Add comment as requested

larowlan · larowlan · commit a0ec0fe40240 · 2015-01-06T19:37:09.000+10:00
diff --git a/src/Symfony/Component/Yaml/Escaper.php b/src/Symfony/Component/Yaml/Escaper.php
@@ -108,6 +108,8 @@ private static function containsCharRequiresSingleQuoting($value)
      */
     private static function isValueRequiresSingleQuoting($value)
     {
+        // Note that whilst 'y' and 'n' are not supported as valid Booleans,
+        // they are escaped here for interoperability.
         return in_array(strtolower($value), array('null', '~', 'true', 'false', 'y', 'n', 'yes', 'no', 'on', 'off'));
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -108,6 +108,8 @@ private static function containsCharRequiresSingleQuoting($value)`
`108`	`108`	`*/`
`109`	`109`	`private static function isValueRequiresSingleQuoting($value)`
`110`	`110`	`{`
	`111`	`+ // Note that whilst 'y' and 'n' are not supported as valid Booleans,`
	`112`	`+ // they are escaped here for interoperability.`
`111`	`113`	`return in_array(strtolower($value), array('null', '~', 'true', 'false', 'y', 'n', 'yes', 'no', 'on', 'off'));`
`112`	`114`	`}`
`113`	`115`	`}`