8 Aug
2000
8 Aug
'00
7:47 a.m.
Michel Pelletier has reminded me that we need a security check by containment at each point in the search through context. So, in my example, the search will look like this: / |-A a | |-B b | |-X x | |-P p1 | |-Y y | |-P p0 Context-first Acquisition (P of (B of (A of (Y of (X of /))) Security p0 / b a / a b y x / x / / Checks That makes for a lot of security checks. There are possible optimisations, though. But this starts to get even more complicated. -- Steve Alexander Software Engineer Cat-Box limited http://www.cat-box.net