third_party/WebKit/Source/platform/exported/WebCString.cpp

   1 /*
   2  * Copyright (C) 2009 Google Inc. All rights reserved.
   3  * Copyright (C) 2012 Apple Inc. All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met:
   8  *
   9  *     * Redistributions of source code must retain the above copyright
  10  * notice, this list of conditions and the following disclaimer.
  11  *     * Redistributions in binary form must reproduce the above
  12  * copyright notice, this list of conditions and the following disclaimer
  13  * in the documentation and/or other materials provided with the
  14  * distribution.
  15  *     * Neither the name of Google Inc. nor the names of its
  16  * contributors may be used to endorse or promote products derived from
  17  * this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include "config.h"
  33 #include "public/platform/WebCString.h"
  34
  35 #include "public/platform/WebString.h"
  36 #include "wtf/text/CString.h"
  37 #include <string.h>
  38
  39 namespace blink {
  40
  41 int WebCString::compare(const WebCString& other) const
  42 {
  43     // A null string is always less than a non null one.
  44     if (isNull() != other.isNull())
  45         return isNull() ? -1 : 1;
  46
  47     if (isNull())
  48         return 0; // Both WebStrings are null.
  49
  50     return strcmp(m_private->data(), other.m_private->data());
  51 }
  52
  53 void WebCString::reset()
  54 {
  55     m_private.reset();
  56 }
  57
  58 void WebCString::assign(const WebCString& other)
  59 {
  60     assign(other.m_private.get());
  61 }
  62
  63 void WebCString::assign(const char* data, size_t length)
  64 {
  65     char* newData;
  66     RefPtr<WTF::CStringBuffer> buffer =
  67         WTF::CString::newUninitialized(length, newData).buffer();
  68     memcpy(newData, data, length);
  69     assign(buffer.get());
  70 }
  71
  72 size_t WebCString::length() const
  73 {
  74     return m_private.isNull() ? 0 : m_private->length();
  75 }
  76
  77 const char* WebCString::data() const
  78 {
  79     return m_private.isNull() ? 0 : m_private->data();
  80 }
  81
  82 WebString WebCString::utf16() const
  83 {
  84     return WebString::fromUTF8(data(), length());
  85 }
  86
  87 WebCString::WebCString(const WTF::CString& s)
  88 {
  89     assign(s.buffer());
  90 }
  91
  92 WebCString& WebCString::operator=(const WTF::CString& s)
  93 {
  94     assign(s.buffer());
  95     return *this;
  96 }
  97
  98 WebCString::operator WTF::CString() const
  99 {
 100     return m_private.get();
 101 }
 102
 103 void WebCString::assign(WTF::CStringBuffer* p)
 104 {
 105     m_private = p;
 106 }
 107
 108 } // namespace blink