hewih wrote:what are the extra arguments?
Those arguments are passed to the cell structure constructor. There is generally no reason to worry about it, since most of those are handled either by other cell making macros or automatically.
hewih wrote:what are the differences?
Actually, I don't really know. I don't understand what the code is doing or why, but then, I only cleaned up Cells to run cells-gtk3, which only ever uses :change. I think other opcodes are mostly for messing with Cells internals or doing weird initialization protocols. In general, try to use with-integrity as rarely as possible, since it usually indicates that the model is not dataflow-y enough. Although I suppose it is like with functional programming, there are limits beyond which the paradigm becomes just too unwieldy.
Also, if you ever really need to know answers to more in depth questions you can try in
cells-devel, where the original author appears occasionally.
