# the help subsystem
#
# It is a very simple system in that you type in 'help <cmd>' and it
-# looks for a file called <cmd>.hlp in either the local_cmd directory
+# looks for a file called command.hlp in either the local_cmd directory
# or the cmd directory (in that order).
#
-# if you just type in 'help' by itself you get what is in 'help.hlp'.
-#
# Copyright (c) 1998 - Dirk Koopman G1TLH
#
# $Id$
#
+
+my ($self, $line) = @_;
+my @out;
+
+# this is naff but it will work for now
+$line = "help" unless $line;
+my $lang = $self->lang;
+$lang = 'en' if !$lang;
+
+# each help file contains lines that looks like:-
+#
+# === 0^EN^*^Description
+# text
+# text
+#
+# === 0^EN^help^Description
+# text
+# text
+# text
+#
+# The fields are:- privilege level, Language, full command name, short description
+#
+
+my $h = new IO::File;
+
+if (!open($h, "$main::localcmd/Commands_$lang.hlp")) {
+ if (!open($h, "$main::cmd/Commands_$lang.hlp")) {
+ return (1, $self->msg('helpe1'));
+ }
+}
+my $in;
+
+$line =~ s/![\w\/]//og;
+$line =~ s/\//\.\*\//og;
+$line =~ s/^\s+//og;
+$line =~ s/\s+$//og;
+
+# sort out aliases
+my $alias = CmdAlias::get_hlp($line);
+$line = $alias if $alias;
+
+my $state = 0;
+foreach $in (<$h>) {
+ next if $in =~ /^\#/;
+ chomp $in;
+ if ($in =~ /^===/) {
+ last if $state == 2; # come out on next command
+ $in =~ s/=== //;
+ my ($priv, $cmd, $desc) = split /\^/, $in;
+ next if $priv > $self->priv; # ignore subcommands that are of no concern
+ next unless $cmd =~ /^$line/i;
+ push @out, "$cmd $desc" unless $cmd =~ /-$/o;
+ $state = 1;
+ next;
+ }
+ if ($state > 0) {
+ push @out, " $in";
+ $state = 2;
+ }
+}
+
+close($h);
+
+push @out, $self->msg('helpe2', $line) if @out == 0;
+
+return (1, @out);
+