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@ -18,11 +18,11 @@
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* @author Monte Ohrt <monte at ohrt dot com> |
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* |
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* @param array $params parameters |
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* @param Smarty_Internal_Template $template template object |
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* @param Smarty |
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* |
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* @return string|null |
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*/ |
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function smarty_function_math($params, $template) |
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function smarty_function_math($params, &$smarty) |
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{ |
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static $_allowed_funcs = |
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array('int' => true, 'abs' => true, 'ceil' => true, 'cos' => true, 'exp' => true, 'floor' => true, |
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@ -58,12 +58,28 @@ function smarty_function_math($params, $template)
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return; |
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} |
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foreach ($params as $key => $val) { |
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if ($key != "equation" && $key != "format" && $key != "assign") { |
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// make sure value is not empty |
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if (strlen($val) == 0) { |
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trigger_error("math: parameter '{$key}' is empty", E_USER_WARNING); |
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return; |
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} |
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if (!is_numeric($val)) { |
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trigger_error("math: parameter '{$key}' is not numeric", E_USER_WARNING); |
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return; |
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} |
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} |
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} |
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// match all vars in equation, make sure all are passed |
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preg_match_all('!(?:0x[a-fA-F0-9]+)|([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)!', $equation, $match); |
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foreach ($match[ 1 ] as $curr_var) { |
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if ($curr_var && !isset($params[ $curr_var ]) && !isset($_allowed_funcs[ $curr_var ])) { |
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trigger_error("math: function call $curr_var not allowed", E_USER_WARNING); |
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trigger_error("math: function call '{$curr_var}' not allowed, or missing parameter '{$curr_var}'", E_USER_WARNING); |
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return; |
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} |
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@ -71,17 +87,6 @@ function smarty_function_math($params, $template)
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foreach ($params as $key => $val) { |
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if ($key != "equation" && $key != "format" && $key != "assign") { |
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// make sure value is not empty |
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if (strlen($val) == 0) { |
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trigger_error("math: parameter $key is empty", E_USER_WARNING); |
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return; |
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} |
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if (!is_numeric($val)) { |
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trigger_error("math: parameter $key: is not numeric", E_USER_WARNING); |
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return; |
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} |
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$equation = preg_replace("/\b$key\b/", " \$params['$key'] ", $equation); |
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} |
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} |
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@ -92,13 +97,13 @@ function smarty_function_math($params, $template)
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if (empty($params[ 'assign' ])) { |
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return $smarty_math_result; |
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} else { |
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$template->assign($params[ 'assign' ], $smarty_math_result); |
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$smarty->assign($params[ 'assign' ], $smarty_math_result); |
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} |
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} else { |
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if (empty($params[ 'assign' ])) { |
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printf($params[ 'format' ], $smarty_math_result); |
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} else { |
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$template->assign($params[ 'assign' ], sprintf($params[ 'format' ], $smarty_math_result)); |
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$smarty->assign($params[ 'assign' ], sprintf($params[ 'format' ], $smarty_math_result)); |
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} |
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} |
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} |
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