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/source/libs/smarty/Smarty_Compiler.class.php

https://github.com/yfg2014/ddim
PHP | 2296 lines | 1547 code | 281 blank | 468 comment | 354 complexity | 1a45f0aedbc2a9728160dee31294cc77 MD5 | raw file
Possible License(s): LGPL-2.1, AGPL-1.0

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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 2.6.7
  24. * @copyright 2001-2005 New Digital Group, Inc.
  25. * @package Smarty
  26. */
  27. /* $Id: Smarty_Compiler.class.php,v 1.360 2005/02/03 14:41:33 mohrt Exp $ */
  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. $source_content = preg_replace($search.'e', "'"
  236. . $this->_quote_replace($this->left_delimiter) . 'php'
  237. . "' . str_repeat(\"\n\", substr_count('\\0', \"\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*[\"\']?php[\"\']?)~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. $strip = true;
  294. }
  295. if ($strip) {
  296. /* strip all $text_blocks before the next '/strip' */
  297. for ($j = $i + 1; $j < $for_max; $j++) {
  298. /* remove leading and trailing whitespaces of each line */
  299. $text_blocks[$j] = preg_replace('!\s+$|^\s+!m', '', $text_blocks[$j]);
  300. /* remove carriage return and newline between each line */
  301. $text_blocks[$j] = preg_replace('![\r\n]+!m', '', $text_blocks[$j]);
  302. $text_blocks[$j] = "<?php echo '" . strtr($text_blocks[$j], array("'"=>"\'", "\\"=>"\\\\")) . "'; ?>";
  303. if ($compiled_tags[$j] == '{/strip}') {
  304. $compiled_tags[$j] = "\n"; /* slurped by php, but necessary
  305. if a newline is following the closing strip-tag */
  306. $strip = false;
  307. $i = $j;
  308. break;
  309. }
  310. }
  311. }
  312. }
  313. $compiled_content = '';
  314. /* Interleave the compiled contents and text blocks to get the final result. */
  315. for ($i = 0, $for_max = count($compiled_tags); $i < $for_max; $i++) {
  316. if ($compiled_tags[$i] == '') {
  317. // tag result empty, remove first newline from following text block
  318. $text_blocks[$i+1] = preg_replace('~^(\r\n|\r|\n)~', '', $text_blocks[$i+1]);
  319. }
  320. $compiled_content .= $text_blocks[$i].$compiled_tags[$i];
  321. }
  322. $compiled_content .= $text_blocks[$i];
  323. // remove \n from the end of the file, if any
  324. if (($_len=strlen($compiled_content)) && ($compiled_content{$_len - 1} == "\n" )) {
  325. $compiled_content = substr($compiled_content, 0, -1);
  326. }
  327. if (!empty($this->_cache_serial)) {
  328. $compiled_content = "<?php \$this->_cache_serials['".$this->_cache_include."'] = '".$this->_cache_serial."'; ?>" . $compiled_content;
  329. }
  330. // remove unnecessary close/open tags
  331. $compiled_content = preg_replace('~\?>\n?<\?php~', '', $compiled_content);
  332. // run compiled template through postfilter functions
  333. if (count($this->_plugins['postfilter']) > 0) {
  334. foreach ($this->_plugins['postfilter'] as $filter_name => $postfilter) {
  335. if ($postfilter === false) continue;
  336. if ($postfilter[3] || is_callable($postfilter[0])) {
  337. $compiled_content = call_user_func_array($postfilter[0],
  338. array($compiled_content, &$this));
  339. $this->_plugins['postfilter'][$filter_name][3] = true;
  340. } else {
  341. $this->_trigger_fatal_error("Smarty plugin error: postfilter '$filter_name' is not implemented");
  342. }
  343. }
  344. }
  345. // put header at the top of the compiled template
  346. $template_header = "<?php /* Smarty version ".$this->_version.", created on ".strftime("%Y-%m-%d %H:%M:%S")."\n";
  347. $template_header .= " compiled from ".strtr(urlencode($resource_name), array('%2F'=>'/', '%3A'=>':'))." */ ?>\n";
  348. /* Emit code to load needed plugins. */
  349. $this->_plugins_code = '';
  350. if (count($this->_plugin_info)) {
  351. $_plugins_params = "array('plugins' => array(";
  352. foreach ($this->_plugin_info as $plugin_type => $plugins) {
  353. foreach ($plugins as $plugin_name => $plugin_info) {
  354. $_plugins_params .= "array('$plugin_type', '$plugin_name', '" . strtr($plugin_info[0], array("'" => "\\'", "\\" => "\\\\")) . "', $plugin_info[1], ";
