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;;; org-odt.el --- OpenDocument Text exporter for Org-mode

;; Copyright (C) 2010-2012 Free Software Foundation, Inc.

;; Author: Jambunathan K <kjambunathan at gmail dot com>
;; Keywords: outlines, hypermedia, calendar, wp
;; Homepage: http://orgmode.org

;; This file is part of GNU Emacs.

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

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

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

;;; Commentary:

;;; Code:
(eval-when-compile
  (require 'cl))
(require 'org-lparse)

(defgroup org-export-odt nil
  "Options specific for ODT export of Org-mode files."
  :tag "Org Export ODT"
  :group 'org-export
  :version "24.1")

(defvar org-lparse-dyn-first-heading-pos) ; let bound during org-do-lparse
(defun org-odt-insert-toc ()
  (goto-char (point-min))
  (cond
   ((re-search-forward
     "\\(<text:p [^>]*>\\)?\\s-*\\[TABLE-OF-CONTENTS\\]\\s-*\\(</text:p>\\)?"
     nil t)
    (replace-match ""))
   (t
    (goto-char org-lparse-dyn-first-heading-pos)))
  (insert (org-odt-format-toc)))

(defun org-odt-end-export ()
  (org-odt-insert-toc)
  (org-odt-fixup-label-references)

  ;; remove empty paragraphs
  (goto-char (point-min))
  (while (re-search-forward
	  "<text:p\\( text:style-name=\"Text_20_body\"\\)?>[ \r\n\t]*</text:p>"
	  nil t)
    (replace-match ""))
  (goto-char (point-min))

  ;; Convert whitespace place holders
  (goto-char (point-min))
  (let (beg end n)
    (while (setq beg (next-single-property-change (point) 'org-whitespace))
      (setq n (get-text-property beg 'org-whitespace)
	    end (next-single-property-change beg 'org-whitespace))
      (goto-char beg)
      (delete-region beg end)
      (insert (format "<span style=\"visibility:hidden;\">%s</span>"
		      (make-string n ?x)))))

  ;; Remove empty lines at the beginning of the file.
  (goto-char (point-min))
  (when (looking-at "\\s-+\n") (replace-match ""))

  ;; Remove display properties
  (remove-text-properties (point-min) (point-max) '(display t)))

(defvar org-odt-suppress-xref nil)
(defconst org-export-odt-special-string-regexps
  '(("\\\\-" . "&#x00ad;\\1")		; shy
    ("---\\([^-]\\)" . "&#x2014;\\1")	; mdash
    ("--\\([^-]\\)" . "&#x2013;\\1")	; ndash
    ("\\.\\.\\." . "&#x2026;"))		; hellip
  "Regular expressions for special string conversion.")

(defconst org-odt-lib-dir (file-name-directory load-file-name)
  "Location of ODT exporter.
Use this to infer values of `org-odt-styles-dir' and
`org-export-odt-schema-dir'.")

(defvar org-odt-data-dir nil
  "Data directory for ODT exporter.
Use this to infer values of `org-odt-styles-dir' and
`org-export-odt-schema-dir'.")

(defconst org-odt-schema-dir-list
  (list
   (and org-odt-data-dir
	(expand-file-name "./schema/" org-odt-data-dir)) ; bail out
   (eval-when-compile
     (and (boundp 'org-odt-data-dir) org-odt-data-dir ; see make install
	  (expand-file-name "./schema/" org-odt-data-dir))))
  "List of directories to search for OpenDocument schema files.
Use this list to set the default value of
`org-export-odt-schema-dir'.  The entries in this list are
populated heuristically based on the values of `org-odt-lib-dir'
and `org-odt-data-dir'.")

(defcustom org-export-odt-schema-dir
  (let* ((schema-dir
	  (catch 'schema-dir
	    (message "Debug (org-odt): Searching for OpenDocument schema files...")
	    (mapc
	     (lambda (schema-dir)
	       (when schema-dir
		 (message "Debug (org-odt): Trying %s..." schema-dir)
		 (when (and (file-readable-p
			     (expand-file-name "od-manifest-schema-v1.2-cs01.rnc"
					       schema-dir))
			    (file-readable-p
			     (expand-file-name "od-schema-v1.2-cs01.rnc"
					       schema-dir))
			    (file-readable-p
			     (expand-file-name "schemas.xml" schema-dir)))
		   (message "Debug (org-odt): Using schema files under %s"
			    schema-dir)
		   (throw 'schema-dir schema-dir))))
	     org-odt-schema-dir-list)
	    (message "Debug (org-odt): No OpenDocument schema files installed")
	    nil)))
    schema-dir)
  "Directory that contains OpenDocument schema files.

This directory contains:
1. rnc files for OpenDocument schema
2. a \"schemas.xml\" file that specifies locating rules needed
   for auto validation of OpenDocument XML files.

Use the customize interface to set this variable.  This ensures
that `rng-schema-locating-files' is updated and auto-validation
of OpenDocument XML takes place based on the value
`rng-nxml-auto-validate-flag'.

The default value of this variable varies depending on the
version of org in use and is initialized from
`org-odt-schema-dir-list'.  The OASIS schema files are available
only in the org's private git repository.  It is *not* bundled
with GNU ELPA tar or standard Emacs distribution."
  :type '(choice
	  (const :tag "Not set" nil)
	  (directory :tag "Schema directory"))
  :group 'org-export-odt
  :version "24.1"
  :set
  (lambda (var value)
    "Set `org-export-odt-schema-dir'.
Also add it to `rng-schema-locating-files'."
    (let ((schema-dir value))
      (set var
	   (if (and
		(file-readable-p
		 (expand-file-name "od-manifest-schema-v1.2-cs01.rnc" schema-dir))
		(file-readable-p
		 (expand-file-name "od-schema-v1.2-cs01.rnc" schema-dir))
		(file-readable-p
		 (expand-file-name "schemas.xml" schema-dir)))
	       schema-dir
	     (when value
	       (message "Error (org-odt): %s has no OpenDocument schema files"
			value))
	     nil)))
    (when org-export-odt-schema-dir
      (eval-after-load 'rng-loc
	'(add-to-list 'rng-schema-locating-files
		      (expand-file-name "schemas.xml"
					org-export-odt-schema-dir))))))

(defconst org-odt-styles-dir-list
  (list
   (and org-odt-data-dir
	(expand-file-name "./styles/" org-odt-data-dir)) ; bail out
   (eval-when-compile
     (and (boundp 'org-odt-data-dir) org-odt-data-dir ; see make install
	  (expand-file-name "./styles/" org-odt-data-dir)))
   (expand-file-name "../etc/styles/" org-odt-lib-dir) ; git
   (expand-file-name "./etc/styles/" org-odt-lib-dir)  ; elpa
   (expand-file-name "./org/" data-directory)	       ; system
   )
  "List of directories to search for OpenDocument styles files.
See `org-odt-styles-dir'.  The entries in this list are populated
heuristically based on the values of `org-odt-lib-dir' and
`org-odt-data-dir'.")

(defconst org-odt-styles-dir
  (let* ((styles-dir
	  (catch 'styles-dir
	    (message "Debug (org-odt): Searching for OpenDocument styles files...")
	    (mapc (lambda (styles-dir)
		    (when styles-dir
		      (message "Debug (org-odt): Trying %s..." styles-dir)
		      (when (and (file-readable-p
				  (expand-file-name
				   "OrgOdtContentTemplate.xml" styles-dir))
				 (file-readable-p
				  (expand-file-name
				   "OrgOdtStyles.xml" styles-dir)))
			(message "Debug (org-odt): Using styles under %s"
				 styles-dir)
			(throw 'styles-dir styles-dir))))
		  org-odt-styles-dir-list)
	    nil)))
    (unless styles-dir
      (error "Error (org-odt): Cannot find factory styles files, aborting"))
    styles-dir)
  "Directory that holds auxiliary XML files used by the ODT exporter.

This directory contains the following XML files -
 \"OrgOdtStyles.xml\" and \"OrgOdtContentTemplate.xml\".  These
 XML files are used as the default values of
 `org-export-odt-styles-file' and
 `org-export-odt-content-template-file'.

The default value of this variable varies depending on the
version of org in use and is initialized from
`org-odt-styles-dir-list'.  Note that the user could be using org
from one of: org's own private git repository, GNU ELPA tar or
standard Emacs.")

(defvar org-odt-file-extensions
  '(("odt" . "OpenDocument Text")
    ("ott" . "OpenDocument Text Template")
    ("odm" . "OpenDocument Master Document")
    ("ods" . "OpenDocument Spreadsheet")
    ("ots" . "OpenDocument Spreadsheet Template")
    ("odg" . "OpenDocument Drawing (Graphics)")
    ("otg" . "OpenDocument Drawing Template")
    ("odp" . "OpenDocument Presentation")
    ("otp" . "OpenDocument Presentation Template")
    ("odi" . "OpenDocument Image")
    ("odf" . "OpenDocument Formula")
    ("odc" . "OpenDocument Chart")))

(mapc
 (lambda (desc)
   ;; Let Emacs open all OpenDocument files in archive mode
   (add-to-list 'auto-mode-alist
		(cons (concat  "\\." (car desc) "\\'") 'archive-mode)))
 org-odt-file-extensions)

;; register the odt exporter with the pre-processor
(add-to-list 'org-export-backends 'odt)

;; register the odt exporter with org-lparse library
(org-lparse-register-backend 'odt)

(defun org-odt-unload-function ()
  (org-lparse-unregister-backend 'odt)
  (remove-hook 'org-export-preprocess-after-blockquote-hook
	       'org-export-odt-preprocess-latex-fragments)
  nil)

(defcustom org-export-odt-content-template-file nil
  "Template file for \"content.xml\".
The exporter embeds the exported content just before
\"</office:text>\" element.

If unspecified, the file named \"OrgOdtContentTemplate.xml\"
under `org-odt-styles-dir' is used."
  :type 'file
  :group 'org-export-odt
  :version "24.1")

(defcustom org-export-odt-styles-file nil
  "Default styles file for use with ODT export.
Valid values are one of:
1. nil
2. path to a styles.xml file
3. path to a *.odt or a *.ott file
4. list of the form (ODT-OR-OTT-FILE (FILE-MEMBER-1 FILE-MEMBER-2
...))

In case of option 1, an in-built styles.xml is used.  See
`org-odt-styles-dir' for more information.

In case of option 3, the specified file is unzipped and the
styles.xml embedded therein is used.

In case of option 4, the specified ODT-OR-OTT-FILE is unzipped
and FILE-MEMBER-1, FILE-MEMBER-2 etc are copied in to the
generated odt file.  Use relative path for specifying the
FILE-MEMBERS.  styles.xml must be specified as one of the
FILE-MEMBERS.

Use options 1, 2 or 3 only if styles.xml alone suffices for
achieving the desired formatting.  Use option 4, if the styles.xml
references additional files like header and footer images for
achieving the desired formatting.

Use \"#+ODT_STYLES_FILE: ...\" directive to set this variable on
a per-file basis.  For example,

#+ODT_STYLES_FILE: \"/path/to/styles.xml\" or
#+ODT_STYLES_FILE: (\"/path/to/file.ott\" (\"styles.xml\" \"image/hdr.png\"))."
  :group 'org-export-odt
  :version "24.1"
  :type
  '(choice
    (const :tag "Factory settings" nil)
    (file :must-match t :tag "styles.xml")
    (file :must-match t :tag "ODT or OTT file")
    (list :tag "ODT or OTT file + Members"
	  (file :must-match t :tag "ODF Text or Text Template file")
	  (cons :tag "Members"
		(file :tag "	Member" "styles.xml")
		(repeat (file :tag "Member"))))))

(eval-after-load 'org-exp
  '(add-to-list 'org-export-inbuffer-options-extra
		'("ODT_STYLES_FILE" :odt-styles-file)))

(defconst org-export-odt-tmpdir-prefix "%s-")
(defconst org-export-odt-bookmark-prefix "OrgXref.")
(defvar org-odt-zip-dir nil
  "Temporary directory that holds XML files during export.")

(defvar org-export-odt-embed-images t
  "Should the images be copied in to the odt file or just linked?")

(defvar org-export-odt-inline-images 'maybe)
(defcustom org-export-odt-inline-image-extensions
  '("png" "jpeg" "jpg" "gif")
  "Extensions of image files that can be inlined into HTML."
  :type '(repeat (string :tag "Extension"))
  :group 'org-export-odt
  :version "24.1")

(defcustom org-export-odt-pixels-per-inch display-pixels-per-inch
  "Scaling factor for converting images pixels to inches.
Use this for sizing of embedded images.  See Info node `(org)
Images in ODT export' for more information."
  :type 'float
  :group 'org-export-odt
  :version "24.1")

(defcustom org-export-odt-create-custom-styles-for-srcblocks t
  "Whether custom styles for colorized source blocks be automatically created.
When this option is turned on, the exporter creates custom styles
for source blocks based on the advice of `htmlfontify'.  Creation
of custom styles happen as part of `org-odt-hfy-face-to-css'.

When this option is turned off exporter does not create such
styles.

Use the latter option if you do not want the custom styles to be
based on your current display settings.  It is necessary that the
styles.xml already contains needed styles for colorizing to work.

This variable is effective only if
`org-export-odt-fontify-srcblocks' is turned on."
  :group 'org-export-odt
  :version "24.1"
  :type 'boolean)

(defvar org-export-odt-default-org-styles-alist
  '((paragraph . ((default . "Text_20_body")
		  (fixedwidth . "OrgFixedWidthBlock")
		  (verse . "OrgVerse")
		  (quote . "Quotations")
		  (blockquote . "Quotations")
		  (center . "OrgCenter")
		  (left . "OrgLeft")
		  (right . "OrgRight")
		  (title . "OrgTitle")
		  (subtitle . "OrgSubtitle")
		  (footnote . "Footnote")
		  (src . "OrgSrcBlock")
		  (illustration . "Illustration")
		  (table . "Table")
		  (definition-term . "Text_20_body_20_bold")
		  (horizontal-line . "Horizontal_20_Line")))
    (character . ((default . "Default")
		  (bold . "Bold")
		  (emphasis . "Emphasis")
		  (code . "OrgCode")
		  (verbatim . "OrgCode")
		  (strike . "Strikethrough")
		  (underline . "Underline")
		  (subscript . "OrgSubscript")
		  (superscript . "OrgSuperscript")))
    (list . ((ordered . "OrgNumberedList")
	     (unordered . "OrgBulletedList")
	     (description . "OrgDescriptionList"))))
  "Default styles for various entities.")

