patch 8.0.0271: may get ml_get error when :tcldo deletes lines commit https://github.com/vim/vim/commit/a4c906a4a111cbe59cf5f1e8354a36ba83e0a444 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jan 29 23:26:37 2017 +0100 patch 8.0.0271: may get ml_get error when :tcldo deletes lines Problem: May get ml_get error when :tcldo deletes lines or switches to another buffer. (Nikolai Pavlov, closes https://github.com/vim/vim/issues/1421) Solution: Check the buffer and line every time.

/* auto/if_perl.c */
int perl_enabled(int verbose);
void perl_end(void);
void msg_split(char_u *s, int attr);
void perl_win_free(win_T *wp);
void perl_buf_free(buf_T *bp);
void ex_perl(exarg_T *eap);
void do_perleval(char_u *str, typval_T *rettv);
void ex_perldo(exarg_T *eap);