skel

.gitignore

@@ -0,0 +1,2 @@
+**/obj/
+**/bin/

Nyanlabs.Pubresolv.sln

@@ -0,0 +1,27 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{66E15B3B-99D3-4443-A623-359B0C4EEBD6}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Nyanlabs.Pubresolv", "src\Nyanlabs.Pubresolv\Nyanlabs.Pubresolv.csproj", "{1F6A79FC-2745-4421-B329-A956E4B9E671}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{1F6A79FC-2745-4421-B329-A956E4B9E671}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{1F6A79FC-2745-4421-B329-A956E4B9E671}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{1F6A79FC-2745-4421-B329-A956E4B9E671}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{1F6A79FC-2745-4421-B329-A956E4B9E671}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(NestedProjects) = preSolution
+		{1F6A79FC-2745-4421-B329-A956E4B9E671} = {66E15B3B-99D3-4443-A623-359B0C4EEBD6}
+	EndGlobalSection
+EndGlobal

README.md

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+# pubresolv
+
+Scientific document resolver for academic proxies

src/Nyanlabs.Pubresolv/Doi.cs

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+using System.Diagnostics.CodeAnalysis;
+using System.Text.RegularExpressions;
+
+namespace Nyanlabs.Pubresolv;
+
+public readonly struct Doi
+{
+    public Doi(string doi)
+    {
+        var match = Regex.Match(doi, @"^10\.(?<prefix>\d{4})\/(?<suffix>.*)$", RegexOptions.Compiled);
+        try
+        {
+            Prefix = short.Parse(match.Groups["prefix"].Value);
+            Suffix = match.Groups["suffix"].Value;
+        }
+        catch (Exception)
+        {
+            throw new ArgumentException($"Invalid DOI string: {doi}");
+        }
+    }
+
+    public short Prefix { get; }
+    public string Suffix { get; }
+
+    public override readonly string ToString() => $"10.{Prefix}/{Suffix}";
+    public override readonly bool Equals([NotNullWhen(true)] object? obj)
+    {
+        return obj is Doi doi && doi.Prefix == Prefix && doi.Suffix == Suffix;
+    }
+
+    public static bool operator ==(Doi left, Doi right) => left.Equals(right);
+
+    public static bool operator !=(Doi left, Doi right) => !(left == right);
+
+    public override int GetHashCode() => HashCode.Combine(Prefix, Suffix);
+}

src/Nyanlabs.Pubresolv/IResolver.cs

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+namespace Nyanlabs.Pubresolv;
+
+public interface IResolver
+{
+    public Task Resolve(Doi doi);
+}

src/Nyanlabs.Pubresolv/Nyanlabs.Pubresolv.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

src/Nyanlabs.Pubresolv/Pubresolv.cs

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+namespace Nyanlabs.Pubresolv;
+
+public class Pubresolv
+{
+    public ICollection<IResolver> GetResolvers()
+    {
+        throw new NotImplementedException();
+    }
+}