github.com/quartercastle/tag

tag

DEPRECATED: This project has been moved to github.com/quartercastle/structtag

The motivation behind this package is that the StructTag implementation shipped with Go's standard library is very limited in detecting a malformed StructTag and each time StructTag.Get(key) gets called, it results in the StructTag being parsed again. Another problem is that the StructTag can not be easily manipulated because it is basically a string. This package provides a way to parse the StructTag into a Tag map. This allows fast lookups and easy manipulation of the key value pairs within the Tag.

// Example of struct using tags to append metadata to fields.
type Server struct {
	Host string `json:"host" env:"SERVER_HOST" default:"localhost"`
	Port int    `json:"port" env:"SERVER_PORT" default:"3000"`
}

Install

go get github.com/kvartborg/tag

Usage

t, err := tag.Parse(`json:"host" env:"SERVER_HOST"`)

if err != nil {
  panic(err)
}

fmt.Println(t["json"])

See godoc for full documentation.

License

This project is licensed under the MIT License.