summaryrefslogtreecommitdiff
path: root/ext/intl/dateformat/dateformat_parse.c
blob: 2507713c8a8ff976ef63906494f8db2424925e87 (plain)
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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
/*
   +----------------------------------------------------------------------+
   | PHP Version 7                                                        |
   +----------------------------------------------------------------------+
   | 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, size_t text_len, int32_t *parse_pos, zval *return_value)
{
	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, (zend_long)result);
	}
}
/* }}} */

static void add_to_localtime_arr( IntlDateFormatter_object *dfo, zval* return_value, const UCalendar *parsed_calendar, zend_long calendar_field, char* key_name)
{
	zend_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, size_t text_len, int32_t *parse_pos, zval *return_value)
{
	UCalendar      *parsed_calendar = NULL;
	UChar*  	text_utf16  = NULL;
	int32_t 	text_utf16_len = 0;
	zend_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 = (UCalendar *)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);
	add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_MINUTE, CALENDAR_MIN);
	add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_HOUR_OF_DAY, CALENDAR_HOUR);
	add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_YEAR, CALENDAR_YEAR);
	add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_DAY_OF_MONTH, CALENDAR_MDAY);
	add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_DAY_OF_WEEK, CALENDAR_WDAY);
	add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_DAY_OF_YEAR, CALENDAR_YDAY);
	add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_MONTH, CALENDAR_MON);

	/* 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);
}
/* }}} */


/* {{{ proto int IntlDateFormatter::parse( string $text_to_parse  [, int $parse_pos] )
 * Parse the string $value starting at parse_pos to a Unix timestamp -int }}}*/
/* {{{ proto int 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;
	size_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(), getThis(), "Os|z!",
		&object, IntlDateFormatter_ce_ptr, &text_to_parse, &text_len, &z_parse_pos ) == FAILURE ){
		RETURN_FALSE;
	}

	/* Fetch the object. */
	DATE_FORMAT_METHOD_FETCH_OBJECT;

	if (z_parse_pos) {
		zend_long long_parse_pos;
		ZVAL_DEREF(z_parse_pos);
		long_parse_pos = zval_get_long(z_parse_pos);
		if (ZEND_LONG_INT_OVFL(long_parse_pos)) {
			intl_error_set_code(NULL, U_ILLEGAL_ARGUMENT_ERROR);
			intl_error_set_custom_msg(NULL, "String index is out of valid range.", 0);
			RETURN_FALSE;
		}
		parse_pos = (int32_t)long_parse_pos;
		if((size_t)parse_pos > text_len) {
			RETURN_FALSE;
		}
	}
	internal_parse_to_timestamp( dfo, text_to_parse, text_len, z_parse_pos?&parse_pos:NULL, return_value);
	if(z_parse_pos) {
		zval_ptr_dtor(z_parse_pos);
		ZVAL_LONG(z_parse_pos, parse_pos);
	}
}
/* }}} */

/* {{{ proto int IntlDateFormatter::localtime( string $text_to_parse[, int $parse_pos] )
 * Parse the string $value to a localtime array  }}}*/
/* {{{ proto int 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;
	size_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(), getThis(), "Os|z!",
		&object, IntlDateFormatter_ce_ptr, &text_to_parse, &text_len, &z_parse_pos ) == FAILURE ){
		RETURN_FALSE;
	}

    /* Fetch the object. */
	DATE_FORMAT_METHOD_FETCH_OBJECT;

	if (z_parse_pos) {
		zend_long long_parse_pos;
		ZVAL_DEREF(z_parse_pos);
		long_parse_pos = zval_get_long(z_parse_pos);
		if (ZEND_LONG_INT_OVFL(long_parse_pos)) {
			intl_error_set_code(NULL, U_ILLEGAL_ARGUMENT_ERROR);
			intl_error_set_custom_msg(NULL, "String index is out of valid range.", 0);
			RETURN_FALSE;
		}
		parse_pos = (int32_t)long_parse_pos;
		if((size_t)parse_pos > text_len) {
			RETURN_FALSE;
		}
	}
	internal_parse_to_localtime( dfo, text_to_parse, text_len, z_parse_pos?&parse_pos:NULL, return_value);
	if (z_parse_pos) {
		zval_ptr_dtor(z_parse_pos);
		ZVAL_LONG(z_parse_pos, parse_pos);
	}
}
/* }}} */