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// Copyright 2019 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package resource
import (
"github.com/gohugoio/hugo/common/maps"
"github.com/spf13/cast"
)
func Param(r ResourceParamsProvider, fallback maps.Params, key interface{}) (interface{}, error) {
keyStr, err := cast.ToStringE(key)
if err != nil {
return nil, err
}
if fallback == nil {
return maps.GetNestedParam(keyStr, ".", r.Params())
}
return maps.GetNestedParam(keyStr, ".", r.Params(), fallback)
}
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