1 files changed, 44 insertions, 0 deletions
diff --git a/spdx/common/creation_info.go b/spdx/common/creation_info.go
new file mode 100644
index 0000000..c87ae7b
--- /dev/null
+++ b/spdx/common/creation_info.go
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+
+package common
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+)
+
+// Creator is a wrapper around the Creator SPDX field. The SPDX field contains two values, which requires special
+// handling in order to marshal/unmarshal it to/from Go data types.
+type Creator struct {
+	Creator string
+	// CreatorType should be one of "Person", "Organization", or "Tool"
+	CreatorType string
+}
+
+// UnmarshalJSON takes an annotator in the typical one-line format and parses it into a Creator struct.
+// This function is also used when unmarshalling YAML
+func (c *Creator) UnmarshalJSON(data []byte) error {
+	str := string(data)
+	str = strings.Trim(str, "\"")
+	fields := strings.SplitN(str, ": ", 2)
+
+	if len(fields) != 2 {
+		return fmt.Errorf("failed to parse Creator '%s'", str)
+	}
+
+	c.CreatorType = fields[0]
+	c.Creator = fields[1]
+
+	return nil
+}
+
+// MarshalJSON converts the receiver into a slice of bytes representing a Creator in string form.
+// This function is also used with marshalling to YAML
+func (c Creator) MarshalJSON() ([]byte, error) {
+	if c.Creator != "" {
+		return json.Marshal(fmt.Sprintf("%s: %s", c.CreatorType, c.Creator))
+	}
+
+	return []byte{}, nil
+}