feat: add "from through" feature #6

Author: FreaKzero

index.js

@@ -48,6 +48,7 @@ const dayParser = (pattern, string) => {
 };
 
 const dateParser = (pattern, string) => {
+  const from = /from\s([0-9]{1,2})\sthrough\s([0-9]{1,2})/.exec(string);
   const full =
     /(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec) ([0-9]{1,2})/.exec(
       string
@@ -83,6 +84,11 @@ const dateParser = (pattern, string) => {
     }
   }
 
+  if (!full && from) {
+    pattern[3] = `${from[1]}-${from[2]}`;
+    pattern[5] = '*';
+  }
+
   return pattern;
 };
 

test.js

@@ -9,7 +9,7 @@ const test = (check, should) => {
   if (expr !== null) {
     const checkexpr = cron.validate(expr);
     if (!checkexpr) {
-      throw new Error('Cron Expression invalid');
+      throw new Error(`Expression invalid - ${expr}`);
     }
   }
   assert.equal(expr, should);
@@ -45,6 +45,12 @@ test(
   '0 30 9 * 1,2,3 1,2,6'
 );
 test('on jan feb every 45 minutes', '0 */45 * * 1,2 *');
+test(
+  'every 15 minutes from 5 through 15 of december and january',
+  '0 */15 * 5-15 1,12 *'
+);
+//test('every week in 15 minute intervals on january',  '0 */15 * */7 1 *');
+//test('every week on january',  '0 0 0 */7 1 *');
 
 if (process.env.TESTWATCH) {
   process.stdout.write('\u001b[3J\u001b[2J\u001b[1J');