The debug-diff package
Debug.Diff is a quick tool for comparing two Haskell values, as when diagnosing a test failure. It pretty-prints the values (using the groom library) and passes them to an external diff command (colordiff by default), which writes the diff to standard output.
Debug.Diff.Config provides more control over the diff parameters.
|Change log||None available|
|Dependencies||base (>=3 && <5), groom (>=0.1), process (>=1.0), temporary (>=1.1) [details]|
|Author||Keegan McAllister <email@example.com>|
|Maintainer||Keegan McAllister <firstname.lastname@example.org>|
|Uploaded||Wed Sep 14 01:08:45 UTC 2011 by KeeganMcAllister|
|Downloads||323 total (1 in last 30 days)|
|Status||Docs uploaded by user|
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