Editing Template:When pagename is

{{#if:x   <!--Remove surrounding whitespace-->
| <!--Check for match with full pagename-->
  {{{ {{#if:{{{page|}}}| {{{page|}}} | {{FULLPAGENAME}} }}   <!--Has data, or is empty but defined-->
  | <!--Else, are we on a subpage or a basepage?-->
    {{#if:{{#titleparts:{{#if:{{{page|}}}| {{{page|}}} | {{FULLPAGENAME}} }}|0|2}}
    | <!--We are on a subpage, check for match with "User:Somepage/"-->
      {{{ {{#titleparts:{{#if:{{{page|}}}| {{{page|}}} | {{FULLPAGENAME}} }}|1|1}}/
      | <!--Check for match with "Somepage/"-->
        {{{ {{#titleparts:{{#if:{{{page|}}}| {{PAGENAME:{{{page|}}}}} | {{PAGENAME}} }}|1|1}}/
        | <!--Check for match with "/something"-->
          {{{ /{{#titleparts:{{#if:{{{page|}}}| {{{page|}}} | {{FULLPAGENAME}} }}|0|-1}}
          | <!--Check for match with "/somethin*"-->
            {{{ /{{lc: {{padleft:|8| {{#titleparts:{{#if:{{{page|}}}| {{{page|}}} | {{FULLPAGENAME}} }}|0|-1}}# }} }}*
            | <!--Check for match with "/someth*"-->
              {{{ /{{lc: {{padleft:|6| {{#titleparts:{{#if:{{{page|}}}| {{{page|}}} | {{FULLPAGENAME}} }}|0|-1}}# }} }}*
              | <!--Check for match with "/some*"-->
                {{{ /{{lc: {{padleft:|4| {{#titleparts:{{#if:{{{page|}}}| {{{page|}}} | {{FULLPAGENAME}} }}|0|-1}}# }} }}*   <!--Pad with # so "/a" doesn't match "/aaaa*"-->
                | {{{subpage| {{{other|}}} }}}   <!--Respecting empty parameter on purpose-->
                }}}
              }}}
            }}}
          }}}
        }}}
      }}}
    | <!--We are on a basepage, check for match with "Somepage"-->
      {{{ {{#if:{{{page|}}}| {{PAGENAME:{{{page|}}}}} | {{PAGENAME}} }}
      | {{{basepage| {{{other|}}} }}}   <!--Respecting empty parameter on purpose-->
      }}}
    }}   <!--End if, are we on a subpage or a basepage?-->
  }}}
}}<noinclude>

{{pp-template}}
{{documentation}}
<!-- Add categories and interwikis to the /doc subpage, not here! -->
</noinclude>