test highlight: listings mathescape=true

test/highlight/1.md

@@ -12,7 +12,7 @@ Strong **abc**
 
 math test [@lst:math]
 
-```{#lst:math .csharp .mathescape caption="代码中包含数学公式测试"}
+```{#lst:math .csharp .mathescape mathescape=true caption="代码中包含数学公式测试"}
 string title = "This is a Unicode π in the sky"
 /*
 Defined as $\pi=\lim_{n\to\infty}\frac{P_n}{d}$ where $P$ is the perimeter