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Fix calendar crash when yearmatchgroup regex does not match #4239

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Merged
KristjanESPERANTO merged 2 commits into from
Aug 29, 2026
+6 −1
Merged

Fix calendar crash when yearmatchgroup regex does not match #4239

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3cab550
Fix calendar title transform when regex does not match
Antra Aug 29, 2026
1cf7be6
Add regression test for calendar title transform
Antra Aug 29, 2026
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2 changes: 1 addition & 1 deletion defaultmodules/calendar/calendarutils.js
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Original file line number Diff line number Diff line change
Expand Up @@ -109,7 +109,7 @@ const CalendarUtils = {
let replacement = transform.replace;
if (typeof transform.yearmatchgroup !== "undefined" && transform.yearmatchgroup !== "") {
const yearmatch = [...title.matchAll(needle)];
if (yearmatch[0].length >= transform.yearmatchgroup + 1 && yearmatch[0][transform.yearmatchgroup] * 1 >= 1900) {
if (yearmatch.length > 0 && yearmatch[0].length >= transform.yearmatchgroup + 1 && yearmatch[0][transform.yearmatchgroup] * 1 >= 1900) {
const calcage = new Date().getFullYear() - yearmatch[0][transform.yearmatchgroup] * 1;
const searchstr = `$${transform.yearmatchgroup}`;
replacement = replacement.replace(searchstr, calcage);
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