patch 9.0.0598: using negative array index with negative width window Commit: https://github.com/vim/vim/commit/8279af514ca7e5fd3c31cf13b0864163d1a0bfeb Author: Bram Moolenaar <Bram@vim.org> Date: Mon Sep 26 23:08:22 2022 +0100 patch 9.0.0598: using negative array index with negative width window Problem: Using negative array index with negative width window. Solution: Make sure the window width does not become negative.

/* 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);