Editing Help/Links (section)

== Piped links == <!--T:158-->
</translate>
<translate><!--T:159--> A '''piped link''' is an internal [[<tvar name=1>Special:MyLanguage/Help:Link</tvar>|link]] or [[<tvar name=2>Special:MyLanguage/Help:Interwiki linking</tvar>|interwiki link]] where the 'target page name' of the link and its 'label' are both specified.</translate>
<translate><!--T:160--> This is useful in cases where the user wants values of 'target page name' and 'label' to be different.</translate>
<translate><!--T:161--> This also enables linking a contextually relevant word or phrase within the text of a page rather than using the generic value "see also".</translate>
<translate><!--T:162--> The wording does not need to match the name of the target page.</translate>
<translate><!--T:163--> Depending on the [[<tvar name=1>Special:MyLanguage/Help:Preferences</tvar>|preferences]] set for the current user and a supported browser, you can still see the link target: when you hover your cursor over the link, the name shows up in a pop-up window and is also shown in the status bar.</translate>

<translate>
<!--T:164-->
For example:
</translate>
<pre><nowiki>[[coffeehouse setup|Get Piping Hot Coffee Here!]]</nowiki></pre>
<translate><!--T:347--> will show:</translate> [[coffeehouse setup|Get Piping Hot Coffee Here!]]

<translate><!--T:165--> Let's take another example: <nowiki>[[help:Piped link|piped link]]</nowiki> will be displayed as [[help:Piped link|piped link]].</translate> 
<translate><!--T:166--> This can be done when context makes it clear that the page being linked to is in the help namespace.</translate>
<translate><!--T:167--> The piped link is a better way of doing this, rather than mistakenly linking to [[piped link]] which might be a disambiguation page or not exist.</translate>

<translate><!--T:168--> Fun Fact: The term ''piped'' refers to the use of the pipe character "<tvar name="1">|</tvar>", which in this context is used to separate the more descriptive description from the actual name of the linked page.</translate>
<translate><!--T:169--> The Pipe character was named after an alternative use of it; see [[w:en:Pipe (computing)|Pipe (computing)]].</translate>

<translate>
===Using a redirect as an alternative=== <!--T:170-->
</translate>
<translate><!--T:171--> An alternative way is to use [[<tvar name=1>Special:MyLanguage/Help:Redirect</tvar>|redirect pages]].</translate>
<translate><!--T:172--> To create <tvar name="1">[[Get Piping Hot Coffee Here!]]</tvar>, use <tvar name="2"><nowiki>[[Get Piping Hot Coffee Here!]]</nowiki></tvar> and make it redirect to [[coffeehouse setup]] (please note: unlike above, what pops up when you point at the link, depending on your browser's support, is the text that is already shown).</translate>

<translate><!--T:173--> It is convenient if the redirect is already there or will also be of use elsewhere. However, there are a few drawbacks.</translate>

*<translate><!--T:174--> the popup does not show the destination page</translate>
*<translate><!--T:175--> "[[<tvar name=1>Special:MyLanguage/Help:Related changes</tvar>|Related changes]]" shows the changes in the ''redirect page'' not the redirect target</translate>
*<translate><!--T:176--> the redirect message that is shown on the target page slightly clutters it</translate>

<translate><!--T:177--> Using a piped link and a redirect together, it is possible to provide information in the hover box that is not the name of the linked page, for example, the value of a unit in terms of other units.</translate>
<translate><!--T:178--> In that case, it is possible to make a page whose page name is the information that you'd like in the link title, and which redirects to the page with a more appropriate name.</translate>
<translate><!--T:179--> For example, the page [[w:30.48 cm]] redirects to [[w:Foot (unit)]].</translate>

<translate>
===Pipe trick=== <!--T:180-->

<!--T:181-->
If the part after the <tvar name=2><code>|</code></tvar> in a piped link is left empty, it is  to an abbreviated form of the page name on the left, based on the following rules:
</translate>

#<translate><!--T:182--> Any word that is before the '''first colon (:)''', as well as the colon character itself, is removed.</translate> <translate><!--T:183--> This word may or may not be a 'namespace' prefix (such as "Help:") or an 'interwiki' prefix (such as "commons:").</translate> <translate><!--T:184--> If the name of the page is preceded by a colon (:), "first" refers to "first after this".</translate>
#<translate><!--T:185--> If there is some text in the '''parentheses''' at the end, then it will be removed.</translate>
#<translate><!--T:186--> If there are no parentheses, but there is a '''comma''' (,) character, the comma and everything after it is removed.</translate>
#<translate><!--T:187--> Note that this does not work for '''sections/anchors''' as <tvar name="1"><code><nowiki>[[Help:Piped_link#Pipe_trick|]]</nowiki></code></tvar> outputs <tvar name="2">[[Help:Piped_link#Pipe_trick|]].</tvar></translate>

<translate>
<!--T:188-->
Similar to using the three or four tildes when signing on Talk pages, and using 'subst', in a preview, the result shows up in the preview itself, but the conversion in the edit box is not shown yet. Click on the <tvar name=1><code></code></tvar> option to see the change in the wikitext.

