Revert "IRB is improved with Reline and RDoc"

This reverts commit 7f273ac6d0f05208b5b228da95205e20c0e8286c.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67691 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 0 insertions, 415 deletions

diff --git a/lib/reline/unicode.rb b/lib/reline/unicode.rb
deleted file mode 100644
index bdb182f59c..0000000000
--- a/lib/reline/unicode.rb
+++ /dev/null
@@ -1,415 +0,0 @@
-class Reline::Unicode
-  EscapedPairs = {
-    0x00 => '^@',
-    0x01 => '^A', # C-a
-    0x02 => '^B',
-    0x03 => '^C',
-    0x04 => '^D',
-    0x05 => '^E',
-    0x06 => '^F',
-    0x07 => '^G',
-    0x08 => '^H', # Backspace
-    0x09 => '^I',
-    0x0A => '^J',
-    0x0B => '^K',
-    0x0C => '^L',
-    0x0D => '^M', # Enter
-    0x0E => '^N',
-    0x0F => '^O',
-    0x10 => '^P',
-    0x11 => '^Q',
-    0x12 => '^R',
-    0x13 => '^S',
-    0x14 => '^T',
-    0x15 => '^U',
-    0x16 => '^V',
-    0x17 => '^W',
-    0x18 => '^X',
-    0x19 => '^Y',
-    0x1A => '^Z', # C-z
-    0x1B => '^[', # C-[ C-3
-    0x1D => '^]', # C-]
-    0x1E => '^^', # C-~ C-6
-    0x1F => '^_', # C-_ C-7
-    0x7F => '^?', # C-? C-8
-  }
-  EscapedChars = EscapedPairs.keys.map(&:chr)
-
-  def self.get_mbchar_byte_size_by_first_char(c)
-    # Checks UTF-8 character byte size
-    case c.ord
-    # 0b0xxxxxxx
-    when ->(code) { (code ^ 0b10000000).allbits?(0b10000000) } then 1
-    # 0b110xxxxx
-    when ->(code) { (code ^ 0b00100000).allbits?(0b11100000) } then 2
-    # 0b1110xxxx
-    when ->(code) { (code ^ 0b00010000).allbits?(0b11110000) } then 3
-    # 0b11110xxx
-    when ->(code) { (code ^ 0b00001000).allbits?(0b11111000) } then 4
-    # 0b111110xx
-    when ->(code) { (code ^ 0b00000100).allbits?(0b11111100) } then 5
-    # 0b1111110x
-    when ->(code) { (code ^ 0b00000010).allbits?(0b11111110) } then 6
-    # successor of mbchar
-    else 0
-    end
-  end
-
-  def self.get_mbchar_width(mbchar)
-    case mbchar.encode(Encoding::UTF_8)
-    when *EscapedChars # ^ + char, such as ^M, ^H, ^[, ...
-      2
-    when /^\u{2E3B}/ # THREE-EM DASH
-      3
-    when /^\p{M}/
-      0
-    when EastAsianWidth::TYPE_A
-      Reline.ambiguous_width
-    when EastAsianWidth::TYPE_F, EastAsianWidth::TYPE_W
-      2
-    when EastAsianWidth::TYPE_H, EastAsianWidth::TYPE_NA, EastAsianWidth::TYPE_N
-      1
-    else
-      nil
-    end
-  end
-
-  def self.get_next_mbchar_size(line, byte_pointer)
-    grapheme = line.byteslice(byte_pointer..-1).grapheme_clusters.first
-    grapheme ? grapheme.bytesize : 0
-  end
-
-  def self.get_prev_mbchar_size(line, byte_pointer)
-    if byte_pointer.zero?
