unikernel/duniverse/mirage/lib/functoria/misc.ml

@@ -0,0 +1,68 @@
+(*
+ * Copyright (c) 2013-2020 Thomas Gazagnaire <thomas@gazagnaire.org>
+ * Copyright (c) 2013-2020 Anil Madhavapeddy <anil@recoil.org>
+ * Copyright (c) 2015-2020 Gabriel Radanne <drupyog@zoho.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *)
+
+open Rresult
+open Astring
+
+let err_cmdliner ?(usage = false) = function
+  | Ok x -> `Ok x
+  | Error s -> `Error (usage, s)
+
+module type Monoid = sig
+  type t
+
+  val empty : t
+  val union : t -> t -> t
+end
+
+(* {Misc informations} *)
+
+module Name = struct
+  module Opam = struct
+    type t = string
+
+    let to_string = Fun.id
+  end
+
+  let opamify s =
+    let b = Buffer.create (String.length s) in
+    String.iter
+      (function
+        | ('a' .. 'z' | 'A' .. 'Z' | '0' .. '9' | '_' | '-') as c ->
+            Buffer.add_char b c
+        | '.' -> Buffer.add_char b '_'
+        | _ -> ())
+      s;
+    let s' = Buffer.contents b in
+    if String.length s' = 0 then raise (Invalid_argument s);
+    s'
+
+  let ocamlify s =
+    let b = Buffer.create (String.length s) in
+    String.iter
+      (function
+        | ('a' .. 'z' | 'A' .. 'Z' | '0' .. '9' | '_') as c ->
+            Buffer.add_char b c
+        | '-' | '.' | ' ' -> Buffer.add_char b '_'
+        | _ -> ())
+      s;
+    let s' = Buffer.contents b in
+    if String.length s' = 0 || ('0' <= s'.[0] && s'.[0] <= '9') then
+      raise (Invalid_argument s);
+    s'
+end