Module: HammerCLI::Output::Utils

Defined in:
lib/hammer_cli/output/utils.rb

Class Method Summary collapse

Class Method Details

.real_char_length(ch) ⇒ Object 



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# File 'lib/hammer_cli/output/utils.rb', line 11

def self.real_char_length(ch)
  Unicode::DisplayWidth.of(ch)
end

.real_length(value) ⇒ Object 



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# File 'lib/hammer_cli/output/utils.rb', line 6

def self.real_length(value)
  decolorized = value.gsub(/\033\[[^m]*m/, '')
  Unicode::DisplayWidth.of(decolorized)
end

.real_truncate(value, required_size) ⇒ Object 



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# File 'lib/hammer_cli/output/utils.rb', line 15

def self.real_truncate(value, required_size)
  size = 0
  index = 0
  has_colors = false
  in_color = false
  value.each_char do |ch|
    if in_color
      in_color = false if ch == "m"
    elsif ch == "\e"
      has_colors = in_color = true
    else
      increment = real_char_length(ch)
      if size + increment > required_size
        if has_colors
          return value[0..index-1] + "\e[0m", size
        else
          return value[0..index-1], size
        end
      else
        size += increment
      end
    end
    index += 1
  end
  return value, size
end