public static bool TryParse(string input, out Version result)
{
VersionUtils.VersionResult result1 = new VersionUtils.VersionResult();
result1.Init("input", false);
bool version = VersionUtils.TryParseVersion(input, ref result1);
result = result1.m_parsedVersion;
return(version);
}
private static bool TryParseVersion(string version, ref VersionUtils.VersionResult result)
{
if (version == null)
{
result.SetFailure(VersionUtils.ParseFailureKind.ArgumentNullException);
return(false);
}
string[] strArray = version.Split(VersionUtils.SeparatorsArray);
int length = strArray.Length;
if (length < 2 || length > 4)
{
result.SetFailure(VersionUtils.ParseFailureKind.ArgumentException);
return(false);
}
int parsedComponent1;
int parsedComponent2;
if (!VersionUtils.TryParseComponent(strArray[0], "version", ref result, out parsedComponent1) ||
!VersionUtils.TryParseComponent(strArray[1], "version", ref result, out parsedComponent2))
{
return(false);
}
int num = length - 2;
if (num > 0)
{
int parsedComponent3;
if (!VersionUtils.TryParseComponent(strArray[2], "build", ref result, out parsedComponent3))
{
return(false);
}
if (num - 1 > 0)
{
int parsedComponent4;
if (!VersionUtils.TryParseComponent(strArray[3], "revision", ref result, out parsedComponent4))
{
return(false);
}
result.m_parsedVersion =
new Version(parsedComponent1, parsedComponent2, parsedComponent3, parsedComponent4);
}
else
{
result.m_parsedVersion = new Version(parsedComponent1, parsedComponent2, parsedComponent3);
}
}
else
{
result.m_parsedVersion = new Version(parsedComponent1, parsedComponent2);
}
return(true);
}
private static bool TryParseComponent(string component, string componentName,
ref VersionUtils.VersionResult result, out int parsedComponent)
{
if (!int.TryParse(component, NumberStyles.Integer, (IFormatProvider)CultureInfo.InvariantCulture,
out parsedComponent))
{
result.SetFailure(VersionUtils.ParseFailureKind.FormatException, component);
return(false);
}
if (parsedComponent >= 0)
{
return(true);
}
result.SetFailure(VersionUtils.ParseFailureKind.ArgumentOutOfRangeException, componentName);
return(false);
}
