Readline: Get a new prompt on SIGINT

Question

I\'ve got code similar to the following, using readline:

#include 
#include 
#include 
#include          


        

Answer 1

Creating a jump seems hacky and error-prone to me. The shell implementation I was adding this support to didn't allow for this change.

Luckily, readlinehas a clearer, alternative solution. My SIGINT handler looks like this:

static void
int_handler(int status) {
    printf("\n"); // Move to a new line
    rl_on_new_line(); // Regenerate the prompt on a newline
    rl_replace_line("", 0); // Clear the previous text
    rl_redisplay();
}

This took no other additional code elsewhere to get this working — no global variables, no setting jumps.