Find patterns in strings

find_patterns.rb

# pattern - source: both Strings
# find pattern 0s(vocals) and 1s(consonants)
# in source
# vocals: aeiouy

def calculate(pattern, source)

	pattern_arr = pattern.split('')
	source_arr = source.split('')

	pattern_size = pattern_arr.length

	iterations = source_arr.length - pattern_size + 1
	match_counter = 0

	iterations.times do |i|
		digit_counter = 0

		for j in (0..pattern_size-1) do
			if((vocal_and_zero?(source_arr[i+j], pattern_arr[j])) ||
				(consonant_and_one?(source_arr[i+j], pattern_arr[j])))

				digit_counter += 1
			else
				break
			end
		end
		match_counter += 1 if digit_counter == pattern_size
	end

	match_counter
end

def vocal_and_zero?(vocal, digit)
	vocal?(vocal) && zero?(digit)
end

def consonant_and_one?(consonant, digit)
	consonant?(consonant) && one?(digit)
end

def vocal?(str)
	(/[aeiouy]/ =~ str) == 0
end

def consonant?(str)
	!vocal?(str)
end

def zero?(str)
	str == "0"
end

def one?(str)
	str == "1"
end

p calculate("010", "amazing")