View source for Template:Organizations (dis)established in year category header

<includeonly><!--
# The first step is to check whether this is a category page
-->{{Category other<!--
-->|<!-- ############### It is a category ###############################
# So check that it matches the required format: "Organizations established in YYYY" or "Organizations disestablished in YYYY"
-->{{#ifeq: {{#expr:<!--
-->{{#invoke:String|find|{{PAGENAME}}|^Organizations established in %d%d%d%d$|plain=false}} + <!--
-->{{#invoke:String|find|{{PAGENAME}}|^Organizations disestablished in %d%d%d%d$|plain=false}}<!--
-->}}<!--
-->|0<!--
-->|<!-- # Doesn't match
-->{{Error|Invalid page name.<br />[[Template:Orgestcatyear]] is for use only on category pages whose title is of the form {{nowrap|"Organizations established in YYYY"}} or {{nowrap|"Organizations disestablished in YYYY"}}, where YYYY is a 4-digit year (e.g. "1937)". Note that "Organizations" MUST be spelt with the letter Z.}}<!--
-->[[Category:Errors reported by other category header templates]]<!--
-->|<!--
-->{{Orgestcatyear/core<!--
-->|year={{#invoke:String|replace|{{PAGENAME}}|^Organizations (%a+)ed in (%d%d%d%d)$|%2|1|false}}<!--
-->|action={{#invoke:String|replace|{{PAGENAME}}|^Organizations (%a+)ed in (%d%d%d%d)$|%1|1|false}}<!--
-->}}<!--
-->}}<!--
-->|<!-- ############### Not a category ###############################
-->{{Error|This page is not in the [[Wikipedia:Namespace|category namespace]].<br />[[Template:Orgestcatyear]] is for use only on category pages whose title is of the form {{nowrap|"Organizations established in YYYY"}} or {{nowrap|"Organizations disestablished in YYYY"}}, where YYYY is a 4-digit year (e.g. "1937)"}}<!--
-->[[Category:Errors reported by other category header templates]]<!--
-->}}</includeonly><!--
# Note {{CatAutoTOC}} needs to be available whether or not this template page has been transcluded
-->
{{CatAutoTOC}}<!--
--><noinclude><!--
-->{{Documentation}}<!--
--></noinclude>