added pongo2 & pongo2v3 filter registration methods

README.md

@@ -1,8 +1,4 @@
 # ytid
 simple Go package to extract a Youtube ID from a passed URL
 
-## methods
-GetID(url string) string
-
-GETIDWithError(url string) (string, error)
-
+Also for flosch/pongo2 and pongo2v3 filter registration methods

ytid.go

@@ -3,6 +3,9 @@ package ytid
 import (
 	"fmt"
 	"regexp"
+
+	"github.com/flosch/pongo2"
+	p2v3 "gopkg.in/flosch/pongo2.v3"
 )
 
 var (
@@ -16,6 +19,21 @@ var (
 	}
 )
 
+func RegisterPongo2V3() {
+	p2v3.RegisterFilter("ytid", filterYtid2v3)
+}
+func filterYtid2v3(in *p2v3.Value, param *p2v3.Value) (*p2v3.Value, *p2v3.Error) {
+	return p2v3.AsValue(GetID(in.String())), nil
+}
+
+func RegisterPongo() {
+	pongo2.RegisterFilter("ytid", filterYtid)
+
+}
+func filterYtid(in *pongo2.Value, param *pongo2.Value) (*pongo2.Value, *pongo2.Error) {
+	return pongo2.AsValue(GetID(in.String())), nil
+}
+
 func GetID(url string) string {
 	if !regexpYoutubeDomain.MatchString(url) {
 		return ""
@@ -40,6 +58,3 @@ func GetIDWithError(url string) (string, error) {
 	return "", fmt.Errorf("ytid: no match found")
 
 }
-
-/*
- */