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/template_engines_bench/libs/smarty-light/src/class.compiler.php

https://github.com/limb-php-framework/limb-tools
PHP | 800 lines | 647 code | 51 blank | 102 comment | 127 complexity | ef663209fe749a742c3f18037e1288f0 MD5 | raw file
Possible License(s): AGPL-1.0, LGPL-2.1 
    

  1. <?php
    2. 

  2. /*
    3. 

  3.  * Project:	Smarty-Light, a smarter template engine
    4. 

  4.  * File:	class.compiler.php
    5. 

  5.  * Author:	Paul Lockaby <paul@paullockaby.com>
    6. 

  6.  * Version:	2.2.11
    7. 

  7.  * Copyright:	2003,2004,2005 by Paul Lockaby
    8. 

  8.  * Credit:	This work is a light version of Smarty: the PHP compiling
    9. 

  9.  *		template engine, v2.5.0-CVS. Smarty was originally
    10. 

  10.  *		programmed by Monte Ohrt and Andrei Zmievski and can be
    11. 

  11.  *		found at http://smarty.php.net
    12. 

  12.  *
    13. 

  13.  * This library is free software; you can redistribute it and/or
    14. 

  14.  * modify it under the terms of the GNU Lesser General Public
    15. 

  15.  * License as published by the Free Software Foundation; either
    16. 

  16.  * version 2.1 of the License, or (at your option) any later version.
    17. 

  17.  *
    18. 

  18.  * This library is distributed in the hope that it will be useful,
    19. 

  19.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    20. 

  20.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    21. 

  21.  * Lesser General Public License for more details.
    22. 

  22.  *
    23. 

  23.  * You should have received a copy of the GNU Lesser General Public
    24. 

  24.  * License along with this library; if not, write to the Free Software
    25. 

  25.  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    26. 

  26.  *
    27. 

  27.  * You may contact the author of Smarty-Light by e-mail at:
    28. 

  28.  * paul@paullockaby.com
    29. 

  29.  *
    30. 

  30.  * The latest version of Smarty-Light can be obtained from:
    31. 

  31.  * http://www.paullockaby.com/projects/smarty-light
    32. 

  32.  *
    33. 

  33.  */
    34. 

  34. 

  35. class compiler extends template {
    36. 

  36. 	// public configuration variables
    37. 

  37. 	var $left_tag			= "";
    38. 

  38. 	var $right_tag			= "";
    39. 

  39. 	var $plugin_dir			= "";
    40. 

  40. 	var $template_dir		= "";
    41. 

  41. 

  42. 	// private internal variables
    43. 

  43. 	var $_vars			=	array();	// stores all internal assigned variables
    44. 

  44. 	var $_confs			=	array();	// stores all internal config variables
    45. 

  45. 	var $_plugins			=	array();	// stores all internal plugins
    46. 

  46. 	var $_linenum			=	0;		// the current line number in the file we are processing
    47. 

  47. 	var $_file			=	"";		// the current file we are processing
    48. 

  48. 	var $_literal			=	array();	// stores all literal blocks
    49. 

  49. 	var $_foreachelse_stack		=	array();
    50. 

  50. 	var $_for_stack			=	0;
    51. 

  51. 	var $_switch_stack		=	array();
    52. 

  52. 	var $_tag_stack			=	array();
    53. 

  53. 	var $_require_stack		=	array();	// stores all files that are "required" inside of the template
    54. 

  54. 	var $_php_blocks		=	array();	// stores all of the php blocks
    55. 

  55. 	var $_error_level		=	null;
    56. 

  56. 	var $_sl_md5			=	'39fc70570b8b60cbc1b85839bf242aff';
    57. 

  57. 

  58. 	var $_db_qstr_regexp		=	null;		// regexps are setup in the constructor
    59. 

  59. 	var $_si_qstr_regexp		=	null;
    60. 

  60. 	var $_qstr_regexp		=	null;
    61. 

  61. 	var $_func_regexp		=	null;
    62. 

  62. 	var $_var_bracket_regexp	=	null;
    63. 

  63. 	var $_dvar_regexp		=	null;
    64. 

  64. 	var $_cvar_regexp		=	null;
    65. 

  65. 	var $_mod_regexp		=	null;
    66. 

  66. 	var $_var_regexp		=	null;
    67. 

  67. 

  68. 	function compiler() {
    69. 

  69. 		// matches double quoted strings:
    70. 

  70. 		// "foobar"
    71. 

  71. 		// "foo\"bar"
    72. 

  72. 		// "foobar" . "foo\"bar"
    73. 

  73. 		$this->_db_qstr_regexp = '"[^"\\\\]*(?:\\\\.[^"\\\\]*)*"';
    74. 

  74. 

  75. 		// matches single quoted strings:
    76. 

  76. 		// 'foobar'
    77. 

  77. 		// 'foo\'bar'
    78. 

  78. 		$this->_si_qstr_regexp = '\'[^\'\\\\]*(?:\\\\.[^\'\\\\]*)*\'';
    79. 

  79. 

  80. 		// matches single or double quoted strings
    81. 

  81. 		$this->_qstr_regexp = '(?:' . $this->_db_qstr_regexp . '|' . $this->_si_qstr_regexp . ')';
    82. 

  82. 

  83. 		// matches bracket portion of vars
    84. 

  84. 		// [0]
    85. 

  85. 		// [foo]
    86. 

  86. 		// [$bar]
    87. 

  87. 		// [#bar#]
    88. 

  88. 		$this->_var_bracket_regexp = '\[[\$|\#]?\w+\#?\]';
    89. 

  89. 				
    90. 

  90. 		// matches $ vars (not objects):
    91. 

  91. 		// $foo
    92. 

  92. 		// $foo[0]
    93. 

  93. 		// $foo[$bar]
    94. 

  94. 		// $foo[5][blah]
    95. 

  95. 		$this->_dvar_regexp = '\$[a-zA-Z0-9_]{1,}(?:' . $this->_var_bracket_regexp . ')*(?:' . $this->_var_bracket_regexp . ')*';
    96. 

  96. 

  97. 		// matches config vars:
    98. 

  98. 		// #foo#
    99. 

  99. 		// #foobar123_foo#
    100. 

