From 72a8165649cbc37de8909b1ed0758d96c1072b93 Mon Sep 17 00:00:00 2001 From: Carsten Dominik Date: Wed, 22 Aug 2007 11:32:47 +0000 Subject: [PATCH] New file --- lisp/textmodes/org-export-latex.el | 1212 ++++++++++++++++++++++++++++ 1 file changed, 1212 insertions(+) create mode 100644 lisp/textmodes/org-export-latex.el diff --git a/lisp/textmodes/org-export-latex.el b/lisp/textmodes/org-export-latex.el new file mode 100644 index 00000000000..1c326ffa207 --- /dev/null +++ b/lisp/textmodes/org-export-latex.el @@ -0,0 +1,1212 @@ +;;; org-export-latex.el --- LaTeX exporter for Org-mode +;; Copyright (C) 2007 Free Software Foundation, Inc. +;; +;; Author: Bastien Guerry +;; Version: $Id: org-export-latex.el,v 0.26a 2007/08/21 14:46:58 guerry Exp guerry $ +;; Keywords: org organizer latex export convert +;; X-URL: +;; +;; This file is part of GNU Emacs. +;; +;; This program 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 2, or (at your option) +;; any later version. +;; +;; This program 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 this program; if not, write to the Free Software +;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +;;; Commentary: + +;; This library is a LaTeX exporter for org-mode. +;; +;; Put this file into your load-path and the following into your ~/.emacs: +;; (require 'org-export-latex) +;; +;; The interactive functions are similar to those of the HTML exporter: +;; +;; M-x `org-export-as-latex' +;; M-x `org-export-as-latex-batch' +;; M-x `org-export-as-latex-to-buffer' +;; M-x `org-export-region-as-latex' +;; M-x `org-replace-region-by-latex' + +;;; History: +;; +;; I started this piece of code in may 2007. Special thanks to Carsten +;; Dominik for helping me on this. +;; + +;;; Code: + +(require 'org) +(require 'footnote) + +(defvar org-latex-options-plist nil) +(defvar org-latex-todo-keywords-1 nil) +(defvar org-latex-all-targets-regexp nil) +(defvar org-latex-add-level 0) +(defvar org-latex-sectioning-depth 0) + +(defvar org-latex-special-string-regexps + '(org-ts-regexp + org-scheduled-string + org-deadline-string + org-clock-string) + "A list of regexps to convert as special keywords.") + +(defcustom org-export-latex-sectioning-alist + '((1 "\\section{%s}" "\\section*{%s}") + (2 "\\subsection{%s}" "\\subsection*{%s}") + (3 "\\subsubsection{%s}" "\\subsubsection*{%s}") + (4 "\\paragraph{%s}" "\\paragraph*{%s}") + (5 "\\subparagraph{%s}" "\\subparagraph*{%s}")) + "Alist of LaTeX commands for inserting sections. +Here is the structure of each cell: + + \(level unnumbered-section numbered-section\) + +The %s formatter will be replaced by the title of the section." + :group 'org-export-latex + :type 'alist) + +(defcustom org-export-latex-emphasis-alist + '(("*" "\\textbf{%s}") + ("/" "\\emph{%s}") + ("_" "\\underline{%s}") + ("+" "\\texttt{%s}") + ("=" "\\texttt{%s}")) + "Alist of LaTeX expressions to convert emphasis fontifiers." + :group 'org-export-latex + :type 'alist) + +(defcustom org-export-latex-preamble + "\\documentclass[11pt,a4paper]{article} +\\usepackage[utf8]{inputenc} +\\usepackage[T1]{fontenc} +\\usepackage{hyperref}" + "Preamble to be inserted at the very beginning of the LaTeX export." + :group 'org-export-latex + :type 'string) + +(defcustom org-export-latex-date-format nil + "Format string for \\date{...}." + :group 'org-export-latex + :type 'string) + +(defcustom org-export-latex-packages-alist nil + "Alist of packages to be inserted in the preamble. +Each cell is of the forma \( option . package \). + +For example: + +\(setq org-export-latex-packages-alist + '((\"french\" \"babel\"))" + :group 'org-export-latex + :type 'alist) + +(defcustom org-export-latex-low-levels 'description + "Choice for converting sections that are below the current +admitted level of sectioning. This can be either nil (ignore the +sections), 'description (convert them as description lists) or a +string to be used instead of \\section{%s} (a %s for inserted the +headline is mandatory)." + :group 'org-export-latex + :type '(choice (const :tag "Ignore" nil) + (symbol :tag "Convert as descriptive list" description) + (string :tag "Use a section string" :value "\\subparagraph{%s}"))) + +(defcustom org-export-latex-remove-from-headines + '(:todo t :priority t :tags t) + "A plist of keywords to remove from headlines. +Non-nil means remove this keyword type from the headline. + +Don't remove the keys, just change their values." + :type 'plist + :group 'org-export-latex) + +(defcustom org-export-latex-quotation-marks-convention "en" + "Convention for conversion of the quotation marks. +This value is overriden by any infile language setup." + :group 'org-export-latex + :type '(choice (string :tag "english" "en") + (string :tag "french" "fr"))) + +(defcustom org-export-latex-image-default-option "width=10em" + "Default option for images." + :group 'org-export-latex + :type '(string)) + +(defcustom org-export-latex-coding-system nil + "Coding system for the exported LaTex file." + :group 'org-export-latex + :type 'coding-system) + +;; FIXME Do we want this one? +;; (defun org-export-as-latex-and-open (arg) ...) + +;;;###autoload +(defun org-export-as-latex-batch () + "Call `org-export-as-latex', may be used in batch processing as +emacs --batch + --load=$HOME/lib/emacs/org.el + --eval \"(setq org-export-headline-levels 2)\" + --visit=MyFile --funcall org-export-as-latex-batch" + (org-export-as-latex org-export-headline-levels 'hidden)) + +;;;###autoload +(defun org-export-as-latex-to-buffer (arg) + "Call `org-exort-as-latex` with output to a temporary buffer. +No file is created. The prefix ARG is passed through to `org-export-as-latex'." + (interactive "P") + (org-export-as-latex arg nil nil "*Org LaTeX Export*") + (switch-to-buffer-other-window "*Org LaTeX Export*")) + +;;;###autoload +(defun org-replace-region-by-latex (beg end) + "Replace the region from BEG to END with its LaTeX export. +It assumes the region has `org-mode' syntax, and then convert it to +LaTeX. This can be used in any buffer. For example, you could +write an itemized list in `org-mode' syntax in an LaTeX buffer and +then use this command to convert it." + (interactive "r") + (let (reg latex buf) + (save-window-excursion + (if (org-mode-p) + (setq latex (org-export-region-as-latex + beg end t 'string)) + (setq reg (buffer-substring beg end) + buf (get-buffer-create "*Org tmp*")) + (save-excursion + (set-buffer buf) + (erase-buffer) + (insert reg) + (org-mode) + (setq latex (org-export-region-as-latex + (point-min) (point-max) t 'string))) + (kill-buffer buf))) + (delete-region beg end) + (insert latex))) + +;;;###autoload +(defun org-export-region-as-latex (beg end &optional body-only buffer) + "Convert region from BEG to END in `org-mode' buffer to LaTeX. +If prefix arg BODY-ONLY is set, omit file header, footer, and table of +contents, and only produce the region of converted text, useful for +cut-and-paste operations. +If BUFFER is a buffer or a string, use/create that buffer as a target +of the converted LaTeX. If BUFFER is the symbol `string', return the +produced LaTeX as a string and leave not buffer behind. For example, +a Lisp program could call this function in the following way: + + (setq latex (org-export-region-as-latex beg end t 'string)) + +When called interactively, the output buffer is selected, and shown +in a window. A non-interactive call will only retunr the buffer." + (interactive "r\nP") + (when (interactive-p) + (setq buffer "*Org LaTeX Export*")) + (let ((transient-mark-mode t) (zmacs-regions t) + rtn) + (goto-char end) + (set-mark (point)) ;; to activate the region + (goto-char beg) + (setq rtn (org-export-as-latex + nil nil nil + buffer body-only)) + (if (fboundp 'deactivate-mark) (deactivate-mark)) + (if (and (interactive-p) (bufferp rtn)) + (switch-to-buffer-other-window rtn) + rtn))) + +;;;###autoload +(defun org-export-as-latex (arg &optional hidden ext-plist + to-buffer body-only) + "Export current buffer to a LaTeX file." + (interactive "P") + ;; Make sure we have a file name when we need it. + (when (and (not (or to-buffer body-only)) + (not buffer-file-name)) + (if (buffer-base-buffer) + (org-set-local 'buffer-file-name + (with-current-buffer (buffer-base-buffer) + buffer-file-name)) + (error "Need a file name to be able to export"))) + + (message "Exporting to LaTeX...") + (org-update-radio-target-regexp) + (org-export-latex-set-initial-vars ext-plist) + (let* ((opt-plist org-latex-options-plist) + (filename (concat (file-name-as-directory + (org-export-directory :LaTeX ext-plist)) + (file-name-sans-extension + (file-name-nondirectory ;sans-extension + buffer-file-name)) ".tex")) + (filename (if (equal (file-truename filename) + (file-truename buffer-file-name)) + (concat filename ".tex") + filename)) + (buffer (if to-buffer + (cond + ((eq to-buffer 'string) (get-buffer-create + "*Org LaTeX Export*")) + (t (get-buffer-create to-buffer))) + (find-file-noselect filename))) + (region-p (org-region-active-p)) + (odd org-odd-levels-only) + (preamble (org-export-latex-make-preamble opt-plist)) + (skip (plist-get opt-plist :skip-before-1st-heading)) + (text (plist-get opt-plist :text)) + (first-lines (if skip "" (org-export-latex-first-lines))) + (coding-system (and (boundp 'buffer-file-coding-system) + buffer-file-coding-system)) + (coding-system-for-write (or org-export-latex-coding-system + coding-system)) + (save-buffer-coding-system (or org-export-latex-coding-system + coding-system)) + (region (buffer-substring + (if region-p (region-beginning) (point-min)) + (if region-p (region-end) (point-max)))) + (string-for-export + ;; FIXME Use org-cleaned-string-for-export instead, only when + ;; everyone uses Org >5.04 + (org-latex-cleaned-string-for-export + region :for-html nil + :comments nil + :for-LaTeX t + :skip-before-1st-heading nil + :LaTeX-fragments nil))) + (set-buffer buffer) + (erase-buffer) + (unless body-only (insert preamble)) + (when text (insert (org-export-latex-content text) "\n\n")) + (unless skip (insert first-lines)) + + ;; handle the case where the region does not begin with a section + (when region-p + (insert (with-temp-buffer + (insert string-for-export) + (org-export-latex-first-lines)))) + + (org-export-latex-global + (with-temp-buffer + (insert string-for-export) + (goto-char (point-min)) + (re-search-forward "^\\(\\*+\\) " nil t) + (let* ((asters (length (match-string 1))) + (level (if odd (- asters 2) (- asters 1)))) + (setq org-latex-add-level + (if odd (1- (/ (1+ asters) 2)) (1- asters))) + (org-export-latex-parse-global level odd)))) + + (unless body-only (insert "\n\\end{document}")) + (or to-buffer (write-file filename)) + (goto-char (point-min)) + (message "Exporting to LaTeX...done") + (if (eq to-buffer 'string) + (prog1 (buffer-substring (point-min) (point-max)) + (kill-buffer (current-buffer))) + (current-buffer)))) + +(defun org-export-latex-set-initial-vars (ext-plist) + "Store org local variables required for LaTeX export. +EXT-PLIST is an optional additional plist." + (setq org-latex-todo-keywords-1 org-todo-keywords-1 + org-latex-all-targets-regexp + (org-make-target-link-regexp (org-all-targets)) + org-latex-options-plist + (org-combine-plists (org-default-export-plist) ext-plist + (org-infile-export-plist)) + org-latex-sectioning-depth + (let ((hl-levels (plist-get org-latex-options-plist :headline-levels)) + (sec-depth (length org-export-latex-sectioning-alist))) + ;; Fall back on org-export-latex-sectioning-alist length if + ;; headline-levels goes beyond it + (if (> hl-levels sec-depth) sec-depth hl-levels)))) + +(defun org-export-latex-make-preamble (opt-plist) + "Make the LaTeX preamble and return it as a string. +Argument OPT-PLIST is the options plist for current buffer." + (let ((toc (plist-get opt-plist :table-of-contents))) + (format (concat org-export-latex-preamble + " +%s + +\\begin{document} + +\\title{%s} +%s +%s +\\maketitle +%s +%s +") + (if org-export-latex-packages-alist + (mapconcat (lambda(p) + (if (equal "" (car p)) + (format "\\usepackage{%s}" (cadr p)) + (format "\\usepackage[%s]{%s}" + (car p) (cadr p)))) + org-export-latex-packages-alist "\n") "") + (or (plist-get opt-plist :title) + (and (not + (plist-get opt-plist :skip-before-1st-heading)) + (org-export-grab-title-from-buffer)) + (and buffer-file-name + (file-name-sans-extension + (file-name-nondirectory buffer-file-name))) + "UNTITLED") + (if (plist-get opt-plist :author-info) + (format "\\author{%s}" + (or (plist-get opt-plist :author) user-full-name)) + (format "%%\\author{%s}" + (or (plist-get opt-plist :author) user-full-name))) + (if (plist-get opt-plist :timestamps) + (format "\\date{%s}" + (format-time-string (or org-export-latex-date-format + (car org-time-stamp-formats)))) + "%\\date{}") + (if (and (plist-get opt-plist :section-numbers) toc) + (format "\\setcounter{tocdepth}{%s}" + (plist-get opt-plist :headline-levels)) "") + (if (and (plist-get opt-plist :section-numbers) toc) + "\\tableofcontents" "")))) + +(defun org-export-latex-first-lines (&optional comments) + "Export the first lines before first headline. +COMMENTS is either nil to replace them with the empty string or a +formatting string like %%%%s if we want to comment them out." + (save-excursion + (goto-char (point-min)) + (let* ((end (if (re-search-forward "^\\*" nil t) + (goto-char (match-beginning 0)) + (goto-char (point-max))))) + (org-export-latex-content + (org-latex-cleaned-string-for-export + (buffer-substring (point-min) end) + :for-html nil + :for-LaTeX t + :comments nil + :skip-before-1st-heading nil + :LaTeX-fragments nil))))) + +(defun org-export-latex-parse-global (level odd) + "Parse the current buffer recursively, starting at LEVEL. +If ODD is non-nil, assume the buffer only contains odd sections. +Return A list reflecting the document structure." + (save-excursion + (goto-char (point-min)) + (let* ((cnt 0) output + (depth org-latex-sectioning-depth)) + (while (re-search-forward + (concat "^\\(\\(?:\\*\\)\\{" + (number-to-string (+ (if odd 2 1) level)) + "\\}\\) \\(.*\\)$") + ;; make sure that there is no upper heading + (when (> level 0) + (save-excursion + (save-match-data + (re-search-forward + (concat "^\\(\\(?:\\*\\)\\{" + (number-to-string level) + "\\}\\) \\(.*\\)$") nil t)))) t) + (setq cnt (1+ cnt)) + (let* ((pos (match-beginning 0)) + (heading (match-string 2)) + (nlevel (if odd (/ (+ 3 level) 2) (1+ level)))) + (save-excursion + (narrow-to-region + (point) + (save-match-data + (if (re-search-forward + (concat "^\\(\\(?:\\*\\)\\{" + (number-to-string (+ (if odd 2 1) level)) + "\\}\\) \\(.*\\)$") nil t) + (match-beginning 0) + (point-max)))) + (goto-char (point-min)) + (setq output + (append output + (list + (list + `(pos . ,pos) + `(level . ,nlevel) + `(occur . ,cnt) + `(heading . ,heading) + `(content . ,(org-export-latex-parse-content)) + `(subcontent . ,(org-export-latex-parse-subcontent + level odd))))))) + (widen))) + (list output)))) + +(defun org-export-latex-parse-content () + "Extract the content of a section." + (let ((beg (point)) + (end (if (re-search-forward "^\\(\\*\\)+ .*$" nil t) + (progn (beginning-of-line) (point)) + (point-max)))) + (buffer-substring beg end))) + +(defun org-export-latex-parse-subcontent (level odd) + "Extract the subcontent of a section at LEVEL. +If ODD Is non-nil, assume subcontent only contains odd sections." + (if (not (re-search-forward + (concat "^\\(\\(?:\\*\\)\\{" + (number-to-string (+ (if odd 4 2) level)) + "\\}\\) \\(.