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Subject: |
23.1.96; savehist-printable for hash tables |
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Date: |
Fri, 23 Apr 2010 10:49:22 -0700 |
IIUC, starting with Emacs 23.2, we can prin1 and read hash tables. If
that's correct, then `savehist-printable' could presumably be updated to
add this sexp to the cond: (hash-table-p value). IOW:
(defun savehist-printable (value)
"Return non-nil if VALUE is printable."
(cond
((stringp value))
((numberp value))
((symbolp value))
((hash-table-p value))
(t
(with-temp-buffer
(condition-case nil
(let ((print-readably t) (print-level nil))
(prin1 value (current-buffer))
(read (point-min-marker))
t)
(error nil))))))
In GNU Emacs 23.1.96.1 (i386-mingw-nt5.1.2600)
of 2010-04-20 on G41R2F1
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4) --no-opt --cflags -Ic:/xpm/include'
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--- Begin Message ---
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Subject: |
Re: bug#6017: 23.1.96; savehist-printable for hash tables |
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Date: |
Sun, 25 Apr 2010 14:30:35 -0400 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.1.96 (gnu/linux) |
"Drew Adams" <address@hidden> writes:
> Is this feature of hash-table print+read support specified anywhere,
> so we know what the support really is? If not, could you please
> document it?
See `Creating Hash Tables' in the Lisp manual.
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