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dis-bench / src /php /php-src /ext /calendar /calendar.c
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/*
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| https://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Shane Caraveo <shane@caraveo.com> |
| Colin Viebrock <colin@easydns.com> |
| Hartmut Holzgraefe <hholzgra@php.net> |
| Wez Furlong <wez@thebrainroom.com> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "php.h"
#include "ext/standard/info.h"
#include "php_calendar.h"
#include "sdncal.h"
#include <stdio.h>
#ifdef PHP_WIN32
/* This conflicts with a define in winnls.h, but that header is needed
to have GetACP(). */
#undef CAL_GREGORIAN
#endif
/* this order must match the conversion table below */
enum cal_name_type_t {
CAL_GREGORIAN = 0,
CAL_JULIAN,
CAL_JEWISH,
CAL_FRENCH,
CAL_NUM_CALS
};
typedef zend_long (*cal_to_jd_func_t) (int month, int day, int year);
typedef void (*cal_from_jd_func_t) (zend_long jd, int *year, int *month, int *day);
typedef char *(*cal_as_string_func_t) (int year, int month, int day);
struct cal_entry_t {
const char *name;
const char *symbol;
cal_to_jd_func_t to_jd;
cal_from_jd_func_t from_jd;
int num_months;
int max_days_in_month;
const char * const * month_name_short;
const char * const * month_name_long;
};
static const struct cal_entry_t cal_conversion_table[CAL_NUM_CALS] = {
{"Gregorian", "CAL_GREGORIAN", GregorianToSdn, SdnToGregorian, 12, 31,
MonthNameShort, MonthNameLong},
{"Julian", "CAL_JULIAN", JulianToSdn, SdnToJulian, 12, 31,
MonthNameShort, MonthNameLong},
{"Jewish", "CAL_JEWISH", JewishToSdn, SdnToJewish, 13, 30,
JewishMonthNameLeap, JewishMonthNameLeap},
{"French", "CAL_FRENCH", FrenchToSdn, SdnToFrench, 13, 30,
FrenchMonthName, FrenchMonthName}
};
#define JEWISH_MONTH_NAME(year) ((monthsPerYear[((year)-1) % 19] == 13)?JewishMonthNameLeap:JewishMonthName)
#define JEWISH_HEB_MONTH_NAME(year) ((monthsPerYear[((year)-1) % 19] == 13)?JewishMonthHebNameLeap:JewishMonthHebName)
/* For jddayofweek */
enum { CAL_DOW_DAYNO, CAL_DOW_LONG, CAL_DOW_SHORT };
/* For jdmonthname */
enum { CAL_MONTH_GREGORIAN_SHORT, CAL_MONTH_GREGORIAN_LONG,
CAL_MONTH_JULIAN_SHORT, CAL_MONTH_JULIAN_LONG, CAL_MONTH_JEWISH,
CAL_MONTH_FRENCH
};
/* For heb_number_to_chars escape sequences of אבגדהוזחטיכלמנסעפצקרשת
ISO-8859-8 Hebrew alphabet */
static const char alef_bet[25] = "0\xE0\xE1\xE2\xE3\xE4\xE5\xE6\xE7\xE8\xE9\xEB\xEC\xEE\xF0\xF1\xF2\xF4\xF6\xF7\xF8\xF9\xFA";
#define CAL_JEWISH_ADD_ALAFIM_GERESH 0x2
#define CAL_JEWISH_ADD_ALAFIM 0x4
#define CAL_JEWISH_ADD_GERESHAYIM 0x8
#include "calendar_arginfo.h"
zend_module_entry calendar_module_entry = {
STANDARD_MODULE_HEADER,
"calendar",
ext_functions,
PHP_MINIT(calendar),
NULL,
NULL,
NULL,
PHP_MINFO(calendar),
PHP_CALENDAR_VERSION,
STANDARD_MODULE_PROPERTIES,
};
#ifdef COMPILE_DL_CALENDAR
ZEND_GET_MODULE(calendar)
#endif
PHP_MINIT_FUNCTION(calendar)
{
register_calendar_symbols(module_number);
return SUCCESS;
}
PHP_MINFO_FUNCTION(calendar)
{
php_info_print_table_start();
php_info_print_table_row(2, "Calendar support", "enabled");
php_info_print_table_end();
}
static void _php_cal_info(int cal, zval *ret)
{
zval months, smonths;
int i;
const struct cal_entry_t *calendar;
calendar = &cal_conversion_table[cal];
array_init(ret);
array_init_size(&months, calendar->num_months + 1);
array_init_size(&smonths, calendar->num_months + 1);
zend_hash_real_init_packed(Z_ARRVAL(months));
