This document specifies a set of Label Generation Rules (LGR) for the Swedish language using a language-specific repertoire for the second level domain or domains identified above. The format of this file follows [RFC 7940]. This LGR is adapted from the “Reference LGR for the Second Level for the Swedish Language” [Ref-LGR-sv-Latn], for details, see Change History below.
Standalone LGR: This LGR is designed to be used in a zone that does not cater to IDNs other than those valid under this LGR. This LGR lacks features that would allow its use in the context of another LGR in the same zone, and it may contain other features incompatible with such use.
references converge on 42 (29 + 13) Latin code points, with an additional 9 extensions. The repertoire here adds U+00E6 LATIN SMALL LETTER AE and U+00F8 LATIN SMALL LETTER O WITH STROKE, both of which are used in neighboring Denmark and Norway.
In addition, reference [605] cites use of these letters in foreign names:
U+00EB LATIN SMALL LETTER E WITH DIAERESIS
U+00ED LATIN SMALL LETTER I WITH ACUTE
U+00F1 LATIN SMALL LETTER N WITH TILDE
U+00F5 LATIN SMALL LETTER O WITH TILDE
They have been added to the core repertoire.
The Latin repertoire of the IDN table published in the IANA Repository of IDN Practices for the .se ccTLD includes code points for Swedish plus all the official Latin-based minority languages, such as Finnish [700]. This goes beyond the scope of a language-based LGR.
Letters documented in some references but not included:
U+00E3 LATIN SMALL LETTER A WITH TILDE
U+00EA LATIN SMALL LETTER E WITH CIRCUMFLEX
U+00EC LATIN SMALL LETTER I WITH GRAVE
U+00EE LATIN SMALL LETTER I WITH CIRCUMFLEX
U+00F0 LATIN SMALL LETTER ETH
U+00F2 LATIN SMALL LETTER O WITH GRAVE
U+00F4 LATIN SMALL LETTER O WITH CIRCUMFLEX
U+00F9 LATIN SMALL LETTER U WITH GRAVE
U+00FA LATIN SMALL LETTER U WITH ACUTE
U+00FB LATIN SMALL LETTER U WITH CIRCUMFLEX
U+00FD LATIN SMALL LETTER Y WITH ACUTE
U+00FE LATIN SMALL LETTER THORN
U+00FF LATIN SMALL LETTER Y WITH DIAERESIS
U+0101 LATIN SMALL LETTER A WITH MACRON
U+0107 LATIN SMALL LETTER C WITH ACUTE
U+011B LATIN SMALL LETTER E WITH CARON
U+012B LATIN SMALL LETTER I WITH MACRON
U+0142 LATIN SMALL LETTER L WITH STROKE
U+0159 LATIN SMALL LETTER R WITH CARON
U+015B LATIN SMALL LETTER S WITH ACUTE
U+0163 LATIN SMALL LETTER T WITH CEDILLA
U+017A LATIN SMALL LETTER Z WITH ACUTE
U+01CE LATIN SMALL LETTER A WITH CARON
U+01D0 LATIN SMALL LETTER I WITH CARON
U+01D2 LATIN SMALL LETTER O WITH CARON
U+01D4 LATIN SMALL LETTER U WITH CARON
U+01E5 LATIN SMALL LETTER G WITH STROKE
U+01E7 LATIN SMALL LETTER G WITH CARON
U+01E9 LATIN SMALL LETTER K WITH CARON
U+01EF LATIN SMALL LETTER EZH WITH CARON
U+0213 LATIN SMALL LETTER R WITH INVERTED BREVE
U+0259 LATIN SMALL LETTER SCHWA
U+0292 LATIN SMALL LETTER EZH
A number of letters not considered essential to writing the core vocabulary of the language are nevertheless in common use. Where they have not been added to the core repertoire, they are flagged as “extended-cp” in the table of code points. A context rule is provided that by default will prohibit labels with such extended code points. To support extended single code points or code point sequences, delete the context “extended-cp” from their repertoire definition.
Reference [702] cites these extensions for the major Sami orthographies.
U+00E2 LATIN SMALL LETTER A WITH CIRCUMFLEX
U+00EF LATIN SMALL LETTER I WITH DIAERESIS
U+010D LATIN SMALL LETTER C WITH CARON
U+0111 LATIN SMALL LETTER D WITH STROKE
U+0144 LATIN SMALL LETTER N WITH ACUTE
U+014B LATIN SMALL LETTER ENG
U+0161 LATIN SMALL LETTER S WITH CARON
U+0167 LATIN SMALL LETTER T WITH STROKE
U+017E LATIN SMALL LETTER Z WITH CARON
These have been included here in the extended repertoire.
No variants are applicable when using the LGR in a standalone fashion.
This LGR does not define named character classes.
By default, the LGR includes the rules and actions to implement the following restrictions mandated by the IDNA protocol. They are marked with ⍟.
This LGR includes the default actions for LGRs as well as the action needed to invalidate labels with misplaced combining marks. They are marked with ⍟. For a description see [RFC 7940].
The LGR in this document has been adapted from the corresponding Reference LGR for the Second Level. The Second Level Reference LGR for the Swedish Language was developed by Michel Suignard and Asmus Freytag, including input by Michael Everson, Nicholas Ostler, and Wil Tan, and based on multiple open public consultations.
Language tag has been updated.
Unicode Version has been updated. A clerical error affecting the description of letter S with Caron has been corrected.
Adopted from the Second Level Reference LGR for the Swedish Language [Ref-LGR-sv-Latn] without normative changes.
General references for the language:
Svenska språknämnden. 1991. Svenska skrivregler. Stockholm: Almqvist & Wiksell. ISBN 91-21-11280-0
Tekniska nomenklaturcentralen, in Icelandic Council for Standardization. 1992. Nordic cultural requirements on information technology. Reykjavík: Staðlaráð Íslands. ISBN 9979-9004-3-1
Wikipedia: “Swedish orthography”, https://en.wikipedia.org/wiki/Swedish_alphabet
Omniglot: “Swedish (svenska)” htm https://www.omniglot.com/writing/swedish.htm
Other references cited in this document:
In the listing of the repertoire by code point, references starting from [0] refer to the version of the Unicode Standard in which the corresponding code point was initially encoded. Other references (starting from [100]) document usage of code points. Entries in the table may have multiple source reference values. In the listing of whole label evaluation and context rules, reference [150] indicates the source for common rules. For more details, see the Table of References below.
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