diff options
| -rw-r--r-- | editors/sed.c | 19 | ||||
| -rwxr-xr-x | testsuite/sed.tests | 6 |
2 files changed, 11 insertions, 14 deletions
diff --git a/editors/sed.c b/editors/sed.c index c0d79cc..b7add1f 100644 --- a/editors/sed.c +++ b/editors/sed.c @@ -1300,16 +1300,17 @@ static void process_files(void) case 'n': if (!G.be_quiet) sed_puts(pattern_space, last_gets_char); - if (next_line) { - free(pattern_space); - pattern_space = next_line; - last_gets_char = next_gets_char; - next_line = get_next_line(&next_gets_char, &last_puts_char); - substituted = 0; - linenum++; - break; + if (next_line == NULL) { + /* If no next line, jump to end of script and exit. */ + goto discard_line; } - /* fall through */ + free(pattern_space); + pattern_space = next_line; + last_gets_char = next_gets_char; + next_line = get_next_line(&next_gets_char, &last_puts_char); + substituted = 0; + linenum++; + break; /* Quit. End of script, end of input. */ case 'q': diff --git a/testsuite/sed.tests b/testsuite/sed.tests index a71f8b1..05c00a9 100755 --- a/testsuite/sed.tests +++ b/testsuite/sed.tests @@ -73,13 +73,9 @@ testing "sed t (test/branch clears test bit)" "sed -e 's/a/b/;:loop;t loop'" \ testing "sed T (!test/branch)" "sed -e 's/a/1/;T notone;p;: notone;p'" \ "1\n1\n1\nb\nb\nc\nc\n" "" "a\nb\nc\n" -test x"$SKIP_KNOWN_BUGS" = x"" && { -# Normal sed end-of-script doesn't print "c" because n flushed the pattern -# space. If n hits EOF, pattern space is empty when script ends. -# Query: how does this interact with no newline at EOF? testing "sed n (flushes pattern space, terminates early)" "sed -e 'n;p'" \ "a\nb\nb\nc\n" "" "a\nb\nc\n" -} + # non-GNU sed: N does _not_ flush pattern space, therefore c is eaten @ script end # GNU sed: N flushes pattern space, therefore c is printed too @ script end testing "sed N (flushes pattern space (GNU behavior))" "sed -e 'N;p'" \ |