#!/usr/bin/env bash
# Parse hledger's help and output all commands and command aliases in
# parenthesis. Do not output single letter command aliases, it's not useful.
set -euo pipefail

declare commands_help
commands_help=$(hledger)
{
    sed -rn 's/^\s+([a-z][-a-z]+)\s+.*/\1/p' <<< "$commands_help"
    sed -rn 's/^\s+[a-z][-a-z]+\s+\(([a-z][ ,a-z]+)\).*/\1/p' <<< "$commands_help" |
    sed 's/\s*,\s*/\n/g' |
    sed '/^.$/d'
} | sed '/^hledger/d' | sort -u