On Tue, Sep 3, 2013 at 6:30 PM, Robert Goldman rpgoldman@sift.net wrote:

Zach Beane wrote:

...

I'd like to change the output translations for a little while and then revert them to the previous configuration. Is that possible via the output translation configuration API?

Zach

This seems not very kosher, but while the *OUTPUT-TRANSLATIONS* variable is not exported from ASDF proper, it is exported from ASDF/OUTPUT-TRANSLATIONS, so it should be substantially stable.

You could just push a copy of *OUTPUT-TRANSLATIONS* somewhere, clear the output translations, do stuff, and then pop the old definition.

You could even dynamically bind it, if there's some easily-delimited context in which you expect to work.

Cheers, R

Yes, you can either (1) save and restore asdf::*output-translations* (e.g. locally bind it) around a call to asdf:initialize-output-translations or (2) save the value of asdf::*output-translation-parameter* and call asdf:initialize-output-translations again with said value, which will recompute things from the parameter and/or the values of configuration files.

I wouldn't be afraid of these not being exported variables: they are very unlikely to disappear. That said, I leave it up to the new maintainer to export them from the asdf package or not (as well as their source-registry equivalents).

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