Module: Flor::Djan

Extended by:
Djan
Included in:
Djan
Defined in:
lib/flor/djan.rb

Instance Method Summary collapse

Instance Method Details

#adjust(x, opts) ⇒ Object 



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# File 'lib/flor/djan.rb', line 69

def adjust(x, opts)

  i = opts[:indent]
  w = opts[:width]

  return opts unless i && w && (i + len(x, opts) < w)
  opts.merge(indent: nil)
end

#array_to_d(x, out, opts) ⇒ Object 



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# File 'lib/flor/djan.rb', line 174

def array_to_d(x, out, opts)

  inner = opts.delete(:inner)

  indent_space(out, opts)

  return c_inf('[]', out, opts) if x.empty?

  opts = adjust(x, opts)

  unless inner
    c_inf('[', out, opts); space(out, opts)
  end

  x.each_with_index do |e, i|
    to_d(e, out, indent(opts, first: i == 0))
    if i < x.size - 1
      c_inf(',', out, opts)
      newline_or_space(out, opts)
    end
  end

  unless inner
    space(out, opts); c_inf(']', out, opts)
  end
end

#boolean_to_d(x, out, opts) ⇒ Object 



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# File 'lib/flor/djan.rb', line 223

def boolean_to_d(x, out, opts)

  indent_space(out, opts); x ? c_tru(x, out, opts) : c_fal(x, out, opts)
end

#c_fal(s, out, opts) ⇒ Object 



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# File 'lib/flor/djan.rb', line 242

def c_fal(s, out, opts); out << opts[:c].red(s); end

#c_inf(s, out, opts) ⇒ Object 



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# File 'lib/flor/djan.rb', line 238

def c_inf(s, out, opts); out << opts[:c].dark_gray(s); end

#c_nil(s, out, opts) ⇒ Object 



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# File 'lib/flor/djan.rb', line 240

def c_nil(s, out, opts); out << opts[:c].dark_gray(s); end

#c_num(s, out, opts) ⇒ Object

out << opts.brown(s).tap { |x| p [ x, x.encoding ] } out << opts.brown(s).encode(‘UTF-8’)



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# File 'lib/flor/djan.rb', line 249

def c_num(s, out, opts); out << opts[:c].light_blue(s); end

#c_str(s, out, opts) ⇒ Object

def c_str(s, out, opts); out << opts.brown(s); end



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# File 'lib/flor/djan.rb', line 244

def c_str(s, out, opts)
  out << opts[:c].brown(s)
  #out << opts[:c].brown(s).tap { |x| p [ x, x.encoding ] }
  #out << opts[:c].brown(s).encode('UTF-8')
end

#c_tru(s, out, opts) ⇒ Object 



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# File 'lib/flor/djan.rb', line 241

def c_tru(s, out, opts); out << opts[:c].green(s); end

#indent(opts, os = {}) ⇒ Object 



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# File 'lib/flor/djan.rb', line 109

def indent(opts, os={})

  if kt = os[:keytab]
    opts.merge(indent: nil, keytab: kt)
  elsif i = opts[:indent]
    opts.merge(indent: i + (os[:inc] || 1) * 2, first: os[:first])
  else
    opts
  end
end

#indent_space(out, opts) ⇒ Object 



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# File 'lib/flor/djan.rb', line 102

def indent_space(out, opts)

  return if opts.delete(:first)
  i = opts[:indent]
  out << ' ' * i if i
end

#len(x, opts) ⇒ Object 



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# File 'lib/flor/djan.rb', line 59

def len(x, opts)

  opts = opts.merge(c: Flor.no_colours, indent: nil, width: nil)
  o = StringIO.new

  to_d(x, o, opts)

  o.string.length
end

#newline(out, opts) ⇒ Object 



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# File 'lib/flor/djan.rb', line 78

def newline(out, opts)

  out << "\n"
end

#newline_or_space(out, opts) ⇒ Object 



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# File 'lib/flor/djan.rb', line 88

def newline_or_space(out, opts)

  if kt = opts[:keytab]
    out << ' ' * kt
    :indent
  elsif opts[:indent]
    newline(out, opts)
    :newline
  elsif ! opts[:compact]
    space(out, opts)
    :space
  end
end

#nil_to_d(x, out, opts) ⇒ Object 



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# File 'lib/flor/djan.rb', line 233

def nil_to_d(x, out, opts)

  indent_space(out, opts); c_nil('null', out, opts)
end

#num_to_d(x, out, opts) ⇒ Object 



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# File 'lib/flor/djan.rb', line 228

def num_to_d(x, out, opts)

  indent_space(out, opts); c_num(x, out, opts)
end

#object_to_d(x, out, opts) ⇒ Object 



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# File 'lib/flor/djan.rb', line 120

def object_to_d(x, out, opts)

  inner = opts.delete(:inner)

  indent_space(out, opts)

  return c_inf('{}', out, opts) if x.empty?

  opts = adjust(x, opts)

  unless inner
    c_inf('{', out, opts); space(out, opts)
  end

  key_max_len =
    if opts[:compact]
      nil
    else
      i = opts[:indent]
      w = opts[:width]
        #
      kml, vml =
        x.inject([ 0, 0 ]) { |(kl, vl), (k, v)|
          [ [ kl, len(k, opts) ].max, [ vl, len(v, opts) ].max ] }
      kml += 1
        #
      if i && w && i + kml + 1 + vml < w
        kml
      else
        nil
      end
    end

  x.each_with_index do |(k, v), ii|

    kl = string_to_d(k, out, indent(opts, first: ii == 0))
    c_inf(':', out, opts)

    kt = key_max_len ? key_max_len - kl : nil
    r = newline_or_space(out, opts.merge(keytab: kt))

    to_d(v, out, indent(opts, inc: 2, keytab: r == :newline ? kt : 1))

    if ii < x.size - 1
      c_inf(',', out, opts)
      newline_or_space(out, opts)
    end
  end

  unless inner
    space(out, opts); c_inf('}', out, opts)
  end
end

#space(out, opts, force = false) ⇒ Object 



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# File 'lib/flor/djan.rb', line 83

def space(out, opts, force=false)

  out << ' ' if force || ! opts[:compact]
end

#string_to_d(x, out, opts) ⇒ Object 



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# File 'lib/flor/djan.rb', line 201

def string_to_d(x, out, opts)

  x = x.to_s

  indent_space(out, opts)

  if (
    opts[:json] ||
    x.match(/\A[^: \b\f\n\r\t"',()\[\]{}#\\+%\/><^!=-]+\z/) == nil ||
    x.to_i.to_s == x ||
    x.to_f.to_s == x ||
    opts[:str_escape].include?(x)
  ) then
    s = x.inspect
    c_str(s, out, opts)
    s.length
  else
    c_str(x, out, opts)
    x.length
  end
end

#to_d(x, out, opts) ⇒ Object 



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# File 'lib/flor/djan.rb', line 46

def to_d(x, out, opts)

  case x
  when nil then nil_to_d(x, out, opts)
  when String then string_to_d(x, out, opts)
  when Hash then object_to_d(x, out, opts)
  when Array then array_to_d(x, out, opts)
  when TrueClass then boolean_to_d(x.to_s, out, opts)
  when FalseClass then boolean_to_d(x.to_s, out, opts)
  else num_to_d(x.to_s, out, opts)
  end
end