Return Formulas.Tools to netstandard2.0

src/Directory.Build.props

@@ -39,7 +39,6 @@
         <Using Include="System" />
         <Using Include="System.Collections.Generic" />
         <Using Include="System.Diagnostics" />
-        <Using Include="Microsoft.Extensions.DependencyInjection" />
     </ItemGroup>
 
     <!-- If not otherwise specified, the project is building for Debug -->

src/PAModel/Checksum/ChecksumMaker.cs

@@ -247,7 +247,7 @@ internal static string NormFormulaWhitespace(string s)
             }
         }
         // Don't include trailing whitespace
-        while ((sb.Length > 1) && sb[^1] == ' ') { sb.Length--; }
+        while ((sb.Length > 1) && sb[sb.Length - 1] == ' ') { sb.Length--; }
 
         return sb.ToString();
     }

src/PAModel/IsExternalInit.cs

@@ -0,0 +1,25 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+
+#if NETFRAMEWORK || NETSTANDARD2_0
+#pragma warning disable
+
+using System.ComponentModel;
+
+namespace System.Runtime.CompilerServices;
+
+// C# 9 init property setters and record types do not quite function out-of-the-box
+// for net4.8, but do so long as an "System.Runtime.CompilerServices.IsExternalInit"
+// type merely exists.
+[EditorBrowsable(EditorBrowsableState.Never)]
+#if TFMADAPTERS_PUBLIC
+public
+#else
+internal
+#endif
+static class IsExternalInit
+{
+}
+
+#pragma warning restore
+#endif

src/PAModel/Microsoft.PowerPlatform.Formulas.Tools.csproj

@@ -1,6 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+    <LangVersion>12</LangVersion>
     <AssemblyName>Microsoft.PowerPlatform.Formulas.Tools</AssemblyName>
     <RootNamespace>Microsoft.PowerPlatform.Formulas.Tools</RootNamespace>
   </PropertyGroup>
@@ -49,8 +51,4 @@
     <PackageReference Include="System.Text.Encodings.Web" Version="6.0.0" />
     <PackageReference Include="YamlDotNet" Version="$(YamlDotNetVersion)" />
   </ItemGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\Persistence\Microsoft.PowerPlatform.PowerApps.Persistence.csproj" />
-  </ItemGroup>
 </Project>

src/PAModel/PAConvert/Parser/CharacterUtils.cs

@@ -123,7 +123,7 @@ public static string UnEscapeName(string name, ErrorContainer errors)
     {
         if (IsIdentDelimiter(name[0]))
         {
-            if (!IsIdentDelimiter(name[^1]))
+            if (!IsIdentDelimiter(name[name.Length - 1]))
             {
                 // Must match
                 errors.ParseError(default, $"Unmatched escape delimeter in {name}");

src/PAModel/PAConvert/Yaml/YamlLexer.cs

@@ -513,15 +513,15 @@ private string ReadMultiline(int multilineMode)
         {
             while (true)
             {
-                if (sb.Length > 0 && sb[^1] == '\n')
+                if (sb.Length > 0 && sb[sb.Length - 1] == '\n')
                 {
                     sb.Length--;
                 }
                 else
                 {
                     break;
                 }
-                if (sb.Length > 0 && sb[^1] == '\r')
+                if (sb.Length > 0 && sb[sb.Length - 1] == '\r')
                 {
                     sb.Length--;
                 }

src/PAModel/Serializers/MsAppSerializer.cs

@@ -57,7 +57,10 @@ private static string AsString(ZipArchiveEntry entry)
 
     public static CanvasDocument Load(Stream streamToMsapp, ErrorContainer errors)
     {
-        ArgumentNullException.ThrowIfNull(streamToMsapp);
+        if (streamToMsapp == null)
+        {
+            throw new ArgumentNullException(nameof(streamToMsapp));
+        }
 
         // Read raw files. 
         // Apply transforms. 

