1 <?php
3 /**
4 * Project: Smarty: the PHP compiling template engine
5 * File: Smarty_Compiler.class.php
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 * @link http://smarty.php.net/
22 * @author Monte Ohrt <monte at ohrt dot com>
23 * @author Andrei Zmievski <andrei@php.net>
24 * @version 2.6.26
25 * @copyright 2001-2005 New Digital Group, Inc.
26 * @package Smarty
27 */
29 /* $Id: Smarty_Compiler.class.php 3163 2009-06-17 14:39:24Z monte.ohrt $ */
31 /**
32 * Template compiling class
33 * @package Smarty
34 */
35 class Smarty_Compiler extends Smarty {
37 // internal vars
38 /**#@+
39 * @access private
40 */
41 var $_folded_blocks = array(); // keeps folded template blocks
42 var $_current_file = null; // the current template being compiled
43 var $_current_line_no = 1; // line number for error messages
44 var $_capture_stack = array(); // keeps track of nested capture buffers
45 var $_plugin_info = array(); // keeps track of plugins to load
46 var $_init_smarty_vars = false;
47 var $_permitted_tokens = array('true','false','yes','no','on','off','null');
48 var $_db_qstr_regexp = null; // regexps are setup in the constructor
49 var $_si_qstr_regexp = null;
50 var $_qstr_regexp = null;
51 var $_func_regexp = null;
52 var $_reg_obj_regexp = null;
53 var $_var_bracket_regexp = null;
54 var $_num_const_regexp = null;
55 var $_dvar_guts_regexp = null;
56 var $_dvar_regexp = null;
57 var $_cvar_regexp = null;
58 var $_svar_regexp = null;
59 var $_avar_regexp = null;
60 var $_mod_regexp = null;
61 var $_var_regexp = null;
62 var $_parenth_param_regexp = null;
63 var $_func_call_regexp = null;
64 var $_obj_ext_regexp = null;
65 var $_obj_start_regexp = null;
66 var $_obj_params_regexp = null;
67 var $_obj_call_regexp = null;
68 var $_cacheable_state = 0;
69 var $_cache_attrs_count = 0;
70 var $_nocache_count = 0;
71 var $_cache_serial = null;
72 var $_cache_include = null;
74 var $_strip_depth = 0;
75 var $_additional_newline = "\n";
77 /**#@-*/
78 /**
79 * The class constructor.
80 */
81 function Smarty_Compiler()
82 {
83 // matches double quoted strings:
84 // "foobar"
85 // "foo\"bar"
86 $this->_db_qstr_regexp = '"[^"\\\\]*(?:\\\\.[^"\\\\]*)*"';
88 // matches single quoted strings:
89 // 'foobar'
90 // 'foo\'bar'
91 $this->_si_qstr_regexp = '\'[^\'\\\\]*(?:\\\\.[^\'\\\\]*)*\'';
93 // matches single or double quoted strings
94 $this->_qstr_regexp = '(?:' . $this->_db_qstr_regexp . '|' . $this->_si_qstr_regexp . ')';
96 // matches bracket portion of vars
97 // [0]
98 // [foo]
99 // [$bar]
100 $this->_var_bracket_regexp = '\[\$?[\w\.]+\]';
102 // matches numerical constants
103 // 30
104 // -12
105 // 13.22
106 $this->_num_const_regexp = '(?:\-?\d+(?:\.\d+)?)';
108 // matches $ vars (not objects):
109 // $foo
110 // $foo.bar
111 // $foo.bar.foobar
112 // $foo[0]
113 // $foo[$bar]
114 // $foo[5][blah]
115 // $foo[5].bar[$foobar][4]
116 $this->_dvar_math_regexp = '(?:[\+\*\/\%]|(?:-(?!>)))';
117 $this->_dvar_math_var_regexp = '[\$\w\.\+\-\*\/\%\d\>\[\]]';
118 $this->_dvar_guts_regexp = '\w+(?:' . $this->_var_bracket_regexp
119 . ')*(?:\.\$?\w+(?:' . $this->_var_bracket_regexp . ')*)*(?:' . $this->_dvar_math_regexp . '(?:' . $this->_num_const_regexp . '|' . $this->_dvar_math_var_regexp . ')*)?';
120 $this->_dvar_regexp = '\$' . $this->_dvar_guts_regexp;
122 // matches config vars:
123 // #foo#
124 // #foobar123_foo#
125 $this->_cvar_regexp = '\#\w+\#';
127 // matches section vars:
128 // %foo.bar%
129 $this->_svar_regexp = '\%\w+\.\w+\%';
131 // matches all valid variables (no quotes, no modifiers)
132 $this->_avar_regexp = '(?:' . $this->_dvar_regexp . '|'
133 . $this->_cvar_regexp . '|' . $this->_svar_regexp . ')';
135 // matches valid variable syntax:
136 // $foo
137 // $foo
138 // #foo#
139 // #foo#
140 // "text"
141 // "text"
142 $this->_var_regexp = '(?:' . $this->_avar_regexp . '|' . $this->_qstr_regexp . ')';
144 // matches valid object call (one level of object nesting allowed in parameters):
145 // $foo->bar
146 // $foo->bar()
147 // $foo->bar("text")
148 // $foo->bar($foo, $bar, "text")
149 // $foo->bar($foo, "foo")
150 // $foo->bar->foo()
151 // $foo->bar->foo->bar()
152 // $foo->bar($foo->bar)
153 // $foo->bar($foo->bar())
154 // $foo->bar($foo->bar($blah,$foo,44,"foo",$foo[0].bar))
155 $this->_obj_ext_regexp = '\->(?:\$?' . $this->_dvar_guts_regexp . ')';
156 $this->_obj_restricted_param_regexp = '(?:'
157 . '(?:' . $this->_var_regexp . '|' . $this->_num_const_regexp . ')(?:' . $this->_obj_ext_regexp . '(?:\((?:(?:' . $this->_var_regexp . '|' . $this->_num_const_regexp . ')'
158 . '(?:\s*,\s*(?:' . $this->_var_regexp . '|' . $this->_num_const_regexp . '))*)?\))?)*)';
159 $this->_obj_single_param_regexp = '(?:\w+|' . $this->_obj_restricted_param_regexp . '(?:\s*,\s*(?:(?:\w+|'
160 . $this->_var_regexp . $this->_obj_restricted_param_regexp . ')))*)';
161 $this->_obj_params_regexp = '\((?:' . $this->_obj_single_param_regexp
162 . '(?:\s*,\s*' . $this->_obj_single_param_regexp . ')*)?\)';
163 $this->_obj_start_regexp = '(?:' . $this->_dvar_regexp . '(?:' . $this->_obj_ext_regexp . ')+)';
164 $this->_obj_call_regexp = '(?:' . $this->_obj_start_regexp . '(?:' . $this->_obj_params_regexp . ')?(?:' . $this->_dvar_math_regexp . '(?:' . $this->_num_const_regexp . '|' . $this->_dvar_math_var_regexp . ')*)?)';
166 // matches valid modifier syntax:
167 // |foo
168 // |@foo
169 // |foo:"bar"
170 // |foo:$bar
171 // |foo:"bar":$foobar
172 // |foo|bar
173 // |foo:$foo->bar
174 $this->_mod_regexp = '(?:\|@?\w+(?::(?:\w+|' . $this->_num_const_regexp . '|'
175 . $this->_obj_call_regexp . '|' . $this->_avar_regexp . '|' . $this->_qstr_regexp .'))*)';
177 // matches valid function name:
178 // foo123
179 // _foo_bar
180 $this->_func_regexp = '[a-zA-Z_]\w*';
182 // matches valid registered object:
183 // foo->bar
184 $this->_reg_obj_regexp = '[a-zA-Z_]\w*->[a-zA-Z_]\w*';
186 // matches valid parameter values:
187 // true
188 // $foo
189 // $foo|bar
190 // #foo#
191 // #foo#|bar
192 // "text"
193 // "text"|bar
194 // $foo->bar
195 $this->_param_regexp = '(?:\s*(?:' . $this->_obj_call_regexp . '|'
196 . $this->_var_regexp . '|' . $this->_num_const_regexp . '|\w+)(?>' . $this->_mod_regexp . '*)\s*)';
198 // matches valid parenthesised function parameters:
199 //
200 // "text"
201 // $foo, $bar, "text"
202 // $foo|bar, "foo"|bar, $foo->bar($foo)|bar
203 $this->_parenth_param_regexp = '(?:\((?:\w+|'
204 . $this->_param_regexp . '(?:\s*,\s*(?:(?:\w+|'
205 . $this->_param_regexp . ')))*)?\))';
207 // matches valid function call:
208 // foo()
209 // foo_bar($foo)
210 // _foo_bar($foo,"bar")
211 // foo123($foo,$foo->bar(),"foo")
212 $this->_func_call_regexp = '(?:' . $this->_func_regexp . '\s*(?:'
213 . $this->_parenth_param_regexp . '))';
214 }
216 /**
217 * compile a resource
218 *
219 * sets $compiled_content to the compiled source
220 * @param string $resource_name
221 * @param string $source_content
222 * @param string $compiled_content
223 * @return true
224 */
225 function _compile_file($resource_name, $source_content, &$compiled_content)
226 {
228 if ($this->security) {
229 // do not allow php syntax to be executed unless specified
230 if ($this->php_handling == SMARTY_PHP_ALLOW &&
231 !$this->security_settings['PHP_HANDLING']) {
232 $this->php_handling = SMARTY_PHP_PASSTHRU;
233 }
234 }
236 $this->_load_filters();
238 $this->_current_file = $resource_name;
239 $this->_current_line_no = 1;
240 $ldq = preg_quote($this->left_delimiter, '~');
241 $rdq = preg_quote($this->right_delimiter, '~');
243 // run template source through prefilter functions
244 if (count($this->_plugins['prefilter']) > 0) {
245 foreach ($this->_plugins['prefilter'] as $filter_name => $prefilter) {
246 if ($prefilter === false) continue;
247 if ($prefilter[3] || is_callable($prefilter[0])) {
248 $source_content = call_user_func_array($prefilter[0],
249 array($source_content, &$this));
250 $this->_plugins['prefilter'][$filter_name][3] = true;
251 } else {
252 $this->_trigger_fatal_error("[plugin] prefilter '$filter_name' is not implemented");
253 }
254 }
255 }
257 /* fetch all special blocks */
258 $search = "~{$ldq}\*(.*?)\*{$rdq}|{$ldq}\s*literal\s*{$rdq}(.*?){$ldq}\s*/literal\s*{$rdq}|{$ldq}\s*php\s*{$rdq}(.*?){$ldq}\s*/php\s*{$rdq}~s";
260 preg_match_all($search, $source_content, $match, PREG_SET_ORDER);
261 $this->_folded_blocks = $match;
262 reset($this->_folded_blocks);
264 /* replace special blocks by "{php}" */
265 $source_content = preg_replace($search.'e', "'"
266 . $this->_quote_replace($this->left_delimiter) . 'php'
267 . "' . str_repeat(\"\n\", substr_count('\\0', \"\n\")) .'"
