WebSVN - ant - Различия - Редакция 2 и 3


<?php
/**
 * Smarty plugin
 * @package Smarty
 * @subpackage plugins
 */


/**
 * 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}
 *          (Smarty online manual)
 * @author   Monte Ohrt <monte at ohrt dot com>
 * @param array
 * @param Smarty
 * @return string
 */
function smarty_function_math($params, &$smarty)
{
    // be sure equation parameter is present
    if (empty($params['equation'])) {
        $smarty->trigger_error("math: missing equation parameter");
        return;
    }

    $equation = $params['equation'];

    // make sure parenthesis are balanced
    if (substr_count($equation,"(") != substr_count($equation,")")) {
        $smarty->trigger_error("math: unbalanced parenthesis");
        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');
   
    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");
            return;
        }
    }

    foreach($params as $key => $val) {
        if ($key != "equation" && $key != "format" && $key != "assign") {
            // make sure value is not empty
            if (strlen($val)==0) {
                $smarty->trigger_error("math: parameter $key is empty");
                return;
            }
            if (!is_numeric($val)) {
                $smarty->trigger_error("math: parameter $key: is not numeric");
                return;
            }
            $equation = preg_replace("/\b$key\b/", " \$params['$key'] ", $equation);
        }
    }

    eval("\$smarty_math_result = ".$equation.";");

    if (empty($params['format'])) {
        if (empty($params['assign'])) {
            return $smarty_math_result;
        } else {
            $smarty->assign($params['assign'],$smarty_math_result);
        }
    } else {
        if (empty($params['assign'])){
            printf($params['format'],$smarty_math_result);
        } else {
            $smarty->assign($params['assign'],sprintf($params['format'],$smarty_math_result));
        }
    }
}

/* vim: set expandtab: */

?>
 

Редакция 2	Редакция 3
1	<?php	1	<?php
2	/**	2	/**
3	* Smarty plugin	3	* Smarty plugin
4	* @package Smarty	4	* @package Smarty
5	* @subpackage plugins	5	* @subpackage plugins
6	*/	6	*/
7		7
8		8
9	/**	9	/**
10	* Smarty {math} function plugin	10	* Smarty {math} function plugin
11	*	11	*
12	* Type: function<br>	12	* Type: function<br>
13	* Name: math<br>	13	* Name: math<br>
14	* Purpose: handle math computations in template<br>	14	* Purpose: handle math computations in template<br>
15	* @link http://smarty.php.net/manual/en/language.function.math.php {math}	15	* @link http://smarty.php.net/manual/en/language.function.math.php {math}
16	* (Smarty online manual)	16	* (Smarty online manual)
17	* @author Monte Ohrt <monte at ohrt dot com>	17	* @author Monte Ohrt <monte at ohrt dot com>
18	* @param array	18	* @param array
19	* @param Smarty	19	* @param Smarty
20	* @return string	20	* @return string
21	*/	21	*/
22	function smarty_function_math($params, &$smarty)	22	function smarty_function_math($params, &$smarty)
23	{	23	{
24	// be sure equation parameter is present	24	// be sure equation parameter is present
25	if (empty($params['equation'])) {	25	if (empty($params['equation'])) {
26	$smarty->trigger_error("math: missing equation parameter");	26	$smarty->trigger_error("math: missing equation parameter");
27	return;	27	return;
28	}	28	}
29		29
30	$equation = $params['equation'];	30	$equation = $params['equation'];
31		31
32	// make sure parenthesis are balanced	32	// make sure parenthesis are balanced
33	if (substr_count($equation,"(") != substr_count($equation,")")) {	33	if (substr_count($equation,"(") != substr_count($equation,")")) {
34	$smarty->trigger_error("math: unbalanced parenthesis");	34	$smarty->trigger_error("math: unbalanced parenthesis");
35	return;	35	return;
36	}	36	}
37		37
38	// match all vars in equation, make sure all are passed	38	// match all vars in equation, make sure all are passed
39	preg_match_all("!(?:0x[a-fA-F0-9]+)\|([a-zA-Z][a-zA-Z0-9_]+)!",$equation, $match);	39	preg_match_all("!(?:0x[a-fA-F0-9]+)\|([a-zA-Z][a-zA-Z0-9_]+)!",$equation, $match);
40	$allowed_funcs = array('int','abs','ceil','cos','exp','floor','log','log10',	40	$allowed_funcs = array('int','abs','ceil','cos','exp','floor','log','log10',
41	'max','min','pi','pow','rand','round','sin','sqrt','srand','tan');	41	'max','min','pi','pow','rand','round','sin','sqrt','srand','tan');
42		42
43	foreach($match[1] as $curr_var) {	43	foreach($match[1] as $curr_var) {
44	if ($curr_var && !in_array($curr_var, array_keys($params)) && !in_array($curr_var, $allowed_funcs)) {	44	if ($curr_var && !in_array($curr_var, array_keys($params)) && !in_array($curr_var, $allowed_funcs)) {
45	$smarty->trigger_error("math: function call $curr_var not allowed");	45	$smarty->trigger_error("math: function call $curr_var not allowed");
46	return;	46	return;
47	}	47	}
48	}	48	}
49		49
50	foreach($params as $key => $val) {	50	foreach($params as $key => $val) {
51	if ($key != "equation" && $key != "format" && $key != "assign") {	51	if ($key != "equation" && $key != "format" && $key != "assign") {
52	// make sure value is not empty	52	// make sure value is not empty
53	if (strlen($val)==0) {	53	if (strlen($val)==0) {
54	$smarty->trigger_error("math: parameter $key is empty");	54	$smarty->trigger_error("math: parameter $key is empty");
55	return;	55	return;
56	}	56	}
57	if (!is_numeric($val)) {	57	if (!is_numeric($val)) {
58	$smarty->trigger_error("math: parameter $key: is not numeric");	58	$smarty->trigger_error("math: parameter $key: is not numeric");
59	return;	59	return;
60	}	60	}
61	$equation = preg_replace("/\b$key\b/", " \$params['$key'] ", $equation);	61	$equation = preg_replace("/\b$key\b/", " \$params['$key'] ", $equation);
62	}	62	}
63	}	63	}
64		64
65	eval("\$smarty_math_result = ".$equation.";");	65	eval("\$smarty_math_result = ".$equation.";");
66		66
67	if (empty($params['format'])) {	67	if (empty($params['format'])) {
68	if (empty($params['assign'])) {	68	if (empty($params['assign'])) {
69	return $smarty_math_result;	69	return $smarty_math_result;
70	} else {	70	} else {
71	$smarty->assign($params['assign'],$smarty_math_result);	71	$smarty->assign($params['assign'],$smarty_math_result);
72	}	72	}
73	} else {	73	} else {
74	if (empty($params['assign'])){	74	if (empty($params['assign'])){
75	printf($params['format'],$smarty_math_result);	75	printf($params['format'],$smarty_math_result);
76	} else {	76	} else {
77	$smarty->assign($params['assign'],sprintf($params['format'],$smarty_math_result));	77	$smarty->assign($params['assign'],sprintf($params['format'],$smarty_math_result));
78	}	78	}
79	}	79	}
80	}	80	}
81		81
82	/* vim: set expandtab: */	82	/* vim: set expandtab: */
83		83
84	?>	84	?>
85		85

Хранилища Subversion ant

(root)/tags/0.1alpha2/function.math.php - Редакция 2 → 3