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<? |
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/* |
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* Project: Smarty: the PHP compiling template engine |
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* File: Smarty.class.php |
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* Author: Monte Ohrt <monte@ispi.net> |
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* Andrei Zmievski <andrei@ispi.net> |
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* |
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* Version: 1.2.2 |
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* Copyright: 2001 ispi of Lincoln, Inc. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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* |
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* You may contact the authors of Smarty by e-mail at: |
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* monte@ispi.net |
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* andrei@ispi.net |
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* |
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* Or, write to: |
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* Monte Ohrt |
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* CTO, ispi |
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* 237 S. 70th suite 220 |
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* Lincoln, NE 68510 |
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* |
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* The latest version of Smarty can be obtained from: |
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* http://www.phpinsider.com/ |
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* |
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*/ |
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|
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require("Smarty.addons.php"); |
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|
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class Smarty |
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{ |
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|
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// public vars |
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var $compile_check = true; // whether to check for compiling step or not: |
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// This is generally set to false once the |
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// application is entered into production and |
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// initially compiled. Leave set to true |
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// during development. |
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|
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var $template_dir = "./templates"; // name of directory for templates |
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var $compile_dir = "./templates_c"; // name of directory for compiled templates |
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|
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|
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var $tpl_file_ext = ".tpl"; // template file extentions |
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|
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var $allow_php = false; // whether or not to allow embedded php |
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// in the templates. By default, php tags |
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// are escaped. |
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var $left_delimiter = "{"; // template tag delimiters. |
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var $right_delimiter = "}"; |
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|
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var $config_dir = "./configs"; // directory where config files are located |
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|
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var $custom_funcs = array( 'html_options' => 'smarty_func_html_options', |
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'html_select_date' => 'smarty_func_html_select_date', |
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'img' => 'smarty_func_img' |
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); |
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|
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var $custom_mods = array( 'lower' => 'strtolower', |
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'upper' => 'strtoupper', |
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'capitalize' => 'ucwords', |
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'escape' => 'smarty_mod_escape', |
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'truncate' => 'smarty_mod_truncate', |
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'spacify' => 'smarty_mod_spacify', |
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'date_format' => 'smarty_mod_date_format', |
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'string_format' => 'smarty_mod_string_format', |
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'replace' => 'smarty_mod_replace', |
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'strip_tags' => 'smarty_mod_strip_tags', |
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'default' => 'smarty_mod_default' |
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); |
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var $global_assign = array( 'SCRIPT_NAME' |
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); |
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|
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// internal vars |
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var $_error_msg = false; // error messages |
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var $_tpl_vars = array(); |
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var $_sectionelse_stack = array(); // keeps track of whether section had 'else' part |
