[armedbear-devel] asdf encodings and abcl
evenson at panix.com
Wed Apr 11 15:07:09 UTC 2012
On Apr 9, 2012, at 03:21 , Faré wrote:
> Dear ABCL developers,
> I'm currently adding source file encoding support to ASDF.
> It will hopefully be part of ASDF 2.21, though the plan is that
> anything but :utf-8 and :default requires an extension :asdf-encodings.
> I didn't find any way with ABCL to detect the list of external formats,
> or to determine is a given keyword is an acceptable name for an external format.
> How do I do that?
After a quick check, I don't think we define an interface. Nor
could I find something in SBCL to copy. Do you have a reference to an API we can
Essentially we thunk through to the [JVM Charset implementation],
is which each named charset is used as its natural keyword form
(i.e. the JVM charset ISO-8859-1 is specified by passing the :iso-8859-1
As an intermediate solution,
(jss:hashmap-to-hashtable (#"availableCharsets" 'java.nio.charset.Charset))
will return a hashtable whose keys will be the allowable names for external formats.
"Intermediate" because I would like to keep ASDF independent of the
abcl-contrib mechanism, as ASDF is a requirement of ABCL-CONTRIB,
so I'd rather that we agree on an API, and I'll implement this with
the Java FFI primitives that JSS is based upon.
"A screaming comes across the sky. It has happened before, but there is nothing to compare to it now."
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