feat: added initial implementation of TextParser, ref: A24-3

TextParser.Tests/TextParserTests.cs

@@ -0,0 +1,93 @@
+namespace TextParser.Tests;
+
+using Parsing;
+using Parsing.Schema;
+using Parsing.Schema.BuildingBlocks;
+using Parsing.Tokenization;
+
+public class TextParserTests
+{
+    private const string testInput1 = "2 4 6 8";
+    private const string testInput2 = "2 ab ba 8 cd dc";
+
+    [Fact]
+    public void TestSimpleRepetition()
+    {
+        var schemaBuilder = new InputSchemaBuilder();
+        var schema = schemaBuilder
+                        .Repeat(4)
+                            .Expect(InputType.Integer)
+                        .EndRepetition()
+                        .Build();
+
+        var parser = new TextParser(schema);
+        var tokens = parser.ParseLine(testInput1);
+
+        Assert.Equal(4, tokens.Count);
+        Assert.Equal(InputType.Integer, tokens[0].GetInputType());
+        Assert.Equal(InputType.Integer, tokens[1].GetInputType());
+        Assert.Equal(InputType.Integer, tokens[2].GetInputType());
+        Assert.Equal(InputType.Integer, tokens[3].GetInputType());
+        Assert.Equal(2, (tokens[0] as IntegerToken)?.GetValue());
+        Assert.Equal(4, (tokens[1] as IntegerToken)?.GetValue());
+        Assert.Equal(6, (tokens[2] as IntegerToken)?.GetValue());
+        Assert.Equal(8, (tokens[3] as IntegerToken)?.GetValue());
+    }
+
+    [Fact]
+    public void TestSimpleInput()
+    {
+        var schemaBuilder = new InputSchemaBuilder();
+        var schema = schemaBuilder
+                        .Expect(InputType.Integer)
+                        .Expect(InputType.Integer)
+                        .Expect(InputType.Integer)
+                        .Expect(InputType.Integer)
+                        .Build();
+
+        var parser = new TextParser(schema);
+        var tokens = parser.ParseLine(testInput1);
+
+        Assert.Equal(4, tokens.Count);
+        Assert.Equal(InputType.Integer, tokens[0].GetInputType());
+        Assert.Equal(InputType.Integer, tokens[1].GetInputType());
+        Assert.Equal(InputType.Integer, tokens[2].GetInputType());
+        Assert.Equal(InputType.Integer, tokens[3].GetInputType());
+        Assert.Equal(2, (tokens[0] as IntegerToken)?.GetValue());
+        Assert.Equal(4, (tokens[1] as IntegerToken)?.GetValue());
+        Assert.Equal(6, (tokens[2] as IntegerToken)?.GetValue());
+        Assert.Equal(8, (tokens[3] as IntegerToken)?.GetValue());
+    }
+
+
+    [Fact]
+    public void TestNestedRepetition()
+    {
+        var schemaBuilder = new InputSchemaBuilder();
+        var schema = schemaBuilder
+                        .Repeat(2)
+                            .Expect(InputType.Integer)
+                            .Repeat(2)
+                                .Expect(InputType.String)
+                            .EndRepetition()
+                        .EndRepetition()
+                        .Build();
+
+        var parser = new TextParser(schema);
+        var tokens = parser.ParseLine(testInput2);
+
+        Assert.Equal(6, tokens.Count);
+        Assert.Equal(InputType.Integer, tokens[0].GetInputType());
+        Assert.Equal(InputType.String, tokens[1].GetInputType());
+        Assert.Equal(InputType.String, tokens[2].GetInputType());
+        Assert.Equal(InputType.Integer, tokens[3].GetInputType());
+        Assert.Equal(InputType.String, tokens[4].GetInputType());
+        Assert.Equal(InputType.String, tokens[5].GetInputType());
+        Assert.Equal(2, (tokens[0] as IntegerToken)?.GetValue());
+        Assert.Equal("ab", (tokens[1] as StringToken)?.GetValue());
+        Assert.Equal("ba", (tokens[2] as StringToken)?.GetValue());
+        Assert.Equal(8, (tokens[3] as IntegerToken)?.GetValue());
+        Assert.Equal("cd", (tokens[4] as StringToken)?.GetValue());
+        Assert.Equal("dc", (tokens[5] as StringToken)?.GetValue());
+    }
+}

TextParser.Tests/UnitTest1.cs

@@ -1,14 +0,0 @@
-namespace TextParser.Tests;
-
-using TextParser;
-
-public class UnitTest1
-{
-    [Fact]
-    public void Test1()
-    {
-        var hwp = new HelloWorldProvider();
-        Assert.Equal("Hello, Simon!", hwp.GetHelloWorld("Simon"));
-        Assert.Equal("Hello world!", hwp.GetHelloWorld());
-    }
-}