ISO 639-4:2010
Codes for the representation of names of languages — Part 4: General principles of coding of the representation of names of languages and related entities, and application guidelines
ISO 639-4:2010 gives the general principles of language coding using the codes that are specified in the other parts of ISO 639 and their combination with other codes. It also lays down guidelines for the use of any combination of the parts of ISO 639.
The terminology and general descriptions of ISO 639-4 are intended to replace corresponding text of other parts of ISO 639 as relevant in future revisions.
Relevant metadata for the description of linguistic entities are given, as a framework for databases of linguistic data to support the ISO 639 series.
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Scope
Normative references
Terms and definitions
Fundamental concepts of language coding
Language identifiers and languages
Individual languages
Macrolanguages
Linguistic norm
Dialects
Collective language code elements and language groups
Extinct, ancient and historic languages
Artificial languages
Writing systems and scripts
Relationship between the parts of ISO 639
Parts of ISO 639
ISO 639 as one code space
Principles
Common maintenance and language coding database
Implementation issues
Applications
Subsets of the code table
Language groups
Combining language identifiers with other standards and code
Combining ISO 639 with ISO 3166
Combining ISO 639 with ISO 19111 and ISO 19112
Combining ISO 639 with ISO 15924
Other code combinations
Formats of combined identifiers
Language description format (LDF)
Compatibilities between the ISO 639 model and ISO 12620
General
Identification
Description of an ISO 639 language identifier
Extensions to ISO 12620 for ISO 639 LDF
Representation
Documentation
Language information
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Scope
Normative references
Terms and definitions
Fundamental concepts of language coding
Language identifiers and languages
Individual languages
Macrolanguages
Linguistic norm
Dialects
Collective language code elements and language groups
Extinct, ancient and historic languages
Artificial languages
Writing systems and scripts
Relationship between the parts of ISO 639
Parts of ISO 639
ISO 639 as one code space
Principles
Common maintenance and language coding database
Implementation issues
Applications
Subsets of the code table
Language groups
Combining language identifiers with other standards and code
Combining ISO 639 with ISO 3166
Combining ISO 639 with ISO 19111 and ISO 19112
Combining ISO 639 with ISO 15924
Other code combinations
Formats of combined identifiers
Language description format (LDF)
Compatibilities between the ISO 639 model and ISO 12620
General
Identification
Description of an ISO 639 language identifier
Extensions to ISO 12620 for ISO 639 LDF
Representation
Documentation
Language information