package beego //@todo add template funcs import ( //"fmt" "errors" "fmt" "github.com/russross/blackfriday" "html/template" "strings" "time" ) var beegoTplFuncMap template.FuncMap func init() { beegoTplFuncMap = make(template.FuncMap) beegoTplFuncMap["markdown"] = MarkDown beegoTplFuncMap["dateformat"] = DateFormat beegoTplFuncMap["compare"] = Compare } // MarkDown parses a string in MarkDown format and returns HTML. Used by the template parser as "markdown" func MarkDown(raw string) (output template.HTML) { input := []byte(raw) bOutput := blackfriday.MarkdownBasic(input) output = template.HTML(string(bOutput)) return } // DateFormat takes a time and a layout string and returns a string with the formatted date. Used by the template parser as "dateformat" func DateFormat(t time.Time, layout string) (datestring string) { datestring = t.Format(layout) return } // Compare is a quick and dirty comparison function. It will convert whatever you give it to strings and see if the two values are equal. // Whitespace is trimmed. Used by the template parser as "eq" func Compare(a, b interface{}) (equal bool) { equal = false if strings.TrimSpace(fmt.Sprintf("%v", a)) == strings.TrimSpace(fmt.Sprintf("%v", b)) { equal = true } return } // AddFuncMap let user to register a func in the template func AddFuncMap(key string, funname interface{}) error { if _, ok := beegoTplFuncMap[key]; ok { beegoTplFuncMap[key] = funname return nil } return errors.New("funcmap already has the key") }