# bash completion for perl

have perl &&
{
_perlmodules()
{
    COMPREPLY=( $( compgen -P "$prefix" -W "$( ${BASH_SOURCE[0]%/*}/helpers/perl modules $cur )" -- "$cur" ) )
    __ltrim_colon_completions "$1"
}

_perlfunctions()
{
    COMPREPLY=( $( compgen -P "$prefix" -W "$( ${BASH_SOURCE[0]%/*}/helpers/perl functions $cur )" -- "$cur" ) )
}

_perl()
{
    local cur prev prefix temp
    local optPrefix optSuffix

    COMPREPLY=()
    _get_comp_words_by_ref -n : cur prev
    prefix=""

    # If option not followed by whitespace, reassign prev and cur
    if [[ "$cur" == -?* ]]; then
        temp=$cur
        prev=${temp:0:2}
        cur=${temp:2}
        optPrefix=-P$prev
        optSuffix=-S/
        prefix=$prev
    fi

    # only handle module completion for now
    case $prev in
        -I|-x)
            local IFS=$'\n'
            _compopt_o_filenames
            COMPREPLY=( $( compgen -d $optPrefix $optSuffix -- "$cur" ) )
            return 0
            ;;
        -m|-M)
            _perlmodules "$cur"
            return 0
            ;;
    esac

    if [[ "$cur" == -* ]]; then
        COMPREPLY=( $( compgen -W '-C -s -T -u -U -W -X -h -v -V -c -w -d \
            -D -p -n -a -F -l -0 -I -m -M -P -S -x -i -e ' -- "$cur" ) )
    else
        _filedir
    fi
}
complete -F _perl -o nospace perl

_perldoc()
{
    local cur prev prefix temp

    COMPREPLY=()
    _get_comp_words_by_ref -n : cur prev
    prefix=""

    # completing an option (may or may not be separated by a space)
    if [[ "$cur" == -?* ]]; then
        temp=$cur
        prev=${temp:0:2}
        cur=${temp:2}
        prefix=$prev
    fi

    # complete builtin perl functions
    case $prev in
        -f)
            _perlfunctions "$cur"
             return 0
            ;;
    esac

    if [[ "$cur" == -* ]]; then
        COMPREPLY=( $( compgen -W '-h -v -t -u -m -l -F -X -f -q' -- "$cur" ))
    else
        # return available modules (unless it is clearly a file)
        if [[ "$cur" != */* ]]; then
            _perlmodules "$cur"
            COMPREPLY=( "${COMPREPLY[@]}" $( compgen -W \
                '$( PAGER=/bin/cat man perl |  \
                sed -ne "/perl.*Perl overview/,/perlwin32/p" | \
                awk "\$NF=2 { print \$1}" | command grep perl )' -- "$cur" ) )
        fi
        _filedir '@(pl|PL|pm|PM|pod|POD)'
    fi
}
complete -F _perldoc -o bashdefault perldoc
}

# Local variables:
# mode: shell-script
# sh-basic-offset: 4
# sh-indent-comment: t
# indent-tabs-mode: nil
# End:
# ex: ts=4 sw=4 et filetype=sh