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context	[ DIR ]	drwxr-xr-x
generator	[ DIR ]	drwxr-xr-x
i18n	[ DIR ]	drwxr-xr-x
markdown	[ DIR ]	drwxr-xr-x
markup	[ DIR ]	drwxr-xr-x
parser	[ DIR ]	drwxr-xr-x
rd	[ DIR ]	drwxr-xr-x
ri	[ DIR ]	drwxr-xr-x
stats	[ DIR ]	drwxr-xr-x
alias.rb	2.12 KB	-rw-r--r--
anon_class.rb	172 B	-rw-r--r--
any_method.rb	8.18 KB	-rw-r--r--
attr.rb	3.76 KB	-rw-r--r--
class_module.rb	19.82 KB	-rw-r--r--
code_object.rb	9.26 KB	-rw-r--r--
code_objects.rb	151 B	-rw-r--r--
comment.rb	5.74 KB	-rw-r--r--
constant.rb	3.59 KB	-rw-r--r--
context.rb	30.27 KB	-rw-r--r--
cross_reference.rb	6.62 KB	-rw-r--r--
encoding.rb	3.75 KB	-rw-r--r--
erb_partial.rb	401 B	-rw-r--r--
erbio.rb	1.01 KB	-rw-r--r--
extend.rb	170 B	-rw-r--r--
generator.rb	1.79 KB	-rw-r--r--
ghost_method.rb	144 B	-rw-r--r--
i18n.rb	174 B	-rw-r--r--
include.rb	172 B	-rw-r--r--
known_classes.rb	2.62 KB	-rw-r--r--
markdown.rb	386.29 KB	-rw-r--r--
markup.rb	28.13 KB	-rw-r--r--
meta_method.rb	129 B	-rw-r--r--
method_attr.rb	9.03 KB	-rw-r--r--
mixin.rb	2.75 KB	-rw-r--r--
normal_class.rb	2.13 KB	-rw-r--r--
normal_module.rb	1.43 KB	-rw-r--r--
options.rb	33.29 KB	-rw-r--r--
parser.rb	7.07 KB	-rw-r--r--
rd.rb	3.57 KB	-rw-r--r--
rdoc.rb	13.29 KB	-rw-r--r--
require.rb	965 B	-rw-r--r--
ri.rb	345 B	-rw-r--r--
rubygems_hook.rb	5.2 KB	-rw-r--r--
servlet.rb	12.23 KB	-rw-r--r--
single_class.rb	408 B	-rw-r--r--
stats.rb	10.48 KB	-rw-r--r--
store.rb	22.67 KB	-rw-r--r--
task.rb	7.67 KB	-rw-r--r--
text.rb	7.63 KB	-rw-r--r--
token_stream.rb	3.16 KB	-rw-r--r--
tom_doc.rb	6.46 KB	-rw-r--r--
top_level.rb	5.54 KB	-rw-r--r--
version.rb	77 B	-rw-r--r--

Code Editor : encoding.rb

# coding: US-ASCII
# frozen_string_literal: true

##
# This class is a wrapper around File IO and Encoding that helps RDoc load
# files and convert them to the correct encoding.

module RDoc::Encoding

HEADER_REGEXP = /^
    (?:
      \A\#!.*\n
      |
      ^\#\s+frozen[-_]string[-_]literal[=:].+\n
      |
      ^\#[^\n]+\b(?:en)?coding[=:]\s*(?<name>[^\s;]+).*\n
      |
      <\?xml[^?]*encoding=(?<quote>["'])(?<name>.*?)\k<quote>.*\n
    )+
  /xi # :nodoc:

##
  # Reads the contents of +filename+ and handles any encoding directives in
  # the file.
  #
  # The content will be converted to the +encoding+.  If the file cannot be
  # converted a warning will be printed and nil will be returned.
  #
  # If +force_transcode+ is true the document will be transcoded and any
  # unknown character in the target encoding will be replaced with '?'

def self.read_file filename, encoding, force_transcode = false
    content = File.open filename, "rb" do |f| f.read end
    content.gsub!("\r\n", "\n") if RUBY_PLATFORM =~ /mswin|mingw/

utf8 = content.sub!(/\A\xef\xbb\xbf/, '')

enc = RDoc::Encoding.detect_encoding content
    content = RDoc::Encoding.change_encoding content, enc if enc

begin
      encoding ||= Encoding.default_external
      orig_encoding = content.encoding

if not orig_encoding.ascii_compatible? then
        content = content.encode encoding
      elsif utf8 then
        content = RDoc::Encoding.change_encoding content, Encoding::UTF_8
        content = content.encode encoding
      else
        # assume the content is in our output encoding
        content = RDoc::Encoding.change_encoding content, encoding
      end

unless content.valid_encoding? then
        # revert and try to transcode
        content = RDoc::Encoding.change_encoding content, orig_encoding
        content = content.encode encoding
      end

unless content.valid_encoding? then
        warn "unable to convert #{filename} to #{encoding}, skipping"
        content = nil
      end
    rescue Encoding::InvalidByteSequenceError,
           Encoding::UndefinedConversionError => e
      if force_transcode then
        content = RDoc::Encoding.change_encoding content, orig_encoding
        content = content.encode(encoding,
                                 :invalid => :replace,
                                 :undef => :replace,
                                 :replace => '?')
        return content
      else
        warn "unable to convert #{e.message} for #{filename}, skipping"
        return nil
      end
    end

content
  rescue ArgumentError => e
    raise unless e.message =~ /unknown encoding name - (.*)/
    warn "unknown encoding name \"#{$1}\" for #{filename}, skipping"
    nil
  rescue Errno::EISDIR, Errno::ENOENT
    nil
  end

def self.remove_frozen_string_literal string
    string =~ /\A(?:#!.*\n)?(.*\n)/
    first_line = $1

if first_line =~ /\A# +frozen[-_]string[-_]literal[=:].+$/i
      string = string.sub first_line, ''
    end

string
  end

##
  # Detects the encoding of +string+ based on the magic comment

def self.detect_encoding string
    result = HEADER_REGEXP.match string
    name = result && result[:name]

name ? Encoding.find(name) : nil
  end

##
  # Removes magic comments and shebang

def self.remove_magic_comment string
    string.sub HEADER_REGEXP do |s|
      s.gsub(/[^\n]/, '')
    end
  end

##
  # Changes encoding based on +encoding+ without converting and returns new
  # string

def self.change_encoding text, encoding
    if text.kind_of? RDoc::Comment
      text.encode! encoding
    else
      # TODO: Remove this condition after Ruby 2.2 EOL
      if RUBY_VERSION < '2.3.0'
        text.force_encoding encoding
      else
        String.new text, encoding: encoding
      end
    end
  end

end

${this.title}

Code Editor : encoding.rb