zend_hash_real_init_packed(Z_ARRVAL(smonths));
for (i = 1; i <= calendar->num_months; i++) {
add_index_string(&months, i, calendar->month_name_long[i]);
add_index_string(&smonths, i, calendar->month_name_short[i]);
}
add_assoc_zval(ret, "months", &months);
add_assoc_zval(ret, "abbrevmonths", &smonths);
add_assoc_long(ret, "maxdaysinmonth", calendar->max_days_in_month);
add_assoc_string(ret, "calname", calendar->name);
add_assoc_string(ret, "calsymbol", calendar->symbol);
}
/* {{{ Returns information about a particular calendar */
PHP_FUNCTION(cal_info)
{
zend_long cal = -1;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|l", &cal) == FAILURE) {
RETURN_THROWS();
}
if (cal == -1) {
int i;
zval val;
array_init_size(return_value, CAL_NUM_CALS);
zend_hash_real_init_packed(Z_ARRVAL_P(return_value));
for (i = 0; i < CAL_NUM_CALS; i++) {
_php_cal_info(i, &val);
add_index_zval(return_value, i, &val);
}
return;
}
if (cal < 0 || cal >= CAL_NUM_CALS) {
zend_argument_value_error(1, "must be a valid calendar ID");
RETURN_THROWS();
}
_php_cal_info(cal, return_value);
}
/* }}} */
/* {{{ Returns the number of days in a month for a given year and calendar */
PHP_FUNCTION(cal_days_in_month)
{
zend_long cal, month, year;
const struct cal_entry_t *calendar;
zend_long sdn_start, sdn_next;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "lll", &cal, &month, &year) == FAILURE) {
RETURN_THROWS();
}
if (cal < 0 || cal >= CAL_NUM_CALS) {
zend_argument_value_error(1, "must be a valid calendar ID");
RETURN_THROWS();
}
calendar = &cal_conversion_table[cal];
sdn_start = calendar->to_jd(year, month, 1);
if (sdn_start == 0) {
zend_value_error("Invalid date");
RETURN_THROWS();
}
sdn_next = calendar->to_jd(year, 1 + month, 1);
if (sdn_next == 0) {
/* If the next month is invalid, then we need to try the first month of
* the next year, bearing in mind that the next year after 1 BCE is
* actually 1 AD and not 0. */
if (year == -1) {
sdn_next = calendar->to_jd(1, 1, 1);
}
else {
sdn_next = calendar->to_jd(year + 1, 1, 1);
if (cal == CAL_FRENCH && sdn_next == 0) {
/* The French calendar ends on 0014-13-05. */
sdn_next = 2380953;
}
}
}
RETURN_LONG(sdn_next - sdn_start);
}
/* }}} */
/* {{{ Converts from a supported calendar to Julian Day Count */
PHP_FUNCTION(cal_to_jd)
{
zend_long cal, month, day, year;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "llll", &cal, &month, &day, &year) != SUCCESS) {
RETURN_THROWS();
}
if (cal < 0 || cal >= CAL_NUM_CALS) {
zend_argument_value_error(1, "must be a valid calendar ID");
RETURN_THROWS();
}
RETURN_LONG(cal_conversion_table[cal].to_jd(year, month, day));
}
/* }}} */
/* {{{ Converts from Julian Day Count to a supported calendar and return extended information */
PHP_FUNCTION(cal_from_jd)
{
zend_long jd, cal;
int month, day, year, dow;
const struct cal_entry_t *calendar;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "ll", &jd, &cal) == FAILURE) {
RETURN_THROWS();
}
if (cal < 0 || cal >= CAL_NUM_CALS) {
zend_argument_value_error(2, "must be a valid calendar ID");
RETURN_THROWS();
}
calendar = &cal_conversion_table[cal];
array_init(return_value);
calendar->from_jd(jd, &year, &month, &day);
add_assoc_str(return_value, "date",
zend_strpprintf(0, "%i/%i/%i", month, day, year));
add_assoc_long(return_value, "month", month);
add_assoc_long(return_value, "day", day);
add_assoc_long(return_value, "year", year);
/* day of week */
if (cal != CAL_JEWISH || year > 0) {
dow = DayOfWeek(jd);
add_assoc_long(return_value, "dow", dow);
