patch 8.2.4978: no error if engine selection atom is not at the start Commit: https://github.com/vim/vim/commit/360da40b47a84ee8586c3b5d062f8c64a2ac9cc6 Author: Christian Brabandt <cb@256bit.org> Date: Wed May 18 15:04:02 2022 +0100 patch 8.2.4978: no error if engine selection atom is not at the start Problem: No error if engine selection atom is not at the start. Solution: Give an error. (Christian Brabandt, closes https://github.com/vim/vim/issues/10439)

--- a/src/errors.h
+++ b/src/errors.h
@@ -3277,3 +3277,5 @@ EXTERN char e_missing_close_curly_str[]
 EXTERN char e_illegal_character_in_word[]
 	INIT(= N_("E1280: Illegal character in word"));
 #endif
+EXTERN char e_atom_engine_must_be_at_start_of_pattern[]
+	INIT(= N_("E1281: Atom '\\%%#=%c' must be at the start of the pattern"));