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https://github.com/RGBCube/serenity
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LibJS: Implement parsing of TemporalRelativeToString
This commit is contained in:
Linus Groh
parent
98b876ad3f
commit
1583c7257c
12 changed files with 370 additions and 61 deletions
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@ -132,6 +132,21 @@ bool ISO8601Parser::parse_date_time_separator()
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|| m_state.lexer.consume_specific('t');
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}
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// https://tc39.es/proposal-temporal/#prod-UTCDesignator
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bool ISO8601Parser::parse_utc_designator()
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{
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// UTCDesignator : one of
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// Z z
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StateTransaction transaction { *this };
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auto success = m_state.lexer.consume_specific('Z')
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|| m_state.lexer.consume_specific('z');
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if (!success)
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return false;
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m_state.parse_result.utc_designator = transaction.parsed_string_view();
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transaction.commit();
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return true;
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}
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// https://tc39.es/proposal-temporal/#prod-DateYear
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bool ISO8601Parser::parse_date_year()
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{
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@ -354,12 +369,235 @@ bool ISO8601Parser::parse_time_fraction()
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return parse_fraction();
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}
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// https://tc39.es/proposal-temporal/#prod-TimeZoneUTCOffsetSign
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bool ISO8601Parser::parse_time_zone_utc_offset_sign()
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{
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// TimeZoneUTCOffsetSign :
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// Sign
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StateTransaction transaction { *this };
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if (!parse_sign())
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return false;
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m_state.parse_result.time_zone_utc_offset_sign = transaction.parsed_string_view();
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transaction.commit();
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return true;
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}
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// https://tc39.es/proposal-temporal/#prod-TimeZoneUTCOffsetHour
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bool ISO8601Parser::parse_time_zone_utc_offset_hour()
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{
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// TimeZoneUTCOffsetHour :
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// Hour
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StateTransaction transaction { *this };
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if (!parse_hour())
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return false;
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m_state.parse_result.time_zone_utc_offset_hour = transaction.parsed_string_view();
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transaction.commit();
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return true;
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}
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// https://tc39.es/proposal-temporal/#prod-TimeZoneUTCOffsetMinute
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bool ISO8601Parser::parse_time_zone_utc_offset_minute()
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{
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// TimeZoneUTCOffsetMinute :
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// MinuteSecond
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StateTransaction transaction { *this };
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if (!parse_minute_second())
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return false;
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m_state.parse_result.time_zone_utc_offset_minute = transaction.parsed_string_view();
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transaction.commit();
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return true;
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}
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// https://tc39.es/proposal-temporal/#prod-TimeZoneUTCOffsetSecond
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bool ISO8601Parser::parse_time_zone_utc_offset_second()
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{
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// TimeZoneUTCOffsetSecond :
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// MinuteSecond
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StateTransaction transaction { *this };
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if (!parse_minute_second())
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return false;
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m_state.parse_result.time_zone_utc_offset_second = transaction.parsed_string_view();
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transaction.commit();
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return true;
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}
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// https://tc39.es/proposal-temporal/#prod-TimeZoneUTCOffsetFractionalPart
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bool ISO8601Parser::parse_time_zone_utc_offset_fractional_part()
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{
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// TimeZoneUTCOffsetFractionalPart :
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// FractionalPart
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StateTransaction transaction { *this };
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if (!parse_fractional_part())
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return false;
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m_state.parse_result.time_zone_utc_offset_fractional_part = transaction.parsed_string_view();
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transaction.commit();
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return true;
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}
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// https://tc39.es/proposal-temporal/#prod-TimeZoneUTCOffsetFraction
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bool ISO8601Parser::parse_time_zone_utc_offset_fraction()
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{
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// TimeZoneUTCOffsetFraction :
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// DecimalSeparator TimeZoneUTCOffsetFractionalPart
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StateTransaction transaction { *this };
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if (!parse_decimal_separator())
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return false;
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if (!parse_time_zone_utc_offset_fractional_part())
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return false;
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transaction.commit();
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return true;
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}
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// https://tc39.es/proposal-temporal/#prod-TimeZoneNumericUTCOffset
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bool ISO8601Parser::parse_time_zone_numeric_utc_offset()
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{
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// TimeZoneNumericUTCOffset :