268 . $this->_quote_replace($this->right_delimiter)
269 . "'"
270 , $source_content);
272 /* Gather all template tags. */
273 preg_match_all("~{$ldq}\s*(.*?)\s*{$rdq}~s", $source_content, $_match);
274 $template_tags = $_match[1];
275 /* Split content by template tags to obtain non-template content. */
276 $text_blocks = preg_split("~{$ldq}.*?{$rdq}~s", $source_content);
278 /* loop through text blocks */
279 for ($curr_tb = 0, $for_max = count($text_blocks); $curr_tb < $for_max; $curr_tb++) {
280 /* match anything resembling php tags */
281 if (preg_match_all('~(<\?(?:\w+|=)?|\?>|language\s*=\s*[\"\']?\s*php\s*[\"\']?)~is', $text_blocks[$curr_tb], $sp_match)) {
282 /* replace tags with placeholders to prevent recursive replacements */
283 $sp_match[1] = array_unique($sp_match[1]);
284 usort($sp_match[1], '_smarty_sort_length');
285 for ($curr_sp = 0, $for_max2 = count($sp_match[1]); $curr_sp < $for_max2; $curr_sp++) {
286 $text_blocks[$curr_tb] = str_replace($sp_match[1][$curr_sp],'%%%SMARTYSP'.$curr_sp.'%%%',$text_blocks[$curr_tb]);
287 }
288 /* process each one */
289 for ($curr_sp = 0, $for_max2 = count($sp_match[1]); $curr_sp < $for_max2; $curr_sp++) {
290 if ($this->php_handling == SMARTY_PHP_PASSTHRU) {
291 /* echo php contents */
292 $text_blocks[$curr_tb] = str_replace('%%%SMARTYSP'.$curr_sp.'%%%', '<?php echo \''.str_replace("'", "\'", $sp_match[1][$curr_sp]).'\'; ?>'."\n", $text_blocks[$curr_tb]);
293 } else if ($this->php_handling == SMARTY_PHP_QUOTE) {
294 /* quote php tags */
295 $text_blocks[$curr_tb] = str_replace('%%%SMARTYSP'.$curr_sp.'%%%', htmlspecialchars($sp_match[1][$curr_sp]), $text_blocks[$curr_tb]);
296 } else if ($this->php_handling == SMARTY_PHP_REMOVE) {
297 /* remove php tags */
298 $text_blocks[$curr_tb] = str_replace('%%%SMARTYSP'.$curr_sp.'%%%', '', $text_blocks[$curr_tb]);
299 } else {
300 /* SMARTY_PHP_ALLOW, but echo non php starting tags */
301 $sp_match[1][$curr_sp] = preg_replace('~(<\?(?!php|=|$))~i', '<?php echo \'\\1\'?>'."\n", $sp_match[1][$curr_sp]);
302 $text_blocks[$curr_tb] = str_replace('%%%SMARTYSP'.$curr_sp.'%%%', $sp_match[1][$curr_sp], $text_blocks[$curr_tb]);
303 }
304 }
305 }
306 }
308 /* Compile the template tags into PHP code. */
309 $compiled_tags = array();
310 for ($i = 0, $for_max = count($template_tags); $i < $for_max; $i++) {
311 $this->_current_line_no += substr_count($text_blocks[$i], "\n");
312 $compiled_tags[] = $this->_compile_tag($template_tags[$i]);
313 $this->_current_line_no += substr_count($template_tags[$i], "\n");
314 }
315 if (count($this->_tag_stack)>0) {
316 list($_open_tag, $_line_no) = end($this->_tag_stack);
317 $this->_syntax_error("unclosed tag \{$_open_tag} (opened line $_line_no).", E_USER_ERROR, __FILE__, __LINE__);
318 return;
319 }
321 /* Reformat $text_blocks between 'strip' and '/strip' tags,
322 removing spaces, tabs and newlines. */
323 $strip = false;
324 for ($i = 0, $for_max = count($compiled_tags); $i < $for_max; $i++) {
325 if ($compiled_tags[$i] == '{strip}') {
326 $compiled_tags[$i] = '';
327 $strip = true;
328 /* remove leading whitespaces */
329 $text_blocks[$i + 1] = ltrim($text_blocks[$i + 1]);
330 }
331 if ($strip) {
332 /* strip all $text_blocks before the next '/strip' */
333 for ($j = $i + 1; $j < $for_max; $j++) {
334 /* remove leading and trailing whitespaces of each line */
335 $text_blocks[$j] = preg_replace('![\t ]*[\r\n]+[\t ]*!', '', $text_blocks[$j]);
336 if ($compiled_tags[$j] == '{/strip}') {
337 /* remove trailing whitespaces from the last text_block */
338 $text_blocks[$j] = rtrim($text_blocks[$j]);
339 }
340 $text_blocks[$j] = "<?php echo '" . strtr($text_blocks[$j], array("'"=>"\'", "\\"=>"\\\\")) . "'; ?>";
341 if ($compiled_tags[$j] == '{/strip}') {
342 $compiled_tags[$j] = "\n"; /* slurped by php, but necessary
343 if a newline is following the closing strip-tag */
344 $strip = false;
345 $i = $j;
346 break;
347 }
348 }
349 }
350 }
351 $compiled_content = '';
353 $tag_guard = '%%%SMARTYOTG' . md5(uniqid(rand(), true)) . '%%%';
355 /* Interleave the compiled contents and text blocks to get the final result. */
356 for ($i = 0, $for_max = count($compiled_tags); $i < $for_max; $i++) {
357 if ($compiled_tags[$i] == '') {
358 // tag result empty, remove first newline from following text block
359 $text_blocks[$i+1] = preg_replace('~^(\r\n|\r|\n)~', '', $text_blocks[$i+1]);
360 }
361 // replace legit PHP tags with placeholder
362 $text_blocks[$i] = str_replace('<?', $tag_guard, $text_blocks[$i]);
363 $compiled_tags[$i] = str_replace('<?', $tag_guard, $compiled_tags[$i]);
365 $compiled_content .= $text_blocks[$i] . $compiled_tags[$i];
366 }
367 $compiled_content .= str_replace('<?', $tag_guard, $text_blocks[$i]);
369 // escape php tags created by interleaving
370 $compiled_content = str_replace('<?', "<?php echo '<?' ?>\n", $compiled_content);
371 $compiled_content = preg_replace("~(?<!')language\s*=\s*[\"\']?\s*php\s*[\"\']?~", "<?php echo 'language=php' ?>\n", $compiled_content);
373 // recover legit tags
374 $compiled_content = str_replace($tag_guard, '<?', $compiled_content);
376 // remove \n from the end of the file, if any
377 if (strlen($compiled_content) && (substr($compiled_content, -1) == "\n") ) {
378 $compiled_content = substr($compiled_content, 0, -1);
379 }
381 if (!empty($this->_cache_serial)) {
382 $compiled_content = "<?php \$this->_cache_serials['".$this->_cache_include."'] = '".$this->_cache_serial."'; ?>" . $compiled_content;
383 }
385 // run compiled template through postfilter functions
386 if (count($this->_plugins['postfilter']) > 0) {
387 foreach ($this->_plugins['postfilter'] as $filter_name => $postfilter) {
388 if ($postfilter === false) continue;
389 if ($postfilter[3] || is_callable($postfilter[0])) {
390 $compiled_content = call_user_func_array($postfilter[0],
391 array($compiled_content, &$this));
392 $this->_plugins['postfilter'][$filter_name][3] = true;
393 } else {
394 $this->_trigger_fatal_error("Smarty plugin error: postfilter '$filter_name' is not implemented");
395 }
396 }
397 }
399 // put header at the top of the compiled template
400 $template_header = "<?php /* Smarty version ".$this->_version.", created on ".strftime("%Y-%m-%d %H:%M:%S")."\n";
401 $template_header .= " compiled from ".strtr(urlencode($resource_name), array('%2F'=>'/', '%3A'=>':'))." */ ?>\n";
403 /* Emit code to load needed plugins. */
404 $this->_plugins_code = '';
405 if (count($this->_plugin_info)) {
406 $_plugins_params = "array('plugins' => array(";
407 foreach ($this->_plugin_info as $plugin_type => $plugins) {
408 foreach ($plugins as $plugin_name => $plugin_info) {
409 $_plugins_params .= "array('$plugin_type', '$plugin_name', '" . strtr($plugin_info[0], array("'" => "\\'", "\\" => "\\\\")) . "', $plugin_info[1], ";
410 $_plugins_params .= $plugin_info[2] ? 'true),' : 'false),';
411 }
412 }
413 $_plugins_params .= '))';
414 $plugins_code = "<?php require_once(SMARTY_CORE_DIR . 'core.load_plugins.php');\nsmarty_core_load_plugins($_plugins_params, \$this); ?>\n";
415 $template_header .= $plugins_code;
416 $this->_plugin_info = array();
417 $this->_plugins_code = $plugins_code;
418 }
420 if ($this->_init_smarty_vars) {
421 $template_header .= "<?php require_once(SMARTY_CORE_DIR . 'core.assign_smarty_interface.php');\nsmarty_core_assign_smarty_interface(null, \$this); ?>\n";
422 $this->_init_smarty_vars = false;
423 }
425 $compiled_content = $template_header . $compiled_content;
426 return true;
427 }
429 /**
430 * Compile a template tag
431 *
432 * @param string $template_tag
433 * @return string
434 */
435 function _compile_tag($template_tag)
436 {
437 /* Matched comment. */
438 if (substr($template_tag, 0, 1) == '*' && substr($template_tag, -1) == '*')
439 return '';
441 /* Split tag into two three parts: command, command modifiers and the arguments. */
442 if(! preg_match('~^(?:(' . $this->_num_const_regexp . '|' . $this->_obj_call_regexp . '|' . $this->_var_regexp
443 . '|\/?' . $this->_reg_obj_regexp . '|\/?' . $this->_func_regexp . ')(' . $this->_mod_regexp . '*))
444 (?:\s+(.*))?$
445 ~xs', $template_tag, $match)) {
446 $this->_syntax_error("unrecognized tag: $template_tag", E_USER_ERROR, __FILE__, __LINE__);
447 }
449 $tag_command = $match[1];
450 $tag_modifier = isset($match[2]) ? $match[2] : null;
451 $tag_args = isset($match[3]) ? $match[3] : null;
453 if (preg_match('~^' . $this->_num_const_regexp . '|' . $this->_obj_call_regexp . '|' . $this->_var_regexp . '$~', $tag_command)) {
454 /* tag name is a variable or object */
455 $_return = $this->_parse_var_props($tag_command . $tag_modifier);
456 return "<?php echo $_return; ?>" . $this->_additional_newline;
457 }
459 /* If the tag name is a registered object, we process it. */
460 if (preg_match('~^\/?' . $this->_reg_obj_regexp . '$~', $tag_command)) {
461 return $this->_compile_registered_object_tag($tag_command, $this->_parse_attrs($tag_args), $tag_modifier);
462 }
464 switch ($tag_command) {
465 case 'include':
466 return $this->_compile_include_tag($tag_args);
468 case 'include_php':
469 return $this->_compile_include_php_tag($tag_args);
471 case 'if':
472 $this->_push_tag('if');
473 return $this->_compile_if_tag($tag_args);
475 case 'else':
476 list($_open_tag) = end($this->_tag_stack);
477 if ($_open_tag != 'if' && $_open_tag != 'elseif')
478 $this->_syntax_error('unexpected {else}', E_USER_ERROR, __FILE__, __LINE__);