  355. $_plugins_params .= $plugin_info[2] ? 'true),' : 'false),';
  356. }
  357. }
  358. $_plugins_params .= '))';
  359. $plugins_code = "<?php require_once(SMARTY_CORE_DIR . 'core.load_plugins.php');\nsmarty_core_load_plugins($_plugins_params, \$this); ?>\n";
  360. $template_header .= $plugins_code;
  361. $this->_plugin_info = array();
  362. $this->_plugins_code = $plugins_code;
  363. }
  364. if ($this->_init_smarty_vars) {
  365. $template_header .= "<?php require_once(SMARTY_CORE_DIR . 'core.assign_smarty_interface.php');\nsmarty_core_assign_smarty_interface(null, \$this); ?>\n";
  366. $this->_init_smarty_vars = false;
  367. }
  368. $compiled_content = $template_header . $compiled_content;
  369. return true;
  370. }
  371. /**
  372. * Compile a template tag
  373. *
  374. * @param string $template_tag
  375. * @return string
  376. */
  377. function _compile_tag($template_tag)
  378. {
  379. /* Matched comment. */
  380. if ($template_tag{0} == '*' && $template_tag{strlen($template_tag) - 1} == '*')
  381. return '';
  382. /* Split tag into two three parts: command, command modifiers and the arguments. */
  383. if(! preg_match('~^(?:(' . $this->_num_const_regexp . '|' . $this->_obj_call_regexp . '|' . $this->_var_regexp
  384. . '|\/?' . $this->_reg_obj_regexp . '|\/?' . $this->_func_regexp . ')(' . $this->_mod_regexp . '*))
  385. (?:\s+(.*))?$
  386. ~xs', $template_tag, $match)) {
  387. $this->_syntax_error("unrecognized tag: $template_tag", E_USER_ERROR, __FILE__, __LINE__);
  388. }
  389. $tag_command = $match[1];
  390. $tag_modifier = isset($match[2]) ? $match[2] : null;
  391. $tag_args = isset($match[3]) ? $match[3] : null;
  392. if (preg_match('~^' . $this->_num_const_regexp . '|' . $this->_obj_call_regexp . '|' . $this->_var_regexp . '$~', $tag_command)) {
  393. /* tag name is a variable or object */
  394. $_return = $this->_parse_var_props($tag_command . $tag_modifier);
  395. return "<?php echo $_return; ?>" . $this->_additional_newline;
  396. }
  397. /* If the tag name is a registered object, we process it. */
  398. if (preg_match('~^\/?' . $this->_reg_obj_regexp . '$~', $tag_command)) {
  399. return $this->_compile_registered_object_tag($tag_command, $this->_parse_attrs($tag_args), $tag_modifier);
  400. }
  401. switch ($tag_command) {
  402. case 'include':
  403. return $this->_compile_include_tag($tag_args);
  404. case 'include_php':
  405. return $this->_compile_include_php_tag($tag_args);
  406. case 'if':
  407. $this->_push_tag('if');
  408. return $this->_compile_if_tag($tag_args);
  409. case 'else':
  410. list($_open_tag) = end($this->_tag_stack);
  411. if ($_open_tag != 'if' && $_open_tag != 'elseif')
  412. $this->_syntax_error('unexpected {else}', E_USER_ERROR, __FILE__, __LINE__);
  413. else
  414. $this->_push_tag('else');
  415. return '<?php else: ?>';
  416. case 'elseif':
  417. list($_open_tag) = end($this->_tag_stack);
  418. if ($_open_tag != 'if' && $_open_tag != 'elseif')
  419. $this->_syntax_error('unexpected {elseif}', E_USER_ERROR, __FILE__, __LINE__);
  420. if ($_open_tag == 'if')
  421. $this->_push_tag('elseif');
  422. return $this->_compile_if_tag($tag_args, true);
  423. case '/if':
  424. $this->_pop_tag('if');
  425. return '<?php endif; ?>';
  426. case 'capture':
  427. return $this->_compile_capture_tag(true, $tag_args);
  428. case '/capture':
  429. return $this->_compile_capture_tag(false);
  430. case 'ldelim':
  431. return $this->left_delimiter;
  432. case 'rdelim':
  433. return $this->right_delimiter;
  434. case 'section':
  435. $this->_push_tag('section');
  436. return $this->_compile_section_start($tag_args);
  437. case 'sectionelse':
  438. $this->_push_tag('sectionelse');
  439. return "<?php endfor; else: ?>";
  440. break;
  441. case '/section':
  442. $_open_tag = $this->_pop_tag('section');
  443. if ($_open_tag == 'sectionelse')
  444. return "<?php endif; ?>";
  445. else
  446. return "<?php endfor; endif; ?>";
  447. case 'foreach':
  448. $this->_push_tag('foreach');
