@@ -6833,3 +6833,40 @@ these missing pieces.")
"This packages backports new features of the language to older
compilers, such as let+.")
(license license:expat)))
+
+(define-public ocaml-angstrom
+ (package
+ (name "ocaml-angstrom")
+ (version "0.15.0")
+ (home-page "https://github.com/inhabitedtype/angstrom")
+ (source
+ (origin
+ (method git-fetch)
+ (uri (git-reference
+ (url home-page)
+ (commit version)))
+ (file-name (git-file-name name version))
+ (sha256
+ (base32
+ "1hmrkdcdlkwy7rxhngf3cv3sa61cznnd9p5lmqhx20664gx2ibrh"))))
+ (build-system dune-build-system)
+ (arguments
+ ;; Only build the base angstrom package.
+ '(#:package "angstrom"
+ #:test-target "."))
+ (propagated-inputs
+ `(("ocaml-bigstringaf" ,ocaml-bigstringaf)))
+ (native-inputs
+ `(("ocaml-alcotest" ,ocaml-alcotest)
+ ("ocaml-ppx-let" ,ocaml-ppx-let)
+ ("ocaml-syntax-shims" ,ocaml-syntax-shims)))
+ (synopsis "Parser combinators built for speed and memory-efficiency")
+ (description
+ "Angstrom is a parser-combinator library that makes it easy to write
+efficient, expressive, and reusable parsers suitable for high-performance
+applications. It exposes monadic and applicative interfaces for composition,
+and supports incremental input through buffered and unbuffered interfaces.
+Both interfaces give the user total control over the blocking behavior of
+their application, with the unbuffered interface enabling zero-copy IO.
+Parsers are backtracking by default and support unbounded lookahead.")
+ (license license:bsd-3)))