type SyntaxError struct {
	msg    string // description of error
// error occurred after reading Offset bytes, from which line and columnnr can be obtained
	Offset int64
}

func (e *SyntaxError) String() string { return e.msg }


if serr, ok := err.(*json.SyntaxError); ok {
	line, col := findLine(f, serr.Offset)
	return fmt.Errorf("%s:%d:%d: %v", f.Name(), line, col, err)
}


package net
type Error interface {
	Timeout() bool   // Is the error a timeout?
	Temporary() bool // Is the error temporary?
}