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o3de/Code/CryEngine/CrySystem/Serialization/Token.h

90 lines
2.5 KiB
C++

/*
* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
* its licensors.
*
* For complete copyright and license terms please see the LICENSE at the root of this
* distribution (the "License"). All use of this software is governed by the License,
* or, if provided, by the license below or the license accompanying this file. Do not
* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*
*/
// Original file Copyright Crytek GMBH or its affiliates, used under license.
#pragma once
#include <string.h>
#include "Serialization/Strings.h"
namespace Serialization {
struct Token
{
Token(const char* _str = 0)
: start(_str)
, end(_str ? _str + strlen(_str) : 0)
{
}
Token(const char* _str, size_t _len)
: start(_str)
, end(_str + _len) {}
Token(const char* _start, const char* _end)
: start(_start)
, end(_end) {}
void set(const char* _start, const char* _end) { start = _start; end = _end; }
std::size_t length() const{ return end - start; }
bool operator==(const Token& rhs) const
{
if (length() != rhs.length())
{
return false;
}
return memcmp(start, rhs.start, length()) == 0;
}
bool operator==(const string& rhs) const
{
if (length() != rhs.size())
{
return false;
}
return memcmp(start, rhs.c_str(), length()) == 0;
}
bool operator==(const char* text) const
{
if (strncmp(text, start, length()) == 0)
{
return text[length()] == '\0';
}
return false;
}
bool operator!=(const char* text) const
{
if (strncmp(text, start, length()) == 0)
{
return text[length()] != '\0';
}
return true;
}
bool operator==(char c) const
{
return length() == 1 && *start == c;
}
bool operator!=(char c) const
{
return length() != 1 || *start != c;
}
operator bool() const{
return start != end;
}
string str() const{ return string(start, end); }
const char* start;
const char* end;
};
}