A few fixes to the build system (mostly for ocamlbuild)

 * vars.mli was mentionning Term instead of Constr, leading to a dep cycle
 * Having a file named toplevel/toplevel.ml isn't a good idea when we also
   have a toplevel/toplevel.mllib that ought to produce a toplevel.cma.
   We rename toplevel.ml into Coqloop.ml
 * Extra cleanup of toplevel.mllib :
   - Ppextra isn't anywhere around (?!)
   - Ppvernac was mentionned twice, and rather belongs to printing.mllib anyway
   - Vernacexpr is a .mli and shouldn't appear in an .mllib
 * During the link, printing.cma now comes after parsing.cma (Ppvernac uses Egramml)
 * A few extra -threads in ocamlbuild files (btw, it's a bit sad to need -thread
   for coqchk).

1 files changed, 42 insertions, 0 deletions

diff --git a/toplevel/coqloop.mli b/toplevel/coqloop.mli
new file mode 100644
index 000000000..1375f3361
--- /dev/null
+++ b/toplevel/coqloop.mli
@@ -0,0 +1,42 @@
+(************************************************************************)
+(*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
+(* <O___,, *   INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2012     *)
+(*   \VV/  **************************************************************)
+(*    //   *      This file is distributed under the terms of the       *)
+(*         *       GNU Lesser General Public License Version 2.1        *)
+(************************************************************************)
+
+open Pp
+open Pcoq
+
+(** The Coq toplevel loop. *)
+
+(** A buffer for the character read from a channel. We store the command
+ * entered to be able to report errors without pretty-printing. *)
+
+type input_buffer = {
+  mutable prompt : unit -> string;
+  mutable str : string; (** buffer of already read characters *)
+  mutable len : int;    (** number of chars in the buffer *)
+  mutable bols : int list; (** offsets in str of begining of lines *)
+  mutable tokens : Pcoq.Gram.parsable; (** stream of tokens *)
+  mutable start : int } (** stream count of the first char of the buffer *)
+
+(** The input buffer of stdin. *)
+
+val top_buffer : input_buffer
+val set_prompt : (unit -> string) -> unit
+
+(** Toplevel error explanation, dealing with locations, Drop, Ctrl-D
+  May raise only the following exceptions: [Drop] and [End_of_input],
+  meaning we get out of the Coq loop. *)
+
+val print_toplevel_error : exn -> std_ppcmds
+
+(** Parse and execute one vernac command. *)
+
+val do_vernac : unit -> unit
+
+(** Main entry point of Coq: read and execute vernac commands. *)
+
+val loop : unit -> unit