lisp/org-latex.el

   1 ;;; org-latex.el --- LaTeX exporter for org-mode
   2 ;;
   3 ;; Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
   4 ;;
   5 ;; Emacs Lisp Archive Entry
   6 ;; Filename: org-latex.el
   7 ;; Version: 6.26
   8 ;; Author: Bastien Guerry <bzg AT altern DOT org>
   9 ;; Maintainer: Carsten Dominik <carsten.dominik AT gmail DOT com>
  10 ;; Keywords: org, wp, tex
  11 ;; Description: Converts an org-mode buffer into LaTeX
  12
  13 ;; This file is part of GNU Emacs.
  14
  15 ;; GNU Emacs is free software: you can redistribute it and/or modify
  16 ;; it under the terms of the GNU General Public License as published by
  17 ;; the Free Software Foundation, either version 3 of the License, or
  18 ;; (at your option) any later version.
  19
  20 ;; GNU Emacs is distributed in the hope that it will be useful,
  21 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  22 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23 ;; GNU General Public License for more details.
  24
  25 ;; You should have received a copy of the GNU General Public License
  26 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  27
  28 ;;; Commentary:
  29 ;;
  30 ;; This library implements a LaTeX exporter for org-mode.
  31 ;;
  32 ;; It is part of Org and will be autoloaded
  33 ;;
  34 ;; The interactive functions are similar to those of the HTML exporter:
  35 ;;
  36 ;; M-x `org-export-as-latex'
  37 ;; M-x `org-export-as-pdf'
  38 ;; M-x `org-export-as-pdf-and-open'
  39 ;; M-x `org-export-as-latex-batch'
  40 ;; M-x `org-export-as-latex-to-buffer'
  41 ;; M-x `org-export-region-as-latex'
  42 ;; M-x `org-replace-region-by-latex'
  43 ;;
  44 ;;; Code:
  45
  46 (eval-when-compile
  47   (require 'cl))
  48
  49 (require 'footnote)
  50 (require 'org)
  51 (require 'org-exp)
  52
  53 ;;; Variables:
  54 (defvar org-export-latex-class nil)
  55 (defvar org-export-latex-header nil)
  56 (defvar org-export-latex-append-header nil)
  57 (defvar org-export-latex-options-plist nil)
  58 (defvar org-export-latex-todo-keywords-1 nil)
  59 (defvar org-export-latex-display-custom-times nil)
  60 (defvar org-export-latex-all-targets-re nil)
  61 (defvar org-export-latex-add-level 0)
  62 (defvar org-export-latex-sectioning "")
  63 (defvar org-export-latex-sectioning-depth 0)
  64 (defvar org-export-latex-special-keyword-regexp
  65   (concat "\\<\\(" org-scheduled-string "\\|"
  66           org-deadline-string "\\|"
  67           org-closed-string"\\)")
  68   "Regexp matching special time planning keywords plus the time after it.")
  69
  70 (defvar latexp)    ; dynamically scoped from org.el
  71 (defvar re-quote)  ; dynamically scoped from org.el
  72 (defvar commentsp) ; dynamically scoped from org.el
  73
  74 ;;; User variables:
  75
  76 (defgroup org-export-latex nil
  77   "Options for exporting Org-mode files to LaTeX."
  78   :tag "Org Export LaTeX"
  79   :group 'org-export)
  80
  81 (defcustom org-export-latex-default-class "article"
  82   "The default LaTeX class."
  83   :group 'org-export-latex
  84   :type '(string :tag "LaTeX class"))
  85
  86 (defcustom org-export-latex-classes
  87   '(("article"
  88      "\\documentclass[11pt]{article}
  89 \\usepackage[utf8]{inputenc}
  90 \\usepackage[T1]{fontenc}
  91 \\usepackage{graphicx}
  92 \\usepackage{longtable}
  93 \\usepackage{hyperref}"
  94      ("\\section{%s}" . "\\section*{%s}")
  95      ("\\subsection{%s}" . "\\subsection*{%s}")
  96      ("\\subsubsection{%s}" . "\\subsubsection*{%s}")
  97      ("\\paragraph{%s}" . "\\paragraph*{%s}")
  98      ("\\subparagraph{%s}" . "\\subparagraph*{%s}"))
  99     ("report"
 100      "\\documentclass[11pt]{report}
 101 \\usepackage[utf8]{inputenc}
 102 \\usepackage[T1]{fontenc}
 103 \\usepackage{graphicx}
 104 \\usepackage{longtable}
 105 \\usepackage{hyperref}"
 106      ("\\part{%s}" . "\\part*{%s}")
 107      ("\\chapter{%s}" . "\\chapter*{%s}")
 108      ("\\section{%s}" . "\\section*{%s}")
 109      ("\\subsection{%s}" . "\\subsection*{%s}")
 110      ("\\subsubsection{%s}" . "\\subsubsection*{%s}"))
 111     ("book"
 112      "\\documentclass[11pt]{book}
 113 \\usepackage[utf8]{inputenc}
 114 \\usepackage[T1]{fontenc}
 115 \\usepackage{graphicx}
 116 \\usepackage{longtable}
 117 \\usepackage{hyperref}"
 118      ("\\part{%s}" . "\\part*{%s}")
 119      ("\\chapter{%s}" . "\\chapter*{%s}")
 120      ("\\section{%s}" . "\\section*{%s}")
 121      ("\\subsection{%s}" . "\\subsection*{%s}")
 122      ("\\subsubsection{%s}" . "\\subsubsection*{%s}")))
 123   "Alist of LaTeX classes and associated header and structure.
 124 If #+LaTeX_CLASS is set in the buffer, use its value and the
 125 associated information.  Here is the structure of each cell:
 126
 127   \(class-name
 128     header-string
 129     (numbered-section . unnumbered-section\)
 130     ...\)
 131
 132 A %s formatter is mandatory in each section string and will be
 133 replaced by the title of the section.
 134
 135 Instead of a cons cell (numbered . unnumbered), you can also provide a list
 136 of 2-4 elements,
 137
 138   (numbered-open numbered-close)
 139
 140 or
 141
 142   (numbered-open numbered-close unnumbered-open unnumbered-close)
 143
 144 providing opening and closing strings for an environment that should
 145 represent the document section.  The opening clause should have a %s
 146 to represent the section title."
 147   :group 'org-export-latex
 148   :type '(repeat
 149           (list (string :tag "LaTeX class")
 150                 (string :tag "LaTeX header")
 151                 (repeat :tag "Levels" :inline t
 152                         (choice
 153                          (cons :tag "Heading"
 154                                (string :tag "numbered")
 155                                (string :tag "unnumbered)"))
 156                          (list :tag "Environment"
 157                                (string :tag "Opening (numbered)  ")
 158                                (string :tag "Closing (numbered)  ")
 159                                (string :tag "Opening (unnumbered)")
 160                                (string :tag "Closing (unnumbered)")))))))
 161
 162 (defcustom org-export-latex-emphasis-alist
 163   '(("*" "\\textbf{%s}" nil)
 164     ("/" "\\emph{%s}" nil)
 165     ("_" "\\underline{%s}" nil)
 166     ("+" "\\texttt{%s}" nil)
 167     ("=" "\\verb" t)
 168     ("~" "\\verb" t))
 169   "Alist of LaTeX expressions to convert emphasis fontifiers.
 170 Each element of the list is a list of three elements.
 171 The first element is the character used as a marker for fontification.
 172 The second element is a formatting string to wrap fontified text with.
 173 If it is \"\\verb\", Org will automatically select a deimiter
 174 character that is not in the string.
 175 The third element decides whether to protect converted text from other
 176 conversions."
 177   :group 'org-export-latex
 178   :type 'alist)
 179
 180 (defcustom org-export-latex-title-command "\\maketitle"
 181   "The command used to insert the title just after \\begin{document}.
 182 If this string contains the formatting specification \"%s\" then
 183 it will be used as a formatting string, passing the title as an
 184 argument."
 185   :group 'org-export-latex
 186   :type 'string)
 187
 188 (defcustom org-export-latex-import-inbuffer-stuff nil
 189   "Non-nil means define TeX macros for Org's inbuffer definitions.
 190 For example \orgTITLE for #+TITLE."
 191   :group 'org-export-latex
 192   :type 'boolean)
 193
 194 (defcustom org-export-latex-date-format
 195   "%d %B %Y"
 196   "Format string for \\date{...}."
 197   :group 'org-export-latex
 198   :type 'string)
 199
 200 (defcustom org-export-latex-timestamp-markup "\\textit{%s}"
 201   "A printf format string to be applied to time stamps."
 202   :group 'org-export-latex
 203   :type 'string)
 204
 205 (defcustom org-export-latex-timestamp-keyword-markup "\\texttt{%s}"
 206   "A printf format string to be applied to time stamps."
 207   :group 'org-export-latex
 208   :type 'string)
 209
 210 (defcustom org-export-latex-tables-verbatim nil
 211   "When non-nil, tables are exported verbatim."
 212   :group 'org-export-latex
 213   :type 'boolean)
 214
 215 (defcustom org-export-latex-tables-column-borders nil
 216   "When non-nil, grouping columns can cause outer vertical lines in tables.
 217 When nil, grouping causes only separation lines between groups."
 218   :group 'org-export-latex
 219   :type 'boolean)
 220
 221 (defcustom org-export-latex-packages-alist nil
 222   "Alist of packages to be inserted in the header.
 223 Each cell is of the forma \( \"option\" . \"package\" \)."
 224   :group 'org-export-latex
 225   :type 'alist)
 226
 227 (defcustom org-export-latex-low-levels 'itemize
 228   "How to convert sections below the current level of sectioning.
