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-rw-r--r--skate/map.go4
1 files changed, 2 insertions, 2 deletions
diff --git a/skate/map.go b/skate/map.go
index 4a79c1c..7000f6a 100644
--- a/skate/map.go
+++ b/skate/map.go
@@ -120,8 +120,8 @@ func Identity(p []byte) ([][]byte, error) {
return [][]byte{p}, nil
}
-// CreateFixedMapper extract the value from a given fixed top level json key.
-// Returns a function that maps doc to (v, doc).
+// CreateFixedMapper extract the value from a given fixed json key, e.g.
+// ".biblio.doi" and the like. Returns a function that maps doc to (value, doc).
func CreateFixedMapper(field string) Mapper {
f := func(p []byte) ([][]byte, error) {
result := gjson.GetBytes(p, field)