XML API

[Michel Fortin]

On 2009-05-24 14:13:31 -0400, Michel Fortin <michel.fortin at michelf.com> said:

>> The reason is that if your callback api only does a single callback, all
>> you've really done is move the switch statement inside the function call
>> at the cost of having to define a crapload of functions outside of it.
> 
> The thing is that inside the parser code there is already a separate 
> code path for dealing with each type of token. Various callbacks can be 
> called from these separate code paths. When you return after parsing 
> one token, the code path isn't different anymore, so you need to add an 
> extra swich statement that wouldn't be there with a callback called 
> from the right code path.

I suddenly noticed that I misunderstood what you meant in the paragraph 
above so I don't expect my answer above to fit your question. 
Nevertheless, I suppose the examples at the end of my previous post 
will clarify things: basically the callback isn't a function pointer, 
it's an alias template argument which can disptach to overloaded 
functions or template functions so you don't need a switch statement.

Sorry for any confusion.


-- 
Michel Fortin
michel.fortin at michelf.com
http://michelf.com/