Class: APL::Parser

Inherits:
KPeg::CompiledParser
  • Object
show all
Defined in:
lib/apl/parser.kpeg.rb

Constant Summary collapse

Rules = 
{}

Instance Method Summary collapse

Instance Method Details

#__hyphen_ ⇒ Object

  • space*



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# File 'lib/apl/parser.kpeg.rb', line 25

def __hyphen_
  while true
    _tmp = apply(:_space)
    break unless _tmp
  end
  _tmp = true
  set_failed_rule :__hyphen_ unless _tmp
  return _tmp
end

#_decimal ⇒ Object

decimal = < radix digits > { text }



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# File 'lib/apl/parser.kpeg.rb', line 533

def _decimal

  _save = self.pos
  while true # sequence
    _text_start = self.pos

    _save1 = self.pos
    while true # sequence
      _tmp = apply(:_radix)
      unless _tmp
        self.pos = _save1
        break
      end
      _tmp = apply(:_digits)
      unless _tmp
        self.pos = _save1
      end
      break
    end # end sequence

    if _tmp
      text = get_text(_text_start)
    end
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;  text ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  set_failed_rule :_decimal unless _tmp
  return _tmp
end

#_DIGIT ⇒ Object

DIGIT = /[0-9]/



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# File 'lib/apl/parser.kpeg.rb', line 36

def _DIGIT
  _tmp = scan(/\A(?-mix:[0-9])/)
  set_failed_rule :_DIGIT unless _tmp
  return _tmp
end

#_digits ⇒ Object

digits = < DIGIT+ > { text }



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# File 'lib/apl/parser.kpeg.rb', line 43

def _digits

  _save = self.pos
  while true # sequence
    _text_start = self.pos
    _save1 = self.pos
    _tmp = apply(:_DIGIT)
    if _tmp
      while true
        _tmp = apply(:_DIGIT)
        break unless _tmp
      end
      _tmp = true
    else
      self.pos = _save1
    end
    if _tmp
      text = get_text(_text_start)
    end
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;  text ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  set_failed_rule :_digits unless _tmp
  return _tmp
end

#_exponent ⇒ Object

exponent = exponent_prefix integer:exponent { 10 ** exponent }



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# File 'lib/apl/parser.kpeg.rb', line 573

def _exponent

  _save = self.pos
  while true # sequence
    _tmp = apply(:_exponent_prefix)
    unless _tmp
      self.pos = _save
      break
    end
    _tmp = apply(:_integer)
    exponent = @result
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;  10 ** exponent ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  set_failed_rule :_exponent unless _tmp
  return _tmp
end

#_exponent_prefix ⇒ Object

exponent_prefix = /e/i



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# File 'lib/apl/parser.kpeg.rb', line 79

def _exponent_prefix
  _tmp = scan(/\A(?i-mx:e)/)
  set_failed_rule :_exponent_prefix unless _tmp
  return _tmp
end

#_expression ⇒ Object

expression = (function_call | term):expression - { expression }



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# File 'lib/apl/parser.kpeg.rb', line 210

def _expression

  _save = self.pos
  while true # sequence

    _save1 = self.pos
    while true # choice
      _tmp = apply(:_function_call)
      break if _tmp
      self.pos = _save1
      _tmp = apply(:_term)
      break if _tmp
      self.pos = _save1
      break
    end # end choice

    expression = @result
    unless _tmp
      self.pos = _save
      break
    end
    _tmp = apply(:__hyphen_)
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;  expression ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  set_failed_rule :_expression unless _tmp
  return _tmp
end

#_function ⇒ Object

function = < /[-+×÷]/ > { text }



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# File 'lib/apl/parser.kpeg.rb', line 163

def _function

  _save = self.pos
  while true # sequence
    _text_start = self.pos
    _tmp = scan(/\A(?-mix:[-+×÷])/)
    if _tmp
      text = get_text(_text_start)
    end
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;  text ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  set_failed_rule :_function unless _tmp
  return _tmp
end

#_function_call ⇒ Object

function_call = term?:x - function:op - expression:y { APL::AST::Function.new op: op.to_sym, x: x, y: y }



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# File 'lib/apl/parser.kpeg.rb', line 249

def _function_call

  _save = self.pos
  while true # sequence
    _save1 = self.pos
    _tmp = apply(:_term)
    @result = nil unless _tmp
    unless _tmp
      _tmp = true
      self.pos = _save1
    end
    x = @result
    unless _tmp
      self.pos = _save
      break
    end
    _tmp = apply(:__hyphen_)
    unless _tmp
      self.pos = _save
      break
    end
    _tmp = apply(:_function)
    op = @result
    unless _tmp
      self.pos = _save
      break
    end
    _tmp = apply(:__hyphen_)
    unless _tmp
      self.pos = _save
      break
    end
    _tmp = apply(:_expression)
    y = @result
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;  APL::AST::Function.new op: op.to_sym, x: x, y: y ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  set_failed_rule :_function_call unless _tmp
  return _tmp
end

#_integer ⇒ Object

integer = optional_negative:negative nonnegative_integer:integer { integer * negative }



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# File 'lib/apl/parser.kpeg.rb', line 481

def _integer

  _save = self.pos
  while true # sequence
    _tmp = apply(:_optional_negative)
    negative = @result
    unless _tmp
      self.pos = _save
      break
    end
    _tmp = apply(:_nonnegative_integer)
    integer = @result
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;  integer * negative ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  set_failed_rule :_integer unless _tmp
  return _tmp
end

#_negative_sign ⇒ Object

negative_sign = “¯” { -1 }



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# File 'lib/apl/parser.kpeg.rb', line 86

def _negative_sign

  _save = self.pos
  while true # sequence
    _tmp = match_string("\u{af}")
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;  -1 ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  set_failed_rule :_negative_sign unless _tmp
  return _tmp
end

