bash-completion/bash_completion

#   bash_completion - some programmable completion functions for bash 2.05b
#
#   $Id: bash_completion,v 1.507 2003/01/09 11:44:29 ianmacd Exp $
#
#   Copyright (C) Ian Macdonald <ian@caliban.org>
#
#   This program is free software; you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation; either version 2, or (at your option)
#   any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program; if not, write to the Free Software Foundation,
#   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

# RELEASE: 20021231

[ -n "${DEBUG:-}" ] && set -v || set +v

# Alter the following to reflect the location of this file
#
declare -r BASH_COMPLETION=${BASH_COMPLETION:-/etc/bash_completion} 2>/dev/null
declare -r BASH_COMPLETION_DIR=${BASH_COMPLETION_DIR:=/etc/bash_completion.d} 2>/dev/null

# Set a couple of useful vars
#
UNAME=$( uname -s )
RELEASE=$( uname -r )
if [ ${BASH_VERSINFO[1]} '>' 04 ]; then
	default="-o default"
	dirnames="-o dirnames"
	filenames="-o filenames"
fi
[ ${BASH_VERSINFO[1]} = "05b" ] && nospace="-o nospace" || nospace=""

# Turn on extended globbing and programmable completion
shopt -s extglob progcomp

# A lot of the following one-liners were taken directly from the
# completion examples provided with the bash 2.04 source distribution

# Make directory commands see only directories
complete -d pushd

# The following section lists completions that are redefined later
# Do NOT break these over multiple lines.
#
# START exclude -- do NOT remove this line
complete -f -X '!*.?(t)bz2' bunzip2 bzcat bzcmp bzdiff bzegrep bzfgrep bzgrep
complete -f -X '!*.@(zip|ZIP|jar|JAR|exe|EXE|pk3|war|wsz|ear|zargo)' unzip zipinfo
complete -f -X '*.Z' compress znew
complete -f -X '!*.@(Z|gz|tgz|Gz|dz)' gunzip zcmp zdiff zcat zegrep zfgrep zgrep zless zmore
complete -f -X '!*.Z' uncompress
complete -f -X '!*.@(gif|jp?(e)g|tif?(f)|pn[gm]|p[bgp]m|bmp|xpm|ico|xwd|GIF|JPG|JP?(E)G|TIF?(F)|PN[GM]|P[BGP]M|BMP|XPM|ICO|XWD)' ee display
complete -f -X '!*.@(gif|jp?(e)g|tif?(f)|png|p[bgp]m|bmp|x[bp]m|rle|rgb|pcx|fits|pm|GIF|JPG|JP?(E)G|TIF?(F)|PNG|P[BGP]M|BMP|X[BP]M|RLE|RGB|PCX|FITS|PM)' xv qiv
complete -f -X '!*.@(@(?(e)ps|?(E)PS|pdf|PDF)?(.gz|.GZ|.Z))' gv ggv
complete -f -X '!*.@(dvi|DVI)?(.@(gz|Z|bz2))' xdvi
complete -f -X '!*.@(dvi|DVI)' dvips dviselect dvitype
complete -f -X '!*.@(pdf|PDF)' acroread xpdf
complete -f -X '!*.texi*' makeinfo texi2html
complete -f -X '!*.@(?(la)tex|?(LA)TEX|texi|TEXI|dtx|DTX|ins|INS)' tex latex slitex jadetex pdfjadetex pdftex pdflatex texi2dvi
complete -f -X '!*.@(mp3|MP3)' mpg123 mpg321
complete -f -X '!*.@(mpg|mpeg|MPG|MPEG|wma|avi|AVI|asf|vob|bin|vcd|ps|pes|fli|viv|rm|ram|yuv|mov|wmv|mp3|MP3|ogg|OGG|ogm|OGM|mp4|MP4)' xine
complete -f -X '!*.@(avi|asf|wmv)' aviplay
complete -f -X '!*.@(rm|ram|smi?(l))' realplay
complete -f -X '!*.@(mpg|mpeg|avi|mov)' xanim
complete -f -X '!*.@(ogg|OGG)' ogg123
complete -f -X '!*.@(mp3|MP3|ogg|OGG|pls|m3u)' gqmpeg freeamp
complete -f -X '!*.@(mp3|MP3|ogg|OGG|wav|WAV|pls|m3u|xm|mod|s[3t]m|it|mtm|ult|flac)' xmms
complete -f -X '!*.fig' xfig
complete -f -X '!*.@(mid?(i))' timidity playmidi
complete -f -X '*.@(o|so|so.!(conf)|a|tar|tgz|tbz2|rpm|zip|ZIP|gif|GIF|jp?(e)g|JP?(E)G|mp3|MP3|mpg|MPG|avi|AVI|asf|ASF|ogg|OGG)' vi vim gvim emacs
complete -f -X '!*.@(exe|EXE|com|COM|scr|SCR)' wine
complete -f -X '!*.@(zip|ZIP|z|Z|gz|GZ|tgz|TGZ)' bzme
complete -f -X '!*.@(?(x)htm?(l))' netscape mozilla lynx opera w3m galeon curl dillo elinks
# FINISH exclude -- do not remove this line

# start of section containing compspecs that can be handled within bash

# user commands see only users
complete -u su usermod userdel passwd chage write chfn groups

# group commands see only groups
[ ${BASH_VERSINFO[1]} '>' 04 ] &&
	complete -g groupmod groupdel newgrp 2>/dev/null

# bg completes with stopped jobs
complete -A stopped -P '%' bg

# other job commands
complete -j -P '%' fg jobs disown

# readonly and unset complete with shell variables
complete -v readonly unset

# set completes with set options
complete -A setopt set

# shopt completes with shopt options
complete -A shopt shopt

# helptopics
complete -A helptopic help

# unalias completes with aliases
complete -a unalias

# bind completes with readline bindings (make this more intelligent)
complete -A binding bind

# type and which complete on commands
complete -c command type which

# start of section containing completion functions called by other functions

# This function checks whether we have a given programs on the system.
# No need for bulky functions in memory if we don't.
#
have()
{
	unset -v have
	type $1 &> /dev/null && have="yes"
}

# use GNU sed if we have it, since its extensions are still used in our code
#
[ $UNAME != Linux ] && have gsed && alias sed=gsed

# This function performs file and directory completion. It's better than
# simply using 'compgen -f', because it honours spaces in filenames.
# If passed -d, it completes only on directories. If passed anything else,
# it's assumed to be a file glob to complete on.
#
_filedir()
{
	local IFS=$'\t\n' xspec

	_expand || return 0

	if [ "${1:-}" = -d ]; then
		COMPREPLY=( ${COMPREPLY[@]:-} $( compgen -d -- $cur ) )
		return 0
	fi

	xspec=${1:+"!*.$1"}	# set only if glob passed in as $1
	COMPREPLY=( ${COMPREPLY[@]:-} $( compgen -f -X "$xspec" -- "$cur" )
		    $( compgen -d -- "$cur" ) )
}

# This function completes on signal names
#
_signals()
{
	local i

	# standard signal completion is rather braindead, so we need
	# to hack around to get what we want here, which is to
	# complete on a dash, followed by the signal name minus
	# the SIG prefix
	COMPREPLY=( $( compgen -A signal SIG${cur#-} ))
	for (( i=0; i < ${#COMPREPLY[@]}; i++ )); do
		COMPREPLY[i]=-${COMPREPLY[i]#SIG}
	done
}

# This function expands tildes in pathnames
#
_expand()
{
	[ "$cur" != "${cur%\\}" ] && cur="$cur\\"

	# expand ~username type directory specifications
	if [[ "$cur" == \~*/* ]]; then
		: eval cur=$cur
		
	elif [[ "$cur" == \~* ]]; then
		cur=${cur#\~}
		COMPREPLY=( $( compgen -P '~' -u $cur ) )
		return ${#COMPREPLY[@]}
	fi
}

# This function completes on process IDs
#
_pids()
{
	COMPREPLY=( $( compgen -W '$( command ps axo pid | sed 1d )' -- $cur ) )
}

# This function completes on process group IDs
#
_pgids()
{
	COMPREPLY=( $( compgen -W '$( command ps axo pgid | sed 1d )' -- $cur ))
}

# Linux ifconfig(8) and iwconfig(8) helper function
#
[ $UNAME = Linux ] && ( have ifconfig || have iwconfig ) &&
_ifwconfig()
{
	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	case "${COMP_WORDS[1]}" in
	-|*[0-9]*)
		#COMPREPLY=( $( compgen -W '${keywords[@]}' ) )
		COMPREPLY=( ${keywords[@]} )
		COMPREPLY=( $( echo " ${COMP_WORDS[@]}" | \
			       (while read -d ' ' i; do
				   [ "$i" == "" ] && continue
				   # flatten array with spaces on either side,
				   # otherwise we cannot grep on word
				   # boundaries of first and last word
				   COMPREPLY=" ${COMPREPLY[@]} "
				   # remove word from list of completions
				   COMPREPLY=( ${COMPREPLY/ $i / } )
				done
				echo ${COMPREPLY[@]})
			  ) )
		return 0
		;;
	esac

	COMPREPLY=( $( eval "$@" 2>/dev/null | \
			sed -ne 's|^\('$cur'[^ ]*\).*$|\1|p' ) )
}

# start of section containing completion functions for bash built-ins

# bash alias completion
#
_alias()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[$COMP_CWORD]}

	case "$COMP_LINE" in
	*[^=])
		COMPREPLY=( $( compgen -A alias -S '=' -- $cur ) )
		;;
	*=)
		COMPREPLY=( "$( alias ${cur%=} 2>/dev/null | \
			     sed -e 's|^alias '$cur'\(.*\)$|\1|' )" )
		;;
	esac
}
complete -F _alias alias

# bash export completion
#
_export()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[$COMP_CWORD]}

	case "$COMP_LINE" in
	*=\$*)
		COMPREPLY=( $( compgen -v -P '$' -- ${cur#*=\$} ) )
		;;
	*[^=])
		COMPREPLY=( $( compgen -v -S '=' -- $cur ) )
		;;
	*=)
		COMPREPLY=( $( eval echo $`echo ${cur%=}` ) )
		;;
	esac
}
complete -F _export $default $nospace export

# bash shell function completion
#
_function()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	if [[ $1 == @(declare|typeset) ]]; then
		if [ "$prev" = -f ]; then
			COMPREPLY=( $( compgen -A function -- $cur ) )
		elif [[ "$cur" == -* ]]; then
			COMPREPLY=( $( compgen -W '-a -f -F -i -r -x -p' -- \
				       $cur ) )
		fi
	elif [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $( compgen -A function -- $cur ) )
	else
		COMPREPLY=( "() $( type -- ${COMP_WORDS[1]} | sed -e 1,2d )" )
	fi
}
complete -F _function function declare typeset

# bash complete completion
#
_complete()
{
	local cur prev options

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case $prev in
		-o)
			options="default dirnames filenames"
			[ ${BASH_VERSINFO[1]} = "05b" ] && options="$options nospace"
			COMPREPLY=( $( compgen -W "$options" -- $cur ) )
			return 0
			;;

		-A)
			COMPREPLY=( $( compgen -W 'alias arrayvar binding \
				builtin command directory disabled enabled \
				export file function group helptopic hostname \
				job keyword running service setopt shopt \
				signal stopped user variable' -- $cur ) )
			return 0
			;;

		-C)
			COMPREPLY=( $( compgen -A command -- $cur ) )
			return 0
			;;
		-F)
			COMPREPLY=( $( compgen -A function -- $cur ) )
			return 0
			;;
		-@(p|r))
			COMPREPLY=( $( complete -p | sed -e 's|.* ||' | \
					grep "^$cur" ) )
			return 0
			;;

	esac

	if [[ "$cur" == -* ]]; then
		# relevant options completion
		options="-a -b -c -d -e -f -g -j -k -s -v -u -A -G -W -P -S -X -F -C"
		[ ${BASH_VERSINFO[1]} '>' 04 ] && options="$options -o"
		COMPREPLY=( $( compgen -W "$options" -- $cur ) )
	else
		COMPREPLY=( $( compgen -A command -- $cur ) )
	fi
}
complete -F _complete complete

# start of section containing completion functions for external programs

# chown(1) completion
#
_chown()
{
	local cur prev user group i

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	# options completion
	if [[ "$cur" == -* ]]; then
		COMPREPLY=( $( compgen -W '-c -h -f -R -v --changes \
		--dereference --no-dereference --from= --silent --quiet \
		--reference= --recursive --verbose --help --version' -- $cur ) )
		return 0
	fi

	# first parameter on line or first since an option?
	if [ $COMP_CWORD -eq 1 ] || [[ "$prev" == -* ]]; then
		if [[ "$cur" == [a-zA-Z]*[.:]* ]] && \
		   [ ${BASH_VERSINFO[1]} '>' 04 ]; then
			user=${cur%%?(\\)[.:]*}
			group=${cur#*[.:]}
			COMPREPLY=( $( compgen -P $user':' \
					-g -- $group 2>/dev/null) )
		else
			COMPREPLY=( $( compgen -S ':' -u $cur ) )
		fi
	else
		_filedir
	fi

	return 0
}
complete -F _chown $filenames chown

# chgrp(1) completion
#
_chgrp()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	# options completion
	if [[ "$cur" == -* ]]; then
		COMPREPLY=( $( compgen -W '-c -h -f -R -v --changes \
		--dereference --no-dereference --silent --quiet \
		--reference= --recursive --verbose --help --version' -- $cur ) )
		return 0
	fi

	# first parameter on line or first since an option?
	if [ $COMP_CWORD -eq 1 ] && [[ "$cur" != -* ]] || \
	   [[ "$prev" == -* ]]; then
		[ ${BASH_VERSINFO[1]} '>' 04 ] && \
			COMPREPLY=( $( compgen -g $cur 2>/dev/null) )
	else
		_expand || return 0
	fi

	return 0
}
complete -F _chgrp $default chgrp

# umount(8) completion. This relies on the mount point being the third
# space-delimited field in the output of mount(8)
#
_umount()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	COMPREPLY=( $( compgen -W '$( mount | cut -d" " -f 3 )' -- $cur ) )

	return 0
}
complete -F _umount $dirnames umount

# mount(8) completion. This will pull a list of possible mounts out of
# /etc/fstab, unless the word being completed contains a ':', which
# would indicate the specification of an NFS server. In that case, we
# query the server for a list of all available exports and complete on
# that instead.
#
_mount()
{       local cur i sm host

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	[[ "$cur" == \\ ]] && cur="/"

	for i in {,/usr}/{,s}bin/showmount; do [ -x $i ] && sm=$i && break; done

	if [ -n "$sm" ] && [[ "$cur" == *:* ]]; then
		COMPREPLY=( $( $sm -e ${cur%%:*} | sed 1d | \
			       grep ^${cur#*:} | awk '{print $1}' ) )
	elif [[ "$cur" == //* ]]; then
		host=${cur#//}
		host=${host%%/*}
		if [ -n $host ]; then
			COMPREPLY=( $( compgen -W "$( echo $( smbclient -d 0 -NL $host |
			sed -ne '/^['$'\t '']*Sharename/,/^$/p' |
			sed -ne '3,$s|^[^A-Za-z]*\([^'$'\t '']*\).*$|//'$host'/\1|p' ) )" -- "$cur" ) )
		fi
	else
		COMPREPLY=( $( awk '! /^[ \t]*#/ {if ($2 ~ /\//) print $2}' /etc/fstab | \
			       grep "^$cur" ) )
	fi

	return 0
}
complete -F _mount $default mount

# Linux rmmod(8) completion. This completes on a list of all currently
# installed kernel modules.
#
have rmmod && {
_rmmod()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	COMPREPLY=( $( /sbin/lsmod | \
		  awk '{if (NR != 1 && $1 ~ /^'$cur'/) print $1}' 2>/dev/null ))
	return 0
}
complete -F _rmmod rmmod

# Linux insmod(8) & modprobe(8) completion. This completes on a list of all
# available modules for the version of the kernel currently running.
#
_insmod()
{
	local cur prev modpath

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}
	modpath=/lib/modules/`uname -r`

