scheme

README

scheme

Don't use this, really :)

Documentation

Index

• type Boolean
  • func (b *Boolean) Capture(values []string) error
• type Expression
  • func Parse(s string) (*Expression, error)
  • func (e Expression) String() string
• type SchemeFunction
• type Scope
• type Value
  • func Eval(e *Expression, s Scope) (*Value, error)
  • func (v Value) Primitive() interface{}
  • func (v Value) String() string
  • func (v Value) ToFloat() (float64, error)

Types

type Boolean

type Boolean bool

func (*Boolean) Capture

func (b *Boolean) Capture(values []string) error

type Expression

type Expression struct {
	Call   []*Expression `"(" @@+ ")"|`
	Val    *Value        `@@|`
	Var    *string       `@Ident|`
	Symbol *string       `@Symbol`
}

func Parse

func Parse(s string) (*Expression, error)

func (Expression) String

func (e Expression) String() string

type SchemeFunction

type SchemeFunction func(args []*Value, scope Scope) (*Value, error)

type Scope

type Scope map[string]*Value

type Value

type Value struct {
	Float   *float64 `  @Float`
	Bool    *Boolean `| @("true" | "false")`
	AString *string  `| @String`
	Func    SchemeFunction
}

func Eval

func Eval(e *Expression, s Scope) (*Value, error)

func (Value) Primitive

func (v Value) Primitive() interface{}

func (Value) String

func (v Value) String() string

func (Value) ToFloat

func (v Value) ToFloat() (float64, error)