add_assoc_string(return_value, "abbrevdayname", DayNameShort[dow]);
add_assoc_string(return_value, "dayname", DayNameLong[dow]);
} else {
add_assoc_null(return_value, "dow");
add_assoc_string(return_value, "abbrevdayname", "");
add_assoc_string(return_value, "dayname", "");
}
/* month name */
if(cal == CAL_JEWISH) {
/* special case for Jewish calendar */
add_assoc_string(return_value, "abbrevmonth", (year > 0 ? JEWISH_MONTH_NAME(year)[month] : ""));
add_assoc_string(return_value, "monthname", (year > 0 ? JEWISH_MONTH_NAME(year)[month] : ""));
} else {
add_assoc_string(return_value, "abbrevmonth", calendar->month_name_short[month]);
add_assoc_string(return_value, "monthname", calendar->month_name_long[month]);
}
}
/* }}} */
/* {{{ Converts a julian day count to a gregorian calendar date */
PHP_FUNCTION(jdtogregorian)
{
zend_long julday;
int year, month, day;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &julday) == FAILURE) {
RETURN_THROWS();
}
SdnToGregorian(julday, &year, &month, &day);
RETURN_NEW_STR(zend_strpprintf(0, "%i/%i/%i", month, day, year));
}
/* }}} */
/* {{{ Converts a gregorian calendar date to julian day count */
PHP_FUNCTION(gregoriantojd)
{
zend_long year, month, day;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "lll", &month, &day, &year) == FAILURE) {
RETURN_THROWS();
}
RETURN_LONG(GregorianToSdn(year, month, day));
}
/* }}} */
/* {{{ Convert a julian day count to a julian calendar date */
PHP_FUNCTION(jdtojulian)
{
zend_long julday;
int year, month, day;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &julday) == FAILURE) {
RETURN_THROWS();
}
SdnToJulian(julday, &year, &month, &day);
RETURN_NEW_STR(zend_strpprintf(0, "%i/%i/%i", month, day, year));
}
/* }}} */
/* {{{ Converts a julian calendar date to julian day count */
PHP_FUNCTION(juliantojd)
{
zend_long year, month, day;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "lll", &month, &day, &year) == FAILURE) {
RETURN_THROWS();
}
RETURN_LONG(JulianToSdn(year, month, day));
}
/* }}} */
/* {{{ heb_number_to_chars*/
/*
caution: the Hebrew format produces non-unique result.
for example both: year '5' and year '5000' produce 'ה'.
use the numeric one for calculations.
*/
static char *heb_number_to_chars(int n, int fl, char **ret)
{
char *p, old[18], *endofalafim;
p = endofalafim = old;
/*
prevents the option breaking the jewish beliefs, and some other
critical resources ;)
*/
if (n > 9999 || n < 1) {
*ret = NULL;
return NULL;
}
/* alafim (thousands) case */
if (n / 1000) {
*p = alef_bet[n / 1000];
p++;
if (CAL_JEWISH_ADD_ALAFIM_GERESH & fl) {
*p = '\'';
p++;
}
if (CAL_JEWISH_ADD_ALAFIM & fl) {
/* Escape sequences of Hebrew characters in ISO-8859-8: אלפים */
strcpy(p, " \xE0\xEC\xF4\xE9\xED ");
p += 7;
}
endofalafim = p;
n = n % 1000;
}
/* tav-tav (tav=400) case */
while (n >= 400) {
*p = alef_bet[22];
p++;
n -= 400;
}
/* meot (hundreds) case */
if (n >= 100) {
*p = alef_bet[18 + n / 100];
p++;
n = n % 100;
}
/* tet-vav & tet-zain case (special case for 15 and 16) */
if (n == 15 || n == 16) {
*p = alef_bet[9];
p++;
*p = alef_bet[n - 9];
p++;
} else {
/* asarot (tens) case */
if (n >= 10) {
*p = alef_bet[9 + n / 10];
p++;
n = n % 10;
}
/* yehidot (ones) case */
if (n > 0) {
*p = alef_bet[n];
p++;
}
}
if (CAL_JEWISH_ADD_GERESHAYIM & fl) {
switch (p - endofalafim) {
case 0:
break;
case 1:
*p = '\'';
p++;
break;
default:
*(p) = *(p - 1);
*(p - 1) = '"';
p++;
}
}
*p = '\0';
*ret = estrndup(old, (p - old) + 1);
p = *ret;
