#
# zsh-based conversion between numeric bases
#
# Copyright © 1994–2017 martin f. krafft <madduck@madduck.net>
# Released under the terms of the Artistic Licence 2.0
#
# Source repository: http://git.madduck.net/v/etc/zsh.git
#

function baseconv() {
  if [ $# -ne 3 ]; then
    echo Usage: ${0##*/} ibase obase number
    return 1
  fi

  typeset -li $2 var
  eval ((var=${1}#${3}))
  echo ${var#*\#}
}

typeset -lA bases=(b 2 o 8 d 10 h 16)
typeset -l {k,v}{1,2}
for k1 v1 in ${(kv)bases}; do
  for k2 v2 in ${(kv)bases}; do
    [[ $k1 == $k2 ]] && continue
    eval alias ${k1}2${k2}="'baseconv $v1 $v2'"
  done
done