ocamlPackages.ansi: init at 0.7.0 (#535547)

pkgs/development/ocaml-modules/ansi/default.nix

@@ -0,0 +1,48 @@
+{
+  lib,
+  buildDunePackage,
+  fetchFromGitHub,
+  astring,
+  fmt,
+  tyxml,
+  alcotest,
+}:
+
+buildDunePackage (finalAttrs: {
+  pname = "ansi";
+  version = "0.7.0";
+
+  minimalOCamlVersion = "4.10";
+
+  src = fetchFromGitHub {
+    owner = "ocurrent";
+    repo = "ansi";
+    tag = finalAttrs.version;
+    hash = "sha256-VZR8hz2v4gAvTkizBt59DSYr3tGPWT1Iid8m8YQx48Y=";
+  };
+
+  propagatedBuildInputs = [
+    astring
+    fmt
+    tyxml
+  ];
+
+  checkInputs = [
+    alcotest
+  ];
+
+  doCheck = true;
+
+  meta = {
+    description = "ANSI escape sequence parser";
+    longDescription = ''
+      This package provides a basic ANSI escape parser. Program output (such as
+      build logs) often includes ANSI escape codes to colour and style the output.
+      This library interprets some of the common codes and can convert them to
+      HTML, producing basic styled output (e.g. highlighting errors in red).
+    '';
+    homepage = "https://github.com/ocurrent/ansi";
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ otini ];
+  };
+})

pkgs/top-level/ocaml-packages.nix

@@ -52,6 +52,8 @@ let
 
         angstrom-unix = callPackage ../development/ocaml-modules/angstrom-unix { };
 
+        ansi = callPackage ../development/ocaml-modules/ansi { };
+
         ansiterminal = callPackage ../development/ocaml-modules/ansiterminal { };
 
         ao = callPackage ../development/ocaml-modules/ao { };