lisp/muse-journal.el

   1 ;;; muse-journal.el --- keep and publish a journal
   2
   3 ;; Copyright (C) 2004, 2005, 2006, 2007 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 ;; The module facilitates the keeping and publication of a journal.
  25 ;; When publishing to HTML, it assumes the form of a web log, or blog.
  26 ;;
  27 ;; The input format for each entry is as follows:
  28 ;;
  29 ;;   * 20040317: Title of entry
  30 ;;
  31 ;;   Text for the entry.
  32 ;;
  33 ;;   <qotd>
  34 ;;   "You know who you are. It comes down to a simple gut check: You
  35 ;;   either love what you do or you don't. Period." -- P. Bronson
  36 ;;   </qotd>
  37 ;;
  38 ;; The "qotd", or Quote of the Day, is entirely optional.  When
  39 ;; generated to HTML, this entry is rendered as:
  40 ;;
  41 ;;   <div class="entry">
  42 ;;     <div class="entry-qotd">
  43 ;;       <h3>Quote of the Day:</h3>
  44 ;;       <p>"You know who you are. It comes down to a simple gut
  45 ;;         check: You either love what you do or you don't. Period."
  46 ;;         -- P. Bronson</p>
  47 ;;     </div>
  48 ;;     <div class="entry-body">
  49 ;;       <div class="entry-head">
  50 ;;         <div class="entry-date">
  51 ;;           <span class="date">March 17, 2004</span>
  52 ;;         </div>
  53 ;;         <div class="entry-title">
  54 ;;           <h2>Title of entry</h2>
  55 ;;         </div>
  56 ;;       </div>
  57 ;;       <div class="entry-text">
  58 ;;         <p>Text for the entry.</p>
  59 ;;       </div>
  60 ;;     </div>
  61 ;;   </div>
  62 ;;
  63 ;; The plurality of "div" tags makes it possible to display the
  64 ;; entries in any form you wish, using a CSS style.
  65 ;;
  66 ;; Also, an .RDF file can be generated from your journal by publishing
  67 ;; it with the "rdf" style.  It uses the first two sentences of the
  68 ;; first paragraph of each entry as its "description", and
  69 ;; autogenerates tags for linking to the various entries.
  70
  71 ;;; Contributors:
  72
  73 ;; René Stadler (mail AT renestadler DOT de) provided a patch that
  74 ;; causes dates in RSS feeds to be generated in a format that RSS
  75 ;; readers can parse.
  76
  77 ;;; Code:
  78
  79 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  80 ;;
  81 ;; Muse Journal Publishing
  82 ;;
  83 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  84
  85 (require 'muse-publish)
  86 (require 'muse-html)
  87 (require 'muse-latex)
  88 (require 'muse-book)
  89
  90 (defgroup muse-journal nil
  91   "Rules for transforming a journal into its final form."
  92   :group 'muse-publish)
  93
  94 (defcustom muse-journal-heading-regexp
  95   "\\(?:\\([0-9]+\\)\\(?:: \\)?\\)?\\(.+?\\)?"
  96   "A regexp that matches a journal heading.
  97 Paren group 1 is the ISO date, group 2 is the optional category,
  98 and group 3 is the optional heading for the entry."
  99   :type 'regexp
 100   :group 'muse-journal)
 101
 102 (defcustom muse-journal-date-format "%a, %e %b %Y"
 103   "Date format to use for journal entries."
 104   :type 'string
 105   :group 'muse-journal)
 106
 107 (defcustom muse-journal-html-heading-regexp
 108   (concat "^<h2[^>\n]*>" muse-journal-heading-regexp "</h2>$")
 109   "A regexp that matches a journal heading from an HTML document.
 110 Paren group 1 is the ISO date, group 2 is the optional category,
 111 and group 3 is the optional heading for the entry."
