From: Ted Zlatanov <tzz@lifelogs.com>
To: help-gnu-emacs@gnu.org
Subject: Re: print hash table to disk and reread in hash table
Date: Fri, 29 Aug 2008 09:06:02 -0500 [thread overview]
Message-ID: <868wuflxv9.fsf@lifelogs.com> (raw)
In-Reply-To: mailman.17796.1219947087.18990.help-gnu-emacs@gnu.org
On Thu, 28 Aug 2008 21:10:56 +0300 Eli Zaretskii <eliz@gnu.org> wrote:
>> From: Ted Zlatanov <tzz@lifelogs.com>
>> Date: Thu, 28 Aug 2008 09:03:53 -0500
>>
>> If there's no library for serialization, it should definitely be
>> written.
EZ> You mean, like bindat.el?
That looks useful for binary data. I don't see from the code how to use
it to save and load a hashtable. The spec format supports these types:
;; TYPE ::= ( eval EXPR ) -- interpret result as TYPE
;; | u8 | byte -- length 1
;; | u16 | word | short -- length 2, network byte order
;; | u24 -- 3-byte value
;; | u32 | dword | long -- length 4, network byte order
;; | u16r | u24r | u32r -- little endian byte order.
;; | str LEN -- LEN byte string
;; | strz LEN -- LEN byte (zero-terminated) string
;; | vec LEN [TYPE] -- vector of LEN items of TYPE (default: u8)
;; | ip -- 4 byte vector
;; | bits LEN -- List with bits set in LEN bytes.
Is there some magic with `eval'? I didn't get it.
In addition, this library doesn't manage file I/O. I'd expect the
library do do content coding and error handling internally. This is,
actually, the most tedious part. Transforming a hashtable to a list and
back is easy (even I can write it :)
Ted
next prev parent reply other threads:[~2008-08-29 14:06 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-28 1:01 print hash table to disk and reread in hash table Xah
2008-08-28 5:21 ` Thierry Volpiatto
[not found] ` <mailman.17732.1219901096.18990.help-gnu-emacs@gnu.org>
2008-08-28 5:27 ` Xah
2008-08-28 6:17 ` Thierry Volpiatto
2008-08-28 14:03 ` Ted Zlatanov
2008-08-28 18:10 ` Eli Zaretskii
[not found] ` <mailman.17796.1219947087.18990.help-gnu-emacs@gnu.org>
2008-08-29 14:06 ` Ted Zlatanov [this message]
2008-08-29 14:52 ` Eli Zaretskii
[not found] ` <mailman.17897.1220021571.18990.help-gnu-emacs@gnu.org>
2008-08-29 18:10 ` Ted Zlatanov
2008-08-28 8:36 ` Niels Giesen
2008-10-10 20:38 ` harven
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