Date: Wed, 30 Aug 1995 08:23:40 -0700 From: "Jordan K. Hubbard" <jkh@time.cdrom.com> To: current@freebsd.org Subject: What do you think of these patches to echo? Message-ID: <4423.809796220@time.cdrom.com>
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If you think I'm going to commit this without review, you're
crazy.. :-)
Synopsis:
add \c handling to echo (at the end of an arglist, is
synonymous with echo -n ...)
Why:
We can make ourselves iBCS2 compliant with an LKM, but we
can't do anything about the differing semantics of various
commands.
Fortunately, very few installation shell scripts for SCO
do things like `ps -deaf|..' but they DO do a lot of
`echo "foo bar bar blatt?\c "' sorts of things and
this looks really cheesy when you're installing WordPerfect
for SCO or something.
Disclaimer:
I don't propose that we change all the commands to be SCO
compliant (heavens!) by any stretch, simply that the change to
this one is innocuous enough that we get good "bang for the
buck" in increasing the quality of our iBCS2 coverage from one
very small change.
POSIX doesn't seem to have anything to say about this at all.
Diffs:
Index: echo.c
===================================================================
RCS file: /home/ncvs/src/bin/echo/echo.c,v
retrieving revision 1.2
diff -c -r1.2 echo.c
*** 1.2 1994/09/24 02:55:18
--- echo.c 1995/08/28 19:54:00
***************
*** 62,69 ****
else
nflag = 0;
! while (*argv) {
! (void)printf("%s", *argv);
if (*++argv)
putchar(' ');
}
--- 63,76 ----
else
nflag = 0;
! while (argv[0]) {
! int len = strlen(argv[0]);
!
! if (len >= 2 && !argv[1] && argv[0][len - 2] == '\\' && argv[0][len - 1] == 'c') {
! argv[0][len - 2] = '\0';
! nflag = 1;
! }
! (void)printf("%s", argv[0]);
if (*++argv)
putchar(' ');
}
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