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Golang node.Parse函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Golang中github.com/google/badwolf/triple/node.Parse函数的典型用法代码示例。如果您正苦于以下问题：Golang Parse函数的具体用法？Golang Parse怎么用？Golang Parse使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了Parse函数的13个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: TestDataAccessSimpleFetchIssue40

// Issue 40 (https://github.com/google/badwolf/issues/40)
func TestDataAccessSimpleFetchIssue40(t *testing.T) {
	testBindings, ctx := []string{"?itme", "?t"}, context.Background()
	n, err := node.Parse("/room<Bedroom>")
	if err != nil {
		t.Fatalf("node.Parse failed to parse \"/room<Bedroom>\", %v", err)
	}
	cls := &semantic.GraphClause{
		SBinding:       "?item",
		PID:            "in",
		PAnchorBinding: "?t",
		O:              triple.NewNodeObject(n),
	}
	g, err := getTestStore(t, testTemporalTriples).Graph(ctx, "?test")
	if err != nil {
		t.Fatal(err)
	}

	tbl, err := simpleFetch(ctx, []storage.Graph{g}, cls, &storage.LookupOptions{}, 0)
	if err != nil {
		t.Errorf("simpleFetch failed with errorf %v", err)
	}
	if got, want := len(tbl.Bindings()), len(testBindings); got != want {
		t.Errorf("simpleFetch returned a table with wrong bindings set; got %v, want %v", got, want)
	}
	if got, want := tbl.NumRows(), 1; got != want {
		t.Errorf("simpleFetch returned the wrong number of rows; got %d, want %d\n%s", got, want, tbl)
	}
	for _, r := range tbl.Rows() {
		if got, want := len(r), len(testBindings); got != want {
			t.Errorf("simpleFetch returned row %v with the incorrect number of bindings; got %d, want %d", r, got, want)
		}
	}
}
开发者ID:google，项目名称:badwolf，代码行数:34，代码来源:data_access_test.go


示例2: TestDataAccessUnfeasibleSimpleExist

func TestDataAccessUnfeasibleSimpleExist(t *testing.T) {
	ctx := context.Background()
	g, err := getTestStore(t, testImmutatbleTriples).Graph(ctx, "?test")
	if err != nil {
		t.Fatal(err)
	}
	unknown, err := node.Parse("/unknown<unknown>")
	if err != nil {
		t.Fatal(err)
	}
	tt := getTestTriples(t, testImmutatbleTriples)
	s, p, o := unknown, tt[0].Predicate(), tt[0].Object()
	clsNotOK := &semantic.GraphClause{
		S: s,
		P: p,
		O: o,
	}
	tplNotOK, err := triple.New(s, p, o)
	if err != nil {
		t.Fatal(err)
	}
	unfeasible, tbl, err := simpleExist(ctx, []storage.Graph{g}, clsNotOK, tplNotOK)
	if err != nil {
		t.Errorf("simpleExist should have not failed with error %v", err)
	}
	if !unfeasible {
		t.Error(errors.New("simpleExist should have return an unfeasible table instead"))
	}
	if got, want := tbl.NumRows(), 0; got != want {
		t.Errorf("simpleExist failed to return the right number of rows: got %d, want %d", got, want)
	}
}
开发者ID:google，项目名称:badwolf，代码行数:32，代码来源:data_access_test.go


示例3: dataAccumulator

// dataAccumulator creates a element hook that tracks fully formed triples and
// adds them to the Statement when fully formed.
func dataAccumulator(b literal.Builder) ElementHook {
	var (
		hook ElementHook
		s    *node.Node
		p    *predicate.Predicate
		o    *triple.Object
	)

