Show Language: Added title for plain text (#2555)

Author: RunDevelopment

gulpfile.js/index.js

@@ -160,7 +160,9 @@ async function languagePlugins() {
 }
 
 /** @type {Record<string, string>} */
-const nonNullLanguageMap = {};
+const nonNullLanguageMap = {
+'none': 'Plain text'
+};
 for (const id in languagesMap) {
 const title = languagesMap[id];
 if (title) {

plugins/show-language/index.html

@@ -33,6 +33,9 @@ <h2>HTML (Markup)</h2>
 <h2>SVG</h2>
 <p>The <code class="language-markup">data-language</code> attribute can be used to display a specific label whether it has been defined as a language or not.</p>
 <pre data-language="SVG v1.1" data-src="assets/logo.svg"></pre>
+
+<h2>Plain text</h2>
+<pre class="language-none"><code>Just some text (aka. not code).</code></pre>
 </section>
 
 <footer data-src="assets/templates/footer.html" data-type="text/html"></footer>

plugins/show-language/prism-show-language.js

@@ -12,6 +12,7 @@
 
 // The languages map is built automatically with gulp
 var Languages = /*languages_placeholder[*/{
+"none": "Plain text",
 "html": "HTML",
 "xml": "XML",
 "svg": "SVG",