61 lines
2.1 KiB
OCaml
61 lines
2.1 KiB
OCaml
(***********************************************************************)
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(* *)
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(* MLTk, Tcl/Tk interface of Objective Caml *)
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(* *)
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(* Francois Rouaix, Francois Pessaux, Jun Furuse and Pierre Weis *)
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(* projet Cristal, INRIA Rocquencourt *)
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(* Jacques Garrigue, Kyoto University RIMS *)
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(* *)
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(* Copyright 2002 Institut National de Recherche en Informatique et *)
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(* en Automatique and Kyoto University. All rights reserved. *)
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(* This file is distributed under the terms of the GNU Library *)
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(* General Public License, with the special exception on linking *)
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(* described in file LICENSE found in the Objective Caml source tree. *)
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(* *)
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(***********************************************************************)
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open Code
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let debug = ref false
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let defined = ref []
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let linenum = ref 1
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let rec nop = function
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| Line _ -> incr linenum
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| Ifdef (_, _, c1, c2o) ->
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List.iter nop c1;
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begin match c2o with
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| Some c2 -> List.iter nop c2
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| None -> ()
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end
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| _ -> ()
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;;
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let rec exec lp f = function
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| Line line ->
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if !debug then
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prerr_endline (Printf.sprintf "%03d: %s" !linenum
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(String.sub line 0 ((String.length line) - 1)));
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f line; incr linenum
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| Ifdef (sw, k, c1, c2o) ->
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if List.mem k !defined = sw then begin
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List.iter (exec lp f) c1;
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begin match c2o with
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| Some c2 -> List.iter nop c2
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| None -> ()
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end;
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lp !linenum
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end else begin
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List.iter nop c1;
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match c2o with
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| Some c2 ->
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lp !linenum;
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List.iter (exec lp f) c2
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| None -> ()
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end
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| Define k -> defined := k :: !defined
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| Undef k ->
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defined := List.fold_right (fun k' s ->
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if k = k' then s else k' :: s) [] !defined
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;;
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