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[grml-etc-core.git] / etc / zsh / zshrc

# Filename:      zshrc
# Purpose:       config file for zsh (z shell)
# Authors:       grml-team (grml.org), (c) Michael Prokop <mika@grml.org>
# Bug-Reports:   see http://grml.org/bugs/
# License:       This file is licensed under the GPL v2.
# Latest change: Mon Feb 11 18:00:55 CET 2008 [mika]
################################################################################
# This file is sourced only for interactive shells. It
# should contain commands to set up aliases, functions,
# options, key bindings, etc.
#
# Global Order: zshenv, zprofile, zshrc, zlogin
################################################################################

# zsh-refcard-tag documentation: {{{
#   You may notice strange looking comments in the zshrc (and ~/.zshrc as
#   well). These are there for a purpose. grml's zsh-refcard can now be
#   automatically generated from the contents of the actual configuration
#   files. However, we need a little extra information on which comments
#   and what lines of code to take into account (and for what purpose).
#
# Here is what they mean:
#
# List of tags (comment types) used:
#   #a#     Next line contains an important alias, that should
#           be included in the grml-zsh-refcard.
#           (placement tag: @@INSERT-aliases@@)
#   #f#     Next line contains the beginning of an important function.
#           (placement tag: @@INSERT-functions@@)
#   #v#     Next line contains an important variable.
#           (placement tag: @@INSERT-variables@@)
#   #k#     Next line contains an important keybinding.
#           (placement tag: @@INSERT-keybindings@@)
#   #d#     Hashed directories list generation:
#               start   denotes the start of a list of 'hash -d'
#                       definitions.
#               end     denotes its end.
#           (placement tag: @@INSERT-hasheddirs@@)
#   #A#     Abbreviation expansion list generation:
#               start   denotes the beginning of abbreviations.
#               end     denotes their end.
#           Lines within this section that end in '#d .*' provide
#           extra documentation to be included in the refcard.
#           (placement tag: @@INSERT-abbrev@@)
#   #m#     This tag allows you to manually generate refcard entries
#           for code lines that are hard/impossible to parse.
#               Example:
#                   #m# k ESC-h Call the run-help function
#               That would add a refcard entry in the keybindings table
#               for 'ESC-h' with the given comment.
#           So the syntax is: #m# <section> <argument> <comment>
#   #o#     This tag lets you insert entries to the 'other' hash.
#           Generally, this should not be used. It is there for
#           things that cannot be done easily in another way.
#           (placement tag: @@INSERT-other-foobar@@)
#
#   All of these tags (except for m and o) take two arguments, the first
#   within the tag, the other after the tag:
#
#   #<tag><section># <comment>
#
#   Where <section> is really just a number, which are defined by the
#   @secmap array on top of 'genrefcard.pl'. The reason for numbers
#   instead of names is, that for the reader, the tag should not differ
#   much from a regular comment. For zsh, it is a regular comment indeed.
#   The numbers have got the following meanings:
#         0 -> "default"
#         1 -> "system"
#         2 -> "user"
#         3 -> "debian"
#         4 -> "search"
#         5 -> "shortcuts"
#         6 -> "services"
#
#   So, the following will add an entry to the 'functions' table in the
#   'system' section, with a (hopefully) descriptive comment:
#       #f1# Edit an alias via zle
#       edalias() {
#
#   It will then show up in the @@INSERT-aliases-system@@ replacement tag
#   that can be found in 'grml-zsh-refcard.tex.in'.
#   If the section number is omitted, the 'default' section is assumed.
#   Furthermore, in 'grml-zsh-refcard.tex.in' @@INSERT-aliases@@ is
#   exactly the same as @@INSERT-aliases-default@@. If you want a list of
#   *all* aliases, for example, use @@INSERT-aliases-all@@.
#}}}

# zsh profiling {{{
# just execute 'ZSH_PROFILE_RC=1 zsh' and run 'zprof' to get the details
if [[ -n $ZSH_PROFILE_RC ]] ; then
    zmodload zsh/zprof
fi
# }}}

# utility functions {{{
# this function checks if a command exists and returns either true
# or false. This avoids using 'which' and 'whence', which will
# avoid problems with aliases for which on certain weird systems. :-)
check_com() {
    local -i comonly

    if [[ ${1} == '-c' ]] ; then
        (( comonly = 1 ))
        shift
    else
        (( comonly = 0 ))
    fi

    if (( ${#argv} != 1 )) ; then
        printf 'usage: check_com [-c] <command>\n' >&2
        return 1
    fi

    if (( comonly > 0 )) ; then
        [[ -n ${commands[$1]}  ]] && return 0
        return 1
    fi

    if   [[ -n ${commands[$1]}    ]] \
      || [[ -n ${functions[$1]}   ]] \
      || [[ -n ${aliases[$1]}     ]] \
      || [[ -n ${reswords[(r)$1]} ]] ; then

        return 0
    fi

    return 1
}

# creates an alias and precedes the command with
# sudo if $EUID is not zero.
salias() {
    local only=0 ; local multi=0
    while [[ ${1} == -* ]] ; do
        case ${1} in
            (-o) only=1 ;;
            (-a) multi=1 ;;
            (--) shift ; break ;;
            (-h)
                printf 'usage: salias [-h|-o|-a] <alias-expression>\n'
                printf '  -h      shows this help text.\n'
                printf '  -a      replace '\'' ; '\'' sequences with '\'' ; sudo '\''.\n'
                printf '          be careful using this option.\n'
                printf '  -o      only sets an alias if a preceding sudo would be needed.\n'
                return 0
                ;;
            (*) printf "unkown option: '%s'\n" "${1}" ; return 1 ;;
        esac
        shift
    done

    if (( ${#argv} > 1 )) ; then
        printf 'Too many arguments %s\n' "${#argv}"
        return 1
    fi

    key="${1%%\=*}" ;  val="${1#*\=}"
    if (( EUID == 0 )) && (( only == 0 )); then
        alias -- "${key}=${val}"
    elif (( EUID > 0 )) ; then
        (( multi > 0 )) && val="${val// ; / ; sudo }"
        alias -- "${key}=sudo ${val}"
    fi

    return 0
}

# Check if we can read given files and source those we can.
xsource() {
    if (( ${#argv} < 1 )) ; then
        printf 'usage: xsource FILE(s)...\n' >&2
        return 1
    fi

    while (( ${#argv} > 0 )) ; do
        [[ -r ${1} ]] && source ${1}
        shift
    done
    return 0
}

# Check if we can read a given file and 'cat(1)' it.
xcat() {
    if (( ${#argv} != 1 )) ; then
        printf 'usage: xcat FILE\n' >&2
        return 1
    fi

    [[ -r ${1} ]] && cat ${1}
    return 0
}

# Remove these functions again, they are of use only in these
# setup files. This should be called at the end of .zshrc.
xunfunction() {
    local -a funcs
    funcs=(check_com salias xcat xsource xunfunction zrcautoload)

    for func in $funcs ; do
        [[ -n ${functions[$func]} ]] \
            && unfunction $func
    done
    return 0
}

# autoload wrapper - use this one instead of autoload directly
function zrcautoload() {
    setopt local_options extended_glob
    local fdir ffile
    local -i ffound

    ffile=${1}
    (( found = 0 ))
    for fdir in ${fpath} ; do
        [[ -e ${fdir}/${ffile} ]] && (( ffound = 1 ))
    done

    (( ffound == 0 )) && return 1
    if [[ $ZSH_VERSION == 3.1.<6-> || $ZSH_VERSION == <4->* ]] ; then
        autoload -U ${ffile} || return 1
    else
        autoload ${ffile} || return 1
    fi
    return 0
}

#}}}

# locale setup {{{
if [[ -z "$LANG" ]] ; then
    xsource "/etc/default/locale"
fi

export LANG=${LANG:-en_US.iso885915}
for var in LC_ALL LC_MESSAGES ; do
    [[ -n ${(P)var} ]] && export $var
done

xsource "/etc/sysconfig/keyboard"

TZ=$(xcat /etc/timezone)
# }}}

# check for potentially old files in 'completion.d' {{{
setopt extendedglob
xof=(/etc/zsh/completion.d/*~/etc/zsh/completion.d/_*(N))
if (( ${#xof} > 0 )) ; then
    printf '\n -!- INFORMATION\n\n'
    printf ' -!- %s file(s) not starting with an underscore (_) found in\n' ${#xof}
    printf ' -!- /etc/zsh/completion.d/.\n\n'
    printf ' -!- While this has been the case in old versions of grml-etc-core,\n'
    printf ' -!- recent versions of the grml-zsh-setup have all these files rewritten\n'
    printf ' -!- and renamed. Furthermore, the grml-zsh-setup will *only* add files\n'
    printf ' -!- named _* to that directory.\n\n'
    printf ' -!- If you added functions to completion.d yourself, please consider\n'
    printf ' -!- moving them to /etc/zsh/functions.d/. Files in that directory, not\n'
    printf ' -!- starting with an underscore are marked for automatic loading\n'
    printf ' -!- by default (so that is quite convenient).\n\n'
    printf ' -!- If there are files *not* starting with an underscore from an older\n'
    printf ' -!- grml-etc-core in completion.d, you may safely remove them.\n\n'
    printf ' -!- Delete the files for example via running:\n\n'
    printf "      rm ${xof}\n\n"
    printf ' -!- Note, that this message will *not* go away, unless you yourself\n'
    printf ' -!- resolve the situation manually.\n\n'
    BROKEN_COMPLETION_DIR=1
fi
unset xof
# }}}

# {{{ check for version/system
# check for versions (compatibility reasons)
is4(){
    [[ $ZSH_VERSION == <4->* ]] && return 0
    return 1
}

is41(){
    [[ $ZSH_VERSION == 4.<1->* || $ZSH_VERSION == <5->* ]] && return 0
    return 1
}

is42(){
    [[ $ZSH_VERSION == 4.<2->* || $ZSH_VERSION == <5->* ]] && return 0
    return 1
}

is43(){
    [[ $ZSH_VERSION == 4.<3->* || $ZSH_VERSION == <5->* ]] && return 0
    return 1
}

