Keyboard Maestro macro for natural language dates in TaskPaper 3

TP3 Date From Natural Language.js

(function() {
    'use strict'

    

    function TPContextExpandDates(editor, options) {
	
	function toRx(string) {
        return '(' + string.split(/[ ,]+/).join('|') + ')';
    }

        var selection = editor.selection,
            selectedItems = selection.selectedItems,
			isoVal = null;
            
        editor.outline.groupUndoAndChanges(function() {
            selectedItems.forEach(function(task) {
                for (var prop in task.attributes) {
                    var tag = prop.match(/^data-(?!type)(.*)/);
                    if (tag && tag[0].match(toRx(options.dateTags))) {
                        // item.setAttribute(tag[0], );
                        var tagValue = task.getAttribute(tag[0]);
						console.log(tagValue);
						tagValue = isNaN(tagValue) ? tagValue : tagValue + 'd';
                        isoVal = tagValue ? DateTime.format(tagValue) : null;
                        if (isoVal && isoVal !== 'invalid date') {
							isoVal = isoVal.replace(/([\d\-]+)( .*?)$/,'$1');
                            task.setAttribute(tag[0], isoVal);
                        }
                    }
                }
            });
        });
        editor.moveSelectionToItems(selection);
		// return rx;
    }

   function appIsInstalled(strBundleId) {
       ObjC.import('AppKit');

       return ObjC.unwrap(
           $.NSWorkspace.sharedWorkspace
           .URLForApplicationWithBundleIdentifier(
               strBundleId
           )
           .fileSystemRepresentation
       ) !== undefined;
   }
   
   var strKMEid = "com.stairways.keyboardmaestro.engine",
       kmVars = appIsInstalled(strKMEid) ? Application(strKMEid).variables : {},
       tagRX = (kmVars.dateTags && kmVars.dateTags.value() || 'start due');
        
    var tp = Application("TaskPaper"),
        docs = tp.documents;
    
    if (docs.length) {
        return docs[0].evaluate({
            script: TPContextExpandDates.toString(),
            withOptions: {
                dateTags: tagRX
            }
        });
    }
    
})();