1 (***********************************************************************)
5 (* Jerome Vouillon, projet Cristal, INRIA Rocquencourt *)
6 (* Objective Caml port by John Malecki and Xavier Leroy *)
8 (* Copyright 1996 Institut National de Recherche en Informatique et *)
9 (* en Automatique. All rights reserved. This file is distributed *)
10 (* under the terms of the Q Public License version 1.0. *)
12 (***********************************************************************)
14 (* $Id: show_source.ml 9299 2009-06-17 08:15:39Z xclerc $ *)
23 (* Print a line; return the beginning of the next line *)
24 let print_line buffer line_number start point before =
25 let next = next_linefeed buffer start
26 and content = buffer_content buffer
28 printf "%i " line_number;
29 if point <= next && point >= start then
30 (print_string (String.sub content start (point - start));
31 print_string (if before then event_mark_before else event_mark_after);
32 print_string (String.sub content point (next - point)))
34 print_string (String.sub content start (next - start));
38 (* Tell Emacs we are nowhere in the source. *)
39 let show_no_point () =
40 if !emacs then printf "\026\026H\n"
42 (* Print the line containing the point *)
43 let show_point ev selected =
44 let mdle = ev.ev_module in
45 let before = (ev.ev_kind = Event_before) in
46 if !emacs && selected then
48 let buffer = get_buffer (Events.get_pos ev) mdle in
49 let source = source_of_module ev.ev_loc.Location.loc_start mdle in
50 printf "\026\026M%s:%i:%i" source
51 (snd (start_and_cnum buffer ev.ev_loc.Location.loc_start))
52 (snd (start_and_cnum buffer ev.ev_loc.Location.loc_end));
53 printf "%s\n" (if before then ":before" else ":after")
55 Out_of_range -> (* point_of_coord *)
56 prerr_endline "Position out of range."
57 | Not_found -> (* Events.get_pos || get_buffer *)
58 prerr_endline ("No source file for " ^ mdle ^ ".");
63 let pos = Events.get_pos ev in
64 let buffer = get_buffer pos mdle in
65 let start, point = start_and_cnum buffer pos in
66 ignore(print_line buffer pos.Lexing.pos_lnum start point before)
68 Out_of_range -> (* point_of_coord *)
69 prerr_endline "Position out of range."
70 | Not_found -> (* Events.get_pos || get_buffer *)
71 prerr_endline ("No source file for " ^ mdle ^ ".")
74 (* Display part of the source. *)
75 let show_listing pos mdle start stop point before =
77 let buffer = get_buffer pos mdle in
78 let rec aff (line_start, line_number) =
79 if line_number <= stop then
80 aff (print_line buffer line_number line_start point before + 1, line_number + 1)
82 aff (pos_of_line buffer start)
84 Out_of_range -> (* pos_of_line *)
85 prerr_endline "Position out of range."
86 | Not_found -> (* get_buffer *)
87 prerr_endline ("No source file for " ^ mdle ^ ".")