Initial commit.

Signed-off-by: Andreas Widen <aw@luflow.net>

static/highlight/languages/ebnf.js

@@ -0,0 +1,64 @@
+/*! `ebnf` grammar compiled for Highlight.js 11.11.1 */
+  (function(){
+    var hljsGrammar = (function () {
+  'use strict';
+
+  /*
+  Language: Extended Backus-Naur Form
+  Author: Alex McKibben <alex@nullscope.net>
+  Website: https://en.wikipedia.org/wiki/Extended_Backus–Naur_form
+  Category: syntax
+  */
+
+  /** @type LanguageFn */
+  function ebnf(hljs) {
+    const commentMode = hljs.COMMENT(/\(\*/, /\*\)/);
+
+    const nonTerminalMode = {
+      className: "attribute",
+      begin: /^[ ]*[a-zA-Z]+([\s_-]+[a-zA-Z]+)*/
+    };
+
+    const specialSequenceMode = {
+      className: "meta",
+      begin: /\?.*\?/
+    };
+
+    const ruleBodyMode = {
+      begin: /=/,
+      end: /[.;]/,
+      contains: [
+        commentMode,
+        specialSequenceMode,
+        {
+          // terminals
+          className: 'string',
+          variants: [
+            hljs.APOS_STRING_MODE,
+            hljs.QUOTE_STRING_MODE,
+            {
+              begin: '`',
+              end: '`'
+            }
+          ]
+        }
+      ]
+    };
+
+    return {
+      name: 'Extended Backus-Naur Form',
+      illegal: /\S/,
+      contains: [
+        commentMode,
+        nonTerminalMode,
+        ruleBodyMode
+      ]
+    };
+  }
+
+  return ebnf;
+
+})();
+
+    hljs.registerLanguage('ebnf', hljsGrammar);
+  })();