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org-element/ox: Introduce :optional-title property and an accessor 

* lisp/org-element.el (org-element-headline-parser): Node
  property :OPTIONAL_TITLE: in a headline will be parsed and stored
  under :optional-title property.
* lisp/ox.el (org-export-get-optional-title): New function.
This commit is contained in:
Nicolas Goaziou 2013-02-23 21:33:03 +01:00
parent a1236b9606
commit e5a249b327
2 changed files with 19 additions and 5 deletions
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18
lisp/org-element.el
View File

@ -729,11 +729,12 @@ CONTENTS is the contents of the footnote-definition."
"Parse a headline.
Return a list whose CAR is `headline' and CDR is a plist
containing `:raw-value', `:title', `:begin', `:end',
`:pre-blank', `:hiddenp', `:contents-begin' and `:contents-end',
`:level', `:priority', `:tags', `:todo-keyword',`:todo-type',
`:scheduled', `:deadline', `:closed', `:quotedp', `:archivedp',
`:commentedp' and `:footnote-section-p' keywords.
containing `:raw-value', `:title', `:optional-title', `:begin',
`:end', `:pre-blank', `:hiddenp', `:contents-begin' and
`:contents-end', `:level', `:priority', `:tags',
`:todo-keyword',`:todo-type', `:scheduled', `:deadline',
`:closed', `:quotedp', `:archivedp', `:commentedp' and
`:footnote-section-p' keywords.
The plist also contains any property set in the property drawer,
with its name in upper cases and colons added at the
@ -847,6 +848,13 @@ Assume point is at beginning of the headline."
:quotedp quotedp)
time-props
standard-props))))
(let ((opt-title (org-element-property :OPTIONAL_TITLE headline)))
(when opt-title
(org-element-put-property
headline :optional-title
(if raw-secondary-p opt-title
(org-element-parse-secondary-string
opt-title (org-element-restriction 'headline) headline)))))
(org-element-put-property
headline :title
(if raw-secondary-p raw-value

6
lisp/ox.el
View File

@ -3548,6 +3548,12 @@ fail, the fall-back value is \"???\"."
(and file (file-name-sans-extension (file-name-nondirectory file))))
"???"))
(defun org-export-get-optional-title (headline info)
"Return optional title for HEADLINE, as a secondary string.
INFO is a plist used as a communication channel. If no such
title is defined, return nil."
(org-element-property :optional-title headline))
(defun org-export-first-sibling-p (headline info)
"Non-nil when HEADLINE is the first sibling in its sub-tree.
INFO is a plist used as a communication channel."