fix

book/node_modules/highlight.js/lib/languages/protobuf.js

@@ -0,0 +1,79 @@
+/*
+Language: Protocol Buffers
+Author: Dan Tao <daniel.tao@gmail.com>
+Description: Protocol buffer message definition format
+Website: https://developers.google.com/protocol-buffers/docs/proto3
+Category: protocols
+*/
+
+function protobuf(hljs) {
+  const KEYWORDS = [
+    "package",
+    "import",
+    "option",
+    "optional",
+    "required",
+    "repeated",
+    "group",
+    "oneof"
+  ];
+  const TYPES = [
+    "double",
+    "float",
+    "int32",
+    "int64",
+    "uint32",
+    "uint64",
+    "sint32",
+    "sint64",
+    "fixed32",
+    "fixed64",
+    "sfixed32",
+    "sfixed64",
+    "bool",
+    "string",
+    "bytes"
+  ];
+  const CLASS_DEFINITION = {
+    match: [
+      /(message|enum|service)\s+/,
+      hljs.IDENT_RE
+    ],
+    scope: {
+      1: "keyword",
+      2: "title.class"
+    }
+  };
+
+  return {
+    name: 'Protocol Buffers',
+    aliases: ['proto'],
+    keywords: {
+      keyword: KEYWORDS,
+      type: TYPES,
+      literal: [
+        'true',
+        'false'
+      ]
+    },
+    contains: [
+      hljs.QUOTE_STRING_MODE,
+      hljs.NUMBER_MODE,
+      hljs.C_LINE_COMMENT_MODE,
+      hljs.C_BLOCK_COMMENT_MODE,
+      CLASS_DEFINITION,
+      {
+        className: 'function',
+        beginKeywords: 'rpc',
+        end: /[{;]/,
+        excludeEnd: true,
+        keywords: 'rpc returns'
+      },
+      { // match enum items (relevance)
+        // BLAH = ...;
+        begin: /^\s*[A-Z_]+(?=\s*=[^\n]+;$)/ }
+    ]
+  };
+}
+
+module.exports = protobuf;