  100. 		$this->_cvar_regexp = '\#[a-zA-Z0-9_]{1,}(?:' . $this->_var_bracket_regexp . ')*(?:' . $this->_var_bracket_regexp . ')*\#';
    101. 

  101. 

  102. 		// matches valid variable syntax:
    103. 

  103. 		// $foo
    104. 

  104. 		// 'text'
    105. 

  105. 		// "text"
    106. 

  106. 		$this->_var_regexp = '(?:(?:' . $this->_dvar_regexp . '|' . $this->_cvar_regexp . ')|' . $this->_qstr_regexp . ')';
    107. 

  107. 

  108. 		// matches valid modifier syntax:
    109. 

  109. 		// |foo
    110. 

  110. 		// |@foo
    111. 

  111. 		// |foo:"bar"
    112. 

  112. 		// |foo:$bar
    113. 

  113. 		// |foo:"bar":$foobar
    114. 

  114. 		// |foo|bar
    115. 

  115. 		$this->_mod_regexp = '(?:\|@?[0-9a-zA-Z_]+(?::(?>-?\w+|' . $this->_dvar_regexp . '|' . $this->_qstr_regexp .'))*)';		
    116. 

  116. 

  117. 		// matches valid function name:
    118. 

  118. 		// foo123
    119. 

  119. 		// _foo_bar
    120. 

  120. 		$this->_func_regexp = '[a-zA-Z0-9_]+';
    121. 

  121. 	}
    122. 

  122. 

  123. 	function _compile_file($file_contents) {
    124. 

  124. 		$ldq = preg_quote($this->left_tag);
    125. 

  125. 		$rdq = preg_quote($this->right_tag);
    126. 

  126. 		$_match		= array();		// a temp variable for the current regex match
    127. 

  127. 		$tags		= array();		// all original tags
    128. 

  128. 		$text		= array();		// all original text
    129. 

  129. 		$compiled_text	= "";			// stores the compiled result
    130. 

  130. 		$compiled_tags	= array();		// all tags and stuff
    131. 

  131. 

  132. 		// remove all comments
    133. 

  133. 		$file_contents = preg_replace("!{$ldq}\*.*?\*{$rdq}!se","",$file_contents);
    134. 

  134. 

  135. 		// replace all php start and end tags
    136. 

  136. 		$file_contents = preg_replace('%(<\?(?!php|=|$))%i', '<?php echo \'\\1\'?>'."\n", $file_contents);
    137. 

  137. 

  138. 		// remove literal blocks
    139. 

  139. 		preg_match_all("!{$ldq}\s*literal\s*{$rdq}(.*?){$ldq}\s*/literal\s*{$rdq}!s", $file_contents, $_match);
    140. 

  140. 		$this->_literal = $_match[1];
    141. 

  141. 		$file_contents = preg_replace("!{$ldq}\s*literal\s*{$rdq}(.*?){$ldq}\s*/literal\s*{$rdq}!s", stripslashes($ldq . "literal" . $rdq), $file_contents);
    142. 

  142. 

  143. 		// remove php blocks
    144. 

  144. 		preg_match_all("!{$ldq}\s*php\s*{$rdq}(.*?){$ldq}\s*/php\s*{$rdq}!s", $file_contents, $_match);
    145. 

  145. 		$this->_php_blocks = $_match[1];
    146. 

  146. 		$file_contents = preg_replace("!{$ldq}\s*php\s*{$rdq}(.*?){$ldq}\s*/php\s*{$rdq}!s", stripslashes($ldq . "php" . $rdq), $file_contents);
    147. 

  147. 

  148. 		// gather all template tags
    149. 

  149. 		preg_match_all("!{$ldq}\s*(.*?)\s*{$rdq}!s", $file_contents, $_match);
    150. 

  150. 		$tags = $_match[1];
    151. 

  151. 

  152. 		// put all of the non-template tag text blocks into an array, using the template tags as delimiters
    153. 

  153. 		$text = preg_split("!{$ldq}.*?{$rdq}!s", $file_contents);
    154. 

  154. 

  155. 		// compile template tags
    156. 

  156. 		for ($i = 0, $for_max = count($tags); $i < $for_max; $i++) {
    157. 

  157. 			$this->_linenum += substr_count($text[$i], "\n");
    158. 

  158. 			$compiled_tags[] = $this->_compile_tag($tags[$i]);
    159. 

  159. 			$this->_linenum += substr_count($tags[$i], "\n");
    160. 

  160. 		}
    161. 

  161. 

  162. 		// build the compiled template by replacing and interleaving text blocks and compiled tags
    163. 

  163. 		for ($i = 0, $for_max = count($compiled_tags); $i < $for_max; $i++)
    164. 

  164. 			$compiled_text .= $text[$i].$compiled_tags[$i];
    165. 

  165. 		$compiled_text .= $text[$i];
    166. 

  166. 

  167. 		foreach ($this->_require_stack as $key => $value)
    168. 

  168. 			$compiled_text = '<?php require_once(\''. $this->_get_plugin_dir() . $key . '\'); $this->register_' . $value[0] . '("' . $value[1] . '", "' . $value[2] . '"); ?>' . $compiled_text;
    169. 

  169. 

  170. 		// remove unnecessary close/open tags
    171. 

  171. 		$compiled_text = preg_replace('!\?>\n?<\?php!', '', $compiled_text);
    172. 

  172. 

  173. 		return $compiled_text;
    174. 

  174. 	}
    175. 

  175. 

  176. 	function _compile_tag($tag) {
    177. 

  177. 		$_match		= array();		// stores the tags
    178. 

  178. 		$_result	= "";			// the compiled tag
    179. 

  179. 		$_variable	= "";			// the compiled variable
    180. 

  180. 

  181. 		// extract the tag command, modifier and arguments
    182. 

  182. 		preg_match_all('/(?:(' . $this->_var_regexp . '|\/?' . $this->_func_regexp . ')(' . $this->_mod_regexp . '*)(?:\s*[,\.]\s*)?)(?:\s+(.*))?/xs', $tag, $_match);
    183. 

  183. 

  184. 		if ($_match[1][0]{0} == '$' || ($_match[1][0]{0} == '#' && $_match[1][0]{strlen($_match[1][0]) - 1} == '#') || $_match[1][0]{0} == "'" || $_match[1][0]{0} == '"') {
    185. 

  185. 			$_result = $this->_parse_variables($_match[1], $_match[2]);
    186. 

