Commit Graph

269 Commits

Author SHA1 Message Date
Denis Vlasenko
666da5e2c6 merge post-1.3.0 fixes 2006-12-26 18:17:42 +00:00
Denis Vlasenko
b95636c52f remove casts from xmalloc() 2006-12-19 23:36:04 +00:00
Denis Vlasenko
9f739445cd inline strcmp(s, "-") [actually macro-ize it for now - gcc is too stupid] 2006-12-16 23:49:13 +00:00
Denis Vlasenko
2ea630f9a5 bb_makedev: fix for glibc 2.3.2
sed: fix C++ style declaration
2006-12-10 02:52:19 +00:00
Denis Vlasenko
2f8f71b20d sed: style fixes 2006-12-10 02:09:12 +00:00
Denis Vlasenko
1375bc7b67 sed: fix handling of files not ending in '\n' 2006-12-02 20:12:12 +00:00
Denis Vlasenko
8b22b07bc5 sed: improve handling of NULs 2006-12-02 17:58:10 +00:00
Denis Vlasenko
d3d004dd35 last nail into error_msg() (de)capitalization 2006-10-27 09:02:31 +00:00
Denis Vlasenko
ddec5af6b0 rename functions to more understandable names 2006-10-26 23:25:17 +00:00
Denis Vlasenko
8077850330 sed: mostly style fixes, very small changes in actual code 2006-10-25 12:46:46 +00:00
Denis Vlasenko
d18a3a20db use skip_whitespace where appropriate 2006-10-25 12:46:03 +00:00
Denis Vlasenko
2d5ca60bfb bb_get_[chomped]line_from_file wasn't descriptive enough.
Renaming...
2006-10-12 22:43:20 +00:00
Denis Vlasenko
67b23e6043 getopt_ulflags -> getopt32.
It is impossible to formulate sane ABI based on
size of ulong because it can be 32-bit or 64-bit.
Basically it means that you cannot portably use
more that 32 option chars in one call anyway...
Make it explicit.
2006-10-03 21:00:06 +00:00
Denis Vlasenko
40920825d5 rename bb_default_error_retval -> xfunc_error_retval 2006-10-03 20:28:06 +00:00
Denis Vlasenko
9275814a9e lots of silly indent fixes 2006-10-03 19:56:34 +00:00
Denis Vlasenko
e2016e145b sed: -e options were handled in reverse order. fix that. 2006-10-01 21:37:40 +00:00
Denis Vlasenko
b97c9842a5 sed: unbreak multiple -e, -f option handling (my fault) 2006-10-01 21:05:12 +00:00
Denis Vlasenko
750fc6d7bb sed: getopt_ulflags'isation 2006-09-22 08:56:03 +00:00
Rob Landley
e9a7a6212b Change license statements (and clean up headers) on some of the files that
Erik or I are primary copyright holders on.
2006-09-22 02:52:41 +00:00
Denis Vlasenko
9213a9e0f2 whitespace cleanup 2006-09-17 16:28:10 +00:00
Rob Landley
d35c0efddb Bugfix for: echo '123456789' | sed 's/./|&/5' 2006-09-08 00:01:02 +00:00
Denis Vlasenko
6d655be5df removed a lot of trailing \n in bb_msg() calls. It is added
automatically by function itself.
2006-09-06 19:02:46 +00:00
Rob Landley
d921b2ecc0 Remove bb_ prefixes from xfuncs.c (and a few other places), consolidate
things like xasprintf() into xfuncs.c, remove xprint_file_by_name() (it only
had one user), clean up lots of #includes...  General cleanup pass.  What I've
been doing for the last couple days.

