seq: fix yet another case of negative parameters not working

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

1 files changed, 6 insertions, 2 deletions

diff --git a/coreutils/seq.c b/coreutils/seq.c
index c0e2d1e06..77a8aba8a 100644
--- a/coreutils/seq.c
+++ b/coreutils/seq.c
@@ -57,8 +57,12 @@ int seq_main(int argc, char **argv)
                 saved = argv[++n];
                 if (!saved)
                         break;
-                if (saved[0] != '-')
-                        break;
+                if (saved[0] != '-') {
+                        // break; // "seq -s : -1 1" won't be treated correctly
+                        continue;
+                }
+// "seq -s -1 1 9" is not treated correctly, but such usage
+// (delimiter string which looks like negative number) is very unlikely
                 c = saved[1];
                 if (c == '.' || (c >= '0' && c <= '9')) {
                         argv[n] = NULL;