Grant Likely wrote:
Okay. So the redefinition of nodes feature got implemented far faster
than I expected it would. Woohoo! :-)
That leaves the last bit that I really care about; deleting nodes and
properties. I can probably find the time to implement the C code for
this, but have no idea how to do the grammer, and I don't think we've
got a consensus on syntax.
Given the following tree...
/ {
child-label: child {
prop = <0xbad>;
grandchild-label: grandchild {
};
};
};
...here are the use cases that I see as important (plus some suggested
syntax. I'm not happy with it though, and I'm open to better ideas).
1) Deleting a property from a node:
&child-label {
/* syntax to delete "prop" property */
delete-prop("prop");
^prop; /* this isn't very good, hard to differentiate from
node deletion */
__delete_property = "prop";
};
2) Delete a child node:
&child-label {
/* syntax to delete "grandchild" node */
delete-node("grandchild");
^grandchild;
__delete_node = "grandchild";
grandchild = ^{};
};
3) Delete a labelled node from the top level:
delete-node(&grandchild-label);
I vote for the function-like option -- delete-prop("prop"), etc.
-Scott
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