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Improve the description of big5(5)

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- Fix the statement that big5 is a de facto standard of Traditional Chinese
  text [1]
- Add a BUGS section describes the problem of big5 and suggests use utf8

PR:		189095
Submitted by:	Brennan Vincent <brennan@umanwizard.com> [1]
Reviewed by:	Ting-Wei Lan <lantw44@gmail.com>
MFC after:	3 days
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D21622
This commit is contained in:
Li-Wen Hsu 2019-09-14 08:15:16 +00:00
parent af876563d1
commit 5d1f74b63d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=352315
1 changed files with 9 additions and 2 deletions
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11
lib/libc/locale/big5.5
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@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd August 7, 2003
.Dd September 12, 2019
.Dt BIG5 5
.Os
.Sh NAME
@ -37,7 +37,7 @@ encoding for Traditional Chinese text
.Qq BIG5
.Sh DESCRIPTION
.Dq Big Five
is the de facto standard for encoding Traditional Chinese text.
is a standard for encoding Traditional Chinese text.
Each character is represented by either one or two bytes.
Characters from the
.Tn ASCII
@ -49,3 +49,10 @@ the first in the range 0xA1 - 0xFE, the second in the range
.Xr euc 5 ,
.Xr gb18030 5 ,
.Xr utf8 5
.Sh BUGS
The range of the second byte overlaps some ASCII characters, including
0x5C (`\\') and 0x7C (`|') which may cause problems in program execution or
display.
Big5 is considered a legacy standard and only preserved for backward
compatibility reason.
New documents and systems are suggested using UTF-8 directly.