예제 #1
0
// This example demonstrates a custom function to process template text.
// It installs the strings.Title function and uses it to
// Make Title Text Look Good In Our Template's Output.
func ExampleTemplate_func() {
	// First we create a FuncMap with which to register the function.
	funcMap := template.FuncMap{
		// The name "title" is what the function will be called in the template text.
		"title": strings.Title,
	}

	// A simple template definition to test our function.
	// We print the input text several ways:
	// - the original
	// - title-cased
	// - title-cased and then printed with %q
	// - printed with %q and then title-cased.
	const templateText = `
Input: {{printf "%q" .}}
Output 0: {{title .}}
Output 1: {{title . | printf "%q"}}
Output 2: {{printf "%q" . | title}}
`

	// Create a template, add the function map, and parse the text.
	tmpl, err := template.New("titleTest").Funcs(funcMap).Parse(templateText)
	if err != nil {
		log.Fatalf("parsing: %s", err)
	}

	// Run the template to verify the output.
	err = tmpl.Execute(os.Stdout, "the go programming language")
	if err != nil {
		log.Fatalf("execution: %s", err)
	}

	// Output:
	// Input: "the go programming language"
	// Output 0: The Go Programming Language
	// Output 1: "The Go Programming Language"
	// Output 2: "The Go Programming Language"
}
예제 #2
0
파일: escape_test.go 프로젝트: hoang-nc/gf
func TestEnsurePipelineContains(t *testing.T) {
	tests := []struct {
		input, output string
		ids           []string
	}{
		{
			"{{.X}}",
			".X",
			[]string{},
		},
		{
			"{{.X | html}}",
			".X | html",
			[]string{},
		},
		{
			"{{.X}}",
			".X | html",
			[]string{"html"},
		},
		{
			"{{.X | html}}",
			".X | html | urlquery",
			[]string{"urlquery"},
		},
		{
			"{{.X | html | urlquery}}",
			".X | html | urlquery",
			[]string{"urlquery"},
		},
		{
			"{{.X | html | urlquery}}",
			".X | html | urlquery",
			[]string{"html", "urlquery"},
		},
		{
			"{{.X | html | urlquery}}",
			".X | html | urlquery",
			[]string{"html"},
		},
		{
			"{{.X | urlquery}}",
			".X | html | urlquery",
			[]string{"html", "urlquery"},
		},
		{
			"{{.X | html | print}}",
			".X | urlquery | html | print",
			[]string{"urlquery", "html"},
		},
		{
			"{{($).X | html | print}}",
			"($).X | urlquery | html | print",
			[]string{"urlquery", "html"},
		},
		{
			"{{.X | print 2 | .f 3}}",
			".X | print 2 | .f 3 | urlquery | html",
			[]string{"urlquery", "html"},
		},
		{
			"{{.X | html | print 2 | .f 3}}",
			".X | urlquery | html | print 2 | .f 3",
			[]string{"urlquery", "html"},
		},
		{
			// covering issue 10801
			"{{.X | js.x }}",
			".X | js.x | urlquery | html",
			[]string{"urlquery", "html"},
		},
		{
			// covering issue 10801
			"{{.X | (print 12 | js).x }}",
			".X | (print 12 | js).x | urlquery | html",
			[]string{"urlquery", "html"},
		},
	}
	for i, test := range tests {
		tmpl := template.Must(template.New("test").Parse(test.input))
		action, ok := (tmpl.Tree.Root.Nodes[0].(*parse.ActionNode))
		if !ok {
			t.Errorf("#%d: First node is not an action: %s", i, test.input)
			continue
		}
		pipe := action.Pipe
		ensurePipelineContains(pipe, test.ids)
		got := pipe.String()
		if got != test.output {
			t.Errorf("#%d: %s, %v: want\n\t%s\ngot\n\t%s", i, test.input, test.ids, test.output, got)
		}
	}
}