  186. 			return "<?php echo $_result; ?>\n";
    187. 

  187. 		}
    188. 

  188. 		// process a function
    189. 

  189. 		$tag_command = $_match[1][0];
    190. 

  190. 		$tag_modifiers = !empty($_match[2][0]) ? $_match[2][0] : null;
    191. 

  191. 		$tag_arguments = !empty($_match[3][0]) ? $_match[3][0] : null;
    192. 

  192. 		$_result = $this->_parse_function($tag_command, $tag_modifiers, $tag_arguments);
    193. 

  193. 		return $_result;
    194. 

  194. 	}
    195. 

  195. 

  196. 	function _parse_function($function, $modifiers, $arguments) {
    197. 

  197. 		switch ($function) {
    198. 

  198. 			case 'include':
    199. 

  199. 				$_args = $this->_parse_arguments($arguments);
    200. 

  200. 				if (!isset($_args['file']))
    201. 

  201. 					$this->trigger_error("missing 'file' attribute in 'include'", E_USER_ERROR, __FILE__, __LINE__);
    202. 

  202. 				if (!isset($_args['assign']))
    203. 

  203. 					return '<?php echo $this->_fetch_compile(' . $_args['file'] . '); ?>';
    204. 

  204. 				else
    205. 

  205. 					return '<?php $this->assign("' . $this->_dequote($_args['assign']) . '", $this->_fetch_compile(' . $_args['file'] . ')); ?>';
    206. 

  206. 				break;
    207. 

  207. 			case 'insert':
    208. 

  208. 				$_args = $this->_parse_arguments($arguments);
    209. 

  209. 				if (!isset($_args['name']))
    210. 

  210. 					$this->trigger_error("missing 'name' attribute in 'insert'", E_USER_ERROR, __FILE__, __LINE__);
    211. 

  211. 				foreach ($_args as $key => $value) {
    212. 

  212. 					if (is_bool($value))
    213. 

  213. 						$value = $value ? 'true' : 'false';
    214. 

  214. 					$arg_list[] = "'$key' => $value";
    215. 

  215. 				}
    216. 

  216. 				return '<?php echo $this->_run_insert(array(' . implode(', ', (array)$arg_list) . ')); ?>';
    217. 

  217. 				break;
    218. 

  218. 			case 'ldelim':
    219. 

  219. 				return $this->left_tag;
    220. 

  220. 				break;
    221. 

  221. 			case 'rdelim':
    222. 

  222. 				return $this->right_tag;
    223. 

  223. 				break;
    224. 

  224. 			case 'literal':
    225. 

  225. 				list (,$literal) = each($this->_literal);
    226. 

  226. 				$this->_linenum += substr_count($literal, "\n");
    227. 

  227. 				return "<?php echo '" . str_replace("'", "\'", str_replace("\\", "\\\\", $literal)) . "'; ?>\n";
    228. 

  228. 				break;
    229. 

  229. 			case 'php':
    230. 

  230. 				list (,$php_block) = each($this->_php_blocks);
    231. 

  231. 				$this->_linenum += substr_count($php_block, "\n");
    232. 

  232. 				return '<?php ' . $php_block . ' ?>';
    233. 

  233. 				break;
    234. 

  234. 			case 'foreach':
    235. 

  235. 				array_push($this->_foreachelse_stack, false);
    236. 

  236. 				$_args = $this->_parse_arguments($arguments);
    237. 

  237. 				if (!isset($_args['from']))
    238. 

  238. 					$this->trigger_error("missing 'from' attribute in 'foreach'", E_USER_ERROR, __FILE__, __LINE__);
    239. 

  239. 				if (!isset($_args['value']) && !isset($_args['item']))
    240. 

  240. 					$this->trigger_error("missing 'value' attribute in 'foreach'", E_USER_ERROR, __FILE__, __LINE__);
    241. 

  241. 				if (isset($_args['value'])) {
    242. 

  242. 					$_args['value'] = $this->_dequote($_args['value']);
    243. 

  243. 				} elseif (isset($_args['item'])) {
    244. 

  244. 					$_args['value'] = $this->_dequote($_args['item']);
    245. 

  245. 				}
    246. 

  246. 				isset($_args['key']) ? $_args['key'] = "\$this->_vars['".$this->_dequote($_args['key'])."'] => " : $_args['key'] = '';
    247. 

  247. 				$_result = '<?php if (count((array)' . $_args['from'] . ')): foreach ((array)' . $_args['from'] . ' as ' . $_args['key'] . '$this->_vars[\'' . $_args['value'] . '\']): ?>';
    248. 

  248. 				return $_result;
    249. 

  249. 				break;
    250. 

  250. 			case 'foreachelse':
    251. 

  251. 				$this->_foreachelse_stack[count($this->_foreachelse_stack)-1] = true;
    252. 

  252. 				return "<?php endforeach; else: ?>";
    253. 

  253. 				break;
    254. 

  254. 			case '/foreach':
    255. 

  255. 				if (array_pop($this->_foreachelse_stack))
    256. 

  256. 					return "<?php endif; ?>";
    257. 

  257. 				else
    258. 

  258. 					return "<?php endforeach; endif; ?>";
    259. 

  259. 				break;
    260. 

  260. 			case 'for':
    261. 

  261. 				$this->_for_stack++;
    262. 

  262. 				$_args = $this->_parse_arguments($arguments);
    263. 

  263. 				if (!isset($_args['start']))
    264. 

  264. 					$this->trigger_error("missing 'start' attribute in 'for'", E_USER_ERROR, __FILE__, __LINE__);
    265. 

  265. 				if (!isset($_args['stop']))
    266. 

  266. 					$this->trigger_error("missing 'stop' attribute in 'for'", E_USER_ERROR, __FILE__, __LINE__);
    267. 

  267. 				if (!isset($_args['step']))
    268. 

  268. 					$_args['step'] = 1;
    269. 

  269. 				$_result = '<?php for($for' . $this->_for_stack . ' = ' . $_args['start'] . '; ((' . $_args['start'] . ' < ' . $_args['stop'] . ') ? ($for' . $this->_for_stack . ' < ' . $_args['stop'] . ') : ($for' . $this->_for_stack . ' > ' . $_args['stop'] . ')); $for' . $this->_for_stack . ' += ((' . $_args['start'] . ' < ' . $_args['stop'] . ') ? ' . $_args['step'] . ' : -' . $_args['step'] . ')): ?>';
    270. 

