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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef String16_h | |
6 #define String16_h | |
7 | |
8 //#include "Collections.h" | |
9 //#include "Platform.h" | |
10 #include "{{config.class_export.header}}" | |
11 | |
12 #include <vector> | |
13 | |
14 namespace blink { | |
15 namespace protocol { | |
16 | |
17 namespace internal { | |
18 {{config.class_export.macro}} void intToStr(int, char*, size_t); | |
19 {{config.class_export.macro}} void doubleToStr(double, char*, size_t); | |
20 {{config.class_export.macro}} void doubleToStr3(double, char*, size_t); | |
21 {{config.class_export.macro}} void doubleToStr6(double, char*, size_t); | |
22 {{config.class_export.macro}} double strToDouble(const char*, bool*); | |
23 {{config.class_export.macro}} int strToInt(const char*, bool*); | |
24 } // namespace internal | |
25 | |
26 template <typename T, typename C> | |
27 class {{config.class_export.macro}} String16Base { | |
28 public: | |
29 static bool isASCII(C c) | |
30 { | |
31 return !(c & ~0x7F); | |
32 } | |
33 | |
34 static bool isSpaceOrNewLine(C c) | |
35 { | |
36 return isASCII(c) && c <= ' ' && (c == ' ' || (c <= 0xD && c >= 0x9)); | |
37 } | |
38 | |
39 static T fromInteger(int number) | |
40 { | |
41 char buffer[50]; | |
42 internal::intToStr(number, buffer, PROTOCOL_ARRAY_LENGTH(buffer)); | |
43 return T(buffer); | |
44 } | |
45 | |
46 static T fromDouble(double number) | |
47 { | |
48 char buffer[100]; | |
49 internal::doubleToStr(number, buffer, PROTOCOL_ARRAY_LENGTH(buffer)); | |
50 return T(buffer); | |
51 } | |
52 | |
53 static T fromDoublePrecision3(double number) | |
54 { | |
55 char buffer[100]; | |
56 internal::doubleToStr3(number, buffer, PROTOCOL_ARRAY_LENGTH(buffer)); | |
57 return T(buffer); | |
58 } | |
59 | |
60 static T fromDoublePrecision6(double number) | |
61 { | |
62 char buffer[100]; | |
63 internal::doubleToStr6(number, buffer, PROTOCOL_ARRAY_LENGTH(buffer)); | |
64 return T(buffer); | |
65 } | |
66 | |
67 static double charactersToDouble(const C* characters, size_t length, bool* o
k = nullptr) | |
68 { | |
69 std::vector<char> buffer; | |
70 buffer.reserve(length + 1); | |
71 for (size_t i = 0; i < length; ++i) { | |
72 if (!isASCII(characters[i])) { | |
73 if (ok) | |
74 *ok = false; | |
75 return 0; | |
76 } | |
77 buffer.push_back(static_cast<char>(characters[i])); | |
78 } | |
79 buffer.push_back('\0'); | |
80 return internal::strToDouble(buffer.data(), ok); | |
81 } | |
82 | |
83 static int charactersToInteger(const C* characters, size_t length, bool* ok
= nullptr) | |
84 { | |
85 std::vector<char> buffer; | |
86 buffer.reserve(length + 1); | |
87 for (size_t i = 0; i < length; ++i) { | |
88 if (!isASCII(characters[i])) { | |
89 if (ok) | |
90 *ok = false; | |
91 return 0; | |
92 } | |
93 buffer.push_back(static_cast<char>(characters[i])); | |
94 } | |
95 buffer.push_back('\0'); | |
96 return internal::strToInt(buffer.data(), ok); | |
97 } | |
98 | |
99 double toDouble(bool* ok = nullptr) const | |
100 { | |
101 const C* characters = static_cast<const T&>(*this).characters16(); | |
102 size_t length = static_cast<const T&>(*this).length(); | |
103 return charactersToDouble(characters, length, ok); | |
104 } | |
105 | |
106 int toInteger(bool* ok = nullptr) const | |
107 { | |
108 const C* characters = static_cast<const T&>(*this).characters16(); | |
109 size_t length = static_cast<const T&>(*this).length(); | |
110 return charactersToInteger(characters, length, ok); | |
111 } | |
112 | |
113 T stripWhiteSpace() const | |
114 { | |
115 size_t length = static_cast<const T&>(*this).length(); | |
116 if (!length) | |
117 return T(); | |
118 | |
119 unsigned start = 0; | |
120 unsigned end = length - 1; | |
121 const C* characters = static_cast<const T&>(*this).characters16(); | |
122 | |
123 // skip white space from start | |
124 while (start <= end && isSpaceOrNewLine(characters[start])) | |
125 ++start; | |
126 | |
127 // only white space | |
128 if (start > end) | |
129 return T(); | |
130 | |
131 // skip white space from end | |
132 while (end && isSpaceOrNewLine(characters[end])) | |
133 --end; | |
134 | |
135 if (!start && end == length - 1) | |
136 return T(static_cast<const T&>(*this)); | |
137 return T(characters + start, end + 1 - start); | |
138 } | |
139 | |
140 bool startsWith(const char* prefix) const | |
141 { | |
142 const C* characters = static_cast<const T&>(*this).characters16(); | |
143 size_t length = static_cast<const T&>(*this).length(); | |
144 for (size_t i = 0, j = 0; prefix[j] && i < length; ++i, ++j) { | |
145 if (characters[i] != prefix[j]) | |
146 return false; | |
147 } | |
148 return true; | |
149 } | |
150 }; | |
151 | |
152 } // namespace protocol | |
153 } // namespace blink | |
154 | |
155 #include "{{config.lib.string16_header}}" | |
156 | |
157 namespace blink { | |
158 namespace protocol { | |
159 | |
160 class {{config.class_export.macro}} String16Builder { | |
161 public: | |
162 String16Builder(); | |
163 void append(const String16&); | |
164 void append(UChar); | |
165 void append(char); | |
166 void append(const UChar*, size_t); | |
167 void append(const char*, size_t); | |
168 String16 toString(); | |
169 void reserveCapacity(size_t); | |
170 | |
171 private: | |
172 std::vector<UChar> m_buffer; | |
173 }; | |
174 | |
175 } // namespace protocol | |
176 } // namespace blink | |
177 | |
178 using String16 = blink::protocol::String16; | |
179 using String16Builder = blink::protocol::String16Builder; | |
180 | |
181 #endif // !defined(String16_h) | |
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