From 1748f1b80acfb7db872721c60e3e19667e56a85b Mon Sep 17 00:00:00 2001 From: Carlo Holl Date: Sat, 31 Oct 2020 19:02:33 -0700 Subject: gnu: Add ghc-cassava. * gnu/packages/haskell-xyz.scm (ghc-cassava): New variable. Signed-off-by: Christopher Baines --- gnu/packages/haskell-xyz.scm | 81 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) (limited to 'gnu/packages') diff --git a/gnu/packages/haskell-xyz.scm b/gnu/packages/haskell-xyz.scm index ba8a3a1c84..70303e2f16 100644 --- a/gnu/packages/haskell-xyz.scm +++ b/gnu/packages/haskell-xyz.scm @@ -1552,6 +1552,87 @@ constructor which can be parameterised by a string-like type like: the resulting type will be insensitive to cases.") (license license:bsd-3))) +(define-public ghc-cassava + (package + (name "ghc-cassava") + (version "0.5.2.0") + (source + (origin + (method url-fetch) + (uri (string-append + "https://hackage.haskell.org/package/cassava/cassava-" + version + ".tar.gz")) + (sha256 + (base32 + "01h1zrdqb313cjd4rqm1107azzx4czqi018c2djf66a5i7ajl3dk")))) + (build-system haskell-build-system) + (inputs + `(("ghc-attoparsec" ,ghc-attoparsec) + ("ghc-hashable" ,ghc-hashable) + ("ghc-scientific" ,ghc-scientific) + ("ghc-unordered-containers" ,ghc-unordered-containers) + ("ghc-vector" ,ghc-vector) + ("ghc-only" ,ghc-only) + ("ghc-text-short" ,ghc-text-short) + ("ghc-bytestring-builder" ,ghc-bytestring-builder))) + (native-inputs + `(("ghc-hunit" ,ghc-hunit) + ("ghc-quickcheck" ,ghc-quickcheck) + ("ghc-quickcheck-instances" ,ghc-quickcheck-instances) + ("ghc-test-framework" ,ghc-test-framework) + ("ghc-test-framework-hunit" ,ghc-test-framework-hunit) + ("ghc-test-framework-quickcheck2" ,ghc-test-framework-quickcheck2))) + (arguments + `(#:cabal-revision + ("1" + "1ph8rf91z4nf1ryrh9s4gd1kq98jlgk2manwddkpch8k0n9xvfk4") + #:configure-flags '("--flags=-bytestring--lt-0_10_4"))) + (home-page "https://github.com/haskell-hvr/cassava") + (synopsis "CSV parsing and encoding library") + (description + "@code{cassava} is a library for parsing and encoding +@url{https://tools.ietf.org/html/rfc4180, RFC 4180} compliant @url{https:// +en.wikipedia.org/wiki/Comma-separated_values, comma-separated values (CSV)} +data, which is a textual line-oriented format commonly used for exchanging +tabular data. + +@code{cassava}'s API includes support for: + +@itemize @bullet + +@item +Index-based record-conversion +@item +Name-based record-conversion +@item +Typeclass directed conversion of fields and records +@item +Built-in field-conversion instances for standard types +@item +Customizable record-conversion instance derivation via GHC generics +@item +Low-level @url{https://hackage.haskell.org/package/bytestring), bytestring} +builders (see @url{https://hackage.haskell.org/package/cassava-0.5.2.0/docs/ +Data-Csv-Builder.html, Data.Csv.Builder}) +@item +Incremental decoding and encoding API (see @url{https://hackage.haskell.org/ +package/cassava-0.5.2.0/docs/Data-Csv-Incremental.html, Data.Csv.Incremental}) +@item +Streaming API for constant-space decoding (see @url{https://hackage.haskell.org/ +package/cassava-0.5.2.0/docs/Data-Csv-Streaming.html, Data.Csv.Streaming}) +@end itemize + +Moreover, this library is designed to be easy to use; for instance, here's a +very simple example of encoding CSV data: + +@verbatim +>>> Data.Csv.encode [(\"John\",27),(\"Jane\",28)] +\"John,27\r\nJane,28\r\n\" +@end verbatim +") + (license license:bsd-3))) + (define-public ghc-cborg (package (name "ghc-cborg") -- cgit v1.2.3