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text_processing2.py

@@ -1,5 +1,5 @@
 #######################
-# Test Processing II  #
+# Test Processing II  #11
 #######################
 
 
@@ -28,7 +28,14 @@ def digits_to_words(input_string):
             >>> tp2.digits_to_words(digits_str2)
             'three one four one five'
     """
-    digit_string = None
+    digit_string = ""
+    digit_table = {"1": "one", "2": "two", "3": "three", "4": "four", "5": "five", "6": "six", "7": "seven", "8": "eight", "9": "nine", "0": "zero"}
+
+    for string in input_string :
+        if string.isdigit():
+            digit_string += digit_table[string] + " "
+    digit_string = digit_string[:-1]
+
     return digit_string
 
 
@@ -64,5 +71,22 @@ def to_camel_case(underscore_str):
             >>> tp2.to_camel_case(underscore_str3)
             "alreadyCamel"
     """
-    camelcase_str = None
+    camelcase_str = ""
+    underscore_str = underscore_str.strip("_")
+
+    if underscore_str.count("_") > 0 :
+        underscore_str = underscore_str.lower()
+        no_undersocre_strings = underscore_str.split("_")
+
+        if no_undersocre_strings != "":
+            for i, word in enumerate(no_undersocre_strings):
+                if word != "":
+                    for j, string in enumerate(word):
+                        if i !=0 and j == 0:
+                            string = string.upper()
+                        camelcase_str += string
+
+    else:
+        camelcase_str = underscore_str
+
     return camelcase_str