/*
 * UNG's Not GNU
 *
 * Copyright (c) 2011-2017, Jakob Kaivo <jkk@ung.org>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 */

#include "ed.h"
#include <locale.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

static int ed(const char *path)
{
	if (path) {
		ed_edit(0, 0, path);
	}

	for (;;) {
		char *line = NULL;
		size_t n = 0;

		if (ed_state.prompt_mode) {
			printf("%s", ed_state.prompt);
			fflush(stdout);
		}
		getline(&line, &n, stdin);
		ed_command(line);
		free(line);
	}

	return 0;
}

int main(int argc, char *argv[])
{
	int c;
	while ((c = getopt(argc, argv, "p:s")) != -1) {
		switch (c) {
		case 'p':	/** set prompt to [prompt] **/
			ed_state.prompt_mode = true;
			ed_state.prompt = optarg;
			break;

		case 's':	/** suppress byte counts **/
			ed_state.suppress = true;
			break;

		default:
			return 1;
		}
	}

	setlocale(LC_ALL, "");
	signal(SIGINT, ed_sigint);
	signal(SIGHUP, ed_sighup);
	signal(SIGQUIT, SIG_IGN);

	return ed(argv[optind]);
}

struct ed_state ed_state;