lisp/muse-docbook.el

   1 ;;; muse-docbook.el --- publish DocBook files
   2
   3 ;; Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
   4
   5 ;; This file is part of Emacs Muse.  It is not part of GNU Emacs.
   6
   7 ;; Emacs Muse is free software; you can redistribute it and/or modify
   8 ;; it under the terms of the GNU General Public License as published
   9 ;; by the Free Software Foundation; either version 2, or (at your
  10 ;; option) any later version.
  11
  12 ;; Emacs Muse is distributed in the hope that it will be useful, but
  13 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
  14 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 ;; General Public License for more details.
  16
  17 ;; You should have received a copy of the GNU General Public License
  18 ;; along with Emacs Muse; see the file COPYING.  If not, write to the
  19 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20 ;; Boston, MA 02110-1301, USA.
  21
  22 ;;; Commentary:
  23
  24 ;;; Contributors:
  25
  26 ;; Dale P. Smith (dpsm AT en DOT com) improved the markup
  27 ;; significantly and made many valuable suggestions.
  28
  29 ;;; Code:
  30
  31 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  32 ;;
  33 ;; Muse DocBook XML Publishing
  34 ;;
  35 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  36
  37 (require 'muse-publish)
  38 (require 'muse-regexps)
  39 (require 'muse-xml-common)
  40
  41 (defgroup muse-docbook nil
  42   "Options controlling the behavior of Muse DocBook XML publishing.
  43 See `muse-docbook' for more information."
  44   :group 'muse-publish)
  45
  46 (defcustom muse-docbook-extension ".xml"
  47   "Default file extension for publishing DocBook XML files."
  48   :type 'string
  49   :group 'muse-docbook)
  50
  51 (defcustom muse-docbook-header
  52   "<?xml version=\"1.0\" encoding=\"<lisp>
  53   (muse-docbook-encoding)</lisp>\"?>
  54 <!DOCTYPE article PUBLIC \"-//OASIS//DTD DocBook V4.2//EN\"
  55                   \"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd\">
  56 <article>
  57   <articleinfo>
  58     <title><lisp>(muse-publishing-directive \"title\")</lisp></title>
  59     <author><lisp>(muse-docbook-get-author
  60                     (muse-publishing-directive \"author\"))</lisp></author>
  61     <pubdate><lisp>(muse-publishing-directive \"date\")</lisp></pubdate>
  62   </articleinfo>
  63   <!-- Page published by Emacs Muse begins here -->\n"
  64   "Header used for publishing DocBook XML files.
  65 This may be text or a filename."
  66   :type 'string
  67   :group 'muse-docbook)
  68
  69 (defcustom muse-docbook-footer "
  70   <!-- Page published by Emacs Muse ends here -->
  71 </article>\n"
  72   "Footer used for publishing DocBook XML files.
  73 This may be text or a filename."
  74   :type 'string
  75   :group 'muse-docbook)
  76
  77 (defcustom muse-docbook-markup-regexps
  78   `(;; Beginning of doc, end of doc, or plain paragraph separator
  79     (10000 ,(concat "\\(\\(\n\\([" muse-regexp-blank "]*\n\\)+\\)"
  80                     "\\|\\`\\s-*\\|\\s-*\\'\\)")
  81            0 muse-docbook-markup-paragraph))
  82   "List of markup rules for publishing a Muse page to DocBook XML.
  83 For more on the structure of this list, see `muse-publish-markup-regexps'."
  84   :type '(repeat (choice
  85                   (list :tag "Markup rule"
  86                         integer
  87                         (choice regexp symbol)
  88                         integer
  89                         (choice string function symbol))
  90                   function))
  91   :group 'muse-docbook)
  92
  93 (defcustom muse-docbook-markup-functions
  94   '((anchor . muse-xml-markup-anchor)
  95     (table . muse-xml-markup-table))
  96   "An alist of style types to custom functions for that kind of text.
  97 For more on the structure of this list, see
  98 `muse-publish-markup-functions'."
