1 files changed, 24 insertions, 0 deletions
diff --git a/internal/front/front.go b/internal/front/front.go
new file mode 100644
index 0000000..b2c7f0e
--- /dev/null
+++ b/internal/front/front.go
@@ -0,0 +1,24 @@
+// 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
+}