[Octave-bug-tracker] [bug #56625] debug prompt can change erratically

[Rik]

URL:
  <https://savannah.gnu.org/bugs/?56625>

                 Summary: debug prompt can change erratically
                 Project: GNU Octave
            Submitted by: rik5
            Submitted on: Fri 12 Jul 2019 03:56:56 PM PDT
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: Confirmed
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

The debug prompt can take on different values which seems unnecessary when
compared to previous versions of Octave where "debug>" was used all the time.

In the first case, a breakpoint that is hit with the keyword "keyboard" drops
the user in to the debugger but the prompt is "keyboard>".  A breakpoint that
is set with dbstop drops the user in to the debugger and the prompt is
"debug>".

Second, when in debug mode the prompt can change from "keyboard>" to
"[1]debug>" to "debug>" all in the same session.

A sample m-file called tst_dbp.m is attached


clear all
debug_on_error (1)

x = 1;

keyboard;

y = 2;


And here is the diary of a session that shows three different debug prompts.


octave:3> tst_dbp
keyboard> dbstack
stopped in:

  --> tst_dbp at line 6 [/home/rik/wip/Projects_Mine/octave-dev/tst_dbp.m]
keyboard> qqq
error: called from
    tst_dbp at line 6 column 1
error: 'qqq' undefined near line 1 column 1
[1]debug> dbstack
stopped in:

  --> tst_dbp at line 6 [/home/rik/wip/Projects_Mine/octave-dev/tst_dbp.m]
[1]debug> dbnext
debug> dbcont
octave:4> diary off






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File Attachments:


-------------------------------------------------------
Date: Fri 12 Jul 2019 03:56:56 PM PDT  Name: tst_dbp.m  Size: 26B   By: rik5

<http://savannah.gnu.org/bugs/download.php?file_id=47204>

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