#!@SH_PROG@
# -*- shell-script -*-
# kshdb - top-level debugger program.
#
#   Copyright (C) 2008 Rocky Bernstein rocky@gnu.org
#
#   kshdb 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.
#
#   kshdb 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 kshdb; see the file COPYING.  If not, write to the Free Software
#   Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA.
 
# This routine gets called via the -c or --command option and its sole
# purpose is to capture the command string such as via "x $*" or 
# in a traceback ("where").
function _Dbg_eval {
  eval $*  # Type: "x $*" to see what's being run.
}
 
typeset -a _Dbg_script_args=("$@")
 
# Original $0. Note we can't set this in an include.
typeset _Dbg_orig_0=$0
 
# Equivalent to basename $0; the short program name
typeset _Dbg_pname=${0##*/}  
 
## Stuff set by autoconf/configure ###
typeset prefix=@prefix@
typeset _Dbg_libdir=@PKGDATADIR@
###
 
# Name we refer to ourselves by
typeset _Dbg_debugger_name='@PACKAGE@'
 
# The shell we are configured to run under.
typeset _Dbg_shell='@SH_PROG@'
 
# The release name we are configured to run under.
typeset _Dbg_release='@PACKAGE_VERSION@'
 
# The short shell name. Helps keep code common in bash, zsh, and ksh debuggers.
typeset _Dbg_shell_name=${_Dbg_shell##*/}  # Equivalent to basename(_Dbg_shell)
 
# Parse just the libdir option
typeset -i i
for ((i=0; $i<${#_Dbg_script_args[@]}-1; i++)) ; do 
    typeset arg=${_Dbg_script_args[$i]}
    if [[ $arg == '-L' || $arg == '--libdir' ]] ; then
	((i++))
	_Dbg_libdir="${_Dbg_script_args[$i]}"
	break
    fi
done
 
if [[ ! -d $_Dbg_libdir ]] && [[ ! -d $_Dbg_libdir ]] ; then 
  echo "${_Dbg_pname}: Can't read debugger library directory '${_Dbg_libdir}'."
  echo "${_Dbg_pname}: Perhaps kshdb is installed wrong (if its installed)." >&2
  echo "${_Dbg_pname}: Try running kshdb using -L (with a different directory)." >&2
  echo "${_Dbg_pname}: Run kshdb --help for a list and explanation of options." >&2
  exit 1
fi
 
# [[ $# == 0 && -z $show_version && -z $_Dbg_cmd ]] && {
#   echo "${_Dbg_pname}: Need to give a script name to debug."
#   exit 1
# }
 
# Pull in the rest of the debugger code.
typeset _Dbg_main="$_Dbg_libdir/dbg-main.sh"
if [[ ! -r $_Dbg_main ]] ; then 
  print "${_Dbg_pname}: Can't read debugger library file '${_Dbg_main}'."
  print "${_Dbg_pname}: Perhaps @PACKAGE@ is installed wrong (if its installed)." >&2
  print "${_Dbg_pname}: Try running @PACKAGE@ using -L (with a different directory)." >&2
  print "${_Dbg_pname}: Run @PACKAGE@ --help for a list and explanation of options." >&2
  exit 1
fi
 
. ${_Dbg_libdir}/dbg-main.sh
 
_Dbg_set_debugger_entry
 
# Note that this is called via kshdb rather than "ksh --debugger" or kshdb-trace
_Dbg_script=1
 
if [[ -n $_Dbg_EXECUTION_STRING ]] ; then
    _Dbg_script_file=$(_Dbg_tempname cmd)
    echo "$_Dbg_EXECUTION_STRING" >$_Dbg_script_file
fi
 
if (( ${#_Dbg_script_args[@]} > 0 )) ; then
    _Dbg_script_file="${_Dbg_script_args[0]}"
    case ${_Dbg_script_file:0:1} in
	'.' | '/' ) 
	    # Leave alone
	    ;;
    * )
	    # Make . explicit.
	    _Dbg_script_file="./${_Dbg_script_file}"
	    _Dbg_script_args[0]="$_Dbg_script_file"
    esac
    # FIXME: 
    # shift _Dbg_script_args
elif [[ -z $_Dbg_EXECUTION_STRING ]] ; then
    echo >&2 "${_Dbg_pname}: need to give a script to debug or use the -c option."
    exit 1
fi
 
if [[ ! -r "$_Dbg_script_file" ]] ; then
  echo "${_Dbg_pname}: cannot read program to debug: $_Dbg_script_file." >&2
  exit 1
fi
 
_Dbg_step_ignore=2
while : ; do
    trap '_Dbg_hook $? "$@"' DEBUG
    . ${_Dbg_script_args[@]}
    trap '' DEBUG
    _Dbg_msg_nocr 'Program terminated.'
    if (( !o_no_quit )); then
	_Dbg_msg "Type 's' to restart."
	_Dbg_process_commands
	_Dbg_step_ignore=2
	# _Dbg_msg "Type 's' or 'R' to restart."
    else
	_Dbg_msg ''
	break
    fi
done