*\\)$") + nil t)) + nil ; subcontent is nil + (org-export-latex-parse-global (+ (if odd 2 1) level) odd))) + +(defun org-export-latex-global (content) + "Export CONTENT to LaTeX. +CONTENT is an element of the list produced by +`org-export-latex-parse-global'." + (if (eq (car content) 'subcontent) + (mapc 'org-export-latex-sub (cdr content)) + (org-export-latex-sub (car content)))) + +(defun org-export-latex-sub (subcontent) + "Export the list SUBCONTENT to LaTeX. +SUBCONTENT is an alist containing information about the headline +and its content." + (mapc (lambda(x) (org-export-latex-subcontent x)) subcontent)) + +(defun org-export-latex-subcontent (subcontent) + "Export each cell of SUBCONTENT to LaTeX." + (let ((heading (org-export-latex-fontify-headline + (cdr (assoc 'heading subcontent)))) + (level (- (cdr (assoc 'level subcontent)) + org-latex-add-level)) + (occur (number-to-string (cdr (assoc 'occur subcontent)))) + (content (cdr (assoc 'content subcontent))) + (subcontent (cadr (assoc 'subcontent subcontent))) + (num (plist-get org-latex-options-plist :section-numbers))) + (cond + ;; Normal conversion + ((<= level org-latex-sectioning-depth) + (let ((sec (assoc level org-export-latex-sectioning-alist))) + (insert (format (if num (cadr sec) (caddr sec)) heading) "\n")) + (insert (org-export-latex-content content)) + (cond ((stringp subcontent) (insert subcontent)) + ((listp subcontent) (org-export-latex-sub subcontent)))) + ;; At a level under the hl option: we can drop this subsection + ((> level org-latex-sectioning-depth) + (cond ((eq org-export-latex-low-levels 'description) + (insert (format "\\begin{description}\n\n\\item[%s]\n\n" heading)) + (insert (org-export-latex-content content)) + (cond ((stringp subcontent) (insert subcontent)) + ((listp subcontent) (org-export-latex-sub subcontent))) + (insert "\\end{description}\n")) + ((stringp org-export-latex-low-levels) + (insert (format org-export-latex-low-levels heading) "\n") + (insert (org-export-latex-content content)) + (cond ((stringp subcontent) (insert subcontent)) + ((listp subcontent) (org-export-latex-sub subcontent))))))))) + +(defun org-export-latex-special-keywords-maybe (remove-list) + "Maybe remove keywords depending on rules in REMOVE-LIST." + (goto-char (point-min)) + (let ((re-todo (mapconcat 'identity org-latex-todo-keywords-1 "\\|"))) + ;; convert TODO keywords + (when (re-search-forward (concat "^\\(" re-todo "\\)") nil t) + (if (plist-get remove-list :todo) + (replace-match "") + (replace-match (format "\\texttt{%s}" (match-string 1)) t t))) + ;; convert priority string + (when (re-search-forward "\\[\\\\#.\\]" nil t) + (if (plist-get remove-list :priority) + (replace-match "") + (replace-match (format "\\texttt{%s}" (match-string 0)) t t))) + ;; convert tags + (when (re-search-forward "\\(:[a-zA-Z0-9]+\\)+:" nil t) + (if (plist-get remove-list :tags) + (replace-match "") + (replace-match (format "\\texttt{%s}" (match-string 0)) t t))))) + +(defun org-export-latex-fontify-headline (headline) + "Fontify special words in a HEADLINE." + (with-temp-buffer + ;; FIXME: org-inside-LaTeX-fragment-p doesn't work when the $...$ is at + ;; the beginning of the buffer - inserting "\n" is safe here though. + (insert "\n" headline) + (goto-char (point-min)) + (org-export-latex-fontify) + (org-export-latex-special-chars + (plist-get org-latex-options-plist :sub-superscript)) + (org-export-latex-special-keywords-maybe + org-export-latex-remove-from-headines) + (org-export-latex-links) + (org-trim (buffer-substring-no-properties (point-min) (point-max))))) + +(defun org-export-latex-content (content) + "Convert CONTENT string to LaTeX." + (with-temp-buffer + (insert content) + (org-export-latex-quotation-marks) + (when (plist-get org-latex-options-plist :emphasize) + (org-export-latex-fontify)) + (org-export-latex-special-chars + (plist-get org-latex-options-plist :sub-superscript)) + (org-export-latex-links) + (org-export-latex-special-keywords) + (org-export-latex-itemize) + (org-export-latex-enumerate) + (org-export-latex-tables + (plist-get org-latex-options-plist :tables)) + (org-export-latex-fixed-width + (plist-get org-latex-options-plist :fixed-width)) + (org-export-fix-invisible-strings) + (buffer-substring (point-min) (point-max)))) + +(defun org-export-fix-invisible-strings () + "Comment out (INVISIBLE) warnings." + (goto-char (point-min)) + (while (re-search-forward "(INVISIBLE)" nil t) + (replace-match "%\\&"))) + +(defun org-export-latex-quotation-marks () + "Export question marks depending on language conventions. +Local definition of the language overrides +`org-export-latex-quotation-marks-convention' which overrides +`org-export-default-language'." + (let* ((lang (or (plist-get org-latex-options-plist :language) + org-export-latex-quotation-marks-convention)) + (quote-rpl (if (equal lang "fr") + '(("\\(\\s-\\)\"" "«~") + ("\\(\\S-\\)\"" "~»") + ("\\(\\s-\\)'" "`")) + '(("\\(\\s-\\)\"" "``") + ("\\(\\S-\\)\"" "''") + ("\\(\\s-\\)'" "`"))))) + (mapc (lambda(l) (goto-char (point-min)) + (while (re-search-forward (car l) nil t) + (let ((rpl (concat (match-string 1) (cadr l)))) + (org-latex-protect rpl) + (org-if-unprotected + (replace-match rpl t t))))) quote-rpl))) + +;; | chars/string in Org | normal environment | math environment | +;; |-----------------------+-----------------------+-----------------------| +;; | & # % $ | \& \# \% \$ | \& \# \% \$ | +;; | { } _ ^ \ | \ { \ } \_ \^ \\ | { } _ ^ \ | +;; |-----------------------+-----------------------+-----------------------| +;; | a_b and a^b | $a_b$ and $a^b$ | a_b and a^b | +;; | a_abc and a_{abc} | $a_a$bc and $a_{abc}$ | a_abc and a_{abc} | +;; | \tau and \mu | $\tau$ and $\mu$ | \tau and \mu | +;; |-----------------------+-----------------------+-----------------------| +;; | \_ \^ | \_ \^ | \_ \^ | +;; | \(a=\mu\mbox{m}\) | \(a=\mu\mbox{m}\) | \(a=\mu\mbox{m}\) | +;; | \[\beta^2-a=0\] | \[\beta^2-a=0\] | \[\beta^2-a=0\] | +;; | $x=22\tau$ | $x=22\tau$ | $x=22\tau$ | +;; | $$\alpha=\sqrt{a^3}$$ | $$\alpha=\sqrt{a^3}$$ | $$\alpha=\sqrt{a^3}$$ | + +(defun org-export-latex-special-chars (sub-superscript) + "Export special characters to LaTeX. +If SUB-SUPERSCRIPT is non-nil, convert \\ and ^. +See the `org-export-latex.el' code for a complete conversion table." + (goto-char (point-min)) + (mapc (lambda(c) + (goto-char (point-min)) + (while (re-search-forward c nil t) + ;; Put the point where to check for org-protected + (unless (get-text-property (match-beginning 2) 'org-protected) + (cond ((member (match-string 2) '("\\$" "$")) + (if (equal (match-string 2) "\\$") + (replace-match (concat (match-string 1) "$" + (match-string 3)) t t) + (replace-match (concat (match-string 1) "\\$" + (match-string 3)) t t))) + ((member (match-string 2) '("&" "#" "%")) + (if (equal (match-string 1) "\\") + (replace-match (match-string 2) t t) + (replace-match (concat (match-string 1) "\\" + (match-string 2)) t t))) + ((equal (match-string 2) "~") + (unless (get-text-property 0 'org-protected (match-string 2)) + (if (equal (match-string 1) "\\") nil + (replace-match + (org-latex-protect + (concat (match-string 1) "\\textasciitilde{}")) t t)))) + ((member (match-string 2) '("{" "}")) + (unless (save-match-data (org-inside-LaTeX-fragment-p)) + (if (equal (match-string 1) "\\") + (replace-match (match-string 2) t t) + (replace-match (concat (match-string 1) "\\" + (match-string 2)) t t))))) + (unless (save-match-data (org-inside-LaTeX-fragment-p)) + (cond ((equal (match-string 2) "\\") + (replace-match (or (save-match-data + (org-export-latex-treat-backslash-char + (match-string 1) + (match-string 3))) "") t t)) + ((member (match-string 2) '("_" "^")) + (replace-match (or (save-match-data + (org-export-latex-treat-sub-super-char + sub-superscript + (match-string 1) + (match-string 2) + (match-string 3))) "") t t))))))) + '("^\\([^\n$]*?\\|^\\)\\(\\\\?\\$\\)\\([^\n$]*\\)$" + "\\([a-za-z0-9]+\\|[ \t\n]\\|\\\\\\)\\(_\\|\\^\\)\\([a-za-z0-9]+\\|[ \t\n]\\|[:punct:]\\|{[a-za-z0-9]+}\\|([a-za-z0-9]+)\\)" + "\\(.\\|^\\)\\(\\\\\\)\\([ \t\n]\\|[a-za-z&#%{}]+\\)" + "\\(.\\|^\\)\\(&\\)" + "\\(.\\|^\\)\\(#\\)" + "\\(.\\|^\\)\\(%\\)" + "\\(.\\|^\\)\\({\\)" + "\\(.\\|^\\)\\(}\\)" + "\\(.\\|^\\)\\(~\\)"))) + +(defun org-export-latex-treat-sub-super-char + (subsup string-before char string-after) + "Convert the \"_\" and \"^\" characters to LaTeX. +SUBSUP corresponds to the ^: option in the #+OPTIONS line. +Convert CHAR depending on STRING-BEFORE and STRING-AFTER." + (cond ((equal string-before "\\") + (concat string-before char string-after)) + ;; this is part of a math formula + ((and (string-match "\\S-+" string-before) + (string-match "\\S-+" string-after)) + (cond ((get-text-property 0 'org-protected char) + (concat string-before "\\" char string-after)) + ((save-match-data (org-inside-LaTeX-fragment-p)) + (if subsup + (cond ((eq 1 (length string-after)) + (concat string-before char string-after)) + ((string-match "[({]?\\([^)}]+\\)[)}]?" string-after) + (format "%s%s{%s}" string-before char + (match-string 1 string-after)))))) + ((and subsup + (> (length string-after) 1) + (string-match "[({]?\\([^)}]+\\)[)}]?" string-after)) + (format "$%s%s{%s}$" string-before char + (match-string 1 string-after))) + (subsup (concat "$" string-before char string-after "$")) + (t (concat string-before char string-after)))) + (t (concat string-before "\\" char string-after)))) + +(defun org-export-latex-treat-backslash-char (string-before string-after) + "Convert the \"$\" special character to LaTeX. +The conversion is made depending of STRING-BEFORE and STRING-AFTER." + (cond ((member (list string-after) org-html-entities) + ;; backslash is part of a special entity (like "\alpha") + (concat string-before "$\\" + (or (cdar (member (list string-after) org-html-entities)) + string-after) "$")) + ((and (not (string-match "^[ \n\t]" string-after)) + (not (string-match "[ \n\t]\\'" string-before))) + ;; backslash is inside a word + (concat string-before "$\\backslash$" string-after)) + ((not (or (equal string-after "") + (string-match "^[ \t\n]" string-after))) + ;; backslash might escape a character (like \#) or a user TeX + ;; macro (like \setcounter) + (concat string-before "\\" string-after)) + ((and (string-match "^[ \t\n]" string-after) + (string-match "[ \t\n]\\'" string-before)) + ;; backslash is alone, convert it to $\backslash$ + (concat string-before "$\\backslash$" string-after)) + (t (concat string-before "$\\backslash$" string-after)))) + +(defun org-export-latex-fixed-width (opt) + "When OPT is non-nil convert fixed-width sections to LaTeX." + (goto-char (point-min)) + (while (re-search-forward "^[ \t]*:" nil t) + (if opt + (progn (goto-char (match-beginning 0)) + (insert "\\begin{verbatim}\n") + (while (looking-at "^\\([ \t]*\\):\\(.*\\)$") + (replace-match (concat (match-string 1) + (match-string 2)) t t) + (forward-line)) + (insert "\\end{verbatim}\n\n")) + (progn (goto-char (match-beginning 0)) + (while (looking-at "^\\([ \t]*\\):\\(.