exit 64 # EX_USAGE
fi
-vim -e -c'echo version' -cdigraphs -cq | perl -CSD -nE '
+VIM='vim -RXZ -i NONE -u NONE -N -n'
+
+$VIM -e -c'echo version' -cdigraphs -cq | perl -CSD -nE '
if ($. == 1) { # head
say "# digraphs list from vim version ", m/(\d+)\s*\z/;
+ say "# automatically generated by '"$0"'";
say "+{";
} else { # body
while (/\G(\S\S) (.[^ ]*) +([0-9]+)\s+/g) {