(defvar org-export-odt-org-styles-alist org-export-odt-default-org-styles-alist)
(defun org-odt-get-style-name-for-entity (category &optional entity)
  (let ((entity (or entity 'default)))
    (or
     (cdr (assoc entity (cdr (assoc category
				    org-export-odt-org-styles-alist))))
     (cdr (assoc entity (cdr (assoc category
				    org-export-odt-default-org-styles-alist))))
     (error "Cannot determine style name for entity %s of type %s"
	    entity category))))

(defcustom org-export-odt-preferred-output-format nil
  "Automatically post-process to this format after exporting to \"odt\".
Interactive commands `org-export-as-odt' and
`org-export-as-odt-and-open' export first to \"odt\" format and
then use `org-export-odt-convert-process' to convert the
resulting document to this format.  During customization of this
variable, the list of valid values are populated based on
`org-export-odt-convert-capabilities'.

You can set this option on per-file basis using file local
values.  See Info node `(emacs) File Variables'."
  :group 'org-export-odt
  :version "24.1"
  :type '(choice :convert-widget
		 (lambda (w)
		   (apply 'widget-convert (widget-type w)
			  (eval (car (widget-get w :args)))))
		 `((const :tag "None" nil)
		   ,@(mapcar (lambda (c)
			       `(const :tag ,c ,c))
			     (org-lparse-reachable-formats "odt")))))
;;;###autoload
(put 'org-export-odt-preferred-output-format 'safe-local-variable 'stringp)

(defmacro org-odt-cleanup-xml-buffers (&rest body)
  `(let ((org-odt-zip-dir
	  (make-temp-file
	   (format org-export-odt-tmpdir-prefix "odf") t))
	 (--cleanup-xml-buffers
	  (function
	   (lambda nil
	     (let ((xml-files '("mimetype" "META-INF/manifest.xml" "content.xml"
				"meta.xml" "styles.xml")))
	       ;; kill all xml buffers
	       (mapc (lambda (file)
		       (let ((buf (find-file-noselect
				   (expand-file-name file org-odt-zip-dir) t)))
			 (when (buffer-name buf)
			   (set-buffer-modified-p nil)
			   (kill-buffer buf))))
		     xml-files))
	     ;; delete temporary directory.
	     (delete-directory org-odt-zip-dir t)))))
     (org-condition-case-unless-debug err
	 (prog1 (progn ,@body)
	   (funcall --cleanup-xml-buffers))
       ((quit error)
	(funcall --cleanup-xml-buffers)
	(message "OpenDocument export failed: %s"
		 (error-message-string err))))))

;;;###autoload
(defun org-export-as-odt-and-open (arg)
  "Export the outline as ODT and immediately open it with a browser.
If there is an active region, export only the region.
The prefix ARG specifies how many levels of the outline should become
headlines.  The default is 3.  Lower levels will become bulleted lists."
  (interactive "P")
  (org-odt-cleanup-xml-buffers
   (org-lparse-and-open
    (or org-export-odt-preferred-output-format "odt") "odt" arg)))

;;;###autoload
(defun org-export-as-odt-batch ()
  "Call the function `org-lparse-batch'.
This function can 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-odt-batch"
  (org-lparse-batch "odt"))

;;; org-export-as-odt
;;;###autoload
(defun org-export-as-odt (arg &optional hidden ext-plist
			      to-buffer body-only pub-dir)
  "Export the outline as a OpenDocumentText file.
If there is an active region, export only the region.  The prefix
ARG specifies how many levels of the outline should become
headlines.  The default is 3.  Lower levels will become bulleted
lists.  HIDDEN is obsolete and does nothing.
EXT-PLIST is a property list with external parameters overriding
org-mode's default settings, but still inferior to file-local
settings.  When TO-BUFFER is non-nil, create a buffer with that
name and export to that buffer.  If TO-BUFFER is the symbol
`string', don't leave any buffer behind but just return the
resulting XML as a string.  When BODY-ONLY is set, don't produce
the file header and footer, simply return the content of
<body>...</body>, without even the body tags themselves.  When
PUB-DIR is set, use this as the publishing directory."
  (interactive "P")
  (org-odt-cleanup-xml-buffers
   (org-lparse (or org-export-odt-preferred-output-format "odt")
	       "odt" arg hidden ext-plist to-buffer body-only pub-dir)))

(defvar org-odt-entity-control-callbacks-alist
  `((EXPORT
     . (org-odt-begin-export org-odt-end-export))
    (DOCUMENT-CONTENT
     . (org-odt-begin-document-content org-odt-end-document-content))
    (DOCUMENT-BODY
     . (org-odt-begin-document-body org-odt-end-document-body))
    (TOC
     . (org-odt-begin-toc org-odt-end-toc))
    (ENVIRONMENT
     . (org-odt-begin-environment org-odt-end-environment))
    (FOOTNOTE-DEFINITION
     . (org-odt-begin-footnote-definition org-odt-end-footnote-definition))
    (TABLE
     . (org-odt-begin-table org-odt-end-table))
    (TABLE-ROWGROUP
     . (org-odt-begin-table-rowgroup org-odt-end-table-rowgroup))
    (LIST
     . (org-odt-begin-list org-odt-end-list))
    (LIST-ITEM
     . (org-odt-begin-list-item org-odt-end-list-item))
    (OUTLINE
     . (org-odt-begin-outline org-odt-end-outline))
    (OUTLINE-TEXT
     . (org-odt-begin-outline-text org-odt-end-outline-text))
    (PARAGRAPH
     . (org-odt-begin-paragraph org-odt-end-paragraph)))
  "")

(defvar org-odt-entity-format-callbacks-alist
  `((EXTRA-TARGETS . org-lparse-format-extra-targets)
    (ORG-TAGS . org-lparse-format-org-tags)
    (SECTION-NUMBER . org-lparse-format-section-number)
    (HEADLINE . org-odt-format-headline)
    (TOC-ENTRY . org-odt-format-toc-entry)
    (TOC-ITEM . org-odt-format-toc-item)
    (TAGS . org-odt-format-tags)
    (SPACES . org-odt-format-spaces)
    (TABS . org-odt-format-tabs)
    (LINE-BREAK . org-odt-format-line-break)
    (FONTIFY . org-odt-format-fontify)
    (TODO . org-lparse-format-todo)
    (LINK . org-odt-format-link)
    (INLINE-IMAGE . org-odt-format-inline-image)
    (ORG-LINK . org-odt-format-org-link)
    (HEADING . org-odt-format-heading)
    (ANCHOR . org-odt-format-anchor)
    (TABLE . org-lparse-format-table)
    (TABLE-ROW . org-odt-format-table-row)
    (TABLE-CELL . org-odt-format-table-cell)
    (FOOTNOTES-SECTION . ignore)
    (FOOTNOTE-REFERENCE . org-odt-format-footnote-reference)
    (HORIZONTAL-LINE . org-odt-format-horizontal-line)
    (COMMENT . org-odt-format-comment)
    (LINE . org-odt-format-line)
    (ORG-ENTITY . org-odt-format-org-entity))
  "")

;;;_. callbacks
;;;_. control callbacks
;;;_ , document body
(defun org-odt-begin-office-body ()
  ;; automatic styles
  (insert-file-contents
   (or org-export-odt-content-template-file
       (expand-file-name "OrgOdtContentTemplate.xml"
			 org-odt-styles-dir)))
  (goto-char (point-min))
  (re-search-forward "</office:text>" nil nil)
  (delete-region (match-beginning 0) (point-max)))

;; Following variable is let bound when `org-do-lparse' is in
;; progress.  See org-html.el.
(defvar org-lparse-toc)
(defun org-odt-format-toc ()
  (if (not org-lparse-toc) "" (concat  "\n" org-lparse-toc "\n")))

(defun org-odt-format-preamble (opt-plist)
  (let* ((title (plist-get opt-plist :title))
	 (author (plist-get opt-plist :author))
	 (date (plist-get opt-plist :date))
	 (iso-date (org-odt-format-date date))
	 (date (org-odt-format-date date "%d %b %Y"))
	 (email (plist-get opt-plist :email))
	 ;; switch on or off above vars based on user settings
	 (author (and (plist-get opt-plist :author-info) (or author email)))
	 (email (and (plist-get opt-plist :email-info) email))
	 (date (and (plist-get opt-plist :time-stamp-file) date)))
    (concat
     ;; title
     (when title
       (concat
	(org-odt-format-stylized-paragraph
	 'title (org-odt-format-tags
		 '("<text:title>" . "</text:title>") title))
	;; separator
	"<text:p text:style-name=\"OrgTitle\"/>"))
     (cond
      ((and author (not email))
       ;; author only
       (concat
	(org-odt-format-stylized-paragraph
	 'subtitle
	 (org-odt-format-tags
	  '("<text:initial-creator>" . "</text:initial-creator>")
	  author))
	;; separator
	"<text:p text:style-name=\"OrgSubtitle\"/>"))
      ((and author email)
       ;; author and email
       (concat
	(org-odt-format-stylized-paragraph
	 'subtitle
	 (org-odt-format-link
	  (org-odt-format-tags
	   '("<text:initial-creator>" . "</text:initial-creator>")
	   author) (concat "mailto:" email)))
	;; separator
	"<text:p text:style-name=\"OrgSubtitle\"/>")))
     ;; date
     (when date
       (concat
	(org-odt-format-stylized-paragraph
	 'subtitle
	 (org-odt-format-tags
	  '("<text:date style:data-style-name=\"%s\" text:date-value=\"%s\">"
	    . "</text:date>") date "N75" iso-date))
	;; separator
	"<text:p text:style-name=\"OrgSubtitle\"/>")))))

(defun org-odt-begin-document-body (opt-plist)
  (org-odt-begin-office-body)
  (insert (org-odt-format-preamble opt-plist))
  (setq org-lparse-dyn-first-heading-pos (point)))

(defvar org-lparse-body-only)		; let bound during org-do-lparse
(defvar org-lparse-to-buffer)		; let bound during org-do-lparse
(defun org-odt-end-document-body (opt-plist)
  (unless org-lparse-body-only
    (org-lparse-insert-tag "</office:text>")
    (org-lparse-insert-tag "</office:body>")))

(defun org-odt-begin-document-content (opt-plist)
  (ignore))

(defun org-odt-end-document-content ()
  (org-lparse-insert-tag "</office:document-content>"))

(defun org-odt-begin-outline (level1 snumber title tags
				     target extra-targets class)
  (org-lparse-insert
   'HEADING (org-lparse-format
	     'HEADLINE title extra-targets tags snumber level1)
   level1 target))

(defun org-odt-end-outline ()
  (ignore))

(defun org-odt-begin-outline-text (level1 snumber class)
  (ignore))

(defun org-odt-end-outline-text ()
  (ignore))

(defun org-odt-begin-section (style &optional name)
  (let ((default-name (car (org-odt-add-automatic-style "Section"))))
    (org-lparse-insert-tag
     "<text:section text:style-name=\"%s\" text:name=\"%s\">"
     style (or name default-name))))

(defun org-odt-end-section ()
  (org-lparse-insert-tag "</text:section>"))

(defun org-odt-begin-paragraph (&optional style)
  (org-lparse-insert-tag
   "<text:p%s>" (org-odt-get-extra-attrs-for-paragraph-style style)))

(defun org-odt-end-paragraph ()
  (org-lparse-insert-tag "</text:p>"))

(defun org-odt-get-extra-attrs-for-paragraph-style (style)
  (let (style-name)
    (setq style-name
	  (cond
	   ((stringp style) style)
	   ((symbolp style) (org-odt-get-style-name-for-entity
			     'paragraph style))))
    (unless style-name
      (error "Don't know how to handle paragraph style %s" style))
    (format " text:style-name=\"%s\"" style-name)))

(defun org-odt-format-stylized-paragraph (style text)
  (org-odt-format-tags
   '("<text:p%s>" . "</text:p>") text
   (org-odt-get-extra-attrs-for-paragraph-style style)))

(defvar org-lparse-opt-plist)		    ; bound during org-do-lparse
(defun org-odt-format-author (&optional author)
  (when (setq author (or author (plist-get org-lparse-opt-plist :author)))
    (org-odt-format-tags '("<dc:creator>" . "</dc:creator>") author)))

(defun org-odt-format-date (&optional org-ts fmt)
  (save-match-data
    (let* ((time
	    (and (stringp org-ts)
		 (string-match org-ts-regexp0 org-ts)
		 (apply 'encode-time
			(org-fix-decoded-time
			 (org-parse-time-string (match-string 0 org-ts) t)))))
	   date)
      (cond
       (fmt (format-time-string fmt time))
       (t (setq date (format-time-string "%Y-%m-%dT%H:%M:%S%z" time))
	  (format "%s:%s" (substring date 0 -2) (substring date -2)))))))

(defun org-odt-begin-annotation (&optional author date)
  (org-lparse-insert-tag "<office:annotation>")
  (when (setq author (org-odt-format-author author))
    (insert author))
  (insert (org-odt-format-tags
	   '("<dc:date>" . "</dc:date>")
	   (org-odt-format-date
	    (or date (plist-get org-lparse-opt-plist :date)))))
  (org-lparse-begin-paragraph))

(defun org-odt-end-annotation ()
  (org-lparse-insert-tag  "</office:annotation>"))

(defun org-odt-begin-environment (style env-options-plist)
  (case style
    (annotation
     (org-lparse-stash-save-paragraph-state)
     (org-odt-begin-annotation (plist-get env-options-plist 'author)
			       (plist-get env-options-plist 'date)))
    ((blockquote verse center quote)
     (org-lparse-begin-paragraph style)
     (list))
    ((fixedwidth native)
     (org-lparse-end-paragraph)
     (list))
    (t (error "Unknown environment %s" style))))

(defun org-odt-end-environment (style env-options-plist)
  (case style
    (annotation
     (org-lparse-end-paragraph)
     (org-odt-end-annotation)
     (org-lparse-stash-pop-paragraph-state))
    ((blockquote verse center quote)
     (org-lparse-end-paragraph)
     (list))
    ((fixedwidth native)
     (org-lparse-begin-paragraph)
     (list))
    (t (error "Unknown environment %s" style))))

(defvar org-lparse-list-stack) ; dynamically bound in org-do-lparse
(defvar org-odt-list-stack-stashed)
(defun org-odt-begin-list (ltype)
  (setq ltype (or (org-lparse-html-list-type-to-canonical-list-type ltype)
		  ltype))
  (let* ((style-name (org-odt-get-style-name-for-entity 'list ltype))
	 (extra (concat (if (or org-lparse-list-table-p
				(and (= 1 (length org-lparse-list-stack))
				     (null org-odt-list-stack-stashed)))
			    " text:continue-numbering=\"false\""
			  " text:continue-numbering=\"true\"")
			(when style-name
			  (format " text:style-name=\"%s\""  style-name)))))
    (case ltype
      ((ordered unordered description)
       (org-lparse-end-paragraph)
       (org-lparse-insert-tag "<text:list%s>" extra))
      (t (error "Unknown list type: %s"  ltype)))))

(defun org-odt-end-list (ltype)
  (setq ltype (or (org-lparse-html-list-type-to-canonical-list-type ltype)
		  ltype))
  (if ltype
      (org-lparse-insert-tag "</text:list>")
    (error "Unknown list type: %s" ltype)))

(defun org-odt-begin-list-item (ltype &optional arg headline)
  (setq ltype (or (org-lparse-html-list-type-to-canonical-list-type ltype)
		  ltype))
  (case ltype
    (ordered
     (assert (not headline) t)
     (let* ((counter arg) (extra ""))
       (org-lparse-insert-tag (if (= (length org-lparse-list-stack)
				     (length org-odt-list-stack-stashed))
				  "<text:list-header>" "<text:list-item>"))
       (org-lparse-begin-paragraph)))
    (unordered
     (let* ((id arg) (extra ""))
       (org-lparse-insert-tag (if (= (length org-lparse-list-stack)
				     (length org-odt-list-stack-stashed))
				  "<text:list-header>" "<text:list-item>"))
       (org-lparse-begin-paragraph)
       (insert (if headline (org-odt-format-target headline id)
		 (org-odt-format-bookmark "" id)))))
    (description
     (assert (not headline) t)
     (let ((term (or arg "(no term)")))
       (insert
	(org-odt-format-tags
	 '("<text:list-item>" . "</text:list-item>")
	 (org-odt-format-stylized-paragraph 'definition-term term)))
       (org-lparse-begin-list-item 'unordered)
       (org-lparse-begin-list 'description)
       (org-lparse-begin-list-item 'unordered)))
    (t (error "Unknown list type"))))

(defun org-odt-end-list-item (ltype)
  (setq ltype (or (org-lparse-html-list-type-to-canonical-list-type ltype)
		  ltype))
  (case ltype
    ((ordered unordered)
     (org-lparse-insert-tag (if (= (length org-lparse-list-stack)
				   (length org-odt-list-stack-stashed))
				(prog1 "</text:list-header>"
				  (setq org-odt-list-stack-stashed nil))
			      "</text:list-item>")))
    (description
     (org-lparse-end-list-item-1)
     (org-lparse-end-list 'description)
     (org-lparse-end-list-item-1))
    (t (error "Unknown list type"))))

(defun org-odt-discontinue-list ()
  (let ((stashed-stack org-lparse-list-stack))
    (loop for list-type in stashed-stack
	  do (org-lparse-end-list-item-1 list-type)
	  (org-lparse-end-list list-type))
    (setq org-odt-list-stack-stashed stashed-stack)))

(defun org-odt-continue-list ()
  (setq org-odt-list-stack-stashed (nreverse org-odt-list-stack-stashed))
  (loop for list-type in org-odt-list-stack-stashed
	do (org-lparse-begin-list list-type)
	(org-lparse-begin-list-item list-type)))

;; Following variables are let bound when table emission is in
;; progress.  See org-lparse.el.
(defvar org-lparse-table-begin-marker)
(defvar org-lparse-table-ncols)
(defvar org-lparse-table-rowgrp-open)
(defvar org-lparse-table-rownum)
(defvar org-lparse-table-cur-rowgrp-is-hdr)
(defvar org-lparse-table-is-styled)
(defvar org-lparse-table-rowgrp-info)
(defvar org-lparse-table-colalign-vector)

(defvar org-odt-table-style nil
  "Table style specified by \"#+ATTR_ODT: <style-name>\" line.
This is set during `org-odt-begin-table'.")

(defvar org-odt-table-style-spec nil
  "Entry for `org-odt-table-style' in `org-export-odt-table-styles'.")

(defcustom org-export-odt-table-styles
  '(("OrgEquation" "OrgEquation"
     ((use-first-column-styles . t)
      (use-last-column-styles . t))))
  "Specify how Table Styles should be derived from a Table Template.
This is a list where each element is of the
form (TABLE-STYLE-NAME TABLE-TEMPLATE-NAME TABLE-CELL-OPTIONS).

TABLE-STYLE-NAME is the style associated with the table through
`org-odt-table-style'.

TABLE-TEMPLATE-NAME is a set of - upto 9 - automatic
TABLE-CELL-STYLE-NAMEs and PARAGRAPH-STYLE-NAMEs (as defined
below) that is included in
`org-export-odt-content-template-file'.

TABLE-CELL-STYLE-NAME := TABLE-TEMPLATE-NAME + TABLE-CELL-TYPE +
                         \"TableCell\"
PARAGRAPH-STYLE-NAME  := TABLE-TEMPLATE-NAME + TABLE-CELL-TYPE +
                         \"TableParagraph\"
TABLE-CELL-TYPE       := \"FirstRow\"   | \"LastColumn\" |
                         \"FirstRow\"   | \"LastRow\"    |
                         \"EvenRow\"    | \"OddRow\"     |
                         \"EvenColumn\" | \"OddColumn\"  | \"\"
where \"+\" above denotes string concatenation.

TABLE-CELL-OPTIONS is an alist where each element is of the
form (TABLE-CELL-STYLE-SELECTOR . ON-OR-OFF).
TABLE-CELL-STYLE-SELECTOR := `use-first-row-styles'       |
                             `use-last-row-styles'        |
                             `use-first-column-styles'    |
                             `use-last-column-styles'     |
                             `use-banding-rows-styles'    |
                             `use-banding-columns-styles' |
                             `use-first-row-styles'
ON-OR-OFF                 := `t' | `nil'

For example, with the following configuration

\(setq org-export-odt-table-styles
      '\(\(\"TableWithHeaderRowsAndColumns\" \"Custom\"
         \(\(use-first-row-styles . t\)
          \(use-first-column-styles . t\)\)\)
        \(\"TableWithHeaderColumns\" \"Custom\"
         \(\(use-first-column-styles . t\)\)\)\)\)

1. A table associated with \"TableWithHeaderRowsAndColumns\"
   style will use the following table-cell styles -
   \"CustomFirstRowTableCell\", \"CustomFirstColumnTableCell\",
   \"CustomTableCell\" and the following paragraph styles
   \"CustomFirstRowTableParagraph\",
   \"CustomFirstColumnTableParagraph\", \"CustomTableParagraph\"
   as appropriate.

2. A table associated with \"TableWithHeaderColumns\" style will
   use the following table-cell styles -
   \"CustomFirstColumnTableCell\", \"CustomTableCell\" and the
   following paragraph styles
   \"CustomFirstColumnTableParagraph\", \"CustomTableParagraph\"
   as appropriate..

Note that TABLE-TEMPLATE-NAME corresponds to the
\"<table:table-template>\" elements contained within
\"<office:styles>\".  The entries (TABLE-STYLE-NAME
TABLE-TEMPLATE-NAME TABLE-CELL-OPTIONS) correspond to
\"table:template-name\" and \"table:use-first-row-styles\" etc
attributes of \"<table:table>\" element.  Refer ODF-1.2
specification for more information.  Also consult the
implementation filed under `org-odt-get-table-cell-styles'.

The TABLE-STYLE-NAME \"OrgEquation\" is used internally for
formatting of numbered display equations.  Do not delete this
style from the list."
  :group 'org-export-odt
  :version "24.1"
  :type '(choice
          (const :tag "None" nil)
          (repeat :tag "Table Styles"
                  (list :tag "Table Style Specification"
			(string :tag "Table Style Name")
			(string  :tag "Table Template Name")
			(alist :options (use-first-row-styles
					 use-last-row-styles
					 use-first-column-styles
					 use-last-column-styles
					 use-banding-rows-styles
					 use-banding-columns-styles)
			       :key-type symbol
			       :value-type (const :tag "True" t))))))

(defvar org-odt-table-style-format
  "
<style:style style:name=\"%s\" style:family=\"table\">
  <style:table-properties style:rel-width=\"%d%%\" fo:margin-top=\"0cm\" fo:margin-bottom=\"0.20cm\" table:align=\"center\"/>
</style:style>
"
  "Template for auto-generated Table styles.")

(defvar org-odt-automatic-styles '()
  "Registry of automatic styles for various OBJECT-TYPEs.
The variable has the following form:
\(\(OBJECT-TYPE-A
  \(\(OBJECT-NAME-A.1 OBJECT-PROPS-A.1\)
   \(OBJECT-NAME-A.2 OBJECT-PROPS-A.2\) ...\)\)
 \(OBJECT-TYPE-B
  \(\(OBJECT-NAME-B.1 OBJECT-PROPS-B.1\)
   \(OBJECT-NAME-B.2 OBJECT-PROPS-B.2\) ...\)\)
 ...\).

OBJECT-TYPEs could be \"Section\", \"Table\", \"Figure\" etc.
OBJECT-PROPS is (typically) a plist created by passing
\"#+ATTR_ODT: \" option to `org-lparse-get-block-params'.

Use `org-odt-add-automatic-style' to add update this variable.'")

(defvar org-odt-object-counters nil
  "Running counters for various OBJECT-TYPEs.
Use this to generate automatic names and style-names.  See
`org-odt-add-automatic-style'.")

(defun org-odt-write-automatic-styles ()
  "Write automatic styles to \"content.xml\"."
  (with-current-buffer
      (find-file-noselect (expand-file-name "content.xml") t)
    ;; position the cursor
    (goto-char (point-min))
    (re-search-forward "  </office:automatic-styles>" nil t)
    (goto-char (match-beginning 0))
    ;; write automatic table styles
    (loop for (style-name props) in
	  (plist-get org-odt-automatic-styles 'Table) do
	  (when (setq props (or (plist-get props :rel-width) 96))
	    (insert (format org-odt-table-style-format style-name props))))))

(defun org-odt-add-automatic-style (object-type &optional object-props)
  "Create an automatic style of type OBJECT-TYPE with param OBJECT-PROPS.
OBJECT-PROPS is (typically) a plist created by passing
\"#+ATTR_ODT: \" option of the object in question to
`org-lparse-get-block-params'.

Use `org-odt-object-counters' to generate an automatic
OBJECT-NAME and STYLE-NAME.  If OBJECT-PROPS is non-nil, add a
new entry in `org-odt-automatic-styles'.  Return (OBJECT-NAME
. STYLE-NAME)."
  (assert (stringp object-type))
  (let* ((object (intern object-type))
	 (seqvar object)
	 (seqno (1+ (or (plist-get org-odt-object-counters seqvar) 0)))
	 (object-name (format "%s%d" object-type seqno)) style-name)
    (setq org-odt-object-counters
	  (plist-put org-odt-object-counters seqvar seqno))
    (when object-props
      (setq style-name (format "Org%s" object-name))
      (setq org-odt-automatic-styles
	    (plist-put org-odt-automatic-styles object
		       (append (list (list style-name object-props))
			       (plist-get org-odt-automatic-styles object)))))
    (cons object-name style-name)))

(defvar org-odt-table-indentedp nil)
(defun org-odt-begin-table (caption label attributes short-caption)
  (setq org-odt-table-indentedp (not (null org-lparse-list-stack)))
  (when org-odt-table-indentedp
    ;; Within the Org file, the table is appearing within a list item.
    ;; OpenDocument doesn't allow table to appear within list items.
    ;; Temporarily terminate the list, emit the table and then
    ;; re-continue the list.
    (org-odt-discontinue-list)
    ;; Put the Table in an indented section.
    (let ((level (length org-odt-list-stack-stashed)))
      (org-odt-begin-section (format "OrgIndentedSection-Level-%d" level))))
  (setq attributes (org-lparse-get-block-params attributes))
  (setq org-odt-table-style (plist-get attributes :style))
  (setq org-odt-table-style-spec
	(assoc org-odt-table-style org-export-odt-table-styles))
  (when (or label caption)
    (insert
     (org-odt-format-stylized-paragraph
      'table (org-odt-format-entity-caption label caption "__Table__"))))
  (let ((automatic-name (org-odt-add-automatic-style "Table" attributes)))
    (org-lparse-insert-tag
     "<table:table table:name=\"%s\" table:style-name=\"%s\">"
     (or short-caption (car automatic-name))
     (or (nth 1 org-odt-table-style-spec)
	 (cdr automatic-name) "OrgTable")))
  (setq org-lparse-table-begin-marker (point)))

(defvar org-lparse-table-colalign-info)
(defun org-odt-end-table ()
  (goto-char org-lparse-table-begin-marker)
  (loop for level from 0 below org-lparse-table-ncols
	do (let* ((col-cookie (and org-lparse-table-is-styled
				   (cdr (assoc (1+ level)
					       org-lparse-table-colalign-info))))
		  (extra-columns (or (nth 1 col-cookie) 0)))
	     (dotimes (i (1+ extra-columns))
	       (insert
		(org-odt-format-tags
		 "<table:table-column table:style-name=\"%sColumn\"/>"
		 "" (or (nth 1 org-odt-table-style-spec) "OrgTable"))))
	     (insert "\n")))
  ;; fill style attributes for table cells
  (when org-lparse-table-is-styled
    (while (re-search-forward "@@\\(table-cell:p\\|table-cell:style-name\\)@@\\([0-9]+\\)@@\\([0-9]+\\)@@" nil t)
      (let* ((spec (match-string 1))
	     (r (string-to-number (match-string 2)))
	     (c (string-to-number (match-string 3)))
	     (cell-styles (org-odt-get-table-cell-styles
			   r c org-odt-table-style-spec))
	     (table-cell-style (car cell-styles))
	     (table-cell-paragraph-style (cdr cell-styles)))
	(cond
	 ((equal spec "table-cell:p")
	  (replace-match table-cell-paragraph-style t t))
	 ((equal spec "table-cell:style-name")
	  (replace-match table-cell-style t t))))))
  (goto-char (point-max))
  (org-lparse-insert-tag "</table:table>")
  (when org-odt-table-indentedp
    (org-odt-end-section)
    (org-odt-continue-list)))

(defun org-odt-begin-table-rowgroup (&optional is-header-row)
  (when org-lparse-table-rowgrp-open
    (org-lparse-end 'TABLE-ROWGROUP))
  (org-lparse-insert-tag (if is-header-row
			     "<table:table-header-rows>"
			   "<table:table-rows>"))
  (setq org-lparse-table-rowgrp-open t)
  (setq org-lparse-table-cur-rowgrp-is-hdr is-header-row))

(defun org-odt-end-table-rowgroup ()
  (when org-lparse-table-rowgrp-open
    (setq org-lparse-table-rowgrp-open nil)
    (org-lparse-insert-tag
     (if org-lparse-table-cur-rowgrp-is-hdr
	 "</table:table-header-rows>" "</table:table-rows>"))))

(defun org-odt-format-table-row (row)
  (org-odt-format-tags
   '("<table:table-row>" . "</table:table-row>") row))

(defun org-odt-get-table-cell-styles (r c &optional style-spec)
  "Retrieve styles applicable to a table cell.
R and C are (zero-based) row and column numbers of the table
cell.  STYLE-SPEC is an entry in `org-export-odt-table-styles'
applicable to the current table.  It is `nil' if the table is not
associated with any style attributes.

