Replace trivial regexp with string or index, twice as fast

4 files changed, 4 insertions, 4 deletions

diff --git a/actionpack/lib/action_controller/metal/http_authentication.rb b/actionpack/lib/action_controller/metal/http_authentication.rb
index 1acc19d74b..2eb7853aa6 100644
--- a/actionpack/lib/action_controller/metal/http_authentication.rb
+++ b/actionpack/lib/action_controller/metal/http_authentication.rb
@@ -96,7 +96,7 @@ module ActionController
       end
 
       def user_name_and_password(request)
-        decode_credentials(request).split(/:/, 2)
+        decode_credentials(request).split(':', 2)
       end
 
       def decode_credentials(request)
diff --git a/actionpack/lib/action_dispatch/http/mime_type.rb b/actionpack/lib/action_dispatch/http/mime_type.rb
index 3d2dd2d632..9450be838c 100644
--- a/actionpack/lib/action_dispatch/http/mime_type.rb
+++ b/actionpack/lib/action_dispatch/http/mime_type.rb
@@ -174,7 +174,7 @@ module Mime
       end
 
       def parse(accept_header)
-        if accept_header !~ /,/
+        if !accept_header.include?(',')
           accept_header = accept_header.split(PARAMETER_SEPARATOR_REGEXP).first
           parse_trailing_star(accept_header) || [Mime::Type.lookup(accept_header)].compact
         else
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
index e0516c0773..da25e640c1 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
@@ -318,7 +318,7 @@ module ActiveRecord
       def sanitize_limit(limit)
         if limit.is_a?(Integer) || limit.is_a?(Arel::Nodes::SqlLiteral)
           limit
-        elsif limit.to_s =~ /,/
+        elsif limit.to_s.include?(',')
           Arel.sql limit.to_s.split(',').map{ |i| Integer(i) }.join(',')
         else
           Integer(limit)
diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake
index ff1f0f5911..6b0459ea37 100644
--- a/activerecord/lib/active_record/railties/databases.rake
+++ b/activerecord/lib/active_record/railties/databases.rake
@@ -186,7 +186,7 @@ db_namespace = namespace :db do
 
       fixtures_dir = File.join [base_dir, ENV['FIXTURES_DIR']].compact
 
-      (ENV['FIXTURES'] ? ENV['FIXTURES'].split(/,/) : Dir["#{fixtures_dir}/**/*.yml"].map {|f| f[(fixtures_dir.size + 1)..-5] }).each do |fixture_file|
+      (ENV['FIXTURES'] ? ENV['FIXTURES'].split(',') : Dir["#{fixtures_dir}/**/*.yml"].map {|f| f[(fixtures_dir.size + 1)..-5] }).each do |fixture_file|
         ActiveRecord::FixtureSet.create_fixtures(fixtures_dir, fixture_file)
       end
     end