# Use is-at-least, if you need to check more precisely.
# Note that this test will *always* fail, if the is-at-least
# function could not be marked for autoloading.
zrcautoload is-at-least || is-at-least() { return 1 }

#f1# Checks whether or not you're running grml
isgrml(){
    [[ -f /etc/grml_version ]] && return 0
    return 1
}

#f1# Checks whether or not you're running a grml cd
isgrmlcd(){
    [[ -f /etc/grml_cd ]] && return 0
    return 1
}

if isgrml ; then
#f1# Checks whether or not you're running grml-small
    isgrmlsmall() {
        [[ ${${${(f)"$(</etc/grml_version)"}%% *}##*-} == 'small' ]] && return 0 ; return 1
    }
else
    isgrmlsmall() { return 1 }
fi

#f1# are we running within an utf environment?
isutfenv() {
    case "$LANG $CHARSET $LANGUAGE" in
        *utf*) return 0 ;;
        *UTF*) return 0 ;;
        *)     return 1 ;;
    esac
}

# check for user, if not running as root set $SUDO to sudo
(( EUID != 0 )) && SUDO='sudo' || SUDO=''

# change directory to home on first invocation of zsh
# important for rungetty -> autologin
# Thanks go to Bart Schaefer!
isgrml && checkhome() {
    if [[ -z "$ALREADY_DID_CD_HOME" ]] ; then
        export ALREADY_DID_CD_HOME=$HOME
        cd
    fi
}

# check for zsh v3.1.7+

if ! [[ ${ZSH_VERSION} == 3.1.<7->*      \
     || ${ZSH_VERSION} == 3.<2->.<->*    \
     || ${ZSH_VERSION} == <4->.<->*   ]] ; then

    printf '-!-\n'
    printf '-!- In this configuration we try to make use of features, that only\n'
    printf '-!- require version 3.1.7 of the shell; That way this setup can be\n'
    printf '-!- used with a wide range of zsh versions, while using fairly\n'
    printf '-!- advanced features in all supported versions.\n'
    printf '-!-\n'
    printf '-!- However, you are running zsh version %s.\n' "$ZSH_VERSION"
    printf '-!-\n'
    printf '-!- While this *may* work, it might as well fail.\n'
    printf '-!- Please consider updating to at least version 3.1.7 of zsh.\n'
    printf '-!-\n'
    printf '-!- DO NOT EXPECT THIS TO WORK FLAWLESSLY!\n'
    printf '-!- If it does today, you'\''ve been lucky.\n'
    printf '-!-\n'
    printf '-!- Ye been warned!\n'
    printf '-!-\n'

    function zstyle() { : }
fi

# }}}

# {{{ set some variables
if check_com -c vim ; then
#v#
    export EDITOR=${EDITOR:-vim}
else
    export EDITOR=${EDITOR:-vi}
fi

#v#
export PAGER=${PAGER:-less}

#v#
export MAIL=${MAIL:-/var/mail/$USER}

# if we don't set $SHELL then aterm, rxvt,.. will use /bin/sh or /bin/bash :-/
export SHELL='/bin/zsh'

# color setup for ls:
check_com -c dircolors && eval $(dircolors -b)

# set width of man pages to 80 for more convenient reading
# export MANWIDTH=${MANWIDTH:-80}

# Search path for the cd command
#  cdpath=(.. ~)

# completion functions go to /etc/zsh/completion.d
# function files may be put into /etc/zsh/functions.d, from where they
# will be automatically autoloaded.
if [[ -n "$BROKEN_COMPLETION_DIR" ]] ; then
    print 'Warning: not setting completion directories because broken files have been found.' >&2
else
    [[ -d /etc/zsh/completion.d ]] && fpath=( $fpath /etc/zsh/completion.d )
    if [[ -d /etc/zsh/functions.d ]] ; then
        fpath+=( /etc/zsh/functions.d )
        for func in /etc/zsh/functions.d/[^_]*[^~] ; do
            zrcautoload -U ${func:t}
        done
    fi
fi

# automatically remove duplicates from these arrays
typeset -U path cdpath fpath manpath
# }}}

# {{{ keybindings
if [[ "$TERM" != emacs ]] ; then
    [[ -z "$terminfo[kdch1]" ]] || bindkey -M emacs "$terminfo[kdch1]" delete-char
    [[ -z "$terminfo[khome]" ]] || bindkey -M emacs "$terminfo[khome]" beginning-of-line
    [[ -z "$terminfo[kend]"  ]] || bindkey -M emacs "$terminfo[kend]"  end-of-line
    [[ -z "$terminfo[kdch1]" ]] || bindkey -M vicmd "$terminfo[kdch1]" vi-delete-char
    [[ -z "$terminfo[khome]" ]] || bindkey -M vicmd "$terminfo[khome]" vi-beginning-of-line
    [[ -z "$terminfo[kend]"  ]] || bindkey -M vicmd "$terminfo[kend]"  vi-end-of-line
    [[ -z "$terminfo[cuu1]"  ]] || bindkey -M viins "$terminfo[cuu1]"  vi-up-line-or-history
    [[ -z "$terminfo[cuf1]"  ]] || bindkey -M viins "$terminfo[cuf1]"  vi-forward-char
    [[ -z "$terminfo[kcuu1]" ]] || bindkey -M viins "$terminfo[kcuu1]" vi-up-line-or-history
    [[ -z "$terminfo[kcud1]" ]] || bindkey -M viins "$terminfo[kcud1]" vi-down-line-or-history
    [[ -z "$terminfo[kcuf1]" ]] || bindkey -M viins "$terminfo[kcuf1]" vi-forward-char
    [[ -z "$terminfo[kcub1]" ]] || bindkey -M viins "$terminfo[kcub1]" vi-backward-char
    # ncurses stuff:
    [[ "$terminfo[kcuu1]" == $'\eO'* ]] && bindkey -M viins "${terminfo[kcuu1]/O/[}" vi-up-line-or-history
    [[ "$terminfo[kcud1]" == $'\eO'* ]] && bindkey -M viins "${terminfo[kcud1]/O/[}" vi-down-line-or-history
    [[ "$terminfo[kcuf1]" == $'\eO'* ]] && bindkey -M viins "${terminfo[kcuf1]/O/[}" vi-forward-char
    [[ "$terminfo[kcub1]" == $'\eO'* ]] && bindkey -M viins "${terminfo[kcub1]/O/[}" vi-backward-char
    [[ "$terminfo[khome]" == $'\eO'* ]] && bindkey -M viins "${terminfo[khome]/O/[}" beginning-of-line
    [[ "$terminfo[kend]"  == $'\eO'* ]] && bindkey -M viins "${terminfo[kend]/O/[}"  end-of-line
    [[ "$terminfo[khome]" == $'\eO'* ]] && bindkey -M emacs "${terminfo[khome]/O/[}" beginning-of-line
    [[ "$terminfo[kend]"  == $'\eO'* ]] && bindkey -M emacs "${terminfo[kend]/O/[}"  end-of-line
fi

## keybindings (run 'bindkeys' for details, more details via man zshzle)
# use emacs style per default:
bindkey -e
# use vi style:
# bindkey -v

#if [[ "$TERM" == screen ]] ; then
bindkey '\e[1~' beginning-of-line       # home
bindkey '\e[4~' end-of-line             # end
bindkey '\e[A'  up-line-or-search       # cursor up
bindkey '\e[B'  down-line-or-search     # <ESC>-
bindkey '^x'    history-beginning-search-backward # alternative ways of searching the shell history
# bindkey -s '^L' "|less\n"             # ctrl-L pipes to less
# bindkey -s '^B' " &\n"                # ctrl-B runs it in the background
# if terminal type is set to 'rxvt':
bindkey '\e[7~' beginning-of-line       # home
bindkey '\e[8~' end-of-line             # end
#fi

# insert unicode character
# usage example: 'ctrl-x i' 00A7 'ctrl-x i' will give you an §
# See for example http://unicode.org/charts/ for unicode characters code
zrcautoload insert-unicode-char
zle -N insert-unicode-char
#k# Insert Unicode character
bindkey '^Xi' insert-unicode-char

# just type 'cd ...' to get 'cd ../..'
#  rationalise-dot() {
#  if [[ $LBUFFER == *.. ]] ; then
#    LBUFFER+=/..
#  else
#    LBUFFER+=.
#  fi
#  }
#  zle -N rationalise-dot
#  bindkey . rationalise-dot

#  bindkey '\eq' push-line-or-edit
# }}}

# a generic accept-line wrapper {{{

# This widget can prevent unwanted autocorrections from command-name
# to _command-name, rehash automatically on enter and call any number
# of builtin and user-defined widgets in different contexts.
#
# For a broader description, see:
# <http://bewatermyfriend.org/posts/2007/12-26.11-50-38-tooltime.html>
#
# The code is imported from the file 'zsh/functions/accept-line' from
# <http://ft.bewatermyfriend.org/comp/zsh/zsh-dotfiles.tar.bz2>, which
# distributed under the same terms as zsh itself.

