[plt-scheme] question about drscheme read speed/coloring

From: Robby Findler (robby at cs.uchicago.edu)
Date: Tue Feb 22 20:55:26 EST 2005

There's not really any way to speed it up in v209, but it has been sped 
up considerably in v299 (available as pre-release binaries, or via 


On Feb 22, 2005, at 7:27 PM, Psy-Kosh wrote:

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> First, if this is explained somewhere in the docs, please just point 
> out
> to me where, because I haven't been able to find it.
> It seems that inside the DrScheme environment (v209), doing a
> (read)/(read-line)/etc is very slow.
> specifically, if, say, I do a (read-line) then give it a big blob of
> text, it will take a while to handle it (I'll see it slowly turn from
> light green to dark green) and only then will it "release" and let
> execution continue.
> This doesn't seem to happen in the mred "console mode", for instance.
> Is there some way to speed this up inside drscheme? What's it doing
> that's taking it extra time?
> Again, sorry if this is explained somewhere in the docs, but if so, I
> haven't found it.
> Thanks.
> Psy-Kosh
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