	# behave like lsmod for modprobe -r
	if [ $1 = "modprobe" ] &&
	   [ "${COMP_WORDS[1]}" = "-r" ]; then
		COMPREPLY=( $( /sbin/lsmod | \
				awk '{if (NR != 1 && $1 ~ /^'$cur'/) print $1}' ) )
		return 0
	fi

	# do filename completion if we're giving a path to a module
	if [[ "$cur" == ?(.|..)/* ]]; then
		_filedir
		return 0
	fi

	if [ $COMP_CWORD -gt 1 ]; then
		# do module parameter completion
		COMPREPLY=( $( /sbin/modinfo -p ${COMP_WORDS[1]} 2>/dev/null | \
		       awk '{if ($1 ~ /^parm:/ && $2 ~ /^'$cur'/) { print $2 } \
			else if ($1 !~ /:/ && $1 ~ /^'$cur'/) { print $1 }}' ) )
	elif [ -r $modpath -a -x $modpath ]; then
		# do module name completion
		COMPREPLY=( $( command ls -R $modpath | \
				sed -ne 's/^\('$cur'.*\)\.o\(\|.gz\)$/\1/p') )
	else 
		_filedir
	fi

	return 0
}
complete -F _insmod $filenames insmod modprobe
}

# man(1) completion. This is GNU, GNU/Linux and Darwin specific, in that
# 'man <section> <page>' is the expected syntax.
#
[ $UNAME = GNU -o $UNAME = Linux -o $UNAME = Darwin -o $UNAME = FreeBSD ] &&
_man()
{
	local cur prev sect manpath UNAME

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	_expand || return 0

	# default completion if parameter contains /
	if [[ "$cur" == */* ]]; then
		_filedir
		return 0
	fi

	UNAME=$( uname -s )
	if [ $UNAME = GNU -o $UNAME = Linux -o $UNAME = FreeBSD ]; then
		manpath=$( manpath 2>/dev/null || command man --path )
	else
		manpath=$MANPATH
	fi

	if [ -z "$manpath" ]; then
		COMPREPLY=( $( compgen -c -- $cur ) )
		return 0
	fi

	# determine manual section to search
	[[ "$prev" == [0-9ln] ]] && sect=$prev || sect='?'

	manpath=$manpath:
	if [ -n "$cur" ]; then
		manpath="${manpath//://man$sect/$cur* }"
	else
		manpath="${manpath//://man$sect/ }"
	fi
		
	# redirect stderr for when path doesn't exist
	COMPREPLY=( $( eval command ls "$manpath" 2>/dev/null ) )
	# weed out directory path names and paths to man pages
	COMPREPLY=( ${COMPREPLY[@]##*/?(:)} )
	# strip suffix from man pages
	COMPREPLY=( ${COMPREPLY[@]%.@(gz|bz2)} )
	COMPREPLY=( $( compgen -W '${COMPREPLY[@]%.*}' -- "${cur//\\\\/}" ) )

	[[ "$prev" != [0-9ln] ]] && _filedir '[0-9ln]'

	return 0
}
[ $UNAME = GNU -o $UNAME = Linux -o $UNAME = Darwin -o $UNAME = FreeBSD ] &&
  complete -F _man $filenames man

# renice(8) completion
#
_renice()
{
	local command cur curopt i

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	command=$1

	i=0
	# walk back throuh command line and find last option
	while [ $i -le $COMP_CWORD -a ${#COMPREPLY[@]} -eq 0 ]; do
		curopt=${COMP_WORDS[COMP_CWORD-$i]}
		case "$curopt" in
		-u)
			COMPREPLY=( $( compgen -u -- $cur ) )
			;;
		-g)
			_pgids
			;;
		-p|$command)
			_pids
			;;
		esac
		i=$(( ++i ))
	done
}
complete -F _renice renice

# kill(1) completion
#
_kill()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD -eq 1 ] && [[ "$cur" == -* ]]; then
		# return list of available signals
		_signals
	else
		# return list of available PIDs
		_pids
	fi
}
complete -F _kill kill

# Linux and FreeBSD killall(1) completion.
#
[ $UNAME = Linux -o $UNAME = FreeBSD ] &&
_killall()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD -eq 1 ] && [[ "$cur" == -* ]]; then
		_signals
	else
		COMPREPLY=( $( compgen -W '$( command ps axo ucomm | sed 1d )' \
			       -- $cur ) )
	fi

	return 0
}
[ $UNAME = Linux -o $UNAME = FreeBSD ] && complete -F _killall killall

# GNU find(1) completion. This makes heavy use of ksh style extended
# globs and contains Linux specific code for completing the parameter
# to the -fstype option.
#
_find()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
	-@(max|min)depth)
		COMPREPLY=( $( compgen -W '0 1 2 3 4 5 6 7 8 9' -- $cur ) )
		return 0
		;;
	-?(a)newer|-fls|-fprint?(0|f)|-?(i)?(l)name)
		_filedir
		return 0
		;;
	-fstype)
		# this is highly non-portable
		COMPREPLY=( $( cut -d$'\t' -f 2 /proc/filesystems | \
				grep "^$cur" ) )
		return 0
		;;
	-gid)
		COMPREPLY=( $( awk 'BEGIN {FS=":"} \
				{if ($3 ~ /^'$ncur'/) print $3}' /etc/group ) )
		return 0
		;;
	-group)
		[ ${BASH_VERSINFO[1]} '>' 04 ] && \
			COMPREPLY=( $( compgen -g -- $cur 2>/dev/null) )
		return 0
		;;
	-?(x)type)
		COMPREPLY=( $( compgen -W 'b c d p f l s' -- $cur ) )
		return 0
		;;
	-uid)
		COMPREPLY=( $( awk 'BEGIN {FS=":"} \
				{if ($3 ~ /^'$ncur'/) print $3}' /etc/passwd ) )
		return 0
		;;
	-user)
		COMPREPLY=( $( compgen -u -- $cur ) )
		return 0
		;;
	-[acm]min|-[acm]time|-?(i)?(l)name|-inum|-?(i)path|-?(i)regex| \
	-links|-perm|-size|-used|-exec|-ok|-printf)
		# do nothing, just wait for a parameter to be given
		return 0
		;;
	esac

	_expand || return 0

	# handle case where first parameter is not a dash option
	if [ $COMP_CWORD -eq 1 ] && [[ "$cur" != -* ]]; then
		_filedir -d
		return 0
	fi

	# complete using basic options
	COMPREPLY=( $( compgen -W '-daystart -depth -follow -help -maxdepth \
			-mindepth -mount -noleaf -version -xdev -amin -anewer \
			-atime -cmin -cnewer -ctime -empty -false -fstype \
			-gid -group -ilname -iname -inum -ipath -iregex \
			-links -lname -mmin -mtime -name -newer -nouser \
			-nogroup -perm -regex -size -true -type -uid -used \
			-user -xtype -exec -fls -fprint -fprint0 -fprintf -ok \
			-print -print0 -printf -prune -ls' -- $cur ) )

	# this removes any options from the list of completions that have
	# already been specified somewhere on the command line.
	COMPREPLY=( $( echo "${COMP_WORDS[@]}" | \
		       (while read -d ' ' i; do
			    [ "$i" == "" ] && continue
			    # flatten array with spaces on either side,
			    # otherwise we cannot grep on word boundaries of
			    # first and last word
			    COMPREPLY=" ${COMPREPLY[@]} "
			    # remove word from list of completions
			    COMPREPLY=( ${COMPREPLY/ ${i%% *} / } )
			done
			echo ${COMPREPLY[@]})
		  ) )
	
	return 0
}
complete -F _find $filenames find

# Linux ifconfig(8) completion
#
[ $UNAME = Linux ] && have ifconfig &&
_ifconfig()
{
	local cur
	local -a keywords=( -a up down arp promisc allmulti metric mtu dstaddr \
			    netmask add del tunnel irq io_addr mem_start media \
			 broadcast pointopoint hw multicast address txqueuelen )

	_ifwconfig ifconfig -a

	COMPREPLY=( $( compgen -W '${COMPREPLY[@]}' -- $cur ) )
}
[ $UNAME = Linux ] && have ifconfig && complete -F _ifconfig ifconfig

# Linux iwconfig(8) completion
#
[ $UNAME = Linux ] && have iwconfig &&
_iwconfig()
{
	local -a keywords=( essid nwid domain freq channel sens mode ap nick \
			    rate bit rts frag key enc power )

	_ifwconfig iwconfig

	COMPREPLY=( $( compgen -W '${COMPREPLY[@]}' -- $cur ) )
}
[ $UNAME = Linux ] && complete -F _iwconfig iwconfig

# RedHat & Debian GNU/Linux if{up,down} completion
#
[ $UNAME = Linux ] && ( have ifup || have ifdown ) &&
_ifupdown()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD -eq 1 ]; then
		if [ -f /etc/debian_version ]; then
			# Debian system
			COMPREPLY=( $( sed -ne 's|^iface \([^ ]\+\).*$|\1|p' \
				       /etc/network/interfaces ) )
		else
			# Assume Red Hat
			COMPREPLY=( $( command ls \
				/etc/sysconfig/network-scripts/ifcfg-* | \
				sed -ne 's|.*ifcfg-\('$cur'.*\)|\1|p' ) )
		fi
       fi

       return 0
}
[ $UNAME = Linux ] && have ifup && complete -F _ifupdown ifup ifdown

# Linux ipsec(8) completion (for FreeS/WAN)
#
[ $UNAME = Linux ] && have ipsec &&
_ipsec()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	
	if [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $( compgen -W 'auto barf eroute klipsdebug look \
					   manual pluto ranbits rsasigkey \
					   setup showdefaults showhostkey spi \
					   spigrp tncfg whack' $cur ) )
		return 0
	fi

	case ${COMP_WORDS[1]} in
	auto)
		COMPREPLY=( $( compgen -W '--asynchronous --up --add --delete \
					   --replace --down --route --unroute \
					   --ready --status --rereadsecrets' \
					$cur ) )
		;;
	manual)
		COMPREPLY=( $( compgen -W '--up --down --route --unroute \
					   --union' $cur ) )
		;;
	ranbits)
		COMPREPLY=( $( compgen -W '--quick --continuous --bytes' $cur ) )
		;;
	setup)
		COMPREPLY=( $( compgen -W '--start --stop --restart' $cur ) )
		;;

	*)
		;;
	esac

	return 0
}
[ $UNAME = Linux ] && [ -n "${have:-}" ] && complete -F _ipsec ipsec

# Postfix completion.
#
have postfix && {
# postfix(1)
#
_postfix()
{
	COMPREPLY=( $( compgen -W 'start stop reload abort flush check' -- \
		"${COMP_WORDS[COMP_CWORD]}" ) )
}
complete -F _postfix postfix

# postalias(1) and postmap(1)
#
_postmap()
{
	local cur prev len idx

	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	if [[ $cur == '-' ]]; then
		COMPREPLY=(-N -f -i -n -o -r -v -w -c -d -q)
		return 0
	fi
	if [[ $prev == '-c' ]]; then
		_filedir -d
		return 0
	fi
	if [[ $prev == -[dq] ]]; then
		return 0
	fi

	if [[ "$cur" == *:* ]]; then
	       	COMPREPLY=( $( compgen -f -- ${cur#*:} ) )
	else
		len=${#cur}
		idx=0
		for pval in $( postconf -m ); do
			if [[ "$cur" == "${pval:0:$len}" ]]; then
				COMPREPLY[$idx]="$pval:"
				idx=$(($idx+1))
			fi
		done
		if [[ $idx -eq 0 ]]; then
			COMPREPLY=( $( compgen -f -- "$cur" ) )
		fi
	fi
	return 0
}
complete -F _postmap postmap postalias

# postconf(1)
#
_postconf()
{
	local cur prev len idx eqext

	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}
	if [[ $cur == '-' ]]; then
		COMPREPLY=(-c -d -e -h -m -l -n -v)
		return 0
	fi
	if [[ $prev == '-c' ]]; then
		_filedir -d
		return 0
	fi
	if [[ $prev == '-e' ]]; then
		cur=${cur#[\"\']}
		eqext='='
	fi
	len=${#cur}
	idx=0
	for pval in $( postconf | cut -d ' ' -f 1 ); do
		if [[ "$cur" == "${pval:0:$len}" ]]; then
			COMPREPLY[$idx]="$pval$eqext"
			idx=$(($idx+1))
		fi
	done
	return 0
}
complete -F _postconf postconf

# postsuper(1)
#
_postsuper()
{
	local cur prev len idx

	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	if [[ $cur == '-' ]]; then
		COMPREPLY=(-d -p -r -s -v)
		return 0
	fi
	if [[ $prev == -[dr] ]]; then
		len=${#cur}
		idx=0
		for pval in $( mailq | \
			sed -e '1d; $d; /^[^0-9A-Z]\|^$/d; s/[* ].*$//' ); do
			if [[ "$cur" == "${pval:0:$len}" ]]; then
				COMPREPLY[$idx]=$pval
				idx=$(($idx+1))
			fi
		done
		return 0
	fi
	_filedir -d
	return 0
}
complete -F _postsuper postsuper
}

# cvs(1) completion
#
have cvs && {
set_prefix()
{
	[ -z ${prefix:-} ] || prefix=${cur%/*}/
	[ -r ${prefix:-}CVS/Entries ] || prefix=""
}

get_entries()
{
	[ -r ${prefix:-}CVS/Entries ] && \
	entries=( $( compgen -W \
		"$( echo $( cut -d/ -f2 -s ${prefix}CVS/Entries ) )" -- $cur ) )
}

get_modules()
{
	if [ -n "$prefix" ]; then 
		COMPREPLY=( $( command ls -d ${cvsroot}/${prefix}/!(CVSROOT) ) )
	else
		COMPREPLY=( $( command ls -d ${cvsroot}/!(CVSROOT) ) )
	fi
}

_cvs()
{
	local cur count mode i cvsroot pwd
	local -a flags miss files entries changed newremoved

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	count=0
	for i in ${COMP_WORDS[@]}; do
		[ $count -eq $COMP_CWORD ] && break
		if [ -z "$mode" ]; then
			case $i in
			-d)
				cvsroot=${COMP_WORDS[((count+1))]}
				;;
			@(add|new))
				mode=add
				;;
			@(admin|rcs))
				mode=admin
				;;
			@(checkout|co|get))
				mode=checkout
				;;
			@(commit|ci))
				mode=commit
				;;
			@(annotate|diff|@(ex|im)port|history|release|status|update|edit|unedit))
				mode=$i
				;;
			?(r)log)
				mode=log
				;;
			@(rdiff|patch))
				mode=rdiff
				;;
			@(remove|rm|delete))
				mode=remove
				;;
			@(rtag|rfreeze))
				mode=rtag
				;;
			@(tag|freeze))
				mode=tag
				;;
			*)
				;;
			esac
		elif [[ "$i" = -* ]]; then
			flags=( ${flags[@]} $i )
		fi
		count=$((++count))
	done

	case "$mode" in
	add)
		if [[ "$cur" != -* ]]; then
			set_prefix
			if [ $COMP_CWORD -gt 1 -a -r ${prefix}CVS/Entries ]; then
				get_entries
				[ -z "$cur" ] && \
				files=$( command ls -Ad !(CVS) ) || \
				files=$( command ls -d ${cur}* 2>/dev/null )
				for i in ${entries[@]}; do
					files=( ${files[@]/#$i//} )
				done
				COMPREPLY=( $( compgen -W '${files[@]}' -- \
					       $cur ) )
			fi
		else
			COMPREPLY=( $( compgen -W '-k -m' -- $cur ) )
		fi
		;;
	admin)
		if [[ "$cur" = -* ]]; then
			COMPREPLY=( $( compgen -W '-i -a -A -e -b -c -k -l -u \
						   -L -U -m -M -n -N -o -q -I \
						   -s -t -t- -T -V -x -z' -- \
					$cur ) )
		fi
		;;
	checkout)
		if [[ "$cur" != -* ]]; then
			[ -z "$cvsroot" ] && cvsroot=$CVSROOT
			COMPREPLY=( $( cvs -d "$cvsroot" co -c | awk '{print $1}' ) )
			COMPREPLY=( $( compgen -W '${COMPREPLY[@]}' -- $cur ) )
		else
			COMPREPLY=( $( compgen -W '-A -N -P -R -c -f -l -n -p \
						  -s -r -D -d -k -j' -- $cur ) )
		fi
		;;
	commit)
		set_prefix

