template

go/tgpl/ch4/issuesreport.go

@@ -0,0 +1,78 @@
+const templ = `{{.TotalCount}} issues:
+{{range .Items}}----------------------------------------
+Number: {{.Number}}
+User:   {{.User.Login}}
+Title:  {{.Title | printf "%.64s"}}
+Age:    {{.CreatedAt | daysAgo}} days
+{{end}}`
+
+func daysAgo(t time.Time) int {
+	return int(time.Since(t).Hours() / 24)
+}
+
+report, err := template.New("report").
+    Funcs(template.FuncMap{"daysAgo": daysAgo}).
+    Parse(templ)
+
+if err != nil {
+    log.Fatal(err)
+}
+
+var report = template.Must(template.New("issuelist").
+    Funcs(template.FuncMap{"daysAgo": daysAgo}).
+    Parse(templ))
+
+func main() {
+    result, err := github.SearchIssues(os.Args[1:])
+
+    if err != nil {
+        log.Fatal(err)
+    }
+
+    if err := report.Execute(os.Stdout, result); err != nil {
+        log.Fatal(err)
+    }
+}
+
+
+// html template
+import "html/template"
+var issueList = template.Must(template.New("issuelist").Parse(`
+<h1>{{.TotalCount}} issues</h1>
+<table>
+<tr style='text-align: left'>
+<th>#</th>
+<th>State</th>
+<th>User</th>
+<th>Title</th>
+</tr>
+{{range .Items}}
+<tr>
+<td><a href='{{.HTMLURL}}'>{{.Number}}</td>
+<td>{{.State}}</td>
+<td><a href='{{.User.HTMLURL}}'>{{.User.Login}}</a></td>
+<td><a href='{{.HTMLURL}}'>{{.Title}}</a></td>
+</tr>
+{{end}}
+</table>
+`))
+
+
+// autoescape
+func main() {
+    const templ = `<p>A: {{.A}}</p><p>B: {{.B}}</p>`
+
+    t := template.Must(template.New("escape").Parse(templ))
+    var data struct {
+        A string        // untrusted plain text
+        B template.HTML // trusted HTML
+    }
+
+    data.A = "<b>Hello!</b>"
+    data.B = "<b>Hello!</b>"
+
+    if err := t.Execute(os.Stdout, data); err != nil {
+        log.Fatal(err)
+    }
+
+}