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(************************************************************************)
(* * 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 Tactypes
(** 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 = let open Namegen in 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 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)
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