dev day #89

pkg/validation/comments.go

@@ -98,9 +98,27 @@ func isExcessiveCaps(text string) bool {
 
 // Helper: detect excessive character repetition (e.g., "aaaaaa", "!!!!!!")
 func hasExcessiveRepetition(text string) bool {
-	// Check for 5+ consecutive identical characters
-	re := regexp.MustCompile(`(.)\1{4,}`)
-	return re.MatchString(text)
+	// Check for 5+ consecutive identical characters without using backreferences (unsupported in Go regex)
+	run := 1
+	var prev rune
+	first := true
+	for _, r := range text {
+		if first {
+			prev = r
+			first = false
+			continue
+		}
+		if r == prev {
+			run++
+			if run >= 5 {
+				return true
+			}
+		} else {
+			prev = r
+			run = 1
+		}
+	}
+	return false
 }
 
 // SanitizeCommentContent removes dangerous HTML but preserves basic formatting