My `.zshrc` file. This gist is used by the script itself to maintain itself up-to-date.

.zshrc

OPEN_SYMBOL="❮"
CLOSE_SYMBOL="❯"

PROMPT=" %F{cyan}%m: %B%n%b%F{cyan} \${CLOSE_SYMBOL}%f "
RPROMPT="\${STATUS_PROMPT}%F{blue}\${OPEN_SYMBOL} %B%1~%b%f"

LAST_RET=0

setopt PROMPT_SUBST
setopt TRANSIENT_RPROMPT

function precmd() {
    LAST_RET=$?
	
    if [ ${LAST_RET} -ne 0 ]
    then
	STATUS_PROMPT="%F{yellow}${OPEN_SYMBOL} ⎋ ${LAST_RET}%f "
    else
	STATUS_PROMPT=""
    fi
}

SYSTEM=$(uname)

if [ $SYSTEM = "Linux" ]
then
    alias ls="ls --color -F -x"
else
    alias ls="ls -FG"
fi

alias ll="ls -lh"
alias la="ls -A"
alias lll="ls -lhA"

if [ $SYSTEM = "Darwin" ]
then
    # Homebrew
    PATH="/usr/local/bin:/usr/local/sbin:/bin:/sbin:/usr/bin:/usr/sbin"
    export PATH
fi

function icanhas() {
    which $1 2>&1 >/dev/null
    return $?
}

PAGER=less
icanhas most && PAGER=most

EDITOR=vi
icanhas emacs && EDITOR="emacs -nw"
test ${SYSTEM} = "Darwin" && icanhas subl && EDITOR="subl -n -w"

export PAGER
export EDITOR
alias e="$EDITOR"

LANG=en_US.UTF-8
LC_TIME=fr_FR.UTF-8
export LANG LC_TIME

autoload compinit
compinit

function __updaterc() {
    cd /tmp
    curl -\#L "https://gist.github.com/adaedra/5587760/raw" > zshrc

    mv ~/.zshrc ~/.zshrc.bak
    mv zshrc ~/.zshrc
}

alias updaterc="( __updaterc ) && . ~/.zshrc"
alias todo="grep -noER '(TODO|FIXME).+$' ."

icanhas rbenv && eval "$(rbenv init -)"

true # Avoid to have a return for first prompt...