- tables no longer try to fill the available space in the variables area

- added string-valued expressions (on-going)
- loops, tables, and rows can now be deleted/undeleted (still need columns)



git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5397 99fdad57-331a-0410-800a-d7fa5415bdb3

expr.c

@@ -101,6 +101,13 @@ int to_unit(struct num *n)
 /* ----- primary expressions ----------------------------------------------- */
 
 
+struct num op_string(const struct expr *self, const struct frame *frame)
+{
+	fail("cannot evaluate string");
+	return undef;
+}
+
+
 struct num op_num(const struct expr *self, const struct frame *frame)
 {
 	return self->u.num;