Re: [bug] Problem with Worg (html?) publishing (was Re: [O] orgmode BEAMER scaling image)

[Nick Dokos]

Eric S Fraga <address@hidden> wrote:


> In the org-beamer tutorial (Worg/org-tutorials/org-beamer/tutorial.org),
> I have the following:
> 
> ,----
> | 
> | #+BEGIN_Example
> | ,** Two columns
> | 
> | ,*** A block                                           
> :B_ignoreheading:BMCOL:
> |     :PROPERTIES:
> |     :BEAMER_env: ignoreheading
> |     :BEAMER_col: 0.4
> |     :END:
> |     - this slide consists of two columns
> |     - the first (left) column has no heading and consists of text
> |     - the second (right) column has an image and is enclosed in an
> |       @example@ block
> | 
> | ,*** A screenshot                                            
> :BMCOL:B_example:
> |     :PROPERTIES:
> |     :BEAMER_col: 0.6
> |     :BEAMER_env: example
> |     :END:
> | ,    #+ATTR_LATEX: width=\textwidth
> |     [[file://../../images/org-beamer/a-simple-slide.png]]
> | #+END_Example
> `----
> 
> Note the second last line of the example which sets the latex attribute
> for the following image.  On export to HTML for publishing on the Worg
> website, this line has magically *disappeared*!  The ',' is supposed to
> protect this line but instead it disappears.
> 
> I have gone through the whole tutorial and this is the only line that
> has disappeared.  My intuition is that the HTML export is ignoring all
> LATEX attribute lines (as it should) but that maybe the regex for is
> rather greedy?  However, I have looked at the code but have not seen
> anywhere obvious where this happens -- all the regexs I found seem to be
> pinned at the start of the line with only whitespace allowed before
> the #+.
> 

Your intuition is (almost) correct: in org-export-preprocess-string, the comma
is stripped by org-export-replace-src-segments-and-examples and the
ATTR_LATEX is stripped by org-export-select-backend-specific-text which 
very explicitly says:

,----
|       ...
|       ;; Delete #+attr_Backend: stuff of another backend. Those
|       ;; matching the current backend will be taken care of by
|       ;; `org-export-attach-captions-and-attributes'
|       ...
`----


Nick