2 rcs_id('$Id: CreateToc.php,v 1.26 2004-09-20 14:07:16 rurban Exp $');
4 Copyright 2004 $ThePhpWikiProgrammingTeam
6 This file is part of PhpWiki.
8 PhpWiki is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 PhpWiki is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with PhpWiki; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 * CreateToc: Automatically link to headers
27 * <?plugin CreateToc headers=!!!,!! with_toclink||=1
29 * @author: Reini Urban
32 * - MacIE will not work with jshide.
33 * - it will crash with old markup!
34 * - Certain corner-edges will not work with TOC_FULL_SYNTAX.
35 * I believe I fixed all of them now, but who knows?
36 * - bug #969495 "existing labels not honored" seems to be fixed.
39 if (!defined('TOC_FULL_SYNTAX'))
40 define('TOC_FULL_SYNTAX',1);
42 class WikiPlugin_CreateToc
46 return _("CreateToc");
49 function getDescription() {
50 return _("Automatically link headers at the top");
53 function getVersion() {
54 return preg_replace("/[Revision: $]/", '',
55 "\$Revision: 1.26 $");
58 function getDefaultArguments() {
59 return array( 'pagename' => '[pagename]', // not sure yet. TOC of another page here?
60 // or headers=1,2,3 is also possible.
61 'headers' => "!!!,!!,!", // "!!!" => h1, "!!" => h2, "!" => h3
62 'noheader' => 0, // omit <h1>Table of Contents</h1>
64 'with_toclink' => 0, // link back to TOC
65 'jshide' => 0, // collapsed TOC as DHTML button
66 'liststyle' => 'dl', // or 'ul' or 'ol'
67 'indentstr' => ' ',
71 function preg_quote ($heading) {
72 return str_replace(array("/",".","?","*"),
73 array('\/','\.','\?','\*'), $heading);
76 function searchHeader ($content, $start_index, $heading, $level) {
77 $count = substr_count($level,'!');
79 case 1: $h = "h4"; break;
80 case 2: $h = "h3"; break;
81 case 3: $h = "h2"; break;
83 if (defined('TOC_FULL_SYNTAX') and TOC_FULL_SYNTAX) {
84 $theading = TransformInline($heading);
85 $qheading = preg_quote($theading->asString());
87 $qheading = preg_quote($heading);
89 for ($j=$start_index; $j < count($content); $j++) {
90 if (is_string($content[$j])) {
91 if (preg_match("/<$h>$qheading<\/$h>/",$content[$j])) {
94 } elseif (isa($content[$j],'cached_wikilink')) {
95 // shortcut for single wikiword headers
96 $content[$j] = $content[$j]->asString();
97 if ($content[$j] == $heading and
98 substr($content[$j-1],-4,4) == "<$h>" and
99 substr($content[$j+1],0,5) == "</$h>") {
100 return $j; // single wikiword
101 } elseif (defined('TOC_FULL_SYNTAX') and TOC_FULL_SYNTAX) {
102 //DONE: To allow "!! WikiWord link"
103 // Split heading into WikiWords and check against
104 // joined content (after cached_plugininvocation).
105 // The first wikilink is the anchor then.
107 for ($k=max($j-1,$start_index); $k < count($content); $k++) {
108 $joined .= is_string($content[$k]) ? $content[$k]
109 : $content[$k]->asString();
111 if (preg_match("/<$h>$qheading<\/$h>/",$joined))
116 trigger_error("Heading <$h> $heading </$h> not found\n", E_USER_NOTICE);
120 /** prevent from duplicate anchors,
121 * beautify spaces: " " => "_" and not "x20."
