query

Documentation

Index

• Variables
• type Context
• type Map
  • func (self Map) GetIdentifier(key string) string
• type Query
  • func And(items ...Query) Query
  • func Equal(identifier, str string) Query
  • func Match(identifier, regexpString string) (Query, error)
  • func Not(item Query) Query
  • func Or(items ...Query) Query
  • func Parse(query string) (Query, error)

Variables

var (
	True  = boolean(true)
	False = boolean(false)
)

Types

type Context

type Context interface {
	GetIdentifier(string) string
}

Defines the interface needed by 'Query' in order to be able to evaluate query expressions.

type Map

type Map map[string]string

Map is a simple implementation of Context using a map of strings. Mainly useful for testing purposes.

func (Map) GetIdentifier

func (self Map) GetIdentifier(key string) string

type Query

type Query interface {
	Eval(Context) bool
}

Representation of a tree node modeling a boolean query expression.

func And

func And(items ...Query) Query

func Equal

func Equal(identifier, str string) Query

func Match

func Match(identifier, regexpString string) (Query, error)

func Not

func Not(item Query) Query

func Or

func Or(items ...Query) Query

func Parse

func Parse(query string) (Query, error)