18b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch// Copyright 2011 the V8 project authors. All rights reserved. 2a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Redistribution and use in source and binary forms, with or without 3a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// modification, are permitted provided that the following conditions are 4a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// met: 5a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 6a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions of source code must retain the above copyright 7a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// notice, this list of conditions and the following disclaimer. 8a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions in binary form must reproduce the above 9a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// copyright notice, this list of conditions and the following 10a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// disclaimer in the documentation and/or other materials provided 11a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// with the distribution. 12a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Neither the name of Google Inc. nor the names of its 13a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// contributors may be used to endorse or promote products derived 14a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// from this software without specific prior written permission. 15a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 16a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 28a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#ifndef V8_DATEPARSER_INL_H_ 29a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#define V8_DATEPARSER_INL_H_ 30a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 313ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block#include "dateparser.h" 323ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block 33a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace v8 { 34a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace internal { 35a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 36a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocktemplate <typename Char> 378b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdochbool DateParser::Parse(Vector<Char> str, 388b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch FixedArray* out, 398b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch UnicodeCache* unicode_cache) { 40a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(out->length() >= OUTPUT_SIZE); 418b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch InputReader<Char> in(unicode_cache, str); 423fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch DateStringTokenizer<Char> scanner(&in); 43a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block TimeZoneComposer tz; 44a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block TimeComposer time; 45a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block DayComposer day; 46a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 473fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Specification: 483fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Accept ES5 ISO 8601 date-time-strings or legacy dates compatible 493fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // with Safari. 503fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // ES5 ISO 8601 dates: 513fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // [('-'|'+')yy]yyyy[-MM[-DD]][THH:mm[:ss[.sss]][Z|(+|-)hh:mm]] 523fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // where yyyy is in the range 0000..9999 and 533fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // +/-yyyyyy is in the range -999999..+999999 - 543fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // but -000000 is invalid (year zero must be positive), 553fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // MM is in the range 01..12, 563fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // DD is in the range 01..31, 573fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // MM and DD defaults to 01 if missing,, 583fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // HH is generally in the range 00..23, but can be 24 if mm, ss 593fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // and sss are zero (or missing), representing midnight at the 603fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // end of a day, 613fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // mm and ss are in the range 00..59, 623fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // sss is in the range 000..999, 633fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // hh is in the range 00..23, 643fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // mm, ss, and sss default to 00 if missing, and 653fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // timezone defaults to Z if missing. 663fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Extensions: 673fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // We also allow sss to have more or less than three digits (but at 683fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // least one). 693fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // We allow hh:mm to be specified as hhmm. 703fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Legacy dates: 713fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Any unrecognized word before the first number is ignored. 723fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Parenthesized text is ignored. 733fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // An unsigned number followed by ':' is a time value, and is 743fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // added to the TimeComposer. A number followed by '::' adds a second 753fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // zero as well. A number followed by '.' is also a time and must be 763fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // followed by milliseconds. 773fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Any other number is a date component and is added to DayComposer. 783fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // A month name (or really: any word having the same first three letters 793fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // as a month name) is recorded as a named month in the Day composer. 803fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // A word recognizable as a time-zone is recorded as such, as is 813fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // '(+|-)(hhmm|hh:)'. 823fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Legacy dates don't allow extra signs ('+' or '-') or umatched ')' 833fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // after a number has been read (before the first number, any garbage 843fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // is allowed). 853fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Intersection of the two: 863fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // A string that matches both formats (e.g. 1970-01-01) will be 873fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // parsed as an ES5 date-time string - which means it will default 883fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // to UTC time-zone. That's unavoidable if following the ES5 893fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // specification. 903fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // After a valid "T" has been read while scanning an ES5 datetime string, 913fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // the input can no longer be a valid legacy date, since the "T" is a 923fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // garbage string after a number has been read. 933fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 943fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // First try getting as far as possible with as ES5 Date Time String. 953fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch DateToken next_unhandled_token = ParseES5DateTime(&scanner, &day, &time, &tz); 963fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (next_unhandled_token.IsInvalid()) return false; 973fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch bool has_read_number = !day.IsEmpty(); 983fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // If there's anything left, continue with the legacy parser. 993fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch for (DateToken token = next_unhandled_token; 1003fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch !token.IsEndOfInput(); 1013fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch token = scanner.Next()) { 1023fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (token.IsNumber()) { 1033fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch has_read_number = true; 1043fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int n = token.number(); 1053fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (scanner.SkipSymbol(':')) { 1063fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (scanner.SkipSymbol(':')) { 107a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // n + "::" 108a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (!time.IsEmpty()) return false; 109a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block time.Add(n); 110a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block time.Add(0); 111a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 112a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // n + ":" 113a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (!time.Add(n)) return false; 1143fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (scanner.Peek().IsSymbol('.')) scanner.Next(); 115a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1163fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else if (scanner.SkipSymbol('.') && time.IsExpecting(n)) { 1176ded16be15dd865a9b21ea304d5273c8be299c87Steve Block time.Add(n); 1183fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!scanner.Peek().IsNumber()) return false; 1193fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int n = ReadMilliseconds(scanner.Next()); 1203fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (n < 0) return false; 1216ded16be15dd865a9b21ea304d5273c8be299c87Steve Block time.AddFinal(n); 122a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else if (tz.IsExpecting(n)) { 123a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block tz.SetAbsoluteMinute(n); 124a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else if (time.IsExpecting(n)) { 125a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block time.AddFinal(n); 12659151504615d929945dc59db37bf1166937748c6Steve Block // Require end, white space, "Z", "+" or "-" immediately after 12759151504615d929945dc59db37bf1166937748c6Steve Block // finalizing time. 1283fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch DateToken peek = scanner.Peek(); 1293fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!peek.IsEndOfInput() && 1303fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch !peek.IsWhiteSpace() && 1313fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch !peek.IsKeywordZ() && 1323fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch !peek.IsAsciiSign()) return false; 133a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 134a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (!day.Add(n)) return false; 1353fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch scanner.SkipSymbol('-'); 136a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1373fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else if (token.IsKeyword()) { 138a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Parse a "word" (sequence of chars. >= 'A'). 1393fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch KeywordType type = token.keyword_type(); 1403fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int value = token.keyword_value(); 141a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (type == AM_PM && !time.IsEmpty()) { 1423fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch time.SetHourOffset(value); 143a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else if (type == MONTH_NAME) { 1443fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch day.SetNamedMonth(value); 1453fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch scanner.SkipSymbol('-'); 1463fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else if (type == TIME_ZONE_NAME && has_read_number) { 1473fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch tz.Set(value); 148a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 149a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Garbage words are illegal if a number has been read. 1503fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (has_read_number) return false; 151a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1523fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else if (token.IsAsciiSign() && (tz.IsUTC() || !time.IsEmpty())) { 153a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Parse UTC offset (only after UTC or time). 1543fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch tz.SetSign(token.ascii_sign()); 1553fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // The following number may be empty. 1563fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int n = 0; 1573fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (scanner.Peek().IsNumber()) { 1583fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch n = scanner.Next().number(); 1593fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 1603fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch has_read_number = true; 1613fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1623fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (scanner.Peek().IsSymbol(':')) { 163a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block tz.SetAbsoluteHour(n); 164a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block tz.SetAbsoluteMinute(kNone); 165a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 166a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block tz.SetAbsoluteHour(n / 100); 167a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block tz.SetAbsoluteMinute(n % 100); 168a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1693fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else if ((token.IsAsciiSign() || token.IsSymbol(')')) && 1703fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch has_read_number) { 171a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Extra sign or ')' is illegal if a number has been read. 172a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return false; 173a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 1743fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Ignore other characters and whitespace. 175a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 176a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1773fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 178a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return day.Write(out) && time.Write(out) && tz.Write(out); 179a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 180a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1813fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1823fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochtemplate<typename CharType> 1833fb3ca8c7ca439d408449a395897395c0faae8d1Ben MurdochDateParser::DateToken DateParser::DateStringTokenizer<CharType>::Scan() { 1843fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int pre_pos = in_->position(); 1853fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (in_->IsEnd()) return DateToken::EndOfInput(); 1863fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (in_->IsAsciiDigit()) { 1873fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int n = in_->ReadUnsignedNumeral(); 1883fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int length = in_->position() - pre_pos; 1893fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch return DateToken::Number(n, length); 1903fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 1913fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (in_->Skip(':')) return DateToken::Symbol(':'); 1923fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (in_->Skip('-')) return DateToken::Symbol('-'); 1933fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (in_->Skip('+')) return DateToken::Symbol('+'); 1943fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (in_->Skip('.')) return DateToken::Symbol('.'); 1953fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (in_->Skip(')')) return DateToken::Symbol(')'); 1963fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (in_->IsAsciiAlphaOrAbove()) { 1973fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch ASSERT(KeywordTable::kPrefixLength == 3); 1983fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch uint32_t buffer[3] = {0, 0, 0}; 1993fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int length = in_->ReadWord(buffer, 3); 2003fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int index = KeywordTable::Lookup(buffer, length); 2013fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch return DateToken::Keyword(KeywordTable::GetType(index), 2023fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch KeywordTable::GetValue(index), 2033fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch length); 2043fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 2053fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (in_->SkipWhiteSpace()) { 2063fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch return DateToken::WhiteSpace(in_->position() - pre_pos); 2073fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 2083fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (in_->SkipParentheses()) { 2093fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch return DateToken::Unknown(); 2103fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 2113fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch in_->Next(); 2123fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch return DateToken::Unknown(); 2133fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 2143fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 2153fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 2163fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochtemplate <typename Char> 2173fb3ca8c7ca439d408449a395897395c0faae8d1Ben MurdochDateParser::DateToken DateParser::ParseES5DateTime( 2183fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch DateStringTokenizer<Char>* scanner, 2193fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch DayComposer* day, 2203fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch TimeComposer* time, 2213fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch TimeZoneComposer* tz) { 2223fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch ASSERT(day->IsEmpty()); 2233fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch ASSERT(time->IsEmpty()); 2243fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch ASSERT(tz->IsEmpty()); 2253fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 2263fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Parse mandatory date string: [('-'|'+')yy]yyyy[':'MM[':'DD]] 2273fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (scanner->Peek().IsAsciiSign()) { 2283fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Keep the sign token, so we can pass it back to the legacy 2293fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // parser if we don't use it. 2303fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch DateToken sign_token = scanner->Next(); 2313fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!scanner->Peek().IsFixedLengthNumber(6)) return sign_token; 2323fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int sign = sign_token.ascii_sign(); 2333fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int year = scanner->Next().number(); 2343fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (sign < 0 && year == 0) return sign_token; 2353fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch day->Add(sign * year); 2363fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else if (scanner->Peek().IsFixedLengthNumber(4)) { 2373fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch day->Add(scanner->Next().number()); 2383fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else { 2393fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch return scanner->Next(); 2403fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 2413fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (scanner->SkipSymbol('-')) { 2423fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!scanner->Peek().IsFixedLengthNumber(2) || 2433fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch !DayComposer::IsMonth(scanner->Peek().number())) return scanner->Next(); 2443fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch day->Add(scanner->Next().number()); 2453fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (scanner->SkipSymbol('-')) { 2463fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!scanner->Peek().IsFixedLengthNumber(2) || 2473fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch !DayComposer::IsDay(scanner->Peek().number())) return scanner->Next(); 2483fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch day->Add(scanner->Next().number()); 2493fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 2503fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 2513fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Check for optional time string: 'T'HH':'mm[':'ss['.'sss]]Z 2523fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!scanner->Peek().IsKeywordType(TIME_SEPARATOR)) { 2533fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!scanner->Peek().IsEndOfInput()) return scanner->Next(); 2543fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else { 2553fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // ES5 Date Time String time part is present. 2563fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch scanner->Next(); 2573fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!scanner->Peek().IsFixedLengthNumber(2) || 2583fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch !Between(scanner->Peek().number(), 0, 24)) { 2593fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch return DateToken::Invalid(); 2603fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 2613fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Allow 24:00[:00[.000]], but no other time starting with 24. 2623fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch bool hour_is_24 = (scanner->Peek().number() == 24); 2633fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch time->Add(scanner->Next().number()); 2643fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!scanner->SkipSymbol(':')) return DateToken::Invalid(); 2653fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!scanner->Peek().IsFixedLengthNumber(2) || 2663fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch !TimeComposer::IsMinute(scanner->Peek().number()) || 2673fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch (hour_is_24 && scanner->Peek().number() > 0)) { 2683fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch return DateToken::Invalid(); 2693fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 2703fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch time->Add(scanner->Next().number()); 2713fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (scanner->SkipSymbol(':')) { 2723fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!scanner->Peek().IsFixedLengthNumber(2) || 2733fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch !TimeComposer::IsSecond(scanner->Peek().number()) || 2743fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch (hour_is_24 && scanner->Peek().number() > 0)) { 2753fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch return DateToken::Invalid(); 2763fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 2773fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch time->Add(scanner->Next().number()); 2783fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (scanner->SkipSymbol('.')) { 2793fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!scanner->Peek().IsNumber() || 2803fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch (hour_is_24 && scanner->Peek().number() > 0)) { 2813fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch return DateToken::Invalid(); 2823fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 2833fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Allow more or less than the mandated three digits. 2843fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch time->Add(ReadMilliseconds(scanner->Next())); 2853fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 2863fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 2873fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Check for optional timezone designation: 'Z' | ('+'|'-')hh':'mm 2883fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (scanner->Peek().IsKeywordZ()) { 2893fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch scanner->Next(); 2903fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch tz->Set(0); 2913fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else if (scanner->Peek().IsSymbol('+') || 2923fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch scanner->Peek().IsSymbol('-')) { 2933fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch tz->SetSign(scanner->Next().symbol() == '+' ? 1 : -1); 2943fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (scanner->Peek().IsFixedLengthNumber(4)) { 2953fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // hhmm extension syntax. 2963fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int hourmin = scanner->Next().number(); 2973fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int hour = hourmin / 100; 2983fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int min = hourmin % 100; 2993fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!TimeComposer::IsHour(hour) || !TimeComposer::IsMinute(min)) { 3003fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch return DateToken::Invalid(); 3013fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 3023fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch tz->SetAbsoluteHour(hour); 3033fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch tz->SetAbsoluteMinute(min); 3043fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else { 3053fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // hh:mm standard syntax. 3063fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!scanner->Peek().IsFixedLengthNumber(2) || 3073fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch !TimeComposer::IsHour(scanner->Peek().number())) { 3083fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch return DateToken::Invalid(); 3093fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 3103fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch tz->SetAbsoluteHour(scanner->Next().number()); 3113fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!scanner->SkipSymbol(':')) return DateToken::Invalid(); 3123fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!scanner->Peek().IsFixedLengthNumber(2) || 3133fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch !TimeComposer::IsMinute(scanner->Peek().number())) { 3143fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch return DateToken::Invalid(); 3153fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 3163fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch tz->SetAbsoluteMinute(scanner->Next().number()); 3173fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 3183fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 3193fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!scanner->Peek().IsEndOfInput()) return DateToken::Invalid(); 3203fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 3213fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Successfully parsed ES5 Date Time String. Default to UTC if no TZ given. 3223fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (tz->IsEmpty()) tz->Set(0); 3233fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch day->set_iso_date(); 3243fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch return DateToken::EndOfInput(); 3253fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 3263fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3273fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 328a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} } // namespace v8::internal 329a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 330a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#endif // V8_DATEPARSER_INL_H_ 331