scratch/fix-locked-narrowing dcb2379a46: Minor improvements to labeled narrowing

[Gregory Heytings]

branch: scratch/fix-locked-narrowing
commit dcb2379a463678bdadd05ee39d61e7da84c71c5e
Author: Gregory Heytings <gregory@heytings.org>
Commit: Gregory Heytings <gregory@heytings.org>

    Minor improvements to labeled narrowing
    
    * lisp/subr.el (internal--with-narrowing):
    (internal--without-narrowing): Remove unnecessary 'progn'.
    
    * etc/NEWS: Mention 'with-narrowing' in the entry about long
    lines.
    
    * doc/lispref/positions.texi (Narrowing): Fix typo.
    
    * doc/lispref/display.texi (Auto Faces): Use @pxref.
    
    * doc/lispref/commands.texi (Command Overview): Use @pxref.
---
 doc/lispref/commands.texi  |  4 ++--
 doc/lispref/display.texi   |  2 +-
 doc/lispref/positions.texi |  2 +-
 etc/NEWS                   |  5 +++--
 lisp/subr.el               | 14 ++++++--------
 5 files changed, 13 insertions(+), 14 deletions(-)

diff --git a/doc/lispref/commands.texi b/doc/lispref/commands.texi
index be34027d21..9723c279a4 100644
--- a/doc/lispref/commands.texi
+++ b/doc/lispref/commands.texi
@@ -100,8 +100,8 @@ emacs, The GNU Emacs Manual}) runs these two hooks just as 
a keyboard
 command does.
 
   Note that, when the buffer text includes very long lines, these two
-hooks are called as if they were in a @code{with-narrowing} form (see
-@ref{Narrowing}), with a
+hooks are called as if they were in a @code{with-narrowing} form
+(@pxref{Narrowing}), with a
 @code{long-line-optimizations-in-command-hooks} label and with the
 buffer narrowed to a portion around point.
 
diff --git a/doc/lispref/display.texi b/doc/lispref/display.texi
index 1b7ef00663..f0ca7440c6 100644
--- a/doc/lispref/display.texi
+++ b/doc/lispref/display.texi
@@ -3503,7 +3503,7 @@ usually assign faces to around 400 to 600 characters at 
each call.
 
 Note that, when the buffer text includes very long lines, these
 functions are called as if they were in a @code{with-narrowing} form
-(see @ref{Narrowing}), with a
+(@pxref{Narrowing}), with a
 @code{long-line-optimizations-in-fontification-functions} label and
 with the buffer narrowed to a portion around @var{pos}.
 @end defvar
diff --git a/doc/lispref/positions.texi b/doc/lispref/positions.texi
index e7d5c610d6..bad83e1be2 100644
--- a/doc/lispref/positions.texi
+++ b/doc/lispref/positions.texi
@@ -1193,5 +1193,5 @@ restores the saved bounds.  In that case it is equivalent 
to
 
 When the optional @var{label} argument is present however, the
 narrowing set by @code{with-narrowing} with the same @var{label}
-argument are lifted.
+argument is lifted.
 @end defspec
diff --git a/etc/NEWS b/etc/NEWS
index 01e7f2cfb0..de4f65ebe6 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -619,8 +619,9 @@ In buffers in which these display optimizations are in 
effect, the
 'fontification-functions', 'pre-command-hook' and 'post-command-hook'
 hooks are executed on a narrowed portion of the buffer, whose size is
 controlled by the options 'long-line-optimizations-region-size' and
-'long-line-optimizations-bol-search-limit'.  This may, in particular,
-cause occasional mis-fontifications in these buffers.
+'long-line-optimizations-bol-search-limit', as if they were in a
+'with-narrowing' form.  This may, in particular, cause occasional
+mis-fontifications in these buffers.
 
 The new function 'long-line-optimizations-p' returns non-nil when
 these optimizations are in effect in the current buffer.
diff --git a/lisp/subr.el b/lisp/subr.el
index 7ed0cb02a7..d280c7fef1 100644
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -3961,10 +3961,9 @@ same LABEL argument.
 (defun internal--with-narrowing (start end body &optional label)
   "Helper function for `with-narrowing', which see."
   (save-restriction
-    (progn
-      (narrow-to-region start end)
-      (if label (internal--lock-narrowing label))
-      (funcall body))))
+    (narrow-to-region start end)
+    (if label (internal--lock-narrowing label))
+    (funcall body)))
 
 (defmacro without-narrowing (&rest rest)
   "Execute BODY without restrictions.
@@ -3984,10 +3983,9 @@ are lifted.
 (defun internal--without-narrowing (body &optional label)
   "Helper function for `without-narrowing', which see."
   (save-restriction
-    (progn
-      (if label (internal--unlock-narrowing label))
-      (widen)
-      (funcall body))))
+    (if label (internal--unlock-narrowing label))
+    (widen)
+    (funcall body)))
 
 (defun find-tag-default-bounds ()
   "Determine the boundaries of the default tag, based on text at point.