c918bec9df
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1544 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
107 lines
4.3 KiB
C++
107 lines
4.3 KiB
C++
// Copyright 2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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namespace v8 { namespace internal {
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template <typename Char>
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bool DateParser::Parse(Vector<Char> str, FixedArray* out) {
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ASSERT(out->length() >= OUTPUT_SIZE);
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InputReader<Char> in(str);
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TimeZoneComposer tz;
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TimeComposer time;
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DayComposer day;
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while (!in.IsEnd()) {
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if (in.IsAsciiDigit()) {
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// Parse a number (possibly with 1 or 2 trailing colons).
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int n = in.ReadUnsignedNumber();
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if (in.Skip(':')) {
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if (in.Skip(':')) {
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// n + "::"
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if (!time.IsEmpty()) return false;
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time.Add(n);
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time.Add(0);
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} else {
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// n + ":"
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if (!time.Add(n)) return false;
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}
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} else if (tz.IsExpecting(n)) {
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tz.SetAbsoluteMinute(n);
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} else if (time.IsExpecting(n)) {
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time.AddFinal(n);
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// Require end or white space immediately after finalizing time.
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if (!in.IsEnd() && !in.SkipWhiteSpace()) return false;
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} else {
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if (!day.Add(n)) return false;
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in.Skip('-'); // Ignore suffix '-' for year, month, or day.
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}
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} else if (in.IsAsciiAlphaOrAbove()) {
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// Parse a "word" (sequence of chars. >= 'A').
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uint32_t pre[KeywordTable::kPrefixLength];
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int len = in.ReadWord(pre, KeywordTable::kPrefixLength);
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int index = KeywordTable::Lookup(pre, len);
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KeywordType type = KeywordTable::GetType(index);
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if (type == AM_PM && !time.IsEmpty()) {
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time.SetHourOffset(KeywordTable::GetValue(index));
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} else if (type == MONTH_NAME) {
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day.SetNamedMonth(KeywordTable::GetValue(index));
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in.Skip('-'); // Ignore suffix '-' for month names
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} else if (type == TIME_ZONE_NAME && in.HasReadNumber()) {
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tz.Set(KeywordTable::GetValue(index));
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} else {
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// Garbage words are illegal if a number has been read.
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if (in.HasReadNumber()) return false;
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}
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} else if (in.IsAsciiSign() && (tz.IsUTC() || !time.IsEmpty())) {
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// Parse UTC offset (only after UTC or time).
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tz.SetSign(in.GetAsciiSignValue());
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in.Next();
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int n = in.ReadUnsignedNumber();
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if (in.Skip(':')) {
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tz.SetAbsoluteHour(n);
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tz.SetAbsoluteMinute(kNone);
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} else {
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tz.SetAbsoluteHour(n / 100);
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tz.SetAbsoluteMinute(n % 100);
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}
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} else if (in.Is('(')) {
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// Ignore anything from '(' to a matching ')' or end of string.
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in.SkipParentheses();
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} else if ((in.IsAsciiSign() || in.Is(')')) && in.HasReadNumber()) {
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// Extra sign or ')' is illegal if a number has been read.
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return false;
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} else {
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// Ignore other characters.
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in.Next();
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}
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}
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return day.Write(out) && time.Write(out) && tz.Write(out);
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}
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} } // namespace v8::internal
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