Rename pattern to regex

regression/regression_test.go

@@ -10,7 +10,7 @@ import (
 
 func ApiAdaptor(content string, regex string, lua string) (string, int, int, error) {
 	command := utils.ModifyCommand{
-		Pattern:  regex,
+		Regex:    regex,
 		Lua:      lua,
 		LogLevel: "TRACE",
 	}