 112   :type 'regexp
 113   :group 'muse-journal)
 114
 115 (defcustom muse-journal-rss-heading-regexp
 116   (concat "^\\* " muse-journal-heading-regexp "$")
 117   "A regexp that matches a journal heading from an HTML document.
 118 Paren group 1 is the ISO date, group 2 is the optional category,
 119 and group 3 is the optional heading for the entry."
 120   :type 'regexp
 121   :group 'muse-journal)
 122
 123 (defcustom muse-journal-html-entry-template
 124   "<div class=\"entry\">
 125   <a name=\"%anchor%\" style=\"text-decoration: none\">&nbsp;</a>
 126   <div class=\"entry-body\">
 127     <div class=\"entry-head\">
 128       <div class=\"entry-date\">
 129         <span class=\"date\">%date%</span>
 130       </div>
 131       <div class=\"entry-title\">
 132         <h2>%title%</h2>
 133       </div>
 134     </div>
 135     <div class=\"entry-text\">
 136       <div class=\"entry-qotd\">
 137         <p>%qotd%</p>
 138       </div>
 139 %text%
 140     </div>
 141   </div>
 142 </div>\n\n"
 143   "Template used to publish individual journal entries as HTML.
 144 This may be text or a filename."
 145   :type 'string
 146   :group 'muse-journal)
 147
 148 (defcustom muse-journal-latex-section
 149   "\\section*{%title% \\hfill {\\normalsize %date%}}
 150 \\addcontentsline{toc}{chapter}{%title%}"
 151   "Template used to publish a LaTeX section."
 152   :type 'string
 153   :group 'muse-journal)
 154
 155 (defcustom muse-journal-latex-subsection
 156   "\\subsection*{%title%}
 157 \\addcontentsline{toc}{section}{%title%}"
 158   "Template used to publish a LaTeX subsection."
 159   :type 'string
 160   :group 'muse-journal)
 161
 162 (defcustom muse-journal-latex-markup-tags
 163   '(("qotd" t nil nil muse-journal-latex-qotd-tag))
 164   "A list of tag specifications, for specially marking up LaTeX.
 165 See `muse-publish-markup-tags' for more info."
 166   :type '(repeat (list (string :tag "Markup tag")
 167                        (boolean :tag "Expect closing tag" :value t)
 168                        (boolean :tag "Parse attributes" :value nil)
 169                        (boolean :tag "Nestable" :value nil)
 170                        function))
 171   :group 'muse-journal)
 172
 173 ;; FIXME: This doesn't appear to be used.
 174 (defun muse-journal-generate-pages ()
 175   (let ((output-dir (muse-style-element :path)))
 176     (goto-char (point-min))
 177     (while (re-search-forward muse-journal-heading-regexp nil t)
 178       (let* ((date (match-string 1))
 179              (category (match-string 1))
 180              (category-file (concat output-dir category "/index.html"))
 181              (heading (match-string 1)))
 182         t))))
 183
 184 (defcustom muse-journal-rdf-extension ".rdf"
 185   "Default file extension for publishing RDF (RSS 1.0) files."
 186   :type 'string
 187   :group 'muse-journal)
 188
 189 (defcustom muse-journal-rdf-base-url ""
 190   "The base URL of the website referenced by the RDF file."
 191   :type 'string
 192   :group 'muse-journal)
 193
 194 (defcustom muse-journal-rdf-header
 195   "<rdf:RDF xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"
 196          xmlns=\"http://purl.org/rss/1.0/\"
 197          xmlns:dc=\"http://purl.org/dc/elements/1.1/\">
 198   <channel rdf:about=\"<lisp>(concat (muse-style-element :base-url)
 199                                      (muse-publish-link-name))</lisp>\">
 200     <title><lisp>(muse-publishing-directive \"title\")</lisp></title>
 201     <link><lisp>(concat (muse-style-element :base-url)
 202                        (concat (muse-page-name)
 203                                muse-html-extension))</lisp></link>
 204     <description><lisp>(muse-publishing-directive \"desc\")</lisp></description>
 205     <items>
 206       <rdf:Seq>
 207         <rdf:li resource=\"<lisp>
 208           (concat (muse-style-element :base-url)
 209                   (concat (muse-page-name)
 210                           muse-html-extension))</lisp>\"/>
 211       </rdf:Seq>
 212     </items>
 213   </channel>\n"
 214   "Header used for publishing RDF (RSS 1.0) files.
