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1 package jester;
2
3 public class SimpleIntCodeMangler extends SimpleCodeMangler {
4 public SimpleIntCodeMangler(ClassSourceCodeChanger sourceCodeSystem) {
5 super(sourceCodeSystem);
6 }
7 static int charAsInt(char c) {
8 return c - '0';
9 }
10 String  incremented(int i) {
11 if (i == 9) {
12 return "0";
13 }
14 return String.valueOf(i + 1);
15 }
16 int indexOfNumber(IgnoreListDocument s) {
17 int startIndex = getIndexOfLastChange() == -1 ? 0 : getIndexOfLastChange() + 1;
18 for (int index = startIndex; index < s.length(); index++) {
19 char characterToCheck = s.charAt(index);
20 if (Character.isDigit(characterToCheck)){
21 if(index > 0){
22 char precedingCharacter = s.charAt(index - 1);
23 boolean ignoreThisBecauseItIsEitherWrongToMutateOrTheNumberHasAlreadyBeenMutated = Character.isLetterOrDigit(precedingCharacter);
24 if(ignoreThisBecauseItIsEitherWrongToMutateOrTheNumberHasAlreadyBeenMutated){
25 continue;
26 }
27 }
28 return index;
29 }
30 }
31 return -1;
32 }
33 boolean makeSomeChangeToFileSource() throws SourceChangeException {
34 int index = indexOfNumber(getOriginalContents());
35 if (index == -1) {
36 return false;
37 }
38
39 char valueCharacterChangedFrom = getOriginalContents().charAt(index);
40 int originalNumber = charAsInt(valueCharacterChangedFrom);
41 String valueCharacterChangedTo = incremented(originalNumber);
42
43 return makeChange(index, String.valueOf(valueCharacterChangedFrom), valueCharacterChangedTo);
44 }
45 } |
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