Implement phase 5 critical branch extraction

src/RolemasterDb.App/Data/RolemasterDbContext.cs

@@ -14,6 +14,7 @@ public sealed class RolemasterDbContext(DbContextOptions<RolemasterDbContext> op
     public DbSet<CriticalColumn> CriticalColumns => Set<CriticalColumn>();
     public DbSet<CriticalRollBand> CriticalRollBands => Set<CriticalRollBand>();
     public DbSet<CriticalResult> CriticalResults => Set<CriticalResult>();
+    public DbSet<CriticalBranch> CriticalBranches => Set<CriticalBranch>();
 
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
@@ -78,5 +79,13 @@ public sealed class RolemasterDbContext(DbContextOptions<RolemasterDbContext> op
             entity.HasIndex(item => new { item.CriticalTableId, item.CriticalGroupId, item.CriticalColumnId, item.CriticalRollBandId }).IsUnique();
             entity.Property(item => item.ParseStatus).HasMaxLength(32);
         });
+
+        modelBuilder.Entity<CriticalBranch>(entity =>
+        {
+            entity.HasIndex(item => item.CriticalResultId);
+            entity.HasIndex(item => new { item.CriticalResultId, item.SortOrder });
+            entity.Property(item => item.BranchKind).HasMaxLength(32);
+            entity.Property(item => item.ConditionKey).HasMaxLength(128);
+        });
     }
 }

src/RolemasterDb.App/Data/RolemasterDbInitializer.cs

@@ -11,6 +11,7 @@ public static class RolemasterDbInitializer
         await using var dbContext = await dbFactory.CreateDbContextAsync(cancellationToken);
 
         await dbContext.Database.EnsureCreatedAsync(cancellationToken);
+        await RolemasterDbSchemaUpgrader.EnsureLatestAsync(dbContext, cancellationToken);
 
         if (await dbContext.AttackTables.AnyAsync(cancellationToken))
         {

src/RolemasterDb.App/Data/RolemasterDbSchemaUpgrader.cs

@@ -0,0 +1,43 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace RolemasterDb.App.Data;
+
+public static class RolemasterDbSchemaUpgrader
+{
+    public static async Task EnsureLatestAsync(RolemasterDbContext dbContext, CancellationToken cancellationToken = default)
+    {
+        await dbContext.Database.ExecuteSqlRawAsync(
+            """
+            CREATE TABLE IF NOT EXISTS "CriticalBranches" (
+                "Id" INTEGER NOT NULL CONSTRAINT "PK_CriticalBranches" PRIMARY KEY AUTOINCREMENT,
+                "CriticalResultId" INTEGER NOT NULL,
+                "BranchKind" TEXT NOT NULL,
+                "ConditionKey" TEXT NULL,
+                "ConditionText" TEXT NOT NULL,
+                "ConditionJson" TEXT NOT NULL,
+                "RawText" TEXT NOT NULL,
+                "DescriptionText" TEXT NOT NULL,
+                "RawAffixText" TEXT NULL,
+                "ParsedJson" TEXT NOT NULL,
+                "SortOrder" INTEGER NOT NULL,
+                CONSTRAINT "FK_CriticalBranches_CriticalResults_CriticalResultId"
+                    FOREIGN KEY ("CriticalResultId") REFERENCES "CriticalResults" ("Id") ON DELETE CASCADE
+            );
+            """,
+            cancellationToken);
+
+        await dbContext.Database.ExecuteSqlRawAsync(
+            """
+            CREATE INDEX IF NOT EXISTS "IX_CriticalBranches_CriticalResultId"
+                ON "CriticalBranches" ("CriticalResultId");
+            """,
+            cancellationToken);
+
+        await dbContext.Database.ExecuteSqlRawAsync(
+            """
+            CREATE INDEX IF NOT EXISTS "IX_CriticalBranches_CriticalResultId_SortOrder"
+                ON "CriticalBranches" ("CriticalResultId", "SortOrder");
+            """,
+            cancellationToken);
+    }
+}

src/RolemasterDb.App/Domain/CriticalBranch.cs

@@ -0,0 +1,17 @@
+namespace RolemasterDb.App.Domain;
+
+public sealed class CriticalBranch
+{
+    public int Id { get; set; }
+    public int CriticalResultId { get; set; }
+    public string BranchKind { get; set; } = "conditional";
+    public string? ConditionKey { get; set; }
+    public string ConditionText { get; set; } = string.Empty;
+    public string ConditionJson { get; set; } = "{}";
+    public string RawText { get; set; } = string.Empty;
+    public string DescriptionText { get; set; } = string.Empty;
+    public string? RawAffixText { get; set; }
+    public string ParsedJson { get; set; } = "{}";
+    public int SortOrder { get; set; }
+    public CriticalResult CriticalResult { get; set; } = null!;
+}

src/RolemasterDb.App/Domain/CriticalResult.cs

@@ -16,4 +16,5 @@ public sealed class CriticalResult
     public CriticalGroup? CriticalGroup { get; set; }
     public CriticalColumn CriticalColumn { get; set; } = null!;
     public CriticalRollBand CriticalRollBand { get; set; } = null!;
+    public List<CriticalBranch> Branches { get; set; } = [];
 }

src/RolemasterDb.ImportTool.Tests/StandardCriticalTableParserIntegrationTests.cs

@@ -1,3 +1,6 @@
+using Microsoft.EntityFrameworkCore;
+
+using RolemasterDb.App.Data;
 using RolemasterDb.ImportTool.Parsing;
 
 namespace RolemasterDb.ImportTool.Tests;
@@ -249,6 +252,83 @@ public sealed class StandardCriticalTableParserIntegrationTests
         Assert.Contains("Blast goes in through foe's eye", superSlaying.DescriptionText, StringComparison.OrdinalIgnoreCase);
     }
 
