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/code/web/public_php/admin/smarty/Smarty_Compiler.class.php

https://bitbucket.org/kkszysiu/ryzomcore
PHP | 2365 lines | 1741 code | 218 blank | 406 comment | 318 complexity | 07a0d07db286fb62640c018b85c24924 MD5 | raw file
Possible License(s): AGPL-3.0, GPL-3.0, LGPL-2.1, Apache-2.0

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  1. <?php
  2. /**
  3. * Project: Smarty: the PHP compiling template engine
  4. * File: Smarty_Compiler.class.php
  5. *
  6. * This library is free software; you can redistribute it and/or
  7. * modify it under the terms of the GNU Lesser General Public
  8. * License as published by the Free Software Foundation; either
  9. * version 2.1 of the License, or (at your option) any later version.
  10. *
  11. * This library is distributed in the hope that it will be useful,
  12. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14. * Lesser General Public License for more details.
  15. *
  16. * You should have received a copy of the GNU Lesser General Public
  17. * License along with this library; if not, write to the Free Software
  18. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19. *
  20. * @link http://smarty.php.net/
  21. * @author Monte Ohrt <monte at ohrt dot com>
  22. * @author Andrei Zmievski <andrei@php.net>
  23. * @version 2.6.25-dev
  24. * @copyright 2001-2005 New Digital Group, Inc.
  25. * @package Smarty
  26. */
  27. /* $Id: Smarty_Compiler.class.php 4779 2013-09-30 19:14:32Z Uwe.Tews@googlemail.com $ */
  28. /**
  29. * Template compiling class
  30. * @package Smarty
  31. */
  32. class Smarty_Compiler extends Smarty {
  33. // internal vars
  34. /**#@+
  35. * @access private
  36. */
  37. var $_folded_blocks = array(); // keeps folded template blocks
  38. var $_current_file = null; // the current template being compiled
  39. var $_current_line_no = 1; // line number for error messages
  40. var $_capture_stack = array(); // keeps track of nested capture buffers
  41. var $_plugin_info = array(); // keeps track of plugins to load
  42. var $_init_smarty_vars = false;
  43. var $_permitted_tokens = array('true','false','yes','no','on','off','null');
  44. var $_db_qstr_regexp = null; // regexps are setup in the constructor
  45. var $_si_qstr_regexp = null;
  46. var $_qstr_regexp = null;
  47. var $_func_regexp = null;
  48. var $_reg_obj_regexp = null;
  49. var $_var_bracket_regexp = null;
  50. var $_num_const_regexp = null;
  51. var $_dvar_guts_regexp = null;
  52. var $_dvar_regexp = null;
  53. var $_cvar_regexp = null;
  54. var $_svar_regexp = null;
  55. var $_avar_regexp = null;
  56. var $_mod_regexp = null;
  57. var $_var_regexp = null;
  58. var $_parenth_param_regexp = null;
  59. var $_func_call_regexp = null;
  60. var $_obj_ext_regexp = null;
  61. var $_obj_start_regexp = null;
  62. var $_obj_params_regexp = null;
  63. var $_obj_call_regexp = null;
  64. var $_cacheable_state = 0;
  65. var $_cache_attrs_count = 0;
  66. var $_nocache_count = 0;
  67. var $_cache_serial = null;
  68. var $_cache_include = null;
  69. var $_strip_depth = 0;
  70. var $_additional_newline = "\n";
  71. /**#@-*/
  72. /**
  73. * The class constructor.
  74. */
  75. function Smarty_Compiler()
  76. {
  77. // matches double quoted strings:
  78. // "foobar"
  79. // "foo\"bar"
  80. $this->_db_qstr_regexp = '"[^"\\\\]*(?:\\\\.[^"\\\\]*)*"';
  81. // matches single quoted strings:
  82. // 'foobar'
  83. // 'foo\'bar'
  84. $this->_si_qstr_regexp = '\'[^\'\\\\]*(?:\\\\.[^\'\\\\]*)*\'';
  85. // matches single or double quoted strings
  86. $this->_qstr_regexp = '(?:' . $this->_db_qstr_regexp . '|' . $this->_si_qstr_regexp . ')';
  87. // matches bracket portion of vars
  88. // [0]
  89. // [foo]
  90. // [$bar]
  91. $this->_var_bracket_regexp = '\[\$?[\w\.]+\]';
  92. // matches numerical constants
  93. // 30
  94. // -12
  95. // 13.22
  96. $this->_num_const_regexp = '(?:\-?\d+(?:\.\d+)?)';
  97. // matches $ vars (not objects):
  98. // $foo
  99. // $foo.bar
  100. // $foo.bar.foobar
  101. // $foo[0]
  102. // $foo[$bar]
  103. // $foo[5][blah]
  104. // $foo[5].bar[$foobar][4]
  105. $this->_dvar_math_regexp = '(?:[\+\*\/\%]|(?:-(?!>)))';
  106. $this->_dvar_math_var_regexp = '[\$\w\.\+\-\*\/\%\d\>\[\]]';
  107. $this->_dvar_guts_regexp = '\w+(?:' . $this->_var_bracket_regexp
  108. . ')*(?:\.\$?\w+(?:' . $this->_var_bracket_regexp . ')*)*(?:' . $this->_dvar_math_regexp . '(?:' . $this->_num_const_regexp . '|' . $this->_dvar_math_var_regexp . ')*)?';
  109. $this->_dvar_regexp = '\$' . $this->_dvar_guts_regexp;
  110. // matches config vars:
  111. // #foo#
  112. // #foobar123_foo#
  113. $this->_cvar_regexp = '\#\w+\#';
  114. // matches section vars:
  115. // %foo.bar%
  116. $this->_svar_regexp = '\%\w+\.\w+\%';
  117. // matches all valid variables (no quotes, no modifiers)
  118. $this->_avar_regexp = '(?:' . $this->_dvar_regexp . '|'
  119. . $this->_cvar_regexp . '|' . $this->_svar_regexp . ')';
  120. // matches valid variable syntax:
  121. // $foo
  122. // $foo
  123. // #foo#
  124. // #foo#
  125. // "text"
  126. // "text"
