HListPP: A preprocessor for HList labelable labels

[ bsd3, development, program ] [ Propose Tags ]

A preprocessor that replaces `longDescriptiveName with

hLens' (Label :: Label "longDescriptiveName")

Use with ghc flags -F -pgmF HListPP, which can be added per-file with a pragma:

❴-# OPTIONS_GHC -F -pgmF HListPP #-❵ -- change braces to ascii (haddock doesn't allow literal comments in files)

Note that `labels is expanded to something that takes up about 26 more columns. To avoid issues with layout, put a newline after keywords that introduce layout, at least if there are `labels in the same row. In other words:

`character.`position.`x %= \ x -> let
     msg = "a really long message about x>0"
     pos = x - 5
   in if pos < 0
         then error msg
         else pos

Instead of

`character.`position.`x %= \ x -> let msg = "a really long message about x>0"
                                      pos = x - 5
                           in if pos < 0
                               then error msg
                               else pos

A blank library is included in this package to make it possible to depend on HListPP

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Versions [RSS] 0.1, 0.2, 0.2.1, 0.2.2
Change log ChangeLog
Dependencies applicative-quoters (>=0.1 && <0.2), base (>=4.6 && <4.9), regex-applicative (>=0.3 && <0.4) [details]
License BSD-3-Clause
Author Adam Vogt <vogt.adam@gmail.com>
Maintainer Adam Vogt <vogt.adam@gmail.com>
Category Development
Home page http://code.haskell.org/~aavogt/HListPP
Source repo head: darcs get http://code.haskell.org/~aavogt/HListPP
Uploaded by AdamVogt at 2015-11-06T20:25:53Z
Distributions NixOS:0.2.2
Executables HListPP
Downloads 2719 total (7 in the last 30 days)
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Status Docs not available [build log]
Last success reported on 2015-12-08 [all 14 reports]