#!/bin/zsh -i
# .files|Argshell
# (c) 2015 Taeyeon Mori

# Synopsis
function synopsis() {
    print "Synopsis: $1 [-h] [-e] [-l|-ll]  <command...>"
    print ""
    print "Run a command repeatedly, with different arguments."
    print ""
    print "Arguments:"
    print "    -h    Show this help message"
    print "    -l    Treat additional arguments as literal"
    print "    -ll   Treat the whole command as literal"
    print ""
    print "[.files|argshell] Ver 1.0 (c) 2015 Taeyeon Mori"
}

# Parse options
EVAL_LINE=true
EVAL_CMD=true

while true; do
    if [ "$1" = "-l" ]; then
        EVAL_LINE=false
    elif [ "$1" = "-ll" ]; then
        EVAL_LINE=false
        EVAL_CMD=false
    elif [ "$1" = "-h" ]; then
        synopsis "$0"
        exit 0
    else
        break
    fi
    shift
done

if [ $# -lt 1 ]; then
    synopsis "$0"
    exit 1
fi

# The prompt
PROMPT="$* => "

prompt() {
    echo -n "$2"
    read $1
}

# Do the work
while prompt args "$PROMPT"; do
    if $EVAL_LINE; then
        eval "$@" $args
    elif $EVAL_CMD; then
        eval "$@" `python -c "import shlex;print(' '.join(\"'%s'\" % s.replace(\"'\",\"'\''\") for s in shlex.split(r'''$args''')))"`
    else
        "$@" $args
    fi
done