		if [[ "$cur" != -* ]] && [ -r ${prefix}CVS/Entries ]; then
			# if $COMP_CVS_REMOTE is not null, 'cvs commit' will
			# complete on remotely checked-out files (requires
			# passwordless access to the remote repository
			if [ -n "$COMP_CVS_REMOTE" ]; then
				# this is the least computationally intensive
				# way found so far, but other changes
				# (something other than changed/removed/new)
				# may be missing
				changed=( $( cvs diff --brief 2>&1 | \
				sed -ne 's/^Files [^ ]* and \([^ ]*\) differ$/\1/p' ) )
				newremoved=( $( cvs diff --brief 2>&1 | \
				sed -ne 's/^cvs diff: \([^ ]*\) .*, no comparison available$/\1/p' ) )
				COMPREPLY=( $( compgen -W '${changed[@]} \
						   ${newremoved[@]}' -- $cur ) )
			else
				COMPREPLY=( $( compgen -f -- $cur ) )
			fi
		else
			COMPREPLY=( $( compgen -W '-n -R -l -f -F -m -r' -- \
				       $cur ) )
		fi
		;;
	diff)
		if [[ "$cur" == -* ]]; then
			_longopt diff
		else
			get_entries
			COMPREPLY=( ${entries[@]:-} )
		fi
		;;
	remove)
		if [[ "$cur" != -* ]]; then
			set_prefix
			if [ $COMP_CWORD -gt 1 -a -r ${prefix}CVS/Entries ]; then
				get_entries
				# find out what files are missing
				for i in ${entries[@]}; do
					[ ! -r "$i" ] && miss=( ${miss[@]} $i )
				done
				COMPREPLY=( $(compgen -W '${miss[@]}' -- $cur) )
			fi
		else
			COMPREPLY=( $( compgen -W '-f -l -R' -- $cur ) )
		fi
		;;
	import)
		if [[ "$cur" != -* ]]; then
			# starts with same algorithm as checkout
			[ -z "$cvsroot" ] && cvsroot=$CVSROOT
			prefix=${cur%/*}
			if [ -r ${cvsroot}/${prefix} ]; then
				get_modules
				COMPREPLY=( ${COMPREPLY[@]#$cvsroot} )
				COMPREPLY=( ${COMPREPLY[@]#\/} )
			fi
			pwd=$( pwd )
			pwd=${pwd##*/}
			COMPREPLY=( $( compgen -W '${COMPREPLY[@]} $pwd' -- \
				       $cur ) )
		else
			COMPREPLY=( $( compgen -W '-d -k -I -b -m -W' -- $cur ))
		fi
		;;
	"")
		COMPREPLY=( $( compgen -W 'add admin annotate checkout ci co \
					   commit diff delete edit export \
					   freeze get history import log new \
					   patch rcs rdiff release remove \
					   rfreeze rlog rm rtag status tag \
					   unedit update -H -Q -q -b -d -e -f \
					   -l -n -t -r -v -w -x -z --help \
					   --version' -- $cur ) )
		;;
	*)
		;;
	esac
	
	return 0
}
complete -F _cvs $default cvs
}

have rpm && {
# helper functions for rpm completion
#
_rpm_installed_packages()
{
	local i

	if [ -r /var/log/rpmpkgs -a \
		/var/log/rpmpkgs -nt /var/lib/rpm/Packages ]; then
		# using RHL 7.2 - this is quicker than querying the DB
		COMPREPLY=( $( sed -ne \
		's|^\('$cur'.*\)-[0-9a-zA-Z._]\+-[0-9a-z.@]\+.*\.rpm$|\1|p' \
				/var/log/rpmpkgs ) )
	else
		COMPREPLY=( $( rpm -qa | sed -ne \
		's|^\('$cur'.*\)-[0-9a-zA-Z._]\+-[0-9a-z.@]\+$|\1|p' ) )
	fi
}

_rpm_groups()
{
	local IFS=$'\t'
	# remove trailing backslash, or grep will complain
	cur=${cur%"\\"}
	COMPREPLY=( $( rpm -qa --queryformat '%{group}\n' | grep "^$cur" ) )
	# backslash escape spaces and translate newlines to tabs
	COMPREPLY=( $( echo ${COMPREPLY[@]} | sed 's/ /\\ /g' | tr '\n' '\t' ) )
}

# rpm(8) completion
# 
_rpm()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	if [ $COMP_CWORD -eq 1 ]; then
		# first parameter on line
		case "$cur" in
		-b*)
			COMPREPLY=( $( compgen -W '-ba -bb -bc -bi -bl -bp -bs'\
				       -- $cur ) )
			;;
		-t*)
			COMPREPLY=( $( compgen -W '-ta -tb -tc -ti -tl -tp -ts'\
				       -- $cur ) )
			;;
		--*)
			COMPREPLY=( $( compgen -W '--help --version --initdb \
			--checksig --recompile --rebuild --resign --addsign \
			--rebuilddb --showrc --setperms --setugids --tarbuild \
			--eval --install --upgrade --query --freshen --erase \
			--verify --querytags --rmsource --rmspec --clean \
			--import' -- $cur ) )
			;;
		*)
			COMPREPLY=( $( compgen -W '-b -e -F -i -q -t -U -V' \
				       -- $cur ) )
			;;
		esac

	return 0
	fi

	case "$prev" in
	--@(@(db|exclude)path|prefix|relocate|root))
		_filedir -d
		return 0
		;;
	--eval)
		# get a list of macros
		COMPREPLY=( $( sed -ne 's|^\(%'${cur#\%}'[^ '$'\t'']*\).*$|\1|p' \
			       /usr/lib/rpm/macros ) )
		return 0
		;;
	--pipe)
		COMPREPLY=( $( compgen -c -- $cur ) )
		return 0
		;;
	--rcfile)
		_filedir
		return 0
		;;
	--specfile)
		# complete on .spec files
		_filedir spec
		return 0
		;;
	--whatprovides)
		if [[ "$cur" == */* ]]; then
			_filedir
		else
		# complete on capabilities
			COMPREPLY=( $( rpm -qa --queryformat \
					'%{providename}\n' | grep "^$cur" ) )
		fi
		return 0
		;;
	--whatrequires)
		# complete on capabilities
		COMPREPLY=( $( rpm -qa --queryformat '%{requirename}\n' | \
				grep "^$cur" ) )
		return 0
		;;
	esac

	case "${COMP_WORDS[1]}" in
	-@([iFU]*|-install|-freshen|-upgrade))
		if [[ "$cur" == -* ]]; then
			COMPREPLY=( $( compgen -W '--percent --force --test \
			--replacepkgs --replacefiles --root --excludedocs \
			--includedocs --noscripts --rcfile --ignorearch \
			--dbpath --prefix --ignoreos --nodeps --allfiles \
			--ftpproxy --ftpport --justdb --httpproxy --httpport \
			--noorder --relocate --badreloc --notriggers \
			--excludepath --ignoresize --oldpackage --define \
			--eval --pipe --queryformat --repackage --nosuggests \
			--nodigest --nosignature' -- $cur ) )
		else
			_filedir 'rpm'
		fi
		;;
	-@(e|-erase))
		if [[ "$cur" == -* ]]; then
			COMPREPLY=( $( compgen -W '--allmatches --noscripts \
			--notriggers --nodeps --test --repackage' -- $cur ) )
		else
			_rpm_installed_packages
		fi
		;;
	-@(q*|-query))
		# check whether we're doing file completion
		if [ "${COMP_LINE#* -*([^ -])f}" != "$COMP_LINE" ]; then
			_filedir
		elif [ "${COMP_LINE#* -*([^ -])g}" != "$COMP_LINE" ]; then
			_rpm_groups
		elif [ "${COMP_LINE#* -*([^ -])p}" != "$COMP_LINE" ]; then
			# uninstalled package completion
			if [[ "$cur" == -* ]]; then
				COMPREPLY=( $( compgen -W '--scripts --root \
				--rcfile --whatprovides --whatrequires \
				--requires --triggeredby --ftpport --ftpproxy \
				--httpproxy --httpport --provides --triggers \
				--dump --changelog --dbpath --filesbypkg \
				--define --eval --pipe --showrc --info --list \
				--state --docfiles --configfiles --queryformat \
				--conflicts --obsoletes --nodigest \
				--nosignature' -- $cur ) )
			else
				_filedir 'rpm'
			fi
		else
			# installed package completion
			if [[ "$cur" == -* ]]; then
				COMPREPLY=( $( compgen -W '--scripts --root \
				--rcfile --whatprovides --whatrequires \
				--requires --triggeredby --ftpport --ftpproxy \
				--httpproxy --httpport --provides --triggers \
				--dump --changelog --dbpath --specfile \
				--querybynumber --last --filesbypkg --define \
				--eval --pipe --showrc --info --list --state \
				--docfiles --configfiles --queryformat \
				--conflicts --obsoletes --pkgid --hdrid \
				--fileid --tid --nodigest --nosignature' \
				-- $cur ) )
			elif [ "${COMP_LINE#* -*([^ -])a}" == "$COMP_LINE" ]; then
				_rpm_installed_packages
			fi
		fi
		;;
	-@(K*|-checksig))
		if [[ "$cur" == -* ]]; then
			COMPREPLY=( $( compgen -W '--nopgp --nogpg --nomd5 \
					--nodigest --nosignature' -- $cur ) )
		else
			_filedir 'rpm'
		fi
		;;
	-@([Vy]*|-verify))
		if [[ "$cur" == -* ]]; then
			COMPREPLY=( $( compgen -W '--root --rcfile --dbpath \
			--nodeps --nofiles --noscripts --nomd5 --querytags \
			--specfile --whatrequires --whatprovides --nodigest \
			--nosignature' -- $cur ) )
		# check whether we're doing file completion
		elif [ "${COMP_LINE#* -*([^ -])f}" != "$COMP_LINE" ]; then
			_filedir
		elif [ "${COMP_LINE#* -*([^ -])g}" != "$COMP_LINE" ]; then
			_rpm_groups
		elif [ "${COMP_LINE#* -*([^ -])p}" != "$COMP_LINE" ]; then
			_filedir 'rpm'
		else
			_rpm_installed_packages
		fi
		;;
	-[bt]*)
		if [[ "$cur" == -* ]]; then
			COMPREPLY=( $( compgen -W '--short-circuit --timecheck \
			--clean --rmsource --rmspec --test --sign --buildroot \
			--targetbuildarch --buildos --nobuild --nodeps \
			--nodirtokens' -- $cur ) )
		elif [[ ${COMP_WORDS[1]} == -b* ]]; then
			_filedir 'spec'
		else
			_filedir '@(tgz|tar.@(gz|bz2))'
		fi
		;;
	--re@(build|compile))
		if [[ "$cur" == -* ]]; then
			COMPREPLY=( $( compgen -W '--nodeps --rmsource \
				--rmspec --sign --nodirtokens' -- $cur ) )
		else
			_filedir 'src.rpm'
		fi
		;;
	--tarbuild)
		_filedir '@(tgz|tar.@(gz|bz2))'
		;;
	--@(re|add)sign)
		_filedir 'rpm'
		;;
	--set@(perms|gids))
		_rpm_installed_packages
		;;
	--@(clean|rms@(ource|pec)))
		if [[ "$cur" == -* ]]; then
			COMPREPLY=( $( compgen -W '--clean --rmsource \
					--rmspec' -- $cur ) )
		else
			_filedir 'spec'
		fi
		;;
	--@(import|dbpath|root))
		if [[ "$cur" == -* ]]; then
			COMPREPLY=( $( compgen -W '--import --dbpath --root' \
					-- $cur ) )
		else
			_filedir
		fi
		;;
	esac

	return 0
}
complete -F _rpm $filenames rpm rpmbuild
}

# Debian apt-get(8) completion.
#
have apt-get &&
_apt_get()
{
	local cur prev special i

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	for (( i=0; i < ${#COMP_WORDS}-1; i++ )); do
		if [[ ${COMP_WORDS[i]} == @(install|remove|source|build-dep) ]]; then
			special=${COMP_WORDS[i]}
		fi
	done

	if [ -n "$special" ]; then
		case $special in
		remove)
			if [ -f /etc/debian_version ]; then
				# Debian system
				COMPREPLY=( $( _comp-dpkg-installed-packages \
						$cur ) )
			else
				# assume RPM based
				_rpm_installed_packages
			fi
			return 0
			;;
		*)
			COMPREPLY=( $( apt-cache pkgnames $cur 2> /dev/null ) )
			return 0
			;;

		esac
	fi

	case "$prev" in
	    -@(c|-config-file))
 		     _filedir
		     return 0
		     ;;

	    -@(t|-target-release|-default-release))
		     COMPREPLY=( $( apt-cache policy | \
				    grep "release.o=Debian,a=$cur" | \
				    sed -e "s/.*a=\(\w*\).*/\1/" | uniq ) )
		     return 0
		     ;;
 
	esac

	if [[ "$cur" == -* ]]; then

		COMPREPLY=( $( compgen -W '-d -f -h -v -m -q -s -y \
				-u -t -b -c -o --download-only --fix-broken \
				--help --version --ignore-missing \
				--fix-missing --no-download --quiet --simulate \
				--just-print --dry-run --recon --no-act --yes \
				--assume-yes --show-upgraded --only-source \
				--compile --build --ignore-hold \
				--target-release --no-upgrade --force-yes \
				--print-uris --purge --reinstall \
				--list-cleanup --default-release \
				--trivial-only --no-remove --diff-only \
				--tar-only --config-file --option' -- $cur ) )
	else

		COMPREPLY=( $( compgen -W 'update upgrade dselect-upgrade \
				dist-upgrade install remove source build-dep \
				check clean autoclean' -- $cur ) )

	fi


	return 0
}
[ -n "${have:-}" ] && complete -F _apt_get $filenames apt-get

# Debian apt-cache(8) completion.
#
have apt-cache &&
_apt_cache()
{
	local cur prev special i

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	
	if [ "$cur" != show ]; then
	    for (( i=0; i < ${#COMP_WORDS}-1; i++ )); do
		if [[ ${COMP_WORDS[i]} == @(add|depends|dotty|policy|show?(pkg)) ]]; then
		    special=${COMP_WORDS[i]}
		fi
	    done
	fi


	if [ -n "$special" ]; then
	    case $special in
		add)
		    _filedir
		    return 0
		    ;;
		
 		*)
		    COMPREPLY=( $( apt-cache pkgnames $cur 2> /dev/null ) )
		    return 0
		    ;;
		
	    esac
	fi


	case "$prev" in
	     -@(c|p|s|-config-file|-@(pkg|src)-cache))
		     _filedir
		     return 0
		     ;;
	     search)
		     return 0
		     ;;
	esac

	if [[ "$cur" == -* ]]; then

		COMPREPLY=( $( compgen -W '-h -v -p -s -q -i -f -a -g -c \
				-o --help --version --pkg-cache --src-cache \
				--quiet --important --full --all-versions \
				--generate --no-generate --names-only \
				--all-names --config-file --option \
				--recurse' -- $cur ) )
	else

		COMPREPLY=( $( compgen -W 'add gencaches showpkg show stats \
				dumpavail unmet check search dump dotty policy \
				depends pkgnames' -- $cur ) )

	fi


	return 0
}
[ -n "${have:-}" ] && complete -F _apt_cache $filenames apt-cache


# Debian aptitude(1) completion
#
have aptitude && {
_comp-dpkg-hold-packages()
{
	grep -B 2 'hold' /var/lib/dpkg/status | grep "Package: $1" \
		| cut -d\  -f2
}

