#!/bin/sh -e
# differences between man-db and mandoc apropos(1) make it more
# difficult to parse

# thanks go to opal

length="$(apropos . \
  | sed -r -e's/ ?\(/(/' \
  | sed 's/^/man:/g' \
  | cut '-d ' -f1 \
  | tr -c ' \n' '_' \
  | sort \
  | tail -n1 \
  | wc -c)"

apropos . \
  | sed -r -e's/ ?\(/(/' \
  | sed 's/^/man:/g' \
  | tr -s ' ' \
  | sed 's/ /\t/' \
  | spacify "${length}"