Add ast action

12 files changed, 515 insertions, 84 deletions

diff --git a/cmd/vartan/parse.go b/cmd/vartan/parse.go
index 0f262b4..568a99c 100644
--- a/cmd/vartan/parse.go
+++ b/cmd/vartan/parse.go
@@ -55,6 +55,7 @@ func runParse(cmd *cobra.Command, args []string) (retErr error) {
 		return err
 	}
 	fmt.Printf("Accepted\n")
+	driver.PrintTree(p.AST(), 0)
 
 	return nil
 }
diff --git a/driver/parser.go b/driver/parser.go
index adc2a54..e647a62 100644
--- a/driver/parser.go
+++ b/driver/parser.go
@@ -8,28 +8,29 @@ import (
 	"github.com/nihei9/vartan/spec"
 )
 
-type CST struct {
+type Node struct {
 	KindName string
 	Text     string
-	Children []*CST
+	Children []*Node
 }
 
-func printCST(cst *CST, depth int) {
+func PrintTree(node *Node, depth int) {
 	for i := 0; i < depth; i++ {
 		fmt.Printf("    ")
 	}
-	fmt.Printf("%v", cst.KindName)
-	if cst.Text != "" {
-		fmt.Printf(` "%v"`, cst.Text)
+	fmt.Printf("%v", node.KindName)
+	if node.Text != "" {
+		fmt.Printf(` "%v"`, node.Text)
 	}
 	fmt.Printf("\n")
-	for _, c := range cst.Children {
-		printCST(c, depth+1)
+	for _, c := range node.Children {
+		PrintTree(c, depth+1)
 	}
 }
 
 type semanticFrame struct {
-	cst *CST
+	cst *Node
+	ast *Node
 }
 
 type Parser struct {
@@ -37,7 +38,8 @@ type Parser struct {
 	lex        *mldriver.Lexer
 	stateStack []int
 	semStack   []*semanticFrame
-	cst        *CST
+	cst        *Node
+	ast        *Node
 }
 
 func NewParser(gram *spec.CompiledGrammar, src io.Reader) (*Parser, error) {
@@ -76,9 +78,14 @@ func (p *Parser) Parse() error {
 			if err != nil {
 				return err
 			}
+
 			// semantic action
 			p.semStack = append(p.semStack, &semanticFrame{
-				cst: &CST{
+				cst: &Node{
+					KindName: p.gram.ParsingTable.Terminals[tsym],
+					Text:     tokText,
+				},
+				ast: &Node{
 					KindName: p.gram.ParsingTable.Terminals[tsym],
 					Text:     tokText,
 				},
@@ -86,23 +93,63 @@ func (p *Parser) Parse() error {
 		case act > 0: // Reduce
 			accepted := p.reduce(act)
 			if accepted {
-				p.cst = p.semStack[len(p.semStack)-1].cst
+				top := p.semStack[len(p.semStack)-1]
+				p.cst = top.cst
+				p.ast = top.ast
 				return nil
 			}
+
 			// semantic action
 			prodNum := act
 			lhs := p.gram.ParsingTable.LHSSymbols[prodNum]
 			n := p.gram.ParsingTable.AlternativeSymbolCounts[prodNum]
-			children := []*CST{}
-			for _, f := range p.semStack[len(p.semStack)-n:] {
-				children = append(children, f.cst)
+			handle := p.semStack[len(p.semStack)-n:]
+
+			var cst *Node
+			{
+				children := make([]*Node, len(handle))
+				for i, f := range handle {
+					children[i] = f.cst
+				}
+				cst = &Node{
+					KindName: p.gram.ParsingTable.NonTerminals[lhs],
+					Children: children,
+				}
 			}
-			p.semStack = p.semStack[:len(p.semStack)-n]
-			p.semStack = append(p.semStack, &semanticFrame{
-				cst: &CST{
+
+			var ast *Node
+			{
+				act := p.gram.ASTAction.Entries[prodNum]
+				children := []*Node{}
+				if act != nil {
+					for _, e := range act {
+						if e > 0 {
+							offset := e - 1
+							children = append(children, handle[offset].ast)
+						} else {
+							offset := e*-1 - 1
+							for _, c := range handle[offset].ast.Children {
+								children = append(children, c)
+							}
+						}
+					}
+				} else {
+					// If an alternative has no AST action, a driver generates
+					// a node with the same structure as a CST.
+					for _, f := range handle {
+						children = append(children, f.ast)
+					}
+				}
+				ast = &Node{
 					KindName: p.gram.ParsingTable.NonTerminals[lhs],
 					Children: children,
-				},
+				}
+			}
+
+			p.semStack = p.semStack[:len(p.semStack)-n]
+			p.semStack = append(p.semStack, &semanticFrame{
+				cst: cst,
+				ast: ast,
 			})
 		default:
 			return fmt.Errorf("unexpected token: %v", tok)
@@ -159,6 +206,10 @@ func (p *Parser) pop(n int) {
 	p.stateStack = p.stateStack[:len(p.stateStack)-n]
 }
 
-func (p *Parser) GetCST() *CST {
+func (p *Parser) CST() *Node {
 	return p.cst
 }
+
+func (p *Parser) AST() *Node {
+	return p.ast
+}
diff --git a/driver/parser_test.go b/driver/parser_test.go
index 152a8c1..a12ee3a 100644
--- a/driver/parser_test.go
+++ b/driver/parser_test.go
@@ -1,6 +1,7 @@
 package driver
 
 import (
+	"fmt"
 	"strings"
 	"testing"
 