+    [Fact]
+    public async Task Slash_branch_cells_split_base_text_from_conditional_affix_branches()
+    {
+        var entry = LoadManifest().Tables.Single(item => string.Equals(item.Slug, "slash", StringComparison.Ordinal));
+        var parseResult = await LoadParseResultAsync(entry);
+        var result = parseResult.Table.Results.Single(item =>
+            item.GroupKey is null &&
+            string.Equals(item.RollBandLabel, "36-45", StringComparison.Ordinal) &&
+            string.Equals(item.ColumnKey, "B", StringComparison.Ordinal));
+
+        Assert.Equal("Strike foe in shin. If he doesn't have greaves, you slash open foe's shin.", result.DescriptionText);
+        Assert.Null(result.RawAffixText);
+        Assert.DoesNotContain("with leg greaves:", result.RawCellText, StringComparison.OrdinalIgnoreCase);
+        Assert.Equal(2, result.Branches.Count);
+
+        var withGreaves = result.Branches.Single(item => string.Equals(item.ConditionText, "with leg greaves", StringComparison.OrdinalIgnoreCase));
+        var withoutGreaves = result.Branches.Single(item => string.Equals(item.ConditionText, "w/o leg greaves", StringComparison.OrdinalIgnoreCase));
+
+        Assert.Equal("with_leg_greaves", withGreaves.ConditionKey);
+        Assert.Equal("+2H – π", withGreaves.RawAffixText);
+        Assert.Equal(string.Empty, withGreaves.DescriptionText);
+        Assert.Equal("without_leg_greaves", withoutGreaves.ConditionKey);
+        Assert.Equal("+2H – ∫", withoutGreaves.RawAffixText);
+    }
+
+    [Fact]
+    public async Task Impact_branch_cells_keep_prose_branch_text_separate_from_affix_branch_text()
+    {
+        var entry = LoadManifest().Tables.Single(item => string.Equals(item.Slug, "impact", StringComparison.Ordinal));
+        var parseResult = await LoadParseResultAsync(entry);
+        var result = parseResult.Table.Results.Single(item =>
+            item.GroupKey is null &&
+            string.Equals(item.RollBandLabel, "86-90", StringComparison.Ordinal) &&
+            string.Equals(item.ColumnKey, "D", StringComparison.Ordinal));
+
+        Assert.Equal(
+            "Onslaught to foe's midsection. Organs are damaged and foe throws up blood. Foe's abdomen is seriously damaged. He falls and should not be moved.",
+            result.DescriptionText);
+        Assert.Null(result.RawAffixText);
+        Assert.Equal(2, result.Branches.Count);
+
+        var withArmor = result.Branches.Single(item => string.Equals(item.ConditionText, "with abdominal armor", StringComparison.OrdinalIgnoreCase));
+        var withoutArmor = result.Branches.Single(item => string.Equals(item.ConditionText, "w/o abdominal armor", StringComparison.OrdinalIgnoreCase));
+
+        Assert.Equal("12∑", withArmor.RawAffixText);
+        Assert.Equal(string.Empty, withArmor.DescriptionText);
+        Assert.Null(withoutArmor.RawAffixText);
+        Assert.Equal("dies in 6 rounds", withoutArmor.DescriptionText);
+    }
+
+    [Fact]
+    public async Task Loader_upgrades_existing_sqlite_and_persists_branch_rows()
+    {
+        var entry = LoadManifest().Tables.Single(item => string.Equals(item.Slug, "slash", StringComparison.Ordinal));
+        var parseResult = await LoadParseResultAsync(entry);
+        var databasePath = CreateTemporaryDatabaseCopy();
+        var loader = new CriticalImportLoader(databasePath);
+
+        await loader.LoadAsync(parseResult.Table);
+
+        await using var dbContext = CreateDbContext(databasePath);
+        var result = await dbContext.CriticalResults
+            .Include(item => item.CriticalTable)
+            .Include(item => item.CriticalColumn)
+            .Include(item => item.CriticalRollBand)
+            .Include(item => item.Branches)
+            .SingleAsync(item =>
+                item.CriticalTable.Slug == "slash" &&
+                item.CriticalColumn.ColumnKey == "B" &&
+                item.CriticalRollBand.Label == "36-45");
+
+        Assert.DoesNotContain("with leg greaves:", result.RawCellText, StringComparison.OrdinalIgnoreCase);
+        Assert.Equal(2, result.Branches.Count);
+        Assert.Contains(result.Branches, item => item.ConditionKey == "with_leg_greaves" && item.RawAffixText == "+2H – π");
+        Assert.Contains(result.Branches, item => item.ConditionKey == "without_leg_greaves" && item.RawAffixText == "+2H – ∫");
+    }
+
     private static async Task<CriticalTableParseResult> LoadParseResultAsync(CriticalImportManifestEntry entry)
     {
         var xmlPath = Path.Combine(GetArtifactCacheRoot(), $"{entry.Slug}.xml");
@@ -278,6 +358,22 @@ public sealed class StandardCriticalTableParserIntegrationTests
         return cacheRoot;
     }
 
+    private static RolemasterDbContext CreateDbContext(string databasePath)
+    {
+        var options = new DbContextOptionsBuilder<RolemasterDbContext>()
+            .UseSqlite($"Data Source={databasePath}")
+            .Options;
+
+        return new RolemasterDbContext(options);
+    }
+
+    private static string CreateTemporaryDatabaseCopy()
+    {
+        var databasePath = Path.Combine(GetArtifactCacheRoot(), $"rolemaster-{Guid.NewGuid():N}.db");
+        File.Copy(Path.Combine(GetRepositoryRoot(), "src", "RolemasterDb.App", "rolemaster.db"), databasePath, true);
+        return databasePath;
+    }
+
     private static string GetRepositoryRoot()
     {
         var probe = new DirectoryInfo(AppContext.BaseDirectory);

src/RolemasterDb.ImportTool/CriticalImportLoader.cs

@@ -12,10 +12,12 @@ public sealed class CriticalImportLoader(string databasePath)
     {
         await using var dbContext = CreateDbContext();
         await dbContext.Database.EnsureCreatedAsync(cancellationToken);
+        await RolemasterDbSchemaUpgrader.EnsureLatestAsync(dbContext, cancellationToken);
 
         var removedTableCount = await dbContext.CriticalTables.CountAsync(cancellationToken);
         await using var transaction = await dbContext.Database.BeginTransactionAsync(cancellationToken);
 
+        await dbContext.CriticalBranches.ExecuteDeleteAsync(cancellationToken);
         await dbContext.CriticalResults.ExecuteDeleteAsync(cancellationToken);
         await dbContext.CriticalGroups.ExecuteDeleteAsync(cancellationToken);
         await dbContext.CriticalColumns.ExecuteDeleteAsync(cancellationToken);
@@ -30,6 +32,7 @@ public sealed class CriticalImportLoader(string databasePath)
     {
         await using var dbContext = CreateDbContext();
         await dbContext.Database.EnsureCreatedAsync(cancellationToken);
+        await RolemasterDbSchemaUpgrader.EnsureLatestAsync(dbContext, cancellationToken);
         await using var transaction = await dbContext.Database.BeginTransactionAsync(cancellationToken);
 
         await DeleteTableAsync(dbContext, table.Slug, cancellationToken);
@@ -86,7 +89,21 @@ public sealed class CriticalImportLoader(string databasePath)
                 DescriptionText = item.DescriptionText,
                 RawAffixText = item.RawAffixText,
                 ParsedJson = "{}",
-                ParseStatus = "raw"
+                ParseStatus = "raw",
+                Branches = item.Branches
+                    .Select(branch => new CriticalBranch
+                    {
+                        BranchKind = branch.BranchKind,
+                        ConditionKey = branch.ConditionKey,
+                        ConditionText = branch.ConditionText,
+                        ConditionJson = "{}",
+                        RawText = branch.RawText,
+                        DescriptionText = branch.DescriptionText,
+                        RawAffixText = branch.RawAffixText,
+                        ParsedJson = "{}",
+                        SortOrder = branch.SortOrder
+                    })
+                    .ToList()
             })
             .ToList();
 
@@ -121,6 +138,10 @@ public sealed class CriticalImportLoader(string databasePath)
             return;
         }
 
+        await dbContext.CriticalBranches
+            .Where(item => item.CriticalResult.CriticalTableId == tableId.Value)
+            .ExecuteDeleteAsync(cancellationToken);
+
         await dbContext.CriticalResults
             .Where(item => item.CriticalTableId == tableId.Value)
             .ExecuteDeleteAsync(cancellationToken);

src/RolemasterDb.ImportTool/Parsing/ColumnarCellEntry.cs

@@ -0,0 +1,10 @@
+namespace RolemasterDb.ImportTool.Parsing;
+
+internal sealed class ColumnarCellEntry(string? groupKey, string rollBandLabel, int rowIndex, string columnKey, List<string> lines)
+{
+    public string? GroupKey { get; } = groupKey;
+    public string RollBandLabel { get; } = rollBandLabel;
+    public int RowIndex { get; } = rowIndex;
+    public string ColumnKey { get; } = columnKey;
+    public List<string> Lines { get; } = lines;
+}

src/RolemasterDb.ImportTool/Parsing/CriticalCellParseContent.cs

@@ -0,0 +1,17 @@
+namespace RolemasterDb.ImportTool.Parsing;
+
+internal sealed class CriticalCellParseContent(
+    IReadOnlyList<string> baseLines,
+    string rawCellText,
+    string descriptionText,
+    string? rawAffixText,
+    IReadOnlyList<ParsedCriticalBranch> branches,
+    IReadOnlyList<string> validationErrors)
+{
+    public IReadOnlyList<string> BaseLines { get; } = baseLines;
+    public string RawCellText { get; } = rawCellText;
+    public string DescriptionText { get; } = descriptionText;
+    public string? RawAffixText { get; } = rawAffixText;
+    public IReadOnlyList<ParsedCriticalBranch> Branches { get; } = branches;
+    public IReadOnlyList<string> ValidationErrors { get; } = validationErrors;
+}

