More case insensitivity and additional function highlighting

generate_case_insensitive.py

@@ -0,0 +1,19 @@
+#!/usr/bin/env pypy3
+
+import sys
+import itertools
+
+word = sys.argv[1]
+if " " in word:
+    print("Word must contain only letters in the alphabet.")
+    sys.exit(1)
+
+word_versions = tuple(zip(word.lower(), word.upper()))
+
+capitalization_index_sets = itertools.product((0, 1), repeat=len(word))
+for capitalization_index_set in capitalization_index_sets:
+    combined_word = ""
+    for i, capitalization_index in enumerate(capitalization_index_set):
+        combined_word += word_versions[i][capitalization_index]
+
+    print('"' + combined_word + '"')