 229 This is specified by the `org-export-headline-levels' option or the
 230 value of \"H:\" in Org's #+OPTION line.
 231
 232 This can be either nil (skip the sections), `description', `itemize',
 233 or `enumerate' (convert the sections as the corresponding list type), or
 234 a string to be used instead of \\section{%s}.  In this latter case,
 235 the %s stands here for the inserted headline and is mandatory."
 236   :group 'org-export-latex
 237   :type '(choice (const :tag "Ignore" nil)
 238                  (symbol :tag "Convert as descriptive list" description)
 239                  (symbol :tag "Convert as itemized list" itemize)
 240                  (symbol :tag "Convert as enumerated list" enumerate)
 241                  (string :tag "Use a section string" :value "\\subparagraph{%s}")))
 242
 243 (defcustom org-export-latex-list-parameters
 244   '(:cbon "\\texttt{[X]}" :cboff "\\texttt{[ ]}")
 245   "Parameters for the LaTeX list exporter.
 246 These parameters will be passed on to `org-list-to-latex', which in turn
 247 will pass them (combined with the LaTeX default list parameters) to
 248 `org-list-to-generic'."
 249   :group 'org-export-latex
 250   :type 'plist)
 251
 252 (defcustom org-export-latex-remove-from-headlines
 253   '(:todo nil :priority nil :tags nil)
 254   "A plist of keywords to remove from headlines. OBSOLETE.
 255 Non-nil means remove this keyword type from the headline.
 256
 257 Don't remove the keys, just change their values.
 258
 259 Obsolete, this variable is no longer used.  Use the separate
 260 variables `org-export-with-todo-keywords', `org-export-with-priority',
 261 and `org-export-with-tags' instead."
 262   :type 'plist
 263   :group 'org-export-latex)
 264
 265 (defcustom org-export-latex-image-default-option "width=10em"
 266   "Default option for images."
 267   :group 'org-export-latex
 268   :type 'string)
 269
 270 (defcustom org-export-latex-inline-image-extensions
 271   '("pdf" "jpeg" "jpg" "png")
 272   "Extensions of image files that can be inlined into LaTeX.
 273 Note that this depends on the way the LaTeX file is processed.
 274 The default setting (pdf and jpg) assumes that pdflatex is doing the
 275 processing.  If you are using latex and dvips or something similar,
 276 only postscript files can be included."
 277   :group 'org-export-html
 278   :type '(repeat (string :tag "Extension")))
 279
 280 (defcustom org-export-latex-coding-system nil
 281   "Coding system for the exported LaTex file."
 282   :group 'org-export-latex
 283   :type 'coding-system)
 284
 285 (defgroup org-export-pdf nil
 286   "Options for exporting Org-mode files to PDF, via LaTeX."
 287   :tag "Org Export LaTeX"
 288   :group 'org-export-latex
 289   :group 'org-export)
 290
 291 (defcustom org-export-pdf-remove-logfiles t
 292   "Non-nil means, remove the logfiles produced by PDF production.
 293 These are the .aux, .log, .out, and .toc files."
 294   :group 'org-export-latex
 295   :type 'boolean)
 296
 297 ;;; Autoload functions:
 298
 299 ;;;###autoload
 300 (defun org-export-as-latex-batch ()
 301   "Call `org-export-as-latex', may be used in batch processing.
 302 For example:
 303
 304 emacs   --batch
 305         --load=$HOME/lib/emacs/org.el
 306         --eval \"(setq org-export-headline-levels 2)\"
 307         --visit=MyFile --funcall org-export-as-latex-batch"
 308   (org-export-as-latex org-export-headline-levels 'hidden))
 309
 310 ;;;###autoload
 311 (defun org-export-as-latex-to-buffer (arg)
 312   "Call `org-export-as-latex` with output to a temporary buffer.
 313 No file is created.  The prefix ARG is passed through to `org-export-as-latex'."
 314   (interactive "P")
 315   (org-export-as-latex arg nil nil "*Org LaTeX Export*")
 316   (switch-to-buffer-other-window "*Org LaTeX Export*"))
 317
 318 ;;;###autoload
 319 (defun org-replace-region-by-latex (beg end)
 320   "Replace the region from BEG to END with its LaTeX export.
 321 It assumes the region has `org-mode' syntax, and then convert it to
 322 LaTeX.  This can be used in any buffer.  For example, you could
 323 write an itemized list in `org-mode' syntax in an LaTeX buffer and
 324 then use this command to convert it."
 325   (interactive "r")
 326   (let (reg latex buf)
 327     (save-window-excursion
 328       (if (org-mode-p)
 329           (setq latex (org-export-region-as-latex
 330                        beg end t 'string))
 331         (setq reg (buffer-substring beg end)
 332               buf (get-buffer-create "*Org tmp*"))
 333         (save-excursion
 334           (set-buffer buf)
 335           (erase-buffer)
 336           (insert reg)
 337           (org-mode)
 338           (setq latex (org-export-region-as-latex
 339                        (point-min) (point-max) t 'string)))
 340         (kill-buffer buf)))
 341     (delete-region beg end)
 342     (insert latex)))
 343
 344 ;;;###autoload
 345 (defun org-export-region-as-latex (beg end &optional body-only buffer)
 346   "Convert region from BEG to END in `org-mode' buffer to LaTeX.
 347 If prefix arg BODY-ONLY is set, omit file header, footer, and table of
 348 contents, and only produce the region of converted text, useful for
 349 cut-and-paste operations.
 350 If BUFFER is a buffer or a string, use/create that buffer as a target
 351 of the converted LaTeX.  If BUFFER is the symbol `string', return the
 352 produced LaTeX as a string and leave not buffer behind.  For example,
 353 a Lisp program could call this function in the following way:
 354
 355   (setq latex (org-export-region-as-latex beg end t 'string))
 356
 357 When called interactively, the output buffer is selected, and shown
 358 in a window.  A non-interactive call will only retunr the buffer."
 359   (interactive "r\nP")
 360   (when (interactive-p)
 361     (setq buffer "*Org LaTeX Export*"))
 362   (let ((transient-mark-mode t) (zmacs-regions t)
 363         rtn)
 364     (goto-char end)
 365     (set-mark (point)) ;; to activate the region
 366     (goto-char beg)
 367     (setq rtn (org-export-as-latex
 368                nil nil nil
 369                buffer body-only))
 370     (if (fboundp 'deactivate-mark) (deactivate-mark))
 371     (if (and (interactive-p) (bufferp rtn))
 372         (switch-to-buffer-other-window rtn)
 373       rtn)))
 374
 375 ;;;###autoload
 376 (defun org-export-as-latex (arg &optional hidden ext-plist
 377                                 to-buffer body-only pub-dir)
 378   "Export current buffer to a LaTeX file.
 379 If there is an active region, export only the region.  The prefix
 380 ARG specifies how many levels of the outline should become
 381 headlines.  The default is 3.  Lower levels will be exported
 382 depending on `org-export-latex-low-levels'.  The default is to
 383 convert them as description lists.  When HIDDEN is non-nil, don't
 384 display the LaTeX buffer.  EXT-PLIST is a property list with
 385 external parameters overriding org-mode's default settings, but
 386 still inferior to file-local settings.  When TO-BUFFER is
 387 non-nil, create a buffer with that name and export to that
 388 buffer.  If TO-BUFFER is the symbol `string', don't leave any
 389 buffer behind but just return the resulting LaTeX as a string.
 390 When BODY-ONLY is set, don't produce the file header and footer,
 391 simply return the content of \begin{document}...\end{document},
 392 without even the \begin{document} and \end{document} commands.
 393 when PUB-DIR is set, use this as the publishing directory."
 394   (interactive "P")
 395   ;; Make sure we have a file name when we need it.
 396   (when (and (not (or to-buffer body-only))
 397              (not buffer-file-name))
 398     (if (buffer-base-buffer)
 399         (org-set-local 'buffer-file-name
 400                        (with-current-buffer (buffer-base-buffer)
 401                          buffer-file-name))
 402       (error "Need a file name to be able to export")))
 403
 404   (message "Exporting to LaTeX...")
 405   (org-unmodified
 406    (remove-text-properties (point-min) (point-max)
 407                            '(:org-license-to-kill nil)))
 408   (org-update-radio-target-regexp)
 409   (org-export-latex-set-initial-vars ext-plist arg)
 410   (let* ((wcf (current-window-configuration))
 411          (opt-plist org-export-latex-options-plist)
 412          (region-p (org-region-active-p))
 413          (rbeg (and region-p (region-beginning)))
 414          (rend (and region-p (region-end)))
 415          (subtree-p
 416           (when region-p
 417             (save-excursion
 418               (goto-char rbeg)
 419               (and (org-at-heading-p)
 420                    (>= (org-end-of-subtree t t) rend)))))
 421          (opt-plist (setq org-export-opt-plist
 422                           (if subtree-p
 423                               (org-export-add-subtree-options opt-plist rbeg)
 424                             opt-plist)))
 425          ;; Make sure the variable contains the updated values.