-      0
-    else
-      grapheme = line.byteslice(0..(byte_pointer - 1)).grapheme_clusters.last
-      grapheme ? grapheme.bytesize : 0
-    end
-  end
-
-  def self.em_forward_word(line, byte_pointer)
-    width = 0
-    byte_size = 0
-    while line.bytesize > (byte_pointer + byte_size)
-      size = get_next_mbchar_size(line, byte_pointer + byte_size)
-      mbchar = line.byteslice(byte_pointer + byte_size, size)
-      break if mbchar.encode(Encoding::UTF_8) =~ /\p{Word}/
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    while line.bytesize > (byte_pointer + byte_size)
-      size = get_next_mbchar_size(line, byte_pointer + byte_size)
-      mbchar = line.byteslice(byte_pointer + byte_size, size)
-      break if mbchar.encode(Encoding::UTF_8) =~ /\P{Word}/
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    [byte_size, width]
-  end
-
-  def self.em_forward_word_with_capitalization(line, byte_pointer)
-    width = 0
-    byte_size = 0
-    new_str = String.new
-    while line.bytesize > (byte_pointer + byte_size)
-      size = get_next_mbchar_size(line, byte_pointer + byte_size)
-      mbchar = line.byteslice(byte_pointer + byte_size, size)
-      break if mbchar.encode(Encoding::UTF_8) =~ /\p{Word}/
-      new_str += mbchar
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    first = true
-    while line.bytesize > (byte_pointer + byte_size)
-      size = get_next_mbchar_size(line, byte_pointer + byte_size)
-      mbchar = line.byteslice(byte_pointer + byte_size, size)
-      break if mbchar.encode(Encoding::UTF_8) =~ /\P{Word}/
-      if first
-        new_str += mbchar.upcase
-        first = false
-      else
-        new_str += mbchar.downcase
-      end
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    [byte_size, width, new_str]
-  end
-
-  def self.em_backward_word(line, byte_pointer)
-    width = 0
-    byte_size = 0
-    while 0 < (byte_pointer - byte_size)
-      size = get_prev_mbchar_size(line, byte_pointer - byte_size)
-      mbchar = line.byteslice(byte_pointer - byte_size - size, size)
-      break if mbchar.encode(Encoding::UTF_8) =~ /\p{Word}/
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    while 0 < (byte_pointer - byte_size)
-      size = get_prev_mbchar_size(line, byte_pointer - byte_size)
-      mbchar = line.byteslice(byte_pointer - byte_size - size, size)
-      break if mbchar.encode(Encoding::UTF_8) =~ /\P{Word}/
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    [byte_size, width]
-  end
-
-  def self.em_big_backward_word(line, byte_pointer)
-    width = 0
-    byte_size = 0
-    while 0 < (byte_pointer - byte_size)
-      size = get_prev_mbchar_size(line, byte_pointer - byte_size)
-      mbchar = line.byteslice(byte_pointer - byte_size - size, size)
-      break if mbchar =~ /\S/
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    while 0 < (byte_pointer - byte_size)
-      size = get_prev_mbchar_size(line, byte_pointer - byte_size)
-      mbchar = line.byteslice(byte_pointer - byte_size - size, size)
-      break if mbchar =~ /\s/
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    [byte_size, width]
-  end
-
-  def self.vi_big_forward_word(line, byte_pointer)
-    width = 0
-    byte_size = 0
-    while (line.bytesize - 1) > (byte_pointer + byte_size)
-      size = get_next_mbchar_size(line, byte_pointer + byte_size)
-      mbchar = line.byteslice(byte_pointer + byte_size, size)
-      break if mbchar =~ /\s/
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    while (line.bytesize - 1) > (byte_pointer + byte_size)
-      size = get_next_mbchar_size(line, byte_pointer + byte_size)
-      mbchar = line.byteslice(byte_pointer + byte_size, size)
-      break if mbchar =~ /\S/
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    [byte_size, width]
-  end
-
-  def self.vi_big_forward_end_word(line, byte_pointer)
-    if (line.bytesize - 1) > byte_pointer
-      size = get_next_mbchar_size(line, byte_pointer)
-      mbchar = line.byteslice(byte_pointer, size)
-      width = get_mbchar_width(mbchar)
-      byte_size = size
-    else
-      return [0, 0]
-    end
-    while (line.bytesize - 1) > (byte_pointer + byte_size)
-      size = get_next_mbchar_size(line, byte_pointer + byte_size)
-      mbchar = line.byteslice(byte_pointer + byte_size, size)
-      break if mbchar =~ /\S/
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    prev_width = width
-    prev_byte_size = byte_size
-    while line.bytesize > (byte_pointer + byte_size)
-      size = get_next_mbchar_size(line, byte_pointer + byte_size)
-      mbchar = line.byteslice(byte_pointer + byte_size, size)
-      break if mbchar =~ /\s/
-      prev_width = width
-      prev_byte_size = byte_size
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    [prev_byte_size, prev_width]
-  end
-
-  def self.vi_big_backward_word(line, byte_pointer)
-    width = 0
-    byte_size = 0
-    while 0 < (byte_pointer - byte_size)
-      size = get_prev_mbchar_size(line, byte_pointer - byte_size)
-      mbchar = line.byteslice(byte_pointer - byte_size - size, size)
-      break if mbchar =~ /\S/
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    while 0 < (byte_pointer - byte_size)