Return a cons of (TABLE-CELL-STYLE-NAME . PARAGRAPH-STYLE-NAME).

When STYLE-SPEC is nil, style the table cell the conventional way
- choose cell borders based on row and column groupings and
choose paragraph alignment based on `org-col-cookies' text
property.  See also
`org-odt-get-paragraph-style-cookie-for-table-cell'.

When STYLE-SPEC is non-nil, ignore the above cookie and return
styles congruent with the ODF-1.2 specification."
  (cond
   (style-spec

    ;; LibreOffice - particularly the Writer - honors neither table
    ;; templates nor custom table-cell styles.  Inorder to retain
    ;; inter-operability with LibreOffice, only automatic styles are
    ;; used for styling of table-cells.  The current implementation is
    ;; congruent with ODF-1.2 specification and hence is
    ;; future-compatible.

    ;; Additional Note: LibreOffice's AutoFormat facility for tables -
    ;; which recognizes as many as 16 different cell types - is much
    ;; richer.  Unfortunately it is NOT amenable to easy configuration
    ;; by hand.

    (let* ((template-name (nth 1 style-spec))
	   (cell-style-selectors (nth 2 style-spec))
	   (cell-type
	    (cond
	     ((and (cdr (assoc 'use-first-column-styles cell-style-selectors))
		   (= c 0)) "FirstColumn")
	     ((and (cdr (assoc 'use-last-column-styles cell-style-selectors))
		   (= c (1- org-lparse-table-ncols))) "LastColumn")
	     ((and (cdr (assoc 'use-first-row-styles cell-style-selectors))
		   (= r 0)) "FirstRow")
	     ((and (cdr (assoc 'use-last-row-styles cell-style-selectors))
		   (= r org-lparse-table-rownum))
	      "LastRow")
	     ((and (cdr (assoc 'use-banding-rows-styles cell-style-selectors))
		   (= (% r 2) 1)) "EvenRow")
	     ((and (cdr (assoc 'use-banding-rows-styles cell-style-selectors))
		   (= (% r 2) 0)) "OddRow")
	     ((and (cdr (assoc 'use-banding-columns-styles cell-style-selectors))
		   (= (% c 2) 1)) "EvenColumn")
	     ((and (cdr (assoc 'use-banding-columns-styles cell-style-selectors))
		   (= (% c 2) 0)) "OddColumn")
	     (t ""))))
      (cons
       (concat template-name cell-type "TableCell")
       (concat template-name cell-type "TableParagraph"))))
   (t
    (cons
     (concat
      "OrgTblCell"
      (cond
       ((= r 0) "T")
       ((eq (cdr (assoc r org-lparse-table-rowgrp-info))  :start) "T")
       (t ""))
      (when (= r org-lparse-table-rownum) "B")
      (cond
       ((= c 0) "")
       ((or (memq (nth c org-table-colgroup-info) '(:start :startend))
	    (memq (nth (1- c) org-table-colgroup-info) '(:end :startend))) "L")
       (t "")))
     (capitalize (aref org-lparse-table-colalign-vector c))))))

(defun org-odt-get-paragraph-style-cookie-for-table-cell (r c)
  (concat
   (and (not org-odt-table-style-spec)
	(cond
	 (org-lparse-table-cur-rowgrp-is-hdr "OrgTableHeading")
	 ((and (= c 0) (org-lparse-get 'TABLE-FIRST-COLUMN-AS-LABELS))
	  "OrgTableHeading")
	 (t "OrgTableContents")))
   (and org-lparse-table-is-styled
	(format "@@table-cell:p@@%03d@@%03d@@" r c))))

(defun org-odt-get-style-name-cookie-for-table-cell (r c)
  (when org-lparse-table-is-styled
    (format "@@table-cell:style-name@@%03d@@%03d@@" r c)))

(defun org-odt-format-table-cell (data r c horiz-span)
  (concat
   (let* ((paragraph-style-cookie
	   (org-odt-get-paragraph-style-cookie-for-table-cell r c))
	  (style-name-cookie
	   (org-odt-get-style-name-cookie-for-table-cell r c))
	  (extra (and style-name-cookie
		      (format " table:style-name=\"%s\""  style-name-cookie)))
	  (extra (concat extra
			 (and (> horiz-span 0)
			      (format " table:number-columns-spanned=\"%d\""
				      (1+ horiz-span))))))
     (org-odt-format-tags
      '("<table:table-cell%s>" . "</table:table-cell>")
      (if org-lparse-list-table-p data
	(org-odt-format-stylized-paragraph paragraph-style-cookie data)) extra))
   (let (s)
     (dotimes (i horiz-span)
       (setq s (concat s "\n<table:covered-table-cell/>"))) s)
   "\n"))

(defun org-odt-begin-footnote-definition (n)
  (org-lparse-begin-paragraph 'footnote))

(defun org-odt-end-footnote-definition (n)
  (org-lparse-end-paragraph))

(defun org-odt-begin-toc (lang-specific-heading max-level)
  ;; Strings in `org-export-language-setup' can contain named html
  ;; entities.  Replace those with utf-8 equivalents.
  (let ((i 0) entity rpl)
    (while (string-match "&\\([^#].*?\\);" lang-specific-heading i)
      (setq entity (match-string 1 lang-specific-heading))
      (if (not (setq rpl (org-entity-get-representation entity 'utf8)))
	  (setq i (match-end 0))
	(setq i (+ (match-beginning 0) (length rpl)))
	(setq lang-specific-heading
	      (replace-match rpl t t lang-specific-heading)))))
  (insert
   (format "
    <text:table-of-content text:style-name=\"Sect2\" text:protected=\"true\" text:name=\"Table of Contents1\">
     <text:table-of-content-source text:outline-level=\"%d\">
      <text:index-title-template text:style-name=\"Contents_20_Heading\">%s</text:index-title-template>
" max-level lang-specific-heading))
  (loop for level from 1 upto 10
	do (insert (format
		    "
      <text:table-of-content-entry-template text:outline-level=\"%d\" text:style-name=\"Contents_20_%d\">
       <text:index-entry-link-start text:style-name=\"Internet_20_link\"/>
       <text:index-entry-chapter/>
       <text:index-entry-text/>
       <text:index-entry-link-end/>
      </text:table-of-content-entry-template>
" level level)))

  (insert
   (format  "
     </text:table-of-content-source>

     <text:index-body>
      <text:index-title text:style-name=\"Sect1\" text:name=\"Table of Contents1_Head\">
       <text:p text:style-name=\"Contents_20_Heading\">%s</text:p>
      </text:index-title>
" lang-specific-heading)))

(defun org-odt-end-toc ()
  (insert "
     </text:index-body>
    </text:table-of-content>
"))

(defun org-odt-format-toc-entry (snumber todo headline tags href)
  (setq headline (concat
		  (and org-export-with-section-numbers
		       (concat snumber ". "))
		  headline
		  (and tags
		       (concat
			(org-lparse-format 'SPACES 3)
			(org-lparse-format 'FONTIFY tags "tag")))))
  (when todo
    (setq headline (org-lparse-format 'FONTIFY headline "todo")))

  (let ((org-odt-suppress-xref t))
    (org-odt-format-link headline (concat  "#" href))))

(defun org-odt-format-toc-item (toc-entry level org-last-level)
  (let ((style (format "Contents_20_%d"
		       (+ level (or (org-lparse-get 'TOPLEVEL-HLEVEL) 1) -1))))
    (insert "\n" (org-odt-format-stylized-paragraph style toc-entry) "\n")))

;; Following variable is let bound during 'ORG-LINK callback.  See
;; org-html.el
(defvar org-lparse-link-description-is-image nil)
(defun org-odt-format-link (desc href &optional attr)
  (cond
   ((and (= (string-to-char href) ?#) (not org-odt-suppress-xref))
    (setq href (substring href 1))
    (let ((xref-format "text"))
      (when (numberp desc)
	(setq desc (format "%d" desc) xref-format "number"))
      (when (listp desc)
	(setq desc (mapconcat 'identity desc ".") xref-format "chapter"))
      (setq href (concat org-export-odt-bookmark-prefix href))
      (org-odt-format-tags
       '("<text:bookmark-ref text:reference-format=\"%s\" text:ref-name=\"%s\">" .
	 "</text:bookmark-ref>")
       desc xref-format href)))
   (org-lparse-link-description-is-image
    (org-odt-format-tags
     '("<draw:a xlink:type=\"simple\" xlink:href=\"%s\" %s>" . "</draw:a>")
     desc href (or attr "")))
   (t
    (org-odt-format-tags
     '("<text:a xlink:type=\"simple\" xlink:href=\"%s\" %s>" . "</text:a>")
     desc href (or attr "")))))

(defun org-odt-format-spaces (n)
  (cond
   ((= n 1) " ")
   ((> n 1) (concat
	     " " (org-odt-format-tags "<text:s text:c=\"%d\"/>" "" (1- n))))
   (t "")))

(defun org-odt-format-tabs (&optional n)
  (let ((tab "<text:tab/>")
	(n (or n 1)))
    (insert tab)))

(defun org-odt-format-line-break ()
  (org-odt-format-tags "<text:line-break/>" ""))

(defun org-odt-format-horizontal-line ()
  (org-odt-format-stylized-paragraph 'horizontal-line ""))

(defun org-odt-encode-plain-text (line &optional no-whitespace-filling)
  (setq line (org-xml-encode-plain-text line))
  (if no-whitespace-filling line
    (org-odt-fill-tabs-and-spaces line)))

(defun org-odt-format-line (line)
  (case org-lparse-dyn-current-environment
    (fixedwidth (concat
		 (org-odt-format-stylized-paragraph
		  'fixedwidth (org-odt-encode-plain-text line)) "\n"))
    (t (concat line "\n"))))

(defun org-odt-format-comment (fmt &rest args)
  (let ((comment (apply 'format fmt args)))
    (format "\n<!-- %s  -->\n" comment)))

(defun org-odt-format-org-entity (wd)
  (org-entity-get-representation wd 'utf8))

(defun org-odt-fill-tabs-and-spaces (line)
  (replace-regexp-in-string
   "\\([\t]\\|\\([ ]+\\)\\)" (lambda (s)
			       (cond
				((string= s "\t") (org-odt-format-tabs))
				(t (org-odt-format-spaces (length s))))) line))

(defcustom org-export-odt-fontify-srcblocks t
  "Specify whether or not source blocks need to be fontified.
Turn this option on if you want to colorize the source code
blocks in the exported file.  For colorization to work, you need
to make available an enhanced version of `htmlfontify' library."
  :type 'boolean
  :group 'org-export-odt
  :version "24.1")

(defun org-odt-format-source-line-with-line-number-and-label
  (line rpllbl num fontifier par-style)

  (let ((keep-label (not (numberp rpllbl)))
	(ref (org-find-text-property-in-string 'org-coderef line)))
    (setq line (concat line (and keep-label ref (format "(%s)" ref))))
    (setq line (funcall fontifier line))
    (when ref
      (setq line (org-odt-format-target line (concat "coderef-" ref))))
    (setq line (org-odt-format-stylized-paragraph par-style line))
    (if (not num) line
      (org-odt-format-tags '("<text:list-item>" . "</text:list-item>") line))))

(defun org-odt-format-source-code-or-example-plain
  (lines lang caption textareap cols rows num cont rpllbl fmt)
  "Format source or example blocks much like fixedwidth blocks.
Use this when `org-export-odt-fontify-srcblocks' option is turned
off."
  (let* ((lines (org-split-string lines "[\r\n]"))
	 (line-count (length lines))
	 (i 0))
    (mapconcat
     (lambda (line)
       (incf i)
       (org-odt-format-source-line-with-line-number-and-label
	line rpllbl num 'org-odt-encode-plain-text
	(if (= i line-count) "OrgFixedWidthBlockLastLine"
	  "OrgFixedWidthBlock")))
     lines "\n")))

(defvar org-src-block-paragraph-format
  "<style:style style:name=\"OrgSrcBlock\" style:family=\"paragraph\" style:parent-style-name=\"Preformatted_20_Text\">
   <style:paragraph-properties fo:background-color=\"%s\" fo:padding=\"0.049cm\" fo:border=\"0.51pt solid #000000\" style:shadow=\"none\">
    <style:background-image/>
   </style:paragraph-properties>
   <style:text-properties fo:color=\"%s\"/>
  </style:style>"
  "Custom paragraph style for colorized source and example blocks.
This style is much the same as that of \"OrgFixedWidthBlock\"
except that the foreground and background colors are set
according to the default face identified by the `htmlfontify'.")

(defvar hfy-optimisations)
(declare-function hfy-face-to-style "htmlfontify" (fn))
(declare-function hfy-face-or-def-to-name "htmlfontify" (fn))

(defun org-odt-hfy-face-to-css (fn)
  "Create custom style for face FN.
When FN is the default face, use it's foreground and background
properties to create \"OrgSrcBlock\" paragraph style.  Otherwise
use it's color attribute to create a character style whose name
is obtained from FN.  Currently all attributes of FN other than
color are ignored.

