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diff --git a/Documentation/unicode.txt b/Documentation/unicode.txt deleted file mode 100644 index 4a33f81cadb1..000000000000 --- a/Documentation/unicode.txt +++ /dev/null @@ -1,175 +0,0 @@ - Last update: 2005-01-17, version 1.4 - -This file is maintained by H. Peter Anvin <unicode@lanana.org> as part -of the Linux Assigned Names And Numbers Authority (LANANA) project. -The current version can be found at: - - http://www.lanana.org/docs/unicode/unicode.txt - - ------------------------ - -The Linux kernel code has been rewritten to use Unicode to map -characters to fonts. By downloading a single Unicode-to-font table, -both the eight-bit character sets and UTF-8 mode are changed to use -the font as indicated. - -This changes the semantics of the eight-bit character tables subtly. -The four character tables are now: - -Map symbol Map name Escape code (G0) - -LAT1_MAP Latin-1 (ISO 8859-1) ESC ( B -GRAF_MAP DEC VT100 pseudographics ESC ( 0 -IBMPC_MAP IBM code page 437 ESC ( U -USER_MAP User defined ESC ( K - -In particular, ESC ( U is no longer "straight to font", since the font -might be completely different than the IBM character set. This -permits for example the use of block graphics even with a Latin-1 font -loaded. - -Note that although these codes are similar to ISO 2022, neither the -codes nor their uses match ISO 2022; Linux has two 8-bit codes (G0 and -G1), whereas ISO 2022 has four 7-bit codes (G0-G3). - -In accordance with the Unicode standard/ISO 10646 the range U+F000 to -U+F8FF has been reserved for OS-wide allocation (the Unicode Standard -refers to this as a "Corporate Zone", since this is inaccurate for -Linux we call it the "Linux Zone"). U+F000 was picked as the starting -point since it lets the direct-mapping area start on a large power of -two (in case 1024- or 2048-character fonts ever become necessary). -This leaves U+E000 to U+EFFF as End User Zone. - -[v1.2]: The Unicodes range from U+F000 and up to U+F7FF have been -hard-coded to map directly to the loaded font, bypassing the -translation table. The user-defined map now defaults to U+F000 to -U+F0FF, emulating the previous behaviour. In practice, this range -might be shorter; for example, vgacon can only handle 256-character -(U+F000..U+F0FF) or 512-character (U+F000..U+F1FF) fonts. - - -Actual characters assigned in the Linux Zone --------------------------------------------- - -In addition, the following characters not present in Unicode 1.1.4 -have been defined; these are used by the DEC VT graphics map. [v1.2] -THIS USE IS OBSOLETE AND SHOULD NO LONGER BE USED; PLEASE SEE BELOW. - -U+F800 DEC VT GRAPHICS HORIZONTAL LINE SCAN 1 -U+F801 DEC VT GRAPHICS HORIZONTAL LINE SCAN 3 -U+F803 DEC VT GRAPHICS HORIZONTAL LINE SCAN 7 -U+F804 DEC VT GRAPHICS HORIZONTAL LINE SCAN 9 - -The DEC VT220 uses a 6x10 character matrix, and these characters form -a smooth progression in the DEC VT graphics character set. I have -omitted the scan 5 line, since it is also used as a block-graphics -character, and hence has been coded as U+2500 FORMS LIGHT HORIZONTAL. - -[v1.3]: These characters have been officially added to Unicode 3.2.0; -they are added at U+23BA, U+23BB, U+23BC, U+23BD. Linux now uses the -new values. - -[v1.2]: The following characters have been added to represent common -keyboard symbols that are unlikely to ever be added to Unicode proper -since they are horribly vendor-specific. This, of course, is an -excellent example of horrible design. - -U+F810 