Bug 33629 Double-quote as character value broken in RC1
There is a series of related bugs under the category of it's really hard to enter a character value containing a double-quote character and when you try it strange things can happen. 1. Single-quote balancing seems not to work at all. When you type a single quote you get a single quote. 2. When you type the character sequence '" the result is '"" (!) 3. When you try to backspace over the extra unwanted " (either the first or the second) both are erased. The only way to get the desired result seems to be to copy and paste the " character. 4. If you try to cut and paste in the ", you can get in some weird mode where the editor thinks a string exists where there is none. I'm still trying to figure out the sequence that produced the following lines: if (c == ''' || c == '"') {" + "} (Leading tabs removed for sake of example.) I only know that the last two " characters were not typed. No doubt another illustration why editor modes are a bad idea.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/java/SmartBracesAutoEditStrategy.java
fSourceRegion.getOffset() + fSourceRegion.getLength() == command.offset &&
			command.length > 0;
	}
	private boolean isClosingBracket(DocumentCommand command) {
		return
			command.offset == fSourceRegion.getOffset() + fSourceRegion.getLength() &&
			command.length <= 1 && "}".equals(command.text); 
	}
	/*
	 * @see org.eclipse.jface.text.IAutoEditStrategy#customizeDocumentCommand(org.eclipse.jface.text.IDocument, org.eclipse.jface.text.DocumentCommand)
	 */
	public void customizeDocumentCommand(IDocument document, DocumentCommand command) {
		try {
			if (!command.doit)
				return;
			if (fSourceRegion != null) {
				
				if (isBackspace(command) || isClosingBracket(command)) {
					
					command.addCommand(fUndoEvent.getOffset(), fUndoEvent.getLength(), fUndoEvent.getText(), fDocumentListener);
					command.owner= fDocumentListener;
					command.doit= false;
					fSourceRegion= null;
					fUndoEvent= null;
				} else if (isDelete(command)) {
					
					command.caretOffset= command.offset;
					command.offset= fUndoEvent.getOffset();
					command.length= fUndoEvent.getLength();
					command.text= fUndoEvent.getText();