grammar H {
    rule TOP {^ <pairs> $}
    rule pairs { <pair>[ <pair>]* }
    rule pair { <key>':'<mash> }
    token key { \w+ }
    token mash { \w+ }
}

class H::Actions {
    method TOP($/)  {
        my %h;
        for $/<pairs><pair> -> $p {
            %h{$p<key>} = $p<mash>;
        }
        make  %h;
    }
    method pairs($/){ make $/ }
}

my $data = "  TOP:most skeleton:door  "
        ~ "password:host belief:trust  key:mash   ";

my $m = H.parse( $data, :actions( H::Actions ) );
die unless $m;

for $m.ast.kv -> $k, $v {
    say $k, " -> ", $v;
}

my %export_me = $m.ast;