479 else
480 $this->_push_tag('else');
481 return '<?php else: ?>';
483 case 'elseif':
484 list($_open_tag) = end($this->_tag_stack);
485 if ($_open_tag != 'if' && $_open_tag != 'elseif')
486 $this->_syntax_error('unexpected {elseif}', E_USER_ERROR, __FILE__, __LINE__);
487 if ($_open_tag == 'if')
488 $this->_push_tag('elseif');
489 return $this->_compile_if_tag($tag_args, true);
491 case '/if':
492 $this->_pop_tag('if');
493 return '<?php endif; ?>';
495 case 'capture':
496 return $this->_compile_capture_tag(true, $tag_args);
498 case '/capture':
499 return $this->_compile_capture_tag(false);
501 case 'ldelim':
502 return $this->left_delimiter;
504 case 'rdelim':
505 return $this->right_delimiter;
507 case 'section':
508 $this->_push_tag('section');
509 return $this->_compile_section_start($tag_args);
511 case 'sectionelse':
512 $this->_push_tag('sectionelse');
513 return "<?php endfor; else: ?>";
514 break;
516 case '/section':
517 $_open_tag = $this->_pop_tag('section');
518 if ($_open_tag == 'sectionelse')
519 return "<?php endif; ?>";
520 else
521 return "<?php endfor; endif; ?>";
523 case 'foreach':
524 $this->_push_tag('foreach');
525 return $this->_compile_foreach_start($tag_args);
526 break;
528 case 'foreachelse':
529 $this->_push_tag('foreachelse');
530 return "<?php endforeach; else: ?>";
532 case '/foreach':
533 $_open_tag = $this->_pop_tag('foreach');
534 if ($_open_tag == 'foreachelse')
535 return "<?php endif; unset(\$_from); ?>";
536 else
537 return "<?php endforeach; endif; unset(\$_from); ?>";
538 break;
540 case 'strip':
541 case '/strip':
542 if (substr($tag_command, 0, 1)=='/') {
543 $this->_pop_tag('strip');
544 if (--$this->_strip_depth==0) { /* outermost closing {/strip} */
545 $this->_additional_newline = "\n";
546 return '{' . $tag_command . '}';
547 }
548 } else {
549 $this->_push_tag('strip');
550 if ($this->_strip_depth++==0) { /* outermost opening {strip} */
551 $this->_additional_newline = "";
552 return '{' . $tag_command . '}';
553 }
554 }
555 return '';
557 case 'php':
558 /* handle folded tags replaced by {php} */
559 list(, $block) = each($this->_folded_blocks);
560 $this->_current_line_no += substr_count($block[0], "\n");
561 /* the number of matched elements in the regexp in _compile_file()
562 determins the type of folded tag that was found */
563 switch (count($block)) {
564 case 2: /* comment */
565 return '';
567 case 3: /* literal */
568 return "<?php echo '" . strtr($block[2], array("'"=>"\'", "\\"=>"\\\\")) . "'; ?>" . $this->_additional_newline;
570 case 4: /* php */
571 if ($this->security && !$this->security_settings['PHP_TAGS']) {
572 $this->_syntax_error("(secure mode) php tags not permitted", E_USER_WARNING, __FILE__, __LINE__);
573 return;
574 }
575 return '<?php ' . $block[3] .' ?>';
576 }
577 break;
579 case 'insert':
580 return $this->_compile_insert_tag($tag_args);
582 default:
583 if ($this->_compile_compiler_tag($tag_command, $tag_args, $output)) {
584 return $output;
585 } else if ($this->_compile_block_tag($tag_command, $tag_args, $tag_modifier, $output)) {
586 return $output;
587 } else if ($this->_compile_custom_tag($tag_command, $tag_args, $tag_modifier, $output)) {
588 return $output;
589 } else {
590 $this->_syntax_error("unrecognized tag '$tag_command'", E_USER_ERROR, __FILE__, __LINE__);
591 }
593 }
594 }
597 /**
598 * compile the custom compiler tag
599 *
600 * sets $output to the compiled custom compiler tag
601 * @param string $tag_command
602 * @param string $tag_args
603 * @param string $output
604 * @return boolean
605 */
606 function _compile_compiler_tag($tag_command, $tag_args, &$output)
607 {
608 $found = false;
609 $have_function = true;
611 /*
612 * First we check if the compiler function has already been registered
613 * or loaded from a plugin file.
614 */
615 if (isset($this->_plugins['compiler'][$tag_command])) {
616 $found = true;
617 $plugin_func = $this->_plugins['compiler'][$tag_command][0];
618 if (!is_callable($plugin_func)) {
619 $message = "compiler function '$tag_command' is not implemented";
620 $have_function = false;
621 }
622 }
623 /*
624 * Otherwise we need to load plugin file and look for the function
625 * inside it.
626 */
627 else if ($plugin_file = $this->_get_plugin_filepath('compiler', $tag_command)) {
628 $found = true;
630 include_once $plugin_file;
632 $plugin_func = 'smarty_compiler_' . $tag_command;
633 if (!is_callable($plugin_func)) {
634 $message = "plugin function $plugin_func() not found in $plugin_file\n";
635 $have_function = false;
636 } else {
637 $this->_plugins['compiler'][$tag_command] = array($plugin_func, null, null, null, true);
638 }
639 }
641 /*
642 * True return value means that we either found a plugin or a
643 * dynamically registered function. False means that we didn't and the
644 * compiler should now emit code to load custom function plugin for this
645 * tag.
646 */
647 if ($found) {
648 if ($have_function) {
649 $output = call_user_func_array($plugin_func, array($tag_args, &$this));
650 if($output != '') {
651 $output = '<?php ' . $this->_push_cacheable_state('compiler', $tag_command)
652 . $output
653 . $this->_pop_cacheable_state('compiler', $tag_command) . ' ?>';
654 }
655 } else {
656 $this->_syntax_error($message, E_USER_WARNING, __FILE__, __LINE__);
657 }
658 return true;
659 } else {
660 return false;
661 }
662 }
665 /**
666 * compile block function tag
667 *
668 * sets $output to compiled block function tag
669 * @param string $tag_command
670 * @param string $tag_args
671 * @param string $tag_modifier
672 * @param string $output
673 * @return boolean
674 */
675 function _compile_block_tag($tag_command, $tag_args, $tag_modifier, &$output)
676 {
677 if (substr($tag_command, 0, 1) == '/') {
678 $start_tag = false;
679 $tag_command = substr($tag_command, 1);
680 } else
681 $start_tag = true;
683 $found = false;
684 $have_function = true;
686 /*
687 * First we check if the block function has already been registered
688 * or loaded from a plugin file.
689 */
690 if (isset($this->_plugins['block'][$tag_command])) {
691 $found = true;
692 $plugin_func = $this->_plugins['block'][$tag_command][0];
693 if (!is_callable($plugin_func)) {
694 $message = "block function '$tag_command' is not implemented";
695 $have_function = false;
696 }
697 }
698 /*
699 * Otherwise we need to load plugin file and look for the function
700 * inside it.
701 */
702 else if ($plugin_file = $this->_get_plugin_filepath('block', $tag_command)) {
703 $found = true;
705 include_once $plugin_file;
707 $plugin_func = 'smarty_block_' . $tag_command;
708 if (!function_exists($plugin_func)) {
709 $message = "plugin function $plugin_func() not found in $plugin_file\n";
710 $have_function = false;
711 } else {
712 $this->_plugins['block'][$tag_command] = array($plugin_func, null, null, null, true);
714 }
715 }
717 if (!$found) {
718 return false;
719 } else if (!$have_function) {
720 $this->_syntax_error($message, E_USER_WARNING, __FILE__, __LINE__);
721 return true;
722 }
724 /*
725 * Even though we've located the plugin function, compilation
726 * happens only once, so the plugin will still need to be loaded
727 * at runtime for future requests.
728 */
729 $this->_add_plugin('block', $tag_command);
731 if ($start_tag)
732 $this->_push_tag($tag_command);
733 else
734 $this->_pop_tag($tag_command);
736 if ($start_tag) {
737 $output = '<?php ' . $this->_push_cacheable_state('block', $tag_command);
738 $attrs = $this->_parse_attrs($tag_args);
739 $_cache_attrs='';
740 $arg_list = $this->_compile_arg_list('block', $tag_command, $attrs, $_cache_attrs);
741 $output .= "$_cache_attrs\$this->_tag_stack[] = array('$tag_command', array(".implode(',', $arg_list).')); ';
742 $output .= '$_block_repeat=true;' . $this->_compile_plugin_call('block', $tag_command).'($this->_tag_stack[count($this->_tag_stack)-1][1], null, $this, $_block_repeat);';
743 $output .= 'while ($_block_repeat) { ob_start(); ?>';
744 } else {
745 $output = '<?php $_block_content = ob_get_contents(); ob_end_clean(); ';
746 $_out_tag_text = $this->_compile_plugin_call('block', $tag_command).'($this->_tag_stack[count($this->_tag_stack)-1][1], $_block_content, $this, $_block_repeat)';
747 if ($tag_modifier != '') {
748 $this->_parse_modifiers($_out_tag_text, $tag_modifier);
749 }
750 $output .= '$_block_repeat=false;echo ' . $_out_tag_text . '; } ';
751 $output .= " array_pop(\$this->_tag_stack); " . $this->_pop_cacheable_state('block', $tag_command) . '?>';
752 }
754 return true;
755 }
758 /**
759 * compile custom function tag
760 *
761 * @param string $tag_command
762 * @param string $tag_args
763 * @param string $tag_modifier
764 * @return string
765 */
766 function _compile_custom_tag($tag_command, $tag_args, $tag_modifier, &$output)
767 {
768 $found = false;
769 $have_function = true;
771 /*
772 * First we check if the custom function has already been registered
773 * or loaded from a plugin file.
774 */
775 if (isset($this->_plugins['function'][$tag_command])) {
776 $found = true;
777 $plugin_func = $this->_plugins['function'][$tag_command][0];
778 if (!is_callable($plugin_func)) {
779 $message = "custom function '$tag_command' is not implemented";
780 $have_function = false;
781 }
782 }
783 /*
784 * Otherwise we need to load plugin file and look for the function
785 * inside it.
