sub walktree ($data) {
my (@parts, $cnt);
while ($data ~~ m:nth(++$cnt)/$<head>=[(\s*) \N+\n ] # split off one level as 'head' (or terminal 'leaf')
$<body>=[[$0 \s+ \N+\n]*]/ ) { # next sub-level is 'body' (defined by extra depth of indentation)
my ($head, $body) = ($<head>, $<body>);
$head ~~ /'|' $<weight>=[\S*] \s* '|' $<coverage>=[\S*]/; # save values of weight and coverage (if any) for later
my ($w, $wsum) = (0, 0);
$head ~= .[0],
$w += .[1],
$wsum += .[1] * .[2]
for walktree $body;
my $weight = (~$<weight> or 1).fmt('%-8s');
my $coverage = $w == 0
?? (~$<coverage> or 0).fmt('%-10s')
!! ($wsum/$w) .fmt('%-10.2g');
@parts.push: [$head.subst(/'|' \N+/, "|$weight|$coverage|"), $weight, $coverage ];
}
return @parts;
}
(say .[0] for walktree $_) given
q:to/END/
NAME_HIERARCHY |WEIGHT |COVERAGE |
cleaning | | |
house1 |40 | |
bedrooms | |0.25 |
bathrooms | | |
bathroom1 | |0.5 |
bathroom2 | | |
outside_lavatory | |1 |
attic | |0.75 |
kitchen | |0.1 |
living_rooms | | |
lounge | | |
dining_room | | |
conservatory | | |
playroom | |1 |
basement | | |
garage | | |
garden | |0.8 |
house2 |60 | |
upstairs | | |
bedrooms | | |
suite_1 | | |
suite_2 | | |
bedroom_3 | | |
bedroom_4 | | |
bathroom | | |
toilet | | |
attics | |0.6 |
groundfloor | | |
kitchen | | |
living_rooms | | |
lounge | | |
dining_room | | |
conservatory | | |
playroom | | |
wet_room_&_toilet | | |
garage | | |
garden | |0.9 |
hot_tub_suite | |1 |
basement | | |
cellars | |1 |
wine_cellar | |1 |
cinema | |0.75 |
END