1 /* Output all lines of a diff_result. */
2 /*
3  * Copyright (c) 2020 Neels Hofmeyr <neels@hofmeyr.de>
4  *
5  * Permission to use, copy, modify, and distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #include <diff/diff_output.h>
19 
20 enum diff_rc
21 diff_output_plain(FILE *dest, const struct diff_input_info *info,
22 		  const struct diff_result *result)
23 {
24 	if (!result)
25 		return DIFF_RC_EINVAL;
26 	if (result->rc != DIFF_RC_OK)
27 		return result->rc;
28 
29 	int i;
30 	for (i = 0; i < result->chunks.len; i++) {
31 		struct diff_chunk *c = &result->chunks.head[i];
32 		if (c->left_count && c->right_count)
33 			diff_output_lines(dest, c->solved ? " " : "?", c->left_start, c->left_count);
34 		else if (c->left_count && !c->right_count)
35 			diff_output_lines(dest, c->solved ? "-" : "?", c->left_start, c->left_count);
36 		else if (c->right_count && !c->left_count)
37 			diff_output_lines(dest, c->solved ? "+" : "?", c->right_start, c->right_count);
38 	}
39 	return DIFF_RC_OK;
40 }