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var $_literal_blocks = array(); // keeps literal template blocks |
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var $_current_file = null; // the current template being compiled |
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var $_current_line_no = 1; // line number for error messages |
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|
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|
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/*======================================================================*\ |
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Function: Smarty |
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Purpose: Constructor |
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\*======================================================================*/ |
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function Smarty() |
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{ |
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foreach ($this->global_assign as $var_name) |
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$this->assign($var_name, $GLOBALS[$var_name]); |
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} |
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|
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|
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/*======================================================================*\ |
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Function: assign() |
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Purpose: assigns values to template variables |
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\*======================================================================*/ |
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|
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function assign($tpl_var, $value = NULL) |
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{ |
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if (is_array($tpl_var)){ |
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foreach ($tpl_var as $key => $val) { |
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if (!empty($key)) |
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$this->_tpl_vars[$key] = $val; |
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} |
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} else { |
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if (!empty($tpl_var) && isset($value)) |
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$this->_tpl_vars[$tpl_var] = $value; |
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} |
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} |
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|
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|
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/*======================================================================*\ |
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Function: append |
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Purpose: appens values to template variables |
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\*======================================================================*/ |
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function append($tpl_var, $value = NULL) |
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{ |
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if (is_array($tpl_var)) { |
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foreach ($tpl_var as $key => $val) { |
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if (!empty($key)) { |
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if (!is_array($this->_tpl_vars[$key])) |
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settype($this->_tpl_vars[$key], 'array'); |
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$this->_tpl_vars[$key][] = $val; |
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} |
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} |
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} else { |
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if (!empty($tpl_var) && isset($value)) { |
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if (!is_array($this->_tpl_vars[$tpl_var])) |
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settype($this->_tpl_vars[$tpl_var], 'array'); |
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$this->_tpl_vars[$tpl_var][] = $value; |
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} |
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} |
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} |
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|
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|
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/*======================================================================*\ |
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Function: clear_assign() |
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Purpose: clear the given assigned template variable. |
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\*======================================================================*/ |
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|
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function clear_assign($tpl_var) |
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{ |
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unset($this->_tpl_vars[$tpl_var]); |
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} |
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|
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/*======================================================================*\ |
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Function: clear_all_assign() |
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Purpose: clear all the assigned template variables. |
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\*======================================================================*/ |
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|
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function clear_all_assign() |
