private void reverseChangeLog() throws InvalidOperationException {
Deque<Operation> operations = new LinkedList<>(this.changeLog);
while (!operations.isEmpty()) {
Operation operation = operations.pop();
if (!TokenHook.TokenType.Word.equals(operation.tokenType)) {
Operation inverse = operation.getInverse();
Collection<Operation> c = new LinkedList<>();
c.add(inverse);
this.applyOperations(c, false);
}
}
}
protected void applyOperations(Collection<Operation> operations, boolean save)
throws InvalidOperationException {
if (this.compiled) {
throw new IllegalStateException("XMLEditableString already compiled");
}
for (Operation operation : operations) {
int operationEndIndex = operation.startIndex + operation.length;
operation.originalString =
this.currentString.substring(operation.startIndex, operationEndIndex);
int delta = operation.lengthNewString - operation.length;
if (delta != 0) {
for (TokenHook hook : this.tokens) {
int hookLastEditedIndex = hook.startIndex + hook.length - 1;
if (hook.startIndex >= operationEndIndex) {
hook.startIndex += delta;
} else if (hook.startIndex > operation.startIndex) {
throw new InvalidOperationException(operation, hook);
} else if (hook.startIndex == operation.startIndex && operation.length > hook.length) {
throw new InvalidOperationException(operation, hook);
} else if (hook.startIndex == operation.startIndex && operation.length < hook.length) {
hook.length += delta;
} else if (hook.startIndex == operation.startIndex) {
hook.length = operation.lengthNewString;
} else if (hookLastEditedIndex >= operationEndIndex) {
hook.length += delta;
} else if (hookLastEditedIndex >= operation.startIndex) {
throw new InvalidOperationException(operation, hook);
} else if (hookLastEditedIndex < operation.startIndex) {
// Do nothing
} else {
throw new InvalidOperationException(operation, hook, "Unexpected situation");
}
}
}
if (TokenHook.TokenType.XML.equals(operation.tokenType)) {
for (TokenHook hook : this.xml) {
int hookLastEditedIndex = hook.startIndex + hook.length - 1;
if (hook.startIndex >= operationEndIndex) {
hook.startIndex += delta;
} else if (hook.startIndex > operation.startIndex) {
throw new InvalidOperationException(operation, hook);
} else if (hook.startIndex == operation.startIndex && operation.length > hook.length) {
throw new InvalidOperationException(operation, hook);
} else if (hook.startIndex == operation.startIndex && operation.length < hook.length) {
hook.length += delta;
} else if (hook.startIndex == operation.startIndex) {
hook.length = operation.lengthNewString;
} else if (hookLastEditedIndex >= operationEndIndex) {
hook.length += delta;
} else if (hookLastEditedIndex >= operation.startIndex) {
throw new InvalidOperationException(operation, hook);
} else if (hookLastEditedIndex < operation.startIndex) {
// Do nothing
} else {
throw new InvalidOperationException(operation, hook, "Unexpected situation");
}
}
}
if (!TokenHook.TokenType.Word.equals(operation.tokenType)) {
this.currentString.replace(operation.startIndex, operationEndIndex, operation.newString);
}
if (save) {
if (operation.tokenType != null) {
if (TokenHook.TokenType.XML.equals(operation.tokenType)) {
TokenHook hook =
new TokenHook(operation.startIndex, operation.lengthNewString, operation.tokenType);
this.xml.add(hook);
} else {
if (this.tokenMask == null) {
this.tokenMask = new TokenMask(this.currentString.length());
}
this.tokenMask.setToken(operation.startIndex, operation.lengthNewString);
}
}
this.changeLog.push(operation);
}
}
}