Attempt to allow pasting multiple lines with leading dots (#2060)

Two tests are breaking, and I kind of understand why, but I'm
not sure what to do about it. Figured I should commit and send
a PR in hopes of another brain being able to help me out :)

2 files changed, 10 insertions, 2 deletions

diff --git a/lib/pry/command.rb b/lib/pry/command.rb
index 99bde110..4e213f39 100644
--- a/lib/pry/command.rb
+++ b/lib/pry/command.rb
@@ -166,7 +166,7 @@ class Pry
         prefix = convert_to_regex(Pry.config.command_prefix)
         prefix = "(?:#{prefix})?" unless options[:use_prefix]
 
-        /^#{prefix}#{convert_to_regex(match)}(?!\S)/
+        /\A#{prefix}#{convert_to_regex(match)}(?!\S)/
       end
 
       def convert_to_regex(obj)
diff --git a/lib/pry/testable/pry_tester.rb b/lib/pry/testable/pry_tester.rb
index 55f0b558..2bd9b875 100644
--- a/lib/pry/testable/pry_tester.rb
+++ b/lib/pry/testable/pry_tester.rb
@@ -29,7 +29,15 @@ class Pry
             if @pry.process_command(str)
               last_command_result_or_output
             else
-              @pry.evaluate_ruby(str)
+              # Check if this is a multiline paste.
+              begin
+                complete_expr = Pry::Code.complete_expression?(str)
+              rescue SyntaxError => exception
+                @pry.output.puts(
+                  "SyntaxError: #{exception.message.sub(/.*syntax error, */m, '')}"
+                )
+              end
+              @pry.evaluate_ruby(str) if complete_expr
             end
         end