vis: defer UI initialization and overhaul argument parsing

Do not initalize curses UI before it is actually needed.
Move vis command line argument parsing logic into main.c.
This fixes `vis -v` output and exit status.

Fix #351

1 files changed, 1 insertions, 0 deletions

diff --git a/vis-core.h b/vis-core.h
index 5dc2a64..6d5d022 100644
--- a/vis-core.h
+++ b/vis-core.h
@@ -172,6 +172,7 @@ struct Vis {
 	Action action_prev;                  /* last operator action used by the repeat (dot) command */
 	Mode *mode;                          /* currently active mode, used to search for keybindings */
 	Mode *mode_prev;                     /* previsouly active user mode */
+	bool initialized;                    /* whether UI and Lua integration has been initialized */
 	volatile bool running;               /* exit main loop once this becomes false */
 	int exit_status;                     /* exit status when terminating main loop */
 	volatile sig_atomic_t cancel_filter; /* abort external command/filter (SIGINT occured) */