Add support for threshold dates in filter query expressions (#197)

* clean out the non-source file filterlang.mjs which should not be in repo

* add filter query support for threshold dates

* support ISO dates with single digit month, day and intervals with no number, just unit

* if there are command-line args, use first one as todo file name

* weisserd's fix to sugar due date extension to force future due dates

* handle t: (threshold date) tag in recurrences

.gitignore

@@ -23,3 +23,4 @@ package-lock.json
 .vscode/
 .stylelintrc.json
 src/css/
+src/js/filterlang.mjs

src/js/datePicker.mjs

@@ -2,7 +2,7 @@
 import { translations, userData } from "../render.js";
 import { _paq } from "./matomo.mjs";
 import { resizeInput } from "./form.mjs";
-import { RecExtension, SugarDueExtension } from "./todotxtExtensions.mjs";
+import { RecExtension, SugarDueExtension, ThresholdExtension } from "./todotxtExtensions.mjs";
 import "../../node_modules/jstodotxt/jsTodoExtensions.js";
 import "../../node_modules/jstodotxt/jsTodoTxt.js";
 import Datepicker from "../../node_modules/vanillajs-datepicker/js/Datepicker.js";
@@ -21,7 +21,7 @@ datePickerInput.addEventListener("changeDate", function (e) {
   // we only update the object if there is a date selected. In case of a refresh it would throw an error otherwise
   if(e.detail.date) {
     // generate the object on what is written into input, so we don't overwrite previous inputs of user
-    let todo = new TodoTxtItem(document.getElementById("modalFormInput").value, [ new SugarDueExtension(), new HiddenExtension(), new RecExtension() ]);
+    let todo = new TodoTxtItem(document.getElementById("modalFormInput").value, [ new SugarDueExtension(), new HiddenExtension(), new RecExtension(), new ThresholdExtension() ]);
     todo.due = new Date(e.detail.date);
     todo.dueString = new Date(e.detail.date.getTime() - (e.detail.date.getTimezoneOffset() * 60000 )).toISOString().split("T")[0];
     // if suggestion box was open, it needs to be closed
@@ -53,7 +53,7 @@ const datePicker = new Datepicker(datePickerInput, {
   }
 });
 document.querySelector(".datepicker .clear-btn").onclick = function() {
-  let todo = new TodoTxtItem(document.getElementById("modalFormInput").value, [ new SugarDueExtension(), new HiddenExtension(), new RecExtension() ]);
+  let todo = new TodoTxtItem(document.getElementById("modalFormInput").value, [ new SugarDueExtension(), new HiddenExtension(), new RecExtension(), new ThresholdExtension() ]);
   todo.due = undefined;
   todo.dueString = undefined;
   document.getElementById("modalFormInput").value = todo.toString();