 215 This may be text or a filename."
 216   :type 'string
 217   :group 'muse-journal)
 218
 219 (defcustom muse-journal-rdf-footer
 220   "</rdf:RDF>\n"
 221   "Footer used for publishing RDF (RSS 1.0) files.
 222 This may be text or a filename."
 223   :type 'string
 224   :group 'muse-journal)
 225
 226 (defcustom muse-journal-rdf-date-format
 227   "%Y-%m-%dT%H:%M:%S"
 228   "Date format to use for RDF entries."
 229   :type 'string
 230   :group 'muse-journal)
 231
 232 (defcustom muse-journal-rdf-entry-template
 233   "\n  <item rdf:about=\"%link%#%anchor%\">
 234     <title>%title%</title>
 235     <description>
 236       %desc%
 237     </description>
 238     <link>%link%#%anchor%</link>
 239     <dc:date>%date%</dc:date>
 240     <dc:creator>%maintainer%</dc:creator>
 241   </item>\n"
 242   "Template used to publish individual journal entries as RDF.
 243 This may be text or a filename."
 244   :type 'string
 245   :group 'muse-journal)
 246
 247 (defcustom muse-journal-rdf-summarize-entries t
 248   "If non-nil, include only summaries in the RDF file, not the full data."
 249   :type 'boolean
 250   :group 'muse-journal)
 251
 252 (defcustom muse-journal-rss-extension ".xml"
 253   "Default file extension for publishing RSS 2.0 files."
 254   :type 'string
 255   :group 'muse-journal)
 256
 257 (defcustom muse-journal-rss-base-url ""
 258   "The base URL of the website referenced by the RSS file."
 259   :type 'string
 260   :group 'muse-journal)
 261
 262 (defcustom muse-journal-rss-header
 263   "<\?xml version=\"1.0\" encoding=\"<lisp>
 264   (muse-html-encoding)</lisp>\"?>
 265 <rss version=\"2.0\">
 266   <channel>
 267     <title><lisp>(muse-publishing-directive \"title\")</lisp></title>
 268     <link><lisp>(concat (muse-style-element :base-url)
 269                         (concat (muse-page-name)
 270                                 muse-html-extension))</lisp></link>
 271     <description><lisp>(muse-publishing-directive \"desc\")</lisp></description>
 272     <language>en-us</language>
 273     <generator>Emacs Muse</generator>\n\n"
 274   "Header used for publishing RSS 2.0 files.  This may be text or a filename."
 275   :type 'string
 276   :group 'muse-journal)
 277
 278 (defcustom muse-journal-rss-footer
 279   "\n\n  </channel>
 280 </rss>\n"
 281   "Footer used for publishing RSS 2.0 files.  This may be text or a filename."
 282   :type 'string
 283   :group 'muse-journal)
 284
 285 (defcustom muse-journal-rss-date-format
 286   "%a, %d %b %Y %H:%M:%S %Z"
 287   "Date format to use for RSS 2.0 entries."
 288   :type 'string
 289   :group 'muse-journal)
 290
 291 (defcustom muse-journal-rss-entry-template
 292   "\n    <item>
 293       <title>%title%</title>
 294       <link>%link%#%anchor%</link>
 295       <description>%desc%</description>
 296       <author><lisp>(muse-publishing-directive \"author\")</lisp></author>
 297       <pubDate>%date%</pubDate>
 298       <guid>%link%#%anchor%</guid>
 299       %enclosure%
 300     </item>\n"
 301   "Template used to publish individual journal entries as RSS 2.0.