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{ |
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$this->_tpl_vars = array(); |
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} |
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|
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|
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/*======================================================================*\ |
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Function: get_template_vars |
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Purpose: Returns an array containing template variables |
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\*======================================================================*/ |
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function &get_template_vars() |
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{ |
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return $this->_tpl_vars; |
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} |
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|
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|
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/*======================================================================*\ |
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Function: display() |
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Purpose: executes & displays the template results |
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\*======================================================================*/ |
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|
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function display($tpl_file) |
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{ |
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// compile files |
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$this->_compile($this->template_dir); |
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//assemble compile directory path to file |
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$_compile_file = $this->compile_dir.'/'.$tpl_file.'.php'; |
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|
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extract($this->_tpl_vars); |
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include($_compile_file); |
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} |
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|
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/*======================================================================*\ |
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Function: fetch() |
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Purpose: executes & returns the template results |
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\*======================================================================*/ |
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|
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function fetch($tpl_file) |
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{ |
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ob_start(); |
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$this->display($tpl_file); |
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$results = ob_get_contents(); |
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ob_end_clean(); |
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return $results; |
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} |
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|
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/*======================================================================*\ |
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Function: compile() |
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Purpose: called to compile the templates |
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\*======================================================================*/ |
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|
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function _compile($tpl_dir) |
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{ |
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if($this->compile_check) |
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{ |
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if($this->_traverse_files($tpl_dir, 0)) |
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return true; |
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else |
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return false; |
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} |
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else |
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return false; |
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} |
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|
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/*======================================================================*\ |
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Function: _traverse_files() |
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Purpose: traverse the template files & process each one |
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\*======================================================================*/ |
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|
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function _traverse_files($tpl_dir, $depth) |
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{ |
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if(is_dir($tpl_dir)) { |
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if($tpl_dir) |
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$dir_handle = opendir($tpl_dir); |
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|
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while($curr_file = readdir($dir_handle)) { |
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if ($curr_file == '.' || $curr_file == '..') |
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continue; |
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|
