* contrib/lisp/org-export.el (org-export-filters-alist): New variable.
(org-export-install-filters): New function.
* EXPERIMENTAL/org-e-ascii.el (org-e-ascii-filters-alist): New variable.
Back-end specific filters can now be installed in communication
channel with `org-BACKEND-filters-alist' variable.
* contrib/lisp/org-element.el (org-element-map): Remove included file
expansion part.
* contrib/lisp/org-export.el (org-export-as): Expand include keywords
before executing blocks.
(org-export-expand-include-keyword, org-export-prepare-file-contents):
New functions.
(org-export-included-file, org-export-parse-included-file): Removed
functions.
* EXPERIMENTAL/org-e-ascii.el (org-e-ascii-keyword): Remove include
keyword handling.
* EXPERIMENTAL/org-e-latex.el (org-e-latex-keyword): Remove include
keyword handling.
Back-ends do not need anymore to take care of #+include keywords.
This change is required since file inclusion can potentially break any
structure. Hence, it should be done before parsing.
* EXPERIMENTAL/org-e-ascii.el (org-e-ascii-quote-margin): New
variable.
(org-e-ascii--current-text-width, org-e-ascii-quote-block,
org-e-ascii-quote-section, org-e-ascii-verse-block): Use new variable.
* contrib/lisp/org-element.el (org-element-dual-keywords): Move
caption in the dual keywords category.
(org-element--affiliated-re): Change regexp matching a dual keyword.
(org-element-collect-affiliated-keywords): Dual parsed keywords also
get their optional value parsed as a secondary string.
* EXPERIMENTAL/org-e-latex.el (org-e-latex--caption/label-string,
org-e-latex-src-block): Apply caption status change.
* EXPERIMENTAL/org-e-ascii.el (org-e-ascii--build-caption): Apply
caption status change.
(org-e-ascii--list-listings, org-e-ascii--list-tables): Apply caption
status change. Also use short caption name when available.
The status change implies a syntax change. Captions can now share
#+results: syntax, which mean that they can have a secondary
value. Thus, the following Org snippets are valid, the first two being
equivalent.
#+caption: long name
#+caption[]: long name
#+caption[short name]: long name
Nicolas Goaziou