	hook = func(st *Statement, ce ConsumedElement) (ElementHook, error) {
		if ce.IsSymbol() {
			return hook, nil
		}
		tkn := ce.Token()
		if tkn.Type != lexer.ItemNode && tkn.Type != lexer.ItemPredicate && tkn.Type != lexer.ItemLiteral {
			return hook, nil
		}
		if s == nil {
			if tkn.Type != lexer.ItemNode {
				return nil, fmt.Errorf("hook.DataAccumulator requires a node to create a subject, got %v instead", tkn)
			}
			tmp, err := node.Parse(tkn.Text)
			if err != nil {
				return nil, err
			}
			s = tmp
			return hook, nil
		}
		if p == nil {
			if tkn.Type != lexer.ItemPredicate {
				return nil, fmt.Errorf("hook.DataAccumulator requires a predicate to create a predicate, got %v instead", tkn)
			}
			tmp, err := predicate.Parse(tkn.Text)
			if err != nil {
				return nil, err
			}
			p = tmp
			return hook, nil
		}
		if o == nil {
			tmp, err := triple.ParseObject(tkn.Text, b)
			if err != nil {
				return nil, err
			}
			o = tmp
			trpl, err := triple.NewTriple(s, p, o)
			if err != nil {
				return nil, err
			}
			st.AddData(trpl)
			s, p, o = nil, nil, nil
			return hook, nil
		}
		return nil, fmt.Errorf("hook.DataAccumulator has failed to flush the triple %s, %s, %s", s, p, o)
	}
	return hook
}
开发者ID:ranjeet-floyd，项目名称:badwolf，代码行数:58，代码来源:hooks.go


示例4: ToNode

// ToNode converts the node found by the lexer and converts it into a BadWolf
// node.
func ToNode(ce ConsumedElement) (*node.Node, error) {
	if ce.IsSymbol() {
		return nil, fmt.Errorf("semantic.ToNode cannot convert symbol %v to a node", ce)
	}
	tkn := ce.Token()
	if tkn.Type != lexer.ItemNode {
		return nil, fmt.Errorf("semantic.ToNode cannot convert token type %s to a node", tkn.Type)
	}
	return node.Parse(tkn.Text)
}
开发者ID:ranjeet-floyd，项目名称:badwolf，代码行数:12，代码来源:convert.go


示例5: getTestData

func getTestData(t *testing.T) (*node.Node, *predicate.Predicate, *Object) {
	s, err := node.Parse("/some/type<some id>")
	if err != nil {
		t.Fatalf("Failed to create test node")
	}
	p, err := predicate.Parse("\"foo\"@[]")
	if err != nil {
		t.Fatalf("Failed to create test predicate")
	}
	o := NewNodeObject(s)
	return s, p, o
}
开发者ID:ranjeet-floyd，项目名称:badwolf，代码行数:12，代码来源:triple_test.go


示例6: ParseObject

// ParseObject attempts to parse and object.
func ParseObject(s string, b literal.Builder) (*Object, error) {
	n, err := node.Parse(s)
	if err != nil {
		l, err := b.Parse(s)
		if err != nil {
			o, err := predicate.Parse(s)
			if err != nil {
				return nil, err
			}
			return NewPredicateObject(o), nil
		}
		return NewLiteralObject(l), nil
	}
	return NewNodeObject(n), nil
}
开发者ID:ranjeet-floyd，项目名称:badwolf，代码行数:16，代码来源:triple.go


示例7: testNodeTemporalPredicateLiteral

func testNodeTemporalPredicateLiteral(t *testing.T) (*node.Node, *predicate.Predicate, *literal.Literal) {
	n, err := node.Parse(`/foo<bar>`)
	if err != nil {
		t.Fatal(err)
	}
	p, err := predicate.Parse(`"bar"@[1975-01-01T00:01:01.999999999Z]`)
	if err != nil {
		t.Fatal(err)
	}
	l, err := literal.DefaultBuilder().Parse(`"true"^^type:bool`)
	if err != nil {
		t.Fatal(err)
	}
	return n, p, l
}
开发者ID:google，项目名称:badwolf，代码行数:15，代码来源:data_access_test.go