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$filepath = $tpl_dir."/".$curr_file; |
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if(is_readable($filepath)) { |
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if(is_file($filepath) && preg_match('!' . preg_quote($this->tpl_file_ext, '!') . '$!', $curr_file)) { |
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if(!$this->_process_file($filepath)) |
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return false; |
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} else if(is_dir($filepath)) { |
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if(!$this->_traverse_files($filepath, $depth + 1)) |
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return false; |
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} else { |
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// invalid file type, skipping |
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$this->_set_error_msg("Invalid filetype for $filepath, skipping"); |
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continue; |
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} |
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} |
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} |
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} else { |
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$this->_set_error_msg("Directory \"$tpl_dir\" does not exist or is not a directory."); |
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return false; |
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} |
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|
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return true; |
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} |
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|
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/*======================================================================*\ |
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Function: _process_file() |
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Input: test template files for modifications |
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and execute the compilation for each |
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one requiring it. |
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\*======================================================================*/ |
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|
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function _process_file($filepath) |
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{ |
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if(preg_match("/^(.+)\/([^\/]+)$/", $filepath, $match)) { |
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$tpl_file_dir = $match[1]; |
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$tpl_file_name = $match[2] . ".php"; |
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|
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$compile_dir = preg_replace('!^' . preg_quote($this->template_dir, '!') . '!', |
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$this->compile_dir, $match[1]); |
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|
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//create directory if none exists |
283 |
if(!file_exists($compile_dir)) { |
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$compile_dir_parts = preg_split('!/+!', $compile_dir); |
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$new_dir = ""; |
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foreach ($compile_dir_parts as $dir_part) { |
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$new_dir .= $dir_part."/"; |
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if (!file_exists($new_dir) && !mkdir($new_dir, 0755)) { |
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$this->_set_error_msg("problem creating directory \"$compile_dir\""); |
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return false; |
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} |
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} |
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} |
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|
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// compile the template file if none exists or has been modified |
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if (!file_exists($compile_dir."/".$tpl_file_name) || |
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($this->_modified_file($filepath, $compile_dir."/".$tpl_file_name))) { |
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if (!$this->_compile_file($filepath, $compile_dir."/".$tpl_file_name)) |
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return false; |
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} else { |
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// no compilation needed |
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return true; |
303 |
} |
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} else { |
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$this->_set_error_msg("problem matching \"$filepath.\""); |
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return false; |
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} |
308 |
|
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return true; |
310 |
} |
311 |
|
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/*======================================================================*\ |
313 |
Function: _modified_file() |
314 |
Input: return comparison of modification times of files |
315 |
\*======================================================================*/ |
316 |
|
317 |
function _modified_file($filepath, $compilepath) |
318 |
{ |
319 |
if(filemtime($filepath) >= filemtime($compilepath)) |
320 |
return true; |
321 |
return false; |
322 |
} |
323 |
|
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/*======================================================================*\ |
325 |
Function: _compile_file() |
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Input: compile a template file |
327 |
