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Userland: Move command-line utilities to Userland/Utilities/
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142 changed files with 58 additions and 58 deletions
168
Userland/Utilities/cal.cpp
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168
Userland/Utilities/cal.cpp
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/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibCore/ArgsParser.h>
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#include <LibCore/DateTime.h>
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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const int line_width = 70;
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const int line_count = 8;
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const int column_width = 22;
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char print_buffer[line_width * line_count];
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char temp_buffer[line_width * 8];
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int target_year;
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int target_month;
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int target_day;
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int current_year;
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int current_month;
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static void append_to_print(char* buffer, int row, int column, char* text)
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{
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int starting_point = (line_width * row) + (column * column_width);
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for (int i = 0; text[i] != '\0'; i++) {
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buffer[starting_point + i] = text[i];
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}
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}
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static void insert_month_to_print(int column, int month, int year)
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{
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int printing_column = column;
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int printing_row = 0;
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// FIXME: Both the month name and month header text should be provided by a locale
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sprintf(temp_buffer, " %02u - %04u ", month, year);
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append_to_print(print_buffer, printing_row, printing_column, temp_buffer);
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printing_row++;
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sprintf(temp_buffer, "Su Mo Tu We Th Fr Sa");
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append_to_print(print_buffer, printing_row, printing_column, temp_buffer);
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printing_row++;
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int day_to_print = 1;
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auto date_time = Core::DateTime::create(year, month, 1);
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int first_day_of_week_for_month = date_time.weekday();
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int days_in_the_month = date_time.days_in_month();
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int last_written_chars = 0;
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for (int i = 1; day_to_print <= days_in_the_month; ++i) {
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if (i - 1 < first_day_of_week_for_month) {
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last_written_chars += sprintf(temp_buffer + last_written_chars, " ");
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} else {
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if (year == current_year && month == current_month && target_day == day_to_print) {
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// FIXME: To replicate Unix cal it would be better to use "\x1b[30;47m%2d\x1b[0m " in here instead of *.
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// However, doing that messes up the layout.
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last_written_chars += sprintf(temp_buffer + last_written_chars, "%2d*", day_to_print);
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} else {
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last_written_chars += sprintf(temp_buffer + last_written_chars, "%2d ", day_to_print);
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}
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day_to_print++;
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}
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append_to_print(print_buffer, printing_row, printing_column, temp_buffer);
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if (i % 7 == 0) {
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printing_row++;
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memset(temp_buffer, ' ', line_width * 8);
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temp_buffer[line_width * 8 - 1] = '\0';
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last_written_chars = 0;
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}
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}
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}
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static void clean_buffers()
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{
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for (int i = 1; i < line_width * line_count; ++i) {
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print_buffer[i - 1] = i % line_width == 0 ? '\n' : ' ';
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}
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print_buffer[line_width * line_count - 1] = '\0';
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for (int i = 0; i < line_width; ++i) {
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temp_buffer[i] = ' ';
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}
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temp_buffer[line_width - 1] = '\0';
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}
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int main(int argc, char** argv)
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{
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int day = 0;
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int month = 0;
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int year = 0;
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Core::ArgsParser args_parser;
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args_parser.set_general_help("Display a nice overview of a month or year, defaulting to the current month.");
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// FIXME: This should ensure two values get parsed as month + year
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args_parser.add_positional_argument(day, "Day of year", "day", Core::ArgsParser::Required::No);
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args_parser.add_positional_argument(month, "Month", "month", Core::ArgsParser::Required::No);
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args_parser.add_positional_argument(year, "Year", "year", Core::ArgsParser::Required::No);
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args_parser.parse(argc, argv);
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time_t now = time(nullptr);
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auto* tm = localtime(&now);
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// Hack: workaround two values parsing as day + month.
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if (day && month && !year) {
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year = month;
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month = day;
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day = 0;
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}
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bool year_mode = !day && !month && year;
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if (!year)
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year = tm->tm_year + 1900;
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if (!month)
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month = tm->tm_mon + 1;
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if (!day)
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day = tm->tm_mday;
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current_year = year;
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current_month = month;
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clean_buffers();
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if (year_mode) {
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printf(" ");
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printf("Year %4d", year);
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printf(" \n\n");
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for (int i = 1; i < 12; ++i) {
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insert_month_to_print(0, i++, year);
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insert_month_to_print(1, i++, year);
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insert_month_to_print(2, i, year);
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printf("%s\n", print_buffer);
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clean_buffers();
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}
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} else {
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insert_month_to_print(0, month, year);
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printf("%s\n\n", print_buffer);
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clean_buffers();
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}
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return 0;
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}
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