Hello,
I'm just starting with Oz/Mozart and trying examples from the
documentation that came with the download of latest version.
When I try the code in 5.3:
% case for pattern matching
proc {Insert Key Value TreeIn ?TreeOut}
case TreeIn
of nil then TreeOut = tree(Key Value nil nil)
[] tree(K1 V1 T1 T2) then
if Key == K1 then TreeOut = tree(Key Value T1 T2)
elseif Key < K1 then T in
TreeOut = tree(K1 V1 T T2)
{Insert Key Value T1 T}
else T in
TreeOut = tree(K1 V1 T1 T)
{Insert Key Value T2 T}
end
end
end
Figure 5.3: Tree insertion using case statement
I mean pasting it into Emacs (OPI running) and run it (with C-M-x) I get:
%********************* binding analysis error *******************
%**
%** variable Insert not introduced
%**
%** in file "Oz", line 76, column 6
%** ------------------ rejected (1 error)
Then I wrap the whole function with
local Insert in
...
end
to make it run. Then I keep on reading the documentation and see an example:
{Browse {Insert alex 17
{Insert rebecca 20
{Insert eeva 45 {Insert seif 43 nil}}}}}
And when I try to run it:
%********************* binding analysis error *******************
%**
%** variable Insert not introduced
%**
%** in file "Oz", line 97, column 9
%** ------------------ rejected (1 error)
Then I have to go back, remove that local Insert in ... end wrapping and put
declare Insert
at the beginning of "proc {Insert Key Value TreeIn ?TreeOut} ...".
Now, am I missing something, are the docs a little bit out of synch or
do I have to figure out these kind of quirks myself?
Cheers,
--
Emre Sevinc
e-MBA Software Development @ Istanbul Bilgi University
http://www.bilgi.edu.tr
http://www.bilgiemba.net
http://www.cogsci.boun.edu.tr
http://ileriseviye.org/blog
http://fazlamesai.net
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