Fix backslash bug (#915) (#916)

* Fix backslash bug (#915)

* fix

* Update test

Co-authored-by: scenq <me>

src/language/syntax.rs

@@ -570,6 +570,8 @@ impl SyntaxCounter {
             let quote = self.quote.take().unwrap();
             trace!("End {:?}", quote);
             Some(quote.len())
+        } else if !self.quote_is_verbatim && window.starts_with(br"\\") {
+            Some(2)
         } else if !self.quote_is_verbatim
             && window.starts_with(br"\")
             && self

tests/data/java.java

@@ -1,4 +1,4 @@
-/* 23 lines 16 code 4 comments 3 blanks */
+/* 37 lines 23 code 5 comments 9 blanks */
 
 /*
  * Simple test class
@@ -21,3 +21,17 @@ class Foo
       System.out.println("FooBar"); //Not counted
     }
 }
+
+// issues/915
+public class BackSlash {
+    public void run()
+    {
+      "\\"; // 1 code + 2 blanks
+
+
+      "\\"; // 1 code + 3 blanks
+
+
+
+    }
+}