 426          (org-export-latex-options-plist opt-plist)
 427          (title (or (and subtree-p (org-export-get-title-from-subtree))
 428                     (plist-get opt-plist :title)
 429                     (and (not
 430                           (plist-get opt-plist :skip-before-1st-heading))
 431                          (org-export-grab-title-from-buffer))
 432                     (file-name-sans-extension
 433                      (file-name-nondirectory buffer-file-name))))
 434          (filename (concat (file-name-as-directory
 435                             (or pub-dir
 436                                 (org-export-directory :LaTeX ext-plist)))
 437                            (file-name-sans-extension
 438                             (or (and subtree-p
 439                                      (org-entry-get rbeg "EXPORT_FILE_NAME" t))
 440                                 (file-name-nondirectory ;sans-extension
 441                                  buffer-file-name)))
 442                            ".tex"))
 443          (filename (if (equal (file-truename filename)
 444                               (file-truename buffer-file-name))
 445                        (concat filename ".tex")
 446                      filename))
 447          (buffer (if to-buffer
 448                      (cond
 449                       ((eq to-buffer 'string) (get-buffer-create
 450                                                "*Org LaTeX Export*"))
 451                       (t (get-buffer-create to-buffer)))
 452                    (find-file-noselect filename)))
 453          (odd org-odd-levels-only)
 454          (header (org-export-latex-make-header title opt-plist))
 455          (skip (cond (subtree-p nil)
 456                      (region-p nil)
 457                      (t (plist-get opt-plist :skip-before-1st-heading))))
 458          (text (plist-get opt-plist :text))
 459          (first-lines (if skip "" (org-export-latex-first-lines
 460                                    opt-plist rbeg)))
 461          (coding-system (and (boundp 'buffer-file-coding-system)
 462                              buffer-file-coding-system))
 463          (coding-system-for-write (or org-export-latex-coding-system
 464                                       coding-system))
 465          (save-buffer-coding-system (or org-export-latex-coding-system
 466                                         coding-system))
 467          (region (buffer-substring
 468                   (if region-p (region-beginning) (point-min))
 469                   (if region-p (region-end) (point-max))))
 470          (string-for-export
 471           (org-export-preprocess-string
 472            region
 473            :emph-multiline t
 474            :for-LaTeX t
 475            :comments nil
 476            :tags (plist-get opt-plist :tags)
 477            :priority (plist-get opt-plist :priority)
 478            :footnotes (plist-get opt-plist :footnotes)
 479            :timestamps (plist-get opt-plist :timestamps)
 480            :todo-keywords (plist-get opt-plist :todo-keywords)
 481            :add-text (if (eq to-buffer 'string) nil text)
 482            :skip-before-1st-heading skip
 483            :select-tags (plist-get opt-plist :select-tags)
 484            :exclude-tags (plist-get opt-plist :exclude-tags)
 485            :LaTeX-fragments nil)))
 486
 487     (set-buffer buffer)
 488     (erase-buffer)
 489
 490     (and (fboundp 'set-buffer-file-coding-system)
 491          (set-buffer-file-coding-system coding-system-for-write))
 492
 493     ;; insert the header and initial document commands
 494     (unless (or (eq to-buffer 'string) body-only)
 495       (insert header))
 496
 497     ;; insert text found in #+TEXT
 498     (when (and text (not (eq to-buffer 'string)))
 499       (insert (org-export-latex-content
 500                text '(lists tables fixed-width keywords))
 501                "\n\n"))
 502
 503     ;; insert lines before the first headline
 504     (unless (or skip (eq to-buffer 'string))
 505       (insert first-lines))
 506
 507     ;; export the content of headlines
 508     (org-export-latex-global
 509      (with-temp-buffer
 510        (insert string-for-export)
 511        (goto-char (point-min))
 512        (when (re-search-forward "^\\(\\*+\\) " nil t)
 513          (let* ((asters (length (match-string 1)))
 514                 (level (if odd (- asters 2) (- asters 1))))
 515            (setq org-export-latex-add-level
 516                  (if odd (1- (/ (1+ asters) 2)) (1- asters)))
 517            (org-export-latex-parse-global level odd)))))
 518
 519     ;; finalization
 520     (unless body-only (insert "\n\\end{document}"))
 521     (or to-buffer (save-buffer))
 522     (goto-char (point-min))
 523     (message "Exporting to LaTeX...done")
 524     (prog1
 525         (if (eq to-buffer 'string)
 526             (prog1 (buffer-substring (point-min) (point-max))
 527               (kill-buffer (current-buffer)))
 528           (current-buffer))
 529       (set-window-configuration wcf))))
 530
 531 ;;;###autoload
 532 (defun org-export-as-pdf (arg &optional hidden ext-plist
 533                               to-buffer body-only pub-dir)
 534   "Export as LaTeX, then process through to PDF."
 535   (interactive "P")
 536   (message "Exporting to PDF...")
 537   (let* ((wconfig (current-window-configuration))
 538          (lbuf (org-export-as-latex arg hidden ext-plist
 539                                     to-buffer body-only pub-dir))
 540          (file (buffer-file-name lbuf))
 541          (base (file-name-sans-extension (buffer-file-name lbuf)))
 542          (pdffile (concat base ".pdf")))
 543     (and (file-exists-p pdffile) (delete-file pdffile))
 544     (message "Processing LaTeX file...")
 545     (shell-command (format "pdflatex -interaction nonstopmode %s"
 546                            (shell-quote-argument file)))
 547     (shell-command (format "pdflatex -interaction nonstopmode %s"
 548                            (shell-quote-argument file)))
 549     (message "Processing LaTeX file...done")
 550     (if (not (file-exists-p pdffile))
 551         (error "PDF file was not produced")
 552       (set-window-configuration wconfig)
 553       (when org-export-pdf-remove-logfiles
 554         (dolist (ext '("aux" "log" "out" "toc"))
 555           (setq file (concat base "." ext))
 556           (and (file-exists-p file) (delete-file file))))
 557       (message "Exporting to PDF...done")
 558       pdffile)))
 559
 560 ;;;###autoload
 561 (defun org-export-as-pdf-and-open (arg)
 562   "Export as LaTeX, then process through to PDF, and open."
 563   (interactive "P")
 564   (let ((pdffile (org-export-as-pdf arg)))
 565     (if pdffile
 566         (org-open-file pdffile)
 567       (error "PDF file was not produced"))))
 568
 569 ;;; Parsing functions:
 570
 571 (defun org-export-latex-parse-global (level odd)
 572   "Parse the current buffer recursively, starting at LEVEL.
 573 If ODD is non-nil, assume the buffer only contains odd sections.
 574 Return a list reflecting the document structure."
 575   (save-excursion
 576     (goto-char (point-min))
 577     (let* ((cnt 0) output
 578            (depth org-export-latex-sectioning-depth))
 579       (while (re-search-forward
 580               (concat "^\\(\\(?:\\*\\)\\{"
 581                       (number-to-string (+ (if odd 2 1) level))
 582                       "\\}\\) \\(.*\\)$")
 583               ;; make sure that there is no upper heading
 584               (when (> level 0)
 585                 (save-excursion
 586                   (save-match-data
 587                     (re-search-forward
 588                      (concat "^\\(\\(?:\\*\\)\\{"
 589                              (number-to-string level)
 590                              "\\}\\) \\(.*\\)$") nil t)))) t)
 591         (setq cnt (1+ cnt))
 592         (let* ((pos (match-beginning 0))
 593                (heading (match-string 2))
 594                (nlevel (if odd (/ (+ 3 level) 2) (1+ level))))
 595           (save-excursion
 596             (narrow-to-region
 597              (point)
 598              (save-match-data
 599                (if (re-search-forward
 600                     (concat "^\\(\\(?:\\*\\)\\{"
 601                             (number-to-string (+ (if odd 2 1) level))
 602                             "\\}\\) \\(.*\\)$") nil t)
 603                    (match-beginning 0)
 604                  (point-max))))
 605             (goto-char (point-min))
 606             (setq output
 607                   (append output
 608                           (list
 609                            (list
 610                             `(pos . ,pos)
 611                             `(level . ,nlevel)
 612                             `(occur . ,cnt)
 613                             `(heading . ,heading)
 614                             `(content . ,(org-export-latex-parse-content))
 615                             `(subcontent . ,(org-export-latex-parse-subcontent
 616                                              level odd)))))))
 617           (widen)))
 618       (list output))))
 619
 620 (defun org-export-latex-parse-content ()
 621   "Extract the content of a section."
 622   (let ((beg (point))
 623         (end (if (re-search-forward "^\\(\\*\\)+ .*$" nil t)
 624                  (progn (beginning-of-line) (point))
 625                (point-max))))
 626     (buffer-substring beg end)))
 627
 628 (defun org-export-latex-parse-subcontent (level odd)
 629   "Extract the subcontent of a section at LEVEL.
 630 If ODD Is non-nil, assume subcontent only contains odd sections."
 631   (if (not (re-search-forward
 632             (concat "^\\(\\(?:\\*\\)\\{"
 633                     (number-to-string (+ (if odd 4 2) level))
 634                     "\\}\\) \\(.*\\)$")
 635             nil t))
 636       nil ; subcontent is nil
 637     (org-export-latex-parse-global (+ (if odd 2 1) level) odd)))
 638
 639 ;;; Rendering functions:
 640 (defun org-export-latex-global (content)
 641   "Export CONTENT to LaTeX.
 642 CONTENT is an element of the list produced by
 643 `org-export-latex-parse-global'."
 644   (if (eq (car content) 'subcontent)
 645       (mapc 'org-export-latex-sub (cdr content))
 646     (org-export-latex-sub (car content))))
 647
 648 (defun org-export-latex-sub (subcontent)
 649   "Export the list SUBCONTENT to LaTeX.
 650 SUBCONTENT is an alist containing information about the headline
 651 and its content."
 652   (let ((num (plist-get org-export-latex-options-plist :section-numbers)))
 653     (mapc (lambda(x) (org-export-latex-subcontent x num)) subcontent)))
 654
 655 (defun org-export-latex-subcontent (subcontent num)
 656   "Export each cell of SUBCONTENT to LaTeX.
