patch 8.2.2694: when 'matchpairs' is empty every character beeps Commit: https://github.com/vim/vim/commit/5b8cabfef7c3707f3e53e13844d90e5a217e1e84 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Apr 2 18:55:57 2021 +0200 patch 8.2.2694: when 'matchpairs' is empty every character beeps Problem: When 'matchpairs' is empty every character beeps. (Marco Hinz) Solution: Bail out when no character in 'matchpairs' was found. (closes #8053) Add assert_nobeep().

/* if_ole.cpp */
void InitOLE(int* pbDoRestart);
void UninitOLE(void);
void RegisterMe(int silent);
void UnregisterMe(int bNotifyUser);