Yukihiro Nakadaira wrote:
> getchar() in map-<expr> break internal state.
>
> Steps to reproduce:
> $ gvim -u NONE (I tested on Windows)
> :nnoremap <expr> x getchar()
>
> Then, type "x" and "<C-Space>" (any key with modifier)
>
> Now, all mappings does not work.
>
> In the vgetc(), no_mapping and allow_keys are restored wrongly.
>
> getchar.c:vgetc()
> 1633 if (mod_mask) /* no mapping after modifier has been
> read */
> 1634 {
> 1635 ++no_mapping;
> 1636 ++allow_keys;
> 1637 }
> 1638 c = vgetorpeek(TRUE); <- getchar() in map <expr> change
> mod_mask
> 1639 if (mod_mask)
> 1640 {
> 1641 --no_mapping;
> 1642 --allow_keys;
> 1643 }
>
> Please check the following patch.
Thanks!
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