This 模板 relates to a series of templates resolves the country and subdivision names to ISO 3166-1 and ISO 3166-2 codes, and vice versa.
ISO 3166 defines names, two and three letter codes and code numbers for all countries and six character codes (the two letter country code followed by a dash and a two or three character subdivision code) for all top level subdivisions.
Using the family of templates
When we wish to convert between various identifiers that may loosely be defined as user input and ISO 3166 entities, there may be more than one way to do each conversion. For our examples we use Pakistan as the country and Balochistan (Pakistan) as the subdivision.
The ISO-3166 identifiers for Pakistan are:
Alpha-2 code: PK
Alpha-3 code: PAK
Numeric code: 586
The ISO-3166 identifiers for Balochistan (Pakistan) is:
Now Pakistan also has a number of synonyms: for example Pakistán and پاکستان.