scanner: allow empty key name literals

Some keymaps actually have this, like the quartz.xkb which is tested. We
need to support these.

https://bugs.freedesktop.org/show_bug.cgi?id=67654

Reported-By: Gatis Paeglis <gatis.paeglis@digia.com>
Signed-off-by: Ran Benita <ran234@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/text.c b/src/text.c
index 443fa1c..59d6c77 100644
--- a/src/text.c
+++ b/src/text.c
@@ -251,9 +251,9 @@ const char *
 KeyNameText(struct xkb_context *ctx, xkb_atom_t name)
 {
     const char *sname = xkb_atom_text(ctx, name);
-    size_t len = strlen(sname) + 3;
+    size_t len = strlen_safe(sname) + 3;
     char *buf = xkb_context_get_buffer(ctx, len);
-    snprintf(buf, len, "<%s>", sname);
+    snprintf(buf, len, "<%s>", strempty(sname));
     return buf;
 }