And it conflicts!  I've removed httpd.c from this checkin due to somebody else
touching that file.  It builds for me.  I have to catch a bus.  (Now you know
why I'm looking forward to Mercurial.)
2006-08-03 15:41:12 +00:00
Rob Landley
4795e4e011 Rich Filker spotted that sed -e 's/xxx/[/' didn't work right. Did a smaller
fix than his, and shrank the code a bit on top of that so the net size is
smaller, and added a test to the test suite for this case.  Plus I cleaned up
the #includes and removed unnecessary "const"s while I was there.
2006-07-26 17:25:08 +00:00
Rob Landley
ea7c18514b Fix http://bugs.busybox.net/view.php?id=826 in which "(echo; echo) | sed x"
crashes because the empty state of the hold space is NULL but the empty
state of the pattern space is "".
2006-06-28 13:50:59 +00:00
Bernhard Reutner-Fischer
19008b8373 - reuse strings and messages. Saves about 600B 2006-06-07 20:17:41 +00:00
Rob Landley
12d87550a3 Confirming it's not needed. 2006-06-05 17:32:44 +00:00
Bernhard Reutner-Fischer
a3d4bf38b0 - use bb functions instead of handrolling stuff.
- add XXX question about supposedly superfluous else clause
   text	   data	    bss	    dec	    hex	filename
   5918	      0	      0	   5918	   171e	editors/sed.o.orig
   5901	      0	      0	   5901	   170d	editors/sed.o
2006-06-03 21:40:11 +00:00
Rob Landley
8bb50782a5 Change llist_add_* to take the address of the list rather than returning the new
head, and change all the callers.
2006-05-26 23:44:51 +00:00
Rob Landley
5fc467e758 Yann Morin spotted some leftover flotsam from halfway through the recent
llist.c interface change that accidentally got checked in.  My bad.
2006-05-24 17:45:47 +00:00
Rob Landley
9ffd42317b Minor cleanups: Convert a few calloc() calls to xzalloc, remove unnecessary
memset, collate variable declarations...
2006-05-21 18:30:35 +00:00
Rob Landley
e3f5a3fd82 Convert sed's static variables to a single global structure. 2006-05-09 03:53:55 +00:00
Rob Landley
0b65628395 Move sed over to the generic llist_t for append. Saves about 90 bytes. 2006-05-08 22:17:23 +00:00
Rob Landley
1f305dc0fd Portability patch from rfelker. The bb_asprintf.c thing needs an eventual
follow up in platform.h to set the #ifdef, but the workaround works for
everybody, so...
2006-03-09 22:21:20 +00:00
Rob Landley
dfba741457 Robert P. Day removed 8 gazillion occurrences of "extern" on function
definitions.  (That should only be on prototypes.)
2006-03-06 20:47:33 +00:00
Bernhard Reutner-Fischer
c0bb308389 - silence warning about "'free_and_close_stuff' used but never defined" 2006-03-02 10:06:22 +00:00
Bernhard Reutner-Fischer
b7f39732f8 - fix compilation of sed.
error: static declaration of 'free_and_close_stuff' follows non-static declaration
  Tiny whitespace cleanup while at it,
  also make sure that we don't use CONFIG_ anymore.

Rob, hope this is ok w/ you..
2006-03-01 20:14:16 +00:00
Rob Landley
e7c43b66d7 Cleanup patch from Denis Vlasenko. Mostly variants of removing the if(x)
from before "if(x) free(x)".
2006-03-01 16:39:45 +00:00
Rob Landley
2b26fd5570 A few changes falling out from the effort to make sed handle embedded NUL bytes.
Checking in to reduce the diff between my tree and svn...
2006-02-24 02:30:39 +00:00
Tim Riker
c1ef7bdd8d just whitespace 2006-01-25 00:08:53 +00:00
Rob Landley
fae1dc8620 Support # comments after s/// option list. 2005-11-20 07:44:35 +00:00
Rob Landley
c63fe9137f \0 is a synonym for &. Our own "make allbaseconfig" breaks without this. 2005-10-30 10:08:13 +00:00
"Vladimir N. Oleynik"
23f62fc6f3 split libbb: moved xregcomp separatelly for speed up recompile 2005-09-14 16:59:11 +00:00
Rob Landley
babd3fbba6 Missing break was screwing up 'y//' command. Bug #248. 2005-09-02 00:10:06 +00:00
Rob Landley
93850a56b2 Patch from Colin Watson (mangled slightly by Rob Landley):
This patch implements the 'T' command in sed. This is a GNU extension,
but one of the udev hotplug scripts uses it, so I need it in busybox
anyway.

