grep: option to use GNU regex matching instead of POSIX one.

 This fixes problems with NULs in files being scanned, but
 costs +800 bytes. The same can be done to sed (TODO).

1 files changed, 2 insertions, 6 deletions

diff --git a/testsuite/grep.tests b/testsuite/grep.tests
index b2de2af54..8cee1b9ee 100755
--- a/testsuite/grep.tests
+++ b/testsuite/grep.tests
@@ -62,12 +62,8 @@ testing "grep -s nofile - (stdin and nonexisting file, match)" \
         "grep -s domatch nonexistent - ; echo \$?" \
         "(standard input):domatch\n2\n" "" "nomatch\ndomatch\nend\n"
 
-# This doesn't match GNU behaviour (Binary file input matches)
-# acts like GNU grep -a
-testing "grep handles binary files" "grep foo input" "foo\n" "\0foo\n\n" ""
-# This doesn't match GNU behaviour (Binary file (standard input) matches)
-# acts like GNU grep -a
-testing "grep handles binary stdin" "grep foo" "foo\n" "" "\0foo\n\n"
+testing "grep handles NUL in files" "grep -a foo input" "\0foo\n" "\0foo\n\n" ""
+testing "grep handles NUL on stdin" "grep -a foo" "\0foo\n" "" "\0foo\n\n"
 
 testing "grep matches NUL" "grep . input > /dev/null 2>&1 ; echo \$?" \
         "0\n" "\0\n" ""