# A newly added command will may not be found or will cause false
# correction attempts, if you got auto-correction set. By setting the
# following style, we force accept-line() to rehash, if it cannot
# find the first word on the command line in the $command[] hash.
zstyle ':acceptline:*' rehash true

function Accept-Line() {
    setopt localoptions noksharrays
    local -a subs
    local -xi aldone
    local sub

    zstyle -a ":acceptline:${alcontext}" actions subs

    (( ${#subs} < 1 )) && return 0

    (( aldone = 0 ))
    for sub in ${subs} ; do
        [[ ${sub} == 'accept-line' ]] && sub='.accept-line'
        zle ${sub}

        (( aldone > 0 )) && break
    done
}

function Accept-Line-getdefault() {
    local default_action

    zstyle -s ":acceptline:${alcontext}" default_action default_action
    case ${default_action} in
        ((accept-line|))
            printf ".accept-line"
            ;;
        (*)
            printf ${default_action}
            ;;
    esac
}

function accept-line() {
    setopt localoptions noksharrays
    local -a cmdline
    local -x alcontext
    local buf com fname format msg default_action

    alcontext='default'
    buf="${BUFFER}"
    cmdline=(${(z)BUFFER})
    com="${cmdline[1]}"
    fname="_${com}"

    zstyle -t ":acceptline:${alcontext}" rehash \
        && [[ -z ${commands[$com]} ]]           \
        && rehash

    if    [[ -n ${reswords[(r)$com]} ]] \
       || [[ -n ${aliases[$com]}     ]] \
       || [[ -n ${functions[$com]}   ]] \
       || [[ -n ${builtins[$com]}    ]] \
       || [[ -n ${commands[$com]}    ]] ; then

        # there is something sensible to execute, just do it.
        alcontext='normal'
        zle Accept-Line

        default_action=$(Accept-Line-getdefault)
        zstyle -T ":acceptline:${alcontext}" call_default \
            && zle ${default_action}
        return
    fi

    if    [[ -o correct              ]] \
       || [[ -o correctall           ]] \
       && [[ -n ${functions[$fname]} ]] ; then

        # nothing there to execute but there is a function called
        # _command_name; a completion widget. Makes no sense to
        # call it on the commandline, but the correct{,all} options
        # will ask for it nevertheless, so warn the user.
        if [[ ${LASTWIDGET} == 'accept-line' ]] ; then
            # Okay, we warned the user before, he called us again,
            # so have it his way.
            alcontext='force'
            zle Accept-Line

            default_action=$(Accept-Line-getdefault)
            zstyle -T ":acceptline:${alcontext}" call_default \
                && zle ${default_action}
            return
        fi

        # prepare warning message for the user, configurable via zstyle.
        zstyle -s ":acceptline:${alcontext}" compwarnfmt msg

        if [[ -z ${msg} ]] ; then
            msg="%c will not execute and completion %f exists."
        fi

        zformat -f msg "${msg}" "c:${com}" "f:${fname}"

        zle -M -- "${msg}"
        return
    elif [[ -n ${buf//[$' \t\n']##/} ]] ; then
        # If we are here, the commandline contains something that is not
        # executable, which is neither subject to _command_name correction
        # and is not empty. might be a variable assignment
        alcontext='misc'
        zle Accept-Line

        default_action=$(Accept-Line-getdefault)
        zstyle -T ":acceptline:${alcontext}" call_default \
            && zle ${default_action}
        return
    fi

    # If we got this far, the commandline only contains whitespace, or is empty.
    alcontext='empty'
    zle Accept-Line

    default_action=$(Accept-Line-getdefault)
    zstyle -T ":acceptline:${alcontext}" call_default \
        && zle ${default_action}
}

zle -N accept-line
zle -N Accept-Line

# }}}

# power completion - abbreviation expansion {{{
# power completion / abbreviation expansion / buffer expansion
# see http://zshwiki.org/home/examples/zleiab for details
# less risky than the global aliases but powerful as well
# just type the abbreviation key and afterwards ',.' to expand it
declare -A abk
setopt extendedglob
setopt interactivecomments
abk=(
# key  # value                (#d additional doc string)
#A# start
    '...' '../..'
    '....' '../../..'
    'BG' '& exit'
    'C' '| wc -l'
    'G' '|& grep --color=auto'
    'H' '| head'
    'Hl' ' --help |& less -r'      #d (Display help in pager)
    'L' '| less'
    'LL' '|& less -r'
    'M' '| most'
    'N' '&>/dev/null'              #d (No Output)
    'R' '| tr A-z N-za-m'          #d (ROT13)
    'SL' '| sort | less'
    'S' '| sort -u'
    'T' '| tail'
    'V' '|& vim -'
#A# end
    'hide' "echo -en '\033]50;nil2\007'"
    'tiny' 'echo -en "\033]50;-misc-fixed-medium-r-normal-*-*-80-*-*-c-*-iso8859-15\007"'
    'small' 'echo -en "\033]50;6x10\007"'
    'medium' 'echo -en "\033]50;-misc-fixed-medium-r-normal--13-120-75-75-c-80-iso8859-15\007"'
    'default' 'echo -e "\033]50;-misc-fixed-medium-r-normal-*-*-140-*-*-c-*-iso8859-15\007"'
    'large' 'echo -en "\033]50;-misc-fixed-medium-r-normal-*-*-150-*-*-c-*-iso8859-15\007"'
    'huge' 'echo -en "\033]50;-misc-fixed-medium-r-normal-*-*-210-*-*-c-*-iso8859-15\007"'
    'smartfont' 'echo -en "\033]50;-artwiz-smoothansi-*-*-*-*-*-*-*-*-*-*-*-*\007"'
    'semifont' 'echo -en "\033]50;-misc-fixed-medium-r-semicondensed-*-*-120-*-*-*-*-iso8859-15\007"'
    'da' 'du -sch'
    'j' 'jobs -l'
    'u' 'translate -i'
    'co' "./configure && make && sudo make install"
    'CH' "./configure --help"
    'conkeror' 'firefox -chrome chrome://conkeror/content'
    'dir' 'ls -lSrah'
    'lad' $'ls -d .*(/)\n# only show dot-directories'
    'lsa' $'ls -a .*(.)\n# only show dot-files'
    'lss' $'ls -l *(s,S,t)\n# only files with setgid/setuid/sticky flag'
    'lsl' $'ls -l *(@[1,10])\n# only symlinks'
    'lsx' $'ls -l *(*[1,10])\n# only executables'
    'lsw' $'ls -ld *(R,W,X.^ND/)\n# world-{readable,writable,executable} files'
    'lsbig' $'ls -flh *(.OL[1,10])\n# display the biggest files'
    'lsd' $'ls -d *(/)\n# only show directories'
    'lse' $'ls -d *(/^F)\n# only show empty directories'
    'lsnew' $'ls -rl *(D.om[1,10])\n# display the newest files'
    'lsold' $'ls -rtlh *(D.om[-11,-1])\n # display the oldest files'
    'lssmall' $'ls -Srl *(.oL[1,10])\n# display the smallest files'
    'rw-' 'chmod 600'
    '600' 'chmod u+rw-x,g-rwx,o-rwx'
    'rwx' 'chmod u+rwx'
    '700' 'chmod u+rwx,g-rwx,o-rwx'
    'r--' 'chmod u+r-wx,g-rwx,o-rwx'
    '644' $'chmod u+rw-x,g+r-wx,o+r-wx\n # 4=r,2=w,1=x'
    '755' 'chmod u+rwx,g+r-w+x,o+r-w+x'
    'md' 'mkdir -p '
    'cmplayer' 'mplayer -vo -fs -zoom fbdev'
    'fbmplayer' 'mplayer -vo -fs -zoom fbdev'
    'fblinks' 'links2 -driver fb'
    'insecssh' 'ssh -o "StrictHostKeyChecking=no" -o "UserKnownHostsFile=/dev/null"'
    'insecscp' 'scp -o "StrictHostKeyChecking=no" -o "UserKnownHostsFile=/dev/null"'
    'fori' 'for i ({..}) { }'
    'cx' 'chmod +x'
    'e'  'print -l'
    'se' 'setopt interactivecomments'
    'va' 'valac --vapidir=../vapi/ --pkg=gtk+-2.0 gtktest.vala'
    'fb2' '=mplayer -vo fbdev -fs -zoom 1>/dev/null -xy 2'
    'fb3' '=mplayer -vo fbdev -fs  -zoom 1>/dev/null -xy 3'
    'ci' 'centericq'
    'D'  'export DISPLAY=:0.0'
    'mp' 'mplayer -vo xv -fs -zoom'
)

globalias() {
    local MATCH
    matched_chars='[.-|_a-zA-Z0-9]#'
    LBUFFER=${LBUFFER%%(#m)[.-|_a-zA-Z0-9]#}
    LBUFFER+=${abk[$MATCH]:-$MATCH}
}

zle -N globalias
bindkey ",." globalias
# }}}

# {{{ autoloading
zrcautoload zmv    # who needs mmv or rename?
zrcautoload history-search-end

# we don't want to quote/espace URLs on our own...
# if autoload -U url-quote-magic ; then
#    zle -N self-insert url-quote-magic
#    zstyle ':url-quote-magic:*' url-metas '*?[]^()~#{}='
# else
#    print 'Notice: no url-quote-magic available :('
# fi
alias url-quote='autoload -U url-quote-magic ; zle -N self-insert url-quote-magic'

#m# k ESC-h Call \kbd{run-help} for the 1st word on the command line
alias run-help >&/dev/null && unalias run-help
zrcautoload run-help # use via 'esc-h'

# completion system
if zrcautoload compinit && compinit 2>/dev/null ; then
    compinit 2>/dev/null || print 'Notice: no compinit available :('
else
    print 'Notice: no compinit available :('
    function zstyle { }
    function compdef { }
fi

is4 && zrcautoload zed # use ZLE editor to edit a file or function

is4 && \
for mod in complist deltochar mathfunc ; do
    zmodload -i zsh/${mod} 2>/dev/null || print "Notice: no ${mod} available :("
done

# autoload zsh modules when they are referenced
if is4 ; then
    tmpargs=(
        a   stat
        a   zpty
        ap  zprof
        ap  mapfile
    )

    while (( ${#tmpargs} > 0 )) ; do
        zmodload -${tmpargs[1]} zsh/${tmpargs[2]} ${tmpargs[2]}
        shift 2 tmpargs
    done
    unset tmpargs
fi

if is4 && zrcautoload insert-files && zle -N insert-files ; then
    #k# Insert files
    bindkey "^Xf" insert-files # C-x-f
fi

bindkey ' '   magic-space    # also do history expansion on space
#k# Trigger menu-complete
bindkey '\ei' menu-complete  # menu completion via esc-i

