Help:Transclusion: Difference between revisions

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===Magic words===

[[Help:Magic words|Magic words]] are not examples of transclusion. But some have a similar double curly-bracket syntax and action to transclusion. For example, <syntaxhighlight lang="wikitext" inline>{{FULLPAGENAME}}</syntaxhighlight> renders the [[Wikipedia:Page name|Fullpagename]] of any Wikipedia page. Like templates, some magic words can also take parameters, which are separated using a colon (:); for example <syntaxhighlight lang="wikitext" inline>{{FULLPAGENAME:value}}</syntaxhighlight>.

[[wikipedia:Help:Magic words|Magic words]] are not examples of transclusion. But some have a similar double curly-bracket syntax and action to transclusion. For example, <syntaxhighlight lang="wikitext" inline>{{FULLPAGENAME}}</syntaxhighlight> renders the [[Wikipedia:Page name|Fullpagename]] of any Wikipedia page. Like templates, some magic words can also take parameters, which are separated using a colon (:); for example <syntaxhighlight lang="wikitext" inline>{{FULLPAGENAME:value}}</syntaxhighlight>.

Templates do exist for some magic words, for example [[Template:FULLPAGENAME]]; but these just invoke the related magic word if passing parameters using a vertical bar (|); for example like <syntaxhighlight lang="wikitext" inline>{{FULLPAGENAME|value}}</syntaxhighlight>. But magic words parameters are best passed directly by using a colon, for example like <syntaxhighlight lang="wikitext" inline>{{FULLPAGENAME:value}}</syntaxhighlight>, which bypasses any templates.

===Transclusion modifiers===

As discussed above, with the example <syntaxhighlight lang="wikitext" inline>{{subst:Like}}</syntaxhighlight>, the <code>subst:</code> code alters the transclusion to substitution. This is a ''transclusion modifier'', a type of specialist magic word for altering transclusion in some manner. Another example is <syntaxhighlight lang="wikitext" inline>{{:Notability}}</syntaxhighlight>, where the <code>:</code> (colon character) forces transclusion to the main namespace. There are additional transclusion modifiers such as <code>safesubst:</code>, <code>int:</code>, <code>msg:</code>, <code>msgnw:</code>, and <code>raw:</code>. For more details on their usage, see {{slink|mw:Help:Magic words#Transclusion modifiers}}. Also see the modified commands <code>#section:</code>, <code>#section-x:</code> and <code>#section-h:</code> used for [[Help:Labeled section transclusion|labeled section transclusion]].

As discussed above, with the example <syntaxhighlight lang="wikitext" inline>{{subst:Like}}</syntaxhighlight>, the <code>subst:</code> code alters the transclusion to substitution. This is a ''transclusion modifier'', a type of specialist magic word for altering transclusion in some manner. Another example is <syntaxhighlight lang="wikitext" inline>{{:Notability}}</syntaxhighlight>, where the <code>:</code> (colon character) forces transclusion to the main namespace. There are additional transclusion modifiers such as <code>safesubst:</code>, <code>int:</code>, <code>msg:</code>, <code>msgnw:</code>, and <code>raw:</code>. For more details on their usage, see {{slink|mw:wikipedia:Help:Magic words#Transclusion modifiers}}. Also see the modified commands <code>#section:</code>, <code>#section-x:</code> and <code>#section-h:</code> used for [[Help:Labeled section transclusion|labeled section transclusion]].

==Applications of transclusion==