Templating packages for Haskell

Question

What are some preferred packages for templating in Haskell. Something similar to Django Templates, or PHP.

I don't want to always use it with HTML. It can be any other thing. I guess what I want is a string interpolation library, that also supports loops, registration of filter/escape utilities, if conditions, etc.

Not necessarily. This was for a little project that generates Kindle-compatible .mobi files (incidentally they're HTML and XML files). But I have other uses cases where a structured markup language is not involved. — Ionuț G. Stan, Apr 25 '11 at 09:00

score 32 · Answer 1 · answered Apr 24 '11 at 15:16

Some related packages:

Bravo - Static text template generation library
chunks - Simple template library with static safety
halipeto - Haskell Static Web Page Generator
hamlet - Haml-like template files that are compile-time checked
hastache - Haskell implementation of Mustache templates
heist - An xhtml templating system
HStringTemplate - StringTemplate implementation in Haskell.
Interpolation - Multiline strings, interpolation and templating.
PCLT - Extension to Show: templating, catalogizing, languages, parameters, etc.
press - Text template library targeted at the web / HTML generation
template - Simple string substitution
twine - very simple template language

Thanks for the list. Twine and Hastache look quite nice. – Ionuț G. Stan Apr 25 '11 at 08:57 — Ionuț G. Stan, Apr 25 '11 at 08:57

score 25 · Accepted Answer · edited May 23 '17 at 12:01

25

According to the Hackage popularity statistics, the top three packages, by far, are (2014):

(29,000 downloads) shakespeare -- replacement for hamlet.
(27,816 downloads) hamlet -- yesod framework templating
(10,625 downloads) heist -- snap framework templating
(7099 downloads) HStringTemplate -- general purpose templating

You can see more about these two systems in this question.

edited May 23 '17 at 12:01

Community

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answered Apr 24 '11 at 16:38

Don Stewart

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Be aware that both of these are specific to HTML/XML. – Antoine Latter Apr 25 '11 at 02:39
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Actually, HStringTemplate still leads the pack by a healthy margin with 4463 downloads. And it isn't html/xml specific either :-) – sclv Apr 25 '11 at 03:05
Thanks. Indeed I wanted some more generic than just HTML/XML. – Ionuț G. Stan Apr 25 '11 at 08:56
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Hamlet says it's deprecated in favor of [shakespeare](http://hackage.haskell.org/package/shakespeare). – Petr Sep 05 '14 at 08:55

score 3 · Answer 3 · answered May 03 '14 at 14:33

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interpolatedstring-perl6 provides a simple and well designed Quasiquoter to produce interpolated String/Text from Templates containing arbitrary Haskell expressions.

answered May 03 '14 at 14:33

Johannes Gerer

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score 3 · Answer 4 · answered Aug 03 '11 at 03:34

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hastache seems rather well designed imo. Bravo is a cool idea, but suited for what I want (loops, etc.), and it assumes all parameters are, in some way or another, strings.

answered Aug 03 '11 at 03:34

gatoatigrado

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score 1 · Answer 5 · answered Oct 18 '14 at 18:49

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There is also karver (github) package, not mentioned in other answers. Author says “its syntax is heavily inspired by Jinja2”, but “it isn't as full featured or production ready as Jinja is”.

answered Oct 18 '14 at 18:49

firegurafiku

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Just thought I'd mention that karver [uses partial functions for error handling](https://github.com/sourrust/karver/issues/7), so it is unsuitable for use cases where users input the templates. – Andrew Thaddeus Martin Jun 03 '15 at 12:45

Templating packages for Haskell

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