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master f018cff: Use nobreak-space on all non-ASCII whitespace characters
From: |
Lars Ingebrigtsen |
Subject: |
master f018cff: Use nobreak-space on all non-ASCII whitespace characters |
Date: |
Fri, 30 Oct 2020 08:13:55 -0400 (EDT) |
branch: master
commit f018cffca0098ad1b82c51730a6d6cf146e3c488
Author: Neil Roberts <bpeeluk@yahoo.co.uk>
Commit: Lars Ingebrigtsen <larsi@gnus.org>
Use nobreak-space on all non-ASCII whitespace characters
* doc/emacs/display.texi (Text Display): Document it.
* src/xdisp.c (get_next_display_element): Use blankp to test whether
to use the nobreak_space face (bug#44236).
---
doc/emacs/display.texi | 3 ++-
etc/NEWS | 6 ++++++
src/xdisp.c | 5 +++--
3 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/doc/emacs/display.texi b/doc/emacs/display.texi
index dd2c6e2..02859d5 100644
--- a/doc/emacs/display.texi
+++ b/doc/emacs/display.texi
@@ -1608,7 +1608,8 @@ can cause problems if they are entered into a buffer
without your
realization, e.g., by yanking; for instance, source code compilers
typically do not treat non-@acronym{ASCII} spaces as whitespace
characters. To deal with this problem, Emacs displays such characters
-specially: it displays @code{U+00A0} (no-break space) with the
+specially: it displays @code{U+00A0} (no-break space) and other
+characters from the Unicode horizontal space class with the
@code{nobreak-space} face, and it displays @code{U+00AD} (soft
hyphen), @code{U+2010} (hyphen), and @code{U+2011} (non-breaking
hyphen) with the @code{nobreak-hyphen} face. To disable this, change
diff --git a/etc/NEWS b/etc/NEWS
index 8504186..11783ef 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -163,6 +163,12 @@ your init file:
(setq frame-title-format '(multiple-frames "%b"
("" invocation-name "@" system-name)))
++++
+** 'nobreak-char-display' now also affects all non-ASCII space characters.
+Previously, this was limited only to NO-BREAK-SPACE and hyphen
+characters. Now it also covers the rest of the non-ASCII Unicode
+space characters.
+
* Editing Changes in Emacs 28.1
diff --git a/src/xdisp.c b/src/xdisp.c
index 5c80e37..0e5dffb 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -7555,7 +7555,7 @@ get_next_display_element (struct it *it)
non-ASCII spaces and hyphens specially. */
if (! ASCII_CHAR_P (c) && ! NILP (Vnobreak_char_display))
{
- if (c == NO_BREAK_SPACE)
+ if (blankp (c))
nonascii_space_p = true;
else if (c == SOFT_HYPHEN || c == HYPHEN
|| c == NON_BREAKING_HYPHEN)
@@ -34747,7 +34747,8 @@ If the value is t, Emacs highlights non-ASCII chars
which have the
same appearance as an ASCII space or hyphen, using the `nobreak-space'
or `nobreak-hyphen' face respectively.
-U+00A0 (no-break space), U+00AD (soft hyphen), U+2010 (hyphen), and
+All of the non-ASCII characters in the Unicode horizontal whitespace
+character class, as well as U+00AD (soft hyphen), U+2010 (hyphen), and
U+2011 (non-breaking hyphen) are affected.
Any other non-nil value means to display these characters as an escape
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