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org.el: Fix bug when setting properties with a null value 

* org.el (org-re-property): New parameter `allow-null' to
match property with a null value.
(org-entry-put): Correctly update a property with a null
value.

Thanks to Andrea Rossetti for reporting this and suggesting a fix.
This commit is contained in:
Bastien Guerry 2014-05-30 08:46:39 +02:00
parent 34c2365081
commit 822dcfc881
1 changed files with 9 additions and 7 deletions
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16
lisp/org.el
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@ -6155,12 +6155,14 @@ Use `org-reduced-level' to remove the effect of `org-odd-levels'."
(defvar org-font-lock-keywords nil)
(defsubst org-re-property (property &optional literal)
"Return a regexp matching a PROPERTY line.
Match group 3 will be set to the value if it exists."
(concat "^\\(?4:[ \t]*\\)\\(?1::\\(?2:"
(if literal property (regexp-quote property))
"\\):\\)[ \t]+\\(?3:[^ \t\r\n].*?\\)\\(?5:[ \t]*\\)$"))
(defsubst org-re-property (property &optional literal allow-null)
"Return a regexp matching a PROPERTY line.
Match group 3 will be set to the value if it exists."
(concat "^\\(?4:[ \t]*\\)\\(?1::\\(?2:"
(if literal property (regexp-quote property))
"\\):\\)[ \t]+\\(?3:[^ \t\r\n]"
(if allow-null "*")
".*?\\)\\(?5:[ \t]*\\)$"))
(defconst org-property-re
(org-re-property ".*?" 'literal)
@ -15589,7 +15591,7 @@ If it is not a string, an error is raised."
(setq range (org-get-property-block beg end 'force))
(goto-char (car range))
(if (re-search-forward
(org-re-property property) (cdr range) t)
(org-re-property property nil t) (cdr range) t)
(progn
(delete-region (match-beginning 0) (match-end 0))
(goto-char (match-beginning 0)))