 657 If NUM, export sections as numerical sections."
 658   (let* ((heading (org-export-latex-fontify-headline
 659                    (cdr (assoc 'heading subcontent))))
 660          (level (- (cdr (assoc 'level subcontent))
 661                    org-export-latex-add-level))
 662          (occur (number-to-string (cdr (assoc 'occur subcontent))))
 663          (content (cdr (assoc 'content subcontent)))
 664          (subcontent (cadr (assoc 'subcontent subcontent)))
 665          (label (org-get-text-property-any 0 'target heading))
 666          (label-list (cons label (cdr (assoc label
 667                                              org-export-target-aliases)))))
 668     (cond
 669      ;; Normal conversion
 670      ((<= level org-export-latex-sectioning-depth)
 671       (let* ((sec (nth (1- level) org-export-latex-sectioning))
 672              start end)
 673         (if (consp (cdr sec))
 674             (setq start (nth (if num 0 2) sec)
 675                   end (nth (if num 1 3) sec))
 676           (setq start (if num (car sec) (cdr sec))))
 677         (insert (format start heading) "\n")
 678         (when label
 679           (insert (mapconcat (lambda (l) (format "\\label{%s}" l))
 680                              label-list "\n") "\n"))
 681         (insert (org-export-latex-content content))
 682         (cond ((stringp subcontent) (insert subcontent))
 683               ((listp subcontent) (org-export-latex-sub subcontent)))
 684         (if end (insert end "\n"))))
 685      ;; At a level under the hl option: we can drop this subsection
 686      ((> level org-export-latex-sectioning-depth)
 687       (cond ((eq org-export-latex-low-levels 'description)
 688              (if (string-match "% ends low level$"
 689                                (buffer-substring (point-at-bol 0) (point)))
 690                  (delete-region (point-at-bol 0) (point))
 691                (insert "\\begin{description}\n"))
 692              (insert (format "\n\\item[%s]%s~\n\n"
 693                              heading
 694                              (if label (format "\\label{%s}" label) "")))
 695              (insert (org-export-latex-content content))
 696              (cond ((stringp subcontent) (insert subcontent))
 697                    ((listp subcontent) (org-export-latex-sub subcontent)))
 698              (insert "\\end{description} % ends low level\n"))
 699             ((memq org-export-latex-low-levels '(itemize enumerate))
 700              (if (string-match "% ends low level$"
 701                                (buffer-substring (point-at-bol 0) (point)))
 702                  (delete-region (point-at-bol 0) (point))
 703                (insert (format "\\begin{%s}\n"
 704                                (symbol-name org-export-latex-low-levels))))
 705              (insert (format "\n\\item %s\\\\\n%s\n"
 706                              heading
 707                              (if label (format "\\label{%s}" label) "")))
 708              (insert (org-export-latex-content content))
 709              (cond ((stringp subcontent) (insert subcontent))
 710                    ((listp subcontent) (org-export-latex-sub subcontent)))
 711              (insert (format "\\end{%s} %% ends low level\n"
 712                              (symbol-name org-export-latex-low-levels))))
 713             ((stringp org-export-latex-low-levels)
 714              (insert (format org-export-latex-low-levels heading) "\n")
 715              (when label (insert (format "\\label{%s}\n" label)))
 716              (insert (org-export-latex-content content))
 717              (cond ((stringp subcontent) (insert subcontent))
 718                    ((listp subcontent) (org-export-latex-sub subcontent)))))))))
 719
 720 ;;; Exporting internals:
 721 (defun org-export-latex-set-initial-vars (ext-plist level)
 722   "Store org local variables required for LaTeX export.
 723 EXT-PLIST is an optional additional plist.
 724 LEVEL indicates the default depth for export."
 725   (setq org-export-latex-todo-keywords-1 org-todo-keywords-1
 726         org-export-latex-display-custom-times org-display-custom-times
 727         org-export-latex-all-targets-re
 728         (org-make-target-link-regexp (org-all-targets))
 729         org-export-latex-options-plist
 730         (org-combine-plists (org-default-export-plist) ext-plist
 731                             (org-infile-export-plist))
 732         org-export-latex-class
 733         (or (and (org-region-active-p)
 734                  (save-excursion
 735                    (goto-char (region-beginning))
 736                    (and (looking-at org-complex-heading-regexp)
 737                         (org-entry-get nil "LaTeX_CLASS" 'selective))))
 738             (save-excursion
 739               (save-restriction
 740                 (widen)
 741                 (goto-char (point-min))
 742                 (and (re-search-forward "^#\\+LaTeX_CLASS:[ \t]*\\([a-zA-Z]+\\)" nil t)
 743                      (match-string 1))))
 744             org-export-latex-default-class)
 745         org-export-latex-class
 746         (or (car (assoc org-export-latex-class org-export-latex-classes))
 747             (error "No definition for class `%s' in `org-export-latex-classes'"
 748                    org-export-latex-class))
 749         org-export-latex-header
 750         (cadr (assoc org-export-latex-class org-export-latex-classes))
 751         org-export-latex-sectioning
 752         (cddr (assoc org-export-latex-class org-export-latex-classes))
 753         org-export-latex-sectioning-depth
 754         (or level
 755             (let ((hl-levels
 756                    (plist-get org-export-latex-options-plist :headline-levels))
 757                   (sec-depth (length org-export-latex-sectioning)))
 758               (if (> hl-levels sec-depth) sec-depth hl-levels)))))
 759
 760 (defun org-export-latex-make-header (title opt-plist)
 761   "Make the LaTeX header and return it as a string.
 762 TITLE is the current title from the buffer or region.
 763 OPT-PLIST is the options plist for current buffer."
 764   (let ((toc (plist-get opt-plist :table-of-contents))
 765         (author (plist-get opt-plist :author)))
 766     (concat
 767      (if (plist-get opt-plist :time-stamp-file)
 768          (format-time-string "%% Created %Y-%m-%d %a %H:%M\n"))
 769      ;; insert LaTeX custom header
 770      (org-export-apply-macros-in-string org-export-latex-header)
 771      "\n"
 772      ;; insert information on LaTeX packages
 773      (when org-export-latex-packages-alist
 774        (mapconcat (lambda(p)
 775                     (if (equal "" (car p))
 776                         (format "\\usepackage{%s}" (cadr p))
 777                       (format "\\usepackage[%s]{%s}"
 778                               (car p) (cadr p))))
 779                   org-export-latex-packages-alist "\n"))
 780      ;; insert additional commands in the header
 781      (org-export-apply-macros-in-string
 782       (plist-get opt-plist :latex-header-extra))
 783      (org-export-apply-macros-in-string org-export-latex-append-header)
 784      ;; insert the title
 785      (format
 786       "\n\n\\title{%s}\n"
 787       ;; convert the title
 788       (org-export-latex-content
 789        title '(lists tables fixed-width keywords)))
 790      ;; insert author info
 791      (if (plist-get opt-plist :author-info)
 792          (format "\\author{%s}\n"
 793                  (or author user-full-name))
 794        (format "%%\\author{%s}\n"
 795                (or author user-full-name)))
 796      ;; insert the date
 797      (format "\\date{%s}\n"
 798              (format-time-string
 799               (or (plist-get opt-plist :date)
 800                   org-export-latex-date-format)))
 801      ;; beginning of the document
 802      "\n\\begin{document}\n\n"
 803      ;; insert the title command
 804      (if (string-match "%s" org-export-latex-title-command)
 805          (format org-export-latex-title-command title)
 806        org-export-latex-title-command)
 807      "\n\n"
 808      ;; table of contents
 809      (when (and org-export-with-toc
 810                 (plist-get opt-plist :section-numbers))
 811        (cond ((numberp toc)
 812               (format "\\setcounter{tocdepth}{%s}\n\\tableofcontents\n\\vspace*{1cm}\n"
 813                       (min toc (plist-get opt-plist :headline-levels))))
 814              (toc (format "\\setcounter{tocdepth}{%s}\n\\tableofcontents\n\\vspace*{1cm}\n"
 815                           (plist-get opt-plist :headline-levels))))))))
 816
 817 (defun org-export-latex-first-lines (opt-plist &optional beg)
 818   "Export the first lines before first headline.
 819 If BEG is non-nil, the is the beginning of he region."
 820   (save-excursion
 821     (goto-char (or beg (point-min)))
 822     (if (org-at-heading-p) (beginning-of-line 2))
 823     (let* ((pt (point))
 824            (end (if (re-search-forward "^\\*+ " nil t)
 825                     (goto-char (match-beginning 0))
 826                   (goto-char (point-max)))))
 827       (prog1
 828           (org-export-latex-content
 829            (org-export-preprocess-string
 830             (buffer-substring pt end)
 831             :for-LaTeX t
 832             :emph-multiline t
 833             :add-text nil
 834             :comments nil
 835             :skip-before-1st-heading nil
 836             :LaTeX-fragments nil
 837             :timestamps (plist-get opt-plist :timestamps)
 838             :footnotes (plist-get opt-plist :footnotes)))
 839         (org-unmodified
 840          (add-text-properties pt (max pt (1- end))
 841                               '(:org-license-to-kill t)))))))
 842
 843 (defvar org-export-latex-header-defs nil
 844   "The header definitions that might be used in the LaTeX body.")
 845 (defvar org-export-latex-header-defs-re nil
 846   "The header definitions that might be used in the LaTeX body.")
 847
 848 (defun org-export-latex-content (content &optional exclude-list)
 849   "Convert CONTENT string to LaTeX.