  270. 				if (isset($_args['value']))
    271. 

  271. 					$_result .= '<?php $this->assign(\'' . $this->_dequote($_args['value']) . '\', $for' . $this->_for_stack . '); ?>';
    272. 

  272. 				return $_result;
    273. 

  273. 				break;
    274. 

  274. 			case '/for':
    275. 

  275. 				$this->_for_stack--;
    276. 

  276. 				return "<?php endfor; ?>";
    277. 

  277. 				break;
    278. 

  278. 			case 'if':
    279. 

  279. 				return $this->_compile_if($arguments);
    280. 

  280. 				break;
    281. 

  281. 			case 'else':
    282. 

  282. 				return "<?php else: ?>";
    283. 

  283. 				break;
    284. 

  284. 			case 'elseif':
    285. 

  285. 				return $this->_compile_if($arguments, true);
    286. 

  286. 				break;
    287. 

  287. 			case '/if':
    288. 

  288. 				return "<?php endif; ?>";
    289. 

  289. 				break;
    290. 

  290. 			case 'assign':
    291. 

  291. 		        	$_args = $this->_parse_arguments($arguments);
    292. 

  292. 				if (!isset($_args['name']))
    293. 

  293. 					$this->trigger_error("missing 'name' attribute in 'assign'", E_USER_ERROR, __FILE__, __LINE__);
    294. 

  294. 				if (!isset($_args['value']))
    295. 

  295. 					$this->trigger_error("missing 'value' attribute in 'assign'", E_USER_ERROR, __FILE__, __LINE__);
    296. 

  296. 				return '<?php $this->assign(\'' . $this->_dequote($_args['name']) . '\', ' . $_args['value'] . '); ?>';
    297. 

  297. 				break;
    298. 

  298. 			case 'switch':
    299. 

  299. 				$_args = $this->_parse_arguments($arguments);
    300. 

  300. 				if (!isset($_args['from']))
    301. 

  301. 					$this->trigger_error("missing 'from' attribute in 'switch'", E_USER_ERROR, __FILE__, __LINE__);
    302. 

  302. 				array_push($this->_switch_stack, array("matched" => false, "var" => $this->_dequote($_args['from'])));
    303. 

  303. 				return;
    304. 

  304. 				break;
    305. 

  305. 			case '/switch':
    306. 

  306. 				array_pop($this->_switch_stack);
    307. 

  307. 				return '<?php break; endswitch; ?>';
    308. 

  308. 				break;
    309. 

  309. 			case 'case':
    310. 

  310. 				if (count($this->_switch_stack) > 0) {
    311. 

  311. 					$_result = "<?php ";
    312. 

  312. 					$_args = $this->_parse_arguments($arguments);
    313. 

  313. 					$_index = count($this->_switch_stack) - 1;
    314. 

  314. 					if (!$this->_switch_stack[$_index]["matched"]) {
    315. 

  315. 						$_result .= 'switch(' . $this->_switch_stack[$_index]["var"] . '): ';
    316. 

  316. 						$this->_switch_stack[$_index]["matched"] = true;
    317. 

  317. 					} else {
    318. 

  318. 						$_result .= 'break; ';
    319. 

  319. 					}
    320. 

  320. 					if (!empty($_args['value']))
    321. 

  321. 						$_result .= 'case '.$_args['value'].': ';
    322. 

  322. 					else
    323. 

  323. 						$_result .= 'default: ';
    324. 

  324. 					return $_result . ' ?>';
    325. 

  325. 				} else {
    326. 

  326. 					$this->trigger_error("unexpected 'case', 'case' can only be in a 'switch'", E_USER_ERROR, __FILE__, __LINE__);
    327. 

  327. 				}
    328. 

  328. 				break;
    329. 

  329. 			case 'config_load':
    330. 

  330. 				$_args = $this->_parse_arguments($arguments);
    331. 

  331. 				if (empty($_args['file']))
    332. 

  332. 					$this->trigger_error("missing 'file' attribute in 'config_load' tag", E_USER_ERROR, __FILE__, __LINE__);
    333. 

  333. 				isset($_args['section']) ? null : $_args['section'] = 'null';
    334. 

  334. 				isset($_args['var']) ? null : $_args['var'] = 'null';
    335. 

  335. 				return '<?php $this->config_load(' . $_args['file'] . ', ' . $_args['section'] . ', ' . $_args['var'] . '); ?>';
    336. 

  336. 				break;
    337. 

  337. 			default:
    338. 

  338. 				$_result = "";
    339. 

  339. 				if ($this->_compile_custom_block($function, $modifiers, $arguments, $_result)) {
    340. 

  340. 					return $_result;
    341. 

  341. 				} elseif ($this->_compile_custom_function($function, $modifiers, $arguments, $_result)) {
    342. 

  342. 					return $_result;
    343. 

  343. 				} else {
    344. 

  344. 					$this->trigger_error($function." function does not exist", E_USER_ERROR, __FILE__, __LINE__);
    345. 

  345. 				}
    346. 

  346. 				break;
    347. 

  347. 		}
    348. 

  348. 	}
    349. 

  349. 

  350. 	function _compile_custom_function($function, $modifiers, $arguments, &$_result) {
    351. 

  351. 		if ($function = $this->_plugin_exists($function, "function")) {
    352. 

  352. 			$_args = $this->_parse_arguments($arguments);
    353. 

  353. 			foreach($_args as $key => $value) {
    354. 

  354. 				if (is_bool($value))
    355. 

  355. 					$value = $value ? 'true' : 'false';
    356. 

  356. 				if (is_null($value))
    357. 

  357. 					$value = 'null';
    358. 

  358. 				$_args[$key] = "'$key' => $value";
    359. 

  359. 			}
    360. 

  360. 			$_result = '<?php echo ';
    361. 

  361. 			if (!empty($modifiers)) {
    362. 

  362. 				$_result .= $this->_parse_modifier($function . '(array(' . implode(',', (array)$_args) . '), $this)', $modifiers) . '; ';
    363. 

  363. 			} else {
    364. 

  364. 				$_result .= $function . '(array(' . implode(',', (array)$_args) . '), $this);';
    365. 

  365. 			}
    366. 

