emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed
blob 8943dedee91b781e4793f9a8c6889a0f0964127b 6886 bytes (raw)

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
 
;;; ob-latex.el --- org-babel functions for latex "evaluation"

;; Copyright (C) 2009, 2010  Free Software Foundation, Inc.

;; Author: Eric Schulte
;; Keywords: literate programming, reproducible research
;; Homepage: http://orgmode.org
;; Version: 7.4

;; This file is part of GNU Emacs.

;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.

;;; Commentary:

;; Org-Babel support for evaluating LaTeX source code.
;;
;; Currently on evaluation this returns raw LaTeX code, unless a :file
;; header argument is given in which case small png or pdf files will
;; be created directly form the latex source code.

;;; Code:
(require 'ob)

(declare-function org-create-formula-image "org" (string tofile options buffer))
(declare-function org-splice-latex-header "org"
		  (tpl def-pkg pkg snippets-p &optional extra))
(declare-function org-export-latex-fix-inputenc "org-latex" ())
(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)
  "Expand BODY according to PARAMS, return the expanded body."
  (mapc (lambda (pair) ;; replace variables
          (setq body
                (replace-regexp-in-string
                 (regexp-quote (format "%S" (car pair)))
                 (if (stringp (cdr pair))
                     (cdr pair) (format "%S" (cdr pair)))
                 body))) (mapcar #'cdr (org-babel-get-header params :var)))
  (org-babel-trim body))

(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 (org-babel-temp-file "latex-" ".tex"))
	     (border (cdr (assoc :border 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$" out-file)
          (org-create-formula-image
           body out-file org-format-latex-options in-buffer))
         ((string-match "\\.pdf$" out-file)
	  (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))
         ((string-match "\\.\\([^\\.]+\\)$" out-file)
          (error "can not create %s files, please specify a .png or .pdf file"
		 (match-string 1 out-file))))
        nil) ;; signal that output has already been written to file
    body))

(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 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*"))
         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 (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 "%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 (concat "PDF file " pdffile " was not produced"))
      (set-window-configuration wconfig)
      (when org-export-pdf-remove-logfiles
	(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."
  (error "LaTeX does not support sessions"))

(provide 'ob-latex)

;; arch-tag: 1f13f7e2-26de-4c24-9274-9f331d4c6ff3

;;; ob-latex.el ends here

debug log:

solving 8943ded ...
found 8943ded in https://git.savannah.gnu.org/cgit/emacs/org-mode.git

Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).