Add back in a check that the leading `-' exists for arguments. This

[mandoc.git] / mandoc_char.7

diff --git a/mandoc_char.7 b/mandoc_char.7
index 20b9f9475f3a4d6389de0cb2105a10da17109c7d..d0c5dd7f801fd864bbb120580c6f8672b90bf87a 100644 (file)
--- a/mandoc_char.7
+++ b/mandoc_char.7
@@ -1,4 +1,4 @@
-.\"    $Id: mandoc_char.7,v 1.43 2011/04/20 22:50:22 kristaps Exp $
+.\"    $Id: mandoc_char.7,v 1.45 2011/05/15 15:30:33 kristaps Exp $

 .\"
 .\" Copyright (c) 2009 Kristaps Dzonsons <kristaps@bsd.lv>
 .\"
 .\"
 .\" Copyright (c) 2009 Kristaps Dzonsons <kristaps@bsd.lv>
 .\"


@@ -14,7 +14,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"

-.Dd $Mdocdate: April 20 2011 $
+.Dd $Mdocdate: May 15 2011 $

 .Dt MANDOC_CHAR 7
 .Os
 .Sh NAME
 .Dt MANDOC_CHAR 7
 .Os
 .Sh NAME


@@ -520,6 +520,20 @@ portable.
 .It \e*(Px   Ta \*(Px       Ta POSIX standard name
 .It \e*(Ai   Ta \*(Ai       Ta ANSI standard name
 .El
 .It \e*(Px   Ta \*(Px       Ta POSIX standard name
 .It \e*(Ai   Ta \*(Ai       Ta ANSI standard name
 .El

+.Sh UNICODE CHARACTERS
+The escape sequence
+.Pp
+.Dl \e[uXXXX]
+.Pp
+is interpreted as a Unicode codepoint.
+The codepoint must be in the range above U+0080 and less than U+10FFFF.
+For compatibility, points must be zero-padded to four characters; if
+greater than four characters, no zero padding is allowed.
+Unicode surrogates are not allowed.
+.\" .Pp
+.\" Unicode glyphs attenuate to the
+.\" .Sq \&?
+.\" character if invalid or not rendered by current output media.

 .Sh NUMBERED CHARACTERS
 For backward compatibility with existing manuals,
 .Xr mandoc 1
 .Sh NUMBERED CHARACTERS
 For backward compatibility with existing manuals,
 .Xr mandoc 1


@@ -542,6 +556,9 @@ troff implementations, at this time limited to GNU troff
 .Pp
 .Bl -dash -compact
 .It
 .Pp
 .Bl -dash -compact
 .It

+The \eN\(aq\(aq escape sequence is limited to printable characters; in
+groff, it accepts arbitrary character numbers.
+.It

 In
 .Fl T Ns Cm ascii ,
 the
 In
 .Fl T Ns Cm ascii ,
 the