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package XppConfig;
#
# Written by Oron Peled <oron@actcom.co.il>
# Copyright (C) 2008, Xorcom
# This program is free software; you can redistribute and/or
# modify it under the same terms as Perl itself.
#
# $Id$
#
use strict;
my $conf_file = "/etc/dahdi/xpp.conf";
sub subst_var($$) {
my $lookup = shift;
my $string = shift;
if(defined $lookup->{$string}) {
return $lookup->{$string};
} else {
return $string;
}
}
sub read_config($) {
my $input = shift || die;
my %xpp_config;
my $lookup = \%xpp_config;
open(F, $input) || die "Failed reading configuration $input: $!\n";
LINE:
while(<F>) {
chomp;
s/#.*//; # strip comments
next unless /\S/;
s/^\s*//;
if(s/\\$//) {
my $next = <F>;
$next =~ s/^\s*//;
$_ .= " $next";
redo LINE;
}
my ($key, $value) = split(/=/, $_, 2);
# Trim whitespace around key/value
$key =~ s/^\s*(\S+)\s*$/$1/;
$value =~ s/^\s*(\S+)\s*$/$1/;
# Variable substitution
my $new_value = $value;
$new_value =~ s/\$(\w+)/subst_var($lookup,$1)/eg;
$xpp_config{$key} = $new_value;
}
close F;
return %xpp_config;
}
sub import {
my $pack = shift || die "Import without package?";
my $init_dir = shift || die "$pack::import -- missing init_dir parameter";
my $local_conf = "$init_dir/xpp.conf";
$conf_file = $local_conf if -r $local_conf;
my %x = read_config($conf_file);
}
sub show_vars {
my $assoc = shift;
foreach (sort keys %{$assoc}) {
print "$_\t$assoc->{$_}\n";
}
}
sub source_vars {
my @keys = @_;
my %conf = read_config($conf_file);
my %result;
my $k;
my $v;
foreach (@keys) {
if(defined $conf{$_}) {
$result{$_} = $conf{$_};
}
}
return ($conf_file, %result);
}
1;
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