ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 1 | // Copyright 2011 the V8 project authors. All rights reserved. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | #ifndef V8_DATEPARSER_H_ |
| 29 | #define V8_DATEPARSER_H_ |
| 30 | |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 31 | #include "allocation.h" |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 32 | #include "char-predicates-inl.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 33 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 34 | namespace v8 { |
| 35 | namespace internal { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 36 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 37 | class DateParser : public AllStatic { |
| 38 | public: |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 39 | // Parse the string as a date. If parsing succeeds, return true after |
| 40 | // filling out the output array as follows (all integers are Smis): |
| 41 | // [0]: year |
| 42 | // [1]: month (0 = Jan, 1 = Feb, ...) |
| 43 | // [2]: day |
| 44 | // [3]: hour |
| 45 | // [4]: minute |
| 46 | // [5]: second |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 47 | // [6]: millisecond |
| 48 | // [7]: UTC offset in seconds, or null value if no timezone specified |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 49 | // If parsing fails, return false (content of output array is not defined). |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 50 | template <typename Char> |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 51 | static bool Parse(Vector<Char> str, FixedArray* output, UnicodeCache* cache); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 52 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 53 | enum { |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 54 | YEAR, MONTH, DAY, HOUR, MINUTE, SECOND, MILLISECOND, UTC_OFFSET, OUTPUT_SIZE |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 55 | }; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 56 | |
| 57 | private: |
| 58 | // Range testing |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 59 | static inline bool Between(int x, int lo, int hi) { |
| 60 | return static_cast<unsigned>(x - lo) <= static_cast<unsigned>(hi - lo); |
| 61 | } |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 62 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 63 | // Indicates a missing value. |
| 64 | static const int kNone = kMaxInt; |
| 65 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 66 | // Maximal number of digits used to build the value of a numeral. |
| 67 | // Remaining digits are ignored. |
| 68 | static const int kMaxSignificantDigits = 9; |
| 69 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 70 | // InputReader provides basic string parsing and character classification. |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 71 | template <typename Char> |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 72 | class InputReader BASE_EMBEDDED { |
| 73 | public: |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 74 | InputReader(UnicodeCache* unicode_cache, Vector<Char> s) |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 75 | : index_(0), |
| 76 | buffer_(s), |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 77 | unicode_cache_(unicode_cache) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 78 | Next(); |
| 79 | } |
| 80 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 81 | int position() { return index_; } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 82 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 83 | // Advance to the next character of the string. |
| 84 | void Next() { |
| 85 | ch_ = (index_ < buffer_.length()) ? buffer_[index_] : 0; |
| 86 | index_++; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 87 | } |
| 88 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 89 | // Read a string of digits as an unsigned number. Cap value at |
| 90 | // kMaxSignificantDigits, but skip remaining digits if the numeral |
| 91 | // is longer. |
| 92 | int ReadUnsignedNumeral() { |
ager@chromium.org | beb2571 | 2010-11-29 08:02:25 +0000 | [diff] [blame] | 93 | int n = 0; |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 94 | int i = 0; |
| 95 | while (IsAsciiDigit()) { |
| 96 | if (i < kMaxSignificantDigits) n = n * 10 + ch_ - '0'; |
| 97 | i++; |
| 98 | Next(); |
ager@chromium.org | beb2571 | 2010-11-29 08:02:25 +0000 | [diff] [blame] | 99 | } |
| 100 | return n; |
| 101 | } |
| 102 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 103 | // Read a word (sequence of chars. >= 'A'), fill the given buffer with a |
| 104 | // lower-case prefix, and pad any remainder of the buffer with zeroes. |
| 105 | // Return word length. |
| 106 | int ReadWord(uint32_t* prefix, int prefix_size) { |
| 107 | int len; |
| 108 | for (len = 0; IsAsciiAlphaOrAbove(); Next(), len++) { |
kmillikin@chromium.org | 3cdd9e1 | 2010-09-06 11:39:48 +0000 | [diff] [blame] | 109 | if (len < prefix_size) prefix[len] = AsciiAlphaToLower(ch_); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 110 | } |
| 111 | for (int i = len; i < prefix_size; i++) prefix[i] = 0; |
| 112 | return len; |
| 113 | } |
| 114 | |
| 115 | // The skip methods return whether they actually skipped something. |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 116 | bool Skip(uint32_t c) { |
| 117 | if (ch_ == c) { |
| 118 | Next(); |
| 119 | return true; |
| 120 | } |
| 121 | return false; |
| 122 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 123 | |
| 124 | bool SkipWhiteSpace() { |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 125 | if (unicode_cache_->IsWhiteSpace(ch_)) { |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 126 | Next(); |
| 127 | return true; |
| 128 | } |
| 129 | return false; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 130 | } |
| 131 | |
| 132 | bool SkipParentheses() { |
| 133 | if (ch_ != '(') return false; |
| 134 | int balance = 0; |
| 135 | do { |
| 136 | if (ch_ == ')') --balance; |
| 137 | else if (ch_ == '(') ++balance; |
| 138 | Next(); |
| 139 | } while (balance > 0 && ch_); |
| 140 | return true; |
| 141 | } |
| 142 | |
| 143 | // Character testing/classification. Non-ASCII digits are not supported. |
| 144 | bool Is(uint32_t c) const { return ch_ == c; } |
| 145 | bool IsEnd() const { return ch_ == 0; } |
| 146 | bool IsAsciiDigit() const { return IsDecimalDigit(ch_); } |
| 147 | bool IsAsciiAlphaOrAbove() const { return ch_ >= 'A'; } |
| 148 | bool IsAsciiSign() const { return ch_ == '+' || ch_ == '-'; } |
| 149 | |
| 150 | // Return 1 for '+' and -1 for '-'. |
| 151 | int GetAsciiSignValue() const { return 44 - static_cast<int>(ch_); } |
| 152 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 153 | private: |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 154 | int index_; |
| 155 | Vector<Char> buffer_; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 156 | uint32_t ch_; |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 157 | UnicodeCache* unicode_cache_; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 158 | }; |
| 159 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 160 | enum KeywordType { |
| 161 | INVALID, MONTH_NAME, TIME_ZONE_NAME, TIME_SEPARATOR, AM_PM |
| 162 | }; |
| 163 | |
| 164 | struct DateToken { |
| 165 | public: |
| 166 | bool IsInvalid() { return tag_ == kInvalidTokenTag; } |
| 167 | bool IsUnknown() { return tag_ == kUnknownTokenTag; } |
| 168 | bool IsNumber() { return tag_ == kNumberTag; } |
| 169 | bool IsSymbol() { return tag_ == kSymbolTag; } |
| 170 | bool IsWhiteSpace() { return tag_ == kWhiteSpaceTag; } |
| 171 | bool IsEndOfInput() { return tag_ == kEndOfInputTag; } |
| 172 | bool IsKeyword() { return tag_ >= kKeywordTagStart; } |
| 173 | |
| 174 | int length() { return length_; } |
| 175 | |
| 176 | int number() { |
| 177 | ASSERT(IsNumber()); |
| 178 | return value_; |
| 179 | } |
| 180 | KeywordType keyword_type() { |
| 181 | ASSERT(IsKeyword()); |
| 182 | return static_cast<KeywordType>(tag_); |
| 183 | } |
| 184 | int keyword_value() { |
| 185 | ASSERT(IsKeyword()); |
| 186 | return value_; |
| 187 | } |
| 188 | char symbol() { |
| 189 | ASSERT(IsSymbol()); |
| 190 | return static_cast<char>(value_); |
| 191 | } |
| 192 | bool IsSymbol(char symbol) { |
| 193 | return IsSymbol() && this->symbol() == symbol; |
| 194 | } |
| 195 | bool IsKeywordType(KeywordType tag) { |
| 196 | return tag_ == tag; |
| 197 | } |
| 198 | bool IsFixedLengthNumber(int length) { |
| 199 | return IsNumber() && length_ == length; |
| 200 | } |
| 201 | bool IsAsciiSign() { |
| 202 | return tag_ == kSymbolTag && (value_ == '-' || value_ == '+'); |
| 203 | } |
| 204 | int ascii_sign() { |
| 205 | ASSERT(IsAsciiSign()); |
| 206 | return 44 - value_; |
| 207 | } |
| 208 | bool IsKeywordZ() { |
| 209 | return IsKeywordType(TIME_ZONE_NAME) && length_ == 1 && value_ == 0; |
| 210 | } |
| 211 | bool IsUnknown(int character) { |
| 212 | return IsUnknown() && value_ == character; |
| 213 | } |
| 214 | // Factory functions. |
| 215 | static DateToken Keyword(KeywordType tag, int value, int length) { |
| 216 | return DateToken(tag, length, value); |
| 217 | } |
| 218 | static DateToken Number(int value, int length) { |
| 219 | return DateToken(kNumberTag, length, value); |
| 220 | } |
| 221 | static DateToken Symbol(char symbol) { |
| 222 | return DateToken(kSymbolTag, 1, symbol); |
| 223 | } |
| 224 | static DateToken EndOfInput() { |
| 225 | return DateToken(kEndOfInputTag, 0, -1); |
| 226 | } |
| 227 | static DateToken WhiteSpace(int length) { |
| 228 | return DateToken(kWhiteSpaceTag, length, -1); |
| 229 | } |
| 230 | static DateToken Unknown() { |
| 231 | return DateToken(kUnknownTokenTag, 1, -1); |
| 232 | } |
| 233 | static DateToken Invalid() { |
| 234 | return DateToken(kInvalidTokenTag, 0, -1); |
| 235 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 236 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 237 | private: |
| 238 | enum TagType { |
| 239 | kInvalidTokenTag = -6, |
| 240 | kUnknownTokenTag = -5, |
| 241 | kWhiteSpaceTag = -4, |
| 242 | kNumberTag = -3, |
| 243 | kSymbolTag = -2, |
| 244 | kEndOfInputTag = -1, |
| 245 | kKeywordTagStart = 0 |
| 246 | }; |
| 247 | DateToken(int tag, int length, int value) |
| 248 | : tag_(tag), |
| 249 | length_(length), |
| 250 | value_(value) { } |
| 251 | |
| 252 | int tag_; |
| 253 | int length_; // Number of characters. |
| 254 | int value_; |
| 255 | }; |
| 256 | |
| 257 | template <typename Char> |
| 258 | class DateStringTokenizer { |
| 259 | public: |
| 260 | explicit DateStringTokenizer(InputReader<Char>* in) |
| 261 | : in_(in), next_(Scan()) { } |
| 262 | DateToken Next() { |
| 263 | DateToken result = next_; |
| 264 | next_ = Scan(); |
| 265 | return result; |
| 266 | } |
| 267 | |
| 268 | DateToken Peek() { |
| 269 | return next_; |
| 270 | } |
| 271 | bool SkipSymbol(char symbol) { |
| 272 | if (next_.IsSymbol(symbol)) { |
| 273 | next_ = Scan(); |
| 274 | return true; |
| 275 | } |
| 276 | return false; |
| 277 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 278 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 279 | private: |
| 280 | DateToken Scan(); |
| 281 | |
| 282 | InputReader<Char>* in_; |
| 283 | DateToken next_; |
| 284 | }; |
| 285 | |
| 286 | static int ReadMilliseconds(DateToken number); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 287 | |
| 288 | // KeywordTable maps names of months, time zones, am/pm to numbers. |
| 289 | class KeywordTable : public AllStatic { |
| 290 | public: |
| 291 | // Look up a word in the keyword table and return an index. |
| 292 | // 'pre' contains a prefix of the word, zero-padded to size kPrefixLength |
| 293 | // and 'len' is the word length. |
| 294 | static int Lookup(const uint32_t* pre, int len); |
| 295 | // Get the type of the keyword at index i. |
| 296 | static KeywordType GetType(int i) { |
| 297 | return static_cast<KeywordType>(array[i][kTypeOffset]); |
| 298 | } |
| 299 | // Get the value of the keyword at index i. |
| 300 | static int GetValue(int i) { return array[i][kValueOffset]; } |
| 301 | |
| 302 | static const int kPrefixLength = 3; |
| 303 | static const int kTypeOffset = kPrefixLength; |
| 304 | static const int kValueOffset = kTypeOffset + 1; |
| 305 | static const int kEntrySize = kValueOffset + 1; |
| 306 | static const int8_t array[][kEntrySize]; |
| 307 | }; |
| 308 | |
| 309 | class TimeZoneComposer BASE_EMBEDDED { |
| 310 | public: |
| 311 | TimeZoneComposer() : sign_(kNone), hour_(kNone), minute_(kNone) {} |
| 312 | void Set(int offset_in_hours) { |
| 313 | sign_ = offset_in_hours < 0 ? -1 : 1; |
| 314 | hour_ = offset_in_hours * sign_; |
| 315 | minute_ = 0; |
| 316 | } |
| 317 | void SetSign(int sign) { sign_ = sign < 0 ? -1 : 1; } |
| 318 | void SetAbsoluteHour(int hour) { hour_ = hour; } |
| 319 | void SetAbsoluteMinute(int minute) { minute_ = minute; } |
| 320 | bool IsExpecting(int n) const { |
| 321 | return hour_ != kNone && minute_ == kNone && TimeComposer::IsMinute(n); |
| 322 | } |
| 323 | bool IsUTC() const { return hour_ == 0 && minute_ == 0; } |
| 324 | bool Write(FixedArray* output); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 325 | bool IsEmpty() { return hour_ == kNone; } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 326 | private: |
| 327 | int sign_; |
| 328 | int hour_; |
| 329 | int minute_; |
| 330 | }; |
| 331 | |
| 332 | class TimeComposer BASE_EMBEDDED { |
| 333 | public: |
| 334 | TimeComposer() : index_(0), hour_offset_(kNone) {} |
| 335 | bool IsEmpty() const { return index_ == 0; } |
| 336 | bool IsExpecting(int n) const { |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 337 | return (index_ == 1 && IsMinute(n)) || |
| 338 | (index_ == 2 && IsSecond(n)) || |
| 339 | (index_ == 3 && IsMillisecond(n)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 340 | } |
| 341 | bool Add(int n) { |
| 342 | return index_ < kSize ? (comp_[index_++] = n, true) : false; |
| 343 | } |
| 344 | bool AddFinal(int n) { |
| 345 | if (!Add(n)) return false; |
| 346 | while (index_ < kSize) comp_[index_++] = 0; |
| 347 | return true; |
| 348 | } |
| 349 | void SetHourOffset(int n) { hour_offset_ = n; } |
| 350 | bool Write(FixedArray* output); |
| 351 | |
| 352 | static bool IsMinute(int x) { return Between(x, 0, 59); } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 353 | static bool IsHour(int x) { return Between(x, 0, 23); } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 354 | static bool IsSecond(int x) { return Between(x, 0, 59); } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 355 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 356 | private: |
| 357 | static bool IsHour12(int x) { return Between(x, 0, 12); } |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 358 | static bool IsMillisecond(int x) { return Between(x, 0, 999); } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 359 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 360 | static const int kSize = 4; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 361 | int comp_[kSize]; |
| 362 | int index_; |
| 363 | int hour_offset_; |
| 364 | }; |
| 365 | |
| 366 | class DayComposer BASE_EMBEDDED { |
| 367 | public: |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 368 | DayComposer() : index_(0), named_month_(kNone), is_iso_date_(false) {} |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 369 | bool IsEmpty() const { return index_ == 0; } |
| 370 | bool Add(int n) { |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 371 | if (index_ < kSize) { |
| 372 | comp_[index_] = n; |
| 373 | index_++; |
| 374 | return true; |
| 375 | } |
| 376 | return false; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 377 | } |
| 378 | void SetNamedMonth(int n) { named_month_ = n; } |
| 379 | bool Write(FixedArray* output); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 380 | void set_iso_date() { is_iso_date_ = true; } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 381 | static bool IsMonth(int x) { return Between(x, 1, 12); } |
| 382 | static bool IsDay(int x) { return Between(x, 1, 31); } |
| 383 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 384 | private: |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 385 | static const int kSize = 3; |
| 386 | int comp_[kSize]; |
| 387 | int index_; |
| 388 | int named_month_; |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 389 | // If set, ensures that data is always parsed in year-month-date order. |
| 390 | bool is_iso_date_; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 391 | }; |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 392 | |
| 393 | // Tries to parse an ES5 Date Time String. Returns the next token |
| 394 | // to continue with in the legacy date string parser. If parsing is |
| 395 | // complete, returns DateToken::EndOfInput(). If terminally unsuccessful, |
| 396 | // returns DateToken::Invalid(). Otherwise parsing continues in the |
| 397 | // legacy parser. |
| 398 | template <typename Char> |
| 399 | static DateParser::DateToken ParseES5DateTime( |
| 400 | DateStringTokenizer<Char>* scanner, |
| 401 | DayComposer* day, |
| 402 | TimeComposer* time, |
| 403 | TimeZoneComposer* tz); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 404 | }; |
| 405 | |
| 406 | |
| 407 | } } // namespace v8::internal |
| 408 | |
| 409 | #endif // V8_DATEPARSER_H_ |