# -*- shell-script -*- # display.sh - gdb-like "display" debugger command # # Copyright (C) 2002-2003, 200-2011, 2016 # Rocky Bernstein # # 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 }