prettyprinter-combinators

Some useful combinators for the prettyprinter package

https://github.com/sergv/prettyprinter-combinators

Version on this page:	0.1.1.1
LTS Haskell 24.16:	0.1.3
Stackage Nightly 2025-10-24:	0.1.3
Latest on Hackage:	0.1.3

See all snapshots prettyprinter-combinators appears in

Apache-2.0 licensed by Sergey Vinokurov

Maintained by Sergey Vinokurov

This version can be pinned in stack with:prettyprinter-combinators-0.1.1.1@sha256:8ee291dfb0039d9fadfd192106cdc4962c0c5ebfa06972b45d20b9937bdf9d7e,1836

Module documentation for 0.1.1.1

Prettyprinter

Depends on 12 packages(full list with versions):

base, bimap, bytestring, containers, dlist, prettyprinter, pretty-show, syb, template-haskell, text, unordered-containers, vector

Used by 2 packages in lts-21.7(full list with versions):

htoml-parse, toml-reader-parse

This is a set of utilities for the Haskell prettyrinter package. Most notable is automatic deriving of Pretty instance from the Generic instance, e.g.

{-# LANGUAGE DeriveGeneric #-}

import Prettyprinter.Generics

data Foo a b = Bar Int | Baz a b
  deriving (Generic)

instance (Pretty a, Pretty b) => Pretty (Foo a b) where
  pretty = ppGeneric

printed :: Doc ann
printed = pretty $ Baz (Bar 10 :: Foo () ()) [1..22]

which would put following into printed:

Changes

0.1.1.1

ppVector and ppVectorWith now accept generic vectors
Add lower bound pretty-show >= 1.6