use raw mode in get_verbatim_kbinput(), so that we don't have to deal

with interrupt-generating keys there


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@1638 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -14,6 +14,10 @@ CVS code -
 	- New function used to write the current marked selection to a
 	  file, split out from do_writeout(). (DLR)
 - nano.c:
+  do_verbatim_input()
+	- Remove the now-unneeded code to disable XON, XOFF, and
+	  suspend, since we now go into raw mode in
+	  get_verbatim_kbinput() and bypass them. (DLR)
   do_spell(), do_int_speller(), do_alt_speller()
 	- Modify to write only the current selection from a file to the
 	  temporary file used for spell checking when the mark is on,
@@ -26,7 +30,9 @@ CVS code -
   main()
 	- Move the call to raw() on systems that don't define
 	  _POSIX_VDISABLE outside the main input/output loop, as it
-	  doesn't need to be called every time through the loop. (DLR)
+	  doesn't need to be called every time through the loop.  Call it
+	  instead of cbreak() on such systems, as it overrides cbreak()
+	  anyway. (DLR)
 - search.c:
   do_replace_loop()
 	- Fix segfault when doing a regex replace of a string that
@@ -34,12 +40,16 @@ CVS code -
 	  anything). (David Benbennick)
 - winio.c:
   get_verbatim_kbinput()
-	- Set keypad() to FALSE while reading input, and set it back to
-	  TRUE afterwards.  This ensures that we don't end up reading in
-	  extended keypad values that are outside the ASCII range.
-	  (Also, with keypad() set to TRUE, xterm generates
+	- Set keypad() to FALSE and switch to raw mode while reading
+	  input, and set it keypad() back to TRUE and go back into
+	  cbreak mode afterwards.  (Note that if _POSIX_VDISABLE isn't
+	  defined, we don't need to change to or from raw mode since
+	  we're already in it exclusively.)  This ensures that we don't
+	  end up reading in extended keypad values that are outside the
+	  ASCII range or having to deal with interrupt-generating key
+	  values.  Also, with keypad() set to TRUE, xterm generates
 	  KEY_BACKSPACE when the user hits Ctrl-H, which, when cut down
-	  to ASCII range, ends up being Ctrl-G, which can be confusing.)
+	  to ASCII range, ends up being Ctrl-G, which can be confusing.
 	  (DLR)
   get_accepted_kbinput()
 	- Don't use "kbinput = wgetch(win)" as a switch value. (DLR)

src/nano.c

@@ -1003,19 +1003,8 @@ int do_verbatim_input(void)
 {
     char *verbatim_kbinput;	/* Used to hold verbatim input */
     int verbatim_len;		/* Length of verbatim input */
-    int old_preserve = ISSET(PRESERVE), old_suspend = ISSET(SUSPEND);
     int i;
 
-    /* Turn off Ctrl-Q (XON), Ctrl-S (XOFF), and Ctrl-Z (suspend) if
-     * they're on, so that we can use them to insert ^Q, ^S, and ^Z
-     * verbatim. */
-    if (old_preserve)
-	UNSET(PRESERVE);
-    if (old_suspend)
-	UNSET(SUSPEND);
-    if (old_preserve || old_suspend)
-	signal_init();
-
     statusbar(_("Verbatim input"));
     verbatim_kbinput = get_verbatim_kbinput(edit, &verbatim_len, 1);
 
@@ -1029,15 +1018,6 @@ int do_verbatim_input(void)
 
     free(verbatim_kbinput);
 
-    /* Turn Ctrl-Q, Ctrl-S, and Ctrl-Z back on if they were on
-     * before. */
-    if (old_preserve)
-	SET(PRESERVE);
-    if (old_suspend)
-	SET(SUSPEND);
-    if (old_preserve || old_suspend)
-	signal_init();
-
     return 1;
 }
 
@@ -3447,13 +3427,13 @@ int main(int argc, char *argv[])
     initscr();
     savetty();
     nonl();
-    cbreak();
-    noecho();
-
 #ifndef _POSIX_VDISABLE
     /* We're going to have to do it the old way, i.e, on Cygwin. */
     raw();
+#else
+    cbreak();
 #endif
+    noecho();
 
     /* Set up some global variables */
     global_init(0);

src/winio.c

@@ -61,8 +61,12 @@ char *get_verbatim_kbinput(WINDOW *win, int *kbinput_len,
     int kbinput;
 
     /* Turn the keypad off so that we don't get extended keypad values,
-     * all of which are outside the ASCII range. */
+     * all of which are outside the ASCII range, and switch to raw mode
+     * so that we can type ^Q, ^S, and ^Z without getting interrupts. */
     keypad(win, FALSE);
+#ifndef _POSIX_VDISABLE
+    raw();
+#endif
 
     kbinput = wgetch(win);
     verbatim_kbinput = charalloc(1);
@@ -84,8 +88,12 @@ char *get_verbatim_kbinput(WINDOW *win, int *kbinput_len,
 	nodelay(win, FALSE);
     }
 
-    /* Turn the keypad back on now that we're done. */
+    /* Turn the keypad back on and switch back to cbreak mode now that
+     * we're done. */
     keypad(win, TRUE);
+#ifndef _POSIX_VDISABLE
+    cbreak();
+#endif
 
 #ifdef DEBUG
     fprintf(stderr, "get_verbatim_kbinput(): verbatim_kbinput = %s\n", verbatim_kbinput);