859 lines
22 KiB
C
859 lines
22 KiB
C
/*
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* Copyright (c) 1989, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Kim Letkeman.
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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
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* 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
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS 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
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* 1999-02-01 Jean-Francois Bignolles: added option '-m' to display
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* monday as the first day of the week.
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* 1999-02-22 Arkadiusz Mi<4D>kiewicz <misiek@pld.ORG.PL>
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* - added Native Language Support
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*
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* 2000-09-01 Michael Charles Pruznick <dummy@netwiz.net>
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* Added "-3" option to print prev/next month with current.
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* Added over-ridable default NUM_MONTHS and "-1" option to
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* get traditional output when -3 is the default. I hope that
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* enough people will like -3 as the default that one day the
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* product can be shipped that way.
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*
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* 2001-05-07 Pablo Saratxaga <pablo@mandrakesoft.com>
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* Fixed the bugs with multi-byte charset (zg: cjk, utf-8)
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* displaying. made the 'month year' ("%s %d") header translatable
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* so it can be adapted to conventions used by different languages
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* added support to read "first_weekday" locale information
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* still to do: support for 'cal_direction' (will require a major
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* rewrite of the displaying) and proper handling of RTL scripts
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*/
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#include <sys/types.h>
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include <err.h>
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#include "nls.h"
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#if defined(HAVE_LIBNCURSES) || defined(HAVE_LIBNCURSESW)
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#ifdef HAVE_NCURSES_H
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#include <ncurses.h>
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#elif defined(HAVE_NCURSES_NCURSES_H)
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#include <ncurses/ncurses.h>
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#endif
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#include <term.h> /* include after <curses.h> */
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static void
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my_setupterm(const char *term, int fildes, int *errret) {
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setupterm((char*)term, fildes, errret);
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}
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static void
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my_putstring(char *s) {
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putp(s);
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}
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static const char *
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my_tgetstr(char *s, char *ss) {
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const char* ret = tigetstr(ss);
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if (!ret || ret==(char*)-1)
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return "";
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else
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return ret;
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}
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#elif defined(HAVE_LIBTERMCAP)
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#include <termcap.h>
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char termbuffer[4096];
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char tcbuffer[4096];
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char *strbuf = termbuffer;
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static void
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my_setupterm(const char *term, int fildes, int *errret) {
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*errret = tgetent(tcbuffer, term);
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}
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static void
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my_putstring(char *s) {
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tputs (s, 1, putchar);
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}
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static const char *
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my_tgetstr(char *s, char *ss) {
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const char* ret = tgetstr(s, &strbuf);
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if (!ret)
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return "";
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else
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return ret;
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}
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#else /* ! (HAVE_LIBTERMCAP || HAVE_LIBNCURSES || HAVE_LIBNCURSESW) */
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static void
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my_putstring(char *s) {
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fputs(s, stdout);
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}
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#endif
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const char *term="";
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const char *Senter="", *Sexit="";/* enter and exit standout mode */
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int Slen; /* strlen of Senter+Sexit */
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char *Hrow; /* pointer to highlighted row in month */
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#ifdef HAVE_LANGINFO_H
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# include <langinfo.h>
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#else
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# include <localeinfo.h> /* libc4 only */
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#endif
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#include "widechar.h"
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#define SIZE(a) (sizeof(a)/sizeof((a)[0]))
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/* allow compile-time define to over-ride default */
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#ifndef NUM_MONTHS
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#define NUM_MONTHS 1
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#endif
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#if ( NUM_MONTHS != 1 && NUM_MONTHS !=3 )
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#error NUM_MONTHS must be 1 or 3
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#endif
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#define THURSDAY 4 /* for reformation */
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#define SATURDAY 6 /* 1 Jan 1 was a Saturday */
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#define FIRST_MISSING_DAY 639799 /* 3 Sep 1752 */
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#define NUMBER_MISSING_DAYS 11 /* 11 day correction */
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#define MAXDAYS 42 /* slots in a month array */
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#define SPACE -1 /* used in day array */