src/RolemasterDb.ImportTool/Parsing/CriticalCellTextParser.cs

@@ -0,0 +1,114 @@
+namespace RolemasterDb.ImportTool.Parsing;
+
+internal static class CriticalCellTextParser
+{
+    internal static CriticalCellParseContent Parse(IReadOnlyList<string> lines, ISet<string> affixLegendSymbols)
+    {
+        var validationErrors = new List<string>();
+        var branchStartIndexes = FindBranchStartIndexes(lines);
+        var baseLineCount = branchStartIndexes.Count == 0 ? lines.Count : branchStartIndexes[0];
+        var baseLines = lines.Take(baseLineCount).ToList();
+        var branches = new List<ParsedCriticalBranch>();
+
+        validationErrors.AddRange(ValidateSegmentCount(baseLines, affixLegendSymbols, "Base content"));
+
+        for (var branchIndex = 0; branchIndex < branchStartIndexes.Count; branchIndex++)
+        {
+            var startIndex = branchStartIndexes[branchIndex];
+            var endIndex = branchIndex == branchStartIndexes.Count - 1
+                ? lines.Count
+                : branchStartIndexes[branchIndex + 1];
+
+            branches.Add(ParseBranch(
+                lines.Skip(startIndex).Take(endIndex - startIndex).ToList(),
+                branchIndex + 1,
+                affixLegendSymbols,
+                validationErrors));
+        }
+
+        var (rawCellText, descriptionText, rawAffixText) = BuildTextSections(baseLines, affixLegendSymbols);
+        return new CriticalCellParseContent(baseLines, rawCellText, descriptionText, rawAffixText, branches, validationErrors);
+    }
+
+    private static ParsedCriticalBranch ParseBranch(
+        IReadOnlyList<string> branchLines,
+        int sortOrder,
+        ISet<string> affixLegendSymbols,
+        List<string> validationErrors)
+    {
+        var firstLine = branchLines[0];
+        var separatorIndex = firstLine.IndexOf(':', StringComparison.Ordinal);
+        var conditionText = CriticalTableParserSupport.CollapseWhitespace(firstLine[..separatorIndex]);
+        var firstPayloadLine = CriticalTableParserSupport.CollapseWhitespace(firstLine[(separatorIndex + 1)..]);
+        var payloadLines = new List<string>();
+
+        if (!string.IsNullOrWhiteSpace(firstPayloadLine))
+        {
+            payloadLines.Add(firstPayloadLine);
+        }
+
+        foreach (var continuationLine in branchLines.Skip(1))
+        {
+            var normalized = CriticalTableParserSupport.CollapseWhitespace(continuationLine);
+            if (!string.IsNullOrWhiteSpace(normalized))
+            {
+                payloadLines.Add(normalized);
+            }
+        }
+
+        validationErrors.AddRange(ValidateSegmentCount(payloadLines, affixLegendSymbols, $"Branch '{conditionText}'"));
+
+        var (_, descriptionText, rawAffixText) = BuildTextSections(payloadLines, affixLegendSymbols);
+        return new ParsedCriticalBranch(
+            "conditional",
+            CriticalTableParserSupport.NormalizeConditionKey(conditionText),
+            conditionText,
+            string.Join(Environment.NewLine, branchLines),
+            descriptionText,
+            rawAffixText,
+            sortOrder);
+    }
+
+    private static List<int> FindBranchStartIndexes(IReadOnlyList<string> lines)
+    {
+        var branchStartIndexes = new List<int>();
+
+        for (var index = 0; index < lines.Count; index++)
+        {
+            if (CriticalTableParserSupport.IsConditionalBranchStartLine(lines[index]))
+            {
+                branchStartIndexes.Add(index);
+            }
+        }
+
+        return branchStartIndexes;
+    }
+
+    private static IReadOnlyList<string> ValidateSegmentCount(
+        IReadOnlyList<string> lines,
+        ISet<string> affixLegendSymbols,
+        string scope)
+    {
+        if (lines.Count == 0)
+        {
+            return [];
+        }
+
+        var segmentCount = CriticalTableParserSupport.CountLineTypeSegments(lines, affixLegendSymbols);
+        return segmentCount > 2
+            ? [$"{scope} interleaves prose and affix lines."]
+            : [];
+    }
+
+    private static (string RawText, string DescriptionText, string? RawAffixText) BuildTextSections(
+        IReadOnlyList<string> lines,
+        ISet<string> affixLegendSymbols)
+    {
+        var rawText = string.Join(Environment.NewLine, lines);
+        var rawAffixLines = lines.Where(line => CriticalTableParserSupport.IsAffixLikeLine(line, affixLegendSymbols)).ToList();
+        var descriptionLines = lines.Where(line => !CriticalTableParserSupport.IsAffixLikeLine(line, affixLegendSymbols)).ToList();
+        var descriptionText = CriticalTableParserSupport.CollapseWhitespace(string.Join(' ', descriptionLines));
+        var rawAffixText = rawAffixLines.Count == 0 ? null : string.Join(Environment.NewLine, rawAffixLines);
+        return (rawText, descriptionText, rawAffixText);
+    }
+}

src/RolemasterDb.ImportTool/Parsing/CriticalTableParserSupport.cs

@@ -169,15 +169,9 @@ internal static class CriticalTableParserSupport
             return true;
         }
 
-        if (value.StartsWith("with ", StringComparison.OrdinalIgnoreCase) ||
-            value.StartsWith("w/o ", StringComparison.OrdinalIgnoreCase) ||
-            value.StartsWith("without ", StringComparison.OrdinalIgnoreCase) ||
-            value.StartsWith("if ", StringComparison.OrdinalIgnoreCase) ||
-            value.StartsWith("while ", StringComparison.OrdinalIgnoreCase) ||
-            value.StartsWith("until ", StringComparison.OrdinalIgnoreCase) ||
-            value.StartsWith("unless ", StringComparison.OrdinalIgnoreCase))
+        if (IsConditionalBranchStartLine(value))
         {
-            return value.Contains(':', StringComparison.Ordinal);
+            return true;
         }
 
         if (affixLegendSymbols.Count > 0 &&
@@ -242,6 +236,23 @@ internal static class CriticalTableParserSupport
     internal static string CollapseWhitespace(string value) =>
         Regex.Replace(value.Trim(), @"\s+", " ");
 
+    internal static bool IsConditionalBranchStartLine(string value)
+    {
+        var normalized = value.Trim();
+        if (!normalized.Contains(':', StringComparison.Ordinal))
+        {
+            return false;
+        }
+
+        return normalized.StartsWith("with ", StringComparison.OrdinalIgnoreCase) ||
+               normalized.StartsWith("w/o ", StringComparison.OrdinalIgnoreCase) ||
+               normalized.StartsWith("without ", StringComparison.OrdinalIgnoreCase) ||
+               normalized.StartsWith("if ", StringComparison.OrdinalIgnoreCase) ||
+               normalized.StartsWith("while ", StringComparison.OrdinalIgnoreCase) ||
+               normalized.StartsWith("until ", StringComparison.OrdinalIgnoreCase) ||
+               normalized.StartsWith("unless ", StringComparison.OrdinalIgnoreCase);
+    }
+
     internal static string NormalizeText(string value) =>
         value
             .Replace('\u00a0', ' ')
@@ -250,6 +261,25 @@ internal static class CriticalTableParserSupport
             .Replace('’', '\'')
             .Trim();
 
+    internal static string? NormalizeConditionKey(string conditionText)
+    {
+        var normalized = CollapseWhitespace(conditionText)
+            .ToLowerInvariant()
+            .Replace("w/o", "without", StringComparison.Ordinal);
+        normalized = Regex.Replace(normalized, @"[^a-z0-9]+", "_");
+        normalized = normalized.Trim('_');
+        return normalized.Length == 0 ? null : normalized;
+    }
+
+    internal static int FindKeyTop(IReadOnlyList<XmlTextFragment> fragments) =>
+        fragments
+            .Where(item =>
+                string.Equals(item.Text, "Key:", StringComparison.OrdinalIgnoreCase) ||
+                item.Text.Contains("must parry", StringComparison.OrdinalIgnoreCase) ||
+                item.Text.Contains("attacker gets", StringComparison.OrdinalIgnoreCase))
+            .Select(item => (int?)item.Top)
+            .Min() ?? int.MaxValue;
+
     internal static HashSet<string> DetectAffixLegendSymbols(IReadOnlyList<XmlTextFragment> fragments, int keyTop)
     {
         if (keyTop == int.MaxValue)
@@ -347,6 +377,138 @@ internal static class CriticalTableParserSupport
         return groups;
     }
 