  366. 			$_result .= '?>';
    367. 

  367. 			return true;
    368. 

  368. 		} else {
    369. 

  369. 			return false;
    370. 

  370. 		}
    371. 

  371. 	}
    372. 

  372. 

  373. 	function _compile_custom_block($function, $modifiers, $arguments, &$_result) {
    374. 

  374. 		if ($function{0} == '/') {
    375. 

  375. 			$start_tag = false;
    376. 

  376. 			$function = substr($function, 1);
    377. 

  377. 		} else {
    378. 

  378. 			$start_tag = true;
    379. 

  379. 		}
    380. 

  380. 

  381. 		if ($function = $this->_plugin_exists($function, "block")) {
    382. 

  382. 			if ($start_tag) {
    383. 

  383. 				$_args = $this->_parse_arguments($arguments);
    384. 

  384. 				foreach($_args as $key => $value) {
    385. 

  385. 					if (is_bool($value))
    386. 

  386. 						$value = $value ? 'true' : 'false';
    387. 

  387. 					if (is_null($value))
    388. 

  388. 						$value = 'null';
    389. 

  389. 					$_args[$key] = "'$key' => $value";
    390. 

  390. 				}
    391. 

  391. 				$_result = "<?php \$this->_tag_stack[] = array('$function', array(".implode(',', (array)$_args).")); ";
    392. 

  392. 				$_result .= $function . '(array(' . implode(',', (array)$_args) .'), null, $this); ';
    393. 

  393. 				$_result .= 'ob_start(); ?>';
    394. 

  394. 			} else {
    395. 

  395. 				$_result .= '<?php $this->_block_content = ob_get_contents(); ob_end_clean(); ';
    396. 

  396. 				$_result .= '$this->_block_content = ' . $function . '($this->_tag_stack[count($this->_tag_stack) - 1][1], $this->_block_content, $this); ';
    397. 

  397. 				if (!empty($modifiers)) {
    398. 

  398. 					$_result .= '$this->_block_content = ' . $this->_parse_modifier('$this->_block_content', $modifiers) . '; ';
    399. 

  399. 				}
    400. 

  400. 				$_result .= 'echo $this->_block_content; array_pop($this->_tag_stack); ?>';
    401. 

  401. 			}
    402. 

  402. 			return true;
    403. 

  403. 		} else {
    404. 

  404. 			return false;
    405. 

  405. 		}
    406. 

  406. 	}
    407. 

  407. 

  408. 	function _compile_if($arguments, $elseif = false) {
    409. 

  409. 		$_result	= "";
    410. 

  410. 		$_match		= array();
    411. 

  411. 		$_args		= array();
    412. 

  412. 		$_is_arg_stack	= array();
    413. 

  413. 

  414. 		// extract arguments from the equation
    415. 

  415. 		preg_match_all('/(?>(' . $this->_var_regexp . '|\/?' . $this->_func_regexp . ')(?:' . $this->_mod_regexp . '*)?|\-?0[xX][0-9a-fA-F]+|\-?\d+(?:\.\d+)?|\.\d+|!==|===|==|!=|<>|<<|>>|<=|>=|\&\&|\|\||\(|\)|,|\!|\^|=|\&|\~|<|>|\%|\+|\-|\/|\*|\@|\b\w+\b|\S+)/x', $arguments, $_match);
    416. 

  416. 		$_args = $_match[0];
    417. 

  417. 

  418. 		// make sure we have balanced parenthesis
    419. 

  419. 		$_args_count = array_count_values($_args);
    420. 

  420. 		if(isset($_args_count['(']) && $_args_count['('] != $_args_count[')']) {
    421. 

  421. 			$this->trigger_error("unbalanced parenthesis in if statement", E_USER_ERROR, __FILE__, __LINE__);
    422. 

  422. 		}
    423. 

  423. 

  424. 		for ($i = 0, $for_max = count($_args); $i < $for_max; $i++) {
    425. 

  425. 			$_arg = &$_args[$i];
    426. 

  426. 			switch (strtolower($_arg)) {
    427. 

  427. 				case '!':
    428. 

  428. 				case '%':
    429. 

  429. 				case '!==':
    430. 

  430. 				case '==':
    431. 

  431. 				case '===':
    432. 

  432. 				case '>':
    433. 

  433. 				case '<':
    434. 

  434. 				case '!=':
    435. 

  435. 				case '<>':
    436. 

  436. 				case '<<':
    437. 

  437. 				case '>>':
    438. 

  438. 				case '<=':
    439. 

  439. 				case '>=':
    440. 

  440. 				case '&&':
    441. 

  441. 				case '||':
    442. 

  442. 				case '^':
    443. 

  443. 				case '&':
    444. 

  444. 				case '~':
    445. 

  445. 				case ')':
    446. 

  446. 				case ',':
    447. 

  447. 				case '+':
    448. 

  448. 				case '-':
    449. 

  449. 				case '*':
    450. 

  450. 				case '/':
    451. 

  451. 				case '@':
    452. 

  452. 					break;					
    453. 

  453. 				case 'eq':
    454. 

  454. 					$_arg = '==';
    455. 

  455. 					break;
    456. 

  456. 				case 'ne':
    457. 

  457. 				case 'neq':
    458. 

  458. 					$_arg = '!=';
    459. 

  459. 					break;
    460. 

  460. 				case 'lt':
    461. 

  461. 					$_arg = '<';
    462. 

  462. 					break;
    463. 

  463. 				case 'le':
    464. 

  464. 				case 'lte':
    465. 

  465. 					$_arg = '<=';
    466. 

  466. 					break;
    467. 

  467. 				case 'gt':
    468. 

  468. 					$_arg = '>';
    469. 

  469. 					break;
    470. 

  470. 				case 'ge':
    471. 

  471. 				case 'gte':
    472. 

  472. 					$_arg = '>=';
    473. 

  473. 					break;
    474. 

  474. 				case 'and':
    475. 

  475. 					$_arg = '&&';
    476. 

  476. 					break;
    477. 

  477. 				case 'or':
    478. 

  478. 					$_arg = '||';
    479. 

  479. 					break;
    480. 

  480. 				case 'not':
    481. 

  481. 					$_arg = '!';
    482. 

  482. 					break;
    483. 

  483. 				case 'mod':
    484. 

