class ActionDispatch::Journey::Router::Utils

def self.normalize_path(path)

normalize_path("/%ab") # => "/%AB"
normalize_path("") # => "/"
normalize_path("foo") # => "/foo"
normalize_path("/foo/") # => "/foo"
normalize_path("/foo") # => "/foo"

Also converts downcase url encoded string to uppercase.
Strips off trailing slash and ensures there is a leading slash.

Normalizes URI path.
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def self.normalize_path(path)
  path = "/#{path}"
  path.squeeze!('/'.freeze)
  path.sub!(%r{/+\Z}, ''.freeze)
  path.gsub!(/(%[a-f0-9]{2})/) { $1.upcase }
  path = '/' if path == ''.freeze
  path
end