\*======================================================================*/ |
328 |
|
329 |
function _compile_file($filepath, $compilepath) |
330 |
{ |
331 |
if (!($template_contents = $this->_read_file($filepath))) |
332 |
return false; |
333 |
|
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$this->_current_file = str_replace($this->template_dir . "/", "", $filepath); |
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$this->_current_line_no = 1; |
336 |
$ldq = preg_quote($this->left_delimiter, '!'); |
337 |
$rdq = preg_quote($this->right_delimiter, '!'); |
338 |
|
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/* Pull out the literal blocks. */ |
340 |
preg_match_all("!{$ldq}literal{$rdq}(.*?){$ldq}/literal{$rdq}!s", $template_contents, $match); |
341 |
$this->_literal_blocks = $match[1]; |
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$template_contents = preg_replace("!{$ldq}literal{$rdq}(.*?){$ldq}/literal{$rdq}!s", |
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'{literal}', $template_contents); |
344 |
|
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/* Gather all template tags. */ |
346 |
preg_match_all("!{$ldq}\s*(.*?)\s*{$rdq}!s", $template_contents, $match); |
347 |
$template_tags = $match[1]; |
348 |
/* Split content by template tags to obtain non-template content. */ |
349 |
$text_blocks = preg_split("!{$ldq}.*?{$rdq}!s", $template_contents); |
350 |
if(!$this->allow_php) { |
351 |
/* Escape php tags. */ |
352 |
$text_blocks = preg_replace('!<\?([^?]*?)\?>!', '<?$1?>', $text_blocks); |
353 |
} |
354 |
|
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/* Compile the template tags into PHP code. */ |
356 |
$compiled_tags = array(); |
357 |
for ($i = 0; $i < count($template_tags); $i++) { |
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$this->_current_line_no += substr_count($text_blocks[$i], "\n"); |
359 |
$compiled_tags[] = $this->_compile_tag($template_tags[$i]); |
360 |
$this->_current_line_no += substr_count($template_tags[$i], "\n"); |
361 |
} |
362 |
|
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$compiled_contents = ""; |
364 |
|
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/* Interleave the compiled contents and text blocks to get the final result. */ |
366 |
for ($i = 0; $i < count($compiled_tags); $i++) { |
367 |
$compiled_contents .= $text_blocks[$i].$compiled_tags[$i]; |
368 |
} |
369 |
$compiled_contents .= $text_blocks[$i]; |
370 |
|
371 |
/* Reformat data between 'strip' and '/strip' tags, removing spaces, tabs and newlines. */ |
372 |
if (preg_match_all("!{$ldq}strip{$rdq}.*?{$ldq}/strip{$rdq}!s", $compiled_contents, $match)) { |
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$strip_tags = $match[0]; |
374 |
$strip_tags_modified = preg_replace("!{$ldq}/?strip{$rdq}|[\t ]+$|^[\t ]+!m", '', $strip_tags); |
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$strip_tags_modified = preg_replace('![\r\n]+!m', '', $strip_tags_modified); |
376 |
for ($i = 0; $i < count($strip_tags); $i++) |
377 |
$compiled_contents = preg_replace("!{$ldq}strip{$rdq}.*?{$ldq}/strip{$rdq}!s", |
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$strip_tags_modified[$i], $compiled_contents, 1); |
379 |
} |
380 |
|
381 |
if(!$this->_write_file($compilepath, $compiled_contents)) |
382 |
return false; |
383 |
|
384 |
return true; |
385 |
} |
386 |
|
387 |
function _compile_tag($template_tag) |
388 |
{ |
389 |
/* Matched comment. */ |
390 |
if ($template_tag{0} == '*' && $template_tag{strlen($template_tag)-1} == '*') |
391 |
return ""; |
392 |
|
393 |
/* Split tag into two parts: command and the arguments. */ |
394 |
preg_match('/^( |
395 |
(?:"[^"\\\\]*(?:\\\\.[^"\\\\]*)*" | \'[^\'\\\\]*(?:\\\\.[^\'\\\\]*)*\' | (?>[^"\'\s]+))+ |
396 |
) |
397 |
(?:\s+(.*))? |
398 |
/xs', $template_tag, $match); |
399 |
list(, $tag_command, $tag_args) = $match; |
400 |
|
401 |
/* If the tag name matches a variable or section property definition, |
402 |
we simply process it. */ |
403 |
if (preg_match('!^\$(\w+/)*\w+(?>\.\w+)*(?>\|@?\w+(:[^|]+)?)*$!', $tag_command) || // if a variable |
404 |
preg_match('!^#(\w+)#(?>\|@?\w+(:[^|]+)?)*$!', $tag_command) || // or a configuration variable |
405 |
preg_match('!^%\w+\.\w+%(?>\|@?\w+(:[^|]+)?)*$!', $tag_command)) { // or a section property |
406 |
settype($tag_command, 'array'); |
407 |
$this->_parse_vars_props($tag_command); |
408 |
return "<?php print $tag_command[0]; ?>"; |
409 |
} |
410 |
|
411 |
switch ($tag_command) { |
412 |
case 'include': |
413 |
return $this->_compile_include_tag($tag_args); |
414 |
|
415 |
case 'if': |
416 |
return $this->_compile_if_tag($tag_args); |
417 |
|
418 |
case 'else': |
419 |
return '<?php else: ?>'; |
420 |
|
421 |
case 'elseif': |
422 |
return $this->_compile_if_tag($tag_args, true); |
423 |
|
424 |
case '/if': |
425 |
return '<?php endif; ?>'; |
426 |
|
427 |
case 'ldelim': |
428 |
return $this->left_delimiter; |
429 |
|
430 |
case 'rdelim': |
431 |
return $this->right_delimiter; |
432 |
|
433 |
case 'section': |
434 |
array_push($this->_sectionelse_stack, false); |
435 |
return $this->_compile_section_start($tag_args); |
436 |
|
437 |
case 'sectionelse': |
438 |
$this->_sectionelse_stack[count($this->_sectionelse_stack)-1] = true; |
439 |
return "<?php endfor; else: ?>"; |
440 |
|
441 |
case '/section': |
442 |
if (array_pop($this->_sectionelse_stack)) |
443 |
return "<?php endif; ?>"; |
444 |
else |
445 |
return "<?php endfor; endif; ?>"; |
446 |
|
447 |
case 'config_load': |
448 |
return $this->_compile_config_load_tag($tag_args); |
449 |
|
450 |
case 'strip': |
451 |
case '/strip': |
452 |
return $this->left_delimiter.$tag_command.$this->right_delimiter; |
453 |
|
454 |
case 'literal': |
455 |
list (,$literal_block) = each($this->_literal_blocks); |
456 |
$this->_current_line_no += substr_count($literal_block, "\n"); |
457 |
return $literal_block; |
458 |
|
459 |
case 'insert': |
460 |
return $this->_compile_insert_tag($tag_args); |
461 |
|
462 |
default: |
463 |
if (isset($this->custom_funcs[$tag_command])) { |
464 |
return $this->_compile_custom_tag($tag_command, $tag_args); |
465 |
} else { |
466 |
$this->_syntax_error("unknown tag - '$tag_command'", E_USER_WARNING); |
467 |
