lib/revector.rb in revector-0.1.0 vs lib/revector.rb in revector-0.1.1

@@ -1,13 +1,14 @@
 # frozen_string_literal: true
 
 require 'set'
 
 require_relative 'revector/utility'
+require_relative 'revector/predicate/equal'
+require_relative 'revector/predicate/exists'
 require_relative 'revector/predicate/startify'
 require_relative 'revector/predicate/endify'
-require_relative 'revector/predicate/equal'
 require_relative 'revector/predicate/contains'
 require_relative 'revector/predicate/in'
 require_relative 'revector/predicate/less_than'
 require_relative 'revector/predicate/greater_than'
 
@@ -52,10 +53,11 @@
       predicatable = Predicate[predicate]
       valueable = value.respond_to?(:call) ? value.call : value
 
       case right
       in [*]
+        right = [''] unless right.any?
         Array(right).any? { |o| predicatable.compare(o, valueable) }
       else
         predicatable.compare(right, valueable)
       end
     end
@@ -65,11 +67,11 @@
     parts = key.to_s.split('_')
 
     predicate = Array(parts[-2..]).filter do |pkey|
       next unless PREDICATES.include? pkey
 
-      parts = parts - [pkey]
+      parts -= [pkey]
 
       pkey
     end&.last || :eq
 
     iteratee = parts.join('_')
@@ -101,24 +103,28 @@
       end: Endify,
       notend: NotEndify,
       not_end: NotEndify,
       in: Included,
       notin: NotIncluded,
-      not_in: NotIncluded
+      not_in: NotIncluded,
+      ex: Exists,
+      not_ex: NotExists
     }[named.to_sym || :eq]
   end
   private_constant :Predicate
 
   AFFIRMATIVES = %w[
-    eq
+    eq ex
     in cont
     lt lteq
     gt gteq
-    st start end
+    st start
+    end
   ].freeze
 
   NEGATIVES = %w[
     noteq not_eq
+    not_ex
     notcont not_cont
     notstart notst not_start not_st
     notend not_end
     notin not_in
   ].freeze