root/intl/dateformat/dateformat_parse.c

/* [<][>][^][v][top][bottom][index][help] */

DEFINITIONS

This source file includes following definitions.
  1. internal_parse_to_timestamp
  2. add_to_localtime_arr
  3. internal_parse_to_localtime
  4. PHP_FUNCTION
  5. 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 <math.h>

#include "php_intl.h"
#include "intl_convert.h"
#include "dateformat.h"
#include "dateformat_class.h"
#include "dateformat_parse.h"
#include "dateformat_data.h"

/* {{{ 
 * Internal function which calls the udat_parse
 * param int store_error acts like a boolean 
 *      if set to 1 - store any error encountered  in the parameter parse_error  
 *      if set to 0 - no need to store any error encountered  in the parameter parse_error  
*/
static void internal_parse_to_timestamp(IntlDateFormatter_object *dfo, char* text_to_parse, int32_t text_len, int32_t *parse_pos, zval *return_value TSRMLS_DC)
{
        double  result =  0;
        UDate   timestamp   =0;
        UChar*  text_utf16  = NULL;
        int32_t text_utf16_len = 0;

        /* Convert timezone to UTF-16. */
        intl_convert_utf8_to_utf16(&text_utf16, &text_utf16_len, text_to_parse, text_len, &INTL_DATA_ERROR_CODE(dfo));
        INTL_METHOD_CHECK_STATUS(dfo, "Error converting timezone to UTF-16" );

        timestamp = udat_parse( DATE_FORMAT_OBJECT(dfo), text_utf16, text_utf16_len, parse_pos, &INTL_DATA_ERROR_CODE(dfo));
        if( text_utf16 ){
                efree(text_utf16);
        }

        INTL_METHOD_CHECK_STATUS( dfo, "Date parsing failed" );
        
        /* Since return is in  sec. */
        result = (double)timestamp / U_MILLIS_PER_SECOND;
        if(result > LONG_MAX || result < -LONG_MAX) {
                ZVAL_DOUBLE(return_value, result<0?ceil(result):floor(result));
        } else {
                ZVAL_LONG(return_value, (long)result);
        }
}
/* }}} */

static void add_to_localtime_arr( IntlDateFormatter_object *dfo, zval* return_value, UCalendar parsed_calendar, long calendar_field, char* key_name TSRMLS_DC)
{
        long calendar_field_val = ucal_get( parsed_calendar, calendar_field, &INTL_DATA_ERROR_CODE(dfo));       
        INTL_METHOD_CHECK_STATUS( dfo, "Date parsing - localtime failed : could not get a field from calendar" );

        if( strcmp(key_name, CALENDAR_YEAR )==0 ){
                /* since tm_year is years from 1900 */
                add_assoc_long( return_value, key_name,( calendar_field_val-1900) ); 
        }else if( strcmp(key_name, CALENDAR_WDAY )==0 ){
                /* since tm_wday starts from 0 whereas ICU WDAY start from 1 */
                add_assoc_long( return_value, key_name,( calendar_field_val-1) ); 
        }else{
                add_assoc_long( return_value, key_name, calendar_field_val ); 
        }
}

/* {{{
 * Internal function which calls the udat_parseCalendar
*/
static void internal_parse_to_localtime(IntlDateFormatter_object *dfo, char* text_to_parse, int32_t text_len, int32_t *parse_pos, zval *return_value TSRMLS_DC)
{
        UCalendar*      parsed_calendar = NULL;
        UChar*          text_utf16  = NULL;
        int32_t         text_utf16_len = 0;
        long            isInDST = 0;

        /* Convert timezone to UTF-16. */
        intl_convert_utf8_to_utf16(&text_utf16, &text_utf16_len, text_to_parse, text_len, &INTL_DATA_ERROR_CODE(dfo));
        INTL_METHOD_CHECK_STATUS(dfo, "Error converting timezone to UTF-16" );

        parsed_calendar = udat_getCalendar(DATE_FORMAT_OBJECT(dfo));
        udat_parseCalendar( DATE_FORMAT_OBJECT(dfo), parsed_calendar, text_utf16, text_utf16_len, parse_pos, &INTL_DATA_ERROR_CODE(dfo));
        
        if (text_utf16) {
                efree(text_utf16);
        }

        INTL_METHOD_CHECK_STATUS( dfo, "Date parsing failed" );


        array_init( return_value );
        /* Add  entries from various fields of the obtained parsed_calendar */
        add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_SECOND, CALENDAR_SEC TSRMLS_CC);
        add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_MINUTE, CALENDAR_MIN TSRMLS_CC);
        add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_HOUR_OF_DAY, CALENDAR_HOUR TSRMLS_CC);
        add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_YEAR, CALENDAR_YEAR TSRMLS_CC); 
        add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_DAY_OF_MONTH, CALENDAR_MDAY TSRMLS_CC);
        add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_DAY_OF_WEEK, CALENDAR_WDAY TSRMLS_CC);
        add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_DAY_OF_YEAR, CALENDAR_YDAY TSRMLS_CC);
        add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_MONTH, CALENDAR_MON TSRMLS_CC);

