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+--Homework 5, Alexander Pickering (amp215@pitt.edu)
+--
+-- Moonscript!
+-- $ apt-get install lua5.3 lua5.3-dev luarocks
+-- $ luarocks install moonscript
+-- 
+-- You can then run this file with
+-- $ moon hw5.moon
+
+accept_input = io.read
+
+--seperate things that are one or more non-space characters
+--https://www.lua.org/manual/5.3/manual.html#6.4.1
+split_string = (s) -> [x for x in string.gmatch(s,"(%S+)")] 
+
+--apply string.upper() to the first character in a word
+capitalize_word = (word) -> string.gsub(word,"^(.)",string.upper)
+
+--uppercase words in an array
+uppercase_words = (array) ->
+	[capitalize_word(word) for word in *array] 
+
+--print all the words in an array
+print_words = (array) ->
+	for word in *array do
+		print(word)
+
+--Built in sorting!
+sort_words = table.sort
+
+--If a function has no arguments, it can be called using the ! operator, instead of empty parentheses. The ! invocation is the preferred way to call functions with no arguments.
+sentence = accept_input!
+
+words = split_string(sentence)
+words = uppercase_words(words)
+sort_words(words)
+
+print_words(words)