@@ -12,6 +13,7 @@ func TestParser_Parse(t *testing.T) {
 	tests := []struct {
 		specSrc string
 		src     string
+		specErr bool
 	}{
 		{
 			specSrc: `
@@ -87,29 +89,92 @@ fragment words: "[A-Za-z\u{0020}]+";
 `,
 			src: `THE TRUTH IS OUT THERE.`,
 		},
+		// A grammar can contain ast actions.
+		{
+			specSrc: `
+list
+    : "\[" elems "]" # ast '(list $2...)
+    ;
+elems
+    : elems "," id # ast '(elems $1... $3)
+    | id
+    ;
+whitespace: "\u{0020}+" # skip;
+id: "[A-Za-z]+";
+`,
+			src: `[Byers, Frohike, Langly]`,
+		},
+		// The first element of a tree structure must be the same ID as an LHS of a production.
+		{
+			specSrc: `
+s
+    : foo # ast '(start $1)
+    ;
+foo
+    : bar
+    ;
+bar: "bar";
+`,
+			specErr: true,
+		},
+		// An ast action cannot be applied to a terminal symbol.
+		{
+			specSrc: `
+s
+    : "foo" # ast '(s $1...)
+    ;
+`,
+			specErr: true,
+		},
+		// The expansion cannot be applied to a terminal symbol.
+		{
+			specSrc: `
+s
+    : foo # ast '(s $1...)
+    ;
+foo: "foo";
+`,
+			specErr: true,
+		},
 	}
-	for _, tt := range tests {
-		ast, err := spec.Parse(strings.NewReader(tt.specSrc))
-		if err != nil {
-			t.Fatal(err)
-		}
-		g, err := grammar.NewGrammar(ast)
-		if err != nil {
-			t.Fatal(err)
-		}
-		gram, err := grammar.Compile(g)
-		if err != nil {
-			t.Fatal(err)
-		}
-		p, err := NewParser(gram, strings.NewReader(tt.src))
-		if err != nil {
-			t.Fatal(err)
-		}
-		err = p.Parse()
-		if err != nil {
-			t.Fatal(err)
-		}
+	for i, tt := range tests {
+		t.Run(fmt.Sprintf("#%v", i), func(t *testing.T) {
+			ast, err := spec.Parse(strings.NewReader(tt.specSrc))
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			g, err := grammar.NewGrammar(ast)
+			if tt.specErr {
+				if err == nil {
+					t.Fatal("an expected error didn't occur")
+				}
+				fmt.Printf("error: %v\n", err)
+				return
+			} else {
+				if err != nil {
+					t.Fatal(err)
+				}
+			}
+
+			gram, err := grammar.Compile(g)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			p, err := NewParser(gram, strings.NewReader(tt.src))
+			if err != nil {
+				t.Fatal(err)
+			}
+			err = p.Parse()
+			if err != nil {
+				t.Fatal(err)
+			}
 
-		printCST(p.GetCST(), 0)
+			fmt.Println("CST:")
+			PrintTree(p.CST(), 0)
+			fmt.Println("AST:")
+			PrintTree(p.AST(), 0)
+		})
 	}
 }
diff --git a/grammar/grammar.go b/grammar/grammar.go
index 7479683..05ba836 100644
--- a/grammar/grammar.go
+++ b/grammar/grammar.go
@@ -8,12 +8,18 @@ import (
 	"github.com/nihei9/vartan/spec"
 )
 
+type astActionEntry struct {
+	position  int
+	expansion bool
+}
+
 type Grammar struct {
 	lexSpec              *mlspec.LexSpec
 	skipLexKinds         []mlspec.LexKind
 	productionSet        *productionSet
 	augmentedStartSymbol symbol
 	symbolTable          *symbolTable
+	astActions           map[productionID][]*astActionEntry
 }
 
 func NewGrammar(root *spec.RootNode) (*Grammar, error) {
@@ -54,17 +60,20 @@ func NewGrammar(root *spec.RootNode) (*Grammar, error) {
 					act := alt.Action
 					switch act.Name {
 					case "skip":
-						if act.Parameter != "" {
+						param := act.Parameter
+						if param != nil {
 							return nil, fmt.Errorf("action 'skip' needs no parameter")
 						}
 						skip = append(skip, mlspec.LexKind(prod.LHS))
 					case "push":
-						if act.Parameter == "" {
-							return nil, fmt.Errorf("action 'push' needs a parameter")
+						param := act.Parameter
+						if param == nil || param.ID == "" {
+							return nil, fmt.Errorf("action 'push' needs an ID parameter")
 						}
-						push = mlspec.LexModeName(act.Parameter)
+						push = mlspec.LexModeName(param.ID)
 					case "pop":
-						if act.Parameter != "" {
+						param := act.Parameter
+						if param != nil {
 							return nil, fmt.Errorf("action 'pop' needs no parameter")
 						}
 						pop = true
@@ -134,6 +143,7 @@ func NewGrammar(root *spec.RootNode) (*Grammar, error) {
 
