hook_functions.zsh

#!/usr/bin/env zsh

hooks=(chpwd periodic precmd preexec zshaddhistory zshexit)

for hook in $hooks; do
  # First eval the hook function, stored as string
  eval "hook_func_str=$\"${hook}_functions\""
  # [expansion rule](http://zsh.sourceforge.net/Doc/Release/Expansion.html#Rules)
  # [Parameter expansion flags](http://zsh.sourceforge.net/Doc/Release/Expansion.html#Parameter-Expansion-Flags)
  eval "hookfunc=\"${hook_func_str}\""
  # Make an array out of the string

  hookfunc=( ${(s/ /)${hookfunc}} )
  # print ${(t)hookfunc}, $#hookfunc, $hookfunc[1]

  # Print only the non empty arrays
  if [ $#hookfunc != 0 ]; then 
    echo $hook
    for fun in $=hookfunc; do
      print "| $fun"
    done
  fi

done