  449. return $this->_compile_foreach_start($tag_args);
  450. break;
  451. case 'foreachelse':
  452. $this->_push_tag('foreachelse');
  453. return "<?php endforeach; else: ?>";
  454. case '/foreach':
  455. $_open_tag = $this->_pop_tag('foreach');
  456. if ($_open_tag == 'foreachelse')
  457. return "<?php endif; unset(\$_from); ?>";
  458. else
  459. return "<?php endforeach; endif; unset(\$_from); ?>";
  460. break;
  461. case 'strip':
  462. case '/strip':
  463. if ($tag_command{0}=='/') {
  464. $this->_pop_tag('strip');
  465. if (--$this->_strip_depth==0) { /* outermost closing {/strip} */
  466. $this->_additional_newline = "\n";
  467. return $this->left_delimiter.$tag_command.$this->right_delimiter;
  468. }
  469. } else {
  470. $this->_push_tag('strip');
  471. if ($this->_strip_depth++==0) { /* outermost opening {strip} */
  472. $this->_additional_newline = "";
  473. return $this->left_delimiter.$tag_command.$this->right_delimiter;
  474. }
  475. }
  476. return '';
  477. case 'php':
  478. /* handle folded tags replaced by {php} */
  479. list(, $block) = each($this->_folded_blocks);
  480. $this->_current_line_no += substr_count($block[0], "\n");
  481. /* the number of matched elements in the regexp in _compile_file()
  482. determins the type of folded tag that was found */
  483. switch (count($block)) {
  484. case 2: /* comment */
  485. return '';
  486. case 3: /* literal */
  487. return "<?php echo '" . strtr($block[2], array("'"=>"\'", "\\"=>"\\\\")) . "'; ?>" . $this->_additional_newline;
  488. case 4: /* php */
  489. if ($this->security && !$this->security_settings['PHP_TAGS']) {
  490. $this->_syntax_error("(secure mode) php tags not permitted", E_USER_WARNING, __FILE__, __LINE__);
  491. return;
  492. }
  493. return '<?php ' . $block[3] .' ?>';
  494. }
  495. break;
  496. case 'insert':
  497. return $this->_compile_insert_tag($tag_args);
  498. default:
  499. if ($this->_compile_compiler_tag($tag_command, $tag_args, $output)) {
  500. return $output;
  501. } else if ($this->_compile_block_tag($tag_command, $tag_args, $tag_modifier, $output)) {
  502. return $output;
  503. } else if ($this->_compile_custom_tag($tag_command, $tag_args, $tag_modifier, $output)) {
  504. return $output;
  505. } else {
  506. $this->_syntax_error("unrecognized tag '$tag_command'", E_USER_ERROR, __FILE__, __LINE__);
  507. }
  508. }
  509. }
  510. /**
  511. * compile the custom compiler tag
  512. *
  513. * sets $output to the compiled custom compiler tag
  514. * @param string $tag_command
  515. * @param string $tag_args
  516. * @param string $output
  517. * @return boolean
  518. */
  519. function _compile_compiler_tag($tag_command, $tag_args, &$output)
  520. {
  521. $found = false;
  522. $have_function = true;
  523. /*
  524. * First we check if the compiler function has already been registered
  525. * or loaded from a plugin file.
  526. */
  527. if (isset($this->_plugins['compiler'][$tag_command])) {
  528. $found = true;
  529. $plugin_func = $this->_plugins['compiler'][$tag_command][0];
  530. if (!is_callable($plugin_func)) {
  531. $message = "compiler function '$tag_command' is not implemented";
  532. $have_function = false;
  533. }
  534. }
  535. /*
  536. * Otherwise we need to load plugin file and look for the function
  537. * inside it.
  538. */
  539. else if ($plugin_file = $this->_get_plugin_filepath('compiler', $tag_command)) {
  540. $found = true;
  541. include_once $plugin_file;
  542. $plugin_func = 'smarty_compiler_' . $tag_command;
  543. if (!is_callable($plugin_func)) {
  544. $message = "plugin function $plugin_func() not found in $plugin_file\n";
  545. $have_function = false;
  546. } else {
  547. $this->_plugins['compiler'][$tag_command] = array($plugin_func, null, null, null, true);
  548. }
  549. }
  550. /*
  551. * True return value means that we either found a plugin or a
  552. * dynamically registered function. False means that we didn't and the
  553. * compiler should now emit code to load custom function plugin for this
  554. * tag.