 	prods := newProductionSet()
 	var augStartSym symbol
+	astActs := map[productionID][]*astActionEntry{}
 	{
 		startProd := root.Productions[0]
 		augStartText := fmt.Sprintf("%s'", startProd.LHS)
@@ -196,6 +206,51 @@ func NewGrammar(root *spec.RootNode) (*Grammar, error) {
 					return nil, err
 				}
 				prods.append(p)
+
+				if alt.Action != nil {
+					act := alt.Action
+					switch act.Name {
+					case "ast":
+						param := act.Parameter
+						if param == nil || param.Tree == nil {
+							return nil, fmt.Errorf("action 'push' needs a tree parameter")
+						}
+						lhsText, ok := symTab.toText(p.lhs)
+						if !ok || param.Tree.Name != lhsText {
+							return nil, fmt.Errorf("a name of a tree structure must be the same ID as an LHS of a production; LHS: %v", lhsText)
+						}
+						astAct := make([]*astActionEntry, len(param.Tree.Children))
+						for i, c := range param.Tree.Children {
+							if c.Position > len(alt.Elements) {
+								return nil, fmt.Errorf("a position must be less than or equal to the length of an alternative; alternative length: %v", len(alt.Elements))
+							}
+
+							if c.Expansion {
+								offset := c.Position - 1
+								elem := alt.Elements[offset]
+								if elem.Pattern != "" {
+									return nil, fmt.Errorf("the expansion symbol cannot be applied to a pattern ($%v: %v)", c.Position, elem.Pattern)
+								}
+								elemSym, ok := symTab.toSymbol(elem.ID)
+								if !ok {
+									// If the symbol was not found, it's a bug.
+									return nil, fmt.Errorf("a symbol corresponding to a position ($%v: %v) was not found", c.Position, elem.ID)
+								}
+								if elemSym.isTerminal() {
+									return nil, fmt.Errorf("the expansion symbol cannot be applied to a terminal symbol ($%v: %v)", c.Position, elem.ID)
+								}
+							}
+
+							astAct[i] = &astActionEntry{
+								position:  c.Position,
+								expansion: c.Expansion,
+							}
+						}
+						astActs[p.id] = astAct
+					default:
+						return nil, fmt.Errorf("invalid action name '%v'", act.Name)
+					}
+				}
 			}
 		}
 	}
@@ -206,6 +261,7 @@ func NewGrammar(root *spec.RootNode) (*Grammar, error) {
 		productionSet:        prods,
 		augmentedStartSymbol: augStartSym,
 		symbolTable:          symTab,
+		astActions:           astActs,
 	}, nil
 }
 
@@ -297,9 +353,24 @@ func Compile(gram *Grammar) (*spec.CompiledGrammar, error) {
 
 	lhsSyms := make([]int, len(gram.productionSet.getAllProductions())+1)
 	altSymCounts := make([]int, len(gram.productionSet.getAllProductions())+1)
+	astActEnties := make([][]int, len(gram.productionSet.getAllProductions())+1)
 	for _, p := range gram.productionSet.getAllProductions() {
 		lhsSyms[p.num] = p.lhs.num().Int()
 		altSymCounts[p.num] = p.rhsLen
+
+		astAct, ok := gram.astActions[p.id]
+		if !ok {
+			continue
+		}
+		astActEntry := make([]int, len(astAct))
+		for i, e := range astAct {
+			if e.expansion {
+				astActEntry[i] = e.position * -1
+			} else {
+				astActEntry[i] = e.position
+			}
+		}
+		astActEnties[p.num] = astActEntry
 	}
 
