Disable candle-lighting for Gregorian years < 100

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@hebcal/core",
-  "version": "3.17.3",
+  "version": "3.17.4",
   "author": "Michael J. Radwin (https://github.com/mjradwin)",
   "contributors": [
     "Eyal Schachter (https://github.com/Scimonster)",
@@ -86,7 +86,7 @@
     "jsdoc": "^3.6.7",
     "jsdoc-to-markdown": "^7.0.0",
     "nyc": "^15.1.0",
-    "rollup": "^2.48.0",
+    "rollup": "^2.49.0",
     "rollup-plugin-terser": "^7.0.2",
     "tsd-jsdoc": "^2.5.0",
     "ttag-cli": "^1.9.2"

src/candles.spec.js

@@ -440,3 +440,33 @@ test('havdalahDeg', (t) => {
   ];
   t.deepEqual(results, expected);
 });
+
+test('candles-year101', (t) => {
+  const options = {
+    year: 101,
+    noHolidays: true,
+    location: Location.lookup('Boston'),
+    candlelighting: true,
+  };
+  const events = HebrewCalendar.calendar(options);
+  const actual = events.slice(0, 4).map(eventTitleDateTime);
+  const expected = [
+    {date: '0101-01-01', time: '17:16', desc: 'Havdalah'},
+    {date: '0101-01-07', time: '16:16', desc: 'Candle lighting'},
+    {date: '0101-01-08', time: '17:22', desc: 'Havdalah'},
+    {date: '0101-01-14', time: '16:24', desc: 'Candle lighting'},
+  ];
+  t.deepEqual(actual, expected);
+});
+
+test('candles-year99-empty', (t) => {
+  const options = {
+    year: 99,
+    noHolidays: true,
+    location: Location.lookup('Boston'),
+    candlelighting: true,
+  };
+  const events = HebrewCalendar.calendar(options);
+  const expected = [];
+  t.deepEqual(events, expected);
+});

src/hebcal.js

@@ -531,6 +531,10 @@ export const HebrewCalendar = {
     warnUnrecognizedOptions(options);
     const startAbs = startAndEnd[0];
     const endAbs = startAndEnd[1];
+    const startGreg = g.abs2greg(startAbs);
+    if (startGreg.getFullYear() < 100) {
+      options.candlelighting = false;
+    }
     for (let abs = startAbs; abs <= endAbs; abs++) {
       const hd = new HDate(abs);
       const hyear = hd.getFullYear();

src/hebcal.spec.js

@@ -464,6 +464,14 @@ test('molad', (t) => {
 test('year2', (t) => {
   const events = HebrewCalendar.calendar({year: 2});
   t.is(events.length, 80);
+  const events2 = events.slice(0, 3);
+  const actual = events2.map(eventISODateDesc);
+  const expected = [
+    {date: '0002-01-01', desc: 'Rosh Chodesh Sh\'vat'},
+    {date: '0002-01-12', desc: 'Shabbat Shirah'},
+    {date: '0002-01-15', desc: 'Tu BiShvat'},
+  ];
+  t.deepEqual(actual, expected);
 });
 
 test('year0', (t) => {