On 23/08/12 13:18, Mark Cave-Ayland wrote:
When I had a quick look at doing something earlier a
while back, I
noticed that OpenBIOS already has a concept of multiple dictionaries
with a search order (see dict-list?). My idea for an implementation was
to intercept docol to create a new dictionary at the top of the
function, add it to the head of the search list and then add the values
from the local variable declaration. This is pretty much what happens
when you "cd" to a particular path in the device tree.
Similarly you can then intercept dosemi from the search list to remove
the dictionary and clear up. The advantage of this approach is that you
can use all the in-built dictionary functions to manage your local
variable words, rather than your current approach which is to
re-implement this functionality yourself.
Actually after I little research, this isn't the right approach after
all - apparently the variables are stored on the return stack: