flowscript

package
v0.1.3 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Oct 14, 2018 License: GPL-3.0 Imports: 12 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var BuiltinFunctions = map[string]*ScriptFunction{
	"basename": &ScriptFunction{ScriptFunctionCallBasename, "basename", 1, 2},
	"dirname":  &ScriptFunction{ScriptFunctionCallDirname, "dirname", 1, 1},
	"prefix":   &ScriptFunction{ScriptFunctionCallPrefix, "prefix", 2, 2},
	"zip":      &ScriptFunction{ScriptFunctionCallZip, "zip", 2, 2},
}

Functions

func IsDigit 

func IsDigit(ch rune) bool

func IsWhiteSpace 

func IsWhiteSpace(ch rune) bool

func IsWordCharacter 

func IsWordCharacter(ch rune) bool

func SplitToken 

func SplitToken(data []byte, atEOF bool) (advance int, token []byte, err error)

Types

type ArrayAccess 

type ArrayAccess struct {
	Array      Evaluable
	ArrayIndex Evaluable
}

func (*ArrayAccess) Evaluate 

func (v *ArrayAccess) Evaluate(env Environment) (Value, error)

func (*ArrayAccess) String 

func (v *ArrayAccess) String() string

func (*ArrayAccess) SubEvaluable 

func (x *ArrayAccess) SubEvaluable() []Evaluable

type ArrayExpression 

type ArrayExpression struct {
	// contains filtered or unexported fields
}

func (*ArrayExpression) Evaluate 

func (v *ArrayExpression) Evaluate(env Environment) (Value, error)

func (*ArrayExpression) String 

func (v *ArrayExpression) String() string

func (*ArrayExpression) SubEvaluable 

func (x *ArrayExpression) SubEvaluable() []Evaluable

type ArrayValue 

type ArrayValue struct {
	// contains filtered or unexported fields
}

func CreateArrayValue2 

func CreateArrayValue2(v1 Value, v2 Value) ArrayValue

func (ArrayValue) AsArray 

func (v ArrayValue) AsArray() ([]string, error)

func (ArrayValue) AsInt 

func (v ArrayValue) AsInt() (int64, error)

func (ArrayValue) AsRawArray 

func (v ArrayValue) AsRawArray() []Value

func (ArrayValue) AsString 

func (v ArrayValue) AsString() (string, error)

func (ArrayValue) String 

func (v ArrayValue) String() string

func (ArrayValue) Value 

func (v ArrayValue) Value() []Value

type AssignExpression 

type AssignExpression struct {
	// contains filtered or unexported fields
}

func (*AssignExpression) Evaluate 

func (v *AssignExpression) Evaluate(env Environment) (Value, error)

func (*AssignExpression) String 

func (v *AssignExpression) String() string

func (*AssignExpression) SubEvaluable 

func (x *AssignExpression) SubEvaluable() []Evaluable

type BadEvaluable 

type BadEvaluable struct{}

func (BadEvaluable) Evaluate 

func (x BadEvaluable) Evaluate(env Environment) (Value, error)

func (BadEvaluable) String 

func (x BadEvaluable) String() string

func (BadEvaluable) SubEvaluable 

func (x BadEvaluable) SubEvaluable() []Evaluable

type Environment 

type Environment interface {
	// Get value of variable
	Value(key string) (Value, error)
	Assign(key string, value Value) error
	// Get parent environment
	ParentEnvironment() Environment
}

Environment contains variable values

func CreateMixedEnvironment 

func CreateMixedEnvironment(e Environment, m map[string]Value) Environment

func CreateSubEnvironment 

func CreateSubEnvironment(e Environment) Environment

func NewGlobalEnvironment 

func NewGlobalEnvironment() Environment

type Evaluable 

type Evaluable interface {
	Evaluate(env Environment) (Value, error)
	String() string
	SubEvaluable() []Evaluable
}

