fix: some bugfixes with fragment parser logic, ref: NOISSUE

.gitea/workflows/main.yml

@@ -17,23 +17,7 @@ on:
   workflow_dispatch:
 
 jobs:
-  linter:
-    strategy:
-      fail-fast: false
-      matrix:
-        dotnet-version: [9.0.X]
-        os: [ubuntu-latest]
-    runs-on: ${{ matrix.os }}
-    steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-dotnet@v4
-        with:
-          dotnet-version: ${{ matrix.dotnet-version }}
-      - name: Run linter
-        run: make lint
-
   tests_linux:
-    needs: linter
     strategy:
       fail-fast: false
       matrix:

TextParser.Tests/TextParserTests.cs

@@ -18,7 +18,7 @@ public class TextParserTests
     private const string testInput5 = @"asdfnums(2,5,3)ght 
 
                                         cv strs(test)      jh 4,3,2
-                                        
+
                                         34,54,2nums(2,8) strs(aa,ab,ba,bb)aa,bb";
 
     [Fact]
@@ -230,7 +230,7 @@ public class TextParserTests
                         .EndOptions()
                         .Build();
 
-        var parser = new TextParser<FragmentSchemaContext>(schema);
+        var parser = TextParser.Create(schema);
         var fragmentData = parser
                         .SetInputText(testInput5)
                         .Parse()

TextParser/Schema/BuildingBlocks/FixedRepetitionBlock.cs

@@ -31,7 +31,7 @@ class FixedRepetitionBlock : BuildingBlockBase
                 this.context = this.inputSchema.CreateContext();
             }
         }
-        return result.SingleOrDefault();
+        return result.Single();
     }
 
     public override bool CanParseWord(InputProvider inputs)

TextParser/Schema/BuildingBlocks/GreedyRepetitionBlock.cs

@@ -22,7 +22,7 @@ class GreedyRepetitionBlock : BuildingBlockBase
         {
             this.context = this.inputSchema.CreateContext();
         }
-        return result.SingleOrDefault();
+        return result.Single();
     }
 
     public override bool CanParseWord(InputProvider inputs)

TextParser/Schema/FragmentSchemaBuilder.cs

@@ -100,6 +100,10 @@ public class FragmentSchemaBuilder : RepetitionSchemaBuilder<FragmentSchemaBuild
             throw new Exception("Invalid repetition definitions!");
         }
         var oldSchemaBuilder = currentBuilder.UpperLayerBuilder;
+        if (oldSchemaBuilder == null)
+        {
+            throw new Exception("Something went terribly wrong!");
+        }
 
         var currentRegex = "(" + currentBuilder.fragmentRegex + ")";
         switch (currentBuilder.RepetitionType)

TextParser/Schema/InputSchemaBuilder.cs

@@ -55,22 +55,26 @@ public class InputSchemaBuilder : RepetitionSchemaBuilder<InputSchemaBuilder, In
         {
             throw new Exception("Invalid repetition definitions!");
         }
-        var oldInputSchemaBuilder = currentBuilder.UpperLayerBuilder;
+        var oldSchemaBuilder = currentBuilder.UpperLayerBuilder;
+        if (oldSchemaBuilder == null)
+        {
+            throw new Exception("Something went terribly wrong!");
+        }
 
         var currentSchema = currentBuilder.Build();
         switch (currentBuilder.RepetitionType)
         {
             case RepetitionType.FixedRepetition:
-                oldInputSchemaBuilder.schema.AddBuildingBlock(new FixedRepetitionBlock(currentSchema, currentBuilder.NumRepetition));
+                oldSchemaBuilder.schema.AddBuildingBlock(new FixedRepetitionBlock(currentSchema, currentBuilder.NumRepetition));
                 break;
             case RepetitionType.GreedyRepetition:
-                oldInputSchemaBuilder.schema.AddBuildingBlock(new GreedyRepetitionBlock(currentSchema));
+                oldSchemaBuilder.schema.AddBuildingBlock(new GreedyRepetitionBlock(currentSchema));
                 break;
             default:
                 throw new Exception("Unrecognized RepetitionType");
         }
 
-        return oldInputSchemaBuilder;
+        return oldSchemaBuilder;
     }
 
     public InputSchema Build()

TextParser/TextParser.cs

@@ -5,6 +5,14 @@ using System.Collections.Generic;
 using Parsing.Schema;
 using Parsing.Tokenization;
 
+public static class TextParser
+{
+    public static TextParser<TContext> Create<TContext>(ISchema<TContext> schema, string[]? delimiters = null, bool removeEmptyEntries = true) where TContext : ISchemaContext
+    {
+        return new TextParser<TContext>(schema, delimiters, removeEmptyEntries);
+    }
+}
+
 public class TextParser<T> : TokenConverter where T : ISchemaContext
 {
     private LineParser<T> lineParser;

TextParser/TokenConverter.cs

@@ -56,7 +56,7 @@ public static class DataManipulationHelpers
     {
         if (data.Count < 2)
         {
-            return data[0] ?? default(TType);
+            return data[0];
         }
         TType result = data[0];
         for (int i = 1; i < data.Count; i++)