786 */
787 else if ($plugin_file = $this->_get_plugin_filepath('function', $tag_command)) {
788 $found = true;
790 include_once $plugin_file;
792 $plugin_func = 'smarty_function_' . $tag_command;
793 if (!function_exists($plugin_func)) {
794 $message = "plugin function $plugin_func() not found in $plugin_file\n";
795 $have_function = false;
796 } else {
797 $this->_plugins['function'][$tag_command] = array($plugin_func, null, null, null, true);
799 }
800 }
802 if (!$found) {
803 return false;
804 } else if (!$have_function) {
805 $this->_syntax_error($message, E_USER_WARNING, __FILE__, __LINE__);
806 return true;
807 }
809 /* declare plugin to be loaded on display of the template that
810 we compile right now */
811 $this->_add_plugin('function', $tag_command);
813 $_cacheable_state = $this->_push_cacheable_state('function', $tag_command);
814 $attrs = $this->_parse_attrs($tag_args);
815 $_cache_attrs = '';
816 $arg_list = $this->_compile_arg_list('function', $tag_command, $attrs, $_cache_attrs);
818 $output = $this->_compile_plugin_call('function', $tag_command).'(array('.implode(',', $arg_list)."), \$this)";
819 if($tag_modifier != '') {
820 $this->_parse_modifiers($output, $tag_modifier);
821 }
823 if($output != '') {
824 $output = '<?php ' . $_cacheable_state . $_cache_attrs . 'echo ' . $output . ';'
825 . $this->_pop_cacheable_state('function', $tag_command) . "?>" . $this->_additional_newline;
826 }
828 return true;
829 }
831 /**
832 * compile a registered object tag
833 *
834 * @param string $tag_command
835 * @param array $attrs
836 * @param string $tag_modifier
837 * @return string
838 */
839 function _compile_registered_object_tag($tag_command, $attrs, $tag_modifier)
840 {
841 if (substr($tag_command, 0, 1) == '/') {
842 $start_tag = false;
843 $tag_command = substr($tag_command, 1);
844 } else {
845 $start_tag = true;
846 }
848 list($object, $obj_comp) = explode('->', $tag_command);
850 $arg_list = array();
851 if(count($attrs)) {
852 $_assign_var = false;
853 foreach ($attrs as $arg_name => $arg_value) {
854 if($arg_name == 'assign') {
855 $_assign_var = $arg_value;
856 unset($attrs['assign']);
857 continue;
858 }
859 if (is_bool($arg_value))
860 $arg_value = $arg_value ? 'true' : 'false';
861 $arg_list[] = "'$arg_name' => $arg_value";
862 }
863 }
865 if($this->_reg_objects[$object][2]) {
866 // smarty object argument format
867 $args = "array(".implode(',', (array)$arg_list)."), \$this";
868 } else {
869 // traditional argument format
870 $args = implode(',', array_values($attrs));
871 if (empty($args)) {
872 $args = '';
873 }
874 }
876 $prefix = '';
877 $postfix = '';
878 $newline = '';
879 if(!is_object($this->_reg_objects[$object][0])) {
880 $this->_trigger_fatal_error("registered '$object' is not an object" , $this->_current_file, $this->_current_line_no, __FILE__, __LINE__);
881 } elseif(!empty($this->_reg_objects[$object][1]) && !in_array($obj_comp, $this->_reg_objects[$object][1])) {
882 $this->_trigger_fatal_error("'$obj_comp' is not a registered component of object '$object'", $this->_current_file, $this->_current_line_no, __FILE__, __LINE__);
883 } elseif(method_exists($this->_reg_objects[$object][0], $obj_comp)) {
884 // method
885 if(in_array($obj_comp, $this->_reg_objects[$object][3])) {
886 // block method
887 if ($start_tag) {
888 $prefix = "\$this->_tag_stack[] = array('$obj_comp', $args); ";
889 $prefix .= "\$_block_repeat=true; \$this->_reg_objects['$object'][0]->$obj_comp(\$this->_tag_stack[count(\$this->_tag_stack)-1][1], null, \$this, \$_block_repeat); ";
890 $prefix .= "while (\$_block_repeat) { ob_start();";
891 $return = null;
892 $postfix = '';
893 } else {
894 $prefix = "\$_obj_block_content = ob_get_contents(); ob_end_clean(); \$_block_repeat=false;";
895 $return = "\$this->_reg_objects['$object'][0]->$obj_comp(\$this->_tag_stack[count(\$this->_tag_stack)-1][1], \$_obj_block_content, \$this, \$_block_repeat)";
896 $postfix = "} array_pop(\$this->_tag_stack);";
897 }
898 } else {
899 // non-block method
900 $return = "\$this->_reg_objects['$object'][0]->$obj_comp($args)";
901 }
902 } else {
903 // property
904 $return = "\$this->_reg_objects['$object'][0]->$obj_comp";
905 }
907 if($return != null) {
908 if($tag_modifier != '') {
909 $this->_parse_modifiers($return, $tag_modifier);
910 }
912 if(!empty($_assign_var)) {
913 $output = "\$this->assign('" . $this->_dequote($_assign_var) ."', $return);";
914 } else {
915 $output = 'echo ' . $return . ';';
916 $newline = $this->_additional_newline;
917 }
918 } else {
919 $output = '';
920 }
922 return '<?php ' . $prefix . $output . $postfix . "?>" . $newline;
923 }
925 /**
926 * Compile {insert ...} tag
927 *
928 * @param string $tag_args
929 * @return string
930 */
931 function _compile_insert_tag($tag_args)
932 {
933 $attrs = $this->_parse_attrs($tag_args);
934 $name = $this->_dequote($attrs['name']);
936 if (empty($name)) {
937 return $this->_syntax_error("missing insert name", E_USER_ERROR, __FILE__, __LINE__);
938 }
940 if (!preg_match('~^\w+$~', $name)) {
941 return $this->_syntax_error("'insert: 'name' must be an insert function name", E_USER_ERROR, __FILE__, __LINE__);
942 }
944 if (!empty($attrs['script'])) {
945 $delayed_loading = true;
946 } else {
947 $delayed_loading = false;
948 }
950 foreach ($attrs as $arg_name => $arg_value) {
951 if (is_bool($arg_value))
952 $arg_value = $arg_value ? 'true' : 'false';
953 $arg_list[] = "'$arg_name' => $arg_value";
954 }
956 $this->_add_plugin('insert', $name, $delayed_loading);
958 $_params = "array('args' => array(".implode(', ', (array)$arg_list)."))";
960 return "<?php require_once(SMARTY_CORE_DIR . 'core.run_insert_handler.php');\necho smarty_core_run_insert_handler($_params, \$this); ?>" . $this->_additional_newline;
961 }
963 /**
964 * Compile {include ...} tag
965 *
966 * @param string $tag_args
967 * @return string
968 */
969 function _compile_include_tag($tag_args)
970 {
971 $attrs = $this->_parse_attrs($tag_args);
972 $arg_list = array();
974 if (empty($attrs['file'])) {
975 $this->_syntax_error("missing 'file' attribute in include tag", E_USER_ERROR, __FILE__, __LINE__);
976 }
978 foreach ($attrs as $arg_name => $arg_value) {
979 if ($arg_name == 'file') {
980 $include_file = $arg_value;
981 continue;
982 } else if ($arg_name == 'assign') {
983 $assign_var = $arg_value;
984 continue;
985 }
986 if (is_bool($arg_value))
987 $arg_value = $arg_value ? 'true' : 'false';
988 $arg_list[] = "'$arg_name' => $arg_value";
989 }
991 $output = '<?php ';
993 if (isset($assign_var)) {
994 $output .= "ob_start();\n";
995 }
997 $output .=
998 "\$_smarty_tpl_vars = \$this->_tpl_vars;\n";
1001 $_params = "array('smarty_include_tpl_file' => " . $include_file . ", 'smarty_include_vars' => array(".implode(',', (array)$arg_list)."))";
1002 $output .= "\$this->_smarty_include($_params);\n" .
1003 "\$this->_tpl_vars = \$_smarty_tpl_vars;\n" .
1004 "unset(\$_smarty_tpl_vars);\n";
1006 if (isset($assign_var)) {
1007 $output .= "\$this->assign(" . $assign_var . ", ob_get_contents()); ob_end_clean();\n";
1008 }
1010 $output .= ' ?>';
1012 return $output;
1014 }
1016 /**
1017 * Compile {include ...} tag
1018 *
1019 * @param string $tag_args
1020 * @return string
1021 */
1022 function _compile_include_php_tag($tag_args)
1023 {
1024 $attrs = $this->_parse_attrs($tag_args);
1026 if (empty($attrs['file'])) {
1027 $this->_syntax_error("missing 'file' attribute in include_php tag", E_USER_ERROR, __FILE__, __LINE__);
1028 }
1030 $assign_var = (empty($attrs['assign'])) ? '' : $this->_dequote($attrs['assign']);
1031 $once_var = (empty($attrs['once']) || $attrs['once']=='false') ? 'false' : 'true';
1033 $arg_list = array();
1034 foreach($attrs as $arg_name => $arg_value) {
1035 if($arg_name != 'file' AND $arg_name != 'once' AND $arg_name != 'assign') {
1036 if(is_bool($arg_value))
1037 $arg_value = $arg_value ? 'true' : 'false';
1038 $arg_list[] = "'$arg_name' => $arg_value";
1039 }
1040 }
1042 $_params = "array('smarty_file' => " . $attrs['file'] . ", 'smarty_assign' => '$assign_var', 'smarty_once' => $once_var, 'smarty_include_vars' => array(".implode(',', $arg_list)."))";
1044 return "<?php require_once(SMARTY_CORE_DIR . 'core.smarty_include_php.php');\nsmarty_core_smarty_include_php($_params, \$this); ?>" . $this->_additional_newline;
1045 }
1048 /**
1049 * Compile {section ...} tag
1050 *
1051 * @param string $tag_args
1052 * @return string
1053 */
1054 function _compile_section_start($tag_args)
1055 {
1056 $attrs = $this->_parse_attrs($tag_args);
1057 $arg_list = array();
1059 $output = '<?php ';
1060 $section_name = $attrs['name'];
1061 if (empty($section_name)) {
1062 $this->_syntax_error("missing section name", E_USER_ERROR, __FILE__, __LINE__);
1063 }
1065 $output .= "unset(\$this->_sections[$section_name]);\n";
1066 $section_props = "\$this->_sections[$section_name]";
1068 foreach ($attrs as $attr_name => $attr_value) {
1069 switch ($attr_name) {
1070 case 'loop':
1071 $output .= "{$section_props}['loop'] = is_array(\$_loop=$attr_value) ? count(\$_loop) : max(0, (int)\$_loop); unset(\$_loop);\n";
1072 break;
1074 case 'show':
1075 if (is_bool($attr_value))
1076 $show_attr_value = $attr_value ? 'true' : 'false';
1077 else
1078 $show_attr_value = "(bool)$attr_value";
1079 $output .= "{$section_props}['show'] = $show_attr_value;\n";
1080 break;
1082 case 'name':
1083 $output .= "{$section_props}['$attr_name'] = $attr_value;\n";
1084 break;
1086 case 'max':
1087 case 'start':
1088 $output .= "{$section_props}['$attr_name'] = (int)$attr_value;\n";
1089 break;
1091 case 'step':
1092 $output .= "{$section_props}['$attr_name'] = ((int)$attr_value) == 0 ? 1 : (int)$attr_value;\n";
1093 break;
1095 default:
1096 $this->_syntax_error("unknown section attribute - '$attr_name'", E_USER_ERROR, __FILE__, __LINE__);
1097 break;
1098 }
1099 }
1101 if (!isset($attrs['show']))
1102 $output .= "{$section_props}['show'] = true;\n";
1104 if (!isset($attrs['loop']))
1105 $output .= "{$section_props}['loop'] = 1;\n";
1107 if (!isset($attrs['max']))
1108 $output .= "{$section_props}['max'] = {$section_props}['loop'];\n";
1109 else
1110 $output .= "if ({$section_props}['max'] < 0)\n" .
1111 " {$section_props}['max'] = {$section_props}['loop'];\n";
1113 if (!isset($attrs['step']))
1114 $output .= "{$section_props}['step'] = 1;\n";
1116 if (!isset($attrs['start']))
1117 $output .= "{$section_props}['start'] = {$section_props}['step'] > 0 ? 0 : {$section_props}['loop']-1;\n";
1118 else {
1119 $output .= "if ({$section_props}['start'] < 0)\n" .
1120 " {$section_props}['start'] = max({$section_props}['step'] > 0 ? 0 : -1, {$section_props}['loop'] + {$section_props}['start']);\n" .
1121 "else\n" .
1122 " {$section_props}['start'] = min({$section_props}['start'], {$section_props}['step'] > 0 ? {$section_props}['loop'] : {$section_props}['loop']-1);\n";
1123 }
1125 $output .= "if ({$section_props}['show']) {\n";
1126 if (!isset($attrs['start']) && !isset($attrs['step']) && !isset($attrs['max'])) {
1127 $output .= " {$section_props}['total'] = {$section_props}['loop'];\n";
1128 } else {
1129 $output .= " {$section_props}['total'] = min(ceil(({$section_props}['step'] > 0 ? {$section_props}['loop'] - {$section_props}['start'] : {$section_props}['start']+1)/abs({$section_props}['step'])), {$section_props}['max']);\n";
1130 }
1131 $output .= " if ({$section_props}['total'] == 0)\n" .
1132 " {$section_props}['show'] = false;\n" .
1133 "} else\n" .
