Codes and Tags

For identifying languages, countries, scripts

1. Introductory & explanatory materials

• "Language tags in HTML and XML" http://www.w3.org/International/articles/language-tags/Overview.en.php
• Language Tags (links & basic information) http://www.langtag.net/
• RFC (request for comments) documents of the IETF
  • RFC 4645 "Initial Language Subtag Registry" http://www.ietf.org/rfc/rfc4645.txt
  • RFC 4646 "Tags for Identifying Languages" http://www.ietf.org/rfc/rfc3066.txt
  • RFC 4647 "Matching of Language Tags" http://www.ietf.org/rfc/rfc4647.txt
• "Declare the Language" (Teaching and Learning with Technology, Penn State Univ. ) http://tlt.its.psu.edu/suggestions/international/web/tips/langtag.html
• Wikipedia, "IETF language tag," http://en.wikipedia.org/wiki/IETF_language_tag

2. Language tags

• ISO-639-1&2 - http://www.loc.gov/standards/iso639-2/php/English_list.php
  • Online look-up utility http://people.w3.org/rishida/utils/subtags/
• ISO-639-3 - http://www.sil.org/iso639-3/codes.asp
• IANA registries
  • Language Subtag Registry http://www.iana.org/assignments/language-subtag-registry
  • Language Tag Extensions Registry (no content) http://www.iana.org/assignments/language-tag-extensions-registry
  • Tags no longer in use
    • Language Tags - OBSOLETE http://www.iana.org/assignments/language-tags
    • Language Tags Directory - OBSOLETE http://www.iana.org/assignments/lang-tag-apps.htm

3. Country (and regional) tags

• ISO-3166-1 (two-letter codes)
  • English country names and code elements http://www.iso.org/iso/en/prods-services/iso3166ma/02iso-3166-code-lists/list-en1.html
  • French country names and code elements http://www.iso.org/iso/en/prods-services/iso3166ma/02iso-3166-code-lists/list-fr1.html
• UN M.49 (numerical codes for regions)

4. Script tags

• ISO-15924

5. Organisations

• IANA
• IETF
  • LTRU
• ISO

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