.NET Standard 2.0

Build-Guan.ps1

@@ -6,9 +6,9 @@ $Configuration="Release"
 try {
     Push-Location $scriptPath
 
-    Remove-Item $scriptPath\Guan\bin\release\netstandard2.1\ -Recurse -Force -EA SilentlyContinue
+    Remove-Item $scriptPath\Guan\bin\release\netstandard2.0\ -Recurse -Force -EA SilentlyContinue
 
-    dotnet publish $scriptPath\Guan\Guan.csproj -o bin\release\netstandard2.1 -c $Configuration
+    dotnet publish $scriptPath\Guan\Guan.csproj -o bin\release\netstandard2.0 -c $Configuration
 }
 finally {
     Pop-Location

Build-NugetPackage.ps1

@@ -22,7 +22,7 @@ function Build-Nuget {
 
     [string] $nugetSpecTemplate = [System.IO.File]::ReadAllText([System.IO.Path]::Combine($scriptPath, "Guan.nuspec.template"))
 
-    [string] $nugetSpecPath = "$scriptPath\Guan\bin\release\netstandard2.1\$($packageId).nuspec"
+    [string] $nugetSpecPath = "$scriptPath\Guan\bin\release\netstandard2.0\$($packageId).nuspec"
 
     [System.IO.File]::WriteAllText($nugetSpecPath, $nugetSpecTemplate.Replace("%PACKAGE_ID%", $packageId).Replace("%ROOT_PATH%", $scriptPath))
 
@@ -37,7 +37,7 @@ try {
 
     Install-Nuget
 
-    Build-Nuget "Microsoft.Logic.Guan" "$scriptPath\Guan\bin\release\netstandard2.1"
+    Build-Nuget "Microsoft.Logic.Guan" "$scriptPath\Guan\bin\release\netstandard2.0"
 }
 finally {
 

Guan.nuspec.template

@@ -4,7 +4,7 @@
     <id>%PACKAGE_ID%</id>
     <version>1.0.1-Preview</version>
 	  <releaseNotes>
-- Refactorings, bug fixes implementation improvements, code improvements. .NET Standard 2.1.
+- Refactorings, bug fixes implementation improvements, code improvements.
 	  </releaseNotes>
     <authors>Microsoft</authors>
     <license type="expression">MIT</license>
@@ -17,14 +17,14 @@
       <files include="**" buildAction="None" copyToOutput="true" />
     </contentFiles>
     <dependencies>
-      <group targetFramework=".NETStandard2.1" />
+      <group targetFramework=".NETStandard2.0" />
     </dependencies>
     <projectUrl>https://github.com/microsoft/guan</projectUrl>
     <tags>guan logic-programming netstandard21 netcore csharp</tags>
     <copyright>© Microsoft Corporation. All rights reserved.</copyright>
   </metadata>
   <files>
-    <file src="Guan.dll" target="lib\netstandard2.1" />
+    <file src="Guan.dll" target="lib\netstandard2.0" />
     <file src="%ROOT_PATH%\icon.png" target="" />
   </files>
 </package>

Guan/Guan.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>netstandard2.1</TargetFramework>
+    <TargetFramework>netstandard2.0</TargetFramework>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />

Guan/Logic/JsonPropertyContext.cs

@@ -30,7 +30,7 @@ namespace Guan.Logic
                 }
 
                 index = -1;
-                if (name.EndsWith(']'))
+                if (name.EndsWith("]"))
                 {
                     index = name.LastIndexOf('[');
                     if (index > 0)

Guan/Logic/TermOption.cs

@@ -80,7 +80,7 @@ namespace Guan.Logic
                 else if (name == Trace)
                 {
                     string traceConfig = (string)value;
-                    this.traceTypes = new List<string>(traceConfig.Split(',', System.StringSplitOptions.RemoveEmptyEntries));
+                    this.traceTypes = new List<string>(traceConfig.Split(new char[] { ',' },  System.StringSplitOptions.RemoveEmptyEntries));
                 }
                 else if (name == "CatchException")
                 {

Guan/Logic/UnificationResult.cs

@@ -63,7 +63,7 @@ namespace Guan.Logic
             StringBuilder result = new StringBuilder();
             foreach (OutputVariable entry in this.entries)
             {
-                if (!entry.Original.Name.StartsWith('_'))
+                if (!entry.Original.Name.StartsWith("_"))
                 {
                     Term value = entry.GetBoundTerm();
                     LinkedVariable linkedVariable = value as LinkedVariable;