func (r *ReplaceFilter) Replace(input interface{}, data map[string]interface{}) interface{} {
target := core.ToBytes(r.target.Resolve(data))
with := core.ToBytes(r.with.Resolve(data))
switch typed := input.(type) {
case string:
return strings.Replace(typed, string(target), string(with), r.count)
case []byte:
return bytes.Replace(typed, target, with, r.count)
default:
return input
}
}
func (o *Output) Render(writer io.Writer, data map[string]interface{}) {
value := o.Value.Resolve(data)
if o.Filters != nil {
for _, filter := range o.Filters {
value = filter(value, data)
}
}
writer.Write(core.ToBytes(value))
}
// join elements of the array with certain character between them
func (f *JoinFilter) Join(input interface{}, data map[string]interface{}) interface{} {
value := reflect.ValueOf(input)
kind := value.Kind()
if kind != reflect.Array && kind != reflect.Slice {
return input
}
l := value.Len()
if l == 0 {
return input
}
array := make([][]byte, l)
for i := 0; i < l; i++ {
array[i] = core.ToBytes(value.Index(i).Interface())
}
glue := core.ToBytes(f.glue.Resolve(data))
return bytes.Join(array, glue)
}
func (o *Output) Execute(writer io.Writer, data map[string]interface{}) core.ExecuteState {
value := o.Value.Resolve(data)
if o.Filters != nil {
for _, filter := range o.Filters {
value = filter(value, data)
}
}
writer.Write(core.ToBytes(value))
return core.Normal
}
func (f *DebugFilter) Debug(input interface{}, data map[string]interface{}) interface{} {
l := len(f.parameters)
if l == 0 {
return []byte("debug(" + input.(string) + ")")
}
values := make([]string, l)
for i := 0; i < l; i++ {
values[i] = string(core.ToBytes(f.parameters[i].Resolve(data)))
}
return []byte("debug(" + input.(string) + ", " + strings.Join(values, ", ") + ")")
}
func (a *PrependFilter) Prepend(input interface{}, data map[string]interface{}) interface{} {
var value string
switch typed := a.value.Resolve(data).(type) {
case string:
value = typed
default:
value = string(core.ToBytes(typed))
}
switch typed := input.(type) {
case string:
return value + typed
default:
return value + core.ToString(typed)
}
}