Bug 126414 [Commands] handlers: Provide help context ids
For commands and handlers to replace actions, they need to be capable of providing help context identifiers. For an example, see OpenResourceHandler in org.eclipse.ui.ide. This help context id will need to be definable through XML and through code.
bundles/org.eclipse.core.commands/src/org/eclipse/core/commands/CommandManager.java
final String idEqualsValue;
			if (commaPosition == -1) {
				
				idEqualsValue = serializedParameters;
			} else {
				
				idEqualsValue = serializedParameters
						.substring(0, commaPosition);
				
				serializedParameters = serializedParameters
						.substring(commaPosition + 1);
			}
			final int equalsPosition = unescapedIndexOf(idEqualsValue, '=');
			final String parameterId;
			final String parameterValue;
			if (equalsPosition == -1) {
				
				parameterId = unescape(idEqualsValue);
				parameterValue = null;
			} else {
				parameterId = unescape(idEqualsValue.substring(0,
						equalsPosition));
				parameterValue = unescape(idEqualsValue
						.substring(equalsPosition + 1));
			}
			for (int i = 0; i < parameters.length; i++) {
				final IParameter parameter = parameters[i];
				if (parameter.getId().equals(parameterId)) {
					paramList.add(new Parameterization(parameter,
							parameterValue));