;;; ob-latex.el --- org-babel functions for latex "evaluation"
-;; Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+;; Copyright (C) 2009-2012 Free Software Foundation, Inc.
;; Author: Eric Schulte
;; Keywords: literate programming, reproducible research
;; Homepage: http://orgmode.org
-;; Version: 7.01
;; This file is part of GNU Emacs.
(declare-function org-splice-latex-header "org"
(tpl def-pkg pkg snippets-p &optional extra))
(declare-function org-export-latex-fix-inputenc "org-latex" ())
-
+(defvar org-babel-tangle-lang-exts)
(add-to-list 'org-babel-tangle-lang-exts '("latex" . "tex"))
+(defvar org-format-latex-header)
+(defvar org-format-latex-header-extra)
+(defvar org-export-latex-packages-alist)
+(defvar org-export-latex-default-packages-alist)
+(defvar org-export-pdf-logfiles)
+(defvar org-latex-to-pdf-process)
+(defvar org-export-pdf-remove-logfiles)
+(defvar org-format-latex-options)
+(defvar org-export-latex-packages-alist)
+
(defvar org-babel-default-header-args:latex
'((:results . "latex") (:exports . "results"))
"Default arguments to use when evaluating a LaTeX source block.")
-(defun org-babel-expand-body:latex (body params &optional processed-params)
+(defun org-babel-expand-body:latex (body params)
"Expand BODY according to PARAMS, return the expanded body."
(mapc (lambda (pair) ;; replace variables
(setq body
(regexp-quote (format "%S" (car pair)))
(if (stringp (cdr pair))
(cdr pair) (format "%S" (cdr pair)))
- body))) (nth 1 (org-babel-process-params params)))
- body)
+ body))) (mapcar #'cdr (org-babel-get-header params :var)))
+ (org-babel-trim body))
-(defvar org-format-latex-options)
-(defvar org-export-latex-packages-alist)
(defun org-babel-execute:latex (body params)
"Execute a block of Latex code with Babel.
This function is called by `org-babel-execute-src-block'."
(setq body (org-babel-expand-body:latex body params))
(if (cdr (assoc :file params))
- (let ((out-file (cdr (assoc :file params)))
- (tex-file (make-temp-file "org-babel-latex" nil ".tex"))
- (pdfheight (cdr (assoc :pdfheight params)))
- (pdfwidth (cdr (assoc :pdfwidth params)))
- (in-buffer (not (string= "no" (cdr (assoc :buffer params)))))
- (org-export-latex-packages-alist
- (append (cdr (assoc :packages params))
- org-export-latex-packages-alist)))
+ (let* ((out-file (cdr (assoc :file params)))
+ (tex-file (org-babel-temp-file "latex-" ".tex"))
+ (border (cdr (assoc :border params)))
+ (imagemagick (cdr (assoc :imagemagick params)))
+ (im-in-options (cdr (assoc :iminoptions params)))
+ (im-out-options (cdr (assoc :imoutoptions params)))
+ (pdfpng (cdr (assoc :pdfpng params)))
+ (fit (or (cdr (assoc :fit params)) border))
+ (height (and fit (cdr (assoc :pdfheight params))))
+ (width (and fit (cdr (assoc :pdfwidth params))))
+ (headers (cdr (assoc :headers params)))
+ (in-buffer (not (string= "no" (cdr (assoc :buffer params)))))
+ (org-export-latex-packages-alist
+ (append (cdr (assoc :packages params))
+ org-export-latex-packages-alist)))
(cond
- ((string-match "\\.png$" out-file)
+ ((and (string-match "\\.png$" out-file) (not imagemagick))
(org-create-formula-image
body out-file org-format-latex-options in-buffer))
- ((string-match "\\.pdf$" out-file)
- (org-babel-latex-body-to-tex-file tex-file body pdfheight pdfwidth)
+ ((or (string-match "\\.pdf$" out-file) imagemagick)
+ (require 'org-latex)
+ (with-temp-file tex-file
+ (insert
+ (org-splice-latex-header
+ org-format-latex-header
+ (delq
+ nil
+ (mapcar
+ (lambda (el)
+ (unless (and (listp el) (string= "hyperref" (cadr el)))
+ el))
+ org-export-latex-default-packages-alist))
+ org-export-latex-packages-alist
+ org-format-latex-header-extra)
+ (if fit "\n\\usepackage[active, tightpage]{preview}\n" "")
+ (if border (format "\\setlength{\\PreviewBorder}{%s}" border) "")
+ (if height (concat "\n" (format "\\pdfpageheight %s" height)) "")
+ (if width (concat "\n" (format "\\pdfpagewidth %s" width)) "")
+ (if headers
+ (concat "\n"
+ (if (listp headers)
+ (mapconcat #'identity headers "\n")
+ headers) "\n")
+ "")
+ (if org-format-latex-header-extra
+ (concat "\n" org-format-latex-header-extra)
+ "")
+ (if fit
+ (concat "\n\\begin{document}\n\\begin{preview}\n" body
+ "\n\\end{preview}\n\\end{document}\n")
+ (concat "\n\\begin{document}\n" body "\n\\end{document}\n")))
+ (org-export-latex-fix-inputenc))
(when (file-exists-p out-file) (delete-file out-file))
- (rename-file (org-babel-latex-tex-to-pdf tex-file) out-file))
+ (let ((transient-pdf-file (org-babel-latex-tex-to-pdf tex-file)))
+ (cond
+ ((string-match "\\.pdf$" out-file)
+ (rename-file transient-pdf-file out-file))
+ (imagemagick
+ (convert-pdf
+ transient-pdf-file out-file im-in-options im-out-options)
+ (when (file-exists-p transient-pdf-file)
+ (delete-file transient-pdf-file))))))
((string-match "\\.\\([^\\.]+\\)$" out-file)
- (error "can not create %s files, please specify a .png or .pdf file"
+ (error "Can not create %s files, please specify a .png or .pdf file or try the :imagemagick header argument"
(match-string 1 out-file))))
- out-file)
+ nil) ;; signal that output has already been written to file
body))
-(defvar org-format-latex-header)
-(defvar org-format-latex-header-extra)
-(defvar org-export-latex-packages-alist)
-(defvar org-export-latex-default-packages-alist)
-(defun org-babel-latex-body-to-tex-file (tex-file body &optional height width)
- "Place the contents of BODY into TEX-FILE.