示例8: testNodePredicateLiteral

func testNodePredicateLiteral(t *testing.T) (*node.Node, *predicate.Predicate, *literal.Literal) {
	n, err := node.Parse(`/foo<bar>`)
	if err != nil {
		t.Fatal(err)
	}
	p, err := predicate.Parse(`"foo"@[]`)
	if err != nil {
		t.Fatal(err)
	}
	l, err := literal.DefaultBuilder().Parse(`"true"^^type:bool`)
	if err != nil {
		t.Fatal(err)
	}
	return n, p, l
}
开发者ID:google，项目名称:badwolf，代码行数:15，代码来源:data_access_test.go


示例9: inferCell

// inferCell builds a Cell out of the provided string.
func inferCell(s string) *table.Cell {
	if n, err := node.Parse(s); err == nil {
		return &table.Cell{N: n}
	}
	if p, err := predicate.Parse(s); err == nil {
		return &table.Cell{P: p}
	}
	if l, err := literal.DefaultBuilder().Parse(s); err == nil {
		return &table.Cell{L: l}
	}
	t, err := time.Parse(time.RFC3339Nano, s)
	if err == nil {
		return &table.Cell{T: &t}
	}
	return &table.Cell{S: table.CellString(s)}
}
开发者ID:google，项目名称:badwolf，代码行数:17，代码来源:entry.go


示例10: Parse

// Parse process the provided text and tries to create a triple. It assumes
// that the provided text contains only one triple.
func Parse(line string, b literal.Builder) (*Triple, error) {
	raw := strings.TrimSpace(line)
	idxp := pSplit.FindIndex([]byte(raw))
	idxo := oSplit.FindIndex([]byte(raw))
	if len(idxp) == 0 || len(idxo) == 0 {
		return nil, fmt.Errorf("triple.Parse could not split s p o  out of %s", raw)
	}
	ss, sp, so := raw[0:idxp[0]+1], raw[idxp[1]-1:idxo[0]+1], raw[idxo[1]-1:]
	s, err := node.Parse(ss)
	if err != nil {
		return nil, fmt.Errorf("triple.Parse failed to parse subject %s with error %v", ss, err)
	}
	p, err := predicate.Parse(sp)
	if err != nil {
		return nil, fmt.Errorf("triple.Parse failed to parse predicate %s with error %v", sp, err)
	}
	o, err := ParseObject(so, b)
	if err != nil {
		return nil, fmt.Errorf("triple.Parse failed to parse object %s with error %v", so, err)
	}
	return New(s, p, o)
}
开发者ID:google，项目名称:badwolf，代码行数:24，代码来源:triple.go


示例11: TestWhereObjectClauseHook

func TestWhereObjectClauseHook(t *testing.T) {
	st := &Statement{}
	f := whereObjectClause()
	st.ResetWorkingGraphClause()
	node, err := node.Parse("/_<foo>")
	if err != nil {
		t.Fatalf("node.Parse failed with error %v", err)
	}
	n := triple.NewNodeObject(node)
	pred, err := predicate.Parse(`"foo"@[2015-07-19T13:12:04.669618843-07:00]`)
	if err != nil {
		t.Fatalf("predicate.Parse failed with error %v", err)
	}
	p := triple.NewPredicateObject(pred)
	tlb, err := time.Parse(time.RFC3339Nano, `2015-07-19T13:12:04.669618843-07:00`)
	if err != nil {
		t.Fatalf("time.Parse failed to parse valid lower time bound with error %v", err)
	}
	tub, err := time.Parse(time.RFC3339Nano, `2016-07-19T13:12:04.669618843-07:00`)
	if err != nil {
		t.Fatalf("time.Parse failed to parse valid upper time bound with error %v", err)
	}
	l, err := triple.ParseObject(`"1"^^type:int64`, literal.DefaultBuilder())
	if err != nil {
		t.Fatalf("literal.Parse should have never fail to pars %s with error %v", `"1"^^type:int64`, err)
	}

