class String

Public Instance Methods

dispformat(target) click to toggle source

指定した長さに丸めたり末尾に空白を挿入したりする @return [String]

# File lib/d1lcs/string.rb, line 56
def dispformat(target)
  long = self.dispsize
  case long
  when 1..target - 1
    self + ' ' * (target - long)
  when target
    self
  else
    self.dispsize_cut(target, true)
  end
end
dispsize() click to toggle source

文字列を表示するために使うサイズを返す @return [Integer]

# File lib/d1lcs/string.rb, line 18
def dispsize
  charsize = 0

  self.each_char do |char|
    if char.bytesize > 1
      charsize += 2
    else
      charsize += 1
    end
  end

  charsize
end
dispsize_cut(long, dot = false) click to toggle source

表示サイズに文字列を切り詰める @param long [Integer] 生成文字列の長さ @param dot [Boolean] 末尾に … を付加するか @return [String]

# File lib/d1lcs/string.rb, line 36
def dispsize_cut(long, dot = false)
  return self if self.dispsize <= long
  
  result = ''
  chars = self.chars
  nowlong = dot ? 2 : 0
  
  chars.each { |char|
    if (nowlong += char.dispsize) <= long
      result << char
    end
  }

  result << '…' if dot
  result << ' ' unless result.dispsize == long
  result
end
full_to_half() click to toggle source

数字を半角に変換する @return [String]

# File lib/d1lcs/string.rb, line 12
def full_to_half
  self.tr('0-9', '0-9')
end
half_to_full() click to toggle source

数字を全角に変換する @return [String]

# File lib/d1lcs/string.rb, line 6
def half_to_full
  self.tr('0-9', '0-9')
end