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static int days_in_month[2][13] = {
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{0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
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{0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
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};
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#define SEP1752_OFS 4 /* sep1752[4] is a Sunday */
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/* 1 Sep 1752 is represented by sep1752[6] and j_sep1752[6] */
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int sep1752[MAXDAYS+6] = {
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SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, 1, 2, 14, 15, 16,
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17, 18, 19, 20, 21, 22, 23,
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24, 25, 26, 27, 28, 29, 30,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE
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}, j_sep1752[MAXDAYS+6] = {
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SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, 245, 246, 258, 259, 260,
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261, 262, 263, 264, 265, 266, 267,
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268, 269, 270, 271, 272, 273, 274,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE
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}, empty[MAXDAYS] = {
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE
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};
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#define DAY_LEN 3 /* 3 spaces per day */
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#define J_DAY_LEN 4 /* 4 spaces per day */
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#define WEEK_LEN 21 /* 7 days * 3 characters */
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#define J_WEEK_LEN 28 /* 7 days * 4 characters */
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#define HEAD_SEP 2 /* spaces between day headings */
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#define J_HEAD_SEP 2
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/* utf-8 can have up to 6 bytes per char; and an extra byte for ending \0 */
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char day_headings[WEEK_LEN*6+1];
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/* weekstart = 1 => " M Tu W Th F S S " */
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char j_day_headings[J_WEEK_LEN*6+1];
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/* weekstart = 1 => " M Tu W Th F S S " */
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const char *full_month[12];
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/* leap year -- account for gregorian reformation in 1752 */
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#define leap_year(yr) \
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((yr) <= 1752 ? !((yr) % 4) : \
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(!((yr) % 4) && ((yr) % 100)) || !((yr) % 400))
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/* number of centuries since 1700, not inclusive */
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#define centuries_since_1700(yr) \
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((yr) > 1700 ? (yr) / 100 - 17 : 0)
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/* number of centuries since 1700 whose modulo of 400 is 0 */
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#define quad_centuries_since_1700(yr) \
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((yr) > 1600 ? ((yr) - 1600) / 400 : 0)
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/* number of leap years between year 1 and this year, not inclusive */
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#define leap_years_since_year_1(yr) \
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((yr) / 4 - centuries_since_1700(yr) + quad_centuries_since_1700(yr))
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/* 0 => sunday, 1 => monday */
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int weekstart=0;
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int julian;
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#define TODAY_FLAG 0x400 /* flag day for highlighting */
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#define FMT_ST_LINES 8
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#define FMT_ST_CHARS 300 /* 90 suffices in most locales */
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struct fmt_st
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{
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char s[FMT_ST_LINES][FMT_ST_CHARS];
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};
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char * ascii_day(char *, int);
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int center_str(const char* src, char* dest, size_t dest_size, int width);
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void center(const char *, int, int);
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void day_array(int, int, int, int *);
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int day_in_week(int, int, int);
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int day_in_year(int, int, int);
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void yearly(int, int);
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void j_yearly(int, int);
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void do_monthly(int, int, int, struct fmt_st*);
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void monthly(int, int, int);
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void monthly3(int, int, int);
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void trim_trailing_spaces(char *);
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void usage(void);
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void headers_init(void);
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extern char *__progname;
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int
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main(int argc, char **argv) {
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struct tm *local_time;
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time_t now;
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int ch, day, month, year, yflag;
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char *progname, *p;
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int num_months = NUM_MONTHS;
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progname = argv[0];
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if ((p = strrchr(progname, '/')) != NULL)
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progname = p+1;
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__progname = progname;
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setlocale(LC_ALL, "");
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bindtextdomain(PACKAGE, LOCALEDIR);
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textdomain(PACKAGE);
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#if defined(HAVE_LIBNCURSES) || defined(HAVE_LIBNCURSESW) || defined(HAVE_LIBTERMCAP)
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if ((term = getenv("TERM"))) {
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int ret;
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my_setupterm(term, 1, &ret);
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if (ret > 0) {
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Senter = my_tgetstr("so","smso");
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Sexit = my_tgetstr("se","rmso");
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Slen = strlen(Senter) + strlen(Sexit);
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}
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}
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#endif
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/*
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* The traditional Unix cal utility starts the week at Sunday,
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* while ISO 8601 starts at Monday. We read the start day from
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* the locale database, which can be overridden with the
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* -s (Sunday) or -m (Monday) options.
