.zshrc

# a lot of this has been taken from the kind folks at grml.org

# append history list to the history file; this is the default but we make sure
# because it's required for share_history.
setopt append_history

# import new commands from the history file also in other zsh-session
setopt share_history

# save each command's beginning timestamp and the duration to the history file
setopt extended_history

# If a new command line being added to the history list duplicates an older
# one, the older command is removed from the list
setopt histignorealldups

# remove command lines from the history list when the first character on the
# line is a space
setopt histignorespace

# 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 auto_cd

# 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 extended_glob

# display PID when suspending processes as well
setopt longlistjobs

# try to avoid the 'zsh: no matches found...'
setopt nonomatch

# report the status of backgrounds jobs immediately
setopt notify

# whenever a command completion is attempted, make sure the entire command path
# is hashed first.
setopt hash_list_all

# not just at the end
setopt completeinword

# Don't send SIGHUP to background processes when the shell exits.
setopt nohup

# make cd push the old directory onto the directory stack.
setopt auto_pushd

# avoid "beep"ing
setopt nobeep

# don't push the same dir twice.
setopt pushd_ignore_dups

# * shouldn't match dotfiles. ever.
setopt noglobdots

# use zsh style word splitting
setopt noshwordsplit

# don't error out when unset parameters are used
setopt unset


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


# report about cpu-/system-/user-time of command if running longer than
# 5 seconds
REPORTTIME=5

# watch for everyone but me and root
watch=(notme root)

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

# Load a few modules
for mod in parameter complist deltochar mathfunc ; do
    zmodload -i zsh/${mod} 2>/dev/null || print "Notice: no ${mod} available :("
done

# autoload zsh modules when they are referenced
zmodload -a  zsh/stat    zstat
zmodload -a  zsh/zpty    zpty
zmodload -ap zsh/mapfile mapfile




# autoload wrapper - use this one instead of autoload directly
# We need to define this function as early as this, because autoloading
# 'is-at-least()' needs it.
function zrcautoload() {
    emulate -L zsh
    setopt extended_glob
    local fdir ffile
    local -i ffound

    ffile=$1
    (( ffound = 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
}

# we want color

zrcautoload colors && colors

# load the lookup subsystem if it's available on the system
zrcautoload lookupinit && lookupinit

# completion system
COMPDUMPFILE=${COMPDUMPFILE:-${ZDOTDIR:-${HOME}}/.zcompdump}
if zrcautoload compinit ; then
    compinit -d ${COMPDUMPFILE} || print 'Notice: no compinit available :('
else
    print 'Notice: no compinit available :('
    function compdef { }
fi
 

# 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%}'

# automatically complete 'cd -<tab>' and 'cd -<ctrl-d>' 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 [[ "$NOMENU" -eq 0 ]] ; 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 '_*'

# Provide more processes in completion of programs like killall:
zstyle ':completion:*:processes-names' command 'ps c -u ${USER} -o command | uniq'

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

# Search path for sudo completion
zstyle ':completion:*:sudo:*' command-path /usr/local/sbin \
                                           /usr/local/bin  \
                                           /usr/sbin       \
                                           /usr/bin        \
                                           /sbin           \
                                           /bin            \
                                           /usr/X11R6/bin

# provide .. as a completion
zstyle ':completion:*' special-dirs ..

# 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 [[ "$NOCOR" -gt 0 ]] ; 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

# 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
[[ -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=()

hosts=(
    $(hostname)
    "$_ssh_hosts[@]"
    "$_etc_hosts[@]"
    localhost
)
zstyle ':completion:*:hosts' hosts $hosts
# TODO: so, why is this here?
#  zstyle '*' hosts $hosts

# use generic completion system for programs not yet defined; (_gnu_generic works
# with commands that provide a --help option with "standard" gnu-like output.)
for compcom in cp deborphan df feh fetchipac gpasswd head hnb ipacsum mv \
               pal stow tail uname ; do
    [[ -z ${_comps[$compcom]} ]] && compdef _gnu_generic ${compcom}
done; unset compcom

# see upgrade function in this file
compdef _hosts upgrade


# Custom widgets:

## beginning-of-line OR beginning-of-buffer OR beginning of history
## by: Bart Schaefer <schaefer@brasslantern.com>, Bernhard Tittelbach
beginning-or-end-of-somewhere() {
    local hno=$HISTNO
    if [[ ( "${LBUFFER[-1]}" == $'\n' && "${WIDGET}" == beginning-of* ) || \
      ( "${RBUFFER[1]}" == $'\n' && "${WIDGET}" == end-of* ) ]]; then
        zle .${WIDGET:s/somewhere/buffer-or-history/} "$@"
    else
        zle .${WIDGET:s/somewhere/line-hist/} "$@"
        if (( HISTNO != hno )); then
            zle .${WIDGET:s/somewhere/buffer-or-history/} "$@"
        fi
    fi
}
zle -N beginning-of-somewhere beginning-or-end-of-somewhere
zle -N end-of-somewhere beginning-or-end-of-somewhere

## toggle the ,. abbreviation feature on/off
# NOABBREVIATION: default abbreviation-state
#                 0 - enabled (default)
#                 1 - disabled
NOABBREVIATION=${NOABBREVIATION:-0}

grml_toggle_abbrev() {
    if (( ${NOABBREVIATION} > 0 )) ; then
        NOABBREVIATION=0
    else
        NOABBREVIATION=1
    fi
}
zle -N grml_toggle_abbrev

# add a command line to the shells history without executing it
commit-to-history() {
    print -s ${(z)BUFFER}
    zle send-break
}
zle -N commit-to-history

# 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


# 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
    local alcontext=${1:-$alcontext}

    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() {
    emulate -L zsh
    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-HandleContext() {
    zle Accept-Line

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

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

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

    Accept-Line 'preprocess'

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

    if    [[ -n ${com}               ]] \
       && [[ -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'
        Accept-Line-HandleContext

        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'
            Accept-Line-HandleContext

            return
        fi

        if zstyle -t ":acceptline:${alcontext}" nocompwarn ; then
            alcontext='normal'
            Accept-Line-HandleContext
        else
            # prepare warning message for the user, configurable via zstyle.
            zstyle -s ":acceptline:${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}"
        fi
        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'
        Accept-Line-HandleContext

        return
    fi

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

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


# 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 'ctrl-x .' 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 '${grep_options:+"${grep_options[*]}"}
    '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
    'co'   './configure && make && sudo make install'
)

zleiab() {
    emulate -L zsh
    setopt extendedglob
    local MATCH

    if (( NOABBREVIATION > 0 )) ; then
        LBUFFER="${LBUFFER},."
        return 0
    fi

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

zle -N zleiab

help-show-abk()
{
  zle -M "$(print "Type ,. after these abbreviations to expand them:"; print -a -C 2 ${(kv)abk})"
}

zle -N help-show-abk


if zrcautoload history-search-end; then
    zle -N history-beginning-search-backward-end history-search-end
    zle -N history-beginning-search-forward-end  history-search-end
fi
zle -C hist-complete complete-word _generic
zstyle ':completion:hist-complete:*' completer _history


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






PROMPT=$'\n'"%n@%m"$'\n'"%1~ $ "
RPROMPT="[%{$fg_no_bold[yellow]%}%?%{$reset_color%}]"


# Use emacs-like key bindings by default:
bindkey -e