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From: Ted Zlatanov <tzz@lifelogs.com>
To: help-gnu-emacs@gnu.org
Subject: Re: plists, alists, and hashtables
Date: Wed, 05 Aug 2015 21:36:00 -0400	[thread overview]
Message-ID: <87zj25tczj.fsf@lifelogs.com> (raw)
In-Reply-To: mailman.7862.1438810623.904.help-gnu-emacs@gnu.org

On Wed, 5 Aug 2015 14:36:50 -0700 (PDT) Drew Adams <drew.adams@oracle.com> wrote: 

>> So as a first cut, maybe <(k1 . v1) (k2 . v2)> and
>> <<(k1 . v1) (k2 . v2)>> would be a good syntax
...
DA> Unfortunately, in Emacs Lisp we do not (yet) have reader macros.
DA> But that is all the *more* (not less) reason not to hard-code
DA> such syntax restrictions into the definition of Lisp itself.

DA> Working on adding reader macros to Emacs Lisp would be (very!)
DA> helpful.  Hard-coding < and << syntax is not helpful (IMHO).

OK, I agree, except that it should be globally enabled, so whatever the
syntax, it can become a standard way to express a map.  That's the
point; I can already use hashtables just fine.  It needs to be accessible.

Can anyone explain to me what's missing in order to implement the reader
macro that translates «xyz» to some version of #s(hash-table ...)?

Ted


  parent reply	other threads:[~2015-08-06  1:36 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <mailman.7856.1438803631.904.help-gnu-emacs@gnu.org>
2015-08-05 20:08 ` plists, alists, and hashtables Ted Zlatanov
2015-08-05 20:45   ` Stefan Monnier
2015-08-05 21:36   ` Drew Adams
2015-08-05 21:41   ` Pascal J. Bourguignon
     [not found]   ` <mailman.7860.1438807554.904.help-gnu-emacs@gnu.org>
2015-08-06  1:32     ` Ted Zlatanov
     [not found]   ` <mailman.7862.1438810623.904.help-gnu-emacs@gnu.org>
2015-08-06  1:36     ` Ted Zlatanov [this message]
2015-07-31 21:42 How to iterate over properties in a plist? Marcin Borkowski
2015-07-31 22:18 ` Stefan Monnier
     [not found]   ` <mailman.7705.1438381807.904.help-gnu-emacs@gnu.org>
2015-07-31 23:33     ` Pascal J. Bourguignon
     [not found]       ` <mailman.7750.1438469396.904.help-gnu-emacs@gnu.org>
2015-08-04 10:15         ` plists, alists, and hashtables (was: How to iterate over properties in a plist?) Ted Zlatanov
     [not found]           ` <mailman.7809.1438684158.904.help-gnu-emacs@gnu.org>
2015-08-04 11:23             ` plists, alists, and hashtables Ted Zlatanov
2015-08-05  4:36           ` plists, alists, and hashtables (was: How to iterate over properties in a plist?) Rusi
2015-08-05  6:12             ` plists, alists, and hashtables Pascal J. Bourguignon
2015-08-05  9:47               ` Ted Zlatanov
2015-08-05 12:20                 ` Rusi
2015-08-06 19:16                   ` Stefan Monnier
     [not found]                   ` <mailman.7892.1438888819.904.help-gnu-emacs@gnu.org>
2015-08-07 16:33                     ` Rusi
2015-08-05 17:24                 ` Pascal J. Bourguignon
2015-08-05 18:31                   ` Ted Zlatanov
2015-08-05 19:30                     ` Barry Margolin
2015-08-05 19:40                     ` Robert Thorpe
2015-08-05 21:11                     ` Pascal J. Bourguignon
2015-08-06 15:17                       ` Ted Zlatanov
2015-08-06 18:46                         ` Pascal J. Bourguignon
2015-08-06 20:19                           ` Drew Adams
2015-08-06 21:08                           ` Ted Zlatanov
2015-08-07  0:23                             ` Pascal J. Bourguignon
2015-08-06 19:35                         ` Stefan Monnier
2015-08-05 13:48               ` Drew Adams
2015-08-06 19:12           ` Stefan Monnier
     [not found]           ` <mailman.7890.1438888393.904.help-gnu-emacs@gnu.org>
2015-08-06 20:00             ` Pascal J. Bourguignon
2015-08-06 20:57             ` Ted Zlatanov
2015-08-06 21:10               ` Drew Adams
     [not found]               ` <mailman.7902.1438895429.904.help-gnu-emacs@gnu.org>
2015-08-06 21:15                 ` Ted Zlatanov
2015-08-06 21:31               ` Stefan Monnier
2015-08-07  1:53                 ` Ted Zlatanov
2015-08-07  7:34                   ` Pascal J. Bourguignon
2015-08-07 16:32                   ` Stefan Monnier
     [not found]                   ` <mailman.7941.1438965165.904.help-gnu-emacs@gnu.org>
2015-08-08  3:48                     ` Pascal J. Bourguignon
2015-08-08 13:42                       ` Stefan Monnier
2015-08-08 14:51                         ` Rusi
2015-08-07  0:08               ` Pascal J. Bourguignon
2015-08-07  2:14                 ` Ted Zlatanov
2015-08-07  7:53                   ` Pascal J. Bourguignon
2015-08-07 11:21                     ` Ted Zlatanov
2015-08-07 11:47                       ` Pascal J. Bourguignon
2015-08-07 17:21                         ` Ted Zlatanov
2015-08-07 19:21                           ` Stefan Monnier
     [not found]                           ` <mailman.7952.1438975314.904.help-gnu-emacs@gnu.org>
2015-08-08  3:52                             ` Pascal J. Bourguignon
2015-08-07 16:35                       ` Stefan Monnier

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