Includes a test; 'svn add testsuite/sed/sed-branch-conditional-inverted'
after applying.
2005-05-18 06:34:37 +00:00
Rob Landley
5797c7f0ef Doug Swarin pointed out a security bug in the -i option of sed.
While the permissions on the temp file are correct to prevent it from being 
maliciously mangled by passing strangers, (created with 600, opened O_EXCL, 
etc), the permissions on the _directory_ might not be, and we re-open the 
file to convert the filehandle to a FILE * (and automatically get an error 
message and exit if the directory's read-only or out of space or some such).

This opens a potential race condition if somebody's using dnotify on the 
directory, deletes/renames the tempfile, and drops a symlink or something 
there.  Somebody running sed -i as root in a world writeable directory could 
do damage.

I dug up notes on an earlier discussion where we looked at the security 
implications of this (unfortunately on the #uclibc channel rather than email; 
I don't have a transcript, just notes-to-self) which pointed out that if the 
permissions on the directory allow other people's files to be deleted/renamed 
then the original file is vulnerable to sabotage anyway.  However, there are 
two cases that discussion apparently didn't take into account:

1) Using another user's permissions to damage files in other directories you 
can't access (standard symlink attack).

2) Reading data another user couldn't otherwise access by having the new file 
belong to that other user.

This patch uses fdopen to convert the filehandle into a FILE *, rather than
reopening the file.
2005-05-18 05:56:16 +00:00
Eric Andersen
14f5c8d764 Patch from Bernhard Fischer to make a bunch of symbols static
which were otherwise cluttering the global namespace.
2005-04-16 19:39:00 +00:00
Rob Landley
dcc286607c Hiroshi found another bug. Currently sed's $ triggers at end of every file,
and with multiple files SuSv3 says it should only trigger at the end of the
LAST file.

The trivial fix I tried first broke if the last file is empty.  Fixing this
properly required restructuring things to create a file list (actually a
FILE * list), and then processing it all in one go.  (There's probably a
smaller way to do this, merging with append_list perhaps.  But let's get
the behavior correct first.)

Note that editing files in place (-i) needs the _old_ behavior, with $
triggering at the end of each file.

Here's a test of all the things this patch fixed.  gnu and busybox seds produce
the same results with this patch, and different without it.

echo -n -e "1one\n1two\n1three" > ../test1
echo -n > ../test2
echo -e "3one\n3two\n3three" > ../test3
sed -n "$ p" ../test1 ../test2 ../test3
sed -n "$ p" ../test1 ../test2
sed -i -n "$ p" ../test1 ../test2 ../test3
2004-11-25 07:21:47 +00:00
Rob Landley
ce4f0e982b Hiroshi Ito found some bugs. The 'c' command (cut and paste) was hardwired
to not put a newline at the end (which was backwards, it should have been
hardwired _to_ put a newline at the end, whether or not the input line
ended with a newline).  Test case for that:

echo | sed -e '$ctest'

And then this would segfault:

echo | sed -e 'g'

Because pattern_space got freed but the dead pointer was only overwritten
in an if statement that didn't trigger if the hold space was empty.  Oops.

While debugging it, I found out that the hold space is persistent between
multiple input files, so I promoted it to a global and added it to the
memory cleanup.  The relevant test case (to compare with That Other Sed) is:

echo -n woo > woo
sed -e h -e g woo
echo "fish" | sed -e '/woo/h' -e "izap" -e 's/woo/thingy/' -e '/fish/g' woo -

And somebody gratuitously stuck in a c99 int8_t type for something that's just
a flag, so I grouped the darn ints.
2004-10-30 06:54:19 +00:00
Eric Andersen
9855548a77 Rob Landley writes:
add sed -r support.