 	return &spec.CompiledGrammar{
@@ -325,5 +396,8 @@ func Compile(gram *Grammar) (*spec.CompiledGrammar, error) {
 			NonTerminalCount:        tab.nonTerminalCount,
 			EOFSymbol:               symbolEOF.num().Int(),
 		},
+		ASTAction: &spec.ASTAction{
+			Entries: astActEnties,
+		},
 	}, nil
 }
diff --git a/spec/clexspec.json b/spec/clexspec.json
index ec889d6..fb98a6b 100644
--- a/spec/clexspec.json
+++ b/spec/clexspec.json
@@ -1 +1 @@
-{"initial_mode":1,"modes":["","default","terminal"],"compression_level":2,"specs":[null,{"kinds":["","white_space","newline","line_comment","kw_fragment","identifier","terminal_open","colon","or","semicolon","modifier_marker","action_leader"],"push":[0,0,0,0,0,0,2,0,0,0,0,0],"pop":[0,0,0,0,0,0,0,0,0,0,0,0],"dfa":{"initial_state":1,"accepting_states":[0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,5,5,5,5,5,5,5,5,4,1,2,11,6,8,10,2,7,9],"row_count":40,"col_count":256,"transition":{"unique_entries":{"original_row_count":25,"original_col_count":256,"empty_value":0,"entries":[3,3,3,3,3,3,3,3,3,3,0,3,3,0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,5,7,7,7,7,7,7,7,7,7,7,7,7,9,11,11,13,16,16,16,19,31,37,0,0,32,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,31,0,34,33,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,38,39,0,0,0,0,36,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,0,0,0,29,0,29,29,29,29,29,22,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,35,0,0,0,0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,29,29,29,29,29,29,29,29,29,29,0,0,0,0,0,0,0,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,0,0,0,29,0,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,23,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,0,0,0,0,0,0,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,0,0,0,29,0,24,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,0,0,0,0,0,0,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,0,0,0,29,0,29,29,29,29,29,29,25,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,0,0,0,0,0,0,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,0,0,0,29,0,29,29,29,29,29,29,29,29,29,29,29,29,26,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,0,0,0,0,0,0,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,0,0,0,29,0,29,29,29,29,27,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,0,0,0,0,0,0,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,0,0,0,29,0,29,29,29,29,29,29,29,29,29,29,29,29,29,28,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,0,0,0,0,0,0,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,0,0,0,29,0,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,30,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,0,0,0,0,0,0,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,0,0,0,29,0,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,31,0,0,37,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,31,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"bounds":[3,3,3,3,3,3,3,3,3,3,-1,3,3,-1,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,1,1,-1,-1,1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,1,-1,1,1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,1,1,-1,-1,-1,-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,-1,-1,-1,-1,1,-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,-1,1,-1,-1,-1,-1,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,15,15,15,15,15,15,15,15,15,15,-1,-1,-1,-1,-1,-1,-1,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,-1,-1,-1,-1,15,-1,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,16,16,16,16,16,16,16,16,16,16,-1,-1,-1,-1,-1,-1,-1,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,-1,-1,-1,-1,16,-1,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,17,17,17,17,17,17,17,17,17,17,-1,-1,-1,-1,-1,-1,-1,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,-1,-1,-1,-1,17,-1,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,18,18,18,18,18,18,18,18,18,18,-1,-1,-1,-1,-1,-1,-1,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,-1,-1,-1,-1,18,-1,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,19,19,19,19,19,19,19,19,19,19,-1,-1,-1,-1,-1,-1,-1,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,-1,-1,-1,-1,19,-1,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,20,20,20,20,20,20,20,20,20,20,-1,-1,-1,-1,-1,-1,-1,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,-1,-1,-1,-1,20,-1,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,21,21,21,21,21,21,21,21,21,21,-1,-1,-1,-1,-1,-1,-1,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,-1,-1,-1,-1,21,-1,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,22,22,22,22,22,22,22,22,22,22,-1,-1,-1,-1,-1,-1,-1,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,-1,-1,-1,-1,22,-1,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,23,-1,-1,24,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,23,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,2,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1],"row_displacement":[0,236,1555,0,237,1323,301,1387,365,1291,429,493,557,1419,621,765,840,915,990,1065,1140,1215,1290,1554,1556]},"row_nums":[0,1,2,3,4,5,4,6,4,7,4,8,4,9,10,4,11,12,4,13,14,4,15,16,17,18,19,20,21,22,22,23,24,0,0,0,0,0,0,0],"original_row_count":40,"original_col_count":256,"empty_value":0}}},{"kinds":["","pattern","escape_symbol","terminal_close"],"push":[0,0,0,0],"pop":[0,0,0,1],"dfa":{"initial_state":1,"accepting_states":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3],"row_count":78,"col_count":256,"transition":{"unique_entries":{"original_row_count":46,"original_col_count":256,"empty_value":0,"entries":[39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,77,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,20,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,3,5,5,5,5,5,5,5,5,5,5,5,5,7,9,9,11,14,14,14,17,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,22,24,24,24,24,24,24,24,24,24,24,24,24,26,28,28,30,33,33,33,36,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,60,62,62,62,62,62,62,62,62,62,62,62,62,64,66,66,68,71,71,71,74,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,0,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,58,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,0,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,0,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,41,43,43,43,43,43,43,43,43,43,43,43,43,45,47,47,49,52,52,52,55,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,0,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,0,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,56,56,56,56,56,56,56,56,56,56,56,56,56,56,56,56,75,75,75,75,75,75,75,75,75,75,75,75,75,75,75,75,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"bounds":[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,-1,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,-1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,-1,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,-1,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,-1,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,-1,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,33,33,33,33,33,33,33,33,33,33,33,33,33,33,33,33,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1],"row_displacement":[0,0,736,2548,852,2612,916,2372,980,1044,1108,2839,1172,245,2613,1236,2677,1300,2420,1364,1428,1492,2855,1556,735,2678,1620,2742,1684,2468,1748,1812,1876,2871,1940,490,2743,2004,2807,2068,2516,2132,2196,2260,2887,2324]},"row_nums":[0,1,2,3,2,4,2,5,2,6,2,7,8,2,9,10,2,11,12,2,13,2,14,2,15,2,16,2,17,2,18,19,2,20,21,2,22,23,2,24,2,25,2,26,2,27,2,28,2,29,30,2,31,32,2,33,34,2,35,2,36,2,37,2,38,2,39,2,40,41,2,42,43,2,44,45,2,0],"original_row_count":78,"original_col_count":256,"empty_value":0}}}]}