# press esc-e for editing command line in $EDITOR or $VISUAL
if is4 && zrcautoload edit-command-line && zle -N edit-command-line ; then
    #k# Edit the current line in \kbd{\$EDITOR}
    bindkey '\ee' edit-command-line
fi

if is4 && [[ -n ${(k)modules[zsh/complist]} ]] ; then
    #k# menu selection: pick item but stay in the menu
    bindkey -M menuselect '\e^M' accept-and-menu-complete

    # use the vi navigation keys (hjkl) besides cursor keys in menu completion
    #bindkey -M menuselect 'h' vi-backward-char        # left
    #bindkey -M menuselect 'k' vi-up-line-or-history   # up
    #bindkey -M menuselect 'l' vi-forward-char         # right
    #bindkey -M menuselect 'j' vi-down-line-or-history # bottom

    # accept a completion and try to complete again by using menu
    # completion; very useful with completing directories
    # by using 'undo' one's got a simple file browser
    bindkey -M menuselect '^o' accept-and-infer-next-history
fi

# press "ctrl-e d" to insert the actual date in the form yyyy-mm-dd
_bkdate() { BUFFER="$BUFFER$(date '+%F')"; CURSOR=$#BUFFER; }
zle -N _bkdate

#k# Insert a timestamp on the command line (yyyy-mm-dd)
bindkey '^Ed' _bkdate

# press esc-m for inserting last typed word again (thanks to caphuso!)
insert-last-typed-word() { zle insert-last-word -- 0 -1 };
zle -N insert-last-typed-word;

#k# Insert last typed word
bindkey "\em" insert-last-typed-word

# set command prediction from history, see 'man 1 zshcontrib'
#  is4 && zrcautoload predict-on && \
#  zle -N predict-on         && \
#  zle -N predict-off        && \
#  bindkey "^X^Z" predict-on && \
#  bindkey "^Z" predict-off

#k# Shortcut for \kbd{fg<enter>}
bindkey -s '^z' "fg\n"

# press ctrl-q to quote line:
#  mquote () {
#        zle beginning-of-line
#        zle forward-word
#        # RBUFFER="'$RBUFFER'"
#        RBUFFER=${(q)RBUFFER}
#        zle end-of-line
#  }
#  zle -N mquote && bindkey '^q' mquote

# run command line as user root via sudo:
sudo-command-line() {
    [[ -z $BUFFER ]] && zle up-history
    [[ $BUFFER != sudo\ * ]] && BUFFER="sudo $BUFFER"
}
zle -N sudo-command-line

#k# Put the current command line into a \kbd{sudo} call
bindkey "^Os" sudo-command-line

### jump behind the first word on the cmdline.
### useful to add options.
function jump_after_first_word() {
    local words
    words=(${(z)BUFFER})

    if (( ${#words} <= 1 )) ; then
        CURSOR=${#BUFFER}
    else
        CURSOR=${#${words[1]}}
    fi
}
zle -N jump_after_first_word

bindkey '^x1' jump_after_first_word

# }}}

# {{{ set some important options
# Please update these tags, if you change the umask settings below.
#o# r_umask     002
#o# r_umaskstr  rwxrwxr-x
#o# umask       022
#o# umaskstr    rwxr-xr-x
(( EUID != 0 )) && umask 002 || umask 022

# history:
setopt append_history       # append history list to the history file (important for multiple parallel zsh sessions!)
is4 && setopt SHARE_HISTORY # import new commands from the history file also in other zsh-session
setopt extended_history     # save each command's beginning timestamp and the duration to the history file
is4 && setopt histignorealldups # If  a  new  command  line being added to the history
                            # list duplicates an older one, the older command is removed from the list
setopt histignorespace      # remove command lines from the history list when
                            # the first character on the line is a space
#  setopt histallowclobber    # add `|' to output redirections in the history
#  setopt NO_clobber          # warning if file exists ('cat /dev/null > ~/.zshrc')
setopt auto_cd              # if a command is issued that can't be executed as a normal command,
                            # and the command is the name of a directory, perform the cd command to that directory
setopt extended_glob        # in order to use #, ~ and ^ for filename generation
                            # grep word *~(*.gz|*.bz|*.bz2|*.zip|*.Z) ->
                            # -> searches for word not in compressed files
                            # don't forget to quote '^', '~' and '#'!
setopt longlistjobs         # display PID when suspending processes as well
setopt notify               # report the status of backgrounds jobs immediately
setopt hash_list_all        # Whenever a command completion is attempted, make sure \
                            # the entire command path is hashed first.
setopt completeinword       # not just at the end
# setopt nocheckjobs          # don't warn me about bg processes when exiting
setopt nohup                # and don't kill them, either
# setopt printexitvalue       # alert me if something failed
# setopt dvorak               # with spelling correction, assume dvorak kb
setopt auto_pushd           # make cd push the old directory onto the directory stack.
setopt nonomatch            # try to avoid the 'zsh: no matches found...'
setopt nobeep               # avoid "beep"ing
setopt pushd_ignore_dups    # don't push the same dir twice.

MAILCHECK=30       # mailchecks
REPORTTIME=5       # report about cpu-/system-/user-time of command if running longer than 5 seconds
watch=(notme root) # watch for everyone but me and root

# define word separators (for stuff like backward-word, forward-word, backward-kill-word,..)
#  WORDCHARS='*?_-.[]~=/&;!#$%^(){}<>' # the default
#  WORDCHARS=.
#  WORDCHARS='*?_[]~=&;!#$%^(){}'
#  WORDCHARS='${WORDCHARS:s@/@}'

# only slash should be considered as a word separator:
slash-backward-kill-word() {
    local WORDCHARS="${WORDCHARS:s@/@}"
    # zle backward-word
    zle backward-kill-word
}
zle -N slash-backward-kill-word

#k# Kill everything in a word up to its last \kbd{/}
bindkey '\ev' slash-backward-kill-word

# }}}

# {{{ history

ZSHDIR=$HOME/.zsh

#v#
HISTFILE=$HOME/.zsh_history
isgrmlcd && HISTSIZE=500  || HISTSIZE=5000
isgrmlcd && SAVEHIST=1000 || SAVEHIST=10000 # useful for setopt append_history

# }}}

# dirstack handling {{{

DIRSTACKSIZE=20
if [[ -f ~/.zdirs ]] && [[ ${#dirstack[*]} -eq 0 ]] ; then
    dirstack=( ${(f)"$(< ~/.zdirs)"} )
    # "cd -" won't work after login by just setting $OLDPWD, so
    [[ -d $dirstack[0] ]] && cd $dirstack[0] && cd $OLDPWD
fi

chpwd() {
    builtin print -l ${(u)dirstack} >! ~/.zdirs
}

# }}}

# {{{ display battery status on right side of prompt via running 'BATTERY=1 zsh'
if [[ -n "$BATTERY" ]] ; then
    if check_com -c acpi ; then
        PERCENT="${(C)${(s| |)$(acpi 2>/dev/null)}[4]}"
        [[ -z "$PERCENT" ]] && PERCENT='acpi not present'

        if [[ "${PERCENT%%%}" -lt 20 ]] ; then
            PERCENT="warning: ${PERCENT}%"
        fi
    fi
fi
# }}}

# display version control information on right side of prompt if $VCS is set {{{
# based on Mike Hommey's http://web.glandium.org/blog/?p=170
__vcs_dir() {
    local vcs base_dir sub_dir ref

    sub_dir() {
      local sub_dir
      sub_dir=$(readlink -f "${PWD}")
      sub_dir=${sub_dir#$1}
      echo ${sub_dir#/}
    }

    git_dir() {
      base_dir=$(git-rev-parse --show-cdup 2>/dev/null) || return 1
      base_dir=$(readlink -f "$base_dir/..")
      sub_dir=$(git-rev-parse --show-prefix)
      sub_dir=${sub_dir%/}
      ref=$(git-symbolic-ref -q HEAD || git-name-rev --name-only HEAD 2>/dev/null)
      ref=${ref#refs/heads/}
      vcs="git"
    }

    svn_dir() {
      [[ -d ".svn" ]] || return 1
      base_dir="."
      while [[ -d "$base_dir/../.svn" ]]; do base_dir="$base_dir/.."; done
      base_dir=$(readlink -f "$base_dir")
      sub_dir=$(sub_dir "${base_dir}")
      ref=$(svn info "$base_dir" | awk '/^URL/ { sub(".*/","",$0); r=$0 } /^Revision/ { sub("[^0-9]*","",$0); print r":"$0 }')
      vcs="svn"
    }

    svk_dir() {
        [[ -f ~/.svk/config ]] || return 1
        base_dir=$(awk '/: *$/ { sub(/^ */,"",$0); sub(/: *$/,"",$0); if (match("'${PWD}'", $0"(/|$)")) { print $0; d=1; } } /depotpath/ && d == 1 { sub(".*/","",$0); r=$0 } /revision/ && d == 1 { print r ":" $2; exit 1 }' ~/.svk/config) && return 1
        ref=${base_dir##*
  }
        base_dir=${base_dir%%
  *}
        sub_dir=$(sub_dir "${base_dir}")
        vcs="svk"
    }

    hg_dir() {
        base_dir="."
        while [[ ! -d "$base_dir/.hg" ]]; do
            base_dir="$base_dir/.."
            [[ $(readlink -f "${base_dir}") = "/" ]] && return 1
        done
        base_dir=$(readlink -f "$base_dir")
        sub_dir=$(sub_dir "${base_dir}")
        ref=$(< "${base_dir}/.hg/branch")
        vcs="hg"
    }

    hg_dir  ||
    git_dir ||
    svn_dir ||
    svk_dir # ||
  #  base_dir="$PWD"
  #  echo "${vcs:+($vcs)}${base_dir/$HOME/~}${vcs:+[$ref]${sub_dir}}"
    echo "${vcs:+($vcs)}${base_dir}${vcs:+[$ref]${sub_dir}}"
}
# }}}

