File: line_oriented_parser.ml

package info (click to toggle)
coq-doc 8.2pl1-1
  • links: PTS, VCS
  • area: non-free
  • in suites: squeeze
  • size: 19,240 kB
  • ctags: 22,737
  • sloc: ml: 132,933; ansic: 1,960; sh: 1,366; lisp: 456; makefile: 327
file content (29 lines) | stat: -rw-r--r-- 1,173 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
(************************************************************************)
(*  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        *)
(************************************************************************)

(* $Id: line_oriented_parser.ml 5920 2004-07-16 20:01:26Z herbelin $ *)

let line_oriented_channel_to_option stop_string input_channel =
  let count = ref 0 in
  let buff = ref "" in
  let current_length = ref 0 in
  fun i -> 
    if (i - !count) >= !current_length then begin
      count := !count + !current_length + 1;
      buff := input_line input_channel;
      if !buff = stop_string then
        None
      else begin
        current_length := String.length !buff;
        Some '\n'
      end
    end else
      Some (String.get !buff (i - !count))

let flush_until_end_of_stream char_stream =
  Stream.iter (function _ -> ()) char_stream