The mustache-haskell package

[Tags:library, mit, program]

Straight implementation of mustache templates


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Properties

Versions 0.1.0.0, 0.1.0.1, 0.1.0.2, 0.1.0.3, 0.1.0.4, 0.1.0.5
Dependencies aeson, base (==4.7.*), bytestring, directory, mustache-haskell, optparse-applicative (>=0.11.0 && <0.12.0), parsec, pretty-show, scientific (>=0.3.0.0 && <0.4.0.0), text, transformers, unordered-containers, vector [details]
License MIT
Author Daniel Choi
Maintainer dhchoi@gmail.com
Stability Unknown
Category Text
Home page https://github.com/danchoi/mustache-haskell
Uploaded Thu Dec 11 20:26:21 UTC 2014 by DanielChoi
Distributions NixOS:0.1.0.5
Downloads 846 total (5 in the last 30 days)
Votes
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Status Docs uploaded by user [build log]
All reported builds failed as of 2014-12-11 [all 2 reports]

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Readme for mustache-haskell

Readme for mustache-haskell-0.1.0.5

mustache-haskell

A Haskell implementation of mustache templates. Expects input data to be JSON.

Should be compatible with the the mustache specification. Except lambdas are not supported.

Supported syntax:

  • basic variables
  • sections
  • inverted sections
  • comments (are suppressed)
  • partials
  • set delimiter

This project currently only provides a command line interface. Later versions will provide a library API for templating ToJSON instances.

Install

You need the Haskell platform on your system.

cabal install mustache-haskell

Or alternatively

git clone git@github.com:danchoi/mustache-haskell.git
cd mustache-haskell
cabal sandbox init
cabal install
# Now copy .cabal-sandbox/bin/mus to your PATH

Usage

mus template.mustache < input.json
mus 

Usage: mus [-c] [-d TEMPLATE_DIRECTORY] TEMPLATE_FILE
  A Haskell implementation of Mustache templates. On STDIN provide the JSON to
  insert into the template.

Available options:
  -h,--help                Show this help text
  -c                       Just output parse tree of template file
  -d TEMPLATE_DIRECTORY    Template directory

List separator syntax

mustache-haskell adds one additional feature to the mustache specification. If you are outputing elements of a list, you can designate an optional list separator with the following syntax:

{{#hobbies, }}{{name}}{{/hobbies}}

This designates ", " as the list separator and will output

sewing, brewing, cooking

when the input is

{"hobbies":[{"name":"sewing"},{"name":"brewing"},{"name":"cooking"}]}

Performance

In a few informal tests,

mus template.mustache < input.json

is about 10x faster than the Ruby mustache gem command-line implementation,

mustache - template.mustache < input.json

Related projects

  • whiskers Mustache templates with Template Haskell (reddit)
  • hastache Haskell implementation of Mustache templates
  • mustache2hs takes in Haskell records (single data constructor only) and a list of mustache template and record name pairs, and generates Haskell code for functions that take an escape function and one of the records
  • mustache.go an implementation of the mustache template language in Go