patch 9.0.1828: cursor wrong with virt text before double-width char Commit: https://github.com/vim/vim/commit/ac2d8815ae7a93c54b07cba76475cfb3f26a3ac6 Author: zeertzjq <zeertzjq@outlook.com> Date: Thu Aug 31 18:07:30 2023 +0200 patch 9.0.1828: cursor wrong with virt text before double-width char Problem: Wrong cursor position with virtual text before double-width char at window edge. Solution: Check for double-width char before adding virtual text size. closes: #12977 Signed-off-by: Christian Brabandt <cb@256bit.org> Co-authored-by: zeertzjq <zeertzjq@outlook.com>

/* if_mzsch.c */
int mzscheme_enabled(int verbose);
void mzvim_check_threads(void);
char *did_set_mzquantum(optset_T *args);
void mzscheme_end(void);
int mzscheme_main(void);
void mzscheme_buffer_free(buf_T *buf);
void mzscheme_window_free(win_T *win);
void ex_mzscheme(exarg_T *eap);
void ex_mzfile(exarg_T *eap);
void do_mzeval(char_u *str, typval_T *rettv);
void raise_vim_exn(const char *add_info);
void raise_if_error(void);
buf_T *get_valid_buffer(void *obj);
win_T *get_valid_window(void *obj);
int mzthreads_allowed(void);
/* vim: set ft=c : */