Nicolas Goaziou <m...@nicolasgoaziou.fr> writes: > Rainer M Krug <rai...@krugs.de> writes: > >> This means *a specific property* - or *any property*? In other words: >> can property A inherit from one level lower if property B is set in the >> current level? > > It can.
That's good. > >> Then I think there is a bug. Look at the following example: >> >> #+PROPERTY: header-args :tangle-mode (identity #o444) >> #+PROPERTY: header-args+ :eval no-export >> >> #+PROPERTY: header-args:R :session *R.EnergyBalance* >> >> >> * Make sure org-use-property-inheritance is nil >> >> #+begin_src emacs-lisp >> (setq org-use-property-inheritance nil) >> #+end_src >> >> #+RESULTS: >> >> Therefore from now on, we will only look at the current level and >> ignore properties set at lower levels - correct? >> >> * Without properties >> #+begin_src >> 13 >> #+end_src >> >> ,---- >> | Properties: >> | :header-args :tangle-mode (identity #o444) :eval no-export >> | :header-args:nil nil >> | Switches: >> | Header Arguments: >> | :cache no >> | :eval no-export >> | :exports code >> | :hlines no >> | :noweb no >> | :results replace >> | :session none >> | :tangle no >> | :tangle-mode 292 >> `---- >> >> * With Properties at level one >> :PROPERTIES: >> :header-args+: :tangle SetAtFirstLevel >> :header-args+: :output-dir ./output >> :END: >> >> #+begin_src R >> 13 >> #+end_src >> >> ,---- >> | Lang: R >> | Properties: >> | :header-args :tangle-mode (identity #o444) :eval no-export :tangle >> SetAtFirstLevel :output-dir ./output >> | :header-args:R :session *R.EnergyBalance* >> | Header Arguments: >> | :cache no >> | :eval no-export >> | :exports code >> | :hlines no >> | :noweb no >> | :output-dir ./output >> | :results replace >> | :session *R.EnergyBalance* >> | :tangle ./output/scripts/analysisCode.do.not.source.R >> | :tangle-mode 292 >> `---- >> >> ** Second level without properties >> These should now be the same as [[Without properties]] as >> org-use-property-inheritance is nil. >> #+begin_src R >> cat(13) >> #+end_src >> >> But it is the same as [[With Properties at level one]]. >> ,---- >> | Lang: R >> | Properties: >> | :header-args :tangle-mode (identity #o444) :eval no-export :tangle >> SetAtFirstLevel :output-dir ./output >> | :header-args:R :session *R.EnergyBalance* >> | Header Arguments: >> | :cache no >> | :eval no-export >> | :exports code >> | :hlines no >> | :noweb no >> | :output-dir ./output >> | :results replace >> | :session *R.EnergyBalance* >> | :tangle ./output/scripts/analysisCode.do.not.source.R >> | :tangle-mode 292 >> `---- > > There's no bug. > > Babel activates inheritance on purpose, no matter what > `org-use-property-inheritance' says. See the last line of its docstring: > "ob-core.el" (in particular `org-babel-view-src-block-info') calls > `org-entry-get' with `t', not `selective'. > > Really, `org-use-property-inheritance' is for your own properties. Org > ignores it to handle its own internal properties. Ah. That explains.I think it would be quite useful to add this to the info section of org-use-property-inheritance. > >> Concerning property accumulation: I assume you mean the header-args+ - >> correct? Because I could not find the term "accumu" in the org manual. > > Correct. > > I don't think they have a name, but they should, because they are > a different beast than regular properties. > I agree - and I like the name "accumulation properties" or "aggregation properties". >> Are these properties treated as a normal properties, and the same rules >> apply, or are there specific rules? > > They follow specific rules. For example there can only be one property > A in a given property drawer, but there can be as many A+ as you want. > Also, (org-entry-get (point) "A+") will not return something meaningful. Thanks - things are much clearer now. So there is no way at the moment to define a property in lower level and then overwrite it in a higher level? It might be only me, but I think that would be quite a useful addition. Thanks a lot for your help, Rainer > > > Regards, -- Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany) Centre of Excellence for Invasion Biology Stellenbosch University South Africa Tel : +33 - (0)9 53 10 27 44 Cell: +33 - (0)6 85 62 59 98 Fax : +33 - (0)9 58 10 27 44 Fax (D): +49 - (0)3 21 21 25 22 44 email: rai...@krugs.de Skype: RMkrug PGP: 0x0F52F982
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