ottparse-pretty: Pretty-printer for Ott parse trees

[ bsd3, program, text ] [ Propose Tags ]
Versions 0.1, 0.1.1, 0.1.2,,,,,,
Change log CHANGES
Dependencies base (>=4.0 && <4.11), containers (>=0.3 && <0.6), parsec (>=3.0 && <3.2), split (>=0.1 && <0.3), uniplate (==1.6.*) [details]
License BSD-3-Clause
Author Brent Yorgey
Revised Revision 1 made by BrentYorgey at Mon Aug 7 20:06:43 UTC 2017
Category Text
Source repo head: darcs get
Uploaded by BrentYorgey at Sat May 21 21:40:05 UTC 2016
Distributions NixOS:
Executables ottparse-pretty
Downloads 2819 total (30 in the last 30 days)
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Status Docs not available [build log]
Last success reported on 2016-11-25 [all 3 reports]
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Ott ( is a tool for writing formal definitions of programming languages and calculi. Often the Ott grammars one defines end up being ambiguous, and Ott signals its displeasure by spewing forth several massive parse trees in a format requiring formidable patience to read. Finding the slight differences between two such parse trees is an exercise in seizure-inducing tedium.

To the rescue comes ottparse-pretty! Simply paste in each parse and it is shown to you in a nicely formatted tree form with all the extra meaningless cruft removed.


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