Problem: packed UTF 9

Code: packed+UTF+9/tails+%28%3E%3D0.22%29_1645290154

Nibbles version: 0.2 | 0.21 | 0.22 | 0.23 | 0.24 | 0.25 | 1.00

Format: Compact | Simple | +Type | Table | JSON | .nbl (DeBruijn) | .nbl (names)

Note: This code seems to be written in Nibbles version >= 0.22

(implicit string concatenation):[chr] 
    << (init):[chr] 
        \ (reverse):[chr] 
            * (join):[chr] 
                : (append):[chr] 
                    512 (integer):int 
                    << (init):[chr] 
                        "\n" (string):[chr] 
                \ (reverse):[[chr]] 
                    % (split (remove empties)):[[chr]] 
                        @ (= fstLine):[chr] 
                        ~ (auto = words):auto 
    ch (chr):chr 
        (implicit arg = fstInt):int