  555. */
  556. if ($found) {
  557. if ($have_function) {
  558. $output = call_user_func_array($plugin_func, array($tag_args, &$this));
  559. if($output != '') {
  560. $output = '<?php ' . $this->_push_cacheable_state('compiler', $tag_command)
  561. . $output
  562. . $this->_pop_cacheable_state('compiler', $tag_command) . ' ?>';
  563. }
  564. } else {
  565. $this->_syntax_error($message, E_USER_WARNING, __FILE__, __LINE__);
  566. }
  567. return true;
  568. } else {
  569. return false;
  570. }
  571. }
  572. /**
  573. * compile block function tag
  574. *
  575. * sets $output to compiled block function tag
  576. * @param string $tag_command
  577. * @param string $tag_args
  578. * @param string $tag_modifier
  579. * @param string $output
  580. * @return boolean
  581. */
  582. function _compile_block_tag($tag_command, $tag_args, $tag_modifier, &$output)
  583. {
  584. if ($tag_command{0} == '/') {
  585. $start_tag = false;
  586. $tag_command = substr($tag_command, 1);
  587. } else
  588. $start_tag = true;
  589. $found = false;
  590. $have_function = true;
  591. /*
  592. * First we check if the block function has already been registered
  593. * or loaded from a plugin file.
  594. */
  595. if (isset($this->_plugins['block'][$tag_command])) {
  596. $found = true;
  597. $plugin_func = $this->_plugins['block'][$tag_command][0];
  598. if (!is_callable($plugin_func)) {
  599. $message = "block function '$tag_command' is not implemented";
  600. $have_function = false;
  601. }
  602. }
  603. /*
  604. * Otherwise we need to load plugin file and look for the function
  605. * inside it.
  606. */
  607. else if ($plugin_file = $this->_get_plugin_filepath('block', $tag_command)) {
  608. $found = true;
  609. include_once $plugin_file;
  610. $plugin_func = 'smarty_block_' . $tag_command;
  611. if (!function_exists($plugin_func)) {
  612. $message = "plugin function $plugin_func() not found in $plugin_file\n";
  613. $have_function = false;
  614. } else {
  615. $this->_plugins['block'][$tag_command] = array($plugin_func, null, null, null, true);
  616. }
  617. }
  618. if (!$found) {
  619. return false;
  620. } else if (!$have_function) {
  621. $this->_syntax_error($message, E_USER_WARNING, __FILE__, __LINE__);
  622. return true;
  623. }
  624. /*
  625. * Even though we've located the plugin function, compilation
  626. * happens only once, so the plugin will still need to be loaded
  627. * at runtime for future requests.
  628. */
  629. $this->_add_plugin('block', $tag_command);
  630. if ($start_tag)
  631. $this->_push_tag($tag_command);
  632. else
  633. $this->_pop_tag($tag_command);
  634. if ($start_tag) {
  635. $output = '<?php ' . $this->_push_cacheable_state('block', $tag_command);
  636. $attrs = $this->_parse_attrs($tag_args);
  637. $arg_list = $this->_compile_arg_list('block', $tag_command, $attrs, $_cache_attrs='');
  638. $output .= "$_cache_attrs\$this->_tag_stack[] = array('$tag_command', array(".implode(',', $arg_list).')); ';
  639. $output .= $this->_compile_plugin_call('block', $tag_command).'($this->_tag_stack[count($this->_tag_stack)-1][1], null, $this, $_block_repeat=true);';
  640. $output .= 'while ($_block_repeat) { ob_start(); ?>';
  641. } else {
  642. $output = '<?php $_block_content = ob_get_contents(); ob_end_clean(); ';
  643. $_out_tag_text = $this->_compile_plugin_call('block', $tag_command).'($this->_tag_stack[count($this->_tag_stack)-1][1], $_block_content, $this, $_block_repeat=false)';
  644. if ($tag_modifier != '') {
  645. $this->_parse_modifiers($_out_tag_text, $tag_modifier);
  646. }
  647. $output .= 'echo '.$_out_tag_text.'; } ';
  648. $output .= " array_pop(\$this->_tag_stack); " . $this->_pop_cacheable_state('block', $tag_command) . '?>';
  649. }
  650. return true;
  651. }
  652. /**
  653. * compile custom function tag
  654. *
  655. * @param string $tag_command
  656. * @param string $tag_args
  657. * @param string $tag_modifier
  658. * @return string
  659. */
  660. function _compile_custom_tag($tag_command, $tag_args, $tag_modifier, &$output)
  661. {
  662. $found = false;
  663. $have_function = true;
  664. /*
  665. * First we check if the custom function has already been registered
  666. * or loaded from a plugin file.