return ""; |
468 |
} |
469 |
} |
470 |
} |
471 |
|
472 |
|
473 |
function _compile_custom_tag($tag_command, $tag_args) |
474 |
{ |
475 |
$attrs = $this->_parse_attrs($tag_args); |
476 |
$function = $this->custom_funcs[$tag_command]; |
477 |
foreach ($attrs as $arg_name => $arg_value) { |
478 |
if (is_bool($arg_value)) |
479 |
$arg_value = $arg_value ? 'true' : 'false'; |
480 |
$arg_list[] = "'$arg_name' => $arg_value"; |
481 |
} |
482 |
|
483 |
return "<?php $function(array(".implode(',', (array)$arg_list).")); ?>"; |
484 |
} |
485 |
|
486 |
|
487 |
function _compile_insert_tag($tag_args) |
488 |
{ |
489 |
$attrs = $this->_parse_attrs($tag_args); |
490 |
$name = substr($attrs['name'], 1, -1); |
491 |
|
492 |
if (empty($name)) { |
493 |
$this->_syntax_error("missing insert name"); |
494 |
} |
495 |
|
496 |
foreach ($attrs as $arg_name => $arg_value) { |
497 |
if ($arg_name == 'name') continue; |
498 |
if (is_bool($arg_value)) |
499 |
$arg_value = $arg_value ? 'true' : 'false'; |
500 |
$arg_list[] = "'$arg_name' => $arg_value"; |
501 |
} |
502 |
|
503 |
return "<?php print insert_$name(array(".implode(',', (array)$arg_list).")); ?>"; |
504 |
} |
505 |
|
506 |
|
507 |
function _compile_config_load_tag($tag_args) |
508 |
{ |
509 |
$attrs = $this->_parse_attrs($tag_args); |
510 |
|
511 |
if (empty($attrs['file'])) { |
512 |
$this->_syntax_error("missing 'file' attribute in config_load tag"); |
513 |
} |
514 |
|
515 |
$output = "<?php if (!class_exists('Config_File'))\n" . |
516 |
" include_once 'Config_File.class.php';\n" . |
517 |
"if (!is_object(\$_conf_obj) || get_class(\$_conf_obj) != 'config_file') {\n" . |
518 |
" \$_conf_obj = new Config_File('".$this->config_dir."');\n" . |
519 |
"}\n" . |
520 |
"\$_config = array_merge((array)\$_config, \$_conf_obj->get(".$attrs['file']."));\n"; |
521 |
|
522 |
if (!empty($attrs['section'])) |
523 |
$output .= '$_config = array_merge((array)$_config, $_conf_obj->get('.$attrs['file'].', '.$attrs['section'].')); '; |
524 |
|
525 |
$output .= '?>'; |
526 |
|
527 |
return $output; |
528 |
} |
529 |
|
530 |
|
531 |
function _compile_include_tag($tag_args) |
532 |
{ |
533 |
$attrs = $this->_parse_attrs($tag_args); |
534 |
|
535 |
if (empty($attrs['file'])) { |
536 |
$this->_syntax_error("missing 'file' attribute in include tag"); |
537 |
} else |
538 |
$attrs['file'] = $this->_dequote($attrs['file']); |
539 |
|
540 |
if (count($attrs) > 1) { |
541 |
$include_func_name = uniqid("_include_"); |
542 |
$include_file_name = $this->compile_dir.'/'.$attrs['file']; |
543 |
|
544 |
foreach ($attrs as $arg_name => $arg_value) { |
545 |
if ($arg_name == 'file') continue; |
546 |
if (is_bool($arg_value)) |
547 |
$arg_value = $arg_value ? 'true' : 'false'; |
548 |
$arg_list[] = "'$arg_name' => $arg_value"; |
549 |
} |
550 |
|
551 |
return "<?php " . |
552 |
"function $include_func_name(\$file_name, \$def_vars, \$include_vars)\n" . |
553 |
"{\n" . |
554 |
" extract(\$def_vars);\n" . |
555 |
" extract(\$include_vars);\n" . |
556 |
" include \"\$file_name.php\";\n" . |
557 |
"}\n" . |
558 |
"$include_func_name(\"$include_file_name\", get_defined_vars(), array(".implode(',', (array)$arg_list)."));\n?>\n"; |
559 |
} else |
560 |
return '<?php include "'.$this->compile_dir.'/'.$attrs['file'].'.php"; ?>'; |
561 |
} |
562 |
|
563 |
function _compile_section_start($tag_args) |
564 |
{ |
565 |
$attrs = $this->_parse_attrs($tag_args); |
566 |
|
567 |
$output = "<?php "; |
568 |
$section_name = $attrs['name']; |
569 |
if (empty($section_name)) { |
570 |
$this->_syntax_error("missing section name"); |
571 |
} |
572 |
|
573 |
$output .= "unset(\$_sections[$section_name]);\n"; |
574 |
$section_props = "\$_sections[$section_name]['properties']"; |
575 |
|
576 |
foreach ($attrs as $attr_name => $attr_value) { |
577 |
switch ($attr_name) { |
578 |
case 'loop': |
579 |
$output .= "{$section_props}['loop'] = is_array($attr_value) ? count($attr_value) : $attr_value;\n"; |
580 |
break; |
581 |
|
582 |
case 'show': |
583 |
if (is_bool($attr_value)) |
584 |
$attr_value = $attr_value ? 'true' : 'false'; |
585 |
$output .= "{$section_props}['$attr_name'] = $attr_value;\n"; |
586 |
break; |
587 |
|
588 |
default: |
589 |
$output .= "{$section_props}['$attr_name'] = $attr_value;\n"; |
590 |
break; |
591 |
} |
592 |
} |
593 |
|
594 |
if (isset($attrs['loop'])) { |
595 |
$loop_check_code = "{$section_props}['loop'] > 0 && "; |
596 |
} else { |
597 |
$output .= "{$section_props}['loop'] = 1; #-fix- \n"; |
598 |
} |
599 |
|
600 |
if (isset($attrs['show'])) { |
601 |
$show_check_code = "{$section_props}['show'] && "; |
602 |
} else { |
603 |
$output .= "{$section_props}['show'] = {$section_props}['loop'] > 0;\n"; |
604 |
} |
605 |
|
606 |
$output .= "if ($loop_check_code $show_check_code true): "; |
607 |
|
608 |
$output .= " |
609 |
for ({$section_props}['index'] = 0; |
610 |
{$section_props}['index'] < {$section_props}['loop']; |
611 |
{$section_props}['index']++):\n"; |
612 |
$output .= "{$section_props}['rownum'] = {$section_props}['index'] + 1;\n"; |
613 |
|
614 |
$output .= "?>\n"; |
615 |
|
616 |
return $output; |
617 |
} |
618 |
|
619 |
function _compile_if_tag($tag_args, $elseif = false) |
620 |
{ |
621 |
/* Tokenize args for 'if' tag. */ |
622 |
preg_match_all('/(?: |
623 |
"[^"\\\\]*(?:\\\\.[^"\\\\]*)*" | # match all double quoted strings allowed escaped double quotes |
624 |
\'[^\'\\\\]*(?:\\\\.[^\'\\\\]*)*\' | # match all single quoted strings allowed escaped single quotes |
625 |
[()] | # match parentheses |
626 |
[^"\'\s()]+ # match any other token that is not any of the above |
627 |
)/x', $tag_args, $match); |
628 |
$tokens = $match[0]; |
629 |
|
630 |
$this->_parse_vars_props($tokens); |
631 |
|
632 |
$is_arg_stack = array(); |
633 |
|
634 |
for ($i = 0; $i < count($tokens); $i++) { |
635 |
$token = &$tokens[$i]; |
636 |
switch ($token) { |
637 |
case 'eq': |
638 |
$token = '=='; |
639 |
break; |
640 |
|
641 |
case 'ne': |
642 |
case 'neq': |
643 |
$token = '!='; |
644 |
break; |
645 |
|
646 |
case 'lt': |
647 |
$token = '<'; |
648 |
break; |
649 |
|
650 |
case 'le': |
651 |
case 'lte': |
652 |
$token = '<='; |
653 |
break; |
654 |
|
655 |
case 'gt': |
656 |
$token = '>'; |
657 |
break; |
658 |
|
659 |
case 'ge': |
