ede: Templating language with similar syntax and features to Liquid or Jinja2.

[ library, mpl, program, template, text, web ] [ Propose Tags ]

ED-E is a templating language written in Haskell with a specific set of features:

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Versions [RSS] [faq] 0.2.1, 0.2.2, 0.2.3,, 0.2.4, 0.2.5, 0.2.6, 0.2.7, 0.2.8,,,,,,,, 0.2.9,,, (info)
Dependencies aeson (>=0.8 && <1.6), attoparsec, base (>=4.12 && <5), bytestring (>=0.10.4), comonad (>=4.2), directory (>=1.2), ede, filepath (>=1.2), free (>=4.8), lens (>=4.0), mtl (>=, optparse-applicative (>=0.11), parsers (>=, prettyprinter (>=1.7), prettyprinter-ansi-terminal (>=1.1), scientific (>=0.3.1), text (>=1.2), text-manipulate (>=0.1.2), trifecta (>=2.1), unordered-containers (>=0.2.3), vector (>=0.7.1) [details]
License MPL-2.0
Copyright Copyright (c) 2013-2020 Brendan Hay
Author Brendan Hay
Maintainer Brendan Hay <brendan.g.hay@gmail.com>
Revised Revision 2 made by jack at 2021-11-16T08:28:04Z
Category Text, Template, Web
Home page http://github.com/brendanhay/ede
Source repo head: git clone git://github.com/brendanhay/ede.git
Uploaded by BrendanHay at 2020-12-01T12:14:43Z
Distributions NixOS:, Stackage:
Executables ede
Downloads 13088 total (352 in the last 30 days)
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Status Hackage Matrix CI
Docs available [build log]
Last success reported on 2020-12-01 [all 1 reports]


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ED-E is a templating language written in Haskell with a specific set of features:

  • Logicless (within reason): A small set of consistent predicates and expressions for formatting and presentational logic are provided.
  • Secure: No arbitrary code evaluation, with input data required to be fully specified at render time.
  • Stateless: Parsing and rendering are separate steps so that loading, parsing, include resolution, and embedding of the compiled template can optionally be done ahead of time, amortising cost.
  • Markup agnostic: ED-E is used to write out everything from configuration files for system services, to HTML and formatted emails.
  • Control over purity: Users can choose pure or IO-based resolution of include expressions.
  • No surprises: All parsing, type assurances, and rendering steps report helpful error messages with line/column metadata. Variable shadowing, unprintable expressions, implicit type coercion, and unbound variable access are all treated as errors errors.

Please see the documentation for more information.


A set of syntatic/semantic fragments for all supported expressions can be found in the tests or the documentation.


For any problems, comments or feedback please create an issue here on GitHub.


ED-E is released under the Mozilla Public License Version 2.0