  667. */
  668. if (isset($this->_plugins['function'][$tag_command])) {
  669. $found = true;
  670. $plugin_func = $this->_plugins['function'][$tag_command][0];
  671. if (!is_callable($plugin_func)) {
  672. $message = "custom function '$tag_command' is not implemented";
  673. $have_function = false;
  674. }
  675. }
  676. /*
  677. * Otherwise we need to load plugin file and look for the function
  678. * inside it.
  679. */
  680. else if ($plugin_file = $this->_get_plugin_filepath('function', $tag_command)) {
  681. $found = true;
  682. include_once $plugin_file;
  683. $plugin_func = 'smarty_function_' . $tag_command;
  684. if (!function_exists($plugin_func)) {
  685. $message = "plugin function $plugin_func() not found in $plugin_file\n";
  686. $have_function = false;
  687. } else {
  688. $this->_plugins['function'][$tag_command] = array($plugin_func, null, null, null, true);
  689. }
  690. }
  691. if (!$found) {
  692. return false;
  693. } else if (!$have_function) {
  694. $this->_syntax_error($message, E_USER_WARNING, __FILE__, __LINE__);
  695. return true;
  696. }
  697. /* declare plugin to be loaded on display of the template that
  698. we compile right now */
  699. $this->_add_plugin('function', $tag_command);
  700. $_cacheable_state = $this->_push_cacheable_state('function', $tag_command);
  701. $attrs = $this->_parse_attrs($tag_args);
  702. $arg_list = $this->_compile_arg_list('function', $tag_command, $attrs, $_cache_attrs='');
  703. $output = $this->_compile_plugin_call('function', $tag_command).'(array('.implode(',', $arg_list)."), \$this)";
  704. if($tag_modifier != '') {
  705. $this->_parse_modifiers($output, $tag_modifier);
  706. }
  707. if($output != '') {
  708. $output = '<?php ' . $_cacheable_state . $_cache_attrs . 'echo ' . $output . ';'
  709. . $this->_pop_cacheable_state('function', $tag_command) . "?>" . $this->_additional_newline;
  710. }
  711. return true;
  712. }
  713. /**
  714. * compile a registered object tag
  715. *
  716. * @param string $tag_command
  717. * @param array $attrs
  718. * @param string $tag_modifier
  719. * @return string
  720. */
  721. function _compile_registered_object_tag($tag_command, $attrs, $tag_modifier)
  722. {
  723. if ($tag_command{0} == '/') {
  724. $start_tag = false;
  725. $tag_command = substr($tag_command, 1);
  726. } else {
  727. $start_tag = true;
  728. }
  729. list($object, $obj_comp) = explode('->', $tag_command);
  730. $arg_list = array();
  731. if(count($attrs)) {
  732. $_assign_var = false;
  733. foreach ($attrs as $arg_name => $arg_value) {
  734. if($arg_name == 'assign') {
  735. $_assign_var = $arg_value;
  736. unset($attrs['assign']);
  737. continue;
  738. }
  739. if (is_bool($arg_value))
  740. $arg_value = $arg_value ? 'true' : 'false';
  741. $arg_list[] = "'$arg_name' => $arg_value";
  742. }
  743. }
  744. if($this->_reg_objects[$object][2]) {
  745. // smarty object argument format
  746. $args = "array(".implode(',', (array)$arg_list)."), \$this";
  747. } else {
  748. // traditional argument format
  749. $args = implode(',', array_values($attrs));
  750. if (empty($args)) {
  751. $args = 'null';
  752. }
  753. }
  754. $prefix = '';
  755. $postfix = '';
  756. $newline = '';
  757. if(!is_object($this->_reg_objects[$object][0])) {
  758. $this->_trigger_fatal_error("registered '$object' is not an object" , $this->_current_file, $this->_current_line_no, __FILE__, __LINE__);
  759. } elseif(!empty($this->_reg_objects[$object][1]) && !in_array($obj_comp, $this->_reg_objects[$object][1])) {
  760. $this->_trigger_fatal_error("'$obj_comp' is not a registered component of object '$object'", $this->_current_file, $this->_current_line_no, __FILE__, __LINE__);
  761. } elseif(method_exists($this->_reg_objects[$object][0], $obj_comp)) {
