Merge pull request #291 from rafaelpirolla/master

Add template replace function

Author: jrasell

docs/templates.md

@@ -307,6 +307,20 @@ Render:
 100
 ```
 
+#### replace
+
+Replaces all occurrences of the search string with the replacement string.
+
+Example:
+```
+[[ replace "Batman and Robin" "Robin" "Catwoman" ]]
+```
+
+Render:
+```
+Batman and Catwoman
+```
+
 #### timeNow
 
 Returns the current ISO_8601 standard timestamp as a string in the timezone of the machine the rendering was triggered on.

template/funcs.go

@@ -31,6 +31,7 @@ func funcMap(consulClient *consul.Client) template.FuncMap {
 		"parseInt":           parseInt,
 		"parseJSON":          parseJSON,
 		"parseUint":          parseUint,
+		"replace":            replace,
 		"timeNow":            timeNowFunc,
 		"timeNowUTC":         timeNowUTCFunc,
 		"timeNowTimezone":    timeNowTimezoneFunc(),
@@ -202,6 +203,10 @@ func parseUint(s string) (uint64, error) {
 	return result, nil
 }
 
+func replace(input, from, to string) string {
+	return strings.Replace(input, from, to, -1)
+}
+
 func timeNowFunc() string {
 	return time.Now().Format("2006-01-02T15:04:05Z07:00")
 }