Bash prompt: http://i.imgur.com/Iji6yeN.png

set_prompt () {
    lastreturn=$?

    Reset='\[\e[0m\]'
    White='\[\e[1;37m\]'
    #White=$Reset #Trying stuff
    Green='\[\e[1;32m\]'
    Red='\[\e[1;31m\]'
    Yellow='\[\e[0;33m\]'
    Blue='\[\e[1;34m\]'

    # "Light" line drawing characters
    Startline='\342\224\214'
    Middleline='\342\224\234'
    Lastline='\342\224\224'
    Horizontal='\342\224\200'
    Vertical='\342\224\202'

    # "Heavy" line drawing characters
    #Startline='\342\224\217'
    #Middleline='\342\224\243'
    #Lastline='\342\224\227'
    #Horizontal='\342\224\201'
    #Vertical='\342\224\203'

    Leftgrouper='('
    Rightgrouper=')'

    # Adjust prompt symbol according to current vi mode
    Promptsymbol='>'
    #[[ $(bind -v | grep "set keymap vi") = "set keymap vi-insert" ]] && Promptsymbol=i # shit's not working


    JumpToStart='\[\e[0G\]'
    SavePos='\[\e[s\]'
    RestorePos='\[\e[u\]'
    MoveUp='\[\e[1A\]'
    MoveLeft='\[\e[1D\]'

    userhost="$Green$(whoami)@$(hostname)"
    #userhost="${Green}user@hostname"

    terminal="$Yellow$(tty | sed 's!^/dev/!!')"

    if [[ $lastreturn -eq 0 ]]; then lastreturn=""; else lastreturn="$Red$lastreturn"; fi

    currentdir="$Blue$(pwd | sed "s!^$HOME!~!")"

    wrap "$userhost" "$terminal" "$currentdir" "$lastreturn"

    PS1+="\n$Lastline$Horizontal$Leftgrouper$Promptsymbol$Rightgrouper $Reset"
}

# TODO Clean up the mess, first argument will never be properly linebroken at the moment
wrap () {
    width=$(tput cols)
    firstline=true
    restlength=$width
    PS1="$Reset$White"
    while [[ $# -ne 0 ]]; do
        colourless=$(echo -E "$1" | cut -c 13-)
        length=${#colourless}
        ((length += 3))
        if [[ -z "$1" ]]; then shift; continue
        elif [[ $restlength -eq $width ]]; then
            if [[ $firstline == "true" ]]; then PS1+="$Startline"; else PS1+="$Middleline"; fi
            PS1+="$Leftgrouper$1$White$Rightgrouper"
            ((restlength -= length))
            shift
        elif [[ $restlength -ge $length ]]; then
            PS1+="$Horizontal$Leftgrouper$1$White$Rightgrouper"
            ((restlength -= length))
            shift
        elif [[ $length -gt $width ]]; then
            textcolour=$(echo $1 | cut -c -12)
            text=$(echo -ne "$colourless" | sed 's/.\{'$(($width - 2))'\}/&\n| /g')
            linestofix=$(($(echo -n "$text" | wc -l) - 1))
            PS1+="\n$Middleline$Leftgrouper$textcolour$text$White$Rightgrouper$SavePos$JumpToStart"
            while [[ $linestofix -ge 0 ]]; do
                PS1+="$Vertical$MoveUp$MoveLeft"
                ((linestofix -= 1))
            done
            PS1+="$RestorePos"
            shift
        else
            PS1+="\n"
            restlength=$width
        fi
        firstline=false
    done
}

PROMPT_COMMAND='set_prompt'