  762. // method
  763. if(in_array($obj_comp, $this->_reg_objects[$object][3])) {
  764. // block method
  765. if ($start_tag) {
  766. $prefix = "\$this->_tag_stack[] = array('$obj_comp', $args); ";
  767. $prefix .= "\$this->_reg_objects['$object'][0]->$obj_comp(\$this->_tag_stack[count(\$this->_tag_stack)-1][1], null, \$this, \$_block_repeat=true); ";
  768. $prefix .= "while (\$_block_repeat) { ob_start();";
  769. $return = null;
  770. $postfix = '';
  771. } else {
  772. $prefix = "\$_obj_block_content = ob_get_contents(); ob_end_clean(); ";
  773. $return = "\$this->_reg_objects['$object'][0]->$obj_comp(\$this->_tag_stack[count(\$this->_tag_stack)-1][1], \$_obj_block_content, \$this, \$_block_repeat=false)";
  774. $postfix = "} array_pop(\$this->_tag_stack);";
  775. }
  776. } else {
  777. // non-block method
  778. $return = "\$this->_reg_objects['$object'][0]->$obj_comp($args)";
  779. }
  780. } else {
  781. // property
  782. $return = "\$this->_reg_objects['$object'][0]->$obj_comp";
  783. }
  784. if($return != null) {
  785. if($tag_modifier != '') {
  786. $this->_parse_modifiers($return, $tag_modifier);
  787. }
  788. if(!empty($_assign_var)) {
  789. $output = "\$this->assign('" . $this->_dequote($_assign_var) ."', $return);";
  790. } else {
  791. $output = 'echo ' . $return . ';';
  792. $newline = $this->_additional_newline;
  793. }
  794. } else {
  795. $output = '';
  796. }
  797. return '<?php ' . $prefix . $output . $postfix . "?>" . $newline;
  798. }
  799. /**
  800. * Compile {insert ...} tag
  801. *
  802. * @param string $tag_args
  803. * @return string
  804. */
  805. function _compile_insert_tag($tag_args)
  806. {
  807. $attrs = $this->_parse_attrs($tag_args);
  808. $name = $this->_dequote($attrs['name']);
  809. if (empty($name)) {
  810. $this->_syntax_error("missing insert name", E_USER_ERROR, __FILE__, __LINE__);
  811. }
  812. if (!empty($attrs['script'])) {
  813. $delayed_loading = true;
  814. } else {
  815. $delayed_loading = false;
  816. }
  817. foreach ($attrs as $arg_name => $arg_value) {
  818. if (is_bool($arg_value))
  819. $arg_value = $arg_value ? 'true' : 'false';
  820. $arg_list[] = "'$arg_name' => $arg_value";
  821. }
  822. $this->_add_plugin('insert', $name, $delayed_loading);
  823. $_params = "array('args' => array(".implode(', ', (array)$arg_list)."))";
  824. return "<?php require_once(SMARTY_CORE_DIR . 'core.run_insert_handler.php');\necho smarty_core_run_insert_handler($_params, \$this); ?>" . $this->_additional_newline;
  825. }
  826. /**
  827. * Compile {include ...} tag
  828. *
  829. * @param string $tag_args
  830. * @return string
  831. */
  832. function _compile_include_tag($tag_args)
  833. {
  834. $attrs = $this->_parse_attrs($tag_args);
  835. $arg_list = array();
  836. if (empty($attrs['file'])) {
  837. $this->_syntax_error("missing 'file' attribute in include tag", E_USER_ERROR, __FILE__, __LINE__);
  838. }
  839. foreach ($attrs as $arg_name => $arg_value) {
  840. if ($arg_name == 'file') {
  841. $include_file = $arg_value;
  842. continue;
  843. } else if ($arg_name == 'assign') {
  844. $assign_var = $arg_value;
  845. continue;
  846. }
  847. if (is_bool($arg_value))
  848. $arg_value = $arg_value ? 'true' : 'false';
  849. $arg_list[] = "'$arg_name' => $arg_value";
  850. }
  851. $output = '<?php ';
  852. if (isset($assign_var)) {
  853. $output .= "ob_start();\n";
  854. }
  855. $output .=
  856. "\$_smarty_tpl_vars = \$this->_tpl_vars;\n";
  857. $_params = "array('smarty_include_tpl_file' => " . $include_file . ", 'smarty_include_vars' => array(".implode(',', (array)$arg_list)."))";
  858. $output .= "\$this->_smarty_include($_params);\n" .
  859. "\$this->_tpl_vars = \$_smarty_tpl_vars;\n" .
