lisp/muse-xml.el

   1 ;;; muse-xml.el --- publish XML files
   2
   3 ;; Copyright (C) 2005, 2006 Free Software Foundation, Inc.
   4
   5 ;; Author: Michael Olson (mwolson AT gnu DOT org)
   6 ;; Date: Sat 23-Jul-2005
   7
   8 ;; This file is part of Emacs Muse.  It is not part of GNU Emacs.
   9
  10 ;; Emacs Muse is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published
  12 ;; by the Free Software Foundation; either version 2, or (at your
  13 ;; option) any later version.
  14
  15 ;; Emacs Muse is distributed in the hope that it will be useful, but
  16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18 ;; General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with Emacs Muse; see the file COPYING.  If not, write to the
  22 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  23 ;; Boston, MA 02110-1301, USA.
  24
  25 ;;; Commentary:
  26
  27 ;; James Clarke's nxml-mode can be used for editing and validating
  28 ;; Muse-generated XML files.  If you are in nxml-mode use the command
  29 ;; C-c C-s C-f to point to the schema in `contrib/muse.rnc', which
  30 ;; comes with Muse.  Say yes if you are asked if you want to copy the
  31 ;; file to your location.  C-c C-s C-a can then be used to reload the
  32 ;; schema if you make changes to the file.
  33
  34 ;;; Contributors:
  35
  36 ;; Peter K. Lee (saint AT corenova DOT com) made the initial
  37 ;; implementation of planner-publish.el, which was heavily borrowed
  38 ;; from.
  39
  40 ;; Brad Collins (brad AT chenla DOT org) provided a Compact RelaxNG
  41 ;; schema.
  42
  43 ;;; Code:
  44
  45 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  46 ;;
  47 ;; Muse XML Publishing
  48 ;;
  49 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  50
  51 (require 'muse-publish)
  52 (require 'muse-regexps)
  53 (require 'muse-xml-common)
  54
  55 (defgroup muse-xml nil
  56   "Options controlling the behavior of Muse XML publishing.
  57 See `muse-xml' for more information."
  58   :group 'muse-publish)
  59
  60 (defcustom muse-xml-extension ".xml"
  61   "Default file extension for publishing XML files."
  62   :type 'string
  63   :group 'muse-xml)
  64
  65 (defcustom muse-xml-header
  66   "<?xml version=\"1.0\" encoding=\"<lisp>
  67   (muse-xml-encoding)</lisp>\"?>
  68 <MUSE>
  69   <pageinfo>
  70     <title><lisp>(muse-publishing-directive \"title\")</lisp></title>
  71     <author><lisp>(muse-publishing-directive \"author\")</lisp></author>
  72     <maintainer><lisp>(muse-style-element :maintainer)</lisp></maintainer>
  73     <pubdate><lisp>(muse-publishing-directive \"date\")</lisp></pubdate>
  74   </pageinfo>
  75   <!-- Page published by Emacs Muse begins here -->\n"
  76   "Header used for publishing XML files.
  77 This may be text or a filename."
  78   :type 'string
  79   :group 'muse-xml)
  80
  81 (defcustom muse-xml-footer "
  82   <!-- Page published by Emacs Muse ends here -->
  83 </MUSE>\n"
  84   "Footer used for publishing Xml XML files.
  85 This may be text or a filename."
  86   :type 'string
  87   :group 'muse-xml)
  88
  89 (defcustom muse-xml-markup-regexps
  90   `(;; Beginning of doc, end of doc, or plain paragraph separator
  91     (10000 ,(concat "\\(\\(\n\\([" muse-regexp-blank "]*\n\\)+\\)"
  92                     "\\|\\`\\s-*\\|\\s-*\\'\\)")
  93            0 muse-xml-markup-paragraph))
  94   "List of markup rules for publishing a Muse page to XML.
  95 For more on the structure of this list, see `muse-publish-markup-regexps'."
  96   :type '(repeat (choice
  97                   (list :tag "Markup rule"
  98                         integer
  99                         (choice regexp symbol)
 100                         integer
 101                         (choice string function symbol))
 102                   function))
 103   :group 'muse-xml)
 104
 105 (defcustom muse-xml-markup-functions
 106   '((anchor . muse-xml-markup-anchor)
 107     (table . muse-xml-markup-table))
 108   "An alist of style types to custom functions for that kind of text.
 109 For more on the structure of this list, see
 110 `muse-publish-markup-functions'."
 111   :type '(alist :key-type symbol :value-type function)
 112   :group 'muse-xml)
 113
 114 (defcustom muse-xml-markup-strings
 115   '((image-with-desc . "<image href=\"%s.%s\">%s</image>")
 116     (image           . "<image href=\"%s.%s\"></image>")
 117     (image-link      . "<link type=\"image\" href=\"%s\">%s.%s</link>")
 118     (anchor-ref      . "<link type=\"url\" href=\"#%s\">%s</link>")
 119     (url             . "<link type=\"url\" href=\"%s\">%s</link>")
 120     (link            . "<link type=\"url\" href=\"%s\">%s</link>")
 121     (link-and-anchor . "<link type=\"url\" href=\"%s#%s\">%s</link>")
 122     (email-addr      . "<link type=\"email\" href=\"%s\">%s</link>")
 123     (anchor          . "<anchor id=\"%s\" />\n")
 124     (emdash          . "%s--%s")
 125     (comment-begin   . "<!-- ")
 126     (comment-end     . " -->")
 127     (rule            . "<hr />")
 128     (fn-sep          . "<hr />\n")
 129     (no-break-space  . "&nbsp;")
 130     (enddots         . "....")
 131     (dots            . "...")
