From 3edc8838d93fdda61e3f6d538d0b4fa8adf46569 Mon Sep 17 00:00:00 2001
From: jess <jess@else-if.org>
Date: Tue, 7 Apr 2026 14:29:37 -0700
Subject: [PATCH] skip gutter line numbers for collapsed table/HR source ranges

---
 src/EditorView.swift | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/src/EditorView.swift b/src/EditorView.swift
index 4a37932..810e7b7 100644
--- a/src/EditorView.swift
+++ b/src/EditorView.swift
@@ -2745,6 +2745,19 @@ class LineNumberTextView: NSTextView {
 
         let lineMode = ConfigManager.shared.lineIndicatorMode
 
+        // Collect collapsed block source ranges (tables, HRs) to skip in gutter
+        var collapsedRanges: [NSRange] = []
+        if let mlm = lm as? MarkdownLayoutManager {
+            for block in mlm.blockRanges {
+                switch block.kind {
+                case .tableBlock, .horizontalRule:
+                    collapsedRanges.append(block.range)
+                default:
+                    break
+                }
+            }
+        }
+
         var containerVisible = visibleRect
         containerVisible.origin.x -= origin.x
         containerVisible.origin.y -= origin.y
@@ -2784,6 +2797,14 @@ class LineNumberTextView: NSTextView {
         var charIndex = visibleChars.location
         while charIndex < NSMaxRange(visibleChars) {
             let lineRange = text.lineRange(for: NSRange(location: charIndex, length: 0))
+
+            let inCollapsedBlock = collapsedRanges.contains { NSIntersectionRange($0, lineRange).length > 0 }
+            if inCollapsedBlock {
+                lineNumber += 1
+                charIndex = NSMaxRange(lineRange)
+                continue
+            }
+
             let lineGlyphRange = lm.glyphRange(forCharacterRange: lineRange, actualCharacterRange: nil)
             let lineRect = lm.boundingRect(forGlyphRange: lineGlyphRange, in: tc)
             let y = lineRect.origin.y + origin.y