Antlr4

The following items apply to all users:

• The code generator supports grammar rules named keys and values (#280)
• The runtime library is now annotated with [Nullable] and [NotNull] in more places than before (#286)

This release candidate builds on the updated build support started in v4.6.5-beta001 and v4.6.5-beta002. The following changes are provided for "SDK" projects (the new project system for Visual Studio 2017 and the dotnet tool).

• Support for customized build properties is fixed (#279)

This preview release builds on the updated build support started in v4.6.5-beta001. The following changes are provided for "SDK" projects (the new project system for Visual Studio 2017 and the dotnet tool).

• Projects no longer require adding or configuring Antlr4 elements in a project. To disable this feature when updating, add the following property to your project file:

  <PropertyGroup>
    <EnableDefaultAntlrItems>False</EnableDefaultAntlrItems>
  </PropertyGroup>

  🔗 See tunnelvisionlabs/antlr-integration-tests-csharp@388a34f for an example of how this upgrade simplifies project files.

• The Properties window in Visual Studio 2017 will once again allow users to configure code generation for grammars. Unlike previous releases, no separate extension is required.

• The build tooling using the C# code generator now works on non-Windows systems, fully eliminating the last remaining Java dependency.

This preview release packages the new C# port of the ANTLR 4 code generation tool. This feature completely eliminates the compile-time dependency on Java. Since this feature is still experimental, it is disabled by default. It can be enabled by adding the following to your project file:

<PropertyGroup>
  <Antlr4UseCSharpGenerator>True</Antlr4UseCSharpGenerator>
</PropertyGroup>

💡 The new code generation tool produces code which should be compatible with the latest stable release of the runtime library. To use the new code generation tool without introducing a runtime dependency on a prerelease component, upgrade only the Antlr4.CodeGenerator package within the project.

Fix design time builds so IntelliSense works in Visual Studio when using the new project system.

• Avoid reporting "Executing command" as an unknown build error (#200, #216)
• Support both MSBuild and the dotnet CLI (#208)
• Minor documentation updates (#109, #206)

Update version numbers for release 4.6.2