From de13d68cddef5bb321469bcffb868f27ddd5390e Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Sun, 12 Mar 2023 15:12:10 +0900
Subject: style: add .highlight class to pre tag

---
 nuldoc-src/docbook/to_html.ts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'nuldoc-src/docbook/to_html.ts')

diff --git a/nuldoc-src/docbook/to_html.ts b/nuldoc-src/docbook/to_html.ts
index 6788158..64d3492 100644
--- a/nuldoc-src/docbook/to_html.ts
+++ b/nuldoc-src/docbook/to_html.ts
@@ -192,6 +192,8 @@ function transformProgramListingElement(doc: Document) {
     }
 
     n.name = "pre";
+    const preClass = n.attributes.get("class");
+    n.attributes.set("class", preClass ? preClass + " highlight" : "highlight");
     const codeElement: Element = {
       kind: "element",
       name: "code",
@@ -209,12 +211,13 @@ function transformLiteralLayoutElement(doc: Document) {
     }
 
     n.name = "pre";
-    const children = n.children;
+    const preClass = n.attributes.get("class");
+    n.attributes.set("class", preClass ? preClass + " highlight" : "highlight");
     const codeElement: Element = {
       kind: "element",
       name: "code",
       attributes: new Map(),
-      children: children,
+      children: n.children,
     };
     n.children = [codeElement];
   });
-- 
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