Document "string is unicode". More documentation fixes.

3 files changed, 5 insertions, 4 deletions

diff --git a/doc/StringObj.3 b/doc/StringObj.3
index 05b5251..5a67055 100644
--- a/doc/StringObj.3
+++ b/doc/StringObj.3
@@ -204,8 +204,8 @@ where the caller does not need the length of the unicode string
 representation.
 .PP
 \fBTcl_GetUniChar\fR returns the \fIindex\fR'th character in the
-value's Unicode representation. If the index is out of range or
-it references a low surrogate preceded by a high surrogate, it returns -1;
+value's Unicode representation. If the index is out of range
+it returns -1;
 .PP
 \fBTcl_GetRange\fR returns a newly created value comprised of the
 characters between \fIfirst\fR and \fIlast\fR (inclusive) in the value's
diff --git a/doc/Utf.3 b/doc/Utf.3
index 49dfd88..6dd083f 100644
--- a/doc/Utf.3
+++ b/doc/Utf.3
@@ -305,8 +305,7 @@ byte \fIsrc[0]\fR nor the byte \fIstart[-1]\fR nor the byte
 Pascal Ord() function.  It returns the Unicode character represented at the
 specified character (not byte) \fIindex\fR in the UTF-8 string
 \fIsrc\fR.  The source string must contain at least \fIindex\fR
-characters.  If \fIindex\fR is negative or \fIindex\fR points
-to the second half of a surrogate pair, it returns -1.
+characters.  If \fIindex\fR is negative it returns -1.
 .PP
 \fBTcl_UtfAtIndex\fR returns a pointer to the specified character (not
 byte) \fIindex\fR in the UTF-8 string \fIsrc\fR.  The source string must
diff --git a/doc/string.n b/doc/string.n
index 5c493f5..76f98c6 100644
--- a/doc/string.n
+++ b/doc/string.n
@@ -174,6 +174,8 @@ zero width no-break space (U+feff) (=BOM).
 .IP \fBtrue\fR 12
 Any of the forms allowed to \fBTcl_GetBoolean\fR where the value is
 true.
+.IP \fBunicode\fR 12
+Any Unicode character, except surrogates and noncharacters
 .IP \fBupper\fR 12
 Any upper case alphabet character in the Unicode character set.
 .IP \fBwideinteger\fR 12