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Implement Date.parse
JerryScript-DCO-1.0-Signed-off-by: László Langó llango.u-szeged@partner.samsung.com
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László Langó
parent
2bfb9b9ae4
commit
cadc8f40d4
@ -15,8 +15,11 @@
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*/
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#include "ecma-alloc.h"
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#include "ecma-builtin-helpers.h"
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#include "ecma-conversion.h"
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#include "ecma-globals.h"
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#include "ecma-helpers.h"
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#include "ecma-try-catch-macro.h"
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#ifndef CONFIG_ECMA_COMPACT_PROFILE_DISABLE_DATE_BUILTIN
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@ -37,20 +40,253 @@
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* @{
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*/
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/**
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* Helper function to try to parse a part of a date string
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*
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* @return NaN if cannot read from string, ToNumber() otherwise
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*/
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static ecma_number_t
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ecma_date_parse_date_chars (lit_utf8_iterator_t *iter, /**< iterator of the utf8 string */
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uint32_t num_of_chars) /**< number of characters to read and convert */
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{
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JERRY_ASSERT (num_of_chars > 0);
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lit_utf8_size_t copy_size = 0;
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const lit_utf8_byte_t *str_start_p = iter->buf_p + iter->buf_pos.offset;
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while (num_of_chars--)
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{
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if (lit_utf8_iterator_is_eos (iter)
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|| !lit_char_is_unicode_digit (lit_utf8_iterator_peek_next (iter)))
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{
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return ecma_number_make_nan ();
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}
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copy_size += lit_get_unicode_char_size_by_utf8_first_byte (*(iter->buf_p + iter->buf_pos.offset));
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lit_utf8_iterator_incr (iter);
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}
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return ecma_utf8_string_to_number (str_start_p, copy_size);
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} /* ecma_date_parse_date_chars */
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/**
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* The Date object's 'parse' routine
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*
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* See also:
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* ECMA-262 v5, 15.9.4.2
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* ECMA-262 v5, 15.9.1.15
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*
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* @return completion value
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* Returned value must be freed with ecma_free_completion_value.
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*/
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static ecma_completion_value_t
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ecma_builtin_date_parse (ecma_value_t this_arg, /**< this argument */
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ecma_builtin_date_parse (ecma_value_t this_arg __attr_unused___, /**< this argument */
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ecma_value_t arg) /**< string */
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{
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ECMA_BUILTIN_CP_UNIMPLEMENTED (this_arg, arg);
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ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();
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ecma_number_t *date_num_p = ecma_alloc_number ();
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*date_num_p = ecma_number_make_nan ();
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/* Date Time String fromat (ECMA-262 v5, 15.9.1.15) */
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ECMA_TRY_CATCH (date_str_value,
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ecma_op_to_string (arg),
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ret_value);
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ecma_string_t *date_str_p = ecma_get_string_from_value (date_str_value);
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lit_utf8_size_t date_str_size = ecma_string_get_size (date_str_p);
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MEM_DEFINE_LOCAL_ARRAY (date_start_p, date_str_size, lit_utf8_byte_t);
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ecma_string_to_utf8_string (date_str_p, date_start_p, (ssize_t) date_str_size);
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lit_utf8_iterator_t iter = lit_utf8_iterator_create (date_start_p, date_str_size);
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/* 1. read year */
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ecma_number_t year = ecma_date_parse_date_chars (&iter, 4);
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if (!ecma_number_is_nan (year)
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&& year >= 0)
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{
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ecma_number_t month = ECMA_NUMBER_ONE;
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ecma_number_t day = ECMA_NUMBER_ONE;
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ecma_number_t time = ECMA_NUMBER_ZERO;
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/* 2. read month if any */
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if (!lit_utf8_iterator_is_eos (&iter)
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&& lit_utf8_iterator_peek_next (&iter) == '-')
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{
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/* eat up '-' */
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lit_utf8_iterator_incr (&iter);
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month = ecma_date_parse_date_chars (&iter, 2);
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if (month > 12 || month < 1)
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{
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month = ecma_number_make_nan ();
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}
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}
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/* 3. read day if any */
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if (!lit_utf8_iterator_is_eos (&iter)
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&& lit_utf8_iterator_peek_next (&iter) == '-')
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{
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/* eat up '-' */
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lit_utf8_iterator_incr (&iter);
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day = ecma_date_parse_date_chars (&iter, 2);
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if (day < 1 || day > 31)
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{
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day = ecma_number_make_nan ();
