proposals
.put(
"${resource_extension}",
"Only the file's extension, without leading dot. For \"C:\\path\\to\\resource.txt\" this would be \"txt\".");
VariableManager variableManager = Activator.getPluginContext()
.getVariableManager();
Map<String, String> variableNamesWithDescription = variableManager
.getNamesWithDescriptions();
proposals.putAll(variableNamesWithDescription);
new ContentAssistCommandAdapter(text, new TextContentAdapter(),
new StartExplorerContentProposalProvider(proposals), null,
new char[] { '$' }, true);