  127. $this->_var_regexp = '(?:' . $this->_avar_regexp . '|' . $this->_qstr_regexp . ')';
  128. // matches valid object call (one level of object nesting allowed in parameters):
  129. // $foo->bar
  130. // $foo->bar()
  131. // $foo->bar("text")
  132. // $foo->bar($foo, $bar, "text")
  133. // $foo->bar($foo, "foo")
  134. // $foo->bar->foo()
  135. // $foo->bar->foo->bar()
  136. // $foo->bar($foo->bar)
  137. // $foo->bar($foo->bar())
  138. // $foo->bar($foo->bar($blah,$foo,44,"foo",$foo[0].bar))
  139. $this->_obj_ext_regexp = '\->(?:\$?' . $this->_dvar_guts_regexp . ')';
  140. $this->_obj_restricted_param_regexp = '(?:'
  141. . '(?:' . $this->_var_regexp . '|' . $this->_num_const_regexp . ')(?:' . $this->_obj_ext_regexp . '(?:\((?:(?:' . $this->_var_regexp . '|' . $this->_num_const_regexp . ')'
  142. . '(?:\s*,\s*(?:' . $this->_var_regexp . '|' . $this->_num_const_regexp . '))*)?\))?)*)';
  143. $this->_obj_single_param_regexp = '(?:\w+|' . $this->_obj_restricted_param_regexp . '(?:\s*,\s*(?:(?:\w+|'
  144. . $this->_var_regexp . $this->_obj_restricted_param_regexp . ')))*)';
  145. $this->_obj_params_regexp = '\((?:' . $this->_obj_single_param_regexp
  146. . '(?:\s*,\s*' . $this->_obj_single_param_regexp . ')*)?\)';
  147. $this->_obj_start_regexp = '(?:' . $this->_dvar_regexp . '(?:' . $this->_obj_ext_regexp . ')+)';
  148. $this->_obj_call_regexp = '(?:' . $this->_obj_start_regexp . '(?:' . $this->_obj_params_regexp . ')?(?:' . $this->_dvar_math_regexp . '(?:' . $this->_num_const_regexp . '|' . $this->_dvar_math_var_regexp . ')*)?)';
  149. // matches valid modifier syntax:
  150. // |foo
  151. // |@foo
  152. // |foo:"bar"
  153. // |foo:$bar
  154. // |foo:"bar":$foobar
  155. // |foo|bar
  156. // |foo:$foo->bar
  157. $this->_mod_regexp = '(?:\|@?\w+(?::(?:\w+|' . $this->_num_const_regexp . '|'
  158. . $this->_obj_call_regexp . '|' . $this->_avar_regexp . '|' . $this->_qstr_regexp .'))*)';
  159. // matches valid function name:
  160. // foo123
  161. // _foo_bar
  162. $this->_func_regexp = '[a-zA-Z_]\w*';
  163. // matches valid registered object:
  164. // foo->bar
  165. $this->_reg_obj_regexp = '[a-zA-Z_]\w*->[a-zA-Z_]\w*';
  166. // matches valid parameter values:
  167. // true
  168. // $foo
  169. // $foo|bar
  170. // #foo#
  171. // #foo#|bar
  172. // "text"
  173. // "text"|bar
  174. // $foo->bar
  175. $this->_param_regexp = '(?:\s*(?:' . $this->_obj_call_regexp . '|'
  176. . $this->_var_regexp . '|' . $this->_num_const_regexp . '|\w+)(?>' . $this->_mod_regexp . '*)\s*)';
  177. // matches valid parenthesised function parameters:
  178. //
  179. // "text"
  180. // $foo, $bar, "text"
  181. // $foo|bar, "foo"|bar, $foo->bar($foo)|bar
  182. $this->_parenth_param_regexp = '(?:\((?:\w+|'
  183. . $this->_param_regexp . '(?:\s*,\s*(?:(?:\w+|'
  184. . $this->_param_regexp . ')))*)?\))';
  185. // matches valid function call:
  186. // foo()
  187. // foo_bar($foo)
  188. // _foo_bar($foo,"bar")
  189. // foo123($foo,$foo->bar(),"foo")
  190. $this->_func_call_regexp = '(?:' . $this->_func_regexp . '\s*(?:'
  191. . $this->_parenth_param_regexp . '))';
  192. }
  193. /**
  194. * compile a resource
  195. *
  196. * sets $compiled_content to the compiled source
  197. * @param string $resource_name
  198. * @param string $source_content
  199. * @param string $compiled_content
  200. * @return true
  201. */
  202. function _compile_file($resource_name, $source_content, &$compiled_content)
  203. {
  204. if ($this->security) {
  205. // do not allow php syntax to be executed unless specified
  206. if ($this->php_handling == SMARTY_PHP_ALLOW &&
  207. !$this->security_settings['PHP_HANDLING']) {
  208. $this->php_handling = SMARTY_PHP_PASSTHRU;
  209. }
  210. }
  211. $this->_load_filters();
  212. $this->_current_file = $resource_name;
  213. $this->_current_line_no = 1;
  214. $ldq = preg_quote($this->left_delimiter, '~');
  215. $rdq = preg_quote($this->right_delimiter, '~');
  216. // run template source through prefilter functions
  217. if (count($this->_plugins['prefilter']) > 0) {
  218. foreach ($this->_plugins['prefilter'] as $filter_name => $prefilter) {
  219. if ($prefilter === false) continue;
  220. if ($prefilter[3] || is_callable($prefilter[0])) {
  221. $source_content = call_user_func_array($prefilter[0],
  222. array($source_content, &$this));
  223. $this->_plugins['prefilter'][$filter_name][3] = true;
  224. } else {
  225. $this->_trigger_fatal_error("[plugin] prefilter '$filter_name' is not implemented");
  226. }
  227. }
  228. }
  229. /* fetch all special blocks */
  230. $search = "~{$ldq}\*(.*?)\*{$rdq}|{$ldq}\s*literal\s*{$rdq}(.*?){$ldq}\s*/literal\s*{$rdq}|{$ldq}\s*php\s*{$rdq}(.*?){$ldq}\s*/php\s*{$rdq}~s";
  231. preg_match_all($search, $source_content, $match, PREG_SET_ORDER);
  232. $this->_folded_blocks = $match;
  233. reset($this->_folded_blocks);
  234. /* replace special blocks by "{php}" */
  235. $source_content = preg_replace_callback($search, create_function ('$matches', "return '"
  236. . $this->_quote_replace($this->left_delimiter) . 'php'
  237. . "' . str_repeat(\"\n\", substr_count('\$matches[1]', \"\n\")) .'"
