Class: CitizenBudgetModel::EquationValidator

Inherits:
ActiveModel::EachValidator
  • Object
show all
Defined in:
app/validators/citizen_budget_model/equation_validator.rb

Overview

Validates the format of simple mathematical equation.

Class Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Class Attribute Details

._validator_index_offsets ⇒ Object

Returns the value of attribute _validator_index_offsets.



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# File 'app/validators/citizen_budget_model/equation_validator.rb', line 51

def _validator_index_offsets
  @_validator_index_offsets
end

._validator_indicies ⇒ Object

Returns the value of attribute _validator_indicies.



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# File 'app/validators/citizen_budget_model/equation_validator.rb', line 64

def _validator_indicies
  @_validator_indicies
end

._validator_key_spans ⇒ Object

Returns the value of attribute _validator_key_spans.



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# File 'app/validators/citizen_budget_model/equation_validator.rb', line 38

def _validator_key_spans
  @_validator_key_spans
end

._validator_trans_actions ⇒ Object

Returns the value of attribute _validator_trans_actions.



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# File 'app/validators/citizen_budget_model/equation_validator.rb', line 353

def _validator_trans_actions
  @_validator_trans_actions
end

._validator_trans_keys ⇒ Object

Returns the value of attribute _validator_trans_keys.



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# File 'app/validators/citizen_budget_model/equation_validator.rb', line 13

def _validator_trans_keys
  @_validator_trans_keys
end

._validator_trans_targs ⇒ Object

Returns the value of attribute _validator_trans_targs.



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# File 'app/validators/citizen_budget_model/equation_validator.rb', line 340

def _validator_trans_targs
  @_validator_trans_targs
end

.validator_en_main ⇒ Object

Returns the value of attribute validator_en_main.



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# File 'app/validators/citizen_budget_model/equation_validator.rb', line 383

def validator_en_main
  @validator_en_main
end

.validator_en_rest ⇒ Object

Returns the value of attribute validator_en_rest.



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# File 'app/validators/citizen_budget_model/equation_validator.rb', line 379

def validator_en_rest
  @validator_en_rest
end

.validator_error ⇒ Object

Returns the value of attribute validator_error.



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# File 'app/validators/citizen_budget_model/equation_validator.rb', line 374

def validator_error
  @validator_error
end

.validator_first_final ⇒ Object

Returns the value of attribute validator_first_final.



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# File 'app/validators/citizen_budget_model/equation_validator.rb', line 370

def validator_first_final
  @validator_first_final
end

.validator_start ⇒ Object

Returns the value of attribute validator_start.



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# File 'app/validators/citizen_budget_model/equation_validator.rb', line 366

def validator_start
  @validator_start
end

Class Method Details

.valid?(value) ⇒ Boolean

Returns whether an equation is valid.

Parameters:

  • value (String) —

    an equation

Returns:

  • (Boolean) —

    whether the equation is valid

See Also:



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# File 'app/validators/citizen_budget_model/equation_validator.rb', line 396

def self.valid?(value)
  data = value.unpack('c*')
  stack = []

  
# line 402 "app/validators/citizen_budget_model/equation_validator.rb"
begin
	p ||= 0
	pe ||= data.length
	cs = validator_start
	top = 0
end

# line 35 "app/validators/citizen_budget_model/equation_validator.rl"
  
# line 412 "app/validators/citizen_budget_model/equation_validator.rb"
begin
	testEof = false
	_slen, _trans, _keys, _inds, _acts, _nacts = nil
	_goto_level = 0
	_resume = 10
	_eof_trans = 15
	_again = 20
	_test_eof = 30
	_out = 40
	while true
	if _goto_level <= 0
	if p == pe
		_goto_level = _test_eof
		next
	end
	if cs == 0
		_goto_level = _out
		next
	end
	end
	if _goto_level <= _resume
	_keys = cs << 1
	_inds = _validator_index_offsets[cs]
	_slen = _validator_key_spans[cs]
	_wide = data[p].ord
	_trans = if (   _slen > 0 && 
			_validator_trans_keys[_keys] <= _wide && 
			_wide <= _validator_trans_keys[_keys + 1] 
  ) then
			_validator_indicies[ _inds + _wide - _validator_trans_keys[_keys] ] 
		 else 
			_validator_indicies[ _inds + _slen ]
		 end
	cs = _validator_trans_targs[_trans]
	if _validator_trans_actions[_trans] != 0
	case _validator_trans_actions[_trans]
	when 1 then
# line 8 "app/validators/citizen_budget_model/equation_validator.rl"
		begin
 	begin
		stack[top] = cs
		top+= 1
		cs = 18
		_goto_level = _again
		next
	end
 		end
	when 2 then
# line 14 "app/validators/citizen_budget_model/equation_validator.rl"
		begin
 	begin
		top -= 1
		cs = stack[top]
		_goto_level = _again
		next
	end
 		end
# line 470 "app/validators/citizen_budget_model/equation_validator.rb"
	end
	end
	end
	if _goto_level <= _again
	if cs == 0
		_goto_level = _out
		next
	end
	p += 1
	if p != pe
		_goto_level = _resume
		next
	end
	end
	if _goto_level <= _test_eof
	end
	if _goto_level <= _out
		break
	end
end
	end

# line 36 "app/validators/citizen_budget_model/equation_validator.rl"

  # Ensure all parentheses are closed and the state machine is in a final state.
  top.zero? && cs >= validator_first_final
end

Instance Method Details

#validate_each(record, attribute, value) ⇒ Object 



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# File 'app/validators/citizen_budget_model/equation_validator.rb', line 498

def validate_each(record, attribute, value)
  record.errors.add(attribute, :invalid, options.merge(value: value)) unless self.class.valid?(value)
end