+{"initial_mode":1,"modes":["","default","terminal"],"compression_level":2,"specs":[null,{"kinds":["","white_space","newline","line_comment","kw_fragment","identifier","terminal_open","colon","or","semicolon","modifier_marker","action_leader","tree_node_open","tree_node_close","position","expansion"],"push":[0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0],"pop":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"dfa":{"initial_state":1,"accepting_states":[0,0,2,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,5,5,5,5,5,5,5,0,14,1,4,5,0,2,11,15,8,14,7,9,6,10,12,13],"row_count":49,"col_count":256,"transition":{"unique_entries":{"original_row_count":30,"original_col_count":256,"empty_value":0,"entries":[6,6,6,6,6,6,6,6,6,6,0,6,6,0,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,8,10,10,10,10,10,10,10,10,10,10,10,10,12,14,14,16,19,19,19,22,34,38,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,34,0,45,39,32,0,0,37,0,48,0,0,0,0,3,5,0,0,0,0,0,0,0,0,0,0,43,44,0,0,0,0,46,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,0,0,0,36,0,36,36,36,36,36,25,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,41,0,0,0,0,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,36,36,36,36,36,36,36,36,36,36,0,0,0,0,0,0,0,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,0,0,0,36,0,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,26,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,0,0,0,0,0,0,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,0,0,0,36,0,27,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,0,0,0,0,0,0,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,0,0,0,36,0,36,36,36,36,36,36,28,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,0,0,0,0,0,0,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,0,0,0,36,0,36,36,36,36,36,36,36,36,36,36,36,36,29,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,0,0,0,0,0,0,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,0,0,0,36,0,36,36,36,36,30,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,0,0,0,0,0,0,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,0,0,0,36,0,36,36,36,36,36,36,36,36,36,36,36,36,36,31,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,0,0,0,0,0,0,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,0,0,0,36,0,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,35,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,0,0,0,0,0,0,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,0,0,0,36,0,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,42,33,33,33,33,33,33,33,33,33,33,33,33,33,33,33,33,33,33,33,34,0,38,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,34,0,0,0,0,0,0,0,0,0,0,0,0,47,0,0,4,40,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"bounds":[6,6,6,6,6,6,6,6,6,6,-1,6,6,-1,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,1,1,-1,-1,1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,1,-1,1,1,1,-1,-1,1,-1,1,-1,-1,-1,-1,1,1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,1,1,-1,-1,-1,-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,-1,-1,-1,-1,1,-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,-1,1,-1,-1,-1,-1,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,18,18,18,18,18,18,18,18,18,18,-1,-1,-1,-1,-1,-1,-1,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,-1,-1,-1,-1,18,-1,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,19,19,19,19,19,19,19,19,19,19,-1,-1,-1,-1,-1,-1,-1,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,-1,-1,-1,-1,19,-1,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,20,20,20,20,20,20,20,20,20,20,-1,-1,-1,-1,-1,-1,-1,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,-1,-1,-1,-1,20,-1,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,21,21,21,21,21,21,21,21,21,21,-1,-1,-1,-1,-1,-1,-1,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,-1,-1,-1,-1,21,-1,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,22,22,22,22,22,22,22,22,22,22,-1,-1,-1,-1,-1,-1,-1,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,-1,-1,-1,-1,22,-1,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,23,23,23,23,23,23,23,23,23,23,-1,-1,-1,-1,-1,-1,-1,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,-1,-1,-1,-1,23,-1,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,24,24,24,24,24,24,24,24,24,24,-1,-1,-1,-1,-1,-1,-1,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,-1,-1,-1,-1,24,-1,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,28,28,28,28,28,28,28,28,28,28,-1,-1,-1,-1,-1,-1,-1,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,-1,-1,-1,-1,28,-1,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,25,25,25,25,25,25,25,25,25,25,26,26,26,26,26,26,26,26,26,26,27,-1,2,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,27,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,29,-1,-1,3,4,-1,5,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1],"row_displacement":[0,236,1575,1576,1577,1578,0,237,1323,301,1387,365,1291,429,493,557,1419,621,765,840,915,990,1065,1140,1215,1515,1525,1574,1290,1579]},"row_nums":[0,1,2,3,4,5,6,7,8,7,9,7,10,7,11,7,12,13,7,14,15,7,16,17,7,18,19,20,21,22,23,24,25,26,27,28,28,29,0,0,0,0,0,0,0,0,0,0,0],"original_row_count":49,"original_col_count":256,"empty_value":0}}},{"kinds":["","pattern","escape_symbol","terminal_close"],"push":[0,0,0,0],"pop":[0,0,0,1],"dfa":{"initial_state":1,"accepting_states":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3],"row_count":78,"col_count":256,"transition":{"unique_entries":{"original_row_count":46,"original_col_count":256,"empty_value":0,"entries":[39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,77,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,20,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,3,5,5,5,5,5,5,5,5,5,5,5,5,7,9,9,11,14,14,14,17,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,22,24,24,24,24,24,24,24,24,24,24,24,24,26,28,28,30,33,33,33,36,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,60,62,62,62,62,62,62,62,62,62,62,62,62,64,66,66,68,71,71,71,74,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,0,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,58,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,0,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,0,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,41,43,43,43,43,43,43,43,43,43,43,43,43,45,47,47,49,52,52,52,55,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,53,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,54,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,67,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,72,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,73,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,76,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,69,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,0,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,46,0,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,56,56,56,56,56,56,56,56,56,56,56,56,56,56,56,56,75,75,75,75,75,75,75,75,75,75,75,75,75,75,75,75,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"bounds":[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,-1,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,-1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,-1,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,26,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,30,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,34,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,37,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,42,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,-1,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,-1,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,-1,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,38,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,33,33,33,33,33,33,33,33,33,33,33,33,33,33,33,33,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1],"row_displacement":[0,0,736,2548,852,2612,916,2372,980,1044,1108,2839,1172,245,2613,1236,2677,1300,2420,1364,1428,1492,2855,1556,735,2678,1620,2742,1684,2468,1748,1812,1876,2871,1940,490,2743,2004,2807,2068,2516,2132,2196,2260,2887,2324]},"row_nums":[0,1,2,3,2,4,2,5,2,6,2,7,8,2,9,10,2,11,12,2,13,2,14,2,15,2,16,2,17,2,18,19,2,20,21,2,22,23,2,24,2,25,2,26,2,27,2,28,2,29,30,2,31,32,2,33,34,2,35,2,36,2,37,2,38,2,39,2,40,41,2,42,43,2,44,45,2,0],"original_row_count":78,"original_col_count":256,"empty_value":0}}}]}
diff --git a/spec/grammar.go b/spec/grammar.go
index 44ef3ee..625b6c2 100644
--- a/spec/grammar.go
+++ b/spec/grammar.go
@@ -5,6 +5,7 @@ import mlspec "github.com/nihei9/maleeni/spec"
 type CompiledGrammar struct {
 	LexicalSpecification *LexicalSpecification `json:"lexical_specification"`
 	ParsingTable         *ParsingTable         `json:"parsing_table"`
+	ASTAction            *ASTAction            `json:"ast_action"`
 }
 
