03017be5bd
This is an editorial change in the Temporal spec. See: https://github.com/tc39/proposal-temporal/commit/f85f953
1764 lines
55 KiB
C++
1764 lines
55 KiB
C++
/*
|
||
* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
|
||
*
|
||
* SPDX-License-Identifier: BSD-2-Clause
|
||
*/
|
||
|
||
#include <AK/CharacterTypes.h>
|
||
#include <LibJS/Runtime/Temporal/ISO8601.h>
|
||
|
||
namespace JS::Temporal {
|
||
|
||
namespace Detail {
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DecimalDigits
|
||
bool ISO8601Parser::parse_decimal_digits()
|
||
{
|
||
// DecimalDigits[Sep] ::
|
||
// DecimalDigit
|
||
// DecimalDigits[?Sep] DecimalDigit
|
||
// [+Sep] DecimalDigits[+Sep] NumericLiteralSeparator DecimalDigit
|
||
// NOTE: Temporal exclusively uses the variant without a separator ([~Sep])
|
||
if (!parse_decimal_digit())
|
||
return false;
|
||
while (parse_decimal_digit())
|
||
;
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DecimalDigit
|
||
bool ISO8601Parser::parse_decimal_digit()
|
||
{
|
||
// DecimalDigit : one of
|
||
// 0 1 2 3 4 5 6 7 8 9
|
||
if (m_state.lexer.next_is(is_ascii_digit)) {
|
||
m_state.lexer.consume();
|
||
return true;
|
||
}
|
||
return false;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-NonZeroDigit
|
||
bool ISO8601Parser::parse_non_zero_digit()
|
||
{
|
||
// NonZeroDigit : one of
|
||
// 1 2 3 4 5 6 7 8 9
|
||
if (m_state.lexer.next_is(is_ascii_digit) && !m_state.lexer.next_is('0')) {
|
||
m_state.lexer.consume();
|
||
return true;
|
||
}
|
||
return false;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-ASCIISign
|
||
bool ISO8601Parser::parse_ascii_sign()
|
||
{
|
||
// ASCIISign : one of
|
||
// + -
|
||
return m_state.lexer.consume_specific('+')
|
||
|| m_state.lexer.consume_specific('-');
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-Sign
|
||
bool ISO8601Parser::parse_sign()
|
||
{
|
||
// Sign :
|
||
// ASCIISign
|
||
// U+2212
|
||
StateTransaction transaction { *this };
|
||
auto success = parse_ascii_sign()
|
||
|| m_state.lexer.consume_specific("\xE2\x88\x92"sv);
|
||
if (!success)
|
||
return false;
|
||
m_state.parse_result.sign = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-UnpaddedHour
|
||
bool ISO8601Parser::parse_unpadded_hour()
|
||
{
|
||
// UnpaddedHour :
|
||
// DecimalDigit
|
||
// 1 DecimalDigit
|
||
// 20
|
||
// 21
|
||
// 22
|
||
// 23
|
||
StateTransaction transaction { *this };
|
||
auto success = m_state.lexer.consume_specific("20"sv)
|
||
|| m_state.lexer.consume_specific("21"sv)
|
||
|| m_state.lexer.consume_specific("22"sv)
|
||
|| m_state.lexer.consume_specific("23"sv);
|
||
if (!success) {
|
||
// This could be either of the first two productions.
|
||
if (m_state.lexer.consume_specific('1'))
|
||
(void)parse_decimal_digit();
|
||
else if (!parse_decimal_digit())
|
||
return false;
|
||
}
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-Hour
|
||
bool ISO8601Parser::parse_hour()
|
||
{
|
||
// Hour :
|
||
// 0 DecimalDigit
|
||
// 1 DecimalDigit
|
||
// 20
|
||
// 21
|
||
// 22
|
||
// 23
|
||
StateTransaction transaction { *this };
|
||
if (m_state.lexer.consume_specific('0') || m_state.lexer.consume_specific('1')) {
|
||
if (!parse_decimal_digit())
|
||
return false;
|
||
} else {
|
||
auto success = m_state.lexer.consume_specific("20"sv)
|
||
|| m_state.lexer.consume_specific("21"sv)
|
||
|| m_state.lexer.consume_specific("22"sv)
|
||
|| m_state.lexer.consume_specific("23"sv);
|
||
if (!success)
|
||
return false;
|
||
}
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-MinuteSecond
|
||
bool ISO8601Parser::parse_minute_second()
|
||
{
|
||
// MinuteSecond :
|
||
// 0 DecimalDigit
|
||
// 1 DecimalDigit
|
||
// 2 DecimalDigit
|
||
// 3 DecimalDigit
|
||
// 4 DecimalDigit
|
||
// 5 DecimalDigit
|
||
StateTransaction transaction { *this };
|
||
auto success = m_state.lexer.consume_specific('0')
|
||
|| m_state.lexer.consume_specific('1')
|
||
|| m_state.lexer.consume_specific('2')
|
||
|| m_state.lexer.consume_specific('3')
|
||
|| m_state.lexer.consume_specific('4')
|
||
|| m_state.lexer.consume_specific('5');
|
||
if (!success)
|
||
return false;
|
||
if (!parse_decimal_digit())
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DecimalSeparator
|
||
bool ISO8601Parser::parse_decimal_separator()
|
||
{
|
||
// DecimalSeparator : one of
|
||
// . ,
|
||
return m_state.lexer.consume_specific('.')
|
||
|| m_state.lexer.consume_specific(',');
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DaysDesignator
|
||
bool ISO8601Parser::parse_days_designator()
|
||
{
|
||
// DaysDesignator : one of
|
||
// D d
|
||
return m_state.lexer.consume_specific('D')
|
||
|| m_state.lexer.consume_specific('d');
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-HoursDesignator
|
||
bool ISO8601Parser::parse_hours_designator()
|
||
{
|
||
// HoursDesignator : one of
|
||
// H h
|
||
return m_state.lexer.consume_specific('H')
|
||
|| m_state.lexer.consume_specific('h');
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-MinutesDesignator
|
||
bool ISO8601Parser::parse_minutes_designator()
|
||
{
|
||
// MinutesDesignator : one of
|
||
// M m
|
||
return m_state.lexer.consume_specific('M')
|
||
|| m_state.lexer.consume_specific('m');
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-MonthsDesignator
|
||
bool ISO8601Parser::parse_months_designator()
|
||
{
|
||
// MonthsDesignator : one of
|
||
// M m
|
||
return m_state.lexer.consume_specific('M')
|
||
|| m_state.lexer.consume_specific('m');
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationDesignator
|
||
bool ISO8601Parser::parse_duration_designator()
|
||
{
|
||
// DurationDesignator : one of
|
||
// P p
|
||
return m_state.lexer.consume_specific('P')
|
||
|| m_state.lexer.consume_specific('p');
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-SecondsDesignator
|
||
bool ISO8601Parser::parse_seconds_designator()
|
||
{
|
||
// SecondsDesignator : one of
|
||
// S s
|
||
return m_state.lexer.consume_specific('S')
|
||
|| m_state.lexer.consume_specific('s');
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DateTimeSeparator
|
||
bool ISO8601Parser::parse_date_time_separator()
|
||
{
|
||
// DateTimeSeparator :
|
||
// <SP>
|
||
// T
|
||
// t
|
||
return m_state.lexer.consume_specific(' ')
|
||
|| m_state.lexer.consume_specific('T')
|
||
|| m_state.lexer.consume_specific('t');
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeDesignator
|
||
bool ISO8601Parser::parse_time_designator()
|
||
{
|
||
// TimeDesignator : one of
|
||
// T t
|
||
return m_state.lexer.consume_specific('T')
|
||
|| m_state.lexer.consume_specific('t');
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-WeeksDesignator
|
||
bool ISO8601Parser::parse_weeks_designator()
|
||
{
|
||
// WeeksDesignator : one of
|
||
// W w
|
||
return m_state.lexer.consume_specific('W')
|
||
|| m_state.lexer.consume_specific('w');
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-YearsDesignator
|
||
bool ISO8601Parser::parse_years_designator()
|
||
{
|
||
// YearsDesignator : one of
|
||
// Y y
|
||
return m_state.lexer.consume_specific('Y')
|
||
|| m_state.lexer.consume_specific('y');
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-UTCDesignator
|
||
bool ISO8601Parser::parse_utc_designator()
|
||
{
|
||
// UTCDesignator : one of
|
||
// Z z
|
||
StateTransaction transaction { *this };
|
||
auto success = m_state.lexer.consume_specific('Z')
|
||
|| m_state.lexer.consume_specific('z');
|
||
if (!success)
|
||
return false;
|
||
m_state.parse_result.utc_designator = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DateYear
|
||
bool ISO8601Parser::parse_date_year()
|
||
{
|
||
// DateFourDigitYear :
|
||
// DecimalDigit DecimalDigit DecimalDigit DecimalDigit
|
||
// DateExtendedYear :
|
||
// Sign DecimalDigit DecimalDigit DecimalDigit DecimalDigit DecimalDigit DecimalDigit
|
||
// DateYear :
|
||
// DateFourDigitYear
|
||
// DateExtendedYear
|
||
StateTransaction transaction { *this };
|
||
if (parse_sign()) {
|
||
for (size_t i = 0; i < 6; ++i) {
|
||
if (!parse_decimal_digit())
|
||
return false;
|
||
}
|
||
} else {
|
||
for (size_t i = 0; i < 4; ++i) {
|
||
if (!parse_decimal_digit())
|
||
return false;
|
||
}
|
||
}
|
||
// It is a Syntax Error if DateExtendedYear is "-000000" or "−000000" (U+2212 MINUS SIGN followed by 000000).
|
||
if (transaction.parsed_string_view().is_one_of("-000000"sv, "−000000"sv))
|
||
return false;
|
||
m_state.parse_result.date_year = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DateMonth
|
||
bool ISO8601Parser::parse_date_month()
|
||
{
|
||
// DateMonth :
|
||
// 0 NonZeroDigit
|
||
// 10
|
||
// 11
|
||
// 12
|
||
StateTransaction transaction { *this };
|
||
if (m_state.lexer.consume_specific('0')) {
|
||
if (!parse_non_zero_digit())
|
||
return false;
|
||
} else {
|
||
auto success = m_state.lexer.consume_specific("10"sv)
|
||
|| m_state.lexer.consume_specific("11"sv)
|
||
|| m_state.lexer.consume_specific("12"sv);
|
||
if (!success)
|
||
return false;
|
||
}
|
||
m_state.parse_result.date_month = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DateDay
|
||
bool ISO8601Parser::parse_date_day()
|
||
{
|
||
// DateDay :
|
||
// 0 NonZeroDigit
|
||
// 1 DecimalDigit
|
||
// 2 DecimalDigit
|
||
// 30
|
||
// 31
|
||
StateTransaction transaction { *this };
|
||
if (m_state.lexer.consume_specific('0')) {
|
||
if (!parse_non_zero_digit())
|
||
return false;
|
||
} else if (m_state.lexer.consume_specific('1') || m_state.lexer.consume_specific('2')) {
|
||
if (!parse_decimal_digit())
|
||
return false;
|
||
} else {
|
||
auto success = m_state.lexer.consume_specific("30"sv)
|
||
|| m_state.lexer.consume_specific("31"sv);
|
||
if (!success)
|
||
return false;
|
||
}
|
||
m_state.parse_result.date_day = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DateSpecYearMonth
|
||
bool ISO8601Parser::parse_date_spec_year_month()
|
||
{
|
||
// DateSpecYearMonth :
|
||
// DateYear -[opt] DateMonth
|
||
StateTransaction transaction { *this };
|
||
if (!parse_date_year())
|
||
return false;
|
||
m_state.lexer.consume_specific('-');
|
||
if (!parse_date_month())
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DateSpecMonthDay
|
||
bool ISO8601Parser::parse_date_spec_month_day()
|
||
{
|
||
// TwoDashes :
|
||
// --
|
||
// DateSpecMonthDay :
|
||
// TwoDashes[opt] DateMonth -[opt] DateDay
|
||
StateTransaction transaction { *this };
|
||
m_state.lexer.consume_specific("--"sv);
|
||
if (!parse_date_month())
|
||
return false;
|
||
m_state.lexer.consume_specific('-');
|
||
if (!parse_date_day())
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-Date
|
||
bool ISO8601Parser::parse_date()
|
||
{
|
||
// Date :
|
||
// DateYear - DateMonth - DateDay
|
||
// DateYear DateMonth DateDay
|
||
StateTransaction transaction { *this };
|
||
if (!parse_date_year())
|
||
return false;
|
||
auto with_dashes = m_state.lexer.consume_specific('-');
|
||
if (!parse_date_month())
|
||
return false;
|
||
if (with_dashes && !m_state.lexer.consume_specific('-'))
|
||
return false;
|
||
if (!parse_date_day())
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeHour
|
||
bool ISO8601Parser::parse_time_hour()
|
||
