On Jun 11, 2011, at 2:23 PM, Geoff Canyon Rev wrote:
http://en.wikipedia.org/wiki/Memoization
I'm wondering if anyone has experimented with creating an automatic
memoization function within LC? Given that we can access argument
lists, and
have "do," it seems possible, but I'm betting commas in the
arguments would
be a pain. Something like this:
function m functionName
local callHistory,callHistoryValue
-- parse out addition arguments to m
-- concatenate functionName & arguments into functionCallString
if callHistory[functionCallString] is not empty then
return callHistoryValue[functionCallString]
end if
-- get the function result
put it into callHistoryValue[functionCallString]
put 1 into callHistory[functionCallString]
return it
end m
This 'do' function seems to work with commas in args,
but it may not be the point you are making
---- start working code
on testDoWithArgs
-- with commas in args
put quote into q
put "dog, cat, buffalo,,," into mammals
put "perch,carp,trout" into fish
put "robin" into birds
put "put concatenate(mammals, fish, birds, "&q&"^"&q& ") into ark"
into cmd
do cmd
;put ark
end testDoWithArgs
function concatenate aaa, bbb, ccc, D
return aaa &D&bbb &D&ccc &D
end concatenate
---- end working code
Jim Ault
Las Vegas
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