+    internal static List<RowAnchor> CreateRowAnchors(IReadOnlyList<XmlTextFragment> rowLabelFragments) =>
+        rowLabelFragments
+            .OrderBy(item => item.Top)
+            .Select((item, index) => new RowAnchor(NormalizeRollBandLabel(item.Text), item.Top, index + 1))
+            .ToList();
+
+    internal static List<XmlTextFragment> BuildBodyFragments(
+        IReadOnlyList<XmlTextFragment> fragments,
+        int bodyStartTop,
+        int keyTop,
+        int leftCutoff,
+        IReadOnlyList<RowAnchor> rowAnchors,
+        IReadOnlyCollection<XmlTextFragment> excludedFragments,
+        IReadOnlyList<(string Key, double CenterX)> columnCenters,
+        ISet<string> affixLegendSymbols)
+    {
+        var bodyFragments = fragments
+            .Where(item =>
+                item.Top >= bodyStartTop &&
+                item.Top < keyTop - TopGroupingTolerance &&
+                !IsFooterPageNumberFragment(item, keyTop) &&
+                !IsPotentialRowLabelFragment(item, leftCutoff) &&
+                !rowAnchors.Any(anchor => anchor.Top == item.Top && string.Equals(anchor.Label, NormalizeRollBandLabel(item.Text), StringComparison.OrdinalIgnoreCase)) &&
+                !excludedFragments.Contains(item))
+            .ToList();
+
+        return SplitBoundaryCrossingAffixFragments(bodyFragments, columnCenters, affixLegendSymbols);
+    }
+
+    internal static void RepairLeadingAffixLeakage(List<ColumnarCellEntry> cellEntries, ISet<string> affixLegendSymbols)
+    {
+        var maxRowIndex = cellEntries.Count == 0 ? -1 : cellEntries.Max(item => item.RowIndex);
+        var axes = cellEntries
+            .Select(item => (item.GroupKey, item.ColumnKey))
+            .Distinct()
+            .ToList();
+
+        for (var rowIndex = 0; rowIndex < maxRowIndex; rowIndex++)
+        {
+            foreach (var (groupKey, columnKey) in axes)
+            {
+                var current = cellEntries.SingleOrDefault(item =>
+                    item.RowIndex == rowIndex &&
+                    string.Equals(item.GroupKey, groupKey, StringComparison.Ordinal) &&
+                    string.Equals(item.ColumnKey, columnKey, StringComparison.Ordinal));
+                var next = cellEntries.SingleOrDefault(item =>
+                    item.RowIndex == rowIndex + 1 &&
+                    string.Equals(item.GroupKey, groupKey, StringComparison.Ordinal) &&
+                    string.Equals(item.ColumnKey, columnKey, StringComparison.Ordinal));
+                if (current is null || next is null)
+                {
+                    continue;
+                }
+
+                var leadingAffixCount = 0;
+                while (leadingAffixCount < next.Lines.Count && IsAffixLikeLine(next.Lines[leadingAffixCount], affixLegendSymbols))
+                {
+                    leadingAffixCount++;
+                }
+
+                if (leadingAffixCount == 0 || leadingAffixCount == next.Lines.Count)
+                {
+                    continue;
+                }
+
+                current.Lines.AddRange(next.Lines.Take(leadingAffixCount));
+                next.Lines.RemoveRange(0, leadingAffixCount);
+            }
+        }
+    }
+
+    internal static int ResolveRowBoundaryTop(
+        RowAnchor current,
+        RowAnchor next,
+        IReadOnlyList<(int Top, bool IsAffixLike)> bodyLines)
+    {
+        var linesBetweenLabels = bodyLines
+            .Where(item => item.Top >= current.Top && item.Top < next.Top)
+            .OrderBy(item => item.Top)
+            .ToList();
+
+        for (var index = linesBetweenLabels.Count - 2; index >= 0; index--)
+        {
+            if (linesBetweenLabels[index].IsAffixLike && !linesBetweenLabels[index + 1].IsAffixLike)
+            {
+                return (int)Math.Floor((linesBetweenLabels[index].Top + linesBetweenLabels[index + 1].Top) / 2.0) + 1;
+            }
+        }
+
+        return (int)Math.Floor((current.Top + next.Top) / 2.0) + 1;
+    }
+
+    internal static void BuildParsedArtifacts(
+        IReadOnlyList<ColumnarCellEntry> cellEntries,
+        ISet<string> affixLegendSymbols,
+        List<ParsedCriticalCellArtifact> parsedCells,
+        List<ParsedCriticalResult> parsedResults,
+        List<string> validationErrors)
+    {
+        foreach (var cellEntry in cellEntries)
+        {
+            var content = CriticalCellTextParser.Parse(cellEntry.Lines, affixLegendSymbols);
+            validationErrors.AddRange(content.ValidationErrors.Select(error =>
+                $"Cell '{BuildCellIdentifier(cellEntry)}': {error}"));
+
+            parsedCells.Add(new ParsedCriticalCellArtifact(
+                cellEntry.GroupKey,
+                cellEntry.RollBandLabel,
+                cellEntry.ColumnKey,
+                cellEntry.Lines.ToList(),
+                content.BaseLines,
+                content.RawCellText,
+                content.DescriptionText,
+                content.RawAffixText,
+                content.Branches));
+
+            parsedResults.Add(new ParsedCriticalResult(
+                cellEntry.GroupKey,
+                cellEntry.ColumnKey,
+                cellEntry.RollBandLabel,
+                content.RawCellText,
+                content.DescriptionText,
+                content.RawAffixText,
+                content.Branches));
+        }
+    }
+
+    private static string BuildCellIdentifier(ColumnarCellEntry cellEntry) =>
+        cellEntry.GroupKey is null
+            ? $"{cellEntry.RollBandLabel}/{cellEntry.ColumnKey}"
+            : $"{cellEntry.RollBandLabel}/{cellEntry.GroupKey}/{cellEntry.ColumnKey}";
+
     private static bool LooksLikeSplitRollBandStart(string value) =>
         Regex.IsMatch(value.Trim(), @"^\d{2,3}\s*-$");
 

src/RolemasterDb.ImportTool/Parsing/GroupedVariantCriticalTableParser.cs

@@ -36,13 +36,7 @@ public sealed class GroupedVariantCriticalTableParser
                 groupHeaders.Max(item => item.Top),
                 columnHeaders.Max(item => item.Top))
             + CriticalTableParserSupport.HeaderToBodyMinimumGap;
-        var keyTop = fragments
-            .Where(item =>
-                string.Equals(item.Text, "Key:", StringComparison.OrdinalIgnoreCase) ||
-                item.Text.Contains("must parry", StringComparison.OrdinalIgnoreCase) ||
-                item.Text.Contains("attacker gets", StringComparison.OrdinalIgnoreCase))
-            .Select(item => (int?)item.Top)
-            .Min() ?? int.MaxValue;
+        var keyTop = CriticalTableParserSupport.FindKeyTop(fragments);
         var affixLegendSymbols = CriticalTableParserSupport.DetectAffixLegendSymbols(fragments, keyTop);
         var leftCutoff = columnHeaders.Min(item => item.Left) - 10;
         var rowLabelFragments = CriticalTableParserSupport.FindRowLabelFragments(
@@ -50,11 +44,7 @@ public sealed class GroupedVariantCriticalTableParser
             leftCutoff,
             bodyStartTop,
             keyTop);
-
-        var rowAnchors = rowLabelFragments
-            .OrderBy(item => item.Top)
-            .Select((item, index) => new RowAnchor(CriticalTableParserSupport.NormalizeRollBandLabel(item.Text), item.Top, index + 1))
-            .ToList();
+        var rowAnchors = CriticalTableParserSupport.CreateRowAnchors(rowLabelFragments);
 
         if (rowAnchors.Count == 0)
         {
@@ -65,34 +55,33 @@ public sealed class GroupedVariantCriticalTableParser
             .Select(item => (item.CompositeKey, item.CenterX))
             .ToList();
 
-        var bodyFragments = fragments
-            .Where(item =>
-                item.Top >= bodyStartTop &&
-                item.Top < keyTop - CriticalTableParserSupport.TopGroupingTolerance &&
-                !CriticalTableParserSupport.IsFooterPageNumberFragment(item, keyTop) &&
-                !CriticalTableParserSupport.IsPotentialRowLabelFragment(item, leftCutoff) &&
-                !rowAnchors.Any(anchor => anchor.Top == item.Top && string.Equals(anchor.Label, CriticalTableParserSupport.NormalizeRollBandLabel(item.Text), StringComparison.OrdinalIgnoreCase)) &&
-                !groupHeaders.Contains(item) &&
-                !columnHeaders.Contains(item))
-            .ToList();
-        bodyFragments = CriticalTableParserSupport.SplitBoundaryCrossingAffixFragments(bodyFragments, columnCenters, affixLegendSymbols);
+        var excludedFragments = groupHeaders.Concat(columnHeaders).ToList();
+        var bodyFragments = CriticalTableParserSupport.BuildBodyFragments(
+            fragments,
+            bodyStartTop,
+            keyTop,
+            leftCutoff,
+            rowAnchors,
+            excludedFragments,
+            columnCenters,
+            affixLegendSymbols);
         var bodyLines = CriticalTableParserSupport.BuildBodyLines(bodyFragments, columnCenters, affixLegendSymbols);
 
         var parsedRollBands = rowAnchors
             .Select(anchor => CriticalTableParserSupport.CreateRollBand(anchor.Label, anchor.SortOrder))
             .ToList();
 
-        var cellEntries = new List<CellEntry>();
+        var cellEntries = new List<ColumnarCellEntry>();
 
         for (var rowIndex = 0; rowIndex < rowAnchors.Count; rowIndex++)
         {
             var rowStart = rowIndex == 0
                 ? bodyStartTop
-                : ResolveRowBoundaryTop(rowAnchors[rowIndex - 1], rowAnchors[rowIndex], bodyLines);
+                : CriticalTableParserSupport.ResolveRowBoundaryTop(rowAnchors[rowIndex - 1], rowAnchors[rowIndex], bodyLines);
 
             var rowEnd = rowIndex == rowAnchors.Count - 1
                 ? keyTop - 1
-                : ResolveRowBoundaryTop(rowAnchors[rowIndex], rowAnchors[rowIndex + 1], bodyLines);
+                : CriticalTableParserSupport.ResolveRowBoundaryTop(rowAnchors[rowIndex], rowAnchors[rowIndex + 1], bodyLines);
 
             var rowFragments = bodyFragments
                 .Where(item => item.Top >= rowStart && item.Top < rowEnd)
@@ -112,7 +101,7 @@ public sealed class GroupedVariantCriticalTableParser
                     continue;
                 }
 
-                cellEntries.Add(new CellEntry(
+                cellEntries.Add(new ColumnarCellEntry(
                     anchor.GroupKey,
                     rowAnchors[rowIndex].Label,
                     rowIndex,
@@ -121,45 +110,11 @@ public sealed class GroupedVariantCriticalTableParser
             }
         }
 
-        RepairLeadingAffixLeakage(cellEntries, affixLegendSymbols);
+        CriticalTableParserSupport.RepairLeadingAffixLeakage(cellEntries, affixLegendSymbols);
 
         var parsedCells = new List<ParsedCriticalCellArtifact>();
         var parsedResults = new List<ParsedCriticalResult>();
-
-        foreach (var cellEntry in cellEntries
-                     .OrderBy(item => item.RowIndex)
-                     .ThenBy(item => item.GroupKey, StringComparer.Ordinal)
-                     .ThenBy(item => item.ColumnKey, StringComparer.Ordinal))
-        {
-            var segmentCount = CriticalTableParserSupport.CountLineTypeSegments(cellEntry.Lines, affixLegendSymbols);
-            if (segmentCount > 2)
-            {
-                validationErrors.Add($"Cell '{cellEntry.RollBandLabel}/{cellEntry.GroupKey}/{cellEntry.ColumnKey}' interleaves prose and affix lines.");
-            }
-
-            var rawAffixLines = cellEntry.Lines.Where(line => CriticalTableParserSupport.IsAffixLikeLine(line, affixLegendSymbols)).ToList();
-            var descriptionLines = cellEntry.Lines.Where(line => !CriticalTableParserSupport.IsAffixLikeLine(line, affixLegendSymbols)).ToList();
-            var rawCellText = string.Join(Environment.NewLine, cellEntry.Lines);
-            var descriptionText = CriticalTableParserSupport.CollapseWhitespace(string.Join(' ', descriptionLines));
-            var rawAffixText = rawAffixLines.Count == 0 ? null : string.Join(Environment.NewLine, rawAffixLines);
-
-            parsedCells.Add(new ParsedCriticalCellArtifact(
-                cellEntry.GroupKey,
-                cellEntry.RollBandLabel,
-                cellEntry.ColumnKey,
-                cellEntry.Lines,
-                rawCellText,
-                descriptionText,
-                rawAffixText));
-
-            parsedResults.Add(new ParsedCriticalResult(
-                cellEntry.GroupKey,
-                cellEntry.ColumnKey,
-                cellEntry.RollBandLabel,
-                rawCellText,
-                descriptionText,
-                rawAffixText));
-        }
+        CriticalTableParserSupport.BuildParsedArtifacts(cellEntries, affixLegendSymbols, parsedCells, parsedResults, validationErrors);
 
         var expectedCellCount = rowAnchors.Count * ExpectedGroups.Length * ExpectedColumns.Length;
         if (parsedCells.Count != expectedCellCount)
@@ -235,72 +190,4 @@ public sealed class GroupedVariantCriticalTableParser
 
         throw new InvalidOperationException("Could not find the grouped-variant column header row in the XML artifact.");
     }
-
-    private static void RepairLeadingAffixLeakage(List<CellEntry> cellEntries, ISet<string> affixLegendSymbols)
-    {
-        var maxRowIndex = cellEntries.Count == 0 ? -1 : cellEntries.Max(item => item.RowIndex);
-        var axes = cellEntries
-            .Select(item => (item.GroupKey, item.ColumnKey))
-            .Distinct()
-            .ToList();
-
-        for (var rowIndex = 0; rowIndex < maxRowIndex; rowIndex++)
-        {
-            foreach (var (groupKey, columnKey) in axes)
-            {
-                var current = cellEntries.SingleOrDefault(item => item.RowIndex == rowIndex && item.GroupKey == groupKey && item.ColumnKey == columnKey);
-                var next = cellEntries.SingleOrDefault(item => item.RowIndex == rowIndex + 1 && item.GroupKey == groupKey && item.ColumnKey == columnKey);
-                if (current is null || next is null)
-                {
-                    continue;
-                }
-
-                var leadingAffixCount = 0;
-                while (leadingAffixCount < next.Lines.Count && CriticalTableParserSupport.IsAffixLikeLine(next.Lines[leadingAffixCount], affixLegendSymbols))
-                {
-                    leadingAffixCount++;
-                }
-
-                if (leadingAffixCount == 0 || leadingAffixCount == next.Lines.Count)
-                {
-                    continue;
-                }
-
-                current.Lines.AddRange(next.Lines.Take(leadingAffixCount));
-                next.Lines.RemoveRange(0, leadingAffixCount);
-            }
-        }
-    }
-
-    private static int ResolveRowBoundaryTop(
-        RowAnchor current,
-        RowAnchor next,
-        IReadOnlyList<(int Top, bool IsAffixLike)> bodyLines)
-    {
-        var linesBetweenLabels = bodyLines
-            .Where(item => item.Top >= current.Top && item.Top < next.Top)
-            .OrderBy(item => item.Top)
-            .ToList();
-
-        for (var index = linesBetweenLabels.Count - 2; index >= 0; index--)
-        {
-            if (linesBetweenLabels[index].IsAffixLike && !linesBetweenLabels[index + 1].IsAffixLike)
-            {
-                return (int)Math.Floor((linesBetweenLabels[index].Top + linesBetweenLabels[index + 1].Top) / 2.0) + 1;
-            }
-        }
-
-        return (int)Math.Floor((current.Top + next.Top) / 2.0) + 1;
-    }
-
-    private sealed record RowAnchor(string Label, int Top, int SortOrder);
-
-    private sealed class CellEntry(string groupKey, string rollBandLabel, int rowIndex, string columnKey, List<string> lines)
-    {
-        public string GroupKey { get; } = groupKey;
-        public string RollBandLabel { get; } = rollBandLabel;
-        public int RowIndex { get; } = rowIndex;
-        public string ColumnKey { get; } = columnKey;
-        public List<string> Lines { get; } = lines;
-    }
 }