KEYBOARD SYMBOL FLYING FLAG -U+F811 KEYBOARD SYMBOL PULLDOWN MENU -U+F812 KEYBOARD SYMBOL OPEN APPLE -U+F813 KEYBOARD SYMBOL SOLID APPLE - -Klingon language support ------------------------- - -In 1996, Linux was the first operating system in the world to add -support for the artificial language Klingon, created by Marc Okrand -for the "Star Trek" television series. This encoding was later -adopted by the ConScript Unicode Registry and proposed (but ultimately -rejected) for inclusion in Unicode Plane 1. Thus, it remains as a -Linux/CSUR private assignment in the Linux Zone. - -This encoding has been endorsed by the Klingon Language Institute. -For more information, contact them at: - - http://www.kli.org/ - -Since the characters in the beginning of the Linux CZ have been more -of the dingbats/symbols/forms type and this is a language, I have -located it at the end, on a 16-cell boundary in keeping with standard -Unicode practice. - -NOTE: This range is now officially managed by the ConScript Unicode -Registry. The normative reference is at: - - http://www.evertype.com/standards/csur/klingon.html - -Klingon has an alphabet of 26 characters, a positional numeric writing -system with 10 digits, and is written left-to-right, top-to-bottom. - -Several glyph forms for the Klingon alphabet have been proposed. -However, since the set of symbols appear to be consistent throughout, -with only the actual shapes being different, in keeping with standard -Unicode practice these differences are considered font variants. - -U+F8D0 KLINGON LETTER A -U+F8D1 KLINGON LETTER B -U+F8D2 KLINGON LETTER CH -U+F8D3 KLINGON LETTER D -U+F8D4 KLINGON LETTER E -U+F8D5 KLINGON LETTER GH -U+F8D6 KLINGON LETTER H -U+F8D7 KLINGON LETTER I -U+F8D8 KLINGON LETTER J -U+F8D9 KLINGON LETTER L -U+F8DA KLINGON LETTER M -U+F8DB KLINGON LETTER N -U+F8DC KLINGON LETTER NG -U+F8DD KLINGON LETTER O -U+F8DE KLINGON LETTER P -U+F8DF KLINGON LETTER Q - - Written <q> in standard Okrand Latin transliteration -U+F8E0 KLINGON LETTER QH - - Written <Q> in standard Okrand Latin transliteration -U+F8E1 KLINGON LETTER R -U+F8E2 KLINGON LETTER S -U+F8E3 KLINGON LETTER T -U+F8E4 KLINGON LETTER TLH -U+F8E5 KLINGON LETTER U -U+F8E6 KLINGON LETTER V -U+F8E7 KLINGON LETTER W -U+F8E8 KLINGON LETTER Y -U+F8E9 KLINGON LETTER GLOTTAL STOP - -U+F8F0 KLINGON DIGIT ZERO -U+F8F1 KLINGON DIGIT ONE -U+F8F2 KLINGON DIGIT TWO -U+F8F3 KLINGON DIGIT THREE -U+F8F4 KLINGON DIGIT FOUR -U+F8F5 KLINGON DIGIT FIVE -U+F8F6 KLINGON DIGIT SIX -U+F8F7 KLINGON DIGIT SEVEN -U+F8F8 KLINGON DIGIT EIGHT -U+F8F9 KLINGON DIGIT NINE - -U+F8FD KLINGON COMMA -U+F8FE KLINGON FULL STOP -U+F8FF KLINGON SYMBOL FOR EMPIRE - -Other Fictional and Artificial Scripts --------------------------------------- - -Since the assignment of the Klingon Linux Unicode block, a registry of -fictional and artificial scripts has been established by John Cowan -<jcowan@reutershealth.com> and Michael Everson <everson@evertype.com>. -The ConScript Unicode Registry is accessible at: - - http://www.evertype.com/standards/csur/ - -The ranges used fall at the low end of the End User Zone and can hence -not be normatively assigned, but it is recommended that people who -wish to encode fictional scripts use these codes, in the interest of -interoperability. For Klingon, CSUR has adopted the Linux encoding. -The CSUR people are driving adding Tengwar and Cirth into Unicode -Plane 1; the addition of Klingon to Unicode Plane 1 has been rejected -and so the above encoding remains official. |