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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 19:41:07 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 19:41:07 +0000
commit3af6d22bb3850ab2bac67287e3a3d3b0e32868e5 (patch)
tree3ee7a3ec64525911fa865bb984c86d997d855527 /man7/unicode.7
parentAdding debian version 6.05.01-1. (diff)
downloadmanpages-3af6d22bb3850ab2bac67287e3a3d3b0e32868e5.tar.xz
manpages-3af6d22bb3850ab2bac67287e3a3d3b0e32868e5.zip
Merging upstream version 6.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man7/unicode.7')
-rw-r--r--man7/unicode.722
1 files changed, 11 insertions, 11 deletions
diff --git a/man7/unicode.7 b/man7/unicode.7
index f65a9b2..fe38909 100644
--- a/man7/unicode.7
+++ b/man7/unicode.7
@@ -7,7 +7,7 @@
.\" 2001-05-11 Markus Kuhn <mgk25@cl.cam.ac.uk>
.\" Update
.\"
-.TH unicode 7 2023-03-12 "Linux man-pages 6.05.01"
+.TH unicode 7 2024-01-28 "Linux man-pages 6.7"
.SH NAME
unicode \- universal character set
.SH DESCRIPTION
@@ -18,7 +18,7 @@ It also guarantees "round-trip compatibility";
in other words,
conversion tables can be built such that no information is lost
when a string is converted from any other encoding to UCS and back.
-.PP
+.P
UCS contains the characters required to represent practically all
known languages.
This includes not only the Latin, Greek, Cyrillic,
@@ -40,7 +40,7 @@ graphical, typographical, mathematical, and scientific symbols,
including those provided by TeX, Postscript, APL, MS-DOS, MS-Windows,
Macintosh, OCR fonts, as well as many word processing and publishing
systems, and more are being added.
-.PP
+.P
The UCS standard (ISO/IEC 10646) describes a
31-bit character set architecture
consisting of 128 24-bit
@@ -71,7 +71,7 @@ The supplemental planes added by
ISO/IEC 10646-2 cover only more exotic characters for special scientific,
dictionary printing, publishing industry, higher-level protocol and
enthusiast needs.
-.PP
+.P
The representation of each UCS character as a 2-byte word is referred
to as the UCS-2 form (only for BMP characters),
whereas UCS-4 is the representation of each character by a 4-byte word.
@@ -79,12 +79,12 @@ In addition, there exist two encoding forms UTF-8
for backward compatibility with ASCII processing software and UTF-16
for the backward-compatible handling of non-BMP characters up to
0x10ffff by UCS-2 software.
-.PP
+.P
The UCS characters 0x0000 to 0x007f are identical to those of the
classic US-ASCII
character set and the characters in the range 0x0000 to 0x00ff
are identical to those in
-ISO 8859-1 (Latin-1).
+ISO/IEC\~8859-1 (Latin-1).
.SS Combining characters
Some code points in UCS
have been assigned to
@@ -101,7 +101,7 @@ character Umlaut-A ("Latin capital letter A with diaeresis") can
either be represented by the precomposed UCS code 0x00c4, or
alternatively as the combination of a normal "Latin capital letter A"
followed by a "combining diaeresis": 0x0041 0x0308.
-.PP
+.P
Combining characters are essential for instance for encoding the Thai
script or for mathematical typesetting and users of the International
Phonetic Alphabet.
@@ -124,7 +124,7 @@ Arabic, Devanagari, Malayalam).
.TP
Level 3
All UCS characters are supported.
-.PP
+.P
The Unicode 3.0 Standard
published by the Unicode Consortium
contains exactly the UCS Basic Multilingual Plane
@@ -147,7 +147,7 @@ code values (in all locales), a convention that is signaled by the GNU
C library to applications by defining the constant
.B __STDC_ISO_10646__
as specified in the ISO C99 standard.
-.PP
+.P
UCS/Unicode can be used just like ASCII in input/output streams,
terminal communication, plaintext files, filenames, and environment
variables in the ASCII compatible UTF-8 multibyte encoding.
@@ -156,7 +156,7 @@ encoding to all applications, a suitable
.I locale
has to be selected via environment variables (e.g.,
"LANG=en_GB.UTF-8").
-.PP
+.P
The
.B nl_langinfo(CODESET)
function returns the name of the selected encoding.
@@ -189,7 +189,7 @@ in the Linux kernel sources
(or
.I Documentation/unicode.txt
before Linux 4.10).
-.PP
+.P
Two other planes are reserved for private usage, plane 15
(Supplementary Private Use Area-A, range 0xf0000 to 0xffffd)
and plane 16 (Supplementary Private Use Area-B, range