1// CodeMirror, copyright (c) by Marijn Haverbeke and others
 2// Distributed under an MIT license: https://codemirror.net/LICENSE
 3
 4(function(mod) {
 5  if (typeof exports == "object" && typeof module == "object") // CommonJS
 6    mod(require("../../lib/codemirror"));
 7  else if (typeof define == "function" && define.amd) // AMD
 8    define(["../../lib/codemirror"], mod);
 9  else // Plain browser env
10    mod(CodeMirror);
11})(function(CodeMirror) {
12  "use strict";
13
14  function wordRegexp(words) {
15    return new RegExp("^((" + words.join(")|(") + "))\\b", "i");
16  };
17
18  var keywordArray = [
19    "package", "message", "import", "syntax",
20    "required", "optional", "repeated", "reserved", "default", "extensions", "packed",
21    "bool", "bytes", "double", "enum", "float", "string",
22    "int32", "int64", "uint32", "uint64", "sint32", "sint64", "fixed32", "fixed64", "sfixed32", "sfixed64",
23    "option", "service", "rpc", "returns"
24  ];
25  var keywords = wordRegexp(keywordArray);
26
27  CodeMirror.registerHelper("hintWords", "protobuf", keywordArray);
28
29  var identifiers = new RegExp("^[_A-Za-z\xa1-\uffff][_A-Za-z0-9\xa1-\uffff]*");
30
31  function tokenBase(stream) {
32    // whitespaces
33    if (stream.eatSpace()) return null;
34
35    // Handle one line Comments
36    if (stream.match("//")) {
37      stream.skipToEnd();
38      return "comment";
39    }
40
41    // Handle Number Literals
42    if (stream.match(/^[0-9\.+-]/, false)) {
43      if (stream.match(/^[+-]?0x[0-9a-fA-F]+/))
44        return "number";
45      if (stream.match(/^[+-]?\d*\.\d+([EeDd][+-]?\d+)?/))
46        return "number";
47      if (stream.match(/^[+-]?\d+([EeDd][+-]?\d+)?/))
48        return "number";
49    }
50
51    // Handle Strings
52    if (stream.match(/^"([^"]|(""))*"/)) { return "string"; }
53    if (stream.match(/^'([^']|(''))*'/)) { return "string"; }
54
55    // Handle words
56    if (stream.match(keywords)) { return "keyword"; }
57    if (stream.match(identifiers)) { return "variable"; } ;
58
59    // Handle non-detected items
60    stream.next();
61    return null;
62  };
63
64  CodeMirror.defineMode("protobuf", function() {
65    return {
66      token: tokenBase,
67      fold: "brace"
68    };
69  });
70
71  CodeMirror.defineMIME("text/x-protobuf", "protobuf");
72});