_aptitude()
{
	local cur dashoptions prev special i

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}


	dashoptions='-S -u -i -h --help --version -s --simulate -d \
		     --download-only -P --prompt -y --assume-yes -F \
		     --display-format -w --width -f --with-recommends \
		     --with-suggests --without-recommends --without-suggests'

	for (( i=0; i < ${#COMP_WORDS}-1; i++ )); do
	    if [[ ${COMP_WORDS[i]} == @(install|hold|unhold|markauto|unmarkauto|dist-upgrade|download|purge|remove) ]]; then
		special=${COMP_WORDS[i]}
	    fi
	    #exclude some mutually exclusive options
	    [[ ${COMP_WORDS[i]} == '-u' ]] && dashoptions=${dashoptions/-i}
	    [[ ${COMP_WORDS[i]} == '-i' ]] && dashoptions=${dashoptions/-u}
	done

	if [[ -n "$special" ]]; then
	   case $special in
	       @(install|hold|markauto|unmarkauto|dist-upgrade|download))
		   COMPREPLY=( $( apt-cache pkgnames $cur 2> /dev/null ) )
		   return 0
		   ;;
	       @(purge|remove))
  		   COMPREPLY=( $( _comp-dpkg-installed-packages $cur ) )
		   return 0
		   ;;
	       unhold)
  		   COMPREPLY=( $( _comp-dpkg-hold-packages $cur ) )
		   return 0
		   ;;

	   esac
	fi

	case $prev in
	    # don't complete anything if these options are found
	    @(autoclean|clean|forget-new|search|upgrade|update))
		return 0
		;;
	    -S)
		_filedir
		return 0
		;;
	esac

	if [[ "$cur" == -* ]]; then
	    COMPREPLY=( $( compgen -W "$dashoptions" -- $cur ) )
	else
	    COMPREPLY=( $( compgen -W 'update upgrade forget-new clean \
				       autoclean install remove hold unhold \
				       purge markauto unmarkauto dist-upgrade \
				       download search' -- $cur ) )
	fi


	return 0
}
[ -n "${have:-}" ] && complete -F _aptitude $default aptitude
}

# Debian apt-build(1) completion.
#
have apt-build &&
_apt_build()
{
	local cur prev special i

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	for (( i=0; i < ${#COMP_WORDS}-1; i++ )); do
		if [[ ${COMP_WORDS[i]} == @(install|remove|source|info|clean) ]]; then
			special=${COMP_WORDS[i]}
		fi
	done

	if [ -n "$special" ]; then
		case $special in
		@(install|source|info))
			COMPREPLY=( $( apt-cache pkgnames $cur 2> /dev/null ) )
			return 0
			;;
		remove)
			COMPREPLY=( $( _comp-dpkg-installed-packages \
					$cur ) )
			return 0
			;;
		*)
			return 0
			;;
		esac
	fi

	case "$prev" in

	     --@(patch|build-dir|repository-dir))
		   _filedir
		   return 0
		   ;;
 
	     -@(h|-help))
		   return 0
		   ;;

	esac

	if [[ "$cur" == -* ]]; then
	    COMPREPLY=( $( compgen -W '--help --show-upgraded -u --build-dir \
				  --repository-dir --build-only \
				  --build-command --reinstall --rebuild \
				  --remove-builddep --no-wrapper --purge \
				  --patch --patch-strip -p --yes -y \
				  --version -v --no-source' -- $cur ) )

	else
	    COMPREPLY=( $( compgen -W 'update upgrade install remove \
				  source dist-upgrade world clean info \
				  clean-build update-repository ' -- $cur ) )
	fi


	return 0
}
[ -n "${have:-}" ] && complete -F _apt_build $filenames apt-build

# chsh(1) completion
#
_chsh()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	if [ "$prev" = "-s" ]; then
		COMPREPLY=( $( chsh -l | grep "^$cur" ) )
	else
		COMPREPLY=( $( compgen -u -- $cur ) )
	fi

	return 0
}
complete -F _chsh chsh

# chkconfig(8) completion
#
have chkconfig &&
_chkconfig()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	if [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $( compgen -W '--list --add --del --level' -- \
			       $cur ) )
		return 0
	fi

	if [ $COMP_CWORD -eq 4 ]; then
		COMPREPLY=( $( compgen -W 'on off reset' -- $cur ) )
		return 0
	fi

	case "$prev" in
	@([1-6]|--@(list|add|del)))
		COMPREPLY=( $( compgen -W "`(cd /etc/rc.d/init.d; echo *)`" \
			       -- $cur) )
		return 0
		;;
	--level)
		COMPREPLY=( $( compgen -W '1 2 3 4 5 6' -- $cur ) )
		return 0
		;;
	esac

	return 0
}
[ -n "${have:-}" ] && complete -F _chkconfig chkconfig

# This function provides simple user@host completion
#
_user_at_host() {
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [[ $cur == *@* ]]; then
		_known_hosts
	else
		COMPREPLY=( $( compgen -S '@' -u -- "$cur" ) )
	fi

	return 0
}
shopt -u hostcomplete && complete -F _user_at_host $nospace talk ytalk finger

# This function performs host completion based on ssh's known_hosts files,
# defaulting to standard host completion if they don't exist.
#
_known_hosts()
{
	local cur ocur user suffix aliases global_kh user_kh hosts
	local -a kh config

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	ocur=$cur

	[ "$1" = -a ] || [ "$2" = -a ] && aliases='yes'
	[ "$1" = -c ] || [ "$2" = -c ] && suffix=':'
	[[ $cur == *@* ]] && user=${cur%@*}@ && cur=${cur#*@}
	kh=()

	# ssh config files
	[ -r /etc/ssh/ssh_config ] && config[0]=/etc/ssh/ssh_config
	[ -r ~/.ssh/config ]	   && config[1]=~/.ssh/config

	if [ ${#config[@]} -gt 0 ]; then
	    # expand path (if present) to global known hosts file
	    global_kh=$( eval echo $( sed -ne 's/^[Gg][Ll][Oo][Bb][Aa][Ll][Kk][Nn][Oo][Ww][Nn][Hh][Oo][Ss][Tt][Ss][Ff][Ii][Ll][Ee]['$'\t '']*\(.*\)$/\1/p' ${config[@]} ) )
	    # expand path (if present) to user known hosts file
	    user_kh=$( eval echo $( sed -ne 's/^[Uu][Ss][Ee][Rr][Kk][Nn][Oo][Ww][Nn][Hh][Oo][Ss][Tt][Ss][Ff][Ii][Ll][Ee]['$'\t '']*\(.*\)$/\1/p' ${config[@]} ) )
	fi

	# choose which global known hosts file to use
	if [ -r "$global_kh" ]; then
	    kh=( "$global_kh" )
	else
	    [ -r /etc/ssh/ssh_known_hosts ]  && kh[0]=/etc/ssh/ssh_known_hosts
	    [ -r /etc/ssh/ssh_known_hosts2 ] && kh[1]=/etc/ssh/ssh_known_hosts2
	    [ -r /etc/known_hosts ]	     && kh[2]=/etc/known_hosts
	    [ -r /etc/known_hosts2 ]	     && kh[3]=/etc/known_hosts2
	fi

	# choose which user known hosts file to use
	if [ -r "$user_kh" ]; then
	    kh=( ${kh[@]} "$user_kh" )
	else
	    [ -r ~/.ssh/known_hosts ]  && kh=( ${kh[@]} ~/.ssh/known_hosts )
	    [ -r ~/.ssh/known_hosts2 ] && kh=( ${kh[@]} ~/.ssh/known_hosts2 )
	fi

	# If we have known_hosts files to use
	if [ ${#kh[@]} -gt 0 ]; then
	    # Escape slashes and dots in paths for awk
	    cur=${cur//\//\\\/}
	    cur=${cur//\./\\\.}

	    if [[ "$cur" == [0-9]*.* ]]; then
		# Digits followed by a dot - just search for that
		cur="^$cur.*"
	    elif [[ "$cur" == [0-9]* ]]; then
		# Digits followed by no dot - search for digits followed
		# by a dot
		cur="^$cur.*\."
	    elif [ -z "$cur" ]; then
		# A blank - search for a dot or an alpha character
		cur="[a-z.]"
	    else
		cur="^$cur"
	    fi

	    # FS needs to look for a comma separated list
	    COMPREPLY=( $( awk 'BEGIN {FS=","}
				{for (i=1; i<=2; ++i) { \
				       gsub(" .*$", "", $i); \
				       if ($i ~ /'$cur'/) {print $i} \
				}}' ${kh[@]} 2>/dev/null ) )

	    # append any available aliases from config files
	    if [ ${#config[@]} -gt 0 ] && [ -n "$aliases" ]; then
		hosts=$( compgen -W "$( echo $( sed -ne "s/^[Hh][Oo][Ss][Tt]["$'\t '"]*\([^*?]*\)$/\1/p" ${config[@]} ) )" -- $ocur )
		COMPREPLY=( ${COMPREPLY[@]} $hosts )
	    fi

	    # apply suffix
	    for (( i=0; i < ${#COMPREPLY[@]}; i++ )); do
		COMPREPLY[i]=$user${COMPREPLY[i]}$suffix
	    done
	else
	    # Just do normal hostname completion
	    COMPREPLY=( $( compgen -A hostname -S "$suffix" -- $cur ) )
	fi

	return 0
}
complete -F _known_hosts traceroute traceroute6 tracepath tracepath6 \
	ping fping telnet host nslookup rsh rlogin ftp dig

# ssh(1) completion
#
have ssh && {
_ssh()
{
	local cur prev
	local -a config

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
	-*c)
	    COMPREPLY=( $( compgen -W 'blowfish 3des 3des-cbc blowfish-cbc \
			   arcfour cast128-cbc' -- $cur ) )
	    ;;
	-*i)
	    _filedir
	    ;;
	-*l)
	    COMPREPLY=( $( compgen -u -- $cur ) )
	    ;;
	*)
	    _known_hosts -a

	    [ $COMP_CWORD -eq 1 ] || \
		COMPREPLY=( ${COMPREPLY[@]} $( compgen -c -- $cur ) )
	esac

	return 0
}
shopt -u hostcomplete && complete -F _ssh ssh slogin sftp

# scp(1) completion
#
_scp()
{
	local cur userhost path

	local IFS=$'\t\n'
	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	_expand || return 0

	if [[ "$cur" == *:* ]]; then
		# remove backslash escape from :
		cur=${cur/\\:/:}
		userhost=${cur%%?(\\):*}
		path=${cur#*:}
		# unescape spaces
		path=${path//\\\\\\\\ / }
		if [ -z "$path" ]; then
			# default to home dir of specified user on remote host
			path=$(ssh -o 'Batchmode yes' $userhost pwd 2>/dev/null)
		fi
		# escape spaces; remove executables, aliases, pipes and sockets;
		# add space at end of file names
		COMPREPLY=( $( ssh -o 'Batchmode yes' $userhost \
				command ls -aF1d "$path*" 2>/dev/null | \
				sed -e 's/ /\\\\\\\ /g' -e 's/[*@|=]$//g' \
				    -e 's/[^\/]$/& /g' ) )
		return 0
	fi

	[[ "$cur" == */* ]] || _known_hosts -c -a
		COMPREPLY=( ${COMPREPLY[@]} $( command ls -aF1d "$cur"* \
			    2>/dev/null | sed -e 's/ /\\ /g' -e 's/[*@|=]$//g' \
			    -e 's/[^\/]$/& /g' ) )



	return 0
}
complete -F _scp $nospace scp
}

# Linux route(8) completion
#
[ $UNAME = Linux ] &&
_route()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	if [ "$prev" = dev ]; then
	    COMPREPLY=( $( ifconfig -a | sed -ne 's|^\('$cur'[^ ]*\).*$|\1|p' ))
	    return 0
	fi

	COMPREPLY=( $( compgen -W 'add del -host -net netmask metric mss \
				   window irtt reject mod dyn reinstate dev \
				   default gw' -- $cur ) )

	COMPREPLY=( $( echo " ${COMP_WORDS[@]}" | \
		       (while read -d ' ' i; do
			   [ "$i" == "" ] && continue
			   # flatten array with spaces on either side,
			   # otherwise we cannot grep on word
			   # boundaries of first and last word
			   COMPREPLY=" ${COMPREPLY[@]} "
			   # remove word from list of completions
			   COMPREPLY=( ${COMPREPLY/ $i / } )
			done
		       echo ${COMPREPLY[@]})
		  ) )
	return 0
}
[ $UNAME = Linux ] && complete -F _route route

# GNU make(1) completion (adapted from the example supplied with the bash 2.04
# source code)
#
have make &&
_make()
{
	local mdef makef gcmd cur prev i

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	# if prev argument is -f, return possible filename completions.
	# we could be a little smarter here and return matches against
	# `makefile Makefile *.mk', whatever exists
	if [[ "$prev" == -*f ]]; then
		_filedir
		return 0
	fi

	# check for a long option
	if [[ "$cur" == --* ]]; then
		_longopt $1
		return 0
	fi

	# if we want an option, return the possible posix options
	if [[ "$cur" == -* ]]; then
		COMPREPLY=( $( compgen -W '-e -f -i -k -n -p -q -r -S -s -t' \
			       -- $cur ) )
		return 0
	fi

	# make reads `makefile' before `Makefile'
	if [ -f makefile ]; then
		mdef=makefile
	elif [ -f Makefile ]; then
		mdef=Makefile
	else
		mdef=*.mk	       # local convention
	fi

	# before we scan for targets, see if a makefile name was specified
	# with -f
	for (( i=0; i < ${#COMP_WORDS[@]}; i++ )); do
		if [[ ${COMP_WORDS[i]} == -*f ]]; then
			eval makef=${COMP_WORDS[i+1]} # eval for tilde expansion
			break
		fi
	done

	[ -z "$makef" ] && makef=$mdef

	# if we have a partial word to complete, restrict completions to
	# matches of that word
	[ -n "$2" ] && gcmd='grep "^$2"' || gcmd=cat

	COMPREPLY=( $( grep -v '^\w\w*[[:space:]]*:=' $makef 2>/dev/null | \
		       awk 'BEGIN {FS=":"} /^[^.#'$'\t''][^=]*:/ {print $1}' | \
		       eval $gcmd ) )

	# default to filename completion if all else failed
	[ ${#COMPREPLY[@]} -eq 0 ] && _filedir

	return 0
}
[ -n "${have:-}" ] && complete -F _make -X '+($*|*.[ch])' $filenames make gmake pmake

# Red Hat Linux service completion. This completes on a list of all available
# service scripts in the SysV init.d directory, followed by that script's
# available commands
#
have service &&
_service()
{
	local cur sysvdir

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	[ -d /etc/rc.d/init.d ] && sysvdir=/etc/rc.d/init.d \
				|| sysvdir=/etc/init.d

	#[[ "$cur" == -* ]] && return 0
	if [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $( compgen -W '`echo $sysvdir/!(*.rpmsave|*.rpmorig)`' ) )
		COMPREPLY=( $( compgen -W '${COMPREPLY[@]#$sysvdir/}' -- \
			       $cur ) )
	else
		COMPREPLY=( $( compgen -W '`sed -ne "y/|/ /; \
					    s/^.*Usage.*{\(.*\)}.*$/\1/p" \
					    $sysvdir/${COMP_WORDS[1]}`' -- \
			       $cur ) )
	fi

	return 0
}
[ -n "${have:-}" ] && complete -F _service service

# GNU tar(1) completion
#
_tar()
{
	local cur ext regex tar untar

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $( compgen -W 'c t x u r d A' -- $cur ) )
		return 0
	fi

	case "${COMP_WORDS[1]}" in
	?(-)c*f)
		_filedir
		return 0
		;;
	+([^Izjy])f)
		ext='tar'
		regex=$ext
		;;
	*z*f)
		ext='t?(ar.)@(gz|Z)'
		regex='t\(ar\.\)\(gz\|Z\)'
		;;
	*[Ijy]*f)
		ext='t?(ar.)bz?(2)'
		regex='t\(ar\.\)bz2\?'
		;;
	*)
		_filedir
		return 0
		;;
		
	esac

	if [[ "$COMP_LINE" == *$ext' ' ]]; then
		# complete on files in tar file
		#
		# get name of tar file from command line
		tar=$( echo "$COMP_LINE" | \
			sed -e 's|^.* \([^ ]*'$regex'\) .*$|\1|' )
		# devise how to untar and list it
		untar=t${COMP_WORDS[1]//[^Izjyf]/}

		COMPREPLY=( $( compgen -W "$( echo $( tar $untar $tar \
				2>/dev/null ) )" -- "$cur" ) )
		return 0
	fi

	# file completion on relevant files
	_filedir $ext

	return 0
}
[ -n "${COMP_TAR_INTERNAL_PATHS:-}" ] && complete -F _tar $dirnames tar ||
	complete -F _tar $filenames tar

