hledger is a haskell port and friendly fork of John Wiegley's ledger
 accounting tool. This package provides core data types, parsers and
 utilities used by the hledger tools. It also aims to be a useful
 library for building h/ledger-compatible tools or unrelated financial
 apps in Haskell.
 .
 This package provides the documentation for a library for the Haskell
 programming language.
 See http://www.haskell.org/ for more information on Haskell.