  484. 					$_arg = '%';
    485. 

  485. 					break;
    486. 

  486. 				case '(':
    487. 

  487. 					array_push($_is_arg_stack, $i);
    488. 

  488. 					break;
    489. 

  489. 				default:
    490. 

  490. 					preg_match('/(?:(' . $this->_var_regexp . '|' . $this->_func_regexp . ')(' . $this->_mod_regexp . '*)(?:\s*[,\.]\s*)?)(?:\s+(.*))?/xs', $_arg, $_match);
    491. 

  491. 					if ($_match[0]{0} == '$' || ($_match[0]{0} == '#' && $_match[0]{strlen($_match[0]) - 1} == '#') || $_match[0]{0} == "'" || $_match[0]{0} == '"') {
    492. 

  492. 						// process a variable
    493. 

  493. 						$_arg = $this->_parse_variables(array($_match[1]), array($_match[2]));
    494. 

  494. 					} elseif (is_numeric($_arg)) {
    495. 

  495. 						// pass the number through
    496. 

  496. 					} elseif (function_exists($_match[0]) || $_match[0] == "empty" || $_match[0] == "isset" || $_match[0] == "unset" || strtolower($_match[0]) == "true" || strtolower($_match[0]) == "false" || strtolower($_match[0]) == "null") {
    497. 

  497. 						// pass the function through
    498. 

  498. 					} else {
    499. 

  499. 						$this->trigger_error("unidentified token '$_arg'", E_USER_ERROR, __FILE__, __LINE__);
    500. 

  500. 					}
    501. 

  501. 					break;
    502. 

  502. 			}
    503. 

  503. 		}
    504. 

  504. 

  505. 		if ($elseif) {
    506. 

  506. 			return '<?php elseif ('.implode(' ', $_args).'): ?>';
    507. 

  507. 		} else {
    508. 

  508. 			return '<?php if ('.implode(' ', $_args).'): ?>';
    509. 

  509. 		}
    510. 

  510. 		return $_result;
    511. 

  511. 	}
    512. 

  512. 

  513. 	function _dequote($string) {
    514. 

  514. 		if (($string{0} == "'" || $string{0} == '"') && $string{strlen($string)-1} == $string{0})
    515. 

  515. 			return substr($string, 1, -1);
    516. 

  516. 		else
    517. 

  517. 			return $string;
    518. 

  518. 	}
    519. 

  519. 

  520. 	function _parse_arguments($arguments) {
    521. 

  521. 		$_match		= array();
    522. 

  522. 		$_result	= array();
    523. 

  523. 		$_variables	= array();
    524. 

  524. 		preg_match_all('/(?:' . $this->_qstr_regexp . ' | (?>[^"\'=\s]+))+|[=]/x', $arguments, $_match);
    525. 

  525. 		/*
    526. 

  526. 		   Parse state:
    527. 

  527. 		     0 - expecting attribute name
    528. 

  528. 		     1 - expecting '='
    529. 

  529. 		     2 - expecting attribute value (not '=')
    530. 

  530. 		*/
    531. 

  531. 		$state = 0;
    532. 

  532. 		foreach($_match[0] as $value) {
    533. 

  533. 			switch($state) {
    534. 

  534. 				case 0:
    535. 

  535. 					// valid attribute name
    536. 

  536. 					if (is_string($value)) {
    537. 

  537. 						$a_name = $value;
    538. 

  538. 						$state = 1;
    539. 

  539. 					} else {
    540. 

  540. 						$this->trigger_error("invalid attribute name: '$token'", E_USER_ERROR, __FILE__, __LINE__);
    541. 

  541. 					}
    542. 

  542. 					break;
    543. 

  543. 				case 1:
    544. 

  544. 					if ($value == '=') {
    545. 

  545. 						$state = 2;
    546. 

  546. 					} else {
    547. 

  547. 						$this->trigger_error("expecting '=' after '$last_value'", E_USER_ERROR, __FILE__, __LINE__);
    548. 

  548. 					}
    549. 

  549. 					break;
    550. 

  550. 				case 2:
    551. 

  551. 					if ($value != '=') {
    552. 

  552. 						if ($value == 'yes' || $value == 'on' || $value == 'true') {
    553. 

  553. 							$value = true;
    554. 

  554. 						} elseif ($value == 'no' || $value == 'off' || $value == 'false') {
    555. 

  555. 							$value = false;
    556. 

  556. 						} elseif ($value == 'null') {
    557. 

  557. 							$value = null;
    558. 

  558. 						}
    559. 

  559. 

  560. 						if(!preg_match_all('/(?:(' . $this->_var_regexp . ')(' . $this->_mod_regexp . '*))(?:\s+(.*))?/xs', $value, $_variables)) {
    561. 

  561. 							$_result[$a_name] = $value;
    562. 

  562. 						} else {
    563. 

  563. 							$_result[$a_name] = $this->_parse_variables($_variables[1], $_variables[2]);
    564. 

  564. 						}
    565. 

  565. 						$state = 0;
    566. 

  566. 					} else {
    567. 

  567. 						$this->trigger_error("'=' cannot be an attribute value", E_USER_ERROR, __FILE__, __LINE__);
    568. 

  568. 					}
    569. 

  569. 					break;
    570. 

  570. 			}
    571. 

  571. 			$last_value = $value;
    572. 

  572. 		}
    573. 

  573. 		if($state != 0) {
    574. 

  574. 			if($state == 1) {
    575. 

  575. 				$this->trigger_error("expecting '=' after attribute name '$last_value'", E_USER_ERROR, __FILE__, __LINE__);
    576. 

  576. 			} else {
    577. 

  577. 				$this->trigger_error("missing attribute value", E_USER_ERROR, __FILE__, __LINE__);
    578. 

  578. 			}
    579. 

  579. 		}
    580. 

  580. 		return $_result;
    581. 

  581. 	}
    582. 

  582. 

  583. 	function _parse_variables($variables, $modifiers) {
    584. 

  584. 		$_result = "";
    585. 

  585. 		foreach($variables as $key => $value) {
    586. 

  586. 			$tag_variable = trim($variables[$key]);
    587. 

  587. 			if (empty($modifiers[$key])) {
    588. 

  588. 				$_result .= $this->_parse_variable($tag_variable).'.';
    589. 

  589. 			} else {
    590. 