Evaluable is interface of evaluable blocks

func ParseAsArray 

func ParseAsArray(tokenizer *LookAheadScanner) (eval Evaluable, err error)

func ParseAsArrayAccessOrArray 

func ParseAsArrayAccessOrArray(tokenizer *LookAheadScanner) (eval Evaluable, err error)

func ParseAsExp 

func ParseAsExp(tokenizer *LookAheadScanner) (eval Evaluable, err error)

func ParseAsFactor0 

func ParseAsFactor0(tokenizer *LookAheadScanner) (eval Evaluable, err error)

func ParseAsFactor1 

func ParseAsFactor1(tokenizer *LookAheadScanner) (eval Evaluable, err error)

func ParseAsFactor2 

func ParseAsFactor2(tokenizer *LookAheadScanner) (eval Evaluable, err error)

func ParseAsFactor3 

func ParseAsFactor3(tokenizer *LookAheadScanner) (eval Evaluable, err error)

func ParseAsFunctionCall 

func ParseAsFunctionCall(tokenizer *LookAheadScanner) (eval Evaluable, err error)

func ParseAsNumber 

func ParseAsNumber(tokenizer *LookAheadScanner) (eval Evaluable, err error)

func ParseAsString 

func ParseAsString(tokenizer *LookAheadScanner) (eval Evaluable, err error)

func ParseAsVariable 

func ParseAsVariable(tokenizer *LookAheadScanner) (eval Evaluable, err error)

func ParseScript 

func ParseScript(text string) (Evaluable, error)

type FunctionCall 

type FunctionCall struct {
	// contains filtered or unexported fields
}

func (*FunctionCall) Evaluate 

func (v *FunctionCall) Evaluate(env Environment) (Value, error)

func (*FunctionCall) String 

func (v *FunctionCall) String() string

func (*FunctionCall) SubEvaluable 

func (x *FunctionCall) SubEvaluable() []Evaluable

type FunctionValue 

type FunctionValue struct {
	// contains filtered or unexported fields
}

func (FunctionValue) AsInt 

func (v FunctionValue) AsInt() (int64, error)

func (FunctionValue) AsString 

func (v FunctionValue) AsString() (string, error)

func (FunctionValue) String 

func (v FunctionValue) String() string

func (FunctionValue) Value 

func (v FunctionValue) Value() *ScriptFunction

type GlobalEnvironment 

type GlobalEnvironment struct {
	// contains filtered or unexported fields
}

GlobalEnvironment is Global environment container

func (*GlobalEnvironment) Assign 

func (ge *GlobalEnvironment) Assign(key string, value Value) error

func (*GlobalEnvironment) ParentEnvironment 

func (ge *GlobalEnvironment) ParentEnvironment() Environment

func (*GlobalEnvironment) Value 

func (ge *GlobalEnvironment) Value(key string) (Value, error)

Value gets real value from global environment

type IntValue 

type IntValue struct {
	// contains filtered or unexported fields
}

func NewIntValue 

func NewIntValue(val int64) IntValue

func (IntValue) AsInt 

func (v IntValue) AsInt() (int64, error)

func (IntValue) AsString 

func (v IntValue) AsString() (string, error)

func (IntValue) String 

func (v IntValue) String() string

func (IntValue) Value 

func (v IntValue) Value() int64

type JoinedExpression 

type JoinedExpression struct {
	// contains filtered or unexported fields
}

func (*JoinedExpression) Evaluate 

func (v *JoinedExpression) Evaluate(env Environment) (Value, error)

func (*JoinedExpression) String 

func (v *JoinedExpression) String() string

func (*JoinedExpression) SubEvaluable 

func (x *JoinedExpression) SubEvaluable() []Evaluable

type LookAheadScanner 

type LookAheadScanner struct {
	// contains filtered or unexported fields
}

func NewLookAheadScanner 

func NewLookAheadScanner(scanner *bufio.Scanner) *LookAheadScanner

func NewTokenizer 

func NewTokenizer(r io.Reader) *LookAheadScanner

func NewTokenizerFromText 

func NewTokenizerFromText(text string) *LookAheadScanner

func (*LookAheadScanner) Bytes 

func (s *LookAheadScanner) Bytes() []byte

func (*LookAheadScanner) Err 

func (s *LookAheadScanner) Err() error

func (*LookAheadScanner) LookAheadBytes 

func (s *LookAheadScanner) LookAheadBytes(i int) []byte

func (*LookAheadScanner) LookAheadText 

func (s *LookAheadScanner) LookAheadText(i int) string

func (*LookAheadScanner) Scan 

func (s *LookAheadScanner) Scan() bool

func (*LookAheadScanner) Text 

func (s *LookAheadScanner) Text() string

type MapValue 

type MapValue struct {
	// contains filtered or unexported fields
}

func (MapValue) AsInt 

func (v MapValue) AsInt() (int64, error)

func (MapValue) AsString 

func (v MapValue) AsString() (string, error)

func (MapValue) String 

func (v MapValue) String() string

func (MapValue) Value 

func (v MapValue) Value() map[string]Value

type NumericOperationExpression 

type NumericOperationExpression struct {
	// contains filtered or unexported fields
}

