<script type="application/javascript;version=1.7;">

var dict_src = ('a .- b -... c -.-. d -.. e . f ..-. g --. h .... i .. j .--- k -.- l .-.. '+
                'm -- n -. o --- p .--. q --.- r .-. s ... t - u ..- v ...- w .-- x -..- y -.-- z --..').split(' ');
var dict = {};
for ( var i = 0; i < dict_src.length; i+=2 )
    dict[ dict_src[i] ] = dict_src[i+1];

function is_in(p,s) { return p == s.substr(0,p.length); }
function parse( t, start )
    {
    if ( 0 == t.length )
        yield start;
    else
        {
        for ( var n in dict )
            if ( is_in( dict[n], t ) )
                {
                var tails = parse( t.substr( dict[n].length ), start+n );
                for ( var x in tails )//; x = tails.next(); )
                    yield x;
                }
        }
    }

document.write( dict.toSource() + '<br/>' );

//var results = parse( '-.-...-...-....-..-----.-...-...-.-...-.-', '' ); // the full line
var results = parse( '.-...-.-...-.-', '' ); // only the "a skirt" part
document.write( results.next() + '<br/>' );
for ( var x; x = results.next(); )
    document.write( x + '<br/>' );

</script>