src/PAModel/packages.lock.json

@@ -1,13 +1,22 @@
 {
   "version": 1,
   "dependencies": {
-    "net8.0": {
+    ".NETStandard,Version=v2.0": {
       "Microsoft.Net.Compilers.Toolset.Framework": {
         "type": "Direct",
         "requested": "[4.10.0-3.24216.12, )",
         "resolved": "4.10.0-3.24216.12",
         "contentHash": "Y1T1ZN3cHWToRYZHhRs8xby1tMCkF23Jb//zK+Tdf4ourzwbMQ4GiTRVVFAlWvmA10iVNUyCZucAeLt5XeiDqA=="
       },
+      "NETStandard.Library": {
+        "type": "Direct",
+        "requested": "[2.0.3, )",
+        "resolved": "2.0.3",
+        "contentHash": "st47PosZSHrjECdjeIzZQbzivYBJFv6P2nv4cj2ypdI204DO+vZ7l5raGMiX4eXMJ53RfOIg+/s4DHVZ54Nu2A==",
+        "dependencies": {
+          "Microsoft.NETCore.Platforms": "1.1.0"
+        }
+      },
       "Newtonsoft.Json": {
         "type": "Direct",
         "requested": "[13.0.1, )",
@@ -20,6 +29,8 @@
         "resolved": "6.0.0",
         "contentHash": "Vg8eB5Tawm1IFqj4TVK1czJX89rhFxJo9ELqc/Eiq0eXy13RK00eubyU6TJE6y+GQXjyV5gSfiewDUZjQgSE0w==",
         "dependencies": {
+          "System.Buffers": "4.5.1",
+          "System.Memory": "4.5.4",
           "System.Runtime.CompilerServices.Unsafe": "6.0.0"
         }
       },
@@ -29,8 +40,13 @@
         "resolved": "6.0.0",
         "contentHash": "zaJsHfESQvJ11vbXnNlkrR46IaMULk/gHxYsJphzSF+07kTjPHv+Oc14w6QEOfo3Q4hqLJgStUaYB9DBl0TmWg==",
         "dependencies": {
+          "Microsoft.Bcl.AsyncInterfaces": "6.0.0",
+          "System.Buffers": "4.5.1",
+          "System.Memory": "4.5.4",
+          "System.Numerics.Vectors": "4.5.0",
           "System.Runtime.CompilerServices.Unsafe": "6.0.0",
-          "System.Text.Encodings.Web": "6.0.0"
+          "System.Text.Encodings.Web": "6.0.0",
+          "System.Threading.Tasks.Extensions": "4.5.4"
         }
       },
       "YamlDotNet": {
@@ -42,87 +58,47 @@
       "Microsoft.Bcl.AsyncInterfaces": {
         "type": "Transitive",
         "resolved": "6.0.0",
-        "contentHash": "UcSjPsst+DfAdJGVDsu346FX0ci0ah+lw3WRtn18NUwEqRt70HaOQ7lI72vy3+1LxtqI3T5GWwV39rQSrCzAeg=="
-      },
-      "Microsoft.Extensions.DependencyInjection": {
-        "type": "Transitive",
-        "resolved": "8.0.0",
-        "contentHash": "V8S3bsm50ig6JSyrbcJJ8bW2b9QLGouz+G1miK3UTaOWmMtFwNNNzUf4AleyDWUmTrWMLNnFSLEQtxmxgNQnNQ==",
+        "contentHash": "UcSjPsst+DfAdJGVDsu346FX0ci0ah+lw3WRtn18NUwEqRt70HaOQ7lI72vy3+1LxtqI3T5GWwV39rQSrCzAeg==",
         "dependencies": {
-          "Microsoft.Extensions.DependencyInjection.Abstractions": "8.0.0"
+          "System.Threading.Tasks.Extensions": "4.5.4"
         }
       },
-      "Microsoft.Extensions.DependencyInjection.Abstractions": {
+      "Microsoft.NETCore.Platforms": {
         "type": "Transitive",
-        "resolved": "8.0.0",
-        "contentHash": "cjWrLkJXK0rs4zofsK4bSdg+jhDLTaxrkXu4gS6Y7MAlCvRyNNgwY/lJi5RDlQOnSZweHqoyvgvbdvQsRIW+hg=="
+        "resolved": "1.1.0",
+        "contentHash": "kz0PEW2lhqygehI/d6XsPCQzD7ff7gUJaVGPVETX611eadGsA3A877GdSlU0LRVMCTH/+P3o2iDTak+S08V2+A=="
       },
-      "Microsoft.Extensions.Logging": {
+      "System.Buffers": {
         "type": "Transitive",
-        "resolved": "8.0.0",
-        "contentHash": "tvRkov9tAJ3xP51LCv3FJ2zINmv1P8Hi8lhhtcKGqM+ImiTCC84uOPEI4z8Cdq2C3o9e+Aa0Gw0rmrsJD77W+w==",
-        "dependencies": {
-          "Microsoft.Extensions.DependencyInjection": "8.0.0",
-          "Microsoft.Extensions.Logging.Abstractions": "8.0.0",
-          "Microsoft.Extensions.Options": "8.0.0"
-        }
+        "resolved": "4.5.1",
+        "contentHash": "Rw7ijyl1qqRS0YQD/WycNst8hUUMgrMH4FCn1nNm27M4VxchZ1js3fVjQaANHO5f3sN4isvP4a+Met9Y4YomAg=="
       },
-      "Microsoft.Extensions.Logging.Abstractions": {
+      "System.Memory": {
         "type": "Transitive",
-        "resolved": "8.0.0",
