查看“模板:Namespace detect”的源代码

{{#switch:
  {{lc:               <!--Lower case the result-->
    <!--If no or empty "demospace" parameter then detect namespace-->
    {{#if:{{{demospace|}}} 
    | {{{demospace}}}
    | {{#if:{{{page|}}} 
      | <!--Detect the namespace in the "page" parameter-->
        {{#ifeq:{{NAMESPACE:{{{page}}} }}|{{TALKSPACE:{{{page}}} }}
        | talk
        | {{SUBJECTSPACE:{{{page}}} }} 
        }}
      | <!--No "demospace" or "page" parameters, so detect actual namespace-->
        {{#ifeq:{{NAMESPACE}}|{{TALKSPACE}}
        | talk
        | {{SUBJECTSPACE}} 
        }}
      }}
    }}
  }}
<!-- Only one of the lines below will be executed -->
<!-- Respecting empty parameters on purpose -->
| main        <!--"demospace=main" or {{SUBJECTSPACE}}={{ns:0}}=""-->
|           = {{{main| {{{other|}}} }}}
| talk      = {{{talk| {{{other|}}} }}}
| user      = {{{user| {{{other|}}} }}}
| wikipedia = {{{wikipedia| {{{other|}}} }}}
| file
| image     = {{{file| {{{image| {{{other|}}} }}} }}}
| mediawiki = {{{mediawiki| {{{other|}}} }}}
| template  = {{{template| {{{other|}}} }}}
| help      = {{{help| {{{other|}}} }}}
| category  = {{{category| {{{other|}}} }}}
| portal    = {{{portal| {{{other|}}} }}}
| book      = {{{book| {{{other|}}} }}}
| other
| #default  = {{{other|}}}   <!--"demospace=other" or a new namespace-->

}}<!--End switch--><noinclude>

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