init

gen.go

@@ -0,0 +1,5 @@
+package main
+
+//go:generate go get github.com/jteeuwen/go-bindata/...
+//go:generate rm -f static.go
+//go:generate go-bindata -o static.go -pkg=main templates/...

main.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strings"
+	"text/template"
+)
+
+type Person struct {
+	Name string
+	Age  int
+}
+
+func main() {
+	var err error
+	funcMap := template.FuncMap{
+		"title": strings.Title,
+	}
+	base, err := Asset("templates/base.txt")
+	if err != nil {
+		panic(err)
+	}
+	tmpl, err := template.New("base").Funcs(funcMap).Parse(string(base))
+
+	templates := make(map[string]*template.Template)
+
+	templateFiles := []struct {
+		name string
+		path string
+	}{
+		{"body", "templates/body.txt"},
+		{"detail", "templates/detail.txt"},
+		{"pic", "templates/pic.txt"},
+	}
+	for _, tf := range templateFiles {
+		a, err := Asset(tf.path)
+		if err != nil {
+			panic(err)
+		}
+		t, err := tmpl.Clone()
+		if err != nil {
+			panic(err)
+		}
+
+		t, err = t.Parse(string(a))
+		templates[tf.name] = t
+	}
+
+	person := Person{"bilbo", 111}
+	for _, name := range []string{"body", "detail", "pic"} {
+		fmt.Println("--------------------------------------")
+		err = templates[name].Execute(os.Stdout, person)
+		if err != nil {
+			panic(err)
+		}
+	}
+	fmt.Println("--------------------------------------")
+}

templates/base.txt

@@ -0,0 +1,3 @@
+{{  define "header" }}head {{ template "title" .Name }}{{ end }}
+{{  define "footer" }}foot {{ if . }}{{ . }}{{ end }} {{ end }}
+{{ template "body" . }}

templates/body.txt

@@ -0,0 +1,7 @@
+{{ define "body" }}
+{{ template "header" . }}
+body: {{ .Name  | title}} is {{ .Age }} years old
+{{ template "footer" .Name }}
+{{ end }}
+
+{{ define "title" }} This is {{ . }}'s body {{ end }}

templates/detail.txt

@@ -0,0 +1,7 @@
+{{ define "body" }}
+{{ template "header" . }}
+no actual details about {{ .Name }}
+{{ template "footer" }}
+{{ end }}
+
+{{ define "title" }} This is {{ . }}'s detail {{ end }}

templates/pic.txt

@@ -0,0 +1,7 @@
+{{ define "body" }}
+{{ template "header" . }}
+pic: {{ .Name  | title}} is {{ .Age }} years old
+{{ template "footer" }}
+{{ end }}
+
+{{ define "title" }} This is {{ . }}'s pic {{ end }}