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From: Carsten Dominik <dominik@science.uva.nl>
To: "Steven E. Harris" <seh@panix.com>
Cc: emacs-orgmode@gnu.org
Subject: Re: Re: Release 6.17
Date: Sun, 4 Jan 2009 17:01:14 +0100	[thread overview]
Message-ID: <1AD01E3D-3A98-4811-A7A1-0491189CE5C0@uva.nl> (raw)
In-Reply-To: <uljtrkunt.fsf@torus.sehlabs.com>


On Jan 4, 2009, at 3:33 PM, Steven E. Harris wrote:

> Carsten Dominik <carsten.dominik@gmail.com> writes:
>
>> Code references use special labels embedded directly into the source
>> code.  Such labels look like "((name))" and must be unique within a
>> document.
>
> How does the parser know that, say, "((def))" is not a valid  
> expression
> in the surrounding Lisp forms? Is it important that it be separated by
> space, or be the last token on the line?
>
> Trying to concoct a motivating example, consider a structure  
> represented
> as nested lists:
>
> ,----
> | '(a
> |   ((b c) d)
> |   (((e) f))    ((def))
> |   g)
> `----
>
> Without knowing what the enclosing `quote' form means, how do know  
> that
> "((def))" is not part of it?

Hi Steven,

good question, and the answer is that is does not know,
cannot know, because this is a feature that is supposed
to work for any kind of example, an the parser cannot
know all possible syntaxes :-)

This idea is to make this work in a heuristic way, by using something
that is unlikely enough to occur in real code.

You are right that what I am using might be too
dangerous for emacs lisp or other lisp dialects, and
it could also show up in other languages like C.

What would be safer?

  <<name>>    like the other Org-mode targets?  That would make sense.
              Does anyone know a language where this would be used
              in real life?  It would make it harder to write about
              Org-mode, though.

Or do we need another option, so that, if needed, we could switch do
a different syntax?

Comments are very welcome.

- Carsten

next prev parent reply	other threads:[~2009-01-04 16:01 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-04  8:13 Release 6.17 Carsten Dominik
2009-01-04  8:22 ` Carsten Dominik
2009-01-04 14:33 ` Steven E. Harris
2009-01-04 16:01   ` Carsten Dominik [this message]
2009-01-04 20:24     ` Steven E. Harris
2009-01-05 12:32       ` Carsten Dominik
2009-01-05 13:38       ` Steven E. Harris
2009-01-04 20:58     ` Eddward DeVilla
2009-01-05 11:45     ` David Lord
2009-01-05 12:26     ` Rick Moynihan
     [not found] <20090104170210.5BBE434805@mail2.panix.com>
2009-01-05  2:45 ` Tom Breton (Tehom)
2009-01-05  3:04   ` Samuel Wales

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