  238. . $this->_quote_replace($this->right_delimiter)
  239. . "';")
  240. , $source_content);
  241. /* Gather all template tags. */
  242. preg_match_all("~{$ldq}\s*(.*?)\s*{$rdq}~s", $source_content, $_match);
  243. $template_tags = $_match[1];
  244. /* Split content by template tags to obtain non-template content. */
  245. $text_blocks = preg_split("~{$ldq}.*?{$rdq}~s", $source_content);
  246. /* loop through text blocks */
  247. for ($curr_tb = 0, $for_max = count($text_blocks); $curr_tb < $for_max; $curr_tb++) {
  248. /* match anything resembling php tags */
  249. if (preg_match_all('~(<\?(?:\w+|=)?|\?>|language\s*=\s*[\"\']?\s*php\s*[\"\']?)~is', $text_blocks[$curr_tb], $sp_match)) {
  250. /* replace tags with placeholders to prevent recursive replacements */
  251. $sp_match[1] = array_unique($sp_match[1]);
  252. usort($sp_match[1], '_smarty_sort_length');
  253. for ($curr_sp = 0, $for_max2 = count($sp_match[1]); $curr_sp < $for_max2; $curr_sp++) {
  254. $text_blocks[$curr_tb] = str_replace($sp_match[1][$curr_sp],'%%%SMARTYSP'.$curr_sp.'%%%',$text_blocks[$curr_tb]);
  255. }
  256. /* process each one */
  257. for ($curr_sp = 0, $for_max2 = count($sp_match[1]); $curr_sp < $for_max2; $curr_sp++) {
  258. if ($this->php_handling == SMARTY_PHP_PASSTHRU) {
  259. /* echo php contents */
  260. $text_blocks[$curr_tb] = str_replace('%%%SMARTYSP'.$curr_sp.'%%%', '<?php echo \''.str_replace("'", "\'", $sp_match[1][$curr_sp]).'\'; ?>'."\n", $text_blocks[$curr_tb]);
  261. } else if ($this->php_handling == SMARTY_PHP_QUOTE) {
  262. /* quote php tags */
  263. $text_blocks[$curr_tb] = str_replace('%%%SMARTYSP'.$curr_sp.'%%%', htmlspecialchars($sp_match[1][$curr_sp]), $text_blocks[$curr_tb]);
  264. } else if ($this->php_handling == SMARTY_PHP_REMOVE) {
  265. /* remove php tags */
  266. $text_blocks[$curr_tb] = str_replace('%%%SMARTYSP'.$curr_sp.'%%%', '', $text_blocks[$curr_tb]);
  267. } else {
  268. /* SMARTY_PHP_ALLOW, but echo non php starting tags */
  269. $sp_match[1][$curr_sp] = preg_replace('~(<\?(?!php|=|$))~i', '<?php echo \'\\1\'?>'."\n", $sp_match[1][$curr_sp]);
  270. $text_blocks[$curr_tb] = str_replace('%%%SMARTYSP'.$curr_sp.'%%%', $sp_match[1][$curr_sp], $text_blocks[$curr_tb]);
  271. }
  272. }
  273. }
  274. }
  275. /* Compile the template tags into PHP code. */
  276. $compiled_tags = array();
  277. for ($i = 0, $for_max = count($template_tags); $i < $for_max; $i++) {
  278. $this->_current_line_no += substr_count($text_blocks[$i], "\n");
  279. $compiled_tags[] = $this->_compile_tag($template_tags[$i]);
  280. $this->_current_line_no += substr_count($template_tags[$i], "\n");
  281. }
  282. if (count($this->_tag_stack)>0) {
  283. list($_open_tag, $_line_no) = end($this->_tag_stack);
  284. $this->_syntax_error("unclosed tag \{$_open_tag} (opened line $_line_no).", E_USER_ERROR, __FILE__, __LINE__);
  285. return;
  286. }
  287. /* Reformat $text_blocks between 'strip' and '/strip' tags,
  288. removing spaces, tabs and newlines. */
  289. $strip = false;
  290. for ($i = 0, $for_max = count($compiled_tags); $i < $for_max; $i++) {
  291. if ($compiled_tags[$i] == '{strip}') {
  292. $compiled_tags[$i] = '';
  293. $strip = true;
  294. /* remove leading whitespaces */
  295. $text_blocks[$i + 1] = ltrim($text_blocks[$i + 1]);
  296. }
  297. if ($strip) {
  298. /* strip all $text_blocks before the next '/strip' */
  299. for ($j = $i + 1; $j < $for_max; $j++) {
  300. /* remove leading and trailing whitespaces of each line */
  301. $text_blocks[$j] = preg_replace('![\t ]*[\r\n]+[\t ]*!', '', $text_blocks[$j]);
  302. if ($compiled_tags[$j] == '{/strip}') {
  303. /* remove trailing whitespaces from the last text_block */
  304. $text_blocks[$j] = rtrim($text_blocks[$j]);
  305. }
  306. $text_blocks[$j] = "<?php echo '" . strtr($text_blocks[$j], array("'"=>"\'", "\\"=>"\\\\")) . "'; ?>";
  307. if ($compiled_tags[$j] == '{/strip}') {
  308. $compiled_tags[$j] = "\n"; /* slurped by php, but necessary
  309. if a newline is following the closing strip-tag */
  310. $strip = false;
  311. $i = $j;
  312. break;
  313. }
  314. }
  315. }
  316. }
  317. $compiled_content = '';
  318. $tag_guard = '%%%SMARTYOTG' . md5(uniqid(rand(), true)) . '%%%';
  319. /* Interleave the compiled contents and text blocks to get the final result. */
  320. for ($i = 0, $for_max = count($compiled_tags); $i < $for_max; $i++) {
  321. if ($compiled_tags[$i] == '') {
  322. // tag result empty, remove first newline from following text block
  323. $text_blocks[$i+1] = preg_replace('~^(\r\n|\r|\n)~', '', $text_blocks[$i+1]);
  324. }
  325. // replace legit PHP tags with placeholder
  326. $text_blocks[$i] = str_replace('<?', $tag_guard, $text_blocks[$i]);
  327. $compiled_tags[$i] = str_replace('<?', $tag_guard, $compiled_tags[$i]);
  328. $compiled_content .= $text_blocks[$i] . $compiled_tags[$i];
  329. }
  330. $compiled_content .= str_replace('<?', $tag_guard, $text_blocks[$i]);
  331. // escape php tags created by interleaving
  332. $compiled_content = str_replace('<?', "<?php echo '<?' ?>\n", $compiled_content);
  333. $compiled_content = preg_replace("~(?<!')language\s*=\s*[\"\']?\s*php\s*[\"\']?~", "<?php echo 'language=php' ?>\n", $compiled_content);
  334. // recover legit tags
  335. $compiled_content = str_replace($tag_guard, '<?', $compiled_content);
  336. // remove \n from the end of the file, if any
  337. if (strlen($compiled_content) && (substr($compiled_content, -1) == "\n") ) {
  338. $compiled_content = substr($compiled_content, 0, -1);
  339. }
  340. if (!empty($this->_cache_serial)) {
  341. $compiled_content = "<?php \$this->_cache_serials['".$this->_cache_include."'] = '".$this->_cache_serial."'; ?>" . $compiled_content;
  342. }
  343. // run compiled template through postfilter functions
  344. if (count($this->_plugins['postfilter']) > 0) {
