asset: add function for sanitizing and asset name for display purposes

asset/asset.go

@@ -1064,3 +1064,29 @@ func ValidateAssetName(name string) error {
 	}
 	return nil
 }
+
+// DisplayAssetName sanitizes an asset name for display purposes.
+func DisplayAssetName(name string) string {
+	var displayName string
+
+	for _, char := range name {
+		switch {
+		case char > 127:
+			// Convert non-ASCII characters to hexadecimal
+			// representation.
+			hexValue := fmt.Sprintf("\\x%X", char)
+			displayName += hexValue
+		case char == '\n':
+			// Represent newline character as \n
+			displayName += "\\n"
+		case char == '\t':
+			// Represent tab character as \t
+			displayName += "\\t"
+		default:
+			// Add ASCII characters as is
+			displayName += string(char)
+		}
+	}
+
+	return displayName
+}

tapgarden/seedling.go

@@ -151,6 +151,7 @@ func (c Seedling) HasGroupKey() bool {
 
 // String returns a human-readable representation for the AssetSeedling.
 func (c Seedling) String() string {
+	assetDisplayName := asset.DisplayAssetName(c.AssetName)
 	return fmt.Sprintf("AssetSeedling(name=%v, type=%v, amt=%v) received",
-		c.AssetName, c.AssetType, c.Amount)
+		assetDisplayName, c.AssetType, c.Amount)
 }