commit https://github.com/vim/vim/commit/910b8aac5dc4693c4508b7acd2cef0bbfac04242 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Feb 16 21:03:07 2016 +0100 patch 7.4.1341 Problem: It's difficult to add more arguments to ch_sendraw() and ch_sendexpr(). Solution: Make the third option a dictionary.

Test for search('multi-byte char', 'bce')

STARTTEST
:source small.vim
:source mbyte.vim
:set encoding=utf-8
:/^Test bce:/+1
:$put =search('Ａ', 'bce', line('.'))
:1;/^Results:/,$wq! test.out
ENDTEST

Results:

Test bce:
Ａ