 850 Don't perform conversions that are in EXCLUDE-LIST.  Recognized
 851 conversion types are: quotation-marks, emphasis, sub-superscript,
 852 links, keywords, lists, tables, fixed-width"
 853   (with-temp-buffer
 854    (insert content)
 855    (unless (memq 'timestamps exclude-list)
 856      (org-export-latex-time-stamps))
 857    (unless (memq 'quotation-marks exclude-list)
 858      (org-export-latex-quotation-marks))
 859    (unless (memq 'emphasis exclude-list)
 860      (when (plist-get org-export-latex-options-plist :emphasize)
 861        (org-export-latex-fontify)))
 862    (unless (memq 'sub-superscript exclude-list)
 863      (org-export-latex-special-chars
 864       (plist-get org-export-latex-options-plist :sub-superscript)))
 865    (unless (memq 'links exclude-list)
 866      (org-export-latex-links))
 867    (unless (memq 'keywords exclude-list)
 868      (org-export-latex-keywords))
 869    (unless (memq 'lists exclude-list)
 870      (org-export-latex-lists))
 871    (unless (memq 'tables exclude-list)
 872      (org-export-latex-tables
 873       (plist-get org-export-latex-options-plist :tables)))
 874    (unless (memq 'fixed-width exclude-list)
 875      (org-export-latex-fixed-width
 876       (plist-get org-export-latex-options-plist :fixed-width)))
 877    ;; return string
 878    (buffer-substring (point-min) (point-max))))
 879
 880 (defun org-export-latex-protect-string (s)
 881   "Add the org-protected property to string S."
 882   (add-text-properties 0 (length s) '(org-protected t) s) s)
 883
 884 (defun org-export-latex-protect-char-in-string (char-list string)
 885   "Add org-protected text-property to char from CHAR-LIST in STRING."
 886   (with-temp-buffer
 887     (save-match-data
 888       (insert string)
 889       (goto-char (point-min))
 890       (while (re-search-forward (regexp-opt char-list) nil t)
 891         (add-text-properties (match-beginning 0)
 892                              (match-end 0) '(org-protected t)))
 893       (buffer-string))))
 894
 895 (defun org-export-latex-keywords-maybe (&optional remove-list)
 896   "Maybe remove keywords depending on rules in REMOVE-LIST."
 897   (goto-char (point-min))
 898   (let ((re-todo (mapconcat 'identity org-export-latex-todo-keywords-1 "\\|"))
 899         (case-fold-search nil))
 900     ;; convert TODO keywords
 901     (when (re-search-forward (concat "^\\(" re-todo "\\)") nil t)
 902       (if (plist-get remove-list :todo)
 903           (replace-match "")
 904         (replace-match (format "\\textbf{%s}" (match-string 1)) t t)))
 905     ;; convert priority string
 906     (when (re-search-forward "\\[\\\\#.\\]" nil t)
 907       (if (plist-get remove-list :priority)
 908           (replace-match "")
 909         (replace-match (format "\\textbf{%s}" (match-string 0)) t t)))
 910     ;; convert tags
 911     (when (re-search-forward "\\(:[a-zA-Z0-9_@]+\\)+:" nil t)
 912       (if (or (not org-export-with-tags)
 913               (plist-get remove-list :tags))
 914           (replace-match "")
 915         (replace-match
 916          (org-export-latex-protect-string
 917           (format "\\textbf{%s}"
 918                   (save-match-data
 919                     (replace-regexp-in-string
 920                      "_" "\\\\_" (match-string 0)))))
 921          t t)))))
 922
 923 (defun org-export-latex-fontify-headline (string)
 924   "Fontify special words in STRING."
 925   (with-temp-buffer
 926     ;; FIXME: org-inside-LaTeX-fragment-p doesn't work when the $...$ is at
 927     ;; the beginning of the buffer - inserting "\n" is safe here though.
 928     (insert "\n" string)
 929     (goto-char (point-min))
 930     (when (plist-get org-export-latex-options-plist :emphasize)
 931       (org-export-latex-fontify))
 932     (org-export-latex-keywords-maybe)
 933     (org-export-latex-special-chars
 934      (plist-get org-export-latex-options-plist :sub-superscript))
 935     (org-export-latex-links)
 936     (org-trim (buffer-string))))
 937
 938 (defun org-export-latex-time-stamps ()
 939   "Format time stamps."
 940   (goto-char (point-min))
 941   (let ((org-display-custom-times org-export-latex-display-custom-times))
 942     (while (re-search-forward org-ts-regexp-both nil t)
 943       (org-if-unprotected-at (1- (point))
 944        (replace-match
 945         (org-export-latex-protect-string
 946          (format org-export-latex-timestamp-markup
 947                  (substring (org-translate-time (match-string 0)) 1 -1)))
 948         t t)))))
 949
 950 (defun org-export-latex-quotation-marks ()
 951   "Export quotation marks depending on language conventions."
 952   (let* ((lang (plist-get org-export-latex-options-plist :language))
 953          (quote-rpl (if (equal lang "fr")
 954                         '(("\\(\\s-\\)\"" "«~")
 955                           ("\\(\\S-\\)\"" "~»")
 956                           ("\\(\\s-\\)'" "`"))
 957                       '(("\\(\\s-\\)\"" "``")
 958                         ("\\(\\S-\\)\"" "''")
 959                         ("\\(\\s-\\)'" "`")))))
 960     (mapc (lambda(l) (goto-char (point-min))
 961             (while (re-search-forward (car l) nil t)
 962               (let ((rpl (concat (match-string 1) (cadr l))))
 963                 (org-export-latex-protect-string rpl)
 964                 (org-if-unprotected-1
 965                  (replace-match rpl t t))))) quote-rpl)))
 966
 967 (defun org-export-latex-special-chars (sub-superscript)
 968   "Export special characters to LaTeX.
 969 If SUB-SUPERSCRIPT is non-nil, convert \\ and ^.
 970 See the `org-export-latex.el' code for a complete conversion table."
 971   (goto-char (point-min))
 972   (mapc (lambda(c)
 973           (goto-char (point-min))
 974           (while (re-search-forward c nil t)
 975             ;; Put the point where to check for org-protected
 976             (unless (get-text-property (match-beginning 2) 'org-protected)
 977               (cond ((member (match-string 2) '("\\$" "$"))
 978                      (if (equal (match-string 2) "\\$")
 979                          nil
 980                        (replace-match "\\$" t t)))
 981                     ((member (match-string 2) '("&" "%" "#"))
 982                      (if (equal (match-string 1) "\\")
 983                          (replace-match (match-string 2) t t)
 984                        (replace-match (concat (match-string 1) "\\"
 985                                               (match-string 2)) t t)))
 986                     ((equal (match-string 2) "...")
 987                      (replace-match
 988                       (concat (match-string 1)
 989                               (org-export-latex-protect-string "\\ldots{}")) t t))
 990                     ((equal (match-string 2) "~")
 991                      (cond ((equal (match-string 1) "\\") nil)
 992                            ((eq 'org-link (get-text-property 0 'face (match-string 2)))
 993                             (replace-match (concat (match-string 1) "\\~") t t))
 994                            (t (replace-match
 995                                (org-export-latex-protect-string
 996                                 (concat (match-string 1) "\\~{}")) t t))))
 997                     ((member (match-string 2) '("{" "}"))
 998                      (unless (save-match-data (org-inside-latex-math-p))
 999                        (if (equal (match-string 1) "\\")
1000                            (replace-match (match-string 2) t t)
1001                          (replace-match (concat (match-string 1) "\\"
1002                                                 (match-string 2)) t t)))))
1003               (unless (save-match-data (org-inside-latex-math-p))
1004                 (cond ((equal (match-string 2) "\\")
1005                        (replace-match (or (save-match-data
1006                                             (org-export-latex-treat-backslash-char
1007                                              (match-string 1)
1008                                              (or (match-string 3) "")))
1009                                           "") t t))
1010                       ((member (match-string 2) '("_" "^"))
1011                        (replace-match (or (save-match-data
1012                                             (org-export-latex-treat-sub-super-char
1013                                              sub-superscript
1014                                              (match-string 2)
1015                                              (match-string 1)
1016                                              (match-string 3))) "") t t)))))))
1017         '(;"^\\([^\n$]*?\\|^\\)\\(\\\\?\\$\\)\\([^\n$]*\\)$"
1018           "\\(\\(\\\\?\\$\\)\\)"
1019           "\\([a-za-z0-9]+\\|[ \t\n]\\|\\b\\|\\\\\\)\\(_\\|\\^\\)\\({[^{}]+}\\|[a-za-z0-9]+\\|[ \t\n]\\|[:punct:]\\|{[a-za-z0-9]+}\\|([a-za-z0-9]+)\\)"
1020           "\\(.\\|^\\)\\(\\\\\\)\\([ \t\n]\\|[a-zA-Z&#%{}\"]+\\)"
1021           "\\(.\\|^\\)\\(&\\)"
1022           "\\(.\\|^\\)\\(#\\)"
1023           "\\(.\\|^\\)\\(%\\)"
1024           "\\(.\\|^\\)\\({\\)"
1025           "\\(.\\|^\\)\\(}\\)"
1026           "\\(.\\|^\\)\\(~\\)"
1027           "\\(.\\|^\\)\\(\\.\\.\\.\\)"
1028           ;; (?\< . "\\textless{}")
1029           ;; (?\> . "\\textgreater{}")
1030           )))
1031
1032 (defun org-inside-latex-math-p ()
1033   (get-text-property (point) 'org-latex-math))
1034
1035 (defun org-export-latex-treat-sub-super-char
1036   (subsup char string-before string-after)
1037   "Convert the \"_\" and \"^\" characters to LaTeX.
