Alain.Frisch@ens.fr writes:

> On Fri, 23 Apr 2004, Christoph Bauer wrote:
>
>> I want to create a tree. This tree should be a very simple accessible
>> for algorithms and easy to understand. The nodes in the tree can have
>> different properties of different types.
>
> Have a look at:
> http://caml.inria.fr/archives/200105/msg00175.html

Wow, supercool. But, btw, there are some missing
  
   prop := None

in get_properties and the second version of put_properties.
Just for the case that someone wants to get the same property
of two different atoms.

Regards,
Christoph Bauer


-- 
beginfig(1)u=3cm;draw fullcircle scaled 2u;x0=x1=y1=x2=y3=0;-y0=y2=x3=1u;
filldraw z0..{left}z1{left}..z2{curl 1}..z3..z0..cycle;def t(expr p)=fullcircle
scaled .25u shifted(0,p*u);enddef;unfill t(.5);fill t(-.5);endfig;bye

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