On 29-8-2010 1:22, Patrick Gundlach wrote:
Am 29.08.2010 um 13:15 schrieb Hans Hagen:
On 29-8-2010 9:03, Taco Hoekwater wrote:
On 08/29/2010 08:48 AM, Patrick Gundlach wrote:
Is the following 172 something like I need? How would I access that
(besides string.gsub())?
<node nil< 172> nil : hlist 2>
I am currently using this number in the middle via tostring() and
gsub(). But I'd still like to know if this can be used as an id.
This number uniquely identifies a node for as long as it stays
allocated, yes. If it is freed, a new node may have the same
number.
but for storing the node's id one can as well use the nodes user object itself
as it's equally unique during the livespan of a node and one can compare
pointers so the 'id' snippet in the string is not giving more uniqueness than
the node user object itself
I need to generate some unique text for that node (I am creating a visual representation
of a nodelist using graphviz), so I see two choices: a) get some id string or b) create a
look table with the nodes as an index and some random string as the value for each node.
But somehow b) didn't work. Is there a way to get the "value of a pointer" as a
text string in Lua? Such as when you do tostring({}).
isn't tostring(n) unique enough then? as long is the node is not freed
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