== Testingcalendar ==
* <nowiki>{{#invoke:Sandbox/RexxS/Calendar widget |isleap |2000calendar}}</nowiki> → {{#invoke:Sandbox/RexxS/Calendar widget |isleap |2000calendar}}
* <nowiki>{{#invoke:Sandbox/RexxS/Calendar widget |isleapcalendar |2001}}</nowiki> → {{#invoke:Sandbox/RexxS/Calendar widget |isleapcalendar |2001}}
* <nowiki>{{#invoke:Sandbox/RexxS/Calendar widget |isleapcalendar |2004month=}}</nowiki> → {{#invoke:Sandbox/RexxS/Calendar widget |isleap |2004}}
* <nowiki>{{#invoke:Sandbox/RexxS/Calendar widget |isleap |2019}}</nowiki> → {{#invoke:Sandbox/RexxS/Calendar widget |isleapcalendar |2019month=}}
* <nowiki>{{#invoke:Sandbox/RexxS/Calendar widget |isleapcalendar |2020year=}}</nowiki> → {{#invoke:Sandbox/RexxS/Calendar widget |isleapcalendar |2020year=}}
* <nowiki>{{#invoke:Sandbox/RexxS/Calendar widget |isleapcalendar |2100year=2020}}</nowiki> → {{#invoke:Sandbox/RexxS/Calendar widget |isleap |2100}}
* <nowiki>{{#invoke:Sandbox/RexxS/Calendar widget |isleap}}</nowiki> → {{#invoke:Sandbox/RexxS/Calendar widgetcalendar |isleapyear=2020}}
* <nowiki>{{#invoke:Sandbox/RexxS/Calendar widget |isleapcalendar |month=June |year=}}</nowiki> → {{#invoke:Sandbox/RexxS/Calendar widget |isleap |}}
{{#invoke:Calendar widget |calendar |month=June |year=}}
* <nowiki>{{#invoke:Sandbox/RexxS/Calendar widget |isleap |nineteen sixty-three}}</nowiki> → {{#invoke:Sandbox/RexxS/Calendar widget |isleap |nineteen sixty-three}}
* <nowiki>{{#invoke:Calendar widget |calendar |month=4 |year=}}</nowiki> →
{{#invoke:Calendar widget |calendar |month=4 |year=}}
* <nowiki>{{#invoke:Calendar widget |calendar |month=13 |year=}}</nowiki> →
{{#invoke:Calendar widget |calendar |month=13 |year=}}
* <nowiki>{{#invoke:Calendar widget |calendar |month=Aug |year=}}</nowiki> →
{{#invoke:Calendar widget |calendar |month=Aug |year=}}
* <nowiki>{{#invoke:Calendar widget |calendar |month=Brumaire |year=1793}}</nowiki> →
{{#invoke:Calendar widget |calendar |month=Brumaire |year=1793}}
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