The style name for a face FN is derived using the following
operations on the face name in that order - de-dash, CamelCase
and prefix with \"OrgSrc\".  For example,
`font-lock-function-name-face' is associated with
\"OrgSrcFontLockFunctionNameFace\"."
  (let* ((css-list (hfy-face-to-style fn))
	 (style-name ((lambda (fn)
			(concat "OrgSrc"
				(mapconcat
				 'capitalize (split-string
					      (hfy-face-or-def-to-name fn) "-")
				 ""))) fn))
	 (color-val (cdr (assoc "color" css-list)))
	 (background-color-val (cdr (assoc "background" css-list)))
	 (style (and org-export-odt-create-custom-styles-for-srcblocks
		     (cond
		      ((eq fn 'default)
		       (format org-src-block-paragraph-format
			       background-color-val color-val))
		      (t
		       (format
			"
<style:style style:name=\"%s\" style:family=\"text\">
  <style:text-properties fo:color=\"%s\"/>
 </style:style>" style-name color-val))))))
    (cons style-name style)))

(defun org-odt-insert-custom-styles-for-srcblocks (styles)
  "Save STYLES used for colorizing of source blocks.
Update styles.xml with styles that were collected as part of
`org-odt-hfy-face-to-css' callbacks."
  (when styles
    (with-current-buffer
	(find-file-noselect (expand-file-name "styles.xml") t)
      (goto-char (point-min))
      (when (re-search-forward "</office:styles>" nil t)
	(goto-char (match-beginning 0))
	(insert "\n<!-- Org Htmlfontify Styles -->\n" styles "\n")))))

(defun org-odt-format-source-code-or-example-colored
  (lines lang caption textareap cols rows num cont rpllbl fmt)
  "Format source or example blocks using `htmlfontify-string'.
Use this routine when `org-export-odt-fontify-srcblocks' option
is turned on."
  (let* ((lang-m (and lang (or (cdr (assoc lang org-src-lang-modes)) lang)))
	 (mode (and lang-m (intern (concat (if (symbolp lang-m)
					       (symbol-name lang-m)
					     lang-m) "-mode"))))
	 (org-inhibit-startup t)
	 (org-startup-folded nil)
	 (lines (with-temp-buffer
		  (insert lines)
		  (if (functionp mode) (funcall mode) (fundamental-mode))
		  (font-lock-fontify-buffer)
		  (buffer-string)))
	 (hfy-html-quote-regex "\\([<\"&> 	]\\)")
	 (hfy-html-quote-map '(("\"" "&quot;")
			       ("<" "&lt;")
			       ("&" "&amp;")
			       (">" "&gt;")
			       (" " "<text:s/>")
			       ("	" "<text:tab/>")))
	 (hfy-face-to-css 'org-odt-hfy-face-to-css)
	 (hfy-optimisations-1 (copy-sequence hfy-optimisations))
	 (hfy-optimisations (add-to-list 'hfy-optimisations-1
					 'body-text-only))
	 (hfy-begin-span-handler
	  (lambda (style text-block text-id text-begins-block-p)
	    (insert (format "<text:span text:style-name=\"%s\">" style))))
	 (hfy-end-span-handler (lambda nil (insert "</text:span>"))))
    (when (fboundp 'htmlfontify-string)
      (let* ((lines (org-split-string lines "[\r\n]"))
	     (line-count (length lines))
	     (i 0))
	(mapconcat
	 (lambda (line)
	   (incf i)
	   (org-odt-format-source-line-with-line-number-and-label
	    line rpllbl num 'htmlfontify-string
	    (if (= i line-count) "OrgSrcBlockLastLine" "OrgSrcBlock")))
	 lines "\n")))))

(defun org-odt-format-source-code-or-example (lines lang caption textareap
						    cols rows num cont
						    rpllbl fmt)
  "Format source or example blocks for export.
Use `org-odt-format-source-code-or-example-plain' or
`org-odt-format-source-code-or-example-colored' depending on the
value of `org-export-odt-fontify-srcblocks."
  (setq lines (org-export-number-lines
	       lines 0 0 num cont rpllbl fmt 'preprocess)
	lines (funcall
	       (or (and org-export-odt-fontify-srcblocks
			(or (featurep 'htmlfontify)
			    ;; htmlfontify.el was introduced in Emacs 23.2
			    ;; So load it with some caution
			    (require 'htmlfontify nil t))
			(fboundp 'htmlfontify-string)
			'org-odt-format-source-code-or-example-colored)
		   'org-odt-format-source-code-or-example-plain)
	       lines lang caption textareap cols rows num cont rpllbl fmt))
  (if (not num) lines
    (let ((extra (format " text:continue-numbering=\"%s\""
			 (if cont "true" "false"))))
      (org-odt-format-tags
       '("<text:list text:style-name=\"OrgSrcBlockNumberedLine\"%s>"
	 . "</text:list>") lines extra))))

(defun org-odt-remap-stylenames (style-name)
  (or
   (cdr (assoc style-name '(("timestamp-wrapper" . "OrgTimestampWrapper")
			    ("timestamp" . "OrgTimestamp")
			    ("timestamp-kwd" . "OrgTimestampKeyword")
			    ("tag" . "OrgTag")
			    ("todo" . "OrgTodo")
			    ("done" . "OrgDone")
			    ("target" . "OrgTarget"))))
   style-name))

(defun org-odt-format-fontify (text style &optional id)
  (let* ((style-name
	  (cond
	   ((stringp style)
	    (org-odt-remap-stylenames style))
	   ((symbolp style)
	    (org-odt-get-style-name-for-entity 'character style))
	   ((listp style)
	    (assert (< 1 (length style)))
	    (let ((parent-style (pop style)))
	      (mapconcat (lambda (s)
			   ;; (assert (stringp s) t)
			   (org-odt-remap-stylenames s)) style "")
	      (org-odt-remap-stylenames parent-style)))
	   (t (error "Don't how to handle style %s"  style)))))
    (org-odt-format-tags
     '("<text:span text:style-name=\"%s\">" . "</text:span>")
     text style-name)))

(defun org-odt-relocate-relative-path (path dir)
  (if (file-name-absolute-p path) path
    (file-relative-name (expand-file-name path dir)
			(expand-file-name "eyecandy" dir))))

(defun org-odt-format-inline-image (thefile)
  (let* ((thelink (if (file-name-absolute-p thefile) thefile
		    (org-xml-format-href
		     (org-odt-relocate-relative-path
		      thefile org-current-export-file))))
	 (href
	  (org-odt-format-tags
	   "<draw:image xlink:href=\"%s\" xlink:type=\"simple\" xlink:show=\"embed\" xlink:actuate=\"onLoad\"/>" ""
	   (if org-export-odt-embed-images
	       (org-odt-copy-image-file thefile) thelink))))
    (org-export-odt-format-image thefile href)))

(defvar org-odt-entity-labels-alist nil
  "Associate Labels with the Labeled entities.
Each element of the alist is of the form (LABEL-NAME
CATEGORY-NAME SEQNO LABEL-STYLE-NAME).  LABEL-NAME is same as
that specified by \"#+LABEL: ...\" line.  CATEGORY-NAME is the
type of the entity that LABEL-NAME is attached to.  CATEGORY-NAME
can be one of \"Table\", \"Figure\" or \"Equation\".  SEQNO is
the unique number assigned to the referenced entity on a
per-CATEGORY basis.  It is generated sequentially and is 1-based.
LABEL-STYLE-NAME is a key `org-odt-label-styles'.

See `org-odt-add-label-definition' and
`org-odt-fixup-label-references'.")

(defun org-export-odt-format-formula (src href)
  (save-match-data
    (let* ((caption (org-find-text-property-in-string 'org-caption src))
	   (short-caption
	    (or (org-find-text-property-in-string 'org-caption-shortn src)
		caption))
	   (caption (and caption (org-xml-format-desc caption)))
	   (short-caption (and short-caption
			       (org-xml-encode-plain-text short-caption)))
	   (label (org-find-text-property-in-string 'org-label src))
	   (latex-frag (org-find-text-property-in-string 'org-latex-src src))
	   (embed-as (or (and latex-frag
			      (org-find-text-property-in-string
			       'org-latex-src-embed-type src))
			 (if (or caption label) 'paragraph 'character)))
	   width height)
      (when latex-frag
	(setq href (org-propertize href :title "LaTeX Fragment"
				   :description latex-frag)))
      (cond
       ((eq embed-as 'character)
	(org-odt-format-entity "InlineFormula" href width height))
       (t
	(org-lparse-end-paragraph)
	(org-lparse-insert-list-table
	 `((,(org-odt-format-entity
	      (if (not (or caption label)) "DisplayFormula"
		"CaptionedDisplayFormula")
	      href width height :caption caption :label label
	      :short-caption short-caption)
	    ,(if (not (or caption label)) ""
	       (let* ((label-props (car org-odt-entity-labels-alist)))
		 (setcar (last label-props) "math-label")
		 (apply 'org-odt-format-label-definition
			caption label-props)))))
	 nil nil nil ":style \"OrgEquation\"" nil '((1 "c" 8) (2 "c" 1)))
	(throw 'nextline nil))))))

(defvar org-odt-embedded-formulas-count 0)
(defun org-odt-copy-formula-file (path)
  "Returns the internal name of the file"
  (let* ((src-file (expand-file-name
		    path (file-name-directory org-current-export-file)))
	 (target-dir (format "Formula-%04d/"
			     (incf org-odt-embedded-formulas-count)))
	 (target-file (concat target-dir "content.xml")))
    (when (not org-lparse-to-buffer)
      (message "Embedding %s as %s ..."
	       (substring-no-properties path) target-file)

      (make-directory target-dir)
      (org-odt-create-manifest-file-entry
       "application/vnd.oasis.opendocument.formula" target-dir "1.2")

      (case (org-odt-is-formula-link-p src-file)
	(mathml
	 (copy-file src-file target-file 'overwrite))
	(odf
	 (org-odt-zip-extract-one src-file "content.xml" target-dir))
	(t
	 (error "%s is not a formula file" src-file)))

      (org-odt-create-manifest-file-entry "text/xml" target-file))
    target-file))

(defun org-odt-format-inline-formula (thefile)
  (let* ((thelink (if (file-name-absolute-p thefile) thefile
		    (org-xml-format-href
		     (org-odt-relocate-relative-path
		      thefile org-current-export-file))))
	 (href
	  (org-odt-format-tags
	   "<draw:object xlink:href=\"%s\" xlink:type=\"simple\" xlink:show=\"embed\" xlink:actuate=\"onLoad\"/>" ""
	   (file-name-directory (org-odt-copy-formula-file thefile)))))
    (org-export-odt-format-formula thefile href)))

(defun org-odt-is-formula-link-p (file)
  (let ((case-fold-search nil))
    (cond
     ((string-match "\\.\\(mathml\\|mml\\)\\'" file)
      'mathml)
     ((string-match "\\.odf\\'" file)
      'odf))))

(defun org-odt-format-org-link (opt-plist type-1 path fragment desc attr
					  descp)
  "Make a OpenDocument link.
OPT-PLIST is an options list.
TYPE-1 is the device-type of the link (THIS://foo.html).
PATH is the path of the link (http://THIS#location).
FRAGMENT is the fragment part of the link, if any (foo.html#THIS).
DESC is the link description, if any.
ATTR is a string of other attributes of the a element."
  (declare (special org-lparse-par-open))
  (save-match-data
    (let* ((may-inline-p
	    (and (member type-1 '("http" "https" "file"))
		 (org-lparse-should-inline-p path descp)
		 (not fragment)))
	   (type (if (equal type-1 "id") "file" type-1))
	   (filename path)
	   (thefile path)
	   sec-frag sec-nos)
      (cond
       ;; check for inlined images
       ((and (member type '("file"))
	     (not fragment)
	     (org-file-image-p
	      filename org-export-odt-inline-image-extensions)
	     (or (eq t org-export-odt-inline-images)
		 (and org-export-odt-inline-images (not descp))))
	(org-odt-format-inline-image thefile))
       ;; check for embedded formulas
       ((and (member type '("file"))
	     (not fragment)
	     (org-odt-is-formula-link-p filename)
	     (or (not descp)))
	(org-odt-format-inline-formula thefile))
       ;; code references
       ((string= type "coderef")
	(let* ((ref fragment)
	       (lineno-or-ref (cdr (assoc ref org-export-code-refs)))
	       (desc (and descp desc))
	       (org-odt-suppress-xref nil)
	       (href (org-xml-format-href (concat "#coderef-" ref))))
	  (cond
	   ((and (numberp lineno-or-ref) (not desc))
	    (org-odt-format-link lineno-or-ref href))
	   ((and (numberp lineno-or-ref) desc
		 (string-match (regexp-quote (concat "(" ref ")")) desc))
	    (format (replace-match "%s" t t desc)
		    (org-odt-format-link lineno-or-ref href)))
	   (t
	    (setq desc (format
			(if (and desc (string-match
				       (regexp-quote (concat "(" ref ")"))
				       desc))
			    (replace-match "%s" t t desc)
			  (or desc "%s"))
			lineno-or-ref))
	    (org-odt-format-link (org-xml-format-desc desc) href)))))
       ;; links to headlines
       ((and (string= type "")
	     (or (not thefile) (string= thefile ""))
	     (plist-get org-lparse-opt-plist :section-numbers)
	     (setq sec-frag fragment)
	     (or (string-match  "\\`sec\\(\\(-[0-9]+\\)+\\)" sec-frag)
		 (and (setq sec-frag
			    (loop for alias in org-export-target-aliases do
				  (when (member fragment (cdr alias))
				    (return (car alias)))))
		      (string-match  "\\`sec\\(\\(-[0-9]+\\)+\\)" sec-frag)))
	     (setq sec-nos (org-split-string (match-string 1 sec-frag) "-"))
	     (<= (length sec-nos) (plist-get org-lparse-opt-plist
					     :headline-levels)))
	(let ((org-odt-suppress-xref nil))
	  (org-odt-format-link sec-nos (concat "#" sec-frag) attr)))
       (t
	(when (string= type "file")
	  (setq thefile
		(cond
		 ((file-name-absolute-p path)
		  (concat "file://" (expand-file-name path)))
		 (t (org-odt-relocate-relative-path
		     thefile org-current-export-file)))))

	(when (and (member type '("" "http" "https" "file")) fragment)
	  (setq thefile (concat thefile "#" fragment)))

	(setq thefile (org-xml-format-href thefile))

	(when (not (member type '("" "file")))
	  (setq thefile (concat type ":" thefile)))

	(let ((org-odt-suppress-xref nil))
	  (org-odt-format-link
	   (org-xml-format-desc desc) thefile attr)))))))

(defun org-odt-format-heading (text level &optional id)
  (let* ((text (if id (org-odt-format-target text id) text)))
    (org-odt-format-tags
     '("<text:h text:style-name=\"Heading_20_%s\" text:outline-level=\"%s\">" .
       "</text:h>") text level level)))

(defun org-odt-format-headline (title extra-targets tags
				      &optional snumber level)
  (concat
   (org-lparse-format 'EXTRA-TARGETS extra-targets)

   ;; No need to generate section numbers.  They are auto-generated by
   ;; the application

   ;; (concat (org-lparse-format 'SECTION-NUMBER snumber level) " ")
   title
   (and tags (concat (org-lparse-format 'SPACES 3)
		     (org-lparse-format 'ORG-TAGS tags)))))

(defun org-odt-format-anchor (text name &optional class)
  (org-odt-format-target text name))

(defun org-odt-format-bookmark (text id)
  (if id
      (org-odt-format-tags "<text:bookmark text:name=\"%s\"/>" text id)
    text))

(defun org-odt-format-target (text id)
  (let ((name (concat org-export-odt-bookmark-prefix id)))
    (concat
     (and id (org-odt-format-tags
	      "<text:bookmark-start text:name=\"%s\"/>" "" name))
     (org-odt-format-bookmark text id)
     (and id (org-odt-format-tags
	      "<text:bookmark-end text:name=\"%s\"/>" "" name)))))

(defun org-odt-format-footnote (n def)
  (let ((id (concat  "fn" n))
	(note-class "footnote")
	(par-style "Footnote"))
    (org-odt-format-tags
     '("<text:note text:id=\"%s\" text:note-class=\"%s\">" .
       "</text:note>")
     (concat
      (org-odt-format-tags
       '("<text:note-citation>" . "</text:note-citation>")
       n)
      (org-odt-format-tags
       '("<text:note-body>" . "</text:note-body>")
       def))
     id note-class)))