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}
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}
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/* 4. read time if any */
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if (!lit_utf8_iterator_is_eos (&iter)
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&& lit_utf8_iterator_peek_next (&iter) == 'T')
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{
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ecma_number_t hours = ECMA_NUMBER_ZERO;
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ecma_number_t minutes = ECMA_NUMBER_ZERO;
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ecma_number_t seconds = ECMA_NUMBER_ZERO;
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ecma_number_t milliseconds = ECMA_NUMBER_ZERO;
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ecma_length_t num_of_visited_chars = lit_utf8_iterator_get_index (&iter);
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ecma_length_t date_str_len = lit_utf8_string_length (iter.buf_p, iter.buf_size) - 1;
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if ((date_str_len - num_of_visited_chars) >= 5)
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{
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/* eat up 'T' */
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lit_utf8_iterator_incr (&iter);
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/* 4.1 read hours and minutes */
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hours = ecma_date_parse_date_chars (&iter, 2);
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if (hours < 0 || hours > 24)
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{
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hours = ecma_number_make_nan ();
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}
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else if (hours == 24)
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{
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hours = ECMA_NUMBER_ZERO;
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}
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/* eat up ':' */
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lit_utf8_iterator_incr (&iter);
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minutes = ecma_date_parse_date_chars (&iter, 2);
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if (minutes < 0 || minutes > 59)
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{
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minutes = ecma_number_make_nan ();
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}
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/* 4.2 read seconds if any */
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if (!lit_utf8_iterator_is_eos (&iter) && lit_utf8_iterator_peek_next (&iter) == ':')
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{
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/* eat up ':' */
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lit_utf8_iterator_incr (&iter);
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seconds = ecma_date_parse_date_chars (&iter, 2);
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if (seconds < 0 || seconds > 59)
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{
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seconds = ecma_number_make_nan ();
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}
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/* 4.3 read milliseconds if any */
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if (!lit_utf8_iterator_is_eos (&iter) && lit_utf8_iterator_peek_next (&iter) == '.')
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{
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/* eat up '.' */
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lit_utf8_iterator_incr (&iter);
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milliseconds = ecma_date_parse_date_chars (&iter, 3);
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if (milliseconds < 0)
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{
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milliseconds = ecma_number_make_nan ();
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}
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}
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}
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time = ecma_date_make_time (hours, minutes, seconds, milliseconds);
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}
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else
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{
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time = ecma_number_make_nan ();
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}
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/* 4.4 read timezone if any */
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if (!lit_utf8_iterator_is_eos (&iter)
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&& lit_utf8_iterator_peek_next (&iter) == 'Z'
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&& !ecma_number_is_nan (time))
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{
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lit_utf8_iterator_incr (&iter);
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time = ecma_date_utc (ecma_date_make_time (hours,
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minutes,
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seconds,
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milliseconds));
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}
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else if (!lit_utf8_iterator_is_eos (&iter)
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&& (lit_utf8_iterator_peek_next (&iter) == '+'
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|| lit_utf8_iterator_peek_next (&iter) == '-'))
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{
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ecma_length_t num_of_visited_chars = lit_utf8_iterator_get_index (&iter);
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ecma_length_t date_str_len = lit_utf8_string_length (iter.buf_p, iter.buf_size) - 1;
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if ((date_str_len - num_of_visited_chars) == 5)
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{
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bool is_negative = false;
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if (lit_utf8_iterator_peek_next (&iter) == '-')
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{
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is_negative = true;
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}
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/* eat up '+/-' */
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lit_utf8_iterator_incr (&iter);
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/* read hours and minutes */
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hours = ecma_date_parse_date_chars (&iter, 2);
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if (hours < 0 || hours > 24)
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{
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hours = ecma_number_make_nan ();
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}
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else if (hours == 24)
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{
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hours = ECMA_NUMBER_ZERO;
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}
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/* eat up ':' */
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lit_utf8_iterator_incr (&iter);
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minutes = ecma_date_parse_date_chars (&iter, 2);
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if (minutes < 0 || minutes > 59)
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{
