major Curses UI revision: initialize curses as late as possible

 * relies on a patched version of Scinterm that allows you to
   construct Scintilla objects, send messages etc. before Curses
   is initialized.
   The Scintilla and Scinterm submodules have been updated.
 * This once and for all fixes batch mode and stdio redirections
   in batch mode on all Curses platforms and operating systems.
 * Fixes the ^C-does-not-interrupt bug on ncurses/UNIX.
   See #4.
 * On ncurses/UNIX we will still do a newterm()-initialization.
   This allows us to keep stdout/stderr alone in case they are
   redirected. This effectively allows redirecting SciTECO's
   output into a file even in interactive mode.
   ncurses/UNIX now behaves like, e.g. PDCurses/win32a and GTK+
   in this regard.
 * Curses environment variable handling fixed.
   The environment registers are exported into the process environment
   so that Curses environment variables can be set/modified by the
   SciTECO profile.
 * Use term.h for accessing terminfo now.
   Explained set_window_title() limitations.
 * fixed interruption via SIGINT. If the UI is waiting for user
   input, SIGINT is effectively ignored instead of letting the
   next character fail always.
 * Updated sciteco(1) and sciteco(7): More options, environment variables
   and signals documented. Also rewritten DESCRIPTION section
   (different modes of operation).

1 files changed, 7 insertions, 4 deletions

diff --git a/src/interface-curses.h b/src/interface-curses.h
index 971d2fa..471b462 100644
--- a/src/interface-curses.h
+++ b/src/interface-curses.h
@@ -44,8 +44,8 @@ public:
 	{
 		/*
 		 * NOTE: This deletes/frees the view's
-		 * curses WINDOW, despite of what Scinterm's
-		 * documentation says.
+		 * curses WINDOW, despite of what old versions
+		 * of the Scinterm documentation claim.
 		 */
 		if (sci)
 			scintilla_delete(sci);
@@ -72,6 +72,7 @@ public:
 } ViewCurrent;
 
 typedef class InterfaceCurses : public Interface<InterfaceCurses, ViewCurses> {
+	int stdout_orig, stderr_orig;
 	SCREEN *screen;
 	FILE *screen_tty;
 
@@ -100,7 +101,8 @@ typedef class InterfaceCurses : public Interface<InterfaceCurses, ViewCurses> {
 	} popup;
 
 public:
-	InterfaceCurses() : screen(NULL),
+	InterfaceCurses() : stdout_orig(-1), stderr_orig(-1),
+	                    screen(NULL),
 			    screen_tty(NULL),
 			    info_window(NULL),
 			    info_current(NULL),
@@ -146,8 +148,9 @@ public:
 	void event_loop_impl(void);
 
 private:
-	void init_batch(void);
+	void init_screen(void);
 	void init_interactive(void);
+	void restore_batch(void);
 
 	void resize_all_windows(void);