1 files changed, 77 insertions, 0 deletions
diff --git a/proofs/miscprint.ml b/proofs/miscprint.ml
new file mode 100644
index 00000000..1a63ff67
--- /dev/null
+++ b/proofs/miscprint.ml
@@ -0,0 +1,77 @@
+(************************************************************************)
+(*         *   The Coq Proof Assistant / The Coq Development Team       *)
+(*  v      *   INRIA, CNRS and contributors - Copyright 1999-2018       *)
+(* <O___,, *       (see CREDITS file for the list of authors)           *)
+(*   \VV/  **************************************************************)
+(*    //   *    This file is distributed under the terms of the         *)
+(*         *     GNU Lesser General Public License Version 2.1          *)
+(*         *     (see LICENSE file for the text of the license)         *)
+(************************************************************************)
+
+open Pp
+open Names
+open Misctypes
+
+(** Printing of [intro_pattern] *)
+
+let rec pr_intro_pattern prc {CAst.v=pat} = match pat with
+  | IntroForthcoming true -> str "*"
+  | IntroForthcoming false -> str "**"
+  | IntroNaming p -> pr_intro_pattern_naming p
+  | IntroAction p -> pr_intro_pattern_action prc p
+
+and pr_intro_pattern_naming = function
+  | IntroIdentifier id -> Id.print id
+  | IntroFresh id -> str "?" ++ Id.print id
+  | IntroAnonymous -> str "?"
+
+and pr_intro_pattern_action prc = function
+  | IntroWildcard -> str "_"
+  | IntroOrAndPattern pll -> pr_or_and_intro_pattern prc pll
+  | IntroInjection pl ->
+      str "[=" ++ hv 0 (prlist_with_sep spc (pr_intro_pattern prc) pl) ++
+      str "]"
+  | IntroApplyOn ({CAst.v=c},pat) -> pr_intro_pattern prc pat ++ str "%" ++ prc c
+  | IntroRewrite true -> str "->"
+  | IntroRewrite false -> str "<-"
+
+and pr_or_and_intro_pattern prc = function
+  | IntroAndPattern pl ->
+      str "(" ++ hv 0 (prlist_with_sep pr_comma (pr_intro_pattern prc) pl) ++ str ")"
+  | IntroOrPattern pll ->
+      str "[" ++
+      hv 0 (prlist_with_sep pr_bar (prlist_with_sep spc (pr_intro_pattern prc)) pll)
+      ++ str "]"
+
+(** Printing of [move_location] *)
+
+let pr_move_location pr_id = function
+  | MoveAfter id -> brk(1,1) ++ str "after " ++ pr_id id
+  | MoveBefore id -> brk(1,1) ++ str "before " ++ pr_id id
+  | MoveFirst -> str " at top"
+  | MoveLast -> str " at bottom"
+
+(** Printing of bindings *)
+let pr_binding prc = let open CAst in function
+  | {loc;v=(NamedHyp id, c)} -> hov 1 (Names.Id.print id ++ str " := " ++ cut () ++ prc c)
+  | {loc;v=(AnonHyp n, c)} -> hov 1 (int n ++ str " := " ++ cut () ++ prc c)
+
+let pr_bindings prc prlc = function
+  | ImplicitBindings l ->
+    brk (1,1) ++ str "with" ++ brk (1,1) ++
+    pr_sequence prc l
+  | ExplicitBindings l ->
+    brk (1,1) ++ str "with" ++ brk (1,1) ++
+    pr_sequence (fun b -> str"(" ++ pr_binding prlc b ++ str")") l
+  | NoBindings -> mt ()
+
+let pr_bindings_no_with prc prlc = function
+  | ImplicitBindings l ->
+    brk (0,1) ++ prlist_with_sep spc prc l
+  | ExplicitBindings l ->
+    brk (0,1) ++ prlist_with_sep spc (fun b -> str"(" ++ pr_binding prlc b ++ str")") l
+  | NoBindings -> mt ()
+
+let pr_with_bindings prc prlc (c,bl) =
+  hov 1 (prc c ++ pr_bindings prc prlc bl)
+