xref: /dokuwiki/inc/parser/renderer.php (revision e24ab4ab794093b0d9ca1095e321b04f9cd956d6)
1<?php
2/**
3 * Renderer output base class
4 *
5 * @author Harry Fuecks <hfuecks@gmail.com>
6 * @author Andreas Gohr <andi@splitbrain.org>
7 */
8if(!defined('DOKU_INC')) die('meh.');
9require_once DOKU_INC . 'inc/plugin.php';
10require_once DOKU_INC . 'inc/pluginutils.php';
11
12/**
13 * An empty renderer, produces no output
14 *
15 * Inherits from DokuWiki_Plugin for giving additional functions to render plugins
16 */
17class Doku_Renderer extends DokuWiki_Plugin {
18    var $info = array(
19        'cache' => true, // may the rendered result cached?
20        'toc'   => true, // render the TOC?
21    );
22
23    // keep some config options
24    var $acronyms = array();
25    var $smileys = array();
26    var $badwords = array();
27    var $entities = array();
28    var $interwiki = array();
29
30    // allows renderer to be used again, clean out any per-use values
31    function reset() {
32    }
33
34    function nocache() {
35        $this->info['cache'] = false;
36    }
37
38    function notoc() {
39        $this->info['toc'] = false;
40    }
41
42    /**
43     * Returns the format produced by this renderer.
44     *
45     * Has to be overidden by decendend classes
46     */
47    function getFormat(){
48        trigger_error('getFormat() not implemented in '.get_class($this), E_USER_WARNING);
49    }
50
51    /**
52     * Allow the plugin to prevent DokuWiki from reusing an instance
53     *
54     * @return bool   false if the plugin has to be instantiated
55     */
56    function isSingleton() {
57        return false;
58    }
59
60
61    //handle plugin rendering
62    function plugin($name,$data){
63        $plugin =& plugin_load('syntax',$name);
64        if($plugin != null){
65            $plugin->render($this->getFormat(),$this,$data);
66        }
67    }
68
69    /**
70     * handle nested render instructions
71     * this method (and nest_close method) should not be overloaded in actual renderer output classes
72     */
73    function nest($instructions) {
74
75      foreach ( $instructions as $instruction ) {
76        // execute the callback against ourself
77        if (method_exists($this,$instruction[0])) {
78          call_user_func_array(array($this, $instruction[0]),$instruction[1]);
79        }
80      }
81    }
82
83    // dummy closing instruction issued by Doku_Handler_Nest, normally the syntax mode should
84    // override this instruction when instantiating Doku_Handler_Nest - however plugins will not
85    // be able to - as their instructions require data.
86    function nest_close() {}
87
88    function document_start() {}
89
90    function document_end() {}
91
92    function render_TOC() { return ''; }
93
94    function toc_additem($id, $text, $level) {}
95
96    function header($text, $level, $pos) {}
97
98    function section_open($level) {}
99
100    function section_close() {}
101
102    function cdata($text) {}
103
104    function p_open() {}
105
106    function p_close() {}
107
108    function linebreak() {}
109
110    function hr() {}
111
112    function strong_open() {}
113
114    function strong_close() {}
115
116    function emphasis_open() {}
117
118    function emphasis_close() {}
119
120    function underline_open() {}
121
122    function underline_close() {}
123
124    function monospace_open() {}
125
126    function monospace_close() {}
127
128    function subscript_open() {}
129
130    function subscript_close() {}
131
132    function superscript_open() {}
133
134    function superscript_close() {}
135
136    function deleted_open() {}
137
138    function deleted_close() {}
139
140    function footnote_open() {}
141
142    function footnote_close() {}
143
144    function listu_open() {}
145
146    function listu_close() {}
147
148    function listo_open() {}
149
150    function listo_close() {}
151
152    function listitem_open($level) {}
153
154    function listitem_close() {}
155
156    function listcontent_open() {}
157
158    function listcontent_close() {}
159
160    function unformatted($text) {}
161
162    function php($text) {}
163
164    function phpblock($text) {}
165
166    function html($text) {}
167
168    function htmlblock($text) {}
169
170    function preformatted($text) {}
171
172    function quote_open() {}
173
174    function quote_close() {}
175
176    function file($text, $lang = null, $file = null ) {}
177
178    function code($text, $lang = null, $file = null ) {}
179
180    function acronym($acronym) {}
181
182    function smiley($smiley) {}
183
184    function wordblock($word) {}
