template

package

v0.0.0-...-65f6afe Latest Latest Go to latest Published: Nov 7, 2019 License: Apache-2.0 Imports: 4 Imported by: 0

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Package template provides the code templates that are emitted to generate the parser.

Each template handler is tested independently in isolation.

This package as given implements the following grammar:

Literal <- "abc"
CharClass <- [ \n\r\t]
Star <- CharClass *
Group <- Star < Literal > Star
Predicate <- & Group
... etc.

This section is empty.

This section is empty.

func CaptureEndHandler(r *Result, pos int) (int, error)

func CaptureStartHandler(r *Result, pos int) (int, error)

func CharClassAlnumHandler(r *Result, pos int) (int, error)

func CharClassHandler(r *Result, pos int) (int, error)

func ChoiceHandler(r *Result, pos int) (int, error)

func DotHandler(r *Result, pos int) (int, error)

func GroupHandler(r *Result, pos int) (int, error)

func LiteralHandler(r *Result, pos int) (int, error)

LiteralHandler is a template code for literal handlers in the generated parser.

func PlusHandler(r *Result, pos int) (int, error)

func PredicateHandler(r *Result, pos int) (int, error)

func QuestionHandler(r *Result, pos int) (int, error)

func RuleHandler(r *Result, pos int) (int, error)

func StarHandler(r *Result, pos int) (int, error)

type Node = parser.Node

type NodeStack []*Node

func (s *NodeStack) Pop() *Node

func (s *NodeStack) Push(n *Node)

type Result struct {
	Source string
	Memo   map[int]map[int]*Node
	Level  int
	// Final AST.
	Tree *parser.Node
	NodeStack
}

Result encapsulates one parse result.

func Parse(source string) (*Result, error)

func (r *Result) Attach(n *Node)

func (r *Result) TopNode() *Node