I bumped into a couple of things that want to use extended regular expressions
in sed, and it really isn't that hard to add.  Can't say I've extensively
tested it, but it's small and isn't going to break anything that doesn't use
it, so...

Rob
2004-05-26 10:03:33 +00:00
Glenn L McGrath
21d7d61de1 Use int instead of char for return type, in theory avoiding a cast 2004-05-16 02:35:49 +00:00
Glenn L McGrath
5d2edbf16d Fix for debian bug #248106, should use int for returned getopt value. 2004-05-10 08:59:17 +00:00
Glenn L McGrath
c6992feee3 Update my email address, document some of my tasks in the AUTHORS file 2004-04-25 05:11:19 +00:00
Eric Andersen
b94669543d This sed patch can only be described as "duh". Stat the source file, chmod
the _destination_ file.  (Ah hah!  That works _much_ better...)  I
implemented the behavior, I just forgot to test this corner of it.  My fault,
sorry...

No, gnu sed -i doesn't preverve ownership information.  I checked.
Permissions, yes, ownership info, no.

Rob
2004-04-21 00:57:14 +00:00
Eric Andersen
faa7d863fc So I'm building a linux from scratch system, using a working script to do this
that the _only_ change to is that gnu sed has been replaced with busybox sed.
And ncurses' install phase hangs.  I trace it down, and it's trying to run
gawk.  (Insert obligatory doubletake, but this is FSF code we're talking
about, so...)

It turns out gawk shells out to sed, ala "sed -f /tmp/blah file.h".  The
/tmp/blah file is basically empty (it contains one character, a newline).  So
basically, gawk is using sed as "cat".  With gnu sed, it works like cat,
anyway.

With busybox sed, it tests if its command list is empty after parsing the
command line, and if the list is empty it takes the first file argument as a
sed command string, and if that leaves the file list empty it tries to read
the data to operate on from stdin.  (Hence the hang, since nothing's coming
in on stdin...)

It _should_ be testing whether there were any instances of -f or -e, not
whether it actually got any commands.  Using sed as cat may be kind of
stupid, but it's valid and gawk relies on this behavior.

Here's a patch to fix it, turning a couple of ints into chars in hopes of
saving a bit of the space this adds.  Comments?

Rob
2004-04-21 00:56:22 +00:00
Eric Andersen
aff114c33d Larry Doolittle writes:
This is a bulk spelling fix patch against busybox-1.00-pre10.
If anyone gets a corrupted copy (and cares), let me know and
I will make alternate arrangements.

Erik - please apply.

Authors - please check that I didn't corrupt any meaning.

Package importers - see if any of these changes should be
passed to the upstream authors.

I glossed over lots of sloppy capitalizations, missing apostrophes,
mixed American/British spellings, and German-style compound words.

What is "pretect redefined for test" in cmdedit.c?

Good luck on the 1.00 release!

      - Larry
2004-04-14 17:51:38 +00:00
Rob Landley
25d82397f7 The last patch broke:
sed -i "/^boo/a fred" ipsec.conf

Which works in gnu sed.  (And is _supposed_ to strip all the whitespace before
"fred".)

It also broke:
sed -i -e "/^boo/a \\" -e "   fred" ipsec.conf

I.E. there can legally be spaces between the a and the backslash at the end of
the line.

And strangely enough, gnu sed accepts the following syntax as well:
sed -i "/^boo/a \\  fred" ipsec.conf

Which is a way of having the significant whitespace at the start of the line,
all on one line.  (But notice that the whitespace BEFORE the slash is still
stripped, as is the slash itself.  And notice that the naieve placement of
"\n" there doesn't work, it puts an n at the start of the appended line.  The
double slashing is for shell escapes because you could escape the quote, you
see.  It's turned into a single backslash.  But \n there is _not_ turned into
a newline by the shell.  So there.)

