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| 1 /* | |
| 2 * Copyright (C) 2003, 2006, 2008, 2009, 2010, 2012 Apple Inc. All rights | |
| 3 * reserved. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions | |
| 7 * are met: | |
| 8 * 1. Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer in the | |
| 12 * documentation and/or other materials provided with the distribution. | |
| 13 * | |
| 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
| 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 25 */ | |
| 26 | |
| 27 #include "wtf/text/CString.h" | |
| 28 | |
| 29 #include "wtf/ASCIICType.h" | |
| 30 #include "wtf/allocator/Partitions.h" | |
| 31 #include <string.h> | |
| 32 | |
| 33 using namespace std; | |
| 34 | |
| 35 namespace WTF { | |
| 36 | |
| 37 PassRefPtr<CStringImpl> CStringImpl::createUninitialized(size_t length, | |
| 38 char*& data) { | |
| 39 // TODO(esprehn): This doesn't account for the NUL. | |
| 40 RELEASE_ASSERT(length < | |
| 41 (numeric_limits<unsigned>::max() - sizeof(CStringImpl))); | |
| 42 | |
| 43 // The +1 is for the terminating NUL character. | |
| 44 size_t size = sizeof(CStringImpl) + length + 1; | |
| 45 CStringImpl* buffer = static_cast<CStringImpl*>( | |
| 46 Partitions::bufferMalloc(size, WTF_HEAP_PROFILER_TYPE_NAME(CStringImpl))); | |
| 47 data = reinterpret_cast<char*>(buffer + 1); | |
| 48 data[length] = '\0'; | |
| 49 return adoptRef(new (buffer) CStringImpl(length)); | |
| 50 } | |
| 51 | |
| 52 void CStringImpl::operator delete(void* ptr) { | |
| 53 Partitions::bufferFree(ptr); | |
| 54 } | |
| 55 | |
| 56 CString::CString(const char* chars, size_t length) { | |
| 57 if (!chars) { | |
| 58 DCHECK_EQ(length, 0u); | |
| 59 return; | |
| 60 } | |
| 61 char* data; | |
| 62 m_buffer = CStringImpl::createUninitialized(length, data); | |
| 63 memcpy(data, chars, length); | |
| 64 } | |
| 65 | |
| 66 bool CString::isSafeToSendToAnotherThread() const { | |
| 67 return !m_buffer || m_buffer->hasOneRef(); | |
| 68 } | |
| 69 | |
| 70 bool operator==(const CString& a, const CString& b) { | |
| 71 if (a.isNull() != b.isNull()) | |
| 72 return false; | |
| 73 if (a.length() != b.length()) | |
| 74 return false; | |
| 75 return !memcmp(a.data(), b.data(), a.length()); | |
| 76 } | |
| 77 | |
| 78 bool operator==(const CString& a, const char* b) { | |
| 79 if (a.isNull() != !b) | |
| 80 return false; | |
| 81 if (!b) | |
| 82 return true; | |
| 83 return !strcmp(a.data(), b); | |
| 84 } | |
| 85 | |
| 86 std::ostream& operator<<(std::ostream& ostream, const CString& string) { | |
| 87 if (string.isNull()) | |
| 88 return ostream << "<null>"; | |
| 89 | |
| 90 ostream << '"'; | |
| 91 for (size_t index = 0; index < string.length(); ++index) { | |
| 92 // Print shorthands for select cases. | |
| 93 char character = string.data()[index]; | |
| 94 switch (character) { | |
| 95 case '\t': | |
| 96 ostream << "\\t"; | |
| 97 break; | |
| 98 case '\n': | |
| 99 ostream << "\\n"; | |
| 100 break; | |
| 101 case '\r': | |
| 102 ostream << "\\r"; | |
| 103 break; | |
| 104 case '"': | |
| 105 ostream << "\\\""; | |
| 106 break; | |
| 107 case '\\': | |
| 108 ostream << "\\\\"; | |
| 109 break; | |
| 110 default: | |
| 111 if (isASCIIPrintable(character)) { | |
| 112 ostream << character; | |
| 113 } else { | |
| 114 // Print "\xHH" for control or non-ASCII characters. | |
| 115 ostream << "\\x"; | |
| 116 if (character >= 0 && character < 0x10) | |
| 117 ostream << "0"; | |
| 118 ostream.setf(std::ios_base::hex, std::ios_base::basefield); | |
| 119 ostream.setf(std::ios::uppercase); | |
| 120 ostream << (character & 0xff); | |
| 121 } | |
| 122 break; | |
| 123 } | |
| 124 } | |
| 125 return ostream << '"'; | |
| 126 } | |
| 127 | |
| 128 } // namespace WTF | |
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Chromium Code Reviews
Issue 2764243002:
Move files in wtf/ to platform/wtf/ (Part 9). (Closed)
