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|
(***********************************************************************)
(* *)
(* OCaml *)
(* *)
(* Jerome Vouillon, projet Cristal, INRIA Rocquencourt *)
(* OCaml port by John Malecki and Xavier Leroy *)
(* *)
(* Copyright 1996 Institut National de Recherche en Informatique et *)
(* en Automatique. All rights reserved. This file is distributed *)
(* under the terms of the Q Public License version 1.0. *)
(* *)
(***********************************************************************)
(* $Id$ *)
open Debugger_config
open Instruct
open Parameters
open Primitives
open Printf
open Source
(* Print a line; return the beginning of the next line *)
let print_line buffer line_number start point before =
let next = next_linefeed buffer start
and content = buffer_content buffer
in
printf "%i " line_number;
if point <= next && point >= start then
(print_string (String.sub content start (point - start));
print_string (if before then event_mark_before else event_mark_after);
print_string (String.sub content point (next - point)))
else
print_string (String.sub content start (next - start));
print_newline ();
next
(* Tell Emacs we are nowhere in the source. *)
let show_no_point () =
if !emacs then printf "\026\026H\n"
(* Print the line containing the point *)
let show_point ev selected =
let mdle = ev.ev_module in
let before = (ev.ev_kind = Event_before) in
if !emacs && selected then
begin try
let buffer = get_buffer (Events.get_pos ev) mdle in
let source = source_of_module ev.ev_loc.Location.loc_start mdle in
printf "\026\026M%s:%i:%i" source
(snd (start_and_cnum buffer ev.ev_loc.Location.loc_start))
(snd (start_and_cnum buffer ev.ev_loc.Location.loc_end));
printf "%s\n" (if before then ":before" else ":after")
with
Out_of_range -> (* point_of_coord *)
prerr_endline "Position out of range."
| Not_found -> (* Events.get_pos || get_buffer *)
prerr_endline ("No source file for " ^ mdle ^ ".");
show_no_point ()
end
else
begin try
let pos = Events.get_pos ev in
let buffer = get_buffer pos mdle in
let start, point = start_and_cnum buffer pos in
ignore(print_line buffer pos.Lexing.pos_lnum start point before)
with
Out_of_range -> (* point_of_coord *)
prerr_endline "Position out of range."
| Not_found -> (* Events.get_pos || get_buffer *)
prerr_endline ("No source file for " ^ mdle ^ ".")
end
(* Display part of the source. *)
let show_listing pos mdle start stop point before =
try
let buffer = get_buffer pos mdle in
let rec aff (line_start, line_number) =
if line_number <= stop then
aff (print_line buffer line_number line_start point before + 1, line_number + 1)
in
aff (pos_of_line buffer start)
with
Out_of_range -> (* pos_of_line *)
prerr_endline "Position out of range."
| Not_found -> (* get_buffer *)
prerr_endline ("No source file for " ^ mdle ^ ".")
|
