Added build/nupkg scripts.

Build-Guan.ps1

@@ -0,0 +1,15 @@
+$ErrorActionPreference = "Stop"
+
+$Configuration="Release"
+[string] $scriptPath = Split-Path -Parent $MyInvocation.MyCommand.Definition
+
+try {
+    Push-Location $scriptPath
+
+    Remove-Item $scriptPath\Guan\bin\release\netstandard2.0\ -Recurse -Force -EA SilentlyContinue
+
+    dotnet publish $scriptPath\Guan\Guan.csproj -o bin\release\netstandard2.0 -c $Configuration
+}
+finally {
+    Pop-Location
+}

Build-NugetPackage.ps1

@@ -0,0 +1,28 @@
+function Build-Nuget {
+    param (
+        [string]
+        $packageId,
+
+        [string]
+        $basePath
+    )
+
+    [string] $nugetSpecTemplate = [System.IO.File]::ReadAllText([System.IO.Path]::Combine($scriptPath, "Guan.nuspec.template"))
+
+    [string] $nugetSpecPath = "$scriptPath\Guan\bin\release\netstandard2.0\$($packageId).nuspec"
+
+    [System.IO.File]::WriteAllText($nugetSpecPath,  $nugetSpecTemplate.Replace("%PACKAGE_ID%", $packageId).Replace("%ROOT_PATH%", $scriptPath))
+
+    .\nuget.exe pack $nugetSpecPath -basepath $basePath -OutputDirectory bin\release\Guan\Nugets -properties NoWarn=NU5100
+}
+
+[string] $scriptPath = Split-Path -Parent $MyInvocation.MyCommand.Definition
+
+try {
+    Push-Location $scriptPath
+
+    Build-Nuget "Microsoft.ServiceFabricApps.Guan" "$scriptPath\Guan\bin\release\netstandard2.0"
+}
+finally {
+    Pop-Location
+}

Guan.nuspec.template

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2013/05/nuspec.xsd">
+  <metadata minClientVersion="3.3.0">
+    <id>%PACKAGE_ID%</id>
+    <version>1.0.0</version>
+    <authors>Microsoft</authors>
+    <license type="expression">MIT</license>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <title>Guan Logic Progamming Library</title>
+    <icon>icon.png</icon>
+    <language>en-US</language>
+    <description>Guan is a general-purpose logic programming system with a C# API for external predicate implementation. It is a close approximation of Prolog, with extended capabilities and some differences.</description>
+    <contentFiles>
+      <files include="**" buildAction="None" copyToOutput="true" />
+    </contentFiles>
+    <dependencies>
+      <group targetFramework=".NETStandard2.0" />
+    </dependencies>
+    <projectUrl>https://github.com/microsoft/guan</projectUrl>
+    <tags>guan logic-programming netstandard20 csharp</tags>
+    <copyright>© Microsoft Corporation. All rights reserved.</copyright>
+  </metadata>
+  <files>
+    <file src="Guan.dll" target="lib\netstandard2.0" />
+    <file src="%ROOT_PATH%\icon.png" target="" />
+  </files>
+</package>

Guan.sln

@@ -7,7 +7,11 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Guan", "Guan\Guan.csproj",
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{E9747193-8B25-42DF-992E-4FCF2E07A1D4}"
 	ProjectSection(SolutionItems) = preProject
+		Build-Guan.ps1 = Build-Guan.ps1
+		Build-NugetPackage.ps1 = Build-NugetPackage.ps1
 		CODE_OF_CONDUCT.md = CODE_OF_CONDUCT.md
+		Guan.nuspec.template = Guan.nuspec.template
+		icon.png = icon.png
 		README.md = README.md
 		SECURITY.md = SECURITY.md
 	EndProjectSection

Guan/Guan.csproj

@@ -10,5 +10,6 @@
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageReference Include="System.Configuration.Abstractions" Version="2.0.2.45" />
     <PackageReference Include="System.Data.DataSetExtensions" Version="4.5.0" />
+    <PackageReference Include="System.Configuration.ConfigurationManager" Version="4.4.1" />
   </ItemGroup>
 </Project>

Guan/Logic/ModuleProvider.cs

@@ -12,7 +12,7 @@ namespace Guan.Logic
     /// Class maintaining predicate types from multiple modules to provide
     /// a lookup facility.
     /// </summary>
-    internal class ModuleProvider : IFunctorProvider
+    public class ModuleProvider : IFunctorProvider
     {
         /// <summary>
         /// Predicate types with the same name but different modules.