  345. foreach ($this->_plugins['postfilter'] as $filter_name => $postfilter) {
  346. if ($postfilter === false) continue;
  347. if ($postfilter[3] || is_callable($postfilter[0])) {
  348. $compiled_content = call_user_func_array($postfilter[0],
  349. array($compiled_content, &$this));
  350. $this->_plugins['postfilter'][$filter_name][3] = true;
  351. } else {
  352. $this->_trigger_fatal_error("Smarty plugin error: postfilter '$filter_name' is not implemented");
  353. }
  354. }
  355. }
  356. // put header at the top of the compiled template
  357. $template_header = "<?php /* Smarty version ".$this->_version.", created on ".strftime("%Y-%m-%d %H:%M:%S")."\n";
  358. $template_header .= " compiled from ".strtr(urlencode($resource_name), array('%2F'=>'/', '%3A'=>':'))." */ ?>\n";
  359. /* Emit code to load needed plugins. */
  360. $this->_plugins_code = '';
  361. if (count($this->_plugin_info)) {
  362. $_plugins_params = "array('plugins' => array(";
  363. foreach ($this->_plugin_info as $plugin_type => $plugins) {
  364. foreach ($plugins as $plugin_name => $plugin_info) {
  365. $_plugins_params .= "array('$plugin_type', '$plugin_name', '" . strtr($plugin_info[0], array("'" => "\\'", "\\" => "\\\\")) . "', $plugin_info[1], ";
  366. $_plugins_params .= $plugin_info[2] ? 'true),' : 'false),';
  367. }
  368. }
  369. $_plugins_params .= '))';
  370. $plugins_code = "<?php require_once(SMARTY_CORE_DIR . 'core.load_plugins.php');\nsmarty_core_load_plugins($_plugins_params, \$this); ?>\n";
  371. $template_header .= $plugins_code;
  372. $this->_plugin_info = array();
  373. $this->_plugins_code = $plugins_code;
  374. }
  375. if ($this->_init_smarty_vars) {
  376. $template_header .= "<?php require_once(SMARTY_CORE_DIR . 'core.assign_smarty_interface.php');\nsmarty_core_assign_smarty_interface(null, \$this); ?>\n";
  377. $this->_init_smarty_vars = false;
  378. }
  379. $compiled_content = $template_header . $compiled_content;
  380. return true;
  381. }
  382. /**
  383. * Compile a template tag
  384. *
  385. * @param string $template_tag
  386. * @return string
  387. */
  388. function _compile_tag($template_tag)
  389. {
  390. /* Matched comment. */
  391. if (substr($template_tag, 0, 1) == '*' && substr($template_tag, -1) == '*')
  392. return '';
  393. /* Split tag into two three parts: command, command modifiers and the arguments. */
  394. if(! preg_match('~^(?:(' . $this->_num_const_regexp . '|' . $this->_obj_call_regexp . '|' . $this->_var_regexp
  395. . '|\/?' . $this->_reg_obj_regexp . '|\/?' . $this->_func_regexp . ')(' . $this->_mod_regexp . '*))
  396. (?:\s+(.*))?$
  397. ~xs', $template_tag, $match)) {
  398. $this->_syntax_error("unrecognized tag: $template_tag", E_USER_ERROR, __FILE__, __LINE__);
  399. }
  400. $tag_command = $match[1];
  401. $tag_modifier = isset($match[2]) ? $match[2] : null;
  402. $tag_args = isset($match[3]) ? $match[3] : null;
  403. if (preg_match('~^' . $this->_num_const_regexp . '|' . $this->_obj_call_regexp . '|' . $this->_var_regexp . '$~', $tag_command)) {
  404. /* tag name is a variable or object */
  405. $_return = $this->_parse_var_props($tag_command . $tag_modifier);
  406. return "<?php echo $_return; ?>" . $this->_additional_newline;
  407. }
  408. /* If the tag name is a registered object, we process it. */
  409. if (preg_match('~^\/?' . $this->_reg_obj_regexp . '$~', $tag_command)) {
  410. return $this->_compile_registered_object_tag($tag_command, $this->_parse_attrs($tag_args), $tag_modifier);
  411. }
  412. switch ($tag_command) {
  413. case 'include':
  414. return $this->_compile_include_tag($tag_args);
  415. case 'include_php':
  416. return $this->_compile_include_php_tag($tag_args);
  417. case 'if':
  418. $this->_push_tag('if');
  419. return $this->_compile_if_tag($tag_args);
  420. case 'else':
  421. list($_open_tag) = end($this->_tag_stack);
  422. if ($_open_tag != 'if' && $_open_tag != 'elseif')
  423. $this->_syntax_error('unexpected {else}', E_USER_ERROR, __FILE__, __LINE__);
  424. else
  425. $this->_push_tag('else');
  426. return '<?php else: ?>';
  427. case 'elseif':
  428. list($_open_tag) = end($this->_tag_stack);
  429. if ($_open_tag != 'if' && $_open_tag != 'elseif')
  430. $this->_syntax_error('unexpected {elseif}', E_USER_ERROR, __FILE__, __LINE__);
  431. if ($_open_tag == 'if')
  432. $this->_push_tag('elseif');
  433. return $this->_compile_if_tag($tag_args, true);
  434. case '/if':
  435. $this->_pop_tag('if');
  436. return '<?php endif; ?>';
  437. case 'capture':
  438. return $this->_compile_capture_tag(true, $tag_args);
  439. case '/capture':
  440. return $this->_compile_capture_tag(false);
  441. case 'ldelim':
  442. return $this->left_delimiter;
  443. case 'rdelim':
  444. return $this->right_delimiter;
  445. case 'section':
  446. $this->_push_tag('section');
  447. return $this->_compile_section_start($tag_args);
  448. case 'sectionelse':
  449. $this->_push_tag('sectionelse');
  450. return "<?php endfor; else: ?>";
  451. break;
  452. case '/section':
  453. $_open_tag = $this->_pop_tag('section');
  454. if ($_open_tag == 'sectionelse')
  455. return "<?php endif; ?>";
  456. else
  457. return "<?php endfor; endif; ?>";
  458. case 'foreach':
  459. $this->_push_tag('foreach');
  460. return $this->_compile_foreach_start($tag_args);
  461. break;
  462. case 'foreachelse':
  463. $this->_push_tag('foreachelse');
  464. return "<?php endforeach; else: ?>";
  465. case '/foreach':
  466. $_open_tag = $this->_pop_tag('foreach');
  467. if ($_open_tag == 'foreachelse')
  468. return "<?php endif; unset(\$_from); ?>";
  469. else
  470. return "<?php endforeach; endif; unset(\$_from); ?>";
  471. break;
  472. case 'strip':
  473. case '/strip':
  474. if (substr($tag_command, 0, 1)=='/') {
  475. $this->_pop_tag('strip');
  476. if (--$this->_strip_depth==0) { /* outermost closing {/strip} */