  99   :type '(alist :key-type symbol :value-type function)
 100   :group 'muse-docbook)
 101
 102 (defcustom muse-docbook-markup-strings
 103   '((anchor-ref      . "<link linkend=\"%s\">%s</link>")
 104     (url             . "<ulink url=\"%s\">%s</ulink>")
 105     (link            . "<ulink url=\"%s\">%s</ulink>")
 106     (link-and-anchor . "<ulink url=\"%s#%s\">%s</ulink>")
 107     (email-addr      . "<email>%s</email>")
 108     (anchor          . "<anchor id=\"%s\" />\n")
 109     (emdash          . "%s&mdash;%s")
 110     (comment-begin   . "<!-- ")
 111     (comment-end     . " -->")
 112     (rule            . "")
 113     (no-break-space  . "&nbsp;")
 114     (enddots         . "....")
 115     (dots            . "...")
 116     (section         . "<section><title>")
 117     (section-end     . "</title>")
 118     (subsection      . "<section><title>")
 119     (subsection-end  . "</title>")
 120     (subsubsection   . "<section><title>")
 121     (subsubsection-end . "</title>")
 122     (section-other   . "<section><title>")
 123     (section-other-end . "</title>")
 124     (section-close   . "</section>")
 125     (footnote        . "<footnote><para>")
 126     (footnote-end    . "</para></footnote>")
 127     (begin-underline . "")
 128     (end-underline   . "")
 129     (begin-literal   . "<systemitem>")
 130     (end-literal     . "</systemitem>")
 131     (begin-emph      . "<emphasis>")
 132     (end-emph        . "</emphasis>")
 133     (begin-more-emph . "<emphasis role=\"strong\">")
 134     (end-more-emph   . "</emphasis>")
 135     (begin-most-emph . "<emphasis role=\"strong\"><emphasis>")
 136     (end-most-emph   . "</emphasis></emphasis>")
 137     (begin-verse     . "<literallayout>\n")
 138     (verse-space     . "  ")
 139     (end-verse       . "</literallayout>")
 140     (begin-example   . "<programlisting>")
 141     (end-example     . "</programlisting>")
 142     (begin-center    . "<para role=\"centered\">\n")
 143     (end-center      . "\n</para>")
 144     (begin-quote     . "<blockquote>\n")
 145     (end-quote       . "\n</blockquote>")
 146     (begin-quote-item . "<para>")
 147     (end-quote-item  . "</para>")
 148     (begin-uli       . "<itemizedlist mark=\"bullet\">\n")
 149     (end-uli         . "\n</itemizedlist>")
 150     (begin-uli-item  . "<listitem><para>")
 151     (end-uli-item    . "</para></listitem>")
 152     (begin-oli       . "<orderedlist>\n")
 153     (end-oli         . "\n</orderedlist>")
 154     (begin-oli-item  . "<listitem><para>")
 155     (end-oli-item    . "</para></listitem>")
 156     (begin-dl        . "<variablelist>\n")
 157     (end-dl          . "\n</variablelist>")
 158     (begin-dl-item   . "<varlistentry>\n")
 159     (end-dl-item     . "\n</varlistentry>")
 160     (begin-ddt       . "<term>")
 161     (end-ddt         . "</term>")
 162     (begin-dde       . "<listitem><para>")
 163     (end-dde         . "</para></listitem>")
 164     (begin-table     . "<informaltable>\n")
 165     (end-table       . "</informaltable>")
 166     (begin-table-group . "  <tgroup cols='%s'>\n")
 167     (end-table-group . "  </tgroup>\n")
 168     (begin-table-row . "    <row>\n")
 169     (end-table-row   . "    </row>\n")
 170     (begin-table-entry . "      <entry>")
 171     (end-table-entry . "</entry>\n"))
 172   "Strings used for marking up text.
 173 These cover the most basic kinds of markup, the handling of which
 174 differs little between the various styles."
 175   :type '(alist :key-type symbol :value-type string)
 176   :group 'muse-docbook)
 177
 178 (defcustom muse-docbook-encoding-default 'utf-8
 179   "The default Emacs buffer encoding to use in published files.