=====Examples===== <!--T:189-->
</translate>
* <translate><!--T:190--> <tvar name=1><code><nowiki>[[Help:Template|]]</nowiki></code></tvar> is converted to <tvar name=2><nowiki>[[Help:Template|Template]]</nowiki></tvar>, which is shown as <tvar name=3>[[Help:Template|Template]]</tvar></translate>
* <translate><!--T:191--> <tvar name="1"><code><nowiki>[[Music: My life|]]</nowiki></code></tvar> is converted to <tvar name="2"><nowiki>[[Music: My life| My life]]</nowiki></tvar>, which is shown as <tvar name="3">[[Music: My life| My life]]</tvar> - although "Music:" itself is not a namespace (therefore the space after the colon character is not automatically removed), however, the shortcut works anyway</translate>
* <translate><!--T:192--> <tvar name="1"><code><nowiki>[[w:en:Pipe (computing)|]]</nowiki></code></tvar> is converted to <tvar name="2"><nowiki>[[w:en:Pipe (computing)|en:Pipe]]</nowiki></tvar>, which is shown as <tvar name="3">[[w:en:Pipe (computing)|en:Pipe]]</tvar>.</translate>
* <translate><!--T:193--> <tvar name="1"><code><nowiki>[[commons:Boston, Massachusetts|]]</nowiki></code></tvar> is converted to <tvar name="2"><nowiki>[[commons:Boston, Massachusetts|Boston]]</nowiki></tvar>, which is shown as <tvar name="3">[[commons:Boston, Massachusetts|Boston]]</tvar>.</translate>
*<translate><!--T:194--> <tvar name="1"><code><nowiki>[[w:}|]]</nowiki></code></tvar> ''does not'' give <tvar name="2"><nowiki>[[w:}|}]]</nowiki></tvar>, and calling the template with a value of parameter 1 gives a working link, but in the case of substitution only.</translate>
*<translate><!--T:195--> <tvar name="1"><code><nowiki>[[w:en:|]]</nowiki></code></tvar> ''does not'' give <tvar name="2"><nowiki>[[w:en:|en:]]</nowiki></tvar> and <tvar name="3"><code><nowiki>[[m:|]]</nowiki></code></tvar> ''does not'' give <tvar name="4"><nowiki>[[m:|]]</nowiki></tvar></translate>
*<translate><!--T:196--> <tvar name="1"><code>[[Wikipedia:Village pump (technical)#Pipe trick|]]</code></tvar> is not converted, so it does not give a working link.</translate>
{|
| <translate><!--T:197--> This wikitext</translate>
| <translate><!--T:198--> Produces</translate>
|-
|
<syntaxhighlight lang="wikitext">
* [[project:a (b)|a]]
* [[w:project:a (b)|project:a]]
* [[:de:project:a (b)|project:a]]
* [[wiktionary:project:a (b)|project:a]]
* [[wiktionary:de:project:a (b)|de:project:a]]
* [[wikibooks:project:a (b)|project:a]]
* [[wikiquote:project:a (b)|project:a]]
* [[wikisource:project:a (b)|project:a]]
* [[wikisource:project:a (b)#c|]]
* [[w:en:|en:]] [[w:en:|en:]]
* [[m:|m:]] [[m:|m:]]
</syntaxhighlight>
|
 * [[project:a (b)|a]]
 * [[w:project:a (b)|project:a]]
 * [[:de:project:a (b)|project:a]]
 * [[wiktionary:project:a (b)|project:a]]
 * [[wiktionary:de:project:a (b)|de:project:a]]
 * [[wikibooks:project:a (b)|project:a]]
 * [[wikiquote:project:a (b)|project:a]]
 * [[wikisource:project:a (b)|project:a]]
 * [[wikisource:project:a (b)#c|]]
 * [[w:en:|en:]] [[w:en:|en:]]
 * [[m:|m:]] [[m:|m:]]
|}

<translate>
=====Category tag===== <!--T:199-->

<!--T:200-->
Since the sortkey syntax of the category is similar to a piped link, the pipe trick also works for category tags, even though technically, it is not useful there.

====Limitation==== <!--T:201-->
</translate>
* <translate><!--T:202--> <tvar name="1"><nowiki>[[Help:Lk|]]</nowiki></tvar> using <tvar name="2">[[template:tc]]</tvar> is not converted, so the result is rendered as <tvar name="3">[[Help:Lk|Lk]]</tvar> which is not as a working link.</translate> <translate><!--T:203--> This is because like substitution, the pipe trick expansion occurs before ordinary expansion of the templates, etc.</translate> <translate><!--T:204--> The pipe trick does not work if the linked page includes invalid characters.</translate> <translate><!--T:205--> Therefore, while ordinarily the acceptability of the target page name is assessed after template expansion, the pipe trick expansion judges it before that.</translate> <translate><!--T:206--> The braces are therefore considered invalid characters in the page name.</translate> <translate><!--T:207--> Instead, a template can be used like <tvar name="1">[[template:pipe trick]]</tvar>: <tvar name="2"><nowiki>k}}</nowiki></tvar> which renders as <tvar name="3">k}}</tvar>.</translate>

<translate>
====Inverse pipe trick==== <!--T:208-->

<!--T:209-->
On page "<tvar name="1">A (c)</tvar>", <tvar name="2"><nowiki>[[|b]]</nowiki></tvar> is converted to <tvar name="3"><nowiki>[[b (c)|b]]</nowiki></tvar> automatically.

<!--T:210-->
Similarly, on page "<tvar name="1">A, c</tvar>", <tvar name="2"><nowiki>[[|b]]</nowiki></tvar> is converted to <tvar name="3"><nowiki>[[b, c|b]]</nowiki></tvar> automatically.