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Re: shared-substrings missing in 1.7
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From: |
Paul Jarc |
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Subject: |
Re: shared-substrings missing in 1.7 |
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Date: |
Fri, 16 Jan 2004 15:24:18 -0500 |
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User-agent: |
Gnus/5.110002 (No Gnus v0.2) Emacs/21.3 (gnu/linux) |
Greg Troxel <address@hidden> wrote:
> This is a guile-specific non-R5RS feature, AFAICT. It seems a bit
> non-Schemely, too, for a mutation of one object to cause another to
> change
Implicit copy-on-write substrings would be nice, though. Not that I'm
volunteering. :)
> As I've used shared substrings it is also non trivial to
> change the code.
>
> So it sounds like you have code that depends on the cross-mutability
> behavior.
No, I think his code simply runs extremely slowly without shared
substrings.
paul