fix

book/node_modules/honkit/lib/output/modifiers/highlightCode.js

@@ -0,0 +1,59 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const is_1 = __importDefault(require("is"));
+const immutable_1 = __importDefault(require("immutable"));
+const promise_1 = __importDefault(require("../../utils/promise"));
+const editHTMLElement_1 = __importDefault(require("./editHTMLElement"));
+/**
+ Return language for a code blocks from a list of class names
+
+ @param {Array<String>}
+ @return {string}
+ */
+function getLanguageForClass(classNames) {
+    return immutable_1.default.List(classNames)
+        .map((cl) => {
+        // Markdown
+        // @ts-expect-error ts-migrate(2339) FIXME: Property 'search' does not exist on type 'unknown'... Remove this comment to see the full error message
+        if (cl.search("lang-") === 0) {
+            // @ts-expect-error ts-migrate(2339) FIXME: Property 'slice' does not exist on type 'unknown'.
+            return cl.slice("lang-".length);
+        }
+        // Asciidoc
+        // @ts-expect-error ts-migrate(2339) FIXME: Property 'search' does not exist on type 'unknown'... Remove this comment to see the full error message
+        if (cl.search("language-") === 0) {
+            // @ts-expect-error ts-migrate(2339) FIXME: Property 'slice' does not exist on type 'unknown'.
+            return cl.slice("language-".length);
+        }
+        return null;
+    })
+        .find((cl) => {
+        return Boolean(cl);
+    });
+}
+/**
+ Highlight all code elements
+
+ @param {Function(lang, body) -> String} highlight
+ @param {HTMLDom} $
+ @return {Promise}
+ */
+function highlightCode(highlight, $) {
+    return (0, editHTMLElement_1.default)($, "code", ($code) => {
+        const classNames = ($code.attr("class") || "").split(" ");
+        const lang = getLanguageForClass(classNames);
+        const source = $code.text();
+        return (0, promise_1.default)(highlight(lang, source)).then((r) => {
+            if (is_1.default.string(r.html)) {
+                $code.html(r.html);
+            }
+            else {
+                $code.text(r.text);
+            }
+        });
+    });
+}
+exports.default = highlightCode;