Previously, it printed lines that didn't match some pattern. Instead,
it should print lines that don't match *any* pattern.
Test case:
out=$(echo foo | ./grep -v -e foo -e bar)
if [ "$?" = 1 ] && [ -z "$out" ] ; then
echo pass
else
echo fail
fi
This provides a reliable and portable way to
test whether an environment variable is defined.
(Of course, if you are using glibc you may get
false positives if you include a = in the query.)
Signed-off-by: Mattias Andrée <maandree@kth.se>
reproduce: touch -t 12345678 mytralala
would only give a warning and use uninitialised time values. The proper
way is to treat it as an error. Clear the "struct tm" and kill some lines
just in case.
In eb9bda8787, a bug was introduced in the
handling of -1 return values from getline. Since the type of the len
field in struct line is unsigned, the break condition was never true.
This caused sort -c to never succeed.
A bug was introduced in the NUL support refactor leading to
the length of the previous line only being saved if the
previous line was shorter than the current line. If triggered
this lead to copying too much data into the previous line buffer.
Behavior before:
printf '1234\na\n' | ./uniq
1234
a
4
Behavior after:
printf '1234\na\n' | ./uniq
1234
a
because we can't call the syslog-syscall without becoming unportable.
The syslog() libc-function does not accept a length though, so we're
fucked. Anyway, let's carry on.
Thing is, we don't yet have an updated utflen() ready for use. Although
prints the lines completely, it does not add a proper spacing between
each entry. This will be fixed later.
For sort(1) we need memmem(), which I imported from OpenBSD.
Inside sort(1), the changes involved working with the explicit lengths
given by getlines() earlier and rewriting some of the functions.
Now we can handle NUL-characters in the input just fine.
Forgot that in case there is a second argument given with -s you
probably want to have your characters substituted.
I changed it so that shortly before "deploying" we check if the
"to be written"-Rune is equal to the last Rune, and proceed as
needed.
