/* * 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 * - added Native Language Support * * 2000-09-01 Michael Charles Pruznick * 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 * 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 #include #include #include #include #include #include #include #include "nls.h" #if defined(HAVE_NCURSES) #ifdef HAVE_NCURSES_H #include #elif defined(HAVE_NCURSES_NCURSES_H) #include #endif #include /* include after */ 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 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_NCURSES) */ 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 #else # include /* libc4 only */ #endif #include "widechar.h" #define SIZE(a) (sizeof(a)/sizeof((a)[0])) /* 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 43 /* max 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}, }; int sep1752[MAXDAYS] = { 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 }, j_sep1752[MAXDAYS] = { 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 }, 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, 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]; /* week1stday = 1 => " M Tu W Th F S S " */ char j_day_headings[J_WEEK_LEN*6+1]; /* week1stday = 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 (default), 1 => monday */ int week1stday=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_NCURSES) || 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 #if 0 /* setting week1stday is against man page */ /* * What *is* the first day of the week? Note that glibc does not * provide any information today, it (almost) always answers Monday. * Sunday is the Jewish and Christian tradition. * Sometimes an answer is built into the language: * German calls Wednesday "Mittwoch", so starts at Sunday. * Portuguese calls Monday "segunda-feira", so starts at Sunday. * Russian calls Friday "pyatnitsa", so starts at Monday. * ISO 8601 decided to start at Monday. * * The traditional Unix cal utility starts at Sunday. * We start at Sunday and have an option -m for starting at Monday. * * At some future time this may become -s for Sunday, -m for Monday, * no option for glibc-determined locale-dependent version. */ #ifdef HAVE_LANGINFO_H week1stday = (int)(nl_langinfo(_NL_TIME_FIRST_WEEKDAY))[0]; #endif #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': week1stday = 0; /* default */ break; case 'm': week1stday = 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; day = month = year = 0; switch(argc) { case 3: if ((day = atoi(*argv++)) < 1 || month > 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); } if (!month) yflag=1; break; case 0: time(&now); local_time = localtime(&now); 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 + week1stday) % 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], 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_NCURSES) || 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) { d_sep1752 = julian ? j_sep1752 : sep1752; memcpy(days, d_sep1752 + week1stday, MAXDAYS * sizeof(int)); for (dm=0; dm= (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); }