"named prefix" should be enforced as a prefix, or should work in the middle of a path

[Dr-Emann]

Example code:

local Router = require "radix-router"
local router, err = Router.new({
  {
    paths = { "/Accounts/{*middle}/Messages.json" },
    handler = "1"
  }
})
if not router then
  error("failed to create router: " .. err)
end

assert(nil == router:match("/Accounts/", { method = "POST" }))
assert("1" == router:match("/Accounts/abc/123/Messages.json", { method = "POST" }))

This will error on any attempt to match against paths under /Accounts/

Expected Behavior

I expected either:

1. Both matches run without erroring, and asserts succeed
2. The router fails to create because the path pattern was invalid

Actual Behavior

Errors in router:match with

radix-router.lua:129: attempt to index local 'routes' (a nil value)
radix-router.lua:197: in function 'match'

[vm-001]

The pattern /Accounts/{*middle}/Messages.json is invalid as {*} is a prefix pattern and should be put at the end of path. For example, /Accounts/{*middle}.

[vm-001]

A PR added the validation for prefix pattern #54

[vm-001]

@Dr-Emann Fixed. Try the new release 0.6.2 : )