There is a new Gherkin parser, which has support for Rules, and will replace the current Gherkin parser. It is possible to use this new parser today, with an experimental flag.
If you are running Behavior from the command line, add a flag like this, to try this new parser
$ julia cmd/runspec.jl --experimental
$ julia cmd/suggeststeps.jl features/Some.feature features/steps --experimental
$ julia cmd/parseonly.jl features/ --experimental
If you are running Behavior from the
runtests.jl script, instead create a
ParseOptions struct, like
parseoptions = ParseOptions(use_experimental=true)
The new parser is on par with the current parser in
Behavior.Gherkin, and has additional support for
Rules. Aside from the flag describe above, the changes are entirely transparent to the user of Behavior.
The general idea is that the experimental parser will undergo a period of testing to ensure that no major problems are present, and then it will replace the current parser in a new release.
While the parser is mostly on par with the current one, there are still some missing parts, like support for steps
*. With the new parser, they are fortunately trivial to add.