watch.plugin.zsh

# ------------------------------------------------------------------------------
# Description
# -----------
#
# watch will be inserted before the command
#
# ------------------------------------------------------------------------------
# Authors
# -------
#
# * Connard <baptiste.gc@student-cs.fr>
#
# ------------------------------------------------------------------------------

watch-command-line() {
    [[ -z $BUFFER ]] && LBUFFER="$(fc -ln -1)"
    if [[ $BUFFER == watch\ * ]]; then
        if [[ ${#LBUFFER} -le 4 ]]; then
            RBUFFER="${BUFFER#watch }"
            LBUFFER=""
        else
            LBUFFER="${LBUFFER#watch }"
        fi
    else
        LBUFFER="watch $LBUFFER"
    fi
}

zle -N watch-command-line

# Defined shortcut keys: [Alt] [Esc]
bindkey '^\e' watch-command-line