1 // Copyright 2008 the V8 project authors. All rights reserved.
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3 // modification, are permitted provided that the following conditions are
4 // met:
5 //
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27
28 #ifndef V8_DATEPARSER_INL_H_
29 #define V8_DATEPARSER_INL_H_
30
31 #include "dateparser.h"
32
33 namespace v8 {
34 namespace internal {
35
36 template <typename Char>
Parse(Vector<Char> str,FixedArray * out)37 bool DateParser::Parse(Vector<Char> str, FixedArray* out) {
38 ASSERT(out->length() >= OUTPUT_SIZE);
39 InputReader<Char> in(str);
40 TimeZoneComposer tz;
41 TimeComposer time;
42 DayComposer day;
43
44 while (!in.IsEnd()) {
45 if (in.IsAsciiDigit()) {
46 // Parse a number (possibly with 1 or 2 trailing colons).
47 int n = in.ReadUnsignedNumber();
48 if (in.Skip(':')) {
49 if (in.Skip(':')) {
50 // n + "::"
51 if (!time.IsEmpty()) return false;
52 time.Add(n);
53 time.Add(0);
54 } else {
55 // n + ":"
56 if (!time.Add(n)) return false;
57 }
58 } else if (tz.IsExpecting(n)) {
59 tz.SetAbsoluteMinute(n);
60 } else if (time.IsExpecting(n)) {
61 time.AddFinal(n);
62 // Require end or white space immediately after finalizing time.
63 if (!in.IsEnd() && !in.SkipWhiteSpace()) return false;
64 } else {
65 if (!day.Add(n)) return false;
66 in.Skip('-'); // Ignore suffix '-' for year, month, or day.
67 }
68 } else if (in.IsAsciiAlphaOrAbove()) {
69 // Parse a "word" (sequence of chars. >= 'A').
70 uint32_t pre[KeywordTable::kPrefixLength];
71 int len = in.ReadWord(pre, KeywordTable::kPrefixLength);
72 int index = KeywordTable::Lookup(pre, len);
73 KeywordType type = KeywordTable::GetType(index);
74
75 if (type == AM_PM && !time.IsEmpty()) {
76 time.SetHourOffset(KeywordTable::GetValue(index));
77 } else if (type == MONTH_NAME) {
78 day.SetNamedMonth(KeywordTable::GetValue(index));
79 in.Skip('-'); // Ignore suffix '-' for month names
80 } else if (type == TIME_ZONE_NAME && in.HasReadNumber()) {
81 tz.Set(KeywordTable::GetValue(index));
82 } else {
83 // Garbage words are illegal if a number has been read.
84 if (in.HasReadNumber()) return false;
85 }
86 } else if (in.IsAsciiSign() && (tz.IsUTC() || !time.IsEmpty())) {
87 // Parse UTC offset (only after UTC or time).
88 tz.SetSign(in.GetAsciiSignValue());
89 in.Next();
90 int n = in.ReadUnsignedNumber();
91 if (in.Skip(':')) {
92 tz.SetAbsoluteHour(n);
93 tz.SetAbsoluteMinute(kNone);
94 } else {
95 tz.SetAbsoluteHour(n / 100);
96 tz.SetAbsoluteMinute(n % 100);
97 }
98 } else if (in.Is('(')) {
99 // Ignore anything from '(' to a matching ')' or end of string.
100 in.SkipParentheses();
101 } else if ((in.IsAsciiSign() || in.Is(')')) && in.HasReadNumber()) {
102 // Extra sign or ')' is illegal if a number has been read.
103 return false;
104 } else {
105 // Ignore other characters.
106 in.Next();
107 }
108 }
109 return day.Write(out) && time.Write(out) && tz.Write(out);
110 }
111
112 } } // namespace v8::internal
113
114 #endif // V8_DATEPARSER_INL_H_
115