/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "wtf/testing/WTFTestHelpers.h"
#include "wtf/text/WTFString.h"
#include <ios> // NOLINT
#include <ostream> // NOLINT
namespace WTF {
std::ostream& operator<<(std::ostream& out, const String& string)
{
if (string.isNull())
return out << "<null>";
out << '"';
for (unsigned index = 0; index < string.length(); ++index) {
// Print shorthands for select cases.
UChar character = string[index];
switch (character) {
case '\t':
out << "\\t";
break;
case '\n':
out << "\\n";
break;
case '\r':
out << "\\r";
break;
case '"':
out << "\\\"";
break;
case '\\':
out << "\\\\";
break;
default:
if (character >= 0x20 && character < 0x7F) {
out << static_cast<char>(character);
} else {
// Print "\uXXXX" for control or non-ASCII characters.
out << "\\u";
out.width(4);
out.fill('0');
out.setf(std::ios_base::hex, std::ios_base::basefield);
out.setf(std::ios::uppercase);
out << character;
}
break;
}
}
return out << '"';
}
} // namespace WTF