	runTabulatedClauseHookTest(t, "semantic.whereObjectClause", f, []testClauseTable{
		{
			valid: true,
			id:    "node_example",
			ces: []ConsumedElement{
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemNode,
					Text: "/_<foo>",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemAs,
					Text: "as",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?bar",
				}),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemType,
					Text: "type",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?bar2",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemID,
					Text: "id",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?bar3",
				}),
				NewConsumedSymbol("FOO"),
			},
			want: &GraphClause{
				O:          n,
				OAlias:     "?bar",
				OTypeAlias: "?bar2",
				OIDAlias:   "?bar3",
			},
		},
		{
			valid: true,
			id:    "binding_example",
			ces: []ConsumedElement{
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?foo",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemAs,
					Text: "as",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?bar",
				}),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemType,
					Text: "type",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
//.........这里部分代码省略.........
开发者ID:google，项目名称:badwolf，代码行数:101，代码来源:hooks_test.go


示例12: TestWhereSubjectClauseHook

func TestWhereSubjectClauseHook(t *testing.T) {
	st := &Statement{}
	f := whereSubjectClause()
	st.ResetWorkingGraphClause()
	n, err := node.Parse("/_<foo>")
	if err != nil {
		t.Fatalf("node.Parse failed with error %v", err)
	}
	runTabulatedClauseHookTest(t, "semantic.whereSubjectClause", f, []testClauseTable{
		{
			valid: true,
			id:    "node_example",
			ces: []ConsumedElement{
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemNode,
					Text: "/_<foo>",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemAs,
					Text: "as",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?bar",
				}),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemType,
					Text: "type",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?bar2",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemID,
					Text: "id",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?bar3",
				}),
				NewConsumedSymbol("FOO"),
			},
			want: &GraphClause{
				S:          n,
				SAlias:     "?bar",
				STypeAlias: "?bar2",
				SIDAlias:   "?bar3",
			},
		},
		{
			valid: true,
			id:    "binding_example",
			ces: []ConsumedElement{
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?foo",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemAs,
					Text: "as",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?bar",
				}),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemType,
					Text: "type",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?bar2",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemID,
					Text: "id",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?bar3",
				}),
				NewConsumedSymbol("FOO"),
			},
			want: &GraphClause{
				SBinding:   "?foo",
				SAlias:     "?bar",
				STypeAlias: "?bar2",
//.........这里部分代码省略.........
开发者ID:google，项目名称:badwolf，代码行数:101，代码来源:hooks_test.go


示例13: TestWhereSubjectClauseHook

func TestWhereSubjectClauseHook(t *testing.T) {
	st := &Statement{}
	f := whereSubjectClause()
	st.ResetWorkingGraphClause()
	n, err := node.Parse("/_<foo>")
	if err != nil {
		t.Fatalf("node.Parse failed with error %v", err)
	}
	table := []struct {
		ces  []ConsumedElement
		want *GraphClause
	}{
		{
			ces: []ConsumedElement{
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemNode,
					Text: "/_<foo>",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemAs,
					Text: "as",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?bar",
				}),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemType,
					Text: "type",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?bar2",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemID,
					Text: "id",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?bar3",
				}),
				NewConsumedSymbol("FOO"),
			},
			want: &GraphClause{
				s:          n,
				sAlias:     "?bar",
				sTypeAlias: "?bar2",
				sIDAlias:   "?bar3",
			},
		},
		{
			ces: []ConsumedElement{
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?foo",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemAs,
					Text: "as",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?bar",
				}),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemType,
					Text: "type",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?bar2",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemID,
					Text: "id",
				}),
				NewConsumedSymbol("FOO"),
				NewConsumedToken(&lexer.Token{
					Type: lexer.ItemBinding,
					Text: "?bar3",
				}),
				NewConsumedSymbol("FOO"),
			},
			want: &GraphClause{
				sBinding:   "?foo",
				sAlias:     "?bar",
				sTypeAlias: "?bar2",
				sIDAlias:   "?bar3",
//.........这里部分代码省略.........
开发者ID:mrisher，项目名称:badwolf，代码行数:101，代码来源:hooks_test.go



注：本文中的github.com/google/badwolf/triple/node.Parse函数示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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