src/RolemasterDb.ImportTool/Parsing/ParsedCriticalBranch.cs

@@ -0,0 +1,19 @@
+namespace RolemasterDb.ImportTool.Parsing;
+
+public sealed class ParsedCriticalBranch(
+    string branchKind,
+    string? conditionKey,
+    string conditionText,
+    string rawText,
+    string descriptionText,
+    string? rawAffixText,
+    int sortOrder)
+{
+    public string BranchKind { get; } = branchKind;
+    public string? ConditionKey { get; } = conditionKey;
+    public string ConditionText { get; } = conditionText;
+    public string RawText { get; } = rawText;
+    public string DescriptionText { get; } = descriptionText;
+    public string? RawAffixText { get; } = rawAffixText;
+    public int SortOrder { get; } = sortOrder;
+}

src/RolemasterDb.ImportTool/Parsing/ParsedCriticalCellArtifact.cs

@@ -5,15 +5,19 @@ public sealed class ParsedCriticalCellArtifact(
     string rollBandLabel,
     string columnKey,
     IReadOnlyList<string> lines,
+    IReadOnlyList<string> baseLines,
     string rawCellText,
     string descriptionText,
-    string? rawAffixText)
+    string? rawAffixText,
+    IReadOnlyList<ParsedCriticalBranch> branches)
 {
     public string? GroupKey { get; } = groupKey;
     public string RollBandLabel { get; } = rollBandLabel;
     public string ColumnKey { get; } = columnKey;
     public IReadOnlyList<string> Lines { get; } = lines;
+    public IReadOnlyList<string> BaseLines { get; } = baseLines;
     public string RawCellText { get; } = rawCellText;
     public string DescriptionText { get; } = descriptionText;
     public string? RawAffixText { get; } = rawAffixText;
+    public IReadOnlyList<ParsedCriticalBranch> Branches { get; } = branches;
 }

src/RolemasterDb.ImportTool/Parsing/ParsedCriticalResult.cs

@@ -6,7 +6,8 @@ public sealed class ParsedCriticalResult(
     string rollBandLabel,
     string rawCellText,
     string descriptionText,
-    string? rawAffixText)
+    string? rawAffixText,
+    IReadOnlyList<ParsedCriticalBranch> branches)
 {
     public string? GroupKey { get; } = groupKey;
     public string ColumnKey { get; } = columnKey;
@@ -14,4 +15,5 @@ public sealed class ParsedCriticalResult(
     public string RawCellText { get; } = rawCellText;
     public string DescriptionText { get; } = descriptionText;
     public string? RawAffixText { get; } = rawAffixText;
+    public IReadOnlyList<ParsedCriticalBranch> Branches { get; } = branches;
 }

src/RolemasterDb.ImportTool/Parsing/RowAnchor.cs

@@ -0,0 +1,3 @@
+namespace RolemasterDb.ImportTool.Parsing;
+
+internal sealed record RowAnchor(string Label, int Top, int SortOrder);

src/RolemasterDb.ImportTool/Parsing/StandardCriticalTableParser.cs

@@ -15,13 +15,7 @@ public sealed class StandardCriticalTableParser
             .ToList();
 
         var bodyStartTop = headerFragments.Max(item => item.Top) + CriticalTableParserSupport.HeaderToBodyMinimumGap;
-        var keyTop = fragments
-            .Where(item =>
-                string.Equals(item.Text, "Key:", StringComparison.OrdinalIgnoreCase) ||
-                item.Text.Contains("must parry", StringComparison.OrdinalIgnoreCase) ||
-                item.Text.Contains("attacker gets", StringComparison.OrdinalIgnoreCase))
-            .Select(item => (int?)item.Top)
-            .Min() ?? int.MaxValue;
+        var keyTop = CriticalTableParserSupport.FindKeyTop(fragments);
         var affixLegendSymbols = CriticalTableParserSupport.DetectAffixLegendSymbols(fragments, keyTop);
         var leftCutoff = headerFragments.Min(item => item.Left) - 10;
         var rowLabelFragments = CriticalTableParserSupport.FindRowLabelFragments(
@@ -29,44 +23,39 @@ public sealed class StandardCriticalTableParser
             leftCutoff,
             bodyStartTop,
             keyTop);
-
-        var rowAnchors = rowLabelFragments
-            .OrderBy(item => item.Top)
-            .Select((item, index) => new RowAnchor(CriticalTableParserSupport.NormalizeRollBandLabel(item.Text), item.Top, index + 1))
-            .ToList();
+        var rowAnchors = CriticalTableParserSupport.CreateRowAnchors(rowLabelFragments);
 
         if (rowAnchors.Count == 0)
         {
             validationErrors.Add("No roll-band labels were found in the XML artifact.");
         }
 
-        var bodyFragments = fragments
-            .Where(item =>
-                item.Top >= bodyStartTop &&
-                item.Top < keyTop - CriticalTableParserSupport.TopGroupingTolerance &&
-                !CriticalTableParserSupport.IsFooterPageNumberFragment(item, keyTop) &&
-                !CriticalTableParserSupport.IsPotentialRowLabelFragment(item, leftCutoff) &&
-                !rowAnchors.Any(anchor => anchor.Top == item.Top && string.Equals(anchor.Label, CriticalTableParserSupport.NormalizeRollBandLabel(item.Text), StringComparison.OrdinalIgnoreCase)) &&
-                !headerFragments.Contains(item))
-            .ToList();
-        bodyFragments = CriticalTableParserSupport.SplitBoundaryCrossingAffixFragments(bodyFragments, columnCenters, affixLegendSymbols);
+        var bodyFragments = CriticalTableParserSupport.BuildBodyFragments(
+            fragments,
+            bodyStartTop,
+            keyTop,
+            leftCutoff,
+            rowAnchors,
+            headerFragments,
+            columnCenters,
+            affixLegendSymbols);
         var bodyLines = CriticalTableParserSupport.BuildBodyLines(bodyFragments, columnCenters, affixLegendSymbols);
 
         var parsedRollBands = rowAnchors
             .Select(anchor => CriticalTableParserSupport.CreateRollBand(anchor.Label, anchor.SortOrder))
             .ToList();
 
-        var cellEntries = new List<CellEntry>();
+        var cellEntries = new List<ColumnarCellEntry>();
 
         for (var rowIndex = 0; rowIndex < rowAnchors.Count; rowIndex++)
         {
             var rowStart = rowIndex == 0
                 ? bodyStartTop
-                : ResolveRowBoundaryTop(rowAnchors[rowIndex - 1], rowAnchors[rowIndex], bodyLines);
+                : CriticalTableParserSupport.ResolveRowBoundaryTop(rowAnchors[rowIndex - 1], rowAnchors[rowIndex], bodyLines);
 
             var rowEnd = rowIndex == rowAnchors.Count - 1
                 ? keyTop - 1
-                : ResolveRowBoundaryTop(rowAnchors[rowIndex], rowAnchors[rowIndex + 1], bodyLines);
+                : CriticalTableParserSupport.ResolveRowBoundaryTop(rowAnchors[rowIndex], rowAnchors[rowIndex + 1], bodyLines);
 
             var rowFragments = bodyFragments
                 .Where(item => item.Top >= rowStart && item.Top < rowEnd)
@@ -86,7 +75,8 @@ public sealed class StandardCriticalTableParser
                     continue;
                 }
 
