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