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[Orgmode] Re: How to customize the org-mode's BEGIN_SRC HTML output

From: Rafael
Subject: [Orgmode] Re: How to customize the org-mode's BEGIN_SRC HTML output
Date: Wed, 25 Aug 2010 20:54:43 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux)

Puneeth <address@hidden> writes:

> The line breaks being stripped off is due to code in org2blog. It has
> nothing to do with org-mode's export. Wordpress does not ignore
> linebreaks in the content, which looks very ugly for normal posts.
> Code in org2blog strips off the line breaks from the html generated by
> org-export-as-html. It checks for <pre> and <blockquote> tags and
> leaves out the newlines within those tags. This is (most) probably
> what is causing trouble.
> I'll only be able to look into it in the weekend. Anybody is free to
> beat me to that. :)

This is a workaround, all based on work by Puneeth and Benjamin, that
seems to work for me. I did not know what to do with Benjamin's advice
stuff (Just evaluating it changed nothing in the output). 

;; Benjamin's stuff, one line changed
(defun bnb/org2blog-src-blocks-to-wp-syntaxhighlighter ()
  "Export #+BEGIN_SRC blocks as Wordpress Syntaxhighlighter
tags. There is a special header option, :syntaxhl that contains
the options to pass to syntaxhighlighter.
This is intended to be added to `org-export-preprocess-hooks'"
    (let ((case-fold-search t)
          (colon-re "^[ \t]*:\\([ \t]\\|$\\)")
          lang body headers syntaxhl
      (goto-char (point-min))
      (while (re-search-forward colon-re nil t)
        (replace-match (match-string 1))
        (beginning-of-line 1)
        (insert "[text light=\"true\"]\n")
        (setq beg (point))
        (while (looking-at colon-re)
          (replace-match (match-string 1))
          (end-of-line 1)
          (or (eobp) (forward-char 1)))
        (end-of-line 1)
        (add-text-properties beg
                             (if (bolp)
                                 (1- (point))
                             '(org-protected t))
        (insert "\n[/text]"))
      (unless (boundp 'org-babel-src-block-regexp)
        (require 'ob))
      (while (re-search-forward
              (concat "\\(" org-babel-src-block-regexp
                      "\\|" org-babel-inline-src-block-regexp
              nil t)
        (setq lang (match-string-no-properties 3))
        (if (string-match "-" lang)
            (error "SyntaxHighlighter does not support languages with '-' in 
the names"))
        (setq headers (match-string-no-properties 5))
        (setq body (match-string-no-properties 6))
          (setq syntaxhl
                (if (string-match ":syntaxhl[ ]+\\([^ ]+\\)" headers)
                    (concat " " (replace-regexp-in-string "\;" " " 
(match-string 1 headers))))))
         ;(concat "\n\n[" lang syntaxhl "]\n" body "[/" lang "]\n")
         (concat "\n\n[sourcecode language=\"" lang syntaxhl "\"]\n" body 
         nil t)))))

(add-hook 'org-export-preprocess-hook 

;; searching for [sourcecode ... ] ... [/sourcecode] so that newlines
;; are not removed
;; Puneeth's stuff, two lines changed
(defun org2blog-strip-new-lines (html)
  "Strip the new lines from the html, except in pre and blockquote tags."
      (let* (start-pos end-pos)
        (insert html)
        (setq start-pos (point-min))
        (goto-char start-pos)
        (while (re-search-forward "\\[sourcecode.*" nil t 1)
          (setq end-pos (match-beginning 0))
          (replace-regexp "\\\n" " " nil start-pos end-pos)
          (re-search-forward "\\[/sourcecode.*" nil t 1)
          (setq start-pos (match-end 0))
          (goto-char start-pos))
        (setq end-pos (point-max))
        (replace-regexp "\\\n" " " nil start-pos end-pos)
        (buffer-substring-no-properties (point-min) (point-max))))))

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