peparser/versionstring.cpp at master · smarttechnologies/peparser · GitHub

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// Copyright (c) 2016 SMART Technologies. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.

#pragma warning(push)
#pragma warning(disable : 4996)
#include<boost/algorithm/string/split.hpp>
#include<boost/algorithm/string.hpp>
#pragma warning(pop)

#include"versionstring.h"

#include<sstream>
#include<vector>

namespacepeparser
{
VersionString::VersionString(const std::wstring& value)
	{
Reset(value);
	}

boolVersionString::Parse(const std::wstring& value)
	{
 m_valid = false;

 std::vector<std::wstring> versions;

try
 {
boost::split(versions, value, boost::is_any_of(L"."));

if (versions.size() == 4)
 {
 m_valid = true;
 m_major = std::stoi(versions[0]);
 m_minor = std::stoi(versions[1]);
 m_build = std::stoi(versions[2]);
 m_patch = std::stoi(versions[3]);
 }
 }
catch (std::exception&)
 {
 m_valid = false;
 }

return m_valid;
	}

	std::wstring VersionString::Combine()
	{
 std::wstringstream res;

 res << m_major << L"." << m_minor << L"." << m_build << L"." << m_patch;

return res.str();
	}

	VersionString& VersionString::operator=(const std::wstring& value)
	{
Reset(value);
return *this;
	}

voidVersionString::Reset(const std::wstring& value)
	{
Parse(value);

 m_fullUnformatted = value;
 m_fullFormatted = Combine();
	}

bool VersionString::operator<(const VersionString& vs) const
	{
if (!this->IsValid())
 {
if (!vs.IsValid()) // both are invalid, comparing strings
 {
returnthis->m_fullUnformatted < vs.m_fullUnformatted;
 }
returntrue; // Invalid string is less than valid
 }
else
 {
if (!vs.IsValid())
 {
returnfalse;	// Valid string is not less than invalid
 }
 }

if (m_major < vs.m_major)
 {
returntrue;
 }
if (m_major > vs.m_major)
 {
returnfalse;
 }
if (m_minor < vs.m_minor) // majors are equal
 {
returntrue;
 }
if (m_minor > vs.m_minor)
 {
returnfalse;
 }
if (m_build < vs.m_build) // minors are equal too
 {
returntrue;
 }
if (m_build > vs.m_build)
 {
returnfalse;
 }
if (m_patch < vs.m_patch) // builds are equal as well
 {
returntrue;
 }

returnfalse;
	}

bool VersionString::operator==(const VersionString& vs)const
	{
if (!this->IsValid())
 {
if (!vs.IsValid())
 {
returnthis->m_fullUnformatted == vs.m_fullUnformatted;
 }
returnfalse; // Invalid string is not equal to valid one
 }

if (!vs.IsValid())
 {
returnfalse;	// Valid string is not equal to invalid one
 }

return ((!(vs < *this)) && (!(*this < vs)));
	}

bool VersionString::operator>(const VersionString& vs)const
	{
if (!this->IsValid())
 {
if (!vs.IsValid())
 {
returnthis->m_fullUnformatted > vs.m_fullUnformatted;
 }
returnfalse; // Invalid string is not greater than valid one
 }

if (!vs.IsValid()) returntrue; // Valid string is greater than invalid one

return (vs < *this);
	}

	VersionString::operatorstd::wstring() const
	{
if (IsValid())
 {
return m_fullFormatted;
 }
else
 {
return m_fullUnformatted;
 }
	}

	std::wstring VersionString::FullFormattedForResources() const
	{
if (IsValid())
 {
 std::wstringstream res;

 res << m_major << L"." << m_minor << L"." << m_build << L"." << m_patch;

return res.str();
 }
else
return m_fullUnformatted;
	}
}