first docs

.yarn/unplugged/highlight.js-npm-9.18.5-571500f48d/node_modules/highlight.js/lib/languages/ebnf.js

@@ -0,0 +1,39 @@
+module.exports = function(hljs) {
+    var commentMode = hljs.COMMENT(/\(\*/, /\*\)/);
+
+    var nonTerminalMode = {
+        className: "attribute",
+        begin: /^[ ]*[a-zA-Z][a-zA-Z-_]*([\s-_]+[a-zA-Z][a-zA-Z]*)*/
+    };
+
+    var specialSequenceMode = {
+        className: "meta",
+        begin: /\?.*\?/
+    };
+
+    var ruleBodyMode = {
+        begin: /=/, end: /[.;]/,
+        contains: [
+            commentMode,
+            specialSequenceMode,
+            {
+              // terminals
+              className: 'string',
+              variants: [
+                hljs.APOS_STRING_MODE,
+                hljs.QUOTE_STRING_MODE,
+                {begin: '`', end: '`'},
+              ]
+            },
+        ]
+    };
+
+    return {
+        illegal: /\S/,
+        contains: [
+            commentMode,
+            nonTerminalMode,
+            ruleBodyMode
+        ]
+    };
+};