Mass Deface {$key} = $1 eq 'undef' ? undef : $1; } my $prevpos = 0; sub FIRSTKEY { $prevpos = 0; substr($Config_SH_expanded, 1, index($Config_SH_expanded, '=') - 1 ); } sub NEXTKEY { my $pos = index($Config_SH_expanded, qq('\n), $prevpos) + 2; my $len = index($Config_SH_expanded, "=", $pos) - $pos; $prevpos = $pos; $len > 0 ? substr($Config_SH_expanded, $pos, $len) : undef; } sub EXISTS { return 1 if exists($_[0]->{$_[1]}); return(index($Config_SH_expanded, "\n$_[1]='") != -1 ); } sub STORE { die "\%Config::Config is read-only\n" } *DELETE = *CLEAR = \*STORE; # Typeglob aliasing uses less space sub config_sh { substr $Config_SH_expanded, 1, $config_sh_len; } sub config_re { my $re = shift; return map { chomp; $_ } grep eval{ /^(?:$re)=/ }, split /^/, $Config_SH_expanded; } sub config_vars { # implements -V:cfgvar option (see perlrun -V:) foreach (@_) { # find optional leading, trailing colons; and query-spec my ($notag,$qry,$lncont) = m/^(:)?(.*?)(:)?$/; # flags fore and aft, # map colon-flags to print decorations my $prfx = $notag ? '': "$qry="; # tag-prefix for print my $lnend = $lncont ? ' ' : ";\n"; # line ending for print # all config-vars are by definition \w only, any \W means regex if ($qry =~ /\W/) { my @matches = config_re($qry); print map "$_$lnend", @matches ? @matches : "$qry: not found" if !$notag; print map { s/\w+=//; "$_$lnend" } @matches ? @matches : "$qry: not found" if $notag; } else { my $v = (exists $Config::Config{$qry}) ? $Config::Config{$qry} : 'UNKNOWN'; $v = 'undef' unless defined $v; print "${prfx}'${v}'$lnend"; } } } # Called by the real AUTOLOAD sub launcher { undef &AUTOLOAD; goto \&$Config::AUTOLOAD; } 1;