{lib,test}/cgi: Specify frozen_string_literal: true.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57652 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/cgi/cookie.rb

@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 require 'cgi/util'
 class CGI
   # Class representing an HTTP cookie.
@@ -143,7 +143,7 @@ class CGI
     # Convert the Cookie to its string representation.
     def to_s
       val = collect{|v| CGI.escape(v) }.join("&")
-      buf = "#{@name}=#{val}"
+      buf = "#{@name}=#{val}".dup
       buf << "; domain=#{@domain}" if @domain
       buf << "; path=#{@path}"     if @path
       buf << "; expires=#{CGI::rfc1123_date(@expires)}" if @expires

lib/cgi/core.rb

@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 #--
 # Methods for generating HTML, parsing CGI-related parameters, and
 # generating HTTP responses.
@@ -182,7 +182,7 @@ class CGI
   alias :header :http_header
 
   def _header_for_string(content_type) #:nodoc:
-    buf = ''
+    buf = ''.dup
     if nph?()
       buf << "#{$CGI_ENV['SERVER_PROTOCOL'] || 'HTTP/1.0'} 200 OK#{EOL}"
       buf << "Date: #{CGI.rfc1123_date(Time.now)}#{EOL}"
@@ -198,7 +198,7 @@ class CGI
   private :_header_for_string
 
   def _header_for_hash(options)  #:nodoc:
-    buf = ''
+    buf = ''.dup
     ## add charset to option['type']
     options['type'] ||= 'text/html'
     charset = options.delete('charset')
@@ -480,7 +480,7 @@ class CGI
       @files = {}
       boundary_rexp = /--#{Regexp.quote(boundary)}(#{EOL}|--)/
       boundary_size = "#{EOL}--#{boundary}#{EOL}".bytesize
-      buf = ''
+      buf = ''.dup
       bufsize = 10 * 1024
       max_count = MAX_MULTIPART_COUNT
       n = 0
@@ -535,12 +535,12 @@ class CGI
         body.rewind
         ## original filename
         /Content-Disposition:.* filename=(?:"(.*?)"|([^;\r\n]*))/i.match(head)
-        filename = $1 || $2 || ''
+        filename = $1 || $2 || ''.dup
         filename = CGI.unescape(filename) if unescape_filename?()
         body.instance_variable_set(:@original_filename, filename.taint)
         ## content type
         /Content-Type: (.*)/i.match(head)
-        (content_type = $1 || '').chomp!
+        (content_type = $1 || ''.dup).chomp!
         body.instance_variable_set(:@content_type, content_type.taint)
         ## query parameter name
         /Content-Disposition:.* name=(?:"(.*?)"|([^;\r\n]*))/i.match(head)
@@ -589,7 +589,7 @@ class CGI
       else
         begin
           require 'stringio'
-          body = StringIO.new("".force_encoding(Encoding::ASCII_8BIT))
+          body = StringIO.new("".b)
         rescue LoadError
           require 'tempfile'
           body = Tempfile.new('CGI', encoding: Encoding::ASCII_8BIT)
@@ -700,7 +700,7 @@ class CGI
         if value
           return value
         elsif defined? StringIO
-          StringIO.new("".force_encoding(Encoding::ASCII_8BIT))
+          StringIO.new("".b)
         else
           Tempfile.new("CGI",encoding: Encoding::ASCII_8BIT)
         end

lib/cgi/html.rb

@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 class CGI
   # Base module for HTML-generation mixins.
   #
@@ -26,7 +26,7 @@ class CGI
     #   - O EMPTY
     def nOE_element(element, attributes = {})
       attributes={attributes=>nil} if attributes.kind_of?(String)
-      s = "<#{element.upcase}"
+      s = "<#{element.upcase}".dup
       attributes.each do|name, value|
         next unless value
         s << " "
@@ -408,7 +408,7 @@ class CGI
       end
       pretty = attributes.delete("PRETTY")
       pretty = "  " if true == pretty
-      buf = ""
+      buf = "".dup
 
       if attributes.has_key?("DOCTYPE")
         if attributes["DOCTYPE"]

lib/cgi/session.rb

@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 #
 # cgi/session.rb - session support for cgi scripts
 #

lib/cgi/session/pstore.rb

@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 #
 # cgi/session/pstore.rb - persistent storage of marshalled session data
 #

lib/cgi/util.rb

@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 class CGI; module Util; end; extend Util; end
 module CGI::Util
   @@accept_charset="UTF-8" unless defined?(@@accept_charset)