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+# JSON [![GoDoc](http://godoc.org/github.com/tdewolff/parse/json?status.svg)](http://godoc.org/github.com/tdewolff/parse/json) [![GoCover](http://gocover.io/_badge/github.com/tdewolff/parse/json)](http://gocover.io/github.com/tdewolff/parse/json)
+
+This package is a JSON lexer (ECMA-404) written in [Go][1]. It follows the specification at [JSON](http://json.org/). The lexer takes an io.Reader and converts it into tokens until the EOF.
+
+## Installation
+Run the following command
+
+	go get github.com/tdewolff/parse/json
+
+or add the following import and run project with `go get`
+
+	import "github.com/tdewolff/parse/json"
+
+## Parser
+### Usage
+The following initializes a new Parser with io.Reader `r`:
+``` go
+p := json.NewParser(r)
+```
+
+To tokenize until EOF an error, use:
+``` go
+for {
+	gt, text := p.Next()
+	switch gt {
+	case json.ErrorGrammar:
+		// error or EOF set in p.Err()
+		return
+	// ...
+	}
+}
+```
+
+All grammars:
+``` go
+ErrorGrammar       GrammarType = iota // extra grammar when errors occur
+WhitespaceGrammar                     // space \t \r \n
+LiteralGrammar                        // null true false
+NumberGrammar
+StringGrammar
+StartObjectGrammar // {
+EndObjectGrammar   // }
+StartArrayGrammar  // [
+EndArrayGrammar    // ]
+```
+
+### Examples
+``` go
+package main
+
+import (
+	"os"
+
+	"github.com/tdewolff/parse/json"
+)
+
+// Tokenize JSON from stdin.
+func main() {
+	p := json.NewParser(os.Stdin)
+	for {
+		gt, text := p.Next()
+		switch gt {
+		case json.ErrorGrammar:
+			if p.Err() != io.EOF {
+				fmt.Println("Error on line", p.Line(), ":", p.Err())
+			}
+			return
+		case json.LiteralGrammar:
+			fmt.Println("Literal", string(text))
+		case json.NumberGrammar:
+			fmt.Println("Number", string(text))
+		// ...
+		}
+	}
+}
+```
+
+## License
+Released under the [MIT license](https://github.com/tdewolff/parse/blob/master/LICENSE.md).
+
+[1]: http://golang.org/ "Go Language"