Personal zshrc file

.zshrc

#
# ~/.zshrc
#

# If not running interactively, don't do anything
[[ $- != *i* ]] && return

# Save this arrow! 
#
# Global for saving prompt data.
PREV_COL=""

# First parameter is the color of the section.
# Second parameter is the color of the text.
# Third parameter is the text to put into the section.
function print_prompt_section()
{
    # If we're not the first section...
    if [[ "$PREV_COL" != "" && "$PREV_COL" != "$1" ]]
    then
        PROMPT="${PROMPT}%K{$1}%F{${PREV_COL}}"    # Print out arrow before.
    elif [[ "$PREV_COL" = "$1" ]]
    then
        PROMPT="${PROMPT}%F{$2}"
    fi

    PROMPT="${PROMPT}%K{$1}%F{$2} $3 "
    PREV_COL=$1
}

function finalize_prompt()
{
    if [[ "$PREV_COL" != "" ]]
    then
        PROMPT="${PROMPT}%K{default}%F{${PREV_COL}}%F{default}"
    fi

    PREV_COL=""
}

# First parameter is a directory to be printed.
function print_prompt_dir()
{
    DIRS=$1
    [[ "$DIRS" =~ ^"$HOME"(/|$) ]] && DIRS="~${DIRS#$HOME}"
    DIRS=$(echo $DIRS | sed "s/\//\n/g")

    while read -r line
    do
        if [[ $line = "~" ]]
        then
            print_prompt_section 2 15 "~"
        elif [[ $line = "" ]]
        then
            print_prompt_section 3 15 "/"
        else
            print_prompt_section 5 15 $line
        fi
    done <<< $DIRS

    unset DIRS
}

function set_prompt()
{
    PROMPT=""

    print_prompt_section 1 15 "%n"
    print_prompt_section 4 15 "%m"
    print_prompt_dir $PWD 4
    finalize_prompt

    export PROMPT="${PROMPT} %K{default}%F{default}"
}

precmd_functions+=(set_prompt)

alias ls='ls --color=auto'

#autoload -U compinit promptinit
#compinit
#promptinit

# create a zkbd compatible hash;
# to add other keys to this hash, see: man 5 terminfo
typeset -A key

key[Home]=${terminfo[khome]}

key[End]=${terminfo[kend]}
key[Insert]=${terminfo[kich1]}
key[Delete]=${terminfo[kdch1]}
key[Up]=${terminfo[kcuu1]}
key[Down]=${terminfo[kcud1]}
key[Left]=${terminfo[kcub1]}
key[Right]=${terminfo[kcuf1]}
key[PageUp]=${terminfo[kpp]}
key[PageDown]=${terminfo[knp]}

# setup key accordingly
[[ -n "${key[Home]}"     ]]  && bindkey  "${key[Home]}"     beginning-of-line
[[ -n "${key[End]}"      ]]  && bindkey  "${key[End]}"      end-of-line
[[ -n "${key[Insert]}"   ]]  && bindkey  "${key[Insert]}"   overwrite-mode
[[ -n "${key[Delete]}"   ]]  && bindkey  "${key[Delete]}"   delete-char
[[ -n "${key[Up]}"       ]]  && bindkey  "${key[Up]}"       up-line-or-history
[[ -n "${key[Down]}"     ]]  && bindkey  "${key[Down]}"     down-line-or-history
[[ -n "${key[Left]}"     ]]  && bindkey  "${key[Left]}"     backward-char
[[ -n "${key[Right]}"    ]]  && bindkey  "${key[Right]}"    forward-char
[[ -n "${key[PageUp]}"   ]]  && bindkey  "${key[PageUp]}"   beginning-of-buffer-or-history
[[ -n "${key[PageDown]}" ]]  && bindkey  "${key[PageDown]}" end-of-buffer-or-history

# Finally, make sure the terminal is in application mode, when zle is
# active. Only then are the values from $terminfo valid.
if (( ${+terminfo[smkx]} )) && (( ${+terminfo[rmkx]} )); then
    function zle-line-init () {
        printf '%s' "${terminfo[smkx]}"
    }
    function zle-line-finish () {
        printf '%s' "${terminfo[rmkx]}"
    }
    zle -N zle-line-init
    zle -N zle-line-finish
fi

export PATH=/usr/local/bin:$PATH