*\\)$") + (replace-match (concat "%" (match-string 1) + (match-string 2)) t t) + (forward-line)))))) + +(defun org-export-latex-tables (opt) + "When OPT is non-nil convert tables to LaTeX." + (goto-char (point-min)) + (while (re-search-forward "^\\([ \t]*\\)|" nil t) + ;; Re-align the table to update org-table-last-alignment + (save-excursion (save-match-data (org-table-align))) + (let (tbl-list + (beg (match-beginning 0)) + (end (save-excursion + (re-search-forward + (concat "^" (regexp-quote (match-string 1)) + "[^|]\\|\\'") nil t) (match-beginning 0)))) + (beginning-of-line) + (while (not (eq end (point))) + (if (looking-at "[ \t]*|\\([^-|].+\\)|[ \t]*$") + (push (split-string (org-trim (match-string 1)) "|") tbl-list) + (push 'hline tbl-list)) + (forward-line)) + ;; comment region out instead of deleting it ? + (apply 'delete-region (list beg end)) + (when opt (insert (orgtbl-to-latex (nreverse tbl-list) + nil) "\n\n"))))) + +(defun org-export-latex-special-keywords () + "Convert special keywords to LaTeX. +Regexps are those from `org-latex-special-string-regexps'." + (let ((rg org-latex-special-string-regexps) r) + (while (setq r (pop rg)) + (goto-char (point-min)) + (while (re-search-forward (eval r) nil t) + (replace-match (format "\\\\texttt{%s}" (match-string 0)) t))))) + +;; FIXME - we need better implementation for nested lists +(defun org-export-latex-list (srch0 srch1 srch2 rpl0 rpl1) + "Convert lists to LaTeX." + (goto-char (point-min)) + (while (re-search-forward srch0 nil t) + (let* ((beg (match-beginning 0)) + (prefix (regexp-quote (match-string 1))) + (end-string (when (re-search-forward srch1 nil t) + (match-string 0)))) + (goto-char beg) (insert rpl0) + (while (re-search-forward + (concat "^" prefix srch2) + (if (not end-string) + (point-max) + (save-match-data + (save-excursion + (re-search-forward + (regexp-quote end-string) nil t)))) t) + (replace-match + (concat "\\item " + (if (match-string 1) + (format "\\texttt{%s}" (match-string 1)))) + t t)) + (goto-char (if end-string + (progn (re-search-forward + (regexp-quote end-string) nil t) + (match-beginning 0)) + (point-max))) + (skip-chars-backward "\n") (forward-line 2) + (insert rpl1)))) + +(defun org-export-latex-itemize () + "Convert item list to LaTeX." + (org-export-latex-list + "^\\([ \t]*\\)-" + "^[^ \n\t-]+.*$" + "- ?\\(\\[.+\\]\\)?" + "\\begin{itemize}\n" + "\\end{itemize}\n")) + +(defun org-export-latex-enumerate () + "Convert numeric list to LaTeX." + (org-export-latex-list + "^\\([ \t]*\\)[0-9]+[\.)] \\(\\[.+\\]\\)? ?" + "^[^ \n\t0-9]+.*$" + "[0-9]+[\.)] ?\\(\\[.+\\]\\)?" + "\\begin{enumerate}\n" + "\\end{enumerate}\n")) + +(defun org-export-latex-fontify () + "Convert fontification to LaTeX." + (goto-char (point-min)) + (while (re-search-forward org-emph-re nil t) + ;; The match goes one char after the *string* + (unless (get-text-property (1- (point)) 'org-protected) + (replace-match + (concat (match-string 1) + (format + (org-export-latex-protect-char-in-string + '("\\" "{" "}") + (cadr (assoc (match-string 3) + org-export-latex-emphasis-alist))) + (match-string 4)) + (match-string 5)) t t) + (backward-char)))) + +(defun org-export-latex-protect-char-in-string (char-list string) + "Add org-protected text-property to char from CHAR-LIST in STRING." + (with-temp-buffer + (save-match-data + (insert string) + (goto-char (point-min)) + (while (re-search-forward (regexp-opt char-list) nil t) + (add-text-properties (match-beginning 0) + (match-end 0) '(org-protected t))) + (buffer-string)))) + +(defun org-export-latex-links () + ;; Make sure to use the LaTeX hyperref and graphicx package + ;; or send some warnings. + "Convert links to LaTeX." + (goto-char (point-min)) + (while (re-search-forward org-bracket-link-analytic-regexp nil t) + (org-if-unprotected + (goto-char (match-beginning 0)) + (let* ((re-radio org-latex-all-targets-regexp) + (remove (list (match-beginning 0) (match-end 0))) + (type (match-string 2)) + (raw-path (match-string 3)) + (full-raw-path (concat (match-string 1) raw-path)) + (desc (match-string 5)) + imgp radiop + ;; define the path of the link + (path (cond + ((member type '("http" "https" "ftp")) + (concat type ":" raw-path)) + ((and re-radio (string-match re-radio raw-path)) + (setq radiop t)) + ((equal type "mailto") + (concat type ":" raw-path)) + ((equal type "file") + (if (and (or (org-file-image-p (expand-file-name raw-path)) + (string-match "\\.eps$" raw-path)) + (equal desc full-raw-path)) + (setq imgp t) + (progn (when (string-match "\\(.+\\)::.+" raw-path) + (setq raw-path (match-string 1 raw-path))) + (if (file-exists-p raw-path) + (concat type "://" (expand-file-name raw-path)) + (concat type "://" (org-export-directory + :LaTeX org-latex-options-plist) + raw-path)))))))) + ;; process with link inserting + (apply 'delete-region remove) + (cond ((and imgp (plist-get org-latex-options-plist :inline-images)) + (insert (format "\\includegraphics[%s]{%s}" + ;; image option should be set be a comment line + org-export-latex-image-default-option + (expand-file-name raw-path)))) + ;; FIXME: what about caption? image properties? + (radiop (insert (format "\\hyperref[%s]{%s}" raw-path desc))) + (path (insert (format "\\href{%s}{%s}" path desc))) + (t (insert "\\texttt{" desc "}"))))))) + + +(defun org-latex-cleaned-string-for-export (string &rest parameters) + "Cleanup a buffer STRING so that links can be created safely." + (interactive) + (let* ((re-radio (and org-target-link-regexp + (concat "\\([^<]\\)\\(" org-target-link-regexp "\\)"))) + (re-plain-link (concat "\\([^[<]\\)" org-plain-link-re)) + (re-angle-link (concat "\\([^[]\\)" org-angle-link-re)) + (re-archive (concat ":" org-archive-tag ":")) + (re-quote (concat "^\\*+[ \t]+" org-quote-string "\\>")) + (htmlp (plist-get parameters :for-html)) + (latexp (plist-get parameters :for-LaTeX)) + (commentsp (plist-get parameters :comments)) + (inhibit-read-only t) + (outline-regexp "\\*+ ") + a b xx + rtn p) + (save-excursion + (set-buffer (get-buffer-create " org-mode-tmp")) + (erase-buffer) + (insert string) + ;; Remove license-to-kill stuff + (while (setq p (text-property-any (point-min) (point-max) + :org-license-to-kill t)) + (delete-region p (next-single-property-change p :org-license-to-kill))) + + (let ((org-inhibit-startup t)) (org-mode)) + (untabify (point-min) (point-max)) + + ;; Get the correct stuff before the first headline + (when (plist-get parameters :skip-before-1st-heading) + (goto-char (point-min)) + (when (re-search-forward "^\\*+[ \t]" nil t) + (delete-region (point-min) (match-beginning 0)) + (goto-char (point-min)) + (insert "\n"))) + (when (plist-get parameters :add-text) + (goto-char (point-min)) + (insert (plist-get parameters :add-text) "\n")) + + ;; Get rid of archived trees + (when (not (eq org-export-with-archived-trees t)) + (goto-char (point-min)) + (while (re-search-forward re-archive nil t) + (if (not (org-on-heading-p t)) + (org-end-of-subtree t) + (beginning-of-line 1) + (setq a (if org-export-with-archived-trees + (1+ (point-at-eol)) (point)) + b (org-end-of-subtree t)) + (if (> b a) (delete-region a b))))) + + ;; Get rid of property drawers + (unless org-export-with-property-drawer + (goto-char (point-min)) + (while (re-search-forward "^[ \t]*:PROPERTIES:[ \t]*\n\\([^@]*?\n\\)?[ \t]*:END:[ \t]*\n" nil t) + (replace-match ""))) + + ;; Find targets in comments and move them out of comments, + ;; but mark them as targets that should be invisible + (goto-char (point-min)) + (while (re-search-forward "^#.*?\\(<<\r\n]+>>>?\\).*" nil t) + (replace-match "\\1(INVISIBLE)")) + + ;; Specific LaTeX cleaning + (when latexp + (require 'org-export-latex nil t) + (org-export-latex-cleaned-string)) + + ;; Protect stuff from HTML processing + (goto-char (point-min)) + (let ((formatters `((,htmlp "HTML" "BEGIN_HTML" "END_HTML"))) fmt) + (while (re-search-forward "^[ \t]*:.*\\(\n[ \t]*:.*\\)*" nil t) + (add-text-properties (match-beginning 0) (match-end 0) + '(org-protected t))) + (while formatters + (setq fmt (pop formatters)) + (when (car fmt) + (goto-char (point-min)) + (while (re-search-forward (concat "^#\\+" (cadr fmt) + ":[ \t]*\\(.*\\)") nil t) + (replace-match "\\1" t) + (add-text-properties + (point-at-bol) (min (1+ (point-at-eol)) (point-max)) + '(org-protected t)))) + (goto-char (point-min)) + (while (re-search-forward + (concat "^#\\+" + (caddr fmt) "\\>.*\\(\\(\n.*\\)*?\n\\)#\\+" + (cadddr fmt) "\\>.*\n?") nil t) + (if (car fmt) + (add-text-properties (match-beginning 1) (1+ (match-end 1)) + '(org-protected t)) + (delete-region (match-beginning 0) (match-end 0)))) + (goto-char (point-min)) + (while (re-search-forward re-quote nil t) + (goto-char (match-beginning 0)) + (end-of-line 1) + (add-text-properties (point) (org-end-of-subtree t) + '(org-protected t))))) + + ;; Remove or replace comments + ;; If :comments is set, use this char for commenting out comments and + ;; protect them. otherwise delete them + (goto-char (point-min)) + (while (re-search-forward "^#\\(.*\n?\\)" nil t) + (if commentsp + (progn (add-text-properties + (match-beginning 0) (match-end 0) '(org-protected t)) + (replace-match (format commentsp (match-string 1)) t t)) + (replace-match ""))) + + ;; Find matches for radio targets and turn them into internal links + (goto-char (point-min)) + (when re-radio + (while (re-search-forward re-radio nil t) + (org-if-unprotected + (replace-match "\\1[[\\2]]")))) + + ;; Find all links that contain a newline and put them into a single line + (goto-char (point-min)) + (while (re-search-forward "\\(\\(\\[\\|\\]\\)\\[[^]]*?\\)[ \t]*\n[ \t]*\\([^]]*\\]\\(\\[\\|\\]\\)\\)" nil t) + (org-if-unprotected + (replace-match "\\1 \\3") + (goto-char (match-beginning 0)))) + + ;; Convert LaTeX fragments to images + (when (plist-get parameters :LaTeX-fragments) + (org-format-latex + (concat "ltxpng/" (file-name-sans-extension + (file-name-nondirectory + org-current-export-file))) + org-current-export-dir nil "Creating LaTeX image %s")) + (message "Exporting...") + + ;; Normalize links: Convert angle and plain links into bracket links + ;; Expand link abbreviations + (goto-char (point-min)) + (while (re-search-forward re-plain-link nil t) + (goto-char (1- (match-end 0))) + (org-if-unprotected + (let* ((s (concat (match-string 1) "[[" (match-string 2) + ":" (match-string 3) "]]"))) + ;; added 'org-protected property to links + (add-text-properties 0 (length s) '(org-protected t) s) + (replace-match s t t)))) + (goto-char (point-min)) + (while (re-search-forward re-angle-link nil t) + (goto-char (1- (match-end 0))) + (org-if-unprotected + (let* ((s (concat (match-string 1) "[[" (match-string 2) + ":" (match-string 3) "]]"))) + (add-text-properties 0 (length s) '(org-protected t) s) + (replace-match s t t)))) + (goto-char (point-min)) + (while (re-search-forward org-bracket-link-regexp nil t) + (org-if-unprotected + (let* ((s (concat "[[" (setq xx (save-match-data + (org-link-expand-abbrev (match-string 1)))) + "]" + (if (match-end 3) + (match-string 2) + (concat "[" xx "]")) + "]"))) + (add-text-properties 0 (length s) '(org-protected t) s) + (replace-match s t t)))) + + ;; Find multiline emphasis and put them into single line + (when (plist-get parameters :emph-multiline) + (goto-char (point-min)) + (while (re-search-forward org-emph-re nil t) + (if (not (= (char-after (match-beginning 3)) + (char-after (match-beginning 4)))) + (org-if-unprotected + (subst-char-in-region (match-beginning 0) (match-end 0) + ?