# Make Bash more like Zsh


# Hooks
# derived from http://glyf.livejournal.com/63106.html

# default: NOOPs
function preexec { :; }
function precmd  { :; }
function chpwd   { :; }

__cd_invoke_chpwd() {
    builtin cd $@
    chpwd
}

__preexec_invoke_exec () {
    local this_command;

    [ -n "$COMP_LINE" ] && return  # completion
    [ "$BASH_COMMAND" = "$PROMPT_COMMAND" ] && return  # precmd

    this_command=`history 1 | sed -e "s/^[ ]*[0-9]*[ ]*//g"`;
    preexec "$this_command"
}

# set up the hooks
PROMPT_COMMAND="precmd"
trap '__preexec_invoke_exec' DEBUG
cd() { __cd_invoke_chpwd $@; }


# clears a line that was not terminated by a LF fixing the dangling prompt
# issue by marking it with a reversed %, like zsh
clear_incomplete_line() {
    local row
    local col

    # ask for cursor position then read answer
    # TODO: fix read: mashing keyboard makes syntax errors
    stty -echo
    echo -en "\033[6n"
    IFS=';' read -r -d R -a pos
    stty echo

    # extract tput-compatible answer
    row=$(( ${pos[0]:2} - 1 ))
    col=$(( ${pos[1]} - 1 ))

    # not on first column? do clean up: fill with spaces and rag left
    if [[ $col != 0 ]]; then
        printf "\e[7m%%\e[m"
        printf "%*s\r" $(( COLUMNS - $col ))
    fi
}