Class: Aozora2Html::RubyBuffer

Inherits:
Object
  • Object
show all
Defined in:
lib/aozora2html/ruby_buffer.rb

Overview

ルビ文字列解析用バッファ

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ RubyBuffer

Returns a new instance of RubyBuffer.



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# File 'lib/aozora2html/ruby_buffer.rb', line 11

def initialize
  clear
end

Instance Attribute Details

#protected ⇒ Object

‘｜`が来た時に真にする。ルビの親文字のガード用。



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# File 'lib/aozora2html/ruby_buffer.rb', line 9

def protected
  @protected
end

Instance Method Details

#clear ⇒ Object

バッファの初期化。‘“”`の1要素のバッファにする。



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# File 'lib/aozora2html/ruby_buffer.rb', line 16

def clear
  @ruby_buf = [+'']
  @protected = nil
  @char_type = nil
end

#create_ruby(parser, ruby) ⇒ Object 



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# File 'lib/aozora2html/ruby_buffer.rb', line 34

def create_ruby(parser, ruby)
  ans = +''
  notes = []

  @ruby_buf.each do |token|
    if token.is_a?(Aozora2Html::Tag::UnEmbedGaiji)
      ans.concat(GAIJI_MARK)
      token.escape!
      notes.push(token)
    else
      ans.concat(token.to_s)
    end
  end

  notes.unshift(Aozora2Html::Tag::Ruby.new(parser, ans, ruby))
  clear

  notes
end

#dump_into(buffer) ⇒ Object

buffer management



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# File 'lib/aozora2html/ruby_buffer.rb', line 75

def dump_into(buffer)
  if @protected
    @ruby_buf.unshift(RUBY_PREFIX)
    @protected = nil
  end
  top = @ruby_buf[0]
  if top.is_a?(String) && buffer.last.is_a?(String)
    buffer.last.concat(top)
    buffer.concat(@ruby_buf[1, @ruby_buf.length])
  else
    buffer.concat(@ruby_buf)
  end
  clear
  buffer
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/aozora2html/ruby_buffer.rb', line 22

def empty?
  @ruby_buf.empty?
end

#last ⇒ Object 



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# File 'lib/aozora2html/ruby_buffer.rb', line 54

def last
  @ruby_buf.last
end

#length ⇒ Object 



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# File 'lib/aozora2html/ruby_buffer.rb', line 70

def length
  @ruby_buf.length
end

#present? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/aozora2html/ruby_buffer.rb', line 26

def present?
  !empty?
end

#push(item) ⇒ Object

バッファ末尾にitemを追加する

itemとバッファの最後尾がどちらもStringであれば連結したStringにし、そうでなければバッファの末尾に新しい要素として追加する



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# File 'lib/aozora2html/ruby_buffer.rb', line 62

def push(item)
  if last.is_a?(String) && item.is_a?(String)
    @ruby_buf.last.concat(item)
  else
    @ruby_buf.push(item)
  end
end

#push_char(char, buffer) ⇒ Object 



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# File 'lib/aozora2html/ruby_buffer.rb', line 91

def push_char(char, buffer)
  ctype = char_type(char)
  if (ctype == :hankaku_terminate) && (@char_type == :hankaku)
    push(char)
    @char_type = :else
  elsif @protected || ((ctype != :else) && (ctype == @char_type))
    push(char)
  else
    dump_into(buffer)
    push(char)
    @char_type = ctype
  end
end

#to_a ⇒ Object 



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# File 'lib/aozora2html/ruby_buffer.rb', line 30

def to_a
  @ruby_buf
end