1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
/* Normal-format output routines for GNU DIFF.
Copyright (C) 1988-1989, 1993, 1995, 1998, 2001, 2006, 2009-2013, 2015-2017
Free Software Foundation, Inc.
This file is part of GNU DIFF.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "diff.h"
static void print_normal_hunk (struct change *);
/* Print the edit-script SCRIPT as a normal diff.
INF points to an array of descriptions of the two files. */
void
print_normal_script (struct change *script)
{
print_script (script, find_change, print_normal_hunk);
}
/* Print a hunk of a normal diff.
This is a contiguous portion of a complete edit script,
describing changes in consecutive lines. */
static void
print_normal_hunk (struct change *hunk)
{
lin first0, last0, first1, last1;
register lin i;
/* Determine range of line numbers involved in each file. */
enum changes changes = analyze_hunk (hunk, &first0, &last0, &first1, &last1);
if (!changes)
return;
begin_output ();
/* Print out the line number header for this hunk */
set_color_context (LINE_NUMBER_CONTEXT);
print_number_range (',', &files[0], first0, last0);
fputc (change_letter[changes], outfile);
print_number_range (',', &files[1], first1, last1);
set_color_context (RESET_CONTEXT);
fputc ('\n', outfile);
/* Print the lines that the first file has. */
if (changes & OLD)
{
if (first0 <= last0)
set_color_context (DELETE_CONTEXT);
for (i = first0; i <= last0; i++)
{
print_1_line_nl ("<", &files[0].linbuf[i], true);
if (i == last0)
set_color_context (RESET_CONTEXT);
if (files[0].linbuf[i + 1][-1] == '\n')
putc ('\n', outfile);
}
}
if (changes == CHANGED)
fputs ("---\n", outfile);
/* Print the lines that the second file has. */
if (changes & NEW)
{
if (first1 <= last1)
set_color_context (ADD_CONTEXT);
for (i = first1; i <= last1; i++)
{
print_1_line_nl (">", &files[1].linbuf[i], true);
if (i == last1)
set_color_context (RESET_CONTEXT);
if (files[1].linbuf[i + 1][-1] == '\n')
putc ('\n', outfile);
}
}
}
|
