Module: Cerata

Defined in:
lib/probatio/more.rb

Class Method Summary collapse

Class Method Details

.horizontal_a_to_s(a, indent = '') ⇒ Object

TODO deal with double width characters...



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# File 'lib/probatio/more.rb', line 69

def horizontal_a_to_s(a, indent='')

  return '[]' if a.empty?

  o = StringIO.new

  o << indent << '[ '
  a1 = a.dup; while e = a1.shift
    o << e.inspect
    o << ', ' if a1.any?
  end
  o << ' ]'

  o.string
end

.horizontal_h_to_s(h, indent = '') ⇒ Object 



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# File 'lib/probatio/more.rb', line 85

def horizontal_h_to_s(h, indent='')

  return '{}' if h.empty?

  o = StringIO.new

  o << indent << '{ '
  kvs = h.to_a; while kv = kvs.shift
    o << "#{kv.first}: " << kv[1].inspect
    o << ', ' if kvs.any?
  end
  o << ' }'

  o.string
end

.table_to_s(a, indent = '') ⇒ Object

A "table" here is an array of hashes



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# File 'lib/probatio/more.rb', line 116

def table_to_s(a, indent='')

  return '[]' if a.empty?

  all_keys =
    a.collect { |h| h.keys }.flatten.uniq.map(&:to_s)
  key_widths =
    all_keys.inject({}) { |h, k| h[k] = k.length; h }
  val_widths =
    a.inject({}) { |w, h|
      h.each { |k, v| k = k.to_s; w[k] = [ w[k] || 0, v.inspect.length ].max }
      w }

  o = StringIO.new

  o << indent << "[\n"

  a.each do |h|
    o << indent << '{ '
    kvs = h.to_a; while kv = kvs.shift
      k, v = kv[0].to_s, kv[1].inspect
      kl, vl = key_widths[k], val_widths[k]
      kf = "%#{kl}s"
      vf = (v.is_a?(String) && v.start_with?('"')) ? "%-#{vl}s" : "%#{vl}s"
      o << ("#{kf}: #{vf}" % [ k, v ])
      o << ', ' if kvs.any?
    end
    o << " },\n"
  end

  o << indent << ']'

  o.string
end

.vertical_h_to_s(h, indent = '') ⇒ Object 



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# File 'lib/probatio/more.rb', line 101

def vertical_h_to_s(h, indent='')

  return '{}' if h.empty?

  o = StringIO.new

  o << indent << "{\n"
  h.each { |k, v| o << indent << "#{k}: " << v.inspect << ",\n" }
  o << indent << '}'

  o.string
end