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-
- The files in the symbols directory describe possible layouts for a given
- keyboard.
-
- The default layout in each file should describe the most common layout
- for its kind, usually the symbols printed on the keys. Layout variants
- can describe common differences that are not necessarily printed on the keys.
- (e.g. a phonetic version of Cyrillic).
-
- The names of the files are referenced throughout the XKB rules, and may be
- exposed in the X server configuration and in user configuration tools.
- The filenames use the following convention:
-
- Country layouts:
-
- Keyboard layouts for a country must use the 2-letter code from the
- ISO-3166 standard.
-
- Language layouts:
-
- Keyboard layouts for a language must use the 3-letter code from the
- ISO-639 standard.
-
- Script layouts:
-
- Keyboard layouts for a script must use the 4-letter code from the
- ISO-15924 standard.
-
- Other:
-
- Keyboard layouts that do not fit in the above model and directories
- must use a filename between 5 and 8 characters.
-
- The ISO codes can be found at the following addressed:
-
- Country layouts: http://www.iso.org/iso/en/prods-services/iso3166ma/02iso-3166-code-lists/iso_3166-1_decoding_table.html
- Language layouts: http://www.loc.gov/standards/iso639-2/langcodes.html
- Script layouts: http://www.unicode.org/iso15924/iso15924-codes.html
-
- The description in the directory file base.xml.in should match the group names
- in the symbols file.
-
- If the layout is country-based, this has to be the full
- name of the country. It is highly not recommended to use the forms
- "Republic of XXX" or "XXX Republic" - the form "XXX" should be used instead.
- The only exception is "United Kingdom".
-
- If the layout is language-based, this has to be the name of the language.
-
- Within single symbols file, all the variants should have the same group name
- (implemented using the "include" directive wherever possible).
-