diff options
Diffstat (limited to 'include/smarty/libs/plugins/function.math.php')
| -rw-r--r-- | include/smarty/libs/plugins/function.math.php | 54 |
1 files changed, 28 insertions, 26 deletions
diff --git a/include/smarty/libs/plugins/function.math.php b/include/smarty/libs/plugins/function.math.php index bb78dac22..f4d3f05ee 100644 --- a/include/smarty/libs/plugins/function.math.php +++ b/include/smarty/libs/plugins/function.math.php @@ -1,49 +1,53 @@ <?php /** * Smarty plugin + * + * This plugin is only for Smarty2 BC * @package Smarty - * @subpackage plugins + * @subpackage PluginsFunction */ - /** * Smarty {math} function plugin * * Type: function<br> * Name: math<br> - * Purpose: handle math computations in template<br> - * @link http://smarty.php.net/manual/en/language.function.math.php {math} + * Purpose: handle math computations in template + * + * @link http://www.smarty.net/manual/en/language.function.math.php {math} * (Smarty online manual) * @author Monte Ohrt <monte at ohrt dot com> - * @param array - * @param Smarty - * @return string + * @param array $params parameters + * @param Smarty_Internal_Template $template template object + * @return string|null */ -function smarty_function_math($params, &$smarty) +function smarty_function_math($params, $template) { + static $_allowed_funcs = array( + 'int' => true, 'abs' => true, 'ceil' => true, 'cos' => true, 'exp' => true, 'floor' => true, + 'log' => true, 'log10' => true, 'max' => true, 'min' => true, 'pi' => true, 'pow' => true, + 'rand' => true, 'round' => true, 'sin' => true, 'sqrt' => true, 'srand' => true ,'tan' => true + ); // be sure equation parameter is present if (empty($params['equation'])) { - $smarty->trigger_error("math: missing equation parameter"); + trigger_error("math: missing equation parameter",E_USER_WARNING); return; } - // strip out backticks, not necessary for math - $equation = str_replace('`','',$params['equation']); + $equation = $params['equation']; // make sure parenthesis are balanced if (substr_count($equation,"(") != substr_count($equation,")")) { - $smarty->trigger_error("math: unbalanced parenthesis"); + trigger_error("math: unbalanced parenthesis",E_USER_WARNING); return; } // match all vars in equation, make sure all are passed - preg_match_all("!(?:0x[a-fA-F0-9]+)|([a-zA-Z][a-zA-Z0-9_]+)!",$equation, $match); - $allowed_funcs = array('int','abs','ceil','cos','exp','floor','log','log10', - 'max','min','pi','pow','rand','round','sin','sqrt','srand','tan'); - + preg_match_all("!(?:0x[a-fA-F0-9]+)|([a-zA-Z][a-zA-Z0-9_]*)!",$equation, $match); + foreach($match[1] as $curr_var) { - if ($curr_var && !in_array($curr_var, array_keys($params)) && !in_array($curr_var, $allowed_funcs)) { - $smarty->trigger_error("math: function call $curr_var not allowed"); + if ($curr_var && !isset($params[$curr_var]) && !isset($_allowed_funcs[$curr_var])) { + trigger_error("math: function call $curr_var not allowed",E_USER_WARNING); return; } } @@ -52,34 +56,32 @@ function smarty_function_math($params, &$smarty) if ($key != "equation" && $key != "format" && $key != "assign") { // make sure value is not empty if (strlen($val)==0) { - $smarty->trigger_error("math: parameter $key is empty"); + trigger_error("math: parameter $key is empty",E_USER_WARNING); return; } if (!is_numeric($val)) { - $smarty->trigger_error("math: parameter $key: is not numeric"); + trigger_error("math: parameter $key: is not numeric",E_USER_WARNING); return; } $equation = preg_replace("/\b$key\b/", " \$params['$key'] ", $equation); } } - + $smarty_math_result = null; eval("\$smarty_math_result = ".$equation.";"); if (empty($params['format'])) { if (empty($params['assign'])) { return $smarty_math_result; } else { - $smarty->assign($params['assign'],$smarty_math_result); + $template->assign($params['assign'],$smarty_math_result); } } else { if (empty($params['assign'])){ printf($params['format'],$smarty_math_result); } else { - $smarty->assign($params['assign'],sprintf($params['format'],$smarty_math_result)); + $template->assign($params['assign'],sprintf($params['format'],$smarty_math_result)); } } } -/* vim: set expandtab: */ - -?> +?>
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