sed: support \r in s command

function                                             old     new   delta
copy_parsing_escapes                                  65      91     +26

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

2 files changed, 5 insertions, 1 deletions

diff --git a/editors/sed.c b/editors/sed.c
index 9e27e3e18..11c476321 100644
--- a/editors/sed.c
+++ b/editors/sed.c
@@ -218,8 +218,9 @@ static char *copy_parsing_escapes(const char *string, int len)
         char *dest = xmalloc(len + 1);
 
         parse_escapes(dest, string, len, 'n', '\n');
-        /* GNU sed also recognizes \t */
+        /* GNU sed also recognizes \t and \r */
         parse_escapes(dest, dest, strlen(dest), 't', '\t');
+        parse_escapes(dest, dest, strlen(dest), 'r', '\r');
         return dest;
 }
 
diff --git a/testsuite/sed.tests b/testsuite/sed.tests
index 395372ae6..e9d0ed601 100755
--- a/testsuite/sed.tests
+++ b/testsuite/sed.tests
@@ -287,6 +287,9 @@ testing "sed -i with address modifies all files, not only first" \
         "cp input input2; sed -i -e '1s/foo/bar/' input input2 && cat input input2; rm input2" \
         "bar\nbar\n" "foo\n" ""
 
+testing "sed understands \r" \
+        "sed 's/r/\r/'" \
+        "\rrr\n" "" "rrr\n"
 
 # testing "description" "arguments" "result" "infile" "stdin"