Type Alias UpcEanExtensionBehavior

Behavior when scanning UPC/EAN barcodes with EAN-2 or EAN-5 extensions.

REQUIRE_2: Only barcodes with a 2-digit extension are accepted.
REQUIRE_5: Only barcodes with a 5-digit extension are accepted.
REQUIRE_ANY: Only barcodes with either a 2-digit or a 5-digit extension are accepted.
IGNORE: Always ignore the extension.
ALLOW_2: Return detected 2-digit extension if present, but do not require it. Ignore the 5-digit extension.
ALLOW_5: Return detected 5-digit extension if present, but do not require it. Ignore the 2-digit extension.
ALLOW_ANY: Return any detected extension if present, but do not require it.

"REQUIRE_2"
Only barcodes with a 2-digit extension are accepted.
"REQUIRE_5"
Only barcodes with a 5-digit extension are accepted.
"REQUIRE_ANY"
Only barcodes with either a 2-digit or a 5-digit extension are accepted.
"IGNORE"
Always ignore the extension.
"ALLOW_2"
Return detected 2-digit extension if present, but do not require it. Ignore the 5-digit extension.
"ALLOW_5"
Return detected 5-digit extension if present, but do not require it. Ignore the 2-digit extension.
"ALLOW_ANY"
Return any detected extension if present, but do not require it.