4 require_once 'lib/ErrorManager.php';
11 * name optionally of form "theme/template" to include parent templates in children
13 function Template ($name, &$request, $args = false) {
16 $this->_request =& $request;
17 $this->_basepage = $request->getArg('pagename');
19 if (strstr($name, "/")) {
20 $oldname = $WikiTheme->_name;
21 $oldtheme = $WikiTheme->_theme;
22 list($themename, $name) = explode("/", $name);
23 $WikiTheme->_theme = "themes/$themename";
24 $WikiTheme->_name = $name;
27 $file = $WikiTheme->findTemplate($name);
29 trigger_error("no template for $name found.", E_USER_WARNING);
32 if (isset($oldname)) {
33 $WikiTheme->_name = $oldname;
34 $WikiTheme->_theme = $oldtheme;
36 $fp = fopen($file, "rb");
38 trigger_error("$file not found", E_USER_WARNING);
41 $request->_TemplatesProcessed[$name] = 1;
42 $this->_tmpl = fread($fp, filesize($file));
44 //$userid = $request->_user->_userid;
46 $this->_locals = $args;
48 $this->_locals = array('CONTENT' => $args);
50 $this->_locals = array();
53 function _munge_input($template) {
55 // Convert < ?plugin expr ? > to < ?php $this->_printPluginPI("expr"); ? >
56 $orig[] = '/<\?plugin.*?\?>/se';
57 $repl[] = "\$this->_mungePlugin('\\0')";
59 // Convert < ?= expr ? > to < ?php $this->_print(expr); ? >
60 $orig[] = '/<\?=(.*?)\?>/s';
61 $repl[] = '<?php $this->_print(\1);?>';
63 // Convert < ?php echo expr ? > to < ?php $this->_print(expr); ? >
64 $orig[] = '/<\?php echo (.*?)\?>/s';
65 $repl[] = '<?php $this->_print(\1);?>';
67 return preg_replace($orig, $repl, $template);
70 function _mungePlugin($pi) {
71 // HACK ALERT: PHP's preg_replace, with the /e option seems to
72 // escape both single and double quotes with backslashes.
73 // So we need to unescape the double quotes here...
75 $pi = preg_replace('/(?!<\\\\)\\\\"/x', '"', $pi);
76 return sprintf('<?php $this->_printPlugin(%s); ?>',
77 "'" . str_replace("'", "\'", $pi) . "'");
80 function _printPlugin ($pi) {
81 include_once 'lib/WikiPlugin.php';
85 $loader = new WikiPluginLoader;
87 $this->_print($loader->expandPI($pi, $this->_request, $this, $this->_basepage));
90 function _print ($val) {
91 if (isa($val, 'Template')) {
92 $this->_expandSubtemplate($val);
98 function _expandSubtemplate (&$template) {
100 //if (!$template->_request)
101 // $template->_request = &$this->_request;
103 echo "<!-- Begin $template->_name -->\n";
105 // Expand sub-template with defaults from this template.
106 $template->printExpansion($this->_vars);
108 echo "<!-- End $template->_name -->\n";
113 * Substitute HTML replacement text for tokens in template.
115 * Constructs a new WikiTemplate based upon the named template.
119 * @param $token string Name of token to substitute for.
121 * @param $replacement string Replacement HTML text.
123 function replace($varname, $value) {
124 $this->_locals[$varname] = $value;
128 function printExpansion ($defaults = false) {
129 if (!is_array($defaults)) // HTML object or template object
130 $defaults = array('CONTENT' => $defaults);
131 $this->_vars = array_merge($defaults, $this->_locals);
132 extract($this->_vars);
136 $user = $request->getUser();
138 $page = $request->getPage();
139 // Speedup. I checked all templates
140 if (!isset($revision))
143 global $WikiTheme, $charset;
144 //$this->_dump_template();
145 $SEP = $WikiTheme->getButtonSeparator();
147 global $ErrorManager;
148 $ErrorManager->pushErrorHandler(new WikiMethodCb($this, '_errorHandler'));
150 eval('?>' . $this->_munge_input($this->_tmpl));
152 $ErrorManager->popErrorHandler();
156 // Find a way to do template expansion less memory intensive and faster.