This makes all three syntaxes work in my tests.  I should probably start
writing better documentation at some point.  I posted my current sedtests.py
file to the list, which needs a lot more tests added as well...
2004-04-01 09:23:30 +00:00
Eric Andersen
46390ed829 Junio Hamano, junio at twinsun dot com writes:
The sed command in busybox 1.0.0-pre8 loses leading whitespace
in 'a' command ('i' and 'c' commands are also affected).  A
patch to fix this is attached at the end of this message.

The following is a transcript that reproduces the problem.  The
first run uses busybox 1.0.0-pre3 as "/bin/sed" command, which
gets the expected result.  Later in the test, /bin/sed symlink
is changed to point at busybox 1.0.0-pre8 and the test script is
run again, which shows the failure.

=== reproduction recipe ===
* Part 1.  Use busybox 1.0.0-pre3 as sed; this works.

root# cd /tmp
root# cat 1.sh
#!/bin/sh

cd /tmp
rm -f ipsec.conf ipsec.conf+
cat >ipsec.conf <<\EOF
version 2.0

config setup
        klipsdebug=none
        plutodebug=none
        plutostderrlog=/dev/null

conn %default
        keyingtries=1
        ...
EOF
sed -e '/^config setup/a\
	nat_traversal=yes' ipsec.conf >ipsec.conf+
mv -f ipsec.conf+ ipsec.conf
root# sh -x 1.sh
+ cd /tmp
+ rm -f ipsec.conf ipsec.conf+
+ cat
+ sed -e /^config setup/a\
        nat_traversal=yes ipsec.conf
+ mv -f ipsec.conf+ ipsec.conf
root# cat ipsec.conf
version 2.0

config setup
        nat_traversal=yes
        klipsdebug=none
        plutodebug=none
        plutostderrlog=/dev/null

conn %default
        keyingtries=1
        ...
root# sed --version
sed: invalid option -- -
BusyBox v1.00-pre3 (2004.02.26-18:47+0000) multi-call binary

Usage: sed [-nef] pattern [files...]

* Part 2.  Continuing from the above, use busybox 1.0.0-pre8
  as sed; this fails.

root# ln -s busybox-pre8 /bin/sed-8
root# mv /bin/sed-8 /bin/sed
root# sed --version
This is not GNU sed version 4.0
root# sed --
BusyBox v1.00-pre8 (2004.03.30-02:44+0000) multi-call binary

Usage: sed [-nef] pattern [files...]
root# sh -x 1.sh
+ cd /tmp
+ rm -f ipsec.conf ipsec.conf+
+ cat
+ sed -e /^config setup/a\
        nat_traversal=yes ipsec.conf
+ mv -f ipsec.conf+ ipsec.conf
root# cat ipsec.conf
version 2.0

config setup
nat_traversal=yes
        klipsdebug=none
        plutodebug=none
        plutostderrlog=/dev/null

conn %default
        keyingtries=1
        ...
root#
=== reproduction recipe ends here ===

This problem was introduced in 1.0.0-pre4.  The problem is that
the command argument parsing code strips leading whitespaces too
aggressively.  When running the above example, the piece of code
in question gets "\n\tnat_traversal=yes" as its argument in
cmdstr variable (shown part in the following patch).  What it
needs to do at this point is to strip the first newline and
nothing else, but it instead strips all the leading whitespaces
at the beginning of the string, thus losing the tab character.
The following patch fixes this.
2004-03-31 11:42:40 +00:00
Eric Andersen
c7bda1ce65 Remove trailing whitespace. Update copyright to include 2004. 2004-03-15 08:29:22 +00:00
Rob Landley
53302f80da Add -i option to sed, to edit files in-place. 2004-02-18 09:54:15 +00:00
Eric Andersen
c06f568dda Rob Landley writes:
While building glibc with busybox as part of the development environment, I
found a bug in glibc's regexec can throw sed into an endless loop.  This
fixes it.  Should I put an #ifdef around it or something?  (Note, this patch
also contains the "this is not gnu sed 4.0" hack I posted earlier, which is
also needed to build glibc...)
2004-02-04 10:57:46 +00:00
Rob Landley
40ec4aeb8e Thinko in s//options. (Whitespace skipping in the wrong place.) 2004-01-04 06:42:14 +00:00
Eric Andersen
52a3c2726e Patch from Matt Kraai:
sed is broken:

 busybox sed -n '/^a/,/^a/p' >output <<EOF
 a
 b
 a
 b
 EOF
 cmp -s output - <<EOF
 a
 b
 a
 EOF

