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-rw-r--r--notmuch-tag.c11
-rwxr-xr-xtest/tagging4
2 files changed, 15 insertions, 0 deletions
diff --git a/notmuch-tag.c b/notmuch-tag.c
index 7d186399..d15f1eda 100644
--- a/notmuch-tag.c
+++ b/notmuch-tag.c
@@ -203,6 +203,17 @@ notmuch_tag_command (void *ctx, int argc, char *argv[])
break;
}
if (argv[i][0] == '+' || argv[i][0] == '-') {
+ if (argv[i][0] == '+' && argv[i][1] == '\0') {
+ fprintf(stderr, "Error: tag names cannot be empty.\n");
+ return 1;
+ }
+ if (argv[i][0] == '+' && argv[i][1] == '-') {
+ /* This disallows adding the non-removable tag "-" and
+ * enables notmuch tag to take long options in the
+ * future. */
+ fprintf(stderr, "Error: tag names must not start with '-'.\n");
+ return 1;
+ }
tag_ops[tag_ops_count].tag = argv[i] + 1;
tag_ops[tag_ops_count].remove = (argv[i][0] == '-');
tag_ops_count++;
diff --git a/test/tagging b/test/tagging
index e4782ed4..980ff927 100755
--- a/test/tagging
+++ b/test/tagging
@@ -46,4 +46,8 @@ test_expect_equal "$output" "\
thread:XXX 2001-01-05 [1/1] Notmuch Test Suite; One (:\" inbox tag1 unread)
thread:XXX 2001-01-05 [1/1] Notmuch Test Suite; Two (inbox tag1 tag4 unread)"
+test_expect_code 1 "Empty tag names" 'notmuch tag + One'
+
+test_expect_code 1 "Tag name beginning with -" 'notmuch tag +- One'
+
test_done