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Re: [Orgmode] FR: headline iteration API

From: Daniel Clemente
Subject: Re: [Orgmode] FR: headline iteration API
Date: Wed, 04 Jun 2008 16:35:01 +0200
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.1 (gnu/linux)

  I find this very interesting. Some ideas:

- Maybe it could provide access not only to the headlines, but to the headlines 
of the headlines, and of their headlines, etc. In fact, access to the whole 
tree. This would allow batch processing of any contents. As a plus, each header 
would get a path (like XPath in XML, or DOM in XHTML) and would be addressable. 
Maybe useful for links.

- If there is an API to the content, applications can use data stored in org 
files in simple ways. For instance: „for all the headers with tag AAAA, get the 
the subheaders except if they are DONE, and get the property BBBB“. I don't 
know the „tree“ data structures in Emacs Lisp, but I suppose that representing 
a whole org file as a LISP object would be cool; also for easy exporting and 
data interchange.

- An API would be useful not only to generate reports, etc. like in your 
examples, but also to execute actions on each header; for instance „export“ 
each header, „delete“ it, ... (And now with latest version, each header can 
have different export options)

- Of course, this is already possible by going through the file looking for 
headers; an API would make iteration easier, like with mapcar 

  And many more things...


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