Likewise, if you need to add text to an attribute,
<bind tag="special">special-id</bind>
<div id="${special}">very special</div>
gives you
<div id="special-id">very special</div>
Values can also be pulled from "Splices" (see the documentation for more information.)
Building heist
The heist library is built using Cabal and Hackage. Just run
cabal install
from the heist toplevel directory.
Building the Haddock Documentation
The haddock documentation can be built using the supplied haddock.sh shell script:
./haddock.sh
The docs get put in dist/doc/html/.
Building the testsuite
To build the test suite, cd into the test/ directory and run
$ cabal configure
$ cabal build
From here you can invoke the testsuite by running:
$ ./runTestsAndCoverage.sh
The testsuite generates an hpc test coverage report in test/dist/hpc.