 302 This may be text or a filename."
 303   :type 'string
 304   :group 'muse-journal)
 305
 306 (defcustom muse-journal-rss-enclosure-types-alist
 307   '(("mp3" . "audio/mpeg"))
 308   "File types that are accepted as RSS enclosures.
 309 This is an alist that maps file extension to content type.
 310 Useful for podcasting."
 311   :type '(alist :key-type string :value-type string)
 312   :group 'muse-journal)
 313
 314 (defcustom muse-journal-rss-summarize-entries nil
 315   "If non-nil, include only summaries in the RSS file, not the full data.
 316 Many RSS subscribers find this annoying."
 317   :type 'boolean
 318   :group 'muse-journal)
 319
 320 (defcustom muse-journal-rss-markup-regexps
 321   '((10000 muse-explicit-link-regexp 0 "\\2"))
 322   "List of markup rules for publishing a Muse journal page to RSS 2.0.
 323 For more information on the structure of this list, see
 324 `muse-publish-markup-regexps'."
 325   :type '(repeat (choice
 326                   (list :tag "Markup rule"
 327                         integer
 328                         (choice regexp symbol)
 329                         integer
 330                         (choice string function symbol))
 331                   function))
 332   :group 'muse-journal)
 333
 334 (defcustom muse-journal-rss-markup-functions
 335   '((email . ignore)
 336     (link  . ignore)
 337     (url   . ignore))
 338   "An alist of style types to custom functions for that kind of text.
 339 For more on the structure of this list, see
 340 `muse-publish-markup-functions'."
 341   :type '(alist :key-type symbol :value-type function)
 342   :group 'muse-journal)
 343
 344 (defun muse-journal-anchorize-title (title)
 345   (save-match-data
 346     (if (string-match "(" title)
 347         (setq title (substring title 0 (match-beginning 0))))
 348     (if (string-match "<[^>]+>" title)
 349         (setq title (replace-match "" nil nil title)))
 350     (downcase (muse-replace-regexp-in-string "[^a-zA-Z0-9_]" "" title))))
 351
 352 (defun muse-journal-sort-entries (&optional direction)
 353   (interactive "P")
 354   (sort-subr
 355    direction
 356    (function
 357     (lambda ()
 358       (if (re-search-forward "^\\* [0-9]+" nil t)
 359           (goto-char (match-beginning 0))
 360         (goto-char (point-max)))))
 361    (function
 362     (lambda ()
 363       (if (re-search-forward "^\\* [0-9]+" nil t)
 364           (goto-char (1- (match-beginning 0)))
 365         (goto-char (point-max)))))
 366    (function
 367     (lambda ()
 368       (forward-char 2)))
 369    (function
 370     (lambda ()
 371       (end-of-line)))))
 372
 373 (defun muse-journal-html-munge-buffer ()
 374   (goto-char (point-min))
 375   (let ((heading-regexp muse-journal-html-heading-regexp)
 376         (inhibit-read-only t))
 377     (while (re-search-forward heading-regexp nil t)
 378       (let* ((date (match-string 1))
 379              (orig-date date)
 380              (title (match-string 2))
 381              (clean-title title)
 382              datestamp qotd text)
 383         (delete-region (match-beginning 0) (match-end 0))
 384         (if clean-title
 385             (save-match-data
 386               (while (string-match "\\(^<[^>]+>\\|<[^>]+>$\\)" clean-title)
 387                 (setq clean-title (replace-match "" nil nil clean-title)))))
 388         (save-match-data
 389           (when (and date
 390                      (string-match
 391                       (concat "\\`\\([1-9][0-9][0-9][0-9]\\)[./]?"
