From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rasmus <rasmus@gmx.us>
Subject: Re: exporting "flattened" tagged subtrees
Date: Fri, 01 Dec 2017 15:26:35 +0100
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Michel Damiens <michel.damiens@gmail.com> writes:

> Hello,
>
> I would like to export and org file in such a way that :
> - only tagged subtrees are exported (for a specific tag)
> - the tree structure is "flattened"
>
> for example a file example.org containing :
> * heading 1 					:tag:
> 	** subheading 1.1
> 	   	content 1.1
> 	** subheading 1.2 			:tag:
> 		content 1.2
> *heading 2
> 	** subheading 2.1 			:tag:
> 		content 2.1
>         ** subheading 2.1.1		:tag:
>         ** subheading 2.1.2 	:tag:
>          content 2.1.2
> 	** subheading 2.2
>     	content 2.2
>
> would be exported to the file example.org.org containing :
> * heading 1
> * subheading 1.2
> 	content 1.2
> * subheading 2.1
> 	content 2.1
> * subheading 2.1.1
> * subheading 2.1.2
> 	content 2.1.2
>
> (which in turn would be exported to latex, beamer or html for example)

The first part you can archive with these tags:

    #+SELECT_TAGS:, #+EXCLUDE_TAGS:
        These lines provide settings for exporting files. For more details see Export settings .

Flatting the file can be done by search and replace

(while (search-forward-regexp "^*+ " nil t)
    (replace-match "* "))

Rasmus

-- 
ツ