How to use the emmet/utils/editor.outputInfo function in emmet

updateTag: function(editor) {
			var info = editorUtils.outputInfo(editor);
			var selCtx = selectionContext(editor, info);

			// show prompt dialog that will update each
			// tag from selection
			prompt.show({
				label: 'Enter Abbreviation',
				editor: editor.editor,
				update: function(abbr) {
					abbr = abbr.trim();
					var tag, replaced;
					var didUpdate = false;
					for (var i = selCtx.length - 1, ctx; i >= 0; i--) {
						ctx = selCtx[i];
						tag = null;

						if (abbr) {

function selectionContext(editor, info) {
		info = info || editorUtils.outputInfo(editor);
		var result = [];
		editor.exec(function(i, sel) {
			var r = range(sel);
			var tag = htmlMatcher.tag(info.content, r.start);
			if (!r.length() && tag) {
				// no selection, use tag pair
				r = utils.narrowToNonSpace(info.content, tag.range);
			}

			var out = {
				selection: r,
				tag: tag,
				caret: r.start,
				syntax: info.syntax,
				profile: info.profile || null,
				counter: i + 1,

expandAbbreviation: function(editor) {
			var info = editorUtils.outputInfo(editor);
			var selCtx = [];
			editor.exec(function(i, sel) {
				var r = range(sel);
				selCtx[i] = {
					selection: r,
					caret: r.start,
					syntax: info.syntax,
					profile: info.profile || null,
					counter: i + 1,
					contextNode: actionUtils.captureContext(editor, r.start)
				};
			});

			return this.wrapWithAbbreviation(editor, selCtx);
		},