Savannah bug 23751: Segfault when viewing help using Japanese locale

Fix break_line crashing when using certain locales from Mitsuya Shibata



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4272 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

+2008-07-11 Mitsuya Shibata <mty.shibata@gmail.com>
+	* text.c: Fix crashing in help menu when using certain locales
+
 2008-07-09 Chris Allegretta <chrisa@asty.org>
         * nano.c/nano.h/global.c/text.c: New generalized undo code, currently
 	  just works for adding and deleting text and splitting and unsplitting lines.

src/text.c

@@ -1127,6 +1127,15 @@ ssize_t break_line(const char *line, ssize_t goal
 	/* In fact, the whole line displays shorter than goal. */
 	return cur_loc;
 
+#ifndef DISABLE_HELP
+    if (newln && blank_loc <= 0) {
+       /* If blank was not found or was found only first character,
+        * force line break. */
+       cur_loc -= line_len;
+       return cur_loc;
+    }
+#endif
+
     if (blank_loc == -1) {
 	/* No blank was found that was short enough. */
 	bool found_blank = FALSE;