  477. $this->_additional_newline = "\n";
  478. return '{' . $tag_command . '}';
  479. }
  480. } else {
  481. $this->_push_tag('strip');
  482. if ($this->_strip_depth++==0) { /* outermost opening {strip} */
  483. $this->_additional_newline = "";
  484. return '{' . $tag_command . '}';
  485. }
  486. }
  487. return '';
  488. case 'php':
  489. /* handle folded tags replaced by {php} */
  490. list(, $block) = each($this->_folded_blocks);
  491. $this->_current_line_no += substr_count($block[0], "\n");
  492. /* the number of matched elements in the regexp in _compile_file()
  493. determins the type of folded tag that was found */
  494. switch (count($block)) {
  495. case 2: /* comment */
  496. return '';
  497. case 3: /* literal */
  498. return "<?php echo '" . strtr($block[2], array("'"=>"\'", "\\"=>"\\\\")) . "'; ?>" . $this->_additional_newline;
  499. case 4: /* php */
  500. if ($this->security && !$this->security_settings['PHP_TAGS']) {
  501. $this->_syntax_error("(secure mode) php tags not permitted", E_USER_WARNING, __FILE__, __LINE__);
  502. return;
  503. }
  504. return '<?php ' . $block[3] .' ?>';
  505. }
  506. break;
  507. case 'insert':
  508. return $this->_compile_insert_tag($tag_args);
  509. default:
  510. if ($this->_compile_compiler_tag($tag_command, $tag_args, $output)) {
  511. return $output;
  512. } else if ($this->_compile_block_tag($tag_command, $tag_args, $tag_modifier, $output)) {
  513. return $output;
  514. } else if ($this->_compile_custom_tag($tag_command, $tag_args, $tag_modifier, $output)) {
  515. return $output;
  516. } else {
  517. $this->_syntax_error("unrecognized tag '$tag_command'", E_USER_ERROR, __FILE__, __LINE__);
  518. }
  519. }
  520. }
  521. /**
  522. * compile the custom compiler tag
  523. *
  524. * sets $output to the compiled custom compiler tag
  525. * @param string $tag_command
  526. * @param string $tag_args
  527. * @param string $output
  528. * @return boolean
  529. */
  530. function _compile_compiler_tag($tag_command, $tag_args, &$output)
  531. {
  532. $found = false;
  533. $have_function = true;
  534. /*
  535. * First we check if the compiler function has already been registered
  536. * or loaded from a plugin file.
  537. */
  538. if (isset($this->_plugins['compiler'][$tag_command])) {
  539. $found = true;
  540. $plugin_func = $this->_plugins['compiler'][$tag_command][0];
  541. if (!is_callable($plugin_func)) {
  542. $message = "compiler function '$tag_command' is not implemented";
  543. $have_function = false;
  544. }
  545. }
  546. /*
  547. * Otherwise we need to load plugin file and look for the function
  548. * inside it.
  549. */
  550. else if ($plugin_file = $this->_get_plugin_filepath('compiler', $tag_command)) {
  551. $found = true;
  552. include_once $plugin_file;
  553. $plugin_func = 'smarty_compiler_' . $tag_command;
  554. if (!is_callable($plugin_func)) {
  555. $message = "plugin function $plugin_func() not found in $plugin_file\n";
  556. $have_function = false;
  557. } else {
  558. $this->_plugins['compiler'][$tag_command] = array($plugin_func, null, null, null, true);
  559. }
  560. }
  561. /*
  562. * True return value means that we either found a plugin or a
  563. * dynamically registered function. False means that we didn't and the
  564. * compiler should now emit code to load custom function plugin for this
  565. * tag.
  566. */
  567. if ($found) {
  568. if ($have_function) {
  569. $output = call_user_func_array($plugin_func, array($tag_args, &$this));
  570. if($output != '') {
  571. $output = '<?php ' . $this->_push_cacheable_state('compiler', $tag_command)
  572. . $output
  573. . $this->_pop_cacheable_state('compiler', $tag_command) . ' ?>';
  574. }
  575. } else {
  576. $this->_syntax_error($message, E_USER_WARNING, __FILE__, __LINE__);
  577. }
  578. return true;
  579. } else {
  580. return false;
  581. }
  582. }
  583. /**
  584. * compile block function tag
  585. *
  586. * sets $output to compiled block function tag
  587. * @param string $tag_command
  588. * @param string $tag_args
  589. * @param string $tag_modifier
  590. * @param string $output
  591. * @return boolean
  592. */
  593. function _compile_block_tag($tag_command, $tag_args, $tag_modifier, &$output)
  594. {
  595. if (substr($tag_command, 0, 1) == '/') {
  596. $start_tag = false;
  597. $tag_command = substr($tag_command, 1);
  598. } else
  599. $start_tag = true;
  600. $found = false;
  601. $have_function = true;
  602. /*
  603. * First we check if the block function has already been registered
  604. * or loaded from a plugin file.
  605. */
  606. if (isset($this->_plugins['block'][$tag_command])) {
  607. $found = true;
  608. $plugin_func = $this->_plugins['block'][$tag_command][0];
  609. if (!is_callable($plugin_func)) {
  610. $message = "block function '$tag_command' is not implemented";
  611. $have_function = false;
  612. }
  613. }
  614. /*
  615. * Otherwise we need to load plugin file and look for the function
  616. * inside it.
  617. */
  618. else if ($plugin_file = $this->_get_plugin_filepath('block', $tag_command)) {
  619. $found = true;
  620. include_once $plugin_file;
  621. $plugin_func = 'smarty_block_' . $tag_command;
  622. if (!function_exists($plugin_func)) {
  623. $message = "plugin function $plugin_func() not found in $plugin_file\n";
  624. $have_function = false;
  625. } else {
  626. $this->_plugins['block'][$tag_command] = array($plugin_func, null, null, null, true);
  627. }
  628. }
  629. if (!$found) {
  630. return false;
  631. } else if (!$have_function) {
  632. $this->_syntax_error($message, E_USER_WARNING, __FILE__, __LINE__);
  633. return true;
  634. }
  635. /*
  636. * Even though we've located the plugin function, compilation
  637. * happens only once, so the plugin will still need to be loaded
  638. * at runtime for future requests.