1134 " {$section_props}['total'] = 0;\n";
1136 $output .= "if ({$section_props}['show']):\n";
1137 $output .= "
1138 for ({$section_props}['index'] = {$section_props}['start'], {$section_props}['iteration'] = 1;
1139 {$section_props}['iteration'] <= {$section_props}['total'];
1140 {$section_props}['index'] += {$section_props}['step'], {$section_props}['iteration']++):\n";
1141 $output .= "{$section_props}['rownum'] = {$section_props}['iteration'];\n";
1142 $output .= "{$section_props}['index_prev'] = {$section_props}['index'] - {$section_props}['step'];\n";
1143 $output .= "{$section_props}['index_next'] = {$section_props}['index'] + {$section_props}['step'];\n";
1144 $output .= "{$section_props}['first'] = ({$section_props}['iteration'] == 1);\n";
1145 $output .= "{$section_props}['last'] = ({$section_props}['iteration'] == {$section_props}['total']);\n";
1147 $output .= "?>";
1149 return $output;
1150 }
1153 /**
1154 * Compile {foreach ...} tag.
1155 *
1156 * @param string $tag_args
1157 * @return string
1158 */
1159 function _compile_foreach_start($tag_args)
1160 {
1161 $attrs = $this->_parse_attrs($tag_args);
1162 $arg_list = array();
1164 if (empty($attrs['from'])) {
1165 return $this->_syntax_error("foreach: missing 'from' attribute", E_USER_ERROR, __FILE__, __LINE__);
1166 }
1167 $from = $attrs['from'];
1169 if (empty($attrs['item'])) {
1170 return $this->_syntax_error("foreach: missing 'item' attribute", E_USER_ERROR, __FILE__, __LINE__);
1171 }
1172 $item = $this->_dequote($attrs['item']);
1173 if (!preg_match('~^\w+$~', $item)) {
1174 return $this->_syntax_error("foreach: 'item' must be a variable name (literal string)", E_USER_ERROR, __FILE__, __LINE__);
1175 }
1177 if (isset($attrs['key'])) {
1178 $key = $this->_dequote($attrs['key']);
1179 if (!preg_match('~^\w+$~', $key)) {
1180 return $this->_syntax_error("foreach: 'key' must to be a variable name (literal string)", E_USER_ERROR, __FILE__, __LINE__);
1181 }
1182 $key_part = "\$this->_tpl_vars['$key'] => ";
1183 } else {
1184 $key = null;
1185 $key_part = '';
1186 }
1188 if (isset($attrs['name'])) {
1189 $name = $attrs['name'];
1190 } else {
1191 $name = null;
1192 }
1194 $output = '<?php ';
1195 $output .= "\$_from = $from; if (!is_array(\$_from) && !is_object(\$_from)) { settype(\$_from, 'array'); }";
1196 if (isset($name)) {
1197 $foreach_props = "\$this->_foreach[$name]";
1198 $output .= "{$foreach_props} = array('total' => count(\$_from), 'iteration' => 0);\n";
1199 $output .= "if ({$foreach_props}['total'] > 0):\n";
1200 $output .= " foreach (\$_from as $key_part\$this->_tpl_vars['$item']):\n";
1201 $output .= " {$foreach_props}['iteration']++;\n";
1202 } else {
1203 $output .= "if (count(\$_from)):\n";
1204 $output .= " foreach (\$_from as $key_part\$this->_tpl_vars['$item']):\n";
1205 }
1206 $output .= '?>';
1208 return $output;
1209 }
1212 /**
1213 * Compile {capture} .. {/capture} tags
1214 *
1215 * @param boolean $start true if this is the {capture} tag
1216 * @param string $tag_args
1217 * @return string
1218 */
1220 function _compile_capture_tag($start, $tag_args = '')
1221 {
1222 $attrs = $this->_parse_attrs($tag_args);
1224 if ($start) {
1225 $buffer = isset($attrs['name']) ? $attrs['name'] : "'default'";
1226 $assign = isset($attrs['assign']) ? $attrs['assign'] : null;
1227 $append = isset($attrs['append']) ? $attrs['append'] : null;
1229 $output = "<?php ob_start(); ?>";
1230 $this->_capture_stack[] = array($buffer, $assign, $append);
1231 } else {
1232 list($buffer, $assign, $append) = array_pop($this->_capture_stack);
1233 $output = "<?php \$this->_smarty_vars['capture'][$buffer] = ob_get_contents(); ";
1234 if (isset($assign)) {
1235 $output .= " \$this->assign($assign, ob_get_contents());";
1236 }
1237 if (isset($append)) {
1238 $output .= " \$this->append($append, ob_get_contents());";
1239 }
1240 $output .= "ob_end_clean(); ?>";
1241 }
1243 return $output;
1244 }
1246 /**
1247 * Compile {if ...} tag
1248 *
1249 * @param string $tag_args
1250 * @param boolean $elseif if true, uses elseif instead of if
1251 * @return string
1252 */
1253 function _compile_if_tag($tag_args, $elseif = false)
1254 {
1256 /* Tokenize args for 'if' tag. */
1257 preg_match_all('~(?>
1258 ' . $this->_obj_call_regexp . '(?:' . $this->_mod_regexp . '*)? | # valid object call
1259 ' . $this->_var_regexp . '(?:' . $this->_mod_regexp . '*)? | # var or quoted string
1260 \-?0[xX][0-9a-fA-F]+|\-?\d+(?:\.\d+)?|\.\d+|!==|===|==|!=|<>|<<|>>|<=|>=|\&\&|\|\||\(|\)|,|\!|\^|=|\&|\~|<|>|\||\%|\+|\-|\/|\*|\@ | # valid non-word token
1261 \b\w+\b | # valid word token
1262 \S+ # anything else
1263 )~x', $tag_args, $match);
1265 $tokens = $match[0];
1267 if(empty($tokens)) {
1268 $_error_msg = $elseif ? "'elseif'" : "'if'";
1269 $_error_msg .= ' statement requires arguments';
1270 $this->_syntax_error($_error_msg, E_USER_ERROR, __FILE__, __LINE__);
1271 }
1274 // make sure we have balanced parenthesis
1275 $token_count = array_count_values($tokens);
1276 if(isset($token_count['(']) && $token_count['('] != $token_count[')']) {
1277 $this->_syntax_error("unbalanced parenthesis in if statement", E_USER_ERROR, __FILE__, __LINE__);
1278 }
1280 $is_arg_stack = array();
1282 for ($i = 0; $i < count($tokens); $i++) {
1284 $token = &$tokens[$i];
1286 switch (strtolower($token)) {
1287 case '!':
1288 case '%':
1289 case '!==':
1290 case '==':
1291 case '===':
1292 case '>':
1293 case '<':
1294 case '!=':
1295 case '<>':
1296 case '<<':
1297 case '>>':
1298 case '<=':
1299 case '>=':
1300 case '&&':
1301 case '||':
1302 case '|':
1303 case '^':
1304 case '&':
1305 case '~':
1306 case ')':
1307 case ',':
1308 case '+':
1309 case '-':
1310 case '*':
1311 case '/':
1312 case '@':
1313 break;
1315 case 'eq':
1316 $token = '==';
1317 break;
1319 case 'ne':
1320 case 'neq':
1321 $token = '!=';
1322 break;
1324 case 'lt':
1325 $token = '<';
1326 break;
1328 case 'le':
1329 case 'lte':
1330 $token = '<=';
1331 break;
1333 case 'gt':
1334 $token = '>';
1335 break;
1337 case 'ge':
1338 case 'gte':
1339 $token = '>=';
1340 break;
1342 case 'and':
1343 $token = '&&';
1344 break;
1346 case 'or':
1347 $token = '||';
1348 break;
1350 case 'not':
1351 $token = '!';
1352 break;
1354 case 'mod':
1355 $token = '%';
1356 break;
1358 case '(':
1359 array_push($is_arg_stack, $i);
1360 break;
1362 case 'is':
1363 /* If last token was a ')', we operate on the parenthesized
1364 expression. The start of the expression is on the stack.
1365 Otherwise, we operate on the last encountered token. */
1366 if ($tokens[$i-1] == ')') {
1367 $is_arg_start = array_pop($is_arg_stack);
1368 if ($is_arg_start != 0) {
1369 if (preg_match('~^' . $this->_func_regexp . '$~', $tokens[$is_arg_start-1])) {
1370 $is_arg_start--;
1371 }
1372 }
1373 } else
1374 $is_arg_start = $i-1;
1375 /* Construct the argument for 'is' expression, so it knows
1376 what to operate on. */
1377 $is_arg = implode(' ', array_slice($tokens, $is_arg_start, $i - $is_arg_start));
1379 /* Pass all tokens from next one until the end to the
1380 'is' expression parsing function. The function will
1381 return modified tokens, where the first one is the result
1382 of the 'is' expression and the rest are the tokens it
1383 didn't touch. */
1384 $new_tokens = $this->_parse_is_expr($is_arg, array_slice($tokens, $i+1));
1386 /* Replace the old tokens with the new ones. */
1387 array_splice($tokens, $is_arg_start, count($tokens), $new_tokens);
1389 /* Adjust argument start so that it won't change from the
1390 current position for the next iteration. */
1391 $i = $is_arg_start;
1392 break;
1394 default:
1395 if(preg_match('~^' . $this->_func_regexp . '$~', $token) ) {
1396 // function call
1397 if($this->security &&
1398 !in_array($token, $this->security_settings['IF_FUNCS'])) {
1399 $this->_syntax_error("(secure mode) '$token' not allowed in if statement", E_USER_ERROR, __FILE__, __LINE__);
1400 }
1401 } elseif(preg_match('~^' . $this->_var_regexp . '$~', $token) && (strpos('+-*/^%&|', substr($token, -1)) === false) && isset($tokens[$i+1]) && $tokens[$i+1] == '(') {
1402 // variable function call
1403 $this->_syntax_error("variable function call '$token' not allowed in if statement", E_USER_ERROR, __FILE__, __LINE__);
1404 } elseif(preg_match('~^' . $this->_obj_call_regexp . '|' . $this->_var_regexp . '(?:' . $this->_mod_regexp . '*)$~', $token)) {
1405 // object or variable
1406 $token = $this->_parse_var_props($token);
1407 } elseif(is_numeric($token)) {
1408 // number, skip it
1409 } else {
1410 $this->_syntax_error("unidentified token '$token'", E_USER_ERROR, __FILE__, __LINE__);
1411 }
1412 break;
1413 }
1414 }
1416 if ($elseif)
1417 return '<?php elseif ('.implode(' ', $tokens).'): ?>';
1418 else
1419 return '<?php if ('.implode(' ', $tokens).'): ?>';
1420 }
1423 function _compile_arg_list($type, $name, $attrs, &$cache_code) {
1424 $arg_list = array();
1426 if (isset($type) && isset($name)
1427 && isset($this->_plugins[$type])
1428 && isset($this->_plugins[$type][$name])
1429 && empty($this->_plugins[$type][$name][4])
1430 && is_array($this->_plugins[$type][$name][5])
1431 ) {
1432 /* we have a list of parameters that should be cached */
1433 $_cache_attrs = $this->_plugins[$type][$name][5];
1434 $_count = $this->_cache_attrs_count++;
1435 $cache_code = "\$_cache_attrs =& \$this->_smarty_cache_attrs('$this->_cache_serial','$_count');";
1437 } else {
1438 /* no parameters are cached */
1439 $_cache_attrs = null;
1440 }
1442 foreach ($attrs as $arg_name => $arg_value) {
1443 if (is_bool($arg_value))
1444 $arg_value = $arg_value ? 'true' : 'false';
1445 if (is_null($arg_value))
1446 $arg_value = 'null';
1447 if ($_cache_attrs && in_array($arg_name, $_cache_attrs)) {
1448 $arg_list[] = "'$arg_name' => (\$this->_cache_including) ? \$_cache_attrs['$arg_name'] : (\$_cache_attrs['$arg_name']=$arg_value)";
1449 } else {
1450 $arg_list[] = "'$arg_name' => $arg_value";
1451 }
1452 }
1453 return $arg_list;
1454 }
1456 /**
1457 * Parse is expression
1458 *