The attached patch fixes it.
2003-12-23 08:53:51 +00:00
Eric Andersen
638da75f4b Fix some warnings that have crept in recently 2003-10-09 08:18:36 +00:00
Glenn L McGrath
586d86cc8c Comaptability with gcc-2.95 2003-10-09 07:22:59 +00:00
Glenn L McGrath
42c25735e6 Patch from Rob Landley;
Moving on to building diffutils, busybox sed needs this patch to get
past the first problem.  (Passing it a multi-line command line argument
with -e works, but if you don't use -e it doesn't break up the multiple
lines...)
2003-10-04 05:27:56 +00:00
Glenn L McGrath
0ad4daa54e Patch from Rob Landley to fix backrefs 2003-10-01 10:26:23 +00:00
Glenn L McGrath
738fb33994 Patch by Rob Landley, fix "newline after edit command" 2003-10-01 06:45:11 +00:00
Glenn L McGrath
aa5a602689 Patch by Rob Landley, work in progress update, fixes lots of bugs,
introduces a few others (but they are being worked on)
2003-10-01 03:06:16 +00:00
Glenn L McGrath
761ec20f81 Fix some typo's, remove some extra free statements 2003-09-24 10:23:39 +00:00
Glenn L McGrath
2570b43e82 Configuration option to define wether to follows GNU sed's behaviour
or the posix standard.
Put the cleanup code back the way it was.
2003-09-16 05:25:43 +00:00
Glenn L McGrath
204ff1cea4 Fix a bug that creapt in recently with substitution subprinting, and add
a test for it.
2003-09-16 01:46:36 +00:00
Glenn L McGrath
977451ef44 Fix a simple mistake with pattern space, and add a test for it 2003-09-15 12:07:48 +00:00
Glenn L McGrath
e3e28d3bb6 Fix some memory allocation problems
----------------------------------------------------------------------
2003-09-15 09:22:04 +00:00
Glenn L McGrath
2eed0e2d47 Add a test for the 'P' command and fix current implementation so it
doesnt permanently modify the pattern space.
2003-09-15 06:28:45 +00:00
Glenn L McGrath
6e5687abc3 A test and fix for the sed 'n' command 2003-09-15 06:12:53 +00:00
Glenn L McGrath
73116311e5 Fix for the sed-append-next-line test 2003-09-15 05:42:05 +00:00
Glenn L McGrath
640c1f547f Fix recursion problem 2003-09-15 04:55:29 +00:00
Glenn L McGrath
294d113adb Memory cleanups and fix for echo "foo" | sed 's/foo/bar/;H;q' 2003-09-14 16:28:08 +00:00
Glenn L McGrath
8417c8c38b Cleanup memory usage 2003-09-14 15:24:18 +00:00
Glenn L McGrath
edc388cf4e The previous fix for 's/a/1/;s/b/2/;t one;p;:one;p' broke the case of
echo fooba | ./busybox sed -n 's/foo//;s/bar/found/p'

I really need to start adding these tests to the testsuite.

keep the substituted and altered flags seperate
2003-09-14 08:52:53 +00:00
Glenn L McGrath
3fe475677a Preserve substitution flag value within the current line.
Fixed the following testcase
# cat strings |./busybox sed -n -f test3.sed
1
1
2
c
c
# cat strings
a
b
c
2003-09-14 07:59:28 +00:00
Glenn L McGrath
f4523562b6 Fix branching commands.
If a label isnt specified, jump to end of script, not the last command
in the script.

