ParseVersion()

static Version System.Version.ParseVersion ( ReadOnlySpan< char > input, bool throwOnFailure )

inlinestaticprivate

Definition at line 339 of file Version.cs.

    {
        int num = input.IndexOf('.');
        if (num < 0)
        {
            if (throwOnFailure)
            {
                throw new ArgumentException(SR.Arg_VersionString, "input");
            }
            return null;
        }
        int num2 = -1;
        int num3 = input.Slice(num + 1).IndexOf('.');
        if (num3 != -1)
        {
            num3 += num + 1;
            num2 = input.Slice(num3 + 1).IndexOf('.');
            if (num2 != -1)
            {
                num2 += num3 + 1;
                if (input.Slice(num2 + 1).Contains('.'))
                {
                    if (throwOnFailure)
                    {
                        throw new ArgumentException(SR.Arg_VersionString, "input");
                    }
                    return null;
                }
            }
        }
        if (!TryParseComponent(input.Slice(0, num), "input", throwOnFailure, out var parsedComponent))
        {
            return null;
        }
        int parsedComponent2;
        if (num3 != -1)
        {
            if (!TryParseComponent(input.Slice(num + 1, num3 - num - 1), "input", throwOnFailure, out parsedComponent2))
            {
                return null;
            }
            int parsedComponent3;
            if (num2 != -1)
            {
                if (!TryParseComponent(input.Slice(num3 + 1, num2 - num3 - 1), "build", throwOnFailure, out parsedComponent3) || !TryParseComponent(input.Slice(num2 + 1), "revision", throwOnFailure, out var parsedComponent4))
                {
                    return null;
                }
                return new Version(parsedComponent, parsedComponent2, parsedComponent3, parsedComponent4);
            }
            if (!TryParseComponent(input.Slice(num3 + 1), "build", throwOnFailure, out parsedComponent3))
            {
                return null;
            }
            return new Version(parsedComponent, parsedComponent2, parsedComponent3);
        }
        if (!TryParseComponent(input.Slice(num + 1), "input", throwOnFailure, out parsedComponent2))
        {
            return null;
        }
        return new Version(parsedComponent, parsedComponent2);
    }

References System.Version.Version(), System.SR.Arg_VersionString, System.input, and System.Version.TryParseComponent().

Referenced by System.Version.Parse(), System.Version.Parse(), System.Version.TryParse(), and System.Version.TryParse().