Commit: patch 9.2.0580: xxd: binary output is not colored with -R

[Christian Brabandt]

patch 9.2.0580: xxd: binary output is not colored with -R

Commit: https://github.com/vim/vim/commit/f0cae9d5abba1ad97f8c78c8d3cbb0d1c46d5aff
Author: Hirohito Higashi <h.eas...@gmail.com>
Date: Sun May 31 21:11:55 2026 +0000

patch 9.2.0580: xxd: binary output is not colored with -R

Problem: With xxd the -R option colors the hex output but leaves the
binary output produced by -b uncolored (Boris Verkhovskiy)
Solution: Color the binary (bits) output per byte with the same colors as
the hex output, update the documentation and add a test
(Hirohito Higashi).

fixes: #20385
closes: #20401

Signed-off-by: Hirohito Higashi <h.eas...@gmail.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/doc/xxd.1 b/runtime/doc/xxd.1
index 48166e03c..d80c5e9c0 100644
--- a/runtime/doc/xxd.1
+++ b/runtime/doc/xxd.1
@@ -142,9 +142,9 @@ anywhere. Use the combination
to read a bits dump instead of a hex dump.
.TP
.IR \-R " " when
-In the output the hex-value and the value are both colored with the same color
-depending on the hex-value. Mostly helping to differentiate printable and
-non-printable characters.
+In the output both the data column (hex, or bits with \-b) and the character
+column are colored with the same color depending on the byte value. Mostly
+helping to differentiate printable and non-printable characters.
.I IwhenP
is
.BR never ", " always ", or " auto " (default: auto).
diff --git a/runtime/doc/xxd.man b/runtime/doc/xxd.man
index 8beba9c88..17a9dd14b 100644
--- a/runtime/doc/xxd.man
+++ b/runtime/doc/xxd.man
@@ -101,11 +101,12 @@ OPTIONS
instead of a hex dump.

-R when
- In the output the hex-value and the value are both colored with
- the same color depending on the hex-value. Mostly helping to
- differentiate printable and non-printable characters. when is
- never, always, or auto (default: auto). When the $NO_COLOR en‐
- vironment variable is set, colorization will be disabled.
+ In the output both the data column (hex, or bits with -b) and
+ the character column are colored with the same color depending
+ on the byte value. Mostly helping to differentiate printable and
+ non-printable characters. when is never, always, or auto (de‐
+ fault: auto). When the $NO_COLOR environment variable is set,
+ colorization will be disabled.

-seek offset
When used after -r: revert with <offset> added to file positions
diff --git a/src/testdir/test_xxd.vim b/src/testdir/test_xxd.vim
index 430a07ccf..990683b17 100644
--- a/src/testdir/test_xxd.vim
+++ b/src/testdir/test_xxd.vim
@@ -663,6 +663,22 @@ call writefile(data,'Xinput')

endfunc

+func Test_xxd_color_bits()
+ " Binary output (-b) should be colored per byte like the hex output,
+ " see issue #20385. Bytes cover the white/yellow/green/blue color groups.
+ let s:test = 1
+ call writefile(0z000941FF, 'Xxxdbits')
+
+ %d
+ exe '0r! ' . s:xxd_cmd . ' -b -R always -c 4 Xxxdbits'
+ $d
+ let expected = [
+ \ "00000000: [1;37m00000000 [0m [1;33m00001001 [0m [1;32m01000001 [0m [1;34m11111111 [0m [1;37m. [0m [1;33m. [0m [1;32mA [0m [1;34m. [0m"]
+ call assert_equal(expected, getline(1, '$'), s:Mess(s:test))
+
+ call delete('Xxxdbits')
+endfunc
+
func Test_xxd_color2()
CheckScreendump
CheckUnix
diff --git a/src/version.c b/src/version.c
index 95107bb28..e39f67aad 100644
--- a/src/version.c
+++ b/src/version.c
@@ -729,6 +729,8 @@ static char *(features[]) =

static int included_patches[] =
{ /* Add new patch number below this line */
+/**/
+ 580,
/**/
579,
/**/
diff --git a/src/xxd/xxd.c b/src/xxd/xxd.c
index fb45f6c28..323d5a398 100644
--- a/src/xxd/xxd.c
+++ b/src/xxd/xxd.c
@@ -75,6 +75,7 @@
* 19.03.2026 Add -t option to end output with terminating null
* 25.03.2026 Fix color output issues
* 26.04.2026 Use unsigned long for printing offsets
+ * 31.05.2026 Colorize binary output
*
* (c) 1990-1998 by Juergen Weigert (jnwe...@gmail.com)
*
@@ -155,7 +156,7 @@ extern void perror __P((char *));
# endif
#endif

-char version[] = "xxd 2026-04-26 by Juergen Weigert et al.";
+char version[] = "xxd 2026-05-31 by Juergen Weigert et al.";
#ifdef WIN32
char osver[] = " (Win32)";
#else
@@ -1194,8 +1195,15 @@ main(int argc, char *argv[])
}
else /* hextype == HEX_BITS */
{
+ if (color)
+ cur_color = get_color_char(e, ebcdic);
+
for (i = 7; i >= 0; i--)
- l[c++] = (e & (1 << i)) ? '1' : '0';
+ {
+ if (color)
+ colors[c] = cur_color;
+ l[c++] = (e & (1 << i)) ? '1' : '0';
+ }
}
if (e)
nonzero++;