# jar(1) completion
#
have jar &&
_jar()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD = 1 ]; then
		COMPREPLY=( $( compgen -W 'c t x u' -- $cur ) )
		return 0
	fi

	case "${COMP_WORDS[1]}" in
		*c*f)
			_filedir
			;;
		*f)
			_filedir 'jar'
			;;
		*)
			_filedir
			;;
	esac
}
[ -n "${have:-}" ] && complete -F _jar $filenames jar

# Linux iptables(8) completion
#
have iptables &&
_iptables()
{
	local cur prev table chain

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]} 
	prev=${COMP_WORDS[COMP_CWORD-1]}
	chain='s/^Chain \([^ ]\+\).*$/\1/p'

	if [[ $COMP_LINE == *-t\ *filter* ]]; then
		table="-t filter"
	elif [[ $COMP_LINE == *-t\ *nat* ]]; then
		table="-t nat"
	elif [[ $COMP_LINE == *-t\ *mangle* ]]; then
		table="-t mangle"
	fi

	case "$prev" in
	-*[AIDPFXL])
		COMPREPLY=( $( compgen -W '`iptables $table -nL | \
			    sed -ne "s/^Chain \([^ ]\+\).*$/\1/p"`' -- $cur ) )
		;;
	-*t)
		COMPREPLY=( $( compgen -W 'nat filter mangle' -- $cur ) )
		;;
	-j)
		if [ "$table" = "-t filter" -o "$table" = "" ]; then
		    COMPREPLY=( $( compgen -W 'ACCEPT DROP LOG ULOG REJECT \
		    `iptables $table -nL | sed -ne "$chain" \
		    -e "s/INPUT|OUTPUT|FORWARD|PREROUTING|POSTROUTING//"`' -- \
		    $cur ) )
		elif [ "$table" = "-t nat" ]; then
		    COMPREPLY=( $( compgen -W 'ACCEPT DROP LOG ULOG REJECT \
		    MIRROR SNAT DNAT MASQUERADE `iptables $table -nL | \
		    sed -ne "$chain" -e "s/OUTPUT|PREROUTING|POSTROUTING//"`' \
		    -- $cur ) )
		elif [ "$table" = "-t mangle" ]; then
		    COMPREPLY=( $( compgen -W 'ACCEPT DROP LOG ULOG REJECT \
		    MARK TOS `iptables $table -nL | sed -ne "$chain" \
		    -e "s/INPUT|OUTPUT|FORWARD|PREROUTING|POSTROUTING//"`' -- \
		    $cur ) )
		fi
		;;
	*)
		;;
	esac

} 
[ -n "${have:-}" ] && complete -F _iptables iptables

# tcpdump(8) completion
#
have tcpdump &&
_tcpdump()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	COMPREPLY=( $( compgen -W 'host net port src dst ether gateway \
				   less greater' -- $cur ) )

}
[ -n "${have:-}" ] && complete -F _tcpdump tcpdump

# autorpm(8) completion
#
have autorpm &&
_autorpm()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	COMPREPLY=( $( compgen -W '--notty --debug --help --version \
				   auto add fullinfo info help install list \
				   remove set' -- $cur ) )

}
[ -n "${have:-}" ] && complete -F _autorpm autorpm

# This meta-cd function observes the CDPATH variable, so that cd additionally
# completes on directories under those specified in CDPATH.
#
_cd()
{
	local IFS=$'\t\n' cur=${COMP_WORDS[COMP_CWORD]} i j k

	# Use standard dir completion if no CDPATH or parameter starts with /,
	# ./ or ../
	if [ -z "${CDPATH:-}" ] || [[ "$cur" == ?(.)?(.)/* ]]; then
		_filedir -d
		return 0
	fi

	IFS=$'\t\n'
	# we have a CDPATH, so loop on its contents
	for i in ${CDPATH//:/$'\t'}; do
		# create an array of matched subdirs
		k=${#COMPREPLY[@]}
		for j in $( compgen -d $i/$cur ); do
			COMPREPLY[$k]=${j#$i/}
			k=$((++k))
		done
	done

	_filedir -d

	return 0
}
complete -F _cd $nospace $filenames cd

# A meta-command completion function for commands like sudo(8), which need to
# first complete on a command, then complete according to that command's own
# completion definition - currently not quite foolproof (e.g. mount and umount
# don't work properly), but still quite useful
#
_command()
{
	local cur func cline cspec

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $( compgen -c -- $cur ) )
	elif complete -p ${COMP_WORDS[1]} &>/dev/null; then
		cspec=$( complete -p ${COMP_WORDS[1]} )
		if [ "${cspec#*-F }" != "$cspec" ]; then
			# complete -F <function>
			#
			# COMP_CWORD and COMP_WORDS() are not read-only,
			# so we can set them before handing off to regular
			# completion routine

			# set current token number to 1 less than now
			COMP_CWORD=$(( $COMP_CWORD - 1 ))
			# get function name
			func=${cspec#*-F }
			func=${func%% *}
			# get current command line minus initial command
			cline="${COMP_LINE#$1 }"
			# split current command line tokens into array
			COMP_WORDS=( $cline )
			$func $cline
			# remove any \: generated by a command that doesn't
			# default to filenames or dirnames (e.g. sudo chown)
			if [ "${cspec#*-o }" != "$cspec" ]; then
				cspec=${cspec#*-o }
				cspec=${cspec%% *}
				if [[ "$cspec" != @(dir|file)names ]]; then
					COMPREPLY=( "${COMPREPLY[@]//\\\\:/:}" )
				fi
			fi
		elif [ "${cspec#*-[abcdefgjkvu]}" != "$cspec" ]; then
			# complete -[abcdefgjkvu]
			func=$( echo $cspec | \
				sed -e 's/^.*\(-[abcdefgjkvu]\).*$/\1/' )
			COMPREPLY=( $( compgen $func -- $cur ) )
		elif [ "${cspec#*-A}" != "$cspec" ]; then
			# complete -A <type>
			func=${cspec#*-A }
			func=${func%% *}
			COMPREPLY=( $( compgen -A $func -- $cur ) )
		fi
	fi

	[ ${#COMPREPLY[@]} -eq 0 ] && _filedir
}
complete -F _command $filenames nohup exec nice eval strace time ltrace then \
	 else do

_root_command()
{
	PATH=$PATH:/sbin:/usr/sbin:/usr/local/sbin _command $1
}
complete -F _root_command $filenames sudo fakeroot

# ant(1) completion
#
have ant &&
_ant()
{
	local cur prev buildfile i

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
		-buildfile)
			_filedir 'xml'
			return 0
			;;
		-logfile)
			_filedir
			return 0
			;;
	esac

	if [[ "$cur" == -* ]]; then
		# relevant options completion
		COMPREPLY=( $( compgen -W '-help -projecthelp -version -quiet \
			       -verbose -debug -emacs -logfile -logger \
			       -listener -buildfile -D -find' -- $cur ) )
	else
		# available targets completion
		# find which buildfile to use
		buildfile=build.xml
		for (( i=1; i < COMP_CWORD; i++ )); do
			if [[ "${COMP_WORDS[i]}" == -buildfile ]]; then
				buildfile=${COMP_WORDS[i+1]}
				break
			fi
		done
		[ ! -f $buildfile ] && return 0

		# parse buildfile for targets
		COMPREPLY=( $( awk -F'"' '/<target name="/ {print $2}' \
				$buildfile | grep "^$cur" ) )
	fi
}
[ -n "${have:-}" ] && complete -F _ant $filenames ant

have nslookup &&
_nslookup()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]#-}

	COMPREPLY=( $( compgen -P '-' -W 'all class= debug d2 domain= \
			       srchlist= defname search port= querytype= \
			       type= recurse retry root timeout vc \
			       ignoretc' -- $cur ) )
}
[ -n "${have:-}" ] && complete -F _nslookup nslookup

# mysqladmin(1) completion
#
have mysqladmin &&
_mysqladmin()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]} 
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
	-u)
		COMPREPLY=( $( compgen -u -- $cur ) )
		return 0
		;;
	*)
		;;
	esac

	COMPREPLY=( $( compgen -W '-# -f -? -C -h -p -P -i -r -E -s -S -t -u \
					      -v -V -w' -- $cur ) )

	COMPREPLY=( ${COMPREPLY[@]} \
		    $( compgen -W 'create drop extended-status flush-hosts \
				   flush-logs flush-status flush-tables \
				   flush-threads flush-privileges kill \
				   password ping processlist reload refresh \
				   shutdown status variables version' \
		       -- $cur ) )
}
[ -n "${have:-}" ] && complete -F _mysqladmin mysqladmin

# gzip(1) and bzip2(1) completion
#
have gzip &&
_zip()
{
	local IFS cur prev xspec

	IFS=$'\t\n'
	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	[ $1 = "gzip" ] && xspec="*.?(t)gz"
	[ $1 = "bzip2" ] && xspec="*.bz2"
	[[ "$prev" == -*[dt]* ]] && xspec="!"$xspec

	_expand || return 0

	COMPREPLY=( $( compgen -f -X "$xspec" -- $cur ) \
		    $( compgen -d -- $cur ) )
}
[ -n "${have:-}" ] && complete -F _zip $filenames gzip bzip2

# openssl(1) completion
#
have openssl &&
_openssl()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $( compgen -W 'asn1parse ca ciphers crl crl2pkcs7 \
			dgst dh dhparam dsa dsaparam enc errstr gendh gendsa \
			genrsa nseq passwd pkcs12 pkcs7 pkcs8 rand req rsa \
			rsautl s_client s_server s_time sess_id smime speed \
			spkac verify version x509 md2 md4 md5 mdc2 rmd160 sha \
			sha1 base64 bf bf-cbc bf-cfb bf-ecb bf-ofb cast \
			cast-cbc cast5-cbc cast5-cfb cast5-ecb cast5-ofb des \
			des-cbc des-cfb des-ecb des-ede des-ede-cbc \
			des-ede-cfb des-ede-ofb des-ede3 des-ede3-cbc \
			des-ede3-cfb des-ede3-ofb des-ofb des3 desx rc2 \
			rc2-40-cbc rc2-64-cbc rc2-cbc rc2-cfb rc2-ecb rc2-ofb \
			rc4 rc4-40' -- $cur ) )
	fi

	return 0
}
[ -n "${have:-}" ] && complete -F _openssl $default openssl

# screen(1) completion
#
have screen &&
_screen()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}
	test "$COMP_CWORD" -ge 2 && preprev=${COMP_WORDS[COMP_CWORD-2]} || unset preprev

	if test "$preprev" = "-d" -o "$preprev" = "-D" -a "$prev" = "-r" -o "$prev" = "-R"; then
		# list all
		COMPREPLY=( $( command screen -ls | \
				sed -ne 's|^['$'\t'']\+[0-9]\+\.\('$cur'[^'$'\t'']\+\).*$|\1|p' ) )
	else
		case "$prev" in
		-[rR])
			# list detached
			COMPREPLY=( $( command screen -ls | \
					sed -ne 's|^['$'\t'']\+[0-9]\+\.\('$cur'[^'$'\t'']\+\).*Detached.*$|\1|p' ) )
			;;
		-[dDx])
			# list attached
			COMPREPLY=( $( command screen -ls | \
					sed -ne 's|^['$'\t'']\+[0-9]\+\.\('$cur'[^'$'\t'']\+\).*Attached.*$|\1|p' ) )
			;;
		-s)
			# shells
			COMPREPLY=( $( grep ^${cur:-[^#]} /etc/shells ) )
			;;
		*)
			;;
		esac
	fi

	return 0
}
[ -n "${have:-}" ] && complete -F _screen $default screen

# lftp(1) bookmark completion
#
have lftp &&
_lftp()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD -eq 1 ] && [ -f ~/.lftp/bookmarks ]; then
	    COMPREPLY=( $( compgen -W '$( sed -ne "s/^\(.*\)'$'\t''.*$/\1/p" \
			   ~/.lftp/bookmarks )' -- $cur ) )
	fi

	return 0
}
[ -n "${have:-}" ] && complete -F _lftp $default lftp

# ncftp(1) bookmark completion
#
have ncftp &&
_ncftp()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD -eq 1 ] && [ -f ~/.ncftp/bookmarks ]; then
	    COMPREPLY=( $( compgen -W '$( sed -ne "s/^\([^,]\{1,\}\),.*$/\1/p" \
			   ~/.ncftp/bookmarks )' -- $cur ) )
	fi

	return 0
}
[ -n "${have:-}" ] && complete -F _ncftp $default ncftp

# gdb(1) completion
#
have gdb &&
_gdb()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	if [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $( compgen -c -- $cur ) )
	elif [ $COMP_CWORD -eq 2 ]; then
		prev=${prev##*/}
		COMPREPLY=( $( compgen -W "$( compgen -f core* \
				$( command ps axo comm,pid |
				awk '{if ($1 ~ /^'$prev'/) print $2}' ) )" \
				-- "$cur" ) )
	fi
}
[ -n "${have:-}" ] && complete -F _gdb $filenames gdb

# Postgresql completion
#
have psql && {
_pg_databases() 
{
	COMPREPLY=( $( psql -l 2>/dev/null | \
			sed -ne 's|^ \('$cur'[^ ]*\).*$|\1|p' ) )
}

_pg_users()
{
	COMPREPLY=( $( psql -qtc 'select usename from pg_user' 2>/dev/null | \
			grep "^ $cur" ) )
	[ ${#COMPREPLY[@]} -eq 0 ] && COMPREPLY=( $( compgen -u -- $cur ) )
}

# psql(1) completion
#
_psql() 
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
	-h|--host) 
		_known_hosts
		return 0
		;;
	-U|--username)
		_pg_users
		return 0
		;;
	-d|--dbname)
		_pg_databases
		return 0
		;;
	-@(o|f)|--output|--file)
		_filedir
		return 0
		;;
	esac

	if [[ "$cur" == -* ]]; then
		# return list of available options
		COMPREPLY=( $( compgen -W '-a --echo-all -A --no-align \
			-c --command -d --dbname -e --echo-queries \
			-E --echo-hidden -f --file -F --filed-separator \
			-h --host -H --html -l --list -n -o --output \
			-p --port -P --pset -q -R --record-separator \
			-s --single-step -S --single-line -t --tuples-only \
			-T --table-attr -U --username -v --variable \
			-V --version -W --password -x --expanded -X --nopsqlrc \
			-? --help ' -- $cur ) )
	else
		# return list of available databases
		_pg_databases
	fi
}
complete -F _psql $default psql

# createdb(1) completion
#
_createdb() 
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
	-@(h|-host=)) 
		_known_hosts
		return 0
		;;
	-@(U|-username=))
		_pg_users
		return 0
		;;
	esac

	if [[ "$cur" == -* ]]; then
		COMPREPLY=( $( compgen -W '-D -T -E -h -p -U -W -e -q \
			--location= --template= --encoding= --host= --port= \
			--username= --password --echo --quiet --help' -- $cur ))
	else
		_pg_databases
	fi
}
complete -F _createdb $default createdb

# dropdb(1) completion
#
_dropdb() 
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
	-@(h|-host=)) 
		_known_hosts
		return 0
		;;
	-@(U|-username=))
		_pg_users
		return 0
		;;
	esac

	if [[ "$cur" == -* ]]; then
		COMPREPLY=( $( compgen -W '-h -p -U -W -e -q \
				--host= --port= --username= --password \
				--interactive --echo --quiet --help' -- $cur ) )
	else
		_pg_databases
	fi
}
complete -F _dropdb $default dropdb
}

_longopt()
{
	local cur opt

	cur=${COMP_WORDS[COMP_CWORD]}

	if [[ "$cur" == --*=* ]]; then
		opt=${cur%%=*}
		# cut backlash that gets inserted before '=' sign
		opt=${opt%\\*}
		cur=${cur#*=}
		_filedir
		COMPREPLY=( $( compgen -P "$opt=" -W '${COMPREPLY[@]}' -- $cur))
		return 0
	fi

	if [[ "$cur" == -* ]]; then
		COMPREPLY=( $( $1 --help 2>&1 | sed -e '/--/!d' \
				-e 's/.*\(--[-A-Za-z0-9]\+=\?\).*/\1/' | \
			       grep "^$cur" | sort -u ) )
	elif [[ "$1" == @(mk|rm)dir ]]; then
		_filedir -d
	else
		_filedir
	fi
}
# makeinfo and texi2dvi are defined elsewhere
for i in a2ps autoconf automake bc gprof ld nm objcopy objdump readelf strip \
	 bison cpio diff patch enscript cp df dir du ln ls mkfifo mknod mv rm \
	 touch vdir xargs awk gperf grep grub indent less m4 sed shar date \
	 env seq su tee uname who texindex cat csplit cut expand fmt fold head \
	 md5sum nl od paste pr ptx sha1sum sort split tac tail tr unexpand \
	 uniq wc units wget rsync ldd bash id info irb mkdir rmdir netstat; do
    have $i && complete -F _longopt $filenames $i
done
unset i