 180 This will be used if no special characters are found."
 181   :type 'symbol
 182   :group 'muse-docbook)
 183
 184 (defcustom muse-docbook-charset-default "utf-8"
 185   "The default DocBook XML charset to use if no translation is
 186 found in `muse-docbook-encoding-map'."
 187   :type 'string
 188   :group 'muse-docbook)
 189
 190 (defun muse-docbook-encoding ()
 191   (muse-xml-transform-content-type
 192    (or (and (boundp 'buffer-file-coding-system)
 193             buffer-file-coding-system)
 194        muse-docbook-encoding-default)
 195    muse-docbook-charset-default))
 196
 197 (defun muse-docbook-markup-paragraph ()
 198   (let ((end (copy-marker (match-end 0) t)))
 199     (goto-char (match-beginning 0))
 200     (when (save-excursion
 201             (save-match-data
 202               (and (re-search-backward "<\\(/?\\)\\(para\\|footnote\\)[ >]"
 203                                        nil t)
 204                    (or (and (string= (match-string 2) "para")
 205                             (not (string= (match-string 1) "/")))
 206                        (and (string= (match-string 2) "footnote")
 207                             (string= (match-string 1) "/"))))))
 208       (when (get-text-property (1- (point)) 'end-list)
 209         (goto-char (previous-single-property-change (1- (point)) 'end-list)))
 210       (muse-insert-markup "</para>"))
 211     (goto-char end))
 212   (cond
 213    ((eobp)
 214     (unless (bolp)
 215       (insert "\n")))
 216    ((eq (char-after) ?\<)
 217     (when (looking-at (concat "<\\(emphasis\\|systemitem"
 218                               "\\|u?link\\|anchor\\|email\\)[ >]"))
 219       (muse-insert-markup "<para>")))
 220    (t
 221     (muse-insert-markup "<para>"))))
 222
 223 (defun muse-docbook-get-author (&optional author)
 224   "Split the AUTHOR directive into separate fields.
 225 AUTHOR should be of the form: \"Firstname Other Names Lastname\",
 226 and anything after `Firstname' is optional."
 227   (setq author (save-match-data (split-string author)))
 228   (let ((num-el (length author)))
 229     (cond ((eq num-el 1)
 230            (concat "<firstname>" (car author) "</firstname>"))
 231           ((eq num-el 2)
 232            (concat "<firstname>" (nth 0 author) "</firstname>"
 233                    "<surname>" (nth 1 author) "</surname>"))
 234           ((eq num-el 3)
 235            (concat "<firstname>" (nth 0 author) "</firstname>"
 236                    "<othername>" (nth 1 author) "</othername>"
 237                    "<surname>" (nth 2 author) "</surname>"))
 238           (t
 239            (let (first last)
 240              (setq first (car author))
 241              (setq author (nreverse (cdr author)))
 242              (setq last (car author))
 243              (setq author (nreverse (cdr author)))
 244              (concat "<firstname>" first "</firstname>"
 245                      "<othername>"
 246                      (mapconcat 'identity author " ")
 247                      "</othername>"
 248                      "<surname>" last "</surname>"))))))
 249
 250 (defun muse-docbook-finalize-buffer ()
 251   (when (boundp 'buffer-file-coding-system)
 252     (when (memq buffer-file-coding-system '(no-conversion undecided-unix))
 253       ;; make it agree with the default charset
 254       (setq buffer-file-coding-system muse-docbook-encoding-default))))
 255
 256 ;; Register the Muse DocBook XML Publisher
 257
 258 (unless (assoc "docbook" muse-publishing-styles)
 259   (muse-define-style "docbook"
 260                      :suffix     'muse-docbook-extension
 261                      :regexps    'muse-docbook-markup-regexps
 262                      :functions  'muse-docbook-markup-functions
 263                      :strings    'muse-docbook-markup-strings
 264                      :specials   'muse-xml-decide-specials
 265                      :after      'muse-docbook-finalize-buffer
 266                      :header     'muse-docbook-header
 267                      :footer     'muse-docbook-footer
 268                      :browser    'find-file))
 269
 270 (provide 'muse-docbook)
 271
 272 ;;; muse-docbook.el ends here