From 1524fcefd77d71c31bed00abbbaf8e2cfb5e9940 Mon Sep 17 00:00:00 2001
From: andiahmads <andi.fivesco@gmail.com>
Date: Tue, 23 Jun 2026 15:25:02 +0700
Subject: [PATCH] fix(filter): preserve inline comment markers in code

---
 src/core/filter.rs | 55 ++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 48 insertions(+), 7 deletions(-)

diff --git a/src/core/filter.rs b/src/core/filter.rs
index 90f89ade65..3eb8289f5e 100644
--- a/src/core/filter.rs
+++ b/src/core/filter.rs
@@ -170,20 +170,23 @@ impl FilterStrategy for MinimalFilter {
         for line in content.lines() {
             let trimmed = line.trim();
 
-            // Handle block comments
+            // Handle full-line block comments.
             if let (Some(start), Some(end)) = (patterns.block_start, patterns.block_end) {
-                if !in_docstring
-                    && trimmed.contains(start)
-                    && !trimmed.starts_with(patterns.doc_block_start.unwrap_or("###"))
-                {
-                    in_block_comment = true;
-                }
                 if in_block_comment {
                     if trimmed.contains(end) {
                         in_block_comment = false;
                     }
                     continue;
                 }
+                if !in_docstring
+                    && trimmed.starts_with(start)
+                    && !trimmed.starts_with(patterns.doc_block_start.unwrap_or("###"))
+                {
+                    if !trimmed.contains(end) {
+                        in_block_comment = true;
+                    }
+                    continue;
+                }
             }
 
             // Handle Python docstrings (keep them in minimal mode)
@@ -470,6 +473,44 @@ fn main() {
         assert!(result.contains("fn main()"));
     }
 
+    #[test]
+    fn test_minimal_filter_preserves_comment_markers_inside_code() {
+        let code = r#"
+const API: &str = "http://example.com/v1";  // endpoint
+let re = regex::Regex::new(r"https?://\w+").unwrap();
+let glob = "packages/*";
+let inline = call(/* keep this expression line */);
+fn foo() {}
+"#;
+        let filter = MinimalFilter;
+        let result = filter.filter(code, &Language::Rust);
+
+        assert!(result.contains(r#"const API: &str = "http://example.com/v1";"#));
+        assert!(result.contains(r#"let re = regex::Regex::new(r"https?://\w+").unwrap();"#));
+        assert!(result.contains(r#"let glob = "packages/*";"#));
+        assert!(result.contains("let inline = call(/* keep this expression line */);"));
+        assert!(result.contains("fn foo() {}"));
+    }
+
+    #[test]
+    fn test_minimal_filter_removes_full_line_block_comments_only() {
+        let code = r#"
+fn before() {}
+/* single-line block comment */
+/*
+ * multi-line block comment
+ */
+fn after() {}
+"#;
+        let filter = MinimalFilter;
+        let result = filter.filter(code, &Language::Rust);
+
+        assert!(result.contains("fn before() {}"));
+        assert!(result.contains("fn after() {}"));
+        assert!(!result.contains("single-line block comment"));
+        assert!(!result.contains("multi-line block comment"));
+    }
+
     // --- truncation accuracy ---
 
     #[test]