 type LexicalSpecification struct {
@@ -32,3 +33,7 @@ type ParsingTable struct {
 	NonTerminalCount        int      `json:"non_terminal_count"`
 	EOFSymbol               int      `json:"eof_symbol"`
 }
+
+type ASTAction struct {
+	Entries [][]int `json:"entries"`
+}
diff --git a/spec/lexer.go b/spec/lexer.go
index a8e46ad..14c4074 100644
--- a/spec/lexer.go
+++ b/spec/lexer.go
@@ -7,6 +7,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"strconv"
 	"strings"
 
 	mldriver "github.com/nihei9/maleeni/driver"
@@ -24,6 +25,10 @@ const (
 	tokenKindSemicolon       = tokenKind(";")
 	tokenKindModifierMarker  = tokenKind("@")
 	tokenKindActionLeader    = tokenKind("#")
+	tokenKindTreeNodeOpen    = tokenKind("'(")
+	tokenKindTreeNodeClose   = tokenKind(")")
+	tokenKindPosition        = tokenKind("$")
+	tokenKindExpantion       = tokenKind("...")
 	tokenKindEOF             = tokenKind("eof")
 	tokenKindInvalid         = tokenKind("invalid")
 )
@@ -31,6 +36,7 @@ const (
 type token struct {
 	kind tokenKind
 	text string
+	num  int
 }
 
 func newSymbolToken(kind tokenKind) *token {
@@ -53,6 +59,13 @@ func newTerminalPatternToken(text string) *token {
 	}
 }
 
+func newPositionToken(num int) *token {
+	return &token{
+		kind: tokenKindPosition,
+		num:  num,
+	}
+}
+
 func newEOFToken() *token {
 	return &token{
 		kind: tokenKindEOF,
@@ -144,6 +157,22 @@ func (l *lexer) next() (*token, error) {
 			return newSymbolToken(tokenKindModifierMarker), nil
 		case "action_leader":
 			return newSymbolToken(tokenKindActionLeader), nil
+		case "tree_node_open":
+			return newSymbolToken(tokenKindTreeNodeOpen), nil
+		case "tree_node_close":
+			return newSymbolToken(tokenKindTreeNodeClose), nil
+		case "position":
+			// Remove '$' character and convert to an integer.
+			num, err := strconv.Atoi(tok.Text()[1:])
+			if err != nil {
+				return nil, err
+			}
+			if num == 0 {
+				return nil, synErrZeroPos
+			}
+			return newPositionToken(num), nil
+		case "expansion":
+			return newSymbolToken(tokenKindExpantion), nil
 		default:
 			return newInvalidToken(tok.Text()), nil
 		}
diff --git a/spec/lexer_test.go b/spec/lexer_test.go
index 7701ce7..bd7fbf0 100644
--- a/spec/lexer_test.go
+++ b/spec/lexer_test.go
@@ -14,7 +14,7 @@ func TestLexer_Run(t *testing.T) {
 	}{
 		{
 			caption: "the lexer can recognize all kinds of tokens",
-			src:     `id"terminal":|;@#`,
+			src:     `id"terminal":|;@#'()$1...`,
 			tokens: []*token{
 				newIDToken("id"),
 				newTerminalPatternToken("terminal"),
@@ -23,6 +23,10 @@ func TestLexer_Run(t *testing.T) {
 				newSymbolToken(tokenKindSemicolon),
 				newSymbolToken(tokenKindModifierMarker),
 				newSymbolToken(tokenKindActionLeader),
+				newSymbolToken(tokenKindTreeNodeOpen),
+				newSymbolToken(tokenKindTreeNodeClose),
+				newPositionToken(1),
+				newSymbolToken(tokenKindExpantion),
 				newEOFToken(),
 			},
 		},
@@ -68,6 +72,11 @@ bar // This is the fourth comment.
 			err:     synErrIncompletedEscSeq,
 		},
 		{
+			caption: "a position must be greater than or equal to 1",
+			src:     `$0`,
+			err:     synErrZeroPos,
+		},
+		{
 			caption: "the lexer can recognize valid tokens following an invalid token",
 			src:     `abc!!!def`,
 			tokens: []*token{
@@ -123,7 +132,7 @@ bar // This is the fourth comment.
 
 func testToken(t *testing.T, tok, expected *token) {
 	t.Helper()
-	if tok.kind != expected.kind || tok.text != expected.text {
+	if tok.kind != expected.kind || tok.text != expected.text || tok.num != expected.num {
 		t.Fatalf("unexpected token; want: %+v, got: %+v", expected, tok)
 	}
 }
diff --git a/spec/lexspec.json b/spec/lexspec.json
index 6f4bbbf..76fb0e9 100644
--- a/spec/lexspec.json
+++ b/spec/lexspec.json
@@ -85,6 +85,22 @@
 		{
 			"kind": "action_leader",
 			"pattern": "#"
+		},
+		{
+			"kind": "tree_node_open",
+			"pattern": "'\\("
+		},
+		{
+			"kind": "tree_node_close",
+			"pattern": "\\)"
+		},
+		{
+			"kind": "position",
+			"pattern": "$(0|[1-9][0-9]*)"
+		},
+		{
+			"kind": "expansion",
+			"pattern": "\\.\\.\\."
 		}
 	]
 }
diff --git a/spec/parser.go b/spec/parser.go
index a2c41f8..6f5e13f 100644
--- a/spec/parser.go
+++ b/spec/parser.go
@@ -32,7 +32,22 @@ type ElementNode struct {
 
 type ActionNode struct {
 	Name      string
-	Parameter string
+	Parameter *ParameterNode
+}
+
+type ParameterNode struct {
+	ID   string
+	Tree *TreeStructNode
+}
+
+type TreeStructNode struct {
+	Name     string
+	Children []*TreeChildNode
+}
+
+type TreeChildNode struct {
+	Position  int
+	Expansion bool
 }
 
 type FragmentNode struct {
@@ -203,23 +218,7 @@ func (p *parser) parseAlternative() *AlternativeNode {
 		elems = append(elems, elem)
 	}
 