1459 * @param string $is_arg
1460 * @param array $tokens
1461 * @return array
1462 */
1463 function _parse_is_expr($is_arg, $tokens)
1464 {
1465 $expr_end = 0;
1466 $negate_expr = false;
1468 if (($first_token = array_shift($tokens)) == 'not') {
1469 $negate_expr = true;
1470 $expr_type = array_shift($tokens);
1471 } else
1472 $expr_type = $first_token;
1474 switch ($expr_type) {
1475 case 'even':
1476 if (isset($tokens[$expr_end]) && $tokens[$expr_end] == 'by') {
1477 $expr_end++;
1478 $expr_arg = $tokens[$expr_end++];
1479 $expr = "!(1 & ($is_arg / " . $this->_parse_var_props($expr_arg) . "))";
1480 } else
1481 $expr = "!(1 & $is_arg)";
1482 break;
1484 case 'odd':
1485 if (isset($tokens[$expr_end]) && $tokens[$expr_end] == 'by') {
1486 $expr_end++;
1487 $expr_arg = $tokens[$expr_end++];
1488 $expr = "(1 & ($is_arg / " . $this->_parse_var_props($expr_arg) . "))";
1489 } else
1490 $expr = "(1 & $is_arg)";
1491 break;
1493 case 'div':
1494 if (@$tokens[$expr_end] == 'by') {
1495 $expr_end++;
1496 $expr_arg = $tokens[$expr_end++];
1497 $expr = "!($is_arg % " . $this->_parse_var_props($expr_arg) . ")";
1498 } else {
1499 $this->_syntax_error("expecting 'by' after 'div'", E_USER_ERROR, __FILE__, __LINE__);
1500 }
1501 break;
1503 default:
1504 $this->_syntax_error("unknown 'is' expression - '$expr_type'", E_USER_ERROR, __FILE__, __LINE__);
1505 break;
1506 }
1508 if ($negate_expr) {
1509 $expr = "!($expr)";
1510 }
1512 array_splice($tokens, 0, $expr_end, $expr);
1514 return $tokens;
1515 }
1518 /**
1519 * Parse attribute string
1520 *
1521 * @param string $tag_args
1522 * @return array
1523 */
1524 function _parse_attrs($tag_args)
1525 {
1527 /* Tokenize tag attributes. */
1528 preg_match_all('~(?:' . $this->_obj_call_regexp . '|' . $this->_qstr_regexp . ' | (?>[^"\'=\s]+)
1529 )+ |
1530 [=]
1531 ~x', $tag_args, $match);
1532 $tokens = $match[0];
1534 $attrs = array();
1535 /* Parse state:
1536 0 - expecting attribute name
1537 1 - expecting '='
1538 2 - expecting attribute value (not '=') */
1539 $state = 0;
1541 foreach ($tokens as $token) {
1542 switch ($state) {
1543 case 0:
1544 /* If the token is a valid identifier, we set attribute name
1545 and go to state 1. */
1546 if (preg_match('~^\w+$~', $token)) {
1547 $attr_name = $token;
1548 $state = 1;
1549 } else
1550 $this->_syntax_error("invalid attribute name: '$token'", E_USER_ERROR, __FILE__, __LINE__);
1551 break;
1553 case 1:
1554 /* If the token is '=', then we go to state 2. */
1555 if ($token == '=') {
1556 $state = 2;
1557 } else
1558 $this->_syntax_error("expecting '=' after attribute name '$last_token'", E_USER_ERROR, __FILE__, __LINE__);
1559 break;
1561 case 2:
1562 /* If token is not '=', we set the attribute value and go to
1563 state 0. */
1564 if ($token != '=') {
1565 /* We booleanize the token if it's a non-quoted possible
1566 boolean value. */
1567 if (preg_match('~^(on|yes|true)$~', $token)) {
1568 $token = 'true';
1569 } else if (preg_match('~^(off|no|false)$~', $token)) {
1570 $token = 'false';
1571 } else if ($token == 'null') {
1572 $token = 'null';
1573 } else if (preg_match('~^' . $this->_num_const_regexp . '|0[xX][0-9a-fA-F]+$~', $token)) {
1574 /* treat integer literally */
1575 } else if (!preg_match('~^' . $this->_obj_call_regexp . '|' . $this->_var_regexp . '(?:' . $this->_mod_regexp . ')*$~', $token)) {
1576 /* treat as a string, double-quote it escaping quotes */
1577 $token = '"'.addslashes($token).'"';
1578 }
1580 $attrs[$attr_name] = $token;
1581 $state = 0;
1582 } else
1583 $this->_syntax_error("'=' cannot be an attribute value", E_USER_ERROR, __FILE__, __LINE__);
1584 break;
1585 }
1586 $last_token = $token;
1587 }
1589 if($state != 0) {
1590 if($state == 1) {
1591 $this->_syntax_error("expecting '=' after attribute name '$last_token'", E_USER_ERROR, __FILE__, __LINE__);
1592 } else {
1593 $this->_syntax_error("missing attribute value", E_USER_ERROR, __FILE__, __LINE__);
1594 }
1595 }
1597 $this->_parse_vars_props($attrs);
1599 return $attrs;
1600 }
1602 /**
1603 * compile multiple variables and section properties tokens into
1604 * PHP code
1605 *
1606 * @param array $tokens
1607 */
1608 function _parse_vars_props(&$tokens)
1609 {
1610 foreach($tokens as $key => $val) {
1611 $tokens[$key] = $this->_parse_var_props($val);
1612 }
1613 }
1615 /**
1616 * compile single variable and section properties token into
1617 * PHP code
1618 *
1619 * @param string $val
1620 * @param string $tag_attrs
1621 * @return string
1622 */
1623 function _parse_var_props($val)
1624 {
1625 $val = trim($val);
1627 if(preg_match('~^(' . $this->_obj_call_regexp . '|' . $this->_dvar_regexp . ')(' . $this->_mod_regexp . '*)$~', $val, $match)) {
1628 // $ variable or object
1629 $return = $this->_parse_var($match[1]);
1630 $modifiers = $match[2];
1631 if (!empty($this->default_modifiers) && !preg_match('~(^|\|)smarty:nodefaults($|\|)~',$modifiers)) {
1632 $_default_mod_string = implode('|',(array)$this->default_modifiers);
1633 $modifiers = empty($modifiers) ? $_default_mod_string : $_default_mod_string . '|' . $modifiers;
1634 }
1635 $this->_parse_modifiers($return, $modifiers);
1636 return $return;
1637 } elseif (preg_match('~^' . $this->_db_qstr_regexp . '(?:' . $this->_mod_regexp . '*)$~', $val)) {
1638 // double quoted text
1639 preg_match('~^(' . $this->_db_qstr_regexp . ')('. $this->_mod_regexp . '*)$~', $val, $match);
1640 $return = $this->_expand_quoted_text($match[1]);
1641 if($match[2] != '') {
1642 $this->_parse_modifiers($return, $match[2]);
1643 }
1644 return $return;
1645 }
1646 elseif(preg_match('~^' . $this->_num_const_regexp . '(?:' . $this->_mod_regexp . '*)$~', $val)) {
1647 // numerical constant
1648 preg_match('~^(' . $this->_num_const_regexp . ')('. $this->_mod_regexp . '*)$~', $val, $match);
1649 if($match[2] != '') {
1650 $this->_parse_modifiers($match[1], $match[2]);
1651 return $match[1];
1652 }
1653 }
1654 elseif(preg_match('~^' . $this->_si_qstr_regexp . '(?:' . $this->_mod_regexp . '*)$~', $val)) {
1655 // single quoted text
1656 preg_match('~^(' . $this->_si_qstr_regexp . ')('. $this->_mod_regexp . '*)$~', $val, $match);
1657 if($match[2] != '') {
1658 $this->_parse_modifiers($match[1], $match[2]);
1659 return $match[1];
1660 }
1661 }
1662 elseif(preg_match('~^' . $this->_cvar_regexp . '(?:' . $this->_mod_regexp . '*)$~', $val)) {
1663 // config var
1664 return $this->_parse_conf_var($val);
1665 }
1666 elseif(preg_match('~^' . $this->_svar_regexp . '(?:' . $this->_mod_regexp . '*)$~', $val)) {
1667 // section var
1668 return $this->_parse_section_prop($val);
1669 }
1670 elseif(!in_array($val, $this->_permitted_tokens) && !is_numeric($val)) {
1671 // literal string
1672 return $this->_expand_quoted_text('"' . strtr($val, array('\\' => '\\\\', '"' => '\\"')) .'"');
1673 }
1674 return $val;
1675 }
1677 /**
1678 * expand quoted text with embedded variables
1679 *
1680 * @param string $var_expr
1681 * @return string
1682 */
1683 function _expand_quoted_text($var_expr)
1684 {
1685 // if contains unescaped $, expand it
1686 if(preg_match_all('~(?:\`(?<!\\\\)\$' . $this->_dvar_guts_regexp . '(?:' . $this->_obj_ext_regexp . ')*\`)|(?:(?<!\\\\)\$\w+(\[[a-zA-Z0-9]+\])*)~', $var_expr, $_match)) {
1687 $_match = $_match[0];
1688 $_replace = array();
1689 foreach($_match as $_var) {
1690 $_replace[$_var] = '".(' . $this->_parse_var(str_replace('`','',$_var)) . ')."';
1691 }
1692 $var_expr = strtr($var_expr, $_replace);
1693 $_return = preg_replace('~\.""|(?<!\\\\)""\.~', '', $var_expr);
1694 } else {
1695 $_return = $var_expr;
1696 }
1697 // replace double quoted literal string with single quotes
1698 $_return = preg_replace('~^"([\s\w]+)"$~',"'\\1'",$_return);
1699 return $_return;
1700 }
1702 /**
1703 * parse variable expression into PHP code
1704 *
1705 * @param string $var_expr
1706 * @param string $output
1707 * @return string
1708 */
1709 function _parse_var($var_expr)
1710 {
1711 $_has_math = false;
1712 $_math_vars = preg_split('~('.$this->_dvar_math_regexp.'|'.$this->_qstr_regexp.')~', $var_expr, -1, PREG_SPLIT_DELIM_CAPTURE);
1714 if(count($_math_vars) > 1) {
1715 $_first_var = "";
1716 $_complete_var = "";
1717 $_output = "";
1718 // simple check if there is any math, to stop recursion (due to modifiers with "xx % yy" as parameter)
1719 foreach($_math_vars as $_k => $_math_var) {
1720 $_math_var = $_math_vars[$_k];
1722 if(!empty($_math_var) || is_numeric($_math_var)) {
1723 // hit a math operator, so process the stuff which came before it
1724 if(preg_match('~^' . $this->_dvar_math_regexp . '$~', $_math_var)) {
1725 $_has_math = true;
1726 if(!empty($_complete_var) || is_numeric($_complete_var)) {
1727 $_output .= $this->_parse_var($_complete_var);
1728 }
1730 // just output the math operator to php
1731 $_output .= $_math_var;
1733 if(empty($_first_var))
1734 $_first_var = $_complete_var;
1736 $_complete_var = "";
1737 } else {
1738 $_complete_var .= $_math_var;
1739 }
1740 }
1741 }
1742 if($_has_math) {
1743 if(!empty($_complete_var) || is_numeric($_complete_var))
1744 $_output .= $this->_parse_var($_complete_var);
1746 // get the modifiers working (only the last var from math + modifier is left)
1747 $var_expr = $_complete_var;
1748 }
1749 }
1751 // prevent cutting of first digit in the number (we _definitly_ got a number if the first char is a digit)
1752 if(is_numeric(substr($var_expr, 0, 1)))
1753 $_var_ref = $var_expr;
1754 else
1755 $_var_ref = substr($var_expr, 1);
1757 if(!$_has_math) {
1759 // get [foo] and .foo and ->foo and (...) pieces
1760 preg_match_all('~(?:^\w+)|' . $this->_obj_params_regexp . '|(?:' . $this->_var_bracket_regexp . ')|->\$?\w+|\.\$?\w+|\S+~', $_var_ref, $match);
1762 $_indexes = $match[0];
1763 $_var_name = array_shift($_indexes);
1765 /* Handle $smarty.* variable references as a special case. */
1766 if ($_var_name == 'smarty') {
1767 /*
1768 * If the reference could be compiled, use the compiled output;
1769 * otherwise, fall back on the $smarty variable generated at
1770 * run-time.