(defun org-odt-format-footnote-reference (n def refcnt)
  (if (= refcnt 1)
      (org-odt-format-footnote n def)
    (org-odt-format-footnote-ref n)))

(defun org-odt-format-footnote-ref (n)
  (let ((note-class "footnote")
	(ref-format "text")
	(ref-name (concat "fn" n)))
    (org-odt-format-tags
     '("<text:span text:style-name=\"%s\">" . "</text:span>")
     (org-odt-format-tags
      '("<text:note-ref text:note-class=\"%s\" text:reference-format=\"%s\" text:ref-name=\"%s\">" . "</text:note-ref>")
      n note-class ref-format ref-name)
     "OrgSuperscript")))

(defun org-odt-get-image-name (file-name)
  (require 'sha1)
  (file-relative-name
   (expand-file-name
    (concat (sha1 file-name) "." (file-name-extension file-name)) "Pictures")))

(defun org-export-odt-format-image (src href)
  "Create image tag with source and attributes."
  (save-match-data
    (let* ((caption (org-find-text-property-in-string 'org-caption src))
	   (short-caption
	    (or (org-find-text-property-in-string 'org-caption-shortn src)
		caption))
	   (caption (and caption (org-xml-format-desc caption)))
	   (short-caption (and short-caption
			       (org-xml-encode-plain-text short-caption)))
	   (attr (org-find-text-property-in-string 'org-attributes src))
	   (label (org-find-text-property-in-string 'org-label src))
	   (latex-frag (org-find-text-property-in-string
			'org-latex-src src))
	   (category (and latex-frag "__DvipngImage__"))
	   (attr-plist (org-lparse-get-block-params attr))
	   (user-frame-anchor
	    (car (assoc-string (plist-get attr-plist :anchor)
			       '(("as-char") ("paragraph") ("page")) t)))
	   (user-frame-style
	    (and user-frame-anchor (plist-get attr-plist :style)))
	   (user-frame-attrs
	    (and user-frame-anchor (plist-get attr-plist :attributes)))
	   (user-frame-params
	    (list user-frame-style user-frame-attrs user-frame-anchor))
	   (embed-as (cond
		      (latex-frag
		       (symbol-name
			(case (org-find-text-property-in-string
			       'org-latex-src-embed-type src)
			  (paragraph 'paragraph)
			  (t 'as-char))))
		      (user-frame-anchor)
		      (t "paragraph")))
	   (size (org-odt-image-size-from-file
		  src (plist-get attr-plist :width)
		  (plist-get attr-plist :height)
		  (plist-get attr-plist :scale) nil embed-as))
	   (width (car size)) (height (cdr size)))
      (when latex-frag
	(setq href (org-propertize href :title "LaTeX Fragment"
				   :description latex-frag)))
      (let ((frame-style-handle (concat (and (or caption label) "Captioned")
					embed-as "Image")))
	(org-odt-format-entity
	 frame-style-handle href width height
	 :caption caption :label label :category category
	 :short-caption short-caption
	 :user-frame-params user-frame-params)))))

(defun org-odt-format-object-description (title description)
  (concat (and title (org-odt-format-tags
		      '("<svg:title>" . "</svg:title>")
		      (org-odt-encode-plain-text title t)))
	  (and description (org-odt-format-tags
			    '("<svg:desc>" . "</svg:desc>")
			    (org-odt-encode-plain-text description t)))))

(defun org-odt-format-frame (text width height style &optional
				  extra anchor-type)
  (let ((frame-attrs
	 (concat
	  (if width (format " svg:width=\"%0.2fcm\"" width) "")
	  (if height (format " svg:height=\"%0.2fcm\"" height) "")
	  extra
	  (format " text:anchor-type=\"%s\"" (or anchor-type "paragraph")))))
    (org-odt-format-tags
     '("<draw:frame draw:style-name=\"%s\"%s>" . "</draw:frame>")
     (concat text (org-odt-format-object-description
		   (get-text-property 0 :title text)
		   (get-text-property 0 :description text)))
     style frame-attrs)))

(defun org-odt-format-textbox (text width height style &optional
				    extra anchor-type)
  (org-odt-format-frame
   (org-odt-format-tags
    '("<draw:text-box %s>" . "</draw:text-box>")
    text (concat (format " fo:min-height=\"%0.2fcm\"" (or height .2))
		 (unless width
		   (format " fo:min-width=\"%0.2fcm\"" (or width .2)))))
   width nil style extra anchor-type))

(defun org-odt-format-inlinetask (heading content
					  &optional todo priority tags)
  (org-odt-format-stylized-paragraph
   nil (org-odt-format-textbox
	(concat (org-odt-format-stylized-paragraph
		 "OrgInlineTaskHeading"
		 (org-lparse-format
		  'HEADLINE (concat (org-lparse-format-todo todo) " " heading)
		  nil tags))
		content) nil nil "OrgInlineTaskFrame" " style:rel-width=\"100%\"")))

(defvar org-odt-entity-frame-styles
  '(("As-CharImage" "__Figure__" ("OrgInlineImage" nil "as-char"))
    ("ParagraphImage" "__Figure__" ("OrgDisplayImage" nil "paragraph"))
    ("PageImage" "__Figure__" ("OrgPageImage" nil "page"))
    ("CaptionedAs-CharImage" "__Figure__"
     ("OrgCaptionedImage"
      " style:rel-width=\"100%\" style:rel-height=\"scale\"" "paragraph")
     ("OrgInlineImage" nil "as-char"))
    ("CaptionedParagraphImage" "__Figure__"
     ("OrgCaptionedImage"
      " style:rel-width=\"100%\" style:rel-height=\"scale\"" "paragraph")
     ("OrgImageCaptionFrame" nil "paragraph"))
    ("CaptionedPageImage" "__Figure__"
     ("OrgCaptionedImage"
      " style:rel-width=\"100%\" style:rel-height=\"scale\"" "paragraph")
     ("OrgPageImageCaptionFrame" nil "page"))
    ("InlineFormula" "__MathFormula__" ("OrgInlineFormula" nil "as-char"))
    ("DisplayFormula" "__MathFormula__" ("OrgDisplayFormula" nil "as-char"))
    ("CaptionedDisplayFormula" "__MathFormula__"
     ("OrgCaptionedFormula" nil "paragraph")
     ("OrgFormulaCaptionFrame" nil "as-char"))))

(defun org-odt-merge-frame-params(default-frame-params user-frame-params)
  (if (not user-frame-params) default-frame-params
    (assert (= (length default-frame-params) 3))
    (assert (= (length user-frame-params) 3))
    (loop for user-frame-param in user-frame-params
	  for default-frame-param in default-frame-params
	  collect (or user-frame-param default-frame-param))))

(defun* org-odt-format-entity (entity href width height
				      &key caption label category
				      user-frame-params short-caption)
  (let* ((entity-style (assoc-string entity org-odt-entity-frame-styles t))
	 default-frame-params frame-params)
    (cond
     ((not (or caption label))
      (setq default-frame-params (nth 2 entity-style))
      (setq frame-params (org-odt-merge-frame-params
			  default-frame-params user-frame-params))
      (apply 'org-odt-format-frame href width height frame-params))
     (t
      (setq default-frame-params (nth 3 entity-style))
      (setq frame-params (org-odt-merge-frame-params
			  default-frame-params user-frame-params))
      (apply 'org-odt-format-textbox
	     (org-odt-format-stylized-paragraph
	      'illustration
	      (concat
	       (apply 'org-odt-format-frame href width height
		      (let ((entity-style-1 (copy-sequence
					     (nth 2 entity-style))))
			(setcar (cdr entity-style-1)
				(concat
				 (cadr entity-style-1)
				 (and short-caption
				      (format " draw:name=\"%s\" "
					      short-caption))))

			entity-style-1))
	       (org-odt-format-entity-caption
		label caption (or category (nth 1 entity-style)))))
	     width height frame-params)))))

(defvar org-odt-embedded-images-count 0)
(defun org-odt-copy-image-file (path)
  "Returns the internal name of the file"
  (let* ((image-type (file-name-extension path))
	 (media-type (format "image/%s" image-type))
	 (src-file (expand-file-name
		    path (file-name-directory org-current-export-file)))
	 (target-dir "Images/")
	 (target-file
	  (format "%s%04d.%s" target-dir
		  (incf org-odt-embedded-images-count) image-type)))
    (when (not org-lparse-to-buffer)
      (message "Embedding %s as %s ..."
	       (substring-no-properties path) target-file)

      (when (= 1 org-odt-embedded-images-count)
	(make-directory target-dir)
	(org-odt-create-manifest-file-entry "" target-dir))

      (copy-file src-file target-file 'overwrite)
      (org-odt-create-manifest-file-entry media-type target-file))
    target-file))

(defvar org-export-odt-image-size-probe-method
  (append (and (executable-find "identify") '(imagemagick)) ; See Bug#10675
	  '(emacs fixed))
  "Ordered list of methods for determining image sizes.")

(defvar org-export-odt-default-image-sizes-alist
  '(("as-char" . (5 . 0.4))
    ("paragraph" . (5 . 5)))
  "Hardcoded image dimensions one for each of the anchor
  methods.")

;; A4 page size is 21.0 by 29.7 cms
;; The default page settings has 2cm margin on each of the sides.  So
;; the effective text area is 17.0 by 25.7 cm
(defvar org-export-odt-max-image-size '(17.0 . 20.0)
  "Limiting dimensions for an embedded image.")

(defun org-odt-do-image-size (probe-method file &optional dpi anchor-type)
  (let* ((dpi (or dpi org-export-odt-pixels-per-inch))
	 (anchor-type (or anchor-type "paragraph"))
	 (--pixels-to-cms
	  (function
	   (lambda (pixels dpi)
	     (let* ((cms-per-inch 2.54)
		    (inches (/ pixels dpi)))
	       (* cms-per-inch inches)))))
	 (--size-in-cms
	  (function
	   (lambda (size-in-pixels dpi)
	     (and size-in-pixels
		  (cons (funcall --pixels-to-cms (car size-in-pixels) dpi)
			(funcall --pixels-to-cms (cdr size-in-pixels) dpi)))))))
    (case probe-method
      (emacs
       (let ((size-in-pixels
	      (ignore-errors		; Emacs could be in batch mode
		(clear-image-cache)
		(image-size (create-image file) 'pixels))))
	 (funcall --size-in-cms size-in-pixels dpi)))
      (imagemagick
       (let ((size-in-pixels
	      (let ((dim (shell-command-to-string
			  (format "identify -format \"%%w:%%h\" \"%s\"" file))))
		(when (string-match "\\([0-9]+\\):\\([0-9]+\\)" dim)
		  (cons (string-to-number (match-string 1 dim))
			(string-to-number (match-string 2 dim)))))))
	 (funcall --size-in-cms size-in-pixels dpi)))
      (t (cdr (assoc-string anchor-type
			    org-export-odt-default-image-sizes-alist))))))

(defun org-odt-image-size-from-file (file &optional user-width
					  user-height scale dpi embed-as)
  (unless (file-name-absolute-p file)
    (setq file (expand-file-name
		file (file-name-directory org-current-export-file))))
  (let* (size width height)
    (unless (and user-height user-width)
      (loop for probe-method in org-export-odt-image-size-probe-method
	    until size
	    do (setq size (org-odt-do-image-size
			   probe-method file dpi embed-as)))
      (or size (error "Cannot determine image size, aborting"))
      (setq width (car size) height (cdr size)))
    (cond
     (scale
      (setq width (* width scale) height (* height scale)))
     ((and user-height user-width)
      (setq width user-width height user-height))
     (user-height
      (setq width (* user-height (/ width height)) height user-height))
     (user-width
      (setq height (* user-width (/ height width)) width user-width))
     (t (ignore)))
    ;; ensure that an embedded image fits comfortably within a page
    (let ((max-width (car org-export-odt-max-image-size))
	  (max-height (cdr org-export-odt-max-image-size)))
      (when (or (> width max-width) (> height max-height))
	(let* ((scale1 (/ max-width width))
	       (scale2 (/ max-height height))
	       (scale (min scale1 scale2)))
	  (setq width (* scale width) height (* scale height)))))
    (cons width height)))

(defvar org-odt-entity-counts-plist nil
  "Plist of running counters of SEQNOs for each of the CATEGORY-NAMEs.
See `org-odt-entity-labels-alist' for known CATEGORY-NAMEs.")

(defvar org-odt-label-styles
  '(("math-formula" "%c" "text" "(%n)")
    ("math-label" "(%n)" "text" "(%n)")
    ("category-and-value" "%e %n: %c" "category-and-value" "%e %n")
    ("value" "%e %n: %c" "value" "%n"))
  "Specify how labels are applied and referenced.
This is an alist where each element is of the
form (LABEL-STYLE-NAME LABEL-ATTACH-FMT LABEL-REF-MODE
LABEL-REF-FMT).

LABEL-ATTACH-FMT controls how labels and captions are attached to
an entity.  It may contain following specifiers - %e, %n and %c.
%e is replaced with the CATEGORY-NAME.  %n is replaced with
\"<text:sequence ...> SEQNO </text:sequence>\".  %c is replaced
with CAPTION. See `org-odt-format-label-definition'.

LABEL-REF-MODE and LABEL-REF-FMT controls how label references
are generated.  The following XML is generated for a label
reference - \"<text:sequence-ref
text:reference-format=\"LABEL-REF-MODE\" ...> LABEL-REF-FMT
</text:sequence-ref>\".  LABEL-REF-FMT may contain following
specifiers - %e and %n.  %e is replaced with the CATEGORY-NAME.
%n is replaced with SEQNO. See
`org-odt-format-label-reference'.")

(defcustom org-export-odt-category-strings
  '(("en" "Table" "Figure" "Equation" "Equation"))
  "Specify category strings for various captionable entities.
Captionable entity can be one of a Table, an Embedded Image, a
LaTeX fragment (generated with dvipng) or a Math Formula.

For example, when `org-export-default-language' is \"en\", an
embedded image will be captioned as \"Figure 1: Orgmode Logo\".
If you want the images to be captioned instead as \"Illustration
1: Orgmode Logo\", then modify the entry for \"en\" as shown
below.