# gcc(1) completion
#
# The only unusual feature is that we don't parse "gcc --help -v" output
# directly, because that would include the options of all the other backend
# tools (linker, assembler, preprocessor, etc) without any indication that
# you cannot feed such options to the gcc driver directly.  (For example, the
# linker takes a -z option, but you must type -Wl,-z for gcc.)  Instead, we
# ask the driver ("g++") for the name of the compiler ("cc1"), and parse the
# --help output of the compiler.
#
have gcc &&
_gcc()
{
	local cur cc backend

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	_expand || return 0

	case "$1" in
	gcj)
		backend=jc1
		;;
	gpc)
		backend=gpc1
		;;
	*77)
		backend=f771
		;;
	*)
		backend=cc1	# (near-)universal backend
		;;
	esac

	if [[ "$cur" == -* ]]; then
		cc=$( $1 -print-prog-name=$backend )
		# sink stderr:
		# for C/C++/ObjectiveC it's useless
		# for FORTRAN/Java it's an error
		COMPREPLY=( $( $cc --help 2>/dev/null | tr '\t' ' ' | \
			       sed -e '/^  *-/!d' -e 's/ *-\([^ ]*\).*/-\1/' | \
			       grep "^$cur" | sort -u ) )
	else
		_filedir
	fi
}
[ -n "${have:-}" ] && complete $filenames -F _gcc gcc g++ c++ g77 gcj gpc
[ $UNAME = GNU -o $UNAME = Linux ] && complete $filenames -F _gcc cc

# Linux cardctl(8) completion
#
have cardctl &&
_cardctl()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD -eq 1 ]; then
		COMPREPLY=( $( compgen -W 'status config ident suspend \
					   resume reset eject insert scheme' \
			       -- $cur ) )
	fi
}
[ -n "${have:-}" ] && complete -F _cardctl cardctl

# This function is required by _dpkg() and _dpkg-reconfigure()
#
have dpkg && {
_comp-dpkg-installed-packages()
{
	grep -B 2 'ok installed' /var/lib/dpkg/status | grep "Package: $1" | \
		cut -d\  -f2

}

# Debian dpkg(8) completion
#
_dpkg()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	_expand || return 0

	# find the last option flag
	if [[ $cur != -* ]]; then
		while [[ $prev != -* && $COMP_CWORD != 1 ]]; do
		      COMP_CWORD=$((COMP_CWORD-1))
		      prev=${COMP_WORDS[COMP_CWORD-1]}
		done
	fi

	case "$prev" in 
	-@(c|i|A|I|f|e|X|-@(install|unpack|record-avail|contents|info| \
			  fsys-tarfile|field|control|extract)))
		_filedir '?(u)deb'
		return 0
		;;
	-@(b|-build))
		_filedir -d
		return 0
		;;
   	-@(s|p|l|-@(status|print-avail|list)))
		COMPREPLY=( $( apt-cache pkgnames $cur 2>/dev/null ) )
		return 0
		;;
	-@(S|-search))
		_filedir
		return 0
		;;
	-@(r|L|-@(remove|purge|listfiles)))
		COMPREPLY=( $( _comp-dpkg-installed-packages $cur ) )
		return 0
		;;
	*)

	COMPREPLY=( $( compgen -W '-i --install --unpack -A --record-avail \
			--configure -r --remove --purge --get-selections \
			--set-selections --update-avail --merge-avail \
			--clear-avail  --command-fd --forget-old-unavail -s \
			--status -p --print-avail -L --listfiles -l --list \
			-S --search -C --audit --print-architecture \
			--print-gnu-build-architecture \
			--print-installation-architecture \
			--compare-versions --help --version --force-help \
			--force-all --force-auto-select --force-downgrade \
			--force-configure-any --force-hold --force-bad-path \
			--force-not-root --force-overwrite \
			--force-overwrite-diverted --force-bad-verify \
			--force-depends-version --force-depends \
			--force-confnew --force-confold --force-confdef \
			--force-confmiss --force-conflicts --force-architecture\
			--force-overwrite-dir --force-remove-reinstreq \
			--force-remove-essential -Dh \
			--debug=help --licence --admindir= --root= --instdir= \
			-O --selected-only -E --skip-same-version \
			-G --refuse-downgrade -B --auto-deconfigure \
			--no-debsig --no-act -D --debug= --status-fd \
			-b --build -I --info -f --field -c --contents \
			-x --extract -X --vextract --fsys-tarfile -e --control \
			--ignore-depends= --abort-after' -- $cur ) )
		;;
	esac


}
complete -F _dpkg $filenames dpkg dpkg-deb
}

# Debian GNU dpkg-reconfigure(8) completion
#
have dpkg-reconfigure &&
_dpkg_reconfigure()
{
	local cur prev opt

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}


	case "$prev" in
	    -@(f|-frontend))
		opt=( $( echo /usr/share/perl5/Debconf/FrontEnd/* ) )
		opt=( ${opt[@]##*/} )
		opt=( ${opt[@]%.pm} )
		COMPREPLY=( $( compgen -W '${opt[@]}' -- $cur ) )
		return 0
		;;
	    -@(p|-priority))
  		COMPREPLY=( $( compgen -W 'low medium high critical' -- $cur ) )
		return 0
		;;
	esac

	if [[ "$cur" == -* ]]; then
	    COMPREPLY=( $( compgen -W '-f --frontend -p --priority -a --all \
				       -u --unseen-only -h --help -s --showold \
				       --force --terse' -- $cur ) )
	else
	    COMPREPLY=( $( _comp-dpkg-installed-packages $cur ) )
	fi
}
[ -n "${have:-}" ] && complete -F _dpkg_reconfigure $default dpkg-reconfigure

# Debian Linux dselect(8) completion.
#
have dselect &&
_dselect()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
	     --admindir)
		  _filedir -d
		  ;;

	     -@(D|debug))
		  _filedir
		  ;;

	esac
		  COMPREPLY=( $( compgen -W  -- $cur ) )

	if [[ "$cur" == -* ]]; then
	    COMPREPLY=( $( compgen -W '--admindir --help --version --licence \
				  --license --expert --debug' -- $cur ) )
	else
	    COMPREPLY=( $( compgen -W 'access update select install config \
				  remove quit' -- $cur ) )
	fi


	return 0
}
[ -n "${have:-}" ] && complete -F _dselect $filenames dselect

# Java completion
#

# available path elements completion
have java && {
{
_java_path()
{
	cur=${cur##*:}
	_filedir '@(jar|zip)'
}

# exact classpath determination
_java_find_classpath()
{
	local i

	# search first in current options
	for (( i=1; i < COMP_CWORD; i++ )); do
		if [[ "${COMP_WORDS[i]}" == -@(cp|classpath) ]]; then
			classpath=${COMP_WORDS[i+1]}
			break
		fi
	done

	# default to environment
	[ -z "$classpath" ] && classpath=$CLASSPATH

	# default to current directory
	[ -z "$classpath" ] && classpath=.
}

# exact sourcepath determination
_java_find_sourcepath()
{
	local i

	# search first in current options
	for (( i=1; i < COMP_CWORD; i++ )); do
		if [[ "${COMP_WORDS[i]}" == -sourcepath ]]; then
			sourcepath=${COMP_WORDS[i+1]}
			break
		fi
	done

	# default to classpath
	[ -z "$sourcepath" ] && _java_find_classpath
	sourcepath=$classpath
}

# available classes completion
_java_classes()
{
	local classpath i

	# find wich classpath to use
	_java_find_classpath

	# convert package syntax to path syntax
	cur=${cur//.//}
	# parse each classpath element for classes
	for i in ${classpath//:/ }; do
		if [ -r $i ] && [[ "$i" == *.@(jar|zip) ]]; then
			if type zipinfo &> /dev/null; then
				COMPREPLY=( ${COMPREPLY[@]} $( zipinfo -1 $i |
				grep "^$cur" | grep -v "META-INF" |
				sed -e 's|\('$cur'[^/]*/\).*|\1|' | sort |
				uniq ) )
			else
				COMPREPLY=( ${COMPREPLY[@]} $( jar tf $i $cur |
				grep -v "META-INF" | sed -e \
				's|\('$cur'[^/]*/\).*|\1|' | sort | uniq ) )
			fi

		elif [ -d $i ]; then
			COMPREPLY=( ${COMPREPLY[@]} $( command ls -F -d \
				$i/$cur* 2>/dev/null | sed -e 's|^'$i'/||' ) )
		fi
	done
	# keep only packages and classes
	COMPREPLY=(
		$( echo ${COMPREPLY[@]} | tr " " "\n" | grep "/$")
		$( echo ${COMPREPLY[@]} | tr " " "\n" | grep "\.class$" | \
		   grep -v "\\$" )
	)
	# remove class extension
	COMPREPLY=( ${COMPREPLY[@]%.class} )
	# convert path syntax to package syntax
	COMPREPLY=( ${COMPREPLY[@]//\//.} )
}

# available packages completion
_java_packages()
{
	local sourcepath i

	# find wich sourcepath to use
	_java_find_sourcepath

	# convert package syntax to path syntax
	cur=${cur//.//}
	# parse each sourcepath element for packages
	for i in ${sourcepath//:/ }; do
		if [ -d $i ]; then
			COMPREPLY=( ${COMPREPLY[@]} $( command ls -F -d \
				$i/$cur* 2>/dev/null | sed -e 's|^'$i'/||' ) )
		fi
	done
	# keep only packages
	COMPREPLY=( $( echo ${COMPREPLY[@]} | tr " " "\n" | grep "/$" ) )
	# remove packages extension
	COMPREPLY=( ${COMPREPLY[@]%/} )
	# convert path syntax to package syntax
	cur=${COMPREPLY[@]//\//.}
}

# java completion
#
_java()
{
	local cur prev i

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	for ((i=1; i < $COMP_CWORD; i++)); do
		case ${COMP_WORDS[$i]} in
		    -cp|-classpath)
			continue # skip the classpath string.
			;;
		    -*)
			# this is an option, not a class/jarfile name.
			;;
		    *)
			# once we've seen a class, just do filename completion
			_filedir
			return 0
			;;
		esac
	done

	case $prev in
		-@(cp|classpath))
			_java_path
			return 0
			;;
	esac

	if [[ "$cur" == -* ]]; then
		# relevant options completion
		COMPREPLY=( $( compgen -W '-client -hotspot -server -classic \
				-cp -classpath -D -verbose -verbose:class \
				-verbose:gc -version:jni -version \
				-showversion -? -help -X -jar \
				-ea -enableassertions -da -disableassertions \
				-esa -enablesystemassertions \
				-dsa -disablesystemassertions ' -- $cur ) )
	else
		if [[ "$prev" == -jar ]]; then
			# jar file completion
			_filedir jar
		else
			# classes completion
			_java_classes
		fi
	fi
}
complete -F _java $filenames java
}

# javadoc completion
#
have javadoc &&
_javadoc()
{
	COMPREPLY=()
	local cur prev

	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case $prev in
		-@(overview|helpfile|stylesheetfile))
			_filedir
			return 0
			;;
		-d)
			_filedir -d
			return 0
			;;
		-@(classpath|bootclasspath|docletpath|sourcepath|extdirs))
			_java_path
			return 0
			;;
	esac

	if [[ "$cur" == -* ]]; then
		# relevant options completion
		COMPREPLY=( $( compgen -W '-overview -public -protected \
				-package -private -help -doclet -docletpath \
				-sourcepath -classpath -exclude -subpackages \
				-breakiterator -bootclasspath -source -extdirs \
				-verbose -locale -encoding -J -d -use -version \
				-author -docfilessubdirs -splitindex \
				-windowtitle -doctitle -header -footer -bottom \
				-link -linkoffline -excludedocfilessubdir \
				-group -nocomment -nodeprecated -noqualifier \
				-nosince -nodeprecatedlist -notree -noindex \
				-nohelp -nonavbar -quiet -serialwarn -tag \
				-taglet -tagletpath -charset -helpfile \
				-linksource -stylesheetfile -docencoding' -- \
				$cur ) )
	else
		# source files completion
		_filedir java
		# packages completion
		_java_packages
	fi
}
[ -n "${have:-}" ] && complete -F _javadoc $filenames javadoc

# javac completion
#
have javac &&
_javac()
{
	COMPREPLY=()
	local cur prev

	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case $prev in
		-d)
			_filedir -d
			return 0
			;;
		-@(classpath|bootclasspath|sourcepath|extdirs))
			_java_path
			return 0
			;;
	esac

	if [[ "$cur" == -* ]]; then
		# relevant options completion
		COMPREPLY=( $( compgen -W '-g -g:none -g:lines -g:vars\
		-g:source -O -nowarn -verbose -deprecation -classpath\
		-sourcepath -bootclasspath -extdirs -d -encoding -source\
		-target -help' -- $cur ) )
	else
		# source files completion
		_filedir java
	fi
}
[ -n "${have:-}" ] && complete -F _javac $filenames javac

# PINE address-book completion
#
have pine &&
_pineaddr()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	COMPREPLY=( $( compgen -W '$( awk "{print \$1}" ~/.addressbook 2>/dev/null)' \
			-- $cur ) )
}
[ -n "${have:-}" ] && complete -F _pineaddr $default pine

_configure_func()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	# if $COMP_CONFIGURE_HINTS is not null, then completions of the form
	# --option=SETTING will include 'SETTING' as a contextual hint
	[[ "$cur" != -* ]] && return 0

	if [ -n "$COMP_CONFIGURE_HINTS" ]; then
		COMPREPLY=( $( $1 --help | awk '/^  --[A-Za-z]/ { print $1; if ($2 ~ /--[A-Za-z]/) print $2 }' | sed -e 's/[,[].*//g' | grep ^$cur ) )

	else
		COMPREPLY=( $( $1 --help | awk '/^  --[A-Za-z]/ { print $1; if ($2 ~ /--[A-Za-z]/) print $2 }' | sed -e 's/[,=[].*//g' | grep ^$cur ) )
	fi
}
complete -F _configure_func $default configure

# urpmi media function required by other urpmi functions
#
have urpmq && {
_urpmi_media()
{
	local media
	# first try new urpmq option to get media list
	media=$( urpmq --list-media 2>/dev/null ) 
	# default to old manual media extraction
	[ -z "$media" ] && media=( $( sed -ne "s/^\(.\+\) \(\(file\|removable\|ftp\|http\):\/\/.*\)\? {$/\1/p" /etc/urpmi/urpmi.cfg | grep "^${cur//\\\\/\\\\}" ) )
	# return list of available media
	COMPREPLY=( $( echo $media | tr " " "\n" | grep "^$cur" ) )
}

_urpmi_packages()
{
	local packages media
	# find if a particular media has been specified
	for (( i=1; i < COMP_CWORD; i++ )); do
		if [[ "${COMP_WORDS[i]}" == --media ]]; then
			media=${COMP_WORDS[i+1]}
			break
		fi
	done

	# first try new urpmq option to get package list
	packages=$( urpmq --media $media --list 2>/dev/null ) 
	# default to old manual database extraction
	[ -z "$packages" ] && packages=$( gzip -dc /var/lib/urpmi/synthesis.hdlist.$media* | awk -F'@' '/info/ {print $1}' )
	# return list of available packages
	COMPREPLY=( $( echo $packages | tr " " "\n" | grep "^$cur" ) )
}

_urpmi_aliases()
{
	# return list of available nodes
	COMPREPLY=( $( urpmq --list-aliases 2>/dev/null | grep "^$cur" ) )
}
}

