headers/private/shared/Json.h

   1 /*
   2  * Copyright 2017, Andrew Lindesay <apl@lindesay.co.nz>
   3  * Copyright 2014, Augustin Cavalier (waddlesplash)
   4  * Distributed under the terms of the MIT License.
   5  */
   6 #ifndef _JSON_H
   7 #define _JSON_H
   8
   9
  10 #include "JsonEventListener.h"
  11
  12 #include <Message.h>
  13 #include <String.h>
  14
  15
  16 namespace BPrivate {
  17
  18 class JsonParseContext;
  19
  20 class BJson {
  21
  22 public:
  23         static  status_t                        Parse(const char* JSON, BMessage& message);
  24         static  status_t                        Parse(const BString& JSON, BMessage& message);
  25         static  void                            Parse(BDataIO* data,
  26                                                                         BJsonEventListener* listener);
  27
  28 private:
  29         static  bool                            NextChar(JsonParseContext& jsonParseContext,
  30                                                                         char* c);
  31         static  bool                            NextNonWhitespaceChar(
  32                                                                         JsonParseContext& jsonParseContext,
  33                                                                         char* c);
  34
  35         static  bool                            ParseAny(JsonParseContext& jsonParseContext);
  36         static  bool                            ParseObjectNameValuePair(
  37                                                                         JsonParseContext& jsonParseContext);
  38         static  bool                            ParseObject(JsonParseContext& jsonParseContext);
  39         static  bool                            ParseArray(JsonParseContext& jsonParseContext);
  40         static  bool                            ParseEscapeUnicodeSequence(
  41                                                                         JsonParseContext& jsonParseContext,
  42                                                                         BString& stringResult);
  43         static  bool                            ParseStringEscapeSequence(
  44                                                                         JsonParseContext& jsonParseContext,
  45                                                                         BString& stringResult);
  46         static  bool                            ParseString(JsonParseContext& jsonParseContext,
  47                                                                         json_event_type eventType);
  48         static  bool                            ParseExpectedVerbatimStringAndRaiseEvent(
  49                                                                         JsonParseContext& jsonParseContext,
  50                                                                         const char* expectedString,
  51                                                                         size_t expectedStringLength,
  52                                                                         char leadingChar,
  53                                                                         json_event_type jsonEventType);
  54         static  bool                            ParseExpectedVerbatimString(
  55                                                                         JsonParseContext& jsonParseContext,
  56                                                                         const char* expectedString,
  57                                                                         size_t expectedStringLength,
  58                                                                         char leadingChar);
  59
  60         static bool                                     IsValidNumber(BString& number);
  61         static bool                                     ParseNumber(JsonParseContext& jsonParseContext);
  62 };
  63
  64 } // namespace BPrivate
  65
  66 using BPrivate::BJson;
  67
  68 #endif  // _JSON_H