Re: [RFC] [PATCH] [parser] org-element.el: Handle block parameters

[Nicolas Goaziou <n.goaziou@gmail.com>]

Hello,

Aaron Ecay <aaronecay@gmail.com> writes:

Thanks for the patch.

> This brings the parser in line with the Org Syntax as documented on
> Worg: <http://orgmode.org/worg/dev/org-syntax.html#Greater_Blocks>.

Besides this reason (which could also be solved by updating Org Syntax
document), do you have a need for this extension?

> This does not handle paramters for export blocks (#+begin_latex et
> al.) or comment blocks, but these would be trivial to add if needed.

Syntax for parameters is different for these blocks, and is already
handled.

Now some comments about the code.

> +               (params (progn (looking-at "[ \t]*#\\+BEGIN_CENTER\\(?: +\\(.*\\)\\)?")

I suggest changing the regexp into

  "[ \t]*#\\+BEGIN_CENTER\\(?: +\\(.*\\)[ \t]*\\)?"

in order to trim parameters, if any.

> +			      (match-string 1)))

It's better to use `org-match-string-no-properties' since you don't need
properties.

> +  (format "#+BEGIN_CENTER%s\n%s#+END_CENTER"
> +          (if (org-element-property :parameters center-block)
> +              (concat " " (org-element-property :parameters center-block))
> +            "")
> +	  contents))

A `let' would be nicer.

  (let ((parameters (org-element-property :parameters center-block)))
    (if parameters (concat " " parameters) ""))
> +                 (params (progn (looking-at "[ \t]*#\\+BEGIN_QUOTE\\(?: +\\(.*\\)\\)?")
> +				(match-string 1)))

Ditto.

> +  (format "#+BEGIN_QUOTE%s\n%s#+END_QUOTE"
> +	  (if (org-element-property :parameters quote-block)
> +              (concat " " (org-element-property :parameters quote-block))
> +	    "")

Ditto

> +	 (type (progn (looking-at "[ \t]*#\\+BEGIN_\\(\\S-+\\)\\(?: +\\(.*\\)\\)?")
> +		      (upcase (match-string-no-properties 1))))

Ditto.

> +         (params (match-string-no-properties 2)))

Use `org-match-string-no-properties' here, for compatibility with XEmacs.

> +    (format "#+BEGIN_%s%s\n%s#+END_%s"
> +	    block-type
> +	    (if (org-element-property :parameters special-block)
> +                (concat " " (org-element-property :parameters special-block))
> +	      "")

See above.

> +                 (params (progn (looking-at "[ \t]*#\\+BEGIN_VERSE\\(?: +\\(.*\\)\\)?")
> +                                (match-string 1)))

See above.

> +  (format "#+BEGIN_VERSE%s\n%s#+END_VERSE"
> +          (if (org-element-property :parameters verse-block)
> +              (concat " " (org-element-property :parameters verse-block))
> +            "")

See above.


Regards,

-- 
Nicolas Goaziou