tagliatelle

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include-templates.go (1126B)

      1 package main
      2 
      3 import (
      4 	"fmt"
      5 	"html/template"
      6 	"net/url"
      7 	"strings"
      8 )
      9 
     10 // InitTemplates loads and parses all HTML templates with helper functions
     11 func InitTemplates() (*template.Template, error) {
     12 	return template.New("").Funcs(template.FuncMap{
     13 		"add": func(a, b int) int { return a + b },
     14 		"sub": func(a, b int) int { return a - b },
     15 		"pathEscape": url.PathEscape,
     16 		"hasPrefix": func(s, prefix string) bool {
     17 			return strings.HasPrefix(s, prefix)
     18 		},
     19 		"hasAnySuffix": func(s string, suffixes ...string) bool {
     20 			for _, suf := range suffixes {
     21 				if strings.HasSuffix(strings.ToLower(s), suf) {
     22 					return true
     23 				}
     24 			}
     25 			return false
     26 		},
     27 		"dict": func(values ...interface{}) (map[string]interface{}, error) {
     28 			if len(values)%2 != 0 {
     29 				return nil, fmt.Errorf("dict requires an even number of args")
     30 			}
     31 			dict := make(map[string]interface{}, len(values)/2)
     32 			for i := 0; i < len(values); i += 2 {
     33 				key, ok := values[i].(string)
     34 				if !ok {
     35 					return nil, fmt.Errorf("dict keys must be strings")
     36 				}
     37 				dict[key] = values[i+1]
     38 			}
     39 			return dict, nil
     40 		},
     41 	}).ParseGlob("templates/*.html")
     42 }