  \(setq org-export-odt-category-strings
	'\(\(\"en\" \"Table\" \"Illustration\"
	   \"Equation\" \"Equation\"\)\)\)"
  :group 'org-export-odt
  :version "24.1"
  :type '(repeat (list (string :tag "Language tag")
		       (choice :tag "Table"
			       (const :tag "Use Default" nil)
			       (string :tag "Category string"))
		       (choice :tag "Figure"
			       (const :tag "Use Default" nil)
			       (string :tag "Category string"))
		       (choice :tag "Math Formula"
			       (const :tag "Use Default" nil)
			       (string :tag "Category string"))
		       (choice :tag "Dvipng Image"
			       (const :tag "Use Default" nil)
			       (string :tag "Category string")))))

(defvar org-odt-category-map-alist
  '(("__Table__" "Table" "value")
    ("__Figure__" "Illustration" "value")
    ("__MathFormula__" "Text" "math-formula")
    ("__DvipngImage__" "Equation" "value")
    ;; ("__Table__" "Table" "category-and-value")
    ;; ("__Figure__" "Figure" "category-and-value")
    ;; ("__DvipngImage__" "Equation" "category-and-value")
    )
  "Map a CATEGORY-HANDLE to OD-VARIABLE and LABEL-STYLE.
This is a list where each entry is of the form \\(CATEGORY-HANDLE
OD-VARIABLE LABEL-STYLE\\).  CATEGORY_HANDLE identifies the
captionable entity in question.  OD-VARIABLE is the OpenDocument
sequence counter associated with the entity.  These counters are
declared within
\"<text:sequence-decls>...</text:sequence-decls>\" block of
`org-export-odt-content-template-file'.  LABEL-STYLE is a key
into `org-odt-label-styles' and specifies how a given entity
should be captioned and referenced.

The position of a CATEGORY-HANDLE in this list is used as an
index in to per-language entry for
`org-export-odt-category-strings' to retrieve a CATEGORY-NAME.
This CATEGORY-NAME is then used for qualifying the user-specified
captions on export.")

(defun org-odt-add-label-definition (label default-category)
  "Create an entry in `org-odt-entity-labels-alist' and return it."
  (let* ((label-props (assoc default-category org-odt-category-map-alist))
	 ;; identify the sequence number
	 (counter (nth 1 label-props))
	 (sequence-var (intern counter))
	 (seqno (1+ (or (plist-get org-odt-entity-counts-plist sequence-var)
			0)))
	 ;; assign an internal label, if user has not provided one
	 (label (if label (substring-no-properties label)
		  (format  "%s-%s" default-category seqno)))
	 ;; identify label style
	 (label-style (nth 2 label-props))
	 ;; grok language setting
	 (en-strings (assoc-default "en" org-export-odt-category-strings))
	 (lang (plist-get org-lparse-opt-plist :language))
	 (lang-strings (assoc-default lang org-export-odt-category-strings))
	 ;; retrieve localized category sting
	 (pos (- (length org-odt-category-map-alist)
		 (length (memq label-props org-odt-category-map-alist))))
	 (category (or (nth pos lang-strings) (nth pos en-strings)))
	 (label-props (list label category counter seqno label-style)))
    ;; synchronize internal counters
    (setq org-odt-entity-counts-plist
	  (plist-put org-odt-entity-counts-plist sequence-var seqno))
    ;; stash label properties for later retrieval
    (push label-props org-odt-entity-labels-alist)
    label-props))

(defun org-odt-format-label-definition (caption label category counter
						seqno label-style)
  (assert label)
  (format-spec
   (cadr (assoc-string label-style org-odt-label-styles t))
   `((?e . ,category)
     (?n . ,(org-odt-format-tags
	     '("<text:sequence text:ref-name=\"%s\" text:name=\"%s\" text:formula=\"ooow:%s+1\" style:num-format=\"1\">" . "</text:sequence>")
	     (format "%d" seqno) label counter counter))
     (?c . ,(or caption "")))))

(defun org-odt-format-label-reference (label category counter
					     seqno label-style)
  (assert label)
  (save-match-data
    (let* ((fmt (cddr (assoc-string label-style org-odt-label-styles t)))
	   (fmt1 (car fmt))
	   (fmt2 (cadr fmt)))
      (org-odt-format-tags
       '("<text:sequence-ref text:reference-format=\"%s\" text:ref-name=\"%s\">"
	 . "</text:sequence-ref>")
       (format-spec fmt2 `((?e . ,category)
			   (?n . ,(format "%d" seqno)))) fmt1 label))))

(defun org-odt-fixup-label-references ()
  (goto-char (point-min))
  (while (re-search-forward
	  "<text:sequence-ref text:ref-name=\"\\([^\"]+\\)\">[ \t\n]*</text:sequence-ref>"
	  nil t)
    (let* ((label (match-string 1))
	   (label-def (assoc label org-odt-entity-labels-alist))
	   (rpl (and label-def
		     (apply 'org-odt-format-label-reference label-def))))
      (if rpl (replace-match rpl t t)
	(org-lparse-warn
	 (format "Unable to resolve reference to label \"%s\"" label))))))

(defun org-odt-format-entity-caption (label caption category)
  (if (not (or label caption)) ""
    (apply 'org-odt-format-label-definition caption
	   (org-odt-add-label-definition label category))))

(defun org-odt-format-tags (tag text &rest args)
  (let ((prefix (when org-lparse-encode-pending "@"))
	(suffix (when org-lparse-encode-pending "@")))
    (apply 'org-lparse-format-tags tag text prefix suffix args)))

(defvar org-odt-manifest-file-entries nil)
(defun org-odt-init-outfile (filename)
  (unless (executable-find "zip")
    ;; Not at all OSes ship with zip by default
    (error "Executable \"zip\" needed for creating OpenDocument files"))

  (let* ((content-file (expand-file-name "content.xml" org-odt-zip-dir)))
    ;; init conten.xml
    (require 'nxml-mode)
    (let ((nxml-auto-insert-xml-declaration-flag nil))
      (find-file-noselect content-file t))

    ;; reset variables
    (setq org-odt-manifest-file-entries nil
	  org-odt-embedded-images-count 0
	  org-odt-embedded-formulas-count 0
	  org-odt-entity-labels-alist nil
	  org-odt-list-stack-stashed nil
	  org-odt-automatic-styles nil
	  org-odt-object-counters nil
	  org-odt-entity-counts-plist nil)
    content-file))

(defcustom org-export-odt-prettify-xml nil
  "Specify whether or not the xml output should be prettified.
When this option is turned on, `indent-region' is run on all
component xml buffers before they are saved.  Turn this off for
regular use.  Turn this on if you need to examine the xml
visually."
  :group 'org-export-odt
  :version "24.1"
  :type 'boolean)

(defvar hfy-user-sheet-assoc)		; bound during org-do-lparse
(defun org-odt-save-as-outfile (target opt-plist)
  ;; write automatic styles
  (org-odt-write-automatic-styles)

  ;; write meta file
  (org-odt-update-meta-file opt-plist)

  ;; write styles file
  (when (equal org-lparse-backend 'odt)
    (org-odt-update-styles-file opt-plist))

  ;; create mimetype file
  (let ((mimetype (org-odt-write-mimetype-file org-lparse-backend)))
    (org-odt-create-manifest-file-entry mimetype "/" "1.2"))

  ;; create a manifest entry for content.xml
  (org-odt-create-manifest-file-entry "text/xml" "content.xml")

  ;; write out the manifest entries before zipping
  (org-odt-write-manifest-file)

  (let ((xml-files '("mimetype" "META-INF/manifest.xml" "content.xml"
		     "meta.xml")))
    (when (equal org-lparse-backend 'odt)
      (push "styles.xml" xml-files))

    ;; save all xml files
    (mapc (lambda (file)
	    (with-current-buffer
		(find-file-noselect (expand-file-name file) t)
	      ;; prettify output if needed
	      (when org-export-odt-prettify-xml
		(indent-region (point-min) (point-max)))
	      (save-buffer 0)))
	  xml-files)

    (let* ((target-name (file-name-nondirectory target))
	   (target-dir (file-name-directory target))
	   (cmds `(("zip" "-mX0" ,target-name "mimetype")
		   ("zip" "-rmTq" ,target-name "."))))
      (when (file-exists-p target)
	;; FIXME: If the file is locked this throws a cryptic error
	(delete-file target))

      (let ((coding-system-for-write 'no-conversion) exitcode err-string)
	(message "Creating odt file...")
	(mapc
	 (lambda (cmd)
	   (message "Running %s" (mapconcat 'identity cmd " "))
	   (setq err-string
		 (with-output-to-string
		   (setq exitcode
			 (apply 'call-process (car cmd)
				nil standard-output nil (cdr cmd)))))
	   (or (zerop exitcode)
	       (ignore (message "%s" err-string))
	       (error "Unable to create odt file (%S)" exitcode)))
	 cmds))

      ;; move the file from outdir to target-dir
      (rename-file target-name target-dir)))

  (message "Created %s" target)
  (set-buffer (find-file-noselect target t)))

(defconst org-odt-manifest-file-entry-tag
  "
<manifest:file-entry manifest:media-type=\"%s\" manifest:full-path=\"%s\"%s/>")

(defun org-odt-create-manifest-file-entry (&rest args)
  (push args org-odt-manifest-file-entries))

(defun org-odt-write-manifest-file ()
  (make-directory "META-INF")
  (let ((manifest-file (expand-file-name "META-INF/manifest.xml")))
    (with-current-buffer
	(let ((nxml-auto-insert-xml-declaration-flag nil))
	  (find-file-noselect manifest-file t))
      (insert
       "<?xml version=\"1.0\" encoding=\"UTF-8\"?>
     <manifest:manifest xmlns:manifest=\"urn:oasis:names:tc:opendocument:xmlns:manifest:1.0\" manifest:version=\"1.2\">\n")
      (mapc
       (lambda (file-entry)
	 (let* ((version (nth 2 file-entry))
		(extra (if version
			   (format  " manifest:version=\"%s\"" version)
			 "")))
	   (insert
	    (format org-odt-manifest-file-entry-tag
		    (nth 0 file-entry) (nth 1 file-entry) extra))))
       org-odt-manifest-file-entries)
      (insert "\n</manifest:manifest>"))))

(defun org-odt-update-meta-file (opt-plist)
  (let ((date (org-odt-format-date (plist-get opt-plist :date)))
	(author (or (plist-get opt-plist :author) ""))
	(email (plist-get opt-plist :email))
	(keywords (plist-get opt-plist :keywords))
	(description (plist-get opt-plist :description))
	(title (plist-get opt-plist :title)))
    (write-region
     (concat
      "<?xml version=\"1.0\" encoding=\"UTF-8\"?>
     <office:document-meta
         xmlns:office=\"urn:oasis:names:tc:opendocument:xmlns:office:1.0\"
         xmlns:xlink=\"http://www.w3.org/1999/xlink\"
         xmlns:dc=\"http://purl.org/dc/elements/1.1/\"
         xmlns:meta=\"urn:oasis:names:tc:opendocument:xmlns:meta:1.0\"
         xmlns:ooo=\"http://openoffice.org/2004/office\"
         office:version=\"1.2\">
       <office:meta>" "\n"
       (org-odt-format-author)
       (org-odt-format-tags
	'("\n<meta:initial-creator>" . "</meta:initial-creator>") author)
       (org-odt-format-tags '("\n<dc:date>" . "</dc:date>") date)
       (org-odt-format-tags
	'("\n<meta:creation-date>" . "</meta:creation-date>") date)
       (org-odt-format-tags '("\n<meta:generator>" . "</meta:generator>")
			    (when org-export-creator-info
			      (format "Org-%s/Emacs-%s"
				      (org-version)
				      emacs-version)))
       (org-odt-format-tags '("\n<meta:keyword>" . "</meta:keyword>") keywords)
       (org-odt-format-tags '("\n<dc:subject>" . "</dc:subject>") description)
       (org-odt-format-tags '("\n<dc:title>" . "</dc:title>") title)
       "\n"
       "  </office:meta>" "</office:document-meta>")
     nil (expand-file-name "meta.xml")))

  ;; create a manifest entry for meta.xml
  (org-odt-create-manifest-file-entry "text/xml" "meta.xml"))

(defun org-odt-update-styles-file (opt-plist)
  ;; write styles file
  (let ((styles-file (plist-get opt-plist :odt-styles-file)))
    (org-odt-copy-styles-file (and styles-file
				   (read (org-trim styles-file)))))

  ;; Update styles.xml - take care of outline numbering
  (with-current-buffer
      (find-file-noselect (expand-file-name "styles.xml") t)
    ;; Don't make automatic backup of styles.xml file.  This setting
    ;; prevents the backed-up styles.xml file from being zipped in to
    ;; odt file.  This is more of a hackish fix.  Better alternative
    ;; would be to fix the zip command so that the output odt file
    ;; includes only the needed files and excludes any auto-generated
    ;; extra files like backups and auto-saves etc etc.  Note that
    ;; currently the zip command zips up the entire temp directory so
    ;; that any auto-generated files created under the hood ends up in
    ;; the resulting odt file.
    (set (make-local-variable 'backup-inhibited) t)

    ;; Import local setting of `org-export-with-section-numbers'
    (org-lparse-bind-local-variables opt-plist)
    (org-odt-configure-outline-numbering
     (if org-export-with-section-numbers org-export-headline-levels 0)))

  ;; Write custom styles for source blocks
  (org-odt-insert-custom-styles-for-srcblocks
   (mapconcat
    (lambda (style)
      (format " %s\n" (cddr style)))
    hfy-user-sheet-assoc "")))

(defun org-odt-write-mimetype-file (format)
  ;; create mimetype file
  (let ((mimetype
	 (case format
	   (odt "application/vnd.oasis.opendocument.text")
	   (odf "application/vnd.oasis.opendocument.formula")
	   (t (error "Unknown OpenDocument backend %S" org-lparse-backend)))))
    (write-region mimetype nil (expand-file-name "mimetype"))
    mimetype))

(defun org-odt-finalize-outfile ()
  (org-odt-delete-empty-paragraphs))

(defun org-odt-delete-empty-paragraphs ()
  (goto-char (point-min))
  (let ((open "<text:p[^>]*>")
	(close "</text:p>"))
    (while (re-search-forward (format "%s[ \r\n\t]*%s" open close) nil t)
      (replace-match ""))))

(defcustom org-export-odt-convert-processes
  '(("LibreOffice"
     "soffice --headless --convert-to %f%x --outdir %d %i")
    ("unoconv"
     "unoconv -f %f -o %d %i"))
  "Specify a list of document converters and their usage.
The converters in this list are offered as choices while
customizing `org-export-odt-convert-process'.

