patch 8.0.0996: Mac: t_RS is echoed on the screne in Terminal.app commit https://github.com/vim/vim/commit/833e0e3c8ccd6047dd596c4ffd68cb0ab13b4e41 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Aug 26 15:16:03 2017 +0200 patch 8.0.0996: Mac: t_RS is echoed on the screne in Terminal.app Problem: Mac: t_RS is echoed on the screne in Terminal.app. Even though $TERM is set to "xterm-256colors" it cannot handle this xterm escape sequence. Solution: Recognize Terminal.app from the termresponse and skip sending t_RS if it looks like Terminal.app.

/*
 * An extremely simple program to make the cursor blink in an xterm.
 * This is useful when the cursor is hard to spot in a highlighted file.
 * Start in the background: "blink&"  Stop by killing it.
 * Bram Moolenaar  980109  (based on an idea from John Lange).
 */

#include <stdio.h>
#include <unistd.h>

	int
main(void)
{
	while (1)
	{
		printf("\e[?25h");
		fflush(stdout);
		usleep(400000);		/* on time */
		printf("\e[?25l");
		fflush(stdout);
		usleep(250000);		/* off time */
	}
	return 0;
}