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Re: [Orgmode] Searching for tags or todo keywords

From: Carsten Dominik
Subject: Re: [Orgmode] Searching for tags or todo keywords
Date: Tue, 16 Sep 2008 10:00:28 +0200

Hi Samuel,

yes, a general Lisp syntax is certainly a good idea. In fact, currently the match is also converted into a Lisp form. However, it does not use simple variables that would be great to supply in a user form. The reason is that I am trying to minimize parsing for properties and tags, so that these are only located if used. Still, I guess you are right that this is a relatively simple extension to make - I will think about it.

- Carsten

On Sep 16, 2008, at 7:15 AM, Samuel Wales wrote:

On Sat, Sep 13, 2008 at 12:10, Carsten Dominik <address@hidden> wrote:
I would like to have parenthesis, but since the parsing is done by string processing, any parenthesis in one of the search strings would be difficult
to handle.

Have you considered using Lisp syntax, perhaps as an alternate?

Benefits include: trivial to parse (no parsing at all -- let Lisp
parse and maybe even eval for you!), easier for the user to remember
(for some of us :)), orthogonal, easy to extend (even with
user-defined functions), easier to quote and escape, consistent,
standard, free of precedence lists, proven technology,
pretty-printable, print-readable, etc.

The old syntax can easily be converted to sexp, thus separating syntax
from semantics and ensuring that the behavior is the same -- without
making anybody have to switch.

Just a possibility.

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