        /* Is in DST? */
        isInDST = ucal_inDaylightTime(parsed_calendar   , &INTL_DATA_ERROR_CODE(dfo));
        INTL_METHOD_CHECK_STATUS( dfo, "Date parsing - localtime failed : while checking if currently in DST." );
        add_assoc_long( return_value, CALENDAR_ISDST,(isInDST==1?1:0)); 
}
/* }}} */


/* {{{ proto integer IntlDateFormatter::parse( string $text_to_parse  [, int $parse_pos] )
 * Parse the string $value starting at parse_pos to a Unix timestamp -int }}}*/
/* {{{ proto integer datefmt_parse( IntlDateFormatter $fmt, string $text_to_parse [, int $parse_pos] )
 * Parse the string $value starting at parse_pos to a Unix timestamp -int }}}*/
PHP_FUNCTION(datefmt_parse)
{
        char*           text_to_parse = NULL;
        int32_t         text_len =0;
        zval*           z_parse_pos = NULL;
        int32_t                 parse_pos = -1;

        DATE_FORMAT_METHOD_INIT_VARS;

        /* Parse parameters. */
        if( zend_parse_method_parameters( ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Os|z!",
                &object, IntlDateFormatter_ce_ptr, &text_to_parse, &text_len, &z_parse_pos ) == FAILURE ){
                intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR, "datefmt_parse: unable to parse input params", 0 TSRMLS_CC );
                RETURN_FALSE;
        }

        /* Fetch the object. */
        DATE_FORMAT_METHOD_FETCH_OBJECT;

        if (z_parse_pos) {
                convert_to_long(z_parse_pos);
                parse_pos = (int32_t)Z_LVAL_P(z_parse_pos);
                if(parse_pos > text_len) {
                        RETURN_FALSE;
                }
        }
        internal_parse_to_timestamp( dfo, text_to_parse, text_len, z_parse_pos?&parse_pos:NULL, return_value TSRMLS_CC);
        if(z_parse_pos) {
                zval_dtor(z_parse_pos);
                ZVAL_LONG(z_parse_pos, parse_pos);
        }
}
/* }}} */

/* {{{ proto integer IntlDateFormatter::localtime( string $text_to_parse[, int $parse_pos] )
 * Parse the string $value to a localtime array  }}}*/
/* {{{ proto integer datefmt_localtime( IntlDateFormatter $fmt, string $text_to_parse[, int $parse_pos ])
 * Parse the string $value to a localtime array  }}}*/
PHP_FUNCTION(datefmt_localtime)
{
        char*           text_to_parse = NULL;
        int32_t         text_len =0;
        zval*           z_parse_pos = NULL;
        int32_t                 parse_pos = -1;

        DATE_FORMAT_METHOD_INIT_VARS;

        /* Parse parameters. */
        if( zend_parse_method_parameters( ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Os|z!",
                &object, IntlDateFormatter_ce_ptr, &text_to_parse, &text_len, &z_parse_pos ) == FAILURE ){
                intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR, "datefmt_parse_to_localtime: unable to parse input params", 0 TSRMLS_CC );
                RETURN_FALSE;
        }

    /* Fetch the object. */
        DATE_FORMAT_METHOD_FETCH_OBJECT;

        if(z_parse_pos) {
                convert_to_long(z_parse_pos);
                parse_pos = (int32_t)Z_LVAL_P(z_parse_pos);
                if(parse_pos > text_len) {
                        RETURN_FALSE;
                }
        }
        internal_parse_to_localtime( dfo, text_to_parse, text_len, z_parse_pos?&parse_pos:NULL, return_value TSRMLS_CC);
        if(z_parse_pos) {
                zval_dtor(z_parse_pos);
                ZVAL_LONG(z_parse_pos, parse_pos);
        }
}
/* }}} */


/* [<][>][^][v][top][bottom][index][help] */