{
|
||
// TimeHour :
|
||
// Hour
|
||
StateTransaction transaction { *this };
|
||
if (!parse_hour())
|
||
return false;
|
||
m_state.parse_result.time_hour = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeMinute
|
||
bool ISO8601Parser::parse_time_minute()
|
||
{
|
||
// TimeMinute :
|
||
// MinuteSecond
|
||
StateTransaction transaction { *this };
|
||
if (!parse_minute_second())
|
||
return false;
|
||
m_state.parse_result.time_minute = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeSecond
|
||
bool ISO8601Parser::parse_time_second()
|
||
{
|
||
// TimeSecond :
|
||
// MinuteSecond
|
||
// 60
|
||
StateTransaction transaction { *this };
|
||
auto success = parse_minute_second()
|
||
|| m_state.lexer.consume_specific("60"sv);
|
||
if (!success)
|
||
return false;
|
||
m_state.parse_result.time_second = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeHourNotValidMonth
|
||
bool ISO8601Parser::parse_time_hour_not_valid_month()
|
||
{
|
||
// TimeHourNotValidMonth : one of
|
||
// 00 13 14 15 16 17 18 19 20 21 23
|
||
StateTransaction transaction { *this };
|
||
auto success = m_state.lexer.consume_specific("00"sv)
|
||
|| m_state.lexer.consume_specific("13"sv)
|
||
|| m_state.lexer.consume_specific("14"sv)
|
||
|| m_state.lexer.consume_specific("15"sv)
|
||
|| m_state.lexer.consume_specific("16"sv)
|
||
|| m_state.lexer.consume_specific("17"sv)
|
||
|| m_state.lexer.consume_specific("18"sv)
|
||
|| m_state.lexer.consume_specific("19"sv)
|
||
|| m_state.lexer.consume_specific("20"sv)
|
||
|| m_state.lexer.consume_specific("21"sv)
|
||
|| m_state.lexer.consume_specific("22"sv)
|
||
|| m_state.lexer.consume_specific("23"sv);
|
||
if (!success)
|
||
return false;
|
||
m_state.parse_result.time_hour_not_valid_month = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeHourNotThirtyOneDayMonth
|
||
bool ISO8601Parser::parse_time_hour_not_thirty_one_day_month()
|
||
{
|
||
// TimeHourNotThirtyOneDayMonth : one of
|
||
// 02 04 06 09 11
|
||
StateTransaction transaction { *this };
|
||
auto success = m_state.lexer.consume_specific("02"sv)
|
||
|| m_state.lexer.consume_specific("04"sv)
|
||
|| m_state.lexer.consume_specific("06"sv)
|
||
|| m_state.lexer.consume_specific("09"sv)
|
||
|| m_state.lexer.consume_specific("11"sv);
|
||
if (!success)
|
||
return false;
|
||
m_state.parse_result.time_hour_not_thirty_one_day_month = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeHourTwoOnly
|
||
bool ISO8601Parser::parse_time_hour_two_only()
|
||
{
|
||
// TimeHourTwoOnly :
|
||
// 02
|
||
StateTransaction transaction { *this };
|
||
if (!m_state.lexer.consume_specific("02"sv))
|
||
return false;
|
||
m_state.parse_result.time_hour_two_only = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeMinuteNotValidDay
|
||
bool ISO8601Parser::parse_time_minute_not_valid_day()
|
||
{
|
||
// TimeMinuteNotValidDay :
|
||
// 00
|
||
// 32
|
||
// 33
|
||
// 34
|
||
// 35
|
||
// 36
|
||
// 37
|
||
// 38
|
||
// 39
|
||
// 4 DecimalDigit
|
||
// 5 DecimalDigit
|
||
// 60
|
||
StateTransaction transaction { *this };
|
||
if (m_state.lexer.consume_specific('4') || m_state.lexer.consume_specific('5')) {
|
||
if (!parse_decimal_digit())
|
||
return false;
|
||
} else {
|
||
auto success = m_state.lexer.consume_specific("00"sv)
|
||
|| m_state.lexer.consume_specific("32"sv)
|
||
|| m_state.lexer.consume_specific("33"sv)
|
||
|| m_state.lexer.consume_specific("34"sv)
|
||
|| m_state.lexer.consume_specific("35"sv)
|
||
|| m_state.lexer.consume_specific("36"sv)
|
||
|| m_state.lexer.consume_specific("37"sv)
|
||
|| m_state.lexer.consume_specific("38"sv)
|
||
|| m_state.lexer.consume_specific("39"sv)
|
||
|| m_state.lexer.consume_specific("60"sv);
|
||
if (!success)
|
||
return false;
|
||
}
|
||
m_state.parse_result.time_minute_not_valid_day = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeMinuteThirtyOnly
|
||
bool ISO8601Parser::parse_time_minute_thirty_only()
|
||
{
|
||
// TimeMinuteThirtyOnly :
|
||
// 30
|
||
StateTransaction transaction { *this };
|
||
if (!m_state.lexer.consume_specific("30"sv))
|
||
return false;
|
||
m_state.parse_result.time_minute_thirty_only = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeMinuteThirtyOneOnly
|
||
bool ISO8601Parser::parse_time_minute_thirty_one_only()
|
||
{
|
||
// TimeMinuteThirtyOneOnly :
|
||
// 31
|
||
StateTransaction transaction { *this };
|
||
if (!m_state.lexer.consume_specific("31"sv))
|
||
return false;
|
||
m_state.parse_result.time_minute_thirty_one_only = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeSecondNotValidMonth
|
||
bool ISO8601Parser::parse_time_second_not_valid_month()
|
||
{
|
||
// TimeSecondNotValidMonth :
|
||
// 00
|
||
// 13
|
||
// 14
|
||
// 15
|
||
// 16
|
||
// 17
|
||
// 18
|
||
// 19
|
||
// 2 DecimalDigit
|
||
// 3 DecimalDigit
|
||
// 4 DecimalDigit
|
||
// 5 DecimalDigit
|
||
// 60
|
||
StateTransaction transaction { *this };
|
||
if (m_state.lexer.consume_specific('2')
|
||
|| m_state.lexer.consume_specific('3')
|
||
|| m_state.lexer.consume_specific('4')
|
||
|| m_state.lexer.consume_specific('5')) {
|
||
if (!parse_decimal_digit())
|
||
return false;
|
||
} else {
|
||
auto success = m_state.lexer.consume_specific("00"sv)
|
||
|| m_state.lexer.consume_specific("13"sv)
|
||
|| m_state.lexer.consume_specific("14"sv)
|
||
|| m_state.lexer.consume_specific("15"sv)
|
||
|| m_state.lexer.consume_specific("16"sv)
|
||
|| m_state.lexer.consume_specific("17"sv)
|
||
|| m_state.lexer.consume_specific("18"sv)
|
||
|| m_state.lexer.consume_specific("19"sv)
|
||
|| m_state.lexer.consume_specific("60"sv);
|
||
if (!success)
|
||
return false;
|
||
}
|
||
m_state.parse_result.time_second_not_valid_month = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-FractionalPart
|
||
bool ISO8601Parser::parse_fractional_part()
|
||
{
|
||
// FractionalPart :
|
||
// DecimalDigit DecimalDigit[opt] DecimalDigit[opt] DecimalDigit[opt] DecimalDigit[opt] DecimalDigit[opt] DecimalDigit[opt] DecimalDigit[opt] DecimalDigit[opt]
|
||
if (!parse_decimal_digit())
|
||
return false;
|
||
for (size_t i = 0; i < 8; ++i) {
|
||
if (!parse_decimal_digit())
|
||
break;
|
||
}
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-Fraction
|
||
bool ISO8601Parser::parse_fraction()
|
||
{
|
||
// Fraction :
|
||
// DecimalSeparator FractionalPart
|
||
StateTransaction transaction { *this };
|
||
if (!parse_decimal_separator())
|
||
return false;
|
||
if (!parse_fractional_part())
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeFraction
|
||
bool ISO8601Parser::parse_time_fraction()
|
||
{
|
||
// TimeFraction :
|
||
// Fraction
|
||
StateTransaction transaction { *this };
|
||
if (!parse_fraction())
|
||
return false;
|
||
m_state.parse_result.time_fraction = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneUTCOffsetSign
|
||
bool ISO8601Parser::parse_time_zone_utc_offset_sign()
|
||
{
|
||
// TimeZoneUTCOffsetSign :
|
||
// Sign
|
||
StateTransaction transaction { *this };
|
||
if (!parse_sign())
|
||
return false;
|
||
m_state.parse_result.time_zone_utc_offset_sign = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneUTCOffsetHour
|
||
bool ISO8601Parser::parse_time_zone_utc_offset_hour()
|
||
{
|
||
// TimeZoneUTCOffsetHour :
|
||
// Hour
|
||
StateTransaction transaction { *this };
|
||
if (!parse_hour())
|
||
return false;
|
||
m_state.parse_result.time_zone_utc_offset_hour = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneUTCOffsetMinute
|
||
bool ISO8601Parser::parse_time_zone_utc_offset_minute()
|
||
{
|
||
// TimeZoneUTCOffsetMinute :
|
||
// MinuteSecond
|
||
StateTransaction transaction { *this };
|
||
if (!parse_minute_second())
|
||
return false;
|
||
m_state.parse_result.time_zone_utc_offset_minute = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneUTCOffsetSecond
|
||
bool ISO8601Parser::parse_time_zone_utc_offset_second()
|
||
{
|
||
// TimeZoneUTCOffsetSecond :
|
||
// MinuteSecond
|
||
StateTransaction transaction { *this };
|
||
if (!parse_minute_second())
|
||
return false;
|
||
m_state.parse_result.time_zone_utc_offset_second = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneUTCOffsetFractionalPart
|
||
bool ISO8601Parser::parse_time_zone_utc_offset_fractional_part()
|
||
{
|
||
// TimeZoneUTCOffsetFractionalPart :
|
||
// FractionalPart
|
||
StateTransaction transaction { *this };
|
||
if (!parse_fractional_part())
|
||
return false;
|
||
m_state.parse_result.time_zone_utc_offset_fractional_part = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneUTCOffsetFraction
|
||
bool ISO8601Parser::parse_time_zone_utc_offset_fraction()
|
||
{
|
||
// TimeZoneUTCOffsetFraction :
|
||
// DecimalSeparator TimeZoneUTCOffsetFractionalPart
|
||
StateTransaction transaction { *this };
|
||
if (!parse_decimal_separator())
|
||
return false;
|
||
if (!parse_time_zone_utc_offset_fractional_part())
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneNumericUTCOffset
|
||
bool ISO8601Parser::parse_time_zone_numeric_utc_offset()
|
||
{
|
||
// TimeZoneNumericUTCOffset :
|
||
// TimeZoneUTCOffsetSign TimeZoneUTCOffsetHour
|
||
// TimeZoneUTCOffsetSign TimeZoneUTCOffsetHour : TimeZoneUTCOffsetMinute
|
||
// TimeZoneUTCOffsetSign TimeZoneUTCOffsetHour TimeZoneUTCOffsetMinute
|
||
// TimeZoneUTCOffsetSign TimeZoneUTCOffsetHour : TimeZoneUTCOffsetMinute : TimeZoneUTCOffsetSecond TimeZoneUTCOffsetFraction[opt]
|
||
// TimeZoneUTCOffsetSign TimeZoneUTCOffsetHour TimeZoneUTCOffsetMinute TimeZoneUTCOffsetSecond TimeZoneUTCOffsetFraction[opt]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_time_zone_utc_offset_sign())
|
||
return false;
|
||
if (!parse_time_zone_utc_offset_hour())
|
||
return false;
|
||
if (m_state.lexer.consume_specific(':')) {
|
||
if (!parse_time_zone_utc_offset_minute())
|
||
return false;
|
||
if (m_state.lexer.consume_specific(':')) {
|
||
if (!parse_time_zone_utc_offset_second())
|
||
return false;
|
||
(void)parse_time_zone_utc_offset_fraction();
|
||
}
|
||
} else if (parse_time_zone_utc_offset_minute()) {
|
||
if (parse_time_zone_utc_offset_second())
|
||
(void)parse_time_zone_utc_offset_fraction();
|
||
}
|
||
m_state.parse_result.time_zone_numeric_utc_offset = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneUTCOffset
|
||
bool ISO8601Parser::parse_time_zone_utc_offset()
|
||
{
|
||
// TimeZoneUTCOffset :
|
||
// TimeZoneNumericUTCOffset
|
||
// UTCDesignator
|
||
return parse_time_zone_numeric_utc_offset()
|
||
|| parse_utc_designator();
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneNumericUTCOffsetNotAmbiguous
|
||
bool ISO8601Parser::parse_time_zone_numeric_utc_offset_not_ambiguous()
|
||
{
|
||
// TimeZoneNumericUTCOffsetNotAmbiguous :
|
||
// + TimeZoneUTCOffsetHour
|
||
// U+2212 TimeZoneUTCOffsetHour
|
||
// TimeZoneUTCOffsetSign TimeZoneUTCOffsetHour : TimeZoneUTCOffsetMinute
|
||
// TimeZoneUTCOffsetSign TimeZoneUTCOffsetHour TimeZoneUTCOffsetMinute
|
||
// TimeZoneUTCOffsetSign TimeZoneUTCOffsetHour : TimeZoneUTCOffsetMinute : TimeZoneUTCOffsetSecond TimeZoneUTCOffsetFraction[opt]
|
||
// TimeZoneUTCOffsetSign TimeZoneUTCOffsetHour TimeZoneUTCOffsetMinute TimeZoneUTCOffsetSecond TimeZoneUTCOffsetFraction[opt]
|
||
StateTransaction transaction { *this };
|
||
if (m_state.lexer.consume_specific('+') || m_state.lexer.consume_specific("\xE2\x88\x92"sv)) {
|
||
if (!parse_time_zone_utc_offset_hour())
|
||
return false;
|
||
} else {
|
||
if (!parse_time_zone_utc_offset_sign())
|
||
return false;
|
||
if (!parse_time_zone_utc_offset_hour())
|
||
return false;
|
||
if (m_state.lexer.consume_specific(':')) {
|
||
if (!parse_time_zone_utc_offset_minute())
|
||
return false;
|
||
if (m_state.lexer.consume_specific(':')) {
|
||
if (!parse_time_zone_utc_offset_second())
|
||
return false;
|
||
(void)parse_time_zone_utc_offset_fraction();
|
||
}
|
||
} else {
|
||
if (!parse_time_zone_utc_offset_minute())
|
||
return false;
|
||
if (parse_time_zone_utc_offset_second())
|
||
(void)parse_time_zone_utc_offset_fraction();
|
||
}
|
||
}
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneNumericUTCOffsetNotAmbiguousAllowedNegativeHour
|
||
bool ISO8601Parser::parse_time_zone_numeric_utc_offset_not_ambiguous_allowed_negative_hour()
|
||
{
|
||
// TimeZoneNumericUTCOffsetNotAmbiguousAllowedNegativeHour :
|
||
// TimeZoneNumericUTCOffsetNotAmbiguous
|
||
// - TimeHourNotValidMonth
|
||
StateTransaction transaction { *this };
|
||
if (!parse_time_zone_numeric_utc_offset_not_ambiguous()) {
|
||
if (!m_state.lexer.consume_specific('-'))
|
||
return false;
|
||
if (!parse_time_hour_not_valid_month())
|
||
return false;
|
||
}
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneUTCOffsetName
|
||
bool ISO8601Parser::parse_time_zone_utc_offset_name()
|
||
{
|
||
// TimeZoneUTCOffsetName :
|
||
// Sign Hour
|
||
// Sign Hour : MinuteSecond
|
||
// Sign Hour MinuteSecond
|
||
// Sign Hour : MinuteSecond : MinuteSecond Fraction[opt]
|
||
// Sign Hour MinuteSecond MinuteSecond Fraction[opt]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_sign())
|
||
return false;
|
||
if (!parse_hour())
|
||
return false;
|
||
if (m_state.lexer.consume_specific(':')) {
|
||
if (!parse_minute_second())
|
||
return false;
|
||
if (m_state.lexer.consume_specific(':')) {
|
||
if (!parse_minute_second())
|
||
return false;
|
||
(void)parse_fraction();
|
||
}
|
||
} else if (parse_minute_second()) {
|
||
if (parse_minute_second())
|
||
(void)parse_fraction();
|
||
}
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TZLeadingChar
|
||
bool ISO8601Parser::parse_tz_leading_char()
|
||
{
|
||
// TZLeadingChar :
|
||
// Alpha
|
||
// .
|
||
// _
|
||
if (m_state.lexer.next_is(is_ascii_alpha)) {
|
||
m_state.lexer.consume();
|
||
return true;
|
||
}
|
||
return m_state.lexer.consume_specific('.')
|
||
|| m_state.lexer.consume_specific('_');
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TZChar
|
||
bool ISO8601Parser::parse_tz_char()
|
||
{
|
||
// TZChar :
|
||
// Alpha
|
||
// .
|
||
// -
|
||
// _
|
||
if (m_state.lexer.next_is(is_ascii_alpha)) {
|
||
m_state.lexer.consume();
|
||
return true;
|
||
}
|
||
return m_state.lexer.consume_specific('.')
|
||
|| m_state.lexer.consume_specific('-')
|
||
|| m_state.lexer.consume_specific('_');
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneIANANameComponent
|
||
bool ISO8601Parser::parse_time_zone_iana_component()
|
||
{
|
||
// TimeZoneIANANameComponent :
|
||
// TZLeadingChar TZChar[opt] TZChar[opt] TZChar[opt] TZChar[opt] TZChar[opt] TZChar[opt] TZChar[opt] TZChar[opt] TZChar[opt] TZChar[opt] TZChar[opt] TZChar[opt] TZChar[opt] but not one of . or ..
|
||
StateTransaction transaction { *this };
|
||
if (!parse_tz_leading_char())
|
||
return false;
|
||
for (size_t i = 0; i < 13; ++i) {
|
||
if (!parse_tz_char())
|
||
break;
|
||
}
|
||
if (transaction.parsed_string_view().is_one_of("."sv, ".."sv))
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneIANANameTail
|
||
bool ISO8601Parser::parse_time_zone_iana_name_tail()
|
||
{
|
||
// TimeZoneIANANameTail :
|
||
// TimeZoneIANANameComponent
|
||
// TimeZoneIANANameComponent / TimeZoneIANANameTail
|
||
StateTransaction transaction { *this };
|
||
if (!parse_time_zone_iana_component())
|
||
return false;
|
||
while (m_state.lexer.next_is('/')) {
|
||
m_state.lexer.consume();
|
||
if (!parse_time_zone_iana_component())
|
||
return false;
|
||
}
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneIANAName
|
||
bool ISO8601Parser::parse_time_zone_iana_name()
|
||
{
|
||
// TimeZoneIANAName :
|
||
// Etc/GMT ASCIISign UnpaddedHour
|
||
// TimeZoneIANANameTail but not Etc/GMT ASCIISign UnpaddedHour
|
||
auto parse_etc_gmt_with_offset = [this] {
|
||
StateTransaction transaction { *this };
|
||
if (!m_state.lexer.consume_specific("Etc/GMT"sv))
|
||
return false;
|
||
if (!parse_ascii_sign())
|
||
return false;
|
||
if (!parse_unpadded_hour())
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
};
|
||
StateTransaction transaction { *this };
|
||
if (parse_etc_gmt_with_offset()) {
|
||
// no-op.
|
||
} else if (!parse_time_zone_iana_name_tail()) {
|
||
return false;
|
||
}
|
||
m_state.parse_result.time_zone_iana_name = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneBracketedName
|
||
bool ISO8601Parser::parse_time_zone_bracketed_name()
|
||
{
|
||
// TimeZoneBracketedName :
|
||
// TimeZoneIANAName
|
||
// TimeZoneUTCOffsetName
|
||
StateTransaction transaction { *this };
|
||
if (parse_time_zone_iana_name()) {
|
||
// no-op.
|
||
} else if (!parse_time_zone_utc_offset_name()) {
|
||
return false;
|
||
}
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneBracketedAnnotation
|
||
bool ISO8601Parser::parse_time_zone_bracketed_annotation()
|
||
{
|
||
// TimeZoneBracketedAnnotation :
|
||
// [ TimeZoneBracketedName ]
|
||
StateTransaction transaction { *this };
|
||
if (!m_state.lexer.consume_specific('['))
|
||
return false;
|
||
if (!parse_time_zone_bracketed_name())
|
||
return false;
|
||
if (!m_state.lexer.consume_specific(']'))
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneOffsetRequired
|
||
bool ISO8601Parser::parse_time_zone_offset_required()
|
||
{
|
||
// TimeZoneOffsetRequired :
|
||
// TimeZoneUTCOffset TimeZoneBracketedAnnotation[opt]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_time_zone_utc_offset())
|
||
return false;
|
||
(void)parse_time_zone_bracketed_annotation();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZoneNameRequired
|
||
bool ISO8601Parser::parse_time_zone_name_required()
|
||
{
|
||
// TimeZoneNameRequired :
|
||
// TimeZoneUTCOffset[opt] TimeZoneBracketedAnnotation
|
||
StateTransaction transaction { *this };
|
||
(void)parse_time_zone_utc_offset();
|
||
if (!parse_time_zone_bracketed_annotation())
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeZone
|
||
bool ISO8601Parser::parse_time_zone()
|
||
{
|
||
// TimeZone :
|
||
// TimeZoneUTCOffset TimeZoneBracketedAnnotation[opt]
|
||
// TimeZoneBracketedAnnotation
|
||
StateTransaction transaction { *this };
|
||
if (parse_time_zone_utc_offset())
|
||
(void)parse_time_zone_bracketed_annotation();
|
||
else if (!parse_time_zone_bracketed_annotation())
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-CalendarName
|
||
bool ISO8601Parser::parse_calendar_name()
|
||
{
|
||
// CalChar :
|
||
// Alpha
|
||
// DecimalDigit
|
||
// CalendarNameComponent :
|
||
// CalChar CalChar CalChar CalChar[opt] CalChar[opt] CalChar[opt] CalChar[opt] CalChar[opt]
|
||
// CalendarNameTail :
|
||
// CalendarNameComponent
|
||
// CalendarNameComponent - CalendarNameTail
|
||
// CalendarName :
|
||
// CalendarNameTail
|
||
auto parse_calendar_name_component = [&] {
|
||
for (size_t i = 0; i < 8; ++i) {
|
||
if (!m_state.lexer.next_is(is_ascii_alphanumeric))
|
||
return i > 2;
|
||
m_state.lexer.consume();
|
||
}
|
||
return true;
|
||
};
|
||
StateTransaction transaction { *this };
|
||
do {
|
||
if (!parse_calendar_name_component())
|
||
return false;
|
||
} while (m_state.lexer.consume_specific('-'));
|
||
m_state.parse_result.calendar_name = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-Calendar
|
||
bool ISO8601Parser::parse_calendar()
|
||
{
|
||
// Calendar :
|
||
// [u-ca= CalendarName ]
|
||
StateTransaction transaction { *this };
|
||
if (!m_state.lexer.consume_specific("[u-ca="sv))
|
||
return false;
|
||
if (!parse_calendar_name())
|
||
return false;
|
||
if (!m_state.lexer.consume_specific(']'))
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeSpec
|
||
bool ISO8601Parser::parse_time_spec()
|
||
{
|
||
// TimeSpec :
|
||
// TimeHour
|
||
// TimeHour : TimeMinute
|
||
// TimeHour TimeMinute
|
||
// TimeHour : TimeMinute : TimeSecond TimeFraction[opt]
|
||
// TimeHour TimeMinute TimeSecond TimeFraction[opt]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_time_hour())
|
||
return false;
|
||
if (m_state.lexer.consume_specific(':')) {
|
||
if (!parse_time_minute())
|
||
return false;
|
||
if (m_state.lexer.consume_specific(':')) {
|
||
if (!parse_time_second())
|
||
return false;
|
||
(void)parse_time_fraction();
|
||
}
|
||
} else if (parse_time_minute()) {
|
||
if (parse_time_second())
|
||
(void)parse_time_fraction();
|
||
}
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeHourMinuteBasicFormatNotAmbiguous
|
||
bool ISO8601Parser::parse_time_hour_minute_basic_format_not_ambiguous()
|
||
{
|
||
// TimeHourMinuteBasicFormatNotAmbiguous :
|
||
// TimeHourNotValidMonth TimeMinute
|
||
// TimeHour TimeMinuteNotValidDay
|
||
// TimeHourNotThirtyOneDayMonth TimeMinuteThirtyOneOnly
|
||
// TimeHourTwoOnly TimeMinuteThirtyOnly
|
||
{
|
||
StateTransaction transaction { *this };
|
||
if (parse_time_hour_not_valid_month() && parse_time_minute()) {
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
}
|
||
{
|
||
StateTransaction transaction { *this };
|
||
if (parse_time_hour() && parse_time_minute_not_valid_day()) {