#_nonnegative_integer ⇒ Object

nonnegative_integer = digits:num { num.to_i }



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# File 'lib/apl/parser.kpeg.rb', line 510

def _nonnegative_integer

  _save = self.pos
  while true # sequence
    _tmp = apply(:_digits)
    num = @result
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;  num.to_i ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  set_failed_rule :_nonnegative_integer unless _tmp
  return _tmp
end

#_number ⇒ Object

number = optional_negative:negative nonnegative_integer:integer decimal?:decimal exponent?:exponent - { (integer + (decimal ? decimal.to_f : 0)) * negative * (exponent || 1) }



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# File 'lib/apl/parser.kpeg.rb', line 423

def _number

  _save = self.pos
  while true # sequence
    _tmp = apply(:_optional_negative)
    negative = @result
    unless _tmp
      self.pos = _save
      break
    end
    _tmp = apply(:_nonnegative_integer)
    integer = @result
    unless _tmp
      self.pos = _save
      break
    end
    _save1 = self.pos
    _tmp = apply(:_decimal)
    @result = nil unless _tmp
    unless _tmp
      _tmp = true
      self.pos = _save1
    end
    decimal = @result
    unless _tmp
      self.pos = _save
      break
    end
    _save2 = self.pos
    _tmp = apply(:_exponent)
    @result = nil unless _tmp
    unless _tmp
      _tmp = true
      self.pos = _save2
    end
    exponent = @result
    unless _tmp
      self.pos = _save
      break
    end
    _tmp = apply(:__hyphen_)
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;  (integer + (decimal ? decimal.to_f : 0)) * negative * (exponent || 1) ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  set_failed_rule :_number unless _tmp
  return _tmp
end

#_optional_negative ⇒ Object

optional_negative = negative_sign?:negative { negative || 1 }



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# File 'lib/apl/parser.kpeg.rb', line 108

def _optional_negative

  _save = self.pos
  while true # sequence
    _save1 = self.pos
    _tmp = apply(:_negative_sign)
    @result = nil unless _tmp
    unless _tmp
      _tmp = true
      self.pos = _save1
    end
    negative = @result
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;  negative || 1 ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  set_failed_rule :_optional_negative unless _tmp
  return _tmp
end

#_primitive_value ⇒ Object

primitive_value = (vector | number):value { value }



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# File 'lib/apl/parser.kpeg.rb', line 355

def _primitive_value

  _save = self.pos
  while true # sequence

    _save1 = self.pos
    while true # choice
      _tmp = apply(:_vector)
      break if _tmp
      self.pos = _save1
      _tmp = apply(:_number)
      break if _tmp
      self.pos = _save1
      break
    end # end choice

    value = @result
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;  value ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  set_failed_rule :_primitive_value unless _tmp
  return _tmp
end

#_radix ⇒ Object

radix = < “.” > { text }



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# File 'lib/apl/parser.kpeg.rb', line 137

def _radix

  _save = self.pos
  while true # sequence
    _text_start = self.pos
    _tmp = match_string(".")
    if _tmp
      text = get_text(_text_start)
    end
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;  text ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  set_failed_rule :_radix unless _tmp
  return _tmp
end

#_root ⇒ Object

root = - expression



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# File 'lib/apl/parser.kpeg.rb', line 189

def _root

  _save = self.pos
  while true # sequence
    _tmp = apply(:__hyphen_)
    unless _tmp
      self.pos = _save
      break
    end
    _tmp = apply(:_expression)
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  set_failed_rule :_root unless _tmp
  return _tmp
end

#_space ⇒ Object

space = /s/



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# File 'lib/apl/parser.kpeg.rb', line 18

def _space
  _tmp = scan(/\A(?-mix:\s)/)
  set_failed_rule :_space unless _tmp
  return _tmp
end

#_term ⇒ Object

term = (primitive_value:value | “(” - expression:value - “)” { value })



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# File 'lib/apl/parser.kpeg.rb', line 300

def _term

  _save = self.pos
  while true # choice
    _tmp = apply(:_primitive_value)
    value = @result
    break if _tmp
    self.pos = _save

    _save1 = self.pos
    while true # sequence
      _tmp = match_string("(")
      unless _tmp
        self.pos = _save1
        break
      end
      _tmp = apply(:__hyphen_)
      unless _tmp
        self.pos = _save1
        break
      end
      _tmp = apply(:_expression)
      value = @result
      unless _tmp
        self.pos = _save1
        break
      end
      _tmp = apply(:__hyphen_)
      unless _tmp
        self.pos = _save1
        break
      end
      _tmp = match_string(")")
      unless _tmp
        self.pos = _save1
        break
      end
      @result = begin;  value ; end
      _tmp = true
      unless _tmp
        self.pos = _save1
      end
      break
    end # end sequence

    break if _tmp
    self.pos = _save
    break
  end # end choice

  set_failed_rule :_term unless _tmp
  return _tmp
end

#_vector ⇒ Object

vector = number:first primitive_value:rest - { Array(first) + Array(rest) }



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# File 'lib/apl/parser.kpeg.rb', line 389

def _vector

  _save = self.pos
  while true # sequence
    _tmp = apply(:_number)
    first = @result
    unless _tmp
      self.pos = _save
      break
    end
    _tmp = apply(:_primitive_value)
    rest = @result
    unless _tmp
      self.pos = _save
      break
    end
    _tmp = apply(:__hyphen_)
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;  Array(first) + Array(rest) ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence

  set_failed_rule :_vector unless _tmp
  return _tmp
end

#failure? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/apl/parser.kpeg.rb', line 10

def failure?
  !success?
end

#success? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/apl/parser.kpeg.rb', line 6

def success?
  @pos == @string_size
end