In all snippets below,
  1. the 1st half of the pipe is slurping the file, decoding of BitTorrent bencode serialisation format and printing the torrent name
  2. the 2nd half of the pipe is echoing STDIN to STDOUT
perl -MBencode=bdecode -gnE \
  'say $_->{info}{name} for bdecode $_' \
  ~/.local/share/qBittorrent/BT_backup/1f1c7bab36973365cbe6572b09e0926
+abaad31a6.torrent \
| perl -pe ''

[download]

the output is:

Crysis�

(I've put the output as a paragraph, not as code, coz it doesn't display properly as code)

I need unicode support, so add -Mutf8::all, and it fails: 

perl -MBencode=bdecode -gnE \
  'say $_->{info}{name} for bdecode $_' \
  ~/.local/share/qBittorrent/BT_backup/1f1c7bab36973365cbe6572b09e0926
+abaad31a6.torrent \
| perl -Mutf8::all -pe ''
Can't decode ill-formed UTF-8 octet sequence <AE>.

[download]
Even Raku/Perl6 fails: 
perl -MBencode=bdecode -gnE \
  'say $_->{info}{name} for bdecode $_' \
  ~/.local/share/qBittorrent/BT_backup/1f1c7bab36973365cbe6572b09e0926
+abaad31a6.torrent \
| raku -e '$*IN.slurp.put'
Malformed UTF-8 near bytes 69 73 ae
  in block <unit> at -e line 1

[download]
Raku needs adjustments: 
perl -MBencode=bdecode -gnE \
  'say $_->{info}{name} for bdecode $_' \
  ~/.local/share/qBittorrent/BT_backup/1f1c7bab36973365cbe6572b09e0926
+abaad31a6.torrent \
| raku -e '$*IN.slurp(:bin).decode("utf8-c8").put'

[download]

the output is:

Crysis􏿽xAE

The torrent name in the qBittorent is shown as Crysis®

The torrent file (inside a .tgz archive):

https://github.com/user-attachments/files/16258067/1f1c7bab36973365cbe6572b09e0926abaad31a6.torrent.tgz

(part of Raku issue over there https://github.com/rakudo/rakudo/issues/5606. perlmonks doesn't support uploading files?)

The main issue is the whole thing dies instead of carrying on. I would expect a warning about a malformed string, not a fatal error.

In reply to Can't decode ill-formed UTF-8 octet sequence by Veraellyunjie

Title:
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