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*/
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#if HAVE_DECL__NL_TIME_WEEK_1STDAY
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/*
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* You need to use 2 locale variables to get the first day of the week.
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* This is needed to support first_weekday=2 and first_workday=1 for
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* the rare case where working days span across 2 weeks.
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* This shell script shows the combinations and calculations involved:
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for LANG in en_US ru_RU fr_FR csb_PL POSIX; do
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printf "%s:\t%s + %s -1 = " $LANG $(locale week-1stday first_weekday)
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date -d"$(locale week-1stday) +$(($(locale first_weekday)-1))day" +%w
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done
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en_US: 19971130 + 1 -1 = 0 #0 = sunday
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ru_RU: 19971130 + 2 -1 = 1
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fr_FR: 19971201 + 1 -1 = 1
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csb_PL: 19971201 + 2 -1 = 2
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POSIX: 19971201 + 7 -1 = 0
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*/
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{
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int wfd = (int)(intptr_t) nl_langinfo(_NL_TIME_WEEK_1STDAY);
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wfd = day_in_week(wfd % 100, (wfd / 100) % 100, wfd / (100 * 100));
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weekstart = (wfd + *nl_langinfo(_NL_TIME_FIRST_WEEKDAY) - 1) % 7;
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}
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#endif
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yflag = 0;
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while ((ch = getopt(argc, argv, "13mjsyV")) != -1)
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switch(ch) {
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case '1':
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num_months = 1; /* default */
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break;
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case '3':
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num_months = 3;
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break;
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case 's':
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weekstart = 0; /* default */
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break;
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case 'm':
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weekstart = 1;
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break;
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case 'j':
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julian = 1;
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break;
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case 'y':
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yflag = 1;
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break;
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case 'V':
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printf(_("%s from %s\n"),
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progname, PACKAGE_STRING);
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return 0;
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case '?':
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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time(&now);
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local_time = localtime(&now);
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day = month = year = 0;
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switch(argc) {
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case 3:
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if ((day = atoi(*argv++)) < 1 || day > 31)
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errx(1, _("illegal day value: use 1-%d"), 31);
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/* FALLTHROUGH */
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case 2:
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if ((month = atoi(*argv++)) < 1 || month > 12)
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errx(1, _("illegal month value: use 1-12"));
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/* FALLTHROUGH */
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case 1:
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if ((year = atoi(*argv)) < 1 || year > 9999)
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errx(1, _("illegal year value: use 1-9999"));
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if (day) {
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int dm = days_in_month[leap_year(year)][month];
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if (day > dm)
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errx(1, _("illegal day value: use 1-%d"), dm);
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day = day_in_year(day, month, year);
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} else if ((local_time->tm_year + 1900) == year) {
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day = local_time->tm_yday + 1;
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}
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if (!month)
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yflag=1;
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break;
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case 0:
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day = local_time->tm_yday + 1;
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year = local_time->tm_year + 1900;
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month = local_time->tm_mon + 1;
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break;
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default:
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usage();
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}
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headers_init();
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if (!isatty(1))
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day = 0; /* don't highlight */
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if (yflag && julian)
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j_yearly(day, year);
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else if (yflag)
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yearly(day, year);
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else if (num_months == 1)
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monthly(day, month, year);
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else if (num_months == 3)
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monthly3(day, month, year);
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exit(0);
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}
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void headers_init(void)
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{
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int i, wd;
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char *cur_dh = day_headings, *cur_j_dh = j_day_headings;
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strcpy(day_headings,"");
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strcpy(j_day_headings,"");
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#ifdef HAVE_LANGINFO_H
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# define weekday(wd) nl_langinfo(ABDAY_1+wd)
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#else
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# define weekday(wd) _time_info->abbrev_wkday[wd]
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#endif
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for(i = 0 ; i < 7 ; i++ ) {
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ssize_t space_left;
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wd = (i + weekstart) % 7;
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if (i)
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strcat(cur_dh++, " ");
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space_left = sizeof(day_headings) - (cur_dh - day_headings);
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if(space_left <= 2)
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break;
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cur_dh += center_str(weekday(wd), cur_dh, space_left, 2);
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if (i)
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strcat(cur_j_dh++, " ");
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space_left = sizeof(j_day_headings) - (cur_j_dh - j_day_headings);
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if(space_left <= 3)
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break;
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cur_j_dh += center_str(weekday(wd), cur_j_dh, space_left, 3);
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}
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#undef weekday
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for (i = 0; i < 12; i++) {
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#ifdef HAVE_LANGINFO_H
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full_month[i] = nl_langinfo(MON_1+i);
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#else
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full_month[i] = _time_info->full_month[i];
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#endif
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}
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}
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void
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do_monthly(int day, int month, int year, struct fmt_st *out) {
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int col, row, days[MAXDAYS];
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char *p, lineout[FMT_ST_CHARS];
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int width = (julian ? J_WEEK_LEN : WEEK_LEN) - 1;
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day_array(day, month, year, days);
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/*
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* %s is the month name, %d the year number.