660 |
case 'gte': |
661 |
$token = '>='; |
662 |
break; |
663 |
|
664 |
case 'and': |
665 |
$token = '&&'; |
666 |
break; |
667 |
|
668 |
case 'or': |
669 |
$token = '||'; |
670 |
break; |
671 |
|
672 |
case 'not': |
673 |
$token = '!'; |
674 |
break; |
675 |
|
676 |
case 'mod': |
677 |
$token = '%'; |
678 |
break; |
679 |
|
680 |
case '(': |
681 |
array_push($is_arg_stack, $i); |
682 |
break; |
683 |
|
684 |
case 'is': |
685 |
/* If last token was a ')', we operate on the parenthesized |
686 |
expression. The start of the expression is on the stack. |
687 |
Otherwise, we operate on the last encountered token. */ |
688 |
if ($tokens[$i-1] == ')') |
689 |
$is_arg_start = array_pop($is_arg_stack); |
690 |
else |
691 |
$is_arg_start = $i-1; |
692 |
/* Construct the argument for 'is' expression, so it knows |
693 |
what to operate on. */ |
694 |
$is_arg = implode(' ', array_slice($tokens, $is_arg_start, $i - $is_arg_start)); |
695 |
|
696 |
/* Pass all tokens from next one until the end to the |
697 |
'is' expression parsing function. The function will |
698 |
return modified tokens, where the first one is the result |
699 |
of the 'is' expression and the rest are the tokens it |
700 |
didn't touch. */ |
701 |
$new_tokens = $this->_parse_is_expr($is_arg, array_slice($tokens, $i+1)); |
702 |
|
703 |
/* Replace the old tokens with the new ones. */ |
704 |
array_splice($tokens, $is_arg_start, count($tokens), $new_tokens); |
705 |
|
706 |
/* Adjust argument start so that it won't change from the |
707 |
current position for the next iteration. */ |
708 |
$i = $is_arg_start; |
709 |
break; |
710 |
} |
711 |
} |
712 |
|
713 |
if ($elseif) |
714 |
return '<?php elseif ('.implode(' ', $tokens).'): ?>'; |
715 |
else |
716 |
return '<?php if ('.implode(' ', $tokens).'): ?>'; |
717 |
} |
718 |
|
719 |
function _parse_is_expr($is_arg, $tokens) |
720 |
{ |
721 |
$expr_end = 0; |
722 |
|
723 |
if (($first_token = array_shift($tokens)) == 'not') { |
724 |
$negate_expr = true; |
725 |
$expr_type = array_shift($tokens); |
726 |
} else |
727 |
$expr_type = $first_token; |
728 |
|
729 |
switch ($expr_type) { |
730 |
case 'even': |
731 |
if ($tokens[$expr_end] == 'by') { |
732 |
$expr_end++; |
733 |
$expr_arg = $tokens[$expr_end++]; |
734 |
$expr = "!(($is_arg / $expr_arg) % $expr_arg)"; |
735 |
} |
736 |
else |
737 |
$expr = "!($is_arg % 2)"; |
738 |
break; |
739 |
|
740 |
case 'odd': |
741 |
if ($tokens[$expr_end] == 'by') { |
742 |
$expr_end++; |
743 |
$expr_arg = $tokens[$expr_end++]; |
744 |
$expr = "(($is_arg / $expr_arg) % $expr_arg)"; |
745 |
} |
746 |
else |
747 |
$expr = "($is_arg % 2)"; |
748 |
break; |
749 |
|
750 |
case 'div': |
751 |
if ($tokens[$expr_end] == 'by') { |
752 |
$expr_end++; |
753 |
$expr_arg = $tokens[$expr_end++]; |
754 |
$expr = "!($is_arg % $expr_arg)"; |
755 |
} else { |
756 |
$this->_syntax_error("expecting 'by' after 'div'"); |
757 |
} |
758 |
break; |
759 |
|
760 |
default: |
761 |
$this->_syntax_error("unknown 'is' expression - '$expr_type'"); |
762 |
break; |
763 |
} |
764 |
|
765 |
if ($negate_expr) { |
766 |
$expr = "!($expr)"; |
767 |
} |
768 |
|
769 |
array_splice($tokens, 0, $expr_end, $expr); |
770 |
|
771 |
return $tokens; |
772 |
} |
773 |
|
774 |
function _parse_attrs($tag_args) |
775 |
{ |
776 |
/* Tokenize tag attributes. */ |
777 |
preg_match_all('/(?:"[^"\\\\]*(?:\\\\.[^"\\\\]*)*" | |
778 |
\'[^\'\\\\]*(?:\\\\.[^\'\\\\]*)*\' | (?>[^"\'=\s]+) |
779 |
)+ | |
780 |
[=] |
781 |
/x', $tag_args, $match); |
782 |
$tokens = $match[0]; |
783 |
$var_delims = array('$', '#', '%'); |
784 |
|
785 |
$attrs = array(); |
786 |
/* Parse state: |
787 |
0 - expecting attr name |
788 |
1 - expecting '=' or another attr name |
789 |
2 - expecting attr value (not '=') */ |
790 |
$state = 0; |
791 |
|
792 |
foreach ($tokens as $token) { |
793 |
switch ($state) { |
794 |
case 0: |
795 |
/* If the token is a valid identifier, we set attribute name |
796 |
and go to state 1. */ |
797 |
if (preg_match('!\w+!', $token)) { |
798 |
$attr_name = $token; |
799 |
$state = 1; |
800 |
} else |
801 |
$this->_syntax_error("invalid attribute name - '$token'"); |
802 |
break; |
803 |
|
804 |
case 1: |
805 |
/* If the token is a valid identifier, the previously set |
806 |
attribute name does not need an argument. We put it in |
807 |
the attrs array, set the new attribute name to the |
808 |
current token and don't switch state. |
809 |
|
810 |
If the token is '=', then we go to state 2. */ |
811 |
if ($token == '=') { |
812 |
$state = 2; |
813 |
} else |
814 |
$this->_syntax_error("expecting '=' after attribute name"); |
815 |
break; |
816 |
|
817 |
case 2: |
818 |
/* If token is not '=', we set the attribute value and go to |
819 |
state 0. */ |
820 |
if ($token != '=') { |
821 |
/* We booleanize the token if it's a non-quoted possible |
822 |
boolean value. */ |
823 |
if (preg_match('!^(on|yes|true)$!', $token)) |
824 |
$token = true; |
825 |
else if (preg_match('!^(off|no|false)$!', $token)) |
826 |
$token = false; |
827 |
/* If the token is not variable (doesn't start with |
828 |
'$', '#', or '%') and not enclosed in single or |
829 |
double quotes we single-quote it. */ |
830 |
else if (!in_array($token{0}, $var_delims) && |
831 |
!(($token{0} == '"' || $token[0] == "'") && |
832 |
$token{strlen($token)-1} == $token{0})) |
833 |
$token = "'".$token."'"; |
834 |
|
835 |
$attrs[$attr_name] = $token; |
836 |
$state = 0; |
837 |
} else |
838 |
$this->_syntax_error("'=' cannot be an attribute value"); |
839 |
break; |
840 |
} |
841 |
} |
842 |
|
843 |
$this->_parse_vars_props($attrs); |
844 |
|
845 |
return $attrs; |
846 |
} |
847 |
|
848 |
function _preg_grep($pattern, $array) |
849 |
{ |
850 |
$result = array(); |
851 |
|
852 |
foreach ($array as $key => $entry) { |
853 |
if (preg_match($pattern, $entry)) |
854 |
$result[$key] = $entry; |
855 |
} |
856 |
|
857 |
return $result; |
858 |
} |
859 |
|
860 |
function _parse_vars_props(&$tokens) |
861 |
{ |
862 |
/* preg_grep() was fixed to return keys properly in 4.0.4 and later. To |
863 |
allow people to use older versions of PHP we emulate preg_grep() and |
864 |
use the version check to see what function to call. */ |
865 |
if (strnatcmp(PHP_VERSION, '4.0.4') >= 0) { |
866 |
