Fix styling of Unicode codepoints in manuals

* doc/lispref/nonascii.texi (Character Properties):
* doc/lispref/display.texi (Glyphless Chars)
(Bidirectional Display):
* doc/emacs/search.texi (Lax Search):
* doc/emacs/text.texi (Quotation Marks):
* doc/emacs/basic.texi (Inserting Text): Canonicalize the
style of "U+NNNN CHARACTER NAME".  (Bug#35885)

2 files changed, 17 insertions, 16 deletions

diff --git a/doc/lispref/display.texi b/doc/lispref/display.texi
index b07999432ce..2ff73b08bdb 100644
--- a/doc/lispref/display.texi
+++ b/doc/lispref/display.texi
@@ -7269,9 +7269,9 @@ Non-@acronym{ASCII}, non-printing characters @code{U+0080} to
 @samp{\230}).
 
 @item format-control
-Characters of Unicode General Category [Cf], such as @samp{U+200E}
-(Left-to-Right Mark), but excluding characters that have graphic
-images, such as @samp{U+00AD} (Soft Hyphen).
+Characters of Unicode General Category [Cf], such as U+200E
+@sc{left-to-right mark}, but excluding characters that have graphic
+images, such as U+00AD @sc{soft hyphen}.
 
 @item no-font
 Characters for which there is no suitable font, or which cannot be
@@ -7654,12 +7654,12 @@ problem:
 
 @itemize @minus
 @item
-Append the special character @code{U+200E}, LEFT-TO-RIGHT MARK, or
+Append the special character U+200E @sc{left-to-right mark}, or
 @acronym{LRM}, to the end of each field that may have bidirectional
 content, or prepend it to the beginning of the following field.  The
 function @code{bidi-string-mark-left-to-right}, described below, comes
 in handy for this purpose.  (In a right-to-left paragraph, use
-@code{U+200F}, RIGHT-TO-LEFT MARK, or @acronym{RLM}, instead.)  This
+U+200F @sc{right-to-left mark}, or @acronym{RLM}, instead.)  This
 is one of the solutions recommended by the UBA.
 
 @item
diff --git a/doc/lispref/nonascii.texi b/doc/lispref/nonascii.texi
index d2eb2cb0728..ca99cbfcde3 100644
--- a/doc/lispref/nonascii.texi
+++ b/doc/lispref/nonascii.texi
@@ -550,8 +550,8 @@ characters whose @code{Numeric_Type} is @samp{Numeric}.  The value of
 this property is a number.  Examples of characters that have this
 property include fractions, subscripts, superscripts, Roman numerals,
 currency numerators, and encircled numbers.  For example, the value of
-this property for the character @code{U+2155} (@sc{vulgar fraction one
-fifth}) is @code{0.2}.  For characters that don't have any numeric
+this property for the character U+2155 @sc{vulgar fraction one
+fifth} is @code{0.2}.  For characters that don't have any numeric
 value, and for unassigned codepoints, the value is @code{nil}, which
 means @acronym{NaN}.
 
@@ -622,23 +622,24 @@ is @code{nil}, which means the character itself.
 @item special-uppercase
 Corresponds to Unicode language- and context-independent special upper-casing
 rules.  The value of this property is a string (which may be empty).  For
-example mapping for @code{U+00DF} (@sc{latin small letter sharp s}) is
+example mapping for U+00DF @sc{latin small letter sharp s} is
 @code{"SS"}.  For characters with no special mapping, the value is @code{nil}
 which means @code{uppercase} property needs to be consulted instead.
 
 @item special-lowercase
-Corresponds to Unicode language- and context-independent special lower-casing
-rules.  The value of this property is a string (which may be empty).  For
-example mapping for @code{U+0130} (@sc{latin capital letter i with dot above})
-the value is @code{"i\u0307"} (i.e. 2-character string consisting of @sc{latin
-small letter i} followed by @sc{combining dot above}).  For characters with no
-special mapping, the value is @code{nil} which means @code{lowercase} property
-needs to be consulted instead.
+Corresponds to Unicode language- and context-independent special
+lower-casing rules.  The value of this property is a string (which may
+be empty).  For example mapping for U+0130 @sc{latin capital letter i
+with dot above} the value is @code{"i\u0307"} (i.e. 2-character string
+consisting of @sc{latin small letter i} followed by U+0307
+@sc{combining dot above}).  For characters with no special mapping,
+the value is @code{nil} which means @code{lowercase} property needs to
+be consulted instead.
 
 @item special-titlecase
 Corresponds to Unicode unconditional special title-casing rules.  The value of
 this property is a string (which may be empty).  For example mapping for
-@code{U+FB01} (@sc{latin small ligature fi}) the value is @code{"Fi"}.  For
+U+FB01 @sc{latin small ligature fi} the value is @code{"Fi"}.  For
 characters with no special mapping, the value is @code{nil} which means
 @code{titlecase} property needs to be consulted instead.
 @end table