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# -*- shell-script -*-
# Copyright (C) 2008 Rocky Bernstein rocky@gnu.org
#
# bashdb 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.
#
# bashdb 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 bashdb; see the file COPYING. If not, write to the Free Software
# Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA.
# Command aliases are stored here.
typeset -a _Dbg_alias_names=()
typeset -a _Dbg_alias_expansion=()
typeset -i _Dbg_alias_max_index=-1
# Add an new alias in the alias table
_Dbg_alias_add() {
(( $# != 2 )) && return 1
((_Dbg_alias_max_index++))
_Dbg_alias_names+=("$1")
_Dbg_alias_expansion+=("$2")
return 0
}
# Remove alias $1 from our list of command aliases.
_Dbg_alias_remove() {
(( $# != 1 )) && return 1
typeset -i i
if i=$(_Dbg_alias_find_index "$1") ; then
unset "_Dbg_alias_names[$i]"
unset "_Dbg_alias_expansion[$i]"
return 0
else
return 1
fi
}
# Expand alias $1. The result is set in variable expanded_alias which
# could be declared local in the caller.
_Dbg_alias_expand() {
(( $# != 1 )) && return 1
expanded_alias=$1
typeset -i i
i=$(_Dbg_alias_find_index "$1")
(( $? == 0 )) && [[ -n ${_Dbg_alias_expansion[$i]} ]] && expanded_alias=${_Dbg_alias_expansion[$i]}
return 0
}
# Return the index in _Dbg_command_names of $1 or -1 if not there.
_Dbg_alias_find_index() {
typeset find_name=$1
typeset -i i
for ((i=0; i <= $_Dbg_alias_max_index; i++)) ; do
[[ ${_Dbg_alias_names[i]} == "$find_name" ]] && echo $i && return 0
done
return 1
}
# Return in help_aliases an array of strings that are aliases
# of $1
_Dbg_alias_find_aliased() {
(($# != 1)) && return 255
typeset find_name=$1
aliases_found=''
typeset -i i
for ((i=0; i <= $_Dbg_alias_max_index; i++)) ; do
if [[ ${_Dbg_alias_expansion[i]} == "$find_name" ]] ; then
[[ -n $aliases_found ]] && aliases_found+=', '
aliases_found+=${_Dbg_alias_names[i]}
fi
done
return 0
}
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