Print an error and exit if you try and jump to a non-existant label

Works for the following testcase
# cat strings
a
b
c
d
e
f
g
# cat strings | ./busybox sed -n '/d/b;p'
a
b
c
e
f
g
2003-09-14 06:01:14 +00:00
Glenn L McGrath
8aac05bfe5 Patch from Rob Landley
Fixed a memory leak in add_cmd/add_cmd_str by moving the allocation
of sed_cmd down to where it's actually first needed.
                                                                                
In get_address, if index_of_next_unescaped_regexp_delim ever failed, we
wouldn't notice because the return value was added to idx, which was 
already guaranteed to be > 0.  (This is buried in the changes made when 
I redid get_address to be based on pointer arithmetic, because all the tests 
were gratuitously dereferencing with a constant zero, which wasn't obvious.)
         
Comment in parse_regex_delim was wrong: 's' and 'y' both call it.
 
The reason "sed_cmd->num_backrefs = 0;" isn't needed is that sed_cmd was
allocated with cmalloc, which zeroes memory.

Different handling of space after \ in i...

Different handling of pattern "s/a/b s/c/d"

Cool, resursive reads don't cause a crash. :)

Fixed "sed -f blah filename - < filename" since GNU sed was handling 
both - and filenames on the same line.  (You can even list - more than 
once, although it's immediate EOF...)
2003-09-14 04:06:12 +00:00
Glenn L McGrath
7c59a83a77 Stupid typo 2003-09-14 02:37:46 +00:00
Glenn L McGrath
4dc1d25a30 Fix some memory allocation problems 2003-09-14 01:25:31 +00:00
Glenn L McGrath
f36635cec6 Fix the following testcase by disabling global substitution if the regex
is anchored to the start of line, there can be only one subst.
echo "aah" | sed 's/^a/b/g'
2003-09-13 15:12:22 +00:00
Glenn L McGrath
c18ce373a2 Fix the following testcase by storing the state of the adress match with
the command.
# cat strings
a
b
c
d
e
f
g
# ./busybox sed '1,2d;4,$d' <strings
c
# ./busybox sed '4,$d;1,2d' <strings
# sed '4,$d;1,2d' <strings
c
# sed '1,2d;4,$d' <strings
c
2003-09-13 06:57:39 +00:00
Glenn L McGrath
9b04f1841e Fix the substitution print subcommand, it should only print if its
own substitution matched, not previous ones.
e.g
echo fooba | sed -n 's/foo//;s/bar/found/p'
shouldnt print anything
2003-08-30 04:35:07 +00:00
Glenn L McGrath
91e1978ff0 New commands, 'G' and 'H' 2003-04-26 07:40:07 +00:00
Glenn L McGrath
fc4cb4dbb5 Fix logic error in grouped commands 2003-04-12 16:10:42 +00:00
Glenn L McGrath
d4185b0e15 Fix up indenting 2003-04-11 17:10:23 +00:00
Glenn L McGrath
d7fe39b587 Really fix the 'r' command 2003-04-09 15:52:32 +00:00
Glenn L McGrath
d87a7ac269 Fix the sed 'r' command 2003-04-09 15:26:14 +00:00
Glenn L McGrath
2410386611 fix substitution when replacing with &, we shouldnt check for an escape charcter. Its already been taken care of _somewhere_ else 2003-04-09 07:51:43 +00:00
Glenn L McGrath
bd9b32bc0d Label ends at a newline, update comments, rename linked list field 2003-04-09 01:43:54 +00:00
Glenn L McGrath
8d6395d41a Run through indent 2003-04-08 11:56:11 +00:00
Glenn L McGrath
c1d95076f0 Fixes block commands to correctly identify end of block, recognise the #n directive, fix substitue command when regex isnt specified 2003-04-08 06:42:45 +00:00
Glenn L McGrath
7ce9e247f0 Add hold space commands 'g', 'h', 'x' 2003-04-07 16:04:14 +00:00
Glenn L McGrath
c6adada158 Rename "line" to pattern_space to be more descriptive and closer to the POSIX description 2003-04-07 12:24:44 +00:00