![]() | This help page is a how-to guide. It details processes or procedures of some aspect(s) of Wikipedia's norms and practices. It is not one of Wikipedia's policies or guidelines, as it has not been thoroughly vetted by the community. |
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A piped link is an internal link with wikitext that creates hyperlinked (underlined, clickable) text displayed on a Wikipedia page that is different from the title of the page to which the text links. For example, the wikitext [[train station|station]]
displays as station but links to the train station Wikipedia article.
Do not confuse piped links and redirects: they are two very different mechanisms. Both allow the displayed text of a link to differ from the title of the final destination page (the page that a reader will see after clicking that link). However, a piped link conceals the destination page's title only in that single line on the single page where its wikitext is used, while on any page throughout Wikipedia any link, piped or not, to a specific redirect page will always lead to the same destination page.
Piped links are useful for preserving the grammatical structure and flow of a sentence when:
To create the pipe ("|") character (also known as a vertical bar), you may press (⇧ Shift + Backslash) on English-layout keyboards. On Spanish keyboards the pipe character can be obtained by pressing (⇮ AltGr+1). More simply, note that the pipe character is the third character that appears in the "wiki markup" section of symbols at the bottom of the symbol page that appears in "edit this page" mode. Clicking on the pipe symbol there inserts it at the cursor spot, just as happens for any symbol chosen from this page. For full details on how to use this feature, see Help:Piped link.
First of all, keep links as simple as possible:
[[Leningrad]]
currently redirects to Saint Petersburg, but one day it could be decided to spin off a dedicated article about the old city of Leningrad; when that happens, all existing links [[Leningrad]]
will automatically point to the correct article, while the unnecessarily piped ones [[Saint Petersburg|Leningrad]]
will not.
Keep piped links as transparent as possible. Do not use piped links to create "Easter egg" links that require the reader to open them before understanding what's going on. Wikipedia is not an Advent calendar. Also remember there are people who print the articles. For example, do not write this:
The readers will not see the hidden reference to Thomas Bowdler unless they click or hover over the piped exceptions link. In a print version, there is no link to select, and the reference is lost. Instead, reference the article explicitly:
Similarly, instead of:
consider:
or simply:
It will occasionally be useful to link to a fuller explanation of a phrase; when this is done, link the phrase, not a single word.
If Pontiac's War is defined as having been
and there is no space for further explanation in that context (this is a quote from the lead of the article), then some readers will value a link to a description of the confederation. This should not be linked from the word confederation; the link in the following phrase:
looks like a link to the article Confederation. At a minimum, link something that wouldn't be the title of an article under our article title conventions:
Further, it is inappropriate to contain veiled and uncited interpretations of fiction through piped links, as in this excerpt from the The Iron Dream article, which contained over 30 interpretations hidden in links:
Such interpretation, if properly sourced, should be placed in its own section and citations provided. If the interpretation is purely that of the editor, it is original research and should be removed.
In the case of a category link, a piped link overrides the alphabetical sort order of the article, as shown on the linked category page.
For example, in a hypothetical new article Albert Einstein, using [[Category:Theoretical physicists]]
places him in Category:Theoretical physicists. That category page will list him as "Albert Einstein", but it will list him among the "A"s, instead of the "E"s (where he belongs), because it sorts on the article's name, "Albert Einstein".
One way to impose correct sort order is to use [[Category:Theoretical physicists|Einstein, Albert]]
, which makes that category page list "Albert Einstein" among the "E"s (between "Martin B. Einhorn" and "John Ellis (physicist)"), by sorting it as if it were "Einstein, Albert" rather than "Albert Einstein".
However, the actual Albert Einstein page has 83 category links. Piping every category link would be unattractive. As is standard for most "person" pages, that page uses {{DEFAULTSORT:Einstein, Albert}}
to override the default sorting for category links. On that page, [[Category:Theoretical physicists]]
places him in Category:Theoretical physicists as "Albert Einstein", and makes that category page sort him as "Einstein, Albert", without need of a piped link, and likewise for 81 other category links. That page uses one piped category link, [[Category:Einstein family|Albert]]
, to place him in Category:Einstein family and make (only) that category alphabetize him under "Albert".
The pipe character is also used when supplying parameters to templates; this is not the same thing as a piped link.