  590. 				$_result .= $this->_parse_modifier($this->_parse_variable($tag_variable), $modifiers[$key]).'.';
    591. 

  591. 			}
    592. 

  592. 		}
    593. 

  593. 		return substr($_result, 0, -1);
    594. 

  594. 	}
    595. 

  595. 

  596. 	function _parse_variable($variable) {
    597. 

  597. 		// replace variable with value
    598. 

  598. 		if ($variable{0} == "\$") {
    599. 

  599. 			// replace the variable
    600. 

  600. 			return $this->_compile_variable($variable);
    601. 

  601. 		} elseif ($variable{0} == '#') {
    602. 

  602. 			// replace the config variable
    603. 

  603. 			return $this->_compile_config($variable);
    604. 

  604. 		} elseif ($variable{0} == '"') {
    605. 

  605. 			// expand the quotes to pull any variables out of it
    606. 

  606. 			// fortunately variables inside of a quote aren't fancy, no modifiers, no quotes
    607. 

  607. 			//   just get everything from the $ to the ending space and parse it
    608. 

  608. 			// if the $ is escaped, then we won't expand it
    609. 

  609. 			$_result = "";
    610. 

  610. 			preg_match_all('/(?:[^\\\]' . $this->_dvar_regexp . ')/', substr($variable, 1, -1), $_expand);
    611. 

  611. 			$_expand = array_unique($_expand[0]);
    612. 

  612. 			foreach($_expand as $key => $value) {
    613. 

  613. 				$_expand[$key] = trim($value);
    614. 

  614. 				if (strpos($_expand[$key], '$') > 0) {
    615. 

  615. 					$_expand[$key] = substr($_expand[$key], strpos($_expand[$key], '$'));
    616. 

  616. 				}
    617. 

  617. 			}
    618. 

  618. 			$_result = $variable;
    619. 

  619. 			foreach($_expand as $value) {
    620. 

  620. 				$value = trim($value);
    621. 

  621. 				$_result = str_replace($value, '" . ' . $this->_parse_variable($value) . ' . "', $_result);
    622. 

  622. 			}
    623. 

  623. 			return $_result;
    624. 

  624. 		} elseif ($variable{0} == "'") {
    625. 

  625. 			// return the value just as it is
    626. 

  626. 			return $variable;
    627. 

  627. 		} else {
    628. 

  628. 			// return it as is; i believe that there was a reason before that i did not just return it as is,
    629. 

  629. 			// but i forgot what that reason is ...
    630. 

  630. 			// the reason i return the variable 'as is' right now is so that unquoted literals are allowed
    631. 

  631. 			return $variable;
    632. 

  632. 		}
    633. 

  633. 	}
    634. 

  634. 

  635. 	function _compile_variable($variable) {
    636. 

  636. 		$_result	= "";
    637. 

  637. 

  638. 		// remove the $
    639. 

  639. 		$variable = substr($variable, 1);
    640. 

  640. 

  641. 		// get [foo] and .foo and (...) pieces			
    642. 

  642. 		preg_match_all('!(?:^\w+)|(?:' . $this->_var_bracket_regexp . ')|\.\$?\w+|\S+!', $variable, $_match);
    643. 

  643. 		$variable = $_match[0];
    644. 

  644. 		$var_name = array_shift($variable);
    645. 

  645. 

  646. 		if ($var_name == '_TPL') {
    647. 

  647. 			if ($variable[0]{0} == '[') {
    648. 

  648. 				switch($variable[0]) {
    649. 

  649. 					case '[GET]':
    650. 

  650. 						$_result = "\$_GET";
    651. 

  651. 						break;
    652. 

  652. 					case '[POST]':
    653. 

  653. 						$_result = "\$_POST";
    654. 

  654. 						break;
    655. 

  655. 					case '[COOKIE]':
    656. 

  656. 						$_result = "\$_COOKIE";
    657. 

  657. 						break;
    658. 

  658. 					case '[ENV]':
    659. 

  659. 						$_result = "\$_ENV";
    660. 

  660. 						break;
    661. 

  661. 					case '[SERVER]':
    662. 

  662. 						$_result = "\$_SERVER";
    663. 

  663. 						break;
    664. 

  664. 					case '[SESSION]':
    665. 

  665. 						$_result = "\$_SESSION";
    666. 

  666. 						break;
    667. 

  667. 					case '[NOW]':
    668. 

  668. 						$_result = "time()";
    669. 

  669. 						break;
    670. 

  670. 					default:
    671. 

  671. 						$this->trigger_error('$' . $var_name.implode('', $variable) . ' is an invalid $_TPL reference', E_USER_ERROR, __FILE__, __LINE__);
    672. 

  672. 						break;
    673. 

  673. 				}
    674. 

  674. 				array_shift($variable);
    675. 

  675. 			} else {
    676. 

  676. 				$this->trigger_error('$' . $var_name.implode('', $variable) . ' is an invalid $_TPL reference', E_USER_ERROR, __FILE__, __LINE__);
    677. 

  677. 			}
    678. 

  678. 		} else {
    679. 

  679. 			$_result = "\$this->_vars['$var_name']";
    680. 

  680. 		}
    681. 

  681. 

  682. 		foreach ($variable as $var) {
    683. 

  683. 			if ($var{0} == '[') {
    684. 

  684. 				$var = substr($var, 1, -1);
    685. 

  685. 				if (is_numeric($var)) {
    686. 

  686. 					$_result .= "[$var]";
    687. 

  687. 				} elseif ($var{0} == '$') {
    688. 

  688. 					$_result .= "[" . $this->_compile_variable($var) . "]";
    689. 

  689. 				} elseif ($var{0} == '#') {
    690. 

  690. 					$_result .= "[" . $this->_compile_config($var) . "]";
    691. 

  691. 				} else {
    692. 

  692. 					$_result .= "['$var']";
    693. 

  693. 				}
    694. 

  694. 			} else {
    695. 

  695. 				$this->trigger_error('$' . $var_name.implode('', $variable) . ' is an invalid reference', E_USER_ERROR, __FILE__, __LINE__);
    696. 

  696. 			}
    697. 

  697. 		}
    698. 

  698. 		return $_result;
    699. 

  699. 	}
    700. 

  700. 

  701. 	function _compile_config($variable) {
    702. 

  702. 		$_result	= "";
    703. 

