forked from bblanchon/ArduinoJson
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README.md
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README.md
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A malloc-free JSON parser for Arduino
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An efficient JSON parser for Arduino
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=====================================
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====================================
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This library is an thin C++ wrapper around the *jsmn* tokenizer: http://zserge.com/jsmn.html
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This library is an thin C++ wrapper around the *jsmn* tokenizer: http://zserge.com/jsmn.html
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@ -10,7 +9,7 @@ It has been written with Arduino in mind, but it isn't linked to Arduino librari
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Features
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Features
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-------
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--------
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* Based on the well-proven [jsmn](http://zserge.com/jsmn.html) tokenizer
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* Based on the well-proven [jsmn](http://zserge.com/jsmn.html) tokenizer
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* Supports nested objects
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* Supports nested objects
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@ -43,7 +42,6 @@ Example
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How to use ?
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How to use ?
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-------------
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-------------
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@ -74,7 +72,7 @@ To extract data from the JSON string, you need to create a `JsonParser`, and spe
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> Each token takes 8 bytes, so `sizeof(JsonParser<32>)` is 256 bytes which is quite big in an Arduino with only 2KB of RAM.
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> Each token takes 8 bytes, so `sizeof(JsonParser<32>)` is 256 bytes which is quite big in an Arduino with only 2KB of RAM.
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> Don't forget that you also have to store the JSON string in RAM and it's probably big.
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> Don't forget that you also have to store the JSON string in RAM and it's probably big.
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> 32 tokens may seem small but it's very descent for an 8-bit processor, you wouldn't get better results with other JSON libraries.
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> 32 tokens may seem small, but it's very decent for an 8-bit processor, you wouldn't get better results with other JSON libraries.
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### 4. Extract data
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### 4. Extract data
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@ -150,7 +148,6 @@ or simply:
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double a = root.getArray(0).getDouble(0);
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double a = root.getArray(0).getDouble(0);
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Common pitfalls
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Common pitfalls
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---------------
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---------------
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@ -204,8 +201,6 @@ When you pass a `char*` to `JsonParser::parseArray()` or `JsonParser::parseHashT
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This is because we want functions like `JsonArray::getString()` to return a null-terminating string without any memory allocation.
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This is because we want functions like `JsonArray::getString()` to return a null-terminating string without any memory allocation.
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Memory usage
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Memory usage
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------------
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------------
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@ -233,9 +228,6 @@ This table is for an 8-bit Arduino, types would be bigger on a 32-bit processor.
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</table>
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</table>
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Code size
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Code size
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---------
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---------
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@ -414,4 +406,4 @@ As you'll see the code size if between 1680 and 3528 bytes, depending on the fea
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<td>TOTAL</td>
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<td>TOTAL</td>
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<td>710</td>
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<td>710</td>
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</tr>
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</tr>
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</table>
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</table>
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