#!/usr/bin/env zsh
##? fnhelp - use '##?' comments in function files as help docs.
##?
##? usage: fnhelp <func>

local ZFUNCDIR="${ZFUNCDIR:-${ZDOTDIR:-~/.config/zsh}/functions}"

if [[ $# -eq 0 ]]; then
  echo >&2 "no function specified"
  fnhelp fnhelp
  return 1
fi

if [[ ! -f "$ZFUNCDIR/$1" ]]; then
  echo >&2 "fnhelp: function not found '$1'." && return 1
fi

command grep "^##?" "$ZFUNCDIR/$1" | cut -c 5-