Make it work with Ruby 3

.travis.yml

@@ -1,4 +1,4 @@
 language: ruby
 rvm:
-  - 1.9.3
   - 2.0.0
+  - 3.0.0

lib/collmex/api.rb

@@ -20,7 +20,7 @@ def self.line_class_exists?(class_name)
   # from Collmex::Api::Line
   def self.parse_line(line)
     # in case the line is already an array
-    if line.is_a?(Array) && line.first.is_a?(String) || line.is_a?(String) && line = CSV.parse_line(line, Collmex.csv_opts)
+    if line.is_a?(Array) && line.first.is_a?(String) || line.is_a?(String) && line = CSV.parse_line(line, **Collmex.csv_opts)
       identifyer = line.first.split(/_|-/).map { |s| s.downcase.capitalize }.join
       if self.line_class_exists?(identifyer)
         Collmex::Api.const_get(identifyer).new(line)
@@ -59,7 +59,7 @@ def self.parse_currency(str)
     end
   end
 
-  # given an object, convert it to a string according to the collmex api. 
+  # given an object, convert it to a string according to the collmex api.
   def self.stringify(data, type)
     return "" if data.nil?
     case type
@@ -95,4 +95,3 @@ def self.stringify_currency(data)
 require "collmex/api/sales_order_get"
 require "collmex/api/accbal_get"
 require "collmex/api/accbal"
-

lib/collmex/api/line.rb

@@ -26,13 +26,13 @@ def self.hashify(data)
     hash = self.default_hash
     fields_spec = self.specification
 
-    if data.is_a?(Array) || data.is_a?(String) && data = CSV.parse_line(data,Collmex.csv_opts)
+    if data.is_a?(Array) || data.is_a?(String) && data = CSV.parse_line(data, **Collmex.csv_opts)
       fields_spec.each_with_index do |field_spec, index|
         if !data[index].nil? && !field_spec.has_key?(:fix)
           hash[field_spec[:name]] = Collmex::Api.parse_field(data[index], field_spec[:type])
         end
       end
-    elsif data.is_a? Hash 
+    elsif data.is_a? Hash
       fields_spec.each_with_index do |field_spec, index|
         if data.key?(field_spec[:name]) && !field_spec.has_key?(:fix)
           hash[field_spec[:name]] = Collmex::Api.parse_field(data[field_spec[:name]], field_spec[:type])
@@ -70,7 +70,7 @@ def to_stringified_array
 
 
   def to_csv
-    CSV.generate_line(self.to_stringified_array, Collmex.csv_opts)
+    CSV.generate_line(self.to_stringified_array, **Collmex.csv_opts)
   end
 
   def to_h
@@ -79,4 +79,3 @@ def to_h
 
 
 end
-

lib/collmex/request.rb

@@ -82,7 +82,7 @@ def execute
       @raw_response[:string] = response.body.encode("UTF-8")
 
       begin
-        @raw_response[:array]  = CSV.parse(@raw_response[:string], Collmex.csv_opts)
+        @raw_response[:array]  = CSV.parse(@raw_response[:string], **Collmex.csv_opts)
       rescue => e
         STDERR.puts "CSV.parse failed with string: #{@raw_response[:string]}" if self.debug
         raise e