Types and parsers for software version numbers.

 A library for parsing and comparing software version numbers. We like to give
 version numbers to our software in a myriad of ways. Some ways follow strict
 guidelines for incrementing and comparison. Some follow conventional wisdom
 and are generally self-consistent. Some are just plain asinine. This library
 provides a means of parsing and comparing /any/ style of versioning, be it a
 nice Semantic Version like this:
 .
 > 1.2.3-r1+git123
 .
  ...or a monstrosity like this:
 .
 > 2:10.2+0.0093r3+1-1
 .
 Please switch to <http://semver.org Semantic Versioning> if you aren't
 currently using it. It provides consistency in version incrementing and has
 the best constraints on comparisons.
 .
 This library implements version @2.0.0@ of the SemVer spec.
 .
 This package provides a library for the Haskell programming language.
 See http://www.haskell.org/ for more information on Haskell.