185
186    function entity($entity) {}
187
188    // 640x480 ($x=640, $y=480)
189    function multiplyentity($x, $y) {}
190
191    function singlequoteopening() {}
192
193    function singlequoteclosing() {}
194
195    function apostrophe() {}
196
197    function doublequoteopening() {}
198
199    function doublequoteclosing() {}
200
201    // $link like 'SomePage'
202    function camelcaselink($link) {}
203
204    function locallink($hash, $name = NULL) {}
205
206    // $link like 'wiki:syntax', $title could be an array (media)
207    function internallink($link, $title = NULL) {}
208
209    // $link is full URL with scheme, $title could be an array (media)
210    function externallink($link, $title = NULL) {}
211
212    function rss ($url,$params) {}
213
214    // $link is the original link - probably not much use
215    // $wikiName is an indentifier for the wiki
216    // $wikiUri is the URL fragment to append to some known URL
217    function interwikilink($link, $title = NULL, $wikiName, $wikiUri) {}
218
219    // Link to file on users OS, $title could be an array (media)
220    function filelink($link, $title = NULL) {}
221
222    // Link to a Windows share, , $title could be an array (media)
223    function windowssharelink($link, $title = NULL) {}
224
225//  function email($address, $title = NULL) {}
226    function emaillink($address, $name = NULL) {}
227
228    function internalmedia ($src, $title=NULL, $align=NULL, $width=NULL,
229                            $height=NULL, $cache=NULL, $linking=NULL) {}
230
231    function externalmedia ($src, $title=NULL, $align=NULL, $width=NULL,
232                            $height=NULL, $cache=NULL, $linking=NULL) {}
233
234    function internalmedialink (
235        $src,$title=NULL,$align=NULL,$width=NULL,$height=NULL,$cache=NULL
236        ) {}
237
238    function externalmedialink(
239        $src,$title=NULL,$align=NULL,$width=NULL,$height=NULL,$cache=NULL
240        ) {}
241
242    function table_open($maxcols = null, $numrows = null, $pos = null){}
243
244    function table_close($pos = null){}
245
246    function tablerow_open(){}
247
248    function tablerow_close(){}
249
250    function tableheader_open($colspan = 1, $align = NULL, $rowspan = 1){}
251
252    function tableheader_close(){}
253
254    function tablecell_open($colspan = 1, $align = NULL, $rowspan = 1){}
255
256    function tablecell_close(){}
257
258
259    // util functions follow, you probably won't need to reimplement them
260
261
262    /**
263     * Removes any Namespace from the given name but keeps
264     * casing and special chars
265     *
266     * @author Andreas Gohr <andi@splitbrain.org>
267     */
268    function _simpleTitle($name){
269        global $conf;
270
271        //if there is a hash we use the ancor name only
272        list($name,$hash) = explode('#',$name,2);
273        if($hash) return $hash;
274
275        $name = strtr($name,';',':');
276        if($conf['useslash']){
277            $name = strtr($name,'/',':');
278        }
279
280        return noNSorNS($name);
281    }
282
283    /**
284     * Resolve an interwikilink
285     */
286    function _resolveInterWiki(&$shortcut,$reference){
287        //get interwiki URL
288        if ( isset($this->interwiki[$shortcut]) ) {
289            $url = $this->interwiki[$shortcut];
290        } else {
291            // Default to Google I'm feeling lucky
292            $url = 'http://www.google.com/search?q={URL}&amp;btnI=lucky';
293            $shortcut = 'go';
294        }
295
296        //split into hash and url part
297        list($reference,$hash) = explode('#',$reference,2);
298
299        //replace placeholder
300        if(preg_match('#\{(URL|NAME|SCHEME|HOST|PORT|PATH|QUERY)\}#',$url)){
301            //use placeholders
302            $url = str_replace('{URL}',rawurlencode($reference),$url);
303            $url = str_replace('{NAME}',$reference,$url);
304            $parsed = parse_url($reference);
305            if(!$parsed['port']) $parsed['port'] = 80;
306            $url = str_replace('{SCHEME}',$parsed['scheme'],$url);
307            $url = str_replace('{HOST}',$parsed['host'],$url);
308            $url = str_replace('{PORT}',$parsed['port'],$url);
309            $url = str_replace('{PATH}',$parsed['path'],$url);
310            $url = str_replace('{QUERY}',$parsed['query'],$url);
311        }else{
312            //default
313            $url = $url.rawurlencode($reference);
314        }
315        if($hash) $url .= '#'.rawurlencode($hash);
316
317        return $url;
318    }
319}
320
321
322//Setup VIM: ex: et ts=4 :
323