vis: add `:set escdelay nn` option

Make the delay used to distinguish between an <Escape> key and
other terminal escape sequences such as for the Meta key run
time configurable. The value is given in miliseconds and defaults
to 50ms.

Notice that terminal multiplexers like dvtm or tmux might also
induce some delay which has to be configured independently.

1 files changed, 6 insertions, 0 deletions

diff --git a/vis-cmds.c b/vis-cmds.c
index a266bb4..7218676 100644
--- a/vis-cmds.c
+++ b/vis-cmds.c
@@ -140,6 +140,12 @@ static bool cmd_set(Vis *vis, Win *win, Command *cmd, const char *argv[], Cursor
 		vis->shell = shell;
 		break;
 	}
+	case OPTION_ESCDELAY:
+	{
+		TermKey *termkey = vis->ui->termkey_get(vis->ui);
+		termkey_set_waittime(termkey, arg.i);
+		break;
+	}
 	case OPTION_EXPANDTAB:
 		vis->expandtab = arg.b;
 		break;