Improve security and simplify code

- Make variable name more semantic
- Reduce cyclomatic complexities for the formula calculate function
- Support specified unzip size limit on open file options, avoid zip bombs vulnerability attack
- Typo fix for documentation and error message

1 files changed, 2 insertions, 2 deletions

diff --git a/stream.go b/stream.go
index 9939016..125b58c 100644
--- a/stream.go
+++ b/stream.go
@@ -346,8 +346,8 @@ func (sw *StreamWriter) SetRow(axis string, values []interface{}, opts ...RowOpt
 // marshalRowAttrs prepare attributes of the row by given options.
 func marshalRowAttrs(opts ...RowOpts) (attrs string, err error) {
 	var opt *RowOpts
-	for _, o := range opts {
-		opt = &o
+	for i := range opts {
+		opt = &opts[i]
 	}
 	if opt == nil {
 		return