#!/usr/bin/env sh
# compat: +ash +bash +dash +zsh

xxp() { ### @-
    ### act like `xxd -p`, but nicely formatted.
    ###
    ### **TODO:** support `-r` (reverse) argument.
    ###
    ### ```
    ### $ xxd -p ~/rc/install | head -n2
    ### 23212f7573722f62696e2f656e762073680a232074686973207363726970
    ### 7420697320636f6d70617469626c65207769746820666f6c6c6f77696e67
    ### $ xxp ~/rc/install | head -n2
    ### 23 21 2F 75 73 72 2F 62 69 6E 2F 65 6E 76 20 73
    ### 68 0A 23 20 74 68 69 73 20 73 63 72 69 70 74 20
    ### ```

    hexdump -v -e '15 1 "%02X " 1 1 " %02X\n"' -- "$@"
}

[ -n "${preload+-}" ] || xxp "$@"