-	var act *ActionNode
-	if p.consume(tokenKindActionLeader) {
-		if !p.consume(tokenKindID) {
-			raiseSyntaxError(synErrNoActionName)
-		}
-		name := p.lastTok.text
-
-		var param string
-		if p.consume(tokenKindID) {
-			param = p.lastTok.text
-		}
-
-		act = &ActionNode{
-			Name:      name,
-			Parameter: param,
-		}
-	}
+	act := p.parseAction()
 
 	return &AlternativeNode{
 		Elements: elems,
@@ -241,6 +240,62 @@ func (p *parser) parseElement() *ElementNode {
 	return nil
 }
 
+func (p *parser) parseAction() *ActionNode {
+	if !p.consume(tokenKindActionLeader) {
+		return nil
+	}
+
+	if !p.consume(tokenKindID) {
+		raiseSyntaxError(synErrNoActionName)
+	}
+	name := p.lastTok.text
+
+	var param *ParameterNode
+	switch {
+	case p.consume(tokenKindID):
+		param = &ParameterNode{
+			ID: p.lastTok.text,
+		}
+	case p.consume(tokenKindTreeNodeOpen):
+		if !p.consume(tokenKindID) {
+			raiseSyntaxError(synErrTreeInvalidFirstElem)
+		}
+		name := p.lastTok.text
+
+		var children []*TreeChildNode
+		for {
+			if !p.consume(tokenKindPosition) {
+				break
+			}
+
+			child := &TreeChildNode{
+				Position: p.lastTok.num,
+			}
+			if p.consume(tokenKindExpantion) {
+				child.Expansion = true
+			}
+
+			children = append(children, child)
+		}
+
+		if !p.consume(tokenKindTreeNodeClose) {
+			raiseSyntaxError(synErrTreeUnclosed)
+		}
+
+		param = &ParameterNode{
+			Tree: &TreeStructNode{
+				Name:     name,
+				Children: children,
+			},
+		}
+	}
+
+	return &ActionNode{
+		Name:      name,
+		Parameter: param,
+	}
+}
+
 func (p *parser) consume(expected tokenKind) bool {
 	var tok *token
 	var err error
diff --git a/spec/parser_test.go b/spec/parser_test.go
index bacd2cb..7026d32 100644
--- a/spec/parser_test.go
+++ b/spec/parser_test.go
@@ -31,12 +31,34 @@ func TestParse(t *testing.T) {
 		alt.Action = act
 		return alt
 	}
-	action := func(name string, param string) *ActionNode {
+	action := func(name string, param *ParameterNode) *ActionNode {
 		return &ActionNode{
 			Name:      name,
 			Parameter: param,
 		}
 	}
+	idParameter := func(id string) *ParameterNode {
+		return &ParameterNode{
+			ID: id,
+		}
+	}
+	treeParameter := func(name string, children ...*TreeChildNode) *ParameterNode {
+		return &ParameterNode{
+			Tree: &TreeStructNode{
+				Name:     name,
+				Children: children,
+			},
+		}
+	}
+	positionChild := func(pos int) *TreeChildNode {
+		return &TreeChildNode{
+			Position: pos,
+		}
+	}
+	expandChildren := func(c *TreeChildNode) *TreeChildNode {
+		c.Expansion = true
+		return c
+	}
 	id := func(id string) *ElementNode {
 		return &ElementNode{
 			ID: id,
@@ -209,14 +231,14 @@ pop_m2: "<--" # pop;
 					production("push_m1",
 						withAction(
 							alternative(pattern(`->`)),
-							action("push", "m1"),
+							action("push", idParameter("m1")),
 						),
 					),
 					withModifier(
 						production("push_m2",
 							withAction(
 								alternative(pattern(`-->`)),
-								action("push", "m2"),
+								action("push", idParameter("m2")),
 							),
 						),
 						modifier("mode", "m1"),
@@ -225,7 +247,7 @@ pop_m2: "<--" # pop;
 						production("pop_m1",
 							withAction(
 								alternative(pattern(`<-`)),
-								action("pop", ""),
+								action("pop", nil),
 							),
 						),
 						modifier("mode", "m1"),
@@ -234,7 +256,7 @@ pop_m2: "<--" # pop;
 						production("pop_m2",
 							withAction(
 								alternative(pattern(`<--`)),
-								action("pop", ""),
+								action("pop", nil),
 							),
 						),
 						modifier("mode", "m2"),
@@ -242,6 +264,66 @@ pop_m2: "<--" # pop;
 				},
 			},
 		},
+		{
+			caption: "a grammar can contain 'ast' actions",
+			src: `
+s
+    : foo bar_list # ast '(s $1 $2)
+    ;
+bar_list
+    : bar_list bar # ast '(bar_list $1... $2)
+    | bar          # ast '(bar_list $1)
+    ;
+foo: "foo";
+bar: "bar";
+`,
+			ast: &RootNode{
+				Productions: []*ProductionNode{
+					production("s",
+						withAction(
+							alternative(id("foo"), id("bar_list")),
+							action("ast", treeParameter("s", positionChild(1), positionChild(2))),
+						),
+					),
+					production("bar_list",
+						withAction(
+							alternative(id("bar_list"), id("bar")),
+							action("ast", treeParameter("bar_list", expandChildren(positionChild(1)), positionChild(2))),
+						),
+						withAction(
+							alternative(id("bar")),
+							action("ast", treeParameter("bar_list", positionChild(1))),
+						),
+					),
+					production("foo",
+						alternative(pattern("foo")),
+					),
+					production("bar",
+						alternative(pattern("bar")),
+					),
+				},
+			},
+		},
+		{
+			caption: "the first element of a tree structure must be an ID",
+			src: `
+s
+    : foo # ast '($1)
+    ;
+foo: "foo";
+`,
+			synErr: synErrTreeInvalidFirstElem,
+		},
+		{
+			caption: "a tree structure must be closed by ')'",
+			src: `
+s
+    : foo # ast '(s $1
+    ;
+foo: "foo";
+`,
+			synErr: synErrTreeUnclosed,
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.caption, func(t *testing.T) {
@@ -315,9 +397,7 @@ func testAlternativeNode(t *testing.T, alt, expected *AlternativeNode) {
 		if alt.Action == nil {
 			t.Fatalf("an action is not set; want: %+v, got: nil", expected.Action)
 		}
-		if expected.Action.Name != alt.Action.Name || expected.Action.Parameter != alt.Action.Parameter {
-			t.Fatalf("unexpected action; want: %+v, got: %+v", expected.Action, alt.Action)
-		}
+		testAction(t, alt.Action, expected.Action)
 	}
 }
 