-        "contentHash": "arDBqTgFCyS0EvRV7O3MZturChstm50OJ0y9bDJvAcmEPJm0FFpFyjU/JLYyStNGGey081DvnQYlncNX5SJJGA==",
+        "resolved": "4.5.4",
+        "contentHash": "1MbJTHS1lZ4bS4FmsJjnuGJOu88ZzTT2rLvrhW7Ygic+pC0NWA+3hgAen0HRdsocuQXCkUTdFn9yHJJhsijDXw==",
         "dependencies": {
-          "Microsoft.Extensions.DependencyInjection.Abstractions": "8.0.0"
+          "System.Buffers": "4.5.1",
+          "System.Numerics.Vectors": "4.4.0",
+          "System.Runtime.CompilerServices.Unsafe": "4.5.3"
         }
       },
-      "Microsoft.Extensions.Options": {
+      "System.Numerics.Vectors": {
         "type": "Transitive",
-        "resolved": "8.0.0",
-        "contentHash": "JOVOfqpnqlVLUzINQ2fox8evY2SKLYJ3BV8QDe/Jyp21u1T7r45x/R/5QdteURMR5r01GxeJSBBUOCOyaNXA3g==",
-        "dependencies": {
-          "Microsoft.Extensions.DependencyInjection.Abstractions": "8.0.0",
-          "Microsoft.Extensions.Primitives": "8.0.0"
-        }
-      },
-      "Microsoft.Extensions.Primitives": {
-        "type": "Transitive",
-        "resolved": "8.0.0",
-        "contentHash": "bXJEZrW9ny8vjMF1JV253WeLhpEVzFo1lyaZu1vQ4ZxWUlVvknZ/+ftFgVheLubb4eZPSwwxBeqS1JkCOjxd8g=="
-      },
-      "Microsoft.PowerFx.Core": {
-        "type": "Transitive",
-        "resolved": "1.2.0",
-        "contentHash": "M9DY6FqWUXUPgjbbHsB3vt7+b4QPFaoKBZ7ixSU7cPgHKzo/aNohzYWxYasXwTV6pamv5gX9AqLuF13RimMPdg==",
-        "dependencies": {
-          "Microsoft.Bcl.AsyncInterfaces": "6.0.0",
-          "Microsoft.PowerFx.Transport.Attributes": "1.2.0",
-          "System.Collections.Immutable": "6.0.0"
-        }
-      },
-      "Microsoft.PowerFx.Transport.Attributes": {
-        "type": "Transitive",
-        "resolved": "1.2.0",
-        "contentHash": "zlvi59W/4MdDJeR2rIL8k633V+FIHtxbhyaurNBZevksNWCZ49AV0bUhpB6cUjD/vwci8ZXXWziw0yYnjXIzNg=="
-      },
-      "System.Collections.Immutable": {
-        "type": "Transitive",
-        "resolved": "6.0.0",
-        "contentHash": "l4zZJ1WU2hqpQQHXz1rvC3etVZN+2DLmQMO79FhOTZHMn8tDRr+WU287sbomD0BETlmKDn0ygUgVy9k5xkkJdA==",
-        "dependencies": {
-          "System.Runtime.CompilerServices.Unsafe": "6.0.0"
-        }
+        "resolved": "4.5.0",
+        "contentHash": "QQTlPTl06J/iiDbJCiepZ4H//BVraReU4O4EoRw1U02H5TLUIT7xn3GnDp9AXPSlJUDyFs4uWjWafNX6WrAojQ=="
       },
       "System.Runtime.CompilerServices.Unsafe": {
         "type": "Transitive",
         "resolved": "6.0.0",
         "contentHash": "/iUeP3tq1S0XdNNoMz5C9twLSrM/TH+qElHkXWaPvuNOt+99G75NrV0OS2EqHx5wMN7popYjpc8oTjC1y16DLg=="
       },
-      "microsoft.powerplatform.powerapps.persistence": {
-        "type": "Project",
+      "System.Threading.Tasks.Extensions": {
+        "type": "Transitive",
+        "resolved": "4.5.4",
+        "contentHash": "zteT+G8xuGu6mS+mzDzYXbzS7rd3K6Fjb9RiZlYlJPam2/hU7JCBZBVEcywNuR+oZ1ncTvc/cq0faRr3P01OVg==",
         "dependencies": {
-          "Microsoft.Extensions.Logging": "[8.0.0, )",
-          "Microsoft.PowerFx.Core": "[1.2.0, )",
-          "YamlDotNet": "[15.1.6, )"
+          "System.Runtime.CompilerServices.Unsafe": "4.5.3"
         }
       }
     }

src/Persistence.Tests/Persistence.Tests.csproj

@@ -38,6 +38,7 @@
         <Using Include="FluentAssertions" />
         <Using Include="Microsoft.VisualStudio.TestTools.UnitTesting" />
         <Using Include="Persistence.Tests.Extensions" />
+        <Using Include="Microsoft.Extensions.DependencyInjection" />
     </ItemGroup>
 
     <ItemGroup>

src/Persistence/Microsoft.PowerPlatform.PowerApps.Persistence.csproj

@@ -35,6 +35,10 @@
     <NoWarn>$(NoWarn);NU1601</NoWarn>
   </PropertyGroup>
 
+  <ItemGroup Label="Global usings">
+      <Using Include="Microsoft.Extensions.DependencyInjection" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.PowerFx.Core" Version="1.2.0" />
     <PackageReference Include="YamlDotNet" Version="$(YamlDotNetVersion)" />