root/ext/intl/dateformat/dateformat_format.c

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DEFINITIONS

This source file includes following definitions.
  1. internal_format
  2. internal_get_arr_ele
  3. internal_get_timestamp
  4. PHP_FUNCTION

/*
   +----------------------------------------------------------------------+
   | PHP Version 5                                                        |
   +----------------------------------------------------------------------+
   | 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:           |
   | http://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: Kirti Velankar <kirtig@yahoo-inc.com>                       |
   +----------------------------------------------------------------------+
*/

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <unicode/ustring.h>
#include <unicode/ucal.h>

#include "../php_intl.h"
#include "../intl_convert.h"
#include "../common/common_date.h"
#include "dateformat.h"
#include "dateformat_class.h"
#include "dateformat_format.h"
#include "dateformat_data.h"

/* {{{ 
 * Internal function which calls the udat_format
*/
static void internal_format(IntlDateFormatter_object *dfo, UDate timestamp, zval *return_value TSRMLS_DC)
{
        UChar*  formatted =  NULL;
        int32_t resultlengthneeded =0 ;
        
        resultlengthneeded=udat_format( DATE_FORMAT_OBJECT(dfo), timestamp, NULL, resultlengthneeded, NULL, &INTL_DATA_ERROR_CODE(dfo));
        if(INTL_DATA_ERROR_CODE(dfo)==U_BUFFER_OVERFLOW_ERROR)
        {
                INTL_DATA_ERROR_CODE(dfo)=U_ZERO_ERROR;
                formatted=(UChar*)emalloc(sizeof(UChar) * resultlengthneeded); 
                udat_format( DATE_FORMAT_OBJECT(dfo), timestamp, formatted, resultlengthneeded, NULL, &INTL_DATA_ERROR_CODE(dfo));
        }

        if (formatted && U_FAILURE( INTL_DATA_ERROR_CODE(dfo) ) ) {
                        efree(formatted);
        }

        INTL_METHOD_CHECK_STATUS( dfo, "Date formatting failed" );
        INTL_METHOD_RETVAL_UTF8( dfo, formatted, resultlengthneeded, 1 );

}
/* }}} */


/* {{{ 
 * Internal function which fetches an element from the passed array for the key_name passed 
*/
static int32_t internal_get_arr_ele(IntlDateFormatter_object *dfo,
                HashTable* hash_arr, char* key_name, intl_error *err TSRMLS_DC)
{
        zval    **ele_value     = NULL;
        int32_t result          = 0;
        char    *message;

        if (U_FAILURE(err->code)) {
                return result;
        }

        if (zend_hash_find(hash_arr, key_name, strlen(key_name) + 1,
                        (void **)&ele_value) == SUCCESS) {
                if(Z_TYPE_PP(ele_value) != IS_LONG) {
                        spprintf(&message, 0, "datefmt_format: parameter array contains "
                                        "a non-integer element for key '%s'", key_name);
                        intl_errors_set(err, U_ILLEGAL_ARGUMENT_ERROR, message, 1 TSRMLS_CC);
                        efree(message);
                } else {
                        if (Z_LVAL_PP(ele_value) > INT32_MAX ||
                                        Z_LVAL_PP(ele_value) < INT32_MIN) {
                                spprintf(&message, 0, "datefmt_format: value %ld is out of "
                                                "bounds for a 32-bit integer in key '%s'",
                                                Z_LVAL_PP(ele_value), key_name);
                                intl_errors_set(err, U_ILLEGAL_ARGUMENT_ERROR, message, 1 TSRMLS_CC);
                                efree(message);
                        } else {
                                result = Z_LVAL_PP(ele_value);
                        }
                }
        }

        return result;
}
/* }}} */

/* {{{ 
 * Internal function which sets UCalendar  from the passed array and retrieves timestamp
*/
static UDate internal_get_timestamp(IntlDateFormatter_object *dfo,
                HashTable *hash_arr TSRMLS_DC)
{
        int32_t         year,
                                month,
                                hour,
                                minute,
                                second,
                                mday;
        UCalendar       *pcal;
        UDate           result;
        intl_error      *err = &dfo->datef_data.error;

#define INTL_GET_ELEM(elem) \
        internal_get_arr_ele(dfo, hash_arr, (elem), err TSRMLS_CC)

        /* Fetch  values from the incoming array */
        year    = INTL_GET_ELEM(CALENDAR_YEAR) + 1900; /* tm_year is years since 1900 */
        /* Month in ICU and PHP starts from January =0 */
        month   = INTL_GET_ELEM(CALENDAR_MON);
        hour    = INTL_GET_ELEM(CALENDAR_HOUR);
        minute  = INTL_GET_ELEM(CALENDAR_MIN);
        second  = INTL_GET_ELEM(CALENDAR_SEC);
        /* For the ucal_setDateTime() function, this is the 'date'  value */
        mday    = INTL_GET_ELEM(CALENDAR_MDAY);

#undef INTL_GET_ELEM

        pcal = ucal_clone(udat_getCalendar(DATE_FORMAT_OBJECT(dfo)),
                        &INTL_DATA_ERROR_CODE(dfo));

        if (INTL_DATA_ERROR_CODE(dfo) != U_ZERO_ERROR) {
                intl_errors_set(err, INTL_DATA_ERROR_CODE(dfo), "datefmt_format: "
                                "error cloning calendar", 0 TSRMLS_CC);
                return 0;
        }

        /* set the incoming values for the calendar */
        ucal_setDateTime(pcal, year, month, mday, hour, minute, second, &INTL_DATA_ERROR_CODE(dfo));
        /* actually, ucal_setDateTime cannot fail */

        /* Fetch the timestamp from the UCalendar */
        result = ucal_getMillis(pcal, &INTL_DATA_ERROR_CODE(dfo));
        ucal_close(pcal);
        return result;
}


/* {{{ proto string IntlDateFormatter::format( [mixed]int $args or array $args )
 * Format the time value as a string. }}}*/
/* {{{ proto string datefmt_format( [mixed]int $args or array $args )
 * Format the time value as a string. }}}*/
PHP_FUNCTION(datefmt_format) 
{
        UDate           timestamp       = 0;
        HashTable       *hash_arr       = NULL;
        zval            *zarg           = NULL;

        DATE_FORMAT_METHOD_INIT_VARS;

        /* Parse parameters. */
        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Oz",
                        &object, IntlDateFormatter_ce_ptr, &zarg) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR, "datefmt_format: unable "
                                "to parse input params", 0 TSRMLS_CC );
                RETURN_FALSE;
        }

        DATE_FORMAT_METHOD_FETCH_OBJECT;

        if (Z_TYPE_P(zarg) == IS_ARRAY) {
                hash_arr = Z_ARRVAL_P(zarg);
                if (!hash_arr || zend_hash_num_elements(hash_arr) == 0) {
                        RETURN_FALSE;
                }

                timestamp = internal_get_timestamp(dfo, hash_arr TSRMLS_CC);
                INTL_METHOD_CHECK_STATUS(dfo, "datefmt_format: date formatting failed")
        } else {
                timestamp = intl_zval_to_millis(zarg, INTL_DATA_ERROR_P(dfo),
                                "datefmt_format" TSRMLS_CC);
                if (U_FAILURE(INTL_DATA_ERROR_CODE(dfo))) {
                        RETURN_FALSE;
                }
        }
        
        internal_format( dfo, timestamp, return_value TSRMLS_CC);
}

/* }}} */


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