Add bin and edit workflow

bin/gems/pdf-reader-2.14.1/lib/pdf/reader/register_receiver.rb

@@ -0,0 +1,82 @@
+# coding: utf-8
+# typed: strict
+# frozen_string_literal: true
+
+# Copyright (C) 2010 James Healy (jimmy@deefa.com)
+
+class PDF::Reader
+
+  # An example receiver that just records all callbacks generated by parsing
+  # a PDF file.
+  #
+  # Useful for testing the contents of a file in an rspec/test-unit suite.
+  #
+  # Usage:
+  #
+  #     PDF::Reader.open("somefile.pdf") do |reader|
+  #       receiver = PDF::Reader::RegisterReceiver.new
+  #       reader.page(1).walk(receiver)
+  #       callback = receiver.first_occurance_of(:show_text)
+  #       callback[:args].first.should == "Hellow World"
+  #     end
+  #
+  class RegisterReceiver
+
+    attr_accessor :callbacks
+
+    def initialize
+      @callbacks = []
+    end
+
+    def respond_to?(meth)
+      true
+    end
+
+    def method_missing(methodname, *args)
+      callbacks << {:name => methodname.to_sym, :args => args}
+    end
+
+    # count the number of times a callback fired
+    def count(methodname)
+      callbacks.count { |cb| cb[:name] == methodname}
+    end
+
+    # return the details for every time the specified callback was fired
+    def all(methodname)
+      callbacks.select { |cb| cb[:name] == methodname }
+    end
+
+    def all_args(methodname)
+      all(methodname).map { |cb| cb[:args] }
+    end
+
+    # return the details for the first time the specified callback was fired
+    def first_occurance_of(methodname)
+      callbacks.find { |cb| cb[:name] == methodname }
+    end
+
+    # return the details for the final time the specified callback was fired
+    def final_occurance_of(methodname)
+      all(methodname).last
+    end
+
+    # return the first occurance of a particular series of callbacks
+    def series(*methods)
+      return nil if methods.empty?
+
+      indexes = (0..(callbacks.size-1))
+      method_indexes = (0..(methods.size-1))
+
+      indexes.each do |idx|
+        count = methods.size
+        method_indexes.each do |midx|
+          count -= 1 if callbacks[idx+midx] && callbacks[idx+midx][:name] == methods[midx]
+        end
+        if count == 0
+          return callbacks[idx, methods.size]
+        end
+      end
+      nil
+    end
+  end
+end