\n ?\ t) + (goto-char (1- (match-end 0)))) + (goto-char (1+ (match-beginning 0)))))) + + (setq rtn (buffer-string))) + (kill-buffer " org-mode-tmp") + rtn)) + +(defsubst org-latex-protect (string) + (add-text-properties 0 (length string) '(org-protected t) string) + string) + +(defun org-export-latex-cleaned-string () + "Clean stuff in the LaTeX export." + + ;; preserve line breaks + (goto-char (point-min)) + (while (re-search-forward "\\\\\\\\" nil t) + (add-text-properties (match-beginning 0) (match-end 0) + '(org-protected t))) + + ;; convert LaTeX to @LaTeX{} + (goto-char (point-min)) + (let ((case-fold-search nil) rpl) + (while (re-search-forward "\\([^+_]\\)LaTeX" nil t) + (replace-match (org-latex-protect + (concat (match-string 1) "\\LaTeX{}")) t t))) + + ;; convert horizontal rules + (goto-char (point-min)) + (while (re-search-forward "^----+.$" nil t) + (replace-match (org-latex-protect "\\hrule") t t)) + + ;; Remove COMMENT subtrees + ;; What about QUOTE subtrees? + (goto-char (point-min)) + (while (re-search-forward + (concat "^\\*+ \\(" org-comment-string "\\)") + nil t) + (beginning-of-line) + (org-cut-subtree)) + + ;; protect LaTeX \commands{...} + (goto-char (point-min)) + (while (re-search-forward "\\\\[a-z]+{.+}" nil t) + (add-text-properties (match-beginning 0) (match-end 0) + '(org-protected t))) + + ;; Replace radio links + (goto-char (point-min)) + (let ((search (concat "<<?>>"))) + (while (re-search-forward search nil t) + (replace-match + (org-latex-protect (format "\\label{%s}" (match-string 1))) t t))) + + ;; delete @
cookies + (goto-char (point-min)) + (while (re-search-forward "@<[^<>\n]*>" nil t) + (replace-match "")) + + ;; add #+BEGIN_LaTeX before any \begin{...} + (goto-char (point-min)) + (while (re-search-forward "^ *\\\\begin{" nil t) + (replace-match "#+BEGIN_LaTeX:\n\\&" t)) + + ;; add #+END_LaTeX after any \end{...} + (goto-char (point-min)) + (while (re-search-forward "^ *\\\\end{.+}.*$" nil t) + (replace-match "\\&\n#+END_LaTeX" t)) + + ;; When converting to LaTeX, replace footnotes + ;; FIXME: don't protect footnotes from conversion + (when (plist-get org-latex-options-plist :footnotes) + (goto-char (point-min)) + (while (re-search-forward "\\[[0-9]+\\]" nil t) + (when (save-match-data + (save-excursion (beginning-of-line) + (looking-at "[^:|]"))) + (let ((foot-beg (match-beginning 0)) + (foot-end (match-end 0)) + (foot-prefix (match-string 0)) + footnote footnote-rpl) + (when (and (re-search-forward (regexp-quote foot-prefix) nil t)) + (replace-match "") + (let ((end (save-excursion + (if (re-search-forward "^$\\|\\[[0-9]+\\]" nil t) + (match-beginning 0) (point-max))))) + (setq footnote (concat + (org-trim (buffer-substring (point) end)) + ;; FIXME stupid workaround for cases where + ;; `org-bracket-link-analytic-regexp' matches + ;; }. as part of the link. + " ")) + (delete-region (point) end))) + (goto-char foot-beg) + (delete-region foot-beg foot-end) + (setq footnote-rpl (format "\\footnote{%s}" footnote)) + (add-text-properties 0 1 '(org-protected t) footnote-rpl) + (add-text-properties 9 10 '(org-protected t) footnote-rpl) + (add-text-properties (1- (length footnote-rpl)) + (length footnote-rpl) + '(org-protected t) footnote-rpl) + (insert footnote-rpl)))) + + ;; Replace footnote section tag for LaTeX + (goto-char (point-min)) + (while (re-search-forward + (concat "^" footnote-section-tag-regexp) nil t) + (replace-match ""))) + + ;; Protect stuff from LaTeX processing. + ;; We will get rid on this once org.el integrate org-export-latex.el + ;; FIXME: #+LaTeX should be aware of the preceeding indentation in lists + (goto-char (point-min)) + (let ((formatters `((,latexp "LaTeX" "BEGIN_LaTeX" "END_LaTeX"))) fmt) + (while (re-search-forward "^[ \t]*:.*\\(\n[ \t]*:.*\\)*" nil t) + (add-text-properties (match-beginning 0) (match-end 0) + '(org-protected t))) + (while formatters + (setq fmt (pop formatters)) + (when (car fmt) + (goto-char (point-min)) + (while (re-search-forward (concat "^#\\+" (cadr fmt) + ":[ \t]*\\(.*\\)") nil t) + (replace-match "\\1" t) + (add-text-properties + (point-at-bol) (min (1+ (point-at-eol)) (point-max)) + '(org-protected t)))) + (goto-char (point-min)) + (while (re-search-forward + (concat "^#\\+" + (caddr fmt) "\\>.*\\(\\(\n.*\\)*?\n\\)#\\+" + (cadddr fmt) "\\>.*\n?") nil t) + (if (car fmt) + (add-text-properties (match-beginning 1) (1+ (match-end 1)) + '(org-protected t)) + (delete-region (match-beginning 0) (match-end 0)))) + (goto-char (point-min)) + (while (re-search-forward re-quote nil t) + (goto-char (match-beginning 0)) + (end-of-line 1) + (add-text-properties (point) (org-end-of-subtree t) + '(org-protected t)))))) + +(provide 'org-export-latex) + +;;; org-export-latex.el ends here -- 2.39.2