# {{{ set prompt
if zrcautoload promptinit && promptinit 2>/dev/null ; then
    promptinit # people should be able to use their favourite prompt
else
    print 'Notice: no promptinit available :('
fi


# precmd() => a function which is executed just before each prompt
# use 'NOPRECMD=1' to disable the precmd + preexec commands

# precmd () { setopt promptsubst; [[ -o interactive ]] && jobs -l;

# make sure to use right prompt only when not running a command
is41 && setopt transient_rprompt

is4 && [[ -z $NOPRECMD ]] && precmd () {
    [[ -n $NOPRECMD ]] && return 0
    # allow manual overwriting of RPROMPT
    if [[ -n $RPROMPT ]] ; then
        [[ $TERM == screen* ]] && echo -n $'\ekzsh\e\\'
        # return 0
    fi
    # just use DONTSETRPROMPT=1 to be able to overwrite RPROMPT
    if [[ -z $DONTSETRPROMPT ]] ; then
        if [[ -n $BATTERY ]] ; then
            RPROMPT="%(?..:()% ${PERCENT}${SCREENTITLE}"
            # RPROMPT="${PERCENT}${SCREENTITLE}"
        elif [[ -n $VCS ]] ; then
            RPROMPT="%(?..:()% $(__vcs_dir)${SCREENTITLE}"
        else
            RPROMPT="%(?..:()% ${SCREENTITLE}"
            # RPROMPT="${SCREENTITLE}"
        fi
    fi
    # adjust title of xterm
    # see http://www.faqs.org/docs/Linux-mini/Xterm-Title.html
    case $TERM in
        (xterm*|rxvt)
            print -Pn "\e]0;%n@%m: %~\a"
            ;;
    esac
}

# chpwd () => a function which is executed whenever the directory is changed

# preexec() => a function running before every command
is4 && [[ -z $NOPRECMD ]] && \
preexec () {
    [[ -n $NOPRECMD ]] && return 0
# set hostname if not running on host with name 'grml'
    if [[ -n "$HOSTNAME" ]] && [[ "$HOSTNAME" != $(hostname) ]] ; then
       NAME="@$HOSTNAME"
    fi
# get the name of the program currently running and hostname of local machine
# set screen window title if running in a screen
    if [[ "$TERM" == screen* ]] ; then
        # local CMD=${1[(wr)^(*=*|sudo|ssh|-*)]}       # don't use hostname
        local CMD="${1[(wr)^(*=*|sudo|ssh|-*)]}$NAME" # use hostname
        echo -ne "\ek$CMD\e\\"
    fi
# set the screen title to "zsh" when sitting at the command prompt:
    if [[ "$TERM" == screen* ]] ; then
        SCREENTITLE=$'%{\ekzsh\e\\%}'
    else
        SCREENTITLE=''
    fi
# adjust title of xterm
    case $TERM in
        (xterm*|rxvt)
            print -Pn "\e]0;%n@%m: $1\a"
            ;;
    esac
}

# set colors
if zrcautoload colors && colors 2>/dev/null ; then
    BLUE="%{${fg[blue]}%}"
    RED="%{${fg_bold[red]}%}"
    GREEN="%{${fg[green]}%}"
    CYAN="%{${fg[cyan]}%}"
    WHITE="%{${fg[white]}%}"
    NO_COLOUR="%{${reset_color}%}"
else
    BLUE=$'%{\e[1;34m%}'
    RED=$'%{\e[1;31m%}'
    GREEN=$'%{\e[1;32m%}'
    CYAN=$'%{\e[1;36m%}'
    WHITE=$'%{\e[1;37m%}'
    NO_COLOUR=$'%{\e[0m%}'
fi

EXITCODE="%(?..%?%1v )"
PS2='`%_> '       # secondary prompt, printed when the shell needs more information to complete a command.
PS3='?# '         # selection prompt used within a select loop.
PS4='+%N:%i:%_> ' # the execution trace prompt (setopt xtrace). default: '+%N:%i>'

# set variable debian_chroot if running in a chroot with /etc/debian_chroot
if [[ -z "$debian_chroot" ]] && [[ -r /etc/debian_chroot ]] ; then
    debian_chroot=$(cat /etc/debian_chroot)
fi

# don't use colors on dumb terminals (like emacs):
if [[ "$TERM" == dumb ]] ; then
    PROMPT="${EXITCODE}${debian_chroot:+($debian_chroot)}%n@%m %40<...<%B%~%b%<< %# "
else
    # only if $GRMLPROMPT is set (e.g. via 'GRMLPROMPT=1 zsh') use the extended prompt
    # set variable identifying the chroot you work in (used in the prompt below)
    if [[ -n $GRMLPROMPT ]] ; then
        PROMPT="${RED}${EXITCODE}${CYAN}[%j running job(s)] ${GREEN}{history#%!} ${RED}%(3L.+.) ${BLUE}%* %D
${BLUE}%n${NO_COLOUR}@%m %40<...<%B%~%b%<< %# "
    else
        if (( EUID != 0 )); then
            PROMPT="${RED}${EXITCODE}${WHITE}${debian_chroot:+($debian_chroot)}${BLUE}%n${NO_COLOUR}@%m %40<...<%B%~%b%<< %# " # primary prompt string
        else
            PROMPT="${BLUE}${EXITCODE}${WHITE}${debian_chroot:+($debian_chroot)}${RED}%n${NO_COLOUR}@%m %40<...<%B%~%b%<< %# " # primary prompt string
        fi
    fi
fi

# if we are inside a grml-chroot set a specific prompt theme
if [[ -n "$GRML_CHROOT" ]] ; then
    PROMPT="%{$fg[red]%}(CHROOT) %{$fg_bold[red]%}%n%{$fg_no_bold[white]%}@%m %40<...<%B%~%b%<< %\# "
fi
# }}}

# {{{ 'hash' some often used directories
#d# start
hash -d deb=/var/cache/apt/archives
hash -d doc=/usr/share/doc
hash -d linux=/lib/modules/$(command uname -r)/build/
hash -d log=/var/log
hash -d slog=/var/log/syslog
hash -d src=/usr/src
hash -d templ=/usr/share/doc/grml-templates
hash -d tt=/usr/share/doc/texttools-doc
hash -d www=/var/www
#d# end
# }}}

# {{{ some aliases
if [[ $UID -eq 0 ]] ; then
    [[ -r /etc/grml/screenrc ]] && alias screen='/usr/bin/screen -c /etc/grml/screenrc'
elif [[ -r $HOME/.screenrc ]] ; then
    alias screen="/usr/bin/screen -c $HOME/.screenrc"
else
    [[ -r /etc/grml/screenrc_grml ]] && alias screen='/usr/bin/screen -c /etc/grml/screenrc_grml'
fi

# do we have GNU ls with color-support?
if ls --help 2>/dev/null | grep -- --color= >/dev/null && [[ "$TERM" != dumb ]] ; then
    #a1# execute \kbd{@a@}:\quad ls with colors
    alias ls='ls -b -CF --color=auto'
    #a1# execute \kbd{@a@}:\quad list all files, with colors
    alias la='ls -la --color=auto'
    #a1# long colored list, without dotfiles (@a@)
    alias ll='ls -l --color=auto'
    #a1# long colored list, human readable sizes (@a@)
    alias lh='ls -hAl --color=auto'
    #a1# List files, append qualifier to filenames \\&\quad(\kbd{/} for directories, \kbd{@} for symlinks ...)
    alias l='ls -lF --color=auto'
else
    alias ls='ls -b -CF'
    alias la='ls -la'
    alias ll='ls -l'
    alias lh='ls -hAl'
    alias l='ls -lF'
fi

alias mdstat='cat /proc/mdstat'
alias ...='cd ../../'

# generate alias named "$KERNELVERSION-reboot" so you can use boot with kexec:
if [[ -x /sbin/kexec ]] && [[ -r /proc/cmdline ]] ; then
    alias "$(uname -r)-reboot"="kexec -l --initrd=/boot/initrd.img-"$(uname -r)" --command-line=\"$(cat /proc/cmdline)\" /boot/vmlinuz-"$(uname -r)""
fi

alias cp='nocorrect cp'         # no spelling correction on cp
alias mkdir='nocorrect mkdir'   # no spelling correction on mkdir
alias mv='nocorrect mv'         # no spelling correction on mv
alias rm='nocorrect rm'         # no spelling correction on rm

#a1# Execute \kbd{rmdir}
alias rd='rmdir'
#a1# Execute \kbd{rmdir}
alias md='mkdir'

# see http://www.cl.cam.ac.uk/~mgk25/unicode.html#term for details
alias term2iso="echo 'Setting terminal to iso mode' ; print -n '\e%@'"
alias term2utf="echo 'Setting terminal to utf-8 mode'; print -n '\e%G'"

# make sure it is not assigned yet
[[ $(whence -w utf2iso &>/dev/null) == 'utf2iso: alias' ]] && unalias utf2iso

utf2iso() {
    if isutfenv ; then
        for ENV in $(env | command grep -i '.utf') ; do
            eval export "$(echo $ENV | sed 's/UTF-8/iso885915/ ; s/utf8/iso885915/')"
        done
    fi
}

# make sure it is not assigned yet
[[ $(whence -w iso2utf &>/dev/null) == 'iso2utf: alias' ]] && unalias iso2utf
iso2utf() {
    if ! isutfenv ; then
        for ENV in $(env | command grep -i '\.iso') ; do
            eval export "$(echo $ENV | sed 's/iso.*/UTF-8/ ; s/ISO.*/UTF-8/')"
        done
    fi
}