  639. */
  640. $this->_add_plugin('block', $tag_command);
  641. if ($start_tag)
  642. $this->_push_tag($tag_command);
  643. else
  644. $this->_pop_tag($tag_command);
  645. if ($start_tag) {
  646. $output = '<?php ' . $this->_push_cacheable_state('block', $tag_command);
  647. $attrs = $this->_parse_attrs($tag_args);
  648. $_cache_attrs='';
  649. $arg_list = $this->_compile_arg_list('block', $tag_command, $attrs, $_cache_attrs);
  650. $output .= "$_cache_attrs\$this->_tag_stack[] = array('$tag_command', array(".implode(',', $arg_list).')); ';
  651. $output .= '$_block_repeat=true;' . $this->_compile_plugin_call('block', $tag_command).'($this->_tag_stack[count($this->_tag_stack)-1][1], null, $this, $_block_repeat);';
  652. $output .= 'while ($_block_repeat) { ob_start(); ?>';
  653. } else {
  654. $output = '<?php $_block_content = ob_get_contents(); ob_end_clean(); ';
  655. $_out_tag_text = $this->_compile_plugin_call('block', $tag_command).'($this->_tag_stack[count($this->_tag_stack)-1][1], $_block_content, $this, $_block_repeat)';
  656. if ($tag_modifier != '') {
  657. $this->_parse_modifiers($_out_tag_text, $tag_modifier);
  658. }
  659. $output .= '$_block_repeat=false;echo ' . $_out_tag_text . '; } ';
  660. $output .= " array_pop(\$this->_tag_stack); " . $this->_pop_cacheable_state('block', $tag_command) . '?>';
  661. }
  662. return true;
  663. }
  664. /**
  665. * compile custom function tag
  666. *
  667. * @param string $tag_command
  668. * @param string $tag_args
  669. * @param string $tag_modifier
  670. * @return string
  671. */
  672. function _compile_custom_tag($tag_command, $tag_args, $tag_modifier, &$output)
  673. {
  674. $found = false;
  675. $have_function = true;
  676. /*
  677. * First we check if the custom function has already been registered
  678. * or loaded from a plugin file.
  679. */
  680. if (isset($this->_plugins['function'][$tag_command])) {
  681. $found = true;
  682. $plugin_func = $this->_plugins['function'][$tag_command][0];
  683. if (!is_callable($plugin_func)) {
  684. $message = "custom function '$tag_command' is not implemented";
  685. $have_function = false;
  686. }
  687. }
  688. /*
  689. * Otherwise we need to load plugin file and look for the function
  690. * inside it.
  691. */
  692. else if ($plugin_file = $this->_get_plugin_filepath('function', $tag_command)) {
  693. $found = true;
  694. include_once $plugin_file;
  695. $plugin_func = 'smarty_function_' . $tag_command;
  696. if (!function_exists($plugin_func)) {
  697. $message = "plugin function $plugin_func() not found in $plugin_file\n";
  698. $have_function = false;
  699. } else {
  700. $this->_plugins['function'][$tag_command] = array($plugin_func, null, null, null, true);
  701. }
  702. }
  703. if (!$found) {
  704. return false;
  705. } else if (!$have_function) {
  706. $this->_syntax_error($message, E_USER_WARNING, __FILE__, __LINE__);
  707. return true;
  708. }
  709. /* declare plugin to be loaded on display of the template that
  710. we compile right now */
  711. $this->_add_plugin('function', $tag_command);
  712. $_cacheable_state = $this->_push_cacheable_state('function', $tag_command);
  713. $attrs = $this->_parse_attrs($tag_args);
  714. $_cache_attrs = '';
  715. $arg_list = $this->_compile_arg_list('function', $tag_command, $attrs, $_cache_attrs);
  716. $output = $this->_compile_plugin_call('function', $tag_command).'(array('.implode(',', $arg_list)."), \$this)";
  717. if($tag_modifier != '') {
  718. $this->_parse_modifiers($output, $tag_modifier);
  719. }
  720. if($output != '') {
  721. $output = '<?php ' . $_cacheable_state . $_cache_attrs . 'echo ' . $output . ';'
  722. . $this->_pop_cacheable_state('function', $tag_command) . "?>" . $this->_additional_newline;
  723. }
  724. return true;
  725. }
  726. /**
  727. * compile a registered object tag
  728. *
  729. * @param string $tag_command
  730. * @param array $attrs
  731. * @param string $tag_modifier
  732. * @return string
  733. */
  734. function _compile_registered_object_tag($tag_command, $attrs, $tag_modifier)
  735. {
  736. if (substr($tag_command, 0, 1) == '/') {
  737. $start_tag = false;
  738. $tag_command = substr($tag_command, 1);
  739. } else {
  740. $start_tag = true;
  741. }
  742. list($object, $obj_comp) = explode('->', $tag_command);
  743. $arg_list = array();
  744. if(count($attrs)) {
  745. $_assign_var = false;
  746. foreach ($attrs as $arg_name => $arg_value) {
  747. if($arg_name == 'assign') {
  748. $_assign_var = $arg_value;
  749. unset($attrs['assign']);
  750. continue;
  751. }
  752. if (is_bool($arg_value))
  753. $arg_value = $arg_value ? 'true' : 'false';
  754. $arg_list[] = "'$arg_name' => $arg_value";
  755. }
  756. }
  757. if($this->_reg_objects[$object][2]) {
  758. // smarty object argument format
  759. $args = "array(".implode(',', (array)$arg_list)."), \$this";
  760. } else {
  761. // traditional argument format
  762. $args = implode(',', array_values($attrs));
  763. if (empty($args)) {
  764. $args = '';
  765. }
  766. }
  767. $prefix = '';
  768. $postfix = '';
  769. $newline = '';
  770. if(!is_object($this->_reg_objects[$object][0])) {
  771. $this->_trigger_fatal_error("registered '$object' is not an object" , $this->_current_file, $this->_current_line_no, __FILE__, __LINE__);
  772. } elseif(!empty($this->_reg_objects[$object][1]) && !in_array($obj_comp, $this->_reg_objects[$object][1])) {
  773. $this->_trigger_fatal_error("'$obj_comp' is not a registered component of object '$object'", $this->_current_file, $this->_current_line_no, __FILE__, __LINE__);
  774. } elseif(method_exists($this->_reg_objects[$object][0], $obj_comp)) {
  775. // method
  776. if(in_array($obj_comp, $this->_reg_objects[$object][3])) {
  777. // block method
  778. if ($start_tag) {
  779. $prefix = "\$this->_tag_stack[] = array('$obj_comp', $args); ";
  780. $prefix .= "\$_block_repeat=true; \$this->_reg_objects['$object'][0]->$obj_comp(\$this->_tag_stack[count(\$this->_tag_stack)-1][1], null, \$this, \$_block_repeat); ";
  781. $prefix .= "while (\$_block_repeat) { ob_start();";
  782. $return = null;
  783. $postfix = '';
  784. } else {
  785. $prefix = "\$_obj_block_content = ob_get_contents(); ob_end_clean(); \$_block_repeat=false;";
  786. $return = "\$this->_reg_objects['$object'][0]->$obj_comp(\$this->_tag_stack[count(\$this->_tag_stack)-1][1], \$_obj_block_content, \$this, \$_block_repeat)";
  787. $postfix = "} array_pop(\$this->_tag_stack);";
  788. }
  789. } else {
