KPN IoT / kpn_senml

The KPN SenML library helps you create and parse senml documents in both json and cbor format. The library can be used for sending sensor data and receiving actuator commands.

senml_JsonStreamingParser.h@0:a9259748d982, 2018-05-19 (annotated)

Committer:
kpniot
Date:
Sat May 19 17:35:20 2018 +0000
Revision:
0:a9259748d982
first commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kpniot 0:a9259748d982 1 /**The MIT License (MIT)
kpniot 0:a9259748d982 2
kpniot 0:a9259748d982 3 Copyright (c) 2015 by Daniel Eichhorn
kpniot 0:a9259748d982 4
kpniot 0:a9259748d982 5 Permission is hereby granted, free of charge, to any person obtaining a copy
kpniot 0:a9259748d982 6 of this software and associated documentation files (the "Software"), to deal
kpniot 0:a9259748d982 7 in the Software without restriction, including without limitation the rights
kpniot 0:a9259748d982 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
kpniot 0:a9259748d982 9 copies of the Software, and to permit persons to whom the Software is
kpniot 0:a9259748d982 10 furnished to do so, subject to the following conditions:
kpniot 0:a9259748d982 11
kpniot 0:a9259748d982 12 The above copyright notice and this permission notice shall be included in all
kpniot 0:a9259748d982 13 copies or substantial portions of the Software.
kpniot 0:a9259748d982 14
kpniot 0:a9259748d982 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
kpniot 0:a9259748d982 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
kpniot 0:a9259748d982 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
kpniot 0:a9259748d982 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
kpniot 0:a9259748d982 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
kpniot 0:a9259748d982 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
kpniot 0:a9259748d982 21 SOFTWARE.
kpniot 0:a9259748d982 22
kpniot 0:a9259748d982 23 See more at http://blog.squix.ch and https://github.com/squix78/json-streaming-parser
kpniot 0:a9259748d982 24 */
kpniot 0:a9259748d982 25
kpniot 0:a9259748d982 26 #ifndef SENMLJSONSTREAMINGPARSER
kpniot 0:a9259748d982 27 #define SENMLJSONSTREAMINGPARSER
kpniot 0:a9259748d982 28
kpniot 0:a9259748d982 29 #ifdef __MBED__
kpniot 0:a9259748d982 30 #include "mbed.h"
kpniot 0:a9259748d982 31 #include <string>
kpniot 0:a9259748d982 32 using namespace std;
kpniot 0:a9259748d982 33 #define String string
kpniot 0:a9259748d982 34 #else
kpniot 0:a9259748d982 35 #include <Arduino.h>
kpniot 0:a9259748d982 36 #endif
kpniot 0:a9259748d982 37 #include <senml_JsonListener.h>
kpniot 0:a9259748d982 38
kpniot 0:a9259748d982 39 #define STATE_START_DOCUMENT 0
kpniot 0:a9259748d982 40 #define STATE_DONE -1
kpniot 0:a9259748d982 41 #define STATE_IN_ARRAY 1
kpniot 0:a9259748d982 42 #define STATE_IN_OBJECT 2
kpniot 0:a9259748d982 43 #define STATE_END_KEY 3
kpniot 0:a9259748d982 44 #define STATE_AFTER_KEY 4
kpniot 0:a9259748d982 45 #define STATE_IN_STRING 5
kpniot 0:a9259748d982 46 #define STATE_START_ESCAPE 6
kpniot 0:a9259748d982 47 #define STATE_UNICODE 7
kpniot 0:a9259748d982 48 #define STATE_IN_NUMBER 8
kpniot 0:a9259748d982 49 #define STATE_IN_TRUE 9
kpniot 0:a9259748d982 50 #define STATE_IN_FALSE 10
kpniot 0:a9259748d982 51 #define STATE_IN_NULL 11
kpniot 0:a9259748d982 52 #define STATE_AFTER_VALUE 12
kpniot 0:a9259748d982 53 #define STATE_UNICODE_SURROGATE 13
kpniot 0:a9259748d982 54
kpniot 0:a9259748d982 55 #define STACK_OBJECT 0
kpniot 0:a9259748d982 56 #define STACK_ARRAY 1
kpniot 0:a9259748d982 57 #define STACK_KEY 2
kpniot 0:a9259748d982 58 #define STACK_STRING 3
kpniot 0:a9259748d982 59
kpniot 0:a9259748d982 60 #define BUFFER_MAX_LENGTH 512