$var_exprs = preg_grep('!^\$(\w+/)*\w+(?>\.\w+)*(?>\|@?\w+(:[^|]+)?)*$!', $tokens); |
867 |
$conf_var_exprs = preg_grep('!^#(\w+)#(?>\|@?\w+(:[^|]+)?)*$!', $tokens); |
868 |
$sect_prop_exprs = preg_grep('!^%\w+\.\w+%(?>\|@?\w+(:[^|]+)?)*$!', $tokens); |
869 |
} else { |
870 |
$var_exprs = $this->_preg_grep('!^\$(\w+/)*\w+(?>\.\w+)*(?>\|@?\w+(:[^|]+)?)*$!', $tokens); |
871 |
$conf_var_exprs = $this->_preg_grep('!^#(\w+)#(?>\|@?\w+(:[^|]+)?)*$!', $tokens); |
872 |
$sect_prop_exprs = $this->_preg_grep('!^%\w+\.\w+%(?>\|@?\w+(:[^|]+)?)*$!', $tokens); |
873 |
} |
874 |
|
875 |
if (count($var_exprs)) { |
876 |
foreach ($var_exprs as $expr_index => $var_expr) { |
877 |
$tokens[$expr_index] = $this->_parse_var($var_expr); |
878 |
} |
879 |
} |
880 |
|
881 |
if (count($conf_var_exprs)) { |
882 |
foreach ($conf_var_exprs as $expr_index => $var_expr) { |
883 |
$tokens[$expr_index] = $this->_parse_conf_var($var_expr); |
884 |
} |
885 |
} |
886 |
|
887 |
if (count($sect_prop_exprs)) { |
888 |
foreach ($sect_prop_exprs as $expr_index => $section_prop_expr) { |
889 |
$tokens[$expr_index] = $this->_parse_section_prop($section_prop_expr); |
890 |
} |
891 |
} |
892 |
} |
893 |
|
894 |
function _parse_var($var_expr) |
895 |
{ |
896 |
$modifiers = explode('|', substr($var_expr, 1)); |
897 |
|
898 |
$sections = explode('/', array_shift($modifiers)); |
899 |
$props = explode('.', array_pop($sections)); |
900 |
$var_name = array_shift($props); |
901 |
|
902 |
$output = "\$$var_name"; |
903 |
|
904 |
foreach ($sections as $section) { |
905 |
$output .= "[\$_sections['$section']['properties']['index']]"; |
906 |
} |
907 |
foreach ($props as $prop) { |
908 |
$output .= "['$prop']"; |
909 |
} |
910 |
|
911 |
$this->_parse_modifiers($output, $modifiers); |
912 |
|
913 |
return $output; |
914 |
} |
915 |
|
916 |
function _parse_conf_var($conf_var_expr) |
917 |
{ |
918 |
$modifiers = explode('|', $conf_var_expr); |
919 |
|
920 |
$var_name = substr(array_shift($modifiers), 1, -1); |
921 |
|
922 |
$output = "\$_config['$var_name']"; |
923 |
|
924 |
$this->_parse_modifiers($output, $modifiers); |
925 |
|
926 |
return $output; |
927 |
} |
928 |
|
929 |
function _parse_section_prop($section_prop_expr) |
930 |
{ |
931 |
$modifiers = explode('|', $section_prop_expr); |
932 |
|
933 |
preg_match('!%(\w+)\.(\w+)%!', array_shift($modifiers), $match); |
934 |
$section_name = $match[1]; |
935 |
$prop_name = $match[2]; |
936 |
|
937 |
$output = "\$_sections['$section_name']['properties']['$prop_name']"; |
938 |
|
939 |
$this->_parse_modifiers($output, $modifiers); |
940 |
|
941 |
return $output; |
942 |
} |
943 |
|
944 |
function _parse_modifiers(&$output, $modifiers) |
945 |
{ |
946 |
foreach ($modifiers as $modifier) { |
947 |
$modifier = explode(':', $modifier); |
948 |
$modifier_name = array_shift($modifier); |
949 |
|
950 |
if ($modifier_name{0} == '@') { |
951 |
$map_array = 'false'; |
952 |
$modifier_name = substr($modifier_name, 1); |
953 |
} else |
954 |
$map_array = 'true'; |
955 |
|
956 |
/* |
957 |
* First we lookup the modifier function name in the registered |
958 |
* modifiers table. |
959 |
*/ |
960 |
$mod_func_name = $this->custom_mods[$modifier_name]; |
961 |
|
962 |
/* |
963 |
* If we don't find that modifier there, we assume it's just a PHP |
964 |
* function name. |
965 |
*/ |
966 |
if (!isset($mod_func_name)) |
967 |
$mod_func_name = $modifier_name; |
968 |
|
969 |
$this->_parse_vars_props($modifier); |
970 |
|
971 |
if (count($modifier) > 0) |
972 |
$modifier_args = ', '.implode(', ', $modifier); |
973 |
else |
974 |
$modifier_args = ''; |
975 |
|
976 |
$output = "_smarty_mod_handler('$mod_func_name', $map_array, $output$modifier_args)"; |
977 |
} |
978 |
} |
979 |
|
980 |
|
981 |
/*======================================================================*\ |
982 |
Function: _dequote |
983 |
Purpose: Remove starting and ending quotes from the string |
984 |
\*======================================================================*/ |
985 |
function _dequote($string) |
986 |
{ |
987 |
if (($string{0} == "'" || $string{0} == '"') && |
988 |
$string{strlen($string)-1} == $string{0}) |
989 |
return substr($string, 1, -1); |
990 |
} |
991 |
|
992 |
|
993 |
/*======================================================================*\ |
994 |
Function: _read_file() |
995 |
Purpose: read in a file |
996 |
\*======================================================================*/ |
997 |
|
998 |
function _read_file($filename) |
999 |
{ |
1000 |
if(!($fd = fopen($filename, 'r'))) { |
1001 |
$this->_set_error_msg("problem reading '$filename.'"); |
1002 |
return false; |
1003 |
} |
1004 |
$contents = fread($fd, filesize($filename)); |
1005 |
fclose($fd); |
1006 |
return $contents; |
1007 |
} |
1008 |
|
1009 |
/*======================================================================*\ |
1010 |
Function: _write_file() |
1011 |
Purpose: write out a file |
1012 |
\*======================================================================*/ |
1013 |
|
1014 |
function _write_file($filename,$contents) |
1015 |
{ |
1016 |
if(!($fd = fopen($filename, 'w'))) { |
1017 |
$this->_set_error_msg("problem writing '$filename.'"); |
1018 |
return false; |
1019 |
} |
1020 |
fwrite($fd, $contents); |
1021 |
fclose($fd); |
1022 |
return true; |
1023 |
} |
1024 |
|
1025 |
/*======================================================================*\ |
1026 |
Function: _set_error_msg() |
1027 |
Purpose: set the error message |
1028 |
\*======================================================================*/ |
1029 |
|
1030 |
function _set_error_msg($error_msg) |
1031 |
{ |
1032 |
$this->_error_msg="smarty error: $error_msg"; |
1033 |
return true; |
1034 |
} |
1035 |
|
1036 |
/*======================================================================*\ |
1037 |
Function: _syntax_error |
1038 |
Purpose: display Smarty syntax error |
1039 |
\*======================================================================*/ |
1040 |
function _syntax_error($error_msg, $error_type = E_USER_ERROR) |
1041 |
{ |
1042 |
trigger_error("Smarty: [in " . $this->_current_file . " line " . |
1043 |
$this->_current_line_no . "]: syntax error: $error_msg", $error_type); |
1044 |
} |
1045 |
} |
1046 |
|
1047 |
?> |