gopherjs - json/indent.go

     1  package json
     2  
     3  import "github.com/gopherjs/gopherjs/js"
     4  
     5  type StringWriter interface {
     6  	WriteString(string) (int, error)
     7  }
     8  
     9  func Compact(dst StringWriter, src []byte) error {
    10  	return Indent(dst, src, "", "")
    11  }
    12  
    13  func Indent(dst StringWriter, src []byte, prefix, indent string) (err error) {
    14  	defer func() {
    15  		if e := recover(); e != nil {
    16  			if er, ok := e.(*js.Error); ok && er != nil {
    17  				err = er
    18  			} else {
    19  				panic(e)
    20  			}
    21  		}
    22  	}()
    23  	str := js.Global.Get("JSON").Call("stringify", js.Global.Get("JSON").Call("parse", string(src)), nil, indent)
    24  	if len(prefix) > 0 {
    25  		str = str.Call("replace", "\n", "\n"+prefix)
    26  	}
    27  	_, err = dst.WriteString(str.String())
    28  	return err
    29  }