# set up software synthesizer via speakup
swspeak() {
    aumix -w 90 -v 90 -p 90 -m 90
    if ! [[ -r /dev/softsynth ]] ; then
        flite -o play -t "Sorry, software synthesizer not available. Did you boot with swspeak bootoption?"
        return 1
    else
        setopt singlelinezle
        unsetopt prompt_cr
        export PS1="%m%# "
        nice -n -20 speechd-up
        sleep 2
        flite -o play -t "Finished setting up software synthesizer"
    fi
}

# I like clean prompt, so provide simple way to get that
check_com 0 || alias 0='return 0'

# for really lazy people like mika:
check_com S &>/dev/null || alias S='screen'
check_com s &>/dev/null || alias s='ssh'

# get top 10 shell commands:
alias top10='print -l ? ${(o)history%% *} | uniq -c | sort -nr | head -n 10'

# truecrypt; use e.g. via 'truec /dev/ice /mnt/ice' or 'truec -i'
if check_com -c truecrypt ; then
    if isutfenv ; then
        alias truec='truecrypt --mount-options "rw,sync,dirsync,users,uid=1000,gid=users,umask=077,utf8" '
    else
        alias truec='truecrypt --mount-options "rw,sync,dirsync,users,uid=1000,gid=users,umask=077" '
    fi
fi

#f1# Hints for the use of zsh on grml
zsh-help() {
    print "$bg[white]$fg[black]
zsh-help - hints for use of zsh on grml
=======================================$reset_color"

    print '
Main configuration of zsh happens in /etc/zsh/zshrc (global)
and /etc/skel/.zshrc which is copied to $HOME/.zshrc once.
The files are part of the package grml-etc-core, if you want to
use them on a non-grml-system just get the tar.gz from
http://deb.grml.org/ or get the files from the mercurial
repository:

  http://hg.grml.org/grml-etc-core/raw-file/tip/etc/skel/.zshrc
  http://hg.grml.org/grml-etc-core/raw-file/tip/etc/zsh/zshrc

If you want to stay in sync with zsh configuration of grml
run '\''ln -sf /etc/skel/.zshrc $HOME/.zshrc'\'' and configure
your own stuff in $HOME/.zshrc.local. System wide configuration
without touching configuration files of grml can take place
in /etc/zsh/zshrc.local.

If you want to use the configuration of user grml also when
running as user root just run '\''zshskel'\'' which will source
the file /etc/skel/.zshrc.

For information regarding zsh start at http://grml.org/zsh/

Take a look at grml'\''s zsh refcard:
% xpdf =(zcat /usr/share/doc/grml-docs/zsh/grml-zsh-refcard.pdf.gz)

Check out the main zsh refcard:
% '$BROWSER' http://www.bash2zsh.com/zsh_refcard/refcard.pdf

And of course visit the zsh-lovers:
% man zsh-lovers

You can adjust some options through environment variables when
invoking zsh without having to edit configuration files.
Basically meant for bash users who are not used to the power of
the zsh yet. :)

  "NOCOR=1    zsh" => deactivate automatic correction
  "NOMENU=1   zsh" => do not use menu completion (note: use strg-d for completion instead!)
  "NOPRECMD=1 zsh" => disable the precmd + preexec commands (set GNU screen title)
  "BATTERY=1  zsh" => activate battery status (via acpi) on right side of prompt'

    print "
$bg[white]$fg[black]
Please report wishes + bugs to the grml-team: http://grml.org/bugs/
Enjoy your grml system with the zsh!$reset_color"
}

# debian stuff
if [[ -r /etc/debian_version ]] ; then
    #a3# Execute \kbd{apt-cache search}
    alias acs='apt-cache search'
    #a3# Execute \kbd{apt-cache show}
    alias acsh='apt-cache show'
    #a3# Execute \kbd{apt-cache policy}
    alias acp='apt-cache policy'
    #a3# Execute \kbd{apt-get dist-upgrade}
    salias adg="apt-get dist-upgrade"
    #a3# Execute \kbd{apt-get install}
    salias agi="apt-get install"
    #a3# Execute \kbd{aptitude install}
    salias ati="aptitude install"
    #a3# Execute \kbd{apt-get upgrade}
    salias ag="apt-get upgrade"
    #a3# Execute \kbd{apt-get update}
    salias au="apt-get update"
    #a3# Execute \kbd{aptitude update ; aptitude safe-upgrade}
    salias -a up="aptitude update ; aptitude safe-upgrade"
    #a3# Execute \kbd{dpkg-buildpackage}
    alias dbp='dpkg-buildpackage'
    #a3# Execute \kbd{grep-excuses}
    alias ge='grep-excuses'

    # debian upgrade
    #f3# Execute \kbd{apt-get update \&\& }\\&\quad \kbd{apt-get dist-upgrade}
    upgrade() {
        if [[ -z "$1" ]] ; then
            $SUDO apt-get update
            $SUDO apt-get -u upgrade
        else
            ssh $1 $SUDO apt-get update
            # ask before the upgrade
            local dummy
            ssh $1 $SUDO apt-get --no-act upgrade
            echo -n 'Process the upgrade?'
            read -q dummy
            if [[ $dummy == "y" ]] ; then
                ssh $1 $SUDO apt-get -u upgrade --yes
            fi
        fi
    }

    # get a root shell as normal user in live-cd mode:
    if isgrmlcd && [[ $UID -ne 0 ]] ; then
       alias su="sudo su"
     fi

    #a1# Take a look at the syslog: \kbd{\$PAGER /var/log/syslog}
    alias llog="$PAGER /var/log/syslog"     # take a look at the syslog
    #a1# Take a look at the syslog: \kbd{tail -f /var/log/syslog}
    alias tlog="tail -f /var/log/syslog"    # follow the syslog
    #a1# (Re)-source \kbd{/etc/skel/.zshrc}
    alias zshskel="source /etc/skel/.zshrc" # source skeleton zshrc
fi

# sort installed Debian-packages by size
if check_com -c grep-status ; then
    #a3# List installed Debian-packages sorted by size
    alias debs-by-size='grep-status -FStatus -sInstalled-Size,Package -n "install ok installed" | paste -sd "  \n" | sort -rn'
fi

# if cdrecord is a symlink (to wodim) or isn't present at all warn:
if [[ -L /usr/bin/cdrecord ]] || ! check_com -c cdrecord ; then
    if check_com -c wodim ; then
        alias cdrecord="echo 'cdrecord is not provided under its original name by Debian anymore.
See #377109 in the BTS of Debian for more details.

Please use the wodim binary instead' ; return 1"
    fi
fi

# get_tw_cli has been renamed into get_3ware
if check_com -c get_3ware ; then
    get_tw_cli() {
        echo 'Warning: get_tw_cli has been renamed into get_3ware. Invoking get_3ware for you.'>&2
        get_3ware
    }
fi

# I hate lacking backward compatibility, so provide an alternative therefore
if ! check_com -c apache2-ssl-certificate ; then

    apache2-ssl-certificate() {

    print 'Debian does not ship apache2-ssl-certificate anymore (see #398520). :('
    print 'You might want to take a look at Debian the package ssl-cert as well.'
    print 'To generate a certificate for use with apache2 follow the instructions:'

    echo '

export RANDFILE=/dev/random
mkdir /etc/apache2/ssl/
openssl req $@ -new -x509 -days 365 -nodes -out /etc/apache2/ssl/apache.pem -keyout /etc/apache2/ssl/apache.pem
chmod 600 /etc/apache2/ssl/apache.pem

Run "grml-tips ssl-certificate" if you need further instructions.
'
    }
fi
# }}}

# {{{ Use hard limits, except for a smaller stack and no core dumps
unlimit
is4 && limit stack 8192
isgrmlcd && limit core 0 # important for a live-cd-system
limit -s
# }}}

# {{{ completion system

# called later (via is4 && grmlcomp)
# notice: use 'zstyle' for getting current settings
#         press ^Xh (control-x h) for getting tags in context; ^X? (control-x ?) to run complete_debug with trace output
grmlcomp() {
    # TODO: This could use some additional information

    # allow one error for every three characters typed in approximate completer
    zstyle ':completion:*:approximate:'    max-errors 'reply=( $((($#PREFIX+$#SUFFIX)/3 )) numeric )'

    # don't complete backup files as executables
    zstyle ':completion:*:complete:-command-::commands' ignored-patterns '(aptitude-*|*\~)'

    # start menu completion only if it could find no unambiguous initial string
    zstyle ':completion:*:correct:*'       insert-unambiguous true
    zstyle ':completion:*:corrections'     format $'%{\e[0;31m%}%d (errors: %e)%{\e[0m%}'
    zstyle ':completion:*:correct:*'       original true

    # activate color-completion
    zstyle ':completion:*:default'         list-colors ${(s.:.)LS_COLORS}

    # format on completion
    zstyle ':completion:*:descriptions'    format $'%{\e[0;31m%}completing %B%d%b%{\e[0m%}'

    # complete 'cd -<tab>' with menu
    zstyle ':completion:*:*:cd:*:directory-stack' menu yes select

    # insert all expansions for expand completer
    zstyle ':completion:*:expand:*'        tag-order all-expansions
    zstyle ':completion:*:history-words'   list false

    # activate menu
    zstyle ':completion:*:history-words'   menu yes

    # ignore duplicate entries
    zstyle ':completion:*:history-words'   remove-all-dups yes
    zstyle ':completion:*:history-words'   stop yes

    # match uppercase from lowercase
    zstyle ':completion:*'                 matcher-list 'm:{a-z}={A-Z}'

    # separate matches into groups
    zstyle ':completion:*:matches'         group 'yes'
    zstyle ':completion:*'                 group-name ''

    if [[ -z "$NOMENU" ]] ; then
        # if there are more than 5 options allow selecting from a menu
        zstyle ':completion:*'               menu select=5
    else
        # don't use any menus at all
        setopt no_auto_menu
    fi

    zstyle ':completion:*:messages'        format '%d'
    zstyle ':completion:*:options'         auto-description '%d'

