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|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(*i $Id: ppextend.ml 5920 2004-07-16 20:01:26Z herbelin $ *)
(*i*)
open Pp
open Util
open Names
(*i*)
(*s Pretty-print. *)
(* Dealing with precedences *)
type precedence = int
type parenRelation = L | E | Any | Prec of precedence
type tolerability = precedence * parenRelation
type ppbox =
| PpHB of int
| PpHOVB of int
| PpHVB of int
| PpVB of int
| PpTB
type ppcut =
| PpBrk of int * int
| PpTbrk of int * int
| PpTab
| PpFnl
let ppcmd_of_box = function
| PpHB n -> h n
| PpHOVB n -> hov n
| PpHVB n -> hv n
| PpVB n -> v n
| PpTB -> t
let ppcmd_of_cut = function
| PpTab -> tab ()
| PpFnl -> fnl ()
| PpBrk(n1,n2) -> brk(n1,n2)
| PpTbrk(n1,n2) -> tbrk(n1,n2)
type unparsing =
| UnpMetaVar of int * parenRelation
| UnpListMetaVar of int * parenRelation * unparsing list
| UnpTerminal of string
| UnpBox of ppbox * unparsing list
| UnpCut of ppcut
|