1038 SUBSUP corresponds to the ^: option in the #+OPTIONS line.
1039 Convert CHAR depending on STRING-BEFORE and STRING-AFTER."
1040   (cond ((equal string-before "\\")
1041          (concat string-before char string-after))
1042         ;; this is part of a math formula
1043         ((and (string-match "\\S-+" string-before)
1044               (string-match "\\S-+" string-after))
1045          (cond ((eq 'org-link (get-text-property 0 'face char))
1046                 (concat string-before "\\" char string-after))
1047                ((save-match-data (org-inside-latex-math-p))
1048                 (if subsup
1049                     (cond ((eq 1 (length string-after))
1050                            (concat string-before char string-after))
1051                           ((string-match "[({]?\\([^)}]+\\)[)}]?" string-after)
1052                            (format "%s%s{%s}" string-before char
1053                                    (match-string 1 string-after))))))
1054                ((and (> (length string-after) 1)
1055                      (or (eq subsup t)
1056                          (and (equal subsup '{}) (eq (string-to-char string-after) ?\{)))
1057                      (string-match "[({]?\\([^)}]+\\)[)}]?" string-after))
1058                 (org-export-latex-protect-string
1059                  (format "%s$%s{%s}$" string-before char
1060                          (if (and (> (match-end 1) (1+ (match-beginning 1)))
1061                                   (not (equal (substring string-after 0 2) "{\\")))
1062                              (concat "\\mathrm{" (match-string 1 string-after) "}")
1063                            (match-string 1 string-after)))))
1064                ((eq subsup t) (concat string-before "$" char string-after "$"))
1065                (t (org-export-latex-protect-string
1066                    (concat string-before "\\" char "{}" string-after)))))
1067         (t (org-export-latex-protect-string
1068             (concat string-before "\\" char "{}" string-after)))))
1069
1070 (defun org-export-latex-treat-backslash-char (string-before string-after)
1071   "Convert the \"$\" special character to LaTeX.
1072 The conversion is made depending of STRING-BEFORE and STRING-AFTER."
1073   (cond ((member (list string-after) org-html-entities)
1074          ;; backslash is part of a special entity (like "\alpha")
1075          (concat string-before "$\\"
1076                  (or (cdar (member (list string-after) org-html-entities))
1077                      string-after) "$"))
1078         ((and (not (string-match "^[ \n\t]" string-after))
1079               (not (string-match "[ \t]\\'\\|^" string-before)))
1080          ;; backslash is inside a word
1081          (org-export-latex-protect-string
1082           (concat string-before "\\textbackslash{}" string-after)))
1083         ((not (or (equal string-after "")
1084                   (string-match "^[ \t\n]" string-after)))
1085          ;; backslash might escape a character (like \#) or a user TeX
1086          ;; macro (like \setcounter)
1087          (org-export-latex-protect-string
1088           (concat string-before "\\" string-after)))
1089         ((and (string-match "^[ \t\n]" string-after)
1090               (string-match "[ \t\n]\\'" string-before))
1091          ;; backslash is alone, convert it to $\backslash$
1092          (org-export-latex-protect-string
1093           (concat string-before "\\textbackslash{}" string-after)))
1094         (t (org-export-latex-protect-string
1095             (concat string-before "\\textbackslash{}" string-after)))))
1096
1097 (defun org-export-latex-keywords ()
1098   "Convert special keywords to LaTeX."
1099   (goto-char (point-min))
1100   (while (re-search-forward org-export-latex-special-keyword-regexp nil t)
1101     (replace-match (format org-export-latex-timestamp-keyword-markup
1102                            (match-string 0)) t t)
1103     (save-excursion
1104       (beginning-of-line 1)
1105       (unless (looking-at ".*\\\\newline[ \t]*$")
1106         (end-of-line 1)
1107         (insert "\\newline")))))
1108
1109 (defun org-export-latex-fixed-width (opt)
1110   "When OPT is non-nil convert fixed-width sections to LaTeX."
1111   (goto-char (point-min))
1112   (while (re-search-forward "^[ \t]*:\\([ \t]\\|$\\)" nil t)
1113     (if opt
1114         (progn (goto-char (match-beginning 0))
1115                (insert "\\begin{verbatim}\n")
1116                (while (looking-at "^\\([ \t]*\\):\\(\\([ \t]\\|$\\).*\\)$")
1117                  (replace-match (concat (match-string 1)
1118                                         (match-string 2)) t t)
1119                  (forward-line))
1120                (insert "\\end{verbatim}\n\n"))
1121       (progn (goto-char (match-beginning 0))
1122              (while (looking-at "^\\([ \t]*\\):\\(\\([ \t]\\|$\\).*\\)$")
1123                (replace-match (concat "%" (match-string 1)
1124                                       (match-string 2)) t t)
1125                (forward-line))))))
1126
1127
1128 (defvar org-table-last-alignment) ; defined in org-table.el
1129 (declare-function orgtbl-to-latex "org-table" (table params) t)
1130 (defun org-export-latex-tables (insert)
1131   "Convert tables to LaTeX and INSERT it."
1132   (goto-char (point-min))
1133   (while (re-search-forward "^\\([ \t]*\\)|" nil t)
1134     ;; FIXME really need to save-excursion?
1135     (save-excursion (org-table-align))
1136     (let* ((beg (org-table-begin))
1137            (end (org-table-end))
1138            (raw-table (buffer-substring beg end))
1139            fnum fields line lines olines gr colgropen line-fmt align
1140            caption label attr floatp longtblp)
1141       (if org-export-latex-tables-verbatim
1142           (let* ((tbl (concat "\\begin{verbatim}\n" raw-table
1143                               "\\end{verbatim}\n")))
1144             (apply 'delete-region (list beg end))
1145             (insert (org-export-latex-protect-string tbl)))
1146         (progn
1147           (setq caption (org-find-text-property-in-string
1148                          'org-caption raw-table)
1149                 attr (org-find-text-property-in-string
1150                       'org-attributes raw-table)
1151                 label (org-find-text-property-in-string
1152                        'org-label raw-table)
1153                 longtblp (and attr (stringp attr)
1154                               (string-match "\\<longtable\\>" attr))
1155                 align (and attr (stringp attr)
1156                            (string-match "\\<align=\\([^ \t\n\r,]+\\)" attr)
1157                            (match-string 1 attr))
1158                 floatp (or caption label))
1159           (setq lines (org-split-string raw-table "\n"))
1160           (apply 'delete-region (list beg end))
1161           (when org-export-table-remove-special-lines
1162             (setq lines (org-table-clean-before-export lines 'maybe-quoted)))
1163           ;; make a formatting string to reflect aligment
1164           (setq olines lines)
1165           (while (and (not line-fmt) (setq line (pop olines)))
1166             (unless (string-match "^[ \t]*|-" line)
1167               (setq fields (org-split-string line "[ \t]*|[ \t]*"))
1168               (setq fnum (make-vector (length fields) 0))
1169               (setq line-fmt
1170                     (mapconcat
1171                      (lambda (x)
1172                        (setq gr (pop org-table-colgroup-info))
1173                        (format "%s%%s%s"
1174                                (cond ((eq gr :start)
1175                                       (prog1 (if colgropen "|" "|")
1176                                         (setq colgropen t)))
1177                                      ((eq gr :startend)
1178                                       (prog1 (if colgropen "|" "|")
1179                                         (setq colgropen nil)))
1180                                      (t ""))
1181                                (if (memq gr '(:end :startend))
1182                                    (progn (setq colgropen nil) "|")
1183                                  "")))
1184                      fnum ""))))
1185           ;; fix double || in line-fmt
1186           (setq line-fmt (replace-regexp-in-string "||" "|" line-fmt))
1187           ;; maybe remove the first and last "|"
1188           (when (and (not org-export-latex-tables-column-borders)
1189                      (string-match "^\\(|\\)?\\(.+\\)|$" line-fmt))
1190             (setq line-fmt (match-string 2 line-fmt)))
1191           ;; format alignment
1192           (unless align
1193             (setq align (apply 'format
1194                                (cons line-fmt
1195                                      (mapcar (lambda (x) (if x "r" "l"))
1196                                              org-table-last-alignment)))))
1197           ;; prepare the table to send to orgtbl-to-latex
1198           (setq lines
1199                 (mapcar
1200                  (lambda(elem)
1201                    (or (and (string-match "[ \t]*|-+" elem) 'hline)
1202                        (org-split-string (org-trim elem) "|")))
1203                  lines))
1204           (when insert
1205             (insert (org-export-latex-protect-string
1206                      (concat
1207                       (if longtblp
1208                           (concat "\\begin{longtable}{" align "}\n")
1209                         (if floatp "\\begin{table}[htb]\n"))
1210                       (if (or floatp longtblp)
1211                           (format
1212                            "\\caption{%s%s}"
1213                            (if label (concat "\\\label{" label "}") "")
1214                            (or caption "")))
1215                       (if longtblp "\\\\\n" "\n")
1216                       (if (not longtblp) "\\begin{center}\n")
1217                       (if (not longtblp) (concat "\\begin{tabular}{" align "}\n"))
1218                       (orgtbl-to-latex
1219                        lines
1220                        `(:tstart nil :tend nil
1221                                  :hlend ,(if longtblp
1222                                              (format "\\\\
1223 \\hline
1224 \\endhead
1225 \\hline\\multicolumn{%d}{r}{Continued on next page}\\
1226 \\endfoot
1227 \\endlastfoot" (length org-table-last-alignment))
1228                                            nil)))
1229                       (if (not longtblp) (concat "\n\\end{tabular}"))
1230                       (if longtblp "\n" "\n\\end{center}\n")
1231                       (if longtblp
1232                           "\\end{longtable}"
1233                         (if floatp "\\end{table}"))))
1234                     "\n\n")))))))
1235
1236 (defun org-export-latex-fontify ()
1237   "Convert fontification to LaTeX."
