Fix for Issue #460: a bracketed field containing nested brackets (e.g…

.gitattributes

@@ -0,0 +1,7 @@
+# Generated at release time by `nuget-license | Set-Content` on a Windows runner,
+# which writes CRLF. Pin to LF so the regenerated file matches the committed blob
+# regardless of the runner's core.autocrlf setting — otherwise releases would
+# commit pure line-ending churn (or treat the file as binary). See release.yml.
+# (Pattern has no slash so it matches the file regardless of path — its directory
+# "Solution Items" contains a space, which .gitattributes cannot express in a path.)
+usedComponents.json text eol=lf

src/LogExpert.Core/Classes/Columnizer/SquareBracketColumnizer.cs

@@ -333,7 +333,24 @@ private Column[] SquareSplit (ReadOnlyMemory<char> line, int dateLen, int timeLe
                 break;
             }
 
-            var closingBracketIndex = trimmed.Span.IndexOf(']');
+            // Find the ']' that matches the opening '[', accounting for nested brackets
+            // (e.g. "[ProgramName/MethodName[41]]" is a single field).
+            var closeSpan = trimmed.Span;
+            var depth = 0;
+            var closingBracketIndex = -1;
+            for (var j = 0; j < closeSpan.Length; j++)
+            {
+                if (closeSpan[j] == '[')
+                {
+                    depth++;
+                }
+                else if (closeSpan[j] == ']' && --depth == 0)
+                {
+                    closingBracketIndex = j;
+                    break;
+                }
+            }
+
             if (closingBracketIndex < 0)
             {
                 columnList.Add(new Column { FullValue = rest, Parent = clogLine });

src/LogExpert.Tests/ColumnizerTests/SquareBracketColumnizerTest.cs

@@ -76,4 +76,35 @@ public void GetPriority_HappyFile_ColumnCountMatches (string fileName, int count
         _ = squareBracketColumnizer.GetPriority(path, loglines);
         Assert.That(count, Is.EqualTo(squareBracketColumnizer.GetColumnCount()));
     }
+
+    // Issue #460: a bracketed field containing nested brackets (e.g. "[ProgramName/MethodName[41]]")
+    // must stay in a single column instead of being split at the first inner ']'.
+    [Test]
+    public void SplitLine_NestedBrackets_KeepsInnerBracketsInOneColumn ()
+    {
+        SquareBracketColumnizer squareBracketColumnizer = new();
+        var path = Path.Join(AppDomain.CurrentDomain.BaseDirectory, @".\TestData\SquareBracketColumnizerTest_06.txt");
+
+        LogfileReader logFileReader = new(path, new EncodingOptions(), true, 40, 50, new MultiFileOptions(), ReaderType.System, PluginRegistry.PluginRegistry.Instance, 500);
+        logFileReader.ReadFiles();
+
+        List<ILogLineMemory> loglines =
+        [
+            logFileReader.GetLogLineMemory(0),
+            logFileReader.GetLogLineMemory(1)
+        ];
+
+        _ = squareBracketColumnizer.GetPriority(path, loglines);
+
+        var line = logFileReader.GetLogLineMemory(0);
+        var columns = squareBracketColumnizer.SplitLine(null, line);
+
+        Assert.Multiple(() =>
+        {
+            Assert.That(columns.ColumnValues[0].FullValue.ToString(), Is.EqualTo("[WARN ]"));
+            Assert.That(columns.ColumnValues[1].FullValue.ToString(), Is.EqualTo("[18/08-06:06:18.436]"));
+            Assert.That(columns.ColumnValues[2].FullValue.ToString(), Is.EqualTo("[ProgramName/MethodName[41]]"));
+            Assert.That(columns.ColumnValues[^1].FullValue.ToString().Trim(), Is.EqualTo("About to run."));
+        });
+    }
 }

src/LogExpert.Tests/LogExpert.Tests.csproj

@@ -48,6 +48,9 @@
     <Content Include="TestData\JsonColumnizerTest_01.txt">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>
+    <Content Include="TestData\SquareBracketColumnizerTest_06.txt">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
     <Content Include="TestData\SquareBracketColumnizerTest_05.txt">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>

src/LogExpert.Tests/TestData/SquareBracketColumnizerTest_06.txt

@@ -0,0 +1,5 @@
+[WARN ][18/08-06:06:18.436][ProgramName/MethodName[41]] About to run.
+[WARN ][18/08-06:07:15.436][ProgramName/MethodName[771]] Finishing Application.
+[WARN ][18/08-06:07:15.436][ProgramName/MethodName[771]]] Finishing Application.
+[WARN ][18/08-06:07:15.436][ProgramName/MethodName[771]]]] Finishing Application.
+[WARN ][18/08-06:07:15.436][ProgramName/MethodName[771]]]]] Finishing Application.

