Cut and renumber fixes

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@400 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -1,8 +1,16 @@
 CVS code -
+- cut.c:
+  do_uncut_text()
+	- Fix renumbering bug when uncutting marked test at filebot.
+	- Fix screen not being displayed when we are uncutting marked
+	  text at editbot (Bug discovered by Ken Tyler).
 - files.c:
   write_file()
 	- Change open call flags, basically copy joe's way of doing it so
 	  a more recent version will actually be included in (un)stable.
+- nano.c:
+  renumber()
+	- Dont stupidly assign the value of prev->lineno if prev == NULL!
 
 nano 0.9.23 - 12/08/2000
 General

cut.c

@@ -271,7 +271,7 @@ int do_cut_text(void)
 
 int do_uncut_text(void)
 {
-    filestruct *tmp = current, *fileptr = current, *newbuf, *newend;
+    filestruct *tmp = current, *hold = current, *fileptr = current, *newbuf, *newend;
 #ifndef NANO_SMALL
     char *tmpstr, *tmpstr2;
 #endif
@@ -339,8 +339,12 @@ int do_uncut_text(void)
 
 	    if (tmp != NULL)
 		tmp->prev = newend;
-	    else
+	    else {
+		/* Fix the editbot pointer too */
+		if (editbot == filebot)
+		    editbot = newend;
 		filebot = newend;
+	    }
 
 	    /* Now why don't we update the totsize also */
 	    for (tmp = current->next; tmp != newend; tmp = tmp->next)
@@ -368,7 +372,9 @@ int do_uncut_text(void)
 	    current_x = 0;
 	    placewewant = 0;
 	}
-	renumber(current->prev);
+	/* Renumber from BEFORE where we pasted ;) */
+	renumber(hold);
+
 	dump_buffer(fileage);
 	dump_buffer(cutbuffer);
 	set_modified();

nano.c

@@ -315,7 +315,10 @@ int renumber(filestruct * fileptr)
 	return 0;
     }
     for (temp = fileptr; temp != NULL; temp = temp->next) {
-	temp->lineno = temp->prev->lineno + 1;
+	if (temp->prev != NULL)
+	    temp->lineno = temp->prev->lineno + 1;
+	else
+	    temp->lineno = 1;
     }
 
     return 0;