Bug 113159 CUEditor won't let me insert just one TAB
Given the following code: Pattern pattern = selected ? new Pattern(null,...) : new Pattern(nul,...); <<CARET>>g.setBackgroundPattern(pattern); I cannot insert a single TAB at the Caret location. typing TAB inserts two TABs. BACKSPACE deletes both.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/actions/IndentAction.java
wsStart= offset + slashes;
				
				StringBuffer computed= indenter.computeIndentation(offset);
				int tabSize= getTabSize();
				while (slashes > 0 && computed.length() > 0) {
					char c= computed.charAt(0);
					if (c == '\t')
						if (slashes > tabSize)
							slashes-= tabSize;
						else
							break;
					else if (c == ' ')
						slashes--;
					else break;
					
					computed.deleteCharAt(0);
				}
				
				indent= document.get(offset, wsStart - offset) + computed;
				
			}
		} 
		
		
		if (indent == null) {
			StringBuffer computed= indenter.computeIndentation(offset);
			if (computed != null)
				indent= computed.toString();
			else