Update Po.php

Function to Escape Control Characters like EOT from strings.

Author: Krato

src/Generators/Po.php

@@ -49,24 +49,34 @@ public static function toString(Translations $translations)
                 $lines[] = 'msgctxt '.self::quote($translation->getContext());
             }
 
-            self::addLines($lines, 'msgid', $translation->getOriginal());
-
+            self::addLines($lines, 'msgid', self::removeEOT($translation->getOriginal()));
             if ($translation->hasPlural()) {
-                self::addLines($lines, 'msgid_plural', $translation->getPlural());
-                self::addLines($lines, 'msgstr[0]', $translation->getTranslation());
-
+                self::addLines($lines, 'msgid_plural', self::removeEOT($translation->getPlural()));
+                self::addLines($lines, 'msgstr[0]', self::removeEOT($translation->getTranslation()));
+                
                 foreach ($translation->getPluralTranslation() as $k => $v) {
                     self::addLines($lines, 'msgstr['.($k + 1).']', $v);
                 }
             } else {
-                self::addLines($lines, 'msgstr', $translation->getTranslation());
+                self::addLines($lines, 'msgstr', self::removeEOT($translation->getTranslation()));
             }
 
             $lines[] = '';
         }
 
         return implode("\n", $lines);
     }
+    
+    /**
+     * Escape Control Characters like EOT from strings
+     * 
+     * @param  string $text
+     * 
+     * @return string
+     */
+    private static function removeEOT($text){
+        return  preg_replace('/[\x00-\x09\x0B\x0C\x0E-\x1F\x7F]/', '', $text);
+    }
 
     /**
      * Escapes and adds double quotes to a string