patch 8.1.1512: ch_evalexpr() hangs when used recursively commit https://github.com/vim/vim/commit/38ea784fecf7921dca83ddc75fe9cb40708521b2 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jun 9 19:51:58 2019 +0200 patch 8.1.1512: ch_evalexpr() hangs when used recursively Problem: ch_evalexpr() hangs when used recursively. (Paul Jolly) Solution: Change ch_block_id from a single number to a list of IDs to wait on.

/* if_tcl.c */
void vim_tcl_init(char *arg);
int tcl_enabled(int verbose);
void tcl_end(void);
void ex_tcl(exarg_T *eap);
void ex_tclfile(exarg_T *eap);
void ex_tcldo(exarg_T *eap);
void tcl_buffer_free(buf_T *buf);
void tcl_window_free(win_T *win);
/* vim: set ft=c : */