Fix for table depth error when cell contains backticks (#891)

* failing test

* fixed bug with table containing back tick which causes depth error

src/Markdig.Tests/TestPipeTable.cs

@@ -57,4 +57,48 @@ public sealed class TestPipeTable
             Assert.AreEqual(0, column.Width);
         }
     }
+
+    [Test]
+    public void TableWithUnbalancedCodeSpanParsesWithoutDepthLimitError()
+    {
+        const string markdown = """
+| Count | A | B | C | D | E |
+|-------|---|---|---|---|---|
+|     0 | B | C | D | E | F |
+|     1 | B | `C | D | E | F |
+|     2 | B | `C | D | E | F |
+|     3 | B | C | D | E | F |
+|     4 | B | C | D | E | F |
+|     5 | B | C | D | E | F |
+|     6 | B | C | D | E | F |
+|     7 | B | C | D | E | F |
+|     8 | B | C | D | E | F |
+|     9 | B | C | D | E | F |
+|    10 | B | C | D | E | F |
+|    11 | B | C | D | E | F |
+|    12 | B | C | D | E | F |
+|    13 | B | C | D | E | F |
+|    14 | B | C | D | E | F |
+|    15 | B | C | D | E | F |
+|    16 | B | C | D | E | F |
+|    17 | B | C | D | E | F |
+|    18 | B | C | D | E | F |
+|    19 | B | C | D | E | F |
+""";
+
+        var pipeline = new MarkdownPipelineBuilder()
+            .UseAdvancedExtensions()
+            .Build();
+
+        MarkdownDocument document = null!;
+        Assert.DoesNotThrow(() => document = Markdown.Parse(markdown, pipeline));
+
+        var tables = document.Descendants().OfType<Table>().ToArray();
+        Assert.That(tables, Has.Length.EqualTo(1));
+
+        string html = string.Empty;
+        Assert.DoesNotThrow(() => html = Markdown.ToHtml(markdown, pipeline));
+        Assert.That(html, Does.Contain("<table"));
+        Assert.That(html, Does.Contain("<td>`C</td>"));
+    }
 }

src/Markdig/Extensions/Tables/PipeTableParser.cs

@@ -196,6 +196,16 @@ public class PipeTableParser : InlineParser, IPostInlineProcessor
         // Continue
         if (tableState is null || container is null || tableState.IsInvalidTable || !tableState.LineHasPipe ) //|| tableState.LineIndex != state.LocalLineIndex)
         {
+            if (tableState is not null)
+            {
+                foreach (var inline in tableState.ColumnAndLineDelimiters)
+                {
+                    if (inline is PipeTableDelimiterInline pipeDelimiter)
+                    {
+                        pipeDelimiter.ReplaceByLiteral();
+                    }
+                }
+            }
             return true;
         }
 

src/Markdig/Parsers/Inlines/CodeInlineParser.cs

@@ -35,6 +35,7 @@ public class CodeInlineParser : InlineParser
         Debug.Assert(match is not ('\r' or '\n'));
 
         // Match the opened sticks
+        int openingStart = slice.Start;
         int openSticks = slice.CountAndSkipChar(match);
 
         // A backtick string is a string of one or more backtick characters (`) that is neither preceded nor followed by a backtick.
@@ -75,8 +76,25 @@ public class CodeInlineParser : InlineParser
             {
                 break;
             }
-            else if (closeSticks == 0)
+
+            if (closeSticks == 0)
             {
+                ReadOnlySpan<char> lookAhead = span.Length > 1 ? span.Slice(1) : ReadOnlySpan<char>.Empty;
+                while (!lookAhead.IsEmpty && (lookAhead[0] == '\r' || lookAhead[0] == '\n'))
+                {
+                    lookAhead = lookAhead.Slice(1);
+                }
+                int whitespace = 0;
+                while (whitespace < lookAhead.Length && (lookAhead[whitespace] == ' ' || lookAhead[whitespace] == '\t'))
+                {
+                    whitespace++;
+                }
+                if (whitespace < lookAhead.Length && lookAhead[whitespace] == '|')
+                {
+                    slice.Start = openingStart;
+                    return false;
+                }
+
                 containsNewLines = true;
                 span = span.Slice(1);
             }