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* you can change the order and/or add something here; eg for
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* Basque the translation should be: "%2$dko %1$s", and
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* the Vietnamese should be "%s na(m %d", etc.
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*/
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snprintf(lineout, sizeof(lineout), _("%s %d"),
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full_month[month - 1], year);
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center_str(lineout, out->s[0], SIZE(out->s[0]), width);
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snprintf(out->s[1], FMT_ST_CHARS, "%s",
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julian ? j_day_headings : day_headings);
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for (row = 0; row < 6; row++) {
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int has_hl = 0;
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for (col = 0, p = lineout; col < 7; col++) {
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int xd = days[row * 7 + col];
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if (xd != SPACE && (xd & TODAY_FLAG))
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has_hl = 1;
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p = ascii_day(p, xd);
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}
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*p = '\0';
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trim_trailing_spaces(lineout);
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snprintf(out->s[row+2], FMT_ST_CHARS, "%s", lineout);
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if (has_hl)
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Hrow = out->s[row+2];
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}
|
||
}
|
||
|
||
void
|
||
monthly(int day, int month, int year) {
|
||
int i;
|
||
struct fmt_st out;
|
||
|
||
do_monthly(day, month, year, &out);
|
||
for (i = 0; i < FMT_ST_LINES; i++) {
|
||
my_putstring(out.s[i]);
|
||
putchar('\n');
|
||
}
|
||
}
|
||
|
||
void
|
||
monthly3(int day, int month, int year) {
|
||
char lineout[FMT_ST_CHARS];
|
||
int i;
|
||
int width;
|
||
struct fmt_st out_prev;
|
||
struct fmt_st out_curm;
|
||
struct fmt_st out_next;
|
||
int prev_month, prev_year;
|
||
int next_month, next_year;
|
||
|
||
if (month == 1) {
|
||
prev_month = 12;
|
||
prev_year = year - 1;
|
||
} else {
|
||
prev_month = month - 1;
|
||
prev_year = year;
|
||
}
|
||
if (month == 12) {
|
||
next_month = 1;
|
||
next_year = year + 1;
|
||
} else {
|
||
next_month = month + 1;
|
||
next_year = year;
|
||
}
|
||
|
||
do_monthly(day, prev_month, prev_year, &out_prev);
|
||
do_monthly(day, month, year, &out_curm);
|
||
do_monthly(day, next_month, next_year, &out_next);
|
||
|
||
width = (julian ? J_WEEK_LEN : WEEK_LEN) -1;
|
||
for (i = 0; i < 2; i++)
|
||
printf("%s %s %s\n", out_prev.s[i], out_curm.s[i], out_next.s[i]);
|
||
for (i = 2; i < FMT_ST_LINES; i++) {
|
||
