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Re: [Orgmode] maximum number of radio targets?

From: Carsten Dominik
Subject: Re: [Orgmode] maximum number of radio targets?
Date: Sun, 7 Sep 2008 17:18:28 +0200

Hi John, I think you are *clearly* overdoing the radiolink feature. The problem is that the implementation uses font-lock to activate matches, so that these are always up to date. This clearly means that the number of links must be limited. I am not sure what the limitation is in Emacs, but I would also suspect that, with this many radio targets, you should be feeling the speed impact with every single character you type - oy you must either have a *very* fast machine - or be a sloooow typist :-) ?

With this many links, I guess a different implementation for radio links would be needed, one that does not use font-lock, but some mechanism that uses idle time.

We don't have such a mechanism yet. There are some plans, in particular to support automatic inter-file links like HOWM does it, by these have not moved beyond the "wishful thinking" stage.

This could be a nice extension! Anyone feels challenged to implement it?

- Carsten

On Sep 6, 2008, at 6:41 PM, John Niekrasz wrote:

Hello org-mode folks,

I really like the radio targets feature. Perhaps too much. I seem to
have encountered a case where using too many of them means that they
don't work. We're talking about 2k of them, with an average length of
15 characters or so. Is it possible that the orgmode internal regexps
are getting too long? Is there a general emacs string variable size
limit I can change to make things work?

I'm using GNU Emacs (i686-pc-linux-gnu, GTK+ Version
2.10.13) and orgmode 6.06b.

I've attached a file as an example. The links don't come up on
loading. But if you erase everything after line 1500 (or alternately
before line 1500), it works.

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