  860. "unset(\$_smarty_tpl_vars);\n";
  861. if (isset($assign_var)) {
  862. $output .= "\$this->assign(" . $assign_var . ", ob_get_contents()); ob_end_clean();\n";
  863. }
  864. $output .= ' ?>';
  865. return $output;
  866. }
  867. /**
  868. * Compile {include ...} tag
  869. *
  870. * @param string $tag_args
  871. * @return string
  872. */
  873. function _compile_include_php_tag($tag_args)
  874. {
  875. $attrs = $this->_parse_attrs($tag_args);
  876. if (empty($attrs['file'])) {
  877. $this->_syntax_error("missing 'file' attribute in include_php tag", E_USER_ERROR, __FILE__, __LINE__);
  878. }
  879. $assign_var = (empty($attrs['assign'])) ? '' : $this->_dequote($attrs['assign']);
  880. $once_var = (empty($attrs['once']) || $attrs['once']=='false') ? 'false' : 'true';
  881. $arg_list = array();
  882. foreach($attrs as $arg_name => $arg_value) {
  883. if($arg_name != 'file' AND $arg_name != 'once' AND $arg_name != 'assign') {
  884. if(is_bool($arg_value))
  885. $arg_value = $arg_value ? 'true' : 'false';
  886. $arg_list[] = "'$arg_name' => $arg_value";
  887. }
  888. }
  889. $_params = "array('smarty_file' => " . $attrs['file'] . ", 'smarty_assign' => '$assign_var', 'smarty_once' => $once_var, 'smarty_include_vars' => array(".implode(',', $arg_list)."))";
  890. return "<?php require_once(SMARTY_CORE_DIR . 'core.smarty_include_php.php');\nsmarty_core_smarty_include_php($_params, \$this); ?>" . $this->_additional_newline;
  891. }
  892. /**
  893. * Compile {section ...} tag
  894. *
  895. * @param string $tag_args
  896. * @return string
  897. */
  898. function _compile_section_start($tag_args)
  899. {
  900. $attrs = $this->_parse_attrs($tag_args);
  901. $arg_list = array();
  902. $output = '<?php ';
  903. $section_name = $attrs['name'];
  904. if (empty($section_name)) {
  905. $this->_syntax_error("missing section name", E_USER_ERROR, __FILE__, __LINE__);
  906. }
  907. $output .= "unset(\$this->_sections[$section_name]);\n";
  908. $section_props = "\$this->_sections[$section_name]";
  909. foreach ($attrs as $attr_name => $attr_value) {
  910. switch ($attr_name) {
  911. case 'loop':
  912. $output .= "{$section_props}['loop'] = is_array(\$_loop=$attr_value) ? count(\$_loop) : max(0, (int)\$_loop); unset(\$_loop);\n";
  913. break;
  914. case 'show':
  915. if (is_bool($attr_value))
  916. $show_attr_value = $attr_value ? 'true' : 'false';
  917. else
  918. $show_attr_value = "(bool)$attr_value";
  919. $output .= "{$section_props}['show'] = $show_attr_value;\n";
  920. break;
  921. case 'name':
  922. $output .= "{$section_props}['$attr_name'] = $attr_value;\n";
  923. break;
  924. case 'max':
  925. case 'start':
  926. $output .= "{$section_props}['$attr_name'] = (int)$attr_value;\n";
  927. break;
  928. case 'step':
  929. $output .= "{$section_props}['$attr_name'] = ((int)$attr_value) == 0 ? 1 : (int)$attr_value;\n";
  930. break;
  931. default:
  932. $this->_syntax_error("unknown section attribute - '$attr_name'", E_USER_ERROR, __FILE__, __LINE__);
  933. break;
  934. }
  935. }
  936. if (!isset($attrs['show']))
  937. $output .= "{$section_props}['show'] = true;\n";
  938. if (!isset($attrs['loop']))
  939. $output .= "{$section_props}['loop'] = 1;\n";
  940. if (!isset($attrs['max']))
  941. $output .= "{$section_props}['max'] = {$section_props}['loop'];\n";
  942. else
  943. $output .= "if ({$section_props}['max'] < 0)\n" .
  944. " {$section_props}['max'] = {$section_props}['loop'];\n";
  945. if (!isset($attrs['step']))
  946. $output .= "{$section_props}['step'] = 1;\n";
  947. if (!isset($attrs['start']))
  948. $output .= "{$section_props}['start'] = {$section_props}['step'] > 0 ? 0 : {$section_props}['loop']-1;\n";
  949. else {
  950. $output .= "if ({$section_props}['start'] < 0)\n" .
  951. " {$section_props}['start'] = max({$section_props}['step'] > 0 ? 0 : -1, {$section_props}['loop'] + {$section_props}['start']);\n" .
  952. "else\n" .
  953. " {$section_props}['start'] = min({$section_props}['start'], {$section_props}['step'] > 0 ? {$section_props}['loop'] : {$section_props}['loop']-1);\n";
  954. }
  955. $output .= "if ({$section_props}['show']) {\n";
  956. if (!isset($attrs['start']) && !isset($attrs['step']) && !isset($attrs['max'])) {
  957. $output .= " {$section_props}['total'] = {$section_props}['loop'];\n";
  958. } else {
  959. $output .= " {$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";
  960. }
  961. $output .= " if ({$section_props}['total'] == 0)\n" .
  962. " {$section_props}['show'] = false;\n" .
  963. "} else\n" .