 132     (section         . "<section level=\"1\"><title>")
 133     (section-end     . "</title>")
 134     (subsection      . "<section level=\"2\"><title>")
 135     (subsection-end  . "</title>")
 136     (subsubsection   . "<section level=\"3\"><title>")
 137     (subsubsection-end . "</title>")
 138     (section-other   . "<section level=\"%s\"><title>")
 139     (section-other-end . "</title>")
 140     (section-close   . "</section>")
 141     (footnote        . "<footnote>")
 142     (footnote-end    . "</footnote>")
 143     (begin-underline . "<format type=\"underline\">")
 144     (end-underline   . "</format>")
 145     (begin-literal   . "<code>")
 146     (end-literal     . "</code>")
 147     (begin-emph      . "<format type=\"emphasis\" level=\"1\">")
 148     (end-emph        . "</format>")
 149     (begin-more-emph . "<format type=\"emphasis\" level=\"2\">")
 150     (end-more-emph   . "</format>")
 151     (begin-most-emph . "<format type=\"emphasis\" level=\"3\">")
 152     (end-most-emph   . "</format>")
 153     (begin-verse     . "<verse>\n")
 154     (begin-verse-line . "<line>")
 155     (end-verse-line  . "</line>")
 156     (empty-verse-line . "<line />")
 157     (begin-last-stanza-line . "<line>")
 158     (end-last-stanza-line . "</line>")
 159     (end-verse       . "</verse>")
 160     (begin-example   . "<example>")
 161     (end-example     . "</example>")
 162     (begin-center    . "<p><format type=\"center\">\n")
 163     (end-center      . "\n</format></p>")
 164     (begin-quote     . "<blockquote>\n")
 165     (end-quote       . "\n</blockquote>")
 166     (begin-quote-item . "<p>")
 167     (end-quote-item  . "</p>")
 168     (begin-uli       . "<list type=\"unordered\">\n")
 169     (end-uli         . "\n</list>")
 170     (begin-uli-item  . "<item>")
 171     (end-uli-item    . "</item>")
 172     (begin-oli       . "<list type=\"ordered\">\n")
 173     (end-oli         . "\n</list>")
 174     (begin-oli-item  . "<item>")
 175     (end-oli-item    . "</item>")
 176     (begin-dl        . "<list type=\"definition\">\n")
 177     (end-dl          . "\n</list>")
 178     (begin-dl-item   . "<item>\n")
 179     (end-dl-item     . "\n</item>")
 180     (begin-ddt       . "<term>")
 181     (end-ddt         . "</term>")
 182     (begin-dde       . "<definition>")
 183     (end-dde         . "</definition>")
 184     (begin-table     . "<table%s>\n")
 185     (end-table       . "</table>")
 186     (begin-table-row . "    <tr>\n")
 187     (end-table-row   . "    </tr>\n")
 188     (begin-table-entry . "      <%s>")
 189     (end-table-entry . "</%s>\n"))
 190   "Strings used for marking up text.
 191 These cover the most basic kinds of markup, the handling of which
 192 differs little between the various styles."
 193   :type '(alist :key-type symbol :value-type string)
 194   :group 'muse-xml)
 195
 196 (defcustom muse-xml-encoding-default 'utf-8
 197   "The default Emacs buffer encoding to use in published files.
 198 This will be used if no special characters are found."
 199   :type 'symbol
 200   :group 'muse-xml)
 201
 202 (defcustom muse-xml-charset-default "utf-8"
 203   "The default XML charset to use if no translation is
 204 found in `muse-xml-encoding-map'."
 205   :type 'string
 206   :group 'muse-xml)
 207
 208 (defun muse-xml-encoding ()
 209   (muse-xml-transform-content-type
 210    (or (and (boundp 'buffer-file-coding-system)
 211             buffer-file-coding-system)
 212        muse-xml-encoding-default)
 213    muse-xml-charset-default))
 214
 215 (defun muse-xml-markup-paragraph ()
 216   (let ((end (copy-marker (match-end 0) t)))
 217     (goto-char (match-beginning 0))
 218     (when (save-excursion
 219             (save-match-data
 220               (and (re-search-backward "<\\(/?\\)p[ >]"
 221                                        nil t)
 222                    (not (string-equal (match-string 1) "/")))))
 223       (when (get-text-property (1- (point)) 'end-list)
 224         (goto-char (previous-single-property-change (1- (point)) 'end-list)))
 225       (muse-insert-markup "</p>"))
 226     (goto-char end))
 227   (cond
 228    ((eobp)
 229     (unless (bolp)
 230       (insert "\n")))
 231    ((eq (char-after) ?\<)
 232     (when (looking-at (concat "<\\(format\\|code\\|link\\|image"
 233                               "\\|anchor\\|footnote\\)[ >]"))
 234       (muse-insert-markup "<p>")))
 235    (t
 236     (muse-insert-markup "<p>"))))
 237
 238 (defun muse-xml-finalize-buffer ()
 239   (when (boundp 'buffer-file-coding-system)
 240     (when (memq buffer-file-coding-system '(no-conversion undecided-unix))
 241       ;; make it agree with the default charset
 242       (setq buffer-file-coding-system muse-xml-encoding-default))))
 243
 244 ;;; Register the Muse XML Publisher
 245
 246 (muse-define-style "xml"
 247                    :suffix     'muse-xml-extension
 248                    :regexps    'muse-xml-markup-regexps
 249                    :functions  'muse-xml-markup-functions
 250                    :strings    'muse-xml-markup-strings
 251                    :specials   'muse-xml-decide-specials
 252                    :after      'muse-xml-finalize-buffer
 253                    :header     'muse-xml-header
 254                    :footer     'muse-xml-footer
 255                    :browser    'find-file)
 256
 257 (provide 'muse-xml)
 258
 259 ;;; muse-xml.el ends here