AEM using Granite Render Conditions

.content.xml

<items jcr:primaryType="nt:unstructured">
    <widgetAlways
        jcr:primaryType="nt:unstructured"
        sling:resourceType="granite/ui/components/foundation/form/textfield"
        fieldLabel="This always shows"
        name="./widgetAlways"/>
    <widgetHeaderChrome
        jcr:primaryType="nt:unstructured"
        sling:resourceType="granite/ui/components/foundation/form/textfield"
        fieldLabel="This only shows when header &quot;User-Agent&quot; contains &quot;chrome&quot;"
        name="./widgetHeaderChrome">
        <granite:rendercondition
            jcr:primaryType="nt:unstructured"
            sling:resourceType="granite/ui/components/coral/foundation/renderconditions/simple"
            expression="${granite:containsIgnoreCase(header['User-Agent'], 'chrome')}"/>
    </widgetHeaderChrome>
    <widgetHeaderFirefox
        jcr:primaryType="nt:unstructured"
        sling:resourceType="granite/ui/components/foundation/form/textfield"
        fieldLabel="This only shows when header &quot;User-Agent&quot; contains &quot;firefox&quot;"
        name="./widgetHeaderFirefox">
        <granite:rendercondition
            jcr:primaryType="nt:unstructured"
            sling:resourceType="granite/ui/components/coral/foundation/renderconditions/simple"
            expression="${granite:containsIgnoreCase(header['User-Agent'], 'firefox')}"/>
    </widgetHeaderFirefox>
    <widgetHeaderOther
        jcr:primaryType="nt:unstructured"
        sling:resourceType="granite/ui/components/foundation/form/textfield"
        fieldLabel="This only shows when header &quot;User-Agent&quot; does not contain &quot;chrome&quot; or  &quot;firefox&quot;"
        name="./widgetHeaderOther">
        <granite:rendercondition
            jcr:primaryType="nt:unstructured"
            sling:resourceType="granite/ui/components/coral/foundation/renderconditions/simple"
            expression="${!granite:containsIgnoreCase(header['User-Agent'], 'chrome') and !granite:containsIgnoreCase(header['User-Agent'], 'firefox')}"/>
    </widgetHeaderOther>
    <widgetSuffix
        jcr:primaryType="nt:unstructured"
        sling:resourceType="granite/ui/components/foundation/form/textfield"
        fieldLabel="This only shows with suffix &quot;/foo/bar&quot;"
        name="./widgetSuffix">
        <granite:rendercondition
            jcr:primaryType="nt:unstructured"
            sling:resourceType="granite/ui/components/coral/foundation/renderconditions/simple"
            expression="${granite:containsIgnoreCase(requestPathInfo.suffix, '/foo/bar')}"/>
    </widgetSuffix>
    <widgetSelector
        jcr:primaryType="nt:unstructured"
        sling:resourceType="granite/ui/components/foundation/form/select"
        fieldLabel="This only shows with selector &quot;bar&quot;"
        name="./widgetSelector">
        <items jcr:primaryType="nt:unstructured">
            <alpha
                jcr:primaryType="nt:unstructured"
                text="alpha"
                value="alpha"/>
            <bravo
                jcr:primaryType="nt:unstructured"
                text="bravo"
                value="bravo"/>
        </items>
        <granite:rendercondition
            jcr:primaryType="nt:unstructured"
            sling:resourceType="granite/ui/components/coral/foundation/renderconditions/simple"
            expression="${requestPathInfo.selectorString == 'bar'}"/>
    </widgetSelector>
    <widgetSelectorNotEmpty
        jcr:primaryType="nt:unstructured"
        sling:resourceType="granite/ui/components/foundation/form/textfield"
        fieldLabel="This shows with any selector string"
        name="./widgetSelectorNotEmpty">
        <granite:rendercondition
            jcr:primaryType="nt:unstructured"
            sling:resourceType="granite/ui/components/coral/foundation/renderconditions/simple"
            expression="${not empty requestPathInfo.selectorString}"/>
    </widgetSelectorNotEmpty>
    <widgetParam
        jcr:primaryType="nt:unstructured"
        sling:resourceType="granite/ui/components/foundation/form/textfield"
        fieldLabel="This only shows with querystring param &quot;biz=baz&quot;"
        name="./widgetParam">
        <granite:rendercondition
            jcr:primaryType="nt:unstructured"
