Fix problem with using prefix name somewhere in api paths

[grzesiek]

Hi.

I've encountered problem with generating documentation when I used prefix string somewhere is API path.
For example, you can use prefix :api and use

get :apitest do
  "test api"
end

Generated path for this, is, for example, /api/something/apitest.

The problem is when in

route_match = route.route_path.split(route.route_prefix).last.match('\/([\w|-]*?)[\.\/\(]')

route_path is spitted incorrectly because second "api" is also matched.

My solutions changes this code to match only first route_prefix occurrence (greedy RegExp). This is quick solution, and probably needs deeper investigation. It also fixes problem with

grape-swagger-0.8.0/lib/grape-swagger.rb:20:in `split': wrong argument type Symbol (expected Regexp) (TypeError)

what happens when prefix is a Symbol.

Kind regards,
Grzegorz

[dblock]

This needs a spec and a CHANGELOG entry to be merged, please. Also squash the commits.

[grzesiek]

@dblock Added specs, updated changelog, squashed commits

[grzesiek]

This also fixes https://github.com/tim-vandecasteele/grape-swagger/pull/155

[dblock]

Thanks, 👍

[swistaczek]

Good work @grzesiek 👍

[SleeplessByte]

👍