xesite/cmd/site/internal/front/front.go

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2019-03-21 14:55:32 +00:00
// Package front provides YAML frontmatter unmarshalling.
package front
import (
"bytes"
"gopkg.in/yaml.v2"
)
// Delimiter.
var delim = []byte("---")
// Unmarshal parses YAML frontmatter and returns the content. When no
// frontmatter delimiters are present the original content is returned.
func Unmarshal(b []byte, v interface{}) (content []byte, err error) {
if !bytes.HasPrefix(b, delim) {
return b, nil
}
parts := bytes.SplitN(b, delim, 3)
content = parts[2]
err = yaml.Unmarshal(parts[1], v)
return
}