Make this clause function and call it afterward.

Signed-off-by: Takeshi Banse <takebi@laafc.net>

zsh-syntax-highlighting.zsh

@@ -214,8 +214,9 @@ _zsh_highlight-zle-buffer() {
 # reason).  You can see the default setup using "zle -l -L".
 
 # Bind all ZLE events from zle -la to highlighting function.
-local clean_event
-for event in $(zle -la); do
+_zsh_highlight-install() {
+  local clean_event
+  for event in "$@"; do
     case $event in
       _*|orig-*|.run-help|.which-command)
         ;;
@@ -232,4 +233,6 @@ for event in $(zle -la); do
       *)
         ;;
     esac
-done
+  done
+}
+_zsh_highlight-install "${(@f)"$(zle -la)"}"