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| | ===URLENCODE=== | | ===URLENCODE=== |
| − | Converts the text into URL friendly format by replacing spaces with "+": <nowiki>{{urlencode:hello world}}</nowiki> gives {{urlencode:hello world}} | + | Converts the text into URL friendly format by replacing spaces with " ": <nowiki>{{urlencode:hello world}}</nowiki> gives {{urlencode:hello world}} |
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| | ==NS== | | ==NS== |
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| | <code><nowiki>{{ns:project}}</nowiki></code> gives {{ns:project}}. | | <code><nowiki>{{ns:project}}</nowiki></code> gives {{ns:project}}. |
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| − | However <code><nowiki>{{ns:{{SITENAME}}}}</nowiki></code> for <code><nowiki>{{SITENAME}}</nowiki></code>={{SITENAME}} doesn't work, on Meta it has the same effect as <code><nowiki>{{Meta}}</nowiki><code>, calling an existing [[m:Template:Meta|Template:Meta]]. | + | However <code><nowiki>{{ns:{{SITENAME}}}}</nowiki></code> for <code><nowiki>{{SITENAME}}</nowiki></code>={{SITENAME}} doesn't work, on Meta it has the same effect as <code><nowiki>{ |
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| − | Similarly <code><nowiki>{{ns:{{ns:8}} talk}}</nowiki></code> fails without underscore: {{ns:{{ns:8}} talk}}. See [[Help:Variable]] for more canonical names like "'''<tt>project</tt>'''" and "'''<tt>talk</tt>'''".
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| − | | |
| − | === NS:1 ===
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| − | <code><nowiki>{{ns:{{ns:0}}_talk}}</nowiki></code> fails: {{ns:{{ns:0}} talk}}. The canonical name for the talk namespace of articles is "'''<tt>talk</tt>'''" and not "'''<tt>_talk</tt>'''". But the following constructs work:
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| − | <code><nowiki>{{ns:01}}</nowiki></code> gives {{ns:01}},
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| − | <code><nowiki>{{ns:+1}}</nowiki></code> gives {{ns:+1}},
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| − | <code><nowiki>{{ns:TALK}}</nowiki></code> gives {{ns:TALK}}, and
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| − | <code><nowiki>{{ns:{{ns:1}}}}</nowiki></code> gives also {{ns:{{ns:1}}}}. Space sensitive, but not case sensitive.
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| − | | |
| − | === NS:0 ===
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| − | <code><nowiki>'''#{{ns:0}}#'''</nowiki></code> gives '''#{{ns:0}}#''', an empty string. This is often handy, less vulnerable than a template '''void''' or similar,
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| − | and less cryptic than [[Help:magic words|magic words]] like <tt><nowiki>__END__</nowiki></tt>.
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| − | | |
| − | In constructs like <code><nowiki>{{ {{#if: {{{T|}}} | {{{T}}} | ns:0}} }}</nowiki></code>, where parameter '''T''' is
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| − | normally the name of a template to be evaluated, but can be undefined or empty, <code><nowiki>{{ns:0}}</nowiki></code>
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| − | is then a clean empty string. Without it <code><nowiki>{{}}</nowiki></code> would result in {{}}.
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| − | | |
| − | Please note that <code><nowiki>{{ns:{{ns:0}}}}</nowiki></code> fails: {{ns:{{ns:0}}}}. NS cannot handle an empty <code><nowiki>{{ns:0}}</nowiki></code> argument.
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| − | ==== {{ns:0}} ====
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| − | An empty section title like above is obtained using, in this case, <code><nowiki>==== {{ns:0}} ====</nowiki></code>. This is dubious, but arguably better than using the same trick to get invisble section headers twice on a page. At least <tt><nowiki>/* {{ns:0}} */</nowiki></tt> makes sense in the edit history, if there's only one section using this particular trick.