  790. // non-block method
  791. $return = "\$this->_reg_objects['$object'][0]->$obj_comp($args)";
  792. }
  793. } else {
  794. // property
  795. $return = "\$this->_reg_objects['$object'][0]->$obj_comp";
  796. }
  797. if($return != null) {
  798. if($tag_modifier != '') {
  799. $this->_parse_modifiers($return, $tag_modifier);
  800. }
  801. if(!empty($_assign_var)) {
  802. $output = "\$this->assign('" . $this->_dequote($_assign_var) ."', $return);";
  803. } else {
  804. $output = 'echo ' . $return . ';';
  805. $newline = $this->_additional_newline;
  806. }
  807. } else {
  808. $output = '';
  809. }
  810. return '<?php ' . $prefix . $output . $postfix . "?>" . $newline;
  811. }
  812. /**
  813. * Compile {insert ...} tag
  814. *
  815. * @param string $tag_args
  816. * @return string
  817. */
  818. function _compile_insert_tag($tag_args)
  819. {
  820. $attrs = $this->_parse_attrs($tag_args);
  821. $name = $this->_dequote($attrs['name']);
  822. if (empty($name)) {
  823. return $this->_syntax_error("missing insert name", E_USER_ERROR, __FILE__, __LINE__);
  824. }
  825. if (!preg_match('~^\w+$~', $name)) {
  826. return $this->_syntax_error("'insert: 'name' must be an insert function name", E_USER_ERROR, __FILE__, __LINE__);
  827. }
  828. if (!empty($attrs['script'])) {
  829. $delayed_loading = true;
  830. } else {
  831. $delayed_loading = false;
  832. }
  833. foreach ($attrs as $arg_name => $arg_value) {
  834. if (is_bool($arg_value))
  835. $arg_value = $arg_value ? 'true' : 'false';
  836. $arg_list[] = "'$arg_name' => $arg_value";
  837. }
  838. $this->_add_plugin('insert', $name, $delayed_loading);
  839. $_params = "array('args' => array(".implode(', ', (array)$arg_list)."))";
  840. return "<?php require_once(SMARTY_CORE_DIR . 'core.run_insert_handler.php');\necho smarty_core_run_insert_handler($_params, \$this); ?>" . $this->_additional_newline;
  841. }
  842. /**
  843. * Compile {include ...} tag
  844. *
  845. * @param string $tag_args
  846. * @return string
  847. */
  848. function _compile_include_tag($tag_args)
  849. {
  850. $attrs = $this->_parse_attrs($tag_args);
  851. $arg_list = array();
  852. if (empty($attrs['file'])) {
  853. $this->_syntax_error("missing 'file' attribute in include tag", E_USER_ERROR, __FILE__, __LINE__);
  854. }
  855. foreach ($attrs as $arg_name => $arg_value) {
  856. if ($arg_name == 'file') {
  857. $include_file = $arg_value;
  858. continue;
  859. } else if ($arg_name == 'assign') {
  860. $assign_var = $arg_value;
  861. continue;
  862. }
  863. if (is_bool($arg_value))
  864. $arg_value = $arg_value ? 'true' : 'false';
  865. $arg_list[] = "'$arg_name' => $arg_value";
  866. }
  867. $output = '<?php ';
  868. if (isset($assign_var)) {
  869. $output .= "ob_start();\n";
  870. }
  871. $output .=
  872. "\$_smarty_tpl_vars = \$this->_tpl_vars;\n";
  873. $_params = "array('smarty_include_tpl_file' => " . $include_file . ", 'smarty_include_vars' => array(".implode(',', (array)$arg_list)."))";
  874. $output .= "\$this->_smarty_include($_params);\n" .
  875. "\$this->_tpl_vars = \$_smarty_tpl_vars;\n" .
  876. "unset(\$_smarty_tpl_vars);\n";
  877. if (isset($assign_var)) {
  878. $output .= "\$this->assign(" . $assign_var . ", ob_get_contents()); ob_end_clean();\n";
  879. }
  880. $output .= ' ?>';
  881. return $output;
  882. }
  883. /**
  884. * Compile {include ...} tag
  885. *
  886. * @param string $tag_args
  887. * @return string
  888. */
  889. function _compile_include_php_tag($tag_args)
  890. {
  891. $attrs = $this->_parse_attrs($tag_args);
  892. if (empty($attrs['file'])) {
  893. $this->_syntax_error("missing 'file' attribute in include_php tag", E_USER_ERROR, __FILE__, __LINE__);
  894. }
  895. $assign_var = (empty($attrs['assign'])) ? '' : $this->_dequote($attrs['assign']);
  896. $once_var = (empty($attrs['once']) || $attrs['once']=='false') ? 'false' : 'true';
  897. $arg_list = array();
  898. foreach($attrs as $arg_name => $arg_value) {
  899. if($arg_name != 'file' AND $arg_name != 'once' AND $arg_name != 'assign') {
  900. if(is_bool($arg_value))
  901. $arg_value = $arg_value ? 'true' : 'false';
  902. $arg_list[] = "'$arg_name' => $arg_value";
  903. }
  904. }
  905. $_params = "array('smarty_file' => " . $attrs['file'] . ", 'smarty_assign' => '$assign_var', 'smarty_once' => $once_var, 'smarty_include_vars' => array(".implode(',', $arg_list)."))";
  906. return "<?php require_once(SMARTY_CORE_DIR . 'core.smarty_include_php.php');\nsmarty_core_smarty_include_php($_params, \$this); ?>" . $this->_additional_newline;
  907. }
  908. /**
  909. * Compile {section ...} tag
  910. *
  911. * @param string $tag_args
  912. * @return string
  913. */
  914. function _compile_section_start($tag_args)
  915. {
  916. $attrs = $this->_parse_attrs($tag_args);
  917. $arg_list = array();
  918. $output = '<?php ';
  919. $section_name = $attrs['name'];
  920. if (empty($section_name)) {
  921. $this->_syntax_error("missing section name", E_USER_ERROR, __FILE__, __LINE__);
  922. }
  923. $output .= "unset(\$this->_sections[$section_name]);\n";
  924. $section_props = "\$this->_sections[$section_name]";
  925. foreach ($attrs as $attr_name => $attr_value) {
  926. switch ($attr_name) {
  927. case 'loop':
  928. $output .= "{$section_props}['loop'] = is_array(\$_loop=$attr_value) ? count(\$_loop) : max(0, (int)\$_loop); unset(\$_loop);\n";
  929. break;
  930. case 'show':
  931. if (is_bool($attr_value))
  932. $show_attr_value = $attr_value ? 'true' : 'false';
  933. else
  934. $show_attr_value = "(bool)$attr_value";
  935. $output .= "{$section_props}['show'] = $show_attr_value;\n";
  936. break;
  937. case 'name':
  938. $output .= "{$section_props}['$attr_name'] = $attr_value;\n";
  939. break;
  940. case 'max':
  941. case 'start':
  942. $output .= "{$section_props}['$attr_name'] = (int)$attr_value;\n";
  943. break;
  944. case 'step':
  945. $output .= "{$section_props}['$attr_name'] = ((int)$attr_value) == 0 ? 1 : (int)$attr_value;\n";
  946. break;
  947. default:
  948. $this->_syntax_error("unknown section attribute - '$attr_name'", E_USER_ERROR, __FILE__, __LINE__);
  949. break;
  950. }
  951. }
  952. if (!isset($attrs['show']))
  953. $output .= "{$section_props}['show'] = true;\n";
  954. if (!isset($attrs['loop']))
  955. $output .= "{$section_props}['loop'] = 1;\n";
  956. if (!isset($attrs['max']))
  957. $output .= "{$section_props}['max'] = {$section_props}['loop'];\n";
  958. else
  959. $output .= "if ({$section_props}['max'] < 0)\n" .
