Module: Railbow::TextUtils

Included in:
Formatters::Base, Railbow::Table::Renderer
Defined in:
lib/railbow/text_utils.rb

Instance Method Summary collapse

Instance Method Details

#display_width(str) ⇒ Object 



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# File 'lib/railbow/text_utils.rb', line 11

def display_width(str)
  Unicode::DisplayWidth.of(str.to_s)
end

#strip_ansi(str) ⇒ Object 



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# File 'lib/railbow/text_utils.rb', line 7

def strip_ansi(str)
  str.to_s.gsub(/\e\[[0-9;]*m/, "")
end

#truncate_str(str, max_width) ⇒ Object 



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# File 'lib/railbow/text_utils.rb', line 15

def truncate_str(str, max_width)
  return str if display_width(strip_ansi(str)) <= max_width

  plain = strip_ansi(str)
  truncated = +""
  width = 0
  plain.each_char do |ch|
    ch_width = display_width(ch)
    break if width + ch_width > max_width - 3
    truncated << ch
    width += ch_width
  end
  "#{truncated}..."
end