# -*- shell-script -*-
# display.sh - gdb-like "display" debugger command
#
# Copyright (C) 2002-2003, 200-2011, 2016
# Rocky Bernstein <rocky@gnu.org>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this Program; see the file COPYING. If not, write to
# the Free Software Foundation, 59 Temple Place, Suite 330, Boston,
# MA 02111 USA.
_Dbg_help_add display \
"**display** [*stmt*]
Evalute *stmt* each time the debugger is stopped. If *stmt* is omitted, evaluate
all of the display statements that are active. In contrast, **info display**
shows the display statements without evaluating them.
Examples:
---------
display echo \$x # show the current value of x each time debugger stops
display # evaluate all display statements
See also:
---------
**undisplay** and **info display**."
# Set display command or list all current display expressions
_Dbg_do_display() {
if (( 0 == $# )); then
_Dbg_eval_all_display
else
typeset -i n=_Dbg_disp_max++
_Dbg_disp_exp[$n]="$@"
_Dbg_disp_enable[$n]=1
_Dbg_printf '%2d: %s' $n "${_Dbg_disp_exp[$n]}"
fi
return 0
}
