# (C) 2010 magicant

# Completion script for the "comm" command.
# Supports POSIX 2008, GNU coreutils 8.4, FreeBSD 8.1, OpenBSD 4.8, NetBSD 5.0,
# Mac OS X 10.6.3, SunOS 5.10, HP-UX 11i v3.

function completion/comm {

        case $("${WORDS[1]}" --version 2>/dev/null) in
                (*'coreutils'*) typeset type=GNU ;;
                (*)             typeset type="$(uname 2>/dev/null)" ;;
        esac
        case $type in
                (GNU) typeset long=true ;;
                (*)   typeset long= ;;
        esac

        typeset OPTIONS POSIXOPTIONS ADDOPTIONS ARGOPT PREFIX
        POSIXOPTIONS=( #>#
        "1; don't print column of lines unique to file 1"
        "2; don't print column of lines unique to file 2"
        "3; don't print column of lines common to both files"
        ) #<#

        ADDOPTIONS=()
        case $type in
        (GNU)
                ADDOPTIONS=("$ADDOPTIONS" #>#
                "--check-order; check if files are correctly sorted"
                "--nocheck-order; don't check if files are correctly sorted"
                "--output-delimiter:; specify a delimiter to separate columns"
                "--help"
                "--version"
                ) #<#
                ;;
        (OpenBSD|NetBSD)
                ADDOPTIONS=("$ADDOPTIONS" #>#
                "f; case-insensitive comparison"
                ) #<#
                ;;
        (FreeBSD|Darwin)
                ADDOPTIONS=("$ADDOPTIONS" #>#
                "i; case-insensitive comparison"
                ) #<#
                ;;
        esac

        OPTIONS=("$POSIXOPTIONS" "$ADDOPTIONS")
        unset POSIXOPTIONS ADDOPTIONS

        command -f completion//parseoptions ${long:+-es}
        case $ARGOPT in
        (-)
                command -f completion//completeoptions
                ;;
        (--output-delimiter)
                ;;
        (*)
                complete -f
                ;;
        esac

}


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