Class: Formatador

Inherits:
Object
  • Object
show all
Defined in:
lib/formatador.rb,
lib/formatador/table.rb,
lib/formatador/progressbar.rb

Defined Under Namespace

Classes: ProgressBar

Constant Summary collapse

VERSION = 
'1.1.0'
STYLES = 
{
  :"\/"             => "0",
  :reset            => "0",
  :bold             => "1",
  :underline        => "4",
  :blink_slow       => "5",
  :blink_fast       => "6",
  :negative         => "7", # invert color/color
  :normal           => "22",
  :underline_none   => "24",
  :blink_off        => "25",
  :positive         => "27", # revert color/color
  :_black_          => "40",
  :_red_            => "41",
  :_green_          => "42",
  :_yellow_         => "43",
  :_blue_           => "44",
  :_magenta_        => "45",
  :_purple_         => "45",
  :_cyan_           => "46",
  :_white_          => "47",
  :_light_black_    => "100",
  :_light_red_      => "101",
  :_light_green_    => "102",
  :_light_yellow_   => "103",
  :_light_blue_     => "104",
  :_light_magenta_  => "105",
  :_light_purple_   => "105",
  :_light_cyan_     => "106",
  :black            => "30",
  :red              => "31",
  :green            => "32",
  :yellow           => "33",
  :blue             => "34",
  :magenta          => "35",
  :purple           => "35",
  :cyan             => "36",
  :white            => "37",
  :light_black      => "90",
  :light_red        => "91",
  :light_green      => "92",
  :light_yellow     => "93",
  :light_blue       => "94",
  :light_magenta    => "95",
  :light_purple     => "95",
  :light_cyan       => "96",
}
PARSE_REGEX = 
/\[(#{ STYLES.keys.join('|') })\]/ix
INDENT_REGEX = 
/\[indent\]/ix

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Formatador

Returns a new instance of Formatador.



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# File 'lib/formatador.rb', line 59

def initialize
  @indent = 1
end

Instance Method Details

#display(string = '') ⇒ Object 



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# File 'lib/formatador.rb', line 63

def display(string = '')
  print(parse("[indent]#{string}"))
  $stdout.flush
  nil
end

#display_compact_table(hashes, keys = nil, **options, &block) ⇒ Object 



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# File 'lib/formatador/table.rb', line 10

def display_compact_table(hashes, keys = nil, **options, &block)
  headers = keys || []
  widths = {}

  # Calculate Widths
  if hashes.empty? && keys
    keys.each do |key|
      widths[key] = key.to_s.length
    end
  else
    hashes.each do |hash|
      next unless hash.respond_to?(:keys)

      (headers + hash.keys).each do |key|
        if !keys
          headers << key
        end
        widths[key] = [ length(key), widths[key] || 0, length(calculate_datum(key, hash)) || 0].max
      end
      headers = headers.uniq
    end
  end

  # Determine order of headers
  if block_given?
    headers = headers.sort(&block)
  elsif !keys
    headers = headers.sort {|x,y| x.to_s <=> y.to_s}
  end

  # Display separator row
  split = "+"
  if headers.empty?
    split << '--+'
  else
    headers.each do |header|
      widths[header] ||= length(header)
      split << ('-' * (widths[header] + 2)) << '+'
    end
  end
  display_line(split)

  # Display data row
  columns = []
  headers.each do |header|
    columns << "[bold]#{header}[/]#{' ' * (widths[header] - header.to_s.length)}"
  end
  display_line("| #{columns.join(' | ')} |")
  display_line(split)

  hashes.each do |hash|
    if hash.respond_to? :keys
      columns = headers.map do |header|
        datum = calculate_datum(header, hash)
        width = widths[header] - length(datum)
        width = width < 0 ? 0 : width

        datum.is_a?(Numeric) && options[:numeric_rjust] ? "#{' ' * width}#{datum}" : "#{datum}#{' ' * width}"
      end
      display_line("| #{columns.join(' | ')} |")
    else
      if hash == :split
        display_line(split)
      end 
    end
    nil
  end
  display_line(split)
end

#display_line(string = '') ⇒ Object 



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# File 'lib/formatador.rb', line 69

def display_line(string = '')
  display(string)
  new_line
  nil
end

#display_lines(lines = []) ⇒ Object 



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# File 'lib/formatador.rb', line 75

def display_lines(lines = [])
  for line in [*lines]
    display_line(line)
  end
  nil
end

#display_table(hashes, keys = nil, **options, &block) ⇒ Object 



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# File 'lib/formatador/table.rb', line 2

def display_table(hashes, keys = nil, **options, &block)
  new_hashes = hashes.inject([]) do |accum,item|
    accum << :split unless accum.empty?
    accum << item
  end
  display_compact_table(new_hashes, keys, **options, &block)
end

#indent(&block) ⇒ Object 



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# File 'lib/formatador.rb', line 90

def indent(&block)
  @indent += 1
  yield
ensure
  @indent -= 1
end

#indentation ⇒ Object 



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# File 'lib/formatador.rb', line 97

def indentation
  '  ' * @indent
end

#new_line ⇒ Object 



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# File 'lib/formatador.rb', line 113

def new_line
  print("\n")
  nil
end

#parse(string) ⇒ Object 



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# File 'lib/formatador.rb', line 82

def parse(string)
  if $stdout.tty?
    string.gsub(PARSE_REGEX) { "\e[#{STYLES[$1.to_sym]}m" }.gsub(INDENT_REGEX) { indentation }
  else
    strip(string)
  end
end

#redisplay(string = '', width = 120) ⇒ Object 



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# File 'lib/formatador.rb', line 101

def redisplay(string = '', width = 120)
  print("\r#{' ' * width}\r")
  display("#{string}")
  nil
end

#redisplay_line(string = '', width = 120) ⇒ Object 



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# File 'lib/formatador.rb', line 107

def redisplay_line(string = '', width = 120)
  redisplay(string, width)
  new_line
  nil
end

#redisplay_progressbar(current, total, options = {}) ⇒ Object 



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# File 'lib/formatador/progressbar.rb', line 34

def redisplay_progressbar(current, total, options = {})
  options = { :color => 'white', :width => 50, :new_line => true }.merge!(options)
  data = progressbar(current, total, options)
  if current < total
    redisplay(data, options[:width])
  else
    redisplay("#{data}", options[:width])
    if options[:new_line]
      new_line
    end
    @progressbar_started_at = nil
  end
end

#strip(string) ⇒ Object 



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# File 'lib/formatador.rb', line 118

def strip(string)
  string.gsub(PARSE_REGEX, '').gsub(INDENT_REGEX) { indentation }
end