-                cellEntries.Add(new CellEntry(
+                cellEntries.Add(new ColumnarCellEntry(
+                    null,
                     rowAnchors[rowIndex].Label,
                     rowIndex,
                     columnAnchor.Key,
@@ -94,44 +84,11 @@ public sealed class StandardCriticalTableParser
             }
         }
 
-        RepairLeadingAffixLeakage(cellEntries, affixLegendSymbols);
+        CriticalTableParserSupport.RepairLeadingAffixLeakage(cellEntries, affixLegendSymbols);
 
         var parsedCells = new List<ParsedCriticalCellArtifact>();
         var parsedResults = new List<ParsedCriticalResult>();
-
-        foreach (var cellEntry in cellEntries.OrderBy(item => item.RowIndex).ThenBy(item => item.ColumnKey))
-        {
-            var segmentCount = CriticalTableParserSupport.CountLineTypeSegments(cellEntry.Lines, affixLegendSymbols);
-
-            if (segmentCount > 2)
-            {
-                validationErrors.Add(
-                    $"Cell '{cellEntry.RollBandLabel}/{cellEntry.ColumnKey}' interleaves prose and affix lines.");
-            }
-
-            var rawAffixLines = cellEntry.Lines.Where(line => CriticalTableParserSupport.IsAffixLikeLine(line, affixLegendSymbols)).ToList();
-            var descriptionLines = cellEntry.Lines.Where(line => !CriticalTableParserSupport.IsAffixLikeLine(line, affixLegendSymbols)).ToList();
-            var rawCellText = string.Join(Environment.NewLine, cellEntry.Lines);
-            var descriptionText = CriticalTableParserSupport.CollapseWhitespace(string.Join(' ', descriptionLines));
-            var rawAffixText = rawAffixLines.Count == 0 ? null : string.Join(Environment.NewLine, rawAffixLines);
-
-            parsedCells.Add(new ParsedCriticalCellArtifact(
-                null,
-                cellEntry.RollBandLabel,
-                cellEntry.ColumnKey,
-                cellEntry.Lines,
-                rawCellText,
-                descriptionText,
-                rawAffixText));
-
-            parsedResults.Add(new ParsedCriticalResult(
-                null,
-                cellEntry.ColumnKey,
-                cellEntry.RollBandLabel,
-                rawCellText,
-                descriptionText,
-                rawAffixText));
-        }
+        CriticalTableParserSupport.BuildParsedArtifacts(cellEntries, affixLegendSymbols, parsedCells, parsedResults, validationErrors);
 
         if (columnCenters.Count != 5)
         {
@@ -185,68 +142,4 @@ public sealed class StandardCriticalTableParser
 
         throw new InvalidOperationException("Could not find the standard-table A-E header row in the XML artifact.");
     }
-
-    private static void RepairLeadingAffixLeakage(List<CellEntry> cellEntries, ISet<string> affixLegendSymbols)
-    {
-        var maxRowIndex = cellEntries.Count == 0 ? -1 : cellEntries.Max(item => item.RowIndex);
-        var columnKeys = cellEntries.Select(item => item.ColumnKey).Distinct(StringComparer.OrdinalIgnoreCase).ToList();
-
-        for (var rowIndex = 0; rowIndex < maxRowIndex; rowIndex++)
-        {
-            foreach (var columnKey in columnKeys)
-            {
-                var current = cellEntries.SingleOrDefault(item => item.RowIndex == rowIndex && item.ColumnKey == columnKey);
-                var next = cellEntries.SingleOrDefault(item => item.RowIndex == rowIndex + 1 && item.ColumnKey == columnKey);
-                if (current is null || next is null)
-                {
-                    continue;
-                }
-
-                var leadingAffixCount = 0;
-                while (leadingAffixCount < next.Lines.Count && CriticalTableParserSupport.IsAffixLikeLine(next.Lines[leadingAffixCount], affixLegendSymbols))
-                {
-                    leadingAffixCount++;
-                }
-
-                if (leadingAffixCount == 0 || leadingAffixCount == next.Lines.Count)
-                {
-                    continue;
-                }
-
-                current.Lines.AddRange(next.Lines.Take(leadingAffixCount));
-                next.Lines.RemoveRange(0, leadingAffixCount);
-            }
-        }
-    }
-
-    private static int ResolveRowBoundaryTop(
-        RowAnchor current,
-        RowAnchor next,
-        IReadOnlyList<(int Top, bool IsAffixLike)> bodyLines)
-    {
-        var linesBetweenLabels = bodyLines
-            .Where(item => item.Top >= current.Top && item.Top < next.Top)
-            .OrderBy(item => item.Top)
-            .ToList();
-
-        for (var index = linesBetweenLabels.Count - 2; index >= 0; index--)
-        {
-            if (linesBetweenLabels[index].IsAffixLike && !linesBetweenLabels[index + 1].IsAffixLike)
-            {
-                return (int)Math.Floor((linesBetweenLabels[index].Top + linesBetweenLabels[index + 1].Top) / 2.0) + 1;
-            }
-        }
-
-        return (int)Math.Floor((current.Top + next.Top) / 2.0) + 1;
-    }
-
-    private sealed record RowAnchor(string Label, int Top, int SortOrder);
-
-    private sealed class CellEntry(string rollBandLabel, int rowIndex, string columnKey, List<string> lines)
-    {
-        public string RollBandLabel { get; } = rollBandLabel;
-        public int RowIndex { get; } = rowIndex;
-        public string ColumnKey { get; } = columnKey;
-        public List<string> Lines { get; } = lines;
-    }
 }

src/RolemasterDb.ImportTool/Parsing/VariantColumnCriticalTableParser.cs

@@ -28,13 +28,7 @@ public sealed class VariantColumnCriticalTableParser
             .ToList();
 
         var bodyStartTop = headerFragments.Max(item => item.Top) + CriticalTableParserSupport.HeaderToBodyMinimumGap;
-        var keyTop = fragments
-            .Where(item =>
-                string.Equals(item.Text, "Key:", StringComparison.OrdinalIgnoreCase) ||
-                item.Text.Contains("must parry", StringComparison.OrdinalIgnoreCase) ||
-                item.Text.Contains("attacker gets", StringComparison.OrdinalIgnoreCase))
-            .Select(item => (int?)item.Top)
-            .Min() ?? int.MaxValue;
+        var keyTop = CriticalTableParserSupport.FindKeyTop(fragments);
         var affixLegendSymbols = CriticalTableParserSupport.DetectAffixLegendSymbols(fragments, keyTop);
         var leftCutoff = headerFragments.Min(item => item.Left) - 10;
         var rowLabelFragments = CriticalTableParserSupport.FindRowLabelFragments(
@@ -42,11 +36,7 @@ public sealed class VariantColumnCriticalTableParser
             leftCutoff,
             bodyStartTop,
             keyTop);
-
-        var rowAnchors = rowLabelFragments
-            .OrderBy(item => item.Top)
-            .Select((item, index) => new RowAnchor(CriticalTableParserSupport.NormalizeRollBandLabel(item.Text), item.Top, index + 1))
-            .ToList();
+        var rowAnchors = CriticalTableParserSupport.CreateRowAnchors(rowLabelFragments);
 
         if (rowAnchors.Count == 0)
         {
@@ -57,33 +47,32 @@ public sealed class VariantColumnCriticalTableParser
             .Select(item => (item.Key, item.CenterX))
             .ToList();
 
