jetrocli

Interactive split-pane TUI for jetro — paste JSON, write expressions, see results live. Built on ratatui + crossterm.

Features

• Live evaluation — expression re-runs on every keystroke.
• Syntax-highlighted JSON result with pretty-print (strings, numbers, keys, booleans, null distinct).
• Structural folding in JSON editor. Fold any {…} / […] block, with gutter triangles (▾ / ▸) and inline ⋯ N lines markers.
• Schema-aware completion — suggests fields at the current path, auto-unwraps element fields inside array chains, filters builtins by receiver type.
• Inline docs pane next to completions — every jetro builtin ships with signature, summary, and example.
• Emacs-style bindings throughout (C-a/C-e, C-f/C-b, M-f/M-b, C-n/C-p, C-g, C-c prefix chord).
• Expression formatter — breaks long jetro chains onto indented lines (C-c C-f).

Install

git clone https://github.com/mitghi/jetrocli
cd jetrocli
cargo build --release

Binary lands at target/release/jetrocli.

Usage

jetrocli                            # sample document
jetrocli -i data.json               # load from file
jetrocli -i data.json -e '$.users'  # pre-fill expression

License

MIT