    # describe options in full
    zstyle ':completion:*:options'         description 'yes'

    # on processes completion complete all user processes
    zstyle ':completion:*:processes'       command 'ps -au$USER'

    # offer indexes before parameters in subscripts
    zstyle ':completion:*:*:-subscript-:*' tag-order indexes parameters

    # provide verbose completion information
    zstyle ':completion:*'                 verbose true

    # recent (as of Dec 2007) zsh versions are able to provide descriptions
    # for commands (read: 1st word in the line) that it will list for the user
    # to choose from. The following disables that, because it's not exactly fast.
    zstyle ':completion:*:-command-:*:'    verbose false

    # set format for warnings
    zstyle ':completion:*:warnings'        format $'%{\e[0;31m%}No matches for:%{\e[0m%} %d'

    # define files to ignore for zcompile
    zstyle ':completion:*:*:zcompile:*'    ignored-patterns '(*~|*.zwc)'
    zstyle ':completion:correct:'          prompt 'correct to: %e'

    # Ignore completion functions for commands you don't have:
    zstyle ':completion::(^approximate*):*:functions' ignored-patterns '_*'

    # complete manual by their section
    zstyle ':completion:*:manuals'    separate-sections true
    zstyle ':completion:*:manuals.*'  insert-sections   true
    zstyle ':completion:*:man:*'      menu yes select

    # run rehash on completion so new installed program are found automatically:
    _force_rehash() {
        (( CURRENT == 1 )) && rehash
        return 1
    }

    ## correction
    # some people don't like the automatic correction - so run 'NOCOR=1 zsh' to deactivate it
    if [[ -n "$NOCOR" ]] ; then
        zstyle ':completion:*' completer _oldlist _expand _force_rehash _complete _files _ignored
        setopt nocorrect
    else
        # try to be smart about when to use what completer...
        setopt correct
        zstyle -e ':completion:*' completer '
            if [[ $_last_try != "$HISTNO$BUFFER$CURSOR" ]] ; then
                _last_try="$HISTNO$BUFFER$CURSOR"
                reply=(_complete _match _ignored _prefix _files)
            else
                if [[ $words[1] == (rm|mv) ]] ; then
                    reply=(_complete _files)
                else
                    reply=(_oldlist _expand _force_rehash _complete _ignored _correct _approximate _files)
                fi
            fi'
    fi

    # zstyle ':completion:*' completer _complete _correct _approximate
    # zstyle ':completion:*' expand prefix suffix

    # command for process lists, the local web server details and host completion
    zstyle ':completion:*:urls' local 'www' '/var/www/' 'public_html'

    # caching
    [[ -d $ZSHDIR/cache ]] && zstyle ':completion:*' use-cache yes && \
                            zstyle ':completion::complete:*' cache-path $ZSHDIR/cache/

    # host completion /* add brackets as vim can't parse zsh's complex cmdlines 8-) {{{ */
    if is42 ; then
        [[ -r ~/.ssh/known_hosts ]] && _ssh_hosts=(${${${${(f)"$(<$HOME/.ssh/known_hosts)"}:#[\|]*}%%\ *}%%,*}) || _ssh_hosts=()
        [[ -r /etc/hosts ]] && : ${(A)_etc_hosts:=${(s: :)${(ps:\t:)${${(f)~~"$(</etc/hosts)"}%%\#*}##[:blank:]#[^[:blank:]]#}}} || _etc_hosts=()
    else
        _ssh_hosts=()
        _etc_hosts=()
    fi
    hosts=(
        $(hostname)
        "$_ssh_hosts[@]"
        "$_etc_hosts[@]"
        grml.org
        localhost
    )
    zstyle ':completion:*:hosts' hosts $hosts
    #  zstyle '*' hosts $hosts

    # specify your logins:
    # my_accounts=(
    #  {grml,grml1}@foo.invalid
    #  grml-devel@bar.invalid
    # )
    # other_accounts=(
    #  {fred,root}@foo.invalid
    #  vera@bar.invalid
    # )
    # zstyle ':completion:*:my-accounts' users-hosts $my_accounts
    # zstyle ':completion:*:other-accounts' users-hosts $other_accounts

    # specify specific port/service settings:
    #  telnet_users_hosts_ports=(
    #    user1@host1:
    #    user2@host2:
    #    @mail-server:{smtp,pop3}
    #    @news-server:nntp
    #    @proxy-server:8000
    #  )
    # zstyle ':completion:*:*:telnet:*' users-hosts-ports $telnet_users_hosts_ports

    # use generic completion system for programs not yet defined; (_gnu_generic works
    # with commands that provide a --help option with "standard" gnu-like output.)
    compdef _gnu_generic tail head feh cp mv df stow uname ipacsum fetchipac

    # see upgrade function in this file
    compdef _hosts upgrade
}
# }}}

# {{{ grmlstuff
grmlstuff() {
# people should use 'grml-x'!
    startx() {
        if [[ -e /etc/X11/xorg.conf ]] ; then
            [[ -x /usr/bin/startx ]] && /usr/bin/startx "$@" || /usr/X11R6/bin/startx "$@"
        else
            echo "Please use the script \"grml-x\" for starting the X Window System
because there does not exist /etc/X11/xorg.conf yet.
If you want to use startx anyway please call \"/usr/bin/startx\"."
            return -1
        fi
    }

    xinit() {
        if [[ -e /etc/X11/xorg.conf ]] ; then
            [[ -x /usr/bin/xinit ]] && /usr/bin/xinit || /usr/X11R6/bin/xinit
        else
            echo "Please use the script \"grml-x\" for starting the X Window System.
because there does not exist /etc/X11/xorg.conf yet.
If you want to use xinit anyway please call \"/usr/bin/xinit\"."
            return -1
        fi
    }

    if check_com -c 915resolution ; then
        alias 855resolution='echo -e "Please use 915resolution as resolution modify tool for Intel graphic chipset."; return -1'
    fi

    #a1# Output version of running grml
    alias grml-version='cat /etc/grml_version'

    if check_com -c rebuildfstab ; then
        #a1# Rebuild /etc/fstab
        alias grml-rebuildfstab='rebuildfstab -v -r -config'
    fi

    if check_com -c grml-debootstrap ; then
        alias debian2hd='print "Installing debian to harddisk is possible via using grml-debootstrap." ; return 1'
    fi
}
# }}}

# {{{ now run the functions
isgrml && checkhome
is4    && isgrml    && grmlstuff
is4    && grmlcomp
# }}}

# {{{ keephack
is4 && xsource "/etc/zsh/keephack"
# }}}

# {{{ wonderful idea of using "e" glob qualifier by Peter Stephenson
# You use it as follows:
# $ NTREF=/reference/file
# $ ls -l *(e:nt:)
# This lists all the files in the current directory newer than the reference file.
# You can also specify the reference file inline; note quotes:
# $ ls -l *(e:'nt ~/.zshenv':)
is4 && nt() {
    if [[ -n $1 ]] ; then
        local NTREF=${~1}
    fi
    [[ $REPLY -nt $NTREF ]]
}
# }}}

# shell functions {{{

#f1# Provide csh compatibility
setenv()  { typeset -x "${1}${1:+=}${(@)argv[2,$#]}" }  # csh compatibility

#f1# Reload an autoloadable function
freload() { while (( $# )); do; unfunction $1; autoload -U $1; shift; done }

#f1# Reload zsh setup
reload() {
    if [[ "$#*" -eq 0 ]] ; then
        [[ -r ~/.zshrc ]] && . ~/.zshrc
    else
        local fn
        for fn in "$@"; do
            unfunction $fn
            autoload -U $fn
        done
    fi
}
compdef _functions reload freload

#f1# List symlinks in detail (more detailed version of 'readlink -f' and 'whence -s')
sll() {
    [[ -z "$1" ]] && printf 'Usage: %s <file(s)>\n' "$0" && return 1
    for i in "$@" ; do
        file=$i
        while [[ -h "$file" ]] ; do
            ls -l $file
            file=$(readlink "$file")
        done
    done
}

# fast manual access
if check_com qma ; then
    #f1# View the zsh manual
    manzsh()  { qma zshall "$1" }
    compdef _man qma
else
    manzsh()  { /usr/bin/man zshall |  vim -c "se ft=man| se hlsearch" +/"$1" - ; }
    # manzsh()  { /usr/bin/man zshall |  most +/"$1" ; }
    # [[ -f ~/.terminfo/m/mostlike ]] && MYLESS='LESS=C TERMINFO=~/.terminfo TERM=mostlike less' || MYLESS='less'
    # manzsh()  { man zshall | $MYLESS -p $1 ; }
fi

if check_com -c $PAGER ; then
    #f1# View Debian's changelog of a given package
    dchange() {
        if [[ -r /usr/share/doc/${1}/changelog.Debian.gz ]] ; then
            $PAGER /usr/share/doc/${1}/changelog.Debian.gz
        elif [[ -r /usr/share/doc/${1}/changelog.gz ]] ; then
            $PAGER /usr/share/doc/${1}/changelog.gz
        else
            if check_com -c aptitude ; then
                echo "No changelog for package $1 found, using aptitude to retrieve it."
                if isgrml ; then
                    aptitude -t unstable changelog ${1}
                else
                    aptitude changelog ${1}
                fi
            else
                echo "No changelog for package $1 found, sorry."
                return 1
            fi
        fi
    }
    _dchange() { _files -W /usr/share/doc -/ }
    compdef _dchange dchange

    #f1# View Debian's NEWS of a given package
    dnews() {
        if [[ -r /usr/share/doc/${1}/NEWS.Debian.gz ]] ; then
            $PAGER /usr/share/doc/${1}/NEWS.Debian.gz
        else
            if [[ -r /usr/share/doc/${1}/NEWS.gz ]] ; then
                $PAGER /usr/share/doc/${1}/NEWS.gz
            else
                echo "No NEWS file for package $1 found, sorry."
                return 1
            fi
        fi
    }
    _dnews() { _files -W /usr/share/doc -/ }
    compdef _dnews dnews

