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/*
* Copyright (C) 2007, 2011 Apple 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:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS 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 APPLE OR ITS 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 "FileSystem.h"
#include <wtf/HexNumber.h>
namespace WebCore {
// The following lower-ASCII characters need escaping to be used in a filename
// across all systems, including Windows:
// - Unprintable ASCII (00-1F)
// - Space (20)
// - Double quote (22)
// - Percent (25) (escaped because it is our escape character)
// - Asterisk (2A)
// - Slash (2F)
// - Colon (3A)
// - Less-than (3C)
// - Greater-than (3E)
// - Question Mark (3F)
// - Backslash (5C)
// - Pipe (7C)
// - Delete (7F)
static const bool needsEscaping[128] = {
/* 00-07 */ true, true, true, true, true, true, true, true,
/* 08-0F */ true, true, true, true, true, true, true, true,
/* 10-17 */ true, true, true, true, true, true, true, true,
/* 18-1F */ true, true, true, true, true, true, true, true,
/* 20-27 */ true, false, true, false, false, true, false, false,
/* 28-2F */ false, false, true, false, false, false, false, true,
/* 30-37 */ false, false, false, false, false, false, false, false,
/* 38-3F */ false, false, true, false, true, false, true, true,
/* 40-47 */ false, false, false, false, false, false, false, false,
/* 48-4F */ false, false, false, false, false, false, false, false,
/* 50-57 */ false, false, false, false, false, false, false, false,
/* 58-5F */ false, false, false, false, true, false, false, false,
/* 60-67 */ false, false, false, false, false, false, false, false,
/* 68-6F */ false, false, false, false, false, false, false, false,
/* 70-77 */ false, false, false, false, false, false, false, false,
/* 78-7F */ false, false, false, false, true, false, false, true,
};
static inline bool shouldEscapeUChar(UChar c)
{
return c > 127 ? false : needsEscaping[c];
}
String encodeForFileName(const String& inputStr)
{
unsigned length = inputStr.length();
Vector<UChar, 512> buffer(length * 3 + 1);
UChar* p = buffer.data();
const UChar* str = inputStr.characters();
const UChar* strEnd = str + length;
while (str < strEnd) {
UChar c = *str++;
if (shouldEscapeUChar(c)) {
*p++ = '%';
placeByteAsHex(c, p);
} else
*p++ = c;
}
ASSERT(p - buffer.data() <= static_cast<int>(buffer.size()));
return String(buffer.data(), p - buffer.data());
}
#if !PLATFORM(MAC)
bool canExcludeFromBackup()
{
return false;
}
bool excludeFromBackup(const String&)
{
return false;
}
#endif
} // namespace WebCore
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