1 fe621944 2020-11-10 stsp /* Output all lines of a diff_result. */
 2 fe621944 2020-11-10 stsp /*
 3 fe621944 2020-11-10 stsp  * Copyright (c) 2020 Neels Hofmeyr <neels@hofmeyr.de>
 4 fe621944 2020-11-10 stsp  *
 5 fe621944 2020-11-10 stsp  * Permission to use, copy, modify, and distribute this software for any
 6 fe621944 2020-11-10 stsp  * purpose with or without fee is hereby granted, provided that the above
 7 fe621944 2020-11-10 stsp  * copyright notice and this permission notice appear in all copies.
 8 fe621944 2020-11-10 stsp  *
 9 fe621944 2020-11-10 stsp  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 fe621944 2020-11-10 stsp  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 fe621944 2020-11-10 stsp  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 fe621944 2020-11-10 stsp  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 fe621944 2020-11-10 stsp  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 fe621944 2020-11-10 stsp  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 fe621944 2020-11-10 stsp  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 fe621944 2020-11-10 stsp  */
17 fe621944 2020-11-10 stsp 
18 fe621944 2020-11-10 stsp #include <errno.h>
19 f3c44083 2020-11-14 naddy #include <stdint.h>
20 fe621944 2020-11-10 stsp #include <stdio.h>
21 fe621944 2020-11-10 stsp #include <stdbool.h>
22 fe621944 2020-11-10 stsp #include <stdlib.h>
23 fe621944 2020-11-10 stsp 
24 fe621944 2020-11-10 stsp #include <arraylist.h>
25 fe621944 2020-11-10 stsp #include <diff_main.h>
26 fe621944 2020-11-10 stsp #include <diff_output.h>
27 fe621944 2020-11-10 stsp 
28 fe621944 2020-11-10 stsp #include "diff_internal.h"
29 fe621944 2020-11-10 stsp 
30 fe621944 2020-11-10 stsp int
31 fe621944 2020-11-10 stsp diff_output_plain(struct diff_output_info **output_info, FILE *dest,
32 fe621944 2020-11-10 stsp 		 const struct diff_input_info *info,
33 fe621944 2020-11-10 stsp 		 const struct diff_result *result)
34 fe621944 2020-11-10 stsp {
35 fe621944 2020-11-10 stsp 	struct diff_output_info *outinfo = NULL;
36 fe621944 2020-11-10 stsp 	int i, rc;
37 fe621944 2020-11-10 stsp 
38 fe621944 2020-11-10 stsp 	if (!result)
39 fe621944 2020-11-10 stsp 		return EINVAL;
40 fe621944 2020-11-10 stsp 	if (result->rc != DIFF_RC_OK)
41 fe621944 2020-11-10 stsp 		return result->rc;
42 fe621944 2020-11-10 stsp 	
43 fe621944 2020-11-10 stsp 	if (output_info) {
44 fe621944 2020-11-10 stsp 		*output_info = diff_output_info_alloc();
45 fe621944 2020-11-10 stsp 		if (*output_info == NULL)
46 fe621944 2020-11-10 stsp 			return errno;
47 fe621944 2020-11-10 stsp 		outinfo = *output_info;
48 fe621944 2020-11-10 stsp 	}
49 fe621944 2020-11-10 stsp 
50 fe621944 2020-11-10 stsp 	for (i = 0; i < result->chunks.len; i++) {
51 fe621944 2020-11-10 stsp 		struct diff_chunk *c = &result->chunks.head[i];
52 fe621944 2020-11-10 stsp 		if (c->left_count && c->right_count)
53 fe621944 2020-11-10 stsp 			rc = diff_output_lines(outinfo, dest,
54 fe621944 2020-11-10 stsp 					  c->solved ? " " : "?",
55 fe621944 2020-11-10 stsp 					  c->left_start, c->left_count);
56 fe621944 2020-11-10 stsp 		else if (c->left_count && !c->right_count)
57 fe621944 2020-11-10 stsp 			rc = diff_output_lines(outinfo, dest,
58 fe621944 2020-11-10 stsp 					  c->solved ? "-" : "?",
59 fe621944 2020-11-10 stsp 					  c->left_start, c->left_count);
60 fe621944 2020-11-10 stsp 		else if (c->right_count && !c->left_count)
61 fe621944 2020-11-10 stsp 			rc = diff_output_lines(outinfo, dest,
62 fe621944 2020-11-10 stsp 					  c->solved ? "+" : "?",
63 fe621944 2020-11-10 stsp 					  c->right_start, c->right_count);
64 fe621944 2020-11-10 stsp 		if (rc)
65 fe621944 2020-11-10 stsp 			return rc;
66 fe621944 2020-11-10 stsp 	}
67 fe621944 2020-11-10 stsp 	return DIFF_RC_OK;
68 fe621944 2020-11-10 stsp }