89 lines
1.4 KiB
Java
89 lines
1.4 KiB
Java
|
<h2>Comments</h2>
|
||
|
|
<pre><code>%
|
||
|
|
% Foobar
|
||
|
|
|
||
|
|
/* Foo
|
||
|
|
bar */</code></pre>
|
||
|
|
|
||
|
|
<h2>Strings</h2>
|
||
|
|
<pre><code>""
|
||
|
|
"Foo \"bar\" baz"</code></pre>
|
||
|
|
|
||
|
|
<h2>Numbers</h2>
|
||
|
|
<pre><code>0
|
||
|
|
42
|
||
|
|
0154
|
||
|
|
0xBadFace
|
||
|
|
0B0101
|
||
|
|
3.14159
|
||
|
|
2e8
|
||
|
|
3.E~7
|
||
|
|
4.8E12
|
||
|
|
&0
|
||
|
|
&a
|
||
|
|
&\n
|
||
|
|
&\124</code></pre>
|
||
|
|
|
||
|
|
<h2>Functions and procedures</h2>
|
||
|
|
<pre><code>proc {Max X Y Z}
|
||
|
|
{Browse Z}
|
||
|
|
f(M Y)</code></pre>
|
||
|
|
|
||
|
|
<h2>Full example</h2>
|
||
|
|
<pre><code>proc {DisMember X Ys}
|
||
|
|
dis Ys = X|_ [] Yr in Ys = _|Yr {DisMember X Yr} end
|
||
|
|
end
|
||
|
|
|
||
|
|
class DataBase from BaseObject
|
||
|
|
attr d
|
||
|
|
meth init
|
||
|
|
d := {NewDictionary}
|
||
|
|
end
|
||
|
|
meth dic($) @d end
|
||
|
|
meth tell(I)
|
||
|
|
case {IsFree I.1} then
|
||
|
|
raise database(nonground(I)) end
|
||
|
|
else
|
||
|
|
Is = {Dictionary.condGet @d I.1 nil} in
|
||
|
|
{Dictionary.put @d I.1 {Append Is [I]}}
|
||
|
|
end
|
||
|
|
end
|
||
|
|
meth ask(I)
|
||
|
|
case {IsFree I} orelse {IsFree I.1} then
|
||
|
|
{DisMember I {Flatten {Dictionary.items @d}}}
|
||
|
|
else
|
||
|
|
{DisMember I {Dictionary.condGet @d I.1 nil}}
|
||
|
|
end
|
||
|
|
end
|
||
|
|
meth entries($)
|
||
|
|
{Dictionary.entries @d}
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
declare
|
||
|
|
proc {Dynamic ?Pred}
|
||
|
|
Pred = {New DataBase init}
|
||
|
|
end
|
||
|
|
proc {Assert P I}
|
||
|
|
{P tell(I)}
|
||
|
|
end
|
||
|
|
proc {Query P I}
|
||
|
|
{P ask(I)}
|
||
|
|
end
|
||
|
|
|
||
|
|
EdgeP = {Dynamic}
|
||
|
|
{ForAll
|
||
|
|
[edge(1 2)
|
||
|
|
edge(2 1) % Cycle
|
||
|
|
edge(2 3)
|
||
|
|
edge(3 4)
|
||
|
|
edge(2 5)
|
||
|
|
edge(5 6)
|
||
|
|
edge(4 6)
|
||
|
|
edge(6 7)
|
||
|
|
edge(6 8)
|
||
|
|
edge(1 5)
|
||
|
|
edge(5 1) % Cycle
|
||
|
|
]
|
||
|
|
proc {$ I} {Assert EdgeP I} end
|
||
|
|
}</code></pre>
|