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// TimeZoneUTCOffsetSign TimeZoneUTCOffsetHour
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// TimeZoneUTCOffsetSign TimeZoneUTCOffsetHour : TimeZoneUTCOffsetMinute
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// TimeZoneUTCOffsetSign TimeZoneUTCOffsetHour TimeZoneUTCOffsetMinute
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// TimeZoneUTCOffsetSign TimeZoneUTCOffsetHour : TimeZoneUTCOffsetMinute : TimeZoneUTCOffsetSecond TimeZoneUTCOffsetFraction[opt]
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// TimeZoneUTCOffsetSign TimeZoneUTCOffsetHour TimeZoneUTCOffsetMinute TimeZoneUTCOffsetSecond TimeZoneUTCOffsetFraction[opt]
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StateTransaction transaction { *this };
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if (!parse_time_zone_utc_offset_sign())
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return false;
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if (!parse_time_zone_utc_offset_hour())
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return false;
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if (m_state.lexer.consume_specific(':')) {
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if (!parse_time_zone_utc_offset_minute())
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return false;
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if (m_state.lexer.consume_specific(':')) {
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if (!parse_time_zone_utc_offset_second())
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return false;
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(void)parse_time_zone_utc_offset_fraction();
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}
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} else if (parse_time_zone_utc_offset_minute()) {
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if (parse_time_zone_utc_offset_second())
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(void)parse_time_zone_utc_offset_fraction();
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}
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transaction.commit();
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return true;
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}
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// https://tc39.es/proposal-temporal/#prod-TimeZoneUTCOffset
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bool ISO8601Parser::parse_time_zone_utc_offset()
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{
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// TimeZoneUTCOffset :
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// TimeZoneNumericUTCOffset
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// UTCDesignator
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return parse_time_zone_numeric_utc_offset()
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|| parse_utc_designator();
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}
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// https://tc39.es/proposal-temporal/#prod-TimeZoneUTCOffsetName
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bool ISO8601Parser::parse_time_zone_utc_offset_name()
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{
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// TimeZoneUTCOffsetName :
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// Sign Hour
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// Sign Hour : MinuteSecond
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// Sign Hour MinuteSecond
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// Sign Hour : MinuteSecond : MinuteSecond Fraction[opt]
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// Sign Hour MinuteSecond MinuteSecond Fraction[opt]
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StateTransaction transaction { *this };
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if (!parse_sign())
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return false;
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if (!parse_hour())
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return false;
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if (m_state.lexer.consume_specific(':')) {
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if (!parse_minute_second())
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return false;
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if (m_state.lexer.consume_specific(':')) {
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if (!parse_minute_second())
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return false;
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(void)parse_fraction();
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}
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} else if (parse_minute_second()) {
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if (parse_minute_second())
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(void)parse_fraction();
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}
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transaction.commit();
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return true;
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}
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// https://tc39.es/proposal-temporal/#prod-TimeZoneIANAName
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bool ISO8601Parser::parse_time_zone_iana_name()
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{
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// TZLeadingChar :
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// Alpha
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// .
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// _
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// TZChar :
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// Alpha
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// .
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// -
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// _
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// TimeZoneIANANameComponent :
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// 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 ..
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// TimeZoneIANANameTail :
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// TimeZoneIANANameComponent
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// TimeZoneIANANameComponent / TimeZoneIANANameTail
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// TimeZoneIANAName :
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// TimeZoneIANANameTail
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StateTransaction transaction { *this };
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// TODO: Implement the full production. Currently, anything other than "UTC" would get rejected as unknown anyway.
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auto success = (m_state.lexer.consume_specific('U') || m_state.lexer.consume_specific('u'))
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&& (m_state.lexer.consume_specific('T') || m_state.lexer.consume_specific('t'))
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&& (m_state.lexer.consume_specific('C') || m_state.lexer.consume_specific('c'));
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if (!success)
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return false;
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m_state.parse_result.time_zone_iana_name = transaction.parsed_string_view();
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transaction.commit();
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return true;
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}
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// https://tc39.es/proposal-temporal/#prod-TimeZoneBracketedName
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bool ISO8601Parser::parse_time_zone_bracketed_name()
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{
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// TimeZoneBracketedName :
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// TimeZoneIANAName
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// Etc/GMT ASCIISign Hour
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// TimeZoneUTCOffsetName
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StateTransaction transaction { *this };
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if (parse_time_zone_iana_name()) {
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// no-op.
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} else if (m_state.lexer.consume_specific("Etc/GMT"sv)) {
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if (!parse_ascii_sign())
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return false;
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if (!parse_hour())
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return false;
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} else if (!parse_time_zone_utc_offset_name()) {
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return false;
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}
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transaction.commit();
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return true;
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}
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// https://tc39.es/proposal-temporal/#prod-TimeZoneBracketedAnnotation
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bool ISO8601Parser::parse_time_zone_bracketed_annotation()
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{
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// TimeZoneBracketedAnnotation :
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// [ TimeZoneBracketedName ]
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StateTransaction transaction { *this };
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if (!m_state.lexer.consume_specific('['))
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return false;
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if (!parse_time_zone_bracketed_name())
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return false;
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if (!m_state.lexer.consume_specific(']'))
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return false;
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transaction.commit();
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return true;
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}
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// https://tc39.es/proposal-temporal/#prod-TimeZoneOffsetRequired
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bool ISO8601Parser::parse_time_zone_offset_required()
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{
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// TimeZoneOffsetRequired :
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// TimeZoneUTCOffset TimeZoneBracketedAnnotation[opt]
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return false;
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StateTransaction transaction { *this };
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if (!parse_time_zone_utc_offset())
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return false;
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(void)parse_time_zone_bracketed_annotation();
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transaction.commit();
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return true;
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}
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// https://tc39.es/proposal-temporal/#prod-TimeZoneNameRequired
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@ -367,7 +605,12 @@ bool ISO8601Parser::parse_time_zone_name_required()
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{
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// TimeZoneNameRequired :
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// TimeZoneUTCOffset[opt] TimeZoneBracketedAnnotation
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return false;
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StateTransaction transaction { *this };
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(void)parse_time_zone_utc_offset();
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if (!parse_time_zone_bracketed_annotation())
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return false;
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transaction.commit();
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return true;
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}
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// https://tc39.es/proposal-temporal/#prod-TimeZone
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@ -543,6 +786,35 @@ bool ISO8601Parser::parse_temporal_time_string()
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|| parse_time();
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}
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// https://tc39.es/proposal-temporal/#prod-TemporalTimeZoneIdentifier
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bool ISO8601Parser::parse_temporal_time_zone_identifier()
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{
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// TemporalTimeZoneIdentifier :
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// TimeZoneNumericUTCOffset
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// TimeZoneIANAName
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return parse_time_zone_numeric_utc_offset()
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|| parse_time_zone_iana_name();
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}
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// https://tc39.es/proposal-temporal/#prod-TemporalTimeZoneString
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bool ISO8601Parser::parse_temporal_time_zone_string()
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{
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// TemporalTimeZoneString :
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// TemporalTimeZoneIdentifier
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// Date TimeSpecSeparator[opt] TimeZone Calendar[opt]
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StateTransaction transaction { *this };
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if (!parse_temporal_time_zone_identifier()) {
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if (!parse_date())
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return false;
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(void)parse_time_spec_separator();
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if (!parse_time_zone())
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return false;
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(void)parse_calendar();
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}
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transaction.commit();
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return true;
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}
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// https://tc39.es/proposal-temporal/#prod-TemporalYearMonthString
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bool ISO8601Parser::parse_temporal_year_month_string()
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{
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@ -571,15 +843,27 @@ bool ISO8601Parser::parse_temporal_zoned_date_time_string()
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return true;
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}
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// https://tc39.es/proposal-temporal/#prod-TemporalRelativeToString
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bool ISO8601Parser::parse_temporal_relative_to_string()
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{
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// TemporalRelativeToString :
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// TemporalDateTimeString
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// TemporalZonedDateTimeString
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return parse_temporal_date_time_string()
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|| parse_temporal_zoned_date_time_string();
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}
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#define JS_ENUMERATE_ISO8601_PRODUCTION_PARSERS \
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__JS_ENUMERATE(TemporalDateString, parse_temporal_date_string) \
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__JS_ENUMERATE(TemporalDateTimeString, parse_temporal_date_time_string) \
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__JS_ENUMERATE(TemporalMonthDayString, parse_temporal_month_day_string) \
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__JS_ENUMERATE(TemporalTimeString, parse_temporal_time_string) \
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__JS_ENUMERATE(TemporalYearMonthString, parse_temporal_year_month_string) \
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__JS_ENUMERATE(TemporalZonedDateTimeString, parse_temporal_zoned_date_time_string)
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}
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#define JS_ENUMERATE_ISO8601_PRODUCTION_PARSERS \
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__JS_ENUMERATE(TemporalDateString, parse_temporal_date_string) \
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__JS_ENUMERATE(TemporalDateTimeString, parse_temporal_date_time_string) \
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__JS_ENUMERATE(TemporalMonthDayString, parse_temporal_month_day_string) \
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__JS_ENUMERATE(TemporalTimeString, parse_temporal_time_string) \
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__JS_ENUMERATE(TemporalTimeZoneString, parse_temporal_time_zone_string) \
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__JS_ENUMERATE(TemporalYearMonthString, parse_temporal_year_month_string) \
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__JS_ENUMERATE(TemporalZonedDateTimeString, parse_temporal_zoned_date_time_string) \
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__JS_ENUMERATE(TemporalRelativeToString, parse_temporal_relative_to_string)
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Optional<ParseResult> parse_iso8601(Production production, StringView input)
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{
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@ -603,5 +887,4 @@ Optional<ParseResult> parse_iso8601(Production production, StringView input)
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return parser.parse_result();
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}
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}
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