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bug#23781: 25.0.95; read-string with HIST lexically bound
From: |
Stephen Berman |
Subject: |
bug#23781: 25.0.95; read-string with HIST lexically bound |
Date: |
Sat, 25 Jun 2016 20:53:34 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) |
On Sat, 25 Jun 2016 12:53:18 -0400 Noam Postavsky
<npostavs@users.sourceforge.net> wrote:
> On Sat, Jun 25, 2016 at 6:12 AM, Stephen Berman <stephen.berman@gmx.net>
> wrote:
>> On Fri, 24 Jun 2016 20:26:45 -0400 Noam Postavsky
>> <npostavs@users.sourceforge.net> wrote:
>>
>>> On Thu, Jun 23, 2016 at 7:18 PM, Drew Adams <drew.adams@oracle.com> wrote:
>>>>> I think we should be a little more specific, not
>>>>> just give examples, something like:
>>>>>
>>>>> Note that functions which take a symbol argument (like
>>>>> ‘symbol-value’, ‘boundp’, and ‘set’) can only retrieve or modify a
>>>>> variable’s dynamic binding (i.e., the contents of its symbol’s
>>>>> value cell).
>>>>
>>>> Be even more specific: A Lisp symbol is a dynamic thing.
>>>> It is an object. Lexical binding has nothing to do with symbols.
>>>> A given _name_ in code can sometimes be lexically bound.
>>>
>>> Hmm, this threatens to get a little philosophical, but that seems to
>>> contradict earlier text in the same node:
>>>
>>> Here is how lexical binding works. Each binding construct
>>> defines a “lexical environment”, specifying the symbols that are
>>> bound within the construct and their local values.
>>
>> I think it's more a question of definition than philosophy: AFAIU using
>> the word "symbols" here is strictly speaking incorrect; it should be
>> "variables".
>
> Yes, perhaps the implementation details leaked a bit too much into the
> description. I think it remains the case that the name of a variable
> is a symbol (as opposed to a string) though.
Well, the info node `(elisp) Variables' says:
In Lisp, each variable is represented by a Lisp symbol (see
Symbols::). The variable name is simply the symbol’s name [...]
and a symbol's name is a string (according to `symbol-name'). But maybe
we should leave the bike shed before this gets too philosophical ;-)
Steve Berman
- bug#23781: 25.0.95; read-string with HIST lexically bound, Tino Calancha, 2016/06/17
- bug#23781: 25.0.95; read-string with HIST lexically bound, Michael Heerdegen, 2016/06/17
- bug#23781: 25.0.95; read-string with HIST lexically bound, Noam Postavsky, 2016/06/23
- bug#23781: 25.0.95; read-string with HIST lexically bound, Drew Adams, 2016/06/23
- bug#23781: 25.0.95; read-string with HIST lexically bound, Noam Postavsky, 2016/06/24
- bug#23781: 25.0.95; read-string with HIST lexically bound, Stephen Berman, 2016/06/25
- bug#23781: 25.0.95; read-string with HIST lexically bound, Noam Postavsky, 2016/06/25
- bug#23781: 25.0.95; read-string with HIST lexically bound,
Stephen Berman <=
- bug#23781: 25.0.95; read-string with HIST lexically bound, Noam Postavsky, 2016/06/25
- bug#23781: 25.0.95; read-string with HIST lexically bound, Stephen Berman, 2016/06/25
- bug#23781: 25.0.95; read-string with HIST lexically bound, Michael Heerdegen, 2016/06/25
- bug#23781: 25.0.95; read-string with HIST lexically bound, Noam Postavsky, 2016/06/25
- bug#23781: 25.0.95; read-string with HIST lexically bound, Noam Postavsky, 2016/06/26
- bug#23781: 25.0.95; read-string with HIST lexically bound, Drew Adams, 2016/06/25
- bug#23781: 25.0.95; read-string with HIST lexically bound, Drew Adams, 2016/06/25
- bug#23781: 25.0.95; read-string with HIST lexically bound, Drew Adams, 2016/06/25
- bug#23781: 25.0.95; read-string with HIST lexically bound, Tino Calancha, 2016/06/23