updated for version 7.3.196
Problem:    Can't intercept a character that is going to be inserted.
Solution:   Add the InsertCharPre autocommand event. (Jakson A. Aquino)
diff --git a/src/fileio.c b/src/fileio.c
index b4fbdfb..6355c79 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -7662,6 +7662,7 @@
     {"InsertChange",	EVENT_INSERTCHANGE},
     {"InsertEnter",	EVENT_INSERTENTER},
     {"InsertLeave",	EVENT_INSERTLEAVE},
+    {"InsertCharPre",	EVENT_INSERTCHARPRE},
     {"MenuPopup",	EVENT_MENUPOPUP},
     {"QuickFixCmdPost",	EVENT_QUICKFIXCMDPOST},
     {"QuickFixCmdPre",	EVENT_QUICKFIXCMDPRE},