diff options
Diffstat (limited to 'upstream/archlinux/man7/utf-8.7')
| -rw-r--r-- | upstream/archlinux/man7/utf-8.7 | 27 |
1 files changed, 10 insertions, 17 deletions
diff --git a/upstream/archlinux/man7/utf-8.7 b/upstream/archlinux/man7/utf-8.7 index e2dbf619..0ffd356e 100644 --- a/upstream/archlinux/man7/utf-8.7 +++ b/upstream/archlinux/man7/utf-8.7 @@ -7,7 +7,7 @@ .\" 2001-05-11 Markus Kuhn <mgk25@cl.cam.ac.uk> .\" Update .\" -.TH UTF-8 7 2024-01-28 "Linux man-pages 6.06" +.TH UTF-8 7 2024-05-02 "Linux man-pages 6.8" .SH NAME UTF-8 \- an ASCII compatible multibyte Unicode encoding .SH DESCRIPTION @@ -33,8 +33,7 @@ does not have these problems and is the common way in which Unicode is used on UNIX-style operating systems. .SS Properties The UTF-8 encoding has the following nice properties: -.TP 0.2i -* +.IP \[bu] 3 UCS characters 0x00000000 to 0x0000007f (the classic US-ASCII characters) are encoded simply as bytes 0x00 to 0x7f (ASCII @@ -43,24 +42,19 @@ This means that files and strings which contain only 7-bit ASCII characters have the same encoding under both ASCII and -UTF-8 . -.TP -* +UTF-8. +.IP \[bu] All UCS characters greater than 0x7f are encoded as a multibyte sequence consisting only of bytes in the range 0x80 to 0xfd, so no ASCII byte can appear as part of another character and there are no problems with, for example, \[aq]\e0\[aq] or \[aq]/\[aq]. -.TP -* +.IP \[bu] The lexicographic sorting order of UCS-4 strings is preserved. -.TP -* +.IP \[bu] All possible 2\[ha]31 UCS codes can be encoded using UTF-8. -.TP -* +.IP \[bu] The bytes 0xc0, 0xc1, 0xfe, and 0xff are never used in the UTF-8 encoding. -.TP -* +.IP \[bu] The first byte of a multibyte sequence which represents a single non-ASCII UCS character is always in the range 0xc2 to 0xfd and indicates how long this multibyte sequence is. @@ -68,8 +62,7 @@ All further bytes in a multibyte sequence are in the range 0x80 to 0xbf. This allows easy resynchronization and makes the encoding stateless and robust against missing bytes. -.TP -* +.IP \[bu] UTF-8 encoded UCS characters may be up to six bytes long, however the Unicode standard specifies no characters above 0x10ffff, so Unicode characters can be only up to four bytes long in @@ -77,7 +70,7 @@ UTF-8. .SS Encoding The following byte sequences are used to represent a character. The sequence to be used depends on the UCS code number of the character: -.TP 0.4i +.TP 0x00000000 \- 0x0000007F: .RI 0 xxxxxxx .TP |