1771 */
1772 if (($smarty_ref = $this->_compile_smarty_ref($_indexes)) !== null) {
1773 $_output = $smarty_ref;
1774 } else {
1775 $_var_name = substr(array_shift($_indexes), 1);
1776 $_output = "\$this->_smarty_vars['$_var_name']";
1777 }
1778 } elseif(is_numeric($_var_name) && is_numeric(substr($var_expr, 0, 1))) {
1779 // because . is the operator for accessing arrays thru inidizes we need to put it together again for floating point numbers
1780 if(count($_indexes) > 0)
1781 {
1782 $_var_name .= implode("", $_indexes);
1783 $_indexes = array();
1784 }
1785 $_output = $_var_name;
1786 } else {
1787 $_output = "\$this->_tpl_vars['$_var_name']";
1788 }
1790 foreach ($_indexes as $_index) {
1791 if (substr($_index, 0, 1) == '[') {
1792 $_index = substr($_index, 1, -1);
1793 if (is_numeric($_index)) {
1794 $_output .= "[$_index]";
1795 } elseif (substr($_index, 0, 1) == '$') {
1796 if (strpos($_index, '.') !== false) {
1797 $_output .= '[' . $this->_parse_var($_index) . ']';
1798 } else {
1799 $_output .= "[\$this->_tpl_vars['" . substr($_index, 1) . "']]";
1800 }
1801 } else {
1802 $_var_parts = explode('.', $_index);
1803 $_var_section = $_var_parts[0];
1804 $_var_section_prop = isset($_var_parts[1]) ? $_var_parts[1] : 'index';
1805 $_output .= "[\$this->_sections['$_var_section']['$_var_section_prop']]";
1806 }
1807 } else if (substr($_index, 0, 1) == '.') {
1808 if (substr($_index, 1, 1) == '$')
1809 $_output .= "[\$this->_tpl_vars['" . substr($_index, 2) . "']]";
1810 else
1811 $_output .= "['" . substr($_index, 1) . "']";
1812 } else if (substr($_index,0,2) == '->') {
1813 if(substr($_index,2,2) == '__') {
1814 $this->_syntax_error('call to internal object members is not allowed', E_USER_ERROR, __FILE__, __LINE__);
1815 } elseif($this->security && substr($_index, 2, 1) == '_') {
1816 $this->_syntax_error('(secure) call to private object member is not allowed', E_USER_ERROR, __FILE__, __LINE__);
1817 } elseif (substr($_index, 2, 1) == '$') {
1818 if ($this->security) {
1819 $this->_syntax_error('(secure) call to dynamic object member is not allowed', E_USER_ERROR, __FILE__, __LINE__);
1820 } else {
1821 $_output .= '->{(($_var=$this->_tpl_vars[\''.substr($_index,3).'\']) && substr($_var,0,2)!=\'__\') ? $_var : $this->trigger_error("cannot access property \\"$_var\\"")}';
1822 }
1823 } else {
1824 $_output .= $_index;
1825 }
1826 } elseif (substr($_index, 0, 1) == '(') {
1827 $_index = $this->_parse_parenth_args($_index);
1828 $_output .= $_index;
1829 } else {
1830 $_output .= $_index;
1831 }
1832 }
1833 }
1835 return $_output;
1836 }
1838 /**
1839 * parse arguments in function call parenthesis
1840 *
1841 * @param string $parenth_args
1842 * @return string
1843 */
1844 function _parse_parenth_args($parenth_args)
1845 {
1846 preg_match_all('~' . $this->_param_regexp . '~',$parenth_args, $match);
1847 $orig_vals = $match = $match[0];
1848 $this->_parse_vars_props($match);
1849 $replace = array();
1850 for ($i = 0, $count = count($match); $i < $count; $i++) {
1851 $replace[$orig_vals[$i]] = $match[$i];
1852 }
1853 return strtr($parenth_args, $replace);
1854 }
1856 /**
1857 * parse configuration variable expression into PHP code
1858 *
1859 * @param string $conf_var_expr
1860 */
1861 function _parse_conf_var($conf_var_expr)
1862 {
1863 $parts = explode('|', $conf_var_expr, 2);
1864 $var_ref = $parts[0];
1865 $modifiers = isset($parts[1]) ? $parts[1] : '';
1867 $var_name = substr($var_ref, 1, -1);
1869 $output = "\$this->_config[0]['vars']['$var_name']";
1871 $this->_parse_modifiers($output, $modifiers);
1873 return $output;
1874 }
1876 /**
1877 * parse section property expression into PHP code
1878 *
1879 * @param string $section_prop_expr
1880 * @return string
1881 */
1882 function _parse_section_prop($section_prop_expr)
1883 {
1884 $parts = explode('|', $section_prop_expr, 2);
1885 $var_ref = $parts[0];
1886 $modifiers = isset($parts[1]) ? $parts[1] : '';
1888 preg_match('!%(\w+)\.(\w+)%!', $var_ref, $match);
1889 $section_name = $match[1];
1890 $prop_name = $match[2];
1892 $output = "\$this->_sections['$section_name']['$prop_name']";
1894 $this->_parse_modifiers($output, $modifiers);
1896 return $output;
1897 }
1900 /**
1901 * parse modifier chain into PHP code
1902 *
1903 * sets $output to parsed modified chain
1904 * @param string $output
1905 * @param string $modifier_string
1906 */
1907 function _parse_modifiers(&$output, $modifier_string)
1908 {
1909 preg_match_all('~\|(@?\w+)((?>:(?:'. $this->_qstr_regexp . '|[^|]+))*)~', '|' . $modifier_string, $_match);
1910 list(, $_modifiers, $modifier_arg_strings) = $_match;
1912 for ($_i = 0, $_for_max = count($_modifiers); $_i < $_for_max; $_i++) {
1913 $_modifier_name = $_modifiers[$_i];
1915 if($_modifier_name == 'smarty') {
1916 // skip smarty modifier
1917 continue;
1918 }
1920 preg_match_all('~:(' . $this->_qstr_regexp . '|[^:]+)~', $modifier_arg_strings[$_i], $_match);
1921 $_modifier_args = $_match[1];
1923 if (substr($_modifier_name, 0, 1) == '@') {
1924 $_map_array = false;
1925 $_modifier_name = substr($_modifier_name, 1);
1926 } else {
1927 $_map_array = true;
1928 }
1930 if (empty($this->_plugins['modifier'][$_modifier_name])
1931 && !$this->_get_plugin_filepath('modifier', $_modifier_name)
1932 && function_exists($_modifier_name)) {
1933 if ($this->security && !in_array($_modifier_name, $this->security_settings['MODIFIER_FUNCS'])) {
1934 $this->_trigger_fatal_error("[plugin] (secure mode) modifier '$_modifier_name' is not allowed" , $this->_current_file, $this->_current_line_no, __FILE__, __LINE__);
1935 } else {
1936 $this->_plugins['modifier'][$_modifier_name] = array($_modifier_name, null, null, false);
1937 }
1938 }
1939 $this->_add_plugin('modifier', $_modifier_name);
1941 $this->_parse_vars_props($_modifier_args);
1943 if($_modifier_name == 'default') {
1944 // supress notifications of default modifier vars and args
1945 if(substr($output, 0, 1) == '$') {
1946 $output = '@' . $output;
1947 }
1948 if(isset($_modifier_args[0]) && substr($_modifier_args[0], 0, 1) == '$') {
1949 $_modifier_args[0] = '@' . $_modifier_args[0];
1950 }
1951 }
1952 if (count($_modifier_args) > 0)
1953 $_modifier_args = ', '.implode(', ', $_modifier_args);
1954 else
1955 $_modifier_args = '';
1957 if ($_map_array) {
1958 $output = "((is_array(\$_tmp=$output)) ? \$this->_run_mod_handler('$_modifier_name', true, \$_tmp$_modifier_args) : " . $this->_compile_plugin_call('modifier', $_modifier_name) . "(\$_tmp$_modifier_args))";
1960 } else {
1962 $output = $this->_compile_plugin_call('modifier', $_modifier_name)."($output$_modifier_args)";
1964 }
1965 }
1966 }
1969 /**
1970 * add plugin
1971 *
1972 * @param string $type
1973 * @param string $name
1974 * @param boolean? $delayed_loading
1975 */
1976 function _add_plugin($type, $name, $delayed_loading = null)
1977 {
1978 if (!isset($this->_plugin_info[$type])) {
1979 $this->_plugin_info[$type] = array();
1980 }
1981 if (!isset($this->_plugin_info[$type][$name])) {
1982 $this->_plugin_info[$type][$name] = array($this->_current_file,
1983 $this->_current_line_no,
1984 $delayed_loading);
1985 }
1986 }
1989 /**
1990 * Compiles references of type $smarty.foo
1991 *
1992 * @param string $indexes
1993 * @return string
1994 */
1995 function _compile_smarty_ref(&$indexes)
1996 {
1997 /* Extract the reference name. */
1998 $_ref = substr($indexes[0], 1);
1999 foreach($indexes as $_index_no=>$_index) {
2000 if (substr($_index, 0, 1) != '.' && $_index_no<2 || !preg_match('~^(\.|\[|->)~', $_index)) {
2001 $this->_syntax_error('$smarty' . implode('', array_slice($indexes, 0, 2)) . ' is an invalid reference', E_USER_ERROR, __FILE__, __LINE__);
2002 }
2003 }
2005 switch ($_ref) {
2006 case 'now':
2007 $compiled_ref = 'time()';
2008 $_max_index = 1;
2009 break;
2011 case 'foreach':
2012 array_shift($indexes);
2013 $_var = $this->_parse_var_props(substr($indexes[0], 1));
2014 $_propname = substr($indexes[1], 1);
2015 $_max_index = 1;
2016 switch ($_propname) {
2017 case 'index':
2018 array_shift($indexes);
2019 $compiled_ref = "(\$this->_foreach[$_var]['iteration']-1)";
2020 break;
2022 case 'first':
2023 array_shift($indexes);
2024 $compiled_ref = "(\$this->_foreach[$_var]['iteration'] <= 1)";
2025 break;
2027 case 'last':
2028 array_shift($indexes);
2029 $compiled_ref = "(\$this->_foreach[$_var]['iteration'] == \$this->_foreach[$_var]['total'])";
2030 break;
2032 case 'show':
2033 array_shift($indexes);
2034 $compiled_ref = "(\$this->_foreach[$_var]['total'] > 0)";
2035 break;
2037 default:
2038 unset($_max_index);
2039 $compiled_ref = "\$this->_foreach[$_var]";
2040 }
2041 break;
2043 case 'section':
2044 array_shift($indexes);
2045 $_var = $this->_parse_var_props(substr($indexes[0], 1));
2046 $compiled_ref = "\$this->_sections[$_var]";
2047 break;
2049 case 'get':
2050 if ($this->security && !$this->security_settings['ALLOW_SUPER_GLOBALS']) {
2051 $this->_syntax_error("(secure mode) super global access not permitted",
2052 E_USER_WARNING, __FILE__, __LINE__);
2053 return;
2054 }
2055 $compiled_ref = "\$_GET";
2056 break;
2058 case 'post':
2059 if ($this->security && !$this->security_settings['ALLOW_SUPER_GLOBALS']) {
2060 $this->_syntax_error("(secure mode) super global access not permitted",
2061 E_USER_WARNING, __FILE__, __LINE__);
2062 return;
2063 }
2064 $compiled_ref = "\$_POST";
2065 break;
2067 case 'cookies':
2068 if ($this->security && !$this->security_settings['ALLOW_SUPER_GLOBALS']) {
2069 $this->_syntax_error("(secure mode) super global access not permitted",
2070 E_USER_WARNING, __FILE__, __LINE__);
2071 return;
2072 }
2073 $compiled_ref = "\$_COOKIE";
2074 break;
2076 case 'env':
2077 if ($this->security && !$this->security_settings['ALLOW_SUPER_GLOBALS']) {
2078 $this->_syntax_error("(secure mode) super global access not permitted",
2079 E_USER_WARNING, __FILE__, __LINE__);
2080 return;
2081 }
2082 $compiled_ref = "\$_ENV";
2083 break;
2085 case 'server':
2086 if ($this->security && !$this->security_settings['ALLOW_SUPER_GLOBALS']) {
2087 $this->_syntax_error("(secure mode) super global access not permitted",
2088 E_USER_WARNING, __FILE__, __LINE__);
2089 return;
2090 }
2091 $compiled_ref = "\$_SERVER";
2092 break;
2094 case 'session':
2095 if ($this->security && !$this->security_settings['ALLOW_SUPER_GLOBALS']) {
2096 $this->_syntax_error("(secure mode) super global access not permitted",
2097 E_USER_WARNING, __FILE__, __LINE__);
2098 return;
2099 }
2100 $compiled_ref = "\$_SESSION";
2101 break;
2103 /*
2104 * These cases are handled either at run-time or elsewhere in the
2105 * compiler.