# Mandrake urpmi completion
#
have urpmi &&
_urpmi()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
		--media)
			_urpmi_media
			return 0
			;;
		--parallel)
			_urpmi_aliases
			return 0
			;;
	esac

	if [[ "$cur" == -* ]]; then
		# return list of available options
		COMPREPLY=( $( compgen -W '-a -p -P -y -s -q -v --help \
			--update --media --synthesis --auto --auto-select \
			--fuzzy --src --clean --noclean --force --allow-nodeps \
			--allow-force --parallel --wget --curl --proxy \
			--proxy-user --bug --env --X --best-output \
			--verify-rpm --test' -- $cur ) )
	else
		# return rpm files and available packages
		_urpmi_packages
		_filedir rpm
	fi
}
[ -n "${have:-}" ] && complete -F _urpmi urpmi

# Mandrake urpmq completion
#
have urpmq &&
_urpmq()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
		--media)
			_urpmi_media
			return 0
			;;
		--parallel)
			_urpmi_nodes
			return 0
			;;
	esac

	if [[ "$cur" == -* ]]; then
		# return list of available options
		COMPREPLY=( $( compgen -W '-h -v -d -u -c -P -y -s -g -r -f \
			--help --update --media --synthesis --auto-select \
			--fuzzy --all --list --list-media --list-nodes \
			--list-aliases --src --headers --sources --force \
			--parallel --wget --curl --proxy --proxy-user' -- $cur))
	else
		# return rpm files and available packages
		_urpmi_packages
		_filedir rpm
	fi
}
[ -n "${have:-}" ] && complete -F _urpmq urpmq

# Mandrake urpme completion
#
have urpme &&
_urpme()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [[ "$cur" == -* ]]; then
		# return list of available options
		COMPREPLY=( $( compgen -W '-a --help --auto' -- $cur ) )
	else
		# return list of available packages
		_rpm_installed_packages
	fi
}
[ -n "${have:-}" ] && complete -F _urpme urpme

# Mandrake urpmf completion
#
have urpmf &&
_urpmf()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [[ "$cur" == -* ]]; then
		# return list of available options
		COMPREPLY=( $( compgen -W '--help --quiet --all --name \
			--group --size --serial --summary --description \
			--provides --requires --files --conflicts --obsoletes \
			--prereqs' -- $cur ) )
	else
		# return available files
		_filedir
	fi
}
[ -n "${have:-}" ] && complete -F _urpmf urpmf

# Mandrake urpmi.update completion
#
have urpmi.update &&
_urpmi_update()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [[ "$cur" == -* ]]; then
		# return list of available options
		COMPREPLY=( $( compgen -W '-a -c -d -f --help --curl --wget \
		--proxy --proxy-user' -- $cur))
	else
		# return list of available media
		_urpmi_media
	fi
}
[ -n "${have:-}" ] && complete -F _urpmi_update urpmi.update

# Mandrake urpmi.addmedia completion
#
have urpmi.addmedia &&
_urpmi_addmedia()
{
	local cur i args

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [[ "$cur" == -* ]]; then
		# return list of available options
		COMPREPLY=( $( compgen -W '-c -h -f --help --wget --curl \
			--proxy --proxy-user --update --distrib' -- $cur ) )
	else
		# count number of mandatory args given sofar
		args=$COMP_CWORD
		for (( i=1; i < COMP_CWORD; i++ )); do
			if [[ "${COMP_WORDS[i]}" == -* ]]; then
				args=$(($args-1))
			fi
		done
		case $args in
			1)
				# return list of available media
				_urpmi_media
				;;
			2)
				# return list of available protocols
				COMPREPLY=( $( compgen -W 'file:// http:// \
					       ftp:// removable://' -- $cur ) )
				;;
			3)
				# return word "with"
				COMPREPLY=( 'with' )
				;;
		esac
	fi
}
[ -n "${have:-}" ] && complete -F _urpmi_addmedia urpmi.addmedia

# Mandrake urpmi.removemedia completion
#
have urpmi.removemedia &&
_urpmi_removemedia()
{
	local cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [[ "$cur" == -* ]]; then
		# if word begins with a dash, return list of available options
		COMPREPLY=( $( compgen -W '-a -c --help' -- $cur ) )
	else
		# elsewhere, return list of available media
		_urpmi_media
	fi

}
[ -n "${have:-}" ] && complete -F _urpmi_removemedia urpmi.removemedia

# Debian reportbug(1) completion
#
have reportbug &&
_reportbug()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
	    -f|--filename|-i|--include|--mta|-o|--output)
		_filedir
		return 0
		;;
	    -B|--bts)
		COMPREPLY=( $( compgen -W "debian guug kde mandrake help" -- \
			       $cur ))
		return 0
		;;
	    -e|--editor|--mua)
		COMP_WORDS=(COMP_WORDS[0] $cur)
		COMP_CWORD=1
		_command
		return 0
		;;
	    --mode)
		COMPREPLY=( $( compgen -W "novice standard expert" -- $cur ) )
		return 0
		;;
	    -S|--severity)
		COMPREPLY=( $( compgen -W "grave serious important normal \
					   minor wishlist" -- $cur ) )
		return 0
		;;
	    -u|--ui|--interface)
		COMPREPLY=( $( compgen -W "newt text gnome" -- $cur ) )
		return 0
		;;
	    -t|--type)
		COMPREPLY=( $( compgen -W "gnats debbugs" -- $cur ) )
		return 0
		;;
	    -T|--tags)
		COMPREPLY=( $( compgen -W "none patch security upstream sid \
					   woody potato sarge fixed" -- $cur ) )
		return 0
		;;
	    *)
		;;
	esac
	
	COMPREPLY=($( compgen -W '-h --help -v --version -a --af -b \
			--no-query-bts --query-bts -B --bts -c --configure \
			--no-config-files --check-available -d --debug \
			--no-check-available -e --editor --email -f \
			--filename -g --gnupg -H --header -i --include -j \
			--justification -l --ldap --no-ldap -L --list-cc -m \
			--maintonly --mode --mua --mta --mutt -n --mh --nmh \
			-o --output -p --print -P --pgp --proxy --http_proxy\
			-q --quiet -Q --query-only --realname --report-quiet \
			--reply-to --replyto -s --subject -S --severity \
			--smtphost -t --type -T --tags --template -V -x \
			--no-cc --package-version -z --no-compress \
			--ui --interface -u \
			wnpp boot-floppies kernel-image' -- $cur ) \
	    		$( apt-cache pkgnames -- $cur ) )
	_filedir
	return 0
}
[ -n "${have:-}" ] && complete -F _reportbug $filenames reportbug

# Debian querybts(1) completion
#
have querybts &&
_querybts()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
	    -B|--bts)
		COMPREPLY=( $( compgen -W "debian guug kde mandrake help" -- \
			       $cur ))
		return 0
		;;
	    -u|--ui|--interface)
		COMPREPLY=($( compgen -W "newt text gnome" -- $cur ))
		return 0
		;;
	    *)
		;;
	esac

	COMPREPLY=($( compgen -W '-h --help -v --version -A --archive \
			-B --bts -l --ldap --no-ldap --proxy= --http_proxy= \
			-s --source -w --web -u --ui --interface \
			wnpp boot-floppies' -- $cur ) \
	    		$( apt-cache pkgnames -- $cur ) )
}
[ -n "${have:-}" ] && complete -F _querybts $filenames querybts

# update-alternatives completion
#
have update-alternatives &&
_update_alternatives()
{
	installed_alternatives()
	{
		local admindir
		# find wich admin dir to use
		if [ -f /etc/debian_version ]; then
			admindir=/var/lib/dpkg/alternatives
		else
			admindir=/var/lib/rpm/alternatives
		fi
		for (( i=1; i < COMP_CWORD; i++ )); do
			if [[ "${COMP_WORDS[i]}" == --admindir ]]; then
				admindir=${COMP_WORDS[i+1]}
				break
			fi
		done
		COMPREPLY=( $( command ls $admindir | grep "^$cur" ) )
	}

	local cur prev mode args

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
	--@(altdir|admindir))
		_filedir -d
		return 0
		;;
	--@(help|version))
		return 0
		;;
	esac

	# find wich mode to use and how many real args used so far
	for (( i=1; i < COMP_CWORD; i++ )); do
		if [[ "${COMP_WORDS[i]}" == --@(install|remove|auto|display|config) ]]; then
			mode=${COMP_WORDS[i]}
			args=$(($COMP_CWORD - i))
			break
		fi
	done

	case $mode in
	--install)
		case $args in
		1)
			_filedir
			;;
		2)
			installed_alternatives
			;;
		3)
			_filedir
			;;
		esac
		;;
	--remove)
		case $args in
		1)
			installed_alternatives
			;;
		2)
			_filedir
			;;
		esac
		;;
	--auto)
		installed_alternatives
		;;
	--display)
		installed_alternatives
		;;
	--config)
		installed_alternatives
		;;
	*)
		COMPREPLY=( $( compgen -W '--verbose --quiet --help --version \
			       --altdir --admindir' -- $cur ) \
			    $( compgen -W '--install --remove --auto --display \
			       --config' -- $cur ) )
	esac
}
[ -n "${have:-}" ] && complete -F _update_alternatives update-alternatives

# Python completion
#
have python &&
_python()
{
	local prev cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
	-Q)
		COMPREPLY=( $( compgen -W "old new warn warnall" -- $cur ) )
		return 0
		;;
	-W)
		COMPREPLY=( $( compgen -W "ignore default all module once error" -- $cur ) )
		return 0
		;;
	-c)
		_filedir '@(py|pyc|pyo)'
		return 0
		;;
	!(python|-?))
		[[ ${COMP_WORDS[COMP_CWORD-2]} != -@(Q|W) ]] && _filedir
		;;
	esac


	# if '-c' is already given, complete all kind of files.
	for (( i=0; i < ${#COMP_WORDS}-1; i++ )); do
		if [[ ${COMP_WORDS[i]} == -c ]]; then
			_filedir
		fi
	done


	if [[ "$cur" != -* ]]; then
		_filedir '@(py|pyc|pyo)'
	else
		COMPREPLY=( $( compgen -W "- -d -E -h -i -O -Q -S -t -u \
					   -U -v -V -W -x -c" -- $cur ) )
	fi



	return 0
}
[ -n "${have:-}" ] && complete -F _python $filenames python

# Perl completion
#
have perl &&
{
_perlmodules()
{
    COMPREPLY=( $( compgen -P "$prefix" -W "$( perl -e 'sub mods { my ($base,$dir)=@_; return if  $base !~ /^\Q$ENV{cur}/; chdir($dir) or return; for (glob(q[*.pm])) {s/\.pm$//; print qq[$base$_\n]}; mods(/^(?:[.\d]+|$Config{archname}-$Config{osname}|auto)$/ ? undef : qq[${base}${_}\\\\:\\\\:],qq[$dir/$_]) for grep {-d} glob(q[*]); } mods(undef,$_) for @INC;' )" -- $cur ) )
}

_perl()
{
    local cur prev prefix temp

    COMPREPLY=()
    cur=${COMP_WORDS[COMP_CWORD]}
    prev=${COMP_WORDS[COMP_CWORD-1]}
    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

    # only handle module completion for now
    case "$prev" in
	-m|-M)
	    _perlmodules
	    return 0
	    ;;
    esac

    # handle case where first parameter is not a dash option
    if [ $COMP_CWORD -eq 1 ] && [[ "$cur" != -* ]]; then
	_filedir -d
	return 0
    fi

    # complete using basic options
    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 ) )
    return 0
}
complete -F _perl $default perl

_perldoc()
{
    local cur prev prefix temp

    COMPREPLY=()
    cur=${COMP_WORDS[COMP_CWORD]}
    prev=${COMP_WORDS[COMP_CWORD-1]}
    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)
	    COMPREPLY=( $( compgen -W 'chomp chop chr crypt hex index lc \
	    lcfirst length oct ord pack q qq reverse rindex sprintf \
	    substr tr uc ucfirst y m pos quotemeta s split study qr abs \
	    atan2 cos exp hex int log oct rand sin sqrt srand pop push \
	    shift splice unshift grep join map qw reverse sort unpack \
	    delete each exists keys values binmode close closedir \
	    dbmclose dbmopen die eof fileno flock format getc print \
	    printf read readdir rewinddir seek seekdir select syscall \
	    sysread sysseek syswrite tell telldir truncate warn write \
	    pack read syscall sysread syswrite unpack vec -X chdir chmod \
	    chown chroot fcntl glob ioctl link lstat mkdir open opendir \
	    readlink rename rmdir stat symlink umask unlink utime caller \
	    continue die do dump eval exit goto last next redo return \
	    sub wantarray caller import local my our package use defined \
	    dump eval formline local my our reset scalar undef wantarray \
	    alarm exec fork getpgrp getppid getpriority kill pipe qx \
	    setpgrp setpriority sleep system times wait waitpid do \
	    import no package require use bless dbmclose dbmopen package \
	    ref tie tied untie use accept bind connect getpeername \
	    getsockname getsockopt listen recv send setsockopt shutdown \
	    socket socketpair msgctl msgget msgrcv msgsnd semctl semget \
	    semop shmctl shmget shmread shmwrite endgrent endhostent \
	    endnetent endpwent getgrent getgrgid getgrnam getlogin \
	    getpwent getpwnam getpwuid setgrent setpwent endprotoent \
	    endservent gethostbyaddr gethostbyname gethostent \
	    getnetbyaddr getnetbyname getnetent getprotobyname \
	    getprotobynumber getprotoent getservbyname getservbyport \
	    getservent sethostent setnetent setprotoent setservent \
	    gmtime localtime time times' -- $cur ) )
	    return 0
	    ;;
    esac

    case $cur in
	-*)
	    COMPREPLY=( $( compgen -W '-h -v -t -u -m -l -F -X -f -q' -- $cur ))
	    return 0
	    ;;
	*)
	    _perlmodules
	    COMPREPLY=( ${COMPREPLY[@]} $( compgen -W '$( PAGER=cat man perl | sed -ne "/perl.*Perl overview/,/perlwin32/s/^[^a-z0-9]*\([a-z0-9]*\).*$/\1/p")' -- $cur ) )

	    return 0
	    ;;
    esac
}
complete -F _perldoc $default perldoc
}

# rcs(1) completion
#
have rcs &&
_rcs()
{
	local cur prev file dir

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	file=${cur##*/}
	dir=${cur%/*}

	# deal with relative directory
	[ "$file" = "$dir" ] && dir=.

	COMPREPLY=( $( compgen -f "$dir/RCS/$file" ) )

	for (( i=0; i < ${#COMPREPLY[@]}; i++ )); do
		file=${COMPREPLY[$i]##*/}
		file=${file%,v}
		dir=${COMPREPLY[$i]%RCS/*}
		COMPREPLY[$i]=$dir$file
	done

	# default to files if nothing returned and we're checking in.
	# otherwise, default to directories
	[ ${#COMPREPLY[@]} -eq 0 -a $1 = ci ] && _filedir || _filedir -d
}
[ -n "${have:-}" ] && complete -F _rcs $filenames ci co rlog rcs rcsdiff

# lilo(8) completion
#
have lilo &&
_lilo()
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case $prev in
		-@(C|i|m|s|S))
			_filedir
			return 0
			;;
		-r)
			_filedir -d
			return 0
			;;
		-@(I|D|R))
			# label completion
			COMPREPLY=( $( awk -F'=' '/label/ {print $2}' \
					/etc/lilo.conf | grep "^$cur" ) )
			return 0
			;;
		-@(A|b|M|u|U))
			# device completion
			cur=${cur:=/dev/}
			_filedir
			return 0
			;;
		-T)
			# topic completion
			COMPREPLY=( $( compgen -W 'help ChRul EBDA geom geom= \
					table= video' -- $cur ) )
			return 0
			;;
	esac

	if [[ "$cur" == -* ]]; then
		# relevant options completion
		COMPREPLY=( $( compgen -W '-A -b -c -C -d -f -g -i -I -l -L -m \
			-M -p -P -q -r -R -s -S -t -T -u -U -v -V -w -x -z' -- \
			$cur ) )
	fi
}
[ -n "${have:-}" ] && complete -F _lilo lilo

