added translations filter to filter by matching placeholder counts

1 files changed, 81 insertions, 0 deletions

diff --git a/core/Translate/Filter/ByParameterCount.php b/core/Translate/Filter/ByParameterCount.php
new file mode 100644
index 0000000000..6b0f90f90b
--- /dev/null
+++ b/core/Translate/Filter/ByParameterCount.php
@@ -0,0 +1,81 @@
+<?php
+/**
+ * Piwik - Open source web analytics
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ * @category Piwik
+ * @package Piwik
+ */
+
+namespace Piwik\Translate\Filter;
+
+use Piwik\Translate\Filter\FilterAbstract;
+
+/**
+ * @package Piwik
+ * @subpackage Piwik_Translate
+ */
+class ByParameterCount extends FilterAbstract
+{
+    /**
+     * Filter the given translations
+     *
+     * @param array $translations
+     *
+     * @return array   filtered translations
+     *
+     */
+    public function filter($translations)
+    {
+        $cleanedTranslations = array();
+
+        foreach ($translations AS $pluginName => $pluginTranslations) {
+
+            foreach ($pluginTranslations AS $key => $translation) {
+
+                if (isset($this->_baseTranslations[$pluginName][$key])) {
+                    $baseTranslation  = $this->_baseTranslations[$pluginName][$key];
+                } else {
+                    $baseTranslation = '';
+                }
+
+                // ensure that translated strings have the same number of %s as the english source strings
+                $baseCount        = $this->_getParametersCountToReplace($baseTranslation);
+                $translationCount = $this->_getParametersCountToReplace($translation);
+
+                if ($baseCount != $translationCount)  {
+
+                    $this->_filteredData[$pluginName][$key] = $translation;
+                    continue;
+                }
+
+                $cleanedTranslations[$pluginName][$key] = $translation;
+            }
+        }
+
+        return $cleanedTranslations;
+    }
+
+    /**
+     * Counts the placeholder parameters n given string
+     *
+     * @param string $string
+     * @return array
+     */
+    protected  function _getParametersCountToReplace($string)
+    {
+        $sprintfParameters = array('%s', '%1$s', '%2$s', '%3$s', '%4$s', '%5$s', '%6$s', '%7$s', '%8$s', '%9$s');
+        $count = array();
+        foreach ($sprintfParameters as $parameter) {
+
+            $placeholderCount = substr_count($string, $parameter);
+            if ($placeholderCount > 0) {
+
+                $count[$parameter] = $placeholderCount;
+            }
+        }
+        return $count;
+    }
+}
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