    #f1# View upstream's changelog of a given package
    uchange() {
        if [[ -r /usr/share/doc/${1}/changelog.gz ]] ; then
            $PAGER /usr/share/doc/${1}/changelog.gz
        else
            echo "No changelog for package $1 found, sorry."
            return 1
        fi
    }
    _uchange() { _files -W /usr/share/doc -/ }
    compdef _uchange uchange
fi

# zsh profiling
profile() {
    ZSH_PROFILE_RC=1 $SHELL "$@"
}

#f1# Edit an alias via zle
edalias() {
    [[ -z "$1" ]] && { echo "Usage: edalias <alias_to_edit>" ; return 1 } || vared aliases'[$1]' ;
}
compdef _aliases edalias

#f1# Edit a function via zle
edfunc() {
    [[ -z "$1" ]] && { echo "Usage: edfun <function_to_edit>" ; return 1 } || zed -f "$1" ;
}
compdef _functions edfunc

# use it e.g. via 'Restart apache2'
#m# f6 Start() \kbd{/etc/init.d/\em{process}}\quad\kbd{start}
#m# f6 Restart() \kbd{/etc/init.d/\em{process}}\quad\kbd{restart}
#m# f6 Stop() \kbd{/etc/init.d/\em{process}}\quad\kbd{stop}
#m# f6 Reload() \kbd{/etc/init.d/\em{process}}\quad\kbd{reload}
#m# f6 Force-Reload() \kbd{/etc/init.d/\em{process}}\quad\kbd{force-reload}
if [[ -d /etc/init.d ]] ; then
    for i in Start Restart Stop Force-Reload Reload ; do
        eval "$i() { $SUDO /etc/init.d/\$1 ${i:l} \$2 ; }"
    done
fi

#f1# Provides useful information on globbing
H-Glob() {
    echo -e "
    /      directories
    .      plain files
    @      symbolic links
    =      sockets
    p      named pipes (FIFOs)
    *      executable plain files (0100)
    %      device files (character or block special)
    %b     block special files
    %c     character special files
    r      owner-readable files (0400)
    w      owner-writable files (0200)
    x      owner-executable files (0100)
    A      group-readable files (0040)
    I      group-writable files (0020)
    E      group-executable files (0010)
    R      world-readable files (0004)
    W      world-writable files (0002)
    X      world-executable files (0001)
    s      setuid files (04000)
    S      setgid files (02000)
    t      files with the sticky bit (01000)

  print *(m-1)          # Files modified up to a day ago
  print *(a1)           # Files accessed a day ago
  print *(@)            # Just symlinks
  print *(Lk+50)        # Files bigger than 50 kilobytes
  print *(Lk-50)        # Files smaller than 50 kilobytes
  print **/*.c          # All *.c files recursively starting in \$PWD
  print **/*.c~file.c   # Same as above, but excluding 'file.c'
  print (foo|bar).*     # Files starting with 'foo' or 'bar'
  print *~*.*           # All Files that do not contain a dot
  chmod 644 *(.^x)      # make all plain non-executable files publically readable
  print -l *(.c|.h)     # Lists *.c and *.h
  print **/*(g:users:)  # Recursively match all files that are owned by group 'users'
  echo /proc/*/cwd(:h:t:s/self//) # Analogous to >ps ax | awk '{print $1}'<"
}
alias help-zshglob=H-Glob

check_com -c qma && alias ?='qma zshall'

# grep for running process, like: 'any vim'
any() {
    if [[ -z "$1" ]] ; then
        echo "any - grep for process(es) by keyword" >&2
        echo "Usage: any <keyword>" >&2 ; return 1
    else
        local STRING=$1
        local LENGTH=$(expr length $STRING)
        local FIRSCHAR=$(echo $(expr substr $STRING 1 1))
        local REST=$(echo $(expr substr $STRING 2 $LENGTH))
        ps xauwww| grep "[$FIRSCHAR]$REST"
    fi
}

# After resuming from suspend, system is paging heavily, leading to very bad interactivity.
# taken from $LINUX-KERNELSOURCE/Documentation/power/swsusp.txt
[[ -r /proc/1/maps ]] && \
deswap() {
    print 'Reading /proc/[0-9]*/maps and sending output to /dev/null, this might take a while.'
    cat $(sed -ne 's:.* /:/:p' /proc/[0-9]*/maps | sort -u | grep -v '^/dev/')  > /dev/null
    print 'Finished, running "swapoff -a; swapon -a" may also be useful.'
}

# print hex value of a number
hex() {
    [[ -n "$1" ]] && printf "%x\n" $1 || { print 'Usage: hex <number-to-convert>' ; return 1 }
}

# calculate (or eval at all ;-)) with perl => p[erl-]eval
# hint: also take a look at zcalc -> 'autoload zcalc' -> 'man zshmodules | less -p MATHFUNC'
peval() {
    [[ -n "$1" ]] && CALC="$*" || print "Usage: calc [expression]"
    perl -e "print eval($CALC),\"\n\";"
}
functions peval &>/dev/null && alias calc=peval

# brltty seems to have problems with utf8 environment and/or font Uni3-Terminus16 under
# certain circumstances, so work around it, no matter which environment we have
brltty() {
    if [[ -z "$DISPLAY" ]] ; then
        consolechars -f /usr/share/consolefonts/default8x16.psf.gz
        command brltty "$@"
    else
        command brltty "$@"
    fi
}

# just press 'asdf' keys to toggle between dvorak and us keyboard layout
aoeu() {
    echo -n 'Switching to us keyboard layout: '
    [[ -z "$DISPLAY" ]] && $SUDO loadkeys us &>/dev/null || setxkbmap us &>/dev/null
    echo 'Done'
}
asdf() {
    echo -n 'Switching to dvorak keyboard layout: '
    [[ -z "$DISPLAY" ]] && $SUDO loadkeys dvorak &>/dev/null || setxkbmap dvorak &>/dev/null
    echo 'Done'
}
# just press 'asdf' key to toggle from neon layout to us keyboard layout
uiae() {
    echo -n 'Switching to us keyboard layout: '
    setxkbmap us && echo 'Done' || echo 'Failed'
}

# set up an ipv6 tunnel
ipv6-tunnel() {
    case $1 in
        start)
            if ifconfig sit1 2>/dev/null | grep -q 'inet6 addr: 2002:.*:1::1' ; then
                print 'ipv6 tunnel already set up, nothing to be done.'
                print 'execute: "ifconfig sit1 down ; ifconfig sit0 down" to remove ipv6-tunnel.' ; return 1
            else
                [[ -n "$PUBLIC_IP" ]] || \
                    local PUBLIC_IP=$(ifconfig $(route -n | awk '/^0\.0\.0\.0/{print $8; exit}') | \
                                      awk '/inet addr:/ {print $2}' | tr -d 'addr:')

                [[ -n "$PUBLIC_IP" ]] || { print 'No $PUBLIC_IP set and could not determine default one.' ; return 1 }
                local IPV6ADDR=$(printf "2002:%02x%02x:%02x%02x:1::1" $(print ${PUBLIC_IP//./ }))
                print -n "Setting up ipv6 tunnel $IPV6ADDR via ${PUBLIC_IP}: "
                ifconfig sit0 tunnel ::192.88.99.1 up
                ifconfig sit1 add "$IPV6ADDR" && print done || print failed
            fi
            ;;
        status)
            if ifconfig sit1 2>/dev/null | grep -q 'inet6 addr: 2002:.*:1::1' ; then
                print 'ipv6 tunnel available' ; return 0
            else
                print 'ipv6 tunnel not available' ; return 1
            fi
            ;;
        stop)
            if ifconfig sit1 2>/dev/null | grep -q 'inet6 addr: 2002:.*:1::1' ; then
                print -n 'Stopping ipv6 tunnel (sit0 + sit1): '
                ifconfig sit1 down ; ifconfig sit0 down && print done || print failed
            else
                print 'No ipv6 tunnel found, nothing to be done.' ; return 1
            fi
            ;;
        *)
            print "Usage: ipv6-tunnel [start|stop|status]">&2 ; return 1
            ;;
    esac
}

# run dhclient for wireless device
iwclient() {
    salias dhclient "$(wavemon -d | awk '/device/{print $2}')"
}

# spawn a minimally set up ksh - useful if you want to umount /usr/.
minimal-shell() {
    exec env -i ENV="/etc/minimal-shellrc" HOME="$HOME" TERM="$TERM" ksh
}

# make a backup of a file
bk() {
    cp -a "$1" "${1}_$(date --iso-8601=seconds)"
}

# Switching shell safely and efficiently? http://www.zsh.org/mla/workers/2001/msg02410.html
# bash() {
#  NO_SWITCH="yes" command bash "$@"
# }
# restart () {
#  exec $SHELL $SHELL_ARGS "$@"
# }

# }}}

# log out? set timeout in seconds {{{
# TMOUT=1800
# do not log out in some specific terminals:
#  if [[ "${TERM}" == ([Exa]term*|rxvt|dtterm|screen*) ]] ; then
#    unset TMOUT
#  fi
# }}}

# {{{ make sure our environment is clean regarding colors
for color in BLUE RED GREEN CYAN WHITE ; unset $color
# }}}

# source another config file if present {{{
xsource "/etc/zsh/zshrc.local"
# }}}

# "persistent history" {{{
# just write important commands you always need to ~/.important_commands
if [[ -r ~/.important_commands ]] ; then
    fc -R ~/.important_commands
fi
# }}}

## genrefcard.pl settings {{{
### example: split functions-search 8,16,24,32
#@# split functions-search 8
## }}}

# add variable to be able to check whether the file has been read {{{
ZSHRC_GLOBAL_HAS_BEEN_READ=1
# }}}

## END OF FILE #################################################################
# vim:filetype=zsh foldmethod=marker autoindent expandtab shiftwidth=4