Module hook 

Per-keystroke hook logic, centralising what each shell template used to re-implement in bash/zsh/pwsh/clink/nu. The goal is that shells provide a thin “buffer + cursor in, eval-able string out” adapter and all the real expansion logic — command-position detection, token extraction, cursor placeholder handling, shell escaping — lives here in Rust.

Enums

HookAction

Outcome of a hook call — what the shell adapter should do to its buffer.

Functions

hook

Core hook entry point, shell-agnostic.

is_command_position

Returns true when the characters to the left of the token we’re about to consider represent a position where a fresh command name is expected.

render_action

Render a HookAction into a shell-specific eval-able string. The shell integration script consumes this verbatim via eval (or equivalent).