lib/qlang/api.rb in qlang-0.0.27180000 vs lib/qlang/api.rb in qlang-0.0.27182000

@@ -4,53 +4,18 @@
 require 'qlang/api/func_api'
 require 'qlang/api/integral_api'
 
 module Qlang
   module Api
-    # TODO:
-    class ::String
-      def rm(str_or_rgx)
-        gsub(str_or_rgx, '')
-      end
-
-      def rm!(str_or_rgx)
-        gsub!(str_or_rgx, '')
-        self
-      end
-
-      def rms!(*str_or_rgxs)
-        str_or_rgxs.each do |str_or_rgx|
-          rm!(str_or_rgx)
-        end
-        self
-      end
-
-      def split_by_sp
-        split(/ +/)
-      end
-
-      # FIX:
-      def equalize!
-        rms!(/\A +/, / +\z/)
-        if self =~ /\A\(/ && self =~ /\)\z/
-          rms!(/\A\(/, /\)\z/)
-          rms!(/\A +/, / +\z/)
-        else
-          self
-        end
-      end
-    end
-
     class ::Matrix
       def to_q
-        q_rows = rows.map { |row| row.join(' ') }.join('; ')
-        "(#{q_rows})"
+        rows.map(&:join_by_sp).join('; ').parentheses
       end
     end
 
     class ::Vector
       def to_q
-        "(#{elements.join(' ')})"
+        elements.join_by_sp.parentheses
       end
     end
   end
 end