1238   (goto-char (point-min))
1239   (while (re-search-forward org-emph-re nil t)
1240     ;; The match goes one char after the *string*
1241     (let ((emph (assoc (match-string 3)
1242                        org-export-latex-emphasis-alist))
1243           (beg (match-beginning 0))
1244           (end (match-end 0))
1245           rpl)
1246       (unless emph
1247         (message "`org-export-latex-emphasis-alist' has no entry for formatting triggered by \"%s\""
1248                  (match-string 3)))
1249       (unless (or (get-text-property (1- (point)) 'org-protected)
1250                   (save-excursion
1251                     (goto-char (match-beginning 1))
1252                     (save-match-data
1253                       (and (org-at-table-p)
1254                            (string-match
1255                             "[|\n]" (buffer-substring beg end))))))
1256         (setq rpl (concat (match-string 1)
1257                           (org-export-latex-emph-format (cadr emph)
1258                                                         (match-string 4))
1259                           (match-string 5)))
1260         (if (caddr emph)
1261             (setq rpl (org-export-latex-protect-string rpl)))
1262         (replace-match rpl t t)))
1263     (backward-char)))
1264
1265 (defun org-export-latex-emph-format (format string)
1266   "Format an emphasis string and handle the \\verb special case."
1267   (when (equal format "\\verb")
1268     (save-match-data
1269       (let ((ll "~,./?;':\"|!@#%^&-_=+abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ<>()[]{}"))
1270         (catch 'exit
1271           (loop for i from 0 to (1- (length ll)) do
1272                 (if (not (string-match (regexp-quote (substring ll i (1+ i)))
1273                                        string))
1274                     (progn
1275                       (setq format (concat "\\verb" (substring ll i (1+ i))
1276                                            "%s" (substring ll i (1+ i))))
1277                       (throw 'exit nil))))))))
1278   (setq string (org-export-latex-protect-string
1279                 (format format string))))
1280
1281 (defun org-export-latex-links ()
1282   ;; Make sure to use the LaTeX hyperref and graphicx package
1283   ;; or send some warnings.
1284   "Convert links to LaTeX."
1285   (goto-char (point-min))
1286   (while (re-search-forward org-bracket-link-analytic-regexp++ nil t)
1287     (org-if-unprotected
1288      (goto-char (match-beginning 0))
1289      (let* ((re-radio org-export-latex-all-targets-re)
1290             (remove (list (match-beginning 0) (match-end 0)))
1291             (raw-path (org-extract-attributes (match-string 3)))
1292             (full-raw-path (concat (match-string 1) raw-path))
1293             (desc (match-string 5))
1294             (type (or (match-string 2)
1295                       (if (or (file-name-absolute-p raw-path)
1296                               (string-match "^\\.\\.?/" raw-path))
1297                           "file")))
1298             (coderefp (equal type "coderef"))
1299             (caption (org-find-text-property-in-string 'org-caption raw-path))
1300             (attr (org-find-text-property-in-string 'org-attributes raw-path))
1301             (label (org-find-text-property-in-string 'org-label raw-path))
1302             (floatp (or label caption))
1303             imgp radiop
1304             ;; define the path of the link
1305             (path (cond
1306                    ((member type '("coderef"))
1307                     raw-path)
1308                    ((member type '("http" "https" "ftp"))
1309                     (concat type ":" raw-path))
1310                    ((and re-radio (string-match re-radio raw-path))
1311                     (setq radiop t))
1312                    ((equal type "mailto")
1313                     (concat type ":" raw-path))
1314                    ((equal type "file")
1315                     (if (and (org-file-image-p
1316                               (expand-file-name
1317                                raw-path)
1318                               org-export-latex-inline-image-extensions)
1319                              (equal desc full-raw-path))
1320                         (setq imgp t)
1321                       (progn (when (string-match "\\(.+\\)::.+" raw-path)
1322                                (setq raw-path (match-string 1 raw-path)))
1323                              (if (file-exists-p raw-path)
1324                                  (concat type "://" (expand-file-name raw-path))
1325                                (concat type "://" (org-export-directory
1326                                                    :LaTeX org-export-latex-options-plist)
1327                                        raw-path))))))))
1328        ;; process with link inserting
1329        (apply 'delete-region remove)
1330        (cond ((and imgp (plist-get org-export-latex-options-plist :inline-images))
1331               (insert
1332                (concat
1333                 (if floatp "\\begin{figure}[htb]\n")
1334                 (format "\\centerline{\\includegraphics[%s]{%s}}\n"
1335                         (or attr org-export-latex-image-default-option)
1336                         (if (file-name-absolute-p raw-path)
1337                             (expand-file-name raw-path)
1338                           raw-path))
1339                 (if floatp
1340                     (format "\\caption{%s%s}\n"
1341                             (if label (concat "\\label{" label "}") "")
1342                             (or caption "")))
1343                 (if floatp "\\end{figure}\n"))))
1344              (coderefp
1345               (insert (format
1346                        (org-export-get-coderef-format path desc)
1347                        (cdr (assoc path org-export-code-refs)))))
1348              (radiop (insert (format "\\hyperref[%s]{%s}"
1349                                      (org-solidify-link-text raw-path) desc)))
1350              ((not type)
1351               (insert (format "\\hyperref[%s]{%s}"
1352                               (org-solidify-link-text raw-path) desc)))
1353              (path (insert (format "\\href{%s}{%s}" path desc)))
1354              (t (insert "\\texttt{" desc "}")))))))
1355
1356 (defvar org-latex-entities)   ; defined below
1357 (defvar org-latex-entities-regexp)   ; defined below
1358
1359 (defun org-export-latex-preprocess (parameters)
1360   "Clean stuff in the LaTeX export."
1361   ;; Preserve line breaks
1362   (goto-char (point-min))
1363   (while (re-search-forward "\\\\\\\\" nil t)
1364     (add-text-properties (match-beginning 0) (match-end 0)
1365                          '(org-protected t)))
1366
1367   ;; Preserve latex environments
1368   (goto-char (point-min))
1369   (while (re-search-forward "^[ \t]*\\\\begin{\\([a-zA-Z]+\\)}" nil t)
1370     (let* ((start (progn (beginning-of-line) (point)))
1371            (end (or (and (re-search-forward
1372                           (concat "^[ \t]*\\\\end{" (match-string 1) "}") nil t)
1373                          (point-at-eol))
1374                     (point-max))))
1375       (add-text-properties start end '(org-protected t))))
1376
1377   ;; Preserve math snippets
1378
1379   (let* ((matchers (plist-get org-format-latex-options :matchers))
1380          (re-list org-latex-regexps)
1381          beg end re e m n block off)
1382     ;; Check the different regular expressions
1383     (while (setq e (pop re-list))
1384       (setq m (car e) re (nth 1 e) n (nth 2 e)
1385             block (if (nth 3 e) "\n\n" ""))
1386       (setq off (if (member m '("$" "$1")) 1 0))
1387       (when (and (member m matchers) (not (equal m "begin")))
1388         (goto-char (point-min))
1389         (while (re-search-forward re nil t)
1390           (setq beg (+ (match-beginning 0) off) end (- (match-end 0) 0))
1391           (add-text-properties beg end '(org-protected t org-latex-math t))))))
1392
1393   ;; Convert LaTeX to \LaTeX{}
1394   (goto-char (point-min))
1395   (let ((case-fold-search nil))
1396     (while (re-search-forward "\\([^+_]\\)LaTeX" nil t)
1397       (org-if-unprotected
1398        (replace-match (org-export-latex-protect-string
1399                        (concat (match-string 1) "\\LaTeX{}")) t t))))
1400
1401   ;; Convert blockquotes
1402   (goto-char (point-min))
1403   (while (search-forward "ORG-BLOCKQUOTE-START" nil t)
1404     (replace-match "\\begin{quote}" t t))
1405   (goto-char (point-min))
1406   (while (search-forward "ORG-BLOCKQUOTE-END" nil t)
1407     (replace-match "\\end{quote}" t t))
1408
1409   ;; Convert verse
1410   (goto-char (point-min))
1411   (while (search-forward "ORG-VERSE-START" nil t)
1412     (replace-match "\\begin{verse}" t t)
1413     (beginning-of-line 2)
1414     (while (and (not (looking-at "[ \t]*ORG-VERSE-END.*")) (not (eobp)))
1415       (when (looking-at "\\([ \t]+\\)\\([^ \t\n]\\)")
1416         (goto-char (match-end 1))
1417         (replace-match
1418          (org-export-latex-protect-string
1419           (concat "\\hspace*{1cm}" (match-string 2))) t t)
1420         (beginning-of-line 1))
1421       (unless (looking-at ".*?[^ \t\n].*?\\\\\\\\[ \t]*$")
1422         (end-of-line 1)
1423         (insert "\\\\"))
1424       (beginning-of-line 2))
1425     (and (looking-at "[ \t]*ORG-VERSE-END.*")
1426          (replace-match "\\end{verse}" t t)))
1427
1428   ;; Convert center
1429   (goto-char (point-min))
1430   (while (search-forward "ORG-CENTER-START" nil t)
1431     (replace-match "\\begin{center}" t t))
1432   (goto-char (point-min))
1433   (while (search-forward "ORG-CENTER-END" nil t)
1434     (replace-match "\\end{center}" t t))
1435
1436   ;; Convert horizontal rules
1437   (goto-char (point-min))
1438   (while (re-search-forward "^----+.$" nil t)
1439     (org-if-unprotected
1440      (replace-match (org-export-latex-protect-string "\\hrule") t t)))
1441
1442   ;; Protect LaTeX commands like \command[...]{...} or \command{...}
1443   (let ((re (concat "\\\\[a-zA-Z]+\\(?:"
1444                     "\\[.*\\]"
1445                     "\\)?"
