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-rw-r--r--mail/unread.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/mail/unread.c b/mail/unread.c
new file mode 100644
index 000000000..2787cb8a8
--- /dev/null
+++ b/mail/unread.c
@@ -0,0 +1,36 @@
+/* GNU Mailutils -- a suite of utilities for electronic mail
+ Copyright (C) 1999-2021 Free Software Foundation, Inc.
+
+ GNU Mailutils is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ GNU Mailutils is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GNU Mailutils. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "mail.h"
+
+static int
+unread0 (msgset_t *mspec, mu_message_t msg, void *data)
+{
+ mu_attribute_t attr;
+
+ mu_message_get_attribute (msg, &attr);
+ mu_attribute_unset_read (attr);
+ mu_attribute_unset_userflag (attr, MAIL_ATTRIBUTE_SHOWN);
+ cond_page_invalidate (msgset_msgno (mspec));
+
+ return 0;
+}
+
+int
+mail_unread (int argc, char **argv)
+{
+ return util_foreach_msg (argc, argv, MSG_ALL, unread0, NULL);
+}

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