  703. 

  704. 		// remove the beginning and ending #
    705. 

  705. 		$variable = substr($variable, 1, -1);
    706. 

  706. 

  707. 		// get [foo] and .foo and (...) pieces			
    708. 

  708. 		preg_match_all('!(?:^\w+)|(?:' . $this->_var_bracket_regexp . ')|\.\$?\w+|\S+!', $variable, $_match);
    709. 

  709. 		$variable = $_match[0];
    710. 

  710. 		$var_name = array_shift($variable);
    711. 

  711. 

  712. 		$_result = "\$this->_confs['$var_name']";
    713. 

  713. 		foreach ($variable as $var) {
    714. 

  714. 			if ($var{0} == '[') {
    715. 

  715. 				$var = substr($var, 1, -1);
    716. 

  716. 				if (is_numeric($var)) {
    717. 

  717. 					$_result .= "[$var]";
    718. 

  718. 				} elseif ($var{0} == '$') {
    719. 

  719. 					$_result .= "[" . $this->_compile_variable($var) . "]";
    720. 

  720. 				} elseif ($var{0} == '#') {
    721. 

  721. 					$_result .= "[" . $this->_compile_config($var) . "]";
    722. 

  722. 				} else {
    723. 

  723. 					$_result .= "['$var']";
    724. 

  724. 				}
    725. 

  725. 			} else {
    726. 

  726. 				$this->trigger_error('#' . $var_name.implode('', $variable) . '# is an invalid reference', E_USER_ERROR, __FILE__, __LINE__);
    727. 

  727. 			}
    728. 

  728. 		}
    729. 

  729. 		return $_result;
    730. 

  730. 	}
    731. 

  731. 

  732. 	function _parse_modifier($variable, $modifiers) {
    733. 

  733. 		$_match		= array();
    734. 

  734. 		$_mods		= array();		// stores all modifiers
    735. 

  735. 		$_args		= array();		// modifier arguments
    736. 

  736. 

  737. 		preg_match_all('!\|(@?\w+)((?>:(?:'. $this->_qstr_regexp . '|[^|]+))*)!', '|' . $modifiers, $_match);
    738. 

  738. 		list(, $_mods, $_args) = $_match;
    739. 

  739. 

  740. 		for ($i = 0, $for_max = count($_mods); $i < $for_max; $i++) {
    741. 

  741. 			preg_match_all('!:(' . $this->_qstr_regexp . '|[^:]+)!', $_args[$i], $_match);
    742. 

  742. 			$_arg = $_match[1];
    743. 

  743. 

  744. 			if ($_mods[$i]{0} == '@') {
    745. 

  745. 				$_mods[$i] = substr($_mods[$i], 1);
    746. 

  746. 				$_map_array = 0;
    747. 

  747. 			} else {
    748. 

  748. 				$_map_array = 1;
    749. 

  749. 			}
    750. 

  750. 

  751. 			foreach($_arg as $key => $value)
    752. 

  752. 				$_arg[$key] = $this->_parse_variable($value);
    753. 

  753. 

  754. 			if ($this->_plugin_exists($_mods[$i], "modifier")) {
    755. 

  755. 				if (count($_arg) > 0)
    756. 

  756. 					$_arg = ', '.implode(', ', $_arg);
    757. 

  757. 				else
    758. 

  758. 					$_arg = '';
    759. 

  759. 				$variable = "\$this->_run_modifier($variable, '$_mods[$i]', $_map_array$_arg)";
    760. 

  760. 			} else {
    761. 

  761. 				$variable = "\$this->trigger_error(\"'" . $_mods[$i] . "' modifier does not exist\", E_USER_NOTICE, __FILE__, __LINE__);";
    762. 

  762. 			}
    763. 

  763. 		}
    764. 

  764. 		return $variable;
    765. 

  765. 	}
    766. 

  766. 

  767. 	function _plugin_exists($function, $type) {
    768. 

  768. 		// check for object functions
    769. 

  769. 		if (isset($this->_plugins[$type][$function]) && is_array($this->_plugins[$type][$function]) && is_object($this->_plugins[$type][$function][0]) && method_exists($this->_plugins[$type][$function][0], $this->_plugins[$type][$function][1]))
    770. 

  770. 			return '$this->_plugins[\'' . $type . '\'][\'' . $function . '\'][0]->' . $this->_plugins[$type][$function][1];
    771. 

  771. 		// check for standard functions
    772. 

  772. 		if (isset($this->_plugins[$type][$function]) && function_exists($this->_plugins[$type][$function]))
    773. 

  773. 			return $this->_plugins[$type][$function];
    774. 

  774. 		// check for a plugin in the plugin directory
    775. 

  775. 		if (file_exists($this->_get_plugin_dir() . $type . '.' . $function . '.php')) {
    776. 

  776. 			require_once($this->_get_plugin_dir() . $type . '.' . $function . '.php');
    777. 

  777. 			if (function_exists('tpl_' . $type . '_' . $function)) {
    778. 

  778. 				$this->_require_stack[$type . '.' . $function . '.php'] = array($type, $function, 'tpl_' . $type . '_' . $function);
    779. 

  779. 				return ('tpl_' . $type . '_' . $function);
    780. 

  780. 			}
    781. 

  781. 		}
    782. 

  782. 		return false;
    783. 

  783. 	}
    784. 

  784. 

  785. 	function _get_plugin_dir() {
    786. 

  786. 		static $plugin_dir;
    787. 

  787. 		if (isset($plugin_dir)) return $plugin_dir;
    788. 

  788. 

  789. 		$this->plugin_dir = $this->_get_dir($this->plugin_dir);
    790. 

  790. 		if (!preg_match("/^([\/\\\\]|[a-zA-Z]:[\/\\\\])/", $this->plugin_dir)) {
    791. 

  791. 			// path is relative
    792. 

  792. 			$plugin_dir = dirname(__FILE__).DIRECTORY_SEPARATOR.$this->plugin_dir;
    793. 

  793. 		} else {
    794. 

  794. 			// path is absolute
    795. 

  795. 			$plugin_dir = str_replace('\\', '\\\\', $this->plugin_dir);
    796. 

  796. 		}
    797. 

  797. 		return $plugin_dir;
    798. 

  798. 	}
    799. 

  799. }
    800. 

  800. ?>
    801. 

  801.