int w1, w2, w3;
|
||
w1 = w2 = w3 = width;
|
||
|
||
#if defined(HAVE_LIBNCURSES) || defined(HAVE_LIBNCURSESW) || defined(HAVE_LIBTERMCAP)
|
||
/* adjust width to allow for non printable characters */
|
||
w1 += (out_prev.s[i] == Hrow ? Slen : 0);
|
||
w2 += (out_curm.s[i] == Hrow ? Slen : 0);
|
||
w3 += (out_next.s[i] == Hrow ? Slen : 0);
|
||
#endif
|
||
snprintf(lineout, SIZE(lineout), "%-*s %-*s %-*s\n",
|
||
w1, out_prev.s[i],
|
||
w2, out_curm.s[i],
|
||
w3, out_next.s[i]);
|
||
|
||
my_putstring(lineout);
|
||
}
|
||
}
|
||
|
||
void
|
||
j_yearly(int day, int year) {
|
||
int col, *dp, i, month, row, which_cal;
|
||
int days[12][MAXDAYS];
|
||
char *p, lineout[80];
|
||
|
||
snprintf(lineout, sizeof(lineout), "%d", year);
|
||
center(lineout, J_WEEK_LEN*2 + J_HEAD_SEP - 1, 0);
|
||
printf("\n\n");
|
||
|
||
for (i = 0; i < 12; i++)
|
||
day_array(day, i + 1, year, days[i]);
|
||
memset(lineout, ' ', sizeof(lineout) - 1);
|
||
lineout[sizeof(lineout) - 1] = '\0';
|
||
for (month = 0; month < 12; month += 2) {
|
||
center(full_month[month], J_WEEK_LEN-1, J_HEAD_SEP+1);
|
||
center(full_month[month + 1], J_WEEK_LEN-1, 0);
|
||
printf("\n%s%*s %s\n", j_day_headings, J_HEAD_SEP, "",
|
||
j_day_headings);
|
||
for (row = 0; row < 6; row++) {
|
||
p = lineout;
|
||
for (which_cal = 0; which_cal < 2; which_cal++) {
|
||
dp = &days[month + which_cal][row * 7];
|
||
for (col = 0; col < 7; col++)
|
||
p = ascii_day(p, *dp++);
|
||
p += sprintf(p, " ");
|
||
}
|
||
*p = '\0';
|
||
trim_trailing_spaces(lineout);
|
||
my_putstring(lineout);
|
||
putchar('\n');
|
||
}
|
||
}
|
||
printf("\n");
|
||
}
|
||
|
||
void
|
||
yearly(int day, int year) {
|
||
int col, *dp, i, month, row, which_cal;
|
||
int days[12][MAXDAYS];
|
||
char *p, lineout[100];
|
||
|
||
snprintf(lineout, sizeof(lineout), "%d", year);
|
||
center(lineout, WEEK_LEN*3 + HEAD_SEP*2 - 1, 0);
|
||
printf("\n\n");
|
||
|
||
for (i = 0; i < 12; i++)
|
||
day_array(day, i + 1, year, days[i]);
|
||
memset(lineout, ' ', sizeof(lineout) - 1);
|
||
lineout[sizeof(lineout) - 1] = '\0';
|
||
for (month = 0; month < 12; month += 3) {
|
||
center(full_month[month], WEEK_LEN-1, HEAD_SEP+1);
|
||
center(full_month[month + 1], WEEK_LEN-1, HEAD_SEP+1);
|
||
center(full_month[month + 2], WEEK_LEN-1, 0);
|
||
printf("\n%s%*s %s%*s %s\n", day_headings, HEAD_SEP,
|
||
"", day_headings, HEAD_SEP, "", day_headings);
|
||
for (row = 0; row < 6; row++) {
|
||
p = lineout;
|
||
for (which_cal = 0; which_cal < 3; which_cal++) {
|
||
dp = &days[month + which_cal][row * 7];
|
||
for (col = 0; col < 7; col++)
|
||
p = ascii_day(p, *dp++);
|
||
p += sprintf(p, " ");
|
||
}
|
||
*p = '\0';
|
||
trim_trailing_spaces(lineout);
|
||
my_putstring(lineout);
|
||
putchar('\n');
|
||
}
|
||
}
|
||
putchar('\n');
|
||
}
|
||
|
||
/*
|
||
* day_array --
|
||
* Fill in an array of 42 integers with a calendar. Assume for a moment
|
||
* that you took the (maximum) 6 rows in a calendar and stretched them
|
||
* out end to end. You would have 42 numbers or spaces. This routine
|
||
* builds that array for any month from Jan. 1 through Dec. 9999.
