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
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/ArgsParser.h>
#include <LibCore/DateTime.h>
#include <LibMain/Main.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
const int line_width = 70;
const int line_count = 8;
const int column_width = 22;
char print_buffer[line_width * line_count];
char temp_buffer[line_width * 8];
int target_day;
int current_year;
int current_month;
static void append_to_print(char* buffer, int row, int column, char* text)
{
int starting_point = (line_width * row) + (column * column_width);
for (int i = 0; text[i] != '\0'; i++) {
buffer[starting_point + i] = text[i];
}
}
static void insert_month_to_print(int column, int month, int year)
{
int printing_column = column;
int printing_row = 0;
// FIXME: Both the month name and month header text should be provided by a locale
sprintf(temp_buffer, " %02u - %04u ", month, year);
append_to_print(print_buffer, printing_row, printing_column, temp_buffer);
printing_row++;
sprintf(temp_buffer, "Su Mo Tu We Th Fr Sa");
append_to_print(print_buffer, printing_row, printing_column, temp_buffer);
printing_row++;
int day_to_print = 1;
auto date_time = Core::DateTime::create(year, month, 1);
int first_day_of_week_for_month = date_time.weekday();
int days_in_the_month = date_time.days_in_month();
int last_written_chars = 0;
for (int i = 1; day_to_print <= days_in_the_month; ++i) {
if (i - 1 < first_day_of_week_for_month) {
last_written_chars += sprintf(temp_buffer + last_written_chars, " ");
} else {
if (year == current_year && month == current_month && target_day == day_to_print) {
// FIXME: To replicate Unix cal it would be better to use "\x1b[30;47m%2d\x1b[0m " in here instead of *.
// However, doing that messes up the layout.
last_written_chars += sprintf(temp_buffer + last_written_chars, "%2d*", day_to_print);
} else {
last_written_chars += sprintf(temp_buffer + last_written_chars, "%2d ", day_to_print);
}
day_to_print++;
}
append_to_print(print_buffer, printing_row, printing_column, temp_buffer);
if (i % 7 == 0) {
printing_row++;
memset(temp_buffer, ' ', line_width * 8);
temp_buffer[line_width * 8 - 1] = '\0';
last_written_chars = 0;
}
}
}
static void clean_buffers()
{
for (int i = 1; i < line_width * line_count; ++i) {
print_buffer[i - 1] = i % line_width == 0 ? '\n' : ' ';
}
print_buffer[line_width * line_count - 1] = '\0';
for (int i = 0; i < line_width; ++i) {
temp_buffer[i] = ' ';
}
temp_buffer[line_width - 1] = '\0';
}
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
int day = 0;
int month = 0;
int year = 0;
Core::ArgsParser args_parser;
args_parser.set_general_help("Display a nice overview of a month or year, defaulting to the current month.");
// FIXME: This should ensure two values get parsed as month + year
args_parser.add_positional_argument(day, "Day of year", "day", Core::ArgsParser::Required::No);
args_parser.add_positional_argument(month, "Month", "month", Core::ArgsParser::Required::No);
args_parser.add_positional_argument(year, "Year", "year", Core::ArgsParser::Required::No);
args_parser.parse(arguments);
time_t now = time(nullptr);
auto* tm = localtime(&now);
// Hack: workaround two values parsing as day + month.
if (day && month && !year) {
year = month;
month = day;
day = 0;
}
bool year_mode = !day && !month && year;
if (!year)
year = tm->tm_year + 1900;
if (!month)
month = tm->tm_mon + 1;
if (!day)
day = tm->tm_mday;
current_year = year;
current_month = month;
clean_buffers();
if (year_mode) {
out(" Year {:04} ", year);
outln();
outln();
for (int i = 1; i < 12; ++i) {
insert_month_to_print(0, i++, year);
insert_month_to_print(1, i++, year);
insert_month_to_print(2, i, year);
outln("{}", print_buffer);
clean_buffers();
}
} else {
insert_month_to_print(0, month, year);
outln("{}", print_buffer);
clean_buffers();
}
return 0;
}
|
