Allow configuring which event throw-on-input should ignore (bug#19547).

* src/keyboard.c (kbd_buffer_store_buffered_event):
Translate event to corresponding symbol from `while-no-input-ignore-events`
and check them with Fmemq.
(syms_of_keyboard): Declare new lisp variable `while-no-input-ignore-events`
and its symbols.

* lisp/subr.el (while-no-input-ignore-events): Add default values.

* doc/lispref/commands.texi (Event Input Misc):
Document while-no-input-ignore-events.
* etc/NEWS: Same.

1 files changed, 6 insertions, 0 deletions

diff --git a/doc/lispref/commands.texi b/doc/lispref/commands.texi
index 46756d0ddd6..c4de5299ce9 100644
--- a/doc/lispref/commands.texi
+++ b/doc/lispref/commands.texi
@@ -2917,6 +2917,12 @@ like this:
 @end example
 @end defmac
 
+@defvar while-no-input-ignore-events
+This variable allow setting which special events @code{while-no-input}
+should ignore.  It is a list of symbols.
+
+@end defvar
+
 @defun discard-input
 @cindex flushing input
 @cindex discarding input