Class: Yaparc::NoFail

Inherits:
Object
  • Object
show all
Includes:
Parsable
Defined in:
lib/yaparc/no_fail.rb

Overview

hutton92:_higher_order_funct_parsin,p.19 www.cambridge.org/core/journals/journal-of-functional-programming/article/higherorder-functions-for-parsing/0490F2C8511F7625F9FC15BFFEDBB0AA

Constant Summary

Constants included from Parsable

Parsable::IS_ALPHANUM, Parsable::IS_CR, Parsable::IS_DIGIT, Parsable::IS_LOWER, Parsable::IS_SPACE, Parsable::IS_WHITESPACE

Instance Method Summary collapse

Methods included from Parsable

#parse

Constructor Details

#initialize(parser) ⇒ NoFail

Returns a new instance of NoFail.



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# File 'lib/yaparc/no_fail.rb', line 9

def initialize(parser)
  @parser = lambda do |input|
    result = parser.parse(input)
    if result.instance_of?(Fail)
      Error.new(value: result.value, input: result.input)
    else
      Succeed.new(result.value)
    end
  end
end