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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/ostreams.h" | 5 #include "src/ostreams.h" |
6 #include "src/objects.h" | |
7 | 6 |
8 #if V8_OS_WIN | 7 #if V8_OS_WIN |
9 #if _MSC_VER < 1900 | 8 #if _MSC_VER < 1900 |
10 #define snprintf sprintf_s | 9 #define snprintf sprintf_s |
11 #endif | 10 #endif |
12 #endif | 11 #endif |
13 | 12 |
14 namespace v8 { | 13 namespace v8 { |
15 namespace internal { | 14 namespace internal { |
16 | 15 |
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54 bool IsOK(uint16_t c) { return (IsPrint(c) || IsSpace(c)) && c != '\\'; } | 53 bool IsOK(uint16_t c) { return (IsPrint(c) || IsSpace(c)) && c != '\\'; } |
55 | 54 |
56 | 55 |
57 std::ostream& PrintUC16(std::ostream& os, uint16_t c, bool (*pred)(uint16_t)) { | 56 std::ostream& PrintUC16(std::ostream& os, uint16_t c, bool (*pred)(uint16_t)) { |
58 char buf[10]; | 57 char buf[10]; |
59 const char* format = pred(c) ? "%c" : (c <= 0xff) ? "\\x%02x" : "\\u%04x"; | 58 const char* format = pred(c) ? "%c" : (c <= 0xff) ? "\\x%02x" : "\\u%04x"; |
60 snprintf(buf, sizeof(buf), format, c); | 59 snprintf(buf, sizeof(buf), format, c); |
61 return os << buf; | 60 return os << buf; |
62 } | 61 } |
63 | 62 |
64 | |
65 std::ostream& PrintUC32(std::ostream& os, int32_t c, bool (*pred)(uint16_t)) { | |
66 if (c <= String::kMaxUtf16CodeUnit) { | |
67 return PrintUC16(os, static_cast<uint16_t>(c), pred); | |
68 } | |
69 char buf[13]; | |
70 snprintf(buf, sizeof(buf), "\\u{%06x}", c); | |
71 return os << buf; | |
72 } | |
73 | |
74 } // namespace | 63 } // namespace |
75 | 64 |
76 | 65 |
77 std::ostream& operator<<(std::ostream& os, const AsReversiblyEscapedUC16& c) { | 66 std::ostream& operator<<(std::ostream& os, const AsReversiblyEscapedUC16& c) { |
78 return PrintUC16(os, c.value, IsOK); | 67 return PrintUC16(os, c.value, IsOK); |
79 } | 68 } |
80 | 69 |
81 | 70 |
82 std::ostream& operator<<(std::ostream& os, const AsEscapedUC16ForJSON& c) { | 71 std::ostream& operator<<(std::ostream& os, const AsEscapedUC16ForJSON& c) { |
83 if (c.value == '\n') return os << "\\n"; | 72 if (c.value == '\n') return os << "\\n"; |
84 if (c.value == '\r') return os << "\\r"; | 73 if (c.value == '\r') return os << "\\r"; |
85 if (c.value == '\t') return os << "\\t"; | 74 if (c.value == '\t') return os << "\\t"; |
86 if (c.value == '\"') return os << "\\\""; | 75 if (c.value == '\"') return os << "\\\""; |
87 return PrintUC16(os, c.value, IsOK); | 76 return PrintUC16(os, c.value, IsOK); |
88 } | 77 } |
89 | 78 |
90 | 79 |
91 std::ostream& operator<<(std::ostream& os, const AsUC16& c) { | 80 std::ostream& operator<<(std::ostream& os, const AsUC16& c) { |
92 return PrintUC16(os, c.value, IsPrint); | 81 return PrintUC16(os, c.value, IsPrint); |
93 } | 82 } |
94 | 83 |
95 | |
96 std::ostream& operator<<(std::ostream& os, const AsUC32& c) { | |
97 return PrintUC32(os, c.value, IsPrint); | |
98 } | |
99 | |
100 } // namespace internal | 84 } // namespace internal |
101 } // namespace v8 | 85 } // namespace v8 |
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