intprog_hackery/sorting_algos.rb

# TODO: Make variadic, such that we only need one method
def compare_to_two_vars(first, second)

  if first.type == "String"
    if_statement = "
    if (!this.#{first.variable}.equals(other.#{first.variable}) {
      return this.#{first.variable}.compareTo(other.#{first.variable});
    }
    "
  else
    if first.comparator == ">"
      return_string = "return this.#{first.variable} - other.#{first.variable};"
    else
      return_string = "return other.#{first.variable} - this.#{first.variable};"
    end
    if_statement = "
      if (this.#{first_variable} != other.#{first.variable} {
        #{return_string}
      }
    "
  end

  if second.type == "String"
    return_string = "return this.#{second.variable}.compareTo(other.#{second.variable});"
  else
    if second.comparator == ">"
      return_string = "return this.#{second.variable} - other.#{second.variable};"
    else
      return_string = "return other.#{second.variable} - this.#{second.variable};"
    end
  end
  "
  #{if_statement}
  #{return_string}
  "
end

def compare_to_three_vars(first, second, third)
  if first.type == "String"
    if_statement = "
    if (!this.#{first.variable}.equals(other.#{first.variable})) {
      return this.#{first.variable}.compareTo(other.#{first.variable});
    }
    "
  else
    if first.comparator == ">"
      return_string = "return this.#{first.variable} - other.#{first.variable};"
    else
      return_string = "return other.#{first.variable} - this.#{first.variable};"
    end
    if_statement = "
      if (this.#{first.variable} != other.#{first.variable}) {
        #{return_string}
      }
    "
  end

  if second.type == "String"
    else_if_statement = "
    else if (!this.#{second.variable}.equals(other.#{second.variable})) {
      return this.#{second.variable}.compareTo(other.#{second.variable};
    }
    "
  else
    if second.comparator == ">"
      return_string = "return this.#{second.variable} - other.#{second.variable};"
    else
      return_string = "return other.#{second.variable} - this.#{second.variable};"
    end
    else_if_statement = "
      else if (this.#{second.variable} != other.#{second.variable}) {
        #{return_string}
      }
    "
  end

  if third.type == "String"
    return_string = "return this.#{third.variable}.compareTo(other.#{third.variable});"
  else
    if third.comparator == ">"
      return_string = "return this.#{third.variable} - other.#{third.variable};"
    else
      return_string = "return other.#{third.variable} - this.#{third.variable};"
    end
  end

  "
  #{if_statement}
  #{else_if_statement}
  #{return_string}
  "
end