golang wiki
http://golang.org/dl/go1.3.darwin-amd64-osx10.8.pkg でインストールした
% go version go version go1.3 darwin/amd64
http://golang.jp/codelab-wiki
やってみたけど、現在は存在しない関数、構造体使っていたので動くようにしたコードが以下
package main import ( "fmt" "net/http" "io/ioutil" "html/template" "regexp" ) const lenPath = len("/view/") type Page struct { Title string Body[]byte } var templates = make(map[string]*template.Template) var titleValidator = regexp.MustCompile("^[a-zA-Z0-9]+$") func (p *Page) save() (err error) { filename := p.Title + ".txt" return ioutil.WriteFile(filename, p.Body, 0600) } func loadPage(title string) (*Page, error) { filename := title + ".txt" body,err := ioutil.ReadFile(filename) if err != nil { return nil, err } return &Page{Title: title, Body: body}, nil } func handler(w http.ResponseWriter, r *http.Request) { fmt.Fprintf(w, "Hi there I Love %s!", r.URL.Path[1:]) } func viewHandler(w http.ResponseWriter, r *http.Request, title string) { p, err := loadPage(title) if err != nil { http.Redirect(w, r, "/edit/" + title, http.StatusFound) return } renderTemplate(w, "view", p) } func editHandler(w http.ResponseWriter, r *http.Request, title string) { p, err := loadPage(title) if err != nil { p = &Page{Title: title} } renderTemplate(w, "edit", p) } func saveHandler(w http.ResponseWriter, r *http.Request, title string) { body := r.FormValue("body") p := &Page{Title: title, Body: []byte(body)} err := p.save() if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) return } } func renderTemplate(w http.ResponseWriter, tmpl string, p *Page) { err := templates[tmpl].Execute(w,p) if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) } } func makeHandler(fn func (http.ResponseWriter, *http.Request, string)) http.HandlerFunc { return func(w http.ResponseWriter, r *http.Request) { title := r.URL.Path[lenPath:] if !titleValidator.MatchString(title) { http.NotFound(w, r) return } fn(w, r, title) } } func init() { for _, tmpl := range []string{"edit", "view"} { t := template.Must(template.ParseFiles(tmpl + ".html")) templates[tmpl] = t } } func main() { http.HandleFunc("/", handler) http.HandleFunc("/view/", makeHandler(viewHandler)) http.HandleFunc("/edit/", makeHandler(editHandler)) http.HandleFunc("/save/", makeHandler(saveHandler)) http.ListenAndServe(":8080", nil) }
こいつ・・・動くぞ
go tool 6g wiki.go go tool 6l wiki.6 ./6.out
もっと簡単にできた
go build wiki.go ./wiki
実行ファイル作らないでも動かせる
go run wiki.go