[plt-scheme] Help with #0 and #0# notation in the REPL

[Aleks Bromfield]

On Mon, Jan 28, 2008 at 09:36:32PM -0600, Robby Findler wrote:
> Altho in v4, the input/output pair that match are read/write and the
> input we use for code isn't read, but read-syntax.
> 
> In less obscure wording, v4 does not support the #0= notation for
> constants in programs. You'd have to build the data structure at
> runtime, or use `shared' (or similar).

Why was this change made?

~ Aleks