|
||
*/
|
||
void
|
||
day_array(int day, int month, int year, int *days) {
|
||
int julday, daynum, dw, dm;
|
||
int *d_sep1752;
|
||
|
||
if (month == 9 && year == 1752) {
|
||
int sep1752_ofs = (weekstart + SEP1752_OFS) % 7;
|
||
d_sep1752 = julian ? j_sep1752 : sep1752;
|
||
memcpy(days, d_sep1752 + sep1752_ofs, MAXDAYS * sizeof(int));
|
||
for (dm=0; dm<MAXDAYS; dm++)
|
||
if (j_sep1752[dm + sep1752_ofs] == day)
|
||
days[dm] |= TODAY_FLAG;
|
||
return;
|
||
}
|
||
memcpy(days, empty, MAXDAYS * sizeof(int));
|
||
dm = days_in_month[leap_year(year)][month];
|
||
dw = (day_in_week(1, month, year) - weekstart + 7) % 7;
|
||
julday = day_in_year(1, month, year);
|
||
daynum = julian ? julday : 1;
|
||
while (dm--) {
|
||
days[dw] = daynum++;
|
||
if (julday++ == day)
|
||
days[dw] |= TODAY_FLAG;
|
||
dw++;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* day_in_year --
|
||
* return the 1 based day number within the year
|
||
*/
|
||
int
|
||
day_in_year(int day, int month, int year) {
|
||
int i, leap;
|
||
|
||
leap = leap_year(year);
|
||
for (i = 1; i < month; i++)
|
||
day += days_in_month[leap][i];
|
||
return day;
|
||
}
|
||
|
||
/*
|
||
* day_in_week
|
||
* return the 0 based day number for any date from 1 Jan. 1 to
|
||
* 31 Dec. 9999. Assumes the Gregorian reformation eliminates
|
||
* 3 Sep. 1752 through 13 Sep. 1752. Returns Thursday for all
|
||
* missing days.
|
||
*/
|
||
int
|
||
day_in_week(int day, int month, int year) {
|
||
long temp;
|
||
|
||
temp = (long)(year - 1) * 365 + leap_years_since_year_1(year - 1)
|
||
+ day_in_year(day, month, year);
|
||
if (temp < FIRST_MISSING_DAY)
|
||
return ((temp - 1 + SATURDAY) % 7);
|
||
if (temp >= (FIRST_MISSING_DAY + NUMBER_MISSING_DAYS))
|
||
return (((temp - 1 + SATURDAY) - NUMBER_MISSING_DAYS) % 7);
|
||
return (THURSDAY);
|
||
}
|
||
|
||
char *
|
||
ascii_day(char *p, int day) {
|
||
int display, val;
|
||
int highlight = 0;
|
||
static char *aday[] = {
|
||
"",
|
||
" 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",
|
||
};
|
||
|
||
if (day == SPACE) {
|
||
int len = julian ? J_DAY_LEN : DAY_LEN;
|
||
memset(p, ' ', len);
|
||
return p+len;
|
||
}
|
||
if (day & TODAY_FLAG) {
|
||
day &= ~TODAY_FLAG;
|
||
p += sprintf(p, "%s", Senter);
|
||
highlight = 1;
|
||
}
|
||
if (julian) {
|
||
if ((val = day / 100)) {
|
||
day %= 100;
|
||
*p++ = val + '0';
|
||
display = 1;
|
||
} else {
|
||
*p++ = ' ';
|
||
display = 0;
|
||
}
|
||
val = day / 10;
|
||
if (val || display)
|
||
*p++ = val + '0';
|
||
else
|
||
*p++ = ' ';
|
||
*p++ = day % 10 + '0';
|
||
} else {
|
||
*p++ = aday[day][0];
|
||
*p++ = aday[day][1];
|
||
}
|
||
if (highlight)
|
||
p += sprintf(p, "%s", Sexit);
|
||
*p++ = ' ';
|
||
return p;
|
||
}
|
||
|
||
void
|
||
trim_trailing_spaces(s)
|
||
char *s;
|
||
{
|
||
char *p;
|
||
|
||
for (p = s; *p; ++p)
|
||
continue;
|
||
while (p > s && isspace(*--p))
|
||
continue;
|
||
if (p > s)
|
||
++p;
|
||
*p = '\0';
|
||
}
|
||
|
||
#ifdef HAVE_WIDECHAR
|
||
/* replace non printable chars.
|
||
* return 1 if replacement made, 0 otherwise */
|
||
int wc_ensure_printable(wchar_t* wchars)
|
||
{
|
||
int replaced=0;
|
||
wchar_t* wc = wchars;
|
||
while (*wc) {
|
||
if (!iswprint((wint_t) *wc)) {
|
||
*wc=L'\uFFFD';
|
||
replaced=1;
|
||
}
|
||
wc++;
|
||
}
|
||
return replaced;
|
||
}
|
||
|
||
/* truncate wchar string to width cells.
|
||
* returns number of cells used. */
|
||
size_t wc_truncate(wchar_t* wchars, size_t width, size_t minchars)
|
||
{
|
||
int wc=0;
|
||
int cells=0;
|
||
while (*(wchars+wc)) {
|
||
cells = wcswidth(wchars, wc+1);
|
||
if (cells > width) {
|
||
if (wc >= minchars) {
|
||
break;
|
||
}
|
||
}
|
||
wc++;
|
||
}
|
||
wchars[wc]=L'\0';
|
||
return cells;
|
||
}
|
||
#endif
|
||
|
||
/*
|
||
* Center string, handling multibyte characters appropriately.
|
||
* In addition if the string is too large for the width it's truncated.
|
||
* The number of trailing spaces may be 1 less than the number of leading spaces.
|
||
*/
|
||
int
|
||
center_str(const char* src, char* dest, size_t dest_size, int width)
|
||
{
|
||
#ifdef HAVE_WIDECHAR
|
||
wchar_t str_wc[FMT_ST_CHARS];
|
||
#endif
|
||
char str[FMT_ST_CHARS];
|
||
const char* str_to_print=src;
|
||
int used, spaces, wc_conversion=0, wc_enabled=0;
|
||
|
||
#ifdef HAVE_WIDECHAR
|
||
if (mbstowcs(str_wc, src, SIZE(str_wc)) > 0) {
|
||
str_wc[SIZE(str_wc)-1]=L'\0';
|
||
wc_enabled=1;
|
||
wc_conversion = wc_ensure_printable(str_wc);
|
||
used = wcswidth(str_wc, SIZE(str_wc));
|
||
}
|
||
else
|
||
#endif
|
||
used = strlen(src);
|
||
|
||
if (wc_conversion || used > width) {
|
||
str_to_print=str;
|
||
if (wc_enabled) {
|
||
#ifdef HAVE_WIDECHAR
|
||
used = wc_truncate(str_wc, width, 1);
|
||
wcstombs(str, str_wc, SIZE(str));
|
||
#endif
|
||
} else {
|
||
memcpy(str, src, width);
|
||
str[width]='\0';
|
||
}
|
||
}
|
||
|
||
spaces = width - used;
|
||
spaces = ( spaces < 0 ? 0 : spaces );
|
||
|
||
return snprintf(dest, dest_size, "%*s%s%*s",
|
||
spaces / 2 + spaces % 2, "",
|
||
str_to_print,
|
||
spaces / 2, "" );
|
||
}
|
||
|
||
void
|
||
center(str, len, separate)
|
||
const char *str;
|
||
int len;
|
||
int separate;
|
||
{
|
||
char lineout[FMT_ST_CHARS];
|
||
center_str(str, lineout, SIZE(lineout), len);
|
||
fputs(lineout, stdout);
|
||
if (separate)
|
||
printf("%*s", separate, "");
|
||
}
|
||
|
||
void
|
||
usage()
|
||
{
|
||
|
||
fprintf(stderr, _("usage: cal [-13smjyV] [[[day] month] year]\n"));
|
||
exit(1);
|
||
}
|