From fa10e0945ecd45bfe78a2c8fb015a43092b4944b Mon Sep 17 00:00:00 2001
From: plegall <plg@piwigo.org>
Date: Thu, 10 Dec 2015 14:02:22 +0100
Subject: bug #385 update to smarty-3.1.28-dev (from Github)

---
 include/smarty/libs/plugins/function.math.php | 54 ++++++++++++++-------------
 1 file changed, 29 insertions(+), 25 deletions(-)

(limited to 'include/smarty/libs/plugins/function.math.php')

diff --git a/include/smarty/libs/plugins/function.math.php b/include/smarty/libs/plugins/function.math.php
index f4d3f05ee..aba76e825 100644
--- a/include/smarty/libs/plugins/function.math.php
+++ b/include/smarty/libs/plugins/function.math.php
@@ -1,87 +1,91 @@
 <?php
 /**
  * Smarty plugin
- *
  * This plugin is only for Smarty2 BC
- * @package Smarty
+ *
+ * @package    Smarty
  * @subpackage PluginsFunction
  */
 
 /**
  * Smarty {math} function plugin
- *
  * Type:     function<br>
  * Name:     math<br>
  * Purpose:  handle math computations in template
  *
- * @link http://www.smarty.net/manual/en/language.function.math.php {math}
- *          (Smarty online manual)
+ * @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                    $params   parameters
  * @param Smarty_Internal_Template $template template object
+ *
  * @return string|null
  */
 function smarty_function_math($params, $template)
 {
     static $_allowed_funcs = array(
-        'int' => true, 'abs' => true, 'ceil' => true, 'cos' => true, 'exp' => true, 'floor' => true,
-        'log' => true, 'log10' => true, 'max' => true, 'min' => true, 'pi' => true, 'pow' => true,
-        'rand' => true, 'round' => true, 'sin' => true, 'sqrt' => true, 'srand' => true ,'tan' => true
+        'int'  => true, 'abs' => true, 'ceil' => true, 'cos' => true, 'exp' => true, 'floor' => true,
+        'log'  => true, 'log10' => true, 'max' => true, 'min' => true, 'pi' => true, 'pow' => true,
+        'rand' => true, 'round' => true, 'sin' => true, 'sqrt' => true, 'srand' => true, 'tan' => true
     );
     // be sure equation parameter is present
     if (empty($params['equation'])) {
-        trigger_error("math: missing equation parameter",E_USER_WARNING);
+        trigger_error("math: missing equation parameter", E_USER_WARNING);
+
         return;
     }
 
     $equation = $params['equation'];
 
     // make sure parenthesis are balanced
-    if (substr_count($equation,"(") != substr_count($equation,")")) {
-        trigger_error("math: unbalanced parenthesis",E_USER_WARNING);
+    if (substr_count($equation, "(") != substr_count($equation, ")")) {
+        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);
+    preg_match_all("!(?:0x[a-fA-F0-9]+)|([a-zA-Z][a-zA-Z0-9_]*)!", $equation, $match);
 
-    foreach($match[1] as $curr_var) {
+    foreach ($match[1] as $curr_var) {
         if ($curr_var && !isset($params[$curr_var]) && !isset($_allowed_funcs[$curr_var])) {
-            trigger_error("math: function call $curr_var not allowed",E_USER_WARNING);
+            trigger_error("math: function call $curr_var not allowed", E_USER_WARNING);
+
             return;
         }
     }
 
-    foreach($params as $key => $val) {
+    foreach ($params as $key => $val) {
         if ($key != "equation" && $key != "format" && $key != "assign") {
             // make sure value is not empty
-            if (strlen($val)==0) {
-                trigger_error("math: parameter $key is empty",E_USER_WARNING);
+            if (strlen($val) == 0) {
+                trigger_error("math: parameter $key is empty", E_USER_WARNING);
+
                 return;
             }
             if (!is_numeric($val)) {
-                trigger_error("math: parameter $key: is not numeric",E_USER_WARNING);
+                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.";");
+    eval("\$smarty_math_result = " . $equation . ";");
 
     if (empty($params['format'])) {
         if (empty($params['assign'])) {
             return $smarty_math_result;
         } else {
-            $template->assign($params['assign'],$smarty_math_result);
+            $template->assign($params['assign'], $smarty_math_result);
         }
     } else {
-        if (empty($params['assign'])){
-            printf($params['format'],$smarty_math_result);
+        if (empty($params['assign'])) {
+            printf($params['format'], $smarty_math_result);
         } else {
-            $template->assign($params['assign'],sprintf($params['format'],$smarty_math_result));
+            $template->assign($params['assign'], sprintf($params['format'], $smarty_math_result));
         }
     }
 }
-
-?>
\ No newline at end of file
-- 
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