Diff: senml_JsonStreamingParser.h

Revision:

0:a9259748d982

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/senml_JsonStreamingParser.h	Sat May 19 17:35:20 2018 +0000
@@ -0,0 +1,153 @@
+/**The MIT License (MIT)
+
+Copyright (c) 2015 by Daniel Eichhorn
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+See more at http://blog.squix.ch and https://github.com/squix78/json-streaming-parser
+*/
+
+#ifndef SENMLJSONSTREAMINGPARSER
+#define SENMLJSONSTREAMINGPARSER
+
+#ifdef __MBED__
+    #include "mbed.h"
+    #include <string> 
+    using namespace std;
+    #define String string
+#else
+    #include <Arduino.h>
+#endif
+#include <senml_JsonListener.h>
+
+#define STATE_START_DOCUMENT     0
+#define STATE_DONE               -1
+#define STATE_IN_ARRAY           1
+#define STATE_IN_OBJECT          2
+#define STATE_END_KEY            3
+#define STATE_AFTER_KEY          4
+#define STATE_IN_STRING          5
+#define STATE_START_ESCAPE       6
+#define STATE_UNICODE            7
+#define STATE_IN_NUMBER          8
+#define STATE_IN_TRUE            9
+#define STATE_IN_FALSE           10
+#define STATE_IN_NULL            11
+#define STATE_AFTER_VALUE        12
+#define STATE_UNICODE_SURROGATE  13
+
+#define STACK_OBJECT             0
+#define STACK_ARRAY              1
+#define STACK_KEY                2
+#define STACK_STRING             3
+
+#define BUFFER_MAX_LENGTH  512
+
+/**
+ * Internal helper class for parsing json data.
+ */
+class JsonStreamingParser {
+    public:
+        JsonStreamingParser();
+        void parse(char c);
+        void setListener(JsonListener* listener);
+        void reset();
+
+
+    private:
+
+        int state;
+        int stack[20];
+        int stackPos;
+        JsonListener* myListener;
+
+        //bool doEmitWhitespace = false;
+        // fixed length buffer array to prepare for c code
+        char buffer[BUFFER_MAX_LENGTH];
+        int bufferPos;
+
+        char unicodeEscapeBuffer[10];
+        int unicodeEscapeBufferPos;
+
+        char unicodeBuffer[10];
+        int unicodeBufferPos;
+
+        int characterCounter;
+
+        int unicodeHighSurrogate;
+
+        void increaseBufferPointer();
+
+        void endString();
+
+        void endArray();
+
+        void startValue(char c);
+
+        void startKey();
+
+        void processEscapeCharacters(char c);
+
+        bool isDigit(char c);
+
+        bool isHexCharacter(char c);
+
+        char convertCodepointToCharacter(int num);
+
+        void endUnicodeCharacter(int codepoint);
+
+        void startNumber(char c);
+
+        void startString();
+
+        void startObject();
+
+        void startArray();
+
+        void endNull();
+
+        void endFalse();
+
+        void endTrue();
+
+        void endDocument();
+
+        int convertDecimalBufferToInt(char myArray[], int length);
+
+        void endNumber();
+
+        void endUnicodeSurrogateInterstitial();
+
+        bool doesCharArrayContain(char myArray[], int length, char c);
+
+        int getHexArrayAsDecimal(char hexArray[], int length);
+
+        void processUnicodeCharacter(char c);
+
+        void endObject();
+};
+
+#endif
+
+
+
+
+
+
+