We consider an approach to creating a family of lightweight grammars with the Any symbol denoting skipping code parts [1]. Definition and examples of increasing the granularity of grammar rules are given. Memory and time efficiency of lightweight parsers is analyzed on seven industrial repositories. It is shown that increasing grammar granularity does not significantly increase parser resource consumption and varies slightly depending on repository type and Go writing style. Furthermore, the advantages of using lightweight grammars with Any over full grammars are summarized. An example of using a lightweight grammar to determine code complexity is presented. In addition, the results can be applied to estimate the parser's share of the total resource consumption, for example in the task of code binding and project markup.