 392                               "\\([0-1][0-9]\\)[./]?\\([0-3][0-9]\\)") date))
 393             (setq datestamp
 394                   (encode-time
 395                    0 0 0
 396                    (string-to-number (match-string 3 date))
 397                    (string-to-number (match-string 2 date))
 398                    (string-to-number (match-string 1 date))
 399                    (current-time-zone))
 400                   date (concat (format-time-string
 401                                 muse-journal-date-format datestamp)
 402                                (substring date (match-end 0))))))
 403         (save-restriction
 404           (narrow-to-region
 405            (point) (if (re-search-forward
 406                         (concat "\\(^<hr>$\\|"
 407                                 heading-regexp "\\)") nil t)
 408                        (match-beginning 0)
 409                      (point-max)))
 410           (goto-char (point-max))
 411           (while (and (not (bobp))
 412                       (eq ?\  (char-syntax (char-before))))
 413             (delete-char -1))
 414           (goto-char (point-min))
 415           (while (and (not (eobp))
 416                       (eq ?\  (char-syntax (char-after))))
 417             (delete-char 1))
 418           (save-excursion
 419             (when (search-forward "<qotd>" nil t)
 420               (let ((tag-beg (match-beginning 0))
 421                     (beg (match-end 0))
 422                     end)
 423                 (re-search-forward "</qotd>\n*")
 424                 (setq end (point-marker))
 425                 (save-restriction
 426                   (narrow-to-region beg (match-beginning 0))
 427                   (muse-publish-escape-specials (point-min) (point-max)
 428                                                 nil 'document)
 429                   (setq qotd (buffer-substring-no-properties
 430                               (point-min) (point-max))))
 431                 (delete-region tag-beg end))))
 432           (setq text (buffer-string))
 433           (delete-region (point-min) (point-max))
 434           (let ((entry muse-journal-html-entry-template))
 435             (muse-insert-file-or-string entry)
 436             (muse-publish-mark-read-only (point-min) (point-max))
 437             (goto-char (point-min))
 438             (while (search-forward "%date%" nil t)
 439               (remove-text-properties (match-beginning 0) (match-end 0)
 440                                       '(read-only nil rear-nonsticky nil))
 441               (replace-match (or date "") nil t))
 442             (goto-char (point-min))
 443             (while (search-forward "%title%" nil t)
 444               (remove-text-properties (match-beginning 0) (match-end 0)
 445                                       '(read-only nil rear-nonsticky nil))
 446               (replace-match (or title "&nbsp;") nil t))
 447             (goto-char (point-min))
 448             (while (search-forward "%anchor%" nil t)
 449               (replace-match (muse-journal-anchorize-title
 450                               (or clean-title orig-date))
 451                              nil t))
 452             (goto-char (point-min))
 453             (while (search-forward "%qotd%" nil t)
 454               (save-restriction
 455                 (narrow-to-region (match-beginning 0) (match-end 0))
 456                 (delete-region (point-min) (point-max))
 457                 (when qotd (muse-insert-markup qotd))))
 458             (goto-char (point-min))
 459             (while (search-forward "%text%" nil t)
 460               (remove-text-properties (match-beginning 0) (match-end 0)
 461                                       '(read-only nil rear-nonsticky nil))
 462               (replace-match text nil t))
 463             (when (null qotd)
 464               (goto-char (point-min))
 465               (when (search-forward "<div class=\"entry-qotd\">" nil t)
 466                 (let ((beg (match-beginning 0)))
 467                   (re-search-forward "</div>\n*" nil t)
 468                   (delete-region beg (point))))))))))
 469   ;; indicate that we are to continue the :before-end processing
 470   nil)
 471
 472 (defun muse-journal-latex-munge-buffer ()
 473   (goto-char (point-min))
 474   (let ((heading-regexp
 475          (concat "^" (regexp-quote (muse-markup-text 'section))
 476                  muse-journal-heading-regexp
 477                  (regexp-quote (muse-markup-text 'section-end)) "$"))
 478         (inhibit-read-only t))
 479     (when (re-search-forward heading-regexp nil t)
 480       (goto-char (match-beginning 0))
 481       (sort-subr nil
 482                  (function
 483                   (lambda ()
 484                     (if (re-search-forward heading-regexp nil t)
 485                         (goto-char (match-beginning 0))
 486                       (goto-char (point-max)))))
 487                  (function
 488                   (lambda ()
 489                     (if (re-search-forward heading-regexp nil t)
 490                         (goto-char (1- (match-beginning 0)))
 491                       (goto-char (point-max)))))
 492                  (function
 493                   (lambda ()
 494                     (forward-char 2)))
 495                  (function
 496                   (lambda ()
 497                     (end-of-line)))))
 498     (while (re-search-forward heading-regexp nil t)
 499       (let ((date (match-string 1))
 500             (title (match-string 2))
 501             ;; FIXME: Nothing is done with qotd
 502             qotd section)
 503         (save-match-data
 504           (when (and date
 505                      (string-match
 506                       (concat "\\([1-9][0-9][0-9][0-9]\\)[./]?"
