add form(s)_with method

src/mechanize/form.cr

@@ -9,6 +9,7 @@ require "./utils/element_matcher"
 class MechanizeCr::Form
   include MechanzeCr::ElementMatcher
 
+  getter node         : Node | Myhtml::Node
   getter fields       : Array(FormContent::Field)
   getter checkboxes   : Array(FormContent::CheckBox)
   getter radiobuttons : Array(FormContent::RadioButton)

src/mechanize/page.cr

@@ -1,6 +1,8 @@
 require "./file"
+require "./utils/element_matcher"
 
 class MechanizeCr::Page < MechanizeCr::File
+  include MechanzeCr::ElementMatcher
   delegate :css, to: parser
 
   def initialize(uri, response, body, code)
@@ -27,4 +29,9 @@ class MechanizeCr::Page < MechanizeCr::File
       form
     end.to_a
   end
+
+  # generate form_with, forms_with methods
+  # ex) form_with({:name => "login_form"})
+  # it detects form(s) which match conditions.
+  elements_with "form"
 end

src/mechanize/utils/element_matcher.cr

@@ -10,9 +10,9 @@ module MechanzeCr::ElementMatcher
       if criteria.is_a?(String)
         criteria = {"name" => criteria}
       else
-        # now,
         criteria = criteria.each_with_object(Hash(String,String).new) do |(k, v), h|
           h[k] = v
+          # TODO: to deal with when key is "text"
           #case k = k.to_s
           #when "id"
           #  h["id"] = v
@@ -25,7 +25,7 @@ module MechanzeCr::ElementMatcher
       end
       f = {{plural.id}}.select do |elm|
         criteria.all? do |k,v|
-          v === elm.node.fetch(k,"x")
+          v === elm.node.fetch(k,"")
         end
       end
       yield f