            sling:resourceType="granite/ui/components/coral/foundation/renderconditions/simple"
            expression="${param.biz == 'baz'}"/>
    </widgetParam>
    <widgetCookie
        jcr:primaryType="nt:unstructured"
        sling:resourceType="granite/ui/components/foundation/form/textfield"
        fieldLabel="This only shows with cookie &quot;bat=qux&quot;"
        name="./widgetCookie">
        <granite:rendercondition
            jcr:primaryType="nt:unstructured"
            sling:resourceType="granite/ui/components/coral/foundation/renderconditions/simple"
            expression="${cookie.bat.value == 'qux'}"/>
    </widgetCookie>
    <widgetPrivilege
        jcr:primaryType="nt:unstructured"
        sling:resourceType="granite/ui/components/foundation/form/textfield"
        fieldLabel="This only shows if you can write to &quot;/etc/workflow/instances&quot;"
        name="./widgetPrivilege">
        <granite:rendercondition
            jcr:primaryType="nt:unstructured"
            sling:resourceType="granite/ui/components/coral/foundation/renderconditions/privilege"
            path="/etc/workflow/instances"
            privileges="jcr:write"/>
    </widgetPrivilege>
    <widgetNotLockedCanModfy
        jcr:primaryType="nt:unstructured"
        sling:resourceType="granite/ui/components/foundation/form/textfield"
        fieldLabel="This only shows when the suffix is not locked and can be modified"
        name="./widgetNotLockedCanModfy">
        <rendercondition
            jcr:primaryType="nt:unstructured"
            sling:resourceType="granite/ui/components/foundation/renderconditions/and">
            <not
                jcr:primaryType="nt:unstructured"
                sling:resourceType="granite/ui/components/foundation/renderconditions/not">
                <islocked
                    jcr:primaryType="nt:unstructured"
                    sling:resourceType="cq/gui/components/renderconditions/islocked"
                    path="${requestPathInfo.suffix}"/>
            </not>
            <canmodify
                jcr:primaryType="nt:unstructured"
                sling:resourceType="cq/gui/components/renderconditions/canmodify"
                path="${requestPathInfo.suffix}"/>
        </rendercondition>
    </widgetNotLockedCanModfy>
    <widgetCustomRenderConditionWeekend
        jcr:primaryType="nt:unstructured"
        sling:resourceType="granite/ui/components/foundation/form/textfield"
        fieldLabel="This only shows on weekends"
        name="./widgetCustomRenderConditionWeekend">
        <granite:rendercondition
            jcr:primaryType="nt:unstructured"
            sling:resourceType="renderconditiondemo/components/renderconditions/day"
            days="[Sunday,Saturday]"/>
    </widgetCustomRenderConditionWeekend>
    <widgetCustomRenderConditionWeekday
        jcr:primaryType="nt:unstructured"
        sling:resourceType="granite/ui/components/foundation/form/textfield"
        fieldLabel="This only shows on weekdays"
        name="./widgetCustomRenderConditionWeekday">
        <granite:rendercondition
            jcr:primaryType="nt:unstructured"
            sling:resourceType="renderconditiondemo/components/renderconditions/day"
            days="[Monday,Tuesday,Wednesday,Thursday,Friday]"/>
    </widgetCustomRenderConditionWeekday>
    <widgetCustomRenderConditionHasProperty
        jcr:primaryType="nt:unstructured"
        sling:resourceType="granite/ui/components/foundation/form/textfield"
        fieldLabel="This only shows if &quot;/content/renderconditiondemo/en/jcr:content/par/text&quot; has property &quot;text&quot;"
        name="./widgetCustomRenderConditionHasProperty">
        <granite:rendercondition
            jcr:primaryType="nt:unstructured"
            sling:resourceType="renderconditiondemo/components/renderconditions/hasProperty"
            resourcePath="${requestPathInfo.suffix}"
            propertyName="text"/>
    </widgetCustomRenderConditionHasProperty>
</items>

do you know how to use regular expression in granite rendercondition

do you know how to use regular expression in granite rendercondition

See this tutorial for help on how to use advanced logic in render conditions: https://levelup.gitconnected.com/aem-creating-custom-granite-render-conditions-28a21958f420