# -*- shell-script -*-
# validate.sh - some input validation routines
#
# Copyright (C) 2010, 2011
# 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_is_function returns 0 if $1 is a defined function or nonzero otherwise.
# if $2 is nonzero, system functions, i.e. those whose name starts with
# an underscore (_), are included in the search.
_Dbg_is_function() {
(( 0 == $# )) && return 1
typeset needed_fn=$1
typeset -i include_system=${2:-0}
[[ ${needed_fn:0:1} == '_' ]] && ((!include_system)) && {
return 1
}
declare -F $needed_fn >/dev/null 2>&1
return $?
}
# _Dbg_is_int returns 0 if $1 is an integer or nonzero otherwise.
_Dbg_is_int() {
(( 1 == $# )) || return 1
typeset rc=1
eval "$_seteglob"
[[ $1 == $int_pat ]] && rc=0
eval "$_resteglob"
return $rc
}
# _Dbg_is_signed_int returns 0 if $1 is an integer or nonzero otherwise.
_Dbg_is_signed_int() {
(( 1 == $# )) || return 1
typeset rc=1
eval "$_seteglob"
[[ $1 == $_Dbg_signed_int_pat ]] && rc=0
eval "$_resteglob"
return $rc
}
