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Re: [Orgmode] [PATCH] fontified source-code on latex export with listing


From: Sebastian Rose
Subject: Re: [Orgmode] [PATCH] fontified source-code on latex export with listings package
Date: Sun, 09 Aug 2009 18:48:08 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux)

Ahhh - yeees, yes, yes!

I'm looking forward to stop using my old \variable{name} stuff!!!

:)

Thanks a bunch!

  Sebastian


"Eric Schulte" <address@hidden> writes:
> Hi,
>
> The attached patch allows for fontified source code blocks on export to
> LaTeX.  It does this using the 'listings' latex package.  A new variable
> is introduced; `org-export-latex-listings' which should be set to
> non-nil for source-code to be exported as listings blocks.  This
> variable defaults to nil in which case the current practice of exporting
> source code to verbatim latex blocks remains unchanged.
>
> To use this functionality add the following to your org-mode config.
>
>
>   ;; tell org to use listings
>   (setq org-export-latex-listings t)
>   
>   ;; you must include the listings package
>   (add-to-list 'org-export-latex-packages-alist '("" "listings"))
>   
>   ;; if you want colored source code then you need to include the color 
> package
>   (add-to-list 'org-export-latex-packages-alist '("" "color"))
>
> In addition to the patch, I'm attaching an example org-mode file, along
> with the generated LaTeX file and PDF file.
>
> Do you think this would be appropriate for inclusion into org-mode?
>
> Thanks -- Eric
>
>
> diff --git a/lisp/org-exp.el b/lisp/org-exp.el
> index 00fd6c8..9de5e5f 100644
> --- a/lisp/org-exp.el
> +++ b/lisp/org-exp.el
> @@ -2204,6 +2204,8 @@ in the list) and remove property and value from the 
> list in LISTVAR."
>  (defvar htmlp)  ;; dynamically scoped
>  (defvar latexp)  ;; dynamically scoped
>  (defvar org-export-latex-verbatim-wrap) ;; defined in org-latex.el
> +(defvar org-export-latex-listings) ;; defined in org-latex.el
> +(defvar org-export-latex-listings-langs) ;; defined in org-latex.el
>  
>  (defun org-export-format-source-code-or-example
>    (backend lang code &optional opts indent)
> @@ -2310,8 +2312,20 @@ INDENT was the original indentation of the block."
>            ((eq backend 'latex)
>             (setq rtn (org-export-number-lines rtn 'latex 0 0 num cont rpllbl 
> fmt))
>             (concat "\n#+BEGIN_LaTeX\n"
> -                   (org-add-props (concat (car 
> org-export-latex-verbatim-wrap)
> -                                          rtn (cdr 
> org-export-latex-verbatim-wrap))
> +                   (org-add-props
> +                          (if org-export-latex-listings
> +                              (concat
> +                               (if lang
> +                                   (let* ((lang-sym (intern (concat ":" 
> lang)))
> +                                          (lstlang (or (plist-get 
> org-export-latex-listings-langs
> +                                                                  lang-sym)
> +                                                       lang)))
> +                                     (format "\\lstset{language=%s}\n" 
> lstlang))
> +                                 "")
> +                               "\\begin{lstlisting}\n"
> +                               rtn "\\end{lstlisting}\n")
> +                            (concat (car org-export-latex-verbatim-wrap)
> +                                    rtn (cdr 
> org-export-latex-verbatim-wrap)))
>                         '(org-protected t))
>                     "#+END_LaTeX\n\n"))
>            ((eq backend 'ascii)
> diff --git a/lisp/org-latex.el b/lisp/org-latex.el
> index fdf9ae2..f80e221 100644
> --- a/lisp/org-latex.el
> +++ b/lisp/org-latex.el
> @@ -69,6 +69,9 @@
>         org-deadline-string "\\|"
>         org-closed-string"\\)")
>    "Regexp matching special time planning keywords plus the time after it.")
> +(defvar org-export-latex-listings nil
> +  "If non-nil then source code blocks will be fontified using the
> +listings package.")
>  
>  (defvar latexp)    ; dynamically scoped from org.el
>  (defvar re-quote)  ; dynamically scoped from org.el
> @@ -297,6 +300,12 @@ Defaults to \\begin{verbatim} and \\end{verbatim}."
>    :type '(cons (string :tag "Open")
>              (string :tag "Close")))
>  
> +(defcustom org-export-latex-listings-langs
> +  '(:emacs-lisp "lisp")
> +  "Property list mapping languages to their listing language counterpart."
> +  :group 'org-export-latex
> +  :type 'plist)
> +
>  (defcustom org-export-latex-remove-from-headlines
>    '(:todo nil :priority nil :tags nil)
>    "A plist of keywords to remove from headlines. OBSOLETE.





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