Fix table cell width errors Ben Davies' challenge 134 task 2 solution

They don't appear in the provided test output, but do in other cases,
breaking how the table is rendered due to the leftmost column getting
the wrong width.

1 files changed, 16 insertions, 14 deletions

diff --git a/challenge-134/ben-davies/raku/ch-2.raku b/challenge-134/ben-davies/raku/ch-2.raku
index 4ca97a4c5f..624ebf127b 100644
--- a/challenge-134/ben-davies/raku/ch-2.raku
+++ b/challenge-134/ben-davies/raku/ch-2.raku
@@ -4,25 +4,27 @@ unit sub MAIN(IntStr:D $m where * > 0, IntStr:D $n where * > 0) {
     my @n  = <1>...$n;
     my @mn = @m X* @n;
 
-    my Int:D $nw = @n.map(*.chars).max + 1;
-    my Int:D $cw = @m.map(*.chars).max + 1;
-    my Int:D $mw = @mn.map(*.chars).max + 1;
+    my Int:D $nw = @n.map(*.chars).max;
+    my Int:D $mw = @m.map(*.chars).max + 1;
 
-    put sprintf '╭%-s┬%-s╮', '─' x $nw, border('─', '┬');
-    put sprintf '│%-s│%-s│', ' ' x ($nw - 1) ~ '✕', fmt-row(@n, '│');
-    put sprintf '├%-s╆%-s┪', '─' x $nw, border('━', '┿');
-    put sprintf '│%-s┃%-s┃', fmt-cell($_.head), fmt-row($_, '│') for @mn.rotor($n);
-    put sprintf '╰%-s┺%-s┛', '─' x $nw, border('━', '┷');
+    put sprintf '╭%-s┬%-s╮', '─' x $nw, '─'.&border('┬');
+    put sprintf '│%-s│%-s│', '✕'.&col(' '), @n.&row('│');
+    put sprintf '├%-s╆%-s┪', '─' x $nw, '━'.&border('┿');
+    put sprintf '│%-s┃%-s┃', .head.&col(' '), .&row('│') for @mn.rotor($n);
+    put sprintf '╰%-s┺%-s┛', '─' x $nw, '━'.&border('┷');
     put "Distinct Terms: $_" and
         put "Count: $_.:<+>" given @mn.unique.sort;
 
-    sub border(Str:D $token, Str:D $delim) {
-        join $delim, $token x $cw xx $n
+    sub border(Str:D $border, Str:D $delim --> Str:D) {
+        join $delim, $border x $mw xx $n
     }
-    sub fmt-row(@xs, Str:D $delim) {
-        @xs.map(&fmt-cell).join($delim)
+    sub col(Str:D(Cool:D) $cell, Str:D $delim --> Str:D) {
+        ($delim x ($nw - $cell.chars)) ~ $cell
     }
-    sub fmt-cell(Int:D $mn) {
-        (' ' x $cw).chop($mn.chars) ~ $mn
+    sub row(@xs, Str:D $delim --> Str:D) {
+        @xs.map(*.&cell: ' ').join($delim)
+    }
+    sub cell(Str:D(Cool:D) $cell, Str:D $delim --> Str:D) {
+        ($delim x ($mw - $cell.chars)) ~ $cell
     }
 }