with-standard-io-syntax

[Sam Steingold]

The introduction of print-length and print-level requires the CL-like
macro with-standard-io-syntax which would bind these (and all the future
variables which break read-back consistency) to nil.
Right now, (rgrep "print-length nil" "*.el" "~/src/emacs/trunk/" nil)
produces two dozen places where print-length is bound to nil and a quick
examination shows that the set of variable which need to be bound to nil
for print-read consistency is not uniformly understood.
I already have been bitten by this, and I think others will be sooner
rather than later.

--
Sam Steingold (http://sds.podval.org/) on Ubuntu 12.04 (precise) X 11.0.11103000
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