poka.sh

 Docs

FNL

Generated by scripts/gen-format-pages.py from docs/data/format-metadata/, FILE_FORMATS.csv and docs/formats-master.csv. Do not edit by hand: change the source, then run the script.

Fennel Preview.

At a glance
Purpose Fennel source code: a Lisp that compiles to Lua.
Extensions .fnl
Poka parser poka-fennel
Viewer poka-metadata-card-viewer
Depth tier Metadata card (see Depth tiers)
Breadth tier B4 Summary (see Breadth tiers)

How much Poka reads

B4 Summary. The container and metadata are read and summarised (counts, properties, structure), but the main content is not rendered.

Confidence: medium (the reviewer read the code). Basis: Reviewed 2026-10-26: read parsers/poka-fennel/src/main.rs (269 lines) and plugin.json in full. The crate has no unit tests and no tests/samples.rs, and the corpus has no .fnl sample, so the tier rests on reading the code. Covers .fnl. The output is a metadata card of counts found by matching text line by line: fn and lambda forms, local, var, global and set, let, loops, control-flow forms, macros, required modules, comment lines, the maximum paren depth and likely docstrings. Judgement: B4, because the structure is summarised but the source itself is never shown.

What Poka does not read

  • The source text is not shown: the card carries only counts and a few sample names, with no code view or highlighting
  • Constructs are found by matching text line by line, not by parsing, so multi-line declarations, nested or indented definitions and keywords inside strings or comments can be miscounted
  • Counts of named items stop where their name list is capped (fns at 32, locals at 32, vars at 16, globals at 16, require modules at 16), so a larger file under-reports them
  • Files over 32 MiB are cut to the first 32 MiB (the card says so)
  • Text that is not UTF-8 is decoded with replacement characters; no other encoding is tried

Libraries

Libraries Poka uses or has assessed for this format, with the status, licence and language the registry records.

  • tree-sitter-fennel (candidate; MIT; unknown; https://github.com/travonted/tree-sitter-fennel) — Tree-sitter grammar for Fennel (so a generated parser usable from Rust via tree-sitter); repo language breakdown and last activity were not visible.

Sources

  • parsers/poka-fennel/src/main.rs
  • parsers/poka-fennel/plugin.json