157 // 1.3.4 needed no memory at all for dumphtml, now it needs +15MB.
158 // Smarty? As before?
159 function getExpansion ($defaults = false) {
161 $this->printExpansion($defaults);
162 $xml = ob_get_contents();
163 ob_end_clean(); // PHP problem: Doesn't release its memory?
167 function printXML () {
168 $this->printExpansion();
172 return $this->getExpansion();
177 function _dump_template () {
178 $lines = explode("\n", $this->_munge_input($this->_tmpl));
181 foreach ($lines as $line)
182 $pre->pushContent(fmt("%4d %s\n", $n++, $line));
186 function _errorHandler($error) {
187 //if (!preg_match('/: eval\(\)\'d code$/', $error->errfile))
190 if (preg_match('/: eval\(\)\'d code$/', $error->errfile)) {
191 $error->errfile = "In template '$this->_name'";
192 // Hack alert: Ignore 'undefined variable' messages for variables
193 // whose names are ALL_CAPS.
194 if (preg_match('/Undefined variable:\s*[_A-Z]+\s*$/', $error->errstr))
197 // ignore recursively nested htmldump loop: browse -> body -> htmldump -> browse -> body ...
198 // FIXME for other possible loops also
199 elseif (strstr($error->errfile, "In template 'htmldump'")) {
202 elseif (strstr($error->errfile, "In template '")) { // merge
203 $error->errfile = preg_replace("/'(\w+)'\)$/", "'\\1' < '$this->_name')",
207 $error->errfile .= " (In template '$this->_name')";
210 if (!empty($this->_tmpl)) {
211 $lines = explode("\n", $this->_tmpl);
212 if (isset($lines[$error->errline - 1]))
213 $error->errstr .= ":\n\t" . $lines[$error->errline - 1];
222 * This is a convenience function and is equivalent to:
227 function Template($name, $args = false) {
229 return new Template($name, $request, $args);
232 function alreadyTemplateProcessed($name) {
234 return !empty($request->_TemplatesProcessed[$name]) ? true : false;
237 * Make and expand the top-level template.
240 * @param $content mixed html content to put into the page
241 * @param $title string page title
242 * @param $page_revision object A WikiDB_PageRevision object or false
243 * @param $args hash Extract args for top-level template
245 * @return string HTML expansion of template.
247 function GeneratePage($content, $title, $page_revision = false, $args = false) {
250 if (!is_array($args))
253 $args['CONTENT'] = $content;
254 $args['TITLE'] = $title;
255 $args['revision'] = $page_revision;
257 if (!isset($args['HEADER']))
258 $args['HEADER'] = $title;
260 printXML(new Template('html', $request, $args));
265 * For dumping pages as html to a file.
266 * Used for action=dumphtml,action=ziphtml,format=pdf,format=xml
268 function GeneratePageasXML($content, $title, $page_revision = false, $args = false) {
271 if (!is_array($args))
274 $content->_basepage = $title;
275 $args['CONTENT'] = $content;
276 $args['TITLE'] = SplitPagename($title);
277 $args['revision'] = $page_revision;
279 if (!isset($args['HEADER']))
280 $args['HEADER'] = SplitPagename($title);
282 global $HIDE_TOOLBARS, $NO_BASEHREF, $WikiTheme;
283 $HIDE_TOOLBARS = true;
284 if (!$WikiTheme->DUMP_MODE)
285 $WikiTheme->DUMP_MODE = 'HTML';
287 // FIXME: unfatal errors and login requirements
288 $html = asXML(new Template('htmldump', $request, $args));
290 $HIDE_TOOLBARS = false;
291 //$WikiTheme->DUMP_MODE = false;
299 // c-hanging-comment-ender-p: nil
300 // indent-tabs-mode: nil