return p;
}
/* }}} */
/* {{{ Converts a julian day count to a jewish calendar date */
PHP_FUNCTION(jdtojewish)
{
zend_long julday, fl = 0;
bool heb = 0;
int year, month, day;
char *dayp, *yearp;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l|bl", &julday, &heb, &fl) == FAILURE) {
RETURN_THROWS();
}
SdnToJewish(julday, &year, &month, &day);
if (!heb) {
RETURN_NEW_STR(zend_strpprintf(0, "%i/%i/%i", month, day, year));
} else {
if (year <= 0 || year > 9999) {
zend_value_error("Year out of range (0-9999)");
RETURN_THROWS();
}
RETVAL_NEW_STR(zend_strpprintf(0, "%s %s %s", heb_number_to_chars(day, fl, &dayp), JEWISH_HEB_MONTH_NAME(year)[month], heb_number_to_chars(year, fl, &yearp)));
if (dayp) {
efree(dayp);
}
if (yearp) {
efree(yearp);
}
}
}
/* }}} */
/* {{{ Converts a jewish calendar date to a julian day count */
PHP_FUNCTION(jewishtojd)
{
zend_long year, month, day;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "lll", &month, &day, &year) == FAILURE) {
RETURN_THROWS();
}
RETURN_LONG(JewishToSdn(year, month, day));
}
/* }}} */
/* {{{ Converts a julian day count to a french republic calendar date */
PHP_FUNCTION(jdtofrench)
{
zend_long julday;
int year, month, day;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &julday) == FAILURE) {
RETURN_THROWS();
}
SdnToFrench(julday, &year, &month, &day);
RETURN_NEW_STR(zend_strpprintf(0, "%i/%i/%i", month, day, year));
}
/* }}} */
/* {{{ Converts a french republic calendar date to julian day count */
PHP_FUNCTION(frenchtojd)
{
zend_long year, month, day;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "lll", &month, &day, &year) == FAILURE) {
RETURN_THROWS();
}
RETURN_LONG(FrenchToSdn(year, month, day));
}
/* }}} */
/* {{{ Returns name or number of day of week from julian day count */
PHP_FUNCTION(jddayofweek)
{
zend_long julday, mode = CAL_DOW_DAYNO;
int day;
const char *daynamel, *daynames;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l|l", &julday, &mode) == FAILURE) {
RETURN_THROWS();
}
day = DayOfWeek(julday);
daynamel = DayNameLong[day];
daynames = DayNameShort[day];
switch (mode) {
case CAL_DOW_LONG:
RETURN_STRING(daynamel);
break;
case CAL_DOW_SHORT:
RETURN_STRING(daynames);
break;
case CAL_DOW_DAYNO:
default:
RETURN_LONG(day);
break;
}
}
/* }}} */
/* {{{ Returns name of month for julian day count */
PHP_FUNCTION(jdmonthname)
{
zend_long julday, mode;
const char *monthname = NULL;
int month, day, year;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "ll", &julday, &mode) == FAILURE) {
RETURN_THROWS();
}
switch (mode) {
case CAL_MONTH_GREGORIAN_LONG: /* gregorian or julian month */
SdnToGregorian(julday, &year, &month, &day);
monthname = MonthNameLong[month];
break;
case CAL_MONTH_JULIAN_SHORT: /* gregorian or julian month */
SdnToJulian(julday, &year, &month, &day);
monthname = MonthNameShort[month];
break;
case CAL_MONTH_JULIAN_LONG: /* gregorian or julian month */
SdnToJulian(julday, &year, &month, &day);
monthname = MonthNameLong[month];
break;
case CAL_MONTH_JEWISH: /* jewish month */
SdnToJewish(julday, &year, &month, &day);
monthname = (year > 0 ? JEWISH_MONTH_NAME(year)[month] : "");
break;
case CAL_MONTH_FRENCH: /* french month */
SdnToFrench(julday, &year, &month, &day);
monthname = FrenchMonthName[month];
break;
default: /* default gregorian */
case CAL_MONTH_GREGORIAN_SHORT: /* gregorian or julian month */
SdnToGregorian(julday, &year, &month, &day);
monthname = MonthNameShort[month];
break;
}
RETURN_STRING(monthname);
}
/* }}} */