+}
+
+# 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=(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=''