Parameters

This function takes the following parameters:

t1

Name of the first attribute type that you want to compare.

t2

Name of the second attribute type that you want to compare.

opt

One of the following values:

• 0 - Compare the types as is.

• 1 - Compare only the base names of the types (for example, if the type is cn;lang-en, the function compares only the cn part of the type).

• 2 - Ignore any options in the second type that are not in the first type. For example, if the first type is cn and the second type is cn;lang-en, the lang-en option in the second type is not part of the first type. In this case, the function considers the two types to be the same.