diff-text

diff-text/Program.cs

@@ -0,0 +1,63 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using DiffMatchPatch;
+using DTLib.Filesystem;
+
+Console.InputEncoding=Encoding.UTF8;
+Console.OutputEncoding=Encoding.UTF8;
+
+if (args.Length != 2)
+{
+    Console.WriteLine("usage: [file0] [file1]");
+    return;
+}
+
+var _diff=FileDiff(args[0], args[1]);
+PrintDiff(_diff);
+
+
+List<Diff> FileDiff(string file0, string file1)
+{
+    string fileText0 = File.ReadAllText(file0);
+    string fileText1 = File.ReadAllText(file1);
+    return TextDiff(fileText0, fileText1);
+}
+
+List<Diff> TextDiff(string text0, string text1)
+{
+    var diff = Diff.Compute(text0, text1, checklines:true);
+    diff.CleanupSemantic();
+    return diff;
+}
+
+void PrintDiff(List<Diff> diff, bool ignoreWhitespaces=false)
+{
+    foreach (var d in diff)
+    {
+        bool whitespaceOnly = d.WhitespaceOnlyDiff;
+        if(ignoreWhitespaces && whitespaceOnly)
+            continue;
+        
+        switch(d.Operation)
+        {
+            case Operation.Delete:
+                Console.BackgroundColor = ConsoleColor.DarkRed;
+                Console.ForegroundColor = ConsoleColor.Black;
+                Console.Write(whitespaceOnly ? d.FormattedText : d.Text);
+                Console.ResetColor();
+                break;
+            case Operation.Insert:
+                Console.BackgroundColor = ConsoleColor.DarkGreen;
+                Console.ForegroundColor = ConsoleColor.Black;
+                Console.Write(whitespaceOnly ? d.FormattedText : d.Text);
+                Console.ResetColor();
+                break;
+            case Operation.Equal:
+                Console.Write(d.Text);
+                break;
+            default:
+                throw new ArgumentOutOfRangeException(d.Operation.ToString());
+        }
+    }
+}

diff-text/diff-text.csproj

@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net7.0</TargetFramework>
+        <RootNamespace>diff_text</RootNamespace>
+        <ImplicitUsings>disable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <PackageReference Include="google-diff-match-patch" Version="1.3.70" />
+    </ItemGroup>
+    <ItemGroup Condition=" '$(Configuration)' == 'Debug' ">
+        <ProjectReference Include="..\..\DTLib\DTLib\DTLib.csproj" />
+    </ItemGroup>
+    <ItemGroup Condition=" '$(Configuration)' != 'Debug' ">
+        <PackageReference Include="DTLib" Version="1.1.3" />
+    </ItemGroup>
+</Project>