Correct me if I'm wrong, but it seems to me that the manual for wc(1)
has been updated to be compliant with the standard but implementation
not. -m and -c both set dochar=1 and I can't see any difference in
further execution. They're not "mutually exclusive" either (opposed to
manual) as it's the same thing.
-m option seems to be implemented in FreeBSD and NetBSD, where they
differentiate between counting bytes and multi-byte characters. I'm not
sure whether it's needed/wanted here, so sending only a diff that
removes misleading information.
Index: wc.1
===================================================================
RCS file: /cvs/src/usr.bin/wc/wc.1,v
retrieving revision 1.23
diff -u -p -u -r1.23 wc.1
--- wc.1 15 Nov 2014 13:55:25 -0000 1.23
+++ wc.1 1 Jan 2015 13:15:35 -0000
@@ -37,11 +37,10 @@
.Os
.Sh NAME
.Nm wc
-.Nd word, line, and byte or character count
+.Nd word, line, and byte count
.Sh SYNOPSIS
.Nm wc
-.Op Fl c | m
-.Op Fl hlw
+.Op Fl chlmw
.Op Ar
.Sh DESCRIPTION
The
@@ -72,8 +71,8 @@ using powers of 2 for sizes (K=1024, M=1
The number of lines in each input file
is written to the standard output.
.It Fl m
-The number of characters in each input file
-is written to the standard output.
+Equivalent to
+.Fl c
.It Fl w
The number of words in each input file
is written to the standard output.
@@ -85,11 +84,6 @@ only reports the information requested b
The default action is equivalent to the flags
.Fl clw
having been specified.
-The
-.Fl c
-and
-.Fl m
-options are mutually exclusive.
.Pp
If no file names are specified, the standard input is used
and a file name is not output.
@@ -103,13 +97,7 @@ input file of the form:
lines words bytes file_name
.Ed
.Pp
-If the
-.Fl m
-option is specified,
-the number of bytes is replaced by
-the number of characters in the listing above.
The counts for lines, words, and bytes
-.Pq or characters
are integers separated by spaces.
.Sh EXIT STATUS
.Ex -std wc
@@ -130,3 +118,8 @@ A
.Nm
utility appeared in
.At v1 .
+.Sh BUGS
+The
+.Fl m
+flag can't be used for counting multi-byte characters as can be found in
+other implementations.
Index: wc.c
===================================================================
RCS file: /cvs/src/usr.bin/wc/wc.c,v
retrieving revision 1.16
diff -u -p -u -r1.16 wc.c
--- wc.c 27 Nov 2013 13:32:02 -0000 1.16
+++ wc.c 1 Jan 2015 12:16:40 -0000
@@ -57,7 +57,7 @@ main(int argc, char *argv[])
setlocale(LC_ALL, "");
- while ((ch = getopt(argc, argv, "lwchm")) != -1)
+ while ((ch = getopt(argc, argv, "chlmw")) != -1)
switch(ch) {
case 'l':
doline = 1;
@@ -75,7 +75,7 @@ main(int argc, char *argv[])
case '?':
default:
(void)fprintf(stderr,
- "usage: %s [-c | -m] [-hlw] [file ...]\n",
+ "usage: %s [-chlmw] [file ...]\n",
__progname);
exit(1);
}