123 function _nextAnchor($s) {
124 static $anchors = array();
126 $s = str_replace(' ','_',$s);
129 while (!empty($anchors[$anchor])) {
130 $anchor = sprintf("%s_%d",$s,$i++);
132 $anchors[$anchor] = $i;
136 // Feature request: proper nesting; multiple levels (e.g. 1,3)
137 function extractHeaders (&$content, &$markup, $backlink=0, $levels=false, $basepage='') {
138 if (!$levels) $levels = array(1,2);
143 for ($i=0; $i<count($content); $i++) {
144 foreach ($levels as $level) {
145 if ($level < 1 or $level > 3) continue;
146 if (preg_match('/^\s*(!{'.$level.','.$level.'})([^!].*)$/',$content[$i],$match)) {
147 if (!strstr($content[$i],'#[')) {
148 $s = trim($match[2]);
149 $anchor = $this->_nextAnchor($s);
150 $manchor = MangleXmlIdentifier($anchor);
151 $headers[] = array('text' => $s, 'anchor' => $anchor, 'level' => $level);
152 // Change original wikitext, but that is useless art...
153 $content[$i] = $match[1]." #[|$manchor][$s|#TOC]";
154 // And now change the to be printed markup (XmlTree):
155 // Search <hn>$s</hn> line in markup
156 //Fixme: Find non-singleworded wikilink'ed headers also.
157 $j = $this->searchHeader($markup->_content, $j, $s, $match[1]);
158 if ($j and isset($markup->_content[$j])) {
159 $x = $markup->_content[$j];
160 if (is_string($markup->_content[$j])) {
161 $heading = preg_quote($s);
162 if ($x = preg_replace('/(<h\d>)('.$heading.')(<\/h\d>)/',
163 "\$1<a name=\"$manchor\"></a>\$2\$3",$x,1)) {
165 $url = WikiURL(new WikiPageName($basepage,false,"TOC"));
166 $x = preg_replace('/(<h\d>)('.$heading.')(<\/h\d>)/',
167 "\$1<a href=\"$url\" name=\"$manchor\">\$2</a>\$3",
168 $markup->_content[$j],1);
170 $markup->_content[$j] = $x;
173 elseif (isa($markup->_content[$j],'cached_wikilink')) {
174 $label = isset($x->_label) ? $x->_label : false;
175 $markup->_content[$j] = HTML::a(array('name'=>$manchor),WikiLink($x->_page, 'auto', $label));
185 function run($dbi, $argstr, &$request, $basepage) {
186 extract($this->getArgs($argstr, $request));
188 // Expand relative page names.
189 $page = new WikiPageName($pagename, $basepage);
190 $pagename = $page->name;
193 return $this->error(_("no page specified"));
195 if ($jshide and isBrowserIE() and browserDetect("Mac")) {
196 //trigger_error(_("jshide set to 0 on Mac IE"), E_USER_NOTICE);
199 $page = $dbi->getPage($pagename);
200 $current = $page->getCurrentRevision();
201 //FIXME: I suspect this only to crash with Apache2
202 if (!$current->get('markup') or $current->get('markup') < 2) {
203 if (in_array(php_sapi_name(),array('apache2handler','apache2filter'))) {
204 trigger_error(_("CreateToc disabled for old markup"), E_USER_WARNING);
208 $content = $current->getContent();
209 $html = HTML::div(array('class' => 'toc','align' => $align));
210 if ($liststyle == 'dl')
211 $list = HTML::dl(array('name'=>'toclist','id'=>'toclist','class' => 'toc'));
212 elseif ($liststyle == 'ul')
213 $list = HTML::ul(array('name'=>'toclist','id'=>'toclist','class' => 'toc'));
214 elseif ($liststyle == 'ol')
215 $list = HTML::ol(array('name'=>'toclist','id'=>'toclist','class' => 'toc'));
216 if (!strstr($headers,",")) {
217 $headers = array($headers);
219 $headers = explode(",",$headers);
222 foreach ($headers as $h) {
223 //replace !!! with level 1, ...
