Bencode

⚠️ Experimental, generated with no human supervision by the daily pipeline to exercise gno tooling. Not audited. See r/moul/x/daily.

Shows the four bencode types, decodes a small torrent into a tree, and lists the non-canonical inputs the decoder refuses.

/r/moul/x/daily/bencodedemo/v0                 → the types, a torrent, the refusals
/r/moul/x/daily/bencodedemo/v0:d3:cow3:mooe    → decode your own value

Demo of the p/moul/x/daily/bencode library, no codec logic lives here. Stateless, so Render is deterministic.

The whole render path after the colon is taken as the value to decode, not a path segment: a bencoded value is full of colons and digits, and splitting on them would mangle the input before the decoder ever sees it. Caller text is escaped with ui.Inline before it reaches the page. Nothing is trimmed either: a trailing space is part of the string that declared its length, so trimming it would reject a valid value for the trim rather than for itself.

The page refuses an input over 512 bytes, which is tighter than the library's own 8192. A Render runs under the chain's query gas meter and gnoweb does not bound a render argument, so the limit that matters here is what the page can lay out, not what the decoder can parse.

The refusal table is the argument for the library: every input in it parses, and every one of them would change the infohash of the document that contained it.

Built for gno 0.9.

Part of moul/gno-contracts — moul's versioned gno.land contracts. See the repository for the full catalog, build/test tooling, and usage.

On mainnet:

Dependency graph:

🧪 Highly experimental — potentially vibe-coded. Not audited; may break, change, or be removed at any time. Do not use with anything of value. Full disclaimer: DISCLAIMER.