From: Bruno Haible <bruno@clisp.org>
Date: Thu, 15 May 2008 07:32:07 +0000 (+0200)
Subject: doc: some Unicode characters cannot be specified via \u or \U
X-Git-Tag: v6.12~36
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=513a23585815e4fc7a2b539086a9e8cf67da5c15;p=thirdparty%2Fcoreutils.git

doc: some Unicode characters cannot be specified via \u or \U

* doc/coreutils.texi (printf invocation): Clarify invalid ranges for
Unicode character escape syntax.
---

diff --git a/doc/coreutils.texi b/doc/coreutils.texi
index 206f8dd823..982ad3c743 100644
--- a/doc/coreutils.texi
+++ b/doc/coreutils.texi
@@ -10302,7 +10302,9 @@ characters, specified as
 four hexadecimal digits @var{hhhh}, and @samp{\U} for 32-bit Unicode
 characters, specified as eight hexadecimal digits @var{hhhhhhhh}.
 @command{printf} outputs the Unicode characters
-according to the @env{LC_CTYPE} locale.
+according to the @env{LC_CTYPE} locale.  Unicode characters in the ranges
+U+0000...U+009F, U+D800...U+DFFF cannot be specified by this syntax, except
+for U+0024 ($), U+0040 (@@), and U+0060 (@`).
 
 The processing of @samp{\u} and @samp{\U} requires a full-featured
 @code{iconv} facility.  It is activated on systems with glibc 2.2 (or newer),