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/javaeditor/CompilationUnitEditor.java
}
			}
			
			switch (event.character) {	
			case '\b': {
				Position p= manager.getFirstPosition();	
				if (p.offset == offset && p.length == length)
					return new ExitFlags(0, false);
				else
					return null;
			}
			case '\n':
			case '\r':
				return new ExitFlags(LinkedPositionUI.COMMIT, true);
				
			default:
				return null;
			}						
		}
		private boolean isMasked(int offset) {
			IDocument document= getSourceViewer().getDocument();
			try {
				return fEscapeCharacter == document.getChar(offset - 1);
			} catch (BadLocationException e) {
			}
			return false;
		}
	};
	
	private static class BracketLevel {