henhouse.converter source code

1 module henhouse.converter;
2 
3 import uni = std.uni;
4 
5 
6 /**
7  * Converts a single word to its "chicken" representation.
8  *
9  * Params:
10  *      original    string to convert
11  *
12  * Returns:
13  *      converted string
14  */
15 string wordToChicken(string original)
16 {
17     string chicken;
18 
19     for (int i = 0; i < original.length; i++) {
20         if (uni.isLower(original[i])) {
21             chicken ~= "chicken";
22 
23             while ((i + 1 < original.length) && uni.isLower(original[i + 1])) {
24                 i++;
25             }
26 
27             continue;
28         }
29 
30         if (uni.isUpper(original[i])) {
31             if ((i + 1 == original.length) || uni.isLower(original[i + 1])) {
32                 chicken ~= "Chicken";
33 
34                 while ((i + 1 < original.length) && uni.isLower(original[i + 1])) {
35                     i++;
36                 }
37 
38                 continue;
39             }
40 
41             if ((i + 1 == original.length) || uni.isUpper(original[i + 1])) {
42                 chicken ~= "CHICKEN";
43 
44                 while ((i + 1 < original.length) && uni.isUpper(original[i + 1])) {
45                     i++;
46                 }
47             }
48         }
49     }
50 
51     return chicken;
52 }
53 
54 unittest
55 {
56     assert("chicken" == wordToChicken("lowercase"));
57     assert("Chicken" == wordToChicken("Capitalized"));
58     assert("CHICKEN" == wordToChicken("UPPERCASE"));
59 
60     assert("chickenChicken" == wordToChicken("mixedCapitalized"));
61     assert("ChickenChicken" == wordToChicken("MixedCapitalized"));
62     assert("chickenCHICKEN" == wordToChicken("mixedCAPITALIZED"));
63 }