-      size = get_prev_mbchar_size(line, byte_pointer - byte_size)
-      mbchar = line.byteslice(byte_pointer - byte_size - size, size)
-      break if mbchar =~ /\s/
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    [byte_size, width]
-  end
-
-  def self.vi_forward_word(line, byte_pointer)
-    if (line.bytesize - 1) > byte_pointer
-      size = get_next_mbchar_size(line, byte_pointer)
-      mbchar = line.byteslice(byte_pointer, size)
-      if mbchar =~ /\w/
-        started_by = :word
-      elsif mbchar =~ /\s/
-        started_by = :space
-      else
-        started_by = :non_word_printable
-      end
-      width = get_mbchar_width(mbchar)
-      byte_size = size
-    else
-      return [0, 0]
-    end
-    while (line.bytesize - 1) > (byte_pointer + byte_size)
-      size = get_next_mbchar_size(line, byte_pointer + byte_size)
-      mbchar = line.byteslice(byte_pointer + byte_size, size)
-      case started_by
-      when :word
-        break if mbchar =~ /\W/
-      when :space
-        break if mbchar =~ /\S/
-      when :non_word_printable
-        break if mbchar =~ /\w|\s/
-      end
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    while (line.bytesize - 1) > (byte_pointer + byte_size)
-      size = get_next_mbchar_size(line, byte_pointer + byte_size)
-      mbchar = line.byteslice(byte_pointer + byte_size, size)
-      break if mbchar =~ /\S/
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    [byte_size, width]
-  end
-
-  def self.vi_forward_end_word(line, byte_pointer)
-    if (line.bytesize - 1) > byte_pointer
-      size = get_next_mbchar_size(line, byte_pointer)
-      mbchar = line.byteslice(byte_pointer, size)
-      if mbchar =~ /\w/
-        started_by = :word
-      elsif mbchar =~ /\s/
-        started_by = :space
-      else
-        started_by = :non_word_printable
-      end
-      width = get_mbchar_width(mbchar)
-      byte_size = size
-    else
-      return [0, 0]
-    end
-    if (line.bytesize - 1) > (byte_pointer + byte_size)
-      size = get_next_mbchar_size(line, byte_pointer + byte_size)
-      mbchar = line.byteslice(byte_pointer + byte_size, size)
-      if mbchar =~ /\w/
-        second = :word
-      elsif mbchar =~ /\s/
-        second = :space
-      else
-        second = :non_word_printable
-      end
-      second_width = get_mbchar_width(mbchar)
-      second_byte_size = size
-    else
-      return [byte_size, width]
-    end
-    if second == :space
-      width += second_width
-      byte_size += second_byte_size
-      while (line.bytesize - 1) > (byte_pointer + byte_size)
-        size = get_next_mbchar_size(line, byte_pointer + byte_size)
-        mbchar = line.byteslice(byte_pointer + byte_size, size)
-        if mbchar =~ /\S/
-          if mbchar =~ /\w/
-            started_by = :word
-          else
-            started_by = :non_word_printable
-          end
-          break
-        end
-        width += get_mbchar_width(mbchar)
-        byte_size += size
-      end
-    else
-      case [started_by, second]
-      when [:word, :non_word_printable], [:non_word_printable, :word]
-        started_by = second
-      else
-        width += second_width
-        byte_size += second_byte_size
-        started_by = second
-      end
-    end
-    prev_width = width
-    prev_byte_size = byte_size
-    while line.bytesize > (byte_pointer + byte_size)
-      size = get_next_mbchar_size(line, byte_pointer + byte_size)
-      mbchar = line.byteslice(byte_pointer + byte_size, size)
-      case started_by
-      when :word
-        break if mbchar =~ /\W/
-      when :non_word_printable
-        break if mbchar =~ /[\w\s]/
-      end
-      prev_width = width
-      prev_byte_size = byte_size
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    [prev_byte_size, prev_width]
-  end
-
-  def self.vi_backward_word(line, byte_pointer)
-    width = 0
-    byte_size = 0
-    while 0 < (byte_pointer - byte_size)
-      size = get_prev_mbchar_size(line, byte_pointer - byte_size)
-      mbchar = line.byteslice(byte_pointer - byte_size - size, size)
-      if mbchar =~ /\S/
-        if mbchar =~ /\w/
-          started_by = :word
-        else
-          started_by = :non_word_printable
-        end
-        break
-      end
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    while 0 < (byte_pointer - byte_size)
-      size = get_prev_mbchar_size(line, byte_pointer - byte_size)
-      mbchar = line.byteslice(byte_pointer - byte_size - size, size)
-      case started_by
-      when :word
-        break if mbchar =~ /\W/
-      when :non_word_printable
-        break if mbchar =~ /[\w\s]/
-      end
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    [byte_size, width]
-  end
-
-  def self.ed_move_to_begin(line)
-    width = 0
-    byte_size = 0
-    while (line.bytesize - 1) > byte_size
-      size = get_next_mbchar_size(line, byte_size)
-      mbchar = line.byteslice(byte_size, size)
-      if mbchar =~ /\S/
-        break
-      end
-      width += get_mbchar_width(mbchar)
-      byte_size += size
-    end
-    [byte_size, width]
-  end
-end
-
-require 'reline/unicode/east_asian_width'