func (*NumericOperationExpression) Evaluate 

func (v *NumericOperationExpression) Evaluate(env Environment) (Value, error)

func (*NumericOperationExpression) String 

func (v *NumericOperationExpression) String() string

func (*NumericOperationExpression) SubEvaluable 

func (x *NumericOperationExpression) SubEvaluable() []Evaluable

type PlusExpression 

type PlusExpression struct {
	// contains filtered or unexported fields
}

func (*PlusExpression) Evaluate 

func (v *PlusExpression) Evaluate(env Environment) (Value, error)

func (*PlusExpression) String 

func (v *PlusExpression) String() string

func (*PlusExpression) SubEvaluable 

func (x *PlusExpression) SubEvaluable() []Evaluable

type RuneCheck 

type RuneCheck func(ch rune) (match bool)

type ScriptFunction 

type ScriptFunction struct {
	// contains filtered or unexported fields
}

func (ScriptFunction) String 

func (s ScriptFunction) String() string

type ScriptFunctionCall 

type ScriptFunctionCall func(args []Value) (Value, error)

type StringSet 

type StringSet struct {
	// contains filtered or unexported fields
}

func NewStringSet 

func NewStringSet() StringSet

func NewStringSetWithValues 

func NewStringSetWithValues(values ...string) StringSet

func SearchCreatedVariables 

func SearchCreatedVariables(evaluable Evaluable) StringSet

func SearchDependentVariables 

func SearchDependentVariables(evaluable Evaluable) StringSet

func (StringSet) Add 

func (v StringSet) Add(s string)

func (StringSet) AddAll 

func (v StringSet) AddAll(s StringSet)

func (StringSet) Array 

func (v StringSet) Array() []string

func (StringSet) Contains 

func (v StringSet) Contains(s string) bool

func (StringSet) Intersect 

func (v StringSet) Intersect(x StringSet) StringSet

func (StringSet) MarshalJSON 

func (v StringSet) MarshalJSON() ([]byte, error)

func (StringSet) Remove 

func (v StringSet) Remove(s string)

func (StringSet) Size 

func (v StringSet) Size() int

func (*StringSet) UnmarshalJSON 

func (v *StringSet) UnmarshalJSON(data []byte) error

type StringValue 

type StringValue struct {
	// contains filtered or unexported fields
}

func NewStringValue 

func NewStringValue(str string) StringValue

func (StringValue) AsInt 

func (v StringValue) AsInt() (int64, error)

func (StringValue) AsString 

func (v StringValue) AsString() (string, error)

func (StringValue) String 

func (v StringValue) String() string

func (StringValue) Value 

func (v StringValue) Value() string

type SubEnvironment 

type SubEnvironment struct {
	// contains filtered or unexported fields
}

func (*SubEnvironment) Assign 

func (se *SubEnvironment) Assign(key string, value Value) error

func (*SubEnvironment) ParentEnvironment 

func (se *SubEnvironment) ParentEnvironment() Environment

func (*SubEnvironment) Value 

func (se *SubEnvironment) Value(key string) (Value, error)

type Value 

type Value interface {
	// String representation of value for debug
	String() string
	// Convert to string to embed
	AsString() (string, error)
	// Convert to int
	AsInt() (int64, error)
}

Value representation in flowscript

func EvaluateScript 

func EvaluateScript(text string, env Environment) (Value, error)

func ScriptFunctionCallBasename 

func ScriptFunctionCallBasename(args []Value) (Value, error)

func ScriptFunctionCallDirname 

func ScriptFunctionCallDirname(args []Value) (Value, error)

func ScriptFunctionCallPrefix 

func ScriptFunctionCallPrefix(args []Value) (Value, error)

func ScriptFunctionCallZip 

func ScriptFunctionCallZip(args []Value) (Value, error)

type ValueEvaluable 

type ValueEvaluable struct {
	// contains filtered or unexported fields
}

func (ValueEvaluable) Evaluate 

func (x ValueEvaluable) Evaluate(env Environment) (Value, error)

func (ValueEvaluable) String 

func (x ValueEvaluable) String() string

func (ValueEvaluable) SubEvaluable 

func (x ValueEvaluable) SubEvaluable() []Evaluable

type Variable 

type Variable struct {
	Name string
}

Variable is one of Evaluable value

func (*Variable) Evaluate 

func (v *Variable) Evaluate(env Environment) (Value, error)

Evaluate variable and get value

func (*Variable) String 

func (v *Variable) String() string

func (Variable) SubEvaluable 

func (x Variable) SubEvaluable() []Evaluable

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