Ruby/String/split
Материал из Wiki.crossplatform.ru
Версия от 17:10, 26 мая 2010; (Обсуждение)
Convert a string to a hash
text = "The rain in Spain falls mainly in the plain." word_count_hash = Hash.new 0 p word_count_hash text.split(/\W+/).each { |word| word_count_hash[word.downcase] += 1 } p word_count_hash # => {"rain"=>1, "plain"=>1, "in"=>2, "mainly"=>1, "falls"=>1, # "the"=>2, "spain"=>1}
Paragraphs counter by split method
text = %q{ This is a test of paragraph one. This is a test of paragraph two. This is a test of paragraph three. } puts text.split(/\n\n/).length
split a string into multiple pieces
puts "Short sentence. Another. No more.".split(/\./).inspect
Split a string, reverse the sequence and append them again
s = "order. wrong the in are words These" s.split(/(\s+)/).reverse!.join("") # => "These words are in the wrong order."
split method can split on newlines, or multiple characters at once, to get a cleaner result
puts "Words with lots of spaces".split(/\s+/).inspect
Split one by one
"0123456789".split # => ["0123456789"] "0123456789".split( // ) # => ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"]
Splitting Strings into Arrays with scan
puts "This is a test".scan(/\w/).join(",")
Split with by one or more space
"Three little words".split(/\s+/) # => ["Three", "little", "words"]