-Extracted from `org-create-formula-image' in org.el."
- (with-temp-file tex-file
- (insert (org-splice-latex-header
- org-format-latex-header
- (delq
- nil
- (mapcar
- (lambda (el) (unless (and (listp el) (string= "hyperref" (cadr el)))
- el))
- org-export-latex-default-packages-alist))
- org-export-latex-packages-alist
- org-format-latex-header-extra)
- (if height (concat "\n" (format "\\pdfpageheight %s" height)) "")
- (if width (concat "\n" (format "\\pdfpagewidth %s" width)) "")
- (if org-format-latex-header-extra
- (concat "\n" org-format-latex-header-extra)
- "")
- "\n\\begin{document}\n" body "\n\\end{document}\n")
- (org-export-latex-fix-inputenc)))
-(defvar org-export-pdf-logfiles)
-(defvar org-latex-to-pdf-process)
-(defvar org-export-pdf-remove-logfiles)
-(defun org-babel-latex-tex-to-pdf (tex-file)
- "Generate a pdf file according to the contents TEX-FILE.
+(defun convert-pdf (pdffile out-file im-in-options im-out-options)
+ "Generate a file from a pdf file using imagemagick."
+ (let ((cmd (concat "convert " im-in-options " " pdffile " "
+ im-out-options " " out-file)))
+ (message (concat "Converting pdffile file " cmd "..."))
+ (shell-command cmd)))
+
+(defun org-babel-latex-tex-to-pdf (file)
+ "Generate a pdf file according to the contents FILE.
Extracted from `org-export-as-pdf' in org-latex.el."
(let* ((wconfig (current-window-configuration))
- (default-directory (file-name-directory tex-file))
- (base (file-name-sans-extension tex-file))
+ (default-directory (file-name-directory file))
+ (base (file-name-sans-extension file))
(pdffile (concat base ".pdf"))
(cmds org-latex-to-pdf-process)
(outbuf (get-buffer-create "*Org PDF LaTeX Output*"))
- cmd)
+ output-dir cmd)
+ (with-current-buffer outbuf (erase-buffer))
+ (message (concat "Processing LaTeX file " file "..."))
+ (setq output-dir (file-name-directory file))
(if (and cmds (symbolp cmds))
- (funcall cmds tex-file)
+ (funcall cmds (shell-quote-argument file))
(while cmds
- (setq cmd (pop cmds))
- (while (string-match "%b" cmd)
- (setq cmd (replace-match
- (save-match-data
- (shell-quote-argument base))
- t t cmd)))
- (while (string-match "%s" cmd)
- (setq cmd (replace-match
- (save-match-data
- (shell-quote-argument tex-file))
- t t cmd)))
- (shell-command cmd outbuf outbuf)))
+ (setq cmd (pop cmds))
+ (while (string-match "%b" cmd)
+ (setq cmd (replace-match
+ (save-match-data
+ (shell-quote-argument base))
+ t t cmd)))
+ (while (string-match "%f" cmd)
+ (setq cmd (replace-match
+ (save-match-data
+ (shell-quote-argument file))
+ t t cmd)))
+ (while (string-match "%o" cmd)
+ (setq cmd (replace-match
+ (save-match-data
+ (shell-quote-argument output-dir))
+ t t cmd)))
+ (shell-command cmd outbuf)))
+ (message (concat "Processing LaTeX file " file "...done"))
(if (not (file-exists-p pdffile))
- (error "PDF file was not produced from %s" tex-file)
+ (error (concat "PDF file " pdffile " was not produced"))
(set-window-configuration wconfig)
(when org-export-pdf-remove-logfiles
- (dolist (ext org-export-pdf-logfiles)
- (setq tex-file (concat base "." ext))
- (and (file-exists-p tex-file) (delete-file tex-file))))
+ (dolist (ext org-export-pdf-logfiles)
+ (setq file (concat base "." ext))
+ (and (file-exists-p file) (delete-file file))))
+ (message "Exporting to PDF...done")
pdffile)))
(defun org-babel-prep-session:latex (session params)
- "Return an error because LaTeX doesn't support sesstions."
+ "Return an error because LaTeX doesn't support sessions."
(error "LaTeX does not support sessions"))
(provide 'ob-latex)
-;; arch-tag: 1f13f7e2-26de-4c24-9274-9f331d4c6ff3
+
;;; ob-latex.el ends here