  960. " {$section_props}['max'] = {$section_props}['loop'];\n";
  961. if (!isset($attrs['step']))
  962. $output .= "{$section_props}['step'] = 1;\n";
  963. if (!isset($attrs['start']))
  964. $output .= "{$section_props}['start'] = {$section_props}['step'] > 0 ? 0 : {$section_props}['loop']-1;\n";
  965. else {
  966. $output .= "if ({$section_props}['start'] < 0)\n" .
  967. " {$section_props}['start'] = max({$section_props}['step'] > 0 ? 0 : -1, {$section_props}['loop'] + {$section_props}['start']);\n" .
  968. "else\n" .
  969. " {$section_props}['start'] = min({$section_props}['start'], {$section_props}['step'] > 0 ? {$section_props}['loop'] : {$section_props}['loop']-1);\n";
  970. }
  971. $output .= "if ({$section_props}['show']) {\n";
  972. if (!isset($attrs['start']) && !isset($attrs['step']) && !isset($attrs['max'])) {
  973. $output .= " {$section_props}['total'] = {$section_props}['loop'];\n";
  974. } else {
  975. $output .= " {$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";
  976. }
  977. $output .= " if ({$section_props}['total'] == 0)\n" .
  978. " {$section_props}['show'] = false;\n" .
  979. "} else\n" .
  980. " {$section_props}['total'] = 0;\n";
  981. $output .= "if ({$section_props}['show']):\n";
  982. $output .= "
  983. for ({$section_props}['index'] = {$section_props}['start'], {$section_props}['iteration'] = 1;
  984. {$section_props}['iteration'] <= {$section_props}['total'];
  985. {$section_props}['index'] += {$section_props}['step'], {$section_props}['iteration']++):\n";
  986. $output .= "{$section_props}['rownum'] = {$section_props}['iteration'];\n";
  987. $output .= "{$section_props}['index_prev'] = {$section_props}['index'] - {$section_props}['step'];\n";
  988. $output .= "{$section_props}['index_next'] = {$section_props}['index'] + {$section_props}['step'];\n";
  989. $output .= "{$section_props}['first'] = ({$section_props}['iteration'] == 1);\n";
  990. $output .= "{$section_props}['last'] = ({$section_props}['iteration'] == {$section_props}['total']);\n";
  991. $output .= "?>";
  992. return $output;
  993. }
  994. /**
  995. * Compile {foreach ...} tag.
  996. *
  997. * @param string $tag_args
  998. * @return string
  999. */
  1000. function _compile_foreach_start($tag_args)
  1001. {
  1002. $attrs = $this->_parse_attrs($tag_args);
  1003. $arg_list = array();
  1004. if (empty($attrs['from'])) {
  1005. return $this->_syntax_error("foreach: missing 'from' attribute", E_USER_ERROR, __FILE__, __LINE__);
  1006. }
  1007. $from = $attrs['from'];
  1008. if (empty($attrs['item'])) {
  1009. return $this->_syntax_error("foreach: missing 'item' attribute", E_USER_ERROR, __FILE__, __LINE__);
  1010. }
  1011. $item = $this->_dequote($attrs['item']);
  1012. if (!preg_match('~^\w+$~', $item)) {
  1013. return $this->_syntax_error("foreach: 'item' must be a variable name (literal string)", E_USER_ERROR, __FILE__, __LINE__);
  1014. }
  1015. if (isset($attrs['key'])) {
  1016. $key = $this->_dequote($attrs['key']);
  1017. if (!preg_match('~^\w+$~', $key)) {
  1018. return $this->_syntax_error("foreach: 'key' must to be a variable name (literal string)", E_USER_ERROR, __FILE__, __LINE__);
  1019. }
  1020. $key_part = "\$this->_tpl_vars['$key'] => ";
  1021. } else {
  1022. $key = null;
  1023. $key_part = '';
  1024. }
  1025. if (isset($attrs['name'])) {
  1026. $name = $attrs['name'];
  1027. } else {
  1028. $name = null;
  1029. }
  1030. $output = '<?php ';
  1031. $output .= "\$_from = $from; if (!is_array(\$_from) && !is_object(\$_from)) { settype(\$_from, 'array'); }";
  1032. if (isset($name)) {
  1033. $foreach_props = "\$this->_foreach[$name]";
  1034. $output .= "{$foreach_props} = array('total' => count(\$_from), 'iteration' => 0);\n";
  1035. $output .= "if ({$foreach_props}['total'] > 0):\n";
  1036. $output .= " foreach (\$_from as $key_part\$this->_tpl_vars['$item']):\n";
  1037. $output .= " {$foreach_props}['iteration']++;\n";
  1038. } else {
  1039. $outpu

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