This repository exists to standardize a variant of --help output for
command-line programs, which:
The intention is for such output to be used by the shell's tab completion logic, by static analyzers of shell scripts, and so on.
We envision that a package manager would install
a /usr/share/cli-grammar/rsync.grammar file alongside the /usr/bin/rsync binary,
and shells would parse that file instead of hardcoding the list of options
rsync takes in their completion functions (such as
/usr/share/bash-completion/completions/rsync or
/usr/share/zsh/functions/Completion/Unix/_rsync).
The .grammar file would be generated by the (upstream) package's build process.