Percent-encode square brackets in :url_encoded part of the result

CHANGELOG.md

@@ -1,6 +1,6 @@
-0.1.6:
+0.1.7:
 
-* square brackets are also special strings, because of HTTParty;
+* percent-encode square brackets in :url_encoded part of the result, because of HTTParty;
 
 0.1.5:
 

lib/linkhum/url.rb

@@ -65,7 +65,7 @@ def self.generate_url(parts)
     end
 
     def self.encode_component(string, skip_percent_sign = true)
-      chars_to_keep_unencoded = Addressable::URI::CharacterClasses::RESERVED + Addressable::URI::CharacterClasses::UNRESERVED
+      chars_to_keep_unencoded = "\\:\\/\\?\\#\\@\\!\\$\\&\\'\\(\\)\\*\\+\\,\\;\\=" + Addressable::URI::CharacterClasses::UNRESERVED
       chars_to_keep_unencoded << '\\%' if skip_percent_sign
       Addressable::URI.encode_component(string, chars_to_keep_unencoded)
     end

linkhum-url.gemspec

@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name        = 'linkhum-url'
-  s.version     = '0.1.6'
+  s.version     = '0.1.7'
   s.date        = '2017-10-17'
   s.summary     = "Linkhum-URL creates both URL-encoded and readable versions of URLs"
   s.description = "Input URL could be either human-readable, or URL-encoded.  Two URLs are returned as result: human-readable and URL-encoded."

spec/linkhum-url.spec

@@ -56,6 +56,12 @@ describe Linkhum::URL do
     expect(lu[:url_encoded]).to eql("https://example.org/search.html?q=%D0%BF%D0%B8%D0%B2%D0%B1%D0%B0%D1%80")
   end
 
+  it "percent-encodes square brackets in paths" do
+    lu = Linkhum::URL.parse("http://www.example.com/image[2].jpg")
+    expect(lu[:human_readable]).to eql("http://www.example.com/image[2].jpg")
+    expect(lu[:url_encoded]).to eql("http://www.example.com/image%5B2%5D.jpg")
+  end
+
   it "handles non-ASCII fragments" do
     lu = Linkhum::URL.parse("https://example.org/venues.html#пивбар")
     expect(lu[:human_readable]).to eql("https://example.org/venues.html#пивбар")