2106 */
2107 case 'request':
2108 if ($this->security && !$this->security_settings['ALLOW_SUPER_GLOBALS']) {
2109 $this->_syntax_error("(secure mode) super global access not permitted",
2110 E_USER_WARNING, __FILE__, __LINE__);
2111 return;
2112 }
2113 if ($this->request_use_auto_globals) {
2114 $compiled_ref = "\$_REQUEST";
2115 break;
2116 } else {
2117 $this->_init_smarty_vars = true;
2118 }
2119 return null;
2121 case 'capture':
2122 return null;
2124 case 'template':
2125 $compiled_ref = "'$this->_current_file'";
2126 $_max_index = 1;
2127 break;
2129 case 'version':
2130 $compiled_ref = "'$this->_version'";
2131 $_max_index = 1;
2132 break;
2134 case 'const':
2135 if ($this->security && !$this->security_settings['ALLOW_CONSTANTS']) {
2136 $this->_syntax_error("(secure mode) constants not permitted",
2137 E_USER_WARNING, __FILE__, __LINE__);
2138 return;
2139 }
2140 array_shift($indexes);
2141 if (preg_match('!^\.\w+$!', $indexes[0])) {
2142 $compiled_ref = '@' . substr($indexes[0], 1);
2143 } else {
2144 $_val = $this->_parse_var_props(substr($indexes[0], 1));
2145 $compiled_ref = '@constant(' . $_val . ')';
2146 }
2147 $_max_index = 1;
2148 break;
2150 case 'config':
2151 $compiled_ref = "\$this->_config[0]['vars']";
2152 $_max_index = 3;
2153 break;
2155 case 'ldelim':
2156 $compiled_ref = "'$this->left_delimiter'";
2157 break;
2159 case 'rdelim':
2160 $compiled_ref = "'$this->right_delimiter'";
2161 break;
2163 default:
2164 $this->_syntax_error('$smarty.' . $_ref . ' is an unknown reference', E_USER_ERROR, __FILE__, __LINE__);
2165 break;
2166 }
2168 if (isset($_max_index) && count($indexes) > $_max_index) {
2169 $this->_syntax_error('$smarty' . implode('', $indexes) .' is an invalid reference', E_USER_ERROR, __FILE__, __LINE__);
2170 }
2172 array_shift($indexes);
2173 return $compiled_ref;
2174 }
2176 /**
2177 * compiles call to plugin of type $type with name $name
2178 * returns a string containing the function-name or method call
2179 * without the paramter-list that would have follow to make the
2180 * call valid php-syntax
2181 *
2182 * @param string $type
2183 * @param string $name
2184 * @return string
2185 */
2186 function _compile_plugin_call($type, $name) {
2187 if (isset($this->_plugins[$type][$name])) {
2188 /* plugin loaded */
2189 if (is_array($this->_plugins[$type][$name][0])) {
2190 return ((is_object($this->_plugins[$type][$name][0][0])) ?
2191 "\$this->_plugins['$type']['$name'][0][0]->" /* method callback */
2192 : (string)($this->_plugins[$type][$name][0][0]).'::' /* class callback */
2193 ). $this->_plugins[$type][$name][0][1];
2195 } else {
2196 /* function callback */
2197 return $this->_plugins[$type][$name][0];
2199 }
2200 } else {
2201 /* plugin not loaded -> auto-loadable-plugin */
2202 return 'smarty_'.$type.'_'.$name;
2204 }
2205 }
2207 /**
2208 * load pre- and post-filters
2209 */
2210 function _load_filters()
2211 {
2212 if (count($this->_plugins['prefilter']) > 0) {
2213 foreach ($this->_plugins['prefilter'] as $filter_name => $prefilter) {
2214 if ($prefilter === false) {
2215 unset($this->_plugins['prefilter'][$filter_name]);
2216 $_params = array('plugins' => array(array('prefilter', $filter_name, null, null, false)));
2217 require_once(SMARTY_CORE_DIR . 'core.load_plugins.php');
2218 smarty_core_load_plugins($_params, $this);
2219 }
2220 }
2221 }
2222 if (count($this->_plugins['postfilter']) > 0) {
2223 foreach ($this->_plugins['postfilter'] as $filter_name => $postfilter) {
2224 if ($postfilter === false) {
2225 unset($this->_plugins['postfilter'][$filter_name]);
2226 $_params = array('plugins' => array(array('postfilter', $filter_name, null, null, false)));
2227 require_once(SMARTY_CORE_DIR . 'core.load_plugins.php');
2228 smarty_core_load_plugins($_params, $this);
2229 }
2230 }
2231 }
2232 }
2235 /**
2236 * Quote subpattern references
2237 *
2238 * @param string $string
2239 * @return string
2240 */
2241 function _quote_replace($string)
2242 {
2243 return strtr($string, array('\\' => '\\\\', '$' => '\\$'));
2244 }
2246 /**
2247 * display Smarty syntax error
2248 *
2249 * @param string $error_msg
2250 * @param integer $error_type
2251 * @param string $file
2252 * @param integer $line
2253 */
2254 function _syntax_error($error_msg, $error_type = E_USER_ERROR, $file=null, $line=null)
2255 {
2256 $this->_trigger_fatal_error("syntax error: $error_msg", $this->_current_file, $this->_current_line_no, $file, $line, $error_type);
2257 }
2260 /**
2261 * check if the compilation changes from cacheable to
2262 * non-cacheable state with the beginning of the current
2263 * plugin. return php-code to reflect the transition.
2264 * @return string
2265 */
2266 function _push_cacheable_state($type, $name) {
2267 $_cacheable = !isset($this->_plugins[$type][$name]) || $this->_plugins[$type][$name][4];
2268 if ($_cacheable
2269 || 0<$this->_cacheable_state++) return '';
2270 if (!isset($this->_cache_serial)) $this->_cache_serial = md5(uniqid('Smarty'));
2271 $_ret = 'if ($this->caching && !$this->_cache_including): echo \'{nocache:'
2272 . $this->_cache_serial . '#' . $this->_nocache_count
2273 . '}\'; endif;';
2274 return $_ret;
2275 }
2278 /**
2279 * check if the compilation changes from non-cacheable to
2280 * cacheable state with the end of the current plugin return
2281 * php-code to reflect the transition.
2282 * @return string
2283 */
2284 function _pop_cacheable_state($type, $name) {
2285 $_cacheable = !isset($this->_plugins[$type][$name]) || $this->_plugins[$type][$name][4];
2286 if ($_cacheable
2287 || --$this->_cacheable_state>0) return '';
2288 return 'if ($this->caching && !$this->_cache_including): echo \'{/nocache:'
2289 . $this->_cache_serial . '#' . ($this->_nocache_count++)
2290 . '}\'; endif;';
2291 }
2294 /**
2295 * push opening tag-name, file-name and line-number on the tag-stack
2296 * @param string the opening tag's name
2297 */
2298 function _push_tag($open_tag)
2299 {
2300 array_push($this->_tag_stack, array($open_tag, $this->_current_line_no));
2301 }
2303 /**
2304 * pop closing tag-name
2305 * raise an error if this stack-top doesn't match with the closing tag
2306 * @param string the closing tag's name
2307 * @return string the opening tag's name
2308 */
2309 function _pop_tag($close_tag)
2310 {
2311 $message = '';
2312 if (count($this->_tag_stack)>0) {
2313 list($_open_tag, $_line_no) = array_pop($this->_tag_stack);
2314 if ($close_tag == $_open_tag) {
2315 return $_open_tag;
2316 }
2317 if ($close_tag == 'if' && ($_open_tag == 'else' || $_open_tag == 'elseif' )) {
2318 return $this->_pop_tag($close_tag);
2319 }
2320 if ($close_tag == 'section' && $_open_tag == 'sectionelse') {
2321 $this->_pop_tag($close_tag);
2322 return $_open_tag;
2323 }
2324 if ($close_tag == 'foreach' && $_open_tag == 'foreachelse') {
2325 $this->_pop_tag($close_tag);
2326 return $_open_tag;
2327 }
2328 if ($_open_tag == 'else' || $_open_tag == 'elseif') {
2329 $_open_tag = 'if';
2330 } elseif ($_open_tag == 'sectionelse') {
2331 $_open_tag = 'section';
2332 } elseif ($_open_tag == 'foreachelse') {
2333 $_open_tag = 'foreach';
2334 }
2335 $message = " expected {/$_open_tag} (opened line $_line_no).";
2336 }
2337 $this->_syntax_error("mismatched tag {/$close_tag}.$message",
2338 E_USER_ERROR, __FILE__, __LINE__);
2339 }
2341 }
2343 /**
2344 * compare to values by their string length
2345 *
2346 * @access private
2347 * @param string $a
2348 * @param string $b
2349 * @return 0|-1|1
2350 */
2351 function _smarty_sort_length($a, $b)
2352 {
2353 if($a == $b)
2354 return 0;
2356 if(strlen($a) == strlen($b))
2357 return ($a > $b) ? -1 : 1;
2359 return (strlen($a) > strlen($b)) ? -1 : 1;
2360 }
2363 /* vim: set et: */
2365 ?>