implement php-format flag #12

Author: oscarotero

src/PhpScanner.php

@@ -4,6 +4,7 @@
 namespace Gettext\Scanner;
 
 use Gettext\Translations;
+use Gettext\Translation;
 
 /**
  * Class to scan PHP files and get gettext translations
@@ -38,4 +39,29 @@ public function getFunctionsScanner(): FunctionsScannerInterface
     {
         return new PhpFunctionsScanner(array_keys($this->functions));
     }
+
+    protected function saveTranslation(
+        ?string $domain,
+        ?string $context,
+        string $original,
+        string $plural = null
+    ): ?Translation {
+        $translation = parent::saveTranslation($domain, $context, $original, $plural);
+
+        if (!$translation) {
+            return null;
+        }
+
+        $original = $translation->getOriginal();
+
+        //Check if it includes a sprintf
+        if (strpos($original, "%") !== false) {
+            // %[argnum$][flags][width][.precision]specifier
+            if (preg_match('/%(\d+\$)?([\-\+\s0]|\'.)?(\d+)?(\.\d+)?[bcdeEfFgGhHosuxX]/', $original)) {
+                $translation->getFlags()->add("php-format");
+            }
+        }
+
+        return $translation;
+    }
 }

tests/PhpScannerTest.php

@@ -48,6 +48,7 @@ public function testPhpCodeScanner()
         $this->assertSame([$file => [75]], $translation->getReferences()->toArray());
         $this->assertCount(1, $translation->getExtractedComments());
         $this->assertSame(['i18n Tagged comment on the line before'], $translation->getExtractedComments()->toArray());
+        $this->assertSame(['php-format'], $translation->getFlags()->toArray());
     }
 
     public function testInvalidFunction()