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| − | As shown in the table of contents this and similar tricks result in non-functional links. In conjunction with <code><nowiki>__NOTOC__</nowiki></code> it's less harmful, and maybe useful to get edit links for invisible sections with categories and interlanguage links. Other possibilities for different ''invisible'' section headers:
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| − | # <code><nowiki>=== __NOTOC__ ===</nowiki></code>
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| − | # <code><nowiki>=== ===</nowiki></code>
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| − | # <code><nowiki>=== &nbsp; ===</nowiki></code>
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| − | # <code><nowiki>=== &#160; ===</nowiki></code>
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| − | == #language: ==
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| − | <code>{{#language: ''code''}}</code> gives the language name of selected RFC 3066 language codes, otherwise it returns the input value as is. For a complete list see the [http://www.iana.org/assignments/language-subtag-registry IANA registry].
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| − | :{{evaldemo|#language:da}}
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| − | :{{evaldemo|#language:fo}}
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| − | :{{evaldemo|#language:zh}}
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| − | :{{evaldemo|#language:zh-min-nan}}
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| − | :{{evaldemo|#language:ang}}
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| − | :{{evaldemo|#language:tlh}} (missing, incomplete list)
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| − | :{{evaldemo|#language:frr}} (missing, introduced 2006)
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| − | :{{evaldemo|#language:mw}} (no language code as of 2006)
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| − |
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| − | This function will replace {{tim|n local}} and some of the [[Special:Prefixindex/Template:Lang name -]] templates.
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| − | For actually supported alpha2 and alpha3 codes see {{tim|sttnw}}, the 27*26*26 template calls may take some time.
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| − | | |
| − | ==General features==
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| − | The parameter value can be an expression involving (possibly multilevel): concatenation, applying a template, parser function, or colon function, or using a variable.
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| − | | |
| − | Examples:
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| − | *using {{tim|tc}}, <nowiki>{{uc:{{tc}}}}</nowiki> gives {{uc:in}}.
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| − | *using {{tim|x3}}, <nowiki>{{#expr:{{x3|1}}/3}}</nowiki> gives {{#expr:111/3}}
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| − | | |
| − | ===Substitution===
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| − | | |
| − | :''See also: '''[[Help:Substitution]]'''.''
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| − | | |
| − | Applying "subst:" to a colon function works:
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| − | <nowiki>{{subst:LC:AbC}}</nowiki> gives abc.
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| − | | |
| − | Note that unless a technique like [[Help:Substitution#Optional substitution|optional recursive substitution]]
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| − | is used, substituting a template which uses a colon function does not replace that colon function with its result.
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| − | | |
| − | ===See also===
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| − | *[[Help:Magic words]]
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| − | *[[ParserFunctions]]
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| − | *{{tim|colon function}}
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| − | *{{tim|wikivar}}
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| − | | |
| − | {{h:f|langs=|enname=colon function}}
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A "colon function" is a predefined template with at least one unnamed parameter, separated from the function name by a colon ":" (unlike ordinary templates using "|"). Thus the syntax is:
- {{ function name : parameter value }}
The function name is not case-sensitive. Further parameters (if any, depending on the function) are separated by "|".
Formatting
LC
Makes a text lowercase.
{{lc:AbCdEf}} gives abcdef.
{{lc:Ä Β Ç}} gives ä β ç, expected ä β ç.
UC
Makes a text uppercase.
{{uc:AbCdEf}} gives ABCDEF.
{{uc:ä β ß}} gives Ä Β ß, expected: Ä Β SS. Don't expect too much.
LCFIRST
Makes the first character lowercase: {{lcfirst:Ab Cd}} gives ab Cd.
UCFIRST
Makes the first character uppercase: {{ucfirst:aB cD}} gives AB cD.
URLENCODE
Converts the text into URL friendly format by replacing spaces with " ": {{urlencode:hello world}} gives hello+world
NS
Gives the namespace name for a given namespace number or name:
{{ns:4}} gives lensowiki.
{{ns:{{ns:12}}_talk}} gives Help talk.
{{ns:project}} gives lensowiki.
However {{ns:{{SITENAME}}}} for {{SITENAME}}=lensowiki doesn't work, on Meta it has the same effect as <nowiki>{
