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1 // Copyright 2008 the V8 project authors. All rights reserved. | 1 // Copyright 2008 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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61 // Indicates a missing value. | 61 // Indicates a missing value. |
62 static const int kNone = kMaxInt; | 62 static const int kNone = kMaxInt; |
63 | 63 |
64 // InputReader provides basic string parsing and character classification. | 64 // InputReader provides basic string parsing and character classification. |
65 template <typename Char> | 65 template <typename Char> |
66 class InputReader BASE_EMBEDDED { | 66 class InputReader BASE_EMBEDDED { |
67 public: | 67 public: |
68 explicit InputReader(Vector<Char> s) | 68 explicit InputReader(Vector<Char> s) |
69 : index_(0), | 69 : index_(0), |
70 buffer_(s), | 70 buffer_(s), |
| 71 v8context_(v8_context()), |
71 has_read_number_(false) { | 72 has_read_number_(false) { |
72 Next(); | 73 Next(); |
73 } | 74 } |
74 | 75 |
75 // Advance to the next character of the string. | 76 // Advance to the next character of the string. |
76 void Next() { ch_ = (index_ < buffer_.length()) ? buffer_[index_++] : 0; } | 77 void Next() { ch_ = (index_ < buffer_.length()) ? buffer_[index_++] : 0; } |
77 | 78 |
78 // Read a string of digits as an unsigned number (cap just below kMaxInt). | 79 // Read a string of digits as an unsigned number (cap just below kMaxInt). |
79 int ReadUnsignedNumber() { | 80 int ReadUnsignedNumber() { |
80 has_read_number_ = true; | 81 has_read_number_ = true; |
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94 if (len < prefix_size) prefix[len] = GetAsciiAlphaLower(); | 95 if (len < prefix_size) prefix[len] = GetAsciiAlphaLower(); |
95 } | 96 } |
96 for (int i = len; i < prefix_size; i++) prefix[i] = 0; | 97 for (int i = len; i < prefix_size; i++) prefix[i] = 0; |
97 return len; | 98 return len; |
98 } | 99 } |
99 | 100 |
100 // The skip methods return whether they actually skipped something. | 101 // The skip methods return whether they actually skipped something. |
101 bool Skip(uint32_t c) { return ch_ == c ? (Next(), true) : false; } | 102 bool Skip(uint32_t c) { return ch_ == c ? (Next(), true) : false; } |
102 | 103 |
103 bool SkipWhiteSpace() { | 104 bool SkipWhiteSpace() { |
104 return Scanner::kIsWhiteSpace.get(ch_) ? (Next(), true) : false; | 105 return v8context_->scanner_data_. |
| 106 kIsWhiteSpace_.get(ch_) ? (Next(), true) : false; |
105 } | 107 } |
106 | 108 |
107 bool SkipParentheses() { | 109 bool SkipParentheses() { |
108 if (ch_ != '(') return false; | 110 if (ch_ != '(') return false; |
109 int balance = 0; | 111 int balance = 0; |
110 do { | 112 do { |
111 if (ch_ == ')') --balance; | 113 if (ch_ == ')') --balance; |
112 else if (ch_ == '(') ++balance; | 114 else if (ch_ == '(') ++balance; |
113 Next(); | 115 Next(); |
114 } while (balance > 0 && ch_); | 116 } while (balance > 0 && ch_); |
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127 | 129 |
128 // Indicates whether any (possibly empty!) numbers have been read. | 130 // Indicates whether any (possibly empty!) numbers have been read. |
129 bool HasReadNumber() const { return has_read_number_; } | 131 bool HasReadNumber() const { return has_read_number_; } |
130 | 132 |
131 private: | 133 private: |
132 // If current character is in 'A'-'Z' or 'a'-'z', return its lower-case. | 134 // If current character is in 'A'-'Z' or 'a'-'z', return its lower-case. |
133 // Else, return something outside of 'A'-'Z' and 'a'-'z'. | 135 // Else, return something outside of 'A'-'Z' and 'a'-'z'. |
134 uint32_t GetAsciiAlphaLower() const { return ch_ | 32; } | 136 uint32_t GetAsciiAlphaLower() const { return ch_ | 32; } |
135 | 137 |
136 int index_; | 138 int index_; |
| 139 V8Context* const v8context_; |
137 Vector<Char> buffer_; | 140 Vector<Char> buffer_; |
138 bool has_read_number_; | 141 bool has_read_number_; |
139 uint32_t ch_; | 142 uint32_t ch_; |
140 }; | 143 }; |
141 | 144 |
142 enum KeywordType { INVALID, MONTH_NAME, TIME_ZONE_NAME, AM_PM }; | 145 enum KeywordType { INVALID, MONTH_NAME, TIME_ZONE_NAME, AM_PM }; |
143 | 146 |
144 // KeywordTable maps names of months, time zones, am/pm to numbers. | 147 // KeywordTable maps names of months, time zones, am/pm to numbers. |
145 class KeywordTable : public AllStatic { | 148 class KeywordTable : public AllStatic { |
146 public: | 149 public: |
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231 int comp_[kSize]; | 234 int comp_[kSize]; |
232 int index_; | 235 int index_; |
233 int named_month_; | 236 int named_month_; |
234 }; | 237 }; |
235 }; | 238 }; |
236 | 239 |
237 | 240 |
238 } } // namespace v8::internal | 241 } } // namespace v8::internal |
239 | 242 |
240 #endif // V8_DATEPARSER_H_ | 243 #endif // V8_DATEPARSER_H_ |
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