 507                               "\\([0-1][0-9]\\)[./]?\\([0-3][0-9]\\)") date))
 508             (setq date (encode-time
 509                         0 0 0
 510                         (string-to-number (match-string 3 date))
 511                         (string-to-number (match-string 2 date))
 512                         (string-to-number (match-string 1 date))
 513                         (current-time-zone))
 514                   date (format-time-string
 515                         muse-journal-date-format date))))
 516         (save-restriction
 517           (narrow-to-region (match-beginning 0) (match-end 0))
 518           (delete-region (point-min) (point-max))
 519           (muse-insert-markup muse-journal-latex-section)
 520           (goto-char (point-min))
 521           (while (search-forward "%title%" nil t)
 522             (replace-match (or title "Untitled") nil t))
 523           (goto-char (point-min))
 524           (while (search-forward "%date%" nil t)
 525             (replace-match (or date "") nil t))))))
 526   (goto-char (point-min))
 527   (let ((subheading-regexp
 528          (concat "^" (regexp-quote (muse-markup-text 'subsection))
 529                  "\\([^\n}]+\\)"
 530                  (regexp-quote (muse-markup-text 'subsection-end)) "$"))
 531         (inhibit-read-only t))
 532     (while (re-search-forward subheading-regexp nil t)
 533       (let ((title (match-string 1)))
 534         (save-restriction
 535           (narrow-to-region (match-beginning 0) (match-end 0))
 536           (delete-region (point-min) (point-max))
 537           (muse-insert-markup muse-journal-latex-subsection)
 538           (goto-char (point-min))
 539           (while (search-forward "%title%" nil t)
 540             (replace-match title nil t))))))
 541   ;; indicate that we are to continue the :before-end processing
 542   nil)
 543
 544 (defun muse-journal-latex-qotd-tag (beg end)
 545   (muse-publish-ensure-block beg)
 546   (muse-insert-markup (muse-markup-text 'begin-quote))
 547   (goto-char end)
 548   (muse-insert-markup (muse-markup-text 'end-quote)))
 549
 550 (defun muse-journal-rss-munge-buffer ()
 551   (goto-char (point-min))
 552   (let ((heading-regexp muse-journal-rss-heading-regexp)
 553         (inhibit-read-only t))
 554     (while (re-search-forward heading-regexp nil t)
 555       (let* ((date (match-string 1))
 556              (orig-date date)
 557              (title (match-string 2))
 558              ;; FIXME: Nothing is done with qotd
 559              enclosure qotd desc)
 560         (if title
 561             (save-match-data
 562               (if (string-match muse-explicit-link-regexp title)
 563                   (setq enclosure (muse-get-link title)
 564                         title (muse-get-link-desc title)))))
 565         (save-match-data
 566           (when (and date
 567                      (string-match
 568                       (concat "\\([1-9][0-9][0-9][0-9]\\)[./]?"
