std.jgrandson

[Sean Kelly via Digitalmars-d]

I don't want to pay for anything I don't use.  No allocations 
should occur within the parser and it should simply slice up the 
input.  So the lowest layer should allow me to iterate across 
symbols in some way.  When I've done this in the past it was 
SAX-style (ie. a callback per type) but with the range interface 
that shouldn't be necessary.

The parser shouldn't decode or convert anything unless I ask it 
to.  Most of the time I only care about specific values, and 
paying for conversions on everything is wasted process time.

I suggest splitting number into float and integer types.  In a 
language like D where these are distinct internal types, it can 
be valuable to know this up front.

Is there support for output?  I see the makeArray and makeObject 
routines...  Ideally, there should be a way to serialize JSON 
against an OutputRange with optional formatting.