@@ -327,3 +407,46 @@ func testElementNode(t *testing.T, elem, expected *ElementNode) {
 		t.Fatalf("unexpected pattern; want: %v, got: %v", expected.Pattern, elem.Pattern)
 	}
 }
+
+func testAction(t *testing.T, act, expected *ActionNode) {
+	t.Helper()
+	if expected.Name != act.Name {
+		t.Fatalf("unexpected action name; want: %+v, got: %+v", expected.Name, act.Name)
+	}
+	if expected.Parameter == nil && act.Parameter != nil {
+		t.Fatalf("unexpected action parameter; want: nil, got: %+v", act.Parameter)
+	}
+	if expected.Parameter != nil {
+		if act.Parameter == nil {
+			t.Fatalf("unexpected action parameter; want: %+v, got: nil", expected.Parameter)
+		}
+		testParameter(t, act.Parameter, expected.Parameter)
+	}
+}
+
+func testParameter(t *testing.T, param, expected *ParameterNode) {
+	t.Helper()
+	if param.ID != expected.ID {
+		t.Fatalf("unexpected ID parameter; want: %v, got: %v", expected.ID, param.ID)
+	}
+	if expected.Tree == nil && param.Tree != nil {
+		t.Fatalf("unexpected tree parameter; want: nil, got: %+v", param.Tree)
+	}
+	if expected.Tree != nil {
+		if param.Tree == nil {
+			t.Fatalf("unexpected tree parameter; want: %+v, got: nil", expected.Tree)
+		}
+		if param.Tree.Name != expected.Tree.Name {
+			t.Fatalf("unexpected node name; want: %v, got: %v", expected.Tree.Name, param.Tree.Name)
+		}
+		if len(param.Tree.Children) != len(expected.Tree.Children) {
+			t.Fatalf("unexpected children; want: %v, got: %v", expected.Tree.Children, param.Tree.Children)
+		}
+		for i, c := range param.Tree.Children {
+			e := expected.Tree.Children[i]
+			if c.Position != e.Position || c.Expansion != e.Expansion {
+				t.Fatalf("unexpected child; want: %+v, got: %+v", e, c)
+			}
+		}
+	}
+}
diff --git a/spec/syntax_error.go b/spec/syntax_error.go
index 371ddec..d0e0dc5 100644
--- a/spec/syntax_error.go
+++ b/spec/syntax_error.go
@@ -21,14 +21,17 @@ var (
 	synErrUnclosedTerminal  = newSyntaxError("unclosed terminal")
 	synErrInvalidEscSeq     = newSyntaxError("invalid escape sequence")
 	synErrIncompletedEscSeq = newSyntaxError("incompleted escape sequence; unexpected EOF following \\")
+	synErrZeroPos           = newSyntaxError("a position must be greater than or equal to 1")
 
 	// syntax errors
-	synErrInvalidToken      = newSyntaxError("invalid token")
-	synErrNoProduction      = newSyntaxError("a grammar must have at least one production")
-	synErrNoProductionName  = newSyntaxError("a production name is missing")
-	synErrNoColon           = newSyntaxError("the colon must precede alternatives")
-	synErrNoSemicolon       = newSyntaxError("the semicolon is missing at the last of an alternative")
-	synErrNoModifierName    = newSyntaxError("a modifier needs a name")
-	synErrNoActionName      = newSyntaxError("an action needs a name")
-	synErrFragmentNoPattern = newSyntaxError("a fragment needs one pattern element")
+	synErrInvalidToken         = newSyntaxError("invalid token")
+	synErrNoProduction         = newSyntaxError("a grammar must have at least one production")
+	synErrNoProductionName     = newSyntaxError("a production name is missing")
+	synErrNoColon              = newSyntaxError("the colon must precede alternatives")
+	synErrNoSemicolon          = newSyntaxError("the semicolon is missing at the last of an alternative")
+	synErrNoModifierName       = newSyntaxError("a modifier needs a name")
+	synErrNoActionName         = newSyntaxError("an action needs a name")
+	synErrFragmentNoPattern    = newSyntaxError("a fragment needs one pattern element")
+	synErrTreeInvalidFirstElem = newSyntaxError("the first element of a tree structure must be an ID")
+	synErrTreeUnclosed         = newSyntaxError("unclosed tree structure")
 )