patch 8.1.1558: popup_menu() and popup_filter_menu() are not implemented yet commit https://github.com/vim/vim/commit/a730e55cc2d3045a79a340a5af1ad4a749058a32 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jun 16 19:05:31 2019 +0200 patch 8.1.1558: popup_menu() and popup_filter_menu() are not implemented yet Problem: Popup_menu() and popup_filter_menu() are not implemented yet. Solution: Implement the functions. Fix that centering didn't take the border and padding into account.

/* json.c */
char_u *json_encode(typval_T *val, int options);
char_u *json_encode_nr_expr(int nr, typval_T *val, int options);
int json_decode_all(js_read_T *reader, typval_T *res, int options);
int json_decode(js_read_T *reader, typval_T *res, int options);
int json_find_end(js_read_T *reader, int options);
/* vim: set ft=c : */