src/PluginRegistry/PluginHashGenerator.Generated.cs

@@ -10,35 +10,35 @@ public static partial class PluginValidator
 {
     /// <summary>
     /// Gets pre-calculated SHA256 hashes for built-in plugins.
-    /// Generated: 2026-06-17 19:50:55 UTC
+    /// Generated: 2026-06-19 10:20:03 UTC
     /// Configuration: Release
     /// Plugin count: 21
     /// </summary>
     public static Dictionary<string, string> GetBuiltInPluginHashes()
     {
         return new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
         {
-                         ["AutoColumnizer.dll"] = "EF107873A2547134F2E0D1546125F266D0E7B06DF3AD5F69937C3E4B9D0A1EF5",
+                         ["AutoColumnizer.dll"] = "FE5B41F852198756D6E7F565DFF531DB842260FC0AA8AC9E0FFBE39204FE5D15",
             ["BouncyCastle.Cryptography.dll"] = "E5EEAF6D263C493619982FD3638E6135077311D08C961E1FE128F9107D29EBC6",
             ["BouncyCastle.Cryptography.dll (x86)"] = "E5EEAF6D263C493619982FD3638E6135077311D08C961E1FE128F9107D29EBC6",
-            ["CsvColumnizer.dll"] = "83A307BF2B861420AEF66DB1F17AE2A7F643AD5A9962EA14134E728964FE408D",
-            ["CsvColumnizer.dll (x86)"] = "83A307BF2B861420AEF66DB1F17AE2A7F643AD5A9962EA14134E728964FE408D",
-            ["DefaultPlugins.dll"] = "6DAE9C7AD97EE112F516688A5F4448CF167424B048594AAFC5B699CEACDAB610",
-            ["FlashIconHighlighter.dll"] = "961ABD5874FBA5752B46B545A27C24D3A52C7DF395502DC562D8856D9F016A1F",
-            ["GlassfishColumnizer.dll"] = "B40D6A5688DBC4706470BB18715A83524A3552EA5440C2A74C74C8D7C3D9ED25",
-            ["JsonColumnizer.dll"] = "6CA9BFD2EACDB619A556A50ED9D8B6BD833FEB27ABED5F28608555F1C58150FD",
-            ["JsonCompactColumnizer.dll"] = "9B244A519517B3BD511FBC344A108F62E166421992A151458235E843D2AA4EDC",
-            ["Log4jXmlColumnizer.dll"] = "73DA4158CD609E75D1A645E3B34E3ABF6277E8904FC7E9762F8224DC199CCF60",
-            ["LogExpert.Resources.dll"] = "96BD00F6A38F728EBD6315D3192DBE2BD1DEAD5E7823AB2AE129DCC3F338617C",
+            ["CsvColumnizer.dll"] = "10B5DC2422CFC4FA65D880DE0DE800138C9283AB28734A2D0F18431B40515D30",
+            ["CsvColumnizer.dll (x86)"] = "10B5DC2422CFC4FA65D880DE0DE800138C9283AB28734A2D0F18431B40515D30",
+            ["DefaultPlugins.dll"] = "F78E00FED77F20EA408C7D818045F7B37D2CA8BDAA3AB2BE4E15DF162615FE84",
+            ["FlashIconHighlighter.dll"] = "B8BAC28BA72540CD2FA5AC189E7DF2616EB0F51B0D15DDA96688D11D2BB426C1",
+            ["GlassfishColumnizer.dll"] = "90095DFB7B30B88D7477687A9BDCA1B119038AFBFF0216D0B7A852C4F41D66C6",
+            ["JsonColumnizer.dll"] = "9E4F52BB6724451808B43719546CFA520B6FD17C65C231D172099D81DA8E2D0B",
+            ["JsonCompactColumnizer.dll"] = "3FD84C6EB8BB3589F347C33C2B5B272A7BC13995AA32BEC0C67E596BC630B33F",
+            ["Log4jXmlColumnizer.dll"] = "8EE85F16DE33AEA8BEA53B2EEEC8D032C572C5F3885CA07584DCB248D838F441",
+            ["LogExpert.Resources.dll"] = "A4E16709FB669C2617AB6BC910737118B96F484E920FF06357FC85BF8A665A99",
             ["Microsoft.Extensions.DependencyInjection.Abstractions.dll"] = "67FA4325000DB017DC0C35829B416F024F042D24EFB868BCF17A895EE6500A93",
             ["Microsoft.Extensions.DependencyInjection.Abstractions.dll (x86)"] = "67FA4325000DB017DC0C35829B416F024F042D24EFB868BCF17A895EE6500A93",
             ["Microsoft.Extensions.Logging.Abstractions.dll"] = "BB853130F5AFAF335BE7858D661F8212EC653835100F5A4E3AA2C66A4D4F685D",
             ["Microsoft.Extensions.Logging.Abstractions.dll (x86)"] = "BB853130F5AFAF335BE7858D661F8212EC653835100F5A4E3AA2C66A4D4F685D",
-            ["RegexColumnizer.dll"] = "8D9D58E2659E0A29306BC6614DEEC33314EA6293F62D861F6794587B7FC78D68",
-            ["SftpFileSystem.dll"] = "22A52842AD7B2FB727EC9F6F1FB3010028F55538839A8E1899D98AF74A522438",
-            ["SftpFileSystem.dll (x86)"] = "C37E1E8B463FB9373CDD437FD4366DDE9E15D19DED2420D59057E21F7F203DC5",
-            ["SftpFileSystem.Resources.dll"] = "41DF1B52E15926627AB8E178F5BF5692C325082749E8FE1959E1BC1DDF1E90FC",
-            ["SftpFileSystem.Resources.dll (x86)"] = "41DF1B52E15926627AB8E178F5BF5692C325082749E8FE1959E1BC1DDF1E90FC",
+            ["RegexColumnizer.dll"] = "64EC13C21963405A42BBB41F42A886791B8E97910E660D0C8D244231454A8871",
+            ["SftpFileSystem.dll"] = "962DBA38A676D7DA93B069F13765F9AD7C5E955F50C22BA46A356DE4B9556F88",
+            ["SftpFileSystem.dll (x86)"] = "B872D63BA65261B943411098B46115A4940CC66F03E4807B561F6D20DB1F5F17",
+            ["SftpFileSystem.Resources.dll"] = "E8039F5F595F9D30731ECD3A67116CEC41963CA4AA51BF4E0368CC6BE9FFE9D3",
+            ["SftpFileSystem.Resources.dll (x86)"] = "E8039F5F595F9D30731ECD3A67116CEC41963CA4AA51BF4E0368CC6BE9FFE9D3",
 
         };
     }