1446                     (org-create-multibrace-regexp "{" "}" 3))))
1447     (while (re-search-forward re nil t)
1448       (add-text-properties (match-beginning 0) (match-end 0)
1449                            '(org-protected t))))
1450
1451   ;; Protect LaTeX entities
1452   (goto-char (point-min))
1453   (while (re-search-forward org-latex-entities-regexp nil t)
1454     (add-text-properties (match-beginning 0) (match-end 0)
1455                          '(org-protected t)))
1456
1457   ;; Replace radio links
1458   (goto-char (point-min))
1459   (while (re-search-forward
1460           (concat "<<<?" org-export-latex-all-targets-re
1461                   ">>>?\\((INVISIBLE)\\)?") nil t)
1462     (org-if-unprotected
1463      (replace-match
1464       (org-export-latex-protect-string
1465        (format "\\label{%s}%s" (save-match-data (org-solidify-link-text
1466                                                  (match-string 1)))
1467                (if (match-string 2) "" (match-string 1)))) t t)))
1468
1469   ;; Delete @<...> constructs
1470   ;; Thanks to Daniel Clemente for this regexp
1471   (goto-char (point-min))
1472   (while (re-search-forward "@<\\(?:[^\"\n]\\|\".*\"\\)*?>" nil t)
1473     (org-if-unprotected
1474      (replace-match "")))
1475
1476   ;; When converting to LaTeX, replace footnotes
1477   ;; FIXME: don't protect footnotes from conversion
1478   (when (plist-get org-export-latex-options-plist :footnotes)
1479     (goto-char (point-min))
1480     (while (re-search-forward "\\[\\([0-9]+\\)\\]" nil t)
1481       (org-if-unprotected
1482        (when (save-match-data
1483                (save-excursion (beginning-of-line)
1484                                (looking-at "[^:|#]")))
1485          (let ((foot-beg (match-beginning 0))
1486                (foot-end (match-end 0))
1487                (foot-prefix (match-string 0))
1488                footnote footnote-rpl)
1489            (save-excursion
1490              (if (not (re-search-forward (concat "^" (regexp-quote foot-prefix))
1491                                          nil t))
1492                  (replace-match "$^{\\1}$")
1493                (replace-match "")
1494                (let ((end (save-excursion
1495                             (if (re-search-forward "^$\\|^#.*$\\|\\[[0-9]+\\]" nil t)
1496                                 (match-beginning 0) (point-max)))))
1497                  (setq footnote (concat (org-trim (buffer-substring (point) end))
1498                                         " ")) ; prevent last } being part of a link
1499                  (delete-region (point) end))
1500                (goto-char foot-beg)
1501                (delete-region foot-beg foot-end)
1502                (unless (null footnote)
1503                  (setq footnote-rpl (format "\\footnote{%s}" footnote))
1504                  (add-text-properties 0 10 '(org-protected t) footnote-rpl)
1505                  (add-text-properties (1- (length footnote-rpl))
1506                                       (length footnote-rpl)
1507                                       '(org-protected t) footnote-rpl)
1508                  (insert footnote-rpl)))
1509              )))))
1510
1511     ;; Remove footnote section tag for LaTeX
1512     (goto-char (point-min))
1513     (while (re-search-forward
1514             (concat "^" footnote-section-tag-regexp) nil t)
1515       (org-if-unprotected
1516        (replace-match "")))))
1517
1518 ;;; List handling:
1519
1520 (defun org-export-latex-lists ()
1521   "Convert plain text lists in current buffer into LaTeX lists."
1522   (goto-char (point-min))
1523   (while (re-search-forward org-list-beginning-re nil t)
1524     (org-if-unprotected
1525      (beginning-of-line)
1526      (insert (org-list-to-latex (org-list-parse-list t)
1527                                 org-export-latex-list-parameters))
1528      "\n")))
1529
1530 (defconst org-latex-entities
1531  '("\\!"
1532    "\\'"
1533    "\\+"
1534    "\\,"
1535    "\\-"
1536    "\\:"
1537    "\\;"
1538    "\\<"
1539    "\\="
1540    "\\>"
1541    "\\Huge"
1542    "\\LARGE"
1543    "\\Large"
1544    "\\Styles"
1545    "\\\\"
1546    "\\`"
1547    "\\addcontentsline"
1548    "\\address"
1549    "\\addtocontents"
1550    "\\addtocounter"
1551    "\\addtolength"
1552    "\\addvspace"
1553    "\\alph"
1554    "\\appendix"
1555    "\\arabic"
1556    "\\author"
1557    "\\begin{array}"
1558    "\\begin{center}"
1559    "\\begin{description}"
1560    "\\begin{enumerate}"
1561    "\\begin{eqnarray}"
1562    "\\begin{equation}"
1563    "\\begin{figure}"
1564    "\\begin{flushleft}"
1565    "\\begin{flushright}"
1566    "\\begin{itemize}"
1567    "\\begin{list}"
1568    "\\begin{minipage}"
1569    "\\begin{picture}"
1570    "\\begin{quotation}"
1571    "\\begin{quote}"
1572    "\\begin{tabbing}"
1573    "\\begin{table}"
1574    "\\begin{tabular}"
1575    "\\begin{thebibliography}"
1576    "\\begin{theorem}"
1577    "\\begin{titlepage}"
1578    "\\begin{verbatim}"
1579    "\\begin{verse}"
1580    "\\bf"
1581    "\\bf"
1582    "\\bibitem"
1583    "\\bigskip"
1584    "\\cdots"
1585    "\\centering"
1586    "\\circle"
1587    "\\cite"
1588    "\\cleardoublepage"
1589    "\\clearpage"
1590    "\\cline"
1591    "\\closing"
1592    "\\dashbox"
1593    "\\date"
1594    "\\ddots"
1595    "\\dotfill"
1596    "\\em"
1597    "\\fbox"
1598    "\\flushbottom"
1599    "\\fnsymbol"
1600    "\\footnote"
1601    "\\footnotemark"
1602    "\\footnotesize"
1603    "\\footnotetext"
1604    "\\frac"
1605    "\\frame"
1606    "\\framebox"
1607    "\\hfill"
1608    "\\hline"
1609    "\\hrulespace"
1610    "\\hspace"
1611    "\\huge"
1612    "\\hyphenation"
1613    "\\include"
1614    "\\includeonly"
1615    "\\indent"
1616    "\\input"
1617    "\\it"
1618    "\\kill"
1619    "\\label"
1620    "\\large"
1621    "\\ldots"
1622    "\\line"
1623    "\\linebreak"
1624    "\\linethickness"
1625    "\\listoffigures"
1626    "\\listoftables"
1627    "\\location"
1628    "\\makebox"
1629    "\\maketitle"
1630    "\\mark"
1631    "\\mbox"
1632    "\\medskip"
1633    "\\multicolumn"
1634    "\\multiput"
1635    "\\newcommand"
1636    "\\newcounter"
1637    "\\newenvironment"
1638    "\\newfont"
1639    "\\newlength"
1640    "\\newline"
1641    "\\newpage"
1642    "\\newsavebox"
1643    "\\newtheorem"
1644    "\\nocite"
1645    "\\nofiles"
1646    "\\noindent"
1647    "\\nolinebreak"
1648    "\\nopagebreak"
1649    "\\normalsize"
1650    "\\onecolumn"
1651    "\\opening"
1652    "\\oval"
1653    "\\overbrace"
1654    "\\overline"
1655    "\\pagebreak"
1656    "\\pagenumbering"
1657    "\\pageref"
1658    "\\pagestyle"
1659    "\\par"
1660    "\\parbox"
1661    "\\put"
1662    "\\raggedbottom"
1663    "\\raggedleft"
1664    "\\raggedright"
1665    "\\raisebox"
1666    "\\ref"
1667    "\\rm"
1668    "\\roman"
1669    "\\rule"
1670    "\\savebox"
1671    "\\sc"
1672    "\\scriptsize"
1673    "\\setcounter"
1674    "\\setlength"
1675    "\\settowidth"
1676    "\\sf"
1677    "\\shortstack"
1678    "\\signature"
1679    "\\sl"
1680    "\\small"
1681    "\\smallskip"
1682    "\\sqrt"
1683    "\\tableofcontents"
1684    "\\telephone"
1685    "\\thanks"
1686    "\\thispagestyle"
1687    "\\tiny"
1688    "\\title"
1689    "\\tt"
1690    "\\twocolumn"
1691    "\\typein"
1692    "\\typeout"
1693    "\\underbrace"
1694    "\\underline"
1695    "\\usebox"
1696    "\\usecounter"
1697    "\\value"
1698    "\\vdots"
1699    "\\vector"
1700    "\\verb"
1701    "\\vfill"
1702    "\\vline"
1703    "\\vspace")
1704  "A list of LaTeX commands to be protected when performing conversion.")
1705
1706 (defconst org-latex-entities-regexp
1707   (let (names rest)
1708     (dolist (x org-latex-entities)
1709       (if (string-match "[a-z][A-Z]$" x)
1710           (push x names)
1711         (push x rest)))
1712     (concat "\\(" (regexp-opt (nreverse names)) "\\>\\)"
1713             "\\|\\(" (regexp-opt (nreverse rest)) "\\)")))
1714
1715 (provide 'org-export-latex)
1716 (provide 'org-latex)
1717
1718 ;; arch-tag: 23c2b87d-da04-4c2d-ad2d-1eb6487bc3ad
1719
1720 ;;; org-latex.el ends here