# links completion
#
have links &&
_links()
{
	local cur
  
	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
  
	case "$cur" in
	    --*)
		COMPREPLY=( $( compgen -W '--help' -- $cur ) )
		;;
	    -*)
		COMPREPLY=( $( compgen -W '-async-dns -max-connections \
				-max-connections-to-host -retries \
				-receive-timeout -unrestartable-receive-timeout\
				-format-cache-size -memory-cache-size \
				-http-proxy -ftp-proxy -download-dir \
				-assume-codepage -anonymous -dump -no-connect \
				-source -version -help' -- $cur ) )
		;;
	    *)
		if [ -r ~/.links/links.his ]; then
		    COMPREPLY=( $( compgen -W '$( < ~/.links/links.his )' \
				   -- $cur ) )
		fi
				_filedir '@(htm|html)'
				return 0
		;;
	esac
  
	return 0
}
[ -n "${have:-}" ] && complete -F _links $filenames links

[ $UNAME = FreeBSD ] && {
# FreeBSD package management tool completion
#
_pkg_delete()
{
	local cur pkgdir prev

	pkgdir=${PKG_DBDIR:-/var/db/pkg/}
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	test "$prev" = "-o" -o "$prev" = "-p" -o "$prev" = "-W" && return 0

	COMPREPLY=( $( compgen -d $pkgdir$cur ) )
	COMPREPLY=( ${COMPREPLY[@]#$pkgdir} )

	return 0
}
complete -F _pkg_delete $dirnames pkg_delete pkg_info

# FreeBSD kernel module commands
#
_kldload()
{
	local cur moddir

	moddir=/modules/
	cur=${COMP_WORDS[COMP_CWORD]}

	COMPREPLY=( $( compgen -f $moddir$cur ) )
	COMPREPLY=( ${COMPREPLY[@]#$moddir} )
	COMPREPLY=( ${COMPREPLY[@]%.ko} )

	return 0
}
complete -F _kldload $filenames kldload

_kldunload()
{
	local cur
	cur=${COMP_WORDS[COMP_CWORD]}
	COMPREPLY=( $(kldstat | sed -ne "s/^.*[ \t]\+\($cur[a-z_]\+\).ko$/\1/p") )
}
complete -F _kldunload $filenames kldunload
}

# FreeBSD portupgrade completion
#
have portupgrade &&
_portupgrade()
{
	local cur pkgdir prev

	pkgdir=${PKG_DBDIR:-/var/db/pkg/}
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	test "$prev" = "-l" -o "$prev" = "-L" -o "$prev" = "-o" && return 0

	COMPREPLY=( $( compgen -d $pkgdir$cur ) )
	COMPREPLY=( ${COMPREPLY[@]#$pkgdir} )
	COMPREPLY=( ${COMPREPLY[@]%-*} )

	return 0
}
[ -n "${have:-}" ] && complete -F _portupgrade $dirnames portupgrade

# Slackware Linux removepkg completion
#
have removepkg && [ -f /etc/slackware-version ] &&
_removepkg()
{
	local packages cur

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	COMPREPLY=( $( (cd /var/log/packages; compgen -f -- "$cur") ) )
}
[ -n "${have:-}" ] && complete -F _removepkg $filenames removepkg &&
	complete $dirnames -f -X '!*.tgz' installpkg upgradepkg explodepkg

# look(1) completion
#
have look && 
_look()
{
	local cur
  
	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	if [ $COMP_CWORD = 1 ]; then
		COMPREPLY=( $( compgen -W '$(look $cur)' ) )
	fi
}
[ -n "${have:-}" ] && complete -F _look $default look

# ypcat(1) and ypmatch(1) completion
#
have ypmatch &&
_ypmatch()
{
	local cur map

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	[ $1 = ypcat ] && [ $COMP_CWORD -gt 1 ] && return 0
	[ $1 = ypmatch ] && [ $COMP_CWORD -gt 2 ] && return 0

	if [ $1 = ypmatch ] && [ $COMP_CWORD -eq 1 ] && \
	   [ ${#COMP_WORDS[@]} -eq 3 ]; then
		map=${COMP_WORDS[2]}
		COMPREPLY=( $( compgen -W '$( ypcat $map | \
						cut -d':' -f 1 )' -- $cur) )
	else
		[ $1 = ypmatch ] && [ $COMP_CWORD -ne 2 ] && return 0
		COMPREPLY=( $( compgen -W \
			      '$( echo $(ypcat -x | cut -d"\"" -f 2))' -- $cur))
	fi

	return 0
}
[ -n "${have:-}" ] && complete -F _ypmatch ypmatch ypcat

# mplayer(1) completion
#
have mplayer && {
_mplayer_options_list()
{
	COMPREPLY=( $( $1 $2 help 2> /dev/null | \
		sed -e '1,/^Available/d' | awk '{print $1}' | \
		sed -e 's/:$//' -e 's/^'${2#-}'$//' | grep "^$cur" ) )
}

_mplayer()
{
	local cmd cur prev

	COMPREPLY=()
	cmd=${COMP_WORDS[0]}
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
		-@(ac|afm|vc|vfm|ao|vo|vop))
			_mplayer_options_list mplayer $prev
			return 0
			;;
		-@(oac|ovc))
			_mplayer_options_list mencoder $prev
			return 0
			;;
		-audiofile)
			_filedir '@(mp3|MP3|mpg|MPG|ogg|OGG|wav|WAV)'
			return 0
			;;
		-font)
			_filedir '@(desc|ttf)'
			return 0
			;;
		-sub)
			_filedir '@(srt|SRT|sub|SUB|txt|TXT|utf|UTF)'
			return 0
			;;
		-aop)
			COMPREPLY=( $( compgen -W 'list= delay= format= fout= \
					volume= mul= softclip' -- $cur ) )
			return 0
			;;
		-dxr2)
			COMPREPLY=( $( compgen -W 'ar-mode= iec958-encoded \
					iec958-decoded mute ucode= 75ire bw \
					color interlaced macrovision= norm= \
					square-pixel ccir601-pixel cr-left= \
					cr-right= cr-top= cr-bot= ck-min= \
					ck-rgbmin= ck-max= ck-rgbmax= ck= \
					ck-rgb= ignore-cache= ol-osd= ol-cor= \
					olhwxy-cor= overlay overlay-ratio= \
					update-cache' -- $cur ) )
			return 0
			;;
		-tv)
			COMPREPLY=( $( compgen -W 'on noaudio driver= device= \
					input= frequ= outfmt= width= height= \
					buffersize= norm= channel= chanlist= \
					audiorate= forceaudio alsa amode= \
					forcechan= adevice= audioid= volume= \
					bass= treble= balance=' -- $cur ) )
			return 0
			;;
		-mf)
			COMPREPLY=( $( compgen -W 'on w= h= fps= type=' -- $cur ) )
			return 0
			;;
		-cdda)
			COMPREPLY=( $( compgen -W 'speed= paranoia= \
					generic-dev= sector-size= overlap= \
					toc-bias toc-offset= skip noskip' \
					-- $cur ) )
			return 0
			;;
		-input)
			COMPREPLY=( $( compgen -W 'conf= ar-delay ar-rate \
					keylist cmdlist js-dev file' -- $cur ) )
			return 0
			;;
		-af)
			COMPREPLY=( $( compgen -W 'resample= channels= format= \
					volume= delay=' -- $cur ) )
			return 0
			;;
		-af-adv)
			COMPREPLY=( $( compgen -W 'force= list=' -- $cur ) )
			return 0
			;;
	esac

	case "$cur" in
		--*)
			COMPREPLY=( $( compgen -W '--help --verbose' -- $cur ) )
			;;
		-*)
			COMPREPLY=( $( compgen -W '-aid -alang -audio-demuxer \
					-audiofile -cdrom-device -cache -cdda \
					-channels -chapter -csslib -demuxer \
					-dvd -dvd-device -dvdangle -dvdauth \
					-dvdkey -dvdnav -forceidx -fps -frames \
					-hr-mp3-seek -idx -mc -mf -ni -nobps \
					-passwd -rawaudio -rtsp-stream-over-tcp\
					-skipopening -sb -srate -ss -tv -user \
					-vcd -vid -vivo -ifo -ffactor -font \
					-noautosub -nooverlapsub -sid -slang \
					-sub -subcc -subcp -sub-demuxer \
					-subdelay -subfont-autoscale \
					-subfont-blur -subfont-encoding \
					-subfont-osd-scale -subfont-outline \
					-subfont-text-scale -subfps -subfile \
					-subpos -unicode -utf8 -vobsub \
					-vobsubid -ac -afm -aspect -flip \
					-lavdopts -noaspect -nosound -pp -ssf \
					-stereo -sws -vc -vfm -vop -x -xvidopts\
					-xy -zoom' -- $cur ) )
			# add mplayer specific options
			[[ "$cmd" == @(?(g)mplayer) ]] && COMPREPLY=( ${COMPREPLY[@]} \
				$(compgen -W '-autoq -autosync -benchmark \
					-framedrop -h -help -hardframedrop \
					-identify -input -lircconf -loop \
					-nojoystick -nolirc -nortc -playlist \
					-quiet -really-quiet -rnd -sdp -skin \
					-slave -softsleep -speed -sstep \
					-use-stdin -dumpaudio -dumpfile \
					-dumpstream -dumpvideo -dumpmicrodvdsub\
					-dumpmpsub -dumpsrtsub -dumpjacosub \
					-dumpsami -dumpsub -osdlevel -af \
					-af-adv -ao -aofile -aop -delay -mixer \
					-nowaveheader -bpp -brightness \
					-contrast -display -double -dr -dxr2 \
					-fb -fbmode -fbmodeconfig -forcexv -fs \
					-geometry -hue -icelayer -jpeg \
					-monitor_dotclock -monitor_hfreq \
					-monitor_vfreq -monitoraspect \
					-nograbpointer -noslices -panscan \
					-rootwin -saturation -screenw -screenh \
					-stop_xscreensaver -vm -vo -vsync -wid \
					-xineramascreen -z -zrbw -zrcrop \
					-zrdev -zrfd -zrhelp -zrnorm -zrquality\
					-zrvdec -zrhdec -zrxdoff -zrydoff -y' \
					-- $cur) )
			# add mencoder specific options
			[[ "$cmd" = mencoder ]] && COMPREPLY=( ${COMPREPLY[@]} \
				$(compgen -W '-audio-density -audio-delay \
					-audio-preload -divx4opts -endpos \
					-ffourcc -include -info -lameopts \
					-lavcopts -noskip -o -oac -ofps -ovc \
					-passlogfile -skiplimit -vobsubout \
					-vobsuboutindex -vobsuboutid \
					-xvidencopts' -- $cur) )
			;;
		*)
			_filedir '@(mpg|mpeg|MPG|MPEG|wma|avi|AVI|asf|vob|bin|vcd|ps|pes|fli|viv|rm|ram|yuv|mov|wmv|mp3|MP3|ogg|OGG|ogm|OGM|mp4|MP4|wav|WAV)'
			;;
	esac

	return 0
}
}
[ -n "${have:-}" ] && complete $filenames -F _mplayer mplayer mencoder gmplayer

# wvdial(1) completion
#
have wvdial &&
_wvdial()
{
	local cur prev configfile i

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case $prev in
		--config)
			_filedir
			return 0
			;;
	esac

	case $cur in
		-*)
			COMPREPLY=( $( compgen -W '--config --chat \
				--remotename --help --version --no-syslog' -- $cur ) )
			;;
		*)
			# find which config file to use
			configfile=/etc/wvdial.conf
			for (( i=1; i < COMP_CWORD; i++ )); do
				if [[ "${COMP_WORDS[i]}" == $1 ]]; then
					configfile=${COMP_WORDS[i+1]}
					break
				fi
			done
			[ ! -f $configfile ] && return 0
			# parse config file for sections
			COMPREPLY=( $( awk '/\[Dialer .+\]/ {print $0}' $configfile |\
				sed -e '1d' -e 's/^\[Dialer //' -e 's/\]$//' | grep "^$cur" ) )
			;;
	esac

}
[ -n "${have:-}" ] && complete -F _wvdial wvdial

# gpg(1) completion
#
have gpg &&
_gpg() 
{
	local cur prev

	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}
	prev=${COMP_WORDS[COMP_CWORD-1]}

	case "$prev" in
		-@(s|-sign|-clearsign|-decrypt-files|-load-extension)) 
			_filedir
			return 0
			;;
		--@(export|@(?(l|nr|nrl)sign|edit)-key)) 
			# return list of public keys
			COMPREPLY=( $( compgen -W "$( gpg --list-keys 2>/dev/null | sed -ne 's@^pub.*/\([^ ]*\).*$@\1@p')" -- "$cur"))
			return 0
			;;
	esac

	if [[ "$cur" == -* ]]; then
		COMPREPLY=( $( compgen -W '-s -b -e -f -c -d -a -r -u -Z -o -v \
				-q -n -N --sign --clearsign --detach-sign \
				--encrypt --encrypt-files --symmetric --store \
				--decrypt --decrypt-files --verify --list-keys \
				--list-sigs --check-sigs --fingerprint \
				--list-secret-keys --gen-key --delete-keys \
				--delete-secret-keys --sign-key --lsign-key \
				--nrsign-key --nrlsign-key --edit-key \
				--gen-revoke --export --send-key --recv-keys \
				--search-keys --refresh-keys --import \
				--list-packets --export-ownertrust \
				--import-ownertrust --update-trustdb \
				--check-trustdb --fix-trustdb --dearmor \
				--enarmor --print-md --armor --recipient \
				--default-recipient --default-recipient-self \
				--local-user --textmode --output --verbose \
				--quiet --no-tty --force-v3-sigs \
				--no-force-v3-sigs --force-v4-certs \
				--no-force-v4-certs --force-mdc --disable-mdc \
				--dry-run --use-agent --batch --yes --no \
				--keyring --secret-keyring --show-keyring \
				--default-key --keyserver --charset --options \
				--status-fd --trusted-key --load-extension \
				--rfc1991 --openpgp --pgp2 --s2k-mode \
				--s2k-digest-algo --s2k-cipher-algo \
				--cipher-algo --digest-algo --compress-algo \
				--throw-keyid --show-photos --no-show-photos \
				--photo-viewer --notation-data' -- $cur ) )
	 fi

}
[ "${have:-}" ] && complete -F _gpg $default gpg

_filedir_xspec()
{
	local IFS cur xspec

	IFS=$'\t\n'
	COMPREPLY=()
	cur=${COMP_WORDS[COMP_CWORD]}

	_expand || return 0

	# get first exclusion compspec that matches this command
	xspec=$( sed -ne '/ '${1##*/}'/{p;q;}' $BASH_COMPLETION )
	# prune to leave nothing but the -X spec
	xspec=${xspec#*-X }
	xspec=${xspec%% *}

	COMPREPLY=( $( eval compgen -f -X "$xspec" -- \
		    \"${cur#[\`\"\']}\" 2>/dev/null ) \
		    $( compgen -d -- $cur ) )
}
list=( $( sed -ne '/^# START exclude/,/^# FINISH exclude/p' \
	  $BASH_COMPLETION | \
	# read exclusion compspecs
	(
	while read line
	do
		# ignore compspecs that are commented out
		if [ "${line#\#}" != "$line" ]; then continue; fi
		line=${line%# START exclude*}
		line=${line%# FINISH exclude*}
		line=${line##*\'}
		list=( ${list[@]:-} $line )
	done
	echo ${list[@]}
	)
     ) )
# remove previous compspecs
if [ ${#list[@]} -gt 0 ]; then
    eval complete -r ${list[@]}
    # install new compspecs
    eval complete -F _filedir_xspec $filenames ${list[@]}
fi
unset list[@]

# source completion directory definitions
if [ -d $BASH_COMPLETION_DIR -a -r $BASH_COMPLETION_DIR -a \
     -x $BASH_COMPLETION_DIR ]; then
	for i in $BASH_COMPLETION_DIR/*; do
		[[ ${i##*/} != @(*~|*.bak|*.swp|\#*\#|*.dpkg*) ]] &&
			[ -f $i -a -r $i ] && . $i
	done
fi
unset i

# source user completion file
[ $BASH_COMPLETION != ~/.bash_completion -a -r ~/.bash_completion ] \
	&& . ~/.bash_completion
unset -f have
unset UNAME RELEASE have default dirnames filenames nospace

###  Local Variables:
###  mode: shell-script
###  End: