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Diffstat (limited to 'src/3rdparty/v8/src/dateparser-inl.h')
-rw-r--r-- | src/3rdparty/v8/src/dateparser-inl.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/src/3rdparty/v8/src/dateparser-inl.h b/src/3rdparty/v8/src/dateparser-inl.h new file mode 100644 index 0000000..ac28c62 --- /dev/null +++ b/src/3rdparty/v8/src/dateparser-inl.h @@ -0,0 +1,125 @@ +// Copyright 2008 the V8 project authors. All rights reserved. +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following +// disclaimer in the documentation and/or other materials provided +// with the distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived +// from this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifndef V8_DATEPARSER_INL_H_ +#define V8_DATEPARSER_INL_H_ + +#include "dateparser.h" + +namespace v8 { +namespace internal { + +template <typename Char> +bool DateParser::Parse(Vector<Char> str, FixedArray* out) { + ASSERT(out->length() >= OUTPUT_SIZE); + InputReader<Char> in(str); + TimeZoneComposer tz; + TimeComposer time; + DayComposer day; + + while (!in.IsEnd()) { + if (in.IsAsciiDigit()) { + // Parse a number (possibly with 1 or 2 trailing colons). + int n = in.ReadUnsignedNumber(); + if (in.Skip(':')) { + if (in.Skip(':')) { + // n + "::" + if (!time.IsEmpty()) return false; + time.Add(n); + time.Add(0); + } else { + // n + ":" + if (!time.Add(n)) return false; + in.Skip('.'); + } + } else if (in.Skip('.') && time.IsExpecting(n)) { + time.Add(n); + if (!in.IsAsciiDigit()) return false; + int n = in.ReadMilliseconds(); + time.AddFinal(n); + } else if (tz.IsExpecting(n)) { + tz.SetAbsoluteMinute(n); + } else if (time.IsExpecting(n)) { + time.AddFinal(n); + // Require end, white space, "Z", "+" or "-" immediately after + // finalizing time. + if (!in.IsEnd() && !in.SkipWhiteSpace() && !in.Is('Z') && + !in.IsAsciiSign()) return false; + } else { + if (!day.Add(n)) return false; + in.Skip('-'); // Ignore suffix '-' for year, month, or day. + // Skip trailing 'T' for ECMAScript 5 date string format but make + // sure that it is followed by a digit (for the time). + if (in.Skip('T') && !in.IsAsciiDigit()) return false; + } + } else if (in.IsAsciiAlphaOrAbove()) { + // Parse a "word" (sequence of chars. >= 'A'). + uint32_t pre[KeywordTable::kPrefixLength]; + int len = in.ReadWord(pre, KeywordTable::kPrefixLength); + int index = KeywordTable::Lookup(pre, len); + KeywordType type = KeywordTable::GetType(index); + + if (type == AM_PM && !time.IsEmpty()) { + time.SetHourOffset(KeywordTable::GetValue(index)); + } else if (type == MONTH_NAME) { + day.SetNamedMonth(KeywordTable::GetValue(index)); + in.Skip('-'); // Ignore suffix '-' for month names + } else if (type == TIME_ZONE_NAME && in.HasReadNumber()) { + tz.Set(KeywordTable::GetValue(index)); + } else { + // Garbage words are illegal if a number has been read. + if (in.HasReadNumber()) return false; + } + } else if (in.IsAsciiSign() && (tz.IsUTC() || !time.IsEmpty())) { + // Parse UTC offset (only after UTC or time). + tz.SetSign(in.GetAsciiSignValue()); + in.Next(); + int n = in.ReadUnsignedNumber(); + if (in.Skip(':')) { + tz.SetAbsoluteHour(n); + tz.SetAbsoluteMinute(kNone); + } else { + tz.SetAbsoluteHour(n / 100); + tz.SetAbsoluteMinute(n % 100); + } + } else if (in.Is('(')) { + // Ignore anything from '(' to a matching ')' or end of string. + in.SkipParentheses(); + } else if ((in.IsAsciiSign() || in.Is(')')) && in.HasReadNumber()) { + // Extra sign or ')' is illegal if a number has been read. + return false; + } else { + // Ignore other characters. + in.Next(); + } + } + return day.Write(out) && time.Write(out) && tz.Write(out); +} + +} } // namespace v8::internal + +#endif // V8_DATEPARSER_INL_H_ |