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
}
|
||
{
|
||
StateTransaction transaction { *this };
|
||
if (parse_time_hour_not_thirty_one_day_month() && parse_time_minute_thirty_one_only()) {
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
}
|
||
{
|
||
StateTransaction transaction { *this };
|
||
if (parse_time_hour_two_only() && parse_time_minute_thirty_only()) {
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeSpecWithOptionalTimeZoneNotAmbiguous
|
||
bool ISO8601Parser::parse_time_spec_with_optional_time_zone_not_ambiguous()
|
||
{
|
||
// TimeSpecWithOptionalTimeZoneNotAmbiguous :
|
||
// TimeHour TimeZoneNumericUTCOffsetNotAmbiguous[opt] TimeZoneBracketedAnnotation[opt]
|
||
// TimeHourNotValidMonth TimeZone
|
||
// TimeHour : TimeMinute TimeZone[opt]
|
||
// TimeHourMinuteBasicFormatNotAmbiguous TimeZoneBracketedAnnotation[opt]
|
||
// TimeHour TimeMinute TimeZoneNumericUTCOffsetNotAmbiguousAllowedNegativeHour TimeZoneBracketedAnnotation[opt]
|
||
// TimeHour : TimeMinute : TimeSecond TimeFraction[opt] TimeZone[opt]
|
||
// TimeHour TimeMinute TimeSecondNotValidMonth TimeZone[opt]
|
||
// TimeHour TimeMinute TimeSecond TimeFraction TimeZone[opt]
|
||
// NOTE: Reverse order here because `TimeHour TimeZoneNumericUTCOffsetNotAmbiguous[opt] TimeZoneBracketedAnnotation[opt]` can
|
||
// be a subset of `TimeHourNotValidMonth TimeZone`, so we'd not attempt to parse that but may not exhaust the input string.
|
||
{
|
||
StateTransaction transaction { *this };
|
||
if (parse_time_hour_not_valid_month() && parse_time_zone()) {
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
}
|
||
{
|
||
StateTransaction transaction { *this };
|
||
if (parse_time_hour()) {
|
||
if (m_state.lexer.consume_specific(':')) {
|
||
if (parse_time_minute()) {
|
||
if (m_state.lexer.consume_specific(':')) {
|
||
if (parse_time_second()) {
|
||
(void)parse_time_fraction();
|
||
(void)parse_time_zone();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
} else {
|
||
(void)parse_time_zone();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
}
|
||
} else if (parse_time_minute()) {
|
||
if (parse_time_zone_numeric_utc_offset_not_ambiguous_allowed_negative_hour()) {
|
||
(void)parse_time_zone_bracketed_annotation();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
{
|
||
StateTransaction sub_transaction { *this };
|
||
if (parse_time_second() && parse_time_fraction()) {
|
||
(void)parse_time_zone();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
}
|
||
if (parse_time_second_not_valid_month()) {
|
||
(void)parse_time_zone();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
} else {
|
||
(void)parse_time_zone_numeric_utc_offset_not_ambiguous();
|
||
(void)parse_time_zone_bracketed_annotation();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
{
|
||
StateTransaction transaction { *this };
|
||
if (parse_time_hour_minute_basic_format_not_ambiguous()) {
|
||
(void)parse_time_zone_bracketed_annotation();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TimeSpecSeparator
|
||
bool ISO8601Parser::parse_time_spec_separator()
|
||
{
|
||
// TimeSpecSeparator :
|
||
// DateTimeSeparator TimeSpec
|
||
StateTransaction transaction { *this };
|
||
if (!parse_date_time_separator())
|
||
return false;
|
||
if (!parse_time_spec())
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DateTime
|
||
bool ISO8601Parser::parse_date_time()
|
||
{
|
||
// DateTime :
|
||
// Date TimeSpecSeparator[opt] TimeZone[opt]
|
||
if (!parse_date())
|
||
return false;
|
||
(void)parse_time_spec_separator();
|
||
(void)parse_time_zone();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-CalendarTime
|
||
bool ISO8601Parser::parse_calendar_time()
|
||
{
|
||
// CalendarTime :
|
||
// TimeDesignator TimeSpec TimeZone[opt] Calendar[opt]
|
||
// TimeSpec TimeZone[opt] Calendar
|
||
// TimeSpecWithOptionalTimeZoneNotAmbiguous
|
||
{
|
||
StateTransaction transaction { *this };
|
||
if (parse_time_designator() && parse_time_spec()) {
|
||
(void)parse_time_zone();
|
||
(void)parse_calendar();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
}
|
||
{
|
||
StateTransaction transaction { *this };
|
||
if (parse_time_spec()) {
|
||
(void)parse_time_zone();
|
||
if (parse_calendar()) {
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
return parse_time_spec_with_optional_time_zone_not_ambiguous();
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-CalendarDateTime
|
||
bool ISO8601Parser::parse_calendar_date_time()
|
||
{
|
||
// CalendarDateTime :
|
||
// DateTime Calendar[opt]
|
||
if (!parse_date_time())
|
||
return false;
|
||
(void)parse_calendar();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-CalendarDateTimeTimeRequired
|
||
bool ISO8601Parser::parse_calendar_date_time_time_required()
|
||
{
|
||
// CalendarDateTimeTimeRequired :
|
||
// Date TimeSpecSeparator TimeZone[opt] Calendar[opt]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_date())
|
||
return false;
|
||
if (!parse_time_spec_separator())
|
||
return false;
|
||
(void)parse_time_zone();
|
||
(void)parse_calendar();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationWholeSeconds
|
||
bool ISO8601Parser::parse_duration_whole_seconds()
|
||
{
|
||
// DurationWholeSeconds :
|
||
// DecimalDigits[~Sep]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_decimal_digits())
|
||
return false;
|
||
m_state.parse_result.duration_whole_seconds = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationSecondsFraction
|
||
bool ISO8601Parser::parse_duration_seconds_fraction()
|
||
{
|
||
// DurationSecondsFraction :
|
||
// TimeFraction
|
||
StateTransaction transaction { *this };
|
||
if (!parse_time_fraction())
|
||
return false;
|
||
m_state.parse_result.duration_seconds_fraction = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationSecondsPart
|
||
bool ISO8601Parser::parse_duration_seconds_part()
|
||
{
|
||
// DurationSecondsPart :
|
||
// DurationWholeSeconds DurationSecondsFraction[opt] SecondsDesignator
|
||
StateTransaction transaction { *this };
|
||
if (!parse_duration_whole_seconds())
|
||
return false;
|
||
(void)parse_duration_seconds_fraction();
|
||
if (!parse_seconds_designator())
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationWholeMinutes
|
||
bool ISO8601Parser::parse_duration_whole_minutes()
|
||
{
|
||
// DurationWholeMinutes :
|
||
// DecimalDigits[~Sep]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_decimal_digits())
|
||
return false;
|
||
m_state.parse_result.duration_whole_minutes = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationMinutesFraction
|
||
bool ISO8601Parser::parse_duration_minutes_fraction()
|
||
{
|
||
// DurationMinutesFraction :
|
||
// TimeFraction
|
||
StateTransaction transaction { *this };
|
||
if (!parse_time_fraction())
|
||
return false;
|
||
m_state.parse_result.duration_minutes_fraction = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationMinutesPart
|
||
bool ISO8601Parser::parse_duration_minutes_part()
|
||
{
|
||
// DurationMinutesPart :
|
||
// DurationWholeMinutes DurationMinutesFraction[opt] MinutesDesignator DurationSecondsPart[opt]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_duration_whole_minutes())
|
||
return false;
|
||
(void)parse_duration_minutes_fraction();
|
||
if (!parse_minutes_designator())
|
||
return false;
|
||
(void)parse_duration_seconds_part();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationWholeHours
|
||
bool ISO8601Parser::parse_duration_whole_hours()
|
||
{
|
||
// DurationWholeHours :
|
||
// DecimalDigits[~Sep]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_decimal_digits())
|
||
return false;
|
||
m_state.parse_result.duration_whole_hours = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationHoursFraction
|
||
bool ISO8601Parser::parse_duration_hours_fraction()
|
||
{
|
||
// DurationHoursFraction :
|
||
// TimeFraction
|
||
StateTransaction transaction { *this };
|
||
if (!parse_time_fraction())
|
||
return false;
|
||
m_state.parse_result.duration_hours_fraction = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationHoursPart
|
||
bool ISO8601Parser::parse_duration_hours_part()
|
||
{
|
||
// DurationHoursPart :
|
||
// DurationWholeHours DurationHoursFraction[opt] HoursDesignator DurationMinutesPart
|
||
// DurationWholeHours DurationHoursFraction[opt] HoursDesignator DurationSecondsPart[opt]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_duration_whole_hours())
|
||
return false;
|
||
(void)parse_duration_hours_fraction();
|
||
if (!parse_hours_designator())
|
||
return false;
|
||
(void)(parse_duration_minutes_part()
|
||
|| parse_duration_seconds_part());
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationTime
|
||
bool ISO8601Parser::parse_duration_time()
|
||
{
|
||
// DurationTime :
|
||
// TimeDesignator DurationHoursPart
|
||
// TimeDesignator DurationMinutesPart
|
||
// TimeDesignator DurationSecondsPart
|
||
StateTransaction transaction { *this };
|
||
if (!parse_time_designator())
|
||
return false;
|
||
auto success = parse_duration_hours_part()
|
||
|| parse_duration_minutes_part()
|
||
|| parse_duration_seconds_part();
|
||
if (!success)
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationDays
|
||
bool ISO8601Parser::parse_duration_days()
|
||
{
|
||
// DurationDays :
|
||
// DecimalDigits[~Sep]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_decimal_digits())
|
||
return false;
|
||
m_state.parse_result.duration_days = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationDaysPart
|
||
bool ISO8601Parser::parse_duration_days_part()
|
||
{
|
||
// DurationDaysPart :
|
||
// DurationDays DaysDesignator
|
||
StateTransaction transaction { *this };
|
||
if (!parse_duration_days())
|
||
return false;
|
||
if (!parse_days_designator())
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationWeeks
|
||
bool ISO8601Parser::parse_duration_weeks()
|
||
{
|
||
// DurationWeeks :
|
||
// DecimalDigits[~Sep]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_decimal_digits())
|
||
return false;
|
||
m_state.parse_result.duration_weeks = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationWeeksPart
|
||
bool ISO8601Parser::parse_duration_weeks_part()
|
||
{
|
||
// DurationWeeksPart :
|
||
// DurationWeeks WeeksDesignator DurationDaysPart[opt]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_duration_weeks())
|
||
return false;
|
||
if (!parse_weeks_designator())
|
||
return false;
|
||
(void)parse_duration_days_part();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationMonths
|
||
bool ISO8601Parser::parse_duration_months()
|
||
{
|
||
// DurationMonths :
|
||
// DecimalDigits[~Sep]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_decimal_digits())
|
||
return false;
|
||
m_state.parse_result.duration_months = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationMonthsPart
|
||
bool ISO8601Parser::parse_duration_months_part()
|
||
{
|
||
// DurationMonthsPart :
|
||
// DurationMonths MonthsDesignator DurationWeeksPart
|
||
// DurationMonths MonthsDesignator DurationDaysPart[opt]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_duration_months())
|
||
return false;
|
||
if (!parse_months_designator())
|
||
return false;
|
||
(void)(parse_duration_weeks_part()
|
||
|| parse_duration_days_part());
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationYears
|
||
bool ISO8601Parser::parse_duration_years()
|
||
{
|
||
// DurationYears :
|
||
// DecimalDigits[~Sep]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_decimal_digits())
|
||
return false;
|
||
m_state.parse_result.duration_years = transaction.parsed_string_view();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationYearsPart
|
||
bool ISO8601Parser::parse_duration_years_part()
|
||
{
|
||
// DurationYearsPart :
|
||
// DurationYears YearsDesignator DurationMonthsPart
|
||
// DurationYears YearsDesignator DurationWeeksPart
|
||
// DurationYears YearsDesignator DurationDaysPart[opt]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_duration_years())
|
||
return false;
|
||
if (!parse_years_designator())
|
||
return false;
|
||
(void)(parse_duration_months_part()
|
||
|| parse_duration_weeks_part()
|
||
|| parse_duration_days_part());
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-DurationDate
|
||
bool ISO8601Parser::parse_duration_date()
|
||
{
|
||
// DurationDate :
|
||
// DurationYearsPart DurationTime[opt]
|
||
// DurationMonthsPart DurationTime[opt]
|
||
// DurationWeeksPart DurationTime[opt]
|
||
// DurationDaysPart DurationTime[opt]
|
||
auto success = parse_duration_years_part()
|
||
|| parse_duration_months_part()
|
||
|| parse_duration_weeks_part()
|
||
|| parse_duration_days_part();
|
||
if (!success)
|
||
return false;
|
||
(void)parse_duration_time();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-Duration
|
||
bool ISO8601Parser::parse_duration()
|
||
{
|
||
// Duration :
|
||
// Sign[opt] DurationDesignator DurationDate
|
||
// Sign[opt] DurationDesignator DurationTime
|
||
StateTransaction transaction { *this };
|
||
(void)parse_sign();
|
||
if (!parse_duration_designator())
|
||
return false;
|
||
auto success = parse_duration_date()
|
||
|| parse_duration_time();
|
||
if (!success)
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TemporalInstantString
|
||
bool ISO8601Parser::parse_temporal_instant_string()
|
||
{
|
||
// TemporalInstantString :
|
||
// Date TimeSpecSeparator[opt] TimeZoneOffsetRequired
|
||
StateTransaction transaction { *this };
|
||
if (!parse_date())
|
||
return false;
|
||
(void)parse_time_spec_separator();
|
||
if (!parse_time_zone_offset_required())
|
||
return false;
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TemporalDateTimeString
|
||
bool ISO8601Parser::parse_temporal_date_time_string()
|
||
{
|
||
// TemporalDateTimeString :
|
||
// CalendarDateTime
|
||
return parse_calendar_date_time();
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TemporalDurationString
|
||
bool ISO8601Parser::parse_temporal_duration_string()
|
||
{
|
||
// TemporalDurationString :
|
||
// Duration
|
||
return parse_duration();
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TemporalMonthDayString
|
||
bool ISO8601Parser::parse_temporal_month_day_string()
|
||
{
|
||
// TemporalMonthDayString :
|
||
// DateSpecMonthDay
|
||
// CalendarDateTime
|
||
// NOTE: Reverse order here because `DateSpecMonthDay` can be a subset of `CalendarDateTime`,
|
||
// so we'd not attempt to parse that but may not exhaust the input string.
|
||
return parse_calendar_date_time()
|
||
|| parse_date_spec_month_day();
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TemporalTimeString
|
||
bool ISO8601Parser::parse_temporal_time_string()
|
||
{
|
||
// TemporalTimeString :
|
||
// CalendarTime
|
||
// CalendarDateTimeTimeRequired
|
||
// NOTE: Reverse order here because `Time` can be a subset of `CalendarDateTimeTimeRequired`,
|
||
// so we'd not attempt to parse that but may not exhaust the input string.
|
||
return parse_calendar_date_time_time_required()
|
||
|| parse_calendar_time();
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TemporalTimeZoneIdentifier
|
||
bool ISO8601Parser::parse_temporal_time_zone_identifier()
|
||
{
|
||
// TemporalTimeZoneIdentifier :
|
||
// TimeZoneNumericUTCOffset
|
||
// TimeZoneIANAName
|
||
return parse_time_zone_numeric_utc_offset()
|
||
|| parse_time_zone_iana_name();
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TemporalTimeZoneString
|
||
bool ISO8601Parser::parse_temporal_time_zone_string()
|
||
{
|
||
// TemporalTimeZoneString :
|
||
// TemporalTimeZoneIdentifier
|
||
// Date TimeSpecSeparator[opt] TimeZone Calendar[opt]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_temporal_time_zone_identifier()) {
|
||
if (!parse_date())
|
||
return false;
|
||
(void)parse_time_spec_separator();
|
||
if (!parse_time_zone())
|
||
return false;
|
||
(void)parse_calendar();
|
||
}
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TemporalYearMonthString
|
||
bool ISO8601Parser::parse_temporal_year_month_string()
|
||
{
|
||
// TemporalYearMonthString :
|
||
// DateSpecYearMonth
|
||
// CalendarDateTime
|
||
// NOTE: Reverse order here because `DateSpecYearMonth` can be a subset of `CalendarDateTime`,
|
||
// so we'd not attempt to parse that but may not exhaust the input string.
|
||
return parse_calendar_date_time()
|
||
|| parse_date_spec_year_month();
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TemporalZonedDateTimeString
|
||
bool ISO8601Parser::parse_temporal_zoned_date_time_string()
|
||
{
|
||
// TemporalZonedDateTimeString :
|
||
// Date TimeSpecSeparator[opt] TimeZoneNameRequired Calendar[opt]
|
||
StateTransaction transaction { *this };
|
||
if (!parse_date())
|
||
return false;
|
||
(void)parse_time_spec_separator();
|
||
if (!parse_time_zone_name_required())
|
||
return false;
|
||
(void)parse_calendar();
|
||
transaction.commit();
|
||
return true;
|
||
}
|
||
|
||
// https://tc39.es/proposal-temporal/#prod-TemporalCalendarString
|
||
bool ISO8601Parser::parse_temporal_calendar_string()
|
||
{
|
||
// TemporalCalendarString :
|
||
// CalendarName
|
||
// TemporalInstantString
|
||
// CalendarDateTime
|
||
// CalendarTime
|
||
// DateSpecYearMonth
|
||
// DateSpecMonthDay
|
||
return parse_calendar_name()
|
||
|| parse_temporal_instant_string()
|
||
|| parse_calendar_date_time()
|
||
|| parse_date_spec_year_month()
|
||
|| parse_date_spec_month_day()
|
||
|| parse_calendar_time();
|
||
}
|
||
|
||
}
|
||
|
||
#define JS_ENUMERATE_ISO8601_PRODUCTION_PARSERS \
|
||
__JS_ENUMERATE(TemporalInstantString, parse_temporal_instant_string) \
|
||
__JS_ENUMERATE(TemporalDateTimeString, parse_temporal_date_time_string) \
|
||
__JS_ENUMERATE(TemporalDurationString, parse_temporal_duration_string) \
|
||
__JS_ENUMERATE(TemporalMonthDayString, parse_temporal_month_day_string) \
|
||
__JS_ENUMERATE(TemporalTimeString, parse_temporal_time_string) \
|
||
__JS_ENUMERATE(TemporalTimeZoneString, parse_temporal_time_zone_string) \
|
||
__JS_ENUMERATE(TemporalYearMonthString, parse_temporal_year_month_string) \
|
||
__JS_ENUMERATE(TemporalZonedDateTimeString, parse_temporal_zoned_date_time_string) \
|
||
__JS_ENUMERATE(TemporalCalendarString, parse_temporal_calendar_string)
|
||
|
||
Optional<ParseResult> parse_iso8601(Production production, StringView input)
|
||
{
|
||
auto parser = Detail::ISO8601Parser { input };
|
||
|
||
switch (production) {
|
||
#define __JS_ENUMERATE(ProductionName, parse_production) \
|
||
case Production::ProductionName: \
|
||
if (!parser.parse_production()) \
|
||
return {}; \
|
||
break;
|
||
JS_ENUMERATE_ISO8601_PRODUCTION_PARSERS
|
||
#undef __JS_ENUMERATE
|
||
default:
|
||
VERIFY_NOT_REACHED();
|
||
}
|
||
|
||
// If we parsed successfully but didn't reach the end, the string doesn't match the given production.
|
||
if (!parser.lexer().is_eof())
|
||
return {};
|
||
|
||
return parser.parse_result();
|
||
}
|
||
|
||
}
|