 569                               "\\([0-1][0-9]\\)[./]?\\([0-3][0-9]\\)") date))
 570             (setq date (encode-time 0 0 0
 571                                     (string-to-number (match-string 3 date))
 572                                     (string-to-number (match-string 2 date))
 573                                     (string-to-number (match-string 1 date))
 574                                     (current-time-zone))
 575                   ;; make sure that date is in a format that RSS
 576                   ;; readers can handle
 577                   date (let ((system-time-locale "C"))
 578                          (format-time-string
 579                           (muse-style-element :date-format) date)))))
 580         (save-restriction
 581           (narrow-to-region
 582            (match-beginning 0)
 583            (if (re-search-forward heading-regexp nil t)
 584                (match-beginning 0)
 585              (if (re-search-forward "^Footnotes:" nil t)
 586                  (match-beginning 0)
 587                (point-max))))
 588           (goto-char (point-min))
 589           (delete-region (point) (muse-line-end-position))
 590           (re-search-forward "</qotd>\n+" nil t)
 591           (while (and (char-after)
 592                       (eq ?\  (char-syntax (char-after))))
 593             (delete-char 1))
 594           (let ((beg (point)))
 595             (if (muse-style-element :summarize)
 596                 (progn
 597                   (forward-sentence 2)
 598                   (setq desc (concat (buffer-substring beg (point)) "...")))
 599               (save-restriction
 600                 (muse-publish-markup-buffer "rss-entry" "html")
 601                 (goto-char (point-min))
 602                 (if (re-search-forward "Page published by Emacs Muse" nil t)
 603                     (goto-char (muse-line-end-position))
 604                   (muse-display-warning
 605                    (concat
 606                     "Cannot find 'Page published by Emacs Muse begins here'.\n"
 607                     "You will probably need this text in your header."))
 608                   (goto-char (point-min)))
 609                 (setq beg (point))
 610                 (if (re-search-forward "Page published by Emacs Muse" nil t)
 611                     (goto-char (muse-line-beginning-position))
 612                   (muse-display-warning
 613                    (concat
 614                     "Cannot find 'Page published by Emacs Muse ends here'.\n"
 615                     "You will probably need this text in your footer."))
 616                   (goto-char (point-max)))
 617                 (setq desc (concat "<![CDATA[" (buffer-substring beg (point))
 618                                    "]]>")))))
 619           (delete-region (point-min) (point-max))
 620           (let ((entry (muse-style-element :entry-template)))
 621             (muse-insert-file-or-string entry)
 622             (goto-char (point-min))
 623             (while (search-forward "%date%" nil t)
 624               (replace-match (or date "") nil t))
 625             (goto-char (point-min))
 626             (while (search-forward "%title%" nil t)
 627               (replace-match "")
 628               (save-restriction
 629                 (narrow-to-region (point) (point))
 630                 (insert (or title "Untitled"))
 631                 (remove-text-properties (match-beginning 0) (match-end 0)
 632                                         '(read-only nil rear-nonsticky nil))
 633                 (let ((muse-publishing-current-style (muse-style "xml")))
 634                   (muse-publish-escape-specials (point-min) (point-max)
 635                                                 nil 'document))))
 636             (goto-char (point-min))
 637             (while (search-forward "%desc%" nil t)
 638               (replace-match desc nil t))
 639             (goto-char (point-min))
 640             (while (search-forward "%enclosure%" nil t)
 641               (replace-match
 642                (if (null enclosure)
 643                    ""
 644                  (save-match-data
 645                    (format
 646                     "<enclosure url=\"%s\" %stype=\"%s\"/>"
 647                     (if (string-match "//" enclosure)
 648                         enclosure
 649                       (concat (muse-style-element :base-url)
 650                               enclosure))
