add leading / to Radix::Tree

[stakach]

Radix doesn’t find some paths otherwise

For example - running the following code in crystal play

require "radix"

tree = Radix::Tree(Symbol).new
tree.add "GET/params/:id", :get_params
tree.add "GET/params/:id/test/:test_id", :get_test
tree.add "POST/post_test", :post_test
tree.add "PUT/put_test", :put_test
tree.add "GET/", :index

result = tree.find "PUT/put_test"

if result.found?
  puts result.payload
else
  puts "error!"  # => error!
end

however this code works

require "radix"

tree = Radix::Tree(Symbol).new
tree.add "/GET/params/:id", :get_params
tree.add "/GET/params/:id/test/:test_id", :get_test
tree.add "/POST/post_test", :post_test
tree.add "/PUT/put_test", :put_test
tree.add "/GET/", :index

result = tree.find "/PUT/put_test"

if result.found?
  puts result.payload  # => put_test
else
  puts "error!"
end

[stakach]

Came across this issue writing a cool extension for this project: https://github.com/aca-labs/hyperloop/tree/master/action-controller

It's a macro DSL for generating router.cr code that looks a lot like a Rails controller however obviously way way faster :)

[tbrand]

Awesome!! 🎉

[tbrand]

https://github.com/tbrand/router.cr/releases/tag/v0.2.1