Class: String

Inherits:
Object
  • Object
show all
Defined in:
lib/mb_string/core_ext/string.rb

Instance Method Summary collapse

Instance Method Details

#mb_center(width, pad_str = " ") ⇒ Object 



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# File 'lib/mb_string/core_ext/string.rb', line 18

def mb_center(width, pad_str = " ")
  return center(width, pad_str) if ascii_only? && pad_str.ascii_only?
  mb_execute(width) do |pad_size|
    left_pad_size = pad_size / 2
    right_pad_size = pad_size - left_pad_size

    right_padding = mb_build_padding(right_pad_size, pad_str)
    left_padding  = mb_build_padding(left_pad_size, pad_str, is_append_right: false)

    left_padding + self + right_padding
  end
end

#mb_ljust(width, pad_str = " ") ⇒ Object 



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# File 'lib/mb_string/core_ext/string.rb', line 4

def mb_ljust(width, pad_str = " ")
  return ljust(width, pad_str) if ascii_only? && pad_str.ascii_only?
  mb_execute(width) do |pad_size|
    self + mb_build_padding(pad_size, pad_str)
  end
end

#mb_rjust(width, pad_str = " ") ⇒ Object 



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# File 'lib/mb_string/core_ext/string.rb', line 11

def mb_rjust(width, pad_str = " ")
  return rjust(width, pad_str) if ascii_only? && pad_str.ascii_only?
  mb_execute(width) do |pad_size|
    mb_build_padding(pad_size, pad_str, is_append_right: false) + self
  end
end

#mb_truncate(truncate_at, options = {}) ⇒ Object 



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# File 'lib/mb_string/core_ext/string.rb', line 31

def mb_truncate(truncate_at, options = {})
  return dup unless display_width > truncate_at

  omission = options[:omission] || "..."
  length_with_room_for_omission = truncate_at - omission.display_width

  size = 0
  slice = ""
  each_char do |c|
    char_size = c.display_width
    if size + char_size > length_with_room_for_omission
      slice << omission
      break
    end
    size += char_size
    slice << c
  end
  slice
end