patch 8.2.1595: cannot easily see what Vim sends to the terminal Commit: https://github.com/vim/vim/commit/86394aa9720c5e087d85831e42d44e042987fbc0 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Sep 5 14:27:24 2020 +0200 patch 8.2.1595: cannot easily see what Vim sends to the terminal Problem: Cannot easily see what Vim sends to the terminal. Solution: Write output to the channel log if it contains terminal control sequences. Avoid warnings for tputs() argument.

--- a/src/globals.h
+++ b/src/globals.h
@@ -1898,6 +1898,10 @@ EXTERN int did_repeated_msg INIT(= 0);
 # define REPEATED_MSG_LOOKING	    1
 # define REPEATED_MSG_SAFESTATE	    2
 
+// This flag is set when outputting a terminal control code and reset in
+// out_flush() when characters have been written.
+EXTERN int ch_log_output INIT(= FALSE);
+
 #define FOR_ALL_CHANNELS(ch) \
     for ((ch) = first_channel; (ch) != NULL; (ch) = (ch)->ch_next)
 #define FOR_ALL_JOBS(job) \