224 if (strstr($h,"!")) {
225 $hcount = substr_count($h,'!');
226 $level = min(max(1, $hcount),3);
229 $level = min(max(1, (int) $h), 3);
233 if (defined('TOC_FULL_SYNTAX') and TOC_FULL_SYNTAX)
234 require_once("lib/InlineParser.php");
235 if ($headers = $this->extractHeaders($content, $dbi->_markup,
236 $with_toclink, $levels, $basepage))
238 foreach ($headers as $h) {
239 // proper heading indent
240 $level = $h['level'];
241 $indent = 3 - $level;
242 $link = new WikiPageName($pagename,$page,$h['anchor']);
243 $li = WikiLink($link,'known',$h['text']);
244 if ($liststyle == 'dl')
245 $list->pushContent(HTML::dt(HTML::raw(str_repeat($indentstr,$indent)),$li));
247 $list->pushContent(HTML::li(HTML::raw(str_repeat($indentstr,$indent)),$li));
251 $list->setAttr('style','display:none;');
252 $html->pushContent(Javascript("
253 function toggletoc(a) {
254 toc=document.getElementById('toclist');
255 if (toc.style.display=='none') {
256 toc.style.display='block';
257 a.title='"._("Click to hide the TOC")."';
259 toc.style.display='none';
260 a.title='"._("Click to display")."';
263 $html->pushContent(HTML::h4(HTML::a(array('name'=>'TOC',
264 'class'=>'wikiaction',
265 'title'=>_("Click to display"),
266 'onclick'=>"toggletoc(this)"),
267 _("Table Of Contents"))));
270 $html->pushContent(HTML::h2(HTML::a(array('name'=>'TOC'),_("Table Of Contents"))));
272 $html->pushContent(HTML::a(array('name'=>'TOC'),""));
274 $html->pushContent($list);
279 // $Log: not supported by cvs2svn $
280 // Revision 1.25 2004/07/08 20:30:07 rurban
281 // plugin->run consistency: request as reference, added basepage.
282 // encountered strange bug in AllPages (and the test) which destroys ->_dbi
284 // Revision 1.24 2004/06/28 13:27:03 rurban
285 // CreateToc disabled for old markup and Apache2 only
287 // Revision 1.23 2004/06/28 13:13:58 rurban
288 // CreateToc disabled for old markup
290 // Revision 1.22 2004/06/15 14:56:37 rurban
291 // more allow_call_time_pass_reference false fixes
293 // Revision 1.21 2004/06/13 09:45:23 rurban
294 // display bug workaround for MacIE browsers, jshide: 0
296 // Revision 1.20 2004/05/11 13:57:46 rurban
297 // enable TOC_FULL_SYNTAX per default
298 // don't <a name>$header</a> to disable css formatting for such anchors
299 // => <a name></a>$header
301 // Revision 1.19 2004/05/08 16:59:27 rurban
302 // requires optional TOC_FULL_SYNTAX constnat to enable full link and
303 // wikiword syntax in headers.
305 // Revision 1.18 2004/04/29 21:55:15 rurban
306 // fixed TOC backlinks with USE_PATH_INFO false
307 // with_toclink=1, sf.net bug #940682
309 // Revision 1.17 2004/04/26 19:43:03 rurban
310 // support most cases of header markup. fixed duplicate MangleXmlIdentifier name
312 // Revision 1.16 2004/04/26 14:46:14 rurban
315 // Revision 1.14 2004/04/21 04:29:50 rurban
316 // write WikiURL consistently (not WikiUrl)
318 // Revision 1.12 2004/03/22 14:13:53 rurban
319 // fixed links to equal named headers
321 // Revision 1.11 2004/03/15 09:52:59 rurban
322 // jshide button: dynamic titles
324 // Revision 1.10 2004/03/14 20:30:21 rurban
327 // Revision 1.9 2004/03/09 19:24:20 rurban
331 // Revision 1.8 2004/03/09 19:05:12 rurban
332 // new liststyle arg. default: dl (no bullets)
334 // Revision 1.7 2004/03/09 11:51:54 rurban
335 // support jshide=1: DHTML button hide/unhide TOC
337 // Revision 1.6 2004/03/09 10:25:37 rurban
338 // slightly better formatted TOC indentation
340 // Revision 1.5 2004/03/09 08:57:10 rurban
341 // convert space to "_" instead of "x20." in anchors
342 // proper heading indent
343 // handle duplicate headers
344 // allow multiple headers like "!!!,!!" or "1,2"
346 // Revision 1.4 2004/03/02 18:21:29 rurban
349 // Revision 1.1 2004/03/01 18:10:28 rurban
350 // first version, without links, anchors and jscript folding
359 // c-hanging-comment-ender-p: nil
360 // indent-tabs-mode: nil