This variable is a list where each element is of the
form (CONVERTER-NAME CONVERTER-CMD).  CONVERTER-NAME is the name
of the converter.  CONVERTER-CMD is the shell command for the
converter and can contain format specifiers.  These format
specifiers are interpreted as below:

%i input file name in full
%I input file name as a URL
%f format of the output file
%o output file name in full
%O output file name as a URL
%d output dir in full
%D output dir as a URL.
%x extra options as set in `org-export-odt-convert-capabilities'."
  :group 'org-export-odt
  :version "24.1"
  :type
  '(choice
    (const :tag "None" nil)
    (alist :tag "Converters"
	   :key-type (string :tag "Converter Name")
	   :value-type (group (string :tag "Command line")))))

(defcustom org-export-odt-convert-process "LibreOffice"
  "Use this converter to convert from \"odt\" format to other formats.
During customization, the list of converter names are populated
from `org-export-odt-convert-processes'."
  :group 'org-export-odt
  :version "24.1"
  :type '(choice :convert-widget
		 (lambda (w)
		   (apply 'widget-convert (widget-type w)
			  (eval (car (widget-get w :args)))))
		 `((const :tag "None" nil)
		   ,@(mapcar (lambda (c)
			       `(const :tag ,(car c) ,(car c)))
			     org-export-odt-convert-processes))))

(defcustom org-export-odt-convert-capabilities
  '(("Text"
     ("odt" "ott" "doc" "rtf" "docx")
     (("pdf" "pdf") ("odt" "odt") ("rtf" "rtf") ("ott" "ott")
      ("doc" "doc" ":\"MS Word 97\"") ("docx" "docx") ("html" "html")))
    ("Web"
     ("html")
     (("pdf" "pdf") ("odt" "odt") ("html" "html")))
    ("Spreadsheet"
     ("ods" "ots" "xls" "csv" "xlsx")
     (("pdf" "pdf") ("ots" "ots") ("html" "html") ("csv" "csv") ("ods" "ods")
      ("xls" "xls") ("xlsx" "xlsx")))
    ("Presentation"
     ("odp" "otp" "ppt" "pptx")
     (("pdf" "pdf") ("swf" "swf") ("odp" "odp") ("otp" "otp") ("ppt" "ppt")
      ("pptx" "pptx") ("odg" "odg"))))
  "Specify input and output formats of `org-export-odt-convert-process'.
More correctly, specify the set of input and output formats that
the user is actually interested in.

This variable is an alist where each element is of the
form (DOCUMENT-CLASS INPUT-FMT-LIST OUTPUT-FMT-ALIST).
INPUT-FMT-LIST is a list of INPUT-FMTs.  OUTPUT-FMT-ALIST is an
alist where each element is of the form (OUTPUT-FMT
OUTPUT-FILE-EXTENSION EXTRA-OPTIONS).

The variable is interpreted as follows:
`org-export-odt-convert-process' can take any document that is in
INPUT-FMT-LIST and produce any document that is in the
OUTPUT-FMT-LIST.  A document converted to OUTPUT-FMT will have
OUTPUT-FILE-EXTENSION as the file name extension.  OUTPUT-FMT
serves dual purposes:
- It is used for populating completion candidates during
  `org-export-odt-convert' commands.
- It is used as the value of \"%f\" specifier in
  `org-export-odt-convert-process'.

EXTRA-OPTIONS is used as the value of \"%x\" specifier in
`org-export-odt-convert-process'.

DOCUMENT-CLASS is used to group a set of file formats in
INPUT-FMT-LIST in to a single class.

Note that this variable inherently captures how LibreOffice based
converters work.  LibreOffice maps documents of various formats
to classes like Text, Web, Spreadsheet, Presentation etc and
allow document of a given class (irrespective of it's source
format) to be converted to any of the export formats associated
with that class.

See default setting of this variable for an typical
configuration."
  :group 'org-export-odt
  :version "24.1"
  :type
  '(choice
    (const :tag "None" nil)
    (alist :tag "Capabilities"
	   :key-type (string :tag "Document Class")
	   :value-type
	   (group (repeat :tag "Input formats" (string :tag "Input format"))
		  (alist :tag "Output formats"
			 :key-type (string :tag "Output format")
			 :value-type
			 (group (string :tag "Output file extension")
				(choice
				 (const :tag "None" nil)
				 (string :tag "Extra options"))))))))

(declare-function org-create-math-formula "org"
		  (latex-frag &optional mathml-file))

;;;###autoload
(defun org-export-odt-convert (&optional in-file out-fmt prefix-arg)
  "Convert IN-FILE to format OUT-FMT using a command line converter.
IN-FILE is the file to be converted.  If unspecified, it defaults
to variable `buffer-file-name'.  OUT-FMT is the desired output
format.  Use `org-export-odt-convert-process' as the converter.
If PREFIX-ARG is non-nil then the newly converted file is opened
using `org-open-file'."
  (interactive
   (append (org-lparse-convert-read-params) current-prefix-arg))
  (org-lparse-do-convert in-file out-fmt prefix-arg))

(defun org-odt-get (what &optional opt-plist)
  (case what
    (BACKEND 'odt)
    (EXPORT-DIR (org-export-directory :html opt-plist))
    (FILE-NAME-EXTENSION "odt")
    (EXPORT-BUFFER-NAME "*Org ODT Export*")
    (ENTITY-CONTROL org-odt-entity-control-callbacks-alist)
    (ENTITY-FORMAT org-odt-entity-format-callbacks-alist)
    (INIT-METHOD 'org-odt-init-outfile)
    (FINAL-METHOD 'org-odt-finalize-outfile)
    (SAVE-METHOD 'org-odt-save-as-outfile)
    (CONVERT-METHOD
     (and org-export-odt-convert-process
	  (cadr (assoc-string org-export-odt-convert-process
			      org-export-odt-convert-processes t))))
    (CONVERT-CAPABILITIES
     (and org-export-odt-convert-process
	  (cadr (assoc-string org-export-odt-convert-process
			      org-export-odt-convert-processes t))
	  org-export-odt-convert-capabilities))
    (TOPLEVEL-HLEVEL 1)
    (SPECIAL-STRING-REGEXPS org-export-odt-special-string-regexps)
    (INLINE-IMAGES 'maybe)
    (INLINE-IMAGE-EXTENSIONS '("png" "jpeg" "jpg" "gif" "svg"))
    (PLAIN-TEXT-MAP '(("&" . "&amp;") ("<" . "&lt;") (">" . "&gt;")))
    (TABLE-FIRST-COLUMN-AS-LABELS nil)
    (FOOTNOTE-SEPARATOR (org-lparse-format 'FONTIFY "," 'superscript))
    (CODING-SYSTEM-FOR-WRITE 'utf-8)
    (CODING-SYSTEM-FOR-SAVE 'utf-8)
    (t (error "Unknown property: %s"  what))))

(defvar org-lparse-latex-fragment-fallback) ; set by org-do-lparse
(defun org-export-odt-do-preprocess-latex-fragments ()
  "Convert LaTeX fragments to images."
  (let* ((latex-frag-opt (plist-get org-lparse-opt-plist :LaTeX-fragments))
	 (latex-frag-opt		;  massage the options
	  (or (and (member latex-frag-opt '(mathjax t))
		   (not (and (fboundp 'org-format-latex-mathml-available-p)
			     (org-format-latex-mathml-available-p)))
		   (prog1 org-lparse-latex-fragment-fallback
		     (org-lparse-warn
		      (concat
		       "LaTeX to MathML converter not available. "
		       (format "Using %S instead."
			       org-lparse-latex-fragment-fallback)))))
	      latex-frag-opt))
	 cache-dir display-msg)
    (cond
     ((eq latex-frag-opt 'dvipng)
      (setq cache-dir org-latex-preview-ltxpng-directory)
      (setq display-msg "Creating LaTeX image %s"))
     ((member latex-frag-opt '(mathjax t))
      (setq latex-frag-opt 'mathml)
      (setq cache-dir "ltxmathml/")
      (setq display-msg "Creating MathML formula %s")))
    (when (and org-current-export-file)
      (org-format-latex
       (concat cache-dir (file-name-sans-extension
			  (file-name-nondirectory org-current-export-file)))
       org-current-export-dir nil display-msg
       nil nil latex-frag-opt))))

(defadvice org-format-latex-as-mathml
  (after org-odt-protect-latex-fragment activate)
  "Encode LaTeX fragment as XML.
Do this when translation to MathML fails."
  (when (or (not (> (length ad-return-value) 0))
	    (get-text-property 0 'org-protected ad-return-value))
    (setq ad-return-value
	  (org-propertize (org-odt-encode-plain-text (ad-get-arg 0))
			  'org-protected t))))

(defun org-export-odt-preprocess-latex-fragments ()
  (when (equal org-export-current-backend 'odt)
    (org-export-odt-do-preprocess-latex-fragments)))

(defun org-export-odt-preprocess-label-references ()
  (goto-char (point-min))
  (let (label label-components category value pretty-label)
    (while (re-search-forward "\\\\ref{\\([^{}\n]+\\)}" nil t)
      (org-if-unprotected-at (match-beginning 1)
	(replace-match
	 (let ((org-lparse-encode-pending t)
	       (label (match-string 1)))
	   ;; markup generated below is mostly an eye-candy.  At
	   ;; pre-processing stage, there is no information on which
	   ;; entity a label reference points to.  The actual markup
	   ;; is generated as part of `org-odt-fixup-label-references'
	   ;; which gets called at the fag end of export.  By this
	   ;; time we would have seen and collected all the label
	   ;; definitions in `org-odt-entity-labels-alist'.
	   (org-odt-format-tags
	    '("<text:sequence-ref text:ref-name=\"%s\">" .
	      "</text:sequence-ref>")
	    "" (org-add-props label '(org-protected t)))) t t)))))

;; process latex fragments as part of
;; `org-export-preprocess-after-blockquote-hook'.  Note that this hook
;; is the one that is closest and well before the call to
;; `org-export-attach-captions-and-attributes' in
;; `org-export-preprocess-string'.  The above arrangement permits
;; captions, labels and attributes to be attached to png images
;; generated out of latex equations.
(add-hook 'org-export-preprocess-after-blockquote-hook
	  'org-export-odt-preprocess-latex-fragments)

(defun org-export-odt-preprocess (parameters)
  (org-export-odt-preprocess-label-references))

(declare-function archive-zip-extract "arc-mode.el" (archive name))
(defun org-odt-zip-extract-one (archive member &optional target)
  (require 'arc-mode)
  (let* ((target (or target default-directory))
	 (archive (expand-file-name archive))
	 (archive-zip-extract
	  (list "unzip" "-qq" "-o" "-d" target))
	 exit-code command-output)
    (setq command-output
	  (with-temp-buffer
	    (setq exit-code (archive-zip-extract archive member))
	    (buffer-string)))
    (unless (zerop exit-code)
      (message command-output)
      (error "Extraction failed"))))

(defun org-odt-zip-extract (archive members &optional target)
  (when (atom members) (setq members (list members)))
  (mapc (lambda (member)
	  (org-odt-zip-extract-one archive member target))
	members))

(defun org-odt-copy-styles-file (&optional styles-file)
  ;; Non-availability of styles.xml is not a critical error.  For now
  ;; throw an error purely for aesthetic reasons.
  (setq styles-file (or styles-file
			org-export-odt-styles-file
			(expand-file-name "OrgOdtStyles.xml"
					  org-odt-styles-dir)
			(error "org-odt: Missing styles file?")))
  (cond
   ((listp styles-file)
    (let ((archive (nth 0 styles-file))
	  (members (nth 1 styles-file)))
      (org-odt-zip-extract archive members)
      (mapc
       (lambda (member)
	 (when (org-file-image-p member)
	   (let* ((image-type (file-name-extension member))
		  (media-type (format "image/%s" image-type)))
	     (org-odt-create-manifest-file-entry media-type member))))
       members)))
   ((and (stringp styles-file) (file-exists-p styles-file))
    (let ((styles-file-type (file-name-extension styles-file)))
      (cond
       ((string= styles-file-type "xml")
	(copy-file styles-file "styles.xml" t))
       ((member styles-file-type '("odt" "ott"))
	(org-odt-zip-extract styles-file "styles.xml")))))
   (t
    (error (format "Invalid specification of styles.xml file: %S"
		   org-export-odt-styles-file))))

  ;; create a manifest entry for styles.xml
  (org-odt-create-manifest-file-entry "text/xml" "styles.xml"))

(defun org-odt-configure-outline-numbering (level)
  "Outline numbering is retained only upto LEVEL.
To disable outline numbering pass a LEVEL of 0."
  (goto-char (point-min))
  (let ((regex
	 "<text:outline-level-style\\([^>]*\\)text:level=\"\\([^\"]*\\)\"\\([^>]*\\)>")
	(replacement
	 "<text:outline-level-style\\1text:level=\"\\2\" style:num-format=\"\">"))
    (while (re-search-forward regex nil t)
      (when (> (string-to-number (match-string 2)) level)
	(replace-match replacement t nil))))
  (save-buffer 0))

;;;###autoload
(defun org-export-as-odf (latex-frag &optional odf-file)
  "Export LATEX-FRAG as OpenDocument formula file ODF-FILE.
Use `org-create-math-formula' to convert LATEX-FRAG first to
MathML.  When invoked as an interactive command, use
`org-latex-regexps' to infer LATEX-FRAG from currently active
region.  If no LaTeX fragments are found, prompt for it.  Push
MathML source to kill ring, if `org-export-copy-to-kill-ring' is
non-nil."
  (interactive
   `(,(let (frag)
	(setq frag (and (setq frag (and (org-region-active-p)
					(buffer-substring (region-beginning)
							  (region-end))))
			(loop for e in org-latex-regexps
			      thereis (when (string-match (nth 1 e) frag)
					(match-string (nth 2 e) frag)))))
	(read-string "LaTeX Fragment: " frag nil frag))
     ,(let ((odf-filename (expand-file-name
			   (concat
			    (file-name-sans-extension
			     (or (file-name-nondirectory buffer-file-name)))
			    "." "odf")
			   (file-name-directory buffer-file-name))))
	(read-file-name "ODF filename: " nil odf-filename nil
			(file-name-nondirectory odf-filename)))))
  (org-odt-cleanup-xml-buffers
   (let* ((org-lparse-backend 'odf)
	  org-lparse-opt-plist
	  (filename (or odf-file
			(expand-file-name
			 (concat
			  (file-name-sans-extension
			   (or (file-name-nondirectory buffer-file-name)))
			  "." "odf")
			 (file-name-directory buffer-file-name))))
	  (buffer (find-file-noselect (org-odt-init-outfile filename)))
	  (coding-system-for-write 'utf-8)
	  (save-buffer-coding-system 'utf-8))
     (set-buffer buffer)
     (set-buffer-file-coding-system coding-system-for-write)
     (let ((mathml (org-create-math-formula latex-frag)))
       (unless mathml (error "No Math formula created"))
       (insert mathml)
       (or (org-export-push-to-kill-ring
	    (upcase (symbol-name org-lparse-backend)))
	   (message "Exporting... done")))
     (org-odt-save-as-outfile filename nil))))

;;;###autoload
(defun org-export-as-odf-and-open ()
  "Export LaTeX fragment as OpenDocument formula and immediately open it.
Use `org-export-as-odf' to read LaTeX fragment and OpenDocument
formula file."
  (interactive)
  (org-lparse-and-open
   nil nil nil (call-interactively 'org-export-as-odf)))

(provide 'org-odt)

;;; org-odt.el ends here