kpniot 0:a9259748d982 61
kpniot 0:a9259748d982 62 /**
kpniot 0:a9259748d982 63 * Internal helper class for parsing json data.
kpniot 0:a9259748d982 64 */
kpniot 0:a9259748d982 65 class JsonStreamingParser {
kpniot 0:a9259748d982 66 public:
kpniot 0:a9259748d982 67 JsonStreamingParser();
kpniot 0:a9259748d982 68 void parse(char c);
kpniot 0:a9259748d982 69 void setListener(JsonListener* listener);
kpniot 0:a9259748d982 70 void reset();
kpniot 0:a9259748d982 71
kpniot 0:a9259748d982 72
kpniot 0:a9259748d982 73 private:
kpniot 0:a9259748d982 74
kpniot 0:a9259748d982 75 int state;
kpniot 0:a9259748d982 76 int stack[20];
kpniot 0:a9259748d982 77 int stackPos;
kpniot 0:a9259748d982 78 JsonListener* myListener;
kpniot 0:a9259748d982 79
kpniot 0:a9259748d982 80 //bool doEmitWhitespace = false;
kpniot 0:a9259748d982 81 // fixed length buffer array to prepare for c code
kpniot 0:a9259748d982 82 char buffer[BUFFER_MAX_LENGTH];
kpniot 0:a9259748d982 83 int bufferPos;
kpniot 0:a9259748d982 84
kpniot 0:a9259748d982 85 char unicodeEscapeBuffer[10];
kpniot 0:a9259748d982 86 int unicodeEscapeBufferPos;
kpniot 0:a9259748d982 87
kpniot 0:a9259748d982 88 char unicodeBuffer[10];
kpniot 0:a9259748d982 89 int unicodeBufferPos;
kpniot 0:a9259748d982 90
kpniot 0:a9259748d982 91 int characterCounter;
kpniot 0:a9259748d982 92
kpniot 0:a9259748d982 93 int unicodeHighSurrogate;
kpniot 0:a9259748d982 94
kpniot 0:a9259748d982 95 void increaseBufferPointer();
kpniot 0:a9259748d982 96
kpniot 0:a9259748d982 97 void endString();
kpniot 0:a9259748d982 98
kpniot 0:a9259748d982 99 void endArray();
kpniot 0:a9259748d982 100
kpniot 0:a9259748d982 101 void startValue(char c);
kpniot 0:a9259748d982 102
kpniot 0:a9259748d982 103 void startKey();
kpniot 0:a9259748d982 104
kpniot 0:a9259748d982 105 void processEscapeCharacters(char c);
kpniot 0:a9259748d982 106
kpniot 0:a9259748d982 107 bool isDigit(char c);
kpniot 0:a9259748d982 108
kpniot 0:a9259748d982 109 bool isHexCharacter(char c);
kpniot 0:a9259748d982 110
kpniot 0:a9259748d982 111 char convertCodepointToCharacter(int num);
kpniot 0:a9259748d982 112
kpniot 0:a9259748d982 113 void endUnicodeCharacter(int codepoint);
kpniot 0:a9259748d982 114
kpniot 0:a9259748d982 115 void startNumber(char c);
kpniot 0:a9259748d982 116
kpniot 0:a9259748d982 117 void startString();
kpniot 0:a9259748d982 118
kpniot 0:a9259748d982 119 void startObject();
kpniot 0:a9259748d982 120
kpniot 0:a9259748d982 121 void startArray();
kpniot 0:a9259748d982 122
kpniot 0:a9259748d982 123 void endNull();
kpniot 0:a9259748d982 124
kpniot 0:a9259748d982 125 void endFalse();
kpniot 0:a9259748d982 126
kpniot 0:a9259748d982 127 void endTrue();
kpniot 0:a9259748d982 128
kpniot 0:a9259748d982 129 void endDocument();
kpniot 0:a9259748d982 130
kpniot 0:a9259748d982 131 int convertDecimalBufferToInt(char myArray[], int length);
kpniot 0:a9259748d982 132
kpniot 0:a9259748d982 133 void endNumber();
kpniot 0:a9259748d982 134
kpniot 0:a9259748d982 135 void endUnicodeSurrogateInterstitial();
kpniot 0:a9259748d982 136
kpniot 0:a9259748d982 137 bool doesCharArrayContain(char myArray[], int length, char c);
kpniot 0:a9259748d982 138
kpniot 0:a9259748d982 139 int getHexArrayAsDecimal(char hexArray[], int length);
kpniot 0:a9259748d982 140
kpniot 0:a9259748d982 141 void processUnicodeCharacter(char c);
kpniot 0:a9259748d982 142
kpniot 0:a9259748d982 143 void endObject();
kpniot 0:a9259748d982 144 };
kpniot 0:a9259748d982 145
kpniot 0:a9259748d982 146 #endif
kpniot 0:a9259748d982 147
kpniot 0:a9259748d982 148
kpniot 0:a9259748d982 149
kpniot 0:a9259748d982 150
kpniot 0:a9259748d982 151
kpniot 0:a9259748d982 152
kpniot 0:a9259748d982 153