T35: review round 2: a program's link inside a prompt keeps its target and carries the prompt's number in its id, and a prompt that starts inside a link left open opens it again with the number, so a prompt all in links still starts on its first row; controls vte runs inside an escape go on before it, so only the ESC waits and a long run of them keeps the pty reading

src/term/pty.rs

@@ -338,6 +338,15 @@ mod tests {
         assert_eq!(ran.prompt, [0], "the prompt's cell, not the output's");
     }
 
+    #[test]
+    fn a_long_escape_of_controls_keeps_the_pty_reading() {
+        let ran = run(
+            "printf '\\033'; head -c 3000000 /dev/zero; printf '[0mREADY'",
+            (40, 4),
+        );
+        assert_eq!(ran.text, "READY");
+    }
+
     #[test]
     fn the_foreground_is_the_program_s_own_group() {
         let launch = Launch {