|
adam@295
|
1 let read_line () =
|
|
adam@295
|
2 try
|
|
adam@295
|
3 Some (read_line ())
|
|
adam@295
|
4 with End_of_file -> None
|
|
adam@295
|
5
|
|
adam@295
|
6 let strstr' p s n =
|
|
adam@295
|
7 try
|
|
adam@295
|
8 Some (Str.search_forward (Str.regexp_string p) s n)
|
|
adam@295
|
9 with Not_found -> None
|
|
adam@295
|
10
|
|
adam@295
|
11 let strstr p s = strstr' p s 0
|
|
adam@295
|
12
|
|
adam@295
|
13 let prefix s1 s2 = String.length s2 >= String.length s1 && Str.string_before s2 (String.length s1) = s1
|
|
adam@295
|
14
|
|
adam@295
|
15 let sanitize s =
|
|
adam@295
|
16 let rec san n acc =
|
|
adam@295
|
17 try
|
|
adam@295
|
18 let pos = Str.search_forward (Str.regexp "\\[\\|%\\|#") s n in
|
|
adam@295
|
19 let ender = match s.[pos] with
|
|
adam@295
|
20 | '[' -> ']'
|
|
adam@295
|
21 | _ -> s.[pos] in
|
|
adam@295
|
22 let pos' = String.index_from s (pos+1) ender in
|
|
adam@295
|
23 san (pos'+1) (acc ^ String.sub s n (pos-n))
|
|
adam@295
|
24 with Not_found -> acc ^ Str.string_after s n
|
|
adam@295
|
25 in san 0 ""
|
|
adam@295
|
26
|
|
adam@295
|
27 let rec initial () =
|
|
adam@295
|
28 match read_line () with
|
|
adam@295
|
29 | None -> ()
|
|
adam@295
|
30 | Some line ->
|
|
adam@295
|
31 match strstr "(**" line with
|
|
adam@295
|
32 | None -> initial ()
|
|
adam@295
|
33 | Some pos ->
|
|
adam@295
|
34 match strstr "*)" line with
|
|
adam@295
|
35 | None ->
|
|
adam@295
|
36 begin match strstr "[[" line with
|
|
adam@295
|
37 | None ->
|
|
adam@295
|
38 print_endline (sanitize (Str.string_after line (pos+3)));
|
|
adam@295
|
39 comment ()
|
|
adam@295
|
40 | Some _ -> runTo "]]"
|
|
adam@295
|
41 end
|
|
adam@295
|
42 | Some pos' ->
|
|
adam@295
|
43 let rest = Str.string_after line (pos+3) in
|
|
adam@295
|
44 if not (prefix " printing" rest || prefix " begin" rest || prefix " end" rest) then
|
|
adam@295
|
45 print_endline (sanitize (String.sub line (pos+3) (pos' - (pos+3))));
|
|
adam@295
|
46 initial ()
|
|
adam@295
|
47
|
|
adam@295
|
48 and comment () =
|
|
adam@295
|
49 match read_line () with
|
|
adam@295
|
50 | None -> ()
|
|
adam@295
|
51 | Some line ->
|
|
adam@295
|
52 match strstr "*)" line with
|
|
adam@295
|
53 | None ->
|
|
adam@295
|
54 begin match strstr "[[" line with
|
|
adam@295
|
55 | None ->
|
|
adam@295
|
56 begin match strstr "<<" line with
|
|
adam@295
|
57 | None ->
|
|
adam@295
|
58 print_endline (sanitize line);
|
|
adam@295
|
59 comment ()
|
|
adam@295
|
60 | Some _ -> runTo ">>"
|
|
adam@295
|
61 end
|
|
adam@295
|
62 | Some _ -> runTo "]]"
|
|
adam@295
|
63 end
|
|
adam@295
|
64 | Some pos ->
|
|
adam@295
|
65 print_endline (sanitize (Str.string_before line pos));
|
|
adam@295
|
66 initial ()
|
|
adam@295
|
67
|
|
adam@295
|
68 and runTo ender =
|
|
adam@295
|
69 match read_line () with
|
|
adam@295
|
70 | None -> ()
|
|
adam@295
|
71 | Some line ->
|
|
adam@295
|
72 match strstr ender line with
|
|
adam@295
|
73 | None -> runTo ender
|
|
adam@295
|
74 | _ ->
|
|
adam@295
|
75 match strstr "*)" line with
|
|
adam@295
|
76 | None -> comment ()
|
|
adam@295
|
77 | _ -> initial ()
|
|
adam@295
|
78
|
|
adam@295
|
79 let () = initial ()
|
