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Programming language: Go
Tags: Configuration    
Latest version: v3.0.0

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README

hjson-go

Build Status Go Pkg Go Report Card coverage godoc

Hjson Intro

{
  # specify rate in requests/second (because comments are helpful!)
  rate: 1000

  // prefer c-style comments?
  /* feeling old fashioned? */

  # did you notice that rate doesn't need quotes?
  hey: look ma, no quotes for strings either!

  # best of all
  notice: []
  anything: ?

  # yes, commas are optional!
}

The Go implementation of Hjson is based on hjson-js. For other platforms see hjson.org.

Install

Make sure you have a working Go environment. See the install instructions.

  1. Get the sources bash $ go get -u github.com/hjson/hjson-go
  2. Build the hjson-cli commandline tool (optional) bash $ cd $(go env GOPATH)/src/github.com/hjson/hjson-go/hjson-cli && go install $ hjson-cli --version # Usage as command line tool ``` usage: hjson-cli [OPTIONS] [INPUT] hjson can be used to convert JSON from/to Hjson.

hjson will read the given JSON/Hjson input file or read from stdin.

Options: -allowMinusZero Allow -0. -bracesSameLine Print braces on the same line. -c Output as JSON. -h Show this screen. -indentBy string The indent string. (default " ") -j Output as formatted JSON. -omitRootBraces Omit braces at the root. -quoteAlways Always quote string values.


Sample:
- run `hjson-cli test.json > test.hjson` to convert to Hjson
- run `hjson-cli -j test.hjson > test.json` to convert to JSON

# Usage as a GO library

```go

package main

import (
  "github.com/hjson/hjson-go"
  "fmt"
)

func main() {

    // Now let's look at decoding Hjson data into Go
    // values.
    sampleText := []byte(`
    {
        # specify rate in requests/second
        rate: 1000
        array:
        [
            foo
            bar
        ]
    }`)

    // We need to provide a variable where Hjson
    // can put the decoded data.
    var dat map[string]interface{}

    // Decode and a check for errors.
    if err := hjson.Unmarshal(sampleText, &dat); err != nil {
        panic(err)
    }
    fmt.Println(dat)

    // In order to use the values in the decoded map,
    // we'll need to cast them to their appropriate type.

    rate := dat["rate"].(float64)
    fmt.Println(rate)

    array := dat["array"].([]interface{})
    str1 := array[0].(string)
    fmt.Println(str1)


    // To encode to Hjson with default options:
    sampleMap := map[string]int{"apple": 5, "lettuce": 7}
    hjson, _ := hjson.Marshal(sampleMap)
    // this is short for:
    // options := hjson.DefaultOptions()
    // hjson, _ := hjson.MarshalWithOptions(sampleMap, options)
    fmt.Println(string(hjson))
}

If you prefer, you can also unmarshal to Go objects by converting to JSON:


package main

import (
  "github.com/hjson/hjson-go"
  "encoding/json"
  "fmt"
)

type Sample struct {
    Rate  int
    Array []string
}

func main() {

    sampleText := []byte(`
    {
        # specify rate in requests/second
        rate: 1000
        array:
        [
            foo
            bar
        ]
    }`)

    // read Hjson
    var dat map[string]interface{}
    hjson.Unmarshal(sampleText, &dat)

    // convert to JSON
    b, _ := json.Marshal(dat)

    // unmarshal
    var sample Sample
    json.Unmarshal(b, &sample)

    fmt.Println(sample.Rate)
    fmt.Println(sample.Array)
}

API

godoc

History

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