mirror of https://github.com/gohugoio/hugo
114 lines
2.5 KiB
Go
114 lines
2.5 KiB
Go
// Copyright 2011 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
//go:build go1.13
|
|
// +build go1.13
|
|
|
|
package template_test
|
|
|
|
import (
|
|
"log"
|
|
"os"
|
|
"strings"
|
|
"text/template"
|
|
)
|
|
|
|
func ExampleTemplate() {
|
|
// Define a template.
|
|
const letter = `
|
|
Dear {{.Name}},
|
|
{{if .Attended}}
|
|
It was a pleasure to see you at the wedding.
|
|
{{- else}}
|
|
It is a shame you couldn't make it to the wedding.
|
|
{{- end}}
|
|
{{with .Gift -}}
|
|
Thank you for the lovely {{.}}.
|
|
{{end}}
|
|
Best wishes,
|
|
Josie
|
|
`
|
|
|
|
// Prepare some data to insert into the template.
|
|
type Recipient struct {
|
|
Name, Gift string
|
|
Attended bool
|
|
}
|
|
recipients := []Recipient{
|
|
{"Aunt Mildred", "bone china tea set", true},
|
|
{"Uncle John", "moleskin pants", false},
|
|
{"Cousin Rodney", "", false},
|
|
}
|
|
|
|
// Create a new template and parse the letter into it.
|
|
t := template.Must(template.New("letter").Parse(letter))
|
|
|
|
// Execute the template for each recipient.
|
|
for _, r := range recipients {
|
|
err := t.Execute(os.Stdout, r)
|
|
if err != nil {
|
|
log.Println("executing template:", err)
|
|
}
|
|
}
|
|
|
|
// Output:
|
|
// Dear Aunt Mildred,
|
|
//
|
|
// It was a pleasure to see you at the wedding.
|
|
// Thank you for the lovely bone china tea set.
|
|
//
|
|
// Best wishes,
|
|
// Josie
|
|
//
|
|
// Dear Uncle John,
|
|
//
|
|
// It is a shame you couldn't make it to the wedding.
|
|
// Thank you for the lovely moleskin pants.
|
|
//
|
|
// Best wishes,
|
|
// Josie
|
|
//
|
|
// Dear Cousin Rodney,
|
|
//
|
|
// It is a shame you couldn't make it to the wedding.
|
|
//
|
|
// Best wishes,
|
|
// Josie
|
|
}
|
|
|
|
// The following example is duplicated in html/template; keep them in sync.
|
|
|
|
func ExampleTemplate_block() {
|
|
const (
|
|
master = `Names:{{block "list" .}}{{"\n"}}{{range .}}{{println "-" .}}{{end}}{{end}}`
|
|
overlay = `{{define "list"}} {{join . ", "}}{{end}} `
|
|
)
|
|
var (
|
|
funcs = template.FuncMap{"join": strings.Join}
|
|
guardians = []string{"Gamora", "Groot", "Nebula", "Rocket", "Star-Lord"}
|
|
)
|
|
masterTmpl, err := template.New("master").Funcs(funcs).Parse(master)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
overlayTmpl, err := template.Must(masterTmpl.Clone()).Parse(overlay)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
if err := masterTmpl.Execute(os.Stdout, guardians); err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
if err := overlayTmpl.Execute(os.Stdout, guardians); err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
// Output:
|
|
// Names:
|
|
// - Gamora
|
|
// - Groot
|
|
// - Nebula
|
|
// - Rocket
|
|
// - Star-Lord
|
|
// Names: Gamora, Groot, Nebula, Rocket, Star-Lord
|
|
}
|