/* Diff output generators and invocation shims. */
/*
 * Copyright (c) 2020 Neels Hofmeyr <neels@hofmeyr.de>
 *
 * Permission to use, copy, modify, and 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.
 */

struct diff_input_info {
	const char *left_path;
	const char *right_path;
};

int diff_output_plain(FILE *dest, const struct diff_input_info *info,
			       const struct diff_result *result);
int diff_output_unidiff(FILE *dest, const struct diff_input_info *info,
				 const struct diff_result *result,
				 unsigned int context_lines);
int diff_output_info(FILE *dest, const struct diff_input_info *info);
void diff_output_lines(FILE *dest, const char *prefix,
		       struct diff_atom *start_atom, unsigned int count);