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minutes = ecma_number_make_nan ();
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}
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if (is_negative)
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{
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time += ecma_date_make_time (hours, minutes, ECMA_NUMBER_ZERO, ECMA_NUMBER_ZERO);
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}
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else
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{
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time -= ecma_date_make_time (hours, minutes, ECMA_NUMBER_ZERO, ECMA_NUMBER_ZERO);
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}
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}
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}
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}
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if (lit_utf8_iterator_is_eos (&iter))
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{
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ecma_number_t date = ecma_date_make_day (year, month - 1, day);
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*date_num_p = ecma_date_make_date (date, time);
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}
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}
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ret_value = ecma_make_normal_completion_value (ecma_make_number_value (date_num_p));
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MEM_FINALIZE_LOCAL_ARRAY (date_start_p);
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ECMA_FINALIZE (date_str_value);
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return ret_value;
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} /* ecma_builtin_date_parse */
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/**
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@ -215,7 +215,7 @@ ecma_date_in_leap_year (ecma_number_t time) /**< time value */
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return time; /* time is NaN */
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}
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return ecma_date_days_in_year (ecma_date_time_from_year (time)) - 365;
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return ecma_date_days_in_year (ecma_date_year_from_time (time)) - 365;
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} /* ecma_date_in_leap_year */
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/**
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99
tests/jerry/date-parse.js
Normal file
99
tests/jerry/date-parse.js
Normal file
@ -0,0 +1,99 @@
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// Copyright 2015 Samsung Electronics Co., Ltd.
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// Copyright 2015 University of Szeged.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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var wrongFormats = ["",
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"2",
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"20",
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"201",
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"2015-",
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"2015-01-",
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"2015-01-01-",
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"qwerty",
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"2015-01-01T",
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"2015-01-01T1:1",
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"2015-01-01T01",
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"2015-01-01T01",
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"2015-01-01T01:01F",
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"T2015",
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"2015-01-01Z",
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"2015-01-01+01:00",
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"2015-01-01T00:00+01",
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"2015-01-01T00:00+1",
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"2015-01-01T00:00-01",
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"2015-01-01T00:00.000",
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"2015-01-01T00:00:",
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"2015-01-01T00:",
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"2015-01-01T00:00:00.1",
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"2015-01-01T00:00:00.01",
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"2015-01-01T00:00+01:00Z",
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"2015/01/01",
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"2015-01-32",
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"2015--1",
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"2015-13",
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"2015-01--1",
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"-215",
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"-215-01-01",
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"2015-01-00",
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"2015-01-01T25:00",
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"2015-01-01T00:60",
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"2015-01-01T-1:00",
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"2015-01-01T00:-1",
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"2e+3"];
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for (i in wrongFormats) {
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var d = Date.parse(wrongFormats[i]);
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assert (isNaN(d));
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}
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var d;
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d = Date.parse(undefined);
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assert (isNaN(d));
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d = Date.parse({});
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assert (isNaN(d));
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d = Date.parse(2000 + 15);
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assert (d == 1420070400000);
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d = Date.parse("2015");
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assert (d == 1420070400000);
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d = Date.parse("2015-01");
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assert (d == 1420070400000);
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d = Date.parse("2015-01-01");
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assert (d == 1420070400000);
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d = Date.parse("2015-01T00:00");
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assert (d == 1420070400000);
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d = Date.parse("2015-01T00:00:00");
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assert (d == 1420070400000);
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d = Date.parse("2015-01T00:00:00.000");
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assert (d == 1420070400000);
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d = Date.parse("2015-01T24:00:00.000");
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assert (d == 1420070400000);
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d = Date.parse("2015-01T00:00:00.000+03:00");
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assert (d == 1420059600000);
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d = Date.parse("2015-01T00:00:00.000-03:00");
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assert (d == 1420081200000);
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d = Date.parse("2015-07-03T14:35:43.123+01:30");
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assert (d == 1435928743123);
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