-        var bodyFragments = fragments
-            .Where(item =>
-                item.Top >= bodyStartTop &&
-                item.Top < keyTop - CriticalTableParserSupport.TopGroupingTolerance &&
-                !CriticalTableParserSupport.IsFooterPageNumberFragment(item, keyTop) &&
-                !CriticalTableParserSupport.IsPotentialRowLabelFragment(item, leftCutoff) &&
-                !rowAnchors.Any(anchor => anchor.Top == item.Top && string.Equals(anchor.Label, CriticalTableParserSupport.NormalizeRollBandLabel(item.Text), StringComparison.OrdinalIgnoreCase)) &&
-                !headerFragments.Contains(item))
-            .ToList();
-        bodyFragments = CriticalTableParserSupport.SplitBoundaryCrossingAffixFragments(bodyFragments, columnCenters, affixLegendSymbols);
+        var bodyFragments = CriticalTableParserSupport.BuildBodyFragments(
+            fragments,
+            bodyStartTop,
+            keyTop,
+            leftCutoff,
+            rowAnchors,
+            headerFragments,
+            columnCenters,
+            affixLegendSymbols);
         var bodyLines = CriticalTableParserSupport.BuildBodyLines(bodyFragments, columnCenters, affixLegendSymbols);
 
         var parsedRollBands = rowAnchors
             .Select(anchor => CriticalTableParserSupport.CreateRollBand(anchor.Label, anchor.SortOrder))
             .ToList();
 
-        var cellEntries = new List<CellEntry>();
+        var cellEntries = new List<ColumnarCellEntry>();
 
         for (var rowIndex = 0; rowIndex < rowAnchors.Count; rowIndex++)
         {
             var rowStart = rowIndex == 0
                 ? bodyStartTop
-                : ResolveRowBoundaryTop(rowAnchors[rowIndex - 1], rowAnchors[rowIndex], bodyLines);
+                : CriticalTableParserSupport.ResolveRowBoundaryTop(rowAnchors[rowIndex - 1], rowAnchors[rowIndex], bodyLines);
 
             var rowEnd = rowIndex == rowAnchors.Count - 1
                 ? keyTop - 1
-                : ResolveRowBoundaryTop(rowAnchors[rowIndex], rowAnchors[rowIndex + 1], bodyLines);
+                : CriticalTableParserSupport.ResolveRowBoundaryTop(rowAnchors[rowIndex], rowAnchors[rowIndex + 1], bodyLines);
 
             var rowFragments = bodyFragments
                 .Where(item => item.Top >= rowStart && item.Top < rowEnd)
@@ -103,7 +92,8 @@ public sealed class VariantColumnCriticalTableParser
                     continue;
                 }
 
-                cellEntries.Add(new CellEntry(
+                cellEntries.Add(new ColumnarCellEntry(
+                    null,
                     rowAnchors[rowIndex].Label,
                     rowIndex,
                     columnAnchor.Key,
@@ -111,42 +101,11 @@ public sealed class VariantColumnCriticalTableParser
             }
         }
 
-        RepairLeadingAffixLeakage(cellEntries, affixLegendSymbols);
+        CriticalTableParserSupport.RepairLeadingAffixLeakage(cellEntries, affixLegendSymbols);
 
         var parsedCells = new List<ParsedCriticalCellArtifact>();
         var parsedResults = new List<ParsedCriticalResult>();
-
-        foreach (var cellEntry in cellEntries.OrderBy(item => item.RowIndex).ThenBy(item => item.ColumnKey, StringComparer.Ordinal))
-        {
-            var segmentCount = CriticalTableParserSupport.CountLineTypeSegments(cellEntry.Lines, affixLegendSymbols);
-            if (segmentCount > 2)
-            {
-                validationErrors.Add($"Cell '{cellEntry.RollBandLabel}/{cellEntry.ColumnKey}' interleaves prose and affix lines.");
-            }
-
-            var rawAffixLines = cellEntry.Lines.Where(line => CriticalTableParserSupport.IsAffixLikeLine(line, affixLegendSymbols)).ToList();
-            var descriptionLines = cellEntry.Lines.Where(line => !CriticalTableParserSupport.IsAffixLikeLine(line, affixLegendSymbols)).ToList();
-            var rawCellText = string.Join(Environment.NewLine, cellEntry.Lines);
-            var descriptionText = CriticalTableParserSupport.CollapseWhitespace(string.Join(' ', descriptionLines));
-            var rawAffixText = rawAffixLines.Count == 0 ? null : string.Join(Environment.NewLine, rawAffixLines);
-
-            parsedCells.Add(new ParsedCriticalCellArtifact(
-                null,
-                cellEntry.RollBandLabel,
-                cellEntry.ColumnKey,
-                cellEntry.Lines,
-                rawCellText,
-                descriptionText,
-                rawAffixText));
-
-            parsedResults.Add(new ParsedCriticalResult(
-                null,
-                cellEntry.ColumnKey,
-                cellEntry.RollBandLabel,
-                rawCellText,
-                descriptionText,
-                rawAffixText));
-        }
+        CriticalTableParserSupport.BuildParsedArtifacts(cellEntries, affixLegendSymbols, parsedCells, parsedResults, validationErrors);
 
         if (columnAnchors.Count != ExpectedColumns.Length)
         {
@@ -208,69 +167,5 @@ public sealed class VariantColumnCriticalTableParser
         ExpectedColumns.SingleOrDefault(item => string.Equals(item.Label, value.Trim(), StringComparison.OrdinalIgnoreCase))
         ?? throw new InvalidOperationException($"Unsupported variant column label '{value}'.");
 
-    private static void RepairLeadingAffixLeakage(List<CellEntry> cellEntries, ISet<string> affixLegendSymbols)
-    {
-        var maxRowIndex = cellEntries.Count == 0 ? -1 : cellEntries.Max(item => item.RowIndex);
-        var columnKeys = cellEntries.Select(item => item.ColumnKey).Distinct(StringComparer.OrdinalIgnoreCase).ToList();
-
-        for (var rowIndex = 0; rowIndex < maxRowIndex; rowIndex++)
-        {
-            foreach (var columnKey in columnKeys)
-            {
-                var current = cellEntries.SingleOrDefault(item => item.RowIndex == rowIndex && item.ColumnKey == columnKey);
-                var next = cellEntries.SingleOrDefault(item => item.RowIndex == rowIndex + 1 && item.ColumnKey == columnKey);
-                if (current is null || next is null)
-                {
-                    continue;
-                }
-
-                var leadingAffixCount = 0;
-                while (leadingAffixCount < next.Lines.Count && CriticalTableParserSupport.IsAffixLikeLine(next.Lines[leadingAffixCount], affixLegendSymbols))
-                {
-                    leadingAffixCount++;
-                }
-
-                if (leadingAffixCount == 0 || leadingAffixCount == next.Lines.Count)
-                {
-                    continue;
-                }
-
-                current.Lines.AddRange(next.Lines.Take(leadingAffixCount));
-                next.Lines.RemoveRange(0, leadingAffixCount);
-            }
-        }
-    }
-
-    private static int ResolveRowBoundaryTop(
-        RowAnchor current,
-        RowAnchor next,
-        IReadOnlyList<(int Top, bool IsAffixLike)> bodyLines)
-    {
-        var linesBetweenLabels = bodyLines
-            .Where(item => item.Top >= current.Top && item.Top < next.Top)
-            .OrderBy(item => item.Top)
-            .ToList();
-
-        for (var index = linesBetweenLabels.Count - 2; index >= 0; index--)
-        {
-            if (linesBetweenLabels[index].IsAffixLike && !linesBetweenLabels[index + 1].IsAffixLike)
-            {
-                return (int)Math.Floor((linesBetweenLabels[index].Top + linesBetweenLabels[index + 1].Top) / 2.0) + 1;
-            }
-        }
-
-        return (int)Math.Floor((current.Top + next.Top) / 2.0) + 1;
-    }
-
     private sealed record ColumnDefinition(string Key, string Label);
-
-    private sealed record RowAnchor(string Label, int Top, int SortOrder);
-
-    private sealed class CellEntry(string rollBandLabel, int rowIndex, string columnKey, List<string> lines)
-    {
-        public string RollBandLabel { get; } = rollBandLabel;
-        public int RowIndex { get; } = rowIndex;
-        public string ColumnKey { get; } = columnKey;
-        public List<string> Lines { get; } = lines;
-    }
 }