  964. " {$section_props}['total'] = 0;\n";
  965. $output .= "if ({$section_props}['show']):\n";
  966. $output .= "
  967. for ({$section_props}['index'] = {$section_props}['start'], {$section_props}['iteration'] = 1;
  968. {$section_props}['iteration'] <= {$section_props}['total'];
  969. {$section_props}['index'] += {$section_props}['step'], {$section_props}['iteration']++):\n";
  970. $output .= "{$section_props}['rownum'] = {$section_props}['iteration'];\n";
  971. $output .= "{$section_props}['index_prev'] = {$section_props}['index'] - {$section_props}['step'];\n";
  972. $output .= "{$section_props}['index_next'] = {$section_props}['index'] + {$section_props}['step'];\n";
  973. $output .= "{$section_props}['first'] = ({$section_props}['iteration'] == 1);\n";
  974. $output .= "{$section_props}['last'] = ({$section_props}['iteration'] == {$section_props}['total']);\n";
  975. $output .= "?>";
  976. return $output;
  977. }
  978. /**
  979. * Compile {foreach ...} tag.
  980. *
  981. * @param string $tag_args
  982. * @return string
  983. */
  984. function _compile_foreach_start($tag_args)
  985. {
  986. $attrs = $this->_parse_attrs($tag_args);
  987. $arg_list = array();
  988. if (empty($attrs['from'])) {
  989. return $this->_syntax_error("foreach: missing 'from' attribute", E_USER_ERROR, __FILE__, __LINE__);
  990. }
  991. $from = $attrs['from'];
  992. if (empty($attrs['item'])) {
  993. return $this->_syntax_error("foreach: missing 'item' attribute", E_USER_ERROR, __FILE__, __LINE__);
  994. }
  995. $item = $this->_dequote($attrs['item']);
  996. if (!preg_match('~^\w+$~', $item)) {
  997. return $this->_syntax_error("'foreach: item' must be a variable name (literal string)", E_USER_ERROR, __FILE__, __LINE__);
  998. }
  999. if (isset($attrs['key'])) {
  1000. $key = $this->_dequote($attrs['key']);
  1001. if (!preg_match('~^\w+$~', $key)) {
  1002. return $this->_syntax_error("foreach: 'key' must to be a variable name (literal string)", E_USER_ERROR, __FILE__, __LINE__);
  1003. }
  1004. $key_part = "\$this->_tpl_vars['$key'] => ";
  1005. } else {
  1006. $key = null;
  1007. $key_part = '';
  1008. }
  1009. if (isset($attrs['name'])) {
  1010. $name = $attrs['name'];
  1011. } else {
  1012. $name = null;
  1013. }
  1014. $output = '<?php ';
  1015. if (isset($name)) {
  1016. $foreach_props = "\$this->_foreach[$name]";
  1017. $output .= "{$foreach_props} = array('total' => count(\$_from = (array)$from), 'iteration' => 0);\n";
  1018. $output .= "if ({$foreach_props}['total'] > 0):\n";
  1019. $output .= " foreach (\$_from as $key_part\$this->_tpl_vars['$item']):\n";
  1020. $output .= " {$foreach_props}['iteration']++;\n";
  1021. } else {
  1022. $output .= "if (count(\$_from = (array)$from)):\n";
  1023. $output .= " foreach (\$_from as $key_part\$this->_tpl_vars['$item']):\n";
  1024. }
  1025. $output .= '?>';
  1026. return $output;
  1027. }
  1028. /**
  1029. * Compile {capture} .. {/capture} tags
  1030. *
  1031. * @param boolean $start true if this is the {capture} tag
  1032. * @param string $tag_args
  1033. * @return string
  1034. */
  1035. function _compile_capture_tag($start, $tag_args = '')
  1036. {
  1037. $attrs = $this->_parse_attrs($tag_args);
  1038. if ($start) {
  1039. if (isset($attrs['name']))
  1040. $buffer = $attrs['name'];
  1041. else
  1042. $buffer = "'default'";
  1043. if (isset($attrs['assign']))
  1044. $assign = $attrs['assign'];
  1045. else
  1046. $assign = null;
  1047. $output = "<?php ob_start(); ?>";
  1048. $this->_capture_stack[] = array($buffer, $assign);
  1049. } else {
  1050. list($buffer, $assign) = array_pop($this->_capture_stack);
  1051. $output = "<?php \$this->_smarty_vars['capture'][$buffer] = ob_get_contents(); ";
  1052. if (isset($assign)) {
  1053. $output .= " \$this->assign($assign, ob_get_contents());";
  1054. }
  1055. $output .= "ob_end_clean(); ?>";
  1056. }
  1057. return $output;

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