diff options
Diffstat (limited to 'winsup/doc/setup2.sgml')
| -rw-r--r-- | winsup/doc/setup2.sgml | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/winsup/doc/setup2.sgml b/winsup/doc/setup2.sgml index 62904ae6b..e3127bd20 100644 --- a/winsup/doc/setup2.sgml +++ b/winsup/doc/setup2.sgml @@ -353,17 +353,16 @@ With the "@cyrillic" modifier it's UTF-8. <listitem><para> There's a class of characters in the Unicode character set, called the -"CJK Ambiguous Width Character set". For these characters the width -returned by the wcwidth/wcswidth function is usually 1. This is often a -problem in East-Asian languages, which historically use character sets -in which these characters have a width of 2. By default, the -wcwidth/wcswidth functions return 1 as the width of these characters, -except if the language is specifed as "ja" (Japanese), "ko" (Korean), or -"zh" (Chinese). In these languages wcwidth and wcswidth return 2 for -these characters. This is not correct in all circumstances, so the user -of one of these languages can specify the modifier "@cjknarrow", which -modifies the behaviour of wcwidth/wcswidth to return 1 for the ambiguous -width characters. +"CJK Ambiguous Width" characters. For these characters, the width +returned by the wcwidth/wcswidth functions is usually 1. This can be a +problem with East-Asian languages, which historically use character sets +where these characters have a width of 2. Therefore, wcwidth/wcswidth +return 2 as the width of these characters when an East-Asian charset such +as GBK or SJIS is selected, or when UTF-8 is selected and the language is +specified as "zh" (Chinese), "ja" (Japanese), or "ko" (Korean). This is +not correct in all circumstances, hence the locale modifier "@cjknarrow" +can be used to force wcwidth/wcswidth to return 1 for the ambiguous width +characters. </para></listitem> </itemizedlist> |