 651                     (let ((file
 652                            (expand-file-name enclosure
 653                                              (muse-style-element :path))))
 654                       (if (file-readable-p file)
 655                           (format "length=\"%d\" "
 656                                   (nth 7 (file-attributes file)))
 657                         ""))
 658                     (if (string-match "\\.\\([^.]+\\)$" enclosure)
 659                         (let* ((ext (match-string 1 enclosure))
 660                                (type
 661                                 (assoc
 662                                  ext muse-journal-rss-enclosure-types-alist)))
 663                           (if type
 664                               (cdr type)
 665                             "application/octet-stream"))))))
 666                nil t))
 667             (goto-char (point-min))
 668             (while (search-forward "%link%" nil t)
 669               (replace-match
 670                (concat (muse-style-element :base-url)
 671                        (concat (muse-page-name)
 672                                muse-html-extension))
 673                nil t))
 674             (goto-char (point-min))
 675             (while (search-forward "%anchor%" nil t)
 676               (replace-match
 677                (muse-journal-anchorize-title (or title orig-date))
 678                nil t))
 679             (goto-char (point-min))
 680             (while (search-forward "%maintainer%" nil t)
 681               (replace-match
 682                (or (muse-style-element :maintainer)
 683                    (concat "webmaster@" (system-name)))
 684                nil t)))))))
 685   ;; indicate that we are to continue the :before-end processing
 686   nil)
 687
 688
 689 ;;; Register the Muse Journal Publishers
 690
 691 (muse-derive-style "journal-html" "html"
 692                    :before-end 'muse-journal-html-munge-buffer)
 693
 694 (muse-derive-style "journal-xhtml" "xhtml"
 695                    :before-end 'muse-journal-html-munge-buffer)
 696
 697 (muse-derive-style "journal-latex" "latex"
 698                    :tags 'muse-journal-latex-markup-tags
 699                    :before-end 'muse-journal-latex-munge-buffer)
 700
 701 (muse-derive-style "journal-pdf" "pdf"
 702                    :tags 'muse-journal-latex-markup-tags
 703                    :before-end 'muse-journal-latex-munge-buffer)
 704
 705 (muse-derive-style "journal-book-latex" "book-latex"
 706                    ;;:nochapters
 707                    :tags 'muse-journal-latex-markup-tags
 708                    :before-end 'muse-journal-latex-munge-buffer)
 709
 710 (muse-derive-style "journal-book-pdf" "book-pdf"
 711                    ;;:nochapters
 712                    :tags 'muse-journal-latex-markup-tags
 713                    :before-end 'muse-journal-latex-munge-buffer)
 714
 715 (muse-define-style "journal-rdf"
 716                    :suffix         'muse-journal-rdf-extension
 717                    :regexps        'muse-journal-rss-markup-regexps
 718                    :functions      'muse-journal-rss-markup-functions
 719                    :before         'muse-journal-rss-munge-buffer
 720                    :header         'muse-journal-rdf-header
 721                    :footer         'muse-journal-rdf-footer
 722                    :date-format    'muse-journal-rdf-date-format
 723                    :entry-template 'muse-journal-rdf-entry-template
 724                    :base-url       'muse-journal-rdf-base-url
 725                    :summarize      'muse-journal-rdf-summarize-entries)
 726
 727 (muse-define-style "journal-rss"
 728                    :suffix         'muse-journal-rss-extension
 729                    :regexps        'muse-journal-rss-markup-regexps
 730                    :functions      'muse-journal-rss-markup-functions
 731                    :before         'muse-journal-rss-munge-buffer
 732                    :header         'muse-journal-rss-header
 733                    :footer         'muse-journal-rss-footer
 734                    :date-format    'muse-journal-rss-date-format
 735                    :entry-template 'muse-journal-rss-entry-template
 736                    :base-url       'muse-journal-rss-base-url
 737                    :summarize      'muse-journal-rss-summarize-entries)
 738
 739 (provide 'muse-journal)
 740
 741 ;;; muse-journal.el ends here